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| author | Andrew Bartlett <abartlet@samba.org> | 2006-11-07 06:59:56 +0000 |
|---|---|---|
| committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 14:25:03 -0500 |
| commit | 3c1e780ec7e16dc6667402bbc65708bf9a5c062f (patch) | |
| tree | 2102bb577ea9f00751b8c869b0a5c756fc2ae8e5 /source4/heimdal/lib/gssapi/krb5 | |
| parent | 8b91594e0936bbaedf5430406fcf8df3ea406c10 (diff) | |
| download | samba-3c1e780ec7e16dc6667402bbc65708bf9a5c062f.tar.gz samba-3c1e780ec7e16dc6667402bbc65708bf9a5c062f.tar.bz2 samba-3c1e780ec7e16dc6667402bbc65708bf9a5c062f.zip | |
r19604: This is a massive commit, and I appologise in advance for it's size.
This merges Samba4 with lorikeet-heimdal, which itself has been
tracking Heimdal CVS for the past couple of weeks.
This is such a big change because Heimdal reorganised it's internal
structures, with the mechglue merge, and because many of our 'wishes' have been granted: we now have DCE_STYLE GSSAPI, send_to_kdc hooks and many other features merged into the mainline code. We have adapted to upstream's choice of API in these cases.
In gensec_gssapi and gensec_krb5, we either expect a valid PAC, or NO
PAC. This matches windows behavour. We also have an option to
require the PAC to be present (which allows us to automate the testing
of this code).
This also includes a restructure of how the kerberos dependencies are
handled, due to the fallout of the merge.
Andrew Bartlett
(This used to be commit 4826f1735197c2a471d771495e6d4c1051b4c471)
Diffstat (limited to 'source4/heimdal/lib/gssapi/krb5')
51 files changed, 11572 insertions, 0 deletions
diff --git a/source4/heimdal/lib/gssapi/krb5/8003.c b/source4/heimdal/lib/gssapi/krb5/8003.c new file mode 100644 index 0000000000..0123f67e09 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/8003.c @@ -0,0 +1,248 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: 8003.c,v 1.20 2006/10/07 22:13:51 lha Exp $"); + +krb5_error_code +_gsskrb5_encode_om_uint32(OM_uint32 n, u_char *p) +{ + p[0] = (n >> 0) & 0xFF; + p[1] = (n >> 8) & 0xFF; + p[2] = (n >> 16) & 0xFF; + p[3] = (n >> 24) & 0xFF; + return 0; +} + +krb5_error_code +_gsskrb5_encode_be_om_uint32(OM_uint32 n, u_char *p) +{ + p[0] = (n >> 24) & 0xFF; + p[1] = (n >> 16) & 0xFF; + p[2] = (n >> 8) & 0xFF; + p[3] = (n >> 0) & 0xFF; + return 0; +} + +krb5_error_code +_gsskrb5_decode_om_uint32(const void *ptr, OM_uint32 *n) +{ + const u_char *p = ptr; + *n = (p[0] << 0) | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); + return 0; +} + +krb5_error_code +_gsskrb5_decode_be_om_uint32(const void *ptr, OM_uint32 *n) +{ + const u_char *p = ptr; + *n = (p[0] <<24) | (p[1] << 16) | (p[2] << 8) | (p[3] << 0); + return 0; +} + +static krb5_error_code +hash_input_chan_bindings (const gss_channel_bindings_t b, + u_char *p) +{ + u_char num[4]; + MD5_CTX md5; + + MD5_Init(&md5); + _gsskrb5_encode_om_uint32 (b->initiator_addrtype, num); + MD5_Update (&md5, num, sizeof(num)); + _gsskrb5_encode_om_uint32 (b->initiator_address.length, num); + MD5_Update (&md5, num, sizeof(num)); + if (b->initiator_address.length) + MD5_Update (&md5, + b->initiator_address.value, + b->initiator_address.length); + _gsskrb5_encode_om_uint32 (b->acceptor_addrtype, num); + MD5_Update (&md5, num, sizeof(num)); + _gsskrb5_encode_om_uint32 (b->acceptor_address.length, num); + MD5_Update (&md5, num, sizeof(num)); + if (b->acceptor_address.length) + MD5_Update (&md5, + b->acceptor_address.value, + b->acceptor_address.length); + _gsskrb5_encode_om_uint32 (b->application_data.length, num); + MD5_Update (&md5, num, sizeof(num)); + if (b->application_data.length) + MD5_Update (&md5, + b->application_data.value, + b->application_data.length); + MD5_Final (p, &md5); + return 0; +} + +/* + * create a checksum over the chanel bindings in + * `input_chan_bindings', `flags' and `fwd_data' and return it in + * `result' + */ + +OM_uint32 +_gsskrb5_create_8003_checksum ( + OM_uint32 *minor_status, + const gss_channel_bindings_t input_chan_bindings, + OM_uint32 flags, + const krb5_data *fwd_data, + Checksum *result) +{ + u_char *p; + + /* + * see rfc1964 (section 1.1.1 (Initial Token), and the checksum value + * field's format) */ + result->cksumtype = CKSUMTYPE_GSSAPI; + if (fwd_data->length > 0 && (flags & GSS_C_DELEG_FLAG)) + result->checksum.length = 24 + 4 + fwd_data->length; + else + result->checksum.length = 24; + result->checksum.data = malloc (result->checksum.length); + if (result->checksum.data == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + p = result->checksum.data; + _gsskrb5_encode_om_uint32 (16, p); + p += 4; + if (input_chan_bindings == GSS_C_NO_CHANNEL_BINDINGS) { + memset (p, 0, 16); + } else { + hash_input_chan_bindings (input_chan_bindings, p); + } + p += 16; + _gsskrb5_encode_om_uint32 (flags, p); + p += 4; + + if (fwd_data->length > 0 && (flags & GSS_C_DELEG_FLAG)) { + + *p++ = (1 >> 0) & 0xFF; /* DlgOpt */ /* == 1 */ + *p++ = (1 >> 8) & 0xFF; /* DlgOpt */ /* == 0 */ + *p++ = (fwd_data->length >> 0) & 0xFF; /* Dlgth */ + *p++ = (fwd_data->length >> 8) & 0xFF; /* Dlgth */ + memcpy(p, (unsigned char *) fwd_data->data, fwd_data->length); + + p += fwd_data->length; + } + + return GSS_S_COMPLETE; +} + +/* + * verify the checksum in `cksum' over `input_chan_bindings' + * returning `flags' and `fwd_data' + */ + +OM_uint32 +_gsskrb5_verify_8003_checksum( + OM_uint32 *minor_status, + const gss_channel_bindings_t input_chan_bindings, + const Checksum *cksum, + OM_uint32 *flags, + krb5_data *fwd_data) +{ + unsigned char hash[16]; + unsigned char *p; + OM_uint32 length; + int DlgOpt; + static unsigned char zeros[16]; + + if (cksum == NULL) { + *minor_status = 0; + return GSS_S_BAD_BINDINGS; + } + + /* XXX should handle checksums > 24 bytes */ + if(cksum->cksumtype != CKSUMTYPE_GSSAPI || cksum->checksum.length < 24) { + *minor_status = 0; + return GSS_S_BAD_BINDINGS; + } + + p = cksum->checksum.data; + _gsskrb5_decode_om_uint32(p, &length); + if(length != sizeof(hash)) { + *minor_status = 0; + return GSS_S_BAD_BINDINGS; + } + + p += 4; + + if (input_chan_bindings != GSS_C_NO_CHANNEL_BINDINGS + && memcmp(p, zeros, sizeof(zeros)) != 0) { + if(hash_input_chan_bindings(input_chan_bindings, hash) != 0) { + *minor_status = 0; + return GSS_S_BAD_BINDINGS; + } + if(memcmp(hash, p, sizeof(hash)) != 0) { + *minor_status = 0; + return GSS_S_BAD_BINDINGS; + } + } + + p += sizeof(hash); + + _gsskrb5_decode_om_uint32(p, flags); + p += 4; + + if (cksum->checksum.length > 24 && (*flags & GSS_C_DELEG_FLAG)) { + if(cksum->checksum.length < 28) { + *minor_status = 0; + return GSS_S_BAD_BINDINGS; + } + + DlgOpt = (p[0] << 0) | (p[1] << 8); + p += 2; + if (DlgOpt != 1) { + *minor_status = 0; + return GSS_S_BAD_BINDINGS; + } + + fwd_data->length = (p[0] << 0) | (p[1] << 8); + p += 2; + if(cksum->checksum.length < 28 + fwd_data->length) { + *minor_status = 0; + return GSS_S_BAD_BINDINGS; + } + fwd_data->data = malloc(fwd_data->length); + if (fwd_data->data == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + memcpy(fwd_data->data, p, fwd_data->length); + } + + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/accept_sec_context.c b/source4/heimdal/lib/gssapi/krb5/accept_sec_context.c new file mode 100644 index 0000000000..e42bb11b85 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/accept_sec_context.c @@ -0,0 +1,774 @@ +/* + * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: accept_sec_context.c,v 1.64 2006/10/25 04:19:45 lha Exp $"); + +HEIMDAL_MUTEX gssapi_keytab_mutex = HEIMDAL_MUTEX_INITIALIZER; +krb5_keytab _gsskrb5_keytab; + +OM_uint32 +_gsskrb5_register_acceptor_identity (const char *identity) +{ + krb5_error_code ret; + + ret = _gsskrb5_init(); + if(ret) + return GSS_S_FAILURE; + + HEIMDAL_MUTEX_lock(&gssapi_keytab_mutex); + + if(_gsskrb5_keytab != NULL) { + krb5_kt_close(_gsskrb5_context, _gsskrb5_keytab); + _gsskrb5_keytab = NULL; + } + if (identity == NULL) { + ret = krb5_kt_default(_gsskrb5_context, &_gsskrb5_keytab); + } else { + char *p; + + asprintf(&p, "FILE:%s", identity); + if(p == NULL) { + HEIMDAL_MUTEX_unlock(&gssapi_keytab_mutex); + return GSS_S_FAILURE; + } + ret = krb5_kt_resolve(_gsskrb5_context, p, &_gsskrb5_keytab); + free(p); + } + HEIMDAL_MUTEX_unlock(&gssapi_keytab_mutex); + if(ret) + return GSS_S_FAILURE; + return GSS_S_COMPLETE; +} + +void +_gsskrb5i_is_cfx(gsskrb5_ctx ctx, int *is_cfx) +{ + krb5_keyblock *key; + int acceptor = (ctx->more_flags & LOCAL) == 0; + + *is_cfx = 0; + + if (acceptor) { + if (ctx->auth_context->local_subkey) + key = ctx->auth_context->local_subkey; + else + key = ctx->auth_context->remote_subkey; + } else { + if (ctx->auth_context->remote_subkey) + key = ctx->auth_context->remote_subkey; + else + key = ctx->auth_context->local_subkey; + } + if (key == NULL) + key = ctx->auth_context->keyblock; + + if (key == NULL) + return; + + switch (key->keytype) { + case ETYPE_DES_CBC_CRC: + case ETYPE_DES_CBC_MD4: + case ETYPE_DES_CBC_MD5: + case ETYPE_DES3_CBC_MD5: + case ETYPE_DES3_CBC_SHA1: + case ETYPE_ARCFOUR_HMAC_MD5: + case ETYPE_ARCFOUR_HMAC_MD5_56: + break; + default : + *is_cfx = 1; + if ((acceptor && ctx->auth_context->local_subkey) || + (!acceptor && ctx->auth_context->remote_subkey)) + ctx->more_flags |= ACCEPTOR_SUBKEY; + break; + } +} + + +static OM_uint32 +gsskrb5_accept_delegated_token +(OM_uint32 * minor_status, + gsskrb5_ctx ctx, + gss_cred_id_t * delegated_cred_handle + ) +{ + krb5_ccache ccache = NULL; + krb5_error_code kret; + int32_t ac_flags, ret = GSS_S_COMPLETE; + + *minor_status = 0; + + /* XXX Create a new delegated_cred_handle? */ + if (delegated_cred_handle == NULL) { + kret = krb5_cc_default (_gsskrb5_context, &ccache); + } else { + *delegated_cred_handle = NULL; + kret = krb5_cc_gen_new (_gsskrb5_context, &krb5_mcc_ops, &ccache); + } + if (kret) { + ctx->flags &= ~GSS_C_DELEG_FLAG; + goto out; + } + + kret = krb5_cc_initialize(_gsskrb5_context, ccache, ctx->source); + if (kret) { + ctx->flags &= ~GSS_C_DELEG_FLAG; + goto out; + } + + krb5_auth_con_removeflags(_gsskrb5_context, + ctx->auth_context, + KRB5_AUTH_CONTEXT_DO_TIME, + &ac_flags); + kret = krb5_rd_cred2(_gsskrb5_context, + ctx->auth_context, + ccache, + &ctx->fwd_data); + if (kret) + _gsskrb5_set_error_string(); + krb5_auth_con_setflags(_gsskrb5_context, + ctx->auth_context, + ac_flags); + if (kret) { + ctx->flags &= ~GSS_C_DELEG_FLAG; + ret = GSS_S_FAILURE; + *minor_status = kret; + goto out; + } + + if (delegated_cred_handle) { + gsskrb5_cred handle; + + ret = _gsskrb5_import_cred(minor_status, + ccache, + NULL, + NULL, + delegated_cred_handle); + if (ret != GSS_S_COMPLETE) + goto out; + + handle = (gsskrb5_cred) *delegated_cred_handle; + + handle->cred_flags |= GSS_CF_DESTROY_CRED_ON_RELEASE; + krb5_cc_close(_gsskrb5_context, ccache); + ccache = NULL; + } + +out: + if (ccache) { + if (delegated_cred_handle == NULL) + krb5_cc_close(_gsskrb5_context, ccache); + else + krb5_cc_destroy(_gsskrb5_context, ccache); + } + return ret; +} + +static OM_uint32 +gsskrb5_acceptor_ready(OM_uint32 * minor_status, + gsskrb5_ctx ctx, + gss_cred_id_t *delegated_cred_handle) +{ + OM_uint32 ret; + int32_t seq_number; + int is_cfx = 0; + + krb5_auth_getremoteseqnumber (_gsskrb5_context, + ctx->auth_context, + &seq_number); + + _gsskrb5i_is_cfx(ctx, &is_cfx); + + ret = _gssapi_msg_order_create(minor_status, + &ctx->order, + _gssapi_msg_order_f(ctx->flags), + seq_number, 0, is_cfx); + if (ret) + return ret; + + /* + * If requested, set local sequence num to remote sequence if this + * isn't a mutual authentication context + */ + if (!(ctx->flags & GSS_C_MUTUAL_FLAG) && _gssapi_msg_order_f(ctx->flags)) { + krb5_auth_con_setlocalseqnumber(_gsskrb5_context, + ctx->auth_context, + seq_number); + } + + /* + * We should handle the delegation ticket, in case it's there + */ + if (ctx->fwd_data.length > 0 && (ctx->flags & GSS_C_DELEG_FLAG)) { + ret = gsskrb5_accept_delegated_token(minor_status, + ctx, + delegated_cred_handle); + if (ret) + return ret; + } else { + /* Well, looks like it wasn't there after all */ + ctx->flags &= ~GSS_C_DELEG_FLAG; + } + + ctx->state = ACCEPTOR_READY; + ctx->more_flags |= OPEN; + + return GSS_S_COMPLETE; +} + +static OM_uint32 +gsskrb5_acceptor_start(OM_uint32 * minor_status, + gsskrb5_ctx ctx, + const gss_cred_id_t acceptor_cred_handle, + const gss_buffer_t input_token_buffer, + const gss_channel_bindings_t input_chan_bindings, + gss_name_t * src_name, + gss_OID * mech_type, + gss_buffer_t output_token, + OM_uint32 * ret_flags, + OM_uint32 * time_rec, + gss_cred_id_t * delegated_cred_handle) +{ + krb5_error_code kret; + OM_uint32 ret = GSS_S_COMPLETE; + krb5_data indata; + krb5_flags ap_options; + krb5_ticket *ticket = NULL; + krb5_keytab keytab = NULL; + krb5_keyblock *keyblock = NULL; + int is_cfx = 0; + const gsskrb5_cred acceptor_cred = (gsskrb5_cred)acceptor_cred_handle; + + /* + * We may, or may not, have an escapsulation. + */ + ret = _gsskrb5_decapsulate (minor_status, + input_token_buffer, + &indata, + "\x01\x00", + GSS_KRB5_MECHANISM); + + if (ret) { + /* Assume that there is no OID wrapping. */ + indata.length = input_token_buffer->length; + indata.data = input_token_buffer->value; + } + + /* + * We need to get our keytab + */ + if (acceptor_cred == NULL) { + if (_gsskrb5_keytab != NULL) + keytab = _gsskrb5_keytab; + } else if (acceptor_cred->keytab != NULL) { + keytab = acceptor_cred->keytab; + } + + /* + * We need to check the ticket and create the AP-REP packet + */ + kret = krb5_rd_req_return_keyblock(_gsskrb5_context, + &ctx->auth_context, + &indata, + (acceptor_cred == NULL) ? NULL : acceptor_cred->principal, + keytab, + &ap_options, + &ticket, + &keyblock); + if (kret) { + ret = GSS_S_FAILURE; + *minor_status = kret; + _gsskrb5_set_error_string (); + return ret; + } + + /* + * We need to remember some data on the context_handle. + */ + ctx->ticket = ticket; + ctx->service_keyblock = keyblock; + ctx->lifetime = ticket->ticket.endtime; + + /* + * We need to copy the principal names to the context and the + * calling layer. + */ + kret = krb5_copy_principal(_gsskrb5_context, + ticket->client, + &ctx->source); + if (kret) { + ret = GSS_S_FAILURE; + *minor_status = kret; + _gsskrb5_set_error_string (); + } + + kret = krb5_copy_principal(_gsskrb5_context, ticket->server, &ctx->target); + if (kret) { + ret = GSS_S_FAILURE; + *minor_status = kret; + _gsskrb5_set_error_string (); + return ret; + } + + /* + * We need to setup some compat stuff, this assumes that + * context_handle->target is already set. + */ + ret = _gss_DES3_get_mic_compat(minor_status, ctx); + if (ret) + return ret; + + if (src_name != NULL) { + kret = krb5_copy_principal (_gsskrb5_context, + ticket->client, + (gsskrb5_name*)src_name); + if (kret) { + ret = GSS_S_FAILURE; + *minor_status = kret; + _gsskrb5_set_error_string (); + return ret; + } + } + + /* + * We need to get the flags out of the 8003 checksum. + */ + { + krb5_authenticator authenticator; + + kret = krb5_auth_con_getauthenticator(_gsskrb5_context, + ctx->auth_context, + &authenticator); + if(kret) { + ret = GSS_S_FAILURE; + *minor_status = kret; + _gsskrb5_set_error_string (); + return ret; + } + + if (authenticator->cksum->cksumtype == CKSUMTYPE_GSSAPI) { + ret = _gsskrb5_verify_8003_checksum(minor_status, + input_chan_bindings, + authenticator->cksum, + &ctx->flags, + &ctx->fwd_data); + + krb5_free_authenticator(_gsskrb5_context, &authenticator); + if (ret) { + return ret; + } + } else { + krb5_crypto crypto; + + kret = krb5_crypto_init(_gsskrb5_context, + ctx->auth_context->keyblock, + 0, &crypto); + if(kret) { + krb5_free_authenticator(_gsskrb5_context, &authenticator); + + ret = GSS_S_FAILURE; + *minor_status = kret; + _gsskrb5_set_error_string (); + return ret; + } + + /* + * Windows accepts Samba3's use of a kerberos, rather than + * GSSAPI checksum here + */ + + kret = krb5_verify_checksum(_gsskrb5_context, + crypto, KRB5_KU_AP_REQ_AUTH_CKSUM, NULL, 0, + authenticator->cksum); + krb5_free_authenticator(_gsskrb5_context, &authenticator); + krb5_crypto_destroy(_gsskrb5_context, crypto); + + if(kret) { + ret = GSS_S_BAD_SIG; + *minor_status = kret; + _gsskrb5_set_error_string (); + return ret; + } + + /* + * Samba style get some flags (but not DCE-STYLE) + */ + ctx->flags = + GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG; + } + } + + if(ctx->flags & GSS_C_MUTUAL_FLAG) { + krb5_data outbuf; + + _gsskrb5i_is_cfx(ctx, &is_cfx); + + if (is_cfx != 0 + || (ap_options & AP_OPTS_USE_SUBKEY)) { + kret = krb5_auth_con_addflags(_gsskrb5_context, + ctx->auth_context, + KRB5_AUTH_CONTEXT_USE_SUBKEY, + NULL); + ctx->more_flags |= ACCEPTOR_SUBKEY; + } + + kret = krb5_mk_rep(_gsskrb5_context, + ctx->auth_context, + &outbuf); + if (kret) { + *minor_status = kret; + _gsskrb5_set_error_string (); + return GSS_S_FAILURE; + } + + if (ctx->flags & GSS_C_DCE_STYLE) { + output_token->length = outbuf.length; + output_token->value = outbuf.data; + } else { + ret = _gsskrb5_encapsulate(minor_status, + &outbuf, + output_token, + "\x02\x00", + GSS_KRB5_MECHANISM); + krb5_data_free (&outbuf); + if (ret) + return ret; + } + } + + ctx->flags |= GSS_C_TRANS_FLAG; + + /* Remember the flags */ + + ctx->lifetime = ticket->ticket.endtime; + ctx->more_flags |= OPEN; + + if (mech_type) + *mech_type = GSS_KRB5_MECHANISM; + + if (time_rec) { + ret = _gsskrb5_lifetime_left(minor_status, + ctx->lifetime, + time_rec); + if (ret) { + return ret; + } + } + + /* + * When GSS_C_DCE_STYLE is in use, we need ask for a AP-REP from + * the client. + */ + if (ctx->flags & GSS_C_DCE_STYLE) { + /* + * Return flags to caller, but we haven't processed + * delgations yet + */ + if (ret_flags) + *ret_flags = (ctx->flags & ~GSS_C_DELEG_FLAG); + + ctx->state = ACCEPTOR_WAIT_FOR_DCESTYLE; + return GSS_S_CONTINUE_NEEDED; + } + + ret = gsskrb5_acceptor_ready(minor_status, ctx, delegated_cred_handle); + + if (ret_flags) + *ret_flags = ctx->flags; + + return ret; +} + +static OM_uint32 +acceptor_wait_for_dcestyle(OM_uint32 * minor_status, + gsskrb5_ctx ctx, + const gss_cred_id_t acceptor_cred_handle, + const gss_buffer_t input_token_buffer, + const gss_channel_bindings_t input_chan_bindings, + gss_name_t * src_name, + gss_OID * mech_type, + gss_buffer_t output_token, + OM_uint32 * ret_flags, + OM_uint32 * time_rec, + gss_cred_id_t * delegated_cred_handle) +{ + OM_uint32 ret; + krb5_error_code kret; + krb5_data inbuf; + int32_t r_seq_number, l_seq_number; + + /* + * We know it's GSS_C_DCE_STYLE so we don't need to decapsulate the AP_REP + */ + + inbuf.length = input_token_buffer->length; + inbuf.data = input_token_buffer->value; + + /* + * We need to remeber the old remote seq_number, then check if the + * client has replied with our local seq_number, and then reset + * the remote seq_number to the old value + */ + { + kret = krb5_auth_con_getlocalseqnumber(_gsskrb5_context, + ctx->auth_context, + &l_seq_number); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + kret = krb5_auth_getremoteseqnumber(_gsskrb5_context, + ctx->auth_context, + &r_seq_number); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + kret = krb5_auth_con_setremoteseqnumber(_gsskrb5_context, + ctx->auth_context, + l_seq_number); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + } + + /* + * We need to verify the AP_REP, but we need to flag that this is + * DCE_STYLE, so don't check the timestamps this time, but put the + * flag DO_TIME back afterward. + */ + { + krb5_ap_rep_enc_part *repl; + int32_t auth_flags; + + krb5_auth_con_removeflags(_gsskrb5_context, + ctx->auth_context, + KRB5_AUTH_CONTEXT_DO_TIME, + &auth_flags); + + kret = krb5_rd_rep(_gsskrb5_context, ctx->auth_context, &inbuf, &repl); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + krb5_free_ap_rep_enc_part(_gsskrb5_context, repl); + krb5_auth_con_setflags(_gsskrb5_context, ctx->auth_context, auth_flags); + } + + /* We need to check the liftime */ + { + OM_uint32 lifetime_rec; + + ret = _gsskrb5_lifetime_left(minor_status, + ctx->lifetime, + &lifetime_rec); + if (ret) { + return ret; + } + if (lifetime_rec == 0) { + return GSS_S_CONTEXT_EXPIRED; + } + + if (time_rec) *time_rec = lifetime_rec; + } + + /* We need to give the caller the flags which are in use */ + if (ret_flags) *ret_flags = ctx->flags; + + if (src_name) { + kret = krb5_copy_principal(_gsskrb5_context, + ctx->source, + (gsskrb5_name*)src_name); + if (kret) { + *minor_status = kret; + _gsskrb5_set_error_string (); + return GSS_S_FAILURE; + } + } + + /* + * After the krb5_rd_rep() the remote and local seq_number should + * be the same, because the client just replies the seq_number + * from our AP-REP in its AP-REP, but then the client uses the + * seq_number from its AP-REQ for GSS_wrap() + */ + { + int32_t tmp_r_seq_number, tmp_l_seq_number; + + kret = krb5_auth_getremoteseqnumber(_gsskrb5_context, + ctx->auth_context, + &tmp_r_seq_number); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + kret = krb5_auth_con_getlocalseqnumber(_gsskrb5_context, + ctx->auth_context, + &tmp_l_seq_number); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + /* + * Here we check if the client has responsed with our local seq_number, + */ + if (tmp_r_seq_number != tmp_l_seq_number) { + return GSS_S_UNSEQ_TOKEN; + } + } + + /* + * We need to reset the remote seq_number, because the client will use, + * the old one for the GSS_wrap() calls + */ + { + kret = krb5_auth_con_setremoteseqnumber(_gsskrb5_context, + ctx->auth_context, + r_seq_number); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + } + + return gsskrb5_acceptor_ready(minor_status, ctx, delegated_cred_handle); +} + + +OM_uint32 +_gsskrb5_accept_sec_context(OM_uint32 * minor_status, + gss_ctx_id_t * context_handle, + const gss_cred_id_t acceptor_cred_handle, + const gss_buffer_t input_token_buffer, + const gss_channel_bindings_t input_chan_bindings, + gss_name_t * src_name, + gss_OID * mech_type, + gss_buffer_t output_token, + OM_uint32 * ret_flags, + OM_uint32 * time_rec, + gss_cred_id_t * delegated_cred_handle) +{ + OM_uint32 ret; + gsskrb5_ctx ctx; + + GSSAPI_KRB5_INIT(); + + output_token->length = 0; + output_token->value = NULL; + + if (src_name != NULL) + *src_name = NULL; + if (mech_type) + *mech_type = GSS_KRB5_MECHANISM; + + if (*context_handle == GSS_C_NO_CONTEXT) { + ret = _gsskrb5_create_ctx(minor_status, + context_handle, + input_chan_bindings, + ACCEPTOR_START); + if (ret) + return ret; + } + + ctx = (gsskrb5_ctx)*context_handle; + + + /* + * TODO: check the channel_bindings + * (above just sets them to krb5 layer) + */ + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + + switch (ctx->state) { + case ACCEPTOR_START: + ret = gsskrb5_acceptor_start(minor_status, + ctx, + acceptor_cred_handle, + input_token_buffer, + input_chan_bindings, + src_name, + mech_type, + output_token, + ret_flags, + time_rec, + delegated_cred_handle); + break; + case ACCEPTOR_WAIT_FOR_DCESTYLE: + ret = acceptor_wait_for_dcestyle(minor_status, + ctx, + acceptor_cred_handle, + input_token_buffer, + input_chan_bindings, + src_name, + mech_type, + output_token, + ret_flags, + time_rec, + delegated_cred_handle); + break; + case ACCEPTOR_READY: + /* + * If we get there, the caller have called + * gss_accept_sec_context() one time too many. + */ + ret = GSS_S_BAD_STATUS; + break; + default: + /* TODO: is this correct here? --metze */ + ret = GSS_S_BAD_STATUS; + break; + } + + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + if (GSS_ERROR(ret)) { + OM_uint32 min2; + _gsskrb5_delete_sec_context(&min2, context_handle, GSS_C_NO_BUFFER); + } + + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/acquire_cred.c b/source4/heimdal/lib/gssapi/krb5/acquire_cred.c new file mode 100644 index 0000000000..df6e137402 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/acquire_cred.c @@ -0,0 +1,379 @@ +/* + * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: acquire_cred.c,v 1.31 2006/10/07 22:13:55 lha Exp $"); + +OM_uint32 +__gsskrb5_ccache_lifetime(OM_uint32 *minor_status, + krb5_ccache id, + krb5_principal principal, + OM_uint32 *lifetime) +{ + krb5_creds in_cred, *out_cred; + krb5_const_realm realm; + krb5_error_code kret; + + memset(&in_cred, 0, sizeof(in_cred)); + in_cred.client = principal; + + realm = krb5_principal_get_realm(_gsskrb5_context, principal); + if (realm == NULL) { + _gsskrb5_clear_status (); + *minor_status = KRB5_PRINC_NOMATCH; /* XXX */ + return GSS_S_FAILURE; + } + + kret = krb5_make_principal(_gsskrb5_context, &in_cred.server, + realm, KRB5_TGS_NAME, realm, NULL); + if (kret) { + _gsskrb5_set_error_string(); + *minor_status = kret; + return GSS_S_FAILURE; + } + + kret = krb5_get_credentials(_gsskrb5_context, 0, + id, &in_cred, &out_cred); + krb5_free_principal(_gsskrb5_context, in_cred.server); + if (kret) { + _gsskrb5_set_error_string(); + *minor_status = kret; + return GSS_S_FAILURE; + } + + *lifetime = out_cred->times.endtime; + krb5_free_creds(_gsskrb5_context, out_cred); + + return GSS_S_COMPLETE; +} + + + + +static krb5_error_code +get_keytab(krb5_keytab *keytab) +{ + char kt_name[256]; + krb5_error_code kret; + + HEIMDAL_MUTEX_lock(&gssapi_keytab_mutex); + + if (_gsskrb5_keytab != NULL) { + kret = krb5_kt_get_name(_gsskrb5_context, + _gsskrb5_keytab, + kt_name, sizeof(kt_name)); + if (kret == 0) + kret = krb5_kt_resolve(_gsskrb5_context, kt_name, keytab); + } else + kret = krb5_kt_default(_gsskrb5_context, keytab); + + HEIMDAL_MUTEX_unlock(&gssapi_keytab_mutex); + + return (kret); +} + +static OM_uint32 acquire_initiator_cred + (OM_uint32 * minor_status, + const gss_name_t desired_name, + OM_uint32 time_req, + const gss_OID_set desired_mechs, + gss_cred_usage_t cred_usage, + gsskrb5_cred handle, + gss_OID_set * actual_mechs, + OM_uint32 * time_rec + ) +{ + OM_uint32 ret; + krb5_creds cred; + krb5_principal def_princ; + krb5_get_init_creds_opt *opt; + krb5_ccache ccache; + krb5_keytab keytab; + krb5_error_code kret; + + keytab = NULL; + ccache = NULL; + def_princ = NULL; + ret = GSS_S_FAILURE; + memset(&cred, 0, sizeof(cred)); + + /* If we have a preferred principal, lets try to find it in all + * caches, otherwise, fall back to default cache. Ignore + * errors. */ + if (handle->principal) + kret = krb5_cc_cache_match (_gsskrb5_context, + handle->principal, + NULL, + &ccache); + + if (ccache == NULL) { + kret = krb5_cc_default(_gsskrb5_context, &ccache); + if (kret) + goto end; + } + kret = krb5_cc_get_principal(_gsskrb5_context, ccache, + &def_princ); + if (kret != 0) { + /* we'll try to use a keytab below */ + krb5_cc_destroy(_gsskrb5_context, ccache); + ccache = NULL; + kret = 0; + } else if (handle->principal == NULL) { + kret = krb5_copy_principal(_gsskrb5_context, def_princ, + &handle->principal); + if (kret) + goto end; + } else if (handle->principal != NULL && + krb5_principal_compare(_gsskrb5_context, handle->principal, + def_princ) == FALSE) { + /* Before failing, lets check the keytab */ + krb5_free_principal(_gsskrb5_context, def_princ); + def_princ = NULL; + } + if (def_princ == NULL) { + /* We have no existing credentials cache, + * so attempt to get a TGT using a keytab. + */ + if (handle->principal == NULL) { + kret = krb5_get_default_principal(_gsskrb5_context, + &handle->principal); + if (kret) + goto end; + } + kret = get_keytab(&keytab); + if (kret) + goto end; + kret = krb5_get_init_creds_opt_alloc(_gsskrb5_context, &opt); + if (kret) + goto end; + kret = krb5_get_init_creds_keytab(_gsskrb5_context, &cred, + handle->principal, keytab, 0, NULL, opt); + krb5_get_init_creds_opt_free(opt); + if (kret) + goto end; + kret = krb5_cc_gen_new(_gsskrb5_context, &krb5_mcc_ops, + &ccache); + if (kret) + goto end; + kret = krb5_cc_initialize(_gsskrb5_context, ccache, cred.client); + if (kret) + goto end; + kret = krb5_cc_store_cred(_gsskrb5_context, ccache, &cred); + if (kret) + goto end; + handle->lifetime = cred.times.endtime; + handle->cred_flags |= GSS_CF_DESTROY_CRED_ON_RELEASE; + } else { + + ret = __gsskrb5_ccache_lifetime(minor_status, + ccache, + handle->principal, + &handle->lifetime); + if (ret != GSS_S_COMPLETE) + goto end; + kret = 0; + } + + handle->ccache = ccache; + ret = GSS_S_COMPLETE; + +end: + if (cred.client != NULL) + krb5_free_cred_contents(_gsskrb5_context, &cred); + if (def_princ != NULL) + krb5_free_principal(_gsskrb5_context, def_princ); + if (keytab != NULL) + krb5_kt_close(_gsskrb5_context, keytab); + if (ret != GSS_S_COMPLETE) { + if (ccache != NULL) + krb5_cc_close(_gsskrb5_context, ccache); + if (kret != 0) { + *minor_status = kret; + _gsskrb5_set_error_string (); + } + } + return (ret); +} + +static OM_uint32 acquire_acceptor_cred + (OM_uint32 * minor_status, + const gss_name_t desired_name, + OM_uint32 time_req, + const gss_OID_set desired_mechs, + gss_cred_usage_t cred_usage, + gsskrb5_cred handle, + gss_OID_set * actual_mechs, + OM_uint32 * time_rec + ) +{ + OM_uint32 ret; + krb5_error_code kret; + + kret = 0; + ret = GSS_S_FAILURE; + kret = get_keytab(&handle->keytab); + if (kret) + goto end; + + /* check that the requested principal exists in the keytab */ + if (handle->principal) { + krb5_keytab_entry entry; + + kret = krb5_kt_get_entry(_gsskrb5_context, handle->keytab, + handle->principal, 0, 0, &entry); + if (kret) + goto end; + krb5_kt_free_entry(_gsskrb5_context, &entry); + } + ret = GSS_S_COMPLETE; + +end: + if (ret != GSS_S_COMPLETE) { + if (handle->keytab != NULL) + krb5_kt_close(_gsskrb5_context, handle->keytab); + if (kret != 0) { + *minor_status = kret; + _gsskrb5_set_error_string (); + } + } + return (ret); +} + +OM_uint32 _gsskrb5_acquire_cred +(OM_uint32 * minor_status, + const gss_name_t desired_name, + OM_uint32 time_req, + const gss_OID_set desired_mechs, + gss_cred_usage_t cred_usage, + gss_cred_id_t * output_cred_handle, + gss_OID_set * actual_mechs, + OM_uint32 * time_rec + ) +{ + gsskrb5_cred handle; + OM_uint32 ret; + + if (cred_usage != GSS_C_ACCEPT && cred_usage != GSS_C_INITIATE && cred_usage != GSS_C_BOTH) { + *minor_status = GSS_KRB5_S_G_BAD_USAGE; + return GSS_S_FAILURE; + } + + GSSAPI_KRB5_INIT (); + + *output_cred_handle = NULL; + if (time_rec) + *time_rec = 0; + if (actual_mechs) + *actual_mechs = GSS_C_NO_OID_SET; + + if (desired_mechs) { + int present = 0; + + ret = _gsskrb5_test_oid_set_member(minor_status, GSS_KRB5_MECHANISM, + desired_mechs, &present); + if (ret) + return ret; + if (!present) { + *minor_status = 0; + return GSS_S_BAD_MECH; + } + } + + handle = calloc(1, sizeof(*handle)); + if (handle == NULL) { + *minor_status = ENOMEM; + return (GSS_S_FAILURE); + } + + HEIMDAL_MUTEX_init(&handle->cred_id_mutex); + + if (desired_name != GSS_C_NO_NAME) { + krb5_principal name = (krb5_principal)desired_name; + ret = krb5_copy_principal(_gsskrb5_context, name, &handle->principal); + if (ret) { + HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex); + _gsskrb5_set_error_string(); + *minor_status = ret; + free(handle); + return GSS_S_FAILURE; + } + } + if (cred_usage == GSS_C_INITIATE || cred_usage == GSS_C_BOTH) { + ret = acquire_initiator_cred(minor_status, desired_name, time_req, + desired_mechs, cred_usage, handle, actual_mechs, time_rec); + if (ret != GSS_S_COMPLETE) { + HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex); + krb5_free_principal(_gsskrb5_context, handle->principal); + free(handle); + return (ret); + } + } + if (cred_usage == GSS_C_ACCEPT || cred_usage == GSS_C_BOTH) { + ret = acquire_acceptor_cred(minor_status, desired_name, time_req, + desired_mechs, cred_usage, handle, actual_mechs, time_rec); + if (ret != GSS_S_COMPLETE) { + HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex); + krb5_free_principal(_gsskrb5_context, handle->principal); + free(handle); + return (ret); + } + } + ret = _gsskrb5_create_empty_oid_set(minor_status, &handle->mechanisms); + if (ret == GSS_S_COMPLETE) + ret = _gsskrb5_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM, + &handle->mechanisms); + if (ret == GSS_S_COMPLETE) + ret = _gsskrb5_inquire_cred(minor_status, (gss_cred_id_t)handle, + NULL, time_rec, NULL, actual_mechs); + if (ret != GSS_S_COMPLETE) { + if (handle->mechanisms != NULL) + _gsskrb5_release_oid_set(NULL, &handle->mechanisms); + HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex); + krb5_free_principal(_gsskrb5_context, handle->principal); + free(handle); + return (ret); + } + *minor_status = 0; + if (time_rec) { + ret = _gsskrb5_lifetime_left(minor_status, + handle->lifetime, + time_rec); + + if (ret) + return ret; + } + handle->usage = cred_usage; + *output_cred_handle = (gss_cred_id_t)handle; + return (GSS_S_COMPLETE); +} diff --git a/source4/heimdal/lib/gssapi/krb5/add_cred.c b/source4/heimdal/lib/gssapi/krb5/add_cred.c new file mode 100644 index 0000000000..4892e84798 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/add_cred.c @@ -0,0 +1,249 @@ +/* + * Copyright (c) 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: add_cred.c,v 1.9 2006/10/07 22:13:58 lha Exp $"); + +OM_uint32 _gsskrb5_add_cred ( + OM_uint32 *minor_status, + const gss_cred_id_t input_cred_handle, + const gss_name_t desired_name, + const gss_OID desired_mech, + gss_cred_usage_t cred_usage, + OM_uint32 initiator_time_req, + OM_uint32 acceptor_time_req, + gss_cred_id_t *output_cred_handle, + gss_OID_set *actual_mechs, + OM_uint32 *initiator_time_rec, + OM_uint32 *acceptor_time_rec) +{ + OM_uint32 ret, lifetime; + gsskrb5_cred cred, handle; + krb5_const_principal dname; + + handle = NULL; + cred = (gsskrb5_cred)input_cred_handle; + dname = (krb5_const_principal)desired_name; + + if (gss_oid_equal(desired_mech, GSS_KRB5_MECHANISM) == 0) { + *minor_status = 0; + return GSS_S_BAD_MECH; + } + + if (cred == NULL && output_cred_handle == NULL) { + *minor_status = 0; + return GSS_S_NO_CRED; + } + + if (cred == NULL) { /* XXX standard conformance failure */ + *minor_status = 0; + return GSS_S_NO_CRED; + } + + /* check if requested output usage is compatible with output usage */ + if (output_cred_handle != NULL) { + HEIMDAL_MUTEX_lock(&cred->cred_id_mutex); + if (cred->usage != cred_usage && cred->usage != GSS_C_BOTH) { + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + *minor_status = GSS_KRB5_S_G_BAD_USAGE; + return(GSS_S_FAILURE); + } + } + + /* check that we have the same name */ + if (dname != NULL && + krb5_principal_compare(_gsskrb5_context, dname, + cred->principal) != FALSE) { + if (output_cred_handle) + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + *minor_status = 0; + return GSS_S_BAD_NAME; + } + + /* make a copy */ + if (output_cred_handle) { + krb5_error_code kret; + + handle = calloc(1, sizeof(*handle)); + if (handle == NULL) { + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + *minor_status = ENOMEM; + return (GSS_S_FAILURE); + } + + handle->usage = cred_usage; + handle->lifetime = cred->lifetime; + handle->principal = NULL; + handle->keytab = NULL; + handle->ccache = NULL; + handle->mechanisms = NULL; + HEIMDAL_MUTEX_init(&handle->cred_id_mutex); + + ret = GSS_S_FAILURE; + + kret = krb5_copy_principal(_gsskrb5_context, cred->principal, + &handle->principal); + if (kret) { + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + free(handle); + *minor_status = kret; + return GSS_S_FAILURE; + } + + if (cred->keytab) { + char name[KRB5_KT_PREFIX_MAX_LEN + MAXPATHLEN]; + int len; + + ret = GSS_S_FAILURE; + + kret = krb5_kt_get_type(_gsskrb5_context, cred->keytab, + name, KRB5_KT_PREFIX_MAX_LEN); + if (kret) { + *minor_status = kret; + goto failure; + } + len = strlen(name); + name[len++] = ':'; + + kret = krb5_kt_get_name(_gsskrb5_context, cred->keytab, + name + len, + sizeof(name) - len); + if (kret) { + *minor_status = kret; + goto failure; + } + + kret = krb5_kt_resolve(_gsskrb5_context, name, + &handle->keytab); + if (kret){ + *minor_status = kret; + goto failure; + } + } + + if (cred->ccache) { + const char *type, *name; + char *type_name; + + ret = GSS_S_FAILURE; + + type = krb5_cc_get_type(_gsskrb5_context, cred->ccache); + if (type == NULL){ + *minor_status = ENOMEM; + goto failure; + } + + if (strcmp(type, "MEMORY") == 0) { + ret = krb5_cc_gen_new(_gsskrb5_context, &krb5_mcc_ops, + &handle->ccache); + if (ret) { + *minor_status = ret; + goto failure; + } + + ret = krb5_cc_copy_cache(_gsskrb5_context, cred->ccache, + handle->ccache); + if (ret) { + *minor_status = ret; + goto failure; + } + + } else { + name = krb5_cc_get_name(_gsskrb5_context, cred->ccache); + if (name == NULL) { + *minor_status = ENOMEM; + goto failure; + } + + asprintf(&type_name, "%s:%s", type, name); + if (type_name == NULL) { + *minor_status = ENOMEM; + goto failure; + } + + kret = krb5_cc_resolve(_gsskrb5_context, type_name, + &handle->ccache); + free(type_name); + if (kret) { + *minor_status = kret; + goto failure; + } + } + } + ret = _gsskrb5_create_empty_oid_set(minor_status, &handle->mechanisms); + if (ret) + goto failure; + + ret = _gsskrb5_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM, + &handle->mechanisms); + if (ret) + goto failure; + } + + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + + ret = _gsskrb5_inquire_cred(minor_status, (gss_cred_id_t)cred, + NULL, &lifetime, NULL, actual_mechs); + if (ret) + goto failure; + + if (initiator_time_rec) + *initiator_time_rec = lifetime; + if (acceptor_time_rec) + *acceptor_time_rec = lifetime; + + if (output_cred_handle) { + *output_cred_handle = (gss_cred_id_t)handle; + } + + *minor_status = 0; + return ret; + + failure: + + if (handle) { + if (handle->principal) + krb5_free_principal(_gsskrb5_context, handle->principal); + if (handle->keytab) + krb5_kt_close(_gsskrb5_context, handle->keytab); + if (handle->ccache) + krb5_cc_destroy(_gsskrb5_context, handle->ccache); + if (handle->mechanisms) + _gsskrb5_release_oid_set(NULL, &handle->mechanisms); + free(handle); + } + if (output_cred_handle) + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/add_oid_set_member.c b/source4/heimdal/lib/gssapi/krb5/add_oid_set_member.c new file mode 100644 index 0000000000..b0ec2c60d8 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/add_oid_set_member.c @@ -0,0 +1,70 @@ +/* + * Copyright (c) 1997 - 2001, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: add_oid_set_member.c,v 1.10 2006/10/07 22:14:00 lha Exp $"); + +OM_uint32 _gsskrb5_add_oid_set_member ( + OM_uint32 * minor_status, + const gss_OID member_oid, + gss_OID_set * oid_set + ) +{ + gss_OID tmp; + size_t n; + OM_uint32 res; + int present; + + res = _gsskrb5_test_oid_set_member(minor_status, member_oid, + *oid_set, &present); + if (res != GSS_S_COMPLETE) + return res; + + if (present) { + *minor_status = 0; + return GSS_S_COMPLETE; + } + + n = (*oid_set)->count + 1; + tmp = realloc ((*oid_set)->elements, n * sizeof(gss_OID_desc)); + if (tmp == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + (*oid_set)->elements = tmp; + (*oid_set)->count = n; + (*oid_set)->elements[n-1] = *member_oid; + *minor_status = 0; + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/address_to_krb5addr.c b/source4/heimdal/lib/gssapi/krb5/address_to_krb5addr.c new file mode 100644 index 0000000000..9aec53faaa --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/address_to_krb5addr.c @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2000 - 2001 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +#include <roken.h> + +krb5_error_code +_gsskrb5i_address_to_krb5addr(OM_uint32 gss_addr_type, + gss_buffer_desc *gss_addr, + int16_t port, + krb5_address *address) +{ + int addr_type; + struct sockaddr sa; + krb5_socklen_t sa_size = sizeof(sa); + krb5_error_code problem; + + if (gss_addr == NULL) + return GSS_S_FAILURE; + + switch (gss_addr_type) { +#ifdef HAVE_IPV6 + case GSS_C_AF_INET6: addr_type = AF_INET6; + break; +#endif /* HAVE_IPV6 */ + + case GSS_C_AF_INET: addr_type = AF_INET; + break; + default: + return GSS_S_FAILURE; + } + + problem = krb5_h_addr2sockaddr (_gsskrb5_context, + addr_type, + gss_addr->value, + &sa, + &sa_size, + port); + if (problem) + return GSS_S_FAILURE; + + problem = krb5_sockaddr2address (_gsskrb5_context, &sa, address); + + return problem; +} diff --git a/source4/heimdal/lib/gssapi/krb5/arcfour.c b/source4/heimdal/lib/gssapi/krb5/arcfour.c new file mode 100644 index 0000000000..82851f5a78 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/arcfour.c @@ -0,0 +1,754 @@ +/* + * Copyright (c) 2003 - 2006 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: arcfour.c,v 1.29 2006/10/07 22:14:05 lha Exp $"); + +/* + * Implements draft-brezak-win2k-krb-rc4-hmac-04.txt + * + * The arcfour message have the following formats: + * + * MIC token + * TOK_ID[2] = 01 01 + * SGN_ALG[2] = 11 00 + * Filler[4] + * SND_SEQ[8] + * SGN_CKSUM[8] + * + * WRAP token + * TOK_ID[2] = 02 01 + * SGN_ALG[2]; + * SEAL_ALG[2] + * Filler[2] + * SND_SEQ[2] + * SGN_CKSUM[8] + * Confounder[8] + */ + +/* + * WRAP in DCE-style have a fixed size header, the oid and length over + * the WRAP header is a total of + * GSS_ARCFOUR_WRAP_TOKEN_DCE_DER_HEADER_SIZE + + * GSS_ARCFOUR_WRAP_TOKEN_SIZE byte (ie total of 45 bytes overhead, + * remember the 2 bytes from APPL [0] SEQ). + */ + +#define GSS_ARCFOUR_WRAP_TOKEN_SIZE 32 +#define GSS_ARCFOUR_WRAP_TOKEN_DCE_DER_HEADER_SIZE 13 + + +static krb5_error_code +arcfour_mic_key(krb5_context context, krb5_keyblock *key, + void *cksum_data, size_t cksum_size, + void *key6_data, size_t key6_size) +{ + krb5_error_code ret; + + Checksum cksum_k5; + krb5_keyblock key5; + char k5_data[16]; + + Checksum cksum_k6; + + char T[4]; + + memset(T, 0, 4); + cksum_k5.checksum.data = k5_data; + cksum_k5.checksum.length = sizeof(k5_data); + + if (key->keytype == KEYTYPE_ARCFOUR_56) { + char L40[14] = "fortybits"; + + memcpy(L40 + 10, T, sizeof(T)); + ret = krb5_hmac(context, CKSUMTYPE_RSA_MD5, + L40, 14, 0, key, &cksum_k5); + memset(&k5_data[7], 0xAB, 9); + } else { + ret = krb5_hmac(context, CKSUMTYPE_RSA_MD5, + T, 4, 0, key, &cksum_k5); + } + if (ret) + return ret; + + key5.keytype = KEYTYPE_ARCFOUR; + key5.keyvalue = cksum_k5.checksum; + + cksum_k6.checksum.data = key6_data; + cksum_k6.checksum.length = key6_size; + + return krb5_hmac(context, CKSUMTYPE_RSA_MD5, + cksum_data, cksum_size, 0, &key5, &cksum_k6); +} + + +static krb5_error_code +arcfour_mic_cksum(krb5_keyblock *key, unsigned usage, + u_char *sgn_cksum, size_t sgn_cksum_sz, + const u_char *v1, size_t l1, + const void *v2, size_t l2, + const void *v3, size_t l3) +{ + Checksum CKSUM; + u_char *ptr; + size_t len; + krb5_crypto crypto; + krb5_error_code ret; + + assert(sgn_cksum_sz == 8); + + len = l1 + l2 + l3; + + ptr = malloc(len); + if (ptr == NULL) + return ENOMEM; + + memcpy(ptr, v1, l1); + memcpy(ptr + l1, v2, l2); + memcpy(ptr + l1 + l2, v3, l3); + + ret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (ret) { + free(ptr); + return ret; + } + + ret = krb5_create_checksum(_gsskrb5_context, + crypto, + usage, + 0, + ptr, len, + &CKSUM); + free(ptr); + if (ret == 0) { + memcpy(sgn_cksum, CKSUM.checksum.data, sgn_cksum_sz); + free_Checksum(&CKSUM); + } + krb5_crypto_destroy(_gsskrb5_context, crypto); + + return ret; +} + + +OM_uint32 +_gssapi_get_mic_arcfour(OM_uint32 * minor_status, + const gsskrb5_ctx context_handle, + gss_qop_t qop_req, + const gss_buffer_t message_buffer, + gss_buffer_t message_token, + krb5_keyblock *key) +{ + krb5_error_code ret; + int32_t seq_number; + size_t len, total_len; + u_char k6_data[16], *p0, *p; + RC4_KEY rc4_key; + + _gsskrb5_encap_length (22, &len, &total_len, GSS_KRB5_MECHANISM); + + message_token->length = total_len; + message_token->value = malloc (total_len); + if (message_token->value == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + p0 = _gssapi_make_mech_header(message_token->value, + len, + GSS_KRB5_MECHANISM); + p = p0; + + *p++ = 0x01; /* TOK_ID */ + *p++ = 0x01; + *p++ = 0x11; /* SGN_ALG */ + *p++ = 0x00; + *p++ = 0xff; /* Filler */ + *p++ = 0xff; + *p++ = 0xff; + *p++ = 0xff; + + p = NULL; + + ret = arcfour_mic_cksum(key, KRB5_KU_USAGE_SIGN, + p0 + 16, 8, /* SGN_CKSUM */ + p0, 8, /* TOK_ID, SGN_ALG, Filer */ + message_buffer->value, message_buffer->length, + NULL, 0); + if (ret) { + _gsskrb5_release_buffer(minor_status, message_token); + *minor_status = ret; + return GSS_S_FAILURE; + } + + ret = arcfour_mic_key(_gsskrb5_context, key, + p0 + 16, 8, /* SGN_CKSUM */ + k6_data, sizeof(k6_data)); + if (ret) { + _gsskrb5_release_buffer(minor_status, message_token); + *minor_status = ret; + return GSS_S_FAILURE; + } + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + krb5_auth_con_getlocalseqnumber (_gsskrb5_context, + context_handle->auth_context, + &seq_number); + p = p0 + 8; /* SND_SEQ */ + _gsskrb5_encode_be_om_uint32(seq_number, p); + + krb5_auth_con_setlocalseqnumber (_gsskrb5_context, + context_handle->auth_context, + ++seq_number); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + memset (p + 4, (context_handle->more_flags & LOCAL) ? 0 : 0xff, 4); + + RC4_set_key (&rc4_key, sizeof(k6_data), k6_data); + RC4 (&rc4_key, 8, p, p); + + memset(&rc4_key, 0, sizeof(rc4_key)); + memset(k6_data, 0, sizeof(k6_data)); + + *minor_status = 0; + return GSS_S_COMPLETE; +} + + +OM_uint32 +_gssapi_verify_mic_arcfour(OM_uint32 * minor_status, + const gsskrb5_ctx context_handle, + const gss_buffer_t message_buffer, + const gss_buffer_t token_buffer, + gss_qop_t * qop_state, + krb5_keyblock *key, + char *type) +{ + krb5_error_code ret; + uint32_t seq_number; + OM_uint32 omret; + u_char SND_SEQ[8], cksum_data[8], *p; + char k6_data[16]; + int cmp; + + if (qop_state) + *qop_state = 0; + + p = token_buffer->value; + omret = _gsskrb5_verify_header (&p, + token_buffer->length, + (u_char *)type, + GSS_KRB5_MECHANISM); + if (omret) + return omret; + + if (memcmp(p, "\x11\x00", 2) != 0) /* SGN_ALG = HMAC MD5 ARCFOUR */ + return GSS_S_BAD_SIG; + p += 2; + if (memcmp (p, "\xff\xff\xff\xff", 4) != 0) + return GSS_S_BAD_MIC; + p += 4; + + ret = arcfour_mic_cksum(key, KRB5_KU_USAGE_SIGN, + cksum_data, sizeof(cksum_data), + p - 8, 8, + message_buffer->value, message_buffer->length, + NULL, 0); + if (ret) { + *minor_status = ret; + return GSS_S_FAILURE; + } + + ret = arcfour_mic_key(_gsskrb5_context, key, + cksum_data, sizeof(cksum_data), + k6_data, sizeof(k6_data)); + if (ret) { + *minor_status = ret; + return GSS_S_FAILURE; + } + + cmp = memcmp(cksum_data, p + 8, 8); + if (cmp) { + *minor_status = 0; + return GSS_S_BAD_MIC; + } + + { + RC4_KEY rc4_key; + + RC4_set_key (&rc4_key, sizeof(k6_data), (void*)k6_data); + RC4 (&rc4_key, 8, p, SND_SEQ); + + memset(&rc4_key, 0, sizeof(rc4_key)); + memset(k6_data, 0, sizeof(k6_data)); + } + + _gsskrb5_decode_be_om_uint32(SND_SEQ, &seq_number); + + if (context_handle->more_flags & LOCAL) + cmp = memcmp(&SND_SEQ[4], "\xff\xff\xff\xff", 4); + else + cmp = memcmp(&SND_SEQ[4], "\x00\x00\x00\x00", 4); + + memset(SND_SEQ, 0, sizeof(SND_SEQ)); + if (cmp != 0) { + *minor_status = 0; + return GSS_S_BAD_MIC; + } + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + omret = _gssapi_msg_order_check(context_handle->order, seq_number); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + if (omret) + return omret; + + *minor_status = 0; + return GSS_S_COMPLETE; +} + +OM_uint32 +_gssapi_wrap_arcfour(OM_uint32 * minor_status, + const gsskrb5_ctx context_handle, + int conf_req_flag, + gss_qop_t qop_req, + const gss_buffer_t input_message_buffer, + int * conf_state, + gss_buffer_t output_message_buffer, + krb5_keyblock *key) +{ + u_char Klocaldata[16], k6_data[16], *p, *p0; + size_t len, total_len, datalen; + krb5_keyblock Klocal; + krb5_error_code ret; + int32_t seq_number; + + if (conf_state) + *conf_state = 0; + + if ((context_handle->flags & GSS_C_DCE_STYLE) == 0) { + datalen = input_message_buffer->length + 1 /* padding */; + + len = datalen + GSS_ARCFOUR_WRAP_TOKEN_SIZE; + _gssapi_encap_length(len, &len, &total_len, GSS_KRB5_MECHANISM); + } else { + datalen = input_message_buffer->length; + + len = GSS_ARCFOUR_WRAP_TOKEN_SIZE; + _gssapi_encap_length(len, &len, &total_len, GSS_KRB5_MECHANISM); + total_len += datalen; + } + + output_message_buffer->length = total_len; + output_message_buffer->value = malloc (total_len); + if (output_message_buffer->value == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + p0 = _gssapi_make_mech_header(output_message_buffer->value, + len, + GSS_KRB5_MECHANISM); + p = p0; + + *p++ = 0x02; /* TOK_ID */ + *p++ = 0x01; + *p++ = 0x11; /* SGN_ALG */ + *p++ = 0x00; + if (conf_req_flag) { + *p++ = 0x10; /* SEAL_ALG */ + *p++ = 0x00; + } else { + *p++ = 0xff; /* SEAL_ALG */ + *p++ = 0xff; + } + *p++ = 0xff; /* Filler */ + *p++ = 0xff; + + p = NULL; + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + krb5_auth_con_getlocalseqnumber (_gsskrb5_context, + context_handle->auth_context, + &seq_number); + + _gsskrb5_encode_be_om_uint32(seq_number, p0 + 8); + + krb5_auth_con_setlocalseqnumber (_gsskrb5_context, + context_handle->auth_context, + ++seq_number); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + memset (p0 + 8 + 4, + (context_handle->more_flags & LOCAL) ? 0 : 0xff, + 4); + + krb5_generate_random_block(p0 + 24, 8); /* fill in Confounder */ + + /* p points to data */ + p = p0 + GSS_ARCFOUR_WRAP_TOKEN_SIZE; + memcpy(p, input_message_buffer->value, input_message_buffer->length); + + if ((context_handle->flags & GSS_C_DCE_STYLE) == 0) { + p[input_message_buffer->length] = 1; /* PADDING */ + } + + ret = arcfour_mic_cksum(key, KRB5_KU_USAGE_SEAL, + p0 + 16, 8, /* SGN_CKSUM */ + p0, 8, /* TOK_ID, SGN_ALG, SEAL_ALG, Filler */ + p0 + 24, 8, /* Confounder */ + p0 + GSS_ARCFOUR_WRAP_TOKEN_SIZE, + datalen); + if (ret) { + *minor_status = ret; + _gsskrb5_release_buffer(minor_status, output_message_buffer); + return GSS_S_FAILURE; + } + + { + int i; + + Klocal.keytype = key->keytype; + Klocal.keyvalue.data = Klocaldata; + Klocal.keyvalue.length = sizeof(Klocaldata); + + for (i = 0; i < 16; i++) + Klocaldata[i] = ((u_char *)key->keyvalue.data)[i] ^ 0xF0; + } + ret = arcfour_mic_key(_gsskrb5_context, &Klocal, + p0 + 8, 4, /* SND_SEQ */ + k6_data, sizeof(k6_data)); + memset(Klocaldata, 0, sizeof(Klocaldata)); + if (ret) { + _gsskrb5_release_buffer(minor_status, output_message_buffer); + *minor_status = ret; + return GSS_S_FAILURE; + } + + + if(conf_req_flag) { + RC4_KEY rc4_key; + + RC4_set_key (&rc4_key, sizeof(k6_data), (void *)k6_data); + /* XXX ? */ + RC4 (&rc4_key, 8 + datalen, p0 + 24, p0 + 24); /* Confounder + data */ + memset(&rc4_key, 0, sizeof(rc4_key)); + } + memset(k6_data, 0, sizeof(k6_data)); + + ret = arcfour_mic_key(_gsskrb5_context, key, + p0 + 16, 8, /* SGN_CKSUM */ + k6_data, sizeof(k6_data)); + if (ret) { + _gsskrb5_release_buffer(minor_status, output_message_buffer); + *minor_status = ret; + return GSS_S_FAILURE; + } + + { + RC4_KEY rc4_key; + + RC4_set_key (&rc4_key, sizeof(k6_data), k6_data); + RC4 (&rc4_key, 8, p0 + 8, p0 + 8); /* SND_SEQ */ + memset(&rc4_key, 0, sizeof(rc4_key)); + memset(k6_data, 0, sizeof(k6_data)); + } + + if (conf_state) + *conf_state = conf_req_flag; + + *minor_status = 0; + return GSS_S_COMPLETE; +} + +OM_uint32 _gssapi_unwrap_arcfour(OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + const gss_buffer_t input_message_buffer, + gss_buffer_t output_message_buffer, + int *conf_state, + gss_qop_t *qop_state, + krb5_keyblock *key) +{ + u_char Klocaldata[16]; + krb5_keyblock Klocal; + krb5_error_code ret; + uint32_t seq_number; + size_t datalen; + OM_uint32 omret; + u_char k6_data[16], SND_SEQ[8], Confounder[8]; + u_char cksum_data[8]; + u_char *p, *p0; + int cmp; + int conf_flag; + size_t padlen = 0, len; + + if (conf_state) + *conf_state = 0; + if (qop_state) + *qop_state = 0; + + p0 = input_message_buffer->value; + + if ((context_handle->flags & GSS_C_DCE_STYLE) == 0) { + len = input_message_buffer->length; + } else { + len = GSS_ARCFOUR_WRAP_TOKEN_SIZE + + GSS_ARCFOUR_WRAP_TOKEN_DCE_DER_HEADER_SIZE; + if (input_message_buffer->length < len) + return GSS_S_BAD_MECH; + } + + omret = _gssapi_verify_mech_header(&p0, + len, + GSS_KRB5_MECHANISM); + if (omret) + return omret; + + /* length of mech header */ + len = (p0 - (u_char *)input_message_buffer->value) + + GSS_ARCFOUR_WRAP_TOKEN_SIZE; + + if (len > input_message_buffer->length) + return GSS_S_BAD_MECH; + + /* length of data */ + datalen = input_message_buffer->length - len; + + p = p0; + + if (memcmp(p, "\x02\x01", 2) != 0) + return GSS_S_BAD_SIG; + p += 2; + if (memcmp(p, "\x11\x00", 2) != 0) /* SGN_ALG = HMAC MD5 ARCFOUR */ + return GSS_S_BAD_SIG; + p += 2; + + if (memcmp (p, "\x10\x00", 2) == 0) + conf_flag = 1; + else if (memcmp (p, "\xff\xff", 2) == 0) + conf_flag = 0; + else + return GSS_S_BAD_SIG; + + p += 2; + if (memcmp (p, "\xff\xff", 2) != 0) + return GSS_S_BAD_MIC; + p = NULL; + + ret = arcfour_mic_key(_gsskrb5_context, key, + p0 + 16, 8, /* SGN_CKSUM */ + k6_data, sizeof(k6_data)); + if (ret) { + *minor_status = ret; + return GSS_S_FAILURE; + } + + { + RC4_KEY rc4_key; + + RC4_set_key (&rc4_key, sizeof(k6_data), k6_data); + RC4 (&rc4_key, 8, p0 + 8, SND_SEQ); /* SND_SEQ */ + memset(&rc4_key, 0, sizeof(rc4_key)); + memset(k6_data, 0, sizeof(k6_data)); + } + + _gsskrb5_decode_be_om_uint32(SND_SEQ, &seq_number); + + if (context_handle->more_flags & LOCAL) + cmp = memcmp(&SND_SEQ[4], "\xff\xff\xff\xff", 4); + else + cmp = memcmp(&SND_SEQ[4], "\x00\x00\x00\x00", 4); + + if (cmp != 0) { + *minor_status = 0; + return GSS_S_BAD_MIC; + } + + { + int i; + + Klocal.keytype = key->keytype; + Klocal.keyvalue.data = Klocaldata; + Klocal.keyvalue.length = sizeof(Klocaldata); + + for (i = 0; i < 16; i++) + Klocaldata[i] = ((u_char *)key->keyvalue.data)[i] ^ 0xF0; + } + ret = arcfour_mic_key(_gsskrb5_context, &Klocal, + SND_SEQ, 4, + k6_data, sizeof(k6_data)); + memset(Klocaldata, 0, sizeof(Klocaldata)); + if (ret) { + *minor_status = ret; + return GSS_S_FAILURE; + } + + output_message_buffer->value = malloc(datalen); + if (output_message_buffer->value == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + output_message_buffer->length = datalen; + + if(conf_flag) { + RC4_KEY rc4_key; + + RC4_set_key (&rc4_key, sizeof(k6_data), k6_data); + RC4 (&rc4_key, 8, p0 + 24, Confounder); /* Confounder */ + RC4 (&rc4_key, datalen, p0 + GSS_ARCFOUR_WRAP_TOKEN_SIZE, + output_message_buffer->value); + memset(&rc4_key, 0, sizeof(rc4_key)); + } else { + memcpy(Confounder, p0 + 24, 8); /* Confounder */ + memcpy(output_message_buffer->value, + p0 + GSS_ARCFOUR_WRAP_TOKEN_SIZE, + datalen); + } + memset(k6_data, 0, sizeof(k6_data)); + + if ((context_handle->flags & GSS_C_DCE_STYLE) == 0) { + ret = _gssapi_verify_pad(output_message_buffer, datalen, &padlen); + if (ret) { + _gsskrb5_release_buffer(minor_status, output_message_buffer); + *minor_status = 0; + return ret; + } + output_message_buffer->length -= padlen; + } + + ret = arcfour_mic_cksum(key, KRB5_KU_USAGE_SEAL, + cksum_data, sizeof(cksum_data), + p0, 8, + Confounder, sizeof(Confounder), + output_message_buffer->value, + output_message_buffer->length + padlen); + if (ret) { + _gsskrb5_release_buffer(minor_status, output_message_buffer); + *minor_status = ret; + return GSS_S_FAILURE; + } + + cmp = memcmp(cksum_data, p0 + 16, 8); /* SGN_CKSUM */ + if (cmp) { + _gsskrb5_release_buffer(minor_status, output_message_buffer); + *minor_status = 0; + return GSS_S_BAD_MIC; + } + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + omret = _gssapi_msg_order_check(context_handle->order, seq_number); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + if (omret) + return omret; + + if (conf_state) + *conf_state = conf_flag; + + *minor_status = 0; + return GSS_S_COMPLETE; +} + +static OM_uint32 +max_wrap_length_arcfour(const gsskrb5_ctx ctx, + krb5_crypto crypto, + size_t input_length, + OM_uint32 *max_input_size) +{ + /* + * if GSS_C_DCE_STYLE is in use: + * - we only need to encapsulate the WRAP token + * However, since this is a fixed since, we just + */ + if (ctx->flags & GSS_C_DCE_STYLE) { + size_t len, total_len; + + len = GSS_ARCFOUR_WRAP_TOKEN_SIZE; + _gssapi_encap_length(len, &len, &total_len, GSS_KRB5_MECHANISM); + + if (input_length < len) + *max_input_size = 0; + else + *max_input_size = input_length - len; + + } else { + size_t extrasize = GSS_ARCFOUR_WRAP_TOKEN_SIZE; + size_t blocksize = 8; + size_t len, total_len; + + len = 8 + input_length + blocksize + extrasize; + + _gsskrb5_encap_length(len, &len, &total_len, GSS_KRB5_MECHANISM); + + total_len -= input_length; /* token length */ + if (total_len < input_length) { + *max_input_size = (input_length - total_len); + (*max_input_size) &= (~(OM_uint32)(blocksize - 1)); + } else { + *max_input_size = 0; + } + } + + return GSS_S_COMPLETE; +} + +OM_uint32 +_gssapi_wrap_size_arcfour(OM_uint32 *minor_status, + const gsskrb5_ctx ctx, + int conf_req_flag, + gss_qop_t qop_req, + OM_uint32 req_output_size, + OM_uint32 *max_input_size, + krb5_keyblock *key) +{ + krb5_error_code ret; + krb5_crypto crypto; + + ret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + return GSS_S_FAILURE; + } + + ret = max_wrap_length_arcfour(ctx, crypto, + req_output_size, max_input_size); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + + krb5_crypto_destroy(_gsskrb5_context, crypto); + + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/canonicalize_name.c b/source4/heimdal/lib/gssapi/krb5/canonicalize_name.c new file mode 100644 index 0000000000..f69300b590 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/canonicalize_name.c @@ -0,0 +1,46 @@ +/* + * Copyright (c) 1997 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: canonicalize_name.c,v 1.4 2006/10/07 22:14:08 lha Exp $"); + +OM_uint32 _gsskrb5_canonicalize_name ( + OM_uint32 * minor_status, + const gss_name_t input_name, + const gss_OID mech_type, + gss_name_t * output_name + ) +{ + return _gsskrb5_duplicate_name (minor_status, input_name, output_name); +} diff --git a/source4/heimdal/lib/gssapi/krb5/cfx.c b/source4/heimdal/lib/gssapi/krb5/cfx.c new file mode 100755 index 0000000000..cb3f9ee5d3 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/cfx.c @@ -0,0 +1,887 @@ +/* + * Copyright (c) 2003, PADL Software Pty Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of PADL Software nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: cfx.c,v 1.24 2006/10/24 21:13:22 lha Exp $"); + +/* + * Implementation of draft-ietf-krb-wg-gssapi-cfx-06.txt + */ + +#define CFXSentByAcceptor (1 << 0) +#define CFXSealed (1 << 1) +#define CFXAcceptorSubkey (1 << 2) + +krb5_error_code +_gsskrb5cfx_wrap_length_cfx(krb5_crypto crypto, + int conf_req_flag, + size_t input_length, + size_t *output_length, + size_t *cksumsize, + uint16_t *padlength) +{ + krb5_error_code ret; + krb5_cksumtype type; + + /* 16-byte header is always first */ + *output_length = sizeof(gss_cfx_wrap_token_desc); + *padlength = 0; + + ret = krb5_crypto_get_checksum_type(_gsskrb5_context, crypto, &type); + if (ret) + return ret; + + ret = krb5_checksumsize(_gsskrb5_context, type, cksumsize); + if (ret) + return ret; + + if (conf_req_flag) { + size_t padsize; + + /* Header is concatenated with data before encryption */ + input_length += sizeof(gss_cfx_wrap_token_desc); + + ret = krb5_crypto_getpadsize(_gsskrb5_context, crypto, &padsize); + if (ret) { + return ret; + } + if (padsize > 1) { + /* XXX check this */ + *padlength = padsize - (input_length % padsize); + + /* We add the pad ourselves (noted here for completeness only) */ + input_length += *padlength; + } + + *output_length += krb5_get_wrapped_length(_gsskrb5_context, + crypto, input_length); + } else { + /* Checksum is concatenated with data */ + *output_length += input_length + *cksumsize; + } + + assert(*output_length > input_length); + + return 0; +} + +krb5_error_code +_gsskrb5cfx_max_wrap_length_cfx(krb5_crypto crypto, + int conf_req_flag, + size_t input_length, + OM_uint32 *output_length) +{ + krb5_error_code ret; + + *output_length = 0; + + /* 16-byte header is always first */ + if (input_length < 16) + return 0; + input_length -= 16; + + if (conf_req_flag) { + size_t wrapped_size, sz; + + wrapped_size = input_length + 1; + do { + wrapped_size--; + sz = krb5_get_wrapped_length(_gsskrb5_context, + crypto, wrapped_size); + } while (wrapped_size && sz > input_length); + if (wrapped_size == 0) { + *output_length = 0; + return 0; + } + + /* inner header */ + if (wrapped_size < 16) { + *output_length = 0; + return 0; + } + wrapped_size -= 16; + + *output_length = wrapped_size; + } else { + krb5_cksumtype type; + size_t cksumsize; + + ret = krb5_crypto_get_checksum_type(_gsskrb5_context, crypto, &type); + if (ret) + return ret; + + ret = krb5_checksumsize(_gsskrb5_context, type, &cksumsize); + if (ret) + return ret; + + if (input_length < cksumsize) + return 0; + + /* Checksum is concatenated with data */ + *output_length = input_length - cksumsize; + } + + return 0; +} + + +OM_uint32 _gssapi_wrap_size_cfx(OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + int conf_req_flag, + gss_qop_t qop_req, + OM_uint32 req_output_size, + OM_uint32 *max_input_size, + krb5_keyblock *key) +{ + krb5_error_code ret; + krb5_crypto crypto; + + ret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + return GSS_S_FAILURE; + } + + ret = _gsskrb5cfx_max_wrap_length_cfx(crypto, conf_req_flag, + req_output_size, max_input_size); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + + krb5_crypto_destroy(_gsskrb5_context, crypto); + + return GSS_S_COMPLETE; +} + +/* + * Rotate "rrc" bytes to the front or back + */ + +static krb5_error_code +rrc_rotate(void *data, size_t len, uint16_t rrc, krb5_boolean unrotate) +{ + u_char *tmp, buf[256]; + size_t left; + + if (len == 0) + return 0; + + rrc %= len; + + if (rrc == 0) + return 0; + + left = len - rrc; + + if (rrc <= sizeof(buf)) { + tmp = buf; + } else { + tmp = malloc(rrc); + if (tmp == NULL) + return ENOMEM; + } + + if (unrotate) { + memcpy(tmp, data, rrc); + memmove(data, (u_char *)data + rrc, left); + memcpy((u_char *)data + left, tmp, rrc); + } else { + memcpy(tmp, (u_char *)data + left, rrc); + memmove((u_char *)data + rrc, data, left); + memcpy(data, tmp, rrc); + } + + if (rrc > sizeof(buf)) + free(tmp); + + return 0; +} + +OM_uint32 _gssapi_wrap_cfx(OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + int conf_req_flag, + gss_qop_t qop_req, + const gss_buffer_t input_message_buffer, + int *conf_state, + gss_buffer_t output_message_buffer, + krb5_keyblock *key) +{ + krb5_crypto crypto; + gss_cfx_wrap_token token; + krb5_error_code ret; + unsigned usage; + krb5_data cipher; + size_t wrapped_len, cksumsize; + uint16_t padlength, rrc = 0; + int32_t seq_number; + u_char *p; + + ret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + return GSS_S_FAILURE; + } + + ret = _gsskrb5cfx_wrap_length_cfx(crypto, conf_req_flag, + input_message_buffer->length, + &wrapped_len, &cksumsize, &padlength); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + + /* Always rotate encrypted token (if any) and checksum to header */ + rrc = (conf_req_flag ? sizeof(*token) : 0) + (uint16_t)cksumsize; + + output_message_buffer->length = wrapped_len; + output_message_buffer->value = malloc(output_message_buffer->length); + if (output_message_buffer->value == NULL) { + *minor_status = ENOMEM; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + + p = output_message_buffer->value; + token = (gss_cfx_wrap_token)p; + token->TOK_ID[0] = 0x05; + token->TOK_ID[1] = 0x04; + token->Flags = 0; + token->Filler = 0xFF; + if ((context_handle->more_flags & LOCAL) == 0) + token->Flags |= CFXSentByAcceptor; + if (context_handle->more_flags & ACCEPTOR_SUBKEY) + token->Flags |= CFXAcceptorSubkey; + if (conf_req_flag) { + /* + * In Wrap tokens with confidentiality, the EC field is + * used to encode the size (in bytes) of the random filler. + */ + token->Flags |= CFXSealed; + token->EC[0] = (padlength >> 8) & 0xFF; + token->EC[1] = (padlength >> 0) & 0xFF; + } else { + /* + * In Wrap tokens without confidentiality, the EC field is + * used to encode the size (in bytes) of the trailing + * checksum. + * + * This is not used in the checksum calcuation itself, + * because the checksum length could potentially vary + * depending on the data length. + */ + token->EC[0] = 0; + token->EC[1] = 0; + } + + /* + * In Wrap tokens that provide for confidentiality, the RRC + * field in the header contains the hex value 00 00 before + * encryption. + * + * In Wrap tokens that do not provide for confidentiality, + * both the EC and RRC fields in the appended checksum + * contain the hex value 00 00 for the purpose of calculating + * the checksum. + */ + token->RRC[0] = 0; + token->RRC[1] = 0; + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + krb5_auth_con_getlocalseqnumber(_gsskrb5_context, + context_handle->auth_context, + &seq_number); + _gsskrb5_encode_be_om_uint32(0, &token->SND_SEQ[0]); + _gsskrb5_encode_be_om_uint32(seq_number, &token->SND_SEQ[4]); + krb5_auth_con_setlocalseqnumber(_gsskrb5_context, + context_handle->auth_context, + ++seq_number); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + /* + * If confidentiality is requested, the token header is + * appended to the plaintext before encryption; the resulting + * token is {"header" | encrypt(plaintext | pad | "header")}. + * + * If no confidentiality is requested, the checksum is + * calculated over the plaintext concatenated with the + * token header. + */ + if (context_handle->more_flags & LOCAL) { + usage = KRB5_KU_USAGE_INITIATOR_SEAL; + } else { + usage = KRB5_KU_USAGE_ACCEPTOR_SEAL; + } + + if (conf_req_flag) { + /* + * Any necessary padding is added here to ensure that the + * encrypted token header is always at the end of the + * ciphertext. + * + * The specification does not require that the padding + * bytes are initialized. + */ + p += sizeof(*token); + memcpy(p, input_message_buffer->value, input_message_buffer->length); + memset(p + input_message_buffer->length, 0xFF, padlength); + memcpy(p + input_message_buffer->length + padlength, + token, sizeof(*token)); + + ret = krb5_encrypt(_gsskrb5_context, crypto, + usage, p, + input_message_buffer->length + padlength + + sizeof(*token), + &cipher); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + _gsskrb5_release_buffer(minor_status, output_message_buffer); + return GSS_S_FAILURE; + } + assert(sizeof(*token) + cipher.length == wrapped_len); + token->RRC[0] = (rrc >> 8) & 0xFF; + token->RRC[1] = (rrc >> 0) & 0xFF; + + ret = rrc_rotate(cipher.data, cipher.length, rrc, FALSE); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + _gsskrb5_release_buffer(minor_status, output_message_buffer); + return GSS_S_FAILURE; + } + memcpy(p, cipher.data, cipher.length); + krb5_data_free(&cipher); + } else { + char *buf; + Checksum cksum; + + buf = malloc(input_message_buffer->length + sizeof(*token)); + if (buf == NULL) { + *minor_status = ENOMEM; + krb5_crypto_destroy(_gsskrb5_context, crypto); + _gsskrb5_release_buffer(minor_status, output_message_buffer); + return GSS_S_FAILURE; + } + memcpy(buf, input_message_buffer->value, input_message_buffer->length); + memcpy(buf + input_message_buffer->length, token, sizeof(*token)); + + ret = krb5_create_checksum(_gsskrb5_context, crypto, + usage, 0, buf, + input_message_buffer->length + + sizeof(*token), + &cksum); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + _gsskrb5_release_buffer(minor_status, output_message_buffer); + free(buf); + return GSS_S_FAILURE; + } + + free(buf); + + assert(cksum.checksum.length == cksumsize); + token->EC[0] = (cksum.checksum.length >> 8) & 0xFF; + token->EC[1] = (cksum.checksum.length >> 0) & 0xFF; + token->RRC[0] = (rrc >> 8) & 0xFF; + token->RRC[1] = (rrc >> 0) & 0xFF; + + p += sizeof(*token); + memcpy(p, input_message_buffer->value, input_message_buffer->length); + memcpy(p + input_message_buffer->length, + cksum.checksum.data, cksum.checksum.length); + + ret = rrc_rotate(p, + input_message_buffer->length + cksum.checksum.length, rrc, FALSE); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + _gsskrb5_release_buffer(minor_status, output_message_buffer); + free_Checksum(&cksum); + return GSS_S_FAILURE; + } + free_Checksum(&cksum); + } + + krb5_crypto_destroy(_gsskrb5_context, crypto); + + if (conf_state != NULL) { + *conf_state = conf_req_flag; + } + + *minor_status = 0; + return GSS_S_COMPLETE; +} + +OM_uint32 _gssapi_unwrap_cfx(OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + const gss_buffer_t input_message_buffer, + gss_buffer_t output_message_buffer, + int *conf_state, + gss_qop_t *qop_state, + krb5_keyblock *key) +{ + krb5_crypto crypto; + gss_cfx_wrap_token token; + u_char token_flags; + krb5_error_code ret; + unsigned usage; + krb5_data data; + uint16_t ec, rrc; + OM_uint32 seq_number_lo, seq_number_hi; + size_t len; + u_char *p; + + *minor_status = 0; + + if (input_message_buffer->length < sizeof(*token)) { + return GSS_S_DEFECTIVE_TOKEN; + } + + p = input_message_buffer->value; + + token = (gss_cfx_wrap_token)p; + + if (token->TOK_ID[0] != 0x05 || token->TOK_ID[1] != 0x04) { + return GSS_S_DEFECTIVE_TOKEN; + } + + /* Ignore unknown flags */ + token_flags = token->Flags & + (CFXSentByAcceptor | CFXSealed | CFXAcceptorSubkey); + + if (token_flags & CFXSentByAcceptor) { + if ((context_handle->more_flags & LOCAL) == 0) + return GSS_S_DEFECTIVE_TOKEN; + } + + if (context_handle->more_flags & ACCEPTOR_SUBKEY) { + if ((token_flags & CFXAcceptorSubkey) == 0) + return GSS_S_DEFECTIVE_TOKEN; + } else { + if (token_flags & CFXAcceptorSubkey) + return GSS_S_DEFECTIVE_TOKEN; + } + + if (token->Filler != 0xFF) { + return GSS_S_DEFECTIVE_TOKEN; + } + + if (conf_state != NULL) { + *conf_state = (token_flags & CFXSealed) ? 1 : 0; + } + + ec = (token->EC[0] << 8) | token->EC[1]; + rrc = (token->RRC[0] << 8) | token->RRC[1]; + + /* + * Check sequence number + */ + _gsskrb5_decode_be_om_uint32(&token->SND_SEQ[0], &seq_number_hi); + _gsskrb5_decode_be_om_uint32(&token->SND_SEQ[4], &seq_number_lo); + if (seq_number_hi) { + /* no support for 64-bit sequence numbers */ + *minor_status = ERANGE; + return GSS_S_UNSEQ_TOKEN; + } + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + ret = _gssapi_msg_order_check(context_handle->order, seq_number_lo); + if (ret != 0) { + *minor_status = 0; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + _gsskrb5_release_buffer(minor_status, output_message_buffer); + return ret; + } + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + /* + * Decrypt and/or verify checksum + */ + ret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + return GSS_S_FAILURE; + } + + if (context_handle->more_flags & LOCAL) { + usage = KRB5_KU_USAGE_ACCEPTOR_SEAL; + } else { + usage = KRB5_KU_USAGE_INITIATOR_SEAL; + } + + p += sizeof(*token); + len = input_message_buffer->length; + len -= (p - (u_char *)input_message_buffer->value); + + /* Rotate by RRC; bogus to do this in-place XXX */ + *minor_status = rrc_rotate(p, len, rrc, TRUE); + if (*minor_status != 0) { + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + + if (token_flags & CFXSealed) { + ret = krb5_decrypt(_gsskrb5_context, crypto, usage, + p, len, &data); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_BAD_MIC; + } + + /* Check that there is room for the pad and token header */ + if (data.length < ec + sizeof(*token)) { + krb5_crypto_destroy(_gsskrb5_context, crypto); + krb5_data_free(&data); + return GSS_S_DEFECTIVE_TOKEN; + } + p = data.data; + p += data.length - sizeof(*token); + + /* RRC is unprotected; don't modify input buffer */ + ((gss_cfx_wrap_token)p)->RRC[0] = token->RRC[0]; + ((gss_cfx_wrap_token)p)->RRC[1] = token->RRC[1]; + + /* Check the integrity of the header */ + if (memcmp(p, token, sizeof(*token)) != 0) { + krb5_crypto_destroy(_gsskrb5_context, crypto); + krb5_data_free(&data); + return GSS_S_BAD_MIC; + } + + output_message_buffer->value = data.data; + output_message_buffer->length = data.length - ec - sizeof(*token); + } else { + Checksum cksum; + + /* Determine checksum type */ + ret = krb5_crypto_get_checksum_type(_gsskrb5_context, + crypto, &cksum.cksumtype); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + + cksum.checksum.length = ec; + + /* Check we have at least as much data as the checksum */ + if (len < cksum.checksum.length) { + *minor_status = ERANGE; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_BAD_MIC; + } + + /* Length now is of the plaintext only, no checksum */ + len -= cksum.checksum.length; + cksum.checksum.data = p + len; + + output_message_buffer->length = len; /* for later */ + output_message_buffer->value = malloc(len + sizeof(*token)); + if (output_message_buffer->value == NULL) { + *minor_status = ENOMEM; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + + /* Checksum is over (plaintext-data | "header") */ + memcpy(output_message_buffer->value, p, len); + memcpy((u_char *)output_message_buffer->value + len, + token, sizeof(*token)); + + /* EC is not included in checksum calculation */ + token = (gss_cfx_wrap_token)((u_char *)output_message_buffer->value + + len); + token->EC[0] = 0; + token->EC[1] = 0; + token->RRC[0] = 0; + token->RRC[1] = 0; + + ret = krb5_verify_checksum(_gsskrb5_context, crypto, + usage, + output_message_buffer->value, + len + sizeof(*token), + &cksum); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + _gsskrb5_release_buffer(minor_status, output_message_buffer); + return GSS_S_BAD_MIC; + } + } + + krb5_crypto_destroy(_gsskrb5_context, crypto); + + if (qop_state != NULL) { + *qop_state = GSS_C_QOP_DEFAULT; + } + + *minor_status = 0; + return GSS_S_COMPLETE; +} + +OM_uint32 _gssapi_mic_cfx(OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + gss_qop_t qop_req, + const gss_buffer_t message_buffer, + gss_buffer_t message_token, + krb5_keyblock *key) +{ + krb5_crypto crypto; + gss_cfx_mic_token token; + krb5_error_code ret; + unsigned usage; + Checksum cksum; + u_char *buf; + size_t len; + int32_t seq_number; + + ret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + return GSS_S_FAILURE; + } + + len = message_buffer->length + sizeof(*token); + buf = malloc(len); + if (buf == NULL) { + *minor_status = ENOMEM; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + + memcpy(buf, message_buffer->value, message_buffer->length); + + token = (gss_cfx_mic_token)(buf + message_buffer->length); + token->TOK_ID[0] = 0x04; + token->TOK_ID[1] = 0x04; + token->Flags = 0; + if ((context_handle->more_flags & LOCAL) == 0) + token->Flags |= CFXSentByAcceptor; + if (context_handle->more_flags & ACCEPTOR_SUBKEY) + token->Flags |= CFXAcceptorSubkey; + memset(token->Filler, 0xFF, 5); + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + krb5_auth_con_getlocalseqnumber(_gsskrb5_context, + context_handle->auth_context, + &seq_number); + _gsskrb5_encode_be_om_uint32(0, &token->SND_SEQ[0]); + _gsskrb5_encode_be_om_uint32(seq_number, &token->SND_SEQ[4]); + krb5_auth_con_setlocalseqnumber(_gsskrb5_context, + context_handle->auth_context, + ++seq_number); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + if (context_handle->more_flags & LOCAL) { + usage = KRB5_KU_USAGE_INITIATOR_SIGN; + } else { + usage = KRB5_KU_USAGE_ACCEPTOR_SIGN; + } + + ret = krb5_create_checksum(_gsskrb5_context, crypto, + usage, 0, buf, len, &cksum); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + free(buf); + return GSS_S_FAILURE; + } + krb5_crypto_destroy(_gsskrb5_context, crypto); + + /* Determine MIC length */ + message_token->length = sizeof(*token) + cksum.checksum.length; + message_token->value = malloc(message_token->length); + if (message_token->value == NULL) { + *minor_status = ENOMEM; + free_Checksum(&cksum); + free(buf); + return GSS_S_FAILURE; + } + + /* Token is { "header" | get_mic("header" | plaintext-data) } */ + memcpy(message_token->value, token, sizeof(*token)); + memcpy((u_char *)message_token->value + sizeof(*token), + cksum.checksum.data, cksum.checksum.length); + + free_Checksum(&cksum); + free(buf); + + *minor_status = 0; + return GSS_S_COMPLETE; +} + +OM_uint32 _gssapi_verify_mic_cfx(OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + const gss_buffer_t message_buffer, + const gss_buffer_t token_buffer, + gss_qop_t *qop_state, + krb5_keyblock *key) +{ + krb5_crypto crypto; + gss_cfx_mic_token token; + u_char token_flags; + krb5_error_code ret; + unsigned usage; + OM_uint32 seq_number_lo, seq_number_hi; + u_char *buf, *p; + Checksum cksum; + + *minor_status = 0; + + if (token_buffer->length < sizeof(*token)) { + return GSS_S_DEFECTIVE_TOKEN; + } + + p = token_buffer->value; + + token = (gss_cfx_mic_token)p; + + if (token->TOK_ID[0] != 0x04 || token->TOK_ID[1] != 0x04) { + return GSS_S_DEFECTIVE_TOKEN; + } + + /* Ignore unknown flags */ + token_flags = token->Flags & (CFXSentByAcceptor | CFXAcceptorSubkey); + + if (token_flags & CFXSentByAcceptor) { + if ((context_handle->more_flags & LOCAL) == 0) + return GSS_S_DEFECTIVE_TOKEN; + } + if (context_handle->more_flags & ACCEPTOR_SUBKEY) { + if ((token_flags & CFXAcceptorSubkey) == 0) + return GSS_S_DEFECTIVE_TOKEN; + } else { + if (token_flags & CFXAcceptorSubkey) + return GSS_S_DEFECTIVE_TOKEN; + } + + if (memcmp(token->Filler, "\xff\xff\xff\xff\xff", 5) != 0) { + return GSS_S_DEFECTIVE_TOKEN; + } + + /* + * Check sequence number + */ + _gsskrb5_decode_be_om_uint32(&token->SND_SEQ[0], &seq_number_hi); + _gsskrb5_decode_be_om_uint32(&token->SND_SEQ[4], &seq_number_lo); + if (seq_number_hi) { + *minor_status = ERANGE; + return GSS_S_UNSEQ_TOKEN; + } + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + ret = _gssapi_msg_order_check(context_handle->order, seq_number_lo); + if (ret != 0) { + *minor_status = 0; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return ret; + } + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + /* + * Verify checksum + */ + ret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + return GSS_S_FAILURE; + } + + ret = krb5_crypto_get_checksum_type(_gsskrb5_context, crypto, + &cksum.cksumtype); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + + cksum.checksum.data = p + sizeof(*token); + cksum.checksum.length = token_buffer->length - sizeof(*token); + + if (context_handle->more_flags & LOCAL) { + usage = KRB5_KU_USAGE_ACCEPTOR_SIGN; + } else { + usage = KRB5_KU_USAGE_INITIATOR_SIGN; + } + + buf = malloc(message_buffer->length + sizeof(*token)); + if (buf == NULL) { + *minor_status = ENOMEM; + krb5_crypto_destroy(_gsskrb5_context, crypto); + return GSS_S_FAILURE; + } + memcpy(buf, message_buffer->value, message_buffer->length); + memcpy(buf + message_buffer->length, token, sizeof(*token)); + + ret = krb5_verify_checksum(_gsskrb5_context, crypto, + usage, + buf, + sizeof(*token) + message_buffer->length, + &cksum); + krb5_crypto_destroy(_gsskrb5_context, crypto); + if (ret != 0) { + _gsskrb5_set_error_string(); + *minor_status = ret; + free(buf); + return GSS_S_BAD_MIC; + } + + free(buf); + + if (qop_state != NULL) { + *qop_state = GSS_C_QOP_DEFAULT; + } + + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/cfx.h b/source4/heimdal/lib/gssapi/krb5/cfx.h new file mode 100755 index 0000000000..1120544fbe --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/cfx.h @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2003, PADL Software Pty Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of PADL Software nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* $Id: cfx.h,v 1.7 2006/07/19 14:16:33 lha Exp $ */ + +#ifndef GSSAPI_CFX_H_ +#define GSSAPI_CFX_H_ 1 + +/* + * Implementation of draft-ietf-krb-wg-gssapi-cfx-01.txt + */ + +typedef struct gss_cfx_mic_token_desc_struct { + u_char TOK_ID[2]; /* 04 04 */ + u_char Flags; + u_char Filler[5]; + u_char SND_SEQ[8]; +} gss_cfx_mic_token_desc, *gss_cfx_mic_token; + +typedef struct gss_cfx_wrap_token_desc_struct { + u_char TOK_ID[2]; /* 04 05 */ + u_char Flags; + u_char Filler; + u_char EC[2]; + u_char RRC[2]; + u_char SND_SEQ[8]; +} gss_cfx_wrap_token_desc, *gss_cfx_wrap_token; + +typedef struct gss_cfx_delete_token_desc_struct { + u_char TOK_ID[2]; /* 05 04 */ + u_char Flags; + u_char Filler[5]; + u_char SND_SEQ[8]; +} gss_cfx_delete_token_desc, *gss_cfx_delete_token; + +krb5_error_code +_gsskrb5cfx_wrap_length_cfx(krb5_crypto crypto, + int conf_req_flag, + size_t input_length, + size_t *output_length, + size_t *cksumsize, + uint16_t *padlength); + +krb5_error_code +_gsskrb5cfx_max_wrap_length_cfx(krb5_crypto crypto, + int conf_req_flag, + size_t input_length, + OM_uint32 *output_length); + + +#endif /* GSSAPI_CFX_H_ */ diff --git a/source4/heimdal/lib/gssapi/krb5/compare_name.c b/source4/heimdal/lib/gssapi/krb5/compare_name.c new file mode 100644 index 0000000000..3e0f7edfee --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/compare_name.c @@ -0,0 +1,54 @@ +/* + * Copyright (c) 1997-2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: compare_name.c,v 1.7 2006/10/07 22:14:15 lha Exp $"); + +OM_uint32 _gsskrb5_compare_name + (OM_uint32 * minor_status, + const gss_name_t name1, + const gss_name_t name2, + int * name_equal + ) +{ + krb5_const_principal princ1 = (krb5_const_principal)name1; + krb5_const_principal princ2 = (krb5_const_principal)name2; + + GSSAPI_KRB5_INIT(); + + *name_equal = krb5_principal_compare (_gsskrb5_context, + princ1, princ2); + *minor_status = 0; + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/compat.c b/source4/heimdal/lib/gssapi/krb5/compat.c new file mode 100644 index 0000000000..0ea2fce0e8 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/compat.c @@ -0,0 +1,125 @@ +/* + * Copyright (c) 2003 - 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: compat.c,v 1.13 2006/10/07 22:14:17 lha Exp $"); + + +static krb5_error_code +check_compat(OM_uint32 *minor_status, krb5_const_principal name, + const char *option, krb5_boolean *compat, + krb5_boolean match_val) +{ + krb5_error_code ret = 0; + char **p, **q; + krb5_principal match; + + + p = krb5_config_get_strings(_gsskrb5_context, NULL, "gssapi", + option, NULL); + if(p == NULL) + return 0; + + match = NULL; + for(q = p; *q; q++) { + ret = krb5_parse_name(_gsskrb5_context, *q, &match); + if (ret) + break; + + if (krb5_principal_match(_gsskrb5_context, name, match)) { + *compat = match_val; + break; + } + + krb5_free_principal(_gsskrb5_context, match); + match = NULL; + } + if (match) + krb5_free_principal(_gsskrb5_context, match); + krb5_config_free_strings(p); + + if (ret) { + if (minor_status) + *minor_status = ret; + return GSS_S_FAILURE; + } + + return 0; +} + +/* + * ctx->ctx_id_mutex is assumed to be locked + */ + +OM_uint32 +_gss_DES3_get_mic_compat(OM_uint32 *minor_status, gsskrb5_ctx ctx) +{ + krb5_boolean use_compat = FALSE; + OM_uint32 ret; + + if ((ctx->more_flags & COMPAT_OLD_DES3_SELECTED) == 0) { + ret = check_compat(minor_status, ctx->target, + "broken_des3_mic", &use_compat, TRUE); + if (ret) + return ret; + ret = check_compat(minor_status, ctx->target, + "correct_des3_mic", &use_compat, FALSE); + if (ret) + return ret; + + if (use_compat) + ctx->more_flags |= COMPAT_OLD_DES3; + ctx->more_flags |= COMPAT_OLD_DES3_SELECTED; + } + return 0; +} + +#if 0 +OM_uint32 +gss_krb5_compat_des3_mic(OM_uint32 *minor_status, gss_ctx_id_t ctx, int on) +{ + *minor_status = 0; + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + if (on) { + ctx->more_flags |= COMPAT_OLD_DES3; + } else { + ctx->more_flags &= ~COMPAT_OLD_DES3; + } + ctx->more_flags |= COMPAT_OLD_DES3_SELECTED; + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + return 0; +} +#endif diff --git a/source4/heimdal/lib/gssapi/krb5/context_time.c b/source4/heimdal/lib/gssapi/krb5/context_time.c new file mode 100644 index 0000000000..4e9d9f5d1d --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/context_time.c @@ -0,0 +1,93 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: context_time.c,v 1.13 2006/10/07 22:14:19 lha Exp $"); + +OM_uint32 +_gsskrb5_lifetime_left(OM_uint32 *minor_status, + OM_uint32 lifetime, + OM_uint32 *lifetime_rec) +{ + krb5_timestamp timeret; + krb5_error_code kret; + + if (lifetime == 0) { + *lifetime_rec = GSS_C_INDEFINITE; + return GSS_S_COMPLETE; + } + + kret = krb5_timeofday(_gsskrb5_context, &timeret); + if (kret) { + *minor_status = kret; + _gsskrb5_set_error_string (); + return GSS_S_FAILURE; + } + + if (lifetime < timeret) + *lifetime_rec = 0; + else + *lifetime_rec = lifetime - timeret; + + return GSS_S_COMPLETE; +} + + +OM_uint32 _gsskrb5_context_time + (OM_uint32 * minor_status, + const gss_ctx_id_t context_handle, + OM_uint32 * time_rec + ) +{ + OM_uint32 lifetime; + OM_uint32 major_status; + const gsskrb5_ctx ctx = (const gsskrb5_ctx) context_handle; + + GSSAPI_KRB5_INIT (); + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + lifetime = ctx->lifetime; + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + major_status = _gsskrb5_lifetime_left(minor_status, lifetime, time_rec); + if (major_status != GSS_S_COMPLETE) + return major_status; + + *minor_status = 0; + + if (*time_rec == 0) + return GSS_S_CONTEXT_EXPIRED; + + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/copy_ccache.c b/source4/heimdal/lib/gssapi/krb5/copy_ccache.c new file mode 100644 index 0000000000..99aa2ccb43 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/copy_ccache.c @@ -0,0 +1,191 @@ +/* + * Copyright (c) 2000 - 2001, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: copy_ccache.c,v 1.15 2006/10/07 22:14:22 lha Exp $"); + +#if 0 +OM_uint32 +gss_krb5_copy_ccache(OM_uint32 *minor_status, + gss_cred_id_t cred, + krb5_ccache out) +{ + krb5_error_code kret; + + HEIMDAL_MUTEX_lock(&cred->cred_id_mutex); + + if (cred->ccache == NULL) { + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + + kret = krb5_cc_copy_cache(_gsskrb5_context, cred->ccache, out); + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + if (kret) { + *minor_status = kret; + _gsskrb5_set_error_string (); + return GSS_S_FAILURE; + } + *minor_status = 0; + return GSS_S_COMPLETE; +} +#endif + + +OM_uint32 +_gsskrb5_import_cred(OM_uint32 *minor_status, + krb5_ccache id, + krb5_principal keytab_principal, + krb5_keytab keytab, + gss_cred_id_t *cred) +{ + krb5_error_code kret; + gsskrb5_cred handle; + OM_uint32 ret; + + *cred = NULL; + + GSSAPI_KRB5_INIT (); + + handle = calloc(1, sizeof(*handle)); + if (handle == NULL) { + _gsskrb5_clear_status (); + *minor_status = ENOMEM; + return (GSS_S_FAILURE); + } + HEIMDAL_MUTEX_init(&handle->cred_id_mutex); + + handle->usage = 0; + + if (id) { + char *str; + + handle->usage |= GSS_C_INITIATE; + + kret = krb5_cc_get_principal(_gsskrb5_context, id, + &handle->principal); + if (kret) { + free(handle); + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + if (keytab_principal) { + krb5_boolean match; + + match = krb5_principal_compare(_gsskrb5_context, + handle->principal, + keytab_principal); + if (match == FALSE) { + krb5_free_principal(_gsskrb5_context, handle->principal); + free(handle); + _gsskrb5_clear_status (); + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + } + + ret = __gsskrb5_ccache_lifetime(minor_status, + id, + handle->principal, + &handle->lifetime); + if (ret != GSS_S_COMPLETE) { + krb5_free_principal(_gsskrb5_context, handle->principal); + free(handle); + return ret; + } + + + kret = krb5_cc_get_full_name(_gsskrb5_context, id, &str); + if (kret) + goto out; + + kret = krb5_cc_resolve(_gsskrb5_context, str, &handle->ccache); + free(str); + if (kret) + goto out; + } + + + if (keytab) { + char *str; + + handle->usage |= GSS_C_ACCEPT; + + if (keytab_principal && handle->principal == NULL) { + kret = krb5_copy_principal(_gsskrb5_context, + keytab_principal, + &handle->principal); + if (kret) + goto out; + } + + kret = krb5_kt_get_full_name(_gsskrb5_context, keytab, &str); + if (kret) + goto out; + + kret = krb5_kt_resolve(_gsskrb5_context, str, &handle->keytab); + free(str); + if (kret) + goto out; + } + + + if (id || keytab) { + ret = _gsskrb5_create_empty_oid_set(minor_status, &handle->mechanisms); + if (ret == GSS_S_COMPLETE) + ret = _gsskrb5_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM, + &handle->mechanisms); + if (ret != GSS_S_COMPLETE) { + kret = *minor_status; + goto out; + } + } + + *minor_status = 0; + *cred = (gss_cred_id_t)handle; + return GSS_S_COMPLETE; + +out: + _gsskrb5_set_error_string (); + if (handle->principal) + krb5_free_principal(_gsskrb5_context, handle->principal); + HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex); + free(handle); + *minor_status = kret; + return GSS_S_FAILURE; +} + diff --git a/source4/heimdal/lib/gssapi/krb5/create_emtpy_oid_set.c b/source4/heimdal/lib/gssapi/krb5/create_emtpy_oid_set.c new file mode 100644 index 0000000000..550995125a --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/create_emtpy_oid_set.c @@ -0,0 +1,52 @@ +/* + * Copyright (c) 1997 - 2001, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: create_emtpy_oid_set.c,v 1.7 2006/10/07 22:14:24 lha Exp $"); + +OM_uint32 _gsskrb5_create_empty_oid_set ( + OM_uint32 * minor_status, + gss_OID_set * oid_set + ) +{ + *oid_set = malloc(sizeof(**oid_set)); + if (*oid_set == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + (*oid_set)->count = 0; + (*oid_set)->elements = NULL; + *minor_status = 0; + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/decapsulate.c b/source4/heimdal/lib/gssapi/krb5/decapsulate.c new file mode 100644 index 0000000000..eadec1ef03 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/decapsulate.c @@ -0,0 +1,209 @@ +/* + * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: decapsulate.c,v 1.16 2006/10/07 22:14:26 lha Exp $"); + +/* + * return the length of the mechanism in token or -1 + * (which implies that the token was bad - GSS_S_DEFECTIVE_TOKEN + */ + +ssize_t +_gsskrb5_get_mech (const u_char *ptr, + size_t total_len, + const u_char **mech_ret) +{ + size_t len, len_len, mech_len, foo; + const u_char *p = ptr; + int e; + + if (total_len < 1) + return -1; + if (*p++ != 0x60) + return -1; + e = der_get_length (p, total_len - 1, &len, &len_len); + if (e || 1 + len_len + len != total_len) + return -1; + p += len_len; + if (*p++ != 0x06) + return -1; + e = der_get_length (p, total_len - 1 - len_len - 1, + &mech_len, &foo); + if (e) + return -1; + p += foo; + *mech_ret = p; + return mech_len; +} + +OM_uint32 +_gssapi_verify_mech_header(u_char **str, + size_t total_len, + gss_OID mech) +{ + const u_char *p; + ssize_t mech_len; + + mech_len = _gsskrb5_get_mech (*str, total_len, &p); + if (mech_len < 0) + return GSS_S_DEFECTIVE_TOKEN; + + if (mech_len != mech->length) + return GSS_S_BAD_MECH; + if (memcmp(p, + mech->elements, + mech->length) != 0) + return GSS_S_BAD_MECH; + p += mech_len; + *str = rk_UNCONST(p); + return GSS_S_COMPLETE; +} + +OM_uint32 +_gsskrb5_verify_header(u_char **str, + size_t total_len, + const void *type, + gss_OID oid) +{ + OM_uint32 ret; + size_t len; + u_char *p = *str; + + ret = _gssapi_verify_mech_header(str, total_len, oid); + if (ret) + return ret; + + len = total_len - (*str - p); + + if (len < 2) + return GSS_S_DEFECTIVE_TOKEN; + + if (memcmp (*str, type, 2) != 0) + return GSS_S_DEFECTIVE_TOKEN; + *str += 2; + + return 0; +} + +/* + * Remove the GSS-API wrapping from `in_token' giving `out_data. + * Does not copy data, so just free `in_token'. + */ + +OM_uint32 +_gssapi_decapsulate( + OM_uint32 *minor_status, + gss_buffer_t input_token_buffer, + krb5_data *out_data, + const gss_OID mech +) +{ + u_char *p; + OM_uint32 ret; + + p = input_token_buffer->value; + ret = _gssapi_verify_mech_header(&p, + input_token_buffer->length, + mech); + if (ret) { + *minor_status = 0; + return ret; + } + + out_data->length = input_token_buffer->length - + (p - (u_char *)input_token_buffer->value); + out_data->data = p; + return GSS_S_COMPLETE; +} + +/* + * Remove the GSS-API wrapping from `in_token' giving `out_data. + * Does not copy data, so just free `in_token'. + */ + +OM_uint32 +_gsskrb5_decapsulate(OM_uint32 *minor_status, + gss_buffer_t input_token_buffer, + krb5_data *out_data, + const void *type, + gss_OID oid) +{ + u_char *p; + OM_uint32 ret; + + p = input_token_buffer->value; + ret = _gsskrb5_verify_header(&p, + input_token_buffer->length, + type, + oid); + if (ret) { + *minor_status = 0; + return ret; + } + + out_data->length = input_token_buffer->length - + (p - (u_char *)input_token_buffer->value); + out_data->data = p; + return GSS_S_COMPLETE; +} + +/* + * Verify padding of a gss wrapped message and return its length. + */ + +OM_uint32 +_gssapi_verify_pad(gss_buffer_t wrapped_token, + size_t datalen, + size_t *padlen) +{ + u_char *pad; + size_t padlength; + int i; + + pad = (u_char *)wrapped_token->value + wrapped_token->length - 1; + padlength = *pad; + + if (padlength > datalen) + return GSS_S_BAD_MECH; + + for (i = padlength; i > 0 && *pad == padlength; i--, pad--) + ; + if (i != 0) + return GSS_S_BAD_MIC; + + *padlen = padlength; + + return 0; +} diff --git a/source4/heimdal/lib/gssapi/krb5/delete_sec_context.c b/source4/heimdal/lib/gssapi/krb5/delete_sec_context.c new file mode 100644 index 0000000000..e890d7d2c2 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/delete_sec_context.