780 lines
18 KiB
C
780 lines
18 KiB
C
/*-
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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if 0
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#ifndef lint
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static char sccsid[] = "From: @(#)route.c 8.6 (Berkeley) 4/28/95";
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/sysctl.h>
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#include <sys/time.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_types.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netgraph/ng_socket.h>
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#include <arpa/inet.h>
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#include <ifaddrs.h>
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#include <libutil.h>
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#include <netdb.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <string.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include <err.h>
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#include <libxo/xo.h>
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#include "netstat.h"
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#include "nl_defs.h"
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/*
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* Definitions for showing gateway flags.
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*/
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static struct bits {
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u_long b_mask;
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char b_val;
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const char *b_name;
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} bits[] = {
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{ RTF_UP, 'U', "up" },
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{ RTF_GATEWAY, 'G', "gateway" },
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{ RTF_HOST, 'H', "host" },
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{ RTF_REJECT, 'R', "reject" },
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{ RTF_DYNAMIC, 'D', "dynamic" },
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{ RTF_MODIFIED, 'M', "modified" },
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{ RTF_DONE, 'd', "done" }, /* Completed -- for routing msgs only */
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{ RTF_XRESOLVE, 'X', "xresolve" },
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{ RTF_STATIC, 'S', "static" },
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{ RTF_PROTO1, '1', "proto1" },
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{ RTF_PROTO2, '2', "proto2" },
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{ RTF_PROTO3, '3', "proto3" },
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{ RTF_BLACKHOLE,'B', "blackhole" },
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{ RTF_BROADCAST,'b', "broadcast" },
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#ifdef RTF_LLINFO
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{ RTF_LLINFO, 'L', "llinfo" },
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#endif
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{ 0 , 0, NULL }
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};
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struct ifmap_entry {
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char ifname[IFNAMSIZ];
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};
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static struct ifmap_entry *ifmap;
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static int ifmap_size;
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static struct timespec uptime;
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static const char *netname4(in_addr_t, in_addr_t);
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static const char *netname6(struct sockaddr_in6 *, struct sockaddr_in6 *);
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static void p_rtable_sysctl(int, int);
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static void p_rtentry_sysctl(const char *name, struct rt_msghdr *);
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static void p_sockaddr(const char *name, struct sockaddr *, struct sockaddr *,
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int, int);
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static const char *fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask,
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int flags);
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static void p_flags(int, const char *);
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static const char *fmt_flags(int f);
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static void domask(char *, in_addr_t, u_long);
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/*
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* Print routing tables.
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*/
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void
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routepr(int fibnum, int af)
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{
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size_t intsize;
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int numfibs;
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if (live == 0)
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return;
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intsize = sizeof(int);
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if (fibnum == -1 &&
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sysctlbyname("net.my_fibnum", &fibnum, &intsize, NULL, 0) == -1)
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fibnum = 0;
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if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1)
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numfibs = 1;
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if (fibnum < 0 || fibnum > numfibs - 1)
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errx(EX_USAGE, "%d: invalid fib", fibnum);
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/*
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* Since kernel & userland use different timebase
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* (time_uptime vs time_second) and we are reading kernel memory
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* directly we should do rt_expire --> expire_time conversion.
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*/
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if (clock_gettime(CLOCK_UPTIME, &uptime) < 0)
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err(EX_OSERR, "clock_gettime() failed");
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xo_open_container("route-information");
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xo_emit("{T:Routing tables}");
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if (fibnum)
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xo_emit(" ({L:fib}: {:fib/%d})", fibnum);
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xo_emit("\n");
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p_rtable_sysctl(fibnum, af);
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xo_close_container("route-information");
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}
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/*
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* Print address family header before a section of the routing table.
