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modsign: Use single PEM file for autogenerated key

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The current rule for generating signing_key.priv and signing_key.x509 is
a classic example of a bad rule which has a tendency to break parallel
make. When invoked to create *either* target, it generates the other
target as a side-effect that make didn't predict.

So let's switch to using a single file signing_key.pem which contains
both key and certificate. That matches what we do in the case of an
external key specified by CONFIG_MODULE_SIG_KEY anyway, so it's also
slightly cleaner.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Woodhouse
2015-07-20 21:16:30 +01:00
committed by David Howells
parent 1329e8cc69
commit fb11794991
5 changed files with 16 additions and 17 deletions
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4
init/Kconfig
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@@ -1950,7 +1950,7 @@ config MODULE_SIG_HASH
config MODULE_SIG_KEY
string "File name or PKCS#11 URI of module signing key"
default "signing_key.priv"
default "signing_key.pem"
depends on MODULE_SIG
help
Provide the file name of a private key/certificate in PEM format,
@@ -1958,7 +1958,7 @@ config MODULE_SIG_KEY
the URI should identify, both the certificate and its corresponding
private key.
If this option is unchanged from its default "signing_key.priv",
If this option is unchanged from its default "signing_key.pem",
then the kernel will automatically generate the private key and
certificate as described in Documentation/module-signing.txt