source/passdb/pdb_mysql.c

   1
   2 /*
   3  * MySQL password backend for samba
   4  * Copyright (C) Jelmer Vernooij 2002
   5  *
   6  * This program is free software; you can redistribute it and/or modify it under
   7  * the terms of the GNU General Public License as published by the Free
   8  * Software Foundation; either version 2 of the License, or (at your option)
   9  * any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program; if not, write to the Free Software Foundation, Inc., 675
  18  * Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include "includes.h"
  22 #include <mysql/mysql.h>
  23
  24 #define CONFIG_TABLE_DEFAULT                            "user"
  25 #define CONFIG_LOGON_TIME_DEFAULT                       "logon_time"
  26 #define CONFIG_LOGOFF_TIME_DEFAULT                      "logoff_time"
  27 #define CONFIG_KICKOFF_TIME_DEFAULT                     "kickoff_time"
  28 #define CONFIG_PASS_LAST_SET_TIME_DEFAULT       "pass_last_set_time"
  29 #define CONFIG_PASS_CAN_CHANGE_TIME_DEFAULT     "pass_can_change_time"
  30 #define CONFIG_PASS_MUST_CHANGE_TIME_DEFAULT "pass_must_change_time"
  31 #define CONFIG_USERNAME_DEFAULT                         "username"
  32 #define CONFIG_DOMAIN_DEFAULT                           "domain"
  33 #define CONFIG_NT_USERNAME_DEFAULT              "nt_username"
  34 #define CONFIG_FULLNAME_DEFAULT                         "nt_fullname"
  35 #define CONFIG_HOME_DIR_DEFAULT                         "home_dir"
  36 #define CONFIG_DIR_DRIVE_DEFAULT                        "dir_drive"
  37 #define CONFIG_LOGON_SCRIPT_DEFAULT                     "logon_script"
  38 #define CONFIG_PROFILE_PATH_DEFAULT                     "profile_path"
  39 #define CONFIG_ACCT_DESC_DEFAULT                        "acct_desc"
  40 #define CONFIG_WORKSTATIONS_DEFAULT                     "workstations"
  41 #define CONFIG_UNKNOWN_STR_DEFAULT                      "unknown_str"
  42 #define CONFIG_MUNGED_DIAL_DEFAULT                      "munged_dial"
  43 #define CONFIG_UID_DEFAULT                                      "uid"
  44 #define CONFIG_GID_DEFAULT                                      "gid"
  45 #define CONFIG_USER_SID_DEFAULT                         "user_sid"
  46 #define CONFIG_GROUP_SID_DEFAULT                        "group_sid"
  47 #define CONFIG_LM_PW_DEFAULT                            "lm_pw"
  48 #define CONFIG_NT_PW_DEFAULT                            "nt_pw"
  49 #define CONFIG_PLAIN_PW_DEFAULT                         "NULL"
  50 #define CONFIG_ACCT_CTRL_DEFAULT                        "acct_ctrl"
  51 #define CONFIG_UNKNOWN_3_DEFAULT                        "unknown_3"
  52 #define CONFIG_LOGON_DIVS_DEFAULT                       "logon_divs"
  53 #define CONFIG_HOURS_LEN_DEFAULT                        "hours_len"
  54 #define CONFIG_UNKNOWN_5_DEFAULT                        "unknown_5"
  55 #define CONFIG_UNKNOWN_6_DEFAULT                        "unknown_6"
  56 #define CONFIG_HOST_DEFAULT                                     "localhost"
  57 #define CONFIG_USER_DEFAULT                                     "samba"
  58 #define CONFIG_PASS_DEFAULT                                     ""
  59 #define CONFIG_PORT_DEFAULT                                     "3306"
  60 #define CONFIG_DB_DEFAULT                                       "samba"
  61
  62 static int mysqlsam_debug_level = DBGC_ALL;
  63
  64 #undef DBGC_CLASS
  65 #define DBGC_CLASS mysqlsam_debug_level
  66
  67 PDB_MODULE_VERSIONING_MAGIC
  68
  69 typedef struct pdb_mysql_data {
  70         MYSQL *handle;
  71         MYSQL_RES *pwent;
  72         char *location;
  73 } pdb_mysql_data;
  74
  75 /* Used to construct insert and update queries */
  76
  77 typedef struct pdb_mysql_query {
  78         char update;
  79         TALLOC_CTX *mem_ctx;
  80         char *part1;
  81         char *part2;
  82 } pdb_mysql_query;
  83 #define SET_DATA(data,methods) { \
  84         if(!methods){ \
  85                 DEBUG(0, ("invalid methods!\n")); \
  86                         return NT_STATUS_INVALID_PARAMETER; \
  87         } \
  88         data = (struct pdb_mysql_data *)methods->private_data; \
  89                 if(!data || !(data->handle)){ \
  90                         DEBUG(0, ("invalid handle!\n")); \
  91                                 return NT_STATUS_INVALID_HANDLE; \
  92                 } \
  93 }
  94
  95 static void pdb_mysql_int_field(struct pdb_methods *m,
  96                                         struct pdb_mysql_query *q, char *name, int value)
  97 {
  98         if (!name || strchr(name, '\''))
  99                 return;                 /* This field shouldn't be set by us */
 100
 101         if (q->update) {
 102                 q->part1 =
 103                         talloc_asprintf_append(q->mem_ctx, q->part1,
 104                                                                    "%s = %d,", name, value);
 105         } else {
 106                 q->part1 =
 107                         talloc_asprintf_append(q->mem_ctx, q->part1, "%s,", name);
 108                 q->part2 =
 109                         talloc_asprintf_append(q->mem_ctx, q->part2, "%d,", value);
 110         }
 111 }
 112
 113 static NTSTATUS pdb_mysql_string_field(struct pdb_methods *methods,
 114                                            struct pdb_mysql_query *q,
 115                                            char *name, const char *value)
 116 {
 117         char *esc_value;
 118         struct pdb_mysql_data *data;
 119         char *tmp_value;
 120
 121         SET_DATA(data, methods);
 122
 123         if (!name || !value || !strcmp(value, "") || strchr(name, '\''))
 124                 return NT_STATUS_INVALID_PARAMETER;   /* This field shouldn't be set by module */
 125
 126         esc_value = malloc(strlen(value) * 2 + 1);
 127
 128         tmp_value = smb_xstrdup(value);
 129         mysql_real_escape_string(data->handle, esc_value, tmp_value,
