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freebsd-dev/usr.bin/netstat/route.c
Ruslan Ermilov 089cdfad78 net/route.c: 
A route generated from an RTF_CLONING route had the RTF_WASCLONED flag
  set but did not have a reference to the parent route, as documented in
  the rtentry(9) manpage.  This prevented such routes from being deleted
  when their parent route is deleted.

  Now, for example, if you delete an IP address from a network interface,
  all ARP entries that were cloned from this interface route are flushed.

  This also has an impact on netstat(1) output.  Previously, dynamically
  created ARP cache entries (RTF_STATIC flag is unset) were displayed as
  part of the routing table display (-r).  Now, they are only printed if
  the -a option is given.

netinet/in.c, netinet/in_rmx.c:

  When address is removed from an interface, also delete all routes that
  point to this interface and address.  Previously, for example, if you
  changed the address on an interface, outgoing IP datagrams might still
  use the old address.  The only solution was to delete and re-add some
  routes.  (The problem is easily observed with the route(8) command.)

  Note, that if the socket was already bound to the local address before
  this address is removed, new datagrams generated from this socket will
  still be sent from the old address.

PR:		kern/20785, kern/21914
Reviewed by:	wollman (the idea)
2001-03-15 14:52:12 +00:00

1046 lines
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/*
* Copyright (c) 1983, 1988, 1993
* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 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.
*/
#ifndef lint
#if 0
static char sccsid[] = "From: @(#)route.c 8.6 (Berkeley) 4/28/95";
#endif
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <sys/param.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/time.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 <netipx/ipx.h>
#include <netatalk/at.h>
#include <netgraph/ng_socket.h>
#ifdef NS
#include <netns/ns.h>
#endif
#include <sys/sysctl.h>
#include <arpa/inet.h>
#include <libutil.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <err.h>
#include <time.h>
#include "netstat.h"
#define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d)))
/* alignment constraint 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))
/*
* Definitions for showing gateway flags.
*/
struct bits {
u_long b_mask;
char b_val;
} bits[] = {
{ RTF_UP, 'U' },
{ RTF_GATEWAY, 'G' },
{ RTF_HOST, 'H' },
{ RTF_REJECT, 'R' },
{ RTF_DYNAMIC, 'D' },
{ RTF_MODIFIED, 'M' },
{ RTF_DONE, 'd' }, /* Completed -- for routing messages only */
{ RTF_CLONING, 'C' },
{ RTF_XRESOLVE, 'X' },
{ RTF_LLINFO, 'L' },
{ RTF_STATIC, 'S' },
{ RTF_PROTO1, '1' },
{ RTF_PROTO2, '2' },
{ RTF_WASCLONED,'W' },
{ RTF_PRCLONING,'c' },
{ RTF_PROTO3, '3' },
{ RTF_BLACKHOLE,'B' },
{ RTF_BROADCAST,'b' },
{ 0 }
};
typedef union {
long dummy; /* Helps align structure. */
struct sockaddr u_sa;
u_short u_data[128];
} sa_u;
static sa_u pt_u;
int do_rtent = 0;
struct rtentry rtentry;
struct radix_node rnode;
struct radix_mask rmask;
struct radix_node_head *rt_tables[AF_MAX+1];
int NewTree = 0;
static struct sockaddr *kgetsa __P((struct sockaddr *));
static void p_tree __P((struct radix_node *));
static void p_rtnode __P((void));
static void ntreestuff __P((void));
static void np_rtentry __P((struct rt_msghdr *));
static void p_sockaddr __P((struct sockaddr *, struct sockaddr *, int, int));
static void p_flags __P((int, char *));
static void p_rtentry __P((struct rtentry *));
static u_long forgemask __P((u_long));
static void domask __P((char *, u_long, u_long));
#ifdef INET6
char *routename6 __P((struct sockaddr_in6 *));
char *netname6 __P((struct sockaddr_in6 *, struct in6_addr *));
#endif /*INET6*/
/*
* Print routing tables.
