132 lines
5.3 KiB
C
132 lines
5.3 KiB
C
/*
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* Copyright (c) 2011-2019 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* Copyright (c) 2002 Luigi Rizzo, Universita` di Pisa
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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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#ifndef __IP_FLOWID_H__
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#define __IP_FLOWID_H__
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#include <sys/types.h>
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#include <netinet/in.h>
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/*
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* This structure is used as a flow mask and a flow id for various
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* parts of the code.
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*/
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struct ip_flow_id {
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u_int32_t dst_ip;
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u_int32_t src_ip;
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u_int16_t dst_port;
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u_int16_t src_port;
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u_int8_t proto;
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u_int8_t flags; /* protocol-specific flags */
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u_int8_t addr_type; /* 4 = ipv4, 6 = ipv6, 1=ether ? */
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struct in6_addr dst_ip6; /* could also store MAC addr! */
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struct in6_addr src_ip6;
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u_int32_t flow_id6;
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u_int32_t frag_id6;
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};
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#define IS_IP6_FLOW_ID(id) ((id)->addr_type == 6)
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#ifdef BSD_KERNEL_PRIVATE
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struct route_in6;
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struct sockaddr_in6;
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struct pf_rule;
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/*
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* Arguments for calling ipfw_chk() and dummynet_io(). We put them
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* all into a structure because this way it is easier and more
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* efficient to pass variables around and extend the interface.
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*/
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struct ip_fw_args {
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struct mbuf *fwa_m; /* the mbuf chain */
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struct ifnet *fwa_oif; /* output interface */
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struct pf_rule *fwa_pf_rule; /* matching PF rule */
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struct ether_header *fwa_eh; /* for bridged packets */
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int fwa_flags; /* for dummynet */
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int fwa_oflags; /* for dummynet */
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union {
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struct ip_out_args *_fwa_ipoa; /* for dummynet */
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struct ip6_out_args *_fwa_ip6oa; /* for dummynet */
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} fwa_ipoa_;
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union {
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struct route *_fwa_ro; /* for dummynet */
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struct route_in6 *_fwa_ro6; /* for dummynet */
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} fwa_ro_;
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union {
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struct sockaddr_in *_fwa_dst; /* for dummynet */
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struct sockaddr_in6 *_fwa_dst6; /* for IPv6 dummynet */
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} fwa_dst_;
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struct route_in6 *fwa_ro6_pmtu; /* for IPv6 output */
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struct ifnet *fwa_origifp; /* for IPv6 output */
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u_int32_t fwa_mtu; /* for IPv6 output */
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u_int32_t fwa_unfragpartlen; /* for IPv6 output */
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struct ip6_exthdrs *fwa_exthdrs; /* for IPv6 output */
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struct ip_flow_id fwa_id; /* grabbed from IP header */
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u_int32_t fwa_cookie;
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};
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#define fwa_ipoa fwa_ipoa_._fwa_ipoa
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#define fwa_ip6oa fwa_ipoa_._fwa_ip6oa
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#define fwa_ro fwa_ro_._fwa_ro
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#define fwa_ro6 fwa_ro_._fwa_ro6
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#define fwa_dst fwa_dst_._fwa_dst
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#define fwa_dst6 fwa_dst_._fwa_dst6
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/* Allocate a separate structure for inputs args to save space and bzero time */
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struct ip_fw_in_args {
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struct pf_rule *fwai_pf_rule; /* matching PF rule */
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};
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#endif /* BSD_KERNEL_PRIVATE */
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#endif /* __IP_FLOWID_H__ */
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