 130                                                          strlen(tmp_value));
 131         SAFE_FREE(tmp_value);
 132
 133         if (q->update) {
 134                 q->part1 =
 135                         talloc_asprintf_append(q->mem_ctx, q->part1,
 136                                                                    "%s = '%s',", name, esc_value);
 137         } else {
 138                 q->part1 =
 139                         talloc_asprintf_append(q->mem_ctx, q->part1, "%s,", name);
 140                 q->part2 =
 141                         talloc_asprintf_append(q->mem_ctx, q->part2, "'%s',",
 142                                                                    esc_value);
 143         }
 144
 145         SAFE_FREE(esc_value);
 146
 147         return NT_STATUS_OK;
 148 }
 149
 150 static char * config_value(pdb_mysql_data * data, char *name, char *default_value)
 151 {
 152         if (lp_parm_string(NULL, data->location, name))
 153                 return lp_parm_string(NULL, data->location, name);
 154
 155         return default_value;
 156 }
 157
 158 static char * config_value_write(pdb_mysql_data * data, char *name, char *default_value) {
 159         char *v = config_value(data, name, NULL);
 160         char *swrite;
 161
 162         if (!v)
 163                 return default_value;
 164
 165         swrite = strchr(v, ':');
 166
 167         /* Default to the same field as read field */
 168         if (!swrite)
 169                 return v;
 170
 171         swrite++;
 172
 173         /* If the field is 0 chars long, we shouldn't write to it */
 174         if (!strlen(swrite) || !strcmp(swrite, "NULL"))
 175                 return NULL;
 176
 177         /* Otherwise, use the additionally specified */
 178         return swrite;
 179 }
 180
 181 static const char * config_value_read(pdb_mysql_data * data, char *name, char *default_value)
 182 {
 183         char *v = config_value(data, name, NULL);
 184         char *swrite;
 185
 186         if (!v)
 187                 return default_value;
 188
 189         swrite = strchr(v, ':');
 190
 191         /* If no write is specified, there are no problems */
 192         if (!swrite) {
 193                 if (strlen(v) == 0)
 194                         return "NULL";
 195                 return v;
 196         }
 197
 198         /* Otherwise, we have to cut the ':write_part' */
 199         *swrite = '\0';
 200         if (strlen(v) == 0)
 201                 return "NULL";
 202
 203         return v;
 204 }
 205
 206 /* Wrapper for atol that returns 0 if 'a' points to NULL */
 207 static long xatol(char *a)
 208 {
 209         long ret = 0;
 210
 211         if (a != NULL)
 212                 ret = atol(a);
 213
 214         return ret;
 215 }
 216
 217 static NTSTATUS row_to_sam_account(MYSQL_RES * r, SAM_ACCOUNT * u)
 218 {
 219         MYSQL_ROW row;
 220         pstring temp;
 221         unsigned int num_fields;
 222         DOM_SID sid;
 223
 224         num_fields = mysql_num_fields(r);
 225         row = mysql_fetch_row(r);
 226         if (!row)
 227                 return NT_STATUS_INVALID_PARAMETER;
 228
 229         pdb_set_logon_time(u, xatol(row[0]), PDB_SET);
 230         pdb_set_logoff_time(u, xatol(row[1]), PDB_SET);
 231         pdb_set_kickoff_time(u, xatol(row[2]), PDB_SET);
 232         pdb_set_pass_last_set_time(u, xatol(row[3]), PDB_SET);
 233         pdb_set_pass_can_change_time(u, xatol(row[4]), PDB_SET);
 234         pdb_set_pass_must_change_time(u, xatol(row[5]), PDB_SET);
 235         pdb_set_username(u, row[6], PDB_SET);
 236         pdb_set_domain(u, row[7], PDB_SET);
 237         pdb_set_nt_username(u, row[8], PDB_SET);
 238         pdb_set_fullname(u, row[9], PDB_SET);
 239         pdb_set_homedir(u, row[10], PDB_SET);
 240         pdb_set_dir_drive(u, row[11], PDB_SET);
 241         pdb_set_logon_script(u, row[12], PDB_SET);
 242         pdb_set_profile_path(u, row[13], PDB_SET);
 243         pdb_set_acct_desc(u, row[14], PDB_SET);
 244         pdb_set_workstations(u, row[15], PDB_SET);
 245         pdb_set_unknown_str(u, row[16], PDB_SET);
 246         pdb_set_munged_dial(u, row[17], PDB_SET);
 247
 248         if (row[18])
 249                 pdb_set_uid(u, xatol(row[18]), PDB_SET);
 250         if (row[19])
 251                 pdb_set_gid(u, xatol(row[19]), PDB_SET);
 252
 253         string_to_sid(&sid, row[20]);
 254         pdb_set_user_sid(u, &sid, PDB_SET);
 255         string_to_sid(&sid, row[21]);
 256         pdb_set_group_sid(u, &sid, PDB_SET);
 257
 258         if (pdb_gethexpwd(row[22], temp), PDB_SET)
 259                 pdb_set_lanman_passwd(u, temp, PDB_SET);
 260         if (pdb_gethexpwd(row[23], temp), PDB_SET)
 261                 pdb_set_nt_passwd(u, temp, PDB_SET);
 262
 263         /* Only use plaintext password storage when lanman and nt are
 264          * NOT used */
 265         if (!row[22] || !row[23])
 266                 pdb_set_plaintext_passwd(u, row[24]);
 267
 268         pdb_set_acct_ctrl(u, xatol(row[25]), PDB_SET);
 269         pdb_set_unknown_3(u, xatol(row[26]), PDB_SET);
 270         pdb_set_logon_divs(u, xatol(row[27]), PDB_SET);
 271         pdb_set_hours_len(u, xatol(row[28]), PDB_SET);
 272         pdb_set_unknown_5(u, xatol(row[29]), PDB_SET);
 273         pdb_set_unknown_6(u, xatol(row[30]), PDB_SET);
 274
 275         return NT_STATUS_OK;
 276 }
 277
 278 static NTSTATUS mysqlsam_setsampwent(struct pdb_methods *methods, BOOL update)
 279 {
 280         struct pdb_mysql_data *data =
 281                 (struct pdb_mysql_data *) methods->private_data;
 282         char *query;
 283         int ret;
 284
 285         if (!data || !(data->handle)) {
 286                 DEBUG(0, ("invalid handle!\n"));
 287                 return NT_STATUS_INVALID_HANDLE;
 288         }
 289
 290         asprintf(&query,
 291                          "SELECT %s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s FROM %s",
