[LTP] [PATCH v2] getsockopt: Add test for SO_PEERCRED
vkabatov@redhat.com
vkabatov@redhat.com
Mon Jul 24 16:03:18 CEST 2017
From: Veronika Kabatova <vkabatov@redhat.com>
Connect to a socket from a fork and check SO_PEERCRED returns
correct PID.
Signed-off-by: Veronika Kabatova <vkabatov@redhat.com>
---
runtest/syscalls | 1 +
testcases/kernel/syscalls/.gitignore | 1 +
testcases/kernel/syscalls/getsockopt/Makefile | 2 +
.../kernel/syscalls/getsockopt/getsockopt02.c | 106 +++++++++++++++++++++
4 files changed, 110 insertions(+)
create mode 100644 testcases/kernel/syscalls/getsockopt/getsockopt02.c
diff --git a/runtest/syscalls b/runtest/syscalls
index 2e79ab9..c85c713 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -434,6 +434,7 @@ getsid02 getsid02
getsockname01 getsockname01
getsockopt01 getsockopt01
+getsockopt02 getsockopt02
gettid01 gettid01
diff --git a/testcases/kernel/syscalls/.gitignore b/testcases/kernel/syscalls/.gitignore
index fdb01f9..958bd7a 100644
--- a/testcases/kernel/syscalls/.gitignore
+++ b/testcases/kernel/syscalls/.gitignore
@@ -362,6 +362,7 @@
/getsid/getsid02
/getsockname/getsockname01
/getsockopt/getsockopt01
+/getsockopt/getsockopt02
/gettid/gettid01
/gettimeofday/gettimeofday01
/gettimeofday/gettimeofday02
diff --git a/testcases/kernel/syscalls/getsockopt/Makefile b/testcases/kernel/syscalls/getsockopt/Makefile
index bd617d8..033d73f 100644
--- a/testcases/kernel/syscalls/getsockopt/Makefile
+++ b/testcases/kernel/syscalls/getsockopt/Makefile
@@ -18,6 +18,8 @@
top_srcdir ?= ../../../..
+getsockopt02: CFLAGS+=-pthread
+
include $(top_srcdir)/include/mk/testcases.mk
include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/syscalls/getsockopt/getsockopt02.c b/testcases/kernel/syscalls/getsockopt/getsockopt02.c
new file mode 100644
index 0000000..50e9034
--- /dev/null
+++ b/testcases/kernel/syscalls/getsockopt/getsockopt02.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2017 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Test description: Test retrieving of peer credentials (SO_PEERCRED)
+ *
+ */
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <stdlib.h>
+#include "tst_test.h"
+
+static int socket_fd, fork_socket_fd, accepted;
+static struct sockaddr_un sun;
+
+#define SOCKNAME "testsocket"
+
+static void setup(void)
+{
+ sun.sun_family = AF_UNIX;
+ (void)strcpy(sun.sun_path, SOCKNAME);
+ socket_fd = SAFE_SOCKET(sun.sun_family, SOCK_STREAM, 0);
+ SAFE_BIND(socket_fd, (struct sockaddr *)&sun, sizeof(sun));
+ SAFE_LISTEN(socket_fd, SOMAXCONN);
+}
+
+static void fork_func(void)
+{
+ fork_socket_fd = SAFE_SOCKET(sun.sun_family, SOCK_STREAM, 0);
+ SAFE_CONNECT(fork_socket_fd, (struct sockaddr *)&sun, sizeof(sun));
+}
+
+static void test_function(void)
+{
+ pid_t fork_id;
+ struct ucred cred;
+ int status;
+ socklen_t cred_len = sizeof(cred);
+
+ fork_id = SAFE_FORK();
+ if (!fork_id) {
+ fork_func();
+ exit(0);
+ }
+
+ SAFE_WAITPID(fork_id, &status, 0);
+ accepted = accept(socket_fd, NULL, NULL);
+ if (accepted < 0) {
+ tst_res(TFAIL | TERRNO, "Error with accepting connection");
+ return;
+ }
+ if (getsockopt(accepted, SOL_SOCKET,
+ SO_PEERCRED, &cred, &cred_len) < 0) {
+ tst_res(TFAIL | TERRNO, "Error while getting socket options");
+ return;
+ }
+
+ if (accepted >= 0) {
+ (void)shutdown(accepted, SHUT_RDWR);
+ SAFE_CLOSE(accepted);
+ }
+ if (fork_socket_fd >= 0)
+ SAFE_CLOSE(fork_socket_fd);
+
+ if (fork_id != cred.pid) {
+ tst_res(TFAIL, "Received wrong PID %d, expected %d",
+ cred.pid, getpid());
+ } else
+ tst_res(TPASS, "Test passed");
+}
+
+static void cleanup(void)
+{
+ if (accepted >= 0) {
+ (void)shutdown(accepted, SHUT_RDWR);
+ SAFE_CLOSE(accepted);
+ }
+ if (fork_socket_fd >= 0)
+ SAFE_CLOSE(fork_socket_fd);
+ if (socket_fd >= 0)
+ SAFE_CLOSE(socket_fd);
+}
+
+static struct tst_test test = {
+ .test_all = test_function,
+ .setup = setup,
+ .cleanup = cleanup,
+ .needs_tmpdir = 1,
+ .forks_child = 1,
+};
--
2.7.4
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