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, 251 insertions, 0 deletions

diff --git a/sh.Linux/init.sh b/sh.Linux/init.sh
new file mode 100755
index 0000000..fc19bdd
--- /dev/null
+++ b/sh.Linux/init.sh
@@ -0,0 +1,251 @@
+#!/bin/sh
+# Copyright 1999-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+# void single_user()
+#
+#  Drop to a shell, remount / ro, and then reboot
+#
+single_user() {
+	if [ "${RC_SYS}" = "VPS" ] ; then
+		einfo "Halting"
+		halt -f
+		return
+	fi
+	
+	sulogin ${CONSOLE}
+	einfo "Unmounting filesystems"
+	if [ -c /dev/null ] ; then
+		mount -a -o remount,ro 2>/dev/null
+	else
+		mount -a -o remount,ro
+	fi
+	einfo "Rebooting"
+	reboot -f
+}
+
+# This basically mounts $svcdir as a ramdisk, but preserving its content
+# which allows us to run depscan.sh
+# The tricky part is finding something our kernel supports
+# tmpfs and ramfs are easy, so force one or the other
+mount_svcdir() {
+	local fs= fsopts="-o rw,noexec,nodev,nosuid" devdir="none" devtmp="none" x=
+	local svcsize=${svcsize:-1024}
+	local mntcmd=$(fstabinfo --mount-cmd "${RC_LIBDIR}")
+
+	if grep -Eq "[[:space:]]+tmpfs$" /proc/filesystems ; then
+		fs="tmpfs"
+		fsopts="${fsopts},mode=0755,size=${svcsize}k"
+	elif grep -Eq "[[:space:]]+ramfs$" /proc/filesystems ; then
+		fs="ramfs"
+		fsopts="${fsopts},mode=0755,size=${svcsize}k"
+	elif [ -e /dev/ram0 -a -e /dev/ram1 ] \
+		&& grep -Eq "[[:space:]]+ext2$" /proc/filesystems ; then
+		devdir="/dev/ram0"
+		devtmp="/dev/ram1"
+		fs="ext2"
+		for x in ${devdir} ${devtmp} ; do
+			try dd if=/dev/zero of="${x}" bs=1k count="${svcsize}"
+			try mkfs -t "${fs}" -i 1024 -vm0 "${x}" "${svcsize}"
+		done
+	else
+		echo
+		eerror "Gentoo Linux requires tmpfs, ramfs or 2 ramdisks + ext2"
+		eerror "compiled into the kernel"
+		echo
+		single_user
+	fi
+
+	# If we have no entry in fstab for $svcdir, provide our own
+	if [ -z "${mntcmd}" ] ; then
+		mntcmd="-t ${fs} ${fsopts} ${devdir} ${RC_SVCDIR}"
+	fi
+
+	local dotmp=false
+	if [ -e "${RC_SVCDIR}"/deptree ] ; then
+		dotmp=true
+		try mount -n -t "${fs}" -o rw "${devtmp}" "${RC_LIBDIR}"/tmp
+		cp -p "${RC_SVCDIR}"/deptree "${RC_SVCDIR}"/nettree \
+			"${RC_LIBDIR}"/tmp 2>/dev/null
+	fi
+	try mount -n ${mntcmd}
+	if ${dotmp} ; then
+		cp -p "${RC_LIBDIR}"/tmp/deptree "${RC_LIBDIR}"/tmp/nettree \
+			"${RC_SVCDIR}" 2>/dev/null
+		try umount -n "${RC_LIBDIR}"/tmp
+	fi
+}
+
+_RC_GET_KV_CACHE=""
+get_KV() {
+	[ -z "${_RC_GET_KV_CACHE}" ] \
+		&& _RC_GET_KV_CACHE="$(uname -r)"
+
+	echo "$(KV_to_int "${_RC_GET_KV_CACHE}")"
+
+	return $?
+}
+
+# Try and set a font as early as we can
+ttydev=${CONSOLE:-/dev/tty1}
+if [ -c "${ttydev}" ] ; then
+	ttydev="-C ${ttydev}"
+else
+	[ -c /dev/vc/1 ] && ttydev="-C /dev/vc/1" || ttydev=
+fi
+[ -r "${RC_LIBDIR}"/console/font ] \
+	&& /bin/setfont ${ttydev} "${RC_LIBDIR}"/console/font
+[ -r "${RC_LIBDIR}"/console/map ] \
+	&& /bin/setfont ${ttydev} -m "${RC_LIBDIR}"/console/map
+[ -r "${RC_LIBDIR}"/console/unimap ] \
+	&& /bin/setfont ${ttydev} -u "${RC_LIBDIR}"/console/unimap
+unset ttydev
+
+. /etc/init.d/functions.sh
+. "${RC_LIBDIR}"/sh/init-functions.sh
+. "${RC_LIBDIR}"/sh/rc-functions.sh
+
+# Set the console loglevel to 1 for a cleaner boot
+# the logger should anyhow dump the ring-0 buffer at start to the
+# logs, and that with dmesg can be used to check for problems
+${RC_DMESG_LEVEL+/bin/dmesg -n ${RC_DMESG_LEVEL}}
+
+check_statedir /proc
+
+# By default VServer already has /proc mounted, but OpenVZ does not!