 292                          config_value_read(data, "logon time column",
 293                                                            CONFIG_LOGON_TIME_DEFAULT),
 294                          config_value_read(data, "logoff time column",
 295                                                            CONFIG_LOGOFF_TIME_DEFAULT),
 296                          config_value_read(data, "kickoff time column",
 297                                                            CONFIG_KICKOFF_TIME_DEFAULT),
 298                          config_value_read(data, "pass last set time column",
 299                                                            CONFIG_PASS_LAST_SET_TIME_DEFAULT),
 300                          config_value_read(data, "pass can change time column",
 301                                                            CONFIG_PASS_CAN_CHANGE_TIME_DEFAULT),
 302                          config_value_read(data, "pass must change time column",
 303                                                            CONFIG_PASS_MUST_CHANGE_TIME_DEFAULT),
 304                          config_value_read(data, "username column",
 305                                                            CONFIG_USERNAME_DEFAULT),
 306                          config_value_read(data, "domain column",
 307                                                            CONFIG_DOMAIN_DEFAULT),
 308                          config_value_read(data, "nt username column",
 309                                                            CONFIG_NT_USERNAME_DEFAULT),
 310                          config_value_read(data, "fullname column",
 311                                                            CONFIG_FULLNAME_DEFAULT),
 312                          config_value_read(data, "home dir column",
 313                                                            CONFIG_HOME_DIR_DEFAULT),
 314                          config_value_read(data, "dir drive column",
 315                                                            CONFIG_DIR_DRIVE_DEFAULT),
 316                          config_value_read(data, "logon script column",
 317                                                            CONFIG_LOGON_SCRIPT_DEFAULT),
 318                          config_value_read(data, "profile path column",
 319                                                            CONFIG_PROFILE_PATH_DEFAULT),
 320                          config_value_read(data, "acct desc column",
 321                                                            CONFIG_ACCT_DESC_DEFAULT),
 322                          config_value_read(data, "workstations column",
 323                                                            CONFIG_WORKSTATIONS_DEFAULT),
 324                          config_value_read(data, "unknown string column",
 325                                                            CONFIG_UNKNOWN_STR_DEFAULT),
 326                          config_value_read(data, "munged dial column",
 327                                                            CONFIG_MUNGED_DIAL_DEFAULT),
 328                          config_value_read(data, "uid column", CONFIG_UID_DEFAULT),
 329                          config_value_read(data, "gid column", CONFIG_GID_DEFAULT),
 330                          config_value_read(data, "user sid column",
 331                                                            CONFIG_USER_SID_DEFAULT),
 332                          config_value_read(data, "group sid column",
 333                                                            CONFIG_GROUP_SID_DEFAULT),
 334                          config_value_read(data, "lanman pass column",
 335                                                            CONFIG_LM_PW_DEFAULT),
 336                          config_value_read(data, "nt pass column",
 337                                                            CONFIG_NT_PW_DEFAULT),
 338                          config_value_read(data, "plain pass column",
 339                                                            CONFIG_PLAIN_PW_DEFAULT),
 340                          config_value_read(data, "acct ctrl column",
 341                                                            CONFIG_ACCT_CTRL_DEFAULT),
 342                          config_value_read(data, "unknown 3 column",
 343                                                            CONFIG_UNKNOWN_3_DEFAULT),
 344                          config_value_read(data, "logon divs column",
 345                                                            CONFIG_LOGON_DIVS_DEFAULT),
 346                          config_value_read(data, "hours len column",
 347                                                            CONFIG_HOURS_LEN_DEFAULT),
 348                          config_value_read(data, "unknown 5 column",
 349                                                            CONFIG_UNKNOWN_5_DEFAULT),
 350                          config_value_read(data, "unknown 6 column",
 351                                                            CONFIG_UNKNOWN_6_DEFAULT),
 352                          config_value(data, "table", CONFIG_TABLE_DEFAULT)
 353                                  );
 354
 355         ret = mysql_query(data->handle, query);
 356         SAFE_FREE(query);
 357
 358         if (ret) {
 359                 DEBUG(0,
 360                            ("Error executing query: %s\n", mysql_error(data->handle)));
 361                 return NT_STATUS_UNSUCCESSFUL;
 362         }
 363
 364         data->pwent = mysql_store_result(data->handle);
 365
 366         if (data->pwent == NULL) {
 367                 DEBUG(0,
 368                         ("Error storing results: %s\n", mysql_error(data->handle)));
 369                 return NT_STATUS_UNSUCCESSFUL;
 370         }
 371
 372         DEBUG(5,
 373                 ("mysqlsam_setsampwent succeeded(%d results)!\n",
 374                                 mysql_num_fields(data->pwent)));
 375
 376         return NT_STATUS_OK;
