source/modules/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 typedef struct pdb_mysql_data {
  68         MYSQL *handle;
  69         MYSQL_RES *pwent;
  70         const char *location;
  71 } pdb_mysql_data;
  72
  73 /* Used to construct insert and update queries */
  74
  75 typedef struct pdb_mysql_query {
  76         char update;
  77         TALLOC_CTX *mem_ctx;
  78         char *part1;
  79         char *part2;
  80 } pdb_mysql_query;
  81 #define SET_DATA(data,methods) { \
  82         if(!methods){ \
  83                 DEBUG(0, ("invalid methods!\n")); \
  84                         return NT_STATUS_INVALID_PARAMETER; \
  85         } \
  86         data = (struct pdb_mysql_data *)methods->private_data; \
  87                 if(!data || !(data->handle)){ \
  88                         DEBUG(0, ("invalid handle!\n")); \
  89                                 return NT_STATUS_INVALID_HANDLE; \
  90                 } \
  91 }
  92
  93 static void pdb_mysql_int_field(struct pdb_methods *m,
  94                                         struct pdb_mysql_query *q, char *name, int value)
  95 {
  96         if (!name || strchr(name, '\''))
  97                 return;                 /* This field shouldn't be set by us */
  98
  99         if (q->update) {
 100                 q->part1 =
 101                         talloc_asprintf_append(q->mem_ctx, q->part1,
 102                                                                    "%s = %d,", name, value);
 103         } else {
 104                 q->part1 =
 105                         talloc_asprintf_append(q->mem_ctx, q->part1, "%s,", name);
 106                 q->part2 =
 107                         talloc_asprintf_append(q->mem_ctx, q->part2, "%d,", value);
 108         }
 109 }
 110
 111 static NTSTATUS pdb_mysql_string_field(struct pdb_methods *methods,
 112                                            struct pdb_mysql_query *q,
 113                                            char *name, const char *value)
 114 {
 115         char *esc_value;
 116         struct pdb_mysql_data *data;
 117         char *tmp_value;
 118
 119         SET_DATA(data, methods);
 120
 121         if (!name || !value || !strcmp(value, "") || strchr(name, '\''))
 122                 return NT_STATUS_INVALID_PARAMETER;   /* This field shouldn't be set by module */
 123
 124         esc_value = malloc(strlen(value) * 2 + 1);
 125
 126         tmp_value = smb_xstrdup(value);
 127         mysql_real_escape_string(data->handle, esc_value, tmp_value,
 128                                                          strlen(tmp_value));
 129         SAFE_FREE(tmp_value);
 130
 131         if (q->update) {
 132                 q->part1 =
 133                         talloc_asprintf_append(q->mem_ctx, q->part1,
 134                                                                    "%s = '%s',", name, esc_value);
 135         } else {
 136                 q->part1 =
 137                         talloc_asprintf_append(q->mem_ctx, q->part1, "%s,", name);
 138                 q->part2 =
 139                         talloc_asprintf_append(q->mem_ctx, q->part2, "'%s',",
 140                                                                    esc_value);
 141         }
 142
 143         SAFE_FREE(esc_value);
 144
 145         return NT_STATUS_OK;
 146 }
 147
 148 static char * config_value(pdb_mysql_data * data, char *name, char *default_value)
 149 {
 150         if (lp_parm_string(NULL, data->location, name))
 151                 return lp_parm_string(NULL, data->location, name);
 152
 153         return default_value;
 154 }
 155
 156 static char * config_value_write(pdb_mysql_data * data, char *name, char *default_value) {
 157         char *v = config_value(data, name, NULL);
 158         char *swrite;
 159
 160         if (!v)
 161                 return default_value;
 162
 163         swrite = strchr(v, ':');
 164
 165         /* Default to the same field as read field */
 166         if (!swrite)
 167                 return v;
 168
 169         swrite++;
 170
 171         /* If the field is 0 chars long, we shouldn't write to it */
 172         if (!strlen(swrite) || !strcmp(swrite, "NULL"))
 173                 return NULL;
 174
 175         /* Otherwise, use the additionally specified */
 176         return swrite;
 177 }
 178
 179 static const char * config_value_read(pdb_mysql_data * data, char *name, char *default_value)
 180 {
 181         char *v = config_value(data, name, NULL);
 182         char *swrite;
 183
 184         if (!v)
 185                 return default_value;
 186
 187         swrite = strchr(v, ':');
 188
 189         /* If no write is specified, there are no problems */
 190         if (!swrite) {
 191                 if (strlen(v) == 0)
 192                         return "NULL";
 193                 return v;
