diff options
Diffstat (limited to 'usr.sbin/ndp/ndp.c')
| -rw-r--r-- | usr.sbin/ndp/ndp.c | 1639 |
1 files changed, 0 insertions, 1639 deletions
diff --git a/usr.sbin/ndp/ndp.c b/usr.sbin/ndp/ndp.c deleted file mode 100644 index 6926a27..0000000 --- a/usr.sbin/ndp/ndp.c +++ /dev/null @@ -1,1639 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: ndp.c,v 1.104 2003/06/27 07:48:39 itojun Exp $ */ - -/* - * Copyright (C) 1995, 1996, 1997, 1998, and 1999 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. - */ -/* - * 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. - * 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. - */ - -/* - * Based on: - * "@(#) Copyright (c) 1984, 1993\n\ - * The Regents of the University of California. All rights reserved.\n"; - * - * "@(#)arp.c 8.2 (Berkeley) 1/2/94"; - */ - -/* - * ndp - display, set, delete and flush neighbor cache - */ - - -#include <sys/param.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#include <sys/sysctl.h> -#include <sys/time.h> -#include <sys/queue.h> - -#include <net/if.h> -#include <net/if_var.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 <netinet/icmp6.h> -#include <netinet6/in6_var.h> -#include <netinet6/nd6.h> - -#include <arpa/inet.h> - -#include <netdb.h> -#include <errno.h> -#include <nlist.h> -#include <stdio.h> -#include <string.h> -#include <paths.h> -#include <err.h> -#include <stdlib.h> -#include <fcntl.h> -#include <unistd.h> -#include "gmt2local.h" - -/* packing rule for routing socket */ -#define ROUNDUP(a) \ - ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) -#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) - -#define NEXTADDR(w, s) \ - if (rtm->rtm_addrs & (w)) { \ - bcopy((char *)&s, cp, sizeof(s)); cp += SA_SIZE(&s);} - - -static pid_t pid; -static int nflag; -static int tflag; -static int32_t thiszone; /* time difference with gmt */ -static int s = -1; -static int repeat = 0; - -char ntop_buf[INET6_ADDRSTRLEN]; /* inet_ntop() */ -char host_buf[NI_MAXHOST]; /* getnameinfo() */ -char ifix_buf[IFNAMSIZ]; /* if_indextoname() */ - -int main(int, char **); -int file(char *); -void getsocket(void); -int set(int, char **); -void get(char *); -int delete(char *); -void dump(struct in6_addr *, int); -static struct in6_nbrinfo *getnbrinfo(struct in6_addr *, int, int); -static char *ether_str(struct sockaddr_dl *); -int ndp_ether_aton(char *, u_char *); -void usage(void); -int rtmsg(int); -void ifinfo(char *, int, char **); -void rtrlist(void); -void plist(void); -void pfx_flush(void); -void rtr_flush(void); -void harmonize_rtr(void); -#ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */ -static void getdefif(void); -static void setdefif(char *); -#endif -static char *sec2str(time_t); -static char *ether_str(struct sockaddr_dl *); -static void ts_print(const struct timeval *); - -#ifdef ICMPV6CTL_ND6_DRLIST -static char *rtpref_str[] = { - "medium", /* 00 */ - "high", /* 01 */ - "rsv", /* 10 */ - "low" /* 11 */ -}; -#endif - -int mode = 0; -char *arg = NULL; - -int -main(argc, argv) - int argc; - char **argv; -{ - int ch; - - pid = getpid(); - thiszone = gmt2local(0); - while ((ch = getopt(argc, argv, "acd:f:Ii:nprstA:HPR")) != -1) - switch (ch) { - case 'a': - case 'c': - case 'p': - case 'r': - case 'H': - case 'P': - case 'R': - case 's': - case 'I': - if (mode) { - usage(); - /*NOTREACHED*/ - } - mode = ch; - arg = NULL; - break; - case 'd': - case 'f': - case 'i' : - if (mode) { - usage(); - /*NOTREACHED*/ - } - mode = ch; - arg = optarg; - break; - case 'n': - nflag = 1; - break; - case 't': - tflag = 1; - break; - case 'A': - if (mode) { - usage(); - /*NOTREACHED*/ - } - mode = 'a'; - repeat = atoi(optarg); - if (repeat < 0) { - usage(); - /*NOTREACHED*/ - } - break; - default: - usage(); - } - - argc -= optind; - argv += optind; - - switch (mode) { - case 'a': - case 'c': - if (argc != 0) { - usage(); - /*NOTREACHED*/ - } - dump(0, mode == 'c'); - break; - case 'd': - if (argc != 0) { - usage(); - /*NOTREACHED*/ - } - delete(arg); - break; - case 'I': -#ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */ - if (argc > 1) { - usage(); - /*NOTREACHED*/ - } else if (argc == 1) { - if (strcmp(*argv, "delete") == 0 || - if_nametoindex(*argv)) - setdefif(*argv); - else - errx(1, "invalid interface %s", *argv); - } - getdefif(); /* always call it to print the result */ - break; -#else - errx(1, "not supported yet"); - /*NOTREACHED*/ -#endif - case 'p': - if (argc != 0) { - usage(); - /*NOTREACHED*/ - } - plist(); - break; - case 'i': - ifinfo(arg, argc, argv); - break; - case 'r': - if (argc != 0) { - usage(); - /*NOTREACHED*/ - } - rtrlist(); - break; - case 's': - if (argc < 2 || argc > 4) - usage(); - exit(set(argc, argv) ? 