*/
void
routepr(rtree)
u_long rtree;
{
struct radix_node_head *rnh, head;
int i;
printf("Routing tables\n");
if (Aflag == 0 && NewTree)
ntreestuff();
else {
if (rtree == 0) {
printf("rt_tables: symbol not in namelist\n");
return;
}
kget(rtree, rt_tables);
for (i = 0; i <= AF_MAX; i++) {
if ((rnh = rt_tables[i]) == 0)
continue;
kget(rnh, head);
if (i == AF_UNSPEC) {
if (Aflag && af == 0) {
printf("Netmasks:\n");
p_tree(head.rnh_treetop);
}
} else if (af == AF_UNSPEC || af == i) {
pr_family(i);
do_rtent = 1;
pr_rthdr(i);
p_tree(head.rnh_treetop);
}
}
}
}
/*
* Print address family header before a section of the routing table.
*/
void
pr_family(af)
int af;
{
char *afname;
switch (af) {
case AF_INET:
afname = "Internet";
break;
#ifdef INET6
case AF_INET6:
afname = "Internet6";
break;
#endif /*INET6*/
case AF_IPX:
afname = "IPX";
break;
#ifdef NS
case AF_NS:
afname = "XNS";
break;
#endif
case AF_ISO:
afname = "ISO";
break;
case AF_APPLETALK:
afname = "AppleTalk";
break;
case AF_CCITT:
afname = "X.25";
break;
case AF_NETGRAPH:
afname = "Netgraph";
break;
default:
afname = NULL;
break;
}
if (afname)
printf("\n%s:\n", afname);
else
printf("\nProtocol Family %d:\n", af);
}
/* column widths; each followed by one space */
#ifndef INET6
#define WID_DST(af) 18 /* width of destination column */
#define WID_GW(af) 18 /* width of gateway column */
#else
#define WID_DST(af) \
((af) == AF_INET6 ? (lflag ? 39 : (nflag ? 33: 18)) : 18)
#define WID_GW(af) \
((af) == AF_INET6 ? (lflag ? 31 : (nflag ? 29 : 18)) : 18)
#endif /*INET6*/
/*
* Print header for routing table columns.
*/
void
pr_rthdr(af)
int af;
{
if (Aflag)
printf("%-8.8s ","Address");
if (af == AF_INET || lflag)
printf("%-*.*s %-*.*s %-6.6s %6.6s%8.8s %8.8s %6s\n",
WID_DST(af), WID_DST(af), "Destination",
WID_GW(af), WID_GW(af), "Gateway",
"Flags", "Refs", "Use", "Netif", "Expire");
else
printf("%-*.*s %-*.*s %-6.6s %8.8s %6s\n",
WID_DST(af), WID_DST(af), "Destination",
WID_GW(af), WID_GW(af), "Gateway",
"Flags", "Netif", "Expire");
}
static struct sockaddr *
kgetsa(dst)
register struct sockaddr *dst;
{
kget(dst, pt_u.u_sa);
if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len);
return (&pt_u.u_sa);
}
static void
p_tree(rn)
struct radix_node *rn;
{
again:
kget(rn, rnode);
if (rnode.rn_bit < 0) {
if (Aflag)
printf("%-8.8lx ", (u_long)rn);
if (rnode.rn_flags & RNF_ROOT) {
if (Aflag)
printf("(root node)%s",
rnode.rn_dupedkey ? " =>\n" : "\n");
} else if (do_rtent) {
kget(rn, rtentry);
p_rtentry(&rtentry);
if (Aflag)
p_rtnode();
} else {
p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
NULL, 0, 44);
putchar('\n');
}
if ((rn = rnode.rn_dupedkey))
goto again;
} else {
if (Aflag && do_rtent) {
printf("%-8.8lx ", (u_long)rn);
p_rtnode();
}
rn = rnode.rn_right;
p_tree(rnode.rn_left);
p_tree(rn);
}
}
char nbuf[20];
static void
p_rtnode()
{
struct radix_mask *rm = rnode.rn_mklist;
if (rnode.rn_bit < 0) {
if (rnode.rn_mask) {
printf("\t mask ");
p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
