fbbd9655e5
Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
456 lines
16 KiB
C
456 lines
16 KiB
C
/* $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. 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 <stdbool.h>
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#include <string.h>
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#include <unistd.h>
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#include <libxo/xo.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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#ifdef SADB_X_EALG_AESGCM16
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{ SADB_X_EALG_AESGCM16, "aes-gcm-16", },
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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 print_ipsecstats(const struct ipsecstat *ipsecstat);
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static void
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print_ipsecstats(const struct ipsecstat *ipsecstat)
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{
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xo_open_container("ipsec-statistics");
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#define p(f, m) if (ipsecstat->f || sflag <= 1) \
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xo_emit(m, (uintmax_t)ipsecstat->f, plural(ipsecstat->f))
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p(ips_in_polvio, "\t{:dropped-policy-violation/%ju} "
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"{N:/inbound packet%s violated process security policy}\n");
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p(ips_in_nomem, "\t{:dropped-no-memory/%ju} "
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"{N:/inbound packet%s failed due to insufficient memory}\n");
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p(ips_in_inval, "\t{:dropped-invalid/%ju} "
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"{N:/invalid inbound packet%s}\n");
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p(ips_out_polvio, "\t{:discarded-policy-violation/%ju} "
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"{N:/outbound packet%s violated process security policy}\n");
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p(ips_out_nosa, "\t{:discarded-no-sa/%ju} "
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"{N:/outbound packet%s with no SA available}\n");
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p(ips_out_nomem, "\t{:discarded-no-memory/%ju} "
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"{N:/outbound packet%s failed due to insufficient memory}\n");
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p(ips_out_noroute, "\t{:discarded-no-route/%ju} "
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"{N:/outbound packet%s with no route available}\n");
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p(ips_out_inval, "\t{:discarded-invalid/%ju} "
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"{N:/invalid outbound packet%s}\n");
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p(ips_out_bundlesa, "\t{:send-bundled-sa/%ju} "
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"{N:/outbound packet%s with bundled SAs}\n");
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p(ips_mbcoalesced, "\t{:mbufs-coalesced-during-clone/%ju} "
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"{N:/mbuf%s coalesced during clone}\n");
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p(ips_clcoalesced, "\t{:clusters-coalesced-during-clone/%ju} "
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"{N:/cluster%s coalesced during clone}\n");
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p(ips_clcopied, "\t{:clusters-copied-during-clone/%ju} "
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"{N:/cluster%s copied during clone}\n");
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p(ips_mbinserted, "\t{:mbufs-inserted/%ju} "
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"{N:/mbuf%s inserted during makespace}\n");
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#undef p
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xo_close_container("ipsec-statistics");
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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 (strcmp(name, "ipsec6") == 0) {
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if (fetch_stats("net.inet6.ipsec6.ipsecstats", off,&ipsecstat,
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sizeof(ipsecstat), kread_counters) != 0)
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return;
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} else {
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if (fetch_stats("net.inet.ipsec.ipsecstats", off, &ipsecstat,
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sizeof(ipsecstat), kread_counters) != 0)
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return;
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}
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xo_emit("{T:/%s}:\n", name);
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print_ipsecstats(&ipsecstat);
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}
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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 uint64_t *hist, size_t histmax,
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const struct val2str *name, const char *title, const char *cname)
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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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xo_open_list(cname);
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xo_emit("\t{T:/%s histogram}:\n", title);
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first = 0;
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}
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xo_open_instance(cname);
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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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xo_emit("\t\t{k:name}: {:count/%ju}\n", p->str,
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(uintmax_t)hist[proto]);
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} else {
