/*
* transmit out through the lower layer interface
*
* infolen - length of the information part of the packet
*/
void ppp_transmit(GAtPPP *ppp, guint8 *packet, guint infolen)
{
struct ppp_header *header = (struct ppp_header *) packet;
guint16 proto = ppp_proto(packet);
guint8 code;
gboolean lcp = (proto == LCP_PROTOCOL);
guint32 xmit_accm = 0;
/*
* all LCP Link Configuration, Link Termination, and Code-Reject
* packets must be sent with the default sending ACCM
*/
if (lcp) {
code = pppcp_get_code(packet);
lcp = code > 0 && code < 8;
}
if (lcp) {
xmit_accm = g_at_hdlc_get_xmit_accm(ppp->hdlc);
g_at_hdlc_set_xmit_accm(ppp->hdlc, ~0U);
}
header->address = PPP_ADDR_FIELD;
header->control = PPP_CTRL;
if (g_at_hdlc_send(ppp->hdlc, packet,
infolen + sizeof(*header)) == FALSE)
g_print("Failed to send a frame\n");
if (lcp)
g_at_hdlc_set_xmit_accm(ppp->hdlc, xmit_accm);
}
void ppp_set_xmit_accm(GAtPPP *ppp, guint32 accm)
{
g_at_hdlc_set_xmit_accm(ppp->hdlc, accm);
}
int main(int argc, char **argv)
{
GOptionContext *context;
GError *err = NULL;
GIOChannel *channel;
GAtHDLC *hdlc;
context = g_option_context_new(NULL);
g_option_context_add_main_entries(context, options, NULL);
if (g_option_context_parse(context, &argc, &argv, &err) == FALSE) {
if (err != NULL) {
g_printerr("%s\n", err->message);
g_error_free(err);
return 1;
}
g_printerr("An unknown error occurred\n");
return 1;
}
g_option_context_free(context);
if (option_device == NULL)
option_device = g_strdup("/dev/ttyUSB1");
g_print("Device: %s\n", option_device);
channel = g_at_tty_open_qcdm(option_device);
if (channel == NULL) {
g_printerr("Failed to open QCDM device\n");
return 1;
}
event_loop = g_main_loop_new(NULL, FALSE);
hdlc = g_at_hdlc_new(channel);
g_io_channel_unref(channel);
if (hdlc == NULL)
return 1;
if (option_debug == TRUE)
g_at_hdlc_set_debug(hdlc, hdlc_debug, "HDLC");
g_at_hdlc_set_xmit_accm(hdlc, 0);
g_at_hdlc_set_recv_accm(hdlc, 0);
g_at_hdlc_set_receive(hdlc, hdlc_receive, NULL);
send_command(hdlc, 0x00); /* Version info */
send_command(hdlc, 0x51); /* Features query */
send_subsys_command(hdlc, 250, 7); /* Novatel modem status */
g_main_loop_run(event_loop);
g_at_hdlc_unref(hdlc);
g_main_loop_unref(event_loop);
g_free(option_device);
return 0;
}