 194         }
 195
 196         /* Otherwise, we have to cut the ':write_part' */
 197         *swrite = '\0';
 198         if (strlen(v) == 0)
 199                 return "NULL";
 200
 201         return v;
 202 }
 203
 204 /* Wrapper for atol that returns 0 if 'a' points to NULL */
 205 static long xatol(char *a)
 206 {
 207         long ret = 0;
 208
 209         if (a != NULL)
 210                 ret = atol(a);
 211
 212         return ret;
 213 }
 214
 215 static NTSTATUS row_to_sam_account(MYSQL_RES * r, SAM_ACCOUNT * u)
 216 {
 217         MYSQL_ROW row;
 218         pstring temp;
 219         unsigned int num_fields;
 220         DOM_SID sid;
 221
 222         num_fields = mysql_num_fields(r);
 223         row = mysql_fetch_row(r);
 224         if (!row)
 225                 return NT_STATUS_INVALID_PARAMETER;
 226
 227         pdb_set_logon_time(u, xatol(row[0]), PDB_SET);
 228         pdb_set_logoff_time(u, xatol(row[1]), PDB_SET);
 229         pdb_set_kickoff_time(u, xatol(row[2]), PDB_SET);
 230         pdb_set_pass_last_set_time(u, xatol(row[3]), PDB_SET);
 231         pdb_set_pass_can_change_time(u, xatol(row[4]), PDB_SET);
 232         pdb_set_pass_must_change_time(u, xatol(row[5]), PDB_SET);
 233         pdb_set_username(u, row[6], PDB_SET);
 234         pdb_set_domain(u, row[7], PDB_SET);
 235         pdb_set_nt_username(u, row[8], PDB_SET);
 236         pdb_set_fullname(u, row[9], PDB_SET);
 237         pdb_set_homedir(u, row[10], PDB_SET);
 238         pdb_set_dir_drive(u, row[11], PDB_SET);
 239         pdb_set_logon_script(u, row[12], PDB_SET);
 240         pdb_set_profile_path(u, row[13], PDB_SET);
 241         pdb_set_acct_desc(u, row[14], PDB_SET);
 242         pdb_set_workstations(u, row[15], PDB_SET);
 243         pdb_set_unknown_str(u, row[16], PDB_SET);
 244         pdb_set_munged_dial(u, row[17], PDB_SET);
 245
 246         if (row[18])
 247                 pdb_set_uid(u, xatol(row[18]), PDB_SET);
 248         if (row[19])
 249                 pdb_set_gid(u, xatol(row[19]), PDB_SET);
 250
 251         string_to_sid(&sid, row[20]);
 252         pdb_set_user_sid(u, &sid, PDB_SET);
 253         string_to_sid(&sid, row[21]);
 254         pdb_set_group_sid(u, &sid, PDB_SET);
 255
 256         if (pdb_gethexpwd(row[22], temp), PDB_SET)
 257                 pdb_set_lanman_passwd(u, temp, PDB_SET);
 258         if (pdb_gethexpwd(row[23], temp), PDB_SET)
 259                 pdb_set_nt_passwd(u, temp, PDB_SET);
 260
 261         /* Only use plaintext password storage when lanman and nt are
 262          * NOT used */
 263         if (!row[22] || !row[23])
 264                 pdb_set_plaintext_passwd(u, row[24]);
 265
 266         pdb_set_acct_ctrl(u, xatol(row[25]), PDB_SET);
 267         pdb_set_unknown_3(u, xatol(row[26]), PDB_SET);
 268         pdb_set_logon_divs(u, xatol(row[27]), PDB_SET);
 269         pdb_set_hours_len(u, xatol(row[28]), PDB_SET);
 270         pdb_set_unknown_5(u, xatol(row[29]), PDB_SET);
 271         pdb_set_unknown_6(u, xatol(row[30]), PDB_SET);
 272
 273         return NT_STATUS_OK;
 274 }
 275
 276 static NTSTATUS mysqlsam_setsampwent(struct pdb_methods *methods, BOOL update)
 277 {
 278         struct pdb_mysql_data *data =
 279                 (struct pdb_mysql_data *) methods->private_data;
 280         char *query;
 281         int ret;
 282
 283         if (!data || !(data->handle)) {
 284                 DEBUG(0, ("invalid handle!\n"));
 285                 return NT_STATUS_INVALID_HANDLE;
 286         }
 287
 288         asprintf(&query,
 289                          "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",
 290                          config_value_read(data, "logon time column",
 291                                                            CONFIG_LOGON_TIME_DEFAULT),
 292                          config_value_read(data, "logoff time column",
 293                                                            CONFIG_LOGOFF_TIME_DEFAULT),
 294                          config_value_read(data, "kickoff time column",
 295                                                            CONFIG_KICKOFF_TIME_DEFAULT),
 296                          config_value_read(data, "pass last set time column",
 297                                                            CONFIG_PASS_LAST_SET_TIME_DEFAULT),
 298                          config_value_read(data, "pass can change time column",
 299                                                            CONFIG_PASS_CAN_CHANGE_TIME_DEFAULT),
 300                          config_value_read(data, "pass must change time column",
 301                                                            CONFIG_PASS_MUST_CHANGE_TIME_DEFAULT),
 302                          config_value_read(data, "username column",
 303                                                            CONFIG_USERNAME_DEFAULT),