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*/
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void
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pr_family(int af1)
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{
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const char *afname;
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switch (af1) {
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case AF_INET:
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afname = "Internet";
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break;
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#ifdef INET6
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case AF_INET6:
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afname = "Internet6";
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break;
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#endif /*INET6*/
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case AF_ISO:
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afname = "ISO";
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break;
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case AF_CCITT:
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afname = "X.25";
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break;
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case AF_NETGRAPH:
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afname = "Netgraph";
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break;
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default:
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afname = NULL;
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break;
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}
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if (afname)
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xo_emit("\n{k:address-family/%s}:\n", afname);
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else
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xo_emit("\n{L:Protocol Family} {k:address-family/%d}:\n", af1);
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}
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/* column widths; each followed by one space */
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#ifndef INET6
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#define WID_DST_DEFAULT(af) 18 /* width of destination column */
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#define WID_GW_DEFAULT(af) 18 /* width of gateway column */
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#define WID_IF_DEFAULT(af) (Wflag ? 10 : 8) /* width of netif column */
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#else
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#define WID_DST_DEFAULT(af) \
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((af) == AF_INET6 ? (numeric_addr ? 33: 18) : 18)
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#define WID_GW_DEFAULT(af) \
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((af) == AF_INET6 ? (numeric_addr ? 29 : 18) : 18)
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#define WID_IF_DEFAULT(af) ((af) == AF_INET6 ? 8 : (Wflag ? 10 : 8))
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#endif /*INET6*/
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static int wid_dst;
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static int wid_gw;
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static int wid_flags;
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static int wid_pksent;
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static int wid_mtu;
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static int wid_if;
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static int wid_expire;
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/*
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* Print header for routing table columns.
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*/
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static void
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pr_rthdr(int af1 __unused)
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{
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if (Wflag) {
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xo_emit("{T:/%-*.*s} {T:/%-*.*s} {T:/%-*.*s} {T:/%*.*s} "
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"{T:/%*.*s} {T:/%*.*s} {T:/%*s}\n",
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wid_dst, wid_dst, "Destination",
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wid_gw, wid_gw, "Gateway",
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wid_flags, wid_flags, "Flags",
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wid_pksent, wid_pksent, "Use",
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wid_mtu, wid_mtu, "Mtu",
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wid_if, wid_if, "Netif",
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wid_expire, "Expire");
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} else {
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xo_emit("{T:/%-*.*s} {T:/%-*.*s} {T:/%-*.*s} {T:/%*.*s} "
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"{T:/%*s}\n",
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wid_dst, wid_dst, "Destination",
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wid_gw, wid_gw, "Gateway",
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wid_flags, wid_flags, "Flags",
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wid_if, wid_if, "Netif",
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wid_expire, "Expire");
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}
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}
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static void
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p_rtable_sysctl(int fibnum, int af)
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{
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size_t needed;
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int mib[7];
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char *buf, *next, *lim;
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struct rt_msghdr *rtm;
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struct sockaddr *sa;
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int fam = AF_UNSPEC, ifindex = 0, size;
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int need_table_close = false;
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struct ifaddrs *ifap, *ifa;
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struct sockaddr_dl *sdl;
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/*
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* Retrieve interface list at first
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* since we need #ifindex -> if_xname match
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*/
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if (getifaddrs(&ifap) != 0)
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err(EX_OSERR, "getifaddrs");
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for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
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if (ifa->ifa_addr->sa_family != AF_LINK)
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continue;
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sdl = (struct sockaddr_dl *)ifa->ifa_addr;
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ifindex = sdl->sdl_index;
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if (ifindex >= ifmap_size) {
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size = roundup(ifindex + 1, 32) *
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sizeof(struct ifmap_entry);
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if ((ifmap = realloc(ifmap, size)) == NULL)
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errx(2, "realloc(%d) failed", size);
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memset(&ifmap[ifmap_size], 0,
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size - ifmap_size *
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sizeof(struct ifmap_entry));
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ifmap_size = roundup(ifindex + 1, 32);
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}
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if (*ifmap[ifindex].ifname != '\0')
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continue;
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strlcpy(ifmap[ifindex].ifname, ifa->ifa_name, IFNAMSIZ);
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}
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freeifaddrs(ifap);
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mib[0] = CTL_NET;
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mib[1] = PF_ROUTE;
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mib[2] = 0;
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mib[3] = af;
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mib[4] = NET_RT_DUMP;
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mib[5] = 0;
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mib[6] = fibnum;
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if (sysctl(mib, nitems(mib), NULL, &needed, NULL, 0) < 0)
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err(EX_OSERR, "sysctl: net.route.0.%d.dump.%d estimate", af,
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fibnum);
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if ((buf = malloc(needed)) == NULL)
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errx(2, "malloc(%lu)", (unsigned long)needed);
