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-rw-r--r--tests/gtphub/gtphub_test.c1786
1 files changed, 1786 insertions, 0 deletions
diff --git a/tests/gtphub/gtphub_test.c b/tests/gtphub/gtphub_test.c
new file mode 100644
index 00000000..e7c27d2c
--- /dev/null
+++ b/tests/gtphub/gtphub_test.c
@@ -0,0 +1,1786 @@
+/* Test the GTP hub */
+
+/* (C) 2015 by sysmocom s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * Author: Neels Hofmeyr <nhofmeyr@sysmcom.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <unistd.h>
+
+#include <osmocom/core/utils.h>
+#include <osmocom/core/application.h>
+
+#include <openbsc/debug.h>
+
+#include <openbsc/gtphub.h>
+#include <gtp.h>
+#include <gtpie.h>
+
+#define ZERO_STRUCT(struct_pointer) memset(struct_pointer, '\0', \
+ sizeof(*(struct_pointer)))
+
+#define LVL2_ASSERT(exp) LVL2_ASSERT_R(exp, return 0)
+#define LVL2_ASSERT_R(exp, ret) \
+ if (!(exp)) { \
+ fprintf(stderr, "LVL2 Assert failed %s %s:%d\n", #exp, \
+ __FILE__, __LINE__); \
+ osmo_generate_backtrace(); \
+ ret; \
+ }
+
+/* Convenience makro, note: only within this C file. */
+#define LOG(label) \
+ { fprintf(stderr, "\n" label "\n"); \
+ printf(label "\n"); }
+
+void gtphub_init(struct gtphub *hub);
+void gtphub_free(struct gtphub *hub);
+
+void *osmo_gtphub_ctx;
+
+static void nr_mapping_free(struct expiring_item *e)
+{
+ struct nr_mapping *m = container_of(e, struct nr_mapping,
+ expiry_entry);
+ nr_mapping_del(m);
+ talloc_free(m);
+}
+
+static struct nr_mapping *nr_mapping_alloc(void)
+{
+ struct nr_mapping *m;
+ m = talloc(osmo_gtphub_ctx, struct nr_mapping);
+ nr_mapping_init(m);
+ m->expiry_entry.del_cb = nr_mapping_free;
+ return m;
+}
+
+static struct nr_mapping *nr_map_have(struct nr_map *map, void *origin,
+ nr_t orig, time_t now)
+{
+ struct nr_mapping *mapping;
+
+ mapping = nr_map_get(map, origin, orig);
+ if (!mapping) {
+ mapping = nr_mapping_alloc();
+ mapping->origin = origin;
+ mapping->orig = orig;
+ nr_map_add(map, mapping, now);
+ }
+
+ return mapping;
+}
+
+static nr_t nr_map_verify(const struct nr_map *map, void *origin, nr_t orig,
+ nr_t expect_repl)
+{
+ struct nr_mapping *m;
+ m = nr_map_get(map, origin, orig);
+
+ if (!m) {
+ printf("mapping not found for %p %d\n", origin, orig);
+ return 0;
+ }
+
+ if (m->repl != expect_repl) {
+ printf("mapping found, but nr mismatches: expect %d, got %d\n",
+ (int)expect_repl, (int)m->repl);
+ return 0;
+ }
+
+ return 1;
+}
+
+static int nr_map_verify_inv(const struct nr_map *map, nr_t repl,
+ void *expect_origin, nr_t expect_orig)
+{
+ struct nr_mapping *m;
+ m = nr_map_get_inv(map, repl);
+ if (!m) {
+ printf("mapping not found for %d\n", (int)repl);
+ return 0;
+ }
+
+ if (m->origin != expect_origin) {
+ printf("mapping found, but origin mismatches:"
+ " expect %p, got %p\n",
+ expect_origin, m->origin);
+ return 0;
+ }
+
+ if (m->orig != expect_orig) {
+ printf("mapping found, but nr mismatches: expect %d, got %d\n",
+ (int)expect_orig, (int)m->orig);
+ return 0;
+ }
+
+ return 1;
+}
+
+
+static void test_nr_map_basic(void)
+{
+ struct nr_pool _pool;
+ struct nr_pool *pool = &_pool;
+ struct nr_map _map;
+ struct nr_map *map = &_map;
+
+ nr_pool_init(pool, 1, 1000);
+ nr_map_init(map, pool, NULL);
+
+ OSMO_ASSERT(llist_empty(&map->mappings));
+
+#define TEST_N_HALF 100
+#define TEST_N (2*TEST_N_HALF)
+#define TEST_I 123
+ uint32_t i, check_i;
+ uint32_t m[TEST_N];
+ struct nr_mapping *mapping;
+
+ /* create half of TEST_N mappings from one origin */
+ void *origin1 = (void*)0x1234;
+ for (i = 0; i < TEST_N_HALF; i++) {
+ nr_t orig = TEST_I + i;
+ mapping = nr_map_have(map, origin1, orig, 0);
+ m[i] = mapping->repl;
+ OSMO_ASSERT(m[i] != 0);
+ OSMO_ASSERT(llist_count(&map->mappings) == (i+1));
+ for (check_i = 0; check_i < i; check_i++)
+ OSMO_ASSERT(m[check_i] != m[i]);
+ }
+ OSMO_ASSERT(llist_count(&map->mappings) == TEST_N_HALF);
+
+ /* create another TEST_N mappings with the same original numbers, but
+ * from a different origin */
+ void *origin2 = (void*)0x5678;
+ for (i = 0; i < TEST_N_HALF; i++) {
+ int i2 = TEST_N_HALF + i;
+ nr_t orig = TEST_I + i;
+ mapping = nr_map_have(map, origin2, orig, 0);
+ m[i2] = mapping->repl;
+ OSMO_ASSERT(m[i2] != 0);
+ OSMO_ASSERT(llist_count(&map->mappings) == (i2+1));
+ for (check_i = 0; check_i < i2; check_i++)
+ OSMO_ASSERT(m[check_i] != m[i2]);
+ }
+ OSMO_ASSERT(llist_count(&map->mappings) == TEST_N);
+
+ /* verify mappings */
+ for (i = 0; i < TEST_N_HALF; i++) {
+ nr_t orig = TEST_I + i;
+ {
+ OSMO_ASSERT(nr_map_verify(map, origin1, orig, m[i]));
+ OSMO_ASSERT(nr_map_verify_inv(map, m[i], origin1,
+ orig));
+ }
+ {
+ int i2 = TEST_N_HALF + i;
+ OSMO_ASSERT(nr_map_verify(map, origin2, orig, m[i2]));
+ OSMO_ASSERT(nr_map_verify_inv(map, m[i2], origin2,
+ orig));
+ }
+ }
+
+ /* remove all mappings */
+ for (i = 0; i < TEST_N_HALF; i++) {
+ OSMO_ASSERT(llist_count(&map->mappings) == (TEST_N - 2*i));
+
+ nr_t orig = TEST_I + i;
+ nr_mapping_del(nr_map_get(map, origin1, orig));
+ nr_mapping_del(nr_map_get(map, origin2, orig));
+ }
+ OSMO_ASSERT(llist_empty(&map->mappings));
+#undef TEST_N
+#undef TEST_I
+}
+
+static int nr_map_is(struct nr_map *map, const char *str)
+{
+ static char buf[4096];
+ char *pos = buf;
+ size_t len = sizeof(buf);
+ struct nr_mapping *m;
+ llist_for_each_entry(m, &map->mappings, entry) {
+ size_t wrote = snprintf(pos, len, "(%u->%u@%d), ",
+ m->orig,
+ m->repl,
+ (int)m->expiry_entry.expiry);
+ OSMO_ASSERT(wrote < len);
+ pos += wrote;
+ len -= wrote;
+ }
+ *pos = '\0';
+
+ if (strncmp(buf, str, sizeof(buf)) != 0) {
+ printf("FAILURE: nr_map_is() mismatches expected value:\n"
+ "expected: \"%s\"\n"
+ "is: \"%s\"\n",
+ str, buf);
+ return 0;
+ }
+ return 1;
+}
+
+static int test_nr_map_wrap_with(nr_t nr_min, nr_t nr_max, nr_t repl_last,
+ nr_t orig_start, int orig_n,
+ const char *expect)
+{
+ struct nr_pool _pool;
+ struct nr_pool *pool = &_pool;
+ struct nr_map _map;
+ struct nr_map *map = &_map;
