1 files changed, 124 insertions, 0 deletions
diff --git a/tests/sccp/ni_test.c b/tests/sccp/ni_test.c
new file mode 100644
index 0000000..860c5a0
--- /dev/null
+++ b/tests/sccp/ni_test.c
@@ -0,0 +1,124 @@
+#include <osmocom/core/logging.h>
+#include <osmocom/core/application.h>
+
+#include <osmocom/sigtran/osmo_ss7.h>
+#include <osmocom/sigtran/sccp_sap.h>
+#include <osmocom/sigtran/xua_msg.h>
+#include <osmocom/sigtran/protocol/m3ua.h>
+#include <osmocom/sigtran/sccp_helpers.h>
+
+#include "xua_internal.h"
+
+void *ctx = NULL;
+
+static int sccp_sap_up(struct osmo_prim_hdr *oph, void *_scu)
+{
+	struct osmo_scu_prim *scu_prim = (struct osmo_scu_prim *)oph;
+	int rc = 0;
+
+	printf("%s\n", msgb_hexdump(oph->msg));
+
+	switch (OSMO_PRIM_HDR(&scu_prim->oph)) {
+	case OSMO_PRIM(OSMO_SCU_PRIM_N_CONNECT, PRIM_OP_INDICATION):
+		printf("inbound connection indication\n");
+		break;
+
+	case OSMO_PRIM(OSMO_SCU_PRIM_N_DATA, PRIM_OP_INDICATION):
+		printf("incoming connection oriented data\n");
+		break;
+
+	case OSMO_PRIM(OSMO_SCU_PRIM_N_UNITDATA, PRIM_OP_INDICATION):
+		printf("Handle inbound UNITDATA\n");
+		break;
+
+	default:
+		printf("Unhandled SIGTRAN primitive: %u:%u\n", oph->primitive, oph->operation);
+		break;
+	}
+
+	return rc;
+}
+
+static struct msgb *create_msg(void)
+{
+	struct msgb *msg = msgb_alloc_headroom(128, 128, "test msg");
+	OSMO_ASSERT(msg);
+
+	msgb_printf(msg, "test msg");
+	msg->l3h = msg->data;
+
+	return msg;
+}
+
+static const struct log_info_cat default_categories[] = {
+	[0] = {
+		.name = "DSCCP",
+		.description = "DSCP",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+};
+
+const struct log_info log_info = {
+	.cat = default_categories,
+	.num_cat = ARRAY_SIZE(default_categories),
+};
+
+struct osmo_ss7_asp *asp;
+struct osmo_sccp_addr addr1;
+struct osmo_ss7_instance *ss7;
+
+/* override, requires '-Wl,--wrap=m3ua_tx_xua_as' */
+int __real_m3ua_tx_xua_as(struct osmo_ss7_as *as, struct xua_msg *xua);
+int __wrap_m3ua_tx_xua_as(struct osmo_ss7_as *as, struct xua_msg *xua)
+{
+	printf("sio = 0x%02x ==> ni = %u\n", xua->mtp.sio, xua->mtp.sio >> 6);
+	/* loopback to self */
+	xua->mtp.dpc = ss7->cfg.primary_pc;
+	return m3ua_hmdc_rx_from_l2(ss7, xua);
+}
+
+int main(void)
+{
+	struct osmo_ss7_as *as;
+	struct osmo_sccp_user *user1;
+	struct osmo_sccp_addr addr2;
+	osmo_sccp_make_addr_pc_ssn(&addr1, 1, 1);
+	osmo_sccp_make_addr_pc_ssn(&addr2, 2, 1);
+
+	int ss7_id = 0;
+
+	osmo_init_logging(&log_info);
+	osmo_ss7_init();
+
+	ss7 = osmo_ss7_instance_find_or_create(ctx, ss7_id);
+	OSMO_ASSERT(ss7);
+
+	as = osmo_ss7_as_find_or_create(ss7, "as", OSMO_SS7_ASP_PROT_M3UA);
+	OSMO_ASSERT(as);
+
+	asp = osmo_ss7_asp_find_or_create(ss7, "asp", 0, 0, OSMO_SS7_ASP_PROT_M3UA);
+	OSMO_ASSERT(asp);
+	osmo_ss7_as_add_asp(as, asp->cfg.name);
+
+	osmo_ss7_route_create(ss7->rtable_system, 0, 0, as->cfg.name);
+	ss7->cfg.primary_pc = addr1.pc;
+
+	asp->cfg.is_server = false;
+
+	ss7->sccp = osmo_sccp_instance_create(ss7, NULL);
+	OSMO_ASSERT(ss7->sccp);
+
+	ss7->cfg.network_indicator = 2;
+
+	user1 = osmo_sccp_user_bind(ss7->sccp, "user1", sccp_sap_up, 1);
+	osmo_sccp_user_bind(ss7->sccp, "user2", sccp_sap_up, 2);
+
+	osmo_sccp_tx_unitdata_msg(user1, &addr1, &addr2, create_msg());
+
+	osmo_ss7_asp_destroy(asp);
+	osmo_ss7_as_destroy(as);
+	osmo_ss7_instance_destroy(ss7);
+
+	return 0;
+}
+