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.

8 files changed, 553 insertions, 0 deletions

diff --git a/net/Makefile b/net/Makefile
new file mode 100644
index 0000000..5ed3d8b
--- /dev/null
+++ b/net/Makefile
@@ -0,0 +1,6 @@
+DIR   = /$(LIB)/rcscripts/net 
+FILES = dhclient.sh dhcpcd.sh macchanger.sh macnet.sh ssidnet.sh system.sh \
+	wpa_supplicant.sh
+
+TOPDIR = ..
+include $(TOPDIR)/default.mk
diff --git a/net/dhclient.sh b/net/dhclient.sh
new file mode 100644
index 0000000..14838d0
--- /dev/null
+++ b/net/dhclient.sh
@@ -0,0 +1,75 @@
+# Copyright 2004-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+dhclient_depend() {
+	after interface
+	program start /sbin/dhclient
+	provide dhcp
+}
+
+_config_vars="$_config_vars dhcp dhcpcd"
+
+dhclient_start() {
+	local args= opt= opts= pidfile="/var/run/dhclient-${IFACE}.pid"
+	local sendhost=true dconf=
+
+	_wait_for_carrier || return 1
+
+	# Get our options
+	eval opts=\$dhcp_${IFVAR}
+	[ -z "${opts}" ] && opts=${dhcp}
+
+	# Map some generic options to dhcpcd
+	for opt in ${opts} ; do
+		case "${opt}" in
+			nodns) args="${args} -e PEER_DNS=no" ;;
+			nontp) args="${args} -e PEER_NTP=no" ;;
+			nogateway) args="${args} -e PEER_ROUTERS=no" ;;
+			nosendhost) sendhost=false ;;
+		esac
+	done
+
+	# Add our route metric
+	[ "${metric:-0}" != "0" ] && args="${args} -e IF_METRIC=${metric}"
+
+	if ${sendhost} ; then
+		local hname="$(hostname)"
+		if [ "${hname}" != "(none)" -a "${hname}" != "localhost" ]; then
+			dhconf="${dhconf} interface \"${iface}\" {"
+			dhconf="${dhconf} send host-name \"${hname}\";"
+			dhconf="${dhconf}}"
+		fi
+	fi
+
+	# Bring up DHCP for this interface
+	ebegin "Running dhclient"
+	echo "${dhconf}" | start-stop-daemon --start --exec /sbin/dhclient \
+		--pidfile "${pidfile}" -- ${opts} -q -1 -pf "${pidfile}" "${IFACE}"
+	eend $? || return 1
+
+	_show_address
+	return 0
+}
+
+dhclient_stop() {
+	local pidfile="/var/run/dhclient-${IFACE}.pid" opts=
+	[ ! -f "${pidfile}" ] && return 0
+
+	# Get our options
+	if [ -x /sbin/dhclient ] ; then
+		eval opts=\$dhcp_${IFVAR}
+		[ -z "${opts}" ] && opts=${dhcp}
+	fi
+
+	ebegin "Stopping dhclient on ${IFACE}"
+	case " ${opts} " in
+		*" release "*) dhclient -q -r -pf "${pidfile}" "${IFACE}" ;;
+		*)
+			start-stop-daemon --stop --quiet \
+				--exec /sbin/dhclient --pidfile "${pidfile}"
+			;;
+	esac
+	eend $?