+
+ nr_pool_init(pool, nr_min, nr_max);
+ nr_map_init(map, pool, NULL);
+
+ pool->last_nr = repl_last;
+
+ void *origin = (void*)0x1234;
+
+ int i;
+ for (i = 0; i < orig_n; i++)
+ LVL2_ASSERT(nr_map_have(map, origin, orig_start + i, 0));
+
+ LVL2_ASSERT(nr_map_is(map, expect));
+
+ nr_map_clear(map);
+ return 1;
+}
+
+static void test_nr_map_wrap(void)
+{
+ OSMO_ASSERT(test_nr_map_wrap_with(
+ 0, UINT_MAX, UINT_MAX - 2,
+ 1, 5,
+ "(1->4294967294@0), "
+ "(2->4294967295@0), "
+ "(3->0@0), "
+ "(4->1@0), "
+ "(5->2@0), "
+ ));
+ OSMO_ASSERT(test_nr_map_wrap_with(
+ 5, 10, 8,
+ 1, 5,
+ "(1->9@0), (2->10@0), (3->5@0), (4->6@0), (5->7@0), "
+ ));
+}
+
+static void test_expiry(void)
+{
+ struct expiry expiry;
+ struct nr_pool pool;
+ struct nr_map map;
+ int i;
+
+ expiry_init(&expiry, 30);
+ nr_pool_init(&pool, 1, 1000);
+ nr_map_init(&map, &pool, &expiry);
+ OSMO_ASSERT(nr_map_is(&map, ""));
+
+ /* tick on empty map */
+ OSMO_ASSERT(expiry_tick(&expiry, 10000) == 0);
+ OSMO_ASSERT(nr_map_is(&map, ""));
+
+#define MAP1 \
+ "(10->1@10040), " \
+ ""
+
+#define MAP2 \
+ "(20->2@10050), " \
+ "(21->3@10051), " \
+ "(22->4@10052), " \
+ "(23->5@10053), " \
+ "(24->6@10054), " \
+ "(25->7@10055), " \
+ "(26->8@10056), " \
+ "(27->9@10057), " \
+ ""
+
+#define MAP3 \
+ "(420->10@10072), " \
+ "(421->11@10072), " \
+ "(422->12@10072), " \
+ "(423->13@10072), " \
+ "(424->14@10072), " \
+ "(425->15@10072), " \
+ "(426->16@10072), " \
+ "(427->17@10072), " \
+ ""
+
+ /* add mapping at time 10010. */
+ nr_map_have(&map, 0, 10, 10010);
+ OSMO_ASSERT(nr_map_is(&map, MAP1));
+
+ /* tick on unexpired item. */
+ OSMO_ASSERT(expiry_tick(&expiry, 10010) == 0);
+ OSMO_ASSERT(expiry_tick(&expiry, 10011) == 0);
+ OSMO_ASSERT(nr_map_is(&map, MAP1));
+
+ /* Spread mappings at 10020, 10021, ... 10027. */
+ for (i = 0; i < 8; i++)
+ nr_map_have(&map, 0, 20 + i, 10020 + i);
+ OSMO_ASSERT(nr_map_is(&map, MAP1 MAP2));
+
+ /* tick on unexpired items. */
+ OSMO_ASSERT(expiry_tick(&expiry, 10030) == 0);
+ OSMO_ASSERT(expiry_tick(&expiry, 10039) == 0);
+ OSMO_ASSERT(nr_map_is(&map, MAP1 MAP2));
+
+ /* expire the first item (from 10010). */
+ OSMO_ASSERT(expiry_tick(&expiry, 10010 + 30) == 1);
+ OSMO_ASSERT(nr_map_is(&map, MAP2));
+
+ /* again nothing to expire */
+ OSMO_ASSERT(expiry_tick(&expiry, 10041) == 0);
+ OSMO_ASSERT(nr_map_is(&map, MAP2));
+
+ /* Mappings all at the same time. */
+ for (i = 0; i < 8; i++)
+ nr_map_have(&map, 0, 420 + i, 10042);
+ OSMO_ASSERT(nr_map_is(&map, MAP2 MAP3));
+
+ /* Eight to expire, were added further above to be chronologically
+ * correct, at 10020..10027. */
+ OSMO_ASSERT(expiry_tick(&expiry, 10027 + 30) == 8);
+ OSMO_ASSERT(nr_map_is(&map, MAP3));
+
+ /* again nothing to expire */
+ OSMO_ASSERT(expiry_tick(&expiry, 10027 + 30) == 0);
+ OSMO_ASSERT(nr_map_is(&map, MAP3));
+
+ /* Eight to expire, from 10042. Now at 10042 + 30: */
+ OSMO_ASSERT(expiry_tick(&expiry, 10042 + 30) == 8);
+ OSMO_ASSERT(nr_map_is(&map, ""));
+
+#undef MAP1
+#undef MAP2
+#undef MAP3
+}
+
+char resolve_ggsn_got_imsi[GSM23003_IMSI_MAX_DIGITS+1];
+char resolve_ggsn_got_ni[GSM_APN_LENGTH];
+
+struct osmo_sockaddr resolved_ggsn_addr;
+static int resolve_to_ggsn(const char *addr, uint16_t port)
+{
+ LVL2_ASSERT(osmo_sockaddr_init_udp(&resolved_ggsn_addr,
+ addr, port)
+ == 0);
+ return 1;
+}
+
+struct osmo_sockaddr resolved_sgsn_addr;
+static int resolve_to_sgsn(const char *addr, uint16_t port)
+{
+ LVL2_ASSERT(osmo_sockaddr_init_udp(&resolved_sgsn_addr,
+ addr, port)
+ == 0);
+ return 1;
+}
+
+struct osmo_sockaddr sgsn_sender;
+static int send_from_sgsn(const char *addr, uint16_t port)
+{
+ LVL2_ASSERT(osmo_sockaddr_init_udp(&sgsn_sender,
+ addr, port)
+ == 0);
+ return 1;
+}
+
+struct osmo_sockaddr ggsn_sender;
+static int send_from_ggsn(const char *addr, uint16_t port)
+{
+ LVL2_ASSERT(osmo_sockaddr_init_udp(&ggsn_sender,
+ addr, port)
+ == 0);
+ return 1;
+}
+
+
+/* override, requires '-Wl,--wrap=gtphub_resolve_ggsn_addr' */
+struct gtphub_peer_port *__real_gtphub_resolve_ggsn_addr(struct gtphub *hub,
+ const char *imsi_str,
+ const char *apn_ni_str);
+
+struct gtphub_peer_port *__wrap_gtphub_resolve_ggsn_addr(struct gtphub *hub,
+ const char *imsi_str,
+ const char *apn_ni_str)
+{
+ struct gsn_addr resolved_gsna;
+ uint16_t resolved_port;
+
+ OSMO_ASSERT(gsn_addr_from_sockaddr(&resolved_gsna, &resolved_port,
+ &resolved_ggsn_addr) == 0);
+
+ struct gtphub_peer_port *pp;
+ pp = gtphub_port_have(hub, &hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL],
+ &resolved_gsna, resolved_port);
+ printf("- __wrap_gtphub_resolve_ggsn_addr():\n"
+ " returning GGSN addr from imsi %s ni %s: %s\n",
+ imsi_str, apn_ni_str, gtphub_port_str(pp));
+
+ if (!imsi_str)
+ imsi_str = "(null)";
+ osmo_strlcpy(resolve_ggsn_got_imsi, imsi_str,
+ sizeof(resolve_ggsn_got_imsi));
+
+ if (!apn_ni_str)
+ apn_ni_str = "(null)";
+ osmo_strlcpy(resolve_ggsn_got_ni, apn_ni_str,
+ sizeof(resolve_ggsn_got_ni));
+
+ return pp;
+}
+
+#define was_resolved_for(IMSI,NI) _was_resolved_for(IMSI, NI, __FILE__, __LINE__)
+static int _was_resolved_for(const char *imsi, const char *ni, const char
+ *file, int line)
+{
+ int cmp0 = strncmp(imsi, resolve_ggsn_got_imsi,
+ sizeof(resolve_ggsn_got_imsi));
+
+ if (cmp0 != 0) {
+ printf("\n%s:%d: was_resolved_for(): MISMATCH for IMSI\n"
+ " expecting: '%s'\n"
+ " got: '%s'\n\n",
+ file,
+ line,
+ imsi, resolve_ggsn_got_imsi);
+ }
+
+ int cmp1 = strncmp(ni, resolve_ggsn_got_ni,
+ sizeof(resolve_ggsn_got_ni));
+ if (cmp1 != 0) {
+ printf("\n%s:%d: was_resolved_for(): MISMATCH for NI\n"
+ " expecting: '%s'\n"
+ " got: '%s'\n\n",
+ file,
+ line,
+ ni, resolve_ggsn_got_ni);
+ }
+
+ return (cmp0 == 0) && (cmp1 == 0);
+}
+
+/* override, requires '-Wl,--wrap=gtphub_ares_init' */
+int __real_gtphub_ares_init(struct gtphub *hub);
+
+int __wrap_gtphub_ares_init(struct gtphub *hub)
+{
+ /* Do nothing. */
+ return 0;
+}
+
