// SPDX-License-Identifier: GPL-2.0/* * fs-verity module initialization and logging * * Copyright 2019 Google LLC */ #define CREATE_TRACE_POINTS#include "fsverity_private.h" #include <linux/ratelimit.h> #ifdef CONFIG_SYSCTLstatic const struct ctl_table fsverity_sysctl_table[] = {#ifdef CONFIG_FS_VERITY_BUILTIN_SIGNATURES	{		.procname       = "require_signatures",		.data           = &fsverity_require_signatures,		.maxlen         = sizeof(int),		.mode           = 0644,		.proc_handler   = proc_dointvec_minmax,		.extra1         = SYSCTL_ZERO,		.extra2         = SYSCTL_ONE,	},#endif}; static void __init fsverity_init_sysctl(void){	register_sysctl_init("fs/verity", fsverity_sysctl_table);}#else /* CONFIG_SYSCTL */static inline void fsverity_init_sysctl(void){}#endif /* !CONFIG_SYSCTL */ void fsverity_msg(const struct inode *inode, const char *level,		  const char *fmt, ...){	static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL,				      DEFAULT_RATELIMIT_BURST);	struct va_format vaf;	va_list args; 	if (!__ratelimit(&rs))		return; 	va_start(args, fmt);	vaf.fmt = fmt;	vaf.va = &args;	if (inode)		printk("%sfs-verity (%s, inode %llu): %pV\n",		       level, inode->i_sb->s_id, inode->i_ino, &vaf);	else		printk("%sfs-verity: %pV\n", level, &vaf);	va_end(args);} static int __init fsverity_init(void){	fsverity_check_hash_algs();	fsverity_init_info_cache();	fsverity_init_workqueue();	fsverity_init_sysctl();	fsverity_init_signature();	fsverity_init_bpf();	return 0;}late_initcall(fsverity_init)