dsanchez/spectre-meltdown-checker
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feat: add --hw-only to only show CPU microcode/cpuid/msr details

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Stéphane Lesimple 2018-03-25 12:48:37 +02:00
parent 28da7a0103
commit f191ec7884
1 changed files with 17 additions and 0 deletions
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17
spectre-meltdown-checker.sh
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@ -64,6 +64,7 @@ show_usage()
--variant [1,2,3] specify which variant you'd like to check, by default all variants are checked, --variant [1,2,3] specify which variant you'd like to check, by default all variants are checked,
can be specified multiple times (e.g. --variant 2 --variant 3) can be specified multiple times (e.g. --variant 2 --variant 3)
--hw-only only check for CPU informations, don't check for any variant
Return codes: Return codes:
0 (not vulnerable), 2 (vulnerable), 3 (unknown), 255 (error) 0 (not vulnerable), 2 (vulnerable), 3 (unknown), 255 (error)
@ -125,6 +126,7 @@ opt_no_sysfs=0
opt_sysfs_only=0 opt_sysfs_only=0
opt_coreos=0 opt_coreos=0
opt_arch_prefix='' opt_arch_prefix=''
opt_hw_only=0
global_critical=0 global_critical=0
global_unknown=0 global_unknown=0
@ -445,6 +447,9 @@ while [ -n "$1" ]; do
# don't use directly: used internally by --coreos # don't use directly: used internally by --coreos
opt_coreos=0 opt_coreos=0
shift shift
elif [ "$1" = "--hw-only" ]; then
opt_hw_only=1
shift
elif [ "$1" = "--batch" ]; then elif [ "$1" = "--batch" ]; then
opt_batch=1 opt_batch=1
opt_verbose=0 opt_verbose=0
@ -1013,6 +1018,18 @@ if [ "$opt_live_explicit" = 1 ]; then
exit 255 exit 255
fi fi
fi fi
if [ "$opt_hw_only" = 1 ]; then
if [ "$opt_allvariants" = 0 ]; then
show_usage
echo "$0: error: incompatible modes specified, --hw-only vs --variant" >&2
exit 255
else
opt_allvariants=0
opt_variant1=0
opt_variant2=0
opt_variant3=0
fi
fi
# coreos mode # coreos mode
if [ "$opt_coreos" = 1 ]; then if [ "$opt_coreos" = 1 ]; then