FreeBSD/Linux Kernel Cross Reference
sys/netinet/in_pcb.h

     /*      $NetBSD: in_pcb.h,v 1.45 2007/12/16 18:39:57 elad 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 _NETINET_IN_PCB_H_
    #define _NETINET_IN_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 inpcb {
            struct inpcb_hdr inp_head;
    #define inp_hash        inp_head.inph_hash
    #define inp_queue       inp_head.inph_queue
    #define inp_af          inp_head.inph_af
    #define inp_ppcb        inp_head.inph_ppcb
    #define inp_state       inp_head.inph_state
    #define inp_socket      inp_head.inph_socket
    #define inp_table       inp_head.inph_table
    #define inp_sp          inp_head.inph_sp
            struct    route inp_route;      /* placeholder for routing entry */
            u_int16_t inp_fport;            /* foreign port */
            u_int16_t inp_lport;            /* local port */
            int       inp_flags;            /* generic IP/datagram flags */
            struct    ip inp_ip;            /* header prototype; should have more */
            struct    mbuf *inp_options;    /* IP options */
            struct    ip_moptions *inp_moptions; /* IP multicast options */
            int       inp_errormtu;         /* MTU of last xmit status = EMSGSIZE */
    };
    
    #define inp_faddr       inp_ip.ip_dst
    #define inp_laddr       inp_ip.ip_src
    
    /* flags in inp_flags: */
   #define INP_RECVOPTS            0x01    /* receive incoming IP options */
   #define INP_RECVRETOPTS         0x02    /* receive IP options for reply */
   #define INP_RECVDSTADDR         0x04    /* receive IP dst address */
   #define INP_HDRINCL             0x08    /* user supplies entire IP header */
   #define INP_HIGHPORT            0x10    /* (unused; FreeBSD compat) */
   #define INP_LOWPORT             0x20    /* user wants "low" port binding */
   #define INP_ANONPORT            0x40    /* port chosen for user */
   #define INP_RECVIF              0x80    /* receive incoming interface */
   /* XXX should move to an UDP control block */
   #define INP_ESPINUDP            0x100   /* ESP over UDP for NAT-T */
   #define INP_ESPINUDP_NON_IKE    0x200   /* ESP over UDP for NAT-T */
   #define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
                                   INP_RECVIF)
   #define INP_ESPINUDP_ALL        (INP_ESPINUDP|INP_ESPINUDP_NON_IKE)
   #define INP_NOHEADER            0x400   /* Kernel removes IP header
                                            * before feeding a packet
                                            * to the raw socket user.
                                            * The socket user will
                                            * not supply an IP header.
                                            * Cancels INP_HDRINCL.
                                            */
   
   #define sotoinpcb(so)           ((struct inpcb *)(so)->so_pcb)
   
   #ifdef _KERNEL
   void    in_losing(struct inpcb *);
   int     in_pcballoc(struct socket *, void *);
   int     in_pcbbind(void *, struct mbuf *, struct lwp *);
   int     in_pcbconnect(void *, struct mbuf *, struct lwp *);
   void    in_pcbdetach(void *);
   void    in_pcbdisconnect(void *);
   void    in_pcbinit(struct inpcbtable *, int, int);
   struct inpcb *
           in_pcblookup_port(struct inpcbtable *,
               struct in_addr, u_int, int);
   struct inpcb *
           in_pcblookup_bind(struct inpcbtable *,
               struct in_addr, u_int);
   struct inpcb *
           in_pcblookup_connect(struct inpcbtable *,
               struct in_addr, u_int, struct in_addr, u_int);
   int     in_pcbnotify(struct inpcbtable *, struct in_addr, u_int,
               struct in_addr, u_int, int, void (*)(struct inpcb *, int));
   void    in_pcbnotifyall(struct inpcbtable *, struct in_addr, int,
               void (*)(struct inpcb *, int));
   void    in_pcbpurgeif0(struct inpcbtable *, struct ifnet *);
   void    in_pcbpurgeif(struct inpcbtable *, struct ifnet *);
   void    in_pcbstate(struct inpcb *, int);
   void    in_rtchange(struct inpcb *, int);
   void    in_setpeeraddr(struct inpcb *, struct mbuf *);
   void    in_setsockaddr(struct inpcb *, struct mbuf *);
   struct rtentry *
           in_pcbrtentry(struct inpcb *);
   extern struct sockaddr_in *in_selectsrc(struct sockaddr_in *,
           struct route *, int, struct ip_moptions *, int *);
   #endif
   
   #endif /* !_NETINET_IN_PCB_H_ */

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