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 6 : 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 : NTSTATUS nt_status;
53 : struct auth_user_info_dc *user_info_dc;
54 : TALLOC_CTX *tmp_ctx;
55 : struct pac_data *pac_data;
56 :
57 6 : if (pac_blob == NULL) {
58 0 : DBG_ERR("pac_blob missing\n");
59 0 : return NT_STATUS_NO_IMPERSONATION_TOKEN;
60 : }
61 :
62 6 : tmp_ctx = talloc_named(mem_ctx, 0, "gensec_gssapi_session_info context");
63 6 : NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
64 :
65 6 : auth_ctx->private_data = pac_data = talloc_zero(auth_ctx, struct pac_data);
66 :
67 6 : pac_data->pac_blob = *pac_blob;
68 :
69 6 : talloc_steal(pac_data, pac_data->pac_blob.data);
70 6 : 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 6 : if (!NT_STATUS_IS_OK(nt_status)) {
76 0 : talloc_free(tmp_ctx);
77 0 : return nt_status;
78 : }
79 :
80 6 : if (user_info_dc->info->authenticated) {
81 6 : session_info_flags |= AUTH_SESSION_INFO_AUTHENTICATED;
82 : }
83 :
84 6 : session_info_flags |= AUTH_SESSION_INFO_SIMPLE_PRIVILEGES;
85 6 : nt_status = auth_generate_session_info(mem_ctx,
86 : NULL,
87 : NULL,
88 : user_info_dc, session_info_flags,
89 : session_info);
90 6 : if (!NT_STATUS_IS_OK(nt_status)) {
91 0 : talloc_free(tmp_ctx);
92 0 : return nt_status;
93 : }
94 :
95 6 : talloc_free(tmp_ctx);
96 6 : return nt_status;
97 : }
98 :
99 6 : static bool torture_decode_compare_pac(struct torture_context *tctx,
100 : DATA_BLOB pac)
101 : {
102 : struct wbcAuthUserParams params;
103 : struct wbcAuthUserInfo *info;
104 : struct wbcAuthErrorInfo *error;
105 : struct PAC_LOGON_INFO *logon_info;
106 : struct netr_SamInfo3 *info3;
107 : struct netr_SamBaseInfo *base;
108 : wbcErr wbc_err;
109 : NTSTATUS status;
110 : int sid_idx, i;
111 : char sid_str[50];
112 :
113 : /* Let winbind decode the PAC */
114 6 : memset(¶ms, 0, sizeof(params));
115 6 : params.level = WBC_AUTH_USER_LEVEL_PAC;
116 6 : params.password.pac.data = pac.data;
117 6 : params.password.pac.length = pac.length;
118 :
119 6 : wbc_err = wbcAuthenticateUserEx(¶ms, &info, &error);
120 6 : torture_assert(tctx, WBC_ERROR_IS_OK(wbc_err), wbcErrorString(wbc_err));
121 :
122 : /* Decode the PAC internally */
123 6 : status = kerberos_pac_logon_info(tctx, pac, NULL, NULL, NULL, NULL, 0,
124 : &logon_info);
125 6 : torture_assert(tctx, NT_STATUS_IS_OK(status), "pac_logon_info");
126 6 : info3 = &logon_info->info3;
127 6 : base = &info3->base;
128 :
129 : /* Compare the decoded data from winbind and from internal call */
130 6 : torture_assert(tctx, info->user_flags == base->user_flags, "user_flags");
131 6 : torture_assert_str_equal(tctx, info->account_name, base->account_name.string, "account_name");
132 6 : torture_assert_str_equal(tctx, info->full_name, base->full_name.string, "full_name");
133 6 : torture_assert_str_equal(tctx, info->domain_name, base->logon_domain.string, "domain_name");
134 6 : torture_assert(tctx, info->acct_flags == base->acct_flags, "acct_flags");
135 6 : torture_assert(tctx, info->logon_count == base->logon_count, "logon_count");
136 6 : torture_assert(tctx, info->bad_password_count == base->bad_password_count, "bad_password_count");
137 6 : torture_assert(tctx, info->logon_time == nt_time_to_unix(base->logon_time), "logon_time");
138 6 : torture_assert(tctx, info->logoff_time == nt_time_to_unix(base->logoff_time), "logoff_time");
139 6 : torture_assert(tctx, info->kickoff_time == nt_time_to_unix(base->kickoff_time), "kickoff_time");
140 6 : torture_assert(tctx, info->pass_last_set_time == nt_time_to_unix(base->last_password_change), "last_password_change");
