a214baad07
Now the version also specifies what Debian version the code uses, i.e "0.99.debian0.94.4". --HG-- rename : srcpkgs/initramfs-tools/files/scripts/init-premount/blacklist => srcpkgs/initramfs-tools/files/scripts/init-top/blacklist
397 lines
7.3 KiB
Bash
397 lines
7.3 KiB
Bash
# -*- shell-script -*-
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_log_msg()
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{
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[ "$quiet" = "y" ] && return
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printf "\033[1m"
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printf "$@"
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printf "\033[m\n"
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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: $@\n"
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}
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log_begin_msg()
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{
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_log_msg "$@ ..."
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}
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log_end_msg()
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{
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:
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}
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panic()
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{
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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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REASON="$@" PS1='(initramfs) ' /bin/sh -i </dev/console >/dev/console 2>&1
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}
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maybe_break()
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{
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if [ "${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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get_prereq_pairs()
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{
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set_initlist
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for gp_x in ${initlist}; do
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echo ${gp_x} ${gp_x}
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prereqs=$(${initdir}/${gp_x} prereqs)
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for prereq in ${prereqs}; do
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echo ${prereq} ${gp_x}
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done
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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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[ -f ${initdir}/${cs_x} ] || continue
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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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if [ -f ${initdir}/ORDER ]; then
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. ${initdir}/ORDER
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elif command -v tsort >/dev/null 2>&1; then
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runlist=$(get_prereq_pairs | tsort)
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call_scripts $2
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else
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get_prereqs
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reduce_prereqs
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call_scripts
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fi
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}
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# Load custom modules first
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load_modules()
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{
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if [ -e /conf/modules ]; then
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cat /conf/modules | while read m; do
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# Skip empty lines
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if [ -z "$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} ${minor}
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ROOT=/dev/root
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}
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# Parameter: device node to check
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# Echos fstype to stdout
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# Return value: indicates if an fs could be recognized
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get_fstype ()
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{
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local FS FSTYPE FSSIZE RET
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FS="${1}"
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# vol_id has a more complete list of file systems,
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# but fstype is more robust
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eval $(fstype "${FS}" 2> /dev/null)
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if [ "$FSTYPE" = "unknown" ] && command -v blkid >/dev/null 2>&1 ; then
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FSTYPE=$(blkid -o value -s TYPE "${FS}")
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elif [ "$FSTYPE" = "unknown" ] && [ -x /lib/udev/vol_id ]; then
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FSTYPE=$(/lib/udev/vol_id -t "${FS}" 2> /dev/null)
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fi
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RET=$?
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if [ -z "${FSTYPE}" ]; then
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FSTYPE="unknown"
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fi
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echo "${FSTYPE}"
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return ${RET}
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}
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configure_networking()
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{
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if [ -n "${BOOTIF}" ]; then
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# pxelinux sets BOOTIF to a value based on the mac address of the
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# network card used to PXE boot, so use this value for DEVICE rather
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# than a hard-coded device name from initramfs.conf. this facilitates
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# network booting when machines may have multiple network cards.
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# pxelinux sets BOOTIF to 01-$mac_address
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# strip off the leading "01-", which isn't part of the mac
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# address
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temp_mac=${BOOTIF#*-}
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# convert to typical mac address format by replacing "-" with ":"
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bootif_mac=""
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IFS='-'
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for x in $temp_mac ; do
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if [ -z "$bootif_mac" ]; then
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bootif_mac="$x"
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else
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bootif_mac="$x:$bootif_mac"
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fi
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done
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unset IFS
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# look for devices with matching mac address, and set DEVICE to
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# appropriate value if match is found.
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for device in /sys/class/net/* ; do
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if [ -f "$device/address" ]; then
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current_mac=$(cat "$device/address")
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if [ "$bootif_mac" = "$current_mac" ]; then
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DEVICE=${device##*/}
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break
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fi
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fi
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done
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fi
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# networking already configured thus bail out
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[ -n "${DEVICE}" ] && [ -e /tmp/net-"${DEVICE}".conf ] && return 0
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# support ip options see linux sources
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# Documentation/filesystems/nfsroot.txt
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# Documentation/frv/booting.txt
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for ROUNDTTT in 2 3 4 6 9 16 25 36 64 100; do
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# The NIC is to be configured if this file does not exist.
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# Ip-Config tries to create this file and when it succeds
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# creating the file, ipconfig is not run again.
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if [ -e /tmp/net-"${DEVICE}".conf ]; then
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break;
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fi
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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 ${ROUNDTTT} ${DEVICE}
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;;
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dhcp|bootp|rarp|both)
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ipconfig -t ${ROUNDTTT} -c ${IP} -d ${DEVICE}
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;;
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*)
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ipconfig -t ${ROUNDTTT} -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="${NEW_DEVICE}"
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fi
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;;
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esac
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done
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# source ipconfig output
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if [ -n "${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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command -v udevadm >/dev/null 2>&1 || return 0
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udevadm settle ${1:+--timeout=$1}
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}
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