etc/rc.d/netif

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2003 The FreeBSD Project. All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions
   7 # are met:
   8 # 1. Redistributions of source code must retain the above copyright
   9 #    notice, this list of conditions and the following disclaimer.
  10 # 2. Redistributions in binary form must reproduce the above copyright
  11 #    notice, this list of conditions and the following disclaimer in the
  12 #    documentation and/or other materials provided with the distribution.
  13 #
  14 # THIS SOFTWARE IS PROVIDED BY THE PROJECT ``AS IS'' AND ANY EXPRESS OR
  15 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17 # IN NO EVENT SHALL THE PROJECT BE LIABLE FOR ANY DIRECT, INDIRECT,
  18 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24 #
  25 # $FreeBSD: src/etc/rc.d/netif,v 1.2 2003/06/29 05:34:41 mtm Exp $
  26 #
  27
  28 # PROVIDE: netif
  29 # REQUIRE: atm1 mountcritlocal serial sppp sysctl tty
  30
  31 . /etc/rc.subr
  32 . /etc/network.subr
  33
  34 name="network"
  35 start_cmd="network_start"
  36 stop_cmd="network_stop"
  37 cloneup_cmd="clone_up"
  38 clonedown_cmd="clone_down"
  39 extra_commands="cloneup clonedown"
  40 _cmdifn=
  41
  42 network_start()
  43 {
  44         # Set the list of interfaces to work on.
  45         #
  46         _cmdifn=$*
  47
  48         if [ -z "$_cmdifn" ]; then
  49                 #
  50                 # We're operating as a general network start routine.
  51                 #
  52
  53                 # Create cloned interfaces
  54                 clone_up
  55
  56                 # Create IPv6<-->IPv4 tunnels
  57                 gif_up
  58
  59                 # Rename interfaces.
  60                 ifnet_rename
  61         fi
  62
  63         # Configure the interface(s).
  64         network_common ifn_start verbose
  65
  66         # Give our interfaces a little time to come up
  67         # before we start pounding them.  In particular, dhclient
  68         # and named can get mightily confused.
  69         sleep 2
  70 }
  71
  72 network_stop()
  73 {
  74         # Set the list of interfaces to work on.
  75         #
  76         _cmdifn=$*
  77
  78         echo -n "Stopping network:"
  79
  80         # Deconfigure the interface(s)
  81         network_common ifn_stop
  82         echo '.'
  83 }
  84
  85 # network_common routine verbose
  86 #       Common configuration subroutine for network interfaces. This
  87 #       routine takes all the preparatory steps needed for configuring
  88 #       an interface and then calls $routine. If $verbose is specified,
  89 #       it will call ifconfig(8) to show, in long format, the configured
  90 #       interfaces. If $verbose is not given, it will simply output the
  91 #       configured interface(s).
  92 network_common()
  93 {
  94         _func=
  95         _verbose=
  96
  97         if [ -z "$1" ]; then
  98                 err 1 "network_common(): No function name specified."
  99         else
 100                 _func="$1"
 101         fi
 102         [ -n "$2" ] && _verbose=yes
 103
 104         # Get a list of network interfaces.
 105         _ifn_list="`list_net_interfaces`"
 106
 107         # Set the scope of the command (all interfaces or just one).