1 : 0); - case 'H': - if (argc != 0) { - usage(); - /*NOTREACHED*/ - } - harmonize_rtr(); - break; - case 'P': - if (argc != 0) { - usage(); - /*NOTREACHED*/ - } - pfx_flush(); - break; - case 'R': - if (argc != 0) { - usage(); - /*NOTREACHED*/ - } - rtr_flush(); - break; - case 0: - if (argc != 1) { - usage(); - /*NOTREACHED*/ - } - get(argv[0]); - break; - } - exit(0); -} - -/* - * Process a file to set standard ndp entries - */ -int -file(name) - char *name; -{ - FILE *fp; - int i, retval; - char line[100], arg[5][50], *args[5]; - - if ((fp = fopen(name, "r")) == NULL) { - fprintf(stderr, "ndp: cannot open %s\n", name); - exit(1); - } - args[0] = &arg[0][0]; - args[1] = &arg[1][0]; - args[2] = &arg[2][0]; - args[3] = &arg[3][0]; - args[4] = &arg[4][0]; - retval = 0; - while (fgets(line, sizeof(line), fp) != NULL) { - i = sscanf(line, "%49s %49s %49s %49s %49s", - arg[0], arg[1], arg[2], arg[3], arg[4]); - if (i < 2) { - fprintf(stderr, "ndp: bad line: %s\n", line); - retval = 1; - continue; - } - if (set(i, args)) - retval = 1; - } - fclose(fp); - return (retval); -} - -void -getsocket() -{ - if (s < 0) { - s = socket(PF_ROUTE, SOCK_RAW, 0); - if (s < 0) { - err(1, "socket"); - /* NOTREACHED */ - } - } -} - -struct sockaddr_in6 so_mask = {sizeof(so_mask), AF_INET6 }; -struct sockaddr_in6 blank_sin = {sizeof(blank_sin), AF_INET6 }, sin_m; -struct sockaddr_dl blank_sdl = {sizeof(blank_sdl), AF_LINK }, sdl_m; -int expire_time, flags, found_entry; -struct { - struct rt_msghdr m_rtm; - char m_space[512]; -} m_rtmsg; - -/* - * Set an individual neighbor cache entry - */ -int -set(argc, argv) - int argc; - char **argv; -{ - register struct sockaddr_in6 *sin = &sin_m; - register struct sockaddr_dl *sdl; - register struct rt_msghdr *rtm = &(m_rtmsg.m_rtm); - struct addrinfo hints, *res; - int gai_error; - u_char *ea; - char *host = argv[0], *eaddr = argv[1]; - - getsocket(); - argc -= 2; - argv += 2; - sdl_m = blank_sdl; - sin_m = blank_sin; - - bzero(&hints, sizeof(hints)); - hints.ai_family = AF_INET6; - gai_error = getaddrinfo(host, NULL, &hints, &res); - if (gai_error) { - fprintf(stderr, "ndp: %s: %s\n", host, - gai_strerror(gai_error)); - return 1; - } - sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr; -#ifdef __KAME__ - if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) { - *(u_int16_t *)&sin->sin6_addr.s6_addr[2] = - htons(((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id); - } -#endif - ea = (u_char *)LLADDR(&sdl_m); - if (ndp_ether_aton(eaddr, ea) == 0) - sdl_m.sdl_alen = 6; - flags = expire_time = 0; - while (argc-- > 0) { - if (strncmp(argv[0], "temp", 4) == 0) { - struct timeval time; - - gettimeofday(&time, 0); - expire_time = time.tv_sec + 20 * 60; - } else if (strncmp(argv[0], "proxy", 5) == 0) - flags |= RTF_ANNOUNCE; - argv++; - } - if (rtmsg(RTM_GET) < 0) { - errx(1, "RTM_GET(%s) failed", host); - /* NOTREACHED */ - } - sin = (struct sockaddr_in6 *)(rtm + 1); - sdl = (struct sockaddr_dl *)(ROUNDUP(sin->sin6_len) + (char *)sin); - if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) { - if (sdl->sdl_family == AF_LINK && - !(rtm->rtm_flags & RTF_GATEWAY)) { - switch (sdl->sdl_type) { - case IFT_ETHER: case IFT_FDDI: case IFT_ISO88023: - case IFT_ISO88024: case IFT_ISO88025: - case IFT_L2VLAN: case IFT_BRIDGE: - goto overwrite; - } - } - /* - * IPv4 arp command retries with sin_other = SIN_PROXY here. - */ - fprintf(stderr, "set: cannot configure a new entry\n"); - return 1; - } - -overwrite: - if (sdl->sdl_family != AF_LINK) { - printf("cannot intuit interface index and type for %s\n", host); - return (1); - } - sdl_m.sdl_type = sdl->sdl_type; - sdl_m.sdl_index = sdl->sdl_index; - return (rtmsg(RTM_ADD)); -} - -/* - * Display an individual neighbor cache entry - */ -void -get(host) - char *host; -{ - struct sockaddr_in6 *sin = &sin_m; - struct addrinfo hints, *res; - int gai_error; - - sin_m = blank_sin; - bzero(&hints, sizeof(hints)); - hints.ai_family = AF_INET6; - gai_error = getaddrinfo(host, NULL, &hints, &res); - if (gai_error) { - fprintf(stderr, "ndp: %s: %s\n", host, - gai_strerror(gai_error)); - return; - } - sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr; -#ifdef __KAME__ - if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) { - *(u_int16_t *)&sin->sin6_addr.s6_addr[2] = - htons(((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id); - } -#endif - dump(&sin->sin6_addr, 0); - if (found_entry == 0) { - getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf, - sizeof(host_buf), NULL ,0, - (nflag ? NI_NUMERICHOST : 0)); - printf("%s (%s) -- no entry\n", host, host_buf); - exit(1); - } -} - -/* - * Delete a neighbor cache entry - */ -int -delete(host) - char *host; -{ - struct sockaddr_in6 *sin = &sin_m; - register struct rt_msghdr *rtm = &m_rtmsg.m_rtm; - register char *cp = m_rtmsg.m_space; - struct sockaddr_dl *sdl; - struct addrinfo hints, *res; - int gai_error; - - getsocket(); - sin_m = blank_sin; - - bzero(&hints, sizeof(hints)); - hints.ai_family = AF_INET6; - gai_error = getaddrinfo(host, NULL, &hints, &res); - if (gai_error) { - fprintf(stderr, "ndp: %s: %s\n", host, - gai_strerror(gai_error)); - return 1; - } - sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr; -#ifdef __KAME__ - if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) { - *(u_int16_t *)&sin->sin6_addr.s6_addr[2] = - htons(((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id); - } -#endif - if (rtmsg(RTM_GET) < 0) { - errx(1, "RTM_GET(%s) failed", host); - /* NOTREACHED */ - } - sin = (struct sockaddr_in6 *)(rtm + 1); - sdl = (struct sockaddr_dl *)(ROUNDUP(sin->sin6_len) + (char *)sin); - if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_addr)) { - if (sdl->sdl_family == AF_LINK && - !(rtm->rtm_flags & RTF_GATEWAY)) { - goto delete; - } - /* - * IPv4 arp command retries with sin_other = SIN_PROXY here. - */ - fprintf(stderr, "delete: cannot delete non-NDP entry\n"); - return 1; - } - -delete: - if (sdl->sdl_family != AF_LINK) { - printf("cannot locate %s\n", host); - return (1); - } - /* - * need to reinit the field because it has rt_key - * but we want the actual address - */ - NEXTADDR(RTA_DST, sin_m); - rtm->rtm_flags |= RTF_LLDATA; - if (rtmsg(RTM_DELETE) == 0) { - struct sockaddr_in6 s6 = *sin; /* XXX: for safety */ - -#ifdef __KAME__ - if (IN6_IS_ADDR_LINKLOCAL(&s6.sin6_addr)) { - s6.sin6_scope_id = ntohs(*(u_int16_t *)&s6.sin6_addr.s6_addr[2]); - *(u_int16_t *)&s6.sin6_addr.s6_addr[2] = 0; - } -#endif - getnameinfo((struct sockaddr *)&s6, - s6.sin6_len, host_buf, - sizeof(host_buf), NULL, 0, - (nflag ? NI_NUMERICHOST : 0)); - printf("%s (%s) deleted\n", host, host_buf); - } - - return 0; -} - -#define W_ADDR 36 -#define W_LL 17 -#define W_IF 6 - -/* - * Dump the entire neighbor cache - */ -void -dump(addr, cflag) - struct in6_addr *addr; - int cflag; -{ - int mib[6]; - size_t needed; - char *lim, *buf, *next; - struct rt_msghdr *rtm; - struct sockaddr_in6 *sin; - struct sockaddr_dl *sdl; - extern int h_errno; - struct in6_nbrinfo *nbi; - struct timeval time; - int addrwidth; - int llwidth; - int ifwidth; - char flgbuf[8]; - char *ifname; - - /* Print header */ - if (!tflag && !cflag) - printf("%-*.*s %-*.*s %*.*s %-9.9s %1s %5s\n", - W_ADDR, W_ADDR, "Neighbor", W_LL, W_LL, "Linklayer Address", - W_IF, W_IF, "Netif", "Expire", "S", "Flags"); - -again:; - mib[0] = CTL_NET; - mib[1] = PF_ROUTE; - mib[2] = 0; - mib[3] = AF_INET6; - mib[4] = NET_RT_FLAGS; -#ifdef RTF_LLINFO - mib[5] = RTF_LLINFO; -#else - mib[5] = 0; -#endif - if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) - err(1, "sysctl(PF_ROUTE estimate)"); - if (needed > 0) { - if ((buf = malloc(needed)) == NULL) - err(1, "malloc"); - if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) - err(1, "sysctl(PF_ROUTE, NET_RT_FLAGS)"); - lim = buf + needed; - } else - buf = lim = NULL; - - for (next = buf; next && next < lim; next += rtm->rtm_msglen) { - int isrouter = 0, prbs = 0; - - rtm = (struct rt_msghdr *)next; - sin = (struct sockaddr_in6 *)(rtm + 1); - sdl = (struct sockaddr_dl *)((char *)sin + ROUNDUP(sin->sin6_len)); - - /* - * Some OSes can produce a route that has the LINK flag but - * has a non-AF_LINK gateway (e.g. fe80::xx%lo0 on FreeBSD - * and BSD/OS, where xx is not the interface identifier on - * lo0). Such routes entry would annoy getnbrinfo() below, - * so we skip them. - * XXX: such routes should have the GATEWAY flag, not the - * LINK flag. However, there is rotten routing software - * that advertises all routes that have the GATEWAY flag. - * Thus, KAME kernel intentionally does not set the LINK flag. - * What is to be fixed is not ndp, but such routing software - * (and the kernel workaround)... - */ - if (sdl->sdl_family != AF_LINK) - continue; - - if (!