From 3d2b5087e84c3a84348c5b019aec3029f1228bcf Mon Sep 17 00:00:00 2001 From: johndah4x0r Date: Fri, 28 Jul 2017 14:03:55 +0200 Subject: [PATCH] Delete livekitlib --- bootfiles/livekitlib | 784 ------------------------------------------- 1 file changed, 784 deletions(-) delete mode 100644 bootfiles/livekitlib diff --git a/bootfiles/livekitlib b/bootfiles/livekitlib deleted file mode 100644 index 4d8396e..0000000 --- a/bootfiles/livekitlib +++ /dev/null @@ -1,784 +0,0 @@ -#!/bin/sh - -# Functions library :: for Linux Live Kit scripts -# Original author: Tomas M. -# Modified by: 'JohnDaH4x0r' - -# related to build script -# get_exclude: Generate exclude arguments for 'mksquashfs' -# $1: the exclude list ("$EXCLUDE", if you use .config) - -get_exclude() -{ - EXCLUDE_LIST="$1" - PARENT_DIR="$(echo "$2" | tr -s "/")" - - if [ -z "$PARENT_DIR" ]; then - return 1 - elif [ "$PARENT_DIR" = "/" ]; then - return 1 - fi - - echo "$EXCLUDE_LIST" | tr " " "\n" | grep "$PARENT_DIR" \ - | while read KEY; do - echo -n "-e $KEY " - done -} - -# NOTE: DO NOT TOUCH THE ESCAPE CHARACTERS! -BLUE="" -YELLOW="" -ORANGE="" -GREEN="" -BOLD="" -RED="" -NC="" - -# debug related -debug_start() -{ - if grep -q 'debug' /proc/cmdline; then - DEBUG_IS_ENABLED=1 - else - DEBUG_IS_ENABLED= - fi -} - -dbg_shell_start() -{ - if grep -q 'dbg_shell' /proc/cmdline; then - DBG_SHELL=1 - else - DBG_SHELL= - fi -} - -debug_log() -{ - if [ "$DEBUG_IS_ENABLED" ]; then - echo "[${GREEN}"' debug '"${NC}]: $@" >&2 - log "debug_log: $*" - fi -} - -# echo related functions - -# echo fatal tag -# $1 = text to show -echo_fatal() -{ - echo "[${RED}"' fatal '"${NC}] $@" >&2 -} - -# echo bold -# $1 = text to show -# -echo_bold() -{ - echo "$BOLD""$@""$NC" -} - -# echo livekit tag -echo_livekit() -{ - echo "[${BLUE}"'livekit'"${NC}] " -} - -echo_livekit_msg() -{ - echo "[${BLUE}"'livekit'"${NC}] $@" -} - -# echo error -echo_err() -{ - echo "[${RED}"' error '"${NC}] $@" >&2 -} - -# echo warn -echo_warn() -{ - echo "[${YELLOW}"' warn! '"${NC}] $@" >&2 -} - -# echo signature -echo_sign() -{ - echo "${BOLD}"' Linux Live Kit Improved v1.0 - '"$* ${NC}" -} - -# log - store given text in /var/log/livedbg -log() -{ - echo "$@" 2>/dev/null >>/var/log/livekit-log -} - -echolog() -{ - echo "$@" - log "echolog: $@" -} - -# show information about the debug shell -show_debug_banner() -{ - echo_sign "DEBUGGING MODE" - echo "The root shell is prepared for you!" >&2 - echo "Type your desired commands or press Ctrl-D to continue booting." >&2 - echo >&2 -} - -# debug_shell -# executed when debug boot parameter is present -# -debug_shell() -{ - if [ "$DBG_SHELL" ]; then - show_debug_banner - setsid sh -c 'exec sh < /dev/tty1 >/dev/tty1 2>&1' - echo - fi -} - -fatal() -{ - log "FatalError: $@" - echo_fatal "$@" - echo_sign "EMERGENCY MODE" >&2 - echo_bold "Please consult /var/log/livekit-log for more info." >&2 - setsid sh -c 'exec sh < /dev/tty1 >/dev/tty1 2>&1' -} - - -# test if the script is started by root user. If not, exit -# -allow_only_root() -{ - if [ "0$UID" -ne 0 ]; then - echo_err "Only root can run $(basename $0)"; exit 1 - fi -} - -# Make bundle -# call mksquashfs with apropriate arguments -# $1 = directory which will be compressed to squashfs bundle -# $2 = output file -# $3..