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-rw-r--r--source4/libcli/raw/clikrb5.c96
-rw-r--r--source4/libcli/raw/clispnego.c20
2 files changed, 72 insertions, 44 deletions
diff --git a/source4/libcli/raw/clikrb5.c b/source4/libcli/raw/clikrb5.c
index 24da1455de..1d9c02f7f4 100644
--- a/source4/libcli/raw/clikrb5.c
+++ b/source4/libcli/raw/clikrb5.c
@@ -97,7 +97,9 @@
return ret;
}
krb5_use_enctype(context, &eblock, enctype);
- return krb5_string_to_key(context, &eblock, key, password, &salt);
+ ret = krb5_string_to_key(context, &eblock, key, password, &salt);
+ SAFE_FREE(salt.data);
+ return ret;
}
#elif defined(HAVE_KRB5_GET_PW_SALT) && defined(HAVE_KRB5_STRING_TO_KEY_SALT)
int create_kerberos_key_from_string(krb5_context context,
@@ -235,12 +237,12 @@ krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
/*
we can't use krb5_mk_req because w2k wants the service to be in a particular format
*/
-static krb5_error_code krb5_mk_req2(krb5_context context,
- krb5_auth_context *auth_context,
- const krb5_flags ap_req_options,
- const char *principal,
- krb5_ccache ccache,
- krb5_data *outbuf)
+static krb5_error_code ads_krb5_mk_req(krb5_context context,
+ krb5_auth_context *auth_context,
+ const krb5_flags ap_req_options,
+ const char *principal,
+ krb5_ccache ccache,
+ krb5_data *outbuf)
{
krb5_error_code retval;
krb5_principal server;
@@ -255,7 +257,7 @@ static krb5_error_code krb5_mk_req2(krb5_context context,
}
/* obtain ticket & session key */
- memset((char *)&creds, 0, sizeof(creds));
+ ZERO_STRUCT(creds);
if ((retval = krb5_copy_principal(context, server, &creds.server))) {
DEBUG(1,("krb5_copy_principal failed (%s)\n",
error_message(retval)));
@@ -305,14 +307,14 @@ cleanup_princ:
/*
get a kerberos5 ticket for the given service
*/
-DATA_BLOB krb5_get_ticket(const char *principal, time_t time_offset)
+int cli_krb5_get_ticket(const char *principal, time_t time_offset,
+ DATA_BLOB *ticket, DATA_BLOB *session_key_krb5)
{
krb5_error_code retval;
krb5_data packet;
krb5_ccache ccdef;
krb5_context context;
krb5_auth_context auth_context = NULL;
- DATA_BLOB ret;
krb5_enctype enc_types[] = {
#ifdef ENCTYPE_ARCFOUR_HMAC
ENCTYPE_ARCFOUR_HMAC,
@@ -344,56 +346,76 @@ DATA_BLOB krb5_get_ticket(const char *principal, time_t time_offset)
goto failed;
}
- if ((retval = krb5_mk_req2(context,
- &auth_context,
- 0,
- principal,
- ccdef, &packet))) {
+ if ((retval = ads_krb5_mk_req(context,
+ &auth_context,
+ AP_OPTS_USE_SUBKEY,
+ principal,
+ ccdef, &packet))) {
goto failed;
}
- ret = data_blob(packet.data, packet.length);
+ get_krb5_smb_session_key(context, auth_context, session_key_krb5, False);
+
+ *ticket = data_blob(packet.data, packet.length);
+
/* Hmm, heimdal dooesn't have this - what's the correct call? */
-/* krb5_free_data_contents(context, &packet); */
- krb5_free_context(context);
- return ret;
+#ifdef HAVE_KRB5_FREE_DATA_CONTENTS
+ krb5_free_data_contents(context, &packet);
+#endif
failed:
if ( context )
krb5_free_context(context);
- return data_blob(NULL, 0);
+ return retval;
}
- BOOL krb5_get_smb_session_key(krb5_context context, krb5_auth_context auth_context, uint8 session_key[16])
+ BOOL get_krb5_smb_session_key(krb5_context context, krb5_auth_context auth_context, DATA_BLOB *session_key, BOOL remote)
{
-#ifdef ENCTYPE_ARCFOUR_HMAC
krb5_keyblock *skey;
-#endif
+ krb5_error_code err;
BOOL ret = False;
