embedaddon/iperf/src/iperf_api.c - diff

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Diff for /embedaddon/iperf/src/iperf_api.c between versions 1.1 and 1.1.1.3

version 1.1, 2016/10/18 13:28:18	version 1.1.1.3, 2023/09/27 11:14:54
Line 1	Line 1
/*	/*
* iperf, Copyright (c) 2014, 2015, 2016, The Regents of the University of	* iperf, Copyright (c) 2014-2022, The Regents of the University of
* California, through Lawrence Berkeley National Laboratory (subject	* California, through Lawrence Berkeley National Laboratory (subject
* to receipt of any required approvals from the U.S. Dept. of	* to receipt of any required approvals from the U.S. Dept. of
* Energy). All rights reserved.	* Energy). All rights reserved.
Line 24	Line 24
* This code is distributed under a BSD style license, see the LICENSE file	* This code is distributed under a BSD style license, see the LICENSE file
* for complete information.	* for complete information.
*/	*/
#define _GNU_SOURCE	#ifndef _GNU_SOURCE
	# define _GNU_SOURCE
	#endif
#define __USE_GNU	#define __USE_GNU

#include "iperf_config.h"	#include "iperf_config.h"
Line 32	Line 34
#include <stdio.h>	#include <stdio.h>
#include <stdlib.h>	#include <stdlib.h>
#include <string.h>	#include <string.h>
	#include <time.h>
#include <getopt.h>	#include <getopt.h>
#include <errno.h>	#include <errno.h>
#include <signal.h>	#include <signal.h>
Line 43	Line 46
#include <netinet/in.h>	#include <netinet/in.h>
#include <arpa/inet.h>	#include <arpa/inet.h>
#include <netdb.h>	#include <netdb.h>
#include <pthread.h>
#ifdef HAVE_STDINT_H	#ifdef HAVE_STDINT_H
#include <stdint.h>	#include <stdint.h>
#endif	#endif
#include <netinet/tcp.h>
#include <sys/time.h>	#include <sys/time.h>
#include <sys/resource.h>	#include <sys/resource.h>
#include <sys/mman.h>	#include <sys/mman.h>
Line 55	Line 56
#include <sched.h>	#include <sched.h>
#include <setjmp.h>	#include <setjmp.h>
#include <stdarg.h>	#include <stdarg.h>
	#include <math.h>

#if defined(HAVE_CPUSET_SETAFFINITY)	#if defined(HAVE_CPUSET_SETAFFINITY)
#include <sys/param.h>	#include <sys/param.h>
#include <sys/cpuset.h>	#include <sys/cpuset.h>
#endif /* HAVE_CPUSET_SETAFFINITY */	#endif /* HAVE_CPUSET_SETAFFINITY */

	#if defined(__CYGWIN__) \|\| defined(_WIN32) \|\| defined(_WIN64) \|\| defined(__WINDOWS__)
	#define CPU_SETSIZE __CPU_SETSIZE
	#endif /* __CYGWIN__, _WIN32, _WIN64, __WINDOWS__ */

	#if defined(HAVE_SETPROCESSAFFINITYMASK)
	#include <Windows.h>
	#endif /* HAVE_SETPROCESSAFFINITYMASK */

#include "net.h"	#include "net.h"
#include "iperf.h"	#include "iperf.h"
#include "iperf_api.h"	#include "iperf_api.h"
#include "iperf_udp.h"	#include "iperf_udp.h"
#include "iperf_tcp.h"	#include "iperf_tcp.h"
#if defined(HAVE_SCTP)	#if defined(HAVE_SCTP_H)
#include "iperf_sctp.h"	#include "iperf_sctp.h"
#endif /* HAVE_SCTP */	#endif /* HAVE_SCTP_H */
#include "timer.h"	#include "timer.h"

#include "cjson.h"	#include "cjson.h"
#include "units.h"	#include "units.h"
#include "tcp_window_size.h"
#include "iperf_util.h"	#include "iperf_util.h"
#include "iperf_locale.h"	#include "iperf_locale.h"
#include "version.h"	#include "version.h"
	#if defined(HAVE_SSL)
	#include <openssl/bio.h>
	#include <openssl/err.h>
	#include "iperf_auth.h"
	#endif /* HAVE_SSL */

/* Forwards. */	/* Forwards. */
static int send_parameters(struct iperf_test *test);	static int send_parameters(struct iperf_test *test);
Line 100 usage()	Line 114 usage()


void	void
usage_long()	usage_long(FILE *f)
{	{
fprintf(stderr, usage_longstr, UDP_RATE / (1024*1024), DURATION, DEFAULT_TCP_BLKSIZE / 1024, DEFAULT_UDP_BLKSIZE / 1024);	fprintf(f, usage_longstr, DEFAULT_NO_MSG_RCVD_TIMEOUT, UDP_RATE / (1024*1024), DEFAULT_PACING_TIMER, DURATION, DEFAULT_TCP_BLKSIZE / 1024, DEFAULT_UDP_BLKSIZE);
}	}


void warning(char *str)	void warning(const char *str)
{	{
fprintf(stderr, "warning: %s\n", str);	fprintf(stderr, "warning: %s\n", str);
}	}
Line 127 iperf_get_control_socket(struct iperf_test *ipt)	Line 141 iperf_get_control_socket(struct iperf_test *ipt)
}	}

int	int
	iperf_get_control_socket_mss(struct iperf_test *ipt)
	{
	return ipt->ctrl_sck_mss;
	}

	int
iperf_get_test_omit(struct iperf_test *ipt)	iperf_get_test_omit(struct iperf_test *ipt)
{	{
return ipt->omit;	return ipt->omit;
Line 144 iperf_get_test_rate(struct iperf_test *ipt)	Line 164 iperf_get_test_rate(struct iperf_test *ipt)
return ipt->settings->rate;	return ipt->settings->rate;
}	}

	uint64_t
	iperf_get_test_bitrate_limit(struct iperf_test *ipt)
	{
	return ipt->settings->bitrate_limit;
	}

	double
	iperf_get_test_bitrate_limit_interval(struct iperf_test *ipt)
	{
	return ipt->settings->bitrate_limit_interval;
	}

int	int
	iperf_get_test_bitrate_limit_stats_per_interval(struct iperf_test *ipt)
	{
	return ipt->settings->bitrate_limit_stats_per_interval;
	}

	uint64_t
	iperf_get_test_fqrate(struct iperf_test *ipt)
	{
	return ipt->settings->fqrate;
	}

	int
	iperf_get_test_pacing_timer(struct iperf_test *ipt)
	{
	return ipt->settings->pacing_timer;
	}

	uint64_t
	iperf_get_test_bytes(struct iperf_test *ipt)
	{
	return (uint64_t) ipt->settings->bytes;
	}

	uint64_t
	iperf_get_test_blocks(struct iperf_test *ipt)
	{
	return (uint64_t) ipt->settings->blocks;
	}

	int
iperf_get_test_burst(struct iperf_test *ipt)	iperf_get_test_burst(struct iperf_test *ipt)
{	{
return ipt->settings->burst;	return ipt->settings->burst;
Line 163 iperf_get_test_reverse(struct iperf_test *ipt)	Line 225 iperf_get_test_reverse(struct iperf_test *ipt)
}	}

int	int
	iperf_get_test_bidirectional(struct iperf_test *ipt)
	{
	return ipt->bidirectional;
	}

	int
iperf_get_test_blksize(struct iperf_test *ipt)	iperf_get_test_blksize(struct iperf_test *ipt)
{	{
return ipt->settings->blksize;	return ipt->settings->blksize;
Line 199 iperf_get_test_num_streams(struct iperf_test *ipt)	Line 267 iperf_get_test_num_streams(struct iperf_test *ipt)
}	}

int	int
	iperf_get_test_timestamps(struct iperf_test *ipt)
	{
	return ipt->timestamps;
	}

	const char *
	iperf_get_test_timestamp_format(struct iperf_test *ipt)
	{
	return ipt->timestamp_format;
	}

	int
	iperf_get_test_repeating_payload(struct iperf_test *ipt)
	{
	return ipt->repeating_payload;
	}

	int
	iperf_get_test_bind_port(struct iperf_test *ipt)
	{
	return ipt->bind_port;
	}

	int
iperf_get_test_server_port(struct iperf_test *ipt)	iperf_get_test_server_port(struct iperf_test *ipt)
{	{
return ipt->server_port;	return ipt->server_port;
Line 258 iperf_get_test_bind_address(struct iperf_test *ipt)	Line 350 iperf_get_test_bind_address(struct iperf_test *ipt)
return ipt->bind_address;	return ipt->bind_address;
}	}

	char *
	iperf_get_test_bind_dev(struct iperf_test *ipt)
	{
	return ipt->bind_dev;
	}

int	int
iperf_get_test_udp_counters_64bit(struct iperf_test *ipt)	iperf_get_test_udp_counters_64bit(struct iperf_test *ipt)
{	{
Line 271 iperf_get_test_one_off(struct iperf_test *ipt)	Line 369 iperf_get_test_one_off(struct iperf_test *ipt)
}	}

int	int
iperf_get_no_fq_socket_pacing(struct iperf_test *ipt)	iperf_get_test_tos(struct iperf_test *ipt)
{	{
return ipt->no_fq_socket_pacing;	return ipt->settings->tos;
}	}

	char *
	iperf_get_test_extra_data(struct iperf_test *ipt)
	{
	return ipt->extra_data;
	}

	static const char iperf_version[] = IPERF_VERSION;
	char *
	iperf_get_iperf_version(void)
	{
	return (char*)iperf_version;
	}

	int
	iperf_get_test_no_delay(struct iperf_test *ipt)
	{
	return ipt->no_delay;
	}

	int
	iperf_get_test_connect_timeout(struct iperf_test *ipt)
	{
	return ipt->settings->connect_timeout;
	}

	int
	iperf_get_test_idle_timeout(struct iperf_test *ipt)
	{
	return ipt->settings->idle_timeout;
	}

	int
	iperf_get_dont_fragment(struct iperf_test *ipt)
	{
	return ipt->settings->dont_fragment;
	}

	struct iperf_time*
	iperf_get_test_rcv_timeout(struct iperf_test *ipt)
	{
	return &ipt->settings->rcv_timeout;
	}

	char*
	iperf_get_test_congestion_control(struct iperf_test* ipt)
	{
	return ipt->congestion;
	}

	int
	iperf_get_test_mss(struct iperf_test *ipt)
	{
	return ipt->settings->mss;
	}

	int
	iperf_get_mapped_v4(struct iperf_test* ipt)
	{
	return ipt->mapped_v4;
	}

/************ Setter routines for some fields inside iperf_test ***********/	/************ Setter routines for some fields inside iperf_test ***********/

void	void
Line 327 iperf_set_test_blksize(struct iperf_test *ipt, int blk	Line 486 iperf_set_test_blksize(struct iperf_test *ipt, int blk
}	}

void	void
	iperf_set_test_logfile(struct iperf_test ipt, const char logfile)
	{
	ipt->logfile = strdup(logfile);
	}

	void
iperf_set_test_rate(struct iperf_test *ipt, uint64_t rate)	iperf_set_test_rate(struct iperf_test *ipt, uint64_t rate)
{	{
ipt->settings->rate = rate;	ipt->settings->rate = rate;
}	}

void	void
	iperf_set_test_bitrate_limit_maximum(struct iperf_test *ipt, uint64_t total_rate)
	{
	ipt->settings->bitrate_limit = total_rate;
	}

	void
	iperf_set_test_bitrate_limit_interval(struct iperf_test *ipt, uint64_t bitrate_limit_interval)
	{
	ipt->settings->bitrate_limit_interval = bitrate_limit_interval;
	}

	void
	iperf_set_test_bitrate_limit_stats_per_interval(struct iperf_test *ipt, uint64_t bitrate_limit_stats_per_interval)
	{
	ipt->settings->bitrate_limit_stats_per_interval = bitrate_limit_stats_per_interval;
	}

	void
	iperf_set_test_fqrate(struct iperf_test *ipt, uint64_t fqrate)
	{
	ipt->settings->fqrate = fqrate;
	}

	void
	iperf_set_test_pacing_timer(struct iperf_test *ipt, int pacing_timer)
	{
	ipt->settings->pacing_timer = pacing_timer;
	}

	void
	iperf_set_test_bytes(struct iperf_test *ipt, uint64_t bytes)
	{
	ipt->settings->bytes = (iperf_size_t) bytes;
	}

	void
	iperf_set_test_blocks(struct iperf_test *ipt, uint64_t blocks)
	{
	ipt->settings->blocks = (iperf_size_t) blocks;
	}

	void
iperf_set_test_burst(struct iperf_test *ipt, int burst)	iperf_set_test_burst(struct iperf_test *ipt, int burst)
{	{
ipt->settings->burst = burst;	ipt->settings->burst = burst;
}	}

void	void
iperf_set_test_server_port(struct iperf_test *ipt, int server_port)	iperf_set_test_bind_port(struct iperf_test *ipt, int bind_port)
{	{
ipt->server_port = server_port;	ipt->bind_port = bind_port;
}	}

void	void
	iperf_set_test_server_port(struct iperf_test *ipt, int srv_port)
	{
	ipt->server_port = srv_port;
	}

	void
iperf_set_test_socket_bufsize(struct iperf_test *ipt, int socket_bufsize)	iperf_set_test_socket_bufsize(struct iperf_test *ipt, int socket_bufsize)
{	{
ipt->settings->socket_bufsize = socket_bufsize;	ipt->settings->socket_bufsize = socket_bufsize;
Line 356 iperf_set_test_num_streams(struct iperf_test *ipt, int	Line 569 iperf_set_test_num_streams(struct iperf_test *ipt, int
ipt->num_streams = num_streams;	ipt->num_streams = num_streams;
}	}

	void
	iperf_set_test_repeating_payload(struct iperf_test *ipt, int repeating_payload)
	{
	ipt->repeating_payload = repeating_payload;
	}

	void
	iperf_set_test_timestamps(struct iperf_test *ipt, int timestamps)
	{
	ipt->timestamps = timestamps;
	}

	void
	iperf_set_test_timestamp_format(struct iperf_test ipt, const char tf)
	{
	ipt->timestamp_format = strdup(tf);
	}

	void
	iperf_set_mapped_v4(struct iperf_test *ipt, const int val)
	{
	ipt->mapped_v4 = val;
	}

	void
	iperf_set_on_new_stream_callback(struct iperf_test* ipt, void (*callback)())
	{
	ipt->on_new_stream = callback;
	}

	void
	iperf_set_on_test_start_callback(struct iperf_test* ipt, void (*callback)())
	{
	ipt->on_test_start = callback;
	}

	void
	iperf_set_on_test_connect_callback(struct iperf_test* ipt, void (*callback)())
	{
	ipt->on_connect = callback;
	}

	void
	iperf_set_on_test_finish_callback(struct iperf_test* ipt, void (*callback)())
	{
	ipt->on_test_finish = callback;
	}

static void	static void
check_sender_has_retransmits(struct iperf_test *ipt)	check_sender_has_retransmits(struct iperf_test *ipt)
{	{
if (ipt->sender && ipt->protocol->id == Ptcp && has_tcpinfo_retransmits())	if (ipt->mode != RECEIVER && ipt->protocol->id == Ptcp && has_tcpinfo_retransmits())
ipt->sender_has_retransmits = 1;	ipt->sender_has_retransmits = 1;
else	else
ipt->sender_has_retransmits = 0;	ipt->sender_has_retransmits = 0;
Line 369 void	Line 630 void
iperf_set_test_role(struct iperf_test *ipt, char role)	iperf_set_test_role(struct iperf_test *ipt, char role)
{	{
ipt->role = role;	ipt->role = role;
if (role == 'c')	if (!ipt->reverse) {
ipt->sender = 1;	if (ipt->bidirectional)
else if (role == 's')	ipt->mode = BIDIRECTIONAL;
ipt->sender = 0;	else if (role == 'c')
if (ipt->reverse)	ipt->mode = SENDER;
ipt->sender = ! ipt->sender;	else if (role == 's')
	ipt->mode = RECEIVER;
	} else {
	if (role == 'c')
	ipt->mode = RECEIVER;
	else if (role == 's')
	ipt->mode = SENDER;
	}
check_sender_has_retransmits(ipt);	check_sender_has_retransmits(ipt);
}	}

void	void
iperf_set_test_server_hostname(struct iperf_test ipt, char server_hostname)	iperf_set_test_server_hostname(struct iperf_test ipt, const char server_hostname)
{	{
ipt->server_hostname = strdup(server_hostname);	ipt->server_hostname = strdup(server_hostname);
}	}

void	void
iperf_set_test_template(struct iperf_test ipt, char tmp_template)	iperf_set_test_template(struct iperf_test ipt, const char tmp_template)
{	{
ipt->tmp_template = strdup(tmp_template);	ipt->tmp_template = strdup(tmp_template);
}	}
Line 394 void	Line 662 void
iperf_set_test_reverse(struct iperf_test *ipt, int reverse)	iperf_set_test_reverse(struct iperf_test *ipt, int reverse)
{	{
ipt->reverse = reverse;	ipt->reverse = reverse;
if (ipt->reverse)	if (!ipt->reverse) {
ipt->sender = ! ipt->sender;	if (ipt->role == 'c')
	ipt->mode = SENDER;
	else if (ipt->role == 's')
	ipt->mode = RECEIVER;
	} else {
	if (ipt->role == 'c')
	ipt->mode = RECEIVER;
	else if (ipt->role == 's')
	ipt->mode = SENDER;
	}
check_sender_has_retransmits(ipt);	check_sender_has_retransmits(ipt);
}	}

Line 429 iperf_set_test_unit_format(struct iperf_test *ipt, cha	Line 706 iperf_set_test_unit_format(struct iperf_test *ipt, cha
ipt->settings->unit_format = unit_format;	ipt->settings->unit_format = unit_format;
}	}

	#if defined(HAVE_SSL)
void	void
iperf_set_test_bind_address(struct iperf_test ipt, char bind_address)	iperf_set_test_client_username(struct iperf_test ipt, const char client_username)
{	{
ipt->bind_address = strdup(bind_address);	ipt->settings->client_username = strdup(client_username);
}	}

void	void
	iperf_set_test_client_password(struct iperf_test ipt, const char client_password)
	{
	ipt->settings->client_password = strdup(client_password);
	}

	void
	iperf_set_test_client_rsa_pubkey(struct iperf_test ipt, const char client_rsa_pubkey_base64)
	{
	ipt->settings->client_rsa_pubkey = load_pubkey_from_base64(client_rsa_pubkey_base64);
	}

	void
	iperf_set_test_server_authorized_users(struct iperf_test ipt, const char server_authorized_users)
	{
	ipt->server_authorized_users = strdup(server_authorized_users);
	}

	void
	iperf_set_test_server_skew_threshold(struct iperf_test *ipt, int server_skew_threshold)
	{
	ipt->server_skew_threshold = server_skew_threshold;
	}

	void
	iperf_set_test_server_rsa_privkey(struct iperf_test ipt, const char server_rsa_privkey_base64)
	{
	ipt->server_rsa_private_key = load_privkey_from_base64(server_rsa_privkey_base64);
	}
	#endif // HAVE_SSL

	void
	iperf_set_test_bind_address(struct iperf_test ipt, const char bnd_address)
	{
	ipt->bind_address = strdup(bnd_address);
	}

	void
	iperf_set_test_bind_dev(struct iperf_test ipt, const char bnd_dev)
	{
	ipt->bind_dev = strdup(bnd_dev);
	}

	void
iperf_set_test_udp_counters_64bit(struct iperf_test *ipt, int udp_counters_64bit)	iperf_set_test_udp_counters_64bit(struct iperf_test *ipt, int udp_counters_64bit)
{	{
ipt->udp_counters_64bit = udp_counters_64bit;	ipt->udp_counters_64bit = udp_counters_64bit;
Line 448 iperf_set_test_one_off(struct iperf_test *ipt, int one	Line 769 iperf_set_test_one_off(struct iperf_test *ipt, int one
}	}

void	void
iperf_set_no_fq_socket_pacing(struct iperf_test *ipt, int no_pacing)	iperf_set_test_tos(struct iperf_test *ipt, int tos)
{	{
ipt->no_fq_socket_pacing = no_pacing;	ipt->settings->tos = tos;
}	}

	void
	iperf_set_test_extra_data(struct iperf_test ipt, const char dat)
	{
	ipt->extra_data = strdup(dat);
	}

	void
	iperf_set_test_bidirectional(struct iperf_test* ipt, int bidirectional)
	{
	ipt->bidirectional = bidirectional;
	if (bidirectional)
	ipt->mode = BIDIRECTIONAL;
	else
	iperf_set_test_reverse(ipt, ipt->reverse);
	}

	void
	iperf_set_test_no_delay(struct iperf_test* ipt, int no_delay)
	{
	ipt->no_delay = no_delay;
	}

	void
	iperf_set_test_connect_timeout(struct iperf_test* ipt, int ct)
	{
	ipt->settings->connect_timeout = ct;
	}

	void
	iperf_set_test_idle_timeout(struct iperf_test* ipt, int to)
	{
	ipt->settings->idle_timeout = to;
	}

	void
	iperf_set_dont_fragment(struct iperf_test* ipt, int dnf)
	{
	ipt->settings->dont_fragment = dnf;
	}

	void
	iperf_set_test_rcv_timeout(struct iperf_test* ipt, struct iperf_time* to)
	{
	ipt->settings->rcv_timeout.secs = to->secs;
	ipt->settings->rcv_timeout.usecs = to->usecs;
	}

	void
	iperf_set_test_congestion_control(struct iperf_test* ipt, char* cc)
	{
	ipt->congestion = strdup(cc);
	}

	void
	iperf_set_test_mss(struct iperf_test *ipt, int mss)
	{
	ipt->settings->mss = mss;
	}

