#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>
#ifndef NI_WITHSCOPEID
#define NI_WITHSCOPEID 0
#endif
static int pid;
static int cflag;
static int nflag;
static int tflag;
static int32_t thiszone;
static int s = -1;
static int repeat = 0;
char ntop_buf[INET6_ADDRSTRLEN];
char host_buf[NI_MAXHOST];
char ifix_buf[IFNAMSIZ];
int file(char *);
void getsocket(void);
int set(int, char **);
void get(char *);
int delete(char *);
void dump(struct in6_addr *);
static struct in6_nbrinfo *getnbrinfo(struct in6_addr *addr,
int ifindex, int);
static char *ether_str(struct sockaddr_dl *);
int ndp_ether_aton(char *, u_char *);
void usage(void) __dead2;
int rtmsg(int);
void ifinfo(int, char **);
void rtrlist(void);
void plist(void);
void pfx_flush(void);
void rtrlist(void);
void rtr_flush(void);
void harmonize_rtr(void);
#ifdef SIOCSDEFIFACE_IN6
static void getdefif(void);
static void setdefif(char *);
#endif
static char *sec2str(time_t t);
static char *ether_str(struct sockaddr_dl *sdl);
static void ts_print(const struct timespec *);
static char *rtpref_str[] = {
"medium",
"high",
"rsv",
"low"
};
static int32_t
gmt2local(time_t t)
{
register int dt, dir;
register struct tm *gmt, *loc;
struct tm sgmt;
if (t == 0)
t = time(NULL);
gmt = &sgmt;
*gmt = *gmtime(&t);
loc = localtime(&t);
dt = (loc->tm_hour - gmt->tm_hour) * 60 * 60 +
(loc->tm_min - gmt->tm_min) * 60;
dir = loc->tm_year - gmt->tm_year;
if (dir == 0)
dir = loc->tm_yday - gmt->tm_yday;
dt += dir * 24 * 60 * 60;
return (dt);
}
int
main(int argc, char **argv)
{
int ch;
int aflag = 0, dflag = 0, sflag = 0, Hflag = 0,
pflag = 0, rflag = 0, Pflag = 0, Rflag = 0;
pid = getpid();
thiszone = gmt2local(0);
while ((ch = getopt(argc, argv, "acndfIilprstA:HPR")) != -1)
switch ((char)ch) {
case 'a':
aflag = 1;
break;
case 'c':
cflag = 1;
break;
case 'd':
dflag = 1;
break;
case 'I':
#ifdef SIOCSDEFIFACE_IN6
if (argc > 2)
setdefif(argv[2]);
getdefif();
exit(0);
#else
errx(1, "not supported yet");
#endif
case 'i' :
argc -= optind;
argv += optind;
if (argc < 1)
usage();
ifinfo(argc, argv);
exit(0);
case 'n':
nflag = 1;
continue;
case 'p':
pflag = 1;
break;
case 'f' :
if (argc != 3)
usage();
file(argv[2]);
exit(0);
case 'l' :
break;
case 'r' :
rflag = 1;
break;
case 's':
sflag = 1;
break;
case 't':
tflag = 1;
break;
case 'A':
aflag = 1;
repeat = atoi(optarg);
if (repeat < 0)
usage();
break;
case 'H' :
Hflag = 1;
break;
case 'P':
Pflag = 1;
break;
case 'R':
Rflag = 1;
break;
default:
usage();
}
argc -= optind;
argv += optind;
if (aflag || cflag) {
dump(0);
exit(0);
}
if (dflag) {
if (argc != 1)
usage();
delete(argv[0]);
exit(0);
}
if (pflag) {
plist();
exit(0);
}
if (rflag) {
rtrlist();
exit(0);
}
if (sflag) {
if (argc < 2 || argc > 4)
usage();
exit(set(argc, argv) ? 1 : 0);
}
if (Hflag) {
harmonize_rtr();
exit(0);
}
if (Pflag) {
pfx_flush();
exit(0);
}
if (Rflag) {
rtr_flush();
exit(0);
}
if (argc != 1)
usage();
get(argv[0]);
exit(0);
}
int
file(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, 100, fp) != NULL) {
i = sscanf(line, "%s %s %s %s %s", 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(void)
{
if (s < 0) {
s = socket(PF_ROUTE, SOCK_RAW, 0);
if (s < 0) {
perror("ndp: socket");
exit(1);
}
}
}
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 flags, found_entry;
time_t expire_time;
struct {
struct rt_msghdr m_rtm;
char m_space[512];
} m_rtmsg;
int
set(int argc, char **argv)
