2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 static char sccsid[] = "From: @(#)route.c 8.6 (Berkeley) 4/28/95";
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
39 #include <sys/param.h>
40 #include <sys/protosw.h>
41 #include <sys/socket.h>
42 #include <sys/socketvar.h>
45 #include <net/ethernet.h>
47 #include <net/if_var.h>
48 #include <net/if_dl.h>
49 #include <net/if_types.h>
50 #include <net/radix.h>
52 #include <net/route.h>
54 #include <netinet/in.h>
55 #include <netgraph/ng_socket.h>
57 #include <sys/sysctl.h>
59 #include <arpa/inet.h>
75 #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d)))
78 * Definitions for showing gateway flags.
85 { RTF_UP, 'U', "up" },
86 { RTF_GATEWAY, 'G', "gateway" },
87 { RTF_HOST, 'H', "host" },
88 { RTF_REJECT, 'R', "reject" },
89 { RTF_DYNAMIC, 'D', "dynamic" },
90 { RTF_MODIFIED, 'M', "modified" },
91 { RTF_DONE, 'd', "done" }, /* Completed -- for routing msgs only */
92 { RTF_XRESOLVE, 'X', "xresolve" },
93 { RTF_STATIC, 'S', "static" },
94 { RTF_PROTO1, '1', "proto1" },
95 { RTF_PROTO2, '2', "proto2" },
96 { RTF_PROTO3, '3', "proto3" },
97 { RTF_BLACKHOLE,'B', "blackhole" },
98 { RTF_BROADCAST,'b', "broadcast" },
100 { RTF_LLINFO, 'L', "llinfo" },
106 * kvm(3) bindings for every needed symbol
108 static struct nlist rl[] = {
110 { .n_name = "_rtstat" },
112 { .n_name = "_rt_tables"},
114 { .n_name = "_rttrash" },
119 long dummy; /* Helps align structure. */
120 struct sockaddr u_sa;
127 char ifname[IFNAMSIZ];
130 static struct ifmap_entry *ifmap;
131 static int ifmap_size;
134 struct rtentry rtentry;
135 struct radix_node rnode;
136 struct radix_mask rmask;
140 struct timespec uptime;
142 static struct sockaddr *kgetsa(struct sockaddr *);
143 static void size_cols(int ef, struct radix_node *rn);
144 static void size_cols_tree(struct radix_node *rn);
145 static void size_cols_rtentry(struct rtentry *rt);
146 static void p_rtnode_kvm(void);
147 static void p_rtable_sysctl(int, int);
148 static void p_rtable_kvm(int, int );
149 static void p_rtree_kvm(const char *name, struct radix_node *);
150 static void p_rtentry_kvm(const char *name, struct rtentry *);
151 static void p_rtentry_sysctl(const char *name, struct rt_msghdr *);
152 static void p_sockaddr(const char *name, struct sockaddr *, struct sockaddr *,
154 static const char *fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask,
156 static void p_flags(int, const char *);
157 static const char *fmt_flags(int f);
158 static void domask(char *, in_addr_t, u_long);
161 * Print routing tables.
164 routepr(int fibnum, int af)
169 intsize = sizeof(int);
171 sysctlbyname("net.my_fibnum", &fibnum, &intsize, NULL, 0) == -1)
173 if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1)
175 if (fibnum < 0 || fibnum > numfibs - 1)
176 errx(EX_USAGE, "%d: invalid fib", fibnum);
178 * Since kernel & userland use different timebase
179 * (time_uptime vs time_second) and we are reading kernel memory
180 * directly we should do rt_expire --> expire_time conversion.
182 if (clock_gettime(CLOCK_UPTIME, &uptime) < 0)
183 err(EX_OSERR, "clock_gettime() failed");
185 xo_open_container("route-information");
186 xo_emit("{T:Routing tables}");
188 xo_emit(" ({L:fib}: {:fib/%d})", fibnum);
191 if (Aflag == 0 && live != 0 && NewTree)
192 p_rtable_sysctl(fibnum, af);
194 p_rtable_kvm(fibnum, af);
195 xo_close_container("route-information");
200 * Print address family header before a section of the routing table.