/******************** Get/set test protocol structure *********************/	/******************** Get/set test protocol structure *********************/

struct protocol *	struct protocol *
Line 501 void	Line 881 void
iperf_on_test_start(struct iperf_test *test)	iperf_on_test_start(struct iperf_test *test)
{	{
if (test->json_output) {	if (test->json_output) {
cJSON_AddItemToObject(test->json_start, "test_start", iperf_json_printf("protocol: %s num_streams: %d blksize: %d omit: %d duration: %d bytes: %d blocks: %d reverse: %d", test->protocol->name, (int64_t) test->num_streams, (int64_t) test->settings->blksize, (int64_t) test->omit, (int64_t) test->duration, (int64_t) test->settings->bytes, (int64_t) test->settings->blocks, test->reverse?(int64_t)1:(int64_t)0));	cJSON_AddItemToObject(test->json_start, "test_start", iperf_json_printf("protocol: %s num_streams: %d blksize: %d omit: %d duration: %d bytes: %d blocks: %d reverse: %d tos: %d target_bitrate: %d bidir: %d fqrate: %d", test->protocol->name, (int64_t) test->num_streams, (int64_t) test->settings->blksize, (int64_t) test->omit, (int64_t) test->duration, (int64_t) test->settings->bytes, (int64_t) test->settings->blocks, test->reverse?(int64_t)1:(int64_t)0, (int64_t) test->settings->tos, (int64_t) test->settings->rate, (int64_t) test->bidirectional, (uint64_t) test->settings->fqrate));
} else {	} else {
if (test->verbose) {	if (test->verbose) {
if (test->settings->bytes)	if (test->settings->bytes)
iprintf(test, test_start_bytes, test->protocol->name, test->num_streams, test->settings->blksize, test->omit, test->settings->bytes);	iperf_printf(test, test_start_bytes, test->protocol->name, test->num_streams, test->settings->blksize, test->omit, test->settings->bytes, test->settings->tos);
else if (test->settings->blocks)	else if (test->settings->blocks)
iprintf(test, test_start_blocks, test->protocol->name, test->num_streams, test->settings->blksize, test->omit, test->settings->blocks);	iperf_printf(test, test_start_blocks, test->protocol->name, test->num_streams, test->settings->blksize, test->omit, test->settings->blocks, test->settings->tos);
else	else
iprintf(test, test_start_time, test->protocol->name, test->num_streams, test->settings->blksize, test->omit, test->duration);	iperf_printf(test, test_start_time, test->protocol->name, test->num_streams, test->settings->blksize, test->omit, test->duration, test->settings->tos);
}	}
}	}
}	}
Line 518 iperf_on_test_start(struct iperf_test *test)	Line 898 iperf_on_test_start(struct iperf_test *test)
** old IPv4 format, which is easier on the eyes of network veterans.	** old IPv4 format, which is easier on the eyes of network veterans.
**	**
** If the v6 address is not v4-mapped it is left alone.	** If the v6 address is not v4-mapped it is left alone.
	**
	** Returns 1 if the v6 address is v4-mapped, 0 otherwise.
*/	*/
static void	static int
mapped_v4_to_regular_v4(char *str)	mapped_v4_to_regular_v4(char *str)
{	{
char *prefix = "::ffff:";	char *prefix = "::ffff:";
Line 529 mapped_v4_to_regular_v4(char *str)	Line 911 mapped_v4_to_regular_v4(char *str)
if (strncmp(str, prefix, prefix_len) == 0) {	if (strncmp(str, prefix, prefix_len) == 0) {
int str_len = strlen(str);	int str_len = strlen(str);
memmove(str, str + prefix_len, str_len - prefix_len + 1);	memmove(str, str + prefix_len, str_len - prefix_len + 1);
	return 1;
}	}
	return 0;
}	}

void	void
iperf_on_connect(struct iperf_test *test)	iperf_on_connect(struct iperf_test *test)
{	{
time_t now_secs;	time_t now_secs;
const char* rfc1123_fmt = "%a, %d %b %Y %H:%M:%S GMT";	const char* rfc1123_fmt = "%a, %d %b %Y %H:%M:%S %Z";
char now_str[100];	char now_str[100];
char ipr[INET6_ADDRSTRLEN];	char ipr[INET6_ADDRSTRLEN];
int port;	int port;
Line 544 iperf_on_connect(struct iperf_test *test)	Line 928 iperf_on_connect(struct iperf_test *test)
struct sockaddr_in *sa_inP;	struct sockaddr_in *sa_inP;
struct sockaddr_in6 *sa_in6P;	struct sockaddr_in6 *sa_in6P;
socklen_t len;	socklen_t len;
int opt;

now_secs = time((time_t*) 0);	now_secs = time((time_t*) 0);
(void) strftime(now_str, sizeof(now_str), rfc1123_fmt, gmtime(&now_secs));	(void) strftime(now_str, sizeof(now_str), rfc1123_fmt, gmtime(&now_secs));
if (test->json_output)	if (test->json_output)
cJSON_AddItemToObject(test->json_start, "timestamp", iperf_json_printf("time: %s timesecs: %d", now_str, (int64_t) now_secs));	cJSON_AddItemToObject(test->json_start, "timestamp", iperf_json_printf("time: %s timesecs: %d", now_str, (int64_t) now_secs));
else if (test->verbose)	else if (test->verbose)
iprintf(test, report_time, now_str);	iperf_printf(test, report_time, now_str);

if (test->role == 'c') {	if (test->role == 'c') {
if (test->json_output)	if (test->json_output)
cJSON_AddItemToObject(test->json_start, "connecting_to", iperf_json_printf("host: %s port: %d", test->server_hostname, (int64_t) test->server_port));	cJSON_AddItemToObject(test->json_start, "connecting_to", iperf_json_printf("host: %s port: %d", test->server_hostname, (int64_t) test->server_port));
else {	else {
iprintf(test, report_connecting, test->server_hostname, test->server_port);	iperf_printf(test, report_connecting, test->server_hostname, test->server_port);
if (test->reverse)	if (test->reverse)
iprintf(test, report_reverse, test->server_hostname);	iperf_printf(test, report_reverse, test->server_hostname);
}	}
} else {	} else {
len = sizeof(sa);	len = sizeof(sa);
Line 573 iperf_on_connect(struct iperf_test *test)	Line 956 iperf_on_connect(struct iperf_test *test)
inet_ntop(AF_INET6, &sa_in6P->sin6_addr, ipr, sizeof(ipr));	inet_ntop(AF_INET6, &sa_in6P->sin6_addr, ipr, sizeof(ipr));
port = ntohs(sa_in6P->sin6_port);	port = ntohs(sa_in6P->sin6_port);
}	}
mapped_v4_to_regular_v4(ipr);	if (mapped_v4_to_regular_v4(ipr)) {
	iperf_set_mapped_v4(test, 1);
	}
if (test->json_output)	if (test->json_output)
cJSON_AddItemToObject(test->json_start, "accepted_connection", iperf_json_printf("host: %s port: %d", ipr, (int64_t) port));	cJSON_AddItemToObject(test->json_start, "accepted_connection", iperf_json_printf("host: %s port: %d", ipr, (int64_t) port));
else	else
iprintf(test, report_accepted, ipr, port);	iperf_printf(test, report_accepted, ipr, port);
}	}
if (test->json_output) {	if (test->json_output) {
cJSON_AddStringToObject(test->json_start, "cookie", test->cookie);	cJSON_AddStringToObject(test->json_start, "cookie", test->cookie);
Line 585 iperf_on_connect(struct iperf_test *test)	Line 970 iperf_on_connect(struct iperf_test *test)
if (test->settings->mss)	if (test->settings->mss)
cJSON_AddNumberToObject(test->json_start, "tcp_mss", test->settings->mss);	cJSON_AddNumberToObject(test->json_start, "tcp_mss", test->settings->mss);
else {	else {
len = sizeof(opt);	cJSON_AddNumberToObject(test->json_start, "tcp_mss_default", test->ctrl_sck_mss);
getsockopt(test->ctrl_sck, IPPROTO_TCP, TCP_MAXSEG, &opt, &len);
cJSON_AddNumberToObject(test->json_start, "tcp_mss_default", opt);
}	}
}	}
	// Duplicate to make sure it appears on all output
	cJSON_AddNumberToObject(test->json_start, "target_bitrate", test->settings->rate);
	cJSON_AddNumberToObject(test->json_start, "fq_rate", test->settings->fqrate);
} else if (test->verbose) {	} else if (test->verbose) {
iprintf(test, report_cookie, test->cookie);	iperf_printf(test, report_cookie, test->cookie);
if (test->protocol->id == SOCK_STREAM) {	if (test->protocol->id == SOCK_STREAM) {
if (test->settings->mss)	if (test->settings->mss)
iprintf(test, " TCP MSS: %d\n", test->settings->mss);	iperf_printf(test, " TCP MSS: %d\n", test->settings->mss);
else {	else {
len = sizeof(opt);	iperf_printf(test, " TCP MSS: %d (default)\n", test->ctrl_sck_mss);
getsockopt(test->ctrl_sck, IPPROTO_TCP, TCP_MAXSEG, &opt, &len);
iprintf(test, " TCP MSS: %d (default)\n", opt);
}	}
}	}
	if (test->settings->rate)
	iperf_printf(test, " Target Bitrate: %"PRIu64"\n", test->settings->rate);
}	}
}	}

Line 613 iperf_on_test_finish(struct iperf_test *test)	Line 998 iperf_on_test_finish(struct iperf_test *test)

/******************************************************************************/	/******************************************************************************/

	/*
	* iperf_parse_hostname tries to split apart a string into hostname %
	* interface parts, which are returned in p and p1, if they
	* exist. If the %interface part is detected, and it's not an IPv6
	* link local address, then returns 1, else returns 0.
	*
	* Modifies the string pointed to by spec in-place due to the use of
	* strtok(3). The caller should strdup(3) or otherwise copy the string
	* if an unmodified copy is needed.
	*/
int	int
	iperf_parse_hostname(struct iperf_test test, char spec, char p, char p1) {
	struct in6_addr ipv6_addr;

	// Format is <addr>[%<device>]
	if ((*p = strtok(spec, "%")) != NULL &&
	(*p1 = strtok(NULL, "%")) != NULL) {

	/*
	* If an IPv6 literal for a link-local address, then
	* tell the caller to leave the "%" in the hostname.
	*/
	if (inet_pton(AF_INET6, *p, &ipv6_addr) == 1 &&
	IN6_IS_ADDR_LINKLOCAL(&ipv6_addr)) {
	if (test->debug) {
	iperf_printf(test, "IPv6 link-local address literal detected\n");
	}
	return 0;
	}
	/*
	* Other kind of address or FQDN. The interface name after
	* "%" is a shorthand for --bind-dev.
	*/
	else {
	if (test->debug) {
	iperf_printf(test, "p %s p1 %s\n", p, p1);
	}
	return 1;
	}
	}
	else {
	if (test->debug) {
	iperf_printf(test, "noparse\n");
	}
	return 0;
	}
	}

	int
iperf_parse_arguments(struct iperf_test test, int argc, char *argv)	iperf_parse_arguments(struct iperf_test test, int argc, char *argv)
{	{
static struct option longopts[] =	static struct option longopts[] =
Line 629 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1062 iperf_parse_arguments(struct iperf_test *test, int arg
{"server", no_argument, NULL, 's'},	{"server", no_argument, NULL, 's'},
{"client", required_argument, NULL, 'c'},	{"client", required_argument, NULL, 'c'},
{"udp", no_argument, NULL, 'u'},	{"udp", no_argument, NULL, 'u'},
	{"bitrate", required_argument, NULL, 'b'},
{"bandwidth", required_argument, NULL, 'b'},	{"bandwidth", required_argument, NULL, 'b'},
	{"server-bitrate-limit", required_argument, NULL, OPT_SERVER_BITRATE_LIMIT},
{"time", required_argument, NULL, 't'},	{"time", required_argument, NULL, 't'},
{"bytes", required_argument, NULL, 'n'},	{"bytes", required_argument, NULL, 'n'},
{"blockcount", required_argument, NULL, 'k'},	{"blockcount", required_argument, NULL, 'k'},
{"length", required_argument, NULL, 'l'},	{"length", required_argument, NULL, 'l'},
{"parallel", required_argument, NULL, 'P'},	{"parallel", required_argument, NULL, 'P'},
{"reverse", no_argument, NULL, 'R'},	{"reverse", no_argument, NULL, 'R'},
	{"bidir", no_argument, NULL, OPT_BIDIRECTIONAL},
{"window", required_argument, NULL, 'w'},	{"window", required_argument, NULL, 'w'},
{"bind", required_argument, NULL, 'B'},	{"bind", required_argument, NULL, 'B'},
	#if defined(HAVE_SO_BINDTODEVICE)
	{"bind-dev", required_argument, NULL, OPT_BIND_DEV},
	#endif /* HAVE_SO_BINDTODEVICE */
{"cport", required_argument, NULL, OPT_CLIENT_PORT},	{"cport", required_argument, NULL, OPT_CLIENT_PORT},
{"set-mss", required_argument, NULL, 'M'},	{"set-mss", required_argument, NULL, 'M'},
{"no-delay", no_argument, NULL, 'N'},	{"no-delay", no_argument, NULL, 'N'},
{"version4", no_argument, NULL, '4'},	{"version4", no_argument, NULL, '4'},
{"version6", no_argument, NULL, '6'},	{"version6", no_argument, NULL, '6'},
{"tos", required_argument, NULL, 'S'},	{"tos", required_argument, NULL, 'S'},
	{"dscp", required_argument, NULL, OPT_DSCP},
	{"extra-data", required_argument, NULL, OPT_EXTRA_DATA},
#if defined(HAVE_FLOWLABEL)	#if defined(HAVE_FLOWLABEL)
{"flowlabel", required_argument, NULL, 'L'},	{"flowlabel", required_argument, NULL, 'L'},
#endif /* HAVE_FLOWLABEL */	#endif /* HAVE_FLOWLABEL */
{"zerocopy", no_argument, NULL, 'Z'},	{"zerocopy", no_argument, NULL, 'Z'},
{"omit", required_argument, NULL, 'O'},	{"omit", required_argument, NULL, 'O'},
{"file", required_argument, NULL, 'F'},	{"file", required_argument, NULL, 'F'},
	{"repeating-payload", no_argument, NULL, OPT_REPEATING_PAYLOAD},
	{"timestamps", optional_argument, NULL, OPT_TIMESTAMPS},
#if defined(HAVE_CPU_AFFINITY)	#if defined(HAVE_CPU_AFFINITY)
{"affinity", required_argument, NULL, 'A'},	{"affinity", required_argument, NULL, 'A'},
#endif /* HAVE_CPU_AFFINITY */	#endif /* HAVE_CPU_AFFINITY */
Line 658 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1101 iperf_parse_arguments(struct iperf_test *test, int arg
{"congestion", required_argument, NULL, 'C'},	{"congestion", required_argument, NULL, 'C'},
{"linux-congestion", required_argument, NULL, 'C'},	{"linux-congestion", required_argument, NULL, 'C'},
#endif /* HAVE_TCP_CONGESTION */	#endif /* HAVE_TCP_CONGESTION */
#if defined(HAVE_SCTP)	#if defined(HAVE_SCTP_H)
{"sctp", no_argument, NULL, OPT_SCTP},	{"sctp", no_argument, NULL, OPT_SCTP},
{"nstreams", required_argument, NULL, OPT_NUMSTREAMS},	{"nstreams", required_argument, NULL, OPT_NUMSTREAMS},
{"xbind", required_argument, NULL, 'X'},	{"xbind", required_argument, NULL, 'X'},
#endif	#endif
{"pidfile", required_argument, NULL, 'I'},	{"pidfile", required_argument, NULL, 'I'},
{"logfile", required_argument, NULL, OPT_LOGFILE},	{"logfile", required_argument, NULL, OPT_LOGFILE},
	{"forceflush", no_argument, NULL, OPT_FORCEFLUSH},
{"get-server-output", no_argument, NULL, OPT_GET_SERVER_OUTPUT},	{"get-server-output", no_argument, NULL, OPT_GET_SERVER_OUTPUT},
{"udp-counters-64bit", no_argument, NULL, OPT_UDP_COUNTERS_64BIT},	{"udp-counters-64bit", no_argument, NULL, OPT_UDP_COUNTERS_64BIT},
{"no-fq-socket-pacing", no_argument, NULL, OPT_NO_FQ_SOCKET_PACING},	{"no-fq-socket-pacing", no_argument, NULL, OPT_NO_FQ_SOCKET_PACING},
{"debug", no_argument, NULL, 'd'},	#if defined(HAVE_DONT_FRAGMENT)
	{"dont-fragment", no_argument, NULL, OPT_DONT_FRAGMENT},
	#endif /* HAVE_DONT_FRAGMENT */
	#if defined(HAVE_SSL)
	{"username", required_argument, NULL, OPT_CLIENT_USERNAME},
	{"rsa-public-key-path", required_argument, NULL, OPT_CLIENT_RSA_PUBLIC_KEY},
	{"rsa-private-key-path", required_argument, NULL, OPT_SERVER_RSA_PRIVATE_KEY},
	{"authorized-users-path", required_argument, NULL, OPT_SERVER_AUTHORIZED_USERS},
	{"time-skew-threshold", required_argument, NULL, OPT_SERVER_SKEW_THRESHOLD},
	#endif /* HAVE_SSL */
	{"fq-rate", required_argument, NULL, OPT_FQ_RATE},
	{"pacing-timer", required_argument, NULL, OPT_PACING_TIMER},
	{"connect-timeout", required_argument, NULL, OPT_CONNECT_TIMEOUT},
	{"idle-timeout", required_argument, NULL, OPT_IDLE_TIMEOUT},
	{"rcv-timeout", required_argument, NULL, OPT_RCV_TIMEOUT},
	{"snd-timeout", required_argument, NULL, OPT_SND_TIMEOUT},
	{"debug", optional_argument, NULL, 'd'},
{"help", no_argument, NULL, 'h'},	{"help", no_argument, NULL, 'h'},
{NULL, 0, NULL, 0}	{NULL, 0, NULL, 0}
};	};
int flag;	int flag;
	int portno;
int blksize;	int blksize;
int server_flag, client_flag, rate_flag, duration_flag;	int server_flag, client_flag, rate_flag, duration_flag, rcv_timeout_flag, snd_timeout_flag;
char *endptr;	char *endptr;
#if defined(HAVE_CPU_AFFINITY)	#if defined(HAVE_CPU_AFFINITY)
char* comma;	char* comma;
#endif /* HAVE_CPU_AFFINITY */	#endif /* HAVE_CPU_AFFINITY */
char* slash;	char* slash;
	char p, p1;
struct xbind_entry *xbe;	struct xbind_entry *xbe;
	double farg;
	int rcv_timeout_in = 0;

blksize = 0;	blksize = 0;
server_flag = client_flag = rate_flag = duration_flag = 0;	server_flag = client_flag = rate_flag = duration_flag = rcv_timeout_flag = snd_timeout_flag =0;
	#if defined(HAVE_SSL)
	char client_username = NULL, client_rsa_public_key = NULL, *server_rsa_private_key = NULL;
	#endif /* HAVE_SSL */

while ((flag = getopt_long(argc, argv, "p:f:i:D1VJvsc:ub:t:n:k:l:P:Rw:B:M:N46S:L:ZO:F:A:T:C:dI:hX:", longopts, NULL)) != -1) {	while ((flag = getopt_long(argc, argv, "p:f:i:D1VJvsc:ub:t:n:k:l:P:Rw:B:M:N46S:L:ZO:F:A:T:C:dI:hX:", longopts, NULL)) != -1) {
switch (flag) {	switch (flag) {
case 'p':	case 'p':
test->server_port = atoi(optarg);	portno = atoi(optarg);
	if (portno < 1 \|\| portno > 65535) {
	i_errno = IEBADPORT;
	return -1;
	}
	test->server_port = portno;
break;	break;
case 'f':	case 'f':
test->settings->unit_format = *optarg;	if (!optarg) {
	i_errno = IEBADFORMAT;
	return -1;
	}
	test->settings->unit_format = *optarg;
	if (test->settings->unit_format == 'k' \|\|
	test->settings->unit_format == 'K' \|\|
	test->settings->unit_format == 'm' \|\|
	test->settings->unit_format == 'M' \|\|
	test->settings->unit_format == 'g' \|\|
	test->settings->unit_format == 'G' \|\|
	test->settings->unit_format == 't' \|\|
	test->settings->unit_format == 'T') {
	break;
	}
	else {
	i_errno = IEBADFORMAT;
	return -1;
	}
break;	break;
case 'i':	case 'i':
/* XXX: could potentially want separate stat collection and reporting intervals,	/* XXX: could potentially want separate stat collection and reporting intervals,
Line 716 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1207 iperf_parse_arguments(struct iperf_test *test, int arg
test->json_output = 1;	test->json_output = 1;
break;	break;
case 'v':	case 'v':
printf("%s\n%s\n%s\n", version, get_system_info(),	printf("%s (cJSON %s)\n%s\n%s\n", version, cJSON_Version(), get_system_info(),
get_optional_features());	get_optional_features());
exit(0);	exit(0);
case 's':	case 's':
Line 733 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1224 iperf_parse_arguments(struct iperf_test *test, int arg
}	}
iperf_set_test_role(test, 'c');	iperf_set_test_role(test, 'c');
iperf_set_test_server_hostname(test, optarg);	iperf_set_test_server_hostname(test, optarg);

	if (iperf_parse_hostname(test, optarg, &p, &p1)) {
	#if defined(HAVE_SO_BINDTODEVICE)
	/* Get rid of the hostname we saved earlier. */
	free(iperf_get_test_server_hostname(test));
	iperf_set_test_server_hostname(test, p);
	iperf_set_test_bind_dev(test, p1);
	#else /* HAVE_SO_BINDTODEVICE */
	i_errno = IEBINDDEVNOSUPPORT;
	return -1;
	#endif /* HAVE_SO_BINDTODEVICE */
	}
break;	break;
case 'u':	case 'u':
set_protocol(test, Pudp);	set_protocol(test, Pudp);
client_flag = 1;	client_flag = 1;
break;	break;
case OPT_SCTP:	case OPT_SCTP:
#if defined(HAVE_SCTP)	#if defined(HAVE_SCTP_H)
set_protocol(test, Psctp);	set_protocol(test, Psctp);
client_flag = 1;	client_flag = 1;
#else /* HAVE_SCTP */	break;
	#else /* HAVE_SCTP_H */
i_errno = IEUNIMP;	i_errno = IEUNIMP;
return -1;	return -1;
#endif /* HAVE_SCTP */	#endif /* HAVE_SCTP_H */
break;

case OPT_NUMSTREAMS:	case OPT_NUMSTREAMS:
#if defined(linux) \|\| defined(__FreeBSD__)	#if defined(linux) \|\| defined(__FreeBSD__)
Line 772 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1275 iperf_parse_arguments(struct iperf_test *test, int arg
rate_flag = 1;	rate_flag = 1;
client_flag = 1;	client_flag = 1;
break;	break;
	case OPT_SERVER_BITRATE_LIMIT:
	slash = strchr(optarg, '/');
	if (slash) {
	*slash = '\0';
	++slash;
	test->settings->bitrate_limit_interval = atof(slash);
	if (test->settings->bitrate_limit_interval != 0 && /* Using same Max/Min limits as for Stats Interval */
	(test->settings->bitrate_limit_interval < MIN_INTERVAL \|\| test->settings->bitrate_limit_interval > MAX_INTERVAL) ) {
	i_errno = IETOTALINTERVAL;
	return -1;
	}
	}
	test->settings->bitrate_limit = unit_atof_rate(optarg);
	server_flag = 1;
	break;
case 't':	case 't':
test->duration = atoi(optarg);	test->duration = atoi(optarg);
if (test->duration > MAX_TIME) {	if (test->duration > MAX_TIME) {
Line 802 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1320 iperf_parse_arguments(struct iperf_test *test, int arg
client_flag = 1;	client_flag = 1;
break;	break;
case 'R':	case 'R':
	if (test->bidirectional) {
	i_errno = IEREVERSEBIDIR;
	return -1;
	}
iperf_set_test_reverse(test, 1);	iperf_set_test_reverse(test, 1);
client_flag = 1;	client_flag = 1;
break;	break;
	case OPT_BIDIRECTIONAL:
	if (test->reverse) {
	i_errno = IEREVERSEBIDIR;
	return -1;
	}
	iperf_set_test_bidirectional(test, 1);
	client_flag = 1;
	break;
case 'w':	case 'w':
// XXX: This is a socket buffer, not specific to TCP	// XXX: This is a socket buffer, not specific to TCP
test->settings->socket_bufsize = unit_atof(optarg);	// Do sanity checks as double-precision floating point
if (test->settings->socket_bufsize > MAX_TCP_BUFFER) {	// to avoid possible integer overflows.
	farg = unit_atof(optarg);
	if (farg > (double) MAX_TCP_BUFFER) {
i_errno = IEBUFSIZE;	i_errno = IEBUFSIZE;
return -1;	return -1;
}	}
	test->settings->socket_bufsize = (int) farg;
client_flag = 1;	client_flag = 1;
break;	break;

case 'B':	case 'B':
test->bind_address = strdup(optarg);	iperf_set_test_bind_address(test, optarg);