 377 }
 378
 379 /***************************************************************
 380   End enumeration of the passwd list.
 381  ****************************************************************/
 382
 383 static void mysqlsam_endsampwent(struct pdb_methods *methods)
 384 {
 385         struct pdb_mysql_data *data =
 386                 (struct pdb_mysql_data *) methods->private_data;
 387
 388         if (data == NULL) {
 389                 DEBUG(0, ("invalid handle!\n"));
 390                 return;
 391         }
 392
 393         if (data->pwent != NULL)
 394                 mysql_free_result(data->pwent);
 395
 396         data->pwent = NULL;
 397
 398         DEBUG(5, ("mysql_endsampwent called\n"));
 399 }
 400
 401 /*****************************************************************
 402   Get one SAM_ACCOUNT from the list (next in line)
 403  *****************************************************************/
 404
 405 static NTSTATUS mysqlsam_getsampwent(struct pdb_methods *methods, SAM_ACCOUNT * user)
 406 {
 407         struct pdb_mysql_data *data;
 408
 409         SET_DATA(data, methods);
 410
 411         if (data->pwent == NULL) {
 412                 DEBUG(0, ("invalid pwent\n"));
 413                 return NT_STATUS_INVALID_PARAMETER;
 414         }
 415
 416         return row_to_sam_account(data->pwent, user);
 417 }
 418
 419 static NTSTATUS mysqlsam_select_by_field(struct pdb_methods * methods, SAM_ACCOUNT * user,
 420                                                  const char *field, const char *sname)
 421 {
 422         char *esc_sname;
 423         char *query;
 424         NTSTATUS ret;
 425         MYSQL_RES *res;
 426         int mysql_ret;
 427         struct pdb_mysql_data *data;
 428         char *tmp_sname;
 429
 430         SET_DATA(data, methods);
 431
 432         esc_sname = malloc(strlen(sname) * 2 + 1);
 433         if (!esc_sname) {
 434                 return NT_STATUS_NO_MEMORY;
 435         }
 436
 437         DEBUG(5,
 438                   ("mysqlsam_select_by_field: getting data where %s = %s(nonescaped)\n",
 439                    field, sname));
 440
 441         tmp_sname = smb_xstrdup(sname);
 442
 443         /* Escape sname */
 444         mysql_real_escape_string(data->handle, esc_sname, tmp_sname,
 445                                                          strlen(tmp_sname));
 446
 447         SAFE_FREE(tmp_sname);
 448
 449         if (user == NULL) {
 450                 DEBUG(0, ("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n"));
 451                 SAFE_FREE(esc_sname);
 452                 return NT_STATUS_INVALID_PARAMETER;
 453         }
 454
 455         asprintf(&query,
 456                          "SELECT %s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s FROM %s WHERE %s = '%s'",
 457                          config_value_read(data, "logon time column",
 458                                                            CONFIG_LOGON_TIME_DEFAULT),
 459                          config_value_read(data, "logoff time column",
 460                                                            CONFIG_LOGOFF_TIME_DEFAULT),
 461                          config_value_read(data, "kickoff time column",
 462                                                            CONFIG_KICKOFF_TIME_DEFAULT),
 463                          config_value_read(data, "pass last set time column",
 464                                                            CONFIG_PASS_LAST_SET_TIME_DEFAULT),
 465                          config_value_read(data, "pass can change time column",
 466                                                            CONFIG_PASS_CAN_CHANGE_TIME_DEFAULT),
 467                          config_value_read(data, "pass must change time column",
 468                                                            CONFIG_PASS_MUST_CHANGE_TIME_DEFAULT),
 469                          config_value_read(data, "username column",
 470                                                            CONFIG_USERNAME_DEFAULT),
 471                          config_value_read(data, "domain column",
 472                                                            CONFIG_DOMAIN_DEFAULT),
 473                          config_value_read(data, "nt username column",
 474                                                            CONFIG_NT_USERNAME_DEFAULT),
 475                          config_value_read(data, "fullname column",
 476                                                            CONFIG_FULLNAME_DEFAULT),
 477                          config_value_read(data, "home dir column",
 478                                                            CONFIG_HOME_DIR_DEFAULT),
 479                          config_value_read(data, "dir drive column",
 480                                                            CONFIG_DIR_DRIVE_DEFAULT),
 481                          config_value_read(data, "logon script column",
 482                                                            CONFIG_LOGON_SCRIPT_DEFAULT),
 483                          config_value_read(data, "profile path column",
 484                                                            CONFIG_PROFILE_PATH_DEFAULT),
 485                          config_value_read(data, "acct desc column",
 486                                                            CONFIG_ACCT_DESC_DEFAULT),
 487                          config_value_read(data, "workstations column",
 488                                                            CONFIG_WORKSTATIONS_DEFAULT),
 489                          config_value_read(data, "unknown string column",
 490                                                            CONFIG_UNKNOWN_STR_DEFAULT),
 491                          config_value_read(data, "munged dial column",
 492                                                            CONFIG_MUNGED_DIAL_DEFAULT),
 493                          config_value_read(data, "uid column", CONFIG_UID_DEFAULT),
 494                          config_value_read(data, "gid column", CONFIG_GID_DEFAULT),
 495                          config_value_read(data, "user sid column",
 496                                                            CONFIG_USER_SID_DEFAULT),
 497                          config_value_read(data, "group sid column",
 498                                                            CONFIG_GROUP_SID_DEFAULT),
 499                          config_value_read(data, "lanman pass column",
