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-rw-r--r--gsm.cpp145
1 files changed, 4 insertions, 141 deletions
diff --git a/gsm.cpp b/gsm.cpp
index 7245632..e7216dd 100644
--- a/gsm.cpp
+++ b/gsm.cpp
@@ -119,7 +119,7 @@ void Pgsm::bchannel_close(void)
static int b_handler(struct lcr_fd *fd, unsigned int what, void *instance, int index);
-/* open bsc side bchannel */
+/* open external side bchannel */
int Pgsm::bchannel_open(int index)
{
int ret;
@@ -295,70 +295,10 @@ void gsm_trace_header(struct mISDNport *mISDNport, class PmISDN *port, unsigned
msgtext);
}
-/* select bchannel */
+/* select free bchannel from loopback interface */
int Pgsm::hunt_bchannel(void)
{
- int channel;
- int i;
- char map[p_m_mISDNport->b_num];
- struct interface *interface;
- struct interface_port *ifport;
-
- chan_trace_header(p_m_mISDNport, this, "CHANNEL SELECTION (setup)", DIRECTION_NONE);
- add_trace("channel", "reserved", "%d", p_m_mISDNport->b_reserved);
- if (p_m_mISDNport->b_reserved >= p_m_mISDNport->b_num) { // of out chan..
- add_trace("conclusion", NULL, "all channels are reserved");
- end_trace();
- return(-34); // no channel
- }
-
- /* map all used ports of shared loopback interface */
- memset(map, 0, sizeof(map));
- interface = interface_first;
- while(interface) {
- ifport = interface->ifport;
- while(ifport) {
-#if defined WITH_GSM_BS && defined WITH_GSM_MS
- if ((ifport->gsm_bs || ifport->gsm_ms) && ifport->mISDNport) {
-#else
-#ifdef WITH_GSM_BS
- if (ifport->gsm_bs && ifport->mISDNport) {
-#endif
-#ifdef WITH_GSM_MS
- if (ifport->gsm_ms && ifport->mISDNport) {
-#endif
-#endif
- i = 0;
- while(i < p_m_mISDNport->b_num) {
- if (p_m_mISDNport->b_port[i])
- map[i] = 1;
- i++;
- }
- }
- ifport = ifport->next;
- }
- interface = interface->next;
- }
-
- /* find channel */
- i = 0;
- channel = 0;
- while(i < p_m_mISDNport->b_num) {
- if (!map[i]) {
- channel = i+1+(i>=15);
- break;
- }
- i++;
- }
- if (!channel) {
- add_trace("conclusion", NULL, "no channel available");
- end_trace();
- return(-6); // channel unacceptable
- }
- add_trace("conclusion", NULL, "channel available");
- add_trace("connect", "channel", "%d", channel);
- end_trace();
- return(channel);
+ return loop_hunt_bchannel(this, p_m_mISDNport);
}
/* PROCEEDING INDICATION */
@@ -884,87 +824,10 @@ static int b_handler(struct lcr_fd *fd, unsigned int what, void *instance, int i
return 0;
}
-static void gsm_sock_close(void)
-{
- if (gsm->gsm_sock > -1)
- close(gsm->gsm_sock);
- gsm->gsm_sock = -1;
-}
-
-static int gsm_sock_open(char *portname)
-{
- int ret;
- int cnt;
- unsigned long on = 1;
- struct sockaddr_mISDN addr;
- struct mISDN_devinfo devinfo;
- int pri, bri;
-
- /* check port counts */
- ret = ioctl(mISDNsocket, IMGETCOUNT, &cnt);
- if (ret < 0) {
- fprintf(stderr, "Cannot get number of mISDN devices. (ioctl IMGETCOUNT failed ret=%d)\n", ret);
- return(ret);
- }
-
- if (cnt <= 0) {
- PERROR_RUNTIME("Found no card. Please be sure to load card drivers.\n");
- return -EIO;
- }
- gsm->gsm_port = mISDN_getportbyname(mISDNsocket, cnt, portname);
- if (gsm->gsm_port < 0) {
- PERROR_RUNTIME("Port name '%s' not found, did you load loopback interface for GSM?.\n", portname);
- return gsm->gsm_port;
- }
- /* get protocol */
- bri = pri = 0;
- devinfo.id = gsm->gsm_port;
- ret = ioctl(mISDNsocket, IMGETDEVINFO, &devinfo);
- if (ret < 0) {
- PERROR_RUNTIME("Cannot get device information for port %d. (ioctl IMGETDEVINFO failed ret=%d)\n", gsm->gsm_port, ret);
- return ret;
- }
- if (devinfo.Dprotocols & (1 << ISDN_P_TE_S0)) {
- bri = 1;
- }
- if (devinfo.Dprotocols & (1 << ISDN_P_TE_E1)) {
- pri = 1;
- }
- if (!pri && !pri) {
- PERROR_RUNTIME("GSM port %d does not support TE PRI or TE BRI.\n", gsm->gsm_port);
- }
- /* open socket */
- if ((gsm->gsm_sock = socket(PF_ISDN, SOCK_DGRAM, (pri)?ISDN_P_TE_E1:ISDN_P_TE_S0)) < 0) {
- PERROR_RUNTIME("GSM port %d failed to open socket.\n", gsm->gsm_port);
- gsm_sock_close();
- return gsm->gsm_sock;
- }
- /* set nonblocking io */
- if ((ret = ioctl(gsm->gsm_sock, FIONBIO, &on)) < 0) {
- PERROR_RUNTIME("GSM port %d failed to set socket into nonblocking io.\n", gsm->gsm_port);
- gsm_sock_close();
- return ret;
- }
- /* bind socket to dchannel */
- memset(&addr, 0, sizeof(addr));
- addr.family = AF_ISDN;
- addr.dev = gsm->gsm_port;
- addr.channel = 0;
- if ((ret = bind(gsm->gsm_sock, (struct sockaddr *)&addr, sizeof(addr))) < 0) {
- PERROR_RUNTIME("GSM port %d failed to bind socket. (name = %s errno=%d)\n", gsm->gsm_port, portname, errno);
- gsm_sock_close();
- return (ret);
- }
-
- return 0;
-}
-
int gsm_exit(int rc)
{
/* free gsm instance */
if (gsm) {
- if (gsm->gsm_sock > -1)
- gsm_sock_close();
free(gsm);
gsm = NULL;
}
@@ -996,7 +859,7 @@ int gsm_init(void)
}
/* open gsm loop interface */
- if (gsm_sock_open(gsm->conf.interface_bsc)) {
+ if (loopback_open()) {
return gsm_exit(-1);
}