From 03ae4bec9770a810ad1363b1949b8aff98142fe6 Mon Sep 17 00:00:00 2001 From: rwatson Date: Sat, 10 Sep 2005 21:09:26 +0000 Subject: Add fifo_create, a simple regression test for mkfifo(2). --- tools/regression/fifo/fifo_create/Makefile | 7 + tools/regression/fifo/fifo_create/fifo_create.c | 237 ++++++++++++++++++++++++ 2 files changed, 244 insertions(+) create mode 100644 tools/regression/fifo/fifo_create/Makefile create mode 100644 tools/regression/fifo/fifo_create/fifo_create.c (limited to 'tools/regression/fifo') diff --git a/tools/regression/fifo/fifo_create/Makefile b/tools/regression/fifo/fifo_create/Makefile new file mode 100644 index 0000000..4390257 --- /dev/null +++ b/tools/regression/fifo/fifo_create/Makefile @@ -0,0 +1,7 @@ +# $FreeBSD$ + +PROG= fifo_create +NO_MAN= +WARNS= 3 + +.include diff --git a/tools/regression/fifo/fifo_create/fifo_create.c b/tools/regression/fifo/fifo_create/fifo_create.c new file mode 100644 index 0000000..691360e --- /dev/null +++ b/tools/regression/fifo/fifo_create/fifo_create.c @@ -0,0 +1,237 @@ +/*- + * Copyright (c) 2005 Robert N. M. Watson + * All rights reserved. + * + * 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. + * + * $FreeBSD$ + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +/* + * Simple regression test for the creation and destruction of POSIX fifos in + * the file system name space. Using a specially created directory, create + * a fifo in it and check that the following properties are present, as + * specified in IEEE Std 1003.1, 2004 Edition: + * + * - When mkfifo() is called, on success, a fifo is created. + * + * - On an error, no fifo is created. (XXX: Not tested) + * + * - The mode bits on the fifo are a product of combining the umask and + * requested mode. + * + * - The fifo's owner will be the processes effective user ID. (XXX: Not + * tested) + * + * - The fifo's group will be the parent directory's group or the effective + * group ID of the process. For historical reasons, BSD prefers the group + * ID of the process, so we will generate an error if it's not that. (XXX: + * Not tested) + * + * - The st_atime, st_ctime, st_mtime of the fifo will be set appropriately, + * and st_ctime and st_mtime on the directory will be updated. (XXX: We + * test they are updated, not correct) + * + * - EEXIST is returned if the named file already exists. + * + * In addition, we check that we can unlink the fifo, and that if we do, it + * disappears. + * + * This test must run as root in order to usefully frob the process + * credential to test permission parts. + */ + +/* + * All activity occurs within a temporary directory created early in the + * test. + */ +char temp_dir[PATH_MAX]; + +static void __unused +atexit_temp_dir(void) +{ + + rmdir(temp_dir); +} + +/* + * Basic creation tests: verify that mkfifo() creates a fifo, that the time + * stamps on the directory are updated, that if we try twice we get EEXIST, + * and that we can unlink it. + */ +static void +fifo_create_test(void) +{ + struct stat old_dirsb, dirsb, fifosb; + char path[PATH_MAX]; + int error; + + /* + * Sleep to make sure that the time stamp on the directory will be + * updated. + */ + sleep(2); + + if (stat(temp_dir, &old_dirsb) < 0) + err(-1, "basic_create_test: stat: %s", temp_dir); + + snprintf(path, PATH_MAX, "%s/testfifo", temp_dir); + + if (mkfifo(path, 0600) < 0) + err(-1, "basic_create_test: mkfifo: %s", path); + + if (stat(path, &fifosb) < 0) { + error = errno; + (void)unlink(path); + errno = error; + err(-1, "basic_create_test: stat: %s", path); + } + + if (!(S_ISFIFO(fifosb.st_mode))) { + (void)unlink(path); + errx(-1, "basic_create_test: mkfifo produced non-fifo"); + } + + if (mkfifo(path, 0600) == 0) + errx(-1, "basic_create_test: dup mkfifo succeeded"); + + if (errno != EEXIST) + err(-1, "basic_create_test: dup mkfifo unexpected error"); + + if (stat(temp_dir, &dirsb) < 0) { + error = errno; + (void)unlink(path); + errno = error; + err(-1, "basic_create_test: stat: %s", temp_dir); + } + + if (old_dirsb.st_ctime == dirsb.st_ctime) { + (void)unlink(path); + errx(-1, "basic_create_test: old_dirsb.st_ctime == " + "dirsb.st_ctime"); + } + + if (old_dirsb.st_mtime == dirsb.st_mtime) { + (void)unlink(path); + errx(-1, "basic_create_test: old_dirsb.st_mtime == " + "dirsb.st_mtime"); + } + + if (unlink(path) < 0) + err(-1, "basic_create_test: unlink: %s", path); + + if (stat(path, &fifosb) == 0) + errx(-1, "basic_create_test: unlink failed to unlink"); + if (errno != ENOENT) + err(-1, "basic_create_test: unlink unexpected error"); +} + +/* + * Having determined that basic create/remove/etc functionality is present + * for fifos, now make sure that the umask, requested permissions, and + * resulting mode are handled properly. + */ +static const struct permission_test { + mode_t pt_umask; + mode_t pt_reqmode; + mode_t pt_mode; +} permission_test[] = { + {0000, 0, S_IFIFO}, + {0000, S_IRWXU, S_IFIFO | S_IRWXU}, + {0000, S_IRWXU | S_IRWXG | S_IRWXO, S_IFIFO | S_IRWXU | S_IRWXG | + S_IRWXO }, + {0077, S_IRWXU, S_IFIFO | S_IRWXU}, + {0077, S_IRWXU | S_IRWXG | S_IRWXO, S_IFIFO | S_IRWXU}, +}; +static const int permission_test_count = sizeof(permission_test) / + sizeof(struct permission_test); + +static void +fifo_permission_test(void) +{ + const struct permission_test *ptp; + mode_t __unused old_umask; + char path[PATH_MAX]; + struct stat sb; + int error, i; + + snprintf(path, PATH_MAX, "%s/testfifo", temp_dir); + old_umask = umask(0022); + for (i = 0; i < permission_test_count; i++) { + ptp = &permission_test[i]; + + umask(ptp->pt_umask); + if (mkfifo(path, ptp->pt_reqmode) < 0) + err(-1, "fifo_permission_test: %08o %08o %08o\n", + ptp->pt_umask, ptp->pt_reqmode, ptp->pt_mode); + + if (stat(path, &sb) < 0) { + error = errno; + (void)unlink(path); + errno = error; + err(-1, "fifo_permission_test: %s", path); + } + + if (sb.st_mode != ptp->pt_mode) { + (void)unlink(path); + errx(-1, "fifo_permission_test: %08o %08o %08o " + "got %08o", ptp->pt_umask, ptp->pt_reqmode, + ptp->pt_mode, sb.st_mode); + } + + if (unlink(path) < 0) + err(-1, "fifo_permission_test: unlink: %s", path); + } + umask(old_umask); +} + +int +main(int argc, char *argv[]) +{ + + if (geteuid() != 0) + errx(-1, "must be run as root"); + + strcpy(temp_dir, "/tmp/fifo_create.XXXXXXXXXXX"); + if (mkdtemp(temp_dir) == NULL) + err(-1, "mkdtemp"); + atexit(atexit_temp_dir); + + if (chdir(temp_dir) < 0) + err(-1, "chdir"); + + fifo_create_test(); + + fifo_permission_test(); + + return (0); +} -- cgit v1.1