 500                                                            CONFIG_LM_PW_DEFAULT),
 501                          config_value_read(data, "nt pass column",
 502                                                            CONFIG_NT_PW_DEFAULT),
 503                          config_value_read(data, "plain pass column",
 504                                                            CONFIG_PLAIN_PW_DEFAULT),
 505                          config_value_read(data, "acct ctrl column",
 506                                                            CONFIG_ACCT_CTRL_DEFAULT),
 507                          config_value_read(data, "unknown 3 column",
 508                                                            CONFIG_UNKNOWN_3_DEFAULT),
 509                          config_value_read(data, "logon divs column",
 510                                                            CONFIG_LOGON_DIVS_DEFAULT),
 511                          config_value_read(data, "hours len column",
 512                                                            CONFIG_HOURS_LEN_DEFAULT),
 513                          config_value_read(data, "unknown 5 column",
 514                                                            CONFIG_UNKNOWN_5_DEFAULT),
 515                          config_value_read(data, "unknown 6 column",
 516                                                            CONFIG_UNKNOWN_6_DEFAULT),
 517                          config_value(data, "table", CONFIG_TABLE_DEFAULT), field,
 518                          esc_sname);
 519
 520         SAFE_FREE(esc_sname);
 521
 522         mysql_ret = mysql_query(data->handle, query);
 523
 524         SAFE_FREE(query);
 525
 526         if (mysql_ret) {
 527                 DEBUG(0,
 528                         ("Error while executing MySQL query: %s\n",
 529                                 mysql_error(data->handle)));
 530                 return NT_STATUS_UNSUCCESSFUL;
 531         }
 532
 533         res = mysql_store_result(data->handle);
 534         if (res == NULL) {
 535                 DEBUG(0,
 536                         ("Error storing results: %s\n", mysql_error(data->handle)));
 537                 return NT_STATUS_UNSUCCESSFUL;
 538         }
 539
 540         ret = row_to_sam_account(res, user);
 541         mysql_free_result(res);
 542
 543         return ret;
 544 }
 545
 546 /******************************************************************
 547   Lookup a name in the SAM database
 548  ******************************************************************/
 549
 550 static NTSTATUS mysqlsam_getsampwnam(struct pdb_methods *methods, SAM_ACCOUNT * user,
 551                                          const char *sname)
 552 {
 553         struct pdb_mysql_data *data;
 554
 555         SET_DATA(data, methods);
 556
 557         if (!sname) {
 558                 DEBUG(0, ("invalid name specified"));
 559                 return NT_STATUS_INVALID_PARAMETER;
 560         }
 561
 562         return mysqlsam_select_by_field(methods, user,
 563                         config_value_read(data, "username column",
 564                                 CONFIG_USERNAME_DEFAULT), sname);
 565 }
 566
 567
 568 /***************************************************************************
 569   Search by sid
 570  **************************************************************************/
 571
 572 static NTSTATUS mysqlsam_getsampwsid(struct pdb_methods *methods, SAM_ACCOUNT * user,
 573                                          const DOM_SID * sid)
 574 {
 575         struct pdb_mysql_data *data;
 576         fstring sid_str;
 577
 578         SET_DATA(data, methods);
 579
 580         sid_to_string(sid_str, sid);
 581
 582         return mysqlsam_select_by_field(methods, user,
 583                         config_value_read(data, "user sid column",
 584                                 CONFIG_USER_SID_DEFAULT), sid_str);
 585 }
 586
 587 /***************************************************************************
 588   Delete a SAM_ACCOUNT
 589  ****************************************************************************/
 590
 591 static NTSTATUS mysqlsam_delete_sam_account(struct pdb_methods *methods,
 592                                                         SAM_ACCOUNT * sam_pass)
 593 {
 594         const char *sname = pdb_get_username(sam_pass);
 595         char *esc;
 596         char *query;
 597         int ret;
 598         struct pdb_mysql_data *data;
 599         char *tmp_sname;
 600
 601         SET_DATA(data, methods);
 602
 603         if (!methods) {
 604                 DEBUG(0, ("invalid methods!\n"));
 605                 return NT_STATUS_INVALID_PARAMETER;
 606         }
 607
 608         data = (struct pdb_mysql_data *) methods->private_data;
 609         if (!data || !(data->handle)) {
 610                 DEBUG(0, ("invalid handle!\n"));
 611                 return NT_STATUS_INVALID_HANDLE;
 612         }
 613
 614         if (!sname) {
 615                 DEBUG(0, ("invalid name specified\n"));
 616                 return NT_STATUS_INVALID_PARAMETER;
 617         }
 618
 619         /* Escape sname */
 620         esc = malloc(strlen(sname) * 2 + 1);
 621         if (!esc) {
 622                 DEBUG(0, ("Can't allocate memory to store escaped name\n"));
 623                 return NT_STATUS_NO_MEMORY;
 624         }
 625
 626         tmp_sname = smb_xstrdup(sname);
 627
 628         mysql_real_escape_string(data->handle, esc, tmp_sname,
 629                                                          strlen(tmp_sname));
 630
 631         SAFE_FREE(tmp_sname);
 632
 633         asprintf(&query, "DELETE FROM %s WHERE %s = '%s'",
 634                          config_value(data, "table", CONFIG_TABLE_DEFAULT),
 635                          config_value_read(data, "username column",
 636                                                            CONFIG_USERNAME_DEFAULT), esc);
 637
 638         SAFE_FREE(esc);
 639
 640         ret = mysql_query(data->handle, query);
 641
 642         SAFE_FREE(query);
 643
 644         if (ret) {
 645                 DEBUG(0,
 646                           ("Error while executing query: %s\n",
 647                            mysql_error(data->handle)));
 648                 return NT_STATUS_UNSUCCESSFUL;
 649         }
 650
 651         DEBUG(5, ("User '%s' deleted\n", sname));
 652         return NT_STATUS_OK;
 653 }
 654
 655 static NTSTATUS mysqlsam_replace_sam_account(struct pdb_methods *methods,
