diff options
Diffstat (limited to 'recipes-kernel/cryptodev/sdk_patches/0034-extend-API-with-CIOCHASH-to-support-direct-hash-oper.patch')
| -rw-r--r-- | recipes-kernel/cryptodev/sdk_patches/0034-extend-API-with-CIOCHASH-to-support-direct-hash-oper.patch | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/recipes-kernel/cryptodev/sdk_patches/0034-extend-API-with-CIOCHASH-to-support-direct-hash-oper.patch b/recipes-kernel/cryptodev/sdk_patches/0034-extend-API-with-CIOCHASH-to-support-direct-hash-oper.patch new file mode 100644 index 0000000..3a1f0c0 --- /dev/null +++ b/recipes-kernel/cryptodev/sdk_patches/0034-extend-API-with-CIOCHASH-to-support-direct-hash-oper.patch @@ -0,0 +1,114 @@ +From c43fa74b9ed11f0183d25b21486b71fe02d84de7 Mon Sep 17 00:00:00 2001 +From: Cristian Stoica <cristian.stoica@nxp.com> +Date: Tue, 15 Dec 2015 15:31:47 +0200 +Subject: [PATCH 34/38] extend API with CIOCHASH to support direct hash + operations + +Signed-off-by: Cristian Stoica <cristian.stoica@nxp.com> +--- + crypto/cryptodev.h | 16 ++++++++++++++++ + ioctl.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ + 2 files changed, 65 insertions(+) + +diff --git a/crypto/cryptodev.h b/crypto/cryptodev.h +index f6058ca..c6083f7 100644 +--- a/crypto/cryptodev.h ++++ b/crypto/cryptodev.h +@@ -167,6 +167,19 @@ struct crypt_auth_op { + __u32 iv_len; + }; + ++/* data container for CIOCHASH operations */ ++struct hash_op_data { ++ __u32 ses; /* session identifier */ ++ __u32 mac_op; /* cryptodev_crypto_op_t */ ++ __u8 *mackey; ++ __u32 mackeylen; ++ ++ __u16 flags; /* see COP_FLAG_* */ ++ __u32 len; /* length of source data */ ++ __u8 *src; /* source data */ ++ __u8 *mac_result; ++}; ++ + /* In plain AEAD mode the following are required: + * flags : 0 + * iv : the initialization vector (12 bytes) +@@ -325,4 +338,7 @@ enum cryptodev_crk_op_t { + /* additional ioctls for asynchronous operation for asymmetric ciphers*/ + #define CIOCASYMASYNCRYPT _IOW('c', 112, struct crypt_kop) + #define CIOCASYMFETCHCOOKIE _IOR('c', 113, struct pkc_cookie_list_s) ++ ++#define CIOCHASH _IOWR('c', 114, struct hash_op_data) ++ + #endif /* L_CRYPTODEV_H */ +diff --git a/ioctl.c b/ioctl.c +index 7adde75..3763954 100644 +--- a/ioctl.c ++++ b/ioctl.c +@@ -960,6 +960,7 @@ cryptodev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg_) + void __user *arg = (void __user *)arg_; + int __user *p = arg; + struct session_op sop; ++ struct hash_op_data hash_op; + struct kernel_crypt_op kcop; + struct kernel_crypt_auth_op kcaop; + struct crypt_priv *pcr = filp->private_data; +@@ -1049,6 +1050,54 @@ cryptodev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg_) + } + + return kcop_to_user(&kcop, fcr, arg); ++ case CIOCHASH: ++ /* get session */ ++ if (unlikely(copy_from_user(&hash_op, arg, sizeof(struct hash_op_data)))) { ++ pr_err("copy from user fault\n"); ++ return -EFAULT; ++ } ++ ++ sop.cipher = 0; ++ sop.mac = hash_op.mac_op; ++ sop.mackey = hash_op.mackey; ++ sop.mackeylen = hash_op.mackeylen; ++ ++ /* writes sop.ses as a side-effect */ ++ ret = crypto_create_session(fcr, &sop); ++ if (unlikely(ret)) { ++ pr_err("can't get session\n"); ++ return ret; ++ } ++ ++ /* do hashing */ ++ kcop.cop.ses = sop.ses; ++ kcop.cop.flags = hash_op.flags; ++ kcop.cop.len = hash_op.len; ++ kcop.cop.src = hash_op.src; ++ kcop.cop.mac = hash_op.mac_result; ++ kcop.cop.dst = 0; ++ kcop.cop.op = 0; ++ kcop.cop.iv = 0; ++ kcop.ivlen = 0; ++ kcop.digestsize = 0; /* will be updated during operation */ ++ kcop.task = current; ++ kcop.mm = current->mm; ++ ++ ret = crypto_run(fcr, &kcop); ++ if (unlikely(ret)) { ++ dwarning(1, "Error in hash run"); ++ return ret; ++ } ++ ++ ret = copy_to_user(kcop.cop.mac, kcop.hash_output, kcop.digestsize); ++ if (unlikely(ret)) { ++ dwarning(1, "Error in copy to user"); ++ return ret; ++ } ++ ++ /* put session */ ++ ret = crypto_finish_session(fcr, sop.ses); ++ return 0; + case CIOCAUTHCRYPT: + if (unlikely(ret = kcaop_from_user(&kcaop, fcr, arg))) { + dwarning(1, "Error copying from user"); +-- +2.7.0 + |