// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (c) 2023 Huawei Device Co., Ltd.
 */

#include <linux/rbtree.h>
#include <../../crypto/asymmetric_keys/pkcs7_parser.h>

#ifndef _CODE_SIGN_H
#define _CODE_SIGN_H

struct cert_chain_info {
	__u32 signing_length;
	__u32 issuer_length;
	__u64 signing_ptr;
	__u64 issuer_ptr;
	__u32 path_len;
	__u8 __reserved[36];
};

struct cert_source {
	char *subject;
	char *issuer;
	int max_path_depth;
	struct rb_node node;
};

#define WRITE_CERT_CHAIN _IOW('k', 1, struct cert_chain_info)

#define CERT_CHAIN_PATH_LEN_MAX 3

/*
 * cert_chain.c
 */
struct cert_source *find_match(struct x509_certificate *cert);

int code_sign_open(struct inode *inode, struct file *filp);

int code_sign_release(struct inode *inode, struct file *filp);

long code_sign_ioctl(struct file *filp, unsigned int cmd, unsigned long args);

#endif /* _CODE_SIGN_H */