initramfs-tools: add sources and use them.
* Add source files directly to avoid recreating patches and patches lots of times with no gain. * Add du and expr busybox symlinks at init time. Bump revision. --HG-- extra : convert_revision : 4928750b0110f43cde577f6068e79bd0675c64cf
This commit is contained in:
Juan RP
parent
4e0f708ffb
commit
7e91eb4db8
25 changed files with 3645 additions and 292 deletions
309
templates/initramfs-tools/files/scripts/functions
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309
templates/initramfs-tools/files/scripts/functions
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@ -0,0 +1,309 @@
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# -*- shell-script -*-
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_log_msg()
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{
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if [ "$quiet" = "y" ]; then return; fi
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printf "$@"
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}
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log_success_msg()
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{
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_log_msg "Success: $@\n"
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}
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log_failure_msg()
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{
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_log_msg "Failure: $@\n"
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}
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log_warning_msg()
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{
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_log_msg "Warning: $@\n"
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}
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log_begin_msg()
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{
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if [ -x /sbin/usplash_write ]; then
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/sbin/usplash_write "TEXT $@"
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fi
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_log_msg "Begin: $@ ... "
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}
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log_end_msg()
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{
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if [ -x /sbin/usplash_write ]; then
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/sbin/usplash_write "SUCCESS ok"
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fi
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_log_msg "done.\n"
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}
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panic()
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{
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if [ -x /sbin/usplash_write ]; then
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/sbin/usplash_write "QUIT"
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fi
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# Disallow console access
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if [ -n "${panic}" ]; then
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sleep ${panic}
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reboot
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fi
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modprobe i8042
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modprobe atkbd
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echo $@
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PS1='(initramfs) ' /bin/sh -i </dev/console >/dev/console 2>&1
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}
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maybe_break()
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{
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if [ "${break:-}" = "$1" ]; then
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panic "Spawning shell within the initramfs"
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fi
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}
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render()
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{
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eval "echo -n \${$@}"
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}
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set_initlist()
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{
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unset initlist
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for si_x in ${initdir}/*; do
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# skip empty dirs without warning
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[ "${si_x}" = "${initdir}/*" ] && return
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# only allow variable name chars
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case ${si_x#${initdir}/} in
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*[![:alnum:]_.]*)
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[ "${verbose}" = "y" ] \
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&& echo "$si_x ignored: not alphanumeric or '_' file"
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continue
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;;
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esac
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# skip non executable scripts
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if [ ! -x ${si_x} ]; then
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[ "${verbose}" = "y" ] \
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&& echo "$si_x ignored: not executable"
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continue
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fi
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# skip directories
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if [ -d ${si_x} ]; then
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[ "${verbose}" = "y" ] \
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&& echo "$si_x ignored: a directory"
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continue
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fi
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initlist="${initlist} ${si_x#${initdir}/}"
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done
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}
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reduce_satisfied()
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{
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deplist="$(render array_${1})"
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unset tmpdeplist
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for rs_y in ${deplist}; do
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# only allow variable name chars
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case ${rs_y} in
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*[![:alnum:]_.]*)
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continue
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;;
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esac
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# skip non executable scripts
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if [ ! -x ${initdir}/${rs_y} ]; then
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continue
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fi
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# skip directories
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if [ -d ${initdir}/${rs_y} ]; then
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continue
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fi
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tmpdeplist="${tmpdeplist} ${rs_y}"
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done
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deplist=${tmpdeplist}
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for rs_x in ${runlist}; do
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pop_list_item ${rs_x} ${deplist}
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deplist=${tmppop}
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done
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eval array_${1}=\"${deplist}\"
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}
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get_prereqs()
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{
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set_initlist
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for gp_x in ${initlist}; do
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tmp=$(${initdir}/${gp_x} prereqs)
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eval array_${gp_x}=\"${tmp}\"
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done
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}
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count_unsatisfied()
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{
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set -- ${@}
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return ${#}
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}
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# Removes $1 from initlist
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pop_list_item()
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{
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item=${1}
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shift
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set -- ${@}
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unset tmppop
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# Iterate
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for pop in ${@}; do
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if [ ${pop} = ${item} ]; then
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continue
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fi
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tmppop="${tmppop} ${pop}"
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done
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}
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# This function generates the runlist, so we clear it first.
