/*-
* Copyright (c) 2009-2011 Robert N. M. Watson
* Copyright (c) 2011 Jonathan Anderson
* Copyright (c) 2012 FreeBSD Foundation
* All rights reserved.
*
* Portions of this software were developed by Pawel Jakub Dawidek under
* sponsorship from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Test whether various operations on capabilities are properly masked for
* various object types.
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/capsicum.h>
#include <sys/errno.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <err.h>
#include <fcntl.h>
#include <poll.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "cap_test.h"
#define SYSCALL_FAIL(syscall, message) \
FAIL("%s:\t%s (rights 0x%jx)", #syscall, message, rights)
/*
* Ensure that, if the capability had enough rights for the system call to
* pass, then it did. Otherwise, ensure that the errno is ENOTCAPABLE;
* capability restrictions should kick in before any other error logic.
*/
#define CHECK_RESULT(syscall, rights_needed, succeeded) do { \
if ((rights & (rights_needed)) == (rights_needed)) { \
if (succeeded) { \
if (success == -1) \
success = PASSED; \
} else { \
SYSCALL_FAIL(syscall, "failed"); \
} \
} else { \
if (succeeded) { \
FAILX("%s:\tsucceeded when it shouldn't have" \
" (rights 0x%jx)", #syscall, \
(uintmax_t)rights); \
} else if (errno != ENOTCAPABLE) { \
SYSCALL_FAIL(syscall, "errno != ENOTCAPABLE"); \
} \
} \
errno = 0; \
} while (0)
/*
* As above, but for the special mmap() case: unmap after successful mmap().
*/
#define CHECK_MMAP_RESULT(rights_needed) do { \
if ((rights & (rights_needed)) == (rights_needed)) { \
if (p == MAP_FAILED) \
SYSCALL_FAIL(mmap, "failed"); \
else { \
(void)munmap(p, getpagesize()); \
if (success == -1) \
success = PASSED; \
} \
} else { \
if (p != MAP_FAILED) { \
FAILX("%s:\tsucceeded when it shouldn't have" \
" (rights 0x%jx)", "mmap", rights); \
(void)munmap(p, getpagesize()); \
} else if (errno != ENOTCAPABLE) \
SYSCALL_FAIL(syscall, "errno != ENOTCAPABLE"); \
} \
errno = 0; \
} while (0)
/*
* Given a file descriptor, create a capability with specific rights and
* make sure only those rights work.
*/
static int
try_file_ops(int filefd, int dirfd, cap_rights_t rights)
{
struct stat sb;
struct statfs sf;
cap_rights_t erights;
int fd_cap, fd_capcap, dfd_cap;
ssize_t ssize, ssize2;
off_t off;
void *p;
char ch;
int ret, is_nfs;
struct pollfd pollfd;
int success = -1;
REQUIRE(fstatfs(filefd, &sf));
is_nfs = (strcmp("nfs", sf.f_fstypename) == 0);
REQUIRE(fd_cap = cap_new(filefd, rights));
CHECK(cap_getrights(fd_cap, &erights) == 0);
CHECK(rights == erights);
REQUIRE(fd_capcap = cap_new(fd_cap, rights));
CHECK(cap_getrights(fd_capcap, &erights) == 0);
CHECK(rights == erights);
CHECK(fd_capcap != fd_cap);
REQUIRE(dfd_cap = cap_new(dirfd, rights));
CHECK(cap_getrights(dfd_cap, &erights) == 0);
CHECK(rights == erights);
ssize = read(fd_cap, &ch, sizeof(ch));
CHECK_RESULT(read, CAP_READ, ssize >= 0);
ssize = write(fd_cap, &ch, sizeof(ch));
CHECK_RESULT(write, CAP_WRITE, ssize >= 0);