213 afname = "Internet6";
230 xo_emit("\n{k:address-family/%s}:\n", afname);
232 xo_emit("\n{L:Protocol Family} {k:address-family/%d}:\n", af1);
235 /* column widths; each followed by one space */
237 #define WID_DST_DEFAULT(af) 18 /* width of destination column */
238 #define WID_GW_DEFAULT(af) 18 /* width of gateway column */
239 #define WID_IF_DEFAULT(af) (Wflag ? 10 : 8) /* width of netif column */
241 #define WID_DST_DEFAULT(af) \
242 ((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18)
243 #define WID_GW_DEFAULT(af) \
244 ((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18)
245 #define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 10 : 8))
250 static int wid_flags;
251 static int wid_pksent;
254 static int wid_expire;
257 size_cols(int ef, struct radix_node *rn)
259 wid_dst = WID_DST_DEFAULT(ef);
260 wid_gw = WID_GW_DEFAULT(ef);
264 wid_if = WID_IF_DEFAULT(ef);
267 if (Wflag && rn != NULL)
272 size_cols_tree(struct radix_node *rn)
275 if (kget(rn, rnode) != 0)
277 if (!(rnode.rn_flags & RNF_ACTIVE))
279 if (rnode.rn_bit < 0) {
280 if ((rnode.rn_flags & RNF_ROOT) == 0) {
281 if (kget(rn, rtentry) != 0)
283 size_cols_rtentry(&rtentry);
285 if ((rn = rnode.rn_dupedkey))
289 size_cols_tree(rnode.rn_left);
295 size_cols_rtentry(struct rtentry *rt)
297 static struct ifnet ifnet, *lastif;
298 static char buffer[100];
304 bzero(&addr, sizeof(addr));
305 if ((sa = kgetsa(rt_key(rt))))
306 bcopy(sa, &addr, sa->sa_len);
307 bzero(&mask, sizeof(mask));
308 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt))))
309 bcopy(sa, &mask, sa->sa_len);
310 bp = fmt_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags);
312 wid_dst = MAX(len, wid_dst);
314 bp = fmt_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST);
316 wid_gw = MAX(len, wid_gw);
318 bp = fmt_flags(rt->rt_flags);
320 wid_flags = MAX(len, wid_flags);
323 len = snprintf(buffer, sizeof(buffer), "%ju",
324 (uintmax_t )kread_counter((u_long )rt->rt_pksent));
325 wid_pksent = MAX(len, wid_pksent);
328 if (rt->rt_ifp != lastif) {
329 if (kget(rt->rt_ifp, ifnet) == 0)
330 len = strlen(ifnet.if_xname);
334 wid_if = MAX(len, wid_if);
340 rt->rt_expire - uptime.tv_sec) > 0) {
341 len = snprintf(buffer, sizeof(buffer), "%d",
343 wid_expire = MAX(len, wid_expire);
351 * Print header for routing table columns.
358 xo_emit("{T:/%-8.8s} ","Address");
360 xo_emit("{T:/%-*.*s} {T:/%-*.*s} {T:/%-*.*s} {T:/%*.*s} "
361 "{T:/%*.*s} {T:/%*.*s} {T:/%*.*s} {T:/%*s}\n",
362 wid_dst, wid_dst, "Destination",
363 wid_gw, wid_gw, "Gateway",
364 wid_flags, wid_flags, "Flags",
365 wid_pksent, wid_pksent, "Use",
366 wid_mtu, wid_mtu, "Mtu",
367 wid_if, wid_if, "Netif",
368 wid_expire, "Expire");
370 xo_emit("{T:/%-*.*s} {T:/%-*.*s} {T:/%-*.*s} {T:/%*.*s} "
372 wid_dst, wid_dst, "Destination",
373 wid_gw, wid_gw, "Gateway",
374 wid_flags, wid_flags, "Flags",
375 wid_if, wid_if, "Netif",
376 wid_expire, "Expire");
380 static struct sockaddr *
381 kgetsa(struct sockaddr *dst)
384 if (kget(dst, pt_u.u_sa) != 0)
386 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
387 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len);
392 * Print kernel routing tables for given fib
393 * using debugging kvm(3) interface.