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xo_emit("\t\t#{k:name/%lu}: {:count/%ju}\n",
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(unsigned long)proto, (uintmax_t)hist[proto]);
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}
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xo_close_instance(cname);
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}
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if (!first)
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xo_close_list(cname);
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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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xo_open_container("ah-statictics");
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#define p(f, n, m) if (ahstat->f || sflag <= 1) \
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xo_emit("\t{:" n "/%ju} {N:/" m "}\n", \
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(uintmax_t)ahstat->f, plural(ahstat->f))
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#define hist(f, n, t, c) \
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ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t), (c))
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p(ahs_hdrops, "dropped-short-header",
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"packet%s shorter than header shows");
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p(ahs_nopf, "dropped-bad-protocol",
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"packet%s dropped; protocol family not supported");
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p(ahs_notdb, "dropped-no-tdb", "packet%s dropped; no TDB");
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p(ahs_badkcr, "dropped-bad-kcr", "packet%s dropped; bad KCR");
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p(ahs_qfull, "dropped-queue-full", "packet%s dropped; queue full");
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p(ahs_noxform, "dropped-no-transform",
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"packet%s dropped; no transform");
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p(ahs_wrap, "replay-counter-wraps", "replay counter wrap%s");
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p(ahs_badauth, "dropped-bad-auth",
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"packet%s dropped; bad authentication detected");
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p(ahs_badauthl, "dropped-bad-auth-level",
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"packet%s dropped; bad authentication length");
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p(ahs_replay, "possile-replay-detected",
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"possible replay packet%s detected");
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p(ahs_input, "received-packets", "packet%s in");
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p(ahs_output, "send-packets", "packet%s out");
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p(ahs_invalid, "dropped-bad-tdb", "packet%s dropped; invalid TDB");
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p(ahs_ibytes, "received-bytes", "byte%s in");
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p(ahs_obytes, "send-bytes", "byte%s out");
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p(ahs_toobig, "dropped-too-large",
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"packet%s dropped; larger than IP_MAXPACKET");
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p(ahs_pdrops, "dropped-policy-violation",
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"packet%s blocked due to policy");
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p(ahs_crypto, "crypto-failures", "crypto processing failure%s");
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p(ahs_tunnel, "tunnel-failures", "tunnel sanity check failure%s");
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hist(ahstat->ahs_hist, ipsec_ahnames,
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"AH output", "ah-output-histogram");
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#undef p
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#undef hist
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xo_close_container("ah-statictics");
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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 (fetch_stats("net.inet.ah.stats", off, &ahstat,
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sizeof(ahstat), kread_counters) != 0)
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return;
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xo_emit("{T:/%s}:\n", name);
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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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xo_open_container("esp-statictics");
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#define p(f, n, m) if (espstat->f || sflag <= 1) \
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xo_emit("\t{:" n "/%ju} {N:/" m "}\n", \
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(uintmax_t)espstat->f, plural(espstat->f))
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#define hist(f, n, t, c) \
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ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t), (c));
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p(esps_hdrops, "dropped-short-header",
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"packet%s shorter than header shows");
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p(esps_nopf, "dropped-bad-protocol",
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"packet%s dropped; protocol family not supported");
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p(esps_notdb, "dropped-no-tdb", "packet%s dropped; no TDB");
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p(esps_badkcr, "dropped-bad-kcr", "packet%s dropped; bad KCR");
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p(esps_qfull, "dropped-queue-full", "packet%s dropped; queue full");
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p(esps_noxform, "dropped-no-transform",
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"packet%s dropped; no transform");
