-/*
+/*
Unix SMB/CIFS implementation.
kerberos authorization data (PAC) utility library
- Copyright (C) Jim McDonough 2003
-
+ Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
+ Copyright (C) Andrew Tridgell 2001
+ Copyright (C) Luke Howard 2002-2003
+ Copyright (C) Stefan Metzmacher 2004-2005
+ Copyright (C) Guenther Deschner 2005,2007,2008
+
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
+ the Free Software Foundation; either version 3 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.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "librpc/gen_ndr/ndr_krb5pac.h"
+#include "smb_krb5.h"
+#include "libads/kerberos_proto.h"
+#include "auth/common_auth.h"
+#include "lib/param/param.h"
+#include "librpc/crypto/gse.h"
+#include "auth/gensec/gensec.h"
+#include "auth/gensec/gensec_internal.h" /* TODO: remove this */
+#include "../libcli/auth/spnego.h"
+#include "krb5_errs.h"
#ifdef HAVE_KRB5
-static DATA_BLOB unwrap_pac(DATA_BLOB *auth_data)
+#include "auth/kerberos/pac_utils.h"
+
+struct smb_krb5_context;
+
+/****************************************************************
+Callback to get the PAC_LOGON_INFO from the blob
+****************************************************************/
+static NTSTATUS kerberos_fetch_pac(struct auth4_context *auth_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct smb_krb5_context *smb_krb5_context,
+ DATA_BLOB *pac_blob,
+ const char *princ_name,
+ const struct tsocket_address *remote_address,
+ uint32_t session_info_flags,
+ struct auth_session_info **session_info)
{
- DATA_BLOB pac_contents;
- ASN1_DATA data;
- int data_type;
-
- asn1_load(&data, *auth_data);
- asn1_start_tag(&data, ASN1_SEQUENCE(0));
- asn1_start_tag(&data, ASN1_SEQUENCE(0));
- asn1_start_tag(&data, ASN1_CONTEXT(0));
- asn1_read_Integer(&data, &data_type);
- asn1_end_tag(&data);
- asn1_start_tag(&data, ASN1_CONTEXT(1));
- asn1_read_OctetString(&data, &pac_contents);
- asn1_end_tag(&data);
- asn1_end_tag(&data);
- asn1_end_tag(&data);
- return pac_contents;
-}
+ TALLOC_CTX *tmp_ctx;
+ struct PAC_DATA *pac_data = NULL;
+ struct PAC_DATA_CTR *pac_data_ctr = NULL;
+ NTSTATUS status = NT_STATUS_INTERNAL_ERROR;
+
+ tmp_ctx = talloc_new(mem_ctx);
+ if (!tmp_ctx) {
+ return NT_STATUS_NO_MEMORY;
+ }
-static BOOL pac_io_krb_sids(const char *desc, KRB_SID_AND_ATTRS *sid_and_attr,
- prs_struct *ps, int depth)
-{
- if (NULL == sid_and_attr)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_krb_sids");
- depth++;
-
- if (UNMARSHALLING(ps)) {
- sid_and_attr->sid =
- (DOM_SID2 * ) prs_alloc_mem(ps, sizeof(DOM_SID2));
- if (!sid_and_attr->sid) {
- DEBUG(3, ("No memory available\n"));
- return False;
+ if (pac_blob != NULL) {
+ status = kerberos_decode_pac(tmp_ctx,
+ *pac_blob,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ 0,
+ &pac_data);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
}
- }
- if(!smb_io_dom_sid2("sid", sid_and_attr->sid, ps, depth))
- return False;
+ pac_data_ctr = talloc(mem_ctx, struct PAC_DATA_CTR);
+ if (pac_data_ctr == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
- return True;
-}
+ talloc_set_name_const(pac_data_ctr, "struct PAC_DATA_CTR");
+ pac_data_ctr->pac_data = talloc_steal(pac_data_ctr, pac_data);
+ pac_data_ctr->pac_blob = data_blob_talloc(pac_data_ctr,
+ pac_blob->data,
+ pac_blob->length);
-static BOOL pac_io_krb_attrs(const char *desc, KRB_SID_AND_ATTRS *sid_and_attr,
- prs_struct *ps, int depth)
-{
- if (NULL == sid_and_attr)
- return False;
+ auth_ctx->private_data = talloc_steal(auth_ctx, pac_data_ctr);
+ }
- prs_debug(ps, depth, desc, "pac_io_krb_attrs");
- depth++;
+ *session_info = talloc_zero(mem_ctx, struct auth_session_info);
+ if (!*session_info) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ status = NT_STATUS_OK;
- if (!prs_uint32("sid_ptr", ps, depth, &sid_and_attr->sid_ptr))
- return False;
- if (!prs_uint32("attrs", ps, depth, &sid_and_attr->attrs))
- return False;
+done:
+ TALLOC_FREE(tmp_ctx);
- return True;
+ return status;
}
-static BOOL pac_io_krb_sid_and_attr_array(const char *desc,
- KRB_SID_AND_ATTR_ARRAY *array,
- uint32 num,
- prs_struct *ps, int depth)
+/*
+ * Given the username/password, do a kinit, store the ticket in
+ * cache_name if specified, and return the PAC_LOGON_INFO (the
+ * structure containing the important user information such as
+ * groups).
