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features/FEATURE_LWIP/lwip-interface/lwip/src/apps/lwiperf/lwip_lwiperf.c@1:2b6e8130a0ac, 2018-02-22 (annotated)

Committer:
calmantara186
Date:
Thu Feb 22 14:05:19 2018 +0000
Revision:
1:2b6e8130a0ac
Parent:
0:f269e3021894 
mbed os

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /**
elessair 0:f269e3021894 2 * @file
elessair 0:f269e3021894 3 * lwIP iPerf server implementation
elessair 0:f269e3021894 4 */
elessair 0:f269e3021894 5
elessair 0:f269e3021894 6 /**
elessair 0:f269e3021894 7 * @defgroup iperf Iperf server
elessair 0:f269e3021894 8 * @ingroup apps
elessair 0:f269e3021894 9 *
elessair 0:f269e3021894 10 * This is a simple performance measuring server to check your bandwith using
elessair 0:f269e3021894 11 * iPerf2 on a PC as client.
elessair 0:f269e3021894 12 * It is currently a minimal implementation providing an IPv4 TCP server only.
elessair 0:f269e3021894 13 *
elessair 0:f269e3021894 14 * @todo: implement UDP mode and IPv6
elessair 0:f269e3021894 15 */
elessair 0:f269e3021894 16
elessair 0:f269e3021894 17 /*
elessair 0:f269e3021894 18 * Copyright (c) 2014 Simon Goldschmidt
elessair 0:f269e3021894 19 * All rights reserved.
elessair 0:f269e3021894 20 *
elessair 0:f269e3021894 21 * Redistribution and use in source and binary forms, with or without modification,
elessair 0:f269e3021894 22 * are permitted provided that the following conditions are met:
elessair 0:f269e3021894 23 *
elessair 0:f269e3021894 24 * 1. Redistributions of source code must retain the above copyright notice,
elessair 0:f269e3021894 25 * this list of conditions and the following disclaimer.
elessair 0:f269e3021894 26 * 2. Redistributions in binary form must reproduce the above copyright notice,
elessair 0:f269e3021894 27 * this list of conditions and the following disclaimer in the documentation
elessair 0:f269e3021894 28 * and/or other materials provided with the distribution.
elessair 0:f269e3021894 29 * 3. The name of the author may not be used to endorse or promote products
elessair 0:f269e3021894 30 * derived from this software without specific prior written permission.
elessair 0:f269e3021894 31 *
elessair 0:f269e3021894 32 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
elessair 0:f269e3021894 33 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
elessair 0:f269e3021894 34 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
elessair 0:f269e3021894 35 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
elessair 0:f269e3021894 36 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
elessair 0:f269e3021894 37 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
elessair 0:f269e3021894 38 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
elessair 0:f269e3021894 39 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
elessair 0:f269e3021894 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
elessair 0:f269e3021894 41 * OF SUCH DAMAGE.
elessair 0:f269e3021894 42 *
elessair 0:f269e3021894 43 * This file is part of the lwIP TCP/IP stack.
elessair 0:f269e3021894 44 *
elessair 0:f269e3021894 45 * Author: Simon Goldschmidt
elessair 0:f269e3021894 46 */
elessair 0:f269e3021894 47
elessair 0:f269e3021894 48 #include "lwip/apps/lwiperf.h"
elessair 0:f269e3021894 49
elessair 0:f269e3021894 50 #include "lwip/tcp.h"
elessair 0:f269e3021894 51 #include "lwip/sys.h"
elessair 0:f269e3021894 52
elessair 0:f269e3021894 53 #include <string.h>
elessair 0:f269e3021894 54
elessair 0:f269e3021894 55 /* Currently, only TCP-over-IPv4 is implemented (does iperf support IPv6 anyway?) */
elessair 0:f269e3021894 56 #if LWIP_IPV4 && LWIP_TCP
elessair 0:f269e3021894 57
elessair 0:f269e3021894 58 /** Specify the idle timeout (in seconds) after that the test fails */
elessair 0:f269e3021894 59 #ifndef LWIPERF_TCP_MAX_IDLE_SEC
elessair 0:f269e3021894 60 #define LWIPERF_TCP_MAX_IDLE_SEC 10U
elessair 0:f269e3021894 61 #endif
elessair 0:f269e3021894 62 #if LWIPERF_TCP_MAX_IDLE_SEC > 255
elessair 0:f269e3021894 63 #error LWIPERF_TCP_MAX_IDLE_SEC must fit into an u8_t
elessair 0:f269e3021894 64 #endif
elessair 0:f269e3021894 65
elessair 0:f269e3021894 66 /* File internal memory allocation (struct lwiperf_*): this defaults to
elessair 0:f269e3021894 67 the heap */
elessair 0:f269e3021894 68 #ifndef LWIPERF_ALLOC
elessair 0:f269e3021894 69 #define LWIPERF_ALLOC(type) mem_malloc(sizeof(type))
elessair 0:f269e3021894 70 #define LWIPERF_FREE(type, item) mem_free(item)
elessair 0:f269e3021894 71 #endif
elessair 0:f269e3021894 72
elessair 0:f269e3021894 73 /** If this is 1, check that received data has the correct format */
elessair 0:f269e3021894 74 #ifndef LWIPERF_CHECK_RX_DATA
elessair 0:f269e3021894 75 #define LWIPERF_CHECK_RX_DATA 0
elessair 0:f269e3021894 76 #endif
elessair 0:f269e3021894 77
elessair 0:f269e3021894 78 /** This is the Iperf settings struct sent from the client */
