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c2e2857db4
PDB modules store domain sid and guid in secrets.tdb to cooperate with other parts of smbd. If PDB module is built outside Samba source code it has to be linked against internal libsecrets. Wrap required secrets_* calls to avoid direct linking. libpdb is linked against libsecrets by itself and this is enough.
172 lines
4.5 KiB
C
172 lines
4.5 KiB
C
/*
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Unix SMB/CIFS implementation.
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Copyright (C) Andrew Tridgell 1992-2001
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Copyright (C) Andrew Bartlett 2002
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Copyright (C) Rafal Szczesniak 2002
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Copyright (C) Tim Potter 2001
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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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/* the Samba secrets database stores any generated, private information
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such as the local SID and machine trust password */
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#include "includes.h"
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#include "passdb.h"
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#include "passdb/pdb_secrets.h"
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#include "librpc/gen_ndr/ndr_secrets.h"
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#include "secrets.h"
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#include "dbwrap/dbwrap.h"
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#include "dbwrap/dbwrap_open.h"
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#include "../libcli/security/security.h"
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#include "util_tdb.h"
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_PASSDB
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/**
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* Get trusted domains info from secrets.tdb.
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**/
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struct list_trusted_domains_state {
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uint32 num_domains;
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struct trustdom_info **domains;
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};
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static int list_trusted_domain(struct db_record *rec, void *private_data)
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{
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const size_t prefix_len = strlen(SECRETS_DOMTRUST_ACCT_PASS);
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struct TRUSTED_DOM_PASS pass;
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enum ndr_err_code ndr_err;
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DATA_BLOB blob;
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struct trustdom_info *dom_info;
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TDB_DATA key;
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TDB_DATA value;
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struct list_trusted_domains_state *state =
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(struct list_trusted_domains_state *)private_data;
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key = dbwrap_record_get_key(rec);
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value = dbwrap_record_get_value(rec);
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if ((key.dsize < prefix_len)
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|| (strncmp((char *)key.dptr, SECRETS_DOMTRUST_ACCT_PASS,
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prefix_len) != 0)) {
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return 0;
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}
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blob = data_blob_const(value.dptr, value.dsize);
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ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &pass,
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(ndr_pull_flags_fn_t)ndr_pull_TRUSTED_DOM_PASS);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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return false;
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}
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if (pass.domain_sid.num_auths != 4) {
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DEBUG(0, ("SID %s is not a domain sid, has %d "
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"auths instead of 4\n",
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sid_string_dbg(&pass.domain_sid),
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pass.domain_sid.num_auths));
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return 0;
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}
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if (!(dom_info = talloc(state->domains, struct trustdom_info))) {
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DEBUG(0, ("talloc failed\n"));
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return 0;
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}
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dom_info->name = talloc_strdup(dom_info, pass.uni_name);
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if (!dom_info->name) {
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TALLOC_FREE(dom_info);
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return 0;
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}
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sid_copy(&dom_info->sid, &pass.domain_sid);
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ADD_TO_ARRAY(state->domains, struct trustdom_info *, dom_info,
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&state->domains, &state->num_domains);
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if (state->domains == NULL) {
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state->num_domains = 0;
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return -1;
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}
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return 0;
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}
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NTSTATUS secrets_trusted_domains(TALLOC_CTX *mem_ctx, uint32 *num_domains,
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struct trustdom_info ***domains)
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{
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struct list_trusted_domains_state state;
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struct db_context *db_ctx;
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if (!secrets_init()) {
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return NT_STATUS_ACCESS_DENIED;
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}
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db_ctx = secrets_db_ctx();
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state.num_domains = 0;
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/*
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* Make sure that a talloc context for the trustdom_info structs
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* exists
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*/
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if (!(state.domains = talloc_array(
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mem_ctx, struct trustdom_info *, 1))) {
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return NT_STATUS_NO_MEMORY;
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}
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dbwrap_traverse_read(db_ctx, list_trusted_domain, (void *)&state, NULL);
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*num_domains = state.num_domains;
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*domains = state.domains;
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return NT_STATUS_OK;
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}
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/* In order to avoid direct linking against libsecrets for pdb modules
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* following helpers are provided for pdb module writers.
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* To differentiate them from pdb_* API, they are prefixed by PDB upper case
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*/
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bool PDB_secrets_store_domain_sid(const char *domain, const struct dom_sid *sid)
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{
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return secrets_store_domain_sid(domain, sid);
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}
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bool PDB_secrets_mark_domain_protected(const char *domain)
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{
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return secrets_mark_domain_protected(domain);
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}
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bool PDB_secrets_clear_domain_protection(const char *domain)
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{
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return secrets_clear_domain_protection(domain);
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}
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bool PDB_secrets_fetch_domain_sid(const char *domain, struct dom_sid *sid)
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{
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return secrets_fetch_domain_sid(domain, sid);
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}
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bool PDB_secrets_store_domain_guid(const char *domain, struct GUID *guid)
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{
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return secrets_store_domain_guid(domain, guid);
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}
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bool PDB_secrets_fetch_domain_guid(const char *domain, struct GUID *guid)
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{
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return secrets_fetch_domain_guid(domain, guid);
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}
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