4 * (C)opyright 1992-1998 Darren Reed.
5 * (C)opyright 1997 Marc Boucher.
7 * See the IPFILTER.LICENCE file for details on licencing.
11 #include <sys/types.h>
16 #include <sys/socket.h>
17 #include <sys/ioctl.h>
21 #include <netinet/in.h>
22 #include <netinet/in_systm.h>
23 #include <netinet/ip.h>
24 #include <netinet/if_ether.h>
25 #include <netinet/ip_var.h>
27 #include <netinet/udp_var.h>
29 #if !defined(lint) && defined(LIBC_SCCS)
30 static char sirix[] = "@(#)sirix.c 1.0 10/9/97 (C)1997 Marc Boucher";
34 int initdevice(char *device, int tout)
37 struct sockaddr_raw sr;
39 if ((fd = socket(PF_RAW, SOCK_RAW, RAWPROTO_DRAIN)) < 0)
41 perror("socket(PF_RAW, SOCK_RAW, RAWPROTO_DRAIN)");
45 memset(&sr, 0, sizeof(sr));
46 sr.sr_family = AF_RAW;
47 sr.sr_port = ETHERTYPE_IP;
48 strncpy(sr.sr_ifname, device, sizeof(sr.sr_ifname));
49 if (bind(fd, &sr, sizeof(sr)) < 0)
51 perror("bind AF_RAW");
62 int sendip(int fd, char *pkt, int len)
64 struct sockaddr_raw sr;
65 int srlen = sizeof(sr);
67 struct ether_header *eh = (struct ether_header *)pkt;
69 if (getsockname(fd, &sr, &srlen) == -1)
71 perror("getsockname");
75 memset(&ifr, 0, sizeof(ifr));
76 strncpy(ifr.ifr_name, sr.sr_ifname, sizeof ifr.ifr_name);
78 if (ioctl(fd, SIOCGIFADDR, &ifr) == -1)
80 perror("ioctl SIOCGIFADDR");
84 memcpy(eh->ether_shost, ifr.ifr_addr.sa_data, sizeof(eh->ether_shost));
86 if (write(fd, pkt, len) == -1)