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                 SAFE_FREE(map);
 173         }
 174
 175         return 0;
 176 }
 177
 178 /*********************************************************
 179  Add a new group mapping entry
 180 **********************************************************/
 181
 182 static int net_groupmap_add(int argc, const char **argv)
 183 {
 184         DOM_SID sid;
 185         fstring ntgroup = "";
 186         fstring unixgrp = "";
 187         fstring string_sid = "";
 188         fstring type = "";
 189         fstring ntcomment = "";
 190         enum SID_NAME_USE sid_type = SID_NAME_DOM_GRP;
 191         uint32 rid = 0;
 192         gid_t gid;
 193         int i;
 194
 195         /* get the options */
 196         for ( i=0; i<argc; i++ ) {
 197                 if ( !StrnCaseCmp(argv[i], "rid", strlen("rid")) ) {
 198                         rid = get_int_param(argv[i]);
 199                         if ( rid < DOMAIN_GROUP_RID_ADMINS ) {
 200                                 d_printf("RID must be greater than %d\n", (uint32)DOMAIN_GROUP_RID_ADMINS-1);
 201                                 return -1;
 202                         }
 203                 }
 204                 else if ( !StrnCaseCmp(argv[i], "unixgroup", strlen("unixgroup")) ) {
 205                         fstrcpy( unixgrp, get_string_param( argv[i] ) );
 206                         if ( !unixgrp[0] ) {
 207                                 d_printf("must supply a name\n");
 208                                 return -1;
 209                         }
 210                 }
 211                 else if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 212                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 213                         if ( !ntgroup[0] ) {
 214                                 d_printf("must supply a name\n");
 215                                 return -1;
 216                         }
 217                 }
 218                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 219                         fstrcpy( string_sid, get_string_param( argv[i] ) );
 220                         if ( !string_sid[0] ) {
 221                                 d_printf("must supply a SID\n");
 222                                 return -1;
 223                         }
 224                 }
 225                 else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) {
 226                         fstrcpy( ntcomment, get_string_param( argv[i] ) );
 227                         if ( !ntcomment[0] ) {
 228                                 d_printf("must supply a comment string\n");
 229                                 return -1;
 230                         }
 231                 }
 232                 else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) )  {
 233                         fstrcpy( type, get_string_param( argv[i] ) );
 234                         switch ( type[0] ) {
 235                                 case 'b':
 236                                 case 'B':
 237                                         sid_type = SID_NAME_WKN_GRP;
 238                                         break;
 239                                 case 'd':
 240                                 case 'D':
 241                                         sid_type = SID_NAME_DOM_GRP;
 242                                         break;
 243                                 case 'l':
 244                                 case 'L':
 245                                         sid_type = SID_NAME_ALIAS;
 246                                         break;
 247                         }
 248                 }
 249                 else {
 250                         d_printf("Bad option: %s\n", argv[i]);
 251                         return -1;
 252                 }
 253         }
 254
 255         if ( !unixgrp[0] || (!rid && !string_sid[0]) ) {
 256                 d_printf("Usage: net groupmap add {rid=<int>|sid=<string>} unixgroup=<string> [type=<domain|local|builtin>] [ntgroup=<string>] [comment=<string>]\n");
 257                 return -1;
 258         }
 259
 260         /* append the rid to our own domain/machine SID if we don't have a full SID */
 261         if ( !string_sid[0] ) {
 262                 sid_copy(&sid, get_global_sam_sid());
 263                 sid_append_rid(&sid, rid);
 264                 sid_to_string(string_sid, &sid);
 265         }
 266
 267         if (ntcomment[0])
 268                 fstrcpy(ntcomment, "Local Unix group");
 269
 270         if ( (gid = nametogid(unixgrp)) == (gid_t)-1 ) {
 271                 d_printf("Can't lookup UNIX group %s\n", ntgroup);
 272                 return -1;
 273         }
