1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
|
/* $OpenBSD: in_pcb.h,v 1.62 2008/05/15 19:40:38 markus Exp $ */
/* $NetBSD: in_pcb.h,v 1.14 1996/02/13 23:42:00 christos Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
*/
/*
* 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. 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
*/
#ifndef _NETINET_IN_PCB_H_
#define _NETINET_IN_PCB_H_
#include <sys/queue.h>
#include <netinet/ip6.h>
#include <netinet6/ip6_var.h>
#include <netinet/icmp6.h>
#include <netinet/ip_ipsp.h>
union inpaddru {
struct in6_addr iau_addr6;
struct {
uint8_t pad[12];
struct in_addr inaddr; /* easier transition */
} iau_a4u;
};
/*
* Common structure pcb for internet protocol implementation.
* Here are stored pointers to local and foreign host table
* entries, local and foreign socket numbers, and pointers
* up (to a socket structure) and down (to a protocol-specific)
* control block.
*/
struct inpcb {
LIST_ENTRY(inpcb) inp_hash;
LIST_ENTRY(inpcb) inp_lhash; /* extra hash for lport */
CIRCLEQ_ENTRY(inpcb) inp_queue;
struct inpcbtable *inp_table;
union inpaddru inp_faddru; /* Foreign address. */
union inpaddru inp_laddru; /* Local address. */
#define inp_faddr inp_faddru.iau_a4u.inaddr
#define inp_faddr6 inp_faddru.iau_addr6
#define inp_laddr inp_laddru.iau_a4u.inaddr
#define inp_laddr6 inp_laddru.iau_addr6
u_int16_t inp_fport; /* foreign port */
u_int16_t inp_lport; /* local port */
struct socket *inp_socket; /* back pointer to socket */
caddr_t inp_ppcb; /* pointer to per-protocol pcb */
union { /* Route (notice increased size). */
struct route ru_route;
struct route_in6 ru_route6;
} inp_ru;
#define inp_route inp_ru.ru_route
#define inp_route6 inp_ru.ru_route6
int inp_flags; /* generic IP/datagram flags */
union { /* Header prototype. */
struct ip hu_ip;
struct ip6_hdr hu_ipv6;
} inp_hu;
#define inp_ip inp_hu.hu_ip
#define inp_ipv6 inp_hu.hu_ipv6
struct mbuf *inp_options; /* IP options */
struct ip6_pktopts *inp_outputopts6; /* IP6 options for outgoing packets */
int inp_hops;
union {
struct ip_moptions *mou_mo; /* IPv4 multicast options */
struct ip6_moptions *mou_mo6; /* IPv6 multicast options */
} inp_mou;
#define inp_moptions inp_mou.mou_mo
#define inp_moptions6 inp_mou.mou_mo6
u_char inp_seclevel[4];
#define SL_AUTH 0 /* Authentication level */
#define SL_ESP_TRANS 1 /* ESP transport level */
#define SL_ESP_NETWORK 2 /* ESP network (encapsulation) level */
#define SL_IPCOMP 3 /* Compression level */
u_int inp_secrequire:4, /* Condensed State from above */
inp_secresult:4; /* Result from Key Management */
#define SR_FAILED 1 /* Negotiation failed permanently */
#define SR_SUCCESS 2 /* SA successfully established */
#define SR_WAIT 3 /* Waiting for SA */
u_char inp_ip_minttl; /* minimum TTL or drop */
TAILQ_ENTRY(inpcb) inp_tdb_in_next, inp_tdb_out_next;
struct tdb *inp_tdb_in, *inp_tdb_out;
struct ipsec_policy *inp_ipo;
struct ipsec_ref *inp_ipsec_remotecred;
struct ipsec_ref *inp_ipsec_remoteauth;
#define inp_flowinfo inp_hu.hu_ipv6.ip6_flow
int in6p_cksum;
#ifndef _KERNEL
#define inp_csumoffset in6p_cksum
#endif
struct icmp6_filter *inp_icmp6filt;
};
struct inpcbtable {
CIRCLEQ_HEAD(, inpcb) inpt_queue;
LIST_HEAD(inpcbhead, inpcb) *inpt_hashtbl, *inpt_lhashtbl;
u_long inpt_hash, inpt_lhash;
u_int16_t inpt_lastport;
};
/* flags in inp_flags: */
#define INP_RECVOPTS 0x001 /* receive incoming IP options */
#define INP_RECVRETOPTS 0x002 /* receive IP options for reply */
#define INP_RECVDSTADDR 0x004 /* receive IP dst address */
#define INP_RXDSTOPTS INP_RECVOPTS
#define INP_RXHOPOPTS INP_RECVRETOPTS
#define INP_RXINFO INP_RECVDSTADDR
#define INP_RXSRCRT 0x010
#define INP_HOPLIMIT 0x020
#define INP_HDRINCL 0x008 /* user supplies entire IP header */
#define INP_HIGHPORT 0x010 /* user wants "high" port binding */
#define INP_LOWPORT 0x020 /* user wants "low" port binding */
#define INP_RECVIF 0x080 /* receive incoming interface */
#define INP_RECVTTL 0x040 /* receive incoming IP TTL */
#define INP_RECVDSTPORT 0x200 /* receive IP dst addr before rdr */
#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR| \
INP_RXSRCRT|INP_HOPLIMIT|INP_RECVIF|INP_RECVTTL|INP_RECVDSTPORT)
/*
* These flags' values should be determined by either the transport
* protocol at PRU_BIND, PRU_LISTEN, PRU_CONNECT, etc, or by in_pcb*().
