mirror of
https://github.com/samba-team/samba.git
synced 2024-12-24 21:34:56 +03:00
08591d0095
metze
(This used to be commit dc9a3f8db0
)
379 lines
9.0 KiB
C
379 lines
9.0 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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#include "includes.h"
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#include "utils/net.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(TDB_CONTEXT *tdb,
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TDB_DATA key,
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TDB_DATA data,
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void *unused)
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{
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if (strcmp((char *)key.dptr, "USER HWM") == 0) {
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printf("USER HWM %d\n", IVAL(data.dptr,0));
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return 0;
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}
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if (strcmp((char *)key.dptr, "GROUP HWM") == 0) {
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printf("GROUP HWM %d\n", IVAL(data.dptr,0));
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return 0;
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}
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if (strncmp((char *)key.dptr, "S-", 2) != 0)
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return 0;
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printf("%s %s\n", data.dptr, 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(int argc, const char **argv)
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{
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TDB_CONTEXT *idmap_tdb;
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if ( argc != 1 )
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return net_help_idmap( argc, argv );
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idmap_tdb = tdb_open_log(argv[0], 0, TDB_DEFAULT, O_RDONLY, 0);
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if (idmap_tdb == NULL) {
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d_fprintf(stderr, "Could not open idmap: %s\n", argv[0]);
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return -1;
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}
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tdb_traverse(idmap_tdb, net_idmap_dump_one_entry, NULL);
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tdb_close(idmap_tdb);
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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_restore(int argc, const char **argv)
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{
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TALLOC_CTX *ctx;
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FILE *input;
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if (! winbind_ping()) {
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d_fprintf(stderr, "To use net idmap Winbindd must be running.\n");
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return -1;
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}
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ctx = talloc_new(NULL);
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ALLOC_CHECK(ctx);
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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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while (!feof(input)) {
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char line[128], sid_string[128];
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int len;
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struct wbcDomainSid sid;
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enum id_type type = ID_TYPE_NOT_SPECIFIED;
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unsigned long idval;
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wbcErr wbc_status;
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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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type = ID_TYPE_GID;
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} else if (sscanf(line, "UID %lu %128s", &idval, sid_string) == 2) {
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type = ID_TYPE_UID;
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} else if (sscanf(line, "USER HWM %lu", &idval) == 1) {
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/* set uid hwm */
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wbc_status = wbcSetUidHwm(idval);
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if (!WBC_ERROR_IS_OK(wbc_status)) {
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d_fprintf(stderr, "Could not set USER HWM: %s\n",
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wbcErrorString(wbc_status));
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}
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continue;
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} else if (sscanf(line, "GROUP HWM %lu", &idval) == 1) {
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/* set gid hwm */
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wbc_status = wbcSetGidHwm(idval);
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if (!WBC_ERROR_IS_OK(wbc_status)) {
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d_fprintf(stderr, "Could not set GROUP HWM: %s\n",
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wbcErrorString(wbc_status));
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}
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continue;
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} else {
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d_fprintf(stderr, "ignoring invalid line [%s]\n", line);
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continue;
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}
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wbc_status = wbcStringToSid(sid_string, &sid);
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if (!WBC_ERROR_IS_OK(wbc_status)) {
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d_fprintf(stderr, "ignoring invalid sid [%s]: %s\n",
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sid_string, wbcErrorString(wbc_status));
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continue;
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}
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if (type == ID_TYPE_UID) {
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wbc_status = wbcSetUidMapping(idval, &sid);
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} else {
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wbc_status = wbcSetGidMapping(idval, &sid);
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}
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if (!WBC_ERROR_IS_OK(wbc_status)) {
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d_fprintf(stderr, "Could not set mapping of %s %lu to sid %s: %s\n",
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(type == ID_TYPE_GID) ? "GID" : "UID",
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idval, sid_string,
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wbcErrorString(wbc_status));
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continue;
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}
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}
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if (input != stdin) {
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fclose(input);
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}
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talloc_free(ctx);
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return 0;
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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(int argc, const char **argv)
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{
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d_printf("Not Implemented yet\n");
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return -1;
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}
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static int net_idmap_set(int argc, const char **argv)
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{
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d_printf("Not Implemented yet\n");
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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(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) {
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return net_help_idmap(argc, argv);
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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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if (strcmp(argv[0], "alloc") == 0) {
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domain = NULL;
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backend = lp_idmap_alloc_backend();
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} else {
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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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}
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if ( ( ! backend) || ( ! strequal(backend, "ldap"))) {
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d_fprintf(stderr, "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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if (domain) {
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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, "Missing ldap_user_dn option for domain %s\n", 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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} else {
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dn = lp_parm_const_string(-1, "idmap alloc config", "ldap_user_dn", NULL);
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if ( ! dn) {
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d_fprintf(stderr, "Missing ldap_user_dn option for alloc backend\n");
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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", true, NULL, dn, secret);
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}
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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(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 module)\n");
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return -1;
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}
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static int net_idmap_aclmapset(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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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) {
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d_fprintf(stderr, "usage: net idmap aclmapset <tdb> "
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"<src-sid> <dst-sid>\n");
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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(int argc, const char **argv)
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{
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struct functable func[] = {
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{"dump", net_idmap_dump},
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{"restore", net_idmap_restore},
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{"setmap", net_idmap_set },
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{"delete", net_idmap_delete},
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{"secret", net_idmap_secret},
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{"aclmapset", net_idmap_aclmapset},
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{"help", net_help_idmap},
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{NULL, NULL}
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};
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return net_run_function(argc, argv, func, net_help_idmap);
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}
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