Factor out the netstat route printing code and use it here. There is no
point in having 2 different copies; fixes PR/49371
This commit is contained in:
christos
parent
a8efcf820f
commit
30f4c8e6f6
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@ -1,11 +1,11 @@
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# $NetBSD: Makefile,v 1.25 2010/12/13 17:39:47 pooka Exp $
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# $NetBSD: Makefile,v 1.26 2014/11/06 21:29:32 christos Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/5/93
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.include <bsd.own.mk>
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RUMPPRG=route
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MAN= route.8
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SRCS= route.c show.c keywords.c
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SRCS= route.c show.c keywords.c rtutil.c
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.if (${USE_INET6} != "no")
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CPPFLAGS+=-DINET6
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@ -1,4 +1,4 @@
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/* $NetBSD: extern.h,v 1.14 2009/10/21 01:07:46 snj Exp $ */
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/* $NetBSD: extern.h,v 1.15 2014/11/06 21:29:32 christos Exp $ */
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/*
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* Copyright (c) 1997 Christos Zoulas. All rights reserved.
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@ -30,15 +30,11 @@ struct sockaddr_ns;
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void parse_show_opts(int, char * const *, int *, int *, const char **, bool);
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/* show.c */
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void show(int, char * const *);
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void show(int, char * const *, int);
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/* route.c */
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extern int nflag, Sflag;
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#define NOTDEFSTRING "0.0.0.0/xxx.xxx.xxx.xxx\0"
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int keyword(const char *);
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int netmask_length(struct sockaddr *, int);
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char *netmask_string(const struct sockaddr *, int, int);
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const char *routename(const struct sockaddr *, struct sockaddr *, int);
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const char *netname(const struct sockaddr *, struct sockaddr *);
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const char *ns_print(struct sockaddr_ns *);
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void usage(const char *)__attribute__((__noreturn__));
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@ -1,4 +1,4 @@
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/* $NetBSD: prog_ops.h,v 1.2 2010/12/13 19:19:10 pooka Exp $ */
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/* $NetBSD: prog_ops.h,v 1.3 2014/11/06 21:29:32 christos Exp $ */
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/*
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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@ -32,9 +32,13 @@
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#include <sys/types.h>
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#ifndef CRUNCHOPS
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/* XXX: Keep same order with netstat! */
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struct prog_ops {
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int (*op_init)(void);
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int (*op_sysctl)(const int *, u_int, void *, size_t *,
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const void *, size_t);
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int (*op_socket)(int, int, int);
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int (*op_open)(const char *, int, ...);
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pid_t (*op_getpid)(void);
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@ -42,8 +46,6 @@ struct prog_ops {
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ssize_t (*op_read)(int, void *, size_t);
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ssize_t (*op_write)(int, const void *, size_t);
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int (*op_sysctl)(const int *, u_int, void *, size_t *,
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const void *, size_t);
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int (*op_shutdown)(int, int);
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};
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@ -1,4 +1,4 @@
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/* $NetBSD: route.c,v 1.144 2013/10/19 15:59:15 christos Exp $ */
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/* $NetBSD: route.c,v 1.145 2014/11/06 21:29:32 christos Exp $ */
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/*
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* Copyright (c) 1983, 1989, 1991, 1993
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@ -39,7 +39,7 @@ __COPYRIGHT("@(#) Copyright (c) 1983, 1989, 1991, 1993\
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#if 0
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static char sccsid[] = "@(#)route.c 8.6 (Berkeley) 4/28/95";
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#else
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__RCSID("$NetBSD: route.c,v 1.144 2013/10/19 15:59:15 christos Exp $");
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__RCSID("$NetBSD: route.c,v 1.145 2014/11/06 21:29:32 christos Exp $");
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#endif
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#endif /* not lint */
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@ -73,6 +73,7 @@ __RCSID("$NetBSD: route.c,v 1.144 2013/10/19 15:59:15 christos Exp $");
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#include "keywords.h"
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#include "extern.h"
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#include "prog_ops.h"
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#include "rtutil.h"
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union sockunion {
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struct sockaddr sa;
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@ -95,7 +96,6 @@ struct sou {
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*so_ifp, *so_mpls;
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};
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static char *any_ntoa(const struct sockaddr *);
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static const char *route_strerror(int);
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static void set_metric(const char *, int);
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static int newroute(int, char *const *);
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@ -105,6 +105,7 @@ static int inet6_makenetandmask(const struct sockaddr_in6 *, struct sou *);
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#endif
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static int getaddr(int, const char *, struct hostent **, struct sou *);
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static int flushroutes(int, char *const [], int);
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static char *netmask_string(const struct sockaddr *, int, int);
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static int prefixlen(const char *, struct sou *);
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#ifndef SMALL
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static void interfaces(void);
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@ -168,7 +169,7 @@ main(int argc, char * const *argv)
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doflush = 1;
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break;
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case 'n':
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nflag = 1;
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nflag = RT_NFLAG;
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break;
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case 'q':
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qflag = 1;
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@ -224,7 +225,7 @@ main(int argc, char * const *argv)
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return newroute(argc, argv);
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case K_SHOW:
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show(argc, argv);
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show(argc, argv, nflag);
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return 0;
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#ifndef SMALL
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@ -245,6 +246,36 @@ main(int argc, char * const *argv)
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}
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}
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static char *
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netmask_string(const struct sockaddr *mask, int len, int family)
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{
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static char smask[INET6_ADDRSTRLEN];
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struct sockaddr_in nsin;
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struct sockaddr_in6 nsin6;
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if (len >= 0)
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snprintf(smask, sizeof(smask), "%d", len);
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else {
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switch (family) {
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case AF_INET:
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memset(&nsin, 0, sizeof(nsin));
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memcpy(&nsin, mask, mask->sa_len);
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snprintf(smask, sizeof(smask), "%s",
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inet_ntoa(nsin.sin_addr));
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break;
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case AF_INET6:
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memset(&nsin6, 0, sizeof(nsin6));
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memcpy(&nsin6, mask, mask->sa_len);
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inet_ntop(family, &nsin6.sin6_addr, smask,
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sizeof(smask));
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break;
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default:
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snprintf(smask, sizeof(smask), "%s", any_ntoa(mask));
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}
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}
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return smask;
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}
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/*
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* Purge all entries in the routing tables not
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* associated with network interfaces.
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@ -320,12 +351,10 @@ flushroutes(int argc, char * const argv[], int doall)
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if (verbose)
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print_rtmsg(rtm, rlen);
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else {
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(void)printf("%-20.20s ",
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routename(sa, NULL, rtm->rtm_flags));
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(void)printf("%-20.20s ", netname(sa, NULL, nflag));
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sa = (struct sockaddr *)(RT_ROUNDUP(sa->sa_len) +
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(char *)sa);
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(void)printf("%-20.20s ",
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routename(sa, NULL, RTF_HOST));
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(void)printf("%-20.20s ", routename(sa, nflag));
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(void)printf("done\n");
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}
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}
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@ -333,402 +362,6 @@ flushroutes(int argc, char * const argv[], int doall)
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return 0;
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}
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static char hexlist[] = "0123456789abcdef";
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static char *
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any_ntoa(const struct sockaddr *sa)
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{
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static char obuf[3 * 256];
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const char *in;
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char *out;
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int len;
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#if __GNUC__ > 2
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len = sa->sa_len - offsetof(struct sockaddr, sa_data);
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#else
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len = sa->sa_len - ((struct sockaddr*)&sa->sa_data - sa);
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#endif
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in = sa->sa_data;
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out = obuf;
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do {
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*out++ = hexlist[(*in >> 4) & 15];
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*out++ = hexlist[(*in++) & 15];
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*out++ = '.';
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} while (--len > 0);
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out[-1] = '\0';
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return obuf;
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}
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int
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netmask_length(struct sockaddr *nm, int family)
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{
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static int
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/* number of bits in a nibble */
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_t[] = { 0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4 },
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/* good nibbles are 1111, 1110, 1100, 1000, 0000 */
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_g[] = { 1,0,0,0,0,0,0,0,1,0,0,0,1,0,1,1 };
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int mask, good, zeroes, maskbytes, bit, i;
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unsigned char *maskdata;
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if (nm == NULL)
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return 0;
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mask = 0;
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good = 1;
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zeroes = 0;
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switch (family) {
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case AF_INET: {
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struct sockaddr_in *nsin = (struct sockaddr_in *)nm;
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maskdata = (unsigned char *)&nsin->sin_addr;
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maskbytes = nsin->sin_len -
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((caddr_t)&nsin->sin_addr - (caddr_t)nsin);
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break;
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}
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case AF_INET6: {
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struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nm;
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maskdata = (unsigned char *)&sin6->sin6_addr;
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maskbytes = sin6->sin6_len -
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((caddr_t)&sin6->sin6_addr - (caddr_t)sin6);
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break;
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}
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default:
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return 0;
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}
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/*
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* Count the bits in the nibbles of the mask, and marking the
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* netmask as not good (or at best, non-standard and very
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* discouraged, in the case of AF_INET) if we find either of
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* a nibble with non-contiguous bits, or a non-zero nibble
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* after we've found a zero nibble.
