forked from xuos/xiuos
289 lines
7.0 KiB
C
289 lines
7.0 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <sys/socket.h>
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#include <pthread.h>
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#include <time.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <sys/time.h>
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#include <assert.h>
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#include <netdb.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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typedef int BOOL;
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#define true 1
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#define false 0
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int serverfd;//服务器socket
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int clientfd[100000];//客户端的socketfd,100个元素，clientfd[0]~clientfd[99]
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int size = 99999;//用来控制进入聊天室的人数为50以内
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int PORT = 9898;//端口号
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typedef struct sockaddr meng;
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socklen_t len;
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struct ota_header_t
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{
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int16_t frame_flag; ///< frame start flag 2 Bytes
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uint8_t dev_type; ///< device type
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uint8_t burn_mode; ///< data burn way
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unsigned long total_len; ///< send data total length caculated from each frame_len
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unsigned long dev_hid; ///< device hardware version
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unsigned long dev_sid; ///< device software version
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char resv[32]; ///< reserve
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};
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struct ota_frame_t
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{
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uint32_t frame_id; ///< Current frame id
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uint32_t frame_len; ///< Current frame data length
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char frame_data[224]; ///< Current frame data,max length 224
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uint32_t crc; ///< Current frame data crc
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};
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struct ota_data
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{
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struct ota_header_t header;
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struct ota_frame_t frame;
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};
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pthread_t ota_ktask;
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/**
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* @description: CRC16 check
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* @param data data buffer
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* @param length data length
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* @return check code
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*/
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uint32_t OtaCrc16(uint8_t * data, uint8_t length)
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{
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int j;
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unsigned int reg_crc=0xFFFF;
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while (length--) {
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reg_crc ^= *data++;
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for (j=0;j<8;j++) {
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if(reg_crc & 0x01)
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reg_crc=reg_crc >>1 ^ 0xA001;
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else
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reg_crc=reg_crc >>1;
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}
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}
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return reg_crc;
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}
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void init(void)
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{
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serverfd = socket(PF_INET,SOCK_STREAM,0);
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if (serverfd == -1)
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{
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perror("创建socket失败");
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exit(-1);
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}
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//为套接字设置ip协议 设置端口号 并自动获取本机ip转化为网络ip
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struct sockaddr_in addr;//存储套接字的信息
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addr.sin_family = AF_INET;//地址族
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addr.sin_port = htons(PORT);//设置server端端口号，你可以随便设置,当sin_port = 0时，系统随机选择一个未被使用的端口号
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addr.sin_addr.s_addr = htons(INADDR_ANY);//当sin_addr = INADDR_ANY时，表示从本机的任一网卡接收数据
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//绑定套接字
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int on = 1;
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if(setsockopt(serverfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(int)) < 0)
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{
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perror("端口设置失败");
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exit(-1);
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}
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if (bind(serverfd,(meng*)&addr,sizeof(addr)) == -1)
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{
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perror("绑定失败");
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exit(-1);
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}
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if (listen(serverfd,100) == -1)
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{//监听最大连接数
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perror("设置监听失败");
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exit(-1);
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}
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}
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int OtaFileSend(int fd)
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{
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unsigned char buf[32] = { 0 };
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struct ota_data data;
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FILE *file_fd;
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char ch;
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int len = 0;
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int try_times = 5;
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int ret = 0;
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int frame_cnt = 0;
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int file_length = 0;
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char * file_buf = NULL;
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file_fd = fopen("/tmp/xiuos_app.bin", "r");
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if (NULL == file_fd){
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printf("open file failed.\n");
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return -1;
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}
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while((ch = fgetc(file_fd)) != EOF)
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{
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memset(&data, 0, sizeof(data));
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data.header.frame_flag = 0x5A5A;
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len = fread( data.frame.frame_data, 200, 1, file_fd );
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if(len > 0) {
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data.frame.frame_id = frame_cnt;
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data.frame.frame_len = len;
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data.frame.crc = OtaCrc16(data.frame.frame_data, len);
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file_length += len;
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}
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memcpy(&data.frame.frame_data[len], "!@", strlen("!@")); /* add '!@' as ending flag */
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fseek(file_fd, len, SEEK_CUR);
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try_again:
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send(fd, &data, sizeof(data), MSG_NOSIGNAL);
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len = recv(fd, buf, sizeof(buf), 0);
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if(0 == strncmp(buf, "ok!@", len))
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{
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frame_cnt++;
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continue;
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}
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else
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{
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if(try_times > 0)
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{
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try_times--;
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goto try_again;
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}
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else
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{
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printf("send frame[%d] 5 times failed.\n",frame_cnt);
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ret = -1;
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break;
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}
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}
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}
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if (ret == 0)
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{
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file_buf = malloc(file_length);
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memset(file_buf, 0, file_length);
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memset(&data, 0, sizeof(data));
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data.header.frame_flag = 0x5A5A;
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len = fread(file_buf, file_length,1,file_fd);
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if(len > 0) {
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data.header.total_len = file_length;
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data.frame.frame_len = strlen("aiit_ota_end!@");;
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data.frame.crc = OtaCrc16(file_buf, len);
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memcpy(data.frame.frame_data,"aiit_ota_end!@",strlen("aiit_ota_end!@"));
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}
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send(fd, &data, sizeof(data), MSG_NOSIGNAL);
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free(file_buf);
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}
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fclose(file_fd);
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return ret;
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}
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void* server_thread(void* p)
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{
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int fd = *(int*)p;
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unsigned char buf[32] = { 0 };
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struct ota_data data;
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int ret = 0;
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printf("pthread = %d\n",fd);
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while(1)
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{
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memset(&data, 0 , sizeof(struct ota_data));
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data.header.frame_flag = 0x5A5A;
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memcpy(data.frame.frame_data,"aiit_ota_start!@",strlen("aiit_ota_start!@"));
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data.frame.frame_len = strlen("aiit_ota_start!@");
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send(fd, &data, sizeof(data), MSG_NOSIGNAL);
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len = recv(fd, buf, sizeof(buf), 0);
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if (len <= 0)
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{
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continue;
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}
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else
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{
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if(0 == strncmp(buf, "ok!@", len))
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{
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ret = OtaFileSend(fd);
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if (ret == 0) {
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printf("ota file send successful.\n");
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break;
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} else { /* ota failed then restart the ota process */
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continue;
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}
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}
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}
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}
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close(fd);
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}
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void server(void)
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{
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printf("Server startup\n");
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while(1)
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{
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struct sockaddr_in fromaddr;
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socklen_t len = sizeof(fromaddr);
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int fd = accept(serverfd,(meng*)&fromaddr,&len);
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//调用accept进入堵塞状态，等待客户端的连接
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if (fd == -1)
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{
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printf("The client connection is wrong...\n");
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continue;
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}
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int i = 0;
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for (i = 0;i < size;i++)
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{
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if (clientfd[i] == 0)
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{
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//记录客户端的socket
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clientfd[i] = fd;
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//有客户端连接之后，启动线程给此客户服务
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pthread_t tid;
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pthread_create(&tid,0,server_thread,&fd);
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break;
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}
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if (size == i)
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{
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//发送给客户端说聊天室满了
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char* str = "Devices full";
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printf("%s", str);
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send(fd,str,strlen(str),0);
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close(fd);
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}
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}
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}
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}
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int main(void)
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{
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init();
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server();
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}
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