| 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_ */ |
| 134 | |