/* * Copyright (c) 2000-2024 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1982, 1986, 1990, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.32.2.4 2001/08/13 16:26:17 ume Exp $ */ /* * NOTICE: This file was modified by SPARTA, Inc. in 2007 to introduce * support for mandatory and extensible security protections. This notice * is included in support of clause 2.2 (b) of the Apple Public License, * Version 2.0. */ #ifndef _NETINET_IN_PCB_H_ #define _NETINET_IN_PCB_H_ #include #include #include #include #include #include #if IPSEC #include /* for IPSEC */ #endif /* IPSEC */ #if NECP #include #endif #if SKYWALK #include #endif /* SKYWALK */ typedef u_quad_t inp_gen_t; /* * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet. * So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing * the following structure. */ struct in_addr_4in6 { u_int32_t ia46_pad32[3]; struct in_addr ia46_addr4; }; /* * Interface exported to userland by various protocols which use * inpcbs. Hack alert -- only define if struct xsocket is in scope. */ #pragma pack(4) #if defined(__LP64__) struct _inpcb_list_entry { u_int32_t le_next; u_int32_t le_prev; }; #define _INPCB_PTR(x) u_int32_t #define _INPCB_LIST_ENTRY(x) struct _inpcb_list_entry #else /* !__LP64__ */ #define _INPCB_PTR(x) x #define _INPCB_LIST_ENTRY(x) LIST_ENTRY(x) #endif /* !__LP64__ */ struct inpcbinfo; struct inpcbport; struct mbuf; struct ip6_pktopts; struct ip6_moptions; struct icmp6_filter; struct inpcbpolicy; struct inpcb { _INPCB_LIST_ENTRY(inpcb) inp_hash; /* hash list */ struct in_addr reserved1; /* reserved */ struct in_addr reserved2; /* reserved */ u_short inp_fport; /* foreign port */ u_short inp_lport; /* local port */ _INPCB_LIST_ENTRY(inpcb) inp_list; /* list for all peer PCBs */ _INPCB_PTR(caddr_t) inp_ppcb; /* per-protocol pcb */ _INPCB_PTR(struct inpcbinfo *) inp_pcbinfo; /* PCB list info */ _INPCB_PTR(void *) inp_socket; /* back pointer to socket */ u_char nat_owner; /* Used to NAT TCP/UDP traffic */ u_int32_t nat_cookie; /* Cookie stored and returned to NAT */ _INPCB_LIST_ENTRY(inpcb) inp_portlist; /* this PCB's local port list */ _INPCB_PTR(struct inpcbport *) inp_phd; /* head of this list */ inp_gen_t inp_gencnt; /* generation count of this instance */ int inp_flags; /* generic IP/datagram flags */ u_int32_t inp_flow; u_char inp_vflag; u_char inp_ip_ttl; /* time to live proto */ u_char inp_ip_p; /* protocol proto */ /* protocol dependent part */ union { /* foreign host table entry */ struct in_addr_4in6 inp46_foreign; struct in6_addr inp6_foreign; } inp_dependfaddr; union { /* local host table entry */ struct in_addr_4in6 inp46_local; struct in6_addr inp6_local; } inp_dependladdr; union { /* placeholder for routing entry */ u_char inp4_route[20]; u_char inp6_route[32]; } inp_dependroute; struct { /* type of service proto */ u_char inp4_ip_tos; /* IP options */ _INPCB_PTR(struct mbuf *) inp4_options; /* IP multicast options */ _INPCB_PTR(struct ip_moptions *) inp4_moptions; } inp_depend4; struct { /* IP options */ _INPCB_PTR(struct mbuf *) inp6_options; u_int8_t inp6_hlim; u_int8_t unused_uint8_1; ushort unused_uint16_1; /* IP6 options for outgoing packets */ _INPCB_PTR(struct ip6_pktopts *) inp6_outputopts; /* IP multicast options */ _INPCB_PTR(struct ip6_moptions *) inp6_moptions; /* ICMPv6 code type filter */ _INPCB_PTR(struct icmp6_filter *) inp6_icmp6filt; /* IPV6_CHECKSUM setsockopt */ int inp6_cksum; u_short inp6_ifindex; short inp6_hops; } inp_depend6; int hash_element; /* Array index of pcb's hash list */ _INPCB_PTR(caddr_t) inp_saved_ppcb; /* pointer while cached */ _INPCB_PTR(struct inpcbpolicy *) inp_sp; u_int32_t reserved[3]; /* reserved */ }; struct xinpcb { u_int32_t xi_len; /* length of this structure */ struct inpcb xi_inp; struct xsocket xi_socket; u_quad_t xi_alignment_hack; }; #if XNU_TARGET_OS_OSX || KERNEL || !(TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) struct inpcb64_list_entry { u_int64_t le_next; u_int64_t le_prev; }; struct xinpcb64 { u_int64_t xi_len; /* length of this structure */ u_int64_t xi_inpp; u_short inp_fport; /* foreign port */ u_short inp_lport; /* local port */ struct inpcb64_list_entry inp_list; /* list for all PCBs */ u_int64_t inp_ppcb; /* ptr to per-protocol PCB */ u_int64_t inp_pcbinfo; /* PCB list info */ struct inpcb64_list_entry inp_portlist; /* this PCB's local port list */ u_int64_t inp_phd; /* head of this list */ inp_gen_t inp_gencnt; /* current generation count */ int inp_flags; /* generic IP/datagram flags */ u_int32_t inp_flow; u_char inp_vflag; u_char inp_ip_ttl; /* time to live */ u_char inp_ip_p; /* protocol */ union { /* foreign host table entry */ struct in_addr_4in6 inp46_foreign; struct in6_addr inp6_foreign; } inp_dependfaddr; union { /* local host table entry */ struct in_addr_4in6 inp46_local; struct in6_addr inp6_local; } inp_dependladdr; struct { u_char inp4_ip_tos; /* type of service */ } inp_depend4; struct { u_int8_t inp6_hlim; int inp6_cksum; u_short inp6_ifindex; short inp6_hops; } inp_depend6; struct xsocket64 xi_socket; u_quad_t xi_alignment_hack; }; #endif /* XNU_TARGET_OS_OSX || KERNEL || !(TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) */ struct xinpgen { u_int32_t xig_len; /* length of this structure */ u_int xig_count; /* number of PCBs at this time */ inp_gen_t xig_gen; /* generation count at this time */ so_gen_t xig_sogen; /* current socket generation count */ }; #pragma pack() /* * These defines are for use with the inpcb. */ #define INP_IPV4 0x1 #define INP_IPV6 0x2 #define INP_V4MAPPEDV6 0x4 #define inp_faddr inp_dependfaddr.inp46_foreign.ia46_addr4 #define inp_laddr inp_dependladdr.inp46_local.ia46_addr4 #define in6p_faddr inp_dependfaddr.inp6_foreign #define in6p_laddr inp_dependladdr.inp6_local /* * Flags for inp_flags. * * Some of these are publicly defined for legacy reasons, as they are * (unfortunately) used by certain applications to determine, at compile * time, whether or not the OS supports certain features. */ #define INP_ANONPORT 0x00000040 /* port chosen for user */ #define IN6P_IPV6_V6ONLY 0x00008000 /* restrict AF_INET6 socket for v6 */ #define IN6P_BINDV6ONLY 0x01000000 /* do not grab IPv4 traffic */ #endif /* !_NETINET_IN_PCB_H_ */