void idmap_cache_set_sid2gid(const struct dom_sid *sid, gid_t gid)
{
time_t now = time(NULL);
time_t timeout;
fstring sidstr, key, value;
if (!is_null_sid(sid)) {
fstr_sprintf(key, "IDMAP/SID2GID/%s",
sid_to_fstring(sidstr, sid));
fstr_sprintf(value, "%d", (int)gid);
timeout = (gid == -1)
? lp_idmap_negative_cache_time()
: lp_idmap_cache_time();
gencache_set(key, value, now + timeout);
}
if (gid != -1) {
fstr_sprintf(key, "IDMAP/GID2SID/%d", (int)gid);
if (is_null_sid(sid)) {
/* negative gid mapping */
fstrcpy(value, "-");
timeout = lp_idmap_negative_cache_time();
}
else {
sid_to_fstring(value, sid);
timeout = lp_idmap_cache_time();
}
gencache_set(key, value, now + timeout);
}
}
NTSTATUS idmap_gid_to_sid(struct dom_sid *sid, gid_t gid)
{
NTSTATUS ret;
struct id_map map;
bool expired;
DEBUG(10, ("idmap_gid_to_sid: gid = [%lu]\n", (unsigned long)gid));
if (winbindd_use_idmap_cache()
&& idmap_cache_find_gid2sid(gid, sid, &expired)) {
DEBUG(10, ("idmap_cache_find_gid2sid found %u%s\n",
(unsigned int)gid,
expired ? " (expired)": ""));
if (expired && idmap_is_online()) {
DEBUG(10, ("revalidating expired entry\n"));
goto backend;
}
if (is_null_sid(sid)) {
DEBUG(10, ("Returning negative cache entry\n"));
return NT_STATUS_NONE_MAPPED;
}
DEBUG(10, ("Returning positive cache entry\n"));
return NT_STATUS_OK;
}
backend:
ZERO_STRUCT(map);
map.sid = sid;
map.xid.type = ID_TYPE_GID;
map.xid.id = gid;
ret = idmap_backends_unixid_to_sid(&map);
if ( ! NT_STATUS_IS_OK(ret)) {
DEBUG(10, ("error mapping gid [%lu]: %s\n", (unsigned long)gid,
nt_errstr(ret)));
map.status = ID_UNMAPPED;
}
if (map.status != ID_MAPPED) {
if (winbindd_use_idmap_cache()) {
struct dom_sid null_sid;
struct unixid id;
id.type = ID_TYPE_GID;
id.id = gid;
ZERO_STRUCT(null_sid);
idmap_cache_set_sid2unixid(&null_sid, &id);
}
DEBUG(10, ("gid [%lu] not mapped\n", (unsigned long)gid));
return NT_STATUS_NONE_MAPPED;
}
if (winbindd_use_idmap_cache()) {
idmap_cache_set_sid2unixid(sid, &map.xid);
}
return NT_STATUS_OK;
}
NTSTATUS idmap_gid_to_sid(const char *domname, DOM_SID *sid, gid_t gid)
{
NTSTATUS ret;
struct id_map map;
bool expired;
DEBUG(10,("idmap_gid_to_si: gid = [%lu], domain = '%s'\n",
(unsigned long)gid, domname?domname:"NULL"));
if (winbindd_use_idmap_cache()
&& idmap_cache_find_gid2sid(gid, sid, &expired)) {
DEBUG(10, ("idmap_cache_find_gid2sid found %d%s\n", gid,
expired ? " (expired)": ""));
if (expired && idmap_is_online()) {
DEBUG(10, ("revalidating expired entry\n"));
goto backend;
}
if (is_null_sid(sid)) {
DEBUG(10, ("Returning negative cache entry\n"));
return NT_STATUS_NONE_MAPPED;
}
DEBUG(10, ("Returning positive cache entry\n"));
return NT_STATUS_OK;
}
backend:
map.sid = sid;
map.xid.type = ID_TYPE_GID;
map.xid.id = gid;
ret = idmap_backends_unixid_to_sid(domname, &map);
if ( ! NT_STATUS_IS_OK(ret)) {
DEBUG(10, ("error mapping gid [%lu]\n", (unsigned long)gid));
return ret;
}
if (map.status != ID_MAPPED) {
if (winbindd_use_idmap_cache()) {
struct dom_sid null_sid;
ZERO_STRUCT(null_sid);
idmap_cache_set_sid2uid(&null_sid, gid);
}
DEBUG(10, ("gid [%lu] not mapped\n", (unsigned long)gid));
return NT_STATUS_NONE_MAPPED;
}
if (winbindd_use_idmap_cache()) {
idmap_cache_set_sid2gid(sid, gid);
}
return NT_STATUS_OK;
