9d2d8e7bec
variable set rather than reading from kernel memory. This also makes the -z (zero) flag work correctly MFC after: 1 week Sponsored by: Rubicon Communications, LLC (Netgate) Differential Revision: https://reviews.freebsd.org/D4591
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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* 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 <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",
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"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*/
|