source/lib/ldb/tools/ldbsearch.c

   1 /*
   2    ldb database library
   3
   4    Copyright (C) Andrew Tridgell  2004
   5
   6      ** NOTE! The following LGPL license applies to the ldb
   7      ** library. This does NOT imply that all of Samba is released
   8      ** under the LGPL
   9
  10    This library is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU Lesser General Public
  12    License as published by the Free Software Foundation; either
  13    version 2 of the License, or (at your option) any later version.
  14
  15    This library is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    Lesser General Public License for more details.
  19
  20    You should have received a copy of the GNU Lesser General Public
  21    License along with this library; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23 */
  24
  25 /*
  26  *  Name: ldb
  27  *
  28  *  Component: ldbsearch
  29  *
  30  *  Description: utility for ldb search - modelled on ldapsearch
  31  *
  32  *  Author: Andrew Tridgell
  33  */
  34
  35 #include "includes.h"
  36 #include "ldb/include/includes.h"
  37 #include "ldb/tools/cmdline.h"
  38
  39 static void usage(void)
  40 {
  41         printf("Usage: ldbsearch <options> <expression> <attrs...>\n");
  42         printf("Options:\n");
  43         printf("  -H ldb_url       choose the database (or $LDB_URL)\n");
  44         printf("  -s base|sub|one  choose search scope\n");
  45         printf("  -b basedn        choose baseDN\n");
  46         printf("  -i               read search expressions from stdin\n");
  47         printf("  -S               sort returned attributes\n");
  48         printf("  -o options       pass options like modules to activate\n");
  49         printf("              e.g: -o modules:timestamps\n");
  50         exit(1);
  51 }
  52
  53 static int do_compare_msg(struct ldb_message **el1,
  54                           struct ldb_message **el2,
  55                           void *opaque)
  56 {
  57         struct ldb_context *ldb = talloc_get_type(opaque, struct ldb_context);
  58         return ldb_dn_compare(ldb, (*el1)->dn, (*el2)->dn);
  59 }
  60
  61 static struct ldb_control **parse_controls(void *mem_ctx, char **control_strings)
  62 {
  63         int i;
  64         struct ldb_control **ctrl;
  65
  66         if (control_strings == NULL || control_strings[0] == NULL)
  67                 return NULL;
  68
  69         for (i = 0; control_strings[i]; i++);
  70
  71         ctrl = talloc_array(mem_ctx, struct ldb_control *, i + 1);
  72
  73         for (i = 0; control_strings[i]; i++) {
  74                 if (strncmp(control_strings[i], "extended_dn:", 12) == 0) {
  75                         struct ldb_extended_dn_control *control;
  76                         const char *p;
  77                         int crit, type, ret;
  78
  79                         p = &(control_strings[i][12]);
  80                         ret = sscanf(p, "%d:%d", &crit, &type);
  81                         if ((ret != 2) || (crit < 0) || (crit > 1) || (type < 0) || (type > 1)) {
  82                                 fprintf(stderr, "invalid extended_dn control syntax\n");
  83                                 return NULL;
  84                         }
  85
  86                         ctrl[i] = talloc(ctrl, struct ldb_control);
  87                         ctrl[i]->oid = LDB_CONTROL_EXTENDED_DN_OID;
  88                         ctrl[i]->critical = crit;
  89                         control = talloc(ctrl[i], struct ldb_extended_dn_control);
  90                         control->type = type;
  91                         ctrl[i]->data = control;
  92
  93                         continue;
  94                 }
  95
  96                 if (strncmp(control_strings[i], "paged_results:", 14) == 0) {
  97                         struct ldb_paged_control *control;
  98                         const char *p;
  99                         int crit, size, ret;
 100
 101                         p = &(control_strings[i][14]);
 102                         ret = sscanf(p, "%d:%d", &crit, &size);
 103
 104                         if ((ret != 2) || (crit < 0) || (crit > 1) || (size < 0)) {
 105                                 fprintf(stderr, "invalid paged_results control syntax\n");
 106                                 return NULL;
 107                         }
 108
 109                         ctrl[i] = talloc(ctrl, struct ldb_control);
 110                         ctrl[i]->oid = LDB_CONTROL_PAGED_RESULTS_OID;
 111                         ctrl[i]->critical = crit;
 112                         control = talloc(ctrl[i], struct ldb_paged_control);
 113                         control->size = size;
 114                         control->cookie = NULL;
 115                         control->cookie_len = 0;
 116                         ctrl[i]->data = control;
 117
 118                         continue;
 119                 }
 120
 121                 if (strncmp(control_strings[i], "server_sort:", 12) == 0) {
 122                         struct ldb_server_sort_control **control;
 123                         const char *p;
