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-rw-r--r--usr.sbin/rtsold/if.c438
1 files changed, 0 insertions, 438 deletions
diff --git a/usr.sbin/rtsold/if.c b/usr.sbin/rtsold/if.c
deleted file mode 100644
index c555d2a..0000000
--- a/usr.sbin/rtsold/if.c
+++ /dev/null
@@ -1,438 +0,0 @@
-/* $KAME: if.c,v 1.27 2003/10/05 00:09:36 itojun Exp $ */
-
-/*
- * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
- * All rights reserved.
- *
- * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
- *
- * $FreeBSD$
- */
-
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <sys/sysctl.h>
-#include <sys/ioctl.h>
-#include <sys/queue.h>
-
-#include <net/if.h>
-#include <net/if_var.h>
-#include <net/if_types.h>
-#include <net/route.h>
-#include <net/if_dl.h>
-#include <net/if_media.h>
-#include <net/ethernet.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-
-#include <netinet6/in6_var.h>
-#include <netinet6/nd6.h>
-
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <syslog.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <limits.h>
-#include <ifaddrs.h>
-#include "rtsold.h"
-
-extern int rssock;
-static int ifsock;
-
-static int get_llflag(const char *);
-static void get_rtaddrs(int, struct sockaddr *, struct sockaddr **);
-
-int
-ifinit(void)
-{
- ifsock = rssock;
-
- return(0);
-}
-
-int
-interface_up(char *name)
-{
- struct ifreq ifr;
- struct in6_ndireq nd;
- int llflag;
- int s;
-
- memset(&ifr, 0, sizeof(ifr));
- strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
- memset(&nd, 0, sizeof(nd));
- strlcpy(nd.ifname, name, sizeof(nd.ifname));
-
- if (ioctl(ifsock, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
- warnmsg(LOG_WARNING, __func__, "ioctl(SIOCGIFFLAGS): %s",
- strerror(errno));
- return(-1);
- }
- if (!(ifr.ifr_flags & IFF_UP)) {
- ifr.ifr_flags |= IFF_UP;
- if (ioctl(ifsock, SIOCSIFFLAGS, (caddr_t)&ifr) < 0)
- warnmsg(LOG_ERR, __func__,
- "ioctl(SIOCSIFFLAGS): %s", strerror(errno));
- return(-1);
- }
- if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
- warnmsg(LOG_WARNING, __func__, "socket(AF_INET6, SOCK_DGRAM): %s",
- strerror(errno));
- return(-1);
- }
- if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
- warnmsg(LOG_WARNING, __func__, "ioctl(SIOCGIFINFO_IN6): %s",
- strerror(errno));
- close(s);
- return(-1);
- }
-
- warnmsg(LOG_DEBUG, __func__, "checking if %s is ready...", name);
-
- if (nd.ndi.flags & ND6_IFF_IFDISABLED) {
- if (Fflag) {
- nd.ndi.flags &= ~ND6_IFF_IFDISABLED;
- if (ioctl(s, SIOCSIFINFO_IN6, (caddr_t)&nd)) {
- warnmsg(LOG_WARNING, __func__,
- "ioctl(SIOCSIFINFO_IN6): %s",
- strerror(errno));
- close(s);
- return(-1);
- }
- } else {
- warnmsg(LOG_WARNING, __func__,
- "%s is disabled.", name);
- close(s);
- return(-1);
- }
- }
- if (!(nd.ndi.flags & ND6_IFF_ACCEPT_RTADV)) {
- if (Fflag) {
- nd.ndi.flags |= ND6_IFF_ACCEPT_RTADV;
- if (ioctl(s, SIOCSIFINFO_IN6, (caddr_t)&nd)) {
- warnmsg(LOG_WARNING, __func__,
- "ioctl(SIOCSIFINFO_IN6): %s",
- strerror(errno));
- close(s);
- return(-1);
- }
- } else {
- warnmsg(LOG_WARNING, __func__,
- "%s does not accept Router Advertisement.", name);
- close(s);
- return(-1);
- }
- }
- close(s);
-
- llflag = get_llflag(name);
- if (llflag < 0) {
- warnmsg(LOG_WARNING, __func__,
- "get_llflag() failed, anyway I'll try");
- return 0;
- }
-
- if (!(llflag & IN6_IFF_NOTREADY)) {
- warnmsg(LOG_DEBUG, __func__, "%s is ready", name);
- return(0);
- } else {
- if (llflag & IN6_IFF_TENTATIVE) {
- warnmsg(LOG_DEBUG, __func__, "%s is tentative",
- name);
- return IFS_TENTATIVE;
- }
- if (llflag & IN6_IFF_DUPLICATED)
- warnmsg(LOG_DEBUG, __func__, "%s is duplicated",
- name);
- return -1;
- }
-}
-
-int
-interface_status(struct ifinfo *ifinfo)
-{
- char *ifname = ifinfo->ifname;
- struct ifreq ifr;
- struct ifmediareq ifmr;
-
- /* get interface flags */
- memset(&ifr, 0, sizeof(ifr));
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
- if (ioctl(ifsock, SIOCGIFFLAGS, &ifr) < 0) {
- warnmsg(LOG_ERR, __func__, "ioctl(SIOCGIFFLAGS) on %s: %s",
- ifname, strerror(errno));
- return(-1);
- }
- /*
- * if one of UP and RUNNING flags is dropped,
- * the interface is not active.
