tests/nlattr_inet_diag_req_v2.c - platform/external/strace - Git at Google

 /*
  * 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 <string.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>
 #include <net/if.h>
 #include <netinet/tcp.h>
 #include "test_nlattr.h"
 #include <linux/inet_diag.h>
 #include <linux/rtnetlink.h>
 #include <linux/sock_diag.h>

 static const char address[] = "10.11.12.13";
 static const unsigned int hdrlen = sizeof(struct inet_diag_req_v2);
 static void *nlh0;
 static char pattern[4096];

 static void
 init_inet_diag_req_v2(struct nlmsghdr *const nlh, const unsigned int msg_len)
 {
 	SET_STRUCT(struct nlmsghdr, nlh,
 		.nlmsg_len = msg_len,
 		.nlmsg_type = SOCK_DIAG_BY_FAMILY,
 		.nlmsg_flags = NLM_F_REQUEST
 	);

 	struct inet_diag_req_v2 *const req = NLMSG_DATA(nlh);
 	SET_STRUCT(struct inet_diag_req_v2, req,
 		.sdiag_family = AF_INET,
 		.idiag_ext = 1 << (INET_DIAG_CONG - 1),
 		.sdiag_protocol = IPPROTO_TCP,
 		.idiag_states = 1 << TCP_CLOSE,
 		.id.idiag_if = ifindex_lo()
 	);

 	if (!inet_pton(AF_INET, address, req->id.idiag_src) ||
 	    !inet_pton(AF_INET, address, req->id.idiag_dst))
 		perror_msg_and_skip("inet_pton");
 }

 static void
 print_inet_diag_req_v2(const unsigned int msg_len)
 {
 	printf("{len=%u, type=SOCK_DIAG_BY_FAMILY"
 	       ", flags=NLM_F_REQUEST, seq=0, pid=0}"
 	       ", {sdiag_family=AF_INET, sdiag_protocol=IPPROTO_TCP"
 	       ", idiag_ext=1<<(INET_DIAG_CONG-1)"
 	       ", idiag_states=1<<TCP_CLOSE"
 	       ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
 	       ", idiag_src=inet_addr(\"%s\")"
 	       ", idiag_dst=inet_addr(\"%s\")"
 	       ", idiag_if=" IFINDEX_LO_STR
 	       ", idiag_cookie=[0, 0]}}",
 	       msg_len, address, address);
 }

 static void
 test_inet_diag_bc_op(const int fd)
 {
 	static const struct inet_diag_bc_op op = {
 		.code = INET_DIAG_BC_S_COND,
 		.yes = 0xaf,
 		.no = 0xafcd
 	};
 	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
 			   init_inet_diag_req_v2, print_inet_diag_req_v2,
 			   INET_DIAG_REQ_BYTECODE, pattern, op,
 			   printf("{code=INET_DIAG_BC_S_COND");
 			   PRINT_FIELD_U(", ", op, yes);
 			   PRINT_FIELD_U(", ", op, no);
 			   printf("}"));
 }

 static void
 print_inet_diag_bc_op(const char *const code)
 {
 	printf("{{code=%s, yes=0, no=0}, ", code);
 }

 static void
 test_inet_diag_bc_s_cond(const int fd)
 {
 	static const struct inet_diag_bc_op op = {
 		.code = INET_DIAG_BC_S_COND,
 	};
 	static const struct inet_diag_hostcond cond = {
 		.family = AF_UNSPEC,
 		.prefix_len = 0xad,
 		.port = 0xadfa
 	};
 	char buf[sizeof(op) + sizeof(cond)];
 	memcpy(buf, &op, sizeof(op));

 	const unsigned int plen = sizeof(cond) - 1 > DEFAULT_STRLEN ?
 		sizeof(op) + DEFAULT_STRLEN : sizeof(buf) - 1;
 	memcpy(buf + sizeof(op), &pattern, sizeof(cond));
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    plen, buf, plen,
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
 		    print_quoted_hex(buf + sizeof(op), plen - sizeof(op));
 		    printf("}"));