elessair 0:f269e3021894 79 typedef struct _lwiperf_settings {
elessair 0:f269e3021894 80 #define LWIPERF_FLAGS_ANSWER_TEST 0x80000000
elessair 0:f269e3021894 81 #define LWIPERF_FLAGS_ANSWER_NOW 0x00000001
elessair 0:f269e3021894 82 u32_t flags;
elessair 0:f269e3021894 83 u32_t num_threads; /* unused for now */
elessair 0:f269e3021894 84 u32_t remote_port;
elessair 0:f269e3021894 85 u32_t buffer_len; /* unused for now */
elessair 0:f269e3021894 86 u32_t win_band; /* TCP window / UDP rate: unused for now */
elessair 0:f269e3021894 87 u32_t amount; /* pos. value: bytes?; neg. values: time (unit is 10ms: 1/100 second) */
elessair 0:f269e3021894 88 } lwiperf_settings_t;
elessair 0:f269e3021894 89
elessair 0:f269e3021894 90 /** Basic connection handle */
elessair 0:f269e3021894 91 struct _lwiperf_state_base;
elessair 0:f269e3021894 92 typedef struct _lwiperf_state_base lwiperf_state_base_t;
elessair 0:f269e3021894 93 struct _lwiperf_state_base {
elessair 0:f269e3021894 94 /* 1=tcp, 0=udp */
elessair 0:f269e3021894 95 u8_t tcp;
elessair 0:f269e3021894 96 /* 1=server, 0=client */
elessair 0:f269e3021894 97 u8_t server;
elessair 0:f269e3021894 98 lwiperf_state_base_t* next;
elessair 0:f269e3021894 99 lwiperf_state_base_t* related_server_state;
elessair 0:f269e3021894 100 };
elessair 0:f269e3021894 101
elessair 0:f269e3021894 102 /** Connection handle for a TCP iperf session */
elessair 0:f269e3021894 103 typedef struct _lwiperf_state_tcp {
elessair 0:f269e3021894 104 lwiperf_state_base_t base;
elessair 0:f269e3021894 105 struct tcp_pcb* server_pcb;
elessair 0:f269e3021894 106 struct tcp_pcb* conn_pcb;
elessair 0:f269e3021894 107 u32_t time_started;
elessair 0:f269e3021894 108 lwiperf_report_fn report_fn;
elessair 0:f269e3021894 109 void* report_arg;
elessair 0:f269e3021894 110 u8_t poll_count;
elessair 0:f269e3021894 111 u8_t next_num;
elessair 0:f269e3021894 112 u32_t bytes_transferred;
elessair 0:f269e3021894 113 lwiperf_settings_t settings;
elessair 0:f269e3021894 114 u8_t have_settings_buf;
elessair 0:f269e3021894 115 } lwiperf_state_tcp_t;
elessair 0:f269e3021894 116
elessair 0:f269e3021894 117 /** List of active iperf sessions */
elessair 0:f269e3021894 118 static lwiperf_state_base_t* lwiperf_all_connections;
elessair 0:f269e3021894 119 /** A const buffer to send from: we want to measure sending, not copying! */
elessair 0:f269e3021894 120 static const u8_t lwiperf_txbuf_const[1600] = {
elessair 0:f269e3021894 121 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 122 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
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elessair 0:f269e3021894 127 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 128 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 129 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 130 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 131 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 132 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 133 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 134 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
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elessair 0:f269e3021894 136 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
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elessair 0:f269e3021894 158 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 159 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 160 '0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9','0','1','2','3','4','5','6','7','8','9',
elessair 0:f269e3021894 161 };
elessair 0:f269e3021894 162
elessair 0:f269e3021894 163 static err_t lwiperf_tcp_poll(void *arg, struct tcp_pcb *tpcb);
elessair 0:f269e3021894 164 static void lwiperf_tcp_err(void *arg, err_t err);
elessair 0:f269e3021894 165
elessair 0:f269e3021894 166 /** Add an iperf session to the 'active' list */
elessair 0:f269e3021894 167 static void
elessair 0:f269e3021894 168 lwiperf_list_add(lwiperf_state_base_t* item)
elessair 0:f269e3021894 169 {
elessair 0:f269e3021894 170 if (lwiperf_all_connections == NULL) {
elessair 0:f269e3021894 171 lwiperf_all_connections = item;
elessair 0:f269e3021894 172 } else {
elessair 0:f269e3021894 173 item = lwiperf_all_connections;
elessair 0:f269e3021894 174 }
elessair 0:f269e3021894 175 }
elessair 0:f269e3021894 176
elessair 0:f269e3021894 177 /** Remove an iperf session from the 'active' list */
elessair 0:f269e3021894 178 static void
elessair 0:f269e3021894 179 lwiperf_list_remove(lwiperf_state_base_t* item)
elessair 0:f269e3021894 180 {
elessair 0:f269e3021894 181 lwiperf_state_base_t* prev = NULL;
elessair 0:f269e3021894 182 lwiperf_state_base_t* iter;
elessair 0:f269e3021894 183 for (iter = lwiperf_all_connections; iter != NULL; prev = iter, iter = iter->next) {
elessair 0:f269e3021894 184 if (iter == item) {