 656                                                          const SAM_ACCOUNT * newpwd, char isupdate)
 657 {
 658         pstring temp;
 659         uint32 store = pdb_get_init_flag(newpwd);
 660         struct pdb_mysql_data *data;
 661         pdb_mysql_query query;
 662         fstring sid_str;
 663
 664         if (!methods) {
 665                 DEBUG(0, ("invalid methods!\n"));
 666                 return NT_STATUS_INVALID_PARAMETER;
 667         }
 668
 669         data = (struct pdb_mysql_data *) methods->private_data;
 670         if (data == NULL || data->handle == NULL) {
 671                 DEBUG(0, ("invalid handle!\n"));
 672                 return NT_STATUS_INVALID_HANDLE;
 673         }
 674         query.update = isupdate;
 675
 676         /* I know this is somewhat overkill but only the talloc
 677          * functions have asprint_append and the 'normal' asprintf
 678          * is a GNU extension */
 679         query.mem_ctx = talloc_init();
 680         query.part2 = talloc_asprintf(query.mem_ctx, "%s", "");
 681         if (query.update) {
 682                 query.part1 =
 683                         talloc_asprintf(query.mem_ctx, "UPDATE %s SET ",
 684                                                         config_value(data, "table",
 685                                                                                  CONFIG_TABLE_DEFAULT));
 686         } else {
 687                 query.part1 =
 688                         talloc_asprintf(query.mem_ctx, "INSERT INTO %s (",
 689                                                         config_value(data, "table",
 690                                                                                  CONFIG_TABLE_DEFAULT));
 691         }
 692
 693         pdb_mysql_int_field(methods, &query,
 694                                                 config_value_write(data, "acct ctrl column",
 695                                                                                    CONFIG_ACCT_CTRL_DEFAULT),
 696                                                 pdb_get_acct_ctrl(newpwd));
 697
 698         if (store & PDB_LOGONTIME) {
 699                 pdb_mysql_int_field(methods, &query,
 700                                                         config_value_write(data,
 701                                                                                            "logon time column",
 702                                                                                            CONFIG_LOGON_TIME_DEFAULT),
 703                                                         pdb_get_logon_time(newpwd));
 704         }
 705
 706         if (store & PDB_LOGOFFTIME) {
 707                 pdb_mysql_int_field(methods, &query,
 708                                                         config_value_write(data,
 709                                                                                            "logoff time column",
 710                                                                                            CONFIG_LOGOFF_TIME_DEFAULT),
 711                                                         pdb_get_logoff_time(newpwd));
 712         }
 713
 714         if (store & PDB_KICKOFFTIME) {
 715                 pdb_mysql_int_field(methods, &query,
 716                                                         config_value_write(data,
 717                                                                                            "kickoff time column",
 718                                                                                            CONFIG_KICKOFF_TIME_DEFAULT),
 719                                                         pdb_get_kickoff_time(newpwd));
 720         }
 721
 722         if (store & PDB_CANCHANGETIME) {
 723                 pdb_mysql_int_field(methods, &query,
 724                                                         config_value_write(data,
 725                                                                                            "pass can change time column",
 726                                                                                            CONFIG_PASS_CAN_CHANGE_TIME_DEFAULT),
 727                                                         pdb_get_pass_can_change_time(newpwd));
 728         }
 729
 730         if (store & PDB_MUSTCHANGETIME) {
 731                 pdb_mysql_int_field(methods, &query,
 732                                                         config_value_write(data,
 733                                                                                            "pass must change time column",
 734                                                                                            CONFIG_PASS_MUST_CHANGE_TIME_DEFAULT),
 735                                                         pdb_get_pass_must_change_time(newpwd));
 736         }
 737
 738         if (pdb_get_pass_last_set_time(newpwd)) {
 739                 pdb_mysql_int_field(methods, &query,
 740                                                         config_value_write(data,
 741                                                                                            "pass must change time column",
 742                                                                                            CONFIG_PASS_LAST_SET_TIME_DEFAULT),
 743                                                         pdb_get_pass_last_set_time(newpwd));
 744         }
 745
 746         if (pdb_get_hours_len(newpwd)) {
 747                 pdb_mysql_int_field(methods, &query,
 748                                                         config_value_write(data,
 749                                                                                            "hours len column",
 750                                                                                            CONFIG_HOURS_LEN_DEFAULT),
 751                                                         pdb_get_hours_len(newpwd));
 752         }
 753
 754         if (pdb_get_logon_divs(newpwd)) {
 755                 pdb_mysql_int_field(methods, &query,
 756                                                         config_value_write(data,
 757                                                                                            "logon divs column",
 758                                                                                            CONFIG_LOGON_DIVS_DEFAULT),