off = lseek(fd_cap, 0, SEEK_SET);
CHECK_RESULT(lseek, CAP_SEEK, off >= 0);
ssize = pread(fd_cap, &ch, sizeof(ch), 0);
ssize2 = pread(fd_cap, &ch, sizeof(ch), 0);
CHECK_RESULT(pread, CAP_PREAD, ssize >= 0);
CHECK(ssize == ssize2);
ssize = pwrite(fd_cap, &ch, sizeof(ch), 0);
CHECK_RESULT(pwrite, CAP_PWRITE, ssize >= 0);
p = mmap(NULL, getpagesize(), PROT_NONE, MAP_SHARED, fd_cap, 0);
CHECK_MMAP_RESULT(CAP_MMAP);
p = mmap(NULL, getpagesize(), PROT_READ, MAP_SHARED, fd_cap, 0);
CHECK_MMAP_RESULT(CAP_MMAP_R);
p = mmap(NULL, getpagesize(), PROT_WRITE, MAP_SHARED, fd_cap, 0);
CHECK_MMAP_RESULT(CAP_MMAP_W);
p = mmap(NULL, getpagesize(), PROT_EXEC, MAP_SHARED, fd_cap, 0);
CHECK_MMAP_RESULT(CAP_MMAP_X);
p = mmap(NULL, getpagesize(), PROT_READ | PROT_WRITE, MAP_SHARED,
fd_cap, 0);
CHECK_MMAP_RESULT(CAP_MMAP_RW);
p = mmap(NULL, getpagesize(), PROT_READ | PROT_EXEC, MAP_SHARED,
fd_cap, 0);
CHECK_MMAP_RESULT(CAP_MMAP_RX);
p = mmap(NULL, getpagesize(), PROT_EXEC | PROT_WRITE, MAP_SHARED,
fd_cap, 0);
CHECK_MMAP_RESULT(CAP_MMAP_WX);
p = mmap(NULL, getpagesize(), PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_SHARED, fd_cap, 0);
CHECK_MMAP_RESULT(CAP_MMAP_RWX);
ret = openat(dfd_cap, "cap_create", O_CREAT | O_RDONLY, 0600);
CHECK_RESULT(openat(O_CREATE | O_RDONLY),
CAP_CREATE | CAP_READ | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_create", 0) == 0);
ret = openat(dfd_cap, "cap_create", O_CREAT | O_WRONLY | O_APPEND,
0600);
CHECK_RESULT(openat(O_CREATE | O_WRONLY | O_APPEND),
CAP_CREATE | CAP_WRITE | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_create", 0) == 0);
ret = openat(dfd_cap, "cap_create", O_CREAT | O_RDWR | O_APPEND, 0600);
CHECK_RESULT(openat(O_CREATE | O_RDWR | O_APPEND),
CAP_CREATE | CAP_READ | CAP_WRITE | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_create", 0) == 0);
ret = fsync(fd_cap);
CHECK_RESULT(fsync, CAP_FSYNC, ret == 0);
ret = openat(dirfd, "cap_fsync", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_FSYNC | O_RDONLY);
CHECK_RESULT(openat(O_FSYNC | O_RDONLY),
CAP_FSYNC | CAP_READ | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_FSYNC | O_WRONLY | O_APPEND);
CHECK_RESULT(openat(O_FSYNC | O_WRONLY | O_APPEND),
CAP_FSYNC | CAP_WRITE | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_FSYNC | O_RDWR | O_APPEND);
CHECK_RESULT(openat(O_FSYNC | O_RDWR | O_APPEND),
CAP_FSYNC | CAP_READ | CAP_WRITE | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_SYNC | O_RDONLY);
CHECK_RESULT(openat(O_SYNC | O_RDONLY),
CAP_FSYNC | CAP_READ | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_SYNC | O_WRONLY | O_APPEND);
CHECK_RESULT(openat(O_SYNC | O_WRONLY | O_APPEND),
CAP_FSYNC | CAP_WRITE | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_SYNC | O_RDWR | O_APPEND);
CHECK_RESULT(openat(O_SYNC | O_RDWR | O_APPEND),
CAP_FSYNC | CAP_READ | CAP_WRITE | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
CHECK(unlinkat(dirfd, "cap_fsync", 0) == 0);
ret = ftruncate(fd_cap, 0);
CHECK_RESULT(ftruncate, CAP_FTRUNCATE, ret == 0);
