// SPDX-License-Identifier: GPL-2.0-only/* * Copyright (C) 2008 IBM Corporation * Author: Mimi Zohar <zohar@us.ibm.com> * * File: integrity_audit.c *	Audit calls for the integrity subsystem */ #include <linux/fs.h>#include <linux/gfp.h>#include <linux/audit.h>#include "integrity.h" static int integrity_audit_info; /* ima_audit_setup - enable informational auditing messages */static int __init integrity_audit_setup(char *str){	unsigned long audit; 	if (!kstrtoul(str, 0, &audit))		integrity_audit_info = audit ? 1 : 0;	return 1;}__setup("integrity_audit=", integrity_audit_setup); void integrity_audit_msg(int audit_msgno, struct inode *inode,			 const unsigned char *fname, const char *op,			 const char *cause, int result, int audit_info){	integrity_audit_message(audit_msgno, inode, fname, op, cause,				result, audit_info, 0);} void integrity_audit_message(int audit_msgno, struct inode *inode,			     const unsigned char *fname, const char *op,			     const char *cause, int result, int audit_info,			     int errno){	struct audit_buffer *ab;	char name[TASK_COMM_LEN]; 	if (!integrity_audit_info && audit_info == 1)	/* Skip info messages */		return; 	ab = audit_log_start(audit_context(), GFP_KERNEL, audit_msgno);	if (!ab)		return;	audit_log_format(ab, "pid=%d uid=%u auid=%u ses=%u",			 task_pid_nr(current),			 from_kuid(&init_user_ns, current_uid()),			 from_kuid(&init_user_ns, audit_get_loginuid(current)),			 audit_get_sessionid(current));	audit_log_task_context(ab);	audit_log_format(ab, " op=%s cause=%s comm=", op, cause);	audit_log_untrustedstring(ab, get_task_comm(name, current));	if (fname) {		audit_log_format(ab, " name=");		audit_log_untrustedstring(ab, fname);	}	if (inode) {		audit_log_format(ab, " dev=");		audit_log_untrustedstring(ab, inode->i_sb->s_id);		audit_log_format(ab, " ino=%llu", inode->i_ino);	}	audit_log_format(ab, " res=%d errno=%d", !result, errno);	audit_log_end(ab);}