From ccf238f852fd0463e68d33b91f0dd55000c325e3 Mon Sep 17 00:00:00 2001
From: Roy Marples <roy@marples.name>
Date: Wed, 26 Mar 2008 14:18:01 +0000
Subject: Merge net.OS into net

---
 net/ifconfig.sh.Linux.in | 291 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 291 insertions(+)
 create mode 100644 net/ifconfig.sh.Linux.in

(limited to 'net/ifconfig.sh.Linux.in')

diff --git a/net/ifconfig.sh.Linux.in b/net/ifconfig.sh.Linux.in
new file mode 100644
index 0000000..f82f25c
--- /dev/null
+++ b/net/ifconfig.sh.Linux.in
@@ -0,0 +1,291 @@
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+ifconfig_depend()
+{
+	program /sbin/ifconfig
+	provide interface
+}
+
+_up()
+{
+	ifconfig "${IFACE}" up
+}
+
+_down()
+{
+	ifconfig "${IFACE}" down
+}
+
+_exists()
+{
+	grep -Eq "^[[:space:]]*${IFACE}:" /proc/net/dev
+}
+
+_ifindex()
+{
+	local line= i=-2
+	while read line; do
+		i=$((${i} + 1))
+		[ ${i} -lt 1 ] && continue
+		case "${line}" in
+			"${IFACE}:"*) echo "${i}"; return 0;;
+		esac
+	done < /proc/net/dev
+
+	# Return the next available index
+	i=$((${i} + 1))
+	echo "${i}"
+	return 1
+}
+
+_is_wireless()
+{
+	# Support new sysfs layout
+	[ -d /sys/class/net/"${IFACE}"/wireless ] && return 0
+
+	[ ! -e /proc/net/wireless ] && return 1
+	grep -Eq "^[[:space:]]*${IFACE}:" /proc/net/wireless
+}
+
+_set_flag()
+{
+	ifconfig "${IFACE}" "$1"
+}
+
+_get_mac_address()
+{
+	local mac=$(LC_ALL=C ifconfig "${IFACE}" | \
+	sed -n -e 's/.* HWaddr \(..:..:..:..:..:..\).*/\1/p')
+
+	case "${mac}" in
+		00:00:00:00:00:00);;
+		44:44:44:44:44:44);;
+		FF:FF:FF:FF:FF:FF);;
+		"");;
+		*) echo "${mac}"; return 0;;
+	esac
+
+	return 1
+}
+
+_set_mac_address()
+{
+	ifconfig "${IFACE}" hw ether "$1"
+}
+
+_get_inet_address()
+{
+	set -- $(LC_ALL=C ifconfig "${IFACE}" |
+	sed -n -e 's/.*inet addr:\([^ ]*\).*Mask:\([^ ]*\).*/\1 \2/p')
+	[ -z "$1" ] && return 1
+
+	echo -n "$1"
+	shift
+	echo "/$(_netmask2cidr "$1")"
+}
+
+_get_inet_addresses()
+{
+	local iface=${IFACE} i=0
+	local addrs="$(_get_inet_address)"
+
+	while true; do
+		local IFACE="${iface}:${i}"
+		_exists || break
+		local addr="$(_get_inet_address)"
+		[ -n "${addr}" ] && addrs="${addrs}${addrs:+ }${addr}"
+		i=$((${i} + 1))
+	done
+	echo "${addrs}"
+}
+
+_cidr2netmask()
+{
+	local cidr="$1" netmask="" done=0 i=0 sum=0 cur=128
+	local octets= frac=
+
+	local octets=$((${cidr} / 8))
+	local frac=$((${cidr} % 8))
+	while [ ${octets} -gt 0 ]; do
+		netmask="${netmask}.255"
+		octets=$((${octets} - 1))
+		done=$((${done} + 1))
+	done
+
+	if [ ${done} -lt 4 ]; then
+		while [ ${i} -lt ${frac} ]; do
+			sum=$((${sum} + ${cur}))
+			cur=$((${cur} / 2))
+			i=$((${i} + 1))
+		done
+		netmask="${netmask}.${sum}"
+		done=$((${done} + 1))
+
+		while [ ${done} -lt 4 ]; do
+			netmask="${netmask}.0"
+			done=$((${done} + 1))
+		done
+	fi
+
+	echo "${netmask#.*}"
+}
+
+_add_address()
+{
+	if [ "$1" = "127.0.0.1/8" -a "${IFACE}" = "lo" ]; then
+		ifconfig "${IFACE}" "$@" 2>/dev/null
+		return 0
+	fi
+
+	case "$1" in 
+		*:*) ifconfig "${IFACE}" inet6 add "$@"; return $?;;
+	esac
+
+	# IPv4 is tricky - ifconfig requires an aliased device
