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This commit is contained in:
Jun-ichiro itojun Hagino 2000-07-04 16:43:14 +00:00
parent 4bfc7eeb68
commit ccf935dd81
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=62590
2 changed files with 367 additions and 121 deletions
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53
usr.sbin/ndp/ndp.8
View File

@ -1,3 +1,6 @@
.\" $FreeBSD$
.\" $KAME: ndp.8,v 1.12 2000/06/20 21:50:17 itojun Exp $
.\"
.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
.\" All rights reserved.
.\"
@ -25,9 +28,6 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $Id: ndp.8,v 1.2 1999/10/07 05:26:13 itojun Exp $
.\" $FreeBSD$
.\"
.Dd May 17, 1998
.Dt NDP 8
.Os KAME
@ -57,8 +57,12 @@
.Nm ndp
.Fl H
.Nm ndp
.Fl I
.Op delete \(ba Ar interface
.Nm ndp
.Fl i
.Ar interface
.Op Ar flags...
.Nm ndp
.Fl p
.Nm ndp
@ -72,7 +76,8 @@
.Op Fl nt
.Ar nodename
.Ar ether_addr
.Op temp
.Op Li temp
.Op Li proxy
.\"
.Sh DESCRIPTION
The
@ -99,8 +104,35 @@ Parse the file specified by
.It Fl H
Harmonize consistency between the routing table and the default router
list; install the top entry of the list into the kernel routing table.
.It Fl i
view ND information for specified interface.
.It Fl I Op delete \(ba Ar interface
Shows or specifies the default interface used as the default route when
there is no default router. If no argument is given to the option,
the current default interface will be shown.
If an
.Ar interface
is specified, the interface will be used as the default.
If a special keyword
.Ic delete
is specified, the current default interface will be deleted from the kernel.
.It Fl i Ar interface Op Ar flags...
View ND information for the specified interface.
If additional arguments
.Ar flags
are given,
.Nm
sets or clears the specified flags for the interface.
Possible flags are as follows. All of the flags can begin with the
special character
.Ql - ,
which means the flag should be cleared.
.\"
.Bl -tag -width Ds -compact
.It Xo
.Ic nud
.Xc
turn on or off NUD (Neighbor Unreachability Detection) on the
interface. NUD is usually turned on by default.
.El
.It Fl l
Do not truncate numeric IPv6 address.
.It Fl n
@ -115,6 +147,15 @@ Show default router list.
Flush all the entries in the default router list.
.It Fl s
Register a NDP entry for a node.
The entry will be permanent unless the word
.Li temp
is given in the command.
If the word
.Li proxy
is given, this system will act as an proxy NDP server,
responding to requests for
.Ar hostname
even though the host address is not its own.
.It Fl t
Print timestamp on each entries,
to make it possible to merge output with

435
usr.sbin/ndp/ndp.c
View File

@ -1,3 +1,6 @@
/* $FreeBSD$ */
/* $KAME: ndp.c,v 1.41 2000/07/04 12:54:11 jinmei Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
* All rights reserved.
@ -25,8 +28,6 @@
* 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.
*
* $FreeBSD$
*/
/*
* Copyright (c) 1984, 1993
@ -111,47 +112,55 @@
#include <unistd.h>
#include "gmt2local.h"
#ifndef NI_WITHSCOPEID
#define NI_WITHSCOPEID 0
#endif
/* packing rule for routing socket */
#define ROUNDUP(a) \
#define ROUNDUP(a) \
((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
extern int errno;
static int pid;
static int fflag;
static int nflag;
static int tflag;
static int32_t thiszone; /* time difference with gmt */
static int s = -1;
static int repeat = 0;
static int lflag = 0;
static int pid;
static int fflag;
static int nflag;
static int tflag;
static int32_t thiszone; /* time difference with gmt */
static int s = -1;
static int repeat = 0;
static int lflag = 0;
char ntop_buf[INET6_ADDRSTRLEN]; /* inet_ntop() */
char host_buf[NI_MAXHOST]; /* getnameinfo() */
char ifix_buf[IFNAMSIZ]; /* if_indextoname() */
char ntop_buf[INET6_ADDRSTRLEN]; /* inet_ntop() */
char host_buf[NI_MAXHOST]; /* getnameinfo() */
char ifix_buf[IFNAMSIZ]; /* if_indextoname() */
