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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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#ifndef __TEE_H#define __TEE_H
#include <linux/ioctl.h>#include <linux/types.h>
/* * This file describes the API provided by a TEE driver to user space. * * Each TEE driver defines a TEE specific protocol which is used for the * data passed back and forth using TEE_IOC_CMD. */
/* Helpers to make the ioctl defines */#define TEE_IOC_MAGIC 0xa4#define TEE_IOC_BASE 0
#define TEE_MAX_ARG_SIZE 4096
#define TEE_GEN_CAP_GP (1 << 0)/* GlobalPlatform compliant TEE */#define TEE_GEN_CAP_PRIVILEGED (1 << 1)/* Privileged device (for supplicant) */#define TEE_GEN_CAP_REG_MEM (1 << 2)/* Supports registering shared memory */#define TEE_GEN_CAP_MEMREF_NULL (1 << 3)/* NULL MemRef support */#define TEE_GEN_CAP_OBJREF (1 << 4)/* Supports generic object reference */
#define TEE_MEMREF_NULL ((__u64)(-1)) /* NULL MemRef Buffer */#define TEE_OBJREF_NULL ((__u64)(-1)) /* NULL ObjRef Object */
/* * TEE Implementation ID */#define TEE_IMPL_ID_OPTEE 1#define TEE_IMPL_ID_AMDTEE 2#define TEE_IMPL_ID_TSTEE 3#define TEE_IMPL_ID_QTEE 4
/* * OP-TEE specific capabilities */#define TEE_OPTEE_CAP_TZ (1 << 0)
/** * struct tee_ioctl_version_data - TEE version * @impl_id: [out] TEE implementation id * @impl_caps: [out] Implementation specific capabilities * @gen_caps: [out] Generic capabilities, defined by TEE_GEN_CAPS_* above * * Identifies the TEE implementation, @impl_id is one of TEE_IMPL_ID_* above. * @impl_caps is implementation specific, for example TEE_OPTEE_CAP_* * is valid when @impl_id == TEE_IMPL_ID_OPTEE. */struct tee_ioctl_version_data { __u32 impl_id; __u32 impl_caps; __u32 gen_caps;};
/** * TEE_IOC_VERSION - query version of TEE * * Takes a tee_ioctl_version_data struct and returns with the TEE version * data filled in. */#define TEE_IOC_VERSION _IOR(TEE_IOC_MAGIC, TEE_IOC_BASE + 0, \ struct tee_ioctl_version_data)
/** * struct tee_ioctl_shm_alloc_data - Shared memory allocate argument * @size: [in/out] Size of shared memory to allocate * @flags: [in/out] Flags to/from allocation. * @id: [out] Identifier of the shared memory * * The flags field should currently be zero as input. Updated by the call * with actual flags as defined by TEE_IOCTL_SHM_* above. * This structure is used as argument for TEE_IOC_SHM_ALLOC below. */struct tee_ioctl_shm_alloc_data { __u64 size; __u32 flags; __s32 id;};
/** * TEE_IOC_SHM_ALLOC - allocate shared memory * * Allocates shared memory between the user space process and secure OS. * * Returns a file descriptor on success or < 0 on failure * * The returned file descriptor is used to map the shared memory into user * space. The shared memory is freed when the descriptor is closed and the * memory is unmapped. */#define TEE_IOC_SHM_ALLOC _IOWR(TEE_IOC_MAGIC, TEE_IOC_BASE + 1, \ struct tee_ioctl_shm_alloc_data)
/** * struct tee_ioctl_buf_data - Variable sized buffer * @buf_ptr: [in] A __user pointer to a buffer * @buf_len: [in] Length of the buffer above * * Used as argument for TEE_IOC_OPEN_SESSION, TEE_IOC_INVOKE, * TEE_IOC_SUPPL_RECV, and TEE_IOC_SUPPL_SEND below. */struct tee_ioctl_buf_data { __u64 buf_ptr; __u64 buf_len;};
/* * Attributes for struct tee_ioctl_param, selects field in the union */#define TEE_IOCTL_PARAM_ATTR_TYPE_NONE 0 /* parameter not used */
/* * These defines value parameters (struct tee_ioctl_param_value) */#define TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INPUT 1#define TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_OUTPUT 2#define TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INOUT 3 /* input and output */