elessair 0:f269e3021894 185 if (prev == NULL) {
elessair 0:f269e3021894 186 lwiperf_all_connections = iter->next;
elessair 0:f269e3021894 187 } else {
elessair 0:f269e3021894 188 prev->next = item;
elessair 0:f269e3021894 189 }
elessair 0:f269e3021894 190 /* @debug: ensure this item is listed only once */
elessair 0:f269e3021894 191 for (iter = iter->next; iter != NULL; iter = iter->next) {
elessair 0:f269e3021894 192 LWIP_ASSERT("duplicate entry", iter != item);
elessair 0:f269e3021894 193 }
elessair 0:f269e3021894 194 break;
elessair 0:f269e3021894 195 }
elessair 0:f269e3021894 196 }
elessair 0:f269e3021894 197 }
elessair 0:f269e3021894 198
elessair 0:f269e3021894 199 /** Call the report function of an iperf tcp session */
elessair 0:f269e3021894 200 static void
elessair 0:f269e3021894 201 lwip_tcp_conn_report(lwiperf_state_tcp_t* conn, enum lwiperf_report_type report_type)
elessair 0:f269e3021894 202 {
elessair 0:f269e3021894 203 if ((conn != NULL) && (conn->report_fn != NULL)) {
elessair 0:f269e3021894 204 u32_t now, duration_ms, bandwidth_kbitpsec;
elessair 0:f269e3021894 205 now = sys_now();
elessair 0:f269e3021894 206 duration_ms = now - conn->time_started;
elessair 0:f269e3021894 207 if (duration_ms == 0) {
elessair 0:f269e3021894 208 bandwidth_kbitpsec = 0;
elessair 0:f269e3021894 209 } else {
elessair 0:f269e3021894 210 bandwidth_kbitpsec = (conn->bytes_transferred / duration_ms) * 8U;
elessair 0:f269e3021894 211 }
elessair 0:f269e3021894 212 conn->report_fn(conn->report_arg, report_type,
elessair 0:f269e3021894 213 &conn->conn_pcb->local_ip, conn->conn_pcb->local_port,
elessair 0:f269e3021894 214 &conn->conn_pcb->remote_ip, conn->conn_pcb->remote_port,
elessair 0:f269e3021894 215 conn->bytes_transferred, duration_ms, bandwidth_kbitpsec);
elessair 0:f269e3021894 216 }
elessair 0:f269e3021894 217 }
elessair 0:f269e3021894 218
elessair 0:f269e3021894 219 /** Close an iperf tcp session */
elessair 0:f269e3021894 220 static void
elessair 0:f269e3021894 221 lwiperf_tcp_close(lwiperf_state_tcp_t* conn, enum lwiperf_report_type report_type)
elessair 0:f269e3021894 222 {
elessair 0:f269e3021894 223 err_t err;
elessair 0:f269e3021894 224
elessair 0:f269e3021894 225 lwip_tcp_conn_report(conn, report_type);
elessair 0:f269e3021894 226 lwiperf_list_remove(&conn->base);
elessair 0:f269e3021894 227 if (conn->conn_pcb != NULL) {
elessair 0:f269e3021894 228 tcp_arg(conn->conn_pcb, NULL);
elessair 0:f269e3021894 229 tcp_poll(conn->conn_pcb, NULL, 0);
elessair 0:f269e3021894 230 tcp_sent(conn->conn_pcb, NULL);
elessair 0:f269e3021894 231 tcp_recv(conn->conn_pcb, NULL);
elessair 0:f269e3021894 232 tcp_err(conn->conn_pcb, NULL);
elessair 0:f269e3021894 233 err = tcp_close(conn->conn_pcb);
elessair 0:f269e3021894 234 if (err != ERR_OK) {
elessair 0:f269e3021894 235 /* don't want to wait for free memory here... */
elessair 0:f269e3021894 236 tcp_abort(conn->conn_pcb);
elessair 0:f269e3021894 237 }
elessair 0:f269e3021894 238 } else {
elessair 0:f269e3021894 239 /* no conn pcb, this is the server pcb */
elessair 0:f269e3021894 240 err = tcp_close(conn->server_pcb);
elessair 0:f269e3021894 241 LWIP_ASSERT("error", err != ERR_OK);
elessair 0:f269e3021894 242 }
elessair 0:f269e3021894 243 LWIPERF_FREE(lwiperf_state_tcp_t, conn);
elessair 0:f269e3021894 244 }
elessair 0:f269e3021894 245
elessair 0:f269e3021894 246 /** Try to send more data on an iperf tcp session */
elessair 0:f269e3021894 247 static err_t
elessair 0:f269e3021894 248 lwiperf_tcp_client_send_more(lwiperf_state_tcp_t* conn)
elessair 0:f269e3021894 249 {
elessair 0:f269e3021894 250 int send_more;
elessair 0:f269e3021894 251 err_t err;
elessair 0:f269e3021894 252 u16_t txlen;
elessair 0:f269e3021894 253 u16_t txlen_max;
elessair 0:f269e3021894 254 void* txptr;
elessair 0:f269e3021894 255 u8_t apiflags;
elessair 0:f269e3021894 256
elessair 0:f269e3021894 257 LWIP_ASSERT("conn invalid", (conn != NULL) && conn->base.tcp && (conn->base.server == 0));
elessair 0:f269e3021894 258
elessair 0:f269e3021894 259 do {
elessair 0:f269e3021894 260 send_more = 0;
elessair 0:f269e3021894 261 if (conn->settings.amount & PP_HTONL(0x80000000)) {
elessair 0:f269e3021894 262 /* this session is time-limited */
elessair 0:f269e3021894 263 u32_t now = sys_now();
elessair 0:f269e3021894 264 u32_t diff_ms = now - conn->time_started;
elessair 0:f269e3021894 265 u32_t time = (u32_t)-(s32_t)htonl(conn->settings.amount);
elessair 0:f269e3021894 266 u32_t time_ms = time * 10;
elessair 0:f269e3021894 267 if (diff_ms >= time_ms) {
elessair 0:f269e3021894 268 /* time specified by the client is over -> close the connection */
elessair 0:f269e3021894 269 lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_CLIENT);
elessair 0:f269e3021894 270 return ERR_OK;
elessair 0:f269e3021894 271 }
elessair 0:f269e3021894 272 } else {