 274
 275         if ( !ntgroup[0] )
 276                 fstrcpy( ntgroup, unixgrp );
 277
 278
 279         if (!add_initial_entry(gid, string_sid, sid_type, ntgroup, ntcomment)) {
 280                 d_printf("adding entry for group %s failed!\n", ntgroup);
 281                 return -1;
 282         }
 283
 284         d_printf("Successully added group %s to the mapping db\n", ntgroup);
 285         return 0;
 286 }
 287
 288 static int net_groupmap_modify(int argc, const char **argv)
 289 {
 290         DOM_SID sid;
 291         GROUP_MAP map;
 292         fstring ntcomment = "";
 293         fstring type = "";
 294         fstring ntgroup = "";
 295         fstring unixgrp = "";
 296         fstring sid_string = "";
 297         enum SID_NAME_USE sid_type = SID_NAME_UNKNOWN;
 298         int i;
 299         gid_t gid;
 300
 301         /* get the options */
 302         for ( i=0; i<argc; i++ ) {
 303                 if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 304                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 305                         if ( !ntgroup[0] ) {
 306                                 d_printf("must supply a name\n");
 307                                 return -1;
 308                         }
 309                 }
 310                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 311                         fstrcpy( sid_string, get_string_param( argv[i] ) );
 312                         if ( !sid_string[0] ) {
 313                                 d_printf("must supply a name\n");
 314                                 return -1;
 315                         }
 316                 }
 317                 else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) {
 318                         fstrcpy( ntcomment, get_string_param( argv[i] ) );
 319                         if ( !ntcomment[0] ) {
 320                                 d_printf("must supply a comment string\n");
 321                                 return -1;
 322                         }
 323                 }
 324                 else if ( !StrnCaseCmp(argv[i], "unixgroup", strlen("unixgroup")) ) {
 325                         fstrcpy( unixgrp, get_string_param( argv[i] ) );
 326                         if ( !unixgrp[0] ) {
 327                                 d_printf("must supply a group name\n");
 328                                 return -1;
 329                         }
 330                 }
 331                 else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) )  {
 332                         fstrcpy( type, get_string_param( argv[i] ) );
 333                         switch ( type[0] ) {
 334                                 case 'd':
 335                                 case 'D':
 336                                         sid_type = SID_NAME_DOM_GRP;
 337                                         break;
 338                                 case 'l':
 339                                 case 'L':
 340                                         sid_type = SID_NAME_ALIAS;
 341                                         break;
 342                         }
 343                 }
 344                 else {
 345                         d_printf("Bad option: %s\n", argv[i]);
 346                         return -1;
 347                 }
 348         }
 349
 350         if ( !ntgroup[0] && !sid_string[0] ) {
 351                 d_printf("Usage: net groupmap modify {ntgroup=<string>|sid=<SID>} [comment=<string>] [unixgroup=<string>] [type=<domain|local>]\n");
 352                 return -1;
 353         }
 354
 355         /* give preference to the SID; if both the ntgroup name and SID
 356            are defined, use the SID and assume that the group name could be a
 357            new name */
 358
 359         if ( sid_string[0] ) {
 360                 if (!get_sid_from_input(&sid, sid_string)) {
 361                         return -1;
 362                 }
 363         }
 364         else {
 365                 if (!get_sid_from_input(&sid, ntgroup)) {
 366                         return -1;
 367                 }
 368         }
 369
 370         /* Get the current mapping from the database */
 371         if(!pdb_getgrsid(&map, sid)) {
 372                 d_printf("Failure to local group SID in the database\n");
 373                 return -1;
 374         }
 375
 376         /*
 377          * Allow changing of group type only between domain and local
 378          * We disallow changing Builtin groups !!! (SID problem)
 379          */
 380         if (sid_type != SID_NAME_UNKNOWN) {
 381                 if (map.sid_name_use == SID_NAME_WKN_GRP) {
 382                         d_printf("You can only change between domain and local groups.\n");
