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Bottomley" , "Martin K. Petersen" , Eric Biggers , "Theodore Y. Ts'o" , Jaegeuk Kim , Alexander Viro , Christian Brauner , Jan Kara , Bjorn Andersson , Konrad Dybcio , Manivannan Sadhasivam , Dmitry Baryshkov , Gaurav Kashyap , Neil Armstrong Cc: linux-block@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, dm-devel@lists.linux.dev, linux-mmc@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Bartosz Golaszewski , Om Prakash Singh X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2542; i=bartosz.golaszewski@linaro.org; h=from:subject:message-id; bh=+ALSGPhqSpFCx8VMqBEOHa6jvoZdtMRVH6U+tA0zR4E=; b=owEBbQKS/ZANAwAKARGnLqAUcddyAcsmYgBm20TZHG7mGdP2yFeDCgoTznf05+6dq0aY36CmD ovuEoC17GGJAjMEAAEKAB0WIQQWnetsC8PEYBPSx58Rpy6gFHHXcgUCZttE2QAKCRARpy6gFHHX cvO+EACvuksLWfnKBrpniQe6Iv46e+yJoHo4yghwKDIwAlpdFhXkGYmt3z+Gp7mfW0cxBUxfka9 rbbHdcBUVhp0aToj3CBkm2cy7u1llGhn81wyzAAnD15+roJfk7DF/aVr/g5cD/9/VYeFDIbfOv+ DRx+YXZ35DpsSrmRTc78cbOrGqnmDrfhvuMS4K2fvH1UmSr64s7ZLu5mp6HEBi3L71dla+m43bV VuaJYK8DX7rpHG7oKOa/fjD/DLlP04HbHg/QvuVQohrSPRFYsX6mtar7jpPB37vWz7VW7BGCEab drRBSAcK/iGAXD5hCj02WE9aZmm8yUQSVGzAaY0TcvHkmv4J9xNCvgjy6XvFvZDAaJdnegxMQ+F VyIfdTDqkCWAusDHI8eEJ4HWTVlj4jYiItMj5bDIqYiTTJ5pqjK7JMAw2I7Y2Ej9GtvGOx9M5gn tLhLOxDydraJ86bvBW4Qq9rZuOQBdkZIFHUdi/EPIXZhYQuaWQBmwzBrfgCPEKe1WTAQbZDnI/L uyWHZaubRrkuTJ91tvyPm5nzOwjl63ZmqvKG68cdMAts44qlQCptRNkt+qqozMqPNUyl+7eqr3v 4J3pEiueN/55h6WuFK53jEUlbIIMSVxr4/xNMIUKVsTB0n45VAb4nd+FGuIASPsWqBrtg2AVKs3 nnleYxvy0CG/O4g== X-Developer-Key: i=bartosz.golaszewski@linaro.org; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 From: Gaurav Kashyap The block layer now allows storage controllers to implement the operations for handling wrapped keys. We can now extend the UFS core to also support them by reaching into the block layer. Add hooks corresponding with the existing crypto operations lower on the stack. Tested-by: Neil Armstrong Reviewed-by: Om Prakash Singh Signed-off-by: Gaurav Kashyap Signed-off-by: Bartosz Golaszewski --- drivers/ufs/core/ufshcd-crypto.c | 41 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/drivers/ufs/core/ufshcd-crypto.c b/drivers/ufs/core/ufshcd-crypto.c index 2530239d42af..49c0784f2432 100644 --- a/drivers/ufs/core/ufshcd-crypto.c +++ b/drivers/ufs/core/ufshcd-crypto.c @@ -145,10 +145,51 @@ bool ufshcd_crypto_enable(struct ufs_hba *hba) return true; } +static int ufshcd_crypto_generate_key(struct blk_crypto_profile *profile, + u8 lt_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]) +{ + struct ufs_hba *hba = + container_of(profile, struct ufs_hba, crypto_profile); + + if (hba->vops && hba->vops->generate_key) + return hba->vops->generate_key(hba, lt_key); + + return -EOPNOTSUPP; +} + +static int ufshcd_crypto_prepare_key(struct blk_crypto_profile *profile, + const u8 *lt_key, size_t lt_key_size, + u8 eph_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]) +{ + struct ufs_hba *hba = + container_of(profile, struct ufs_hba, crypto_profile); + + if (hba->vops && hba->vops->prepare_key) + return hba->vops->prepare_key(hba, lt_key, lt_key_size, eph_key); + + return -EOPNOTSUPP; +} + +static int ufshcd_crypto_import_key(struct blk_crypto_profile *profile, + const u8 *imp_key, size_t imp_key_size, + u8 lt_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE]) +{ + struct ufs_hba *hba = + container_of(profile, struct ufs_hba, crypto_profile); + + if (hba->vops && hba->vops->import_key) + return hba->vops->import_key(hba, imp_key, imp_key_size, lt_key); + + return -EOPNOTSUPP; +} + static const struct blk_crypto_ll_ops ufshcd_crypto_ops = { .keyslot_program = ufshcd_crypto_keyslot_program, .keyslot_evict = ufshcd_crypto_keyslot_evict, .derive_sw_secret = ufshcd_crypto_derive_sw_secret, + .generate_key = ufshcd_crypto_generate_key, + .prepare_key = ufshcd_crypto_prepare_key, + .import_key = ufshcd_crypto_import_key, }; static enum blk_crypto_mode_num