{
struct sockaddr_in6 *sin = &sin_m;
struct sockaddr_dl *sdl;
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 = 0;
expire_time = 0;
while (argc-- > 0) {
if (strncmp(argv[0], "temp", 4) == 0) {
struct timespec sp;
clock_gettime(CLOCK_MONOTONIC, &sp);
expire_time = sp.tv_sec + 20 * 60;
} else if (strncmp(argv[0], "proxy", 5) == 0)
flags |= RTF_ANNOUNCE;
argv++;
}
if (rtmsg(RTM_GET) < 0) {
perror(host);
return (1);
}
sin = (struct sockaddr_in6 *)(rtm + 1);
sdl = (struct sockaddr_dl *)(RT_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_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;
}
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));
}
void
get(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);
if (found_entry == 0) {
getnameinfo((struct sockaddr *)sin, sin->sin6_len, host_buf,
sizeof(host_buf), NULL ,0,
NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
printf("%s (%s) -- no entry\n", host, host_buf);
exit(1);
}
}
int
delete(char *host)
{
struct sockaddr_in6 *sin = &sin_m;
struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
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) {
perror(host);
return (1);
}
sin = (struct sockaddr_in6 *)(rtm + 1);
sdl = (struct sockaddr_dl *)(RT_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_LLINFO) &&
!(rtm->rtm_flags & RTF_GATEWAY)) {
goto delete;
}
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);
}
if (rtmsg(RTM_DELETE) == 0) {
struct sockaddr_in6 s6 = *sin;
#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);
}
return 0;
}
#define W_ADDR 31
#define W_LL 17
#define W_IF 6
void
dump(struct in6_addr *addr)
{
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 timespec sp;
int addrwidth;
int llwidth;
int ifwidth;
char flgbuf[8];
char *ifname;
if (!tflag && !cflag)
printf("%-*.*s %-*.*s %*.*s %-9.9s %2s %4s %4s\n",
W_ADDR, W_ADDR, "Neighbor", W_LL, W_LL, "Linklayer Address",
W_IF, W_IF, "Netif", "Expire", "St", "Flgs", "Prbs");
again:;
mib[0] = CTL_NET;
mib[1] = PF_ROUTE;
mib[2] = 0;
mib[3] = AF_INET6;
mib[4] = NET_RT_FLAGS;
mib[5] = RTF_LLINFO;
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
err(1, "sysctl(PF_ROUTE estimate)");
if (needed > 0) {
if ((buf = malloc(needed)) == NULL)
errx(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 +
RT_ROUNDUP(sin->sin6_len));
if (sdl->sdl_family != AF_LINK)
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)) {
if (sin->sin6_scope_id == 0)
sin->sin6_scope_id = sdl->sdl_index;
#ifdef __KAME__
*(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,
NI_WITHSCOPEID | (nflag ? NI_NUMERICHOST : 0));
if (cflag == 1) {
#ifdef RTF_WASCLONED
if (rtm->rtm_flags & RTF_WASCLONED)
delete(host_buf);
#else
delete(host_buf);
#endif
continue;
}
clock_gettime(CLOCK_MONOTONIC, &sp);
if (tflag)
ts_print(&sp);
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);
nbi = getnbrinfo(&sin->sin6_addr, sdl->sdl_index, 1);
if (nbi) {
if (nbi->expire > sp.tv_sec) {
printf(" %-9.9s",
sec2str(nbi->expire - sp.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(" ");
}
putchar(' ');
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);
if (prbs)
printf(" %4d", prbs);
printf("\n");
}
if (buf != NULL)
free(buf);
if (repeat) {
printf("\n");
sleep(repeat);
goto again;
}
}
static struct in6_nbrinfo *
getnbrinfo(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(struct sockaddr_dl *sdl)
{
