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

 /*
  * Copyright (c) 2017 JingPiao Chen <[email protected]>
  * Copyright (c) 2017-2018 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 <arpa/inet.h>
 #include <net/if.h>
 #include <netinet/tcp.h>
 #include "test_nlattr.h"
 #include <linux/inet_diag.h>
 #include <linux/sock_diag.h>

 static const char * const sk_meminfo_strs[] = {
 	"SK_MEMINFO_RMEM_ALLOC",
 	"SK_MEMINFO_RCVBUF",
 	"SK_MEMINFO_WMEM_ALLOC",
 	"SK_MEMINFO_SNDBUF",
 	"SK_MEMINFO_FWD_ALLOC",
 	"SK_MEMINFO_WMEM_QUEUED",
 	"SK_MEMINFO_OPTMEM",
 	"SK_MEMINFO_BACKLOG",
 	"SK_MEMINFO_DROPS",
 };

 static const char address[] = "10.11.12.13";

 static void
 init_inet_diag_msg(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_DUMP
 	);

 	struct inet_diag_msg *const msg = NLMSG_DATA(nlh);
 	SET_STRUCT(struct inet_diag_msg, msg,
 		.idiag_family = AF_INET,
 		.idiag_state = TCP_LISTEN,
 		.id.idiag_if = ifindex_lo()
 	);

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

 static void
 print_inet_diag_msg(const unsigned int msg_len)
 {
 	printf("{len=%u, type=SOCK_DIAG_BY_FAMILY"
 	       ", flags=NLM_F_DUMP, seq=0, pid=0}, {idiag_family=AF_INET"
 	       ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
 	       ", 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]}"
 	       ", idiag_expires=0, idiag_rqueue=0, idiag_wqueue=0"
 	       ", idiag_uid=0, idiag_inode=0}",
 	       msg_len, address, address);
 }

 static void
 print_uint(const unsigned int *p, size_t i)
 {
 	if (i >= ARRAY_SIZE(sk_meminfo_strs))
 		printf("[%zu /* SK_MEMINFO_??? */", i);
 	else
 		printf("[%s", sk_meminfo_strs[i]);

 	printf("] = %u", *p);
 }

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

 	static const struct inet_diag_meminfo minfo = {
 		.idiag_rmem = 0xfadcacdb,
 		.idiag_wmem = 0xbdabcada,
 		.idiag_fmem = 0xbadbfafb,
 		.idiag_tmem = 0xfdacdadf
 	};
 	static const struct tcpvegas_info vegas = {
 		.tcpv_enabled = 0xfadcacdb,
 		.tcpv_rttcnt = 0xbdabcada,
 		.tcpv_rtt = 0xbadbfafb,
 		.tcpv_minrtt = 0xfdacdadf
 	};
 	static const struct tcp_dctcp_info dctcp = {
 		.dctcp_enabled = 0xfdac,
 		.dctcp_ce_state = 0xfadc,
 		.dctcp_alpha = 0xbdabcada,
 		.dctcp_ab_ecn = 0xbadbfafb,
 		.dctcp_ab_tot = 0xfdacdadf
 	};
 	static const struct tcp_bbr_info bbr = {
 		.bbr_bw_lo = 0xfdacdadf,
 		.bbr_bw_hi = 0xfadcacdb,
 		.bbr_min_rtt = 0xbdabcada,
 		.bbr_pacing_gain = 0xbadbfafb,
 		.bbr_cwnd_gain = 0xfdacdadf
 	};
 	static const uint32_t mem[] = { 0xaffacbad, 0xffadbcab };
 	static uint32_t bigmem[SK_MEMINFO_VARS + 1];
 	static const uint32_t mark = 0xabdfadca;
 	static const uint8_t shutdown = 0xcd;

 	const int fd = create_nl_socket(NETLINK_SOCK_DIAG);
 	const unsigned int hdrlen = sizeof(struct inet_diag_msg);
 	void *const nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
 					 NLA_HDRLEN +
 					 MAX(sizeof(bigmem), DEFAULT_STRLEN));

 	static char pattern[4096];
 	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);

 	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
 			   init_inet_diag_msg, print_inet_diag_msg,
 			   INET_DIAG_MEMINFO, pattern, minfo,
 			   PRINT_FIELD_U("{", minfo, idiag_rmem);
 			   PRINT_FIELD_U(", ", minfo, idiag_wmem);
 			   PRINT_FIELD_U(", ", minfo, idiag_fmem);
 			   PRINT_FIELD_U(", ", minfo, idiag_tmem);
 			   printf("}"));

 	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
 			   init_inet_diag_msg, print_inet_diag_msg,
 			   INET_DIAG_VEGASINFO, pattern, vegas,
 			   PRINT_FIELD_U("{", vegas, tcpv_enabled);
 			   PRINT_FIELD_U(", ", vegas, tcpv_rttcnt);
 			   PRINT_FIELD_U(", ", vegas, tcpv_rtt);
 			   PRINT_FIELD_U(", ", vegas, tcpv_minrtt);
 			   printf("}"));