+/* override, requires '-Wl,--wrap=gtphub_write' */
+int __real_gtphub_write(const struct osmo_fd *to,
+ const struct osmo_sockaddr *to_addr,
+ const uint8_t *buf, size_t buf_len);
+
+int __wrap_gtphub_write(const struct osmo_fd *to,
+ const struct osmo_sockaddr *to_addr,
+ const uint8_t *buf, size_t buf_len)
+{
+ printf("Out-of-band gtphub_write(%d):\n"
+ "to %s\n"
+ "%s\n",
+ (int)buf_len,
+ osmo_sockaddr_to_str(to_addr),
+ osmo_hexdump(buf, buf_len));
+ return 0;
+}
+
+#define buf_len 1024
+static uint8_t buf[buf_len];
+static uint8_t *reply_buf;
+
+static unsigned int msg(const char *hex)
+{
+ unsigned int l = osmo_hexparse(hex, buf, buf_len);
+ OSMO_ASSERT(l > 0);
+ return l;
+}
+
+/* Compare static buf to given string constant. The amount of bytes is obtained
+ * from parsing the GTP header in buf. hex must match an osmo_hexdump() of the
+ * desired message. Return 1 if size and content match. */
+#define reply_is(MSG) _reply_is(MSG, __FILE__, __LINE__)
+static int _reply_is(const char *hex, const char *file, int line)
+{
+ struct gtp1_header_long *h = (void*)reply_buf;
+ int len = ntoh16(h->length) + 8;
+ const char *dump = osmo_hexdump_nospc(reply_buf, len);
+ int cmp = strcmp(dump, hex);
+
+ if (cmp != 0) {
+ printf("\n%s:%d: reply_is(): MISMATCH\n"
+ " expecting:\n'%s'\n"
+ " got:\n'%s'\n\n",
+ file,
+ line,
+ hex, dump);
+ int i;
+ int l = strlen(hex);
+ int m = strlen(dump);
+ if (m < l)
+ l = m;
+ for (i = 0; i < l; i++) {
+ if (hex[i] != dump[i]) {
+ printf("First mismatch at position %d:\n"
+ " %s\n %s\n", i, hex + i, dump + i);
+ break;
+ }
+ }
+ }
+ return cmp == 0;
+}
+
+#define same_addr(GOT, EXPECTED) _same_addr((GOT),(EXPECTED), __FILE__, __LINE__)
+static int _same_addr(const struct osmo_sockaddr *got,
+ const struct osmo_sockaddr *expected,
+ const char *file, int line)
+{
+ int cmp = osmo_sockaddr_cmp(got, expected);
+ if (!cmp)
+ return 1;
+ char buf[256];
+ printf("\n%s:%d: addr_is(): MISMATCH\n"
+ " expecting: '%s'\n"
+ " got: '%s'\n\n",
+ file, line,
+ osmo_sockaddr_to_str(expected),
+ osmo_sockaddr_to_strb(got, buf, sizeof(buf)));
+ return 0;
+}
+
+
+time_t now;
+static struct gtphub _hub;
+static struct gtphub *hub = &_hub;
+
+static int setup_test_hub()
+{
+ /* Not really needed, but to make 100% sure... */
+ ZERO_STRUCT(hub);
+
+ gtphub_init(hub);
+
+ /* Tell this mock gtphub its local address for this test. */
+ LVL2_ASSERT(gsn_addr_from_str(&hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_CTRL].local_addr,
+ "127.0.1.1") == 0);
+ LVL2_ASSERT(gsn_addr_from_str(&hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_USER].local_addr,
+ "127.0.1.2") == 0);
+ LVL2_ASSERT(gsn_addr_from_str(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL].local_addr,
+ "127.0.2.1") == 0);
+ LVL2_ASSERT(gsn_addr_from_str(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_USER].local_addr,
+ "127.0.2.2") == 0);
+
+ hub->restart_counter = 0x23;
+ now = 345;
+ LVL2_ASSERT(send_from_sgsn("192.168.42.23", 423));
+ LVL2_ASSERT(resolve_to_ggsn("192.168.43.34", 2123));
+ LVL2_ASSERT(send_from_ggsn("192.168.43.34", 434));
+ LVL2_ASSERT(resolve_to_sgsn("192.168.42.23", 2123));
+
+#define GGSNS_CTRL_FD 1
+#define GGSNS_USER_FD 2
+#define SGSNS_CTRL_FD 3
+#define SGSNS_USER_FD 4
+ hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL].ofd.priv_nr = GGSNS_CTRL_FD;
+ hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_USER].ofd.priv_nr = GGSNS_USER_FD;
+ hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_CTRL].ofd.priv_nr = SGSNS_CTRL_FD;
+ hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_USER].ofd.priv_nr = SGSNS_USER_FD;
+
+ return 1;
+}
+
+static int clear_test_hub()
+{
+ /* expire all */
+ gtphub_gc(hub, now + (60 * GTPH_EXPIRE_SLOWLY_MINUTES) + 1);
+
+ int plane_idx;
+ plane_idx = GTPH_PLANE_CTRL;
+ LVL2_ASSERT(llist_empty(&hub->to_gsns[GTPH_SIDE_GGSN][plane_idx].peers));
+ LVL2_ASSERT(llist_empty(&hub->to_gsns[GTPH_SIDE_SGSN][plane_idx].peers));
+ plane_idx = GTPH_PLANE_USER;
+ LVL2_ASSERT(llist_empty(&hub->to_gsns[GTPH_SIDE_GGSN][plane_idx].peers));
+ LVL2_ASSERT(llist_empty(&hub->to_gsns[GTPH_SIDE_SGSN][plane_idx].peers));
+
+ LVL2_ASSERT(llist_empty(&hub->tunnels));
+ LVL2_ASSERT(llist_empty(&hub->pending_deletes));
+ LVL2_ASSERT(llist_empty(&hub->ggsn_lookups));
+ LVL2_ASSERT(llist_empty(&hub->resolved_ggsns));
+
+ gtphub_free(hub);
+ return 1;
+}
+
+static int tunnels_are(const char *expect)
+{
+ static char buf[4096];
+ char *pos = buf;
+ size_t len = sizeof(buf);
+ struct gtphub_tunnel *t;
+ llist_for_each_entry(t, &hub->tunnels, entry) {
+ size_t wrote = snprintf(pos, len, "%s @%d\n",
+ gtphub_tunnel_str(t),
+ (int)t->expiry_entry.expiry);
+ LVL2_ASSERT(wrote < len);
+ pos += wrote;
+ len -= wrote;
+ }
+ *pos = '\0';
+
+ if (strncmp(buf, expect, sizeof(buf)) != 0) {
+ fprintf(stderr, "FAILURE: tunnels_are() mismatches expected value:\n"
+ "EXPECTED:\n%s\n"
+ "IS:\n%s\n",
+ expect, buf);
+ LVL2_ASSERT("tunnels do not match expected listing.");
+ return 0;
+ }
+ return 1;
+}
+
+static void test_echo(void)
+{
+ LOG("test_echo");
+ OSMO_ASSERT(setup_test_hub());
+
+ now = 123;
+
+ struct osmo_fd *to_ofd;
+ struct osmo_sockaddr to_addr;
+ struct gtphub_peer_port *pp;
+ int send;
+
+ const char *gtp_ping_from_sgsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "01" /* type 01: Echo request */
+ "0004" /* length of 4 after header TEI */
+ "00000000" /* header TEI == 0 in Echo */
+ "abcd" /* some 2 octet sequence nr */
+ "0000" /* N-PDU 0, no extension header (why is this here?) */
+ ;
+
+ const char *gtp_pong_to_sgsn =
+ "32"
+ "02" /* type 02: Echo response */
+ "0006" /* length of 6 after header TEI */
+ "00000000" /* header TEI == 0 in Echo */
+ "abcd" /* same sequence nr */
+ "0000"
+ "0e23" /* Recovery with restart counter */
+ ;
+
+ to_ofd = NULL;
+ ZERO_STRUCT(&to_addr);
+ send = gtphub_handle_buf(hub, GTPH_SIDE_SGSN, GTPH_PLANE_CTRL,
+ &sgsn_sender, buf, msg(gtp_ping_from_sgsn),
+ now, &reply_buf, &to_ofd, &to_addr);
