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

     /*
      * 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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. 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
     * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.14.2.4 1999/09/05 08:18:20 peter Exp $
     */
    
    #ifndef _NETINET_IN_PCB_H_
    #define _NETINET_IN_PCB_H_
    
    #include <sys/queue.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.
     */
    LIST_HEAD(inpcbhead, inpcb);
    
    struct inpcb {
            LIST_ENTRY(inpcb) inp_list;             /* list for all PCBs of this proto */
            LIST_ENTRY(inpcb) inp_hash;             /* hash list */
            struct  inpcbinfo *inp_pcbinfo; /* PCB list info */
            struct  in_addr inp_faddr;      /* foreign host table entry */
            struct  in_addr inp_laddr;      /* local host table entry */
            u_short inp_fport;              /* foreign port */
            u_short inp_lport;              /* local port */
            caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
            struct  socket *inp_socket;     /* back pointer to socket */
            struct  mbuf *inp_options;      /* IP options */
            struct  route inp_route;        /* placeholder for routing entry */
            int     inp_flags;              /* generic IP/datagram flags */
            u_char  inp_ip_tos;             /* type of service proto */
            u_char  inp_ip_ttl;             /* time to live proto */
            u_char  inp_ip_p;               /* protocol proto */
            u_char  pad[1];                 /* alignment */
            struct  ip_moptions *inp_moptions; /* IP multicast options */
    #if 0 /* Someday, perhaps... */
            struct  ip inp_ip;              /* header prototype; should have more */
    #endif
    };
    
    struct inpcbinfo {
            struct inpcbhead *listhead;
            struct inpcbhead *hashbase;
            unsigned long hashmask;
            unsigned short lastport;
            unsigned short lastlow;
            unsigned short lasthi;
    };
    
    #define INP_PCBHASH(faddr, lport, fport, mask) \
            (((faddr) ^ ((faddr) >> 16) ^ (lport) ^ (fport)) & (mask))
    
    /* 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    /* user wants "high" port binding */
    #define INP_LOWPORT             0x20    /* user wants "low" port binding */
    #define INP_ANONPORT            0x40    /* port chosen for user */
    #define INP_RECVIF              0x80    /* receive incoming interface */
    #define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
                                            INP_RECVIF)
    
    #define INPLOOKUP_WILDCARD      1
    
   #define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
   
   #ifdef KERNEL
   void     in_losing __P((struct inpcb *));
   int      in_pcballoc __P((struct socket *, struct inpcbinfo *));
   int      in_pcbbind __P((struct inpcb *, struct mbuf *));
   int      in_pcbconnect __P((struct inpcb *, struct mbuf *));
   void     in_pcbdetach __P((struct inpcb *));
   void     in_pcbdisconnect __P((struct inpcb *));
   int      in_pcbladdr __P((struct inpcb *, struct mbuf *,
               struct sockaddr_in **));
   struct inpcb *
            in_pcblookup __P((struct inpcbinfo *,
               struct in_addr, u_int, struct in_addr, u_int, int));
   struct inpcb *
            in_pcblookuphash __P((struct inpcbinfo *,
               struct in_addr, u_int, struct in_addr, u_int, int));
   void     in_pcbnotify __P((struct inpcbhead *, struct sockaddr *,
               u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)));
   void     in_pcbrehash __P((struct inpcb *));
   void     in_setpeeraddr __P((struct inpcb *, struct mbuf *));
   void     in_setsockaddr __P((struct inpcb *, struct mbuf *));
   #endif
   
   #endif

Cache object: 7a22aaa2edf96d5a815d0c4c787d5fef