4 files changed, 421 insertions, 0 deletions
diff --git a/usr/libexec/import-state b/usr/libexec/import-state
new file mode 100755
index 00000000..be2d13eb
--- /dev/null
+++ b/usr/libexec/import-state
@@ -0,0 +1,39 @@
+#!/bin/bash
+# import-state: import state files from initramfs (e.g. network config)
+
+# Copy state into root folder:
+# ============================
+cd /run/initramfs/state
+
+IFS_backup=$IFS
+IFS=$'\n'                 # Process find's results line by line
+
+dirs_found=$(find . -type d)
+
+for dir in $dirs_found; do
+  pushd "$dir" > /dev/null
+
+  # Remove initial '.' char from the find's result:
+  dest_dir="${dir/\./}"
+
+  # Create destination folder if it does not exist (with the same rights):
+  if [[ -n "$dest_dir" && ! -d "$dest_dir" ]]; then
+    mkdir -p "$dest_dir"
+    chmod --reference="$PWD" "$dest_dir"
+    chown --reference="$PWD" "$dest_dir"
+  fi
+
+  # Copy all files that are not directory:
+  find . -mindepth 1 -maxdepth 1 -not -type d -exec cp -av -t "$dest_dir" {} \; > /dev/null
+
+  popd > /dev/null
+done
+
+IFS=$IFS_backup
+
+
+# Run restorecon on the copied files:
+# ===================================
+if [ -e /sys/fs/selinux/enforce ] && [ -x /usr/sbin/restorecon ]; then
+    find . -mindepth 1 -print0 | { cd / && xargs --null restorecon -iF; }
+fi
diff --git a/usr/libexec/loadmodules b/usr/libexec/loadmodules
new file mode 100755
index 00000000..5925bdf7
--- /dev/null
+++ b/usr/libexec/loadmodules
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Load other user-defined modules
+for file in /etc/sysconfig/modules/*.modules ; do
+	if [ -x $file ]; then
+		$file
+	fi
+done
+
+# Load modules (for backward compatibility with VARs)
+if [ -f /etc/rc.modules ]; then
+	/etc/rc.modules
+fi
diff --git a/usr/libexec/netconsole b/usr/libexec/netconsole
new file mode 100755
index 00000000..48f9bbf4
--- /dev/null
+++ b/usr/libexec/netconsole
@@ -0,0 +1,165 @@
+#!/bin/bash
+# 
+# netconsole 	This loads the netconsole module with the configured parameters.
+#
+# chkconfig: - 50 50
+# description: Initializes network console logging
+# config: /etc/sysconfig/netconsole
+#
+### BEGIN INIT INFO
+# Provides:          netconsole
+# Required-Start:    $network
+# Required-Stop:     $network
+# Short-Description: Initializes network console logging
+# Description:       Initializes network console logging of kernel messages.
+### END INIT INFO
+
+# Copyright 2002 Red Hat, Inc.
+#
+# Based in part on a shell script by
+# Andreas Dilger <adilger@turbolinux.com>  Sep 26, 2001
+
+PATH=/sbin:/usr/sbin:$PATH
+RETVAL=0
+SERVER_ADDRESS_RESOLUTION=
+
+# Check that networking is up.
+. /etc/sysconfig/network
+
+# Source function library.
