/* $NetBSD: sirix.c,v 1.1.1.1 2012/03/23 21:20:07 christos Exp $ */ /* * (C)opyright 1992-1998 Darren Reed. * (C)opyright 1997 Marc Boucher. * * See the IPFILTER.LICENCE file for details on licencing. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ipsend.h" #include #if !defined(lint) && defined(LIBC_SCCS) static char sirix[] = "@(#)sirix.c 1.0 10/9/97 (C)1997 Marc Boucher"; #endif int initdevice(char *device, int tout) { int fd; struct sockaddr_raw sr; if ((fd = socket(PF_RAW, SOCK_RAW, RAWPROTO_DRAIN)) < 0) { perror("socket(PF_RAW, SOCK_RAW, RAWPROTO_DRAIN)"); return -1; } memset(&sr, 0, sizeof(sr)); sr.sr_family = AF_RAW; sr.sr_port = ETHERTYPE_IP; strncpy(sr.sr_ifname, device, sizeof(sr.sr_ifname)); if (bind(fd, &sr, sizeof(sr)) < 0) { perror("bind AF_RAW"); close(fd); return -1; } return fd; } /* * output an IP packet */ int sendip(int fd, char *pkt, int len) { struct sockaddr_raw sr; int srlen = sizeof(sr); struct ifreq ifr; struct ether_header *eh = (struct ether_header *)pkt; if (getsockname(fd, &sr, &srlen) == -1) { perror("getsockname"); return -1; } memset(&ifr, 0, sizeof(ifr)); strncpy(ifr.ifr_name, sr.sr_ifname, sizeof ifr.ifr_name); if (ioctl(fd, SIOCGIFADDR, &ifr) == -1) { perror("ioctl SIOCGIFADDR"); return -1; } memcpy(eh->ether_shost, ifr.ifr_addr.sa_data, sizeof(eh->ether_shost)); if (write(fd, pkt, len) == -1) { perror("send"); return -1; } return len; }