From: Dmitry V. Levin <ldv@altlinux.org>
Date: Thu, 9 Feb 2017 22:26:14 +0000 (+0000)
Subject: tests: check signal injection along with fault injection
X-Git-Tag: v4.16~8
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=98313939b3d08f1ede8459630a1f5de934c29a36;p=strace

tests: check signal injection along with fault injection

* tests/qual_inject-error-signal.c: New file.
* tests/qual_inject-error-signal.expected: Likewise.
* tests/qual_inject-error-signal.test: New test.
* tests/.gitignore: Add qual_inject-error-signal.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(MISC_TESTS): Add qual_inject-error-signal.test.
(EXTRA_DIST): Add qual_inject-error-signal.expected.
---

diff --git a/tests/.gitignore b/tests/.gitignore
index 88097a4f..1765ac70 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -239,6 +239,7 @@ pselect6
 ptrace
 pwritev
 qual_fault
+qual_inject-error-signal
 qual_inject-retval
 qual_inject-signal
 qual_signal
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 56cc1699..11eec013 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -298,6 +298,7 @@ check_PROGRAMS = \
 	ptrace \
 	pwritev \
 	qual_fault \
+	qual_inject-error-signal \
 	qual_inject-retval \
 	qual_inject-signal \
 	qual_signal \
@@ -846,6 +847,7 @@ MISC_TESTS = \
 	pc.test \
 	qual_fault-syntax.test \
 	qual_fault.test \
+	qual_inject-error-signal.test \
 	qual_inject-retval.test \
 	qual_inject-signal.test \
 	qual_inject-syntax.test \
@@ -906,6 +908,7 @@ EXTRA_DIST = init.sh run.sh match.awk \
 	     ppoll.expected \
 	     process_vm_readv_writev.c \
 	     qual_fault-exit_group.expected \
+	     qual_inject-error-signal.expected \
 	     qual_inject-signal.expected \
 	     quotactl.h \
 	     scno_tampering.sh \
diff --git a/tests/qual_inject-error-signal.c b/tests/qual_inject-error-signal.c
new file mode 100644
index 00000000..f4ccd824
--- /dev/null
+++ b/tests/qual_inject-error-signal.c
@@ -0,0 +1,69 @@
+/*
+ * Check fault injection along with signal injection.
+ *
+ * Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+#include "tests.h"
+#include <signal.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <asm/unistd.h>
+
+static struct stat before, after;
+
+static void
+handler(int sig)
+{
+	if (stat(".", &after))
+		syscall(__NR_exit_group, 2);
+
+	if (before.st_dev != after.st_dev || before.st_ino != after.st_ino)
+		syscall(__NR_exit_group, 3);
+
+	syscall(__NR_exit_group, 0);
+}
+
+int
+main(void)
+{
+	const struct sigaction act = { .sa_handler = handler };
+	if (sigaction(SIGUSR1, &act, NULL))
+		perror_msg_and_fail("sigaction");
+
+	sigset_t mask;
+	sigemptyset(&mask);
+	sigaddset(&mask, SIGUSR1);
+	if (sigprocmask(SIG_UNBLOCK, &mask, NULL))
+		perror_msg_and_fail("sigprocmask");
+
+	if (stat(".", &before))
+		perror_msg_and_fail("stat");
+
+	syscall(__NR_chdir, ".");
+	syscall(__NR_exit_group, 1);
+	return 1;
+}
diff --git a/tests/qual_inject-error-signal.expected b/tests/qual_inject-error-signal.expected
new file mode 100644
index 00000000..24389b37
--- /dev/null
+++ b/tests/qual_inject-error-signal.expected
@@ -0,0 +1,4 @@
+chdir(".")  = -1 ENOENT (No such file or directory) (INJECTED)
+--- SIGUSR1 {si_signo=SIGUSR1, si_code=SI_KERNEL} ---
+exit_group(0) = ?
++++ exited with 0 +++
diff --git a/tests/qual_inject-error-signal.test b/tests/qual_inject-error-signal.test
new file mode 100755
index 00000000..fcbcc398
--- /dev/null
+++ b/tests/qual_inject-error-signal.test
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# Check fault injection along with signal injection.
+. "${srcdir=.}/scno_tampering.sh"
+
+run_strace -a12 -echdir,exit_group -einject=chdir:error=ENOENT:signal=USR1 \
+	"./$NAME"
+match_diff