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/*
Copyright (c) 2007-2009 Z RESEARCH, Inc. <http://www.zresearch.com>
This file is part of GlusterFS.
GlusterFS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
GlusterFS is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
/*
* LD PRELOAD Test Tool
*
* 1. The idea of this test tool is to check the sanity of the LD_PRELOAD
* mechanism in libc for the system on which booster needs to run.
*
* 2. Basically, this test tool calls various system calls for which there is
* support in the booster library. Combined with the logging output from this
* tool and the preload-test-lib, one can determine whether the
* pre-loading mechanism is working working in order for booster to initialize.
*
* 3. This tool does not test GlusterFS functionality running under booster
* although the path specified to the tool can be a GlusterFS mountpoint but
* that is not very useful.
*
* 4. This tool is incomplete without the preload-test-lib and the
* accompanyung shell script that needs to be run for running the test.
*/
#define _XOPEN_SOURCE 500
#include <dlfcn.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <dirent.h>
#include <sys/statfs.h>
#include <sys/statvfs.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/uio.h>
#include <utime.h>
#include <sys/time.h>
#include <attr/xattr.h>
#include <sys/sendfile.h>
#define PRELOAD_ERRNO_VERF 6449
inline void
check_err(int ret, char *call, int tabs)
{
while (tabs > 0) {
fprintf (stdout, "\t");
--tabs;
}
if (ret != -1) {
fprintf (stdout, "Not intercepted: %s\n", call);
return;
}
if (errno != PRELOAD_ERRNO_VERF) {
fprintf (stdout, "Not intercepted: %s: err: %s\n", call,
strerror (errno));
return;
}
fprintf (stdout, "Intercept verified: %s\n", call);
return;
}
void
usage (FILE *fp)
{
fprintf (fp, "Usage: ld-preload-test <Options>\n");
fprintf (fp, "Options\n");
fprintf (fp, "\t--path\t\tPathname is used as the file/directory"
" created for the test.\n");
}
int
run_file_tests (char *testfile)
{
int ret = -1;
struct stat buf;
assert (testfile);
fprintf (stdout, "Testing creat");
ret = creat (testfile, S_IRWXU);
check_err (ret, "creat", 2);
fprintf (stdout, "Testing close");
ret = close (ret);
check_err (ret, "close", 2);
fprintf (stdout, "Testing open");
ret = open (testfile, O_RDONLY);
check_err (ret, "open", 2);
fprintf (stdout, "Testing read");
ret = read (0, NULL, 0);
check_err (ret, "read", 2);
fprintf (stdout, "Testing readv");
ret = readv (0, NULL, 0);
check_err (ret, "readv", 2);
fprintf (stdout, "Testing pread");
ret = pread (0, NULL, 0, 0);
check_err (ret, "pread", 2);
fprintf (stdout, "Testing write");
ret = write (0, NULL, 0);
check_err (ret, "write", 2);
fprintf (stdout, "Testing writev");
ret = writev (0, NULL, 0);
check_err (ret, "writev", 2);
fprintf (stdout, "Testing pwrite");
ret = pwrite (0, NULL, 0, 0);
check_err (ret, "pwrite", 2);
fprintf (stdout, "Testing lseek");
ret = lseek (0, 0, 0);
check_err (ret, "lseek", 2);
fprintf (stdout, "Testing dup");
ret = dup (0);
check_err (ret, "dup", 2);
fprintf (stdout, "Testing dup2");
ret = dup2 (0, 0);
check_err (ret, "dup2", 2);
fprintf (stdout, "Testing fchmod");
ret = fchmod (0, 0);
check_err (ret, "fchmod", 2);
fprintf (stdout, "Testing fchown");
ret = fchown (0, 0, 0);
check_err (ret, "fchown", 2);
fprintf (stdout, "Testing fsync");
ret = fsync (0);
check_err (ret, "fsync", 2);
fprintf (stdout, "Testing ftruncate");
ret = ftruncate (0, 0);
check_err (ret, "ftruncate", 1);
fprintf (stdout, "Testing fstat");
ret = fstat (0, &buf);
check_err (ret, "fstat", 1);
fprintf (stdout, "Testing sendfile");
ret = sendfile (0, 0, NULL, 0);
check_err (ret, "sendfile", 1);
fprintf (stdout, "Testing fcntl");
ret = fcntl (0, 0, NULL);
check_err (ret, "fcntl", 2);
