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 000000000..c20699576 --- /dev/null +++ b/recipes-kernel/cryptodev/sdk_patches/0036-add-compat-for-CIOCHASH-operation.patch | |||
| @@ -0,0 +1,120 @@ | |||
| 1 | From 711529cc7b8743ae8c9c0db4980ac15f7acb8618 Mon Sep 17 00:00:00 2001 | ||
| 2 | From: Alex Porosanu <alexandru.porosanu@nxp.com> | ||
| 3 | Date: Tue, 12 Jan 2016 14:51:00 +0200 | ||
| 4 | Subject: [PATCH 36/38] add compat for CIOCHASH operation | ||
| 5 | |||
| 6 | This patch adds the necessary ioctl for using the CIOCHASH | ||
| 7 | operation for different userspace & kernel (i.e. 32b userspace | ||
| 8 | and 64b kernel). | ||
| 9 | |||
| 10 | Signed-off-by: Alex Porosanu <alexandru.porosanu@nxp.com> | ||
| 11 | --- | ||
| 12 | cryptodev_int.h | 14 +++++++++++++- | ||
| 13 | ioctl.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ | ||
| 14 | 2 files changed, 63 insertions(+), 1 deletion(-) | ||
| 15 | |||
| 16 | diff --git a/cryptodev_int.h b/cryptodev_int.h | ||
| 17 | index 74c295a..6dcfd69 100644 | ||
| 18 | --- a/cryptodev_int.h | ||
| 19 | +++ b/cryptodev_int.h | ||
| 20 | @@ -129,6 +129,18 @@ struct compat_crypt_auth_op { | ||
| 21 | uint32_t iv_len; | ||
| 22 | }; | ||
| 23 | |||
| 24 | +struct compat_hash_op_data { | ||
| 25 | + compat_uptr_t ses; | ||
| 26 | + uint32_t mac_op; /* cryptodev_crypto_op_t */ | ||
| 27 | + compat_uptr_t mackey; | ||
| 28 | + uint32_t mackeylen; | ||
| 29 | + | ||
| 30 | + uint16_t flags; /* see COP_FLAG_* */ | ||
| 31 | + uint32_t len; /* length of source data */ | ||
| 32 | + compat_uptr_t src; /* source data */ | ||
| 33 | + compat_uptr_t mac_result; | ||
| 34 | +}; | ||
| 35 | + | ||
| 36 | /* compat ioctls, defined for the above structs */ | ||
| 37 | #define COMPAT_CIOCGSESSION _IOWR('c', 102, struct compat_session_op) | ||
| 38 | #define COMPAT_CIOCCRYPT _IOWR('c', 104, struct compat_crypt_op) | ||
| 39 | @@ -139,7 +151,7 @@ struct compat_crypt_auth_op { | ||
| 40 | #define COMPAT_CIOCASYMASYNCRYPT _IOW('c', 110, struct compat_crypt_kop) | ||
| 41 | #define COMPAT_CIOCASYMFETCHCOOKIE _IOR('c', 111, \ | ||
| 42 | struct compat_pkc_cookie_list_s) | ||
| 43 | - | ||
| 44 | +#define COMPAT_CIOCHASH _IOWR('c', 114, struct compat_hash_op_data) | ||
| 45 | #endif /* CONFIG_COMPAT */ | ||
| 46 | |||
| 47 | /* kernel-internal extension to struct crypt_kop */ | ||
| 48 | diff --git a/ioctl.c b/ioctl.c | ||
| 49 | index a052614..ff3de44 100644 | ||
| 50 | --- a/ioctl.c | ||
| 51 | +++ b/ioctl.c | ||
| 52 | @@ -1435,8 +1435,11 @@ cryptodev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg_) | ||
| 53 | struct fcrypt *fcr; | ||
| 54 | struct session_op sop; | ||
| 55 | struct compat_session_op compat_sop; | ||
| 56 | + struct kernel_hash_op khop; | ||
| 57 | struct kernel_crypt_op kcop; | ||
| 58 | struct kernel_crypt_auth_op kcaop; | ||
| 59 | + struct compat_hash_op_data compat_hash_op_data; | ||
| 60 | + | ||
| 61 | int ret; | ||
| 62 | |||
| 63 | if (unlikely(!pcr)) | ||
| 64 | @@ -1499,6 +1502,53 @@ cryptodev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg_) | ||
| 65 | |||
| 66 | return compat_kcop_to_user(&kcop, fcr, arg); | ||
| 67 | |||
| 68 | + case COMPAT_CIOCHASH: | ||
| 69 | + /* get session */ | ||
| 70 | + if (unlikely(copy_from_user(&compat_hash_op_data, arg, | ||
| 71 | + sizeof(struct compat_hash_op_data)))) { | ||
| 72 | + pr_err("copy from user fault\n"); | ||
| 73 | + return -EFAULT; | ||
| 74 | + } | ||
| 75 | + | ||
| 76 | + khop.task = current; | ||
| 77 | + khop.mm = current->mm; | ||
| 78 | + | ||
| 79 | + khop.hash_op.mac_op = compat_hash_op_data.mac_op; | ||
| 80 | + khop.hash_op.mackey = compat_ptr(compat_hash_op_data.mackey); | ||
| 81 | + khop.hash_op.mackeylen = compat_hash_op_data.mackeylen; | ||
| 82 | + khop.hash_op.flags = compat_hash_op_data.flags; | ||
| 83 | + khop.hash_op.len = compat_hash_op_data.len; | ||
| 84 | + khop.hash_op.src = compat_ptr(compat_hash_op_data.src); | ||
| 85 | + khop.hash_op.mac_result = | ||
| 86 | + compat_ptr(compat_hash_op_data.mac_result); | ||
| 87 | + | ||
| 88 | + ret = hash_create_session(&khop.hash_op); | ||
| 89 | + if (unlikely(ret)) { | ||
| 90 | + pr_err("can't get session\n"); | ||
| 91 | + return ret; | ||
| 92 | + } | ||
| 93 | + | ||
| 94 | + /* do hashing */ | ||
| 95 | + ret = hash_run(&khop); | ||
| 96 | + if (unlikely(ret)) { | ||
| 97 | + dwarning(1, "Error in hash run"); | ||
| 98 | + return ret; | ||
| 99 | + } | ||
| 100 | + | ||
| 101 | + ret = copy_to_user(khop.hash_op.mac_result, khop.hash_output, | ||
| 102 | + khop.digestsize); | ||
| 103 | + if (unlikely(ret)) { | ||
| 104 | + dwarning(1, "Error in copy to user"); | ||
| 105 | + return ret; | ||
| 106 | + } | ||
| 107 | + | ||
| 108 | + copy_to_user(arg, &compat_hash_op_data, | ||
| 109 | + sizeof(struct compat_hash_op_data)); | ||
| 110 | + | ||
| 111 | + /* put session */ | ||
| 112 | + hash_destroy_session(khop.hash_op.ses); | ||
| 113 | + return 0; | ||
| 114 | + | ||
| 115 | case COMPAT_CIOCAUTHCRYPT: | ||
| 116 | if (unlikely(ret = compat_kcaop_from_user(&kcaop, fcr, arg))) { | ||
| 117 | dprintk(1, KERN_WARNING, "Error copying from user\n"); | ||
| 118 | -- | ||
| 119 | 2.7.0 | ||
| 120 | |||
