/ QRZ! Ham Radio 1 / QRZ Ham Radio Callsign Database - December 1993.iso / ucsd / packet / tcpip / sys5 / unixkitr.z / unixkitr

MacOS 8.1

Win98

DOS

browse contents

view JSON data

view as text

+--------+-------------------------+-------------------------+--------+--------+
|00000000| 75 6e 69 78 6b 69 74 2f | 00 00 00 00 00 00 00 00 |unixkit/|........|
|00000010| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000050| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000060| 00 00 00 00 20 20 20 37 | 35 35 20 00 20 32 34 32 |....   7|55 . 242|
|00000070| 31 37 20 00 20 20 20 20 | 33 36 20 00 20 20 20 20 |17 .    |36 .    |
|00000080| 20 20 20 20 20 20 30 20 | 20 35 31 33 37 31 34 32 |      0 | 5137142|
|00000090| 33 31 37 20 20 20 35 35 | 36 37 00 20 00 00 00 00 |317   55|67. ....|
|000000a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000100| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000110| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000120| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000130| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000140| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000150| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000160| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000170| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000180| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000190| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000200| 75 6e 69 78 6b 69 74 2f | 74 75 6e 64 72 76 72 2f |unixkit/|tundrvr/|
|00000210| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000220| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000230| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000240| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000250| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000260| 00 00 00 00 20 20 20 37 | 35 35 20 00 20 32 34 32 |....   7|55 . 242|
|00000270| 31 37 20 00 20 20 20 20 | 33 36 20 00 20 20 20 20 |17 .    |36 .    |
|00000280| 20 20 20 20 20 20 30 20 | 20 35 31 31 37 34 33 31 |      0 | 5117431|
|00000290| 34 37 34 20 20 20 37 32 | 37 36 00 20 00 00 00 00 |474   72|76. ....|
|000002a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000300| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000310| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000320| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000330| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000340| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000350| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000360| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000370| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000380| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000390| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000400| 75 6e 69 78 6b 69 74 2f | 74 75 6e 64 72 76 72 2f |unixkit/|tundrvr/|
|00000410| 4d 41 4b 45 44 45 56 2e | 74 75 6e 00 00 00 00 00 |MAKEDEV.|tun.....|
|00000420| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000430| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000440| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000450| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000460| 00 00 00 00 20 20 20 37 | 35 35 20 00 20 32 34 32 |....   7|55 . 242|
|00000470| 31 37 20 00 20 20 20 20 | 33 36 20 00 20 20 20 20 |17 .    |36 .    |
|00000480| 20 20 20 20 36 33 33 20 | 20 34 34 30 31 33 32 30 |    633 | 4401320|
|00000490| 37 34 33 20 20 31 31 31 | 34 33 00 20 00 00 00 00 |743  111|43. ....|
|000004a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000500| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000510| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000520| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000530| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000540| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000550| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000560| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000570| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000580| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000590| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000005a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000005b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000005c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000005d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000005e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000005f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000600| 23 21 20 2f 62 69 6e 2f | 73 68 0a 23 0a 23 20 4d |#! /bin/|sh.#.# M|
|00000610| 41 4b 45 44 45 56 2e 74 | 75 6e 20 2d 20 6d 61 6b |AKEDEV.t|un - mak|
|00000620| 65 20 73 70 65 63 69 61 | 6c 20 64 65 76 69 63 65 |e specia|l device|
|00000630| 73 20 66 6f 72 20 74 68 | 65 20 74 75 6e 6e 65 6c |s for th|e tunnel|
|00000640| 0a 23 0a 23 20 24 48 65 | 61 64 65 72 3a 20 4d 41 |.#.# $He|ader: MA|
|00000650| 4b 45 44 45 56 2e 74 75 | 6e 2c 76 20 31 2e 31 20 |KEDEV.tu|n,v 1.1 |
|00000660| 38 37 2f 31 31 2f 30 34 | 20 31 35 3a 32 34 3a 30 |87/11/04| 15:24:0|
|00000670| 34 20 6a 70 6f 20 4c 6f | 63 6b 65 64 20 24 0a 23 |4 jpo Lo|cked $.#|
|00000680| 0a 23 20 24 4c 6f 67 3a | 09 4d 41 4b 45 44 45 56 |.# $Log:|.MAKEDEV|
|00000690| 2e 74 75 6e 2c 76 20 24 | 0a 23 20 52 65 76 69 73 |.tun,v $|.# Revis|
|000006a0| 69 6f 6e 20 31 2e 31 20 | 20 38 37 2f 31 31 2f 30 |ion 1.1 | 87/11/0|
|000006b0| 34 20 20 31 35 3a 32 34 | 3a 30 34 20 20 6a 70 6f |4  15:24|:04  jpo|
|000006c0| 0a 23 20 49 6e 69 74 69 | 61 6c 20 72 65 76 69 73 |.# Initi|al revis|
|000006d0| 69 6f 6e 0a 23 20 0a 23 | 0a 63 61 73 65 20 24 23 |ion.# .#|.case $#|
|000006e0| 20 69 6e 0a 09 32 29 20 | 3b 3b 0a 09 2a 29 20 65 | in..2) |;;..*) e|
|000006f0| 63 68 6f 20 22 55 73 61 | 67 65 3a 20 24 30 20 4d |cho "Usa|ge: $0 M|
|00000700| 61 6a 6f 72 2d 64 65 76 | 69 63 65 2d 6e 6f 20 4e |ajor-dev|ice-no N|
|00000710| 75 6d 62 65 72 2d 6f 66 | 22 20 31 3e 26 32 20 0a |umber-of|" 1>&2 .|
|00000720| 65 73 61 63 0a 0a 6d 61 | 6a 6f 72 3d 24 31 0a 6d |esac..ma|jor=$1.m|
|00000730| 69 6e 6f 72 3d 24 32 0a | 0a 75 6d 61 73 6b 20 30 |inor=$2.|.umask 0|
|00000740| 36 36 0a 69 3d 30 0a 77 | 68 69 6c 65 20 5b 20 24 |66.i=0.w|hile [ $|
|00000750| 69 20 2d 6c 74 20 24 6d | 69 6e 6f 72 20 5d 0a 64 |i -lt $m|inor ].d|
|00000760| 6f 0a 09 2f 65 74 63 2f | 6d 6b 6e 6f 64 20 2f 64 |o../etc/|mknod /d|
|00000770| 65 76 2f 74 75 6e 24 69 | 20 63 20 24 6d 61 6a 6f |ev/tun$i| c $majo|
|00000780| 72 20 24 69 0a 09 69 3d | 60 65 78 70 72 20 24 69 |r $i..i=|`expr $i|
|00000790| 20 2b 20 31 60 0a 64 6f | 6e 65 0a 00 00 00 00 00 | + 1`.do|ne......|
|000007a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000007b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000007c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000007d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000007e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000007f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000800| 75 6e 69 78 6b 69 74 2f | 74 75 6e 64 72 76 72 2f |unixkit/|tundrvr/|
|00000810| 69 66 5f 74 75 6e 2e 63 | 00 00 00 00 00 00 00 00 |if_tun.c|........|
|00000820| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000830| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000840| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000850| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000860| 00 00 00 00 20 20 20 36 | 34 34 20 00 20 32 34 32 |....   6|44 . 242|
|00000870| 31 37 20 00 20 20 20 20 | 33 36 20 00 20 20 20 20 |17 .    |36 .    |
|00000880| 20 20 33 34 36 35 30 20 | 20 35 31 31 37 34 33 31 |  34650 | 5117431|
|00000890| 31 33 34 20 20 31 31 30 | 33 34 00 20 00 00 00 00 |134  110|34. ....|
|000008a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000900| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000910| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000920| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000930| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000940| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000950| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000960| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000970| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000980| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000990| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000a00| 2f 2a 20 69 66 5f 74 75 | 6e 2e 63 20 2d 20 74 75 |/* if_tu|n.c - tu|
|00000a10| 6e 6e 65 6c 20 69 6e 74 | 65 72 66 61 63 65 20 6d |nnel int|erface m|
|00000a20| 6f 64 75 6c 65 20 26 20 | 64 72 69 76 65 72 20 2a |odule & |driver *|
|00000a30| 2f 0a 0a 2f 2a 0a 20 2a | 20 43 6f 70 79 72 69 67 |/../*. *| Copyrig|
|00000a40| 68 74 20 28 63 29 20 31 | 39 38 38 2c 20 4a 75 6c |ht (c) 1|988, Jul|
|00000a50| 69 61 6e 20 4f 6e 69 6f | 6e 73 2e 20 0a 20 2a 0a |ian Onio|ns. . *.|
|00000a60| 20 2a 20 54 68 69 73 20 | 73 6f 75 72 63 65 20 6d | * This |source m|
|00000a70| 61 79 20 62 65 20 66 72 | 65 65 6c 79 20 64 69 73 |ay be fr|eely dis|
|00000a80| 74 72 69 62 75 74 65 64 | 2c 20 68 6f 77 65 76 65 |tributed|, howeve|
|00000a90| 72 20 49 20 77 6f 75 6c | 64 20 62 65 20 69 6e 74 |r I woul|d be int|
|00000aa0| 65 72 65 73 74 65 64 0a | 20 2a 20 69 6e 20 61 6e |erested.| * in an|
|00000ab0| 79 20 63 68 61 6e 67 65 | 73 20 74 68 61 74 20 61 |y change|s that a|
|00000ac0| 72 65 20 6d 61 64 65 2e | 0a 20 2a 2f 0a 0a 2f 2a |re made.|. */../*|
|00000ad0| 0a 20 2a 20 39 31 2f 31 | 32 2f 30 35 20 2d 20 44 |. * 91/1|2/05 - D|
|00000ae0| 69 73 61 62 6c 65 64 20 | 74 68 65 20 74 65 73 74 |isabled |the test|
|00000af0| 20 66 6f 72 20 73 75 70 | 65 72 2d 75 73 65 72 20 | for sup|er-user |
|00000b00| 6f 6e 20 6f 70 65 6e 2e | 20 20 54 68 69 73 20 70 |on open.|  This p|
|00000b10| 6f 73 65 64 20 6d 6f 72 | 65 0a 20 2a 20 6f 66 20 |osed mor|e. * of |
|00000b20| 61 20 73 65 63 75 72 69 | 74 79 20 72 69 73 6b 20 |a securi|ty risk |
|00000b30| 74 68 61 6e 20 61 20 62 | 65 6e 65 66 69 74 20 69 |than a b|enefit i|
|00000b40| 6e 20 73 6f 6d 65 20 63 | 61 73 65 73 2c 20 61 73 |n some c|ases, as|
|00000b50| 20 69 74 20 65 6e 63 6f | 75 72 61 67 65 64 0a 20 | it enco|uraged. |
|00000b60| 2a 20 64 65 76 65 6c 6f | 70 65 72 73 20 74 6f 20 |* develo|pers to |
|00000b70| 77 72 69 74 65 20 28 68 | 6f 72 72 6f 72 73 21 29 |write (h|orrors!)|
|00000b80| 20 73 75 69 64 20 72 6f | 6f 74 20 73 63 72 69 70 | suid ro|ot scrip|
|00000b90| 74 73 20 61 6e 64 20 70 | 72 6f 67 72 61 6d 73 2e |ts and p|rograms.|
|00000ba0| 2e 2e 0a 20 2a 20 4e 6f | 72 6d 61 6c 20 70 65 72 |... * No|rmal per|
|00000bb0| 6d 69 73 73 69 6f 6e 73 | 20 6f 6e 20 2f 64 65 76 |missions| on /dev|
|00000bc0| 2f 74 75 6e 30 20 73 68 | 6f 75 6c 64 20 73 75 66 |/tun0 sh|ould suf|
|00000bd0| 66 69 63 65 20 74 6f 20 | 63 6f 6e 74 72 6f 6c 20 |fice to |control |
|00000be0| 61 63 63 65 73 73 2e 0a | 20 2a 20 28 54 68 65 20 |access..| * (The |
|00000bf0| 74 72 75 6c 79 20 73 65 | 63 75 72 69 74 79 20 63 |truly se|curity c|
|00000c00| 6f 6e 73 69 6f 75 73 20 | 73 68 6f 75 6c 64 6e 27 |onsious |shouldn'|
|00000c10| 74 20 62 65 20 72 75 6e | 6e 69 6e 67 20 61 20 74 |t be run|ning a t|
|00000c20| 75 6e 6e 65 6c 20 64 72 | 69 76 65 72 20 61 6e 79 |unnel dr|iver any|
|00000c30| 77 61 79 2e 29 0a 20 2a | 20 4d 69 6b 65 20 57 65 |way.). *| Mike We|
|00000c40| 73 74 65 72 68 6f 66 20 | 2d 20 4d 69 6b 65 2e 57 |sterhof |- Mike.W|
|00000c50| 65 73 74 65 72 68 6f 66 | 40 43 65 6e 74 72 61 6c |esterhof|@Central|
|00000c60| 2e 53 75 6e 2e 43 4f 4d | 0a 20 2a 0a 20 2a 20 39 |.Sun.COM|. *. * 9|
|00000c70| 30 2f 30 32 2f 30 36 20 | 31 35 3a 30 33 20 2d 20 |0/02/06 |15:03 - |
|00000c80| 46 69 78 65 64 20 61 20 | 62 75 67 20 69 6e 20 77 |Fixed a |bug in w|
|00000c90| 68 65 72 65 20 54 49 4f | 43 47 50 47 52 50 20 61 |here TIO|CGPGRP a|
|00000ca0| 6e 64 20 54 49 4f 43 53 | 50 47 52 50 20 77 65 72 |nd TIOCS|PGRP wer|
|00000cb0| 65 0a 20 2a 20 6d 69 78 | 65 64 20 75 70 2e 20 41 |e. * mix|ed up. A|
|00000cc0| 6e 64 65 72 73 20 4b 6c | 65 6d 65 74 73 20 2d 20 |nders Kl|emets - |
|00000cd0| 6b 6c 65 6d 65 74 73 40 | 73 69 63 73 2e 73 65 0a |klemets@|sics.se.|
|00000ce0| 20 2a 0a 20 2a 20 24 48 | 65 61 64 65 72 3a 20 69 | *. * $H|eader: i|
|00000cf0| 66 5f 74 75 6e 2e 63 2c | 76 20 31 2e 31 33 20 38 |f_tun.c,|v 1.13 8|
|00000d00| 38 2f 30 37 2f 31 31 20 | 30 38 3a 32 38 3a 35 31 |8/07/11 |08:28:51|
|00000d10| 20 6a 70 6f 20 45 78 70 | 20 24 0a 20 2a 20 0a 20 | jpo Exp| $. * . |
|00000d20| 2a 20 24 4c 6f 67 3a 09 | 69 66 5f 74 75 6e 2e 63 |* $Log:.|if_tun.c|
|00000d30| 2c 76 20 24 0a 20 2a 20 | 52 65 76 69 73 69 6f 6e |,v $. * |Revision|
|00000d40| 20 31 2e 31 33 20 20 38 | 38 2f 30 37 2f 31 31 20 | 1.13  8|8/07/11 |
|00000d50| 20 30 38 3a 32 38 3a 35 | 31 20 20 6a 70 6f 0a 20 | 08:28:5|1  jpo. |
|00000d60| 2a 20 53 6f 6d 65 20 74 | 69 64 79 69 6e 67 20 75 |* Some t|idying u|
|00000d70| 70 0a 20 2a 20 0a 20 2a | 20 52 65 76 69 73 69 6f |p. * . *| Revisio|
|00000d80| 6e 20 31 2e 31 32 20 20 | 38 37 2f 31 32 2f 31 30 |n 1.12  |87/12/10|
|00000d90| 20 20 30 39 3a 31 36 3a | 32 39 20 20 6a 70 6f 0a |  09:16:|29  jpo.|
|00000da0| 20 2a 20 44 65 63 69 64 | 65 64 20 74 68 65 20 76 | * Decid|ed the v|
|00000db0| 61 78 2f 6d 74 70 72 20 | 77 61 73 20 75 6e 6e 65 |ax/mtpr |was unne|
|00000dc0| 63 65 73 73 61 79 2e 0a | 20 2a 20 0a 20 2a 20 52 |cessay..| * . * R|
|00000dd0| 65 76 69 73 69 6f 6e 20 | 31 2e 31 31 20 20 38 37 |evision |1.11  87|
|00000de0| 2f 31 32 2f 31 30 20 20 | 30 39 3a 31 30 3a 33 36 |/12/10  |09:10:36|
|00000df0| 20 20 6a 70 6f 0a 20 2a | 20 46 69 78 65 64 20 73 |  jpo. *| Fixed s|
|00000e00| 6f 6d 65 20 6d 69 6e 6f | 72 20 74 68 69 6e 67 73 |ome mino|r things|
|00000e10| 20 26 20 31 20 6d 61 6a | 6f 72 20 62 75 67 2e 0a | & 1 maj|or bug..|
|00000e20| 20 2a 20 0a 20 2a 20 52 | 65 76 69 73 69 6f 6e 20 | * . * R|evision |
|00000e30| 31 2e 31 30 20 20 38 37 | 2f 31 31 2f 30 34 20 20 |1.10  87|/11/04  |
|00000e40| 31 34 3a 32 37 3a 34 31 | 20 20 6a 70 6f 0a 20 2a |14:27:41|  jpo. *|
|00000e50| 20 41 20 66 65 77 20 73 | 61 6e 69 74 79 20 63 68 | A few s|anity ch|
|00000e60| 65 63 6b 73 20 61 64 64 | 65 64 2e 0a 20 2a 20 0a |ecks add|ed.. * .|
|00000e70| 20 2a 20 52 65 76 69 73 | 69 6f 6e 20 31 2e 39 20 | * Revis|ion 1.9 |
|00000e80| 20 38 37 2f 31 31 2f 30 | 34 20 20 31 34 3a 31 33 | 87/11/0|4  14:13|
|00000e90| 3a 34 35 20 20 6a 70 6f | 0a 20 2a 20 41 64 64 65 |:45  jpo|. * Adde|
|00000ea0| 64 20 73 6f 6d 65 20 69 | 6f 63 74 6c 73 20 66 6f |d some i|octls fo|
|00000eb0| 72 20 6e 6f 6e 2d 62 6c | 6f 63 6b 69 6e 67 20 26 |r non-bl|ocking &|
|00000ec0| 20 61 73 79 6e 63 20 49 | 2f 4f 0a 20 2a 20 0a 20 | async I|/O. * . |
|00000ed0| 2a 20 52 65 76 69 73 69 | 6f 6e 20 31 2e 38 09 20 |* Revisi|on 1.8. |
|00000ee0| 38 37 2f 31 30 2f 31 39 | 20 20 31 30 3a 32 38 3a |87/10/19|  10:28:|
|00000ef0| 31 34 20 20 6a 70 6f 0a | 20 2a 20 41 6e 6f 74 68 |14  jpo.| * Anoth|
|00000f00| 65 72 20 74 6f 75 63 68 | 20 75 70 20 28 73 69 67 |er touch| up (sig|
|00000f10| 68 29 0a 20 2a 20 0a 20 | 2a 20 52 65 76 69 73 69 |h). * . |* Revisi|
|00000f20| 6f 6e 20 31 2e 37 09 20 | 38 37 2f 31 30 2f 31 39 |on 1.7. |87/10/19|
|00000f30| 20 20 31 30 3a 32 35 3a | 34 38 20 20 6a 70 6f 0a |  10:25:|48  jpo.|
|00000f40| 20 2a 20 54 6f 75 63 68 | 20 75 70 2e 0a 20 2a 20 | * Touch| up.. * |
|00000f50| 0a 20 2a 20 52 65 76 69 | 73 69 6f 6e 20 31 2e 36 |. * Revi|sion 1.6|