396 p_rtable_kvm(int fibnum, int af)
398 struct radix_node_head **rnhp, *rnh, head;
399 struct radix_node_head **rt_tables;
402 bool did_rt_family = false;
405 if ((rtree = rl[N_RTREE].n_value) == 0) {
406 xo_emit("rt_tables: symbol not in namelist\n");
410 af_size = (AF_MAX + 1) * sizeof(struct radix_node_head *);
411 rt_tables = calloc(1, af_size);
412 if (rt_tables == NULL)
413 err(EX_OSERR, "memory allocation failed");
415 if (kread((u_long)(rtree), (char *)(rt_tables) + fibnum * af_size,
417 err(EX_OSERR, "error retrieving radix pointers");
418 xo_open_container("route-table");
419 for (fam = 0; fam <= AF_MAX; fam++) {
430 rnhp = (struct radix_node_head **)*rt_tables;
431 /* Calculate the in-kernel address. */
432 rnhp += tmpfib * (AF_MAX + 1) + fam;
433 /* Read the in kernel rhn pointer. */
434 if (kget(rnhp, rnh) != 0)
438 /* Read the rnh data. */
439 if (kget(rnh, head) != 0)
441 if (fam == AF_UNSPEC) {
442 if (Aflag && af == 0) {
443 xo_emit("{T:Netmasks}:\n");
444 xo_open_list("netmasks");
445 p_rtree_kvm("netmasks", head.rnh_treetop);
446 xo_close_list("netmasks");
448 } else if (af == AF_UNSPEC || af == fam) {
449 if (!did_rt_family) {
450 xo_open_list("rt-family");
451 did_rt_family = true;
453 size_cols(fam, head.rnh_treetop);
454 xo_open_instance("rt-family");
457 xo_open_list("rt-entry");
459 p_rtree_kvm("rt-entry", head.rnh_treetop);
460 xo_close_list("rt-entry");
461 xo_close_instance("rt-family");
465 xo_close_list("rt-family");
466 xo_close_container("route-table");
472 * Print given kernel radix tree using
473 * debugging kvm(3) interface.
476 p_rtree_kvm(const char *name, struct radix_node *rn)
482 #define DOOPEN() do { \
483 if (!opened) { xo_open_instance(name); opened = true; } \
485 #define DOCLOSE() do { \
486 if (opened) { opened = false; xo_close_instance(name); } \
490 if (kget(rn, rnode) != 0)
492 if (!(rnode.rn_flags & RNF_ACTIVE))
494 if (rnode.rn_bit < 0) {
497 xo_emit("{q:radix-node/%-8.8lx} ", (u_long)rn);
499 if (rnode.rn_flags & RNF_ROOT) {
502 xo_emit("({:root/root} node){L:/%s}",
503 rnode.rn_dupedkey ? " =>\n" : "\n");
505 } else if (do_rtent) {
506 if (kget(rn, rtentry) == 0) {
508 p_rtentry_kvm(name, &rtentry);
517 p_sockaddr("address",
518 kgetsa((struct sockaddr *)rnode.rn_key),
523 if ((rn = rnode.rn_dupedkey))
526 if (Aflag && do_rtent) {
528 xo_emit("{q:radix-node/%-8.8lx} ", (u_long)rn);
533 p_rtree_kvm(name, rnode.rn_left);
534 p_rtree_kvm(name, rn);
543 struct radix_mask *rm = rnode.rn_mklist;
545 if (rnode.rn_bit < 0) {
547 xo_emit("\t {L:mask} ");
548 p_sockaddr("netmask",
549 kgetsa((struct sockaddr *)rnode.rn_mask),
554 xo_emit("{[:6}{:bit/(%d)}{]:} {q:left-node/%8.8lx} "
