1 //==========================================================================
3 // include/netinet/in_pcb.h
7 //==========================================================================
8 //####BSDCOPYRIGHTBEGIN####
10 // -------------------------------------------
12 // Portions of this software may have been derived from OpenBSD or other sources,
13 // and are covered by the appropriate copyright disclaimers included herein.
15 // -------------------------------------------
17 //####BSDCOPYRIGHTEND####
18 //==========================================================================
19 //#####DESCRIPTIONBEGIN####
22 // Contributors: gthomas
28 //####DESCRIPTIONEND####
30 //==========================================================================
33 /* $OpenBSD: in_pcb.h,v 1.19 1999/12/12 12:10:43 itojun Exp $ */
34 /* $NetBSD: in_pcb.h,v 1.14 1996/02/13 23:42:00 christos Exp $ */
37 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
38 * All rights reserved.
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
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44 * notice, this list of conditions and the following disclaimer.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 * 3. Neither the name of the project nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
66 * Copyright (c) 1982, 1986, 1990, 1993
67 * The Regents of the University of California. All rights reserved.
69 * Redistribution and use in source and binary forms, with or without
70 * modification, are permitted provided that the following conditions
72 * 1. Redistributions of source code must retain the above copyright
73 * notice, this list of conditions and the following disclaimer.
74 * 2. Redistributions in binary form must reproduce the above copyright
75 * notice, this list of conditions and the following disclaimer in the
76 * documentation and/or other materials provided with the distribution.
77 * 3. All advertising materials mentioning features or use of this software
78 * must display the following acknowledgement:
79 * This product includes software developed by the University of
80 * California, Berkeley and its contributors.
81 * 4. Neither the name of the University nor the names of its contributors
82 * may be used to endorse or promote products derived from this software
83 * without specific prior written permission.
85 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
86 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
87 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
88 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
89 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
90 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
91 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
92 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
93 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
94 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
97 * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
100 #ifndef _NETINET_IN_PCB_H_
101 #define _NETINET_IN_PCB_H_
103 #include <sys/queue.h>
105 #include <netinet6/ipsec.h>
107 #include <netinet6/ip6.h>
108 #include <netinet6/ip6_var.h>
109 #include <netinet6/icmp6.h>
110 #include <netinet/ip_ipsp.h>
113 struct in6_addr iau_addr6;
116 struct in_addr inaddr; /* easier transition */
121 * Common structure pcb for internet protocol implementation.
122 * Here are stored pointers to local and foreign host table
123 * entries, local and foreign socket numbers, and pointers
124 * up (to a socket structure) and down (to a protocol-specific)
