FreeBSD/Linux Kernel Cross Reference
sys/compat/svr4_32/svr4_32_net.c

     /*      $NetBSD: svr4_32_net.c,v 1.18.10.1 2009/04/04 23:36:27 snj Exp $         */
     
     /*-
      * Copyright (c) 1994, 2008, 2009 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Christos Zoulas.
      *
     * 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
     */
    
    /*
     * Emulate /dev/{udp,tcp,...}
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: svr4_32_net.c,v 1.18.10.1 2009/04/04 23:36:27 snj Exp $");
    
    #define COMPAT_SVR4 1
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/systm.h>
    #include <sys/buf.h>
    #include <sys/malloc.h>
    #include <sys/ioctl.h>
    #include <sys/tty.h>
    #include <sys/file.h>
    #include <sys/filedesc.h>
    #include <sys/fcntl.h>
    #include <sys/select.h>
    #include <sys/socket.h>
    #include <sys/socketvar.h>
    #include <sys/protosw.h>
    #include <sys/domain.h>
    #include <net/if.h>
    #include <netinet/in.h>
    #include <sys/proc.h>
    #include <sys/vnode.h>
    #include <sys/device.h>
    #include <sys/conf.h>
    #include <sys/mount.h>
    
    #include <sys/syscallargs.h>
    
    #include <compat/svr4_32/svr4_32_types.h>
    #include <compat/svr4_32/svr4_32_util.h>
    #include <compat/svr4_32/svr4_32_signal.h>
    #include <compat/svr4_32/svr4_32_lwp.h>
    #include <compat/svr4_32/svr4_32_ucontext.h>
    #include <compat/svr4_32/svr4_32_syscallargs.h>
    #include <compat/svr4_32/svr4_32_ioctl.h>
    #include <compat/svr4_32/svr4_32_stropts.h>
    #include <compat/svr4_32/svr4_32_socket.h>
    
    /*
     * Device minor numbers
     */
    enum {
            dev_ptm                 = 10,
            dev_arp                 = 26,
            dev_icmp                = 27,
            dev_ip                  = 28,
            dev_tcp                 = 35,
            dev_udp                 = 36,
            dev_rawip               = 37,
            dev_unix_dgram          = 38,
            dev_unix_stream         = 39,
            dev_unix_ord_stream     = 40
    };
    
    int svr4_32_netattach(int);
    
    int svr4_soo_close(file_t *);
    int svr4_ptm_alloc(struct proc *);
    
    static const struct fileops svr4_32_netops = {
            .fo_read = soo_read,
            .fo_write = soo_write,
           .fo_ioctl = soo_ioctl,
           .fo_fcntl = soo_fcntl,
           .fo_poll = soo_poll,
           .fo_stat = soo_stat,
           .fo_close = svr4_soo_close,
           .fo_drain = soo_drain,
   };
   
   
   /*
    * Used by new config, but we don't need it.
    */
   int
   svr4_32_netattach(int n)
   {
           return 0;
   }
   
   struct svr4_strm *
   svr4_32_stream_get(file_t *fp)
   {
           struct socket *so;
           struct svr4_strm *st;
   
           if (fp == NULL || fp->f_type != DTYPE_SOCKET)
                   return NULL;
   
           so = (struct socket *) fp->f_data;
   
           if (so->so_internal)
                   return so->so_internal;
   
           /* Allocate a new one. */
           fp->f_ops = &svr4_32_netops;
           st = malloc(sizeof(struct svr4_strm), M_NETADDR, M_WAITOK);
           st->s_family = so->so_proto->pr_domain->dom_family;
           st->s_cmd = ~0;
           st->s_afd = -1;
           st->s_eventmask = 0;
           so->so_internal = st;
   
           return st;
   }

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