	if (iperf_parse_hostname(test, optarg, &p, &p1)) {
	#if defined(HAVE_SO_BINDTODEVICE)
	/* Get rid of the hostname we saved earlier. */
	free(iperf_get_test_bind_address(test));
	iperf_set_test_bind_address(test, p);
	iperf_set_test_bind_dev(test, p1);
	#else /* HAVE_SO_BINDTODEVICE */
	i_errno = IEBINDDEVNOSUPPORT;
	return -1;
	#endif /* HAVE_SO_BINDTODEVICE */
	}
break;	break;
	#if defined (HAVE_SO_BINDTODEVICE)
	case OPT_BIND_DEV:
	iperf_set_test_bind_dev(test, optarg);
	break;
	#endif /* HAVE_SO_BINDTODEVICE */
case OPT_CLIENT_PORT:	case OPT_CLIENT_PORT:
test->bind_port = atoi(optarg);	portno = atoi(optarg);
	if (portno < 1 \|\| portno > 65535) {
	i_errno = IEBADPORT;
	return -1;
	}
	test->bind_port = portno;
break;	break;
case 'M':	case 'M':
test->settings->mss = atoi(optarg);	test->settings->mss = atoi(optarg);
Line 848 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1404 iperf_parse_arguments(struct iperf_test *test, int arg
}	}
client_flag = 1;	client_flag = 1;
break;	break;
	case OPT_DSCP:
	test->settings->tos = parse_qos(optarg);
	if(test->settings->tos < 0) {
	i_errno = IEBADTOS;
	return -1;
	}
	client_flag = 1;
	break;
	case OPT_EXTRA_DATA:
	test->extra_data = strdup(optarg);
	client_flag = 1;
	break;
case 'L':	case 'L':
#if defined(HAVE_FLOWLABEL)	#if defined(HAVE_FLOWLABEL)
test->settings->flowlabel = strtol(optarg, &endptr, 0);	test->settings->flowlabel = strtol(optarg, &endptr, 0);
Line 884 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1452 iperf_parse_arguments(struct iperf_test *test, int arg
test->zerocopy = 1;	test->zerocopy = 1;
client_flag = 1;	client_flag = 1;
break;	break;
	case OPT_REPEATING_PAYLOAD:
	test->repeating_payload = 1;
	client_flag = 1;
	break;
	case OPT_TIMESTAMPS:
	iperf_set_test_timestamps(test, 1);
	if (optarg) {
	iperf_set_test_timestamp_format(test, optarg);
	}
	else {
	iperf_set_test_timestamp_format(test, TIMESTAMP_FORMAT);
	}
	break;
case 'O':	case 'O':
test->omit = atoi(optarg);	test->omit = atoi(optarg);
if (test->omit < 0 \|\| test->omit > 60) {	if (test->omit < 0 \|\| test->omit > 60) {
Line 895 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1476 iperf_parse_arguments(struct iperf_test *test, int arg
case 'F':	case 'F':
test->diskfile_name = optarg;	test->diskfile_name = optarg;
break;	break;
	case OPT_IDLE_TIMEOUT:
	test->settings->idle_timeout = atoi(optarg);
	if (test->settings->idle_timeout < 1 \|\| test->settings->idle_timeout > MAX_TIME) {
	i_errno = IEIDLETIMEOUT;
	return -1;
	}
	server_flag = 1;
	break;
	case OPT_RCV_TIMEOUT:
	rcv_timeout_in = atoi(optarg);
	if (rcv_timeout_in < MIN_NO_MSG_RCVD_TIMEOUT \|\| rcv_timeout_in > MAX_TIME * SEC_TO_mS) {
	i_errno = IERCVTIMEOUT;
	return -1;
	}
	test->settings->rcv_timeout.secs = rcv_timeout_in / SEC_TO_mS;
	test->settings->rcv_timeout.usecs = (rcv_timeout_in % SEC_TO_mS) * mS_TO_US;
	rcv_timeout_flag = 1;
	break;
	#if defined(HAVE_TCP_USER_TIMEOUT)
	case OPT_SND_TIMEOUT:
	test->settings->snd_timeout = atoi(optarg);
	if (test->settings->snd_timeout < 0 \|\| test->settings->snd_timeout > MAX_TIME * SEC_TO_mS) {
	i_errno = IESNDTIMEOUT;
	return -1;
	}
	snd_timeout_flag = 1;
	break;
	#endif /* HAVE_TCP_USER_TIMEOUT */
case 'A':	case 'A':
#if defined(HAVE_CPU_AFFINITY)	#if defined(HAVE_CPU_AFFINITY)
test->affinity = strtol(optarg, &endptr, 0);	test->affinity = strtol(optarg, &endptr, 0);
if (endptr == optarg \|\|	if (endptr == optarg \|\|
test->affinity < 0 \|\| test->affinity > 1024) {	test->affinity < 0 \|\| test->affinity > 1024) {
i_errno = IEAFFINITY;	i_errno = IEAFFINITY;
return -1;	return -1;
Line 932 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1541 iperf_parse_arguments(struct iperf_test *test, int arg
break;	break;
case 'd':	case 'd':
test->debug = 1;	test->debug = 1;
	test->debug_level = DEBUG_LEVEL_MAX;
	if (optarg) {
	test->debug_level = atoi(optarg);
	if (test->debug_level < 0)
	test->debug_level = DEBUG_LEVEL_MAX;
	}
break;	break;
case 'I':	case 'I':
test->pidfile = strdup(optarg);	test->pidfile = strdup(optarg);
server_flag = 1;
break;	break;
case OPT_LOGFILE:	case OPT_LOGFILE:
test->logfile = strdup(optarg);	test->logfile = strdup(optarg);
break;	break;
	case OPT_FORCEFLUSH:
	test->forceflush = 1;
	break;
case OPT_GET_SERVER_OUTPUT:	case OPT_GET_SERVER_OUTPUT:
test->get_server_output = 1;	test->get_server_output = 1;
client_flag = 1;	client_flag = 1;
Line 949 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1566 iperf_parse_arguments(struct iperf_test *test, int arg
break;	break;
case OPT_NO_FQ_SOCKET_PACING:	case OPT_NO_FQ_SOCKET_PACING:
#if defined(HAVE_SO_MAX_PACING_RATE)	#if defined(HAVE_SO_MAX_PACING_RATE)
test->no_fq_socket_pacing = 1;	printf("Warning: --no-fq-socket-pacing is deprecated\n");
	test->settings->fqrate = 0;
	client_flag = 1;
#else /* HAVE_SO_MAX_PACING_RATE */	#else /* HAVE_SO_MAX_PACING_RATE */
i_errno = IEUNIMP;	i_errno = IEUNIMP;
return -1;	return -1;
#endif	#endif
break;	break;
case 'h':	case OPT_FQ_RATE:
	#if defined(HAVE_SO_MAX_PACING_RATE)
	test->settings->fqrate = unit_atof_rate(optarg);
	client_flag = 1;
	#else /* HAVE_SO_MAX_PACING_RATE */
	i_errno = IEUNIMP;
	return -1;
	#endif
	break;
	#if defined(HAVE_DONT_FRAGMENT)
	case OPT_DONT_FRAGMENT:
	test->settings->dont_fragment = 1;
	client_flag = 1;
	break;
	#endif /* HAVE_DONT_FRAGMENT */
	#if defined(HAVE_SSL)
	case OPT_CLIENT_USERNAME:
	client_username = strdup(optarg);
	break;
	case OPT_CLIENT_RSA_PUBLIC_KEY:
	client_rsa_public_key = strdup(optarg);
	break;
	case OPT_SERVER_RSA_PRIVATE_KEY:
	server_rsa_private_key = strdup(optarg);
	break;
	case OPT_SERVER_AUTHORIZED_USERS:
	test->server_authorized_users = strdup(optarg);
	break;
	case OPT_SERVER_SKEW_THRESHOLD:
	test->server_skew_threshold = atoi(optarg);
	if(test->server_skew_threshold <= 0){
	i_errno = IESKEWTHRESHOLD;
	return -1;
	}
	break;
	#endif /* HAVE_SSL */
	case OPT_PACING_TIMER:
	test->settings->pacing_timer = unit_atoi(optarg);
	client_flag = 1;
	break;
	case OPT_CONNECT_TIMEOUT:
	test->settings->connect_timeout = unit_atoi(optarg);
	client_flag = 1;
	break;
	case 'h':
	usage_long(stdout);
	exit(0);
default:	default:
usage_long();	fprintf(stderr, "\n");
	usage();
exit(1);	exit(1);
}	}
}	}

/* Set logging to a file if specified, otherwise use the default (stdout) */
if (test->logfile) {
test->outfile = fopen(test->logfile, "a+");
if (test->outfile == NULL) {
i_errno = IELOGFILE;
return -1;
}
}

/* Check flag / role compatibility. */	/* Check flag / role compatibility. */
if (test->role == 'c' && server_flag) {	if (test->role == 'c' && server_flag) {
i_errno = IESERVERONLY;	i_errno = IESERVERONLY;
return -1;	return -1;
}	}
if (test->role == 's' && client_flag) {	if (test->role == 's' && client_flag) {
i_errno = IECLIENTONLY;	i_errno = IECLIENTONLY;
return -1;	return -1;
}	}

if (!test->bind_address && test->bind_port) {	#if defined(HAVE_SSL)
i_errno = IEBIND;
	if (test->role == 's' && (client_username \|\| client_rsa_public_key)){
	i_errno = IECLIENTONLY;
return -1;	return -1;
	} else if (test->role == 'c' && (client_username \|\| client_rsa_public_key) &&
	!(client_username && client_rsa_public_key)) {
	i_errno = IESETCLIENTAUTH;
	return -1;
	} else if (test->role == 'c' && (client_username && client_rsa_public_key)){

	char *client_password = NULL;
	size_t s;
	if (test_load_pubkey_from_file(client_rsa_public_key) < 0){
	iperf_err(test, "%s\n", ERR_error_string(ERR_get_error(), NULL));
	i_errno = IESETCLIENTAUTH;
	return -1;
	}
	/* Need to copy env var, so we can do a common free */
	if ((client_password = getenv("IPERF3_PASSWORD")) != NULL)
	client_password = strdup(client_password);
	else if (iperf_getpass(&client_password, &s, stdin) < 0){
	i_errno = IESETCLIENTAUTH;
	return -1;
	}

	test->settings->client_username = client_username;
	test->settings->client_password = client_password;
	test->settings->client_rsa_pubkey = load_pubkey_from_file(client_rsa_public_key);
	free(client_rsa_public_key);
	client_rsa_public_key = NULL;
}	}

	if (test->role == 'c' && (server_rsa_private_key \|\| test->server_authorized_users)){
	i_errno = IESERVERONLY;
	return -1;
	} else if (test->role == 'c' && (test->server_skew_threshold != 0)){
	i_errno = IESERVERONLY;
	return -1;
	} else if (test->role == 'c' && rcv_timeout_flag && test->mode == SENDER){
	i_errno = IERVRSONLYRCVTIMEOUT;
	return -1;
	} else if (test->role == 's' && (server_rsa_private_key \|\| test->server_authorized_users) &&
	!(server_rsa_private_key && test->server_authorized_users)) {
	i_errno = IESETSERVERAUTH;
	return -1;
	} else if (test->role == 's' && server_rsa_private_key) {
	test->server_rsa_private_key = load_privkey_from_file(server_rsa_private_key);
	if (test->server_rsa_private_key == NULL){
	iperf_err(test, "%s\n", ERR_error_string(ERR_get_error(), NULL));
	i_errno = IESETSERVERAUTH;
	return -1;
	}
	free(server_rsa_private_key);
	server_rsa_private_key = NULL;

	if(test->server_skew_threshold == 0){
	// Set default value for time skew threshold
	test->server_skew_threshold=10;
	}
	}

	#endif //HAVE_SSL

	// File cannot be transferred using UDP because of the UDP packets header (packet number, etc.)
	if(test->role == 'c' && test->diskfile_name != (char*) 0 && test->protocol->id == Pudp) {
	i_errno = IEUDPFILETRANSFER;
	return -1;
	}

if (blksize == 0) {	if (blksize == 0) {
if (test->protocol->id == Pudp)	if (test->protocol->id == Pudp)
blksize = DEFAULT_UDP_BLKSIZE;	blksize = 0; /* try to dynamically determine from MSS */
else if (test->protocol->id == Psctp)	else if (test->protocol->id == Psctp)
blksize = DEFAULT_SCTP_BLKSIZE;	blksize = DEFAULT_SCTP_BLKSIZE;
else	else
blksize = DEFAULT_TCP_BLKSIZE;	blksize = DEFAULT_TCP_BLKSIZE;
}	}
if (blksize <= 0 \|\| blksize > MAX_BLOCKSIZE) {	if ((test->protocol->id != Pudp && blksize <= 0)
	\|\| blksize > MAX_BLOCKSIZE) {
i_errno = IEBLOCKSIZE;	i_errno = IEBLOCKSIZE;
return -1;	return -1;
}	}
if (test->protocol->id == Pudp &&	if (test->protocol->id == Pudp &&
blksize > MAX_UDP_BLOCKSIZE) {	(blksize > 0 &&
	(blksize < MIN_UDP_BLOCKSIZE \|\| blksize > MAX_UDP_BLOCKSIZE))) {
i_errno = IEUDPBLOCKSIZE;	i_errno = IEUDPBLOCKSIZE;
return -1;	return -1;
}	}
Line 1007 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1732 iperf_parse_arguments(struct iperf_test *test, int arg
if (!rate_flag)	if (!rate_flag)
test->settings->rate = test->protocol->id == Pudp ? UDP_RATE : 0;	test->settings->rate = test->protocol->id == Pudp ? UDP_RATE : 0;

	/* if no bytes or blocks specified, nor a duration_flag, and we have -F,
	** get the file-size as the bytes count to be transferred
	*/
	if (test->settings->bytes == 0 &&
	test->settings->blocks == 0 &&
	! duration_flag &&
	test->diskfile_name != (char*) 0 &&
	test->role == 'c'
	){
	struct stat st;
	if( stat(test->diskfile_name, &st) == 0 ){
	iperf_size_t file_bytes = st.st_size;
	test->settings->bytes = file_bytes;
	if (test->debug)
	printf("End condition set to file-size: %"PRIu64" bytes\n", test->settings->bytes);
	}
	// if failing to read file stat, it should fallback to default duration mode
	}

if ((test->settings->bytes != 0 \|\| test->settings->blocks != 0) && ! duration_flag)	if ((test->settings->bytes != 0 \|\| test->settings->blocks != 0) && ! duration_flag)
test->duration = 0;	test->duration = 0;

Line 1033 iperf_parse_arguments(struct iperf_test *test, int arg	Line 1777 iperf_parse_arguments(struct iperf_test *test, int arg
return -1;	return -1;
}	}

	/* Set Total-rate average interval to multiplicity of State interval */
	if (test->settings->bitrate_limit_interval != 0) {
	test->settings->bitrate_limit_stats_per_interval =
	(test->settings->bitrate_limit_interval <= test->stats_interval ?
	1 : round(test->settings->bitrate_limit_interval/test->stats_interval) );
	}

	/* Show warning if JSON output is used with explicit report format */
	if ((test->json_output) && (test->settings->unit_format != 'a')) {
	warning("Report format (-f) flag ignored with JSON output (-J)");
	}

	/* Show warning if JSON output is used with verbose or debug flags */
	if (test->json_output && test->verbose) {
	warning("Verbose output (-v) may interfere with JSON output (-J)");
	}
	if (test->json_output && test->debug) {
	warning("Debug output (-d) may interfere with JSON output (-J)");
	}

return 0;	return 0;
}	}

	/*
	* Open the file specified by test->logfile and set test->outfile to its' FD.
	*/
	int iperf_open_logfile(struct iperf_test *test)
	{
	test->outfile = fopen(test->logfile, "a+");
	if (test->outfile == NULL) {
	i_errno = IELOGFILE;
	return -1;
	}

	return 0;
	}

	void iperf_close_logfile(struct iperf_test *test)
	{
	if (test->outfile && test->outfile != stdout) {
	fclose(test->outfile);
	test->outfile = NULL;
	}
	}

int	int
iperf_set_send_state(struct iperf_test *test, signed char state)	iperf_set_send_state(struct iperf_test *test, signed char state)
{	{
test->state = state;	if (test->ctrl_sck >= 0) {
if (Nwrite(test->ctrl_sck, (char*) &state, sizeof(state), Ptcp) < 0) {	test->state = state;
i_errno = IESENDMESSAGE;	if (Nwrite(test->ctrl_sck, (char*) &state, sizeof(state), Ptcp) < 0) {
return -1;	i_errno = IESENDMESSAGE;
	return -1;
	}
}	}
return 0;	return 0;
}	}

void	void
iperf_check_throttle(struct iperf_stream sp, struct timeval nowP)	iperf_check_throttle(struct iperf_stream sp, struct iperf_time nowP)
{	{
	struct iperf_time temp_time;
double seconds;	double seconds;
uint64_t bits_per_second;	uint64_t bits_per_second;

if (sp->test->done)	if (sp->test->done \|\| sp->test->settings->rate == 0)
return;	return;
seconds = timeval_diff(&sp->result->start_time_fixed, nowP);	iperf_time_diff(&sp->result->start_time_fixed, nowP, &temp_time);
	seconds = iperf_time_in_secs(&temp_time);
bits_per_second = sp->result->bytes_sent * 8 / seconds;	bits_per_second = sp->result->bytes_sent * 8 / seconds;
if (bits_per_second < sp->test->settings->rate) {	if (bits_per_second < sp->test->settings->rate) {
sp->green_light = 1;	sp->green_light = 1;
Line 1066 iperf_check_throttle(struct iperf_stream *sp, struct t	Line 1856 iperf_check_throttle(struct iperf_stream *sp, struct t
}	}
}	}

	/* Verify that average traffic is not greater than the specified limit */
	void
	iperf_check_total_rate(struct iperf_test *test, iperf_size_t last_interval_bytes_transferred)
	{
	double seconds;
	uint64_t bits_per_second;
	iperf_size_t total_bytes;
	int i;

	if (test->done \|\| test->settings->bitrate_limit == 0) // Continue only if check should be done
	return;

	/* Add last inetrval's transferred bytes to the array */
	if (++test->bitrate_limit_last_interval_index >= test->settings->bitrate_limit_stats_per_interval)
	test->bitrate_limit_last_interval_index = 0;
	test->bitrate_limit_intervals_traffic_bytes[test->bitrate_limit_last_interval_index] = last_interval_bytes_transferred;

	/* Ensure that enough stats periods passed to allow averaging throughput */
	test->bitrate_limit_stats_count += 1;
	if (test->bitrate_limit_stats_count < test->settings->bitrate_limit_stats_per_interval)
	return;

	/* Calculating total bytes traffic to be averaged */
	for (total_bytes = 0, i = 0; i < test->settings->bitrate_limit_stats_per_interval; i++) {
	total_bytes += test->bitrate_limit_intervals_traffic_bytes[i];
	}

	seconds = test->stats_interval * test->settings->bitrate_limit_stats_per_interval;
	bits_per_second = total_bytes * 8 / seconds;
	if (test->debug) {
	iperf_printf(test,"Interval %" PRIu64 " - throughput %" PRIu64 " bps (limit %" PRIu64 ")\n", test->bitrate_limit_stats_count, bits_per_second, test->settings->bitrate_limit);
	}

	if (bits_per_second > test->settings->bitrate_limit) {
	if (iperf_get_verbose(test))
	iperf_err(test, "Total throughput of %" PRIu64 " bps exceeded %" PRIu64 " bps limit", bits_per_second, test->settings->bitrate_limit);
	test->bitrate_limit_exceeded = 1;
	}
	}

int	int
iperf_send(struct iperf_test test, fd_set write_setP)	iperf_send(struct iperf_test test, fd_set write_setP)
{	{
register int multisend, r, streams_active;	register int multisend, r, streams_active;
register struct iperf_stream *sp;	register struct iperf_stream *sp;
struct timeval now;	struct iperf_time now;
	int no_throttle_check;

/* Can we do multisend mode? */	/* Can we do multisend mode? */
if (test->settings->burst != 0)	if (test->settings->burst != 0)
Line 1081 iperf_send(struct iperf_test test, fd_set write_setP	Line 1912 iperf_send(struct iperf_test test, fd_set write_setP
else	else
multisend = 1; /* nope */	multisend = 1; /* nope */

	/* Should bitrate throttle be checked for every send */
	no_throttle_check = test->settings->rate != 0 && test->settings->burst == 0;

for (; multisend > 0; --multisend) {	for (; multisend > 0; --multisend) {
if (test->settings->rate != 0 && test->settings->burst == 0)	if (no_throttle_check)
gettimeofday(&now, NULL);	iperf_time_now(&now);
streams_active = 0;	streams_active = 0;
SLIST_FOREACH(sp, &test->streams, streams) {	SLIST_FOREACH(sp, &test->streams, streams) {
if (! test->no_fq_socket_pacing \|\|	if ((sp->green_light && sp->sender &&
(sp->green_light &&
(write_setP == NULL \|\| FD_ISSET(sp->socket, write_setP)))) {	(write_setP == NULL \|\| FD_ISSET(sp->socket, write_setP)))) {
	if (multisend > 1 && test->settings->bytes != 0 && test->bytes_sent >= test->settings->bytes)
	break;
	if (multisend > 1 && test->settings->blocks != 0 && test->blocks_sent >= test->settings->blocks)
	break;
if ((r = sp->snd(sp)) < 0) {	if ((r = sp->snd(sp)) < 0) {
if (r == NET_SOFTERROR)	if (r == NET_SOFTERROR)
break;	break;
Line 1097 iperf_send(struct iperf_test test, fd_set write_setP	Line 1934 iperf_send(struct iperf_test test, fd_set write_setP
}	}
streams_active = 1;	streams_active = 1;
test->bytes_sent += r;	test->bytes_sent += r;
++test->blocks_sent;	if (!sp->pending_size)
if (test->settings->rate != 0 && test->settings->burst == 0)	++test->blocks_sent;
	if (no_throttle_check)
iperf_check_throttle(sp, &now);	iperf_check_throttle(sp, &now);
if (multisend > 1 && test->settings->bytes != 0 && test->bytes_sent >= test->settings->bytes)
break;
if (multisend > 1 && test->settings->blocks != 0 && test->blocks_sent >= test->settings->blocks)
break;
}	}
}	}
if (!streams_active)	if (!streams_active)
break;	break;
}	}
if (test->settings->burst != 0) {	if (!no_throttle_check) { /* Throttle check if was not checked for each send */
gettimeofday(&now, NULL);	iperf_time_now(&now);
SLIST_FOREACH(sp, &test->streams, streams)	SLIST_FOREACH(sp, &test->streams, streams)
iperf_check_throttle(sp, &now);	if (sp->sender)
	iperf_check_throttle(sp, &now);
}	}
if (write_setP != NULL)	if (write_setP != NULL)
SLIST_FOREACH(sp, &test->streams, streams)	SLIST_FOREACH(sp, &test->streams, streams)
Line 1129 iperf_recv(struct iperf_test test, fd_set read_setP)	Line 1964 iperf_recv(struct iperf_test test, fd_set read_setP)
struct iperf_stream *sp;	struct iperf_stream *sp;

SLIST_FOREACH(sp, &test->streams, streams) {	SLIST_FOREACH(sp, &test->streams, streams) {
if (FD_ISSET(sp->socket, read_setP)) {	if (FD_ISSET(sp->socket, read_setP) && !sp->sender) {
if ((r = sp->rcv(sp)) < 0) {	if ((r = sp->rcv(sp)) < 0) {
i_errno = IESTREAMREAD;	i_errno = IESTREAMREAD;
return r;	return r;
}	}
test->bytes_sent += r;	test->bytes_received += r;
++test->blocks_sent;	++test->blocks_received;
FD_CLR(sp->socket, read_setP);	FD_CLR(sp->socket, read_setP);
}	}
}	}
Line 1146 iperf_recv(struct iperf_test test, fd_set read_setP)	Line 1981 iperf_recv(struct iperf_test test, fd_set read_setP)
int	int
iperf_init_test(struct iperf_test *test)	iperf_init_test(struct iperf_test *test)
{	{
struct timeval now;	struct iperf_time now;
struct iperf_stream *sp;	struct iperf_stream *sp;

if (test->protocol->init) {	if (test->protocol->init) {
Line 1155 iperf_init_test(struct iperf_test *test)	Line 1990 iperf_init_test(struct iperf_test *test)
}	}

/* Init each stream. */	/* Init each stream. */
if (gettimeofday(&now, NULL) < 0) {	if (iperf_time_now(&now) < 0) {
i_errno = IEINITTEST;	i_errno = IEINITTEST;
return -1;	return -1;
}	}
Line 1170 iperf_init_test(struct iperf_test *test)	Line 2005 iperf_init_test(struct iperf_test *test)
}	}

static void	static void
send_timer_proc(TimerClientData client_data, struct timeval *nowP)	send_timer_proc(TimerClientData client_data, struct iperf_time *nowP)
{	{
struct iperf_stream *sp = client_data.p;	struct iperf_stream *sp = client_data.p;

Line 1184 send_timer_proc(TimerClientData client_data, struct ti	Line 2019 send_timer_proc(TimerClientData client_data, struct ti
int	int
iperf_create_send_timers(struct iperf_test * test)	iperf_create_send_timers(struct iperf_test * test)
{	{
struct timeval now;	struct iperf_time now;
struct iperf_stream *sp;	struct iperf_stream *sp;
TimerClientData cd;	TimerClientData cd;

if (gettimeofday(&now, NULL) < 0) {	if (iperf_time_now(&now) < 0) {
i_errno = IEINITTEST;	i_errno = IEINITTEST;
return -1;	return -1;
}	}
SLIST_FOREACH(sp, &test->streams, streams) {	SLIST_FOREACH(sp, &test->streams, streams) {
sp->green_light = 1;	sp->green_light = 1;
if (test->settings->rate != 0) {	if (test->settings->rate != 0 && sp->sender) {
cd.p = sp;	cd.p = sp;
sp->send_timer = tmr_create((struct timeval*) 0, send_timer_proc, cd, 100000L, 1);	sp->send_timer = tmr_create(NULL, send_timer_proc, cd, test->settings->pacing_timer, 1);
/* (Repeat every tenth second - arbitrary often value.) */
if (sp->send_timer == NULL) {	if (sp->send_timer == NULL) {
i_errno = IEINITTEST;	i_errno = IEINITTEST;
return -1;	return -1;
Line 1207 iperf_create_send_timers(struct iperf_test * test)	Line 2041 iperf_create_send_timers(struct iperf_test * test)
return 0;	return 0;
}	}

	#if defined(HAVE_SSL)
	int test_is_authorized(struct iperf_test *test){
	if ( !(test->server_rsa_private_key && test->server_authorized_users)) {
	return 0;
	}

	if (test->settings->authtoken){
	char username = NULL, password = NULL;
	time_t ts;
	int rc = decode_auth_setting(test->debug, test->settings->authtoken, test->server_rsa_private_key, &username, &password, &ts);
	if (rc) {
	return -1;
	}
	int ret = check_authentication(username, password, ts, test->server_authorized_users, test->server_skew_threshold);
	if (ret == 0){
	if (test->debug) {
	iperf_printf(test, report_authentication_succeeded, username, ts);
	}
	free(username);
	free(password);
	return 0;
	} else {
	if (test->debug) {
	iperf_printf(test, report_authentication_failed, ret, username, ts);
	}
	free(username);
	free(password);
	return -1;
	}
	}
	return -1;
	}
	#endif //HAVE_SSL

/**	/**
* iperf_exchange_parameters - handles the param_Exchange part for client	* iperf_exchange_parameters - handles the param_Exchange part for client
*	*
Line 1228 iperf_exchange_parameters(struct iperf_test *test)	Line 2096 iperf_exchange_parameters(struct iperf_test *test)
if (get_parameters(test) < 0)	if (get_parameters(test) < 0)
return -1;	return -1;

	#if defined(HAVE_SSL)
	if (test_is_authorized(test) < 0){
	if (iperf_set_send_state(test, SERVER_ERROR) != 0)
	return -1;
	i_errno = IEAUTHTEST;
	err = htonl(i_errno);
	if (Nwrite(test->ctrl_sck, (char*) &err, sizeof(err), Ptcp) < 0) {
	i_errno = IECTRLWRITE;
	return -1;
	}
	return -1;
	}
	#endif //HAVE_SSL

if ((s = test->protocol->listen(test)) < 0) {	if ((s = test->protocol->listen(test)) < 0) {
if (iperf_set_send_state(test, SERVER_ERROR) != 0)	if (iperf_set_send_state(test, SERVER_ERROR) != 0)
return -1;	return -1;
err = htonl(i_errno);	err = htonl(i_errno);
if (Nwrite(test->ctrl_sck, (char*) &err, sizeof(err), Ptcp) < 0) {	if (Nwrite(test->ctrl_sck, (char*) &err, sizeof(err), Ptcp) < 0) {
Line 1243 iperf_exchange_parameters(struct iperf_test *test)	Line 2125 iperf_exchange_parameters(struct iperf_test *test)
}	}
return -1;	return -1;
}	}

