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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/lwiperf/lwiperf.c')
-rw-r--r--thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/lwiperf/lwiperf.c661
1 files changed, 661 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/lwiperf/lwiperf.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/lwiperf/lwiperf.c
new file mode 100644
index 0000000..efabe47
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/lwiperf/lwiperf.c
@@ -0,0 +1,661 @@
+/**
+ * @file
+ * lwIP iPerf server implementation
+ */
+
+/**
+ * @defgroup iperf Iperf server
+ * @ingroup apps
+ *
+ * This is a simple performance measuring server to check your bandwith using
+ * iPerf2 on a PC as client.
+ * It is currently a minimal implementation providing an IPv4 TCP server only.
+ *
+ * @todo: implement UDP mode and IPv6
+ */
+
+/*
+ * Copyright (c) 2014 Simon Goldschmidt
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Simon Goldschmidt
+ */
+
+#include "lwip/apps/lwiperf.h"
+
+#include "lwip/tcp.h"
+#include "lwip/sys.h"
+
+#include <string.h>
+
+/* Currently, only TCP-over-IPv4 is implemented (does iperf support IPv6 anyway?) */
+#if LWIP_IPV4 && LWIP_TCP && LWIP_CALLBACK_API
+
+/** Specify the idle timeout (in seconds) after that the test fails */
+#ifndef LWIPERF_TCP_MAX_IDLE_SEC
+#define LWIPERF_TCP_MAX_IDLE_SEC 10U
+#endif
+#if LWIPERF_TCP_MAX_IDLE_SEC > 255
+#error LWIPERF_TCP_MAX_IDLE_SEC must fit into an u8_t
+#endif
+
+/* File internal memory allocation (struct lwiperf_*): this defaults to
+ the heap */
+#ifndef LWIPERF_ALLOC
+#define LWIPERF_ALLOC(type) mem_malloc(sizeof(type))
+#define LWIPERF_FREE(type, item) mem_free(item)
+#endif
+
+/** If this is 1, check that received data has the correct format */
+#ifndef LWIPERF_CHECK_RX_DATA
+#define LWIPERF_CHECK_RX_DATA 0
+#endif
+
+/** This is the Iperf settings struct sent from the client */
+typedef struct _lwiperf_settings {
+#define LWIPERF_FLAGS_ANSWER_TEST 0x80000000
+#define LWIPERF_FLAGS_ANSWER_NOW 0x00000001
+ u32_t flags;
+ u32_t num_threads; /* unused for now */
+ u32_t remote_port;
+ u32_t buffer_len; /* unused for now */
+ u32_t win_band; /* TCP window / UDP rate: unused for now */
+ u32_t amount; /* pos. value: bytes?; neg. values: time (unit is 10ms: 1/100 second) */
+} lwiperf_settings_t;
+
+/** Basic connection handle */
+struct _lwiperf_state_base;
+typedef struct _lwiperf_state_base lwiperf_state_base_t;
+struct _lwiperf_state_base {
+ /* 1=tcp, 0=udp */
+ u8_t tcp;
+ /* 1=server, 0=client */
+ u8_t server;
+ lwiperf_state_base_t* next;
+ lwiperf_state_base_t* related_server_state;
+};
+
+/** Connection handle for a TCP iperf session */
+typedef struct _lwiperf_state_tcp {
+ lwiperf_state_base_t base;
+ struct tcp_pcb* server_pcb;
+ struct tcp_pcb* conn_pcb;
+ u32_t time_started;
+ lwiperf_report_fn report_fn;
+ void* report_arg;
+ u8_t poll_count;
+ u8_t next_num;
+ u32_t bytes_transferred;
+ lwiperf_settings_t settings;
+ u8_t have_settings_buf;
+} lwiperf_state_tcp_t;
+
+/** List of active iperf sessions */
+static lwiperf_state_base_t* lwiperf_all_connections;
+/** A const buffer to send from: we want to measure sending, not copying! */
+static const u8_t lwiperf_txbuf_const[1600] = {
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+ '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',
+};
+
+static err_t lwiperf_tcp_poll(void *arg, struct tcp_pcb *tpcb);
+static void lwiperf_tcp_err(void *arg, err_t err);
+
+/** Add an iperf session to the 'active' list */