}
NTSTATUS samu_to_SamInfo3(TALLOC_CTX *mem_ctx,
struct samu *samu,
const char *login_server,
struct netr_SamInfo3 **_info3,
struct extra_auth_info *extra)
{
struct netr_SamInfo3 *info3;
const struct dom_sid *user_sid;
const struct dom_sid *group_sid;
struct dom_sid domain_sid;
struct dom_sid *group_sids;
uint32_t num_group_sids = 0;
const char *tmp;
gid_t *gids;
NTSTATUS status;
bool ok;
user_sid = pdb_get_user_sid(samu);
group_sid = pdb_get_group_sid(samu);
if (!user_sid || !group_sid) {
DEBUG(1, ("Sam account is missing sids!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
if (!info3) {
return NT_STATUS_NO_MEMORY;
}
ZERO_STRUCT(domain_sid);
/* check if this is a "Unix Users" domain user,
* we need to handle it in a special way if that's the case */
if (sid_check_is_in_unix_users(user_sid)) {
/* in info3 you can only set rids for the user and the
* primary group, and the domain sid must be that of
* the sam domain.
*
* Store a completely bogus value here.
* The real SID is stored in the extra sids.
* Other code will know to look there if (-1) is found
*/
info3->base.rid = (uint32_t)(-1);
sid_copy(&extra->user_sid, user_sid);
DEBUG(10, ("Unix User found in struct samu. Rid marked as "
"special and sid (%s) saved as extra sid\n",
sid_string_dbg(user_sid)));
} else {
sid_copy(&domain_sid, user_sid);
sid_split_rid(&domain_sid, &info3->base.rid);
}
if (is_null_sid(&domain_sid)) {
sid_copy(&domain_sid, get_global_sam_sid());
}
/* check if this is a "Unix Groups" domain group,
* if so we need special handling */
if (sid_check_is_in_unix_groups(group_sid)) {
/* in info3 you can only set rids for the user and the
* primary group, and the domain sid must be that of
* the sam domain.
*
* Store a completely bogus value here.
* The real SID is stored in the extra sids.
* Other code will know to look there if (-1) is found
*/
info3->base.primary_gid = (uint32_t)(-1);
sid_copy(&extra->pgid_sid, group_sid);
DEBUG(10, ("Unix Group found in struct samu. Rid marked as "
"special and sid (%s) saved as extra sid\n",
sid_string_dbg(group_sid)));
} else {
ok = sid_peek_check_rid(&domain_sid, group_sid,
&info3->base.primary_gid);
if (!ok) {
DEBUG(1, ("The primary group domain sid(%s) does not "
"match the domain sid(%s) for %s(%s)\n",
sid_string_dbg(group_sid),
sid_string_dbg(&domain_sid),
pdb_get_username(samu),
sid_string_dbg(user_sid)));
TALLOC_FREE(info3);
return NT_STATUS_UNSUCCESSFUL;
}
}
unix_to_nt_time(&info3->base.last_logon, pdb_get_logon_time(samu));
unix_to_nt_time(&info3->base.last_logoff, get_time_t_max());
unix_to_nt_time(&info3->base.acct_expiry, get_time_t_max());
unix_to_nt_time(&info3->base.last_password_change,
pdb_get_pass_last_set_time(samu));
unix_to_nt_time(&info3->base.allow_password_change,
pdb_get_pass_can_change_time(samu));
unix_to_nt_time(&info3->base.force_password_change,
pdb_get_pass_must_change_time(samu));
tmp = pdb_get_username(samu);
if (tmp) {
info3->base.account_name.string = talloc_strdup(info3, tmp);
RET_NOMEM(info3->base.account_name.string);
}
tmp = pdb_get_fullname(samu);
if (tmp) {
info3->base.full_name.string = talloc_strdup(info3, tmp);
RET_NOMEM(info3->base.full_name.string);
}
tmp = pdb_get_logon_script(samu);
if (tmp) {
