mISDNuser/example/testlayer1.c

359 lines
7.8 KiB
C

/*
Sample code to act as a userland dummy layer2
and communicate with Layer1
(use layermask=3 to ensure your stack just
consists of Layer0+Layer1)
*/
#include <stdio.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#include <sys/time.h>
#include "mISDNlib.h"
void usage(pname)
char *pname;
{
fprintf(stderr, "Call with %s [options]\n",pname);
fprintf(stderr, "\n");
fprintf(stderr, "\n Valid options are:\n");
fprintf(stderr, "\n");
fprintf(stderr, " -? Usage ; printout this information\n");
fprintf(stderr, " -c<n> use card number n (default 1)\n");
fprintf(stderr, " -vn Printing debug info level n\n");
fprintf(stderr, "\n");
}
typedef struct _devinfo {
int device;
int cardnr;
int func;
int d_stid;
int b_stid[2];
int layer1;
int layer2;
int unconfirmed;
} devinfo_t;
static int VerifyOn=1;
static devinfo_t mISDN;
void sig_handler(int sig)
{
int err;
fprintf(stdout, "exiting...\n");
err = mISDN_close(mISDN.device);
fprintf(stdout, "mISDN_close: error(%d): %s\n", err,
strerror(err));
exit(0);
}
void set_signals()
{
/* Set up the signal handler */
signal(SIGHUP, sig_handler);
signal(SIGINT, sig_handler);
signal(SIGTERM, sig_handler);
}
#define TICKS_PER_SEC 1000000
long get_tick_count(void)
{
struct timeval tp;
gettimeofday(&tp, 0);
return ((unsigned)tp.tv_sec)*TICKS_PER_SEC+((unsigned)tp.tv_usec);
}
/* create userland layer2 */
int
add_dlayer2(devinfo_t *di)
{
layer_info_t li;
int ret, lid;
memset(&li, 0, sizeof(layer_info_t));
strcpy(&li.name[0], "user L2");
li.object_id = -1;
li.extentions = 0;
li.pid.protocol[2] = ISDN_PID_L2_LAPD;
li.pid.layermask = ISDN_LAYER(2);
li.st = di->d_stid;
ret = mISDN_new_layer(di->device, &li);
if (ret<0)
return(12);
di->layer2 = li.id;
ret = mISDN_register_layer(di->device, di->d_stid, di->layer2);
if (ret) {
fprintf(stdout, "register_layer ret(%d)\n", ret);
return(14);
}
lid = mISDN_get_layerid(di->device, di->d_stid, 2);
if (lid<0) {
fprintf(stdout, "cannot get layer2 (%d)\n", lid);
return(15);
}
di->layer2 = lid;
if (!di->layer2)
return(13);
return(0);
}
int do_setup(devinfo_t *di)
{
unsigned char buf[2048];
iframe_t *frm = (iframe_t *)buf;
int i, ret = 0;
stack_info_t *stinf;
long t1;
ret = mISDN_get_stack_count(di->device);
if (VerifyOn>1)
fprintf(stdout, "%d stacks found\n", ret);
if (ret < di->cardnr) {
fprintf(stdout, "cannot config card nr %d only %d cards\n",
di->cardnr, ret);
return(2);
}
ret = mISDN_get_stack_info(di->device, di->cardnr, buf, 2048);
if (ret<=0) {
fprintf(stdout, "cannot get stackinfo err: %d\n", ret);
return(3);
}
stinf = (stack_info_t *)&frm->data.p;
if (VerifyOn>1)
mISDNprint_stack_info(stdout, stinf);
di->d_stid = stinf->id;
for (i=0;i<2;i++) {
if (stinf->childcnt>i)
di->b_stid[i] = stinf->child[i];
else
di->b_stid[i] = 0;
}
di->layer1 = mISDN_get_layerid(di->device, di->d_stid, 1);
if (di->layer1<0) {
fprintf(stdout, "cannot get layer1\n");
return(4);
}
if (VerifyOn>1)
fprintf(stdout, "layer1 id %08x\n", di->layer1);
/* make sure this stack just consists of layer0 + layer1 */
di->layer2 = mISDN_get_layerid(di->device, di->d_stid, 2);
if (di->layer2 > 0) {
fprintf(stdout, "layer2 found (%i), use layermask=3\n", di->layer2);
return(5);
}
ret = add_dlayer2(di);
if (ret) {
fprintf(stdout, "add_dlayer2 failed\n");
return(ret);
} else {
fprintf(stdout, "created new User-Layer2: 0x%x\n", di->layer2);
