Rewrite the core parts in C. We now provide librc so other programs can

query runlevels, services and state without using bash. We also provide
libeinfo so other programs can easily use our informational functions.

As such, we have dropped the requirement of using bash as the init script
shell. We now use /bin/sh and have strived to make the scripts as portable
as possible. Shells that work are bash and dash. busybox works provided
you disable s-s-d. If you have WIPE_TMP set to yes in conf.d/bootmisc you
should disable find too.
zsh and ksh do not work at this time.

Networking support is currently being re-vamped also as it was heavily bash
array based. As such, a new config format is available like so
config_eth0="1.2.3.4/24 5.6.7.8/16"
or like so
config_eth0="'1.2.3.4 netmask 255.255.255.0' '5.6.7.8 netmask 255.255.0.0'"

We will still support the old bash array format provided that /bin/sh IS
a link it bash.

ChangeLog for baselayout-1 can be found in our SVN repo.

1 files changed, 239 insertions, 0 deletions

diff --git a/net.Linux/ifconfig.sh b/net.Linux/ifconfig.sh
new file mode 100644
index 00000000..637c42f5
--- /dev/null
+++ b/net.Linux/ifconfig.sh
@@ -0,0 +1,239 @@
+# Copyright 2004-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+ifconfig_depend() {
+	program /sbin/ifconfig
+	provide interface
+}
+
+_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
+}
+
+_up() {
+	ifconfig "${IFACE}" up
+}
+
+_down() {
+	ifconfig "${IFACE}" down
+}
+
+_exists() {
+	grep -Eq "^[[:space:]]*${IFACE}:[[:space:]]*" /proc/net/dev
+}
+
+_ifindex() {
+	local line= i=-2
+	while read line ; do
+		i=$((${i} + 1))
+		[ ${i} -lt 1 ] && continue
+		case "${line}" in
+			"${IFACE}: "*) echo "${i}"; return 0;;
+		esac
+	done < /proc/net/dev
+	return 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}:[[:space:]]+" /proc/net/wireless
+}
+
+_get_inet_address() {
+	set -- $(LC_ALL=C ifconfig "${IFACE}" |
+	sed -n -e 's/.*inet addr:\([^ ]*\).*Mask:\([^ ]*\).*/\1 \2/p')
+	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}" "$@"
+	fi
+
+#		# Support iproute2 style config where possible
+#		r="${config[@]}"
+#		config=( ${r//brd +/} )
+#		config=( "${config[@]//brd/broadcast}" )
+#		config=( "${config[@]//peer/pointopoint}" )
+#	fi
+
+	ifconfig "${iface}" "$@"
+}
+
+_add_route() {
+	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
+
+	if [ -n "${metric}" ] ; then
+		set -- "$@" metric ${metric}
+	fi
+
+	route add "$@"
+}
+
+_delete_addresses() {
+	# We don't remove addresses from aliases
+	case "${IFACE}" in
+		*:*) return 0 ;;
+	esac
+
+	einfo "Removing addresses"
+	eindent
+	# iproute2 can add many addresses to an iface unlike ifconfig ...
+	# iproute2 added addresses cause problems for ifconfig
+	# as we delete an address, a new one appears, so we have to
+	# keep polling
+	while true ; do
+		local addr=$(LC_ALL=C ifconfig "${IFACE}" |
+			sed -n -e 's/.*inet addr:\([^ ]*\).*/\1/p')
+
+		[ -z "${addr}" ] && break
+		
+		if [ "${addr}" = "127.0.0.1/8" ] ; then
+			# Don't delete the loopback address
+			[ "${IFACE}" = "lo" -o "${IFACE}" = "lo0" ] && break
+		fi
+		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}"
+
+	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 $?
+}
+
+# vim: set ts=4 :