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|
/*
Unix SMB/CIFS implementation.
Kerberos backend for GENSEC
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004
Copyright (C) Andrew Tridgell 2001
Copyright (C) Luke Howard 2002-2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "system/kerberos.h"
#include "system/time.h"
#include "libcli/auth/kerberos.h"
#include "librpc/gen_ndr/ndr_krb5pac.h"
#include "auth/auth.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
enum GENSEC_KRB5_STATE {
GENSEC_KRB5_SERVER_START,
GENSEC_KRB5_CLIENT_START,
GENSEC_KRB5_CLIENT_MUTUAL_AUTH,
GENSEC_KRB5_DONE
};
struct gensec_krb5_state {
DATA_BLOB session_key;
DATA_BLOB pac;
enum GENSEC_KRB5_STATE state_position;
krb5_context krb5_context;
krb5_auth_context krb5_auth_context;
krb5_ccache krb5_ccache;
krb5_data ticket;
krb5_keyblock krb5_keyblock;
char *peer_principal;
};
#ifdef KRB5_DO_VERIFY_PAC
static NTSTATUS gensec_krb5_pac_checksum(DATA_BLOB pac_data,
struct PAC_SIGNATURE_DATA *sig,
struct gensec_krb5_state *gensec_krb5_state,
uint32 keyusage)
{
krb5_error_code ret;
krb5_crypto crypto;
Checksum cksum;
int i;
cksum.cksumtype = (CKSUMTYPE)sig->type;
cksum.checksum.length = sizeof(sig->signature);
cksum.checksum.data = sig->signature;
ret = krb5_crypto_init(gensec_krb5_state->krb5_context,
&gensec_krb5_state->krb5_keyblock,
0,
&crypto);
if (ret) {
DEBUG(0,("krb5_crypto_init() failed\n"));
return NT_STATUS_FOOBAR;
}
for (i=0; i < 40; i++) {
keyusage = i;
ret = krb5_verify_checksum(gensec_krb5_state->krb5_context,
crypto,
keyusage,
pac_data.data,
pac_data.length,
&cksum);
if (!ret) {
DEBUG(0,("PAC Verified: keyusage: %d\n", keyusage));
break;
}
}
krb5_crypto_destroy(gensec_krb5_state->krb5_context, crypto);
if (ret) {
DEBUG(0,("NOT verifying PAC checksums yet!\n"));
//return NT_STATUS_LOGON_FAILURE;
} else {
DEBUG(0,("PAC checksums verified!\n"));
}
return NT_STATUS_OK;
}
#endif
static NTSTATUS gensec_krb5_decode_pac(TALLOC_CTX *mem_ctx,
struct PAC_LOGON_INFO **logon_info_out,
DATA_BLOB blob,
struct gensec_krb5_state *gensec_krb5_state)
{
NTSTATUS status;
struct PAC_SIGNATURE_DATA srv_sig;
struct PAC_SIGNATURE_DATA *srv_sig_ptr;
struct PAC_SIGNATURE_DATA kdc_sig;
struct PAC_SIGNATURE_DATA *kdc_sig_ptr;
struct PAC_LOGON_INFO *logon_info = NULL;
struct PAC_DATA pac_data;
#ifdef KRB5_DO_VERIFY_PAC
DATA_BLOB tmp_blob = data_blob(NULL, 0);
#endif
int i;
status = ndr_pull_struct_blob(&blob, mem_ctx, &pac_data,
(ndr_pull_flags_fn_t)ndr_pull_PAC_DATA);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("can't parse the PAC\n"));
return status;
}
NDR_PRINT_DEBUG(PAC_DATA, &pac_data);
if (pac_data.num_buffers < 3) {
/* we need logon_ingo, service_key and kdc_key */
DEBUG(0,("less than 3 PAC buffers\n"));
return NT_STATUS_FOOBAR;
}
for (i=0; i < pac_data.num_buffers; i++) {
switch (pac_data.buffers[i].type) {
case PAC_TYPE_LOGON_INFO:
if (!pac_data.buffers[i].info) {
break;
}
logon_info = &pac_data.buffers[i].info->logon_info;
break;
case PAC_TYPE_SRV_CHECKSUM:
if (!pac_data.buffers[i].info) {
break;
}
srv_sig_ptr = &pac_data.buffers[i].info->srv_cksum;
srv_sig = pac_data.buffers[i].info->srv_cksum;
break;
case PAC_TYPE_KDC_CHECKSUM:
if (!pac_data.buffers[i].info) {
break;
}
kdc_sig_ptr = &pac_data.buffers[i].info->kdc_cksum;