(rtm->rtm_flags & RTF_HOST)) - continue; - - if (addr) { - if (!IN6_ARE_ADDR_EQUAL(addr, &sin->sin6_addr)) - continue; - found_entry = 1; - } else if (IN6_IS_ADDR_MULTICAST(&sin->sin6_addr)) - continue; - if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) || - IN6_IS_ADDR_MC_LINKLOCAL(&sin->sin6_addr)) { - /* XXX: should scope id be filled in the kernel? */ - if (sin->sin6_scope_id == 0) - sin->sin6_scope_id = sdl->sdl_index; -#ifdef __KAME__ - /* KAME specific hack; removed the embedded id */ - *(u_int16_t *)&sin->sin6_addr.s6_addr[2] = 0; -#endif - } - getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf, - sizeof(host_buf), NULL, 0, (nflag ? NI_NUMERICHOST : 0)); - if (cflag) { -#ifdef RTF_WASCLONED - if (rtm->rtm_flags & RTF_WASCLONED) - delete(host_buf); -#elif defined(RTF_CLONED) - if (rtm->rtm_flags & RTF_CLONED) - delete(host_buf); -#else - delete(host_buf); -#endif - continue; - } - gettimeofday(&time, 0); - if (tflag) - ts_print(&time); - - addrwidth = strlen(host_buf); - if (addrwidth < W_ADDR) - addrwidth = W_ADDR; - llwidth = strlen(ether_str(sdl)); - if (W_ADDR + W_LL - addrwidth > llwidth) - llwidth = W_ADDR + W_LL - addrwidth; - ifname = if_indextoname(sdl->sdl_index, ifix_buf); - if (!ifname) - ifname = "?"; - ifwidth = strlen(ifname); - if (W_ADDR + W_LL + W_IF - addrwidth - llwidth > ifwidth) - ifwidth = W_ADDR + W_LL + W_IF - addrwidth - llwidth; - - printf("%-*.*s %-*.*s %*.*s", addrwidth, addrwidth, host_buf, - llwidth, llwidth, ether_str(sdl), ifwidth, ifwidth, ifname); - - /* Print neighbor discovery specific informations */ - nbi = getnbrinfo(&sin->sin6_addr, sdl->sdl_index, 1); - if (nbi) { - if (nbi->expire > time.tv_sec) { - printf(" %-9.9s", - sec2str(nbi->expire - time.tv_sec)); - } else if (nbi->expire == 0) - printf(" %-9.9s", "permanent"); - else - printf(" %-9.9s", "expired"); - - switch (nbi->state) { - case ND6_LLINFO_NOSTATE: - printf(" N"); - break; -#ifdef ND6_LLINFO_WAITDELETE - case ND6_LLINFO_WAITDELETE: - printf(" W"); - break; -#endif - case ND6_LLINFO_INCOMPLETE: - printf(" I"); - break; - case ND6_LLINFO_REACHABLE: - printf(" R"); - break; - case ND6_LLINFO_STALE: - printf(" S"); - break; - case ND6_LLINFO_DELAY: - printf(" D"); - break; - case ND6_LLINFO_PROBE: - printf(" P"); - break; - default: - printf(" ?"); - break; - } - - isrouter = nbi->isrouter; - prbs = nbi->asked; - } else { - warnx("failed to get neighbor information"); - printf(" "); - } - - /* - * other flags. R: router, P: proxy, W: ?? - */ - if ((rtm->rtm_addrs & RTA_NETMASK) == 0) { - snprintf(flgbuf, sizeof(flgbuf), "%s%s", - isrouter ? "R" : "", - (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : ""); - } else { - sin = (struct sockaddr_in6 *) - (sdl->sdl_len + (char *)sdl); -#if 0 /* W and P are mystery even for us */ - snprintf(flgbuf, sizeof(flgbuf), "%s%s%s%s", - isrouter ? "R" : "", - !IN6_IS_ADDR_UNSPECIFIED(&sin->sin6_addr) ? "P" : "", - (sin->sin6_len != sizeof(struct sockaddr_in6)) ? "W" : "", - (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : ""); -#else - snprintf(flgbuf, sizeof(flgbuf), "%s%s", - isrouter ? "R" : "", - (rtm->rtm_flags & RTF_ANNOUNCE) ? "p" : ""); -#endif - } - printf(" %s", flgbuf); - - if (prbs) - printf(" %d", prbs); - - printf("\n"); - } - if (buf != NULL) - free(buf); - - if (repeat) { - printf("\n"); - fflush(stdout); - sleep(repeat); - goto again; - } -} - -static struct in6_nbrinfo * -getnbrinfo(addr, ifindex, warning) - struct in6_addr *addr; - int ifindex; - int warning; -{ - static struct in6_nbrinfo nbi; - int s; - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) - err(1, "socket"); - - bzero(&nbi, sizeof(nbi)); - if_indextoname(ifindex, nbi.ifname); - nbi.addr = *addr; - if (ioctl(s, SIOCGNBRINFO_IN6, (caddr_t)&nbi) < 0) { - if (warning) - warn("ioctl(SIOCGNBRINFO_IN6)"); - close(s); - return(NULL); - } - - close(s); - return(&nbi); -} - -static char * -ether_str(sdl) - struct sockaddr_dl *sdl; -{ - static char hbuf[NI_MAXHOST]; - u_char *cp; - - if (sdl->sdl_alen) { - cp = (u_char *)LLADDR(sdl); - snprintf(hbuf, sizeof(hbuf), "%x:%x:%x:%x:%x:%x", - cp[0], cp[1], cp[2], cp[3], cp[4], cp[5]); - } else - snprintf(hbuf, sizeof(hbuf), "(incomplete)"); - - return(hbuf); -} - -int -ndp_ether_aton(a, n) - char *a; - u_char *n; -{ - int i, o[6]; - - i = sscanf(a, "%x:%x:%x:%x:%x:%x", &o[0], &o[1], &o[2], - &o[3], &o[4], &o[5]); - if (i != 6) { - fprintf(stderr, "ndp: invalid Ethernet address '%s'\n", a); - return (1); - } - for (i = 0; i < 6; i++) - n[i] = o[i]; - return (0); -} - -void -usage() -{ - printf("usage: ndp [-nt] hostname\n"); - printf(" ndp [-nt] -a | -c | -p | -r | -H | -P | -R\n"); - printf(" ndp [-nt] -A wait\n"); - printf(" ndp [-nt] -d hostname\n"); - printf(" ndp [-nt] -f filename\n"); - printf(" ndp [-nt] -i interface [flags...]