fprintf (stdout, "Testing close");
ret = close (ret);
check_err (ret, "close", 2);
fprintf (stdout, "Testing remove");
ret = remove (testfile);
check_err (ret, "remove", 2);
return ret;
}
int
run_attr_tests (char *testfile)
{
int ret = -1;
char *res = NULL;
struct stat buf;
struct statfs sbuf;
struct statvfs svbuf;
assert (testfile);
fprintf (stdout, "Testing chmod");
ret = chmod (testfile, 0);
check_err (ret, "chmod", 2);
fprintf (stdout, "Testing chown");
ret = chown (testfile, 0, 0);
check_err (ret, "chown", 2);
fprintf (stdout, "Testing link");
ret = link (testfile, testfile);
check_err (ret, "link", 2);
fprintf (stdout, "Testing rename");
ret = rename (testfile, testfile);
check_err (ret, "rename", 2);
fprintf (stdout, "Testing utimes");
ret = utimes (testfile, NULL);
check_err (ret, "utimes", 2);
fprintf (stdout, "Testing utime");
ret = utime (testfile, NULL);
check_err (ret, "utime", 2);
fprintf (stdout, "Testing unlink");
ret = unlink (testfile);
check_err (ret, "unlink", 2);
fprintf (stdout, "Testing symlink");
ret = symlink (testfile, testfile);
check_err (ret, "symlink", 2);
fprintf (stdout, "Testing readlink");
ret = readlink (testfile, testfile, 0);
check_err (ret, "readlink", 2);
fprintf (stdout, "Testing realpath");
ret = 0;
res = realpath ((const char *)testfile, testfile);
if (!res)
ret = -1;
check_err (ret, "realpath", 2);
fprintf (stdout, "Testing stat");
ret = stat (testfile, &buf);
check_err (ret, "stat", 1);
fprintf (stdout, "Testing lstat");
ret = lstat (testfile, &buf);
check_err (ret, "lstat", 1);
fprintf (stdout, "Testing statfs");
ret = statfs (testfile, &sbuf);
check_err (ret, "statfs", 2);
fprintf (stdout, "Testing statvfs");
ret = statvfs (testfile, &svbuf);
check_err (ret, "statvfs", 1);
fprintf (stdout, "Testing getxattr");
ret = getxattr (testfile, NULL, NULL, 0);
check_err (ret, "getxattr", 2);
fprintf (stdout, "Testing lgetxattr");
ret = lgetxattr (testfile, NULL, NULL, 0);
check_err (ret, "lgetxattr", 1);
fprintf (stdout, "Testing lchown");
ret = lchown (testfile, 0, 0);
check_err (ret, "lchown", 2);
return 0;
}
int
run_dev_tests (char *testfile)
{
int ret = -1;
assert (testfile);
fprintf (stdout, "Testing mknod");
ret = mknod (testfile, 0, 0);
check_err (ret, "mknod", 2);
fprintf (stdout, "Testing mkfifo");
ret = mkfifo (testfile, 0);
check_err (ret, "mkfifo", 2);
return 0;
}
int
run_dir_tests (char *testpath)
{
int ret = -1;
DIR *dh = NULL;
struct dirent *dire = NULL;
assert (testpath);
fprintf (stdout, "Testing mkdir");
ret = mkdir (testpath, 0);
check_err (ret, "mkdir", 2);
fprintf (stdout, "Testing rmdir");
ret = rmdir (testpath);
check_err (ret, "rmdir", 2);
fprintf (stdout, "Testing opendir");
ret = 0;
dh = opendir (testpath);
if (!dh)
ret = -1;
check_err (ret, "opendir", 2);
fprintf (stdout, "Testing readdir");
ret = 0;
dire = readdir (dh);
if (!dire)
ret = -1;
check_err (ret, "readdir", 1);
fprintf (stdout, "Testing readdir_r");
ret = readdir_r (dh, dire, &dire);
check_err (ret, "readdir_r", 1);
fprintf (stdout, "Testing rewinddir");
rewinddir (dh);
check_err (-1, "rewinddir", 1);
fprintf (stdout, "Testing seekdir");
seekdir (dh, 0);
check_err (-1, "seekdir", 2);
fprintf (stdout, "Testing telldir");
ret = telldir (dh);
check_err (ret, "telldir", 2);
fprintf (stdout, "Testing closedir");
ret = closedir (dh);
check_err (ret, "closedir", 2);
return 0;
}
int
main (int argc, char *argv[])
{
char *testpath = NULL;
int x = 0;
for (;x < argc; ++x) {
if (strcmp (argv[x], "--path") == 0) {
testpath = argv[x+1];
continue;
}
}
if (!testpath) {
fprintf (stderr, "--path not specified\n");
usage (stderr);
return -1;
}
run_file_tests (testpath);
run_dir_tests (testpath);
run_attr_tests (testpath);
run_dev_tests (testpath);
return 0;
}
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