 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf) - 1,
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
 		    printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op)));

 	memcpy(buf + sizeof(op), &cond, sizeof(cond));
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf),
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
 		    printf("{family=AF_UNSPEC");
 		    PRINT_FIELD_U(", ", cond, prefix_len);
 		    PRINT_FIELD_U(", ", cond, port);
 		    printf("}}"));
 }

 static void
 print_inet_diag_hostcond(const char *const family)
 {
 	printf("{family=%s, prefix_len=0, port=0, ", family);
 }

 static void
 test_in_addr(const int fd)
 {
 	static const struct inet_diag_bc_op op = {
 		.code = INET_DIAG_BC_S_COND,
 	};
 	static const struct inet_diag_hostcond cond = {
 		.family = AF_INET,
 	};
 	struct in_addr addr;
 	if (!inet_pton(AF_INET, address, &addr))
 		perror_msg_and_skip("inet_pton");

 	char buf[sizeof(op) + sizeof(cond) + sizeof(addr)];
 	memcpy(buf, &op, sizeof(op));
 	memcpy(buf + sizeof(op), &cond, sizeof(cond));

 	const unsigned int plen = sizeof(addr) - 1 > DEFAULT_STRLEN ?
 		sizeof(cond) + sizeof(cond) + DEFAULT_STRLEN : sizeof(buf) - 1;
 	memcpy(buf + sizeof(op) + sizeof(cond), &pattern, sizeof(addr));
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    plen, buf, plen,
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
 		    print_inet_diag_hostcond("AF_INET");
 		    printf("addr=");
 		    print_quoted_hex(pattern, plen - sizeof(op) - sizeof(cond));
 		    printf("}}"));

 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf) - 1,
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
 		    print_inet_diag_hostcond("AF_INET");
 		    printf("addr=%p}}",
 			   RTA_DATA(TEST_NLATTR_nla)
 			   + sizeof(op) + sizeof(cond)));

 	memcpy(buf + sizeof(op) + sizeof(cond), &addr, sizeof(addr));
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf),
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
 		    print_inet_diag_hostcond("AF_INET");
 		    printf("addr=inet_addr(\"%s\")}}", address));
 }

 static void
 test_in6_addr(const int fd)
 {
 	const char address6[] = "12:34:56:78:90:ab:cd:ef";
 	static const struct inet_diag_bc_op op = {
 		.code = INET_DIAG_BC_S_COND,
 	};
 	static const struct inet_diag_hostcond cond = {
 		.family = AF_INET6,
 	};
 	struct in6_addr addr;
 	if (!inet_pton(AF_INET6, address6, &addr))
 		perror_msg_and_skip("inet_pton");

 	char buf[sizeof(op) + sizeof(cond) + sizeof(addr)];
 	memcpy(buf, &op, sizeof(op));
 	memcpy(buf + sizeof(op), &cond, sizeof(cond));

 	const unsigned int plen = sizeof(addr) - 1 > DEFAULT_STRLEN ?
 		sizeof(cond) + sizeof(cond) + DEFAULT_STRLEN : sizeof(buf) - 1;
 	memcpy(buf + sizeof(op) + sizeof(cond), &pattern, sizeof(addr));
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    plen, buf, plen,
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
 		    print_inet_diag_hostcond("AF_INET6");
 		    printf("addr=");
 		    print_quoted_hex(pattern, plen - sizeof(op) - sizeof(cond));
 		    printf("}}"));

 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf) - 1,
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
 		    print_inet_diag_hostcond("AF_INET6");
 		    printf("addr=%p}}",
 			   RTA_DATA(TEST_NLATTR_nla)
 			   + sizeof(op) + sizeof(cond)));

 	memcpy(buf + sizeof(op) + sizeof(cond), &addr, sizeof(addr));
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf),
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
 		    print_inet_diag_hostcond("AF_INET6");
 		    printf("inet_pton(AF_INET6, \"%s\", &addr)}}", address6));
 }

 static void
 test_inet_diag_bc_dev_cond(const int fd)
 {
 	static const struct inet_diag_bc_op op = {
 		.code = INET_DIAG_BC_DEV_COND,
 	};
 	const uint32_t ifindex = ifindex_lo();
 	char buf[sizeof(op) + sizeof(ifindex)];
 	memcpy(buf, &op, sizeof(op));
 	memcpy(buf + sizeof(op), pattern, sizeof(ifindex));

 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf) - 1, buf, sizeof(buf) - 1,
 		    print_inet_diag_bc_op("INET_DIAG_BC_DEV_COND");
 		    print_quoted_hex(pattern, sizeof(ifindex) - 1);
 		    printf("}"));