+ */
+NTSTATUS kerberos_return_pac(TALLOC_CTX *mem_ctx,
+ const char *name,
+ const char *pass,
+ time_t time_offset,
+ time_t *expire_time,
+ time_t *renew_till_time,
+ const char *cache_name,
+ bool request_pac,
+ bool add_netbios_addr,
+ time_t renewable_time,
+ const char *impersonate_princ_s,
+ const char *local_service,
+ struct PAC_DATA_CTR **_pac_data_ctr)
{
- int i;
-
- if (NULL == array)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_krb_sid_and_attr_array");
- depth++;
-
-
- if (!prs_uint32("count", ps, depth, &array->count))
- return False;
-
- if (UNMARSHALLING(ps)) {
- array->krb_sid_and_attrs = (KRB_SID_AND_ATTRS *)
- prs_alloc_mem(ps, sizeof(KRB_SID_AND_ATTRS) * num);
- if (!array->krb_sid_and_attrs) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
+ krb5_error_code ret;
+ NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
+ DATA_BLOB tkt, tkt_wrapped, ap_rep, sesskey1;
+ const char *auth_princ = NULL;
+ const char *cc = "MEMORY:kerberos_return_pac";
+ struct auth_session_info *session_info;
+ struct gensec_security *gensec_server_context;
+ const struct gensec_security_ops **backends;
+ struct gensec_settings *gensec_settings;
+ size_t idx = 0;
+ struct auth4_context *auth_context;
+ struct loadparm_context *lp_ctx;
+ struct PAC_DATA_CTR *pac_data_ctr = NULL;
+
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
+
+ ZERO_STRUCT(tkt);
+ ZERO_STRUCT(ap_rep);
+ ZERO_STRUCT(sesskey1);
+
+ if (!name || !pass) {
+ return NT_STATUS_INVALID_PARAMETER;
}
- for (i=0; i<num; i++) {
- if (!pac_io_krb_attrs(desc,
- &array->krb_sid_and_attrs[i],
- ps, depth))
- return False;
-
+ if (cache_name) {
+ cc = cache_name;
}
- for (i=0; i<num; i++) {
- if (!pac_io_krb_sids(desc,
- &array->krb_sid_and_attrs[i],
- ps, depth))
- return False;
+ if (!strchr_m(name, '@')) {
+ auth_princ = talloc_asprintf(mem_ctx, "%s@%s", name,
+ lp_realm());
+ } else {
+ auth_princ = name;
+ }
+ NT_STATUS_HAVE_NO_MEMORY(auth_princ);
+
+ ret = kerberos_kinit_password_ext(auth_princ,
+ pass,
+ time_offset,
+ expire_time,
+ renew_till_time,
+ cc,
+ request_pac,
+ add_netbios_addr,
+ renewable_time,
+ &status);
+ if (ret) {
+ DEBUG(1,("kinit failed for '%s' with: %s (%d)\n",
+ auth_princ, error_message(ret), ret));
+ /* status already set */
+ goto out;
}
- return True;
-
-}
+ DEBUG(10,("got TGT for %s in %s\n", auth_princ, cc));
+ if (expire_time) {
+ DEBUGADD(10,("\tvalid until: %s (%d)\n",
+ http_timestring(talloc_tos(), *expire_time),
+ (int)*expire_time));
+ }
+ if (renew_till_time) {
+ DEBUGADD(10,("\trenewable till: %s (%d)\n",
+ http_timestring(talloc_tos(), *renew_till_time),
+ (int)*renew_till_time));
+ }
-static BOOL pac_io_pac_logon_info(const char *desc, PAC_LOGON_INFO *info,
- prs_struct *ps, int depth)
-{
- uint32 garbage;
- if (NULL == info)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_logon_info");
- depth++;
-
- if (!prs_uint32("unknown", ps, depth, &garbage))
- return False;
- if (!prs_uint32("unknown", ps, depth, &garbage))
- return False;
- if (!prs_uint32("bufferlen", ps, depth, &garbage))
- return False;
- if (!prs_uint32("bufferlenhi", ps, depth, &garbage))
- return False;
- if (!prs_uint32("pointer", ps, depth, &garbage))
- return False;
-
- if (!smb_io_time("logon_time", &info->logon_time, ps, depth))
- return False;
