diff --git a/tests/sys/posixshm/posixshm_test.c b/tests/sys/posixshm/posixshm_test.c index add22c330b4e..7c63c6542cd7 100644 --- a/tests/sys/posixshm/posixshm_test.c +++ b/tests/sys/posixshm/posixshm_test.c @@ -1,1938 +1,1971 @@ /*- * Copyright (c) 2006 Robert N. M. Watson * All rights reserved. * * Copyright (c) 2021 The FreeBSD Foundation * * Portions of this software were developed by Ka Ho Ng * under sponsorship from the FreeBSD Foundation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define TEST_PATH_LEN 256 static char test_path[TEST_PATH_LEN]; static char test_path2[TEST_PATH_LEN]; static unsigned int test_path_idx = 0; static void gen_a_test_path(char *path) { snprintf(path, TEST_PATH_LEN, "/%s/tmp.XXXXXX%d", getenv("TMPDIR") == NULL ? "/tmp" : getenv("TMPDIR"), test_path_idx); test_path_idx++; ATF_REQUIRE_MSG(mkstemp(path) != -1, "mkstemp failed; errno=%d", errno); ATF_REQUIRE_MSG(unlink(path) == 0, "unlink failed; errno=%d", errno); } static void gen_test_path(void) { gen_a_test_path(test_path); } static void gen_test_path2(void) { gen_a_test_path(test_path2); } /* * Attempt a shm_open() that should fail with an expected error of 'error'. */ static void shm_open_should_fail(const char *path, int flags, mode_t mode, int error) { int fd; fd = shm_open(path, flags, mode); ATF_CHECK_MSG(fd == -1, "shm_open didn't fail"); ATF_CHECK_MSG(error == errno, "shm_open didn't fail with expected errno; errno=%d; expected " "errno=%d", errno, error); } /* * Attempt a shm_unlink() that should fail with an expected error of 'error'. */ static void shm_unlink_should_fail(const char *path, int error) { ATF_CHECK_MSG(shm_unlink(path) == -1, "shm_unlink didn't fail"); ATF_CHECK_MSG(error == errno, "shm_unlink didn't fail with expected errno; errno=%d; expected " "errno=%d", errno, error); } /* * Open the test object and write a value to the first byte. Returns valid fd * on success and -1 on failure. */ static int scribble_object(const char *path, char value) { char *page; int fd, pagesize; ATF_REQUIRE(0 < (pagesize = getpagesize())); fd = shm_open(path, O_CREAT|O_EXCL|O_RDWR, 0777); if (fd < 0 && errno == EEXIST) { if (shm_unlink(test_path) < 0) atf_tc_fail("shm_unlink"); fd = shm_open(test_path, O_CREAT | O_EXCL | O_RDWR, 0777); } if (fd < 0) atf_tc_fail("shm_open failed; errno=%d", errno); if (ftruncate(fd, pagesize) < 0) atf_tc_fail("ftruncate failed; errno=%d", errno); page = mmap(0, pagesize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); if (page == MAP_FAILED) atf_tc_fail("mmap failed; errno=%d", errno); page[0] = value; ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d", errno); return (fd); } /* * Fail the test case if the 'path' does not refer to an shm whose first byte * is equal to expected_value */ static void verify_object(const char *path, char expected_value) { int fd; int pagesize; char *page; ATF_REQUIRE(0 < (pagesize = getpagesize())); fd = shm_open(path, O_RDONLY, 0777); if (fd < 0) atf_tc_fail("shm_open failed in verify_object; errno=%d, path=%s", errno, path); page = mmap(0, pagesize, PROT_READ, MAP_SHARED, fd, 0); if (page == MAP_FAILED) atf_tc_fail("mmap(1)"); if (page[0] != expected_value) atf_tc_fail("Renamed object has incorrect value; has" "%d (0x%x, '%c'), expected %d (0x%x, '%c')\n", page[0], page[0], isprint(page[0]) ? page[0] : ' ', expected_value, expected_value, isprint(expected_value) ? expected_value : ' '); ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d", errno); close(fd); } static off_t shm_max_pages = 32; static const char byte_to_fill = 0x5f; static int shm_fill(int fd, off_t offset, off_t len) { int error; size_t blen, page_size; char *buf; error = 0; page_size = getpagesize(); buf = malloc(page_size); if (buf == NULL) return (1); while (len > 0) { blen = len < (off_t)page_size ? (size_t)len : page_size; memset(buf, byte_to_fill, blen); if (pwrite(fd, buf, blen, offset) != (ssize_t)blen) { error = 1; break; } len -= blen; offset += blen; } free(buf); return (error); } static int check_content_dealloc(int fd, off_t hole_start, off_t hole_len, off_t shm_sz) { int error; size_t blen, page_size; off_t offset, resid; struct stat statbuf; char *buf, *sblk; error = 0; page_size = getpagesize(); buf = malloc(page_size * 2); if (buf == NULL) return (1); sblk = buf + page_size; memset(sblk, 0, page_size); if ((uint64_t)hole_start + hole_len > (uint64_t)shm_sz) hole_len = shm_sz - hole_start; /* * Check hole is zeroed. */ offset = hole_start; resid = hole_len; while (resid > 0) { blen = resid < (off_t)page_size ? (size_t)resid : page_size; if (pread(fd, buf, blen, offset) != (ssize_t)blen) { error = 1; break; } if (memcmp(buf, sblk, blen) != 0) { error = 1; break; } resid -= blen; offset += blen; } memset(sblk, byte_to_fill, page_size); /* * Check file region before hole is zeroed. */ offset = 0; resid = hole_start; while (resid > 0) { blen = resid < (off_t)page_size ? (size_t)resid : page_size; if (pread(fd, buf, blen, offset) != (ssize_t)blen) { error = 1; break; } if (memcmp(buf, sblk, blen) != 0) { error = 1; break; } resid -= blen; offset += blen; } /* * Check file region after hole is zeroed. */ offset = hole_start + hole_len; resid = shm_sz - offset; while (resid > 0) { blen = resid < (off_t)page_size ? (size_t)resid : page_size; if (pread(fd, buf, blen, offset) != (ssize_t)blen) { error = 1; break; } if (memcmp(buf, sblk, blen) != 0) { error = 1; break; } resid -= blen; offset += blen; } /* * Check file size matches with expected file size. */ if (fstat(fd, &statbuf) == -1) error = -1; if (statbuf.st_size != shm_sz) error = -1; free(buf); return (error); } ATF_TC_WITHOUT_HEAD(remap_object); ATF_TC_BODY(remap_object, tc) { char *page; int fd, pagesize; ATF_REQUIRE(0 < (pagesize = getpagesize())); gen_test_path(); fd = scribble_object(test_path, '1'); page = mmap(0, pagesize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); if (page == MAP_FAILED) atf_tc_fail("mmap(2) failed; errno=%d", errno); if (page[0] != '1') atf_tc_fail("missing data ('%c' != '1')", page[0]); close(fd); ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d", errno); ATF_REQUIRE_MSG(shm_unlink(test_path) != -1, "shm_unlink failed; errno=%d", errno); } ATF_TC_WITHOUT_HEAD(rename_from_anon); ATF_TC_BODY(rename_from_anon, tc) { int rc; gen_test_path(); rc = shm_rename(SHM_ANON, test_path, 0); if (rc != -1) atf_tc_fail("shm_rename from SHM_ANON succeeded unexpectedly"); } ATF_TC_WITHOUT_HEAD(rename_bad_path_pointer); ATF_TC_BODY(rename_bad_path_pointer, tc) { const char *bad_path; int rc; bad_path = (const char *)0x1; gen_test_path(); rc = shm_rename(test_path, bad_path, 0); if (rc != -1) atf_tc_fail("shm_rename of nonexisting shm succeeded unexpectedly"); rc = shm_rename(bad_path, test_path, 0); if (rc != -1) atf_tc_fail("shm_rename of nonexisting shm succeeded unexpectedly"); } ATF_TC_WITHOUT_HEAD(rename_from_nonexisting); ATF_TC_BODY(rename_from_nonexisting, tc) { int rc; gen_test_path(); gen_test_path2(); rc = shm_rename(test_path, test_path2, 0); if (rc != -1) atf_tc_fail("shm_rename of nonexisting shm succeeded unexpectedly"); if (errno != ENOENT) atf_tc_fail("Expected ENOENT to rename of nonexistent shm; got %d", errno); } ATF_TC_WITHOUT_HEAD(rename_to_anon); ATF_TC_BODY(rename_to_anon, tc) { int rc; gen_test_path(); rc = shm_rename(test_path, SHM_ANON, 0); if (rc != -1) atf_tc_fail("shm_rename to SHM_ANON succeeded unexpectedly"); } ATF_TC_WITHOUT_HEAD(rename_to_replace); ATF_TC_BODY(rename_to_replace, tc) { char expected_value; int fd; int fd2; // Some contents we can verify later expected_value = 'g'; gen_test_path(); fd = scribble_object(test_path, expected_value); close(fd); // Give the other some different value so we can detect success gen_test_path2(); fd2 = scribble_object(test_path2, 'h'); close(fd2); ATF_REQUIRE_MSG(shm_rename(test_path, test_path2, 0) == 0, "shm_rename failed; errno=%d", errno); // Read back renamed; verify contents verify_object(test_path2, expected_value); } ATF_TC_WITHOUT_HEAD(rename_to_noreplace); ATF_TC_BODY(rename_to_noreplace, tc) { char expected_value_from; char expected_value_to; int fd_from; int fd_to; int rc; // Some contents we can verify later expected_value_from = 'g'; gen_test_path(); fd_from = scribble_object(test_path, expected_value_from); close(fd_from); // Give the other some different value so we can detect success expected_value_to = 'h'; gen_test_path2(); fd_to = scribble_object(test_path2, expected_value_to); close(fd_to); rc = shm_rename(test_path, test_path2, SHM_RENAME_NOREPLACE); ATF_REQUIRE_MSG((rc == -1) && (errno == EEXIST), "shm_rename didn't fail as expected; errno: %d; return: %d", errno, rc); // Read back renamed; verify contents verify_object(test_path2, expected_value_to); } ATF_TC_WITHOUT_HEAD(rename_to_exchange); ATF_TC_BODY(rename_to_exchange, tc) { char expected_value_from; char expected_value_to; int fd_from; int fd_to; // Some contents we can verify later expected_value_from = 'g'; gen_test_path(); fd_from = scribble_object(test_path, expected_value_from); close(fd_from); // Give the other some different value so we can detect success expected_value_to = 'h'; gen_test_path2(); fd_to = scribble_object(test_path2, expected_value_to); close(fd_to); ATF_REQUIRE_MSG(shm_rename(test_path, test_path2, SHM_RENAME_EXCHANGE) == 0, "shm_rename failed; errno=%d", errno); // Read back renamed; verify contents verify_object(test_path, expected_value_to); verify_object(test_path2, expected_value_from); } ATF_TC_WITHOUT_HEAD(rename_to_exchange_nonexisting); ATF_TC_BODY(rename_to_exchange_nonexisting, tc) { char expected_value_from; int fd_from; // Some contents we can verify later expected_value_from = 'g'; gen_test_path(); fd_from = scribble_object(test_path, expected_value_from); close(fd_from); gen_test_path2(); ATF_REQUIRE_MSG(shm_rename(test_path, test_path2, SHM_RENAME_EXCHANGE) == 0, "shm_rename failed; errno=%d", errno); // Read back renamed; verify contents verify_object(test_path2, expected_value_from); } ATF_TC_WITHOUT_HEAD(rename_to_self); ATF_TC_BODY(rename_to_self, tc) { int fd; char expected_value; expected_value = 't'; gen_test_path(); fd = scribble_object(test_path, expected_value); close(fd); ATF_REQUIRE_MSG(shm_rename(test_path, test_path, 0) == 0, "shm_rename failed; errno=%d", errno); verify_object(test_path, expected_value); } ATF_TC_WITHOUT_HEAD(rename_bad_flag); ATF_TC_BODY(rename_bad_flag, tc) { int fd; int rc; /* Make sure we don't fail out due to ENOENT */ gen_test_path(); gen_test_path2(); fd = scribble_object(test_path, 'd'); close(fd); fd = scribble_object(test_path2, 'd'); close(fd); /* * Note: if we end up with enough flags that we use all the bits, * then remove this test completely. */ rc = shm_rename(test_path, test_path2, INT_MIN); ATF_REQUIRE_MSG((rc == -1) && (errno == EINVAL), "shm_rename should have failed with EINVAL; got: return=%d, " "errno=%d", rc, errno); } ATF_TC_WITHOUT_HEAD(reopen_object); ATF_TC_BODY(reopen_object, tc) { char *page; int fd, pagesize; ATF_REQUIRE(0 < (pagesize = getpagesize())); gen_test_path(); fd = scribble_object(test_path, '1'); close(fd); fd = shm_open(test_path, O_RDONLY, 0777); if (fd < 0) atf_tc_fail("shm_open(2) failed; errno=%d", errno); page = mmap(0, pagesize, PROT_READ, MAP_SHARED, fd, 0); if (page == MAP_FAILED) atf_tc_fail("mmap(2) failed; errno=%d", errno); if (page[0] != '1') atf_tc_fail("missing data ('%c' != '1')", page[0]); ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d", errno); close(fd); ATF_REQUIRE_MSG(shm_unlink(test_path) != -1, "shm_unlink failed; errno=%d", errno); } ATF_TC_WITHOUT_HEAD(readonly_mmap_write); ATF_TC_BODY(readonly_mmap_write, tc) { char *page; int fd, pagesize; ATF_REQUIRE(0 < (pagesize = getpagesize())); gen_test_path(); fd = shm_open(test_path, O_RDONLY | O_CREAT, 0777); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno=%d", errno); /* PROT_WRITE should fail with EACCES. */ page = mmap(0, pagesize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); if (page != MAP_FAILED) atf_tc_fail("mmap(PROT_WRITE) succeeded unexpectedly"); if (errno != EACCES) atf_tc_fail("mmap(PROT_WRITE) didn't fail with EACCES; " "errno=%d", errno); close(fd); ATF_REQUIRE_MSG(shm_unlink(test_path) != -1, "shm_unlink failed; errno=%d", errno); } ATF_TC_WITHOUT_HEAD(open_after_link); ATF_TC_BODY(open_after_link, tc) { int fd; gen_test_path(); fd = shm_open(test_path, O_RDONLY | O_CREAT, 0777); ATF_REQUIRE_MSG(fd >= 0, "shm_open(1) failed; errno=%d", errno); close(fd); ATF_REQUIRE_MSG(shm_unlink(test_path) != -1, "shm_unlink failed: %d", errno); shm_open_should_fail(test_path, O_RDONLY, 0777, ENOENT); } ATF_TC_WITHOUT_HEAD(open_invalid_path); ATF_TC_BODY(open_invalid_path, tc) { shm_open_should_fail("blah", O_RDONLY, 