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, MAPPING_WITHOUT_PRIV)) {
  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         fstring priv_text;
  92
  93         decode_sid_name_use(group_type, map.sid_name_use);
  94         sid_to_string(string_sid, &map.sid);
  95         convert_priv_to_text(&(map.priv_set), priv_text);
  96
  97         if (!long_list)
  98                 d_printf("%s (%s) -> %s\n", map.nt_name, string_sid, gidtoname(map.gid));
  99         else {
 100                 d_printf("%s\n", map.nt_name);
 101                 d_printf("\tSID       : %s\n", string_sid);
 102                 d_printf("\tUnix group: %s\n", gidtoname(map.gid));
 103                 d_printf("\tGroup type: %s\n", group_type);
 104                 d_printf("\tComment   : %s\n", map.comment);
 105                 d_printf("\tPrivilege : %s\n\n", priv_text);
 106         }
 107
 108 }
 109 /*********************************************************
 110  List the groups.
 111 **********************************************************/
 112 int net_groupmap_list(int argc, const char **argv)
 113 {
 114         int entries;
 115         BOOL long_list = False;
 116         int i;
 117         fstring ntgroup = "";
 118         fstring sid_string = "";
 119
 120         /* get the options */
 121         for ( i=0; i<argc; i++ ) {
 122                 if ( !StrCaseCmp(argv[i], "verbose")) {
 123                         long_list = True;
 124                 }
 125                 else if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 126                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 127                         if ( !ntgroup[0] ) {
 128                                 d_printf("must supply a name\n");
 129                                 return -1;
 130                         }
 131                 }
 132                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 133                         fstrcpy( sid_string, get_string_param( argv[i] ) );
 134                         if ( !sid_string[0] ) {
 135                                 d_printf("must supply a SID\n");
 136                                 return -1;
 137                         }
 138                 }
 139                 else {
 140                         d_printf("Bad option: %s\n", argv[i]);
 141                         return -1;
 142                 }
 143         }
 144
 145         /* list a single group is given a name */
 146         if ( ntgroup[0] || sid_string[0] ) {
 147                 DOM_SID sid;
 148                 GROUP_MAP map;
 149
 150                 if ( sid_string[0] )
 151                         fstrcpy( ntgroup, sid_string);
 152
 153                 if (!get_sid_from_input(&sid, ntgroup)) {
 154                         return -1;
 155                 }
 156
 157                 /* Get the current mapping from the database */
 158                 if(!pdb_getgrsid(&map, sid, MAPPING_WITH_PRIV)) {
 159                         d_printf("Failure to local group SID in the database\n");
 160                         return -1;
 161                 }
 162
 163                 print_map_entry( map, long_list );
 164                 free_privilege(&(map.priv_set));
 165         }
 166         else {
 167                 GROUP_MAP *map=NULL;
 168                 /* enumerate all group mappings */
 169                 if ( !pdb_enum_group_mapping(SID_NAME_UNKNOWN, &map, &entries, ENUM_ALL_MAPPED, MAPPING_WITH_PRIV) )
 170                         return -1;
 171
 172                 for (i=0; i<entries; i++) {
 173                         print_map_entry( map[i], long_list );
 174                         free_privilege(&(map[i].priv_set));
 175                 }
 176         }
 177
 178         return 0;
 179 }
 180
 181 /*********************************************************
 182  Add a new group mapping entry
 183 **********************************************************/
 184
 185 int net_groupmap_add(int argc, const char **argv)
 186 {
 187         PRIVILEGE_SET se_priv;
 188         DOM_SID sid;
 189         fstring ntgroup = "";
 190         fstring unixgrp = "";
 191         fstring string_sid = "";
 192         fstring type = "";
 193         fstring ntcomment = "";
 194         enum SID_NAME_USE sid_type = SID_NAME_DOM_GRP;
 195         uint32 rid = 0;
 196         gid_t gid;
 197         int i;
 198
 199         /* get the options */
 200         for ( i=0; i<argc; i++ ) {
 201                 if ( !StrnCaseCmp(argv[i], "rid", strlen("rid")) ) {
 202                         rid = get_int_param(argv[i]);
 203                         if ( rid < DOMAIN_GROUP_RID_ADMINS ) {
 204                                 d_printf("RID must be greater than %d\n", (uint32)DOMAIN_GROUP_RID_ADMINS-1);
 205                                 return -1;
 206                         }
 207                 }
 208                 else if ( !StrnCaseCmp(argv[i], "unixgroup", strlen("unixgroup")) ) {
 209                         fstrcpy( unixgrp, get_string_param( argv[i] ) );
 210                         if ( !unixgrp[0] ) {
 211                                 d_printf("must supply a name\n");
 212                                 return -1;
 213                         }
 214                 }
 215                 else if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 216                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 217                         if ( !ntgroup[0] ) {
 218                                 d_printf("must supply a name\n");
 219                                 return -1;
