source3/winbindd/winbindd_misc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon - miscellaneous other functions
   5
   6    Copyright (C) Tim Potter      2000
   7    Copyright (C) Andrew Bartlett 2002
   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 "winbindd.h"
  25 #include "libcli/security/dom_sid.h"
  26
  27 #undef DBGC_CLASS
  28 #define DBGC_CLASS DBGC_WINBIND
  29
  30 /* Constants and helper functions for determining domain trust types */
  31
  32 enum trust_type {
  33         EXTERNAL = 0,
  34         FOREST,
  35         IN_FOREST,
  36         NONE,
  37 };
  38
  39 const char *trust_type_strings[] = {"External",
  40                                     "Forest",
  41                                     "In Forest",
  42                                     "None"};
  43
  44 static enum trust_type get_trust_type(struct winbindd_tdc_domain *domain)
  45 {
  46         if (domain->trust_attribs == NETR_TRUST_ATTRIBUTE_QUARANTINED_DOMAIN)
  47                 return EXTERNAL;
  48         else if (domain->trust_attribs == NETR_TRUST_ATTRIBUTE_FOREST_TRANSITIVE)
  49                 return FOREST;
  50         else if (((domain->trust_flags & NETR_TRUST_FLAG_IN_FOREST) == NETR_TRUST_FLAG_IN_FOREST) &&
  51             ((domain->trust_flags & NETR_TRUST_FLAG_PRIMARY) == 0x0))
  52                 return IN_FOREST;
  53         return NONE;
  54 }
  55
  56 static const char *get_trust_type_string(struct winbindd_tdc_domain *domain)
  57 {
  58         return trust_type_strings[get_trust_type(domain)];
  59 }
  60
  61 static bool trust_is_inbound(struct winbindd_tdc_domain *domain)
  62 {
  63         return (domain->trust_flags == 0x0) ||
  64             ((domain->trust_flags & NETR_TRUST_FLAG_IN_FOREST) ==
  65             NETR_TRUST_FLAG_IN_FOREST) ||
  66             ((domain->trust_flags & NETR_TRUST_FLAG_INBOUND) ==
  67             NETR_TRUST_FLAG_INBOUND);
  68 }
  69
  70 static bool trust_is_outbound(struct winbindd_tdc_domain *domain)
  71 {
  72         return (domain->trust_flags == 0x0) ||
  73             ((domain->trust_flags & NETR_TRUST_FLAG_IN_FOREST) ==
  74             NETR_TRUST_FLAG_IN_FOREST) ||
  75             ((domain->trust_flags & NETR_TRUST_FLAG_OUTBOUND) ==
  76             NETR_TRUST_FLAG_OUTBOUND);
  77 }
  78
  79 static bool trust_is_transitive(struct winbindd_tdc_domain *domain)
  80 {
  81         if ((domain->trust_attribs == NETR_TRUST_ATTRIBUTE_NON_TRANSITIVE) ||
  82             (domain->trust_attribs == NETR_TRUST_ATTRIBUTE_QUARANTINED_DOMAIN) ||
  83             (domain->trust_attribs == NETR_TRUST_ATTRIBUTE_TREAT_AS_EXTERNAL))
  84                 return False;
  85         return True;
  86 }
  87
  88 void winbindd_list_trusted_domains(struct winbindd_cli_state *state)
  89 {
  90         struct winbindd_tdc_domain *dom_list = NULL;
  91         struct winbindd_tdc_domain *d = NULL;
  92         size_t num_domains = 0;
  93         int extra_data_len = 0;
  94         char *extra_data = NULL;
  95         int i = 0;
  96
  97         DEBUG(3, ("[%5lu]: list trusted domains\n",
  98                   (unsigned long)state->pid));
  99
 100         if( !wcache_tdc_fetch_list( &dom_list, &num_domains )) {
 101                 request_error(state);
 102                 goto done;
 103         }
 104
 105         extra_data = talloc_strdup(state->mem_ctx, "");
 106         if (extra_data == NULL) {
 107                 request_error(state);
 108                 goto done;
 109         }
 110
 111         for ( i = 0; i < num_domains; i++ ) {
 112                 struct winbindd_domain *domain;
 113                 bool is_online = true;
 114
 115                 d = &dom_list[i];
 116                 domain = find_domain_from_name_noinit(d->domain_name);
 117                 if (domain) {
 118                         is_online = domain->online;
 119                 }
 120                 extra_data = talloc_asprintf_append_buffer(
 121                         extra_data,
 122                         "%s\\%s\\%s\\%s\\%s\\%s\\%s\\%s\n",
