Removed complete bchannel handling from chan_lcr

[lcr.git] / loop.c

diff --git a/loop.c b/loop.c
deleted file mode 100644 (file)
index cbd82e5..0000000
--- a/loop.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*****************************************************************************\
-**                                                                           **
-** LCR                                                                       **
-**                                                                           **
-**---------------------------------------------------------------------------**
-** Copyright: Andreas Eversberg                                              **
-**                                                                           **
-** loopback interface functions                                              **
-**                                                                           **
-\*****************************************************************************/ 
-
-#include "main.h"
-
-struct mISDNloop mISDNloop = { -1, 0 };
-
-void mISDNloop_close(void)
-{
-       if (mISDNloop.sock > -1)
-               close(mISDNloop.sock);
-       mISDNloop.sock = -1;
-}
-
-int mISDNloop_open()
-{
-       int ret;
-       int cnt;
-       unsigned long on = 1;
-       struct sockaddr_mISDN addr;
-       struct mISDN_devinfo devinfo;
-       int pri, bri;
-
-       /* already open */
-       if (mISDNloop.sock > -1)
-               return 0;
-
-       PDEBUG(DEBUG_PORT, "Open external interface of loopback.\n");
-
-       /* 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;
-       }
-       mISDNloop.port = mISDN_getportbyname(mISDNsocket, cnt, options.loopback_ext);
-       if (mISDNloop.port < 0) {
-               PERROR_RUNTIME("Port name '%s' not found, did you load loopback interface?.\n", options.loopback_ext);
-               return mISDNloop.port;
-       }
-       /* get protocol */
-       bri = pri = 0;
-       devinfo.id = mISDNloop.port;
-       ret = ioctl(mISDNsocket, IMGETDEVINFO, &devinfo);
-       if (ret < 0) {
-               PERROR_RUNTIME("Cannot get device information for port %d. (ioctl IMGETDEVINFO failed ret=%d)\n", mISDNloop.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 (!bri && !pri) {
-               PERROR_RUNTIME("loop port %d does not support TE PRI or TE BRI.\n", mISDNloop.port);
-       }
-       /* open socket */
-       if ((mISDNloop.sock = socket(PF_ISDN, SOCK_DGRAM, (pri)?ISDN_P_TE_E1:ISDN_P_TE_S0)) < 0) {
-               PERROR_RUNTIME("loop port %d failed to open socket.\n", mISDNloop.port);
-               mISDNloop_close();
-               return mISDNloop.sock;
-       }
-       /* set nonblocking io */
-       if ((ret = ioctl(mISDNloop.sock, FIONBIO, &on)) < 0) {
-               PERROR_RUNTIME("loop port %d failed to set socket into nonblocking io.\n", mISDNloop.port);
-               mISDNloop_close();
-               return ret;
-       }
-       /* bind socket to dchannel */
-       memset(&addr, 0, sizeof(addr));
-       addr.family = AF_ISDN;
-       addr.dev = mISDNloop.port;
-       addr.channel = 0;
-       if ((ret = bind(mISDNloop.sock, (struct sockaddr *)&addr, sizeof(addr))) < 0) {
-               PERROR_RUNTIME("loop port %d failed to bind socket. (name = %s errno=%d)\n", mISDNloop.port, options.loopback_ext, errno);
-               mISDNloop_close();
-               return (ret);
-       }
-
-       return 0;
-}
-
-int loop_hunt_bchannel(class PmISDN *port, struct mISDNport *mISDNport)
-{
-       int channel;
-       int i;
-       char map[mISDNport->b_num];
-       struct interface *interface;
-       struct interface_port *ifport;
-
-       chan_trace_header(mISDNport, port, "CHANNEL SELECTION (setup)", DIRECTION_NONE);
-       add_trace("channel", "reserved", "%d", mISDNport->b_reserved);
-       if (mISDNport->b_reserved >= 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 (!strcmp(ifport->portname, options.loopback_lcr)) {
-                               i = 0;
-                               while(i < mISDNport->b_num) {
-                                       if (mISDNport->b_port[i])
-                                               map[i] = 1;
-                                       i++;
-                               }
-                       }
-                       ifport = ifport->next;
-               }
-               interface = interface->next;
-       }
-
-       /* find channel */
-       i = 0;
-       channel = 0;
-       while(i < 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);
-}
-
-