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authorDavid Howells <dhowells@redhat.com>2012-09-26 10:09:51 +0100
committerRusty Russell <rusty@rustcorp.com.au>2012-10-10 20:01:22 +1030
commit631cc66eb9eaa7296e303197ff1eb0f55e32b61d (patch)
tree631c962060a776a16ec35c477e99d4ef87c8db24 /kernel/module-internal.h
parentMODSIGN: Automatically generate module signing keys if missing (diff)
downloadlinux-dev-631cc66eb9eaa7296e303197ff1eb0f55e32b61d.tar.xz
linux-dev-631cc66eb9eaa7296e303197ff1eb0f55e32b61d.zip
MODSIGN: Provide module signing public keys to the kernel
Include a PGP keyring containing the public keys required to perform module verification in the kernel image during build and create a special keyring during boot which is then populated with keys of crypto type holding the public keys found in the PGP keyring. These can be seen by root: [root@andromeda ~]# cat /proc/keys 07ad4ee0 I----- 1 perm 3f010000 0 0 crypto modsign.0: RSA 87b9b3bd [] 15c7f8c3 I----- 1 perm 1f030000 0 0 keyring .module_sign: 1/4 ... It is probably worth permitting root to invalidate these keys, resulting in their removal and preventing further modules from being loaded with that key. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'kernel/module-internal.h')
-rw-r--r--kernel/module-internal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/module-internal.h b/kernel/module-internal.h
index 033c17fd70ef..6114a13419bd 100644
--- a/kernel/module-internal.h
+++ b/kernel/module-internal.h
@@ -9,5 +9,7 @@
* 2 of the Licence, or (at your option) any later version.
*/
+extern struct key *modsign_keyring;
+
extern int mod_verify_sig(const void *mod, unsigned long modlen,
const void *sig, unsigned long siglen);