Differential D52735 Diff 164104 tests/sys/vm/mmap_test.c

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tests/sys/vm/mmap_test.c

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	#include <atf-c.h>			#include <atf-c.h>
	#include <errno.h>			#include <errno.h>
	#include <fcntl.h>			#include <fcntl.h>
	#include <stdarg.h>			#include <stdarg.h>
	#include <stdbool.h>			#include <stdbool.h>
	#include <stdio.h>			#include <stdio.h>
	#include <stdlib.h>			#include <stdlib.h>

	static const struct {
	void *addr;
	int ok[2]; /* Depending on security.bsd.map_at_zero {0, !=0}. */
	} map_at_zero_tests[] = {
	{ (void )0, { 0, 1 } }, / Test sysctl. */
	{ (void *)1, { 0, 0 } },
	{ (void *)(PAGE_SIZE - 1), { 0, 0 } },
	{ (void *)PAGE_SIZE, { 1, 1 } },
	{ (void *)-1, { 0, 0 } },
	{ (void *)(-PAGE_SIZE), { 0, 0 } },
	{ (void *)(-1 - PAGE_SIZE), { 0, 0 } },
	{ (void *)(-1 - PAGE_SIZE - 1), { 0, 0 } },
	{ (void )(0x1000 PAGE_SIZE), { 1, 1 } },
	};

	#define MAP_AT_ZERO "security.bsd.map_at_zero"			#define MAP_AT_ZERO "security.bsd.map_at_zero"

	#ifdef __LP64__			#ifdef __LP64__
	#define ALLOW_WX "kern.elf64.allow_wx"			#define ALLOW_WX "kern.elf64.allow_wx"
	#else			#else
	#define ALLOW_WX "kern.elf32.allow_wx"			#define ALLOW_WX "kern.elf32.allow_wx"
	#endif			#endif

	ATF_TC_WITHOUT_HEAD(mmap__map_at_zero);			ATF_TC_WITHOUT_HEAD(mmap__map_at_zero);
	ATF_TC_BODY(mmap__map_at_zero, tc)			ATF_TC_BODY(mmap__map_at_zero, tc)
	{			{
	void *p;			void *p;
	size_t len;			size_t len;
	unsigned int i;			unsigned int i;
	int map_at_zero;			int map_at_zero;
	bool allow_wx;			bool allow_wx;
	int prot_flags;			int prot_flags;
				size_t pgsz = getpagesize();

				const struct {
				void *addr;
				int ok[2]; /* Depending on security.bsd.map_at_zero {0, !=0}. */
				} map_at_zero_tests[] = {
				{ (void )0, { 0, 1 } }, / Test sysctl. */
				{ (void *)1, { 0, 0 } },
				{ (void *)(pgsz - 1), { 0, 0 } },
				{ (void *)pgsz, { 1, 1 } },
				{ (void *)-1, { 0, 0 } },
				{ (void *)(-pgsz), { 0, 0 } },
				{ (void *)(-1 - pgsz), { 0, 0 } },
				{ (void *)(-1 - pgsz - 1), { 0, 0 } },
				{ (void )(0x1000 pgsz), { 1, 1 } },
				};

	len = sizeof(map_at_zero);			len = sizeof(map_at_zero);
	if (sysctlbyname(MAP_AT_ZERO, &map_at_zero, &len, NULL, 0) == -1) {			if (sysctlbyname(MAP_AT_ZERO, &map_at_zero, &len, NULL, 0) == -1) {
	atf_tc_skip("sysctl for %s failed: %s\n", MAP_AT_ZERO,			atf_tc_skip("sysctl for %s failed: %s\n", MAP_AT_ZERO,
	strerror(errno));			strerror(errno));
	return;			return;
	}			}

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