+. /etc/rc.d/init.d/functions
+
+# Default values
+LOCALPORT=6666
+DEV=
+
+SYSLOGADDR=
+SYSLOGPORT=514
+SYSLOGMACADDR=
+
+kernel=$(uname -r | cut -d. -f1-2)
+
+usage ()
+{
+	gprintf "Usage: %s {start|stop|status|restart|condrestart}\n" $0 1>&2
+	RETVAL=2
+}
+
+print_address_info ()
+{
+	local host=$1
+	local route via target
+
+	route=$(LANG=C ip -o route get to $host/32)
+	
+	[ -z "$DEV" ] && DEV=$(echo $route | sed "s|.* dev \([^ ]*\).*|\1|")
+	echo "DEV=$DEV"
+	echo "LOCALADDR=$(echo $route | sed "s|.* src \([^ ]*\).*|\1|")"
+	if [[ $route == *" via "* ]] ; then
+		via=$(echo $route | sed "s|.* via \([^ ]*\).*|\1|")
+		target=$via
+	else
+		target=$host
+	fi
+	if [ -z "$SYSLOGMACADDR" ]; then
+		arp=$(LANG=C /sbin/arping -f -c 1 -I $DEV $target 2>/dev/null | awk '/ reply from .*[.*]/ { print gensub(".* reply from .* \\[(.*)\\].*","\\1","G"); exit }')
+		[ -n "$arp" ] && echo "SYSLOGMACADDR=$arp"
+	fi	
+}	
+	
+start ()
+{
+	[ -f /etc/sysconfig/netconsole ] || exit 6
+	. /etc/sysconfig/netconsole
+
+	SYSLOGOPTS=
+	# syslogd server, if any
+	if [ -n "$SYSLOGADDR" ]; then
+		# IPv6 regex also covers 4to6, zero-compressed, and link-local addresses with zone-index addresses.
+		# It should also cover IPv4-embedded, IPv4-mapped, and IPv4-translated IPv6 addresses.
+		# Taken from: http://stackoverflow.com/a/17871737/3481531
+		IPv4_regex="^([0-9]{1,3}\.){3}[0-9]{1,3}$"
+		IPv6_regex="^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$"
+		if ! [[ "$SYSLOGADDR" =~ $IPv4_regex ]] && ! [[ "$SYSLOGADDR" =~ $IPv6_regex ]]; then
+			# Use IPv4 by default:
+			SYSLOGADDR="$(LANG=C getent ahostsv4 $SYSLOGADDR 2> /dev/null)"
+
+			# Try IPv6 in case IPv4 resolution has failed:
+			if [[ $? -eq 2 ]]; then
+				SYSLOGADDR="$(LANG=C getent ahostsv6 $SYSLOGADDR 2> /dev/null)"
+			fi
+
+			if [[ $? -ne 0 ]]; then
+				echo $"Unable to resolve IP address specified in /etc/sysconfig/netconsole" 1>&2
+				exit 6
+			fi
+
+			SYSLOGADDR="$(echo "$SYSLOGADDR" | head -1 | cut --delimiter=' ' --fields=1)"
+		fi
+	fi
+	if [ -z "$SYSLOGADDR" ] ; then
+		gprintf "Server address not specified in /etc/sysconfig/netconsole\n" 1>&2
+		exit 6
+	fi
+	eval $(print_address_info $SYSLOGADDR)
+	
+	if [ -z "$SYSLOGMACADDR" ]; then
+		gprintf "netconsole: can't resolve MAC address of %s\n" $SYSLOGADDR 1>&2
+		exit 1
+	fi
+
+	SYSLOGOPTS="netconsole=$LOCALPORT@$LOCALADDR/$DEV,$SYSLOGPORT@$SYSLOGADDR/$SYSLOGMACADDR "
+
+	/usr/bin/logger -p daemon.info -t netconsole: inserting netconsole module with arguments \
+	$SYSLOGOPTS
+	if [ -n "$SYSLOGOPTS" ]; then
+		action "Initializing netconsole" modprobe netconsole \
+			$SYSLOGOPTS
+		[ "$?" != "0" ] && RETVAL=1
+	fi
+	touch /var/lock/subsys/netconsole
+}
+
+stop ()
+{
+	if /sbin/lsmod | grep netconsole >/dev/null 2>&1 ; then
+	    action "Disabling netconsole" rmmod netconsole;
+	    [ "$?" != "0" ] && RETVAL=1
+	fi
+
+	rm -f /var/lock/subsys/netconsole
+}
+
+status ()
+{
+	if /sbin/lsmod | grep netconsole >/dev/null 2>&1 ; then
+		gprintf "netconsole module loaded\n"
+		RETVAL=0
+	else
+		gprintf "netconsole module not loaded\n"
+		RETVAL=3
+	fi
+}
+
+
+restart ()
+{
+	stop
+	start
+}
+
+condrestart ()
+{
+	[ -e /var/lock/subsys/netconsole ] && restart
+}
+
+
+case "$1" in
+    stop) stop ;;
+    status) status ;;
+    start|restart|reload|force-reload) restart ;;
+    condrestart) condrestart ;;
+    *) usage ;;
+esac
+
+exit $RETVAL
diff --git a/usr/libexec/readonly-root b/usr/libexec/readonly-root
new file mode 100755
index 00000000..9b9c2824
--- /dev/null
+++ b/usr/libexec/readonly-root
@@ -0,0 +1,204 @@
+#!/bin/bash
+#
+# Set up readonly-root support.
