/* Lookup groups a user is a member of - alternate method, for when
tokenGroups are not available. */
static NTSTATUS lookup_usergroups_member(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
const char *user_dn,
struct dom_sid *primary_group,
uint32_t *p_num_groups, struct dom_sid **user_sids)
{
ADS_STATUS rc;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
int count;
LDAPMessage *res = NULL;
LDAPMessage *msg = NULL;
char *ldap_exp;
ADS_STRUCT *ads;
const char *group_attrs[] = {"objectSid", NULL};
char *escaped_dn;
uint32_t num_groups = 0;
DEBUG(3,("ads: lookup_usergroups_member\n"));
if ( !winbindd_can_contact_domain( domain ) ) {
DEBUG(10,("lookup_usergroups_members: No incoming trust for domain %s\n",
domain->name));
return NT_STATUS_OK;
}
ads = ads_cached_connection(domain);
if (!ads) {
domain->last_status = NT_STATUS_SERVER_DISABLED;
goto done;
}
if (!(escaped_dn = escape_ldap_string(talloc_tos(), user_dn))) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
ldap_exp = talloc_asprintf(mem_ctx,
"(&(member=%s)(objectCategory=group)(groupType:dn:%s:=%d))",
escaped_dn,
ADS_LDAP_MATCHING_RULE_BIT_AND,
GROUP_TYPE_SECURITY_ENABLED);
if (!ldap_exp) {
DEBUG(1,("lookup_usergroups(dn=%s) asprintf failed!\n", user_dn));
TALLOC_FREE(escaped_dn);
status = NT_STATUS_NO_MEMORY;
goto done;
}
TALLOC_FREE(escaped_dn);
rc = ads_search_retry(ads, &res, ldap_exp, group_attrs);
if (!ADS_ERR_OK(rc) || !res) {
DEBUG(1,("lookup_usergroups ads_search member=%s: %s\n", user_dn, ads_errstr(rc)));
return ads_ntstatus(rc);
}
count = ads_count_replies(ads, res);
*user_sids = NULL;
num_groups = 0;
/* always add the primary group to the sid array */
status = add_sid_to_array(mem_ctx, primary_group, user_sids,
&num_groups);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
if (count > 0) {
for (msg = ads_first_entry(ads, res); msg;
msg = ads_next_entry(ads, msg)) {
struct dom_sid group_sid;
if (!ads_pull_sid(ads, msg, "objectSid", &group_sid)) {
DEBUG(1,("No sid for this group ?!?\n"));
continue;
}
/* ignore Builtin groups from ADS - Guenther */
if (sid_check_is_in_builtin(&group_sid)) {
continue;
}
status = add_sid_to_array(mem_ctx, &group_sid,
user_sids, &num_groups);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
}
}
*p_num_groups = num_groups;
status = (user_sids != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
DEBUG(3,("ads lookup_usergroups (member) succeeded for dn=%s\n", user_dn));
done:
if (res)
ads_msgfree(ads, res);
return status;
}
/* list all domain groups */
static NTSTATUS enum_dom_groups(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *num_entries,
struct wb_acct_info **info)
{
ADS_STRUCT *ads = NULL;
const char *attrs[] = {"userPrincipalName", "sAMAccountName",
"name", "objectSid", NULL};
int i, count;
ADS_STATUS rc;
LDAPMessage *res = NULL;
LDAPMessage *msg = NULL;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
const char *filter;
bool enum_dom_local_groups = False;
*num_entries = 0;
DEBUG(3,("ads: enum_dom_groups\n"));
if ( !winbindd_can_contact_domain( domain ) ) {
DEBUG(10,("enum_dom_groups: No incoming trust for domain %s\n",
domain->name));
return NT_STATUS_OK;
}
/* only grab domain local groups for our domain */
if ( domain->active_directory && strequal(lp_realm(), domain->alt_name) ) {
enum_dom_local_groups = True;
}
/* Workaround ADS LDAP bug present in MS W2K3 SP0 and W2K SP4 w/o
* rollup-fixes:
*
* According to Section 5.1(4) of RFC 2251 if a value of a type is it's
* default value, it MUST be absent. In case of extensible matching the
* "dnattr" boolean defaults to FALSE and so it must be only be present
* when set to TRUE.
*
* When it is set to FALSE and the OpenLDAP lib (correctly) encodes a
* filter using bitwise matching rule then the buggy AD fails to decode
* the extensible match. As a workaround set it to TRUE and thereby add
* the dnAttributes "dn" field to cope with those older AD versions.
