source3/utils/net_groupmap.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *  Copyright (C) Andrew Tridgell              1992-2000,
   5  *  Copyright (C) Jean François Micouleau      1998-2001.
   6  *  Copyright (C) Gerald Carter                2003.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23
  24 #include "includes.h"
  25 #include "../utils/net.h"
  26
  27
  28 /*********************************************************
  29  utility function to parse an integer parameter from
  30  "parameter = value"
  31 **********************************************************/
  32 static uint32 get_int_param( const char* param )
  33 {
  34         char *p;
  35
  36         p = strchr( param, '=' );
  37         if ( !p )
  38                 return 0;
  39
  40         return atoi(p+1);
  41 }
  42
  43 /*********************************************************
  44  utility function to parse an integer parameter from
  45  "parameter = value"
  46 **********************************************************/
  47 static char* get_string_param( const char* param )
  48 {
  49         char *p;
  50
  51         p = strchr( param, '=' );
  52         if ( !p )
  53                 return NULL;
  54
  55         return (p+1);
  56 }
  57
  58 /*********************************************************
  59  Figure out if the input was an NT group or a SID string.
  60  Return the SID.
  61 **********************************************************/
  62 static BOOL get_sid_from_input(DOM_SID *sid, char *input)
  63 {
  64         GROUP_MAP map;
  65
  66         if (StrnCaseCmp( input, "S-", 2)) {
  67                 /* Perhaps its the NT group name? */
  68                 if (!pdb_getgrnam(&map, input)) {
  69                         printf("NT Group %s doesn't exist in mapping DB\n", input);
  70                         return False;
  71                 } else {
  72                         *sid = map.sid;
  73                 }
  74         } else {
  75                 if (!string_to_sid(sid, input)) {
  76                         printf("converting sid %s from a string failed!\n", input);
  77                         return False;
  78                 }
  79         }
  80         return True;
  81 }
  82
  83 /*********************************************************
  84  Dump a GROUP_MAP entry to stdout (long or short listing)
  85 **********************************************************/
  86
  87 static void print_map_entry ( GROUP_MAP map, BOOL long_list )
  88 {
  89         fstring string_sid;
  90         fstring group_type;
  91
  92         decode_sid_name_use(group_type, map.sid_name_use);
  93         sid_to_string(string_sid, &map.sid);
  94
  95         if (!long_list)
  96                 d_printf("%s (%s) -> %s\n", map.nt_name, string_sid, gidtoname(map.gid));
  97         else {
  98                 d_printf("%s\n", map.nt_name);
  99                 d_printf("\tSID       : %s\n", string_sid);
 100                 d_printf("\tUnix group: %s\n", gidtoname(map.gid));
 101                 d_printf("\tGroup type: %s\n", group_type);
 102                 d_printf("\tComment   : %s\n", map.comment);
 103         }
 104
 105 }
 106 /*********************************************************
 107  List the groups.
 108 **********************************************************/
 109 static int net_groupmap_list(int argc, const char **argv)
 110 {
 111         int entries;
 112         BOOL long_list = False;
 113         int i;
 114         fstring ntgroup = "";
 115         fstring sid_string = "";
 116
 117         /* get the options */
 118         for ( i=0; i<argc; i++ ) {
 119                 if ( !StrCaseCmp(argv[i], "verbose")) {
 120                         long_list = True;
 121                 }
 122                 else if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 123                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 124                         if ( !ntgroup[0] ) {
 125                                 d_printf("must supply a name\n");
 126                                 return -1;
 127                         }
 128                 }
 129                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 130                         fstrcpy( sid_string, get_string_param( argv[i] ) );
 131                         if ( !sid_string[0] ) {
 132                                 d_printf("must supply a SID\n");
 133                                 return -1;
 134                         }
 135                 }
 136                 else {
 137                         d_printf("Bad option: %s\n", argv[i]);
 138                         return -1;
 139                 }
 140         }
 141
 142         /* list a single group is given a name */
 143         if ( ntgroup[0] || sid_string[0] ) {
 144                 DOM_SID sid;
 145                 GROUP_MAP map;
 146
 147                 if ( sid_string[0] )
 148                         fstrcpy( ntgroup, sid_string);