+static void
+lwiperf_list_add(lwiperf_state_base_t* item)
+{
+ if (lwiperf_all_connections == NULL) {
+ lwiperf_all_connections = item;
+ } else {
+ item = lwiperf_all_connections;
+ }
+}
+
+/** Remove an iperf session from the 'active' list */
+static void
+lwiperf_list_remove(lwiperf_state_base_t* item)
+{
+ lwiperf_state_base_t* prev = NULL;
+ lwiperf_state_base_t* iter;
+ for (iter = lwiperf_all_connections; iter != NULL; prev = iter, iter = iter->next) {
+ if (iter == item) {
+ if (prev == NULL) {
+ lwiperf_all_connections = iter->next;
+ } else {
+ prev->next = item;
+ }
+ /* @debug: ensure this item is listed only once */
+ for (iter = iter->next; iter != NULL; iter = iter->next) {
+ LWIP_ASSERT("duplicate entry", iter != item);
+ }
+ break;
+ }
+ }
+}
+
+/** Call the report function of an iperf tcp session */
+static void
+lwip_tcp_conn_report(lwiperf_state_tcp_t* conn, enum lwiperf_report_type report_type)
+{
+ if ((conn != NULL) && (conn->report_fn != NULL)) {
+ u32_t now, duration_ms, bandwidth_kbitpsec;
+ now = sys_now();
+ duration_ms = now - conn->time_started;
+ if (duration_ms == 0) {
+ bandwidth_kbitpsec = 0;
+ } else {
+ bandwidth_kbitpsec = (conn->bytes_transferred / duration_ms) * 8U;
+ }
+ conn->report_fn(conn->report_arg, report_type,
+ &conn->conn_pcb->local_ip, conn->conn_pcb->local_port,
+ &conn->conn_pcb->remote_ip, conn->conn_pcb->remote_port,
+ conn->bytes_transferred, duration_ms, bandwidth_kbitpsec);
+ }
+}
+
+/** Close an iperf tcp session */
+static void
+lwiperf_tcp_close(lwiperf_state_tcp_t* conn, enum lwiperf_report_type report_type)
+{
+ err_t err;
+
+ lwip_tcp_conn_report(conn, report_type);
+ lwiperf_list_remove(&conn->base);
+ if (conn->conn_pcb != NULL) {
+ tcp_arg(conn->conn_pcb, NULL);
+ tcp_poll(conn->conn_pcb, NULL, 0);
+ tcp_sent(conn->conn_pcb, NULL);
+ tcp_recv(conn->conn_pcb, NULL);
+ tcp_err(conn->conn_pcb, NULL);
+ err = tcp_close(conn->conn_pcb);
+ if (err != ERR_OK) {
+ /* don't want to wait for free memory here... */
+ tcp_abort(conn->conn_pcb);
+ }
+ } else {
+ /* no conn pcb, this is the server pcb */
+ err = tcp_close(conn->server_pcb);
+ LWIP_ASSERT("error", err != ERR_OK);
+ }
+ LWIPERF_FREE(lwiperf_state_tcp_t, conn);
+}
+
+/** Try to send more data on an iperf tcp session */
+static err_t
+lwiperf_tcp_client_send_more(lwiperf_state_tcp_t* conn)
+{
+ int send_more;
+ err_t err;
+ u16_t txlen;
+ u16_t txlen_max;
+ void* txptr;
+ u8_t apiflags;
+
+ LWIP_ASSERT("conn invalid", (conn != NULL) && conn->base.tcp && (conn->base.server == 0));
+
+ do {
+ send_more = 0;
+ if (conn->settings.amount & PP_HTONL(0x80000000)) {
+ /* this session is time-limited */
+ u32_t now = sys_now();
+ u32_t diff_ms = now - conn->time_started;
+ u32_t time = (u32_t)-(s32_t)lwip_htonl(conn->settings.amount);
+ u32_t time_ms = time * 10;
+ if (diff_ms >= time_ms) {
+ /* time specified by the client is over -> close the connection */
+ lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_CLIENT);
+ return ERR_OK;
+ }
+ } else {
+ /* this session is byte-limited */
+ u32_t amount_bytes = lwip_htonl(conn->settings.amount);
+ /* @todo: this can send up to 1*MSS more than requested... */
+ if (amount_bytes >= conn->bytes_transferred) {
+ /* all requested bytes transferred -> close the connection */
+ lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_CLIENT);
+ return ERR_OK;
+ }
+ }
+
+ if (conn->bytes_transferred < 24) {
+ /* transmit the settings a first time */
+ txptr = &((u8_t*)&conn->settings)[conn->bytes_transferred];
