[PATCH 4/6] tests: check decoding of NETLINK_NETFILTER message types
JingPiao
chenjingpiao at gmail.com
Mon Jun 5 00:11:23 UTC 2017
From: JingPiao Chen <chenjingpiao at gmail.com>
* tests/netlink_netfilter.c: New file.
* tests/netlink_netfilter.test: New test.
* tests/Makefile.am (DECODER_TESTS): Add netlink_netfilter.test.
* tests/pure_executables.list: Add netlink_netfilter.
* tests/.gitignore: Likewise.
---
tests/.gitignore | 1 +
tests/Makefile.am | 1 +
tests/netlink_netfilter.c | 83 ++++++++++++++++++++++++++++++++++++++++++++
tests/netlink_netfilter.test | 31 +++++++++++++++++
tests/pure_executables.list | 1 +
5 files changed, 117 insertions(+)
create mode 100644 tests/netlink_netfilter.c
create mode 100755 tests/netlink_netfilter.test
diff --git a/tests/.gitignore b/tests/.gitignore
index 8428c66..e4903aa 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -199,6 +199,7 @@ net-yy-netlink
net-yy-unix
netlink_audit
netlink_inet_diag
+netlink_netfilter
netlink_netlink_diag
netlink_protocol
netlink_route
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 762fcd2..4a56bd9 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -202,6 +202,7 @@ DECODER_TESTS = \
net-yy-unix.test \
net.test \
netlink_audit.test \
+ netlink_netfilter.test \
netlink_route.test \
netlink_sock_diag.test \
nsyscalls.test \
diff --git a/tests/netlink_netfilter.c b/tests/netlink_netfilter.c
new file mode 100644
index 0000000..abc9c4d
--- /dev/null
+++ b/tests/netlink_netfilter.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2017 JingPiao Chen <chenjingpiao at gmail.com>
+ * 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 <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netlink.h>
+
+static void
+test_nlmsg_type(const int fd)
+{
+ long rc;
+ struct nlmsghdr nlh = {
+ .nlmsg_len = sizeof(nlh),
+ .nlmsg_type = NFNL_MSG_BATCH_BEGIN,
+ .nlmsg_flags = NLM_F_REQUEST,
+ };
+
+ rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
+ printf("sendto(%d, {{len=%u, type=NFNL_MSG_BATCH_BEGIN"
+ ", flags=NLM_F_REQUEST, seq=0, pid=0}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
+
+ nlh.nlmsg_type = (NFNL_SUBSYS_CTNETLINK << 8) | NFNL_MSG_BATCH_BEGIN,
+ rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
+ printf("sendto(%d, {{len=%u, type=NFNL_SUBSYS_CTNETLINK<<8|%u"
+ ", flags=NLM_F_REQUEST, seq=0, pid=0}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, nlh.nlmsg_len, NFNL_MSG_BATCH_BEGIN,
+ (unsigned) sizeof(nlh), sprintrc(rc));
+}
+
+int main(void)
+{
+ skip_if_unavailable("/proc/self/fd/");
+
+ struct sockaddr_nl addr;
+ socklen_t len = sizeof(addr);
+ int fd;
+
+ memset(&addr, 0, sizeof(addr));
+ addr.nl_family = AF_NETLINK;
+
+ if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER)) == -1)
+ perror_msg_and_skip("socket AF_NETLINK");
+
+ if (bind(fd, (struct sockaddr *) &addr, len))
+ perror_msg_and_skip("bind");
+
+ test_nlmsg_type(fd);
+
+ printf("+++ exited with 0 +++\n");
+
+ return 0;
+}
diff --git a/tests/netlink_netfilter.test b/tests/netlink_netfilter.test
new file mode 100755
index 0000000..d798d15
--- /dev/null
+++ b/tests/netlink_netfilter.test
@@ -0,0 +1,31 @@
+#!/bin/sh
+#
+# Copyright (c) 2017 The strace developers.
+# 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.
+
+. "${srcdir=.}/init.sh"
+
+run_prog ../netlink_netlink_diag
+run_strace_match_diff -e trace=sendto
diff --git a/tests/pure_executables.list b/tests/pure_executables.list
index 8f0ec6e..ffe0d17 100755
--- a/tests/pure_executables.list
+++ b/tests/pure_executables.list
@@ -166,6 +166,7 @@ net-yy-inet
net-yy-netlink
net-yy-unix
netlink_audit
+netlink_netfilter
netlink_protocol
netlink_route
netlink_sock_diag
--
2.7.4
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