|00000f60| 09 20 38 37 2f 31 30 2f | 31 39 20 20 30 39 3a 31 |. 87/10/|19  09:1|
|00000f70| 35 3a 31 34 20 20 6a 70 | 6f 0a 20 2a 20 54 6f 75 |5:14  jp|o. * Tou|
|00000f80| 63 68 20 75 70 2e 0a 20 | 2a 20 0a 20 2a 20 52 65 |ch up.. |* . * Re|
|00000f90| 76 69 73 69 6f 6e 20 31 | 2e 35 09 20 38 37 2f 31 |vision 1|.5. 87/1|
|00000fa0| 30 2f 31 39 20 20 30 38 | 3a 33 34 3a 35 31 20 20 |0/19  08|:34:51  |
|00000fb0| 6a 70 6f 0a 20 2a 20 47 | 65 6e 65 72 61 6c 20 63 |jpo. * G|eneral c|
|00000fc0| 6c 65 61 6e 20 75 70 20 | 2d 20 70 6c 75 73 20 73 |lean up |- plus s|
|00000fd0| 75 6e 20 73 70 65 63 69 | 66 69 63 20 66 69 78 65 |un speci|fic fixe|
|00000fe0| 73 0a 20 2a 20 0a 20 2a | 20 52 65 76 69 73 69 6f |s. * . *| Revisio|
|00000ff0| 6e 20 31 2e 34 09 20 38 | 37 2f 31 30 2f 31 36 20 |n 1.4. 8|7/10/16 |
|00001000| 20 31 37 3a 31 30 3a 31 | 32 20 20 6a 70 6f 0a 20 | 17:10:1|2  jpo. |
|00001010| 2a 20 50 75 72 67 65 64 | 20 61 6c 6c 20 69 6f 63 |* Purged| all ioc|
|00001020| 74 6c 20 72 65 61 64 2f | 77 72 69 74 65 73 20 61 |tl read/|writes a|
|00001030| 6e 64 20 6e 6f 6e 2d 73 | 74 61 6e 64 61 72 64 20 |nd non-s|tandard |
|00001040| 72 6f 75 74 69 6e 67 20 | 73 74 75 66 66 2e 0a 20 |routing |stuff.. |
|00001050| 2a 0a 20 2a 20 52 65 76 | 69 73 69 6f 6e 20 31 2e |*. * Rev|ision 1.|
|00001060| 33 09 20 38 37 2f 31 30 | 2f 30 35 20 20 31 31 3a |3. 87/10|/05  11:|
|00001070| 35 37 3a 30 39 20 20 6a | 70 6f 0a 20 2a 20 4d 6f |57:09  j|po. * Mo|
|00001080| 72 65 20 64 65 62 75 67 | 67 69 6e 67 20 2d 20 69 |re debug|ging - i|
|00001090| 6e 20 65 72 72 6f 72 20 | 6d 61 69 6e 6c 79 2e 0a |n error |mainly..|
|000010a0| 20 2a 20 0a 20 2a 20 52 | 65 76 69 73 69 6f 6e 20 | * . * R|evision |
|000010b0| 31 2e 32 09 20 38 37 2f | 31 30 2f 30 34 20 20 31 |1.2. 87/|10/04  1|
|000010c0| 38 3a 32 39 3a 34 35 20 | 20 6a 70 6f 0a 20 2a 20 |8:29:45 | jpo. * |
|000010d0| 53 65 6c 65 63 74 20 26 | 20 72 65 61 64 2f 77 72 |Select &| read/wr|
|000010e0| 69 74 65 20 77 6f 72 6b | 69 6e 67 2e 0a 20 2a 2f |ite work|ing.. */|
|000010f0| 0a 0a 23 69 6e 63 6c 75 | 64 65 20 22 74 75 6e 2e |..#inclu|de "tun.|
|00001100| 68 22 0a 23 69 66 20 4e | 54 55 4e 20 3e 20 30 0a |h".#if N|TUN > 0.|
|00001110| 0a 2f 2a 0a 20 2a 20 54 | 75 6e 6e 65 6c 20 64 72 |./*. * T|unnel dr|
|00001120| 69 76 65 72 2e 0a 20 2a | 0a 20 2a 20 54 68 69 73 |iver.. *|. * This|
|00001130| 20 64 72 69 76 65 72 20 | 74 61 6b 65 73 20 70 61 | driver |takes pa|
|00001140| 63 6b 65 74 73 20 6f 66 | 66 20 74 68 65 20 49 50 |ckets of|f the IP|
|00001150| 20 69 2f 66 20 61 6e 64 | 20 68 61 6e 64 73 20 74 | i/f and| hands t|
|00001160| 68 65 6d 20 75 70 20 74 | 6f 20 61 0a 20 2a 20 75 |hem up t|o a. * u|
|00001170| 73 65 72 20 70 72 6f 63 | 65 73 73 20 74 6f 20 68 |ser proc|ess to h|
|00001180| 61 76 65 20 69 74 27 73 | 20 77 69 63 6b 65 64 20 |ave it's| wicked |
|00001190| 77 61 79 20 77 69 74 68 | 2e 20 54 68 69 73 20 64 |way with|. This d|
|000011a0| 72 69 76 65 72 20 68 61 | 73 20 69 74 27 73 0a 20 |river ha|s it's. |
|000011b0| 2a 20 72 6f 6f 74 73 20 | 69 6e 20 61 20 73 69 6d |* roots |in a sim|
|000011c0| 69 6c 61 72 20 64 72 69 | 76 65 72 20 77 72 69 74 |ilar dri|ver writ|
|000011d0| 74 65 6e 20 62 79 20 50 | 68 69 6c 20 43 6f 63 6b |ten by P|hil Cock|
|000011e0| 63 72 6f 66 74 20 28 66 | 6f 72 6d 65 72 6c 79 29 |croft (f|ormerly)|
|000011f0| 20 61 74 0a 20 2a 20 55 | 43 4c 2e 20 54 68 69 73 | at. * U|CL. This|
|00001200| 20 64 72 69 76 65 72 20 | 69 73 20 62 61 73 65 64 | driver |is based|
|00001210| 20 6d 75 63 68 20 6d 6f | 72 65 20 6f 6e 20 72 65 | much mo|re on re|
|00001220| 61 64 2f 77 72 69 74 65 | 2f 73 65 6c 65 63 74 20 |ad/write|/select |
|00001230| 6d 6f 64 65 20 6f 66 0a | 20 2a 20 6f 70 65 72 61 |mode of.| * opera|
|00001240| 74 69 6f 6e 20 74 68 6f | 75 67 68 2e 0a 20 2a 20 |tion tho|ugh.. * |
|00001250| 0a 20 2a 20 4a 75 6c 69 | 61 6e 20 4f 6e 69 6f 6e |. * Juli|an Onion|
|00001260| 73 20 3c 6a 70 6f 40 63 | 73 2e 6e 6f 74 74 2e 61 |s <jpo@c|s.nott.a|
|00001270| 63 2e 75 6b 3e 0a 20 2a | 20 4e 6f 74 74 69 6e 67 |c.uk>. *| Notting|
|00001280| 68 61 6d 20 55 6e 69 76 | 65 72 73 69 74 79 20 31 |ham Univ|ersity 1|
|00001290| 39 38 37 2e 0a 20 2a 2f | 0a 0a 23 64 65 66 69 6e |987.. */|..#defin|
|000012a0| 65 20 53 55 4e 4f 53 34 | 09 2f 2a 20 65 78 70 6c |e SUNOS4|./* expl|
|000012b0| 69 63 69 74 6c 79 20 64 | 65 66 69 6e 65 64 20 68 |icitly d|efined h|
|000012c0| 65 72 65 2c 20 62 65 63 | 61 75 73 65 20 69 20 64 |ere, bec|ause i d|
|000012d0| 69 64 6e 27 74 20 77 61 | 6e 74 20 74 6f 0a 09 09 |idn't wa|nt to...|
|000012e0| 20 20 20 63 68 61 6e 67 | 65 20 74 68 65 20 6b 65 |   chang|e the ke|
|000012f0| 72 6e 65 6c 20 4d 61 6b | 65 66 69 6c 65 73 20 2a |rnel Mak|efiles *|
|00001300| 2f 0a 0a 23 69 66 64 65 | 66 20 53 55 4e 4f 53 34 |/..#ifde|f SUNOS4|
|00001310| 0a 23 64 65 66 69 6e 65 | 20 42 53 44 34 5f 33 0a |.#define| BSD4_3.|
|00001320| 23 65 6e 64 69 66 20 2f | 2a 20 53 55 4e 4f 53 34 |#endif /|* SUNOS4|
|00001330| 20 2a 2f 0a 0a 23 69 66 | 64 65 66 20 53 55 4e 4f | */..#if|def SUNO|
|00001340| 53 34 0a 23 69 6e 63 6c | 75 64 65 20 3c 73 79 73 |S4.#incl|ude <sys|
|00001350| 2f 70 61 72 61 6d 2e 68 | 3e 0a 23 69 6e 63 6c 75 |/param.h|>.#inclu|
|00001360| 64 65 20 3c 73 79 73 2f | 73 79 73 74 6d 2e 68 3e |de <sys/|systm.h>|
|00001370| 0a 23 69 6e 63 6c 75 64 | 65 20 3c 73 79 73 2f 6d |.#includ|e <sys/m|
|00001380| 62 75 66 2e 68 3e 0a 23 | 69 6e 63 6c 75 64 65 20 |buf.h>.#|include |
|00001390| 3c 73 79 73 2f 66 69 6c | 65 2e 68 3e 0a 23 69 6e |<sys/fil|e.h>.#in|
|000013a0| 63 6c 75 64 65 20 3c 73 | 79 73 2f 73 6f 63 6b 65 |clude <s|ys/socke|
|000013b0| 74 2e 68 3e 0a 23 69 6e | 63 6c 75 64 65 20 3c 73 |t.h>.#in|clude <s|
|000013c0| 79 73 2f 65 72 72 6e 6f | 2e 68 3e 0a 23 69 6e 63 |ys/errno|.h>.#inc|
|000013d0| 6c 75 64 65 20 3c 73 79 | 73 2f 69 6f 63 74 6c 2e |lude <sy|s/ioctl.|
|000013e0| 68 3e 0a 23 69 6e 63 6c | 75 64 65 20 3c 73 79 73 |h>.#incl|ude <sys|
|000013f0| 2f 75 73 65 72 2e 68 3e | 0a 23 69 6e 63 6c 75 64 |/user.h>|.#includ|
|00001400| 65 20 3c 73 79 73 2f 70 | 72 6f 63 2e 68 3e 0a 0a |e <sys/p|roc.h>..|
|00001410| 23 69 6e 63 6c 75 64 65 | 20 3c 6e 65 74 2f 69 66 |#include| <net/if|
|00001420| 2e 68 3e 0a 23 69 6e 63 | 6c 75 64 65 20 3c 6e 65 |.h>.#inc|lude <ne|
|00001430| 74 2f 6e 65 74 69 73 72 | 2e 68 3e 0a 23 69 6e 63 |t/netisr|.h>.#inc|
|00001440| 6c 75 64 65 20 3c 6e 65 | 74 2f 72 6f 75 74 65 2e |lude <ne|t/route.|
|00001450| 68 3e 0a 0a 23 69 6e 63 | 6c 75 64 65 20 3c 6e 65 |h>..#inc|lude <ne|
|00001460| 74 69 6e 65 74 2f 69 6e | 2e 68 3e 0a 23 69 6e 63 |tinet/in|.h>.#inc|
|00001470| 6c 75 64 65 20 3c 6e 65 | 74 69 6e 65 74 2f 69 6e |lude <ne|tinet/in|
|00001480| 5f 73 79 73 74 6d 2e 68 | 3e 0a 23 69 6e 63 6c 75 |_systm.h|>.#inclu|
|00001490| 64 65 20 3c 6e 65 74 69 | 6e 65 74 2f 69 70 2e 68 |de <neti|net/ip.h|
|000014a0| 3e 0a 23 69 6e 63 6c 75 | 64 65 20 3c 6e 65 74 69 |>.#inclu|de <neti|
|000014b0| 6e 65 74 2f 69 70 5f 76 | 61 72 2e 68 3e 0a 0a 23 |net/ip_v|ar.h>..#|
|000014c0| 69 6e 63 6c 75 64 65 20 | 3c 73 79 73 2f 75 69 6f |include |<sys/uio|
|000014d0| 2e 68 3e 0a 23 69 6e 63 | 6c 75 64 65 20 3c 6e 65 |.h>.#inc|lude <ne|
|000014e0| 74 69 6e 65 74 2f 69 66 | 5f 74 6e 72 65 67 2e 68 |tinet/if|_tnreg.h|
|000014f0| 3e 0a 23 69 6e 63 6c 75 | 64 65 20 3c 6e 65 74 69 |>.#inclu|de <neti|
|00001500| 6e 65 74 2f 69 6e 5f 76 | 61 72 2e 68 3e 0a 23 65 |net/in_v|ar.h>.#e|
|00001510| 6c 73 65 20 2f 2a 20 53 | 55 4e 4f 53 34 20 2a 2f |lse /* S|UNOS4 */|
|00001520| 0a 2f 2a 20 74 68 69 73 | 20 6d 61 79 20 6e 6f 74 |./* this| may not|
|00001530| 20 77 6f 72 6b 20 66 6f | 72 20 42 53 44 34 5f 33 | work fo|r BSD4_3|
|00001540| 20 6b 65 72 6e 65 6c 73 | 20 2a 2f 0a 23 69 6e 63 | kernels| */.#inc|
|00001550| 6c 75 64 65 20 22 2e 2e | 2f 68 2f 70 61 72 61 6d |lude "..|/h/param|
|00001560| 2e 68 22 0a 23 69 6e 63 | 6c 75 64 65 20 22 2e 2e |.h".#inc|lude "..|
|00001570| 2f 68 2f 73 79 73 74 6d | 2e 68 22 0a 23 69 6e 63 |/h/systm|.h".#inc|
|00001580| 6c 75 64 65 20 22 2e 2e | 2f 68 2f 6d 62 75 66 2e |lude "..|/h/mbuf.|
|00001590| 68 22 0a 23 69 6e 63 6c | 75 64 65 20 22 2e 2e 2f |h".#incl|ude "../|
|000015a0| 68 2f 66 69 6c 65 2e 68 | 22 0a 23 69 6e 63 6c 75 |h/file.h|".#inclu|
|000015b0| 64 65 20 22 2e 2e 2f 68 | 2f 73 6f 63 6b 65 74 2e |de "../h|/socket.|
|000015c0| 68 22 0a 23 69 6e 63 6c | 75 64 65 20 22 2e 2e 2f |h".#incl|ude "../|
|000015d0| 68 2f 65 72 72 6e 6f 2e | 68 22 0a 23 69 6e 63 6c |h/errno.|h".#incl|
|000015e0| 75 64 65 20 22 2e 2e 2f | 68 2f 69 6f 63 74 6c 2e |ude "../|h/ioctl.|
|000015f0| 68 22 0a 23 69 6e 63 6c | 75 64 65 20 22 2e 2e 2f |h".#incl|ude "../|
|00001600| 68 2f 75 73 65 72 2e 68 | 22 0a 23 69 6e 63 6c 75 |h/user.h|".#inclu|
|00001610| 64 65 20 22 2e 2e 2f 68 | 2f 70 72 6f 63 2e 68 22 |de "../h|/proc.h"|
|00001620| 0a 0a 23 69 6e 63 6c 75 | 64 65 20 22 2e 2e 2f 6e |..#inclu|de "../n|
|00001630| 65 74 2f 69 66 2e 68 22 | 0a 23 69 6e 63 6c 75 64 |et/if.h"|.#includ|
|00001640| 65 20 22 2e 2e 2f 6e 65 | 74 2f 6e 65 74 69 73 72 |e "../ne|t/netisr|
|00001650| 2e 68 22 0a 23 69 6e 63 | 6c 75 64 65 20 22 2e 2e |.h".#inc|lude "..|
|00001660| 2f 6e 65 74 2f 72 6f 75 | 74 65 2e 68 22 0a 0a 23 |/net/rou|te.h"..#|
|00001670| 69 6e 63 6c 75 64 65 20 | 22 2e 2e 2f 6e 65 74 69 |include |"../neti|
|00001680| 6e 65 74 2f 69 6e 2e 68 | 22 0a 23 69 6e 63 6c 75 |net/in.h|".#inclu|
|00001690| 64 65 20 22 2e 2e 2f 6e | 65 74 69 6e 65 74 2f 69 |de "../n|etinet/i|
|000016a0| 6e 5f 73 79 73 74 6d 2e | 68 22 0a 23 69 6e 63 6c |n_systm.|h".#incl|
|000016b0| 75 64 65 20 22 2e 2e 2f | 6e 65 74 69 6e 65 74 2f |ude "../|netinet/|
|000016c0| 69 70 2e 68 22 0a 23 69 | 6e 63 6c 75 64 65 20 22 |ip.h".#i|nclude "|
|000016d0| 2e 2e 2f 6e 65 74 69 6e | 65 74 2f 69 70 5f 76 61 |../netin|et/ip_va|
|000016e0| 72 2e 68 22 0a 0a 23 69 | 6e 63 6c 75 64 65 20 22 |r.h"..#i|nclude "|
|000016f0| 2e 2e 2f 68 2f 75 69 6f | 2e 68 22 0a 23 69 6e 63 |../h/uio|.h".#inc|
|00001700| 6c 75 64 65 20 22 2e 2e | 2f 6e 65 74 69 6e 65 74 |lude "..|/netinet|
|00001710| 2f 69 66 5f 74 6e 72 65 | 67 2e 68 22 0a 23 65 6e |/if_tnre|g.h".#en|
|00001720| 64 69 66 20 2f 2a 20 53 | 55 4e 4f 53 34 20 2a 2f |dif /* S|UNOS4 */|
|00001730| 0a 0a 23 64 65 66 69 6e | 65 20 54 55 4e 44 45 42 |..#defin|e TUNDEB|
|00001740| 55 47 09 69 66 20 28 74 | 75 6e 64 65 62 75 67 29 |UG.if (t|undebug)|
|00001750| 20 70 72 69 6e 74 66 0a | 0a 69 6e 74 09 09 74 75 | printf.|.int..tu|
|00001760| 6e 64 65 62 75 67 20 3d | 20 30 3b 0a 73 74 72 75 |ndebug =| 0;.stru|
|00001770| 63 74 20 74 75 6e 63 74 | 6c 0a 7b 0a 09 75 5f 73 |ct tunct|l.{..u_s|
|00001780| 68 6f 72 74 09 09 74 75 | 6e 5f 66 6c 61 67 73 3b |hort..tu|n_flags;|
|00001790| 09 2f 2a 20 6d 69 73 63 | 20 66 6c 61 67 73 20 2a |./* misc| flags *|
|000017a0| 2f 0a 09 73 74 72 75 63 | 74 20 69 66 6e 65 74 09 |/..struc|t ifnet.|
|000017b0| 74 75 6e 5f 69 66 3b 09 | 09 2f 2a 20 74 68 65 20 |tun_if;.|./* the |
|000017c0| 69 6e 74 65 72 66 61 63 | 65 20 2a 2f 0a 09 69 6e |interfac|e */..in|
|000017d0| 74 09 09 74 75 6e 5f 70 | 67 72 70 3b 09 2f 2a 20 |t..tun_p|grp;./* |
|000017e0| 74 68 65 20 70 72 6f 63 | 65 73 73 20 67 72 6f 75 |the proc|ess grou|
|000017f0| 70 20 2d 20 69 66 20 61 | 6e 79 20 2a 2f 0a 09 73 |p - if a|ny */..s|
|00001800| 74 72 75 63 74 20 70 72 | 6f 63 20 20 20 20 2a 74 |truct pr|oc    *t|
|00001810| 75 6e 5f 72 73 65 6c 3b | 09 2f 2a 20 72 65 61 64 |un_rsel;|./* read|
|00001820| 20 73 65 6c 65 63 74 20 | 2a 2f 0a 09 73 74 72 75 | select |*/..stru|
|00001830| 63 74 20 70 72 6f 63 20 | 20 20 20 2a 74 75 6e 5f |ct proc |   *tun_|
|00001840| 77 73 65 6c 3b 09 2f 2a | 20 77 72 69 74 65 20 73 |wsel;./*| write s|
|00001850| 65 6c 65 63 74 20 28 6e | 6f 74 20 75 73 65 64 29 |elect (n|ot used)|
|00001860| 20 2a 2f 0a 7d 09 74 75 | 6e 63 74 6c 5b 4e 54 55 | */.}.tu|nctl[NTU|
|00001870| 4e 5d 3b 0a 0a 65 78 74 | 65 72 6e 20 69 6e 74 09 |N];..ext|ern int.|
|00001880| 69 66 71 6d 61 78 6c 65 | 6e 3b 0a 0a 69 6e 74 09 |ifqmaxle|n;..int.|
|00001890| 09 74 75 6e 6f 75 74 70 | 75 74 20 28 29 2c 20 74 |.tunoutp|ut (), t|
|000018a0| 75 6e 69 6f 63 74 6c 20 | 28 29 2c 20 74 75 6e 69 |unioctl |(), tuni|
|000018b0| 6e 69 74 20 28 29 3b 0a | 0a 2f 2a 20 74 75 6e 6e |nit ();.|./* tunn|
|000018c0| 65 6c 20 6f 70 65 6e 20 | 2d 20 6d 75 73 74 20 62 |el open |- must b|
|000018d0| 65 20 73 75 70 65 72 75 | 73 65 72 20 26 20 74 68 |e superu|ser & th|
|000018e0| 65 20 64 65 76 69 63 65 | 20 6d 75 73 74 20 62 65 |e device| must be|
|000018f0| 20 63 6f 6e 66 69 67 75 | 72 65 64 20 69 6e 20 2a | configu|red in *|
|00001900| 2f 0a 74 75 6e 6f 70 65 | 6e 20 28 64 65 76 2c 20 |/.tunope|n (dev, |
|00001910| 66 6c 61 67 29 0a 64 65 | 76 5f 74 09 09 64 65 76 |flag).de|v_t..dev|
|00001920| 3b 0a 7b 0a 09 72 65 67 | 69 73 74 65 72 20 69 6e |;.{..reg|ister in|
|00001930| 74 09 75 6e 69 74 3b 0a | 09 73 74 72 75 63 74 20 |t.unit;.|.struct |
|00001940| 74 75 6e 63 74 6c 20 20 | 2a 74 70 3b 0a 09 72 65 |tunctl  |*tp;..re|
|00001950| 67 69 73 74 65 72 20 73 | 74 72 75 63 74 20 69 66 |gister s|truct if|
|00001960| 6e 65 74 20 2a 69 66 70 | 3b 0a 0a 2f 2a 20 55 6e |net *ifp|;../* Un|
|00001970| 63 6f 6d 6d 65 6e 74 20 | 74 68 69 73 20 63 68 65 |comment |this che|
|00001980| 63 6b 20 74 6f 20 6c 69 | 6d 69 74 20 61 63 63 65 |ck to li|mit acce|
|00001990| 73 73 20 74 6f 20 74 68 | 65 20 73 75 70 65 72 2d |ss to th|e super-|
|000019a0| 75 73 65 72 2e 0a 20 2a | 20 4e 6f 72 6d 61 6c 20 |user.. *| Normal |
|000019b0| 69 6e 73 74 61 6c 6c 61 | 74 69 6f 6e 73 20 63 61 |installa|tions ca|
|000019c0| 6e 20 6a 75 73 74 20 6c | 69 76 65 20 77 69 74 68 |n just l|ive with|
|000019d0| 20 70 65 72 6d 69 73 73 | 69 6f 6e 73 20 6f 6e 20 | permiss|ions on |
|000019e0| 2f 64 65 76 2f 74 75 6e | 3f 0a 20 2a 20 73 65 74 |/dev/tun|?. * set|
|000019f0| 20 76 69 61 20 74 68 65 | 20 63 68 6d 6f 64 20 63 | via the| chmod c|
|00001a00| 6f 6d 6d 61 6e 64 2e 2e | 2e 20 4b 41 39 57 53 42 |ommand..|. KA9WSB|
|00001a10| 0a 20 2a 2f 0a 2f 2a 0a | 09 69 66 20 28 21 73 75 |. */./*.|.if (!su|
|00001a20| 73 65 72 20 28 29 29 0a | 09 09 72 65 74 75 72 6e |ser ()).|..return|
|00001a30| 20 45 41 43 43 45 53 3b | 0a 2a 2f 0a 0a 09 69 66 | EACCES;|.*/...if|
|00001a40| 20 28 28 75 6e 69 74 20 | 3d 20 6d 69 6e 6f 72 20 | ((unit |= minor |
|00001a50| 28 64 65 76 29 29 20 3e | 3d 20 4e 54 55 4e 29 0a |(dev)) >|= NTUN).|
|00001a60| 09 09 72 65 74 75 72 6e | 20 28 45 4e 58 49 4f 29 |..return| (ENXIO)|
|00001a70| 3b 0a 09 74 70 20 3d 20 | 26 74 75 6e 63 74 6c 5b |;..tp = |&tunctl[|
|00001a80| 75 6e 69 74 5d 3b 0a 09 | 69 66 20 28 74 70 2d 3e |unit];..|if (tp->|
|00001a90| 74 75 6e 5f 66 6c 61 67 | 73 20 26 20 54 55 4e 5f |tun_flag|s & TUN_|
|00001aa0| 4f 50 45 4e 29 0a 09 09 | 72 65 74 75 72 6e 20 45 |OPEN)...|return E|
|00001ab0| 4e 58 49 4f 3b 0a 09 69 | 66 20 28 28 74 70 2d 3e |NXIO;..i|f ((tp->|
|00001ac0| 74 75 6e 5f 66 6c 61 67 | 73 20 26 20 54 55 4e 5f |tun_flag|s & TUN_|
|00001ad0| 49 4e 49 54 45 44 29 20 | 3d 3d 20 30 29 20 7b 0a |INITED) |== 0) {.|
|00001ae0| 09 09 74 70 2d 3e 74 75 | 6e 5f 66 6c 61 67 73 20 |..tp->tu|n_flags |
|00001af0| 3d 20 54 55 4e 5f 49 4e | 49 54 45 44 3b 0a 09 09 |= TUN_IN|ITED;...|
|00001b00| 74 75 6e 61 74 74 61 63 | 68 20 28 75 6e 69 74 29 |tunattac|h (unit)|
|00001b10| 3b 0a 09 7d 0a 09 69 66 | 70 20 3d 20 26 74 70 2d |;..}..if|p = &tp-|
|00001b20| 3e 74 75 6e 5f 69 66 3b | 0a 09 74 70 2d 3e 74 75 |>tun_if;|..tp->tu|
|00001b30| 6e 5f 66 6c 61 67 73 20 | 7c 3d 20 54 55 4e 5f 4f |n_flags ||= TUN_O|
|00001b40| 50 45 4e 3b 0a 09 54 55 | 4e 44 45 42 55 47 20 28 |PEN;..TU|NDEBUG (|