* It should not harm and won't put any additional load on the AD since
* none of the dn components have a bitmask-attribute.
*
* Thanks to Ralf Haferkamp for input and testing - Guenther */
filter = talloc_asprintf(mem_ctx, "(&(objectCategory=group)(&(groupType:dn:%s:=%d)(!(groupType:dn:%s:=%d))))",
ADS_LDAP_MATCHING_RULE_BIT_AND, GROUP_TYPE_SECURITY_ENABLED,
ADS_LDAP_MATCHING_RULE_BIT_AND,
enum_dom_local_groups ? GROUP_TYPE_BUILTIN_LOCAL_GROUP : GROUP_TYPE_RESOURCE_GROUP);
if (filter == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
ads = ads_cached_connection(domain);
if (!ads) {
domain->last_status = NT_STATUS_SERVER_DISABLED;
goto done;
}
rc = ads_search_retry(ads, &res, filter, attrs);
if (!ADS_ERR_OK(rc) || !res) {
DEBUG(1,("enum_dom_groups ads_search: %s\n", ads_errstr(rc)));
goto done;
}
count = ads_count_replies(ads, res);
if (count == 0) {
DEBUG(1,("enum_dom_groups: No groups found\n"));
goto done;
}
(*info) = talloc_zero_array(mem_ctx, struct wb_acct_info, count);
if (!*info) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
i = 0;
for (msg = ads_first_entry(ads, res); msg; msg = ads_next_entry(ads, msg)) {
char *name, *gecos;
struct dom_sid sid;
uint32 rid;
name = ads_pull_username(ads, mem_ctx, msg);
gecos = ads_pull_string(ads, mem_ctx, msg, "name");
if (!ads_pull_sid(ads, msg, "objectSid", &sid)) {
DEBUG(1,("No sid for %s !?\n", name));
continue;
}
if (!sid_peek_check_rid(&domain->sid, &sid, &rid)) {
DEBUG(1,("No rid for %s !?\n", name));
continue;
}
fstrcpy((*info)[i].acct_name, name);
fstrcpy((*info)[i].acct_desc, gecos);
(*info)[i].rid = rid;
i++;
}
(*num_entries) = i;
status = NT_STATUS_OK;
DEBUG(3,("ads enum_dom_groups gave %d entries\n", (*num_entries)));
done:
if (res)
ads_msgfree(ads, res);
return status;
}
/* Query display info for a realm. This is the basic user list fn */
static NTSTATUS query_user_list(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *num_entries,
struct wbint_userinfo **pinfo)
{
ADS_STRUCT *ads = NULL;
const char *attrs[] = { "*", NULL };
int i, count;
ADS_STATUS rc;
LDAPMessage *res = NULL;
LDAPMessage *msg = NULL;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
*num_entries = 0;
DEBUG(3,("ads: query_user_list\n"));
if ( !winbindd_can_contact_domain( domain ) ) {
DEBUG(10,("query_user_list: No incoming trust for domain %s\n",
domain->name));
return NT_STATUS_OK;
}
ads = ads_cached_connection(domain);
if (!ads) {
domain->last_status = NT_STATUS_SERVER_DISABLED;
goto done;
}
rc = ads_search_retry(ads, &res, "(objectCategory=user)", attrs);
if (!ADS_ERR_OK(rc) || !res) {
DEBUG(1,("query_user_list ads_search: %s\n", ads_errstr(rc)));
goto done;
}
count = ads_count_replies(ads, res);
if (count == 0) {
DEBUG(1,("query_user_list: No users found\n"));
goto done;
}
(*pinfo) = talloc_zero_array(mem_ctx, struct wbint_userinfo, count);
if (!*pinfo) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
count = 0;
for (msg = ads_first_entry(ads, res); msg; msg = ads_next_entry(ads, msg)) {
struct wbint_userinfo *info = &((*pinfo)[count]);
uint32 group;
uint32 atype;
if (!ads_pull_uint32(ads, msg, "sAMAccountType", &atype) ||
ds_atype_map(atype) != SID_NAME_USER) {
DEBUG(1,("Not a user account? atype=0x%x\n", atype));
continue;
}
info->acct_name = ads_pull_username(ads, mem_ctx, msg);
info->full_name = ads_pull_string(ads, mem_ctx, msg, "name");
info->homedir = NULL;
info->shell = NULL;
info->primary_gid = (gid_t)-1;
if (!ads_pull_sid(ads, msg, "objectSid",
&info->user_sid)) {
