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NMT / SMS: Short Message Service support

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This commit is contained in:
Andreas Eversberg
2016-07-04 19:52:00 +02:00
parent 64c829909b
commit e7fa08b6df
11 changed files with 1017 additions and 10 deletions
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68
src/nmt/main.c
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@@ -24,6 +24,10 @@
#include <string.h>
#include <signal.h>
#include <sched.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "../common/main.h"
#include "../common/debug.h"
#include "../common/timer.h"
@@ -36,6 +40,9 @@
#include "tones.h"
#include "announcement.h"
#define SMS_FIFO "/tmp/nmt_sms_deliver"
static int sms_fd = -1;
/* settings */
int num_chan_type = 0;
enum nmt_chan_type chan_type[MAX_SENDER] = { CHAN_TYPE_CC_TC };
@@ -44,6 +51,7 @@ char traffic_area[3] = "";
char area_no = 0;
int compandor = 1;
int supervisory = 0;
const char *smsc_number = "767";
void print_help(const char *arg0)
{
@@ -69,6 +77,9 @@ void print_help(const char *arg0)
printf(" -0 --supervisory 1..4 | 0\n");
printf(" Use supervisory signal 1..4 to detect loss of signal from mobile\n");
printf(" station, use 0 to disable. (default = '%d')\n", supervisory);
printf(" -S --smsc-number <digits>\n");
printf(" If this number is dialed, the mobile is connected to the SMSC (Short\n");
printf(" Message Service Center). (default = '%s')\n", smsc_number);
printf("\nstation-id: Give 7 digits of station-id, you don't need to enter it\n");
printf(" for every start of this program.\n");
}
@@ -85,10 +96,11 @@ static int handle_options(int argc, char **argv)
{"traffic-area", 1, 0, 'y'},
{"compandor", 1, 0, 'C'},
{"supervisory", 1, 0, '0'},
{"smsc-number", 1, 0, 'S'},
{0, 0, 0, 0}
};
set_options_common("t:P:a:y:C:0:", long_options_special);
set_options_common("t:P:a:y:C:0:S:", long_options_special);
while (1) {
int option_index = 0, c, rc;
@@ -176,6 +188,10 @@ error_ta:
}
skip_args += 2;
break;
case 'S':
smsc_number = strdup(optarg);
skip_args += 2;
break;
default:
opt_switch_common(c, argv[0], &skip_args);
}
@@ -186,6 +202,33 @@ error_ta:
return skip_args;
}
static void myhandler(void)
{
static char buffer[256];
static int pos = 0, rc, i;
int space = sizeof(buffer) - pos;
rc = read(sms_fd, buffer + pos, space);
if (rc > 0) {
pos += rc;
if (pos == space) {
fprintf(stderr, "SMS buffer overflow!\n");
pos = 0;
}
/* check for end of line */
for (i = 0; i < pos; i++) {
if (buffer[i] == '\r' || buffer[i] == '\n')
break;
}
/* send sms */
if (i < pos) {
buffer[i] = '\0';
pos = 0;
deliver_sms(buffer);
}
}
}
int main(int argc, char *argv[])
{
int rc;
@@ -237,6 +280,20 @@ int main(int argc, char *argv[])
return 0;
}
/* create pipe for SMS delivery */
unlink(SMS_FIFO);
rc = mkfifo(SMS_FIFO, 0666);
if (rc < 0) {
fprintf(stderr, "Failed to create SMS deliver FIFO!\n");
goto fail;
} else {
sms_fd = open(SMS_FIFO, O_RDONLY | O_NONBLOCK);
if (sms_fd < 0) {
fprintf(stderr, "Failed to open SMS deliver FIFO!\n");
goto fail;
}
}
if (!loopback)
print_image();
@@ -258,7 +315,7 @@ int main(int argc, char *argv[])
/* create transceiver instance */
for (i = 0; i < num_kanal; i++) {
rc = nmt_create(kanal[i], (loopback) ? CHAN_TYPE_TEST : chan_type[i], sounddev[i], samplerate, cross_channels, rx_gain, do_pre_emphasis, do_de_emphasis, write_wave, read_wave, ms_power, nmt_digits2value(traffic_area, 2), area_no, compandor, supervisory, loopback);
rc = nmt_create(kanal[i], (loopback) ? CHAN_TYPE_TEST : chan_type[i], sounddev[i], samplerate, cross_channels, rx_gain, do_pre_emphasis, do_de_emphasis, write_wave, read_wave, ms_power, nmt_digits2value(traffic_area, 2), area_no, compandor, supervisory, smsc_number, loopback);
if (rc < 0) {
fprintf(stderr, "Failed to create transceiver instance. Quitting!\n");
goto fail;
@@ -286,7 +343,7 @@ int main(int argc, char *argv[])
fprintf(stderr, "Error setting SCHED_RR with prio %d\n", rt_prio);
}
main_loop(&quit, latency, interval, NULL);
main_loop(&quit, latency, interval, myhandler);
if (rt_prio > 0) {
struct sched_param schedp;
@@ -297,6 +354,11 @@ int main(int argc, char *argv[])
}
fail:
/* fifo */
if (sms_fd > 0)
close(sms_fd);
unlink(SMS_FIFO);
/* cleanup functions */
call_cleanup();
if (use_mncc_sock)