+ txlen_max = (u16_t)(24 - conn->bytes_transferred);
+ apiflags = TCP_WRITE_FLAG_COPY;
+ } else if (conn->bytes_transferred < 48) {
+ /* transmit the settings a second time */
+ txptr = &((u8_t*)&conn->settings)[conn->bytes_transferred - 24];
+ txlen_max = (u16_t)(48 - conn->bytes_transferred);
+ apiflags = TCP_WRITE_FLAG_COPY | TCP_WRITE_FLAG_MORE;
+ send_more = 1;
+ } else {
+ /* transmit data */
+ /* @todo: every x bytes, transmit the settings again */
+ txptr = LWIP_CONST_CAST(void*, &lwiperf_txbuf_const[conn->bytes_transferred % 10]);
+ txlen_max = TCP_MSS;
+ if (conn->bytes_transferred == 48) { /* @todo: fix this for intermediate settings, too */
+ txlen_max = TCP_MSS - 24;
+ }
+ apiflags = 0; /* no copying needed */
+ send_more = 1;
+ }
+ txlen = txlen_max;
+ do {
+ err = tcp_write(conn->conn_pcb, txptr, txlen, apiflags);
+ if (err == ERR_MEM) {
+ txlen /= 2;
+ }
+ } while ((err == ERR_MEM) && (txlen >= (TCP_MSS/2)));
+
+ if (err == ERR_OK) {
+ conn->bytes_transferred += txlen;
+ } else {
+ send_more = 0;
+ }
+ } while(send_more);
+
+ tcp_output(conn->conn_pcb);
+ return ERR_OK;
+}
+
+/** TCP sent callback, try to send more data */
+static err_t
+lwiperf_tcp_client_sent(void *arg, struct tcp_pcb *tpcb, u16_t len)
+{
+ lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+ /* @todo: check 'len' (e.g. to time ACK of all data)? for now, we just send more... */
+ LWIP_ASSERT("invalid conn", conn->conn_pcb == tpcb);
+ LWIP_UNUSED_ARG(tpcb);
+ LWIP_UNUSED_ARG(len);
+
+ conn->poll_count = 0;
+
+ return lwiperf_tcp_client_send_more(conn);
+}
+
+/** TCP connected callback (active connection), send data now */
+static err_t
+lwiperf_tcp_client_connected(void *arg, struct tcp_pcb *tpcb, err_t err)
+{
+ lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+ LWIP_ASSERT("invalid conn", conn->conn_pcb == tpcb);
+ LWIP_UNUSED_ARG(tpcb);
+ if (err != ERR_OK) {
+ lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
+ return ERR_OK;
+ }
+ conn->poll_count = 0;
+ conn->time_started = sys_now();
+ return lwiperf_tcp_client_send_more(conn);
+}
+
+/** Start TCP connection back to the client (either parallel or after the
+ * receive test has finished.
+ */
+static err_t
+lwiperf_tx_start(lwiperf_state_tcp_t* conn)
+{
+ err_t err;
+ lwiperf_state_tcp_t* client_conn;
+ struct tcp_pcb* newpcb;
+ ip_addr_t remote_addr;
+ u16_t remote_port;
+
+ client_conn = (lwiperf_state_tcp_t*)LWIPERF_ALLOC(lwiperf_state_tcp_t);
+ if (client_conn == NULL) {
+ return ERR_MEM;
+ }
+ newpcb = tcp_new();
+ if (newpcb == NULL) {
+ LWIPERF_FREE(lwiperf_state_tcp_t, client_conn);
+ return ERR_MEM;
+ }
+
+ MEMCPY(client_conn, conn, sizeof(lwiperf_state_tcp_t));
+ client_conn->base.server = 0;
+ client_conn->server_pcb = NULL;
+ client_conn->conn_pcb = newpcb;
+ client_conn->time_started = sys_now(); /* @todo: set this again on 'connected' */
+ client_conn->poll_count = 0;
+ client_conn->next_num = 4; /* initial nr is '4' since the header has 24 byte */
+ client_conn->bytes_transferred = 0;
+ client_conn->settings.flags = 0; /* prevent the remote side starting back as client again */
+
+ tcp_arg(newpcb, client_conn);
+ tcp_sent(newpcb, lwiperf_tcp_client_sent);
+ tcp_poll(newpcb, lwiperf_tcp_poll, 2U);
+ tcp_err(newpcb, lwiperf_tcp_err);
+
+ ip_addr_copy(remote_addr, conn->conn_pcb->remote_ip);
+ remote_port = (u16_t)lwip_htonl(client_conn->settings.remote_port);
+
+ err = tcp_connect(newpcb, &remote_addr, remote_port, lwiperf_tcp_client_connected);
+ if (err != ERR_OK) {
+ lwiperf_tcp_close(client_conn, LWIPERF_TCP_ABORTED_LOCAL);