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if (sysctl(mib, nitems(mib), buf, &needed, NULL, 0) < 0)
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err(1, "sysctl: net.route.0.%d.dump.%d", af, fibnum);
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lim = buf + needed;
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xo_open_container("route-table");
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xo_open_list("rt-family");
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for (next = buf; next < lim; next += rtm->rtm_msglen) {
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rtm = (struct rt_msghdr *)next;
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if (rtm->rtm_version != RTM_VERSION)
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continue;
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/*
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* Peek inside header to determine AF
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*/
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sa = (struct sockaddr *)(rtm + 1);
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/* Only print family first time. */
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if (fam != sa->sa_family) {
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if (need_table_close) {
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xo_close_list("rt-entry");
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xo_close_instance("rt-family");
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}
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need_table_close = true;
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fam = sa->sa_family;
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wid_dst = WID_DST_DEFAULT(fam);
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wid_gw = WID_GW_DEFAULT(fam);
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wid_flags = 6;
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wid_pksent = 8;
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wid_mtu = 6;
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wid_if = WID_IF_DEFAULT(fam);
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wid_expire = 6;
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xo_open_instance("rt-family");
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pr_family(fam);
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xo_open_list("rt-entry");
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pr_rthdr(fam);
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}
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p_rtentry_sysctl("rt-entry", rtm);
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}
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if (need_table_close) {
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xo_close_list("rt-entry");
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xo_close_instance("rt-family");
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}
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xo_close_list("rt-family");
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xo_close_container("route-table");
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free(buf);
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}
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static void
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p_rtentry_sysctl(const char *name, struct rt_msghdr *rtm)
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{
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struct sockaddr *sa, *addr[RTAX_MAX];
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char buffer[128];
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char prettyname[128];
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int i;
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xo_open_instance(name);
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sa = (struct sockaddr *)(rtm + 1);
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for (i = 0; i < RTAX_MAX; i++) {
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if (rtm->rtm_addrs & (1 << i))
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addr[i] = sa;
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sa = (struct sockaddr *)((char *)sa + SA_SIZE(sa));
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}
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p_sockaddr("destination", addr[RTAX_DST], addr[RTAX_NETMASK],
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rtm->rtm_flags, wid_dst);
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p_sockaddr("gateway", addr[RTAX_GATEWAY], NULL, RTF_HOST, wid_gw);
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snprintf(buffer, sizeof(buffer), "{[:-%d}{:flags/%%s}{]:} ",
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wid_flags);
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p_flags(rtm->rtm_flags, buffer);
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if (Wflag) {
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xo_emit("{t:use/%*lu} ", wid_pksent, rtm->rtm_rmx.rmx_pksent);
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if (rtm->rtm_rmx.rmx_mtu != 0)
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xo_emit("{t:mtu/%*lu} ", wid_mtu, rtm->rtm_rmx.rmx_mtu);
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else
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xo_emit("{P:/%*s} ", wid_mtu, "");
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}
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memset(prettyname, 0, sizeof(prettyname));
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if (rtm->rtm_index < ifmap_size) {
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strlcpy(prettyname, ifmap[rtm->rtm_index].ifname,
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sizeof(prettyname));
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if (*prettyname == '\0')
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strlcpy(prettyname, "---", sizeof(prettyname));
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}
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xo_emit("{t:interface-name/%*.*s}", wid_if, wid_if, prettyname);
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if (rtm->rtm_rmx.rmx_expire) {
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time_t expire_time;
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if ((expire_time = rtm->rtm_rmx.rmx_expire - uptime.tv_sec) > 0)
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xo_emit(" {:expire-time/%*d}", wid_expire,
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(int)expire_time);
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}
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xo_emit("\n");
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xo_close_instance(name);
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}
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static void
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p_sockaddr(const char *name, struct sockaddr *sa, struct sockaddr *mask,
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int flags, int width)
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{
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const char *cp;
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char buf[128];
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cp = fmt_sockaddr(sa, mask, flags);
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if (width < 0) {
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snprintf(buf, sizeof(buf), "{:%s/%%s} ", name);
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xo_emit(buf, cp);
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} else {
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if (Wflag != 0 || numeric_addr) {
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snprintf(buf, sizeof(buf), "{[:%d}{:%s/%%s}{]:} ",
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-width, name);
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xo_emit(buf, cp);
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} else {
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snprintf(buf, sizeof(buf), "{[:%d}{:%s/%%-.*s}{]:} ",
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-width, name);
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xo_emit(buf, width, cp);
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}
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}
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}
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static const char *
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fmt_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags)
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{
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static char buf[128];
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const char *cp;
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if (sa == NULL)
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return ("null");
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switch(sa->sa_family) {
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#ifdef INET6
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case AF_INET6:
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/*
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* The sa6->sin6_scope_id must be filled here because
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* this sockaddr is extracted from kmem(4) directly
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* and has KAME-specific embedded scope id in
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* sa6->sin6_addr.s6_addr[2].