 220                         }
 221                 }
 222                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 223                         fstrcpy( string_sid, get_string_param( argv[i] ) );
 224                         if ( !string_sid[0] ) {
 225                                 d_printf("must supply a SID\n");
 226                                 return -1;
 227                         }
 228                 }
 229                 else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) {
 230                         fstrcpy( ntcomment, get_string_param( argv[i] ) );
 231                         if ( !ntcomment[0] ) {
 232                                 d_printf("must supply a comment string\n");
 233                                 return -1;
 234                         }
 235                 }
 236                 else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) )  {
 237                         fstrcpy( type, get_string_param( argv[i] ) );
 238                         switch ( type[0] ) {
 239                                 case 'b':
 240                                 case 'B':
 241                                         sid_type = SID_NAME_WKN_GRP;
 242                                         break;
 243                                 case 'd':
 244                                 case 'D':
 245                                         sid_type = SID_NAME_DOM_GRP;
 246                                         break;
 247                                 case 'l':
 248                                 case 'L':
 249                                         sid_type = SID_NAME_ALIAS;
 250                                         break;
 251                         }
 252                 }
 253                 else {
 254                         d_printf("Bad option: %s\n", argv[i]);
 255                         return -1;
 256                 }
 257         }
 258
 259         if ( !unixgrp[0] || (!rid && !string_sid[0]) ) {
 260                 d_printf("Usage: net groupmap add {rid=<int>|sid=<string>} unixgroup=<string> [type=<domain|local|builtin>] [ntgroup=<string>] [comment=<string>]\n");
 261                 return -1;
 262         }
 263
 264         /* append the rid to our own domain/machine SID if we don't have a full SID */
 265         if ( !string_sid[0] ) {
 266                 sid_copy(&sid, get_global_sam_sid());
 267                 sid_append_rid(&sid, rid);
 268                 sid_to_string(string_sid, &sid);
 269         }
 270
 271         if (ntcomment[0])
 272                 fstrcpy(ntcomment, "Local Unix group");
 273
 274         if ( !(gid = nametogid(unixgrp)) ) {
 275                 d_printf("Can't lookup UNIX group %s\n", ntgroup);
 276                 return -1;
 277         }
 278
 279         if ( !ntgroup[0] )
 280                 fstrcpy( ntgroup, unixgrp );
 281
 282
 283         init_privilege(&se_priv);
 284 #if 0
 285         if (privilege!=NULL)
 286                 convert_priv_from_text(&se_priv, privilege);
 287 #endif
 288
 289         if (!add_initial_entry(gid, string_sid, sid_type, ntgroup,
 290                               ntcomment, se_priv, PR_ACCESS_FROM_NETWORK) ) {
 291                 d_printf("adding entry for group %s failed!\n", ntgroup);
 292                 return -1;
 293         }
 294
 295         free_privilege(&se_priv);
 296
 297         d_printf("Successully added group %s to the mapping db\n", ntgroup);
 298         return 0;
 299 }
 300
 301 int net_groupmap_modify(int argc, const char **argv)
 302 {
 303         DOM_SID sid;
 304         GROUP_MAP map;
 305         fstring ntcomment = "";
 306         fstring type = "";
 307         fstring ntgroup = "";
 308         fstring unixgrp = "";
 309         fstring sid_string = "";
 310         enum SID_NAME_USE sid_type = SID_NAME_UNKNOWN;
 311         int i;
 312         gid_t gid;
 313
 314         /* get the options */
 315         for ( i=0; i<argc; i++ ) {
 316                 if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 317                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 318                         if ( !ntgroup[0] ) {
 319                                 d_printf("must supply a name\n");
 320                                 return -1;
 321                         }
 322                 }
 323                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 324                         fstrcpy( sid_string, get_string_param( argv[i] ) );
 325                         if ( !sid_string[0] ) {
 326                                 d_printf("must supply a name\n");
 327                                 return -1;
 328                         }
 329                 }
 330                 else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) {
 331                         fstrcpy( ntcomment, get_string_param( argv[i] ) );
 332                         if ( !ntcomment[0] ) {
 333                                 d_printf("must supply a comment string\n");
 334                                 return -1;
 335                         }
 336                 }
 337                 else if ( !StrnCaseCmp(argv[i], "unixgroup", strlen("unixgroup")) ) {
 338                         fstrcpy( unixgrp, get_string_param( argv[i] ) );
 339                         if ( !unixgrp[0] ) {
 340                                 d_printf("must supply a group name\n");
 341                                 return -1;
 342                         }
 343                 }
 344                 else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) )  {
