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|
/*
Unix SMB/CIFS implementation.
Winbind rpc backend functions
Copyright (C) Tim Potter 2000-2001,2003
Copyright (C) Simo Sorce 2003
Copyright (C) Volker Lendecke 2004
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "winbindd.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
/* Query display info for a domain. This returns enough information plus a
bit extra to give an overview of domain users for the User Manager
application. */
static NTSTATUS query_user_list(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *num_entries,
WINBIND_USERINFO **info)
{
/* We don't have users */
*num_entries = 0;
*info = NULL;
return NT_STATUS_OK;
}
/* list all domain groups */
static NTSTATUS enum_dom_groups(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *num_entries,
struct acct_info **info)
{
/* We don't have domain groups */
*num_entries = 0;
*info = NULL;
return NT_STATUS_OK;
}
/* List all domain groups */
static NTSTATUS enum_local_groups(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *num_entries,
struct acct_info **info)
{
struct pdb_search *search;
struct samr_displayentry *aliases;
int i;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
search = pdb_search_aliases(&domain->sid);
if (search == NULL) goto done;
*num_entries = pdb_search_entries(search, 0, 0xffffffff, &aliases);
if (*num_entries == 0) goto done;
*info = TALLOC_ARRAY(mem_ctx, struct acct_info, *num_entries);
if (*info == NULL) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
for (i=0; i<*num_entries; i++) {
fstrcpy((*info)[i].acct_name, aliases[i].account_name);
fstrcpy((*info)[i].acct_desc, aliases[i].description);
(*info)[i].rid = aliases[i].rid;
}
result = NT_STATUS_OK;
done:
pdb_search_destroy(search);
return result;
}
/* convert a single name to a sid in a domain */
static NTSTATUS name_to_sid(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
const char *domain_name,
const char *name,
DOM_SID *sid,
enum lsa_SidType *type)
{
DEBUG(10, ("Finding name %s\n", name));
if ( !lookup_name( mem_ctx, name, LOOKUP_NAME_ALL,
NULL, NULL, sid, type ) )
{
return NT_STATUS_NONE_MAPPED;
}
return NT_STATUS_OK;
}
/*
convert a domain SID to a user or group name
*/
static NTSTATUS sid_to_name(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
const DOM_SID *sid,
char **domain_name,
char **name,
enum lsa_SidType *type)
{
const char *dom, *nam;
DEBUG(10, ("Converting SID %s\n", sid_string_static(sid)));
/* Paranoia check */
if (!sid_check_is_in_builtin(sid) &&
!sid_check_is_in_our_domain(sid) &&
!sid_check_is_in_unix_users(sid) &&
!sid_check_is_unix_users(sid) &&
!sid_check_is_in_unix_groups(sid) &&
!sid_check_is_unix_groups(sid) )
{
DEBUG(0, ("Possible deadlock: Trying to lookup SID %s with "
"passdb backend\n", sid_string_static(sid)));
return NT_STATUS_NONE_MAPPED;
}
if (!lookup_sid(mem_ctx, sid, &dom, &nam, type)) {
return NT_STATUS_NONE_MAPPED;
}
*domain_name = talloc_strdup(mem_ctx, dom);
*name = talloc_strdup(mem_ctx, nam);
return NT_STATUS_OK;
}
static NTSTATUS rids_to_names(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
const DOM_SID *sid,
uint32 *rids,
size_t num_rids,
char **domain_name,
char ***names,
enum lsa_SidType **types)
{
return NT_STATUS_UNSUCCESSFUL;
}
/* Lookup user information from a rid or username. */
