diff options
Diffstat (limited to 'memfd/memfd_test.c')
| -rw-r--r-- | memfd/memfd_test.c | 913 |
1 files changed, 0 insertions, 913 deletions
diff --git a/memfd/memfd_test.c b/memfd/memfd_test.c deleted file mode 100644 index 3634c90..0000000 --- a/memfd/memfd_test.c +++ /dev/null @@ -1,913 +0,0 @@ -#define _GNU_SOURCE -#define __EXPORTED_HEADERS__ - -#include <errno.h> -#include <inttypes.h> -#include <limits.h> -#include <linux/falloc.h> -#include <linux/fcntl.h> -#include <linux/memfd.h> -#include <sched.h> -#include <stdio.h> -#include <stdlib.h> -#include <signal.h> -#include <string.h> -#include <sys/mman.h> -#include <sys/stat.h> -#include <sys/syscall.h> -#include <unistd.h> - -#define MFD_DEF_SIZE 8192 -#define STACK_SIZE 65535 - -static int sys_memfd_create(const char *name, - unsigned int flags) -{ - return syscall(__NR_memfd_create, name, flags); -} - -static int mfd_assert_new(const char *name, loff_t sz, unsigned int flags) -{ - int r, fd; - - fd = sys_memfd_create(name, flags); - if (fd < 0) { - printf("memfd_create(\"%s\", %u) failed: %m\n", - name, flags); - abort(); - } - - r = ftruncate(fd, sz); - if (r < 0) { - printf("ftruncate(%llu) failed: %m\n", (unsigned long long)sz); - abort(); - } - - return fd; -} - -static void mfd_fail_new(const char *name, unsigned int flags) -{ - int r; - - r = sys_memfd_create(name, flags); - if (r >= 0) { - printf("memfd_create(\"%s\", %u) succeeded, but failure expected\n", - name, flags); - close(r); - abort(); - } -} - -static __u64 mfd_assert_get_seals(int fd) -{ - long r; - - r = fcntl(fd, F_GET_SEALS); - if (r < 0) { - printf("GET_SEALS(%d) failed: %m\n", fd); - abort(); - } - - return r; -} - -static void mfd_assert_has_seals(int fd, __u64 seals) -{ - __u64 s; - - s = mfd_assert_get_seals(fd); - if (s != seals) { - printf("%llu != %llu = GET_SEALS(%d)\n", - (unsigned long long)seals, (unsigned long long)s, fd); - abort(); - } -} - -static void mfd_assert_add_seals(int fd, __u64 seals) -{ - long r; - __u64 s; - - s = mfd_assert_get_seals(fd); - r = fcntl(fd, F_ADD_SEALS, seals); - if (r < 0) { - printf("ADD_SEALS(%d, %llu -> %llu) failed: %m\n", - fd, (unsigned long long)s, (unsigned long long)seals); - abort(); - } -} - -static void mfd_fail_add_seals(int fd, __u64 seals) -{ - long r; - __u64 s; - - r = fcntl(fd, F_GET_SEALS); - if (r < 0) - s = 0; - else - s = r; - - r = fcntl(fd, F_ADD_SEALS, seals); - if (r >= 0) { - printf("ADD_SEALS(%d, %llu -> %llu) didn't fail as expected\n", - fd, (unsigned long long)s, (unsigned long long)seals); - abort(); - } -} - -static void mfd_assert_size(int fd, size_t size) -{ - struct stat st; - int r; - - r = fstat(fd, &st); - if (r < 0) { - printf("fstat(%d) failed: %m\n", fd); - abort(); - } else if (st.st_size != size) { - printf("wrong file size %lld, but expected %lld\n", - (long long)st.st_size, (long long)size); - abort(); - } -} - -static int mfd_assert_dup(int fd) -{ - int r; - - r = dup(fd); - if (r < 0) { - printf("dup(%d) failed: %m\n", fd); - abort(); - } - - return r; -} - -static void *mfd_assert_mmap_shared(int fd) -{ - void *p; - - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_READ | PROT_WRITE, - MAP_SHARED, - fd, - 0); - if (p == MAP_FAILED) { - printf("mmap() failed: %m\n"); - abort(); - } - - return p; -} - -static void *mfd_assert_mmap_private(int fd) -{ - void *p; - - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_READ, - MAP_PRIVATE, - fd, - 0); - if (p == MAP_FAILED) { - printf("mmap() failed: %m\n"); - abort(); - } - - return p; -} - -static int mfd_assert_open(int fd, int flags, mode_t mode) -{ - char buf[512]; - int r; - - sprintf(buf, "/proc/self/fd/%d", fd); - r = open(buf, flags, mode); - if (r < 0) { - printf("open(%s) failed: %m\n", buf); - abort(); - } - - return r; -} - -static void mfd_fail_open(int fd, int flags, mode_t mode) -{ - char buf[512]; - int r; - - sprintf(buf, "/proc/self/fd/%d", fd); - r = open(buf, flags, mode); - if (r >= 0) { - printf("open(%s) didn't fail as expected\n"); - abort(); - } -} - -static void mfd_assert_read(int fd) -{ - char buf[16]; - void *p; - ssize_t l; - - l = read(fd, buf, sizeof(buf)); - if (l != sizeof(buf)) { - printf("read() failed: %m\n"); - abort(); - } - - /* verify PROT_READ *is* allowed */ - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_READ, - MAP_PRIVATE, - fd, - 0); - if (p == MAP_FAILED) { - printf("mmap() failed: %m\n"); - abort(); - } - munmap(p, MFD_DEF_SIZE); - - /* verify MAP_PRIVATE is *always* allowed (even writable) */ - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_READ | PROT_WRITE, - MAP_PRIVATE, - fd, - 0); - if (p == MAP_FAILED) { - printf("mmap() failed: %m\n"); - abort(); - } - munmap(p, MFD_DEF_SIZE); -} - -static void mfd_assert_write(int fd) -{ - ssize_t l; - void *p; - int r; - - /* verify write() succeeds */ - l = write(fd, "\0\0\0\0", 4); - if (l != 4) { - printf("write() failed: %m\n"); - abort(); - } - - /* verify PROT_READ | PROT_WRITE is allowed */ - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_READ | PROT_WRITE, - MAP_SHARED, - fd, - 0); - if (p == MAP_FAILED) { - printf("mmap() failed: %m\n"); - abort(); - } - *(char *)p = 0; - munmap(p, MFD_DEF_SIZE); - - /* verify PROT_WRITE is allowed */ - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_WRITE, - MAP_SHARED, - fd, - 0); - if (p == MAP_FAILED) { - printf("mmap() failed: %m\n"); - abort(); - } - *(char *)p = 0; - munmap(p, MFD_DEF_SIZE); - - /* verify PROT_READ with MAP_SHARED is allowed and a following - * mprotect(PROT_WRITE) allows writing */ - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_READ, - MAP_SHARED, - fd, - 0); - if (p == MAP_FAILED) { - printf("mmap() failed: %m\n"); - abort(); - } - - r = mprotect(p, MFD_DEF_SIZE, PROT_READ | PROT_WRITE); - if (r < 0) { - printf("mprotect() failed: %m\n"); - abort(); - } - - *(char *)p = 0; - munmap(p, MFD_DEF_SIZE); - - /* verify PUNCH_HOLE works */ - r = fallocate(fd, - FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, - 0, - MFD_DEF_SIZE); - if (r < 0) { - printf("fallocate(PUNCH_HOLE) failed: %m\n"); - abort(); - } -} - -static void mfd_fail_write(int fd) -{ - ssize_t l; - void *p; - int r; - - /* verify write() fails */ - l = write(fd, "data", 4); - if (l != -EPERM) { - printf("expected