source: rtems/cpukit/libnetworking/netinet/in_pcb.h @ b91ebbc

4.104.114.84.9
Last change on this file since b91ebbc was b91ebbc, checked in by Ralf Corsepius <ralf.corsepius@…>, on Mar 25, 2007 at 7:54:29 AM

Partial updates from FreeBSD.

  • Property mode set to 100644
File size: 5.6 KB
Line 
1/*
2 * Copyright (c) 1982, 1986, 1990, 1993
3 *      The Regents of the University of California.  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 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *      @(#)in_pcb.h    8.1 (Berkeley) 6/10/93
30 * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.89 2006/07/18 22:34:27 ups Exp $
31 */
32
33/*
34 * $Id$
35 */
36
37#ifndef _NETINET_IN_PCB_H_
38#define _NETINET_IN_PCB_H_
39
40#include <sys/queue.h>
41
42/*
43 * Common structure pcb for internet protocol implementation.
44 * Here are stored pointers to local and foreign host table
45 * entries, local and foreign socket numbers, and pointers
46 * up (to a socket structure) and down (to a protocol-specific)
47 * control block.
48 */
49LIST_HEAD(inpcbhead, inpcb);
50
51typedef u_int64_t inp_gen_t;
52
53struct inpcb {
54        LIST_ENTRY(inpcb) inp_hash; /* hash list */
55        LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
56        struct  inpcbinfo *inp_pcbinfo; /* PCB list info */
57        struct  in_addr inp_faddr;      /* foreign host table entry */
58        struct  in_addr inp_laddr;      /* local host table entry */
59        u_short inp_fport;              /* foreign port */
60        u_short inp_lport;              /* local port */
61        caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
62        struct  socket *inp_socket;     /* back pointer to socket */
63        struct  mbuf *inp_options;      /* IP options */
64        struct  route inp_route;        /* placeholder for routing entry */
65        int     inp_flags;              /* generic IP/datagram flags */
66        u_char  inp_ip_tos;             /* type of service proto */
67        u_char  inp_ip_ttl;             /* time to live proto */
68        u_char  inp_ip_p;               /* protocol proto */
69        u_char  pad[1];                 /* alignment */
70        struct  ip_moptions *inp_moptions; /* IP multicast options */
71        inp_gen_t       inp_gencnt;     /* generation count of this instance */
72};
73
74/*
75 * Interface exported to userland by various protocols which use
76 * inpcbs.  Hack alert -- only define if struct xsocket is in scope.
77 */
78#ifdef _SYS_SOCKETVAR_H_
79struct  xinpcb {
80        size_t  xi_len;         /* length of this structure */
81        struct  inpcb xi_inp;
82/*      struct  xsocket xi_socket; ccj removed */
83        u_int64_t       xi_alignment_hack;
84};
85
86struct  xinpgen {
87        size_t  xig_len;        /* length of this structure */
88        u_int   xig_count;      /* number of PCBs at this time */
89        inp_gen_t xig_gen;      /* generation count at this time */
90        so_gen_t xig_sogen;     /* socket generation count at this time */
91};
92#endif /* _SYS_SOCKETVAR_H_ */
93
94struct inpcbinfo {              /* XXX documentation, prefixes */
95        struct  inpcbhead *listhead;
96        struct  inpcbhead *hashbase;
97        unsigned long hashmask;
98        unsigned short lastport;
99        unsigned short lastlow;
100        unsigned short lasthi;
101        u_int   ipi_count;      /* number of pcbs in this list */
102        u_int64_t ipi_gencnt;   /* current generation count */
103};
104
105#define INP_PCBHASH(faddr, lport, fport, mask) \
106        (((faddr) ^ ((faddr) >> 16) ^ (lport) ^ (fport)) & (mask))
107
108/* flags in inp_flags: */
109#define INP_RECVOPTS            0x01    /* receive incoming IP options */
110#define INP_RECVRETOPTS         0x02    /* receive IP options for reply */
111#define INP_RECVDSTADDR         0x04    /* receive IP dst address */
112#define INP_HDRINCL             0x08    /* user supplies entire IP header */
113#define INP_HIGHPORT            0x10    /* user wants "high" port binding */
114#define INP_LOWPORT             0x20    /* user wants "low" port binding */
115#define INP_ANONPORT            0x40    /* port chosen for user */
116#define INP_RECVIF              0x80    /* receive incoming interface */
117#define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
118                                        INP_RECVIF)
119
120#define INPLOOKUP_WILDCARD      1
121#define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
122
123#ifdef _KERNEL
124void    in_losing(struct inpcb *);
125int     in_pcballoc(struct socket *, struct inpcbinfo *);
126int     in_pcbbind(struct inpcb *, struct mbuf *);
127int     in_pcbconnect(struct inpcb *, struct mbuf *);
128void    in_pcbdetach(struct inpcb *);
129void    in_pcbdisconnect(struct inpcb *);
130int     in_pcbladdr(struct inpcb *, struct mbuf *,
131            struct sockaddr_in **);
132struct inpcb *
133        in_pcblookup(struct inpcbinfo *,
134            struct in_addr, u_int, struct in_addr, u_int, int);
135struct inpcb *
136        in_pcblookuphash(struct inpcbinfo *,
137            struct in_addr, u_int, struct in_addr, u_int, int);
138void    in_pcbnotify(struct inpcbhead *, struct sockaddr *,
139            u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int));
140void    in_pcbrehash(struct inpcb *);
141void    in_setpeeraddr(struct inpcb *, struct mbuf *);
142void    in_setsockaddr(struct inpcb *, struct mbuf *);
143#endif /* _KERNEL */
144
145#endif /* !_NETINET_IN_PCB_H_ */
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