 149
 150                 if (!get_sid_from_input(&sid, ntgroup)) {
 151                         return -1;
 152                 }
 153
 154                 /* Get the current mapping from the database */
 155                 if(!pdb_getgrsid(&map, sid)) {
 156                         d_printf("Failure to local group SID in the database\n");
 157                         return -1;
 158                 }
 159
 160                 print_map_entry( map, long_list );
 161         }
 162         else {
 163                 GROUP_MAP *map=NULL;
 164                 /* enumerate all group mappings */
 165                 if (!pdb_enum_group_mapping(SID_NAME_UNKNOWN, &map, &entries, ENUM_ALL_MAPPED))
 166                         return -1;
 167
 168                 for (i=0; i<entries; i++) {
 169                         print_map_entry( map[i], long_list );
 170                 }
 171         }
 172
 173         return 0;
 174 }
 175
 176 /*********************************************************
 177  Add a new group mapping entry
 178 **********************************************************/
 179
 180 static int net_groupmap_add(int argc, const char **argv)
 181 {
 182         DOM_SID sid;
 183         fstring ntgroup = "";
 184         fstring unixgrp = "";
 185         fstring string_sid = "";
 186         fstring type = "";
 187         fstring ntcomment = "";
 188         enum SID_NAME_USE sid_type = SID_NAME_DOM_GRP;
 189         uint32 rid = 0;
 190         gid_t gid;
 191         int i;
 192
 193         /* get the options */
 194         for ( i=0; i<argc; i++ ) {
 195                 if ( !StrnCaseCmp(argv[i], "rid", strlen("rid")) ) {
 196                         rid = get_int_param(argv[i]);
 197                         if ( rid < DOMAIN_GROUP_RID_ADMINS ) {
 198                                 d_printf("RID must be greater than %d\n", (uint32)DOMAIN_GROUP_RID_ADMINS-1);
 199                                 return -1;
 200                         }
 201                 }
 202                 else if ( !StrnCaseCmp(argv[i], "unixgroup", strlen("unixgroup")) ) {
 203                         fstrcpy( unixgrp, get_string_param( argv[i] ) );
 204                         if ( !unixgrp[0] ) {
 205                                 d_printf("must supply a name\n");
 206                                 return -1;
 207                         }
 208                 }
 209                 else if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 210                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 211                         if ( !ntgroup[0] ) {
 212                                 d_printf("must supply a name\n");
 213                                 return -1;
 214                         }
 215                 }
 216                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 217                         fstrcpy( string_sid, get_string_param( argv[i] ) );
 218                         if ( !string_sid[0] ) {
 219                                 d_printf("must supply a SID\n");
 220                                 return -1;
 221                         }
 222                 }
 223                 else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) {
 224                         fstrcpy( ntcomment, get_string_param( argv[i] ) );
 225                         if ( !ntcomment[0] ) {
 226                                 d_printf("must supply a comment string\n");
 227                                 return -1;
 228                         }
 229                 }
 230                 else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) )  {
 231                         fstrcpy( type, get_string_param( argv[i] ) );
 232                         switch ( type[0] ) {
 233                                 case 'b':
 234                                 case 'B':
 235                                         sid_type = SID_NAME_WKN_GRP;
 236                                         break;
 237                                 case 'd':
 238                                 case 'D':
 239                                         sid_type = SID_NAME_DOM_GRP;
 240                                         break;
 241                                 case 'l':
 242                                 case 'L':
 243                                         sid_type = SID_NAME_ALIAS;
 244                                         break;
 245                         }
 246                 }
 247                 else {
 248                         d_printf("Bad option: %s\n", argv[i]);
 249                         return -1;
 250                 }
 251         }
 252
 253         if ( !unixgrp[0] || (!rid && !string_sid[0]) ) {
 254                 d_printf("Usage: net groupmap add {rid=<int>|sid=<string>} unixgroup=<string> [type=<domain|local|builtin>] [ntgroup=<string>] [comment=<string>]\n");
 255                 return -1;
 256         }
 257
