gprs-ns/test: Save the last PDU type sent
This records the PDU type of the last message sent to the remote peer
in the global variable sent_pdu_type, which can then be used in
assertions.
Note that sent_pdu_type will remain unchanged if no message has been
sent via sendto.
Sponsored-by: On-Waves ehf
diff --git a/tests/gb/gprs_ns_test.c b/tests/gb/gprs_ns_test.c
index 15e36ba..0b3a76c 100644
--- a/tests/gb/gprs_ns_test.c
+++ b/tests/gb/gprs_ns_test.c
@@ -32,6 +32,8 @@
#define SGSN_NSEI 0x0100
+static int sent_pdu_type = 0;
+
static int gprs_process_message(struct gprs_ns_inst *nsi, const char *text,
struct sockaddr_in *peer, const unsigned char* data,
size_t data_len);
@@ -265,6 +267,8 @@
if (!real_sendto)
real_sendto = dlsym(RTLD_NEXT, "sendto");
+ sent_pdu_type = len > 0 ? ((uint8_t *)buf)[0] : -1;
+
if (dest_host == REMOTE_BSS_ADDR)
printf("MESSAGE to BSS, msg length %d\n%s\n\n", len, osmo_hexdump(buf, len));
else if (dest_host == REMOTE_SGSN_ADDR)