 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf) - 1,
 		    print_inet_diag_bc_op("INET_DIAG_BC_DEV_COND");
 		    printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op)));

 	memcpy(buf + sizeof(op), &ifindex, sizeof(ifindex));
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf),
 		    print_inet_diag_bc_op("INET_DIAG_BC_DEV_COND");
 		    printf(IFINDEX_LO_STR "}"));
 }

 static void
 test_inet_diag_bc_s_le(const int fd)
 {
 	static const struct inet_diag_bc_op op[] = {
 		{
 			.code = INET_DIAG_BC_S_LE,
 		},
 		{
 			.code = INET_DIAG_BC_DEV_COND,
 			.yes = 0xaf,
 			.no = 0xafcd
 		}
 	};

 	char buf[sizeof(op)];
 	memcpy(buf, op, sizeof(op[0]));
 	memcpy(buf + sizeof(op[0]), pattern, sizeof(op[1]));

 	const unsigned int plen = sizeof(op[1]) - 1 > DEFAULT_STRLEN ?
 		sizeof(op[0]) + DEFAULT_STRLEN : sizeof(buf) - 1;
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    plen, buf, plen,
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_LE");
 		    print_quoted_hex(buf + sizeof(op[0]), plen - sizeof(op[0]));
 		    printf("}"));

 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf) - 1,
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_LE");
 		    printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op[0])));

 	memcpy(buf + sizeof(op[0]), &op[1], sizeof(op[1]));
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf),
 		    print_inet_diag_bc_op("INET_DIAG_BC_S_LE");
 		    printf("{code=INET_DIAG_BC_DEV_COND");
 		    PRINT_FIELD_U(", ", op[1], yes);
 		    PRINT_FIELD_U(", ", op[1], no);
 		    printf("}}"));
 };

 static void
 test_inet_diag_bc_mark_cond(const int fd)
 {
 	static const struct inet_diag_bc_op op = {
 		.code = INET_DIAG_BC_MARK_COND,
 	};
 	static const struct inet_diag_markcond markcond = {
 		.mark = 0xafbcafcd,
 		.mask = 0xbafaacda
 	};
 	char buf[sizeof(op) + sizeof(markcond)];
 	memcpy(buf, &op, sizeof(op));
 	memcpy(buf + sizeof(op), pattern, sizeof(markcond));

 	const unsigned int plen = sizeof(markcond) - 1 > DEFAULT_STRLEN ?
 		sizeof(markcond) + DEFAULT_STRLEN : sizeof(buf) - 1;
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    plen, buf, plen,
 		    print_inet_diag_bc_op("INET_DIAG_BC_MARK_COND");
 		    print_quoted_hex(buf + sizeof(op), plen - sizeof(op));
 		    printf("}"));

 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf) - 1,
 		    print_inet_diag_bc_op("INET_DIAG_BC_MARK_COND");
 		    printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op)));

 	memcpy(buf + sizeof(op), &markcond, sizeof(markcond));
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf),
 		    print_inet_diag_bc_op("INET_DIAG_BC_MARK_COND");
 		    PRINT_FIELD_U("{", markcond, mark);
 		    PRINT_FIELD_U(", ", markcond, mask);
 		    printf("}}"));
 }

 static void
 test_inet_diag_bc_nop(const int fd)
 {
 	static const struct inet_diag_bc_op op = {
 		.code = INET_DIAG_BC_AUTO,
 	};
 	char buf[sizeof(op) + 4];
 	memcpy(buf, &op, sizeof(op));
 	memcpy(buf + sizeof(op), pattern, 4);

 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_req_v2, print_inet_diag_req_v2,
 		    INET_DIAG_REQ_BYTECODE,
 		    sizeof(buf), buf, sizeof(buf),
 		    print_inet_diag_bc_op("INET_DIAG_BC_AUTO");
 		    print_quoted_hex(buf + sizeof(op),
 				     sizeof(buf) - sizeof(op));
 		    printf("}"));
 }

 int
 main(void)
 {
 	skip_if_unavailable("/proc/self/fd/");

 	int fd = create_nl_socket(NETLINK_SOCK_DIAG);
 	nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
 	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);