 	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
 			   init_inet_diag_msg, print_inet_diag_msg,
 			   INET_DIAG_DCTCPINFO, pattern, dctcp,
 			   PRINT_FIELD_U("{", dctcp, dctcp_enabled);
 			   PRINT_FIELD_U(", ", dctcp, dctcp_ce_state);
 			   PRINT_FIELD_U(", ", dctcp, dctcp_alpha);
 			   PRINT_FIELD_U(", ", dctcp, dctcp_ab_ecn);
 			   PRINT_FIELD_U(", ", dctcp, dctcp_ab_tot);
 			   printf("}"));

 	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
 			   init_inet_diag_msg, print_inet_diag_msg,
 			   INET_DIAG_BBRINFO, pattern, bbr,
 			   PRINT_FIELD_X("{", bbr, bbr_bw_lo);
 			   PRINT_FIELD_X(", ", bbr, bbr_bw_hi);
 			   PRINT_FIELD_U(", ", bbr, bbr_min_rtt);
 			   PRINT_FIELD_U(", ", bbr, bbr_pacing_gain);
 			   PRINT_FIELD_U(", ", bbr, bbr_cwnd_gain);
 			   printf("}"));

 	TEST_NLATTR_ARRAY(fd, nlh0, hdrlen,
 			  init_inet_diag_msg, print_inet_diag_msg,
 			  INET_DIAG_SKMEMINFO, pattern, mem, print_uint);

 	memcpy(bigmem, pattern, sizeof(bigmem));

 	TEST_NLATTR_ARRAY(fd, nlh0, hdrlen,
 			  init_inet_diag_msg, print_inet_diag_msg,
 			  INET_DIAG_SKMEMINFO, pattern, bigmem, print_uint);

 	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
 			   init_inet_diag_msg, print_inet_diag_msg,
 			   INET_DIAG_MARK, pattern, mark,
 			   printf("%u", mark));

 	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
 			   init_inet_diag_msg, print_inet_diag_msg,
 			   INET_DIAG_CLASS_ID, pattern, mark,
 			   printf("%u", mark));

 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_msg, print_inet_diag_msg, INET_DIAG_SHUTDOWN,
 		    sizeof(shutdown), &shutdown, sizeof(shutdown),
 		    printf("%u", shutdown));

 	char *const str = tail_alloc(DEFAULT_STRLEN);
 	fill_memory_ex(str, DEFAULT_STRLEN, '0', 10);
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_msg, print_inet_diag_msg, INET_DIAG_CONG,
 		    DEFAULT_STRLEN, str, DEFAULT_STRLEN,
 		    printf("\"%.*s\"...", DEFAULT_STRLEN, str));
 	str[DEFAULT_STRLEN - 1] = '\0';
 	TEST_NLATTR(fd, nlh0, hdrlen,
 		    init_inet_diag_msg, print_inet_diag_msg, INET_DIAG_CONG,
 		    DEFAULT_STRLEN, str, DEFAULT_STRLEN,
 		    printf("\"%s\"", str));

 	puts("+++ exited with 0 +++");
 	return 0;
 }
	/*
	* Copyright (c) 2017 JingPiao Chen <[email protected]>
	* Copyright (c) 2017-2018 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 <arpa/inet.h>
	#include <net/if.h>
	#include <netinet/tcp.h>
	#include "test_nlattr.h"
	#include <linux/inet_diag.h>
	#include <linux/sock_diag.h>

	static const char * const sk_meminfo_strs[] = {
	"SK_MEMINFO_RMEM_ALLOC",
	"SK_MEMINFO_RCVBUF",
	"SK_MEMINFO_WMEM_ALLOC",
	"SK_MEMINFO_SNDBUF",
	"SK_MEMINFO_FWD_ALLOC",
	"SK_MEMINFO_WMEM_QUEUED",
	"SK_MEMINFO_OPTMEM",
	"SK_MEMINFO_BACKLOG",
	"SK_MEMINFO_DROPS",
	};

	static const char address[] = "10.11.12.13";

	static void
	init_inet_diag_msg(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_DUMP
	);

	struct inet_diag_msg *const msg = NLMSG_DATA(nlh);
	SET_STRUCT(struct inet_diag_msg, msg,
	.idiag_family = AF_INET,
	.idiag_state = TCP_LISTEN,
	.id.idiag_if = ifindex_lo()
	);