int main __P((int, char **));
int file __P((char *));
void getsocket __P((void));
int set __P((int, char **));
void get __P((char *));
int delete __P((char *));
void dump __P((struct in6_addr *));
static struct in6_nbrinfo *getnbrinfo __P((struct in6_addr *addr, int ifindex));
static char *ether_str __P((struct sockaddr_dl *));
int ndp_ether_aton __P((char *, u_char *));
void usage __P((void));
int rtmsg __P((int));
void ifinfo __P((char *));
void list __P((void));
void plist __P((void));
void pfx_flush __P((void));
void rtrlist __P((void));
void rtr_flush __P((void));
void harmonize_rtr __P((void));
static char *sec2str __P((time_t t));
static char *ether_str __P((struct sockaddr_dl *sdl));
static void ts_print __P((const struct timeval *));
int main __P((int, char **));
int file __P((char *));
void getsocket __P((void));
int set __P((int, char **));
void get __P((char *));
int delete __P((char *));
void dump __P((struct in6_addr *));
static struct in6_nbrinfo *getnbrinfo __P((struct in6_addr *addr,
int ifindex, int));
static char *ether_str __P((struct sockaddr_dl *));
int ndp_ether_aton __P((char *, u_char *));
void usage __P((void));
int rtmsg __P((int));
void ifinfo __P((int, char **));
void rtrlist __P((void));
void plist __P((void));
void pfx_flush __P((void));
void rtrlist __P((void));
void rtr_flush __P((void));
void harmonize_rtr __P((void));
#ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
static void getdefif __P((void));
static void setdefif __P((char *));
#endif
static char *sec2str __P((time_t t));
static char *ether_str __P((struct sockaddr_dl *sdl));
static void ts_print __P((const struct timeval *));
int
main(argc, argv)
@ -161,12 +170,10 @@ main(argc, argv)
int ch;
int aflag = 0, cflag = 0, dflag = 0, sflag = 0, Hflag = 0,
pflag = 0, rflag = 0, Pflag = 0, Rflag = 0;
extern char *optarg;
extern int optind;
pid = getpid();
thiszone = gmt2local(0);
while ((ch = getopt(argc, argv, "acndfilprstA:HPR")) != EOF)
while ((ch = getopt(argc, argv, "acndfIilprstA:HPR")) != EOF)
switch ((char)ch) {
case 'a':
aflag = 1;
@ -178,10 +185,22 @@ main(argc, argv)
case 'd':
dflag = 1;
break;
case 'I':
#ifdef SIOCSDEFIFACE_IN6 /* XXX: check SIOCGDEFIFACE_IN6 as well? */
if (argc > 2)
setdefif(argv[2]);
getdefif(); /* always call it to print the result */
exit(0);
#else
errx(1, "not supported yet");
/*NOTREACHED*/
#endif
case 'i' :
if (argc != 3)
argc -= optind;
argv += optind;
if (argc < 1)
usage();
ifinfo(argv[2]);
ifinfo(argc, argv);
exit(0);
case 'n':
nflag = 1;
@ -236,6 +255,7 @@ main(argc, argv)
if (argc != 1)
usage();
delete(argv[0]);
exit(0);
}
if (pflag) {
plist();
@ -317,7 +337,7 @@ getsocket()
}
}
struct sockaddr_in so_mask = {8, 0, 0, { 0xffffffff}};
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;
@ -357,6 +377,12 @@ set(argc, argv)
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;
@ -366,10 +392,10 @@ set(argc, argv)
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++;
}
tryagain:
if (rtmsg(RTM_GET) < 0) {
perror(host);
return (1);
@ -384,8 +410,13 @@ set(argc, argv)
case IFT_ISO88024: case IFT_ISO88025:
goto overwrite;
}
goto tryagain;
/*
* 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);
@ -417,6 +448,12 @@ get(host)
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);
if (found_entry == 0) {
getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
@ -452,7 +489,12 @@ delete(host)
return 1;
}
sin->sin6_addr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
/*tryagain:*/
#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) {
perror(host);
return (1);
@ -462,23 +504,38 @@ delete(host)
if (IN6_ARE_ADDR_EQUAL(&sin->sin6_addr, &sin_m.sin6_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 delete;
!(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 delete;
}
}
/*
* IPv4 arp command retries with sin_other = SIN_PROXY here.