0777, EINVAL); } ATF_TC_WITHOUT_HEAD(open_write_only); ATF_TC_BODY(open_write_only, tc) { gen_test_path(); shm_open_should_fail(test_path, O_WRONLY, 0777, EINVAL); } ATF_TC_WITHOUT_HEAD(open_extra_flags); ATF_TC_BODY(open_extra_flags, tc) { gen_test_path(); shm_open_should_fail(test_path, O_RDONLY | O_DIRECT, 0777, EINVAL); } ATF_TC_WITHOUT_HEAD(open_anon); ATF_TC_BODY(open_anon, tc) { int fd; fd = shm_open(SHM_ANON, O_RDWR, 0777); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno=%d", errno); close(fd); } ATF_TC_WITHOUT_HEAD(open_anon_readonly); ATF_TC_BODY(open_anon_readonly, tc) { shm_open_should_fail(SHM_ANON, O_RDONLY, 0777, EINVAL); } ATF_TC_WITHOUT_HEAD(open_bad_path_pointer); ATF_TC_BODY(open_bad_path_pointer, tc) { shm_open_should_fail((char *)1024, O_RDONLY, 0777, EFAULT); } ATF_TC_WITHOUT_HEAD(open_path_too_long); ATF_TC_BODY(open_path_too_long, tc) { char *page; page = malloc(MAXPATHLEN + 1); memset(page, 'a', MAXPATHLEN); page[MAXPATHLEN] = '\0'; shm_open_should_fail(page, O_RDONLY, 0777, ENAMETOOLONG); free(page); } ATF_TC_WITHOUT_HEAD(open_nonexisting_object); ATF_TC_BODY(open_nonexisting_object, tc) { shm_open_should_fail("/notreallythere", O_RDONLY, 0777, ENOENT); } ATF_TC_WITHOUT_HEAD(open_create_existing_object); ATF_TC_BODY(open_create_existing_object, tc) { int fd; gen_test_path(); fd = shm_open(test_path, O_RDONLY|O_CREAT, 0777); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno=%d", errno); close(fd); shm_open_should_fail(test_path, O_RDONLY|O_CREAT|O_EXCL, 0777, EEXIST); ATF_REQUIRE_MSG(shm_unlink(test_path) != -1, "shm_unlink failed; errno=%d", errno); } ATF_TC_WITHOUT_HEAD(trunc_resets_object); ATF_TC_BODY(trunc_resets_object, tc) { struct stat sb; int fd; gen_test_path(); /* Create object and set size to 1024. */ fd = shm_open(test_path, O_RDWR | O_CREAT, 0777); ATF_REQUIRE_MSG(fd >= 0, "shm_open(1) failed; errno=%d", errno); ATF_REQUIRE_MSG(ftruncate(fd, 1024) != -1, "ftruncate failed; errno=%d", errno); ATF_REQUIRE_MSG(fstat(fd, &sb) != -1, "fstat(1) failed; errno=%d", errno); ATF_REQUIRE_MSG(sb.st_size == 1024, "size %d != 1024", (int)sb.st_size); close(fd); /* Open with O_TRUNC which should reset size to 0. */ fd = shm_open(test_path, O_RDWR | O_TRUNC, 0777); ATF_REQUIRE_MSG(fd >= 0, "shm_open(2) failed; errno=%d", errno); ATF_REQUIRE_MSG(fstat(fd, &sb) != -1, "fstat(2) failed; errno=%d", errno); ATF_REQUIRE_MSG(sb.st_size == 0, "size was not 0 after truncation: %d", (int)sb.st_size); close(fd); ATF_REQUIRE_MSG(shm_unlink(test_path) != -1, "shm_unlink failed; errno=%d", errno); } ATF_TC_WITHOUT_HEAD(unlink_bad_path_pointer); ATF_TC_BODY(unlink_bad_path_pointer, tc) { shm_unlink_should_fail((char *)1024, EFAULT); } ATF_TC_WITHOUT_HEAD(unlink_path_too_long); ATF_TC_BODY(unlink_path_too_long, tc) { char *page; page = malloc(MAXPATHLEN + 1); memset(page, 'a', MAXPATHLEN); page[MAXPATHLEN] = '\0'; shm_unlink_should_fail(page, ENAMETOOLONG); free(page); } ATF_TC_WITHOUT_HEAD(object_resize); ATF_TC_BODY(object_resize, tc) { pid_t pid; struct stat sb; char *page; int fd, pagesize, status; ATF_REQUIRE(0 < (pagesize = getpagesize())); /* Start off with a size of a single page. */ fd = shm_open(SHM_ANON, O_CREAT|O_RDWR, 0777); if (fd < 0) atf_tc_fail("shm_open failed; errno=%d", errno); if (ftruncate(fd, pagesize) < 0) atf_tc_fail("ftruncate(1) failed; errno=%d", errno); if (fstat(fd, &sb) < 0) atf_tc_fail("fstat(1) failed; errno=%d", errno); if (sb.st_size != pagesize) atf_tc_fail("first resize failed (%d != %d)", (int)sb.st_size, pagesize); /* Write a '1' to the first byte. */ page = mmap(0, pagesize, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); if (page == MAP_FAILED) atf_tc_fail("mmap(1)"); page[0] = '1'; ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d", errno); /* Grow the object to 2 pages. */ if (ftruncate(fd, pagesize * 2) < 0) atf_tc_fail("ftruncate(2) failed; errno=%d", errno); if (fstat(fd, &sb) < 0) atf_tc_fail("fstat(2) failed; errno=%d", errno); if (sb.st_size != pagesize * 2) atf_tc_fail("second resize failed (%d != %d)", (int)sb.st_size, pagesize * 2); /* Check for '1' at the first byte. */ page = mmap(0, pagesize * 2, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); if (page == MAP_FAILED) atf_tc_fail("mmap(2) failed; errno=%d", errno); if (page[0] != '1') atf_tc_fail("'%c' != '1'", page[0]); /* Write a '2' at the start of the second page. */ page[pagesize] = '2'; /* Shrink the object back to 1 page. */ if (ftruncate(fd, pagesize) < 0) atf_tc_fail("ftruncate(3) failed; errno=%d", errno); if (fstat(fd, &sb) < 0) atf_tc_fail("fstat(3) failed; errno=%d", errno); if (sb.st_size != pagesize) atf_tc_fail("third resize failed (%d != %d)", (int)sb.st_size, pagesize); /* * Fork a child process to make sure the second page is no * longer valid. */ pid = fork(); if (pid == -1) atf_tc_fail("fork failed; errno=%d", errno); if (pid == 0) { struct rlimit lim; char c; /* Don't generate a core dump. */ ATF_REQUIRE(getrlimit(RLIMIT_CORE, &lim) == 0); lim.rlim_cur = 0; ATF_REQUIRE(setrlimit(RLIMIT_CORE, &lim) == 0); /* * The previous ftruncate(2) shrunk the backing object * so that this address is no longer valid, so reading * from it should trigger a SIGBUS. */ c = page[pagesize]; fprintf(stderr, "child: page 1: '%c'\n", c); exit(0); } if (wait(&status) < 0) atf_tc_fail("wait failed; errno=%d", errno); if (!WIFSIGNALED(status) || WTERMSIG(status) != SIGBUS) atf_tc_fail("child terminated with status %x", status); /* Grow the object back to 2 pages. */ if (ftruncate(fd, pagesize * 2) < 0) atf_tc_fail("ftruncate(2) failed; errno=%d", errno); if (fstat(fd, &sb) < 0) atf_tc_fail("fstat(2) failed; errno=%d", errno); if (sb.st_size != pagesize * 2) atf_tc_fail("fourth resize failed (%d != %d)", (int)sb.st_size, pagesize); /* * Note that the mapping at 'page' for the second page is * still valid, and now that the shm object has been grown * back up to 2 pages, there is now memory backing this page * so the read will work. However, the data should be zero * rather than '2' as the old data was thrown away when the * object was shrunk and the new pages when an object are * grown are zero-filled. */ if (page[pagesize] != 0) atf_tc_fail("invalid data at %d: %x != 0", pagesize, (int)page[pagesize]); close(fd); } /* Signal handler which does nothing. */ static void ignoreit(int sig __unused) { ; } ATF_TC_WITHOUT_HEAD(shm_functionality_across_fork); ATF_TC_BODY(shm_functionality_across_fork, tc) { char *cp, c; int error, desc, rv; long scval; sigset_t ss; struct sigaction sa; void *region; size_t i, psize; #ifndef _POSIX_SHARED_MEMORY_OBJECTS printf("_POSIX_SHARED_MEMORY_OBJECTS is undefined\n"); #else printf("_POSIX_SHARED_MEMORY_OBJECTS is defined as %ld\n", (long)_POSIX_SHARED_MEMORY_OBJECTS - 0); if (_POSIX_SHARED_MEMORY_OBJECTS - 0 == -1) printf("***Indicates this feature may be unsupported!