/* 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(struct net_context *c, int argc, const char **argv) { TDB_CONTEXT *idmap_tdb; if ( argc != 1 || c->display_usage) { d_printf("Usage:\n" "net idmap dump <inputfile>\n" " Dump current ID mapping.\n" " inputfile\tTDB file to read mappings from.\n"); return c->display_usage?0:-1; } 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(struct net_context *c, int argc, const char **argv) { TALLOC_CTX *ctx; FILE *input; if (c->display_usage) { d_printf("Usage:\n" "net idmap restore [inputfile]\n" " Restore ID mappings from file\n" " inputfile\tFile to load ID mappings from. If not " "given, load data from stdin.\n"); return 0; } 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; struct wbcDomainSid sid; enum id_type type = ID_TYPE_NOT_SPECIFIED; unsigned long idval; wbcErr wbc_status; 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) { type = ID_TYPE_GID; } else if (sscanf(line, "UID %lu %128s", &idval, sid_string) == 2) { type = ID_TYPE_UID; } else if (sscanf(line, "USER HWM %lu", &idval) == 1) { /* set uid hwm */ wbc_status = wbcSetUidHwm(idval); if (!WBC_ERROR_IS_OK(wbc_status)) { d_fprintf(stderr, "Could not set USER HWM: %s\n", wbcErrorString(wbc_status)); } continue; } else if (sscanf(line, "GROUP HWM %lu", &idval) == 1) { /* set gid hwm */ wbc_status = wbcSetGidHwm(idval); if (!WBC_ERROR_IS_OK(wbc_status)) { d_fprintf(stderr, "Could not set GROUP HWM: %s\n", wbcErrorString(wbc_status)); } continue; } else { d_fprintf(stderr, "ignoring invalid line [%s]\n", line); continue; } wbc_status = wbcStringToSid(sid_string, &sid); if (!WBC_ERROR_IS_OK(wbc_status)) { d_fprintf(stderr, "ignoring invalid sid [%s]: %s\n", sid_string, wbcErrorString(wbc_status)); continue; } if (type == ID_TYPE_UID) { wbc_status = wbcSetUidMapping(idval, &sid); } else { wbc_status = wbcSetGidMapping(idval, &sid); } if (!WBC_ERROR_IS_OK(wbc_status)) { d_fprintf(stderr, "Could not set mapping of %s %lu to sid %s: %s\n", (type == ID_TYPE_GID) ? "GID" : "UID", idval, sid_string, wbcErrorString(wbc_status)); 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(struct net_context *c, int argc, const char **argv) { d_printf("Not Implemented yet\n"); return -1; } static int net_idmap_set(struct net_context *c, 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(struct net_context *c, 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 || c->display_usage) { d_printf("Usage:\n" "net idmap secret {<DOMAIN>|alloc} <secret>\n" " Set the secret for the specified domain " "(or alloc module)\n" " DOMAIN\tDomain to set secret for.\n" " alloc\tSet secret for the alloc module\n" " secret\tNew secret to set.\n"); return c->display_usage?0:-1; } 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(struct net_context *c, int argc, const char **argv) { d_printf("net idmap dump <inputfile>\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; } static int net_idmap_aclmapset(struct net_context *c, int argc, const char **argv) { TALLOC_CTX *mem_ctx; int result = -1; DOM_SID src_sid, dst_sid; char *src, *dst; struct db_context *db; struct db_record *rec; NTSTATUS status; if (argc != 3 || c->display_usage) { d_fprintf(stderr, "usage: net idmap aclmapset <tdb> " "<src-sid> <dst-sid>\n"); return -1; } if (!(mem_ctx = talloc_init("net idmap aclmapset"))) { d_fprintf(stderr, "talloc_init failed\n"); return -1; } if (!(db = db_open(mem_ctx, argv[0], 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600))) { d_fprintf(stderr, "db_open failed: %s\n", strerror(errno)); goto fail; } if (!string_to_sid(&src_sid, argv[1])) { d_fprintf(stderr, "%s is not a valid sid\n", argv[1]); goto fail; } if (!string_to_sid(&dst_sid, argv[2])) { d_fprintf(stderr, "%s is not a valid sid\n", argv[2]); goto fail; } if (!(src = sid_string_talloc(mem_ctx, &src_sid)) || !(dst = sid_string_talloc(mem_ctx, &dst_sid))) { d_fprintf(stderr, "talloc_strdup failed\n"); goto fail; } if (!(rec = db->fetch_locked( db, mem_ctx, string_term_tdb_data(src)))) { d_fprintf(stderr, "could not fetch db record\n"); goto fail; } status = rec->store(rec, string_term_tdb_data(dst), 0); TALLOC_FREE(rec); if (!NT_STATUS_IS_OK(status)) { d_fprintf(stderr, "could not store record: %s\n", nt_errstr(status)); goto fail; } result = 0; fail: TALLOC_FREE(mem_ctx); return result; } /*********************************************************** Look at the current idmap **********************************************************/ int net_idmap(struct net_context *c, int argc, const char **argv) { struct functable func[] = { { "dump", net_idmap_dump, NET_TRANSPORT_LOCAL, "Dump the current ID mappings", "net idmap dump\n" " Dump the current ID mappings" }, { "restore", net_idmap_restore, NET_TRANSPORT_LOCAL, "Restore entries from stdin", "net idmap restore\n" " Restore entries from stdin" }, { "setmap", net_idmap_set, NET_TRANSPORT_LOCAL, "Not implemented yet", "net idmap setmap\n" " Not implemented yet" }, { "delete", net_idmap_delete, NET_TRANSPORT_LOCAL, "Not implemented yet", "net idmap delete\n" " Not implemented yet" }, { "secret", net_idmap_secret, NET_TRANSPORT_LOCAL, "Set secret for specified domain", "net idmap secret {<DOMAIN>|alloc} <secret>\n" " Set secret for specified domain or alloc module" }, { "aclmapset", net_idmap_aclmapset, NET_TRANSPORT_LOCAL, "Set acl map", "net idmap aclmapset\n" " Set acl map" }, {NULL, NULL, 0, NULL, NULL} }; return net_run_function(c, argc, argv, "net idmap", func); }