830 lines
19 KiB
C
830 lines
19 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 <nlist.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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/*
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* Definitions for showing gateway flags.
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*/
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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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/*
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* kvm(3) bindings for every needed symbol
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*/
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static struct nlist rl[] = {
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#define N_RTSTAT 0
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{ .n_name = "_rtstat" },
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#define N_RTTRASH 1
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{ .n_name = "_rttrash" },
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{ .n_name = NULL },
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};
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typedef union {
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long dummy; /* Helps align structure. */
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struct sockaddr u_sa;
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u_short u_data[128];
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} sa_u;
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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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struct timespec uptime;
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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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void
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pr_rthdr(int af1)
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{
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if (Aflag)
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xo_emit("{T:/%-8.8s} ","Address");
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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 = (struct sockaddr *)(rtm + 1);
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char buffer[128];
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char prettyname[128];
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sa_u addr, mask, gw;
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unsigned int l;
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xo_open_instance(name);
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#define GETSA(_s, _f) { \
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bzero(&(_s), sizeof(_s)); \
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if (rtm->rtm_addrs & _f) { \
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l = roundup(sa->sa_len, sizeof(long)); \
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memcpy(&(_s), sa, (l > sizeof(_s)) ? sizeof(_s) : l); \
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sa = (struct sockaddr *)((char *)sa + l); \
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} \
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}
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GETSA(addr, RTA_DST);
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GETSA(gw, RTA_GATEWAY);
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GETSA(mask, RTA_NETMASK);
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p_sockaddr("destination", &addr.u_sa, &mask.u_sa, rtm->rtm_flags,
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wid_dst);
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p_sockaddr("gateway", &gw.u_sa, 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 (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 workbuf[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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case AF_INET:
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{
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struct sockaddr_in *sockin = (struct sockaddr_in *)sa;
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if ((sockin->sin_addr.s_addr == INADDR_ANY) &&
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mask &&
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ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr)
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==0L)
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cp = "default" ;
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else if (flags & RTF_HOST)
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cp = routename(sockin->sin_addr.s_addr);
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else if (mask)
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cp = netname(sockin->sin_addr.s_addr,
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((struct sockaddr_in *)mask)->sin_addr.s_addr);
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else
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cp = netname(sockin->sin_addr.s_addr, INADDR_ANY);
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break;
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}
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#ifdef INET6
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case AF_INET6:
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{
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struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
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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(sa6);
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if (flags & RTF_HOST)
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cp = routename6(sa6);
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else if (mask)
|
|
cp = netname6(sa6,
|
|
&((struct sockaddr_in6 *)mask)->sin6_addr);
|
|
else {
|
|
cp = netname6(sa6, NULL);
|
|
}
|
|
break;
|
|
}
|
|
#endif /*INET6*/
|
|
|
|
case AF_NETGRAPH:
|
|
{
|
|
strlcpy(workbuf, ((struct sockaddr_ng *)sa)->sg_data,
|
|
sizeof(workbuf));
|
|
cp = workbuf;
|
|
break;
|
|
}
|
|
|
|
case AF_LINK:
|
|
{
|
|
struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
|
|
|
|
if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
|
|
sdl->sdl_slen == 0) {
|
|
(void) sprintf(workbuf, "link#%d", sdl->sdl_index);
|
|
cp = workbuf;
|
|
} else
|
|
switch (sdl->sdl_type) {
|
|
|
|
case IFT_ETHER:
|
|
case IFT_L2VLAN:
|
|
case IFT_BRIDGE:
|
|
if (sdl->sdl_alen == ETHER_ADDR_LEN) {
|
|
cp = ether_ntoa((struct ether_addr *)
|
|
(sdl->sdl_data + sdl->sdl_nlen));
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
default:
|
|
cp = link_ntoa(sdl);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
u_char *s = (u_char *)sa->sa_data, *slim;
|
|
char *cq, *cqlim;
|
|
|
|
cq = workbuf;
|
|
slim = sa->sa_len + (u_char *) sa;
|
|
cqlim = cq + sizeof(workbuf) - 6;
|
|
cq += sprintf(cq, "(%d)", sa->sa_family);
|
|
while (s < slim && cq < cqlim) {
|
|
cq += sprintf(cq, " %02x", *s++);
|
|
if (s < slim)
|
|
cq += sprintf(cq, "%02x", *s++);
|
|
}
|
|
cp = workbuf;
|
|
}
|
|
}
|
|
|
|
return (cp);
|
|
}
|
|
|
|
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(in_addr_t in)
|
|
{
|
|
char *cp;
|
|
static char line[MAXHOSTNAMELEN];
|
|
struct hostent *hp;
|
|
|
|
cp = 0;
|
|
if (!numeric_addr) {
|
|
hp = gethostbyaddr(&in, sizeof (struct in_addr), AF_INET);
|
|
if (hp) {
|
|
cp = hp->h_name;
|
|
trimdomain(cp, strlen(cp));
|
|
}
|
|
}
|
|
if (cp) {
|
|
strlcpy(line, cp, sizeof(line));
|
|
} else {
|
|
#define C(x) ((x) & 0xff)
|
|
in = ntohl(in);
|
|
sprintf(line, "%u.%u.%u.%u",
|
|
C(in >> 24), C(in >> 16), C(in >> 8), C(in));
|
|
}
|
|
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 || (!numeric_addr && NSHIFT(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.