+ return err;
+ }
+ lwiperf_list_add(&client_conn->base);
+ return ERR_OK;
+}
+
+/** Receive data on an iperf tcp session */
+static err_t
+lwiperf_tcp_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err)
+{
+ u8_t tmp;
+ u16_t tot_len;
+ u32_t packet_idx;
+ struct pbuf* q;
+ lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+
+ LWIP_ASSERT("pcb mismatch", conn->conn_pcb == tpcb);
+ LWIP_UNUSED_ARG(tpcb);
+
+ if (err != ERR_OK) {
+ lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
+ return ERR_OK;
+ }
+ if (p == NULL) {
+ /* connection closed -> test done */
+ if ((conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW)) ==
+ PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST)) {
+ /* client requested transmission after end of test */
+ lwiperf_tx_start(conn);
+ }
+ lwiperf_tcp_close(conn, LWIPERF_TCP_DONE_SERVER);
+ return ERR_OK;
+ }
+ tot_len = p->tot_len;
+
+ conn->poll_count = 0;
+
+ if ((!conn->have_settings_buf) || ((conn->bytes_transferred -24) % (1024*128) == 0)) {
+ /* wait for 24-byte header */
+ if (p->tot_len < sizeof(lwiperf_settings_t)) {
+ lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR);
+ pbuf_free(p);
+ return ERR_VAL;
+ }
+ if (!conn->have_settings_buf) {
+ if (pbuf_copy_partial(p, &conn->settings, sizeof(lwiperf_settings_t), 0) != sizeof(lwiperf_settings_t)) {
+ lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL);
+ pbuf_free(p);
+ return ERR_VAL;
+ }
+ conn->have_settings_buf = 1;
+ if ((conn->settings.flags & PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW)) ==
+ PP_HTONL(LWIPERF_FLAGS_ANSWER_TEST|LWIPERF_FLAGS_ANSWER_NOW)) {
+ /* client requested parallel transmission test */
+ err_t err2 = lwiperf_tx_start(conn);
+ if (err2 != ERR_OK) {
+ lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_TXERROR);
+ pbuf_free(p);
+ return err2;
+ }
+ }
+ } else {
+ if (pbuf_memcmp(p, 0, &conn->settings, sizeof(lwiperf_settings_t)) != 0) {
+ lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR);
+ pbuf_free(p);
+ return ERR_VAL;
+ }
+ }
+ conn->bytes_transferred += sizeof(lwiperf_settings_t);
+ if (conn->bytes_transferred <= 24) {
+ conn->time_started = sys_now();
+ tcp_recved(tpcb, p->tot_len);
+ pbuf_free(p);
+ return ERR_OK;
+ }
+ conn->next_num = 4; /* 24 bytes received... */
+ tmp = pbuf_header(p, -24);
+ LWIP_ASSERT("pbuf_header failed", tmp == 0);
+ }
+
+ packet_idx = 0;
+ for (q = p; q != NULL; q = q->next) {
+#if LWIPERF_CHECK_RX_DATA
+ const u8_t* payload = (const u8_t*)q->payload;
+ u16_t i;
+ for (i = 0; i < q->len; i++) {
+ u8_t val = payload[i];
+ u8_t num = val - '0';
+ if (num == conn->next_num) {
+ conn->next_num++;
+ if (conn->next_num == 10) {
+ conn->next_num = 0;
+ }
+ } else {
+ lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL_DATAERROR);
+ pbuf_free(p);
+ return ERR_VAL;
+ }
+ }
+#endif
+ packet_idx += q->len;
+ }
+ LWIP_ASSERT("count mismatch", packet_idx == p->tot_len);
+ conn->bytes_transferred += packet_idx;
+ tcp_recved(tpcb, tot_len);
+ pbuf_free(p);
+ return ERR_OK;
+}
+
+/** Error callback, iperf tcp session aborted */
+static void
+lwiperf_tcp_err(void *arg, err_t err)
+{
+ lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+ LWIP_UNUSED_ARG(err);
+ lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
+}
+
+/** TCP poll callback, try to send more data */
+static err_t
+lwiperf_tcp_poll(void *arg, struct tcp_pcb *tpcb)
+{
+ lwiperf_state_tcp_t* conn = (lwiperf_state_tcp_t*)arg;
+ LWIP_ASSERT("pcb mismatch", conn->conn_pcb == tpcb);
+ LWIP_UNUSED_ARG(tpcb);