*/
fprintf(stderr, "delete: cannot delete non-NDP entry\n");
return 1;
}
return 0;
delete:
if (sdl->sdl_family != AF_LINK) {
printf("cannot locate %s\n", host);
return (1);
}
if (rtmsg(RTM_DELETE) == 0) {
getnameinfo((struct sockaddr *)sin,
sin->sin6_len, host_buf,
sizeof(host_buf), NULL, 0,
NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 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,
NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
printf("%s (%s) deleted\n", host, host_buf);
}
@ -494,19 +551,19 @@ dump(addr)
{
int mib[6];
size_t needed;
char *host, *lim, *buf, *next;
char *lim, *buf, *next;
struct rt_msghdr *rtm;
struct sockaddr_in6 *sin;
struct sockaddr_dl *sdl;
extern int h_errno;
struct hostent *hp;
struct in6_nbrinfo *nbi;
struct timeval time;
int addrwidth;
char flgbuf[8];
/* Print header */
if (!tflag)
printf("%-29.29s %-18.18s %6.6s %-9.9s %2s %4s %4s\n",
printf("%-31.31s %-17.17s %6.6s %-9.9s %2s %4s %4s\n",
"Neighbor", "Linklayer Address", "Netif", "Expire",
"St", "Flgs", "Prbs");
@ -564,18 +621,17 @@ again:;
if (lflag) {
addrwidth = strlen(host_buf);
if (addrwidth < 29)
addrwidth = 29;
if (addrwidth < 31)
addrwidth = 31;
} else
addrwidth = 29;
addrwidth = 31;
printf("%-*.*s %-18.18s %6.6s", addrwidth, addrwidth, host_buf,
printf("%-*.*s %-17.17s %6.6s", addrwidth, addrwidth, host_buf,
ether_str(sdl),
if_indextoname(sdl->sdl_index, ifix_buf));
/* Print neighbor discovery specific informations */
putchar(' ');
nbi = getnbrinfo(&sin->sin6_addr, sdl->sdl_index);
nbi = getnbrinfo(&sin->sin6_addr, sdl->sdl_index, 1);
if (nbi) {
if (nbi->expire > time.tv_sec) {
printf(" %-9.9s",
@ -620,31 +676,30 @@ again:;
warnx("failed to get neighbor information");
printf(" ");
}
/* other flags */
putchar(' ');
{
u_char flgbuf[8], *p = flgbuf;
flgbuf[0] = '\0';
if (isrouter)
p += sprintf((char *)p, "R");
#ifndef RADISH
if (rtm->rtm_addrs & RTA_NETMASK) {
sin = (struct sockaddr_in6 *)
(sdl->sdl_len + (char *)sdl);
if (!IN6_IS_ADDR_UNSPECIFIED(&sin->sin6_addr))
p += sprintf((char *)p, "P");
if (sin->sin6_len != sizeof(struct sockaddr_in6))
p += sprintf((char *)p, "W");
}
#endif /*RADISH*/
printf("%4s", flgbuf);
/*
* 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);
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" : "");
}
printf(" %-4.4s", flgbuf);
putchar(' ');
if (prbs)
printf("% 4d", prbs);
printf(" %4d", prbs);
printf("\n");
}
@ -657,9 +712,10 @@ again:;
}
static struct in6_nbrinfo *
getnbrinfo(addr, ifindex)
getnbrinfo(addr, ifindex, warning)
struct in6_addr *addr;
int ifindex;
int warning;
{
static struct in6_nbrinfo nbi;
int s;
@ -671,7 +727,8 @@ getnbrinfo(addr, ifindex)
if_indextoname(ifindex, nbi.ifname);
nbi.addr = *addr;
if (ioctl(s, SIOCGNBRINFO_IN6, (caddr_t)&nbi) < 0) {
warn("ioctl");
if (warning)
warn("ioctl(SIOCGNBRINFO_IN6)");
close(s);
return(NULL);
}
@ -726,10 +783,13 @@ usage()
printf(" ndp -c[nt]\n");
printf(" ndp -d[nt] hostname\n");
printf(" ndp -f[nt] filename\n");
printf(" ndp -i interface\n");
printf(" ndp -i interface [flags...]\n");
#ifdef SIOCSDEFIFACE_IN6
printf(" ndp -I [interface|delete]\n");
#endif
printf(" ndp -p\n");
printf(" ndp -r\n");
printf(" ndp -s hostname ether_addr [temp]\n");
printf(" ndp -s hostname ether_addr [temp] [proxy]\n");
printf(" ndp -H\n");
printf(" ndp -P\n");
printf(" ndp -R\n");
@ -762,16 +822,21 @@ rtmsg(cmd)
rtm->rtm_rmx.rmx_expire = expire_time;
rtm->rtm_inits = RTV_EXPIRE;
rtm->rtm_flags |= (RTF_HOST | RTF_STATIC);
if (rtm->rtm_flags & RTF_ANNOUNCE) {
rtm->rtm_flags &= ~RTF_HOST;
rtm->rtm_flags |= RTA_NETMASK;
}
/* FALLTHROUGH */
case RTM_GET:
rtm->rtm_addrs |= RTA_DST;
}
#define NEXTADDR(w, s) \
#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);
memset(&so_mask.sin6_addr, 0xff, sizeof(so_mask.sin6_addr));
NEXTADDR(RTA_NETMASK, so_mask);
rtm->rtm_msglen = cp - (char *)&m_rtmsg;
