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1/*␊
2 * Copyright (c) 2000-2008 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 * Copyright (c) 1982, 1986, 1990, 1993␊
30 *␉The Regents of the University of California. All rights reserved.␊
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 * 3. All advertising materials mentioning features or use of this software␊
41 * must display the following acknowledgement:␊
42 *␉This product includes software developed by the University of␊
43 *␉California, Berkeley and its contributors.␊
44 * 4. Neither the name of the University nor the names of its contributors␊
45 * may be used to endorse or promote products derived from this software␊
46 * without specific prior written permission.␊
47 *␊
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND␊
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE␊
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE␊
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE␊
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL␊
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS␊
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)␊
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT␊
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY␊
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF␊
58 * SUCH DAMAGE.␊
59 *␊
60 *␉@(#)in_pcb.h␉8.1 (Berkeley) 6/10/93␊
61 * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.32.2.4 2001/08/13 16:26:17 ume Exp $␊
62 */␊
63/*␊
64 * NOTICE: This file was modified by SPARTA, Inc. in 2007 to introduce␊
65 * support for mandatory and extensible security protections. This notice␊
66 * is included in support of clause 2.2 (b) of the Apple Public License,␊
67 * Version 2.0.␊
68 */␊
69␊
70#ifndef _NETINET_IN_PCB_H_␊
71#define _NETINET_IN_PCB_H_␊
72#include <sys/appleapiopts.h>␊
73␊
74#include <sys/types.h>␊
75#include <sys/queue.h>␊
76␊
77#include <netinet6/ipsec.h> /* for IPSEC */␊
78␊
79typedef␉u_quad_t␉inp_gen_t;␊
80␊
81/*␊
82 * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.␊
83 * So, AF_INET6 null laddr is also used as AF_INET null laddr,␊
84 * by utilize following structure. (At last, same as INRIA)␊
85 */␊
86struct in_addr_4in6 {␊
87␉u_int32_t␉ia46_pad32[3];␊
88␉struct␉in_addr␉ia46_addr4;␊
89};␊
90␊
91␊
92/*␊
93 * The range of the generation count, as used in this implementation,␊
94 * is 9e19. We would have to create 300 billion connections per␊
95 * second for this number to roll over in a year. This seems sufficiently␊
96 * unlikely that we simply don't concern ourselves with that possibility.␊
97 */␊
98␊
99/*␊
100 * Interface exported to userland by various protocols which use␊
101 * inpcbs. Hack alert -- only define if struct xsocket is in scope.␊
102 */␊
103␊
104/*␊
105 * This is a copy of the inpcb as it shipped in Panther. This structure␊
106 * is filled out in a copy function. This allows the inpcb to change␊
