sys/compat/svr4_32/svr4_32_net.c

   1 /*      $NetBSD: svr4_32_net.c,v 1.20 2009/12/09 21:32:58 dsl Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1994, 2008, 2009 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Christos Zoulas.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * Emulate /dev/{udp,tcp,...}
  34  */
  35
  36 #include <sys/cdefs.h>
  37 __KERNEL_RCSID(0, "$NetBSD: svr4_32_net.c,v 1.20 2009/12/09 21:32:58 dsl Exp $");
  38
  39 #define COMPAT_SVR4 1
  40
  41 #include <sys/param.h>
  42 #include <sys/kernel.h>
  43 #include <sys/systm.h>
  44 #include <sys/buf.h>
  45 #include <sys/malloc.h>
  46 #include <sys/ioctl.h>
  47 #include <sys/tty.h>
  48 #include <sys/file.h>
  49 #include <sys/filedesc.h>
  50 #include <sys/fcntl.h>
  51 #include <sys/select.h>
  52 #include <sys/socket.h>
  53 #include <sys/socketvar.h>
  54 #include <sys/protosw.h>
  55 #include <sys/domain.h>
  56 #include <net/if.h>
  57 #include <netinet/in.h>
  58 #include <sys/proc.h>
  59 #include <sys/vnode.h>
  60 #include <sys/device.h>
  61 #include <sys/conf.h>
  62 #include <sys/mount.h>
  63
  64 #include <sys/syscallargs.h>
  65
  66 #include <compat/svr4_32/svr4_32_types.h>
  67 #include <compat/svr4_32/svr4_32_util.h>
  68 #include <compat/svr4_32/svr4_32_signal.h>
  69 #include <compat/svr4_32/svr4_32_lwp.h>
  70 #include <compat/svr4_32/svr4_32_ucontext.h>
  71 #include <compat/svr4_32/svr4_32_syscallargs.h>
  72 #include <compat/svr4_32/svr4_32_ioctl.h>
  73 #include <compat/svr4_32/svr4_32_stropts.h>
  74 #include <compat/svr4_32/svr4_32_socket.h>
  75
  76 /*
  77  * Device minor numbers
  78  */
  79 enum {
  80         dev_ptm                 = 10,
  81         dev_arp                 = 26,
  82         dev_icmp                = 27,
  83         dev_ip                  = 28,
  84         dev_tcp                 = 35,
  85         dev_udp                 = 36,
  86         dev_rawip               = 37,
  87         dev_unix_dgram          = 38,
  88         dev_unix_stream         = 39,
  89         dev_unix_ord_stream     = 40
  90 };
  91
  92 int svr4_32_netattach(int);
  93
  94 int svr4_soo_close(file_t *);
  95 int svr4_ptm_alloc(struct proc *);
  96
  97 static const struct fileops svr4_32_netops = {
  98         .fo_read = soo_read,
  99         .fo_write = soo_write,
 100         .fo_ioctl = soo_ioctl,
 101         .fo_fcntl = soo_fcntl,
 102         .fo_poll = soo_poll,
 103         .fo_stat = soo_stat,
 104         .fo_close = svr4_soo_close,
 105         .fo_restart = soo_restart,
 106 };
 107
 108
 109 /*
 110  * Used by new config, but we don't need it.
 111  */
 112 int
 113 svr4_32_netattach(int n)
 114 {
 115         return 0;
 116 }
 117
 118 struct svr4_strm *
 119 svr4_32_stream_get(file_t *fp)
 120 {
 121         struct socket *so;
 122         struct svr4_strm *st;
 123
 124         if (fp == NULL || fp->f_type != DTYPE_SOCKET)
 125                 return NULL;
 126
 127         so = (struct socket *) fp->f_data;
 128
 129         if (so->so_internal)
 130                 return so->so_internal;
 131
 132         /* Allocate a new one. */
 133         fp->f_ops = &svr4_32_netops;
 134         st = malloc(sizeof(struct svr4_strm), M_NETADDR, M_WAITOK);
 135         st->s_family = so->so_proto->pr_domain->dom_family;
 136         st->s_cmd = ~0;
 137         st->s_afd = -1;
 138         st->s_eventmask = 0;
 139         so->so_internal = st;
 140
 141         return st;
 142 }