+	# for multiple addresses
+	local iface="${IFACE}"
+	if LC_ALL=C ifconfig "${iface}" | grep -Eq "\<inet addr:.*"; then
+		# Get the last alias made for the interface and add 1 to it
+		i=$(ifconfig | sed '1!G;h;$!d' | grep -m 1 -o "^${iface}:[0-9]*" \
+			| sed -n -e 's/'"${iface}"'://p')
+		i=$((${i:-0} + 1))
+		iface="${iface}:${i}"
+	fi
+
+	# ifconfig doesn't like CIDR addresses
+	local ip="${1%%/*}" cidr="${1##*/}" netmask=
+	if [ -n "${cidr}" -a "${cidr}" != "${ip}" ]; then
+		netmask="$(_cidr2netmask "${cidr}")"
+		shift
+		set -- "${ip}" netmask "${netmask}" "$@"
+	fi
+
+	local arg= cmd=
+	while [ -n "$1" ]; do
+		case "$1" in
+			brd)
+				if [ "$2" = "+" ]; then
+					shift
+				else
+					cmd="${cmd} broadcast"
+				fi
+				;;
+			peer) cmd="${cmd} pointtopoint";;
+			*) cmd="${cmd} $1";;
+		esac
+		shift
+	done
+
+	ifconfig "${iface}" ${cmd}
+}
+
+_add_route()
+{
+	local inet6=
+
+	if [ -n "${metric}" ]; then
+		set -- "$@" metric ${metric}
+	fi
+
+	if [ $# -eq 3 ]; then
+		set -- "$1" "$2" gw "$3"
+	elif [ "$3" = "via" ]; then
+		local one=$1 two=$2
+		shift; shift; shift
+		set -- "${one}" "${two}" gw "$@"
+	fi
+
+	case "$@" in
+		*:*)
+			inet6="-A inet6"
+			[ "$1" = "-net" ] && shift
+			;;
+	esac
+
+	route ${inet6} add "$@" dev "${IFACE}"
+}
+
+_delete_addresses()
+{
+	# We don't remove addresses from aliases
+	case "${IFACE}" in
+		*:*) return 0;;
+	esac
+
+	einfo "Removing addresses"
+	eindent
+	# iproute2 can add many addresses to an iface unlike ifconfig ...
+	# iproute2 added addresses cause problems for ifconfig
+	# as we delete an address, a new one appears, so we have to
+	# keep polling
+	while true; do
+		local addr=$(_get_inet_address)
+		[ -z "${addr}" ] && break
+		
+		if [ "${addr}" = "127.0.0.1/8" ]; then
+			# Don't delete the loopback address
+			[ "${IFACE}" = "lo" -o "${IFACE}" = "lo0" ] && break
+		fi
+		einfo "${addr}"
+		ifconfig "${IFACE}" 0.0.0.0 || break
+	done
+
+	# Remove IPv6 addresses
+	local addr=
+	for addr in $(LC_ALL=C ifconfig "${IFACE}" | \
+		sed -n -e 's/^.*inet6 addr: \([^ ]*\) Scope:[^L].*/\1/p'); do
+		[ "${addr}" = "::1/128" -a "${IFACE}" = "lo" ] && continue
+		einfo "${addr}"
+		ifconfig "${IFACE}" inet6 del "${addr}"
+	done
+	
+	return 0
+}
+
+_has_carrier()
+{
+	return 0
+}
+
+_tunnel()
+{
+	iptunnel "$@"
+}
+
+ifconfig_pre_start()
+{
+	# MTU support
+	local mtu=
+	eval mtu=\$mtu_${IFVAR}
+	[ -n "${mtu}" ] && ifconfig "${IFACE}" mtu "${mtu}"
+
+	# TX Queue Length support
+	local len=
+	eval len=\$txqueuelen_${IFVAR}
+	[ -n "${len}" ] && ifconfig "${IFACE}" txqueuelen "${len}"
+
+	local tunnel=
+
+	eval tunnel=\$iptunnel_${IFVAR}
+	[ -z "${tunnel}" ] && return 0
+
+	# Set our base metric to 1000
+	metric=1000
+	
+	ebegin "Creating tunnel ${IFVAR}"
+	iptunnel add "${tunnel}"
+	eend $?
+}
+
+ifconfig_post_stop()
+{
+	# Don't delete sit0 as it's a special tunnel
+	[ "${IFACE}" = "sit0" ] && return 0
+
+	[ -z "$(iptunnel show "${IFACE}" 2>/dev/null)" ] && return 0
+
+	ebegin "Destroying tunnel ${IFACE}"
+	iptunnel del "${IFACE}"
+	eend $?
+}
-- 
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