diff options
Diffstat (limited to 'usr.sbin/mrouted/ipip.c')
| -rw-r--r-- | usr.sbin/mrouted/ipip.c | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/usr.sbin/mrouted/ipip.c b/usr.sbin/mrouted/ipip.c deleted file mode 100644 index 6e88d932d3b4..000000000000 --- a/usr.sbin/mrouted/ipip.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * The mrouted program is covered by the license in the accompanying file - * named "LICENSE". Use of the mrouted program represents acceptance of - * the terms and conditions listed in that file. - * - * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of - * Leland Stanford Junior University. - * - * - * ipip.c,v 3.8.4.6 1998/01/06 01:57:45 fenner Exp - */ - - -#include "defs.h" - -#ifndef lint -static char rcsid[] = "@(#) $Id: \ -ipip.c,v 3.8.4.6 1998/01/06 01:57:45 fenner Exp $"; -#endif - -/* - * Exported variables. - */ -#ifdef notyet -int raw_socket; /* socket for raw network I/O */ -#endif -/* - *XXX For now, we just use the IGMP socket to send packets. - * This is legal in BSD, because the protocol # is not checked - * on raw sockets. The k_* interfaces need to gain a socket - * argument so that we can call them on the raw_socket also. - */ -#define raw_socket igmp_socket - -/* - * Private variables. - */ -static int rawid = 0; - -/* - * Open and initialize the raw socket. - */ -void -init_ipip() -{ -#ifdef notyet - if ((raw_socket = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) - log(LOG_ERR, errno, "Raw IP socket"); -#endif -} - -/* - * Allocate and fill in static IP header for encapsulating on a tunnel. - */ -void -init_ipip_on_vif(v) - struct uvif *v; -{ - struct ip *ip; - - ip = v->uv_encap_hdr = (struct ip *)malloc(sizeof(struct ip)); - if (ip == NULL) - log(LOG_ERR, 0, "out of memory"); - bzero(ip, sizeof(struct ip)); - /* - * Fields zeroed that aren't filled in later: - * - IP ID (let the kernel fill it in) - * - Offset (we don't send fragments) - * - Checksum (let the kernel fill it in) - */ - ip->ip_v = IPVERSION; - ip->ip_hl = sizeof(struct ip) >> 2; - ip->ip_tos = 0xc0; /* Internet Control */ - ip->ip_ttl = MAXTTL; /* applies to unicasts only */ - ip->ip_p = IPPROTO_IPIP; - ip->ip_src.s_addr = v->uv_lcl_addr; - ip->ip_dst.s_addr = v->uv_rmt_addr; -} - -/* - * Call build_igmp() to build an IGMP message in the output packet buffer. - * Then fill in the fields of the IP packet that build_igmp() left for the - * kernel to fill in, and encapsulate the original packet with the - * pre-created ip header for this vif. - */ -void -send_ipip(src, dst, type, code, group, datalen, v) - u_int32 src, dst; - int type, code; - u_int32 group; - int datalen; - struct uvif *v; -{ - struct msghdr msg; - struct iovec iov[2]; - struct sockaddr_in sdst; - struct ip *ip; - - build_igmp(src, dst, type, code, group, datalen); - ip = (struct ip *)send_buf; -#ifndef RAW_OUTPUT_IS_RAW - ip->ip_len = htons(ip->ip_len); -#endif - ip->ip_id = htons(rawid++); - ip->ip_sum = 0; - ip->ip_sum = inet_cksum((u_short *)ip, ip->ip_hl << 2); - - ip = v->uv_encap_hdr; - ip->ip_len = 2 * MIN_IP_HEADER_LEN + IGMP_MINLEN + datalen; -#ifdef RAW_OUTPUT_IS_RAW - ip->ip_len = htons(ip->ip_len); -#endif - - bzero(&sdst, sizeof(sdst)); - sdst.sin_family = AF_INET; -#ifdef HAVE_SA_LEN - sdst.sin_len = sizeof(sdst); -#endif - sdst.sin_addr = ip->ip_dst; - - iov[0].iov_base = (caddr_t)v->uv_encap_hdr; - iov[0].iov_len = sizeof(struct ip); - iov[1].iov_base = (caddr_t)send_buf; - iov[1].iov_len = MIN_IP_HEADER_LEN + IGMP_MINLEN + datalen; - - bzero(&msg, sizeof(msg)); - msg.msg_name = (caddr_t)&sdst; - msg.msg_namelen = sizeof(sdst); - msg.msg_iov = iov; - msg.msg_iovlen = 2; - if (sendmsg(raw_socket, &msg, 0) < 0) { - if (errno == ENETDOWN) - check_vif_state(); - else - log(LOG_WARNING, errno, - "sendmsg to %s on %s", - inet_fmt(sdst.sin_addr.s_addr, s1), inet_fmt(src, s2)); - } - - IF_DEBUG(DEBUG_PKT|igmp_debug_kind(type, code)) - log(LOG_DEBUG, 0, "SENT %s from %-15s to %s encaped to %s", - igmp_packet_kind(type, code), src == INADDR_ANY ? "INADDR_ANY" : - inet_fmt(src, s1), inet_fmt(dst, s2), - inet_fmt(sdst.sin_addr.s_addr, s3)); -} |