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502d00e463
This is now not available any more, since allocation is moved below the id mapping layer. The functionality could be reintroduced on a per domain basis as an e.g "net idmap secret <domain> alloc" command.
517 lines
12 KiB
C
517 lines
12 KiB
C
/*
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Samba Unix/Linux SMB client library
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Distributed SMB/CIFS Server Management Utility
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Copyright (C) 2003 Andrew Bartlett (abartlet@samba.org)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define FOO(x) (x)
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#include "includes.h"
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#include "utils/net.h"
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#include "secrets.h"
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#define ALLOC_CHECK(mem) do { \
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if (!mem) { \
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d_fprintf(stderr, _("Out of memory!\n")); \
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talloc_free(ctx); \
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return -1; \
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} } while(0)
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/***********************************************************
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Helper function for net_idmap_dump. Dump one entry.
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**********************************************************/
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static int net_idmap_dump_one_entry(struct db_record *rec,
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void *unused)
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{
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if (strcmp((char *)rec->key.dptr, "USER HWM") == 0) {
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printf(_("USER HWM %d\n"), IVAL(rec->value.dptr,0));
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return 0;
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}
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if (strcmp((char *)rec->key.dptr, "GROUP HWM") == 0) {
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printf(_("GROUP HWM %d\n"), IVAL(rec->value.dptr,0));
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return 0;
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}
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if (strncmp((char *)rec->key.dptr, "S-", 2) != 0)
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return 0;
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printf("%s %s\n", rec->value.dptr, rec->key.dptr);
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return 0;
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}
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/***********************************************************
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Dump the current idmap
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**********************************************************/
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static int net_idmap_dump(struct net_context *c, int argc, const char **argv)
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{
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struct db_context *db;
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TALLOC_CTX *mem_ctx;
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if ( argc != 1 || c->display_usage) {
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d_printf("%s\n%s",
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_("Usage:"),
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_("net idmap dump <inputfile>\n"
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" Dump current ID mapping.\n"
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" inputfile\tTDB file to read mappings from.\n"));
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return c->display_usage?0:-1;
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}
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mem_ctx = talloc_stackframe();
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db = db_open(mem_ctx, argv[0], 0, TDB_DEFAULT, O_RDONLY, 0);
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if (db == NULL) {
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d_fprintf(stderr, _("Could not open idmap db (%s): %s\n"),
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argv[0], strerror(errno));
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talloc_free(mem_ctx);
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return -1;
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}
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db->traverse_read(db, net_idmap_dump_one_entry, NULL);
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talloc_free(mem_ctx);
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return 0;
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}
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/***********************************************************
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Write entries from stdin to current local idmap
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**********************************************************/
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static int net_idmap_store_id_mapping(struct db_context *db,
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enum id_type type,
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unsigned long idval,
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const char *sid_string)
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{
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NTSTATUS status;
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char *idstr = NULL;
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switch(type) {
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case ID_TYPE_UID:
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idstr = talloc_asprintf(talloc_tos(), "UID %lu", idval);
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break;
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case ID_TYPE_GID:
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idstr = talloc_asprintf(talloc_tos(), "GID %lu", idval);
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break;
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default:
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d_fprintf(stderr, "Invalid id mapping type: %d\n", type);
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return -1;
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}
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status = dbwrap_store_bystring(db, idstr,
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string_term_tdb_data(sid_string),
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TDB_REPLACE);
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if (!NT_STATUS_IS_OK(status)) {
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d_fprintf(stderr, "Error storing ID -> SID: "
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"%s\n", nt_errstr(status));
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talloc_free(idstr);
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return -1;
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}
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status = dbwrap_store_bystring(db, sid_string,
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string_term_tdb_data(idstr),
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TDB_REPLACE);
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if (!NT_STATUS_IS_OK(status)) {
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d_fprintf(stderr, "Error storing SID -> ID: "
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"%s\n", nt_errstr(status));
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talloc_free(idstr);
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return -1;
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}
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return 0;
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}
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static int net_idmap_restore(struct net_context *c, int argc, const char **argv)
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{
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TALLOC_CTX *mem_ctx;
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FILE *input = NULL;
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struct db_context *db;
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char *dbfile = NULL;
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int ret = 0;
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if (c->display_usage) {
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d_printf("%s\n%s",
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_("Usage:"),
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_("net idmap restore [<inputfile>]\n"
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" Restore ID mappings from file\n"
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" inputfile\tFile to load ID mappings from. If not "
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"given, load data from stdin.\n"));
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return 0;
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}
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mem_ctx = talloc_stackframe();
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if (strequal(lp_idmap_backend(), "tdb")) {
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dbfile = state_path("winbindd_idmap.tdb");
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if (dbfile == NULL) {
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d_fprintf(stderr, _("Out of memory!\n"));
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return -1;
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}
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} else if (strequal(lp_idmap_backend(), "tdb2")) {
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dbfile = lp_parm_talloc_string(-1, "tdb", "idmap2.tdb", NULL);
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if (dbfile == NULL) {
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dbfile = talloc_asprintf(mem_ctx, "%s/idmap2.tdb",
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lp_private_dir());
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}
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} else {
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char *backend, *args;
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backend = talloc_strdup(mem_ctx, lp_idmap_backend());
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args = strchr(backend, ':');
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if (args != NULL) {
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*args = '\0';