 304                          config_value_read(data, "domain column",
 305                                                            CONFIG_DOMAIN_DEFAULT),
 306                          config_value_read(data, "nt username column",
 307                                                            CONFIG_NT_USERNAME_DEFAULT),
 308                          config_value_read(data, "fullname column",
 309                                                            CONFIG_FULLNAME_DEFAULT),
 310                          config_value_read(data, "home dir column",
 311                                                            CONFIG_HOME_DIR_DEFAULT),
 312                          config_value_read(data, "dir drive column",
 313                                                            CONFIG_DIR_DRIVE_DEFAULT),
 314                          config_value_read(data, "logon script column",
 315                                                            CONFIG_LOGON_SCRIPT_DEFAULT),
 316                          config_value_read(data, "profile path column",
 317                                                            CONFIG_PROFILE_PATH_DEFAULT),
 318                          config_value_read(data, "acct desc column",
 319                                                            CONFIG_ACCT_DESC_DEFAULT),
 320                          config_value_read(data, "workstations column",
 321                                                            CONFIG_WORKSTATIONS_DEFAULT),
 322                          config_value_read(data, "unknown string column",
 323                                                            CONFIG_UNKNOWN_STR_DEFAULT),
 324                          config_value_read(data, "munged dial column",
 325                                                            CONFIG_MUNGED_DIAL_DEFAULT),
 326                          config_value_read(data, "uid column", CONFIG_UID_DEFAULT),
 327                          config_value_read(data, "gid column", CONFIG_GID_DEFAULT),
 328                          config_value_read(data, "user sid column",
 329                                                            CONFIG_USER_SID_DEFAULT),
 330                          config_value_read(data, "group sid column",
 331                                                            CONFIG_GROUP_SID_DEFAULT),
 332                          config_value_read(data, "lanman pass column",
 333                                                            CONFIG_LM_PW_DEFAULT),
 334                          config_value_read(data, "nt pass column",
 335                                                            CONFIG_NT_PW_DEFAULT),
 336                          config_value_read(data, "plain pass column",
 337                                                            CONFIG_PLAIN_PW_DEFAULT),
 338                          config_value_read(data, "acct ctrl column",
 339                                                            CONFIG_ACCT_CTRL_DEFAULT),
 340                          config_value_read(data, "unknown 3 column",
 341                                                            CONFIG_UNKNOWN_3_DEFAULT),
 342                          config_value_read(data, "logon divs column",
 343                                                            CONFIG_LOGON_DIVS_DEFAULT),
 344                          config_value_read(data, "hours len column",
 345                                                            CONFIG_HOURS_LEN_DEFAULT),
 346                          config_value_read(data, "unknown 5 column",
 347                                                            CONFIG_UNKNOWN_5_DEFAULT),
 348                          config_value_read(data, "unknown 6 column",
 349                                                            CONFIG_UNKNOWN_6_DEFAULT),
 350                          config_value(data, "table", CONFIG_TABLE_DEFAULT)
 351                                  );
 352         DEBUG(5, ("Executing query %s\n", query));
 353
 354         ret = mysql_query(data->handle, query);
 355         SAFE_FREE(query);
 356
 357         if (ret) {
 358                 DEBUG(0,
 359                            ("Error executing MySQL query %s\n", mysql_error(data->handle)));
 360                 return NT_STATUS_UNSUCCESSFUL;
 361         }
 362
 363         data->pwent = mysql_store_result(data->handle);
 364
 365         if (data->pwent == NULL) {
 366                 DEBUG(0,
 367                         ("Error storing results: %s\n", mysql_error(data->handle)));
 368                 return NT_STATUS_UNSUCCESSFUL;
 369         }
 370
 371         DEBUG(5,
 372                 ("mysqlsam_setsampwent succeeded(%lu results)!\n",
 373                                 mysql_num_rows(data->pwent)));
 374
 375         return NT_STATUS_OK;