FD_SET(s, &test->read_set);	FD_SET(s, &test->read_set);
test->max_fd = (s > test->max_fd) ? s : test->max_fd;	test->max_fd = (s > test->max_fd) ? s : test->max_fd;
test->prot_listener = s;	test->prot_listener = s;
Line 1301 send_parameters(struct iperf_test *test)	Line 2184 send_parameters(struct iperf_test *test)
cJSON_AddNumberToObject(j, "omit", test->omit);	cJSON_AddNumberToObject(j, "omit", test->omit);
if (test->server_affinity != -1)	if (test->server_affinity != -1)
cJSON_AddNumberToObject(j, "server_affinity", test->server_affinity);	cJSON_AddNumberToObject(j, "server_affinity", test->server_affinity);
if (test->duration)	cJSON_AddNumberToObject(j, "time", test->duration);
cJSON_AddNumberToObject(j, "time", test->duration);	cJSON_AddNumberToObject(j, "num", test->settings->bytes);
if (test->settings->bytes)	cJSON_AddNumberToObject(j, "blockcount", test->settings->blocks);
cJSON_AddNumberToObject(j, "num", test->settings->bytes);
if (test->settings->blocks)
cJSON_AddNumberToObject(j, "blockcount", test->settings->blocks);
if (test->settings->mss)	if (test->settings->mss)
cJSON_AddNumberToObject(j, "MSS", test->settings->mss);	cJSON_AddNumberToObject(j, "MSS", test->settings->mss);
if (test->no_delay)	if (test->no_delay)
Line 1314 send_parameters(struct iperf_test *test)	Line 2194 send_parameters(struct iperf_test *test)
cJSON_AddNumberToObject(j, "parallel", test->num_streams);	cJSON_AddNumberToObject(j, "parallel", test->num_streams);
if (test->reverse)	if (test->reverse)
cJSON_AddTrueToObject(j, "reverse");	cJSON_AddTrueToObject(j, "reverse");
	if (test->bidirectional)
	cJSON_AddTrueToObject(j, "bidirectional");
if (test->settings->socket_bufsize)	if (test->settings->socket_bufsize)
cJSON_AddNumberToObject(j, "window", test->settings->socket_bufsize);	cJSON_AddNumberToObject(j, "window", test->settings->socket_bufsize);
if (test->settings->blksize)	if (test->settings->blksize)
cJSON_AddNumberToObject(j, "len", test->settings->blksize);	cJSON_AddNumberToObject(j, "len", test->settings->blksize);
if (test->settings->rate)	if (test->settings->rate)
cJSON_AddNumberToObject(j, "bandwidth", test->settings->rate);	cJSON_AddNumberToObject(j, "bandwidth", test->settings->rate);
	if (test->settings->fqrate)
	cJSON_AddNumberToObject(j, "fqrate", test->settings->fqrate);
	if (test->settings->pacing_timer)
	cJSON_AddNumberToObject(j, "pacing_timer", test->settings->pacing_timer);
if (test->settings->burst)	if (test->settings->burst)
cJSON_AddNumberToObject(j, "burst", test->settings->burst);	cJSON_AddNumberToObject(j, "burst", test->settings->burst);
if (test->settings->tos)	if (test->settings->tos)
Line 1328 send_parameters(struct iperf_test *test)	Line 2214 send_parameters(struct iperf_test *test)
cJSON_AddNumberToObject(j, "flowlabel", test->settings->flowlabel);	cJSON_AddNumberToObject(j, "flowlabel", test->settings->flowlabel);
if (test->title)	if (test->title)
cJSON_AddStringToObject(j, "title", test->title);	cJSON_AddStringToObject(j, "title", test->title);
	if (test->extra_data)
	cJSON_AddStringToObject(j, "extra_data", test->extra_data);
if (test->congestion)	if (test->congestion)
cJSON_AddStringToObject(j, "congestion", test->congestion);	cJSON_AddStringToObject(j, "congestion", test->congestion);
	if (test->congestion_used)
	cJSON_AddStringToObject(j, "congestion_used", test->congestion_used);
if (test->get_server_output)	if (test->get_server_output)
cJSON_AddNumberToObject(j, "get_server_output", iperf_get_test_get_server_output(test));	cJSON_AddNumberToObject(j, "get_server_output", iperf_get_test_get_server_output(test));
if (test->udp_counters_64bit)	if (test->udp_counters_64bit)
cJSON_AddNumberToObject(j, "udp_counters_64bit", iperf_get_test_udp_counters_64bit(test));	cJSON_AddNumberToObject(j, "udp_counters_64bit", iperf_get_test_udp_counters_64bit(test));
if (test->no_fq_socket_pacing)	if (test->repeating_payload)
cJSON_AddNumberToObject(j, "no_fq_socket_pacing", iperf_get_no_fq_socket_pacing(test));	cJSON_AddNumberToObject(j, "repeating_payload", test->repeating_payload);
	if (test->zerocopy)
	cJSON_AddNumberToObject(j, "zerocopy", test->zerocopy);
	#if defined(HAVE_DONT_FRAGMENT)
	if (test->settings->dont_fragment)
	cJSON_AddNumberToObject(j, "dont_fragment", test->settings->dont_fragment);
	#endif /* HAVE_DONT_FRAGMENT */
	#if defined(HAVE_SSL)
	/* Send authentication parameters */
	if (test->settings->client_username && test->settings->client_password && test->settings->client_rsa_pubkey){
	int rc = encode_auth_setting(test->settings->client_username, test->settings->client_password, test->settings->client_rsa_pubkey, &test->settings->authtoken);

	if (rc) {
	cJSON_Delete(j);
	i_errno = IESENDPARAMS;
	return -1;
	}

	cJSON_AddStringToObject(j, "authtoken", test->settings->authtoken);
	}
	#endif // HAVE_SSL
cJSON_AddStringToObject(j, "client_version", IPERF_VERSION);	cJSON_AddStringToObject(j, "client_version", IPERF_VERSION);

if (test->debug) {	if (test->debug) {
printf("send_parameters:\n%s\n", cJSON_Print(j));	char *str = cJSON_Print(j);
	printf("send_parameters:\n%s\n", str);
	cJSON_free(str);
}	}

if (JSON_write(test->ctrl_sck, j) < 0) {	if (JSON_write(test->ctrl_sck, j) < 0) {
Line 1367 get_parameters(struct iperf_test *test)	Line 2278 get_parameters(struct iperf_test *test)
r = -1;	r = -1;
} else {	} else {
if (test->debug) {	if (test->debug) {
printf("get_parameters:\n%s\n", cJSON_Print(j));	char *str;
	str = cJSON_Print(j);
	printf("get_parameters:\n%s\n", str );
	cJSON_free(str);
}	}

if ((j_p = cJSON_GetObjectItem(j, "tcp")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "tcp")) != NULL)
Line 1382 get_parameters(struct iperf_test *test)	Line 2296 get_parameters(struct iperf_test *test)
test->server_affinity = j_p->valueint;	test->server_affinity = j_p->valueint;
if ((j_p = cJSON_GetObjectItem(j, "time")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "time")) != NULL)
test->duration = j_p->valueint;	test->duration = j_p->valueint;
	test->settings->bytes = 0;
if ((j_p = cJSON_GetObjectItem(j, "num")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "num")) != NULL)
test->settings->bytes = j_p->valueint;	test->settings->bytes = j_p->valueint;
	test->settings->blocks = 0;
if ((j_p = cJSON_GetObjectItem(j, "blockcount")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "blockcount")) != NULL)
test->settings->blocks = j_p->valueint;	test->settings->blocks = j_p->valueint;
if ((j_p = cJSON_GetObjectItem(j, "MSS")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "MSS")) != NULL)
Line 1394 get_parameters(struct iperf_test *test)	Line 2310 get_parameters(struct iperf_test *test)
test->num_streams = j_p->valueint;	test->num_streams = j_p->valueint;
if ((j_p = cJSON_GetObjectItem(j, "reverse")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "reverse")) != NULL)
iperf_set_test_reverse(test, 1);	iperf_set_test_reverse(test, 1);
	if ((j_p = cJSON_GetObjectItem(j, "bidirectional")) != NULL)
	iperf_set_test_bidirectional(test, 1);
if ((j_p = cJSON_GetObjectItem(j, "window")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "window")) != NULL)
test->settings->socket_bufsize = j_p->valueint;	test->settings->socket_bufsize = j_p->valueint;
if ((j_p = cJSON_GetObjectItem(j, "len")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "len")) != NULL)
test->settings->blksize = j_p->valueint;	test->settings->blksize = j_p->valueint;
if ((j_p = cJSON_GetObjectItem(j, "bandwidth")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "bandwidth")) != NULL)
test->settings->rate = j_p->valueint;	test->settings->rate = j_p->valueint;
	if ((j_p = cJSON_GetObjectItem(j, "fqrate")) != NULL)
	test->settings->fqrate = j_p->valueint;
	if ((j_p = cJSON_GetObjectItem(j, "pacing_timer")) != NULL)
	test->settings->pacing_timer = j_p->valueint;
if ((j_p = cJSON_GetObjectItem(j, "burst")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "burst")) != NULL)
test->settings->burst = j_p->valueint;	test->settings->burst = j_p->valueint;
if ((j_p = cJSON_GetObjectItem(j, "TOS")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "TOS")) != NULL)
Line 1408 get_parameters(struct iperf_test *test)	Line 2330 get_parameters(struct iperf_test *test)
test->settings->flowlabel = j_p->valueint;	test->settings->flowlabel = j_p->valueint;
if ((j_p = cJSON_GetObjectItem(j, "title")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "title")) != NULL)
test->title = strdup(j_p->valuestring);	test->title = strdup(j_p->valuestring);
	if ((j_p = cJSON_GetObjectItem(j, "extra_data")) != NULL)
	test->extra_data = strdup(j_p->valuestring);
if ((j_p = cJSON_GetObjectItem(j, "congestion")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "congestion")) != NULL)
test->congestion = strdup(j_p->valuestring);	test->congestion = strdup(j_p->valuestring);
	if ((j_p = cJSON_GetObjectItem(j, "congestion_used")) != NULL)
	test->congestion_used = strdup(j_p->valuestring);
if ((j_p = cJSON_GetObjectItem(j, "get_server_output")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "get_server_output")) != NULL)
iperf_set_test_get_server_output(test, 1);	iperf_set_test_get_server_output(test, 1);
if ((j_p = cJSON_GetObjectItem(j, "udp_counters_64bit")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "udp_counters_64bit")) != NULL)
iperf_set_test_udp_counters_64bit(test, 1);	iperf_set_test_udp_counters_64bit(test, 1);
if ((j_p = cJSON_GetObjectItem(j, "no_fq_socket_pacing")) != NULL)	if ((j_p = cJSON_GetObjectItem(j, "repeating_payload")) != NULL)
iperf_set_no_fq_socket_pacing(test, 1);	test->repeating_payload = 1;
	if ((j_p = cJSON_GetObjectItem(j, "zerocopy")) != NULL)
if (test->sender && test->protocol->id == Ptcp && has_tcpinfo_retransmits())	test->zerocopy = j_p->valueint;
	#if defined(HAVE_DONT_FRAGMENT)
	if ((j_p = cJSON_GetObjectItem(j, "dont_fragment")) != NULL)
	test->settings->dont_fragment = j_p->valueint;
	#endif /* HAVE_DONT_FRAGMENT */
	#if defined(HAVE_SSL)
	if ((j_p = cJSON_GetObjectItem(j, "authtoken")) != NULL)
	test->settings->authtoken = strdup(j_p->valuestring);
	#endif //HAVE_SSL
	if (test->mode && test->protocol->id == Ptcp && has_tcpinfo_retransmits())
test->sender_has_retransmits = 1;	test->sender_has_retransmits = 1;
	if (test->settings->rate)
	cJSON_AddNumberToObject(test->json_start, "target_bitrate", test->settings->rate);
cJSON_Delete(j);	cJSON_Delete(j);
}	}
return r;	return r;
Line 1437 send_results(struct iperf_test *test)	Line 2374 send_results(struct iperf_test *test)
int sender_has_retransmits;	int sender_has_retransmits;
iperf_size_t bytes_transferred;	iperf_size_t bytes_transferred;
int retransmits;	int retransmits;
	struct iperf_time temp_time;
	double start_time, end_time;

j = cJSON_CreateObject();	j = cJSON_CreateObject();
if (j == NULL) {	if (j == NULL) {
Line 1446 send_results(struct iperf_test *test)	Line 2385 send_results(struct iperf_test *test)
cJSON_AddNumberToObject(j, "cpu_util_total", test->cpu_util[0]);	cJSON_AddNumberToObject(j, "cpu_util_total", test->cpu_util[0]);
cJSON_AddNumberToObject(j, "cpu_util_user", test->cpu_util[1]);	cJSON_AddNumberToObject(j, "cpu_util_user", test->cpu_util[1]);
cJSON_AddNumberToObject(j, "cpu_util_system", test->cpu_util[2]);	cJSON_AddNumberToObject(j, "cpu_util_system", test->cpu_util[2]);
if ( ! test->sender )	if ( test->mode == RECEIVER )
sender_has_retransmits = -1;	sender_has_retransmits = -1;
else	else
sender_has_retransmits = test->sender_has_retransmits;	sender_has_retransmits = test->sender_has_retransmits;
cJSON_AddNumberToObject(j, "sender_has_retransmits", sender_has_retransmits);	cJSON_AddNumberToObject(j, "sender_has_retransmits", sender_has_retransmits);
	if ( test->congestion_used ) {
	cJSON_AddStringToObject(j, "congestion_used", test->congestion_used);
	}

/* If on the server and sending server output, then do this */	/* If on the server and sending server output, then do this */
if (test->role == 's' && test->get_server_output) {	if (test->role == 's' && test->get_server_output) {
Line 1476 send_results(struct iperf_test *test)	Line 2418 send_results(struct iperf_test *test)
}	}

cJSON_AddStringToObject(j, "server_output_text", output);	cJSON_AddStringToObject(j, "server_output_text", output);
	free(output);
}	}
}	}

Line 1492 send_results(struct iperf_test *test)	Line 2435 send_results(struct iperf_test *test)
r = -1;	r = -1;
} else {	} else {
cJSON_AddItemToArray(j_streams, j_stream);	cJSON_AddItemToArray(j_streams, j_stream);
bytes_transferred = test->sender ? (sp->result->bytes_sent - sp->result->bytes_sent_omit) : sp->result->bytes_received;	bytes_transferred = sp->sender ? (sp->result->bytes_sent - sp->result->bytes_sent_omit) : sp->result->bytes_received;
retransmits = (test->sender && test->sender_has_retransmits) ? sp->result->stream_retrans : -1;	retransmits = (sp->sender && test->sender_has_retransmits) ? sp->result->stream_retrans : -1;
cJSON_AddNumberToObject(j_stream, "id", sp->id);	cJSON_AddNumberToObject(j_stream, "id", sp->id);
cJSON_AddNumberToObject(j_stream, "bytes", bytes_transferred);	cJSON_AddNumberToObject(j_stream, "bytes", bytes_transferred);
cJSON_AddNumberToObject(j_stream, "retransmits", retransmits);	cJSON_AddNumberToObject(j_stream, "retransmits", retransmits);
cJSON_AddNumberToObject(j_stream, "jitter", sp->jitter);	cJSON_AddNumberToObject(j_stream, "jitter", sp->jitter);
cJSON_AddNumberToObject(j_stream, "errors", sp->cnt_error);	cJSON_AddNumberToObject(j_stream, "errors", sp->cnt_error);
	cJSON_AddNumberToObject(j_stream, "omitted_errors", sp->omitted_cnt_error);
cJSON_AddNumberToObject(j_stream, "packets", sp->packet_count);	cJSON_AddNumberToObject(j_stream, "packets", sp->packet_count);
	cJSON_AddNumberToObject(j_stream, "omitted_packets", sp->omitted_packet_count);

	iperf_time_diff(&sp->result->start_time, &sp->result->start_time, &temp_time);
	start_time = iperf_time_in_secs(&temp_time);
	iperf_time_diff(&sp->result->start_time, &sp->result->end_time, &temp_time);
	end_time = iperf_time_in_secs(&temp_time);
	cJSON_AddNumberToObject(j_stream, "start_time", start_time);
	cJSON_AddNumberToObject(j_stream, "end_time", end_time);

}	}
}	}
if (r == 0 && test->debug) {	if (r == 0 && test->debug) {
printf("send_results\n%s\n", cJSON_Print(j));	char *str = cJSON_Print(j);
	printf("send_results\n%s\n", str);
	cJSON_free(str);
}	}
if (r == 0 && JSON_write(test->ctrl_sck, j) < 0) {	if (r == 0 && JSON_write(test->ctrl_sck, j) < 0) {
i_errno = IESENDRESULTS;	i_errno = IESENDRESULTS;
Line 1525 get_results(struct iperf_test *test)	Line 2480 get_results(struct iperf_test *test)
cJSON *j_cpu_util_total;	cJSON *j_cpu_util_total;
cJSON *j_cpu_util_user;	cJSON *j_cpu_util_user;
cJSON *j_cpu_util_system;	cJSON *j_cpu_util_system;
	cJSON *j_remote_congestion_used;
cJSON *j_sender_has_retransmits;	cJSON *j_sender_has_retransmits;
int result_has_retransmits;	int result_has_retransmits;
cJSON *j_streams;	cJSON *j_streams;
Line 1535 get_results(struct iperf_test *test)	Line 2491 get_results(struct iperf_test *test)
cJSON *j_retransmits;	cJSON *j_retransmits;
cJSON *j_jitter;	cJSON *j_jitter;
cJSON *j_errors;	cJSON *j_errors;
	cJSON *j_omitted_errors;
cJSON *j_packets;	cJSON *j_packets;
	cJSON *j_omitted_packets;
cJSON *j_server_output;	cJSON *j_server_output;
int sid, cerror, pcount;	cJSON j_start_time, j_end_time;
	int sid;
	int64_t cerror, pcount, omitted_cerror, omitted_pcount;
double jitter;	double jitter;
iperf_size_t bytes_transferred;	iperf_size_t bytes_transferred;
int retransmits;	int retransmits;
Line 1557 get_results(struct iperf_test *test)	Line 2517 get_results(struct iperf_test *test)
r = -1;	r = -1;
} else {	} else {
if (test->debug) {	if (test->debug) {
printf("get_results\n%s\n", cJSON_Print(j));	char *str = cJSON_Print(j);
	printf("get_results\n%s\n", str);
	cJSON_free(str);
}	}

test->remote_cpu_util[0] = j_cpu_util_total->valuedouble;	test->remote_cpu_util[0] = j_cpu_util_total->valuedouble;
test->remote_cpu_util[1] = j_cpu_util_user->valuedouble;	test->remote_cpu_util[1] = j_cpu_util_user->valuedouble;
test->remote_cpu_util[2] = j_cpu_util_system->valuedouble;	test->remote_cpu_util[2] = j_cpu_util_system->valuedouble;
result_has_retransmits = j_sender_has_retransmits->valueint;	result_has_retransmits = j_sender_has_retransmits->valueint;
if (! test->sender)	if ( test->mode == RECEIVER ) {
test->sender_has_retransmits = result_has_retransmits;	test->sender_has_retransmits = result_has_retransmits;
	test->other_side_has_retransmits = 0;
	}
	else if ( test->mode == BIDIRECTIONAL )
	test->other_side_has_retransmits = result_has_retransmits;

j_streams = cJSON_GetObjectItem(j, "streams");	j_streams = cJSON_GetObjectItem(j, "streams");
if (j_streams == NULL) {	if (j_streams == NULL) {
i_errno = IERECVRESULTS;	i_errno = IERECVRESULTS;
Line 1583 get_results(struct iperf_test *test)	Line 2550 get_results(struct iperf_test *test)
j_retransmits = cJSON_GetObjectItem(j_stream, "retransmits");	j_retransmits = cJSON_GetObjectItem(j_stream, "retransmits");
j_jitter = cJSON_GetObjectItem(j_stream, "jitter");	j_jitter = cJSON_GetObjectItem(j_stream, "jitter");
j_errors = cJSON_GetObjectItem(j_stream, "errors");	j_errors = cJSON_GetObjectItem(j_stream, "errors");
	j_omitted_errors = cJSON_GetObjectItem(j_stream, "omitted_errors");
j_packets = cJSON_GetObjectItem(j_stream, "packets");	j_packets = cJSON_GetObjectItem(j_stream, "packets");
	j_omitted_packets = cJSON_GetObjectItem(j_stream, "omitted_packets");
	j_start_time = cJSON_GetObjectItem(j_stream, "start_time");
	j_end_time = cJSON_GetObjectItem(j_stream, "end_time");
if (j_id == NULL \|\| j_bytes == NULL \|\| j_retransmits == NULL \|\| j_jitter == NULL \|\| j_errors == NULL \|\| j_packets == NULL) {	if (j_id == NULL \|\| j_bytes == NULL \|\| j_retransmits == NULL \|\| j_jitter == NULL \|\| j_errors == NULL \|\| j_packets == NULL) {
i_errno = IERECVRESULTS;	i_errno = IERECVRESULTS;
r = -1;	r = -1;
	} else if ( (j_omitted_errors == NULL && j_omitted_packets != NULL) \|\| (j_omitted_errors != NULL && j_omitted_packets == NULL) ) {
	/* For backward compatibility allow to not receive "omitted" statistcs */
	i_errno = IERECVRESULTS;
	r = -1;
} else {	} else {
sid = j_id->valueint;	sid = j_id->valueint;
bytes_transferred = j_bytes->valueint;	bytes_transferred = j_bytes->valueint;
Line 1594 get_results(struct iperf_test *test)	Line 2569 get_results(struct iperf_test *test)
jitter = j_jitter->valuedouble;	jitter = j_jitter->valuedouble;
cerror = j_errors->valueint;	cerror = j_errors->valueint;
pcount = j_packets->valueint;	pcount = j_packets->valueint;
	if (j_omitted_packets != NULL) {
	omitted_cerror = j_omitted_errors->valueint;
	omitted_pcount = j_omitted_packets->valueint;
	}
SLIST_FOREACH(sp, &test->streams, streams)	SLIST_FOREACH(sp, &test->streams, streams)
if (sp->id == sid) break;	if (sp->id == sid) break;
if (sp == NULL) {	if (sp == NULL) {
i_errno = IESTREAMID;	i_errno = IESTREAMID;
r = -1;	r = -1;
} else {	} else {
if (test->sender) {	if (sp->sender) {
sp->jitter = jitter;	sp->jitter = jitter;
sp->cnt_error = cerror;	sp->cnt_error = cerror;
sp->packet_count = pcount;	sp->peer_packet_count = pcount;
sp->result->bytes_received = bytes_transferred;	sp->result->bytes_received = bytes_transferred;
	if (j_omitted_packets != NULL) {
	sp->omitted_cnt_error = omitted_cerror;
	sp->peer_omitted_packet_count = omitted_pcount;
	} else {
	sp->peer_omitted_packet_count = sp->omitted_packet_count;
	if (sp->peer_omitted_packet_count > 0) {
	/* -1 indicates unknown error count since it includes the omitted count */
	sp->omitted_cnt_error = (sp->cnt_error > 0) ? -1 : 0;
	} else {
	sp->omitted_cnt_error = sp->cnt_error;
	}
	}
	/*
	* We have to handle the possibility that
	* start_time and end_time might not be
	* available; this is the case for older (pre-3.2)
	* servers.
	*
	* We need to have result structure members to hold
	* the both sides' start_time and end_time.
	*/
	if (j_start_time && j_end_time) {
	sp->result->receiver_time = j_end_time->valuedouble - j_start_time->valuedouble;
	}
	else {
	sp->result->receiver_time = 0.0;
	}
} else {	} else {
	sp->peer_packet_count = pcount;
sp->result->bytes_sent = bytes_transferred;	sp->result->bytes_sent = bytes_transferred;
sp->result->stream_retrans = retransmits;	sp->result->stream_retrans = retransmits;
	if (j_omitted_packets != NULL) {
	sp->peer_omitted_packet_count = omitted_pcount;
	} else {
	sp->peer_omitted_packet_count = sp->peer_packet_count;
	}
	if (j_start_time && j_end_time) {
	sp->result->sender_time = j_end_time->valuedouble - j_start_time->valuedouble;
	}
	else {
	sp->result->sender_time = 0.0;
	}
}	}
}	}
}	}
Line 1633 get_results(struct iperf_test *test)	Line 2651 get_results(struct iperf_test *test)
}	}
}	}
}	}

	j_remote_congestion_used = cJSON_GetObjectItem(j, "congestion_used");
	if (j_remote_congestion_used != NULL) {
	test->remote_congestion_used = strdup(j_remote_congestion_used->valuestring);
	}

cJSON_Delete(j);	cJSON_Delete(j);
}	}
return r;	return r;
Line 1659 JSON_write(int fd, cJSON *json)	Line 2683 JSON_write(int fd, cJSON *json)
if (Nwrite(fd, str, hsize, Ptcp) < 0)	if (Nwrite(fd, str, hsize, Ptcp) < 0)
r = -1;	r = -1;
}	}
free(str);	cJSON_free(str);
}	}
return r;	return r;
}	}
Line 1670 static cJSON *	Line 2694 static cJSON *
JSON_read(int fd)	JSON_read(int fd)
{	{
uint32_t hsize, nsize;	uint32_t hsize, nsize;
	size_t strsize;
char *str;	char *str;
cJSON *json = NULL;	cJSON *json = NULL;
int rc;	int rc;
Line 1682 JSON_read(int fd)	Line 2707 JSON_read(int fd)
if (Nread(fd, (char*) &nsize, sizeof(nsize), Ptcp) >= 0) {	if (Nread(fd, (char*) &nsize, sizeof(nsize), Ptcp) >= 0) {
hsize = ntohl(nsize);	hsize = ntohl(nsize);
/* Allocate a buffer to hold the JSON */	/* Allocate a buffer to hold the JSON */
str = (char ) calloc(sizeof(char), hsize+1); / +1 for trailing null */	strsize = hsize + 1; /* +1 for trailing NULL */
	if (strsize) {
	str = (char *) calloc(sizeof(char), strsize);
if (str != NULL) {	if (str != NULL) {
rc = Nread(fd, str, hsize, Ptcp);	rc = Nread(fd, str, hsize, Ptcp);
if (rc >= 0) {	if (rc >= 0) {
Line 1701 JSON_read(int fd)	Line 2728 JSON_read(int fd)
}	}
}	}
free(str);	free(str);
	}
	else {
	printf("WARNING: Data length overflow\n");
	}
}	}
return json;	return json;
}	}
Line 1754 connect_msg(struct iperf_stream *sp)	Line 2785 connect_msg(struct iperf_stream *sp)
if (sp->test->json_output)	if (sp->test->json_output)
cJSON_AddItemToArray(sp->test->json_connected, iperf_json_printf("socket: %d local_host: %s local_port: %d remote_host: %s remote_port: %d", (int64_t) sp->socket, ipl, (int64_t) lport, ipr, (int64_t) rport));	cJSON_AddItemToArray(sp->test->json_connected, iperf_json_printf("socket: %d local_host: %s local_port: %d remote_host: %s remote_port: %d", (int64_t) sp->socket, ipl, (int64_t) lport, ipr, (int64_t) rport));
else	else
iprintf(sp->test, report_connected, sp->socket, ipl, lport, ipr, rport);	iperf_printf(sp->test, report_connected, sp->socket, ipl, lport, ipr, rport);
}	}


