/* * Unix SMB/CIFS implementation. * RPC Pipe client / server routines * Copyright (C) Andrew Tridgell 1992-2000, * Copyright (C) Jean Fran�ois Micouleau 1998-2001. * Copyright (C) Gerald Carter 2003, * Copyright (C) Volker Lendecke 2004 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include "includes.h" #include "utils/net.h" /********************************************************* utility function to parse an integer parameter from "parameter = value" **********************************************************/ static uint32 get_int_param( const char* param ) { char *p; p = strchr( param, '=' ); if ( !p ) return 0; return atoi(p+1); } /********************************************************* utility function to parse an integer parameter from "parameter = value" **********************************************************/ static char* get_string_param( const char* param ) { char *p; p = strchr( param, '=' ); if ( !p ) return NULL; return (p+1); } /********************************************************* Figure out if the input was an NT group or a SID string. Return the SID. **********************************************************/ static BOOL get_sid_from_input(DOM_SID *sid, char *input) { GROUP_MAP map; if (StrnCaseCmp( input, "S-", 2)) { /* Perhaps its the NT group name? */ if (!pdb_getgrnam(&map, input)) { printf("NT Group %s doesn't exist in mapping DB\n", input); return False; } else { *sid = map.sid; } } else { if (!string_to_sid(sid, input)) { printf("converting sid %s from a string failed!\n", input); return False; } } return True; } /********************************************************* Dump a GROUP_MAP entry to stdout (long or short listing) **********************************************************/ static void print_map_entry ( GROUP_MAP map, BOOL long_list ) { if (!long_list) d_printf("%s (%s) -> %s\n", map.nt_name, sid_string_static(&map.sid), gidtoname(map.gid)); else { d_printf("%s\n", map.nt_name); d_printf("\tSID : %s\n", sid_string_static(&map.sid)); d_printf("\tUnix gid : %d\n", map.gid); d_printf("\tUnix group: %s\n", gidtoname(map.gid)); d_printf("\tGroup type: %s\n", sid_type_lookup(map.sid_name_use)); d_printf("\tComment : %s\n", map.comment); } } /********************************************************* List the groups. **********************************************************/ static int net_groupmap_list(int argc, const char **argv) { size_t entries; BOOL long_list = False; size_t i; fstring ntgroup = ""; fstring sid_string = ""; if (opt_verbose || opt_long_list_entries) long_list = True; /* get the options */ for ( i=0; i<argc; i++ ) { if ( !StrCaseCmp(argv[i], "verbose")) { long_list = True; } else if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) { fstrcpy( ntgroup, get_string_param( argv[i] ) ); if ( !ntgroup[0] ) { d_fprintf(stderr, "must supply a name\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) { fstrcpy( sid_string, get_string_param( argv[i] ) ); if ( !sid_string[0] ) { d_fprintf(stderr, "must supply a SID\n"); return -1; } } else { d_fprintf(stderr, "Bad option: %s\n", argv[i]); return -1; } } /* list a single group is given a name */ if ( ntgroup[0] || sid_string[0] ) { DOM_SID sid; GROUP_MAP map; if ( sid_string[0] ) fstrcpy( ntgroup, sid_string); if (!get_sid_from_input(&sid, ntgroup)) { return -1; } /* Get the current mapping from the database */ if(!pdb_getgrsid(&map, sid)) { d_fprintf(stderr, "Failure to local group SID in the database\n"); return -1; } print_map_entry( map, long_list ); } else { GROUP_MAP *map=NULL; /* enumerate all group mappings */ if (!pdb_enum_group_mapping(NULL, SID_NAME_UNKNOWN, &map, &entries, ENUM_ALL_MAPPED)) return -1; for (i=0; i<entries; i++) { print_map_entry( map[i], long_list ); } SAFE_FREE(map); } return 0; } /********************************************************* Add a new group mapping entry **********************************************************/ static int net_groupmap_add(int argc, const char **argv) { DOM_SID sid; fstring ntgroup = ""; fstring unixgrp = ""; fstring string_sid = ""; fstring type = ""; fstring ntcomment = ""; enum lsa_SidType sid_type = SID_NAME_DOM_GRP; uint32 rid = 0; gid_t gid; int i; GROUP_MAP map; const char *name_type; ZERO_STRUCT(map); /* Default is domain group. */ map.sid_name_use = SID_NAME_DOM_GRP; name_type = "domain group"; /* get the options */ for ( i=0; i<argc; i++ ) { if ( !StrnCaseCmp(argv[i], "rid", strlen("rid")) ) { rid = get_int_param(argv[i]); if ( rid < DOMAIN_GROUP_RID_ADMINS ) { d_fprintf(stderr, "RID must be greater than %d\n", (uint32)DOMAIN_GROUP_RID_ADMINS-1); return -1; } } else if ( !StrnCaseCmp(argv[i], "unixgroup", strlen("unixgroup")) ) { fstrcpy( unixgrp, get_string_param( argv[i] ) ); if ( !unixgrp[0] ) { d_fprintf(stderr, "must supply a name\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) { fstrcpy( ntgroup, get_string_param( argv[i] ) ); if ( !ntgroup[0] ) { d_fprintf(stderr, "must supply a name\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) { fstrcpy( string_sid, get_string_param( argv[i] ) ); if ( !string_sid[0] ) { d_fprintf(stderr, "must supply a SID\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) { fstrcpy( ntcomment, get_string_param( argv[i] ) ); if ( !ntcomment[0] ) { d_fprintf(stderr, "must supply a comment string\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) ) { fstrcpy( type, get_string_param( argv[i] ) ); switch ( type[0] ) { case 'b': case 'B': sid_type = SID_NAME_WKN_GRP; name_type = "wellknown group"; break; case 'd': case 'D': sid_type = SID_NAME_DOM_GRP; name_type = "domain group"; break; case 'l': case 'L': sid_type = SID_NAME_ALIAS; name_type = "alias (local) group"; break; default: d_fprintf(stderr, "unknown group type %s\n", type); return -1; } } else { d_fprintf(stderr, "Bad option: %s\n", argv[i]); return -1; } } if ( !unixgrp[0] ) { d_printf("Usage: net groupmap add {rid=<int>|sid=<string>} unixgroup=<string> [type=<domain|local|builtin>] [ntgroup=<string>] [comment=<string>]\n"); return -1; } if ( (gid = nametogid(unixgrp)) == (gid_t)-1 ) { d_fprintf(stderr, "Can't lookup UNIX group %s\n", unixgrp); return -1; } { if (pdb_getgrgid(&map, gid)) { d_printf("Unix group %s already mapped to SID %s\n", unixgrp, sid_string_static(&map.sid)); return -1; } } if ( (rid == 0) && (string_sid[0] == '\0') ) { d_printf("No rid or sid specified, choosing a RID\n"); if (pdb_rid_algorithm()) { rid = algorithmic_pdb_gid_to_group_rid(gid); } else { if (!pdb_new_rid(&rid)) { d_printf("Could not get new RID\n"); } } d_printf("Got RID %d\n", rid); } /* append the rid to our own domain/machine SID if we don't have a full SID */ if ( !string_sid[0] ) { sid_copy(&sid, get_global_sam_sid()); sid_append_rid(&sid, rid); sid_to_string(string_sid, &sid); } if (!ntcomment[0]) { switch (sid_type) { case SID_NAME_WKN_GRP: fstrcpy(ntcomment, "Wellknown Unix group"); break; case SID_NAME_DOM_GRP: fstrcpy(ntcomment, "Domain Unix group"); break; case SID_NAME_ALIAS: fstrcpy(ntcomment, "Local Unix group"); break; default: fstrcpy(ntcomment, "Unix group"); break; } } if (!ntgroup[0] ) fstrcpy( ntgroup, unixgrp ); if (!NT_STATUS_IS_OK(add_initial_entry(gid, string_sid, sid_type, ntgroup, ntcomment))) { d_fprintf(stderr, "adding entry for group %s failed!