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Diffstat (limited to 'package/base-files/files/lib/functions.sh')
| -rwxr-xr-x | package/base-files/files/lib/functions.sh | 543 |
1 files changed, 543 insertions, 0 deletions
diff --git a/package/base-files/files/lib/functions.sh b/package/base-files/files/lib/functions.sh new file mode 100755 index 0000000..f51bfea --- /dev/null +++ b/package/base-files/files/lib/functions.sh @@ -0,0 +1,543 @@ +#!/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 +} + +load_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="$2" + local part + local mac_dirty + + . /lib/functions.sh + + part=$(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 + printf "%02x:%02x:%02x:%02x:%02x:%02x" 0x${mac_dirty//:/ 0x} +} + +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"' +} + +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 |