[PATCH 3/5] tests: check decoding of TCA_STATS2 netlink attribute of tcmsg
JingPiao Chen
chenjingpiao at gmail.com
Tue Sep 5 13:16:30 UTC 2017
* tests/nlattr_tc_stats.c: New file.
* tests/gen_tests.in (nlattr_tc_stats): New entry.
* tests/pure_executables.list: Add nlattr_tc_stats.
* tests/.gitignore: Likewise.
---
tests/.gitignore | 1 +
tests/gen_tests.in | 1 +
tests/nlattr_tc_stats.c | 151 ++++++++++++++++++++++++++++++++++++++++++++
tests/pure_executables.list | 1 +
4 files changed, 154 insertions(+)
create mode 100644 tests/nlattr_tc_stats.c
diff --git a/tests/.gitignore b/tests/.gitignore
index 3d1631e..c6bfc02 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -240,6 +240,7 @@ nlattr_packet_diag_msg
nlattr_rtgenmsg
nlattr_rtmsg
nlattr_smc_diag_msg
+nlattr_tc_stats
nlattr_tcamsg
nlattr_tcmsg
nlattr_unix_diag_msg
diff --git a/tests/gen_tests.in b/tests/gen_tests.in
index 8592e28..117f0a1 100644
--- a/tests/gen_tests.in
+++ b/tests/gen_tests.in
@@ -219,6 +219,7 @@ nlattr_packet_diag_msg +netlink_sock_diag-v.sh
nlattr_rtgenmsg +netlink_sock_diag.test
nlattr_rtmsg +netlink_sock_diag.test
nlattr_smc_diag_msg +netlink_sock_diag.test
+nlattr_tc_stats +netlink_sock_diag.test
nlattr_tcamsg +netlink_sock_diag.test
nlattr_tcmsg +netlink_sock_diag.test
nlattr_unix_diag_msg +netlink_sock_diag.test
diff --git a/tests/nlattr_tc_stats.c b/tests/nlattr_tc_stats.c
new file mode 100644
index 0000000..dd76cc7
--- /dev/null
+++ b/tests/nlattr_tc_stats.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2017 JingPiao Chen <chenjingpiao at gmail.com>
+ * 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.
+ */
+
+#include "tests.h"
+
+#ifdef HAVE_STRUCT_GNET_STATS_BASIC
+
+# include <stdio.h>
+# include <stddef.h>
+# include "test_nlattr.h"
+# include <linux/gen_stats.h>
+# include <linux/rtnetlink.h>
+
+const unsigned int hdrlen = sizeof(struct tcmsg);
+
+static void
+init_tcmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
+{
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = RTM_GETQDISC,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ struct tcmsg *const msg = NLMSG_DATA(nlh);
+ SET_STRUCT(struct tcmsg, msg,
+ .tcm_family = AF_UNIX,
+ .tcm_ifindex = ifindex_lo()
+ );
+
+ struct nlattr *const nla = NLMSG_ATTR(nlh, sizeof(*msg));
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = msg_len - NLMSG_SPACE(hdrlen),
+ .nla_type = TCA_STATS2
+ );
+}
+
+static void
+print_tcmsg(const unsigned int msg_len)
+{
+ printf("{len=%u, type=RTM_GETQDISC, flags=NLM_F_DUMP"
+ ", seq=0, pid=0}, {tcm_family=AF_UNIX"
+ ", tcm_ifindex=" IFINDEX_LO_STR
+ ", tcm_handle=0, tcm_parent=0, tcm_info=0}"
+ ", {{nla_len=%u, nla_type=TCA_STATS2}",
+ msg_len, msg_len - NLMSG_SPACE(hdrlen));
+}
+
+int
+main(void)
+{
+ skip_if_unavailable("/proc/self/fd/");
+
+ const int fd = create_nl_socket(NETLINK_ROUTE);
+ void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
+
+ static char pattern[4096];
+ fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
+
+ static const struct gnet_stats_basic sb = {
+ .bytes = 0xabcdebdafefeadeb,
+ .packets = 0xbdcdeabf
+ };
+ char buf[offsetofend(struct gnet_stats_basic, packets)];
+ memcpy(buf, &sb, sizeof(buf));
+ TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_tcmsg, print_tcmsg,
+ TCA_STATS_BASIC, pattern, buf,
+ PRINT_FIELD_U("{", sb, bytes);
+ PRINT_FIELD_U(", ", sb, packets);
+ printf("}"));
+
+#ifdef HAVE_STRUCT_GNET_STATS_RATE_EST
+ static const struct gnet_stats_rate_est est = {
+ .bps = 0xebcdaebd,
+ .pps = 0xabdceade,
+ };
+ TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_tcmsg, print_tcmsg,
+ TCA_STATS_RATE_EST, pattern, est,
+ PRINT_FIELD_U("{", est, bps);
+ PRINT_FIELD_U(", ", est, pps);
+ printf("}"));
+#endif
+
+#ifdef HAVE_STRUCT_GNET_STATS_QUEUE
+ static const struct gnet_stats_queue qstats = {
+ .qlen = 0xabcdeabd,
+ .backlog = 0xbcdaebad,
+ .drops = 0xcdbeaedb,
+ .requeues = 0xdebaefab,
+ .overlimits = 0xefaebade
+ };
+ TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_tcmsg, print_tcmsg,
+ TCA_STATS_QUEUE, pattern, qstats,
+ PRINT_FIELD_U("{", qstats, qlen);
+ PRINT_FIELD_U(", ", qstats, backlog);
+ PRINT_FIELD_U(", ", qstats, drops);
+ PRINT_FIELD_U(", ", qstats, requeues);
+ PRINT_FIELD_U(", ", qstats, overlimits);
+ printf("}"));
+#endif
+
+#ifdef HAVE_STRUCT_GNET_STATS_RATE_EST64
+ static const struct gnet_stats_rate_est64 est64 = {
+ .bps = 0xacbdcdefafecaebf,
+ .pps = 0xcdabeabdfeabceaf
+ };
+ TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_tcmsg, print_tcmsg,
+ TCA_STATS_RATE_EST64, pattern, est64,
+ PRINT_FIELD_U("{", est64, bps);
+ PRINT_FIELD_U(", ", est64, pps);
+ printf("}"));
+#endif
+
+ puts("+++ exited with 0 +++");
+ return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("HAVE_STRUCT_GNET_STATS_BASIC")
+
+#endif
diff --git a/tests/pure_executables.list b/tests/pure_executables.list
index dade57b..2878d3a 100755
--- a/tests/pure_executables.list
+++ b/tests/pure_executables.list
@@ -202,6 +202,7 @@ nlattr_packet_diag_msg
nlattr_rtgenmsg
nlattr_rtmsg
nlattr_smc_diag_msg
+nlattr_tc_stats
nlattr_tcamsg
nlattr_tcmsg
nlattr_unix_diag_msg
--
2.7.4
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