Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 : SMB torture tester
4 : Copyright (C) Stefan Metzmacher 2007
5 : Copyright (C) Andrew Bartlett <abartlet@samba.org> 2012
6 : Copyright (C) Christof Schmit <christof.schmitt@us.ibm.com> 2012
7 :
8 : This program is free software; you can redistribute it and/or modify
9 : it under the terms of the GNU General Public License as published by
10 : the Free Software Foundation; either version 3 of the License, or
11 : (at your option) any later version.
12 :
13 : This program is distributed in the hope that it will be useful,
14 : but WITHOUT ANY WARRANTY; without even the implied warranty of
15 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 : GNU General Public License for more details.
17 :
18 : You should have received a copy of the GNU General Public License
19 : along with this program. If not, see <http://www.gnu.org/licenses/>.
20 : */
21 :
22 : #include "includes.h"
23 : #include "torture/smbtorture.h"
24 : #include "torture/winbind/proto.h"
25 : #include "auth/auth.h"
26 : #include "auth/auth_sam_reply.h"
27 : #include "auth/gensec/gensec.h"
28 : #include "system/kerberos.h"
29 : #include "auth/kerberos/kerberos.h"
30 : #include "auth/credentials/credentials.h"
31 : #include "param/param.h"
32 : #include "lib/cmdline/cmdline.h"
33 : #include "auth/kerberos/pac_utils.h"
34 : #include "wbclient.h"
35 :
36 : struct pac_data {
37 : DATA_BLOB pac_blob;
38 : };
39 :
40 : /* A helper function which avoids touching the local databases to
41 : * generate the session info, as we just want to verify the PAC
42 : * details, not the full local token */
43 12 : static NTSTATUS test_generate_session_info_pac(struct auth4_context *auth_ctx,
44 : TALLOC_CTX *mem_ctx,
45 : struct smb_krb5_context *smb_krb5_context,
46 : DATA_BLOB *pac_blob,
47 : const char *principal_name,
48 : const struct tsocket_address *remote_address,
49 : uint32_t session_info_flags,
50 : struct auth_session_info **session_info)
51 : {
52 0 : NTSTATUS nt_status;
53 0 : struct auth_user_info_dc *user_info_dc;
54 0 : TALLOC_CTX *tmp_ctx;
55 0 : struct pac_data *pac_data;
56 :
57 12 : if (pac_blob == NULL) {
58 0 : DBG_ERR("pac_blob missing\n");
59 0 : return NT_STATUS_NO_IMPERSONATION_TOKEN;
60 : }
61 :
62 12 : tmp_ctx = talloc_named(mem_ctx, 0, "gensec_gssapi_session_info context");
63 12 : NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
64 :
65 12 : auth_ctx->private_data = pac_data = talloc_zero(auth_ctx, struct pac_data);
66 :
67 12 : pac_data->pac_blob = *pac_blob;
68 :
69 12 : talloc_steal(pac_data, pac_data->pac_blob.data);
70 12 : nt_status = kerberos_pac_blob_to_user_info_dc(tmp_ctx,
71 : *pac_blob,
72 : smb_krb5_context->krb5_context,
73 : &user_info_dc,
74 : NULL, NULL);
75 12 : if (!NT_STATUS_IS_OK(nt_status)) {
76 0 : talloc_free(tmp_ctx);
77 0 : return nt_status;
78 : }
79 :
80 12 : if (!(user_info_dc->info->user_flags & NETLOGON_GUEST)) {
81 12 : session_info_flags |= AUTH_SESSION_INFO_AUTHENTICATED;
82 : }
83 :
84 12 : session_info_flags |= AUTH_SESSION_INFO_SIMPLE_PRIVILEGES;
85 12 : nt_status = auth_generate_session_info(mem_ctx,
86 : NULL,
87 : NULL,
88 : user_info_dc, session_info_flags,
89 : session_info);
90 12 : if (!NT_STATUS_IS_OK(nt_status)) {
91 0 : talloc_free(tmp_ctx);
92 0 : return nt_status;
93 : }
94 :
95 12 : talloc_free(tmp_ctx);
96 12 : return nt_status;
97 : }
98 :
99 12 : static bool torture_decode_compare_pac(struct torture_context *tctx,