+ OSMO_ASSERT(send > 0);
+ OSMO_ASSERT(to_addr.l);
+ OSMO_ASSERT(same_addr(&to_addr, &sgsn_sender));
+ OSMO_ASSERT(to_ofd && (to_ofd->priv_nr == SGSNS_CTRL_FD));
+ OSMO_ASSERT(reply_is(gtp_pong_to_sgsn));
+
+ pp = gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_CTRL],
+ &sgsn_sender);
+ /* We don't record Echo peers. */
+ OSMO_ASSERT(!pp);
+
+ const char *gtp_ping_from_ggsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "01" /* type 01: Echo request */
+ "0004" /* length of 4 after header TEI */
+ "00000000" /* header TEI == 0 in Echo */
+ "cdef" /* some 2 octet sequence nr */
+ "0000" /* N-PDU 0, no extension header (why is this here?) */
+ ;
+
+ const char *gtp_pong_to_ggsn =
+ "32"
+ "02" /* type 02: Echo response */
+ "0006" /* length of 6 after header TEI */
+ "00000000" /* header TEI == 0 in Echo */
+ "cdef" /* same sequence nr */
+ "0000"
+ "0e23" /* Recovery with restart counter */
+ ;
+
+ to_ofd = NULL;
+ ZERO_STRUCT(&to_addr);
+ send = gtphub_handle_buf(hub, GTPH_SIDE_GGSN, GTPH_PLANE_CTRL,
+ &ggsn_sender, buf, msg(gtp_ping_from_ggsn),
+ now, &reply_buf, &to_ofd, &to_addr);
+ OSMO_ASSERT(send > 0);
+ OSMO_ASSERT(same_addr(&to_addr, &ggsn_sender));
+ OSMO_ASSERT(to_ofd && (to_ofd->priv_nr == GGSNS_CTRL_FD));
+ OSMO_ASSERT(reply_is(gtp_pong_to_ggsn));
+
+ pp = gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL],
+ &sgsn_sender);
+ OSMO_ASSERT(!pp);
+
+
+ /* And all the same on the user plane. */
+
+ to_ofd = NULL;
+ ZERO_STRUCT(&to_addr);
+ send = gtphub_handle_buf(hub, GTPH_SIDE_SGSN, GTPH_PLANE_USER,
+ &sgsn_sender, buf, msg(gtp_ping_from_sgsn),
+ now, &reply_buf, &to_ofd, &to_addr);
+ OSMO_ASSERT(send > 0);
+ OSMO_ASSERT(to_addr.l);
+ OSMO_ASSERT(same_addr(&to_addr, &sgsn_sender));
+ OSMO_ASSERT(to_ofd && (to_ofd->priv_nr == SGSNS_USER_FD));
+ OSMO_ASSERT(reply_is(gtp_pong_to_sgsn));
+
+ pp = gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_USER],
+ &sgsn_sender);
+ OSMO_ASSERT(!pp);
+
+ to_ofd = NULL;
+ ZERO_STRUCT(&to_addr);
+ send = gtphub_handle_buf(hub, GTPH_SIDE_GGSN, GTPH_PLANE_USER,
+ &ggsn_sender, buf, msg(gtp_ping_from_ggsn),
+ now, &reply_buf, &to_ofd, &to_addr);
+ OSMO_ASSERT(send > 0);
+ OSMO_ASSERT(same_addr(&to_addr, &ggsn_sender));
+ OSMO_ASSERT(to_ofd && (to_ofd->priv_nr == GGSNS_USER_FD));
+ OSMO_ASSERT(reply_is(gtp_pong_to_ggsn));
+
+ pp = gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_USER],
+ &sgsn_sender);
+ OSMO_ASSERT(!pp);
+
+
+ OSMO_ASSERT(clear_test_hub());
+}
+
+
+#define MSG_PDP_CTX_REQ(len, seq, restart, imsi, tei_u, tei_c, apn, gsn_c, gsn_u) \
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr. */ \
+ "10" /* type 16: Create PDP Context Request */ \
+ len /* msg length = 8 + len (2 octets) */ \
+ "00000000" /* No TEI yet */ \
+ seq /* Sequence nr (2 octets) */ \
+ "00" /* N-PDU 0 */ \
+ "00" /* No extensions */ \
+ /* IEs */ \
+ "0e" restart /* 14: Recovery (restart counter: 1 octet) */ \
+ "02" /* 2 = IMSI */ \
+ imsi /* (8 octets) */ \
+ "0f01" /* 15: Selection mode = MS provided APN, subscription not verified*/ \
+ "10" /* 16: TEI Data I */ \
+ tei_u /* (4 octets) */ \
+ "11" /* 17: TEI Control Plane */ \
+ tei_c /* (4 octets) */ \
+ "1400" /* 20: NSAPI = 0*/ \
+ "1a" /* 26: Charging Characteristics */ \
+ "0800" \
+ "80" /* 128: End User Address */ \
+ "0002" /* length = 2: empty PDP Address */ \
+ "f121" /* spare 0xf0, PDP organization 1, PDP type number 0x21 = 33 */ \
+ "83" /* 131: Access Point Name */ \
+ apn /* (2 octets length, N octets encoded APN-NI) */ \
+ "84" /* 132: Protocol Configuration Options */ \
+ "0015" /* length = 21 */ \
+ "80c0231101010011036d69670868656d6d656c6967" \
+ "85" /* 133: GSN Address */ \
+ gsn_c /* (2 octets length, N octets addr) */ \
+ "85" /* 133: GSN Address (second entry) */ \
+ gsn_u /* (2 octets length, N octets addr) */ \
+ "86" /* 134: MS International PSTN/ISDN Number (MSISDN) */ \
+ "0007" /* length */ \
+ "916407123254f6" /* 1946702123456(f) */ \
+ "87" /* 135: Quality of Service (QoS) Profile */ \
+ "0004" /* length */ \
+ "00" /* priority */ \
+ "0b921f" /* QoS profile data */
+
+#define MSG_PDP_CTX_RSP(len, tei_h, seq, restart, tei_u, tei_c, gsn_c, gsn_u) \
+ "32" \
+ "11" /* Create PDP Context Response */ \
+ len /* msg length = 8 + len (2 octets) */ \
+ tei_h /* destination TEI (sent in req above) */ \
+ seq /* mapped seq */ \
+ "00" "00" \
+ /* IEs */ \
+ "01" /* 1: Cause */ \
+ "80" /* value = 0b10000000 = response, no rejection. */ \
+ "08" /* 8: Reordering Required */ \
+ "00" /* not required. */ \
+ "0e" restart /* 14: Recovery */ \
+ "10" /* 16: TEI Data I */ \
+ tei_u \
+ "11" /* 17: TEI Control */ \
+ tei_c \
+ "7f" /* 127: Charging ID */ \
+ "00000001" \
+ "80" /* 128: End User Address */ \
+ "0006" /* length = 6 */ \
+ "f121" /* spare 0xf0, PDP organization 1, PDP type number 0x21 = 33 */ \
+ "7f000002" \
+ "84" /* 132: Protocol Configuration Options */ \
+ "0014" /* len = 20 */ \
+ "8080211002000010810608080808830600000000" \
+ "85" /* 133: GSN Address (Ctrl) */ \
+ gsn_c \
+ "85" /* 133: GSN Address (User) */ \
+ gsn_u \
+ "87" /* 135: Quality of Service (QoS) Profile */ \
+ "0004" /* length */ \
+ "00" /* priority */ \
+ "0b921f" /* QoS profile data */
+
+#define msg_from_sgsn_c(A,B,C,D) msg_from_sgsn(GTPH_PLANE_CTRL, A,B,C,D)
+#define msg_from_sgsn_u(A,B,C,D) msg_from_sgsn(GTPH_PLANE_USER, A,B,C,D)
+static int msg_from_sgsn(int plane_idx,
+ struct osmo_sockaddr *_sgsn_sender,
+ struct osmo_sockaddr *ggsn_receiver,
+ const char *hex_from_sgsn,
+ const char *hex_to_ggsn)
+{
+ struct osmo_fd *ggsn_ofd = NULL;
+ struct osmo_sockaddr ggsn_addr;
+ int send;
+ send = gtphub_handle_buf(hub, GTPH_SIDE_SGSN, plane_idx, _sgsn_sender,
+ buf, msg(hex_from_sgsn), now,
+ &reply_buf, &ggsn_ofd, &ggsn_addr);
+ LVL2_ASSERT(send > 0);
+ LVL2_ASSERT(same_addr(&ggsn_addr, ggsn_receiver));
+ LVL2_ASSERT(reply_is(hex_to_ggsn));
+ return 1;
+}
+
+#define msg_from_ggsn_c(A,B,C,D) msg_from_ggsn(GTPH_PLANE_CTRL, A,B,C,D)
