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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1982, 1986, 1990 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | * | |
38e82238 | 33 | * from: @(#)in_pcb.h 7.6 (Berkeley) 6/28/90 |
4c45483e | 34 | * $Id: in_pcb.h,v 1.4 1993/11/18 00:08:16 wollman Exp $ |
15637ed4 RG |
35 | */ |
36 | ||
8ace4366 GW |
37 | #ifndef _NETINET_IN_PCB_H_ |
38 | #define _NETINET_IN_PCB_H_ 1 | |
39 | ||
15637ed4 RG |
40 | /* |
41 | * Common structure pcb for internet protocol implementation. | |
42 | * Here are stored pointers to local and foreign host table | |
43 | * entries, local and foreign socket numbers, and pointers | |
44 | * up (to a socket structure) and down (to a protocol-specific) | |
45 | * control block. | |
46 | */ | |
47 | struct inpcb { | |
48 | struct inpcb *inp_next,*inp_prev; | |
49 | /* pointers to other pcb's */ | |
50 | struct inpcb *inp_head; /* pointer back to chain of inpcb's | |
51 | for this protocol */ | |
52 | struct in_addr inp_faddr; /* foreign host table entry */ | |
53 | u_short inp_fport; /* foreign port */ | |
54 | struct in_addr inp_laddr; /* local host table entry */ | |
55 | u_short inp_lport; /* local port */ | |
56 | struct socket *inp_socket; /* back pointer to socket */ | |
57 | caddr_t inp_ppcb; /* pointer to per-protocol pcb */ | |
58 | struct route inp_route; /* placeholder for routing entry */ | |
59 | int inp_flags; /* generic IP/datagram flags */ | |
60 | struct ip inp_ip; /* header prototype; should have more */ | |
61 | struct mbuf *inp_options; /* IP options */ | |
2cb63509 GW |
62 | #ifdef MTUDISC |
63 | int inp_pmtu; /* path mtu if INP_MTUDISCOVERED */ | |
64 | int inp_mtutimer; /* decremented once a minute to | |
65 | try to increase mtu */ | |
66 | int (*inp_mtunotify)(struct inpcb *, int); | |
67 | /* function to call when MTU may have | |
68 | * changed */ | |
69 | #endif /* MTUDISC */ | |
15637ed4 RG |
70 | }; |
71 | ||
72 | /* flags in inp_flags: */ | |
73 | #define INP_RECVOPTS 0x01 /* receive incoming IP options */ | |
74 | #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ | |
75 | #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ | |
2cb63509 GW |
76 | #ifdef MTUDISC |
77 | #define INP_DISCOVERMTU 0x08 /* practice Path MTU discovery */ | |
78 | #define INP_MTUDISCOVERED 0x10 /* we were able to get such a route */ | |
79 | #endif /* MTUDISC */ | |
15637ed4 RG |
80 | #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR) |
81 | ||
82 | #ifdef sotorawcb | |
83 | /* | |
84 | * Common structure pcb for raw internet protocol access. | |
85 | * Here are internet specific extensions to the raw control block, | |
86 | * and space is allocated to the necessary sockaddrs. | |
87 | */ | |
88 | struct raw_inpcb { | |
89 | struct rawcb rinp_rcb; /* common control block prefix */ | |
90 | struct mbuf *rinp_options; /* IP options */ | |
91 | int rinp_flags; /* flags, e.g. raw sockopts */ | |
92 | #define RINPF_HDRINCL 0x1 /* user supplies entire IP header */ | |
93 | struct sockaddr_in rinp_faddr; /* foreign address */ | |
94 | struct sockaddr_in rinp_laddr; /* local address */ | |
95 | struct route rinp_route; /* placeholder for routing entry */ | |
96 | }; | |
97 | #endif | |
98 | ||
99 | #define INPLOOKUP_WILDCARD 1 | |
100 | #define INPLOOKUP_SETLOCAL 2 | |
101 | ||
102 | #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) | |
103 | #define sotorawinpcb(so) ((struct raw_inpcb *)(so)->so_pcb) | |
104 | ||
105 | #ifdef KERNEL | |
4c45483e GW |
106 | /* From in_pcb.h: */ |
107 | extern int in_pcballoc(struct socket *, struct inpcb *); | |
108 | extern int in_pcbbind(struct inpcb *, struct mbuf *); | |
109 | extern int in_pcbconnect(struct inpcb *, struct mbuf *); | |
110 | extern void in_pcbdisconnect(struct inpcb *); | |
111 | extern void in_pcbdetach(struct inpcb *); | |
112 | extern void in_setsockaddr(struct inpcb *, struct mbuf *); | |
113 | extern void in_setpeeraddr(struct inpcb *, struct mbuf *); | |
114 | extern void in_pcbnotify(struct inpcb *, struct sockaddr *, int, struct in_addr, int, int, void (*)(struct inpcb *, int)); | |
115 | extern void in_losing(struct inpcb *); | |
116 | extern void in_rtchange(struct inpcb *, int); | |
117 | extern struct inpcb *in_pcblookup(struct inpcb *, struct in_addr, int, struct in_addr, int, int); | |
118 | ||
119 | ||
2cb63509 GW |
120 | #ifdef MTUDISC |
121 | extern void in_pcbmtu(struct inpcb *); | |
122 | extern void in_mtunotify(struct inpcb *); | |
123 | extern void in_bumpmtu(struct inpcb *); | |
124 | #endif /* MTUDISC */ | |
125 | #endif /* KERNEL */ | |
8ace4366 | 126 | #endif /* _NETINET_IN_PCB_H_ */ |