info3->base.logon_script.string = talloc_strdup(info3, tmp);
RET_NOMEM(info3->base.logon_script.string);
}
tmp = pdb_get_profile_path(samu);
if (tmp) {
info3->base.profile_path.string = talloc_strdup(info3, tmp);
RET_NOMEM(info3->base.profile_path.string);
}
tmp = pdb_get_homedir(samu);
if (tmp) {
info3->base.home_directory.string = talloc_strdup(info3, tmp);
RET_NOMEM(info3->base.home_directory.string);
}
tmp = pdb_get_dir_drive(samu);
if (tmp) {
info3->base.home_drive.string = talloc_strdup(info3, tmp);
RET_NOMEM(info3->base.home_drive.string);
}
info3->base.logon_count = pdb_get_logon_count(samu);
info3->base.bad_password_count = pdb_get_bad_password_count(samu);
info3->base.domain.string = talloc_strdup(info3,
pdb_get_domain(samu));
RET_NOMEM(info3->base.domain.string);
info3->base.domain_sid = dom_sid_dup(info3, &domain_sid);
RET_NOMEM(info3->base.domain_sid);
status = pdb_enum_group_memberships(mem_ctx, samu,
&group_sids, &gids,
&num_group_sids);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to get groups from sam account.\n"));
TALLOC_FREE(info3);
return status;
}
if (num_group_sids) {
status = group_sids_to_info3(info3, group_sids, num_group_sids);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(info3);
return status;
}
}
/* We don't need sids and gids after the conversion */
TALLOC_FREE(group_sids);
TALLOC_FREE(gids);
num_group_sids = 0;
/* FIXME: should we add other flags ? */
info3->base.user_flags = NETLOGON_EXTRA_SIDS;
if (login_server) {
info3->base.logon_server.string = talloc_strdup(info3, login_server);
RET_NOMEM(info3->base.logon_server.string);
}
info3->base.acct_flags = pdb_get_acct_ctrl(samu);
*_info3 = info3;
return NT_STATUS_OK;
}
/* Add a trusted domain to our list of domains */
static struct winbindd_domain *add_trusted_domain(const char *domain_name, const char *alt_name,
struct winbindd_methods *methods,
const struct dom_sid *sid)
{
struct winbindd_domain *domain;
const char *alternative_name = NULL;
char *idmap_config_option;
const char *param;
const char **ignored_domains, **dom;
ignored_domains = lp_parm_string_list(-1, "winbind", "ignore domains", NULL);
for (dom=ignored_domains; dom && *dom; dom++) {
if (gen_fnmatch(*dom, domain_name) == 0) {
DEBUG(2,("Ignoring domain '%s'\n", domain_name));
return NULL;
}
}
/* use alt_name if available to allow DNS lookups */
if (alt_name && *alt_name) {
alternative_name = alt_name;
}
/* We can't call domain_list() as this function is called from
init_domain_list() and we'll get stuck in a loop. */
for (domain = _domain_list; domain; domain = domain->next) {
if (strequal(domain_name, domain->name) ||
strequal(domain_name, domain->alt_name))
{
break;
}
if (alternative_name && *alternative_name)
{
if (strequal(alternative_name, domain->name) ||
strequal(alternative_name, domain->alt_name))
{
break;
}
}
if (sid)
{
if (is_null_sid(sid)) {
continue;
}
if (dom_sid_equal(sid, &domain->sid)) {
break;
}
}
}
if (domain != NULL) {
/*
* We found a match. Possibly update the SID
*/
if ((sid != NULL)
&& dom_sid_equal(&domain->sid, &global_sid_NULL)) {
sid_copy( &domain->sid, sid );
}
return domain;
}
/* Create new domain entry */
domain = talloc_zero(NULL, struct winbindd_domain);
if (domain == NULL) {
return NULL;
}
