1*1ebd4a3cSEric Biggers /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*1ebd4a3cSEric Biggers #ifndef _UAPI_LINUX_BLK_CRYPTO_H 3*1ebd4a3cSEric Biggers #define _UAPI_LINUX_BLK_CRYPTO_H 4*1ebd4a3cSEric Biggers 5*1ebd4a3cSEric Biggers #include <linux/ioctl.h> 6*1ebd4a3cSEric Biggers #include <linux/types.h> 7*1ebd4a3cSEric Biggers 8*1ebd4a3cSEric Biggers struct blk_crypto_import_key_arg { 9*1ebd4a3cSEric Biggers /* Raw key (input) */ 10*1ebd4a3cSEric Biggers __u64 raw_key_ptr; 11*1ebd4a3cSEric Biggers __u64 raw_key_size; 12*1ebd4a3cSEric Biggers /* Long-term wrapped key blob (output) */ 13*1ebd4a3cSEric Biggers __u64 lt_key_ptr; 14*1ebd4a3cSEric Biggers __u64 lt_key_size; 15*1ebd4a3cSEric Biggers __u64 reserved[4]; 16*1ebd4a3cSEric Biggers }; 17*1ebd4a3cSEric Biggers 18*1ebd4a3cSEric Biggers struct blk_crypto_generate_key_arg { 19*1ebd4a3cSEric Biggers /* Long-term wrapped key blob (output) */ 20*1ebd4a3cSEric Biggers __u64 lt_key_ptr; 21*1ebd4a3cSEric Biggers __u64 lt_key_size; 22*1ebd4a3cSEric Biggers __u64 reserved[4]; 23*1ebd4a3cSEric Biggers }; 24*1ebd4a3cSEric Biggers 25*1ebd4a3cSEric Biggers struct blk_crypto_prepare_key_arg { 26*1ebd4a3cSEric Biggers /* Long-term wrapped key blob (input) */ 27*1ebd4a3cSEric Biggers __u64 lt_key_ptr; 28*1ebd4a3cSEric Biggers __u64 lt_key_size; 29*1ebd4a3cSEric Biggers /* Ephemerally-wrapped key blob (output) */ 30*1ebd4a3cSEric Biggers __u64 eph_key_ptr; 31*1ebd4a3cSEric Biggers __u64 eph_key_size; 32*1ebd4a3cSEric Biggers __u64 reserved[4]; 33*1ebd4a3cSEric Biggers }; 34*1ebd4a3cSEric Biggers 35*1ebd4a3cSEric Biggers /* 36*1ebd4a3cSEric Biggers * These ioctls share the block device ioctl space; see uapi/linux/fs.h. 37*1ebd4a3cSEric Biggers * 140-141 are reserved for future blk-crypto ioctls; any more than that would 38*1ebd4a3cSEric Biggers * require an additional allocation from the block device ioctl space. 39*1ebd4a3cSEric Biggers */ 40*1ebd4a3cSEric Biggers #define BLKCRYPTOIMPORTKEY _IOWR(0x12, 137, struct blk_crypto_import_key_arg) 41*1ebd4a3cSEric Biggers #define BLKCRYPTOGENERATEKEY _IOWR(0x12, 138, struct blk_crypto_generate_key_arg) 42*1ebd4a3cSEric Biggers #define BLKCRYPTOPREPAREKEY _IOWR(0x12, 139, struct blk_crypto_prepare_key_arg) 43*1ebd4a3cSEric Biggers 44*1ebd4a3cSEric Biggers #endif /* _UAPI_LINUX_BLK_CRYPTO_H */ 45