kdc_sig = pac_data.buffers[i].info->kdc_cksum;
break;
case PAC_TYPE_UNKNOWN_10:
break;
default:
break;
}
}
if (!logon_info) {
DEBUG(0,("PAC no logon_info\n"));
return NT_STATUS_FOOBAR;
}
if (!srv_sig_ptr) {
DEBUG(0,("PAC no srv_key\n"));
return NT_STATUS_FOOBAR;
}
if (!kdc_sig_ptr) {
DEBUG(0,("PAC no kdc_key\n"));
return NT_STATUS_FOOBAR;
}
#ifdef KRB5_DO_VERIFY_PAC
/* clear the kdc_key */
/* memset((void *)kdc_sig_ptr , '\0', sizeof(*kdc_sig_ptr));*/
status = ndr_push_struct_blob(&tmp_blob, mem_ctx, &pac_data,
(ndr_push_flags_fn_t)ndr_push_PAC_DATA);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = ndr_pull_struct_blob(&tmp_blob, mem_ctx, &pac_data,
(ndr_pull_flags_fn_t)ndr_pull_PAC_DATA);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("can't parse the PAC\n"));
return status;
}
/*NDR_PRINT_DEBUG(PAC_DATA, &pac_data);*/
/* verify by kdc_key */
status = gensec_krb5_pac_checksum(tmp_blob, &kdc_sig, gensec_krb5_state, 0);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/* clear the service_key */
/* memset((void *)srv_sig_ptr , '\0', sizeof(*srv_sig_ptr));*/
status = ndr_push_struct_blob(&tmp_blob, mem_ctx, &pac_data,
(ndr_push_flags_fn_t)ndr_push_PAC_DATA);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = ndr_pull_struct_blob(&tmp_blob, mem_ctx, &pac_data,
(ndr_pull_flags_fn_t)ndr_pull_PAC_DATA);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("can't parse the PAC\n"));
return status;
}
NDR_PRINT_DEBUG(PAC_DATA, &pac_data);
/* verify by servie_key */
status = gensec_krb5_pac_checksum(tmp_blob, &srv_sig, gensec_krb5_state, 0);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
#endif
DEBUG(0,("account_name: %s [%s]\n",logon_info->info3.base.account_name.string, logon_info->info3.base.full_name.string));
*logon_info_out = logon_info;
return status;
}
static int gensec_krb5_destory(void *ptr)
{
struct gensec_krb5_state *gensec_krb5_state = ptr;
if (gensec_krb5_state->ticket.length) {
kerberos_free_data_contents(gensec_krb5_state->krb5_context, &gensec_krb5_state->ticket);
}
if (gensec_krb5_state->krb5_ccache) {
/* current heimdal - 0.6.3, which we need anyway, fixes segfaults here */
krb5_cc_close(gensec_krb5_state->krb5_context, gensec_krb5_state->krb5_ccache);
}
krb5_free_keyblock_contents(gensec_krb5_state->krb5_context,
&gensec_krb5_state->krb5_keyblock);
if (gensec_krb5_state->krb5_auth_context) {
krb5_auth_con_free(gensec_krb5_state->krb5_context,
gensec_krb5_state->krb5_auth_context);
}
if (gensec_krb5_state->krb5_context) {
krb5_free_context(gensec_krb5_state->krb5_context);
}
return 0;
}
static NTSTATUS gensec_krb5_start(struct gensec_security *gensec_security)
{
struct gensec_krb5_state *gensec_krb5_state;
krb5_error_code ret = 0;
gensec_krb5_state = talloc_p(gensec_security, struct gensec_krb5_state);
if (!gensec_krb5_state) {
return NT_STATUS_NO_MEMORY;
}
gensec_security->private_data = gensec_krb5_state;
initialize_krb5_error_table();
gensec_krb5_state->krb5_context = NULL;
gensec_krb5_state->krb5_auth_context = NULL;
gensec_krb5_state->krb5_ccache = NULL;
ZERO_STRUCT(gensec_krb5_state->ticket);
ZERO_STRUCT(gensec_krb5_state->krb5_keyblock);
gensec_krb5_state->session_key = data_blob(NULL, 0);
gensec_krb5_state->pac = data_blob(NULL, 0);
talloc_set_destructor(gensec_krb5_state, gensec_krb5_destory);
