65 lines
2.2 KiB
Diff
65 lines
2.2 KiB
Diff
commit ea4db66e941720313af2c6b1afb32a74f3e360f4
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Author: Michael Bringmann <mwb@linux.vnet.ibm.com>
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Date: Tue Sep 10 14:31:42 2019 -0500
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Safe bootlist update
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This patch is intended to prevent problems with identifying or parsing
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the bootlist devices from propagating into the system NVRAM configuration.
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A number of such problems have been observed when processing USB devices.
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* If 'bootlist' encounters an invalid OF_DEVPATH entry, it will print
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an notice, but still continue on to write invalid data to nvram.
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Changed to abort the script before writing bad data to nvram.
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* When 'ofpathname' encounters an invalid 'devspec' file or invalid
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value in a 'devspec' file, while trying to find the logical pathname
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for a scsi device, it may continue to return the invalid 'devspec'
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value to the caller/invoking script.
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Changed to abort with an error message instead of returning that
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invalid value to a caller like 'bootlist'.
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Example:
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# bootlist -m normal sdb
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# bootlist -m normal -o
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Could not translate (null)/scsi@0/sd@0,0 to logical device name
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Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
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diff --git a/scripts/bootlist b/scripts/bootlist
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index 65926d7..acdaf89 100755
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--- a/scripts/bootlist
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+++ b/scripts/bootlist
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@@ -459,6 +459,7 @@ if [[ ${#LOGICAL_NAMES[*]} -ne 0 ]]; then
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if [[ -z ${OF_DEVPATH[$ctr]} ]]; then
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echo "Device ${LOGICAL_NAMES[$ctr]} does not appear to be valid." >&2
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+ exit 1
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else
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# See if this is an ethernet adapter. If so, the next entries
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# may be parameters for the bootlist entry.
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diff --git a/scripts/ofpathname b/scripts/ofpathname
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index c37c6bd..dc452c4 100755
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--- a/scripts/ofpathname
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+++ b/scripts/ofpathname
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@@ -803,9 +803,16 @@ l2of_scsi()
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# move up directories until we find one with devspec information
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goto_dir $PWD "devspec"
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- OF_PATH=`$CAT $PWD/devspec`
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+ if [[ -e $PWD/devspec ]]; then
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+ OF_PATH=`$CAT $PWD/devspec`
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+ else
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+ err $ERR_NO_OFPATH
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+ fi
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+
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if [[ -z $OF_PATH ]]; then
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err $ERR_NO_OFPATH
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+ elif [[ ! -e /proc/device-tree/$OF_PATH ]]; then
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+ err $ERR_NO_OFPATH
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fi
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local vdev=${OF_PATH%/*}
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