\n"); #endif errno = 0; scval = sysconf(_SC_SHARED_MEMORY_OBJECTS); if (scval == -1 && errno != 0) { atf_tc_fail("sysconf(_SC_SHARED_MEMORY_OBJECTS) failed; " "errno=%d", errno); } else { printf("sysconf(_SC_SHARED_MEMORY_OBJECTS) returns %ld\n", scval); if (scval == -1) printf("***Indicates this feature is unsupported!\n"); } errno = 0; scval = sysconf(_SC_PAGESIZE); if (scval == -1 && errno != 0) { atf_tc_fail("sysconf(_SC_PAGESIZE) failed; errno=%d", errno); } else if (scval <= 0) { fprintf(stderr, "bogus return from sysconf(_SC_PAGESIZE): %ld", scval); psize = 4096; } else { printf("sysconf(_SC_PAGESIZE) returns %ld\n", scval); psize = scval; } gen_test_path(); desc = shm_open(test_path, O_EXCL | O_CREAT | O_RDWR, 0600); ATF_REQUIRE_MSG(desc >= 0, "shm_open failed; errno=%d", errno); ATF_REQUIRE_MSG(shm_unlink(test_path) == 0, "shm_unlink failed; errno=%d", errno); ATF_REQUIRE_MSG(ftruncate(desc, (off_t)psize) != -1, "ftruncate failed; errno=%d", errno); region = mmap(NULL, psize, PROT_READ | PROT_WRITE, MAP_SHARED, desc, 0); ATF_REQUIRE_MSG(region != MAP_FAILED, "mmap failed; errno=%d", errno); memset(region, '\377', psize); sa.sa_flags = 0; sa.sa_handler = ignoreit; sigemptyset(&sa.sa_mask); ATF_REQUIRE_MSG(sigaction(SIGUSR1, &sa, (struct sigaction *)0) == 0, "sigaction failed; errno=%d", errno); sigemptyset(&ss); sigaddset(&ss, SIGUSR1); ATF_REQUIRE_MSG(sigprocmask(SIG_BLOCK, &ss, (sigset_t *)0) == 0, "sigprocmask failed; errno=%d", errno); rv = fork(); ATF_REQUIRE_MSG(rv != -1, "fork failed; errno=%d", errno); if (rv == 0) { sigemptyset(&ss); sigsuspend(&ss); for (cp = region; cp < (char *)region + psize; cp++) { if (*cp != '\151') _exit(1); } if (lseek(desc, 0, SEEK_SET) == -1) _exit(1); for (i = 0; i < psize; i++) { error = read(desc, &c, 1); if (c != '\151') _exit(1); } _exit(0); } else { int status; memset(region, '\151', psize - 2); error = pwrite(desc, region, 2, psize - 2); if (error != 2) { if (error >= 0) atf_tc_fail("short write; %d bytes written", error); else atf_tc_fail("shmfd write"); } kill(rv, SIGUSR1); waitpid(rv, &status, 0); if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { printf("Functionality test successful\n"); } else if (WIFEXITED(status)) { atf_tc_fail("Child process exited with status %d", WEXITSTATUS(status)); } else { atf_tc_fail("Child process terminated with %s", strsignal(WTERMSIG(status))); } } ATF_REQUIRE_MSG(munmap(region, psize) == 0, "munmap failed; errno=%d", errno); shm_unlink(test_path); } ATF_TC_WITHOUT_HEAD(cloexec); ATF_TC_BODY(cloexec, tc) { int fd; gen_test_path(); /* shm_open(2) is required to set FD_CLOEXEC */ fd = shm_open(SHM_ANON, O_RDWR, 0777); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno=%d", errno); ATF_REQUIRE((fcntl(fd, F_GETFD) & FD_CLOEXEC) != 0); close(fd); /* Also make sure that named shm is correct */ fd = shm_open(test_path, O_CREAT | O_RDWR, 0600); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno=%d", errno); ATF_REQUIRE((fcntl(fd, F_GETFD) & FD_CLOEXEC) != 0); close(fd); } ATF_TC_WITHOUT_HEAD(mode); ATF_TC_BODY(mode, tc) { struct stat st; int fd; mode_t restore_mask; gen_test_path(); /* Remove inhibitions from umask */ restore_mask = umask(0); fd = shm_open(test_path, O_CREAT | O_RDWR, 0600); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno=%d", errno); ATF_REQUIRE(fstat(fd, &st) == 0); ATF_REQUIRE((st.st_mode & ACCESSPERMS) == 0600); close(fd); ATF_REQUIRE(shm_unlink(test_path) == 0); fd = shm_open(test_path, O_CREAT | O_RDWR, 0660); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno=%d", errno); ATF_REQUIRE(fstat(fd, &st) == 0); ATF_REQUIRE((st.st_mode & ACCESSPERMS) == 0660); close(fd); ATF_REQUIRE(shm_unlink(test_path) == 0); fd = shm_open(test_path, O_CREAT | O_RDWR, 0666); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno=%d", errno); ATF_REQUIRE(fstat(fd, &st) == 0); ATF_REQUIRE((st.st_mode & ACCESSPERMS) == 0666); close(fd); ATF_REQUIRE(shm_unlink(test_path) == 0); umask(restore_mask); } ATF_TC_WITHOUT_HEAD(fallocate); ATF_TC_BODY(fallocate, tc) { struct stat st; int error, fd, sz; /* * Primitive test case for posix_fallocate with shmd. Effectively * expected to work like a smarter ftruncate that will grow the region * as needed in a race-free way. */ fd = shm_open(SHM_ANON, O_RDWR, 0666); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno=%d", errno); /* Set the initial size. */ sz = 32; ATF_REQUIRE(ftruncate(fd, sz) == 0); /* Now grow it. */ error = 0; sz *= 2; ATF_REQUIRE_MSG((error = posix_fallocate(fd, 0, sz)) == 0, "posix_fallocate failed; error=%d", error); ATF_REQUIRE(fstat(fd, &st) == 0); ATF_REQUIRE(st.st_size == sz); /* Attempt to shrink it; should succeed, but not change the size. */ ATF_REQUIRE_MSG((error = posix_fallocate(fd, 0, sz / 2)) == 0, "posix_fallocate failed; error=%d", error); ATF_REQUIRE(fstat(fd, &st) == 0); ATF_REQUIRE(st.st_size == sz); /* Grow it using an offset of sz and len of sz. */ ATF_REQUIRE_MSG((error = posix_fallocate(fd, sz, sz)) == 0, "posix_fallocate failed; error=%d", error); ATF_REQUIRE(fstat(fd, &st) == 0); ATF_REQUIRE(st.st_size == sz * 2); close(fd); } ATF_TC_WITHOUT_HEAD(fspacectl); ATF_TC_BODY(fspacectl, tc) { struct spacectl_range range; off_t offset, length, shm_sz; size_t page_size; int fd, error; page_size = getpagesize(); shm_sz = shm_max_pages * page_size; fd = shm_open("/testtest", O_RDWR | O_CREAT, 0666); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno:%d", errno); ATF_REQUIRE_MSG((error = posix_fallocate(fd, 0, shm_sz)) == 0, "posix_fallocate failed; error=%d", error); /* Aligned fspacectl(fd, SPACECTL_DEALLOC, ...) */ ATF_REQUIRE(shm_fill(fd, 0, shm_sz) == 0); range.r_offset = offset = page_size; range.r_len = length = ((shm_max_pages - 1) * page_size) - range.r_offset; ATF_CHECK_MSG(fspacectl(fd, SPACECTL_DEALLOC, &range, 