/***
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*
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* tools/nomaccfg.c
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* Configuration tool for the RTmac/NoMAC discipline
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*
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* RTmac - real-time networking media access control subsystem
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* Copyright (C) 2002 Marc Kleine-Budde <kleine-budde@gmx.de>,
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* 2003, 2004 Jan Kiszka <Jan.Kiszka@web.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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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 <errno.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <nomac_chrdev.h>
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static int f;
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static struct nomac_config nomac_cfg;
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void help(void)
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{
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fprintf(stderr, "Usage:\n"
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"\tnomaccfg <dev> attach\n"
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"\tnomaccfg <dev> detach\n");
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exit(1);
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}
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void do_attach(int argc, char *argv[])
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{
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int r;
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if (argc != 3)
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help();
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r = ioctl(f, NOMAC_IOC_ATTACH, &nomac_cfg);
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if (r < 0) {
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perror("ioctl");
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exit(1);
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}
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exit(0);
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}
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void do_detach(int argc, char *argv[])
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{
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int r;
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if (argc != 3)
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help();
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r = ioctl(f, NOMAC_IOC_DETACH, &nomac_cfg);
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if (r < 0) {
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perror("ioctl");
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exit(1);
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}
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exit(0);
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}
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int main(int argc, char *argv[])
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{
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if ((argc < 3) || (strcmp(argv[1], "--help") == 0))
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help();
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f = open("/dev/rtnet", O_RDWR);
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if (f < 0) {
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perror("/dev/rtnet");
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exit(1);
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}
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strncpy(nomac_cfg.head.if_name, argv[1], IFNAMSIZ);
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if (strcmp(argv[2], "attach") == 0)
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do_attach(argc,argv);
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if (strcmp(argv[2], "detach") == 0)
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do_detach(argc,argv);
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help();
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return 0;
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}
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