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*/
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for (i = 0; i < maskbytes; i++) {
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/* high nibble */
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mask += bit = _t[maskdata[i] >> 4];
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good &= _g[maskdata[i] >> 4];
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if (zeroes && bit)
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good = 0;
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if (bit == 0)
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zeroes = 1;
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/* low nibble */
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mask += bit = _t[maskdata[i] & 0xf];
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good &= _g[maskdata[i] & 0xf];
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if (zeroes && bit)
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good = 0;
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if (bit == 0)
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zeroes = 1;
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}
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/*
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* Always return the number of bits found, but as a negative
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* if the mask wasn't one we like.
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*/
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return good ? mask : -mask;
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}
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char *
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netmask_string(const struct sockaddr *mask, int len, int family)
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{
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static char smask[INET6_ADDRSTRLEN];
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struct sockaddr_in nsin;
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struct sockaddr_in6 nsin6;
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if (len >= 0)
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snprintf(smask, sizeof(smask), "%d", len);
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else {
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switch (family) {
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case AF_INET:
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memset(&nsin, 0, sizeof(nsin));
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memcpy(&nsin, mask, mask->sa_len);
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snprintf(smask, sizeof(smask), "%s",
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inet_ntoa(nsin.sin_addr));
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break;
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case AF_INET6:
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memset(&nsin6, 0, sizeof(nsin6));
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memcpy(&nsin6, mask, mask->sa_len);
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inet_ntop(family, &nsin6.sin6_addr, smask,
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sizeof(smask));
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break;
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default:
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snprintf(smask, sizeof(smask), "%s", any_ntoa(mask));
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}
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}
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return smask;
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}
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const char *
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routename(const struct sockaddr *sa, struct sockaddr *nm, int flags)
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{
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const char *cp;
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static char line[50];
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struct hostent *hp;
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static char domain[MAXHOSTNAMELEN + 1];
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static int first = 1;
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struct in_addr in;
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int nml;
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if ((flags & RTF_HOST) == 0)
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return netname(sa, nm);
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if (first) {
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first = 0;
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if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
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(cp = strchr(domain, '.')))
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(void)strlcpy(domain, cp + 1, sizeof(domain));
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else
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domain[0] = 0;
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}
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if (sa->sa_len == 0)
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strlcpy(line, "default", sizeof(line));
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else switch (sa->sa_family) {
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case AF_INET:
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in = ((const struct sockaddr_in *)sa)->sin_addr;
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nml = netmask_length(nm, AF_INET);
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cp = 0;
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if (in.s_addr == INADDR_ANY || sa->sa_len < 4) {
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if (nml == 0)
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cp = "default";
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else {
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static char notdefault[sizeof(NOTDEFSTRING)];
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snprintf(notdefault, sizeof(notdefault),
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"0.0.0.0/%s",
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netmask_string(nm, nml, AF_INET));
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cp = notdefault;
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}
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}
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if (cp == 0 && !nflag) {
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hp = gethostbyaddr((char *)&in, sizeof(struct in_addr),
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AF_INET);
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if (hp) {
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char *ccp;
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if ((ccp = strchr(hp->h_name, '.')) &&
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!strcmp(ccp + 1, domain))
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*ccp = '\0';
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cp = hp->h_name;
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}
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}
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if (cp)
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(void)strlcpy(line, cp, sizeof(line));
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else
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(void)strlcpy(line, inet_ntoa(in), sizeof(line));
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break;
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case AF_LINK:
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return link_ntoa((const struct sockaddr_dl *)sa);
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#ifdef INET6
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case AF_INET6:
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{
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struct sockaddr_in6 sin6;
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int niflags;
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char nihost[NI_MAXHOST];
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niflags = 0;
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if (nflag)
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niflags |= NI_NUMERICHOST;
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memset(&sin6, 0, sizeof(sin6));
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memcpy(&sin6, sa, sa->sa_len);
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sin6.sin6_len = sizeof(struct sockaddr_in6);
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sin6.sin6_family = AF_INET6;
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inet6_getscopeid(&sin6, INET6_IS_ADDR_LINKLOCAL|
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INET6_IS_ADDR_MC_LINKLOCAL);
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nml = netmask_length(nm, AF_INET6);
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if (IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr)) {
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if (nml == 0)
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strlcpy(line, "::", sizeof(line));
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else
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/* noncontiguous never happens in ipv6 */
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snprintf(line, sizeof(line), "::/%d", nml);
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}
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else if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
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nihost, sizeof(nihost), NULL, 0, niflags) != 0)
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strlcpy(line, "invalid", sizeof(line));
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else {
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char *ccp;
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if (!nflag && (ccp = strchr(nihost, '.')) &&
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strcmp(ccp + 1, domain) == 0)
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*ccp = '\0';
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strlcpy(line, nihost, sizeof(line));
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}
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break;
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}
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#endif
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#ifndef SMALL
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case AF_APPLETALK:
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(void)snprintf(line, sizeof(line), "atalk %d.%d",
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((const struct sockaddr_at *)sa)->sat_addr.s_net,
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((const struct sockaddr_at *)sa)->sat_addr.s_node);
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break;
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case AF_MPLS:
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{
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union mpls_shim ms;
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const union mpls_shim *pms;
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size_t psize = sizeof(struct sockaddr_mpls), len;
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ms.s_addr =((const struct sockaddr_mpls*)sa)->smpls_addr.s_addr;
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ms.s_addr = ntohl(ms.s_addr);
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len = snprintf(line, sizeof(line), "%u", ms.shim.label);
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if (len >= sizeof(line))
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errx(1, "snprintf");
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pms = &((const struct sockaddr_mpls*)sa)->smpls_addr;
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while (psize < sa->sa_len) {
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size_t alen;
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pms++;
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ms.s_addr = ntohl(pms->s_addr);
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alen = snprintf(line + len, sizeof(line) - len, " %u",
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ms.shim.label);
|
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if (alen >= sizeof(line) - len)
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errx(1, "snprintf");
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len += alen;
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psize += sizeof(ms);
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}
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break;
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}
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#endif /* SMALL */
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default:
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(void)snprintf(line, sizeof line, "(%d) %s",
|
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sa->sa_family, any_ntoa(sa));
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||||
break;
|
||||
|
||||
}
|
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return line;
|
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}
|
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|
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/*
|
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* 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.
|
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*/
|
||||
const char *
|
||||
netname(const struct sockaddr *sa, struct sockaddr *nm)
|
||||
{
|
||||
const char *cp = 0;
|
||||
static char line[50];
|
||||
struct netent *np = 0;
|
||||
u_int32_t net, mask;
|
||||
u_int32_t i;
|
||||
int subnetshift, nml;
|
||||
struct in_addr in;
|
||||
|
||||
switch (sa->sa_family) {
|
||||
|
||||
case AF_INET:
|
||||
in = ((const struct sockaddr_in *)sa)->sin_addr;
|
||||
i = ntohl(in.s_addr);
|
||||
nml = netmask_length(nm, AF_INET);
|
||||
if (i == 0) {
|
||||
if (nml == 0)
|
||||
cp = "default";
|
||||
else {
|
||||
static char notdefault[sizeof(NOTDEFSTRING)];
|
||||
|
||||
snprintf(notdefault, sizeof(notdefault),
|
||||
"0.0.0.0/%s",
|
||||
netmask_string(nm, nml, AF_INET));
|
||||
cp = notdefault;
|
||||
}
|
||||
}
|
||||
else if (!nflag) {
|
||||
if (IN_CLASSA(i)) {
|
||||
mask = IN_CLASSA_NET;
|
||||
subnetshift = 8;
|
||||
} else if (IN_CLASSB(i)) {
|
||||
mask = IN_CLASSB_NET;
|
||||
subnetshift = 8;
|
||||
} else {
|
||||
mask = IN_CLASSC_NET;
|
||||
subnetshift = 4;
|
||||
}
|
||||
/*
|
||||
* If there are more bits than the standard mask
|
||||
* would suggest, subnets must be in use.