141 6 : torture_assert(tctx, info->pass_can_change_time == nt_time_to_unix(base->allow_password_change), "allow_password_change");
142 6 : torture_assert(tctx, info->pass_must_change_time == nt_time_to_unix(base->force_password_change), "force_password_change");
143 6 : torture_assert(tctx, info->num_sids == 2 + base->groups.count + info3->sidcount, "num_sids");
144 :
145 6 : sid_idx = 0;
146 6 : wbcSidToStringBuf(&info->sids[sid_idx].sid, sid_str, sizeof(sid_str));
147 6 : torture_assert(tctx,
148 : dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
149 : dom_sid_add_rid(tctx, base->domain_sid, base->rid)),
150 : sid_str);
151 :
152 6 : sid_idx++;
153 6 : wbcSidToStringBuf(&info->sids[sid_idx].sid, sid_str, sizeof(sid_str));
154 6 : torture_assert(tctx,
155 : dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
156 : dom_sid_add_rid(tctx, base->domain_sid, base->primary_gid)),
157 : sid_str);
158 :
159 12 : for(i = 0; i < base->groups.count; i++ ) {
160 6 : sid_idx++;
161 6 : wbcSidToStringBuf(&info->sids[sid_idx].sid,
162 : sid_str, sizeof(sid_str));
163 6 : torture_assert(tctx,
164 : dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
165 : dom_sid_add_rid(tctx, base->domain_sid,
166 : base->groups.rids[i].rid)),
167 : sid_str);
168 : }
169 :
170 12 : for(i = 0; i < info3->sidcount; i++) {
171 6 : sid_idx++;
172 6 : wbcSidToStringBuf(&info->sids[sid_idx].sid,
173 : sid_str, sizeof(sid_str));
174 6 : torture_assert(tctx,
175 : dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
176 : info3->sids[i].sid),
177 : sid_str);
178 : }
179 :
180 6 : return true;
181 : }
182 :
183 6 : static bool torture_winbind_pac(struct torture_context *tctx,
184 : const char *sasl_mech,
185 : const char *mech)
186 : {
187 : NTSTATUS status;
188 :
189 : struct gensec_security *gensec_client_context;
190 : struct gensec_security *gensec_server_context;
191 : struct cli_credentials *machine_credentials;
192 :
193 : DATA_BLOB client_to_server, server_to_client;
194 :
195 : struct auth4_context *auth_context;
196 : struct auth_session_info *session_info;
197 : struct pac_data *pac_data;
198 :
199 6 : TALLOC_CTX *tmp_ctx = talloc_new(tctx);
200 6 : torture_assert(tctx, tmp_ctx != NULL, "talloc_new() failed");
201 :
202 6 : machine_credentials = cli_credentials_init_server(tmp_ctx,
203 : tctx->lp_ctx);
204 6 : torture_assert(tctx, machine_credentials != NULL, "cli_credentials_init() failed");
205 :
206 6 : auth_context = talloc_zero(tmp_ctx, struct auth4_context);
207 6 : torture_assert(tctx, auth_context != NULL, "talloc_new() failed");
208 :
209 6 : auth_context->generate_session_info_pac = test_generate_session_info_pac;
210 :
211 6 : status = gensec_client_start(tctx, &gensec_client_context,
212 : lpcfg_gensec_settings(tctx, tctx->lp_ctx));
213 6 : torture_assert_ntstatus_ok(tctx, status, "gensec_client_start (client) failed");
214 :
215 6 : status = gensec_set_target_hostname(gensec_client_context, cli_credentials_get_workstation(machine_credentials));
216 6 : torture_assert_ntstatus_ok(tctx, status, "gensec_set_target_hostname (client) failed");
217 :
218 6 : status = gensec_set_credentials(gensec_client_context,
219 : samba_cmdline_get_creds());
220 6 : torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (client) failed");
221 :
222 6 : if (sasl_mech) {
223 4 : status = gensec_start_mech_by_sasl_name(gensec_client_context, sasl_mech);
224 4 : torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (client) failed");
225 : } else {
226 2 : status = gensec_start_mech_by_name(gensec_client_context, mech);
227 2 : torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_name (client) failed");
228 : }
229 :
230 :
