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main.c
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main.c
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#include <errno.h>
#include <sys/stat.h>
#include <sys/select.h>
#include <sys/types.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <signal.h>
#include "wanp.h"
#include "checksum.h"
#include "cmd.h"
#define WAN_MSG_MAX_SIZE 65536
#define TIME_OUT 30 // in unit of second
#define WAN_PORT 33027
#define LISTENQ 1
#define MAX_ARGC 10
#define ARGV_BUF_SIZE 64
extern const unsigned char * WAN_EndFlag;
extern const int WAN_EndFlagSize;
extern const Cmd Hello;
extern const Cmd Burn;
extern const Cmd Startos;
char argv[MAX_ARGC][ARGV_BUF_SIZE];
int argc;
// int GetArgcArgv(int * argc, char ** argv);
// void InitArgv();
uint8_t kernel_name[64];
uint8_t kernel_size[32];
uint8_t addr[32];
uint8_t crc[32];
uint32_t i_addr;
uint32_t i_kernel_size;
uint32_t i_crc;
int socket_alive;
void sig_pipe_handler(int sig);
void sig_pipe_handler(int sig)
{
socket_alive = 0;
}
void main()
{
int ret;
int i, j, k, maxfd, listenfd, connfd;
// int sockfd[LISTENQ];
int reuse = 1;
fd_set rset, wset;
char buf[WAN_MSG_MAX_SIZE];
char cmd_buf[WAN_MSG_MAX_SIZE];
char tmp_buf[WAN_MSG_MAX_SIZE];
char * tmp_buf_pointer;
char * endptr;
char opt[64];
socklen_t clilen;
struct sockaddr_in cliaddr, servaddr;
uint16_t csum;
uint16_t msg_size_net;
uint16_t msg_size;
signal(SIGPIPE, sig_pipe_handler);
listenfd = socket(AF_INET, SOCK_STREAM, 0);
if(listenfd < 0) {
perror("socket");
exit(1);
}
if (setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse)) < 0) {
perror("setsockopet");
exit(1);
}
bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
servaddr.sin_port = htons(WAN_PORT);
if(bind(listenfd, (struct sockaddr *)&servaddr, sizeof(servaddr)) < 0) {
perror("bind");
exit(1);
}
listen(listenfd, LISTENQ);
maxfd = listenfd; /* initialize */
do {
clilen = sizeof(cliaddr);
connfd = accept(listenfd, (struct sockaddr *)&cliaddr, &clilen);
socket_alive = 1;
while(socket_alive) {
FD_ZERO(&rset);
FD_SET(connfd, &rset);
maxfd = connfd;
switch(select(maxfd+1, &rset, NULL, NULL, NULL)) {
case -1:
socket_alive = 0;
close(connfd);
break;
case 0:
break;
default:
#ifdef WANP
if(recv(connfd, buf, WAN_HEADER_SIZE, MSG_WAITALL) != WAN_HEADER_SIZE) {
perror("recv");
close(connfd);
break;
}
Wan_GetSize(buf, &msg_size);
if(recv(connfd, buf + WAN_HEADER_SIZE, msg_size - WAN_HEADER_SIZE, MSG_WAITALL) != msg_size - WAN_HEADER_SIZE) {
perror("recv");
close(connfd);
break;
}
if(Wan_CheckMsg(buf, msg_size) < 0) {
perror("wan message check error");
close(connfd);
break;
}
#else
for(i = 0; i < WAN_MSG_MAX_SIZE; i++) {
if(recv(connfd, buf+i, 1, 0) != 1) {
perror("recv");
close(connfd);
break;
}
if('\n' == buf[i]) {
msg_size = i + 1;
break;
}
}
#endif
buf[msg_size] = '\0';
GetCmd(buf, cmd_buf);
// printf("cmd: %s\n", cmd_buf);
// printf("cmd(buf): %s\n", buf);
*tmp_buf = '\0';
if(strcmp(cmd_buf, Hello.Name) == 0) {
ret = DoHello(buf);
if(0 == ret) {
RespOK(buf, cmd_buf, NULL);
} else if(HELP_HELLO == ret) {
tmp_buf_pointer = tmp_buf;
tmp_buf_pointer += sprintf(tmp_buf_pointer, "hello: \r\n");
tmp_buf_pointer += sprintf(tmp_buf_pointer, " a test message to confirm connection.\r\n");
RespOK(buf, cmd_buf, tmp_buf);
} else {
RespErr(buf, cmd_buf, "hello err");
}
} else if(strcmp(cmd_buf, Burn.Name) == 0) {
ret = DoBurn(buf, kernel_name, addr, kernel_size, crc);
if(ret == 0) {
if('0' == addr[0] && ('x' == addr[1] || 'X' == addr[1])) {
i_addr = strtol((const char *)addr, &endptr, 16);
} else {
i_addr = atoi((const char *)addr);
}
if('0' == kernel_size[0] && ('x' == kernel_size[1] || 'X' == kernel_size[1])) {
i_kernel_size = strtol((const char *)kernel_size, &endptr, 16);
} else {
i_kernel_size = atoi((const char *)kernel_size);
}
if('0' == crc[0] && ('x' == crc[1] || 'X' == crc[1])) {
i_crc = strtol((const char *)crc, &endptr, 16);
} else {
i_crc = atoi((const char *)crc);
}
// i_addr = atoi(addr);
// i_kernel_size = atoi(kernel_size);
// i_crc = atoi(crc);
// printf("i_addr: %d\n", i_addr);
// printf("i_kernel_size: %d\n", i_kernel_size);
// printf("i_crc: %d\n", i_crc);
printf("u_addr:u_kernel_size:u_crc=%08x:%08x:%08x\r\n", i_addr, i_kernel_size, i_crc);
RespOK(buf, cmd_buf, NULL);
} else if(HELP_BURN == ret) {
tmp_buf_pointer = tmp_buf;
tmp_buf_pointer += sprintf(tmp_buf_pointer, "burn: \r\n");
tmp_buf_pointer += sprintf(tmp_buf_pointer, " burn kernel to specific address.\r\n");
tmp_buf_pointer += sprintf(tmp_buf_pointer, " -f\r\n");
tmp_buf_pointer += sprintf(tmp_buf_pointer, " -a\r\n");
RespOK(buf, cmd_buf, tmp_buf);
} else {
RespErr(buf, cmd_buf, "paramter err");
}
} else if(strcmp(cmd_buf, Startos.Name) == 0) {
ret = DoStartos(buf);
if(0 == ret) {
RespOK(buf, cmd_buf, NULL);
} else if(HELP_STARTOS == ret) {
tmp_buf_pointer = tmp_buf;
// j = sprintf(tmp_buf_pointer, "startos: \r\n");
tmp_buf_pointer += sprintf(tmp_buf_pointer, "startos: \r\n");
// tmp_buf_pointer += j;
tmp_buf_pointer += sprintf(tmp_buf_pointer, " launch the OS kernel.\r\n");
*tmp_buf_pointer = '\0';
RespOK(buf, cmd_buf, tmp_buf);
} else {
RespErr(buf, cmd_buf, "startos err");
}
} else {
RespErr(buf, cmd_buf, "Command not found");
}
if((msg_size = SealPacket(buf)) < 0) {
printf("SealPacket error\r\n");
break;
}
printf("send: ");
for(i = 0; i < msg_size; i++) {
printf("%c", buf[i]);
}
printf("###\n");
if(send(connfd, buf, msg_size, 0) < 0) {
perror("send");
close(connfd);
break;
}
printf("\n");
}
}
}while(1);
}