|
||||
* Guess at the subnet mask, assuming reasonable
|
||||
* width subnet fields.
|
||||
*/
|
||||
while (i &~ mask)
|
||||
mask = (int32_t)mask >> subnetshift;
|
||||
net = i & mask;
|
||||
while ((mask & 1) == 0)
|
||||
mask >>= 1, net >>= 1;
|
||||
np = getnetbyaddr(net, AF_INET);
|
||||
if (np)
|
||||
cp = np->n_name;
|
||||
}
|
||||
if (cp)
|
||||
(void)strlcpy(line, cp, sizeof(line));
|
||||
else {
|
||||
if (nml == 0)
|
||||
strlcpy(line, inet_ntoa(in), sizeof(line));
|
||||
else if (nml < 0) {
|
||||
snprintf(line, sizeof(line), "%s&%s",
|
||||
inet_ntoa(in),
|
||||
netmask_string(nm, nml, AF_INET));
|
||||
} else {
|
||||
snprintf(line, sizeof(line), "%s/%d",
|
||||
inet_ntoa(in), nml);
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case AF_LINK:
|
||||
return link_ntoa((const struct sockaddr_dl *)sa);
|
||||
|
||||
#ifdef INET6
|
||||
case AF_INET6:
|
||||
{
|
||||
struct sockaddr_in6 sin6;
|
||||
int niflags;
|
||||
|
||||
niflags = 0;
|
||||
if (nflag)
|
||||
niflags |= NI_NUMERICHOST;
|
||||
memset(&sin6, 0, sizeof(sin6));
|
||||
memcpy(&sin6, sa, sa->sa_len);
|
||||
sin6.sin6_len = sizeof(struct sockaddr_in6);
|
||||
sin6.sin6_family = AF_INET6;
|
||||
inet6_getscopeid(&sin6, INET6_IS_ADDR_LINKLOCAL|
|
||||
INET6_IS_ADDR_MC_LINKLOCAL);
|
||||
nml = netmask_length(nm, AF_INET6);
|
||||
if (IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr)) {
|
||||
if (nml == 0)
|
||||
strlcpy(line, "::", sizeof(line));
|
||||
else
|
||||
/* noncontiguous never happens in ipv6 */
|
||||
snprintf(line, sizeof(line), "::/%d", nml);
|
||||
}
|
||||
else if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
|
||||
line, sizeof(line), NULL, 0, niflags) != 0)
|
||||
strlcpy(line, "invalid", sizeof(line));
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef SMALL
|
||||
case AF_APPLETALK:
|
||||
(void)snprintf(line, sizeof(line), "atalk %d.%d",
|
||||
((const struct sockaddr_at *)sa)->sat_addr.s_net,
|
||||
((const struct sockaddr_at *)sa)->sat_addr.s_node);
|
||||
break;
|
||||
#endif /* SMALL */
|
||||
|
||||
default:
|
||||
(void)snprintf(line, sizeof line, "af %d: %s",
|
||||
sa->sa_family, any_ntoa(sa));
|
||||
break;
|
||||
}
|
||||
return line;
|
||||
}
|
||||
|
||||
static const char *
|
||||
route_strerror(int error)
|
||||
{
|
||||
|
|
@ -1826,7 +1459,7 @@ print_getmsg(struct rt_msghdr *rtm, int msglen, struct sou *soup)
|
|||
|
||||
if (! shortoutput) {
|
||||
(void)printf(" route to: %s\n",
|
||||
routename(&soup->so_dst->sa, NULL, RTF_HOST));
|
||||
routename(&soup->so_dst->sa, nflag));
|
||||
}
|
||||
if (rtm->rtm_version != RTM_VERSION) {
|
||||
warnx("routing message version %d not understood",
|
||||
|
|
@ -1875,19 +1508,19 @@ print_getmsg(struct rt_msghdr *rtm, int msglen, struct sou *soup)
|
|||
mask->sa_family = dst->sa_family; /* XXX */
|
||||
if (dst && ! shortoutput)
|
||||
(void)printf("destination: %s\n",
|
||||
routename(dst, mask, RTF_HOST));
|
||||
routename(dst, nflag));
|
||||
if (mask && ! shortoutput) {
|
||||
int savenflag = nflag;
|
||||
|
||||
nflag = 1;
|
||||
nflag = RT_NFLAG;
|
||||
(void)printf(" mask: %s\n",
|
||||
routename(mask, NULL, RTF_HOST));
|
||||
routename(mask, nflag));
|
||||
nflag = savenflag;
|
||||
}
|
||||
if (gate && rtm->rtm_flags & RTF_GATEWAY) {
|
||||
const char *name;
|
||||
|
||||
name = routename(gate, NULL, RTF_HOST);
|
||||
name = routename(gate, nflag);
|
||||
if (shortoutput) {
|
||||
if (*name == '\0')
|
||||
return 1;
|
||||
|
|
@ -1897,7 +1530,7 @@ print_getmsg(struct rt_msghdr *rtm, int msglen, struct sou *soup)
|
|||
}
|
||||
if (mpls) {
|
||||
const char *name;
|
||||
name = routename(mpls, NULL, RTF_HOST);
|
||||
name = routename(mpls, nflag);
|
||||
if(shortoutput) {
|
||||
if (*name == '\0')
|
||||
return 1;
|
||||
|
|
@ -1908,7 +1541,7 @@ print_getmsg(struct rt_msghdr *rtm, int msglen, struct sou *soup)
|
|||
|
||||
if (ifa && ! shortoutput)
|
||||
(void)printf(" local addr: %s\n",
|
||||
routename(ifa, NULL, RTF_HOST));
|
||||
routename(ifa, nflag));
|
||||
if (ifp && ! shortoutput)
|
||||
(void)printf(" interface: %.*s\n",
|
||||
ifp->sdl_nlen, ifp->sdl_data);
|
||||
|
|
@ -2002,7 +1635,7 @@ pmsg_addrs(const char *cp, int addrs)
|
|||
netmask_string(sa[i], -1, nmf));
|
||||
else
|
||||
(void)printf(" %s",
|
||||
routename(sa[i], NULL, RTF_HOST));
|
||||
routename(sa[i], nflag));
|
||||
}
|
||||
}
|
||||
(void)putchar('\n');
|
||||
|
|
|
|||
|
|
@ -0,0 +1,786 @@
|
|||
/* $NetBSD: rtutil.c,v 1.1 2014/11/06 21:29:32 christos Exp $ */
|
||||
/* $OpenBSD: show.c,v 1.1 2006/05/27 19:16:37 claudio Exp $ */
|
||||
|
||||
/*
|
||||
* 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. 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.