$9 = optional arguments like -keep-as-directory or -b 123456789 -# -mkbund() -{ - debug_log "mkbund" "$*" - - if [ -e "$2" ]; then - echo_warn "mkbund: $(basename $2): File already exists!" - echo_warn "mkbund: $(basename $2): Deleting file..." - rm -f "$2" - else - echo_livekit_msg "mkbund: $(basename $2): Making new bundle..." - fi - - echo_livekit_msg "mkbund: SquashFS compression: 1024k - XZ" >&2 - echo_livekit_msg "mkbund: $(basename $2): Compressing bundle..." >&2 - mksquashfs "$1" "$2" -comp xz -b 1024k $3 $4 $5 $6 $7 $8 $9 >/dev/null || \ - (echo_err "mkbund: Failed to make bundle!" && exit 1) -} - -# Now, for the Live Kit system-related stuff - -# get value of kernel cmdline parameter $1 -# $1 = parameter to search for -# -cmdline_value() -{ - cat /proc/cmdline | egrep -o "(^|[[:space:]])$1=[^[:space:]]+" | \ - tr -d " " | cut -d "=" -f 2- | tail -n 1 -} - - -# Move entire initramfs tree to tmpfs mount. -# It's a bit tricky but is necessray to enable pivot_root -# even for initramfs boot image -# -transfer_initramfs() -{ - if [ ! -r /lib/esc_initramfs.sgn ]; then - echo_livekit >&2 - echo "Switching root from initramfs to tmpfs..." >&2 - SWITCH=/m # one letter directory - mkdir -p $SWITCH - mount -t tmpfs -o size="100%" tmpfs "$SWITCH" - cp -a /??* "$SWITCH" 2>/dev/null # only copy two-and-more-letter directories - cd $SWITCH - echo "This file indicates that we successfully escaped initramfs" >"$SWITCH"/lib/esc_initramfs.sgn - exec switch_root -c /dev/console . "$0" - fi -} - -# mount virtual filesystems like proc, sys and such -# -init_proc_sysfs() -{ - debug_log "init_proc_sysfs" "$*" - mkdir -p /proc /sys /etc "$MEMORY" - mount -n -t proc proc /proc - echo "0" >/proc/sys/kernel/printk - mount -n -t sysfs sysfs /sys - mount -n -o remount,rw rootfs / - ln -sf /proc/mounts /etc/mtab -} - - -# modprobe all modules found in initial ramdisk -modprobe_everything() -{ - debug_log "modprobe_everything" "$*" - - echo_livekit_msg "Probing for hardware..." >&2 - - find /lib/modules/ | fgrep '.ko' | xargs -n 1 modprobe 2>/dev/null - refresh_devs -} - - -refresh_devs() -{ - debug_log "refresh_devs" "$*" - if [ -r /proc/sys/kernel/hotplug ]; then - echo /sbin/mdev > /proc/sys/kernel/hotplug - fi - mdev -s -} - -# make sure some devices are there -init_devs() -{ - debug_log "init_devs" "$*" - modprobe zram 2>/dev/null - modprobe loop 2>/dev/null - modprobe squashfs 2>/dev/null - modprobe fuse 2>/dev/null - refresh_devs -} - -# Activate zram (auto-compression of RAM) -# Compressed RAM consumes 1/2 or even 1/4 of original size -# Setup static size of 500MB -# -init_zram() -{ - debug_log "init_zram" "$*" - echo_livekit_msg "Setting up ZRAM as swap if available..." - if [ -r /sys/block/zram0/disksize ]; then - echo 536870912 > /sys/block/zram0/disksize # 512MB - mkswap /dev/zram0 >/dev/null - swapon /dev/zram0 -p 32767 - echo 100 > /proc/sys/vm/swappiness - fi -} - -# load the AUFS kernel module if needed -# -init_aufs() -{ - debug_log "init_aufs" "$*" - - # Prepare for error messages - echo >>/var/log/livkekit-log - - modprobe aufs 2>/var/log/livekit-log - - # If aufs module failed to load, panic immidiately - if [ $? -ne 0 ]; then - fatal "Failed to load AUFS module!" - fi - - # finally, refresh all devices - refresh_devs -} - -# Setup empty union -# $1 = changes directory (ramfs or persistent changes) -# $2 = union directory where to mount the union -# -init_union() -{ - debug_log "init_union" "$*" - - echo_livekit_msg "Initialising AUFS union..." - mkdir -p "$1" - mkdir -p "$2" - - # Prepare for error messages - echo >>/var/log/livekit-log - - mount -t aufs -o xino="/.xino",trunc_xino,br="$1" aufs "$2" >/var/log/livekit-log 2>&1 - - # If failed to init union, panic - if [ $? -ne 0 ]; then - fatal "Failed to initialise AUFS union!" - fi -} - -# Return device mounted for given directory -# $1 = directory -# -mounted_device() -{ - debug_log "mounted_device" "$*" - - local MNT TARGET - MNT="$1" - while [ "$MNT" != "/" -a "$MNT" != "." -a "$MNT" != "" ]; do - TARGET="$(grep -F " $MNT " /proc/mounts | cut -d " " -f 1)" - if [ "$TARGET" != "" ]; then - echo "$TARGET" - return - fi - MNT="$(dirname "$MNT")" - done -} - -# Return mounted dir for given directory -# $1 = directory -# -mounted_dir() -{ - debug_log "mounted_dir" "$*" - - local MNT - MNT="$1" - while [ "$MNT" != "/" -a "$MNT" != "." -a "$MNT" != "" ]; do - if mountpoint -q "$MNT" 2>/dev/null; then - echo "$MNT" - return - fi - MNT="$(dirname "$MNT")" - done -} - -# Make sure to mount FAT12/16/32 using vfat -# in order to support long filenames -# $1 = device -# -device_bestfs() -{ - debug_log "device_bestfs" "$*" - local FS - - FS="$(blkid "$1" | sed -r "s/.*TYPE=//" | tr -d '"' | \ - tr "[A-Z]" "[a-z]" | cut -d ' ' -f 1)" - if [ "$FS" = "msdos" -o "$FS" = "fat" ]; then - FS="vfat" - elif [ "$FS" = "ntfs" ]; then - FS="ntfs-3g" - else - FS="$FS" - fi - echo "-t $FS" -} - -# Filesystem options for mount -# $1 = filesystem or '-t filesystem' -# -fs_options() -{ - debug_log "fs_options" "$*" - - if [ "$1" = "-t" ]; then - shift - fi - if [ "$1" = "vfat" ]; then - echo "-o check=s,shortname=mixed,iocharset=utf8" - fi -} - - -# Modprobe network kernel modules until a working driver is found. -# These drivers are (or used to be) probed in Slackware's initrd. -# The function returns the first device found, yet it doesn't have -# to be a working one, eg. if the computer has two network interfaces -# and ethernet cable is plugged only to one of them. -# -init_network_dev() -{ - debug_log "init_network_dev" "$*" - echo_livekit_msg "Preparing networking device(s)..." >&2 - local MODULE ETH - - for MODULE in 3c59x acenic de4x5 e1000 e1000e e100 epic100 hp100 \ - ne2k-pci pcnet32 8139too 8139cp tulip via-rhine r8169 atl1e yellowfin \ - tg3 dl2k ns83820 atl1 b44 bnx2 skge sky2 tulip depca 3c501 3c503 \ - 3c505 3c507 3c509 3c515 ac3200 at1700 cosa cs89x0 de600 de620 e2100 \ - eepro eexpress eth16i ewrk3 forcedeth hostess_sv11 hp-plus hp ni52 \ - ni65 sb1000 sealevel smc-ultra sis900 smc9194 wd; do - modprobe $MODULE 2>/dev/null - ETH="$(cat /proc/net/dev | grep : | grep -v lo: | cut -d : -f 1 | tr -d " " | head -n 1)" - if [ "$ETH" != "" ]; then - echo "$ETH" - return 0 - fi - rmmod $MODULE 2>/dev/null - done - - # If we are here, none of the above specified modules worked. - # As a last chance, try to modprobe everything. - echo_warn "No networking kernel module found!" - modprobe_everything - cat /proc/net/dev | grep ':' | grep -v 'lo:' | cut -d : -f 1 | tr -d " " | head -n 1 -} - - -# Download data from tftp -# $1 = target (store downloaded files there) -# -download_data_pxe() -{ - debug_log "download_data_pxe" "$*" - local CMD CLIENT SERVER GW MASK PORT ETH PROTOCOL - - mkdir -p "$1/$LIVEKITNAME" - - cmdline_value ip | while IFS=":" read CLIENT SERVER GW MASK PORT; do - echo_livekit_msg "Downloading files from ${SERVER}..." >&2 - - ETH=$(init_network_dev) - if [ "$PORT" = "" ]; then - PORT="7529" - fi - - # set IP address as given by boot paramter - if [ -n "$CLIENT" ] && [ -n "$MASK" ]; then - ifconfig $ETH "$CLIENT" netmask "$MASK" - route add default gw "$GW" - else - # if client ip is unknown, try to get a DHCP lease - udhcpc -i $ETH -f -q - fi - - # well known IP address of Google public DNS service - echo nameserver 8.8.8.8 >> /etc/resolv.conf - - PROTOCOL=http - wget -q -O "$1/PXEFILELIST" "http://$SERVER:$PORT/PXEFILELIST?$(uname -r):$(uname -m)" - if [ $? -ne 0 ]; then - echo_warn "Failed to download from http://${SERVER}:${PORT}!" >&2 - echo_livekit_msg 'Downloading with TFTP protocol...' >&2 - PROTOCOL=tftp - tftp -g -r PXEFILELIST -l "$1/PXEFILELIST" $SERVER - fi - - cat "$1/PXEFILELIST" | while read FILE; do - if [ "$PROTOCOL" = "http" ]; then - echo_livekit_msg "PXE-HTTP: Downloading ${FILE}..." >&2 - wget -O "$1/$LIVEKITNAME/$FILE" "http://$SERVER:$PORT/$FILE" - elif [ "$PROTOCOL" = "tftp" ]; then - echo_livekit_msg "PXE-TFTP: Downloading ${FILE}..." >&2 - tftp -g -r $FILE -l "$1/$LIVEKITNAME/$FILE" $SERVER - fi - done - done - - echo "$1/$LIVEKITNAME" -} - -# Find LIVEKIT data by mounting all devices -# If found, keep mounted, else unmount -# $1 = data directory target (mount here) -# $2 = data directory which contains compressed bundles -# -find_data_try() -{ - debug_log "find_data_try" "$*" - - local DEVICE FS FROM OPTIONS - - mkdir -p "$1" - blkid | sort | cut -d: -f 1 | grep -E -v "/loop|/ram|/zram" | while read DEVICE; do - FROM="$2" - FS="$(device_bestfs "$DEVICE")" - OPTIONS="$(fs_options $FS)" - mount -r "$DEVICE" "$1" $FS $OPTIONS 2>/dev/null - - # if the FROM parameter is actual file, mount it again as loop (eg. iso) - if [ -f "$1/$FROM" ]; then - mount -o remount,rw "$DEVICE" "$1" 2>/dev/null - mkdir -p "$1/../file" - mount -o loop,ro "$1/$FROM" "$1/../file" 2>/dev/null - FROM="../file/$LIVEKITNAME" - fi - - # search for bundles in the mounted directory - if [ "$(find "$1/$FROM" -maxdepth 1 -name "*.$BEXT" 2>/dev/null)" != "" ]; then - # we found at least one bundle/module here - mount -o remount,rw "$DEVICE" "$1" 2>/dev/null - echo "$1/$FROM" | tr -s "/" | sed -r "s:/[^/]+/[.][.]