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}
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d_printf(_("Sorry, 'net idmap restore' is currently not "
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"supported for idmap backend = %s.\n"
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"Only tdb and tdb2 are supported.\n"),
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backend);
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ret = -1;
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goto done;
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}
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d_fprintf(stderr, _("restoring id mapping to %s data base in '%s'\n"),
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lp_idmap_backend(), dbfile);
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if (argc == 1) {
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input = fopen(argv[0], "r");
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} else {
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input = stdin;
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}
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db = db_open(mem_ctx, dbfile, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0644);
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if (db == NULL) {
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d_fprintf(stderr, _("Could not open idmap db (%s): %s\n"),
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dbfile, strerror(errno));
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ret = -1;
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goto done;
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}
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if (db->transaction_start(db) != 0) {
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d_fprintf(stderr, _("Failed to start transaction.\n"));
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ret = -1;
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goto done;
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}
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while (!feof(input)) {
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char line[128], sid_string[128];
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int len;
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unsigned long idval;
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if (fgets(line, 127, input) == NULL)
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break;
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len = strlen(line);
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if ( (len > 0) && (line[len-1] == '\n') )
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line[len-1] = '\0';
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if (sscanf(line, "GID %lu %128s", &idval, sid_string) == 2)
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{
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ret = net_idmap_store_id_mapping(db, ID_TYPE_GID,
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idval, sid_string);
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if (ret != 0) {
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break;
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}
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} else if (sscanf(line, "UID %lu %128s", &idval, sid_string) == 2)
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{
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ret = net_idmap_store_id_mapping(db, ID_TYPE_UID,
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idval, sid_string);
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if (ret != 0) {
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break;
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}
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} else if (sscanf(line, "USER HWM %lu", &idval) == 1) {
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ret = dbwrap_store_int32(db, "USER HWM", idval);
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if (ret != 0) {
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d_fprintf(stderr, _("Could not store USER HWM.\n"));
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break;
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}
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} else if (sscanf(line, "GROUP HWM %lu", &idval) == 1) {
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ret = dbwrap_store_int32(db, "GROUP HWM", idval);
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if (ret != 0) {
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d_fprintf(stderr,
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_("Could not store GROUP HWM.\n"));
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break;
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}
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} else {
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d_fprintf(stderr, _("ignoring invalid line [%s]\n"),
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line);
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continue;
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}
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}
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if (ret == 0) {
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if(db->transaction_commit(db) != 0) {
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d_fprintf(stderr, _("Failed to commit transaction.\n"));
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ret = -1;
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}
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} else {
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if (db->transaction_cancel(db) != 0) {
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d_fprintf(stderr, _("Failed to cancel transaction.\n"));
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}
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}
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done:
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if ((input != NULL) && (input != stdin)) {
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fclose(input);
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}
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talloc_free(mem_ctx);
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return ret;
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}
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/***********************************************************
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Delete a SID mapping from a winbindd_idmap.tdb
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**********************************************************/
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static int net_idmap_delete(struct net_context *c, int argc, const char **argv)
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{
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d_printf("%s\n", _("Not implemented yet"));
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return -1;
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}
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static int net_idmap_set(struct net_context *c, int argc, const char **argv)
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{
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d_printf("%s\n", _("Not implemented yet"));
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return -1;
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}
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bool idmap_store_secret(const char *backend, bool alloc,
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const char *domain, const char *identity,
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const char *secret)
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{
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char *tmp;
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int r;
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bool ret;
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if (alloc) {
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r = asprintf(&tmp, "IDMAP_ALLOC_%s", backend);
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} else {
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r = asprintf(&tmp, "IDMAP_%s_%s", backend, domain);
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}
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if (r < 0) return false;
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strupper_m(tmp); /* make sure the key is case insensitive */
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ret = secrets_store_generic(tmp, identity, secret);
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free(tmp);
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return ret;
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}
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static int net_idmap_secret(struct net_context *c, int argc, const char **argv)
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{
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TALLOC_CTX *ctx;
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const char *secret;
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const char *dn;
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char *domain;
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char *backend;
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char *opt = NULL;
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bool ret;
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if (argc != 2 || c->display_usage) {
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d_printf("%s\n%s",
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_("Usage:\n"),
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_("net idmap secret <DOMAIN> <secret>\n"
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" Set the secret for the specified domain\n"
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" DOMAIN\tDomain to set secret for.\n"
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" secret\tNew secret to set.\n"));
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return c->display_usage?0:-1;
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}
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secret = argv[1];
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ctx = talloc_new(NULL);
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ALLOC_CHECK(ctx);
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domain = talloc_strdup(ctx, argv[0]);
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ALLOC_CHECK(domain);
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opt = talloc_asprintf(ctx, "idmap config %s", domain);
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ALLOC_CHECK(opt);
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backend = talloc_strdup(ctx, lp_parm_const_string(-1, opt, "backend", "tdb"));
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ALLOC_CHECK(backend);
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if ( ( ! backend) || ( ! strequal(backend, "ldap"))) {