+}
+
+# vim: set ts=4 :
diff --git a/net/dhcpcd.sh b/net/dhcpcd.sh
new file mode 100644
index 0000000..f90f333
--- /dev/null
+++ b/net/dhcpcd.sh
@@ -0,0 +1,71 @@
+# Copyright 2004-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+dhcpcd_depend() {
+	after interface
+	program start /sbin/dhcpcd
+	provide dhcp
+
+	# We prefer dhcpcd over the others
+	after dhclient pump udhcpc
+}
+
+_config_vars="$_config_vars dhcp dhcpcd"
+
+dhcpcd_start() {
+	local args= opt= opts= pidfile="/var/run/dhcpcd-${IFACE}.pid"
+
+	_wait_for_carrier || return 1
+
+	eval args=\$dhcpcd_${IFVAR}
+
+	# Get our options
+	eval opts=\$dhcp_${IFVAR}
+	[ -z "${opts}" ] && opts=${dhcp}
+
+	# Map some generic options to dhcpcd
+	for opt in ${opts} ; do
+		case "${opt}" in
+			nodns) args="${args} -R" ;;
+			nontp) args="${args} -N" ;;
+			nonis) args="${args} -Y" ;;
+			nogateway) args="${args} -G" ;;
+			nosendhost) args="${args} -h ''";
+		esac
+	done
+
+	# Add our route metric
+	[ "${metric:-0}" != "0" ] && args="${args} -m ${metric}"
+
+	# Bring up DHCP for this interface
+	ebegin "Running dhcpcd"
+
+	eval /sbin/dhcpcd "${args}" "${IFACE}"
+	eend $? || return 1
+
+	_show_address
+	return 0
+}
+
+dhcpcd_stop() {
+	local pidfile="/var/run/dhcpcd-${IFACE}.pid" opts=
+	[ ! -f "${pidfile}" ] && return 0
+
+	# Get our options
+	if [ -x /sbin/dhcpcd ] ; then
+		eval opts=\$dhcp_${IFVAR}
+		[ -z "${opts}" ] && opts=${dhcp}
+	fi
+
+	ebegin "Stopping dhcpcd on ${IFACE}"
+	case " ${opts} " in
+		*" release "*) dhcpcd -k "${IFACE}" ;;
+		*)
+			start-stop-daemon --stop --quiet \
+				--exec /sbin/dhcpcd --pidfile "${pidfile}"
+			;;
+	esac
+	eend $?
+}
+
+# vim: set ts=4 :
diff --git a/net/macchanger.sh b/net/macchanger.sh
new file mode 100644
index 0000000..dce481c
--- /dev/null
+++ b/net/macchanger.sh
@@ -0,0 +1,88 @@
+# Copyright 2004-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+macchanger_depend() {
+	before macnet
+}
+
+_config_vars="$_config_vars mac"
+
+macchanger_pre_start() {
+	# We don't change MAC addresses from background
+	${IN_BACKGROUND} && return 0
+
+	local mac= opts=
+
+	eval mac=\$mac_${IFVAR}
+	[ -z "${mac}" ] && return 0
+
+	_exists true || return 1
+
+	ebegin "Changing MAC address of ${IFACE}"
+
+	# The interface needs to be up for macchanger to work most of the time
+	_down
+	
+	mac=$(echo "${mac}" | tr '[:upper:]' '[:lower:]')
+	case "${mac}" in
+		# specific mac-addr, i wish there were a shorter way to specify this 
+		[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f])
+			# We don't need macchanger to change to a specific mac address
+			_set_mac_address "${mac}"
+			if eend "$?" ; then
+				mac=$(_get_mac_address)
+				eindent
+				einfo "changed to ${mac}"
+				eoutdent
+				return 0
+			fi
+			;;
+
+		# increment MAC address, default macchanger behavior
+		increment) opts="${opts}" ;;
+
+		# randomize just the ending bytes
+		random-ending) opts="${opts} -e" ;;
+
+		# keep the same kind of physical layer (eg fibre, copper)
+		random-samekind) opts="${opts} -a" ;;
+
+		# randomize to any known vendor of any physical layer type
+		random-anykind) opts="${opts} -A" ;;
+
+		# fully random bytes
+		random-full|random) opts="${opts} -r" ;;
+
+		# default case is just to pass on all the options
+		*) opts="${opts} ${mac}" ;;
+	esac
+
+	if [ ! -x /sbin/macchanger ] ; then
+		eerror "For changing MAC addresses, emerge net-analyzer/macchanger"
+		return 1
+	fi
+
+	mac=$(/sbin/macchanger ${opts} "${IFACE}" \
+		| sed -n -e 's/^Faked MAC:.*\<\(..:..:..:..:..:..\)\>.*/\U\1/p' )
+	_up
+
+	# Sometimes the interface needs to be up ....