EPERM on write(), but got %d: %m\n", (int)l); - abort(); - } - - /* verify PROT_READ | PROT_WRITE is not allowed */ - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_READ | PROT_WRITE, - MAP_SHARED, - fd, - 0); - if (p != MAP_FAILED) { - printf("mmap() didn't fail as expected\n"); - abort(); - } - - /* verify PROT_WRITE is not allowed */ - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_WRITE, - MAP_SHARED, - fd, - 0); - if (p != MAP_FAILED) { - printf("mmap() didn't fail as expected\n"); - abort(); - } - - /* Verify PROT_READ with MAP_SHARED with a following mprotect is not - * allowed. Note that for r/w the kernel already prevents the mmap. */ - p = mmap(NULL, - MFD_DEF_SIZE, - PROT_READ, - MAP_SHARED, - fd, - 0); - if (p != MAP_FAILED) { - r = mprotect(p, MFD_DEF_SIZE, PROT_READ | PROT_WRITE); - if (r >= 0) { - printf("mmap()+mprotect() didn't fail as expected\n"); - abort(); - } - } - - /* verify PUNCH_HOLE fails */ - r = fallocate(fd, - FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, - 0, - MFD_DEF_SIZE); - if (r >= 0) { - printf("fallocate(PUNCH_HOLE) didn't fail as expected\n"); - abort(); - } -} - -static void mfd_assert_shrink(int fd) -{ - int r, fd2; - - r = ftruncate(fd, MFD_DEF_SIZE / 2); - if (r < 0) { - printf("ftruncate(SHRINK) failed: %m\n"); - abort(); - } - - mfd_assert_size(fd, MFD_DEF_SIZE / 2); - - fd2 = mfd_assert_open(fd, - O_RDWR | O_CREAT | O_TRUNC, - S_IRUSR | S_IWUSR); - close(fd2); - - mfd_assert_size(fd, 0); -} - -static void mfd_fail_shrink(int fd) -{ - int r; - - r = ftruncate(fd, MFD_DEF_SIZE / 2); - if (r >= 0) { - printf("ftruncate(SHRINK) didn't fail as expected\n"); - abort(); - } - - mfd_fail_open(fd, - O_RDWR | O_CREAT | O_TRUNC, - S_IRUSR | S_IWUSR); -} - -static void mfd_assert_grow(int fd) -{ - int r; - - r = ftruncate(fd, MFD_DEF_SIZE * 2); - if (r < 0) { - printf("ftruncate(GROW) failed: %m\n"); - abort(); - } - - mfd_assert_size(fd, MFD_DEF_SIZE * 2); - - r = fallocate(fd, - 0, - 0, - MFD_DEF_SIZE * 4); - if (r < 0) { - printf("fallocate(ALLOC) failed: %m\n"); - abort(); - } - - mfd_assert_size(fd, MFD_DEF_SIZE * 4); -} - -static void mfd_fail_grow(int fd) -{ - int r; - - r = ftruncate(fd, MFD_DEF_SIZE * 2); - if (r >= 0) { - printf("ftruncate(GROW) didn't fail as expected\n"); - abort(); - } - - r = fallocate(fd, - 0, - 0, - MFD_DEF_SIZE * 4); - if (r >= 0) { - printf("fallocate(ALLOC) didn't fail as expected\n"); - abort(); - } -} - -static void mfd_assert_grow_write(int fd) -{ - static char buf[MFD_DEF_SIZE * 8]; - ssize_t l; - - l = pwrite(fd, buf, sizeof(buf), 0); - if (l != sizeof(buf)) { - printf("pwrite() failed: %m\n"); - abort(); - } - - mfd_assert_size(fd, MFD_DEF_SIZE * 8); -} - -static void mfd_fail_grow_write(int fd) -{ - static char buf[MFD_DEF_SIZE * 8]; - ssize_t l; - - l = pwrite(fd, buf, sizeof(buf), 0); - if (l == sizeof(buf)) { - printf("pwrite() didn't fail as expected\n"); - abort(); - } -} - -static int idle_thread_fn(void *arg) -{ - sigset_t set; - int sig; - - /* dummy waiter; SIGTERM terminates us anyway */ - sigemptyset(&set); - sigaddset(&set, SIGTERM); - sigwait(&set, &sig); - - return 