/* * These defines shared memory reference parameters (struct * tee_ioctl_param_memref) */#define TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INPUT 5#define TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_OUTPUT 6#define TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INOUT 7 /* input and output */
/* * These defines userspace buffer parameters. */#define TEE_IOCTL_PARAM_ATTR_TYPE_UBUF_INPUT 8#define TEE_IOCTL_PARAM_ATTR_TYPE_UBUF_OUTPUT 9#define TEE_IOCTL_PARAM_ATTR_TYPE_UBUF_INOUT 10 /* input and output */
/* * These defines object reference parameters. */#define TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF_INPUT 11#define TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF_OUTPUT 12#define TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF_INOUT 13
/* * Mask for the type part of the attribute, leaves room for more types */#define TEE_IOCTL_PARAM_ATTR_TYPE_MASK 0xff
/* Meta parameter carrying extra information about the message. */#define TEE_IOCTL_PARAM_ATTR_META 0x100
/* Mask of all known attr bits */#define TEE_IOCTL_PARAM_ATTR_MASK \ (TEE_IOCTL_PARAM_ATTR_TYPE_MASK | TEE_IOCTL_PARAM_ATTR_META)
/* * Matches TEEC_LOGIN_* in GP TEE Client API * Are only defined for GP compliant TEEs */#define TEE_IOCTL_LOGIN_PUBLIC 0#define TEE_IOCTL_LOGIN_USER 1#define TEE_IOCTL_LOGIN_GROUP 2#define TEE_IOCTL_LOGIN_APPLICATION 4#define TEE_IOCTL_LOGIN_USER_APPLICATION 5#define TEE_IOCTL_LOGIN_GROUP_APPLICATION 6/* * Disallow user-space to use GP implementation specific login * method range (0x80000000 - 0xBFFFFFFF). This range is rather * being reserved for REE kernel clients or TEE implementation. */#define TEE_IOCTL_LOGIN_REE_KERNEL_MIN 0x80000000#define TEE_IOCTL_LOGIN_REE_KERNEL_MAX 0xBFFFFFFF/* Private login method for REE kernel clients */#define TEE_IOCTL_LOGIN_REE_KERNEL 0x80000000
/** * struct tee_ioctl_param - parameter * @attr: attributes * @a: if a memref, offset into the shared memory object, * else if a ubuf, address of the user buffer, * else if an objref, object identifier, else a value parameter * @b: if a memref or ubuf, size of the buffer, * else if objref, flags for the object, else a value parameter * @c: if a memref, shared memory identifier, else a value parameter * * @attr & TEE_PARAM_ATTR_TYPE_MASK indicates if memref, ubuf, or value is * used in the union. TEE_PARAM_ATTR_TYPE_VALUE_* indicates value, * TEE_PARAM_ATTR_TYPE_MEMREF_* indicates memref, TEE_PARAM_ATTR_TYPE_UBUF_* * indicates ubuf, and TEE_PARAM_ATTR_TYPE_OBJREF_* indicates objref. * TEE_PARAM_ATTR_TYPE_NONE indicates that none of the members are used. * * Shared memory is allocated with TEE_IOC_SHM_ALLOC which returns an * identifier representing the shared memory object. A memref can reference * a part of a shared memory by specifying an offset (@a) and size (@b) of * the object. To supply the entire shared memory object set the offset * (@a) to 0 and size (@b) to the previously returned size of the object. * * A client may need to present a NULL pointer in the argument * passed to a trusted application in the TEE. * This is also a requirement in GlobalPlatform Client API v1.0c * (section 3.2.5 memory references), which can be found at * http://www.globalplatform.org/specificationsdevice.asp * * If a NULL pointer is passed to a TA in the TEE, the (@c) * IOCTL parameters value must be set to TEE_MEMREF_NULL indicating a NULL * memory reference. */struct tee_ioctl_param { __u64 attr; __u64 a; __u64 b; __u64 c;};
#define TEE_IOCTL_UUID_LEN 16