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*/
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in6_fillscopeid(satosin6(sa));
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/* FALLTHROUGH */
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#endif /*INET6*/
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case AF_INET:
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if (flags & RTF_HOST)
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cp = routename(sa, numeric_addr);
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else if (mask)
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cp = netname(sa, mask);
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else
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cp = netname(sa, NULL);
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break;
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case AF_NETGRAPH:
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{
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strlcpy(buf, ((struct sockaddr_ng *)sa)->sg_data,
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sizeof(buf));
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cp = buf;
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break;
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}
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case AF_LINK:
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{
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#if 0
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struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
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/* Interface route. */
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if (sdl->sdl_nlen)
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cp = sdl->sdl_data;
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else
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#endif
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cp = routename(sa, 1);
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break;
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}
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default:
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{
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u_char *s = (u_char *)sa->sa_data, *slim;
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char *cq, *cqlim;
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cq = buf;
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slim = sa->sa_len + (u_char *) sa;
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cqlim = cq + sizeof(buf) - 6;
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cq += sprintf(cq, "(%d)", sa->sa_family);
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while (s < slim && cq < cqlim) {
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cq += sprintf(cq, " %02x", *s++);
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if (s < slim)
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cq += sprintf(cq, "%02x", *s++);
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}
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cp = buf;
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}
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}
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return (cp);
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}
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static void
|
|
p_flags(int f, const char *format)
|
|
{
|
|
struct bits *p;
|
|
|
|
xo_emit(format, fmt_flags(f));
|
|
|
|
xo_open_list("flags_pretty");
|
|
for (p = bits; p->b_mask; p++)
|
|
if (p->b_mask & f)
|
|
xo_emit("{le:flags_pretty/%s}", p->b_name);
|
|
xo_close_list("flags_pretty");
|
|
}
|
|
|
|
static const char *
|
|
fmt_flags(int f)
|
|
{
|
|
static char name[33];
|
|
char *flags;
|
|
struct bits *p = bits;
|
|
|
|
for (flags = name; p->b_mask; p++)
|
|
if (p->b_mask & f)
|
|
*flags++ = p->b_val;
|
|
*flags = '\0';
|
|
return (name);
|
|
}
|
|
|
|
char *
|
|
routename(struct sockaddr *sa, int flags)
|
|
{
|
|
static char line[NI_MAXHOST];
|
|
int error, f;
|
|
|
|
/* XXX: sa->sa_len doesn't match sizeof(struct sockaddr_dl) */
|
|
if (sa->sa_family == AF_LINK)
|
|
sa->sa_len = sizeof(struct sockaddr_dl);
|
|
|
|
f = (flags) ? NI_NUMERICHOST : 0;
|
|
error = getnameinfo(sa, sa->sa_len, line, sizeof(line),
|
|
NULL, 0, f);
|
|
if (error) {
|
|
const void *src;
|
|
switch (sa->sa_family) {
|
|
#ifdef INET
|
|
case AF_INET:
|
|
src = &satosin(sa)->sin_addr;
|
|
break;
|
|
#endif /* INET */
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
src = &satosin6(sa)->sin6_addr;
|
|
break;
|
|
#endif /* INET6 */
|
|
default:
|
|
return(line);
|
|
}
|
|
inet_ntop(sa->sa_family, src, line, sizeof(line) - 1);
|
|
return (line);
|
|
}
|
|
trimdomain(line, strlen(line));
|
|
|
|
return (line);
|
|
}
|
|
|
|
#define NSHIFT(m) ( \
|
|
(m) == IN_CLASSA_NET ? IN_CLASSA_NSHIFT : \
|
|
(m) == IN_CLASSB_NET ? IN_CLASSB_NSHIFT : \
|
|
(m) == IN_CLASSC_NET ? IN_CLASSC_NSHIFT : \
|
|
0)
|
|
|
|
static void
|
|
domask(char *dst, in_addr_t addr __unused, u_long mask)
|
|
{
|
|
int b, i;
|
|
|
|
if (mask == 0) {
|
|
*dst = '\0';
|
|
return;
|
|
}
|
|
i = 0;
|
|
for (b = 0; b < 32; b++)
|
|
if (mask & (1 << b)) {
|
|
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.
