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securemsm-kernel: exposing smcinvoke headers

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We are exposing headers present in "include/linux" for the rest of the kernel DLKM's.
Aallow other kernel teams to access these headers.

Change-Id: I19c5591d885c7042ba3acd312ce9cb2bddc995c9
CRS-Fixed: 3338788
This commit is contained in:
Spencer Willett
2022-11-04 10:46:09 -07:00
committed by Gerrit - the friendly Code Review server
parent 8456ddc256
commit 9cd99dbb79
6 changed files with 14 additions and 9 deletions
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103
include/linux/smcinvoke.h Normal file
View File

@@ -0,0 +1,103 @@
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
*/
#ifndef _UAPI_SMCINVOKE_H_
#define _UAPI_SMCINVOKE_H_
#include <linux/types.h>
#include <linux/ioctl.h>
#define SMCINVOKE_USERSPACE_OBJ_NULL -1
struct smcinvoke_buf {
__u64 addr;
__u64 size;
};
struct smcinvoke_obj {
__s64 fd;
__s32 cb_server_fd;
__s32 reserved;
};
union smcinvoke_arg {
struct smcinvoke_buf b;
struct smcinvoke_obj o;
};
/*
* struct smcinvoke_cmd_req: This structure is transparently sent to TEE
* @op - Operation to be performed
* @counts - number of aruments passed
* @result - result of invoke operation
* @argsize - size of each of arguments
* @args - args is pointer to buffer having all arguments
*/
struct smcinvoke_cmd_req {
__u32 op;
__u32 counts;
__s32 result;
__u32 argsize;
__u64 args;
};
/*
* struct smcinvoke_accept: structure to process CB req from TEE
* @has_resp: IN: Whether IOCTL is carrying response data
* @txn_id: OUT: An id that should be passed as it is for response
* @result: IN: Outcome of operation op
* @cbobj_id: OUT: Callback object which is target of operation op
* @op: OUT: Operation to be performed on target object
* @counts: OUT: Number of arguments, embedded in buffer pointed by
* buf_addr, to complete operation
* @reserved: IN/OUT: Usage is not defined but should be set to 0.
* @argsize: IN: Size of any argument, all of equal size, embedded
* in buffer pointed by buf_addr
* @buf_len: IN: Len of buffer pointed by buf_addr
* @buf_addr: IN: Buffer containing all arguments which are needed
* to complete operation op
*/
struct smcinvoke_accept {
__u32 has_resp;
__u32 txn_id;
__s32 result;
__s32 cbobj_id;
__u32 op;
__u32 counts;
__s32 reserved;
__u32 argsize;
__u64 buf_len;
__u64 buf_addr;
};
/*
* @cb_buf_size: IN: Max buffer size for any callback obj implemented by client
*/
struct smcinvoke_server {
__u32 cb_buf_size;
};
#define SMCINVOKE_IOC_MAGIC 0x98
#define SMCINVOKE_IOCTL_INVOKE_REQ \
_IOWR(SMCINVOKE_IOC_MAGIC, 1, struct smcinvoke_cmd_req)
#define SMCINVOKE_IOCTL_ACCEPT_REQ \
_IOWR(SMCINVOKE_IOC_MAGIC, 2, struct smcinvoke_accept)
#define SMCINVOKE_IOCTL_SERVER_REQ \
_IOWR(SMCINVOKE_IOC_MAGIC, 3, struct smcinvoke_server)
#define SMCINVOKE_IOCTL_ACK_LOCAL_OBJ \
_IOWR(SMCINVOKE_IOC_MAGIC, 4, __s32)
/*
* smcinvoke logging buffer is for communicating with the smcinvoke driver additional
* info for debugging to be included in driver's log (if any)
*/
#define SMCINVOKE_LOG_BUF_SIZE 100
#define SMCINVOKE_IOCTL_LOG \
_IOC(_IOC_READ|_IOC_WRITE, SMCINVOKE_IOC_MAGIC, 255, SMCINVOKE_LOG_BUF_SIZE)
#endif /* _UAPI_SMCINVOKE_H_ */