+	if [ -z "${mac}" ] ; then
+		mac=$(/sbin/macchanger ${opts} "${IFACE}" \
+			| sed -n -e 's/^Faked MAC:.*\<\(..:..:..:..:..:..\)\>.*/\U\1/p' )
+	fi
+
+	if [ -z "${mac}" ] ; then
+		eend 1 "Failed to set MAC address"
+		return 1
+	fi
+
+	eend 0
+	eindent
+	einfo "changed to" "${mac}"
+	eoutdent
+
+	return 0
+}
+
+# vim: set ts=4 :
diff --git a/net/macnet.sh b/net/macnet.sh
new file mode 100644
index 0000000..d8db406
--- /dev/null
+++ b/net/macnet.sh
@@ -0,0 +1,19 @@
+# Copyright 2005-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+macnet_depend() {
+	before rename interface wireless
+	after macchanger
+}
+
+macnet_pre_start() {
+	local mac=$(_get_mac_address 2>/dev/null)
+	[ -z "${mac}" ] && return 0
+
+	vebegin "Configuring ${IFACE} for MAC address ${mac}"
+	mac=$(echo "${mac}" | sed -e 's/://g')
+	_configure_variables "${mac}"
+	veend 0
+}
+
+# vim: set ts=4 :
diff --git a/net/ssidnet.sh b/net/ssidnet.sh
new file mode 100644
index 0000000..379e4d3
--- /dev/null
+++ b/net/ssidnet.sh
@@ -0,0 +1,24 @@
+# Copyright 2004-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+ssidnet_depend() {
+	before interface system
+	after wireless
+}
+
+ssidnet_pre_start() {
+	[ -z "${SSID}" -a -z "${SSIDVAR}" ] && return 0
+
+	local mac=$(_get_ap_mac_address | sed -e 's/://g') x=
+
+	vebegin "Configuring ${IFACE} for SSID ${SSID}"
+	_configure_variables "${mac}" "${SSIDVAR}"
+
+	# Backwards compat for old gateway var
+	eval x=\$gateway_${SSIDVAR}
+	[ -n "${x}" ] && gateway=${x}
+
+	veend 0
+}
+
+# vim: set ts=4 :
diff --git a/net/system.sh b/net/system.sh
new file mode 100644
index 0000000..68abc7f
--- /dev/null
+++ b/net/system.sh
@@ -0,0 +1,106 @@
+# Copyright 2005-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+_config_vars="$_config_vars dns_servers dns_domain dns_search"
+_config_vars="$_config_vars ntp_servers nis_servers nis_domain"
+
+system_depend() {
+	after interface
+	before dhcp
+}
+
+_system_dns() {
+	local servers= domain= search= x=
+
+	eval servers=\$dns_servers_${IFVAR}
+	[ -z "${servers}" ] && servers=${dns_servers}
+
+	eval domain=\$dns_domain_${IFVAR}
+	[ -z "${domain}" ] && domain=${dns_domain}
+
+	eval search=\$dns_search_${IFVAR}
+	[ -z "${search}" ] && search=${dns_search}
+	
+	[ -z "${servers}" -a -z "${domain}" -a -z "${search}" ] && return 0
+
+	local buffer="# Generated by net-scripts for interface ${IFACE}\n"
+	[ -n "${domain}" ] && buffer="${buffer}domain ${domain}\n"
+	[ -n "${search}" ] && buffer="${buffer}search ${search}\n"
+
+	for x in ${servers} ; do
+		buffer="${buffer}nameserver ${x}\n"
+	done
+
+	# Support resolvconf if we have it.