ret = openat(dirfd, "cap_ftruncate", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = openat(dfd_cap, "cap_ftruncate", O_TRUNC | O_RDONLY);
CHECK_RESULT(openat(O_TRUNC | O_RDONLY),
CAP_FTRUNCATE | CAP_READ | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_ftruncate", O_TRUNC | O_WRONLY);
CHECK_RESULT(openat(O_TRUNC | O_WRONLY),
CAP_FTRUNCATE | CAP_WRITE | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_ftruncate", O_TRUNC | O_RDWR);
CHECK_RESULT(openat(O_TRUNC | O_RDWR),
CAP_FTRUNCATE | CAP_READ | CAP_WRITE | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
CHECK(unlinkat(dirfd, "cap_ftruncate", 0) == 0);
ret = openat(dfd_cap, "cap_create", O_CREAT | O_WRONLY, 0600);
CHECK_RESULT(openat(O_CREATE | O_WRONLY),
CAP_CREATE | CAP_WRITE | CAP_SEEK | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_create", 0) == 0);
ret = openat(dfd_cap, "cap_create", O_CREAT | O_RDWR, 0600);
CHECK_RESULT(openat(O_CREATE | O_RDWR),
CAP_CREATE | CAP_READ | CAP_WRITE | CAP_SEEK | CAP_LOOKUP,
ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_create", 0) == 0);
ret = openat(dirfd, "cap_fsync", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_FSYNC | O_WRONLY);
CHECK_RESULT(openat(O_FSYNC | O_WRONLY),
CAP_FSYNC | CAP_WRITE | CAP_SEEK | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_FSYNC | O_RDWR);
CHECK_RESULT(openat(O_FSYNC | O_RDWR),
CAP_FSYNC | CAP_READ | CAP_WRITE | CAP_SEEK | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_SYNC | O_WRONLY);
CHECK_RESULT(openat(O_SYNC | O_WRONLY),
CAP_FSYNC | CAP_WRITE | CAP_SEEK | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
ret = openat(dfd_cap, "cap_fsync", O_SYNC | O_RDWR);
CHECK_RESULT(openat(O_SYNC | O_RDWR),
CAP_FSYNC | CAP_READ | CAP_WRITE | CAP_SEEK | CAP_LOOKUP, ret >= 0);
CHECK(ret == -1 || close(ret) == 0);
CHECK(unlinkat(dirfd, "cap_fsync", 0) == 0);
/*
* Note: this is not expected to work over NFS.
*/
ret = fchflags(fd_cap, UF_NODUMP);
CHECK_RESULT(fchflags, CAP_FCHFLAGS,
ret == 0 || (is_nfs && errno == EOPNOTSUPP));
ret = openat(dirfd, "cap_chflagsat", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = chflagsat(dfd_cap, "cap_chflagsat", UF_NODUMP, 0);
CHECK_RESULT(chflagsat, CAP_CHFLAGSAT | CAP_LOOKUP, ret == 0);
CHECK(unlinkat(dirfd, "cap_chflagsat", 0) == 0);
ret = fchown(fd_cap, -1, -1);
CHECK_RESULT(fchown, CAP_FCHOWN, ret == 0);
ret = openat(dirfd, "cap_fchownat", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = fchownat(dfd_cap, "cap_fchownat", -1, -1, 0);
CHECK_RESULT(fchownat, CAP_FCHOWN | CAP_LOOKUP, ret == 0);
CHECK(unlinkat(dirfd, "cap_fchownat", 0) == 0);
ret = fchmod(fd_cap, 0644);
CHECK_RESULT(fchmod, CAP_FCHMOD, ret == 0);
ret = openat(dirfd, "cap_fchmodat", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = fchmodat(dfd_cap, "cap_fchmodat", 0600, 0);
CHECK_RESULT(fchmodat, CAP_FCHMOD | CAP_LOOKUP, ret == 0);
CHECK(unlinkat(dirfd, "cap_fchmodat", 0) == 0);
ret = fcntl(fd_cap, F_GETFL);
CHECK_RESULT(fcntl(F_GETFL), CAP_FCNTL, ret >= 0);
ret = fcntl(fd_cap, F_SETFL, ret);
