static int process_packet(void *user_data, const uint8_t *pkt, int len)
{
static udptl_state_t *state = NULL;
if (state == NULL)
state = udptl_init(NULL, UDPTL_ERROR_CORRECTION_REDUNDANCY, 3, 3, ifp_handler, NULL);
udptl_rx_packet(state, pkt, len);
return 0;
}
static int fax_initGW(fax_params_t *f_params)
{
t38_gateway_state_t *t38_gw;
t38_core_state_t *t38_core;
logging_state_t *logging;
session_t *session;
int log_level;
int ret_val = 0;
int fec_entries = DEFAULT_FEC_ENTRIES;
int fec_span = DEFAULT_FEC_SPAN;
int supported_modems;
if(!f_params)
{
ret_val = -1; goto _exit;
}
session = f_params->session;
app_trace(TRACE_INFO, "Fax %04x. Init T.38-fax gateway", session->ses_id);
memset(f_params->pvt.t38_gw_state, 0, sizeof(t38_gateway_state_t));
if(t38_gateway_init(f_params->pvt.t38_gw_state, t38_tx_packet_handler,
f_params) == NULL)
{
app_trace(TRACE_ERR, "Fax %04x. Cannot initialize T.38 structs",
session->ses_id);
ret_val = -2; goto _exit;
}
t38_gw = f_params->pvt.t38_gw_state;
t38_core = f_params->pvt.t38_core = t38_gateway_get_t38_core_state(t38_gw);
t38_gateway_set_transmit_on_idle(t38_gw, TRANSMIT_ON_IDLE);
t38_gateway_set_tep_mode(t38_gw, TEP_MODE);
if(udptl_init(f_params->pvt.udptl_state, UDPTL_ERROR_CORRECTION_REDUNDANCY,
fec_span, fec_entries,
(udptl_rx_packet_handler_t *) t38_core_rx_ifp_packet,
(void *) f_params->pvt.t38_core) == NULL)
{
app_trace(TRACE_ERR, "Fax %04x. Cannot initialize UDPTL structs",
session->ses_id);
ret_val = -3; goto _exit;
}
if(f_params->pvt.verbose)
{
log_level = SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG |
SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL |
SPAN_LOG_FLOW;
logging = t38_gateway_get_logging_state(t38_gw);
span_log_set_message_handler(logging, fax_spandspLog);
span_log_set_level(logging, log_level);
span_log_set_tag(logging, f_params->log_tag);
logging = t38_core_get_logging_state(t38_core);
span_log_set_message_handler(logging, fax_spandspLog);
span_log_set_level(logging, log_level);
span_log_set_tag(logging, f_params->log_tag);
}
supported_modems = T30_SUPPORT_V29 | T30_SUPPORT_V27TER;
if(!f_params->pvt.disable_v17) supported_modems |= T30_SUPPORT_V17;
t38_gateway_set_supported_modems(t38_gw, supported_modems);
t38_gateway_set_ecm_capability(t38_gw, f_params->pvt.use_ecm);
_exit:
return ret_val;
}
/*
* Init appropriate spandsp objects to receive fax
*/
static int spanfax_init(fax_session_t *f_session, fax_transport_mod_e trans_mode)
{
t38_terminal_state_t *t38;
t38_core_state_t *t38_core;
t30_state_t *t30;
logging_state_t *logging;
int log_level;
int fec_entries = DEFAULT_FEC_ENTRIES;
int fec_span = DEFAULT_FEC_SPAN;
printf("fax: %s: start!\n", __func__);
switch(trans_mode) {
case FAX_TRANSPORT_T38_MOD:
memset(f_session->pvt.t38_state, 0, sizeof(t38_terminal_state_t));
if (t38_terminal_init(f_session->pvt.t38_state, f_session->pvt.caller,
t38_tx_packet_handler, f_session) == NULL) {
printf("fax: Cannot initialize T.38 structs\n");
return 0;
}
t38 = f_session->pvt.t38_state;