Line 1781 iperf_new_test()	Line 2812 iperf_new_test()
}	}
memset(test->settings, 0, sizeof(struct iperf_settings));	memset(test->settings, 0, sizeof(struct iperf_settings));

	test->bitrate_limit_intervals_traffic_bytes = (iperf_size_t ) malloc(sizeof(iperf_size_t) MAX_INTERVAL);
	if (!test->bitrate_limit_intervals_traffic_bytes) {
	free(test->settings);
	free(test);
	i_errno = IENEWTEST;
	return NULL;
	}
	memset(test->bitrate_limit_intervals_traffic_bytes, 0, sizeof(sizeof(iperf_size_t) * MAX_INTERVAL));

/* By default all output goes to stdout */	/* By default all output goes to stdout */
test->outfile = stdout;	test->outfile = stdout;

Line 1806 protocol_new(void)	Line 2846 protocol_new(void)
void	void
protocol_free(struct protocol *proto)	protocol_free(struct protocol *proto)
{	{
free(proto);	free(proto);
}	}

/**************************************************************************/	/**************************************************************************/
Line 1814 int	Line 2854 int
iperf_defaults(struct iperf_test *testp)	iperf_defaults(struct iperf_test *testp)
{	{
struct protocol tcp, udp;	struct protocol tcp, udp;
#if defined(HAVE_SCTP)	#if defined(HAVE_SCTP_H)
struct protocol *sctp;	struct protocol *sctp;
#endif /* HAVE_SCTP */	#endif /* HAVE_SCTP_H */

testp->omit = OMIT;	testp->omit = OMIT;
testp->duration = DURATION;	testp->duration = DURATION;
Line 1828 iperf_defaults(struct iperf_test *testp)	Line 2868 iperf_defaults(struct iperf_test *testp)
CPU_ZERO(&testp->cpumask);	CPU_ZERO(&testp->cpumask);
#endif /* HAVE_CPUSET_SETAFFINITY */	#endif /* HAVE_CPUSET_SETAFFINITY */
testp->title = NULL;	testp->title = NULL;
	testp->extra_data = NULL;
testp->congestion = NULL;	testp->congestion = NULL;
	testp->congestion_used = NULL;
	testp->remote_congestion_used = NULL;
testp->server_port = PORT;	testp->server_port = PORT;
testp->ctrl_sck = -1;	testp->ctrl_sck = -1;
	testp->listener = -1;
testp->prot_listener = -1;	testp->prot_listener = -1;
	testp->other_side_has_retransmits = 0;

testp->stats_callback = iperf_stats_callback;	testp->stats_callback = iperf_stats_callback;
testp->reporter_callback = iperf_reporter_callback;	testp->reporter_callback = iperf_reporter_callback;
Line 1844 iperf_defaults(struct iperf_test *testp)	Line 2889 iperf_defaults(struct iperf_test *testp)
testp->settings->socket_bufsize = 0; /* use autotuning */	testp->settings->socket_bufsize = 0; /* use autotuning */
testp->settings->blksize = DEFAULT_TCP_BLKSIZE;	testp->settings->blksize = DEFAULT_TCP_BLKSIZE;
testp->settings->rate = 0;	testp->settings->rate = 0;
	testp->settings->bitrate_limit = 0;
	testp->settings->bitrate_limit_interval = 5;
	testp->settings->bitrate_limit_stats_per_interval = 0;
	testp->settings->fqrate = 0;
	testp->settings->pacing_timer = DEFAULT_PACING_TIMER;
testp->settings->burst = 0;	testp->settings->burst = 0;
testp->settings->mss = 0;	testp->settings->mss = 0;
testp->settings->bytes = 0;	testp->settings->bytes = 0;
testp->settings->blocks = 0;	testp->settings->blocks = 0;
	testp->settings->connect_timeout = -1;
	testp->settings->rcv_timeout.secs = DEFAULT_NO_MSG_RCVD_TIMEOUT / SEC_TO_mS;
	testp->settings->rcv_timeout.usecs = (DEFAULT_NO_MSG_RCVD_TIMEOUT % SEC_TO_mS) * mS_TO_US;
	testp->zerocopy = 0;

memset(testp->cookie, 0, COOKIE_SIZE);	memset(testp->cookie, 0, COOKIE_SIZE);

testp->multisend = 10; /* arbitrary */	testp->multisend = 10; /* arbitrary */
Line 1888 iperf_defaults(struct iperf_test *testp)	Line 2943 iperf_defaults(struct iperf_test *testp)

set_protocol(testp, Ptcp);	set_protocol(testp, Ptcp);

#if defined(HAVE_SCTP)	#if defined(HAVE_SCTP_H)
sctp = protocol_new();	sctp = protocol_new();
if (!sctp) {	if (!sctp) {
protocol_free(tcp);	protocol_free(tcp);
Line 1906 iperf_defaults(struct iperf_test *testp)	Line 2961 iperf_defaults(struct iperf_test *testp)
sctp->init = iperf_sctp_init;	sctp->init = iperf_sctp_init;

SLIST_INSERT_AFTER(udp, sctp, protocols);	SLIST_INSERT_AFTER(udp, sctp, protocols);
#endif /* HAVE_SCTP */	#endif /* HAVE_SCTP_H */

testp->on_new_stream = iperf_on_new_stream;	testp->on_new_stream = iperf_on_new_stream;
testp->on_test_start = iperf_on_test_start;	testp->on_test_start = iperf_on_test_start;
Line 1932 iperf_free_test(struct iperf_test *test)	Line 2987 iperf_free_test(struct iperf_test *test)
SLIST_REMOVE_HEAD(&test->streams, streams);	SLIST_REMOVE_HEAD(&test->streams, streams);
iperf_free_stream(sp);	iperf_free_stream(sp);
}	}

if (test->server_hostname)	if (test->server_hostname)
free(test->server_hostname);	free(test->server_hostname);
if (test->tmp_template)	if (test->tmp_template)
free(test->tmp_template);	free(test->tmp_template);
if (test->bind_address)	if (test->bind_address)
free(test->bind_address);	free(test->bind_address);
	if (test->bind_dev)
	free(test->bind_dev);
if (!TAILQ_EMPTY(&test->xbind_addrs)) {	if (!TAILQ_EMPTY(&test->xbind_addrs)) {
struct xbind_entry *xbe;	struct xbind_entry *xbe;

Line 1951 iperf_free_test(struct iperf_test *test)	Line 3007 iperf_free_test(struct iperf_test *test)
free(xbe);	free(xbe);
}	}
}	}
	#if defined(HAVE_SSL)

	if (test->server_rsa_private_key)
	EVP_PKEY_free(test->server_rsa_private_key);
	test->server_rsa_private_key = NULL;

	free(test->settings->authtoken);
	test->settings->authtoken = NULL;

	free(test->settings->client_username);
	test->settings->client_username = NULL;

	free(test->settings->client_password);
	test->settings->client_password = NULL;

	if (test->settings->client_rsa_pubkey)
	EVP_PKEY_free(test->settings->client_rsa_pubkey);
	test->settings->client_rsa_pubkey = NULL;
	#endif /* HAVE_SSL */

if (test->settings)	if (test->settings)
free(test->settings);	free(test->settings);
if (test->title)	if (test->title)
free(test->title);	free(test->title);
	if (test->extra_data)
	free(test->extra_data);
if (test->congestion)	if (test->congestion)
free(test->congestion);	free(test->congestion);
	if (test->congestion_used)
	free(test->congestion_used);
	if (test->remote_congestion_used)
	free(test->remote_congestion_used);
	if (test->timestamp_format)
	free(test->timestamp_format);
if (test->omit_timer != NULL)	if (test->omit_timer != NULL)
tmr_cancel(test->omit_timer);	tmr_cancel(test->omit_timer);
if (test->timer != NULL)	if (test->timer != NULL)
Line 1969 iperf_free_test(struct iperf_test *test)	Line 3053 iperf_free_test(struct iperf_test *test)
/* Free protocol list */	/* Free protocol list */
while (!SLIST_EMPTY(&test->protocols)) {	while (!SLIST_EMPTY(&test->protocols)) {
prot = SLIST_FIRST(&test->protocols);	prot = SLIST_FIRST(&test->protocols);
SLIST_REMOVE_HEAD(&test->protocols, protocols);	SLIST_REMOVE_HEAD(&test->protocols, protocols);
free(prot);	free(prot);
}	}

	if (test->logfile) {
	free(test->logfile);
	test->logfile = NULL;
	iperf_close_logfile(test);
	}

if (test->server_output_text) {	if (test->server_output_text) {
free(test->server_output_text);	free(test->server_output_text);
test->server_output_text = NULL;	test->server_output_text = NULL;
Line 2004 iperf_free_test(struct iperf_test *test)	Line 3094 iperf_free_test(struct iperf_test *test)
}	}
}	}

	/* Free interval's traffic array for average rate calculations */
	if (test->bitrate_limit_intervals_traffic_bytes != NULL)
	free(test->bitrate_limit_intervals_traffic_bytes);

/* XXX: Why are we setting these values to NULL? */	/* XXX: Why are we setting these values to NULL? */
// test->streams = NULL;	// test->streams = NULL;
test->stats_callback = NULL;	test->stats_callback = NULL;
Line 2016 void	Line 3110 void
iperf_reset_test(struct iperf_test *test)	iperf_reset_test(struct iperf_test *test)
{	{
struct iperf_stream *sp;	struct iperf_stream *sp;
	int i;

	iperf_close_logfile(test);

/* Free streams */	/* Free streams */
while (!SLIST_EMPTY(&test->streams)) {	while (!SLIST_EMPTY(&test->streams)) {
sp = SLIST_FIRST(&test->streams);	sp = SLIST_FIRST(&test->streams);
Line 2043 iperf_reset_test(struct iperf_test *test)	Line 3140 iperf_reset_test(struct iperf_test *test)

SLIST_INIT(&test->streams);	SLIST_INIT(&test->streams);

	if (test->remote_congestion_used)
	free(test->remote_congestion_used);
	test->remote_congestion_used = NULL;
test->role = 's';	test->role = 's';
test->sender = 0;	test->mode = RECEIVER;
test->sender_has_retransmits = 0;	test->sender_has_retransmits = 0;
set_protocol(test, Ptcp);	set_protocol(test, Ptcp);
test->omit = OMIT;	test->omit = OMIT;
Line 2054 iperf_reset_test(struct iperf_test *test)	Line 3154 iperf_reset_test(struct iperf_test *test)
CPU_ZERO(&test->cpumask);	CPU_ZERO(&test->cpumask);
#endif /* HAVE_CPUSET_SETAFFINITY */	#endif /* HAVE_CPUSET_SETAFFINITY */
test->state = 0;	test->state = 0;

test->ctrl_sck = -1;	test->ctrl_sck = -1;
	test->listener = -1;
test->prot_listener = -1;	test->prot_listener = -1;

test->bytes_sent = 0;	test->bytes_sent = 0;
test->blocks_sent = 0;	test->blocks_sent = 0;

	test->bytes_received = 0;
	test->blocks_received = 0;

	test->other_side_has_retransmits = 0;

	test->bitrate_limit_stats_count = 0;
	test->bitrate_limit_last_interval_index = 0;
	test->bitrate_limit_exceeded = 0;

	for (i = 0; i < MAX_INTERVAL; i++)
	test->bitrate_limit_intervals_traffic_bytes[i] = 0;

test->reverse = 0;	test->reverse = 0;
	test->bidirectional = 0;
test->no_delay = 0;	test->no_delay = 0;

FD_ZERO(&test->read_set);	FD_ZERO(&test->read_set);
FD_ZERO(&test->write_set);	FD_ZERO(&test->write_set);

test->num_streams = 1;	test->num_streams = 1;
test->settings->socket_bufsize = 0;	test->settings->socket_bufsize = 0;
test->settings->blksize = DEFAULT_TCP_BLKSIZE;	test->settings->blksize = DEFAULT_TCP_BLKSIZE;
test->settings->rate = 0;	test->settings->rate = 0;
test->settings->burst = 0;	test->settings->burst = 0;
test->settings->mss = 0;	test->settings->mss = 0;
	test->settings->tos = 0;
	test->settings->dont_fragment = 0;
	test->zerocopy = 0;

	#if defined(HAVE_SSL)
	if (test->settings->authtoken) {
	free(test->settings->authtoken);
	test->settings->authtoken = NULL;
	}
	if (test->settings->client_username) {
	free(test->settings->client_username);
	test->settings->client_username = NULL;
	}
	if (test->settings->client_password) {
	free(test->settings->client_password);
	test->settings->client_password = NULL;
	}
	if (test->settings->client_rsa_pubkey) {
	EVP_PKEY_free(test->settings->client_rsa_pubkey);
	test->settings->client_rsa_pubkey = NULL;
	}
	#endif /* HAVE_SSL */

memset(test->cookie, 0, COOKIE_SIZE);	memset(test->cookie, 0, COOKIE_SIZE);
test->multisend = 10; /* arbitrary */	test->multisend = 10; /* arbitrary */
test->udp_counters_64bit = 0;	test->udp_counters_64bit = 0;
	if (test->title) {
	free(test->title);
	test->title = NULL;
	}
	if (test->extra_data) {
	free(test->extra_data);
	test->extra_data = NULL;
	}

/* Free output line buffers, if any (on the server only) */	/* Free output line buffers, if any (on the server only) */
struct iperf_textline *t;	struct iperf_textline *t;
Line 2094 iperf_reset_test(struct iperf_test *test)	Line 3239 iperf_reset_test(struct iperf_test *test)
void	void
iperf_reset_stats(struct iperf_test *test)	iperf_reset_stats(struct iperf_test *test)
{	{
struct timeval now;	struct iperf_time now;
struct iperf_stream *sp;	struct iperf_stream *sp;
struct iperf_stream_result *rp;	struct iperf_stream_result *rp;

test->bytes_sent = 0;	test->bytes_sent = 0;
test->blocks_sent = 0;	test->blocks_sent = 0;
gettimeofday(&now, NULL);	iperf_time_now(&now);
SLIST_FOREACH(sp, &test->streams, streams) {	SLIST_FOREACH(sp, &test->streams, streams) {
sp->omitted_packet_count = sp->packet_count;	sp->omitted_packet_count = sp->packet_count;
sp->omitted_cnt_error = sp->cnt_error;	sp->omitted_cnt_error = sp->cnt_error;
Line 2110 iperf_reset_stats(struct iperf_test *test)	Line 3255 iperf_reset_stats(struct iperf_test *test)
rp->bytes_sent_omit = rp->bytes_sent;	rp->bytes_sent_omit = rp->bytes_sent;
rp->bytes_received = 0;	rp->bytes_received = 0;
rp->bytes_sent_this_interval = rp->bytes_received_this_interval = 0;	rp->bytes_sent_this_interval = rp->bytes_received_this_interval = 0;
if (test->sender && test->sender_has_retransmits) {	if (test->sender_has_retransmits == 1) {
struct iperf_interval_results ir; /* temporary results structure */	struct iperf_interval_results ir; /* temporary results structure */
save_tcpinfo(sp, &ir);	save_tcpinfo(sp, &ir);
rp->stream_prev_total_retrans = get_total_retransmits(&ir);	rp->stream_prev_total_retrans = get_total_retransmits(&ir);
Line 2133 iperf_stats_callback(struct iperf_test *test)	Line 3278 iperf_stats_callback(struct iperf_test *test)
struct iperf_stream *sp;	struct iperf_stream *sp;
struct iperf_stream_result *rp = NULL;	struct iperf_stream_result *rp = NULL;
struct iperf_interval_results *irp, temp;	struct iperf_interval_results *irp, temp;
	struct iperf_time temp_time;
	iperf_size_t total_interval_bytes_transferred = 0;

temp.omitted = test->omitting;	temp.omitted = test->omitting;
SLIST_FOREACH(sp, &test->streams, streams) {	SLIST_FOREACH(sp, &test->streams, streams) {
rp = sp->result;	rp = sp->result;
	temp.bytes_transferred = sp->sender ? rp->bytes_sent_this_interval : rp->bytes_received_this_interval;

temp.bytes_transferred = test->sender ? rp->bytes_sent_this_interval : rp->bytes_received_this_interval;	// Total bytes transferred this interval
	total_interval_bytes_transferred += rp->bytes_sent_this_interval + rp->bytes_received_this_interval;

irp = TAILQ_LAST(&rp->interval_results, irlisthead);	irp = TAILQ_LAST(&rp->interval_results, irlisthead);
/* result->end_time contains timestamp of previous interval */	/* result->end_time contains timestamp of previous interval */
if ( irp != NULL ) /* not the 1st interval */	if ( irp != NULL ) /* not the 1st interval */
memcpy(&temp.interval_start_time, &rp->end_time, sizeof(struct timeval));	memcpy(&temp.interval_start_time, &rp->end_time, sizeof(struct iperf_time));
else /* or use timestamp from beginning */	else /* or use timestamp from beginning */
memcpy(&temp.interval_start_time, &rp->start_time, sizeof(struct timeval));	memcpy(&temp.interval_start_time, &rp->start_time, sizeof(struct iperf_time));
/* now save time of end of this interval */	/* now save time of end of this interval */
gettimeofday(&rp->end_time, NULL);	iperf_time_now(&rp->end_time);
memcpy(&temp.interval_end_time, &rp->end_time, sizeof(struct timeval));	memcpy(&temp.interval_end_time, &rp->end_time, sizeof(struct iperf_time));
temp.interval_duration = timeval_diff(&temp.interval_start_time, &temp.interval_end_time);	iperf_time_diff(&temp.interval_start_time, &temp.interval_end_time, &temp_time);
//temp.interval_duration = timeval_diff(&temp.interval_start_time, &temp.interval_end_time);	temp.interval_duration = iperf_time_in_secs(&temp_time);
if (test->protocol->id == Ptcp) {	if (test->protocol->id == Ptcp) {
if ( has_tcpinfo()) {	if ( has_tcpinfo()) {
save_tcpinfo(sp, &temp);	save_tcpinfo(sp, &temp);
if (test->sender && test->sender_has_retransmits) {	if (test->sender_has_retransmits == 1) {
long total_retrans = get_total_retransmits(&temp);	long total_retrans = get_total_retransmits(&temp);
temp.interval_retrans = total_retrans - rp->stream_prev_total_retrans;	temp.interval_retrans = total_retrans - rp->stream_prev_total_retrans;
rp->stream_retrans += temp.interval_retrans;	rp->stream_retrans += temp.interval_retrans;
Line 2164 iperf_stats_callback(struct iperf_test *test)	Line 3313 iperf_stats_callback(struct iperf_test *test)
if (temp.snd_cwnd > rp->stream_max_snd_cwnd) {	if (temp.snd_cwnd > rp->stream_max_snd_cwnd) {
rp->stream_max_snd_cwnd = temp.snd_cwnd;	rp->stream_max_snd_cwnd = temp.snd_cwnd;
}	}

	temp.snd_wnd = get_snd_wnd(&temp);
	if (temp.snd_wnd > rp->stream_max_snd_wnd) {
	rp->stream_max_snd_wnd = temp.snd_wnd;
	}

temp.rtt = get_rtt(&temp);	temp.rtt = get_rtt(&temp);
if (temp.rtt > rp->stream_max_rtt) {	if (temp.rtt > rp->stream_max_rtt) {
rp->stream_max_rtt = temp.rtt;	rp->stream_max_rtt = temp.rtt;
Line 2175 iperf_stats_callback(struct iperf_test *test)	Line 3329 iperf_stats_callback(struct iperf_test *test)
}	}
rp->stream_sum_rtt += temp.rtt;	rp->stream_sum_rtt += temp.rtt;
rp->stream_count_rtt++;	rp->stream_count_rtt++;

	temp.rttvar = get_rttvar(&temp);
	temp.pmtu = get_pmtu(&temp);
}	}
}	}
} else {	} else {
Line 2195 iperf_stats_callback(struct iperf_test *test)	Line 3352 iperf_stats_callback(struct iperf_test *test)
add_to_interval_list(rp, &temp);	add_to_interval_list(rp, &temp);
rp->bytes_sent_this_interval = rp->bytes_received_this_interval = 0;	rp->bytes_sent_this_interval = rp->bytes_received_this_interval = 0;
}	}

	/* Verify that total server's throughput is not above specified limit */
	if (test->role == 's') {
	iperf_check_total_rate(test, total_interval_bytes_transferred);
	}
}	}

/**	/**
Line 2206 iperf_stats_callback(struct iperf_test *test)	Line 3368 iperf_stats_callback(struct iperf_test *test)
static void	static void
iperf_print_intermediate(struct iperf_test *test)	iperf_print_intermediate(struct iperf_test *test)
{	{
char ubuf[UNIT_LEN];
char nbuf[UNIT_LEN];
struct iperf_stream *sp = NULL;	struct iperf_stream *sp = NULL;
struct iperf_interval_results *irp;	struct iperf_interval_results *irp;
iperf_size_t bytes = 0;	struct iperf_time temp_time;
double bandwidth;
int retransmits = 0;
double start_time, end_time;
cJSON *json_interval;	cJSON *json_interval;
cJSON *json_interval_streams;	cJSON *json_interval_streams;
int total_packets = 0, lost_packets = 0;
double avg_jitter = 0.0, lost_percent;

	int lower_mode, upper_mode;
	int current_mode;

	/*
	* Due to timing oddities, there can be cases, especially on the
	* server side, where at the end of a test there is a fairly short
	* interval with no data transferred. This could caused by
	* the control and data flows sharing the same path in the network,
	* and having the control messages for stopping the test being
	* queued behind the data packets.
	*
	* We'd like to try to omit that last interval when it happens, to
	* avoid cluttering data and output with useless stuff.
	* So we're going to try to ignore very short intervals (less than
	* 10% of the interval time) that have no data.
	*/
	int interval_ok = 0;
	SLIST_FOREACH(sp, &test->streams, streams) {
	irp = TAILQ_LAST(&sp->result->interval_results, irlisthead);
	if (irp) {
	iperf_time_diff(&irp->interval_start_time, &irp->interval_end_time, &temp_time);
	double interval_len = iperf_time_in_secs(&temp_time);
	if (test->debug) {
	printf("interval_len %f bytes_transferred %" PRIu64 "\n", interval_len, irp->bytes_transferred);
	}

	/*
	* If the interval is at least 10% the normal interval
	* length, or if there were actual bytes transferred,
	* then we want to keep this interval.
	*/
	if (interval_len >= test->stats_interval * 0.10 \|\|
	irp->bytes_transferred > 0) {
	interval_ok = 1;
	if (test->debug) {
	printf("interval forces keep\n");
	}
	}
	}
	}
	if (!interval_ok) {
	if (test->debug) {
	printf("ignoring short interval with no data\n");
	}
	return;
	}

if (test->json_output) {	if (test->json_output) {
json_interval = cJSON_CreateObject();	json_interval = cJSON_CreateObject();
if (json_interval == NULL)	if (json_interval == NULL)
Line 2233 iperf_print_intermediate(struct iperf_test *test)	Line 3435 iperf_print_intermediate(struct iperf_test *test)
json_interval_streams = NULL;	json_interval_streams = NULL;
}	}

SLIST_FOREACH(sp, &test->streams, streams) {	/*
print_interval_results(test, sp, json_interval_streams);	* We must to sum streams separately.
/* sum up all streams */	* For bidirectional mode we must to display
irp = TAILQ_LAST(&sp->result->interval_results, irlisthead);	* information about sender and receiver streams.
if (irp == NULL) {	* For client side we must handle sender streams
iperf_err(test, "iperf_print_intermediate error: interval_results is NULL");	* firstly and receiver streams for server side.
return;	* The following design allows us to do this.
}	*/
bytes += irp->bytes_transferred;
if (test->protocol->id == Ptcp) {	if (test->mode == BIDIRECTIONAL) {
if (test->sender && test->sender_has_retransmits) {	if (test->role == 'c') {
retransmits += irp->interval_retrans;	lower_mode = -1;
}	upper_mode = 0;
} else {	} else {
total_packets += irp->interval_packet_count;	lower_mode = 0;
lost_packets += irp->interval_cnt_error;	upper_mode = 1;
avg_jitter += irp->jitter;	}
}	} else {
	lower_mode = test->mode;
	upper_mode = lower_mode;
}	}