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: delete_sec_context.c,v 1.19 2006/10/07 22:14:28 lha Exp $"); + +OM_uint32 +_gsskrb5_delete_sec_context(OM_uint32 * minor_status, + gss_ctx_id_t * context_handle, + gss_buffer_t output_token) +{ + gsskrb5_ctx ctx; + + GSSAPI_KRB5_INIT (); + + *minor_status = 0; + + if (output_token) { + output_token->length = 0; + output_token->value = NULL; + } + + if (*context_handle == GSS_C_NO_CONTEXT) + return GSS_S_COMPLETE; + + ctx = (gsskrb5_ctx) *context_handle; + *context_handle = GSS_C_NO_CONTEXT; + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + + krb5_auth_con_free (_gsskrb5_context, ctx->auth_context); + if(ctx->source) + krb5_free_principal (_gsskrb5_context, ctx->source); + if(ctx->target) + krb5_free_principal (_gsskrb5_context, ctx->target); + if (ctx->ticket) + krb5_free_ticket (_gsskrb5_context, ctx->ticket); + if(ctx->order) + _gssapi_msg_order_destroy(&ctx->order); + if (ctx->service_keyblock) + krb5_free_keyblock (_gsskrb5_context, ctx->service_keyblock); + krb5_data_free(&ctx->fwd_data); + + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex); + memset(ctx, 0, sizeof(*ctx)); + free (ctx); + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/display_name.c b/source4/heimdal/lib/gssapi/krb5/display_name.c new file mode 100644 index 0000000000..8fce7d8572 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/display_name.c @@ -0,0 +1,72 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: display_name.c,v 1.12 2006/10/07 22:14:31 lha Exp $"); + +OM_uint32 _gsskrb5_display_name + (OM_uint32 * minor_status, + const gss_name_t input_name, + gss_buffer_t output_name_buffer, + gss_OID * output_name_type + ) +{ + krb5_const_principal name = (krb5_const_principal)input_name; + krb5_error_code kret; + char *buf; + size_t len; + + GSSAPI_KRB5_INIT (); + kret = krb5_unparse_name (_gsskrb5_context, name, &buf); + if (kret) { + *minor_status = kret; + _gsskrb5_set_error_string (); + return GSS_S_FAILURE; + } + len = strlen (buf); + output_name_buffer->length = len; + output_name_buffer->value = malloc(len + 1); + if (output_name_buffer->value == NULL) { + free (buf); + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + memcpy (output_name_buffer->value, buf, len); + ((char *)output_name_buffer->value)[len] = '\0'; + free (buf); + if (output_name_type) + *output_name_type = GSS_KRB5_NT_PRINCIPAL_NAME; + *minor_status = 0; + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/display_status.c b/source4/heimdal/lib/gssapi/krb5/display_status.c new file mode 100644 index 0000000000..11926ca557 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/display_status.c @@ -0,0 +1,230 @@ +/* + * Copyright (c) 1998 - 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: display_status.c,v 1.16 2006/10/07 22:14:33 lha Exp $"); + +static const char * +calling_error(OM_uint32 v) +{ + static const char *msgs[] = { + NULL, /* 0 */ + "A required input parameter could not be read.", /* */ + "A required output parameter could not be written.", /* */ + "A parameter was malformed" + }; + + v >>= GSS_C_CALLING_ERROR_OFFSET; + + if (v == 0) + return ""; + else if (v >= sizeof(msgs)/sizeof(*msgs)) + return "unknown calling error"; + else + return msgs[v]; +} + +static const char * +routine_error(OM_uint32 v) +{ + static const char *msgs[] = { + NULL, /* 0 */ + "An unsupported mechanism was requested", + "An invalid name was supplied", + "A supplied name was of an unsupported type", + "Incorrect channel bindings were supplied", + "An invalid status code was supplied", + "A token had an invalid MIC", + "No credentials were supplied, " + "or the credentials were unavailable or inaccessible.", + "No context has been established", + "A token was invalid", + "A credential was invalid", + "The referenced credentials have expired", + "The context has expired", + "Miscellaneous failure (see text)", + "The quality-of-protection requested could not be provide", + "The operation is forbidden by local security policy", + "The operation or option is not available", + "The requested credential element already exists", + "The provided name was not a mechanism name.", + }; + + v >>= GSS_C_ROUTINE_ERROR_OFFSET; + + if (v == 0) + return ""; + else if (v >= sizeof(msgs)/sizeof(*msgs)) + return "unknown routine error"; + else + return msgs[v]; +} + +static const char * +supplementary_error(OM_uint32 v) +{ + static const char *msgs[] = { + "normal completion", + "continuation call to routine required", + "duplicate per-message token detected", + "timed-out per-message token detected", + "reordered (early) per-message token detected", + "skipped predecessor token(s) detected" + }; + + v >>= GSS_C_SUPPLEMENTARY_OFFSET; + + if (v >= sizeof(msgs)/sizeof(*msgs)) + return "unknown routine error"; + else + return msgs[v]; +} + +void +_gsskrb5_clear_status (void) +{ + struct gssapi_thr_context *ctx = _gsskrb5_get_thread_context(1); + if (ctx == NULL) + return; + HEIMDAL_MUTEX_lock(&ctx->mutex); + if (ctx->error_string) + free(ctx->error_string); + ctx->error_string = NULL; + HEIMDAL_MUTEX_unlock(&ctx->mutex); +} + +void +_gsskrb5_set_status (const char *fmt, ...) +{ + struct gssapi_thr_context *ctx = _gsskrb5_get_thread_context(1); + va_list args; + + if (ctx == NULL) + return; + HEIMDAL_MUTEX_lock(&ctx->mutex); + va_start(args, fmt); + if (ctx->error_string) + free(ctx->error_string); + /* ignore failures, will use status code instead */ + vasprintf(&ctx->error_string, fmt, args); + va_end(args); + HEIMDAL_MUTEX_unlock(&ctx->mutex); +} + +void +_gsskrb5_set_error_string (void) +{ + char *e; + + e = krb5_get_error_string(_gsskrb5_context); + if (e) { + _gsskrb5_set_status("%s", e); + krb5_free_error_string(_gsskrb5_context, e); + } else + _gsskrb5_clear_status(); +} + +char * +_gsskrb5_get_error_string (void) +{ + struct gssapi_thr_context *ctx = _gsskrb5_get_thread_context(0); + char *ret; + + if (ctx == NULL) + return NULL; + HEIMDAL_MUTEX_lock(&ctx->mutex); + ret = ctx->error_string; + ctx->error_string = NULL; + HEIMDAL_MUTEX_unlock(&ctx->mutex); + return ret; +} + +OM_uint32 _gsskrb5_display_status + (OM_uint32 *minor_status, + OM_uint32 status_value, + int status_type, + const gss_OID mech_type, + OM_uint32 *message_context, + gss_buffer_t status_string) +{ + char *buf; + + GSSAPI_KRB5_INIT (); + + status_string->length = 0; + status_string->value = NULL; + + if (gss_oid_equal(mech_type, GSS_C_NO_OID) == 0 && + gss_oid_equal(mech_type, GSS_KRB5_MECHANISM) == 0) { + *minor_status = 0; + return GSS_C_GSS_CODE; + } + + if (status_type == GSS_C_GSS_CODE) { + if (GSS_SUPPLEMENTARY_INFO(status_value)) + asprintf(&buf, "%s", + supplementary_error(GSS_SUPPLEMENTARY_INFO(status_value))); + else + asprintf (&buf, "%s %s", + calling_error(GSS_CALLING_ERROR(status_value)), + routine_error(GSS_ROUTINE_ERROR(status_value))); + } else if (status_type == GSS_C_MECH_CODE) { + buf = _gsskrb5_get_error_string (); + if (buf == NULL) { + const char *tmp = krb5_get_err_text (_gsskrb5_context, + status_value); + if (tmp == NULL) + asprintf(&buf, "unknown mech error-code %u", + (unsigned)status_value); + else + buf = strdup(tmp); + } + } else { + *minor_status = EINVAL; + return GSS_S_BAD_STATUS; + } + + if (buf == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + *message_context = 0; + *minor_status = 0; + + status_string->length = strlen(buf); + status_string->value = buf; + + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/duplicate_name.c b/source4/heimdal/lib/gssapi/krb5/duplicate_name.c new file mode 100644 index 0000000000..475ae61efc --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/duplicate_name.c @@ -0,0 +1,59 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: duplicate_name.c,v 1.10 2006/10/07 22:14:35 lha Exp $"); + +OM_uint32 _gsskrb5_duplicate_name ( + OM_uint32 * minor_status, + const gss_name_t src_name, + gss_name_t * dest_name + ) +{ + krb5_const_principal src = (krb5_const_principal)src_name; + krb5_principal *dest = (krb5_principal *)dest_name; + krb5_error_code kret; + + GSSAPI_KRB5_INIT (); + + kret = krb5_copy_principal (_gsskrb5_context, src, dest); + if (kret) { + *minor_status = kret; + _gsskrb5_set_error_string (); + return GSS_S_FAILURE; + } else { + *minor_status = 0; + return GSS_S_COMPLETE; + } +} diff --git a/source4/heimdal/lib/gssapi/krb5/encapsulate.c b/source4/heimdal/lib/gssapi/krb5/encapsulate.c new file mode 100644 index 0000000000..a015a95103 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/encapsulate.c @@ -0,0 +1,155 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: encapsulate.c,v 1.12 2006/10/14 10:02:56 lha Exp $"); + +void +_gssapi_encap_length (size_t data_len, + size_t *len, + size_t *total_len, + const gss_OID mech) +{ + size_t len_len; + + *len = 1 + 1 + mech->length + data_len; + + len_len = der_length_len(*len); + + *total_len = 1 + len_len + *len; +} + +void +_gsskrb5_encap_length (size_t data_len, + size_t *len, + size_t *total_len, + const gss_OID mech) +{ + _gssapi_encap_length(data_len + 2, len, total_len, mech); +} + +void * +_gsskrb5_make_header (void *ptr, + size_t len, + const void *type, + const gss_OID mech) +{ + u_char *p = ptr; + p = _gssapi_make_mech_header(p, len, mech); + memcpy (p, type, 2); + p += 2; + return p; +} + +void * +_gssapi_make_mech_header(void *ptr, + size_t len, + const gss_OID mech) +{ + u_char *p = ptr; + int e; + size_t len_len, foo; + + *p++ = 0x60; + len_len = der_length_len(len); + e = der_put_length (p + len_len - 1, len_len, len, &foo); + if(e || foo != len_len) + abort (); + p += len_len; + *p++ = 0x06; + *p++ = mech->length; + memcpy (p, mech->elements, mech->length); + p += mech->length; + return p; +} + +/* + * Give it a krb5_data and it will encapsulate with extra GSS-API wrappings. + */ + +OM_uint32 +_gssapi_encapsulate( + OM_uint32 *minor_status, + const krb5_data *in_data, + gss_buffer_t output_token, + const gss_OID mech +) +{ + size_t len, outer_len; + void *p; + + _gssapi_encap_length (in_data->length, &len, &outer_len, mech); + + output_token->length = outer_len; + output_token->value = malloc (outer_len); + if (output_token->value == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + p = _gssapi_make_mech_header (output_token->value, len, mech); + memcpy (p, in_data->data, in_data->length); + return GSS_S_COMPLETE; +} + +/* + * Give it a krb5_data and it will encapsulate with extra GSS-API krb5 + * wrappings. + */ + +OM_uint32 +_gsskrb5_encapsulate( + OM_uint32 *minor_status, + const krb5_data *in_data, + gss_buffer_t output_token, + const void *type, + const gss_OID mech +) +{ + size_t len, outer_len; + u_char *p; + + _gsskrb5_encap_length (in_data->length, &len, &outer_len, mech); + + output_token->length = outer_len; + output_token->value = malloc (outer_len); + if (output_token->value == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + p = _gsskrb5_make_header (output_token->value, len, type, mech); + memcpy (p, in_data->data, in_data->length); + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/export_name.c b/source4/heimdal/lib/gssapi/krb5/export_name.c new file mode 100644 index 0000000000..d00c458898 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/export_name.c @@ -0,0 +1,93 @@ +/* + * Copyright (c) 1997, 1999, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: export_name.c,v 1.8 2006/10/07 22:14:40 lha Exp $"); + +OM_uint32 _gsskrb5_export_name + (OM_uint32 * minor_status, + const gss_name_t input_name, + gss_buffer_t exported_name + ) +{ + krb5_const_principal princ = (krb5_const_principal)input_name; + krb5_error_code kret; + char *buf, *name; + size_t len; + + GSSAPI_KRB5_INIT (); + kret = krb5_unparse_name (_gsskrb5_context, princ, &name); + if (kret) { + *minor_status = kret; + _gsskrb5_set_error_string (); + return GSS_S_FAILURE; + } + len = strlen (name); + + exported_name->length = 10 + len + GSS_KRB5_MECHANISM->length; + exported_name->value = malloc(exported_name->length); + if (exported_name->value == NULL) { + free (name); + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + /* TOK, MECH_OID_LEN, DER(MECH_OID), NAME_LEN, NAME */ + + buf = exported_name->value; + memcpy(buf, "\x04\x01", 2); + buf += 2; + buf[0] = ((GSS_KRB5_MECHANISM->length + 2) >> 8) & 0xff; + buf[1] = (GSS_KRB5_MECHANISM->length + 2) & 0xff; + buf+= 2; + buf[0] = 0x06; + buf[1] = (GSS_KRB5_MECHANISM->length) & 0xFF; + buf+= 2; + + memcpy(buf, GSS_KRB5_MECHANISM->elements, GSS_KRB5_MECHANISM->length); + buf += GSS_KRB5_MECHANISM->length; + + buf[0] = (len >> 24) & 0xff; + buf[1] = (len >> 16) & 0xff; + buf[2] = (len >> 8) & 0xff; + buf[3] = (len) & 0xff; + buf += 4; + + memcpy (buf, name, len); + + free (name); + + *minor_status = 0; + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/export_sec_context.c b/source4/heimdal/lib/gssapi/krb5/export_sec_context.c new file mode 100644 index 0000000000..aff03a0b67 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/export_sec_context.c @@ -0,0 +1,239 @@ +/* + * Copyright (c) 1999 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: export_sec_context.c,v 1.11 2006/10/07 22:14:42 lha Exp $"); + +OM_uint32 +_gsskrb5_export_sec_context ( + OM_uint32 * minor_status, + gss_ctx_id_t * context_handle, + gss_buffer_t interprocess_token + ) +{ + const gsskrb5_ctx ctx = (const gsskrb5_ctx) *context_handle; + krb5_storage *sp; + krb5_auth_context ac; + OM_uint32 ret = GSS_S_COMPLETE; + krb5_data data; + gss_buffer_desc buffer; + int flags; + OM_uint32 minor; + krb5_error_code kret; + + GSSAPI_KRB5_INIT (); + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + + if (!(ctx->flags & GSS_C_TRANS_FLAG)) { + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + *minor_status = 0; + return GSS_S_UNAVAILABLE; + } + + sp = krb5_storage_emem (); + if (sp == NULL) { + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + ac = ctx->auth_context; + + /* flagging included fields */ + + flags = 0; + if (ac->local_address) + flags |= SC_LOCAL_ADDRESS; + if (ac->remote_address) + flags |= SC_REMOTE_ADDRESS; + if (ac->keyblock) + flags |= SC_KEYBLOCK; + if (ac->local_subkey) + flags |= SC_LOCAL_SUBKEY; + if (ac->remote_subkey) + flags |= SC_REMOTE_SUBKEY; + + kret = krb5_store_int32 (sp, flags); + if (kret) { + *minor_status = kret; + goto failure; + } + + /* marshall auth context */ + + kret = krb5_store_int32 (sp, ac->flags); + if (kret) { + *minor_status = kret; + goto failure; + } + if (ac->local_address) { + kret = krb5_store_address (sp, *ac->local_address); + if (kret) { + *minor_status = kret; + goto failure; + } + } + if (ac->remote_address) { + kret = krb5_store_address (sp, *ac->remote_address); + if (kret) { + *minor_status = kret; + goto failure; + } + } + kret = krb5_store_int16 (sp, ac->local_port); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int16 (sp, ac->remote_port); + if (kret) { + *minor_status = kret; + goto failure; + } + if (ac->keyblock) { + kret = krb5_store_keyblock (sp, *ac->keyblock); + if (kret) { + *minor_status = kret; + goto failure; + } + } + if (ac->local_subkey) { + kret = krb5_store_keyblock (sp, *ac->local_subkey); + if (kret) { + *minor_status = kret; + goto failure; + } + } + if (ac->remote_subkey) { + kret = krb5_store_keyblock (sp, *ac->remote_subkey); + if (kret) { + *minor_status = kret; + goto failure; + } + } + kret = krb5_store_int32 (sp, ac->local_seqnumber); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int32 (sp, ac->remote_seqnumber); + if (kret) { + *minor_status = kret; + goto failure; + } + + kret = krb5_store_int32 (sp, ac->keytype); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int32 (sp, ac->cksumtype); + if (kret) { + *minor_status = kret; + goto failure; + } + + /* names */ + + ret = _gsskrb5_export_name (minor_status, + (gss_name_t)ctx->source, &buffer); + if (ret) + goto failure; + data.data = buffer.value; + data.length = buffer.length; + kret = krb5_store_data (sp, data); + _gsskrb5_release_buffer (&minor, &buffer); + if (kret) { + *minor_status = kret; + goto failure; + } + + ret = _gsskrb5_export_name (minor_status, + (gss_name_t)ctx->target, &buffer); + if (ret) + goto failure; + data.data = buffer.value; + data.length = buffer.length; + + ret = GSS_S_FAILURE; + + kret = krb5_store_data (sp, data); + _gsskrb5_release_buffer (&minor, &buffer); + if (kret) { + *minor_status = kret; + goto failure; + } + + kret = krb5_store_int32 (sp, ctx->flags); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int32 (sp, ctx->more_flags); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = krb5_store_int32 (sp, ctx->lifetime); + if (kret) { + *minor_status = kret; + goto failure; + } + kret = _gssapi_msg_order_export(sp, ctx->order); + if (kret ) { + *minor_status = kret; + goto failure; + } + + kret = krb5_storage_to_data (sp, &data); + krb5_storage_free (sp); + if (kret) { + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + *minor_status = kret; + return GSS_S_FAILURE; + } + interprocess_token->length = data.length; + interprocess_token->value = data.data; + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + ret = _gsskrb5_delete_sec_context (minor_status, context_handle, + GSS_C_NO_BUFFER); + if (ret != GSS_S_COMPLETE) + _gsskrb5_release_buffer (NULL, interprocess_token); + *minor_status = 0; + return ret; + failure: + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + krb5_storage_free (sp); + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/external.c b/source4/heimdal/lib/gssapi/krb5/external.c new file mode 100644 index 0000000000..7419bc2fe8 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/external.c @@ -0,0 +1,408 @@ +/* + * Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" +#include <gssapi_mech.h> + +RCSID("$Id: external.c,v 1.18 2006/10/20 21:50:24 lha Exp $"); + +/* + * The implementation must reserve static storage for a + * gss_OID_desc object containing the value + * {10, (void *)"\x2a\x86\x48\x86\xf7\x12" + * "\x01\x02\x01\x01"}, + * corresponding to an object-identifier value of + * {iso(1) member-body(2) United States(840) mit(113554) + * infosys(1) gssapi(2) generic(1) user_name(1)}. The constant + * GSS_C_NT_USER_NAME should be initialized to point + * to that gss_OID_desc. + */ + +static gss_OID_desc gss_c_nt_user_name_oid_desc = +{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x01")}; + +gss_OID GSS_C_NT_USER_NAME = &gss_c_nt_user_name_oid_desc; + +/* + * The implementation must reserve static storage for a + * gss_OID_desc object containing the value + * {10, (void *)"\x2a\x86\x48\x86\xf7\x12" + * "\x01\x02\x01\x02"}, + * corresponding to an object-identifier value of + * {iso(1) member-body(2) United States(840) mit(113554) + * infosys(1) gssapi(2) generic(1) machine_uid_name(2)}. + * The constant GSS_C_NT_MACHINE_UID_NAME should be + * initialized to point to that gss_OID_desc. + */ + +static gss_OID_desc gss_c_nt_machine_uid_name_oid_desc = +{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x02")}; + +gss_OID GSS_C_NT_MACHINE_UID_NAME = &gss_c_nt_machine_uid_name_oid_desc; + +/* + * The implementation must reserve static storage for a + * gss_OID_desc object containing the value + * {10, (void *)"\x2a\x86\x48\x86\xf7\x12" + * "\x01\x02\x01\x03"}, + * corresponding to an object-identifier value of + * {iso(1) member-body(2) United States(840) mit(113554) + * infosys(1) gssapi(2) generic(1) string_uid_name(3)}. + * The constant GSS_C_NT_STRING_UID_NAME should be + * initialized to point to that gss_OID_desc. + */ + +static gss_OID_desc gss_c_nt_string_uid_name_oid_desc = +{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x03")}; + +gss_OID GSS_C_NT_STRING_UID_NAME = &gss_c_nt_string_uid_name_oid_desc; + +/* + * The implementation must reserve static storage for a + * gss_OID_desc object containing the value + * {6, (void *)"\x2b\x06\x01\x05\x06\x02"}, + * corresponding to an object-identifier value of + * {iso(1) org(3) dod(6) internet(1) security(5) + * nametypes(6) gss-host-based-services(2)). The constant + * GSS_C_NT_HOSTBASED_SERVICE_X should be initialized to point + * to that gss_OID_desc. This is a deprecated OID value, and + * implementations wishing to support hostbased-service names + * should instead use the GSS_C_NT_HOSTBASED_SERVICE OID, + * defined below, to identify such names; + * GSS_C_NT_HOSTBASED_SERVICE_X should be accepted a synonym + * for GSS_C_NT_HOSTBASED_SERVICE when presented as an input + * parameter, but should not be emitted by GSS-API + * implementations + */ + +static gss_OID_desc gss_c_nt_hostbased_service_x_oid_desc = +{6, rk_UNCONST("\x2b\x06\x01\x05\x06\x02")}; + +gss_OID GSS_C_NT_HOSTBASED_SERVICE_X = &gss_c_nt_hostbased_service_x_oid_desc; + +/* + * The implementation must reserve static storage for a + * gss_OID_desc object containing the value + * {10, (void *)"\x2a\x86\x48\x86\xf7\x12" + * "\x01\x02\x01\x04"}, corresponding to an + * object-identifier value of {iso(1) member-body(2) + * Unites States(840) mit(113554) infosys(1) gssapi(2) + * generic(1) service_name(4)}. The constant + * GSS_C_NT_HOSTBASED_SERVICE should be initialized + * to point to that gss_OID_desc. + */ +static gss_OID_desc gss_c_nt_hostbased_service_oid_desc = +{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x04")}; + +gss_OID GSS_C_NT_HOSTBASED_SERVICE = &gss_c_nt_hostbased_service_oid_desc; + +/* + * The implementation must reserve static storage for a + * gss_OID_desc object containing the value + * {6, (void *)"\x2b\x06\01\x05\x06\x03"}, + * corresponding to an object identifier value of + * {1(iso), 3(org), 6(dod), 1(internet), 5(security), + * 6(nametypes), 3(gss-anonymous-name)}. The constant + * and GSS_C_NT_ANONYMOUS should be initialized to point + * to that gss_OID_desc. + */ + +static gss_OID_desc gss_c_nt_anonymous_oid_desc = +{6, rk_UNCONST("\x2b\x06\01\x05\x06\x03")}; + +gss_OID GSS_C_NT_ANONYMOUS = &gss_c_nt_anonymous_oid_desc; + +/* + * The implementation must reserve static storage for a + * gss_OID_desc object containing the value + * {6, (void *)"\x2b\x06\x01\x05\x06\x04"}, + * corresponding to an object-identifier value of + * {1(iso), 3(org), 6(dod), 1(internet), 5(security), + * 6(nametypes), 4(gss-api-exported-name)}. The constant + * GSS_C_NT_EXPORT_NAME should be initialized to point + * to that gss_OID_desc. + */ + +static gss_OID_desc gss_c_nt_export_name_oid_desc = +{6, rk_UNCONST("\x2b\x06\x01\x05\x06\x04") }; + +gss_OID GSS_C_NT_EXPORT_NAME = &gss_c_nt_export_name_oid_desc; + +/* + * This name form shall be represented by the Object Identifier {iso(1) + * member-body(2) United States(840) mit(113554) infosys(1) gssapi(2) + * krb5(2) krb5_name(1)}. The recommended symbolic name for this type + * is "GSS_KRB5_NT_PRINCIPAL_NAME". + */ + +static gss_OID_desc gss_krb5_nt_principal_name_oid_desc = +{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x01") }; + +gss_OID GSS_KRB5_NT_PRINCIPAL_NAME = &gss_krb5_nt_principal_name_oid_desc; + +/* + * This name form shall be represented by the Object Identifier {iso(1) + * member-body(2) United States(840) mit(113554) infosys(1) gssapi(2) + * generic(1) user_name(1)}. The recommended symbolic name for this + * type is "GSS_KRB5_NT_USER_NAME". + */ + +gss_OID GSS_KRB5_NT_USER_NAME = &gss_c_nt_user_name_oid_desc; + +/* + * This name form shall be represented by the Object Identifier {iso(1) + * member-body(2) United States(840) mit(113554) infosys(1) gssapi(2) + * generic(1) machine_uid_name(2)}. The recommended symbolic name for + * this type is "GSS_KRB5_NT_MACHINE_UID_NAME". + */ + +gss_OID GSS_KRB5_NT_MACHINE_UID_NAME = &gss_c_nt_machine_uid_name_oid_desc; + +/* + * This name form shall be represented by the Object Identifier {iso(1) + * member-body(2) United States(840) mit(113554) infosys(1) gssapi(2) + * generic(1) string_uid_name(3)}. The recommended symbolic name for + * this type is "GSS_KRB5_NT_STRING_UID_NAME". + */ + +gss_OID GSS_KRB5_NT_STRING_UID_NAME = &gss_c_nt_string_uid_name_oid_desc; + +/* + * To support ongoing experimentation, testing, and evolution of the + * specification, the Kerberos V5 GSS-API mechanism as defined in this + * and any successor memos will be identified with the following Object + * Identifier, as defined in RFC-1510, until the specification is + * advanced to the level of Proposed Standard RFC: + * + * {iso(1), org(3), dod(5), internet(1), security(5), kerberosv5(2)} + * + * Upon advancement to the level of Proposed Standard RFC, the Kerberos + * V5 GSS-API mechanism will be identified by an Object Identifier + * having the value: + * + * {iso(1) member-body(2) United States(840) mit(113554) infosys(1) + * gssapi(2) krb5(2)} + */ + +#if 0 /* This is the old OID */ + +static gss_OID_desc gss_krb5_mechanism_oid_desc = +{5, rk_UNCONST("\x2b\x05\x01\x05\x02")}; + +#endif + +static gss_OID_desc gss_krb5_mechanism_oid_desc = +{9, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12\x01\x02\x02") }; + +gss_OID GSS_KRB5_MECHANISM = &gss_krb5_mechanism_oid_desc; + +/* + * draft-ietf-cat-iakerb-09, IAKERB: + * The mechanism ID for IAKERB proxy GSS-API Kerberos, in accordance + * with the mechanism proposed by SPNEGO [7] for negotiating protocol + * variations, is: {iso(1) org(3) dod(6) internet(1) security(5) + * mechanisms(5) iakerb(10) iakerbProxyProtocol(1)}. The proposed + * mechanism ID for IAKERB minimum messages GSS-API Kerberos, in + * accordance with the mechanism proposed by SPNEGO for negotiating + * protocol variations, is: {iso(1) org(3) dod(6) internet(1) + * security(5) mechanisms(5) iakerb(10) + * iakerbMinimumMessagesProtocol(2)}. + */ + +static gss_OID_desc gss_iakerb_proxy_mechanism_oid_desc = +{7, rk_UNCONST("\x2b\x06\x01\x05\x05\x0a\x01")}; + +gss_OID GSS_IAKERB_PROXY_MECHANISM = &gss_iakerb_proxy_mechanism_oid_desc; + +static gss_OID_desc gss_iakerb_min_msg_mechanism_oid_desc = +{7, rk_UNCONST("\x2b\x06\x01\x05\x05\x0a\x02") }; + +gss_OID GSS_IAKERB_MIN_MSG_MECHANISM = &gss_iakerb_min_msg_mechanism_oid_desc; + +/* + * + */ + +static gss_OID_desc gss_c_peer_has_updated_spnego_oid_desc = +{9, (void *)"\x2b\x06\x01\x04\x01\xa9\x4a\x13\x05"}; + +gss_OID GSS_C_PEER_HAS_UPDATED_SPNEGO = &gss_c_peer_has_updated_spnego_oid_desc; + +/* + * 1.2.752.43.13 Heimdal GSS-API Extentions + */ + +/* 1.2.752.43.13.1 */ +static gss_OID_desc gss_krb5_copy_ccache_x_oid_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x01")}; + +gss_OID GSS_KRB5_COPY_CCACHE_X = &gss_krb5_copy_ccache_x_oid_desc; + +/* 1.2.752.43.13.2 */ +static gss_OID_desc gss_krb5_get_tkt_flags_x_oid_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x02")}; + +gss_OID GSS_KRB5_GET_TKT_FLAGS_X = &gss_krb5_get_tkt_flags_x_oid_desc; + +/* 1.2.752.43.13.3 */ +static gss_OID_desc gss_krb5_extract_authz_data_from_sec_context_x_oid_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x03")}; + +gss_OID GSS_KRB5_EXTRACT_AUTHZ_DATA_FROM_SEC_CONTEXT_X = &gss_krb5_extract_authz_data_from_sec_context_x_oid_desc; + +/* 1.2.752.43.13.4 */ +static gss_OID_desc gss_krb5_compat_des3_mic_x_oid_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x04")}; + +gss_OID GSS_KRB5_COMPAT_DES3_MIC_X = &gss_krb5_compat_des3_mic_x_oid_desc; + +/* 1.2.752.43.13.5 */ +static gss_OID_desc gss_krb5_register_acceptor_identity_x_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x05")}; + +gss_OID GSS_KRB5_REGISTER_ACCEPTOR_IDENTITY_X = &gss_krb5_register_acceptor_identity_x_desc; + +/* 1.2.752.43.13.6 */ +static gss_OID_desc gss_krb5_export_lucid_context_x_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x06")}; + +gss_OID GSS_KRB5_EXPORT_LUCID_CONTEXT_X = &gss_krb5_export_lucid_context_x_desc; + +/* 1.2.752.43.13.6.1 */ +static gss_OID_desc gss_krb5_export_lucid_context_v1_x_desc = +{7, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x06\x01")}; + +gss_OID GSS_KRB5_EXPORT_LUCID_CONTEXT_V1_X = &gss_krb5_export_lucid_context_v1_x_desc; + +/* 1.2.752.43.13.7 */ +static gss_OID_desc gss_krb5_set_dns_canonicalize_x_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x07")}; + +gss_OID GSS_KRB5_SET_DNS_CANONICALIZE_X = &gss_krb5_set_dns_canonicalize_x_desc; + +/* 1.2.752.43.13.8 */ +static gss_OID_desc gss_krb5_get_subkey_x_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x08")}; + +gss_OID GSS_KRB5_GET_SUBKEY_X = &gss_krb5_get_subkey_x_desc; + +/* 1.2.752.43.13.9 */ +static gss_OID_desc gss_krb5_get_initiator_subkey_x_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x09")}; + +gss_OID GSS_KRB5_GET_INITIATOR_SUBKEY_X = &gss_krb5_get_initiator_subkey_x_desc; + +/* 1.2.752.43.13.10 */ +static gss_OID_desc gss_krb5_get_acceptor_subkey_x_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x0a")}; + +gss_OID GSS_KRB5_GET_ACCEPTOR_SUBKEY_X = &gss_krb5_get_acceptor_subkey_x_desc; + +/* 1.2.752.43.13.11 */ +static gss_OID_desc gss_krb5_send_to_kdc_x_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x0b")}; + +gss_OID GSS_KRB5_SEND_TO_KDC_X = &gss_krb5_send_to_kdc_x_desc; + +/* 1.2.752.43.13.12 */ +static gss_OID_desc gss_krb5_get_authtime_x_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x0c")}; + +gss_OID GSS_KRB5_GET_AUTHTIME_X = &gss_krb5_get_authtime_x_desc; + +/* 1.2.752.43.13.14 */ +static gss_OID_desc gss_krb5_get_service_keyblock_x_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x0d")}; + +gss_OID GSS_KRB5_GET_SERVICE_KEYBLOCK_X = &gss_krb5_get_service_keyblock_x_desc; + +/* 1.2.752.43.14.1 */ +static gss_OID_desc gss_sasl_digest_md5_mechanism_desc = +{6, rk_UNCONST("\x2a\x85\x70\x2b\x0e\x01") }; + +gss_OID GSS_SASL_DIGEST_MD5_MECHANISM = &gss_sasl_digest_md5_mechanism_desc; + +/* + * Context for krb5 calls. + */ + +krb5_context _gsskrb5_context; + +/* + * + */ + +static gssapi_mech_interface_desc krb5_mech = { + GMI_VERSION, + "kerberos 5", + {9, "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02" }, + _gsskrb5_acquire_cred, + _gsskrb5_release_cred, + _gsskrb5_init_sec_context, + _gsskrb5_accept_sec_context, + _gsskrb5_process_context_token, + _gsskrb5_delete_sec_context, + _gsskrb5_context_time, + _gsskrb5_get_mic, + _gsskrb5_verify_mic, + _gsskrb5_wrap, + _gsskrb5_unwrap, + _gsskrb5_display_status, + _gsskrb5_indicate_mechs, + _gsskrb5_compare_name, + _gsskrb5_display_name, + _gsskrb5_import_name, + _gsskrb5_export_name, + _gsskrb5_release_name, + _gsskrb5_inquire_cred, + _gsskrb5_inquire_context, + _gsskrb5_wrap_size_limit, + _gsskrb5_add_cred, + _gsskrb5_inquire_cred_by_mech, + _gsskrb5_export_sec_context, + _gsskrb5_import_sec_context, + _gsskrb5_inquire_names_for_mech, + _gsskrb5_inquire_mechs_for_name, + _gsskrb5_canonicalize_name, + _gsskrb5_duplicate_name, + _gsskrb5_inquire_sec_context_by_oid, + _gsskrb5_inquire_cred_by_oid, + _gsskrb5_set_sec_context_option, + _gsskrb5_set_cred_option +}; + +gssapi_mech_interface +__gss_krb5_initialize(void) +{ + return &krb5_mech; +} diff --git a/source4/heimdal/lib/gssapi/krb5/get_mic.c b/source4/heimdal/lib/gssapi/krb5/get_mic.c new file mode 100644 index 0000000000..5a078d634d --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/get_mic.c @@ -0,0 +1,317 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: get_mic.c,v 1.34 2006/10/18 15:59:23 lha Exp $"); + +static OM_uint32 +mic_des + (OM_uint32 * minor_status, + const gsskrb5_ctx ctx, + gss_qop_t qop_req, + const gss_buffer_t message_buffer, + gss_buffer_t message_token, + krb5_keyblock *key + ) +{ + u_char *p; + MD5_CTX md5; + u_char hash[16]; + DES_key_schedule schedule; + DES_cblock deskey; + DES_cblock zero; + int32_t seq_number; + size_t len, total_len; + + _gsskrb5_encap_length (22, &len, &total_len, GSS_KRB5_MECHANISM); + + message_token->length = total_len; + message_token->value = malloc (total_len); + if (message_token->value == NULL) { + message_token->length = 0; + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + p = _gsskrb5_make_header(message_token->value, + len, + "\x01\x01", /* TOK_ID */ + GSS_KRB5_MECHANISM); + + memcpy (p, "\x00\x00", 2); /* SGN_ALG = DES MAC MD5 */ + p += 2; + + memcpy (p, "\xff\xff\xff\xff", 4); /* Filler */ + p += 4; + + /* Fill in later (SND-SEQ) */ + memset (p, 0, 16); + p += 16; + + /* checksum */ + MD5_Init (&md5); + MD5_Update (&md5, p - 24, 8); + MD5_Update (&md5, message_buffer->value, message_buffer->length); + MD5_Final (hash, &md5); + + memset (&zero, 0, sizeof(zero)); + memcpy (&deskey, key->keyvalue.data, sizeof(deskey)); + DES_set_key (&deskey, &schedule); + DES_cbc_cksum ((void *)hash, (void *)hash, sizeof(hash), + &schedule, &zero); + memcpy (p - 8, hash, 8); /* SGN_CKSUM */ + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + /* sequence number */ + krb5_auth_con_getlocalseqnumber (_gsskrb5_context, + ctx->auth_context, + &seq_number); + + p -= 16; /* SND_SEQ */ + p[0] = (seq_number >> 0) & 0xFF; + p[1] = (seq_number >> 8) & 0xFF; + p[2] = (seq_number >> 16) & 0xFF; + p[3] = (seq_number >> 24) & 0xFF; + memset (p + 4, + (ctx->more_flags & LOCAL) ? 