 376 }
 377
 378 /***************************************************************
 379   End enumeration of the passwd list.
 380  ****************************************************************/
 381
 382 static void mysqlsam_endsampwent(struct pdb_methods *methods)
 383 {
 384         struct pdb_mysql_data *data =
 385                 (struct pdb_mysql_data *) methods->private_data;
 386
 387         if (data == NULL) {
 388                 DEBUG(0, ("invalid handle!\n"));
 389                 return;
 390         }
 391
 392         if (data->pwent != NULL)
 393                 mysql_free_result(data->pwent);
 394
 395         data->pwent = NULL;
 396
 397         DEBUG(5, ("mysql_endsampwent called\n"));
 398 }
 399
 400 /*****************************************************************
 401   Get one SAM_ACCOUNT from the list (next in line)
 402  *****************************************************************/
 403
 404 static NTSTATUS mysqlsam_getsampwent(struct pdb_methods *methods, SAM_ACCOUNT * user)
 405 {
 406         struct pdb_mysql_data *data;
 407
 408         SET_DATA(data, methods);
 409
 410         if (data->pwent == NULL) {
 411                 DEBUG(0, ("invalid pwent\n"));
 412                 return NT_STATUS_INVALID_PARAMETER;
 413         }
 414
 415         return row_to_sam_account(data->pwent, user);
 416 }
 417
 418 static NTSTATUS mysqlsam_select_by_field(struct pdb_methods * methods, SAM_ACCOUNT * user,
 419                                                  const char *field, const char *sname)
 420 {
 421         char *esc_sname;
 422         char *query;
 423         NTSTATUS ret;
 424         MYSQL_RES *res;
 425         int mysql_ret;
 426         struct pdb_mysql_data *data;
 427         char *tmp_sname;
 428
 429         SET_DATA(data, methods);
 430
 431         esc_sname = malloc(strlen(sname) * 2 + 1);
 432         if (!esc_sname) {
 433                 return NT_STATUS_NO_MEMORY;
 434         }
 435
 436         DEBUG(5,
 437                   ("mysqlsam_select_by_field: getting data where %s = %s(nonescaped)\n",
 438                    field, sname));
 439
 440         tmp_sname = smb_xstrdup(sname);
 441
 442         /* Escape sname */
 443         mysql_real_escape_string(data->handle, esc_sname, tmp_sname,
 444                                                          strlen(tmp_sname));
 445
 446         SAFE_FREE(tmp_sname);
 447
 448         if (user == NULL) {
 449                 DEBUG(0, ("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n"));
 450                 SAFE_FREE(esc_sname);
 451                 return NT_STATUS_INVALID_PARAMETER;
 452         }
 453
 454         asprintf(&query,
 455                          "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'",
 456                          config_value_read(data, "logon time column",
 457                                                            CONFIG_LOGON_TIME_DEFAULT),
 458                          config_value_read(data, "logoff time column",
 459                                                            CONFIG_LOGOFF_TIME_DEFAULT),
 460                          config_value_read(data, "kickoff time column",
 461                                                            CONFIG_KICKOFF_TIME_DEFAULT),
 462                          config_value_read(data, "pass last set time column",
 463                                                            CONFIG_PASS_LAST_SET_TIME_DEFAULT),
 464                          config_value_read(data, "pass can change time column",
 465                                                            CONFIG_PASS_CAN_CHANGE_TIME_DEFAULT),
 466                          config_value_read(data, "pass must change time column",
 467                                                            CONFIG_PASS_MUST_CHANGE_TIME_DEFAULT),
 468                          config_value_read(data, "username column",
 469                                                            CONFIG_USERNAME_DEFAULT),
 470                          config_value_read(data, "domain column",
 471                                                            CONFIG_DOMAIN_DEFAULT),
 472                          config_value_read(data, "nt username column",
 473                                                            CONFIG_NT_USERNAME_DEFAULT),
 474                          config_value_read(data, "fullname column",
 475                                                            CONFIG_FULLNAME_DEFAULT),