/* next build string with sum of all streams */
if (test->num_streams > 1 \|\| test->json_output) {
sp = SLIST_FIRST(&test->streams); /* reset back to 1st stream */
/* Only do this of course if there was a first stream */
if (sp) {
irp = TAILQ_LAST(&sp->result->interval_results, irlisthead); /* use 1st stream for timing info */

unit_snprintf(ubuf, UNIT_LEN, (double) bytes, 'A');	for (current_mode = lower_mode; current_mode <= upper_mode; ++current_mode) {
bandwidth = (double) bytes / (double) irp->interval_duration;	char ubuf[UNIT_LEN];
unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);	char nbuf[UNIT_LEN];
	char mbuf[UNIT_LEN];
	char zbuf[] = " ";

start_time = timeval_diff(&sp->result->start_time,&irp->interval_start_time);	iperf_size_t bytes = 0;
end_time = timeval_diff(&sp->result->start_time,&irp->interval_end_time);	double bandwidth;
if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {	int retransmits = 0;
if (test->sender && test->sender_has_retransmits) {	double start_time, end_time;
/* Interval sum, TCP with retransmits. */
if (test->json_output)	int64_t total_packets = 0, lost_packets = 0;
cJSON_AddItemToObject(json_interval, "sum", iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f retransmits: %d omitted: %b", (double) start_time, (double) end_time, (double) irp->interval_duration, (int64_t) bytes, bandwidth * 8, (int64_t) retransmits, irp->omitted)); /* XXX irp->omitted or test->omitting? */	double avg_jitter = 0.0, lost_percent;
else	int stream_must_be_sender = current_mode * current_mode;
iprintf(test, report_sum_bw_retrans_format, start_time, end_time, ubuf, nbuf, retransmits, irp->omitted?report_omitted:""); /* XXX irp->omitted or test->omitting? */
} else {	char *sum_name;
/* Interval sum, TCP without retransmits. */
if (test->json_output)	/* Print stream role just for bidirectional mode. */
cJSON_AddItemToObject(json_interval, "sum", iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f omitted: %b", (double) start_time, (double) end_time, (double) irp->interval_duration, (int64_t) bytes, bandwidth * 8, test->omitting));
else	if (test->mode == BIDIRECTIONAL) {
iprintf(test, report_sum_bw_format, start_time, end_time, ubuf, nbuf, test->omitting?report_omitted:"");	sprintf(mbuf, "[%s-%s]", stream_must_be_sender?"TX":"RX", test->role == 'c'?"C":"S");
}	} else {
} else {	mbuf[0] = '\0';
/* Interval sum, UDP. */	zbuf[0] = '\0';
if (test->sender) {	}
if (test->json_output)
cJSON_AddItemToObject(json_interval, "sum", iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f packets: %d omitted: %b", (double) start_time, (double) end_time, (double) irp->interval_duration, (int64_t) bytes, bandwidth * 8, (int64_t) total_packets, test->omitting));	SLIST_FOREACH(sp, &test->streams, streams) {
else	if (sp->sender == stream_must_be_sender) {
iprintf(test, report_sum_bw_udp_sender_format, start_time, end_time, ubuf, nbuf, total_packets, test->omitting?report_omitted:"");	print_interval_results(test, sp, json_interval_streams);
} else {	/* sum up all streams */
avg_jitter /= test->num_streams;	irp = TAILQ_LAST(&sp->result->interval_results, irlisthead);
if (total_packets > 0) {	if (irp == NULL) {
lost_percent = 100.0 * lost_packets / total_packets;	iperf_err(test,
}	"iperf_print_intermediate error: interval_results is NULL");
else {	return;
lost_percent = 0.0;	}
}	bytes += irp->bytes_transferred;
if (test->json_output)	if (test->protocol->id == Ptcp) {
cJSON_AddItemToObject(json_interval, "sum", iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f omitted: %b", (double) start_time, (double) end_time, (double) irp->interval_duration, (int64_t) bytes, bandwidth * 8, (double) avg_jitter * 1000.0, (int64_t) lost_packets, (int64_t) total_packets, (double) lost_percent, test->omitting));	if (test->sender_has_retransmits == 1) {
else	retransmits += irp->interval_retrans;
iprintf(test, report_sum_bw_udp_format, start_time, end_time, ubuf, nbuf, avg_jitter * 1000.0, lost_packets, total_packets, lost_percent, test->omitting?report_omitted:"");	}
}	} else {
}	total_packets += irp->interval_packet_count;
}	lost_packets += irp->interval_cnt_error;
	avg_jitter += irp->jitter;
	}
	}
	}

	/* next build string with sum of all streams */
	if (test->num_streams > 1 \|\| test->json_output) {
	/*
	* With BIDIR give a different JSON object name to the one sent/receive sums.
	* The different name is given to the data sent from the server, which is
	* the "reverse" channel. This makes sure that the name reported on the server
	* and client are compatible, and the names are the same as with non-bidir,
	* except for when reverse is used.
	*/
	sum_name = "sum";
	if (test->mode == BIDIRECTIONAL) {
	if ((test->role == 'c' && !stream_must_be_sender) \|\|
	(test->role != 'c' && stream_must_be_sender))
	{
	sum_name = "sum_bidir_reverse";
	}
	}

	sp = SLIST_FIRST(&test->streams); /* reset back to 1st stream */
	/* Only do this of course if there was a first stream */
	if (sp) {
	irp = TAILQ_LAST(&sp->result->interval_results, irlisthead); /* use 1st stream for timing info */

	unit_snprintf(ubuf, UNIT_LEN, (double) bytes, 'A');
	bandwidth = (double) bytes / (double) irp->interval_duration;
	unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);

	iperf_time_diff(&sp->result->start_time,&irp->interval_start_time, &temp_time);
	start_time = iperf_time_in_secs(&temp_time);
	iperf_time_diff(&sp->result->start_time,&irp->interval_end_time, &temp_time);
	end_time = iperf_time_in_secs(&temp_time);
	if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {
	if (test->sender_has_retransmits == 1 && stream_must_be_sender) {
	/* Interval sum, TCP with retransmits. */
	if (test->json_output)
	cJSON_AddItemToObject(json_interval, sum_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f retransmits: %d omitted: %b sender: %b", (double) start_time, (double) end_time, (double) irp->interval_duration, (int64_t) bytes, bandwidth * 8, (int64_t) retransmits, irp->omitted, stream_must_be_sender)); /* XXX irp->omitted or test->omitting? */
	else
	iperf_printf(test, report_sum_bw_retrans_format, mbuf, start_time, end_time, ubuf, nbuf, retransmits, irp->omitted?report_omitted:""); /* XXX irp->omitted or test->omitting? */
	} else {
	/* Interval sum, TCP without retransmits. */
	if (test->json_output)
	cJSON_AddItemToObject(json_interval, sum_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f omitted: %b sender: %b", (double) start_time, (double) end_time, (double) irp->interval_duration, (int64_t) bytes, bandwidth * 8, test->omitting, stream_must_be_sender));
	else
	iperf_printf(test, report_sum_bw_format, mbuf, start_time, end_time, ubuf, nbuf, test->omitting?report_omitted:"");
	}
	} else {
	/* Interval sum, UDP. */
	if (stream_must_be_sender) {
	if (test->json_output)
	cJSON_AddItemToObject(json_interval, sum_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f packets: %d omitted: %b sender: %b", (double) start_time, (double) end_time, (double) irp->interval_duration, (int64_t) bytes, bandwidth * 8, (int64_t) total_packets, test->omitting, stream_must_be_sender));
	else
	iperf_printf(test, report_sum_bw_udp_sender_format, mbuf, start_time, end_time, ubuf, nbuf, zbuf, total_packets, test->omitting?report_omitted:"");
	} else {
	avg_jitter /= test->num_streams;
	if (total_packets > 0) {
	lost_percent = 100.0 * lost_packets / total_packets;
	}
	else {
	lost_percent = 0.0;
	}
	if (test->json_output)
	cJSON_AddItemToObject(json_interval, sum_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f omitted: %b sender: %b", (double) start_time, (double) end_time, (double) irp->interval_duration, (int64_t) bytes, bandwidth * 8, (double) avg_jitter * 1000.0, (int64_t) lost_packets, (int64_t) total_packets, (double) lost_percent, test->omitting, stream_must_be_sender));
	else
	iperf_printf(test, report_sum_bw_udp_format, mbuf, start_time, end_time, ubuf, nbuf, avg_jitter * 1000.0, lost_packets, total_packets, lost_percent, test->omitting?report_omitted:"");
	}
	}
	}
	}
}	}
}	}

Line 2313 iperf_print_results(struct iperf_test *test)	Line 3586 iperf_print_results(struct iperf_test *test)
{	{

cJSON *json_summary_streams = NULL;	cJSON *json_summary_streams = NULL;
cJSON *json_summary_stream = NULL;
int total_retransmits = 0;
int total_packets = 0, lost_packets = 0;
char ubuf[UNIT_LEN];
char nbuf[UNIT_LEN];
struct stat sb;
char sbuf[UNIT_LEN];
struct iperf_stream *sp = NULL;
iperf_size_t bytes_sent, total_sent = 0;
iperf_size_t bytes_received, total_received = 0;
double start_time, end_time, avg_jitter = 0.0, lost_percent;
double bandwidth;

	int lower_mode, upper_mode;
	int current_mode;

	char sum_sent_name, sum_received_name, *sum_name;

	int tmp_sender_has_retransmits = test->sender_has_retransmits;

/* print final summary for all intervals */	/* print final summary for all intervals */

if (test->json_output) {	if (test->json_output) {
Line 2334 iperf_print_results(struct iperf_test *test)	Line 3602 iperf_print_results(struct iperf_test *test)
return;	return;
cJSON_AddItemToObject(test->json_end, "streams", json_summary_streams);	cJSON_AddItemToObject(test->json_end, "streams", json_summary_streams);
} else {	} else {
iprintf(test, "%s", report_bw_separator);	iperf_printf(test, "%s", report_bw_separator);
if (test->verbose)	if (test->verbose)
iprintf(test, "%s", report_summary);	iperf_printf(test, "%s", report_summary);
if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {	if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {
if (test->sender_has_retransmits)	if (test->sender_has_retransmits \|\| test->other_side_has_retransmits) {
iprintf(test, "%s", report_bw_retrans_header);	if (test->bidirectional)
	iperf_printf(test, "%s", report_bw_retrans_header_bidir);
	else
	iperf_printf(test, "%s", report_bw_retrans_header);
	}
	else {
	if (test->bidirectional)
	iperf_printf(test, "%s", report_bw_header_bidir);
	else
	iperf_printf(test, "%s", report_bw_header);
	}
	} else {
	if (test->bidirectional)
	iperf_printf(test, "%s", report_bw_udp_header_bidir);
else	else
iprintf(test, "%s", report_bw_header);	iperf_printf(test, "%s", report_bw_udp_header);
} else	}
iprintf(test, "%s", report_bw_udp_header);
}	}

start_time = 0.;	/*
sp = SLIST_FIRST(&test->streams);	* We must to sum streams separately.
/*	* For bidirectional mode we must to display
* If there is at least one stream, then figure out the length of time	* information about sender and receiver streams.
* we were running the tests and print out some statistics about	* For client side we must handle sender streams
* the streams. It's possible to not have any streams at all	* firstly and receiver streams for server side.
* if the client got interrupted before it got to do anything.	* The following design allows us to do this.
*/	*/
if (sp) {
end_time = timeval_diff(&sp->result->start_time, &sp->result->end_time);
SLIST_FOREACH(sp, &test->streams, streams) {
if (test->json_output) {
json_summary_stream = cJSON_CreateObject();
if (json_summary_stream == NULL)
return;
cJSON_AddItemToArray(json_summary_streams, json_summary_stream);
}

bytes_sent = sp->result->bytes_sent - sp->result->bytes_sent_omit;	if (test->mode == BIDIRECTIONAL) {
bytes_received = sp->result->bytes_received;	if (test->role == 'c') {
total_sent += bytes_sent;	lower_mode = -1;
total_received += bytes_received;	upper_mode = 0;
	} else {
	lower_mode = 0;
	upper_mode = 1;
	}
	} else {
	lower_mode = test->mode;
	upper_mode = lower_mode;
	}

if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {
if (test->sender_has_retransmits) {	for (current_mode = lower_mode; current_mode <= upper_mode; ++current_mode) {
total_retransmits += sp->result->stream_retrans;	cJSON *json_summary_stream = NULL;
}	int64_t total_retransmits = 0;
} else {	int64_t total_packets = 0, lost_packets = 0;
total_packets += (sp->packet_count - sp->omitted_packet_count);	int64_t sender_packet_count = 0, receiver_packet_count = 0; /* for this stream, this interval */
lost_packets += (sp->cnt_error - sp->omitted_cnt_error);	int64_t sender_omitted_packet_count = 0, receiver_omitted_packet_count = 0; /* for this stream, this interval */
avg_jitter += sp->jitter;	int64_t sender_total_packets = 0, receiver_total_packets = 0; /* running total */
	char ubuf[UNIT_LEN];
	char nbuf[UNIT_LEN];
	struct stat sb;
	char sbuf[UNIT_LEN];
	struct iperf_stream *sp = NULL;
	iperf_size_t bytes_sent, total_sent = 0;
	iperf_size_t bytes_received, total_received = 0;
	double start_time, end_time = 0.0, avg_jitter = 0.0, lost_percent = 0.0;
	double sender_time = 0.0, receiver_time = 0.0;
	struct iperf_time temp_time;
	double bandwidth;

	char mbuf[UNIT_LEN];
	int stream_must_be_sender = current_mode * current_mode;


	/* Print stream role just for bidirectional mode. */

	if (test->mode == BIDIRECTIONAL) {
	sprintf(mbuf, "[%s-%s]", stream_must_be_sender?"TX":"RX", test->role == 'c'?"C":"S");
	} else {
	mbuf[0] = '\0';
}	}

unit_snprintf(ubuf, UNIT_LEN, (double) bytes_sent, 'A');	/* Get sender_has_retransmits for each sender side (client and server) */
bandwidth = (double) bytes_sent / (double) end_time;	if (test->mode == BIDIRECTIONAL && stream_must_be_sender)
unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);	test->sender_has_retransmits = tmp_sender_has_retransmits;
if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {	else if (test->mode == BIDIRECTIONAL && !stream_must_be_sender)
if (test->sender_has_retransmits) {	test->sender_has_retransmits = test->other_side_has_retransmits;
/* Summary, TCP with retransmits. */
if (test->json_output)
cJSON_AddItemToObject(json_summary_stream, "sender", iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f retransmits: %d max_snd_cwnd: %d max_rtt: %d min_rtt: %d mean_rtt: %d", (int64_t) sp->socket, (double) start_time, (double) end_time, (double) end_time, (int64_t) bytes_sent, bandwidth * 8, (int64_t) sp->result->stream_retrans, (int64_t) sp->result->stream_max_snd_cwnd, (int64_t) sp->result->stream_max_rtt, (int64_t) sp->result->stream_min_rtt, (int64_t) ((sp->result->stream_count_rtt == 0) ? 0 : sp->result->stream_sum_rtt / sp->result->stream_count_rtt)));
else
iprintf(test, report_bw_retrans_format, sp->socket, start_time, end_time, ubuf, nbuf, sp->result->stream_retrans, report_sender);
} else {
/* Summary, TCP without retransmits. */
if (test->json_output)
cJSON_AddItemToObject(json_summary_stream, "sender", iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f", (int64_t) sp->socket, (double) start_time, (double) end_time, (double) end_time, (int64_t) bytes_sent, bandwidth * 8));
else
iprintf(test, report_bw_format, sp->socket, start_time, end_time, ubuf, nbuf, report_sender);
}
} else {
/* Summary, UDP. */
if (sp->packet_count - sp->omitted_packet_count > 0) {
lost_percent = 100.0 * (sp->cnt_error - sp->omitted_cnt_error) / (sp->packet_count - sp->omitted_packet_count);
}
else {
lost_percent = 0.0;
}
if (test->json_output)
cJSON_AddItemToObject(json_summary_stream, "udp", iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f out_of_order: %d", (int64_t) sp->socket, (double) start_time, (double) end_time, (double) end_time, (int64_t) bytes_sent, bandwidth * 8, (double) sp->jitter * 1000.0, (int64_t) (sp->cnt_error - sp->omitted_cnt_error), (int64_t) (sp->packet_count - sp->omitted_packet_count), (double) lost_percent, (int64_t) (sp->outoforder_packets - sp->omitted_outoforder_packets)));
else {
iprintf(test, report_bw_udp_format, sp->socket, start_time, end_time, ubuf, nbuf, sp->jitter * 1000.0, (sp->cnt_error - sp->omitted_cnt_error), (sp->packet_count - sp->omitted_packet_count), lost_percent, "");
if (test->role == 'c')
iprintf(test, report_datagrams, sp->socket, (sp->packet_count - sp->omitted_packet_count));
if ((sp->outoforder_packets - sp->omitted_outoforder_packets) > 0)
iprintf(test, report_sum_outoforder, start_time, end_time, (sp->outoforder_packets - sp->omitted_outoforder_packets));
}
}

if (sp->diskfile_fd >= 0) {	start_time = 0.;
if (fstat(sp->diskfile_fd, &sb) == 0) {	sp = SLIST_FIRST(&test->streams);
int percent = (int) ( ( (double) bytes_sent / (double) sb.st_size ) * 100.0 );
unit_snprintf(sbuf, UNIT_LEN, (double) sb.st_size, 'A');
if (test->json_output)
cJSON_AddItemToObject(json_summary_stream, "diskfile", iperf_json_printf("sent: %d size: %d percent: %d filename: %s", (int64_t) bytes_sent, (int64_t) sb.st_size, (int64_t) percent, test->diskfile_name));
else
iprintf(test, report_diskfile, ubuf, sbuf, percent, test->diskfile_name);
}
}

unit_snprintf(ubuf, UNIT_LEN, (double) bytes_received, 'A');	/*
bandwidth = (double) bytes_received / (double) end_time;	* If there is at least one stream, then figure out the length of time
unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);	* we were running the tests and print out some statistics about
if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {	* the streams. It's possible to not have any streams at all
if (test->json_output)	* if the client got interrupted before it got to do anything.
cJSON_AddItemToObject(json_summary_stream, "receiver", iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f", (int64_t) sp->socket, (double) start_time, (double) end_time, (double) end_time, (int64_t) bytes_received, bandwidth * 8));	*
else	* Also note that we try to keep separate values for the sender
iprintf(test, report_bw_format, sp->socket, start_time, end_time, ubuf, nbuf, report_receiver);	* and receiver ending times. Earlier iperf (3.1 and earlier)
}	* servers didn't send that to the clients, so in this case we fall
}	* back to using the client's ending timestamp. The fallback is
}	* basically emulating what iperf 3.1 did.
	*/

if (test->num_streams > 1 \|\| test->json_output) {	if (sp) {
unit_snprintf(ubuf, UNIT_LEN, (double) total_sent, 'A');	iperf_time_diff(&sp->result->start_time, &sp->result->end_time, &temp_time);
/* If no tests were run, arbitrariliy set bandwidth to 0. */	end_time = iperf_time_in_secs(&temp_time);
if (end_time > 0.0) {	if (sp->sender) {
bandwidth = (double) total_sent / (double) end_time;	sp->result->sender_time = end_time;
}	if (sp->result->receiver_time == 0.0) {
else {	sp->result->receiver_time = sp->result->sender_time;
bandwidth = 0.0;	}
}	}
unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);	else {
if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {	sp->result->receiver_time = end_time;
if (test->sender_has_retransmits) {	if (sp->result->sender_time == 0.0) {
/* Summary sum, TCP with retransmits. */	sp->result->sender_time = sp->result->receiver_time;
if (test->json_output)	}
cJSON_AddItemToObject(test->json_end, "sum_sent", iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f retransmits: %d", (double) start_time, (double) end_time, (double) end_time, (int64_t) total_sent, bandwidth * 8, (int64_t) total_retransmits));	}
else	sender_time = sp->result->sender_time;
iprintf(test, report_sum_bw_retrans_format, start_time, end_time, ubuf, nbuf, total_retransmits, report_sender);	receiver_time = sp->result->receiver_time;
} else {	SLIST_FOREACH(sp, &test->streams, streams) {
/* Summary sum, TCP without retransmits. */	if (sp->sender == stream_must_be_sender) {
if (test->json_output)	if (test->json_output) {
cJSON_AddItemToObject(test->json_end, "sum_sent", iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f", (double) start_time, (double) end_time, (double) end_time, (int64_t) total_sent, bandwidth * 8));	json_summary_stream = cJSON_CreateObject();
else	if (json_summary_stream == NULL)
iprintf(test, report_sum_bw_format, start_time, end_time, ubuf, nbuf, report_sender);	return;
}	cJSON_AddItemToArray(json_summary_streams, json_summary_stream);
unit_snprintf(ubuf, UNIT_LEN, (double) total_received, 'A');	}
/* If no tests were run, set received bandwidth to 0 */
if (end_time > 0.0) {	bytes_sent = sp->result->bytes_sent - sp->result->bytes_sent_omit;
bandwidth = (double) total_received / (double) end_time;	bytes_received = sp->result->bytes_received;
}	total_sent += bytes_sent;
else {	total_received += bytes_received;
bandwidth = 0.0;
}	if (sp->sender) {
	sender_packet_count = sp->packet_count;
	sender_omitted_packet_count = sp->omitted_packet_count;
	receiver_packet_count = sp->peer_packet_count;
	receiver_omitted_packet_count = sp->peer_omitted_packet_count;
	}
	else {
	sender_packet_count = sp->peer_packet_count;
	sender_omitted_packet_count = sp->peer_omitted_packet_count;
	receiver_packet_count = sp->packet_count;
	receiver_omitted_packet_count = sp->omitted_packet_count;
	}

	if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {
	if (test->sender_has_retransmits) {
	total_retransmits += sp->result->stream_retrans;
	}
	} else {
	/*
	* Running total of the total number of packets. Use the sender packet count if we
	* have it, otherwise use the receiver packet count.
	*/
	int64_t packet_count = sender_packet_count ? sender_packet_count : receiver_packet_count;
	total_packets += (packet_count - sp->omitted_packet_count);
	sender_total_packets += (sender_packet_count - sender_omitted_packet_count);
	receiver_total_packets += (receiver_packet_count - receiver_omitted_packet_count);
	lost_packets += sp->cnt_error;
	if (sp->omitted_cnt_error > -1)
	lost_packets -= sp->omitted_cnt_error;
	avg_jitter += sp->jitter;
	}

	unit_snprintf(ubuf, UNIT_LEN, (double) bytes_sent, 'A');
	if (sender_time > 0.0) {
	bandwidth = (double) bytes_sent / (double) sender_time;
	}
	else {
	bandwidth = 0.0;
	}
	unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);
	if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {
	if (test->sender_has_retransmits) {
	/* Sender summary, TCP and SCTP with retransmits. */
	if (test->json_output)
	cJSON_AddItemToObject(json_summary_stream, report_sender, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f retransmits: %d max_snd_cwnd: %d max_snd_wnd: %d max_rtt: %d min_rtt: %d mean_rtt: %d sender: %b", (int64_t) sp->socket, (double) start_time, (double) sender_time, (double) sender_time, (int64_t) bytes_sent, bandwidth * 8, (int64_t) sp->result->stream_retrans, (int64_t) sp->result->stream_max_snd_cwnd, (int64_t) sp->result->stream_max_snd_wnd, (int64_t) sp->result->stream_max_rtt, (int64_t) sp->result->stream_min_rtt, (int64_t) ((sp->result->stream_count_rtt == 0) ? 0 : sp->result->stream_sum_rtt / sp->result->stream_count_rtt), stream_must_be_sender));
	else
	if (test->role == 's' && !sp->sender) {
	if (test->verbose)
	iperf_printf(test, report_sender_not_available_format, sp->socket);
	}
	else {
	iperf_printf(test, report_bw_retrans_format, sp->socket, mbuf, start_time, sender_time, ubuf, nbuf, sp->result->stream_retrans, report_sender);
	}
	} else {
	/* Sender summary, TCP and SCTP without retransmits. */
	if (test->json_output)
	cJSON_AddItemToObject(json_summary_stream, report_sender, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f sender: %b", (int64_t) sp->socket, (double) start_time, (double) sender_time, (double) sender_time, (int64_t) bytes_sent, bandwidth * 8, stream_must_be_sender));
	else
	if (test->role == 's' && !sp->sender) {
	if (test->verbose)
	iperf_printf(test, report_sender_not_available_format, sp->socket);
	}
	else {
	iperf_printf(test, report_bw_format, sp->socket, mbuf, start_time, sender_time, ubuf, nbuf, report_sender);
	}
	}
	} else {
	/* Sender summary, UDP. */
	if (sender_packet_count - sender_omitted_packet_count > 0) {
	lost_percent = 100.0 * (sp->cnt_error - sp->omitted_cnt_error) / (sender_packet_count - sender_omitted_packet_count);
	}
	else {
	lost_percent = 0.0;
	}
	if (test->json_output) {
	/*
	* For historical reasons, we only emit one JSON
	* object for the UDP summary, and it contains
	* information for both the sender and receiver
	* side.
	*
	* The JSON format as currently defined only includes one
	* value for the number of packets. We usually want that
	* to be the sender's value (how many packets were sent
	* by the sender). However this value might not be
	* available on the receiver in certain circumstances
	* specifically on the server side for a normal test or
	* the client side for a reverse-mode test. If this
	* is the case, then use the receiver's count of packets
	* instead.
	*/
	int64_t packet_count = sender_packet_count ? sender_packet_count : receiver_packet_count;
	cJSON_AddItemToObject(json_summary_stream, "udp", iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f out_of_order: %d sender: %b", (int64_t) sp->socket, (double) start_time, (double) sender_time, (double) sender_time, (int64_t) bytes_sent, bandwidth * 8, (double) sp->jitter * 1000.0, (int64_t) (sp->cnt_error - sp->omitted_cnt_error), (int64_t) (packet_count - sp->omitted_packet_count), (double) lost_percent, (int64_t) (sp->outoforder_packets - sp->omitted_outoforder_packets), stream_must_be_sender));
	}
	else {
	/*
	* Due to ordering of messages on the control channel,
	* the server cannot report on client-side summary
	* statistics. If we're the server, omit one set of
	* summary statistics to avoid giving meaningless
	* results.
	*/
	if (test->role == 's' && !sp->sender) {
	if (test->verbose)
	iperf_printf(test, report_sender_not_available_format, sp->socket);
	}
	else {
	iperf_printf(test, report_bw_udp_format, sp->socket, mbuf, start_time, sender_time, ubuf, nbuf, 0.0, (int64_t) 0, (sender_packet_count - sender_omitted_packet_count), (double) 0, report_sender);
	}
	if ((sp->outoforder_packets - sp->omitted_outoforder_packets) > 0)
	iperf_printf(test, report_sum_outoforder, mbuf, start_time, sender_time, (sp->outoforder_packets - sp->omitted_outoforder_packets));
	}
	}

