sys/netinet/in_pcb_hdr.h

   1 /*      $NetBSD: in_pcb_hdr.h,v 1.11 2014/05/30 01:39:03 christos Exp $ */
   2
   3 /*
   4  * Copyright (C) 2003 WIDE Project.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the project nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * Copyright (c) 1982, 1986, 1990, 1993
  34  *      The Regents of the University of California.  All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  *
  60  *      @(#)in_pcb.h    8.1 (Berkeley) 6/10/93
  61  */
  62
  63 #ifndef _NETINET_IN_PCB_HDR_H_
  64 #define _NETINET_IN_PCB_HDR_H_
  65
  66 #include <sys/queue.h>
  67
  68 struct inpcbpolicy;
  69
  70 /*
  71  * align it with inpcb and in6pcb!
  72  */
  73 struct inpcb_hdr {
  74         LIST_ENTRY(inpcb_hdr) inph_hash;
  75         LIST_ENTRY(inpcb_hdr) inph_lhash;
  76         TAILQ_ENTRY(inpcb_hdr) inph_queue;
  77         int       inph_af;              /* address family - AF_INET */
  78         void *    inph_ppcb;            /* pointer to per-protocol pcb */
  79         int       inph_state;           /* bind/connect state */
  80         int       inph_portalgo;
  81         struct    socket *inph_socket;  /* back pointer to socket */
  82         struct    inpcbtable *inph_table;
  83         struct    inpcbpolicy *inph_sp; /* security policy */
  84 };
  85
  86 #define sotoinpcb_hdr(so)       ((struct inpcb_hdr *)(so)->so_pcb)
  87
  88 LIST_HEAD(inpcbhead, inpcb_hdr);
  89
  90 struct vestigial_inpcb;
  91
  92 /* Hooks for vestigial pcb entries.
  93  * If vestigial entries exist for a table (TCP only)
  94  * the vestigial pointer is set.
  95  */
  96 typedef struct vestigial_hooks {
  97         /* IPv4 hooks */
  98         void    *(*init_ports4)(struct in_addr, u_int, int);
  99         int     (*next_port4)(void *, struct vestigial_inpcb *);
 100         int     (*lookup4)(struct in_addr, uint16_t,
 101                            struct in_addr, uint16_t,
 102                            struct vestigial_inpcb *);
 103         /* IPv6 hooks */
 104         void    *(*init_ports6)(const struct in6_addr*, u_int, int);
 105         int     (*next_port6)(void *, struct vestigial_inpcb *);
 106         int     (*lookup6)(const struct in6_addr *, uint16_t,
 107                            const struct in6_addr *, uint16_t,
 108                            struct vestigial_inpcb *);
 109 } vestigial_hooks_t;
 110
 111 TAILQ_HEAD(inpcbqueue, inpcb_hdr);
 112
 113 struct inpcbtable {
 114         struct    inpcbqueue inpt_queue;
 115         struct    inpcbhead *inpt_porthashtbl;
 116         struct    inpcbhead *inpt_bindhashtbl;
 117         struct    inpcbhead *inpt_connecthashtbl;
 118         u_long    inpt_porthash;
 119         u_long    inpt_bindhash;
 120         u_long    inpt_connecthash;
 121         u_int16_t inpt_lastport;
 122         u_int16_t inpt_lastlow;
 123
 124         vestigial_hooks_t *vestige;
 125 };
 126 #define inpt_lasthi inpt_lastport
 127
 128 /* states in inp_state: */
 129 #define INP_ATTACHED            0
 130 #define INP_BOUND               1
 131 #define INP_CONNECTED           2
 132
 133 #endif /* !_NETINET_IN_PCB_HDR_H_ */