gsm0808: Test if we properly decode a SRVCC cell identifier list

We don't handle this correctly, as we decided to overload the
meaning of 0b1011 in a cell identifier list (defined by 3GPP
as used in SRVCC) with something osmocom proprietary.

Change-Id: I608220e8e5dd5a44f85c6bc5ea04622a2cad24ec
This commit is contained in:
Harald Welte 2022-02-15 20:06:16 +01:00 committed by Pau Espin Pedrol
parent c797e25f3e
commit a87526d53e
1 changed files with 13 additions and 0 deletions

View File

@ -1072,6 +1072,18 @@ static void test_gsm0808_enc_dec_encrypt_info()
msgb_free(msg);
}
static void test_gsm0808_dec_cell_id_list_srvcc()
{
/* taken from a pcap file of a real-world 3rd party MSC (SYS#5838) */
const uint8_t enc_cil[] = { 0x0b, 0x2, 0xf2, 0x10, 0x4e, 0x20, 0x15, 0xbe};
struct gsm0808_cell_id_list2 dec_cil;
int rc;
rc = gsm0808_dec_cell_id_list2(&dec_cil, enc_cil, sizeof(enc_cil));
/* Not yet supported: */
OSMO_ASSERT(rc == -EINVAL);
}
static void test_gsm0808_enc_dec_cell_id_list_lac()
{
struct gsm0808_cell_id_list2 enc_cil;
@ -2490,6 +2502,7 @@ int main(int argc, char **argv)
test_gsm0808_enc_dec_cell_id_list_multi_ci();
test_gsm0808_enc_dec_cell_id_list_multi_lac_and_ci();
test_gsm0808_enc_dec_cell_id_list_multi_global();
test_gsm0808_dec_cell_id_list_srvcc();
test_cell_id_list_add();