	if (sp->diskfile_fd >= 0) {
	if (fstat(sp->diskfile_fd, &sb) == 0) {
	/* In the odd case that it's a zero-sized file, say it was all transferred. */
	int percent_sent = 100, percent_received = 100;
	if (sb.st_size > 0) {
	percent_sent = (int) ( ( (double) bytes_sent / (double) sb.st_size ) * 100.0 );
	percent_received = (int) ( ( (double) bytes_received / (double) sb.st_size ) * 100.0 );
	}
	unit_snprintf(sbuf, UNIT_LEN, (double) sb.st_size, 'A');
	if (test->json_output)
	cJSON_AddItemToObject(json_summary_stream, "diskfile", iperf_json_printf("sent: %d received: %d size: %d percent_sent: %d percent_received: %d filename: %s", (int64_t) bytes_sent, (int64_t) bytes_received, (int64_t) sb.st_size, (int64_t) percent_sent, (int64_t) percent_received, test->diskfile_name));
	else
	if (stream_must_be_sender) {
	iperf_printf(test, report_diskfile, ubuf, sbuf, percent_sent, test->diskfile_name);
	}
	else {
	unit_snprintf(ubuf, UNIT_LEN, (double) bytes_received, 'A');
	iperf_printf(test, report_diskfile, ubuf, sbuf, percent_received, test->diskfile_name);
	}
	}
	}

	unit_snprintf(ubuf, UNIT_LEN, (double) bytes_received, 'A');
	if (receiver_time > 0) {
	bandwidth = (double) bytes_received / (double) receiver_time;
	}
	else {
	bandwidth = 0.0;
	}
	unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);
	if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {
	/* Receiver summary, TCP and SCTP */
	if (test->json_output)
	cJSON_AddItemToObject(json_summary_stream, report_receiver, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f sender: %b", (int64_t) sp->socket, (double) start_time, (double) receiver_time, (double) end_time, (int64_t) bytes_received, bandwidth * 8, stream_must_be_sender));
	else
	if (test->role == 's' && sp->sender) {
	if (test->verbose)
	iperf_printf(test, report_receiver_not_available_format, sp->socket);
	}
	else {
	iperf_printf(test, report_bw_format, sp->socket, mbuf, start_time, receiver_time, ubuf, nbuf, report_receiver);
	}
	}
	else {
	/*
	* Receiver summary, UDP. Note that JSON was emitted with
	* the sender summary, so we only deal with human-readable
	* data here.
	*/
	if (! test->json_output) {
	if (receiver_packet_count - receiver_omitted_packet_count > 0 && sp->omitted_cnt_error > -1) {
	lost_percent = 100.0 * (sp->cnt_error - sp->omitted_cnt_error) / (receiver_packet_count - receiver_omitted_packet_count);
	}
	else {
	lost_percent = 0.0;
	}

	if (test->role == 's' && sp->sender) {
	if (test->verbose)
	iperf_printf(test, report_receiver_not_available_format, sp->socket);
	}
	else {
	if (sp->omitted_cnt_error > -1) {
	iperf_printf(test, report_bw_udp_format, sp->socket, mbuf, start_time, receiver_time, ubuf, nbuf, sp->jitter * 1000.0, (sp->cnt_error - sp->omitted_cnt_error), (receiver_packet_count - receiver_omitted_packet_count), lost_percent, report_receiver);
	} else {
	iperf_printf(test, report_bw_udp_format_no_omitted_error, sp->socket, mbuf, start_time, receiver_time, ubuf, nbuf, sp->jitter * 1000.0, (receiver_packet_count - receiver_omitted_packet_count), report_receiver);
	}
	}
	}
	}
	}
	}
	}

	if (test->num_streams > 1 \|\| test->json_output) {
	/*
	* With BIDIR give a different JSON object name to the one sent/receive sums.
	* The different name is given to the data sent from the server, which is
	* the "reverse" channel. This makes sure that the name reported on the server
	* and client are compatible, and the names are the same as with non-bidir,
	* except for when reverse is used.
	*/
	sum_name = "sum";
	sum_sent_name = "sum_sent";
	sum_received_name = "sum_received";
	if (test->mode == BIDIRECTIONAL) {
	if ((test->role == 'c' && !stream_must_be_sender) \|\|
	(test->role != 'c' && stream_must_be_sender))
	{
	sum_name = "sum_bidir_reverse";
	sum_sent_name = "sum_sent_bidir_reverse";
	sum_received_name = "sum_received_bidir_reverse";
	}

	}

	unit_snprintf(ubuf, UNIT_LEN, (double) total_sent, 'A');
	/* If no tests were run, arbitrarily set bandwidth to 0. */
	if (sender_time > 0.0) {
	bandwidth = (double) total_sent / (double) sender_time;
	}
	else {
	bandwidth = 0.0;
	}
unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);	unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);
if (test->json_output)	if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {
cJSON_AddItemToObject(test->json_end, "sum_received", iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f", (double) start_time, (double) end_time, (double) end_time, (int64_t) total_received, bandwidth * 8));	if (test->sender_has_retransmits) {
else	/* Summary sum, TCP with retransmits. */
iprintf(test, report_sum_bw_format, start_time, end_time, ubuf, nbuf, report_receiver);	if (test->json_output)
} else {	cJSON_AddItemToObject(test->json_end, sum_sent_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f retransmits: %d sender: %b", (double) start_time, (double) sender_time, (double) sender_time, (int64_t) total_sent, bandwidth * 8, (int64_t) total_retransmits, stream_must_be_sender));
/* Summary sum, UDP. */	else
avg_jitter /= test->num_streams;	if (test->role == 's' && !stream_must_be_sender) {
/* If no packets were sent, arbitrarily set loss percentage to 0. */	if (test->verbose)
if (total_packets > 0) {	iperf_printf(test, report_sender_not_available_summary_format, "SUM");
lost_percent = 100.0 * lost_packets / total_packets;	}
}	else {
else {	iperf_printf(test, report_sum_bw_retrans_format, mbuf, start_time, sender_time, ubuf, nbuf, total_retransmits, report_sender);
lost_percent = 0.0;	}
}	} else {
if (test->json_output)	/* Summary sum, TCP without retransmits. */
cJSON_AddItemToObject(test->json_end, "sum", iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f", (double) start_time, (double) end_time, (double) end_time, (int64_t) total_sent, bandwidth * 8, (double) avg_jitter * 1000.0, (int64_t) lost_packets, (int64_t) total_packets, (double) lost_percent));	if (test->json_output)
else	cJSON_AddItemToObject(test->json_end, sum_sent_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f sender: %b", (double) start_time, (double) sender_time, (double) sender_time, (int64_t) total_sent, bandwidth * 8, stream_must_be_sender));
iprintf(test, report_sum_bw_udp_format, start_time, end_time, ubuf, nbuf, avg_jitter * 1000.0, lost_packets, total_packets, lost_percent, "");	else
	if (test->role == 's' && !stream_must_be_sender) {
	if (test->verbose)
	iperf_printf(test, report_sender_not_available_summary_format, "SUM");
	}
	else {
	iperf_printf(test, report_sum_bw_format, mbuf, start_time, sender_time, ubuf, nbuf, report_sender);
	}
	}
	unit_snprintf(ubuf, UNIT_LEN, (double) total_received, 'A');
	/* If no tests were run, set received bandwidth to 0 */
	if (receiver_time > 0.0) {
	bandwidth = (double) total_received / (double) receiver_time;
	}
	else {
	bandwidth = 0.0;
	}
	unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);
	if (test->json_output)
	cJSON_AddItemToObject(test->json_end, sum_received_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f sender: %b", (double) start_time, (double) receiver_time, (double) receiver_time, (int64_t) total_received, bandwidth * 8, stream_must_be_sender));
	else
	if (test->role == 's' && stream_must_be_sender) {
	if (test->verbose)
	iperf_printf(test, report_receiver_not_available_summary_format, "SUM");
	}
	else {
	iperf_printf(test, report_sum_bw_format, mbuf, start_time, receiver_time, ubuf, nbuf, report_receiver);
	}
	} else {
	/* Summary sum, UDP. */
	avg_jitter /= test->num_streams;
	/* If no packets were sent, arbitrarily set loss percentage to 0. */
	if (total_packets > 0) {
	lost_percent = 100.0 * lost_packets / total_packets;
	}
	else {
	lost_percent = 0.0;
	}
	if (test->json_output) {
	/*
	* Original, summary structure. Using this
	* structure is not recommended due to
	* ambiguities between the sender and receiver.
	*/
	cJSON_AddItemToObject(test->json_end, sum_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f sender: %b", (double) start_time, (double) receiver_time, (double) receiver_time, (int64_t) total_sent, bandwidth * 8, (double) avg_jitter * 1000.0, (int64_t) lost_packets, (int64_t) total_packets, (double) lost_percent, stream_must_be_sender));
	/*
	* Separate sum_sent and sum_received structures.
	* Using these structures to get the most complete
	* information about UDP transfer.
	*/
	cJSON_AddItemToObject(test->json_end, sum_sent_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f sender: %b", (double) start_time, (double) sender_time, (double) sender_time, (int64_t) total_sent, (double) total_sent * 8 / sender_time, (double) 0.0, (int64_t) 0, (int64_t) sender_total_packets, (double) 0.0, 1));
	cJSON_AddItemToObject(test->json_end, sum_received_name, iperf_json_printf("start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f sender: %b", (double) start_time, (double) receiver_time, (double) receiver_time, (int64_t) total_received, (double) total_received * 8 / receiver_time, (double) avg_jitter * 1000.0, (int64_t) lost_packets, (int64_t) receiver_total_packets, (double) lost_percent, 0));
	} else {
	/*
	* On the client we have both sender and receiver overall summary
	* stats. On the server we have only the side that was on the
	* server. Output whatever we have.
	*/
	if (! (test->role == 's' && !stream_must_be_sender) ) {
	unit_snprintf(ubuf, UNIT_LEN, (double) total_sent, 'A');
	iperf_printf(test, report_sum_bw_udp_format, mbuf, start_time, sender_time, ubuf, nbuf, 0.0, (int64_t) 0, sender_total_packets, 0.0, report_sender);
	}
	if (! (test->role == 's' && stream_must_be_sender) ) {

	unit_snprintf(ubuf, UNIT_LEN, (double) total_received, 'A');
	/* Compute received bandwidth. */
	if (end_time > 0.0) {
	bandwidth = (double) total_received / (double) receiver_time;
	}
	else {
	bandwidth = 0.0;
	}
	unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);
	iperf_printf(test, report_sum_bw_udp_format, mbuf, start_time, receiver_time, ubuf, nbuf, avg_jitter * 1000.0, lost_packets, receiver_total_packets, lost_percent, report_receiver);
	}
	}
	}
}	}
}

if (test->json_output)	if (test->json_output && current_mode == upper_mode) {
cJSON_AddItemToObject(test->json_end, "cpu_utilization_percent", iperf_json_printf("host_total: %f host_user: %f host_system: %f remote_total: %f remote_user: %f remote_system: %f", (double) test->cpu_util[0], (double) test->cpu_util[1], (double) test->cpu_util[2], (double) test->remote_cpu_util[0], (double) test->remote_cpu_util[1], (double) test->remote_cpu_util[2]));	cJSON_AddItemToObject(test->json_end, "cpu_utilization_percent", iperf_json_printf("host_total: %f host_user: %f host_system: %f remote_total: %f remote_user: %f remote_system: %f", (double) test->cpu_util[0], (double) test->cpu_util[1], (double) test->cpu_util[2], (double) test->remote_cpu_util[0], (double) test->remote_cpu_util[1], (double) test->remote_cpu_util[2]));
else {	if (test->protocol->id == Ptcp) {
if (test->verbose) {	char snd_congestion = NULL, rcv_congestion = NULL;
iprintf(test, report_cpu, report_local, test->sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, test->sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);	if (stream_must_be_sender) {
}	snd_congestion = test->congestion_used;
	rcv_congestion = test->remote_congestion_used;
	}
	else {
	snd_congestion = test->remote_congestion_used;
	rcv_congestion = test->congestion_used;
	}
	if (snd_congestion) {
	cJSON_AddStringToObject(test->json_end, "sender_tcp_congestion", snd_congestion);
	}
	if (rcv_congestion) {
	cJSON_AddStringToObject(test->json_end, "receiver_tcp_congestion", rcv_congestion);
	}
	}
	}
	else {
	if (test->verbose) {
	if (stream_must_be_sender) {
	if (test->bidirectional) {
	iperf_printf(test, report_cpu, report_local, stream_must_be_sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, stream_must_be_sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);
	iperf_printf(test, report_cpu, report_local, !stream_must_be_sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, !stream_must_be_sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);
	} else
	iperf_printf(test, report_cpu, report_local, stream_must_be_sender?report_sender:report_receiver, test->cpu_util[0], test->cpu_util[1], test->cpu_util[2], report_remote, stream_must_be_sender?report_receiver:report_sender, test->remote_cpu_util[0], test->remote_cpu_util[1], test->remote_cpu_util[2]);
	}
	if (test->protocol->id == Ptcp) {
	char snd_congestion = NULL, rcv_congestion = NULL;
	if (stream_must_be_sender) {
	snd_congestion = test->congestion_used;
	rcv_congestion = test->remote_congestion_used;
	}
	else {
	snd_congestion = test->remote_congestion_used;
	rcv_congestion = test->congestion_used;
	}
	if (snd_congestion) {
	iperf_printf(test, "snd_tcp_congestion %s\n", snd_congestion);
	}
	if (rcv_congestion) {
	iperf_printf(test, "rcv_tcp_congestion %s\n", rcv_congestion);
	}
	}
	}

/* Print server output if we're on the client and it was requested/provided */	/* Print server output if we're on the client and it was requested/provided */
if (test->role == 'c' && iperf_get_test_get_server_output(test)) {	if (test->role == 'c' && iperf_get_test_get_server_output(test) && !test->json_output) {
if (test->json_server_output) {	if (test->json_server_output) {
iprintf(test, "\nServer JSON output:\n%s\n", cJSON_Print(test->json_server_output));	char *str = cJSON_Print(test->json_server_output);
cJSON_Delete(test->json_server_output);	iperf_printf(test, "\nServer JSON output:\n%s\n", str);
test->json_server_output = NULL;	cJSON_free(str);
}	cJSON_Delete(test->json_server_output);
if (test->server_output_text) {	test->json_server_output = NULL;
iprintf(test, "\nServer output:\n%s\n", test->server_output_text);	}
test->server_output_text = NULL;	if (test->server_output_text) {
}	iperf_printf(test, "\nServer output:\n%s\n", test->server_output_text);
}	test->server_output_text = NULL;
	}
	}
	}
}	}

	/* Set real sender_has_retransmits for current side */
	if (test->mode == BIDIRECTIONAL)
	test->sender_has_retransmits = tmp_sender_has_retransmits;
}	}

/**************************************************************************/	/**************************************************************************/

/**	/**
* Main report-printing callback.	* Main report-printing callback.
* Prints results either during a test (interval report only) or	* Prints results either during a test (interval report only) or
* after the entire test has been run (last interval report plus	* after the entire test has been run (last interval report plus
* overall summary).	* overall summary).
*/	*/
void	void
Line 2536 iperf_reporter_callback(struct iperf_test *test)	Line 4140 iperf_reporter_callback(struct iperf_test *test)
iperf_print_intermediate(test);	iperf_print_intermediate(test);
iperf_print_results(test);	iperf_print_results(test);
break;	break;
}	}

}	}

Line 2551 print_interval_results(struct iperf_test *test, struct	Line 4155 print_interval_results(struct iperf_test *test, struct
char ubuf[UNIT_LEN];	char ubuf[UNIT_LEN];
char nbuf[UNIT_LEN];	char nbuf[UNIT_LEN];
char cbuf[UNIT_LEN];	char cbuf[UNIT_LEN];
	char mbuf[UNIT_LEN];
	char zbuf[] = " ";
double st = 0., et = 0.;	double st = 0., et = 0.;
	struct iperf_time temp_time;
struct iperf_interval_results *irp = NULL;	struct iperf_interval_results *irp = NULL;
double bandwidth, lost_percent;	double bandwidth, lost_percent;

	if (test->mode == BIDIRECTIONAL) {
	sprintf(mbuf, "[%s-%s]", sp->sender?"TX":"RX", test->role == 'c'?"C":"S");
	} else {
	mbuf[0] = '\0';
	zbuf[0] = '\0';
	}

irp = TAILQ_LAST(&sp->result->interval_results, irlisthead); /* get last entry in linked list */	irp = TAILQ_LAST(&sp->result->interval_results, irlisthead); /* get last entry in linked list */
if (irp == NULL) {	if (irp == NULL) {
iperf_err(test, "print_interval_results error: interval_results is NULL");	iperf_err(test, "print_interval_results error: interval_results is NULL");
Line 2567 print_interval_results(struct iperf_test *test, struct	Line 4181 print_interval_results(struct iperf_test *test, struct
** else if there's more than one stream, print the separator;	** else if there's more than one stream, print the separator;
** else nothing.	** else nothing.
*/	*/
if (timeval_equals(&sp->result->start_time, &irp->interval_start_time)) {	if (iperf_time_compare(&sp->result->start_time, &irp->interval_start_time) == 0) {
if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {	if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {
if (test->sender && test->sender_has_retransmits)	if (test->sender_has_retransmits == 1) {
iprintf(test, "%s", report_bw_retrans_cwnd_header);	if (test->bidirectional)
else	iperf_printf(test, "%s", report_bw_retrans_cwnd_header_bidir);
iprintf(test, "%s", report_bw_header);	else
	iperf_printf(test, "%s", report_bw_retrans_cwnd_header);
	}
	else {
	if (test->bidirectional)
	iperf_printf(test, "%s", report_bw_header_bidir);
	else
	iperf_printf(test, "%s", report_bw_header);
	}
} else {	} else {
if (test->sender)	if (test->mode == SENDER) {
iprintf(test, "%s", report_bw_udp_sender_header);	iperf_printf(test, "%s", report_bw_udp_sender_header);
else	} else if (test->mode == RECEIVER){
iprintf(test, "%s", report_bw_udp_header);	iperf_printf(test, "%s", report_bw_udp_header);
	} else {
	/* BIDIRECTIONAL */
	iperf_printf(test, "%s", report_bw_udp_header_bidir);
	}
}	}
} else if (test->num_streams > 1)	} else if (test->num_streams > 1)
iprintf(test, "%s", report_bw_separator);	iperf_printf(test, "%s", report_bw_separator);
}	}
}	}

unit_snprintf(ubuf, UNIT_LEN, (double) (irp->bytes_transferred), 'A');	unit_snprintf(ubuf, UNIT_LEN, (double) (irp->bytes_transferred), 'A');
bandwidth = (double) irp->bytes_transferred / (double) irp->interval_duration;	if (irp->interval_duration > 0.0) {
	bandwidth = (double) irp->bytes_transferred / (double) irp->interval_duration;
	}
	else {
	bandwidth = 0.0;
	}
unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);	unit_snprintf(nbuf, UNIT_LEN, bandwidth, test->settings->unit_format);

st = timeval_diff(&sp->result->start_time, &irp->interval_start_time);	iperf_time_diff(&sp->result->start_time, &irp->interval_start_time, &temp_time);
et = timeval_diff(&sp->result->start_time, &irp->interval_end_time);	st = iperf_time_in_secs(&temp_time);
	iperf_time_diff(&sp->result->start_time, &irp->interval_end_time, &temp_time);
	et = iperf_time_in_secs(&temp_time);

if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {	if (test->protocol->id == Ptcp \|\| test->protocol->id == Psctp) {
if (test->sender && test->sender_has_retransmits) {	if (test->sender_has_retransmits == 1 && sp->sender) {
/* Interval, TCP with retransmits. */	/* Interval, TCP with retransmits. */
if (test->json_output)	if (test->json_output)
cJSON_AddItemToArray(json_interval_streams, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f retransmits: %d snd_cwnd: %d rtt: %d omitted: %b", (int64_t) sp->socket, (double) st, (double) et, (double) irp->interval_duration, (int64_t) irp->bytes_transferred, bandwidth * 8, (int64_t) irp->interval_retrans, (int64_t) irp->snd_cwnd, (int64_t) irp->rtt, irp->omitted));	cJSON_AddItemToArray(json_interval_streams, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f retransmits: %d snd_cwnd: %d snd_wnd: %d rtt: %d rttvar: %d pmtu: %d omitted: %b sender: %b", (int64_t) sp->socket, (double) st, (double) et, (double) irp->interval_duration, (int64_t) irp->bytes_transferred, bandwidth * 8, (int64_t) irp->interval_retrans, (int64_t) irp->snd_cwnd, (int64_t) irp->snd_wnd, (int64_t) irp->rtt, (int64_t) irp->rttvar, (int64_t) irp->pmtu, irp->omitted, sp->sender));
else {	else {
unit_snprintf(cbuf, UNIT_LEN, irp->snd_cwnd, 'A');	unit_snprintf(cbuf, UNIT_LEN, irp->snd_cwnd, 'A');
iprintf(test, report_bw_retrans_cwnd_format, sp->socket, st, et, ubuf, nbuf, irp->interval_retrans, cbuf, irp->omitted?report_omitted:"");	iperf_printf(test, report_bw_retrans_cwnd_format, sp->socket, mbuf, st, et, ubuf, nbuf, irp->interval_retrans, cbuf, irp->omitted?report_omitted:"");
}	}
} else {	} else {
/* Interval, TCP without retransmits. */	/* Interval, TCP without retransmits. */
if (test->json_output)	if (test->json_output)
cJSON_AddItemToArray(json_interval_streams, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f omitted: %b", (int64_t) sp->socket, (double) st, (double) et, (double) irp->interval_duration, (int64_t) irp->bytes_transferred, bandwidth * 8, irp->omitted));	cJSON_AddItemToArray(json_interval_streams, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f omitted: %b sender: %b", (int64_t) sp->socket, (double) st, (double) et, (double) irp->interval_duration, (int64_t) irp->bytes_transferred, bandwidth * 8, irp->omitted, sp->sender));
else	else
iprintf(test, report_bw_format, sp->socket, st, et, ubuf, nbuf, irp->omitted?report_omitted:"");	iperf_printf(test, report_bw_format, sp->socket, mbuf, st, et, ubuf, nbuf, irp->omitted?report_omitted:"");
}	}
} else {	} else {
/* Interval, UDP. */	/* Interval, UDP. */
if (test->sender) {	if (sp->sender) {
if (test->json_output)	if (test->json_output)
cJSON_AddItemToArray(json_interval_streams, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f packets: %d omitted: %b", (int64_t) sp->socket, (double) st, (double) et, (double) irp->interval_duration, (int64_t) irp->bytes_transferred, bandwidth * 8, (int64_t) irp->interval_packet_count, irp->omitted));	cJSON_AddItemToArray(json_interval_streams, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f packets: %d omitted: %b sender: %b", (int64_t) sp->socket, (double) st, (double) et, (double) irp->interval_duration, (int64_t) irp->bytes_transferred, bandwidth * 8, (int64_t) irp->interval_packet_count, irp->omitted, sp->sender));
else	else
iprintf(test, report_bw_udp_sender_format, sp->socket, st, et, ubuf, nbuf, irp->interval_packet_count, irp->omitted?report_omitted:"");	iperf_printf(test, report_bw_udp_sender_format, sp->socket, mbuf, st, et, ubuf, nbuf, zbuf, irp->interval_packet_count, irp->omitted?report_omitted:"");
} else {	} else {
if (irp->interval_packet_count > 0) {	if (irp->interval_packet_count > 0) {
lost_percent = 100.0 * irp->interval_cnt_error / irp->interval_packet_count;	lost_percent = 100.0 * irp->interval_cnt_error / irp->interval_packet_count;
Line 2622 print_interval_results(struct iperf_test *test, struct	Line 4255 print_interval_results(struct iperf_test *test, struct
lost_percent = 0.0;	lost_percent = 0.0;
}	}
if (test->json_output)	if (test->json_output)
cJSON_AddItemToArray(json_interval_streams, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f omitted: %b", (int64_t) sp->socket, (double) st, (double) et, (double) irp->interval_duration, (int64_t) irp->bytes_transferred, bandwidth * 8, (double) irp->jitter * 1000.0, (int64_t) irp->interval_cnt_error, (int64_t) irp->interval_packet_count, (double) lost_percent, irp->omitted));	cJSON_AddItemToArray(json_interval_streams, iperf_json_printf("socket: %d start: %f end: %f seconds: %f bytes: %d bits_per_second: %f jitter_ms: %f lost_packets: %d packets: %d lost_percent: %f omitted: %b sender: %b", (int64_t) sp->socket, (double) st, (double) et, (double) irp->interval_duration, (int64_t) irp->bytes_transferred, bandwidth * 8, (double) irp->jitter * 1000.0, (int64_t) irp->interval_cnt_error, (int64_t) irp->interval_packet_count, (double) lost_percent, irp->omitted, sp->sender));
else	else
iprintf(test, report_bw_udp_format, sp->socket, st, et, ubuf, nbuf, irp->jitter * 1000.0, irp->interval_cnt_error, irp->interval_packet_count, lost_percent, irp->omitted?report_omitted:"");	iperf_printf(test, report_bw_udp_format, sp->socket, mbuf, st, et, ubuf, nbuf, irp->jitter * 1000.0, irp->interval_cnt_error, irp->interval_packet_count, lost_percent, irp->omitted?report_omitted:"");
}	}
}	}

if (test->logfile)	if (test->logfile \|\| test->forceflush)
iflush(test);	iflush(test);
}	}