elessair 0:f269e3021894 273 /* this session is byte-limited */
elessair 0:f269e3021894 274 u32_t amount_bytes = htonl(conn->settings.amount);
elessair 0:f269e3021894 275 /* @todo: this can send up to 1*MSS more than requested... */
elessair 0:f269e3021894 276 if (amount_bytes >= conn->bytes_transferred) {
elessair 0:f269e3021894 277 /* all requested bytes transferred -> close the connection */
elessair 0:f269e3021894 278 lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_CLIENT);
elessair 0:f269e3021894 279 return ERR_OK;
elessair 0:f269e3021894 280 }
elessair 0:f269e3021894 281 }
elessair 0:f269e3021894 282
elessair 0:f269e3021894 283 if (conn->bytes_transferred < 24) {
elessair 0:f269e3021894 284 /* transmit the settings a first time */
elessair 0:f269e3021894 285 txptr = &((u8_t*)&conn->settings)[conn->bytes_transferred];
elessair 0:f269e3021894 286 txlen_max = (u16_t)(24 - conn->bytes_transferred);
elessair 0:f269e3021894 287 apiflags = TCP_WRITE_FLAG_COPY;
elessair 0:f269e3021894 288 } else if (conn->bytes_transferred < 48) {
elessair 0:f269e3021894 289 /* transmit the settings a second time */
elessair 0:f269e3021894 290 txptr = &((u8_t*)&conn->settings)[conn->bytes_transferred - 24];
elessair 0:f269e3021894 291 txlen_max = (u16_t)(48 - conn->bytes_transferred);
elessair 0:f269e3021894 292 apiflags = TCP_WRITE_FLAG_COPY | TCP_WRITE_FLAG_MORE;
elessair 0:f269e3021894 293 send_more = 1;
elessair 0:f269e3021894 294 } else {
elessair 0:f269e3021894 295 /* transmit data */
elessair 0:f269e3021894 296 /* @todo: every x bytes, transmit the settings again */
elessair 0:f269e3021894 297 txptr = (void*)(size_t)&lwiperf_txbuf_const[conn->bytes_transferred % 10];
elessair 0:f269e3021894 298 txlen_max = TCP_MSS;
elessair 0:f269e3021894 299 if (conn->bytes_transferred == 48) { /* @todo: fix this for intermediate settings, too */
elessair 0:f269e3021894 300 txlen_max = TCP_MSS - 24;
elessair 0:f269e3021894 301 }
elessair 0:f269e3021894 302 apiflags = 0; /* no copying needed */
elessair 0:f269e3021894 303 send_more = 1;
elessair 0:f269e3021894 304 }
elessair 0:f269e3021894 305 txlen = txlen_max;
elessair 0:f269e3021894 306 do {
elessair 0:f269e3021894 307 err = tcp_write(conn->conn_pcb, txptr, txlen, apiflags);
elessair 0:f269e3021894 308 if (err == ERR_MEM) {
elessair 0:f269e3021894 309 txlen /= 2;
elessair 0:f269e3021894 310 }
elessair 0:f269e3021894 311 } while ((err == ERR_MEM) && (txlen >= (TCP_MSS/2)));
elessair 0:f269e3021894 312
elessair 0:f269e3021894 313 if (err == ERR_OK) {
elessair 0:f269e3021894 314 conn->bytes_transferred += txlen;
elessair 0:f269e3021894 315 } else {
elessair 0:f269e3021894 316 send_more = 0;
elessair 0:f269e3021894 317 }
elessair 0:f269e3021894 318 } while(send_more);
elessair 0:f269e3021894 319
elessair 0:f269e3021894 320 tcp_output(conn->conn_pcb);
elessair 0:f269e3021894 321 return ERR_OK;
elessair 0:f269e3021894 322 }
elessair 0:f269e3021894 323
elessair 0:f269e3021894 324 /** TCP sent callback, try to send more data */
elessair 0:f269e3021894 325 static err_t
elessair 0:f269e3021894 326 lwiperf_tcp_client_sent(void *arg, struct tcp_pcb *tpcb, u16_t len)
elessair 0:f269e3021894 327 {
elessair 0:f269e3021894 328 lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
elessair 0:f269e3021894 329 /* @todo: check 'len' (e.g. to time ACK of all data)? for now, we just send more... */
elessair 0:f269e3021894 330 LWIP_ASSERT("invalid conn", conn->conn_pcb == tpcb);
elessair 0:f269e3021894 331 LWIP_UNUSED_ARG(tpcb);
elessair 0:f269e3021894 332 LWIP_UNUSED_ARG(len);
elessair 0:f269e3021894 333
elessair 0:f269e3021894 334 conn->poll_count = 0;
elessair 0:f269e3021894 335
elessair 0:f269e3021894 336 return lwiperf_tcp_client_send_more(conn);
elessair 0:f269e3021894 337 }
elessair 0:f269e3021894 338
elessair 0:f269e3021894 339 /** TCP connected callback (active connection), send data now */
elessair 0:f269e3021894 340 static err_t
elessair 0:f269e3021894 341 lwiperf_tcp_client_connected(void *arg, struct tcp_pcb *tpcb, err_t err)
elessair 0:f269e3021894 342 {
elessair 0:f269e3021894 343 lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
elessair 0:f269e3021894 344 LWIP_ASSERT("invalid conn", conn->conn_pcb == tpcb);
elessair 0:f269e3021894 345 LWIP_UNUSED_ARG(tpcb);
elessair 0:f269e3021894 346 if (err != ERR_OK) {
elessair 0:f269e3021894 347 lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
elessair 0:f269e3021894 348 return ERR_OK;
elessair 0:f269e3021894 349 }
elessair 0:f269e3021894 350 conn->poll_count = 0;
elessair 0:f269e3021894 351 conn->time_started = sys_now();
elessair 0:f269e3021894 352 return lwiperf_tcp_client_send_more(conn);
elessair 0:f269e3021894 353 }
elessair 0:f269e3021894 354
elessair 0:f269e3021894 355 /** Start TCP connection back to the client (either parallel or after the
elessair 0:f269e3021894 356 * receive test has finished.
