2 Unix SMB/CIFS implementation.
3 dump the remote SAM using rpc samsync operations
5 Copyright (C) Guenther Deschner 2008.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "libnet/libnet.h"
24 #if defined(HAVE_ADS) && defined(ENCTYPE_ARCFOUR_HMAC)
26 /****************************************************************
27 ****************************************************************/
29 static NTSTATUS keytab_ad_connect(TALLOC_CTX *mem_ctx,
30 const char *domain_name,
33 struct libnet_keytab_context *ctx)
38 struct netr_DsRGetDCNameInfo *info = NULL;
41 status = dsgetdcname(mem_ctx, NULL, domain_name, NULL, NULL, 0, &info);
42 if (!NT_STATUS_IS_OK(status)) {
46 dc = strip_hostname(info->dc_unc);
48 ads = ads_init(NULL, domain_name, dc);
49 NT_STATUS_HAVE_NO_MEMORY(ads);
51 if (getenv(KRB5_ENV_CCNAME) == NULL) {
52 setenv(KRB5_ENV_CCNAME, "MEMORY:libnet_samsync_keytab", 1);
55 ads->auth.user_name = SMB_STRDUP(username);
56 ads->auth.password = SMB_STRDUP(password);
58 ad_status = ads_connect_user_creds(ads);
59 if (!ADS_ERR_OK(ad_status)) {
60 return NT_STATUS_UNSUCCESSFUL;
65 ctx->dns_domain_name = talloc_strdup_upper(mem_ctx, ads->config.realm);
66 NT_STATUS_HAVE_NO_MEMORY(ctx->dns_domain_name);
71 /****************************************************************
72 ****************************************************************/
74 static NTSTATUS fetch_sam_entry_keytab(TALLOC_CTX *mem_ctx,
75 enum netr_SamDatabaseID database_id,
77 struct netr_DELTA_USER *r,
79 struct libnet_keytab_context *ctx)
81 struct libnet_keytab_entry entry;
83 if (memcmp(r->ntpassword.hash, ctx->zero_buf, 16) == 0) {
87 entry.name = talloc_strdup(mem_ctx, r->account_name.string);
88 entry.principal = talloc_asprintf(mem_ctx, "%s@%s",
89 r->account_name.string,
90 ctx->dns_domain_name);
91 entry.password = data_blob_talloc(mem_ctx, r->ntpassword.hash, 16);
92 entry.kvno = ads_get_kvno(ctx->ads, entry.name);
93 entry.enctype = ENCTYPE_NULL;
95 NT_STATUS_HAVE_NO_MEMORY(entry.name);
96 NT_STATUS_HAVE_NO_MEMORY(entry.principal);
97 NT_STATUS_HAVE_NO_MEMORY(entry.password.data);
100 ADD_TO_ARRAY(mem_ctx, struct libnet_keytab_entry, entry,
101 &ctx->entries, &ctx->count);
106 /****************************************************************
107 ****************************************************************/
109 NTSTATUS fetch_sam_entries_keytab(TALLOC_CTX *mem_ctx,
110 enum netr_SamDatabaseID database_id,
111 struct netr_DELTA_ENUM_ARRAY *r,
113 struct samsync_context *ctx)
115 NTSTATUS status = NT_STATUS_OK;
116 krb5_error_code ret = 0;
117 static struct libnet_keytab_context *keytab_ctx = NULL;
121 ret = libnet_keytab_init(mem_ctx, ctx->output_filename,
124 status = krb5_to_nt_status(ret);
129 status = keytab_ad_connect(mem_ctx,
134 if (!NT_STATUS_IS_OK(status)) {
138 for (i = 0; i < r->num_deltas; i++) {
140 if (r->delta_enum[i].delta_type != NETR_DELTA_USER) {
144 status = fetch_sam_entry_keytab(mem_ctx, database_id,
145 r->delta_enum[i].delta_id_union.rid,
146 r->delta_enum[i].delta_union.user,
149 if (!NT_STATUS_IS_OK(status)) {
156 ret = libnet_keytab_add(keytab_ctx);
158 status = krb5_to_nt_status(ret);
159 ctx->error_message = talloc_asprintf(mem_ctx,
160 "Failed to add entries to keytab %s: %s",
161 keytab_ctx->keytab_name, error_message(ret));
165 ctx->result_message = talloc_asprintf(mem_ctx,
166 "Vampired %d accounts to keytab %s",
168 keytab_ctx->keytab_name);
170 TALLOC_FREE(keytab_ctx);
175 TALLOC_FREE(keytab_ctx);
182 NTSTATUS fetch_sam_entries_keytab(TALLOC_CTX *mem_ctx,
183 enum netr_SamDatabaseID database_id,
184 struct netr_DELTA_ENUM_ARRAY *r,
186 struct samsync_context *ctx)
188 return NT_STATUS_NOT_SUPPORTED;
191 #endif /* defined(HAVE_ADS) && defined(ENCTYPE_ARCFOUR_HMAC) */