107 * without breaking userland tools.␊
108 * ␊
109 * CAUTION: Many fields may not be filled out. Fewer may be filled out␊
110 * in the future. Code defensively.␊
111 */␊
112␊
113#pragma pack(4)␊
114␊
115#if defined(__LP64__)␊
116struct _inpcb_list_entry {␊
117 u_int32_t␉le_next;␊
118 u_int32_t␉le_prev;␊
119};␊
120#define _INPCB_PTR(x)␉␉u_int32_t␊
121#define _INPCB_LIST_ENTRY(x)␉struct _inpcb_list_entry␊
122#else␊
123#define _INPCB_PTR(x)␉␉x␊
124#define _INPCB_LIST_ENTRY(x)␉LIST_ENTRY(x)␉␊
125#endif␊
126␊
127struct inpcbinfo;␊
128struct inpcbport;␊
129struct mbuf;␊
130struct ip6_pktopts;␊
131struct ip6_moptions;␊
132struct icmp6_filter;␊
133struct inpcbpolicy;␊
134␊
135struct inpcb {␊
136␉_INPCB_LIST_ENTRY(inpcb) inp_hash;␉/* hash list */␊
137␉struct␉in_addr reserved1;␉/* APPLE reserved: inp_faddr defined in protcol indep. part */␊
138␉struct␉in_addr reserved2; /* APPLE reserved */␊
139␉u_short␉inp_fport;␉␉/* foreign port */␊
140␉u_short␉inp_lport;␉␉/* local port */␊
141␉_INPCB_LIST_ENTRY(inpcb) inp_list;␉/* list for all PCBs of this proto */␊
142␉_INPCB_PTR(caddr_t)␉inp_ppcb;␉/* pointer to per-protocol pcb */␊
143␉_INPCB_PTR(struct inpcbinfo *)␉inp_pcbinfo;␉/* PCB list info */␊
144␉_INPCB_PTR(void *)␉inp_socket;␉/* back pointer to socket */␊
145␉u_char␉nat_owner;␉␉/* Used to NAT TCP/UDP traffic */␊
146␉u_int32_t nat_cookie;␉␉/* Cookie stored and returned to NAT */␊
147␉_INPCB_LIST_ENTRY(inpcb) inp_portlist;␉/* list for this PCB's local port */␊
148␉_INPCB_PTR(struct inpcbport *)␉inp_phd;␉␉/* head of this list */␊
149␉inp_gen_t inp_gencnt;␉␉/* generation count of this instance */␊
150␉int␉inp_flags;␉␉/* generic IP/datagram flags */␊
151␉u_int32_t inp_flow;␊
152␊
153␉u_char␉inp_vflag;␊
154␊
155␉u_char inp_ip_ttl;␉␉/* time to live proto */␊
156␉u_char inp_ip_p;␉␉/* protocol proto */␊
157␉/* protocol dependent part */␊
158␉union {␊
159␉␉/* foreign host table entry */␊
160␉␉struct␉in_addr_4in6 inp46_foreign;␊
161␉␉struct␉in6_addr inp6_foreign;␊
162␉} inp_dependfaddr;␊
163␉union {␊
164␉␉/* local host table entry */␊
165␉␉struct␉in_addr_4in6 inp46_local;␊
166␉␉struct␉in6_addr inp6_local;␊
167␉} inp_dependladdr;␊
168␉union {␊
169␉␉/* placeholder for routing entry */␊
170␉␉u_char␉inp4_route[20];␊
171␉␉u_char␉inp6_route[32];␊
172␉} inp_dependroute;␊
173␉struct {␊
174␉␉/* type of service proto */␊
175␉␉u_char inp4_ip_tos;␊
176␉␉/* IP options */␊
177␉␉_INPCB_PTR(struct mbuf *) inp4_options;␊
178␉␉/* IP multicast options */␊
179␉␉_INPCB_PTR(struct ip_moptions *) inp4_moptions;␊
180␉} inp_depend4;␊
181␊
182␉struct {␊
183␉␉/* IP options */␊
184␉␉_INPCB_PTR(struct mbuf *)␉inp6_options;␊
185␉␉u_int8_t␉inp6_hlim;␊
186␉␉u_int8_t␉unused_uint8_1;␊
187␉␉ushort␉unused_uint16_1;␊
188␉␉/* IP6 options for outgoing packets */␊
189␉␉_INPCB_PTR(struct ip6_pktopts *)␉inp6_outputopts;␊
190␉␉/* IP multicast options */␊
191␉␉_INPCB_PTR(struct ip6_moptions *)␉inp6_moptions;␊
192␉␉/* ICMPv6 code type filter */␊