+ if (++conn->poll_count >= LWIPERF_TCP_MAX_IDLE_SEC) {
+ lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_LOCAL);
+ return ERR_OK; /* lwiperf_tcp_close frees conn */
+ }
+
+ if (!conn->base.server) {
+ lwiperf_tcp_client_send_more(conn);
+ }
+
+ return ERR_OK;
+}
+
+/** This is called when a new client connects for an iperf tcp session */
+static err_t
+lwiperf_tcp_accept(void *arg, struct tcp_pcb *newpcb, err_t err)
+{
+ lwiperf_state_tcp_t *s, *conn;
+ if ((err != ERR_OK) || (newpcb == NULL) || (arg == NULL)) {
+ return ERR_VAL;
+ }
+
+ s = (lwiperf_state_tcp_t*)arg;
+ conn = (lwiperf_state_tcp_t*)LWIPERF_ALLOC(lwiperf_state_tcp_t);
+ if (conn == NULL) {
+ return ERR_MEM;
+ }
+ memset(conn, 0, sizeof(lwiperf_state_tcp_t));
+ conn->base.tcp = 1;
+ conn->base.server = 1;
+ conn->base.related_server_state = &s->base;
+ conn->server_pcb = s->server_pcb;
+ conn->conn_pcb = newpcb;
+ conn->time_started = sys_now();
+ conn->report_fn = s->report_fn;
+ conn->report_arg = s->report_arg;
+
+ /* setup the tcp rx connection */
+ tcp_arg(newpcb, conn);
+ tcp_recv(newpcb, lwiperf_tcp_recv);
+ tcp_poll(newpcb, lwiperf_tcp_poll, 2U);
+ tcp_err(conn->conn_pcb, lwiperf_tcp_err);
+
+ lwiperf_list_add(&conn->base);
+ return ERR_OK;
+}
+
+/**
+ * @ingroup iperf
+ * Start a TCP iperf server on the default TCP port (5001) and listen for
+ * incoming connections from iperf clients.
+ *
+ * @returns a connection handle that can be used to abort the server
+ * by calling @ref lwiperf_abort()
+ */
+void*
+lwiperf_start_tcp_server_default(lwiperf_report_fn report_fn, void* report_arg)
+{
+ return lwiperf_start_tcp_server(IP_ADDR_ANY, LWIPERF_TCP_PORT_DEFAULT,
+ report_fn, report_arg);
+}
+
+/**
+ * @ingroup iperf
+ * Start a TCP iperf server on a specific IP address and port and listen for
+ * incoming connections from iperf clients.
+ *
+ * @returns a connection handle that can be used to abort the server
+ * by calling @ref lwiperf_abort()
+ */
+void*
+lwiperf_start_tcp_server(const ip_addr_t* local_addr, u16_t local_port,
+ lwiperf_report_fn report_fn, void* report_arg)
+{
+ err_t err;
+ struct tcp_pcb* pcb;
+ lwiperf_state_tcp_t* s;
+
+ if (local_addr == NULL) {
+ return NULL;
+ }
+
+ s = (lwiperf_state_tcp_t*)LWIPERF_ALLOC(lwiperf_state_tcp_t);
+ if (s == NULL) {
+ return NULL;
+ }
+ memset(s, 0, sizeof(lwiperf_state_tcp_t));
+ s->base.tcp = 1;
+ s->base.server = 1;
+ s->report_fn = report_fn;
+ s->report_arg = report_arg;
+
+ pcb = tcp_new();
+ if (pcb != NULL) {
+ err = tcp_bind(pcb, local_addr, local_port);
+ if (err == ERR_OK) {
+ s->server_pcb = tcp_listen_with_backlog(pcb, 1);
+ }
+ }
+ if (s->server_pcb == NULL) {
+ if (pcb != NULL) {
+ tcp_close(pcb);
+ }
+ LWIPERF_FREE(lwiperf_state_tcp_t, s);
+ return NULL;
+ }
+ pcb = NULL;
+
+ tcp_arg(s->server_pcb, s);
+ tcp_accept(s->server_pcb, lwiperf_tcp_accept);
+
+ lwiperf_list_add(&s->base);
+ return s;
+}
+
+/**
+ * @ingroup iperf
+ * Abort an iperf session (handle returned by lwiperf_start_tcp_server*())
+ */
+void
+lwiperf_abort(void* lwiperf_session)
+{
+ lwiperf_state_base_t* i, *dealloc, *last = NULL;
+
+ for (i = lwiperf_all_connections; i != NULL; ) {
+ if ((i == lwiperf_session) || (i->related_server_state == lwiperf_session)) {
+ dealloc = i;
+ i = i->next;
+ if (last != NULL) {
+ last->next = i;
+ }
+ LWIPERF_FREE(lwiperf_state_tcp_t, dealloc); /* @todo: type? */
+ } else {
+ last = i;
+ i = i->next;
+ }
+ }
+}
+
+#endif /* LWIP_IPV4 && LWIP_TCP && LWIP_CALLBACK_API */
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 11:10:04 +0000