fs/devpts/xattr_security.c

   1 /*
   2  * File: fs/devpts/xattr_security.c
   3  */
   4
   5 #include <linux/module.h>
   6 #include <linux/string.h>
   7 #include <linux/fs.h>
   8 #include <linux/security.h>
   9 #include "xattr.h"
  10
  11 static size_t
  12 devpts_xattr_security_list(struct dentry *dentry, char *buffer)
  13 {
  14         return security_inode_listsecurity(dentry, buffer);
  15 }
  16
  17 static int
  18 devpts_xattr_security_get(struct dentry *dentry, const char *name,
  19                           void *buffer, size_t size)
  20 {
  21         if (strcmp(name, "") == 0)
  22                 return -EINVAL;
  23         return security_inode_getsecurity(dentry, name, buffer, size);
  24 }
  25
  26 static int
  27 devpts_xattr_security_set(struct dentry *dentry, const char *name,
  28                           const void *value, size_t size, int flags)
  29 {
  30         if (strcmp(name, "") == 0)
  31                 return -EINVAL;
  32         return security_inode_setsecurity(dentry, name, value, size, flags);
  33 }
  34
  35 struct devpts_xattr_handler devpts_xattr_security_handler = {
  36         .prefix = XATTR_SECURITY_PREFIX,
  37         .list   = devpts_xattr_security_list,
  38         .get    = devpts_xattr_security_get,
  39         .set    = devpts_xattr_security_set,
  40 };