evm: enable EVM when X509 certificate is loaded
authorDmitry Kasatkin <dmitry.kasatkin@huawei.com>
Thu, 22 Oct 2015 18:26:26 +0000 (21:26 +0300)
committerMimi Zohar <zohar@linux.vnet.ibm.com>
Tue, 15 Dec 2015 13:50:48 +0000 (08:50 -0500)
commit26ddabfe96bb7468763c9c92791404d991b16250
tree1b97563509dec74394acdb7351bf15d130284909
parent2ce523eb8976a12de1a4fb6fe8ad0b09b5dafb31
evm: enable EVM when X509 certificate is loaded

In order to enable EVM before starting the 'init' process,
evm_initialized needs to be non-zero.  Previously non-zero indicated
that the HMAC key was loaded.  When EVM loads the X509 before calling
'init', with this patch it is now possible to enable EVM to start
signature based verification.

This patch defines bits to enable EVM if a key of any type is loaded.

Changes in v3:
* print error message if key is not set

Changes in v2:
* EVM_STATE_KEY_SET replaced by EVM_INIT_HMAC
* EVM_STATE_X509_SET replaced by EVM_INIT_X509

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
security/integrity/evm/evm.h
security/integrity/evm/evm_crypto.c
security/integrity/evm/evm_main.c
security/integrity/evm/evm_secfs.c