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authorDmitry Kasatkin <dmitry.kasatkin@huawei.com>2015-10-22 21:26:32 +0300
committerMimi Zohar <zohar@linux.vnet.ibm.com>2015-12-15 08:53:36 -0500
commit7626676320f398980a6bb4490fd58e924c888f6a (patch)
treebb852548419b70be34dc7f32765d70bd94cd8bbb /net/hsr
parent26ddabfe96bb7468763c9c92791404d991b16250 (diff)
evm: provide a function to set the EVM key from the kernel
A crypto HW kernel module can possibly initialize the EVM key from the kernel __init code to enable EVM before calling the 'init' process. This patch provides a function evm_set_key() to set the EVM key directly without using the KEY subsystem. Changes in v4: * kernel-doc style for evm_set_key Changes in v3: * error reporting moved to evm_set_key * EVM_INIT_HMAC moved to evm_set_key * added bitop to prevent key setting race Changes in v2: * use size_t for key size instead of signed int * provide EVM_MAX_KEY_SIZE macro in <linux/evm.h> * provide EVM_MIN_KEY_SIZE macro in <linux/evm.h> Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@huawei.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
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