/**
* Halt TLS threads and close socket
*/
void shutdown_tls()
{
if (!tls.auth_server_running)
return;
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_CRITICAL,
"tls send failure when sending request");
close_tls_session();
/* put auth_server_running to 0 because this is this thread which has
* just killed auth_server */
tls.auth_server_running = 0;
}
/**
* Thread waiting to authentication server (NuAuth) answer.
* Call auth_packet_to_decision() on new packet.
*/
int authsrv(void *data)
{
int ret;
int read_size;
char cdgram[512];
char *dgram = cdgram;
int offset = 0;
int i = 0;
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_VERBOSE_DEBUG,
"[+] In auth server thread");
if (tls.session) {
read_size = sizeof(nuv5_nuauth_decision_response_t);
/* read size of data */
do {
if (i>0) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_VERBOSE_DEBUG,
"Reading header (pass %d)", i);
}
ret = ufwissl_read(tls.session, dgram + offset, read_size - offset);
if (ret < 0) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_WARNING,
"Unable to read header");
if (!strcmp("Resource temporarily unavailable",
ufwissl_get_error(tls.session))) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_WARNING,
"Resource temporarily unavailable");
i++;
continue;
} else {
close_tls_session();
return NU_EXIT_ERROR;
}
} else if (ret == 0) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_WARNING,
"Disconnect during read");
close_tls_session();
return NU_EXIT_ERROR;
} else if (ret != (read_size - offset)) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_WARNING,
"Under read: %d for %d",
ret,
read_size);
offset += ret;
i++;
continue;
} else {
offset += ret;
break;
}
} while ((offset != read_size) && i < 3);
if (i == 3) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_WARNING,
"Unable to ufwissl_read %d from session", read_size);
return NU_EXIT_ERROR;
}
read_size = ntohs(((nuv5_nuauth_decision_response_t *) dgram)->payload_len);
if (read_size != 0) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_VERBOSE_DEBUG,
"going to ufwissl_read: %d", read_size);
if (read_size + offset > (int) sizeof(cdgram)) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_VERBOSE_DEBUG,
"too big to read ufwissl_read: %d", read_size);
close_tls_session();
return NU_EXIT_ERROR;
}
ret = ufwissl_read(tls.session, dgram + offset, read_size);
if (ret != read_size) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_WARNING,
"Unable to read data");
return NU_EXIT_ERROR;
}
}
} else
ret = 0;
if (ret == UFWISSL_SOCK_TIMEOUT) {
return NU_EXIT_ERROR;
}
if (ret <= 0) {
log_area_printf(DEBUG_AREA_GW, DEBUG_LEVEL_VERBOSE_DEBUG,
"Error during ufwissl_read: %s", ufwissl_get_error(tls.session));
close_tls_session();
return NU_EXIT_ERROR;
} else {
ret = read_size + offset;
do {
read_size = auth_packet_to_decision(dgram, ret);
ret -= read_size;
dgram = dgram + read_size;
} while (ret > 0 && (read_size != -1));
}
dgram = cdgram;
return NU_EXIT_OK;
}