NULL, 0, -1);
} else if (rm == 0)
return;
} else {
sprintf(nbuf, "(%d)", rnode.rn_bit);
printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right);
}
while (rm) {
kget(rm, rmask);
sprintf(nbuf, " %d refs, ", rmask.rm_refs);
printf(" mk = %8.8lx {(%d),%s",
(u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " ");
if (rmask.rm_flags & RNF_NORMAL) {
struct radix_node rnode_aux;
printf(" <normal>, ");
kget(rmask.rm_leaf, rnode_aux);
p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask),
NULL, 0, -1);
} else
p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask),
NULL, 0, -1);
putchar('}');
if ((rm = rmask.rm_mklist))
printf(" ->");
}
putchar('\n');
}
static void
ntreestuff()
{
size_t needed;
int mib[6];
char *buf, *next, *lim;
register struct rt_msghdr *rtm;
mib[0] = CTL_NET;
mib[1] = PF_ROUTE;
mib[2] = 0;
mib[3] = 0;
mib[4] = NET_RT_DUMP;
mib[5] = 0;
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
err(1, "sysctl: net.route.0.0.dump estimate");
}
if ((buf = malloc(needed)) == 0) {
err(2, "malloc(%lu)", (unsigned long)needed);
}
if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
err(1, "sysctl: net.route.0.0.dump");
}
lim = buf + needed;
for (next = buf; next < lim; next += rtm->rtm_msglen) {
rtm = (struct rt_msghdr *)next;
np_rtentry(rtm);
}
}
static void
np_rtentry(rtm)
register struct rt_msghdr *rtm;
{
register struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
#ifdef notdef
static int masks_done, banner_printed;
#endif
static int old_af;
int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST;
#ifdef notdef
/* for the moment, netmasks are skipped over */
if (!banner_printed) {
printf("Netmasks:\n");
banner_printed = 1;
}
if (masks_done == 0) {
if (rtm->rtm_addrs != RTA_DST ) {
masks_done = 1;
af = sa->sa_family;
}
} else
#endif
af = sa->sa_family;
if (af != old_af) {
pr_family(af);
old_af = af;
}
if (rtm->rtm_addrs == RTA_DST)
p_sockaddr(sa, NULL, 0, 36);
else {
p_sockaddr(sa, NULL, rtm->rtm_flags, 16);
sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa);
p_sockaddr(sa, NULL, 0, 18);
}
p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
putchar('\n');
}
static void
p_sockaddr(sa, mask, flags, width)
struct sockaddr *sa, *mask;
int flags, width;
{
char workbuf[128], *cplim;
register char *cp = workbuf;
switch(sa->sa_family) {
case AF_INET:
{
register struct sockaddr_in *sin = (struct sockaddr_in *)sa;
if ((sin->sin_addr.s_addr == INADDR_ANY) &&
mask &&
ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr)
==0L)
cp = "default" ;
else if (flags & RTF_HOST)
cp = routename(sin->sin_addr.s_addr);
else if (mask)
cp = netname(sin->sin_addr.s_addr,
ntohl(((struct sockaddr_in *)mask)
->sin_addr.s_addr));
else
cp = netname(sin->sin_addr.s_addr, 0L);
break;
}
#ifdef INET6
case AF_INET6:
{
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
struct in6_addr *in6 = &sa6->sin6_addr;
/*
* XXX: This is a special workaround for KAME kernels.
* sin6_scope_id field of SA should be set in the future.
