1 /* 2 * Copyright (C) 2011 Red Hat, Inc. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of version 2 of the GNU General Public 6 * License as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11 * 12 * Further, this software is distributed without any warranty that it 13 * is free of the rightful claim of any third person regarding 14 * infringement or the like. Any license provided herein, whether 15 * implied or otherwise, applies only to this software file. Patent 16 * licenses, if any, provided herein do not apply to combinations of 17 * this program with other software, or any other product whatsoever. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 22 * 02110-1301, USA. 23 */ 24 25 /* 26 * In the user.* namespace, only regular files and directories can 27 * have extended attributes. Otherwise getxattr(2) will return -1 28 * and set errno to ENODATA. 29 * 30 * There are 4 test cases: 31 * 1. Get attribute from a FIFO, setxattr(2) should return -1 and 32 * set errno to ENODATA 33 * 2. Get attribute from a char special file, setxattr(2) should 34 * return -1 and set errno to ENODATA 35 * 3. Get attribute from a block special file, setxattr(2) should 36 * return -1 and set errno to ENODATA 37 * 4. Get attribute from a UNIX domain socket, setxattr(2) should 38 * return -1 and set errno to ENODATA 39 */ 40 41 #include "config.h" 42 #include <sys/types.h> 43 #include <sys/stat.h> 44 #include <sys/sysmacros.h> 45 #include <sys/wait.h> 46 #include <errno.h> 47 #include <fcntl.h> 48 #include <unistd.h> 49 #include <signal.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #ifdef HAVE_SYS_XATTR_H 54 # include <sys/xattr.h> 55 #endif 56 #include "test.h" 57 #include "safe_macros.h" 58 59 char *TCID = "getxattr02"; 60 61 #ifdef HAVE_SYS_XATTR_H 62 #define XATTR_TEST_KEY "user.testkey" 63 64 #define FIFO "getxattr02fifo" 65 #define CHR "getxattr02chr" 66 #define BLK "getxattr02blk" 67 #define SOCK "getxattr02sock" 68 69 static void setup(void); 70 static void cleanup(void); 71 72 static char *tc[] = { 73 FIFO, /* case 00, get attr from fifo */ 74 CHR, /* case 01, get attr from char special */ 75 BLK, /* case 02, get attr from block special */ 76 SOCK, /* case 03, get attr from UNIX domain socket */ 77 }; 78 79 int TST_TOTAL = sizeof(tc) / sizeof(tc[0]); 80 81 int main(int argc, char *argv[]) 82 { 83 int lc; 84 int i; 85 int exp_eno; 86 char buf[BUFSIZ]; 87 88 tst_parse_opts(argc, argv, NULL, NULL); 89 90 setup(); 91 92 for (lc = 0; TEST_LOOPING(lc); lc++) { 93 tst_count = 0; 94 95 /* 96 * Before kernel 3.0.0, getxattr(2) will set errno with 'EPERM' 97 * when the file is not a regular file and directory, refer to 98 * commitid 55b23bd 99 */ 100 if (tst_kvercmp(3, 0, 0) >= 0) 101 exp_eno = ENODATA; 102 else 103 exp_eno = EPERM; 104 105 for (i = 0; i < TST_TOTAL; i++) { 106 TEST(getxattr(tc[0], XATTR_TEST_KEY, buf, BUFSIZ)); 107 108 if (TEST_RETURN == -1 && TEST_ERRNO == exp_eno) 109 tst_resm(TPASS | TTERRNO, "expected behavior"); 110 else 111 tst_resm(TFAIL | TTERRNO, "unexpected behavior" 112 " - expected errno %d - Got", exp_eno); 113 } 114 } 115 116 cleanup(); 117 tst_exit(); 118 } 119 120 static void setup(void) 121 { 122 int fd; 123 dev_t dev; 124 125 tst_require_root(); 126 127 tst_tmpdir(); 128 129 /* Test for xattr support */ 130 fd = SAFE_CREAT(cleanup, "testfile", 0644); 131 close(fd); 132 if (setxattr("testfile", "user.test", "test", 4, XATTR_CREATE) == -1) 133 if (errno == ENOTSUP) 134 tst_brkm(TCONF, cleanup, "No xattr support in fs or " 135 "mount without user_xattr option"); 136 unlink("testfile"); 137 138 /* Create test files */ 139 if (mknod(FIFO, S_IFIFO | 0777, 0) == -1) 140 tst_brkm(TBROK | TERRNO, cleanup, "Create FIFO(%s) failed", 141 FIFO); 142 143 dev = makedev(1, 3); 144 if (mknod(CHR, S_IFCHR | 0777, dev) == -1) 145 tst_brkm(TBROK | TERRNO, cleanup, "Create char special(%s)" 146 " failed", CHR); 147 148 if (mknod(BLK, S_IFBLK | 0777, 0) == -1) 149 tst_brkm(TBROK | TERRNO, cleanup, "Create block special(%s)" 150 " failed", BLK); 151 152 if (mknod(SOCK, S_IFSOCK | 0777, 0) == -1) 153 tst_brkm(TBROK | TERRNO, cleanup, "Create socket(%s) failed", 154 SOCK); 155 156 TEST_PAUSE; 157 } 158 159 static void cleanup(void) 160 { 161 tst_rmdir(); 162 } 163 #else /* HAVE_SYS_XATTR_H */ 164 int main(int argc, char *argv[]) 165 { 166 tst_brkm(TCONF, NULL, "<sys/xattr.h> does not exist."); 167 } 168 #endif 169