|00001b50| 22 25 73 25 64 3a 20 6f | 70 65 6e 5c 6e 22 2c 20 |"%s%d: o|pen\n", |
|00001b60| 69 66 70 2d 3e 69 66 5f | 6e 61 6d 65 2c 20 69 66 |ifp->if_|name, if|
|00001b70| 70 2d 3e 69 66 5f 75 6e | 69 74 29 3b 0a 09 72 65 |p->if_un|it);..re|
|00001b80| 74 75 72 6e 20 28 30 29 | 3b 0a 7d 0a 0a 2f 2a 20 |turn (0)|;.}../* |
|00001b90| 74 75 6e 63 6c 6f 73 65 | 20 2d 20 63 6c 6f 73 65 |tunclose| - close|
|00001ba0| 20 74 68 65 20 64 65 76 | 69 63 65 20 2d 20 6d 61 | the dev|ice - ma|
|00001bb0| 72 6b 20 69 2f 66 20 64 | 6f 77 6e 20 26 20 64 65 |rk i/f d|own & de|
|00001bc0| 6c 65 74 65 20 72 6f 75 | 74 69 6e 67 20 69 6e 66 |lete rou|ting inf|
|00001bd0| 6f 20 2a 2f 0a 74 75 6e | 63 6c 6f 73 65 20 28 64 |o */.tun|close (d|
|00001be0| 65 76 2c 20 66 6c 61 67 | 29 0a 64 65 76 5f 74 09 |ev, flag|).dev_t.|
|00001bf0| 09 64 65 76 3b 0a 7b 0a | 09 69 6e 74 09 09 73 3b |.dev;.{.|.int..s;|
|00001c00| 0a 09 69 6e 74 09 09 72 | 63 6f 6c 6c 3b 0a 09 72 |..int..r|coll;..r|
|00001c10| 65 67 69 73 74 65 72 20 | 69 6e 74 09 75 6e 69 74 |egister |int.unit|
|00001c20| 20 3d 20 6d 69 6e 6f 72 | 20 28 64 65 76 29 3b 0a | = minor| (dev);.|
|00001c30| 09 72 65 67 69 73 74 65 | 72 20 73 74 72 75 63 74 |.registe|r struct|
|00001c40| 20 74 75 6e 63 74 6c 20 | 2a 74 70 20 3d 20 26 74 | tunctl |*tp = &t|
|00001c50| 75 6e 63 74 6c 5b 75 6e | 69 74 5d 3b 0a 09 72 65 |unctl[un|it];..re|
|00001c60| 67 69 73 74 65 72 20 73 | 74 72 75 63 74 20 69 66 |gister s|truct if|
|00001c70| 6e 65 74 20 2a 69 66 70 | 20 3d 20 26 74 70 2d 3e |net *ifp| = &tp->|
|00001c80| 74 75 6e 5f 69 66 3b 0a | 09 72 65 67 69 73 74 65 |tun_if;.|.registe|
|00001c90| 72 20 73 74 72 75 63 74 | 20 6d 62 75 66 20 2a 6d |r struct| mbuf *m|
|00001ca0| 3b 0a 23 69 66 64 65 66 | 20 42 53 44 34 5f 33 0a |;.#ifdef| BSD4_3.|
|00001cb0| 09 2f 2a 0a 09 20 2a 20 | 6d 61 79 62 65 20 77 65 |./*.. * |maybe we|
|00001cc0| 20 73 68 6f 75 6c 64 20 | 76 65 72 69 66 79 20 68 | should |verify h|
|00001cd0| 65 72 65 2c 20 74 68 61 | 74 20 74 68 65 20 61 66 |ere, tha|t the af|
|00001ce0| 20 6f 66 20 74 68 65 0a | 09 20 2a 20 66 69 72 73 | of the.|. * firs|
|00001cf0| 74 20 65 6e 74 72 79 20 | 69 6e 20 69 66 5f 61 64 |t entry |in if_ad|
|00001d00| 64 72 6c 69 73 74 20 69 | 73 20 69 6e 64 65 65 64 |drlist i|s indeed|
|00001d10| 20 41 46 5f 49 4e 45 54 | 2e 0a 09 20 2a 2f 0a 09 | AF_INET|... */..|
|00001d20| 73 74 72 75 63 74 20 69 | 6e 5f 69 66 61 64 64 72 |struct i|n_ifaddr|
|00001d30| 20 2a 69 61 20 3d 20 20 | 28 73 74 72 75 63 74 20 | *ia =  |(struct |
|00001d40| 69 6e 5f 69 66 61 64 64 | 72 20 2a 29 20 69 66 70 |in_ifadd|r *) ifp|
|00001d50| 2d 3e 69 66 5f 61 64 64 | 72 6c 69 73 74 3b 0a 23 |->if_add|rlist;.#|
|00001d60| 65 6e 64 69 66 0a 0a 09 | 72 63 6f 6c 6c 20 3d 20 |endif...|rcoll = |
|00001d70| 74 70 2d 3e 74 75 6e 5f | 66 6c 61 67 73 20 26 20 |tp->tun_|flags & |
|00001d80| 54 55 4e 5f 52 43 4f 4c | 4c 3b 0a 09 74 70 2d 3e |TUN_RCOL|L;..tp->|
|00001d90| 74 75 6e 5f 66 6c 61 67 | 73 20 26 3d 20 54 55 4e |tun_flag|s &= TUN|
|00001da0| 5f 49 4e 49 54 45 44 3b | 0a 0a 09 2f 2a 0a 09 20 |_INITED;|.../*.. |
|00001db0| 2a 20 6a 75 6e 6b 20 61 | 6c 6c 20 70 65 6e 64 69 |* junk a|ll pendi|
|00001dc0| 6e 67 20 6f 75 74 70 75 | 74 0a 09 20 2a 2f 0a 09 |ng outpu|t.. */..|
|00001dd0| 64 6f 20 7b 0a 09 09 73 | 20 3d 20 73 70 6c 69 6d |do {...s| = splim|
|00001de0| 70 20 28 29 3b 0a 09 09 | 49 46 5f 44 45 51 55 45 |p ();...|IF_DEQUE|
|00001df0| 55 45 20 28 26 69 66 70 | 2d 3e 69 66 5f 73 6e 64 |UE (&ifp|->if_snd|
|00001e00| 2c 20 6d 29 3b 0a 09 09 | 73 70 6c 78 20 28 73 29 |, m);...|splx (s)|
|00001e10| 3b 0a 09 09 69 66 20 28 | 6d 29 20 2f 2a 20 61 63 |;...if (|m) /* ac|
|00001e20| 74 75 61 6c 6c 79 20 2d | 20 6d 5f 66 72 65 65 6d |tually -| m_freem|
|00001e30| 20 63 68 65 63 6b 73 20 | 74 68 69 73 20 2d 20 62 | checks |this - b|
|00001e40| 75 74 20 77 68 61 74 20 | 74 68 65 20 68 65 6c 6c |ut what |the hell|
|00001e50| 20 2a 2f 0a 09 09 09 6d | 5f 66 72 65 65 6d 20 28 | */....m|_freem (|
|00001e60| 6d 29 3b 0a 09 7d 20 77 | 68 69 6c 65 20 28 6d 20 |m);..} w|hile (m |
|00001e70| 21 3d 20 30 29 3b 0a 09 | 69 66 20 28 69 66 70 2d |!= 0);..|if (ifp-|
|00001e80| 3e 69 66 5f 66 6c 61 67 | 73 20 26 20 49 46 46 5f |>if_flag|s & IFF_|
|00001e90| 55 50 29 20 7b 0a 09 09 | 73 20 3d 20 73 70 6c 69 |UP) {...|s = spli|
|00001ea0| 6d 70 20 28 29 3b 0a 09 | 09 69 66 5f 64 6f 77 6e |mp ();..|.if_down|
|00001eb0| 20 28 69 66 70 29 3b 0a | 09 09 69 66 20 28 69 66 | (ifp);.|..if (if|
|00001ec0| 70 2d 3e 69 66 5f 66 6c | 61 67 73 20 26 20 49 46 |p->if_fl|ags & IF|
|00001ed0| 46 5f 52 55 4e 4e 49 4e | 47 29 0a 23 69 66 64 65 |F_RUNNIN|G).#ifde|
|00001ee0| 66 20 42 53 44 34 5f 33 | 0a 09 09 09 72 74 69 6e |f BSD4_3|....rtin|
|00001ef0| 69 74 28 20 26 69 61 2d | 3e 69 61 5f 64 73 74 61 |it( &ia-|>ia_dsta|
|00001f00| 64 64 72 2c 20 26 69 61 | 2d 3e 69 61 5f 61 64 64 |ddr, &ia|->ia_add|
|00001f10| 72 2c 20 28 69 6e 74 29 | 53 49 4f 43 44 45 4c 52 |r, (int)|SIOCDELR|
|00001f20| 54 2c 20 52 54 46 5f 48 | 4f 53 54 29 3b 0a 23 65 |T, RTF_H|OST);.#e|
|00001f30| 6c 73 65 20 2f 2a 20 21 | 20 42 53 44 34 5f 33 20 |lse /* !| BSD4_3 |
|00001f40| 2a 2f 0a 09 09 09 69 66 | 5f 72 74 69 6e 69 74 20 |*/....if|_rtinit |
|00001f50| 28 69 66 70 2c 20 2d 31 | 29 3b 09 2f 2a 20 64 65 |(ifp, -1|);./* de|
|00001f60| 6c 65 74 65 20 72 6f 75 | 74 69 6e 67 20 69 6e 66 |lete rou|ting inf|
|00001f70| 6f 20 2a 2f 0a 23 65 6e | 64 69 66 20 2f 2a 20 42 |o */.#en|dif /* B|
|00001f80| 53 44 34 5f 33 20 2a 2f | 0a 09 09 73 70 6c 78 20 |SD4_3 */|...splx |
|00001f90| 28 73 29 3b 0a 09 7d 0a | 09 74 70 20 2d 3e 20 74 |(s);..}.|.tp -> t|
|00001fa0| 75 6e 5f 70 67 72 70 20 | 3d 20 30 3b 0a 09 69 66 |un_pgrp |= 0;..if|
|00001fb0| 20 28 74 70 20 2d 3e 20 | 74 75 6e 5f 72 73 65 6c | (tp -> |tun_rsel|
|00001fc0| 29 0a 09 09 73 65 6c 77 | 61 6b 65 75 70 20 28 74 |)...selw|akeup (t|
|00001fd0| 70 2d 3e 74 75 6e 5f 72 | 73 65 6c 2c 20 72 63 6f |p->tun_r|sel, rco|
|00001fe0| 6c 6c 29 3b 0a 09 09 0a | 09 74 70 20 2d 3e 20 74 |ll);....|.tp -> t|
|00001ff0| 75 6e 5f 72 73 65 6c 20 | 3d 20 74 70 20 2d 3e 20 |un_rsel |= tp -> |
|00002000| 74 75 6e 5f 77 73 65 6c | 20 3d 20 28 73 74 72 75 |tun_wsel| = (stru|
|00002010| 63 74 20 70 72 6f 63 20 | 2a 29 30 3b 0a 0a 09 54 |ct proc |*)0;...T|
|00002020| 55 4e 44 45 42 55 47 20 | 28 22 25 73 25 64 3a 20 |UNDEBUG |("%s%d: |
|00002030| 63 6c 6f 73 65 64 5c 6e | 22 2c 20 69 66 70 2d 3e |closed\n|", ifp->|
|00002040| 69 66 5f 6e 61 6d 65 2c | 20 69 66 70 2d 3e 69 66 |if_name,| ifp->if|
|00002050| 5f 75 6e 69 74 29 3b 0a | 09 72 65 74 75 72 6e 20 |_unit);.|.return |
|00002060| 28 30 29 3b 0a 7d 0a 0a | 2f 2a 0a 20 2a 20 61 74 |(0);.}..|/*. * at|
|00002070| 74 61 63 68 20 61 6e 20 | 69 6e 74 65 72 66 61 63 |tach an |interfac|
|00002080| 65 20 4e 2e 42 2e 20 61 | 72 67 75 6d 65 6e 74 20 |e N.B. a|rgument |
|00002090| 69 73 20 6e 6f 74 20 73 | 61 6d 65 20 61 73 20 6f |is not s|ame as o|
|000020a0| 74 68 65 72 20 64 72 69 | 76 65 72 73 0a 20 2a 2f |ther dri|vers. */|
|000020b0| 0a 69 6e 74 0a 74 75 6e | 61 74 74 61 63 68 20 28 |.int.tun|attach (|
|000020c0| 75 6e 69 74 29 0a 69 6e | 74 09 09 75 6e 69 74 3b |unit).in|t..unit;|
|000020d0| 0a 7b 0a 09 72 65 67 69 | 73 74 65 72 20 73 74 72 |.{..regi|ster str|
|000020e0| 75 63 74 20 69 66 6e 65 | 74 20 2a 69 66 70 20 3d |uct ifne|t *ifp =|
|000020f0| 20 26 74 75 6e 63 74 6c | 5b 75 6e 69 74 5d 2e 74 | &tunctl|[unit].t|
|00002100| 75 6e 5f 69 66 3b 0a 09 | 72 65 67 69 73 74 65 72 |un_if;..|register|
|00002110| 20 73 74 72 75 63 74 20 | 73 6f 63 6b 61 64 64 72 | struct |sockaddr|
|00002120| 5f 69 6e 20 2a 73 69 6e | 3b 0a 0a 09 69 66 70 2d |_in *sin|;...ifp-|
|00002130| 3e 69 66 5f 75 6e 69 74 | 20 3d 20 75 6e 69 74 3b |>if_unit| = unit;|
|00002140| 0a 09 69 66 70 2d 3e 69 | 66 5f 6e 61 6d 65 20 3d |..ifp->i|f_name =|
|00002150| 20 22 74 75 6e 22 3b 0a | 09 69 66 70 2d 3e 69 66 | "tun";.|.ifp->if|
|00002160| 5f 6d 74 75 20 3d 20 54 | 55 4e 4d 54 55 3b 0a 09 |_mtu = T|UNMTU;..|
|00002170| 69 66 70 2d 3e 69 66 5f | 69 6f 63 74 6c 20 3d 20 |ifp->if_|ioctl = |
|00002180| 74 75 6e 69 6f 63 74 6c | 3b 0a 09 69 66 70 2d 3e |tunioctl|;..ifp->|
|00002190| 69 66 5f 6f 75 74 70 75 | 74 20 3d 20 74 75 6e 6f |if_outpu|t = tuno|
|000021a0| 75 74 70 75 74 3b 0a 09 | 69 66 70 2d 3e 69 66 5f |utput;..|ifp->if_|
|000021b0| 69 6e 69 74 20 3d 20 74 | 75 6e 69 6e 69 74 3b 0a |init = t|uninit;.|
|000021c0| 23 69 66 6e 64 65 66 20 | 42 53 44 34 5f 33 0a 09 |#ifndef |BSD4_3..|
|000021d0| 73 69 6e 20 3d 20 28 73 | 74 72 75 63 74 20 73 6f |sin = (s|truct so|
|000021e0| 63 6b 61 64 64 72 5f 69 | 6e 20 2a 29 20 26 20 69 |ckaddr_i|n *) & i|
|000021f0| 66 70 2d 3e 69 66 5f 61 | 64 64 72 3b 0a 09 73 69 |fp->if_a|ddr;..si|
|00002200| 6e 2d 3e 73 69 6e 5f 66 | 61 6d 69 6c 79 20 3d 20 |n->sin_f|amily = |
|00002210| 41 46 5f 49 4e 45 54 3b | 0a 23 65 6e 64 69 66 0a |AF_INET;|.#endif.|
|00002220| 09 69 66 70 2d 3e 69 66 | 5f 66 6c 61 67 73 20 3d |.ifp->if|_flags =|
|00002230| 20 49 46 46 5f 50 4f 49 | 4e 54 4f 50 4f 49 4e 54 | IFF_POI|NTOPOINT|
|00002240| 3b 0a 09 69 66 70 2d 3e | 69 66 5f 73 6e 64 2e 69 |;..ifp->|if_snd.i|
|00002250| 66 71 5f 6d 61 78 6c 65 | 6e 20 3d 20 69 66 71 6d |fq_maxle|n = ifqm|
|00002260| 61 78 6c 65 6e 3b 0a 09 | 69 66 70 2d 3e 69 66 5f |axlen;..|ifp->if_|
|00002270| 63 6f 6c 6c 69 73 69 6f | 6e 73 20 3d 20 69 66 70 |collisio|ns = ifp|
|00002280| 2d 3e 69 66 5f 69 65 72 | 72 6f 72 73 20 3d 20 69 |->if_ier|rors = i|
|00002290| 66 70 2d 3e 69 66 5f 6f | 65 72 72 6f 72 73 20 3d |fp->if_o|errors =|
|000022a0| 20 30 3b 0a 09 69 66 70 | 2d 3e 69 66 5f 69 70 61 | 0;..ifp|->if_ipa|
|000022b0| 63 6b 65 74 73 20 3d 20 | 69 66 70 2d 3e 69 66 5f |ckets = |ifp->if_|
|000022c0| 6f 70 61 63 6b 65 74 73 | 20 3d 20 30 3b 0a 09 69 |opackets| = 0;..i|
|000022d0| 66 5f 61 74 74 61 63 68 | 20 28 69 66 70 29 3b 0a |f_attach| (ifp);.|
|000022e0| 09 54 55 4e 44 45 42 55 | 47 20 28 22 25 73 25 64 |.TUNDEBU|G ("%s%d|
|000022f0| 3a 20 74 75 6e 61 74 74 | 61 63 68 5c 6e 22 2c 20 |: tunatt|ach\n", |
|00002300| 69 66 70 2d 3e 69 66 5f | 6e 61 6d 65 2c 20 69 66 |ifp->if_|name, if|
|00002310| 70 2d 3e 69 66 5f 75 6e | 69 74 29 3b 0a 09 72 65 |p->if_un|it);..re|
|00002320| 74 75 72 6e 20 30 3b 0a | 7d 0a 0a 69 6e 74 0a 74 |turn 0;.|}..int.t|
|00002330| 75 6e 69 6e 69 74 20 28 | 75 6e 69 74 29 0a 69 6e |uninit (|unit).in|
|00002340| 74 09 09 75 6e 69 74 3b | 0a 7b 0a 09 72 65 67 69 |t..unit;|.{..regi|
|00002350| 73 74 65 72 20 73 74 72 | 75 63 74 20 74 75 6e 63 |ster str|uct tunc|
|00002360| 74 6c 20 2a 74 70 20 3d | 20 26 74 75 6e 63 74 6c |tl *tp =| &tunctl|
|00002370| 5b 75 6e 69 74 5d 3b 0a | 09 72 65 67 69 73 74 65 |[unit];.|.registe|
|00002380| 72 20 73 74 72 75 63 74 | 20 69 66 6e 65 74 20 2a |r struct| ifnet *|
|00002390| 69 66 70 20 3d 20 26 74 | 70 2d 3e 74 75 6e 5f 69 |ifp = &t|p->tun_i|
|000023a0| 66 3b 0a 23 69 66 6e 64 | 65 66 20 42 53 44 34 5f |f;.#ifnd|ef BSD4_|
|000023b0| 33 0a 09 72 65 67 69 73 | 74 65 72 20 73 74 72 75 |3..regis|ter stru|
|000023c0| 63 74 20 73 6f 63 6b 61 | 64 64 72 5f 69 6e 20 2a |ct socka|ddr_in *|
|000023d0| 73 69 6e 3b 0a 0a 09 73 | 69 6e 20 3d 20 28 73 74 |sin;...s|in = (st|
|000023e0| 72 75 63 74 20 73 6f 63 | 6b 61 64 64 72 5f 69 6e |ruct soc|kaddr_in|
|000023f0| 20 2a 29 20 26 20 69 66 | 70 2d 3e 69 66 5f 61 64 | *) & if|p->if_ad|
|00002400| 64 72 3b 0a 09 69 66 20 | 28 73 69 6e 2d 3e 73 69 |dr;..if |(sin->si|
|00002410| 6e 5f 61 64 64 72 2e 73 | 5f 61 64 64 72 20 3d 3d |n_addr.s|_addr ==|
|00002420| 20 30 29 09 2f 2a 20 69 | 66 20 61 64 64 72 65 73 | 0)./* i|f addres|
|00002430| 73 20 73 74 69 6c 6c 20 | 75 6e 6b 6e 6f 77 6e 20 |s still |unknown |
|00002440| 2a 2f 0a 09 09 72 65 74 | 75 72 6e 3b 0a 09 69 66 |*/...ret|urn;..if|
|00002450| 5f 72 74 69 6e 69 74 20 | 28 69 66 70 2c 20 52 54 |_rtinit |(ifp, RT|
|00002460| 46 5f 55 50 29 3b 0a 23 | 65 6e 64 69 66 0a 09 69 |F_UP);.#|endif..i|
|00002470| 66 70 2d 3e 69 66 5f 66 | 6c 61 67 73 20 7c 3d 20 |fp->if_f|lags |= |
|00002480| 49 46 46 5f 55 50 20 7c | 20 49 46 46 5f 52 55 4e |IFF_UP || IFF_RUN|
|00002490| 4e 49 4e 47 3b 0a 09 74 | 70 2d 3e 74 75 6e 5f 66 |NING;..t|p->tun_f|
|000024a0| 6c 61 67 73 20 7c 3d 20 | 54 55 4e 5f 49 41 53 45 |lags |= |TUN_IASE|
|000024b0| 54 3b 0a 09 54 55 4e 44 | 45 42 55 47 20 28 22 25 |T;..TUND|EBUG ("%|
|000024c0| 73 25 64 3a 20 74 75 6e | 69 6e 69 74 5c 6e 22 2c |s%d: tun|init\n",|
|000024d0| 20 69 66 70 2d 3e 69 66 | 5f 6e 61 6d 65 2c 20 69 | ifp->if|_name, i|
|000024e0| 66 70 2d 3e 69 66 5f 75 | 6e 69 74 29 3b 0a 09 72 |fp->if_u|nit);..r|
|000024f0| 65 74 75 72 6e 20 30 3b | 0a 7d 0a 0a 2f 2a 0a 20 |eturn 0;|.}../*. |
|00002500| 2a 20 50 72 6f 63 65 73 | 73 20 61 6e 20 69 6f 63 |* Proces|s an ioc|
|00002510| 74 6c 20 72 65 71 75 65 | 73 74 2e 0a 20 2a 20 54 |tl reque|st.. * T|
|00002520| 68 65 20 70 72 6f 62 6c | 65 6d 20 68 65 72 65 20 |he probl|em here |
|00002530| 69 73 20 34 2e 32 20 70 | 61 73 73 20 61 20 73 74 |is 4.2 p|ass a st|
|00002540| 72 75 63 74 20 69 66 72 | 65 71 20 2a 20 74 6f 20 |ruct ifr|eq * to |
|00002550| 74 68 69 73 20 72 6f 75 | 74 69 6e 65 2c 0a 20 2a |this rou|tine,. *|
|00002560| 20 73 75 6e 20 6f 6e 6c | 79 20 70 61 73 73 65 73 | sun onl|y passes|
|00002570| 20 61 20 73 74 72 75 63 | 74 20 73 6f 63 6b 61 64 | a struc|t sockad|
|00002580| 64 72 20 2a 20 73 69 6e | 63 65 20 33 2e 32 20 61 |dr * sin|ce 3.2 a|
|00002590| 74 20 6c 65 61 73 74 2e | 20 54 68 69 73 20 69 73 |t least.| This is|
|000025a0| 0a 20 2a 20 72 61 74 68 | 65 72 20 75 70 73 65 74 |. * rath|er upset|
|000025b0| 74 69 6e 67 21 20 41 6c | 73 6f 2c 20 73 75 6e 20 |ting! Al|so, sun |
|000025c0| 64 6f 65 73 6e 27 74 20 | 70 61 73 73 20 74 68 65 |doesn't |pass the|
|000025d0| 20 53 49 4f 43 44 53 54 | 41 44 44 52 20 69 6f 63 | SIOCDST|ADDR ioc|
|000025e0| 74 6c 20 74 68 72 6f 75 | 67 68 0a 20 2a 20 73 6f |tl throu|gh. * so|
|000025f0| 20 77 65 20 63 61 6e 27 | 74 20 64 65 74 65 63 74 | we can'|t detect|
|00002600| 20 74 68 69 73 20 62 65 | 69 6e 67 20 73 65 74 20 | this be|ing set |
|00002610| 64 69 72 65 63 74 6c 79 | 2e 20 54 68 69 73 20 69 |directly|. This i|
|00002620| 73 20 74 68 65 20 72 65 | 61 73 6f 6e 20 66 6f 72 |s the re|ason for|
|00002630| 0a 20 2a 20 74 75 6e 63 | 68 65 63 6b 72 65 61 64 |. * tunc|heckread|
|00002640| 79 2e 0a 20 2a 20 55 6e | 64 65 72 20 34 2e 33 20 |y.. * Un|der 4.3 |
|00002650| 61 6e 64 20 53 75 6e 4f | 73 20 34 2e 30 20 77 65 |and SunO|s 4.0 we|
|00002660| 20 6e 6f 77 20 67 65 74 | 20 74 68 65 20 53 49 4f | now get| the SIO|
|00002670| 43 53 49 46 44 53 54 41 | 44 44 52 20 69 6f 63 74 |CSIFDSTA|DDR ioct|
|00002680| 6c 2c 20 61 6e 64 20 77 | 65 20 67 65 74 20 61 0a |l, and w|e get a.|
|00002690| 20 2a 20 73 74 72 75 63 | 74 20 69 6e 5f 69 66 61 | * struc|t in_ifa|
|000026a0| 64 64 72 20 2a 20 66 6f | 72 20 64 61 74 61 2e 20 |ddr * fo|r data. |
|000026b0| 28 74 74 65 29 0a 20 2a | 2f 0a 0a 23 69 66 20 21 |(tte). *|/..#if !|
|000026c0| 64 65 66 69 6e 65 64 28 | 42 53 44 34 5f 33 29 20 |defined(|BSD4_3) |
|000026d0| 26 26 20 64 65 66 69 6e | 65 64 28 73 75 6e 29 0a |&& defin|ed(sun).|
|000026e0| 0a 2f 2a 0a 20 2a 20 77 | 6f 72 6b 61 72 6f 75 6e |./*. * w|orkaroun|
|000026f0| 64 20 66 6f 72 20 6e 6f | 74 20 62 65 69 6e 67 20 |d for no|t being |
|00002700| 61 62 6c 65 20 74 6f 20 | 64 65 74 65 63 74 20 44 |able to |detect D|
|00002710| 53 54 41 44 44 52 20 62 | 65 69 6e 67 20 73 65 74 |STADDR b|eing set|
|00002720| 2e 0a 20 2a 2f 0a 0a 74 | 75 6e 63 68 65 63 6b 72 |.. */..t|uncheckr|