|
|
*/
|
|
char *
|
|
netname(in_addr_t in, in_addr_t mask)
|
|
{
|
|
char *cp = 0;
|
|
static char line[MAXHOSTNAMELEN];
|
|
struct netent *np = 0;
|
|
in_addr_t i;
|
|
|
|
/* 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));
|
|
}
|
|
}
|
|
if (cp != NULL) {
|
|
strlcpy(line, cp, sizeof(line));
|
|
} else {
|
|
inet_ntop(AF_INET, &in, line, sizeof(line) - 1);
|
|
}
|
|
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
|
|
}
|
|
|
|
const char *
|
|
netname6(struct sockaddr_in6 *sa6, struct in6_addr *mask)
|
|
{
|
|
static char line[MAXHOSTNAMELEN];
|
|
u_char *p = (u_char *)mask;
|
|
u_char *lim;
|
|
int masklen, illegal = 0, flag = 0;
|
|
|
|
if (mask) {
|
|
for (masklen = 0, lim = p + 16; p < lim; p++) {
|
|
switch (*p) {
|
|
case 0xff:
|
|
masklen += 8;
|
|
break;
|
|
case 0xfe:
|
|
masklen += 7;
|
|
break;
|
|
case 0xfc:
|
|
masklen += 6;
|
|
break;
|
|
case 0xf8:
|
|
masklen += 5;
|
|
break;
|
|
case 0xf0:
|
|
masklen += 4;
|
|
break;
|
|
case 0xe0:
|
|
masklen += 3;
|
|
break;
|
|
case 0xc0:
|
|
masklen += 2;
|
|
break;
|
|
case 0x80:
|
|
masklen += 1;
|
|
break;
|
|
case 0x00:
|
|
break;
|
|
default:
|
|
illegal ++;
|
|
break;
|
|
}
|
|
}
|
|
if (illegal)
|
|
xo_error("illegal prefixlen\n");
|
|
}
|
|
else
|
|
masklen = 128;
|
|
|
|
if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr))
|
|
return("default");
|
|
|
|
if (numeric_addr)
|
|
flag |= NI_NUMERICHOST;
|
|
getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line),
|
|
NULL, 0, flag);
|
|
|
|
if (numeric_addr)
|
|
sprintf(&line[strlen(line)], "/%d", masklen);
|
|
|
|
return line;
|
|
}
|
|
|
|
char *
|
|
routename6(struct sockaddr_in6 *sa6)
|
|
{
|
|
static char line[MAXHOSTNAMELEN];
|
|
int flag = 0;
|
|
/* use local variable for safety */
|
|
struct sockaddr_in6 sa6_local;
|
|
|
|
sa6_local.sin6_family = AF_INET6;
|
|
sa6_local.sin6_len = sizeof(sa6_local);
|
|
sa6_local.sin6_addr = sa6->sin6_addr;
|
|
sa6_local.sin6_scope_id = sa6->sin6_scope_id;
|
|
|
|
if (numeric_addr)
|
|
flag |= NI_NUMERICHOST;
|
|
|
|
getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len,
|
|
line, sizeof(line), NULL, 0, flag);
|
|
|
|
return line;
|
|
}
|
|
#endif /*INET6*/
|
|
|
|
/*
|
|
* Print routing statistics
|
|
*/
|
|
void
|
|
rt_stats(void)
|
|
{
|
|
struct rtstat rtstat;
|
|
u_long rtsaddr, rttaddr;
|
|
int rttrash;
|
|
|
|
kresolve_list(rl);
|
|
|
|
if ((rtsaddr = rl[N_RTSTAT].n_value) == 0) {
|
|
xo_emit("{W:rtstat: symbol not in namelist}\n");
|
|
return;
|
|
}
|
|
if ((rttaddr = rl[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));
|
|
}
|