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p(esps_badilen, "dropped-bad-length", "packet%s dropped; bad ilen");
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p(esps_wrap, "replay-counter-wraps", "replay counter wrap%s");
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p(esps_badenc, "dropped-bad-crypto",
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"packet%s dropped; bad encryption detected");
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p(esps_badauth, "dropped-bad-auth",
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"packet%s dropped; bad authentication detected");
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p(esps_replay, "possible-replay-detected",
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"possible replay packet%s detected");
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p(esps_input, "received-packets", "packet%s in");
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p(esps_output, "sent-packets", "packet%s out");
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p(esps_invalid, "dropped-bad-tdb", "packet%s dropped; invalid TDB");
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p(esps_ibytes, "receieve-bytes", "byte%s in");
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p(esps_obytes, "sent-bytes", "byte%s out");
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p(esps_toobig, "dropped-too-large",
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"packet%s dropped; larger than IP_MAXPACKET");
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p(esps_pdrops, "dropped-policy-violation",
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"packet%s blocked due to policy");
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p(esps_crypto, "crypto-failures", "crypto processing failure%s");
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p(esps_tunnel, "tunnel-failures", "tunnel sanity check failure%s");
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hist(espstat->esps_hist, ipsec_espnames,
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"ESP output", "esp-output-histogram");
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#undef p
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#undef hist
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xo_close_container("esp-statictics");
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}
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void
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esp_stats(u_long off, const char *name, int family __unused, int proto __unused)
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{
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struct espstat espstat;
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if (fetch_stats("net.inet.esp.stats", off, &espstat,
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sizeof(espstat), kread_counters) != 0)
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return;
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xo_emit("{T:/%s}:\n", name);
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print_espstats(&espstat);
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}
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static void
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print_ipcompstats(const struct ipcompstat *ipcompstat)
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{
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xo_open_container("ipcomp-statictics");
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#define p(f, n, m) if (ipcompstat->f || sflag <= 1) \
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xo_emit("\t{:" n "/%ju} {N:/" m "}\n", \
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(uintmax_t)ipcompstat->f, plural(ipcompstat->f))
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#define hist(f, n, t, c) \
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ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t), (c));
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p(ipcomps_hdrops, "dropped-short-header",
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"packet%s shorter than header shows");
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p(ipcomps_nopf, "dropped-bad-protocol",
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"packet%s dropped; protocol family not supported");
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p(ipcomps_notdb, "dropped-no-tdb", "packet%s dropped; no TDB");
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p(ipcomps_badkcr, "dropped-bad-kcr", "packet%s dropped; bad KCR");
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p(ipcomps_qfull, "dropped-queue-full", "packet%s dropped; queue full");
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p(ipcomps_noxform, "dropped-no-transform",
|
|
"packet%s dropped; no transform");
|
|
p(ipcomps_wrap, "replay-counter-wraps", "replay counter wrap%s");
|
|
p(ipcomps_input, "receieve-packets", "packet%s in");
|
|
p(ipcomps_output, "sent-packets", "packet%s out");
|
|
p(ipcomps_invalid, "dropped-bad-tdb", "packet%s dropped; invalid TDB");
|
|
p(ipcomps_ibytes, "receieved-bytes", "byte%s in");
|
|
p(ipcomps_obytes, "sent-bytes", "byte%s out");
|
|
p(ipcomps_toobig, "dropped-too-large",
|
|
"packet%s dropped; larger than IP_MAXPACKET");
|
|
p(ipcomps_pdrops, "dropped-policy-violation",
|
|
"packet%s blocked due to policy");
|
|
p(ipcomps_crypto, "crypto-failure", "crypto processing failure%s");
|
|
hist(ipcompstat->ipcomps_hist, ipsec_compnames,
|
|
"COMP output", "comp-output-histogram");
|
|
p(ipcomps_threshold, "sent-uncompressed-small-packets",
|
|
"packet%s sent uncompressed; size < compr. algo. threshold");
|
|
p(ipcomps_uncompr, "sent-uncompressed-useless-packets",
|
|
"packet%s sent uncompressed; compression was useless");
|
|
|
|
#undef p
|
|
#undef hist
|
|
xo_close_container("ipcomp-statictics");
|
|
}
|
|
|
|
void
|
|
ipcomp_stats(u_long off, const char *name, int family __unused,
|
|
int proto __unused)
|
|
{
|
|
struct ipcompstat ipcompstat;
|
|
|
|
if (fetch_stats("net.inet.ipcomp.stats", off, &ipcompstat,
|
|
sizeof(ipcompstat), kread_counters) != 0)
|
|
return;
|
|
|
|
xo_emit("{T:/%s}:\n", name);
|
|
|
|
print_ipcompstats(&ipcompstat);
|
|
}
|
|
|
|
#endif /*IPSEC*/
|