ret = krb5_init_context(&gensec_krb5_state->krb5_context);
if (ret) {
DEBUG(1,("gensec_krb5_start: krb5_init_context failed (%s)\n", error_message(ret)));
return NT_STATUS_INTERNAL_ERROR;
}
if (lp_realm() && *lp_realm()) {
ret = krb5_set_default_realm(gensec_krb5_state->krb5_context, lp_realm());
if (ret) {
DEBUG(1,("gensec_krb5_start: krb5_set_default_realm failed (%s)\n", error_message(ret)));
return NT_STATUS_INTERNAL_ERROR;
}
}
ret = krb5_auth_con_init(gensec_krb5_state->krb5_context, &gensec_krb5_state->krb5_auth_context);
if (ret) {
DEBUG(1,("gensec_krb5_start: krb5_auth_con_init failed (%s)\n", error_message(ret)));
return NT_STATUS_INTERNAL_ERROR;
}
return NT_STATUS_OK;
}
static NTSTATUS gensec_krb5_server_start(struct gensec_security *gensec_security)
{
NTSTATUS nt_status;
struct gensec_krb5_state *gensec_krb5_state;
nt_status = gensec_krb5_start(gensec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
gensec_krb5_state = gensec_security->private_data;
gensec_krb5_state->state_position = GENSEC_KRB5_SERVER_START;
return NT_STATUS_OK;
}
static NTSTATUS gensec_krb5_client_start(struct gensec_security *gensec_security)
{
struct gensec_krb5_state *gensec_krb5_state;
krb5_error_code ret;
NTSTATUS nt_status;
nt_status = gensec_krb5_start(gensec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
gensec_krb5_state = gensec_security->private_data;
gensec_krb5_state->state_position = GENSEC_KRB5_CLIENT_START;
/* TODO: This is effecivly a static/global variable...
TODO: If the user set a username, we should use an in-memory CCACHE (see below)
*/
ret = krb5_cc_default(gensec_krb5_state->krb5_context, &gensec_krb5_state->krb5_ccache);
if (ret) {
DEBUG(1,("krb5_cc_default failed (%s)\n",
error_message(ret)));
return NT_STATUS_INTERNAL_ERROR;
}
while (1) {
if (gensec_security->target.principal) {
DEBUG(5, ("Finding ticket for target [%s]\n", gensec_security->target.principal));
ret = ads_krb5_mk_req(gensec_krb5_state->krb5_context,
&gensec_krb5_state->krb5_auth_context,
AP_OPTS_USE_SUBKEY | AP_OPTS_MUTUAL_REQUIRED,
gensec_security->target.principal,
gensec_krb5_state->krb5_ccache,
&gensec_krb5_state->ticket);
} else {
krb5_data in_data;
const char *hostname = gensec_get_target_hostname(gensec_security);
if (!hostname) {
DEBUG(1, ("Could not determine hostname for target computer, cannot use kerberos\n"));
return NT_STATUS_ACCESS_DENIED;
}
in_data.length = 0;
ret = krb5_mk_req(gensec_krb5_state->krb5_context,
&gensec_krb5_state->krb5_auth_context,
AP_OPTS_USE_SUBKEY | AP_OPTS_MUTUAL_REQUIRED,
gensec_get_target_service(gensec_security),
hostname,
&in_data, gensec_krb5_state->krb5_ccache,
&gensec_krb5_state->ticket);
}
switch (ret) {
case 0:
return NT_STATUS_OK;
case KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN:
DEBUG(3, ("Server is not registered with our KDC: %s\n",
error_message(ret)));
return NT_STATUS_ACCESS_DENIED;
case KRB5KDC_ERR_PREAUTH_FAILED:
case KRB5KRB_AP_ERR_TKT_EXPIRED:
case KRB5_CC_END:
{
DEBUG(3, ("kerberos (mk_req) failed: %s\n",
error_message(ret)));
/* fall down to remaining code */
}
/* just don't print a message for these really ordinary messages */
case KRB5_FCC_NOFILE:
case KRB5_CC_NOTFOUND:
case ENOENT:
{
char *password;
char *ccache_string;
time_t kdc_time = 0;