/:/:g" - return - fi - - # unmount twice, since there could be mounted ISO as loop too. If not, it doesn't hurt - umount "$1" 2>/dev/null - umount "$1" 2>/dev/null - done -} - -# Retry finding LIVEKIT data several times, -# until timeouted or until data is found -# $1 = timeout -# $2 = data directory target (mount here) -# -find_data() -{ - debug_log "find_data" "$*" - - local DATA FROM - - if [ "$(cmdline_value ip)" != "" ]; then - download_data_pxe "$2" - return - fi - - FROM="$(cmdline_value from)" - if [ "$FROM" = "" ]; then FROM="$LIVEKITNAME"; fi - echo_livekit >&2 - echo "Looking for $LIVEKITNAME data in /$FROM .." | tr -s "/" >&2 - for timeout in $(seq 1 $1); do - echo -n "." >&2 - refresh_devs - DATA="$(find_data_try "$2" "$FROM")" - - # This "was" a bug! - echo "" >&2 - - if [ "$DATA" != "" ]; then - echo_livekit_msg "$LIVEKITNAME data found on $(mounted_device "$2")" >&2 - echo "$DATA" - return - fi - sleep 1 - done - echo "" >&2 - - if [ "$DATA" = "" ]; then - fatal "$LIVEKITNAME data not found" - fi - -} - -# Activate persistent changes -# $1 = data directory -# $2 = target changes directory -# -persistent_changes() -{ - debug_log "persistent_changes" "$*" - - local CHANGES T1 T2 - - CHANGES="$1/$(basename "$2")" - T1="$CHANGES/.perch-test.dat" - T2="${T1}-clone.dat" - - # Setup the directory anyway, it will be used in all cases - mkdir -p "$2" - - # If persistent changes are not requested, end here - if grep -vq 'perch' /proc/cmdline; then - return - fi - - # check if changes directory exists and is writable - touch "$T1" 2>/dev/null && rm -f "$T1" 2>/dev/null - - # if not, simply return back - if [ $? -ne 0 ]; then - echo_warn "Persistent changes not writable or not used." - return - fi - echo_livekit_msg "Testing persistent changes for POSIX compatibility..." >&2 - touch "$T1" && ln -sf "$T1" "$T2" 2>/dev/null && \ - chmod +x "$T1" 2>/dev/null && test -x "$T1" && \ - chmod -x "$T1" 2>/dev/null && test ! -x "$T1" && \ - rm "$T1" "$T2" 2>/dev/null - - if [ $? -ne 0 ]; then - echo_warn "File system is not POSIX-compatible!" >&2 - echo_livekit_msg "Activating DynFileFS persistent changes..." >&2 - rm "$T1" "$T2" 2>/dev/null - - mount.dynfilefs "$CHANGES/changes.dat" 4000 "$2" - if [ "$(device_bestfs "$2/loop.fs" | tr -d " ")" = "-t" ]; then - mke2fs -F "$2/loop.fs" >/dev/null - fi - mount -o loop,sync "$2/loop.fs" "$2" - rmdir "$2/lost+found" 2>/dev/null - else - echo_livekit_msg "Activating native persistent changes..." >&2 - mount --bind "$CHANGES" "$2" - fi -} - -# Copy content of rootcopy directory to union -# $1 = data directory -# $2 = union directory -copy_rootcopy_content() -{ - debug_log "copy_rootcopy_content" "$*" - - if [ "$(ls -1 "$1/rootcopy/" 2>/dev/null)" != "" ]; then - echo_livekit - echo "Copying content of rootcopy directory..." - cp -a "$1"/rootcopy/* "$2" - fi -} - -# Copy data to RAM if requested -# $1 = live data directory -# $2 = changes directory -# -copy_to_ram() -{ - debug_log "copy_to_ram" "$*" - - local MDIR MDEV RAM CHANGES - - if grep -vq 'copy2ram' /proc/cmdline; then - echo "$1" - return - fi - - echo_livekit_msg "Copying $LIVEKITNAME data to RAM..." >&2 - RAM="$(dirname "$2")"/copy_to_ram - mkdir -p "$RAM" - cp -a "$1"/* "$RAM" - echo "$RAM" - - MDIR="$(mounted_dir "$1")" - MDEV="$(mounted_device "$1")" - MDEV="$(losetup $MDEV 2>/dev/null | cut -d " " -f 3)" - umount "$MDIR" 2>/dev/null - - if [ "$MDEV" ]; then # iso was mounted here, try