+#define msg_from_ggsn_u(A,B,C,D) msg_from_ggsn(GTPH_PLANE_USER, A,B,C,D)
+static int msg_from_ggsn(int plane_idx,
+ struct osmo_sockaddr *ggsn_sender,
+ struct osmo_sockaddr *sgsn_receiver,
+ const char *msg_from_ggsn,
+ const char *msg_to_sgsn)
+{
+ struct osmo_fd *sgsn_ofd;
+ struct osmo_sockaddr sgsn_addr;
+ int send;
+ send = gtphub_handle_buf(hub, GTPH_SIDE_GGSN, plane_idx, ggsn_sender,
+ buf, msg(msg_from_ggsn), now,
+ &reply_buf, &sgsn_ofd, &sgsn_addr);
+ if (*msg_to_sgsn) {
+ LVL2_ASSERT(send > 0);
+ LVL2_ASSERT(same_addr(&sgsn_addr, sgsn_receiver));
+ LVL2_ASSERT(reply_is(msg_to_sgsn));
+ }
+ else
+ LVL2_ASSERT(send == 0);
+ return 1;
+}
+
+static int create_pdp_ctx()
+{
+ const char *gtp_req_from_sgsn =
+ MSG_PDP_CTX_REQ("0068",
+ "abcd",
+ "60",
+ "42000121436587f9",
+ "00000123",
+ "00000321",
+ "0009""08696e7465726e6574", /* "(8)internet" */
+ "0004""c0a82a17", /* same as default sgsn_sender */
+ "0004""c0a82a17"
+ );
+ const char *gtp_req_to_ggsn =
+ MSG_PDP_CTX_REQ("0068",
+ "6d31", /* mapped seq ("abcd") */
+ "23",
+ "42000121436587f9",
+ "00000001", /* Data I: tunnel's TEI */
+ "00000001", /* Control: tunnel's TEI */
+ "0009""08696e7465726e6574",
+ "0004""7f000201", /* replaced with gtphub's ggsn ctrl */
+ "0004""7f000202" /* replaced with gtphub's ggsn user */
+ );
+
+ LVL2_ASSERT(msg_from_sgsn_c(&sgsn_sender,
+ &resolved_ggsn_addr,
+ gtp_req_from_sgsn,
+ gtp_req_to_ggsn));
+ LVL2_ASSERT(was_resolved_for("240010123456789", "internet"));
+
+ LVL2_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)"
+ " @21945\n"));
+
+ const char *gtp_resp_from_ggsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000001", /* destination TEI (sent in req above) */
+ "6d31", /* mapped seq */
+ "01", /* restart */
+ "00000567", /* TEI U */
+ "00000765", /* TEI C */
+ "0004""c0a82b22", /* GSN addresses */
+ "0004""c0a82b22" /* (== resolved_ggsn_addr) */
+ );
+ const char *gtp_resp_to_sgsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000321", /* unmapped TEI ("001") */
+ "abcd", /* unmapped seq ("6d31") */
+ "23",
+ "00000001", /* mapped TEI from GGSN ("567") */
+ "00000001", /* mapped TEI from GGSN ("765") */
+ "0004""7f000101", /* gtphub's address towards SGSNs (Ctrl) */
+ "0004""7f000102" /* gtphub's address towards SGSNs (User) */
+ );
+ /* The response should go back to whichever port the request came from
+ * (unmapped by sequence nr) */
+ LVL2_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr,
+ &sgsn_sender,
+ gtp_resp_from_ggsn,
+ gtp_resp_to_sgsn));
+
+ return 1;
+}
+
+#define MSG_DEL_PDP_CTX_REQ(tei, seq) \
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr. */ \
+ "14" /* type 20: Delete PDP Context Request */ \
+ "0008" /* msg length = 8 + len (2 octets) */ \
+ tei /* TEI Ctrl */ \
+ seq /* Sequence nr (2 octets) */ \
+ "00" /* N-PDU 0 */ \
+ "00" /* No extensions */ \
+ /* IEs */ \
+ "13fe" /* 19: Teardown ind = 0 */ \
+ "1400" /* 20: NSAPI = 0*/ \
+
+#define MSG_DEL_PDP_CTX_RSP(tei, seq) \
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr. */ \
+ "15" /* type 21: Delete PDP Context Response */ \
+ "0006" /* msg length = 8 + len (2 octets) */ \
+ tei /* TEI Ctrl */ \
+ seq /* Sequence nr (2 octets) */ \
+ "00" /* N-PDU 0 */ \
+ "00" /* No extensions */ \
+ /* IEs */ \
+ "01" /* 1: Cause */ \
+ "80" /* value = 0b10000000 = response, no rejection. */ \
+
+static int delete_pdp_ctx_from_sgsn(void)
+{
+ now += GTPH_EXPIRE_QUICKLY_SECS + 1;
+ gtphub_gc(hub, now);
+
+ LVL2_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21945\n"));
+
+ /* TEI Ctrl from above and next sequence after abcd. */
+ const char *gtp_req_from_sgsn = MSG_DEL_PDP_CTX_REQ("00000001", "abce");
+ const char *gtp_req_to_ggsn = MSG_DEL_PDP_CTX_REQ("00000765", "6d32");
+
+ LVL2_ASSERT(msg_from_sgsn_c(&sgsn_sender,
+ &resolved_ggsn_addr,
+ gtp_req_from_sgsn,
+ gtp_req_to_ggsn));
+
+ /* 21945 + 31 = 21976 */
+ LVL2_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21976\n"));
+
+ const char *gtp_resp_from_ggsn =
+ MSG_DEL_PDP_CTX_RSP("00000001", "6d32");
+ const char *gtp_resp_to_sgsn =
+ MSG_DEL_PDP_CTX_RSP("00000321", "abce");
+
+ /* The response should go back to whichever port the request came from
+ * (unmapped by sequence nr) */
+ LVL2_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr,
+ &sgsn_sender,
+ gtp_resp_from_ggsn,
+ gtp_resp_to_sgsn));
+
+ LVL2_ASSERT(tunnels_are(""));
+
+ return 1;
+}
+
+static int delete_pdp_ctx_from_ggsn(void)
+{
+ now += GTPH_EXPIRE_QUICKLY_SECS + 1;
+ gtphub_gc(hub, now);
+
+ LVL2_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21945\n"));
+
+ /* TEI Ctrl from above and next sequence after abcd. */
+ const char *gtp_req_from_ggsn = MSG_DEL_PDP_CTX_REQ("00000001", "5432");
+ const char *gtp_req_to_sgsn = MSG_DEL_PDP_CTX_REQ("00000321", "6d31");
+
+ LVL2_ASSERT(msg_from_ggsn_c(&ggsn_sender,
+ &resolved_sgsn_addr,
+ gtp_req_from_ggsn,
+ gtp_req_to_sgsn));
+
+ /* 21945 + 31 = 21976 */
+ LVL2_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21976\n"));
+
+ const char *gtp_resp_from_sgsn =
+ MSG_DEL_PDP_CTX_RSP("00000001", "6d31");
+ const char *gtp_resp_to_ggsn =
+ MSG_DEL_PDP_CTX_RSP("00000765", "5432");
+
+ /* The response should go back to whichever port the request came from
+ * (unmapped by sequence nr) */
+ LVL2_ASSERT(msg_from_sgsn_c(&resolved_sgsn_addr,
+ &ggsn_sender,
+ gtp_resp_from_sgsn,
+ gtp_resp_to_ggsn));
+
+ LVL2_ASSERT(tunnels_are(""));
+
+ return 1;
+}
+
+static void test_one_pdp_ctx(int del_from_side)
+{
+ if (del_from_side == GTPH_SIDE_SGSN)
+ LOG("test_one_pdp_ctx (del from SGSN)")
+ else LOG("test_one_pdp_ctx (del from GGSN)");
+ OSMO_ASSERT(setup_test_hub());
+
+ OSMO_ASSERT(create_pdp_ctx());
+
+ struct gtphub_peer_port *ggsn_port =
+ gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL],
+ &resolved_ggsn_addr);
+ OSMO_ASSERT(ggsn_port);
+ struct gtphub_peer *ggsn = ggsn_port->peer_addr->peer;
+ /* now == 345; now + 30 == 375.