+	if [ -x /sbin/resolvconf ] ; then
+		printf "${buffer}" | resolvconf -a "${IFACE}"
+	else
+		printf "${buffer}" > /etc/resolv.conf
+		chmod 644 /etc/resolv.conf
+	fi
+}
+
+_system_ntp() {
+	local servers= buffer= x=
+
+	eval servers=\$ntp_servers_${IFVAR}
+	[ -z ${servers} ] && servers=${ntp_servers}
+	[ -z ${servers} ] && return 0
+
+	buffer="# Generated by net-scripts for interface ${IFACE}\n"
+	buffer="${buffer}restrict default noquery notrust nomodify\n"
+	buffer="${buffer}restrict 127.0.0.1\n"
+
+	for x in ${servers} ; do
+		buffer="${buffer}restrict ${x} nomodify notrap noquery\n"
+		buffer="${buffer}server ${x}\n"
+	done
+
+	buffer="${buffer}driftfile /var/lib/ntp/ntp.drift\n"
+	buffer="${buffer}logfile /var/log/ntp.log\n"
+
+	printf "${buffer}" > /etc/ntp.conf
+	chmod 644 /etc/ntp.conf
+}
+
+_system_nis() {
+	local servers= domain= x= buffer=
+
+	eval servers=\$nis_servers_${IFVAR}
+	[ -z "${servers}" ] && servers=${nis_servers}
+	
+	eval domain=\$nis_domain_${IFVAR}
+	[ -z "${domain}" ] && domain=${nis_domain}
+	
+	[ -z "${servers}" -a -z "${domain}" ] && return 0
+
+	buffer="# Generated by net-scripts for interface ${iface}\n"
+
+	if [ -n "${domain}" ] ; then
+		hostname -y "${domain}"
+		if [ -n "${servers}" ] ; then
+			for x in ${servers} ; do
+				buffer="${buffer}domain ${domain} server ${x}\n"
+			done
+		else
+			buffer="${buffer}domain ${domain} broadcast\n"
+		fi
+	else
+		for x in ${servers} ; do
+			buffer="${buffer}ypserver ${x}\n"
+		done
+	fi
+
+	printf "${buffer}" > /etc/yp.conf
+	chmod 644 /etc/yp.conf
+}
+
+system_pre_start() {
+	_system_dns
+	_system_ntp 
+	_system_nis 
+
+	return 0
+}
+
+# vim: set ts=4 :
diff --git a/net/wpa_supplicant.sh b/net/wpa_supplicant.sh
new file mode 100644
index 0000000..7ba5bb4
--- /dev/null
+++ b/net/wpa_supplicant.sh
@@ -0,0 +1,164 @@
+# Copyright 2004-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+wpa_supplicant_depend() {
+	program start /sbin/wpa_supplicant
+	after macnet plug
+	before interface
+	provide wireless
+
+	# Prefer us over iwconfig
+	after iwconfig
+}
+
+# Only set these functions if not set already
+# IE, prefer to use iwconfig
+if ! type _get_ssid >/dev/null 2>/dev/null ; then
+_get_ssid() {
+	local timeout=5 ssid=
+
+	while [ ${timeout} -gt 0 ] ;do
+		ssid=$(wpa_cli -i"${IFACE}" status | sed -n -e 's/^ssid=//p')
+		if [ -n "${ssid}" ] ; then
+			echo "${ssid}"
+			return 0
+		fi
+		sleep 1
+		timeout=$((timeout - 1))
+	done
+
+	return 1
+}
+
+_get_ap_mac_address() {
+	wpa_cli -i"${IFACE}" status | sed -n -e 's/^bssid=\(.*\)$/\1/p' \
+		| tr '[:lower:]' '[:upper:]'
+}
+fi
+
+wpa_supplicant_pre_start() {
+	local opts= cfgfile= ctrl_dir=
+
+	_is_wireless || return 0
+
+	# We don't configure wireless if we're being called from
+	# the background unless we're not currently running
+	if [ "${IN_BACKGROUND}" = "true" ] ; then
+		if service_started_daemon "${SVCNAME}" /sbin/wpa_supplicant ; then
+			SSID=$(_get_ssid "${IFACE}")
+			SSIDVAR=$(_shell_var "${SSID}")
+			save_options "SSID" "${SSID}"
+			metric=2000
+		fi
+		return 0
+	fi
+
+	save_options "SSID" ""
+	eval opts=\$wpa_supplicant_${IFVAR}
+	ebegin "Starting wpa_supplicant on" "${IFVAR}"