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/protosw.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/mbuf.h>
|
||||
#include <sys/sysctl.h>
|
||||
|
||||
#include <net/if.h>
|
||||
#include <net/if_dl.h>
|
||||
#include <net/if_types.h>
|
||||
#include <net/pfvar.h>
|
||||
#include <net/pfkeyv2.h>
|
||||
#include <net/route.h>
|
||||
#include <netinet/in.h>
|
||||
#include <netinet/if_ether.h>
|
||||
#include <netatalk/at.h>
|
||||
#include <netmpls/mpls.h>
|
||||
#include <arpa/inet.h>
|
||||
|
||||
#include <err.h>
|
||||
#include <errno.h>
|
||||
#include <netdb.h>
|
||||
#include <stdio.h>
|
||||
#include <stddef.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "prog_ops.h"
|
||||
#include "rtutil.h"
|
||||
|
||||
|
||||
#define PLEN (LONG_BIT / 4 + 2)
|
||||
#define PFKEYV2_CHUNK sizeof(u_int64_t)
|
||||
static char *link_print(const struct sockaddr *);
|
||||
|
||||
/*
|
||||
* Definitions for showing gateway flags.
|
||||
*/
|
||||
struct bits {
|
||||
int b_mask;
|
||||
char b_val;
|
||||
};
|
||||
static const struct bits bits[] = {
|
||||
{ RTF_UP, 'U' },
|
||||
{ RTF_GATEWAY, 'G' },
|
||||
{ RTF_HOST, 'H' },
|
||||
{ RTF_REJECT, 'R' },
|
||||
{ RTF_BLACKHOLE, 'B' },
|
||||
{ RTF_DYNAMIC, 'D' },
|
||||
{ RTF_MODIFIED, 'M' },
|
||||
{ RTF_DONE, 'd' }, /* Completed -- for routing messages only */
|
||||
{ RTF_MASK, 'm' }, /* Mask Present -- for routing messages only */
|
||||
{ RTF_CLONING, 'C' },
|
||||
{ RTF_XRESOLVE, 'X' },
|
||||
{ RTF_LLINFO, 'L' },
|
||||
{ RTF_STATIC, 'S' },
|
||||
{ RTF_PROTO1, '1' },
|
||||
{ RTF_PROTO2, '2' },
|
||||
/* { RTF_PROTO3, '3' }, */
|
||||
{ RTF_CLONED, 'c' },
|
||||
/* { RTF_JUMBO, 'J' }, */
|
||||
{ RTF_ANNOUNCE, 'p' },
|
||||
{ 0, 0 }
|
||||
};
|
||||
|
||||
#ifndef SMALL
|
||||
static void p_tag(const struct sockaddr *sa);
|
||||
#endif
|
||||
static void p_rtentry(struct rt_msghdr *, int, int);
|
||||
|
||||
/*
|
||||
* Print routing tables.
|
||||
*/
|
||||
void
|
||||
p_rttables(int paf, int flags, int pflags, int interesting)
|
||||
{
|
||||
struct rt_msghdr *rtm;
|
||||
char *buf = NULL, *next, *lim = NULL;
|
||||
size_t needed;
|
||||
int mib[6];
|
||||
struct sockaddr *sa;
|
||||
|
||||
mib[0] = CTL_NET;
|
||||
mib[1] = PF_ROUTE;
|
||||
mib[2] = 0;
|
||||
mib[3] = paf;
|
||||
mib[4] = NET_RT_DUMP;
|
||||
mib[5] = 0;
|
||||
if (prog_sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
|
||||
err(1, "route-sysctl-estimate");
|
||||
if (needed > 0) {
|
||||
if ((buf = malloc(needed)) == 0)
|
||||
err(1, NULL);
|
||||
if (prog_sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
|
||||
err(1, "sysctl of routing table");
|
||||
lim = buf + needed;
|
||||
}
|
||||
|
||||
printf("Routing tables\n");
|
||||
|
||||
if (buf) {
|
||||
for (next = buf; next < lim; next += rtm->rtm_msglen) {
|
||||
rtm = (struct rt_msghdr *)next;
|
||||
sa = (struct sockaddr *)(rtm + 1);
|
||||
if ((rtm->rtm_flags & pflags) != pflags)
|
||||
continue;
|
||||
if (paf != AF_UNSPEC && sa->sa_family != paf)
|
||||
continue;
|
||||
p_rtentry(rtm, flags, interesting);
|
||||
}
|
||||
free(buf);
|
||||
buf = NULL;
|
||||
}
|
||||
|
||||
if (paf != 0 && paf != PF_KEY)
|
||||
return;
|
||||
|
||||
#if 0 /* XXX-elad */
|
||||
mib[0] = CTL_NET;
|
||||
mib[1] = PF_KEY;
|
||||
mib[2] = PF_KEY_V2;
|
||||
mib[3] = NET_KEY_SPD_DUMP;
|
||||
mib[4] = mib[5] = 0;
|
||||
|
||||
if (prog_sysctl(mib, 4, NULL, &needed, NULL, 0) == -1) {
|
||||
if (errno == ENOPROTOOPT)
|
||||
return;
|
||||
err(1, "spd-sysctl-estimate");
|
||||
}
|
||||
if (needed > 0) {
|
||||
if ((buf = malloc(needed)) == 0)
|
||||
err(1, NULL);
|
||||
if (prog_sysctl(mib, 4, buf, &needed, NULL, 0) == -1)
|
||||
err(1,"sysctl of spd");
|
||||
lim = buf + needed;
|
||||
}
|
||||
|
||||
if (buf) {
|
||||
printf("\nEncap:\n");
|
||||
|
||||
for (next = buf; next < lim; next += msg->sadb_msg_len *
|
||||
PFKEYV2_CHUNK) {
|
||||
msg = (struct sadb_msg *)next;
|
||||
if (msg->sadb_msg_len == 0)
|
||||
break;
|
||||
p_pfkentry(msg);
|
||||
}
|
||||
free(buf);
|
||||
buf = NULL;
|
||||
}
|
||||
#endif /* 0 */
|
||||
}
|
||||
|
||||
/*
|
||||
* column widths; each followed by one space
|
||||
* width of destination/gateway column
|
||||
* strlen("fe80::aaaa:bbbb:cccc:dddd@gif0") == 30, strlen("/128") == 4
|
||||
*/
|
||||
#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 ? ((flags & RT_NFLAG) ? 34 : 18) : 18)
|
||||
#define WID_GW(af) ((af) == AF_INET6 ? ((flags & RT_NFLAG) ? 30 : 18) : 18)
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Print header for routing table columns.
|
||||
*/
|
||||
void
|
||||
p_rthdr(int paf, int flags)
|
||||
{
|
||||
#ifndef SMALL
|
||||
if (flags & RT_AFLAG)
|
||||
printf("%-*.*s ", PLEN, PLEN, "Address");
|
||||
if (paf == PF_KEY) {
|
||||
printf("%-18s %-5s %-18s %-5s %-5s %-22s\n",
|
||||
"Source", "Port", "Destination",
|
||||
"Port", "Proto", "SA(Address/Proto/Type/Direction)");
|
||||
return;
|
||||
}
|
||||
if (flags & RT_TFLAG) {
|
||||
printf("%-*.*s %-*.*s %-6.6s %6.6s %8.8s %6.6s %7.7s"
|
||||
" %s\n", WID_DST(paf), WID_DST(paf), "Destination",
|
||||
WID_GW(paf), WID_GW(paf), "Gateway",
|
||||
"Flags", "Refs", "Use", "Mtu", "Tag", "Interface");
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
#ifndef SMALL
|
||||
printf("%-*.*s %-*.*s %-6.6s %6.6s %8.8s %6.6s %s\n",
|
||||
WID_DST(paf), WID_DST(paf), "Destination",
|
||||
WID_GW(paf), WID_GW(paf), "Gateway",
|
||||
"Flags", "Refs", "Use", "Mtu", "Interface");
|
||||
#else
|
||||
printf("%-*.*s %-*.*s %-6.6s\n",
|
||||
WID_DST(paf), WID_DST(paf), "Destination",
|
||||
WID_GW(paf), WID_GW(paf), "Gateway",
|
||||
"Flags");
|
||||
#endif
|
||||
}
|
||||
|
||||
static void
|
||||
get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < RTAX_MAX; i++) {
|
||||
if (addrs & (1 << i)) {
|
||||
rti_info[i] = sa;
|
||||
sa = (struct sockaddr *)((char *)(sa) +
|
||||
RT_ROUNDUP(sa->sa_len));
|
||||
} else
|
||||
rti_info[i] = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Print a routing table entry.
