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Annotation of src/sys/netinet6/in6_pcb.h, Revision 1.11

1.11    ! itojun      1: /*     $NetBSD: in6_pcb.h,v 1.10 2000/02/03 13:17:41 itojun Exp $      */
        !             2: /*     $KAME: in6_pcb.h,v 1.25 2000/06/05 00:41:58 itojun Exp $        */
1.3       thorpej     3:
1.2       itojun      4: /*
                      5:  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
                      6:  * All rights reserved.
1.11    ! itojun      7:  *
1.2       itojun      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.
1.11    ! itojun     19:  *
1.2       itojun     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. All advertising materials mentioning features or use of this software
                     46:  *    must display the following acknowledgement:
                     47:  *     This product includes software developed by the University of
                     48:  *     California, Berkeley and its contributors.
                     49:  * 4. Neither the name of the University nor the names of its contributors
                     50:  *    may be used to endorse or promote products derived from this software
                     51:  *    without specific prior written permission.
                     52:  *
                     53:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     54:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     55:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     56:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     57:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     58:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     59:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     60:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     61:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     62:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     63:  * SUCH DAMAGE.
                     64:  *
                     65:  *     @(#)in_pcb.h    8.1 (Berkeley) 6/10/93
                     66:  */
                     67:
                     68: #ifndef _NETINET6_IN6_PCB_H_
                     69: #define _NETINET6_IN6_PCB_H_
                     70:
                     71: #include <sys/queue.h>
                     72:
                     73: /*
                     74:  * Common structure pcb for internet protocol implementation.
                     75:  * Here are stored pointers to local and foreign host table
                     76:  * entries, local and foreign socket numbers, and pointers
                     77:  * up (to a socket structure) and down (to a protocol-specific)
                     78:  * control block.
                     79:  */
                     80: struct icmp6_filter;
1.8       itojun     81: struct inpcbpolicy;
1.2       itojun     82:
                     83: struct in6pcb {
                     84:        struct  in6pcb *in6p_next, *in6p_prev;
                     85:                                        /* pointers to other pcb's */
                     86:        struct  in6pcb *in6p_head;      /* pointer back to chain of
                     87:                                           in6pcb's for this protocol */
                     88:        struct  in6_addr in6p_faddr;    /* foreign host table entry */
1.10      itojun     89:        u_int16_t in6p_fport;           /* foreign port */
1.2       itojun     90:        struct  in6_addr in6p_laddr;    /* local host table entry */
1.10      itojun     91:        u_int16_t in6p_lport;           /* local port */
1.5       itojun     92:        u_int32_t in6p_flowinfo;        /* priority and flowlabel */
1.2       itojun     93:        struct  socket *in6p_socket;    /* back pointer to socket */
                     94:        caddr_t in6p_ppcb;              /* pointer to per-protocol pcb */
                     95:        struct  route_in6 in6p_route;   /* placeholder for routing entry */
                     96:        int     in6p_flags;             /* generic IP6/datagram flags */
                     97:        int     in6p_hops;              /* default hop limit */
                     98:        struct  ip6_hdr in6p_ip6;       /* header prototype */
                     99:        struct  mbuf *in6p_options;   /* IP6 options */
                    100:        struct  ip6_pktopts *in6p_outputopts; /* IP6 options for outgoing packets */
                    101:        struct  ip6_moptions *in6p_moptions; /* IP6 multicast options */
                    102:        u_short in6p_ifindex;
                    103:        /* should move the following just after next/prev */
                    104:        LIST_ENTRY(in6pcb) in6p_hlist;  /* hash chain */
                    105:        u_long  in6p_hash;              /* hash value */
                    106: #if 1 /*IPSEC*/
1.8       itojun    107:        struct inpcbpolicy *in6p_sp;    /* security policy. */
1.2       itojun    108: #endif
                    109:        struct icmp6_filter *in6p_icmp6filt;
                    110:        int     in6p_cksum;             /* IPV6_CHECKSUM setsockopt */
                    111: };
                    112:
                    113: #define in6p_ip6_nxt in6p_ip6.ip6_nxt  /* for KAME src sync over BSD*'s */
                    114:
1.7       itojun    115: /*
                    116:  * Flags in in6p_flags
                    117:  * We define KAME's original flags in higher 16 bits as much as possible
                    118:  * for compatibility with *bsd*s.
