summaryrefslogtreecommitdiffstats
path: root/usr.sbin/rarpd/arptab.c
diff options
context:
space:
mode:
Diffstat (limited to 'usr.sbin/rarpd/arptab.c')
-rw-r--r--usr.sbin/rarpd/arptab.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/usr.sbin/rarpd/arptab.c b/usr.sbin/rarpd/arptab.c
deleted file mode 100644
index 7757814..0000000
--- a/usr.sbin/rarpd/arptab.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * Copyright (c) 1984, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Sun Microsystems, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-static char copyright[] =
-"@(#) Copyright (c) 1984, 1993\n\
- The Regents of the University of California. All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-static char sccsid[] = "@(#)arp.c 8.2 (Berkeley) 1/2/94";
-#endif /* not lint */
-
-/*
- * set arp table entries
- */
-
-
-#include <sys/param.h>
-#include <sys/file.h>
-#include <sys/socket.h>
-#include <sys/sysctl.h>
-
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/if_types.h>
-#include <net/route.h>
-
-#include <netinet/in.h>
-#include <netinet/if_ether.h>
-
-#include <arpa/inet.h>
-
-#include <netdb.h>
-#include <errno.h>
-#include <nlist.h>
-#include <stdio.h>
-#include <paths.h>
-#include <syslog.h>
-
-extern int errno;
-static int pid;
-static int s = -1;
-
-getsocket() {
- if (s < 0) {
- s = socket(PF_ROUTE, SOCK_RAW, 0);
- if (s < 0) {
- perror("arp: socket");
- exit(1);
- }
- }
-}
-
-struct sockaddr_in so_mask = {8, 0, 0, { 0xffffffff}};
-struct sockaddr_inarp blank_sin = {sizeof(blank_sin), AF_INET }, sin_m;
-struct sockaddr_dl blank_sdl = {sizeof(blank_sdl), AF_LINK }, sdl_m;
-int expire_time, flags, export_only, doing_proxy;
-struct {
- struct rt_msghdr m_rtm;
- char m_space[512];
-} m_rtmsg;
-
-/*
- * Set an individual arp entry
- */
-arptab_set(eaddr, host)
- u_char *eaddr;
- u_long host;
-{
- register struct sockaddr_inarp *sin = &sin_m;
- register struct sockaddr_dl *sdl;
- register struct rt_msghdr *rtm = &(m_rtmsg.m_rtm);
- struct timeval time;
-
- getsocket();
- pid = getpid();
- sdl_m = blank_sdl;
- sin_m = blank_sin;
- sin->sin_addr.s_addr = host;
- bcopy((char *)eaddr, (u_char *)LLADDR(&sdl_m), 6);
- sdl_m.sdl_alen = 6;
- doing_proxy = flags = export_only = expire_time = 0;
- gettimeofday(&time, 0);
- expire_time = time.tv_sec + 20 * 60;
-
-tryagain:
- if (rtmsg(RTM_GET) < 0) {
- syslog(LOG_ERR,"%s: %m", inet_ntoa(sin->sin_addr));
- return (1);
- }
- sin = (struct sockaddr_inarp *)(rtm + 1);
- sdl = (struct sockaddr_dl *)(sin->sin_len + (char *)sin);
- if (sin->sin_addr.s_addr == sin_m.sin_addr.s_addr) {
- if (sdl->sdl_family == AF_LINK &&
- (rtm->rtm_flags & RTF_LLINFO) &&
- !(rtm->rtm_flags & RTF_GATEWAY)) switch (sdl->sdl_type) {
- case IFT_ETHER: case IFT_FDDI: case IFT_ISO88023:
- case IFT_ISO88024: case IFT_ISO88025:
- goto overwrite;
- }
- if (doing_proxy == 0) {
- syslog(LOG_ERR, "arptab_set: can only proxy for %s\n", inet_ntoa(sin->sin_addr));
- return (1);
- }
- if (sin_m.sin_other & SIN_PROXY) {
- syslog(LOG_ERR,"arptab_set: proxy entry exists for non 802 device\n");
- return(1);
- }
- sin_m.sin_other = SIN_PROXY;
- export_only = 1;
- goto tryagain;
- }
-overwrite:
- if (sdl->sdl_family != AF_LINK) {
- syslog(LOG_ERR,"arptab_set: cannot intuit interface index and type for %s\n", inet_ntoa(sin->sin_addr));
- return (1);
- }
- sdl_m.sdl_type = sdl->sdl_type;
- sdl_m.sdl_index = sdl->sdl_index;
- return (rtmsg(RTM_ADD));
-}
-
-rtmsg(cmd)
-{
- static int seq;
- int rlen;
- register struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
- register char *cp = m_rtmsg.m_space;
- register int l;
-
- errno = 0;
- if (cmd == RTM_DELETE)
- goto doit;
- bzero((char *)&m_rtmsg, sizeof(m_rtmsg));
- rtm->rtm_flags = flags;
- rtm->rtm_version = RTM_VERSION;
-
- switch (cmd) {
- default:
- syslog(LOG_ERR, "arptap_set: internal wrong cmd\n");
- exit(1);
- case RTM_ADD:
- rtm->rtm_addrs |= RTA_GATEWAY;
- rtm->rtm_rmx.rmx_expire = expire_time;
- rtm->rtm_inits = RTV_EXPIRE;
- rtm->rtm_flags |= (RTF_HOST | RTF_STATIC);
- sin_m.sin_other = 0;
- if (doing_proxy) {
- if (export_only)
- sin_m.sin_other = SIN_PROXY;
- else {
- rtm->rtm_addrs |= RTA_NETMASK;
- rtm->rtm_flags &= ~RTF_HOST;
- }
- }
- /* FALLTHROUGH */
- case RTM_GET:
- rtm->rtm_addrs |= RTA_DST;
- }
-#define NEXTADDR(w, s) \
- if (rtm->rtm_addrs & (w)) { \
- bcopy((char *)&s, cp, sizeof(s)); cp += sizeof(s);}
-
- NEXTADDR(RTA_DST, sin_m);
- NEXTADDR(RTA_GATEWAY, sdl_m);
- NEXTADDR(RTA_NETMASK, so_mask);
-
- rtm->rtm_msglen = cp - (char *)&m_rtmsg;
-doit:
- l = rtm->rtm_msglen;
- rtm->rtm_seq = ++seq;
- rtm->rtm_type = cmd;
- if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) {
- if (errno != ESRCH && errno != EEXIST) {
- syslog(LOG_ERR, "writing to routing socket: %m");
- return (-1);
- }
- }
- do {
- l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg));
- } while (l > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid));
- if (l < 0)
- syslog(LOG_ERR, "arptab_set: read from routing socket: %m");
- return (0);
-}
OpenPOWER on IntegriCloud