|00002730| 65 61 64 79 20 28 69 66 | 70 29 0a 73 74 72 75 63 |eady (if|p).struc|
|00002740| 74 20 69 66 6e 65 74 20 | 2a 69 66 70 3b 0a 7b 0a |t ifnet |*ifp;.{.|
|00002750| 09 73 74 72 75 63 74 20 | 74 75 6e 63 74 6c 20 2a |.struct |tunctl *|
|00002760| 74 70 20 3d 20 26 74 75 | 6e 63 74 6c 5b 69 66 70 |tp = &tu|nctl[ifp|
|00002770| 2d 3e 69 66 5f 75 6e 69 | 74 5d 3b 0a 09 73 74 72 |->if_uni|t];..str|
|00002780| 75 63 74 20 73 6f 63 6b | 61 64 64 72 5f 69 6e 20 |uct sock|addr_in |
|00002790| 2a 73 69 6e 3b 0a 0a 09 | 73 69 6e 20 3d 20 28 73 |*sin;...|sin = (s|
|000027a0| 74 72 75 63 74 20 73 6f | 63 6b 61 64 64 72 5f 69 |truct so|ckaddr_i|
|000027b0| 6e 20 2a 29 20 26 69 66 | 70 2d 3e 69 66 5f 64 73 |n *) &if|p->if_ds|
|000027c0| 74 61 64 64 72 3b 0a 09 | 69 66 20 28 73 69 6e 2d |taddr;..|if (sin-|
|000027d0| 3e 73 69 6e 5f 61 64 64 | 72 2e 73 5f 61 64 64 72 |>sin_add|r.s_addr|
|000027e0| 20 3d 3d 20 30 29 0a 09 | 09 72 65 74 75 72 6e 20 | == 0)..|.return |
|000027f0| 30 3b 0a 09 74 70 20 2d | 3e 20 74 75 6e 5f 66 6c |0;..tp -|> tun_fl|
|00002800| 61 67 73 20 7c 3d 20 54 | 55 4e 5f 44 53 54 41 44 |ags |= T|UN_DSTAD|
|00002810| 44 52 3b 0a 09 72 65 74 | 75 72 6e 20 31 3b 0a 7d |DR;..ret|urn 1;.}|
|00002820| 0a 23 65 6c 73 65 0a 23 | 64 65 66 69 6e 65 20 74 |.#else.#|define t|
|00002830| 75 6e 63 68 65 63 6b 72 | 65 61 64 79 28 64 75 6d |uncheckr|eady(dum|
|00002840| 6d 79 29 20 31 0a 23 65 | 6e 64 69 66 20 2f 2a 20 |my) 1.#e|ndif /* |
|00002850| 21 64 65 66 69 6e 65 64 | 28 42 53 44 34 5f 33 29 |!defined|(BSD4_3)|
|00002860| 20 26 26 20 64 65 66 69 | 6e 65 64 28 73 75 6e 29 | && defi|ned(sun)|
|00002870| 20 2a 2f 0a 0a 69 6e 74 | 0a 74 75 6e 69 6f 63 74 | */..int|.tunioct|
|00002880| 6c 20 28 69 66 70 2c 20 | 63 6d 64 2c 20 64 61 74 |l (ifp, |cmd, dat|
|00002890| 61 29 0a 72 65 67 69 73 | 74 65 72 20 73 74 72 75 |a).regis|ter stru|
|000028a0| 63 74 20 69 66 6e 65 74 | 20 2a 69 66 70 3b 0a 69 |ct ifnet| *ifp;.i|
|000028b0| 6e 74 09 09 63 6d 64 3b | 0a 63 61 64 64 72 5f 74 |nt..cmd;|.caddr_t|
|000028c0| 09 09 64 61 74 61 3b 0a | 7b 0a 23 69 66 6e 64 65 |..data;.|{.#ifnde|
|000028d0| 66 20 42 53 44 34 5f 33 | 0a 23 69 66 64 65 66 20 |f BSD4_3|.#ifdef |
|000028e0| 73 75 6e 09 0a 09 73 74 | 72 75 63 74 20 73 6f 63 |sun...st|ruct soc|
|000028f0| 6b 61 64 64 72 5f 69 6e | 20 2a 73 69 6e 20 3d 20 |kaddr_in| *sin = |
|00002900| 28 73 74 72 75 63 74 20 | 73 6f 63 6b 61 64 64 72 |(struct |sockaddr|
|00002910| 5f 69 6e 20 2a 29 20 64 | 61 74 61 3b 0a 23 65 6c |_in *) d|ata;.#el|
|00002920| 73 65 0a 09 73 74 72 75 | 63 74 20 73 6f 63 6b 61 |se..stru|ct socka|
|00002930| 64 64 72 5f 69 6e 20 2a | 73 69 6e 3b 0a 09 73 74 |ddr_in *|sin;..st|
|00002940| 72 75 63 74 20 69 66 72 | 65 71 09 2a 69 66 72 20 |ruct ifr|eq.*ifr |
|00002950| 3d 20 28 73 74 72 75 63 | 74 20 69 66 72 65 71 20 |= (struc|t ifreq |
|00002960| 2a 29 20 64 61 74 61 3b | 0a 23 65 6e 64 69 66 0a |*) data;|.#endif.|
|00002970| 23 65 6e 64 69 66 20 2f | 2a 20 42 53 44 34 5f 33 |#endif /|* BSD4_3|
|00002980| 20 2a 2f 0a 0a 09 69 6e | 74 09 09 73 20 3d 20 73 | */...in|t..s = s|
|00002990| 70 6c 69 6d 70 20 28 29 | 2c 20 65 72 72 6f 72 20 |plimp ()|, error |
|000029a0| 3d 20 30 3b 0a 09 73 74 | 72 75 63 74 20 74 75 6e |= 0;..st|ruct tun|
|000029b0| 63 74 6c 20 20 2a 74 70 | 20 3d 20 26 74 75 6e 63 |ctl  *tp| = &tunc|
|000029c0| 74 6c 5b 69 66 70 2d 3e | 69 66 5f 75 6e 69 74 5d |tl[ifp->|if_unit]|
|000029d0| 3b 0a 0a 09 73 77 69 74 | 63 68 20 28 63 6d 64 29 |;...swit|ch (cmd)|
|000029e0| 0a 09 7b 0a 09 20 20 20 | 20 63 61 73 65 20 53 49 |..{..   | case SI|
|000029f0| 4f 43 53 49 46 41 44 44 | 52 3a 0a 23 69 66 6e 64 |OCSIFADD|R:.#ifnd|
|00002a00| 65 66 20 42 53 44 34 5f | 33 0a 09 09 69 66 20 28 |ef BSD4_|3...if (|
|00002a10| 69 66 70 2d 3e 69 66 5f | 66 6c 61 67 73 20 26 20 |ifp->if_|flags & |
|00002a20| 49 46 46 5f 52 55 4e 4e | 49 4e 47 29 0a 09 09 09 |IFF_RUNN|ING)....|
|00002a30| 69 66 5f 72 74 69 6e 69 | 74 20 28 69 66 70 2c 20 |if_rtini|t (ifp, |
|00002a40| 2d 31 29 3b 09 2f 2a 20 | 64 65 6c 65 74 65 20 70 |-1);./* |delete p|
|00002a50| 72 65 76 69 6f 75 73 20 | 72 6f 75 74 65 20 2a 2f |revious |route */|
|00002a60| 0a 23 69 66 6e 64 65 66 | 20 73 75 6e 0a 09 09 73 |.#ifndef| sun...s|
|00002a70| 69 6e 20 3d 20 28 73 74 | 72 75 63 74 20 73 6f 63 |in = (st|ruct soc|
|00002a80| 6b 61 64 64 72 5f 69 6e | 20 2a 29 26 69 66 72 20 |kaddr_in| *)&ifr |
|00002a90| 2d 3e 20 69 66 72 5f 61 | 64 64 72 3b 0a 23 65 6e |-> ifr_a|ddr;.#en|
|00002aa0| 64 69 66 0a 09 09 69 66 | 70 2d 3e 69 66 5f 61 64 |dif...if|p->if_ad|
|00002ab0| 64 72 20 3d 20 2a 28 28 | 73 74 72 75 63 74 20 73 |dr = *((|struct s|
|00002ac0| 6f 63 6b 61 64 64 72 20 | 2a 29 20 73 69 6e 29 3b |ockaddr |*) sin);|
|00002ad0| 0a 09 09 69 66 70 2d 3e | 69 66 5f 6e 65 74 20 3d |...ifp->|if_net =|
|00002ae0| 20 69 6e 5f 6e 65 74 6f | 66 20 28 73 69 6e 2d 3e | in_neto|f (sin->|
|00002af0| 73 69 6e 5f 61 64 64 72 | 29 3b 0a 09 09 69 66 70 |sin_addr|);...ifp|
|00002b00| 2d 3e 69 66 5f 68 6f 73 | 74 5b 30 5d 20 3d 20 69 |->if_hos|t[0] = i|
|00002b10| 6e 5f 6c 6e 61 6f 66 20 | 28 73 69 6e 2d 3e 73 69 |n_lnaof |(sin->si|
|00002b20| 6e 5f 61 64 64 72 29 3b | 0a 23 65 6e 64 69 66 0a |n_addr);|.#endif.|
|00002b30| 09 09 74 75 6e 69 6e 69 | 74 20 28 69 66 70 2d 3e |..tunini|t (ifp->|
|00002b40| 69 66 5f 75 6e 69 74 29 | 3b 0a 09 09 62 72 65 61 |if_unit)|;...brea|
|00002b50| 6b 3b 0a 09 20 20 20 20 | 63 61 73 65 20 53 49 4f |k;..    |case SIO|
|00002b60| 43 53 49 46 44 53 54 41 | 44 44 52 3a 0a 09 09 74 |CSIFDSTA|DDR:...t|
|00002b70| 70 2d 3e 74 75 6e 5f 66 | 6c 61 67 73 20 7c 3d 20 |p->tun_f|lags |= |
|00002b80| 54 55 4e 5f 44 53 54 41 | 44 44 52 3b 0a 23 69 66 |TUN_DSTA|DDR;.#if|
|00002b90| 6e 64 65 66 20 42 53 44 | 34 5f 33 0a 23 69 66 6e |ndef BSD|4_3.#ifn|
|00002ba0| 64 65 66 20 73 75 6e 0a | 09 09 73 69 6e 20 3d 20 |def sun.|..sin = |
|00002bb0| 28 73 74 72 75 63 74 20 | 73 6f 63 6b 61 64 64 72 |(struct |sockaddr|
|00002bc0| 5f 69 6e 20 2a 29 26 69 | 66 72 20 2d 3e 20 69 66 |_in *)&i|fr -> if|
|00002bd0| 72 5f 61 64 64 72 3b 0a | 23 65 6e 64 69 66 0a 09 |r_addr;.|#endif..|
|00002be0| 09 69 66 70 2d 3e 69 66 | 5f 64 73 74 61 64 64 72 |.ifp->if|_dstaddr|
|00002bf0| 20 3d 20 2a 28 28 73 74 | 72 75 63 74 20 73 6f 63 | = *((st|ruct soc|
|00002c00| 6b 61 64 64 72 20 2a 29 | 73 69 6e 29 3b 0a 23 65 |kaddr *)|sin);.#e|
|00002c10| 6e 64 69 66 20 42 53 44 | 34 5f 33 0a 09 09 54 55 |ndif BSD|4_3...TU|
|00002c20| 4e 44 45 42 55 47 20 28 | 22 25 73 25 64 3a 20 64 |NDEBUG (|"%s%d: d|
|00002c30| 65 73 74 69 6e 61 74 69 | 6f 6e 20 61 64 64 72 65 |estinati|on addre|
|00002c40| 73 20 73 65 74 5c 6e 22 | 2c 20 69 66 70 2d 3e 69 |s set\n"|, ifp->i|
|00002c50| 66 5f 6e 61 6d 65 2c 0a | 09 09 09 69 66 70 20 2d |f_name,.|...ifp -|
|00002c60| 3e 20 69 66 5f 75 6e 69 | 74 29 3b 0a 09 09 62 72 |> if_uni|t);...br|
|00002c70| 65 61 6b 3b 0a 09 20 20 | 20 20 64 65 66 61 75 6c |eak;..  |  defaul|
|00002c80| 74 3a 0a 09 09 65 72 72 | 6f 72 20 3d 20 45 49 4e |t:...err|or = EIN|
|00002c90| 56 41 4c 3b 0a 09 7d 0a | 09 73 70 6c 78 20 28 73 |VAL;..}.|.splx (s|
|00002ca0| 29 3b 0a 09 72 65 74 75 | 72 6e 20 28 65 72 72 6f |);..retu|rn (erro|
|00002cb0| 72 29 3b 0a 7d 0a 0a 2f | 2a 0a 20 2a 20 74 75 6e |r);.}../|*. * tun|
|00002cc0| 6f 75 74 70 75 74 20 2d | 20 71 75 65 75 65 20 70 |output -| queue p|
|00002cd0| 61 63 6b 65 74 73 20 66 | 72 6f 6d 20 68 69 67 68 |ackets f|rom high|
|00002ce0| 65 72 20 6c 65 76 65 6c | 20 72 65 61 64 79 20 74 |er level| ready t|
|00002cf0| 6f 20 70 75 74 20 6f 75 | 74 2e 0a 20 2a 2f 0a 74 |o put ou|t.. */.t|
|00002d00| 75 6e 6f 75 74 70 75 74 | 20 28 69 66 70 2c 20 6d |unoutput| (ifp, m|
|00002d10| 30 2c 20 64 73 74 29 0a | 73 74 72 75 63 74 20 69 |0, dst).|struct i|
|00002d20| 66 6e 65 74 20 20 20 2a | 69 66 70 3b 0a 73 74 72 |fnet   *|ifp;.str|
|00002d30| 75 63 74 20 6d 62 75 66 | 20 20 20 20 2a 6d 30 3b |uct mbuf|    *m0;|
|00002d40| 0a 73 74 72 75 63 74 20 | 73 6f 63 6b 61 64 64 72 |.struct |sockaddr|
|00002d50| 20 2a 64 73 74 3b 0a 7b | 0a 09 73 74 72 75 63 74 | *dst;.{|..struct|
|00002d60| 20 74 75 6e 63 74 6c 20 | 20 2a 74 70 3b 0a 09 73 | tunctl | *tp;..s|
|00002d70| 74 72 75 63 74 20 70 72 | 6f 63 09 2a 70 3b 0a 09 |truct pr|oc.*p;..|
|00002d80| 69 6e 74 09 09 73 3b 0a | 0a 09 54 55 4e 44 45 42 |int..s;.|..TUNDEB|
|00002d90| 55 47 20 28 22 25 73 25 | 64 3a 20 74 75 6e 6f 75 |UG ("%s%|d: tunou|
|00002da0| 74 70 75 74 5c 6e 22 2c | 20 69 66 70 2d 3e 69 66 |tput\n",| ifp->if|
|00002db0| 5f 6e 61 6d 65 2c 20 69 | 66 70 2d 3e 69 66 5f 75 |_name, i|fp->if_u|
|00002dc0| 6e 69 74 29 3b 0a 09 74 | 70 20 3d 20 26 74 75 6e |nit);..t|p = &tun|
|00002dd0| 63 74 6c 5b 69 66 70 2d | 3e 69 66 5f 75 6e 69 74 |ctl[ifp-|>if_unit|
|00002de0| 5d 3b 0a 09 69 66 20 28 | 28 74 70 2d 3e 74 75 6e |];..if (|(tp->tun|
|00002df0| 5f 66 6c 61 67 73 20 26 | 20 54 55 4e 5f 52 45 41 |_flags &| TUN_REA|
|00002e00| 44 59 29 20 21 3d 20 54 | 55 4e 5f 52 45 41 44 59 |DY) != T|UN_READY|
|00002e10| 29 20 7b 0a 09 09 69 66 | 28 74 75 6e 63 68 65 63 |) {...if|(tunchec|
|00002e20| 6b 72 65 61 64 79 28 69 | 66 70 29 20 3d 3d 20 30 |kready(i|fp) == 0|
|00002e30| 29 20 7b 0a 09 09 09 54 | 55 4e 44 45 42 55 47 20 |) {....T|UNDEBUG |
|00002e40| 28 22 25 73 25 64 3a 20 | 6e 6f 74 20 72 65 61 64 |("%s%d: |not read|
|00002e50| 79 20 30 25 6f 5c 6e 22 | 2c 20 69 66 70 2d 3e 69 |y 0%o\n"|, ifp->i|
|00002e60| 66 5f 6e 61 6d 65 2c 0a | 09 09 09 09 69 66 70 2d |f_name,.|....ifp-|
|00002e70| 3e 69 66 5f 75 6e 69 74 | 2c 20 74 70 2d 3e 74 75 |>if_unit|, tp->tu|
|00002e80| 6e 5f 66 6c 61 67 73 29 | 3b 0a 09 09 09 6d 5f 66 |n_flags)|;....m_f|
|00002e90| 72 65 65 6d 20 28 6d 30 | 29 3b 0a 09 09 09 72 65 |reem (m0|);....re|
|00002ea0| 74 75 72 6e 20 45 48 4f | 53 54 44 4f 57 4e 3b 0a |turn EHO|STDOWN;.|
|00002eb0| 09 09 7d 0a 09 7d 0a 0a | 09 73 77 69 74 63 68 20 |..}..}..|.switch |
|00002ec0| 28 64 73 74 2d 3e 73 61 | 5f 66 61 6d 69 6c 79 29 |(dst->sa|_family)|
|00002ed0| 20 7b 0a 23 69 66 64 65 | 66 20 49 4e 45 54 0a 09 | {.#ifde|f INET..|
|00002ee0| 20 20 20 20 63 61 73 65 | 20 41 46 5f 49 4e 45 54 |    case| AF_INET|
|00002ef0| 3a 0a 09 09 73 20 3d 20 | 73 70 6c 69 6d 70 20 28 |:...s = |splimp (|
|00002f00| 29 3b 0a 09 09 69 66 20 | 28 49 46 5f 51 46 55 4c |);...if |(IF_QFUL|
|00002f10| 4c 20 28 26 69 66 70 2d | 3e 69 66 5f 73 6e 64 29 |L (&ifp-|>if_snd)|
|00002f20| 29 0a 09 09 7b 0a 09 09 | 09 49 46 5f 44 52 4f 50 |)...{...|.IF_DROP|
|00002f30| 20 28 26 69 66 70 2d 3e | 69 66 5f 73 6e 64 29 3b | (&ifp->|if_snd);|
|00002f40| 0a 09 09 09 6d 5f 66 72 | 65 65 6d 20 28 6d 30 29 |....m_fr|eem (m0)|
|00002f50| 3b 0a 09 09 09 73 70 6c | 78 20 28 73 29 3b 0a 09 |;....spl|x (s);..|
|00002f60| 09 09 69 66 70 2d 3e 69 | 66 5f 63 6f 6c 6c 69 73 |..ifp->i|f_collis|
|00002f70| 69 6f 6e 73 2b 2b 3b 0a | 09 09 09 72 65 74 75 72 |ions++;.|...retur|
|00002f80| 6e 20 28 45 4e 4f 42 55 | 46 53 29 3b 0a 09 09 7d |n (ENOBU|FS);...}|
|00002f90| 0a 09 09 49 46 5f 45 4e | 51 55 45 55 45 20 28 26 |...IF_EN|QUEUE (&|
|00002fa0| 69 66 70 2d 3e 69 66 5f | 73 6e 64 2c 20 6d 30 29 |ifp->if_|snd, m0)|
|00002fb0| 3b 0a 09 09 73 70 6c 78 | 20 28 73 29 3b 0a 09 09 |;...splx| (s);...|
|00002fc0| 69 66 70 2d 3e 69 66 5f | 6f 70 61 63 6b 65 74 73 |ifp->if_|opackets|
|00002fd0| 2b 2b 3b 0a 09 09 62 72 | 65 61 6b 3b 0a 23 65 6e |++;...br|eak;.#en|
|00002fe0| 64 69 66 0a 09 20 20 20 | 20 64 65 66 61 75 6c 74 |dif..   | default|
|00002ff0| 3a 0a 09 09 6d 5f 66 72 | 65 65 6d 20 28 6d 30 29 |:...m_fr|eem (m0)|
|00003000| 3b 0a 09 09 72 65 74 75 | 72 6e 20 45 41 46 4e 4f |;...retu|rn EAFNO|
|00003010| 53 55 50 50 4f 52 54 3b | 0a 09 7d 0a 0a 09 69 66 |SUPPORT;|..}...if|
|00003020| 20 28 74 70 2d 3e 74 75 | 6e 5f 66 6c 61 67 73 20 | (tp->tu|n_flags |
|00003030| 26 20 54 55 4e 5f 52 57 | 41 49 54 29 20 7b 0a 09 |& TUN_RW|AIT) {..|
|00003040| 09 74 70 2d 3e 74 75 6e | 5f 66 6c 61 67 73 20 26 |.tp->tun|_flags &|
|00003050| 3d 20 7e 54 55 4e 5f 52 | 57 41 49 54 3b 0a 09 09 |= ~TUN_R|WAIT;...|
|00003060| 77 61 6b 65 75 70 20 28 | 28 63 61 64 64 72 5f 74 |wakeup (|(caddr_t|
|00003070| 29 20 74 70 29 3b 0a 09 | 7d 0a 09 69 66 20 28 74 |) tp);..|}..if (t|
|00003080| 70 2d 3e 74 75 6e 5f 66 | 6c 61 67 73 20 26 20 54 |p->tun_f|lags & T|
|00003090| 55 4e 5f 41 53 59 4e 43 | 20 26 26 20 74 70 20 2d |UN_ASYNC| && tp -|
|000030a0| 3e 20 74 75 6e 5f 70 67 | 72 70 20 21 3d 20 30 29 |> tun_pg|rp != 0)|
|000030b0| 20 7b 0a 09 09 69 66 20 | 28 74 70 2d 3e 74 75 6e | {...if |(tp->tun|
|000030c0| 5f 70 67 72 70 20 3e 20 | 30 29 0a 09 09 09 67 73 |_pgrp > |0)....gs|
|000030d0| 69 67 6e 61 6c 20 28 74 | 70 2d 3e 74 75 6e 5f 70 |ignal (t|p->tun_p|
|000030e0| 67 72 70 2c 20 53 49 47 | 49 4f 29 3b 0a 09 09 65 |grp, SIG|IO);...e|
|000030f0| 6c 73 65 20 69 66 20 28 | 28 70 20 3d 20 70 66 69 |lse if (|(p = pfi|
|00003100| 6e 64 20 28 2d 74 70 2d | 3e 74 75 6e 5f 70 67 72 |nd (-tp-|>tun_pgr|
|00003110| 70 29 29 20 21 3d 20 30 | 29 0a 09 09 09 70 73 69 |p)) != 0|)....psi|
|00003120| 67 6e 61 6c 20 28 70 2c | 20 53 49 47 49 4f 29 3b |gnal (p,| SIGIO);|
|00003130| 0a 09 7d 0a 09 69 66 20 | 28 74 70 2d 3e 74 75 6e |..}..if |(tp->tun|
|00003140| 5f 72 73 65 6c 29 20 7b | 0a 09 09 73 65 6c 77 61 |_rsel) {|...selwa|
|00003150| 6b 65 75 70 20 28 74 70 | 2d 3e 74 75 6e 5f 72 73 |keup (tp|->tun_rs|
|00003160| 65 6c 2c 20 74 70 2d 3e | 74 75 6e 5f 66 6c 61 67 |el, tp->|tun_flag|
|00003170| 73 20 26 20 54 55 4e 5f | 52 43 4f 4c 4c 29 3b 0a |s & TUN_|RCOLL);.|
|00003180| 09 09 74 70 2d 3e 74 75 | 6e 5f 66 6c 61 67 73 20 |..tp->tu|n_flags |
|00003190| 26 3d 20 7e 54 55 4e 5f | 52 43 4f 4c 4c 3b 0a 09 |&= ~TUN_|RCOLL;..|
|000031a0| 09 74 70 2d 3e 74 75 6e | 5f 72 73 65 6c 20 3d 20 |.tp->tun|_rsel = |
|000031b0| 28 73 74 72 75 63 74 20 | 70 72 6f 63 20 2a 29 20 |(struct |proc *) |
|000031c0| 30 3b 0a 09 7d 0a 09 72 | 65 74 75 72 6e 20 30 3b |0;..}..r|eturn 0;|
|000031d0| 0a 7d 0a 0a 2f 2a 0a 20 | 2a 20 74 68 65 20 63 64 |.}../*. |* the cd|
|000031e0| 65 76 73 77 20 69 6e 74 | 65 72 66 61 63 65 20 69 |evsw int|erface i|
|000031f0| 73 20 6e 6f 77 20 70 72 | 65 74 74 79 20 6d 69 6e |s now pr|etty min|
|00003200| 69 6d 61 6c 2e 0a 20 2a | 2f 0a 0a 74 75 6e 63 69 |imal.. *|/..tunci|
|00003210| 6f 63 74 6c 20 28 64 65 | 76 2c 20 63 6d 64 2c 20 |octl (de|v, cmd, |
|00003220| 64 61 74 61 2c 20 66 6c | 61 67 29 0a 64 65 76 5f |data, fl|ag).dev_|
|00003230| 74 09 09 64 65 76 3b 0a | 63 61 64 64 72 5f 74 09 |t..dev;.|caddr_t.|
|00003240| 09 64 61 74 61 3b 0a 7b | 0a 09 69 6e 74 09 75 6e |.data;.{|..int.un|
|00003250| 69 74 20 3d 20 6d 69 6e | 6f 72 28 64 65 76 29 3b |it = min|or(dev);|
|00003260| 0a 09 73 74 72 75 63 74 | 20 74 75 6e 63 74 6c 20 |..struct| tunctl |
|00003270| 2a 74 70 20 3d 20 26 74 | 75 6e 63 74 6c 5b 75 6e |*tp = &t|unctl[un|
|00003280| 69 74 5d 3b 0a 09 69 6e | 74 09 73 3b 0a 0a 09 73 |it];..in|t.s;...s|
|00003290| 77 69 74 63 68 20 28 63 | 6d 64 29 20 7b 0a 09 20 |witch (c|md) {.. |
|000032a0| 20 20 20 63 61 73 65 20 | 54 55 4e 53 44 45 42 55 |   case |TUNSDEBU|
|000032b0| 47 3a 0a 09 09 74 75 6e | 64 65 62 75 67 20 3d 20 |G:...tun|debug = |
|000032c0| 2a 28 69 6e 74 20 2a 29 | 64 61 74 61 3b 0a 09 09 |*(int *)|data;...|
|000032d0| 62 72 65 61 6b 3b 0a 0a | 09 20 20 20 20 63 61 73 |break;..|.    cas|
|000032e0| 65 20 54 55 4e 47 44 45 | 42 55 47 3a 0a 09 09 2a |e TUNGDE|BUG:...*|
|000032f0| 28 69 6e 74 20 2a 29 64 | 61 74 61 20 3d 20 74 75 |(int *)d|ata = tu|
|00003300| 6e 64 65 62 75 67 3b 0a | 09 09 62 72 65 61 6b 3b |ndebug;.|..break;|