 123                         d->domain_name,
 124                         d->dns_name ? d->dns_name : d->domain_name,
 125                         sid_string_talloc(state->mem_ctx, &d->sid),
 126                         get_trust_type_string(d),
 127                         trust_is_transitive(d) ? "Yes" : "No",
 128                         trust_is_inbound(d) ? "Yes" : "No",
 129                         trust_is_outbound(d) ? "Yes" : "No",
 130                         is_online ? "Online" : "Offline" );
 131         }
 132
 133         state->response->data.num_entries = num_domains;
 134
 135         extra_data_len = strlen(extra_data);
 136         if (extra_data_len > 0) {
 137
 138                 /* Strip the last \n */
 139                 extra_data[extra_data_len-1] = '\0';
 140
 141                 state->response->extra_data.data = extra_data;
 142                 state->response->length += extra_data_len;
 143         }
 144
 145         request_ok(state);
 146 done:
 147         TALLOC_FREE( dom_list );
 148 }
 149
 150 enum winbindd_result winbindd_dual_list_trusted_domains(struct winbindd_domain *domain,
 151                                                         struct winbindd_cli_state *state)
 152 {
 153         int i;
 154         int extra_data_len = 0;
 155         char *extra_data;
 156         NTSTATUS result;
 157         bool have_own_domain = False;
 158         struct netr_DomainTrustList trusts;
 159
 160         DEBUG(3, ("[%5lu]: list trusted domains\n",
 161                   (unsigned long)state->pid));
 162
 163         result = domain->methods->trusted_domains(domain, state->mem_ctx,
 164                                                   &trusts);
 165
 166         if (!NT_STATUS_IS_OK(result)) {
 167                 DEBUG(3, ("winbindd_dual_list_trusted_domains: trusted_domains returned %s\n",
 168                         nt_errstr(result) ));
 169                 return WINBINDD_ERROR;
 170         }
 171
 172         extra_data = talloc_strdup(state->mem_ctx, "");
 173
 174         for (i=0; i<trusts.count; i++) {
 175
 176                 if (trusts.array[i].sid == NULL) {
 177                         continue;
 178                 }
 179                 if (dom_sid_equal(trusts.array[i].sid, &global_sid_NULL)) {
 180                         continue;
 181                 }
 182
 183                 extra_data = talloc_asprintf_append_buffer(
 184                         extra_data, "%s\\%s\\%s\n",
 185                         trusts.array[i].netbios_name,
 186                         trusts.array[i].dns_name,
 187                         sid_string_talloc(state->mem_ctx,
 188                                           trusts.array[i].sid));
 189         }
 190
 191         /* add our primary domain */
 192
 193         for (i=0; i<trusts.count; i++) {
 194                 if (strequal(trusts.array[i].netbios_name, domain->name)) {
 195                         have_own_domain = True;
 196                         break;
 197                 }
 198         }
 199
 200         if (state->request->data.list_all_domains && !have_own_domain) {
 201                 extra_data = talloc_asprintf_append_buffer(
 202                         extra_data, "%s\\%s\\%s\n", domain->name,
 203                         domain->alt_name ? domain->alt_name : domain->name,
 204                         sid_string_talloc(state->mem_ctx, &domain->sid));
 205         }
 206
 207         extra_data_len = strlen(extra_data);
 208         if (extra_data_len > 0) {
 209
 210                 /* Strip the last \n */
 211                 extra_data[extra_data_len-1] = '\0';
 212
 213                 state->response->extra_data.data = extra_data;
 214                 state->response->length += extra_data_len+1;
 215         }
 216
 217         return WINBINDD_OK;
 218 }
 219
 220 struct domain_info_state {
 221         struct winbindd_domain *domain;
 222         struct winbindd_cli_state *cli;
 223         struct winbindd_request ping_request;
 224 };
 225
 226 static void domain_info_done(struct tevent_req *req);
