t_o_search.c revision 1.2
1 /* $NetBSD: t_o_search.c,v 1.2 2012/11/23 08:24:20 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Emmanuel Dreyfus. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __RCSID("$NetBSD: t_o_search.c,v 1.2 2012/11/23 08:24:20 martin Exp $"); 33 34 #include <atf-c.h> 35 #include <errno.h> 36 #include <fcntl.h> 37 #include <limits.h> 38 #include <paths.h> 39 #include <stdio.h> 40 #include <string.h> 41 #include <unistd.h> 42 #include <pwd.h> 43 #include <sys/param.h> 44 45 #define DIR "dir" 46 #define FILE "dir/o_search" 47 #define BASEFILE "o_search" 48 49 ATF_TC_WITH_CLEANUP(o_search_perm1); 50 ATF_TC_HEAD(o_search_perm1, tc) 51 { 52 atf_tc_set_md_var(tc, "descr", "See that openat enforce search permission"); 53 atf_tc_set_md_var(tc, "require.user", "unprivileged"); 54 } 55 56 ATF_TC_BODY(o_search_perm1, tc) 57 { 58 int dfd; 59 int fd; 60 61 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 62 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 63 ATF_REQUIRE(close(fd) == 0); 64 65 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 66 67 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDWR, 0)) != -1); 68 ATF_REQUIRE(close(fd) == 0); 69 70 ATF_REQUIRE(fchmod(dfd, 644) == 0); 71 72 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDWR, 0)) == -1); 73 ATF_REQUIRE(errno == EACCES); 74 75 ATF_REQUIRE(close(dfd) == 0); 76 } 77 78 ATF_TC_CLEANUP(o_search_perm1, tc) 79 { 80 (void)unlink(FILE); 81 (void)rmdir(DIR); 82 } 83 84 ATF_TC_WITH_CLEANUP(o_search_root_flag1); 85 ATF_TC_HEAD(o_search_root_flag1, tc) 86 { 87 atf_tc_set_md_var(tc, "descr", "See that openat honours O_SEARCH"); 88 atf_tc_set_md_var(tc, "require.user", "root"); 89 } 90 91 ATF_TC_BODY(o_search_root_flag1, tc) 92 { 93 int dfd; 94 int fd; 95 96 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 97 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 98 ATF_REQUIRE(close(fd) == 0); 99 100 ATF_REQUIRE((dfd = open(DIR, O_RDONLY|O_SEARCH, 0)) != -1); 101 102 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDWR, 0)) != -1); 103 ATF_REQUIRE(close(fd) == 0); 104 105 ATF_REQUIRE(fchmod(dfd, 644) == 0); 106 107 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDWR, 0)) != -1); 108 ATF_REQUIRE(close(fd) == 0); 109 110 ATF_REQUIRE(fchmod(dfd, 444) == 0); 111 112 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDWR, 0)) != -1); 113 114 ATF_REQUIRE(close(dfd) == 0); 115 } 116 117 ATF_TC_CLEANUP(o_search_root_flag1, tc) 118 { 119 (void)unlink(FILE); 120 (void)rmdir(DIR); 121 } 122 123 ATF_TC_WITH_CLEANUP(o_search_unpriv_flag1); 124 ATF_TC_HEAD(o_search_unpriv_flag1, tc) 125 { 126 atf_tc_set_md_var(tc, "descr", "See that openat honours O_SEARCH"); 127 atf_tc_set_md_var(tc, "require.user", "unprivileged"); 128 } 129 130 ATF_TC_BODY(o_search_unpriv_flag1, tc) 131 { 132 int dfd; 133 int fd; 134 135 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 136 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 137 ATF_REQUIRE(close(fd) == 0); 138 139 ATF_REQUIRE((dfd = open(DIR, O_RDONLY|O_SEARCH, 0)) != -1); 140 141 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDWR, 0)) != -1); 142 ATF_REQUIRE(close(fd) == 0); 143 144 ATF_REQUIRE(fchmod(dfd, 744) == 0); 145 146 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDWR, 0)) != -1); 147 ATF_REQUIRE(close(fd) == 0); 148 149 ATF_REQUIRE(fchmod(dfd, 444) == 0); 150 151 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDWR, 0)) == -1); 152 153 ATF_REQUIRE(close(dfd) == 0); 154 } 155 156 ATF_TC_CLEANUP(o_search_unpriv_flag1, tc) 157 { 158 (void)unlink(FILE); 159 (void)rmdir(DIR); 160 } 161 162 ATF_TC_WITH_CLEANUP(o_search_perm2); 163 ATF_TC_HEAD(o_search_perm2, tc) 164 { 165 