domain->children = talloc_zero_array(domain,
struct winbindd_child,
lp_winbind_max_domain_connections());
if (domain->children == NULL) {
TALLOC_FREE(domain);
return NULL;
}
domain->name = talloc_strdup(domain, domain_name);
if (domain->name == NULL) {
TALLOC_FREE(domain);
return NULL;
}
if (alternative_name) {
domain->alt_name = talloc_strdup(domain, alternative_name);
if (domain->alt_name == NULL) {
TALLOC_FREE(domain);
return NULL;
}
}
domain->methods = methods;
domain->backend = NULL;
domain->internal = is_internal_domain(sid);
domain->sequence_number = DOM_SEQUENCE_NONE;
domain->last_seq_check = 0;
domain->initialized = False;
domain->online = is_internal_domain(sid);
domain->check_online_timeout = 0;
domain->dc_probe_pid = (pid_t)-1;
if (sid) {
sid_copy(&domain->sid, sid);
}
/* Link to domain list */
DLIST_ADD_END(_domain_list, domain, struct winbindd_domain *);
wcache_tdc_add_domain( domain );
idmap_config_option = talloc_asprintf(talloc_tos(), "idmap config %s",
domain->name);
if (idmap_config_option == NULL) {
DEBUG(0, ("talloc failed, not looking for idmap config\n"));
goto done;
}
param = lp_parm_const_string(-1, idmap_config_option, "range", NULL);
DEBUG(10, ("%s : range = %s\n", idmap_config_option,
param ? param : "not defined"));
if (param != NULL) {
unsigned low_id, high_id;
if (sscanf(param, "%u - %u", &low_id, &high_id) != 2) {
DEBUG(1, ("invalid range syntax in %s: %s\n",
idmap_config_option, param));
goto done;
}
if (low_id > high_id) {
DEBUG(1, ("invalid range in %s: %s\n",
idmap_config_option, param));
goto done;
}
domain->have_idmap_config = true;
domain->id_range_low = low_id;
domain->id_range_high = high_id;
}
done:
DEBUG(2,("Added domain %s %s %s\n",
domain->name, domain->alt_name,
&domain->sid?sid_string_dbg(&domain->sid):""));
return domain;
}
/* Add a trusted domain out of a trusted domain cache
entry
*/
static struct winbindd_domain *
add_trusted_domain_from_tdc(const struct winbindd_tdc_domain *tdc)
{
struct winbindd_domain *domain;
const char *alternative_name = NULL;
const char **ignored_domains, **dom;
int role = lp_server_role();
const char *domain_name = tdc->domain_name;
const struct dom_sid *sid = &tdc->sid;
if (is_null_sid(sid)) {
sid = NULL;
}
ignored_domains = lp_parm_string_list(-1, "winbind", "ignore domains", NULL);
for (dom=ignored_domains; dom && *dom; dom++) {
if (gen_fnmatch(*dom, domain_name) == 0) {
DEBUG(2,("Ignoring domain '%s'\n", domain_name));
return NULL;
}
}
/* use alt_name if available to allow DNS lookups */
if (tdc->dns_name && *tdc->dns_name) {
alternative_name = tdc->dns_name;
}
/* We can't call domain_list() as this function is called from
init_domain_list() and we'll get stuck in a loop. */
for (domain = _domain_list; domain; domain = domain->next) {
if (strequal(domain_name, domain->name) ||
strequal(domain_name, domain->alt_name))
{
break;
}
if (alternative_name) {
if (strequal(alternative_name, domain->name) ||
strequal(alternative_name, domain->alt_name))
{
break;
}
}
if (sid != NULL) {
if (dom_sid_equal(sid, &domain->sid)) {
break;
}
}
}
if (domain != NULL) {
/*
* We found a match on domain->name or
* domain->alt_name. Possibly update the SID
* if the stored SID was the NULL SID
* and return the matching entry.