\n", ntgroup); return -1; } d_printf("Successfully added group %s to the mapping db as a %s\n", ntgroup, name_type); return 0; } static int net_groupmap_modify(int argc, const char **argv) { DOM_SID sid; GROUP_MAP map; fstring ntcomment = ""; fstring type = ""; fstring ntgroup = ""; fstring unixgrp = ""; fstring sid_string = ""; enum lsa_SidType sid_type = SID_NAME_UNKNOWN; int i; gid_t gid; /* get the options */ for ( i=0; i<argc; i++ ) { if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) { fstrcpy( ntgroup, get_string_param( argv[i] ) ); if ( !ntgroup[0] ) { d_fprintf(stderr, "must supply a name\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) { fstrcpy( sid_string, get_string_param( argv[i] ) ); if ( !sid_string[0] ) { d_fprintf(stderr, "must supply a name\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) { fstrcpy( ntcomment, get_string_param( argv[i] ) ); if ( !ntcomment[0] ) { d_fprintf(stderr, "must supply a comment string\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "unixgroup", strlen("unixgroup")) ) { fstrcpy( unixgrp, get_string_param( argv[i] ) ); if ( !unixgrp[0] ) { d_fprintf(stderr, "must supply a group name\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) ) { fstrcpy( type, get_string_param( argv[i] ) ); switch ( type[0] ) { case 'd': case 'D': sid_type = SID_NAME_DOM_GRP; break; case 'l': case 'L': sid_type = SID_NAME_ALIAS; break; } } else { d_fprintf(stderr, "Bad option: %s\n", argv[i]); return -1; } } if ( !ntgroup[0] && !sid_string[0] ) { d_printf("Usage: net groupmap modify {ntgroup=<string>|sid=<SID>} [comment=<string>] [unixgroup=<string>] [type=<domain|local>]\n"); return -1; } /* give preference to the SID; if both the ntgroup name and SID are defined, use the SID and assume that the group name could be a new name */ if ( sid_string[0] ) { if (!get_sid_from_input(&sid, sid_string)) { return -1; } } else { if (!get_sid_from_input(&sid, ntgroup)) { return -1; } } /* Get the current mapping from the database */ if(!pdb_getgrsid(&map, sid)) { d_fprintf(stderr, "Failure to local group SID in the database\n"); return -1; } /* * Allow changing of group type only between domain and local * We disallow changing Builtin groups !!! (SID problem) */ if (sid_type == SID_NAME_UNKNOWN) { d_fprintf(stderr, "Can't map to an unknown group type.\n"); return -1; } if (map.sid_name_use == SID_NAME_WKN_GRP) { d_fprintf(stderr, "You can only change between domain and local groups.\n"); return -1; } map.sid_name_use=sid_type; /* Change comment if new one */ if ( ntcomment[0] ) fstrcpy( map.comment, ntcomment ); if ( ntgroup[0] ) fstrcpy( map.nt_name, ntgroup ); if ( unixgrp[0] ) { gid = nametogid( unixgrp ); if ( gid == -1 ) { d_fprintf(stderr, "Unable to lookup UNIX group %s. Make sure the group exists.\n", unixgrp); return -1; } map.gid = gid; } if ( !NT_STATUS_IS_OK(pdb_update_group_mapping_entry(&map)) ) { d_fprintf(stderr, "Could not update group database\n"); return -1; } d_printf("Updated mapping entry for %s\n", map.nt_name); return 0; } static int net_groupmap_delete(int argc, const char **argv) { DOM_SID sid; fstring ntgroup = ""; fstring sid_string = ""; int i; /* get the options */ for ( i=0; i<argc; i++ ) { if ( !StrnCaseCmp(argv[i], "ntgroup", strlen("ntgroup")) ) { fstrcpy( ntgroup, get_string_param( argv[i] ) ); if ( !ntgroup[0] ) { d_fprintf(stderr, "must supply a name\n"); return -1; } } else if ( !StrnCaseCmp(argv[i], "sid", strlen("sid")) ) { fstrcpy( sid_string, get_string_param( argv[i] ) ); if ( !sid_string[0] ) { d_fprintf(stderr, "must supply a SID\n"); return -1; } } else { d_fprintf(stderr, "Bad option: %s\n", argv[i]); return -1; } } if ( !ntgroup[0] && !sid_string[0]) { d_printf("Usage: net groupmap delete {ntgroup=<string>|sid=<SID>}\n"); return -1; } /* give preference to the SID if we have that */ if ( sid_string[0] ) fstrcpy( ntgroup, sid_string ); if ( !get_sid_from_input(&sid, ntgroup) ) { d_fprintf(stderr, "Unable to resolve group %s to a SID\n", ntgroup); return -1; } if ( !NT_STATUS_IS_OK(pdb_delete_group_mapping_entry(sid)) ) { d_fprintf(stderr, "Failed to removing group %s from the mapping db!