static NTSTATUS query_user(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
const DOM_SID *user_sid,
WINBIND_USERINFO *user_info)
{
return NT_STATUS_NO_SUCH_USER;
}
/* Lookup groups a user is a member of. I wish Unix had a call like this! */
static NTSTATUS lookup_usergroups(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
const DOM_SID *user_sid,
uint32 *num_groups, DOM_SID **user_gids)
{
NTSTATUS result;
DOM_SID *groups = NULL;
gid_t *gids = NULL;
size_t ngroups = 0;
struct samu *user;
if ( (user = samu_new(mem_ctx)) == NULL ) {
return NT_STATUS_NO_MEMORY;
}
if ( !pdb_getsampwsid( user, user_sid ) ) {
return NT_STATUS_NO_SUCH_USER;
}
result = pdb_enum_group_memberships( mem_ctx, user, &groups, &gids, &ngroups );
TALLOC_FREE( user );
*num_groups = (uint32)ngroups;
*user_gids = groups;
return result;
}
static NTSTATUS lookup_useraliases(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 num_sids, const DOM_SID *sids,
uint32 *p_num_aliases, uint32 **rids)
{
NTSTATUS result;
size_t num_aliases = 0;
result = pdb_enum_alias_memberships(mem_ctx, &domain->sid,
sids, num_sids, rids, &num_aliases);
*p_num_aliases = num_aliases;
return result;
}
/* Lookup group membership given a rid. */
static NTSTATUS lookup_groupmem(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
const DOM_SID *group_sid, uint32 *num_names,
DOM_SID **sid_mem, char ***names,
uint32 **name_types)
{
size_t i, num_members, num_mapped;
uint32 *rids;
NTSTATUS result;
const DOM_SID **sids;
struct lsa_dom_info *lsa_domains;
struct lsa_name_info *lsa_names;
TALLOC_CTX *tmp_ctx;
if (!sid_check_is_in_our_domain(group_sid)) {
/* There's no groups, only aliases in BUILTIN */
return NT_STATUS_NO_SUCH_GROUP;
}
if (!(tmp_ctx = talloc_init("lookup_groupmem"))) {
return NT_STATUS_NO_MEMORY;
}
result = pdb_enum_group_members(tmp_ctx, group_sid, &rids,
&num_members);
if (!NT_STATUS_IS_OK(result)) {
TALLOC_FREE(tmp_ctx);
return result;
}
if (num_members == 0) {
*num_names = 0;
*sid_mem = NULL;
*names = NULL;
*name_types = NULL;
TALLOC_FREE(tmp_ctx);
return NT_STATUS_OK;
}
*sid_mem = TALLOC_ARRAY(mem_ctx, DOM_SID, num_members);
*names = TALLOC_ARRAY(mem_ctx, char *, num_members);
*name_types = TALLOC_ARRAY(mem_ctx, uint32, num_members);
sids = TALLOC_ARRAY(tmp_ctx, const DOM_SID *, num_members);
if (((*sid_mem) == NULL) || ((*names) == NULL) ||
((*name_types) == NULL) || (sids == NULL)) {
TALLOC_FREE(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
/*
* Prepare an array of sid pointers for the lookup_sids calling
* convention.
*/
for (i=0; i<num_members; i++) {
DOM_SID *sid = &((*sid_mem)[i]);
if (!sid_compose(sid, &domain->sid, rids[i])) {
TALLOC_FREE(tmp_ctx);
return NT_STATUS_INTERNAL_ERROR;
}
sids[i] = sid;
}
result = lookup_sids(tmp_ctx, num_members, sids, 1,
&lsa_domains, &lsa_names);
if (!NT_STATUS_IS_OK(result)) {
TALLOC_FREE(tmp_ctx);
return result;
}
num_mapped = 0;
for (i=0; i<num_members; i++) {
if (lsa_names[i].type != SID_NAME_USER) {
DEBUG(2, ("Got %s as group member -- ignoring\n",
sid_type_lookup(lsa_names[i].type)));
continue;
}
if (!((*names)[i] = talloc_strdup((*names),
lsa_names[i].name))) {
TALLOC_FREE(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
(*name_types)[i] = lsa_names[i].type;
num_mapped += 1;
}
*num_names = num_mapped;
TALLOC_FREE(tmp_ctx);
return NT_STATUS_OK;
}
/* find the sequence number for a domain */