+ * seq mapping from above:
+ * 0xabcd == 43981 (sent in the packet)
+ * 0x6d31 == 27953 (harcoded seq mapping start val) */
+ OSMO_ASSERT(nr_map_is(&ggsn->seq_map, "(43981->27953@375), "));
+
+ /* now == 345; now + (6 * 60 * 60) == 21600 + 345 == 21945.
+ * 0x00000321 == 801 (TEI from SGSN Ctrl)
+ * 0x00000123 == 291 (TEI from SGSN User)
+ * 0x00000765 == 1893 (TEI from GGSN Ctrl)
+ * 0x00000567 == 1383 (TEI from GGSN User)
+ * Mapped TEIs should be 1 and 2. */
+ OSMO_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21945\n"));
+
+ if (del_from_side == GTPH_SIDE_SGSN) {
+ OSMO_ASSERT(delete_pdp_ctx_from_sgsn());
+ } else {
+ OSMO_ASSERT(delete_pdp_ctx_from_ggsn());
+ }
+ OSMO_ASSERT(tunnels_are(""));
+
+ OSMO_ASSERT(clear_test_hub());
+}
+
+static void test_user_data(void)
+{
+ LOG("test_user_data");
+
+ OSMO_ASSERT(setup_test_hub());
+
+ OSMO_ASSERT(create_pdp_ctx());
+
+ /* now == 345; now + (6 * 60 * 60) == 21600 + 345 == 21945. */
+ OSMO_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21945\n"));
+
+ LOG("- user data starts");
+ /* Now expect default port numbers for User plane. */
+ resolve_to_ggsn("192.168.43.34", 2152);
+ resolve_to_sgsn("192.168.42.23", 2152);
+
+ /* 10 minutes later */
+ now += 600;
+
+ const char *u_from_ggsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "ff" /* type 255: G-PDU */
+ "0058" /* length: 88 + 8 octets == 96 */
+ "00000001" /* mapped TEI for SGSN from create_pdp_ctx() */
+ "0070" /* seq */
+ "0000" /* No extensions */
+ /* User data (ICMP packet), 96 - 12 = 84 octets */
+ "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8"
+ "4156000000007241010000000000101112131415161718191a1b1c1d1e1f"
+ "202122232425262728292a2b2c2d2e2f3031323334353637"
+ ;
+ const char *u_to_sgsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "ff" /* type 255: G-PDU */
+ "0058" /* length: 88 + 8 octets == 96 */
+ "00000123" /* unmapped User TEI */
+ "6d31" /* new mapped seq */
+ "0000"
+ "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8"
+ "4156000000007241010000000000101112131415161718191a1b1c1d1e1f"
+ "202122232425262728292a2b2c2d2e2f3031323334353637"
+ ;
+
+ /* This depends on create_pdp_ctx() sending resolved_sgsn_addr as GSN
+ * Address IEs in the GGSN's Create PDP Ctx Response. */
+ OSMO_ASSERT(msg_from_ggsn_u(&ggsn_sender,
+ &resolved_sgsn_addr,
+ u_from_ggsn,
+ u_to_sgsn));
+
+ /* Make sure the user plane messages have refreshed the TEI mapping
+ * timeouts: 21945 + 600 == 22545. */
+ OSMO_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @22545\n"));
+
+ const char *u_from_sgsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "ff" /* type 255: G-PDU */
+ "0058" /* length: 88 + 8 octets == 96 */
+ "00000001" /* mapped User TEI for GGSN from create_pdp_ctx() */
+ "1234" /* unknown seq */
+ "0000" /* No extensions */
+ /* User data (ICMP packet), 96 - 12 = 84 octets */
+ "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8"
+ "4156000000007241010000000000101112131415161718191a1b1c1d1e1f"
+ "202122232425262728292a2b2c2d2e2f3031323334353637"
+ ;
+ const char *u_to_ggsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "ff" /* type 255: G-PDU */
+ "0058" /* length: 88 + 8 octets == 96 */
+ "00000567" /* unmapped User TEI */
+ "6d31" /* unmapped seq */
+ "0000"
+ "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8"
+ "4156000000007241010000000000101112131415161718191a1b1c1d1e1f"
+ "202122232425262728292a2b2c2d2e2f3031323334353637"
+ ;
+
+ OSMO_ASSERT(msg_from_sgsn_u(&sgsn_sender,
+ &resolved_ggsn_addr,
+ u_from_sgsn,
+ u_to_ggsn));
+
+ /* Make sure the user plane messages have refreshed the TEI mapping
+ * timeouts: 21945 + 600 == 22545. Both timeouts refreshed: */
+ OSMO_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @22545\n"));
+
+ OSMO_ASSERT(clear_test_hub());
+}
+
+static void test_reused_tei(void)
+{
+ LOG("test_reused_tei");
+
+ OSMO_ASSERT(setup_test_hub());
+
+ OSMO_ASSERT(create_pdp_ctx());
+
+ const char *gtp_req_from_sgsn =
+ MSG_PDP_CTX_REQ("0068",
+ "abce", /* Next seq */
+ "60",
+ "42000121436587f9",
+ "00000123", /* Same TEIs as before */
+ "00000321",
+ "0009""08696e7465726e6574", /* "(8)internet" */
+ "0004""c0a82a17", /* same as default sgsn_sender */
+ "0004""c0a82a17"
+ );
+ const char *gtp_req_to_ggsn =
+ MSG_PDP_CTX_REQ("0068",
+ "6d32", /* mapped seq ("abce") */
+ "23",
+ "42000121436587f9",
+ "00000002", /* mapped TEI Data I ("123") */
+ "00000002", /* mapped TEI Control ("321") */
+ "0009""08696e7465726e6574",
+ "0004""7f000201", /* replaced with gtphub's ggsn ctrl */
+ "0004""7f000202" /* replaced with gtphub's ggsn user */
+ );
+
+ OSMO_ASSERT(msg_from_sgsn_c(&sgsn_sender,
+ &resolved_ggsn_addr,
+ gtp_req_from_sgsn,
+ gtp_req_to_ggsn));
+ OSMO_ASSERT(was_resolved_for("240010123456789", "internet"));
+
+ OSMO_ASSERT(tunnels_are(
+ "TEI=2:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)"
+ " @21945\n"));
+
+ const char *gtp_resp_from_ggsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000002", /* destination TEI (sent in req above) */
+ "6d32", /* mapped seq */
+ "01", /* restart */
+ "00000567", /* TEI U */
+ "00000765", /* TEI C */
+ "0004""c0a82b22", /* GSN addresses */
+ "0004""c0a82b22" /* (== resolved_ggsn_addr) */
+ );
+ const char *gtp_resp_to_sgsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000321", /* unmapped TEI ("001") */
+ "abce", /* unmapped seq ("6d32") */
+ "23",
+ "00000002", /* mapped TEI from GGSN ("567") */
+ "00000002", /* mapped TEI from GGSN ("765") */
+ "0004""7f000101", /* gtphub's address towards SGSNs (Ctrl) */
+ "0004""7f000102" /* gtphub's address towards SGSNs (User) */
+ );
+ /* The response should go back to whichever port the request came from
+ * (unmapped by sequence nr) */
+ OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr,
+ &sgsn_sender,
+ gtp_resp_from_ggsn,
+ gtp_resp_to_sgsn));
+
+ OSMO_ASSERT(clear_test_hub());
+}
+
+static void test_peer_restarted(void)
+{
+ LOG("test_peer_restarted");
+
+ OSMO_ASSERT(setup_test_hub());
+
+ OSMO_ASSERT(create_pdp_ctx());
+
+ now += 10;
+
+ const char *gtp_req_from_sgsn =
+ MSG_PDP_CTX_REQ("0068",
+ "1234", /* brand new seq */
+ "61", /* DIFFERING restart counter */
+ "42000121436587f9",
+ "00000abc",
+ "00000cba",
+ "0009""08696e7465726e6574", /* "(8)internet" */
+ "0004""c0a82a17", /* same as default sgsn_sender */
+ "0004""c0a82a17"
+ );
+ const char *gtp_req_to_ggsn =
+ MSG_PDP_CTX_REQ("0068",
+ "6d33", /* mapped seq ("1234") */
+ "23",
+ "42000121436587f9",
+ "00000002", /* mapped TEI Data I ("123") */
