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/*
Unix SMB/CIFS implementation.
Copyright (C) Andrew Tridgell 1992-2001
Copyright (C) Andrew Bartlett 2002
Copyright (C) Rafal Szczesniak 2002
Copyright (C) Tim Potter 2001
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/>.
*/
/* the Samba secrets database stores any generated, private information
such as the local SID and machine trust password */
#include "includes.h"
#include "passdb.h"
#include "passdb/pdb_secrets.h"
#include "librpc/gen_ndr/ndr_secrets.h"
#include "secrets.h"
#include "dbwrap/dbwrap.h"
#include "dbwrap/dbwrap_open.h"
#include "../libcli/security/security.h"
#include "util_tdb.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_PASSDB
/**
* Get trusted domains info from secrets.tdb.
**/
struct list_trusted_domains_state {
uint32_t num_domains;
struct trustdom_info **domains;
};
static int list_trusted_domain(struct db_record *rec, void *private_data)
{
const size_t prefix_len = strlen(SECRETS_DOMTRUST_ACCT_PASS);
struct TRUSTED_DOM_PASS pass;
enum ndr_err_code ndr_err;
DATA_BLOB blob;
struct trustdom_info *dom_info;
TDB_DATA key;
TDB_DATA value;
struct list_trusted_domains_state *state =
(struct list_trusted_domains_state *)private_data;
key = dbwrap_record_get_key(rec);
value = dbwrap_record_get_value(rec);
if ((key.dsize < prefix_len)
|| (strncmp((char *)key.dptr, SECRETS_DOMTRUST_ACCT_PASS,
prefix_len) != 0)) {
return 0;
}
blob = data_blob_const(value.dptr, value.dsize);
ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &pass,
(ndr_pull_flags_fn_t)ndr_pull_TRUSTED_DOM_PASS);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return false;
}
if (pass.domain_sid.num_auths != 4) {
struct dom_sid_buf buf;
DEBUG(0, ("SID %s is not a domain sid, has %d "
"auths instead of 4\n",
dom_sid_str_buf(&pass.domain_sid, &buf),
pass.domain_sid.num_auths));
return 0;
}
if (!(dom_info = talloc(state->domains, struct trustdom_info))) {
DEBUG(0, ("talloc failed\n"));
return 0;
}
dom_info->name = talloc_strdup(dom_info, pass.uni_name);
if (!dom_info->name) {
TALLOC_FREE(dom_info);
return 0;
}
sid_copy(&dom_info->sid, &pass.domain_sid);
ADD_TO_ARRAY(state->domains, struct trustdom_info *, dom_info,
&state->domains, &state->num_domains);
if (state->domains == NULL) {
state->num_domains = 0;
return -1;
}
return 0;
}
NTSTATUS secrets_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
struct trustdom_info ***domains)
{
struct list_trusted_domains_state state;
struct db_context *db_ctx;
if (!secrets_init()) {
return NT_STATUS_ACCESS_DENIED;
}
db_ctx = secrets_db_ctx();
state.num_domains = 0;
/*
* Make sure that a talloc context for the trustdom_info structs
* exists
*/
if (!(state.domains = talloc_array(
mem_ctx, struct trustdom_info *, 1))) {
return NT_STATUS_NO_MEMORY;
}
dbwrap_traverse_read(db_ctx, list_trusted_domain, (void *)&state, NULL);
*num_domains = state.num_domains;
*domains = state.domains;
return NT_STATUS_OK;
}
/* In order to avoid direct linking against libsecrets for pdb modules
* following helpers are provided for pdb module writers.
* To differentiate them from pdb_* API, they are prefixed by PDB upper case
*/
bool PDB_secrets_store_domain_sid(const char *domain, const struct dom_sid *sid)
{
return secrets_store_domain_sid(domain, sid);
}
bool PDB_secrets_mark_domain_protected(const char *domain)
{
return secrets_mark_domain_protected(domain);
}
bool PDB_secrets_clear_domain_protection(const char *domain)
{
return secrets_clear_domain_protection(domain);
}
bool PDB_secrets_fetch_domain_sid(const char *domain, struct dom_sid *sid)
{
return secrets_fetch_domain_sid(domain, sid);
}
bool PDB_secrets_store_domain_guid(const char *domain, struct GUID *guid)
{
return secrets_store_domain_guid(domain, guid);
}
bool PDB_secrets_fetch_domain_guid(const char *domain, struct GUID *guid)
{
return secrets_fetch_domain_guid(domain, guid);
}
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