100 : DATA_BLOB pac)
101 : {
102 0 : struct wbcAuthUserParams params;
103 0 : struct wbcAuthUserInfo *info;
104 0 : struct wbcAuthErrorInfo *error;
105 0 : struct PAC_LOGON_INFO *logon_info;
106 0 : struct netr_SamInfo3 *info3;
107 0 : struct netr_SamBaseInfo *base;
108 12 : struct PAC_DOMAIN_GROUP_MEMBERSHIP *resource_groups = NULL;
109 0 : wbcErr wbc_err;
110 0 : NTSTATUS status;
111 0 : int sid_idx, i;
112 0 : char sid_str[50];
113 :
114 : /* Let winbind decode the PAC */
115 12 : memset(¶ms, 0, sizeof(params));
116 12 : params.level = WBC_AUTH_USER_LEVEL_PAC;
117 12 : params.password.pac.data = pac.data;
118 12 : params.password.pac.length = pac.length;
119 :
120 12 : wbc_err = wbcAuthenticateUserEx(¶ms, &info, &error);
121 12 : torture_assert(tctx, WBC_ERROR_IS_OK(wbc_err), wbcErrorString(wbc_err));
122 :
123 : /* Decode the PAC internally */
124 12 : status = kerberos_pac_logon_info(tctx, pac, NULL, NULL, NULL, NULL, 0,
125 : &logon_info);
126 12 : torture_assert(tctx, NT_STATUS_IS_OK(status), "pac_logon_info");
127 12 : info3 = &logon_info->info3;
128 12 : base = &info3->base;
129 12 : resource_groups = &logon_info->resource_groups;
130 :
131 : /* Compare the decoded data from winbind and from internal call */
132 12 : torture_assert(tctx, info->user_flags == base->user_flags, "user_flags");
133 12 : torture_assert_str_equal(tctx, info->account_name, base->account_name.string, "account_name");
134 12 : torture_assert_str_equal(tctx, info->full_name, base->full_name.string, "full_name");
135 12 : torture_assert_str_equal(tctx, info->domain_name, base->logon_domain.string, "domain_name");
136 12 : torture_assert(tctx, info->acct_flags == base->acct_flags, "acct_flags");
137 12 : torture_assert(tctx, info->logon_count == base->logon_count, "logon_count");
138 12 : torture_assert(tctx, info->bad_password_count == base->bad_password_count, "bad_password_count");
139 12 : torture_assert(tctx, info->logon_time == nt_time_to_unix(base->logon_time), "logon_time");
140 12 : torture_assert(tctx, info->logoff_time == nt_time_to_unix(base->logoff_time), "logoff_time");
141 12 : torture_assert(tctx, info->kickoff_time == nt_time_to_unix(base->kickoff_time), "kickoff_time");
142 12 : torture_assert(tctx, info->pass_last_set_time == nt_time_to_unix(base->last_password_change), "last_password_change");
143 12 : torture_assert(tctx, info->pass_can_change_time == nt_time_to_unix(base->allow_password_change), "allow_password_change");
144 12 : torture_assert(tctx, info->pass_must_change_time == nt_time_to_unix(base->force_password_change), "force_password_change");
145 12 : torture_assert(tctx, info->num_sids == 2 + base->groups.count + info3->sidcount + resource_groups->groups.count, "num_sids");
146 :
147 12 : sid_idx = 0;
148 12 : wbcSidToStringBuf(&info->sids[sid_idx].sid, sid_str, sizeof(sid_str));
149 12 : torture_assert(tctx,
150 : dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
151 : dom_sid_add_rid(tctx, base->domain_sid, base->rid)),
152 : sid_str);
153 :
154 12 : sid_idx++;
155 12 : wbcSidToStringBuf(&info->sids[sid_idx].sid, sid_str, sizeof(sid_str));
156 12 : torture_assert(tctx,
157 : dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
158 : dom_sid_add_rid(tctx, base->domain_sid, base->primary_gid)),
159 : sid_str);
160 :
161 24 : for(i = 0; i < base->groups.count; i++ ) {
162 12 : sid_idx++;
163 12 : wbcSidToStringBuf(&info->sids[sid_idx].sid,
