#!/bin/sh # Copyright (C) 2006-2013 OpenWrt.org # Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de> # Copyright (C) 2010 Vertical Communications debug () { ${DEBUG:-:} "$@" } # newline N=" " _C=0 NO_EXPORT=1 LOAD_STATE=1 LIST_SEP=" " hotplug_dev() { env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug-call net } append() { local var="$1" local value="$2" local sep="${3:- }" eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\"" } list_contains() { local var="$1" local str="$2" local val eval "val=\" \${$var} \"" [ "${val%% $str *}" != "$val" ] } list_remove() { local var="$1" local remove="$2" local val eval "val=\" \${$var} \"" val1="${val%% $remove *}" [ "$val1" = "$val" ] && return val2="${val##* $remove }" [ "$val2" = "$val" ] && return val="${val1## } ${val2%% }" val="${val%% }" eval "export ${NO_EXPORT:+-n} -- \"$var=\$val\"" } config_load() { [ -n "$IPKG_INSTROOT" ] && return 0 uci_load "$@" } reset_cb() { config_cb() { return 0; } option_cb() { return 0; } list_cb() { return 0; } } reset_cb package() { return 0 } config () { local cfgtype="$1" local name="$2" export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1)) name="${name:-cfg$CONFIG_NUM_SECTIONS}" append CONFIG_SECTIONS "$name" [ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name" export ${NO_EXPORT:+-n} CONFIG_SECTION="$name" export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype" } option () { local varname="$1"; shift local value="$*" export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value" [ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*" } list() { local varname="$1"; shift local value="$*" local len config_get len "$CONFIG_SECTION" "${varname}_LENGTH" 0 [ $len = 0 ] && append CONFIG_LIST_STATE "${CONFIG_SECTION}_${varname}" len=$(($len + 1)) config_set "$CONFIG_SECTION" "${varname}_ITEM$len" "$value" config_set "$CONFIG_SECTION" "${varname}_LENGTH" "$len" append "CONFIG_${CONFIG_SECTION}_${varname}" "$value" "$LIST_SEP" list_cb "$varname" "$*" } config_rename() { local OLD="$1" local NEW="$2" local oldvar local newvar [ -n "$OLD" -a -n "$NEW" ] || return for oldvar in `set | grep ^CONFIG_${OLD}_ | \ sed -e 's/\(.*\)=.*$/\1/'` ; do newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}" eval "export ${NO_EXPORT:+-n} \"$newvar=\${$oldvar}\"" unset "$oldvar" done export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , $NEW ,")" [ "$CONFIG_SECTION" = "$OLD" ] && export ${NO_EXPORT:+-n} CONFIG_SECTION="$NEW" } config_unset() { config_set "$1" "$2" "" } config_clear() { local SECTION="$1" local oldvar list_remove CONFIG_SECTIONS "$SECTION" export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}" for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \ sed -e 's/\(.*\)=.*$/\1/'` ; do unset $oldvar done } # config_get <variable> <section> <option> [<default>] # config_get <section> <option> config_get() { case "$3" in "") eval echo "\${CONFIG_${1}_${2}:-\${4}}";; *) eval export ${NO_EXPORT:+-n} -- "${1}=\${CONFIG_${2}_${3}:-\${4}}";; esac } # config_get_bool <variable> <section> <option> [<default>] config_get_bool() { local _tmp config_get _tmp "$2" "$3" "$4" case "$_tmp" in 1|on|true|enabled) _tmp=1;; 0|off|false|disabled) _tmp=0;; *) _tmp="$4";; esac export ${NO_EXPORT:+-n} "$1=$_tmp" } config_set() { local section="$1" local option="$2" local value="$3" local old_section="$CONFIG_SECTION" CONFIG_SECTION="$section" option "$option" "$value" CONFIG_SECTION="$old_section" } config_foreach() { local ___function="$1" [ "$#" -ge 1 ] && shift local ___type="$1" [ "$#" -ge 1 ] && shift local section cfgtype [ -z "$CONFIG_SECTIONS" ] && return 