1 /* $NetBSD: in6_pcb.h,v 1.27 2005/11/15 18:39:46 dsl Exp $ */ 2 /* $KAME: in6_pcb.h,v 1.45 2001/02/09 05:59:46 itojun Exp $ */ 3 4 /* 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1982, 1986, 1990, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 62 */ 63 64 #ifndef _NETINET6_IN6_PCB_H_ 65 #define _NETINET6_IN6_PCB_H_ 66 67 #include <sys/queue.h> 68 #include <netinet/in_pcb_hdr.h> 69 70 /* 71 * Common structure pcb for internet protocol implementation. 72 * Here are stored pointers to local and foreign host table 73 * entries, local and foreign socket numbers, and pointers 74 * up (to a socket structure) and down (to a protocol-specific) 75 * control block. 76 */ 77 struct icmp6_filter; 78 79 struct in6pcb { 80 struct inpcb_hdr in6p_head; 81 #define in6p_hash in6p_head.inph_hash 82 #define in6p_queue in6p_head.inph_queue 83 #define in6p_af in6p_head.inph_af 84 #define in6p_ppcb in6p_head.inph_ppcb 85 #define in6p_state in6p_head.inph_state 86 #define in6p_socket in6p_head.inph_socket 87 #define in6p_table in6p_head.inph_table 88 #define in6p_sp in6p_head.inph_sp 89 struct route_in6 in6p_route; /* placeholder for routing entry */ 90 u_int16_t in6p_fport; /* foreign port */ 91 u_int16_t in6p_lport; /* local port */ 92 u_int32_t in6p_flowinfo; /* priority and flowlabel */ 93 int in6p_flags; /* generic IP6/datagram flags */ 94 int in6p_hops; /* default hop limit */ 95 struct ip6_hdr in6p_ip6; /* header prototype */ 96 struct mbuf *in6p_options; /* IP6 options */ 97 struct ip6_pktopts *in6p_outputopts; /* IP6 options for outgoing packets */ 98 struct ip6_moptions *in6p_moptions; /* IP6 multicast options */ 99 struct icmp6_filter *in6p_icmp6filt; 100 int in6p_cksum; /* IPV6_CHECKSUM setsockopt */ 101 }; 102 103 #define in6p_faddr in6p_ip6.ip6_dst 104 #define in6p_laddr in6p_ip6.ip6_src 105 106 /* states in inp_state: */ 107 #define IN6P_ATTACHED INP_ATTACHED 108 #define IN6P_BOUND INP_BOUND 109 #define IN6P_CONNECTED INP_CONNECTED 110 111 /* 112 * Flags in in6p_flags 113 * We define KAME's original flags in higher 16 bits as much as possible 114 * for compatibility with *bsd*s. 115 */ 116 #define IN6P_RECVOPTS 0x001000 /* receive incoming IP6 options */ 117 #define IN6P_RECVRETOPTS 0x002000 /* receive IP6 options for reply */ 118 #define IN6P_RECVDSTADDR 0x004000 /* receive IP6 dst address */ 119 #define IN6P_IPV6_V6ONLY 0x008000 /* restrict AF_INET6 socket for v6 */ 120 #define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */ 121 #define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */ 122 #define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */ 123 #define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */ 124 #define IN6P_RTHDR 0x100000 /* receive routing header */ 125 #define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */ 126 127 #define IN6P_HIGHPORT 0x1000000 /* user wants "high" port binding */ 128 #define IN6P_LOWPORT 0x2000000 /* user wants "low" port binding */ 129 #define IN6P_ANONPORT 0x4000000 /* port chosen for user */ 130 #define IN6P_FAITH 0x8000000 /* accept FAITH'ed connections */ 131 #if 0 /* obsoleted */ 132 #define IN6P_BINDV6ONLY 0x10000000 /* do not grab IPv4 traffic */ 133 #endif 134 #define IN6P_MINMTU 0x20000000 /* use minimum MTU */ 135 136 #define IN6P_CONTROLOPTS (IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\ 137 IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\ 138 IN6P_MINMTU) 139 140 /* compute hash value for foreign and local in6_addr and port */ 141 #define IN6_HASH(faddr, fport, laddr, lport) \ 142 (((faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^ \ 143 (faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3] ^ \ 144 (laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^ \ 145 (laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3]) \ 146 + (fport) + (lport)) 147 148 #define sotoin6pcb(so) ((struct in6pcb *)(so)->so_pcb) 149 150 #ifdef _KERNEL 151 void in6_losing __P((struct in6pcb *)); 152 void in6_pcbinit __P((struct inpcbtable *, int, int)); 153 int in6_pcballoc __P((struct socket *, void *)); 154 int in6_pcbbind __P((void *, struct mbuf *, struct proc *)); 155 int in6_pcbconnect __P((void *, struct mbuf *, struct proc *)); 156 void in6_pcbdetach __P((struct in6pcb *)); 157 void in6_pcbdisconnect __P((struct in6pcb *)); 158 struct in6pcb *in6_pcblookup_port __P((struct inpcbtable *, struct in6_addr *, 159 u_int, int)); 160 int in6_pcbnotify __P((struct inpcbtable *, struct sockaddr *, 161 u_int, const struct sockaddr *, u_int, int, void *, 162 void (*)(struct in6pcb *, int))); 163 void in6_pcbpurgeif0 __P((struct inpcbtable *, struct ifnet *)); 164 void in6_pcbpurgeif __P((struct inpcbtable *, struct ifnet *)); 165 void in6_pcbstate __P((struct in6pcb *, int)); 166 void in6_rtchange __P((struct in6pcb *, int)); 167 void in6_setpeeraddr __P((struct in6pcb *, struct mbuf *)); 168 void in6_setsockaddr __P((struct in6pcb *, struct mbuf *)); 169 170 /* in in6_src.c */ 171 int in6_selecthlim __P((struct in6pcb *, struct ifnet *)); 172 int in6_pcbsetport __P((struct in6_addr *, struct in6pcb *, struct proc *)); 173 174 extern struct rtentry * 175 in6_pcbrtentry __P((struct in6pcb *)); 176 extern struct in6pcb *in6_pcblookup_connect __P((struct inpcbtable *, 177 struct in6_addr *, u_int, const struct in6_addr *, u_int, int)); 178 extern struct in6pcb *in6_pcblookup_bind __P((struct inpcbtable *, 179 struct in6_addr *, u_int, int)); 180 #endif /* _KERNEL */ 181 182 #endif /* !_NETINET6_IN6_PCB_H_ */ 183