164 : sid_str, sizeof(sid_str));
165 12 : torture_assert_sid_equal(tctx,
166 : dom_sid_parse_talloc(tctx, sid_str),
167 : dom_sid_add_rid(tctx, base->domain_sid,
168 : base->groups.rids[i].rid),
169 : "base SID mismatch");
170 : }
171 :
172 42 : for(i = 0; i < info3->sidcount; i++) {
173 30 : sid_idx++;
174 30 : wbcSidToStringBuf(&info->sids[sid_idx].sid,
175 : sid_str, sizeof(sid_str));
176 30 : torture_assert_sid_equal(tctx,
177 : dom_sid_parse_talloc(tctx, sid_str),
178 : info3->sids[i].sid,
179 : "extra SID mismatch");
180 : }
181 :
182 18 : for (i = 0; i < resource_groups->groups.count; i++) {
183 6 : sid_idx++;
184 6 : wbcSidToStringBuf(&info->sids[sid_idx].sid,
185 : sid_str, sizeof(sid_str));
186 6 : torture_assert_sid_equal(tctx,
187 : dom_sid_parse_talloc(tctx, sid_str),
188 : dom_sid_add_rid(tctx, resource_groups->domain_sid,
189 : resource_groups->groups.rids[i].rid),
190 : "resource SID mismatch");
191 : }
192 :
193 12 : sid_idx++;
194 12 : torture_assert_int_equal(tctx, sid_idx, info->num_sids, "some SIDs still unaccounted for");
195 :
196 12 : return true;
197 : }
198 :
199 18 : static bool torture_winbind_pac(struct torture_context *tctx,
200 : const char *sasl_mech,
201 : const char *mech)
202 : {
203 0 : NTSTATUS status;
204 :
205 0 : struct gensec_security *gensec_client_context;
206 0 : struct gensec_security *gensec_server_context;
207 0 : struct cli_credentials *machine_credentials;
208 :
209 0 : DATA_BLOB client_to_server, server_to_client;
210 :
211 0 : struct auth4_context *auth_context;
212 0 : struct auth_session_info *session_info;
213 0 : struct pac_data *pac_data;
214 :
215 18 : TALLOC_CTX *tmp_ctx = talloc_new(tctx);
216 18 : torture_assert(tctx, tmp_ctx != NULL, "talloc_new() failed");
217 :
218 18 : machine_credentials = cli_credentials_init_server(tmp_ctx,
219 : tctx->lp_ctx);
220 18 : torture_assert(tctx, machine_credentials != NULL, "cli_credentials_init() failed");
221 :
222 18 : auth_context = talloc_zero(tmp_ctx, struct auth4_context);
223 18 : torture_assert(tctx, auth_context != NULL, "talloc_new() failed");
224 :
225 18 : auth_context->generate_session_info_pac = test_generate_session_info_pac;
226 :
227 18 : status = gensec_client_start(tctx, &gensec_client_context,
228 : lpcfg_gensec_settings(tctx, tctx->lp_ctx));
229 18 : torture_assert_ntstatus_ok(tctx, status, "gensec_client_start (client) failed");
230 :
231 18 : status = gensec_set_target_hostname(gensec_client_context, cli_credentials_get_workstation(machine_credentials));
232 18 : torture_assert_ntstatus_ok(tctx, status, "gensec_set_target_hostname (client) failed");
233 :
234 18 : status = gensec_set_credentials(gensec_client_context,
235 : samba_cmdline_get_creds());
236 18 : torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (client) failed");
237 :
238 18 : if (sasl_mech) {
239 12 : status = gensec_start_mech_by_sasl_name(gensec_client_context, sasl_mech);
240 12 : torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (client) failed");
241 : } else {
242 6 : status = gensec_start_mech_by_name(gensec_client_context, mech);
243 6 : torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_name (client) failed");
244 : }
245 :
246 :
247 14 : status = gensec_server_start(tctx,
248 : lpcfg_gensec_settings(tctx, tctx->lp_ctx),
249 : auth_context, &gensec_server_context);
250 14 : torture_assert_ntstatus_ok(tctx, status, "gensec_server_start (server) failed");
251 :
