/* Samba Unix/Linux SMB client library Distributed SMB/CIFS Server Management Utility Copyright (C) 2003 Andrew Bartlett (abartlet@samba.org) 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" #define ALLOC_CHECK(mem) do { \ if (!mem) { \ d_fprintf(stderr, "Out of memory!\n"); \ talloc_free(ctx); \ return -1; \ } } while(0) /*********************************************************** Helper function for net_idmap_dump. Dump one entry. **********************************************************/ static int net_idmap_dump_one_entry(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA data, void *unused) { if (strcmp((char *)key.dptr, "USER HWM") == 0) { printf("USER HWM %d\n", IVAL(data.dptr,0)); return 0; } if (strcmp((char *)key.dptr, "GROUP HWM") == 0) { printf("GROUP HWM %d\n", IVAL(data.dptr,0)); return 0; } if (strncmp((char *)key.dptr, "S-", 2) != 0) return 0; printf("%s %s\n", data.dptr, key.dptr); return 0; } /*********************************************************** Dump the current idmap **********************************************************/ static int net_idmap_dump(int argc, const char **argv) { TDB_CONTEXT *idmap_tdb; if ( argc != 1 ) return net_help_idmap( argc, argv ); idmap_tdb = tdb_open_log(argv[0], 0, TDB_DEFAULT, O_RDONLY, 0); if (idmap_tdb == NULL) { d_fprintf(stderr, "Could not open idmap: %s\n", argv[0]); return -1; } tdb_traverse(idmap_tdb, net_idmap_dump_one_entry, NULL); tdb_close(idmap_tdb); return 0; } /*********************************************************** Write entries from stdin to current local idmap **********************************************************/ static int net_idmap_restore(int argc, const char **argv) { TALLOC_CTX *ctx; FILE *input; if (! winbind_ping()) { d_fprintf(stderr, "To use net idmap Winbindd must be running.\n"); return -1; } ctx = talloc_new(NULL); ALLOC_CHECK(ctx); if (argc == 1) { input = fopen(argv[0], "r"); } else { input = stdin; } while (!feof(input)) { char line[128], sid_string[128]; int len; DOM_SID sid; struct id_map map; unsigned long idval; if (fgets(line, 127, input) == NULL) break; len = strlen(line); if ( (len > 0) && (line[len-1] == '\n') ) line[len-1] = '\0'; if (sscanf(line, "GID %lu %128s", &idval, sid_string) == 2) { map.xid.type = ID_TYPE_GID; map.xid.id = idval; } else if (sscanf(line, "UID %lu %128s", &idval, sid_string) == 2) { map.xid.type = ID_TYPE_UID; map.xid.id = idval; } else if (sscanf(line, "USER HWM %lu", &idval) == 1) { /* set uid hwm */ if (! winbind_set_uid_hwm(idval)) { d_fprintf(stderr, "Could not set USER HWM\n"); } continue; } else if (sscanf(line, "GROUP HWM %lu", &idval) == 1) { /* set gid hwm */ if (! winbind_set_gid_hwm(idval)) { d_fprintf(stderr, "Could not set GROUP HWM\n"); } continue; } else { d_fprintf(stderr, "ignoring invalid line [%s]\n", line); continue; } if (!string_to_sid(&sid, sid_string)) { d_fprintf(stderr, "ignoring invalid sid [%s]\n", sid_string); continue; } map.sid = &sid; if (!winbind_set_mapping(&map)) { d_fprintf(stderr, "Could not set mapping of %s %lu to sid %s\n", (map.xid.type == ID_TYPE_GID) ? "GID" : "UID", (unsigned long)map.xid.id, sid_string_static(map.sid)); continue; } } if (input != stdin) { fclose(input); } talloc_free(ctx); return 0; } /*********************************************************** Delete a SID mapping from a winbindd_idmap.tdb **********************************************************/ static int net_idmap_delete(int argc, const char **argv) { d_printf("Not Implemented yet\n"); return -1; } static int net_idmap_set(int argc, const char **argv) { d_printf("Not Implemented yet\n"); return -1; } BOOL idmap_store_secret(const char *backend, bool alloc, const char *domain, const char *identity, const char *secret) { char *tmp; int r; BOOL ret; if (alloc) { r = asprintf(&tmp, "IDMAP_ALLOC_%s", backend); } else { r = asprintf(&tmp, "IDMAP_%s_%s", backend, domain); } if (r < 0) return false; strupper_m(tmp); /* make sure the key is case insensitive */ ret = secrets_store_generic(tmp, identity, secret); free(tmp); return ret; } static int net_idmap_secret(int argc, const char **argv) { TALLOC_CTX *ctx; const char *secret; const char *dn; char *domain; char *backend; char *opt = NULL; BOOL ret; if (argc != 2) { return net_help_idmap(argc, argv); } secret = argv[1]; ctx = talloc_new(NULL); ALLOC_CHECK(ctx); if (strcmp(argv[0], "alloc") == 0) { domain = NULL; backend = lp_idmap_alloc_backend(); } else { domain = talloc_strdup(ctx, argv[0]); ALLOC_CHECK(domain); opt = talloc_asprintf(ctx, "idmap config %s", domain); ALLOC_CHECK(opt); backend = talloc_strdup(ctx, lp_parm_const_string(-1, opt, "backend", "tdb")); ALLOC_CHECK(backend); } if ( ( ! backend) || ( ! strequal(backend, "ldap"))) { d_fprintf(stderr, "The only currently supported backend is LDAP\n"); talloc_free(ctx); return -1; } if (domain) { dn = lp_parm_const_string(-1, opt, "ldap_user_dn", NULL); if ( ! dn) { d_fprintf(stderr, "Missing ldap_user_dn option for domain %s\n", domain); talloc_free(ctx); return -1; } ret = idmap_store_secret("ldap", false, domain, dn, secret); } else { dn = lp_parm_const_string(-1, "idmap alloc config", "ldap_user_dn", NULL); if ( ! dn) { d_fprintf(stderr, "Missing ldap_user_dn option for alloc backend\n"); talloc_free(ctx); return -1; } ret = idmap_store_secret("ldap", true, NULL, dn, secret); } if ( ! ret) { d_fprintf(stderr, "Failed to store secret\n"); talloc_free(ctx); return -1; } d_printf("Secret stored\n"); return 0; } int net_help_idmap(int argc, const char **argv) { d_printf("net idmap dump <outputfile>\n"\ " Dump current id mapping\n"); d_printf("net idmap restore\n"\ " Restore entries from stdin\n"); /* Deliberately *not* document net idmap delete */ d_printf("net idmap secret <DOMAIN>|alloc <secret>\n"\ " Set the secret for the specified DOMAIN (or the alloc module)\n"); return -1; } /*********************************************************** Look at the current idmap **********************************************************/ int net_idmap(int argc, const char **argv) { struct functable func[] = { {"dump", net_idmap_dump}, {"restore", net_idmap_restore}, {"setmap", net_idmap_set }, {"delete", net_idmap_delete}, {"secret", net_idmap_secret}, {"help", net_help_idmap}, {NULL, NULL} }; return net_run_function(argc, argv, func, net_help_idmap); }