to unmount the FS it resides on too - MDEV="$(mounted_device "$MDEV")" - umount "$MDEV" 2>/dev/null - fi -} - -# load filter -# -filter_load() -{ - local FILTER - FILTER=$(cmdline_value load) - if [ "$FILTER" = "" ]; then - cat - - else - cat - | egrep "$FILTER" - fi -} - -# noload filter -# -filter_noload() -{ - local FILTER - FILTER=$(cmdline_value noload) - if [ "$FILTER" = "" ]; then - cat - - else - cat - | egrep -v "$FILTER" - fi -} - -# sort modules by number even if they are in subdirectory -# -sortmod() -{ - cat - | sed -r "s,(.*/(.*)),\\2:\\1," | sort -n | cut -d : -f 2- -} - -# Mount squashfs filesystem bundles -# and add them to union -# $1 = directory where to search for bundles -# $2 = directory where to mount bundles -# $3 = directory where union is mounted -# -union_append_bundles() -{ - debug_log "union_append_bundles" "$*" - - local BUN - - echo_livekit >&2 - echo "Appending bundles to union..." >&2 - - # Just tell me why! Why be compact?!? - ( ls -1 "$1" | sort -n ; cd "$1" ; find modules/ 2>/dev/null | \ - sortmod | filter_load) | grep '[.]'$BEXT'$' |\ - filter_noload | \ - while read BUNDLE; do - echo_livekit_msg "Appending: $BUNDLE" >&2 - - BUN="$(basename "$BUNDLE")" - mkdir -p "$2/$BUN" - - # It now depends on your kernel! - mount -o loop -t squashfs "$1/$BUNDLE" "$2/$BUN" - mount -o remount,add:1:"$2/$BUN" aufs "$3" - done -} - -# Create empty fstab properly -# $1 = root directory -# -fstab_create() -{ - debug_log "fstab_create" "$*" - - local FSTAB - FSTAB="$1/etc/fstab" - echo aufs / aufs defaults 0 0 > $FSTAB - echo proc /proc proc defaults 0 0 >> $FSTAB - echo sysfs /sys sysfs defaults 0 0 >> $FSTAB - echo devpts /dev/pts devpts gid=5,mode=620 0 0 >> $FSTAB - echo tmpfs /dev/shm tmpfs defaults 0 0 >> $FSTAB -} - - -# Change root and execute init -# $1 = where to change root -# -change_root() -{ - debug_log "change_root" "$*" - echo_livekit_msg "Changing root..." >&2 - umount /proc - umount /sys - - cd "$1" - - # make sure important device files and directories are in union - mkdir -p boot dev proc sys tmp mnt run - chmod 1777 tmp - if [ ! -e dev/console ]; then mknod dev/console c 5 1; fi - if [ ! -e dev/tty ]; then mknod dev/tty c 5 0; fi - if [ ! -e dev/tty0 ]; then mknod dev/tty0 c 4 0; fi - if [ ! -e dev/tty1 ]; then mknod dev/tty1 c 4 1; fi - if [ ! -e dev/null ]; then mknod dev/null c 1 3; fi - if [ ! -e sbin/fsck.aufs ]; then ln -s /bin/true sbin/fsck.aufs; fi - - # find chroot and init - if [ -x bin/chroot -o -L bin/chroot ]; then CHROOT=bin/chroot; fi - if [ -x sbin/chroot -o -L sbin/chroot ]; then CHROOT=sbin/chroot; fi - if [ -x usr/bin/chroot -o -L usr/bin/chroot ]; then CHROOT=usr/bin/chroot; fi - if [ -x usr/sbin/chroot -o -L usr/sbin/chroot ]; then CHROOT=usr/sbin/chroot; fi - if [ "$CHROOT" = "" ]; then fatal "chroot: Executable not found!"; fi - - if [ -x bin/init -o -L bin/init ]; then INIT=bin/init; fi - if [ -x sbin/init -o -L sbin/init ]; then INIT=sbin/init; fi - if [ "$INIT" = "" ]; then fatal "init: Executable not found!"; fi - - mkdir -p mnt/live - mount -n -o remount,ro aufs . - pivot_root . mnt/live - exec $CHROOT . $INIT < dev/console > dev/console 2>&1 -}