+#
+
+. /etc/init.d/functions
+
+# We need to initialize the $HOSTNAME variable by ourselves now:
+# (It was previously done for RHEL-6 branch, but got lost in time.)
+HOSTNAME="$(hostname)"
+
+# Check SELinux status
+SELINUX_STATE=
+if [ -e "/sys/fs/selinux/enforce" ] && [ "$(cat /proc/self/attr/current | tr -d '\000' )" != "kernel" ]; then
+	if [ -r "/sys/fs/selinux/enforce" ] ; then
+		SELINUX_STATE=$(cat "/sys/fs/selinux/enforce")
+	else
+		# assume enforcing if you can't read it
+		SELINUX_STATE=1
+	fi
+fi
+
+selinux_fixup() {
+	if [ -n "$SELINUX_STATE" ] && [ -e "$1" ]; then
+		restorecon -R "$1"
+	fi
+}
+
+# Only read this once.
+[ -z "${cmdline}" ] && cmdline=$(cat /proc/cmdline)
+
+READONLY=
+if [ -f /etc/sysconfig/readonly-root ]; then
+	. /etc/sysconfig/readonly-root
+fi
+if strstr "$cmdline" readonlyroot ; then
+	READONLY=yes
+	[ -z "$RW_MOUNT" ] && RW_MOUNT=/var/lib/stateless/writable
+	[ -z "$STATE_MOUNT" ] && STATE_MOUNT=/var/lib/stateless/state
+fi
+if strstr "$cmdline" noreadonlyroot ; then
+	READONLY=no
+fi
+
+MOUNTS=()
+if is_true "$READONLY" || is_true "$TEMPORARY_STATE"; then
+
+        add_mount() {
+                mnt=${1%/}
+                MOUNTS=("${MOUNTS[@]}" "$mnt")
+        }
+
+        cp_empty() {
+                if [ -e "$1" ]; then
+			echo "$1" | cpio -p -vd "$RW_MOUNT" &>/dev/null
+                        add_mount $1
+		fi
+        }
+
+        cp_dirs() {
+		if [ -e "$1" ]; then
+			mkdir -p "$RW_MOUNT$1"
+			find "$1" -type d -print0 | cpio -p -0vd "$RW_MOUNT" &>/dev/null
+                        add_mount $1
+		fi
+	}
+
+        cp_files() {
+		if [ -e "$1" ]; then
+			cp -a --parents "$1" "$RW_MOUNT"
+                        add_mount $1
+		fi
+	}
+
+	# Common mount options for scratch space regardless of
+	# type of backing store
+	mountopts=
+
+	# Scan partitions for local scratch storage
+	rw_mount_dev=$(blkid -t LABEL="$RW_LABEL" -l -o device)
+
+        bindmountopts=
+        is_true "$SLAVE_MOUNTS" && bindmountopts="--make-slave"
+
+	# First try to mount scratch storage from /etc/fstab, then any
+	# partition with the proper label.  If either succeeds, be sure
+	# to wipe the scratch storage clean.  If both fail, then mount
+	# scratch storage via tmpfs.
