if [ ! "$_NETWORKING_MEDIA_SUBR" ]; then _NETWORKING_MEDIA_SUBR=1
#
# Copyright (c) 2006-2013 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..." networking/media.subr
f_include $BSDCFG_SHARE/dialog.subr
f_include $BSDCFG_SHARE/networking/common.subr
f_include $BSDCFG_SHARE/strings.subr
f_include $BSDCFG_SHARE/sysrc.subr

BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking"
f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr

############################################################ FUNCTIONS

# f_ifconfig_options $interface
#
# Returns any/all extra ifconfig(8) parameters associated with $interface.
#
f_ifconfig_options()
{
	local interface="$1"
	[ "$interface" ] || return $SUCCESS

	#
	# Loop over the options, removing what we don't want
	#
	(
		set -- $( f_sysrc_get ifconfig_$interface )

		#
		# Return if the interface is configured for DHCP
		#
		glob="[Dd][Hh][Cc][Pp]"
		case "$*" in
		$glob|[Ss][Yy][Nn][Cc]$glob|[Nn][Oo][Ss][Yy][Nn][Cc]$glob)
			exit $SUCCESS
		esac

		output=
		while [ $# -gt 0 ]; do
			case "$1" in
			inet|netmask) shift 1 ;;
			*) output="$output${output:+ }$1"
			esac
			shift 1
		done
		echo "$output"
	)
}

# f_ifconfig_media $interface
#
# Returns list of supported media for $interface.
#
f_ifconfig_media()
{
	local interface="$1"
	ifconfig -m "$interface" 2> /dev/null | awk \
	'
		BEGIN { media_found = 0 }
		{
			if ( media_found == 1 ) { print; next }
		}
		( $1 $2 == "supported" "media:" ) \
		{
			media_found = 1
			next
		}
		END { exit ! media_found }
	'
}

# f_dialog_input_options $interface
#
# Input custom interface options. If the user does not press ESC or choose
# Cancel/No, $options will hold the user's input. Default input is taken from
# the same variable ($options).
#
f_dialog_input_options()
{
	local interface="$1"

	#
	# Return with-error when there are NFS-mounts currently active. If the
	# options are changed while NFS-exported directories are mounted,
	# the system may hang (if any NFS mounts are using that interface).
	#
	if f_nfs_mounted && ! f_jailed; then
		local setting="$( printf "$msg_current_options" \
		                         "$interface" "$options" )"
		f_noyes "$msg_nfs_mounts_may_cause_hang" "$setting" ||
			return $FAILURE
	fi

	local msg="$( printf "$msg_please_enter_mediaopts" "$interface" )"
	local hline="$hline_alnum_punc_tab_enter"

	local _options
	_options=$( $DIALOG \
		--title "$DIALOG_TITLE"         \
		--backtitle "$DIALOG_BACKTITLE" \
		--hline "$hline"                \
		--ok-label "$msg_ok"            \
		--cancel-label "$msg_cancel"    \
		--inputbox "$msg" 9 70          \
		"$options"                      \
		2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
	)
	local retval=$?
	f_dialog_line_sanitize _options

	[ $retval -eq $SUCCESS ] && options="$_options"

	return $retval
}

# f_dialog_menu_media_options $interface
#
# Display a menu of additional media options for the given network interface.
#
f_dialog_menu_media_options()
{
	local interface="$1" _options="$2"
	#
	# Not all network interfaces support additional media options, but
	# when available we should prompt the user to select from a list
	# of available options (or none, as is the first/default option).
	#

	#
	# Return with-error when there are NFS-mounts currently active. If the
	# media options are changed while NFS-exported directories are mounted,
	# the system may hang (if any NFS mounts are using that interface).
	#
	if f_nfs_mounted && ! f_jailed; then
		local setting="$( printf "$msg_current_options" \
		                         "$interface" "$_options" )"
		f_noyes "$msg_nfs_mounts_may_cause_hang" "$setting" ||
			return $FAILURE
	fi

	#
	# Build list of additional media options
	#
	local opt_none="$msg_no_options"
	local opt_cust="$msg_custom"
	local supported_media="$(
		f_ifconfig_media $interface | \
		( index=1

		  echo "'$( f_substr "$DIALOG_MENU_TAGS" $index 1 )'"
		  echo "'$opt_none'" 
		  index=$(( $index + 1 ))

		  echo "'$( f_substr "$DIALOG_MENU_TAGS" $index 1 )'"
		  echo "'$opt_cust'" 
		  index=$(( $index + 1 ))

		  while read media_options; do
		  	[ $index -lt ${#DIALOG_MENU_TAGS} ] || break
		  	echo "'$( f_substr "$DIALOG_MENU_TAGS" $index 1 )'"
		  	echo "'$media_options'"
		  	index=$(( $index + 1 ))
		  done
		)
	)"

	local msg
	if [ "$USE_XDIALOG" ]; then
		msg=$( printf "$xmsg_supported_media_options" \
		       		"$interface" "$interface" )
	else
		msg=$( printf "$msg_supported_media_options" \
		       		"$interface" "$interface" )
	fi

	local hline="$hline_arrows_tab_enter"

	local tag
	tag=$( eval $DIALOG \
		--title \"\$DIALOG_TITLE\"         \
		--backtitle \"\$DIALOG_BACKTITLE\" \
		--hline \"\$hline\"                \
		--ok-label \"\$msg_ok\"            \
		--cancel-label \"\$msg_cancel\"    \
		--menu \"\$msg\" 21 60 12          \
		$supported_media                   \
		2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
	)
	local retval=$?
	f_dialog_data_sanitize tag

	if [ $retval -eq $SUCCESS ]; then
		options=$( eval f_dialog_menutag2item \"\$tag\" \
		                                      $supported_media )
		case "$options" in
		"$opt_none")
			options=
			;;
		"$opt_cust")
			options="$_options"
			f_dialog_input_options "$interface"
			retval=$?
			;;
		esac
	fi

	return $retval
}

############################################################ MAIN

f_dprintf "%s: Successfully loaded." networking/media.subr

fi # ! $_NETWORKING_MEDIA_SUBR