UBUNTU: SAUCE: (efi-lockdown) Add a SysRq option to lift kernel lockdown

[mirror_ubuntu-eoan-kernel.git] / include / linux / sysrq.h

diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 8c71874e84852b5cefb9b9bf0a06a877457eaf86..7de1f08b60a913dc1cf06fe86c3132982c6db8a8 100644 (file)
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -29,6 +29,8 @@
 #define SYSRQ_ENABLE_BOOT      0x0080
 #define SYSRQ_ENABLE_RTNICE    0x0100
 
+#define SYSRQ_DISABLE_USERSPACE        0x00010000
+
 struct sysrq_key_op {
        void (*handler)(int);
        char *help_msg;
@@ -43,8 +45,12 @@ struct sysrq_key_op {
  * are available -- else NULL's).
  */
 
+#define SYSRQ_FROM_KERNEL      0x0001
+#define SYSRQ_FROM_PROC                0x0002
+#define SYSRQ_FROM_SYNTHETIC   0x0004
+
 void handle_sysrq(int key);
-void __handle_sysrq(int key, bool check_mask);
+void __handle_sysrq(int key, unsigned int from);
 int register_sysrq_key(int key, struct sysrq_key_op *op);
 int unregister_sysrq_key(int key, struct sysrq_key_op *op);
 struct sysrq_key_op *__sysrq_get_key_op(int key);