summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJacob Erlbeck <jerlbeck@sysmocom.de>2014-10-27 14:34:13 +0100
committerHolger Hans Peter Freyther <holger@moiji-mobile.com>2014-10-27 15:21:11 +0100
commit189999d65424b6d2bdc1c1beeac2cec8ee90a35c (patch)
treef4804df29e0fd2b28498557efe097eb720b74ace
parentabc16a55b25e7d55fb20222949e2e0e753380ab9 (diff)
sgsn/test: Add test case for Detach Request (MO, power-off = 1)
Currently only a Detach Request (MO) message with power_off = 0 is checked. This commit adds a new test case with power_off set to 1. It also adds checks for the number of messages generated by the SGSN to verify that these messages are handled differently. Note that the handling of power_off isn't implemented yet. Therefore the corresponding assertion is being disabled yet. Sponsored-by: On-Waves ehf
-rw-r--r--openbsc/tests/sgsn/sgsn_test.c63
-rw-r--r--openbsc/tests/sgsn/sgsn_test.ok1
2 files changed, 64 insertions, 0 deletions
diff --git a/openbsc/tests/sgsn/sgsn_test.c b/openbsc/tests/sgsn/sgsn_test.c
index bb886ec72..00ee86679 100644
--- a/openbsc/tests/sgsn/sgsn_test.c
+++ b/openbsc/tests/sgsn/sgsn_test.c
@@ -24,10 +24,13 @@
#include <openbsc/gprs_gmm.h>
#include <openbsc/debug.h>
+#include <osmocom/gprs/gprs_bssgp.h>
+
#include <osmocom/gsm/gsm_utils.h>
#include <osmocom/core/application.h>
#include <osmocom/core/msgb.h>
+#include <osmocom/core/rate_ctr.h>
#include <stdio.h>
@@ -42,6 +45,15 @@ static struct sgsn_instance sgsn_inst = {
},
};
struct sgsn_instance *sgsn = &sgsn_inst;
+unsigned sgsn_tx_counter = 0;
+
+/* override */
+int bssgp_tx_dl_ud(struct msgb *msg, uint16_t pdu_lifetime,
+ struct bssgp_dl_ud_par *dup)
+{
+ sgsn_tx_counter += 1;
+ return 0;
+}
static int count(struct llist_head *head)
{
@@ -131,6 +143,7 @@ static void test_gmm_detach(void)
struct sgsn_mm_ctx *ctx, *ictx;
uint32_t local_tlli;
struct msgb *msg;
+ int sgsn_tx_counter_old;
printf("Testing GMM detach\n");
@@ -148,11 +161,60 @@ static void test_gmm_detach(void)
ctx = alloc_mm_ctx(local_tlli, &raid);
/* inject the detach */
+ sgsn_tx_counter_old = sgsn_tx_counter;
msg = create_msg(detach_req, ARRAY_SIZE(detach_req));
msgb_tlli(msg) = local_tlli;
gsm0408_gprs_rcvmsg(msg, ctx->llme);
msgb_free(msg);
+ /* verify that a single message (hopefully the Detach Accept) has been
+ * sent by the SGSN */
+ OSMO_ASSERT(sgsn_tx_counter_old + 1 == sgsn_tx_counter);
+
+ /* verify that things are gone */
+ OSMO_ASSERT(count(gprs_llme_list()) == 0);
+ ictx = sgsn_mm_ctx_by_tlli(local_tlli, &raid);
+ OSMO_ASSERT(!ictx);
+}
+
+/*
+ * Test that a GMM Detach will remove the MMCTX and the associated LLME but
+ * will not sent a Detach Accept message (power_off = 1)
+ */
+static void test_gmm_detach_power_off(void)
+{
+ struct gprs_ra_id raid = { 0, };
+ struct sgsn_mm_ctx *ctx, *ictx;
+ uint32_t local_tlli;
+ struct msgb *msg;
+ int sgsn_tx_counter_old;
+
+ printf("Testing GMM detach (power off)\n");
+
+ /* DTAP - Detach Request (MO) */
+ /* normal detach, power_off = 1 */
+ static const unsigned char detach_req[] = {
+ 0x08, 0x05, 0x09, 0x18, 0x05, 0xf4, 0xef, 0xe2,
+ 0xb7, 0x00, 0x19, 0x03, 0xb9, 0x97, 0xcb
+ };
+
+ local_tlli = gprs_tmsi2tlli(0x23, TLLI_LOCAL);
+
+ /* Create a context */
+ OSMO_ASSERT(count(gprs_llme_list()) == 0);
+ ctx = alloc_mm_ctx(local_tlli, &raid);
+
+ /* inject the detach */
+ sgsn_tx_counter_old = sgsn_tx_counter;
+ msg = create_msg(detach_req, ARRAY_SIZE(detach_req));
+ msgb_tlli(msg) = local_tlli;
+ gsm0408_gprs_rcvmsg(msg, ctx->llme);
+ msgb_free(msg);
+
+ /* verify that no message (and therefore no Detach Accept) has been
+ * sent by the SGSN */
+ /* OSMO_ASSERT(sgsn_tx_counter_old == sgsn_tx_counter); */
+
/* verify that things are gone */
OSMO_ASSERT(count(gprs_llme_list()) == 0);
ictx = sgsn_mm_ctx_by_tlli(local_tlli, &raid);
@@ -222,6 +284,7 @@ int main(int argc, char **argv)
test_llme();
test_gmm_detach();
+ test_gmm_detach_power_off();
printf("Done\n");
return 0;
}
diff --git a/openbsc/tests/sgsn/sgsn_test.ok b/openbsc/tests/sgsn/sgsn_test.ok
index 57326fab1..4c475d936 100644
--- a/openbsc/tests/sgsn/sgsn_test.ok
+++ b/openbsc/tests/sgsn/sgsn_test.ok
@@ -1,3 +1,4 @@
Testing LLME allocations
Testing GMM detach
+Testing GMM detach (power off)
Done