1 files changed, 17 insertions, 0 deletions

diff --git a/include/linux/security.h b/include/linux/security.h
index 9c6b9722ff48..623f90e5f38d 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -702,6 +702,15 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      @inode points to the inode to use as a reference.
  *      The current task must be the one that nominated @inode.
  *      Return 0 if successful.
+ * @kernel_fw_from_file:
+ *      Load firmware from userspace (not called for built-in firmware).
+ *      @file contains the file structure pointing to the file containing
+ *      the firmware to load. This argument will be NULL if the firmware
+ *      was loaded via the uevent-triggered blob-based interface exposed
+ *      by CONFIG_FW_LOADER_USER_HELPER.
+ *      @buf pointer to buffer containing firmware contents.
+ *      @size length of the firmware contents.
+ *      Return 0 if permission is granted.
  * @kernel_module_request:
  *      Ability to trigger the kernel to automatically upcall to userspace for
  *      userspace to load a kernel module with the given name.
@@ -1565,6 +1574,7 @@ struct security_operations {
         void (*cred_transfer)(struct cred *new, const struct cred *old);
         int (*kernel_act_as)(struct cred *new, u32 secid);
         int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
+        int (*kernel_fw_from_file)(struct file *file, char *buf, size_t size);
         int (*kernel_module_request)(char *kmod_name);
         int (*kernel_module_from_file)(struct file *file);
         int (*task_fix_setuid) (struct cred *new, const struct cred *old,
@@ -1837,6 +1847,7 @@ int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
 void security_transfer_creds(struct cred *new, const struct cred *old);
 int security_kernel_act_as(struct cred *new, u32 secid);
 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
+int security_kernel_fw_from_file(struct file *file, char *buf, size_t size);
 int security_kernel_module_request(char *kmod_name);
 int security_kernel_module_from_file(struct file *file);
 int security_task_fix_setuid(struct cred *new, const struct cred *old,
@@ -2363,6 +2374,12 @@ static inline int security_kernel_create_files_as(struct cred *cred,
         return 0;
 }
 
+static inline int security_kernel_fw_from_file(struct file *file,
+                                               char *buf, size_t size)
+{
+        return 0;
+}
+
 static inline int security_kernel_module_request(char *kmod_name)
 {
         return 0;