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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <unistd.h>
#include <sys/types.h>
#include "fd-util.h"
#include "fileio.h"
#include "format-util.h"
#include "fs-util.h"
#include "tests.h"
#include "tmpfile-util.h"
#include "uid-alloc-range.h"
static void test_read_login_defs_one(const char *path) {
log_info("/* %s(\"%s\") */", __func__, path ?: "<custom>");
_cleanup_(unlink_tempfilep) char name[] = "/tmp/test-user-record.XXXXXX";
_cleanup_fclose_ FILE *f = NULL;
if (!path) {
assert_se(fmkostemp_safe(name, "r+", &f) == 0);
fprintf(f,
"SYS_UID_MIN "UID_FMT"\n"
"SYS_UID_MAX "UID_FMT"\n"
"SYS_GID_MIN "GID_FMT"\n"
"SYS_GID_MAX "GID_FMT"\n",
(uid_t) (SYSTEM_ALLOC_UID_MIN + 5),
(uid_t) (SYSTEM_UID_MAX + 5),
(gid_t) (SYSTEM_ALLOC_GID_MIN + 5),
(gid_t) (SYSTEM_GID_MAX + 5));
assert_se(fflush_and_check(f) >= 0);
}
UGIDAllocationRange defs;
assert_se(read_login_defs(&defs, path ?: name, NULL) >= 0);
log_info("system_alloc_uid_min="UID_FMT, defs.system_alloc_uid_min);
log_info("system_uid_max="UID_FMT, defs.system_uid_max);
log_info("system_alloc_gid_min="GID_FMT, defs.system_alloc_gid_min);
log_info("system_gid_max="GID_FMT, defs.system_gid_max);
if (!path) {
uid_t offset = ENABLE_COMPAT_MUTABLE_UID_BOUNDARIES ? 5 : 0;
assert_se(defs.system_alloc_uid_min == SYSTEM_ALLOC_UID_MIN + offset);
assert_se(defs.system_uid_max == SYSTEM_UID_MAX + offset);
assert_se(defs.system_alloc_gid_min == SYSTEM_ALLOC_GID_MIN + offset);
assert_se(defs.system_gid_max == SYSTEM_GID_MAX + offset);
} else if (streq(path, "/dev/null")) {
assert_se(defs.system_alloc_uid_min == SYSTEM_ALLOC_UID_MIN);
assert_se(defs.system_uid_max == SYSTEM_UID_MAX);
assert_se(defs.system_alloc_gid_min == SYSTEM_ALLOC_GID_MIN);
assert_se(defs.system_gid_max == SYSTEM_GID_MAX);
}
}
TEST(read_login_defs) {
test_read_login_defs_one("/dev/null");
test_read_login_defs_one("/etc/login.defs");
test_read_login_defs_one(NULL);
}
TEST(acquire_ugid_allocation_range) {
const UGIDAllocationRange *defs;
assert_se(defs = acquire_ugid_allocation_range());
log_info("system_alloc_uid_min="UID_FMT, defs->system_alloc_uid_min);
log_info("system_uid_max="UID_FMT, defs->system_uid_max);
log_info("system_alloc_gid_min="GID_FMT, defs->system_alloc_gid_min);
log_info("system_gid_max="GID_FMT, defs->system_gid_max);
}
TEST(uid_is_system) {
uid_t uid = 0;
log_info("uid_is_system("UID_FMT") = %s", uid, yes_no(uid_is_system(uid)));
uid = 999;
log_info("uid_is_system("UID_FMT") = %s", uid, yes_no(uid_is_system(uid)));
uid = getuid();
log_info("uid_is_system("UID_FMT") = %s", uid, yes_no(uid_is_system(uid)));
}
TEST(gid_is_system) {
gid_t gid = 0;
log_info("gid_is_system("GID_FMT") = %s", gid, yes_no(gid_is_system(gid)));
gid = 999;
log_info("gid_is_system("GID_FMT") = %s", gid, yes_no(gid_is_system(gid)));
gid = getgid();
log_info("gid_is_system("GID_FMT") = %s", gid, yes_no(gid_is_system(gid)));
}
DEFINE_TEST_MAIN(LOG_DEBUG);
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