555 ": {q:right-node/%8.8lx}", rnode.rn_bit,
556 (u_long)rnode.rn_left, (u_long)rnode.rn_right);
559 if (kget(rm, rmask) != 0)
561 sprintf(nbuf, " %d refs, ", rmask.rm_refs);
562 xo_emit(" mk = {q:node/%8.8lx} \\{({:bit/%d}),{nbufs/%s}",
563 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " ");
564 if (rmask.rm_flags & RNF_NORMAL) {
565 struct radix_node rnode_aux;
566 xo_emit(" <{:mode/normal}>, ");
567 if (kget(rmask.rm_leaf, rnode_aux) == 0)
568 p_sockaddr("netmask",
569 kgetsa(/*XXX*/(void *)rnode_aux.rn_mask),
572 p_sockaddr(NULL, NULL, NULL, 0, -1);
574 p_sockaddr("netmask",
575 kgetsa((struct sockaddr *)rmask.rm_mask),
578 if ((rm = rmask.rm_mklist))
585 p_rtable_sysctl(int fibnum, int af)
589 char *buf, *next, *lim;
590 struct rt_msghdr *rtm;
592 int fam = AF_UNSPEC, ifindex = 0, size;
593 int need_table_close = false;
595 struct ifaddrs *ifap, *ifa;
596 struct sockaddr_dl *sdl;
599 * Retrieve interface list at first
600 * since we need #ifindex -> if_xname match
602 if (getifaddrs(&ifap) != 0)
603 err(EX_OSERR, "getifaddrs");
605 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
607 if (ifa->ifa_addr->sa_family != AF_LINK)
610 sdl = (struct sockaddr_dl *)ifa->ifa_addr;
611 ifindex = sdl->sdl_index;
613 if (ifindex >= ifmap_size) {
614 size = roundup(ifindex + 1, 32) *
615 sizeof(struct ifmap_entry);
616 if ((ifmap = realloc(ifmap, size)) == NULL)
617 errx(2, "realloc(%d) failed", size);
618 memset(&ifmap[ifmap_size], 0,
620 sizeof(struct ifmap_entry));
622 ifmap_size = roundup(ifindex + 1, 32);
625 if (*ifmap[ifindex].ifname != '\0')
628 strlcpy(ifmap[ifindex].ifname, ifa->ifa_name, IFNAMSIZ);
637 mib[4] = NET_RT_DUMP;
640 if (sysctl(mib, nitems(mib), NULL, &needed, NULL, 0) < 0)
641 err(EX_OSERR, "sysctl: net.route.0.%d.dump.%d estimate", af,
643 if ((buf = malloc(needed)) == NULL)
644 errx(2, "malloc(%lu)", (unsigned long)needed);
645 if (sysctl(mib, nitems(mib), buf, &needed, NULL, 0) < 0)
646 err(1, "sysctl: net.route.0.%d.dump.%d", af, fibnum);
648 xo_open_container("route-table");
649 xo_open_list("rt-family");
650 for (next = buf; next < lim; next += rtm->rtm_msglen) {
651 rtm = (struct rt_msghdr *)next;
652 if (rtm->rtm_version != RTM_VERSION)
655 * Peek inside header to determine AF
657 sa = (struct sockaddr *)(rtm + 1);
658 /* Only print family first time. */
659 if (fam != sa->sa_family) {
660 if (need_table_close) {
661 xo_close_list("rt-entry");
662 xo_close_instance("rt-family");
664 need_table_close = true;
667 size_cols(fam, NULL);
668 xo_open_instance("rt-family");
670 xo_open_list("rt-entry");
674 p_rtentry_sysctl("rt-entry", rtm);
676 if (need_table_close) {