nt_status = gensec_get_password(gensec_security,
gensec_security,
&password);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
/* this string should be unique */
ccache_string = talloc_asprintf(gensec_krb5_state, "MEMORY:%s:%s:%s",
gensec_get_client_principal(gensec_security, gensec_krb5_state),
gensec_get_target_principal(gensec_security),
generate_random_str(gensec_krb5_state, 16));
ret = krb5_cc_resolve(gensec_krb5_state->krb5_context, ccache_string, &gensec_krb5_state->krb5_ccache);
if (ret) {
DEBUG(1,("failed to generate a new krb5 keytab (%s): %s\n",
ccache_string,
error_message(ret)));
return NT_STATUS_INTERNAL_ERROR;
}
ret = kerberos_kinit_password_cc(gensec_krb5_state->krb5_context, gensec_krb5_state->krb5_ccache,
gensec_get_client_principal(gensec_security, gensec_krb5_state),
password, NULL, &kdc_time);
/* cope with ticket being in the future due to clock skew */
if ((unsigned)kdc_time > time(NULL)) {
time_t t = time(NULL);
int time_offset =(unsigned)kdc_time-t;
DEBUG(4,("Advancing clock by %d seconds to cope with clock skew\n", time_offset));
krb5_set_real_time(gensec_krb5_state->krb5_context, t + time_offset + 1, 0);
}
if (ret) {
DEBUG(1,("kinit failed (%s)\n",
error_message(ret)));
return NT_STATUS_WRONG_PASSWORD;
}
break;
}
default:
DEBUG(0, ("kerberos: %s\n",
error_message(ret)));
return NT_STATUS_UNSUCCESSFUL;
}
}
}
/**
* Next state function for the Krb5 GENSEC mechanism
*
* @param gensec_krb5_state KRB5 State
* @param out_mem_ctx The TALLOC_CTX for *out to be allocated on
* @param in The request, as a DATA_BLOB
* @param out The reply, as an talloc()ed DATA_BLOB, on *out_mem_ctx
* @return Error, MORE_PROCESSING_REQUIRED if a reply is sent,
* or NT_STATUS_OK if the user is authenticated.
*/
static NTSTATUS gensec_krb5_update(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out)
{
struct gensec_krb5_state *gensec_krb5_state = gensec_security->private_data;
krb5_error_code ret = 0;
DATA_BLOB pac;
NTSTATUS nt_status;
switch (gensec_krb5_state->state_position) {
case GENSEC_KRB5_CLIENT_START:
{
if (ret) {
DEBUG(1,("ads_krb5_mk_req (request ticket) failed (%s)\n",
error_message(ret)));
nt_status = NT_STATUS_LOGON_FAILURE;
} else {
DATA_BLOB unwrapped_out;
#ifndef GENSEC_SEND_UNWRAPPED_KRB5 /* This should be a switch for the torture code to set */
unwrapped_out = data_blob_talloc(out_mem_ctx, gensec_krb5_state->ticket.data, gensec_krb5_state->ticket.length);
/* wrap that up in a nice GSS-API wrapping */
*out = gensec_gssapi_gen_krb5_wrap(out_mem_ctx, &unwrapped_out, TOK_ID_KRB_AP_REQ);
#else
*out = data_blob_talloc(out_mem_ctx, gensec_krb5_state->ticket.data, gensec_krb5_state->ticket.length);
#endif
gensec_krb5_state->state_position = GENSEC_KRB5_CLIENT_MUTUAL_AUTH;
nt_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
}
return nt_status;
}
case GENSEC_KRB5_CLIENT_MUTUAL_AUTH:
{
krb5_data inbuf;
krb5_ap_rep_enc_part *repl = NULL;
uint8 tok_id[2];
DATA_BLOB unwrapped_in;
if (!gensec_gssapi_parse_krb5_wrap(out_mem_ctx, &in, &unwrapped_in, tok_id)) {
DEBUG(1,("gensec_gssapi_parse_krb5_wrap(mutual authentication) failed to parse\n"));
dump_data_pw("Mutual authentication message:\n", in.data, in.length);
return NT_STATUS_INVALID_PARAMETER;
}
/* TODO: check the tok_id */
inbuf.data = unwrapped_in.data;
inbuf.length = unwrapped_in.length;