+ "00000002", /* mapped TEI Control ("321") */
+ "0009""08696e7465726e6574",
+ "0004""7f000201", /* replaced with gtphub's ggsn ctrl */
+ "0004""7f000202" /* replaced with gtphub's ggsn user */
+ );
+
+ OSMO_ASSERT(msg_from_sgsn_c(&sgsn_sender,
+ &resolved_ggsn_addr,
+ gtp_req_from_sgsn,
+ gtp_req_to_ggsn));
+ OSMO_ASSERT(was_resolved_for("240010123456789", "internet"));
+
+ OSMO_ASSERT(tunnels_are(
+ "TEI=2:"
+ " 192.168.42.23 (TEI C=cba U=abc)"
+ " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)"
+ " @21955\n"
+ "TEI=1:"
+ " (uninitialized) (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21945\n"
+ ));
+
+ const char *gtp_resp_from_ggsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000002", /* destination TEI (sent in req above) */
+ "6d33", /* mapped seq */
+ "01", /* restart */
+ "00000def", /* TEI U */
+ "00000fde", /* TEI C */
+ "0004""c0a82b22", /* GSN addresses */
+ "0004""c0a82b22" /* (== resolved_ggsn_addr) */
+ );
+ const char *gtp_resp_to_sgsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000cba", /* unmapped TEI ("005") */
+ "1234", /* unmapped seq ("6d32") */
+ "23",
+ "00000002", /* mapped TEI from GGSN ("567") */
+ "00000002", /* mapped TEI from GGSN ("765") */
+ "0004""7f000101", /* gtphub's address towards SGSNs (Ctrl) */
+ "0004""7f000102" /* gtphub's address towards SGSNs (User) */
+ );
+ /* The response should go back to whichever port the request came from
+ * (unmapped by sequence nr) */
+ OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr,
+ &sgsn_sender,
+ gtp_resp_from_ggsn,
+ gtp_resp_to_sgsn));
+
+ OSMO_ASSERT(clear_test_hub());
+}
+
+static void test_peer_restarted_reusing_tei(void)
+{
+ LOG("test_peer_restarted_reusing_tei");
+
+ OSMO_ASSERT(setup_test_hub());
+
+ OSMO_ASSERT(create_pdp_ctx());
+
+ now += 10;
+
+ const char *gtp_req_from_sgsn =
+ MSG_PDP_CTX_REQ("0068",
+ "1234", /* brand new seq */
+ "61", /* DIFFERING restart counter */
+ "42000121436587f9",
+ "00000123", /* SAME TEI */
+ "00000321",
+ "0009""08696e7465726e6574", /* "(8)internet" */
+ "0004""c0a82a17", /* same as default sgsn_sender */
+ "0004""c0a82a17"
+ );
+ const char *gtp_req_to_ggsn =
+ MSG_PDP_CTX_REQ("0068",
+ "6d33", /* seq 6d31 + 2, after "out-of-band" Delete PDP Ctx
+ due to differing restart counter. */
+ "23",
+ "42000121436587f9",
+ "00000002", /* mapped TEI Data I ("123") */
+ "00000002", /* mapped TEI Control ("321") */
+ "0009""08696e7465726e6574",
+ "0004""7f000201", /* replaced with gtphub's ggsn ctrl */
+ "0004""7f000202" /* replaced with gtphub's ggsn user */
+ );
+
+ OSMO_ASSERT(msg_from_sgsn_c(&sgsn_sender,
+ &resolved_ggsn_addr,
+ gtp_req_from_sgsn,
+ gtp_req_to_ggsn));
+ OSMO_ASSERT(was_resolved_for("240010123456789", "internet"));
+
+ OSMO_ASSERT(tunnels_are(
+ "TEI=2:" /* being established after restart */
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)"
+ " @21955\n"
+ "TEI=1:" /* invalidated due to restart */
+ " (uninitialized) (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21945\n"
+ ));
+
+ /* An "out-of-band" delete request should have been sent to the GGSN
+ * (checked by expected log output in gtphub_test.ok), and the GGSN
+ * will (usually) send a Delete Response like this: */
+ const char *gtp_del_resp_from_ggsn =
+ MSG_DEL_PDP_CTX_RSP("00000001", "6d32");
+
+ /* For this response (due to peer restart) we expect no forwarded
+ * message. */
+ OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr,
+ &sgsn_sender,
+ gtp_del_resp_from_ggsn,
+ ""));
+
+ OSMO_ASSERT(tunnels_are(
+ "TEI=2:" /* still being established after restart */
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)"
+ " @21955\n"
+ ));
+
+ const char *gtp_resp_from_ggsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000002", /* destination TEI (sent in req above) */
+ "6d33", /* mapped seq */
+ "01", /* restart */
+ "00000def", /* TEI U */
+ "00000fde", /* TEI C */
+ "0004""c0a82b22", /* GSN addresses */
+ "0004""c0a82b22" /* (== resolved_ggsn_addr) */
+ );
+ const char *gtp_resp_to_sgsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000321", /* unmapped TEI ("005") */
+ "1234", /* unmapped seq ("6d33") */
+ "23",
+ "00000002", /* mapped TEI from GGSN ("567") */
+ "00000002", /* mapped TEI from GGSN ("765") */
+ "0004""7f000101", /* gtphub's address towards SGSNs (Ctrl) */
+ "0004""7f000102" /* gtphub's address towards SGSNs (User) */
+ );
+ /* The response should go back to whichever port the request came from
+ * (unmapped by sequence nr) */
+ OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr,
+ &sgsn_sender,
+ gtp_resp_from_ggsn,
+ gtp_resp_to_sgsn));
+
+ OSMO_ASSERT(tunnels_are(
+ "TEI=2:" /* still being established after restart */
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=fde U=def)"
+ " @21955\n"
+ ));
+
+ OSMO_ASSERT(clear_test_hub());
+}
+
+static void test_sgsn_behind_nat(void)
+{
+ LOG("test_user_data");
+
+ OSMO_ASSERT(setup_test_hub());
+ hub->sgsn_use_sender = 1; /* <-- Main difference to test_user_data() */
+ resolve_to_sgsn("192.168.42.23", 423); /* Same as sender */
+
+ OSMO_ASSERT(create_pdp_ctx());
+
+ /* now == 345; now + (6 * 60 * 60) == 21600 + 345 == 21945. */
+ OSMO_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21945\n"));
+
+ LOG("- user data starts");
+ /* Now expect default port numbers for User plane -- except SGSN. */
+ resolve_to_ggsn("192.168.43.34", 2152);
+
+ /* 10 minutes later */
+ now += 600;
+
+ const char *u_from_ggsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "ff" /* type 255: G-PDU */
+ "0058" /* length: 88 + 8 octets == 96 */
+ "00000001" /* mapped User TEI for SGSN from create_pdp_ctx() */
+ "0070" /* seq */
+ "0000" /* No extensions */
+ /* User data (ICMP packet), 96 - 12 = 84 octets */
+ "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8"
+ "4156000000007241010000000000101112131415161718191a1b1c1d1e1f"
+ "202122232425262728292a2b2c2d2e2f3031323334353637"
+ ;
+ const char *u_to_sgsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "ff" /* type 255: G-PDU */
+ "0058" /* length: 88 + 8 octets == 96 */
+ "00000123" /* unmapped User TEI */
+ "6d31" /* new mapped seq */
+ "0000"
+ "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8"
+ "4156000000007241010000000000101112131415161718191a1b1c1d1e1f"
+ "202122232425262728292a2b2c2d2e2f3031323334353637"
+ ;
+
+ /* This depends on create_pdp_ctx() sending resolved_sgsn_addr as GSN
+ * Address IEs in the GGSN's Create PDP Ctx Response. */
+ OSMO_ASSERT(msg_from_ggsn_u(&ggsn_sender,