 258         /* append the rid to our own domain/machine SID if we don't have a full SID */
 259         if ( !string_sid[0] ) {
 260                 sid_copy(&sid, get_global_sam_sid());
 261                 sid_append_rid(&sid, rid);
 262                 sid_to_string(string_sid, &sid);
 263         }
 264
 265         if (ntcomment[0])
 266                 fstrcpy(ntcomment, "Local Unix group");
 267
 268         if ( (gid = nametogid(unixgrp)) == (gid_t)-1 ) {
 269                 d_printf("Can't lookup UNIX group %s\n", ntgroup);
 270                 return -1;
 271         }
 272
 273         if ( !ntgroup[0] )
 274                 fstrcpy( ntgroup, unixgrp );
 275
 276
 277         if (!add_initial_entry(gid, string_sid, sid_type, ntgroup, ntcomment)) {
 278                 d_printf("adding entry for group %s failed!\n", ntgroup);
 279                 return -1;
 280         }
 281
 282         d_printf("Successully added group %s to the mapping db\n", ntgroup);
 283         return 0;
 284 }
 285
 286 static int net_groupmap_modify(int argc, const char **argv)
 287 {
 288         DOM_SID sid;
 289         GROUP_MAP map;
 290         fstring ntcomment = "";
 291         fstring type = "";
 292         fstring ntgroup = "";
 293         fstring unixgrp = "";
 294         fstring sid_string = "";
 295         enum SID_NAME_USE sid_type = SID_NAME_UNKNOWN;
 296         int i;
 297         gid_t gid;
 298
 299         /* get the options */
 300         for ( i=0; i<argc; i++ ) {
 301                 if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 302                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 303                         if ( !ntgroup[0] ) {
 304                                 d_printf("must supply a name\n");
 305                                 return -1;
 306                         }
 307                 }
 308                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 309                         fstrcpy( sid_string, get_string_param( argv[i] ) );
 310                         if ( !sid_string[0] ) {
 311                                 d_printf("must supply a name\n");
 312                                 return -1;
 313                         }
 314                 }
 315                 else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) {
 316                         fstrcpy( ntcomment, get_string_param( argv[i] ) );
 317                         if ( !ntcomment[0] ) {
 318                                 d_printf("must supply a comment string\n");
 319                                 return -1;
 320                         }
 321                 }
 322                 else if ( !StrnCaseCmp(argv[i], "unixgroup", strlen("unixgroup")) ) {
 323                         fstrcpy( unixgrp, get_string_param( argv[i] ) );
 324                         if ( !unixgrp[0] ) {
 325                                 d_printf("must supply a group name\n");
 326                                 return -1;
 327                         }
 328                 }
 329                 else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) )  {
 330                         fstrcpy( type, get_string_param( argv[i] ) );
 331                         switch ( type[0] ) {
 332                                 case 'd':
 333                                 case 'D':
 334                                         sid_type = SID_NAME_DOM_GRP;
 335                                         break;
 336                                 case 'l':
 337                                 case 'L':
 338                                         sid_type = SID_NAME_ALIAS;
 339                                         break;
 340                         }
 341                 }
 342                 else {
 343                         d_printf("Bad option: %s\n", argv[i]);
 344                         return -1;
 345                 }
 346         }
 347
 348         if ( !ntgroup[0] && !sid_string[0] ) {
 349                 d_printf("Usage: net groupmap modify {ntgroup=<string>|sid=<SID>} [comment=<string>] [unixgroup=<string>] [type=<domain|local>]\n");
 350                 return -1;
 351         }
 352
 353         /* give preference to the SID; if both the ntgroup name and SID
 354            are defined, use the SID and assume that the group name could be a
 355            new name */
 356
 357         if ( sid_string[0] ) {
 358                 if (!get_sid_from_input(&sid, sid_string)) {
 359                         return -1;
 360                 }
 361         }
 362         else {
 363                 if (!get_sid_from_input(&sid, ntgroup)) {
 364                         return -1;
 365                 }
 366         }
 367
 368         /* Get the current mapping from the database */
 369         if(!pdb_getgrsid(&map, sid)) {
 370                 d_printf("Failure to local group SID in the database\n");
 371                 return -1;
 372         }
 373
 374         /*
 375          * Allow changing of group type only between domain and local