252 14 : status = gensec_set_credentials(gensec_server_context, machine_credentials);
253 14 : torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (server) failed");
254 :
255 14 : if (sasl_mech) {
256 10 : status = gensec_start_mech_by_sasl_name(gensec_server_context, sasl_mech);
257 10 : torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (server) failed");
258 : } else {
259 4 : status = gensec_start_mech_by_name(gensec_server_context, mech);
260 4 : torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_name (server) failed");
261 : }
262 :
263 14 : server_to_client = data_blob(NULL, 0);
264 :
265 0 : do {
266 : /* Do a client-server update dance */
267 22 : status = gensec_update(gensec_client_context, tmp_ctx, server_to_client, &client_to_server);
268 22 : if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
269 4 : torture_assert_ntstatus_ok(tctx, status, "gensec_update (client) failed");
270 : }
271 :
272 22 : status = gensec_update(gensec_server_context, tmp_ctx, client_to_server, &server_to_client);
273 22 : if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
274 14 : torture_assert_ntstatus_ok(tctx, status, "gensec_update (server) failed");
275 : }
276 :
277 20 : if (NT_STATUS_IS_OK(status)) {
278 12 : break;
279 : }
280 : } while (1);
281 :
282 : /* Extract the PAC using Samba's code */
283 :
284 12 : status = gensec_session_info(gensec_server_context, gensec_server_context, &session_info);
285 12 : torture_assert_ntstatus_ok(tctx, status, "gensec_session_info failed");
286 :
287 12 : pac_data = talloc_get_type(auth_context->private_data, struct pac_data);
288 :
289 12 : torture_assert(tctx, pac_data != NULL, "gensec_update failed to fill in pac_data in auth_context");
290 12 : torture_assert(tctx, pac_data->pac_blob.data != NULL, "pac_blob not present");
291 12 : torture_decode_compare_pac(tctx, pac_data->pac_blob);
292 :
293 12 : return true;
294 : }
295 :
296 6 : static bool torture_winbind_pac_gssapi(struct torture_context *tctx)
297 : {
298 6 : return torture_winbind_pac(tctx, "GSSAPI", NULL);
299 : }
300 :
301 6 : static bool torture_winbind_pac_gss_spnego(struct torture_context *tctx)
302 : {
303 6 : return torture_winbind_pac(tctx, "GSS-SPNEGO", NULL);
304 : }
305 :
306 6 : static bool torture_winbind_pac_krb5(struct torture_context *tctx)
307 : {
308 6 : return torture_winbind_pac(tctx, NULL, "krb5");
309 : }
310 :
311 2354 : NTSTATUS torture_winbind_init(TALLOC_CTX *ctx)
312 : {
313 2354 : struct torture_suite *suite = torture_suite_create(ctx, "winbind");
314 125 : struct torture_suite *pac_suite;
315 2354 : torture_suite_add_suite(suite, torture_winbind_struct_init(suite));
316 2354 : torture_suite_add_suite(suite, torture_wbclient(suite));
317 :
318 2354 : pac_suite = torture_suite_create(ctx, "pac");
319 2354 : torture_suite_add_simple_test(pac_suite,
320 : "GSSAPI", torture_winbind_pac_gssapi);
321 2354 : torture_suite_add_simple_test(pac_suite,
322 : "GSS-SPNEGO", torture_winbind_pac_gss_spnego);
323 2354 : torture_suite_add_simple_test(pac_suite,
324 : "krb5", torture_winbind_pac_krb5);
325 :
326 2354 : pac_suite->description = talloc_strdup(suite, "Winbind Kerberos PAC tests");
327 :
328 2354 : torture_suite_add_suite(suite, pac_suite);
329 :
330 2354 : suite->description = talloc_strdup(suite, "WINBIND tests");
331 :
332 2354 : torture_register_suite(ctx, suite);
333 :
334 2354 : return NT_STATUS_OK;
335 : }
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