1272343Sngie/* $NetBSD: t_fchownat.c,v 1.3 2013/03/17 04:46:06 jmmv Exp $ */ 2272343Sngie 3272343Sngie/*- 4272343Sngie * Copyright (c) 2012 The NetBSD Foundation, Inc. 5272343Sngie * All rights reserved. 6272343Sngie * 7272343Sngie * This code is derived from software contributed to The NetBSD Foundation 8272343Sngie * by Emmanuel Dreyfus. 9272343Sngie * 10272343Sngie * Redistribution and use in source and binary forms, with or without 11272343Sngie * modification, are permitted provided that the following conditions 12272343Sngie * are met: 13272343Sngie * 1. Redistributions of source code must retain the above copyright 14272343Sngie * notice, this list of conditions and the following disclaimer. 15272343Sngie * 2. Redistributions in binary form must reproduce the above copyright 16272343Sngie * notice, this list of conditions and the following disclaimer in the 17272343Sngie * documentation and/or other materials provided with the distribution. 18272343Sngie * 19272343Sngie * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20272343Sngie * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21272343Sngie * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22272343Sngie * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23272343Sngie * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24272343Sngie * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25272343Sngie * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26272343Sngie * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27272343Sngie * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28272343Sngie * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29272343Sngie * POSSIBILITY OF SUCH DAMAGE. 30272343Sngie */ 31272343Sngie#include <sys/cdefs.h> 32272343Sngie__RCSID("$NetBSD: t_fchownat.c,v 1.3 2013/03/17 04:46:06 jmmv Exp $"); 33272343Sngie 34272343Sngie#include <atf-c.h> 35272343Sngie#include <errno.h> 36272343Sngie#include <fcntl.h> 37272343Sngie#include <limits.h> 38272343Sngie#include <paths.h> 39272343Sngie#include <stdio.h> 40272343Sngie#include <string.h> 41272343Sngie#include <unistd.h> 42272343Sngie#include <pwd.h> 43272343Sngie#include <sys/param.h> 44277443Sngie#ifdef __FreeBSD__ 45277443Sngie#include <sys/stat.h> 46277443Sngie#endif 47272343Sngie 48272343Sngie#define DIR "dir" 49272343Sngie#define FILE "dir/fchownat" 50272343Sngie#define BASEFILE "fchownat" 51272343Sngie#define LINK "dir/symlink" 52272343Sngie#define BASELINK "symlink" 53272343Sngie#define FILEERR "dir/fchownaterr" 54272343Sngie#define USER "nobody" 55272343Sngie 56272343Sngiestatic int getuser(uid_t *, gid_t *); 57272343Sngie 58272343Sngiestatic int getuser(uid_t *uid, gid_t *gid) 59272343Sngie{ 60272343Sngie struct passwd *pw; 61272343Sngie 62272343Sngie if ((pw = getpwnam(USER)) == NULL) 63272343Sngie return -1; 64272343Sngie 65272343Sngie *uid = pw->pw_uid; 66272343Sngie *gid = pw->pw_gid; 67272343Sngie 68272343Sngie return 0; 69272343Sngie} 70272343Sngie 71272343SngieATF_TC(fchownat_fd); 72272343SngieATF_TC_HEAD(fchownat_fd, tc) 73272343Sngie{ 74272343Sngie atf_tc_set_md_var(tc, "descr", "See that fchownat works with fd"); 75272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 76272343Sngie} 77272343SngieATF_TC_BODY(fchownat_fd, tc) 78272343Sngie{ 