+ &resolved_sgsn_addr,
+ u_from_ggsn,
+ u_to_sgsn));
+
+ /* Make sure the user plane messages have refreshed the TEI mapping
+ * timeouts: 21945 + 600 == 22545. */
+ OSMO_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @22545\n"));
+
+ const char *u_from_sgsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "ff" /* type 255: G-PDU */
+ "0058" /* length: 88 + 8 octets == 96 */
+ "00000001" /* mapped User TEI for GGSN from create_pdp_ctx() */
+ "1234" /* unknown seq */
+ "0000" /* No extensions */
+ /* User data (ICMP packet), 96 - 12 = 84 octets */
+ "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8"
+ "4156000000007241010000000000101112131415161718191a1b1c1d1e1f"
+ "202122232425262728292a2b2c2d2e2f3031323334353637"
+ ;
+ const char *u_to_ggsn =
+ "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */
+ "ff" /* type 255: G-PDU */
+ "0058" /* length: 88 + 8 octets == 96 */
+ "00000567" /* unmapped User TEI */
+ "6d31" /* unmapped seq */
+ "0000"
+ "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8"
+ "4156000000007241010000000000101112131415161718191a1b1c1d1e1f"
+ "202122232425262728292a2b2c2d2e2f3031323334353637"
+ ;
+
+ OSMO_ASSERT(msg_from_sgsn_u(&sgsn_sender,
+ &resolved_ggsn_addr,
+ u_from_sgsn,
+ u_to_ggsn));
+
+ /* Make sure the user plane messages have refreshed the TEI mapping
+ * timeouts: 21945 + 600 == 22545. Both timeouts refreshed: */
+ OSMO_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @22545\n"));
+
+ OSMO_ASSERT(clear_test_hub());
+}
+
+void test_parallel_context_creation(void)
+{
+ LOG("test_parallel_context_creation");
+
+ OSMO_ASSERT(setup_test_hub());
+
+ const char *gtp_req_from_sgsn1 =
+ MSG_PDP_CTX_REQ("0068",
+ "abcd",
+ "60",
+ "42000121436587f9",
+ "00000123",
+ "00000321",
+ "0009""08696e7465726e6574", /* "(8)internet" */
+ "0004""c0a82a17", /* same as default sgsn_sender */
+ "0004""c0a82a17"
+ );
+ const char *gtp_req_to_ggsn1 =
+ MSG_PDP_CTX_REQ("0068",
+ "6d31", /* mapped seq ("abcd") */
+ "23",
+ "42000121436587f9",
+ "00000001", /* mapped TEI Data I ("123") */
+ "00000001", /* mapped TEI Control ("321") */
+ "0009""08696e7465726e6574",
+ "0004""7f000201", /* replaced with gtphub's ggsn ctrl */
+ "0004""7f000202" /* replaced with gtphub's ggsn user */
+ );
+
+ OSMO_ASSERT(msg_from_sgsn_c(&sgsn_sender,
+ &resolved_ggsn_addr,
+ gtp_req_from_sgsn1,
+ gtp_req_to_ggsn1));
+
+ OSMO_ASSERT(tunnels_are(
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)"
+ " @21945\n"));
+
+ now ++;
+
+ const char *gtp_req_from_sgsn2 =
+ MSG_PDP_CTX_REQ("0068",
+ "abce",
+ "60",
+ "42000121436588f9",
+ "00000124",
+ "00000322",
+ "0009""08696e7465726e6574", /* "(8)internet" */
+ "0004""c0a82a17", /* same as default sgsn_sender */
+ "0004""c0a82a17"
+ );
+ const char *gtp_req_to_ggsn2 =
+ MSG_PDP_CTX_REQ("0068",
+ "6d32", /* mapped seq ("abce") */
+ "23",
+ "42000121436588f9",
+ "00000002", /* mapped TEI Data I ("124") */
+ "00000002", /* mapped TEI Control ("322") */
+ "0009""08696e7465726e6574",
+ "0004""7f000201", /* replaced with gtphub's ggsn ctrl */
+ "0004""7f000202" /* replaced with gtphub's ggsn user */
+ );
+
+ OSMO_ASSERT(msg_from_sgsn_c(&sgsn_sender,
+ &resolved_ggsn_addr,
+ gtp_req_from_sgsn2,
+ gtp_req_to_ggsn2));
+
+ OSMO_ASSERT(tunnels_are(
+ "TEI=2:"
+ " 192.168.42.23 (TEI C=322 U=124)"
+ " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)"
+ " @21946\n"
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)"
+ " @21945\n"
+ ));
+
+ now ++;
+
+ const char *gtp_resp_from_ggsn1 =
+ MSG_PDP_CTX_RSP("004e",
+ "00000001", /* destination TEI (sent in req above) */
+ "6d31", /* mapped seq */
+ "01", /* restart */
+ "00000567", /* TEI U */
+ "00000765", /* TEI C */
+ "0004""c0a82b22", /* GSN addresses */
+ "0004""c0a82b22" /* (== resolved_ggsn_addr) */
+ );
+ const char *gtp_resp_to_sgsn1 =
+ MSG_PDP_CTX_RSP("004e",
+ "00000321", /* unmapped TEI ("001") */
+ "abcd", /* unmapped seq ("6d31") */
+ "23",
+ "00000001", /* mapped TEI from GGSN ("567") */
+ "00000001", /* mapped TEI from GGSN ("765") */
+ "0004""7f000101", /* gtphub's address towards SGSNs (Ctrl) */
+ "0004""7f000102" /* gtphub's address towards SGSNs (User) */
+ );
+
+ OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr,
+ &sgsn_sender,
+ gtp_resp_from_ggsn1,
+ gtp_resp_to_sgsn1));
+
+ OSMO_ASSERT(tunnels_are(
+ "TEI=2:"
+ " 192.168.42.23 (TEI C=322 U=124)"
+ " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)"
+ " @21946\n"
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21947\n"
+ ));
+
+ now ++;
+
+ const char *gtp_resp_from_ggsn2 =
+ MSG_PDP_CTX_RSP("004e",
+ "00000002", /* destination TEI (sent in req above) */
+ "6d32", /* mapped seq */
+ "01", /* restart */
+ "00000568", /* TEI U */
+ "00000766", /* TEI C */
+ "0004""c0a82b22", /* GSN addresses */
+ "0004""c0a82b22" /* (== resolved_ggsn_addr) */
+ );
+ const char *gtp_resp_to_sgsn2 =
+ MSG_PDP_CTX_RSP("004e",
+ "00000322", /* unmapped TEI ("001") */
+ "abce", /* unmapped seq ("6d31") */
+ "23",
+ "00000002", /* mapped TEI from GGSN ("567") */
+ "00000002", /* mapped TEI from GGSN ("765") */
+ "0004""7f000101", /* gtphub's address towards SGSNs (Ctrl) */
+ "0004""7f000102" /* gtphub's address towards SGSNs (User) */
+ );
+
+ OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr,
+ &sgsn_sender,
+ gtp_resp_from_ggsn2,
+ gtp_resp_to_sgsn2));
+
+ OSMO_ASSERT(tunnels_are(
+ "TEI=2:"
+ " 192.168.42.23 (TEI C=322 U=124)"
+ " <-> 192.168.43.34 (TEI C=766 U=568)"
+ " @21948\n"
+ "TEI=1:"
+ " 192.168.42.23 (TEI C=321 U=123)"
+ " <-> 192.168.43.34 (TEI C=765 U=567)"
+ " @21947\n"
+ ));
+
+ OSMO_ASSERT(clear_test_hub());
+}
+
+
+static struct log_info_cat gtphub_categories[] = {
+ [DGTPHUB] = {
+ .name = "DGTPHUB",
+ .description = "GTP Hub",
+ .color = "\033[1;33m",
+ .enabled = 1, .loglevel = LOGL_DEBUG,
+ },
+};
+
+static struct log_info info = {
+ .cat = gtphub_categories,
+ .num_cat = ARRAY_SIZE(gtphub_categories),
+};
+
+int main(int argc, char **argv)
+{
+ osmo_init_logging(&info);
+ osmo_gtphub_ctx = talloc_named_const(NULL, 0, "osmo_gtphub");
+
+ test_nr_map_basic();
+ test_nr_map_wrap();
+ test_expiry();
+ test_echo();
+ test_one_pdp_ctx(GTPH_SIDE_SGSN);
+ test_one_pdp_ctx(GTPH_SIDE_GGSN);
+ test_user_data();
+ test_reused_tei();
+ test_peer_restarted();
+ test_peer_restarted_reusing_tei();
+ test_sgsn_behind_nat();
+ test_parallel_context_creation();
+ printf("Done\n");
+
+ talloc_report_full(osmo_gtphub_ctx, stderr);
+ OSMO_ASSERT(talloc_total_blocks(osmo_gtphub_ctx) == 1);
+ return 0;
+}
+