0, &range) == 0, "Aligned fspacectl failed; errno=%d", errno); ATF_CHECK_MSG(check_content_dealloc(fd, offset, length, shm_sz) == 0, "Aligned fspacectl content checking failed"); /* Unaligned fspacectl(fd, SPACECTL_DEALLOC, ...) */ ATF_REQUIRE(shm_fill(fd, 0, shm_sz) == 0); range.r_offset = offset = page_size / 2; range.r_len = length = (shm_max_pages - 1) * page_size + (page_size / 2) - offset; ATF_CHECK_MSG(fspacectl(fd, SPACECTL_DEALLOC, &range, 0, &range) == 0, "Unaligned fspacectl failed; errno=%d", errno); ATF_CHECK_MSG(check_content_dealloc(fd, offset, length, shm_sz) == 0, "Unaligned fspacectl content checking failed"); /* Aligned fspacectl(fd, SPACECTL_DEALLOC, ...) to OFF_MAX */ ATF_REQUIRE(shm_fill(fd, 0, shm_sz) == 0); range.r_offset = offset = page_size; range.r_len = length = OFF_MAX - offset; ATF_CHECK_MSG(fspacectl(fd, SPACECTL_DEALLOC, &range, 0, &range) == 0, "Aligned fspacectl to OFF_MAX failed; errno=%d", errno); ATF_CHECK_MSG(check_content_dealloc(fd, offset, length, shm_sz) == 0, "Aligned fspacectl to OFF_MAX content checking failed"); /* Unaligned fspacectl(fd, SPACECTL_DEALLOC, ...) to OFF_MAX */ ATF_REQUIRE(shm_fill(fd, 0, shm_sz) == 0); range.r_offset = offset = page_size / 2; range.r_len = length = OFF_MAX - offset; ATF_CHECK_MSG(fspacectl(fd, SPACECTL_DEALLOC, &range, 0, &range) == 0, "Unaligned fspacectl to OFF_MAX failed; errno=%d", errno); ATF_CHECK_MSG(check_content_dealloc(fd, offset, length, shm_sz) == 0, "Unaligned fspacectl to OFF_MAX content checking failed"); /* Aligned fspacectl(fd, SPACECTL_DEALLOC, ...) past shm_sz */ ATF_REQUIRE(shm_fill(fd, 0, shm_sz) == 0); range.r_offset = offset = page_size; range.r_len = length = (shm_max_pages + 1) * page_size - offset; ATF_CHECK_MSG(fspacectl(fd, SPACECTL_DEALLOC, &range, 0, &range) == 0, "Aligned fspacectl past shm_sz failed; errno=%d", errno); ATF_CHECK_MSG(check_content_dealloc(fd, offset, length, shm_sz) == 0, "Aligned fspacectl past shm_sz content checking failed"); /* Unaligned fspacectl(fd, SPACECTL_DEALLOC, ...) past shm_sz */ ATF_REQUIRE(shm_fill(fd, 0, shm_sz) == 0); range.r_offset = offset = page_size / 2; range.r_len = length = (shm_max_pages + 1) * page_size - offset; ATF_CHECK_MSG(fspacectl(fd, SPACECTL_DEALLOC, &range, 0, &range) == 0, "Unaligned fspacectl past shm_sz failed; errno=%d", errno); ATF_CHECK_MSG(check_content_dealloc(fd, offset, length, shm_sz) == 0, "Unaligned fspacectl past shm_sz content checking failed"); ATF_REQUIRE(close(fd) == 0); } +ATF_TC_WITHOUT_HEAD(accounting); +ATF_TC_BODY(accounting, tc) +{ + struct spacectl_range range; + struct stat st; + off_t shm_sz, len; + size_t page_size; + int fd, error; + + page_size = getpagesize(); + shm_sz = shm_max_pages * page_size; + + fd = shm_open("/testtest1", O_RDWR | O_CREAT, 0666); + ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno:%d", errno); + ATF_REQUIRE_MSG((error = posix_fallocate(fd, 0, shm_sz)) == 0, + "posix_fallocate failed; error=%d", error); + + ATF_REQUIRE(shm_fill(fd, 0, shm_sz) == 0); + ATF_REQUIRE(fstat(fd, &st) == 0); + ATF_REQUIRE(st.st_blksize * st.st_blocks == (blkcnt_t)shm_sz); + + range.r_offset = page_size; + range.r_len = len = (shm_max_pages - 1) * page_size - + range.r_offset; + ATF_CHECK_MSG(fspacectl(fd, SPACECTL_DEALLOC, &range, 0, &range) == 0, + "SPACECTL_DEALLOC failed; errno=%d", errno); + ATF_REQUIRE(fstat(fd, &st) == 0); + ATF_REQUIRE(st.st_blksize * st.st_blocks == (blkcnt_t)(shm_sz - len)); + + ATF_REQUIRE(close(fd) == 0); +} + static int shm_open_large(int psind, int policy, size_t sz) { int error, fd; fd = shm_create_largepage(SHM_ANON, O_CREAT | O_RDWR, psind, policy, 0); if (fd < 0 && errno == ENOTTY) atf_tc_skip("no large page support"); ATF_REQUIRE_MSG(fd >= 0, "shm_create_largepage failed; errno=%d", errno); error = ftruncate(fd, sz); if (error != 0 && errno == ENOMEM) /* * The test system might not have enough memory to accommodate * the request. */ atf_tc_skip("failed to allocate %zu-byte superpage", sz); ATF_REQUIRE_MSG(error == 0, "ftruncate failed; errno=%d", errno); return (fd); } static int pagesizes(size_t ps[MAXPAGESIZES]) { int pscnt; pscnt = getpagesizes(ps, MAXPAGESIZES); ATF_REQUIRE_MSG(pscnt != -1, "getpagesizes failed; errno=%d", errno); ATF_REQUIRE_MSG(ps[0] != 0, "psind 0 is %zu", ps[0]); ATF_REQUIRE_MSG(pscnt <= MAXPAGESIZES, "invalid pscnt %d", pscnt); if (pscnt == 1) atf_tc_skip("no large page support"); return (pscnt); } ATF_TC_WITHOUT_HEAD(largepage_basic); ATF_TC_BODY(largepage_basic, tc) { char *zeroes; char *addr, *vec; size_t ps[MAXPAGESIZES]; int error, fd, pscnt; pscnt = pagesizes(ps); zeroes = calloc(1, ps[0]); ATF_REQUIRE(zeroes != NULL); for (int i = 1; i < pscnt; i++) { fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]); addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; errno=%d", ps[i], errno); ATF_REQUIRE_MSG(((uintptr_t)addr & (ps[i] - 1)) == 0, "mmap(%zu bytes) returned unaligned mapping; addr=%p", ps[i], addr); /* Force a page fault. */ *(volatile char *)addr = 0; vec = malloc(ps[i] / ps[0]); ATF_REQUIRE(vec != NULL); error = mincore(addr, ps[i], vec); ATF_REQUIRE_MSG(error == 0, "mincore failed; errno=%d", errno); /* Verify that all pages in the run are mapped. */ for (size_t p = 0; p < ps[i] / ps[0]; p++) { ATF_REQUIRE_MSG((vec[p] & MINCORE_INCORE) != 0, "page %zu is not mapped", p); ATF_REQUIRE_MSG((vec[p] & MINCORE_PSIND(i)) != 0, "page %zu is not in a %zu-byte superpage", p, ps[i]); } /* Validate zeroing. */ for (size_t p = 0; p < ps[i] / ps[0]; p++) { ATF_REQUIRE_MSG(memcmp(addr + p * ps[0], zeroes, ps[0]) == 0, "page %zu miscompare", p); } free(vec); ATF_REQUIRE(munmap(addr, ps[i]) == 0); ATF_REQUIRE(close(fd) == 0); } free(zeroes); } extern int __sys_shm_open2(const char *, int, mode_t, int, const char *); ATF_TC_WITHOUT_HEAD(largepage_config); ATF_TC_BODY(largepage_config, tc) { struct shm_largepage_conf lpc; char *addr, *buf; size_t ps[MAXPAGESIZES + 1]; /* silence warnings if MAXPAGESIZES == 1 */ int error, fd; (void)pagesizes(ps); fd = shm_open(SHM_ANON, O_CREAT | O_RDWR, 0); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; error=%d", errno); /* * Configure a large page policy for an object created without * SHM_LARGEPAGE. */ lpc.psind = 1; lpc.alloc_policy = SHM_LARGEPAGE_ALLOC_DEFAULT; error = ioctl(fd, FIOSSHMLPGCNF, &lpc); ATF_REQUIRE(error != 0); ATF_REQUIRE_MSG(errno == ENOTTY, "ioctl(FIOSSHMLPGCNF) returned %d", errno); ATF_REQUIRE(close(fd) == 0); /* * Create a largepage object and try to use it without actually * configuring anything. */ fd = __sys_shm_open2(SHM_ANON, O_CREAT | O_RDWR, 0, SHM_LARGEPAGE, NULL); if (fd < 0 && errno == ENOTTY) atf_tc_skip("no large page support"); ATF_REQUIRE_MSG(fd >= 0, "shm_open2 failed; error=%d", errno); error = ftruncate(fd, ps[1]); ATF_REQUIRE(error != 0); ATF_REQUIRE_MSG(errno == EINVAL, "ftruncate returned %d", errno); addr = mmap(NULL, ps[1], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE(addr == MAP_FAILED); ATF_REQUIRE_MSG(errno == EINVAL, "mmap returned %d", errno); addr = mmap(NULL, 0, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE(addr == MAP_FAILED); ATF_REQUIRE_MSG(errno == EINVAL, "mmap returned %d", errno); buf = calloc(1, ps[0]); ATF_REQUIRE(buf != NULL); ATF_REQUIRE(write(fd, buf, ps[0]) == -1); ATF_REQUIRE_MSG(errno == EINVAL, "write returned %d", errno); free(buf); buf = calloc(1, ps[1]); ATF_REQUIRE(buf != NULL); ATF_REQUIRE(write(fd, buf, ps[1]) == -1); ATF_REQUIRE_MSG(errno == EINVAL, "write returned %d", errno); free(buf); error = posix_fallocate(fd, 0, ps[0]); ATF_REQUIRE_MSG(error == EINVAL, "posix_fallocate returned %d", error); ATF_REQUIRE(close(fd) == 0); } ATF_TC_WITHOUT_HEAD(largepage_mmap); ATF_TC_BODY(largepage_mmap, tc) { char *addr, *addr1, *vec; size_t ps[MAXPAGESIZES]; int fd, pscnt; pscnt = pagesizes(ps); for (int i = 1; i < pscnt; i++) { fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]); /* For mincore(). */ vec = malloc(ps[i]); ATF_REQUIRE(vec != NULL); /* * Wrong mapping size. */ addr = mmap(NULL, ps[i - 1], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr == MAP_FAILED, "mmap(%zu bytes) succeeded", ps[i - 1]); ATF_REQUIRE_MSG(errno == EINVAL, "mmap(%zu bytes) failed; error=%d", ps[i - 1], errno); /* * Fixed mappings. */ addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; errno=%d", ps[i], errno); ATF_REQUIRE_MSG(((uintptr_t)addr & (ps[i] - 1)) == 0, "mmap(%zu bytes) returned unaligned mapping; addr=%p", ps[i], addr); /* Try mapping a small page with anonymous memory. */ addr1 = mmap(addr, ps[i - 1], PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0); ATF_REQUIRE_MSG(addr1 == MAP_FAILED, "anon mmap(%zu bytes) succeeded", ps[i - 1]); ATF_REQUIRE_MSG(errno == EINVAL, "mmap returned %d", errno); /* Check MAP_EXCL when creating a second largepage mapping. */ addr1 = mmap(addr, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED | MAP_EXCL, fd, 0); ATF_REQUIRE_MSG(addr1 == MAP_FAILED, "mmap(%zu bytes) succeeded", ps[i]); /* XXX wrong errno */ ATF_REQUIRE_MSG(errno == ENOSPC, "mmap returned %d", errno); /* Overwrite a largepage mapping with a lagepage mapping. */ addr1 = mmap(addr, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, 0); ATF_REQUIRE_MSG(addr1 != MAP_FAILED, "mmap(%zu bytes) failed; errno=%d", ps[i], errno); ATF_REQUIRE_MSG(addr == addr1, "mmap(%zu bytes) moved from %p to %p", ps[i], addr, addr1); ATF_REQUIRE(munmap(addr, ps[i] == 0)); /* Clobber an anonymous mapping with a superpage. */ addr1 = mmap(NULL, ps[0], PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_ALIGNED(ffsl(ps[i]) - 1), -1, 0); ATF_REQUIRE_MSG(addr1 != MAP_FAILED, "mmap failed; error=%d", errno); *(volatile char *)addr1 = '\0'; addr = mmap(addr1, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap failed; error=%d", errno); ATF_REQUIRE_MSG(addr == addr1, "mmap disobeyed MAP_FIXED, %p %p", addr, addr1); *(volatile char *)addr = 0; /* fault */ ATF_REQUIRE(mincore(addr, ps[i], vec) == 0); for (size_t p = 0; p < ps[i] / ps[0]; p++) { ATF_REQUIRE_MSG((vec[p] & MINCORE_INCORE) != 0, "page %zu is not resident", p); ATF_REQUIRE_MSG((vec[p] & MINCORE_PSIND(i)) != 0, "page %zu is not resident", p); } /* * Copy-on-write mappings are not permitted. */ addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); ATF_REQUIRE_MSG(addr == MAP_FAILED, "mmap(%zu bytes) succeeded", ps[i]); ATF_REQUIRE(close(fd) == 0); } } ATF_TC_WITHOUT_HEAD(largepage_munmap); ATF_TC_BODY(largepage_munmap, tc) { char *addr; size_t ps[MAXPAGESIZES], ps1; int fd, pscnt; pscnt = pagesizes(ps); for (int i = 1; i < pscnt; i++) { fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]); ps1 = ps[i - 1]; addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; errno=%d", ps[i], errno); /* Try several unaligned munmap() requests. */ ATF_REQUIRE(munmap(addr, ps1) != 0); ATF_REQUIRE_MSG(errno == EINVAL, "unexpected error %d from munmap", errno); ATF_REQUIRE(munmap(addr, ps[i] - ps1)); ATF_REQUIRE_MSG(errno == EINVAL, "unexpected error %d from munmap", errno); ATF_REQUIRE(munmap(addr + ps1, ps1) != 0); ATF_REQUIRE_MSG(errno == EINVAL, "unexpected error %d from munmap", errno); ATF_REQUIRE(munmap(addr, 0)); ATF_REQUIRE_MSG(errno == EINVAL, "unexpected error %d from munmap", errno); ATF_REQUIRE(munmap(addr, ps[i]) == 0); ATF_REQUIRE(close(fd) == 0); } } static void largepage_madvise(char *addr, size_t sz, int advice, int error) { if (error == 0) { ATF_REQUIRE_MSG(madvise(addr, sz, advice) == 0, "madvise(%zu, %d) failed; error=%d", sz, advice, errno); } else { ATF_REQUIRE_MSG(madvise(addr, sz, advice) != 0, "madvise(%zu, %d) succeeded", sz, advice); ATF_REQUIRE_MSG(errno == error, "unexpected error %d from madvise(%zu, %d)", errno, sz, advice); } } ATF_TC_WITHOUT_HEAD(largepage_madvise); ATF_TC_BODY(largepage_madvise, tc) { char *addr; size_t ps[MAXPAGESIZES]; int fd, pscnt; pscnt = pagesizes(ps); for (int i = 1; i < pscnt; i++) { fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]); addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; error=%d", ps[i], errno); memset(addr, 0, ps[i]); /* Advice that requires clipping. */ largepage_madvise(addr, ps[0], MADV_NORMAL, EINVAL); largepage_madvise(addr, ps[i], MADV_NORMAL, 0); largepage_madvise(addr, ps[0], MADV_RANDOM, EINVAL); largepage_madvise(addr, ps[i], MADV_RANDOM, 0); largepage_madvise(addr, ps[0], MADV_SEQUENTIAL, EINVAL); largepage_madvise(addr, ps[i], MADV_SEQUENTIAL, 0); largepage_madvise(addr, ps[0], MADV_NOSYNC, EINVAL); largepage_madvise(addr, ps[i], MADV_NOSYNC, 0); largepage_madvise(addr, ps[0], MADV_AUTOSYNC, EINVAL); largepage_madvise(addr, ps[i], MADV_AUTOSYNC, 0); largepage_madvise(addr, ps[0], MADV_CORE, EINVAL); largepage_madvise(addr, ps[i], MADV_CORE, 