1 /* 2 * Copyright (c) 2011-2019 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 /* 30 * Copyright (c) 2002 Luigi Rizzo, Universita` di Pisa 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 41 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 */ 54 55 #ifndef __IP_FLOWID_H__ 56 #define __IP_FLOWID_H__ 57 58 #include <sys/types.h> 59 #include <netinet/in.h> 60 61 /* 62 * This structure is used as a flow mask and a flow id for various 63 * parts of the code. 64 */ 65 struct ip_flow_id { 66 u_int32_t dst_ip; 67 u_int32_t src_ip; 68 u_int16_t dst_port; 69 u_int16_t src_port; 70 u_int8_t proto; 71 u_int8_t flags; /* protocol-specific flags */ 72 u_int8_t addr_type; /* 4 = ipv4, 6 = ipv6, 1=ether ? */ 73 struct in6_addr dst_ip6; /* could also store MAC addr! */ 74 struct in6_addr src_ip6; 75 u_int32_t flow_id6; 76 u_int32_t frag_id6; 77 }; 78 79 #define IS_IP6_FLOW_ID(id) ((id)->addr_type == 6) 80 81 #ifdef BSD_KERNEL_PRIVATE 82 struct route_in6; 83 struct sockaddr_in6; 84 struct pf_rule; 85 86 /* 87 * Arguments for calling ipfw_chk() and dummynet_io(). We put them 88 * all into a structure because this way it is easier and more 89 * efficient to pass variables around and extend the interface. 90 */ 91 struct ip_fw_args { 92 struct mbuf *fwa_m; /* the mbuf chain */ 93 struct ifnet *fwa_oif; /* output interface */ 94 struct pf_rule *fwa_pf_rule; /* matching PF rule */ 95 struct ether_header *fwa_eh; /* for bridged packets */ 96 int fwa_flags; /* for dummynet */ 97 int fwa_oflags; /* for dummynet */ 98 union { 99 struct ip_out_args *_fwa_ipoa; /* for dummynet */ 100 struct ip6_out_args *_fwa_ip6oa; /* for dummynet */ 101 } fwa_ipoa_; 102 union { 103 struct route *_fwa_ro; /* for dummynet */ 104 struct route_in6 *_fwa_ro6; /* for dummynet */ 105 } fwa_ro_; 106 union { 107 struct sockaddr_in *_fwa_dst; /* for dummynet */ 108 struct sockaddr_in6 *_fwa_dst6; /* for IPv6 dummynet */ 109 } fwa_dst_; 110 struct route_in6 *fwa_ro6_pmtu; /* for IPv6 output */ 111 struct ifnet *fwa_origifp; /* for IPv6 output */ 112 u_int32_t fwa_mtu; /* for IPv6 output */ 113 u_int32_t fwa_unfragpartlen; /* for IPv6 output */ 114 struct ip6_exthdrs *fwa_exthdrs; /* for IPv6 output */ 115 struct ip_flow_id fwa_id; /* grabbed from IP header */ 116 u_int32_t fwa_cookie; 117 }; 118 #define fwa_ipoa fwa_ipoa_._fwa_ipoa 119 #define fwa_ip6oa fwa_ipoa_._fwa_ip6oa 120 #define fwa_ro fwa_ro_._fwa_ro 121 #define fwa_ro6 fwa_ro_._fwa_ro6 122 #define fwa_dst fwa_dst_._fwa_dst 123 #define fwa_dst6 fwa_dst_._fwa_dst6 124 125 /* Allocate a separate structure for inputs args to save space and bzero time */ 126 struct ip_fw_in_args { 127 struct pf_rule *fwai_pf_rule; /* matching PF rule */ 128 }; 129 130 #endif /* BSD_KERNEL_PRIVATE */ 131 132 #endif /* __IP_FLOWID_H__ */ 133