 	test_inet_diag_bc_op(fd);
 	test_inet_diag_bc_s_cond(fd);
 	test_in_addr(fd);
 	test_in6_addr(fd);
 	test_inet_diag_bc_dev_cond(fd);
 	test_inet_diag_bc_s_le(fd);
 	test_inet_diag_bc_mark_cond(fd);
 	test_inet_diag_bc_nop(fd);

 	printf("+++ exited with 0 +++\n");
 	return 0;
 }
	/*
	* 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 <string.h>
	#include <sys/socket.h>
	#include <arpa/inet.h>
	#include <net/if.h>
	#include <netinet/tcp.h>
	#include "test_nlattr.h"
	#include <linux/inet_diag.h>
	#include <linux/rtnetlink.h>
	#include <linux/sock_diag.h>

	static const char address[] = "10.11.12.13";
	static const unsigned int hdrlen = sizeof(struct inet_diag_req_v2);
	static void *nlh0;
	static char pattern[4096];

	static void
	init_inet_diag_req_v2(struct nlmsghdr *const nlh, const unsigned int msg_len)
	{
	SET_STRUCT(struct nlmsghdr, nlh,
	.nlmsg_len = msg_len,
	.nlmsg_type = SOCK_DIAG_BY_FAMILY,
	.nlmsg_flags = NLM_F_REQUEST
	);

	struct inet_diag_req_v2 *const req = NLMSG_DATA(nlh);
	SET_STRUCT(struct inet_diag_req_v2, req,
	.sdiag_family = AF_INET,
	.idiag_ext = 1 << (INET_DIAG_CONG - 1),
	.sdiag_protocol = IPPROTO_TCP,
	.idiag_states = 1 << TCP_CLOSE,
	.id.idiag_if = ifindex_lo()
	);

	if (!inet_pton(AF_INET, address, req->id.idiag_src) \|\|
	!inet_pton(AF_INET, address, req->id.idiag_dst))
	perror_msg_and_skip("inet_pton");
	}

	static void
	print_inet_diag_req_v2(const unsigned int msg_len)
	{
	printf("{len=%u, type=SOCK_DIAG_BY_FAMILY"
	", flags=NLM_F_REQUEST, seq=0, pid=0}"
	", {sdiag_family=AF_INET, sdiag_protocol=IPPROTO_TCP"
	", idiag_ext=1<<(INET_DIAG_CONG-1)"
	", idiag_states=1<<TCP_CLOSE"
	", id={idiag_sport=htons(0), idiag_dport=htons(0)"
	", idiag_src=inet_addr(\"%s\")"
	", idiag_dst=inet_addr(\"%s\")"
	", idiag_if=" IFINDEX_LO_STR
	", idiag_cookie=[0, 0]}}",
	msg_len, address, address);
	}

	static void
	test_inet_diag_bc_op(const int fd)
	{
	static const struct inet_diag_bc_op op = {
	.code = INET_DIAG_BC_S_COND,
	.yes = 0xaf,
	.no = 0xafcd
	};
	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE, pattern, op,
	printf("{code=INET_DIAG_BC_S_COND");
	PRINT_FIELD_U(", ", op, yes);
	PRINT_FIELD_U(", ", op, no);
	printf("}"));
	}

	static void
	print_inet_diag_bc_op(const char *const code)
	{
	printf("{{code=%s, yes=0, no=0}, ", code);
	}

	static void
	test_inet_diag_bc_s_cond(const int fd)
	{
	static const struct inet_diag_bc_op op = {
	.code = INET_DIAG_BC_S_COND,
	};
	static const struct inet_diag_hostcond cond = {
	.family = AF_UNSPEC,
	.prefix_len = 0xad,
	.port = 0xadfa
	};
	char buf[sizeof(op) + sizeof(cond)];
	memcpy(buf, &op, sizeof(op));

	const unsigned int plen = sizeof(cond) - 1 > DEFAULT_STRLEN ?
	sizeof(op) + DEFAULT_STRLEN : sizeof(buf) - 1;
	memcpy(buf + sizeof(op), &pattern, sizeof(cond));
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	plen, buf, plen,
	print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
	print_quoted_hex(buf + sizeof(op), plen - sizeof(op));
	printf("}"));

