25 lines
		
	
	
		
			718 B
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			718 B
		
	
	
	
		
			C
		
	
	
	
| #ifndef QEMU_MEMFD_H
 | |
| #define QEMU_MEMFD_H
 | |
| 
 | |
| 
 | |
| #ifndef F_LINUX_SPECIFIC_BASE
 | |
| #define F_LINUX_SPECIFIC_BASE 1024
 | |
| #endif
 | |
| 
 | |
| #ifndef F_ADD_SEALS
 | |
| #define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
 | |
| #define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
 | |
| 
 | |
| #define F_SEAL_SEAL     0x0001  /* prevent further seals from being set */
 | |
| #define F_SEAL_SHRINK   0x0002  /* prevent file from shrinking */
 | |
| #define F_SEAL_GROW     0x0004  /* prevent file from growing */
 | |
| #define F_SEAL_WRITE    0x0008  /* prevent writes */
 | |
| #endif
 | |
| 
 | |
| void *qemu_memfd_alloc(const char *name, size_t size, unsigned int seals,
 | |
|                        int *fd);
 | |
| void qemu_memfd_free(void *ptr, size_t size, int fd);
 | |
| bool qemu_memfd_check(void);
 | |
| 
 | |
| #endif /* QEMU_MEMFD_H */
 |