atf_tc_set_md_var(tc, "descr", "See that fstatat enforce search permission"); 166 atf_tc_set_md_var(tc, "require.user", "unprivileged"); 167 } 168 169 ATF_TC_BODY(o_search_perm2, tc) 170 { 171 int dfd; 172 int fd; 173 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 174 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 175 ATF_REQUIRE(close(fd) == 0); 176 177 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 178 179 ATF_REQUIRE(faccessat(dfd, BASEFILE, W_OK, 0) == 0); 180 181 ATF_REQUIRE(fchmod(dfd, 644) == 0); 182 183 ATF_REQUIRE(faccessat(dfd, BASEFILE, W_OK, 0) == -1); 184 ATF_REQUIRE(errno == EACCES); 185 186 ATF_REQUIRE(close(dfd) == 0); 187 } 188 189 ATF_TC_CLEANUP(o_search_perm2, tc) 190 { 191 (void)unlink(FILE); 192 (void)rmdir(DIR); 193 } 194 195 ATF_TC_WITH_CLEANUP(o_search_root_flag2); 196 ATF_TC_HEAD(o_search_root_flag2, tc) 197 { 198 atf_tc_set_md_var(tc, "descr", "See that fstatat honours O_SEARCH"); 199 atf_tc_set_md_var(tc, "require.user", "root"); 200 } 201 202 ATF_TC_BODY(o_search_root_flag2, tc) 203 { 204 int dfd; 205 int fd; 206 207 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 208 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 209 ATF_REQUIRE(close(fd) == 0); 210 211 ATF_REQUIRE((dfd = open(DIR, O_RDONLY|O_SEARCH, 0)) != -1); 212 213 ATF_REQUIRE(faccessat(dfd, BASEFILE, W_OK, 0) == 0); 214 215 ATF_REQUIRE(fchmod(dfd, 644) == 0); 216 217 ATF_REQUIRE(faccessat(dfd, BASEFILE, W_OK, 0) == 0); 218 219 ATF_REQUIRE(fchmod(dfd, 444) == 0); 220 221 ATF_REQUIRE(faccessat(dfd, BASEFILE, W_OK, 0) == 0); 222 223 ATF_REQUIRE(close(dfd) == 0); 224 } 225 226 ATF_TC_CLEANUP(o_search_root_flag2, tc) 227 { 228 (void)unlink(FILE); 229 (void)rmdir(DIR); 230 } 231 232 ATF_TC_WITH_CLEANUP(o_search_unpriv_flag2); 233 ATF_TC_HEAD(o_search_unpriv_flag2, tc) 234 { 235 atf_tc_set_md_var(tc, "descr", "See that fstatat honours O_SEARCH"); 236 atf_tc_set_md_var(tc, "require.user", "unprivileged"); 237 } 238 239 ATF_TC_BODY(o_search_unpriv_flag2, tc) 240 { 241 int dfd; 242 int fd; 243 244 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 245 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 246 ATF_REQUIRE(close(fd) == 0); 247 248 ATF_REQUIRE((dfd = open(DIR, O_RDONLY|O_SEARCH, 0)) != -1); 249 250 ATF_REQUIRE(faccessat(dfd, BASEFILE, W_OK, 0) == 0); 251 252 ATF_REQUIRE(fchmod(dfd, 744) == 0); 253 254 ATF_REQUIRE(faccessat(dfd, BASEFILE, W_OK, 0) == 0); 255 256 ATF_REQUIRE(fchmod(dfd, 444) == 0); 257 258 ATF_REQUIRE(faccessat(dfd, BASEFILE, W_OK, 0) == 0); 259 260 ATF_REQUIRE(close(dfd) == 0); 261 } 262 263 ATF_TC_CLEANUP(o_search_unpriv_flag2, tc) 264 { 265 (void)unlink(FILE); 266 (void)rmdir(DIR); 267 } 268 269 ATF_TC_WITH_CLEANUP(o_search_notdir); 270 ATF_TC_HEAD(o_search_notdir, tc) 271 { 272 atf_tc_set_md_var(tc, "descr", "See that openat fails with non dir fd"); 273 } 274 275 ATF_TC_BODY(o_search_notdir, tc) 276 { 277 int dfd; 278 int fd; 279 280 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 281 ATF_REQUIRE((dfd = open(FILE, O_CREAT|O_RDWR|O_SEARCH, 0644)) != -1); 282 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDWR, 0)) == -1); 283 ATF_REQUIRE(errno == ENOTDIR); 284 } 285 286 ATF_TC_CLEANUP(o_search_notdir, tc) 287 { 288 (void)unlink(FILE); 289 (void)rmdir(DIR); 290 } 291 292 293 294 ATF_TP_ADD_TCS(tp) 295 { 296 297 ATF_TP_ADD_TC(tp, o_search_perm1); 298 ATF_TP_ADD_TC(tp, o_search_root_flag1); 299 ATF_TP_ADD_TC(tp, o_search_unpriv_flag1); 300 ATF_TP_ADD_TC(tp, o_search_perm2); 301 ATF_TP_ADD_TC(tp, o_search_root_flag2); 302 ATF_TP_ADD_TC(tp, o_search_unpriv_flag2); 303 ATF_TP_ADD_TC(tp, o_search_notdir); 304 305 return atf_no_error(); 306 } 307
Indexes created Tue Sep 23 20:09:58 GMT 2025