0; -} - -static pid_t spawn_idle_thread(unsigned int flags) -{ - uint8_t *stack; - pid_t pid; - - stack = malloc(STACK_SIZE); - if (!stack) { - printf("malloc(STACK_SIZE) failed: %m\n"); - abort(); - } - - pid = clone(idle_thread_fn, - stack + STACK_SIZE, - SIGCHLD | flags, - NULL); - if (pid < 0) { - printf("clone() failed: %m\n"); - abort(); - } - - return pid; -} - -static void join_idle_thread(pid_t pid) -{ - kill(pid, SIGTERM); - waitpid(pid, NULL, 0); -} - -/* - * Test memfd_create() syscall - * Verify syscall-argument validation, including name checks, flag validation - * and more. - */ -static void test_create(void) -{ - char buf[2048]; - int fd; - - /* test NULL name */ - mfd_fail_new(NULL, 0); - - /* test over-long name (not zero-terminated) */ - memset(buf, 0xff, sizeof(buf)); - mfd_fail_new(buf, 0); - - /* test over-long zero-terminated name */ - memset(buf, 0xff, sizeof(buf)); - buf[sizeof(buf) - 1] = 0; - mfd_fail_new(buf, 0); - - /* verify "" is a valid name */ - fd = mfd_assert_new("", 0, 0); - close(fd); - - /* verify invalid O_* open flags */ - mfd_fail_new("", 0x0100); - mfd_fail_new("", ~MFD_CLOEXEC); - mfd_fail_new("", ~MFD_ALLOW_SEALING); - mfd_fail_new("", ~0); - mfd_fail_new("", 0x80000000U); - - /* verify MFD_CLOEXEC is allowed */ - fd = mfd_assert_new("", 0, MFD_CLOEXEC); - close(fd); - - /* 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); -} - -/* - * Test basic sealing - * A very basic sealing test to see whether setting/retrieving seals works. - */ -static void test_basic(void) -{ - int fd; - - fd = mfd_assert_new("kern_memfd_basic", - MFD_DEF_SIZE, - MFD_CLOEXEC | MFD_ALLOW_SEALING); - - /* add basic seals */ - mfd_assert_has_seals(fd, 0); - mfd_assert_add_seals(fd, F_SEAL_SHRINK | - F_SEAL_WRITE); - mfd_assert_has_seals(fd, F_SEAL_SHRINK | - F_SEAL_WRITE); - - /* add them again */ - mfd_assert_add_seals(fd, F_SEAL_SHRINK | - F_SEAL_WRITE); - mfd_assert_has_seals(fd, F_SEAL_SHRINK | - F_SEAL_WRITE); - - /* add more seals and seal against sealing */ - mfd_assert_add_seals(fd, F_SEAL_GROW | F_SEAL_SEAL); - mfd_assert_has_seals(fd, F_SEAL_SHRINK | - F_SEAL_GROW | - F_SEAL_WRITE | - F_SEAL_SEAL); - - /* verify that sealing no longer works */ - mfd_fail_add_seals(fd, F_SEAL_GROW); - mfd_fail_add_seals(fd, 0); - - close(fd); - - /* verify sealing does not work without MFD_ALLOW_SEALING */ - fd = mfd_assert_new("kern_memfd_basic", - MFD_DEF_SIZE, - MFD_CLOEXEC); - mfd_assert_has_seals(fd, F_SEAL_SEAL); - mfd_fail_add_seals(fd, F_SEAL_SHRINK | - F_SEAL_GROW | - F_SEAL_WRITE); - mfd_assert_has_seals(fd, F_SEAL_SEAL); - close(fd); -} - -/* - * Test SEAL_WRITE - * Test whether SEAL_WRITE actually prevents modifications. - */ -static void test_seal_write(void) -{ - int fd; - - fd = mfd_assert_new("kern_memfd_seal_write", - MFD_DEF_SIZE, - MFD_CLOEXEC | MFD_ALLOW_SEALING); - mfd_assert_has_seals(fd, 0); - mfd_assert_add_seals(fd, F_SEAL_WRITE); - mfd_assert_has_seals(fd, F_SEAL_WRITE); - - mfd_assert_read(fd); - mfd_fail_write(fd); - mfd_assert_shrink(fd); - mfd_assert_grow(fd); - mfd_fail_grow_write(fd); - - close(fd); -} - -/* - * Test