 476                          config_value_read(data, "home dir column",
 477                                                            CONFIG_HOME_DIR_DEFAULT),
 478                          config_value_read(data, "dir drive column",
 479                                                            CONFIG_DIR_DRIVE_DEFAULT),
 480                          config_value_read(data, "logon script column",
 481                                                            CONFIG_LOGON_SCRIPT_DEFAULT),
 482                          config_value_read(data, "profile path column",
 483                                                            CONFIG_PROFILE_PATH_DEFAULT),
 484                          config_value_read(data, "acct desc column",
 485                                                            CONFIG_ACCT_DESC_DEFAULT),
 486                          config_value_read(data, "workstations column",
 487                                                            CONFIG_WORKSTATIONS_DEFAULT),
 488                          config_value_read(data, "unknown string column",
 489                                                            CONFIG_UNKNOWN_STR_DEFAULT),
 490                          config_value_read(data, "munged dial column",
 491                                                            CONFIG_MUNGED_DIAL_DEFAULT),
 492                          config_value_read(data, "uid column", CONFIG_UID_DEFAULT),
 493                          config_value_read(data, "gid column", CONFIG_GID_DEFAULT),
 494                          config_value_read(data, "user sid column",
 495                                                            CONFIG_USER_SID_DEFAULT),
 496                          config_value_read(data, "group sid column",
 497                                                            CONFIG_GROUP_SID_DEFAULT),
 498                          config_value_read(data, "lanman pass column",
 499                                                            CONFIG_LM_PW_DEFAULT),
 500                          config_value_read(data, "nt pass column",
 501                                                            CONFIG_NT_PW_DEFAULT),
 502                          config_value_read(data, "plain pass column",
 503                                                            CONFIG_PLAIN_PW_DEFAULT),
 504                          config_value_read(data, "acct ctrl column",
 505                                                            CONFIG_ACCT_CTRL_DEFAULT),
 506                          config_value_read(data, "unknown 3 column",
 507                                                            CONFIG_UNKNOWN_3_DEFAULT),
 508                          config_value_read(data, "logon divs column",
 509                                                            CONFIG_LOGON_DIVS_DEFAULT),
 510                          config_value_read(data, "hours len column",
 511                                                            CONFIG_HOURS_LEN_DEFAULT),
 512                          config_value_read(data, "unknown 5 column",
 513                                                            CONFIG_UNKNOWN_5_DEFAULT),
 514                          config_value_read(data, "unknown 6 column",
 515                                                            CONFIG_UNKNOWN_6_DEFAULT),
 516                          config_value(data, "table", CONFIG_TABLE_DEFAULT), field,
 517                          esc_sname);
 518
 519         SAFE_FREE(esc_sname);
 520
 521         DEBUG(5, ("Executing query %s\n", query));
 522
 523         mysql_ret = mysql_query(data->handle, query);
 524
 525         SAFE_FREE(query);
 526
 527         if (mysql_ret) {
 528                 DEBUG(0,
 529                         ("Error while executing MySQL query %s\n",
 530                                 mysql_error(data->handle)));
 531                 return NT_STATUS_UNSUCCESSFUL;
 532         }
 533
 534         res = mysql_store_result(data->handle);
 535         if (res == NULL) {
 536                 DEBUG(0,
 537                         ("Error storing results: %s\n", mysql_error(data->handle)));
 538                 return NT_STATUS_UNSUCCESSFUL;
 539         }
 540
 541         ret = row_to_sam_account(res, user);
 542         mysql_free_result(res);
 543
 544         return ret;
 545 }
 546
 547 /******************************************************************
