Annotation of src/sys/netinet6/in6_pcb.h, Revision 1.11
1.11 ! itojun 1: /* $NetBSD: in6_pcb.h,v 1.10 2000/02/03 13:17:41 itojun Exp $ */
! 2: /* $KAME: in6_pcb.h,v 1.25 2000/06/05 00:41:58 itojun Exp $ */
1.3 thorpej 3:
1.2 itojun 4: /*
5: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6: * All rights reserved.
1.11 ! itojun 7: *
1.2 itojun 8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the project nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
1.11 ! itojun 19: *
1.2 itojun 20: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: /*
34: * Copyright (c) 1982, 1986, 1990, 1993
35: * The Regents of the University of California. All rights reserved.
36: *
37: * Redistribution and use in source and binary forms, with or without
38: * modification, are permitted provided that the following conditions
39: * are met:
40: * 1. Redistributions of source code must retain the above copyright
41: * notice, this list of conditions and the following disclaimer.
42: * 2. Redistributions in binary form must reproduce the above copyright
43: * notice, this list of conditions and the following disclaimer in the
44: * documentation and/or other materials provided with the distribution.
45: * 3. All advertising materials mentioning features or use of this software
46: * must display the following acknowledgement:
47: * This product includes software developed by the University of
48: * California, Berkeley and its contributors.
49: * 4. Neither the name of the University nor the names of its contributors
50: * may be used to endorse or promote products derived from this software
51: * without specific prior written permission.
52: *
53: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63: * SUCH DAMAGE.
64: *
65: * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
66: */
67:
68: #ifndef _NETINET6_IN6_PCB_H_
69: #define _NETINET6_IN6_PCB_H_
70:
71: #include <sys/queue.h>
72:
73: /*
74: * Common structure pcb for internet protocol implementation.
75: * Here are stored pointers to local and foreign host table
76: * entries, local and foreign socket numbers, and pointers
77: * up (to a socket structure) and down (to a protocol-specific)
78: * control block.
79: */
80: struct icmp6_filter;
1.8 itojun 81: struct inpcbpolicy;
1.2 itojun 82:
83: struct in6pcb {
84: struct in6pcb *in6p_next, *in6p_prev;
85: /* pointers to other pcb's */
86: struct in6pcb *in6p_head; /* pointer back to chain of
87: in6pcb's for this protocol */
88: struct in6_addr in6p_faddr; /* foreign host table entry */
1.10 itojun 89: u_int16_t in6p_fport; /* foreign port */
1.2 itojun 90: struct in6_addr in6p_laddr; /* local host table entry */
1.10 itojun 91: u_int16_t in6p_lport; /* local port */
1.5 itojun 92: u_int32_t in6p_flowinfo; /* priority and flowlabel */
1.2 itojun 93: struct socket *in6p_socket; /* back pointer to socket */
94: caddr_t in6p_ppcb; /* pointer to per-protocol pcb */
95: struct route_in6 in6p_route; /* placeholder for routing entry */
96: int in6p_flags; /* generic IP6/datagram flags */
97: int in6p_hops; /* default hop limit */
98: struct ip6_hdr in6p_ip6; /* header prototype */
99: struct mbuf *in6p_options; /* IP6 options */
100: struct ip6_pktopts *in6p_outputopts; /* IP6 options for outgoing packets */
101: struct ip6_moptions *in6p_moptions; /* IP6 multicast options */
102: u_short in6p_ifindex;
103: /* should move the following just after next/prev */
104: LIST_ENTRY(in6pcb) in6p_hlist; /* hash chain */
105: u_long in6p_hash; /* hash value */
106: #if 1 /*IPSEC*/
1.8 itojun 107: struct inpcbpolicy *in6p_sp; /* security policy. */
1.2 itojun 108: #endif
109: struct icmp6_filter *in6p_icmp6filt;
110: int in6p_cksum; /* IPV6_CHECKSUM setsockopt */
111: };
112:
113: #define in6p_ip6_nxt in6p_ip6.ip6_nxt /* for KAME src sync over BSD*'s */
114:
1.7 itojun 115: /*
116: * Flags in in6p_flags
117: * We define KAME's original flags in higher 16 bits as much as possible
118: * for compatibility with *bsd*s.