79272343Sngie int dfd; 80272343Sngie int fd; 81272343Sngie uid_t uid; 82272343Sngie gid_t gid; 83272343Sngie struct stat st; 84272343Sngie 85272343Sngie ATF_REQUIRE(getuser(&uid, &gid) == 0); 86272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 87272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 88272343Sngie ATF_REQUIRE(close(fd) == 0); 89272343Sngie 90272343Sngie ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 91272343Sngie ATF_REQUIRE(fchownat(dfd, BASEFILE, uid, gid, 0) == 0); 92272343Sngie ATF_REQUIRE(close(dfd) == 0); 93272343Sngie 94272343Sngie ATF_REQUIRE(stat(FILE, &st) == 0); 95272343Sngie ATF_REQUIRE(st.st_uid == uid); 96272343Sngie ATF_REQUIRE(st.st_gid == gid); 97272343Sngie} 98272343Sngie 99272343SngieATF_TC(fchownat_fdcwd); 100272343SngieATF_TC_HEAD(fchownat_fdcwd, tc) 101272343Sngie{ 102272343Sngie atf_tc_set_md_var(tc, "descr", 103272343Sngie "See that fchownat works with fd as AT_FDCWD"); 104272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 105272343Sngie} 106272343SngieATF_TC_BODY(fchownat_fdcwd, tc) 107272343Sngie{ 108272343Sngie int fd; 109272343Sngie uid_t uid; 110272343Sngie gid_t gid; 111272343Sngie struct stat st; 112272343Sngie 113272343Sngie ATF_REQUIRE(getuser(&uid, &gid) == 0); 114272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 115272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 116272343Sngie ATF_REQUIRE(close(fd) == 0); 117272343Sngie 118272343Sngie ATF_REQUIRE(chdir(DIR) == 0); 119272343Sngie ATF_REQUIRE(fchownat(AT_FDCWD, BASEFILE, uid, gid, 0) == 0); 120272343Sngie 121272343Sngie ATF_REQUIRE(stat(BASEFILE, &st) == 0); 122272343Sngie ATF_REQUIRE(st.st_uid == uid); 123272343Sngie ATF_REQUIRE(st.st_gid == gid); 124272343Sngie} 125272343Sngie 126272343SngieATF_TC(fchownat_fdcwderr); 127272343SngieATF_TC_HEAD(fchownat_fdcwderr, tc) 128272343Sngie{ 129272343Sngie atf_tc_set_md_var(tc, "descr", 130272343Sngie "See that fchownat fails with fd as AT_FDCWD and bad path"); 131272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 132272343Sngie} 133272343SngieATF_TC_BODY(fchownat_fdcwderr, tc) 134272343Sngie{ 135272343Sngie uid_t uid; 136272343Sngie gid_t gid; 137272343Sngie 138272343Sngie ATF_REQUIRE(getuser(&uid, &gid) == 0); 139272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 140272343Sngie ATF_REQUIRE(fchownat(AT_FDCWD, FILEERR, uid, gid, 0) == -1); 141272343Sngie} 142272343Sngie 143272343SngieATF_TC(fchownat_fderr1); 144272343SngieATF_TC_HEAD(fchownat_fderr1, tc) 145272343Sngie{ 146272343Sngie atf_tc_set_md_var(tc, "descr", "See that fchownat fail with bad path"); 147272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 148272343Sngie} 149272343SngieATF_TC_BODY(fchownat_fderr1, tc) 150272343Sngie{ 151272343Sngie int dfd; 152272343Sngie uid_t uid; 153272343Sngie gid_t gid; 154272343Sngie 155272343Sngie ATF_REQUIRE(getuser(&uid, &gid) == 0); 156272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 157272343Sngie ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 158272343Sngie ATF_REQUIRE(fchownat(dfd, FILEERR, uid, gid, 0) == -1); 159272343Sngie ATF_REQUIRE(close(dfd) == 0); 160272343Sngie} 161272343Sngie 162272343SngieATF_TC(fchownat_fderr2); 163272343SngieATF_TC_HEAD(fchownat_fderr2, tc) 164272343Sngie{ 165272343Sngie