static char ebuf[32];
u_char *cp;
if (sdl->sdl_alen) {
cp = (u_char *)LLADDR(sdl);
sprintf(ebuf, "%x:%x:%x:%x:%x:%x",
cp[0], cp[1], cp[2], cp[3], cp[4], cp[5]);
} else {
sprintf(ebuf, "(incomplete)");
}
return(ebuf);
}
int
ndp_ether_aton(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(void)
{
printf("usage: ndp hostname\n");
printf(" ndp -a[nt]\n");
printf(" ndp [-nt] -A wait\n");
printf(" ndp -c[nt]\n");
printf(" ndp -d[nt] hostname\n");
printf(" ndp -f[nt] filename\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] [proxy]\n");
printf(" ndp -H\n");
printf(" ndp -P\n");
printf(" ndp -R\n");
exit(1);
}
int
rtmsg(int cmd)
{
static int seq;
int rlen;
struct rt_msghdr *rtm = &m_rtmsg.m_rtm;
char *cp = m_rtmsg.m_space;
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;
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;
}
case RTM_GET:
rtm->rtm_addrs |= RTA_DST;
}
#define NEXTADDR(w, s) \
if (rtm->rtm_addrs & (w)) { \
bcopy((char *)&s, cp, sizeof(s)); cp += RT_ROUNDUP(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;
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) {
perror("writing to routing socket");
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)
fprintf(stderr, "ndp: read from routing socket: %s\n",
strerror(errno));
return (0);
}
void
ifinfo(int argc, char **argv)
{
struct in6_ndireq nd;
int i, s;
char *ifname = argv[0];
u_int32_t newflags;
#ifdef IPV6CTL_USETEMPADDR
u_int8_t nullbuf[8];
#endif
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
perror("ndp: socket");
exit(1);
}
bzero(&nd, sizeof(nd));
strcpy(nd.ifname, ifname);
if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd) < 0) {
perror("ioctl (SIOCGIFINFO_IN6)");
exit(1);
}
#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);
#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
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", 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;
}
for (j = 0; j < 8; j++)
printf("%02x", rbuf[j]);
}
}
#endif
if (ND.flags) {
printf("\nFlags: ");
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
}
putc('\n', stdout);
#undef ND
close(s);
}
#ifndef ND_RA_FLAG_RTPREF_MASK
#define ND_RA_FLAG_RTPREF_MASK 0x18
#endif
void
rtrlist(void)
{
#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, NELEM(mib), NULL, &l, NULL, 0) < 0) {
err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
}
buf = malloc(l);
if (!buf) {
errx(1, "not enough core");
}
if (sysctl(mib, NELEM(mib), buf, &l, NULL, 0) < 0) {
err(1, "sysctl(ICMPV6CTL_ND6_DRLIST)");
}
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,
NI_WITHSCOPEID | (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) {
perror("ndp: socket");
exit(1);
}
bzero(&dr, sizeof(dr));
strcpy(dr.ifname, "lo0");
if (ioctl(s, SIOCGDRLST_IN6, (caddr_t)&dr) < 0) {
perror("ioctl (SIOCGDRLST_IN6)");
exit(1);
}
#define DR dr.defrouter[i]
for (i = 0 ; i < DRLSTSIZ && DR.if_index ; 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,
NI_WITHSCOPEID | (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(void)
{
#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;
#ifdef NI_WITHSCOPEID
const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID;
int ninflags = (nflag ? NI_NUMERICHOST : 0) | NI_WITHSCOPEID;
#else
const int niflags = NI_NUMERICHOST;
int ninflags = nflag ? NI_NUMERICHOST : 0;
#endif
char namebuf[NI_MAXHOST];