677 xo_close_list("rt-entry");
678 xo_close_instance("rt-family");
680 xo_close_list("rt-family");
681 xo_close_container("route-table");
686 p_rtentry_sysctl(const char *name, struct rt_msghdr *rtm)
688 struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
690 char prettyname[128];
694 xo_open_instance(name);
696 #define GETSA(_s, _f) { \
697 bzero(&(_s), sizeof(_s)); \
698 if (rtm->rtm_addrs & _f) { \
699 l = roundup(sa->sa_len, sizeof(long)); \
700 memcpy(&(_s), sa, (l > sizeof(_s)) ? sizeof(_s) : l); \
701 sa = (struct sockaddr *)((char *)sa + l); \
705 GETSA(addr, RTA_DST);
706 GETSA(gw, RTA_GATEWAY);
707 GETSA(mask, RTA_NETMASK);
709 p_sockaddr("destination", &addr.u_sa, &mask.u_sa, rtm->rtm_flags,
711 p_sockaddr("gateway", &gw.u_sa, NULL, RTF_HOST, wid_gw);
712 snprintf(buffer, sizeof(buffer), "{[:-%d}{:flags/%%s}{]:}",
714 p_flags(rtm->rtm_flags, buffer);
716 xo_emit("{t:use/%*lu} ", wid_pksent, rtm->rtm_rmx.rmx_pksent);
718 if (rtm->rtm_rmx.rmx_mtu != 0)
719 xo_emit("{t:mtu/%*lu} ", wid_mtu, rtm->rtm_rmx.rmx_mtu);
721 xo_emit("{P:/%*s} ", wid_mtu, "");
724 memset(prettyname, 0, sizeof(prettyname));
725 if (rtm->rtm_index < ifmap_size) {
726 strlcpy(prettyname, ifmap[rtm->rtm_index].ifname,
728 if (*prettyname == '\0')
729 strlcpy(prettyname, "---", sizeof(prettyname));
732 xo_emit("{t:interface-name/%*.*s}", wid_if, wid_if, prettyname);
733 if (rtm->rtm_rmx.rmx_expire) {
736 if ((expire_time = rtm->rtm_rmx.rmx_expire - uptime.tv_sec) > 0)
737 xo_emit(" {:expire-time/%*d}", wid_expire,
742 xo_close_instance(name);
746 p_sockaddr(const char *name, struct sockaddr *sa, struct sockaddr *mask,
747 int flags, int width)
752 cp = fmt_sockaddr(sa, mask, flags);
755 snprintf(buf, sizeof(buf), "{:%s/%%s} ", name);
759 snprintf(buf, sizeof(buf), "{[:%d}{:%s/%%s}{]:} ",
763 snprintf(buf, sizeof(buf), "{[:%d}{:%s/%%-.*s}{]:} ",
765 xo_emit(buf, width, cp);
771 fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags)
773 static char workbuf[128];
779 switch(sa->sa_family) {
782 struct sockaddr_in *sockin = (struct sockaddr_in *)sa;
784 if ((sockin->sin_addr.s_addr == INADDR_ANY) &&
786 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr)
789 else if (flags & RTF_HOST)
790 cp = routename(sockin->sin_addr.s_addr);
792 cp = netname(sockin->sin_addr.s_addr,
793 ((struct sockaddr_in *)mask)->sin_addr.s_addr);
795 cp = netname(sockin->sin_addr.s_addr, INADDR_ANY);
802 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
805 * The sa6->sin6_scope_id must be filled here because
806 * this sockaddr is extracted from kmem(4) directly
807 * and has KAME-specific embedded scope id in
808 * sa6->sin6_addr.s6_addr[2].
