static int ki_isup_to_json(sip_msg_t *_m, int proto)
{
struct isup_state isup_state = { 0, };
const uint8_t *data;
int opc, dpc, mtp_type, int_len, rc;
size_t len;
free((char *) isup_last);
srjson_DeleteDoc(isup_json);
isup_last = NULL;
isup_json = NULL;
mtp_type = 0;
data = fetch_payload(_m, "$var(payload)", &int_len);
if (!data)
return -1;
if (int_len < 0) {
LM_ERR("Payload length low %d\n", int_len);
return -1;
}
len = int_len;
data = ss7_extract_payload(data, &len, proto, &opc, &dpc, &mtp_type);
if (!data)
return -1;
if (mtp_type != MTP_ISUP) {
LM_DBG("Non ISUP payload %d\n", mtp_type);
return -1;
}
/* parse isup... */
isup_state.json = srjson_NewDoc(NULL);
if (!isup_state.json) {
LM_ERR("Failed to allocate JSON document\n");
return -1;
}
isup_state.json->root = srjson_CreateObject(isup_state.json);
if (!isup_state.json->root) {
LM_ERR("Failed to allocate JSON object\n");
srjson_DeleteDoc(isup_state.json);
return -1;
}
rc = isup_parse(data, len, &isup_state);
if (rc != 0) {
srjson_DeleteDoc(isup_state.json);
return rc;
}
srjson_AddNumberToObject(isup_state.json, isup_state.json->root, "opc", opc);
srjson_AddNumberToObject(isup_state.json, isup_state.json->root, "dpc", dpc);
isup_last = srjson_PrintUnformatted(isup_state.json, isup_state.json->root);
isup_json = isup_state.json;
return 1;
}
static int ss7_parse_isup(msg_t *msg, char *param1, char *param2)
{
uint8_t *data;
size_t len;
int opc, dpc, type;
data = ss7_extract_payload(msg, &len, &opc, &dpc, &type);
if (!data)
return -1;
if (type != MTP_ISUP) {
LDEBUG("ISUP service indicator not ISUP but %d", type);
return -1;
}
/* data[0:1] is now the CIC and data[2] the type */
return 1;
}