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From 3d9560303f7c96abf36ff93abd85b2319808d3f6 Mon Sep 17 00:00:00 2001
From: Sumit Bose <sbose@redhat.com>
Date: Tue, 28 Apr 2015 20:58:15 +0200
Subject: [PATCH 213/214] IPA: enhance ipa_initgr_get_overrides_send()

This patch makes ipa_initgr_get_overrides_send() public and add support
to search overrides by UUID or by SID.

Related to https://fedorahosted.org/sssd/ticket/2633

Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
(cherry picked from commit 145578006684481434ced78461ab8d1c3570f478)
(cherry picked from commit 58a19d50888b1a7da0ee78b49e7d3dcbebc8614d)
---
 src/db/sysdb_views.c       |  5 ++++
 src/providers/ipa/ipa_id.c | 63 +++++++++++++++++++++++++++++++++-------------
 src/providers/ipa/ipa_id.h | 10 ++++++++
 3 files changed, 61 insertions(+), 17 deletions(-)

diff --git a/src/db/sysdb_views.c b/src/db/sysdb_views.c
index 717edf20a447003568060cf4d32bf8d47bd93e63..58cad5426109f0fb37ef16fd1304b50a702cf44a 100644
--- a/src/db/sysdb_views.c
+++ b/src/db/sysdb_views.c
@@ -733,6 +733,11 @@ errno_t sysdb_apply_default_override(struct sss_domain_info *domain,
                                     NULL };
     bool override_attrs_found = false;
 
+    if (override_attrs == NULL) {
+        /* nothing to do */
+        return EOK;
+    }
+
     tmp_ctx = talloc_new(NULL);
     if (tmp_ctx == NULL) {
         DEBUG(SSSDBG_OP_FAILURE, "talloc_new failed.\n");
diff --git a/src/providers/ipa/ipa_id.c b/src/providers/ipa/ipa_id.c
index cc6abcf8721e3f05526bf62063f0cbdc7c1c257b..02b59ab77a7408012efdd9a1538287e08de0af1e 100644
--- a/src/providers/ipa/ipa_id.c
+++ b/src/providers/ipa/ipa_id.c
@@ -294,6 +294,7 @@ struct ipa_initgr_get_overrides_state {
 
     struct ldb_message **groups;
     size_t group_count;
+    const char *groups_id_attr;
     size_t group_idx;
     struct be_acct_req *ar;
 
@@ -302,13 +303,14 @@ struct ipa_initgr_get_overrides_state {
 
 static int ipa_initgr_get_overrides_step(struct tevent_req *req);
 
-static struct tevent_req *
+struct tevent_req *
 ipa_initgr_get_overrides_send(TALLOC_CTX *memctx,
                              struct tevent_context *ev,
                              struct ipa_id_ctx *ipa_ctx,
                              struct sss_domain_info *user_dom,
                              size_t groups_count,
-                             struct ldb_message **groups)
+                             struct ldb_message **groups,
+                             const char *groups_id_attr)
 {
     int ret;
     struct tevent_req *req;
@@ -334,6 +336,12 @@ ipa_initgr_get_overrides_send(TALLOC_CTX *memctx,
         ret = EINVAL;
         goto done;
     }
+    state->groups_id_attr = talloc_strdup(state, groups_id_attr);
+    if (state->groups_id_attr == NULL) {
+        DEBUG(SSSDBG_OP_FAILURE, "talloc_strdup failed.\n");
+        ret = ENOMEM;
+        goto done;
+    }
 
     ret = ipa_initgr_get_overrides_step(req);
 done:
@@ -366,7 +374,7 @@ static int ipa_initgr_get_overrides_step(struct tevent_req *req)
     }
 
     ipa_uuid = ldb_msg_find_attr_as_string(state->groups[state->group_idx],
-                                            SYSDB_UUID, NULL);
+                                           state->groups_id_attr, NULL);
     if (ipa_uuid == NULL) {
         /* This should never happen, the search filter used to get the list
          * of groups includes "uuid=*"
@@ -377,11 +385,24 @@ static int ipa_initgr_get_overrides_step(struct tevent_req *req)
 
     talloc_free(state->ar); /* Avoid spiking memory with many groups */
 
-    ret = get_be_acct_req_for_uuid(state, ipa_uuid,
-                                   state->user_dom->name, &state->ar);
-    if (ret != EOK) {
-        DEBUG(SSSDBG_OP_FAILURE, "get_be_acct_req_for_sid failed.\n");
-        return ret;
+    if (strcmp(state->groups_id_attr, SYSDB_UUID) == 0) {
+        ret = get_be_acct_req_for_uuid(state, ipa_uuid,
+                                       state->user_dom->name, &state->ar);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_OP_FAILURE, "get_be_acct_req_for_sid failed.\n");
+            return ret;
+        }
+    } else if (strcmp(state->groups_id_attr, SYSDB_SID_STR) == 0) {
+        ret = get_be_acct_req_for_sid(state, ipa_uuid,
+                                      state->user_dom->name, &state->ar);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_OP_FAILURE, "get_be_acct_req_for_sid failed.\n");
+            return ret;
+        }
+    } else {
+        DEBUG(SSSDBG_CRIT_FAILURE, "Unsupported groups ID type [%s].\n",
+                                   state->groups_id_attr);
+        return EINVAL;
     }
 