810 in6_fillscopeid(sa6);
812 if (flags & RTF_HOST)
813 cp = routename6(sa6);
816 &((struct sockaddr_in6 *)mask)->sin6_addr);
818 cp = netname6(sa6, NULL);
826 strlcpy(workbuf, ((struct sockaddr_ng *)sa)->sg_data,
834 struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
836 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
837 sdl->sdl_slen == 0) {
838 (void) sprintf(workbuf, "link#%d", sdl->sdl_index);
841 switch (sdl->sdl_type) {
846 if (sdl->sdl_alen == ETHER_ADDR_LEN) {
847 cp = ether_ntoa((struct ether_addr *)
848 (sdl->sdl_data + sdl->sdl_nlen));
861 u_char *s = (u_char *)sa->sa_data, *slim;
865 slim = sa->sa_len + (u_char *) sa;
866 cqlim = cq + sizeof(workbuf) - 6;
867 cq += sprintf(cq, "(%d)", sa->sa_family);
868 while (s < slim && cq < cqlim) {
869 cq += sprintf(cq, " %02x", *s++);
871 cq += sprintf(cq, "%02x", *s++);
881 p_flags(int f, const char *format)
885 xo_emit(format, fmt_flags(f));
887 xo_open_list("flags_pretty");
888 for (p = bits; p->b_mask; p++)
890 xo_emit("{le:flags_pretty/%s}", p->b_name);
891 xo_close_list("flags_pretty");
897 static char name[33];
899 struct bits *p = bits;
901 for (flags = name; p->b_mask; p++)
909 p_rtentry_kvm(const char *name, struct rtentry *rt)
911 static struct ifnet ifnet, *lastif;
912 static char buffer[128];
913 static char prettyname[128];
917 bzero(&addr, sizeof(addr));
918 if ((sa = kgetsa(rt_key(rt))))
919 bcopy(sa, &addr, sa->sa_len);
920 bzero(&mask, sizeof(mask));
921 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt))))
922 bcopy(sa, &mask, sa->sa_len);
924 p_sockaddr("destination", &addr.u_sa, &mask.u_sa, rt->rt_flags,
926 p_sockaddr("gateway", kgetsa(rt->rt_gateway), NULL, RTF_HOST, wid_gw);
927 snprintf(buffer, sizeof(buffer), "{[:-%d}{:flags/%%s}{]:}",
929 p_flags(rt->rt_flags, buffer);
931 xo_emit("{[:%d}{t:use/%ju}{]:} ", -wid_pksent,
932 (uintmax_t )kread_counter((u_long )rt->rt_pksent));
935 xo_emit("{t:mtu/%*lu} ", wid_mtu, rt->rt_mtu);
937 xo_emit("{P:/%*s} ", wid_mtu, "");
940 if (rt->rt_ifp != lastif) {
941 if (kget(rt->rt_ifp, ifnet) == 0)
942 strlcpy(prettyname, ifnet.if_xname,
945 strlcpy(prettyname, "---", sizeof(prettyname));
948 xo_emit("{t:interface-name/%*.*s}", wid_if, wid_if, prettyname);
953 rt->rt_expire - uptime.tv_sec) > 0)
954 xo_emit(" {:expire-time/%*d}",
955 wid_expire, (int)expire_time);
957 if (rt->rt_nodes[0].rn_dupedkey)
964 routename(in_addr_t in)
967 static char line[MAXHOSTNAMELEN];
972 hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET);
975 trimdomain(cp, strlen(cp));
979 strlcpy(line, cp, sizeof(line));
981 #define C(x) ((x) & 0xff)
983 sprintf(line, "%u.%u.%u.%u",
984 C(in >> 24), C(in >> 16), C(in >> 8), C(in));
989 #define NSHIFT(m) ( \
990 (m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \
991 (m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \
992 (m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \
996 domask(char *dst, in_addr_t addr __unused, u_long mask)
1000 if (mask == 0 || (!numeric_addr && NSHIFT(mask) != 0)) {
1005 for (b = 0; b < 32; b++)
1006 if (mask & (1 << b)) {
1010 for (bb = b+1; bb < 32; bb++)
1011 if (!(mask & (1 << bb))) {
1012 i = -1; /* noncontig */
1018 sprintf(dst, "&0x%lx", mask);
1020 sprintf(dst, "/%d", 32-i);
1024 * Return the name of the network whose address is given.