|00003310| 0a 0a 09 20 20 20 20 63 | 61 73 65 20 46 49 4f 4e |...    c|ase FION|
|00003320| 42 49 4f 3a 0a 09 09 69 | 66 20 28 2a 28 69 6e 74 |BIO:...i|f (*(int|
|00003330| 20 2a 29 64 61 74 61 29 | 0a 09 09 09 74 70 2d 3e | *)data)|....tp->|
|00003340| 74 75 6e 5f 66 6c 61 67 | 73 20 7c 3d 20 54 55 4e |tun_flag|s |= TUN|
|00003350| 5f 4e 42 49 4f 3b 0a 09 | 09 65 6c 73 65 0a 09 09 |_NBIO;..|.else...|
|00003360| 09 74 70 2d 3e 74 75 6e | 5f 66 6c 61 67 73 20 26 |.tp->tun|_flags &|
|00003370| 3d 20 7e 54 55 4e 5f 4e | 42 49 4f 3b 0a 09 09 62 |= ~TUN_N|BIO;...b|
|00003380| 72 65 61 6b 3b 0a 0a 09 | 20 20 20 20 63 61 73 65 |reak;...|    case|
|00003390| 20 46 49 4f 41 53 59 4e | 43 3a 0a 09 09 69 66 20 | FIOASYN|C:...if |
|000033a0| 28 2a 28 69 6e 74 20 2a | 29 64 61 74 61 29 0a 09 |(*(int *|)data)..|
|000033b0| 09 09 74 70 2d 3e 74 75 | 6e 5f 66 6c 61 67 73 20 |..tp->tu|n_flags |
|000033c0| 7c 3d 20 54 55 4e 5f 41 | 53 59 4e 43 3b 0a 09 09 ||= TUN_A|SYNC;...|
|000033d0| 65 6c 73 65 0a 09 09 09 | 74 70 2d 3e 74 75 6e 5f |else....|tp->tun_|
|000033e0| 66 6c 61 67 73 20 26 3d | 20 7e 54 55 4e 5f 41 53 |flags &=| ~TUN_AS|
|000033f0| 59 4e 43 3b 0a 09 09 62 | 72 65 61 6b 3b 0a 0a 09 |YNC;...b|reak;...|
|00003400| 20 20 20 20 63 61 73 65 | 20 46 49 4f 4e 52 45 41 |    case| FIONREA|
|00003410| 44 3a 0a 09 09 73 20 3d | 20 73 70 6c 69 6d 70 20 |D:...s =| splimp |
|00003420| 28 29 3b 0a 09 09 69 66 | 20 28 74 70 2d 3e 74 75 |();...if| (tp->tu|
|00003430| 6e 5f 69 66 2e 69 66 5f | 73 6e 64 2e 69 66 71 5f |n_if.if_|snd.ifq_|
|00003440| 68 65 61 64 29 0a 09 09 | 09 2a 28 69 6e 74 20 2a |head)...|.*(int *|
|00003450| 29 64 61 74 61 20 3d 20 | 74 70 2d 3e 74 75 6e 5f |)data = |tp->tun_|
|00003460| 69 66 2e 69 66 5f 73 6e | 64 2e 69 66 71 5f 68 65 |if.if_sn|d.ifq_he|
|00003470| 61 64 2d 3e 6d 5f 6c 65 | 6e 3b 0a 09 09 65 6c 73 |ad->m_le|n;...els|
|00003480| 65 09 2a 28 69 6e 74 20 | 2a 29 64 61 74 61 20 3d |e.*(int |*)data =|
|00003490| 20 30 3b 0a 09 09 73 70 | 6c 78 20 28 73 29 3b 0a | 0;...sp|lx (s);.|
|000034a0| 09 09 62 72 65 61 6b 3b | 0a 0a 09 20 20 20 20 63 |..break;|...    c|
|000034b0| 61 73 65 20 54 49 4f 43 | 53 50 47 52 50 3a 0a 09 |ase TIOC|SPGRP:..|
|000034c0| 09 74 70 2d 3e 74 75 6e | 5f 70 67 72 70 20 3d 20 |.tp->tun|_pgrp = |
|000034d0| 2a 28 69 6e 74 20 2a 29 | 64 61 74 61 3b 0a 09 09 |*(int *)|data;...|
|000034e0| 62 72 65 61 6b 3b 0a 0a | 09 20 20 20 20 63 61 73 |break;..|.    cas|
|000034f0| 65 20 54 49 4f 43 47 50 | 47 52 50 3a 0a 09 09 2a |e TIOCGP|GRP:...*|
|00003500| 28 69 6e 74 20 2a 29 64 | 61 74 61 20 3d 20 74 70 |(int *)d|ata = tp|
|00003510| 2d 3e 74 75 6e 5f 70 67 | 72 70 3b 0a 09 09 62 72 |->tun_pg|rp;...br|
|00003520| 65 61 6b 3b 0a 0a 09 20 | 20 20 20 64 65 66 61 75 |eak;... |   defau|
|00003530| 6c 74 3a 0a 09 09 72 65 | 74 75 72 6e 20 28 45 4e |lt:...re|turn (EN|
|00003540| 4f 54 54 59 29 3b 0a 09 | 7d 0a 09 72 65 74 75 72 |OTTY);..|}..retur|
|00003550| 6e 20 28 30 29 3b 0a 7d | 0a 0a 2f 2a 0a 20 2a 20 |n (0);.}|../*. * |
|00003560| 54 68 65 20 63 64 65 76 | 73 77 20 72 65 61 64 20 |The cdev|sw read |
|00003570| 69 6e 74 65 72 66 61 63 | 65 20 2d 20 72 65 61 64 |interfac|e - read|
|00003580| 73 20 61 20 70 61 63 6b | 65 74 20 61 74 20 61 20 |s a pack|et at a |
|00003590| 74 69 6d 65 2c 20 6f 72 | 20 61 74 20 6c 65 61 73 |time, or| at leas|
|000035a0| 74 20 61 73 20 6d 75 63 | 68 0a 20 2a 20 6f 66 20 |t as muc|h. * of |
|000035b0| 61 20 70 61 63 6b 65 74 | 20 61 73 20 63 61 6e 20 |a packet| as can |
|000035c0| 62 65 20 72 65 61 64 2e | 0a 20 2a 2f 0a 74 75 6e |be read.|. */.tun|
|000035d0| 72 65 61 64 20 28 64 65 | 76 2c 20 75 69 6f 29 0a |read (de|v, uio).|
|000035e0| 64 65 76 5f 74 09 09 64 | 65 76 3b 0a 73 74 72 75 |dev_t..d|ev;.stru|
|000035f0| 63 74 20 75 69 6f 20 20 | 20 20 20 2a 75 69 6f 3b |ct uio  |   *uio;|
|00003600| 0a 7b 0a 09 72 65 67 69 | 73 74 65 72 20 73 74 72 |.{..regi|ster str|
|00003610| 75 63 74 20 69 66 6e 65 | 74 20 2a 69 66 70 3b 0a |uct ifne|t *ifp;.|
|00003620| 09 72 65 67 69 73 74 65 | 72 20 73 74 72 75 63 74 |.registe|r struct|
|00003630| 20 6d 62 75 66 20 2a 6d | 2c 20 2a 6d 30 3b 0a 09 | mbuf *m|, *m0;..|
|00003640| 69 6e 74 09 09 75 6e 69 | 74 20 3d 20 6d 69 6e 6f |int..uni|t = mino|
|00003650| 72 20 28 64 65 76 29 3b | 0a 09 69 6e 74 09 09 6c |r (dev);|..int..l|
|00003660| 65 6e 2c 20 73 3b 0a 09 | 69 6e 74 09 09 65 72 72 |en, s;..|int..err|
|00003670| 6f 72 20 3d 20 30 3b 0a | 09 73 74 72 75 63 74 20 |or = 0;.|.struct |
|00003680| 74 75 6e 63 74 6c 20 20 | 2a 74 70 3b 0a 0a 09 74 |tunctl  |*tp;...t|
|00003690| 70 20 3d 20 26 74 75 6e | 63 74 6c 5b 75 6e 69 74 |p = &tun|ctl[unit|
|000036a0| 5d 3b 0a 09 69 66 70 20 | 3d 20 26 74 70 2d 3e 74 |];..ifp |= &tp->t|
|000036b0| 75 6e 5f 69 66 3b 0a 09 | 54 55 4e 44 45 42 55 47 |un_if;..|TUNDEBUG|
|000036c0| 20 28 22 25 73 25 64 3a | 20 72 65 61 64 5c 6e 22 | ("%s%d:| read\n"|
|000036d0| 2c 20 69 66 70 2d 3e 69 | 66 5f 6e 61 6d 65 2c 20 |, ifp->i|f_name, |
|000036e0| 69 66 70 2d 3e 69 66 5f | 75 6e 69 74 29 3b 0a 09 |ifp->if_|unit);..|
|000036f0| 69 66 20 28 28 74 70 2d | 3e 74 75 6e 5f 66 6c 61 |if ((tp-|>tun_fla|
|00003700| 67 73 20 26 20 54 55 4e | 5f 52 45 41 44 59 29 20 |gs & TUN|_READY) |
|00003710| 21 3d 20 54 55 4e 5f 52 | 45 41 44 59 29 20 7b 0a |!= TUN_R|EADY) {.|
|00003720| 09 09 69 66 28 74 75 6e | 63 68 65 63 6b 72 65 61 |..if(tun|checkrea|
|00003730| 64 79 28 69 66 70 29 20 | 3d 3d 20 30 29 20 7b 0a |dy(ifp) |== 0) {.|
|00003740| 09 09 09 54 55 4e 44 45 | 42 55 47 20 28 22 25 73 |...TUNDE|BUG ("%s|
|00003750| 25 64 3a 20 6e 6f 74 20 | 72 65 61 64 79 20 30 25 |%d: not |ready 0%|
|00003760| 6f 5c 6e 22 2c 20 69 66 | 70 2d 3e 69 66 5f 6e 61 |o\n", if|p->if_na|
|00003770| 6d 65 2c 0a 09 09 09 09 | 69 66 70 2d 3e 69 66 5f |me,.....|ifp->if_|
|00003780| 75 6e 69 74 2c 20 74 70 | 2d 3e 74 75 6e 5f 66 6c |unit, tp|->tun_fl|
|00003790| 61 67 73 29 3b 0a 09 09 | 09 72 65 74 75 72 6e 20 |ags);...|.return |
|000037a0| 45 48 4f 53 54 44 4f 57 | 4e 3b 0a 09 09 7d 0a 09 |EHOSTDOW|N;...}..|
|000037b0| 7d 0a 0a 09 74 70 2d 3e | 74 75 6e 5f 66 6c 61 67 |}...tp->|tun_flag|
|000037c0| 73 20 26 3d 20 7e 54 55 | 4e 5f 52 57 41 49 54 3b |s &= ~TU|N_RWAIT;|
|000037d0| 0a 0a 09 73 20 3d 20 73 | 70 6c 69 6d 70 20 28 29 |...s = s|plimp ()|
|000037e0| 3b 0a 09 64 6f 20 7b 0a | 09 09 49 46 5f 44 45 51 |;..do {.|..IF_DEQ|
|000037f0| 55 45 55 45 20 28 26 69 | 66 70 2d 3e 69 66 5f 73 |UEUE (&i|fp->if_s|
|00003800| 6e 64 2c 20 6d 30 29 3b | 0a 09 09 69 66 20 28 6d |nd, m0);|...if (m|
|00003810| 30 20 3d 3d 20 30 29 20 | 7b 0a 09 09 09 69 66 20 |0 == 0) |{....if |
|00003820| 28 74 70 20 2d 3e 20 74 | 75 6e 5f 66 6c 61 67 73 |(tp -> t|un_flags|
|00003830| 20 26 20 54 55 4e 5f 4e | 42 49 4f 29 20 7b 0a 09 | & TUN_N|BIO) {..|
|00003840| 09 09 09 73 70 6c 78 20 | 28 73 29 3b 0a 09 09 09 |...splx |(s);....|
|00003850| 09 72 65 74 75 72 6e 20 | 45 57 4f 55 4c 44 42 4c |.return |EWOULDBL|
|00003860| 4f 43 4b 3b 0a 09 09 09 | 7d 0a 09 09 09 74 70 2d |OCK;....|}....tp-|
|00003870| 3e 74 75 6e 5f 66 6c 61 | 67 73 20 7c 3d 20 54 55 |>tun_fla|gs |= TU|
|00003880| 4e 5f 52 57 41 49 54 3b | 0a 09 09 09 73 6c 65 65 |N_RWAIT;|....slee|
|00003890| 70 20 28 28 63 61 64 64 | 72 5f 74 29 20 74 70 2c |p ((cadd|r_t) tp,|
|000038a0| 20 50 5a 45 52 4f 20 2b | 20 31 29 3b 0a 09 09 7d | PZERO +| 1);...}|
|000038b0| 0a 09 7d 20 77 68 69 6c | 65 20 28 6d 30 20 3d 3d |..} whil|e (m0 ==|
|000038c0| 20 30 29 3b 0a 09 73 70 | 6c 78 20 28 73 29 3b 0a | 0);..sp|lx (s);.|
|000038d0| 0a 09 77 68 69 6c 65 20 | 28 6d 30 20 26 26 20 75 |..while |(m0 && u|
|000038e0| 69 6f 2d 3e 75 69 6f 5f | 72 65 73 69 64 20 3e 20 |io->uio_|resid > |
|000038f0| 30 20 26 26 20 65 72 72 | 6f 72 20 3d 3d 20 30 29 |0 && err|or == 0)|
|00003900| 20 7b 0a 09 09 6c 65 6e | 20 3d 20 4d 49 4e 20 28 | {...len| = MIN (|
|00003910| 75 69 6f 2d 3e 75 69 6f | 5f 72 65 73 69 64 2c 20 |uio->uio|_resid, |
|00003920| 6d 30 2d 3e 6d 5f 6c 65 | 6e 29 3b 0a 09 09 69 66 |m0->m_le|n);...if|
|00003930| 20 28 6c 65 6e 20 3d 3d | 20 30 29 0a 09 09 09 62 | (len ==| 0)....b|
|00003940| 72 65 61 6b 3b 0a 09 09 | 65 72 72 6f 72 20 3d 20 |reak;...|error = |
|00003950| 75 69 6f 6d 6f 76 65 20 | 28 6d 74 6f 64 20 28 6d |uiomove |(mtod (m|
|00003960| 30 2c 20 63 61 64 64 72 | 5f 74 29 2c 20 6c 65 6e |0, caddr|_t), len|
|00003970| 2c 0a 09 09 09 09 20 55 | 49 4f 5f 52 45 41 44 2c |,..... U|IO_READ,|
|00003980| 20 75 69 6f 29 3b 0a 09 | 09 4d 46 52 45 45 20 28 | uio);..|.MFREE (|
|00003990| 6d 30 2c 20 6d 29 3b 0a | 09 09 6d 30 20 3d 20 6d |m0, m);.|..m0 = m|
|000039a0| 3b 0a 09 7d 0a 0a 09 69 | 66 20 28 6d 30 20 21 3d |;..}...i|f (m0 !=|
|000039b0| 20 30 29 20 7b 0a 09 09 | 54 55 4e 44 45 42 55 47 | 0) {...|TUNDEBUG|
|000039c0| 20 28 22 44 72 6f 70 70 | 69 6e 67 20 6d 62 75 66 | ("Dropp|ing mbuf|
|000039d0| 5c 6e 22 29 3b 0a 09 09 | 6d 5f 66 72 65 65 6d 20 |\n");...|m_freem |
|000039e0| 28 6d 30 29 3b 0a 09 7d | 0a 09 72 65 74 75 72 6e |(m0);..}|..return|
|000039f0| 20 65 72 72 6f 72 3b 0a | 7d 0a 0a 2f 2a 0a 20 2a | error;.|}../*. *|
|00003a00| 20 74 68 65 20 63 64 65 | 76 73 77 20 77 72 69 74 | the cde|vsw writ|
|00003a10| 65 20 69 6e 74 65 72 66 | 61 63 65 20 2d 20 61 6e |e interf|ace - an|
|00003a20| 20 61 74 6f 6d 69 63 20 | 77 72 69 74 65 20 69 73 | atomic |write is|
|00003a30| 20 61 20 70 61 63 6b 65 | 74 20 2d 20 6f 72 20 65 | a packe|t - or e|
|00003a40| 6c 73 65 21 0a 20 2a 2f | 0a 0a 74 75 6e 77 72 69 |lse!. */|..tunwri|
|00003a50| 74 65 20 28 64 65 76 2c | 20 75 69 6f 29 0a 69 6e |te (dev,| uio).in|
|00003a60| 74 09 09 64 65 76 3b 0a | 73 74 72 75 63 74 20 75 |t..dev;.|struct u|
|00003a70| 69 6f 20 20 20 20 20 2a | 75 69 6f 3b 0a 7b 0a 09 |io     *|uio;.{..|
|00003a80| 69 6e 74 09 09 65 72 72 | 6f 72 20 3d 20 30 3b 0a |int..err|or = 0;.|
|00003a90| 09 69 6e 74 09 09 75 6e | 69 74 20 3d 20 6d 69 6e |.int..un|it = min|
|00003aa0| 6f 72 20 28 64 65 76 29 | 3b 0a 09 73 74 72 75 63 |or (dev)|;..struc|
|00003ab0| 74 20 6d 62 75 66 20 20 | 20 20 2a 74 6f 70 2c 20 |t mbuf  |  *top, |
|00003ac0| 2a 2a 6d 70 2c 20 2a 6d | 3b 0a 09 73 74 72 75 63 |**mp, *m|;..struc|
|00003ad0| 74 20 69 66 6e 65 74 20 | 20 20 2a 69 66 70 20 3d |t ifnet |  *ifp =|
|00003ae0| 20 26 28 74 75 6e 63 74 | 6c 5b 75 6e 69 74 5d 2e | &(tunct|l[unit].|
|00003af0| 74 75 6e 5f 69 66 29 3b | 0a 09 69 6e 74 09 09 73 |tun_if);|..int..s|
|00003b00| 3b 0a 0a 09 54 55 4e 44 | 45 42 55 47 20 28 22 25 |;...TUND|EBUG ("%|
|00003b10| 73 25 64 3a 20 74 75 6e | 77 72 69 74 65 5c 6e 22 |s%d: tun|write\n"|
|00003b20| 2c 20 69 66 70 2d 3e 69 | 66 5f 6e 61 6d 65 2c 20 |, ifp->i|f_name, |
|00003b30| 69 66 70 2d 3e 69 66 5f | 75 6e 69 74 29 3b 0a 0a |ifp->if_|unit);..|
|00003b40| 09 69 66 20 28 75 69 6f | 2d 3e 75 69 6f 5f 72 65 |.if (uio|->uio_re|
|00003b50| 73 69 64 20 3c 20 30 20 | 7c 7c 20 75 69 6f 2d 3e |sid < 0 ||| uio->|
|00003b60| 75 69 6f 5f 72 65 73 69 | 64 20 3e 20 54 55 4e 4d |uio_resi|d > TUNM|
|00003b70| 54 55 29 20 7b 0a 09 09 | 54 55 4e 44 45 42 55 47 |TU) {...|TUNDEBUG|
|00003b80| 20 28 22 25 73 25 64 3a | 20 6c 65 6e 3d 25 64 21 | ("%s%d:| len=%d!|
|00003b90| 5c 6e 22 2c 20 69 66 70 | 2d 3e 69 66 5f 6e 61 6d |\n", ifp|->if_nam|
|00003ba0| 65 2c 20 69 66 70 2d 3e | 69 66 5f 75 6e 69 74 2c |e, ifp->|if_unit,|
|00003bb0| 0a 09 09 09 20 20 75 69 | 6f 2d 3e 75 69 6f 5f 72 |....  ui|o->uio_r|
|00003bc0| 65 73 69 64 29 3b 0a 09 | 09 72 65 74 75 72 6e 20 |esid);..|.return |
|00003bd0| 45 49 4f 3b 0a 09 7d 0a | 09 74 6f 70 20 3d 20 30 |EIO;..}.|.top = 0|
|00003be0| 3b 0a 09 6d 70 20 3d 20 | 26 74 6f 70 3b 0a 09 77 |;..mp = |&top;..w|
|00003bf0| 68 69 6c 65 20 28 65 72 | 72 6f 72 20 3d 3d 20 30 |hile (er|ror == 0|
|00003c00| 20 26 26 20 75 69 6f 2d | 3e 75 69 6f 5f 72 65 73 | && uio-|>uio_res|
|00003c10| 69 64 20 3e 20 30 29 20 | 7b 0a 09 09 4d 47 45 54 |id > 0) |{...MGET|
|00003c20| 20 28 6d 2c 20 4d 5f 44 | 4f 4e 54 57 41 49 54 2c | (m, M_D|ONTWAIT,|
|00003c30| 20 4d 54 5f 44 41 54 41 | 29 3b 0a 09 09 69 66 20 | MT_DATA|);...if |
|00003c40| 28 6d 20 3d 3d 20 30 29 | 20 7b 0a 09 09 09 65 72 |(m == 0)| {....er|
|00003c50| 72 6f 72 20 3d 20 45 4e | 4f 42 55 46 53 3b 0a 09 |ror = EN|OBUFS;..|
|00003c60| 09 09 62 72 65 61 6b 3b | 0a 09 09 7d 0a 09 09 6d |..break;|...}...m|
|00003c70| 2d 3e 6d 5f 6c 65 6e 20 | 3d 20 4d 49 4e 20 28 4d |->m_len |= MIN (M|
|00003c80| 4c 45 4e 2c 20 75 69 6f | 2d 3e 75 69 6f 5f 72 65 |LEN, uio|->uio_re|
|00003c90| 73 69 64 29 3b 0a 09 09 | 65 72 72 6f 72 20 3d 20 |sid);...|error = |
|00003ca0| 75 69 6f 6d 6f 76 65 20 | 28 6d 74 6f 64 20 28 6d |uiomove |(mtod (m|
|00003cb0| 2c 20 63 61 64 64 72 5f | 74 29 2c 20 6d 2d 3e 6d |, caddr_|t), m->m|
|00003cc0| 5f 6c 65 6e 2c 20 55 49 | 4f 5f 57 52 49 54 45 2c |_len, UI|O_WRITE,|
|00003cd0| 20 75 69 6f 29 3b 0a 09 | 09 2a 6d 70 20 3d 20 6d | uio);..|.*mp = m|
|00003ce0| 3b 0a 09 09 6d 70 20 3d | 20 26 6d 2d 3e 6d 5f 6e |;...mp =| &m->m_n|
|00003cf0| 65 78 74 3b 0a 09 7d 0a | 09 69 66 20 28 65 72 72 |ext;..}.|.if (err|
|00003d00| 6f 72 29 20 7b 0a 09 09 | 69 66 20 28 74 6f 70 29 |or) {...|if (top)|
|00003d10| 0a 09 09 09 6d 5f 66 72 | 65 65 6d 20 28 74 6f 70 |....m_fr|eem (top|
|00003d20| 29 3b 0a 09 09 72 65 74 | 75 72 6e 20 65 72 72 6f |);...ret|urn erro|
|00003d30| 72 3b 0a 09 7d 0a 0a 23 | 69 66 64 65 66 20 42 53 |r;..}..#|ifdef BS|
|00003d40| 44 34 5f 33 0a 09 2f 2a | 0a 09 20 2a 20 50 6c 61 |D4_3../*|.. * Pla|
|00003d50| 63 65 20 69 6e 74 65 72 | 66 61 63 65 20 70 6f 69 |ce inter|face poi|
|00003d60| 6e 74 65 72 20 62 65 66 | 6f 72 65 20 74 68 65 20 |nter bef|ore the |
|00003d70| 64 61 74 61 0a 09 20 2a | 20 66 6f 72 20 74 68 65 |data.. *| for the|
|00003d80| 20 72 65 63 65 69 76 69 | 6e 67 20 70 72 6f 74 6f | receivi|ng proto|
|00003d90| 63 6f 6c 2e 0a 09 20 2a | 2f 0a 09 69 66 20 28 74 |col... *|/..if (t|
|00003da0| 6f 70 2d 3e 6d 5f 6f 66 | 66 20 3c 3d 20 4d 4d 41 |op->m_of|f <= MMA|
|00003db0| 58 4f 46 46 20 26 26 0a | 09 20 20 20 20 74 6f 70 |XOFF &&.|.    top|
|00003dc0| 2d 3e 6d 5f 6f 66 66 20 | 3e 3d 20 4d 4d 49 4e 4f |->m_off |>= MMINO|
|00003dd0| 46 46 20 2b 20 73 69 7a | 65 6f 66 28 73 74 72 75 |FF + siz|eof(stru|
|00003de0| 63 74 20 69 66 6e 65 74 | 20 2a 29 29 20 7b 0a 09 |ct ifnet| *)) {..|
|00003df0| 09 74 6f 70 2d 3e 6d 5f | 6f 66 66 20 2d 3d 20 73 |.top->m_|off -= s|
|00003e00| 69 7a 65 6f 66 28 73 74 | 72 75 63 74 20 69 66 6e |izeof(st|ruct ifn|
|00003e10| 65 74 20 2a 29 3b 0a 09 | 09 74 6f 70 2d 3e 6d 5f |et *);..|.top->m_|
|00003e20| 6c 65 6e 20 2b 3d 20 73 | 69 7a 65 6f 66 28 73 74 |len += s|izeof(st|
|00003e30| 72 75 63 74 20 69 66 6e | 65 74 20 2a 29 3b 0a 09 |ruct ifn|et *);..|
|00003e40| 7d 20 65 6c 73 65 20 7b | 0a 09 09 4d 47 45 54 28 |} else {|...MGET(|
|00003e50| 6d 2c 20 4d 5f 44 4f 4e | 54 57 41 49 54 2c 20 4d |m, M_DON|TWAIT, M|
|00003e60| 54 5f 48 45 41 44 45 52 | 29 3b 0a 09 09 69 66 20 |T_HEADER|);...if |
|00003e70| 28 6d 20 3d 3d 20 28 73 | 74 72 75 63 74 20 6d 62 |(m == (s|truct mb|
|00003e80| 75 66 20 2a 29 30 29 0a | 09 09 09 72 65 74 75 72 |uf *)0).|...retur|
|00003e90| 6e 20 28 45 4e 4f 42 55 | 46 53 29 3b 0a 09 09 6d |n (ENOBU|FS);...m|
|00003ea0| 2d 3e 6d 5f 6c 65 6e 20 | 3d 20 73 69 7a 65 6f 66 |->m_len |= sizeof|
|00003eb0| 28 73 74 72 75 63 74 20 | 69 66 6e 65 74 20 2a 29 |(struct |ifnet *)|
|00003ec0| 3b 0a 09 09 6d 2d 3e 6d | 5f 6e 65 78 74 20 3d 20 |;...m->m|_next = |
|00003ed0| 74 6f 70 3b 0a 09 09 74 | 6f 70 20 3d 20 6d 3b 0a |top;...t|op = m;.|
|00003ee0| 09 7d 0a 09 2a 28 6d 74 | 6f 64 28 74 6f 70 2c 20 |.}..*(mt|od(top, |
|00003ef0| 73 74 72 75 63 74 20 69 | 66 6e 65 74 20 2a 2a 29 |struct i|fnet **)|