\n"); -#ifdef SIOCSDEFIFACE_IN6 - printf(" ndp [-nt] -I [interface|delete]\n"); -#endif - printf(" ndp [-nt] -s nodename etheraddr [temp] [proxy]\n"); - exit(1); -} - -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; - 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: - fprintf(stderr, "ndp: internal wrong cmd\n"); - exit(1); - case RTM_ADD: - rtm->rtm_addrs |= RTA_GATEWAY; - if (expire_time) { - rtm->rtm_rmx.rmx_expire = expire_time; - rtm->rtm_inits = RTV_EXPIRE; - } - rtm->rtm_flags |= (RTF_HOST | RTF_STATIC | RTF_LLDATA); -#if 0 /* we don't support ipv6addr/128 type proxying */ - if (rtm->rtm_flags & RTF_ANNOUNCE) { - rtm->rtm_flags &= ~RTF_HOST; - rtm->rtm_addrs |= RTA_NETMASK; - } -#endif - /* FALLTHROUGH */ - case RTM_GET: - rtm->rtm_addrs |= RTA_DST; - } - - NEXTADDR(RTA_DST, sin_m); - NEXTADDR(RTA_GATEWAY, sdl_m); -#if 0 /* we don't support ipv6addr/128 type proxying */ - memset(&so_mask.sin6_addr, 0xff, sizeof(so_mask.sin6_addr)); - NEXTADDR(RTA_NETMASK, so_mask); -#endif - - 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 || cmd != RTM_DELETE) { - err(1, "writing to routing socket"); - /* NOTREACHED */ - } - } - do { - l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); - } while (l > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid)); - if (l < 0) - (void) fprintf(stderr, "ndp: read from routing socket: %s\n", - strerror(errno)); - return (0); -} - -void -ifinfo(ifname, argc, argv) - char *ifname; - int argc; - char **argv; -{ - struct in6_ndireq nd; - int i, s; - u_int32_t newflags; -#ifdef IPV6CTL_USETEMPADDR - u_int8_t nullbuf[8]; -#endif - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { - err(1, "socket"); - /* NOTREACHED */ - } - bzero(&nd, sizeof(nd)); - strlcpy(nd.ifname, ifname, sizeof(nd.ifname)); - if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) { - err(1, "ioctl(SIOCGIFINFO_IN6)"); - /* NOTREACHED */ - } -#define ND nd.ndi - newflags = ND.flags; - for (i = 0; i < argc; i++) { - int clear = 0; - char *cp = argv[i]; - - if (*cp == '-') { - clear = 1; - cp++; - } - -#define SETFLAG(s, f) \ - do {\ - if (strcmp(cp, (s)) == 0) {\ - if (clear)\ - newflags &= ~(f);\ - else\ - newflags |= (f);\ - }\ - } while (0) -/* - * XXX: this macro is not 100% correct, in that it matches "nud" against - * "nudbogus". But we just let it go since this is minor. - */ -#define SETVALUE(f, v) \ - do { \ - char *valptr; \ - unsigned long newval; \ - v = 0; /* unspecified */ \ - if (strncmp(cp, f, strlen(f)) == 0) { \ - valptr = strchr(cp, '='); \ - if (valptr == NULL) \ - err(1, "syntax error in %s field", (f)); \ - errno = 0; \ - newval = strtoul(++valptr, NULL, 0); \ - if (errno) \ - err(1, "syntax error in %s's value", (f)); \ - v = newval; \ - } \ - } while (0) - - SETFLAG("disabled", ND6_IFF_IFDISABLED); - SETFLAG("nud", ND6_IFF_PERFORMNUD); -#ifdef ND6_IFF_ACCEPT_RTADV - SETFLAG("accept_rtadv", ND6_IFF_ACCEPT_RTADV); -#endif -#ifdef ND6_IFF_AUTO_LINKLOCAL - SETFLAG("auto_linklocal", ND6_IFF_AUTO_LINKLOCAL); -#endif -#ifdef ND6_IFF_PREFER_SOURCE - SETFLAG("prefer_source", ND6_IFF_PREFER_SOURCE); -#endif - SETVALUE("basereachable", ND.basereachable); - SETVALUE("retrans", ND.retrans); - SETVALUE("curhlim", ND.chlim); - - ND.flags = newflags; - if (ioctl(s, SIOCSIFINFO_IN6, (caddr_t)&nd) < 0) { - err(1, "ioctl(SIOCSIFINFO_IN6)"); - /* NOTREACHED */ - } -#undef SETFLAG -#undef SETVALUE - } - - if (!ND.initialized) { - errx(1, "%s: not initialized yet", ifname); - /* NOTREACHED */ - } - - if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) { - err(1, "ioctl(SIOCGIFINFO_IN6)"); - /* NOTREACHED */ - } - printf("linkmtu=%d", ND.linkmtu); - printf(", maxmtu=%d", ND.maxmtu); - printf(", curhlim=%d", ND.chlim); - printf(", basereachable=%ds%dms", - ND.basereachable / 1000, ND.basereachable % 1000); - printf(", reachable=%ds", ND.reachable); - printf(", retrans=%ds%dms", ND.retrans / 1000, ND.retrans % 1000); -#ifdef IPV6CTL_USETEMPADDR - memset(nullbuf, 0, sizeof(nullbuf)); - if (memcmp(nullbuf, ND.randomid, sizeof(nullbuf)) != 0) { - int j; - u_int8_t *rbuf; - - for (i = 0; i < 3; i++) { - switch (i) { - case 0: - printf("\nRandom seed(0): "); - rbuf = ND.randomseed0; - break; - case 1: - printf("\nRandom seed(1): "); - rbuf = ND.randomseed1; - break; - case 2: - printf("\nRandom ID: "); - rbuf = ND.randomid; - break; - default: - errx(1, "impossible case for tempaddr display"); - } - for (j = 0; j < 8; j++) - printf("%02x", rbuf[j]); - } - } -#endif - if (ND.flags) { - printf("\nFlags: "); -#ifdef ND6_IFF_IFDISABLED - if ((ND.flags & ND6_IFF_IFDISABLED)) - printf("disabled "); -#endif - if ((ND.flags & ND6_IFF_PERFORMNUD)) - printf("nud "); -#ifdef ND6_IFF_ACCEPT_RTADV - if ((ND.flags & ND6_IFF_ACCEPT_RTADV)) - printf("accept_rtadv "); -#endif -#ifdef ND6_IFF_AUTO_LINKLOCAL - if ((ND.flags & ND6_IFF_AUTO_LINKLOCAL)) - printf("auto_linklocal "); -#endif -#ifdef ND6_IFF_PREFER_SOURCE - if ((ND.flags & ND6_IFF_PREFER_SOURCE)) - printf("prefer_source "); -#endif - } - putc('\n', stdout); -#undef ND - - close(s); -} - -#ifndef ND_RA_FLAG_RTPREF_MASK /* XXX: just for compilation on *BSD release */ -#define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */ -#endif - -void -rtrlist() -{ -#ifdef ICMPV6CTL_ND6_DRLIST - int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_DRLIST }; - char *buf; - struct in6_defrouter *p, *ep; - size_t l; - struct timeval time; - - if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) { - err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)"); - /*NOTREACHED*/ - } - if (l == 0) - return; - buf = malloc(l); - if (!buf) { - err(1, "malloc"); - /*NOTREACHED*/ - } - if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) { - err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)"); - /*NOTREACHED*/ - } - - ep = (struct in6_defrouter *)(buf + l); - for (p = (struct in6_defrouter *)buf; p < ep; p++) { - int rtpref; - - if (getnameinfo((struct sockaddr *)&p->rtaddr, - p->rtaddr.sin6_len, host_buf, sizeof(host_buf), NULL, 0, - (nflag ? NI_NUMERICHOST : 0)) != 0) - strlcpy(host_buf, "?", sizeof(host_buf)); - - printf("%s if=%s", host_buf, - if_indextoname(p->if_index, ifix_buf)); - printf(", flags=%s%s", - p->flags & ND_RA_FLAG_MANAGED ? "M" : "", - p->flags & ND_RA_FLAG_OTHER ? "O" : ""); - rtpref = ((p->flags & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff; - printf(", pref=%s", rtpref_str[rtpref]); - - gettimeofday(&time, 0); - if (p->expire == 0) - printf(", expire=Never\n"); - else - printf(", expire=%s\n", - sec2str(p->expire - time.tv_sec)); - } - free(buf); -#else - struct in6_drlist dr; - int s, i; - struct timeval time; - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { - err(1, "socket"); - /* NOTREACHED */ - } - bzero(&dr, sizeof(dr)); - strlcpy(dr.ifname, "lo0", sizeof(dr.ifname)); /* dummy */ - if (ioctl(s, SIOCGDRLST_IN6, (caddr_t)&dr) < 0) { - err(1, "ioctl(SIOCGDRLST_IN6)"); - /* NOTREACHED */ - } -#define DR dr.defrouter[i] - for (i = 0 ; DR.if_index && i < DRLSTSIZ ; i++) { - struct sockaddr_in6 sin6; - - bzero(&sin6, sizeof(sin6)); - sin6.sin6_family = AF_INET6; - sin6.sin6_len = sizeof(sin6); - sin6.sin6_addr = DR.rtaddr; - getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, host_buf, - sizeof(host_buf), NULL, 0, - (nflag ? NI_NUMERICHOST : 0)); - - printf("%s if=%s", host_buf, - if_indextoname(DR.if_index, ifix_buf)); - printf(", flags=%s%s", - DR.flags & ND_RA_FLAG_MANAGED ? "M" : "", - DR.flags & ND_RA_FLAG_OTHER ? "O" : ""); - gettimeofday(&time, 0); - if (DR.expire == 0) - printf(", expire=Never\n"); - else - printf(", expire=%s\n", - sec2str(DR.expire - time.tv_sec)); - } -#undef DR - close(s); -#endif -} - -void -plist() -{ -#ifdef ICMPV6CTL_ND6_PRLIST - int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_PRLIST }; - char *buf; - struct in6_prefix *p, *ep, *n; - struct sockaddr_in6 *advrtr; - size_t l; - struct timeval time; - const int niflags = NI_NUMERICHOST; - int ninflags = nflag ? NI_NUMERICHOST : 0; - char namebuf[NI_MAXHOST]; - - if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) { - err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)"); - /*NOTREACHED*/ - } - buf = malloc(l); - if (!buf) { - err(1, "malloc"); - /*NOTREACHED*/ - } - if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) { - err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)"); - /*NOTREACHED*/ - } - - ep = (struct in6_prefix *)(buf + l); - for (p = (struct in6_prefix *)buf; p < ep; p = n) { - advrtr = (struct sockaddr_in6 *)(p + 1); - n = (struct in6_prefix *)&advrtr[p->advrtrs]; - - if (getnameinfo((struct sockaddr *)&p->prefix, - p->prefix.sin6_len, namebuf, sizeof(namebuf), - NULL, 0, niflags) != 0) - strlcpy(namebuf, "?", sizeof(namebuf)); - printf("%s/%d