1027 netname(in_addr_t in, in_addr_t mask)
1030 static char line[MAXHOSTNAMELEN];
1031 struct netent *np = 0;
1034 /* It is ok to supply host address. */
1038 if (!numeric_addr && i) {
1039 np = getnetbyaddr(i >> NSHIFT(ntohl(mask)), AF_INET);
1042 trimdomain(cp, strlen(cp));
1046 strlcpy(line, cp, sizeof(line));
1048 inet_ntop(AF_INET, &in, line, sizeof(line) - 1);
1050 domask(line + strlen(line), i, ntohl(mask));
1058 in6_fillscopeid(struct sockaddr_in6 *sa6)
1060 #if defined(__KAME__)
1062 * XXX: This is a special workaround for KAME kernels.
1063 * sin6_scope_id field of SA should be set in the future.
1065 if (IN6_IS_ADDR_LINKLOCAL(&sa6->sin6_addr) ||
1066 IN6_IS_ADDR_MC_NODELOCAL(&sa6->sin6_addr) ||
1067 IN6_IS_ADDR_MC_LINKLOCAL(&sa6->sin6_addr)) {
1068 if (sa6->sin6_scope_id == 0)
1069 sa6->sin6_scope_id =
1070 ntohs(*(u_int16_t *)&sa6->sin6_addr.s6_addr[2]);
1071 sa6->sin6_addr.s6_addr[2] = sa6->sin6_addr.s6_addr[3] = 0;
1077 netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask)
1079 static char line[MAXHOSTNAMELEN];
1080 u_char *p = (u_char *)mask;
1082 int masklen, illegal = 0, flag = 0;
1085 for (masklen = 0, lim = p + 16; p < lim; p++) {
1119 xo_error("illegal prefixlen\n");
1124 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr))
1128 flag |= NI_NUMERICHOST;
1129 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line),
1133 sprintf(&line[strlen(line)], "/%d", masklen);
1139 routename6(struct sockaddr_in6 *sa6)
1141 static char line[MAXHOSTNAMELEN];
1143 /* use local variable for safety */
1144 struct sockaddr_in6 sa6_local;
1146 sa6_local.sin6_family = AF_INET6;
1147 sa6_local.sin6_len = sizeof(sa6_local);
1148 sa6_local.sin6_addr = sa6->sin6_addr;
1149 sa6_local.sin6_scope_id = sa6->sin6_scope_id;
1152 flag |= NI_NUMERICHOST;
1154 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len,
1155 line, sizeof(line), NULL, 0, flag);
1162 * Print routing statistics
1167 struct rtstat rtstat;
1168 u_long rtsaddr, rttaddr;
1173 if ((rtsaddr = rl[N_RTSTAT].n_value) == 0) {
1174 xo_emit("{W:rtstat: symbol not in namelist}\n");
1177 if ((rttaddr = rl[N_RTTRASH].n_value) == 0) {
1178 xo_emit("{W:rttrash: symbol not in namelist}\n");
1181 kread(rtsaddr, (char *)&rtstat, sizeof (rtstat));
1182 kread(rttaddr, (char *)&rttrash, sizeof (rttrash));
1183 xo_emit("{T:routing}:\n");
1185 #define p(f, m) if (rtstat.f || sflag <= 1) \
1186 xo_emit(m, rtstat.f, plural(rtstat.f))
1188 p(rts_badredirect, "\t{:bad-redirects/%hu} "
1189 "{N:/bad routing redirect%s}\n");
1190 p(rts_dynamic, "\t{:dynamically-created/%hu} "
1191 "{N:/dynamically created route%s}\n");
1192 p(rts_newgateway, "\t{:new-gateways/%hu} "
1193 "{N:/new gateway%s due to redirects}\n");
1194 p(rts_unreach, "\t{:unreachable-destination/%hu} "
1195 "{N:/destination%s found unreachable}\n");
1196 p(rts_wildcard, "\t{:wildcard-uses/%hu} "
1197 "{N:/use%s of a wildcard route}\n");
1200 if (rttrash || sflag <= 1)
1201 xo_emit("\t{:unused-but-not-freed/%u} "
1202 "{N:/route%s not in table but not freed}\n",
1203 rttrash, plural(rttrash));