static NTSTATUS sequence_number(struct winbindd_domain *domain, uint32 *seq)
{
BOOL result;
time_t seq_num;
result = pdb_get_seq_num(&seq_num);
if (!result) {
*seq = 1;
}
*seq = (int) seq_num;
/* *seq = 1; */
return NT_STATUS_OK;
}
static NTSTATUS lockout_policy(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
SAM_UNK_INFO_12 *policy)
{
/* actually we have that */
return NT_STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS password_policy(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
SAM_UNK_INFO_1 *policy)
{
uint32 min_pass_len,pass_hist,password_properties;
time_t u_expire, u_min_age;
NTTIME nt_expire, nt_min_age;
uint32 account_policy_temp;
if ((policy = TALLOC_ZERO_P(mem_ctx, SAM_UNK_INFO_1)) == NULL) {
return NT_STATUS_NO_MEMORY;
}
if (!pdb_get_account_policy(AP_MIN_PASSWORD_LEN, &account_policy_temp)) {
return NT_STATUS_ACCESS_DENIED;
}
min_pass_len = account_policy_temp;
if (!pdb_get_account_policy(AP_PASSWORD_HISTORY, &account_policy_temp)) {
return NT_STATUS_ACCESS_DENIED;
}
pass_hist = account_policy_temp;
if (!pdb_get_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, &account_policy_temp)) {
return NT_STATUS_ACCESS_DENIED;
}
password_properties = account_policy_temp;
if (!pdb_get_account_policy(AP_MAX_PASSWORD_AGE, &account_policy_temp)) {
return NT_STATUS_ACCESS_DENIED;
}
u_expire = account_policy_temp;
if (!pdb_get_account_policy(AP_MIN_PASSWORD_AGE, &account_policy_temp)) {
return NT_STATUS_ACCESS_DENIED;
}
u_min_age = account_policy_temp;
unix_to_nt_time_abs(&nt_expire, u_expire);
unix_to_nt_time_abs(&nt_min_age, u_min_age);
init_unk_info1(policy, (uint16)min_pass_len, (uint16)pass_hist,
password_properties, nt_expire, nt_min_age);
return NT_STATUS_OK;
}
/* get a list of trusted domains */
static NTSTATUS trusted_domains(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *num_domains,
char ***names,
char ***alt_names,
DOM_SID **dom_sids)
{
NTSTATUS nt_status;
struct trustdom_info **domains;
int i;
TALLOC_CTX *tmp_ctx;
*num_domains = 0;
*names = NULL;
*alt_names = NULL;
*dom_sids = NULL;
if (!(tmp_ctx = talloc_init("trusted_domains"))) {
return NT_STATUS_NO_MEMORY;
}
nt_status = pdb_enum_trusteddoms(tmp_ctx, num_domains, &domains);
if (!NT_STATUS_IS_OK(nt_status)) {
TALLOC_FREE(tmp_ctx);
return nt_status;
}
if (*num_domains) {
*names = TALLOC_ARRAY(mem_ctx, char *, *num_domains);
*alt_names = TALLOC_ARRAY(mem_ctx, char *, *num_domains);
*dom_sids = TALLOC_ARRAY(mem_ctx, DOM_SID, *num_domains);
if ((*alt_names == NULL) || (*names == NULL) || (*dom_sids == NULL)) {
TALLOC_FREE(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
} else {
*names = NULL;
*alt_names = NULL;
*dom_sids = NULL;
}
for (i=0; i<*num_domains; i++) {
(*alt_names)[i] = NULL;
if (!((*names)[i] = talloc_strdup((*names),
domains[i]->name))) {
TALLOC_FREE(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
sid_copy(&(*dom_sids)[i], &domains[i]->sid);
}
TALLOC_FREE(tmp_ctx);
return NT_STATUS_OK;
}
/* the rpc backend methods are exposed via this structure */
struct winbindd_methods passdb_methods = {
False,
query_user_list,
enum_dom_groups,
enum_local_groups,
name_to_sid,
sid_to_name,
rids_to_names,
query_user,
lookup_usergroups,
lookup_useraliases,
lookup_groupmem,
sequence_number,
lockout_policy,
password_policy,
trusted_domains,
};
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