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|
if [ ! "$_MEDIA_NETWORK_SUBR" ]; then _MEDIA_NETWORK_SUBR=1
#
# Copyright (c) 2012-2013 Devin Teske
# All Rights Reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
############################################################ INCLUDES
BSDCFG_SHARE="/usr/share/bsdconfig"
. $BSDCFG_SHARE/common.subr || exit 1
f_dprintf "%s: loading includes..." media/network.subr
f_include $BSDCFG_SHARE/dialog.subr
f_include $BSDCFG_SHARE/media/tcpip.subr
BSDCFG_LIBE="/usr/libexec/bsdconfig"
f_include_lang $BSDCFG_LIBE/include/messages.subr
############################################################ GLOBALS
NETWORK_INITIALIZED=
############################################################ FUNCTIONS
# f_media_init_network $device
#
# Initialize a network device (such as `fxp0', `em0', etc.). Returns success if
# able to successfully initialize the device. If not running as init (basically
# from the FreeBSD install media) then assume that the network has already been
# initialized and returns success.
#
# The variables (from variable.subr) used to initialize the network are as
# follows (all of which are configured either automatically or manaully):
#
# VAR_IFCONFIG + device_name (e.g., `ifconfig_em0')
# Automatically populated but can be overridden in a script. This
# defines the ifconfig(8) properties specific to a chosen network
# interface device. Optional if VAR_IPV6ADDR is set.
# VAR_IPV6ADDR [Optional]
# If not running as init (and setting up RTSOL connections for
# the interface), then must be set manually. If set, used as the
# IPv6 configuration for the given network interface device.
# VAR_GATEWAY [Optional]
# If not running as init (and setting up a static connection for
# the interface) then must be set (usually via rc.conf(5), but
# can be set manually to override). If unset, the user is warned
# but not prevented from proceeding (as most connections need a
# default route but not everyone).
#
f_media_init_network()
{
local dev="$1"
f_dprintf "Init routine called for network device \`%s'." "$dev"
if [ "$NETWORK_INITIALIZED" ]; then
f_dprintf "Network already initialized."
return $SUCCESS
elif ! f_running_as_init; then
f_dprintf "Not running as init -- calling the deed done."
NETWORK_INITIALIZED=1
return $SUCCESS
fi
if [ ! -e "$RESOLV_CONF" ]; then
if ! f_config_resolv; then
f_show_msg "$msg_cant_seem_to_write_out_resolv_conf" \
"$RESOLV_CONF"
return $FAILURE
fi
fi
local cp
if f_getvar $VAR_IFCONFIG$dev cp; then
#
# If this interface isn't a DHCP one, bring it up.
# If it is, then it's already up.
#
case "$cp" in
*DHCP*)
f_dprintf "A DHCP interface. Should already be up."
;;
*)
f_dprintf "Not a DHCP interface."
if ! f_quietly ifconfig "$dev" $cp; then
f_show_msg "$msg_unable_to_configure_device" \
"$dev"
return $FAILURE
fi
local rp
f_getvar $VAR_GATEWAY rp
if [ ! "$rp" ]; then
f_show_msg "$msg_no_gateway_has_been_set"
else
#
# Explicitly flush all routes to get back to a
# known sane state. We don't need to check this
# exit code because if anything fails it will
# show up in the route add below.
#
f_quietly route -n flush
f_dprintf "Adding default route to %s." "$rp"
if ! f_quietly route -n add default "$rp"; then
f_show_msg \
"$msg_failed_to_add_default_route"
return $FAILURE
fi
fi
esac
elif ! { f_getvar $VAR_IPV6ADDR cp && [ "$cp" ]; }; then
f_show_msg "$msg_device_is_not_configured" "$dev"
return $FAILURE
fi
f_dprintf "Network initialized successfully."
NETWORK_INITIALIZED=1
return $SUCCESS
}
# f_media_shutdown_network $device
#
# Shuts down the configured network device (e.g., `fxp0', `em0', etc.) and
# deletes the default route (if configured). Returns failure if the device
# passed has not been configured. If not running as init (basically from the
# FreeBSD install media) then does nothing and returns success.
#
f_media_shutdown_network()
{
local dev="$1" cp
f_dprintf "Shutdown called for network device %s" "$dev"
if [ ! "$NETWORK_INITIALIZED" ]; then
f_dprintf "Network not initialized -- nothing to do."
return $SUCCESS
fi
unset NETWORK_INITIALIZED
unset $VAR_NETWORK_DEVICE
if ! f_running_as_init; then
f_dprintf "Not running as init -- calling the deed done."
return $SUCCESS
fi
f_getvar $VAR_IFCONFIG$dev cp || return $FAILURE
f_dprintf "ifconfig %s down" "$dev"
f_quietly ifconfig $dev down ||
f_show_msg "$msg_unable_to_down_the_interface_properly" "$dev"
if f_getvar $VAR_GATEWAY cp; then
f_dprintf "Deleting default route."
f_quietly route -n delete default
fi
return $SUCCESS
}
############################################################ MAIN
f_dprintf "%s: Successfully loaded." media/network.subr
fi # ! $_MEDIA_NETWORK_SUBR
|