/** * struct tee_ioctl_open_session_arg - Open session argument * @uuid: [in] UUID of the Trusted Application * @clnt_uuid: [in] UUID of client * @clnt_login: [in] Login class of client, TEE_IOCTL_LOGIN_* above * @cancel_id: [in] Cancellation id, a unique value to identify this request * @session: [out] Session id * @ret: [out] return value * @ret_origin: [out] origin of the return value * @num_params: [in] number of &struct tee_ioctl_param entries in @params * @params: array of ioctl parameters */struct tee_ioctl_open_session_arg { __u8 uuid[TEE_IOCTL_UUID_LEN]; __u8 clnt_uuid[TEE_IOCTL_UUID_LEN]; __u32 clnt_login; __u32 cancel_id; __u32 session; __u32 ret; __u32 ret_origin; __u32 num_params; /* num_params tells the actual number of element in params */ struct tee_ioctl_param params[];};
/** * TEE_IOC_OPEN_SESSION - opens a session to a Trusted Application * * Takes a struct tee_ioctl_buf_data which contains a struct * tee_ioctl_open_session_arg followed by any array of struct * tee_ioctl_param */#define TEE_IOC_OPEN_SESSION _IOR(TEE_IOC_MAGIC, TEE_IOC_BASE + 2, \ struct tee_ioctl_buf_data)
/** * struct tee_ioctl_invoke_arg - Invokes a function in a Trusted Application * @func: [in] Trusted Application function, specific to the TA * @session: [in] Session id * @cancel_id: [in] Cancellation id, a unique value to identify this request * @ret: [out] return value * @ret_origin: [out] origin of the return value * @num_params: [in] number of parameters following this struct * @params: array of ioctl parameters */struct tee_ioctl_invoke_arg { __u32 func; __u32 session; __u32 cancel_id; __u32 ret; __u32 ret_origin; __u32 num_params; /* num_params tells the actual number of element in params */ struct tee_ioctl_param params[];};
/** * TEE_IOC_INVOKE - Invokes a function in a Trusted Application * * Takes a struct tee_ioctl_buf_data which contains a struct * tee_invoke_func_arg followed by any array of struct tee_param */#define TEE_IOC_INVOKE _IOR(TEE_IOC_MAGIC, TEE_IOC_BASE + 3, \ struct tee_ioctl_buf_data)
/** * struct tee_ioctl_cancel_arg - Cancels an open session or invoke ioctl * @cancel_id: [in] Cancellation id, a unique value to identify this request * @session: [in] Session id, if the session is opened, else set to 0 */struct tee_ioctl_cancel_arg { __u32 cancel_id; __u32 session;};
/** * TEE_IOC_CANCEL - Cancels an open session or invoke */#define TEE_IOC_CANCEL _IOR(TEE_IOC_MAGIC, TEE_IOC_BASE + 4, \ struct tee_ioctl_cancel_arg)
/** * struct tee_ioctl_close_session_arg - Closes an open session * @session: [in] Session id */struct tee_ioctl_close_session_arg { __u32 session;};
/** * TEE_IOC_CLOSE_SESSION - Closes a session */#define TEE_IOC_CLOSE_SESSION _IOR(TEE_IOC_MAGIC, TEE_IOC_BASE + 5, \ struct tee_ioctl_close_session_arg)
/** * struct tee_iocl_supp_recv_arg - Receive a request for a supplicant function * @func: [in] supplicant function * @num_params: [in/out] number of &struct tee_ioctl_param entries in @params * @params: array of ioctl parameters * * @num_params is the number of params that tee-supplicant has room to * receive when input, @num_params is the number of actual params * tee-supplicant receives when output. */struct tee_iocl_supp_recv_arg { __u32 func; __u32 num_params; /* num_params tells the actual number of element in params */ struct tee_ioctl_param params[];};
/** * TEE_IOC_SUPPL_RECV - Receive a request for a supplicant function * * Takes a struct tee_ioctl_buf_data which contains a struct * tee_iocl_supp_recv_arg followed by any array of struct tee_param */#define TEE_IOC_SUPPL_RECV _IOR(TEE_IOC_MAGIC, TEE_IOC_BASE + 6, \ struct tee_ioctl_buf_data)