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d_fprintf(stderr,
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_("The only currently supported backend is LDAP\n"));
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talloc_free(ctx);
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return -1;
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}
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dn = lp_parm_const_string(-1, opt, "ldap_user_dn", NULL);
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if ( ! dn) {
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d_fprintf(stderr,
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_("Missing ldap_user_dn option for domain %s\n"),
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domain);
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talloc_free(ctx);
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return -1;
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}
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ret = idmap_store_secret("ldap", false, domain, dn, secret);
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if ( ! ret) {
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d_fprintf(stderr, _("Failed to store secret\n"));
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talloc_free(ctx);
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return -1;
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}
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d_printf(_("Secret stored\n"));
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return 0;
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}
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int net_help_idmap(struct net_context *c, int argc, const char **argv)
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{
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d_printf(_("net idmap dump <inputfile>\n"
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" Dump current id mapping\n"));
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d_printf(_("net idmap restore\n"
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" Restore entries from stdin\n"));
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/* Deliberately *not* document net idmap delete */
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d_printf(_("net idmap secret <DOMAIN>|alloc <secret>\n"
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" Set the secret for the specified DOMAIN (or the alloc "
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"module)\n"));
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return -1;
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}
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static int net_idmap_aclmapset(struct net_context *c, int argc, const char **argv)
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{
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TALLOC_CTX *mem_ctx;
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int result = -1;
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struct dom_sid src_sid, dst_sid;
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char *src, *dst;
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struct db_context *db;
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struct db_record *rec;
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NTSTATUS status;
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if (argc != 3 || c->display_usage) {
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d_fprintf(stderr, "%s net idmap aclmapset <tdb> "
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"<src-sid> <dst-sid>\n", _("Usage:"));
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return -1;
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}
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if (!(mem_ctx = talloc_init("net idmap aclmapset"))) {
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d_fprintf(stderr, _("talloc_init failed\n"));
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return -1;
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}
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if (!(db = db_open(mem_ctx, argv[0], 0, TDB_DEFAULT,
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O_RDWR|O_CREAT, 0600))) {
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d_fprintf(stderr, _("db_open failed: %s\n"), strerror(errno));
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goto fail;
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}
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if (!string_to_sid(&src_sid, argv[1])) {
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d_fprintf(stderr, _("%s is not a valid sid\n"), argv[1]);
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goto fail;
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}
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if (!string_to_sid(&dst_sid, argv[2])) {
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d_fprintf(stderr, _("%s is not a valid sid\n"), argv[2]);
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goto fail;
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}
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if (!(src = sid_string_talloc(mem_ctx, &src_sid))
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|| !(dst = sid_string_talloc(mem_ctx, &dst_sid))) {
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d_fprintf(stderr, _("talloc_strdup failed\n"));
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goto fail;
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}
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if (!(rec = db->fetch_locked(
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db, mem_ctx, string_term_tdb_data(src)))) {
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d_fprintf(stderr, _("could not fetch db record\n"));
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goto fail;
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}
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status = rec->store(rec, string_term_tdb_data(dst), 0);
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TALLOC_FREE(rec);
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if (!NT_STATUS_IS_OK(status)) {
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d_fprintf(stderr, _("could not store record: %s\n"),
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nt_errstr(status));
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goto fail;
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}
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result = 0;
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fail:
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TALLOC_FREE(mem_ctx);
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return result;
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}
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/***********************************************************
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Look at the current idmap
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**********************************************************/
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int net_idmap(struct net_context *c, int argc, const char **argv)
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{
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struct functable func[] = {
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{
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"dump",
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net_idmap_dump,
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NET_TRANSPORT_LOCAL,
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N_("Dump the current ID mappings"),
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N_("net idmap dump\n"
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" Dump the current ID mappings")
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},
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{
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"restore",
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net_idmap_restore,
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NET_TRANSPORT_LOCAL,
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N_("Restore entries from stdin"),
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N_("net idmap restore\n"
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" Restore entries from stdin")
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},
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{
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"setmap",
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net_idmap_set,
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NET_TRANSPORT_LOCAL,
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N_("Not implemented yet"),
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N_("net idmap setmap\n"
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" Not implemented yet")
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},
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{
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"delete",
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net_idmap_delete,
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NET_TRANSPORT_LOCAL,
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N_("Not implemented yet"),
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N_("net idmap delete\n"
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" Not implemented yet")
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},
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{
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"secret",
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net_idmap_secret,
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NET_TRANSPORT_LOCAL,
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N_("Set secret for specified domain"),
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N_("net idmap secret {<DOMAIN>|alloc} <secret>\n"
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" Set secret for specified domain or alloc module")
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},
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{
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"aclmapset",
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net_idmap_aclmapset,
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NET_TRANSPORT_LOCAL,
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N_("Set acl map"),
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N_("net idmap aclmapset\n"
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" Set acl map")
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},
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{NULL, NULL, 0, NULL, NULL}
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};
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return net_run_function(c, argc, argv, "net idmap", func);
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}
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