s4:ldap_server: return the extended dn to the LDAP client if available

This uses an early peek at the extended_dn_control (in the request) to see what output
format to use.

Signed-off-by: Stefan Metzmacher <metze@samba.org>

diff --git a/source4/ldap_server/ldap_backend.c b/source4/ldap_server/ldap_backend.c
index 2adff2a1dfad5d5e9c43075dddc3fb4a2f6196ac..a091c1d11e9623e339b4852a20dd6fb010e17bcf 100644 (file)
--- a/source4/ldap_server/ldap_backend.c
+++ b/source4/ldap_server/ldap_backend.c
@@ -159,6 +159,8 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
        struct ldb_request *lreq;
        struct ldb_control *search_control;
        struct ldb_search_options_control *search_options;
+       struct ldb_control *extended_dn_control;
+       struct ldb_extended_dn_control *extended_dn_decoded = NULL;
        enum ldb_scope scope = LDB_SCOPE_DEFAULT;
        const char **attrs = NULL;
        const char *scope_str, *errstr = NULL;
@@ -166,6 +168,7 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
        int result = -1;
        int ldb_ret = -1;
        int i, j;
+       int extended_type = 1;
 
        DEBUG(10, ("SearchRequest"));
        DEBUGADD(10, (" basedn: %s", req->basedn));
@@ -245,6 +248,18 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
                        ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
                }
        }
+
+       extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
+
+       if (extended_dn_control) {
+               if (extended_dn_control->data) {
+                       extended_dn_decoded = talloc_get_type(extended_dn_control->data, struct ldb_extended_dn_control);
+                       extended_type = extended_dn_decoded->type;
+               } else {
+                       extended_type = 0;
+               }
+       }
+
        ldb_set_timeout(samdb, lreq, req->timelimit);
 
        ldb_ret = ldb_request(samdb, lreq);
@@ -266,7 +281,7 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
                        talloc_steal(ent_r, res->msgs[i]);
                        
                        ent = &ent_r->msg->r.SearchResultEntry;
-                       ent->dn = ldb_dn_alloc_linearized(ent_r, res->msgs[i]->dn);
+                       ent->dn = ldb_dn_get_extended_linearized(ent_r, res->msgs[i]->dn, extended_type);
                        ent->num_attributes = 0;
                        ent->attributes = NULL;
                        if (res->msgs[i]->num_elements == 0) {