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kernel/linux-imx6_3.14.28/include/linux/evm.h 2.48 KB
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  /*
   * 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 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
  #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 */