|00003f00| 29 20 3d 20 69 66 70 3b | 0a 23 65 6e 64 69 66 20 |) = ifp;|.#endif |
|00003f10| 2f 2a 20 42 53 44 34 5f | 33 20 2a 2f 0a 0a 09 73 |/* BSD4_|3 */...s|
|00003f20| 20 3d 20 73 70 6c 69 6d | 70 20 28 29 3b 0a 09 69 | = splim|p ();..i|
|00003f30| 66 20 28 49 46 5f 51 46 | 55 4c 4c 20 28 26 69 70 |f (IF_QF|ULL (&ip|
|00003f40| 69 6e 74 72 71 29 29 20 | 7b 0a 09 09 49 46 5f 44 |intrq)) |{...IF_D|
|00003f50| 52 4f 50 20 28 26 69 70 | 69 6e 74 72 71 29 3b 0a |ROP (&ip|intrq);.|
|00003f60| 09 09 73 70 6c 78 20 28 | 73 29 3b 0a 09 09 69 66 |..splx (|s);...if|
|00003f70| 70 2d 3e 69 66 5f 63 6f | 6c 6c 69 73 69 6f 6e 73 |p->if_co|llisions|
|00003f80| 2b 2b 3b 0a 09 09 6d 5f | 66 72 65 65 6d 20 28 74 |++;...m_|freem (t|
|00003f90| 6f 70 29 3b 0a 09 09 72 | 65 74 75 72 6e 20 45 4e |op);...r|eturn EN|
|00003fa0| 4f 42 55 46 53 3b 0a 09 | 7d 0a 09 49 46 5f 45 4e |OBUFS;..|}..IF_EN|
|00003fb0| 51 55 45 55 45 20 28 26 | 69 70 69 6e 74 72 71 2c |QUEUE (&|ipintrq,|
|00003fc0| 20 74 6f 70 29 3b 0a 09 | 73 70 6c 78 20 28 73 29 | top);..|splx (s)|
|00003fd0| 3b 0a 09 69 66 70 2d 3e | 69 66 5f 69 70 61 63 6b |;..ifp->|if_ipack|
|00003fe0| 65 74 73 2b 2b 3b 0a 09 | 73 63 68 65 64 6e 65 74 |ets++;..|schednet|
|00003ff0| 69 73 72 20 28 4e 45 54 | 49 53 52 5f 49 50 29 3b |isr (NET|ISR_IP);|
|00004000| 0a 09 72 65 74 75 72 6e | 20 65 72 72 6f 72 3b 0a |..return| error;.|
|00004010| 7d 0a 0a 2f 2a 0a 20 2a | 20 74 75 6e 73 65 6c 65 |}../*. *| tunsele|
|00004020| 63 74 20 2d 20 74 68 65 | 20 73 65 6c 65 63 74 20 |ct - the| select |
|00004030| 69 6e 74 65 72 66 61 63 | 65 2c 20 74 68 69 73 20 |interfac|e, this |
|00004040| 69 73 20 6f 6e 6c 79 20 | 75 73 65 66 75 6c 20 6f |is only |useful o|
|00004050| 6e 20 72 65 61 64 73 20 | 72 65 61 6c 6c 79 2e 0a |n reads |really..|
|00004060| 20 2a 20 54 68 65 20 77 | 72 69 74 65 20 64 65 74 | * The w|rite det|
|00004070| 65 63 74 20 61 6c 77 61 | 79 73 20 72 65 74 75 72 |ect alwa|ys retur|
|00004080| 6e 73 20 74 72 75 65 2c | 20 77 72 69 74 65 20 6e |ns true,| write n|
|00004090| 65 76 65 72 20 62 6c 6f | 63 6b 73 20 61 6e 79 77 |ever blo|cks anyw|
|000040a0| 61 79 2c 20 69 74 20 65 | 69 74 68 65 72 0a 20 2a |ay, it e|ither. *|
|000040b0| 20 61 63 63 65 70 74 73 | 20 74 68 65 20 70 61 63 | accepts| the pac|
|000040c0| 6b 65 74 20 6f 72 20 64 | 72 6f 70 73 20 69 74 2e |ket or d|rops it.|
|000040d0| 0a 20 2a 2f 0a 74 75 6e | 73 65 6c 65 63 74 20 28 |. */.tun|select (|
|000040e0| 64 65 76 2c 20 72 77 29 | 0a 64 65 76 5f 74 09 09 |dev, rw)|.dev_t..|
|000040f0| 64 65 76 3b 0a 69 6e 74 | 09 09 72 77 3b 0a 7b 0a |dev;.int|..rw;.{.|
|00004100| 09 69 6e 74 09 09 75 6e | 69 74 20 3d 20 6d 69 6e |.int..un|it = min|
|00004110| 6f 72 20 28 64 65 76 29 | 3b 0a 09 72 65 67 69 73 |or (dev)|;..regis|
|00004120| 74 65 72 20 73 74 72 75 | 63 74 20 74 75 6e 63 74 |ter stru|ct tunct|
|00004130| 6c 20 2a 74 70 20 3d 20 | 26 74 75 6e 63 74 6c 5b |l *tp = |&tunctl[|
|00004140| 75 6e 69 74 5d 3b 0a 09 | 73 74 72 75 63 74 20 69 |unit];..|struct i|
|00004150| 66 6e 65 74 20 20 20 2a | 69 66 70 20 3d 20 26 74 |fnet   *|ifp = &t|
|00004160| 70 2d 3e 74 75 6e 5f 69 | 66 3b 0a 09 69 6e 74 09 |p->tun_i|f;..int.|
|00004170| 09 73 20 3d 20 73 70 6c | 69 6d 70 20 28 29 3b 0a |.s = spl|imp ();.|
|00004180| 0a 09 54 55 4e 44 45 42 | 55 47 20 28 22 25 73 25 |..TUNDEB|UG ("%s%|
|00004190| 64 3a 20 74 75 6e 73 65 | 6c 65 63 74 5c 6e 22 2c |d: tunse|lect\n",|
|000041a0| 20 69 66 70 2d 3e 69 66 | 5f 6e 61 6d 65 2c 20 69 | ifp->if|_name, i|
|000041b0| 66 70 2d 3e 69 66 5f 75 | 6e 69 74 29 3b 0a 09 73 |fp->if_u|nit);..s|
|000041c0| 77 69 74 63 68 20 28 72 | 77 29 20 7b 0a 09 20 20 |witch (r|w) {..  |
|000041d0| 20 20 63 61 73 65 20 46 | 52 45 41 44 3a 0a 09 09 |  case F|READ:...|
|000041e0| 69 66 20 28 69 66 70 2d | 3e 69 66 5f 73 6e 64 2e |if (ifp-|>if_snd.|
|000041f0| 69 66 71 5f 6c 65 6e 20 | 3e 20 30 29 20 7b 0a 09 |ifq_len |> 0) {..|
|00004200| 09 09 73 70 6c 78 20 28 | 73 29 3b 0a 09 09 09 54 |..splx (|s);....T|
|00004210| 55 4e 44 45 42 55 47 20 | 28 22 25 73 25 64 3a 20 |UNDEBUG |("%s%d: |
|00004220| 74 75 6e 73 65 6c 65 63 | 74 20 71 3d 25 64 5c 6e |tunselec|t q=%d\n|
|00004230| 22 2c 20 69 66 70 2d 3e | 69 66 5f 6e 61 6d 65 2c |", ifp->|if_name,|
|00004240| 0a 09 09 09 09 20 20 69 | 66 70 2d 3e 69 66 5f 75 |.....  i|fp->if_u|
|00004250| 6e 69 74 2c 20 69 66 70 | 2d 3e 69 66 5f 73 6e 64 |nit, ifp|->if_snd|
|00004260| 2e 69 66 71 5f 6c 65 6e | 29 3b 0a 09 09 09 72 65 |.ifq_len|);....re|
|00004270| 74 75 72 6e 20 31 3b 0a | 09 09 7d 0a 09 09 69 66 |turn 1;.|..}...if|
|00004280| 20 28 74 70 2d 3e 74 75 | 6e 5f 72 73 65 6c 20 26 | (tp->tu|n_rsel &|
|00004290| 26 20 74 70 2d 3e 74 75 | 6e 5f 72 73 65 6c 2d 3e |& tp->tu|n_rsel->|
|000042a0| 70 5f 77 63 68 61 6e 20 | 3d 3d 0a 09 09 20 20 20 |p_wchan |==...   |
|000042b0| 20 28 63 61 64 64 72 5f | 74 29 20 26 20 73 65 6c | (caddr_|t) & sel|
|000042c0| 77 61 69 74 29 0a 09 09 | 09 74 70 2d 3e 74 75 6e |wait)...|.tp->tun|
|000042d0| 5f 66 6c 61 67 73 20 7c | 3d 20 54 55 4e 5f 52 43 |_flags ||= TUN_RC|
|000042e0| 4f 4c 4c 3b 0a 09 09 65 | 6c 73 65 0a 09 09 09 74 |OLL;...e|lse....t|
|000042f0| 70 2d 3e 74 75 6e 5f 72 | 73 65 6c 20 3d 20 75 2e |p->tun_r|sel = u.|
|00004300| 75 5f 70 72 6f 63 70 3b | 0a 09 09 62 72 65 61 6b |u_procp;|...break|
|00004310| 3b 0a 09 20 20 20 20 63 | 61 73 65 20 46 57 52 49 |;..    c|ase FWRI|
|00004320| 54 45 3a 0a 09 09 73 70 | 6c 78 20 28 73 29 3b 0a |TE:...sp|lx (s);.|
|00004330| 09 09 72 65 74 75 72 6e | 20 31 3b 0a 09 7d 0a 09 |..return| 1;..}..|
|00004340| 73 70 6c 78 20 28 73 29 | 3b 0a 09 54 55 4e 44 45 |splx (s)|;..TUNDE|
|00004350| 42 55 47 20 28 22 25 73 | 25 64 3a 20 74 75 6e 73 |BUG ("%s|%d: tuns|
|00004360| 65 6c 65 63 74 20 77 61 | 69 74 69 6e 67 5c 6e 22 |elect wa|iting\n"|
|00004370| 2c 20 69 66 70 2d 3e 69 | 66 5f 6e 61 6d 65 2c 20 |, ifp->i|f_name, |
|00004380| 69 66 70 2d 3e 69 66 5f | 75 6e 69 74 29 3b 0a 09 |ifp->if_|unit);..|
|00004390| 72 65 74 75 72 6e 20 30 | 3b 0a 7d 0a 23 65 6e 64 |return 0|;.}.#end|
|000043a0| 69 66 09 4e 54 55 4e 0a | 65 66 20 42 53 44 34 5f |if.NTUN.|ef BSD4_|
|000043b0| 33 0a 09 72 65 67 69 73 | 74 65 72 20 73 74 72 75 |3..regis|ter stru|
|000043c0| 63 74 20 73 6f 63 6b 61 | 64 64 72 5f 69 6e 20 2a |ct socka|ddr_in *|
|000043d0| 73 69 6e 3b 0a 0a 09 73 | 69 6e 20 3d 20 28 73 74 |sin;...s|in = (st|
|000043e0| 72 75 63 74 20 73 6f 63 | 6b 61 64 64 72 5f 69 6e |ruct soc|kaddr_in|
|000043f0| 20 2a 29 20 26 20 69 66 | 70 2d 3e 69 66 5f 61 64 | *) & if|p->if_ad|
|00004400| 75 6e 69 78 6b 69 74 2f | 74 75 6e 64 72 76 72 2f |unixkit/|tundrvr/|
|00004410| 74 75 6e 2e 34 6e 00 00 | 00 00 00 00 00 00 00 00 |tun.4n..|........|
|00004420| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004430| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004440| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004450| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004460| 00 00 00 00 20 20 20 36 | 34 34 20 00 20 32 34 32 |....   6|44 . 242|
|00004470| 31 37 20 00 20 20 20 20 | 33 36 20 00 20 20 20 20 |17 .    |36 .    |
|00004480| 20 20 20 35 33 36 36 20 | 20 34 34 30 31 33 32 30 |   5366 | 4401320|
|00004490| 37 34 33 20 20 31 30 34 | 33 35 00 20 00 00 00 00 |743  104|35. ....|
|000044a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000044b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000044c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000044d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000044e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000044f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004500| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004510| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004520| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004530| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004540| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004550| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004560| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004570| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004580| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004590| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000045a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000045b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000045c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000045d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000045e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000045f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004600| 2e 5c 22 20 24 48 65 61 | 64 65 72 3a 20 74 75 6e |.\" $Hea|der: tun|
|00004610| 2e 34 6e 2c 76 20 31 2e | 33 20 38 37 2f 31 31 2f |.4n,v 1.|3 87/11/|
|00004620| 30 34 20 31 35 3a 31 37 | 3a 32 37 20 6a 70 6f 20 |04 15:17|:27 jpo |
|00004630| 4c 6f 63 6b 65 64 20 24 | 0a 2e 5c 22 0a 2e 5c 22 |Locked $|..\"..\"|
|00004640| 20 24 4c 6f 67 3a 09 74 | 75 6e 2e 34 6e 2c 76 20 | $Log:.t|un.4n,v |
|00004650| 24 0a 2e 5c 22 20 52 65 | 76 69 73 69 6f 6e 20 31 |$..\" Re|vision 1|
|00004660| 2e 33 20 20 38 37 2f 31 | 31 2f 30 34 20 20 31 35 |.3  87/1|1/04  15|
|00004670| 3a 31 37 3a 32 37 20 20 | 6a 70 6f 0a 2e 5c 22 20 |:17:27  |jpo..\" |
|00004680| 54 6f 75 63 68 20 75 70 | 0a 2e 5c 22 20 0a 2e 5c |Touch up|..\" ..\|
|00004690| 22 20 52 65 76 69 73 69 | 6f 6e 20 31 2e 32 20 20 |" Revisi|on 1.2  |
|000046a0| 38 37 2f 31 31 2f 30 34 | 20 20 31 34 3a 33 30 3a |87/11/04|  14:30:|
|000046b0| 32 33 20 20 6a 70 6f 0a | 2e 5c 22 20 44 6f 63 75 |23  jpo.|.\" Docu|
|000046c0| 6d 65 6e 74 65 64 20 73 | 6f 6d 65 20 6f 66 20 74 |mented s|ome of t|
|000046d0| 68 65 20 69 6f 63 74 6c | 20 6f 70 74 69 6f 6e 73 |he ioctl| options|
|000046e0| 0a 2e 5c 22 20 0a 2e 5c | 22 20 52 65 76 69 73 69 |..\" ..\|" Revisi|
|000046f0| 6f 6e 20 31 2e 31 20 20 | 38 37 2f 31 30 2f 31 39 |on 1.1  |87/10/19|
|00004700| 20 20 30 39 3a 30 36 3a | 31 38 20 20 6a 70 6f 0a |  09:06:|18  jpo.|
|00004710| 2e 5c 22 20 49 6e 69 74 | 69 61 6c 20 72 65 76 69 |.\" Init|ial revi|
|00004720| 73 69 6f 6e 0a 2e 5c 22 | 20 0a 2e 5c 22 0a 2e 54 |sion..\"| ..\"..T|
|00004730| 48 20 54 55 4e 20 34 4e | 20 22 31 39 20 4f 63 74 |H TUN 4N| "19 Oct|
|00004740| 6f 62 65 72 20 31 39 38 | 37 22 0a 2e 53 48 20 4e |ober 198|7"..SH N|
|00004750| 41 4d 45 0a 74 75 6e 20 | 5c 2d 20 73 6f 66 74 77 |AME.tun |\- softw|
|00004760| 61 72 65 20 70 73 65 75 | 64 6f 20 6e 65 74 77 6f |are pseu|do netwo|
|00004770| 72 6b 20 69 6e 74 65 72 | 66 61 63 65 0a 2e 53 48 |rk inter|face..SH|
|00004780| 20 53 59 4e 4f 50 53 49 | 53 0a 2e 42 20 70 73 65 | SYNOPSI|S..B pse|
|00004790| 75 64 6f 2d 64 65 76 69 | 63 65 20 74 75 6e 0a 2e |udo-devi|ce tun..|
|000047a0| 73 70 0a 23 69 6e 63 6c | 75 64 65 20 3c 6e 65 74 |sp.#incl|ude <net|
|000047b0| 69 6e 65 74 2f 69 66 5f | 74 6e 72 65 67 2e 68 3e |inet/if_|tnreg.h>|
|000047c0| 0a 2e 73 70 0a 2e 53 48 | 20 44 45 53 43 52 49 50 |..sp..SH| DESCRIP|
|000047d0| 54 49 4f 4e 0a 54 68 65 | 0a 2e 49 20 74 75 6e 6e |TION.The|..I tunn|
|000047e0| 65 6c 0a 64 65 76 69 63 | 65 20 69 73 20 61 20 73 |el.devic|e is a s|
|000047f0| 6f 66 74 77 61 72 65 20 | 70 73 65 75 64 6f 20 6e |oftware |pseudo n|
|00004800| 65 74 77 6f 72 6b 20 69 | 6e 74 65 72 66 61 63 65 |etwork i|nterface|
|00004810| 3b 0a 73 65 65 0a 2e 49 | 52 20 69 66 20 28 34 4e |;.see..I|R if (4N|
|00004820| 29 0a 66 6f 72 20 61 20 | 67 65 6e 65 72 61 6c 20 |).for a |general |
|00004830| 64 65 73 63 72 69 70 74 | 69 6f 6e 20 6f 66 20 6e |descript|ion of n|
|00004840| 65 74 77 6f 72 6b 20 69 | 6e 74 65 72 66 61 63 65 |etwork i|nterface|
|00004850| 73 2e 0a 2e 4c 50 0a 54 | 68 65 0a 2e 49 20 74 75 |s...LP.T|he..I tu|
|00004860| 6e 6e 65 6c 0a 69 6e 74 | 65 72 66 61 63 65 20 70 |nnel.int|erface p|
|00004870| 72 6f 76 69 64 65 73 20 | 61 20 77 61 79 20 6f 66 |rovides |a way of|
|00004880| 20 67 65 74 74 69 6e 67 | 20 68 6f 6c 64 20 6f 66 | getting| hold of|
|00004890| 20 69 70 20 6e 65 74 77 | 6f 72 6b 20 70 61 63 6b | ip netw|ork pack|
|000048a0| 65 74 73 20 61 6e 64 0a | 75 73 69 6e 67 20 73 6f |ets and.|using so|
|000048b0| 6d 65 20 6f 74 68 65 72 | 20 6d 65 63 68 61 6e 69 |me other| mechani|
|000048c0| 73 6d 20 74 6f 20 72 6f | 75 74 65 20 74 68 65 6d |sm to ro|ute them|
|000048d0| 2e 20 49 74 20 69 73 20 | 74 79 70 69 63 61 6c 6c |. It is |typicall|
|000048e0| 79 20 75 73 65 64 20 74 | 6f 20 6d 6f 76 65 0a 70 |y used t|o move.p|
|000048f0| 61 63 6b 65 74 73 20 66 | 72 6f 6d 20 74 68 65 20 |ackets f|rom the |
|00004900| 6b 65 72 6e 65 6c 20 74 | 6f 20 75 73 65 72 20 73 |kernel t|o user s|
|00004910| 70 61 63 65 20 73 6f 20 | 74 68 61 74 20 74 68 65 |pace so |that the|
|00004920| 79 20 63 61 6e 20 62 65 | 20 77 72 61 70 70 65 64 |y can be| wrapped|
|00004930| 20 69 6e 0a 6f 74 68 65 | 72 20 70 72 6f 74 6f 63 | in.othe|r protoc|
|00004940| 6f 6c 73 20 28 65 2e 67 | 2e 20 58 2e 32 35 29 2e |ols (e.g|. X.25).|
|00004950| 0a 2e 4c 50 0a 54 68 65 | 20 74 75 6e 6e 65 6c 20 |..LP.The| tunnel |
|00004960| 69 73 20 61 63 63 65 73 | 73 65 64 20 76 69 61 20 |is acces|sed via |
|00004970| 61 20 73 70 65 63 69 61 | 6c 20 64 65 76 69 63 65 |a specia|l device|
|00004980| 20 6e 6f 72 6d 61 6c 6c | 79 20 66 6f 75 6e 64 20 | normall|y found |
|00004990| 69 6e 20 2f 64 65 76 2e | 0a 54 68 65 20 6e 6f 72 |in /dev.|.The nor|
|000049a0| 6d 61 6c 20 6f 70 65 72 | 61 74 69 6f 6e 73 20 6f |mal oper|ations o|
|000049b0| 66 20 6f 70 65 6e 2c 20 | 63 6c 6f 73 65 2c 20 72 |f open, |close, r|
|000049c0| 65 61 64 2c 20 77 72 69 | 74 65 2c 20 69 6f 63 74 |ead, wri|te, ioct|
|000049d0| 6c 2c 0a 61 6e 64 20 73 | 65 6c 65 63 74 20 77 6f |l,.and s|elect wo|
|000049e0| 72 6b 20 6f 6e 20 74 68 | 69 73 0a 64 65 76 69 63 |rk on th|is.devic|
|000049f0| 65 20 69 6e 20 74 68 65 | 20 6e 6f 72 6d 61 6c 20 |e in the| normal |
|00004a00| 77 61 79 2e 20 41 20 72 | 65 61 64 20 6f 6e 20 74 |way. A r|ead on t|
|00004a10| 68 65 20 64 65 76 69 63 | 65 20 79 69 65 6c 64 73 |he devic|e yields|
|00004a20| 20 61 20 73 69 6e 67 6c | 65 20 49 50 0a 70 61 63 | a singl|e IP.pac|
|00004a30| 6b 65 74 2c 20 70 72 6f | 76 69 64 69 6e 67 20 73 |ket, pro|viding s|
|00004a40| 75 66 66 69 63 69 65 6e | 74 20 73 70 61 63 65 20 |ufficien|t space |
|00004a50| 69 73 20 61 76 61 69 6c | 61 62 6c 65 20 74 6f 20 |is avail|able to |
|00004a60| 72 65 61 64 20 69 74 20 | 69 6e 74 6f 20 2d 0a 6f |read it |into -.o|
|00004a70| 74 68 65 72 77 69 73 65 | 20 74 68 65 20 72 65 6d |therwise| the rem|
|00004a80| 61 69 6e 64 65 72 20 69 | 73 20 64 72 6f 70 70 65 |ainder i|s droppe|
|00004a90| 64 2e 20 41 20 77 72 69 | 74 65 20 69 73 20 72 65 |d. A wri|te is re|
|00004aa0| 67 61 72 64 65 64 20 61 | 73 20 61 6e 20 49 50 0a |garded a|s an IP.|
|00004ab0| 70 61 63 6b 65 74 20 74 | 6f 20 62 65 20 71 75 65 |packet t|o be que|
|00004ac0| 75 65 64 2e 20 54 68 65 | 20 6e 6f 72 6d 61 6c 20 |ued. The| normal |
|00004ad0| 73 69 7a 65 20 6f 66 20 | 70 61 63 6b 65 74 73 20 |size of |packets |
|00004ae0| 74 68 61 74 20 74 68 65 | 20 74 75 6e 6e 65 6c 20 |that the| tunnel |
|00004af0| 77 6f 72 6b 73 0a 69 6e | 20 69 73 0a 2e 49 52 20 |works.in| is..IR |
|00004b00| 54 55 4e 4d 54 55 20 2e | 0a 2e 4c 50 0a 54 68 65 |TUNMTU .|..LP.The|
|00004b10| 20 74 75 6e 6e 65 6c 20 | 73 75 70 70 6f 72 74 73 | tunnel |supports|
|00004b20| 20 73 65 76 65 72 61 6c | 20 69 6f 63 74 6c 20 63 | several| ioctl c|
|00004b30| 61 6c 6c 73 2e 20 54 68 | 65 72 65 0a 61 72 65 20 |alls. Th|ere.are |
|00004b40| 74 77 6f 20 74 75 6e 6e | 65 6c 20 73 70 65 63 69 |two tunn|el speci|
