/* * Copyright (C) 2011 Red Hat, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * Further, this software is distributed without any warranty that it * is free of the rightful claim of any third person regarding * infringement or the like. Any license provided herein, whether * implied or otherwise, applies only to this software file. Patent * licenses, if any, provided herein do not apply to combinations of * this program with other software, or any other product whatsoever. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA. */ /* * Basic tests for setxattr(2) and make sure setxattr(2) handles error * conditions correctly. * * There are 7 test cases: * 1. Any other flags being set except XATTR_CREATE and XATTR_REPLACE, * setxattr(2) should return -1 and set errno to EINVAL * 2. With XATTR_REPLACE flag set but the attribute does not exist, * setxattr(2) should return -1 and set errno to ENODATA * 3. Create new attr with name length greater than XATTR_NAME_MAX(255) * setxattr(2) should return -1 and set errno to ERANGE * 4. Create new attr whose value length is greater than XATTR_SIZE_MAX(65536) * setxattr(2) should return -1 and set errno to E2BIG * 5. Create new attr whose value length is zero, * setxattr(2) should succeed * 6. Replace the attr value without XATTR_REPLACE flag being set, * setxattr(2) should return -1 and set errno to EEXIST * 7. Replace attr value with XATTR_REPLACE flag being set, * setxattr(2) should succeed * 8. Create new attr whose key length is zero, * setxattr(2) should return -1 and set errno to ERANGE * 9. Create new attr whose key is NULL, * setxattr(2) should return -1 and set errno to EFAULT */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_SYS_XATTR_H # include #endif #include "tst_test.h" #ifdef HAVE_SYS_XATTR_H #define XATTR_NAME_MAX 255 #define XATTR_NAME_LEN (XATTR_NAME_MAX + 2) #define XATTR_SIZE_MAX 65536 #define XATTR_TEST_KEY "user.testkey" #define XATTR_TEST_VALUE "this is a test value" #define XATTR_TEST_VALUE_SIZE 20 #define MNTPOINT "mntpoint" #define FNAME MNTPOINT"/setxattr01testfile" static char long_key[XATTR_NAME_LEN]; static char *long_value; static char *xattr_value = XATTR_TEST_VALUE; struct test_case { char *key; char **value; size_t size; int flags; int exp_err; int keyneeded; }; struct test_case tc[] = { { /* case 00, invalid flags */ .key = XATTR_TEST_KEY, .value = &xattr_value, .size = XATTR_TEST_VALUE_SIZE, .flags = ~0, .exp_err = EINVAL, }, { /* case 01, replace non-existing attribute */ .key = XATTR_TEST_KEY, .value = &xattr_value, .size = XATTR_TEST_VALUE_SIZE, .flags = XATTR_REPLACE, .exp_err = ENODATA, }, { /* case 02, long key name */ .key = long_key, .value = &xattr_value, .size = XATTR_TEST_VALUE_SIZE, .flags = XATTR_CREATE, .exp_err = ERANGE, }, { /* case 03, long value */ .key = XATTR_TEST_KEY, .value = &long_value, .size = XATTR_SIZE_MAX + 1, .flags = XATTR_CREATE, .exp_err = E2BIG, }, { /* case 04, zero length value */ .key = XATTR_TEST_KEY, .value = &xattr_value, .size = 0, .flags = XATTR_CREATE, .exp_err = 0, }, { /* case 05, create existing attribute */ .key = XATTR_TEST_KEY, .value = &xattr_value, .size = XATTR_TEST_VALUE_SIZE, .flags = XATTR_CREATE, .exp_err = EEXIST, .keyneeded = 1, }, { /* case 06, replace existing attribute */ .key = XATTR_TEST_KEY, .value = &xattr_value, .size = XATTR_TEST_VALUE_SIZE, .flags = XATTR_REPLACE, .exp_err = 0, .keyneeded = 1, }, { /* case 07, zero length key */ .key = "", .value = &xattr_value, .size = XATTR_TEST_VALUE_SIZE, .flags = XATTR_CREATE, .exp_err = ERANGE, }, { /* case 08, NULL key */ .value = &xattr_value, .size = XATTR_TEST_VALUE_SIZE, .flags = XATTR_CREATE, .exp_err = EFAULT, }, }; static void verify_setxattr(unsigned int i) { /* some tests might require existing keys for each iteration */ if (tc[i].keyneeded) { SAFE_SETXATTR(FNAME, tc[i].key, tc[i].value, tc[i].size, XATTR_CREATE); } TEST(setxattr(FNAME, tc[i].key, *tc[i].value, tc[i].size, tc[i].flags)); if (TST_RET == -1 && TST_ERR == EOPNOTSUPP) tst_brk(TCONF, "setxattr(2) not supported"); /* success */ if (!tc[i].exp_err) { if (TST_RET) { tst_res(TFAIL | TTERRNO, "setxattr(2) failed with %li", TST_RET); return; } /* this is needed for subsequent iterations */ SAFE_REMOVEXATTR(FNAME, tc[i].key); tst_res(TPASS, "setxattr(2) passed"); return; } if (TST_RET == 0) { tst_res(TFAIL, "setxattr(2) passed unexpectedly"); return; } /* error */ if (tc[i].exp_err != TST_ERR) { tst_res(TFAIL | TTERRNO, "setxattr(2) should fail with %s", tst_strerrno(tc[i].exp_err)); return; } /* key might have been added AND test might have failed, remove it */ if (tc[i].keyneeded) SAFE_REMOVEXATTR(FNAME, tc[i].key); tst_res(TPASS | TTERRNO, "setxattr(2) failed"); } static void setup(void) { size_t i = 0; snprintf(long_key, 6, "%s", "user."); memset(long_key + 5, 'k', XATTR_NAME_LEN - 5); long_key[XATTR_NAME_LEN - 1] = '\0'; long_value = SAFE_MALLOC(XATTR_SIZE_MAX + 2); memset(long_value, 'v', XATTR_SIZE_MAX + 2); long_value[XATTR_SIZE_MAX + 1] = '\0'; SAFE_TOUCH(FNAME, 0644, NULL); for (i = 0; i < ARRAY_SIZE(tc); i++) { if (!tc[i].key) tc[i].key = tst_get_bad_addr(NULL); } } static struct tst_test test = { .setup = setup, .test = verify_setxattr, .tcnt = ARRAY_SIZE(tc), .mntpoint = MNTPOINT, .mount_device = 1, .all_filesystems = 1, .needs_tmpdir = 1, .needs_root = 1, }; #else /* HAVE_SYS_XATTR_H */ TST_TEST_TCONF(" does not exist"); #endif