                    119:  */
                    120: #define IN6P_RECVOPTS          0x001000 /* receive incoming IP6 options */
                    121: #define IN6P_RECVRETOPTS       0x002000 /* receive IP6 options for reply */
                    122: #define IN6P_RECVDSTADDR       0x004000 /* receive IP6 dst address */
                    123: #define IN6P_PKTINFO           0x010000 /* receive IP6 dst and I/F */
                    124: #define IN6P_HOPLIMIT          0x020000 /* receive hoplimit */
                    125: #define IN6P_HOPOPTS           0x040000 /* receive hop-by-hop options */
                    126: #define IN6P_DSTOPTS           0x080000 /* receive dst options after rthdr */
                    127: #define IN6P_RTHDR             0x100000 /* receive routing header */
                    128: #define IN6P_RTHDRDSTOPTS      0x200000 /* receive dstoptions before rthdr */
                    129:
                    130: #define IN6P_HIGHPORT          0x1000000 /* user wants "high" port binding */
                    131: #define IN6P_LOWPORT           0x2000000 /* user wants "low" port binding */
                    132: #define IN6P_ANONPORT          0x4000000 /* port chosen for user */
                    133: #define IN6P_FAITH             0x8000000 /* accept FAITH'ed connections */
                    134: #define IN6P_BINDV6ONLY                0x10000000 /* do not grab IPv4 traffic */
                    135:
                    136: #define IN6P_CONTROLOPTS       (IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
                    137:                                 IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS)
                    138:
1.2       itojun    139:
                    140: #define IN6PLOOKUP_WILDCARD    1
                    141: #define IN6PLOOKUP_SETLOCAL    2
                    142:
                    143: /* compute hash value for foreign and local in6_addr and port */
                    144: #define IN6_HASH(faddr, fport, laddr, lport)                   \
                    145:        (((faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^       \
                    146:          (faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3] ^       \
                    147:          (laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^       \
                    148:          (laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3])        \
                    149:         + (fport) + (lport))
                    150:
                    151: #define sotoin6pcb(so) ((struct in6pcb *)(so)->so_pcb)
                    152:
                    153: #ifdef _KERNEL
                    154: void   in6_losing __P((struct in6pcb *));
                    155: int    in6_pcballoc __P((struct socket *, struct in6pcb *));
1.11    ! itojun    156: int    in6_pcbbind __P((struct in6pcb *, struct mbuf *, struct proc *));
1.2       itojun    157: int    in6_pcbconnect __P((struct in6pcb *, struct mbuf *));
                    158: void   in6_pcbdetach __P((struct in6pcb *));
                    159: void   in6_pcbdisconnect __P((struct in6pcb *));
                    160: struct in6pcb *
                    161:        in6_pcblookup __P((struct in6pcb *,
                    162:                           struct in6_addr *, u_int, struct in6_addr *,
                    163:                           u_int, int));
                    164: int    in6_pcbnotify __P((struct in6pcb *, struct sockaddr *,
                    165:                           u_int, struct in6_addr *, u_int, int,
                    166:                           void (*)(struct in6pcb *, int)));
1.9       thorpej   167: void   in6_pcbpurgeif __P((struct in6pcb *, struct ifnet *));
1.6       itojun    168: int    in6_pcbsetport __P((struct in6_addr *, struct in6pcb *));
1.2       itojun    169: void   in6_rtchange __P((struct in6pcb *, int));
                    170: void   in6_setpeeraddr __P((struct in6pcb *, struct mbuf *));
                    171: void   in6_setsockaddr __P((struct in6pcb *, struct mbuf *));
                    172: struct         in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
1.6       itojun    173:                                     struct ip6_pktopts *,
                    174:                                     struct ip6_moptions *,
                    175:                                     struct route_in6 *,
                    176:                                     struct in6_addr *, int *));
                    177: int    in6_selecthlim __P((struct in6pcb *, struct ifnet *));
1.2       itojun    178:
                    179: #ifndef TCP6
                    180: extern struct rtentry *
                    181:        in6_pcbrtentry __P((struct in6pcb *));
                    182: extern struct in6pcb *in6_pcblookup_connect __P((struct in6pcb *,
1.4       itojun    183:        struct in6_addr *, u_int, struct in6_addr *, u_int, int));
1.2       itojun    184: extern struct in6pcb *in6_pcblookup_bind __P((struct in6pcb *,
1.4       itojun    185:        struct in6_addr *, u_int, int));
1.2       itojun    186: #endif
                    187: #endif /* _KERNEL */
                    188:
                    189: #endif /* !_NETINET6_IN6_PCB_H_ */

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