Merge branch 'for-3.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...

[firefly-linux-kernel-4.4.55.git] / include / linux / security.h

diff --git a/include/linux/security.h b/include/linux/security.h
index ab0e091ce5facf0047c57191f9e631fd5c4bb791..4e5a73cdbbef18463920022626931d02c0540eb9 100644 (file)
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -86,9 +86,9 @@ extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
 extern int cap_inode_need_killpriv(struct dentry *dentry);
 extern int cap_inode_killpriv(struct dentry *dentry);
-extern int cap_file_mmap(struct file *file, unsigned long reqprot,
-                        unsigned long prot, unsigned long flags,
-                        unsigned long addr, unsigned long addr_only);
+extern int cap_mmap_addr(unsigned long addr);
+extern int cap_mmap_file(struct file *file, unsigned long reqprot,
+                        unsigned long prot, unsigned long flags);
 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
                          unsigned long arg4, unsigned long arg5);
@@ -586,15 +586,17 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *     simple integer value.  When @arg represents a user space pointer, it
  *     should never be used by the security module.
  *     Return 0 if permission is granted.
- * @file_mmap :
+ * @mmap_addr :
+ *     Check permissions for a mmap operation at @addr.
+ *     @addr contains virtual address that will be used for the operation.
+ *     Return 0 if permission is granted.
+ * @mmap_file :
  *     Check permissions for a mmap operation.  The @file may be NULL, e.g.
  *     if mapping anonymous memory.
  *     @file contains the file structure for file to map (may be NULL).
  *     @reqprot contains the protection requested by the application.
  *     @prot contains the protection that will be applied by the kernel.
  *     @flags contains the operational flags.
- *     @addr contains virtual address that will be used for the operation.
- *     @addr_only contains a boolean: 0 if file-backed VMA, otherwise 1.
  *     Return 0 if permission is granted.
  * @file_mprotect:
  *     Check permissions before changing memory access permissions.
@@ -1481,10 +1483,10 @@ struct security_operations {
        void (*file_free_security) (struct file *file);
        int (*file_ioctl) (struct file *file, unsigned int cmd,
                           unsigned long arg);
-       int (*file_mmap) (struct file *file,
+       int (*mmap_addr) (unsigned long addr);
+       int (*mmap_file) (struct file *file,
                          unsigned long reqprot, unsigned long prot,
-                         unsigned long flags, unsigned long addr,
-                         unsigned long addr_only);
+                         unsigned long flags);
        int (*file_mprotect) (struct vm_area_struct *vma,
                              unsigned long reqprot,
                              unsigned long prot);
@@ -1743,9 +1745,9 @@ int security_file_permission(struct file *file, int mask);
 int security_file_alloc(struct file *file);
 void security_file_free(struct file *file);
 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
-int security_file_mmap(struct file *file, unsigned long reqprot,
-                       unsigned long prot, unsigned long flags,
-                       unsigned long addr, unsigned long addr_only);
+int security_mmap_file(struct file *file, unsigned long prot,
+                       unsigned long flags);
+int security_mmap_addr(unsigned long addr);
 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
                           unsigned long prot);
 int security_file_lock(struct file *file, unsigned int cmd);
@@ -2181,13 +2183,15 @@ static inline int security_file_ioctl(struct file *file, unsigned int cmd,
        return 0;
 }
 
-static inline int security_file_mmap(struct file *file, unsigned long reqprot,
-                                    unsigned long prot,
-                                    unsigned long flags,
-                                    unsigned long addr,
-                                    unsigned long addr_only)
+static inline int security_mmap_file(struct file *file, unsigned long prot,
+                                    unsigned long flags)
+{
+       return 0;
+}
+
+static inline int security_mmap_addr(unsigned long addr)
 {
-       return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
+       return cap_mmap_addr(addr);
 }
 
 static inline int security_file_mprotect(struct vm_area_struct *vma,