0 : 0xFF, + 4); + + DES_set_key (&deskey, &schedule); + DES_cbc_encrypt ((void *)p, (void *)p, 8, + &schedule, (DES_cblock *)(p + 8), DES_ENCRYPT); + + krb5_auth_con_setlocalseqnumber (_gsskrb5_context, + ctx->auth_context, + ++seq_number); + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + memset (deskey, 0, sizeof(deskey)); + memset (&schedule, 0, sizeof(schedule)); + + *minor_status = 0; + return GSS_S_COMPLETE; +} + +static OM_uint32 +mic_des3 + (OM_uint32 * minor_status, + const gsskrb5_ctx ctx, + gss_qop_t qop_req, + const gss_buffer_t message_buffer, + gss_buffer_t message_token, + krb5_keyblock *key + ) +{ + u_char *p; + Checksum cksum; + u_char seq[8]; + + int32_t seq_number; + size_t len, total_len; + + krb5_crypto crypto; + krb5_error_code kret; + krb5_data encdata; + char *tmp; + char ivec[8]; + + _gsskrb5_encap_length (36, &len, &total_len, GSS_KRB5_MECHANISM); + + message_token->length = total_len; + message_token->value = malloc (total_len); + if (message_token->value == NULL) { + message_token->length = 0; + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + p = _gsskrb5_make_header(message_token->value, + len, + "\x01\x01", /* TOK-ID */ + GSS_KRB5_MECHANISM); + + memcpy (p, "\x04\x00", 2); /* SGN_ALG = HMAC SHA1 DES3-KD */ + p += 2; + + memcpy (p, "\xff\xff\xff\xff", 4); /* filler */ + p += 4; + + /* this should be done in parts */ + + tmp = malloc (message_buffer->length + 8); + if (tmp == NULL) { + free (message_token->value); + message_token->value = NULL; + message_token->length = 0; + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + memcpy (tmp, p - 8, 8); + memcpy (tmp + 8, message_buffer->value, message_buffer->length); + + kret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (kret) { + free (message_token->value); + message_token->value = NULL; + message_token->length = 0; + free (tmp); + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + kret = krb5_create_checksum (_gsskrb5_context, + crypto, + KRB5_KU_USAGE_SIGN, + 0, + tmp, + message_buffer->length + 8, + &cksum); + free (tmp); + krb5_crypto_destroy (_gsskrb5_context, crypto); + if (kret) { + free (message_token->value); + message_token->value = NULL; + message_token->length = 0; + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + memcpy (p + 8, cksum.checksum.data, cksum.checksum.length); + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + /* sequence number */ + krb5_auth_con_getlocalseqnumber (_gsskrb5_context, + ctx->auth_context, + &seq_number); + + seq[0] = (seq_number >> 0) & 0xFF; + seq[1] = (seq_number >> 8) & 0xFF; + seq[2] = (seq_number >> 16) & 0xFF; + seq[3] = (seq_number >> 24) & 0xFF; + memset (seq + 4, + (ctx->more_flags & LOCAL) ? 0 : 0xFF, + 4); + + kret = krb5_crypto_init(_gsskrb5_context, key, + ETYPE_DES3_CBC_NONE, &crypto); + if (kret) { + free (message_token->value); + message_token->value = NULL; + message_token->length = 0; + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + if (ctx->more_flags & COMPAT_OLD_DES3) + memset(ivec, 0, 8); + else + memcpy(ivec, p + 8, 8); + + kret = krb5_encrypt_ivec (_gsskrb5_context, + crypto, + KRB5_KU_USAGE_SEQ, + seq, 8, &encdata, ivec); + krb5_crypto_destroy (_gsskrb5_context, crypto); + if (kret) { + free (message_token->value); + message_token->value = NULL; + message_token->length = 0; + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + assert (encdata.length == 8); + + memcpy (p, encdata.data, encdata.length); + krb5_data_free (&encdata); + + krb5_auth_con_setlocalseqnumber (_gsskrb5_context, + ctx->auth_context, + ++seq_number); + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + free_Checksum (&cksum); + *minor_status = 0; + return GSS_S_COMPLETE; +} + +OM_uint32 _gsskrb5_get_mic + (OM_uint32 * minor_status, + const gss_ctx_id_t context_handle, + gss_qop_t qop_req, + const gss_buffer_t message_buffer, + gss_buffer_t message_token + ) +{ + const gsskrb5_ctx ctx = (const gsskrb5_ctx) context_handle; + krb5_keyblock *key; + OM_uint32 ret; + krb5_keytype keytype; + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + ret = _gsskrb5i_get_token_key(ctx, &key); + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + krb5_enctype_to_keytype (_gsskrb5_context, key->keytype, &keytype); + + switch (keytype) { + case KEYTYPE_DES : + ret = mic_des (minor_status, ctx, qop_req, + message_buffer, message_token, key); + break; + case KEYTYPE_DES3 : + ret = mic_des3 (minor_status, ctx, qop_req, + message_buffer, message_token, key); + break; + case KEYTYPE_ARCFOUR: + case KEYTYPE_ARCFOUR_56: + ret = _gssapi_get_mic_arcfour (minor_status, ctx, qop_req, + message_buffer, message_token, key); + break; + default : + ret = _gssapi_mic_cfx (minor_status, ctx, qop_req, + message_buffer, message_token, key); + break; + } + krb5_free_keyblock (_gsskrb5_context, key); + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/gsskrb5-private.h b/source4/heimdal/lib/gssapi/krb5/gsskrb5-private.h new file mode 100644 index 0000000000..426c0ab200 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/gsskrb5-private.h @@ -0,0 +1,705 @@ +/* This is a generated file */ +#ifndef __gsskrb5_private_h__ +#define __gsskrb5_private_h__ + +#include <stdarg.h> + +gssapi_mech_interface +__gss_krb5_initialize (void); + +OM_uint32 +__gsskrb5_ccache_lifetime ( + OM_uint32 */*minor_status*/, + krb5_ccache /*id*/, + krb5_principal /*principal*/, + OM_uint32 */*lifetime*/); + +OM_uint32 +_gss_DES3_get_mic_compat ( + OM_uint32 */*minor_status*/, + gsskrb5_ctx /*ctx*/); + +OM_uint32 +_gssapi_decapsulate ( + OM_uint32 */*minor_status*/, + gss_buffer_t /*input_token_buffer*/, + krb5_data */*out_data*/, + const gss_OID mech ); + +void +_gssapi_encap_length ( + size_t /*data_len*/, + size_t */*len*/, + size_t */*total_len*/, + const gss_OID /*mech*/); + +OM_uint32 +_gssapi_encapsulate ( + OM_uint32 */*minor_status*/, + const krb5_data */*in_data*/, + gss_buffer_t /*output_token*/, + const gss_OID mech ); + +OM_uint32 +_gssapi_get_mic_arcfour ( + OM_uint32 * /*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + gss_qop_t /*qop_req*/, + const gss_buffer_t /*message_buffer*/, + gss_buffer_t /*message_token*/, + krb5_keyblock */*key*/); + +void * +_gssapi_make_mech_header ( + void */*ptr*/, + size_t /*len*/, + const gss_OID /*mech*/); + +OM_uint32 +_gssapi_mic_cfx ( + OM_uint32 */*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + gss_qop_t /*qop_req*/, + const gss_buffer_t /*message_buffer*/, + gss_buffer_t /*message_token*/, + krb5_keyblock */*key*/); + +OM_uint32 +_gssapi_msg_order_check ( + struct gss_msg_order */*o*/, + OM_uint32 /*seq_num*/); + +OM_uint32 +_gssapi_msg_order_create ( + OM_uint32 */*minor_status*/, + struct gss_msg_order **/*o*/, + OM_uint32 /*flags*/, + OM_uint32 /*seq_num*/, + OM_uint32 /*jitter_window*/, + int /*use_64*/); + +OM_uint32 +_gssapi_msg_order_destroy (struct gss_msg_order **/*m*/); + +krb5_error_code +_gssapi_msg_order_export ( + krb5_storage */*sp*/, + struct gss_msg_order */*o*/); + +OM_uint32 +_gssapi_msg_order_f (OM_uint32 /*flags*/); + +OM_uint32 +_gssapi_msg_order_import ( + OM_uint32 */*minor_status*/, + krb5_storage */*sp*/, + struct gss_msg_order **/*o*/); + +OM_uint32 +_gssapi_unwrap_arcfour ( + OM_uint32 */*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + const gss_buffer_t /*input_message_buffer*/, + gss_buffer_t /*output_message_buffer*/, + int */*conf_state*/, + gss_qop_t */*qop_state*/, + krb5_keyblock */*key*/); + +OM_uint32 +_gssapi_unwrap_cfx ( + OM_uint32 */*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + const gss_buffer_t /*input_message_buffer*/, + gss_buffer_t /*output_message_buffer*/, + int */*conf_state*/, + gss_qop_t */*qop_state*/, + krb5_keyblock */*key*/); + +OM_uint32 +_gssapi_verify_mech_header ( + u_char **/*str*/, + size_t /*total_len*/, + gss_OID /*mech*/); + +OM_uint32 +_gssapi_verify_mic_arcfour ( + OM_uint32 * /*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + const gss_buffer_t /*message_buffer*/, + const gss_buffer_t /*token_buffer*/, + gss_qop_t * /*qop_state*/, + krb5_keyblock */*key*/, + char */*type*/); + +OM_uint32 +_gssapi_verify_mic_cfx ( + OM_uint32 */*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + const gss_buffer_t /*message_buffer*/, + const gss_buffer_t /*token_buffer*/, + gss_qop_t */*qop_state*/, + krb5_keyblock */*key*/); + +OM_uint32 +_gssapi_verify_pad ( + gss_buffer_t /*wrapped_token*/, + size_t /*datalen*/, + size_t */*padlen*/); + +OM_uint32 +_gssapi_wrap_arcfour ( + OM_uint32 * /*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + int /*conf_req_flag*/, + gss_qop_t /*qop_req*/, + const gss_buffer_t /*input_message_buffer*/, + int * /*conf_state*/, + gss_buffer_t /*output_message_buffer*/, + krb5_keyblock */*key*/); + +OM_uint32 +_gssapi_wrap_cfx ( + OM_uint32 */*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + int /*conf_req_flag*/, + gss_qop_t /*qop_req*/, + const gss_buffer_t /*input_message_buffer*/, + int */*conf_state*/, + gss_buffer_t /*output_message_buffer*/, + krb5_keyblock */*key*/); + +OM_uint32 +_gssapi_wrap_size_arcfour ( + OM_uint32 */*minor_status*/, + const gsskrb5_ctx /*ctx*/, + int /*conf_req_flag*/, + gss_qop_t /*qop_req*/, + OM_uint32 /*req_output_size*/, + OM_uint32 */*max_input_size*/, + krb5_keyblock */*key*/); + +OM_uint32 +_gssapi_wrap_size_cfx ( + OM_uint32 */*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + int /*conf_req_flag*/, + gss_qop_t /*qop_req*/, + OM_uint32 /*req_output_size*/, + OM_uint32 */*max_input_size*/, + krb5_keyblock */*key*/); + +OM_uint32 +_gsskrb5_accept_sec_context ( + OM_uint32 * /*minor_status*/, + gss_ctx_id_t * /*context_handle*/, + const gss_cred_id_t /*acceptor_cred_handle*/, + const gss_buffer_t /*input_token_buffer*/, + const gss_channel_bindings_t /*input_chan_bindings*/, + gss_name_t * /*src_name*/, + gss_OID * /*mech_type*/, + gss_buffer_t /*output_token*/, + OM_uint32 * /*ret_flags*/, + OM_uint32 * /*time_rec*/, + gss_cred_id_t * /*delegated_cred_handle*/); + +OM_uint32 +_gsskrb5_acquire_cred ( + OM_uint32 * /*minor_status*/, + const gss_name_t /*desired_name*/, + OM_uint32 /*time_req*/, + const gss_OID_set /*desired_mechs*/, + gss_cred_usage_t /*cred_usage*/, + gss_cred_id_t * /*output_cred_handle*/, + gss_OID_set * /*actual_mechs*/, + OM_uint32 * time_rec ); + +OM_uint32 +_gsskrb5_add_cred ( + OM_uint32 */*minor_status*/, + const gss_cred_id_t /*input_cred_handle*/, + const gss_name_t /*desired_name*/, + const gss_OID /*desired_mech*/, + gss_cred_usage_t /*cred_usage*/, + OM_uint32 /*initiator_time_req*/, + OM_uint32 /*acceptor_time_req*/, + gss_cred_id_t */*output_cred_handle*/, + gss_OID_set */*actual_mechs*/, + OM_uint32 */*initiator_time_rec*/, + OM_uint32 */*acceptor_time_rec*/); + +OM_uint32 +_gsskrb5_add_oid_set_member ( + OM_uint32 * /*minor_status*/, + const gss_OID /*member_oid*/, + gss_OID_set * oid_set ); + +OM_uint32 +_gsskrb5_canonicalize_name ( + OM_uint32 * /*minor_status*/, + const gss_name_t /*input_name*/, + const gss_OID /*mech_type*/, + gss_name_t * output_name ); + +void +_gsskrb5_clear_status (void); + +OM_uint32 +_gsskrb5_compare_name ( + OM_uint32 * /*minor_status*/, + const gss_name_t /*name1*/, + const gss_name_t /*name2*/, + int * name_equal ); + +OM_uint32 +_gsskrb5_context_time ( + OM_uint32 * /*minor_status*/, + const gss_ctx_id_t /*context_handle*/, + OM_uint32 * time_rec ); + +OM_uint32 +_gsskrb5_create_8003_checksum ( + OM_uint32 */*minor_status*/, + const gss_channel_bindings_t /*input_chan_bindings*/, + OM_uint32 /*flags*/, + const krb5_data */*fwd_data*/, + Checksum */*result*/); + +OM_uint32 +_gsskrb5_create_ctx ( + OM_uint32 * /*minor_status*/, + gss_ctx_id_t * /*context_handle*/, + const gss_channel_bindings_t /*input_chan_bindings*/, + enum gss_ctx_id_t_state /*state*/); + +OM_uint32 +_gsskrb5_create_empty_oid_set ( + OM_uint32 * /*minor_status*/, + gss_OID_set * oid_set ); + +OM_uint32 +_gsskrb5_decapsulate ( + OM_uint32 */*minor_status*/, + gss_buffer_t /*input_token_buffer*/, + krb5_data */*out_data*/, + const void */*type*/, + gss_OID /*oid*/); + +krb5_error_code +_gsskrb5_decode_be_om_uint32 ( + const void */*ptr*/, + OM_uint32 */*n*/); + +krb5_error_code +_gsskrb5_decode_om_uint32 ( + const void */*ptr*/, + OM_uint32 */*n*/); + +OM_uint32 +_gsskrb5_delete_sec_context ( + OM_uint32 * /*minor_status*/, + gss_ctx_id_t * /*context_handle*/, + gss_buffer_t /*output_token*/); + +OM_uint32 +_gsskrb5_display_name ( + OM_uint32 * /*minor_status*/, + const gss_name_t /*input_name*/, + gss_buffer_t /*output_name_buffer*/, + gss_OID * output_name_type ); + +OM_uint32 +_gsskrb5_display_status ( + OM_uint32 */*minor_status*/, + OM_uint32 /*status_value*/, + int /*status_type*/, + const gss_OID /*mech_type*/, + OM_uint32 */*message_context*/, + gss_buffer_t /*status_string*/); + +OM_uint32 +_gsskrb5_duplicate_name ( + OM_uint32 * /*minor_status*/, + const gss_name_t /*src_name*/, + gss_name_t * dest_name ); + +void +_gsskrb5_encap_length ( + size_t /*data_len*/, + size_t */*len*/, + size_t */*total_len*/, + const gss_OID /*mech*/); + +OM_uint32 +_gsskrb5_encapsulate ( + OM_uint32 */*minor_status*/, + const krb5_data */*in_data*/, + gss_buffer_t /*output_token*/, + const void */*type*/, + const gss_OID mech ); + +krb5_error_code +_gsskrb5_encode_be_om_uint32 ( + OM_uint32 /*n*/, + u_char */*p*/); + +krb5_error_code +_gsskrb5_encode_om_uint32 ( + OM_uint32 /*n*/, + u_char */*p*/); + +OM_uint32 +_gsskrb5_export_name ( + OM_uint32 * /*minor_status*/, + const gss_name_t /*input_name*/, + gss_buffer_t exported_name ); + +OM_uint32 +_gsskrb5_export_sec_context ( + OM_uint32 * /*minor_status*/, + gss_ctx_id_t * /*context_handle*/, + gss_buffer_t interprocess_token ); + +char * +_gsskrb5_get_error_string (void); + +ssize_t +_gsskrb5_get_mech ( + const u_char */*ptr*/, + size_t /*total_len*/, + const u_char **/*mech_ret*/); + +OM_uint32 +_gsskrb5_get_mic ( + OM_uint32 * /*minor_status*/, + const gss_ctx_id_t /*context_handle*/, + gss_qop_t /*qop_req*/, + const gss_buffer_t /*message_buffer*/, + gss_buffer_t message_token ); + +struct gssapi_thr_context * +_gsskrb5_get_thread_context (int /*createp*/); + +OM_uint32 +_gsskrb5_get_tkt_flags ( + OM_uint32 */*minor_status*/, + gsskrb5_ctx /*ctx*/, + OM_uint32 */*tkt_flags*/); + +OM_uint32 +_gsskrb5_import_cred ( + OM_uint32 */*minor_status*/, + krb5_ccache /*id*/, + krb5_principal /*keytab_principal*/, + krb5_keytab /*keytab*/, + gss_cred_id_t */*cred*/); + +OM_uint32 +_gsskrb5_import_name ( + OM_uint32 * /*minor_status*/, + const gss_buffer_t /*input_name_buffer*/, + const gss_OID /*input_name_type*/, + gss_name_t * output_name ); + +OM_uint32 +_gsskrb5_import_sec_context ( + OM_uint32 * /*minor_status*/, + const gss_buffer_t /*interprocess_token*/, + gss_ctx_id_t * context_handle ); + +OM_uint32 +_gsskrb5_indicate_mechs ( + OM_uint32 * /*minor_status*/, + gss_OID_set * mech_set ); + +krb5_error_code +_gsskrb5_init (void); + +OM_uint32 +_gsskrb5_init_sec_context ( + OM_uint32 * /*minor_status*/, + const gss_cred_id_t /*initiator_cred_handle*/, + gss_ctx_id_t * /*context_handle*/, + const gss_name_t /*target_name*/, + const gss_OID /*mech_type*/, + OM_uint32 /*req_flags*/, + OM_uint32 /*time_req*/, + const gss_channel_bindings_t /*input_chan_bindings*/, + const gss_buffer_t /*input_token*/, + gss_OID * /*actual_mech_type*/, + gss_buffer_t /*output_token*/, + OM_uint32 * /*ret_flags*/, + OM_uint32 * time_rec ); + +OM_uint32 +_gsskrb5_inquire_context ( + OM_uint32 * /*minor_status*/, + const gss_ctx_id_t /*context_handle*/, + gss_name_t * /*src_name*/, + gss_name_t * /*targ_name*/, + OM_uint32 * /*lifetime_rec*/, + gss_OID * /*mech_type*/, + OM_uint32 * /*ctx_flags*/, + int * /*locally_initiated*/, + int * open_context ); + +OM_uint32 +_gsskrb5_inquire_cred ( + OM_uint32 * /*minor_status*/, + const gss_cred_id_t /*cred_handle*/, + gss_name_t * /*output_name*/, + OM_uint32 * /*lifetime*/, + gss_cred_usage_t * /*cred_usage*/, + gss_OID_set * mechanisms ); + +OM_uint32 +_gsskrb5_inquire_cred_by_mech ( + OM_uint32 * /*minor_status*/, + const gss_cred_id_t /*cred_handle*/, + const gss_OID /*mech_type*/, + gss_name_t * /*name*/, + OM_uint32 * /*initiator_lifetime*/, + OM_uint32 * /*acceptor_lifetime*/, + gss_cred_usage_t * cred_usage ); + +OM_uint32 +_gsskrb5_inquire_cred_by_oid ( + OM_uint32 * /*minor_status*/, + const gss_cred_id_t /*cred_handle*/, + const gss_OID /*desired_object*/, + gss_buffer_set_t */*data_set*/); + +OM_uint32 +_gsskrb5_inquire_mechs_for_name ( + OM_uint32 * /*minor_status*/, + const gss_name_t /*input_name*/, + gss_OID_set * mech_types ); + +OM_uint32 +_gsskrb5_inquire_names_for_mech ( + OM_uint32 * /*minor_status*/, + const gss_OID /*mechanism*/, + gss_OID_set * name_types ); + +OM_uint32 +_gsskrb5_inquire_sec_context_by_oid ( + OM_uint32 */*minor_status*/, + const gss_ctx_id_t /*context_handle*/, + const gss_OID /*desired_object*/, + gss_buffer_set_t */*data_set*/); + +OM_uint32 +_gsskrb5_krb5_ccache_name ( + OM_uint32 */*minor_status*/, + const char */*name*/, + const char **/*out_name*/); + +OM_uint32 +_gsskrb5_lifetime_left ( + OM_uint32 */*minor_status*/, + OM_uint32 /*lifetime*/, + OM_uint32 */*lifetime_rec*/); + +void * +_gsskrb5_make_header ( + void */*ptr*/, + size_t /*len*/, + const void */*type*/, + const gss_OID /*mech*/); + +OM_uint32 +_gsskrb5_process_context_token ( + OM_uint32 */*minor_status*/, + const gss_ctx_id_t /*context_handle*/, + const gss_buffer_t token_buffer ); + +OM_uint32 +_gsskrb5_register_acceptor_identity (const char */*identity*/); + +OM_uint32 +_gsskrb5_release_buffer ( + OM_uint32 * /*minor_status*/, + gss_buffer_t buffer ); + +OM_uint32 +_gsskrb5_release_cred ( + OM_uint32 * /*minor_status*/, + gss_cred_id_t * cred_handle ); + +OM_uint32 +_gsskrb5_release_name ( + OM_uint32 * /*minor_status*/, + gss_name_t * input_name ); + +OM_uint32 +_gsskrb5_release_oid_set ( + OM_uint32 * /*minor_status*/, + gss_OID_set * set ); + +OM_uint32 +_gsskrb5_seal ( + OM_uint32 * /*minor_status*/, + gss_ctx_id_t /*context_handle*/, + int /*conf_req_flag*/, + int /*qop_req*/, + gss_buffer_t /*input_message_buffer*/, + int * /*conf_state*/, + gss_buffer_t output_message_buffer ); + +OM_uint32 +_gsskrb5_set_cred_option ( + OM_uint32 */*minor_status*/, + gss_cred_id_t */*cred_handle*/, + const gss_OID /*desired_object*/, + const gss_buffer_t /*value*/); + +void +_gsskrb5_set_error_string (void); + +OM_uint32 +_gsskrb5_set_sec_context_option ( + OM_uint32 */*minor_status*/, + gss_ctx_id_t */*context_handle*/, + const gss_OID /*desired_object*/, + const gss_buffer_t /*value*/); + +void +_gsskrb5_set_status ( + const char */*fmt*/, + ...); + +OM_uint32 +_gsskrb5_sign ( + OM_uint32 * /*minor_status*/, + gss_ctx_id_t /*context_handle*/, + int /*qop_req*/, + gss_buffer_t /*message_buffer*/, + gss_buffer_t message_token ); + +OM_uint32 +_gsskrb5_test_oid_set_member ( + OM_uint32 * /*minor_status*/, + const gss_OID /*member*/, + const gss_OID_set /*set*/, + int * present ); + +OM_uint32 +_gsskrb5_unseal ( + OM_uint32 * /*minor_status*/, + gss_ctx_id_t /*context_handle*/, + gss_buffer_t /*input_message_buffer*/, + gss_buffer_t /*output_message_buffer*/, + int * /*conf_state*/, + int * qop_state ); + +OM_uint32 +_gsskrb5_unwrap ( + OM_uint32 * /*minor_status*/, + const gss_ctx_id_t /*context_handle*/, + const gss_buffer_t /*input_message_buffer*/, + gss_buffer_t /*output_message_buffer*/, + int * /*conf_state*/, + gss_qop_t * qop_state ); + +OM_uint32 +_gsskrb5_verify ( + OM_uint32 * /*minor_status*/, + gss_ctx_id_t /*context_handle*/, + gss_buffer_t /*message_buffer*/, + gss_buffer_t /*token_buffer*/, + int * qop_state ); + +OM_uint32 +_gsskrb5_verify_8003_checksum ( + OM_uint32 */*minor_status*/, + const gss_channel_bindings_t /*input_chan_bindings*/, + const Checksum */*cksum*/, + OM_uint32 */*flags*/, + krb5_data */*fwd_data*/); + +OM_uint32 +_gsskrb5_verify_header ( + u_char **/*str*/, + size_t /*total_len*/, + const void */*type*/, + gss_OID /*oid*/); + +OM_uint32 +_gsskrb5_verify_mic ( + OM_uint32 * /*minor_status*/, + const gss_ctx_id_t /*context_handle*/, + const gss_buffer_t /*message_buffer*/, + const gss_buffer_t /*token_buffer*/, + gss_qop_t * qop_state ); + +OM_uint32 +_gsskrb5_verify_mic_internal ( + OM_uint32 * /*minor_status*/, + const gsskrb5_ctx /*context_handle*/, + const gss_buffer_t /*message_buffer*/, + const gss_buffer_t /*token_buffer*/, + gss_qop_t * /*qop_state*/, + char * type ); + +OM_uint32 +_gsskrb5_wrap ( + OM_uint32 * /*minor_status*/, + const gss_ctx_id_t /*context_handle*/, + int /*conf_req_flag*/, + gss_qop_t /*qop_req*/, + const gss_buffer_t /*input_message_buffer*/, + int * /*conf_state*/, + gss_buffer_t output_message_buffer ); + +OM_uint32 +_gsskrb5_wrap_size_limit ( + OM_uint32 * /*minor_status*/, + const gss_ctx_id_t /*context_handle*/, + int /*conf_req_flag*/, + gss_qop_t /*qop_req*/, + OM_uint32 /*req_output_size*/, + OM_uint32 * max_input_size ); + +krb5_error_code +_gsskrb5cfx_max_wrap_length_cfx ( + krb5_crypto /*crypto*/, + int /*conf_req_flag*/, + size_t /*input_length*/, + OM_uint32 */*output_length*/); + +krb5_error_code +_gsskrb5cfx_wrap_length_cfx ( + krb5_crypto /*crypto*/, + int /*conf_req_flag*/, + size_t /*input_length*/, + size_t */*output_length*/, + size_t */*cksumsize*/, + uint16_t */*padlength*/); + +krb5_error_code +_gsskrb5i_address_to_krb5addr ( + OM_uint32 /*gss_addr_type*/, + gss_buffer_desc */*gss_addr*/, + int16_t /*port*/, + krb5_address */*address*/); + +krb5_error_code +_gsskrb5i_get_acceptor_subkey ( + const gsskrb5_ctx /*ctx*/, + krb5_keyblock **/*key*/); + +krb5_error_code +_gsskrb5i_get_initiator_subkey ( + const gsskrb5_ctx /*ctx*/, + krb5_keyblock **/*key*/); + +OM_uint32 +_gsskrb5i_get_token_key ( + const gsskrb5_ctx /*ctx*/, + krb5_keyblock **/*key*/); + +void +_gsskrb5i_is_cfx ( + gsskrb5_ctx /*ctx*/, + int */*is_cfx*/); + +#endif /* __gsskrb5_private_h__ */ diff --git a/source4/heimdal/lib/gssapi/krb5/gsskrb5_locl.h b/source4/heimdal/lib/gssapi/krb5/gsskrb5_locl.h new file mode 100644 index 0000000000..4d814032c3 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/gsskrb5_locl.h @@ -0,0 +1,133 @@ +/* + * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* $Id: gsskrb5_locl.h,v 1.6 2006/10/07 22:14:49 lha Exp $ */ + +#ifndef GSSKRB5_LOCL_H +#define GSSKRB5_LOCL_H + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <krb5_locl.h> +#include <gssapi.h> +#include <gssapi_mech.h> +#include <assert.h> + +#include "cfx.h" + +/* + * + */ + +struct gss_msg_order; + +typedef struct { + struct krb5_auth_context_data *auth_context; + krb5_principal source, target; + OM_uint32 flags; + enum { LOCAL = 1, OPEN = 2, + COMPAT_OLD_DES3 = 4, + COMPAT_OLD_DES3_SELECTED = 8, + ACCEPTOR_SUBKEY = 16 + } more_flags; + enum gss_ctx_id_t_state { + /* initiator states */ + INITIATOR_START, + INITIATOR_WAIT_FOR_MUTAL, + INITIATOR_READY, + /* acceptor states */ + ACCEPTOR_START, + ACCEPTOR_WAIT_FOR_DCESTYLE, + ACCEPTOR_READY + } state; + struct krb5_ticket *ticket; + OM_uint32 lifetime; + HEIMDAL_MUTEX ctx_id_mutex; + struct gss_msg_order *order; + krb5_keyblock *service_keyblock; + krb5_data fwd_data; +} *gsskrb5_ctx; + +typedef struct { + krb5_principal principal; + int cred_flags; +#define GSS_CF_DESTROY_CRED_ON_RELEASE 1 + struct krb5_keytab_data *keytab; + OM_uint32 lifetime; + gss_cred_usage_t usage; + gss_OID_set mechanisms; + struct krb5_ccache_data *ccache; + HEIMDAL_MUTEX cred_id_mutex; +} *gsskrb5_cred; + +typedef struct Principal *gsskrb5_name; + +/* + * + */ + +extern krb5_context _gsskrb5_context; + +extern krb5_keytab _gsskrb5_keytab; +extern HEIMDAL_MUTEX gssapi_keytab_mutex; + +struct gssapi_thr_context { + HEIMDAL_MUTEX mutex; + char *error_string; +}; + +/* + * Prototypes + */ + +#include <krb5/gsskrb5-private.h> + +#define GSSAPI_KRB5_INIT() do { \ + krb5_error_code kret_gss_init; \ + if((kret_gss_init = _gsskrb5_init ()) != 0) { \ + *minor_status = kret_gss_init; \ + return GSS_S_FAILURE; \ + } \ +} while (0) + +/* sec_context flags */ + +#define SC_LOCAL_ADDRESS 0x01 +#define SC_REMOTE_ADDRESS 0x02 +#define SC_KEYBLOCK 0x04 +#define SC_LOCAL_SUBKEY 0x08 +#define SC_REMOTE_SUBKEY 0x10 + +#endif diff --git a/source4/heimdal/lib/gssapi/krb5/import_name.c b/source4/heimdal/lib/gssapi/krb5/import_name.c new file mode 100644 index 0000000000..dc24ed5cf2 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/import_name.c @@ -0,0 +1,219 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: import_name.c,v 1.17 2006/10/07 22:14:51 lha Exp $"); + +static OM_uint32 +parse_krb5_name (OM_uint32 *minor_status, + const char *name, + gss_name_t *output_name) +{ + krb5_principal princ; + krb5_error_code kerr; + + kerr = krb5_parse_name (_gsskrb5_context, name, &princ); + + if (kerr == 0) { + *output_name = (gss_name_t)princ; + return GSS_S_COMPLETE; + } + _gsskrb5_set_error_string (); + *minor_status = kerr; + + if (kerr == KRB5_PARSE_ILLCHAR || kerr == KRB5_PARSE_MALFORMED) + return GSS_S_BAD_NAME; + + return GSS_S_FAILURE; +} + +static OM_uint32 +import_krb5_name (OM_uint32 *minor_status, + const gss_buffer_t input_name_buffer, + gss_name_t *output_name) +{ + OM_uint32 ret; + char *tmp; + + tmp = malloc (input_name_buffer->length + 1); + if (tmp == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + memcpy (tmp, + input_name_buffer->value, + input_name_buffer->length); + tmp[input_name_buffer->length] = '\0'; + + ret = parse_krb5_name(minor_status, tmp, output_name); + free(tmp); + + return ret; +} + +static OM_uint32 +import_hostbased_name (OM_uint32 *minor_status, + const gss_buffer_t input_name_buffer, + gss_name_t *output_name) +{ + krb5_error_code kerr; + char *tmp; + char *p; + char *host; + char local_hostname[MAXHOSTNAMELEN]; + krb5_principal princ = NULL; + + tmp = malloc (input_name_buffer->length + 1); + if (tmp == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + memcpy (tmp, + input_name_buffer->value, + input_name_buffer->length); + tmp[input_name_buffer->length] = '\0'; + + p = strchr (tmp, '@'); + if (p != NULL) { + *p = '\0'; + host = p + 1; + } else { + if (gethostname(local_hostname, sizeof(local_hostname)) < 0) { + *minor_status = errno; + free (tmp); + return GSS_S_FAILURE; + } + host = local_hostname; + } + + kerr = krb5_sname_to_principal (_gsskrb5_context, + host, + tmp, + KRB5_NT_SRV_HST, + &princ); + free (tmp); + *minor_status = kerr; + if (kerr == 0) { + *output_name = (gss_name_t)princ; + return GSS_S_COMPLETE; + } + _gsskrb5_set_error_string (); + *minor_status = kerr; + + if (kerr == KRB5_PARSE_ILLCHAR || kerr == KRB5_PARSE_MALFORMED) + return GSS_S_BAD_NAME; + + return GSS_S_FAILURE; +} + +static OM_uint32 +import_export_name (OM_uint32 *minor_status, + const gss_buffer_t input_name_buffer, + gss_name_t *output_name) +{ + unsigned char *p; + uint32_t length; + OM_uint32 ret; + char *name; + + if (input_name_buffer->length < 10 + GSS_KRB5_MECHANISM->length) + return GSS_S_BAD_NAME; + + /* TOK, MECH_OID_LEN, DER(MECH_OID), NAME_LEN, NAME */ + + p = input_name_buffer->value; + + if (memcmp(&p[0], "\x04\x01\x00", 3) != 0 || + p[3] != GSS_KRB5_MECHANISM->length + 2 || + p[4] != 0x06 || + p[5] != GSS_KRB5_MECHANISM->length || + memcmp(&p[6], GSS_KRB5_MECHANISM->elements, + GSS_KRB5_MECHANISM->length) != 0) + return GSS_S_BAD_NAME; + + p += 6 + GSS_KRB5_MECHANISM->length; + + length = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3]; + p += 4; + + if (length > input_name_buffer->length - 10 - GSS_KRB5_MECHANISM->length) + return GSS_S_BAD_NAME; + + name = malloc(length + 1); + if (name == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + memcpy(name, p, length); + name[length] = '\0'; + + ret = parse_krb5_name(minor_status, name, output_name); + free(name); + + return ret; +} + +OM_uint32 _gsskrb5_import_name + (OM_uint32 * minor_status, + const gss_buffer_t input_name_buffer, + const gss_OID input_name_type, + gss_name_t * output_name + ) +{ + GSSAPI_KRB5_INIT (); + + *minor_status = 0; + *output_name = GSS_C_NO_NAME; + + if (gss_oid_equal(input_name_type, GSS_C_NT_HOSTBASED_SERVICE) || + gss_oid_equal(input_name_type, GSS_C_NT_HOSTBASED_SERVICE_X)) + return import_hostbased_name (minor_status, + input_name_buffer, + output_name); + else if (gss_oid_equal(input_name_type, GSS_C_NO_OID) + || gss_oid_equal(input_name_type, GSS_C_NT_USER_NAME) + || gss_oid_equal(input_name_type, GSS_KRB5_NT_PRINCIPAL_NAME)) + /* default printable syntax */ + return import_krb5_name (minor_status, + input_name_buffer, + output_name); + else if (gss_oid_equal(input_name_type, GSS_C_NT_EXPORT_NAME)) { + return import_export_name(minor_status, + input_name_buffer, + output_name); + } else { + *minor_status = 0; + return GSS_S_BAD_NAMETYPE; + } +} diff --git a/source4/heimdal/lib/gssapi/krb5/import_sec_context.c b/source4/heimdal/lib/gssapi/krb5/import_sec_context.c new file mode 100644 index 0000000000..8131e2621d --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/import_sec_context.c @@ -0,0 +1,229 @@ +/* + * Copyright (c) 1999 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: import_sec_context.c,v 1.17 2006/10/07 22:14:53 lha Exp $"); + +OM_uint32 +_gsskrb5_import_sec_context ( + OM_uint32 * minor_status, + const gss_buffer_t interprocess_token, + gss_ctx_id_t * context_handle + ) +{ + OM_uint32 ret = GSS_S_FAILURE; + krb5_error_code kret; + krb5_storage *sp; + krb5_auth_context ac; + krb5_address local, remote; + krb5_address *localp, *remotep; + krb5_data data; + gss_buffer_desc buffer; + krb5_keyblock keyblock; + int32_t tmp; + int32_t flags; + gsskrb5_ctx ctx; + gss_name_t name; + + GSSAPI_KRB5_INIT (); + + *context_handle = GSS_C_NO_CONTEXT; + + localp = remotep = NULL; + + sp = krb5_storage_from_mem (interprocess_token->value, + interprocess_token->length); + if (sp == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + ctx = calloc(1, sizeof(*ctx)); + if (ctx == NULL) { + *minor_status = ENOMEM; + krb5_storage_free (sp); + return GSS_S_FAILURE; + } + HEIMDAL_MUTEX_init(&ctx->ctx_id_mutex); + + kret = krb5_auth_con_init (_gsskrb5_context, + &ctx->auth_context); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + ret = GSS_S_FAILURE; + goto failure; + } + + /* flags */ + + *minor_status = 0; + + if (krb5_ret_int32 (sp, &flags) != 0) + goto failure; + + /* retrieve the auth context */ + + ac = ctx->auth_context; + if (krb5_ret_uint32 (sp, &ac->flags) != 0) + goto failure; + if (flags & SC_LOCAL_ADDRESS) { + if (krb5_ret_address (sp, localp = &local) != 0) + goto failure; + } + + if (flags & SC_REMOTE_ADDRESS) { + if (krb5_ret_address (sp, remotep = &remote) != 0) + goto failure; + } + + krb5_auth_con_setaddrs (_gsskrb5_context, ac, localp, remotep); + if (localp) + krb5_free_address (_gsskrb5_context, localp); + if (remotep) + krb5_free_address (_gsskrb5_context, remotep); + localp = remotep = NULL; + + if (krb5_ret_int16 (sp, &ac->local_port) != 0) + goto failure; + + if (krb5_ret_int16 (sp, &ac->remote_port) != 0) + goto failure; + if (flags & SC_KEYBLOCK) { + if (krb5_ret_keyblock (sp, &keyblock) != 0) + goto failure; + krb5_auth_con_setkey (_gsskrb5_context, ac, &keyblock); + krb5_free_keyblock_contents (_gsskrb5_context, &keyblock); + } + if (flags & SC_LOCAL_SUBKEY) { + if (krb5_ret_keyblock (sp, &keyblock) != 0) + goto failure; + krb5_auth_con_setlocalsubkey (_gsskrb5_context, ac, &keyblock); + krb5_free_keyblock_contents (_gsskrb5_context, &keyblock); + } + if (flags & SC_REMOTE_SUBKEY) { + if (krb5_ret_keyblock (sp, &keyblock) != 0) + goto failure; + krb5_auth_con_setremotesubkey (_gsskrb5_context, ac, &keyblock); + krb5_free_keyblock_contents (_gsskrb5_context, &keyblock); + } + if (krb5_ret_uint32 (sp, &ac->local_seqnumber)) + goto failure; + if (krb5_ret_uint32 (sp, &ac->remote_seqnumber)) + goto failure; + + if (krb5_ret_int32 (sp, &tmp) != 0) + goto failure; + ac->keytype = tmp; + if (krb5_ret_int32 (sp, &tmp) != 0) + goto failure; + ac->cksumtype = tmp; + + /* names */ + + if (krb5_ret_data (sp, &data)) + goto failure; + buffer.value = data.data; + buffer.length = data.length; + + ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME, + &name); + if (ret) { + ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NO_OID, + &name); + if (ret) { + krb5_data_free (&data); + goto failure; + } + } + ctx->source = (krb5_principal)name; + krb5_data_free (&data); + + if (krb5_ret_data (sp, &data) != 0) + goto failure; + buffer.value = data.data; + buffer.length = data.length; + + ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME, + &name); + if (ret) { + ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NO_OID, + &name); + if (ret) { + krb5_data_free (&data); + goto failure; + } + } + ctx->target = (krb5_principal)name; + krb5_data_free (&data); + + if (krb5_ret_int32 (sp, &tmp)) + goto failure; + ctx->flags = tmp; + if (krb5_ret_int32 (sp, &tmp)) + goto failure; + ctx->more_flags = tmp; + if (krb5_ret_int32 (sp, &tmp)) + goto failure; + ctx->lifetime = tmp; + + ret = _gssapi_msg_order_import(minor_status, sp, &ctx->order); + if (ret) + goto failure; + + krb5_storage_free (sp); + + *context_handle = (gss_ctx_id_t)ctx; + + return GSS_S_COMPLETE; + +failure: + krb5_auth_con_free (_gsskrb5_context, + ctx->auth_context); + if (ctx->source != NULL) + krb5_free_principal(_gsskrb5_context, ctx->source); + if (ctx->target != NULL) + krb5_free_principal(_gsskrb5_context, ctx->target); + if (localp) + krb5_free_address (_gsskrb5_context, localp); + if (remotep) + krb5_free_address (_gsskrb5_context, remotep); + if(ctx->order) + _gssapi_msg_order_destroy(&ctx->order); + HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex); + krb5_storage_free (sp); + free (ctx); + *context_handle = GSS_C_NO_CONTEXT; + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/indicate_mechs.c b/source4/heimdal/lib/gssapi/krb5/indicate_mechs.c new file mode 100644 index 0000000000..3827533219 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/indicate_mechs.c @@ -0,0 +1,58 @@ +/* + * Copyright (c) 1997 - 2001, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: indicate_mechs.c,v 1.9 2006/10/07 22:14:56 lha Exp $"); + +OM_uint32 _gsskrb5_indicate_mechs + (OM_uint32 * minor_status, + gss_OID_set * mech_set + ) +{ + OM_uint32 ret, junk; + + ret = _gsskrb5_create_empty_oid_set(minor_status, mech_set); + if (ret) + return ret; + + ret = _gsskrb5_add_oid_set_member(minor_status, + GSS_KRB5_MECHANISM, mech_set); + if (ret) { + _gsskrb5_release_oid_set(&junk, mech_set); + return ret; + } + + *minor_status = 0; + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/init.c b/source4/heimdal/lib/gssapi/krb5/init.c new file mode 100644 index 0000000000..cbef8740b7 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/init.c @@ -0,0 +1,111 @@ +/* + * Copyright (c) 1997 - 2001, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: init.c,v 1.9 2006/10/07 22:14:58 lha Exp $"); + +static HEIMDAL_MUTEX _gsskrb5_context_mutex = HEIMDAL_MUTEX_INITIALIZER; +static int created_key; +static HEIMDAL_thread_key gssapi_context_key; + +static void +gssapi_destroy_thread_context(void *ptr) +{ + struct gssapi_thr_context *ctx = ptr; + + if (ctx == NULL) + return; + if (ctx->error_string) + free(ctx->error_string); + HEIMDAL_MUTEX_destroy(&ctx->mutex); + free(ctx); +} + + +struct gssapi_thr_context * +_gsskrb5_get_thread_context(int createp) +{ + struct gssapi_thr_context *ctx; + int ret; + + HEIMDAL_MUTEX_lock(&_gsskrb5_context_mutex); + + if (!created_key) + abort(); + ctx = HEIMDAL_getspecific(gssapi_context_key); + if (ctx == NULL) { + if (!createp) + goto fail; + ctx = malloc(sizeof(*ctx)); + if (ctx == NULL) + goto fail; + ctx->error_string = NULL; + HEIMDAL_MUTEX_init(&ctx->mutex); + HEIMDAL_setspecific(gssapi_context_key, ctx, ret); + if (ret) + goto fail; + } + HEIMDAL_MUTEX_unlock(&_gsskrb5_context_mutex); + return ctx; + fail: + HEIMDAL_MUTEX_unlock(&_gsskrb5_context_mutex); + if (ctx) + free(ctx); + return NULL; +} + +krb5_error_code +_gsskrb5_init (void) +{ + krb5_error_code ret = 0; + + HEIMDAL_MUTEX_lock(&_gsskrb5_context_mutex); + + if(_gsskrb5_context == NULL) + ret = krb5_init_context (&_gsskrb5_context); + if (ret == 0 && !created_key) { + HEIMDAL_key_create(&gssapi_context_key, + gssapi_destroy_thread_context, + ret); + if (ret) { + krb5_free_context(_gsskrb5_context); + _gsskrb5_context = NULL; + } else + created_key = 1; + } + + HEIMDAL_MUTEX_unlock(&_gsskrb5_context_mutex); + + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/init_sec_context.c b/source4/heimdal/lib/gssapi/krb5/init_sec_context.c new file mode 100644 index 0000000000..00f2543833 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/init_sec_context.c @@ -0,0 +1,789 @@ +/* + * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: init_sec_context.c,v 1.72 2006/10/24 23:03:19 lha Exp $"); + +/* + * copy the addresses from `input_chan_bindings' (if any) to + * the auth context `ac' + */ + +static OM_uint32 +set_addresses (krb5_auth_context ac, + const gss_channel_bindings_t input_chan_bindings) +{ + /* Port numbers are expected to be in application_data.value, + * initator's port first */ + + krb5_address initiator_addr, acceptor_addr; + krb5_error_code kret; + + if (input_chan_bindings == GSS_C_NO_CHANNEL_BINDINGS + || input_chan_bindings->application_data.length != + 2 * sizeof(ac->local_port)) + return 0; + + memset(&initiator_addr, 0, sizeof(initiator_addr)); + memset(&acceptor_addr, 0, sizeof(acceptor_addr)); + + ac->local_port = + *(int16_t *) input_chan_bindings->application_data.value; + + ac->remote_port = + *((int16_t *) input_chan_bindings->application_data.value + 1); + + kret = _gsskrb5i_address_to_krb5addr(input_chan_bindings->acceptor_addrtype, + &input_chan_bindings->acceptor_address, + ac->remote_port, + &acceptor_addr); + if (kret) + return kret; + + kret = _gsskrb5i_address_to_krb5addr(input_chan_bindings->initiator_addrtype, + &input_chan_bindings->initiator_address, + ac->local_port, + &initiator_addr); + if (kret) { + krb5_free_address (_gsskrb5_context, &acceptor_addr); + return kret; + } + + kret = krb5_auth_con_setaddrs(_gsskrb5_context, + ac, + &initiator_addr, /* local address */ + &acceptor_addr); /* remote address */ + + krb5_free_address (_gsskrb5_context, &initiator_addr); + krb5_free_address (_gsskrb5_context, &acceptor_addr); + +#if 0 + free(input_chan_bindings->application_data.value); + input_chan_bindings->application_data.value = NULL; + input_chan_bindings->application_data.length = 0; +#endif + + return kret; +} + +OM_uint32 +_gsskrb5_create_ctx( + OM_uint32 * minor_status, + gss_ctx_id_t * context_handle, + const gss_channel_bindings_t input_chan_bindings, + enum gss_ctx_id_t_state state) +{ + krb5_error_code kret; + gsskrb5_ctx ctx; + + *context_handle = NULL; + + ctx = malloc(sizeof(*ctx)); + if (ctx == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + ctx->auth_context = NULL; + ctx->source = NULL; + ctx->target = NULL; + ctx->state = state; + ctx->flags = 0; + ctx->more_flags = 0; + ctx->service_keyblock = NULL; + ctx->ticket = NULL; + krb5_data_zero(&ctx->fwd_data); + ctx->lifetime = GSS_C_INDEFINITE; + ctx->order = NULL; + HEIMDAL_MUTEX_init(&ctx->ctx_id_mutex); + + kret = krb5_auth_con_init (_gsskrb5_context, &ctx->auth_context); + if (kret) { + *minor_status = kret; + _gsskrb5_set_error_string (); + + HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex); + + return GSS_S_FAILURE; + } + + kret = set_addresses(ctx->auth_context, input_chan_bindings); + if (kret) { + *minor_status = kret; + + HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex); + + krb5_auth_con_free(_gsskrb5_context, ctx->auth_context); + + return GSS_S_BAD_BINDINGS; + } + + /* + * We need a sequence number + */ + + krb5_auth_con_addflags(_gsskrb5_context, + ctx->auth_context, + KRB5_AUTH_CONTEXT_DO_SEQUENCE | + KRB5_AUTH_CONTEXT_CLEAR_FORWARDED_CRED, + NULL); + + *context_handle = (gss_ctx_id_t)ctx; + + return GSS_S_COMPLETE; +} + + +static OM_uint32 +gsskrb5_get_creds( + OM_uint32 * minor_status, + krb5_ccache ccache, + gsskrb5_ctx ctx, + krb5_const_principal target_name, + OM_uint32 time_req, + OM_uint32 * time_rec, + krb5_creds ** cred) +{ + OM_uint32 ret; + krb5_error_code kret; + krb5_creds this_cred; + OM_uint32 lifetime_rec; + + *cred = NULL; + + memset(&this_cred, 0, sizeof(this_cred)); + this_cred.client = ctx->source; + this_cred.server = ctx->target; + + if (time_req && time_req != GSS_C_INDEFINITE) { + krb5_timestamp ts; + + krb5_timeofday (_gsskrb5_context, &ts); + this_cred.times.endtime = ts + time_req; + } else { + this_cred.times.endtime = 0; + } + + this_cred.session.keytype = KEYTYPE_NULL; + + kret = krb5_get_credentials(_gsskrb5_context, + 0, + ccache, + &this_cred, + cred); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + ctx->lifetime = (*cred)->times.endtime; + + ret = _gsskrb5_lifetime_left(minor_status, ctx->lifetime, &lifetime_rec); + if (ret) return ret; + + if (lifetime_rec == 0) { + *minor_status = 0; + return GSS_S_CONTEXT_EXPIRED; + } + + if (time_rec) *time_rec = lifetime_rec; + + return GSS_S_COMPLETE; +} + +static OM_uint32 +gsskrb5_initiator_ready( + OM_uint32 * minor_status, + gsskrb5_ctx ctx) +{ + OM_uint32 ret; + int32_t seq_number; + int is_cfx = 0; + OM_uint32 flags = ctx->flags; + + krb5_auth_getremoteseqnumber (_gsskrb5_context, + ctx->auth_context, + &seq_number); + + _gsskrb5i_is_cfx(ctx, &is_cfx); + + ret = _gssapi_msg_order_create(minor_status, + &ctx->order, + _gssapi_msg_order_f(flags), + seq_number, 0, is_cfx); + if (ret) return ret; + + ctx->state = INITIATOR_READY; + ctx->more_flags |= OPEN; + + return GSS_S_COMPLETE; +} + +/* + * handle delegated creds in init-sec-context + */ + +static void +do_delegation (krb5_auth_context ac, + krb5_ccache ccache, + krb5_creds *cred, + krb5_const_principal name, + krb5_data *fwd_data, + uint32_t *flags) +{ + krb5_creds creds; + KDCOptions fwd_flags; + krb5_error_code kret; + + memset (&creds, 0, sizeof(creds)); + krb5_data_zero (fwd_data); + + kret = krb5_cc_get_principal(_gsskrb5_context, ccache, &creds.client); + if (kret) + goto out; + + kret = krb5_build_principal(_gsskrb5_context, + &creds.server, + strlen(creds.client->realm), + creds.client->realm, + KRB5_TGS_NAME, + creds.client->realm, + NULL); + if (kret) + goto out; + + creds.times.endtime = 0; + + memset(&fwd_flags, 0, sizeof(fwd_flags)); + fwd_flags.forwarded = 1; + fwd_flags.forwardable = 1; + + if ( /*target_name->name.name_type != KRB5_NT_SRV_HST ||*/ + name->name.name_string.len < 2) + goto out; + + kret = krb5_get_forwarded_creds(_gsskrb5_context, + ac, + ccache, + KDCOptions2int(fwd_flags), + name->name.name_string.val[1], + &creds, + fwd_data); + + out: + if (kret) + *flags &= ~GSS_C_DELEG_FLAG; + else + *flags |= GSS_C_DELEG_FLAG; + + if (creds.client) + krb5_free_principal(_gsskrb5_context, creds.client); + if (creds.server) + krb5_free_principal(_gsskrb5_context, creds.server); +} + +/* + * first stage of init-sec-context + */ + +static OM_uint32 +init_auth +(OM_uint32 * minor_status, + gsskrb5_cred initiator_cred_handle, + gsskrb5_ctx ctx, + krb5_const_principal name, + const gss_OID mech_type, + OM_uint32 req_flags, + OM_uint32 time_req, + const gss_channel_bindings_t input_chan_bindings, + const gss_buffer_t input_token, + gss_OID * actual_mech_type, + gss_buffer_t output_token, + OM_uint32 * ret_flags, + OM_uint32 * time_rec + ) +{ + OM_uint32 ret = GSS_S_FAILURE; + krb5_error_code kret; + krb5_flags ap_options; + krb5_creds *cred = NULL; + krb5_data outbuf; + krb5_ccache ccache = NULL; + uint32_t flags; + krb5_data authenticator; + Checksum cksum; + krb5_enctype enctype; + krb5_data fwd_data; + OM_uint32 lifetime_rec; + + krb5_data_zero(&outbuf); + krb5_data_zero(&fwd_data); + + *minor_status = 0; + + if (actual_mech_type) + *actual_mech_type = GSS_KRB5_MECHANISM; + + if (initiator_cred_handle == NULL) { + kret = krb5_cc_default (_gsskrb5_context, &ccache); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + ret = GSS_S_FAILURE; + goto failure; + } + } else + ccache = initiator_cred_handle->ccache; + + kret = krb5_cc_get_principal (_gsskrb5_context, ccache, &ctx->source); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + ret = GSS_S_FAILURE; + goto failure; + } + + kret = krb5_copy_principal (_gsskrb5_context, name, &ctx->target); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + ret = GSS_S_FAILURE; + goto failure; + } + + ret = _gss_DES3_get_mic_compat(minor_status, ctx); + if (ret) + goto failure; + + + ret = gsskrb5_get_creds(minor_status, + ccache, + ctx, + ctx->target, + time_req, + time_rec, + &cred); + if (ret) + goto failure; + + ctx->lifetime = cred->times.endtime; + + ret = _gsskrb5_lifetime_left(minor_status, + ctx->lifetime, + &lifetime_rec); + if (ret) { + goto failure; + } + + if (lifetime_rec == 0) { + *minor_status = 0; + ret = GSS_S_CONTEXT_EXPIRED; + goto failure; + } + + krb5_auth_con_setkey(_gsskrb5_context, + ctx->auth_context, + &cred->session); + + kret = krb5_auth_con_generatelocalsubkey(_gsskrb5_context, + ctx->auth_context, + &cred->session); + if(kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + ret = GSS_S_FAILURE; + goto failure; + } + + /* + * If the credential doesn't have ok-as-delegate, check what local + * policy say about ok-as-delegate, default is FALSE that makes + * code ignore the KDC setting and follow what the application + * requested. If its TRUE, strip of the GSS_C_DELEG_FLAG if the + * KDC doesn't set ok-as-delegate. + */ + if (!cred->flags.b.ok_as_delegate) { + krb5_boolean delegate; + + krb5_appdefault_boolean(_gsskrb5_context, + "gssapi", name->realm, + "ok-as-delegate", FALSE, &delegate); + if (delegate) + req_flags &= ~GSS_C_DELEG_FLAG; + } + + flags = 0; + ap_options = 0; + if (req_flags & GSS_C_DELEG_FLAG) + do_delegation (ctx->auth_context, + ccache, cred, name, &fwd_data, &flags); + + if (req_flags & GSS_C_MUTUAL_FLAG) { + flags |= GSS_C_MUTUAL_FLAG; + ap_options |= AP_OPTS_MUTUAL_REQUIRED; + } + + if (req_flags & GSS_C_REPLAY_FLAG) + flags |= GSS_C_REPLAY_FLAG; + if (req_flags & GSS_C_SEQUENCE_FLAG) + flags |= GSS_C_SEQUENCE_FLAG; + if (req_flags & GSS_C_ANON_FLAG) + ; /* XXX */ + if (req_flags & GSS_C_DCE_STYLE) { + /* GSS_C_DCE_STYLE implies GSS_C_MUTUAL_FLAG */ + flags |= GSS_C_DCE_STYLE | GSS_C_MUTUAL_FLAG; + ap_options |= AP_OPTS_MUTUAL_REQUIRED; + } + if (req_flags & GSS_C_IDENTIFY_FLAG) + flags |= GSS_C_IDENTIFY_FLAG; + if (req_flags & GSS_C_EXTENDED_ERROR_FLAG) + flags |= GSS_C_EXTENDED_ERROR_FLAG; + + flags |= GSS_C_CONF_FLAG; + flags |= GSS_C_INTEG_FLAG; + flags |= GSS_C_TRANS_FLAG; + + if (ret_flags) + *ret_flags = flags; + ctx->flags = flags; + ctx->more_flags |= LOCAL; + + ret = _gsskrb5_create_8003_checksum (minor_status, + input_chan_bindings, + flags, + &fwd_data, + &cksum); + krb5_data_free (&fwd_data); + if (ret) + goto failure; + + enctype = ctx->auth_context->keyblock->keytype; + + kret = krb5_build_authenticator (_gsskrb5_context, + ctx->auth_context, + enctype, + cred, + &cksum, + NULL, + &authenticator, + KRB5_KU_AP_REQ_AUTH); + + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + ret = GSS_S_FAILURE; + goto failure; + } + + kret = krb5_build_ap_req (_gsskrb5_context, + enctype, + cred, + ap_options, + authenticator, + &outbuf); + + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + ret = GSS_S_FAILURE; + goto failure; + } + + ret = _gsskrb5_encapsulate (minor_status, &outbuf, output_token, + (u_char *)"\x01\x00", GSS_KRB5_MECHANISM); + if (ret) + goto failure; + + krb5_data_free (&outbuf); + krb5_free_creds(_gsskrb5_context, cred); + free_Checksum(&cksum); + if (initiator_cred_handle == NULL) + krb5_cc_close(_gsskrb5_context, ccache); + + if (flags & GSS_C_MUTUAL_FLAG) { + ctx->state = INITIATOR_WAIT_FOR_MUTAL; + return GSS_S_CONTINUE_NEEDED; + } + + return gsskrb5_initiator_ready(minor_status, ctx); +failure: + if(cred) + krb5_free_creds(_gsskrb5_context, cred); + if (ccache && initiator_cred_handle == NULL) + krb5_cc_close(_gsskrb5_context, ccache); + + return ret; + +} + +static OM_uint32 +repl_mutual + (OM_uint32 * minor_status, + gsskrb5_ctx ctx, + const gss_OID mech_type, + OM_uint32 req_flags, + OM_uint32 time_req, + const gss_channel_bindings_t input_chan_bindings, + const gss_buffer_t input_token, + gss_OID * actual_mech_type, + gss_buffer_t output_token, + OM_uint32 * ret_flags, + OM_uint32 * time_rec + ) +{ + OM_uint32 ret; + krb5_error_code kret; + krb5_data indata; + krb5_ap_rep_enc_part *repl; + int is_cfx = 0; + + output_token->length = 0; + output_token->value = NULL; + + if (actual_mech_type) + *actual_mech_type = GSS_KRB5_MECHANISM; + + if (req_flags & GSS_C_DCE_STYLE) { + /* There is no OID wrapping. */ + indata.length = input_token->length; + indata.data = input_token->value; + } else { + ret = _gsskrb5_decapsulate (minor_status, + input_token, + &indata, + "\x02\x00", + GSS_KRB5_MECHANISM); + if (ret) { + /* XXX - Handle AP_ERROR */ + return ret; + } + } + + kret = krb5_rd_rep (_gsskrb5_context, + ctx->auth_context, + &indata, + &repl); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + krb5_free_ap_rep_enc_part (_gsskrb5_context, + repl); + + _gsskrb5i_is_cfx(ctx, &is_cfx); + if (is_cfx) { + krb5_keyblock *key = NULL; + + kret = krb5_auth_con_getremotesubkey(_gsskrb5_context, + ctx->auth_context, + &key); + if (kret == 0 && key != NULL) { + ctx->more_flags |= ACCEPTOR_SUBKEY; + krb5_free_keyblock (_gsskrb5_context, key); + } + } + + + *minor_status = 0; + if (time_rec) { + ret = _gsskrb5_lifetime_left(minor_status, + ctx->lifetime, + time_rec); + } else { + ret = GSS_S_COMPLETE; + } + if (ret_flags) + *ret_flags = ctx->flags; + + if (req_flags & GSS_C_DCE_STYLE) { + int32_t con_flags; + krb5_data outbuf; + + /* Do don't do sequence number for the mk-rep */ + krb5_auth_con_removeflags(_gsskrb5_context, + ctx->auth_context, + KRB5_AUTH_CONTEXT_DO_SEQUENCE, + &con_flags); + + kret = krb5_mk_rep(_gsskrb5_context, + ctx->auth_context, + &outbuf); + if (kret) { + _gsskrb5_set_error_string (); + *minor_status = kret; + return GSS_S_FAILURE; + } + + output_token->length = outbuf.length; + output_token->value = outbuf.data; + + krb5_auth_con_removeflags(_gsskrb5_context, + ctx->auth_context, + KRB5_AUTH_CONTEXT_DO_SEQUENCE, + NULL); + } + + return gsskrb5_initiator_ready(minor_status, ctx); +} + +/* + * gss_init_sec_context + */ + +OM_uint32 _gsskrb5_init_sec_context +(OM_uint32 * minor_status, + const gss_cred_id_t initiator_cred_handle, + gss_ctx_id_t * context_handle, + const gss_name_t target_name, + const gss_OID mech_type, + OM_uint32 req_flags, + OM_uint32 time_req, + const gss_channel_bindings_t input_chan_bindings, + const gss_buffer_t input_token, + gss_OID * actual_mech_type, + gss_buffer_t output_token, + OM_uint32 * ret_flags, + OM_uint32 * time_rec + ) +{ + gsskrb5_cred cred = (gsskrb5_cred)initiator_cred_handle; + krb5_const_principal name = (krb5_const_principal)target_name; + gsskrb5_ctx ctx; + OM_uint32 ret; + + GSSAPI_KRB5_INIT (); + + output_token->length = 0; + output_token->value = NULL; + + if (context_handle == NULL) { + *minor_status = 0; + return GSS_S_FAILURE | GSS_S_CALL_BAD_STRUCTURE; + } + + if (ret_flags) + *ret_flags = 0; + if (time_rec) + *time_rec = 0; + + if (target_name == GSS_C_NO_NAME) { + if (actual_mech_type) + *actual_mech_type = GSS_C_NO_OID; + *minor_status = 0; + return GSS_S_BAD_NAME; + } + + if (mech_type != GSS_C_NO_OID && + !gss_oid_equal(mech_type, GSS_KRB5_MECHANISM)) + return GSS_S_BAD_MECH; + + if (input_token == GSS_C_NO_BUFFER || input_token->length == 0) { + OM_uint32 ret; + + if (*context_handle != GSS_C_NO_CONTEXT) { + *minor_status = 0; + return GSS_S_FAILURE | GSS_S_CALL_BAD_STRUCTURE; + } + + ret = _gsskrb5_create_ctx(minor_status, + context_handle, + input_chan_bindings, + INITIATOR_START); + if (ret) + return ret; + } + + if (*context_handle == GSS_C_NO_CONTEXT) { + *minor_status = 0; + return GSS_S_FAILURE | GSS_S_CALL_BAD_STRUCTURE; + } + + ctx = (gsskrb5_ctx) *context_handle; + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + + switch (ctx->state) { + case INITIATOR_START: + ret = init_auth(minor_status, + cred, + ctx, + name, + mech_type, + req_flags, + time_req, + input_chan_bindings, + input_token, + actual_mech_type, + output_token, + ret_flags, + time_rec); + break; + case INITIATOR_WAIT_FOR_MUTAL: + ret = repl_mutual(minor_status, + ctx, + mech_type, + req_flags, + time_req, + input_chan_bindings, + input_token, + actual_mech_type, + output_token, + ret_flags, + time_rec); + break; + case INITIATOR_READY: + /* + * If we get there, the caller have called + * gss_init_sec_context() one time too many. + */ + *minor_status = 0; + ret = GSS_S_BAD_STATUS; + break; + default: + *minor_status = 0; + ret = GSS_S_BAD_STATUS; + break; + } + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + /* destroy context in case of error */ + if (GSS_ERROR(ret)) { + OM_uint32 min2; + _gsskrb5_delete_sec_context(&min2, context_handle, GSS_C_NO_BUFFER); + } + + return ret; + +} diff --git a/source4/heimdal/lib/gssapi/krb5/inquire_context.c b/source4/heimdal/lib/gssapi/krb5/inquire_context.c new file mode 100644 index 0000000000..ef43e6852c --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/inquire_context.c @@ -0,0 +1,108 @@ +/* + * Copyright (c) 1997, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: inquire_context.c,v 1.10 2006/10/07 22:15:03 lha Exp $"); + +OM_uint32 _gsskrb5_inquire_context ( + OM_uint32 * minor_status, + const gss_ctx_id_t context_handle, + gss_name_t * src_name, + gss_name_t * targ_name, + OM_uint32 * lifetime_rec, + gss_OID * mech_type, + OM_uint32 * ctx_flags, + int * locally_initiated, + int * open_context + ) +{ + OM_uint32 ret; + gsskrb5_ctx ctx = (gsskrb5_ctx)context_handle; + gss_name_t name; + + if (src_name) + *src_name = GSS_C_NO_NAME; + if (targ_name) + *targ_name = GSS_C_NO_NAME; + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + + if (src_name) { + name = (gss_name_t)ctx->source; + ret = _gsskrb5_duplicate_name (minor_status, name, src_name); + if (ret) + goto failed; + } + + if (targ_name) { + name = (gss_name_t)ctx->target; + ret = _gsskrb5_duplicate_name (minor_status, name, targ_name); + if (ret) + goto failed; + } + + if (lifetime_rec) { + ret = _gsskrb5_lifetime_left(minor_status, + ctx->lifetime, + lifetime_rec); + if (ret) + goto failed; + } + + if (mech_type) + *mech_type = GSS_KRB5_MECHANISM; + + if (ctx_flags) + *ctx_flags = ctx->flags; + + if (locally_initiated) + *locally_initiated = ctx->more_flags & LOCAL; + + if (open_context) + *open_context = ctx->more_flags & OPEN; + + *minor_status = 0; + + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + return GSS_S_COMPLETE; + +failed: + if (src_name) + _gsskrb5_release_name(NULL, src_name); + if (targ_name) + _gsskrb5_release_name(NULL, targ_name); + + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/inquire_cred.c b/source4/heimdal/lib/gssapi/krb5/inquire_cred.c new file mode 100644 index 0000000000..0593729365 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/inquire_cred.c @@ -0,0 +1,178 @@ +/* + * Copyright (c) 1997, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: inquire_cred.c,v 1.12 2006/10/07 22:15:06 lha Exp $"); + +OM_uint32 _gsskrb5_inquire_cred +(OM_uint32 * minor_status, + const gss_cred_id_t cred_handle, + gss_name_t * output_name, + OM_uint32 * lifetime, + gss_cred_usage_t * cred_usage, + gss_OID_set * mechanisms + ) +{ + gss_cred_id_t aqcred_init = GSS_C_NO_CREDENTIAL; + gss_cred_id_t aqcred_accept = GSS_C_NO_CREDENTIAL; + gsskrb5_cred acred = NULL, icred = NULL; + OM_uint32 ret; + + *minor_status = 0; + + if (output_name) + *output_name = NULL; + if (mechanisms) + *mechanisms = GSS_C_NO_OID_SET; + + if (cred_handle == GSS_C_NO_CREDENTIAL) { + ret = _gsskrb5_acquire_cred(minor_status, + GSS_C_NO_NAME, + GSS_C_INDEFINITE, + GSS_C_NO_OID_SET, + GSS_C_ACCEPT, + &aqcred_accept, + NULL, + NULL); + if (ret == GSS_S_COMPLETE) + acred = (gsskrb5_cred)aqcred_accept; + + ret = _gsskrb5_acquire_cred(minor_status, + GSS_C_NO_NAME, + GSS_C_INDEFINITE, + GSS_C_NO_OID_SET, + GSS_C_INITIATE, + &aqcred_init, + NULL, + NULL); + if (ret == GSS_S_COMPLETE) + acred = (gsskrb5_cred)aqcred_init; + + if (icred == NULL && acred == NULL) { + *minor_status = 0; + return GSS_S_NO_CRED; + } + } else + acred = (gsskrb5_cred)cred_handle; + + if (acred) + HEIMDAL_MUTEX_lock(&acred->cred_id_mutex); + if (icred) + HEIMDAL_MUTEX_lock(&icred->cred_id_mutex); + + if (output_name != NULL) { + if (icred && icred->principal != NULL) { + gss_name_t name; + + if (acred) + name = (gss_name_t)acred->principal; + else + name = (gss_name_t)icred->principal; + + ret = _gsskrb5_duplicate_name(minor_status, name, output_name); + if (ret) + goto out; + } else if (acred && acred->usage == GSS_C_ACCEPT) { + krb5_principal princ; + *minor_status = krb5_sname_to_principal(_gsskrb5_context, NULL, + NULL, KRB5_NT_SRV_HST, + &princ); + if (*minor_status) { + ret = GSS_S_FAILURE; + goto out; + } + *output_name = (gss_name_t)princ; + } else { + krb5_principal princ; + *minor_status = krb5_get_default_principal(_gsskrb5_context, + &princ); + if (*minor_status) { + ret = GSS_S_FAILURE; + goto out; + } + *output_name = (gss_name_t)princ; + } + } + if (lifetime != NULL) { + OM_uint32 alife = GSS_C_INDEFINITE, ilife = GSS_C_INDEFINITE; + + if (acred) alife = acred->lifetime; + if (icred) ilife = icred->lifetime; + + ret = _gsskrb5_lifetime_left(minor_status, + min(alife,ilife), + lifetime); + if (ret) + goto out; + } + if (cred_usage != NULL) { + if (acred && icred) + *cred_usage = GSS_C_BOTH; + else if (acred) + *cred_usage = GSS_C_ACCEPT; + else if (icred) + *cred_usage = GSS_C_INITIATE; + else + abort(); + } + + if (mechanisms != NULL) { + ret = _gsskrb5_create_empty_oid_set(minor_status, mechanisms); + if (ret) + goto out; + if (acred) + ret = _gsskrb5_add_oid_set_member(minor_status, + &acred->mechanisms->elements[0], + mechanisms); + if (ret == GSS_S_COMPLETE && icred) + ret = _gsskrb5_add_oid_set_member(minor_status, + &icred->mechanisms->elements[0], + mechanisms); + if (ret) + goto out; + } + ret = GSS_S_COMPLETE; +out: + if (acred) + HEIMDAL_MUTEX_unlock(&acred->cred_id_mutex); + if (icred) + HEIMDAL_MUTEX_unlock(&icred->cred_id_mutex); + + if (aqcred_init != GSS_C_NO_CREDENTIAL) + ret = _gsskrb5_release_cred(minor_status, &aqcred_init); + if (aqcred_accept != GSS_C_NO_CREDENTIAL) + ret = _gsskrb5_release_cred(minor_status, &aqcred_accept); + + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/inquire_cred_by_mech.c b/source4/heimdal/lib/gssapi/krb5/inquire_cred_by_mech.c new file mode 100644 index 0000000000..954a5e3119 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/inquire_cred_by_mech.c @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: inquire_cred_by_mech.c,v 1.4 2006/10/07 22:15:08 lha Exp $"); + +OM_uint32 _gsskrb5_inquire_cred_by_mech ( + OM_uint32 * minor_status, + const gss_cred_id_t cred_handle, + const gss_OID mech_type, + gss_name_t * name, + OM_uint32 * initiator_lifetime, + OM_uint32 * acceptor_lifetime, + gss_cred_usage_t * cred_usage + ) +{ + OM_uint32 ret; + OM_uint32 lifetime; + + if (gss_oid_equal(mech_type, GSS_C_NO_OID) == 0 && + gss_oid_equal(mech_type, GSS_KRB5_MECHANISM) == 0) { + *minor_status = EINVAL; + return GSS_S_BAD_MECH; + } + + ret = _gsskrb5_inquire_cred (minor_status, + cred_handle, + name, + &lifetime, + cred_usage, + NULL); + + if (ret == 0 && cred_handle != GSS_C_NO_CREDENTIAL) { + gsskrb5_cred cred = (gsskrb5_cred)cred_handle; + gss_cred_usage_t usage; + + HEIMDAL_MUTEX_lock(&cred->cred_id_mutex); + usage = cred->usage; + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + + if (initiator_lifetime) { + if (usage == GSS_C_INITIATE || usage == GSS_C_BOTH) + *initiator_lifetime = lifetime; + } + if (acceptor_lifetime) { + if (usage == GSS_C_ACCEPT || usage == GSS_C_BOTH) + *acceptor_lifetime = lifetime; + } + } + + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/inquire_cred_by_oid.c b/source4/heimdal/lib/gssapi/krb5/inquire_cred_by_oid.c new file mode 100644 index 0000000000..26927c740c --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/inquire_cred_by_oid.c @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2004, PADL Software Pty Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of PADL Software nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: inquire_cred_by_oid.c,v 1.4 2006/10/07 22:15:10 lha Exp $"); + +OM_uint32 _gsskrb5_inquire_cred_by_oid + (OM_uint32 * minor_status, + const gss_cred_id_t cred_handle, + const gss_OID desired_object, + gss_buffer_set_t *data_set) +{ + gsskrb5_cred cred = (gsskrb5_cred)cred_handle; + krb5_error_code ret; + gss_buffer_desc buffer; + char *str; + + if (gss_oid_equal(desired_object, GSS_KRB5_COPY_CCACHE_X) == 0) { + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + + HEIMDAL_MUTEX_lock(&cred->cred_id_mutex); + + if (cred->ccache == NULL) { + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + + ret = krb5_cc_get_full_name(_gsskrb5_context, cred->ccache, &str); + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + if (ret) { + *minor_status = ret; + _gsskrb5_set_error_string (); + return GSS_S_FAILURE; + } + + buffer.value = str; + buffer.length = strlen(str); + + ret = gss_add_buffer_set_member(minor_status, &buffer, data_set); + if (ret != GSS_S_COMPLETE) + _gsskrb5_clear_status (); + + free(str); + + *minor_status = 0; + return GSS_S_COMPLETE; +} + diff --git a/source4/heimdal/lib/gssapi/krb5/inquire_mechs_for_name.c b/source4/heimdal/lib/gssapi/krb5/inquire_mechs_for_name.c new file mode 100644 index 0000000000..5c1f082f45 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/inquire_mechs_for_name.c @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: inquire_mechs_for_name.c,v 1.3 2006/10/07 22:15:13 lha Exp $"); + +OM_uint32 _gsskrb5_inquire_mechs_for_name ( + OM_uint32 * minor_status, + const gss_name_t input_name, + gss_OID_set * mech_types + ) +{ + OM_uint32 ret; + + ret = _gsskrb5_create_empty_oid_set(minor_status, mech_types); + if (ret) + return ret; + + ret = _gsskrb5_add_oid_set_member(minor_status, + GSS_KRB5_MECHANISM, + mech_types); + if (ret) + _gsskrb5_release_oid_set(NULL, mech_types); + + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/inquire_names_for_mech.c b/source4/heimdal/lib/gssapi/krb5/inquire_names_for_mech.c new file mode 100644 index 0000000000..5d8aefab1c --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/inquire_names_for_mech.