sgsn/test: Fix memory leak in test_subscriber_gsup
Currently the MM context is not deleted when a GSUP location
cancellation message is processed, because the real
sgsn_update_subscriber_data function has been wrapped to a dummy
implementation.
This commit adds an explicit call to sgsn_mm_ctx_cleanup_free which
also unassigns the LLME, so the call to gprs_llgmm_assign is removed.
It also adds an assertion to check that there are no talloc'ed blocks
left in tall_bsc_ctx.
Addresses:
== 372 bytes in 1 blocks are possibly lost in loss record 7 of 9
== at 0x402A17C: malloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
== by 0x4059FB8: _talloc_zero (talloc.c:354)
== by 0x8055B82: sgsn_mm_ctx_alloc (gprs_sgsn.c:167)
== by 0x804A336: alloc_mm_ctx (sgsn_test.c:140)
== by 0x804B24D: test_subscriber_gsup (sgsn_test.c:503)
== by 0x804EC99: main (sgsn_test.c:1853)
Sponsored-by: On-Waves ehf
diff --git a/openbsc/tests/sgsn/sgsn_test.c b/openbsc/tests/sgsn/sgsn_test.c
index 5e74b0e..425cf63 100644
--- a/openbsc/tests/sgsn/sgsn_test.c
+++ b/openbsc/tests/sgsn/sgsn_test.c
@@ -383,7 +383,6 @@
struct sgsn_mm_ctx *ctx;
struct gprs_ra_id raid = { 0, };
uint32_t local_tlli = 0xffeeddcc;
- struct gprs_llc_llme *llme;
int rc;
static const uint8_t send_auth_info_res[] = {
@@ -495,7 +494,6 @@
/* Create a context */
OSMO_ASSERT(count(gprs_llme_list()) == 0);
ctx = alloc_mm_ctx(local_tlli, &raid);
- llme = ctx->llme;
/* Attach s1 to ctx */
ctx->subscr = subscr_get(s1);
@@ -582,10 +580,11 @@
OSMO_ASSERT(!(s1->flags & GPRS_SUBSCRIBER_ENABLE_PURGE));
/* Free MM context and subscriber */
+ OSMO_ASSERT(ctx->subscr == NULL);
+ sgsn_mm_ctx_cleanup_free(ctx);
subscr_put(s1);
s1found = gprs_subscr_get_by_imsi(imsi1);
OSMO_ASSERT(s1found == NULL);
- gprs_llgmm_assign(llme, local_tlli, 0xffffffff, GPRS_ALGO_GEA0, NULL);
/* Inject PurgeMsRes GSUP message */
rc = rx_gsup_message(purge_ms_res,
@@ -1834,9 +1833,12 @@
int main(int argc, char **argv)
{
+ void *osmo_sgsn_ctx;
+
osmo_init_logging(&info);
- tall_bsc_ctx = talloc_named_const(NULL, 0, "osmo_sgsn");
- tall_msgb_ctx = talloc_named_const(tall_bsc_ctx, 0, "msgb");
+ osmo_sgsn_ctx = talloc_named_const(NULL, 0, "osmo_sgsn");
+ tall_bsc_ctx = talloc_named_const(osmo_sgsn_ctx, 0, "bsc");
+ tall_msgb_ctx = talloc_named_const(osmo_sgsn_ctx, 0, "msgb");
sgsn_auth_init();
gprs_subscr_init(sgsn);
@@ -1863,8 +1865,9 @@
test_gmm_ptmsi_allocation();
printf("Done\n");
- talloc_report_full(tall_bsc_ctx, stderr);
+ talloc_report_full(osmo_sgsn_ctx, stderr);
OSMO_ASSERT(talloc_total_blocks(tall_msgb_ctx) == 1);
+ OSMO_ASSERT(talloc_total_blocks(tall_bsc_ctx) == 1);
return 0;
}