sec_mem.c File Reference

#include "crypt.h"
#include "kernel/acl.h"
#include "kernel/kernel.h"

Go to the source code of this file.

Classes
struct	MEMLOCK_INFO

Macros
#define	MIN_ALLOC_SIZE   8
#define	MAX_ALLOC_SIZE   8192
#define	CANARY_SIZE   4 /* Size of canary used to spot overwrites */
#define	MEMLOCK_HEADERSIZE   roundUp( sizeof( MEMLOCK_INFO ), 4 )
#define	CANARY_STARTVALUE   "\xC0\xED\xBA\xBE" /* More fun than dead beef */
#define	CANARY_ENDVALUE   "\x36\xDD\x24\x36"
#define	adjustMemCanary(size)   size += CANARY_SIZE /* Other canary is in MEMLOCK_INFO header */
#define	insertMemCanary(memBlockPtr, memPtr)
#define	checkMemCanary(memBlockPtr, memPtr)

Functions
CHECK_RETVAL	STDC_NONNULL_ARG ((1))
CHECK_RETVAL	STDC_NONNULL_ARG ((1, 2, 3))
void	endAllocation (void)

Macro Definition Documentation

#define adjustMemCanary

(

size

)

size += CANARY_SIZE /* Other canary is in MEMLOCK_INFO header */

Definition at line 67 of file sec_mem.c.

#define CANARY_ENDVALUE   "\x36\xDD\x24\x36"

Definition at line 65 of file sec_mem.c.

#define CANARY_SIZE   4 /* Size of canary used to spot overwrites */

Definition at line 39 of file sec_mem.c.

#define CANARY_STARTVALUE   "\xC0\xED\xBA\xBE" /* More fun than dead beef */

Definition at line 64 of file sec_mem.c.

#define checkMemCanary	(		memBlockPtr,
			memPtr
	)

Value:

REQUIRES( !memcmp( memBlockPtr->canary, CANARY_STARTVALUE, CANARY_SIZE ) ); \
        REQUIRES( !memcmp( memPtr + memBlockPtr->size - CANARY_SIZE, \
                           CANARY_ENDVALUE, CANARY_SIZE ) );

Definition at line 73 of file sec_mem.c.

#define insertMemCanary	(		memBlockPtr,
			memPtr
	)

Value:

memcpy( memBlockPtr->canary, CANARY_STARTVALUE, CANARY_SIZE ); \
        memcpy( memPtr + memBlockPtr->size - CANARY_SIZE, CANARY_ENDVALUE, \
                CANARY_SIZE )

Definition at line 69 of file sec_mem.c.

#define MAX_ALLOC_SIZE   8192

Definition at line 27 of file sec_mem.c.

#define MEMLOCK_HEADERSIZE   roundUp( sizeof( MEMLOCK_INFO ), 4 )

Definition at line 53 of file sec_mem.c.

#define MIN_ALLOC_SIZE   8

Definition at line 26 of file sec_mem.c.

Function Documentation

void endAllocation

(

void

)

Definition at line 299 of file sec_mem.c.

CHECK_RETVAL STDC_NONNULL_ARG

(

(1)

)

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Definition at line 86 of file sec_mem.c.

CHECK_RETVAL STDC_NONNULL_ARG

(

(1, 2, 3)

)

Definition at line 103 of file sec_mem.c.