SEAL_SHRINK - * Test whether SEAL_SHRINK actually prevents shrinking - */ -static void test_seal_shrink(void) -{ - int fd; - - fd = mfd_assert_new("kern_memfd_seal_shrink", - MFD_DEF_SIZE, - MFD_CLOEXEC | MFD_ALLOW_SEALING); - mfd_assert_has_seals(fd, 0); - mfd_assert_add_seals(fd, F_SEAL_SHRINK); - mfd_assert_has_seals(fd, F_SEAL_SHRINK); - - mfd_assert_read(fd); - mfd_assert_write(fd); - mfd_fail_shrink(fd); - mfd_assert_grow(fd); - mfd_assert_grow_write(fd); - - close(fd); -} - -/* - * Test SEAL_GROW - * Test whether SEAL_GROW actually prevents growing - */ -static void test_seal_grow(void) -{ - int fd; - - fd = mfd_assert_new("kern_memfd_seal_grow", - MFD_DEF_SIZE, - MFD_CLOEXEC | MFD_ALLOW_SEALING); - mfd_assert_has_seals(fd, 0); - mfd_assert_add_seals(fd, F_SEAL_GROW); - mfd_assert_has_seals(fd, F_SEAL_GROW); - - mfd_assert_read(fd); - mfd_assert_write(fd); - mfd_assert_shrink(fd); - mfd_fail_grow(fd); - mfd_fail_grow_write(fd); - - close(fd); -} - -/* - * Test SEAL_SHRINK | SEAL_GROW - * Test whether SEAL_SHRINK | SEAL_GROW actually prevents resizing - */ -static void test_seal_resize(void) -{ - int fd; - - fd = mfd_assert_new("kern_memfd_seal_resize", - MFD_DEF_SIZE, - MFD_CLOEXEC | MFD_ALLOW_SEALING); - mfd_assert_has_seals(fd, 0); - mfd_assert_add_seals(fd, F_SEAL_SHRINK | F_SEAL_GROW); - mfd_assert_has_seals(fd, F_SEAL_SHRINK | F_SEAL_GROW); - - mfd_assert_read(fd); - mfd_assert_write(fd); - mfd_fail_shrink(fd); - mfd_fail_grow(fd); - mfd_fail_grow_write(fd); - - close(fd); -} - -/* - * Test sharing via dup() - * Test that seals are shared between dupped FDs and they're all equal. - */ -static void test_share_dup(void) -{ - int fd, fd2; - - fd = mfd_assert_new("kern_memfd_share_dup", - MFD_DEF_SIZE, - MFD_CLOEXEC | MFD_ALLOW_SEALING); - mfd_assert_has_seals(fd, 0); - - fd2 = mfd_assert_dup(fd); - mfd_assert_has_seals(fd2, 0); - - mfd_assert_add_seals(fd, F_SEAL_WRITE); - mfd_assert_has_seals(fd, F_SEAL_WRITE); - mfd_assert_has_seals(fd2, F_SEAL_WRITE); - - mfd_assert_add_seals(fd2, F_SEAL_SHRINK); - mfd_assert_has_seals(fd, F_SEAL_WRITE | F_SEAL_SHRINK); - mfd_assert_has_seals(fd2, F_SEAL_WRITE | F_SEAL_SHRINK); - - mfd_assert_add_seals(fd, F_SEAL_SEAL); - mfd_assert_has_seals(fd, F_SEAL_WRITE | F_SEAL_SHRINK | F_SEAL_SEAL); - mfd_assert_has_seals(fd2, F_SEAL_WRITE | F_SEAL_SHRINK | F_SEAL_SEAL); - - mfd_fail_add_seals(fd, F_SEAL_GROW); - mfd_fail_add_seals(fd2, F_SEAL_GROW); - mfd_fail_add_seals(fd, F_SEAL_SEAL); - mfd_fail_add_seals(fd2, F_SEAL_SEAL); - - close(fd2); - - mfd_fail_add_seals(fd, F_SEAL_GROW); - close(fd); -} - -/* - * Test sealing with active mmap()s - * Modifying seals is only allowed if no other mmap() refs exist. - */ -static void test_share_mmap(void) -{ - int fd; - void *p; - - fd = mfd_assert_new("kern_memfd_share_mmap", - MFD_DEF_SIZE, - MFD_CLOEXEC | MFD_ALLOW_SEALING); - mfd_assert_has_seals(fd, 0); - - /* shared/writable ref prevents sealing WRITE, but allows others */ - p = mfd_assert_mmap_shared(fd); - mfd_fail_add_seals(fd, F_SEAL_WRITE); - mfd_assert_has_seals(fd, 