CHECK_RESULT(fcntl(F_SETFL), CAP_FCNTL, ret == 0);
/* XXX flock */
ret = fstat(fd_cap, &sb);
CHECK_RESULT(fstat, CAP_FSTAT, ret == 0);
ret = openat(dirfd, "cap_fstatat", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = fstatat(dfd_cap, "cap_fstatat", &sb, 0);
CHECK_RESULT(fstatat, CAP_FSTAT | CAP_LOOKUP, ret == 0);
CHECK(unlinkat(dirfd, "cap_fstatat", 0) == 0);
ret = fstatfs(fd_cap, &sf);
CHECK_RESULT(fstatfs, CAP_FSTATFS, ret == 0);
ret = fpathconf(fd_cap, _PC_NAME_MAX);
CHECK_RESULT(fpathconf, CAP_FPATHCONF, ret >= 0);
ret = futimes(fd_cap, NULL);
CHECK_RESULT(futimes, CAP_FUTIMES, ret == 0);
ret = openat(dirfd, "cap_futimesat", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = futimesat(dfd_cap, "cap_futimesat", NULL);
CHECK_RESULT(futimesat, CAP_FUTIMES | CAP_LOOKUP, ret == 0);
CHECK(unlinkat(dirfd, "cap_futimesat", 0) == 0);
ret = openat(dirfd, "cap_linkat_src", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = linkat(dirfd, "cap_linkat_src", dfd_cap, "cap_linkat_dst", 0);
CHECK_RESULT(linkat, CAP_LINKAT | CAP_LOOKUP, ret == 0);
CHECK(unlinkat(dirfd, "cap_linkat_src", 0) == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_linkat_dst", 0) == 0);
ret = mkdirat(dfd_cap, "cap_mkdirat", 0700);
CHECK_RESULT(mkdirat, CAP_MKDIRAT | CAP_LOOKUP, ret == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_mkdirat", AT_REMOVEDIR) == 0);
ret = mkfifoat(dfd_cap, "cap_mkfifoat", 0600);
CHECK_RESULT(mkfifoat, CAP_MKFIFOAT | CAP_LOOKUP, ret == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_mkfifoat", 0) == 0);
ret = mknodat(dfd_cap, "cap_mknodat", S_IFCHR | 0600, 0);
CHECK_RESULT(mknodat, CAP_MKNODAT | CAP_LOOKUP, ret == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_mknodat", 0) == 0);
/* TODO: renameat(2) */
ret = symlinkat("test", dfd_cap, "cap_symlinkat");
CHECK_RESULT(symlinkat, CAP_SYMLINKAT | CAP_LOOKUP, ret == 0);
CHECK(ret == -1 || unlinkat(dirfd, "cap_symlinkat", 0) == 0);
ret = openat(dirfd, "cap_unlinkat", O_CREAT, 0600);
CHECK(ret >= 0);
CHECK(close(ret) == 0);
ret = unlinkat(dfd_cap, "cap_unlinkat", 0);
CHECK_RESULT(unlinkat, CAP_UNLINKAT | CAP_LOOKUP, ret == 0);
CHECK(ret == 0 || unlinkat(dirfd, "cap_unlinkat", 0) == 0);
ret = mkdirat(dirfd, "cap_unlinkat", 0700);
CHECK(ret == 0);
ret = unlinkat(dfd_cap, "cap_unlinkat", AT_REMOVEDIR);
CHECK_RESULT(unlinkat, CAP_UNLINKAT | CAP_LOOKUP, ret == 0);
CHECK(ret == 0 || unlinkat(dirfd, "cap_unlinkat", AT_REMOVEDIR) == 0);
pollfd.fd = fd_cap;
pollfd.events = POLLIN | POLLERR | POLLHUP;
pollfd.revents = 0;
ret = poll(&pollfd, 1, 0);
if (rights & CAP_EVENT)
CHECK((pollfd.revents & POLLNVAL) == 0);
else
CHECK((pollfd.revents & POLLNVAL) != 0);
/* XXX: select, kqueue */
close(fd_cap);
close(fd_capcap);
if (success == -1) {
fprintf(stderr, "No tests for rights 0x%jx.\n",
(uintmax_t)rights);
success = FAILED;
}
return (success);
}
#define TRY(rights) \
do { \
if (success == PASSED) \
success = try_file_ops(filefd, dirfd, (rights)); \
else \
/* We've already failed, but try the test anyway. */ \
try_file_ops(filefd, dirfd, (rights)); \