DEBUG(1, ("No sid for %s !?\n", info->acct_name));
continue;
}
if (!ads_pull_uint32(ads, msg, "primaryGroupID", &group)) {
DEBUG(1, ("No primary group for %s !?\n",
info->acct_name));
continue;
}
sid_compose(&info->group_sid, &domain->sid, group);
count += 1;
}
(*num_entries) = count;
ads_msgfree(ads, res);
for (i=0; i<count; i++) {
struct wbint_userinfo *info = &((*pinfo)[i]);
const char *gecos = NULL;
gid_t primary_gid = (gid_t)-1;
status = nss_get_info_cached(domain, &info->user_sid, mem_ctx,
&info->homedir, &info->shell,
&gecos, &primary_gid);
if (!NT_STATUS_IS_OK(status)) {
/*
* Deliberately ignore this error, there might be more
* users to fill
*/
continue;
}
if (gecos != NULL) {
info->full_name = gecos;
}
info->primary_gid = primary_gid;
}
status = NT_STATUS_OK;
DEBUG(3,("ads query_user_list gave %d entries\n", (*num_entries)));
done:
return status;
}
/* convert a single name to a sid in a domain */
NTSTATUS ads_name_to_sid(ADS_STRUCT *ads,
const char *name,
DOM_SID *sid,
enum SID_NAME_USE *type)
{
const char *attrs[] = {"objectSid", "sAMAccountType", NULL};
int count;
ADS_STATUS rc;
void *res = NULL;
char *ldap_exp;
uint32 t;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
char *escaped_name = escape_ldap_string_alloc(name);
char *escaped_realm = escape_ldap_string_alloc(ads->config.realm);
if (!escaped_name || !escaped_realm) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
if (asprintf(&ldap_exp, "(|(sAMAccountName=%s)(userPrincipalName=%s@%s))",
escaped_name, escaped_name, escaped_realm) == -1) {
DEBUG(1,("ads_name_to_sid: asprintf failed!\n"));
status = NT_STATUS_NO_MEMORY;
goto done;
}
rc = ads_search_retry(ads, &res, ldap_exp, attrs);
free(ldap_exp);
if (!ADS_ERR_OK(rc)) {
DEBUG(1,("name_to_sid ads_search: %s\n", ads_errstr(rc)));
goto done;
}
count = ads_count_replies(ads, res);
if (count != 1) {
DEBUG(1,("name_to_sid: %s not found\n", name));
goto done;
}
if (!ads_pull_sid(ads, res, "objectSid", sid)) {
DEBUG(1,("No sid for %s !?\n", name));
goto done;
}
if (!ads_pull_uint32(ads, res, "sAMAccountType", &t)) {
DEBUG(1,("No sAMAccountType for %s !?\n", name));
goto done;
}
*type = ads_atype_map(t);
status = NT_STATUS_OK;
DEBUG(3,("ads name_to_sid mapped %s\n", name));
done:
if (res) ads_msgfree(ads, res);
SAFE_FREE(escaped_name);
SAFE_FREE(escaped_realm);
return status;
}
/* Query display info for a realm. This is the basic user list fn */
static NTSTATUS query_user_list(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32_t **prids)
{
ADS_STRUCT *ads = NULL;
const char *attrs[] = { "sAMAccountType", "objectSid", NULL };
int count;
uint32_t *rids = NULL;
ADS_STATUS rc;
LDAPMessage *res = NULL;
LDAPMessage *msg = NULL;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
DEBUG(3,("ads: query_user_list\n"));
if ( !winbindd_can_contact_domain( domain ) ) {
DEBUG(10,("query_user_list: No incoming trust for domain %s\n",
domain->name));
return NT_STATUS_OK;
}
ads = ads_cached_connection(domain);
if (!ads) {
domain->last_status = NT_STATUS_SERVER_DISABLED;
goto done;
}
rc = ads_search_retry(ads, &res, "(objectCategory=user)", attrs);
if (!ADS_ERR_OK(rc)) {
DEBUG(1,("query_user_list ads_search: %s\n", ads_errstr(rc)));
status = ads_ntstatus(rc);
goto done;
} else if (!res) {
DEBUG(1,("query_user_list ads_search returned NULL res\n"));
goto done;
}
count = ads_count_replies(ads, res);
if (count == 0) {
DEBUG(1,("query_user_list: No users found\n"));
goto done;
}
rids = talloc_zero_array(mem_ctx, uint32_t, count);
