source: branches/samba-3.5.x/source4/auth/auth_sam_reply.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 9.8 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 Convert a server info struct into the form for PAC and NETLOGON replies
5
6 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004
7 Copyright (C) Stefan Metzmacher <metze@samba.org> 2005
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21*/
22
23#include "includes.h"
24#include "auth/auth.h"
25#include "libcli/security/security.h"
26#include "librpc/gen_ndr/ndr_netlogon.h"
27#include "auth/auth_sam_reply.h"
28
29NTSTATUS auth_convert_server_info_sambaseinfo(TALLOC_CTX *mem_ctx,
30 struct auth_serversupplied_info *server_info,
31 struct netr_SamBaseInfo **_sam)
32{
33 struct netr_SamBaseInfo *sam = talloc_zero(mem_ctx, struct netr_SamBaseInfo);
34 NT_STATUS_HAVE_NO_MEMORY(sam);
35
36 sam->domain_sid = dom_sid_dup(mem_ctx, server_info->account_sid);
37 NT_STATUS_HAVE_NO_MEMORY(sam->domain_sid);
38 sam->domain_sid->num_auths--;
39
40 sam->last_logon = server_info->last_logon;
41 sam->last_logoff = server_info->last_logoff;
42 sam->acct_expiry = server_info->acct_expiry;
43 sam->last_password_change = server_info->last_password_change;
44 sam->allow_password_change = server_info->allow_password_change;
45 sam->force_password_change = server_info->force_password_change;
46
47 sam->account_name.string = server_info->account_name;
48 sam->full_name.string = server_info->full_name;
49 sam->logon_script.string = server_info->logon_script;
50 sam->profile_path.string = server_info->profile_path;
51 sam->home_directory.string = server_info->home_directory;
52 sam->home_drive.string = server_info->home_drive;
53
54 sam->logon_count = server_info->logon_count;
55 sam->bad_password_count = sam->bad_password_count;
56 sam->rid = server_info->account_sid->sub_auths[server_info->account_sid->num_auths-1];
57 sam->primary_gid = server_info->primary_group_sid->sub_auths[server_info->primary_group_sid->num_auths-1];
58
59 sam->groups.count = 0;
60 sam->groups.rids = NULL;
61
62 if (server_info->n_domain_groups > 0) {
63 int i;
64 sam->groups.rids = talloc_array(sam, struct samr_RidWithAttribute,
65 server_info->n_domain_groups);
66
67 if (sam->groups.rids == NULL)
68 return NT_STATUS_NO_MEMORY;
69
70 for (i=0; i<server_info->n_domain_groups; i++) {
71 struct dom_sid *group_sid = server_info->domain_groups[i];
72 if (!dom_sid_in_domain(sam->domain_sid, group_sid)) {
73 /* We handle this elsewhere */
74 continue;
75 }
76 sam->groups.rids[sam->groups.count].rid =
77 group_sid->sub_auths[group_sid->num_auths-1];
78
79 sam->groups.rids[sam->groups.count].attributes =
80 SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT | SE_GROUP_ENABLED;
81 sam->groups.count += 1;
82 }
83 }
84
85 sam->user_flags = 0; /* w2k3 uses NETLOGON_EXTRA_SIDS | NETLOGON_NTLMV2_ENABLED */
86 sam->acct_flags = server_info->acct_flags;
87 sam->logon_server.string = server_info->logon_server;
88 sam->domain.string = server_info->domain_name;
89
90 ZERO_STRUCT(sam->unknown);
91
92 ZERO_STRUCT(sam->key);
93 if (server_info->user_session_key.length == sizeof(sam->key.key)) {
94 memcpy(sam->key.key, server_info->user_session_key.data, sizeof(sam->key.key));
95 }
96
97 ZERO_STRUCT(sam->LMSessKey);
98 if (server_info->lm_session_key.length == sizeof(sam->LMSessKey.key)) {
99 memcpy(sam->LMSessKey.key, server_info->lm_session_key.data,
100 sizeof(sam->LMSessKey.key));
101 }
102
103 *_sam = sam;
104
105 return NT_STATUS_OK;
106}
107
108NTSTATUS auth_convert_server_info_saminfo3(TALLOC_CTX *mem_ctx,
109 struct auth_serversupplied_info *server_info,
110 struct netr_SamInfo3 **_sam3)
111{
112 struct netr_SamBaseInfo *sam;
113 struct netr_SamInfo3 *sam3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
114 NTSTATUS status;
115 int i;
116 NT_STATUS_HAVE_NO_MEMORY(sam3);
117
118 status = auth_convert_server_info_sambaseinfo(mem_ctx, server_info, &sam);
119 if (!NT_STATUS_IS_OK(status)) {
120 return status;
121 }
122 sam3->base = *sam;
123 sam3->sidcount = 0;
124 sam3->sids = NULL;
125
126
127 sam3->sids = talloc_array(sam, struct netr_SidAttr,
128 server_info->n_domain_groups);
129 NT_STATUS_HAVE_NO_MEMORY(sam3->sids);
130
131 for (i=0; i<server_info->n_domain_groups; i++) {
132 if (dom_sid_in_domain(sam->domain_sid, server_info->domain_groups[i])) {
133 continue;
134 }
135 sam3->sids[sam3->sidcount].sid = talloc_reference(sam3->sids,server_info->domain_groups[i]);
136 sam3->sids[sam3->sidcount].attributes =
137 SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT | SE_GROUP_ENABLED;
138 sam3->sidcount += 1;
139 }
140 if (sam3->sidcount) {
141 sam3->base.user_flags |= NETLOGON_EXTRA_SIDS;
142 } else {
143 sam3->sids = NULL;
144 }
145 *_sam3 = sam3;
146
147 return NT_STATUS_OK;
148}
149
150/**
151 * Make a server_info struct from the info3 returned by a domain logon
152 */
153NTSTATUS make_server_info_netlogon_validation(TALLOC_CTX *mem_ctx,
154 const char *account_name,
155 uint16_t validation_level,
156 union netr_Validation *validation,
157 struct auth_serversupplied_info **_server_info)
158{
159 struct auth_serversupplied_info *server_info;
160 struct netr_SamBaseInfo *base = NULL;
161 int i;
162
163 switch (validation_level) {
164 case 2:
165 if (!validation || !validation->sam2) {
166 return NT_STATUS_INVALID_PARAMETER;
167 }
168 base = &validation->sam2->base;
169 break;
170 case 3:
171 if (!validation || !validation->sam3) {
172 return NT_STATUS_INVALID_PARAMETER;
173 }
174 base = &validation->sam3->base;
175 break;
176 case 6:
177 if (!validation || !validation->sam6) {
178 return NT_STATUS_INVALID_PARAMETER;
179 }
180 base = &validation->sam6->base;
181 break;
182 default:
183 return NT_STATUS_INVALID_LEVEL;
184 }
185
186 server_info = talloc(mem_ctx, struct auth_serversupplied_info);
187 NT_STATUS_HAVE_NO_MEMORY(server_info);
188
189 /*
190 Here is where we should check the list of
191 trusted domains, and verify that the SID
192 matches.
