125 lines
3.3 KiB
C
125 lines
3.3 KiB
C
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/*****************************************************************************\
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** **
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** isdnbridge **
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** **
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**---------------------------------------------------------------------------**
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** Copyright: Andreas Eversberg (GPL) **
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** **
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** control l1oip virtual cards **
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** **
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\*****************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <netdb.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <mlayer3.h>
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#include <mbuffer.h>
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#include <errno.h>
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int main(int argc, char *argv[])
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{
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int ret;
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int count;
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int sock;
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struct hostent *hostent;
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struct servent *servent;
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struct mISDN_ctrl_req crq;
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memset(&crq, 0, sizeof(crq));
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/* usage */
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if (argc <= 1) {
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usage:
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printf(
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"Usage: %s <port> [param]\n"
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"Param is:\n"
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" unsetpeer -> releases current peer IP\n"
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" setpeer <remote host> <remote port> [<local port>]\n"
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, argv[0]);
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return(0);
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}
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if (argc <= 2) {
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fprintf(stderr, "Missing parameter.\n");
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goto usage;
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}
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crq.dev = atoi(argv[1]);
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if (!strcmp(argv[2], "setpeer")) {
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crq.op = MISDN_CTRL_SETPEER;
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if (argc <= 3) {
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fprintf(stderr, "Missing remote host.\n");
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goto usage;
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}
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hostent = gethostbyname(argv[3]);
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if (!hostent) {
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fprintf(stderr, "Given host %s not found.\n", argv[3]);
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return(0);
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}
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if (hostent->h_addrtype != AF_INET || hostent->h_length != 4) {
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fprintf(stderr, "Given host %s is not IPv4 address.\n", argv[3]);
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return(0);
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}
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crq.p1 = ntohl(*(unsigned int *)hostent->h_addr);
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if (argc <= 4) {
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fprintf(stderr, "Missing remote port.\n");
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goto usage;
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}
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servent = getservbyname(argv[3], "udp");
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if (!servent) {
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fprintf(stderr, "Given port %s not found.\n", argv[4]);
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return(0);
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}
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crq.p2 = ntohs(servent->s_port);
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if (argc > 4) {
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servent = getservbyname(argv[4], "udp");
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if (!servent) {
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fprintf(stderr, "Given port %s not found.\n", argv[5]);
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return(0);
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}
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crq.p2 |= ntohs(servent->s_port) << 16;
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}
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} else
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if (!strcmp(argv[2], "unsetpeer")) {
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crq.op = MISDN_CTRL_UNSETPEER;
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} else {
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fprintf(stderr, "Unknown parameter.\n");
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goto usage;
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}
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/* open mISDN */
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sock = socket(PF_ISDN, SOCK_RAW, ISDN_P_BASE);
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if (sock < 0) {
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fprintf(stderr, "Cannot open mISDN due to %s. (Does your Kernel support socket based mISDN?)\n", strerror(errno));
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exit(EXIT_FAILURE);
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}
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/* get number of stacks */
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ret = ioctl(sock, IMGETCOUNT, &count);
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if (ret < 0) {
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fprintf(stderr, "Cannot get number of mISDN devices. (ioctl IMGETCOUNT failed ret=%d)\n", ret);
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goto done;
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}
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if (count <= 0) {
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printf("Found no card. Please be sure to load card drivers.\n");
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goto done;
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}
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ret = ioctl(sock, IMCTRLREQ, &crq);
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if (ret < 0) {
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fprintf(stderr, "IMCTRLREQ failed for port %d. (ret=%d)\n", crq.dev, ret);
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goto done;
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}
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/* output the port info */
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printf("Done.");
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done:
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close(sock);
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return(0);
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}
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