- */
- if ((ifr.ifr_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) {
- goto inactive;
- }
-
- /* Next, check carrier on the interface, if possible */
- if (!ifinfo->mediareqok)
- goto active;
- memset(&ifmr, 0, sizeof(ifmr));
- strncpy(ifmr.ifm_name, ifname, sizeof(ifmr.ifm_name));
-
- if (ioctl(ifsock, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) {
- if (errno != EINVAL) {
- warnmsg(LOG_DEBUG, __func__,
- "ioctl(SIOCGIFMEDIA) on %s: %s",
- ifname, strerror(errno));
- return(-1);
- }
- /*
- * EINVAL simply means that the interface does not support
- * the SIOCGIFMEDIA ioctl. We regard it alive.
- */
- ifinfo->mediareqok = 0;
- goto active;
- }
-
- if (ifmr.ifm_status & IFM_AVALID) {
- switch (ifmr.ifm_active & IFM_NMASK) {
- case IFM_ETHER:
- case IFM_IEEE80211:
- if (ifmr.ifm_status & IFM_ACTIVE)
- goto active;
- else
- goto inactive;
- break;
- default:
- goto inactive;
- }
- }
-
- inactive:
- return(0);
-
- active:
- return(1);
-}
-
-#define ROUNDUP(a, size) \
- (((a) & ((size)-1)) ? (1 + ((a) | ((size)-1))) : (a))
-
-#define NEXT_SA(ap) (ap) = (struct sockaddr *) \
- ((caddr_t)(ap) + ((ap)->sa_len ? ROUNDUP((ap)->sa_len,\
- sizeof(u_long)) : sizeof(u_long)))
-#define ROUNDUP8(a) (1 + (((a) - 1) | 7))
-
-int
-lladdropt_length(struct sockaddr_dl *sdl)
-{
- switch (sdl->sdl_type) {
- case IFT_ETHER:
-#ifdef IFT_IEEE80211
- case IFT_IEEE80211:
-#endif
- return(ROUNDUP8(ETHER_ADDR_LEN + 2));
- default:
- return(0);
- }
-}
-
-void
-lladdropt_fill(struct sockaddr_dl *sdl, struct nd_opt_hdr *ndopt)
-{
- char *addr;
-
- ndopt->nd_opt_type = ND_OPT_SOURCE_LINKADDR; /* fixed */
-
- switch (sdl->sdl_type) {
- case IFT_ETHER:
-#ifdef IFT_IEEE80211
- case IFT_IEEE80211:
-#endif
- ndopt->nd_opt_len = (ROUNDUP8(ETHER_ADDR_LEN + 2)) >> 3;
- addr = (char *)(ndopt + 1);
- memcpy(addr, LLADDR(sdl), ETHER_ADDR_LEN);
- break;
- default:
- warnmsg(LOG_ERR, __func__,
- "unsupported link type(%d)", sdl->sdl_type);
- exit(1);
- }
-
- return;
-}
-
-struct sockaddr_dl *
-if_nametosdl(char *name)
-{
- int mib[6] = {CTL_NET, AF_ROUTE, 0, 0, NET_RT_IFLIST, 0};
- char *buf, *next, *lim;
- size_t len;
- struct if_msghdr *ifm;
- struct sockaddr *sa, *rti_info[RTAX_MAX];
- struct sockaddr_dl *sdl = NULL, *ret_sdl;
-
- if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0)
- return(NULL);
- if ((buf = malloc(len)) == NULL)
- return(NULL);
- if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
- free(buf);
- return(NULL);
- }
-
- lim = buf + len;
- for (next = buf; next < lim; next += ifm->ifm_msglen) {
- ifm = (struct if_msghdr *)next;
- if (ifm->ifm_type == RTM_IFINFO) {
- sa = (struct sockaddr *)(ifm + 1);
- get_rtaddrs(ifm->ifm_addrs, sa, rti_info);
- if ((sa = rti_info[RTAX_IFP]) != NULL) {