193␉␉_INPCB_PTR(struct icmp6_filter *)␉inp6_icmp6filt;␊
194␉␉/* IPV6_CHECKSUM setsockopt */␊
195␉␉int␉inp6_cksum;␊
196␉␉u_short␉inp6_ifindex;␊
197␉␉short␉inp6_hops;␊
198␉} inp_depend6;␊
199␊
200␉int␉hash_element; /* Array index of pcb's hash list */␊
201␉_INPCB_PTR(caddr_t)␉inp_saved_ppcb;␉/* place to save pointer while cached */␊
202␉_INPCB_PTR(struct inpcbpolicy *)␉inp_sp;␊
203␉u_int32_t␉reserved[3];␉/* For future use */␊
204};␊
205␊
206struct␉xinpcb {␊
207␉u_int32_t␉xi_len;␉␉/* length of this structure */␊
208␉struct␉inpcb xi_inp;␊
209␉struct␉xsocket xi_socket;␊
210␉u_quad_t␉xi_alignment_hack;␊
211};␊
212␊
213#if !CONFIG_EMBEDDED␊
214␊
215struct inpcb64_list_entry {␊
216 u_int64_t le_next;␊
217 u_int64_t le_prev;␊
218};␊
219␊
220struct␉xinpcb64 {␊
221␉u_int64_t␉␉xi_len;␉␉/* length of this structure */␊
222␉u_int64_t␉␉xi_inpp;␊
223␉u_short ␉␉inp_fport;␉/* foreign port */␊
224␉u_short␉␉␉inp_lport;␉/* local port */␊
225␉struct inpcb64_list_entry␉␊
226␉␉␉␉inp_list;␉/* list for all PCBs of this proto */␊
227␉u_int64_t␉␉inp_ppcb;␉/* pointer to per-protocol pcb */␊
228␉u_int64_t␉␉inp_pcbinfo;␉/* PCB list info */␊
229␉struct inpcb64_list_entry␉␊
230␉␉␉␉inp_portlist;␉/* list for this PCB's local port */␊
231␉u_int64_t␉␉inp_phd;␉/* head of this list */␊
232␉inp_gen_t␉␉inp_gencnt;␉/* generation count of this instance */␊
233␉int␉␉␉inp_flags;␉/* generic IP/datagram flags */␊
234␉u_int32_t␉␉inp_flow;␊
235␉u_char␉␉␉inp_vflag;␊
236␉u_char␉␉␉inp_ip_ttl;␉/* time to live */␊
237␉u_char␉␉␉inp_ip_p;␉/* protocol */␊
238 union {␉␉␉␉␉/* foreign host table entry */␊
239 struct in_addr_4in6␉inp46_foreign;␊
240 struct in6_addr␉inp6_foreign;␊
241 }␉␉␉inp_dependfaddr;␊
242 union {␉␉␉␉␉/* local host table entry */␊
243 struct in_addr_4in6␉inp46_local;␊
244 struct in6_addr␉inp6_local;␊
245 }␉␉␉inp_dependladdr;␊
246 struct {␊
247 u_char␉␉inp4_ip_tos;␉/* type of service */␊
248 }␉␉␉inp_depend4;␊
249 struct {␊
250 u_int8_t inp6_hlim;␊
251␉␉int␉␉inp6_cksum;␊
252 u_short␉␉inp6_ifindex;␊
253 short ␉inp6_hops;␊
254 }␉␉␉inp_depend6;␊
255 struct xsocket64 xi_socket;␊
256␉u_quad_t␉␉xi_alignment_hack;␊
257};␊
258␊
259#endif /* !CONFIG_EMBEDDED */␊
260␊
261struct␉xinpgen {␊
262␉u_int32_t xig_len;␉/* length of this structure */␊
263␉u_int␉xig_count;␉/* number of PCBs at this time */␊
264␉inp_gen_t xig_gen;␉/* generation count at this time */␊
265␉so_gen_t xig_sogen;␉/* socket generation count at this time */␊
266};␊
267␊
268#pragma pack()␊
269␊
270/*␊
271 * These defines are for use with the inpcb.␊
272 */␊
273#define INP_IPV4␉0x1␊
274#define INP_IPV6␉0x2␊
275#define␉inp_faddr␉inp_dependfaddr.inp46_foreign.ia46_addr4␊
276#define␉inp_laddr␉inp_dependladdr.inp46_local.ia46_addr4␊
277#define␉inp_route␉inp_dependroute.inp4_route␊
278#define␉inp_ip_tos␉inp_depend4.inp4_ip_tos␊
279#define␉inp_options␉inp_depend4.inp4_options␊
280#define␉inp_moptions␉inp_depend4.inp4_moptions␊
281#define␉in6p_faddr␉inp_dependfaddr.inp6_foreign␊