ret = krb5_rd_rep(gensec_krb5_state->krb5_context,
gensec_krb5_state->krb5_auth_context,
&inbuf, &repl);
if (ret) {
DEBUG(1,("krb5_rd_rep (mutual authentication) failed (%s)\n",
error_message(ret)));
dump_data_pw("Mutual authentication message:\n", inbuf.data, inbuf.length);
nt_status = NT_STATUS_ACCESS_DENIED;
} else {
*out = data_blob(NULL, 0);
nt_status = NT_STATUS_OK;
gensec_krb5_state->state_position = GENSEC_KRB5_DONE;
}
if (repl) {
krb5_free_ap_rep_enc_part(gensec_krb5_state->krb5_context, repl);
}
return nt_status;
}
case GENSEC_KRB5_SERVER_START:
{
char *principal;
DATA_BLOB unwrapped_in;
DATA_BLOB unwrapped_out = data_blob(NULL, 0);
uint8 tok_id[2];
if (!in.data) {
*out = unwrapped_out;
return NT_STATUS_MORE_PROCESSING_REQUIRED;
}
/* Parse the GSSAPI wrapping, if it's there... (win2k3 allows it to be omited) */
if (!gensec_gssapi_parse_krb5_wrap(out_mem_ctx, &in, &unwrapped_in, tok_id)) {
nt_status = ads_verify_ticket(out_mem_ctx,
gensec_krb5_state->krb5_context,
gensec_krb5_state->krb5_auth_context,
lp_realm(),
gensec_get_target_service(gensec_security), &in,
&principal, &pac, &unwrapped_out,
&gensec_krb5_state->krb5_keyblock);
} else {
/* TODO: check the tok_id */
nt_status = ads_verify_ticket(out_mem_ctx,
gensec_krb5_state->krb5_context,
gensec_krb5_state->krb5_auth_context,
lp_realm(),
gensec_get_target_service(gensec_security),
&unwrapped_in,
&principal, &pac, &unwrapped_out,
&gensec_krb5_state->krb5_keyblock);
}
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
if (pac.data) {
gensec_krb5_state->pac = data_blob_talloc_reference(gensec_krb5_state, &pac);
}
if (NT_STATUS_IS_OK(nt_status)) {
gensec_krb5_state->state_position = GENSEC_KRB5_DONE;
/* wrap that up in a nice GSS-API wrapping */
#ifndef GENSEC_SEND_UNWRAPPED_KRB5
*out = gensec_gssapi_gen_krb5_wrap(out_mem_ctx, &unwrapped_out, TOK_ID_KRB_AP_REP);
#else
*out = unwrapped_out;
#endif
gensec_krb5_state->peer_principal = talloc_steal(gensec_krb5_state, principal);
}
return nt_status;
}
case GENSEC_KRB5_DONE:
return NT_STATUS_OK;
}
return NT_STATUS_INVALID_PARAMETER;
}
static NTSTATUS gensec_krb5_session_key(struct gensec_security *gensec_security,
DATA_BLOB *session_key)
{
struct gensec_krb5_state *gensec_krb5_state = gensec_security->private_data;
krb5_context context = gensec_krb5_state->krb5_context;
krb5_auth_context auth_context = gensec_krb5_state->krb5_auth_context;
krb5_keyblock *skey;
krb5_error_code err;
if (gensec_krb5_state->session_key.data) {
*session_key = gensec_krb5_state->session_key;
return NT_STATUS_OK;
}
switch (gensec_security->gensec_role) {
case GENSEC_CLIENT:
err = krb5_auth_con_getlocalsubkey(context, auth_context, &skey);
break;
case GENSEC_SERVER:
err = krb5_auth_con_getremotesubkey(context, auth_context, &skey);
break;
}
if (err == 0 && skey != NULL) {
DEBUG(10, ("Got KRB5 session key of length %d\n", KRB5_KEY_LENGTH(skey)));
gensec_krb5_state->session_key = data_blob_talloc(gensec_krb5_state,
KRB5_KEY_DATA(skey), KRB5_KEY_LENGTH(skey));
*session_key = gensec_krb5_state->session_key;
dump_data_pw("KRB5 Session Key:\n", session_key->data, session_key->length);
krb5_free_keyblock(context, skey);
return NT_STATUS_OK;
} else {
DEBUG(10, ("KRB5 error getting session key %d\n", err));
return NT_STATUS_NO_USER_SESSION_KEY;
