1 /* 2 * Copyright (c) 2016 Fujitsu Ltd. 3 * Author: Jinbao Huang <huangjb.jy@cn.fujitsu.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of version 2 of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 12 * 13 * You should have received a copy of the GNU General Public License 14 * alone with this program. 15 */ 16 17 /* 18 * Test Name: lgetxattr01 19 * 20 * Description: 21 * The testcase checks the basic functionality of the lgetxattr(2). 22 * In the case of a symbolic link, we only get the value of the 23 * extended attribute related to the link itself by name. 24 * 25 */ 26 27 #include "config.h" 28 #include <errno.h> 29 #include <sys/types.h> 30 #include <string.h> 31 32 #ifdef HAVE_SYS_XATTR_H 33 # include <sys/xattr.h> 34 #endif 35 36 #include "tst_test.h" 37 38 #ifdef HAVE_SYS_XATTR_H 39 40 #define SECURITY_KEY1 "security.ltptest1" 41 #define SECURITY_KEY2 "security.ltptest2" 42 #define VALUE1 "test1" 43 #define VALUE2 "test2" 44 45 static void set_xattr(char *path, char *key, void *value, size_t size) 46 { 47 int res; 48 49 res = lsetxattr(path, key, value, size, XATTR_CREATE); 50 if (res == -1) { 51 if (errno == ENOTSUP) { 52 tst_brk(TCONF, 53 "no xattr support in fs or mounted " 54 "without user_xattr option"); 55 } else { 56 tst_brk(TBROK | TERRNO, "lsetxattr(%s) failed", key); 57 } 58 } 59 } 60 61 static void setup(void) 62 { 63 SAFE_TOUCH("testfile", 0644, NULL); 64 SAFE_SYMLINK("testfile", "symlink"); 65 66 set_xattr("testfile", SECURITY_KEY1, VALUE1, strlen(VALUE1)); 67 set_xattr("symlink", SECURITY_KEY2, VALUE2, strlen(VALUE2)); 68 } 69 70 static void verify_lgetxattr(void) 71 { 72 int size = 64; 73 char buf[size]; 74 75 TEST(lgetxattr("symlink", SECURITY_KEY2, buf, size)); 76 if (TEST_RETURN == -1) { 77 tst_res(TFAIL | TTERRNO, "lgetxattr() failed"); 78 goto next; 79 } 80 81 if (TEST_RETURN != strlen(VALUE2)) { 82 tst_res(TFAIL, "lgetxattr() got unexpected value size"); 83 goto next; 84 } 85 86 if (!strncmp(buf, VALUE2, TEST_RETURN)) 87 tst_res(TPASS, "lgetxattr() got expected value"); 88 else 89 tst_res(TFAIL, "lgetxattr() got unexpected value"); 90 91 next: 92 TEST(lgetxattr("symlink", SECURITY_KEY1, buf, size)); 93 94 if (TEST_RETURN != -1) { 95 tst_res(TFAIL, "lgetxattr() succeeded unexpectedly"); 96 return; 97 } 98 99 if (TEST_ERRNO == ENODATA) { 100 tst_res(TPASS | TTERRNO, "lgetxattr() failed as expected"); 101 } else { 102 tst_res(TFAIL | TTERRNO, "lgetxattr() failed unexpectedly," 103 "expected %s", tst_strerrno(ENODATA)); 104 } 105 } 106 107 static struct tst_test test = { 108 .needs_tmpdir = 1, 109 .needs_root = 1, 110 .test_all = verify_lgetxattr, 111 .setup = setup 112 }; 113 114 #else 115 TST_TEST_TCONF("<sys/xattr.h> does not exist."); 116 #endif /* HAVE_SYS_XATTR_H */ 117