[PATCH 08/27] tests: checking decoding of crypto_user_alg CRYPTOCFGA_REPORT_LARVAL attributes

[JingPiao Chen]

* tests/nlattr_crypto_user_alg.c: New file.
* tests/gen_tests.in (nlattr_crypto_user_alg): New entry.
* tests/pure_executables.list: Add nlattr_crypto_user_alg.
* tests/.gitignore: Likewise.
---
 tests/.gitignore               |   1 +
 tests/gen_tests.in             |   1 +
 tests/nlattr_crypto_user_alg.c | 102 +++++++++++++++++++++++++++++++++++++++++
 tests/pure_executables.list    |   1 +
 4 files changed, 105 insertions(+)
 create mode 100644 tests/nlattr_crypto_user_alg.c

diff --git a/tests/.gitignore b/tests/.gitignore
index a75de08..47ecc6c 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -212,6 +212,7 @@ netlink_unix_diag
 netlink_xfrm
 newfstatat
 nlattr
+nlattr_crypto_user_alg
 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 4cea36b..6bd324e 100644
--- a/tests/gen_tests.in
+++ b/tests/gen_tests.in
@@ -195,6 +195,7 @@ netlink_selinux	+netlink_sock_diag.test
 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_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_crypto_user_alg.c b/tests/nlattr_crypto_user_alg.c
new file mode 100644
index 0000000..79822eb
--- /dev/null
+++ b/tests/nlattr_crypto_user_alg.c
@@ -0,0 +1,102 @@
+/*
+ * 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_CRYPTO_REPORT_LARVAL
+
+# include <stdio.h>
+# include <stdint.h>
+# include "test_nlattr.h"
+# include <linux/cryptouser.h>
+
+static void
+init_crypto_user_alg(struct nlmsghdr *const nlh, const unsigned int msg_len)
+{
+	SET_STRUCT(struct nlmsghdr, nlh,
+		.nlmsg_len = msg_len,
+		.nlmsg_type = CRYPTO_MSG_GETALG,
+		.nlmsg_flags = NLM_F_DUMP
+	);
+
+	struct crypto_user_alg *const alg = NLMSG_DATA(nlh);
+	SET_STRUCT(struct crypto_user_alg, alg,
+		.cru_name = "abcd",
+		.cru_driver_name = "efgh",
+		.cru_module_name = "ijkl",
+	);
+}
+
+static void
+print_crypto_user_alg(const unsigned int msg_len)
+{
+	printf("{len=%u, type=CRYPTO_MSG_GETALG"
+	       ", flags=NLM_F_DUMP, seq=0, pid=0}"
+	       ", {cru_name=\"abcd\", cru_driver_name=\"efgh\""
+	       ", cru_module_name=\"ijkl\", cru_type=0"
+	       ", cru_mask=0, cru_refcnt=0, cru_flags=0}",
+	       msg_len);
+}
+
+static void
+print_quoted_nul_string(const char *str, const size_t len)
+{
+	print_quoted_memory(str, len);
+	printf("...");
+}
+
+int
+main(void)
+{
+	skip_if_unavailable("/proc/self/fd/");
+
+	const int fd = create_nl_socket(NETLINK_CRYPTO);
+	const unsigned int hdrlen = sizeof(struct crypto_user_alg);
+	void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
+
+	static char pattern[4096];
+	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
+			
+	static const struct crypto_report_larval rl = {
+		.type = "abcd"
+	};
+	TEST_NLATTR_OBJECT_EX(fd, nlh0, hdrlen,
+			      init_crypto_user_alg, print_crypto_user_alg,
+			      CRYPTOCFGA_REPORT_LARVAL,
+			      pattern, rl, print_quoted_nul_string,
+			      printf("{type=\"abcd\"}"));
+
+	puts("+++ exited with 0 +++");
+	return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("HAVE_STRUCT_CRYPTO_REPORT_LARVAL");
+
+#endif
diff --git a/tests/pure_executables.list b/tests/pure_executables.list
index a0e4dcf..af02f5b 100755
--- a/tests/pure_executables.list
+++ b/tests/pure_executables.list
@@ -177,6 +177,7 @@ netlink_sock_diag
 netlink_xfrm
 newfstatat
 nlattr
+nlattr_crypto_user_alg
 nlattr_inet_diag_msg
 nlattr_inet_diag_req_compat
 nlattr_inet_diag_req_v2
-- 
2.7.4