\n", ntgroup); return -1; } d_printf("Sucessfully removed %s from the mapping db\n", ntgroup); return 0; } static int net_groupmap_set(int argc, const char **argv) { const char *ntgroup = NULL; struct group *grp = NULL; GROUP_MAP map; BOOL have_map = False; if ((argc < 1) || (argc > 2)) { d_printf("Usage: net groupmap set \"NT Group\" " "[\"unix group\"] [-C \"comment\"] [-L] [-D]\n"); return -1; } if ( opt_localgroup && opt_domaingroup ) { d_printf("Can only specify -L or -D, not both\n"); return -1; } ntgroup = argv[0]; if (argc == 2) { grp = getgrnam(argv[1]); if (grp == NULL) { d_fprintf(stderr, "Could not find unix group %s\n", argv[1]); return -1; } } have_map = pdb_getgrnam(&map, ntgroup); if (!have_map) { DOM_SID sid; have_map = ( (strncmp(ntgroup, "S-", 2) == 0) && string_to_sid(&sid, ntgroup) && pdb_getgrsid(&map, sid) ); } if (!have_map) { /* Ok, add it */ if (grp == NULL) { d_fprintf(stderr, "Could not find group mapping for %s\n", ntgroup); return -1; } map.gid = grp->gr_gid; if (opt_rid == 0) { if ( pdb_rid_algorithm() ) opt_rid = algorithmic_pdb_gid_to_group_rid(map.gid); else { if ( !pdb_new_rid((uint32*)&opt_rid) ) { d_fprintf( stderr, "Could not allocate new RID\n"); return -1; } } } sid_copy(&map.sid, get_global_sam_sid()); sid_append_rid(&map.sid, opt_rid); map.sid_name_use = SID_NAME_DOM_GRP; fstrcpy(map.nt_name, ntgroup); fstrcpy(map.comment, ""); if (!NT_STATUS_IS_OK(pdb_add_group_mapping_entry(&map))) { d_fprintf(stderr, "Could not add mapping entry for %s\n", ntgroup); return -1; } } /* Now we have a mapping entry, update that stuff */ if ( opt_localgroup || opt_domaingroup ) { if (map.sid_name_use == SID_NAME_WKN_GRP) { d_fprintf(stderr, "Can't change type of the BUILTIN group %s\n", map.nt_name); return -1; } } if (opt_localgroup) map.sid_name_use = SID_NAME_ALIAS; if (opt_domaingroup) map.sid_name_use = SID_NAME_DOM_GRP; /* The case (opt_domaingroup && opt_localgroup) was tested for above */ if (strlen(opt_comment) > 0) fstrcpy(map.comment, opt_comment); if (strlen(opt_newntname) > 0) fstrcpy(map.nt_name, opt_newntname); if (grp != NULL) map.gid = grp->gr_gid; if (!NT_STATUS_IS_OK(pdb_update_group_mapping_entry(&map))) { d_fprintf(stderr, "Could not update group mapping for %s\n", ntgroup); return -1; } return 0; } static int net_groupmap_cleanup(int argc, const char **argv) { GROUP_MAP *map = NULL; size_t i, entries; if (!pdb_enum_group_mapping(NULL, SID_NAME_UNKNOWN, &map, &entries, ENUM_ALL_MAPPED)) { d_fprintf(stderr, "Could not list group mappings\n"); return -1; } for (i=0; i<entries; i++) { if (map[i].gid == -1) printf("Group %s is not mapped\n", map[i].nt_name); if (!sid_check_is_in_our_domain(&map[i].sid)) { printf("Deleting mapping for NT Group %s, sid %s\n", map[i].nt_name, sid_string_static(&map[i].sid)); pdb_delete_group_mapping_entry(map[i].sid); } } SAFE_FREE(map); return 0; } static int net_groupmap_addmem(int argc, const char **argv) { DOM_SID alias, member; if ( (argc != 2) || !string_to_sid(&alias, argv[0]) || !string_to_sid(&member, argv[1]) ) { d_printf("Usage: net groupmap addmem alias-sid member-sid\n"); return -1; } if (!NT_STATUS_IS_OK(pdb_add_aliasmem(&alias, &member))) { d_fprintf(stderr, "Could not add sid %s to alias %s\n", argv[1], argv[0]); return -1; } return 0; } static int net_groupmap_delmem(int argc, const char **argv) { DOM_SID alias, member; if ( (argc != 2) || !string_to_sid(&alias, argv[0]) || !string_to_sid(&member, argv[1]) ) { d_printf("Usage: net groupmap delmem alias-sid member-sid\n"); return -1; } if (!NT_STATUS_IS_OK(pdb_del_aliasmem(&alias, &member))) { d_fprintf(stderr, "Could not delete sid %s from alias %s\n", argv[1], argv[0]); return -1; } return 0; } static int net_groupmap_listmem(int argc, const char **argv) { DOM_SID alias; DOM_SID *members; size_t i, num; if ( (argc != 1) || !string_to_sid(&alias, argv[0]) ) { d_printf("Usage: net groupmap listmem alias-sid\n"); return -1; } members = NULL; num = 0; if (!NT_STATUS_IS_OK(pdb_enum_aliasmem(&alias, &members, &num))) { d_fprintf(stderr, "Could not list members for sid %s\n", argv[0]); return -1; } for (i = 0; i < num; i++) { printf("%s\n", sid_string_static(&(members[i]))); } TALLOC_FREE(members); return 0; } static BOOL print_alias_memberships(TALLOC_CTX *mem_ctx, const DOM_SID *domain_sid, const DOM_SID *member) { uint32 *alias_rids; size_t i, num_alias_rids; alias_rids = NULL; num_alias_rids = 0; if (!NT_STATUS_IS_OK(pdb_enum_alias_memberships( mem_ctx, domain_sid, member, 1, &alias_rids, &num_alias_rids))) { d_fprintf(stderr, "Could not list memberships for sid %s\n", sid_string_static(member)); return False; } for (i = 0; i < num_alias_rids; i++) { DOM_SID alias; sid_copy(&alias, domain_sid); sid_append_rid(&alias, alias_rids[i]); printf("%s\n", sid_string_static(&alias)); } return True; } static int net_groupmap_memberships(int argc, const char **argv) { TALLOC_CTX *mem_ctx; DOM_SID *domain_sid, *builtin_sid, member; if ( (argc != 1) || !string_to_sid(&member, argv[0]) ) { d_printf("Usage: net groupmap memberof sid\n"); return -1; } mem_ctx = talloc_init("net_groupmap_memberships"); if (mem_ctx == NULL) { d_fprintf(stderr, "talloc_init failed\n"); return -1; } domain_sid = get_global_sam_sid(); builtin_sid = string_sid_talloc(mem_ctx, "S-1-5-32"); if ((domain_sid == NULL) || (builtin_sid == NULL)) { d_fprintf(stderr, "Could not get domain sid\n"); return -1; } if (!print_alias_memberships(mem_ctx, domain_sid, &member) || !print_alias_memberships(mem_ctx, builtin_sid, &member)) return -1; talloc_destroy(mem_ctx); return 0; } int net_help_groupmap(int argc, const char **argv) { d_printf("net groupmap add"\ "\n Create a new group mapping\n"); d_printf("net groupmap modify"\ "\n Update a group mapping\n"); d_printf("net groupmap delete"\ "\n Remove a group mapping\n"); d_printf("net groupmap addmem"\ "\n Add a foreign alias member\n"); d_printf("net groupmap delmem"\ "\n Delete a foreign alias member\n"); d_printf("net groupmap listmem"\ "\n List foreign group members\n"); d_printf("net groupmap memberships"\ "\n List foreign group memberships\n"); d_printf("net groupmap list"\ "\n List current group map\n"); d_printf("net groupmap set"\ "\n Set group mapping\n"); d_printf("net groupmap cleanup"\ "\n Remove foreign group mapping entries\n"); return -1; } /*********************************************************** migrated functionality from smbgroupedit **********************************************************/ int net_groupmap(int argc, const char **argv) { struct functable func[] = { {"add", net_groupmap_add}, {"modify", net_groupmap_modify}, {"delete", net_groupmap_delete}, {"set", net_groupmap_set}, {"cleanup", net_groupmap_cleanup}, {"addmem", net_groupmap_addmem}, {"delmem", net_groupmap_delmem}, {"listmem", net_groupmap_listmem}, {"memberships", net_groupmap_memberships}, {"list", net_groupmap_list}, {"help", net_help_groupmap}, {NULL, NULL} }; /* we shouldn't have silly checks like this */ if (getuid() != 0) { d_fprintf(stderr, "You must be root to edit group mappings.\n"); return -1; } if ( argc ) return net_run_function(argc, argv, func, net_help_groupmap); return net_help_groupmap( argc, argv ); }