     DEBUG(SSSDBG_TRACE_LIBS, "Fetching group %s\n", ipa_uuid);
@@ -408,7 +429,7 @@ static void ipa_initgr_get_overrides_override_done(struct tevent_req *subreq)
     struct ipa_initgr_get_overrides_state *state = tevent_req_data(req,
                                         struct ipa_initgr_get_overrides_state);
     int ret;
-    struct sysdb_attrs *override_attrs;
+    struct sysdb_attrs *override_attrs = NULL;
 
     ret = ipa_get_ad_override_recv(subreq, &state->dp_error, state,
                                    &override_attrs);
@@ -419,10 +440,16 @@ static void ipa_initgr_get_overrides_override_done(struct tevent_req *subreq)
         return;
     }
 
-    ret = sysdb_store_override(state->user_dom, state->ipa_ctx->view_name,
-                               SYSDB_MEMBER_GROUP,
-                               override_attrs,
-                               state->groups[state->group_idx]->dn);
+    if (strcmp(state->ipa_ctx->view_name, SYSDB_DEFAULT_VIEW_NAME) == 0) {
+        ret = sysdb_apply_default_override(state->user_dom, override_attrs,
+                                       state->groups[state->group_idx]->dn);
+    } else {
+        ret = sysdb_store_override(state->user_dom,
+                                   state->ipa_ctx->view_name,
+                                   SYSDB_MEMBER_GROUP,
+                                   override_attrs,
+                                   state->groups[state->group_idx]->dn);
+    }
     talloc_free(override_attrs);
     if (ret != EOK) {
         DEBUG(SSSDBG_OP_FAILURE, "sysdb_store_override failed.\n");
@@ -443,7 +470,7 @@ static void ipa_initgr_get_overrides_override_done(struct tevent_req *subreq)
     tevent_req_done(req);
 }
 
-static int ipa_initgr_get_overrides_recv(struct tevent_req *req, int *dp_error)
+int ipa_initgr_get_overrides_recv(struct tevent_req *req, int *dp_error)
 {
     struct ipa_initgr_get_overrides_state *state = tevent_req_data(req,
                                         struct ipa_initgr_get_overrides_state);
@@ -881,7 +908,8 @@ static void ipa_id_get_account_info_orig_done(struct tevent_req *subreq)
     if (state->user_groups != NULL) {
         subreq = ipa_initgr_get_overrides_send(state, state->ev, state->ipa_ctx,
                                               state->domain, state->group_cnt,
-                                              state->user_groups);
+                                              state->user_groups,
+                                              SYSDB_UUID);
         if (subreq == NULL) {
             DEBUG(SSSDBG_OP_FAILURE, "ipa_resolve_user_list_send failed.\n");
             ret = ENOMEM;
@@ -959,8 +987,9 @@ static void ipa_id_get_account_info_done(struct tevent_req *subreq)
 
     if (state->user_groups != NULL) {
         subreq = ipa_initgr_get_overrides_send(state, state->ev, state->ipa_ctx,
-                                              state->domain, state->group_cnt,
-                                              state->user_groups);
+                                               state->domain, state->group_cnt,
+                                               state->user_groups,
+                                               SYSDB_UUID);
         if (subreq == NULL) {
             DEBUG(SSSDBG_OP_FAILURE, "ipa_resolve_user_list_send failed.\n");
             ret = ENOMEM;
diff --git a/src/providers/ipa/ipa_id.h b/src/providers/ipa/ipa_id.h
index 2bb5e0d38f42d4bbb04854dfb04804fecf6257e8..c03ca037a2850478a8f4933bac4fcf8bd70ada04 100644
--- a/src/providers/ipa/ipa_id.h
+++ b/src/providers/ipa/ipa_id.h
@@ -119,4 +119,14 @@ errno_t get_object_from_cache(TALLOC_CTX *mem_ctx,
                               struct sss_domain_info *dom,
                               struct be_acct_req *ar,
                               struct ldb_message **_msg);
+
+struct tevent_req *
+ipa_initgr_get_overrides_send(TALLOC_CTX *memctx,
+                             struct tevent_context *ev,
+                             struct ipa_id_ctx *ipa_ctx,
+                             struct sss_domain_info *user_dom,
+                             size_t groups_count,
+                             struct ldb_message **groups,
+                             const char *groups_id_attr);
+int ipa_initgr_get_overrides_recv(struct tevent_req *req, int *dp_error);
 #endif
-- 
2.4.3