add BSSLAP coding for Location Services
BSSLAP: there are APDUs transferred in BSSMAP-LE Connection Oriented
Information messages on Lb between BSC and SMLC.
Add BSSLAP coding for these APDU messages:
- TA Layer3
- TA Request
- TA Response, possibly containing Location Estimate coded in GAD
- Reject
- Reset (for intra-BSS handover during TA Request)
- Abort (for inter-BSS handover)
Add encoding and decoding tests.
Change-Id: I6409c4bcac402dc7626a3afce9081c59cd715fe8
diff --git a/tests/bsslap/bsslap_test.c b/tests/bsslap/bsslap_test.c
new file mode 100644
index 0000000..43ea0d4
--- /dev/null
+++ b/tests/bsslap/bsslap_test.c
@@ -0,0 +1,103 @@
+#include <stdio.h>
+
+#include <osmocom/core/utils.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/gsm/bsslap.h>
+
+struct bsslap_pdu bsslap_test_pdus[] = {
+ {
+ .msg_type = BSSLAP_MSGT_TA_REQUEST,
+ },
+ {
+ .msg_type = BSSLAP_MSGT_TA_RESPONSE,
+ .ta_response = {
+ .cell_id = 23,
+ .ta = 42,
+ },
+ },
+ {
+ .msg_type = BSSLAP_MSGT_REJECT,
+ .reject = BSSLAP_CAUSE_OTHER_RADIO_EVT_FAIL,
+ },
+ {
+ .msg_type = BSSLAP_MSGT_RESET,
+ .reset = {
+ .cell_id = 23,
+ .ta = 42,
+ .chan_desc = {
+ .chan_nr = 23,
+ .h0 = {
+ .tsc = 5,
+ .h = 1,
+ .arfcn_high = 2,
+ .arfcn_low = 3,
+ },
+ },
+ .cause = BSSLAP_CAUSE_INTRA_BSS_HO,
+ },
+ },
+ {
+ .msg_type = BSSLAP_MSGT_ABORT,
+ .abort = BSSLAP_CAUSE_LOSS_SIG_CONN_MS,
+ },
+ {
+ .msg_type = BSSLAP_MSGT_TA_LAYER3,
+ .ta_layer3 = {
+ .ta = 23,
+ },
+ },
+};
+
+void test_bsslap_enc_dec()
+{
+ struct bsslap_pdu *pdu;
+ printf("--- %s\n", __func__);
+
+ for (pdu = bsslap_test_pdus; (pdu - bsslap_test_pdus) < ARRAY_SIZE(bsslap_test_pdus); pdu++) {
+ struct msgb *msg = msgb_alloc(1024, __func__);
+ struct bsslap_pdu dec_pdu;
+ struct osmo_bsslap_err *err;
+ int rc;
+ void *loop_ctx = msg;
+ rc = osmo_bsslap_enc(msg, pdu);
+ if (rc <= 0) {
+ printf("[%ld] %s: ERROR: failed to encode pdu\n", (pdu - bsslap_test_pdus),
+ osmo_bsslap_msgt_name(pdu->msg_type));
+ goto loop_end;
+ }
+ if (rc != msg->len) {
+ printf("[%ld] %s: ERROR: osmo_bsslap_enc() returned length %d but msgb has %d bytes\n",
+ (pdu - bsslap_test_pdus), osmo_bsslap_msgt_name(pdu->msg_type),
+ rc, msg->len);
+ goto loop_end;
+ }
+
+ memset(&dec_pdu, 0xff, sizeof(dec_pdu));
+ rc = osmo_bsslap_dec(&dec_pdu, &err, loop_ctx, msg->data, msg->len);
+ if (rc) {
+ printf("[%ld] %s: ERROR: failed to decode pdu: %s\n", (pdu - bsslap_test_pdus),
+ osmo_bsslap_msgt_name(pdu->msg_type), err->logmsg);
+ printf(" encoded data: %s\n", osmo_hexdump(msg->data, msg->len));
+ goto loop_end;
+ }
+
+ if (memcmp(pdu, &dec_pdu, sizeof(dec_pdu))) {
+ printf("[%ld] %s: ERROR: decoded PDU != encoded PDU\n", (pdu - bsslap_test_pdus),
+ osmo_bsslap_msgt_name(pdu->msg_type));
+ printf(" original struct: %s\n", osmo_hexdump((void*)pdu, sizeof(*pdu)));
+ printf(" decoded struct: %s\n", osmo_hexdump((void*)&dec_pdu, sizeof(dec_pdu)));
+ goto loop_end;
+ }
+
+ printf("[%ld] %s: ok\n", (pdu - bsslap_test_pdus), osmo_bsslap_msgt_name(pdu->msg_type));
+
+loop_end:
+ msgb_free(msg);
+ }
+}
+
+int main()
+{
+ test_bsslap_enc_dec();
+ return 0;
+}