- if (!smb_io_time("logoff_time", &info->logoff_time, ps, depth))
- return False;
- if (!smb_io_time("kickoff_time", &info->kickoff_time, ps, depth))
- return False;
- if (!smb_io_time("pass_last_set_time", &info->pass_last_set_time,
- ps, depth))
- return False;
- if (!smb_io_time("pass_can_change_time", &info->pass_can_change_time,
- ps, depth))
- return False;
- if (!smb_io_time("pass_must_change_time", &info->pass_must_change_time,
- ps, depth))
- return False;
-
- if (!smb_io_unihdr("hdr_user_name", &info->hdr_user_name, ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_full_name", &info->hdr_full_name, ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_logon_script", &info->hdr_logon_script,
- ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_profile_path", &info->hdr_profile_path,
- ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_home_dir", &info->hdr_home_dir, ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_dir_drive", &info->hdr_dir_drive, ps, depth))
- return False;
-
- if (!prs_uint16("logon_count", ps, depth, &info->logon_count))
- return False;
- if (!prs_uint16("reserved12", ps, depth, &info->reserved12))
- return False;
- if (!prs_uint32("user_rid", ps, depth, &info->user_rid))
- return False;
- if (!prs_uint32("group_rid", ps, depth, &info->group_rid))
- return False;
- if (!prs_uint32("group_count", ps, depth, &info->group_count))
- return False;
- /* I haven't seen this contain anything yet, but when it does
- we will have to make sure we decode the contents in the middle
- all the unistr2s ... */
- if (!prs_uint32("group_mem_ptr", ps, depth,
- &info->group_membership_ptr))
- return False;
- if (!prs_uint32("user_flags", ps, depth, &info->user_flags))
- return False;
-
- if (!prs_uint32("reserved13.0", ps, depth, &info->reserved13[0]))
- return False;
- if (!prs_uint32("reserved13.1", ps, depth, &info->reserved13[1]))
- return False;
- if (!prs_uint32("reserved13.2", ps, depth, &info->reserved13[2]))
- return False;
- if (!prs_uint32("reserved13.3", ps, depth, &info->reserved13[3]))
- return False;
-
- if (!smb_io_unihdr("hdr_dom_controller",
- &info->hdr_dom_controller, ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_dom_name", &info->hdr_dom_name, ps, depth))
- return False;
-
- /* this should be followed, but just get ptr for now */
- if (!prs_uint32("ptr_dom_sid", ps, depth, &info->ptr_dom_sid))
- return False;
-
- if (!prs_uint32("reserved16.0", ps, depth, &info->reserved16[0]))
- return False;
- if (!prs_uint32("reserved16.1", ps, depth, &info->reserved16[1]))
- return False;
-
- /* might be acb_info */
- if (!prs_uint32("reserved17", ps, depth, &info->reserved17))
- return False;
-
-
- if (!prs_uint32("reserved18.0", ps, depth, &info->reserved18[0]))
- return False;
- if (!prs_uint32("reserved18.1", ps, depth, &info->reserved18[1]))
- return False;
- if (!prs_uint32("reserved18.2", ps, depth, &info->reserved18[2]))
- return False;
- if (!prs_uint32("reserved18.3", ps, depth, &info->reserved18[3]))
- return False;
- if (!prs_uint32("reserved18.4", ps, depth, &info->reserved18[4]))
- return False;
- if (!prs_uint32("reserved18.5", ps, depth, &info->reserved18[5]))
- return False;
- if (!prs_uint32("reserved18.6", ps, depth, &info->reserved18[6]))
- return False;
-