	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf) - 1,
	print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
	printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op)));

	memcpy(buf + sizeof(op), &cond, sizeof(cond));
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf),
	print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
	printf("{family=AF_UNSPEC");
	PRINT_FIELD_U(", ", cond, prefix_len);
	PRINT_FIELD_U(", ", cond, port);
	printf("}}"));
	}

	static void
	print_inet_diag_hostcond(const char *const family)
	{
	printf("{family=%s, prefix_len=0, port=0, ", family);
	}

	static void
	test_in_addr(const int fd)
	{
	static const struct inet_diag_bc_op op = {
	.code = INET_DIAG_BC_S_COND,
	};
	static const struct inet_diag_hostcond cond = {
	.family = AF_INET,
	};
	struct in_addr addr;
	if (!inet_pton(AF_INET, address, &addr))
	perror_msg_and_skip("inet_pton");

	char buf[sizeof(op) + sizeof(cond) + sizeof(addr)];
	memcpy(buf, &op, sizeof(op));
	memcpy(buf + sizeof(op), &cond, sizeof(cond));

	const unsigned int plen = sizeof(addr) - 1 > DEFAULT_STRLEN ?
	sizeof(cond) + sizeof(cond) + DEFAULT_STRLEN : sizeof(buf) - 1;
	memcpy(buf + sizeof(op) + sizeof(cond), &pattern, sizeof(addr));
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	plen, buf, plen,
	print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
	print_inet_diag_hostcond("AF_INET");
	printf("addr=");
	print_quoted_hex(pattern, plen - sizeof(op) - sizeof(cond));
	printf("}}"));

	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf) - 1,
	print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
	print_inet_diag_hostcond("AF_INET");
	printf("addr=%p}}",
	RTA_DATA(TEST_NLATTR_nla)
	+ sizeof(op) + sizeof(cond)));

	memcpy(buf + sizeof(op) + sizeof(cond), &addr, sizeof(addr));
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf),
	print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
	print_inet_diag_hostcond("AF_INET");
	printf("addr=inet_addr(\"%s\")}}", address));
	}

	static void
	test_in6_addr(const int fd)
	{
	const char address6[] = "12:34:56:78:90:ab:cd:ef";
	static const struct inet_diag_bc_op op = {
	.code = INET_DIAG_BC_S_COND,
	};
	static const struct inet_diag_hostcond cond = {
	.family = AF_INET6,
	};
	struct in6_addr addr;
	if (!inet_pton(AF_INET6, address6, &addr))
	perror_msg_and_skip("inet_pton");

	char buf[sizeof(op) + sizeof(cond) + sizeof(addr)];
	memcpy(buf, &op, sizeof(op));
	memcpy(buf + sizeof(op), &cond, sizeof(cond));

	const unsigned int plen = sizeof(addr) - 1 > DEFAULT_STRLEN ?
	sizeof(cond) + sizeof(cond) + DEFAULT_STRLEN : sizeof(buf) - 1;
	memcpy(buf + sizeof(op) + sizeof(cond), &pattern, sizeof(addr));
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	plen, buf, plen,
	print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
	print_inet_diag_hostcond("AF_INET6");
	printf("addr=");
	print_quoted_hex(pattern, plen - sizeof(op) - sizeof(cond));
	printf("}}"));

	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf) - 1,
	print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
	print_inet_diag_hostcond("AF_INET6");
	printf("addr=%p}}",
	RTA_DATA(TEST_NLATTR_nla)
	+ sizeof(op) + sizeof(cond)));

	memcpy(buf + sizeof(op) + sizeof(cond), &addr, sizeof(addr));
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf),
	print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
	print_inet_diag_hostcond("AF_INET6");
	printf("inet_pton(AF_INET6, \"%s\", &addr)}}", address6));
	}

	static void
	test_inet_diag_bc_dev_cond(const int fd)
	{
	static const struct inet_diag_bc_op op = {
	.code = INET_DIAG_BC_DEV_COND,
	};
	const uint32_t ifindex = ifindex_lo();
	char buf[sizeof(op) + sizeof(ifindex)];
	memcpy(buf, &op, sizeof(op));
	memcpy(buf + sizeof(op), pattern, sizeof(ifindex));

	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf) - 1, buf, sizeof(buf) - 1,
	print_inet_diag_bc_op("INET_DIAG_BC_DEV_COND");
	print_quoted_hex(pattern, sizeof(ifindex) - 1);
	printf("}"));