 124                         char attr[256];
 125                         char rule[128];
 126                         int crit, rev, ret;
 127
 128                         attr[0] = '\0';
 129                         rule[0] = '\0';
 130                         p = &(control_strings[i][12]);
 131                         ret = sscanf(p, "%d:%d:%255[^:]:%127[^:]", &crit, &rev, attr, rule);
 132                         if ((ret < 3) || (crit < 0) || (crit > 1) || (rev < 0 ) || (rev > 1) ||attr[0] == '\0') {
 133                                 fprintf(stderr, "invalid server_sort control syntax\n");
 134                                 return NULL;
 135                         }
 136                         ctrl[i] = talloc(ctrl, struct ldb_control);
 137                         ctrl[i]->oid = LDB_CONTROL_SERVER_SORT_OID;
 138                         ctrl[i]->critical = crit;
 139                         control = talloc_array(ctrl[i], struct ldb_server_sort_control *, 2);
 140                         control[0] = talloc(control, struct ldb_server_sort_control);
 141                         control[0]->attributeName = talloc_strdup(control, attr);
 142                         if (rule[0])
 143                                 control[0]->orderingRule = talloc_strdup(control, rule);
 144                         else
 145                                 control[0]->orderingRule = NULL;
 146                         control[0]->reverse = rev;
 147                         control[1] = NULL;
 148                         ctrl[i]->data = control;
 149
 150                         continue;
 151                 }
 152
 153                 /* no controls matched, throw an error */
 154                 fprintf(stderr, "Invalid control name\n");
 155                 return NULL;
 156         }
 157
 158         ctrl[i] = NULL;
 159
 160         return ctrl;
 161 }
 162
 163 /* this function check controls reply and determines if more
 164  * processing is needed setting up the request controls correctly
 165  *
 166  * returns:
 167  *      -1 error
 168  *      0 all ok
 169  *      1 all ok, more processing required
 170  */
 171 static int handle_controls_reply(struct ldb_control **reply, struct ldb_control **request)
 172 {
 173         int i, j;
 174         int ret = 0;
 175
 176         if (reply == NULL || request == NULL) return -1;
 177
 178         for (i = 0; reply[i]; i++) {
 179                 if (strcmp(LDB_CONTROL_PAGED_RESULTS_OID, reply[i]->oid) == 0) {
 180                         struct ldb_paged_control *rep_control, *req_control;
 181
 182                         rep_control = talloc_get_type(reply[i]->data, struct ldb_paged_control);
 183                         if (rep_control->cookie_len == 0) /* we are done */
 184                                 break;
 185
 186                         /* more processing required */
 187                         /* let's fill in the request control with the new cookie */
 188
 189                         for (j = 0; request[j]; j++) {
 190                                 if (strcmp(LDB_CONTROL_PAGED_RESULTS_OID, request[j]->oid) == 0)
 191                                         break;
 192                         }
 193                         /* if there's a reply control we must find a request
 194                          * control matching it */
 195                         if (! request[j]) return -1;
 196
 197                         req_control = talloc_get_type(request[j]->data, struct ldb_paged_control);
 198
 199                         if (req_control->cookie)
 200                                 talloc_free(req_control->cookie);
 201                         req_control->cookie = talloc_memdup(req_control,
 202                                                             rep_control->cookie,
 203                                                             rep_control->cookie_len);
 204                         req_control->cookie_len = rep_control->cookie_len;
 205
 206                         ret = 1;
 207
 208                         continue;
 209                 }
 210
 211                 if (strcmp(LDB_CONTROL_SORT_RESP_OID, reply[i]->oid) == 0) {
 212                         struct ldb_sort_resp_control *rep_control;
 213
 214                         rep_control = talloc_get_type(reply[i]->data, struct ldb_sort_resp_control);
 215
 216                         /* check we have a matching control in the request */
 217                         for (j = 0; request[j]; j++) {
 218                                 if (strcmp(LDB_CONTROL_SERVER_SORT_OID, request[j]->oid) == 0)
 219                                         break;
 220                         }
 221                         if (! request[j]) {
 222                                 fprintf(stderr, "Warning Server Sort reply received but no request found\n");
 223                                 continue;
 224                         }
 225
 226                         /* check the result */
 227                         if (rep_control->result != 0) {
 228                                 fprintf(stderr, "Warning: Sorting not performed with error: %d\n", rep_control->result);
