feda1a4372
general, when support was added to netstat for fetching data using sysctl, no provision was left for fetching equivalent data from a core dump, and in fact, netstat would _always_ fetch data from the live kernel using sysctl even when -M was specified resulting in the user believing they were getting data from coredumps when they actually weren't. Some specific changes: - Add a global 'live' variable that is true if netstat is running against the live kernel and false if -M has been specified. - Stop abusing the sysctl flag in the protocol tables to hold the protocol number. Instead, the protocol is now its own field in the tables, and it is passed as a separate parameter to the PCB and stat routines rather than overloading the KVM offset parameter. - Don't run PCB or stats functions who don't have a namelist offset if we are being run against a crash dump (!live). - For the inet and unix PCB routines, we generate the same buffer from KVM that the sysctl usually generates complete with the header and trailer. - Don't run bpf stats for !live (before it would just silently always run live). - kread() no longer trashes memory when opening the buffer if there is an error on open and the passed in buffer is smaller than _POSIX2_LINE_MAX. - The multicast routing code doesn't fallback to kvm on live kernels if the sysctl fails. Keeping this made the code rather hairy, and netstat is already tied to the kernel ABI anyway (even when using sysctl's since things like xinpcb contain an inpcb) so any kernels this is run against that have the multicast routing stuff should have the sysctls. - Don't try to dig around in the kernel linker in the netgraph PCB routine for core dumps. Other notes: - sctp's PCB routine only works on live kernels, it looked rather complicated to generate all the same stuff via KVM. Someone can always add it later if desired though. - Fix the ipsec removal bug where N_xxx for IPSEC stats weren't renumbered. - Use sysctlbyname() everywhere rather than hardcoded mib values. MFC after: 1 week Approved by: re (rwatson)
468 lines
16 KiB
C
468 lines
16 KiB
C
/* $FreeBSD$ */
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/* $KAME: ipsec.c,v 1.33 2003/07/25 09:54:32 itojun Exp $ */
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/*
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* Copyright (c) 2005 NTT Multimedia Communications Laboratories, Inc.
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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/*
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* Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
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* 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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* 3. Neither the name of the project 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 PROJECT 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 PROJECT 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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/*
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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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[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95";
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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/queue.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <netinet/in.h>
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#ifdef IPSEC
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#include <netipsec/ipsec.h>
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#include <netipsec/ah_var.h>
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#include <netipsec/esp_var.h>
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#include <netipsec/ipcomp_var.h>
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#endif
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "netstat.h"
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#ifdef IPSEC
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struct val2str {
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int val;
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const char *str;
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};
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static struct val2str ipsec_ahnames[] = {
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{ SADB_AALG_NONE, "none", },
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{ SADB_AALG_MD5HMAC, "hmac-md5", },
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{ SADB_AALG_SHA1HMAC, "hmac-sha1", },
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{ SADB_X_AALG_MD5, "md5", },
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{ SADB_X_AALG_SHA, "sha", },
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{ SADB_X_AALG_NULL, "null", },
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#ifdef SADB_X_AALG_SHA2_256
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{ SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
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#endif
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#ifdef SADB_X_AALG_SHA2_384
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{ SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
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#endif
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#ifdef SADB_X_AALG_SHA2_512
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{ SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
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#endif
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#ifdef SADB_X_AALG_RIPEMD160HMAC
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{ SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", },
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#endif
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#ifdef SADB_X_AALG_AES_XCBC_MAC
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{ SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", },
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#endif
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{ -1, NULL },
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};
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static struct val2str ipsec_espnames[] = {
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{ SADB_EALG_NONE, "none", },
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{ SADB_EALG_DESCBC, "des-cbc", },
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{ SADB_EALG_3DESCBC, "3des-cbc", },
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{ SADB_EALG_NULL, "null", },
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{ SADB_X_EALG_CAST128CBC, "cast128-cbc", },
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{ SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
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#ifdef SADB_X_EALG_RIJNDAELCBC
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{ SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
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#endif
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#ifdef SADB_X_EALG_AESCTR
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{ SADB_X_EALG_AESCTR, "aes-ctr", },
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#endif
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{ -1, NULL },
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};
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static struct val2str ipsec_compnames[] = {
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{ SADB_X_CALG_NONE, "none", },
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{ SADB_X_CALG_OUI, "oui", },
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{ SADB_X_CALG_DEFLATE, "deflate", },
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{ SADB_X_CALG_LZS, "lzs", },
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{ -1, NULL },
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};
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static void ipsec_hist(const u_quad_t *hist, size_t histmax,
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const struct val2str *name, const char *title);
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static void print_ipsecstats(const struct ipsecstat *ipsecstat);
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/*
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* Dump IPSEC statistics structure.