/** * struct tee_iocl_supp_send_arg - Send a response to a received request * @ret: [out] return value * @num_params: [in] number of &struct tee_ioctl_param entries in @params * @params: array of ioctl parameters */struct tee_iocl_supp_send_arg { __u32 ret; __u32 num_params; /* num_params tells the actual number of element in params */ struct tee_ioctl_param params[];};
/** * TEE_IOC_SUPPL_SEND - Send a response to a received request * * Takes a struct tee_ioctl_buf_data which contains a struct * tee_iocl_supp_send_arg followed by any array of struct tee_param */#define TEE_IOC_SUPPL_SEND _IOR(TEE_IOC_MAGIC, TEE_IOC_BASE + 7, \ struct tee_ioctl_buf_data)
/** * struct tee_ioctl_shm_register_fd_data - Shared memory registering argument * @fd: [in] File descriptor identifying dmabuf reference * @size: [out] Size of referenced memory * @flags: [in] Flags to/from allocation. * @id: [out] Identifier of the shared memory * * The flags field should currently be zero as input. Updated by the call * with actual flags as defined by TEE_IOCTL_SHM_* above. * This structure is used as argument for TEE_IOC_SHM_REGISTER_FD below. */struct tee_ioctl_shm_register_fd_data { __s64 fd; __u64 size; __u32 flags; __s32 id;};
/** * TEE_IOC_SHM_REGISTER_FD - register a shared memory from a file descriptor * * Returns a file descriptor on success or < 0 on failure * * The returned file descriptor refers to the shared memory object in the * kernel. The supplied file descriptor can be closed if it's not needed * for other purposes. The shared memory is freed when the descriptor is * closed. */#define TEE_IOC_SHM_REGISTER_FD _IOWR(TEE_IOC_MAGIC, TEE_IOC_BASE + 8, \ struct tee_ioctl_shm_register_fd_data)
/** * struct tee_ioctl_shm_register_data - Shared memory register argument * @addr: [in] Start address of shared memory to register * @length: [in/out] Length of shared memory to register * @flags: [in/out] Flags to/from registration. * @id: [out] Identifier of the shared memory * * The flags field should currently be zero as input. Updated by the call * with actual flags as defined by TEE_IOCTL_SHM_* above. * This structure is used as argument for TEE_IOC_SHM_REGISTER below. */struct tee_ioctl_shm_register_data { __u64 addr; __u64 length; __u32 flags; __s32 id;};
/** * TEE_IOC_SHM_REGISTER - Register shared memory argument * * Registers shared memory between the user space process and secure OS. * * Returns a file descriptor on success or < 0 on failure * * The shared memory is unregistered when the descriptor is closed. */#define TEE_IOC_SHM_REGISTER _IOWR(TEE_IOC_MAGIC, TEE_IOC_BASE + 9, \ struct tee_ioctl_shm_register_data)/* * Five syscalls are used when communicating with the TEE driver. * open(): opens the device associated with the driver * ioctl(): as described above operating on the file descriptor from open() * close(): two cases * - closes the device file descriptor * - closes a file descriptor connected to allocated shared memory * mmap(): maps shared memory into user space using information from struct * tee_ioctl_shm_alloc_data * munmap(): unmaps previously shared memory */
/** * struct tee_ioctl_object_invoke_arg - Invokes an object in a * Trusted Application * @id: [in] Object id * @op: [in] Object operation, specific to the object * @ret: [out] return value * @num_params: [in] number of parameters following this struct * @params: array of ioctl parameters */struct tee_ioctl_object_invoke_arg { __u64 id; __u32 op; __u32 ret; __u32 num_params; __u32 :32; /* num_params tells the actual number of element in params */ struct tee_ioctl_param params[];};
#define TEE_IOC_OBJECT_INVOKE _IOR(TEE_IOC_MAGIC, TEE_IOC_BASE + 10, \ struct tee_ioctl_buf_data)
#endif /*__TEE_H*/