 345                         fstrcpy( type, get_string_param( argv[i] ) );
 346                         switch ( type[0] ) {
 347                                 case 'd':
 348                                 case 'D':
 349                                         sid_type = SID_NAME_DOM_GRP;
 350                                         break;
 351                                 case 'l':
 352                                 case 'L':
 353                                         sid_type = SID_NAME_ALIAS;
 354                                         break;
 355                         }
 356                 }
 357                 else {
 358                         d_printf("Bad option: %s\n", argv[i]);
 359                         return -1;
 360                 }
 361         }
 362
 363         if ( !ntgroup[0] && !sid_string[0] ) {
 364                 d_printf("Usage: net groupmap modify {ntgroup=<string>|sid=<SID>} [comment=<string>] [unixgroup=<string>] [type=<domain|local>]\n");
 365                 return -1;
 366         }
 367
 368         /* give preference to the SID; if both the ntgroup name and SID
 369            are defined, use the SID and assume that the group name could be a
 370            new name */
 371
 372         if ( sid_string[0] ) {
 373                 if (!get_sid_from_input(&sid, sid_string)) {
 374                         return -1;
 375                 }
 376         }
 377         else {
 378                 if (!get_sid_from_input(&sid, ntgroup)) {
 379                         return -1;
 380                 }
 381         }
 382
 383         /* Get the current mapping from the database */
 384         if(!pdb_getgrsid(&map, sid, MAPPING_WITH_PRIV)) {
 385                 d_printf("Failure to local group SID in the database\n");
 386                 return -1;
 387         }
 388
 389         /*
 390          * Allow changing of group type only between domain and local
 391          * We disallow changing Builtin groups !!! (SID problem)
 392          */
 393         if ( sid_type != SID_NAME_UNKNOWN )
 394         {
 395                 if ( map.sid_name_use == SID_NAME_WKN_GRP ) {
 396                         d_printf("You can only change between domain and local groups.\n");
 397                         return -1;
 398                 }
 399
 400                 map.sid_name_use=sid_type;
 401         }
 402
 403         /* Change comment if new one */
 404         if ( ntcomment[0] )
 405                 fstrcpy( map.comment, ntcomment );
 406
 407         if ( ntgroup[0] )
 408                 fstrcpy( map.nt_name, ntgroup );
 409
 410         if ( unixgrp[0] ) {
 411                 gid = nametogid( unixgrp );
 412                 if ( gid == -1 ) {
 413                         d_printf("Unable to lookup UNIX group %s.  Make sure the group exists.\n",
 414                                 unixgrp);
 415                         return -1;
 416                 }
 417
 418                 map.gid = gid;
 419         }
 420
 421 #if 0
 422         /* Change the privilege if new one */
 423         if (privilege!=NULL)
 424                 convert_priv_from_text(&map.priv_set, privilege);
 425 #endif
 426
 427         if ( !pdb_update_group_mapping_entry(&map) ) {
 428                 d_printf("Could not update group database\n");
 429                 free_privilege(&map.priv_set);
 430                 return -1;
 431         }
 432
 433         free_privilege(&map.priv_set);
 434
 435         d_printf("Updated mapping entry for %s\n", ntgroup);
 436
 437         return 0;
 438 }
 439
 440 int net_groupmap_delete(int argc, const char **argv)
 441 {
 442         DOM_SID sid;
 443         fstring ntgroup = "";
 444         fstring sid_string = "";
 445         int i;
 446
 447         /* get the options */
 448         for ( i=0; i<argc; i++ ) {
 449                 if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) {
 450                         fstrcpy( ntgroup, get_string_param( argv[i] ) );
 451                         if ( !ntgroup[0] ) {
 452                                 d_printf("must supply a name\n");
 453                                 return -1;
 454                         }
 455                 }
 456                 else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) {
 457                         fstrcpy( sid_string, get_string_param( argv[i] ) );
 458                         if ( !sid_string[0] ) {
 459                                 d_printf("must supply a SID\n");
 460                                 return -1;
 461                         }
 462                 }
 463                 else {
 464                         d_printf("Bad option: %s\n", argv[i]);
 465                         return -1;
 466                 }
 467         }
 468
 469         if ( !ntgroup[0] && !sid_string[0]) {
 470                 d_printf("Usage: net groupmap delete {ntgroup=<string>|sid=<SID>}\n");
 471                 return -1;
 472         }
 473
 474         /* give preference to the SID if we have that */
 475
 476         if ( sid_string[0] )
 477                 fstrcpy( ntgroup, sid_string );
 478
 479         if ( !get_sid_from_input(&sid, ntgroup) ) {
 480                 d_printf("Unable to resolve group %s to a SID\n", ntgroup);
 481                 return -1;
 482         }
 483
 484         if ( !pdb_delete_group_mapping_entry(sid) ) {
 485                 printf("Failed to removing group %s from the mapping db!\n", ntgroup);
 486                 return -1;
 487         }
 488
 489         d_printf("Sucessfully removed %s from the mapping db\n", ntgroup);
 490
 491         return 0;
 492 }
 493