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| author | Eric Snowberg <eric.snowberg@oracle.com> | 2023-05-22 19:09:42 -0400 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko@kernel.org> | 2023-08-17 20:12:20 +0000 |
| commit | 4cfb908054456ad8b6b8cd5108bbdf80faade8cd (patch) | |
| tree | bd4046f55cb525db633927638a605ce51e813606 /include/crypto | |
| parent | bff24699b94a34c5fcb8d3283794e7d39adb092c (diff) | |
| download | linux-4cfb908054456ad8b6b8cd5108bbdf80faade8cd.tar.gz | |
KEYS: DigitalSignature link restriction
Add a new link restriction. Restrict the addition of keys in a keyring
based on the key having digitalSignature usage set. Additionally, verify
the new certificate against the ones in the system keyrings. Add two
additional functions to use the new restriction within either the builtin
or secondary keyrings.
[jarkko@kernel.org: Fix checkpatch.pl --strict issues]
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-and-tested-by: Mimi Zohar <zohar@linux.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'include/crypto')
| -rw-r--r-- | include/crypto/public_key.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h index 8fadd561c50ee..462f8a34cdf87 100644 --- a/include/crypto/public_key.h +++ b/include/crypto/public_key.h @@ -78,6 +78,10 @@ extern int restrict_link_by_ca(struct key *dest_keyring, const struct key_type *type, const union key_payload *payload, struct key *trust_keyring); +int restrict_link_by_digsig(struct key *dest_keyring, + const struct key_type *type, + const union key_payload *payload, + struct key *trust_keyring); #else static inline int restrict_link_by_ca(struct key *dest_keyring, const struct key_type *type, @@ -86,6 +90,14 @@ static inline int restrict_link_by_ca(struct key *dest_keyring, { return 0; } + +static inline int restrict_link_by_digsig(struct key *dest_keyring, + const struct key_type *type, + const union key_payload *payload, + struct key *trust_keyring) +{ + return 0; +} #endif extern int query_asymmetric_key(const struct kernel_pkey_params *, |