0); - mfd_assert_add_seals(fd, F_SEAL_SHRINK); - mfd_assert_has_seals(fd, F_SEAL_SHRINK); - munmap(p, MFD_DEF_SIZE); - - /* readable ref allows sealing */ - p = mfd_assert_mmap_private(fd); - mfd_assert_add_seals(fd, F_SEAL_WRITE); - mfd_assert_has_seals(fd, F_SEAL_WRITE | F_SEAL_SHRINK); - munmap(p, MFD_DEF_SIZE); - - 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 - * semantics are as expected and we correctly check for RDONLY / WRONLY / RDWR. - */ -static void test_share_open(void) -{ - int fd, fd2; - - fd = mfd_assert_new("kern_memfd_share_open", - MFD_DEF_SIZE, - MFD_CLOEXEC | MFD_ALLOW_SEALING); - mfd_assert_has_seals(fd, 0); - - fd2 = mfd_assert_open(fd, O_RDWR, 0); - mfd_assert_add_seals(fd, F_SEAL_WRITE); - mfd_assert_has_seals(fd, F_SEAL_WRITE); - mfd_assert_has_seals(fd2, F_SEAL_WRITE); - - mfd_assert_add_seals(fd2, F_SEAL_SHRINK); - mfd_assert_has_seals(fd, F_SEAL_WRITE | F_SEAL_SHRINK); - mfd_assert_has_seals(fd2, F_SEAL_WRITE | F_SEAL_SHRINK); - - close(fd); - fd = mfd_assert_open(fd2, O_RDONLY, 0); - - mfd_fail_add_seals(fd, F_SEAL_SEAL); - mfd_assert_has_seals(fd, F_SEAL_WRITE | F_SEAL_SHRINK); - mfd_assert_has_seals(fd2, F_SEAL_WRITE | F_SEAL_SHRINK); - - close(fd2); - fd2 = mfd_assert_open(fd, O_RDWR, 0); - - mfd_assert_add_seals(fd2, F_SEAL_SEAL); - mfd_assert_has_seals(fd, F_SEAL_WRITE | F_SEAL_SHRINK | F_SEAL_SEAL); - mfd_assert_has_seals(fd2, F_SEAL_WRITE | F_SEAL_SHRINK | F_SEAL_SEAL); - - close(fd2); - close(fd); -} - -/* - * Test sharing via fork() - * Test whether seal-modifications work as expected with forked childs. - */ -static void test_share_fork(void) -{ - int fd; - pid_t pid; - - fd = mfd_assert_new("kern_memfd_share_fork", - MFD_DEF_SIZE, - MFD_CLOEXEC | MFD_ALLOW_SEALING); - mfd_assert_has_seals(fd, 0); - - pid = spawn_idle_thread(0); - mfd_assert_add_seals(fd, F_SEAL_SEAL); - mfd_assert_has_seals(fd, F_SEAL_SEAL); - - mfd_fail_add_seals(fd, F_SEAL_WRITE); - mfd_assert_has_seals(fd, F_SEAL_SEAL); - - join_idle_thread(pid); - - mfd_fail_add_seals(fd, F_SEAL_WRITE); - mfd_assert_has_seals(fd, F_SEAL_SEAL); - - close(fd); -} - -int main(int argc, char **argv) -{ - pid_t pid; - - printf("memfd: CREATE\n"); - test_create(); - printf("memfd: BASIC\n"); - test_basic(); - - printf("memfd: SEAL-WRITE\n"); - test_seal_write(); - printf("memfd: SEAL-SHRINK\n"); - test_seal_shrink(); - printf("memfd: SEAL-GROW\n"); - test_seal_grow(); - printf("memfd: SEAL-RESIZE\n"); - test_seal_resize(); - - printf("memfd: SHARE-DUP\n"); - test_share_dup(); - printf("memfd: SHARE-MMAP\n"); - test_share_mmap(); - printf("memfd: SHARE-OPEN\n"); - test_share_open(); - printf("memfd: SHARE-FORK\n"); - test_share_fork(); - - /* Run test-suite in a multi-threaded environment with a shared - * file-table. */ - pid = spawn_idle_thread(CLONE_FILES | CLONE_FS | CLONE_VM); - printf("memfd: SHARE-DUP (shared file-table)\n"); - test_share_dup(); - printf("memfd: SHARE-MMAP (shared file-table)\n"); - test_share_mmap(); - printf("memfd: SHARE-OPEN (shared file-table)\n"); - test_share_open(); - printf("memfd: SHARE-FORK (shared file-table)\n"); - test_share_fork(); - join_idle_thread(pid); - - printf("memfd: DONE\n"); - - return 0; -} |