|
|
*/
|
|
const char *
|
|
netname(struct sockaddr *sa, struct sockaddr *mask)
|
|
{
|
|
switch (sa->sa_family) {
|
|
case AF_INET:
|
|
if (mask != NULL)
|
|
return (netname4(satosin(sa)->sin_addr.s_addr,
|
|
satosin(mask)->sin_addr.s_addr));
|
|
else
|
|
return (netname4(satosin(sa)->sin_addr.s_addr,
|
|
INADDR_ANY));
|
|
break;
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
return (netname6(satosin6(sa), satosin6(mask)));
|
|
#endif /* INET6 */
|
|
default:
|
|
return (NULL);
|
|
}
|
|
}
|
|
|
|
static const char *
|
|
netname4(in_addr_t in, in_addr_t mask)
|
|
{
|
|
char *cp = 0;
|
|
static char line[MAXHOSTNAMELEN + sizeof("/xx")];
|
|
char nline[INET_ADDRSTRLEN];
|
|
struct netent *np = 0;
|
|
in_addr_t i;
|
|
|
|
if (in == INADDR_ANY && mask == 0) {
|
|
strlcpy(line, "default", sizeof(line));
|
|
return (line);
|
|
}
|
|
|
|
/* It is ok to supply host address. */
|
|
in &= mask;
|
|
|
|
i = ntohl(in);
|
|
if (!numeric_addr && i) {
|
|
np = getnetbyaddr(i >> NSHIFT(ntohl(mask)), AF_INET);
|
|
if (np != NULL) {
|
|
cp = np->n_name;
|
|
trimdomain(cp, strlen(cp));
|
|
}
|
|
}
|
|
inet_ntop(AF_INET, &in, nline, sizeof(line));
|
|
if (cp != NULL) {
|
|
if (strcpy(cp, nline) != 0)
|
|
return (line);
|
|
strlcpy(line, cp, sizeof(line));
|
|
} else
|
|
strlcpy(line, nline, sizeof(line));
|
|
domask(line + strlen(line), i, ntohl(mask));
|
|
|
|
return (line);
|
|
}
|
|
|
|
#undef NSHIFT
|
|
|
|
#ifdef INET6
|
|
void
|
|
in6_fillscopeid(struct sockaddr_in6 *sa6)
|
|
{
|
|
#if defined(__KAME__)
|
|
/*
|
|
* 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(&sa6->sin6_addr) ||
|
|
IN6_IS_ADDR_MC_NODELOCAL(&sa6->sin6_addr) ||
|
|
IN6_IS_ADDR_MC_LINKLOCAL(&sa6->sin6_addr)) {
|
|
if (sa6->sin6_scope_id == 0)
|
|
sa6->sin6_scope_id =
|
|
ntohs(*(u_int16_t *)&sa6->sin6_addr.s6_addr[2]);
|
|
sa6->sin6_addr.s6_addr[2] = sa6->sin6_addr.s6_addr[3] = 0;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* Mask to length table. To check an invalid value, (length + 1) is used. */
|
|
static int masktolen[256] = {
|
|
[0xff] = 8 + 1,
|
|
[0xfe] = 7 + 1,
|
|
[0xfc] = 6 + 1,
|
|
[0xf8] = 5 + 1,
|
|
[0xf0] = 4 + 1,
|
|
[0xe0] = 3 + 1,
|
|
[0xc0] = 2 + 1,
|
|
[0x80] = 1 + 1,
|
|
[0x00] = 0 + 1,
|
|
};
|
|
|
|
static const char *
|
|
netname6(struct sockaddr_in6 *sa6, struct sockaddr_in6 *mask)
|
|
{
|
|
static char line[NI_MAXHOST + sizeof("/xxx") - 1];
|
