source: rtems/cpukit/libnetworking/netinet/in_pcb.h @ 883ba09

4.104.114.84.9
Last change on this file since 883ba09 was 883ba09, checked in by Ralf Corsepius <ralf.corsepius@…>, on Mar 25, 2007 at 4:43:30 PM

More partial updates from FreeBSD.

  • Property mode set to 100644
File size: 5.8 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  route inp_route;        /* placeholder for routing entry */
64        int     inp_flags;              /* generic IP/datagram flags */
65        u_char  inp_vflag;              /* IP version flag (v4/v6) */
66        u_char  inp_ip_ttl;             /* time to live proto */
67        u_char  inp_ip_p;               /* protocol proto */
68        u_char  inp_ip_minttl;          /* minimum TTL or drop */
69
70        /* protocol dependent part; options */
71        struct {
72                u_char  inp4_ip_tos;            /* type of service proto */
73                struct  mbuf *inp4_options;     /* IP options */
74                struct  ip_moptions *inp4_moptions; /* IP multicast options */
75        } inp_depend4;
76#define inp_ip_tos      inp_depend4.inp4_ip_tos
77#define inp_options     inp_depend4.inp4_options
78#define inp_moptions    inp_depend4.inp4_moptions
79        inp_gen_t       inp_gencnt;     /* generation count of this instance */
80};
81
82/*
83 * Interface exported to userland by various protocols which use
84 * inpcbs.  Hack alert -- only define if struct xsocket is in scope.
85 */
86#ifdef _SYS_SOCKETVAR_H_
87struct  xinpcb {
88        size_t  xi_len;         /* length of this structure */
89        struct  inpcb xi_inp;
90/*      struct  xsocket xi_socket; ccj removed */
91        u_int64_t       xi_alignment_hack;
92};
93
94struct  xinpgen {
95        size_t  xig_len;        /* length of this structure */
96        u_int   xig_count;      /* number of PCBs at this time */
97        inp_gen_t xig_gen;      /* generation count at this time */
98        so_gen_t xig_sogen;     /* socket generation count at this time */
99};
100#endif /* _SYS_SOCKETVAR_H_ */
101
102struct inpcbinfo {              /* XXX documentation, prefixes */
103        struct  inpcbhead *listhead;
104        struct  inpcbhead *hashbase;
105        unsigned long hashmask;
106        unsigned short lastport;
107        unsigned short lastlow;
108        unsigned short lasthi;
109        u_int   ipi_count;      /* number of pcbs in this list */
110        u_int64_t ipi_gencnt;   /* current generation count */
111};
112
113#define INP_PCBHASH(faddr, lport, fport, mask) \
114        (((faddr) ^ ((faddr) >> 16) ^ (lport) ^ (fport)) & (mask))
115
116/* flags in inp_flags: */
117#define INP_RECVOPTS            0x01    /* receive incoming IP options */
118#define INP_RECVRETOPTS         0x02    /* receive IP options for reply */
119#define INP_RECVDSTADDR         0x04    /* receive IP dst address */
120#define INP_HDRINCL             0x08    /* user supplies entire IP header */
121#define INP_HIGHPORT            0x10    /* user wants "high" port binding */
122#define INP_LOWPORT             0x20    /* user wants "low" port binding */
123#define INP_ANONPORT            0x40    /* port chosen for user */
124#define INP_RECVIF              0x80    /* receive incoming interface */
125#define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
126                                        INP_RECVIF)
127
128#define INPLOOKUP_WILDCARD      1
129#define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
130
131#ifdef _KERNEL
132void    in_losing(struct inpcb *);
133int     in_pcballoc(struct socket *, struct inpcbinfo *);
134int     in_pcbbind(struct inpcb *, struct mbuf *);
135int     in_pcbconnect(struct inpcb *, struct mbuf *);
136void    in_pcbdetach(struct inpcb *);
137void    in_pcbdisconnect(struct inpcb *);
138int     in_pcbladdr(struct inpcb *, struct mbuf *,
139            struct sockaddr_in **);
140struct inpcb *
141        in_pcblookup(struct inpcbinfo *,
142            struct in_addr, u_int, struct in_addr, u_int, int);
143struct inpcb *
144        in_pcblookuphash(struct inpcbinfo *,
145            struct in_addr, u_int, struct in_addr, u_int, int);
146void    in_pcbnotify(struct inpcbhead *, struct sockaddr *,
147            u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int));
148void    in_pcbrehash(struct inpcb *);
149void    in_setpeeraddr(struct inpcb *, struct mbuf *);
150void    in_setsockaddr(struct inpcb *, struct mbuf *);
151#endif /* _KERNEL */
152
153#endif /* !_NETINET_IN_PCB_H_ */
Note: See TracBrowser for help on using the repository browser.