|
||||
*/
|
||||
static void
|
||||
p_rtentry(struct rt_msghdr *rtm, int flags, int interesting)
|
||||
{
|
||||
static int old_af = -1;
|
||||
struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
|
||||
struct sockaddr *mask, *rti_info[RTAX_MAX];
|
||||
#ifndef SMALL
|
||||
char ifbuf[IF_NAMESIZE];
|
||||
#endif
|
||||
|
||||
if (old_af != sa->sa_family) {
|
||||
old_af = sa->sa_family;
|
||||
p_family(sa->sa_family);
|
||||
p_rthdr(sa->sa_family, flags);
|
||||
}
|
||||
get_rtaddrs(rtm->rtm_addrs, sa, rti_info);
|
||||
|
||||
mask = rti_info[RTAX_NETMASK];
|
||||
if ((sa = rti_info[RTAX_DST]) == NULL)
|
||||
return;
|
||||
|
||||
p_sockaddr(sa, mask, rtm->rtm_flags, WID_DST(sa->sa_family), flags);
|
||||
p_sockaddr(rti_info[RTAX_GATEWAY], NULL, RTF_HOST,
|
||||
WID_GW(sa->sa_family), flags);
|
||||
p_flags(rtm->rtm_flags & interesting);
|
||||
#if 0 /* XXX-elad */
|
||||
printf("%6d %8"PRId64" ", (int)rtm->rtm_rmx.rmx_refcnt,
|
||||
rtm->rtm_rmx.rmx_pksent);
|
||||
#else
|
||||
printf("%6s %8s ", "-", "-");
|
||||
#endif
|
||||
#ifndef SMALL
|
||||
if (rtm->rtm_rmx.rmx_mtu)
|
||||
printf("%6"PRId64, rtm->rtm_rmx.rmx_mtu);
|
||||
else
|
||||
printf("%6s", "-");
|
||||
putchar((rtm->rtm_rmx.rmx_locks & RTV_MTU) ? 'L' : ' ');
|
||||
if (flags & RT_TFLAG)
|
||||
p_tag(rti_info[RTAX_TAG]);
|
||||
printf(" %.16s", if_indextoname(rtm->rtm_index, ifbuf));
|
||||
putchar('\n');
|
||||
if (flags & RT_VFLAG)
|
||||
p_rtrmx(&rtm->rtm_rmx);
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* Print address family header before a section of the routing table.
|
||||
*/
|
||||
void
|
||||
p_family(int paf)
|
||||
{
|
||||
const char *afname;
|
||||
|
||||
switch (paf) {
|
||||
case AF_INET:
|
||||
afname = "Internet";
|
||||
break;
|
||||
#ifdef INET6
|
||||
case AF_INET6:
|
||||
afname = "Internet6";
|
||||
break;
|
||||
#endif
|
||||
case PF_KEY:
|
||||
afname = "Encap";
|
||||
break;
|
||||
case AF_APPLETALK:
|
||||
afname = "AppleTalk";
|
||||
break;
|
||||
#ifndef SMALL
|
||||
case AF_MPLS:
|
||||
afname = "MPLS";
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
afname = NULL;
|
||||
break;
|
||||
}
|
||||
if (afname)
|
||||
printf("\n%s:\n", afname);
|
||||
else
|
||||
printf("\nProtocol Family %d:\n", paf);
|
||||
}
|
||||
|
||||
void
|
||||
p_sockaddr(const struct sockaddr *sa, const struct sockaddr *mask, int rflags,
|
||||
int width, int flags)
|
||||
{
|
||||
char *cp;
|
||||
|
||||
switch (sa->sa_family) {
|
||||
#ifdef INET6
|
||||
case AF_INET6:
|
||||
{
|
||||
struct sockaddr_in6 sa6 = *(const struct sockaddr_in6 *)sa;
|
||||
|
||||
inet6_getscopeid(&sa6, INET6_IS_ADDR_LINKLOCAL|
|
||||
INET6_IS_ADDR_MC_LINKLOCAL);
|
||||
if (rflags & RTF_HOST)
|
||||
cp = routename((const struct sockaddr *)&sa6, flags);
|
||||
else
|
||||
cp = netname((const struct sockaddr *)&sa6, mask, flags);
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
default:
|
||||
if ((rflags & RTF_HOST) || mask == NULL)
|
||||
cp = routename(sa, flags);
|
||||
else
|
||||
cp = netname(sa, mask, flags);
|
||||
break;
|
||||
}
|
||||
if (width < 0)
|
||||
printf("%s", cp);
|
||||
else {
|
||||
if (flags & RT_NFLAG)
|
||||
printf("%-*s ", width, cp);
|
||||
else
|
||||
printf("%-*.*s ", width, width, cp);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
p_flags(int f)
|
||||
{
|
||||
char name[33], *flags;
|
||||
const struct bits *p = bits;
|
||||
|
||||
for (flags = name; p->b_mask && flags < &name[sizeof(name) - 2]; p++)
|
||||
if (p->b_mask & f)
|
||||
*flags++ = p->b_val;
|
||||
*flags = '\0';
|
||||
printf("%-6.6s ", name);
|
||||
}
|
||||
|
||||
#ifndef SMALL
|
||||
void
|
||||
p_rtrmx(const struct rt_metrics *rmx)
|
||||
{
|
||||
printf("\texpire %10"PRId64"%c recvpipe %10"PRIu64"%c "
|
||||
"sendpipe %10"PRIu64"%c\n",
|
||||
(int64_t)rmx->rmx_expire,
|
||||
(rmx->rmx_locks & RTV_EXPIRE) ? 'L' : ' ', rmx->rmx_recvpipe,
|
||||
(rmx->rmx_locks & RTV_RPIPE) ? 'L' : ' ', rmx->rmx_sendpipe,
|
||||
(rmx->rmx_locks & RTV_SPIPE) ? 'L' : ' ');
|
||||
printf("\tssthresh %10"PRIu64"%c rtt %10"PRIu64"%c "
|
||||
"rttvar %10"PRIu64"%c\n", rmx->rmx_ssthresh,
|
||||
(rmx->rmx_locks & RTV_SSTHRESH) ? 'L' : ' ',
|
||||
rmx->rmx_rtt, (rmx->rmx_locks & RTV_RTT) ? 'L' : ' ',
|
||||
rmx->rmx_rttvar, (rmx->rmx_locks & RTV_RTTVAR) ? 'L' : ' ');
|
||||
printf("\thopcount %10"PRIu64"%c\n",
|
||||
rmx->rmx_hopcount, (rmx->rmx_locks & RTV_HOPCOUNT) ? 'L' : ' ');
|
||||
}
|
||||
|
||||
static void
|
||||
p_tag(const struct sockaddr *sa)
|
||||
{
|
||||
char *line;
|
||||
|
||||
if (sa == NULL || sa->sa_family != AF_MPLS) {
|
||||
printf("%7s", "-");
|
||||
return;
|
||||
}
|
||||
line = mpls_ntoa(sa);
|
||||
if (strlen(line) < 7)
|
||||
printf("%7s", line);
|
||||
else
|
||||
printf("%s", line);
|
||||
}
|
||||
#endif
|
||||
|
||||
static char line[MAXHOSTNAMELEN];
|
||||
static char domain[MAXHOSTNAMELEN];
|
||||
|
||||
char *
|
||||
routename(const struct sockaddr *sa, int flags)
|
||||
{
|
||||
char *cp = NULL;
|
||||
static int first = 1;
|
||||
|
||||
if (first) {
|
||||
first = 0;
|
||||
if (gethostname(domain, sizeof(domain)) == 0 &&
|
||||
(cp = strchr(domain, '.')))