elessair 0:f269e3021894 357 */
elessair 0:f269e3021894 358 static err_t
elessair 0:f269e3021894 359 lwiperf_tx_start(lwiperf_state_tcp_t* conn)
elessair 0:f269e3021894 360 {
elessair 0:f269e3021894 361 err_t err;
elessair 0:f269e3021894 362 lwiperf_state_tcp_t* client_conn;
elessair 0:f269e3021894 363 struct tcp_pcb* newpcb;
elessair 0:f269e3021894 364 ip_addr_t remote_addr;
elessair 0:f269e3021894 365 u16_t remote_port;
elessair 0:f269e3021894 366
elessair 0:f269e3021894 367 client_conn = (lwiperf_state_tcp_t*)LWIPERF_ALLOC(lwiperf_state_tcp_t);
elessair 0:f269e3021894 368 if (client_conn == NULL) {
elessair 0:f269e3021894 369 return ERR_MEM;
elessair 0:f269e3021894 370 }
elessair 0:f269e3021894 371 newpcb = tcp_new();
elessair 0:f269e3021894 372 if (newpcb == NULL) {
elessair 0:f269e3021894 373 LWIPERF_FREE(lwiperf_state_tcp_t, client_conn);
elessair 0:f269e3021894 374 return ERR_MEM;
elessair 0:f269e3021894 375 }
elessair 0:f269e3021894 376
elessair 0:f269e3021894 377 memcpy(client_conn, conn, sizeof(lwiperf_state_tcp_t));
elessair 0:f269e3021894 378 client_conn->base.server = 0;
elessair 0:f269e3021894 379 client_conn->server_pcb = NULL;
elessair 0:f269e3021894 380 client_conn->conn_pcb = newpcb;
elessair 0:f269e3021894 381 client_conn->time_started = sys_now(); /* @todo: set this again on 'connected' */
elessair 0:f269e3021894 382 client_conn->poll_count = 0;
elessair 0:f269e3021894 383 client_conn->next_num = 4; /* initial nr is '4' since the header has 24 byte */
elessair 0:f269e3021894 384 client_conn->bytes_transferred = 0;
elessair 0:f269e3021894 385 client_conn->settings.flags = 0; /* prevent the remote side starting back as client again */
elessair 0:f269e3021894 386
elessair 0:f269e3021894 387 tcp_arg(newpcb, client_conn);
elessair 0:f269e3021894 388 tcp_sent(newpcb, lwiperf_tcp_client_sent);
elessair 0:f269e3021894 389 tcp_poll(newpcb, lwiperf_tcp_poll, 2U);
elessair 0:f269e3021894 390 tcp_err(newpcb, lwiperf_tcp_err);
elessair 0:f269e3021894 391
elessair 0:f269e3021894 392 ip_addr_copy(remote_addr, conn->conn_pcb->remote_ip);
elessair 0:f269e3021894 393 remote_port = (u16_t)htonl(client_conn->settings.remote_port);
elessair 0:f269e3021894 394
elessair 0:f269e3021894 395 err = tcp_connect(newpcb, &remote_addr, remote_port, lwiperf_tcp_client_connected);
elessair 0:f269e3021894 396 if (err != ERR_OK) {
elessair 0:f269e3021894 397 lwiperf_tcp_close(client_conn, LWIPERF_TCP_ABORTED_LOCAL);
elessair 0:f269e3021894 398 return err;
elessair 0:f269e3021894 399 }
elessair 0:f269e3021894 400 lwiperf_list_add(&client_conn->base);
elessair 0:f269e3021894 401 return ERR_OK;
elessair 0:f269e3021894 402 }
elessair 0:f269e3021894 403
elessair 0:f269e3021894 404 /** Receive data on an iperf tcp session */
elessair 0:f269e3021894 405 static err_t
elessair 0:f269e3021894 406 lwiperf_tcp_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err)
elessair 0:f269e3021894 407 {
elessair 0:f269e3021894 408 u16_t tot_len;
elessair 0:f269e3021894 409 u32_t packet_idx;
elessair 0:f269e3021894 410 struct pbuf* q;
elessair 0:f269e3021894 411 lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
elessair 0:f269e3021894 412
elessair 0:f269e3021894 413 LWIP_ASSERT("pcb mismatch", conn->conn_pcb == tpcb);
elessair 0:f269e3021894 414 LWIP_UNUSED_ARG(tpcb);
elessair 0:f269e3021894 415
elessair 0:f269e3021894 416 if (err != ERR_OK) {
elessair 0:f269e3021894 417 lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
elessair 0:f269e3021894 418 return ERR_OK;
elessair 0:f269e3021894 419 }
elessair 0:f269e3021894 420 if (p == NULL) {
elessair 0:f269e3021894 421 /* connection closed -> test done */
elessair 0:f269e3021894 422 if ((conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW)) ==
elessair 0:f269e3021894 423 PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST)) {
elessair 0:f269e3021894 424 /* client requested transmission after end of test */
elessair 0:f269e3021894 425 lwiperf_tx_start(conn);
elessair 0:f269e3021894 426 }
