Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * fs-verity module initialization and logging
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright 2019 Google LLC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include "fsverity_private.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/ratelimit.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) void fsverity_msg(const struct inode *inode, const char *level,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		  const char *fmt, ...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 				      DEFAULT_RATELIMIT_BURST);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	struct va_format vaf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	va_list args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	if (!__ratelimit(&rs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	va_start(args, fmt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	vaf.fmt = fmt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	vaf.va = &args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	if (inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		printk("%sfs-verity (%s, inode %lu): %pV\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		       level, inode->i_sb->s_id, inode->i_ino, &vaf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		printk("%sfs-verity: %pV\n", level, &vaf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	va_end(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static int __init fsverity_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	fsverity_check_hash_algs();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	err = fsverity_init_info_cache();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	err = fsverity_init_workqueue();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		goto err_exit_info_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	err = fsverity_init_signature();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		goto err_exit_workqueue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	pr_debug("Initialized fs-verity\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) err_exit_workqueue:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	fsverity_exit_workqueue();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) err_exit_info_cache:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	fsverity_exit_info_cache();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) late_initcall(fsverity_init)