 759                                                         pdb_get_logon_divs(newpwd));
 760         }
 761
 762         if (store & PDB_UID) {
 763                 pdb_mysql_int_field(methods, &query,
 764                                                         config_value_write(data, "uid column",
 765                                                                                            CONFIG_UID_DEFAULT),
 766                                                         pdb_get_uid(newpwd));
 767         }
 768
 769         if (store & PDB_GID) {
 770                 pdb_mysql_int_field(methods, &query,
 771                                                         config_value_write(data, "gid column",
 772                                                                                            CONFIG_GID_DEFAULT),
 773                                                         pdb_get_gid(newpwd));
 774         }
 775
 776         pdb_mysql_string_field(methods, &query,
 777                                                    config_value_write(data, "user sid column",
 778                                                                                           CONFIG_USER_SID_DEFAULT),
 779                                                    sid_to_string(sid_str, (DOM_SID *)
 780                                                                                  pdb_get_user_sid(newpwd)));
 781
 782         pdb_mysql_string_field(methods, &query,
 783                                                    config_value_write(data, "group sid column",
 784                                                                                           CONFIG_GROUP_SID_DEFAULT),
 785                                                    sid_to_string(sid_str, (DOM_SID *)
 786                                                                                  pdb_get_group_sid(newpwd)));
 787
 788         pdb_mysql_string_field(methods, &query,
 789                                                    config_value_write(data, "username column",
 790                                                                                           CONFIG_USERNAME_DEFAULT),
 791                                                    pdb_get_username(newpwd));
 792
 793         pdb_mysql_string_field(methods, &query,
 794                                                    config_value_write(data, "domain column",
 795                                                                                           CONFIG_DOMAIN_DEFAULT),
 796                                                    pdb_get_domain(newpwd));
 797
 798         pdb_mysql_string_field(methods, &query,
 799                                                    config_value_write(data,
 800                                                                                           "nt username column",
 801                                                                                           CONFIG_NT_USERNAME_DEFAULT),
 802                                                    pdb_get_nt_username(newpwd));
 803
 804         pdb_mysql_string_field(methods, &query,
 805                                                    config_value_write(data, "fullname column",
 806                                                                                           CONFIG_FULLNAME_DEFAULT),
 807                                                    pdb_get_fullname(newpwd));
 808
 809         pdb_mysql_string_field(methods, &query,
 810                                                    config_value_write(data,
 811                                                                                           "logon script column",
 812                                                                                           CONFIG_LOGON_SCRIPT_DEFAULT),
 813                                                    pdb_get_logon_script(newpwd));
 814
 815         pdb_mysql_string_field(methods, &query,
 816                                                    config_value_write(data,
 817                                                                                           "profile path column",
 818                                                                                           CONFIG_PROFILE_PATH_DEFAULT),
 819                                                    pdb_get_profile_path(newpwd));
 820
 821         pdb_mysql_string_field(methods, &query,
 822                                                    config_value_write(data, "dir drive column",
 823                                                                                           CONFIG_DIR_DRIVE_DEFAULT),
 824                                                    pdb_get_dir_drive(newpwd));
 825
 826         pdb_mysql_string_field(methods, &query,
 827                                                    config_value_write(data, "home dir column",
 828                                                                                           CONFIG_HOME_DIR_DEFAULT),
 829                                                    pdb_get_homedir(newpwd));
 830
 831         pdb_mysql_string_field(methods, &query,
 832                                                    config_value_write(data,
 833                                                                                           "workstations column",
 834                                                                                           CONFIG_WORKSTATIONS_DEFAULT),
 835                                                    pdb_get_workstations(newpwd));
 836
 837         pdb_mysql_string_field(methods, &query,
 838                                                    config_value_write(data,
 839                                                                                           "unknown string column",
 840                                                                                           CONFIG_UNKNOWN_STR_DEFAULT),
 841                                                    pdb_get_workstations(newpwd));
 842
 843         pdb_sethexpwd(temp, pdb_get_lanman_passwd(newpwd),
 844                                   pdb_get_acct_ctrl(newpwd));
 845         pdb_mysql_string_field(methods, &query,
 846                                                    config_value_write(data,
 847                                                                                           "lanman pass column",