 383                         return -1;
 384                 }
 385
 386                 map.sid_name_use=sid_type;
 387         }
 388
 389         /* Change comment if new one */
 390         if ( ntcomment[0] )
 391                 fstrcpy( map.comment, ntcomment );
 392
 393         if ( ntgroup[0] )
 394                 fstrcpy( map.nt_name, ntgroup );
 395
 396         if ( unixgrp[0] ) {
 397                 gid = nametogid( unixgrp );
 398                 if ( gid == -1 ) {
 399                         d_printf("Unable to lookup UNIX group %s.  Make sure the group exists.\n",
 400                                 unixgrp);
 401                         return -1;
 402                 }
 403
 404                 map.gid = gid;
 405         }
 406
 407         if ( !pdb_update_group_mapping_entry(&map) ) {
 408                 d_printf("Could not update group database\n");
 409                 return -1;
 410         }
 411
 412         d_printf("Updated mapping entry for %s\n", ntgroup);
 413
 414         return 0;
 415 }
 416
 417 static int net_groupmap_delete(int argc, const char **argv)
 418 {
 419         DOM_SID sid;
 420         fstring ntgroup = "";
 421         fstring sid_string = "";
 422         int i;
 423
 424         /* get the options */
 425         for ( i=0; i<argc; i++ ) {
 426                 if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 427                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 428                         if ( !ntgroup[0] ) {
 429                                 d_printf("must supply a name\n");
 430                                 return -1;
 431                         }
 432                 }
 433                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 434                         fstrcpy( sid_string, get_string_param( argv[i] ) );
 435                         if ( !sid_string[0] ) {
 436                                 d_printf("must supply a SID\n");
 437                                 return -1;
 438                         }
 439                 }
 440                 else {
 441                         d_printf("Bad option: %s\n", argv[i]);
 442                         return -1;
 443                 }
 444         }
 445
 446         if ( !ntgroup[0] && !sid_string[0]) {
 447                 d_printf("Usage: net groupmap delete {ntgroup=<string>|sid=<SID>}\n");
 448                 return -1;
 449         }
 450
 451         /* give preference to the SID if we have that */
 452
 453         if ( sid_string[0] )
 454                 fstrcpy( ntgroup, sid_string );
 455
 456         if ( !get_sid_from_input(&sid, ntgroup) ) {
 457                 d_printf("Unable to resolve group %s to a SID\n", ntgroup);
 458                 return -1;
 459         }
 460
 461         if ( !pdb_delete_group_mapping_entry(sid) ) {
 462                 printf("Failed to removing group %s from the mapping db!\n", ntgroup);
 463                 return -1;
 464         }
 465
 466         d_printf("Sucessfully removed %s from the mapping db\n", ntgroup);
 467
 468         return 0;
 469 }
 470
 471 int net_help_groupmap(int argc, const char **argv)
 472 {
 473         d_printf("net groupmap add"\
 474                 "\n  Create a new group mapping\n");
 475         d_printf("net groupmap modify"\
 476                 "\n  Update a group mapping\n");
 477         d_printf("net groupmap delete"\
 478                 "\n  Remove a group mapping\n");
 479         d_printf("net groupmap list"\
 480                 "\n  List current group map\n");
 481
 482         return -1;
 483 }
 484
 485
 486 /***********************************************************
 487  migrated functionality from smbgroupedit
 488  **********************************************************/
 489 int net_groupmap(int argc, const char **argv)
 490 {
 491         struct functable func[] = {
 492                 {"add", net_groupmap_add},
 493                 {"modify", net_groupmap_modify},
 494                 {"delete", net_groupmap_delete},
 495                 {"list", net_groupmap_list},
 496                 {"help", net_help_groupmap},
 497                 {NULL, NULL}
 498         };
 499
 500         /* we shouldn't have silly checks like this */
 501         if (getuid() != 0) {
 502                 d_printf("You must be root to edit group mappings.\nExiting...\n");
 503                 return -1;
 504         }
 505
 506         return net_run_function(argc, argv, func, net_help_groupmap);
 507         if ( 0 == argc )
 508                 return net_help_groupmap( argc, argv );
 509
 510         return net_help_groupmap( argc, argv );
 511 }
 512