if (rids == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
count = 0;
for (msg = ads_first_entry(ads, res); msg; msg = ads_next_entry(ads, msg)) {
struct dom_sid user_sid;
uint32_t atype;
bool ok;
ok = ads_pull_uint32(ads, msg, "sAMAccountType", &atype);
if (!ok) {
DBG_INFO("Object lacks sAMAccountType attribute\n");
continue;
}
if (ds_atype_map(atype) != SID_NAME_USER) {
DBG_INFO("Not a user account? atype=0x%x\n", atype);
continue;
}
if (!ads_pull_sid(ads, msg, "objectSid", &user_sid)) {
char *dn = ads_get_dn(ads, talloc_tos(), msg);
DBG_INFO("No sid for %s !?\n", dn);
TALLOC_FREE(dn);
continue;
}
if (!dom_sid_in_domain(&domain->sid, &user_sid)) {
fstring sidstr, domstr;
DBG_WARNING("Got sid %s in domain %s\n",
sid_to_fstring(sidstr, &user_sid),
sid_to_fstring(domstr, &domain->sid));
continue;
}
sid_split_rid(&user_sid, &rids[count]);
count += 1;
}
rids = talloc_realloc(mem_ctx, rids, uint32_t, count);
if (prids != NULL) {
*prids = rids;
}
status = NT_STATUS_OK;
DBG_NOTICE("ads query_user_list gave %d entries\n", count);
done:
return status;
}
/* Query display info for a realm. This is the basic user list fn */
static NTSTATUS query_user_list(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *num_entries,
struct wbint_userinfo **info)
{
ADS_STRUCT *ads = NULL;
const char *attrs[] = { "*", NULL };
int i, count;
ADS_STATUS rc;
LDAPMessage *res = NULL;
LDAPMessage *msg = NULL;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
*num_entries = 0;
DEBUG(3,("ads: query_user_list\n"));
if ( !winbindd_can_contact_domain( domain ) ) {
DEBUG(10,("query_user_list: No incoming trust for domain %s\n",
domain->name));
return NT_STATUS_OK;
}
ads = ads_cached_connection(domain);
if (!ads) {
domain->last_status = NT_STATUS_SERVER_DISABLED;
goto done;
}
rc = ads_search_retry(ads, &res, "(objectCategory=user)", attrs);
if (!ADS_ERR_OK(rc) || !res) {
DEBUG(1,("query_user_list ads_search: %s\n", ads_errstr(rc)));
goto done;
}
count = ads_count_replies(ads, res);
if (count == 0) {
DEBUG(1,("query_user_list: No users found\n"));
goto done;
}
(*info) = TALLOC_ZERO_ARRAY(mem_ctx, struct wbint_userinfo, count);
if (!*info) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
i = 0;
for (msg = ads_first_entry(ads, res); msg; msg = ads_next_entry(ads, msg)) {
const char *name;
const char *gecos = NULL;
const char *homedir = NULL;
const char *shell = NULL;
uint32 group;
uint32 atype;
DOM_SID user_sid;
gid_t primary_gid = (gid_t)-1;
if (!ads_pull_uint32(ads, msg, "sAMAccountType", &atype) ||
ds_atype_map(atype) != SID_NAME_USER) {
DEBUG(1,("Not a user account? atype=0x%x\n", atype));
continue;
}
name = ads_pull_username(ads, mem_ctx, msg);
if ( ads_pull_sid( ads, msg, "objectSid", &user_sid ) ) {
status = nss_get_info_cached( domain, &user_sid, mem_ctx,
ads, msg, &homedir, &shell, &gecos,
&primary_gid );
}
if (gecos == NULL) {
gecos = ads_pull_string(ads, mem_ctx, msg, "name");
}
if (!ads_pull_sid(ads, msg, "objectSid",
&(*info)[i].user_sid)) {
DEBUG(1,("No sid for %s !?\n", name));
continue;
}
if (!ads_pull_uint32(ads, msg, "primaryGroupID", &group)) {
DEBUG(1,("No primary group for %s !?\n", name));
continue;
}
(*info)[i].acct_name = name;
(*info)[i].full_name = gecos;
(*info)[i].homedir = homedir;
(*info)[i].shell = shell;
(*info)[i].primary_gid = primary_gid;
sid_compose(&(*info)[i].group_sid, &domain->sid, group);
i++;
}
(*num_entries) = i;
status = NT_STATUS_OK;
DEBUG(3,("ads query_user_list gave %d entries\n", (*num_entries)));
done:
if (res)
ads_msgfree(ads, res);
return status;
}