 227
 228 void winbindd_domain_info(struct winbindd_cli_state *cli)
 229 {
 230         struct domain_info_state *state;
 231         struct winbindd_domain *domain;
 232         struct tevent_req *req;
 233
 234         DEBUG(3, ("[%5lu]: domain_info [%s]\n", (unsigned long)cli->pid,
 235                   cli->request->domain_name));
 236
 237         domain = find_domain_from_name_noinit(cli->request->domain_name);
 238
 239         if (domain == NULL) {
 240                 DEBUG(3, ("Did not find domain [%s]\n",
 241                           cli->request->domain_name));
 242                 request_error(cli);
 243                 return;
 244         }
 245
 246         if (domain->initialized) {
 247                 fstrcpy(cli->response->data.domain_info.name,
 248                         domain->name);
 249                 fstrcpy(cli->response->data.domain_info.alt_name,
 250                         domain->alt_name);
 251                 sid_to_fstring(cli->response->data.domain_info.sid,
 252                                &domain->sid);
 253                 cli->response->data.domain_info.native_mode =
 254                         domain->native_mode;
 255                 cli->response->data.domain_info.active_directory =
 256                         domain->active_directory;
 257                 cli->response->data.domain_info.primary =
 258                         domain->primary;
 259                 request_ok(cli);
 260                 return;
 261         }
 262
 263         state = talloc_zero(cli->mem_ctx, struct domain_info_state);
 264         if (state == NULL) {
 265                 DEBUG(0, ("talloc failed\n"));
 266                 request_error(cli);
 267                 return;
 268         }
 269
 270         state->cli = cli;
 271         state->domain = domain;
 272         state->ping_request.cmd = WINBINDD_PING;
 273
 274         /*
 275          * Send a ping down. This implicitly initializes the domain.
 276          */
 277
 278         req = wb_domain_request_send(state, winbind_event_context(),
 279                                      domain, &state->ping_request);
 280         if (req == NULL) {
 281                 DEBUG(3, ("wb_domain_request_send failed\n"));
 282                 request_error(cli);
 283                 return;
 284         }
 285         tevent_req_set_callback(req, domain_info_done, state);
 286 }
 287
 288 static void domain_info_done(struct tevent_req *req)
 289 {
 290         struct domain_info_state *state = tevent_req_callback_data(
 291                 req, struct domain_info_state);
 292         struct winbindd_response *response;
 293         int ret, err;
 294
 295         ret = wb_domain_request_recv(req, req, &response, &err);
 296         TALLOC_FREE(req);
 297         if (ret == -1) {
 298                 DEBUG(10, ("wb_domain_request failed: %s\n", strerror(errno)));
 299                 request_error(state->cli);
 300                 return;
 301         }
 302         if (!state->domain->initialized) {
 303                 DEBUG(5, ("wb_domain_request did not initialize domain %s\n",
 304                           state->domain->name));
 305                 request_error(state->cli);
 306                 return;
 307         }
 308
 309         fstrcpy(state->cli->response->data.domain_info.name,
 310                 state->domain->name);
 311         fstrcpy(state->cli->response->data.domain_info.alt_name,
 312                 state->domain->alt_name);
 313         sid_to_fstring(state->cli->response->data.domain_info.sid,
 314                        &state->domain->sid);
 315
 316         state->cli->response->data.domain_info.native_mode =
 317                 state->domain->native_mode;
 318         state->cli->response->data.domain_info.active_directory =
 319                 state->domain->active_directory;
 320         state->cli->response->data.domain_info.primary =
 321                 state->domain->primary;
 322
 323         request_ok(state->cli);
 324 }
 325
 326 void winbindd_dc_info(struct winbindd_cli_state *cli)