128 LIST_ENTRY(inpcb) inp_hash;
129 CIRCLEQ_ENTRY(inpcb) inp_queue;
130 struct inpcbtable *inp_table;
131 union inpaddru inp_faddru; /* Foreign address. */
132 union inpaddru inp_laddru; /* Local address. */
133 #define inp_faddr inp_faddru.iau_a4u.inaddr
134 #define inp_faddr6 inp_faddru.iau_addr6
135 #define inp_laddr inp_laddru.iau_a4u.inaddr
136 #define inp_laddr6 inp_laddru.iau_addr6
137 u_int16_t inp_fport; /* foreign port */
138 u_int16_t inp_lport; /* local port */
139 struct socket *inp_socket; /* back pointer to socket */
140 caddr_t inp_ppcb; /* pointer to per-protocol pcb */
141 union { /* Route (notice increased size). */
142 struct route ru_route;
143 struct route_in6 ru_route6;
145 #define inp_route inp_ru.ru_route
146 #define inp_route6 inp_ru.ru_route6
147 int inp_flags; /* generic IP/datagram flags */
148 union { /* Header prototype. */
150 struct ip6_hdr hu_ipv6;
152 #define inp_ip inp_hu.hu_ip
153 #define inp_ipv6 inp_hu.hu_ipv6
154 struct mbuf *inp_options; /* IP options */
155 struct ip6_pktopts *inp_outputopts6; /* IP6 options for outgoing packets */
158 struct ip_moptions *mou_mo; /* IPv4 multicast options */
159 struct ip6_moptions *mou_mo6; /* IPv6 multicast options */
161 #define inp_moptions inp_mou.mou_mo
162 #define inp_moptions6 inp_mou.mou_mo6
163 u_char inp_seclevel[3]; /* Only the first 3 are used for now */
164 #define SL_AUTH 0 /* Authentication level */
165 #define SL_ESP_TRANS 1 /* ESP transport level */
166 #define SL_ESP_NETWORK 2 /* ESP network (encapsulation) level */
167 u_int8_t inp_secrequire:4, /* Condensed State from above */
168 inp_secresult:4; /* Result from Key Management */
169 #define SR_FAILED 1 /* Negotiation failed permanently */
170 #define SR_SUCCESS 2 /* SA successfully established */
171 #define SR_WAIT 3 /* Waiting for SA */
172 TAILQ_ENTRY(inpcb) inp_tdb_next;
173 struct tdb *inp_tdb; /* If tdb_dst matches our dst, use */
174 int inp_fflowinfo; /* Foreign flowlabel & priority */
176 struct icmp6_filter *inp_icmp6filt;
178 struct secpolicy *inp_sp; /* security policy. It may not be
179 * used according to policy selection.
185 CIRCLEQ_HEAD(, inpcb) inpt_queue;
186 LIST_HEAD(inpcbhead, inpcb) *inpt_hashtbl;
188 u_int16_t inpt_lastport;
191 /* flags in inp_flags: */
192 #define INP_RECVOPTS 0x001 /* receive incoming IP options */
193 #define INP_RECVRETOPTS 0x002 /* receive IP options for reply */
194 #define INP_RECVDSTADDR 0x004 /* receive IP dst address */
196 #define INP_RXDSTOPTS INP_RECVOPTS
197 #define INP_RXHOPOPTS INP_RECVRETOPTS
198 #define INP_RXINFO INP_RECVDSTADDR
199 #define INP_RXSRCRT 0x010
200 #define INP_HOPLIMIT 0x020
202 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR| \
203 INP_RXSRCRT|INP_HOPLIMIT)
205 #define INP_HDRINCL 0x008 /* user supplies entire IP header */
206 #define INP_HIGHPORT 0x010 /* user wants "high" port binding */
207 #define INP_LOWPORT 0x020 /* user wants "low" port binding */
210 * These flags' values should be determined by either the transport
211 * protocol at PRU_BIND, PRU_LISTEN, PRU_CONNECT, etc, or by in_pcb*().
213 #define INP_IPV6 0x100 /* sotopf(inp->inp_socket) == PF_INET6 */
214 #define INP_IPV6_UNDEC 0x200 /* PCB is PF_INET6, but listens for V4/V6 */
215 #define INP_IPV6_MAPPED 0x400 /* PF_INET6 PCB which is connected to
216 * an IPv4 host, or is bound to
217 * an IPv4 address (specified with
218 * the mapped form of v6 addresses) */
219 #define INP_IPV6_MCAST 0x800 /* Set if inp_moptions points to ipv6 ones */
222 /* flags in in6p_flags */
223 #define IN6P_RECVOPTS INP_RECVOPTS /* receive incoming IP6 options */
