FreeBSD/Linux Kernel Cross Reference
sys/netinet6/in6_pcb.h

     /*      $NetBSD: in6_pcb.h,v 1.32 2007/05/02 20:40:26 dyoung Exp $      */
     /*      $KAME: in6_pcb.h,v 1.45 2001/02/09 05:59:46 itojun Exp $        */
     
     /*
      * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the project nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    /*
     * Copyright (c) 1982, 1986, 1990, 1993
     *      The Regents of the University of California.  All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)in_pcb.h    8.1 (Berkeley) 6/10/93
     */
    
    #ifndef _NETINET6_IN6_PCB_H_
    #define _NETINET6_IN6_PCB_H_
    
    #include <sys/queue.h>
    #include <netinet/in_pcb_hdr.h>
    
    /*
     * Common structure pcb for internet protocol implementation.
     * Here are stored pointers to local and foreign host table
     * entries, local and foreign socket numbers, and pointers
     * up (to a socket structure) and down (to a protocol-specific)
     * control block.
     */
    struct icmp6_filter;
    
    struct  in6pcb {
            struct inpcb_hdr in6p_head;
    #define in6p_hash       in6p_head.inph_hash
    #define in6p_queue      in6p_head.inph_queue
    #define in6p_af         in6p_head.inph_af
    #define in6p_ppcb       in6p_head.inph_ppcb
    #define in6p_state      in6p_head.inph_state
    #define in6p_socket     in6p_head.inph_socket
    #define in6p_table      in6p_head.inph_table
    #define in6p_sp         in6p_head.inph_sp
            struct  route in6p_route;       /* placeholder for routing entry */
            u_int16_t in6p_fport;           /* foreign port */
            u_int16_t in6p_lport;           /* local port */
            u_int32_t in6p_flowinfo;        /* priority and flowlabel */
            int     in6p_flags;             /* generic IP6/datagram flags */
            int     in6p_hops;              /* default hop limit */
            struct  ip6_hdr in6p_ip6;       /* header prototype */
            struct  mbuf *in6p_options;   /* IP6 options */
            struct  ip6_pktopts *in6p_outputopts; /* IP6 options for outgoing packets */
            struct  ip6_moptions *in6p_moptions; /* IP6 multicast options */
            struct icmp6_filter *in6p_icmp6filt;
           int     in6p_cksum;             /* IPV6_CHECKSUM setsockopt */
   };
   
   #define in6p_faddr      in6p_ip6.ip6_dst
   #define in6p_laddr      in6p_ip6.ip6_src
   
   /* states in inp_state: */
   #define IN6P_ATTACHED           INP_ATTACHED
   #define IN6P_BOUND              INP_BOUND
   #define IN6P_CONNECTED          INP_CONNECTED
   
   /*
    * Flags in in6p_flags
    * We define KAME's original flags in higher 16 bits as much as possible
    * for compatibility with *bsd*s.
    */
   #define IN6P_RECVOPTS           0x001000 /* receive incoming IP6 options */
   #define IN6P_RECVRETOPTS        0x002000 /* receive IP6 options for reply */
   #define IN6P_RECVDSTADDR        0x004000 /* receive IP6 dst address */
   #define IN6P_IPV6_V6ONLY        0x008000 /* restrict AF_INET6 socket for v6 */
   #define IN6P_PKTINFO            0x010000 /* receive IP6 dst and I/F */
   #define IN6P_HOPLIMIT           0x020000 /* receive hoplimit */
   #define IN6P_HOPOPTS            0x040000 /* receive hop-by-hop options */
   #define IN6P_DSTOPTS            0x080000 /* receive dst options after rthdr */
   #define IN6P_RTHDR              0x100000 /* receive routing header */
   #define IN6P_RTHDRDSTOPTS       0x200000 /* receive dstoptions before rthdr */
   #define IN6P_TCLASS             0x400000 /* traffic class */
   
   #define IN6P_HIGHPORT           0x1000000 /* user wants "high" port binding */
   #define IN6P_LOWPORT            0x2000000 /* user wants "low" port binding */
   #define IN6P_ANONPORT           0x4000000 /* port chosen for user */
   #define IN6P_FAITH              0x8000000 /* accept FAITH'ed connections */
   
   #define IN6P_RFC2292            0x40000000 /* RFC2292 */
   #define IN6P_MTU                0x80000000 /* use minimum MTU */
   
   #define IN6P_CONTROLOPTS        (IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
                                    IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
                                    IN6P_TCLASS|IN6P_RFC2292|\
                                    IN6P_MTU)
   
   /* compute hash value for foreign and local in6_addr and port */
   #define IN6_HASH(faddr, fport, laddr, lport)                    \
           (((faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^       \
             (faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3] ^       \
             (laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^       \
             (laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3])        \
            + (fport) + (lport))
   
   #define sotoin6pcb(so)  ((struct in6pcb *)(so)->so_pcb)
   
   #ifdef _KERNEL
   void    in6_losing(struct in6pcb *);
   void    in6_pcbinit(struct inpcbtable *, int, int);
   int     in6_pcballoc(struct socket *, void *);
   int     in6_pcbbind(void *, struct mbuf *, struct lwp *);
   int     in6_pcbconnect(void *, struct mbuf *, struct lwp *);
   void    in6_pcbdetach(struct in6pcb *);
   void    in6_pcbdisconnect(struct in6pcb *);
   struct  in6pcb *in6_pcblookup_port(struct inpcbtable *, struct in6_addr *,
           u_int, int);
   int     in6_pcbnotify(struct inpcbtable *, const struct sockaddr *,
           u_int, const struct sockaddr *, u_int, int, void *,
           void (*)(struct in6pcb *, int));
   void    in6_pcbpurgeif0(struct inpcbtable *, struct ifnet *);
   void    in6_pcbpurgeif(struct inpcbtable *, struct ifnet *);
   void    in6_pcbstate(struct in6pcb *, int);
   void    in6_rtchange(struct in6pcb *, int);
   void    in6_setpeeraddr(struct in6pcb *, struct mbuf *);
   void    in6_setsockaddr(struct in6pcb *, struct mbuf *);
   
   /* in in6_src.c */
   int     in6_selecthlim(struct in6pcb *, struct ifnet *);
   int     in6_pcbsetport(struct in6_addr *, struct in6pcb *, struct lwp *);
   
   extern struct rtentry *
           in6_pcbrtentry(struct in6pcb *);
   extern struct in6pcb *in6_pcblookup_connect(struct inpcbtable *,
           const struct in6_addr *, u_int, const struct in6_addr *, u_int, int);
   extern struct in6pcb *in6_pcblookup_bind(struct inpcbtable *,
           const struct in6_addr *, u_int, int);
   #endif /* _KERNEL */
   
   #endif /* !_NETINET6_IN6_PCB_H_ */

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