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264 lines
7.1 KiB
264 lines
7.1 KiB
/******************************************************************************
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版权所有 (C), 2018-2099, Radkil
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******************************************************************************
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文 件 名 : My_Lwip.c
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版 本 号 : 初稿
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作 者 : Radkil
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生成日期 : 2026年5月21日
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最近修改 :
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功能描述 : LWIP中间层
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修改历史 :
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1.日 期 : 2026年5月21日
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作 者 : Radkil
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修改内容 : 创建文件
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******************************************************************************/
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#include "bsp_config.h"
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#ifdef USE_LWIP
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#include "lwip/sockets.h"
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#include "lwip/netdb.h"
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#include "FreeRTOS.h"
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#include "task.h"
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#include <stdio.h>
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#include <string.h>
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#include "common.h"
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#include "ringbuffer.h"
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#include "semphr.h"
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#include "lua_base.h"
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#include <stdarg.h>
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/*----------------------------------------------*
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* 外部变量说明 *
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*----------------------------------------------*/
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/*----------------------------------------------*
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* 外部函数原型说明 *
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*----------------------------------------------*/
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/*----------------------------------------------*
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* 内部函数原型说明 *
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*----------------------------------------------*/
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/*----------------------------------------------*
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* 全局变量 *
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*----------------------------------------------*/
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/*----------------------------------------------*
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* 模块级变量 *
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*----------------------------------------------*/
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/*----------------------------------------------*
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* 常量定义 *
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*----------------------------------------------*/
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/*----------------------------------------------*
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* 宏定义 *
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*----------------------------------------------*/
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#define PORT 23 // 监听的端口号
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#define RECV_SIZE 256 // 接收缓冲区大小
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static int connect_fd = -1; //socket套接字
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#if 0
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static rd_ringbuf_t *g_rb_handle = NULL;
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SemaphoreHandle_t xSemaphore;
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StaticSemaphore_t xSemaphoreBuffer;
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SemaphoreHandle_t xMutex;
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StaticSemaphore_t xMutexBuffer;
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void Myprint_Init(void)
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{
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g_rb_handle = rd_RingbufferCreate(RECV_SIZE);
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rd_RingbufferReset(g_rb_handle);
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xSemaphore = xSemaphoreCreateCountingStatic(5, 0, &xSemaphoreBuffer);
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xMutex = xSemaphoreCreateMutexStatic(&xMutexBuffer);
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return;
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}
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void Myprint_timer(void)
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{
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return;
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}
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void Myprint_IRQHandler(void)
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{
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return;
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}
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int Myprint_putchar(uint8_t ch)
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{
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if (connect_fd < 0) return 0;
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char tx_buf[2];
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if (ch == '\n')
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{
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tx_buf[0] = '\r';
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tx_buf[1] = '\n';
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if (write(connect_fd, tx_buf, 2) < 0) return EOF;
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return 2;
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}
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else
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{
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tx_buf[0] = ch;
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if (write(connect_fd, tx_buf, 1) < 0) return EOF;
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return 1;
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}
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}
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void Myprint_getchar(char *ch)
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{
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while (1)
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{
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int ret;
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if (xSemaphoreTake(xSemaphore, portMAX_DELAY) == pdTRUE)
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{
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if (xSemaphoreTake(xMutex, portMAX_DELAY) == pdTRUE)
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{
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ret = rd_RingbufferGet(g_rb_handle, ch, 1);
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xSemaphoreGive(xMutex);
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if (ret > 0)
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{
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return;
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}
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}
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}
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}
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}
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#endif
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void ShowLWIPstate(void)
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{
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stats_display();
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}
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void luaprint_talnet(const char *fmt, ...)
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{
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char temp[RECV_SIZE];
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va_list args;
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va_start(args, fmt);
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vsprintf(temp, fmt, args);
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write(connect_fd, &temp, strlen(temp));
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va_end(args);
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}
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void vTCPServer_Task(void *pvParameters)
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{
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int listen_fd;
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struct sockaddr_in server_addr, client_addr;
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char temp[RECV_SIZE];
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int ret;
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socklen_t addr_len = sizeof(struct sockaddr_in);
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// 1. 创建 socket (AF_INET表示IPv4, SOCK_STREAM表示TCP)
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listen_fd = socket(AF_INET, SOCK_STREAM, 0);
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if (listen_fd < 0)
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{
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log_e("Socket create failed!\r\n");
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vTaskDelete(NULL);
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return;
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}
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// 2. 绑定 IP 和端口 (INADDR_ANY 表示绑定本地所有网卡IP)
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memset(&server_addr, 0, sizeof(server_addr));
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server_addr.sin_family = AF_INET;
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server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
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server_addr.sin_port = htons(PORT);
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if (bind(listen_fd, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0)
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{
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log_e("Bind failed!\r\n");
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close(listen_fd);
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vTaskDelete(NULL);
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return;
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}
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// 3. 开始监听，最大排队连接数为 5
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if (listen(listen_fd, 5) < 0)
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{
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log_e("Listen failed!\r\n");
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close(listen_fd);
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vTaskDelete(NULL);
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return;
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}
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log_i("TCP Server is running on port %d...\r\n", PORT);
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while (1)
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{
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// 4. 阻塞等待客户端连接
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connect_fd = accept(listen_fd, (struct sockaddr *)&client_addr, &addr_len);
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if (connect_fd < 0)
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{
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log_w("Accept failed!\r\n");
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continue;
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}
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#ifdef USE_TALNET
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lua_init(luaprint_talnet);
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#endif
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// // 第一条指令：要求客户端关闭本地回显，交由服务器处理
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// unsigned char cmd_echo[] = { 255, 254, 1 };
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// // IAC(255) DO(253) ECHO(1)
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//
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// // 第二条指令：禁用“前进抑制”，强制进入实时字符流模式
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// unsigned char cmd_sga[] = { 255, 254, 3 };
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// // IAC(255) DO(253) SUPPRESS-GO-AHEAD(3)
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//
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// write(connect_fd, cmd_echo, sizeof(cmd_echo));
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// write(connect_fd, cmd_sga, sizeof(cmd_sga));
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// int enable = 1; // 1 表示启用 TCP_NODELAY（即禁用 Nagle 算法）
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// setsockopt(connect_fd, IPPROTO_TCP, TCP_NODELAY, &enable, sizeof(enable));
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// 打印连接的客户端 IP 和端口
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log_i("New client connected: %s:%d\r\n",
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inet_ntoa(client_addr.sin_addr), ntohs(client_addr.sin_port));
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// 5. 循环接收并回显数据
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// char *welcome = "\n> ";
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// write(connect_fd, welcome, strlen(welcome));
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while (1)
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{
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// 阻塞接收数据
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ret = read(connect_fd, &temp, RECV_SIZE);
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if (ret > 0)
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{
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#ifdef USE_TALNET
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lua_repl(temp, ret, 0);
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#else
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write(connect_fd, temp, ret);
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#endif
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#if 0
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if (xSemaphoreTake(xMutex, portMAX_DELAY) == pdTRUE)
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{
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int iLen = rd_RingbufferPutForce(g_rb_handle, &temp, ret);
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xSemaphoreGive(xMutex);
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if (iLen > 0)
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{
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xSemaphoreGive(xSemaphore);
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}
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}
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#endif
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}
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else if (ret == 0)
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{
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// 客户端正常断开连接
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log_i("Client disconnected.\r\n");
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break;
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}
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else
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{
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// 接收出错
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log_e("Read data error!\r\n");
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break;
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}
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}
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// 关闭与当前客户端的连接
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close(connect_fd);
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}
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}
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#endif
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