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sstate: Allow validation of sstate singatures against list of keys

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Allow a user to validate sstate objects against a list of keys, instead
of just any known key in the user's keychain.

(From OE-Core rev: 52ba0c5e6e2e3d5d01dc3f01404f0ab1bb29b3b5)

Signed-off-by: Daniel McGregor <daniel.mcgregor@vecima.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Daniel McGregor
2021-10-12 22:04:56 -06:00
committed by Richard Purdie
parent 9a7bc68135
commit 652fdf8719
2 changed files with 26 additions and 6 deletions
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5
meta/classes/sstate.bbclass
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@@ -116,6 +116,9 @@ SSTATE_SIG_KEY ?= ""
SSTATE_SIG_PASSPHRASE ?= ""
# Whether to verify the GnUPG signatures when extracting sstate archives
SSTATE_VERIFY_SIG ?= "0"
# List of signatures to consider valid.
SSTATE_VALID_SIGS ??= ""
SSTATE_VALID_SIGS[vardepvalue] = ""
SSTATE_HASHEQUIV_METHOD ?= "oe.sstatesig.OEOuthashBasic"
SSTATE_HASHEQUIV_METHOD[doc] = "The fully-qualified function used to calculate \
@@ -372,7 +375,7 @@ def sstate_installpkg(ss, d):
bb.warn("No signature file for sstate package %s, skipping acceleration..." % sstatepkg)
return False
signer = get_signer(d, 'local')
if not signer.verify(sstatepkg + '.sig'):
if not signer.verify(sstatepkg + '.sig', d.getVar("SSTATE_VALID_SIGS")):
bb.warn("Cannot verify signature on sstate package %s, skipping acceleration..." % sstatepkg)
return False