diff options
Diffstat (limited to 'meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh')
| -rw-r--r-- | meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh | 223 |
1 files changed, 208 insertions, 15 deletions
diff --git a/meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh b/meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh index 12c5a2f1b..c37b3d53d 100644 --- a/meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh +++ b/meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh @@ -44,6 +44,84 @@ probe_fs_type() { echo ${fst:=jffs2} } +# This fw_get_env_var is a possibly broken version of fw_printenv that +# does not check the crc or flag byte. +# The u-boot environemnt starts with a crc32, followed by a flag byte +# when a redundannt environment is configured, followed by var=value\0 sets. +# The flag byte for nand is a 1 byte counter; for nor it is a 1 or 0 byte. + +get_fw_env_var() { + # do we have 1 or 2 copies of the environment? + # count non-blank non-comment lines + # copies=$(grep -v ^# /etc/fw_env.config | grep -c [::alnum::]) + # ... we could if we had the fw_env.config in the initramfs + copies=1 + + # * Change \n to \r and \0 to \n + # * Skip to the 5th byte to skip over crc + # * then skip to the first or 2nd byte to skip over flag if it exists + # * stop parsing at first empty line corresponding to the + # double \0 at the end of the environment. + # * print the value of the variable name passed as argument + + cat /run/fw_env | + tr '\n\000' '\r\n' | + tail -c +5 | tail -c +${copies-1} | + sed -ne '/^$/,$d' -e "s/^$1=//p" +} + +setup_resolv() { + runresolv=/run/systemd/resolve/resolv.conf + etcresolv=/etc/resolv.conf + + if test ! -e $etcresolv -a ! -L $etcresolv + then + mkdir -p ${runresolv%/*} + ln -s $runresolv $etcresolv + fi + if test ! -f $runresolv + then + cat /proc/net/pnp > $runresolv + fi + + return 0 +} + +try_tftp() { + # split into tftp:// host:port/ path/on/remote + # then spilt off / and then :port from the end of host:port/ + # and : from the beginning of port + + rest="${1#tftp://}" + path=${rest#*/} + host=${rest%$path} + host="${host%/}" + port="${host#${host%:*}}" + host="${host%$port}" + port="${port#:}" + + setup_resolv + + if test -z "$host" -o -z "$path" + then + debug_takeover "Invalid tftp download url '$url'." + elif echo "Downloading '$url' from $host ..." && + ! tftp -g -r "$path" -l /run/image-rofs "$host" ${port+"$port"} + then + debug_takeover "Download of '$url' failed." + fi +} + +try_wget() { + setup_resolv + + echo "Downloading '$1' ..." + if ! wget -O /run/image-rofs "$1" + then + debug_takeover "Download of '$url' failed." + fi +} + debug_takeover() { echo "$@" test -n "$@" && echo Enter password to try to manually fix. @@ -88,6 +166,10 @@ rwdev=/dev/mtdblock${rwfs#mtd} # Set to y for yes, anything else for no. force_rwfst_jffs2=y flash_images_before_init=n +consider_download_files=y +consider_download_tftp=y +consider_download_http=y +consider_download_ftp=y rofst=squashfs rwfst=$(probe_fs_type $rwdev) @@ -101,24 +183,94 @@ init=/sbin/init fsckbase=/sbin/fsck. fsck=$fsckbase$rwfst fsckopts=-a +optfile=/run/initramfs/init-options +urlfile=/run/initramfs/init-download-url +update=/run/initramfs/update + +if test -e /${optfile##*/} +then + cp /${optfile##*/} $optfile +fi + +if test ! -f $optfile +then + cat /proc/cmdline > $optfile + get_fw_env_var openbmcinit >> $optfile + get_fw_env_var openbmconce >> $optfile +fi echo rofs = $rofs $rofst rwfs = $rwfs $rwfst -if grep -w debug-init-sh /proc/cmdline +if grep -w debug-init-sh $optfile then debug_takeover "Debug initial shell requested by command line." fi -# If there are images in root move them to run/initramfs/ now. +if test "x$consider_download_files" = xy && + grep -w openbmc-init-download-files $optfile +then + if