- if (!prs_uint32("sid_count", ps, depth, &info->sid_count))
- return False;
- if (!prs_uint32("ptr_extra_sids", ps, depth, &info->ptr_extra_sids))
- return False;
- if (!prs_uint32("ptr_res_group_dom_sid", ps, depth,
- &info->ptr_res_group_dom_sid))
- return False;
- if (!prs_uint32("res_group_count", ps, depth, &info->res_group_count))
- return False;
- if (!prs_uint32("ptr_res_group_sids", ps, depth,
- &info->ptr_res_group_sids))
- return False;
-
- if(!smb_io_unistr2("uni_user_name", &info->uni_user_name,
- info->hdr_user_name.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_full_name", &info->uni_full_name,
- info->hdr_full_name.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_logon_script", &info->uni_logon_script,
- info->hdr_logon_script.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_profile_path", &info->uni_profile_path,
- info->hdr_profile_path.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_home_dir", &info->uni_home_dir,
- info->hdr_home_dir.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_dir_drive", &info->uni_dir_drive,
- info->hdr_dir_drive.buffer, ps, depth))
- return False;
-
- /* the group membership list will need to be handled here */
-
- if(!smb_io_unistr2("uni_dom_controller", &info->uni_dom_controller,
- info->hdr_dom_controller.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_dom_name", &info->uni_dom_name,
- info->hdr_dom_name.buffer, ps, depth))
- return False;
-
- if(info->ptr_dom_sid)
- if(!smb_io_dom_sid2("dom_sid", &info->dom_sid, ps, depth))
- return False;
-
-
- if (info->sid_count && info->ptr_extra_sids) {
- if (!pac_io_krb_sid_and_attr_array("extra_sids",
- &info->extra_sids,
- info->sid_count,
- ps, depth))
- return False;
- }
-
-
- return True;
-}
+ /* we cannot continue with krb5 when UF_DONT_REQUIRE_PREAUTH is set,
+ * in that case fallback to NTLM - gd */
+ if (expire_time && renew_till_time &&
+ (*expire_time == 0) && (*renew_till_time == 0)) {
+ return NT_STATUS_INVALID_LOGON_TYPE;
+ }
-static BOOL pac_io_pac_signature_data(const char *desc,
- PAC_SIGNATURE_DATA *data, uint32 length,
- prs_struct *ps, int depth)
-{
- uint32 siglen = length - sizeof(uint32);
- if (NULL == data)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_signature_data");
- depth++;
-
- if (!prs_uint32("type", ps, depth, &data->type))
- return False;
- if (UNMARSHALLING(ps)) {
- data->signature = prs_alloc_mem(ps, siglen);
- if (!data->signature) {
- DEBUG(3, ("No memory available\n"));
- return False;
+ ret = ads_krb5_cli_get_ticket(mem_ctx,
+ local_service,
+ time_offset,
+ &tkt,
+ &sesskey1,
+ 0,
+ cc,
+ NULL,
+ impersonate_princ_s);
+ if (ret) {
+ DEBUG(1,("failed to get ticket for %s: %s\n",
+ local_service, error_message(ret)));
+ if (impersonate_princ_s) {
+ DEBUGADD(1,("tried S4U2SELF impersonation as: %s\n",
+ impersonate_princ_s));
}
+ status = krb5_to_nt_status(ret);
+ goto out;
}
- if (!prs_uint8s(False, "signature", ps, depth, data->signature,siglen))
- return False;
-
- return True;
-}
-static BOOL pac_io_pac_info_hdr_ctr(const char *desc, PAC_INFO_HDR *hdr,
- prs_struct *ps, int depth)
-{
- if (NULL == hdr)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_info_hdr_ctr");
- depth++;
+ /* wrap that up in a nice GSS-API wrapping */
+ tkt_wrapped = spnego_gen_krb5_wrap(tmp_ctx, tkt, TOK_ID_KRB_AP_REQ);