t30 = t38_terminal_get_t30_state(t38);
t38_core = f_session->pvt.t38_core = t38_terminal_get_t38_core_state(t38);
t38_terminal_set_config(t38, 0);
t38_terminal_set_tep_mode(t38, 0);
if (udptl_init(f_session->pvt.udptl_state, UDPTL_ERROR_CORRECTION_REDUNDANCY,
fec_span, fec_entries, (udptl_rx_packet_handler_t *) t38_core_rx_ifp_packet,
(void *) f_session->pvt.t38_core) == NULL) {
printf("fax: Cannot initialize UDPTL structs\n");
return 0;
}
if (f_session->pvt.verbose) {
log_level = SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG |
SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL |
SPAN_LOG_FLOW;
logging = t38_terminal_get_logging_state(t38);
span_log_set_message_handler(logging, spanfax_log_message);
span_log_set_level(logging, log_level);
span_log_set_tag(logging, f_session->log_tag);
logging = t38_core_get_logging_state(t38_core);
span_log_set_message_handler(logging, spanfax_log_message);
span_log_set_level(logging, log_level);
span_log_set_tag(logging, f_session->log_tag);
logging = t30_get_logging_state(t30);
span_log_set_message_handler(logging, spanfax_log_message);
span_log_set_level(logging, log_level);
span_log_set_tag(logging, f_session->log_tag);
}
break;
case FAX_TRANSPORT_AUDIO_MOD:
default:
return 0;
break;
}
/* All the things which are common to audio and T.38 FAX setup */
t30_set_tx_ident(t30, f_session->pvt.ident);
t30_set_tx_page_header_info(t30, f_session->pvt.header);
t30_set_phase_e_handler(t30, phase_e_handler, f_session);
t30_set_phase_d_handler(t30, phase_d_handler, f_session);
t30_set_phase_b_handler(t30, phase_b_handler, f_session);
t30_set_supported_image_sizes(t30, T30_SUPPORT_US_LETTER_LENGTH
| T30_SUPPORT_US_LEGAL_LENGTH
| T30_SUPPORT_UNLIMITED_LENGTH
| T30_SUPPORT_215MM_WIDTH
| T30_SUPPORT_255MM_WIDTH
| T30_SUPPORT_303MM_WIDTH
);
t30_set_supported_resolutions(t30, T30_SUPPORT_STANDARD_RESOLUTION
| T30_SUPPORT_FINE_RESOLUTION
| T30_SUPPORT_SUPERFINE_RESOLUTION
| T30_SUPPORT_R16_RESOLUTION
| T30_SUPPORT_R8_RESOLUTION
| T30_SUPPORT_300_300_RESOLUTION
| T30_SUPPORT_400_400_RESOLUTION
| T30_SUPPORT_600_600_RESOLUTION
| T30_SUPPORT_1200_1200_RESOLUTION
| T30_SUPPORT_300_600_RESOLUTION
| T30_SUPPORT_400_800_RESOLUTION
| T30_SUPPORT_600_1200_RESOLUTION
);
#if 0
t30_set_supported_colour_resolutions(t30, 0);
#endif
if (f_session->pvt.disable_v17) {
t30_set_supported_modems(t30, T30_SUPPORT_V29 | T30_SUPPORT_V27TER);
} else {
t30_set_supported_modems(t30, T30_SUPPORT_V29 | T30_SUPPORT_V27TER
| T30_SUPPORT_V17);
}
if (f_session->pvt.use_ecm) {
t30_set_ecm_capability(t30, TRUE);
t30_set_supported_compressions(t30,
T30_SUPPORT_T4_1D_COMPRESSION
| T30_SUPPORT_T4_2D_COMPRESSION
| T30_SUPPORT_T6_COMPRESSION
| T30_SUPPORT_T85_COMPRESSION
| T30_SUPPORT_T85_L0_COMPRESSION);
} else {
t30_set_supported_compressions(t30, T30_SUPPORT_T4_1D_COMPRESSION
| T30_SUPPORT_T4_2D_COMPRESSION);
}
if (f_session->pvt.caller) {
t30_set_tx_file(t30, f_session->pvt.filename, -1, -1);
} else {
t30_set_rx_file(t30, f_session->pvt.filename, -1);
}
return 0;
}