diff options
Diffstat (limited to 'usr.sbin/bootpd/rtmsg.c')
| -rw-r--r-- | usr.sbin/bootpd/rtmsg.c | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/usr.sbin/bootpd/rtmsg.c b/usr.sbin/bootpd/rtmsg.c deleted file mode 100644 index 6de610271f48..000000000000 --- a/usr.sbin/bootpd/rtmsg.c +++ /dev/null @@ -1,236 +0,0 @@ -/* - * Copyright (c) 1984, 1993 - * The Regents of the University of California. All rights reserved. - * Copyright (c) 1994 - * Geoffrey M. Rehmet, All rights reserved. - * - * This code is derived from software which forms part of the 4.4-Lite - * Berkeley software distribution, which was in 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. - */ - -/* - * from arp.c 8.2 (Berkeley) 1/2/94 - * $Id$ - */ - -#include <sys/param.h> -/* - * Verify that we are at least 4.4 BSD - */ -#if defined(BSD) -#if BSD >= 199306 - -#include <sys/socket.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 <errno.h> -#include <stdio.h> -#include <string.h> -#include <syslog.h> -#include <unistd.h> - -#include "report.h" - - -static int rtmsg __P((int)); - -static int s = -1; /* routing socket */ - - -/* - * Open the routing socket - */ -static void getsocket () { - if (s < 0) { - s = socket(PF_ROUTE, SOCK_RAW, 0); - if (s < 0) { - report(LOG_ERR, "socket %s", strerror(errno)); - exit(1); - } - } -} - -static struct sockaddr_in so_mask = {8, 0, 0, { 0xffffffff}}; -static struct sockaddr_inarp blank_sin = {sizeof(blank_sin), AF_INET }, sin_m; -static struct sockaddr_dl blank_sdl = {sizeof(blank_sdl), AF_LINK }, sdl_m; -static int expire_time, flags, export_only, doing_proxy; -static struct { - struct rt_msghdr m_rtm; - char m_space[512]; -} m_rtmsg; - -/* - * Set an individual arp entry - */ -int bsd_arp_set(ia, eaddr, len) - struct in_addr *ia; - char *eaddr; - int len; -{ - register struct sockaddr_inarp *sin = &sin_m; - register struct sockaddr_dl *sdl; - register struct rt_msghdr *rtm = &(m_rtmsg.m_rtm); - u_char *ea; - struct timeval time; - - getsocket(); - sdl_m = blank_sdl; - sin_m = blank_sin; - sin->sin_addr = *ia; - - ea = (u_char *)LLADDR(&sdl_m); - bcopy(eaddr, ea, len); - sdl_m.sdl_alen = len; - doing_proxy = flags = export_only = expire_time = 0; - - /* make arp entry temporary */ - gettimeofday(&time, 0); - expire_time = time.tv_sec + 20 * 60; - -tryagain: - if (rtmsg(RTM_GET) < 0) { - report(LOG_WARNING, "rtmget: %s", strerror(errno)); - 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) { - report(LOG_WARNING, "set: can only proxy for %s\n", - inet_ntoa(sin->sin_addr)); - return (1); - } - if (sin_m.sin_other & SIN_PROXY) { - report(LOG_WARNING, - "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) { - report(LOG_WARNING, - "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)); -} - - -static int rtmsg(cmd) - int 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; - bzero((char *)&m_rtmsg, sizeof(m_rtmsg)); - rtm->rtm_flags = flags; - rtm->rtm_version = RTM_VERSION; - - switch (cmd) { - default: - report(LOG_ERR, "set_arp: internal wrong cmd - exiting"); - 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; - - 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 && cmd == RTM_ADD)){ - report(LOG_WARNING, "writing to routing socket: %s", - strerror(errno)); - return (-1); - } - } - do { - l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); - } while (l > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != getpid())); - if (l < 0) - report(LOG_WARNING, "arp: read from routing socket: %s\n", - strerror(errno)); - return (0); -} - -#endif /* BSD */ -#endif /* BSD >= 199306 */ |