+ if (tkt_wrapped.data == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto out;
+ }
- if (!prs_align(ps))
- return False;
+ auth_context = talloc_zero(tmp_ctx, struct auth4_context);
+ if (auth_context == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto out;
+ }
+ auth_context->generate_session_info_pac = kerberos_fetch_pac;
- if (hdr->offset != prs_offset(ps)) {
- DEBUG(5, ("offset in header(x%x) and data(x%x) do not match\n",
- hdr->offset, prs_offset(ps)));
- prs_set_offset(ps, hdr->offset);
+ lp_ctx = loadparm_init_s3(tmp_ctx, loadparm_s3_helpers());
+ if (lp_ctx == NULL) {
+ status = NT_STATUS_INVALID_SERVER_STATE;
+ DEBUG(10, ("loadparm_init_s3 failed\n"));
+ goto out;
}
- if (UNMARSHALLING(ps) && hdr->size > 0) {
- hdr->ctr = (PAC_INFO_CTR *)
- prs_alloc_mem(ps, sizeof(PAC_INFO_CTR));
- if (!hdr->ctr) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
+ gensec_settings = lpcfg_gensec_settings(tmp_ctx, lp_ctx);
+ if (gensec_settings == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ DEBUG(10, ("lpcfg_gensec_settings failed\n"));
+ goto out;
}
- switch(hdr->type) {
- case PAC_TYPE_LOGON_INFO:
- DEBUG(5, ("PAC_TYPE_LOGON_INFO\n"));
- if (UNMARSHALLING(ps))
- hdr->ctr->pac.logon_info = (PAC_LOGON_INFO *)
- prs_alloc_mem(ps, sizeof(PAC_LOGON_INFO));
- if (!hdr->ctr->pac.logon_info) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- if (!pac_io_pac_logon_info(desc, hdr->ctr->pac.logon_info,
- ps, depth))
- return False;
- break;
-
- case PAC_TYPE_SERVER_CHECKSUM:
- DEBUG(5, ("PAC_TYPE_SERVER_CHECKSUM\n"));
- if (UNMARSHALLING(ps))
- hdr->ctr->pac.srv_cksum = (PAC_SIGNATURE_DATA *)
- prs_alloc_mem(ps, sizeof(PAC_SIGNATURE_DATA));
- if (!hdr->ctr->pac.srv_cksum) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- if (!pac_io_pac_signature_data(desc, hdr->ctr->pac.srv_cksum,
- hdr->size, ps, depth))
- return False;
- break;
-
- case PAC_TYPE_PRIVSVR_CHECKSUM:
- DEBUG(5, ("PAC_TYPE_PRIVSVR_CHECKSUM\n"));
- if (UNMARSHALLING(ps))
- hdr->ctr->pac.privsrv_cksum = (PAC_SIGNATURE_DATA *)
- prs_alloc_mem(ps, sizeof(PAC_SIGNATURE_DATA));
- if (!hdr->ctr->pac.privsrv_cksum) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- if (!pac_io_pac_signature_data(desc,
- hdr->ctr->pac.privsrv_cksum,
- hdr->size, ps, depth))
- return False;
- break;
-
- default:
- /* dont' know, so we need to skip it */
- DEBUG(3, ("unknown PAC type %d\n", hdr->type));
- prs_set_offset(ps, prs_offset(ps) + hdr->size);
+ backends = talloc_zero_array(gensec_settings,
+ const struct gensec_security_ops *, 2);
+ if (backends == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto out;
}
+ gensec_settings->backends = backends;
- return True;
-}
+ gensec_init();
-static BOOL pac_io_pac_info_hdr(const char *desc, PAC_INFO_HDR *hdr,
- prs_struct *ps, int depth)
-{
- if (NULL == hdr)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_info_hdr");
- depth++;
-
- if (!prs_align(ps))
- return False;
- if (!prs_uint32("type", ps, depth, &hdr->type))
- return False;
- if (!prs_uint32("size", ps, depth, &hdr->size))
- return False;
- if (!prs_uint32("offset", ps, depth, &hdr->offset))
- return False;
- if (!prs_uint32("offsethi", ps, depth, &hdr->offsethi))
- return False;
-
- return True;
-}
+ backends[idx++] = &gensec_gse_krb5_security_ops;
