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| author |   Kairui Song <kasong@redhat.com> | 2019-01-21 17:59:29 +0800 |
|---|---|---|
| committer |   Mimi Zohar <zohar@linux.ibm.com> | 2019-02-04 17:34:07 -0500 |
| commit | 278311e417be60f7caef6fcb12bda4da2711ceff (patch) | |
| tree | c322d3e96510244468ed35ea2f612dd71f7035ad /include/linux/verification.h | |
| parent | integrity, KEYS: add a reference to platform keyring (diff) | |
| download | wireguard-linux-278311e417be60f7caef6fcb12bda4da2711ceff.tar.xz wireguard-linux-278311e417be60f7caef6fcb12bda4da2711ceff.zip | |
kexec, KEYS: Make use of platform keyring for signature verify
This patch allows the kexec_file_load syscall to verify the PE signed
kernel image signature based on the preboot keys stored in the .platform
keyring, as fall back, if the signature verification failed due to not
finding the public key in the secondary or builtin keyrings.
This commit adds a VERIFY_USE_PLATFORM_KEYRING similar to previous
VERIFY_USE_SECONDARY_KEYRING indicating that verify_pkcs7_signature
should verify the signature using platform keyring. Also, decrease
the error message log level when verification failed with -ENOKEY,
so that if called tried multiple time with different keyring it
won't generate extra noises.
Signed-off-by: Kairui Song <kasong@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com> (for kexec_file_load part)
[zohar@linux.ibm.com: tweaked the first paragraph of the patch description,
and fixed checkpatch warning.]
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'include/linux/verification.h')
| -rw-r--r-- | include/linux/verification.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/verification.h b/include/linux/verification.h index cfa4730d607a..018fb5f13d44 100644 --- a/include/linux/verification.h +++ b/include/linux/verification.h @@ -17,6 +17,7 @@ * should be used. */ #define VERIFY_USE_SECONDARY_KEYRING ((struct key *)1UL) +#define VERIFY_USE_PLATFORM_KEYRING ((struct key *)2UL) /* * The use to which an asymmetric key is being put. |