The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netipx/ipx_pcb.h

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    1 /*-
    2  * Copyright (c) 1984, 1985, 1986, 1987, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  * Copyright (c) 1995, Mike Mitchell
    5  * Copyright (c) 2004-2006 Robert N. M. Watson
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. All advertising materials mentioning features or use of this software
   16  *    must display the following acknowledgement:
   17  *      This product includes software developed by the University of
   18  *      California, Berkeley and its contributors.
   19  * 4. Neither the name of the University nor the names of its contributors
   20  *    may be used to endorse or promote products derived from this software
   21  *    without specific prior written permission.
   22  *
   23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   33  * SUCH DAMAGE.
   34  *
   35  *      @(#)ipx_pcb.h
   36  *
   37  * $FreeBSD$
   38  */
   39 
   40 #ifndef _NETIPX_IPX_PCB_H_
   41 #define _NETIPX_IPX_PCB_H_
   42 
   43 /*
   44  * IPX protocol interface control block.
   45  */
   46 struct ipxpcb {
   47         LIST_ENTRY(ipxpcb) ipxp_list;
   48         struct  socket *ipxp_socket;    /* back pointer to socket */
   49         struct  ipx_addr ipxp_faddr;    /* destination address */
   50         struct  ipx_addr ipxp_laddr;    /* socket's address */
   51         caddr_t ipxp_pcb;               /* protocol specific stuff */
   52         struct  route ipxp_route;       /* routing information */
   53         struct  ipx_addr ipxp_lastdst;  /* validate cached route for dg socks*/
   54         short   ipxp_flags;
   55         u_char  ipxp_dpt;               /* default packet type for ipx_output */
   56         u_char  ipxp_rpt;               /* last received packet type by ipx_input() */
   57         struct  mtx ipxp_mtx;
   58 };
   59 
   60 /*
   61  * Additional IPX pcb-related types and variables.
   62  */
   63 LIST_HEAD(ipxpcbhead, ipxpcb);
   64 extern struct ipxpcbhead ipxpcb_list;
   65 extern struct ipxpcbhead ipxrawpcb_list;
   66 
   67 #ifdef _KERNEL
   68 extern struct mtx       ipxpcb_list_mtx;
   69 #endif
   70 
   71 /*
   72  * IPX/SPX PCB flags.
   73  */
   74 #define IPXP_IN_ABORT           0x1     /* Calling abort through socket. */
   75 #define IPXP_RAWIN              0x2     /* Show headers on input. */
   76 #define IPXP_RAWOUT             0x4     /* Show header on output. */
   77 #define IPXP_ALL_PACKETS        0x8     /* Turn off higher proto processing. */
   78 #define IPXP_CHECKSUM           0x10    /* Use checksum on this socket. */
   79 #define IPXP_DROPPED            0x20    /* Connection dropped. */
   80 #define IPXP_SPX                0x40    /* SPX PCB. */
   81 
   82 #define IPX_WILDCARD            1
   83 
   84 #define ipxp_lport ipxp_laddr.x_port
   85 #define ipxp_fport ipxp_faddr.x_port
   86 
   87 #define sotoipxpcb(so)          ((struct ipxpcb *)((so)->so_pcb))
   88 
   89 /*
   90  * Nominal space allocated to an IPX socket.
   91  */
   92 #define IPXSNDQ         16384
   93 #define IPXRCVQ         40960
   94 
   95 #ifdef _KERNEL
   96 int     ipx_pcballoc(struct socket *so, struct ipxpcbhead *head,
   97                           struct thread *p);
   98 int     ipx_pcbbind(struct ipxpcb *ipxp, struct sockaddr *nam,
   99                          struct thread *p);
  100 int     ipx_pcbconnect(struct ipxpcb *ipxp, struct sockaddr *nam,
  101                             struct thread *p);
  102 void    ipx_pcbdetach(struct ipxpcb *ipxp);
  103 void    ipx_pcbdisconnect(struct ipxpcb *ipxp);
  104 void    ipx_pcbfree(struct ipxpcb *ipxp);
  105 struct ipxpcb *
  106         ipx_pcblookup(struct ipx_addr *faddr, int lport, int wildp);
  107 void    ipx_setpeeraddr(struct ipxpcb *ipxp, struct sockaddr **nam);
  108 void    ipx_setsockaddr(struct ipxpcb *ipxp, struct sockaddr **nam);
  109 
  110 #define IPX_LIST_LOCK_INIT()    mtx_init(&ipxpcb_list_mtx, "ipx_list_mtx", \
  111                                     NULL, MTX_DEF | MTX_RECURSE)
  112 #define IPX_LIST_LOCK()         mtx_lock(&ipxpcb_list_mtx)
  113 #define IPX_LIST_UNLOCK()       mtx_unlock(&ipxpcb_list_mtx)
  114 #define IPX_LIST_LOCK_ASSERT()  mtx_assert(&ipxpcb_list_mtx, MA_OWNED)
  115 
  116 #define IPX_LOCK_INIT(ipx)      mtx_init(&(ipx)->ipxp_mtx, "ipx_mtx", NULL, \
  117                                     MTX_DEF)
  118 #define IPX_LOCK_DESTROY(ipx)   mtx_destroy(&(ipx)->ipxp_mtx)
  119 #define IPX_LOCK(ipx)           mtx_lock(&(ipx)->ipxp_mtx)
  120 #define IPX_UNLOCK(ipx)         mtx_unlock(&(ipx)->ipxp_mtx)
  121 #define IPX_LOCK_ASSERT(ipx)    mtx_assert(&(ipx)->ipxp_mtx, MA_OWNED)
  122 #endif /* _KERNEL */
  123 
  124 #endif /* !_NETIPX_IPX_PCB_H_ */

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