+
+
+	if [ -x /sbin/iwconfig ] ; then
+		local x=
+		for x in txpower rate rts frag ; do
+			iwconfig "${IFACE}" "${x}" auto 2>/dev/null
+		done
+	fi
+
+	cfgfile=${opts##* -c}
+	if [ -n "${cfgfile}" -a "${cfgfile}" != "${opts}" ] ; then
+		case "${cfgfile}" in
+			" "*) cfgfile=${cfgfile# *} ;;
+		esac
+		cfgfile=${cfgfile%% *}
+	else
+		# Support new and old style locations
+		cfgfile="/etc/wpa_supplicant/wpa_supplicant-${IFACE}.conf"
+		[ ! -e "${cfgfile}" ] \
+			&& cfgfile="/etc/wpa_supplicant/wpa_supplicant.conf"
+		[ ! -e ${cfgfile} ] \
+			&& cfgfile="/etc/wpa_supplicant.conf"
+		opts="${opts} -c ${cfgfile}"
+	fi
+
+	if [ ! -f ${cfgfile} ] ; then
+		eend 1 "/etc/wpa_supplicant/wpa_supplicant.conf not found"
+		return 1
+	fi
+
+	# Work out where the ctrl_interface dir is if it's not specified
+	local ctrl_dir=$(sed -n -e 's/[ \t]*#.*//g;s/[ \t]*$//g;s/^ctrl_interface=//p' "${cfgfile}")
+	if [ -z "${ctrl_dir}" ] ; then
+		ctrl_dir=${opts##* -C}
+		if [ -n "${ctrl_dir}" -a "${ctrl_dir}" != "${opts}" ] ; then
+			case "${ctrl_dir}" in
+				" "*) ctrl_dir=${ctrl_dir# *} ;;
+			esac
+			ctrl_dir=${ctrl_dir%% *}
+		else
+			ctrl_dir="/var/run/wpa_supplicant"
+			opts="${opts} -C ${ctrl_dir}"
+		fi
+	fi
+	save_options ctrl_dir "${ctrl_dir}"
+
+	actfile="/etc/wpa_supplicant/wpa_cli.sh"
+
+	start-stop-daemon --start --exec /sbin/wpa_supplicant \
+		--pidfile "/var/run/wpa_supplicant-${IFACE}.pid" \
+		-- ${opts} -W -B -i "${IFACE}" \
+		-P "/var/run/wpa_supplicant-${IFACE}.pid"
+	eend $? || return 1
+
+	# Starting wpa_supplication-0.4.0, we can get wpa_cli to
+	# start/stop our scripts from wpa_supplicant messages
+	local inact=false
+	service_inactive "${SVCNAME}" && inact=true
+	mark_service_inactive "${SVCNAME}"
+
+	ebegin "Starting wpa_cli on" "${IFACE}"
+	start-stop-daemon --start --exec /bin/wpa_cli \
+		--pidfile "/var/run/wpa_cli-${IFACE}.pid" \
+		-- -a /etc/wpa_supplicant/wpa_cli.sh -p "${ctrl_dir}" -i "${IFACE}" \
+		-P "/var/run/wpa_cli-${IFACE}.pid" -B
+	if eend $? ; then
+		ebegin "Backgrounding ..."
+		exit 1 
+	fi
+
+	# wpa_cli failed to start? OK, error here
+	start-stop-daemon --quiet --stop --exec /sbin/wpa_supplicant \
+		--pidfile "/var/run/wpa_supplicant-${IFACE}.pid"
+	${inact} ||	mark_service_stopped "${SVCNAME}"
+	return 1
+}
+
+wpa_supplicant_post_stop() {
+	if [ "${IN_BACKGROUND}" = "true" ] ; then
+		# Only stop wpa_supplicant if it's not the controlling daemon
+		! service_started_daemon "${SVCNAME}" /sbin/wpa_supplicant 1 
+	fi
+	[ $? != 0 ] && return 0
+
+	local pidfile="/var/run/wpa_cli-${IFACE}.pid"
+	if [ -f ${pidfile} ] ; then
+		ebegin "Stopping wpa_cli on ${IFACE}"
+		start-stop-daemon --stop --exec /bin/wpa_cli \
+			--pidfile "${pidfile}"
+		eend $?
+	fi
+
+	pidfile="/var/run/wpa_supplicant-${IFACE}.pid"
+	if [ -f ${pidfile} ] ; then
+		ebegin "Stopping wpa_supplicant on ${IFACE}"
+		start-stop-daemon --stop --exec /sbin/wpa_supplicant \
+			--pidfile "${pidfile}"
+		eend $?
+	fi
+
+	# If wpa_supplicant exits uncleanly, we need to remove the stale dir
+	[ -S "/var/run/wpa_supplicant/${IFACE}" ] \
+		&& rm -f "/var/run/wpa_supplicant/${IFACE}"
+}
+
+# vim: set ts=4 :