atf_tc_set_md_var(tc, "descr", "See that fchownat fails with bad fdat"); 166272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 167272343Sngie} 168272343SngieATF_TC_BODY(fchownat_fderr2, tc) 169272343Sngie{ 170272343Sngie int dfd; 171272343Sngie int fd; 172272343Sngie char cwd[MAXPATHLEN]; 173272343Sngie uid_t uid; 174272343Sngie gid_t gid; 175272343Sngie 176272343Sngie ATF_REQUIRE(getuser(&uid, &gid) == 0); 177272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 178272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 179272343Sngie ATF_REQUIRE(close(fd) == 0); 180272343Sngie 181272343Sngie ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1); 182272343Sngie ATF_REQUIRE(fchownat(dfd, BASEFILE, uid, gid, 0) == -1); 183272343Sngie ATF_REQUIRE(close(dfd) == 0); 184272343Sngie} 185272343Sngie 186272343SngieATF_TC(fchownat_fderr3); 187272343SngieATF_TC_HEAD(fchownat_fderr3, tc) 188272343Sngie{ 189272343Sngie atf_tc_set_md_var(tc, "descr", "See that fchownat fails with fd as -1"); 190272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 191272343Sngie} 192272343SngieATF_TC_BODY(fchownat_fderr3, tc) 193272343Sngie{ 194272343Sngie int fd; 195272343Sngie uid_t uid; 196272343Sngie gid_t gid; 197272343Sngie 198272343Sngie ATF_REQUIRE(getuser(&uid, &gid) == 0); 199272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 200272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 201272343Sngie ATF_REQUIRE(close(fd) == 0); 202272343Sngie 203272343Sngie ATF_REQUIRE(fchownat(-1, FILE, uid, gid, 0) == -1); 204272343Sngie} 205272343Sngie 206272343SngieATF_TC(fchownat_fdlink); 207272343SngieATF_TC_HEAD(fchownat_fdlink, tc) 208272343Sngie{ 209272343Sngie atf_tc_set_md_var(tc, "descr", "See that fchownat works on symlink"); 210272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 211272343Sngie} 212272343SngieATF_TC_BODY(fchownat_fdlink, tc) 213272343Sngie{ 214272343Sngie int dfd; 215272343Sngie uid_t uid; 216272343Sngie gid_t gid; 217272343Sngie struct stat st; 218272343Sngie 219272343Sngie ATF_REQUIRE(getuser(&uid, &gid) == 0); 220272343Sngie ATF_REQUIRE(mkdir(DIR, 0755) == 0); 221272343Sngie ATF_REQUIRE(symlink(FILE, LINK) == 0); /* Target does not exists */ 222272343Sngie 223272343Sngie ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 224272343Sngie 225272343Sngie ATF_REQUIRE(fchownat(dfd, BASELINK, uid, gid, 0) == -1); 226272343Sngie ATF_REQUIRE(errno == ENOENT); 227272343Sngie 228272343Sngie ATF_REQUIRE(fchownat(dfd, BASELINK, uid, gid, 229272343Sngie AT_SYMLINK_NOFOLLOW) == 0); 230272343Sngie 231272343Sngie ATF_REQUIRE(close(dfd) == 0); 232272343Sngie 233272343Sngie ATF_REQUIRE(lstat(LINK, &st) == 0); 234272343Sngie ATF_REQUIRE(st.st_uid == uid); 235272343Sngie ATF_REQUIRE(st.st_gid == gid); 236272343Sngie} 237272343Sngie 238272343SngieATF_TP_ADD_TCS(tp) 239272343Sngie{ 240272343Sngie 241272343Sngie ATF_TP_ADD_TC(tp, fchownat_fd); 242272343Sngie ATF_TP_ADD_TC(tp, fchownat_fdcwd); 243272343Sngie ATF_TP_ADD_TC(tp, fchownat_fdcwderr); 244272343Sngie ATF_TP_ADD_TC(tp, fchownat_fderr1); 245272343Sngie ATF_TP_ADD_TC(tp, fchownat_fderr2); 246272343Sngie ATF_TP_ADD_TC(tp, fchownat_fderr3); 247272343Sngie ATF_TP_ADD_TC(tp, fchownat_fdlink); 248272343Sngie 249272343Sngie return atf_no_error(); 250272343Sngie} 251