*/
if ((sid != NULL)
&& dom_sid_equal(&domain->sid, &global_sid_NULL)) {
sid_copy( &domain->sid, sid );
}
return domain;
}
/* Create new domain entry */
domain = talloc_zero(NULL, struct winbindd_domain);
if (domain == NULL) {
return NULL;
}
domain->children = talloc_zero_array(domain,
struct winbindd_child,
lp_winbind_max_domain_connections());
if (domain->children == NULL) {
TALLOC_FREE(domain);
return NULL;
}
domain->name = talloc_strdup(domain, domain_name);
if (domain->name == NULL) {
TALLOC_FREE(domain);
return NULL;
}
if (alternative_name) {
domain->alt_name = talloc_strdup(domain, alternative_name);
if (domain->alt_name == NULL) {
TALLOC_FREE(domain);
return NULL;
}
}
domain->backend = NULL;
domain->internal = is_internal_domain(sid);
domain->sequence_number = DOM_SEQUENCE_NONE;
domain->last_seq_check = 0;
domain->initialized = false;
domain->online = is_internal_domain(sid);
domain->check_online_timeout = 0;
domain->dc_probe_pid = (pid_t)-1;
if (sid != NULL) {
sid_copy(&domain->sid, sid);
}
domain->domain_flags = tdc->trust_flags;
domain->domain_type = tdc->trust_type;
domain->domain_trust_attribs = tdc->trust_attribs;
/* Is this our primary domain ? */
if (strequal(domain_name, get_global_sam_name()) &&
(role != ROLE_DOMAIN_MEMBER)) {
domain->primary = true;
} else if (strequal(domain_name, lp_workgroup()) &&
(role == ROLE_DOMAIN_MEMBER)) {
domain->primary = true;
}
if (domain->primary) {
if (role == ROLE_ACTIVE_DIRECTORY_DC) {
domain->active_directory = true;
}
if (lp_security() == SEC_ADS) {
domain->active_directory = true;
}
} else if (!domain->internal) {
if (domain->domain_type == LSA_TRUST_TYPE_UPLEVEL) {
domain->active_directory = true;
}
}
/* Link to domain list */
DLIST_ADD_END(_domain_list, domain);
wcache_tdc_add_domain( domain );
setup_domain_child(domain);
DEBUG(2,
("Added domain %s %s %s\n", domain->name, domain->alt_name,
!is_null_sid(&domain->sid) ? sid_string_dbg(&domain->sid) : ""));
return domain;
}
NTSTATUS passwd_to_SamInfo3(TALLOC_CTX *mem_ctx,
const char *unix_username,
const struct passwd *pwd,
struct netr_SamInfo3 **pinfo3,
struct extra_auth_info *extra)
{
struct netr_SamInfo3 *info3;
NTSTATUS status;
TALLOC_CTX *tmp_ctx;
const char *domain_name = NULL;
const char *user_name = NULL;
struct dom_sid domain_sid;
struct dom_sid user_sid;
struct dom_sid group_sid;
enum lsa_SidType type;
uint32_t num_sids = 0;
struct dom_sid *user_sids = NULL;
bool is_null;
bool ok;
tmp_ctx = talloc_stackframe();
ok = lookup_name_smbconf(tmp_ctx,
unix_username,
LOOKUP_NAME_ALL,
&domain_name,
&user_name,
&user_sid,
&type);
if (!ok) {
status = NT_STATUS_NO_SUCH_USER;
goto done;
}
if (type != SID_NAME_USER) {
status = NT_STATUS_NO_SUCH_USER;
goto done;
}
ok = winbind_lookup_usersids(tmp_ctx,
&user_sid,
&num_sids,
&user_sids);
/* Check if winbind is running */
if (ok) {
/*
* Winbind is running and the first element of the user_sids
* is the primary group.
*/
if (num_sids > 0) {
group_sid = user_sids[0];
}
} else {
/*
* Winbind is not running, try to create the group_sid from the
* passwd group id.
*/
/*
* This can lead to a primary group of S-1-22-2-XX which
* will be rejected by other Samba code.
*/
gid_to_sid(&group_sid, pwd->pw_gid);
}
/*
* If we are a unix group, or a wellknown/builtin alias,
* set the group_sid to the
* 'Domain Users' RID of 513 which will always resolve to a
* name.
