script/seccomp.sh: check tarball sha256 #3482
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kolyshkin
added
backport/1.1-todo
|
1.1 backport: #3481 |
tianon
reviewed
May 24, 2022
script/seccomp.sh
Outdated
| wget "https://github.com/seccomp/libseccomp/releases/download/v${ver}/${tar}"{,.asc} | ||
| if ! sha256sum "${tar}" | grep -E "^${SECCOMP_SHA256[${ver}]}\s+${tar}$"; then |
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Not a maintainer (so take this for what it's worth), but given this is Bash, I think this would be more reliable something like this:
Suggested change
| if ! sha256sum "${tar}" | grep -E "^${SECCOMP_SHA256[${ver}]}\s+${tar}$"; then | |
| if ! sha256sum --strict --check - <<<"${SECCOMP_SHA256[${ver}]} *${tar}"; then |
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Yeah I agree that's more readable.
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Yes, thanks @tianon. I have also removed the if since now we have the proper error message printed by sha256 sum itself.
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It'd be nice to also verify the signature (which would be a better check than just the checksum) but it would require us to store the seccomp signing key in our repo (then again that's not too big of a deal). |
Add checking of downloaded tarball checksum.
In case it doesn't match the hardcoded value, the error is like this:
libseccomp-2.5.4.tar.gz: FAILED
sha256sum: WARNING: 1 computed checksum did NOT match
In case the checksum for a particular version is not specified in the
script, the error will look like this:
./script/seccomp.sh: line 29: SECCOMP_SHA256[${ver}]: unbound variable
In case the the hardcoded value in the file is of wrong format/length,
we'll get:
sha256sum: 'standard input': no properly formatted SHA256 checksum lines found
In any of these cases, the script aborts (due to set -e).
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
AkihiroSuda
approved these changes
May 26, 2022
mrunalp
approved these changes
May 27, 2022
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Add checking of downloaded tarball checksum.
In case it doesn't match the hardcoded value, the error is like this:
In case the checksum for a particular version is not specified in the
script, the error will look like this:
In case the the hardcoded value in the file is of wrong format/length,
we'll get:
In any of these cases, the script aborts (due to set -e).
Addresses #3480 (review)