|
struct sockaddr_in6 addr;
|
|
char nline[NI_MAXHOST];
|
|
u_char *p, *lim;
|
|
int masklen, illegal = 0, i;
|
|
|
|
if (mask) {
|
|
p = (u_char *)&mask->sin6_addr;
|
|
for (masklen = 0, lim = p + 16; p < lim; p++) {
|
|
if (masktolen[*p] > 0)
|
|
/* -1 is required. */
|
|
masklen += masktolen[*p] - 1;
|
|
else
|
|
illegal++;
|
|
}
|
|
if (illegal)
|
|
xo_error("illegal prefixlen\n");
|
|
|
|
memcpy(&addr, sa6, sizeof(addr));
|
|
for (i = 0; i < 16; ++i)
|
|
addr.sin6_addr.s6_addr[i] &=
|
|
mask->sin6_addr.s6_addr[i];
|
|
sa6 = &addr;
|
|
}
|
|
else
|
|
masklen = 128;
|
|
|
|
if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr))
|
|
return("default");
|
|
|
|
getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, nline, sizeof(nline),
|
|
NULL, 0, NI_NUMERICHOST);
|
|
if (numeric_addr)
|
|
strlcpy(line, nline, sizeof(line));
|
|
else
|
|
getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line,
|
|
sizeof(line), NULL, 0, 0);
|
|
if (numeric_addr || strcmp(line, nline) == 0)
|
|
sprintf(&line[strlen(line)], "/%d", masklen);
|
|
|
|
return (line);
|
|
}
|
|
#endif /*INET6*/
|
|
|
|
/*
|
|
* Print routing statistics
|
|
*/
|
|
void
|
|
rt_stats(void)
|
|
{
|
|
struct rtstat rtstat;
|
|
u_long rtsaddr, rttaddr;
|
|
int rttrash;
|
|
|
|
if ((rtsaddr = nl[N_RTSTAT].n_value) == 0) {
|
|
xo_emit("{W:rtstat: symbol not in namelist}\n");
|
|
return;
|
|
}
|
|
if ((rttaddr = nl[N_RTTRASH].n_value) == 0) {
|
|
xo_emit("{W:rttrash: symbol not in namelist}\n");
|
|
return;
|
|
}
|
|
kread(rtsaddr, (char *)&rtstat, sizeof (rtstat));
|
|
kread(rttaddr, (char *)&rttrash, sizeof (rttrash));
|
|
xo_emit("{T:routing}:\n");
|
|
|
|
#define p(f, m) if (rtstat.f || sflag <= 1) \
|
|
xo_emit(m, rtstat.f, plural(rtstat.f))
|
|
|
|
p(rts_badredirect, "\t{:bad-redirects/%hu} "
|
|
"{N:/bad routing redirect%s}\n");
|
|
p(rts_dynamic, "\t{:dynamically-created/%hu} "
|
|
"{N:/dynamically created route%s}\n");
|
|
p(rts_newgateway, "\t{:new-gateways/%hu} "
|
|
"{N:/new gateway%s due to redirects}\n");
|
|
p(rts_unreach, "\t{:unreachable-destination/%hu} "
|
|
"{N:/destination%s found unreachable}\n");
|
|
p(rts_wildcard, "\t{:wildcard-uses/%hu} "
|
|
"{N:/use%s of a wildcard route}\n");
|
|
#undef p
|
|
|
|
if (rttrash || sflag <= 1)
|
|
xo_emit("\t{:unused-but-not-freed/%u} "
|
|
"{N:/route%s not in table but not freed}\n",
|
|
rttrash, plural(rttrash));
|
|
}
|