0); largepage_madvise(addr, ps[0], MADV_NOCORE, EINVAL); largepage_madvise(addr, ps[i], MADV_NOCORE, 0); /* Advice that does not result in clipping. */ largepage_madvise(addr, ps[0], MADV_DONTNEED, 0); largepage_madvise(addr, ps[i], MADV_DONTNEED, 0); largepage_madvise(addr, ps[0], MADV_WILLNEED, 0); largepage_madvise(addr, ps[i], MADV_WILLNEED, 0); largepage_madvise(addr, ps[0], MADV_FREE, 0); largepage_madvise(addr, ps[i], MADV_FREE, 0); ATF_REQUIRE(munmap(addr, ps[i]) == 0); ATF_REQUIRE(close(fd) == 0); } } ATF_TC(largepage_mlock); ATF_TC_HEAD(largepage_mlock, tc) { /* Needed to set rlimit. */ atf_tc_set_md_var(tc, "require.user", "root"); } ATF_TC_BODY(largepage_mlock, tc) { struct rlimit rl; char *addr; size_t ps[MAXPAGESIZES], sz; u_long max_wired, wired; int fd, error, pscnt; rl.rlim_cur = rl.rlim_max = RLIM_INFINITY; ATF_REQUIRE_MSG(setrlimit(RLIMIT_MEMLOCK, &rl) == 0, "setrlimit failed; error=%d", errno); sz = sizeof(max_wired); error = sysctlbyname("vm.max_user_wired", &max_wired, &sz, NULL, 0); ATF_REQUIRE_MSG(error == 0, "sysctlbyname(vm.max_user_wired) failed; error=%d", errno); sz = sizeof(wired); error = sysctlbyname("vm.stats.vm.v_user_wire_count", &wired, &sz, NULL, 0); ATF_REQUIRE_MSG(error == 0, "sysctlbyname(vm.stats.vm.v_user_wire_count) failed; error=%d", errno); pscnt = pagesizes(ps); for (int i = 1; i < pscnt; i++) { if (ps[i] / ps[0] > max_wired - wired) { /* Cannot wire past the limit. */ atf_tc_skip("test would exceed wiring limit"); } fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]); addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; error=%d", ps[i], errno); ATF_REQUIRE(mlock(addr, ps[0]) != 0); ATF_REQUIRE_MSG(errno == EINVAL, "unexpected error %d from mlock(%zu bytes)", errno, ps[i]); ATF_REQUIRE(mlock(addr, ps[i] - ps[0]) != 0); ATF_REQUIRE_MSG(errno == EINVAL, "unexpected error %d from mlock(%zu bytes)", errno, ps[i]); ATF_REQUIRE_MSG(mlock(addr, ps[i]) == 0, "mlock failed; error=%d", errno); ATF_REQUIRE(munmap(addr, ps[i]) == 0); ATF_REQUIRE(mlockall(MCL_FUTURE) == 0); addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; error=%d", ps[i], errno); ATF_REQUIRE(munmap(addr, ps[i]) == 0); ATF_REQUIRE(close(fd) == 0); } } ATF_TC_WITHOUT_HEAD(largepage_msync); ATF_TC_BODY(largepage_msync, tc) { char *addr; size_t ps[MAXPAGESIZES]; int fd, pscnt; pscnt = pagesizes(ps); for (int i = 1; i < pscnt; i++) { fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]); addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; error=%d", ps[i], errno); memset(addr, 0, ps[i]); /* * "Sync" requests are no-ops for SHM objects, so small * PAGE_SIZE-sized requests succeed. */ ATF_REQUIRE_MSG(msync(addr, ps[0], MS_ASYNC) == 0, "msync(MS_ASYNC) failed; error=%d", errno); ATF_REQUIRE_MSG(msync(addr, ps[i], MS_ASYNC) == 0, "msync(MS_ASYNC) failed; error=%d", errno); ATF_REQUIRE_MSG(msync(addr, ps[0], MS_SYNC) == 0, "msync(MS_SYNC) failed; error=%d", errno); ATF_REQUIRE_MSG(msync(addr, ps[i], MS_SYNC) == 0, "msync(MS_SYNC) failed; error=%d", errno); ATF_REQUIRE_MSG(msync(addr, ps[0], MS_INVALIDATE) != 0, "msync(MS_INVALIDATE) succeeded"); /* XXX wrong errno */ ATF_REQUIRE_MSG(errno == EBUSY, "unexpected error %d from msync(MS_INVALIDATE)", errno); ATF_REQUIRE_MSG(msync(addr, ps[i], MS_INVALIDATE) == 0, "msync(MS_INVALIDATE) failed; error=%d", errno); memset(addr, 0, ps[i]); ATF_REQUIRE(munmap(addr, ps[i]) == 0); ATF_REQUIRE(close(fd) == 0); } } static void largepage_protect(char *addr, size_t sz, int prot, int error) { if (error == 0) { ATF_REQUIRE_MSG(mprotect(addr, sz, prot) == 0, "mprotect(%zu, %x) failed; error=%d", sz, prot, errno); } else { ATF_REQUIRE_MSG(mprotect(addr, sz, prot) != 0, "mprotect(%zu, %x) succeeded", sz, prot); ATF_REQUIRE_MSG(errno == error, "unexpected error %d from mprotect(%zu, %x)", errno, sz, prot); } } ATF_TC_WITHOUT_HEAD(largepage_mprotect); ATF_TC_BODY(largepage_mprotect, tc) { char *addr, *addr1; size_t ps[MAXPAGESIZES]; int fd, pscnt; pscnt = pagesizes(ps); for (int i = 1; i < pscnt; i++) { /* * Reserve a contiguous region in the address space to avoid * spurious failures in the face of ASLR. */ addr = mmap(NULL, ps[i] * 2, PROT_NONE, MAP_ANON | MAP_ALIGNED(ffsl(ps[i]) - 1), -1, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; error=%d", ps[i], errno); ATF_REQUIRE(munmap(addr, ps[i] * 2) == 0); fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]); addr = mmap(addr, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; error=%d", ps[i], errno); /* * These should be no-ops from the pmap perspective since the * page is not yet entered into the pmap. */ largepage_protect(addr, ps[0], PROT_READ, EINVAL); largepage_protect(addr, ps[i], PROT_READ, 0); largepage_protect(addr, ps[0], PROT_NONE, EINVAL); largepage_protect(addr, ps[i], PROT_NONE, 0); largepage_protect(addr, ps[0], PROT_READ | PROT_WRITE | PROT_EXEC, EINVAL); largepage_protect(addr, ps[i], PROT_READ | PROT_WRITE | PROT_EXEC, 0); /* Trigger creation of a mapping and try again. */ *(volatile char *)addr = 0; largepage_protect(addr, ps[0], PROT_READ, EINVAL); largepage_protect(addr, ps[i], PROT_READ, 0); largepage_protect(addr, ps[0], PROT_NONE, EINVAL); largepage_protect(addr, ps[i], PROT_NONE, 0); largepage_protect(addr, ps[0], PROT_READ | PROT_WRITE | PROT_EXEC, EINVAL); largepage_protect(addr, ps[i], PROT_READ | PROT_WRITE | PROT_EXEC, 0); memset(addr, 0, ps[i]); /* Map two contiguous large pages and merge map entries. */ addr1 = mmap(addr + ps[i], ps[i], PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED | MAP_EXCL, fd, 0); ATF_REQUIRE_MSG(addr1 != MAP_FAILED, "mmap(%zu bytes) failed; error=%d", ps[i], errno); largepage_protect(addr1 - ps[0], ps[0] * 2, PROT_READ | PROT_WRITE, EINVAL); largepage_protect(addr, ps[i] * 2, PROT_READ | PROT_WRITE, 0); memset(addr, 0, ps[i] * 2); ATF_REQUIRE(munmap(addr, ps[i]) == 0); ATF_REQUIRE(munmap(addr1, ps[i]) == 0); ATF_REQUIRE(close(fd) == 0); } } ATF_TC_WITHOUT_HEAD(largepage_minherit); ATF_TC_BODY(largepage_minherit, tc) { char *addr; size_t ps[MAXPAGESIZES]; pid_t child; int fd, pscnt, status; pscnt = pagesizes(ps); for (int i = 1; i < pscnt; i++) { fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]); addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; error=%d", ps[i], errno); ATF_REQUIRE(minherit(addr, ps[0], INHERIT_SHARE) != 