|00004b50| 66 69 63 20 63 61 6c 6c | 73 20 77 68 69 63 68 20 |fic call|s which |
|00004b60| 61 66 66 65 63 74 20 74 | 68 65 20 64 65 62 75 67 |affect t|he debug|
|00004b70| 67 69 6e 67 20 74 72 61 | 63 65 20 74 68 61 74 20 |ging tra|ce that |
|00004b80| 77 69 6c 6c 0a 61 70 70 | 65 61 72 20 6f 6e 20 74 |will.app|ear on t|
|00004b90| 68 65 20 63 6f 6e 73 6f | 6c 65 2e 20 54 68 65 20 |he conso|le. The |
|00004ba0| 74 77 6f 20 63 61 6c 6c | 73 20 65 69 74 68 65 72 |two call|s either|
|00004bb0| 20 73 65 74 20 74 68 65 | 20 64 65 62 75 67 67 69 | set the| debuggi|
|00004bc0| 6e 67 20 6c 65 76 65 6c | 2c 0a 6f 72 20 72 65 74 |ng level|,.or ret|
|00004bd0| 72 69 65 76 65 20 74 68 | 65 20 63 75 72 72 65 6e |rieve th|e curren|
|00004be0| 74 20 6c 65 76 65 6c 2e | 20 54 68 65 20 75 73 61 |t level.| The usa|
|00004bf0| 67 65 20 69 73 20 61 73 | 20 66 6f 6c 6c 6f 77 73 |ge is as| follows|
|00004c00| 20 2d 0a 2e 73 70 0a 2e | 69 6e 20 2b 35 0a 2e 6e | -..sp..|in +5..n|
|00004c10| 66 0a 69 6e 74 20 6f 6e | 6f 66 66 3b 0a 69 6f 63 |f.int on|off;.ioc|
|00004c20| 74 6c 20 28 74 75 6e 66 | 64 2c 20 54 55 4e 53 44 |tl (tunf|d, TUNSD|
|00004c30| 45 42 55 47 2c 20 26 6f | 6e 6f 66 66 29 0a 0a 69 |EBUG, &o|noff)..i|
|00004c40| 6f 63 74 6c 20 28 74 75 | 6e 66 64 2c 20 54 55 4e |octl (tu|nfd, TUN|
|00004c50| 47 44 45 42 55 47 2c 20 | 26 6f 6e 6f 66 66 29 0a |GDEBUG, |&onoff).|
|00004c60| 2e 69 6e 20 2d 35 0a 2e | 66 69 0a 2e 73 70 0a 57 |.in -5..|fi..sp.W|
|00004c70| 68 65 72 65 20 6f 6e 6f | 66 66 20 69 73 20 61 6e |here ono|ff is an|
|00004c80| 20 69 6e 74 65 67 65 72 | 20 73 65 74 20 74 6f 20 | integer| set to |
|00004c90| 30 20 6f 72 20 31 2e 0a | 2e 4c 50 0a 4f 74 68 65 |0 or 1..|.LP.Othe|
|00004ca0| 72 20 73 75 70 70 6f 72 | 74 65 64 20 63 61 6c 6c |r suppor|ted call|
|00004cb0| 73 20 61 72 65 0a 2e 49 | 50 20 46 49 4f 4e 42 49 |s are..I|P FIONBI|
|00004cc0| 4f 0a 53 65 74 20 62 6c | 6f 63 6b 69 6e 67 2f 6e |O.Set bl|ocking/n|
|00004cd0| 6f 6e 2d 62 6c 6f 63 6b | 69 6e 67 20 49 2f 4f 20 |on-block|ing I/O |
|00004ce0| 6d 6f 64 65 2e 0a 2e 49 | 50 20 46 49 4f 41 53 59 |mode...I|P FIOASY|
|00004cf0| 4e 43 0a 53 65 74 2f 75 | 6e 73 65 74 20 41 73 79 |NC.Set/u|nset Asy|
|00004d00| 6e 63 68 72 6f 6e 6f 75 | 73 20 49 2f 4f 20 6d 6f |nchronou|s I/O mo|
|00004d10| 64 65 2e 0a 2e 49 50 20 | 46 49 4f 4e 52 45 41 44 |de...IP |FIONREAD|
|00004d20| 0a 52 65 74 72 69 65 76 | 65 73 20 74 68 65 20 73 |.Retriev|es the s|
|00004d30| 69 7a 65 20 6f 66 20 74 | 68 65 20 6e 65 78 74 20 |ize of t|he next |
|00004d40| 70 61 63 6b 65 74 20 74 | 6f 20 62 65 20 72 65 61 |packet t|o be rea|
|00004d50| 64 2e 0a 2e 49 50 20 54 | 49 4f 43 47 50 47 52 50 |d...IP T|IOCGPGRP|
|00004d60| 0a 47 65 74 20 74 68 65 | 20 63 75 72 72 65 6e 74 |.Get the| current|
|00004d70| 20 70 72 6f 63 65 73 73 | 20 67 72 6f 75 70 2e 0a | process| group..|
|00004d80| 2e 49 50 20 54 49 4f 43 | 53 50 47 52 50 0a 53 65 |.IP TIOC|SPGRP.Se|
|00004d90| 74 20 74 68 65 20 63 75 | 72 72 65 6e 74 20 70 72 |t the cu|rrent pr|
|00004da0| 6f 63 65 73 73 20 67 72 | 6f 75 70 2e 0a 2e 4c 50 |ocess gr|oup...LP|
|00004db0| 0a 54 68 65 20 74 75 6e | 6e 65 6c 20 64 65 76 69 |.The tun|nel devi|
|00004dc0| 63 65 20 72 65 66 75 73 | 65 73 20 74 6f 20 68 61 |ce refus|es to ha|
|00004dd0| 6e 64 6c 65 20 70 61 63 | 6b 65 74 73 20 75 6e 74 |ndle pac|kets unt|
|00004de0| 69 6c 20 74 68 72 65 65 | 20 63 72 69 74 65 72 69 |il three| criteri|
|00004df0| 6f 6e 20 68 61 76 65 0a | 62 65 65 6e 20 6d 65 74 |on have.|been met|
|00004e00| 2e 0a 2e 49 50 20 31 2e | 0a 54 68 65 20 64 65 76 |...IP 1.|.The dev|
|00004e10| 69 63 65 20 68 61 73 20 | 62 65 65 6e 20 6f 70 65 |ice has |been ope|
|00004e20| 6e 65 64 20 77 69 74 68 | 20 6f 70 65 6e 28 32 29 |ned with| open(2)|
|00004e30| 2e 0a 2e 49 50 20 32 2e | 0a 54 68 65 20 69 6e 74 |...IP 2.|.The int|
|00004e40| 65 72 66 61 63 65 20 61 | 64 64 72 65 73 73 20 68 |erface a|ddress h|
|00004e50| 61 73 20 62 65 65 6e 20 | 73 65 74 20 77 69 74 68 |as been |set with|
|00004e60| 20 61 20 53 49 4f 43 53 | 49 46 41 44 44 52 20 69 | a SIOCS|IFADDR i|
|00004e70| 6f 63 74 6c 20 63 61 6c | 6c 20 28 6f 72 0a 74 68 |octl cal|l (or.th|
|00004e80| 72 6f 75 67 68 20 69 66 | 63 6f 6e 66 69 67 29 2e |rough if|config).|
|00004e90| 0a 2e 49 50 20 33 2e 0a | 54 68 65 20 6f 74 68 65 |..IP 3..|The othe|
|00004ea0| 72 20 65 6e 64 20 6f 66 | 20 74 68 65 20 70 6f 69 |r end of| the poi|
|00004eb0| 6e 74 2d 74 6f 2d 70 6f | 69 6e 74 20 6c 69 6e 6b |nt-to-po|int link|
|00004ec0| 20 68 61 73 20 68 61 64 | 20 74 68 65 20 61 64 64 | has had| the add|
|00004ed0| 72 65 73 73 20 73 65 74 | 20 77 69 74 68 0a 61 20 |ress set| with.a |
|00004ee0| 53 49 4f 43 53 49 46 44 | 53 54 41 44 44 52 20 69 |SIOCSIFD|STADDR i|
|00004ef0| 6f 63 74 6c 20 63 61 6c | 6c 2e 0a 2e 4c 50 0a 4f |octl cal|l...LP.O|
|00004f00| 6e 63 65 20 74 68 69 73 | 20 68 61 73 20 62 65 65 |nce this| has bee|
|00004f10| 6e 20 64 6f 6e 65 20 74 | 68 65 20 74 75 6e 6e 65 |n done t|he tunne|
|00004f20| 6c 20 77 69 6c 6c 20 73 | 74 61 72 74 20 72 6f 75 |l will s|tart rou|
|00004f30| 74 69 6e 67 20 70 61 63 | 6b 65 74 73 20 74 6f 20 |ting pac|kets to |
|00004f40| 74 68 65 0a 69 6e 74 65 | 72 66 61 63 65 2e 0a 2e |the.inte|rface...|
|00004f50| 4c 50 0a 41 20 63 6c 6f | 73 65 20 6f 6e 20 74 68 |LP.A clo|se on th|
|00004f60| 65 20 64 65 76 69 63 65 | 20 6d 61 72 6b 73 20 74 |e device| marks t|
|00004f70| 68 65 20 69 6e 74 65 72 | 66 61 63 65 20 61 73 20 |he inter|face as |
|00004f80| 64 6f 77 6e 20 61 6e 64 | 20 72 65 6d 6f 76 65 73 |down and| removes|
|00004f90| 20 74 68 65 0a 72 6f 75 | 74 69 6e 67 20 69 6e 66 | the.rou|ting inf|
|00004fa0| 6f 72 6d 61 74 69 6f 6e | 20 74 68 61 74 20 69 73 |ormation| that is|
|00004fb0| 20 73 65 74 2e 0a 2e 53 | 48 20 44 49 41 47 4e 4f | set...S|H DIAGNO|
|00004fc0| 53 54 49 43 53 0a 4e 6f | 20 64 69 61 67 6e 6f 73 |STICS.No| diagnos|
|00004fd0| 74 69 63 73 20 61 72 65 | 20 67 69 76 65 6e 20 64 |tics are| given d|
|00004fe0| 69 72 65 63 74 6c 79 20 | 62 79 20 74 68 65 20 74 |irectly |by the t|
|00004ff0| 75 6e 6e 65 6c 2e 20 41 | 73 20 6d 65 6e 74 69 6f |unnel. A|s mentio|
|00005000| 6e 65 64 20 61 62 6f 76 | 65 2c 0a 73 68 6f 72 74 |ned abov|e,.short|
|00005010| 20 72 65 61 64 73 20 63 | 61 75 73 65 20 70 61 63 | reads c|ause pac|
|00005020| 6b 65 74 20 66 72 61 67 | 6d 65 6e 74 73 20 74 6f |ket frag|ments to|
|00005030| 20 62 65 20 64 72 6f 70 | 70 65 64 20 73 69 6c 65 | be drop|ped sile|
|00005040| 6e 74 6c 79 2e 0a 2e 53 | 48 20 41 55 54 48 4f 52 |ntly...S|H AUTHOR|
|00005050| 0a 4a 75 6c 69 61 6e 20 | 4f 6e 69 6f 6e 73 20 3c |.Julian |Onions <|
|00005060| 6a 70 6f 40 63 73 2e 6e | 6f 74 74 2e 61 63 2e 75 |jpo@cs.n|ott.ac.u|
|00005070| 6b 3e 2c 20 4e 6f 74 74 | 69 6e 67 68 61 6d 20 55 |k>, Nott|ingham U|
|00005080| 6e 69 76 65 72 73 69 74 | 79 2c 20 45 4e 47 4c 41 |niversit|y, ENGLA|
|00005090| 4e 44 0a 2e 53 48 20 53 | 45 45 20 41 4c 53 4f 0a |ND..SH S|EE ALSO.|
|000050a0| 69 66 28 34 4e 29 2c 20 | 69 6e 65 74 28 34 46 29 |if(4N), |inet(4F)|
|000050b0| 2c 20 69 70 28 34 50 29 | 0a 2e 53 48 20 42 55 47 |, ip(4P)|..SH BUG|
|000050c0| 53 0a 49 74 20 73 68 6f | 75 6c 64 20 68 61 6e 64 |S.It sho|uld hand|
|000050d0| 6c 65 20 61 6c 6c 20 61 | 64 64 72 65 73 73 20 61 |le all a|ddress a|
|000050e0| 6e 64 20 70 72 6f 74 6f | 63 6f 6c 20 66 61 6d 69 |nd proto|col fami|
|000050f0| 6c 69 65 73 2e 0a 64 72 | 29 3b 0a 09 09 69 66 70 |lies..dr|);...ifp|
|00005100| 2d 3e 69 66 5f 68 6f 73 | 74 5b 30 5d 20 3d 20 69 |->if_hos|t[0] = i|
|00005110| 6e 5f 6c 6e 61 6f 66 20 | 28 73 69 6e 2d 3e 73 69 |n_lnaof |(sin->si|
|00005120| 6e 5f 61 64 64 72 29 3b | 0a 23 65 6e 64 69 66 0a |n_addr);|.#endif.|
|00005130| 09 09 74 75 6e 69 6e 69 | 74 20 28 69 66 70 2d 3e |..tunini|t (ifp->|
|00005140| 69 66 5f 75 6e 69 74 29 | 3b 0a 09 09 62 72 65 61 |if_unit)|;...brea|
|00005150| 6b 3b 0a 09 20 20 20 20 | 63 61 73 65 20 53 49 4f |k;..    |case SIO|
|00005160| 43 53 49 46 44 53 54 41 | 44 44 52 3a 0a 09 09 74 |CSIFDSTA|DDR:...t|
|00005170| 70 2d 3e 74 75 6e 5f 66 | 6c 61 67 73 20 7c 3d 20 |p->tun_f|lags |= |
|00005180| 54 55 4e 5f 44 53 54 41 | 44 44 52 3b 0a 23 69 66 |TUN_DSTA|DDR;.#if|
|00005190| 6e 64 65 66 20 42 53 44 | 34 5f 33 0a 23 69 66 6e |ndef BSD|4_3.#ifn|
|000051a0| 64 65 66 20 73 75 6e 0a | 09 09 73 69 6e 20 3d 20 |def sun.|..sin = |
|000051b0| 28 73 74 72 75 63 74 20 | 73 6f 63 6b 61 64 64 72 |(struct |sockaddr|
|000051c0| 5f 69 6e 20 2a 29 26 69 | 66 72 20 2d 3e 20 69 66 |_in *)&i|fr -> if|
|000051d0| 72 5f 61 64 64 72 3b 0a | 23 65 6e 64 69 66 0a 09 |r_addr;.|#endif..|
|000051e0| 09 69 66 70 2d 3e 69 66 | 5f 64 73 74 61 64 64 72 |.ifp->if|_dstaddr|
|000051f0| 20 3d 20 2a 28 28 73 74 | 72 75 63 74 20 73 6f 63 | = *((st|ruct soc|
|00005200| 75 6e 69 78 6b 69 74 2f | 74 75 6e 64 72 76 72 2f |unixkit/|tundrvr/|
|00005210| 52 45 41 44 4d 45 00 00 | 00 00 00 00 00 00 00 00 |README..|........|
|00005220| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005230| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005240| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005250| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005260| 00 00 00 00 20 20 20 36 | 34 34 20 00 20 32 34 32 |....   6|44 . 242|
|00005270| 31 37 20 00 20 20 20 20 | 33 36 20 00 20 20 20 20 |17 .    |36 .    |
|00005280| 20 20 31 30 34 37 33 20 | 20 35 31 31 33 32 34 31 |  10473 | 5113241|
|00005290| 32 30 35 20 20 31 30 32 | 35 33 00 20 00 00 00 00 |205  102|53. ....|
|000052a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000052b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000052c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000052d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000052e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000052f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005300| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005310| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005320| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005330| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005340| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005350| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005360| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005370| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005380| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005390| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000053a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000053b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000053c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000053d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000053e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000053f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005400| 5b 20 74 75 6e 6e 65 6c | 20 64 72 69 76 65 72 20 |[ tunnel| driver |
|00005410| 2d 20 69 6e 73 74 61 6c | 6c 61 74 69 6f 6e 20 69 |- instal|lation i|
|00005420| 6e 73 74 72 75 63 74 69 | 6f 6e 73 20 61 6e 64 20 |nstructi|ons and |
|00005430| 67 65 6e 65 72 61 6c 20 | 63 6f 6d 6d 65 6e 74 73 |general |comments|
|00005440| 5d 0a 0a 54 68 69 73 20 | 69 73 20 74 68 65 20 74 |]..This |is the t|
|00005450| 75 6e 6e 65 6c 20 64 72 | 69 76 65 72 20 66 6f 72 |unnel dr|iver for|
|00005460| 20 72 6f 75 74 69 6e 67 | 20 49 50 20 70 61 63 6b | routing| IP pack|
|00005470| 65 74 73 20 6f 76 65 72 | 20 6f 74 68 65 72 20 6e |ets over| other n|
|00005480| 65 74 77 6f 72 6b 73 2e | 0a 49 6e 20 70 61 72 74 |etworks.|.In part|
|00005490| 69 63 75 6c 61 72 20 69 | 74 20 63 61 6e 20 62 65 |icular i|t can be|
|000054a0| 20 75 73 65 64 20 66 6f | 72 20 72 66 63 38 37 37 | used fo|r rfc877|
|000054b0| 20 65 6e 63 61 70 73 75 | 61 6c 74 69 6f 6e 20 6f | encapsu|altion o|
|000054c0| 66 20 49 50 20 70 61 63 | 6b 65 74 73 0a 6f 76 65 |f IP pac|kets.ove|
|000054d0| 72 20 58 2e 32 35 20 2d | 20 62 75 74 20 74 68 65 |r X.25 -| but the|
|000054e0| 20 6b 65 72 6e 65 6c 20 | 6c 65 76 65 6c 20 64 72 | kernel |level dr|
|000054f0| 69 76 65 72 20 6a 75 73 | 74 20 64 65 6c 69 76 65 |iver jus|t delive|
|00005500| 72 73 20 49 50 20 70 61 | 63 6b 65 74 73 20 74 6f |rs IP pa|ckets to|
|00005510| 0a 6c 69 73 74 65 6e 69 | 6e 67 20 70 72 6f 63 65 |.listeni|ng proce|
|00005520| 73 73 65 73 2e 20 54 68 | 65 20 61 70 70 72 6f 78 |sses. Th|e approx|
|00005530| 69 6d 61 74 65 20 73 74 | 65 70 73 20 66 6f 72 20 |imate st|eps for |
|00005540| 69 6e 73 74 61 6c 6c 61 | 74 69 6f 6e 20 6f 66 20 |installa|tion of |
|00005550| 74 68 65 0a 64 72 69 76 | 65 72 20 61 72 65 20 61 |the.driv|er are a|
|00005560| 73 20 66 6f 6c 6c 6f 77 | 73 2e 0a 0a 31 2e 20 43 |s follow|s...1. C|
|00005570| 6f 70 79 20 74 68 65 20 | 66 69 6c 65 20 69 66 5f |opy the |file if_|
|00005580| 74 75 6e 2e 63 20 61 6e | 64 20 69 66 5f 74 6e 72 |tun.c an|d if_tnr|
|00005590| 65 67 2e 68 20 74 6f 20 | 74 68 65 20 64 69 72 65 |eg.h to |the dire|
|000055a0| 63 74 6f 72 79 0a 2f 75 | 73 72 2f 73 79 73 2f 6e |ctory./u|sr/sys/n|
|000055b0| 65 74 69 6e 65 74 2e 20 | 41 6c 73 6f 20 6d 61 6b |etinet. |Also mak|
|000055c0| 65 20 73 75 72 65 20 74 | 68 61 74 20 69 66 5f 74 |e sure t|hat if_t|
|000055d0| 6e 72 65 67 2e 68 20 61 | 70 70 65 61 72 73 20 69 |nreg.h a|ppears i|
|000055e0| 6e 0a 2f 75 73 72 2f 69 | 6e 63 6c 75 64 65 2f 6e |n./usr/i|nclude/n|
|000055f0| 65 74 69 6e 65 74 20 61 | 73 20 77 65 6c 6c 20 2d |etinet a|s well -|
|00005600| 20 74 68 69 73 20 6d 61 | 79 20 6f 63 63 75 72 20 | this ma|y occur |
|00005610| 61 73 20 61 20 72 65 73 | 75 6c 74 20 6f 66 20 74 |as a res|ult of t|
|00005620| 68 65 20 66 69 72 73 74 | 0a 63 6f 70 79 2e 0a 49 |he first|.copy..I|
|00005630| 66 20 79 6f 75 20 61 72 | 65 20 72 75 6e 6e 69 6e |f you ar|e runnin|
|00005640| 67 20 53 75 6e 4f 73 20 | 34 2e 30 2c 20 61 64 64 |g SunOs |4.0, add|
|00005650| 20 61 20 6c 69 6e 65 20 | 0a 23 64 65 66 69 6e 65 | a line |.#define|
|00005660| 20 53 55 4e 4f 53 34 0a | 73 6f 6d 65 77 68 65 72 | SUNOS4.|somewher|
|00005670| 65 20 61 74 20 74 68 65 | 20 73 74 61 72 74 20 6f |e at the| start o|
|00005680| 66 20 2f 75 73 72 2f 73 | 79 73 2f 6e 65 74 69 6e |f /usr/s|ys/netin|
|00005690| 65 74 2f 69 66 5f 74 75 | 6e 2e 63 2e 0a 0a 32 2e |et/if_tu|n.c...2.|
|000056a0| 20 45 64 69 74 20 74 68 | 65 20 66 69 6c 65 20 2f | Edit th|e file /|
|000056b0| 75 73 72 2f 73 79 73 2f | 7b 73 75 6e 2c 76 61 78 |usr/sys/|{sun,vax|
|000056c0| 2c 77 68 61 74 65 76 65 | 72 7d 2f 63 6f 6e 66 2e |,whateve|r}/conf.|
|000056d0| 63 20 61 6e 64 20 61 64 | 64 20 74 68 65 73 65 0a |c and ad|d these.|
|000056e0| 6c 69 6e 65 73 20 62 65 | 66 6f 72 65 20 74 68 65 |lines be|fore the|
|000056f0| 20 73 74 61 72 74 20 6f | 66 20 74 68 65 20 63 64 | start o|f the cd|
|00005700| 65 76 73 77 20 74 61 62 | 6c 65 2e 20 54 68 69 73 |evsw tab|le. This|
|00005710| 20 73 74 61 72 74 73 20 | 77 69 74 68 20 73 6f 6d | starts |with som|
|00005720| 65 74 68 69 6e 67 0a 6c | 69 6b 65 0a 2d 2d 2d 2d |ething.l|ike.----|
|00005730| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005740| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005750| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005760| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 0a 73 |--------|------.s|
|00005770| 74 72 75 63 74 20 63 64 | 65 76 73 77 20 20 20 63 |truct cd|evsw   c|
|00005780| 64 65 76 73 77 5b 5d 20 | 3d 0a 7b 0a 20 20 20 20 |devsw[] |=.{.    |
|00005790| 7b 0a 20 20 20 20 20 20 | 20 20 63 6e 6f 70 65 6e |{.      |  cnopen|
|000057a0| 2c 20 20 20 20 20 20 20 | 20 20 63 6e 63 6c 6f 73 |,       |  cnclos|