	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf) - 1,
	print_inet_diag_bc_op("INET_DIAG_BC_DEV_COND");
	printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op)));

	memcpy(buf + sizeof(op), &ifindex, sizeof(ifindex));
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf),
	print_inet_diag_bc_op("INET_DIAG_BC_DEV_COND");
	printf(IFINDEX_LO_STR "}"));
	}

	static void
	test_inet_diag_bc_s_le(const int fd)
	{
	static const struct inet_diag_bc_op op[] = {
	{
	.code = INET_DIAG_BC_S_LE,
	},
	{
	.code = INET_DIAG_BC_DEV_COND,
	.yes = 0xaf,
	.no = 0xafcd
	}
	};

	char buf[sizeof(op)];
	memcpy(buf, op, sizeof(op[0]));
	memcpy(buf + sizeof(op[0]), pattern, sizeof(op[1]));

	const unsigned int plen = sizeof(op[1]) - 1 > DEFAULT_STRLEN ?
	sizeof(op[0]) + DEFAULT_STRLEN : sizeof(buf) - 1;
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	plen, buf, plen,
	print_inet_diag_bc_op("INET_DIAG_BC_S_LE");
	print_quoted_hex(buf + sizeof(op[0]), plen - sizeof(op[0]));
	printf("}"));

	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf) - 1,
	print_inet_diag_bc_op("INET_DIAG_BC_S_LE");
	printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op[0])));

	memcpy(buf + sizeof(op[0]), &op[1], sizeof(op[1]));
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf),
	print_inet_diag_bc_op("INET_DIAG_BC_S_LE");
	printf("{code=INET_DIAG_BC_DEV_COND");
	PRINT_FIELD_U(", ", op[1], yes);
	PRINT_FIELD_U(", ", op[1], no);
	printf("}}"));
	};

	static void
	test_inet_diag_bc_mark_cond(const int fd)
	{
	static const struct inet_diag_bc_op op = {
	.code = INET_DIAG_BC_MARK_COND,
	};
	static const struct inet_diag_markcond markcond = {
	.mark = 0xafbcafcd,
	.mask = 0xbafaacda
	};
	char buf[sizeof(op) + sizeof(markcond)];
	memcpy(buf, &op, sizeof(op));
	memcpy(buf + sizeof(op), pattern, sizeof(markcond));

	const unsigned int plen = sizeof(markcond) - 1 > DEFAULT_STRLEN ?
	sizeof(markcond) + DEFAULT_STRLEN : sizeof(buf) - 1;
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	plen, buf, plen,
	print_inet_diag_bc_op("INET_DIAG_BC_MARK_COND");
	print_quoted_hex(buf + sizeof(op), plen - sizeof(op));
	printf("}"));

	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf) - 1,
	print_inet_diag_bc_op("INET_DIAG_BC_MARK_COND");
	printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op)));

	memcpy(buf + sizeof(op), &markcond, sizeof(markcond));
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf),
	print_inet_diag_bc_op("INET_DIAG_BC_MARK_COND");
	PRINT_FIELD_U("{", markcond, mark);
	PRINT_FIELD_U(", ", markcond, mask);
	printf("}}"));
	}

	static void
	test_inet_diag_bc_nop(const int fd)
	{
	static const struct inet_diag_bc_op op = {
	.code = INET_DIAG_BC_AUTO,
	};
	char buf[sizeof(op) + 4];
	memcpy(buf, &op, sizeof(op));
	memcpy(buf + sizeof(op), pattern, 4);

	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_req_v2, print_inet_diag_req_v2,
	INET_DIAG_REQ_BYTECODE,
	sizeof(buf), buf, sizeof(buf),
	print_inet_diag_bc_op("INET_DIAG_BC_AUTO");
	print_quoted_hex(buf + sizeof(op),
	sizeof(buf) - sizeof(op));
	printf("}"));
	}

	int
	main(void)
	{
	skip_if_unavailable("/proc/self/fd/");

	int fd = create_nl_socket(NETLINK_SOCK_DIAG);
	nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);

	test_inet_diag_bc_op(fd);
	test_inet_diag_bc_s_cond(fd);
	test_in_addr(fd);
	test_in6_addr(fd);
	test_inet_diag_bc_dev_cond(fd);
	test_inet_diag_bc_s_le(fd);
	test_inet_diag_bc_mark_cond(fd);
	test_inet_diag_bc_nop(fd);

	printf("+++ exited with 0 +++\n");
	return 0;
	}