if=%s\n", namebuf, p->prefixlen, - if_indextoname(p->if_index, ifix_buf)); - - gettimeofday(&time, 0); - /* - * meaning of fields, especially flags, is very different - * by origin. notify the difference to the users. - */ - printf("flags=%s%s%s%s%s", - p->raflags.onlink ? "L" : "", - p->raflags.autonomous ? "A" : "", - (p->flags & NDPRF_ONLINK) != 0 ? "O" : "", - (p->flags & NDPRF_DETACHED) != 0 ? "D" : "", -#ifdef NDPRF_HOME - (p->flags & NDPRF_HOME) != 0 ? "H" : "" -#else - "" -#endif - ); - if (p->vltime == ND6_INFINITE_LIFETIME) - printf(" vltime=infinity"); - else - printf(" vltime=%lu", (unsigned long)p->vltime); - if (p->pltime == ND6_INFINITE_LIFETIME) - printf(", pltime=infinity"); - else - printf(", pltime=%lu", (unsigned long)p->pltime); - if (p->expire == 0) - printf(", expire=Never"); - else if (p->expire >= time.tv_sec) - printf(", expire=%s", - sec2str(p->expire - time.tv_sec)); - else - printf(", expired"); - printf(", ref=%d", p->refcnt); - printf("\n"); - /* - * "advertising router" list is meaningful only if the prefix - * information is from RA. - */ - if (p->advrtrs) { - int j; - struct sockaddr_in6 *sin6; - - sin6 = advrtr; - printf(" advertised by\n"); - for (j = 0; j < p->advrtrs; j++) { - struct in6_nbrinfo *nbi; - - if (getnameinfo((struct sockaddr *)sin6, - sin6->sin6_len, namebuf, sizeof(namebuf), - NULL, 0, ninflags) != 0) - strlcpy(namebuf, "?", sizeof(namebuf)); - printf(" %s", namebuf); - - nbi = getnbrinfo(&sin6->sin6_addr, - p->if_index, 0); - if (nbi) { - switch (nbi->state) { - case ND6_LLINFO_REACHABLE: - case ND6_LLINFO_STALE: - case ND6_LLINFO_DELAY: - case ND6_LLINFO_PROBE: - printf(" (reachable)\n"); - break; - default: - printf(" (unreachable)\n"); - } - } else - printf(" (no neighbor state)\n"); - sin6++; - } - } else - printf(" No advertising router\n"); - } - free(buf); -#else - struct in6_prlist pr; - int s, i; - struct timeval time; - - gettimeofday(&time, 0); - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { - err(1, "socket"); - /* NOTREACHED */ - } - bzero(&pr, sizeof(pr)); - strlcpy(pr.ifname, "lo0", sizeof(pr.ifname)); /* dummy */ - if (ioctl(s, SIOCGPRLST_IN6, (caddr_t)&pr) < 0) { - err(1, "ioctl(SIOCGPRLST_IN6)"); - /* NOTREACHED */ - } -#define PR pr.prefix[i] - for (i = 0; PR.if_index && i < PRLSTSIZ ; i++) { - struct sockaddr_in6 p6; - char namebuf[NI_MAXHOST]; - int niflags; - -#ifdef NDPRF_ONLINK - p6 = PR.prefix; -#else - memset(&p6, 0, sizeof(p6)); - p6.sin6_family = AF_INET6; - p6.sin6_len = sizeof(p6); - p6.sin6_addr = PR.prefix; -#endif - - /* - * copy link index to sin6_scope_id field. - * XXX: KAME specific. - */ - if (IN6_IS_ADDR_LINKLOCAL(&p6.sin6_addr)) { - u_int16_t linkid; - - memcpy(&linkid, &p6.sin6_addr.s6_addr[2], - sizeof(linkid)); - linkid = ntohs(linkid); - p6.sin6_scope_id = linkid; - p6.sin6_addr.s6_addr[2] = 0; - p6.sin6_addr.s6_addr[3] = 0; - } - - niflags = NI_NUMERICHOST; - if (getnameinfo((struct sockaddr *)&p6, - sizeof(p6), namebuf, sizeof(namebuf), - NULL, 0, niflags)) { - warnx("getnameinfo failed"); - continue; - } - printf("%s/%d if=%s\n", namebuf, PR.prefixlen, - if_indextoname(PR.if_index, ifix_buf)); - - gettimeofday(&time, 0); - /* - * meaning of fields, especially flags, is very different - * by origin. notify the difference to the users. - */ -#if 0 - printf(" %s", - PR.origin == PR_ORIG_RA ? "" : "advertise: "); -#endif -#ifdef NDPRF_ONLINK - printf("flags=%s%s%s%s%s", - PR.raflags.onlink ? "L" : "", - PR.raflags.autonomous ? "A" : "", - (PR.flags & NDPRF_ONLINK) != 0 ? "O" : "", - (PR.flags & NDPRF_DETACHED) != 0 ? "D" : "", -#ifdef NDPRF_HOME - (PR.flags & NDPRF_HOME) != 0 ? "H" : "" -#else - "" -#endif - ); -#else - printf("flags=%s%s", - PR.raflags.onlink ? "L" : "", - PR.raflags.autonomous ? "A" : ""); -#endif - if (PR.vltime == ND6_INFINITE_LIFETIME) - printf(" vltime=infinity"); - else - printf(" vltime=%lu", PR.vltime); - if (PR.pltime == ND6_INFINITE_LIFETIME) - printf(", pltime=infinity"); - else - printf(", pltime=%lu", PR.pltime); - if (PR.expire == 0) - printf(", expire=Never"); - else if (PR.expire >= time.tv_sec) - printf(", expire=%s", - sec2str(PR.expire - time.tv_sec)); - else - printf(", expired"); -#ifdef NDPRF_ONLINK - printf(", ref=%d", PR.refcnt); -#endif -#if 0 - switch (PR.origin) { - case PR_ORIG_RA: - printf(", origin=RA"); - break; - case PR_ORIG_RR: - printf(", origin=RR"); - break; - case PR_ORIG_STATIC: - printf(", origin=static"); - break; - case PR_ORIG_KERNEL: - printf(", origin=kernel"); - break; - default: - printf(", origin=?"); - break; - } -#endif - printf("\n"); - /* - * "advertising router" list is meaningful only if the prefix - * information is from RA. - */ - if (0 && /* prefix origin is almost obsolted */ - PR.origin != PR_ORIG_RA) - ; - else if (PR.advrtrs) { - int j; - printf(" advertised by\n"); - for (j = 0; j < PR.advrtrs; j++) { - struct sockaddr_in6 sin6; - struct in6_nbrinfo *nbi; - - bzero(&sin6, sizeof(sin6)); - sin6.sin6_family = AF_INET6; - sin6.sin6_len = sizeof(sin6); - sin6.sin6_addr = PR.advrtr[j]; - sin6.sin6_scope_id = PR.if_index; /* XXX */ - getnameinfo((struct sockaddr *)&sin6, - sin6.sin6_len, host_buf, - sizeof(host_buf), NULL, 0, - (nflag ? NI_NUMERICHOST : 0)); - printf(" %s", host_buf); - - nbi = getnbrinfo(&sin6.sin6_addr, - PR.if_index, 0); - if (nbi) { - switch (nbi->state) { - case ND6_LLINFO_REACHABLE: - case ND6_LLINFO_STALE: - case ND6_LLINFO_DELAY: - case ND6_LLINFO_PROBE: - printf(" (reachable)\n"); - break; - default: - printf(" (unreachable)\n"); - } - } else - printf(" (no neighbor state)\n"); - } - if (PR.advrtrs > DRLSTSIZ) - printf(" and %d routers\n", - PR.advrtrs - DRLSTSIZ); - } else - printf(" No advertising router\n"); - } -#undef PR - close(s); -#endif -} - -void -pfx_flush() -{ - char dummyif[IFNAMSIZ+8]; - int s; - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) - err(1, "socket"); - strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */ - if (ioctl(s, SIOCSPFXFLUSH_IN6, (caddr_t)&dummyif) < 0) - err(1, "ioctl(SIOCSPFXFLUSH_IN6)"); -} - -void -rtr_flush() -{ - char dummyif[IFNAMSIZ+8]; - int s; - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) - err(1, "socket"); - strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */ - if (ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0) - err(1, "ioctl(SIOCSRTRFLUSH_IN6)"); - - close(s); -} - -void -harmonize_rtr() -{ - char dummyif[IFNAMSIZ+8]; - int s; - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) - err(1, "socket"); - strlcpy(dummyif, "lo0", sizeof(dummyif)); /* dummy */ - if (ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0) - err(1, "ioctl(SIOCSNDFLUSH_IN6)"); - - close(s); -} - -#ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */ -static void -setdefif(ifname) - char *ifname; -{ - struct in6_ndifreq ndifreq; - unsigned int ifindex; - - if (strcasecmp(ifname, "delete") == 0) - ifindex = 0; - else { - if ((ifindex = if_nametoindex(ifname)) == 0) - err(1, "failed to resolve i/f index for %s", ifname); - } - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) - err(1, "socket"); - - strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */ - ndifreq.ifindex = ifindex; - - if (ioctl(s, SIOCSDEFIFACE_IN6, (caddr_t)&ndifreq) < 0) - err(1, "ioctl(SIOCSDEFIFACE_IN6)"); - - close(s); -} - -static void -getdefif() -{ - struct in6_ndifreq ndifreq; - char ifname[IFNAMSIZ+8]; - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) - err(1, "socket"); - - memset(&ndifreq, 0, sizeof(ndifreq)); - strlcpy(ndifreq.ifname, "lo0", sizeof(ndifreq.ifname)); /* dummy */ - - if (ioctl(s, SIOCGDEFIFACE_IN6, (caddr_t)&ndifreq) < 0) - err(1, "ioctl(SIOCGDEFIFACE_IN6)"); - - if (ndifreq.ifindex == 0) - printf("No default interface.\n"); - else { - if ((if_indextoname(ndifreq.ifindex, ifname)) == NULL) - err(1, "failed to resolve ifname for index %lu", - ndifreq.ifindex); - printf("ND default interface = %s\n", ifname); - } - - close(s); -} -#endif - -static char * -sec2str(total) - time_t total; -{ - static char result[256]; - int days, hours, mins, secs; - int first = 1; - char *p = result; - char *ep = &result[sizeof(result)]; - int n; - - days = total / 3600 / 24; - hours = (total / 3600) % 24; - mins = (total / 60) % 60; - secs = total % 60; - - if (days) { - first = 0; - n = snprintf(p, ep - p, "%dd", days); - if (n < 0 || n >= ep - p) - return "?"; - p += n; - } - if (!first || hours) { - first = 0; - n = snprintf(p, ep - p, "%dh", hours); - if (n < 0 || n >= ep - p) - return "?"; - p += n; - } - if (!first || mins) { - first = 0; - n = snprintf(p, ep - p, "%dm", mins); - if (n < 0 || n >= ep - p) - return "?"; - p += n; - } - snprintf(p, ep - p, "%ds", secs); - - return(result); -} - -/* - * Print the timestamp - * from tcpdump/util.c - */ -static void -ts_print(tvp) - const struct timeval *tvp; -{ - int s; - - /* Default */ - s = (tvp->tv_sec + thiszone) % 86400; - (void)printf("%02d:%02d:%02d.%06u ", - s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tvp->tv_usec); -} - -#undef NEXTADDR |