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

	static void
	print_inet_diag_msg(const unsigned int msg_len)
	{
	printf("{len=%u, type=SOCK_DIAG_BY_FAMILY"
	", flags=NLM_F_DUMP, seq=0, pid=0}, {idiag_family=AF_INET"
	", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
	", 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]}"
	", idiag_expires=0, idiag_rqueue=0, idiag_wqueue=0"
	", idiag_uid=0, idiag_inode=0}",
	msg_len, address, address);
	}

	static void
	print_uint(const unsigned int *p, size_t i)
	{
	if (i >= ARRAY_SIZE(sk_meminfo_strs))
	printf("[%zu /* SK_MEMINFO_??? */", i);
	else
	printf("[%s", sk_meminfo_strs[i]);

	printf("] = %u", *p);
	}

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

	static const struct inet_diag_meminfo minfo = {
	.idiag_rmem = 0xfadcacdb,
	.idiag_wmem = 0xbdabcada,
	.idiag_fmem = 0xbadbfafb,
	.idiag_tmem = 0xfdacdadf
	};
	static const struct tcpvegas_info vegas = {
	.tcpv_enabled = 0xfadcacdb,
	.tcpv_rttcnt = 0xbdabcada,
	.tcpv_rtt = 0xbadbfafb,
	.tcpv_minrtt = 0xfdacdadf
	};
	static const struct tcp_dctcp_info dctcp = {
	.dctcp_enabled = 0xfdac,
	.dctcp_ce_state = 0xfadc,
	.dctcp_alpha = 0xbdabcada,
	.dctcp_ab_ecn = 0xbadbfafb,
	.dctcp_ab_tot = 0xfdacdadf
	};
	static const struct tcp_bbr_info bbr = {
	.bbr_bw_lo = 0xfdacdadf,
	.bbr_bw_hi = 0xfadcacdb,
	.bbr_min_rtt = 0xbdabcada,
	.bbr_pacing_gain = 0xbadbfafb,
	.bbr_cwnd_gain = 0xfdacdadf
	};
	static const uint32_t mem[] = { 0xaffacbad, 0xffadbcab };
	static uint32_t bigmem[SK_MEMINFO_VARS + 1];
	static const uint32_t mark = 0xabdfadca;
	static const uint8_t shutdown = 0xcd;

	const int fd = create_nl_socket(NETLINK_SOCK_DIAG);
	const unsigned int hdrlen = sizeof(struct inet_diag_msg);
	void *const nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
	NLA_HDRLEN +
	MAX(sizeof(bigmem), DEFAULT_STRLEN));

	static char pattern[4096];
	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);

	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg,
	INET_DIAG_MEMINFO, pattern, minfo,
	PRINT_FIELD_U("{", minfo, idiag_rmem);
	PRINT_FIELD_U(", ", minfo, idiag_wmem);
	PRINT_FIELD_U(", ", minfo, idiag_fmem);
	PRINT_FIELD_U(", ", minfo, idiag_tmem);
	printf("}"));

	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg,
	INET_DIAG_VEGASINFO, pattern, vegas,
	PRINT_FIELD_U("{", vegas, tcpv_enabled);
	PRINT_FIELD_U(", ", vegas, tcpv_rttcnt);
	PRINT_FIELD_U(", ", vegas, tcpv_rtt);
	PRINT_FIELD_U(", ", vegas, tcpv_minrtt);
	printf("}"));


	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg,
	INET_DIAG_DCTCPINFO, pattern, dctcp,
	PRINT_FIELD_U("{", dctcp, dctcp_enabled);
	PRINT_FIELD_U(", ", dctcp, dctcp_ce_state);
	PRINT_FIELD_U(", ", dctcp, dctcp_alpha);
	PRINT_FIELD_U(", ", dctcp, dctcp_ab_ecn);
	PRINT_FIELD_U(", ", dctcp, dctcp_ab_tot);
	printf("}"));

	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg,
	INET_DIAG_BBRINFO, pattern, bbr,
	PRINT_FIELD_X("{", bbr, bbr_bw_lo);
	PRINT_FIELD_X(", ", bbr, bbr_bw_hi);
	PRINT_FIELD_U(", ", bbr, bbr_min_rtt);
	PRINT_FIELD_U(", ", bbr, bbr_pacing_gain);
	PRINT_FIELD_U(", ", bbr, bbr_cwnd_gain);
	printf("}"));

	TEST_NLATTR_ARRAY(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg,
	INET_DIAG_SKMEMINFO, pattern, mem, print_uint);

	memcpy(bigmem, pattern, sizeof(bigmem));

	TEST_NLATTR_ARRAY(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg,
	INET_DIAG_SKMEMINFO, pattern, bigmem, print_uint);

	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg,
	INET_DIAG_MARK, pattern, mark,
	printf("%u", mark));

	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg,
	INET_DIAG_CLASS_ID, pattern, mark,
	printf("%u", mark));

	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg, INET_DIAG_SHUTDOWN,
	sizeof(shutdown), &shutdown, sizeof(shutdown),
	printf("%u", shutdown));

	char *const str = tail_alloc(DEFAULT_STRLEN);
	fill_memory_ex(str, DEFAULT_STRLEN, '0', 10);
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg, INET_DIAG_CONG,
	DEFAULT_STRLEN, str, DEFAULT_STRLEN,
	printf("\"%.*s\"...", DEFAULT_STRLEN, str));
	str[DEFAULT_STRLEN - 1] = '\0';
	TEST_NLATTR(fd, nlh0, hdrlen,
	init_inet_diag_msg, print_inet_diag_msg, INET_DIAG_CONG,
	DEFAULT_STRLEN, str, DEFAULT_STRLEN,
	printf("\"%s\"", str));

	puts("+++ exited with 0 +++");
	return 0;
	}