0 for section in ${CONFIG_SECTIONS}; do config_get cfgtype "$section" TYPE [ -n "$___type" -a "x$cfgtype" != "x$___type" ] && continue eval "$___function \"\$section\" \"\$@\"" done } config_list_foreach() { [ "$#" -ge 3 ] || return 0 local section="$1"; shift local option="$1"; shift local function="$1"; shift local val local len local c=1 config_get len "${section}" "${option}_LENGTH" [ -z "$len" ] && return 0 while [ $c -le "$len" ]; do config_get val "${section}" "${option}_ITEM$c" eval "$function \"\$val\" \"\$@\"" c="$(($c + 1))" done } insert_modules() { [ -d /etc/modules.d ] && { cd /etc/modules.d sed 's/^[^#]/insmod &/' $* | ash 2>&- || : } } include() { local file for file in $(ls $1/*.sh 2>/dev/null); do . $file done } find_mtd_index() { local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')" local INDEX="${PART##mtd}" echo ${INDEX} } find_mtd_part() { local INDEX=$(find_mtd_index "$1") local PREFIX=/dev/mtdblock [ -d /dev/mtdblock ] && PREFIX=/dev/mtdblock/ echo "${INDEX:+$PREFIX$INDEX}" } find_mtd_chardev() { local INDEX=$(find_mtd_index "$1") local PREFIX=/dev/mtd [ -d /dev/mtd ] && PREFIX=/dev/mtd/ echo "${INDEX:+$PREFIX$INDEX}" } mtd_get_mac_ascii() { local mtdname="$1" local key="$2" local part local mac_dirty part=$(find_mtd_part "$mtdname") if [ -z "$part" ]; then echo "mtd_get_mac_ascii: partition $mtdname not found!" >&2 return fi mac_dirty=$(strings "$part" | sed -n 's/^'"$key"'=//p') # "canonicalize" mac [ -n "$mac_dirty" ] && echo ${mac_dirty} | tr [A-F] [a-f] } mtd_get_mac_binary() { local mtdname="$1" local offset="$2" local part part=$(find_mtd_part "$mtdname") if [ -z "$part" ]; then echo "mtd_get_mac_binary: partition $mtdname not found!" >&2 return fi dd bs=1 skip=$offset count=6 if=$part 2>/dev/null | hexdump -v -n 6 -e '5/1 "%02x:" 1/1 "%02x"' } mtd_get_part_size() { local part_name=$1 local first dev size erasesize name while read dev size erasesize name; do name=${name#'"'}; name=${name%'"'} if [ "$name" = "$part_name" ]; then echo $((0x$size)) break fi done < /proc/mtd } macaddr_add() { local mac=$1 local val=$2 local oui=${mac%:*:*:*} local nic=${mac#*:*:*:} nic=$(printf "%06x" $((0x${nic//:/} + $val & 0xffffff)) | sed 's/^\(.\{2\}\)\(.\{2\}\)\(.\{2\}\)/\1:\2:\3/') echo $oui:$nic } macaddr_setbit_la() { local mac=$1 printf "%02x:%s" $((0x${mac%%:*} | 0x02)) ${mac#*:} } macaddr_2bin() { local mac=$1 echo -ne \\x${mac//:/\\x} } strtok() { # <string> { <variable> [<separator>] ... } local tmp local val="$1" local count=0 shift while [ $# -gt 1 ]; do tmp="${val%%$2*}" [ "$tmp" = "$val" ] && break val="${val#$tmp$2}" export ${NO_EXPORT:+-n} "$1=$tmp"; count=$((count+1)) shift 2 done if [ $# -gt 0 -a -n "$val" ]; then export ${NO_EXPORT:+-n} "$1=$val"; count=$((count+1)) fi return $count } jffs2_mark_erase() { local part="$(find_mtd_part "$1")" [ -z "$part" ] && { echo Partition not found. return 1 } echo -e "\xde\xad\xc0\xde" | mtd -qq write - "$1" } uci_apply_defaults() { cd /etc/uci-defaults || return 0 files="$(ls)" [ -z "$files" ] && return 0 mkdir -p /tmp/.uci for file in $files; do ( . "./$(basename $file)" ) && rm -f "$file" done uci commit } group_add() { local name="$1" local gid="$2" local rc [ -f "${IPKG_INSTROOT}/etc/group" ] || return 1 [ -n "$IPKG_INSTROOT" ] || lock /var/lock/group echo "${name}:x:${gid}:" >> ${IPKG_INSTROOT}/etc/group rc=$? [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/group return $rc } group_exists() { grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/group } user_add() { local name="${1}" local uid="${2}" local gid="${3:-$2}" local desc="${4:-$1}" local