*/
if (IN6_IS_ADDR_LINKLOCAL(in6) ||
IN6_IS_ADDR_MC_LINKLOCAL(in6)) {
/* XXX: override is ok? */
sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]);
*(u_short *)&in6->s6_addr[2] = 0;
}
if (flags & RTF_HOST)
cp = routename6(sa6);
else if (mask)
cp = netname6(sa6,
&((struct sockaddr_in6 *)mask)->sin6_addr);
else {
cp = netname6(sa6, NULL);
}
break;
}
#endif /*INET6*/
case AF_IPX:
{
struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr;
if (ipx_nullnet(satoipx_addr(work)))
cp = "default";
else
cp = ipx_print(sa);
break;
}
case AF_APPLETALK:
{
if (!(flags & RTF_HOST) && mask)
cp = atalk_print2(sa,mask,9);
else
cp = atalk_print(sa,11);
break;
}
case AF_NETGRAPH:
{
printf("%s", ((struct sockaddr_ng *)sa)->sg_data);
break;
}
#ifdef NS
case AF_NS:
cp = ns_print(sa);
break;
#endif
case AF_LINK:
{
register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
sdl->sdl_slen == 0)
(void) sprintf(workbuf, "link#%d", sdl->sdl_index);
else
switch (sdl->sdl_type) {
case IFT_ETHER:
{
register int i;
register u_char *lla = (u_char *)sdl->sdl_data +
sdl->sdl_nlen;
cplim = "";
for (i = 0; i < sdl->sdl_alen; i++, lla++) {
cp += sprintf(cp, "%s%x", cplim, *lla);
cplim = ":";
}
cp = workbuf;
break;
}
default:
cp = link_ntoa(sdl);
break;
}
break;
}
default:
{
register u_char *s = (u_char *)sa->sa_data, *slim;
slim = sa->sa_len + (u_char *) sa;
cplim = cp + sizeof(workbuf) - 6;
cp += sprintf(cp, "(%d)", sa->sa_family);
while (s < slim && cp < cplim) {
cp += sprintf(cp, " %02x", *s++);
if (s < slim)
cp += sprintf(cp, "%02x", *s++);
}
cp = workbuf;
}
}
if (width < 0 )
printf("%s ", cp);
else {
if (nflag)
printf("%-*s ", width, cp);
else
printf("%-*.*s ", width, width, cp);
}
}
static void
p_flags(f, format)
register int f;
char *format;
{
char name[33], *flags;
register struct bits *p = bits;
for (flags = name; p->b_mask; p++)
if (p->b_mask & f)
*flags++ = p->b_val;
*flags = '\0';
printf(format, name);
}
static void
p_rtentry(rt)
register struct rtentry *rt;
{
static struct ifnet ifnet, *lastif;
static char name[16];
static char prettyname[9];
struct sockaddr *sa;
sa_u addr, mask;
/*
* Don't print cloned routes unless -a.
*/
if (rt->rt_flags & RTF_WASCLONED && !aflag)
return;
bzero(&addr, sizeof(addr));
if ((sa = kgetsa(rt_key(rt))))
bcopy(sa, &addr, sa->sa_len);
bzero(&mask, sizeof(mask));
if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt))))
bcopy(sa, &mask, sa->sa_len);
p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags,
WID_DST(addr.u_sa.sa_family));
p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST,
WID_GW(addr.u_sa.sa_family));
p_flags(rt->rt_flags, "%-6.6s ");
if (addr.u_sa.sa_family == AF_INET || lflag)
printf("%6ld %8ld ", rt->rt_refcnt, rt->rt_use);
if (rt->rt_ifp) {
if (rt->rt_ifp != lastif) {
kget(rt->rt_ifp, ifnet);
kread((u_long)ifnet.if_name, name, 16);
lastif = rt->rt_ifp;
snprintf(prettyname, sizeof prettyname,
"%s%d", name, ifnet.if_unit);
}
printf("%8.8s", prettyname);
if (rt->rt_rmx.rmx_expire) {
time_t expire_time;
if ((expire_time =
rt->rt_rmx.rmx_expire - time((time_t *)0)) > 0)
printf(" %6d%s", (int)expire_time,
rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
else
goto ifandkey;
} else if (rt->rt_nodes[0].rn_dupedkey) {
ifandkey:;
printf(" =>");
}
}
putchar('\n');
}
char *
routename(in)
u_long in;
{
register char *cp;
static char line[MAXHOSTNAMELEN];
struct hostent *hp;
cp = 0;
if (!nflag) {
hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
AF_INET);
if (hp) {
cp = hp->h_name;
trimdomain(cp, strlen(cp));
}
}
if (cp) {
strncpy(line, cp, sizeof(line) - 1);
line[sizeof(line) - 1] = '\0';
} else {
#define C(x) ((x) & 0xff)
in = ntohl(in);
sprintf(line, "%lu.%lu.%lu.%lu",
C(in >> 24), C(in >> 16), C(in >> 8), C(in));
}
return (line);
}
static u_long
forgemask(a)
u_long a;
{
u_long m;
if (IN_CLASSA(a))
m = IN_CLASSA_NET;
else if (IN_CLASSB(a))
m = IN_CLASSB_NET;
else
m = IN_CLASSC_NET;
return (m);
}
static void
domask(dst, addr, mask)
char *dst;
u_long addr, mask;
{
register int b, i;
if (!mask || (forgemask(addr) == mask)) {
*dst = '\0';
return;
}
i = 0;
for (b = 0; b < 32; b++)
if (mask & (1 << b)) {
register int bb;
i = b;
for (bb = b+1; bb < 32; bb++)
if (!(mask & (1 << bb))) {
i = -1; /* noncontig */
break;
}
break;
}
if (i == -1)
sprintf(dst, "&0x%lx", mask);
else
sprintf(dst, "/%d", 32-i);
}
/*
* Return the name of the network whose address is given.
