diff options
Diffstat (limited to 'tests/sys/vm/mmap_test.c')
| -rw-r--r-- | tests/sys/vm/mmap_test.c | 70 |
1 files changed, 69 insertions, 1 deletions
diff --git a/tests/sys/vm/mmap_test.c b/tests/sys/vm/mmap_test.c index e5f4a81a7858..6bc30f73ca95 100644 --- a/tests/sys/vm/mmap_test.c +++ b/tests/sys/vm/mmap_test.c @@ -295,14 +295,82 @@ ATF_TC_BODY(mmap__write_only, tc) munmap(p, pagesize); } -ATF_TP_ADD_TCS(tp) +ATF_TC_WITHOUT_HEAD(mmap__maxprot_basic); +ATF_TC_BODY(mmap__maxprot_basic, tc) +{ + void *p; + int error, pagesize; + + ATF_REQUIRE((pagesize = getpagesize()) > 0); + + p = mmap(NULL, pagesize, PROT_READ | PROT_MAX(PROT_READ), + MAP_ANON, -1, 0); + ATF_REQUIRE(p != MAP_FAILED); + + error = mprotect(p, pagesize, PROT_WRITE); + ATF_REQUIRE_ERRNO(EACCES, error == -1); + error = mprotect(p, pagesize, PROT_READ | PROT_WRITE); + ATF_REQUIRE_ERRNO(EACCES, error == -1); + error = mprotect(p, pagesize, PROT_READ | PROT_EXEC); + ATF_REQUIRE_ERRNO(EACCES, error == -1); + + ATF_REQUIRE(munmap(p, pagesize) == 0); +} + +/* Make sure that PROT_MAX applies as expected to mappings of shm objects */ +ATF_TC_WITHOUT_HEAD(mmap__maxprot_shm); +ATF_TC_BODY(mmap__maxprot_shm, tc) { + void *p; + int error, fd, pagesize; + + ATF_REQUIRE((pagesize = getpagesize()) > 0); + fd = shm_open(SHM_ANON, O_RDWR, 0644); + ATF_REQUIRE(fd >= 0); + + error = ftruncate(fd, pagesize); + ATF_REQUIRE(error == 0); + + p = mmap(NULL, pagesize, PROT_READ | PROT_MAX(PROT_READ), + MAP_PRIVATE, fd, 0); + ATF_REQUIRE(p != MAP_FAILED); + + error = mprotect(p, pagesize, PROT_WRITE); + ATF_REQUIRE_ERRNO(EACCES, error == -1); + error = mprotect(p, pagesize, PROT_READ | PROT_WRITE); + ATF_REQUIRE_ERRNO(EACCES, error == -1); + error = mprotect(p, pagesize, PROT_READ | PROT_EXEC); + ATF_REQUIRE_ERRNO(EACCES, error == -1); + + ATF_REQUIRE(munmap(p, pagesize) == 0); + + /* Again, this time with a shared mapping. */ + p = mmap(NULL, pagesize, PROT_READ | PROT_MAX(PROT_READ), + MAP_SHARED, fd, 0); + ATF_REQUIRE(p != MAP_FAILED); + + error = mprotect(p, pagesize, PROT_WRITE); + ATF_REQUIRE_ERRNO(EACCES, error == -1); + error = mprotect(p, pagesize, PROT_READ | PROT_WRITE); + ATF_REQUIRE_ERRNO(EACCES, error == -1); + error = mprotect(p, pagesize, PROT_READ | PROT_EXEC); + ATF_REQUIRE_ERRNO(EACCES, error == -1); + + ATF_REQUIRE(munmap(p, pagesize) == 0); + + ATF_REQUIRE(close(fd) == 0); +} + +ATF_TP_ADD_TCS(tp) +{ ATF_TP_ADD_TC(tp, mmap__map_at_zero); ATF_TP_ADD_TC(tp, mmap__bad_arguments); ATF_TP_ADD_TC(tp, mmap__dev_zero_private); ATF_TP_ADD_TC(tp, mmap__dev_zero_shared); ATF_TP_ADD_TC(tp, mmap__write_only); + ATF_TP_ADD_TC(tp, mmap__maxprot_basic); + ATF_TP_ADD_TC(tp, mmap__maxprot_shm); return (atf_no_error()); } |