elessair 0:f269e3021894 427 lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_SERVER);
elessair 0:f269e3021894 428 return ERR_OK;
elessair 0:f269e3021894 429 }
elessair 0:f269e3021894 430 tot_len = p->tot_len;
elessair 0:f269e3021894 431
elessair 0:f269e3021894 432 conn->poll_count = 0;
elessair 0:f269e3021894 433
elessair 0:f269e3021894 434 if ((!conn->have_settings_buf) || ((conn->bytes_transferred -24) % (1024*128) == 0)) {
elessair 0:f269e3021894 435 /* wait for 24-byte header */
elessair 0:f269e3021894 436 if (p->tot_len < sizeof(lwiperf_settings_t)) {
elessair 0:f269e3021894 437 lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR);
elessair 0:f269e3021894 438 pbuf_free(p);
elessair 0:f269e3021894 439 return ERR_VAL;
elessair 0:f269e3021894 440 }
elessair 0:f269e3021894 441 if (!conn->have_settings_buf) {
elessair 0:f269e3021894 442 if (pbuf_copy_partial(p, &conn->settings, sizeof(lwiperf_settings_t), 0) != sizeof(lwiperf_settings_t)) {
elessair 0:f269e3021894 443 lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL);
elessair 0:f269e3021894 444 pbuf_free(p);
elessair 0:f269e3021894 445 return ERR_VAL;
elessair 0:f269e3021894 446 }
elessair 0:f269e3021894 447 conn->have_settings_buf = 1;
elessair 0:f269e3021894 448 if ((conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW)) ==
elessair 0:f269e3021894 449 PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW)) {
elessair 0:f269e3021894 450 /* client requested parallel transmission test */
elessair 0:f269e3021894 451 err_t err2 = lwiperf_tx_start(conn);
elessair 0:f269e3021894 452 if (err2 != ERR_OK) {
elessair 0:f269e3021894 453 lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_TXERROR);
elessair 0:f269e3021894 454 pbuf_free(p);
elessair 0:f269e3021894 455 return err2;
elessair 0:f269e3021894 456 }
elessair 0:f269e3021894 457 }
elessair 0:f269e3021894 458 } else {
elessair 0:f269e3021894 459 if (pbuf_memcmp(p, 0, &conn->settings, sizeof(lwiperf_settings_t)) != 0) {
elessair 0:f269e3021894 460 lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR);
elessair 0:f269e3021894 461 pbuf_free(p);
elessair 0:f269e3021894 462 return ERR_VAL;
elessair 0:f269e3021894 463 }
elessair 0:f269e3021894 464 }
elessair 0:f269e3021894 465 conn->bytes_transferred += sizeof(lwiperf_settings_t);
elessair 0:f269e3021894 466 if (conn->bytes_transferred <= 24) {
elessair 0:f269e3021894 467 conn->time_started = sys_now();
elessair 0:f269e3021894 468 tcp_recved(tpcb, p->tot_len);
elessair 0:f269e3021894 469 pbuf_free(p);
elessair 0:f269e3021894 470 return ERR_OK;
elessair 0:f269e3021894 471 }
elessair 0:f269e3021894 472 conn->next_num = 4; /* 24 bytes received... */
elessair 0:f269e3021894 473 err = pbuf_header(p, -24);
elessair 0:f269e3021894 474 LWIP_ASSERT("pbuf_header failed", err == ERR_OK);
elessair 0:f269e3021894 475 }
elessair 0:f269e3021894 476
elessair 0:f269e3021894 477 packet_idx = 0;
elessair 0:f269e3021894 478 for (q = p; q != NULL; q = q->next) {
elessair 0:f269e3021894 479 #if LWIPERF_CHECK_RX_DATA
elessair 0:f269e3021894 480 const u8_t* payload = (const u8_t*)q->payload;
elessair 0:f269e3021894 481 u16_t i;
elessair 0:f269e3021894 482 for (i = 0; i < q->len; i++) {
elessair 0:f269e3021894 483 u8_t val = payload[i];
elessair 0:f269e3021894 484 u8_t num = val - '0';
elessair 0:f269e3021894 485 if (num == conn->next_num) {
elessair 0:f269e3021894 486 conn->next_num++;
elessair 0:f269e3021894 487 if (conn->next_num == 10) {
elessair 0:f269e3021894 488 conn->next_num = 0;
elessair 0:f269e3021894 489 }
elessair 0:f269e3021894 490 } else {
elessair 0:f269e3021894 491 lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR);
elessair 0:f269e3021894 492 pbuf_free(p);
elessair 0:f269e3021894 493 return ERR_VAL;
elessair 0:f269e3021894 494 }
elessair 0:f269e3021894 495 }
elessair 0:f269e3021894 496 packet_idx += i;
elessair 0:f269e3021894 497 #else
elessair 0:f269e3021894 498 packet_idx += q->len;
elessair 0:f269e3021894 499 #endif
elessair 0:f269e3021894 500 }