} while (0)
#define KEEP_ERRNO(...) do { \
int _saved_errno = errno; \
__VA_ARGS__; \
errno = _saved_errno; \
} while (0);
int
test_capabilities(void)
{
int filefd, dirfd, tmpfd;
int success = PASSED;
char file[] = "/tmp/cap_test.XXXXXXXXXX";
char dir[] = "/tmp/cap_test.XXXXXXXXXX";
filefd = mkstemp(file);
if (filefd < 0)
err(-1, "mkstemp");
if (mkdtemp(dir) == NULL) {
KEEP_ERRNO(unlink(file));
err(-1, "mkdtemp");
}
dirfd = open(dir, O_RDONLY | O_DIRECTORY);
if (dirfd == -1) {
KEEP_ERRNO(unlink(file));
KEEP_ERRNO(rmdir(dir));
err(-1, "open");
}
tmpfd = open("/tmp", O_RDONLY | O_DIRECTORY);
if (tmpfd == -1) {
KEEP_ERRNO(unlink(file));
KEEP_ERRNO(rmdir(dir));
err(-1, "open");
}
if (cap_enter() == -1) {
KEEP_ERRNO(unlink(file));
KEEP_ERRNO(rmdir(dir));
err(-1, "cap_enter");
}
TRY(CAP_READ);
TRY(CAP_WRITE);
TRY(CAP_SEEK);
TRY(CAP_PREAD);
TRY(CAP_PWRITE);
TRY(CAP_READ | CAP_WRITE);
TRY(CAP_PREAD | CAP_PWRITE);
TRY(CAP_MMAP);
TRY(CAP_MMAP_R);
TRY(CAP_MMAP_W);
TRY(CAP_MMAP_X);
TRY(CAP_MMAP_RW);
TRY(CAP_MMAP_RX);
TRY(CAP_MMAP_WX);
TRY(CAP_MMAP_RWX);
TRY(CAP_CREATE | CAP_READ | CAP_LOOKUP);
TRY(CAP_CREATE | CAP_WRITE | CAP_LOOKUP);
TRY(CAP_CREATE | CAP_READ | CAP_WRITE | CAP_LOOKUP);
#ifdef TODO
TRY(CAP_FEXECVE);
#endif
TRY(CAP_FSYNC);
TRY(CAP_FSYNC | CAP_READ | CAP_LOOKUP);
TRY(CAP_FSYNC | CAP_WRITE | CAP_LOOKUP);
TRY(CAP_FSYNC | CAP_READ | CAP_WRITE | CAP_LOOKUP);
TRY(CAP_FTRUNCATE);
TRY(CAP_FTRUNCATE | CAP_READ | CAP_LOOKUP);
TRY(CAP_FTRUNCATE | CAP_WRITE | CAP_LOOKUP);
TRY(CAP_FTRUNCATE | CAP_READ | CAP_WRITE | CAP_LOOKUP);
#ifdef TODO
TRY(CAP_FCHDIR);
#endif
TRY(CAP_FCHFLAGS);
TRY(CAP_FCHOWN);
TRY(CAP_FCHOWN | CAP_LOOKUP);
TRY(CAP_FCHMOD | CAP_LOOKUP);
TRY(CAP_FCNTL);
#ifdef TODO
TRY(CAP_FLOCK);
#endif
TRY(CAP_FPATHCONF);
#ifdef TODO
TRY(CAP_FSCK);
#endif
TRY(CAP_FSTAT | CAP_LOOKUP);
TRY(CAP_FSTATFS);
TRY(CAP_FUTIMES | CAP_LOOKUP);
TRY(CAP_LINKAT | CAP_LOOKUP);
TRY(CAP_MKDIRAT | CAP_LOOKUP);
TRY(CAP_MKFIFOAT | CAP_LOOKUP);
TRY(CAP_MKNODAT | CAP_LOOKUP);
TRY(CAP_SYMLINKAT | CAP_LOOKUP);
TRY(CAP_UNLINKAT | CAP_LOOKUP);
/* Rename needs CAP_RENAMEAT on source directory and CAP_LINKAT on destination directory. */
TRY(CAP_RENAMEAT | CAP_UNLINKAT | CAP_LOOKUP);
#ifdef TODO
TRY(CAP_LOOKUP);
TRY(CAP_EXTATTR_DELETE);
TRY(CAP_EXTATTR_GET);
TRY(CAP_EXTATTR_LIST);
TRY(CAP_EXTATTR_SET);
TRY(CAP_ACL_CHECK);
TRY(CAP_ACL_DELETE);
TRY(CAP_ACL_GET);
TRY(CAP_ACL_SET);
TRY(CAP_ACCEPT);
TRY(CAP_BIND);
TRY(CAP_CONNECT);
TRY(CAP_GETPEERNAME);
TRY(CAP_GETSOCKNAME);
TRY(CAP_GETSOCKOPT);
TRY(CAP_LISTEN);
TRY(CAP_PEELOFF);
TRY(CAP_RECV);
TRY(CAP_SEND);
TRY(CAP_SETSOCKOPT);
TRY(CAP_SHUTDOWN);
TRY(CAP_MAC_GET);
TRY(CAP_MAC_SET);
TRY(CAP_SEM_GETVALUE);
TRY(CAP_SEM_POST);
TRY(CAP_SEM_WAIT);
TRY(CAP_POST_EVENT);
TRY(CAP_EVENT);
TRY(CAP_IOCTL);
TRY(CAP_TTYHOOK);
TRY(CAP_PDGETPID);
TRY(CAP_PDWAIT);
TRY(CAP_PDKILL);
#endif
(void)unlinkat(tmpfd, file + strlen("/tmp/"), 0);
(void)unlinkat(tmpfd, dir + strlen("/tmp/"), AT_REMOVEDIR);
return (success);
}
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