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*/
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static void
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ipsec_hist(const u_quad_t *hist, size_t histmax, const struct val2str *name,
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const char *title)
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{
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int first;
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size_t proto;
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const struct val2str *p;
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first = 1;
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for (proto = 0; proto < histmax; proto++) {
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if (hist[proto] <= 0)
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continue;
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if (first) {
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printf("\t%s histogram:\n", title);
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first = 0;
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}
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for (p = name; p && p->str; p++) {
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if (p->val == (int)proto)
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break;
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}
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if (p && p->str) {
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printf("\t\t%s: %ju\n", p->str, (uintmax_t)hist[proto]);
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} else {
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printf("\t\t#%ld: %ju\n", (long)proto,
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(uintmax_t)hist[proto]);
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}
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}
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}
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static void
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print_ipsecstats(const struct ipsecstat *ipsecstat)
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{
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#define p(f, m) if (ipsecstat->f || sflag <= 1) \
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printf(m, (uintmax_t)ipsecstat->f, plural(ipsecstat->f))
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#define pes(f, m) if (ipsecstat->f || sflag <= 1) \
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printf(m, (uintmax_t)ipsecstat->f, plurales(ipsecstat->f))
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#define hist(f, n, t) \
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ipsec_hist((f), sizeof(f)/sizeof(f[0]), (n), (t));
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p(in_success, "\t%ju inbound packet%s processed successfully\n");
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p(in_polvio, "\t%ju inbound packet%s violated process security "
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"policy\n");
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p(in_nosa, "\t%ju inbound packet%s with no SA available\n");
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p(in_inval, "\t%ju invalid inbound packet%s\n");
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p(in_nomem, "\t%ju inbound packet%s failed due to insufficient memory\n");
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p(in_badspi, "\t%ju inbound packet%s failed getting SPI\n");
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p(in_ahreplay, "\t%ju inbound packet%s failed on AH replay check\n");
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p(in_espreplay, "\t%ju inbound packet%s failed on ESP replay check\n");
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p(in_ahauthsucc, "\t%ju inbound packet%s considered authentic\n");
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p(in_ahauthfail, "\t%ju inbound packet%s failed on authentication\n");
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hist(ipsecstat->in_ahhist, ipsec_ahnames, "AH input");
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hist(ipsecstat->in_esphist, ipsec_espnames, "ESP input");
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hist(ipsecstat->in_comphist, ipsec_compnames, "IPComp input");
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p(out_success, "\t%ju outbound packet%s processed successfully\n");
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p(out_polvio, "\t%ju outbound packet%s violated process security "
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"policy\n");
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p(out_nosa, "\t%ju outbound packet%s with no SA available\n");
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p(out_inval, "\t%ju invalid outbound packet%s\n");
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p(out_nomem, "\t%ju outbound packet%s failed due to insufficient memory\n");
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p(out_noroute, "\t%ju outbound packet%s with no route\n");
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hist(ipsecstat->out_ahhist, ipsec_ahnames, "AH output");
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hist(ipsecstat->out_esphist, ipsec_espnames, "ESP output");
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hist(ipsecstat->out_comphist, ipsec_compnames, "IPComp output");
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p(spdcachelookup, "\t%ju SPD cache lookup%s\n");
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pes(spdcachemiss, "\t%ju SPD cache miss%s\n");
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#undef pes
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#undef hist
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p(ips_in_polvio, "\t%ju inbound packet%s violated process "
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"security policy\n");
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p(ips_out_polvio, "\t%ju outbound packet%s violated process "
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"security policy\n");
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p(ips_out_nosa, "\t%ju outbound packet%s with no SA available\n");
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p(ips_out_nomem, "\t%ju outbound packet%s failed due to "
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"insufficient memory\n");
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p(ips_out_noroute, "\t%ju outbound packet%s with no route "
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"available\n");
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p(ips_out_inval, "\t%ju invalid outbound packet%s\n");
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p(ips_out_bundlesa, "\t%ju outbound packet%s with bundled SAs\n");
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p(ips_mbcoalesced, "\t%ju mbuf%s coalesced during clone\n");
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p(ips_clcoalesced, "\t%ju cluster%s coalesced during clone\n");
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p(ips_clcopied, "\t%ju cluster%s copied during clone\n");
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p(ips_mbinserted, "\t%ju mbuf%s inserted during makespace\n");
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#undef p
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}
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void
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ipsec_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
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{
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struct ipsecstat ipsecstat;
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if (off == 0)
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return;
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printf ("%s:\n", name);
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kread(off, (char *)&ipsecstat, sizeof(ipsecstat));
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print_ipsecstats(&ipsecstat);
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}
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static void ipsec_hist_new(const u_int32_t *hist, size_t histmax,
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const struct val2str *name, const char *title);
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static void print_ahstats(const struct ahstat *ahstat);
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static void print_espstats(const struct espstat *espstat);
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static void print_ipcompstats(const struct ipcompstat *ipcompstat);
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/*
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* Dump IPSEC statistics structure.