224 #define IN6P_RECVRETOPTS INP_RECVRETOPTS /* receive IP6 options for reply */
225 #define IN6P_RECVDSTADDR INP_RECVDSTADDR /* receive IP6 dst address */
226 #define IN6P_HIGHPORT INP_HIGHPORT /* user wants "high" port binding */
227 #define IN6P_LOWPORT INP_LOWPORT /* user wants "low" port binding */
228 #define IN6P_ANONPORT 0x40 /* port chosen for user */
229 #define IN6P_FAITH 0x80 /* accept FAITH'ed connections */
230 #define IN6P_PKTINFO 0x010000
231 #define IN6P_HOPLIMIT 0x020000
232 #define IN6P_NEXTHOP 0x040000
233 #define IN6P_HOPOPTS 0x080000
234 #define IN6P_DSTOPTS 0x100000
235 #define IN6P_RTHDR 0x200000
236 #define IN6P_CONTROLOPTS (0x3f0000 | IN6P_RECVOPTS | IN6P_RECVRETOPTS | IN6P_RECVDSTADDR)
239 #define INPLOOKUP_WILDCARD 1
240 #define INPLOOKUP_SETLOCAL 2
241 #define INPLOOKUP_IPV6 4
243 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
245 /* macros for handling bitmap of ports not to allocate dynamically */
246 #define DP_MAPBITS (sizeof(u_int32_t) * NBBY)
247 #define DP_MAPSIZE (howmany(IPPORT_RESERVED/2, DP_MAPBITS))
248 #define DP_SET(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] |= (1 << ((p) % DP_MAPBITS)))
249 #define DP_CLR(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] &= ~(1 << ((p) % DP_MAPBITS)))
250 #define DP_ISSET(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] & (1 << ((p) % DP_MAPBITS)))
252 /* default values for baddynamicports [see ip_init()] */
253 #define DEFBADDYNAMICPORTS_TCP { 749, 750, 751, 760, 761, 871, 0 }
254 #define DEFBADDYNAMICPORTS_UDP { 750, 751, 0 }
256 struct baddynamicports {
257 u_int32_t tcp[DP_MAPSIZE];
258 u_int32_t udp[DP_MAPSIZE];
263 #define sotopf(so) (so->so_proto->pr_domain->dom_family)
265 void in_losing __P((struct inpcb *));
266 int in_pcballoc __P((struct socket *, void *));
267 int in_pcbbind __P((void *, struct mbuf *));
268 int in_pcbconnect __P((void *, struct mbuf *));
269 void in_pcbdetach __P((void *));
270 void in_pcbdisconnect __P((void *));
272 in_pcbhashlookup __P((struct inpcbtable *, struct in_addr,
273 u_int, struct in_addr, u_int));
276 in6_pcbhashlookup __P((struct inpcbtable *, struct in6_addr *,
277 u_int, struct in6_addr *, u_int));
278 int in6_pcbbind __P((struct inpcb *, struct mbuf *));
279 int in6_pcbconnect __P((struct inpcb *, struct mbuf *));
280 int in6_setsockaddr __P((struct inpcb *, struct mbuf *));
281 int in6_setpeeraddr __P((struct inpcb *, struct mbuf *));
283 void in_pcbinit __P((struct inpcbtable *, int));
285 in_pcblookup __P((struct inpcbtable *, void *, u_int, void *,
287 void in_pcbnotify __P((struct inpcbtable *, struct sockaddr *,
288 u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)));
289 void in_pcbnotifyall __P((struct inpcbtable *, struct sockaddr *,
290 int, void (*)(struct inpcb *, int)));
291 void in_pcbrehash __P((struct inpcb *));
292 void in_rtchange __P((struct inpcb *, int));
293 void in_setpeeraddr __P((struct inpcb *, struct mbuf *));
294 void in_setsockaddr __P((struct inpcb *, struct mbuf *));
295 int in_baddynamic __P((u_int16_t, u_int16_t));
296 extern struct sockaddr_in *in_selectsrc __P((struct sockaddr_in *,
297 struct route *, int, struct ip_moptions *, int *));
300 int in6_pcbnotify __P((struct inpcbtable *, struct sockaddr *,
301 u_int, struct in6_addr *, u_int, int,
302 void (*)(struct inpcb *, int)));
303 struct in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
304 struct ip6_pktopts *,
305 struct ip6_moptions *,
307 struct in6_addr *, int *));
308 int in6_selecthlim __P((struct inpcb *, struct ifnet *));
311 #endif // _NETINET_IN_PCB_H_