@ -795,11 +860,14 @@ rtmsg(cmd)
}
void
ifinfo(ifname)
char *ifname;
ifinfo(argc, argv)
int argc;
char **argv;
{
struct in6_ndireq nd;
int s;
int i, s;
char *ifname = argv[0];
u_int32_t newflags;
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
perror("ndp: socket");
@ -811,14 +879,50 @@ ifinfo(ifname)
perror("ioctl (SIOCGIFINFO_IN6)");
exit(1);
}
#define ND nd.ndi
#define ND nd.ndi
newflags = ND.flags;
for (i = 1; 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)
SETFLAG("nud", ND6_IFF_PERFORMNUD);
ND.flags = newflags;
if (ioctl(s, SIOCSIFINFO_FLAGS, (caddr_t)&nd) < 0) {
perror("ioctl(SIOCSIFINFO_FLAGS)");
exit(1);
}
#undef SETFLAG
}
printf("linkmtu=%d", ND.linkmtu);
printf(", curhlim=%d", ND.chlim);
printf(", basereachable=%ds%dms",
ND.basereachable / 1000, ND.basereachable % 1000);
printf(", reachable=%ds", ND.reachable);
printf(", retrans=%ds%dms\n", ND.retrans / 1000, ND.retrans % 1000);
printf(", retrans=%ds%dms", ND.retrans / 1000, ND.retrans % 1000);
if (ND.flags) {
printf("\nFlags: ");
if ((ND.flags & ND6_IFF_PERFORMNUD) != 0)
printf("PERFORMNUD ");
}
putc('\n', stdout);
#undef ND
close(s);
}
@ -839,7 +943,7 @@ rtrlist()
perror("ioctl (SIOCGDRLST_IN6)");
exit(1);
}
#define DR dr.defrouter[i]
#define DR dr.defrouter[i]
for (i = 0 ; DR.if_index && i < PRLSTSIZ ; i++) {
struct sockaddr_in6 sin6;
@ -850,7 +954,7 @@ rtrlist()
getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, host_buf,
sizeof(host_buf), NULL, 0,
NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
printf("%s if=%s", host_buf,
if_indextoname(DR.if_index, ifix_buf));
printf(", flags=%s%s",
@ -886,14 +990,19 @@ plist()
perror("ioctl (SIOCGPRLST_IN6)");
exit(1);
}
#define PR pr.prefix[i]
#define PR pr.prefix[i]
for (i = 0; PR.if_index && i < PRLSTSIZ ; i++) {
printf("%s/%d if=%s\n",
inet_ntop(AF_INET6, &PR.prefix, ntop_buf,
sizeof(ntop_buf)), PR.prefixlen,
if_indextoname(PR.if_index, ifix_buf));
gettimeofday(&time, 0);
printf(" flags=%s%s",
/*
* meaning of fields, especially flags, is very different
* by origin. notify the difference to the users.
*/
printf(" %s", PR.origin == PR_ORIG_RA ? "" : "advertise: ");
printf("flags=%s%s",
PR.raflags.onlink ? "L" : "",
PR.raflags.autonomous ? "A" : "");
if (PR.vltime == ND6_INFINITE_LIFETIME)
@ -905,34 +1014,75 @@ plist()
else
printf(", pltime=%ld", (long)PR.pltime);
if (PR.expire == 0)
printf(", expire=Never\n");
printf(", expire=Never");
else if (PR.expire >= time.tv_sec)
printf(", expire=%s\n",
printf(", expire=%s",
sec2str(PR.expire - time.tv_sec));
else
printf(", expired\n");
if (PR.advrtrs) {
printf(", expired");
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;
}
printf("\n");
/*
* "advertising router" list is meaningful only if the prefix
* information is from RA.
*/
if (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,
NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
printf(" %s", host_buf);
printf(" %s\n", 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
} else
printf(" No advertising router\n");
}
#undef PR
@ -963,6 +1113,8 @@ rtr_flush()
strcpy(dummyif, "lo0"); /* dummy */
if (ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0)
err(1, "ioctl(SIOCSRTRFLUSH_IN6)");
close(s);
}
void
@ -971,17 +1123,70 @@ harmonize_rtr()
char dummyif[IFNAMSIZ+8];
int s;
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
perror("ndp: socket");
exit(1);
}
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
err(1, "socket");
strcpy(dummyif, "lo0"); /* dummy */
if (ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0) {
perror("ioctl (SIOCSNDFLUSH_IN6)");
exit(1);
}
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");
strcpy(ndifreq.ifname, "lo0"); /* 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));
strcpy(ndifreq.ifname, "lo0"); /* 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;