*/
#define INP_IPV6 0x100 /* sotopf(inp->inp_socket) == PF_INET6 */
#if 1 /*KAME*/
/*
* Flags in in6p_flags
* We define KAME's original flags in higher 16 bits as much as possible
* for compatibility with *bsd*s.
* XXX: Should IN6P_HIGHPORT and IN6P_LOWPORT be moved as well?
*/
#define IN6P_HIGHPORT INP_HIGHPORT /* user wants "high" port */
#define IN6P_LOWPORT INP_LOWPORT /* user wants "low" port */
#define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */
#define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */
#define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */
#define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */
#define IN6P_RTHDR 0x100000 /* receive routing header */
#define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */
#define IN6P_TCLASS 0x400000 /* receive traffic class value */
#define IN6P_AUTOFLOWLABEL 0x800000 /* attach flowlabel automatically */
#define IN6P_ANONPORT 0x4000000 /* port chosen for user */
#define IN6P_FAITH 0x8000000 /* accept FAITH'ed connections */
#define IN6P_RFC2292 0x40000000 /* used RFC2292 API on the socket */
#define IN6P_MTU 0x80000000 /* receive path MTU */
#define IN6P_MINMTU 0x20000000 /* use minimum MTU */
#define IN6P_CONTROLOPTS (IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\
IN6P_MTU)
#endif
#define INPLOOKUP_WILDCARD 1
#define INPLOOKUP_SETLOCAL 2
#define INPLOOKUP_IPV6 4
#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
/* macros for handling bitmap of ports not to allocate dynamically */
#define DP_MAPBITS (sizeof(u_int32_t) * NBBY)
#define DP_MAPSIZE (howmany(IPPORT_RESERVED/2, DP_MAPBITS))
#define DP_SET(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] |= (1 << ((p) % DP_MAPBITS)))
#define DP_CLR(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] &= ~(1 << ((p) % DP_MAPBITS)))
#define DP_ISSET(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] & (1 << ((p) % DP_MAPBITS)))
/* default values for baddynamicports [see ip_init()] */
#define DEFBADDYNAMICPORTS_TCP { 587, 749, 750, 751, 871, 0 }
#define DEFBADDYNAMICPORTS_UDP { 623, 664, 749, 750, 751, 0 }
struct baddynamicports {
u_int32_t tcp[DP_MAPSIZE];
u_int32_t udp[DP_MAPSIZE];
};
#ifdef _KERNEL
#define sotopf(so) (so->so_proto->pr_domain->dom_family)
void in_losing(struct inpcb *);
int in_pcballoc(struct socket *, void *);
int in_pcbbind(void *, struct mbuf *);
int in_pcbconnect(void *, struct mbuf *);
void in_pcbdetach(void *);
void in_pcbdisconnect(void *);
struct inpcb *
in_pcbhashlookup(struct inpcbtable *, struct in_addr,
u_int, struct in_addr, u_int);
struct inpcb *
in_pcblookup_listen(struct inpcbtable *, struct in_addr, u_int, int,
struct mbuf *);
#ifdef INET6
struct inpcb *
in6_pcbhashlookup(struct inpcbtable *, struct in6_addr *,
u_int, struct in6_addr *, u_int);
struct inpcb *
in6_pcblookup_listen(struct inpcbtable *,
struct in6_addr *, u_int, int, struct mbuf *);
int in6_pcbbind(struct inpcb *, struct mbuf *);
int in6_pcbconnect(struct inpcb *, struct mbuf *);
int in6_setsockaddr(struct inpcb *, struct mbuf *);
int in6_setpeeraddr(struct inpcb *, struct mbuf *);
#endif /* INET6 */
void in_pcbinit(struct inpcbtable *, int);
struct inpcb *
in_pcblookup(struct inpcbtable *, void *, u_int, void *,
u_int, int);
void in_pcbnotifyall(struct inpcbtable *, struct sockaddr *,
int, void (*)(struct inpcb *, int));
void in_pcbrehash(struct inpcb *);
void in_rtchange(struct inpcb *, int);
void in_setpeeraddr(struct inpcb *, struct mbuf *);
void in_setsockaddr(struct inpcb *, struct mbuf *);
int in_baddynamic(u_int16_t, u_int16_t);
extern struct sockaddr_in *in_selectsrc(struct sockaddr_in *,
struct route *, int, struct ip_moptions *, int *);
struct rtentry *
in_pcbrtentry(struct inpcb *);
/* INET6 stuff */
int in6_pcbnotify(struct inpcbtable *, struct sockaddr *,
u_int, struct sockaddr *, u_int, int, void *,
void (*)(struct inpcb *, int));
int in6_selecthlim(struct inpcb *, struct ifnet *);
int in6_pcbsetport(struct in6_addr *, struct inpcb *, struct proc *);
#endif /* _KERNEL */
#endif /* _NETINET_IN_PCB_H_ */
|