 229                         }
 230
 231                         continue;
 232                 }
 233
 234                 /* no controls matched, throw a warning */
 235                 fprintf(stderr, "Unknown reply control oid: %s\n", reply[i]->oid);
 236         }
 237
 238         return ret;
 239 }
 240
 241
 242 static int do_search(struct ldb_context *ldb,
 243                      const struct ldb_dn *basedn,
 244                      struct ldb_cmdline *options,
 245                      const char *expression,
 246                      const char * const *attrs)
 247 {
 248         int ret, i;
 249         int loop = 0;
 250         int total = 0;
 251         struct ldb_request req;
 252         struct ldb_result *result = NULL;
 253
 254         req.operation = LDB_REQ_SEARCH;
 255         req.op.search.base = basedn;
 256         req.op.search.scope = options->scope;
 257         req.op.search.tree = ldb_parse_tree(ldb, expression);
 258         req.op.search.attrs = attrs;
 259         req.op.search.res = NULL;
 260         req.controls = parse_controls(ldb, options->controls);
 261         if (options->controls != NULL && req.controls == NULL) return -1;
 262         req.creds = NULL;
 263
 264         do {
 265                 loop = 0;
 266
 267                 ret = ldb_request(ldb, &req);
 268                 if (ret != LDB_SUCCESS) {
 269                         printf("search failed - %s\n", ldb_errstring(ldb));
 270                         return -1;
 271                 }
 272
 273                 result = req.op.search.res;
 274                 printf("# returned %d records\n", result->count);
 275
 276                 if (options->sorted) {
 277                         ldb_qsort(result->msgs, ret, sizeof(struct ldb_message *),
 278                                   ldb, (ldb_qsort_cmp_fn_t)do_compare_msg);
 279                 }
 280
 281                 for (i = 0; i < result->count; i++, total++) {
 282                         struct ldb_ldif ldif;
 283                         printf("# record %d\n", total + 1);
 284
 285                         ldif.changetype = LDB_CHANGETYPE_NONE;
 286                         ldif.msg = result->msgs[i];
 287
 288                         if (options->sorted) {
 289                                 /*
 290                                  * Ensure attributes are always returned in the same
 291                                  * order.  For testing, this makes comparison of old
 292                                  * vs. new much easier.
 293                                  */
 294                                 ldb_msg_sort_elements(ldif.msg);
 295                         }
 296
 297                         ldb_ldif_write_file(ldb, stdout, &ldif);
 298                 }
 299
 300                 if (result->controls) {
 301                         if (handle_controls_reply(result->controls, req.controls) == 1)
 302                                 loop = 1;
 303                 }
 304
 305                 if (result) {
 306                         ret = talloc_free(result);
 307                         if (ret == -1) {
 308                                 fprintf(stderr, "talloc_free failed\n");
 309                                 exit(1);
 310                         }
 311                 }
 312
 313                 req.op.search.res = NULL;
 314
 315         } while(loop);
 316
 317         return 0;
 318 }
 319
 320  int main(int argc, const char **argv)
 321 {
 322         struct ldb_context *ldb;
 323         struct ldb_dn *basedn = NULL;
 324         const char * const * attrs = NULL;
 325         struct ldb_cmdline *options;
 326         int ret = -1;
 327         const char *expression = "(objectclass=*)";
 328
 329         ldb = ldb_init(NULL);
 330
 331         options = ldb_cmdline_process(ldb, argc, argv, usage);
 332
 333         /* the check for '=' is for compatibility with ldapsearch */
 334         if (!options->interactive &&
 335             options->argc > 0 &&
 336             strchr(options->argv[0], '=')) {
 337                 expression = options->argv[0];
 338                 options->argv++;
 339                 options->argc--;
 340         }
 341
 342         if (options->argc > 0) {
 343                 attrs = (const char * const *)(options->argv);
 344         }
 345
 346         if (options->basedn != NULL) {
 347                 basedn = ldb_dn_explode(ldb, options->basedn);
 348                 if (basedn == NULL) {
 349                         fprintf(stderr, "Invalid Base DN format\n");
 350                         exit(1);
 351                 }
 352         }
 353
 354         if (options->interactive) {
 355                 char line[1024];
 356                 while (fgets(line, sizeof(line), stdin)) {
 357                         if (do_search(ldb, basedn, options, line, attrs) == -1) {
 358                                 ret = -1;
 359                         }
 360                 }
 361         } else {
 362                 ret = do_search(ldb, basedn, options, expression, attrs);
 363         }
 364
 365         talloc_free(ldb);
 366         return ret;
 367 }