lixvdso.h File Reference

#include "introtypes.h"

Go to the source code of this file.

Macros
#define	LIX_VDSO_FIXED   0xffffffffff600000ULL

Typedefs
typedef struct _LIX_TASK_OBJECT	LIX_TASK_OBJECT
typedef struct _LIX_TASK_OBJECT *	PLIX_TASK_OBJECT

Functions
INTSTATUS	IntLixVdsoProtect (void)
	Activates protection for the vDSO image and VSYSCALL. More...
void	IntLixVdsoUnprotect (void)
	Remove protection for the vDSO image and VSYSCALL. More...
INTSTATUS	IntLixVdsoFetchAddress (LIX_TASK_OBJECT *Task, QWORD *Address)
	Fetch the guest virtual address of the vDSO mapped on the provided task. More...
INTSTATUS	IntLixVdsoDynamicProtect (void)
	This function activates the protection for the vDSO image. More...

Macro Definition Documentation

LIX_VDSO_FIXED

#define LIX_VDSO_FIXED   0xffffffffff600000ULL

Definition at line 12 of file lixvdso.h.

Referenced by IntLixVdsoFixedProtect().

Typedef Documentation

LIX_TASK_OBJECT

typedef struct _LIX_TASK_OBJECT LIX_TASK_OBJECT

Definition at line 10 of file lixvdso.h.

PLIX_TASK_OBJECT

typedef struct _LIX_TASK_OBJECT * PLIX_TASK_OBJECT

Definition at line 10 of file lixvdso.h.

Function Documentation

IntLixVdsoDynamicProtect()

INTSTATUS IntLixVdsoDynamicProtect

(

void

)

This function activates the protection for the vDSO image.

The function checks if the vDSO image is relocated and calls the proper function to activate the protection. The 'init_vdso', 'text_poke_early', 'add_nops' ksyms are fetched in order to except the init writes (see IntLixVdsoIsInitWrite).

Return values

INT_STATUS_SUCCESS

On success.

Definition at line 726 of file lixvdso.c.

Referenced by IntLixTaskHandleExec(), and IntLixVdsoProtect().

IntLixVdsoFetchAddress()

INTSTATUS IntLixVdsoFetchAddress	(	LIX_TASK_OBJECT *	Task,
		QWORD *	Address
	)

Fetch the guest virtual address of the vDSO mapped on the provided task.

Parameters

[in]	Task	The task from which the vDSO address is fetched.
[out]	Address	The address of the vDSO image.

Return values

INT_STATUS_SUCCESS	On success.
INT_STATUS_INVALID_PARAMETER_1	If the provided task is invalid.

Definition at line 850 of file lixvdso.c.

Referenced by IntLixVdsoDynamicProtectRelocate().

IntLixVdsoProtect()

INTSTATUS IntLixVdsoProtect

(

void

)

Activates protection for the vDSO image and VSYSCALL.

Return values

INT_STATUS_SUCCESS

On success.

Definition at line 883 of file lixvdso.c.

Referenced by IntGuestUpdateCoreOptions(), and IntLixGuestActivateProtection().

IntLixVdsoUnprotect()

void IntLixVdsoUnprotect

(

void

)

Remove protection for the vDSO image and VSYSCALL.

Definition at line 928 of file lixvdso.c.

Referenced by IntGuestUpdateCoreOptions(), and IntLixGuestUninit().