193 */
194 server_info->account_sid = dom_sid_add_rid(server_info, base->domain_sid, base->rid);
195 NT_STATUS_HAVE_NO_MEMORY(server_info->account_sid);
196
197
198 server_info->primary_group_sid = dom_sid_add_rid(server_info, base->domain_sid, base->primary_gid);
199 NT_STATUS_HAVE_NO_MEMORY(server_info->primary_group_sid);
200
201 server_info->n_domain_groups = base->groups.count;
202 if (base->groups.count) {
203 server_info->domain_groups = talloc_array(server_info, struct dom_sid*, base->groups.count);
204 NT_STATUS_HAVE_NO_MEMORY(server_info->domain_groups);
205 } else {
206 server_info->domain_groups = NULL;
207 }
208
209 for (i = 0; i < base->groups.count; i++) {
210 server_info->domain_groups[i] = dom_sid_add_rid(server_info, base->domain_sid, base->groups.rids[i].rid);
211 NT_STATUS_HAVE_NO_MEMORY(server_info->domain_groups[i]);
212 }
213
214 /* Copy 'other' sids. We need to do sid filtering here to
215 prevent possible elevation of privileges. See:
216
217 http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
218 */
219
220 if (validation_level == 3) {
221 struct dom_sid **dgrps = server_info->domain_groups;
222 size_t sidcount = server_info->n_domain_groups + validation->sam3->sidcount;
223 size_t n_dgrps = server_info->n_domain_groups;
224
225 if (validation->sam3->sidcount > 0) {
226 dgrps = talloc_realloc(server_info, dgrps, struct dom_sid*, sidcount);
227 NT_STATUS_HAVE_NO_MEMORY(dgrps);
228
229 for (i = 0; i < validation->sam3->sidcount; i++) {
230 dgrps[n_dgrps + i] = talloc_reference(dgrps, validation->sam3->sids[i].sid);
231 }
232 }
233
234 server_info->n_domain_groups = sidcount;
235 server_info->domain_groups = dgrps;
236
237 /* Where are the 'global' sids?... */
238 }
239
240 if (base->account_name.string) {
241 server_info->account_name = talloc_reference(server_info, base->account_name.string);
242 } else {
243 server_info->account_name = talloc_strdup(server_info, account_name);
244 NT_STATUS_HAVE_NO_MEMORY(server_info->account_name);
245 }
246
247 server_info->domain_name = talloc_reference(server_info, base->domain.string);
248 server_info->full_name = talloc_reference(server_info, base->full_name.string);
249 server_info->logon_script = talloc_reference(server_info, base->logon_script.string);
250 server_info->profile_path = talloc_reference(server_info, base->profile_path.string);
251 server_info->home_directory = talloc_reference(server_info, base->home_directory.string);
252 server_info->home_drive = talloc_reference(server_info, base->home_drive.string);
253 server_info->logon_server = talloc_reference(server_info, base->logon_server.string);
254 server_info->last_logon = base->last_logon;
255 server_info->last_logoff = base->last_logoff;
256 server_info->acct_expiry = base->acct_expiry;
257 server_info->last_password_change = base->last_password_change;
258 server_info->allow_password_change = base->allow_password_change;
259 server_info->force_password_change = base->force_password_change;
260 server_info->logon_count = base->logon_count;
261 server_info->bad_password_count = base->bad_password_count;
262 server_info->acct_flags = base->acct_flags;
263
264 server_info->authenticated = true;
265
266 /* ensure we are never given NULL session keys */
267
268 if (all_zero(base->key.key, sizeof(base->key.key))) {
269 server_info->user_session_key = data_blob(NULL, 0);
270 } else {
271 server_info->user_session_key = data_blob_talloc(server_info, base->key.key, sizeof(base->key.key));
272 NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data);
273 }
274
275 if (all_zero(base->LMSessKey.key, sizeof(base->LMSessKey.key))) {
276 server_info->lm_session_key = data_blob(NULL, 0);
277 } else {
278 server_info->lm_session_key = data_blob_talloc(server_info, base->LMSessKey.key, sizeof(base->LMSessKey.key));
279 NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data);
280 }
281
282 ZERO_STRUCT(server_info->pac_srv_sig);
283 ZERO_STRUCT(server_info->pac_kdc_sig);
284
285 *_server_info = server_info;
286 return NT_STATUS_OK;
287}
288
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