[39e6e65a] | 1 | /* |
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| 2 | * Copyright (c) 1982, 1986, 1990, 1993 |
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| 3 | * The Regents of the University of California. All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * 1. Redistributions of source code must retain the above copyright |
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| 9 | * notice, this list of conditions and the following disclaimer. |
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer in the |
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| 12 | * documentation and/or other materials provided with the distribution. |
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| 13 | * 4. Neither the name of the University nor the names of its contributors |
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| 14 | * may be used to endorse or promote products derived from this software |
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| 15 | * without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 27 | * SUCH DAMAGE. |
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| 28 | * |
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| 29 | * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 |
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[b91ebbc] | 30 | * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.89 2006/07/18 22:34:27 ups Exp $ |
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| 31 | */ |
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| 32 | |
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| 33 | /* |
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[39e6e65a] | 34 | * $Id$ |
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| 35 | */ |
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| 36 | |
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| 37 | #ifndef _NETINET_IN_PCB_H_ |
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| 38 | #define _NETINET_IN_PCB_H_ |
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| 39 | |
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| 40 | #include <sys/queue.h> |
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| 41 | |
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| 42 | /* |
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| 43 | * Common structure pcb for internet protocol implementation. |
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| 44 | * Here are stored pointers to local and foreign host table |
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| 45 | * entries, local and foreign socket numbers, and pointers |
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| 46 | * up (to a socket structure) and down (to a protocol-specific) |
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| 47 | * control block. |
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| 48 | */ |
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| 49 | LIST_HEAD(inpcbhead, inpcb); |
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| 50 | |
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[36799d4] | 51 | typedef u_int64_t inp_gen_t; |
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| 52 | |
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[39e6e65a] | 53 | struct inpcb { |
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[b91ebbc] | 54 | LIST_ENTRY(inpcb) inp_hash; /* hash list */ |
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| 55 | LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ |
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[39e6e65a] | 56 | struct inpcbinfo *inp_pcbinfo; /* PCB list info */ |
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| 57 | struct in_addr inp_faddr; /* foreign host table entry */ |
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| 58 | struct in_addr inp_laddr; /* local host table entry */ |
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| 59 | u_short inp_fport; /* foreign port */ |
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| 60 | u_short inp_lport; /* local port */ |
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| 61 | caddr_t inp_ppcb; /* pointer to per-protocol pcb */ |
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| 62 | struct socket *inp_socket; /* back pointer to socket */ |
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| 63 | struct mbuf *inp_options; /* IP options */ |
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| 64 | struct route inp_route; /* placeholder for routing entry */ |
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| 65 | int inp_flags; /* generic IP/datagram flags */ |
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| 66 | u_char inp_ip_tos; /* type of service proto */ |
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| 67 | u_char inp_ip_ttl; /* time to live proto */ |
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| 68 | u_char inp_ip_p; /* protocol proto */ |
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| 69 | u_char pad[1]; /* alignment */ |
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| 70 | struct ip_moptions *inp_moptions; /* IP multicast options */ |
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[36799d4] | 71 | inp_gen_t inp_gencnt; /* generation count of this instance */ |
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[39e6e65a] | 72 | }; |
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| 73 | |
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[36799d4] | 74 | /* |
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| 75 | * Interface exported to userland by various protocols which use |
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| 76 | * inpcbs. Hack alert -- only define if struct xsocket is in scope. |
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| 77 | */ |
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| 78 | #ifdef _SYS_SOCKETVAR_H_ |
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| 79 | struct xinpcb { |
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| 80 | size_t xi_len; /* length of this structure */ |
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| 81 | struct inpcb xi_inp; |
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| 82 | /* struct xsocket xi_socket; ccj removed */ |
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| 83 | u_int64_t xi_alignment_hack; |
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| 84 | }; |
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| 85 | |
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| 86 | struct xinpgen { |
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| 87 | size_t xig_len; /* length of this structure */ |
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| 88 | u_int xig_count; /* number of PCBs at this time */ |
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| 89 | inp_gen_t xig_gen; /* generation count at this time */ |
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| 90 | so_gen_t xig_sogen; /* socket generation count at this time */ |
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| 91 | }; |
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| 92 | #endif /* _SYS_SOCKETVAR_H_ */ |
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| 93 | |
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[b91ebbc] | 94 | struct inpcbinfo { /* XXX documentation, prefixes */ |
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| 95 | struct inpcbhead *listhead; |
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| 96 | struct inpcbhead *hashbase; |
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[39e6e65a] | 97 | unsigned long hashmask; |
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| 98 | unsigned short lastport; |
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| 99 | unsigned short lastlow; |
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| 100 | unsigned short lasthi; |
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[36799d4] | 101 | u_int ipi_count; /* number of pcbs in this list */ |
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| 102 | u_int64_t ipi_gencnt; /* current generation count */ |
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[39e6e65a] | 103 | }; |
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| 104 | |
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| 105 | #define INP_PCBHASH(faddr, lport, fport, mask) \ |
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| 106 | (((faddr) ^ ((faddr) >> 16) ^ (lport) ^ (fport)) & (mask)) |
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| 107 | |
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| 108 | /* flags in inp_flags: */ |
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| 109 | #define INP_RECVOPTS 0x01 /* receive incoming IP options */ |
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| 110 | #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ |
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| 111 | #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ |
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| 112 | #define INP_HDRINCL 0x08 /* user supplies entire IP header */ |
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| 113 | #define INP_HIGHPORT 0x10 /* user wants "high" port binding */ |
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| 114 | #define INP_LOWPORT 0x20 /* user wants "low" port binding */ |
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| 115 | #define INP_ANONPORT 0x40 /* port chosen for user */ |
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| 116 | #define INP_RECVIF 0x80 /* receive incoming interface */ |
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| 117 | #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ |
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| 118 | INP_RECVIF) |
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| 119 | |
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| 120 | #define INPLOOKUP_WILDCARD 1 |
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| 121 | #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) |
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| 122 | |
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[dc28f16] | 123 | #ifdef _KERNEL |
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[b91ebbc] | 124 | void in_losing(struct inpcb *); |
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| 125 | int in_pcballoc(struct socket *, struct inpcbinfo *); |
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| 126 | int in_pcbbind(struct inpcb *, struct mbuf *); |
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| 127 | int in_pcbconnect(struct inpcb *, struct mbuf *); |
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| 128 | void in_pcbdetach(struct inpcb *); |
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| 129 | void in_pcbdisconnect(struct inpcb *); |
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| 130 | int in_pcbladdr(struct inpcb *, struct mbuf *, |
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| 131 | struct sockaddr_in **); |
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[39e6e65a] | 132 | struct inpcb * |
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[b91ebbc] | 133 | in_pcblookup(struct inpcbinfo *, |
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| 134 | struct in_addr, u_int, struct in_addr, u_int, int); |
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[39e6e65a] | 135 | struct inpcb * |
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[b91ebbc] | 136 | in_pcblookuphash(struct inpcbinfo *, |
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| 137 | struct in_addr, u_int, struct in_addr, u_int, int); |
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| 138 | void in_pcbnotify(struct inpcbhead *, struct sockaddr *, |
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| 139 | u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)); |
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| 140 | void in_pcbrehash(struct inpcb *); |
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| 141 | void in_setpeeraddr(struct inpcb *, struct mbuf *); |
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| 142 | void in_setsockaddr(struct inpcb *, struct mbuf *); |
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| 143 | #endif /* _KERNEL */ |
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| 144 | |
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| 145 | #endif /* !_NETINET_IN_PCB_H_ */ |
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