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reduce_prereqs()
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{
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unset runlist
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set -- ${initlist}
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i=$#
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# Loop until there's no more in the queue to loop through
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while [ ${i} -ne 0 ]; do
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oldi=${i}
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for rp_x in ${initlist}; do
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reduce_satisfied ${rp_x}
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count_unsatisfied $(render array_${rp_x})
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cnt=${?}
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if [ ${cnt} -eq 0 ]; then
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runlist="${runlist} ${rp_x}"
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pop_list_item ${rp_x} ${initlist}
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initlist=${tmppop}
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i=$((${i} - 1))
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fi
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done
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if [ ${i} -eq ${oldi} ]; then
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panic "PANIC: Circular dependancy. Exiting."
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fi
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done
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}
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call_scripts()
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{
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for cs_x in ${runlist}; do
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# mkinitramfs verbose output
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if [ "${verbose}" = "y" ]; then
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echo "Calling hook ${cs_x}"
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fi
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${initdir}/${cs_x}
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# allow boot scripts to modify exported boot paramaters
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if [ -e /conf/param.conf ]; then
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. /conf/param.conf
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fi
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done
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}
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run_scripts()
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{
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initdir=${1}
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[ ! -d ${initdir} ] && return
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get_prereqs
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reduce_prereqs
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call_scripts
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}
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# Load custom modules first
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load_modules()
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{
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if [ -e /conf/modules ]; then
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cat /conf/modules | while read m; do
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# Skip empty lines
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if [ -z "$m" ]; then
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continue
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fi
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# Skip comments - d?ash removes whitespace prefix
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com=$(printf "%.1s" "${m}")
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if [ "$com" = "#" ]; then
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continue
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fi
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modprobe $m
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done
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fi
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}
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# lilo compatibility
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parse_numeric() {
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case $1 in
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"")
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return
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;;
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/*)
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return
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;;
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[0-9]*:[0-9]*)
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minor=${1#*:}
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major=${1%:*}
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;;
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[A-Fa-f0-9]*)
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value=$(( 0x${1} ))
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minor=$(( ${value} % 256 ))
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major=$(( ${value} / 256 ))
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;;
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*)
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return
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;;
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esac
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mknod -m 600 /dev/root b ${major} ${minor}
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ROOT=/dev/root
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}
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configure_networking()
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{
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# networking already configured thus bail out
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[ -n "${DEVICE}" ] && [ -e /tmp/net-"${DEVICE}".conf ] && return 0
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# support ip options see linux sources
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# Documentation/filesystems/nfsroot.txt
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case ${IP} in
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none|off)
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# Do nothing
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;;
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""|on|any)
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# Bring up device
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ipconfig -t 180 ${DEVICE}
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;;
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dhcp|bootp|rarp|both)
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ipconfig -t 180 -c ${IP} -d ${DEVICE}
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;;
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*)
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ipconfig -t 180 -d $IP
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# grab device entry from ip option
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NEW_DEVICE=${IP#*:*:*:*:*:*}
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if [ "${NEW_DEVICE}" != "${IP}" ]; then
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NEW_DEVICE=${NEW_DEVICE%:*}
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else
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# wrong parse, possibly only a partial string
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NEW_DEVICE=
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fi
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if [ -n "${NEW_DEVICE}" ]; then
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DEVICE="${NEW_DEVICE}"
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fi
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;;
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esac
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# source ipconfig output
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if [ -n "${DEVICE}" ]; then
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# source specific bootdevice
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. /tmp/net-${DEVICE}.conf
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else
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# source any interface as not exaclty specified
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. /tmp/net-*.conf
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fi
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}
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# Wait for queued kernel/udev events
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wait_for_udev()
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{
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[ -x "$(command -v udevadm)" ] || return 0
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udevadm settle ${1:+--timeout=$1}
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}
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