 548   Lookup a name in the SAM database
 549  ******************************************************************/
 550
 551 static NTSTATUS mysqlsam_getsampwnam(struct pdb_methods *methods, SAM_ACCOUNT * user,
 552                                          const char *sname)
 553 {
 554         struct pdb_mysql_data *data;
 555
 556         SET_DATA(data, methods);
 557
 558         if (!sname) {
 559                 DEBUG(0, ("invalid name specified"));
 560                 return NT_STATUS_INVALID_PARAMETER;
 561         }
 562
 563         return mysqlsam_select_by_field(methods, user,
 564                         config_value_read(data, "username column",
 565                                 CONFIG_USERNAME_DEFAULT), sname);
 566 }
 567
 568
 569 /***************************************************************************
 570   Search by sid
 571  **************************************************************************/
 572
 573 static NTSTATUS mysqlsam_getsampwsid(struct pdb_methods *methods, SAM_ACCOUNT * user,
 574                                          const DOM_SID * sid)
 575 {
 576         struct pdb_mysql_data *data;
 577         fstring sid_str;
 578
 579         SET_DATA(data, methods);
 580
 581         sid_to_string(sid_str, sid);
 582
 583         return mysqlsam_select_by_field(methods, user,
 584                         config_value_read(data, "user sid column",
 585                                 CONFIG_USER_SID_DEFAULT), sid_str);
 586 }
 587
 588 /***************************************************************************
 589   Delete a SAM_ACCOUNT
 590  ****************************************************************************/
 591
 592 static NTSTATUS mysqlsam_delete_sam_account(struct pdb_methods *methods,
 593                                                         SAM_ACCOUNT * sam_pass)
 594 {
 595         const char *sname = pdb_get_username(sam_pass);
 596         char *esc;
 597         char *query;
 598         int ret;
 599         struct pdb_mysql_data *data;
 600         char *tmp_sname;
 601
 602         SET_DATA(data, methods);
 603
 604         if (!methods) {
 605                 DEBUG(0, ("invalid methods!\n"));
 606                 return NT_STATUS_INVALID_PARAMETER;
 607         }
 608
 609         data = (struct pdb_mysql_data *) methods->private_data;
 610         if (!data || !(data->handle)) {
 611                 DEBUG(0, ("invalid handle!\n"));
 612                 return NT_STATUS_INVALID_HANDLE;
 613         }
 614
 615         if (!sname) {
 616                 DEBUG(0, ("invalid name specified\n"));
 617                 return NT_STATUS_INVALID_PARAMETER;
 618         }
 619
 620         /* Escape sname */
 621         esc = malloc(strlen(sname) * 2 + 1);
 622         if (!esc) {
 623                 DEBUG(0, ("Can't allocate memory to store escaped name\n"));
 624                 return NT_STATUS_NO_MEMORY;
 625         }
 626
 627         tmp_sname = smb_xstrdup(sname);
 628
 629         mysql_real_escape_string(data->handle, esc, tmp_sname,
 630                                                          strlen(tmp_sname));
 631
 632         SAFE_FREE(tmp_sname);
 633
 634         asprintf(&query, "DELETE FROM %s WHERE %s = '%s'",
 635                          config_value(data, "table", CONFIG_TABLE_DEFAULT),
 636                          config_value_read(data, "username column",
 637                                                            CONFIG_USERNAME_DEFAULT), esc);
 638
 639         SAFE_FREE(esc);
 640
 641         ret = mysql_query(data->handle, query);
 642
 643         SAFE_FREE(query);
 644
 645         if (ret) {
 646                 DEBUG(0,
 647                           ("Error while executing query: %s\n",
 648                            mysql_error(data->handle)));
 649                 return NT_STATUS_UNSUCCESSFUL;
 650         }
 651
 652         DEBUG(5, ("User '%s' deleted\n", sname));
 653         return NT_STATUS_OK;
 654 }
 655
 656 static NTSTATUS mysqlsam_replace_sam_account(struct pdb_methods *methods,
 657                                                          const SAM_ACCOUNT * newpwd, char isupdate)
 658 {
 659         pstring temp;
 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("mysqlsam_replace_sam_account");
 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 (pdb_get_init_flags(newpwd, PDB_LOGONTIME) != PDB_DEFAULT) {