Line 2655 iperf_free_stream(struct iperf_stream *sp)	Line 4288 iperf_free_stream(struct iperf_stream *sp)

/**************************************************************************/	/**************************************************************************/
struct iperf_stream *	struct iperf_stream *
iperf_new_stream(struct iperf_test *test, int s)	iperf_new_stream(struct iperf_test *test, int s, int sender)
{	{
int i;
struct iperf_stream *sp;	struct iperf_stream *sp;
	int ret = 0;

char template[1024];	char template[1024];
if (test->tmp_template) {	if (test->tmp_template) {
snprintf(template, sizeof(template) / sizeof(char), "%s", test->tmp_template);	snprintf(template, sizeof(template) / sizeof(char), "%s", test->tmp_template);
} else {	} else {
char buf[] = "/tmp/iperf3.XXXXXX";	//find the system temporary dir *unix, windows, cygwin support
snprintf(template, sizeof(template) / sizeof(char), "%s", buf);	char* tempdir = getenv("TMPDIR");
	if (tempdir == 0){
	tempdir = getenv("TEMP");
	}
	if (tempdir == 0){
	tempdir = getenv("TMP");
	}
	if (tempdir == 0){
	#if defined(__ANDROID__)
	tempdir = "/data/local/tmp";
	#else
	tempdir = "/tmp";
	#endif
	}
	snprintf(template, sizeof(template) / sizeof(char), "%s/iperf3.XXXXXX", tempdir);
}	}

h_errno = 0;

sp = (struct iperf_stream *) malloc(sizeof(struct iperf_stream));	sp = (struct iperf_stream *) malloc(sizeof(struct iperf_stream));
if (!sp) {	if (!sp) {
i_errno = IECREATESTREAM;	i_errno = IECREATESTREAM;
Line 2678 iperf_new_stream(struct iperf_test *test, int s)	Line 4323 iperf_new_stream(struct iperf_test *test, int s)

memset(sp, 0, sizeof(struct iperf_stream));	memset(sp, 0, sizeof(struct iperf_stream));

	sp->sender = sender;
sp->test = test;	sp->test = test;
sp->settings = test->settings;	sp->settings = test->settings;
sp->result = (struct iperf_stream_result *) malloc(sizeof(struct iperf_stream_result));	sp->result = (struct iperf_stream_result *) malloc(sizeof(struct iperf_stream_result));
Line 2689 iperf_new_stream(struct iperf_test *test, int s)	Line 4335 iperf_new_stream(struct iperf_test *test, int s)

memset(sp->result, 0, sizeof(struct iperf_stream_result));	memset(sp->result, 0, sizeof(struct iperf_stream_result));
TAILQ_INIT(&sp->result->interval_results);	TAILQ_INIT(&sp->result->interval_results);

/* Create and randomize the buffer */	/* Create and randomize the buffer */
sp->buffer_fd = mkstemp(template);	sp->buffer_fd = mkstemp(template);
if (sp->buffer_fd == -1) {	if (sp->buffer_fd == -1) {
Line 2717 iperf_new_stream(struct iperf_test *test, int s)	Line 4363 iperf_new_stream(struct iperf_test *test, int s)
free(sp);	free(sp);
return NULL;	return NULL;
}	}
srandom(time(NULL));	sp->pending_size = 0;
for (i = 0; i < test->settings->blksize; ++i)
sp->buffer[i] = random();

/* Set socket */	/* Set socket */
sp->socket = s;	sp->socket = s;
Line 2728 iperf_new_stream(struct iperf_test *test, int s)	Line 4372 iperf_new_stream(struct iperf_test *test, int s)
sp->rcv = test->protocol->recv;	sp->rcv = test->protocol->recv;

if (test->diskfile_name != (char*) 0) {	if (test->diskfile_name != (char*) 0) {
sp->diskfile_fd = open(test->diskfile_name, test->sender ? O_RDONLY : (O_WRONLY\|O_CREAT\|O_TRUNC), S_IRUSR\|S_IWUSR);	sp->diskfile_fd = open(test->diskfile_name, sender ? O_RDONLY : (O_WRONLY\|O_CREAT\|O_TRUNC), S_IRUSR\|S_IWUSR);
if (sp->diskfile_fd == -1) {	if (sp->diskfile_fd == -1) {
i_errno = IEFILE;	i_errno = IEFILE;
munmap(sp->buffer, sp->test->settings->blksize);	munmap(sp->buffer, sp->test->settings->blksize);
Line 2744 iperf_new_stream(struct iperf_test *test, int s)	Line 4388 iperf_new_stream(struct iperf_test *test, int s)
sp->diskfile_fd = -1;	sp->diskfile_fd = -1;

/* Initialize stream */	/* Initialize stream */
if (iperf_init_stream(sp, test) < 0) {	if (test->repeating_payload)
	fill_with_repeating_pattern(sp->buffer, test->settings->blksize);
	else
	ret = readentropy(sp->buffer, test->settings->blksize);

	if ((ret < 0) \|\| (iperf_init_stream(sp, test) < 0)) {
close(sp->buffer_fd);	close(sp->buffer_fd);
munmap(sp->buffer, sp->test->settings->blksize);	munmap(sp->buffer, sp->test->settings->blksize);
free(sp->result);	free(sp->result);
Line 2758 iperf_new_stream(struct iperf_test *test, int s)	Line 4407 iperf_new_stream(struct iperf_test *test, int s)

/**************************************************************************/	/**************************************************************************/
int	int
iperf_init_stream(struct iperf_stream sp, struct iperf_test test)	iperf_common_sockopts(struct iperf_test *test, int s)
{	{
socklen_t len;
int opt;	int opt;

len = sizeof(struct sockaddr_storage);
if (getsockname(sp->socket, (struct sockaddr *) &sp->local_addr, &len) < 0) {
i_errno = IEINITSTREAM;
return -1;
}
len = sizeof(struct sockaddr_storage);
if (getpeername(sp->socket, (struct sockaddr *) &sp->remote_addr, &len) < 0) {
i_errno = IEINITSTREAM;
return -1;
}

/* Set IP TOS */	/* Set IP TOS */
if ((opt = test->settings->tos)) {	if ((opt = test->settings->tos)) {
if (getsockdomain(sp->socket) == AF_INET6) {	if (getsockdomain(s) == AF_INET6) {
#ifdef IPV6_TCLASS	#ifdef IPV6_TCLASS
if (setsockopt(sp->socket, IPPROTO_IPV6, IPV6_TCLASS, &opt, sizeof(opt)) < 0) {	if (setsockopt(s, IPPROTO_IPV6, IPV6_TCLASS, &opt, sizeof(opt)) < 0) {
i_errno = IESETCOS;	i_errno = IESETCOS;
return -1;	return -1;
}	}

	/* if the control connection was established with a mapped v4 address
	then set IP_TOS on v6 stream socket as well */
	if (iperf_get_mapped_v4(test)) {
	if (setsockopt(s, IPPROTO_IP, IP_TOS, &opt, sizeof(opt)) < 0) {
	/* ignore any failure of v4 TOS in IPv6 case */
	}
	}
#else	#else
i_errno = IESETCOS;	i_errno = IESETCOS;
return -1;	return -1;
#endif	#endif
} else {	} else {
if (setsockopt(sp->socket, IPPROTO_IP, IP_TOS, &opt, sizeof(opt)) < 0) {	if (setsockopt(s, IPPROTO_IP, IP_TOS, &opt, sizeof(opt)) < 0) {
i_errno = IESETTOS;	i_errno = IESETTOS;
return -1;	return -1;
}	}
}	}
}	}
	return 0;
	}

	/**************************************************************************/
	int
	iperf_init_stream(struct iperf_stream sp, struct iperf_test test)
	{
	int opt;
	socklen_t len;

	len = sizeof(struct sockaddr_storage);
	if (getsockname(sp->socket, (struct sockaddr *) &sp->local_addr, &len) < 0) {
	i_errno = IEINITSTREAM;
	return -1;
	}
	len = sizeof(struct sockaddr_storage);
	if (getpeername(sp->socket, (struct sockaddr *) &sp->remote_addr, &len) < 0) {
	i_errno = IEINITSTREAM;
	return -1;
	}

	#if defined(HAVE_DONT_FRAGMENT)
	/* Set Don't Fragment (DF). Only applicable to IPv4/UDP tests. */
	if (iperf_get_test_protocol_id(test) == Pudp &&
	getsockdomain(sp->socket) == AF_INET &&
	iperf_get_dont_fragment(test)) {

	/*
	* There are multiple implementations of this feature depending on the OS.
	* We need to handle separately Linux, UNIX, and Windows, as well as
	* the case that DF isn't supported at all (such as on macOS).
	*/
	#if defined(IP_MTU_DISCOVER) /* Linux version of IP_DONTFRAG */
	opt = IP_PMTUDISC_DO;
	if (setsockopt(sp->socket, IPPROTO_IP, IP_MTU_DISCOVER, &opt, sizeof(opt)) < 0) {
	i_errno = IESETDONTFRAGMENT;
	return -1;
	}
	#else
	#if defined(IP_DONTFRAG) /* UNIX does IP_DONTFRAG */
	opt = 1;
	if (setsockopt(sp->socket, IPPROTO_IP, IP_DONTFRAG, &opt, sizeof(opt)) < 0) {
	i_errno = IESETDONTFRAGMENT;
	return -1;
	}
	#else
	#if defined(IP_DONTFRAGMENT) /* Windows does IP_DONTFRAGMENT */
	opt = 1;
	if (setsockopt(sp->socket, IPPROTO_IP, IP_DONTFRAGMENT, &opt, sizeof(opt)) < 0) {
	i_errno = IESETDONTFRAGMENT;
	return -1;
	}
	#else
	i_errno = IESETDONTFRAGMENT;
	return -1;
	#endif /* IP_DONTFRAGMENT */
	#endif /* IP_DONTFRAG */
	#endif /* IP_MTU_DISCOVER */
	}
	#endif /* HAVE_DONT_FRAGMENT */

return 0;	return 0;
}	}

Line 2809 iperf_add_stream(struct iperf_test *test, struct iperf	Line 4514 iperf_add_stream(struct iperf_test *test, struct iperf
sp->id = 1;	sp->id = 1;
} else {	} else {
// for (n = test->streams, i = 2; n->next; n = n->next, ++i);	// for (n = test->streams, i = 2; n->next; n = n->next, ++i);
	// NOTE: this would ideally be set to 1, however this will not
	// be changed since it is not causing a significant problem
	// and changing it would break multi-stream tests between old
	// and new iperf3 versions.
i = 2;	i = 2;
	prev = NULL;
SLIST_FOREACH(n, &test->streams, streams) {	SLIST_FOREACH(n, &test->streams, streams) {
prev = n;	prev = n;
++i;	++i;
}	}
SLIST_INSERT_AFTER(prev, sp, streams);	if (prev) {
sp->id = i;	SLIST_INSERT_AFTER(prev, sp, streams);
	sp->id = i;
	}
}	}
}	}

Line 2831 static int	Line 4543 static int
diskfile_send(struct iperf_stream *sp)	diskfile_send(struct iperf_stream *sp)
{	{
int r;	int r;
	int buffer_left = sp->diskfile_left; // represents total data in buffer to be sent out
	static int rtot;

r = read(sp->diskfile_fd, sp->buffer, sp->test->settings->blksize);	/* if needed, read enough data from the disk to fill up the buffer */
if (r == 0)	if (sp->diskfile_left < sp->test->settings->blksize && !sp->test->done) {
	r = read(sp->diskfile_fd, sp->buffer, sp->test->settings->blksize -
	sp->diskfile_left);
	buffer_left += r;
	rtot += r;
	if (sp->test->debug) {
	printf("read %d bytes from file, %d total\n", r, rtot);
	}

	// If the buffer doesn't contain a full buffer at this point,
	// adjust the size of the data to send.
	if (buffer_left != sp->test->settings->blksize) {
	if (sp->test->debug)
	printf("possible eof\n");
	// setting data size to be sent,
	// which is less than full block/buffer size
	// (to be used by iperf_tcp_send, etc.)
	sp->pending_size = buffer_left;
	}

	// If there's no work left, we're done.
	if (buffer_left == 0) {
	sp->test->done = 1;
	if (sp->test->debug)
	printf("done\n");
	}
	}

	// If there's no data left in the file or in the buffer, we're done.
	// No more data available to be sent.
	// Return without sending data to the network
	if( sp->test->done \|\| buffer_left == 0 ){
	if (sp->test->debug)
	printf("already done\n");
sp->test->done = 1;	sp->test->done = 1;
else	return 0;
r = sp->snd2(sp);	}

	r = sp->snd2(sp);
	if (r < 0) {
	return r;
	}
	/*
	* Compute how much data is in the buffer but didn't get sent.
	* If there are bytes that got left behind, slide them to the
	* front of the buffer so they can hopefully go out on the next
	* pass.
	*/
	sp->diskfile_left = buffer_left - r;
	if (sp->diskfile_left && sp->diskfile_left < sp->test->settings->blksize) {
	memcpy(sp->buffer,
	sp->buffer + (sp->test->settings->blksize - sp->diskfile_left),
	sp->diskfile_left);
	if (sp->test->debug)
	printf("Shifting %d bytes by %d\n", sp->diskfile_left, (sp->test->settings->blksize - sp->diskfile_left));
	}
return r;	return r;
}	}

Line 2847 diskfile_recv(struct iperf_stream *sp)	Line 4613 diskfile_recv(struct iperf_stream *sp)

r = sp->rcv2(sp);	r = sp->rcv2(sp);
if (r > 0) {	if (r > 0) {
(void) write(sp->diskfile_fd, sp->buffer, r);	// NOTE: Currently ignoring the return value of writing to disk
(void) fsync(sp->diskfile_fd);	(void) (write(sp->diskfile_fd, sp->buffer, r) + 1);
}	}
return r;	return r;
}	}
Line 2857 diskfile_recv(struct iperf_stream *sp)	Line 4623 diskfile_recv(struct iperf_stream *sp)
void	void
iperf_catch_sigend(void (*handler)(int))	iperf_catch_sigend(void (*handler)(int))
{	{
	#ifdef SIGINT
signal(SIGINT, handler);	signal(SIGINT, handler);
	#endif
	#ifdef SIGTERM
signal(SIGTERM, handler);	signal(SIGTERM, handler);
	#endif
	#ifdef SIGHUP
signal(SIGHUP, handler);	signal(SIGHUP, handler);
	#endif
}	}

/**	/**
Line 2902 iperf_create_pidfile(struct iperf_test *test)	Line 4674 iperf_create_pidfile(struct iperf_test *test)
if (test->pidfile) {	if (test->pidfile) {
int fd;	int fd;
char buf[8];	char buf[8];

	/* See if the file already exists and we can read it. */
	fd = open(test->pidfile, O_RDONLY, 0);
	if (fd >= 0) {
	if (read(fd, buf, sizeof(buf) - 1) >= 0) {

	/* We read some bytes, see if they correspond to a valid PID */
	pid_t pid;
	pid = atoi(buf);
	if (pid > 0) {

	/* See if the process exists. */
	if (kill(pid, 0) == 0) {
	/*
	* Make sure not to try to delete existing PID file by
	* scribbling over the pathname we'd use to refer to it.
	* Then exit with an error.
	*/
	free(test->pidfile);
	test->pidfile = NULL;
	iperf_errexit(test, "Another instance of iperf3 appears to be running");
	}
	}
	}
	}

	/*
	* File didn't exist, we couldn't read it, or it didn't correspond to
	* a running process. Try to create it.
	*/
fd = open(test->pidfile, O_WRONLY \| O_CREAT \| O_TRUNC, S_IRUSR\|S_IWUSR);	fd = open(test->pidfile, O_WRONLY \| O_CREAT \| O_TRUNC, S_IRUSR\|S_IWUSR);
if (fd < 0) {	if (fd < 0) {
return -1;	return -1;
}	}
snprintf(buf, sizeof(buf), "%d", getpid()); /* no trailing newline */	snprintf(buf, sizeof(buf), "%d", getpid()); /* no trailing newline */
if (write(fd, buf, strlen(buf) + 1) < 0) {	if (write(fd, buf, strlen(buf)) < 0) {
	(void)close(fd);
return -1;	return -1;
}	}
if (close(fd) < 0) {	if (close(fd) < 0) {
Line 2957 iperf_json_start(struct iperf_test *test)	Line 4760 iperf_json_start(struct iperf_test *test)
int	int
iperf_json_finish(struct iperf_test *test)	iperf_json_finish(struct iperf_test *test)
{	{
if (test->title)	if (test->json_top) {
cJSON_AddStringToObject(test->json_top, "title", test->title);	if (test->title) {
/* Include server output */	cJSON_AddStringToObject(test->json_top, "title", test->title);
if (test->json_server_output) {	}
cJSON_AddItemToObject(test->json_top, "server_output_json", test->json_server_output);	if (test->extra_data) {
	cJSON_AddStringToObject(test->json_top, "extra_data", test->extra_data);
	}
	/* Include server output */
	if (test->json_server_output) {
	cJSON_AddItemToObject(test->json_top, "server_output_json", test->json_server_output);
	}
	if (test->server_output_text) {
	cJSON_AddStringToObject(test->json_top, "server_output_text", test->server_output_text);
	}
	// Get ASCII rendering of JSON structure. Then make our
	// own copy of it and return the storage that cJSON allocated
	// on our behalf. We keep our own copy around.
	char *str = cJSON_Print(test->json_top);
	if (str == NULL) {
	return -1;
	}
	test->json_output_string = strdup(str);
	cJSON_free(str);
	if (test->json_output_string == NULL) {
	return -1;
	}
	fprintf(test->outfile, "%s\n", test->json_output_string);
	iflush(test);
	cJSON_Delete(test->json_top);
	test->json_top = NULL;
}	}
if (test->server_output_text) {	test->json_start = test->json_connected = test->json_intervals = test->json_server_output = test->json_end = NULL;
cJSON_AddStringToObject(test->json_top, "server_output_text", test->server_output_text);
}
test->json_output_string = cJSON_Print(test->json_top);
if (test->json_output_string == NULL)
return -1;
fprintf(test->outfile, "%s\n", test->json_output_string);
iflush(test);
cJSON_Delete(test->json_top);
test->json_top = test->json_start = test->json_connected = test->json_intervals = test->json_server_output = test->json_end = NULL;
return 0;	return 0;
}	}


/* CPU affinity stuff - Linux and FreeBSD only. */	/* CPU affinity stuff - Linux, FreeBSD, and Windows only. */

int	int
iperf_setaffinity(struct iperf_test *test, int affinity)	iperf_setaffinity(struct iperf_test *test, int affinity)
Line 3010 iperf_setaffinity(struct iperf_test *test, int affinit	Line 4829 iperf_setaffinity(struct iperf_test *test, int affinit
return -1;	return -1;
}	}
return 0;	return 0;
#else /* neither HAVE_SCHED_SETAFFINITY nor HAVE_CPUSET_SETAFFINITY */	#elif defined(HAVE_SETPROCESSAFFINITYMASK)
	HANDLE process = GetCurrentProcess();
	DWORD_PTR processAffinityMask = 1 << affinity;

	if (SetProcessAffinityMask(process, processAffinityMask) == 0) {
	i_errno = IEAFFINITY;
	return -1;
	}
	return 0;
	#else /* neither HAVE_SCHED_SETAFFINITY nor HAVE_CPUSET_SETAFFINITY nor HAVE_SETPROCESSAFFINITYMASK */
i_errno = IEAFFINITY;	i_errno = IEAFFINITY;
return -1;	return -1;
#endif /* neither HAVE_SCHED_SETAFFINITY nor HAVE_CPUSET_SETAFFINITY */	#endif /* neither HAVE_SCHED_SETAFFINITY nor HAVE_CPUSET_SETAFFINITY nor HAVE_SETPROCESSAFFINITYMASK */
}	}

int	int
Line 3038 iperf_clearaffinity(struct iperf_test *test)	Line 4866 iperf_clearaffinity(struct iperf_test *test)
return -1;	return -1;
}	}
return 0;	return 0;
#else /* neither HAVE_SCHED_SETAFFINITY nor HAVE_CPUSET_SETAFFINITY */	#elif defined(HAVE_SETPROCESSAFFINITYMASK)
	HANDLE process = GetCurrentProcess();
	DWORD_PTR processAffinityMask;
	DWORD_PTR lpSystemAffinityMask;

	if (GetProcessAffinityMask(process, &processAffinityMask, &lpSystemAffinityMask) == 0
	\|\| SetProcessAffinityMask(process, lpSystemAffinityMask) == 0) {
	i_errno = IEAFFINITY;
	return -1;
	}
	return 0;
	#else /* neither HAVE_SCHED_SETAFFINITY nor HAVE_CPUSET_SETAFFINITY nor HAVE_SETPROCESSAFFINITYMASK */
i_errno = IEAFFINITY;	i_errno = IEAFFINITY;
return -1;	return -1;
#endif /* neither HAVE_SCHED_SETAFFINITY nor HAVE_CPUSET_SETAFFINITY */	#endif /* neither HAVE_SCHED_SETAFFINITY nor HAVE_CPUSET_SETAFFINITY nor HAVE_SETPROCESSAFFINITYMASK */
}	}

	static char iperf_timestr[100];
	static char linebuffer[1024];

int	int
iprintf(struct iperf_test test, const char format, ...)	iperf_printf(struct iperf_test test, const char format, ...)
{	{
va_list argp;	va_list argp;
int r = -1;	int r = 0, r0;
	time_t now;
	struct tm *ltm = NULL;
	char *ct = NULL;

	/* Timestamp if requested */
	if (iperf_get_test_timestamps(test)) {
	time(&now);
	ltm = localtime(&now);
	strftime(iperf_timestr, sizeof(iperf_timestr), iperf_get_test_timestamp_format(test), ltm);
	ct = iperf_timestr;
	}

/*	/*
* There are roughly two use cases here. If we're the client,	* There are roughly two use cases here. If we're the client,
* want to print stuff directly to the output stream.	* want to print stuff directly to the output stream.
Line 3063 iprintf(struct iperf_test test, const char format, .	Line 4916 iprintf(struct iperf_test test, const char format, .
* to be buffered up anyway.	* to be buffered up anyway.
*/	*/
if (test->role == 'c') {	if (test->role == 'c') {
if (test->title)	if (ct) {
fprintf(test->outfile, "%s: ", test->title);	r0 = fprintf(test->outfile, "%s", ct);
	if (r0 < 0)
	return r0;
	r += r0;
	}
	if (test->title) {
	r0 = fprintf(test->outfile, "%s: ", test->title);
	if (r0 < 0)
	return r0;
	r += r0;
	}
va_start(argp, format);	va_start(argp, format);
r = vfprintf(test->outfile, format, argp);	r0 = vfprintf(test->outfile, format, argp);
va_end(argp);	va_end(argp);
	if (r0 < 0)
	return r0;
	r += r0;
}	}
else if (test->role == 's') {	else if (test->role == 's') {
char linebuffer[1024];	if (ct) {
va_start(argp, format);	r0 = snprintf(linebuffer, sizeof(linebuffer), "%s", ct);
r = vsnprintf(linebuffer, sizeof(linebuffer), format, argp);	if (r0 < 0)
va_end(argp);	return r0;
	r += r0;
	}
	/* Should always be true as long as sizeof(ct) < sizeof(linebuffer) */
	if (r < sizeof(linebuffer)) {
	va_start(argp, format);
	r0 = vsnprintf(linebuffer + r, sizeof(linebuffer) - r, format, argp);
	va_end(argp);
	if (r0 < 0)
	return r0;
	r += r0;
	}
fprintf(test->outfile, "%s", linebuffer);	fprintf(test->outfile, "%s", linebuffer);

if (test->role == 's' && iperf_get_test_get_server_output(test)) {	if (test->role == 's' && iperf_get_test_get_server_output(test)) {

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Removed from v.1.1
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	Added in v.1.1.1.3