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: inquire_names_for_mech.c,v 1.3 2006/10/07 22:15:15 lha Exp $"); + + +static gss_OID *name_list[] = { + &GSS_C_NT_HOSTBASED_SERVICE, + &GSS_C_NT_USER_NAME, + &GSS_KRB5_NT_PRINCIPAL_NAME, + &GSS_C_NT_EXPORT_NAME, + NULL +}; + +OM_uint32 _gsskrb5_inquire_names_for_mech ( + OM_uint32 * minor_status, + const gss_OID mechanism, + gss_OID_set * name_types + ) +{ + OM_uint32 ret; + int i; + + *minor_status = 0; + + if (gss_oid_equal(mechanism, GSS_KRB5_MECHANISM) == 0 && + gss_oid_equal(mechanism, GSS_C_NULL_OID) == 0) { + *name_types = GSS_C_NO_OID_SET; + return GSS_S_BAD_MECH; + } + + ret = _gsskrb5_create_empty_oid_set(minor_status, name_types); + if (ret != GSS_S_COMPLETE) + return ret; + + for (i = 0; name_list[i] != NULL; i++) { + ret = _gsskrb5_add_oid_set_member(minor_status, + *(name_list[i]), + name_types); + if (ret != GSS_S_COMPLETE) + break; + } + + if (ret != GSS_S_COMPLETE) + _gsskrb5_release_oid_set(NULL, name_types); + + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/inquire_sec_context_by_oid.c b/source4/heimdal/lib/gssapi/krb5/inquire_sec_context_by_oid.c new file mode 100644 index 0000000000..0b46cc5495 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/inquire_sec_context_by_oid.c @@ -0,0 +1,559 @@ +/* + * Copyright (c) 2004, PADL Software Pty Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of PADL Software nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: inquire_sec_context_by_oid.c,v 1.8 2006/10/24 15:55:28 lha Exp $"); + +static int +oid_prefix_equal(gss_OID oid_enc, gss_OID prefix_enc, unsigned *suffix) +{ + int ret; + heim_oid oid; + heim_oid prefix; + + *suffix = 0; + + ret = der_get_oid(oid_enc->elements, oid_enc->length, + &oid, NULL); + if (ret) { + return 0; + } + + ret = der_get_oid(prefix_enc->elements, prefix_enc->length, + &prefix, NULL); + if (ret) { + der_free_oid(&oid); + return 0; + } + + ret = 0; + + if (oid.length - 1 == prefix.length) { + *suffix = oid.components[oid.length - 1]; + oid.length--; + ret = (der_heim_oid_cmp(&oid, &prefix) == 0); + oid.length++; + } + + der_free_oid(&oid); + der_free_oid(&prefix); + + return ret; +} + +static OM_uint32 inquire_sec_context_tkt_flags + (OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + gss_buffer_set_t *data_set) +{ + OM_uint32 tkt_flags; + unsigned char buf[4]; + gss_buffer_desc value; + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + + if (context_handle->ticket == NULL) { + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + _gsskrb5_set_status("No ticket from which to obtain flags"); + *minor_status = EINVAL; + return GSS_S_BAD_MECH; + } + + tkt_flags = TicketFlags2int(context_handle->ticket->ticket.flags); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + _gsskrb5_encode_om_uint32(tkt_flags, buf); + value.length = sizeof(buf); + value.value = buf; + + return gss_add_buffer_set_member(minor_status, + &value, + data_set); +} + +enum keytype { ACCEPTOR_KEY, INITIATOR_KEY, TOKEN_KEY }; + +static OM_uint32 inquire_sec_context_get_subkey + (OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + enum keytype keytype, + gss_buffer_set_t *data_set) +{ + krb5_keyblock *key = NULL; + krb5_storage *sp = NULL; + krb5_data data; + OM_uint32 maj_stat = GSS_S_COMPLETE; + krb5_error_code ret; + + krb5_data_zero(&data); + + sp = krb5_storage_emem(); + if (sp == NULL) { + _gsskrb5_clear_status(); + ret = ENOMEM; + goto out; + } + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + switch(keytype) { + case ACCEPTOR_KEY: + ret = _gsskrb5i_get_acceptor_subkey(context_handle, &key); + if (ret) + _gsskrb5_set_error_string (); + break; + case INITIATOR_KEY: + ret = _gsskrb5i_get_initiator_subkey(context_handle, &key); + if (ret) + _gsskrb5_set_error_string (); + break; + case TOKEN_KEY: + ret = _gsskrb5i_get_token_key(context_handle, &key); + if (ret) + _gsskrb5_set_error_string (); + break; + default: + _gsskrb5_set_status("%d is not a valid subkey type", keytype); + ret = EINVAL; + break; + } + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + if (ret) + goto out; + + ret = krb5_store_keyblock(sp, *key); + krb5_free_keyblock (_gsskrb5_context, key); + if (ret) { + _gsskrb5_set_error_string (); + goto out; + } + + ret = krb5_storage_to_data(sp, &data); + if (ret) { + _gsskrb5_set_error_string (); + goto out; + } + + { + gss_buffer_desc value; + + value.length = data.length; + value.value = data.data; + + maj_stat = gss_add_buffer_set_member(minor_status, + &value, + data_set); + } + +out: + krb5_data_free(&data); + if (sp) + krb5_storage_free(sp); + if (ret) { + *minor_status = ret; + maj_stat = GSS_S_FAILURE; + } + return maj_stat; +} + +static OM_uint32 inquire_sec_context_authz_data + (OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + unsigned ad_type, + gss_buffer_set_t *data_set) +{ + krb5_data data; + gss_buffer_desc ad_data; + OM_uint32 ret; + + *minor_status = 0; + *data_set = GSS_C_NO_BUFFER_SET; + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + if (context_handle->ticket == NULL) { + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + *minor_status = EINVAL; + _gsskrb5_set_status("No ticket to obtain authz data from"); + return GSS_S_NO_CONTEXT; + } + + ret = krb5_ticket_get_authorization_data_type(_gsskrb5_context, + context_handle->ticket, + ad_type, + &data); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + + ad_data.value = data.data; + ad_data.length = data.length; + + ret = gss_add_buffer_set_member(minor_status, + &ad_data, + data_set); + + krb5_data_free(&data); + + return ret; +} + +static OM_uint32 inquire_sec_context_has_updated_spnego + (OM_uint32 *minor_status, + const gsskrb5_ctx context_handle, + gss_buffer_set_t *data_set) +{ + int is_updated = 0; + + *minor_status = 0; + *data_set = GSS_C_NO_BUFFER_SET; + + /* + * For Windows SPNEGO implementations, both the initiator and the + * acceptor are assumed to have been updated if a "newer" [CLAR] or + * different enctype is negotiated for use by the Kerberos GSS-API + * mechanism. + */ + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + _gsskrb5i_is_cfx(context_handle, &is_updated); + if (is_updated == 0) { + krb5_keyblock *acceptor_subkey; + + if (context_handle->more_flags & LOCAL) + acceptor_subkey = context_handle->auth_context->remote_subkey; + else + acceptor_subkey = context_handle->auth_context->local_subkey; + + if (acceptor_subkey != NULL) + is_updated = (acceptor_subkey->keytype != + context_handle->auth_context->keyblock->keytype); + } + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + return is_updated ? GSS_S_COMPLETE : GSS_S_FAILURE; +} + +/* + * + */ + +static OM_uint32 +export_lucid_sec_context_v1(OM_uint32 *minor_status, + gsskrb5_ctx context_handle, + gss_buffer_set_t *data_set) +{ + krb5_storage *sp = NULL; + OM_uint32 major_status = GSS_S_COMPLETE; + krb5_error_code ret; + krb5_keyblock *key = NULL; + int32_t number; + int is_cfx; + krb5_data data; + + *minor_status = 0; + + GSSAPI_KRB5_INIT (); + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + + _gsskrb5i_is_cfx(context_handle, &is_cfx); + + sp = krb5_storage_emem(); + if (sp == NULL) { + _gsskrb5_clear_status(); + ret = ENOMEM; + goto out; + } + + ret = krb5_store_int32(sp, 1); + if (ret) goto out; + ret = krb5_store_int32(sp, (context_handle->more_flags & LOCAL) ? 1 : 0); + if (ret) goto out; + ret = krb5_store_int32(sp, context_handle->lifetime); + if (ret) goto out; + krb5_auth_con_getlocalseqnumber (_gsskrb5_context, + context_handle->auth_context, + &number); + ret = krb5_store_uint32(sp, (uint32_t)0); /* store top half as zero */ + ret = krb5_store_uint32(sp, (uint32_t)number); + krb5_auth_getremoteseqnumber (_gsskrb5_context, + context_handle->auth_context, + &number); + ret = krb5_store_uint32(sp, (uint32_t)0); /* store top half as zero */ + ret = krb5_store_uint32(sp, (uint32_t)number); + ret = krb5_store_int32(sp, (is_cfx) ? 1 : 0); + if (ret) goto out; + + ret = _gsskrb5i_get_token_key(context_handle, &key); + if (ret) goto out; + + if (is_cfx == 0) { + int sign_alg, seal_alg; + + switch (key->keytype) { + case ETYPE_DES_CBC_CRC: + case ETYPE_DES_CBC_MD4: + case ETYPE_DES_CBC_MD5: + sign_alg = 0; + seal_alg = 0; + break; + case ETYPE_DES3_CBC_MD5: + case ETYPE_DES3_CBC_SHA1: + sign_alg = 4; + seal_alg = 2; + break; + case ETYPE_ARCFOUR_HMAC_MD5: + case ETYPE_ARCFOUR_HMAC_MD5_56: + sign_alg = 17; + seal_alg = 16; + break; + default: + sign_alg = -1; + seal_alg = -1; + break; + } + ret = krb5_store_int32(sp, sign_alg); + if (ret) goto out; + ret = krb5_store_int32(sp, seal_alg); + if (ret) goto out; + /* ctx_key */ + ret = krb5_store_keyblock(sp, *key); + if (ret) goto out; + } else { + int subkey_p = (context_handle->more_flags & ACCEPTOR_SUBKEY) ? 1 : 0; + + /* have_acceptor_subkey */ + ret = krb5_store_int32(sp, subkey_p); + if (ret) goto out; + /* ctx_key */ + ret = krb5_store_keyblock(sp, *key); + if (ret) goto out; + /* acceptor_subkey */ + if (subkey_p) { + ret = krb5_store_keyblock(sp, *key); + if (ret) goto out; + } + } + ret = krb5_storage_to_data(sp, &data); + if (ret) goto out; + + { + gss_buffer_desc ad_data; + + ad_data.value = data.data; + ad_data.length = data.length; + + ret = gss_add_buffer_set_member(minor_status, &ad_data, data_set); + krb5_data_free(&data); + if (ret) + goto out; + } + +out: + if (key) + krb5_free_keyblock (_gsskrb5_context, key); + if (sp) + krb5_storage_free(sp); + if (ret) { + *minor_status = ret; + major_status = GSS_S_FAILURE; + } + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return major_status; +} + +static OM_uint32 +get_authtime(OM_uint32 *minor_status, + gsskrb5_ctx ctx, + gss_buffer_set_t *data_set) + +{ + gss_buffer_desc value; + OM_uint32 authtime; + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + if (ctx->ticket == NULL) { + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + _gsskrb5_set_status("No ticket to obtain auth time from"); + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + + authtime = ctx->ticket->ticket.authtime; + + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + value.length = 4; + value.value = malloc(value.length); + if (!value.value) { + _gsskrb5_clear_status(); + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + _gsskrb5_encode_om_uint32(authtime, value.value); + + return gss_add_buffer_set_member(minor_status, + &value, + data_set); +} + + +static OM_uint32 +get_service_keyblock + (OM_uint32 *minor_status, + gsskrb5_ctx ctx, + gss_buffer_set_t *data_set) +{ + krb5_storage *sp = NULL; + krb5_data data; + OM_uint32 maj_stat = GSS_S_COMPLETE; + krb5_error_code ret = EINVAL; + + sp = krb5_storage_emem(); + if (sp == NULL) { + _gsskrb5_clear_status(); + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + if (ctx->service_keyblock == NULL) { + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + _gsskrb5_set_status("No service keyblock on gssapi context"); + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + + krb5_data_zero(&data); + + ret = krb5_store_keyblock(sp, *ctx->service_keyblock); + + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + if (ret) + goto out; + + ret = krb5_storage_to_data(sp, &data); + if (ret) + goto out; + + { + gss_buffer_desc value; + + value.length = data.length; + value.value = data.data; + + maj_stat = gss_add_buffer_set_member(minor_status, + &value, + data_set); + } + +out: + krb5_data_free(&data); + if (sp) + krb5_storage_free(sp); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + maj_stat = GSS_S_FAILURE; + } + return maj_stat; +} +/* + * + */ + +OM_uint32 _gsskrb5_inquire_sec_context_by_oid + (OM_uint32 *minor_status, + const gss_ctx_id_t context_handle, + const gss_OID desired_object, + gss_buffer_set_t *data_set) +{ + const gsskrb5_ctx ctx = (const gsskrb5_ctx) context_handle; + unsigned suffix; + + if (ctx == NULL) { + *minor_status = EINVAL; + return GSS_S_NO_CONTEXT; + } + + if (gss_oid_equal(desired_object, GSS_KRB5_GET_TKT_FLAGS_X)) { + return inquire_sec_context_tkt_flags(minor_status, + ctx, + data_set); + } else if (gss_oid_equal(desired_object, GSS_C_PEER_HAS_UPDATED_SPNEGO)) { + return inquire_sec_context_has_updated_spnego(minor_status, + ctx, + data_set); + } else if (gss_oid_equal(desired_object, GSS_KRB5_GET_SUBKEY_X)) { + return inquire_sec_context_get_subkey(minor_status, + ctx, + TOKEN_KEY, + data_set); + } else if (gss_oid_equal(desired_object, GSS_KRB5_GET_INITIATOR_SUBKEY_X)) { + return inquire_sec_context_get_subkey(minor_status, + ctx, + INITIATOR_KEY, + data_set); + } else if (gss_oid_equal(desired_object, GSS_KRB5_GET_ACCEPTOR_SUBKEY_X)) { + return inquire_sec_context_get_subkey(minor_status, + ctx, + ACCEPTOR_KEY, + data_set); + } else if (gss_oid_equal(desired_object, GSS_KRB5_GET_AUTHTIME_X)) { + return get_authtime(minor_status, ctx, data_set); + } else if (oid_prefix_equal(desired_object, + GSS_KRB5_EXTRACT_AUTHZ_DATA_FROM_SEC_CONTEXT_X, + &suffix)) { + return inquire_sec_context_authz_data(minor_status, + ctx, + suffix, + data_set); + } else if (oid_prefix_equal(desired_object, + GSS_KRB5_EXPORT_LUCID_CONTEXT_X, + &suffix)) { + if (suffix == 1) + return export_lucid_sec_context_v1(minor_status, + ctx, + data_set); + *minor_status = 0; + return GSS_S_FAILURE; + } else if (gss_oid_equal(desired_object, GSS_KRB5_GET_SERVICE_KEYBLOCK_X)) { + return get_service_keyblock(minor_status, ctx, data_set); + } else { + *minor_status = 0; + return GSS_S_FAILURE; + } +} + diff --git a/source4/heimdal/lib/gssapi/krb5/process_context_token.c b/source4/heimdal/lib/gssapi/krb5/process_context_token.c new file mode 100644 index 0000000000..99568c9dd0 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/process_context_token.c @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: process_context_token.c,v 1.4 2006/10/07 22:15:19 lha Exp $"); + +OM_uint32 _gsskrb5_process_context_token ( + OM_uint32 *minor_status, + const gss_ctx_id_t context_handle, + const gss_buffer_t token_buffer + ) +{ + OM_uint32 ret = GSS_S_FAILURE; + gss_buffer_desc empty_buffer; + gss_qop_t qop_state; + + empty_buffer.length = 0; + empty_buffer.value = NULL; + + qop_state = GSS_C_QOP_DEFAULT; + + ret = _gsskrb5_verify_mic_internal(minor_status, + (gsskrb5_ctx)context_handle, + token_buffer, &empty_buffer, + GSS_C_QOP_DEFAULT, "\x01\x02"); + + if (ret == GSS_S_COMPLETE) + ret = _gsskrb5_delete_sec_context(minor_status, + rk_UNCONST(&context_handle), + GSS_C_NO_BUFFER); + if (ret == GSS_S_COMPLETE) + *minor_status = 0; + + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/release_buffer.c b/source4/heimdal/lib/gssapi/krb5/release_buffer.c new file mode 100644 index 0000000000..b62ad02117 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/release_buffer.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 1997 - 2000, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: release_buffer.c,v 1.7 2006/10/07 22:15:22 lha Exp $"); + +OM_uint32 _gsskrb5_release_buffer + (OM_uint32 * minor_status, + gss_buffer_t buffer + ) +{ + *minor_status = 0; + free (buffer->value); + buffer->value = NULL; + buffer->length = 0; + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/release_cred.c b/source4/heimdal/lib/gssapi/krb5/release_cred.c new file mode 100644 index 0000000000..662461ccfd --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/release_cred.c @@ -0,0 +1,76 @@ +/* + * Copyright (c) 1997-2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: release_cred.c,v 1.13 2006/10/07 22:15:24 lha Exp $"); + +OM_uint32 _gsskrb5_release_cred + (OM_uint32 * minor_status, + gss_cred_id_t * cred_handle + ) +{ + gsskrb5_cred cred; + + *minor_status = 0; + + if (*cred_handle == NULL) + return GSS_S_COMPLETE; + + cred = (gsskrb5_cred)*cred_handle; + *cred_handle = GSS_C_NO_CREDENTIAL; + + GSSAPI_KRB5_INIT (); + + HEIMDAL_MUTEX_lock(&cred->cred_id_mutex); + + if (cred->principal != NULL) + krb5_free_principal(_gsskrb5_context, cred->principal); + if (cred->keytab != NULL) + krb5_kt_close(_gsskrb5_context, cred->keytab); + if (cred->ccache != NULL) { + const krb5_cc_ops *ops; + ops = krb5_cc_get_ops(_gsskrb5_context, cred->ccache); + if (cred->cred_flags & GSS_CF_DESTROY_CRED_ON_RELEASE) + krb5_cc_destroy(_gsskrb5_context, cred->ccache); + else + krb5_cc_close(_gsskrb5_context, cred->ccache); + } + _gsskrb5_release_oid_set(NULL, &cred->mechanisms); + HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex); + HEIMDAL_MUTEX_destroy(&cred->cred_id_mutex); + memset(cred, 0, sizeof(*cred)); + free(cred); + return GSS_S_COMPLETE; +} + diff --git a/source4/heimdal/lib/gssapi/krb5/release_name.c b/source4/heimdal/lib/gssapi/krb5/release_name.c new file mode 100644 index 0000000000..a92ad939a5 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/release_name.c @@ -0,0 +1,55 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: release_name.c,v 1.10 2006/10/07 22:15:26 lha Exp $"); + +OM_uint32 _gsskrb5_release_name + (OM_uint32 * minor_status, + gss_name_t * input_name + ) +{ + krb5_principal name = (krb5_principal)*input_name; + + GSSAPI_KRB5_INIT (); + + if (minor_status) + *minor_status = 0; + + *input_name = GSS_C_NO_NAME; + + krb5_free_principal(_gsskrb5_context, name); + + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/release_oid_set.c b/source4/heimdal/lib/gssapi/krb5/release_oid_set.c new file mode 100644 index 0000000000..a9f79a3082 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/release_oid_set.c @@ -0,0 +1,49 @@ +/* + * Copyright (c) 1997 - 2000, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: release_oid_set.c,v 1.7 2006/10/07 22:15:30 lha Exp $"); + +OM_uint32 _gsskrb5_release_oid_set + (OM_uint32 * minor_status, + gss_OID_set * set + ) +{ + if (minor_status) + *minor_status = 0; + free ((*set)->elements); + free (*set); + *set = GSS_C_NO_OID_SET; + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/sequence.c b/source4/heimdal/lib/gssapi/krb5/sequence.c new file mode 100755 index 0000000000..3014edd04d --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/sequence.c @@ -0,0 +1,294 @@ +/* + * Copyright (c) 2003 - 2006 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: sequence.c,v 1.8 2006/10/07 22:15:32 lha Exp $"); + +#define DEFAULT_JITTER_WINDOW 20 + +struct gss_msg_order { + OM_uint32 flags; + OM_uint32 start; + OM_uint32 length; + OM_uint32 jitter_window; + OM_uint32 first_seq; + OM_uint32 elem[1]; +}; + + +/* + * + */ + +static OM_uint32 +msg_order_alloc(OM_uint32 *minor_status, + struct gss_msg_order **o, + OM_uint32 jitter_window) +{ + size_t len; + + len = jitter_window * sizeof((*o)->elem[0]); + len += sizeof(**o); + len -= sizeof((*o)->elem[0]); + + *o = calloc(1, len); + if (*o == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + *minor_status = 0; + return GSS_S_COMPLETE; +} + +/* + * + */ + +OM_uint32 +_gssapi_msg_order_create(OM_uint32 *minor_status, + struct gss_msg_order **o, + OM_uint32 flags, + OM_uint32 seq_num, + OM_uint32 jitter_window, + int use_64) +{ + OM_uint32 ret; + + if (jitter_window == 0) + jitter_window = DEFAULT_JITTER_WINDOW; + + ret = msg_order_alloc(minor_status, o, jitter_window); + if(ret != GSS_S_COMPLETE) + return ret; + + (*o)->flags = flags; + (*o)->length = 0; + (*o)->first_seq = seq_num; + (*o)->jitter_window = jitter_window; + (*o)->elem[0] = seq_num - 1; + + *minor_status = 0; + return GSS_S_COMPLETE; +} + +OM_uint32 +_gssapi_msg_order_destroy(struct gss_msg_order **m) +{ + free(*m); + *m = NULL; + return GSS_S_COMPLETE; +} + +static void +elem_set(struct gss_msg_order *o, unsigned int slot, OM_uint32 val) +{ + o->elem[slot % o->jitter_window] = val; +} + +static void +elem_insert(struct gss_msg_order *o, + unsigned int after_slot, + OM_uint32 seq_num) +{ + assert(o->jitter_window > after_slot); + + if (o->length > after_slot) + memmove(&o->elem[after_slot + 1], &o->elem[after_slot], + (o->length - after_slot - 1) * sizeof(o->elem[0])); + + elem_set(o, after_slot, seq_num); + + if (o->length < o->jitter_window) + o->length++; +} + +/* rule 1: expected sequence number */ +/* rule 2: > expected sequence number */ +/* rule 3: seqnum < seqnum(first) */ +/* rule 4+5: seqnum in [seqnum(first),seqnum(last)] */ + +OM_uint32 +_gssapi_msg_order_check(struct gss_msg_order *o, OM_uint32 seq_num) +{ + OM_uint32 r; + int i; + + if (o == NULL) + return GSS_S_COMPLETE; + + if ((o->flags & (GSS_C_REPLAY_FLAG|GSS_C_SEQUENCE_FLAG)) == 0) + return GSS_S_COMPLETE; + + /* check if the packet is the next in order */ + if (o->elem[0] == seq_num - 1) { + elem_insert(o, 0, seq_num); + return GSS_S_COMPLETE; + } + + r = (o->flags & (GSS_C_REPLAY_FLAG|GSS_C_SEQUENCE_FLAG))==GSS_C_REPLAY_FLAG; + + /* sequence number larger then largest sequence number + * or smaller then the first sequence number */ + if (seq_num > o->elem[0] + || seq_num < o->first_seq + || o->length == 0) + { + elem_insert(o, 0, seq_num); + if (r) { + return GSS_S_COMPLETE; + } else { + return GSS_S_GAP_TOKEN; + } + } + + assert(o->length > 0); + + /* sequence number smaller the first sequence number */ + if (seq_num < o->elem[o->length - 1]) { + if (r) + return(GSS_S_OLD_TOKEN); + else + return(GSS_S_UNSEQ_TOKEN); + } + + if (seq_num == o->elem[o->length - 1]) { + return GSS_S_DUPLICATE_TOKEN; + } + + for (i = 0; i < o->length - 1; i++) { + if (o->elem[i] == seq_num) + return GSS_S_DUPLICATE_TOKEN; + if (o->elem[i + 1] < seq_num && o->elem[i] < seq_num) { + elem_insert(o, i, seq_num); + if (r) + return GSS_S_COMPLETE; + else + return GSS_S_UNSEQ_TOKEN; + } + } + + return GSS_S_FAILURE; +} + +OM_uint32 +_gssapi_msg_order_f(OM_uint32 flags) +{ + return flags & (GSS_C_SEQUENCE_FLAG|GSS_C_REPLAY_FLAG); +} + +/* + * Translate `o` into inter-process format and export in to `sp'. + */ + +krb5_error_code +_gssapi_msg_order_export(krb5_storage *sp, struct gss_msg_order *o) +{ + krb5_error_code kret; + OM_uint32 i; + + kret = krb5_store_int32(sp, o->flags); + if (kret) + return kret; + kret = krb5_store_int32(sp, o->start); + if (kret) + return kret; + kret = krb5_store_int32(sp, o->length); + if (kret) + return kret; + kret = krb5_store_int32(sp, o->jitter_window); + if (kret) + return kret; + kret = krb5_store_int32(sp, o->first_seq); + if (kret) + return kret; + + for (i = 0; i < o->jitter_window; i++) { + kret = krb5_store_int32(sp, o->elem[i]); + if (kret) + return kret; + } + + return 0; +} + +OM_uint32 +_gssapi_msg_order_import(OM_uint32 *minor_status, + krb5_storage *sp, + struct gss_msg_order **o) +{ + OM_uint32 ret; + krb5_error_code kret; + int32_t i, flags, start, length, jitter_window, first_seq; + + kret = krb5_ret_int32(sp, &flags); + if (kret) + goto failed; + ret = krb5_ret_int32(sp, &start); + if (kret) + goto failed; + ret = krb5_ret_int32(sp, &length); + if (kret) + goto failed; + ret = krb5_ret_int32(sp, &jitter_window); + if (kret) + goto failed; + ret = krb5_ret_int32(sp, &first_seq); + if (kret) + goto failed; + + ret = msg_order_alloc(minor_status, o, jitter_window); + if (ret != GSS_S_COMPLETE) + return ret; + + (*o)->flags = flags; + (*o)->start = start; + (*o)->length = length; + (*o)->jitter_window = jitter_window; + (*o)->first_seq = first_seq; + + for( i = 0; i < jitter_window; i++ ) { + kret = krb5_ret_int32(sp, (int32_t*)&((*o)->elem[i])); + if (kret) + goto failed; + } + + *minor_status = 0; + return GSS_S_COMPLETE; + +failed: + _gssapi_msg_order_destroy(o); + *minor_status = kret; + return GSS_S_FAILURE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/set_cred_option.c b/source4/heimdal/lib/gssapi/krb5/set_cred_option.c new file mode 100644 index 0000000000..5807ef0166 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/set_cred_option.c @@ -0,0 +1,152 @@ +/* + * Copyright (c) 2004, PADL Software Pty Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of PADL Software nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: set_cred_option.c,v 1.4 2006/10/24 20:14:13 lha Exp $"); + +static gss_OID_desc gss_krb5_import_cred_x_oid_desc = +{9, (void *)"\x2b\x06\x01\x04\x01\xa9\x4a\x13\x04"}; /* XXX */ + +gss_OID GSS_KRB5_IMPORT_CRED_X = &gss_krb5_import_cred_x_oid_desc; + +static OM_uint32 +import_cred(OM_uint32 *minor_status, + gss_cred_id_t *cred_handle, + const gss_buffer_t value) +{ + OM_uint32 major_stat; + krb5_error_code ret; + krb5_principal keytab_principal = NULL; + krb5_keytab keytab = NULL; + krb5_storage *sp = NULL; + krb5_ccache id = NULL; + char *str; + + if (cred_handle == NULL || *cred_handle != GSS_C_NO_CREDENTIAL) { + *minor_status = 0; + return GSS_S_FAILURE; + } + + sp = krb5_storage_from_mem(value->value, value->length); + if (sp == NULL) { + *minor_status = 0; + return GSS_S_FAILURE; + } + + /* credential cache name */ + ret = krb5_ret_string(sp, &str); + if (ret) { + *minor_status = ret; + major_stat = GSS_S_FAILURE; + goto out; + } + if (str[0]) { + ret = krb5_cc_resolve(_gsskrb5_context, str, &id); + if (ret) { + *minor_status = ret; + major_stat = GSS_S_FAILURE; + goto out; + } + } + free(str); + str = NULL; + + /* keytab principal name */ + ret = krb5_ret_string(sp, &str); + if (ret == 0 && str[0]) + ret = krb5_parse_name(_gsskrb5_context, str, &keytab_principal); + if (ret) { + *minor_status = ret; + major_stat = GSS_S_FAILURE; + goto out; + } + free(str); + str = NULL; + + /* keytab principal */ + ret = krb5_ret_string(sp, &str); + if (ret) { + *minor_status = ret; + major_stat = GSS_S_FAILURE; + goto out; + } + if (str[0]) { + ret = krb5_kt_resolve(_gsskrb5_context, str, &keytab); + if (ret) { + *minor_status = ret; + major_stat = GSS_S_FAILURE; + goto out; + } + } + free(str); + str = NULL; + + major_stat = _gsskrb5_import_cred(minor_status, id, keytab_principal, + keytab, cred_handle); +out: + if (id) + krb5_cc_close(_gsskrb5_context, id); + if (keytab_principal) + krb5_free_principal(_gsskrb5_context, keytab_principal); + if (keytab) + krb5_kt_close(_gsskrb5_context, keytab); + if (str) + free(str); + if (sp) + krb5_storage_free(sp); + + return major_stat; +} + + +OM_uint32 +_gsskrb5_set_cred_option + (OM_uint32 *minor_status, + gss_cred_id_t *cred_handle, + const gss_OID desired_object, + const gss_buffer_t value) +{ + GSSAPI_KRB5_INIT (); + + if (value == GSS_C_NO_BUFFER) { + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + + if (gss_oid_equal(desired_object, GSS_KRB5_IMPORT_CRED_X)) { + return import_cred(minor_status, cred_handle, value); + } + + *minor_status = EINVAL; + return GSS_S_FAILURE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/set_sec_context_option.c b/source4/heimdal/lib/gssapi/krb5/set_sec_context_option.c new file mode 100644 index 0000000000..67f5e8e722 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/set_sec_context_option.c @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2004, PADL Software Pty Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of PADL Software nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * glue routine for _gsskrb5_inquire_sec_context_by_oid + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: set_sec_context_option.c,v 1.6 2006/10/20 18:58:22 lha Exp $"); + +static OM_uint32 +get_bool(OM_uint32 *minor_status, + const gss_buffer_t value, + int *flag) +{ + if (value->value == NULL || value->length != 1) { + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + *flag = *((const char *)value->value) != 0; + return GSS_S_COMPLETE; +} + +OM_uint32 +_gsskrb5_set_sec_context_option + (OM_uint32 *minor_status, + gss_ctx_id_t *context_handle, + const gss_OID desired_object, + const gss_buffer_t value) +{ + OM_uint32 maj_stat; + + GSSAPI_KRB5_INIT (); + + if (value == GSS_C_NO_BUFFER) { + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + + if (gss_oid_equal(desired_object, GSS_KRB5_COMPAT_DES3_MIC_X)) { + gsskrb5_ctx ctx; + int flag; + + if (*context_handle == GSS_C_NO_CONTEXT) { + *minor_status = EINVAL; + return GSS_S_NO_CONTEXT; + } + + maj_stat = get_bool(minor_status, value, &flag); + if (maj_stat != GSS_S_COMPLETE) + return maj_stat; + + ctx = (gsskrb5_ctx)*context_handle; + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + if (flag) + ctx->more_flags |= COMPAT_OLD_DES3; + else + ctx->more_flags &= ~COMPAT_OLD_DES3; + ctx->more_flags |= COMPAT_OLD_DES3_SELECTED; + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + return GSS_S_COMPLETE; + } else if (gss_oid_equal(desired_object, GSS_KRB5_SET_DNS_CANONICALIZE_X)) { + int flag; + + maj_stat = get_bool(minor_status, value, &flag); + if (maj_stat != GSS_S_COMPLETE) + return maj_stat; + + krb5_set_dns_canonicalize_hostname(_gsskrb5_context, flag); + return