home="${5:-/var/run/$1}" local shell="${6:-/bin/false}" local rc [ -f "${IPKG_INSTROOT}/etc/passwd" ] || return 1 [ -n "$IPKG_INSTROOT" ] || lock /var/lock/passwd echo "${name}:x:${uid}:${gid}:${desc}:${home}:${shell}" >> ${IPKG_INSTROOT}/etc/passwd echo "${name}:x:0:0:99999:7:::" >> ${IPKG_INSTROOT}/etc/shadow rc=$? [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/passwd return $rc } user_exists() { grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/passwd } pi_include() { if [ -f "/tmp/overlay/$1" ]; then . "/tmp/overlay/$1" elif [ -f "$1" ]; then . "$1" elif [ -d "/tmp/overlay/$1" ]; then if [ -n "$(ls /tmp/overlay/$1/*.sh 2>/dev/null)" ]; then for src_script in /tmp/overlay/$1/*.sh; do . "$src_script" done fi elif [ -d "$1" ]; then if [ -n "$(ls $1/*.sh 2>/dev/null)" ]; then for src_script in $1/*.sh; do . "$src_script" done fi else echo "WARNING: $1 not found" return 1 fi return 0 } boot_hook_splice_start() { export -n PI_HOOK_SPLICE=1 } boot_hook_splice_finish() { local hook for hook in $PI_STACK_LIST; do local v; eval "v=\${${hook}_splice:+\$${hook}_splice }$hook" export -n "${hook}=${v% }" export -n "${hook}_splice=" done export -n PI_HOOK_SPLICE= } boot_hook_init() { local hook="${1}_hook" export -n "PI_STACK_LIST=${PI_STACK_LIST:+$PI_STACK_LIST }$hook" export -n "$hook=" } boot_hook_add() { local hook="${1}_hook${PI_HOOK_SPLICE:+_splice}" local func="${2}" [ -n "$func" ] && { local v; eval "v=\$$hook" export -n "$hook=${v:+$v }$func" } } boot_hook_shift() { local hook="${1}_hook" local rvar="${2}" local v; eval "v=\$$hook" [ -n "$v" ] && { local first="${v%% *}" [ "$v" != "${v#* }" ] && \ export -n "$hook=${v#* }" || \ export -n "$hook=" export -n "$rvar=$first" return 0 } return 1 } boot_run_hook() { local hook="$1" local func while boot_hook_shift "$hook" func; do local ran; eval "ran=\$PI_RAN_$func" [ -n "$ran" ] || { export -n "PI_RAN_$func=1" $func "$1" "$2" } done } jffs2_ready() { mtdpart="$(find_mtd_part rootfs_data)" [ -z "$mtdpart" ] && return 1 magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"') [ "$magic" != "deadc0de" ] } dupe() { # <new_root> <old_root> cd $1 echo -n "creating directories... " { cd $2 find . -xdev -type d echo "./dev ./overlay ./mnt ./proc ./tmp" # xdev skips mounted directories cd $1 } | xargs mkdir -p echo "done" echo -n "setting up symlinks... " for file in $(cd $2; find . -xdev -type f;); do case "$file" in ./rom/note) ;; #nothing ./etc/config*|\ ./usr/lib/opkg/info/*) cp -af $2/$file $file;; *) ln -sf /rom/${file#./*} $file;; esac done for file in $(cd $2; find . -xdev -type l;); do cp -af $2/${file#./*} $file done echo "done" } pivot() { # <new_root> <old_root> mount -o noatime,move /proc $1/proc && \ pivot_root $1 $1$2 && { mount -o noatime,move $2/dev /dev mount -o noatime,move $2/tmp /tmp mount -o noatime,move $2/sys /sys 2>&- mount -o noatime,move $2/overlay /overlay 2>&- return 0 } } fopivot() { # <rw_root> <ro_root> <dupe?> root=$1 { if grep -q overlay /proc/filesystems; then mount -o noatime,lowerdir=/,upperdir=$1 -t overlayfs "overlayfs:$1" /mnt && root=/mnt elif grep -q mini_fo /proc/filesystems; then mount -t mini_fo -o noatime,base=/,sto=$1 "mini_fo:$1" /mnt 2>&- && root=/mnt else mount --bind -o noatime / /mnt mount --bind -o noatime,union "$1" /mnt && root=/mnt fi } || { [ "$3" = "1" ] && { mount | grep "on $1 type" 2>&- 1>&- || mount -o noatime,bind $1 $1 dupe $1 $rom } } pivot $root $2 } ramoverlay() { mkdir -p /tmp/root mount -t tmpfs -o noatime,mode=0755 root /tmp/root fopivot /tmp/root /rom 1 } [ -z "$IPKG_INSTROOT" -a -f /lib/config/uci.sh ] && . /lib/config/uci.sh