* The address is assumed to be that of a net or subnet, not a host.
*/
char *
netname(in, mask)
u_long in, mask;
{
char *cp = 0;
static char line[MAXHOSTNAMELEN];
struct netent *np = 0;
u_long net, omask, dmask;
register u_long i;
i = ntohl(in);
omask = mask;
if (!nflag && i) {
dmask = forgemask(i);
net = i & dmask;
if (!(np = getnetbyaddr(i, AF_INET)) && net != i)
np = getnetbyaddr(net, AF_INET);
if (np) {
cp = np->n_name;
trimdomain(cp, strlen(cp));
}
}
if (cp)
strncpy(line, cp, sizeof(line) - 1);
else if ((i & 0xffffff) == 0)
sprintf(line, "%lu", C(i >> 24));
else if ((i & 0xffff) == 0)
sprintf(line, "%lu.%lu", C(i >> 24) , C(i >> 16));
else if ((i & 0xff) == 0)
sprintf(line, "%lu.%lu.%lu", C(i >> 24), C(i >> 16), C(i >> 8));
else
sprintf(line, "%lu.%lu.%lu.%lu", C(i >> 24),
C(i >> 16), C(i >> 8), C(i));
domask(line+strlen(line), i, omask);
return (line);
}
#ifdef INET6
char *
netname6(sa6, mask)
struct sockaddr_in6 *sa6;
struct in6_addr *mask;
{
static char line[MAXHOSTNAMELEN];
u_char *p = (u_char *)mask;
u_char *lim;
int masklen, illegal = 0, flag = NI_WITHSCOPEID;
if (mask) {
for (masklen = 0, lim = p + 16; p < lim; p++) {
switch (*p) {
case 0xff:
masklen += 8;
break;
case 0xfe:
masklen += 7;
break;
case 0xfc:
masklen += 6;
break;
case 0xf8:
masklen += 5;
break;
case 0xf0:
masklen += 4;
break;
case 0xe0:
masklen += 3;
break;
case 0xc0:
masklen += 2;
break;
case 0x80:
masklen += 1;
break;
case 0x00:
break;
default:
illegal ++;
break;
}
}
if (illegal)
fprintf(stderr, "illegal prefixlen\n");
}
else
masklen = 128;
if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr))
return("default");
if (nflag)
flag |= NI_NUMERICHOST;
getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line),
NULL, 0, flag);
if (nflag)
sprintf(&line[strlen(line)], "/%d", masklen);
return line;
}
char *
routename6(sa6)
struct sockaddr_in6 *sa6;
{
static char line[MAXHOSTNAMELEN];
int flag = NI_WITHSCOPEID;
/* use local variable for safety */
struct sockaddr_in6 sa6_local = {AF_INET6, sizeof(sa6_local),};
sa6_local.sin6_addr = sa6->sin6_addr;
sa6_local.sin6_scope_id = sa6->sin6_scope_id;
if (nflag)
flag |= NI_NUMERICHOST;
getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len,
line, sizeof(line), NULL, 0, flag);
return line;
}
#endif /*INET6*/
/*
* Print routing statistics
*/
void
rt_stats(off)
u_long off;
{
struct rtstat rtstat;
if (off == 0) {
printf("rtstat: symbol not in namelist\n");
return;
}
kread(off, (char *)&rtstat, sizeof (rtstat));
printf("routing:\n");
printf("\t%u bad routing redirect%s\n",
rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
printf("\t%u dynamically created route%s\n",
rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
printf("\t%u new gateway%s due to redirects\n",
rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
printf("\t%u destination%s found unreachable\n",
rtstat.rts_unreach, plural(rtstat.rts_unreach));
printf("\t%u use%s of a wildcard route\n",
rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
}
char *
ipx_print(sa)
register struct sockaddr *sa;
{
u_short port;
struct servent *sp = 0;
char *net = "", *host = "";
register char *p;
register u_char *q;
struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr;
static char mybuf[50];
char cport[10], chost[15], cnet[15];
port = ntohs(work.x_port);
if (ipx_nullnet(work) && ipx_nullhost(work)) {
if (port) {
if (sp)
sprintf(mybuf, "*.%s", sp->s_name);
else
sprintf(mybuf, "*.%x", port);
} else
sprintf(mybuf, "*.*");
return (mybuf);
}
if (ipx_wildnet(work))
net = "any";
else if (ipx_nullnet(work))
net = "*";
else {
q = work.x_net.c_net;
sprintf(cnet, "%02x%02x%02x%02x",
q[0], q[1], q[2], q[3]);
for (p = cnet; *p == '0' && p < cnet + 8; p++)
continue;
net = p;
}
if (ipx_wildhost(work))
host = "any";
else if (ipx_nullhost(work))
host = "*";
else {
q = work.x_host.c_host;
sprintf(chost, "%02x%02x%02x%02x%02x%02x",
q[0], q[1], q[2], q[3], q[4], q[5]);
for (p = chost; *p == '0' && p < chost + 12; p++)
continue;
host = p;
}
if (port) {
if (strcmp(host, "*") == 0)
host = "";
if (sp)
snprintf(cport, sizeof(cport),
"%s%s", *host ? "." : "", sp->s_name);
else
snprintf(cport, sizeof(cport),
"%s%x", *host ? "." : "", port);
} else
*cport = 0;
snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport);
return(mybuf);
}
char *
ipx_phost(sa)
struct sockaddr *sa;
{
register struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa;
struct sockaddr_ipx work;
static union ipx_net ipx_zeronet;
char *p;
struct ipx_addr in;
work = *sipx;
in = work.sipx_addr;
work.sipx_addr.x_port = 0;
work.sipx_addr.x_net = ipx_zeronet;
p = ipx_print((struct sockaddr *)&work);
if (strncmp("*.", p, 2) == 0) p += 2;
return(p);
}
#ifdef NS
short ns_nullh[] = {0,0,0};
short ns_bh[] = {-1,-1,-1};
char *
ns_print(sa)
register struct sockaddr *sa;
{
register struct sockaddr_ns *sns = (struct sockaddr_ns*)sa;
struct ns_addr work;
union { union ns_net net_e; u_long long_e; } net;
u_short port;
static char mybuf[50], cport[10], chost[25];
char *host = "";
register char *p; register u_char *q;
work = sns->sns_addr;
port = ntohs(work.x_port);
work.x_port = 0;
net.net_e = work.x_net;
if (ns_nullhost(work) && net.long_e == 0) {
if (port ) {
sprintf(mybuf, "*.%xH", port);
upHex(mybuf);
} else
sprintf(mybuf, "*.*");
return (mybuf);
}
if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
host = "any";
} else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
host = "*";
} else {
q = work.x_host.c_host;
sprintf(chost, "%02x%02x%02x%02x%02x%02xH",
q[0], q[1], q[2], q[3], q[4], q[5]);
for (p = chost; *p == '0' && p < chost + 12; p++)
continue;
host = p;
}
if (port)
sprintf(cport, ".%xH", htons(port));
else
*cport = 0;
sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport);
upHex(mybuf);
return(mybuf);
}
char *
ns_phost(sa)
struct sockaddr *sa;
{
register struct sockaddr_ns *sns = (struct sockaddr_ns *)sa;
struct sockaddr_ns work;
static union ns_net ns_zeronet;
char *p;
work = *sns;
work.sns_addr.x_port = 0;
work.sns_addr.x_net = ns_zeronet;
p = ns_print((struct sockaddr *)&work);
if (strncmp("0H.", p, 3) == 0)
p += 3;
return(p);
}
#endif
void
upHex(p0)
char *p0;
{
register char *p = p0;
for (; *p; p++)
switch (*p) {
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
*p += ('A' - 'a');
break;
}
}
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