add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/security/integrity/evm/evm_secfs.c
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@@ -1,23 +1,18 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) 2010 IBM Corporation
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  *
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  * Authors:
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  * Mimi Zohar <zohar@us.ibm.com>
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  *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation, version 2 of the License.
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- *
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  * File: evm_secfs.c
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  *	- Used to signal when key is on keyring
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  *	- Get the key and enable EVM
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  */
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-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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-
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 #include <linux/audit.h>
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 #include <linux/uaccess.h>
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-#include <linux/module.h>
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+#include <linux/init.h>
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 #include <linux/mutex.h>
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 #include "evm.h"
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..
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@@ -193,7 +188,8 @@
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 	if (count > XATTR_NAME_MAX)
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 		return -E2BIG;
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-	ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_INTEGRITY_EVM_XATTR);
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+	ab = audit_log_start(audit_context(), GFP_KERNEL,
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+			     AUDIT_INTEGRITY_EVM_XATTR);
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 	if (!ab)
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 		return -ENOMEM;
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..
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@@ -215,6 +211,9 @@
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 	if (len && xattr->name[len-1] == '\n')
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 		xattr->name[len-1] = '\0';
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+	audit_log_format(ab, "xattr=");
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+	audit_log_untrustedstring(ab, xattr->name);
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+
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 	if (strcmp(xattr->name, ".") == 0) {
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 		evm_xattrs_locked = 1;
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 		newattrs.ia_mode = S_IFREG | 0440;
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@@ -223,14 +222,10 @@
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 		inode_lock(inode);
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 		err = simple_setattr(evm_xattrs, &newattrs);
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 		inode_unlock(inode);
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-		audit_log_format(ab, "locked");
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 		if (!err)
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 			err = count;
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 		goto out;
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 	}
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-
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-	audit_log_format(ab, "xattr=");
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-	audit_log_untrustedstring(ab, xattr->name);
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 	if (strncmp(xattr->name, XATTR_SECURITY_PREFIX,
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 		    XATTR_SECURITY_PREFIX_LEN) != 0) {