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*/
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static void
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ipsec_hist_new(const u_int32_t *hist, size_t histmax,
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const struct val2str *name, const char *title)
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{
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int first;
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size_t proto;
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const struct val2str *p;
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first = 1;
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for (proto = 0; proto < histmax; proto++) {
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if (hist[proto] <= 0)
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continue;
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if (first) {
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printf("\t%s histogram:\n", title);
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first = 0;
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}
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for (p = name; p && p->str; p++) {
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if (p->val == (int)proto)
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break;
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}
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if (p && p->str) {
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printf("\t\t%s: %u\n", p->str, hist[proto]);
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} else {
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printf("\t\t#%lu: %u\n", (unsigned long)proto,
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hist[proto]);
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}
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}
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}
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static void
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print_ahstats(const struct ahstat *ahstat)
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{
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#define p32(f, m) if (ahstat->f || sflag <= 1) \
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printf("\t%u" m, (unsigned int)ahstat->f, plural(ahstat->f))
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#define p64(f, m) if (ahstat->f || sflag <= 1) \
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printf("\t%ju" m, (uintmax_t)ahstat->f, plural(ahstat->f))
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#define hist(f, n, t) \
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ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t));
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p32(ahs_hdrops, " packet%s shorter than header shows\n");
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p32(ahs_nopf, " packet%s dropped; protocol family not supported\n");
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p32(ahs_notdb, " packet%s dropped; no TDB\n");
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p32(ahs_badkcr, " packet%s dropped; bad KCR\n");
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p32(ahs_qfull, " packet%s dropped; queue full\n");
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p32(ahs_noxform, " packet%s dropped; no transform\n");
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p32(ahs_wrap, " replay counter wrap%s\n");
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p32(ahs_badauth, " packet%s dropped; bad authentication detected\n");
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p32(ahs_badauthl, " packet%s dropped; bad authentication length\n");
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p32(ahs_replay, " possible replay packet%s detected\n");
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p32(ahs_input, " packet%s in\n");
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p32(ahs_output, " packet%s out\n");
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p32(ahs_invalid, " packet%s dropped; invalid TDB\n");
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p64(ahs_ibytes, " byte%s in\n");
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p64(ahs_obytes, " byte%s out\n");
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p32(ahs_toobig, " packet%s dropped; larger than IP_MAXPACKET\n");
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p32(ahs_pdrops, " packet%s blocked due to policy\n");
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p32(ahs_crypto, " crypto processing failure%s\n");
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p32(ahs_tunnel, " tunnel sanity check failure%s\n");
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hist(ahstat->ahs_hist, ipsec_ahnames, "AH output");
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#undef p32
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#undef p64
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#undef hist
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}
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void
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ah_stats(u_long off, const char *name, int family __unused, int proto __unused)
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{