|000057b0| 65 2c 20 20 20 20 20 20 | 20 20 63 6e 72 65 61 64 |e,      |  cnread|
|000057c0| 2c 20 20 20 20 20 20 20 | 20 20 63 6e 77 72 69 74 |,       |  cnwrit|
|000057d0| 65 2c 20 2f 2a 30 2a 2f | 0a 2d 2d 2d 2d 2d 2d 2d |e, /*0*/|.-------|
|000057e0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000057f0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005800| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005810| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 0a 54 68 65 20 |--------|---.The |
|00005820| 6c 69 6e 65 73 20 74 6f | 20 61 64 64 20 68 65 72 |lines to| add her|
|00005830| 65 20 61 72 65 0a 0a 2d | 2d 2d 2d 2d 2d 2d 2d 2d |e are..-|--------|
|00005840| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005850| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005860| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005870| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 0a 23 69 6e 63 6c 75 |--------|-.#inclu|
|00005880| 64 65 20 22 74 75 6e 2e | 68 22 0a 23 69 66 20 4e |de "tun.|h".#if N|
|00005890| 54 55 4e 20 3e 20 30 0a | 69 6e 74 20 74 75 6e 6f |TUN > 0.|int tuno|
|000058a0| 70 65 6e 20 28 29 2c 20 | 74 75 6e 63 6c 6f 73 65 |pen (), |tunclose|
|000058b0| 20 28 29 2c 20 74 75 6e | 63 69 6f 63 74 6c 20 28 | (), tun|cioctl (|
|000058c0| 29 2c 20 74 75 6e 72 65 | 61 64 20 28 29 2c 0a 20 |), tunre|ad (),. |
|000058d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 74 |        |       t|
|000058e0| 75 6e 77 72 69 74 65 20 | 28 29 2c 20 74 75 6e 73 |unwrite |(), tuns|
|000058f0| 65 6c 65 63 74 20 28 29 | 3b 0a 23 65 6c 73 65 0a |elect ()|;.#else.|
|00005900| 23 64 65 66 69 6e 65 20 | 74 75 6e 6f 70 65 6e 20 |#define |tunopen |
|00005910| 20 20 20 20 20 20 20 20 | 6e 6f 64 65 76 0a 23 64 |        |nodev.#d|
|00005920| 65 66 69 6e 65 20 74 75 | 6e 63 6c 6f 73 65 20 20 |efine tu|nclose  |
|00005930| 20 20 20 20 20 20 6e 6f | 64 65 76 0a 23 64 65 66 |      no|dev.#def|
|00005940| 69 6e 65 20 74 75 6e 63 | 69 6f 63 74 6c 20 20 20 |ine tunc|ioctl   |
|00005950| 20 20 20 20 6e 6f 64 65 | 76 0a 23 64 65 66 69 6e |    node|v.#defin|
|00005960| 65 20 74 75 6e 72 65 61 | 64 20 20 20 20 20 20 20 |e tunrea|d       |
|00005970| 20 20 6e 6f 64 65 76 0a | 23 64 65 66 69 6e 65 20 |  nodev.|#define |
|00005980| 74 75 6e 77 72 69 74 65 | 20 20 20 20 20 20 20 20 |tunwrite|        |
|00005990| 6e 6f 64 65 76 0a 23 64 | 65 66 69 6e 65 20 74 75 |nodev.#d|efine tu|
|000059a0| 6e 73 65 6c 65 63 74 20 | 20 20 20 20 20 20 6e 6f |nselect |      no|
|000059b0| 64 65 76 0a 23 65 6e 64 | 69 66 0a 2d 2d 2d 2d 2d |dev.#end|if.-----|
|000059c0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000059d0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000059e0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000059f0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 0a 54 68 |--------|-----.Th|
|00005a00| 65 6e 2c 20 61 74 20 74 | 68 65 20 65 6e 64 20 6f |en, at t|he end o|
|00005a10| 66 20 74 68 65 20 63 64 | 65 76 73 77 20 74 61 62 |f the cd|evsw tab|
|00005a20| 6c 65 20 61 64 64 20 74 | 68 65 20 66 6f 6c 6c 6f |le add t|he follo|
|00005a30| 77 69 6e 67 20 6c 69 6e | 65 73 2d 20 0a 2d 2d 2d |wing lin|es- .---|
|00005a40| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005a50| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005a60| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005a70| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 0a |--------|-------.|
|00005a80| 20 20 66 6f 72 20 62 73 | 64 20 6f 72 20 53 75 6e |  for bs|d or Sun|
|00005a90| 4f 73 20 33 2e 78 20 3a | 0a 2d 2d 2d 2d 2d 2d 2d |Os 3.x :|.-------|
|00005aa0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005ab0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005ac0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005ad0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 0a 20 20 20 20 |--------|---.    |
|00005ae0| 7b 0a 20 20 20 20 20 20 | 20 20 74 75 6e 6f 70 65 |{.      |  tunope|
|00005af0| 6e 2c 20 20 20 20 20 20 | 20 20 74 75 6e 63 6c 6f |n,      |  tunclo|
|00005b00| 73 65 2c 20 20 20 20 20 | 20 20 74 75 6e 72 65 61 |se,     |  tunrea|
|00005b10| 64 2c 20 20 20 20 20 20 | 20 20 74 75 6e 77 72 69 |d,      |  tunwri|
|00005b20| 74 65 2c 20 2f 2a 3f 3f | 2a 2f 0a 20 20 20 20 20 |te, /*??|*/.     |
|00005b30| 20 20 20 74 75 6e 63 69 | 6f 63 74 6c 2c 20 20 20 |   tunci|octl,   |
|00005b40| 20 20 20 6e 75 6c 6c 64 | 65 76 2c 20 20 20 20 20 |   nulld|ev,     |
|00005b50| 20 20 20 6e 75 6c 6c 64 | 65 76 2c 20 20 20 20 20 |   nulld|ev,     |
|00005b60| 20 20 20 30 2c 0a 20 20 | 20 20 20 20 20 20 74 75 |   0,.  |      tu|
|00005b70| 6e 73 65 6c 65 63 74 2c | 20 20 20 20 20 20 30 2c |nselect,|      0,|
|00005b80| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 30 2c |        |      0,|
|00005b90| 0a 20 20 20 20 7d 2c 0a | 2d 2d 2d 2d 2d 2d 2d 2d |.    },.|--------|
|00005ba0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005bb0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005bc0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005bd0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 0a 20 20 66 6f 72 |--------|--.  for|
|00005be0| 20 53 75 6e 4f 73 20 34 | 2e 30 20 3a 0a 2d 2d 2d | SunOs 4|.0 :.---|
|00005bf0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005c00| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005c10| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005c20| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 0a |--------|-------.|
|00005c30| 20 20 20 20 7b 0a 20 20 | 20 20 20 20 20 20 74 75 |    {.  |      tu|
|00005c40| 6e 6f 70 65 6e 2c 20 20 | 20 20 20 20 20 20 74 75 |nopen,  |      tu|
|00005c50| 6e 63 6c 6f 73 65 2c 20 | 20 20 20 20 20 20 74 75 |nclose, |      tu|
|00005c60| 6e 72 65 61 64 2c 20 20 | 20 20 20 20 20 20 74 75 |nread,  |      tu|
|00005c70| 6e 77 72 69 74 65 2c 20 | 2f 2a 3f 3f 2a 2f 0a 20 |nwrite, |/*??*/. |
|00005c80| 20 20 20 20 20 20 20 74 | 75 6e 63 69 6f 63 74 6c |       t|uncioctl|
|00005c90| 2c 20 20 20 20 20 20 6e | 75 6c 6c 64 65 76 2c 09 |,      n|ulldev,.|
|00005ca0| 74 75 6e 73 65 6c 65 63 | 74 2c 20 20 20 20 20 20 |tunselec|t,      |
|00005cb0| 30 2c 0a 09 30 2c 0a 20 | 20 20 20 7d 2c 0a 2d 2d |0,..0,. |   },.--|
|00005cc0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005cd0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005ce0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005cf0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005d00| 0a 0a 54 68 65 20 3f 3f | 20 73 68 6f 75 6c 64 20 |..The ??| should |
|00005d10| 62 65 20 66 69 6c 6c 65 | 64 20 69 6e 20 61 73 20 |be fille|d in as |
|00005d20| 61 70 70 72 6f 70 72 69 | 61 74 65 20 2d 20 69 74 |appropri|ate - it|
|00005d30| 20 69 73 20 74 68 65 20 | 6e 74 68 20 65 6e 74 72 | is the |nth entr|
|00005d40| 79 20 69 6e 20 74 68 65 | 0a 74 61 62 6c 65 20 69 |y in the|.table i|
|00005d50| 74 73 20 70 72 6f 62 61 | 62 6c 79 20 73 6f 6d 65 |ts proba|bly some|
|00005d60| 77 68 65 72 65 20 69 6e | 20 74 68 65 20 72 61 6e |where in| the ran|
|00005d70| 67 65 20 6f 66 20 33 30 | 2d 35 30 2e 20 54 68 65 |ge of 30|-50. The|
|00005d80| 72 65 20 69 73 20 75 73 | 75 61 6c 6c 79 20 61 0a |re is us|ually a.|
|00005d90| 73 69 6d 69 6c 61 72 20 | 63 6f 6d 6d 65 6e 74 20 |similar |comment |
|00005da0| 66 6f 72 20 74 68 65 20 | 70 72 65 76 69 6f 75 73 |for the |previous|
|00005db0| 20 64 65 76 69 63 65 2c | 20 6a 75 73 74 20 61 64 | device,| just ad|
|00005dc0| 64 20 6f 6e 65 20 74 6f | 20 74 68 61 74 20 69 66 |d one to| that if|
|00005dd0| 20 74 68 69 73 0a 69 73 | 20 74 68 65 20 63 61 73 | this.is| the cas|
|00005de0| 65 2e 20 52 65 6d 65 6d | 62 65 72 20 74 68 69 73 |e. Remem|ber this|
|00005df0| 20 6e 75 6d 62 65 72 20 | 61 73 20 69 74 20 69 73 | number |as it is|
|00005e00| 20 75 73 65 64 20 6c 61 | 74 65 72 2e 0a 0a 33 2e | used la|ter...3.|
|00005e10| 20 45 64 69 74 20 74 68 | 65 20 66 69 6c 65 20 2f | Edit th|e file /|
|00005e20| 75 73 72 2f 73 79 73 2f | 63 6f 6e 66 2f 66 69 6c |usr/sys/|conf/fil|
|00005e30| 65 73 20 61 6e 64 20 61 | 64 64 20 74 68 65 20 6c |es and a|dd the l|
|00005e40| 69 6e 65 0a 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |ine.----|--------|
|00005e50| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005e60| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005e70| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005e80| 2d 2d 2d 2d 2d 2d 0a 6e | 65 74 69 6e 65 74 2f 69 |------.n|etinet/i|
|00005e90| 66 5f 74 75 6e 2e 63 20 | 20 20 20 20 20 20 20 20 |f_tun.c |        |
|00005ea0| 20 20 20 20 20 20 20 6f | 70 74 69 6f 6e 61 6c 20 |       o|ptional |
|00005eb0| 74 75 6e 0a 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |tun.----|--------|
|00005ec0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005ed0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005ee0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005ef0| 2d 2d 2d 2d 2d 2d 0a 61 | 74 20 73 6f 6d 65 77 68 |------.a|t somewh|
|00005f00| 65 72 65 20 61 70 70 72 | 6f 70 72 69 61 74 65 2e |ere appr|opriate.|
|00005f10| 0a 0a 34 2e 20 45 64 69 | 74 20 79 6f 75 72 20 63 |..4. Edi|t your c|
|00005f20| 6f 6e 66 69 67 75 72 61 | 74 69 6f 6e 20 66 69 6c |onfigura|tion fil|
|00005f30| 65 20 2f 75 73 72 2f 73 | 79 73 2f 63 6f 6e 66 2f |e /usr/s|ys/conf/|
|00005f40| 4d 41 43 48 49 4e 45 5f | 4e 41 4d 45 20 61 6e 64 |MACHINE_|NAME and|
|00005f50| 20 61 64 64 20 74 68 65 | 0a 6c 69 6e 65 20 0a 2d | add the|.line .-|
|00005f60| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005f70| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005f80| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005f90| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005fa0| 2d 0a 70 73 65 75 64 6f | 2d 64 65 76 69 63 65 20 |-.pseudo|-device |
|00005fb0| 20 20 74 75 6e 58 0a 2d | 2d 2d 2d 2d 2d 2d 2d 2d |  tunX.-|--------|
|00005fc0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005fd0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005fe0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005ff0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 0a 77 68 65 72 65 20 |--------|-.where |
|00006000| 58 20 69 73 20 74 68 65 | 20 6e 75 6d 62 65 72 20 |X is the| number |
|00006010| 6f 66 20 74 75 6e 6e 65 | 6c 73 20 79 6f 75 20 72 |of tunne|ls you r|
|00006020| 65 71 75 69 72 65 20 28 | 31 20 66 6f 72 20 65 61 |equire (|1 for ea|
|00006030| 63 68 20 69 6e 74 65 72 | 66 61 63 65 0a 61 64 64 |ch inter|face.add|
|00006040| 72 65 73 73 20 79 6f 75 | 20 72 65 71 75 69 72 65 |ress you| require|
|00006050| 20 74 6f 20 75 73 65 20 | 69 2e 65 2e 20 66 6f 72 | to use |i.e. for|
|00006060| 20 58 2e 32 35 20 31 20 | 66 6f 72 20 65 61 63 68 | X.25 1 |for each|
|00006070| 20 72 65 6d 6f 74 65 20 | 63 6f 6e 6e 65 63 74 69 | remote |connecti|
|00006080| 6f 6e 0a 79 6f 75 20 61 | 72 65 20 6c 69 6b 65 6c |on.you a|re likel|
|00006090| 79 20 74 6f 20 77 61 6e | 74 20 61 74 20 74 68 65 |y to wan|t at the|
|000060a0| 20 73 61 6d 65 20 74 69 | 6d 65 2e 29 0a 0a 35 2e | same ti|me.)..5.|
|000060b0| 20 72 75 6e 20 63 6f 6e | 66 69 67 20 6f 6e 20 79 | run con|fig on y|
|000060c0| 6f 75 72 20 63 6f 6e 66 | 69 67 75 72 61 74 69 6f |our conf|iguratio|
|000060d0| 6e 20 66 69 6c 65 20 28 | 2f 65 74 63 2f 63 6f 6e |n file (|/etc/con|
|000060e0| 66 69 67 20 4d 41 43 48 | 49 4e 45 5f 4e 41 4d 45 |fig MACH|INE_NAME|
|000060f0| 29 0a 61 6e 64 20 62 75 | 69 6c 64 20 74 68 65 20 |).and bu|ild the |
|00006100| 6b 65 72 6e 65 6c 20 61 | 6e 64 20 69 6e 73 74 61 |kernel a|nd insta|
|00006110| 6c 6c 20 69 74 20 69 6e | 20 61 20 62 6f 6f 74 61 |ll it in| a boota|
|00006120| 62 6c 65 20 70 6c 61 63 | 65 2e 20 59 6f 75 20 6d |ble plac|e. You m|
|00006130| 61 79 20 67 65 74 0a 73 | 6f 6d 65 20 70 72 6f 62 |ay get.s|ome prob|
|00006140| 6c 65 6d 73 20 77 69 74 | 68 20 74 68 65 20 6d 61 |lems wit|h the ma|
|00006150| 6b 65 2e 20 63 6f 6e 66 | 69 67 20 64 6f 65 73 6e |ke. conf|ig doesn|
|00006160| 27 74 20 61 6c 77 61 79 | 73 20 6e 6f 74 69 63 65 |'t alway|s notice|
|00006170| 20 23 69 66 64 65 66 20 | 6c 69 6e 65 73 0a 73 6f | #ifdef |lines.so|
|00006180| 20 74 68 65 72 65 20 6d | 61 79 20 62 65 20 61 20 | there m|ay be a |
|00006190| 73 70 75 72 69 6f 75 73 | 20 64 65 70 65 6e 64 65 |spurious| depende|
|000061a0| 6e 63 79 20 6f 6e 20 74 | 68 65 20 73 75 6e 20 61 |ncy on t|he sun a|
|000061b0| 6e 20 74 68 65 20 66 69 | 6c 65 0a 2e 2e 2f 76 61 |n the fi|le.../va|
|000061c0| 78 2f 6d 70 74 72 2e 68 | 2e 20 49 66 20 79 6f 75 |x/mptr.h|. If you|
|000061d0| 20 67 65 74 20 74 68 65 | 20 6d 65 73 73 61 67 65 | get the| message|
|000061e0| 0a 44 69 72 65 63 74 6f | 72 79 20 2e 2e 2f 76 61 |.Directo|ry ../va|
|000061f0| 78 3a 20 4d 61 6b 65 3a | 20 43 61 6e 6e 6f 74 20 |x: Make:| Cannot |
|00006200| 6f 70 65 6e 2e 20 20 53 | 74 6f 70 2e 0a 74 68 65 |open.  S|top..the|
|00006210| 6e 20 65 64 69 74 20 74 | 68 65 20 6d 61 6b 65 66 |n edit t|he makef|
|00006220| 69 6c 65 20 61 6e 64 20 | 72 65 6d 6f 76 65 20 74 |ile and |remove t|
|00006230| 68 65 20 6c 69 6e 65 20 | 67 69 76 69 6e 67 20 74 |he line |giving t|
|00006240| 68 69 73 20 64 65 70 65 | 6e 64 65 6e 63 79 2e 0a |his depe|ndency..|
|00006250| 0a 36 2e 20 43 6f 6e 73 | 74 72 75 63 74 20 74 68 |.6. Cons|truct th|
|00006260| 65 20 64 65 76 69 63 65 | 73 20 69 6e 20 2f 64 65 |e device|s in /de|
|00006270| 76 2f 20 62 79 20 72 75 | 6e 6e 69 6e 67 20 4d 41 |v/ by ru|nning MA|
|00006280| 4b 45 44 45 56 2e 74 75 | 6e 20 58 58 20 59 59 20 |KEDEV.tu|n XX YY |
|00006290| 77 68 65 72 65 0a 58 58 | 20 69 73 20 74 68 65 20 |where.XX| is the |
|000062a0| 6d 61 6a 6f 72 20 64 65 | 76 69 63 65 20 6e 75 6d |major de|vice num|
|000062b0| 62 65 72 20 28 69 6e 64 | 65 78 20 69 6e 20 74 68 |ber (ind|ex in th|
|000062c0| 65 20 63 64 65 76 73 77 | 20 66 6f 75 6e 64 20 69 |e cdevsw| found i|
|000062d0| 6e 20 73 74 65 70 20 32 | 29 0a 61 6e 64 20 59 59 |n step 2|).and YY|
|000062e0| 20 69 73 20 74 68 65 20 | 6e 75 6d 62 65 72 20 6f | is the |number o|
|000062f0| 66 20 64 65 76 69 63 65 | 20 79 6f 75 20 77 61 6e |f device| you wan|
|00006300| 74 20 28 74 68 69 73 20 | 73 68 6f 75 6c 64 20 62 |t (this |should b|
|00006310| 65 20 74 68 65 20 73 61 | 6d 65 20 61 73 0a 74 68 |e the sa|me as.th|
|00006320| 65 20 58 20 69 6e 20 73 | 74 65 70 20 34 20 2d 20 |e X in s|tep 4 - |
|00006330| 62 75 74 20 69 74 20 73 | 68 6f 75 6c 64 6e 27 74 |but it s|houldn't|
|00006340| 20 68 75 72 74 20 69 66 | 20 69 74 73 20 6d 6f 72 | hurt if| its mor|
|00006350| 65 29 2e 0a 0a 37 2e 20 | 54 68 61 74 73 20 69 74 |e)...7. |Thats it|
|00006360| 20 2d 20 62 6f 6f 74 20 | 75 70 20 74 68 65 20 6e | - boot |up the n|
|00006370| 65 77 20 6b 65 72 6e 65 | 6c 20 61 6e 64 20 74 68 |ew kerne|l and th|
|00006380| 65 20 64 65 76 69 63 65 | 20 73 68 6f 75 6c 64 20 |e device| should |
|00006390| 62 65 0a 72 75 6e 6e 61 | 62 6c 65 2e 0a 0a 5b 4e |be.runna|ble...[N|
|000063a0| 6f 74 65 3a 20 74 68 65 | 20 66 6f 6c 6c 6f 77 69 |ote: the| followi|
|000063b0| 6e 67 20 73 74 65 70 20 | 69 73 20 6e 6f 74 20 61 |ng step |is not a|
|000063c0| 70 70 6c 69 63 61 62 6c | 65 20 74 6f 20 4e 4f 53 |pplicabl|e to NOS|
|000063d0| 20 75 73 65 72 73 2e 20 | 20 4b 41 39 57 53 42 5d | users. | KA9WSB]|
|000063e0| 0a 38 2e 20 43 6f 6d 70 | 69 6c 65 20 74 68 65 20 |.8. Comp|ile the |
|000063f0| 74 75 6e 6e 65 6c 20 64 | 61 65 6d 6f 6e 20 28 6d |tunnel d|aemon (m|
+--------+-------------------------+-------------------------+--------+--------+