if (sysctl(mib, NELEM(mib), NULL, &l, NULL, 0) < 0) {
err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
}
buf = malloc(l);
if (!buf) {
errx(1, "not enough core");
}
if (sysctl(mib, NELEM(mib), buf, &l, NULL, 0) < 0) {
err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
}
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);
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=%ld", (long)p->vltime);
if (p->pltime == ND6_INFINITE_LIFETIME)
printf(", pltime=infinity");
else
printf(", pltime=%ld", (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");
if (p->advrtrs) {
int j;
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)(p + 1);
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) {
perror("ndp: socket");
exit(1);
}
bzero(&pr, sizeof(pr));
strcpy(pr.ifname, "lo0");
if (ioctl(s, SIOCGPRLST_IN6, (caddr_t)&pr) < 0) {
perror("ioctl (SIOCGPRLST_IN6)");
exit(1);
}
#define PR pr.prefix[i]
for (i = 0; i < PRLSTSIZ && PR.if_index ; 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
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;
#ifdef __KAME__
niflags |= NI_WITHSCOPEID;
#endif
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);
#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=%ld", (long)PR.vltime);
if (PR.pltime == ND6_INFINITE_LIFETIME)
printf(", pltime=infinity");
else
printf(", pltime=%ld", (long)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");
if (0 &&
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;
getnameinfo((struct sockaddr *)&sin6,
sin6.sin6_len, host_buf,
sizeof(host_buf), NULL, 0,
NI_WITHSCOPEID | (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(void)
{
char dummyif[IFNAMSIZ+8];
int s;
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
err(1, "socket");
strcpy(dummyif, "lo0");
if (ioctl(s, SIOCSPFXFLUSH_IN6, (caddr_t)&dummyif) < 0)
err(1, "ioctl(SIOCSPFXFLUSH_IN6)");
}
void
rtr_flush(void)
{
char dummyif[IFNAMSIZ+8];
int s;
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
err(1, "socket");
strcpy(dummyif, "lo0");
if (ioctl(s, SIOCSRTRFLUSH_IN6, (caddr_t)&dummyif) < 0)
err(1, "ioctl(SIOCSRTRFLUSH_IN6)");
close(s);
}
void
harmonize_rtr(void)
{
char dummyif[IFNAMSIZ+8];
int s;
if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
err(1, "socket");
strcpy(dummyif, "lo0");
if (ioctl(s, SIOCSNDFLUSH_IN6, (caddr_t)&dummyif) < 0)
err(1, "ioctl (SIOCSNDFLUSH_IN6)");
close(s);
}
#ifdef SIOCSDEFIFACE_IN6
static void
setdefif(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");
ndifreq.ifindex = ifindex;
if (ioctl(s, SIOCSDEFIFACE_IN6, (caddr_t)&ndifreq) < 0)
err(1, "ioctl (SIOCSDEFIFACE_IN6)");
close(s);
}
static void
getdefif(void)
{
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");
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(time_t total)
{
static char result[256];
int days, hours, mins, secs;
int first = 1;
char *p = result;
days = total / 3600 / 24;
hours = (total / 3600) % 24;
mins = (total / 60) % 60;
secs = total % 60;
if (days) {
first = 0;
p += sprintf(p, "%dd", days);
}
if (!first || hours) {
first = 0;
p += sprintf(p, "%dh", hours);
}
if (!first || mins) {
first = 0;
p += sprintf(p, "%dm", mins);
}
sprintf(p, "%ds", secs);
return(result);
}
static void
ts_print(const struct timespec *sp)
{
int s;
s = (sp->tv_sec + thiszone) % 86400;
printf("%02d:%02d:%02d.%06u ",
s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)(sp->tv_nsec / 1000));
}