*/
if (sid_check_is_in_unix_groups(&group_sid) ||
sid_check_is_in_builtin(&group_sid) ||
sid_check_is_in_wellknown_domain(&group_sid)) {
if (sid_check_is_in_unix_users(&user_sid)) {
sid_compose(&group_sid,
get_global_sam_sid(),
DOMAIN_RID_USERS);
} else {
sid_copy(&domain_sid, &user_sid);
sid_split_rid(&domain_sid, NULL);
sid_compose(&group_sid,
&domain_sid,
DOMAIN_RID_USERS);
}
}
/* Make sure we have a valid group sid */
is_null = is_null_sid(&group_sid);
if (is_null) {
status = NT_STATUS_NO_SUCH_USER;
goto done;
}
/* Construct a netr_SamInfo3 from the information we have */
info3 = talloc_zero(tmp_ctx, struct netr_SamInfo3);
if (!info3) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
info3->base.account_name.string = talloc_strdup(info3, unix_username);
if (info3->base.account_name.string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
ZERO_STRUCT(domain_sid);
status = SamInfo3_handle_sids(unix_username,
&user_sid,
&group_sid,
info3,
&domain_sid,
extra);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
info3->base.domain_sid = dom_sid_dup(info3, &domain_sid);
if (info3->base.domain_sid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
ok = sid_peek_check_rid(&domain_sid, &group_sid,
&info3->base.primary_gid);
if (!ok) {
DEBUG(1, ("The primary group domain sid(%s) does not "
"match the domain sid(%s) for %s(%s)\n",
sid_string_dbg(&group_sid),
sid_string_dbg(&domain_sid),
unix_username,
sid_string_dbg(&user_sid)));
status = NT_STATUS_INVALID_SID;
goto done;
}
info3->base.acct_flags = ACB_NORMAL;
if (num_sids) {
status = group_sids_to_info3(info3, user_sids, num_sids);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
}
*pinfo3 = talloc_steal(mem_ctx, info3);
status = NT_STATUS_OK;
done:
talloc_free(tmp_ctx);
return status;
}
static NTSTATUS SamInfo3_handle_sids(const char *username,
const struct dom_sid *user_sid,
const struct dom_sid *group_sid,
struct netr_SamInfo3 *info3,
struct dom_sid *domain_sid,
struct extra_auth_info *extra)
{
if (sid_check_is_in_unix_users(user_sid)) {
/* in info3 you can only set rids for the user and the
* primary group, and the domain sid must be that of
* the sam domain.
*
* Store a completely bogus value here.
* The real SID is stored in the extra sids.
* Other code will know to look there if (-1) is found
*/
info3->base.rid = (uint32_t)(-1);
sid_copy(&extra->user_sid, user_sid);
DEBUG(10, ("Unix User found. Rid marked as "
"special and sid (%s) saved as extra sid\n",
sid_string_dbg(user_sid)));
} else {
sid_copy(domain_sid, user_sid);
sid_split_rid(domain_sid, &info3->base.rid);
}
if (is_null_sid(domain_sid)) {
sid_copy(domain_sid, get_global_sam_sid());
}
/* check if this is a "Unix Groups" domain group,
* if so we need special handling */
if (sid_check_is_in_unix_groups(group_sid)) {
/* in info3 you can only set rids for the user and the
* primary group, and the domain sid must be that of
* the sam domain.
*
* Store a completely bogus value here.
* The real SID is stored in the extra sids.
* Other code will know to look there if (-1) is found
*/
info3->base.primary_gid = (uint32_t)(-1);
sid_copy(&extra->pgid_sid, group_sid);
DEBUG(10, ("Unix Group found. Rid marked as "
"special and sid (%s) saved as extra sid\n",
sid_string_dbg(group_sid)));
} else {
bool ok = sid_peek_check_rid(domain_sid, group_sid,
&info3->base.primary_gid);
if (!ok) {
DEBUG(1, ("The primary group domain sid(%s) does not "
"match the domain sid(%s) for %s(%s)\n",
sid_string_dbg(group_sid),
sid_string_dbg(domain_sid),
username,
sid_string_dbg(user_sid)));
return NT_STATUS_INVALID_SID;
}
}
return NT_STATUS_OK;
}