- if (sa->sa_family == AF_LINK) {
- sdl = (struct sockaddr_dl *)sa;
- if (strlen(name) != sdl->sdl_nlen)
- continue; /* not same len */
- if (strncmp(&sdl->sdl_data[0],
- name,
- sdl->sdl_nlen) == 0) {
- break;
- }
- }
- }
- }
- }
- if (next == lim) {
- /* search failed */
- free(buf);
- return(NULL);
- }
-
- if ((ret_sdl = malloc(sdl->sdl_len)) == NULL) {
- free(buf);
- return(NULL);
- }
- memcpy((caddr_t)ret_sdl, (caddr_t)sdl, sdl->sdl_len);
-
- free(buf);
- return(ret_sdl);
-}
-
-int
-getinet6sysctl(int code)
-{
- int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, 0 };
- int value;
- size_t size;
-
- mib[3] = code;
- size = sizeof(value);
- if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), &value, &size, NULL, 0) < 0)
- return -1;
- else
- return value;
-}
-
-int
-setinet6sysctl(int code, int newval)
-{
- int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, 0 };
- int value;
- size_t size;
-
- mib[3] = code;
- size = sizeof(value);
- if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), &value, &size,
- &newval, sizeof(newval)) < 0)
- return -1;
- else
- return value;
-}
-
-/*------------------------------------------------------------*/
-
-/* get ia6_flags for link-local addr on if. returns -1 on error. */
-static int
-get_llflag(const char *name)
-{
- struct ifaddrs *ifap, *ifa;
- struct in6_ifreq ifr6;
- struct sockaddr_in6 *sin6;
- int s;
-
- if ((s = socket(PF_INET6, SOCK_DGRAM, 0)) < 0) {
- warnmsg(LOG_ERR, __func__, "socket(SOCK_DGRAM): %s",
- strerror(errno));
- exit(1);
- }
- if (getifaddrs(&ifap) != 0) {
- warnmsg(LOG_ERR, __func__, "getifaddrs: %s",
- strerror(errno));
- exit(1);
- }
-
- for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
- if (strlen(ifa->ifa_name) != strlen(name) ||
- strncmp(ifa->ifa_name, name, strlen(name)) != 0)
- continue;
- if (ifa->ifa_addr->sa_family != AF_INET6)
- continue;
- sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
- if (!IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr))
- continue;
-
- memset(&ifr6, 0, sizeof(ifr6));
- strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name));
- memcpy(&ifr6.ifr_ifru.ifru_addr, sin6, sin6->sin6_len);
- if (ioctl(s, SIOCGIFAFLAG_IN6, &ifr6) < 0) {
- warnmsg(LOG_ERR, __func__,
- "ioctl(SIOCGIFAFLAG_IN6): %s", strerror(errno));
- exit(1);
- }
-
- freeifaddrs(ifap);
- close(s);
- return ifr6.ifr_ifru.ifru_flags6;
- }
-
- freeifaddrs(ifap);
- close(s);
- return -1;
-}
-
-
-static void
-get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info)
-{
- int i;
-
- for (i = 0; i < RTAX_MAX; i++) {
- if (addrs & (1 << i)) {
- rti_info[i] = sa;
- NEXT_SA(sa);
- } else
- rti_info[i] = NULL;
- }
-}
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