views: search overrides for user and group requests

If the name or the POSIX ID of a user or a group is overridden the
search request for those objects have to check the overide objects first
before looking up the original objects.

This patch adds a new request for the IPA sub-domain users which checks
the overrides first if
- SSSD is running in ipa-server-mode and a name or a POSIX ID is
  searched, since we do not override the SIDs we can skip the search in
  the override tree here
- if the responder indicates it has not found the corresponding object
  in the cache and the input might be an override name or ID and not the
  original one of an object.

If an override object was found the SID is extracted from the anchor
attribute and the original object is search by its SID. If no override
object was found the original object is search with the original input
and finally it is checked if an override object exits for the found
object.

Relates to https://fedorahosted.org/sssd/ticket/2375

Reviewed-by: Pavel Březina <pbrezina@redhat.com>

1 files changed, 3 insertions, 15 deletions

diff --git a/src/providers/ipa/ipa_id.c b/src/providers/ipa/ipa_id.c
index 942feb19e..cd65f5b46 100644
--- a/src/providers/ipa/ipa_id.c
+++ b/src/providers/ipa/ipa_id.c
@@ -87,11 +87,8 @@ void ipa_account_info_handler(struct be_req *breq)
          * subdomain lookups are handled differently on the server
          * and the client
          */
-        if (dp_opt_get_bool(ipa_ctx->ipa_options->basic, IPA_SERVER_MODE)) {
-            req = ipa_get_ad_acct_send(breq, be_ctx->ev, ipa_ctx, breq, ar);
-        } else {
-            req = ipa_get_subdom_acct_send(breq, be_ctx->ev, ipa_ctx, ar);
-        }
+        req = ipa_subdomain_account_send(breq, be_ctx->ev, ipa_ctx, breq, ar);
+
     } else if ((ar->entry_type & BE_REQ_TYPE_MASK) == BE_REQ_NETGROUP) {
         /* netgroups are handled by a separate request function */
         if (ar->filter_type != BE_FILTER_NAME) {
@@ -116,24 +113,15 @@ void ipa_account_info_handler(struct be_req *breq)
 static void ipa_account_info_done(struct tevent_req *req)
 {
     struct be_req *breq = tevent_req_callback_data(req, struct be_req);
-    struct be_ctx *be_ctx = be_req_get_be_ctx(breq);
-    struct ipa_id_ctx *ipa_ctx;
     struct be_acct_req *ar = talloc_get_type(be_req_get_data(breq),
                                              struct be_acct_req);
     const char *error_text;
     int ret, dp_error;
 
-    ipa_ctx = talloc_get_type(be_ctx->bet_info[BET_ID].pvt_bet_data,
-                              struct ipa_id_ctx);
-
     if ((ar->entry_type & BE_REQ_TYPE_MASK) == BE_REQ_NETGROUP) {
         ret = ipa_id_get_netgroup_recv(req, &dp_error);
     } else {
-        if (dp_opt_get_bool(ipa_ctx->ipa_options->basic, IPA_SERVER_MODE)) {
-            ret = ipa_get_ad_acct_recv(req, &dp_error);
-        } else {
-            ret = ipa_get_subdom_acct_recv(req, &dp_error);
-        }
+        ret = ipa_subdomain_account_recv(req, &dp_error);
     }
     talloc_zfree(req);