|
||||
(void)strlcpy(domain, cp + 1, sizeof(domain));
|
||||
else
|
||||
domain[0] = '\0';
|
||||
cp = NULL;
|
||||
}
|
||||
|
||||
if (sa->sa_len == 0) {
|
||||
(void)strlcpy(line, "default", sizeof(line));
|
||||
return (line);
|
||||
}
|
||||
|
||||
switch (sa->sa_family) {
|
||||
case AF_INET:
|
||||
return routename4(
|
||||
((const struct sockaddr_in *)sa)->sin_addr.s_addr,
|
||||
flags);
|
||||
#ifdef INET6
|
||||
case AF_INET6:
|
||||
{
|
||||
struct sockaddr_in6 sin6;
|
||||
|
||||
memset(&sin6, 0, sizeof(sin6));
|
||||
memcpy(&sin6, sa, sa->sa_len);
|
||||
sin6.sin6_len = sizeof(struct sockaddr_in6);
|
||||
sin6.sin6_family = AF_INET6;
|
||||
if (sa->sa_len == sizeof(struct sockaddr_in6))
|
||||
inet6_getscopeid(&sin6, INET6_IS_ADDR_LINKLOCAL|
|
||||
INET6_IS_ADDR_MC_LINKLOCAL);
|
||||
return routename6(&sin6, flags);
|
||||
}
|
||||
#endif
|
||||
case AF_LINK:
|
||||
return link_print(sa);
|
||||
|
||||
#ifndef SMALL
|
||||
case AF_MPLS:
|
||||
return mpls_ntoa(sa);
|
||||
|
||||
case AF_APPLETALK:
|
||||
(void)snprintf(line, sizeof(line), "atalk %d.%d",
|
||||
((const struct sockaddr_at *)sa)->sat_addr.s_net,
|
||||
((const struct sockaddr_at *)sa)->sat_addr.s_node);
|
||||
break;
|
||||
#endif
|
||||
|
||||
#if 0 /* XXX-elad */
|
||||
case AF_UNSPEC:
|
||||
if (sa->sa_len == sizeof(struct sockaddr_rtlabel)) {
|
||||
static char name[RTLABEL_LEN];
|
||||
struct sockaddr_rtlabel *sr;
|
||||
|
||||
sr = (struct sockaddr_rtlabel *)sa;
|
||||
strlcpy(name, sr->sr_label, sizeof(name));
|
||||
return (name);
|
||||
}
|
||||
/* FALLTHROUGH */
|
||||
#endif
|
||||
default:
|
||||
(void)snprintf(line, sizeof(line), "(%d) %s",
|
||||
sa->sa_family, any_ntoa(sa));
|
||||
break;
|
||||
}
|
||||
return (line);
|
||||
}
|
||||
|
||||
char *
|
||||
routename4(in_addr_t in, int flags)
|
||||
{
|
||||
const char *cp = NULL;
|
||||
struct in_addr ina;
|
||||
struct hostent *hp;
|
||||
|
||||
if (in == INADDR_ANY)
|
||||
cp = "default";
|
||||
if (!cp && (flags & RT_NFLAG) == 0) {
|
||||
if ((hp = gethostbyaddr((char *)&in,
|
||||
sizeof(in), AF_INET)) != NULL) {
|
||||
char *p;
|
||||
if ((p = strchr(hp->h_name, '.')) &&
|
||||
!strcmp(p + 1, domain))
|
||||
*p = '\0';
|
||||
cp = hp->h_name;
|
||||
}
|
||||
}
|
||||
ina.s_addr = in;
|
||||
strlcpy(line, cp ? cp : inet_ntoa(ina), sizeof(line));
|
||||
|
||||
return (line);
|
||||
}
|
||||
|
||||
#ifdef INET6
|
||||
char *
|
||||
routename6(const struct sockaddr_in6 *sin6, int flags)
|
||||
{
|
||||
int niflags = 0;
|
||||
|
||||
if ((flags & RT_NFLAG))
|
||||
niflags |= NI_NUMERICHOST;
|
||||
else
|
||||
niflags |= NI_NOFQDN;
|
||||
|
||||
if (getnameinfo((const struct sockaddr *)sin6, sin6->sin6_len,
|
||||
line, sizeof(line), NULL, 0, niflags) != 0)
|
||||
strncpy(line, "invalid", sizeof(line));
|
||||
|
||||
return (line);
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* 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 *
|
||||
netname4(in_addr_t in, in_addr_t mask, int flags)
|
||||
{
|
||||
const char *cp = NULL;
|
||||
struct netent *np = NULL;
|
||||
int mbits;
|
||||
|
||||
in = ntohl(in);
|
||||
mask = ntohl(mask);
|
||||
if (!(flags & RT_NFLAG) && in != INADDR_ANY) {
|
||||
if ((np = getnetbyaddr(in, AF_INET)) != NULL)
|
||||
cp = np->n_name;
|
||||
}
|
||||
mbits = mask ? 33 - ffs(mask) : 0;
|
||||
if (in == INADDR_ANY && !mbits)
|
||||
cp = "default";
|
||||
if (cp)
|
||||
strlcpy(line, cp, sizeof(line));
|
||||
#define C(x) ((x) & 0xff)
|
||||
else if (mbits < 9)
|
||||
snprintf(line, sizeof(line), "%u/%d", C(in >> 24), mbits);
|
||||
else if (mbits < 17)
|
||||
snprintf(line, sizeof(line), "%u.%u/%d",
|
||||
C(in >> 24) , C(in >> 16), mbits);
|
||||
else if (mbits < 25)
|
||||
snprintf(line, sizeof(line), "%u.%u.%u/%d",
|
||||
C(in >> 24), C(in >> 16), C(in >> 8), mbits);
|
||||
else
|
||||
snprintf(line, sizeof(line), "%u.%u.%u.%u/%d", C(in >> 24),
|
||||
C(in >> 16), C(in >> 8), C(in), mbits);
|
||||
#undef C
|
||||
return (line);
|
||||
}
|
||||
|
||||
#ifdef INET6
|
||||
char *
|
||||
netname6(const struct sockaddr_in6 *sa6, const struct sockaddr_in6 *mask, int flags)
|
||||
{
|
||||
struct sockaddr_in6 sin6;
|
||||
const u_char *p;
|
||||
int masklen, final = 0, illegal = 0;
|
||||
int i, lim, flag, error;
|
||||
char hbuf[NI_MAXHOST];
|
||||
|
||||
sin6 = *sa6;
|
||||
|
||||
flag = 0;
|
||||
masklen = 0;
|
||||
if (mask) {
|
||||
lim = mask->sin6_len - offsetof(struct sockaddr_in6, sin6_addr);
|
||||
if (lim < 0)
|
||||
lim = 0;
|
||||
else if (lim > (int)sizeof(struct in6_addr))
|
||||
lim = sizeof(struct in6_addr);
|
||||
for (p = (const u_char *)&mask->sin6_addr, i = 0; i < lim; p++) {
|
||||
if (final && *p) {
|
||||
illegal++;
|
||||
sin6.sin6_addr.s6_addr[i++] = 0x00;
|
||||
continue;
|
||||
}
|
||||
|
||||
switch (*p & 0xff) {
|
||||
case 0xff:
|
||||
masklen += 8;
|
||||
break;
|
||||
case 0xfe:
|
||||
masklen += 7;
|
||||
final++;
|
||||
break;
|
||||
case 0xfc:
|
||||
masklen += 6;
|
||||
final++;
|
||||
break;
|
||||
case 0xf8:
|
||||
masklen += 5;
|
||||
final++;
|
||||
break;
|
||||
case 0xf0:
|
||||
masklen += 4;
|
||||
final++;
|
||||
break;
|
||||
case 0xe0:
|
||||
masklen += 3;
|
||||
final++;
|
||||
break;
|
||||
case 0xc0:
|
||||
masklen += 2;
|
||||
final++;
|
||||
break;
|
||||
case 0x80:
|
||||
masklen += 1;
|
||||
final++;
|
||||
break;
|
||||
case 0x00:
|
||||
final++;
|
||||
break;
|
||||
default:
|
||||
final++;
|
||||
illegal++;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!illegal)
|
||||
sin6.sin6_addr.s6_addr[i++] &= *p;
|
||||
else
|
||||
sin6.sin6_addr.s6_addr[i++] = 0x00;
|
||||
}
|
||||
while (i < (int)sizeof(struct in6_addr))
|
||||
sin6.sin6_addr.s6_addr[i++] = 0x00;
|
||||
} else
|
||||
masklen = 128;
|
||||
|
||||
if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr)) {
|
||||
snprintf(line, sizeof(line), "default");
|
||||
return (line);
|
||||
}
|
||||
|
||||
if (illegal)
|
||||
warnx("illegal prefixlen");
|
||||
|
||||
if (flags & RT_NFLAG)
|
||||
flag |= NI_NUMERICHOST;
|
||||
error = getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
|
||||
hbuf, sizeof(hbuf), NULL, 0, flag);
|
||||
if (error)
|
||||
snprintf(hbuf, sizeof(hbuf), "invalid");
|
||||
|
||||
snprintf(line, sizeof(line), "%s/%d", hbuf, masklen);