elessair 0:f269e3021894 501 LWIP_ASSERT("count mismatch", packet_idx == p->tot_len);
elessair 0:f269e3021894 502 conn->bytes_transferred += packet_idx;
elessair 0:f269e3021894 503 tcp_recved(tpcb, tot_len);
elessair 0:f269e3021894 504 pbuf_free(p);
elessair 0:f269e3021894 505 return ERR_OK;
elessair 0:f269e3021894 506 }
elessair 0:f269e3021894 507
elessair 0:f269e3021894 508 /** Error callback, iperf tcp session aborted */
elessair 0:f269e3021894 509 static void
elessair 0:f269e3021894 510 lwiperf_tcp_err(void *arg, err_t err)
elessair 0:f269e3021894 511 {
elessair 0:f269e3021894 512 lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
elessair 0:f269e3021894 513 LWIP_UNUSED_ARG(err);
elessair 0:f269e3021894 514 lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
elessair 0:f269e3021894 515 }
elessair 0:f269e3021894 516
elessair 0:f269e3021894 517 /** TCP poll callback, try to send more data */
elessair 0:f269e3021894 518 static err_t
elessair 0:f269e3021894 519 lwiperf_tcp_poll(void *arg, struct tcp_pcb *tpcb)
elessair 0:f269e3021894 520 {
elessair 0:f269e3021894 521 lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
elessair 0:f269e3021894 522 LWIP_ASSERT("pcb mismatch", conn->conn_pcb == tpcb);
elessair 0:f269e3021894 523 LWIP_UNUSED_ARG(tpcb);
elessair 0:f269e3021894 524 if (++conn->poll_count >= LWIPERF_TCP_MAX_IDLE_SEC) {
elessair 0:f269e3021894 525 lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL);
elessair 0:f269e3021894 526 return ERR_OK; /* lwiperf_tcp_close frees conn */
elessair 0:f269e3021894 527 }
elessair 0:f269e3021894 528
elessair 0:f269e3021894 529 if (!conn->base.server) {
elessair 0:f269e3021894 530 lwiperf_tcp_client_send_more(conn);
elessair 0:f269e3021894 531 }
elessair 0:f269e3021894 532
elessair 0:f269e3021894 533 return ERR_OK;
elessair 0:f269e3021894 534 }
elessair 0:f269e3021894 535
elessair 0:f269e3021894 536 /** This is called when a new client connects for an iperf tcp session */
elessair 0:f269e3021894 537 static err_t
elessair 0:f269e3021894 538 lwiperf_tcp_accept(void *arg, struct tcp_pcb *newpcb, err_t err)
elessair 0:f269e3021894 539 {
elessair 0:f269e3021894 540 lwiperf_state_tcp_t *s, *conn;
elessair 0:f269e3021894 541 if ((err != ERR_OK) || (newpcb == NULL) || (arg == NULL)) {
elessair 0:f269e3021894 542 return ERR_VAL;
elessair 0:f269e3021894 543 }
elessair 0:f269e3021894 544
elessair 0:f269e3021894 545 s = (lwiperf_state_tcp_t*)arg;
elessair 0:f269e3021894 546 conn = (lwiperf_state_tcp_t*)LWIPERF_ALLOC(lwiperf_state_tcp_t);
elessair 0:f269e3021894 547 if (conn == NULL) {
elessair 0:f269e3021894 548 return ERR_MEM;
elessair 0:f269e3021894 549 }
elessair 0:f269e3021894 550 memset(conn, 0, sizeof(lwiperf_state_tcp_t));
elessair 0:f269e3021894 551 conn->base.tcp = 1;
elessair 0:f269e3021894 552 conn->base.server = 1;
elessair 0:f269e3021894 553 conn->base.related_server_state = &s->base;
elessair 0:f269e3021894 554 conn->server_pcb = s->server_pcb;
elessair 0:f269e3021894 555 conn->conn_pcb = newpcb;
elessair 0:f269e3021894 556 conn->time_started = sys_now();
elessair 0:f269e3021894 557 conn->report_fn = s->report_fn;
elessair 0:f269e3021894 558 conn->report_arg = s->report_arg;
elessair 0:f269e3021894 559
elessair 0:f269e3021894 560 /* setup the tcp rx connection */
elessair 0:f269e3021894 561 tcp_arg(newpcb, conn);
elessair 0:f269e3021894 562 tcp_recv(newpcb, lwiperf_tcp_recv);
elessair 0:f269e3021894 563 tcp_poll(newpcb, lwiperf_tcp_poll, 2U);
elessair 0:f269e3021894 564 tcp_err(conn->conn_pcb, lwiperf_tcp_err);
elessair 0:f269e3021894 565
elessair 0:f269e3021894 566 lwiperf_list_add(&conn->base);
elessair 0:f269e3021894 567 return ERR_OK;
elessair 0:f269e3021894 568 }
elessair 0:f269e3021894 569
elessair 0:f269e3021894 570 /**
elessair 0:f269e3021894 571 * @ingroup iperf
elessair 0:f269e3021894 572 * Start a TCP iperf server on the default TCP port (5001) and listen for
elessair 0:f269e3021894 573 * incoming connections from iperf clients.