 376          * We disallow changing Builtin groups !!! (SID problem)
 377          */
 378         if (sid_type != SID_NAME_UNKNOWN) {
 379                 if (map.sid_name_use == SID_NAME_WKN_GRP) {
 380                         d_printf("You can only change between domain and local groups.\n");
 381                         return -1;
 382                 }
 383
 384                 map.sid_name_use=sid_type;
 385         }
 386
 387         /* Change comment if new one */
 388         if ( ntcomment[0] )
 389                 fstrcpy( map.comment, ntcomment );
 390
 391         if ( ntgroup[0] )
 392                 fstrcpy( map.nt_name, ntgroup );
 393
 394         if ( unixgrp[0] ) {
 395                 gid = nametogid( unixgrp );
 396                 if ( gid == -1 ) {
 397                         d_printf("Unable to lookup UNIX group %s.  Make sure the group exists.\n",
 398                                 unixgrp);
 399                         return -1;
 400                 }
 401
 402                 map.gid = gid;
 403         }
 404
 405         if ( !pdb_update_group_mapping_entry(&map) ) {
 406                 d_printf("Could not update group database\n");
 407                 return -1;
 408         }
 409
 410         d_printf("Updated mapping entry for %s\n", ntgroup);
 411
 412         return 0;
 413 }
 414
 415 static int net_groupmap_delete(int argc, const char **argv)
 416 {
 417         DOM_SID sid;
 418         fstring ntgroup = "";
 419         fstring sid_string = "";
 420         int i;
 421
 422         /* get the options */
 423         for ( i=0; i<argc; i++ ) {
 424                 if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 425                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 426                         if ( !ntgroup[0] ) {
 427                                 d_printf("must supply a name\n");
 428                                 return -1;
 429                         }
 430                 }
 431                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 432                         fstrcpy( sid_string, get_string_param( argv[i] ) );
 433                         if ( !sid_string[0] ) {
 434                                 d_printf("must supply a SID\n");
 435                                 return -1;
 436                         }
 437                 }
 438                 else {
 439                         d_printf("Bad option: %s\n", argv[i]);
 440                         return -1;
 441                 }
 442         }
 443
 444         if ( !ntgroup[0] && !sid_string[0]) {
 445                 d_printf("Usage: net groupmap delete {ntgroup=<string>|sid=<SID>}\n");
 446                 return -1;
 447         }
 448
 449         /* give preference to the SID if we have that */
 450
 451         if ( sid_string[0] )
 452                 fstrcpy( ntgroup, sid_string );
 453
 454         if ( !get_sid_from_input(&sid, ntgroup) ) {
 455                 d_printf("Unable to resolve group %s to a SID\n", ntgroup);
 456                 return -1;
 457         }
 458
 459         if ( !pdb_delete_group_mapping_entry(sid) ) {
 460                 printf("Failed to removing group %s from the mapping db!\n", ntgroup);
 461                 return -1;
 462         }
 463
 464         d_printf("Sucessfully removed %s from the mapping db\n", ntgroup);
 465
 466         return 0;
 467 }
 468
 469 int net_help_groupmap(int argc, const char **argv)
 470 {
 471         d_printf("net groupmap add"\
 472                 "\n  Create a new group mapping\n");
 473         d_printf("net groupmap modify"\
 474                 "\n  Update a group mapping\n");
 475         d_printf("net groupmap delete"\
 476                 "\n  Remove a group mapping\n");
 477         d_printf("net groupmap list"\
 478                 "\n  List current group map\n");
 479
 480         return -1;
 481 }
 482
 483
 484 /***********************************************************
 485  migrated functionality from smbgroupedit
 486  **********************************************************/
 487 int net_groupmap(int argc, const char **argv)
 488 {
 489         /* we shouldn't have silly checks like this */
 490         if (getuid() != 0) {
 491                 d_printf("You must be root to edit group mappings.\nExiting...\n");
 492                 return -1;
 493         }
 494
 495         struct functable func[] = {
 496                 {"add", net_groupmap_add},
 497                 {"modify", net_groupmap_modify},
 498                 {"delete", net_groupmap_delete},
 499                 {"list", net_groupmap_list},
 500                 {"help", net_help_groupmap},
 501                 {NULL, NULL}
 502         };
 503
 504         return net_run_function(argc, argv, func, net_help_groupmap);
 505         if ( 0 == argc )
 506                 return net_help_groupmap( argc, argv );
 507
 508         return net_help_groupmap( argc, argv );
 509 }
 510