 327 {
 328         struct winbindd_domain *domain;
 329         char *dc_name, *dc_ip;
 330
 331         cli->request->domain_name[sizeof(cli->request->domain_name)-1] = '\0';
 332
 333         DEBUG(3, ("[%5lu]: domain_info [%s]\n", (unsigned long)cli->pid,
 334                   cli->request->domain_name));
 335
 336         if (cli->request->domain_name[0] != '\0') {
 337                 domain = find_domain_from_name_noinit(
 338                         cli->request->domain_name);
 339                 DEBUG(10, ("Could not find domain %s\n",
 340                            cli->request->domain_name));
 341                 if (domain == NULL) {
 342                         request_error(cli);
 343                         return;
 344                 }
 345         } else {
 346                 domain = find_our_domain();
 347         }
 348
 349         if (!fetch_current_dc_from_gencache(
 350                     talloc_tos(), domain->name, &dc_name, &dc_ip)) {
 351                 DEBUG(10, ("fetch_current_dc_from_gencache(%s) failed\n",
 352                            domain->name));
 353                 request_error(cli);
 354                 return;
 355         }
 356
 357         cli->response->data.num_entries = 1;
 358         cli->response->extra_data.data = talloc_asprintf(
 359                 cli->mem_ctx, "%s\n%s\n", dc_name, dc_ip);
 360
 361         TALLOC_FREE(dc_name);
 362         TALLOC_FREE(dc_ip);
 363
 364         if (cli->response->extra_data.data == NULL) {
 365                 request_error(cli);
 366                 return;
 367         }
 368
 369         /* must add one to length to copy the 0 for string termination */
 370         cli->response->length +=
 371                 strlen((char *)cli->response->extra_data.data) + 1;
 372
 373         request_ok(cli);
 374 }
 375
 376 /* List various tidbits of information */
 377
 378 void winbindd_info(struct winbindd_cli_state *state)
 379 {
 380
 381         DEBUG(3, ("[%5lu]: request misc info\n", (unsigned long)state->pid));
 382
 383         state->response->data.info.winbind_separator = *lp_winbind_separator();
 384         fstrcpy(state->response->data.info.samba_version, samba_version_string());
 385         request_ok(state);
 386 }
 387
 388 /* Tell the client the current interface version */
 389
 390 void winbindd_interface_version(struct winbindd_cli_state *state)
 391 {
 392         DEBUG(3, ("[%5lu]: request interface version\n",
 393                   (unsigned long)state->pid));
 394
 395         state->response->data.interface_version = WINBIND_INTERFACE_VERSION;
 396         request_ok(state);
 397 }
 398
 399 /* What domain are we a member of? */
 400
 401 void winbindd_domain_name(struct winbindd_cli_state *state)
 402 {
 403         DEBUG(3, ("[%5lu]: request domain name\n", (unsigned long)state->pid));
 404
 405         fstrcpy(state->response->data.domain_name, lp_workgroup());
 406         request_ok(state);
 407 }
 408
 409 /* What's my name again? */
 410
 411 void winbindd_netbios_name(struct winbindd_cli_state *state)
 412 {
 413         DEBUG(3, ("[%5lu]: request netbios name\n",
 414                   (unsigned long)state->pid));
 415
 416         fstrcpy(state->response->data.netbios_name, global_myname());
 417         request_ok(state);
 418 }
 419
 420 /* Where can I find the privileged pipe? */
 421
 422 void winbindd_priv_pipe_dir(struct winbindd_cli_state *state)
 423 {
 424         char *priv_dir;
 425         DEBUG(3, ("[%5lu]: request location of privileged pipe\n",
 426                   (unsigned long)state->pid));
 427
 428         priv_dir = get_winbind_priv_pipe_dir();
 429         state->response->extra_data.data = talloc_move(state->mem_ctx,
 430                                                       &priv_dir);
 431
 432         /* must add one to length to copy the 0 for string termination */
 433         state->response->length +=
 434                 strlen((char *)state->response->extra_data.data) + 1;
 435
 436         request_ok(state);
 437 }
 438