diff options
Diffstat (limited to 'source3/utils/net_idmap.c')
| -rw-r--r-- | source3/utils/net_idmap.c | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/source3/utils/net_idmap.c b/source3/utils/net_idmap.c new file mode 100644 index 0000000000..bd363922f6 --- /dev/null +++ b/source3/utils/net_idmap.c @@ -0,0 +1,441 @@ +/* + 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); +} + + |