1 files changed, 108 insertions, 0 deletions
diff --git a/include/linux/evm.h b/include/linux/evm.h
new file mode 100644
index 000000000..8302bc29b
--- /dev/null
+++ b/include/linux/evm.h
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * evm.h
+ *
+ * Copyright (c) 2009 IBM Corporation
+ * Author: Mimi Zohar <zohar@us.ibm.com>
+ */
+
+#ifndef _LINUX_EVM_H
+#define _LINUX_EVM_H
+
+#include <linux/integrity.h>
+#include <linux/xattr.h>
+
+struct integrity_iint_cache;
+
+#ifdef CONFIG_EVM
+extern int evm_set_key(void *key, size_t keylen);
+extern enum integrity_status evm_verifyxattr(struct dentry *dentry,
+					     const char *xattr_name,
+					     void *xattr_value,
+					     size_t xattr_value_len,
+					     struct integrity_iint_cache *iint);
+extern int evm_inode_setattr(struct dentry *dentry, struct iattr *attr);
+extern void evm_inode_post_setattr(struct dentry *dentry, int ia_valid);
+extern int evm_inode_setxattr(struct dentry *dentry, const char *name,
+			      const void *value, size_t size);
+extern void evm_inode_post_setxattr(struct dentry *dentry,
+				    const char *xattr_name,
+				    const void *xattr_value,
+				    size_t xattr_value_len);
+extern int evm_inode_removexattr(struct dentry *dentry, const char *xattr_name);
+extern void evm_inode_post_removexattr(struct dentry *dentry,
+				       const char *xattr_name);
+extern int evm_inode_init_security(struct inode *inode,
+				   const struct xattr *xattr_array,
+				   struct xattr *evm);
+#ifdef CONFIG_FS_POSIX_ACL
+extern int posix_xattr_acl(const char *xattrname);
+#else
+static inline int posix_xattr_acl(const char *xattrname)
+{
+	return 0;
+}
+#endif
+#else
+
+static inline int evm_set_key(void *key, size_t keylen)
+{
+	return -EOPNOTSUPP;
+}
+
+#ifdef CONFIG_INTEGRITY
+static inline enum integrity_status evm_verifyxattr(struct dentry *dentry,
+						    const char *xattr_name,
+						    void *xattr_value,
+						    size_t xattr_value_len,
+					struct integrity_iint_cache *iint)
+{
+	return INTEGRITY_UNKNOWN;
+}
+#endif
+
+static inline int evm_inode_setattr(struct dentry *dentry, struct iattr *attr)
+{
+	return 0;
+}
+
+static inline void evm_inode_post_setattr(struct dentry *dentry, int ia_valid)
+{
+	return;
+}
+
+static inline int evm_inode_setxattr(struct dentry *dentry, const char *name,
+				     const void *value, size_t size)
+{
+	return 0;
+}
+
+static inline void evm_inode_post_setxattr(struct dentry *dentry,
+					   const char *xattr_name,
+					   const void *xattr_value,
+					   size_t xattr_value_len)
+{
+	return;
+}
+
+static inline int evm_inode_removexattr(struct dentry *dentry,
+					const char *xattr_name)
+{
+	return 0;
+}
+
+static inline void evm_inode_post_removexattr(struct dentry *dentry,
+					      const char *xattr_name)
+{
+	return;
+}
+
+static inline int evm_inode_init_security(struct inode *inode,
+					  const struct xattr *xattr_array,
+					  struct xattr *evm)
+{
+	return 0;
+}
+
+#endif /* CONFIG_EVM */
+#endif /* LINUX_EVM_H */