diff options
| -rw-r--r-- | debian/changelog | 7 | ||||
| -rw-r--r-- | debian/initramfs-tools.examples | 1 | ||||
| -rw-r--r-- | docs/example_script | 21 | ||||
| -rw-r--r-- | init | 4 | ||||
| -rw-r--r-- | scripts/functions | 121 | ||||
| -rw-r--r-- | scripts/init-top/test | 18 | ||||
| -rw-r--r-- | scripts/local | 6 | ||||
| -rw-r--r-- | scripts/nfs | 8 |
8 files changed, 185 insertions, 1 deletions
diff --git a/debian/changelog b/debian/changelog index 787f5fa..41f15e5 100644 --- a/debian/changelog +++ b/debian/changelog @@ -13,7 +13,12 @@ initramfs-tools (0.7) breezy; urgency=low * Add hookscript directories. - -- Jeff Bailey <jbailey@localhost> Thu, 9 Jun 2005 15:16:15 +0000 + * Call hookscripts + + Thanks to David Weinhall <tao@acc.umu.se> for the dependancy-based + hookscripts. + + -- Jeff Bailey <jbailey@ubuntu.com> Thu, 9 Jun 2005 17:08:01 +0000 initramfs-tools (0.6) breezy; urgency=low diff --git a/debian/initramfs-tools.examples b/debian/initramfs-tools.examples index 35ca94c..0e8472b 100644 --- a/debian/initramfs-tools.examples +++ b/debian/initramfs-tools.examples @@ -1 +1,2 @@ conf/modules +docs/example_script diff --git a/docs/example_script b/docs/example_script new file mode 100644 index 0000000..111b0d8 --- /dev/null +++ b/docs/example_script @@ -0,0 +1,21 @@ +#!/bin/sh + +# List the soft prerequisites here. So if there's something you know +# should be run first iff it exists. +PREREQ="" + +prereqs() +{ + echo "$PREREQ" +} + +case $1 in +# get pre-requisites +prereqs) + prereqs + exit 0 + ;; +esac + +# Do the work here. +echo "Got here!" @@ -40,6 +40,8 @@ for x in $(cat /proc/cmdline); do esac done +run_scripts /scripts/init_top + . /scripts/${BOOT} # Load the modules @@ -57,6 +59,8 @@ fi mountroot +run_scripts /scripts/init_bottom + umount /sys umount /proc diff --git a/scripts/functions b/scripts/functions index 19560ba..586c82f 100644 --- a/scripts/functions +++ b/scripts/functions @@ -7,3 +7,124 @@ panic() FS1='(initramfs) ' exec /bin/sh fi } + +# this function finds scripts with empty depends and adds them +# to the ordered list +dep_reduce() +{ + i=0 + j=0 + unset neworder + + for entry in "${array[@]}"; do + set - ${entry} + + if [ "$#" -eq "0" ]; then + continue + elif [ "$#" -eq "1" ]; then + if [ $end -eq 0 ] || + [ x"${order[$((end-1))]}" != x"$1" ]; then + order[$((end))]=$1 + end=$((end+1)) + neworder[$((j))]=$1 + j=$((j+1)) + fi + + array[$((i))]= + fi + + i=$((i+1)) + done +} + +dep_remove() +{ + i=0 + + # for each row in the array + for entry in "${array[@]}"; do + unset newentry + + set - ${entry} + + # for each dependency of the script + for dep in "$@"; do + new=1 + + # for each new dependency + for tmp in "${order[@]}"; do + if [ x"$dep" = x"$tmp" ]; then + new=0 + fi + done + + if [ x"$new" = x"1" ]; then + newentry="$newentry $dep" + fi + done + + array[$((i))]="$newentry" + i=$((i+1)) + done +} + +run_scripts() +{ + initdir=${1} + scripts=$(ls ${initdir}) + order= + end=0 + array= + + # FIXME: New algorithm + # array of strings: "$file $prereqs" + # iterate over all strings; find empty strings (just $file) + # add to order, delete from all strings and zero out entry + # repeat until all strings are empty + + i=0 + for file in $scripts; do + # if it's not a regular file, or if it's not executable, skip it + if ! [ -f ${initdir}/${file} ] || ! [ -x ${initdir}/${file} ]; then + continue + fi + + array[$((i))]="$file $(${initdir}/${file} prereqs)" + i=$((i+1)) + done + + # No scripts in directory, bail. + if [ ${i} -eq 0 ]; then + return 0 + fi + + while /bin/true; do + set - ${array[@]} + + if [ "$#" -eq "0" ]; then + break + fi + + dep_reduce + + dep_remove + + if [ "${#neworder}" -eq "0" ]; then + for x in "${array[@]}"; do + if [ x"$x" != x"" ]; then + printf "could not reduce further; " + printf "circular dependencies\n" + return 1 + fi + done + + # we're done! + break + fi + done + + # run the initscripts + for script in "${order[@]}"; do + ${initdir}/${script} + done +} diff --git a/scripts/init-top/test b/scripts/init-top/test new file mode 100644 index 0000000..e4d59fb --- /dev/null +++ b/scripts/init-top/test @@ -0,0 +1,18 @@ +#!/bin/sh + +PREREQ="" + +prereqs() +{ + echo "$PREREQ" +} + +case $1 in +# get pre-requisites +prereqs) + prereqs + exit 0 + ;; +esac + +echo "Got here!" diff --git a/scripts/local b/scripts/local index 572f185..ffbd230 100644 --- a/scripts/local +++ b/scripts/local @@ -3,6 +3,8 @@ # Parameter: Where to mount the filesystem mountroot () { + run_scripts /scripts/local_top + # Get the root filesystem type if [ ! -e ${ROOT} ]; then panic "ALERT! ${ROOT} does not exist. Dropping to a shell!" @@ -10,6 +12,10 @@ mountroot () eval $(fstype < ${ROOT}) + run_scripts /scripts/local_premount + # Mount root mount ${ro} -t ${FSTYPE} ${ROOT} ${rootmnt} + + run_scripts /scripts/local_bottom } diff --git a/scripts/nfs b/scripts/nfs index 1225c4d..d0f1600 100644 --- a/scripts/nfs +++ b/scripts/nfs @@ -2,10 +2,18 @@ # Paramter: Where the root should be mounted mountroot () { + run_scripts /scripts/nfs_top + ipconfig ${DEVICE} . /tmp/net-${DEVICE}.conf if [ "x${NFSROOT}" = "xauto" ]; then NFSROOT=${ROOTSERVER}:${ROOTPATH} fi + + run_scripts /scripts/nfs_premount + nfsmount ${NFSROOT} ${rootmnt} + + run_scripts /scripts/nfs_bottom + } |