GSS_S_COMPLETE; + + } else if (gss_oid_equal(desired_object, GSS_KRB5_REGISTER_ACCEPTOR_IDENTITY_X)) { + char *str; + + if (value == NULL || value->length == 0) { + str = NULL; + } else { + str = malloc(value->length + 1); + if (str) { + *minor_status = 0; + return GSS_S_UNAVAILABLE; + } + memcpy(str, value->value, value->length); + str[value->length] = '\0'; + } + + _gsskrb5_register_acceptor_identity(str); + free(str); + + *minor_status = 0; + return GSS_S_COMPLETE; + + } else if (gss_oid_equal(desired_object, GSS_KRB5_SEND_TO_KDC_X)) { + + if (value == NULL || value->length == 0) { + krb5_set_send_to_kdc_func(_gsskrb5_context, NULL, NULL); + } else { + struct gsskrb5_send_to_kdc c; + + if (value->length != sizeof(c)) { + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + memcpy(&c, value->value, sizeof(c)); + krb5_set_send_to_kdc_func(_gsskrb5_context, + (krb5_send_to_kdc_func)c.func, + c.ptr); + } + + *minor_status = 0; + return GSS_S_COMPLETE; + } + + + *minor_status = EINVAL; + return GSS_S_FAILURE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/test_oid_set_member.c b/source4/heimdal/lib/gssapi/krb5/test_oid_set_member.c new file mode 100644 index 0000000000..5a0ac4418f --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/test_oid_set_member.c @@ -0,0 +1,55 @@ +/* + * Copyright (c) 1997, 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: test_oid_set_member.c,v 1.7 2006/10/07 22:15:50 lha Exp $"); + +OM_uint32 _gsskrb5_test_oid_set_member + (OM_uint32 * minor_status, + const gss_OID member, + const gss_OID_set set, + int * present + ) +{ + size_t i; + + *minor_status = 0; + *present = 0; + for (i = 0; i < set->count; ++i) + if (gss_oid_equal(member, &set->elements[i]) != 0) { + *present = 1; + break; + } + return GSS_S_COMPLETE; +} diff --git a/source4/heimdal/lib/gssapi/krb5/unwrap.c b/source4/heimdal/lib/gssapi/krb5/unwrap.c new file mode 100644 index 0000000000..758390080c --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/unwrap.c @@ -0,0 +1,416 @@ +/* + * Copyright (c) 1997 - 2004 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: unwrap.c,v 1.38 2006/10/18 15:59:28 lha Exp $"); + +static OM_uint32 +unwrap_des + (OM_uint32 * minor_status, + const gsskrb5_ctx context_handle, + const gss_buffer_t input_message_buffer, + gss_buffer_t output_message_buffer, + int * conf_state, + gss_qop_t * qop_state, + krb5_keyblock *key + ) +{ + u_char *p, *seq; + size_t len; + MD5_CTX md5; + u_char hash[16]; + DES_key_schedule schedule; + DES_cblock deskey; + DES_cblock zero; + int i; + uint32_t seq_number; + size_t padlength; + OM_uint32 ret; + int cstate; + int cmp; + + p = input_message_buffer->value; + ret = _gsskrb5_verify_header (&p, + input_message_buffer->length, + "\x02\x01", + GSS_KRB5_MECHANISM); + if (ret) + return ret; + + if (memcmp (p, "\x00\x00", 2) != 0) + return GSS_S_BAD_SIG; + p += 2; + if (memcmp (p, "\x00\x00", 2) == 0) { + cstate = 1; + } else if (memcmp (p, "\xFF\xFF", 2) == 0) { + cstate = 0; + } else + return GSS_S_BAD_MIC; + p += 2; + if(conf_state != NULL) + *conf_state = cstate; + if (memcmp (p, "\xff\xff", 2) != 0) + return GSS_S_DEFECTIVE_TOKEN; + p += 2; + p += 16; + + len = p - (u_char *)input_message_buffer->value; + + if(cstate) { + /* decrypt data */ + memcpy (&deskey, key->keyvalue.data, sizeof(deskey)); + + for (i = 0; i < sizeof(deskey); ++i) + deskey[i] ^= 0xf0; + DES_set_key (&deskey, &schedule); + memset (&zero, 0, sizeof(zero)); + DES_cbc_encrypt ((void *)p, + (void *)p, + input_message_buffer->length - len, + &schedule, + &zero, + DES_DECRYPT); + + memset (deskey, 0, sizeof(deskey)); + memset (&schedule, 0, sizeof(schedule)); + } + /* check pad */ + ret = _gssapi_verify_pad(input_message_buffer, + input_message_buffer->length - len, + &padlength); + if (ret) + return ret; + + MD5_Init (&md5); + MD5_Update (&md5, p - 24, 8); + MD5_Update (&md5, p, input_message_buffer->length - len); + MD5_Final (hash, &md5); + + memset (&zero, 0, sizeof(zero)); + memcpy (&deskey, key->keyvalue.data, sizeof(deskey)); + DES_set_key (&deskey, &schedule); + DES_cbc_cksum ((void *)hash, (void *)hash, sizeof(hash), + &schedule, &zero); + if (memcmp (p - 8, hash, 8) != 0) + return GSS_S_BAD_MIC; + + /* verify sequence number */ + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + + p -= 16; + DES_set_key (&deskey, &schedule); + DES_cbc_encrypt ((void *)p, (void *)p, 8, + &schedule, (DES_cblock *)hash, DES_DECRYPT); + + memset (deskey, 0, sizeof(deskey)); + memset (&schedule, 0, sizeof(schedule)); + + seq = p; + _gsskrb5_decode_om_uint32(seq, &seq_number); + + if (context_handle->more_flags & LOCAL) + cmp = memcmp(&seq[4], "\xff\xff\xff\xff", 4); + else + cmp = memcmp(&seq[4], "\x00\x00\x00\x00", 4); + + if (cmp != 0) { + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return GSS_S_BAD_MIC; + } + + ret = _gssapi_msg_order_check(context_handle->order, seq_number); + if (ret) { + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return ret; + } + + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + /* copy out data */ + + output_message_buffer->length = input_message_buffer->length + - len - padlength - 8; + output_message_buffer->value = malloc(output_message_buffer->length); + if(output_message_buffer->length != 0 && output_message_buffer->value == NULL) + return GSS_S_FAILURE; + memcpy (output_message_buffer->value, + p + 24, + output_message_buffer->length); + return GSS_S_COMPLETE; +} + +static OM_uint32 +unwrap_des3 + (OM_uint32 * minor_status, + const gsskrb5_ctx context_handle, + const gss_buffer_t input_message_buffer, + gss_buffer_t output_message_buffer, + int * conf_state, + gss_qop_t * qop_state, + krb5_keyblock *key + ) +{ + u_char *p; + size_t len; + u_char *seq; + krb5_data seq_data; + u_char cksum[20]; + uint32_t seq_number; + size_t padlength; + OM_uint32 ret; + int cstate; + krb5_crypto crypto; + Checksum csum; + int cmp; + + p = input_message_buffer->value; + ret = _gsskrb5_verify_header (&p, + input_message_buffer->length, + "\x02\x01", + GSS_KRB5_MECHANISM); + if (ret) + return ret; + + if (memcmp (p, "\x04\x00", 2) != 0) /* HMAC SHA1 DES3_KD */ + return GSS_S_BAD_SIG; + p += 2; + if (memcmp (p, "\x02\x00", 2) == 0) { + cstate = 1; + } else if (memcmp (p, "\xff\xff", 2) == 0) { + cstate = 0; + } else + return GSS_S_BAD_MIC; + p += 2; + if(conf_state != NULL) + *conf_state = cstate; + if (memcmp (p, "\xff\xff", 2) != 0) + return GSS_S_DEFECTIVE_TOKEN; + p += 2; + p += 28; + + len = p - (u_char *)input_message_buffer->value; + + if(cstate) { + /* decrypt data */ + krb5_data tmp; + + ret = krb5_crypto_init(_gsskrb5_context, key, + ETYPE_DES3_CBC_NONE, &crypto); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + ret = krb5_decrypt(_gsskrb5_context, crypto, KRB5_KU_USAGE_SEAL, + p, input_message_buffer->length - len, &tmp); + krb5_crypto_destroy(_gsskrb5_context, crypto); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + assert (tmp.length == input_message_buffer->length - len); + + memcpy (p, tmp.data, tmp.length); + krb5_data_free(&tmp); + } + /* check pad */ + ret = _gssapi_verify_pad(input_message_buffer, + input_message_buffer->length - len, + &padlength); + if (ret) + return ret; + + /* verify sequence number */ + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + + p -= 28; + + ret = krb5_crypto_init(_gsskrb5_context, key, + ETYPE_DES3_CBC_NONE, &crypto); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return GSS_S_FAILURE; + } + { + DES_cblock ivec; + + memcpy(&ivec, p + 8, 8); + ret = krb5_decrypt_ivec (_gsskrb5_context, + crypto, + KRB5_KU_USAGE_SEQ, + p, 8, &seq_data, + &ivec); + } + krb5_crypto_destroy (_gsskrb5_context, crypto); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return GSS_S_FAILURE; + } + if (seq_data.length != 8) { + krb5_data_free (&seq_data); + *minor_status = 0; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return GSS_S_BAD_MIC; + } + + seq = seq_data.data; + _gsskrb5_decode_om_uint32(seq, &seq_number); + + if (context_handle->more_flags & LOCAL) + cmp = memcmp(&seq[4], "\xff\xff\xff\xff", 4); + else + cmp = memcmp(&seq[4], "\x00\x00\x00\x00", 4); + + krb5_data_free (&seq_data); + if (cmp != 0) { + *minor_status = 0; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return GSS_S_BAD_MIC; + } + + ret = _gssapi_msg_order_check(context_handle->order, seq_number); + if (ret) { + *minor_status = 0; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return ret; + } + + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + /* verify checksum */ + + memcpy (cksum, p + 8, 20); + + memcpy (p + 20, p - 8, 8); + + csum.cksumtype = CKSUMTYPE_HMAC_SHA1_DES3; + csum.checksum.length = 20; + csum.checksum.data = cksum; + + ret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + + ret = krb5_verify_checksum (_gsskrb5_context, crypto, + KRB5_KU_USAGE_SIGN, + p + 20, + input_message_buffer->length - len + 8, + &csum); + krb5_crypto_destroy (_gsskrb5_context, crypto); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + + /* copy out data */ + + output_message_buffer->length = input_message_buffer->length + - len - padlength - 8; + output_message_buffer->value = malloc(output_message_buffer->length); + if(output_message_buffer->length != 0 && output_message_buffer->value == NULL) + return GSS_S_FAILURE; + memcpy (output_message_buffer->value, + p + 36, + output_message_buffer->length); + return GSS_S_COMPLETE; +} + +OM_uint32 _gsskrb5_unwrap + (OM_uint32 * minor_status, + const gss_ctx_id_t context_handle, + const gss_buffer_t input_message_buffer, + gss_buffer_t output_message_buffer, + int * conf_state, + gss_qop_t * qop_state + ) +{ + krb5_keyblock *key; + OM_uint32 ret; + krb5_keytype keytype; + gsskrb5_ctx ctx = (gsskrb5_ctx) context_handle; + + output_message_buffer->value = NULL; + output_message_buffer->length = 0; + + if (qop_state != NULL) + *qop_state = GSS_C_QOP_DEFAULT; + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + ret = _gsskrb5i_get_token_key(ctx, &key); + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + krb5_enctype_to_keytype (_gsskrb5_context, key->keytype, &keytype); + + *minor_status = 0; + + switch (keytype) { + case KEYTYPE_DES : + ret = unwrap_des (minor_status, ctx, + input_message_buffer, output_message_buffer, + conf_state, qop_state, key); + break; + case KEYTYPE_DES3 : + ret = unwrap_des3 (minor_status, ctx, + input_message_buffer, output_message_buffer, + conf_state, qop_state, key); + break; + case KEYTYPE_ARCFOUR: + case KEYTYPE_ARCFOUR_56: + ret = _gssapi_unwrap_arcfour (minor_status, ctx, + input_message_buffer, output_message_buffer, + conf_state, qop_state, key); + break; + default : + ret = _gssapi_unwrap_cfx (minor_status, ctx, + input_message_buffer, output_message_buffer, + conf_state, qop_state, key); + break; + } + krb5_free_keyblock (_gsskrb5_context, key); + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/verify_mic.c b/source4/heimdal/lib/gssapi/krb5/verify_mic.c new file mode 100644 index 0000000000..920937cafc --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/verify_mic.c @@ -0,0 +1,339 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: verify_mic.c,v 1.36 2006/10/18 15:59:30 lha Exp $"); + +static OM_uint32 +verify_mic_des + (OM_uint32 * minor_status, + const gsskrb5_ctx context_handle, + const gss_buffer_t message_buffer, + const gss_buffer_t token_buffer, + gss_qop_t * qop_state, + krb5_keyblock *key, + char *type + ) +{ + u_char *p; + MD5_CTX md5; + u_char hash[16], *seq; + DES_key_schedule schedule; + DES_cblock zero; + DES_cblock deskey; + uint32_t seq_number; + OM_uint32 ret; + int cmp; + + p = token_buffer->value; + ret = _gsskrb5_verify_header (&p, + token_buffer->length, + type, + GSS_KRB5_MECHANISM); + if (ret) + return ret; + + if (memcmp(p, "\x00\x00", 2) != 0) + return GSS_S_BAD_SIG; + p += 2; + if (memcmp (p, "\xff\xff\xff\xff", 4) != 0) + return GSS_S_BAD_MIC; + p += 4; + p += 16; + + /* verify checksum */ + MD5_Init (&md5); + MD5_Update (&md5, p - 24, 8); + MD5_Update (&md5, message_buffer->value, + message_buffer->length); + MD5_Final (hash, &md5); + + memset (&zero, 0, sizeof(zero)); + memcpy (&deskey, key->keyvalue.data, sizeof(deskey)); + + DES_set_key (&deskey, &schedule); + DES_cbc_cksum ((void *)hash, (void *)hash, sizeof(hash), + &schedule, &zero); + if (memcmp (p - 8, hash, 8) != 0) { + memset (deskey, 0, sizeof(deskey)); + memset (&schedule, 0, sizeof(schedule)); + return GSS_S_BAD_MIC; + } + + /* verify sequence number */ + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + + p -= 16; + DES_set_key (&deskey, &schedule); + DES_cbc_encrypt ((void *)p, (void *)p, 8, + &schedule, (DES_cblock *)hash, DES_DECRYPT); + + memset (deskey, 0, sizeof(deskey)); + memset (&schedule, 0, sizeof(schedule)); + + seq = p; + _gsskrb5_decode_om_uint32(seq, &seq_number); + + if (context_handle->more_flags & LOCAL) + cmp = memcmp(&seq[4], "\xff\xff\xff\xff", 4); + else + cmp = memcmp(&seq[4], "\x00\x00\x00\x00", 4); + + if (cmp != 0) { + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return GSS_S_BAD_MIC; + } + + ret = _gssapi_msg_order_check(context_handle->order, seq_number); + if (ret) { + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return ret; + } + + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + return GSS_S_COMPLETE; +} + +static OM_uint32 +verify_mic_des3 + (OM_uint32 * minor_status, + const gsskrb5_ctx context_handle, + const gss_buffer_t message_buffer, + const gss_buffer_t token_buffer, + gss_qop_t * qop_state, + krb5_keyblock *key, + char *type + ) +{ + u_char *p; + u_char *seq; + uint32_t seq_number; + OM_uint32 ret; + krb5_crypto crypto; + krb5_data seq_data; + int cmp, docompat; + Checksum csum; + char *tmp; + char ivec[8]; + + p = token_buffer->value; + ret = _gsskrb5_verify_header (&p, + token_buffer->length, + type, + GSS_KRB5_MECHANISM); + if (ret) + return ret; + + if (memcmp(p, "\x04\x00", 2) != 0) /* SGN_ALG = HMAC SHA1 DES3-KD */ + return GSS_S_BAD_SIG; + p += 2; + if (memcmp (p, "\xff\xff\xff\xff", 4) != 0) + return GSS_S_BAD_MIC; + p += 4; + + ret = krb5_crypto_init(_gsskrb5_context, key, + ETYPE_DES3_CBC_NONE, &crypto); + if (ret){ + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + + /* verify sequence number */ + docompat = 0; +retry: + if (docompat) + memset(ivec, 0, 8); + else + memcpy(ivec, p + 8, 8); + + ret = krb5_decrypt_ivec (_gsskrb5_context, + crypto, + KRB5_KU_USAGE_SEQ, + p, 8, &seq_data, ivec); + if (ret) { + if (docompat++) { + _gsskrb5_set_error_string (); + krb5_crypto_destroy (_gsskrb5_context, crypto); + *minor_status = ret; + return GSS_S_FAILURE; + } else + goto retry; + } + + if (seq_data.length != 8) { + krb5_data_free (&seq_data); + if (docompat++) { + krb5_crypto_destroy (_gsskrb5_context, crypto); + return GSS_S_BAD_MIC; + } else + goto retry; + } + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + + seq = seq_data.data; + _gsskrb5_decode_om_uint32(seq, &seq_number); + + if (context_handle->more_flags & LOCAL) + cmp = memcmp(&seq[4], "\xff\xff\xff\xff", 4); + else + cmp = memcmp(&seq[4], "\x00\x00\x00\x00", 4); + + krb5_data_free (&seq_data); + if (cmp != 0) { + krb5_crypto_destroy (_gsskrb5_context, crypto); + *minor_status = 0; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return GSS_S_BAD_MIC; + } + + ret = _gssapi_msg_order_check(context_handle->order, seq_number); + if (ret) { + krb5_crypto_destroy (_gsskrb5_context, crypto); + *minor_status = 0; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return ret; + } + + /* verify checksum */ + + tmp = malloc (message_buffer->length + 8); + if (tmp == NULL) { + krb5_crypto_destroy (_gsskrb5_context, crypto); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + memcpy (tmp, p - 8, 8); + memcpy (tmp + 8, message_buffer->value, message_buffer->length); + + csum.cksumtype = CKSUMTYPE_HMAC_SHA1_DES3; + csum.checksum.length = 20; + csum.checksum.data = p + 8; + + ret = krb5_verify_checksum (_gsskrb5_context, crypto, + KRB5_KU_USAGE_SIGN, + tmp, message_buffer->length + 8, + &csum); + free (tmp); + if (ret) { + _gsskrb5_set_error_string (); + krb5_crypto_destroy (_gsskrb5_context, crypto); + *minor_status = ret; + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + return GSS_S_BAD_MIC; + } + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + + krb5_crypto_destroy (_gsskrb5_context, crypto); + return GSS_S_COMPLETE; +} + +OM_uint32 +_gsskrb5_verify_mic_internal + (OM_uint32 * minor_status, + const gsskrb5_ctx context_handle, + const gss_buffer_t message_buffer, + const gss_buffer_t token_buffer, + gss_qop_t * qop_state, + char * type + ) +{ + krb5_keyblock *key; + OM_uint32 ret; + krb5_keytype keytype; + + HEIMDAL_MUTEX_lock(&context_handle->ctx_id_mutex); + ret = _gsskrb5i_get_token_key(context_handle, &key); + HEIMDAL_MUTEX_unlock(&context_handle->ctx_id_mutex); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + *minor_status = 0; + krb5_enctype_to_keytype (_gsskrb5_context, key->keytype, &keytype); + switch (keytype) { + case KEYTYPE_DES : + ret = verify_mic_des (minor_status, context_handle, + message_buffer, token_buffer, qop_state, key, + type); + break; + case KEYTYPE_DES3 : + ret = verify_mic_des3 (minor_status, context_handle, + message_buffer, token_buffer, qop_state, key, + type); + break; + case KEYTYPE_ARCFOUR : + case KEYTYPE_ARCFOUR_56 : + ret = _gssapi_verify_mic_arcfour (minor_status, context_handle, + message_buffer, token_buffer, + qop_state, key, type); + break; + default : + ret = _gssapi_verify_mic_cfx (minor_status, context_handle, + message_buffer, token_buffer, qop_state, + key); + break; + } + krb5_free_keyblock (_gsskrb5_context, key); + + return ret; +} + +OM_uint32 +_gsskrb5_verify_mic + (OM_uint32 * minor_status, + const gss_ctx_id_t context_handle, + const gss_buffer_t message_buffer, + const gss_buffer_t token_buffer, + gss_qop_t * qop_state + ) +{ + OM_uint32 ret; + + if (qop_state != NULL) + *qop_state = GSS_C_QOP_DEFAULT; + + ret = _gsskrb5_verify_mic_internal(minor_status, + (gsskrb5_ctx)context_handle, + message_buffer, token_buffer, + qop_state, "\x01\x01"); + + return ret; +} diff --git a/source4/heimdal/lib/gssapi/krb5/wrap.c b/source4/heimdal/lib/gssapi/krb5/wrap.c new file mode 100644 index 0000000000..8514137999 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/wrap.c @@ -0,0 +1,545 @@ +/* + * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: wrap.c,v 1.37 2006/10/18 15:59:33 lha Exp $"); + +/* + * Return initiator subkey, or if that doesn't exists, the subkey. + */ + +krb5_error_code +_gsskrb5i_get_initiator_subkey(const gsskrb5_ctx ctx, krb5_keyblock **key) +{ + krb5_error_code ret; + *key = NULL; + + if (ctx->more_flags & LOCAL) { + ret = krb5_auth_con_getlocalsubkey(_gsskrb5_context, + ctx->auth_context, + key); + } else { + ret = krb5_auth_con_getremotesubkey(_gsskrb5_context, + ctx->auth_context, + key); + } + if (*key == NULL) + ret = krb5_auth_con_getkey(_gsskrb5_context, + ctx->auth_context, + key); + if (*key == NULL) { + _gsskrb5_set_status("No initiator subkey available"); + return GSS_KRB5_S_KG_NO_SUBKEY; + } + return ret; +} + +krb5_error_code +_gsskrb5i_get_acceptor_subkey(const gsskrb5_ctx ctx, krb5_keyblock **key) +{ + krb5_error_code ret; + *key = NULL; + + if (ctx->more_flags & LOCAL) { + ret = krb5_auth_con_getremotesubkey(_gsskrb5_context, + ctx->auth_context, + key); + } else { + ret = krb5_auth_con_getlocalsubkey(_gsskrb5_context, + ctx->auth_context, + key); + } + if (*key == NULL) { + _gsskrb5_set_status("No acceptor subkey available"); + return GSS_KRB5_S_KG_NO_SUBKEY; + } + return ret; +} + +OM_uint32 +_gsskrb5i_get_token_key(const gsskrb5_ctx ctx, krb5_keyblock **key) +{ + _gsskrb5i_get_acceptor_subkey(ctx, key); + if(*key == NULL) { + /* + * Only use the initiator subkey or ticket session key if an + * acceptor subkey was not required. + */ + if ((ctx->more_flags & ACCEPTOR_SUBKEY) == 0) + _gsskrb5i_get_initiator_subkey(ctx, key); + } + if (*key == NULL) { + _gsskrb5_set_status("No token key available"); + return GSS_KRB5_S_KG_NO_SUBKEY; + } + _gsskrb5_clear_status(); + return 0; +} + +static OM_uint32 +sub_wrap_size ( + OM_uint32 req_output_size, + OM_uint32 * max_input_size, + int blocksize, + int extrasize + ) +{ + size_t len, total_len; + + len = 8 + req_output_size + blocksize + extrasize; + + _gsskrb5_encap_length(len, &len, &total_len, GSS_KRB5_MECHANISM); + + total_len -= req_output_size; /* token length */ + if (total_len < req_output_size) { + *max_input_size = (req_output_size - total_len); + (*max_input_size) &= (~(OM_uint32)(blocksize - 1)); + } else { + *max_input_size = 0; + } + return GSS_S_COMPLETE; +} + +OM_uint32 +_gsskrb5_wrap_size_limit ( + OM_uint32 * minor_status, + const gss_ctx_id_t context_handle, + int conf_req_flag, + gss_qop_t qop_req, + OM_uint32 req_output_size, + OM_uint32 * max_input_size + ) +{ + krb5_keyblock *key; + OM_uint32 ret; + krb5_keytype keytype; + const gsskrb5_ctx ctx = (const gsskrb5_ctx) context_handle; + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + ret = _gsskrb5i_get_token_key(ctx, &key); + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + krb5_enctype_to_keytype (_gsskrb5_context, key->keytype, &keytype); + + switch (keytype) { + case KEYTYPE_DES : + ret = sub_wrap_size(req_output_size, max_input_size, 8, 22); + break; + case KEYTYPE_ARCFOUR: + case KEYTYPE_ARCFOUR_56: + ret = _gssapi_wrap_size_arcfour(minor_status, ctx, + conf_req_flag, qop_req, + req_output_size, max_input_size, key); + break; + case KEYTYPE_DES3 : + ret = sub_wrap_size(req_output_size, max_input_size, 8, 34); + break; + default : + ret = _gssapi_wrap_size_cfx(minor_status, ctx, + conf_req_flag, qop_req, + req_output_size, max_input_size, key); + break; + } + krb5_free_keyblock (_gsskrb5_context, key); + *minor_status = 0; + return ret; +} + +static OM_uint32 +wrap_des + (OM_uint32 * minor_status, + const gsskrb5_ctx ctx, + int conf_req_flag, + gss_qop_t qop_req, + const gss_buffer_t input_message_buffer, + int * conf_state, + gss_buffer_t output_message_buffer, + krb5_keyblock *key + ) +{ + u_char *p; + MD5_CTX md5; + u_char hash[16]; + DES_key_schedule schedule; + DES_cblock deskey; + DES_cblock zero; + int i; + int32_t seq_number; + size_t len, total_len, padlength, datalen; + + padlength = 8 - (input_message_buffer->length % 8); + datalen = input_message_buffer->length + padlength + 8; + len = datalen + 22; + _gsskrb5_encap_length (len, &len, &total_len, GSS_KRB5_MECHANISM); + + output_message_buffer->length = total_len; + output_message_buffer->value = malloc (total_len); + if (output_message_buffer->value == NULL) { + output_message_buffer->length = 0; + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + p = _gsskrb5_make_header(output_message_buffer->value, + len, + "\x02\x01", /* TOK_ID */ + GSS_KRB5_MECHANISM); + + /* SGN_ALG */ + memcpy (p, "\x00\x00", 2); + p += 2; + /* SEAL_ALG */ + if(conf_req_flag) + memcpy (p, "\x00\x00", 2); + else + memcpy (p, "\xff\xff", 2); + p += 2; + /* Filler */ + memcpy (p, "\xff\xff", 2); + p += 2; + + /* fill in later */ + memset (p, 0, 16); + p += 16; + + /* confounder + data + pad */ + krb5_generate_random_block(p, 8); + memcpy (p + 8, input_message_buffer->value, + input_message_buffer->length); + memset (p + 8 + input_message_buffer->length, padlength, padlength); + + /* checksum */ + MD5_Init (&md5); + MD5_Update (&md5, p - 24, 8); + MD5_Update (&md5, p, datalen); + MD5_Final (hash, &md5); + + memset (&zero, 0, sizeof(zero)); + memcpy (&deskey, key->keyvalue.data, sizeof(deskey)); + DES_set_key (&deskey, &schedule); + DES_cbc_cksum ((void *)hash, (void *)hash, sizeof(hash), + &schedule, &zero); + memcpy (p - 8, hash, 8); + + /* sequence number */ + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + krb5_auth_con_getlocalseqnumber (_gsskrb5_context, + ctx->auth_context, + &seq_number); + + p -= 16; + p[0] = (seq_number >> 0) & 0xFF; + p[1] = (seq_number >> 8) & 0xFF; + p[2] = (seq_number >> 16) & 0xFF; + p[3] = (seq_number >> 24) & 0xFF; + memset (p + 4, + (ctx->more_flags & LOCAL) ? 0 : 0xFF, + 4); + + DES_set_key (&deskey, &schedule); + DES_cbc_encrypt ((void *)p, (void *)p, 8, + &schedule, (DES_cblock *)(p + 8), DES_ENCRYPT); + + krb5_auth_con_setlocalseqnumber (_gsskrb5_context, + ctx->auth_context, + ++seq_number); + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + /* encrypt the data */ + p += 16; + + if(conf_req_flag) { + memcpy (&deskey, key->keyvalue.data, sizeof(deskey)); + + for (i = 0; i < sizeof(deskey); ++i) + deskey[i] ^= 0xf0; + DES_set_key (&deskey, &schedule); + memset (&zero, 0, sizeof(zero)); + DES_cbc_encrypt ((void *)p, + (void *)p, + datalen, + &schedule, + &zero, + DES_ENCRYPT); + } + memset (deskey, 0, sizeof(deskey)); + memset (&schedule, 0, sizeof(schedule)); + + if(conf_state != NULL) + *conf_state = conf_req_flag; + *minor_status = 0; + return GSS_S_COMPLETE; +} + +static OM_uint32 +wrap_des3 + (OM_uint32 * minor_status, + const gsskrb5_ctx ctx, + int conf_req_flag, + gss_qop_t qop_req, + const gss_buffer_t input_message_buffer, + int * conf_state, + gss_buffer_t output_message_buffer, + krb5_keyblock *key + ) +{ + u_char *p; + u_char seq[8]; + int32_t seq_number; + size_t len, total_len, padlength, datalen; + uint32_t ret; + krb5_crypto crypto; + Checksum cksum; + krb5_data encdata; + + padlength = 8 - (input_message_buffer->length % 8); + datalen = input_message_buffer->length + padlength + 8; + len = datalen + 34; + _gsskrb5_encap_length (len, &len, &total_len, GSS_KRB5_MECHANISM); + + output_message_buffer->length = total_len; + output_message_buffer->value = malloc (total_len); + if (output_message_buffer->value == NULL) { + output_message_buffer->length = 0; + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + p = _gsskrb5_make_header(output_message_buffer->value, + len, + "\x02\x01", /* TOK_ID */ + GSS_KRB5_MECHANISM); + + /* SGN_ALG */ + memcpy (p, "\x04\x00", 2); /* HMAC SHA1 DES3-KD */ + p += 2; + /* SEAL_ALG */ + if(conf_req_flag) + memcpy (p, "\x02\x00", 2); /* DES3-KD */ + else + memcpy (p, "\xff\xff", 2); + p += 2; + /* Filler */ + memcpy (p, "\xff\xff", 2); + p += 2; + + /* calculate checksum (the above + confounder + data + pad) */ + + memcpy (p + 20, p - 8, 8); + krb5_generate_random_block(p + 28, 8); + memcpy (p + 28 + 8, input_message_buffer->value, + input_message_buffer->length); + memset (p + 28 + 8 + input_message_buffer->length, padlength, padlength); + + ret = krb5_crypto_init(_gsskrb5_context, key, 0, &crypto); + if (ret) { + _gsskrb5_set_error_string (); + free (output_message_buffer->value); + output_message_buffer->length = 0; + output_message_buffer->value = NULL; + *minor_status = ret; + return GSS_S_FAILURE; + } + + ret = krb5_create_checksum (_gsskrb5_context, + crypto, + KRB5_KU_USAGE_SIGN, + 0, + p + 20, + datalen + 8, + &cksum); + krb5_crypto_destroy (_gsskrb5_context, crypto); + if (ret) { + _gsskrb5_set_error_string (); + free (output_message_buffer->value); + output_message_buffer->length = 0; + output_message_buffer->value = NULL; + *minor_status = ret; + return GSS_S_FAILURE; + } + + /* zero out SND_SEQ + SGN_CKSUM in case */ + memset (p, 0, 28); + + memcpy (p + 8, cksum.checksum.data, cksum.checksum.length); + free_Checksum (&cksum); + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + /* sequence number */ + krb5_auth_con_getlocalseqnumber (_gsskrb5_context, + ctx->auth_context, + &seq_number); + + seq[0] = (seq_number >> 0) & 0xFF; + seq[1] = (seq_number >> 8) & 0xFF; + seq[2] = (seq_number >> 16) & 0xFF; + seq[3] = (seq_number >> 24) & 0xFF; + memset (seq + 4, + (ctx->more_flags & LOCAL) ? 0 : 0xFF, + 4); + + + ret = krb5_crypto_init(_gsskrb5_context, key, ETYPE_DES3_CBC_NONE, + &crypto); + if (ret) { + free (output_message_buffer->value); + output_message_buffer->length = 0; + output_message_buffer->value = NULL; + *minor_status = ret; + return GSS_S_FAILURE; + } + + { + DES_cblock ivec; + + memcpy (&ivec, p + 8, 8); + ret = krb5_encrypt_ivec (_gsskrb5_context, + crypto, + KRB5_KU_USAGE_SEQ, + seq, 8, &encdata, + &ivec); + } + krb5_crypto_destroy (_gsskrb5_context, crypto); + if (ret) { + _gsskrb5_set_error_string (); + free (output_message_buffer->value); + output_message_buffer->length = 0; + output_message_buffer->value = NULL; + *minor_status = ret; + return GSS_S_FAILURE; + } + + assert (encdata.length == 8); + + memcpy (p, encdata.data, encdata.length); + krb5_data_free (&encdata); + + krb5_auth_con_setlocalseqnumber (_gsskrb5_context, + ctx->auth_context, + ++seq_number); + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + + /* encrypt the data */ + p += 28; + + if(conf_req_flag) { + krb5_data tmp; + + ret = krb5_crypto_init(_gsskrb5_context, key, + ETYPE_DES3_CBC_NONE, &crypto); + if (ret) { + _gsskrb5_set_error_string (); + free (output_message_buffer->value); + output_message_buffer->length = 0; + output_message_buffer->value = NULL; + *minor_status = ret; + return GSS_S_FAILURE; + } + ret = krb5_encrypt(_gsskrb5_context, crypto, KRB5_KU_USAGE_SEAL, + p, datalen, &tmp); + krb5_crypto_destroy(_gsskrb5_context, crypto); + if (ret) { + _gsskrb5_set_error_string (); + free (output_message_buffer->value); + output_message_buffer->length = 0; + output_message_buffer->value = NULL; + *minor_status = ret; + return GSS_S_FAILURE; + } + assert (tmp.length == datalen); + + memcpy (p, tmp.data, datalen); + krb5_data_free(&tmp); + } + if(conf_state != NULL) + *conf_state = conf_req_flag; + *minor_status = 0; + return GSS_S_COMPLETE; +} + +OM_uint32 _gsskrb5_wrap + (OM_uint32 * minor_status, + const gss_ctx_id_t context_handle, + int conf_req_flag, + gss_qop_t qop_req, + const gss_buffer_t input_message_buffer, + int * conf_state, + gss_buffer_t output_message_buffer + ) +{ + krb5_keyblock *key; + OM_uint32 ret; + krb5_keytype keytype; + const gsskrb5_ctx ctx = (const gsskrb5_ctx) context_handle; + + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + ret = _gsskrb5i_get_token_key(ctx, &key); + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + if (ret) { + _gsskrb5_set_error_string (); + *minor_status = ret; + return GSS_S_FAILURE; + } + krb5_enctype_to_keytype (_gsskrb5_context, key->keytype, &keytype); + + switch (keytype) { + case KEYTYPE_DES : + ret = wrap_des (minor_status, ctx, conf_req_flag, + qop_req, input_message_buffer, conf_state, + output_message_buffer, key); + break; + case KEYTYPE_DES3 : + ret = wrap_des3 (minor_status, ctx, conf_req_flag, + qop_req, input_message_buffer, conf_state, + output_message_buffer, key); + break; + case KEYTYPE_ARCFOUR: + case KEYTYPE_ARCFOUR_56: + ret = _gssapi_wrap_arcfour (minor_status, ctx, conf_req_flag, + qop_req, input_message_buffer, conf_state, + output_message_buffer, key); + break; + default : + ret = _gssapi_wrap_cfx (minor_status, ctx, conf_req_flag, + qop_req, input_message_buffer, conf_state, + output_message_buffer, key); + break; + } + krb5_free_keyblock (_gsskrb5_context, key); + return ret; +} |