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SIGSYS: add tests

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Reviewed by:	dchagin, markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D41976
This commit is contained in:
Konstantin Belousov 2023-09-25 21:40:28 +03:00
parent 7acc4240ce
commit 0afcac3e37
2 changed files with 70 additions and 0 deletions
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1
tests/sys/kern/Makefile
View file

@ -48,6 +48,7 @@ TEST_METADATA.unix_seqpacket_test+= timeout="15"
ATF_TESTS_C+= unix_socketpair_test
ATF_TESTS_C+= waitpid_nohang
ATF_TESTS_C+= pdeathsig
ATF_TESTS_C+= sigsys
ATF_TESTS_SH+= coredump_phnum_test
ATF_TESTS_SH+= sonewconn_overflow

69
tests/sys/kern/sigsys.c Normal file
View file

@ -0,0 +1,69 @@
/*-
* Copyright (c) 2023 The FreeBSD Foundation
*
* SPDX-License-Identifier: BSD-2-Clause
*
* This software were developed by Konstantin Belousov <kib@FreeBSD.org>
* under sponsorship from the FreeBSD Foundation.
*/
#include <sys/syscall.h>
#include <atf-c.h>
#include <errno.h>
#include <signal.h>
#include <stdatomic.h>
#include <stdbool.h>
static sig_atomic_t sigsys_cnt;
static void
sigsys_handler(int signo, siginfo_t *si, void *ucp)
{
sigsys_cnt++;
}
ATF_TC(sigsys_test);
ATF_TC_HEAD(sigsys_test, tc)
{
atf_tc_set_md_var(tc, "descr",
"Testing delivery of SIGSYS on invalid syscalls");
}
ATF_TC_BODY(sigsys_test, tc)
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = sigsys_handler;
sa.sa_flags = SA_SIGINFO;
ATF_REQUIRE(sigaction(SIGSYS, &sa, NULL) == 0);
ATF_REQUIRE(syscall(273) == -1); /* reserved */
ATF_CHECK_ERRNO(ENOSYS, true);
atomic_signal_fence(memory_order_seq_cst);
ATF_CHECK_EQ(1, sigsys_cnt);
ATF_REQUIRE(syscall(440) == -1); /* SYS_kse_switchin */
ATF_CHECK_ERRNO(ENOSYS, true);
atomic_signal_fence(memory_order_seq_cst);
ATF_CHECK_EQ(2, sigsys_cnt);
/* Hope this is enough for say next two months */
ATF_REQUIRE(syscall(3000000) == -1);
ATF_CHECK_ERRNO(ENOSYS, true);
atomic_signal_fence(memory_order_seq_cst);
ATF_CHECK_EQ(3, sigsys_cnt);
ATF_REQUIRE(syscall(SYS_afs3_syscall) == -1);
ATF_CHECK_ERRNO(ENOSYS, true);
atomic_signal_fence(memory_order_seq_cst);
ATF_CHECK_EQ(4, sigsys_cnt);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, sigsys_test);
return (atf_no_error());
}