memset(session_key, 0, 16);
-#ifdef ENCTYPE_ARCFOUR_HMAC
- if (krb5_auth_con_getremotesubkey(context, auth_context, &skey) == 0 && skey != NULL) {
- if (KRB5_KEY_TYPE(skey) ==
- ENCTYPE_ARCFOUR_HMAC
- && KRB5_KEY_LENGTH(skey) == 16) {
- memcpy(session_key, KRB5_KEY_DATA(skey), KRB5_KEY_LENGTH(skey));
- ret = True;
- }
+ if (remote)
+ err = krb5_auth_con_getremotesubkey(context, auth_context, &skey);
+ else
+ err = krb5_auth_con_getlocalsubkey(context, auth_context, &skey);
+ if (err == 0 && skey != NULL) {
+ DEBUG(10, ("Got KRB5 session key of length %d\n", KRB5_KEY_LENGTH(skey)));
+ *session_key = data_blob(KRB5_KEY_DATA(skey), KRB5_KEY_LENGTH(skey));
+ dump_data_pw("KRB5 Session Key:\n", session_key->data, session_key->length);
+
+ ret = True;
+
krb5_free_keyblock(context, skey);
+ } else {
+ DEBUG(10, ("KRB5 error getting session key %d\n", err));
}
-#endif /* ENCTYPE_ARCFOUR_HMAC */
return ret;
}
+
+
+#if defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING) && !defined(HAVE_KRB5_PRINC_COMPONENT)
+ const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i )
+{
+ static krb5_data kdata;
+
+ kdata.data = krb5_principal_get_comp_string(context, principal, i);
+ kdata.length = strlen(kdata.data);
+ return &kdata;
+}
+#endif
+
#else /* HAVE_KRB5 */
- /* this saves a few linking headaches */
-DATA_BLOB krb5_get_ticket(const char *principal, time_t time_offset)
- {
+/* this saves a few linking headaches */
+int cli_krb5_get_ticket(const char *principal, time_t time_offset,
+ DATA_BLOB *ticket, DATA_BLOB *session_key_krb5)
+{
DEBUG(0,("NO KERBEROS SUPPORT\n"));
- return data_blob(NULL, 0);
- }
+ return 1;
+}
#endif
diff --git a/source4/libcli/raw/clispnego.c b/source4/libcli/raw/clispnego.c
index 53f7eb6e7d..e6cadc466c 100644
--- a/source4/libcli/raw/clispnego.c
+++ b/source4/libcli/raw/clispnego.c
@@ -2,7 +2,7 @@
Unix SMB/CIFS implementation.
simple kerberos5/SPNEGO routines
Copyright (C) Andrew Tridgell 2001
- Copyright (C) Jim McDonough 2002
+ Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2002
Copyright (C) Luke Howard 2003
This program is free software; you can redistribute it and/or modify
@@ -323,24 +323,30 @@ BOOL spnego_parse_krb5_wrap(DATA_BLOB blob, DATA_BLOB *ticket, uint8 tok_id[2])
generate a SPNEGO negTokenTarg packet, ready for a EXTENDED_SECURITY
kerberos session setup
*/
-DATA_BLOB spnego_gen_negTokenTarg(const char *principal, int time_offset)
+int spnego_gen_negTokenTarg(const char *principal, int time_offset,
+ DATA_BLOB *targ,
+ DATA_BLOB *session_key_krb5)
{
- DATA_BLOB tkt, tkt_wrapped, targ;
+ int retval;
+ DATA_BLOB tkt, tkt_wrapped;
const char *krb_mechs[] = {OID_KERBEROS5_OLD, OID_NTLMSSP, NULL};
- /* get a kerberos ticket for the service */
- tkt = krb5_get_ticket(principal, time_offset);
+ /* get a kerberos ticket for the service and extract the session key */
+ retval = cli_krb5_get_ticket(principal, time_offset, &tkt, session_key_krb5);
+
+ if (retval)
+ return retval;
/* wrap that up in a nice GSS-API wrapping */
tkt_wrapped = spnego_gen_krb5_wrap(tkt, TOK_ID_KRB_AP_REQ);
/* and wrap that in a shiny SPNEGO wrapper */
- targ = gen_negTokenTarg(krb_mechs, tkt_wrapped);
+ *targ = gen_negTokenTarg(krb_mechs, tkt_wrapped);
data_blob_free(&tkt_wrapped);
data_blob_free(&tkt);
- return targ;
+ return retval;
}
generated by cgit (git 2.34.1) at 2024-12-22 03:57:37 +0000