+	if mount $mountopts "$RW_MOUNT" > /dev/null 2>&1 ; then
+		rm -rf "$RW_MOUNT" > /dev/null 2>&1
+	elif [ x$rw_mount_dev != x ] && mount $rw_mount_dev $mountopts "$RW_MOUNT" > /dev/null 2>&1; then
+		rm -rf "$RW_MOUNT"  > /dev/null 2>&1
+	else
+		mount -n -t tmpfs $RW_OPTIONS $mountopts none "$RW_MOUNT"
+	fi
+
+	for file in /etc/rwtab /etc/rwtab.d/* /run/initramfs/rwtab ; do
+		is_ignored_file "$file" && continue
+	[ -f $file ] && while read type path ; do
+			case "$type" in
+				empty)
+					cp_empty $path
+					;;
+				files)
+					cp_files $path
+					;;
+				dirs)
+					cp_dirs $path
+					;;
+				*)
+					;;
+			esac
+                done < <(cat $file)
+	done
+
+        for m in "${MOUNTS[@]}"; do
+                prefix=0
+                for mount_point in "${MOUNTS[@]}"; do
+                        [[ $m = $mount_point ]] && continue
+                        if [[ $m =~ ^$mount_point/.* ]] ; then
+                                prefix=1
+                                break
+                        fi
+                done
+                [[ $prefix -eq 1 ]] && continue
+
+                mount -n --bind $bindmountopts "$RW_MOUNT$m" "$m"
+	        selinux_fixup "$m"
+        done
+
+	# Use any state passed by initramfs
+	[ -d /run/initramfs/state ] && cp -a /run/initramfs/state/* $RW_MOUNT
+
+	# In theory there should be no more than one network interface active
+	# this early in the boot process -- the one we're booting from.
+	# Use the network address to set the hostname of the client.  This
+	# must be done even if we have local storage.
+	ipaddr=
+	if [ "$HOSTNAME" = "localhost" -o "$HOSTNAME" = "localhost.localdomain" ]; then
+		ipaddr=$(ip addr show to 0.0.0.0/0 scope global | awk '/[[:space:]]inet / { print gensub("/.*","","g",$2) }')
+		for ip in $ipaddr ; do
+			HOSTNAME=
+			eval $(ipcalc -h $ipaddr 2>/dev/null)
+			[ -n "$HOSTNAME" ] && { hostname ${HOSTNAME} ; break; }
+		done
+	fi
+	
+	# Clients with read-only root filesystems may be provided with a
+	# place where they can place minimal amounts of persistent
+	# state.  SSH keys or puppet certificates for example.
+	#
+	# Ideally we'll use puppet to manage the state directory and to
+	# create the bind mounts.  However, until that's all ready this
+	# is sufficient to build a working system.
+
+	# First try to mount persistent data from /etc/fstab, then any
+	# partition with the proper label, then fallback to NFS
+	state_mount_dev=$(blkid -t LABEL="$STATE_LABEL" -l -o device)
+	if mount $mountopts $STATE_OPTIONS "$STATE_MOUNT" > /dev/null 2>&1 ; then
+		/bin/true
+	elif [ x$state_mount_dev != x ] && mount $state_mount_dev $mountopts "$STATE_MOUNT" > /dev/null 2>&1;  then
+		/bin/true
+	elif [ ! -z "$CLIENTSTATE" ]; then
+		# No local storage was found.  Make a final attempt to find
+		# state on an NFS server.
+
+		mount -t nfs $CLIENTSTATE/$HOSTNAME $STATE_MOUNT -o rw,nolock
+	fi
+
+	if [ -w "$STATE_MOUNT" ]; then
+
+		mount_state() {
+			if [ -e "$1" ]; then
+				[ ! -e "$STATE_MOUNT$1" ] && cp -a --parents "$1" "$STATE_MOUNT"
+				mount -n --bind $bindmountopts "$STATE_MOUNT$1" "$1"
+			fi
+		}
+
+		for file in /etc/statetab /etc/statetab.d/* ; do
+			is_ignored_file "$file" && continue
+			[ ! -f "$file" ] && continue
+
+			if [ -f "$STATE_MOUNT/$file" ] ; then
+				mount -n --bind $bindmountopts "$STATE_MOUNT/$file" "$file"
+			fi
+
+			for path in $(grep -v "^#" "$file" 2>/dev/null); do
+				mount_state "$path"
+				selinux_fixup "$path"
+			done
+		done
+
+		if [ -f "$STATE_MOUNT/files" ] ; then
+			for path in $(grep -v "^#" "$STATE_MOUNT/files" 2>/dev/null); do
+				mount_state "$path"
+				selinux_fixup "$path"
+			done
+		fi
+	fi
+
+        if mount | grep -q /var/lib/nfs/rpc_pipefs ; then
+                mount -t rpc_pipefs sunrpc /var/lib/nfs/rpc_pipefs
+        fi
+fi