diff options
Diffstat (limited to 'recipes-kernel/cryptodev/sdk_patches/0036-add-compat-for-CIOCHASH-operation.patch')
| -rw-r--r-- | recipes-kernel/cryptodev/sdk_patches/0036-add-compat-for-CIOCHASH-operation.patch | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/recipes-kernel/cryptodev/sdk_patches/0036-add-compat-for-CIOCHASH-operation.patch b/recipes-kernel/cryptodev/sdk_patches/0036-add-compat-for-CIOCHASH-operation.patch new file mode 100644 index 00000000..c2069957 --- /dev/null +++ b/recipes-kernel/cryptodev/sdk_patches/0036-add-compat-for-CIOCHASH-operation.patch @@ -0,0 +1,120 @@ +From 711529cc7b8743ae8c9c0db4980ac15f7acb8618 Mon Sep 17 00:00:00 2001 +From: Alex Porosanu <alexandru.porosanu@nxp.com> +Date: Tue, 12 Jan 2016 14:51:00 +0200 +Subject: [PATCH 36/38] add compat for CIOCHASH operation + +This patch adds the necessary ioctl for using the CIOCHASH +operation for different userspace & kernel (i.e. 32b userspace +and 64b kernel). + +Signed-off-by: Alex Porosanu <alexandru.porosanu@nxp.com> +--- + cryptodev_int.h | 14 +++++++++++++- + ioctl.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ + 2 files changed, 63 insertions(+), 1 deletion(-) + +diff --git a/cryptodev_int.h b/cryptodev_int.h +index 74c295a..6dcfd69 100644 +--- a/cryptodev_int.h ++++ b/cryptodev_int.h +@@ -129,6 +129,18 @@ struct compat_crypt_auth_op { + uint32_t iv_len; + }; + ++struct compat_hash_op_data { ++ compat_uptr_t ses; ++ uint32_t mac_op; /* cryptodev_crypto_op_t */ ++ compat_uptr_t mackey; ++ uint32_t mackeylen; ++ ++ uint16_t flags; /* see COP_FLAG_* */ ++ uint32_t len; /* length of source data */ ++ compat_uptr_t src; /* source data */ ++ compat_uptr_t mac_result; ++}; ++ + /* compat ioctls, defined for the above structs */ + #define COMPAT_CIOCGSESSION _IOWR('c', 102, struct compat_session_op) + #define COMPAT_CIOCCRYPT _IOWR('c', 104, struct compat_crypt_op) +@@ -139,7 +151,7 @@ struct compat_crypt_auth_op { + #define COMPAT_CIOCASYMASYNCRYPT _IOW('c', 110, struct compat_crypt_kop) + #define COMPAT_CIOCASYMFETCHCOOKIE _IOR('c', 111, \ + struct compat_pkc_cookie_list_s) +- ++#define COMPAT_CIOCHASH _IOWR('c', 114, struct compat_hash_op_data) + #endif /* CONFIG_COMPAT */ + + /* kernel-internal extension to struct crypt_kop */ +diff --git a/ioctl.c b/ioctl.c +index a052614..ff3de44 100644 +--- a/ioctl.c ++++ b/ioctl.c +@@ -1435,8 +1435,11 @@ cryptodev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg_) + struct fcrypt *fcr; + struct session_op sop; + struct compat_session_op compat_sop; ++ struct kernel_hash_op khop; + struct kernel_crypt_op kcop; + struct kernel_crypt_auth_op kcaop; ++ struct compat_hash_op_data compat_hash_op_data; ++ + int ret; + + if (unlikely(!pcr)) +@@ -1499,6 +1502,53 @@ cryptodev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg_) + + return compat_kcop_to_user(&kcop, fcr, arg); + ++ case COMPAT_CIOCHASH: ++ /* get session */ ++ if (unlikely(copy_from_user(&compat_hash_op_data, arg, ++ sizeof(struct compat_hash_op_data)))) { ++ pr_err("copy from user fault\n"); ++ return -EFAULT; ++ } ++ ++ khop.task = current; ++ khop.mm = current->mm; ++ ++ khop.hash_op.mac_op = compat_hash_op_data.mac_op; ++ khop.hash_op.mackey = compat_ptr(compat_hash_op_data.mackey); ++ khop.hash_op.mackeylen = compat_hash_op_data.mackeylen; ++ khop.hash_op.flags = compat_hash_op_data.flags; ++ khop.hash_op.len = compat_hash_op_data.len; ++ khop.hash_op.src = compat_ptr(compat_hash_op_data.src); ++ khop.hash_op.mac_result = ++ compat_ptr(compat_hash_op_data.mac_result); ++ ++ ret = hash_create_session(&khop.hash_op); ++ if (unlikely(ret)) { ++ pr_err("can't get session\n"); ++ return ret; ++ } ++ ++ /* do hashing */ ++ ret = hash_run(&khop); ++ if (unlikely(ret)) { ++ dwarning(1, "Error in hash run"); ++ return ret; ++ } ++ ++ ret = copy_to_user(khop.hash_op.mac_result, khop.hash_output, ++ khop.digestsize); ++ if (unlikely(ret)) { ++ dwarning(1, "Error in copy to user"); ++ return ret; ++ } ++ ++ copy_to_user(arg, &compat_hash_op_data, ++ sizeof(struct compat_hash_op_data)); ++ ++ /* put session */ ++ hash_destroy_session(khop.hash_op.ses); ++ return 0; ++ + case COMPAT_CIOCAUTHCRYPT: + if (unlikely(ret = compat_kcaop_from_user(&kcaop, fcr, arg))) { + dprintk(1, KERN_WARNING, "Error copying from user\n"); +-- +2.7.0 + |