}
fprintf(stdout, "sending PH_ACTIVATE | REQUEST to layer1...\n");
ret = mISDN_write_frame(di->device, buf, di->layer2 | FLG_MSG_DOWN,
PH_ACTIVATE | REQUEST, 0, 0, NULL, 0);
// wait for PH_ACTIVATE | INDICATION or CONFIRM
t1 = get_tick_count();
while (1) {
ret = mISDN_read(di->device, buf, 2048, 0);
if (ret > 0) {
if ((frm->prim == (PH_ACTIVATE | CONFIRM)) ||
(frm->prim == (PH_ACTIVATE | INDICATION))) {
fprintf(stdout, "layer1 activated (0x%x)\n", frm->prim);
return(0);
}
/*
if (frm->prim == (MGR_SHORTSTATUS | INDICATION)) {
fprintf(stdout, "got MGR_SHORTSTATUS | INDICATION\n");
}
fprintf(stdout, "got (0x%x), still waiting for PH_ACTIVATE | CONFIRM/INDICATION...\n", frm->prim);
*/
}
if ((get_tick_count() - t1) > (TICKS_PER_SEC * 5)) {
printf(stdout, "unable to activate layer1 (TIMEOUT)\n");
return(6);
}
}
return(7);
}
int printhexdata(FILE *f, int len, u_char *p)
{
while(len--) {
fprintf(f, "0x%02x", *p++);
if (len)
fprintf(f, " ");
}
fprintf(f, "\n");
return(0);
}
void main_data_loop(devinfo_t *di)
{
long t1;
unsigned char buf[2048];
unsigned char tx_buf[2048];
iframe_t *frm = (iframe_t *)buf;
int ret, i;
t1 = get_tick_count();
printf ("waiting for data (use CTRL-C to cancel)...\n");
while (1) {
/* read data */
ret = mISDN_read(di->device, buf, 2048, 0);
if (ret >= mISDN_HEADER_LEN) {
switch(frm->prim) {
case (PH_DATA | INDICATION) :
// layer1 gives rx frame
printf ("(PH_DATA | INDICATION) : \n\t");
printhexdata(stdout, frm->len, buf + mISDN_HEADER_LEN);
break;
case (PH_DATA | CONFIRM) :
// layer1 confirmes tx frame
di->unconfirmed--;
break;
default:
printf ("unhandled prim(0x%x) len(0x%x)\n", frm->prim, frm->len);
}
}
/* write data */
if ((get_tick_count()-t1) > TICKS_PER_SEC) {
printf(".\n");
i=0;
/* send fake d-channel frame, here Tei request */
tx_buf[i++] = 0xfC;
tx_buf[i++] = 0xff;
tx_buf[i++] = 0x03;
tx_buf[i++] = 0x0f;
tx_buf[i++] = 0xe9;
tx_buf[i++] = 0x69;
tx_buf[i++] = 0x01;
tx_buf[i++] = 0xff;
ret = mISDN_write_frame(di->device, buf, di->layer2 | FLG_MSG_DOWN,
PH_DATA | REQUEST, 0, 8, tx_buf, 10);
if (ret>0) {
fprintf(stdout,"unable to send data (0x%x)\n", ret);
} else {
di->unconfirmed++;
}
t1 = get_tick_count();
}
}
}
int main(argc,argv)
int argc;
char *argv[];
{
int aidx=1;
char sw;
int err;
fprintf(stdout,"\n\nTest-L1 $Revision$\n");
memset(&mISDN, 0, sizeof(mISDN));
mISDN.cardnr = 1;
mISDN.func = 0;
if (argc<1) {
fprintf(stderr,"Error: Not enough arguments please check\n");
usage(argv[0]);
exit(1);
} else {
do {
if (argv[aidx] && argv[aidx][0]=='-') {
sw=argv[aidx][1];
switch (sw) {
case 'v':
case 'V':
VerifyOn=1;
if (argv[aidx][2]) {
VerifyOn=atol(&argv[aidx][2]);
}
break;
case 'c':
if (argv[aidx][2]) {
mISDN.cardnr=atol(&argv[aidx][2]);
}
break;
case 'F':
if (argv[aidx][2]) {
mISDN.func=atol(&argv[aidx][2]);
}
break;
case '?' :
usage(argv[0]);
exit(1);
break;
default : fprintf(stderr,"Unknown Switch %c\n",sw);
usage(argv[0]);
exit(1);
break;
}
}
aidx++;
} while (aidx<argc);
}
if (0>(mISDN.device = mISDN_open())) {
printf("TestmISDN cannot open mISDN due to %s\n",
strerror(errno));
return(1);
}
set_signals();
err = do_setup(&mISDN);
if (err) {
fprintf(stdout, "do_setup error %d\n", err);
return(0);
}
main_data_loop(&mISDN);
err=mISDN_close(mISDN.device);
if (err)
fprintf(stdout,"mISDN_close: error(%d): %s\n", err,
strerror(err));
return(0);
}