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.
    4  * Copyright (c) 2004-2006 Robert N. M. Watson
    5  * All rights reserved.
    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  * 4. Neither the name of the University nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  * Copyright (c) 1995, Mike Mitchell
   32  * All rights reserved.
   33  *
   34  * Redistribution and use in source and binary forms, with or without
   35  * modification, are permitted provided that the following conditions
   36  * are met:
   37  * 1. Redistributions of source code must retain the above copyright
   38  *    notice, this list of conditions and the following disclaimer.
   39  * 2. Redistributions in binary form must reproduce the above copyright
   40  *    notice, this list of conditions and the following disclaimer in the
   41  *    documentation and/or other materials provided with the distribution.
   42  * 3. All advertising materials mentioning features or use of this software
   43  *    must display the following acknowledgement:
   44  *      This product includes software developed by the University of
   45  *      California, Berkeley and its contributors.
   46  * 4. Neither the name of the University nor the names of its contributors
   47  *    may be used to endorse or promote products derived from this software
   48  *    without specific prior written permission.
   49  *
   50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   60  * SUCH DAMAGE.
   61  *
   62  *      @(#)ipx_pcb.h
   63  *
   64  * $FreeBSD$
   65  */
   66 
   67 #ifndef _NETIPX_IPX_PCB_H_
   68 #define _NETIPX_IPX_PCB_H_
   69 
   70 /*
   71  * IPX protocol interface control block.
   72  */
   73 struct ipxpcb {
   74         LIST_ENTRY(ipxpcb) ipxp_list;
   75         struct  socket *ipxp_socket;    /* back pointer to socket */
   76         struct  ipx_addr ipxp_faddr;    /* destination address */
   77         struct  ipx_addr ipxp_laddr;    /* socket's address */
   78         caddr_t ipxp_pcb;               /* protocol specific stuff */
   79         struct  route ipxp_route;       /* routing information */
   80         struct  ipx_addr ipxp_lastdst;  /* validate cached route for dg socks*/
   81         short   ipxp_flags;
   82         u_char  ipxp_dpt;               /* default packet type for ipx_output */
   83         u_char  ipxp_rpt;               /* last received packet type by ipx_input() */
   84         struct  mtx ipxp_mtx;
   85 };
   86 
   87 /*
   88  * Additional IPX pcb-related types and variables.
   89  */
   90 LIST_HEAD(ipxpcbhead, ipxpcb);
   91 extern struct ipxpcbhead ipxpcb_list;
   92 extern struct ipxpcbhead ipxrawpcb_list;
   93 
   94 #ifdef _KERNEL
   95 extern struct mtx       ipxpcb_list_mtx;
   96 #endif
   97 
   98 /*
   99  * IPX/SPX PCB flags.
  100  */
  101 #define IPXP_IN_ABORT           0x1     /* Calling abort through socket. */
  102 #define IPXP_RAWIN              0x2     /* Show headers on input. */
  103 #define IPXP_RAWOUT             0x4     /* Show header on output. */
  104 #define IPXP_ALL_PACKETS        0x8     /* Turn off higher proto processing. */
  105 #define IPXP_CHECKSUM           0x10    /* Use checksum on this socket. */
  106 #define IPXP_DROPPED            0x20    /* Connection dropped. */
  107 #define IPXP_SPX                0x40    /* SPX PCB. */
  108 
  109 #define IPX_WILDCARD            1
  110 
  111 #define ipxp_lport ipxp_laddr.x_port
  112 #define ipxp_fport ipxp_faddr.x_port
  113 
  114 #define sotoipxpcb(so)          ((struct ipxpcb *)((so)->so_pcb))
  115 
  116 /*
  117  * Nominal space allocated to an IPX socket.
  118  */
  119 #define IPXSNDQ         16384
  120 #define IPXRCVQ         40960
  121 
  122 #ifdef _KERNEL
  123 int     ipx_pcballoc(struct socket *so, struct ipxpcbhead *head,
  124             struct thread *p);
  125 int     ipx_pcbbind(struct ipxpcb *ipxp, struct sockaddr *nam,
  126             struct thread *p);
  127 int     ipx_pcbconnect(struct ipxpcb *ipxp, struct sockaddr *nam,
  128             struct thread *p);
  129 void    ipx_pcbdetach(struct ipxpcb *ipxp);
  130 void    ipx_pcbdisconnect(struct ipxpcb *ipxp);
  131 void    ipx_pcbfree(struct ipxpcb *ipxp);
  132 struct ipxpcb *ipx_pcblookup(struct ipx_addr *faddr, u_short lport, int wildp);
  133 void    ipx_getpeeraddr(struct ipxpcb *ipxp, struct sockaddr **nam);
  134 void    ipx_getsockaddr(struct ipxpcb *ipxp, struct sockaddr **nam);
  135 
  136 #define IPX_LIST_LOCK_INIT()    mtx_init(&ipxpcb_list_mtx, "ipx_list_mtx", \
  137                                     NULL, MTX_DEF | MTX_RECURSE)
  138 #define IPX_LIST_LOCK()         mtx_lock(&ipxpcb_list_mtx)
  139 #define IPX_LIST_UNLOCK()       mtx_unlock(&ipxpcb_list_mtx)
  140 #define IPX_LIST_LOCK_ASSERT()  mtx_assert(&ipxpcb_list_mtx, MA_OWNED)
  141 
  142 #define IPX_LOCK_INIT(ipx)      mtx_init(&(ipx)->ipxp_mtx, "ipx_mtx", NULL, \
  143                                     MTX_DEF)
  144 #define IPX_LOCK_DESTROY(ipx)   mtx_destroy(&(ipx)->ipxp_mtx)
  145 #define IPX_LOCK(ipx)           mtx_lock(&(ipx)->ipxp_mtx)
  146 #define IPX_UNLOCK(ipx)         mtx_unlock(&(ipx)->ipxp_mtx)
  147 #define IPX_LOCK_ASSERT(ipx)    mtx_assert(&(ipx)->ipxp_mtx, MA_OWNED)
  148 #endif /* _KERNEL */
  149 
  150 #endif /* !_NETIPX_IPX_PCB_H_ */

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