elessair 0:f269e3021894 574 *
elessair 0:f269e3021894 575 * @returns a connection handle that can be used to abort the server
elessair 0:f269e3021894 576 * by calling @ref lwiperf_abort()
elessair 0:f269e3021894 577 */
elessair 0:f269e3021894 578 void*
elessair 0:f269e3021894 579 lwiperf_start_tcp_server_default(lwiperf_report_fn report_fn, void* report_arg)
elessair 0:f269e3021894 580 {
elessair 0:f269e3021894 581 return lwiperf_start_tcp_server(IP_ADDR_ANY, LWIPERF_TCP_PORT_DEFAULT,
elessair 0:f269e3021894 582 report_fn, report_arg);
elessair 0:f269e3021894 583 }
elessair 0:f269e3021894 584
elessair 0:f269e3021894 585 /**
elessair 0:f269e3021894 586 * @ingroup iperf
elessair 0:f269e3021894 587 * Start a TCP iperf server on a specific IP address and port and listen for
elessair 0:f269e3021894 588 * incoming connections from iperf clients.
elessair 0:f269e3021894 589 *
elessair 0:f269e3021894 590 * @returns a connection handle that can be used to abort the server
elessair 0:f269e3021894 591 * by calling @ref lwiperf_abort()
elessair 0:f269e3021894 592 */
elessair 0:f269e3021894 593 void*
elessair 0:f269e3021894 594 lwiperf_start_tcp_server(const ip_addr_t* local_addr, u16_t local_port,
elessair 0:f269e3021894 595 lwiperf_report_fn report_fn, void* report_arg)
elessair 0:f269e3021894 596 {
elessair 0:f269e3021894 597 err_t err;
elessair 0:f269e3021894 598 struct tcp_pcb* pcb;
elessair 0:f269e3021894 599 lwiperf_state_tcp_t* s;
elessair 0:f269e3021894 600
elessair 0:f269e3021894 601 if (local_addr == NULL) {
elessair 0:f269e3021894 602 return NULL;
elessair 0:f269e3021894 603 }
elessair 0:f269e3021894 604
elessair 0:f269e3021894 605 s = (lwiperf_state_tcp_t*)LWIPERF_ALLOC(lwiperf_state_tcp_t);
elessair 0:f269e3021894 606 if (s == NULL) {
elessair 0:f269e3021894 607 return NULL;
elessair 0:f269e3021894 608 }
elessair 0:f269e3021894 609 memset(s, 0, sizeof(lwiperf_state_tcp_t));
elessair 0:f269e3021894 610 s->base.tcp = 1;
elessair 0:f269e3021894 611 s->base.server = 1;
elessair 0:f269e3021894 612 s->report_fn = report_fn;
elessair 0:f269e3021894 613 s->report_arg = report_arg;
elessair 0:f269e3021894 614
elessair 0:f269e3021894 615 pcb = tcp_new();
elessair 0:f269e3021894 616 if (pcb != NULL) {
elessair 0:f269e3021894 617 err = tcp_bind(pcb, local_addr, local_port);
elessair 0:f269e3021894 618 if (err == ERR_OK) {
elessair 0:f269e3021894 619 s->server_pcb = tcp_listen_with_backlog(pcb, 1);
elessair 0:f269e3021894 620 }
elessair 0:f269e3021894 621 }
elessair 0:f269e3021894 622 if (s->server_pcb == NULL) {
elessair 0:f269e3021894 623 if (pcb != NULL) {
elessair 0:f269e3021894 624 tcp_close(pcb);
elessair 0:f269e3021894 625 }
elessair 0:f269e3021894 626 LWIPERF_FREE(lwiperf_state_tcp_t, s);
elessair 0:f269e3021894 627 return NULL;
elessair 0:f269e3021894 628 }
elessair 0:f269e3021894 629 pcb = NULL;
elessair 0:f269e3021894 630
elessair 0:f269e3021894 631 tcp_arg(s->server_pcb, s);
elessair 0:f269e3021894 632 tcp_accept(s->server_pcb, lwiperf_tcp_accept);
elessair 0:f269e3021894 633
elessair 0:f269e3021894 634 lwiperf_list_add(&s->base);
elessair 0:f269e3021894 635 return s;
elessair 0:f269e3021894 636 }
elessair 0:f269e3021894 637
elessair 0:f269e3021894 638 /**
elessair 0:f269e3021894 639 * @ingroup iperf
elessair 0:f269e3021894 640 * Abort an iperf session (handle returned by lwiperf_start_tcp_server*())
elessair 0:f269e3021894 641 */
elessair 0:f269e3021894 642 void
elessair 0:f269e3021894 643 lwiperf_abort(void* lwiperf_session)
elessair 0:f269e3021894 644 {
elessair 0:f269e3021894 645 lwiperf_state_base_t* i, *dealloc, *last = NULL;
elessair 0:f269e3021894 646
elessair 0:f269e3021894 647 for (i = lwiperf_all_connections; i != NULL; ) {
elessair 0:f269e3021894 648 if ((i == lwiperf_session) || (i->related_server_state == lwiperf_session)) {
elessair 0:f269e3021894 649 dealloc = i;
elessair 0:f269e3021894 650 i = i->next;
elessair 0:f269e3021894 651 if (last != NULL) {
elessair 0:f269e3021894 652 last->next = i;
elessair 0:f269e3021894 653 }
elessair 0:f269e3021894 654 LWIPERF_FREE(lwiperf_state_tcp_t, dealloc); /* @todo: type? */
elessair 0:f269e3021894 655 } else {
elessair 0:f269e3021894 656 last = i;
elessair 0:f269e3021894 657 i = i->next;
elessair 0:f269e3021894 658 }
elessair 0:f269e3021894 659 }
elessair 0:f269e3021894 660 }
elessair 0:f269e3021894 661
elessair 0:f269e3021894 662 #endif /* LWIP_IPV4 && LWIP_TCP */