282#define␉in6p_laddr␉inp_dependladdr.inp6_local␊
283#define␉in6p_route␉inp_dependroute.inp6_route␊
284#define␉in6p_ip6_hlim␉inp_depend6.inp6_hlim␊
285#define␉in6p_hops␉inp_depend6.inp6_hops␉/* default hop limit */␊
286#define␉in6p_ip6_nxt␉inp_ip_p␊
287#define␉in6p_flowinfo␉inp_flow␊
288#define␉in6p_vflag␉inp_vflag␊
289#define␉in6p_options␉inp_depend6.inp6_options␊
290#define␉in6p_outputopts␉inp_depend6.inp6_outputopts␊
291#define␉in6p_moptions␉inp_depend6.inp6_moptions␊
292#define␉in6p_icmp6filt␉inp_depend6.inp6_icmp6filt␊
293#define␉in6p_cksum␉inp_depend6.inp6_cksum␊
294#define␉in6p_ifindex␉inp_depend6.inp6_ifindex␊
295#define␉in6p_flags␉inp_flags /* for KAME src sync over BSD*'s */␊
296#define␉in6p_socket␉inp_socket /* for KAME src sync over BSD*'s */␊
297#define␉in6p_lport␉inp_lport /* for KAME src sync over BSD*'s */␊
298#define␉in6p_fport␉inp_fport /* for KAME src sync over BSD*'s */␊
299#define␉in6p_ppcb␉inp_ppcb /* for KAME src sync over BSD*'s */␊
300#define␉in6p_state␉inp_state␊
301#define␉in6p_wantcnt␉inp_wantcnt␊
302␊
303␊
304/* flags in inp_flags: */␊
305#define␉INP_RECVOPTS␉␉0x01␉/* receive incoming IP options */␊
306#define␉INP_RECVRETOPTS␉␉0x02␉/* receive IP options for reply */␊
307#define␉INP_RECVDSTADDR␉␉0x04␉/* receive IP dst address */␊
308#define␉INP_HDRINCL␉␉0x08␉/* user supplies entire IP header */␊
309#define␉INP_HIGHPORT␉␉0x10␉/* user wants "high" port binding */␊
310#define␉INP_LOWPORT␉␉0x20␉/* user wants "low" port binding */␊
311#define␉INP_ANONPORT␉␉0x40␉/* port chosen for user */␊
312#define␉INP_RECVIF␉␉0x80␉/* receive incoming interface */␊
313#define␉INP_MTUDISC␉␉0x100␉/* user can do MTU discovery */␊
314#ifdef __APPLE__␊
315#define INP_STRIPHDR␉␉0x200␉/* Strip headers in raw_ip, for OT support */␊
316#endif␊
317#define INP_FAITH␉␉␉0x400 /* accept FAITH'ed connections */␊
318#define INP_INADDR_ANY ␉0x800 /* local address wasn't specified */␊
319␊
320#define INP_RECVTTL␉␉0x1000␊
321#define␉INP_UDP_NOCKSUM␉␉0x2000␉/* Turn off outbound UDP checksum */␊
322#define␉INP_BOUND_IF␉␉0x4000␉/* bind socket to an ifindex */␊
323␊
324#define IN6P_IPV6_V6ONLY␉0x008000 /* restrict AF_INET6 socket for v6 */␊
325␊
326#define␉IN6P_PKTINFO␉␉0x010000 /* receive IP6 dst and I/F */␊
327#define␉IN6P_HOPLIMIT␉␉0x020000 /* receive hoplimit */␊
328#define␉IN6P_HOPOPTS␉␉0x040000 /* receive hop-by-hop options */␊
329#define␉IN6P_DSTOPTS␉␉0x080000 /* receive dst options after rthdr */␊
330#define␉IN6P_RTHDR␉␉␉0x100000 /* receive routing header */␊
331#define␉IN6P_RTHDRDSTOPTS␉0x200000 /* receive dstoptions before rthdr */␊
332#define␉IN6P_TCLASS␉␉␉0x400000 /* receive traffic class value */␊
333#define␉IN6P_AUTOFLOWLABEL␉0x800000 /* attach flowlabel automatically */␊
334#define␉IN6P_BINDV6ONLY␉␉0x10000000 /* do not grab IPv4 traffic */␊
335␊
336␊
337#endif /* !_NETINET_IN_PCB_H_ */␊
338

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