test -f ${urlfile##*/} + then + cp ${urlfile##*/} $urlfile + fi + if test ! -f $urlfile + then + get_fw_env_var openbmcinitdownloadurl > $urlfile + fi + url="$(cat $urlfile)" + rest="${url#*://}" + proto="${url%$rest}" + + if test -z "$url" + then + echo "Download url empty. Ignoring download request." + elif test -z "$proto" + then + echo "Download failed." + elif test "$proto" = tftp:// + then + if test "x$consider_download_tftp" = xy + then + try_tftp "$url" + else + echo "Download failed." + fi + elif test "$proto" = http:// + then + if test "x$consider_download_http" = xy + then + try_wget "$url" + else + echo "Download failed." + fi + elif test "$proto" = ftp:// + then + if test "x$consider_download_ftp" = xy + then + try_wget "$url" + else + echo "Download failed." + fi + else + echo "Download failed." + fi +fi + +# If there are images in root move them to /run/initramfs/ or /run/ now. imagebasename=${image##*/} -if test -n "${imagebasename}" -a "x$flash_images_before_init" = xy && - ls /${imagebasename}* > /dev/null 2>&1 +if test -n "${imagebasename}" && ls /${imagebasename}* > /dev/null 2>&1 then - echo "Pending flash updates found." - mv /${imagebasename}* ${image%$imagebasename} + if test "x$flash_images_before_init" = xy + then + echo "Flash images found, will update before starting init." + mv /${imagebasename}* ${image%$imagebasename} + else + echo "Flash images found, will use but deferring flash update." + mv /${imagebasename}* /run/ + fi fi -if grep -w clean-rwfs-filesystem /proc/cmdline +if grep -w clean-rwfs-filesystem $optfile then echo "Cleaning of read-write overlay filesystem requested." touch $trigger @@ -132,27 +284,64 @@ fi if ls $image* > /dev/null 2>&1 then - if ! test -x /update + if ! test -x $update then - debug_takeover "Flash update requested but /update missing!" + debug_takeover "Flash update requested but $update missing!" elif test -f $trigger -a ! -s $trigger then echo "Saving selected files from read-write overlay filesystem." - /update && rm -f $image* + $update --no-restore-files echo "Clearing read-write overlay filesystem." flash_eraseall /dev/$rwfs echo "Restoring saved files to read-write overlay filesystem." touch $trigger - /update - rm -rf /save $trigger + $update --no-save-files --clean-saved-files else - /update && rm -f $image* + $update --clean-saved-files fi rwfst=$(probe_fs_type $rwdev) fsck=$fsckbase$rwfst fi +if grep -w overlay-filesystem-in-ram $optfile +then + rwfst=none +fi + +copyfiles= +if grep -w copy-files-to-ram $optfile +then + rwfst=none + copyfiles=y +fi + +# It would be nice to do this after fsck but that mean rofs is mounted +# which triggers the mtd is mounted check +if test "$rwfst$copyfiles" = noney +then + touch $trigger + $update --copy-files --clean-saved-files --no-restore-files +fi + +if grep -w copy-base-filesystem-to-ram $optfile && + test ! -e /run/image-rofs && ! cp $rodev /run/image-rofs +then + # Remove any partial copy to avoid attempted usage later + if test -e /run/image-rofs + then + ls -l /run/image-rofs + rm -f /run/image-rofs + fi + debug_takeover "Copying $rodev to /run/image-rofs failed." +fi + +if test -s /run/image-rofs +then + rodev=/run/image-rofs + roopts=$roopts,loop +fi + mount $rodev $rodir -t $rofst -o $roopts if test -x $rodir$fsck @@ -171,12 +360,16 @@ then then debug_takeover "fsck of read-write fs on $rwdev failed (rc=$rc)" fi -elif test $fsck != /sbin/fsck.jffs2 +elif test "$rwfst" != jffs2 -a "$rwfst" != none then echo "No '$fsck' in read only fs, skipping fsck." fi -if ! mount $rwdev $rwdir -t $rwfst -o $rwopts +if test "$rwfst" = none +then + echo "Running with read-write overlay in RAM for this boot." + echo "No state will be preserved unless flash update performed." +elif ! mount $rwdev $rwdir -t $rwfst -o $rwopts then msg="$(cat)" << HERE |