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struct ahstat ahstat;
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if (off == 0)
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return;
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printf ("%s:\n", name);
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kread(off, (char *)&ahstat, sizeof(ahstat));
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print_ahstats(&ahstat);
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}
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static void
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print_espstats(const struct espstat *espstat)
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{
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#define p32(f, m) if (espstat->f || sflag <= 1) \
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printf("\t%u" m, (unsigned int)espstat->f, plural(espstat->f))
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#define p64(f, m) if (espstat->f || sflag <= 1) \
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printf("\t%ju" m, (uintmax_t)espstat->f, plural(espstat->f))
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#define hist(f, n, t) \
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ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t));
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p32(esps_hdrops, " packet%s shorter than header shows\n");
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p32(esps_nopf, " packet%s dropped; protocol family not supported\n");
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p32(esps_notdb, " packet%s dropped; no TDB\n");
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p32(esps_badkcr, " packet%s dropped; bad KCR\n");
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p32(esps_qfull, " packet%s dropped; queue full\n");
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p32(esps_noxform, " packet%s dropped; no transform\n");
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p32(esps_badilen, " packet%s dropped; bad ilen\n");
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p32(esps_wrap, " replay counter wrap%s\n");
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p32(esps_badenc, " packet%s dropped; bad encryption detected\n");
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p32(esps_badauth, " packet%s dropped; bad authentication detected\n");
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p32(esps_replay, " possible replay packet%s detected\n");
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p32(esps_input, " packet%s in\n");
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p32(esps_output, " packet%s out\n");
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p32(esps_invalid, " packet%s dropped; invalid TDB\n");
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p64(esps_ibytes, " byte%s in\n");
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p64(esps_obytes, " byte%s out\n");
|
|
p32(esps_toobig, " packet%s dropped; larger than IP_MAXPACKET\n");
|
|
p32(esps_pdrops, " packet%s blocked due to policy\n");
|
|
p32(esps_crypto, " crypto processing failure%s\n");
|
|
p32(esps_tunnel, " tunnel sanity check failure%s\n");
|
|
hist(espstat->esps_hist, ipsec_espnames, "ESP output");
|
|
|
|
#undef p32
|
|
#undef p64
|
|
#undef hist
|
|
}
|
|
|
|
void
|
|
esp_stats(u_long off, const char *name, int family __unused, int proto __unused)
|
|
{
|
|
struct espstat espstat;
|
|
|
|
if (off == 0)
|
|
return;
|
|
printf ("%s:\n", name);
|
|
kread(off, (char *)&espstat, sizeof(espstat));
|
|
|
|
print_espstats(&espstat);
|
|
}
|
|
|
|
static void
|
|
print_ipcompstats(const struct ipcompstat *ipcompstat)
|
|
{
|
|
#define p32(f, m) if (ipcompstat->f || sflag <= 1) \
|
|
printf("\t%u" m, (unsigned int)ipcompstat->f, plural(ipcompstat->f))
|
|
#define p64(f, m) if (ipcompstat->f || sflag <= 1) \
|
|
printf("\t%ju" m, (uintmax_t)ipcompstat->f, plural(ipcompstat->f))
|
|
#define hist(f, n, t) \
|
|
ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t));
|
|
|
|
p32(ipcomps_hdrops, " packet%s shorter than header shows\n");
|
|
p32(ipcomps_nopf, " packet%s dropped; protocol family not supported\n");
|
|
p32(ipcomps_notdb, " packet%s dropped; no TDB\n");
|
|
p32(ipcomps_badkcr, " packet%s dropped; bad KCR\n");
|
|
p32(ipcomps_qfull, " packet%s dropped; queue full\n");
|
|
p32(ipcomps_noxform, " packet%s dropped; no transform\n");
|
|
p32(ipcomps_wrap, " replay counter wrap%s\n");
|
|
p32(ipcomps_input, " packet%s in\n");
|
|
p32(ipcomps_output, " packet%s out\n");
|
|
p32(ipcomps_invalid, " packet%s dropped; invalid TDB\n");
|
|
p64(ipcomps_ibytes, " byte%s in\n");
|
|
p64(ipcomps_obytes, " byte%s out\n");
|
|
p32(ipcomps_toobig, " packet%s dropped; larger than IP_MAXPACKET\n");
|
|
p32(ipcomps_pdrops, " packet%s blocked due to policy\n");
|
|
p32(ipcomps_crypto, " crypto processing failure%s\n");
|
|
hist(ipcompstat->ipcomps_hist, ipsec_compnames, "COMP output");
|
|
|
|
#undef p32
|
|
#undef p64
|
|
#undef hist
|
|
}
|
|
|
|
void
|
|
ipcomp_stats(u_long off, const char *name, int family __unused,
|
|
int proto __unused)
|
|
{
|
|
struct ipcompstat ipcompstat;
|
|
|
|
if (off == 0)
|
|
return;
|
|
printf ("%s:\n", name);
|
|
kread(off, (char *)&ipcompstat, sizeof(ipcompstat));
|
|
|
|
print_ipcompstats(&ipcompstat);
|
|
}
|
|
|
|
#endif /*IPSEC*/
|