119: */
120: #define IN6P_RECVOPTS 0x001000 /* receive incoming IP6 options */
121: #define IN6P_RECVRETOPTS 0x002000 /* receive IP6 options for reply */
122: #define IN6P_RECVDSTADDR 0x004000 /* receive IP6 dst address */
123: #define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */
124: #define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */
125: #define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */
126: #define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */
127: #define IN6P_RTHDR 0x100000 /* receive routing header */
128: #define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */
129:
130: #define IN6P_HIGHPORT 0x1000000 /* user wants "high" port binding */
131: #define IN6P_LOWPORT 0x2000000 /* user wants "low" port binding */
132: #define IN6P_ANONPORT 0x4000000 /* port chosen for user */
133: #define IN6P_FAITH 0x8000000 /* accept FAITH'ed connections */
134: #define IN6P_BINDV6ONLY 0x10000000 /* do not grab IPv4 traffic */
135:
136: #define IN6P_CONTROLOPTS (IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
137: IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS)
138:
1.2 itojun 139:
140: #define IN6PLOOKUP_WILDCARD 1
141: #define IN6PLOOKUP_SETLOCAL 2
142:
143: /* compute hash value for foreign and local in6_addr and port */
144: #define IN6_HASH(faddr, fport, laddr, lport) \
145: (((faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^ \
146: (faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3] ^ \
147: (laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^ \
148: (laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3]) \
149: + (fport) + (lport))
150:
151: #define sotoin6pcb(so) ((struct in6pcb *)(so)->so_pcb)
152:
153: #ifdef _KERNEL
154: void in6_losing __P((struct in6pcb *));
155: int in6_pcballoc __P((struct socket *, struct in6pcb *));
1.11 ! itojun 156: int in6_pcbbind __P((struct in6pcb *, struct mbuf *, struct proc *));
1.2 itojun 157: int in6_pcbconnect __P((struct in6pcb *, struct mbuf *));
158: void in6_pcbdetach __P((struct in6pcb *));
159: void in6_pcbdisconnect __P((struct in6pcb *));
160: struct in6pcb *
161: in6_pcblookup __P((struct in6pcb *,
162: struct in6_addr *, u_int, struct in6_addr *,
163: u_int, int));
164: int in6_pcbnotify __P((struct in6pcb *, struct sockaddr *,
165: u_int, struct in6_addr *, u_int, int,
166: void (*)(struct in6pcb *, int)));
1.9 thorpej 167: void in6_pcbpurgeif __P((struct in6pcb *, struct ifnet *));
1.6 itojun 168: int in6_pcbsetport __P((struct in6_addr *, struct in6pcb *));
1.2 itojun 169: void in6_rtchange __P((struct in6pcb *, int));
170: void in6_setpeeraddr __P((struct in6pcb *, struct mbuf *));
171: void in6_setsockaddr __P((struct in6pcb *, struct mbuf *));
172: struct in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
1.6 itojun 173: struct ip6_pktopts *,
174: struct ip6_moptions *,
175: struct route_in6 *,
176: struct in6_addr *, int *));
177: int in6_selecthlim __P((struct in6pcb *, struct ifnet *));
1.2 itojun 178:
179: #ifndef TCP6
180: extern struct rtentry *
181: in6_pcbrtentry __P((struct in6pcb *));
182: extern struct in6pcb *in6_pcblookup_connect __P((struct in6pcb *,
1.4 itojun 183: struct in6_addr *, u_int, struct in6_addr *, u_int, int));
1.2 itojun 184: extern struct in6pcb *in6_pcblookup_bind __P((struct in6pcb *,
1.4 itojun 185: struct in6_addr *, u_int, int));
1.2 itojun 186: #endif
187: #endif /* _KERNEL */
188:
189: #endif /* !_NETINET6_IN6_PCB_H_ */
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