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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <fcntl.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>
#include "acl-util.h"
#include "errno-util.h"
#include "fd-util.h"
#include "format-util.h"
#include "fs-util.h"
#include "path-util.h"
#include "string-util.h"
#include "tests.h"
#include "tmpfile-util.h"
#include "user-util.h"
TEST_RET(add_acls_for_user) {
_cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-empty.XXXXXX";
_cleanup_close_ int fd = -EBADF;
char *cmd;
uid_t uid;
int r;
FOREACH_STRING(s, "capsh", "getfacl", "ls") {
r = find_executable(s, NULL);
if (r < 0)
return log_tests_skipped_errno(r, "Could not find %s binary: %m", s);
}
fd = mkostemp_safe(fn);
assert_se(fd >= 0);
/* Use the mode that user journal files use */
assert_se(fchmod(fd, 0640) == 0);
cmd = strjoina("ls -l ", fn);
assert_se(system(cmd) == 0);
cmd = strjoina("getfacl -p ", fn);
assert_se(system(cmd) == 0);
if (getuid() == 0) {
const char *nobody = NOBODY_USER_NAME;
r = get_user_creds(&nobody, &uid, NULL, NULL, NULL, 0);
if (r < 0)
uid = 0;
} else
uid = getuid();
r = fd_add_uid_acl_permission(fd, uid, ACL_READ);
if (ERRNO_IS_NOT_SUPPORTED(r))
return log_tests_skipped("no ACL support on /tmp");
log_info_errno(r, "fd_add_uid_acl_permission(%i, "UID_FMT", ACL_READ): %m", fd, uid);
assert_se(r >= 0);
cmd = strjoina("ls -l ", fn);
assert_se(system(cmd) == 0);
cmd = strjoina("getfacl -p ", fn);
assert_se(system(cmd) == 0);
/* set the acls again */
r = fd_add_uid_acl_permission(fd, uid, ACL_READ);
assert_se(r >= 0);
cmd = strjoina("ls -l ", fn);
assert_se(system(cmd) == 0);
cmd = strjoina("getfacl -p ", fn);
assert_se(system(cmd) == 0);
return 0;
}
TEST_RET(fd_acl_make_read_only) {
_cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-empty.XXXXXX";
_cleanup_close_ int fd = -EBADF;
const char *cmd;
struct stat st;
int r;
FOREACH_STRING(s, "capsh", "getfacl", "ls", "stat") {
r = find_executable(s, NULL);
if (r < 0)
return log_tests_skipped_errno(r, "Could not find %s binary: %m", s);
}
fd = mkostemp_safe(fn);
assert_se(fd >= 0);
/* make it more exciting */
(void) fd_add_uid_acl_permission(fd, 1, ACL_READ|ACL_WRITE|ACL_EXECUTE);
ASSERT_OK_ERRNO(fstat(fd, &st));
assert_se(FLAGS_SET(st.st_mode, 0200));
cmd = strjoina("getfacl -p ", fn);
assert_se(system(cmd) == 0);
cmd = strjoina("stat ", fn);
assert_se(system(cmd) == 0);
log_info("read-only");
assert_se(fd_acl_make_read_only(fd));
ASSERT_OK_ERRNO(fstat(fd, &st));
assert_se((st.st_mode & 0222) == 0000);
cmd = strjoina("getfacl -p ", fn);
assert_se(system(cmd) == 0);
cmd = strjoina("stat ", fn);
assert_se(system(cmd) == 0);
log_info("writable");
assert_se(fd_acl_make_writable(fd));
ASSERT_OK_ERRNO(fstat(fd, &st));
assert_se((st.st_mode & 0222) == 0200);
cmd = strjoina("getfacl -p ", fn);
assert_se(system(cmd) == 0);
cmd = strjoina("stat ", fn);
assert_se(system(cmd) == 0);
log_info("read-only");
assert_se(fd_acl_make_read_only(fd));
ASSERT_OK_ERRNO(fstat(fd, &st));
assert_se((st.st_mode & 0222) == 0000);
cmd = strjoina("getfacl -p ", fn);
assert_se(system(cmd) == 0);
cmd = strjoina("stat ", fn);
assert_se(system(cmd) == 0);
return 0;
}
DEFINE_TEST_MAIN(LOG_INFO);
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