 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 (pdb_get_init_flags(newpwd, PDB_LOGOFFTIME) != PDB_DEFAULT) {
 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 (pdb_get_init_flags(newpwd, PDB_KICKOFFTIME) != PDB_DEFAULT) {
 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 (pdb_get_init_flags(newpwd, PDB_CANCHANGETIME) != PDB_DEFAULT) {
 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 (pdb_get_init_flags(newpwd, PDB_MUSTCHANGETIME) != PDB_DEFAULT) {
 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 last set 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 (pdb_get_init_flags(newpwd, PDB_UID) != PDB_DEFAULT) {
 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 (pdb_get_init_flags(newpwd, PDB_GID) != PDB_DEFAULT) {
 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,
 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,
 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, pdb_get_user_sid (newpwd)));
 865         } else {
 866                 query.part2[strlen(query.part2) - 1] = ')';
 867                 query.part1[strlen(query.part1) - 1] = ')';
 868                 query.part1 =
 869                         talloc_asprintf_append(query.mem_ctx, query.part1,
 870                                                                    " VALUES (%s", query.part2);
 871         }
 872
 873         DEBUG(0, ("%s\n", query.part1));
 874         /* Execute the query */
 875         if (mysql_query(data->handle, query.part1)) {
 876                 DEBUG(0,
 877                           ("Error executing %s, %s\n", query.part1,
 878                            mysql_error(data->handle)));
 879                 return NT_STATUS_INVALID_PARAMETER;
 880         }
 881         talloc_destroy(query.mem_ctx);
 882         return NT_STATUS_OK;
 883 }
 884
 885 static NTSTATUS mysqlsam_add_sam_account(struct pdb_methods *methods, SAM_ACCOUNT * newpwd)
 886 {
 887         return mysqlsam_replace_sam_account(methods, newpwd, 0);
 888 }
 889
 890 static NTSTATUS mysqlsam_update_sam_account(struct pdb_methods *methods,
 891                                                         SAM_ACCOUNT * newpwd)
 892 {
 893         return mysqlsam_replace_sam_account(methods, newpwd, 1);
 894 }
 895
 896 static NTSTATUS mysqlsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
 897                                 DOM_SID sid, BOOL with_priv)
 898 {
 899         return get_group_map_from_sid(sid, map, with_priv) ?
 900                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 901 }
 902
 903 static NTSTATUS mysqlsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
 904                                 gid_t gid, BOOL with_priv)
 905 {
 906         return get_group_map_from_gid(gid, map, with_priv) ?
 907                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 908 }
 909
 910 static NTSTATUS mysqlsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
 911                                 char *name, BOOL with_priv)
 912 {
 913         return get_group_map_from_ntname(name, map, with_priv) ?
 914                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 915 }
 916
 917 static NTSTATUS mysqlsam_add_group_mapping_entry(struct pdb_methods *methods,
 918                                                GROUP_MAP *map)
 919 {
 920         return add_mapping_entry(map, TDB_INSERT) ?
 921                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 922 }
 923
 924 static NTSTATUS mysqlsam_update_group_mapping_entry(struct pdb_methods *methods,
 925                                                   GROUP_MAP *map)
 926 {
 927         return add_mapping_entry(map, TDB_REPLACE) ?
 928                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 929 }
 930
 931 static NTSTATUS mysqlsam_delete_group_mapping_entry(struct pdb_methods *methods,
 932                                                   DOM_SID sid)
 933 {
 934         return group_map_remove(sid) ?
 935                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 936 }
 937
 938 static NTSTATUS mysqlsam_enum_group_mapping(struct pdb_methods *methods,
 939                                           enum SID_NAME_USE sid_name_use,
 940                                           GROUP_MAP **rmap, int *num_entries,
 941                                           BOOL unix_only, BOOL with_priv)
 942 {
 943         return enum_group_mapping(sid_name_use, rmap, num_entries, unix_only,
 944                                   with_priv) ?