 108         #
 109         _cooked_list=
 110         if [ -n "$_cmdifn" ]; then
 111                 for i in $_cmdifn ; do
 112                         eval _if=\"`expr "$_ifn_list" : ".*\(${i}\).*"`\"
 113                         if [ -z "$_if" ]; then
 114                                 err 1 "No such network interface: $i"
 115                         fi
 116                         _cooked_list="$_cooked_list $_if"
 117                 done
 118         else
 119                 _cooked_list="$_ifn_list"
 120         fi
 121
 122         for ifn in ${_cooked_list}; do
 123                 if ${_func} ${ifn} ; then
 124                         eval showstat_$ifn=1
 125                 else
 126                         _fail="$_fail $ifn"
 127                 fi
 128         done
 129
 130         # Display interfaces configured by this script
 131         #
 132         for ifn in ${_cooked_list}; do
 133                 eval showstat=\$showstat_${ifn}
 134                 if [ ! -z ${showstat} ]; then
 135                         if [ -n "$_verbose" ]; then
 136                                 ifconfig ${ifn}
 137                         else
 138                                 echo -n " ${ifn}"
 139                         fi
 140                 fi
 141         done
 142         debug "The following interfaces were not configured: $_fail"
 143 }
 144
 145 ifn_start()
 146 {
 147         local ifn cfg
 148         ifn="$1"
 149         cfg=1
 150
 151         [ -z "$ifn" ] && return 1
 152
 153         ifscript_up ${ifn} && cfg=0
 154         ifconfig_up ${ifn} && cfg=0
 155         ifalias_up ${ifn} && cfg=0
 156         ipx_up ${ifn} && cfg=0
 157         childif_create ${ifn} && cfg=0
 158
 159         return $cfg
 160 }
 161
 162 ifn_stop()
 163 {
 164         local ifn cfg
 165         ifn="$1"
 166         cfg=1
 167
 168         [ -z "$ifn" ] && return 1
 169
 170         ipx_down ${ifn} && cfg=0
 171         ifalias_down ${ifn} && cfg=0
 172         ifconfig_down ${ifn} && cfg=0
 173         ifscript_down ${ifn} && cfg=0
 174         childif_destroy ${ifn} && cfg=0
 175
 176         return $cfg
 177 }
 178
 179 # get_if_var if var [default]
 180 #       Return the value of the pseudo-hash corresponding to $if where
 181 #       $var is a string containg the sub-string "IF" which will be
 182 #       replaced with $if after the characters defined in _punct are
 183 #       replaced with '_'. If the variable is unset, replace it with
 184 #       $default if given.
 185 get_if_var()
 186 {
 187         local _if _punct _var _default prefix suffix
 188
 189         if [ $# -ne 2 -a $# -ne 3 ]; then
 190                 err 3 'USAGE: get_if_var name var [default]'
 191         fi
 192
 193         _if=$1
 194         _punct=". - / +"
 195         for _punct_c in $_punct; do
 196                 _if=`ltr ${_if} ${_punct_c} '_'`
 197         done
 198         _var=$2
 199         _default=$3
 200
 201         prefix=${_var%%IF*}
 202         suffix=${_var##*IF}
 203         eval echo \${${prefix}${_if}${suffix}-${_default}}
 204 }
 205
 206 # childif_create
 207 #       Create and configure child interfaces.  Return 0 if child
 208 #       interfaces are created.
 209 #
 210 childif_create()
 211 {
 212         local cfg child child_vlans child_wlans create_args debug_flags ifn i
 213         cfg=1
 214         ifn=$1
 215
 216         # Create wireless interfaces
 217         child_wlans=`get_if_var $ifn wlans_IF`
 218
 219         for child in ${child_wlans}; do
 220                 create_args="wlandev $ifn `get_if_var $child create_args_IF`"
 221                 debug_flags="`get_if_var $child wlandebug_IF`"
 222
 223                 if expr $child : 'wlan[0-9][0-9]*$' >/dev/null 2>&1; then
 224                         ifconfig $child create ${create_args} && cfg=0
 225                         if [ -n "${debug_flags}" ]; then
 226                                 wlandebug -i $child ${debug_flags}
 227                         fi
 228                 else
 229                         i=`ifconfig wlan create ${create_args}`
 230                         if [ -n "${debug_flags}" ]; then
 231                                 wlandebug -i $i ${debug_flags}
 232                         fi
 233                         ifconfig $i name $child && cfg=0
 234                 fi
 235                 ifn_start $child
 236         done
 237
 238         return ${cfg}
 239 }
 240
 241 # childif_destroy
 242 #       Destroy child interfaces.
 243 #
 244 childif_destroy()
 245 {
 246         local cfg child child_vlans child_wlans ifn
 247         cfg=1
 248
 249         child_wlans=`get_if_var $ifn wlans_IF`
 250         for child in ${child_wlans}; do
 251                 if ! `ifconfig -n $child > /dev/null 2>&1`; then
 252                         continue
 253                 fi
 254                 ifn_stop $child
 255                 ifconfig $child destroy && cfg=0
 256         done
 257
 258         return ${cfg}
 259 }
 260
 261 load_rc_config $name
 262 run_rc_command $*