tests: check decoding of NETLINK_ROUTE ifinfomsg attributes

* tests/nlattr_ifinfomsg.c: New file.
* tests/gen_tests.in (nlattr_ifinfomsg): New entry.
* tests/pure_executables.list: Add nlattr_ifinfomsg.
* tests/.gitignore: Likewise.

diff --git a/tests/.gitignore b/tests/.gitignore
index 16c2ca0781c1c0783a3e15e24fdcee8a7bdea567..a50b9f38d67fe2bbf627a15b5b4345d5dc688fe7 100644 (file)
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -218,6 +218,7 @@ netlink_xfrm
 newfstatat
 nlattr
 nlattr_crypto_user_alg
+nlattr_ifinfomsg
 nlattr_inet_diag_msg
 nlattr_inet_diag_req_compat
 nlattr_inet_diag_req_v2

diff --git a/tests/gen_tests.in b/tests/gen_tests.in
index 38f4638652e24319544b57c462cdbdbcda2c8e19..b129a293dd4082cafb9b1cffcad49dbb2cd36a8e 100644 (file)
--- a/tests/gen_tests.in
+++ b/tests/gen_tests.in
@@ -198,6 +198,7 @@ netlink_xfrm        +netlink_sock_diag.test
 newfstatat     -a32 -v -P stat.sample -P /dev/full
 nlattr         +netlink_sock_diag.test
 nlattr_crypto_user_alg         +netlink_sock_diag.test
+nlattr_ifinfomsg               +netlink_sock_diag.test
 nlattr_inet_diag_msg           +netlink_sock_diag.test
 nlattr_inet_diag_req_compat    +netlink_sock_diag.test
 nlattr_inet_diag_req_v2                +netlink_sock_diag.test

diff --git a/tests/nlattr_ifinfomsg.c b/tests/nlattr_ifinfomsg.c
new file mode 100644 (file)
index 0000000..7e42ed1
--- /dev/null
+++ b/tests/nlattr_ifinfomsg.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2017 JingPiao Chen <chenjingpiao@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"
+
+#include <stdio.h>
+#include "test_nlattr.h"
+
+#include <linux/if.h>
+#include <linux/if_arp.h>
+#include <linux/rtnetlink.h>
+
+static void
+init_ifinfomsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
+{
+       SET_STRUCT(struct nlmsghdr, nlh,
+               .nlmsg_len = msg_len,
+               .nlmsg_type = RTM_GETLINK,
+               .nlmsg_flags = NLM_F_DUMP
+       );
+
+       struct ifinfomsg *const msg = NLMSG_DATA(nlh);
+       SET_STRUCT(struct ifinfomsg, msg,
+               .ifi_family = AF_UNIX,
+               .ifi_type = ARPHRD_LOOPBACK,
+               .ifi_index = ifindex_lo(),
+               .ifi_flags = IFF_UP,
+       );
+}
+
+static void
+print_ifinfomsg(const unsigned int msg_len)
+{
+       printf("{len=%u, type=RTM_GETLINK, flags=NLM_F_DUMP"
+              ", seq=0, pid=0}, {ifi_family=AF_UNIX"
+              ", ifi_type=ARPHRD_LOOPBACK"
+              ", ifi_index=" IFINDEX_LO_STR
+              ", ifi_flags=IFF_UP, ifi_change=0}",
+              msg_len);
+}
+
+int
+main(void)
+{
+       skip_if_unavailable("/proc/self/fd/");
+
+       const int fd = create_nl_socket(NETLINK_ROUTE);
+       const unsigned int hdrlen = sizeof(struct ifinfomsg);
+       void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
+
+       static char pattern[4096];
+       fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
+
+       const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
+       char nla_type_str[256];
+       sprintf(nla_type_str, "%#x /* IFLA_??? */", nla_type);
+       TEST_NLATTR_(fd, nlh0, hdrlen,
+                    init_ifinfomsg, print_ifinfomsg,
+                    nla_type, nla_type_str,
+                    4, pattern, 4,
+                    print_quoted_hex(pattern, 4));
+
+       puts("+++ exited with 0 +++");
+       return 0;
+}

diff --git a/tests/pure_executables.list b/tests/pure_executables.list
index f0c4ddd01dae1afc5088498afca6a0af125406da..e1be87ca8edf5218693291d796ade54b18fb3b9a 100755 (executable)
--- a/tests/pure_executables.list
+++ b/tests/pure_executables.list
@@ -181,6 +181,7 @@ netlink_xfrm
 newfstatat
 nlattr
 nlattr_crypto_user_alg
+nlattr_ifinfomsg
 nlattr_inet_diag_msg
 nlattr_inet_diag_req_compat
 nlattr_inet_diag_req_v2