}
}
static NTSTATUS gensec_krb5_session_info(struct gensec_security *gensec_security,
struct auth_session_info **session_info_out)
{
NTSTATUS nt_status;
struct gensec_krb5_state *gensec_krb5_state = gensec_security->private_data;
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info = NULL;
struct PAC_LOGON_INFO *logon_info;
char *p;
char *principal;
const char *username;
const char *realm;
*session_info_out = NULL;
principal = talloc_strdup(gensec_krb5_state, gensec_krb5_state->peer_principal);
p = strchr(principal, '@');
if (p) {
*p = '\0';
}
p++;
username = principal;
realm = p;
/* decode and verify the pac */
nt_status = gensec_krb5_decode_pac(gensec_krb5_state, &logon_info, gensec_krb5_state->pac,
gensec_krb5_state);
/* IF we have the PAC - otherwise we need to get this
* data from elsewere - local ldb, or (TODO) lookup of some
* kind...
*
* when heimdal can generate the PAC, we should fail if there's
* no PAC present
*/
if (NT_STATUS_IS_OK(nt_status)) {
union netr_Validation validation;
validation.sam3 = &logon_info->info3;
nt_status = make_server_info_netlogon_validation(gensec_krb5_state,
username,
&server_info,
3,
&validation);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
} else {
nt_status = sam_get_server_info(username, realm, gensec_krb5_state, &server_info);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
}
/* references the server_info into the session_info */
nt_status = make_session_info(gensec_krb5_state, server_info, &session_info);
talloc_free(server_info);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
talloc_free(principal);
nt_status = gensec_krb5_session_key(gensec_security, &session_info->session_key);
session_info->workstation = NULL;
*session_info_out = session_info;
return nt_status;
}
static BOOL gensec_krb5_have_feature(struct gensec_security *gensec_security,
uint32 feature)
{
if (feature & GENSEC_FEATURE_SESSION_KEY) {
return True;
}
return False;
}
static const struct gensec_security_ops gensec_krb5_security_ops = {
.name = "krb5",
.auth_type = DCERPC_AUTH_TYPE_KRB5,
.oid = GENSEC_OID_KERBEROS5,
.client_start = gensec_krb5_client_start,
.server_start = gensec_krb5_server_start,
.update = gensec_krb5_update,
.session_key = gensec_krb5_session_key,
.session_info = gensec_krb5_session_info,
.have_feature = gensec_krb5_have_feature,
.disabled_by_default = True
};
static const struct gensec_security_ops gensec_ms_krb5_security_ops = {
.name = "ms_krb5",
.auth_type = DCERPC_AUTH_TYPE_KRB5,
.oid = GENSEC_OID_KERBEROS5_OLD,
.client_start = gensec_krb5_client_start,
.server_start = gensec_krb5_server_start,
.update = gensec_krb5_update,
.session_key = gensec_krb5_session_key,
.session_info = gensec_krb5_session_info,
.have_feature = gensec_krb5_have_feature,
.disabled_by_default = True
};
NTSTATUS gensec_krb5_init(void)
{
NTSTATUS ret;
ret = gensec_register(&gensec_krb5_security_ops);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register '%s' gensec backend!\n",
gensec_krb5_security_ops.name));
return ret;
}
ret = gensec_register(&gensec_ms_krb5_security_ops);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register '%s' gensec backend!\n",
gensec_krb5_security_ops.name));
return ret;
}
return ret;
}
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