From 992a6410a3100cc64f9f2ea674fda9151fa5d474 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabiano=20Fid=C3=AAncio?= <fidencio@redhat.com>
Date: Mon, 29 May 2017 14:58:33 +0200
Subject: [PATCH 168/169] CACHE_REQ: Simplify _search_ncache_filter()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Let's make the result and input/output argument for
_search_ncache_filter() and free it inside the function whenever it's
needed instead of leaving this responsibility for the caller.
Related:
https://pagure.io/SSSD/sssd/issue/3362
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
(cherry picked from commit c8193b1602cf44740b59f5dfcdc5330508c0c365)
---
src/responder/common/cache_req/cache_req_search.c | 27 ++++++-----------------
1 file changed, 7 insertions(+), 20 deletions(-)
diff --git a/src/responder/common/cache_req/cache_req_search.c b/src/responder/common/cache_req/cache_req_search.c
index 70448a7639bc9f98d380b8edce9d130adfa0ceb2..d3aaa7542ddfd28716fbf9cdcedfeadb649dbaa0 100644
--- a/src/responder/common/cache_req/cache_req_search.c
+++ b/src/responder/common/cache_req/cache_req_search.c
@@ -86,7 +86,6 @@ static void cache_req_search_ncache_add(struct cache_req *cr)
static errno_t cache_req_search_ncache_filter(TALLOC_CTX *mem_ctx,
struct cache_req *cr,
- struct ldb_result *result,
struct ldb_result **_result)
{
TALLOC_CTX *tmp_ctx;
@@ -106,8 +105,6 @@ static errno_t cache_req_search_ncache_filter(TALLOC_CTX *mem_ctx,
"This request type does not support filtering "
"result by negative cache\n");
- *_result = talloc_steal(mem_ctx, result);
-
ret = EOK;
goto done;
}
@@ -115,11 +112,11 @@ static errno_t cache_req_search_ncache_filter(TALLOC_CTX *mem_ctx,
CACHE_REQ_DEBUG(SSSDBG_TRACE_FUNC, cr,
"Filtering out results by negative cache\n");
- msgs = talloc_zero_array(tmp_ctx, struct ldb_message *, result->count);
+ msgs = talloc_zero_array(tmp_ctx, struct ldb_message *, (*_result)->count);
msg_count = 0;
- for (size_t i = 0; i < result->count; i++) {
- name = sss_get_name_from_msg(cr->domain, result->msgs[i]);
+ for (size_t i = 0; i < (*_result)->count; i++) {
+ name = sss_get_name_from_msg(cr->domain, (*_result)->msgs[i]);
if (name == NULL) {
CACHE_REQ_DEBUG(SSSDBG_CRIT_FAILURE, cr,
"sss_get_name_from_msg() returned NULL, which should never "
@@ -141,7 +138,7 @@ static errno_t cache_req_search_ncache_filter(TALLOC_CTX *mem_ctx,
goto done;
}
- msgs[msg_count] = talloc_steal(msgs, result->msgs[i]);
+ msgs[msg_count] = talloc_steal(msgs, (*_result)->msgs[i]);
msg_count++;
}
@@ -157,6 +154,7 @@ static errno_t cache_req_search_ncache_filter(TALLOC_CTX *mem_ctx,
goto done;
}
+ talloc_zfree(*_result);
*_result = talloc_steal(mem_ctx, filtered_result);
ret = EOK;
@@ -419,10 +417,8 @@ static void cache_req_search_oob_done(struct tevent_req *subreq)
static void cache_req_search_done(struct tevent_req *subreq)
{
- TALLOC_CTX *tmp_ctx;
struct cache_req_search_state *state;
struct tevent_req *req;
- struct ldb_result *result = NULL;
errno_t ret;
req = tevent_req_callback_data(subreq, struct tevent_req);
@@ -431,14 +427,8 @@ static void cache_req_search_done(struct tevent_req *subreq)
state->dp_success = state->cr->plugin->dp_recv_fn(subreq, state->cr);
talloc_zfree(subreq);
- tmp_ctx = talloc_new(NULL);
- if (tmp_ctx == NULL) {
- ret = ENOMEM;
- goto done;
- }
-
/* Get result from cache again. */
- ret = cache_req_search_cache(tmp_ctx, state->cr, &result);
+ ret = cache_req_search_cache(state, state->cr, &state->result);
if (ret != EOK) {
if (ret == ENOENT) {
/* Only store entry in negative cache if DP request succeeded
@@ -451,8 +441,7 @@ static void cache_req_search_done(struct tevent_req *subreq)
}
/* ret == EOK */
- ret = cache_req_search_ncache_filter(state, state->cr, result,
- &state->result);
+ ret = cache_req_search_ncache_filter(state, state->cr, &state->result);
if (ret != EOK) {
goto done;
}
@@ -461,8 +450,6 @@ static void cache_req_search_done(struct tevent_req *subreq)
"Returning updated object [%s]\n", state->cr->debugobj);
done:
- talloc_free(tmp_ctx);
-
if (ret != EOK) {
tevent_req_error(req, ret);
return;
--
2.9.4