+if [ ! -e /proc/self/stat ] ; then
+	procfs="proc"
+	[ "${RC_UNAME}" = "GNU/kFreeBSD" ] && proc="linprocfs"
+	ebegin "Mounting ${procfs} at /proc"
+	mntcmd="$(fstabinfo --mount-cmd /proc)"
+	try mount -n ${mntcmd:--t ${procfs} -o noexec,nosuid,nodev proc /proc}
+	eend $?
+fi
+
+# Read off the kernel commandline to see if there's any special settings
+# especially check to see if we need to set the  CDBOOT environment variable
+# Note: /proc MUST be mounted
+if [ -r /sbin/livecd-functions.sh ] ; then
+	. /sbin/livecd-functions.sh
+	livecd_read_commandline
+fi
+
+[ "$(KV_to_int "$(uname -r)")" -ge "$(KV_to_int "2.6.0")" ]
+K26=$?
+
+if [ "${RC_UNAME}" != "GNU/kFreeBSD" -a "${RC_NAME}" != "VPS" -a "${K26}" = "0" ] ; then
+	if [ -d /sys ] ; then
+		ebegin "Mounting sysfs at /sys"
+		mntcmd="$(fstabinfo --mount-cmd /sys)"
+		try mount -n ${mntcmd:--t sysfs -o noexec,nosuid,nodev sysfs /sys}
+		eend $?
+	else
+		ewarn "No /sys to mount sysfs needed in 2.6 and later kernels!"
+	fi
+fi
+
+check_statedir /dev
+
+devfs_mounted=
+if [ -e /dev/.devfsd ] ; then
+	# make sure devfs is actually mounted and it isnt a bogus file
+	devfs_mounted=$(mountinfo --fstype-regex devfs)
+fi
+
+# Try to figure out how the user wants /dev handled
+#  - check $RC_DEVICES from /etc/conf.d/rc
+#  - check boot parameters
+#  - make sure the required binaries exist
+#  - make sure the kernel has support
+if [ "${RC_DEVICES}" = "static" -o "${RC_SYS}" = "VPS" ] ; then
+	ebegin "Using existing device nodes in /dev"
+	eend 0
+elif [ "${RC_UNAME}" = "GNU/kFreeBSD" ] ; then
+	ebegin "Using kFreeBSD devfs in /dev"
+	eend 0
+else
+	fellback_to_devfs="no"
+	case "${RC_DEVICES}" in
+		devfs)	devfs="yes"
+				udev="no"
+				;;
+		udev)	devfs="yes"
+				udev="yes"
+				fellback_to_devfs="yes"
+				;;
+		auto|*)	devfs="yes"
+				udev="yes"
+				;;
+	esac
+
+	# Check udev prerequisites and kernel params
+	if [ "${udev}" = "yes" ] ; then
+		if get_bootparam "noudev" || ! has_addon udev-start || \
+			[ -n "${devfs_mounted}" -o "${K26}" != 0 ] ; then
+			udev="no"
+		fi
+	fi
+
+	# Check devfs prerequisites and kernel params
+	if [ "${devfs}" = "yes" ] ; then
+		if get_bootparam "nodevfs" || ! has_addon devfs-start ||
+		   [ "${udev}" = "yes" -o ! -r /proc/filesystems ] ; then
+			devfs="no"
+		elif ! grep -Eq "[[:space:]]+devfs$" /proc/filesystems ; then
+			devfs="no"
+		fi
+	fi
+
+	# Actually start setting up /dev now
+	if [ "${udev}" = "yes" ] ; then
+		start_addon udev
+
+	# With devfs, /dev can be mounted by the kernel ...
+	elif [ "${devfs}" = "yes" ] ; then
+		start_addon devfs
+
+		# Did the user want udev in the config file but for 
+		# some reason, udev support didnt work out ?
+		if [ "${fellback_to_devfs}" = "yes" ] ; then
+			ewarn "You wanted udev but support for it was not available!"
+			ewarn "Please review your system after it's booted!"
+		fi
+	fi
+
+	# OK, if we got here, things are probably not right :)
+	if [ "${devfs}" = "no" -a "${udev}" = "no" ] ; then
+		:
+	fi
+fi
+
+# From linux-2.6 we need to mount /dev/pts again ...
+if [ "${RC_UNAME}" != "GNU/kFreeBSD" -a "${K26}" = "0" ] ; then
+	if grep -Eq "[[:space:]]+devpts$" /proc/filesystems && \
+		! mountinfo /dev/pts > /dev/null ; then
+		if [ ! -d /dev/pts ] && \
+		   [ "${devfs}" = "yes" -o "${udev}" = "yes" ] ; then
+			# Make sure we have /dev/pts
+			mkdir -p /dev/pts >/dev/null 2>/dev/null || \
+				ewarn "Could not create /dev/pts!"
+		fi
+
+		if [ -d /dev/pts ] ; then
+			ebegin "Mounting devpts at /dev/pts"
+			mntcmd="$(fstabinfo --mount-cmd /dev/pts)"
+			try mount -n ${mntcmd:--t devpts -o gid=5,mode=0620,noexec,nosuid devpts /dev/pts}
+			eend $?
+		fi
+	fi
+fi
+
+# If booting off CD, we want to update inittab before setting the runlevel
+if [ -f /sbin/livecd-functions.sh -a -n "${CDBOOT}" ] ; then
+	ebegin "Updating inittab"
+	livecd_fix_inittab
+	eend $?
+	/sbin/telinit q &>/dev/null
+fi
+
+. "${RC_LIBDIR}"/sh/init-common-post.sh
+
+# vim: set ts=4 :