 848                                                                                           CONFIG_LM_PW_DEFAULT), temp);
 849
 850         pdb_sethexpwd(temp, pdb_get_nt_passwd(newpwd),
 851                                   pdb_get_acct_ctrl(newpwd));
 852         pdb_mysql_string_field(methods, &query,
 853                                                    config_value_write(data, "nt pass column",
 854                                                                                           CONFIG_NT_PW_DEFAULT), temp);
 855
 856         if (query.update) {
 857                 query.part1[strlen(query.part1) - 1] = '\0';
 858                 query.part1 =
 859                         talloc_asprintf_append(query.mem_ctx, query.part1,
 860                                                                    " WHERE %s = '%s'",
 861                                                                    config_value_read(data,
 862                                                                                                          "user sid column",
 863                                                                                                          CONFIG_USER_SID_DEFAULT),
 864                                                                    sid_to_string(sid_str, (DOM_SID *)
 865                                                                                                  pdb_get_user_sid
 866                                                                                                  (newpwd)));
 867         } else {
 868                 query.part2[strlen(query.part2) - 1] = ')';
 869                 query.part1[strlen(query.part1) - 1] = ')';
 870                 query.part1 =
 871                         talloc_asprintf_append(query.mem_ctx, query.part1,
 872                                                                    " VALUES (%s", query.part2);
 873         }
 874
 875         DEBUG(0, ("%s\n", query.part1));
 876         /* Execute the query */
 877         if (mysql_query(data->handle, query.part1)) {
 878                 DEBUG(0,
 879                           ("Error executing %s, %s\n", query.part1,
 880                            mysql_error(data->handle)));
 881                 return NT_STATUS_INVALID_PARAMETER;
 882         }
 883         talloc_destroy(query.mem_ctx);
 884         return NT_STATUS_OK;
 885 }
 886
 887 static NTSTATUS mysqlsam_add_sam_account(struct pdb_methods *methods, SAM_ACCOUNT * newpwd)
 888 {
 889         return mysqlsam_replace_sam_account(methods, newpwd, 0);
 890 }
 891
 892 static NTSTATUS mysqlsam_update_sam_account(struct pdb_methods *methods,
 893                                                         SAM_ACCOUNT * newpwd)
 894 {
 895         return mysqlsam_replace_sam_account(methods, newpwd, 1);
 896 }
 897
 898 NTSTATUS pdb_init(PDB_CONTEXT * pdb_context, PDB_METHODS ** pdb_method,
 899                  char *location)
 900 {
 901         NTSTATUS nt_status;
 902         struct pdb_mysql_data *data;
 903
 904         mysqlsam_debug_level = debug_add_class("mysqlsam");
 905         if (mysqlsam_debug_level == -1) {
 906                 mysqlsam_debug_level = DBGC_ALL;
 907                 DEBUG(0,
 908                           ("mysqlsam: Couldn't register custom debugging class!\n"));
 909         }
 910
 911         if (!pdb_context) {
 912                 DEBUG(0, ("invalid pdb_methods specified\n"));
 913                 return NT_STATUS_UNSUCCESSFUL;
 914         }
 915
 916         if (!NT_STATUS_IS_OK
 917                 (nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
 918                 return nt_status;
 919         }
 920
 921         (*pdb_method)->name = "mysqlsam";
 922
 923         (*pdb_method)->setsampwent = mysqlsam_setsampwent;
 924         (*pdb_method)->endsampwent = mysqlsam_endsampwent;
 925         (*pdb_method)->getsampwent = mysqlsam_getsampwent;
 926         (*pdb_method)->getsampwnam = mysqlsam_getsampwnam;
 927         (*pdb_method)->getsampwsid = mysqlsam_getsampwsid;
 928         (*pdb_method)->add_sam_account = mysqlsam_add_sam_account;
 929         (*pdb_method)->update_sam_account = mysqlsam_update_sam_account;
 930         (*pdb_method)->delete_sam_account = mysqlsam_delete_sam_account;
 931
 932         data = talloc(pdb_context->mem_ctx, sizeof(struct pdb_mysql_data));
 933         (*pdb_method)->private_data = data;
 934         data->handle = NULL;
 935         data->pwent = NULL;
 936
 937         if (!location) {
 938                 DEBUG(0, ("No identifier specified. See README for details\n"));
 939                 return NT_STATUS_INVALID_PARAMETER;
 940         }
 941
 942         data->location = smb_xstrdup(location);
 943
 944         DEBUG(1,
 945                   ("Connecting to database server, host: %s, user: %s, password: %s, database: %s, port: %ld\n",
 946                    config_value(data, "mysql host", CONFIG_HOST_DEFAULT),
 947                    config_value(data, "mysql user", CONFIG_USER_DEFAULT),
 948                    config_value(data, "mysql password", CONFIG_PASS_DEFAULT),
 949                    config_value(data, "mysql database", CONFIG_DB_DEFAULT),
 950                    xatol(config_value(data, "mysql port", CONFIG_PORT_DEFAULT))));
 951
 952         /* Do the mysql initialization */
 953         data->handle = mysql_init(NULL);
 954         if (!data->handle) {
 955                 DEBUG(0, ("Failed to connect to server\n"));
 956                 return NT_STATUS_UNSUCCESSFUL;
 957         }
 958         /* Process correct entry in $HOME/.my.conf */
 959         if (!mysql_real_connect(data->handle,
 960                         config_value(data, "mysql host", CONFIG_HOST_DEFAULT),
 961                         config_value(data, "mysql user", CONFIG_USER_DEFAULT),
 962                         config_value(data, "mysql password", CONFIG_PASS_DEFAULT),
 963                         config_value(data, "mysql database", CONFIG_DB_DEFAULT),
 964                         xatol(config_value (data, "mysql port", CONFIG_PORT_DEFAULT)),
 965                         NULL, 0)) {
 966                 DEBUG(0,
 967                           ("Failed to connect to mysql database: error: %s\n",
 968                            mysql_error(data->handle)));
 969                 return NT_STATUS_UNSUCCESSFUL;
 970         }
 971
 972         DEBUG(5, ("Connected to mysql db\n"));
 973
 974         return NT_STATUS_OK;
 975 }