-static BOOL pac_io_pac_data(const char *desc, PAC_DATA *data,
- prs_struct *ps, int depth)
-{
- int i;
-
- if (NULL == data)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_data");
- depth++;
-
- if (!prs_align(ps))
- return False;
- if (!prs_uint32("num_buffers", ps, depth, &data->num_buffers))
- return False;
- if (!prs_uint32("version", ps, depth, &data->version))
- return False;
-
- if (UNMARSHALLING(ps) && data->num_buffers > 0) {
- if ((data->pac_info_hdr_ptr = (PAC_INFO_HDR *)
- prs_alloc_mem(ps, sizeof(PAC_INFO_HDR) *
- data->num_buffers)) == NULL) {
- return False;
- }
+ status = gensec_server_start(tmp_ctx, gensec_settings,
+ auth_context, &gensec_server_context);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, (__location__ "Failed to start server-side GENSEC to validate a Kerberos ticket: %s\n", nt_errstr(status)));
+ goto out;
}
- for (i=0; i<data->num_buffers; i++) {
- if (!pac_io_pac_info_hdr(desc, &data->pac_info_hdr_ptr[i], ps,
- depth))
- return False;
+ talloc_unlink(tmp_ctx, lp_ctx);
+ talloc_unlink(tmp_ctx, gensec_settings);
+ talloc_unlink(tmp_ctx, auth_context);
+
+ /* Session info is not complete, do not pass to auth log */
+ gensec_want_feature(gensec_server_context, GENSEC_FEATURE_NO_AUTHZ_LOG);
+
+ status = gensec_start_mech_by_oid(gensec_server_context, GENSEC_OID_KERBEROS5);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, (__location__ "Failed to start server-side GENSEC krb5 to validate a Kerberos ticket: %s\n", nt_errstr(status)));
+ goto out;
}
- for (i=0; i<data->num_buffers; i++) {
- if (!pac_io_pac_info_hdr_ctr(desc, &data->pac_info_hdr_ptr[i],
- ps, depth))
- return False;
+ /* Do a client-server update dance */
+ status = gensec_update(gensec_server_context, tmp_ctx, tkt_wrapped, &ap_rep);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("gensec_update() failed: %s\n", nt_errstr(status)));
+ goto out;
}
- return True;
-}
+ /* Now return the PAC information to the callers. We ingore
+ * the session_info and instead pick out the PAC via the
+ * private_data on the auth_context */
+ status = gensec_session_info(gensec_server_context, tmp_ctx, &session_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("Unable to obtain PAC via gensec_session_info\n"));
+ goto out;
+ }
-PAC_DATA *decode_pac_data(DATA_BLOB *auth_data, TALLOC_CTX *ctx)
-{
- DATA_BLOB pac_data_blob = unwrap_pac(auth_data);
- prs_struct ps;
- PAC_DATA *pac_data;
+ pac_data_ctr = talloc_get_type_abort(gensec_server_context->auth_context->private_data,
+ struct PAC_DATA_CTR);
+ if (pac_data_ctr == NULL) {
+ DEBUG(1,("no PAC\n"));
+ status = NT_STATUS_INVALID_PARAMETER;
+ goto out;
+ }
- DEBUG(5,("dump_pac_data\n"));
- prs_init(&ps, pac_data_blob.length, ctx, UNMARSHALL);
- prs_copy_data_in(&ps, pac_data_blob.data, pac_data_blob.length);
- prs_set_offset(&ps, 0);
+ *_pac_data_ctr = talloc_move(mem_ctx, &pac_data_ctr);
- pac_data = (PAC_DATA *) talloc_zero(ctx, sizeof(PAC_DATA));
- pac_io_pac_data("pac data", pac_data, &ps, 0);
+out:
+ talloc_free(tmp_ctx);
+ if (cc != cache_name) {
+ ads_kdestroy(cc);
+ }
- prs_mem_free(&ps);
+ data_blob_free(&tkt);
+ data_blob_free(&ap_rep);
+ data_blob_free(&sesskey1);
- return pac_data;
+ return status;
}
#endif
git.samba.org / nivanova / samba-autobuild / .git / blobdiff