 945                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 946 }
 947
 948
 949 static NTSTATUS mysqlsam_init(struct pdb_context * pdb_context, struct pdb_methods ** pdb_method,
 950                  const char *location)
 951 {
 952         NTSTATUS nt_status;
 953         struct pdb_mysql_data *data;
 954
 955         mysqlsam_debug_level = debug_add_class("mysqlsam");
 956         if (mysqlsam_debug_level == -1) {
 957                 mysqlsam_debug_level = DBGC_ALL;
 958                 DEBUG(0,
 959                           ("mysqlsam: Couldn't register custom debugging class!\n"));
 960         }
 961
 962         if (!pdb_context) {
 963                 DEBUG(0, ("invalid pdb_methods specified\n"));
 964                 return NT_STATUS_UNSUCCESSFUL;
 965         }
 966
 967         if (!NT_STATUS_IS_OK
 968                 (nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
 969                 return nt_status;
 970         }
 971
 972         (*pdb_method)->name = "mysqlsam";
 973
 974         (*pdb_method)->setsampwent = mysqlsam_setsampwent;
 975         (*pdb_method)->endsampwent = mysqlsam_endsampwent;
 976         (*pdb_method)->getsampwent = mysqlsam_getsampwent;
 977         (*pdb_method)->getsampwnam = mysqlsam_getsampwnam;
 978         (*pdb_method)->getsampwsid = mysqlsam_getsampwsid;
 979         (*pdb_method)->add_sam_account = mysqlsam_add_sam_account;
 980         (*pdb_method)->update_sam_account = mysqlsam_update_sam_account;
 981         (*pdb_method)->delete_sam_account = mysqlsam_delete_sam_account;
 982         (*pdb_method)->getgrsid = mysqlsam_getgrsid;
 983         (*pdb_method)->getgrgid = mysqlsam_getgrgid;
 984         (*pdb_method)->getgrnam = mysqlsam_getgrnam;
 985         (*pdb_method)->add_group_mapping_entry = mysqlsam_add_group_mapping_entry;
 986         (*pdb_method)->update_group_mapping_entry = mysqlsam_update_group_mapping_entry;
 987         (*pdb_method)->delete_group_mapping_entry = mysqlsam_delete_group_mapping_entry;
 988         (*pdb_method)->enum_group_mapping = mysqlsam_enum_group_mapping;
 989
 990         data = talloc(pdb_context->mem_ctx, sizeof(struct pdb_mysql_data));
 991         (*pdb_method)->private_data = data;
 992         data->handle = NULL;
 993         data->pwent = NULL;
 994
 995         if (!location) {
 996                 DEBUG(0, ("No identifier specified. See README for details\n"));
 997                 return NT_STATUS_INVALID_PARAMETER;
 998         }
 999
1000         data->location = smb_xstrdup(location);
1001
1002         DEBUG(1,
1003                   ("Connecting to database server, host: %s, user: %s, password: %s, database: %s, port: %ld\n",
1004                    config_value(data, "mysql host", CONFIG_HOST_DEFAULT),
1005                    config_value(data, "mysql user", CONFIG_USER_DEFAULT),
1006                    config_value(data, "mysql password", CONFIG_PASS_DEFAULT),
1007                    config_value(data, "mysql database", CONFIG_DB_DEFAULT),
1008                    xatol(config_value(data, "mysql port", CONFIG_PORT_DEFAULT))));
1009
1010         /* Do the mysql initialization */
1011         data->handle = mysql_init(NULL);
1012         if (!data->handle) {
1013                 DEBUG(0, ("Failed to connect to server\n"));
1014                 return NT_STATUS_UNSUCCESSFUL;
1015         }
1016         /* Process correct entry in $HOME/.my.conf */
1017         if (!mysql_real_connect(data->handle,
1018                         config_value(data, "mysql host", CONFIG_HOST_DEFAULT),
1019                         config_value(data, "mysql user", CONFIG_USER_DEFAULT),
1020                         config_value(data, "mysql password", CONFIG_PASS_DEFAULT),
1021                         config_value(data, "mysql database", CONFIG_DB_DEFAULT),
1022                         xatol(config_value (data, "mysql port", CONFIG_PORT_DEFAULT)),
1023                         NULL, 0)) {
1024                 DEBUG(0,
1025                           ("Failed to connect to mysql database: error: %s\n",
1026                            mysql_error(data->handle)));
1027                 return NT_STATUS_UNSUCCESSFUL;
1028         }
1029
1030         DEBUG(5, ("Connected to mysql db\n"));
1031
1032         return NT_STATUS_OK;
1033 }
1034
1035 int init_module(void);
1036
1037 int init_module()
1038 {
1039         if(smb_register_passdb("mysql", mysqlsam_init, PASSDB_INTERFACE_VERSION))
1040                 return 0;
1041
1042         return 1;
1043 }