22bbefb2c9
When a security policy should match TCP connection with specific ports, the SYN+ACK segment send by syncache_respond() is considered as forwarded packet, because at this moment TCP connection does not have PCB structure, and ip_output() is called without inpcb pointer. In this case SPIDX filled for SP lookup will not contain TCP ports and security policy will not be found. This can lead to unencrypted SYN+ACK on the wire. This patch restores the old behavior, when ports will not be filled only for forwarded packets. Reported by: Dewayne Geraghty <dewayne.geraghty at heuristicsystems.com.au> MFC after: 1 week
81 lines
3.2 KiB
C
81 lines
3.2 KiB
C
/* $FreeBSD$ */
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/* $KAME: ipsec.h,v 1.44 2001/03/23 08:08:47 itojun Exp $ */
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/*-
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* Copyright (C) 1995, 1996, 1997, and 1998 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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* IPsec controller part.
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*/
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#ifndef _NETIPSEC_IPSEC6_H_
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#define _NETIPSEC_IPSEC6_H_
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#include <net/pfkeyv2.h>
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#include <netipsec/keydb.h>
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#ifdef _KERNEL
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#include <sys/counter.h>
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VNET_PCPUSTAT_DECLARE(struct ipsecstat, ipsec6stat);
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VNET_DECLARE(int, ip6_esp_trans_deflev);
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VNET_DECLARE(int, ip6_esp_net_deflev);
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VNET_DECLARE(int, ip6_ah_trans_deflev);
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VNET_DECLARE(int, ip6_ah_net_deflev);
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VNET_DECLARE(int, ip6_ipsec_ecn);
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#define IPSEC6STAT_INC(name) \
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VNET_PCPUSTAT_ADD(struct ipsecstat, ipsec6stat, name, 1)
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#define V_ip6_esp_trans_deflev VNET(ip6_esp_trans_deflev)
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#define V_ip6_esp_net_deflev VNET(ip6_esp_net_deflev)
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#define V_ip6_ah_trans_deflev VNET(ip6_ah_trans_deflev)
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#define V_ip6_ah_net_deflev VNET(ip6_ah_net_deflev)
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#define V_ip6_ipsec_ecn VNET(ip6_ipsec_ecn)
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struct inpcb;
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struct secpolicy *ipsec6_checkpolicy(const struct mbuf *,
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struct inpcb *, int *, int);
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void ipsec6_setsockaddrs(const struct mbuf *, union sockaddr_union *,
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union sockaddr_union *);
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int ipsec6_input(struct mbuf *, int, int);
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int ipsec6_in_reject(const struct mbuf *, struct inpcb *);
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int ipsec6_forward(struct mbuf *);
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int ipsec6_pcbctl(struct inpcb *, struct sockopt *);
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int ipsec6_output(struct mbuf *, struct inpcb *);
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int ipsec6_capability(struct mbuf *, u_int);
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int ipsec6_common_input_cb(struct mbuf *, struct secasvar *, int, int);
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int ipsec6_process_packet(struct mbuf *, struct secpolicy *, struct inpcb *);
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int ip6_ipsec_filtertunnel(struct mbuf *);
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int ip6_ipsec_pcbctl(struct inpcb *, struct sockopt *);
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#endif /*_KERNEL*/
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#endif /*_NETIPSEC_IPSEC6_H_*/
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