static char *buf;
ssize_t l;
+ /* hugetlbfs does not support write */
+ if (hugetlbfs_test)
+ return;
+
buf = malloc(mfd_def_size * 8);
if (!buf) {
printf("malloc(%zu) failed: %m\n", mfd_def_size * 8);
static char *buf;
ssize_t l;
+ /* hugetlbfs does not support write */
+ if (hugetlbfs_test)
+ return;
+
buf = malloc(mfd_def_size * 8);
if (!buf) {
printf("malloc(%zu) failed: %m\n", mfd_def_size * 8);
fd = mfd_assert_new("", 0, MFD_CLOEXEC);
close(fd);
- if (!hugetlbfs_test) {
- /* verify MFD_ALLOW_SEALING is allowed */
- fd = mfd_assert_new("", 0, MFD_ALLOW_SEALING);
- close(fd);
-
- /* verify MFD_ALLOW_SEALING | MFD_CLOEXEC is allowed */
- fd = mfd_assert_new("", 0, MFD_ALLOW_SEALING | MFD_CLOEXEC);
- close(fd);
- } else {
- /* sealing is not supported on hugetlbfs */
- mfd_fail_new("", MFD_ALLOW_SEALING);
- }
+ /* verify MFD_ALLOW_SEALING is allowed */
+ fd = mfd_assert_new("", 0, MFD_ALLOW_SEALING);
+ close(fd);
+
+ /* verify MFD_ALLOW_SEALING | MFD_CLOEXEC is allowed */
+ fd = mfd_assert_new("", 0, MFD_ALLOW_SEALING | MFD_CLOEXEC);
+ close(fd);
}
/*
{
int fd;
- /* hugetlbfs does not contain sealing support */
- if (hugetlbfs_test)
- return;
-
printf("%s BASIC\n", MEMFD_STR);
fd = mfd_assert_new("kern_memfd_basic",
}
/*
- * hugetlbfs doesn't support seals or write, so just verify grow and shrink
- * on a hugetlbfs file created via memfd_create.
- */
-static void test_hugetlbfs_grow_shrink(void)
-{
- int fd;
-
- printf("%s HUGETLBFS-GROW-SHRINK\n", MEMFD_STR);
-
- fd = mfd_assert_new("kern_memfd_seal_write",
- mfd_def_size,
- MFD_CLOEXEC);
-
- mfd_assert_read(fd);
- mfd_assert_write(fd);
- mfd_assert_shrink(fd);
- mfd_assert_grow(fd);
-
- close(fd);
-}
-
-/*
* Test SEAL_WRITE
* Test whether SEAL_WRITE actually prevents modifications.
*/
{
int fd;
- /*
- * hugetlbfs does not contain sealing or write support. Just test
- * basic grow and shrink via test_hugetlbfs_grow_shrink.
- */
- if (hugetlbfs_test)
- return test_hugetlbfs_grow_shrink();
-
printf("%s SEAL-WRITE\n", MEMFD_STR);
fd = mfd_assert_new("kern_memfd_seal_write",
{
int fd;
- /* hugetlbfs does not contain sealing support */
- if (hugetlbfs_test)
- return;
-
printf("%s SEAL-SHRINK\n", MEMFD_STR);
fd = mfd_assert_new("kern_memfd_seal_shrink",
{
int fd;
- /* hugetlbfs does not contain sealing support */
- if (hugetlbfs_test)
- return;
-
printf("%s SEAL-GROW\n", MEMFD_STR);
fd = mfd_assert_new("kern_memfd_seal_grow",
{
int fd;
- /* hugetlbfs does not contain sealing support */
- if (hugetlbfs_test)
- return;
-
printf("%s SEAL-RESIZE\n", MEMFD_STR);
fd = mfd_assert_new("kern_memfd_seal_resize",
}
/*
- * hugetlbfs does not support seals. Basic test to dup the memfd created
- * fd and perform some basic operations on it.
- */
-static void hugetlbfs_dup(char *b_suffix)
-{
- int fd, fd2;
-
- printf("%s HUGETLBFS-DUP %s\n", MEMFD_STR, b_suffix);
-
- fd = mfd_assert_new("kern_memfd_share_dup",
- mfd_def_size,
- MFD_CLOEXEC);
-
- fd2 = mfd_assert_dup(fd);
-
- mfd_assert_read(fd);
- mfd_assert_write(fd);
-
- mfd_assert_shrink(fd2);
- mfd_assert_grow(fd2);
-
- close(fd2);
- close(fd);
-}
-
-/*
* Test sharing via dup()
* Test that seals are shared between dupped FDs and they're all equal.
*/
{
int fd, fd2;
- /*
- * hugetlbfs does not contain sealing support. Perform some
- * basic testing on dup'ed fd instead via hugetlbfs_dup.
- */
- if (hugetlbfs_test) {
- hugetlbfs_dup(b_suffix);
- return;
- }
-
printf("%s %s %s\n", MEMFD_STR, banner, b_suffix);
fd = mfd_assert_new("kern_memfd_share_dup",
int fd;
void *p;
- /* hugetlbfs does not contain sealing support */
- if (hugetlbfs_test)
- return;
-
printf("%s %s %s\n", MEMFD_STR, banner, b_suffix);
fd = mfd_assert_new("kern_memfd_share_mmap",
}
/*
- * Basic test to make sure we can open the hugetlbfs fd via /proc and
- * perform some simple operations on it.
- */
-static void hugetlbfs_proc_open(char *b_suffix)
-{
- int fd, fd2;
-
- printf("%s HUGETLBFS-PROC-OPEN %s\n", MEMFD_STR, b_suffix);
-
- fd = mfd_assert_new("kern_memfd_share_open",
- mfd_def_size,
- MFD_CLOEXEC);
-
- fd2 = mfd_assert_open(fd, O_RDWR, 0);
-
- mfd_assert_read(fd);
- mfd_assert_write(fd);
-
- mfd_assert_shrink(fd2);
- mfd_assert_grow(fd2);
-
- close(fd2);
- close(fd);
-}
-
-/*
* Test sealing with open(/proc/self/fd/%d)
* Via /proc we can get access to a separate file-context for the same memfd.
* This is *not* like dup(), but like a real separate open(). Make sure the
{
int fd, fd2;
- /*
- * hugetlbfs does not contain sealing support. So test basic
- * functionality of using /proc fd via hugetlbfs_proc_open
- */
- if (hugetlbfs_test) {
- hugetlbfs_proc_open(b_suffix);
- return;
- }
-
printf("%s %s %s\n", MEMFD_STR, banner, b_suffix);
fd = mfd_assert_new("kern_memfd_share_open",
int fd;
pid_t pid;
- /* hugetlbfs does not contain sealing support */
- if (hugetlbfs_test)
- return;
-
printf("%s %s %s\n", MEMFD_STR, banner, b_suffix);
fd = mfd_assert_new("kern_memfd_share_fork",