|
||||
return (line);
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* 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(const struct sockaddr *sa, const struct sockaddr *mask, int flags)
|
||||
{
|
||||
switch (sa->sa_family) {
|
||||
|
||||
case AF_INET:
|
||||
return netname4(((const struct sockaddr_in *)sa)->sin_addr.s_addr,
|
||||
((const struct sockaddr_in *)mask)->sin_addr.s_addr, flags);
|
||||
#ifdef INET6
|
||||
case AF_INET6:
|
||||
return netname6((const struct sockaddr_in6 *)sa,
|
||||
(const struct sockaddr_in6 *)mask, flags);
|
||||
#endif
|
||||
case AF_LINK:
|
||||
return link_print(sa);
|
||||
default:
|
||||
snprintf(line, sizeof(line), "af %d: %s",
|
||||
sa->sa_family, any_ntoa(sa));
|
||||
break;
|
||||
}
|
||||
return (line);
|
||||
}
|
||||
|
||||
static const char hexlist[] = "0123456789abcdef";
|
||||
|
||||
char *
|
||||
any_ntoa(const struct sockaddr *sa)
|
||||
{
|
||||
static char obuf[240];
|
||||
const char *in = sa->sa_data;
|
||||
char *out = obuf;
|
||||
int len = sa->sa_len - offsetof(struct sockaddr, sa_data);
|
||||
|
||||
*out++ = 'Q';
|
||||
do {
|
||||
*out++ = hexlist[(*in >> 4) & 15];
|
||||
*out++ = hexlist[(*in++) & 15];
|
||||
*out++ = '.';
|
||||
} while (--len > 0 && (out + 3) < &obuf[sizeof(obuf) - 1]);
|
||||
out[-1] = '\0';
|
||||
return (obuf);
|
||||
}
|
||||
|
||||
static char *
|
||||
link_print(const struct sockaddr *sa)
|
||||
{
|
||||
const struct sockaddr_dl *sdl = (const struct sockaddr_dl *)sa;
|
||||
const u_char *lla = (const u_char *)sdl->sdl_data + sdl->sdl_nlen;
|
||||
|
||||
if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
|
||||
sdl->sdl_slen == 0) {
|
||||
(void)snprintf(line, sizeof(line), "link#%d", sdl->sdl_index);
|
||||
return (line);
|
||||
}
|
||||
switch (sdl->sdl_type) {
|
||||
case IFT_ETHER:
|
||||
case IFT_CARP:
|
||||
return ether_ntoa((const struct ether_addr *)lla);
|
||||
default:
|
||||
return link_ntoa(sdl);
|
||||
}
|
||||
}
|
||||
|
||||
#ifndef SMALL
|
||||
char *
|
||||
mpls_ntoa(const struct sockaddr *sa)
|
||||
{
|
||||
static char obuf[16];
|
||||
size_t olen;
|
||||
const union mpls_shim *pms;
|
||||
union mpls_shim ms;
|
||||
int psize = sizeof(struct sockaddr_mpls);
|
||||
|
||||
pms = &((const struct sockaddr_mpls*)sa)->smpls_addr;
|
||||
ms.s_addr = ntohl(pms->s_addr);
|
||||
|
||||
snprintf(obuf, sizeof(obuf), "%u", ms.shim.label);
|
||||
|
||||
while(psize < sa->sa_len) {
|
||||
pms++;
|
||||
ms.s_addr = ntohl(pms->s_addr);
|
||||
olen = strlen(obuf);
|
||||
snprintf(obuf + olen, sizeof(obuf) - olen, ",%u",
|
||||
ms.shim.label);
|
||||
psize+=sizeof(ms);
|
||||
}
|
||||
return obuf;
|
||||
}
|
||||
#endif
|
||||
|
||||
void
|
||||
p_addr(const struct sockaddr *sa, const struct sockaddr *mask, int rflags, int flags)
|
||||
{
|
||||
p_sockaddr(sa, mask, rflags, WID_DST(sa->sa_family), flags);
|
||||
}
|
||||
|
||||
void
|
||||
p_gwaddr(const struct sockaddr *sa, int gwaf, int flags)
|
||||
{
|
||||
p_sockaddr(sa, 0, RTF_HOST, WID_GW(gwaf), flags);
|
||||
}
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
/*-
|
||||
* Copyright (c) 2013 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Christos Zoulas.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
||||
*/
|
||||
|
||||
#define RT_AFLAG 1
|
||||
#define RT_TFLAG 2
|
||||
#define RT_VFLAG 4
|
||||
#define RT_NFLAG 8
|
||||
|
||||
void p_rttables(int, int, int, int);
|
||||
void p_rthdr(int, int);
|
||||
void p_family(int);
|
||||
void p_sockaddr(const struct sockaddr *, const struct sockaddr *, int, int, int);
|
||||
void p_flags(int);
|
||||
struct rt_metrics;
|
||||
void p_rtrmx(const struct rt_metrics *);
|
||||
void p_addr(const struct sockaddr *sa, const struct sockaddr *mask, int, int);
|
||||
void p_gwaddr(const struct sockaddr *sa, int, int);
|
||||
|
||||
char *routename(const struct sockaddr *sa, int);
|
||||
char *routename4(in_addr_t, int);
|
||||
#ifdef INET6
|
||||
char *routename6(const struct sockaddr_in6 *, int);
|
||||
char *netname6(const struct sockaddr_in6 *, const struct sockaddr_in6 *, int);
|
||||
#endif
|
||||
char *netname(const struct sockaddr *, const struct sockaddr *, int);
|
||||
char *netname4(in_addr_t, in_addr_t, int);
|
||||
|
||||
char *mpls_ntoa(const struct sockaddr *);
|
||||
char *any_ntoa(const struct sockaddr *);
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: show.c,v 1.45 2013/03/01 18:25:17 joerg Exp $ */
|
||||
/* $NetBSD: show.c,v 1.46 2014/11/06 21:29:32 christos Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1983, 1988, 1993
|
||||
|
|
@ -34,7 +34,7 @@
|
|||
#if 0
|
||||
static char sccsid[] = "from: @(#)route.c 8.3 (Berkeley) 3/9/94";
|
||||
#else
|
||||
__RCSID("$NetBSD: show.c,v 1.45 2013/03/01 18:25:17 joerg Exp $");
|
||||
__RCSID("$NetBSD: show.c,v 1.46 2014/11/06 21:29:32 christos Exp $");
|
||||
#endif
|
||||
#endif /* not lint */
|
||||
|
||||
|
|
@ -62,44 +62,10 @@ __RCSID("$NetBSD: show.c,v 1.45 2013/03/01 18:25:17 joerg Exp $");
|
|||
#include <err.h>
|
||||
|
||||
#include "keywords.h"
|
||||
#include "rtutil.h"
|
||||
#include "extern.h"
|
||||
#include "prog_ops.h"
|
||||
|
||||
|
||||
/*
|
||||
* Definitions for showing gateway flags.
|
||||
*/
|
||||
struct bits {
|
||||
int b_mask;
|
||||
char b_val;
|
||||
};
|
||||
static const struct bits 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_MASK, 'm' }, /* Mask Present -- for routing messages only */
|
||||
{ RTF_CLONING, 'C' },
|
||||
{ RTF_XRESOLVE, 'X' },
|
||||
{ RTF_LLINFO, 'L' },
|
||||
{ RTF_STATIC, 'S' },
|
||||
{ RTF_BLACKHOLE, 'B' },
|
||||
{ RTF_CLONED, 'c' },
|
||||
{ RTF_PROTO1, '1' },
|
||||
{ RTF_PROTO2, '2' },
|
||||
{ RTF_ANNOUNCE, 'p' },
|
||||
{ 0, '\0' }
|
||||
};
|
||||
|
||||
static void pr_rthdr(int);
|
||||
static void p_rtentry(struct rt_msghdr *);
|
||||
static void pr_family(int);
|
||||
static void p_sockaddr(struct sockaddr *, struct sockaddr *, int, int );
|
||||
static void p_flags(int);
|
||||
|
||||
void
|
||||
parse_show_opts(int argc, char * const *argv, int *afp, int *flagsp,
|
||||
const char **afnamep, bool nolink)
|
||||
|
|
@ -167,261 +133,12 @@ parse_show_opts(int argc, char * const *argv, int *afp, int *flagsp,
|
|||
* Print routing tables.