0); ATF_REQUIRE_MSG(minherit(addr, ps[i], INHERIT_SHARE) == 0, "minherit(%zu bytes) failed; error=%d", ps[i], errno); child = fork(); ATF_REQUIRE_MSG(child != -1, "fork failed; error=%d", errno); if (child == 0) { char v; *(volatile char *)addr = 0; if (mincore(addr, ps[0], &v) != 0) _exit(1); if ((v & MINCORE_PSIND(i)) == 0) _exit(2); _exit(0); } ATF_REQUIRE_MSG(waitpid(child, &status, 0) == child, "waitpid failed; error=%d", errno); ATF_REQUIRE_MSG(WIFEXITED(status), "child was killed by signal %d", WTERMSIG(status)); ATF_REQUIRE_MSG(WEXITSTATUS(status) == 0, "child exited with status %d", WEXITSTATUS(status)); ATF_REQUIRE_MSG(minherit(addr, ps[i], INHERIT_NONE) == 0, "minherit(%zu bytes) failed; error=%d", ps[i], errno); child = fork(); ATF_REQUIRE_MSG(child != -1, "fork failed; error=%d", errno); if (child == 0) { char v; if (mincore(addr, ps[0], &v) == 0) _exit(1); _exit(0); } ATF_REQUIRE_MSG(waitpid(child, &status, 0) == child, "waitpid failed; error=%d", errno); ATF_REQUIRE_MSG(WIFEXITED(status), "child was killed by signal %d", WTERMSIG(status)); ATF_REQUIRE_MSG(WEXITSTATUS(status) == 0, "child exited with status %d", WEXITSTATUS(status)); /* Copy-on-write is not supported for static large pages. */ ATF_REQUIRE_MSG(minherit(addr, ps[i], INHERIT_COPY) != 0, "minherit(%zu bytes) succeeded", ps[i]); ATF_REQUIRE_MSG(minherit(addr, ps[i], INHERIT_ZERO) == 0, "minherit(%zu bytes) failed; error=%d", ps[i], errno); child = fork(); ATF_REQUIRE_MSG(child != -1, "fork failed; error=%d", errno); if (child == 0) { char v; *(volatile char *)addr = 0; if (mincore(addr, ps[0], &v) != 0) _exit(1); if ((v & MINCORE_SUPER) != 0) _exit(2); _exit(0); } ATF_REQUIRE_MSG(waitpid(child, &status, 0) == child, "waitpid failed; error=%d", errno); ATF_REQUIRE_MSG(WIFEXITED(status), "child was killed by signal %d", WTERMSIG(status)); ATF_REQUIRE_MSG(WEXITSTATUS(status) == 0, "child exited with status %d", WEXITSTATUS(status)); ATF_REQUIRE(munmap(addr, ps[i]) == 0); ATF_REQUIRE(close(fd) == 0); } } ATF_TC_WITHOUT_HEAD(largepage_pipe); ATF_TC_BODY(largepage_pipe, tc) { size_t ps[MAXPAGESIZES]; char *addr; ssize_t len; int fd, pfd[2], pscnt, status; pid_t child; pscnt = pagesizes(ps); for (int i = 1; i < pscnt; i++) { fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]); addr = mmap(NULL, ps[i], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap(%zu bytes) failed; error=%d", ps[i], errno); /* Trigger creation of a mapping. */ *(volatile char *)addr = '\0'; ATF_REQUIRE(pipe(pfd) == 0); child = fork(); ATF_REQUIRE_MSG(child != -1, "fork() failed; error=%d", errno); if (child == 0) { char buf[BUFSIZ]; ssize_t resid; (void)close(pfd[0]); for (resid = (size_t)ps[i]; resid > 0; resid -= len) { len = read(pfd[1], buf, sizeof(buf)); if (len < 0) _exit(1); } _exit(0); } ATF_REQUIRE(close(pfd[1]) == 0); len = write(pfd[0], addr, ps[i]); ATF_REQUIRE_MSG(len >= 0, "write() failed; error=%d", errno); ATF_REQUIRE_MSG(len == (ssize_t)ps[i], "short write; len=%zd", len); ATF_REQUIRE(close(pfd[0]) == 0); ATF_REQUIRE_MSG(waitpid(child, &status, 0) == child, "waitpid() failed; error=%d", errno); ATF_REQUIRE_MSG(WIFEXITED(status), "child was killed by signal %d", WTERMSIG(status)); ATF_REQUIRE_MSG(WEXITSTATUS(status) == 0, "child exited with status %d", WEXITSTATUS(status)); ATF_REQUIRE(munmap(addr, ps[i]) == 0); ATF_REQUIRE(close(fd) == 0); } } ATF_TC_WITHOUT_HEAD(largepage_reopen); ATF_TC_BODY(largepage_reopen, tc) { char *addr, *vec; size_t ps[MAXPAGESIZES]; int fd, psind; (void)pagesizes(ps); psind = 1; gen_test_path(); fd = shm_create_largepage(test_path, O_CREAT | O_RDWR, psind, SHM_LARGEPAGE_ALLOC_DEFAULT, 0600); if (fd < 0 && errno == ENOTTY) atf_tc_skip("no large page support"); ATF_REQUIRE_MSG(fd >= 0, "shm_create_largepage failed; error=%d", errno); ATF_REQUIRE_MSG(ftruncate(fd, ps[psind]) == 0, "ftruncate failed; error=%d", errno); ATF_REQUIRE_MSG(close(fd) == 0, "close failed; error=%d", errno); fd = shm_open(test_path, O_RDWR, 0); ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; error=%d", errno); addr = mmap(NULL, ps[psind], PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap failed; error=%d", errno); /* Trigger a fault and mapping creation. */ *(volatile char *)addr = 0; vec = malloc(ps[psind] / ps[0]); ATF_REQUIRE(vec != NULL); ATF_REQUIRE_MSG(mincore(addr, ps[psind], vec) == 0, "mincore failed; error=%d", errno); ATF_REQUIRE_MSG((vec[0] & MINCORE_PSIND(psind)) != 0, "page not mapped into a %zu-byte superpage", ps[psind]); ATF_REQUIRE_MSG(shm_unlink(test_path) == 0, "shm_unlink failed; errno=%d", errno); ATF_REQUIRE_MSG(close(fd) == 0, "close failed; errno=%d", errno); } ATF_TP_ADD_TCS(tp) { ATF_TP_ADD_TC(tp, remap_object); ATF_TP_ADD_TC(tp, rename_from_anon); ATF_TP_ADD_TC(tp, rename_bad_path_pointer); ATF_TP_ADD_TC(tp, rename_from_nonexisting); ATF_TP_ADD_TC(tp, rename_to_anon); ATF_TP_ADD_TC(tp, rename_to_replace); ATF_TP_ADD_TC(tp, rename_to_noreplace); ATF_TP_ADD_TC(tp, rename_to_exchange); ATF_TP_ADD_TC(tp, rename_to_exchange_nonexisting); ATF_TP_ADD_TC(tp, rename_to_self); ATF_TP_ADD_TC(tp, rename_bad_flag); ATF_TP_ADD_TC(tp, reopen_object); ATF_TP_ADD_TC(tp, readonly_mmap_write); ATF_TP_ADD_TC(tp, open_after_link); ATF_TP_ADD_TC(tp, open_invalid_path); ATF_TP_ADD_TC(tp, open_write_only); ATF_TP_ADD_TC(tp, open_extra_flags); ATF_TP_ADD_TC(tp, open_anon); ATF_TP_ADD_TC(tp, open_anon_readonly); ATF_TP_ADD_TC(tp, open_bad_path_pointer); ATF_TP_ADD_TC(tp, open_path_too_long); ATF_TP_ADD_TC(tp, open_nonexisting_object); ATF_TP_ADD_TC(tp, open_create_existing_object); ATF_TP_ADD_TC(tp, shm_functionality_across_fork); ATF_TP_ADD_TC(tp, trunc_resets_object); ATF_TP_ADD_TC(tp, unlink_bad_path_pointer); ATF_TP_ADD_TC(tp, unlink_path_too_long); ATF_TP_ADD_TC(tp, object_resize); ATF_TP_ADD_TC(tp, cloexec); ATF_TP_ADD_TC(tp, mode); ATF_TP_ADD_TC(tp, fallocate); ATF_TP_ADD_TC(tp, fspacectl); + ATF_TP_ADD_TC(tp, accounting); ATF_TP_ADD_TC(tp, largepage_basic); ATF_TP_ADD_TC(tp, largepage_config); ATF_TP_ADD_TC(tp, largepage_mmap); ATF_TP_ADD_TC(tp, largepage_munmap); ATF_TP_ADD_TC(tp, largepage_madvise); ATF_TP_ADD_TC(tp, largepage_mlock); ATF_TP_ADD_TC(tp, largepage_msync); ATF_TP_ADD_TC(tp, largepage_mprotect); ATF_TP_ADD_TC(tp, largepage_minherit); ATF_TP_ADD_TC(tp, largepage_pipe); ATF_TP_ADD_TC(tp, largepage_reopen); return (atf_no_error()); }