ima: hashing large files bug fix
[linux-2.6.git] / security / security.c
index d85dbb3..dc7674f 100644 (file)
@@ -26,9 +26,6 @@ extern void security_fixup_ops(struct security_operations *ops);
 
 struct security_operations *security_ops;      /* Initialized to NULL */
 
-/* amount of vm to protect from userspace access */
-unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR;
-
 static inline int verify(struct security_operations *ops)
 {
        /* verify the security_operations structure exists */
@@ -154,14 +151,32 @@ int security_capset(struct cred *new, const struct cred *old,
                                    effective, inheritable, permitted);
 }
 
-int security_capable(struct task_struct *tsk, int cap)
+int security_capable(int cap)
+{
+       return security_ops->capable(current, current_cred(), cap,
+                                    SECURITY_CAP_AUDIT);
+}
+
+int security_real_capable(struct task_struct *tsk, int cap)
 {
-       return security_ops->capable(tsk, cap, SECURITY_CAP_AUDIT);
+       const struct cred *cred;
+       int ret;
+
+       cred = get_task_cred(tsk);
+       ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
+       put_cred(cred);
+       return ret;
 }
 
-int security_capable_noaudit(struct task_struct *tsk, int cap)
+int security_real_capable_noaudit(struct task_struct *tsk, int cap)
 {
-       return security_ops->capable(tsk, cap, SECURITY_CAP_NOAUDIT);
+       const struct cred *cred;
+       int ret;
+
+       cred = get_task_cred(tsk);
+       ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
+       put_cred(cred);
+       return ret;
 }
 
 int security_acct(struct file *file)
@@ -355,12 +370,79 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
 }
 EXPORT_SYMBOL(security_inode_init_security);
 
+#ifdef CONFIG_SECURITY_PATH
+int security_path_mknod(struct path *path, struct dentry *dentry, int mode,
+                       unsigned int dev)
+{
+       if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+               return 0;
+       return security_ops->path_mknod(path, dentry, mode, dev);
+}
+EXPORT_SYMBOL(security_path_mknod);
+
+int security_path_mkdir(struct path *path, struct dentry *dentry, int mode)
+{
+       if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+               return 0;
+       return security_ops->path_mkdir(path, dentry, mode);
+}
+
+int security_path_rmdir(struct path *path, struct dentry *dentry)
+{
+       if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+               return 0;
+       return security_ops->path_rmdir(path, dentry);
+}
+
+int security_path_unlink(struct path *path, struct dentry *dentry)
+{
+       if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+               return 0;
+       return security_ops->path_unlink(path, dentry);
+}
+
+int security_path_symlink(struct path *path, struct dentry *dentry,
+                         const char *old_name)
+{
+       if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+               return 0;
+       return security_ops->path_symlink(path, dentry, old_name);
+}
+
+int security_path_link(struct dentry *old_dentry, struct path *new_dir,
+                      struct dentry *new_dentry)
+{
+       if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
+               return 0;
+       return security_ops->path_link(old_dentry, new_dir, new_dentry);
+}
+
+int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
+                        struct path *new_dir, struct dentry *new_dentry)
+{
+       if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
+                    (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
+               return 0;
+       return security_ops->path_rename(old_dir, old_dentry, new_dir,
+                                        new_dentry);
+}
+
+int security_path_truncate(struct path *path, loff_t length,
+                          unsigned int time_attrs)
+{
+       if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+               return 0;
+       return security_ops->path_truncate(path, length, time_attrs);
+}
+#endif
+
 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
 {
        if (unlikely(IS_PRIVATE(dir)))
                return 0;
        return security_ops->inode_create(dir, dentry, mode);
 }
+EXPORT_SYMBOL_GPL(security_inode_create);
 
 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
                         struct dentry *new_dentry)
@@ -391,6 +473,7 @@ int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                return 0;
        return security_ops->inode_mkdir(dir, dentry, mode);
 }
+EXPORT_SYMBOL_GPL(security_inode_mkdir);
 
 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 {
@@ -923,11 +1006,6 @@ int security_socket_accept(struct socket *sock, struct socket *newsock)
        return security_ops->socket_accept(sock, newsock);
 }
 
-void security_socket_post_accept(struct socket *sock, struct socket *newsock)
-{
-       security_ops->socket_post_accept(sock, newsock);
-}
-
 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
 {
        return security_ops->socket_sendmsg(sock, msg, size);