231 6 : status = gensec_server_start(tctx,
232 : lpcfg_gensec_settings(tctx, tctx->lp_ctx),
233 : auth_context, &gensec_server_context);
234 6 : torture_assert_ntstatus_ok(tctx, status, "gensec_server_start (server) failed");
235 :
236 6 : status = gensec_set_credentials(gensec_server_context, machine_credentials);
237 6 : torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (server) failed");
238 :
239 6 : if (sasl_mech) {
240 4 : status = gensec_start_mech_by_sasl_name(gensec_server_context, sasl_mech);
241 4 : torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (server) failed");
242 : } else {
243 2 : status = gensec_start_mech_by_name(gensec_server_context, mech);
244 2 : torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_name (server) failed");
245 : }
246 :
247 6 : server_to_client = data_blob(NULL, 0);
248 :
249 : do {
250 : /* Do a client-server update dance */
251 12 : status = gensec_update(gensec_client_context, tmp_ctx, server_to_client, &client_to_server);
252 10 : if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
253 2 : torture_assert_ntstatus_ok(tctx, status, "gensec_update (client) failed");
254 : }
255 :
256 10 : status = gensec_update(gensec_server_context, tmp_ctx, client_to_server, &server_to_client);
257 10 : if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
258 6 : torture_assert_ntstatus_ok(tctx, status, "gensec_update (server) failed");
259 : }
260 :
261 10 : if (NT_STATUS_IS_OK(status)) {
262 6 : break;
263 : }
264 : } while (1);
265 :
266 : /* Extract the PAC using Samba's code */
267 :
268 6 : status = gensec_session_info(gensec_server_context, gensec_server_context, &session_info);
269 6 : torture_assert_ntstatus_ok(tctx, status, "gensec_session_info failed");
270 :
271 6 : pac_data = talloc_get_type(auth_context->private_data, struct pac_data);
272 :
273 6 : torture_assert(tctx, pac_data != NULL, "gensec_update failed to fill in pac_data in auth_context");
274 6 : torture_assert(tctx, pac_data->pac_blob.data != NULL, "pac_blob not present");
275 6 : torture_decode_compare_pac(tctx, pac_data->pac_blob);
276 :
277 6 : return true;
278 : }
279 :
280 2 : static bool torture_winbind_pac_gssapi(struct torture_context *tctx)
281 : {
282 2 : return torture_winbind_pac(tctx, "GSSAPI", NULL);
283 : }
284 :
285 2 : static bool torture_winbind_pac_gss_spnego(struct torture_context *tctx)
286 : {
287 2 : return torture_winbind_pac(tctx, "GSS-SPNEGO", NULL);
288 : }
289 :
290 2 : static bool torture_winbind_pac_krb5(struct torture_context *tctx)
291 : {
292 2 : return torture_winbind_pac(tctx, NULL, "krb5");
293 : }
294 :
295 964 : NTSTATUS torture_winbind_init(TALLOC_CTX *ctx)
296 : {
297 964 : struct torture_suite *suite = torture_suite_create(ctx, "winbind");
298 : struct torture_suite *pac_suite;
299 964 : torture_suite_add_suite(suite, torture_winbind_struct_init(suite));
300 964 : torture_suite_add_suite(suite, torture_wbclient(suite));
301 :
302 964 : pac_suite = torture_suite_create(ctx, "pac");
303 964 : torture_suite_add_simple_test(pac_suite,
304 : "GSSAPI", torture_winbind_pac_gssapi);
305 964 : torture_suite_add_simple_test(pac_suite,
306 : "GSS-SPNEGO", torture_winbind_pac_gss_spnego);
307 964 : torture_suite_add_simple_test(pac_suite,
308 : "krb5", torture_winbind_pac_krb5);
309 :
310 964 : pac_suite->description = talloc_strdup(suite, "Winbind Kerberos PAC tests");
311 :
312 964 : torture_suite_add_suite(suite, pac_suite);
313 :
314 964 : suite->description = talloc_strdup(suite, "WINBIND tests");
315 :
316 964 : torture_register_suite(ctx, suite);
317 :
318 964 : return NT_STATUS_OK;
319 : }
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