|
||||
*/
|
||||
void
|
||||
show(int argc, char *const *argv)
|
||||
show(int argc, char *const *argv, int flags)
|
||||
{
|
||||
size_t needed;
|
||||
int af, flags, mib[6];
|
||||
char *buf, *next, *lim;
|
||||
struct rt_msghdr *rtm;
|
||||
struct sockaddr *sa;
|
||||
|
||||
parse_show_opts(argc, argv, &af, &flags, NULL, true);
|
||||
mib[0] = CTL_NET;
|
||||
mib[1] = PF_ROUTE;
|
||||
mib[2] = 0;
|
||||
mib[3] = 0;
|
||||
mib[4] = NET_RT_DUMP;
|
||||
mib[5] = 0;
|
||||
if (prog_sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
|
||||
err(EXIT_FAILURE, "route-sysctl-estimate");
|
||||
buf = lim = NULL;
|
||||
if (needed) {
|
||||
if ((buf = malloc(needed)) == 0)
|
||||
err(EXIT_FAILURE, "malloc");
|
||||
if (prog_sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
|
||||
err(EXIT_FAILURE, "sysctl of routing table");
|
||||
lim = buf + needed;
|
||||
}
|
||||
|
||||
printf("Routing table%s\n", (af == AF_UNSPEC)? "s" : "");
|
||||
|
||||
if (needed) {
|
||||
for (next = buf; next < lim; next += rtm->rtm_msglen) {
|
||||
rtm = (struct rt_msghdr *)next;
|
||||
sa = (struct sockaddr *)(rtm + 1);
|
||||
if ((rtm->rtm_flags & flags) != flags)
|
||||
continue;
|
||||
if (af == AF_UNSPEC || af == sa->sa_family)
|
||||
p_rtentry(rtm);
|
||||
}
|
||||
free(buf);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* 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
|
||||
/* width of destination/gateway column */
|
||||
#if 1
|
||||
/* strlen("fe80::aaaa:bbbb:cccc:dddd@gif0") == 30, strlen("/128") == 4 */
|
||||
#define WID_DST(af) ((af) == AF_INET6 ? (nflag ? 34 : 18) : 18)
|
||||
#define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 30 : 18) : 18)
|
||||
#else
|
||||
/* strlen("fe80::aaaa:bbbb:cccc:dddd") == 25, strlen("/128") == 4 */
|
||||
#define WID_DST(af) ((af) == AF_INET6 ? (nflag ? 29 : 18) : 18)
|
||||
#define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 25 : 18) : 18)
|
||||
#endif
|
||||
#endif /* INET6 */
|
||||
|
||||
/*
|
||||
* Print header for routing table columns.
|
||||
*/
|
||||
static void
|
||||
pr_rthdr(int af)
|
||||
{
|
||||
|
||||
printf("%-*.*s %-*.*s %-6.6s\n",
|
||||
WID_DST(af), WID_DST(af), "Destination",
|
||||
WID_GW(af), WID_GW(af), "Gateway",
|
||||
"Flags");
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Print a routing table entry.
|
||||
*/
|
||||
static void
|
||||
p_rtentry(struct rt_msghdr *rtm)
|
||||
{
|
||||
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 |
|
||||
int af, rflags;
|
||||
static int interesting = RTF_UP | RTF_GATEWAY | RTF_HOST |
|
||||
RTF_REJECT | RTF_LLINFO;
|
||||
|
||||
#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 (old_af != af) {
|
||||
old_af = af;
|
||||
pr_family(af);
|
||||
pr_rthdr(af);
|
||||
}
|
||||
if (rtm->rtm_addrs == RTA_DST)
|
||||
p_sockaddr(sa, NULL, 0, WID_DST(af) + 1 + WID_GW(af) + 1);
|
||||
else {
|
||||
struct sockaddr *nm;
|
||||
|
||||
if ((rtm->rtm_addrs & RTA_NETMASK) == 0)
|
||||
nm = NULL;
|
||||
else {
|
||||
/* skip to gateway */
|
||||
nm = (struct sockaddr *)
|
||||
(RT_ROUNDUP(sa->sa_len) + (char *)sa);
|
||||
/* skip over gateway to netmask */
|
||||
nm = (struct sockaddr *)
|
||||
(RT_ROUNDUP(nm->sa_len) + (char *)nm);
|
||||
}
|
||||
|
||||
p_sockaddr(sa, nm, rtm->rtm_flags, WID_DST(af));
|
||||
sa = (struct sockaddr *)(RT_ROUNDUP(sa->sa_len) + (char *)sa);
|
||||
p_sockaddr(sa, NULL, 0, WID_GW(af));
|
||||
}
|
||||
p_flags(rtm->rtm_flags & interesting);
|
||||
putchar('\n');
|
||||
parse_show_opts(argc, argv, &af, &rflags, NULL, true);
|
||||
p_rttables(af, flags, rflags, interesting);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Print address family header before a section of the routing table.
|
||||
*/
|
||||
static void
|
||||
pr_family(int af)
|
||||
{
|
||||
const char *afname;
|
||||
|
||||
switch (af) {
|
||||
case AF_INET:
|
||||
afname = "Internet";
|
||||
break;
|
||||
#ifdef INET6
|
||||
case AF_INET6:
|
||||
afname = "Internet6";
|
||||
break;
|
||||
#endif /* INET6 */
|
||||
#ifndef SMALL
|
||||
case AF_MPLS:
|
||||
afname = "MPLS";
|
||||
break;
|
||||
#endif /* SMALL */
|
||||
case AF_APPLETALK:
|
||||
afname = "AppleTalk";
|
||||
break;
|
||||
default:
|
||||
afname = NULL;
|
||||
break;
|
||||
}
|
||||
if (afname)
|
||||
printf("\n%s:\n", afname);
|
||||
else
|
||||
printf("\nProtocol Family %d:\n", af);
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
p_sockaddr(struct sockaddr *sa, struct sockaddr *nm, int flags, int width)
|
||||
{
|
||||
char workbuf[128];
|
||||
const char *cp;
|
||||
|
||||
switch(sa->sa_family) {
|
||||
|
||||
case AF_LINK:
|
||||
if (getnameinfo(sa, sa->sa_len, workbuf, sizeof(workbuf),
|
||||
NULL, 0, NI_NUMERICHOST) != 0)
|
||||
strlcpy(workbuf, "invalid", sizeof(workbuf));
|
||||
cp = workbuf;
|
||||
break;
|
||||
|
||||
case AF_INET:
|
||||
cp = routename(sa, nm, flags);
|
||||
break;
|
||||
|
||||
#ifdef INET6
|
||||
case AF_INET6:
|
||||
cp = routename(sa, nm, flags);
|
||||
/* make sure numeric address is not truncated */
|
||||
if (strchr(cp, ':') != NULL && (int)strlen(cp) > width)
|
||||
width = strlen(cp);
|
||||
break;
|
||||
#endif /* INET6 */
|
||||
|
||||
#ifndef SMALL
|
||||
case AF_MPLS:
|
||||
{
|
||||
struct sockaddr_mpls *smpls = (struct sockaddr_mpls *)sa;
|
||||
union mpls_shim ms;
|
||||
|
||||
ms.s_addr = ntohl(smpls->smpls_addr.s_addr);
|
||||
|
||||
snprintf(workbuf, sizeof(workbuf), "%u",
|
||||
ms.shim.label);
|
||||
cp = workbuf;
|
||||
}
|
||||
break;
|
||||
case AF_APPLETALK:
|
||||
if (getnameinfo(sa, sa->sa_len, workbuf, sizeof(workbuf),
|
||||
NULL, 0, NI_NUMERICHOST) != 0)
|
||||
strlcpy(workbuf, "invalid", sizeof(workbuf));
|
||||
cp = workbuf;
|
||||
break;
|
||||
|
||||
#endif /* SMALL */
|
||||
|
||||
default:
|
||||
{
|
||||
u_char *s = (u_char *)sa->sa_data, *slim;
|
||||
char *wp = workbuf, *wplim;
|
||||
|
||||
slim = sa->sa_len + (u_char *)sa;
|
||||
wplim = wp + sizeof(workbuf) - 6;
|
||||
wp += snprintf(wp, wplim - wp, "(%d)", sa->sa_family);
|
||||
while (s < slim && wp < wplim) {
|
||||
wp += snprintf(wp, wplim - wp, " %02x", *s++);
|
||||
if (s < slim)
|
||||
wp += snprintf(wp, wplim - wp, "%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(int f)
|
||||
{
|
||||
char name[33], *flags;
|
||||
const struct bits *p = bits;
|
||||
|
||||
for (flags = name; p->b_mask; p++)
|
||||
if (p->b_mask & f)
|
||||
*flags++ = p->b_val;
|
||||
else if (Sflag)
|
||||
*flags++ = ' ';
|
||||
*flags = '\0';
|
||||
printf("%-6.6s ", name);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue