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[/] [plasma/] [trunk/] [kernel/] [netutil.c] - Blame information for rev 252

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/*--------------------------------------------------------------------
 * TITLE: Plasma TCP/IP Network Utilities
 * AUTHOR: Steve Rhoads (rhoadss@yahoo.com)
 * DATE CREATED: 4/20/07
 * FILENAME: netutil.c
 * PROJECT: Plasma CPU core
 * COPYRIGHT: Software placed into the public domain by the author.
 *    Software 'as is' without warranty.  Author liable for nothing.
 * DESCRIPTION:
 *    Plasma FTP server and FTP client and TFTP server and client
 *    and Telnet server.
 *--------------------------------------------------------------------*/
#ifdef WIN32
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define _LIBC
#undef INCLUDE_FILESYS
#define INCLUDE_FILESYS
#else
#define INCLUDE_FILESYS
#endif
#include "rtos.h"
#include "tcpip.h"
#ifdef WIN32
#define UartPrintf printf
#define OS_MQueueCreate(A,B,C) 0
#define OS_MQueueGet(A,B,C) 0
#define OS_ThreadCreate(A,B,C,D,E) 0
#endif
 
 
//******************* FTP Server ************************
typedef struct {
   IPSocket *socket;
   int ip, port, bytes, done, canReceive;
   FILE *file;
} FtpdInfo;
 
static void FtpdSender(IPSocket *socket)
{
   unsigned char buf[600];
   int i, bytes, bytes2;
   FtpdInfo *info = (FtpdInfo*)socket->userPtr;
 
   if(info == NULL || info->done)
      return;
   fseek(info->file, info->bytes, 0);
   for(i = 0; i < 5; ++i)
   {
      bytes = fread(buf, 1, 512, info->file);
      bytes2 = IPWrite(socket, buf, bytes);
      info->bytes += bytes2;
      if(bytes != bytes2)
         return;
      if(bytes < 512)
      {
         fclose(info->file);
         IPClose(socket);
         info->done = 1;
         IPPrintf(info->socket, "226 Done\r\n");
         return;
      }
   }
}
 
 
static void FtpdReceiver(IPSocket *socket)
{
   unsigned char buf[600];
   int bytes, state = socket->state;
   FtpdInfo *info = (FtpdInfo*)socket->userPtr;
 
   if(info == NULL || info->done)
      return;
   do
   {
      bytes = IPRead(socket, buf, sizeof(buf));
      fwrite(buf, 1, bytes, info->file);
   } while(bytes);
   if(state > IP_TCP)
   {
      fclose(info->file);
      IPClose(socket);
      info->done = 1;
      IPPrintf(info->socket, "226 Done\r\n");
      return;
   }
}
 
 
static void FtpdServer(IPSocket *socket)
{
   uint8 buf[600];
   int bytes;
   int ip0, ip1, ip2, ip3, port0, port1;
   IPSocket *socketOut;
   FtpdInfo *info = (FtpdInfo*)socket->userPtr;
 
   if(socket == NULL)
      return;
   bytes = IPRead(socket, buf, sizeof(buf)-1);
   buf[bytes] = 0;
   //printf("(%s)\n", buf);
   if(socket->userPtr == NULL)
   {
      info = (FtpdInfo*)malloc(sizeof(FtpdInfo));
      if(info == NULL)
         return;
      memset(info, 0, sizeof(FtpdInfo));
      socket->userPtr = info;
      info->socket = socket;
      socket->timeoutReset = 60;
      IPPrintf(socket, "220 Connected to Plasma\r\n");
   }
   else if(strstr((char*)buf, "USER"))
   {
      if(strstr((char*)buf, "PlasmaSend"))
         info->canReceive = 1;
      IPPrintf(socket, "331 Password?\r\n");
   }
   else if(strstr((char*)buf, "PASS"))
   {
      IPPrintf(socket, "230 Logged in\r\n");
   }
   else if(strstr((char*)buf, "PORT"))
   {
      if(info == NULL)
         return;
      sscanf((char*)buf + 5, "%d,%d,%d,%d,%d,%d", &ip0, &ip1, &ip2, &ip3, &port0, &port1);
      info->ip = (ip0 << 24) | (ip1 << 16) | (ip2 << 8) | ip3;
      info->port = (port0 << 8) | port1;
      //printf("ip=0x%x port=%d\n", info->ip, info->port);
      IPPrintf(socket, "200 OK\r\n");
   }
   else if(strstr((char*)buf, "RETR") || strstr((char*)buf, "STOR"))
   {
      char *ptr = strstr((char*)buf, "\r");
      if(ptr)
         *ptr = 0;
      if(info == NULL)
         return;
      info->file = NULL;
      info->bytes = 0;
      info->done = 0;
      if(strstr((char*)buf, "RETR"))
         info->file = fopen((char*)buf + 5, "rb");
      else if(info->canReceive)
         info->file = fopen((char*)buf + 5, "wb");
      if(info->file)
      {
         IPPrintf(socket, "150 File ready\r\n");
         if(strstr((char*)buf, "RETR"))
            socketOut = IPOpen(IP_MODE_TCP, info->ip, info->port, FtpdSender);
         else
            socketOut = IPOpen(IP_MODE_TCP, info->ip, info->port, FtpdReceiver);
         if(socketOut)
            socketOut->userPtr = info;
      }
      else
      {
         IPPrintf(socket, "500 Error\r\n");
      }
   }
   else if(strstr((char*)buf, "QUIT"))
   {
      if(socket->userPtr)
         free(socket->userPtr);
      IPPrintf(socket, "221 Bye\r\n");
      IPClose(socket);
   }
   else if(bytes)
   {
      IPPrintf(socket, "500 Error\r\n");
   }
}
 
 
void FtpdInit(int UseFiles)
{
   (void)UseFiles;
   IPOpen(IP_MODE_TCP, 0, 21, FtpdServer);
}
 
 
//******************* FTP Client ************************
 
typedef struct {
   uint32 ip, port;
   char user[80], passwd[80], filename[80];
   uint8 *buf;
   int size, bytes, send, state;
} FtpInfo;
 
 
static void FtpCallbackTransfer(IPSocket *socket)
{
   int bytes, state = socket->state;
   FtpInfo *info = (FtpInfo*)socket->userPtr;
 
   //printf("FtpCallbackTransfer\n");
   if(info == NULL)
      return;
   bytes = info->size - info->bytes;
   if(info->send == 0)
      bytes = IPRead(socket, info->buf + info->bytes, bytes);
   else
      bytes = IPWrite(socket, info->buf + info->bytes, bytes);
   info->bytes += bytes;
   if(info->bytes == info->size || (bytes == 0 && state > IP_TCP))
   {
      socket->userFunc(info->buf, info->bytes);
      free(info);
      socket->userPtr = NULL;
      IPClose(socket);
   }
}
 
 
static void FtpCallback(IPSocket *socket)
{
   char buf[600];
   FtpInfo *info = (FtpInfo*)socket->userPtr;
   int bytes, value;
 
   bytes = IPRead(socket, (uint8*)buf, sizeof(buf)-1);
   if(bytes == 0)
      return;
   buf[bytes] = 0;
   sscanf(buf, "%d", &value);
   if(bytes > 2)
      buf[bytes-2] = 0;
   //printf("FtpCallback(%d:%s)\n", socket->userData, buf);
   if(value / 100 != 2 && value / 100 != 3)
      return;
   buf[0] = 0;
   switch(socket->userData) {
   case 0:
      sprintf(buf, "USER %s\r\n", info->user);
      socket->userData = 1;
      break;
   case 1:
      sprintf(buf, "PASS %s\r\n", info->passwd);
      socket->userData = 2;
      if(value == 331)
         break;  //possible fall-through
   case 2:
      sprintf(buf, "PORT %d,%d,%d,%d,%d,%d\r\n",
         info->ip >> 24, (uint8)(info->ip >> 16),
         (uint8)(info->ip >> 8), (uint8)info->ip,
         (uint8)(info->port >> 8), (uint8)info->port);
      socket->userData = 3;
      break;
   case 3:
      if(info->send == 0)
         sprintf(buf, "RETR %s\r\n", info->filename);
      else
         sprintf(buf, "STOR %s\r\n", info->filename);
      socket->userData = 4;
      break;
   case 4:
      sprintf(buf, "QUIT\r\n");
      socket->userData = 9;
      break;
   }
   IPWrite(socket, (uint8*)buf, strlen(buf));
   IPWriteFlush(socket);
   if(socket->userData == 9)
      IPClose(socket);
}
 
 
IPSocket *FtpTransfer(uint32 ip, char *user, char *passwd,
                      char *filename, uint8 *buf, int size,
                      int send, void (*callback)(uint8 *data, int size))
{
   IPSocket *socket, *socketTransfer;
   FtpInfo *info;
   uint8 *ptr;
   info = (FtpInfo*)malloc(sizeof(FtpInfo));
   if(info == NULL)
      return NULL;
   strncpy(info->user, user, 80);
   strncpy(info->passwd, passwd, 80);
   strncpy(info->filename, filename, 80);
   info->buf = buf;
   info->size = size;
   info->send = send;
   info->bytes = 0;
   info->state = 0;
   info->port = 2000;
   socketTransfer = IPOpen(IP_MODE_TCP, 0, info->port, FtpCallbackTransfer);
   socketTransfer->userPtr = info;
   socketTransfer->userFunc = callback;
   socket = IPOpen(IP_MODE_TCP, ip, 21, FtpCallback);
   socket->userPtr = info;
   socket->userFunc = callback;
   ptr = socket->headerSend;
   info->ip = IPAddressSelf();
   return socket;
}
 
 
//******************* TFTP Server ************************
 
 
static void TftpdCallback(IPSocket *socket)
{
   unsigned char buf[512+4];
   int bytes, blockNum;
   FILE *file = (FILE*)socket->userPtr;
   bytes = IPRead(socket, buf, sizeof(buf));
   //printf("TfptdCallback bytes=%d\n", bytes);
   if(bytes < 4 || buf[0])
      return;
   if(buf[1] == 1)  //RRQ = Read Request
   {
      if(file)
         fclose(file);
      file = fopen((char*)buf+2, "rb");
      socket->userPtr = file;
      if(file == NULL)
      {
         buf[0] = 0;
         buf[1] = 5;   //ERROR
         buf[2] = 0;
         buf[3] = 0;
         buf[4] = 'X'; //Error string
         buf[5] = 0;
         IPWrite(socket, buf, 6);
         return;
      }
   }
   if(buf[1] == 1 || buf[1] == 4) //ACK
   {
      if(file == NULL)
         return;
      if(buf[1] == 1)
         blockNum = 0;
      else
         blockNum = (buf[2] << 8) | buf[3];
      ++blockNum;
      buf[0] = 0;
      buf[1] = 3;  //DATA
      buf[2] = (uint8)(blockNum >> 8);
      buf[3] = (uint8)blockNum;
      fseek(file, (blockNum-1)*512, 0);
      bytes = fread(buf+4, 1, 512, file);
      IPWrite(socket, buf, bytes+4);
   }
}
 
 
void TftpdInit(void)
{
   IPSocket *socket;
   socket = IPOpen(IP_MODE_UDP, 0, 69, TftpdCallback);
}
 
 
//******************* TFTP Client ************************
 
 
static void TftpCallback(IPSocket *socket)
{
   unsigned char buf[512+4];
   int bytes, blockNum, length;
 
   bytes = IPRead(socket, buf, sizeof(buf));
   if(bytes < 4 || buf[0])
      return;
   blockNum = (buf[2] << 8) | buf[3];
   length = blockNum * 512 - 512 + bytes - 4;
   //printf("TftpCallback(%d,%d)\n", buf[1], blockNum);
   if(length > (int)socket->userData)
   {
      bytes -= length - (int)socket->userData;
      length = (int)socket->userData;
   }
   if(buf[1] == 3) //DATA
   {
      memcpy((uint8*)socket->userPtr + blockNum * 512 - 512, buf+4, bytes-4);
      buf[1] = 4; //ACK
      IPWrite(socket, buf, 4);
      if(bytes-4 < 512)
      {
         socket->userFunc(socket->userPtr, length);
         IPClose(socket);
      }
   }
}
 
 
IPSocket *TftpTransfer(uint32 ip, char *filename, uint8 *buffer, int size,
                       void (*callback)(uint8 *data, int bytes))
{
   IPSocket *socket;
   uint8 buf[512+4];
   int bytes;
   socket = IPOpen(IP_MODE_UDP, ip, 69, TftpCallback);
   socket->userPtr = buffer;
   socket->userData = size;
   socket->userFunc = callback;
   buf[0] = 0;
   buf[1] = 1; //read
   strcpy((char*)buf+2, filename);
   bytes = strlen(filename);
   strcpy((char*)buf+bytes+3, "octet");
   IPWrite(socket, buf, bytes+9);
   return socket;
}
 
 
//******************* Telnet Server ************************
 
#define COMMAND_BUFFER_SIZE 80
#define COMMAND_BUFFER_COUNT 10
static char CommandHistory[400];
static char *CommandPtr[COMMAND_BUFFER_COUNT];
static int CommandIndex;
static TelnetFunc_t *TelnetFuncList;
static int BusyBox(IPSocket *socket, char *command);
 
 
static void TelnetServer(IPSocket *socket)
{
   uint8 buf[COMMAND_BUFFER_SIZE+4];
   char bufOut[COMMAND_BUFFER_SIZE+32];
   int bytes, i, j, length, rc;
   char *ptr, *command = socket->userPtr;
   bytes = IPRead(socket, buf, sizeof(buf)-1);
   if(bytes == 0)
   {
      if(socket->userData)
         return;
      socket->userData = 1;
      socket->userPtr = command = (char*)malloc(COMMAND_BUFFER_SIZE);
      if(command == NULL)
      {
         IPClose(socket);
         return;
      }
      socket->timeoutReset = 300;
      buf[0] = 255; //IAC
      buf[1] = 251; //WILL
      buf[2] = 3;   //suppress go ahead
      buf[3] = 255; //IAC
      buf[4] = 251; //WILL
      buf[5] = 1;   //echo
      strcpy((char*)buf+6, "Welcome to Plasma.\r\n-> ");
      IPWrite(socket, buf, 6+23);
      IPWriteFlush(socket);
      command[0] = 0;
      return;
   }
   if(command == NULL)
      return;
   buf[bytes] = 0;
   length = (int)strlen(command);
   for(j = 0; j < bytes; ++j)
   {
      if(buf[j] == 255)
         return;
      if(buf[j] == 8 || (buf[j] == 27 && buf[j+2] == 'D'))
      {
         if(buf[j] == 27)
            j += 2;
         if(length)
         {
            // Backspace
            command[--length] = 0;
            bufOut[0] = 8;
            bufOut[1] = ' ';
            bufOut[2] = 8;
            IPWrite(socket, (uint8*)bufOut, 3);
         }
      }
      else if(buf[j] == 27)
      {
         // Command History
         if(buf[j+2] == 'A')
         {
            if(++CommandIndex > COMMAND_BUFFER_COUNT)
               CommandIndex = COMMAND_BUFFER_COUNT;
         }
         else if(buf[j+2] == 'B')
         {
            if(--CommandIndex < 0)
               CommandIndex = 0;
         }
         else
            return;
         bufOut[0] = 8;
         bufOut[1] = ' ';
         bufOut[2] = 8;
         for(i = 0; i < length; ++i)
            IPWrite(socket, (uint8*)bufOut, 3);
         if(CommandIndex && CommandPtr[CommandIndex-1])
            strcpy(command, CommandPtr[CommandIndex-1]);
         else
            command[0] = 0;
         length = (int)strlen(command);
         IPWrite(socket, (uint8*)command, length);
         j += 2;
      }
      else
      {
         if(length < COMMAND_BUFFER_SIZE-4 || (length <
            COMMAND_BUFFER_SIZE-2 && (buf[j] == '\r' || buf[j] == '\n')))
         {
            IPWrite(socket, buf+j, 1);
            command[length] = buf[j];
            command[++length] = 0;
         }
      }
      ptr = strstr(command, "\r\n");
      if(ptr)
      {
         ptr[0] = 0;
         bufOut[0] = 0;
         if(command[0])
         {
            // Save command in CommandHistory
            memcpy(CommandHistory + length + 1, CommandHistory,
               sizeof(CommandHistory) - length - 1);
            for(i = COMMAND_BUFFER_COUNT-2; i >= 0; --i)
            {
               if(CommandPtr[i+1] && CommandPtr[i+1] + length + 1 >=
                  CommandHistory + sizeof(CommandHistory))
                  CommandPtr[i+1] = NULL;
               else if(CommandPtr[i])
                  CommandPtr[i+1] = CommandPtr[i] + length + 1;
            }
            CommandPtr[CommandIndex] = CommandHistory;
            strcpy(CommandHistory, command);
         }
         if(strncmp(command, "help", 4) == 0)
         {
            sprintf((char*)bufOut, "Commands: help, exit, cat, cp, ls, mkdir, rm");
            for(i = 0; TelnetFuncList[i].name; ++i)
            {
               strcat((char*)bufOut, ", ");
               strcat((char*)bufOut, TelnetFuncList[i].name);
            }
         }
         else if(strncmp(command, "exit", 4) == 0)
         {
            free(command);
            socket->userPtr = NULL;
            IPClose(socket);
            return;
         }
         else if(command[0])
         {
            strcpy(bufOut, command);
            ptr = strstr(bufOut, " ");
            if(ptr)
               ptr[0] = 0;
            for(i = 0; TelnetFuncList[i].name; ++i)
            {
               if(strcmp(bufOut, TelnetFuncList[i].name) == 0)
               {
                  TelnetFuncList[i].func(socket, command);
                  break;
               }
            }
            bufOut[0] = 0;
            if(TelnetFuncList[i].name == NULL)
            {
               rc = BusyBox(socket, command);
               if(rc)
                  sprintf((char*)bufOut, "Unknown command (%s)", command);
            }
         }
         strcat((char*)bufOut, "\r\n-> ");
         IPPrintf(socket, (char*)bufOut);
         command[0] = 0;
         length = 0;
         CommandIndex = 0;
      }
   }
   IPWriteFlush(socket);
}
 
 
void TelnetInit(TelnetFunc_t *funcList)
{
   IPSocket *socket;
   TelnetFuncList = funcList;
   socket = IPOpen(IP_MODE_TCP, 0, 23, TelnetServer);
}
 
 
//******************* Console ************************
 
static uint8 myBuffer[1024*3];
static IPSocket *socketTelnet;
 
 
//Implements cat, cp, rm, mkdir, ls
int BusyBox(IPSocket *socket, char *command)
{
   FILE *fileIn, *fileOut;
   int bytes, bytes2;
   char bufA[COMMAND_BUFFER_SIZE];
   char bufB[COMMAND_BUFFER_SIZE];
   char bufC[COMMAND_BUFFER_SIZE];
   char bufD[COMMAND_BUFFER_SIZE];
   memset(bufA, 0, sizeof(bufA));
   memset(bufB, 0, sizeof(bufB));
   memset(bufC, 0, sizeof(bufC));
   memset(bufD, 0, sizeof(bufD));
   sscanf(command, "%s %s %s %s", bufA, bufB, bufC, bufD);
   if(strcmp(bufA, "cat") == 0)
   {
      fileIn = fopen(bufB, "r");
      if(fileIn)
      {
         for(;;)
         {
            bytes = fread(bufD, 1, sizeof(bufD), fileIn);
            if(bytes == 0)
               break;
            bytes2 = IPWrite(socket, (uint8*)bufD, bytes);
            if(bytes != bytes2)
               printf("(%d %d) ", bytes, bytes2);
         }
         fclose(fileIn);
      }
      return 0;
   }
   else if(strcmp(bufA, "cp") == 0)
   {
      fileIn = fopen(bufB, "r");
      if(fileIn)
      {
         fileOut = fopen(bufC, "w");
         if(fileOut)
         {
            for(;;)
            {
               bytes = fread(bufD, 1, sizeof(bufD), fileIn);
               if(bytes == 0)
                  break;
               bytes2 = fwrite(bufD, 1, bytes, fileOut);
            }
            fclose(fileOut);
         }
         fclose(fileIn);
      }
      return 0;
   }
   else if(strcmp(bufA, "rm") == 0)
   {
      OS_fdelete(bufB);
      return 0;
   }
   else if(strcmp(bufA, "mkdir") == 0)
   {
      OS_fmkdir(bufB);
      return 0;
   }
   else if(strcmp(bufA, "ls") == 0)
   {
      fileIn = fopen(bufB, "r");
      if(fileIn)
      {
         for(;;)
         {
            bytes = OS_fdir(fileIn, bufD);
            if(bytes)
               break;
            strcat(bufD, "  ");
            IPWrite(socket, (uint8*)bufD, strlen(bufD));
         }
         fclose(fileIn);
      }
      return 0;
   }
   return -1;
}
 
 
void TransferDone(uint8 *data, int bytes)
{
   printf("TransferDone(0x%x, %d)\n", data, bytes);
   data[bytes] = 0;
   if(bytes > 500)
      data[500] = 0;
   printf("%s\n", data);
}
 
 
static void ConsoleInfo(IPSocket *socket, char *command)
{
   (void)command;
   IPPrintf(socket, "Steve was here!");
}
 
 
static void ConsoleMath(IPSocket *socket, char *command)
{
   int v1, v2;
   char buf[20], buf2[20];
   (void)socket;
   if(strlen(command) < 6)
   {
      IPPrintf(socket, "Usage: math <number> <operator> <value>\r\n");
      return;
   }
   sscanf(command, "%s%d%s%d", buf, &v1, buf2, &v2);
   if(buf2[0] == '+')
      v1 += v2;
   else if(buf2[0] == '-')
      v1 -= v2;
   else if(buf2[0] == '*')
      v1 *= v2;
   else if(buf2[0] == '/')
   {
      if(v2 != 0)
         v1 /= v2;
   }
   sprintf((char*)myBuffer, "%d", v1);
   IPPrintf(socket, (char*)myBuffer);
}
 
 
void PingCallback(IPSocket *socket)
{
   IPSocket *socket2 = socket->userPtr;
   //printf("Ping Reply\n");
   IPClose(socket);
   if(socket2)
      IPPrintf(socket2, "Ping Reply");
   else
      printf("Ping Reply\n");
}
 
 
static void DnsResultCallback(IPSocket *socket, uint32 ip, void *arg)
{
   char buf[COMMAND_BUFFER_SIZE];
   IPSocket *socketTelnet = arg;
   IPSocket *socketPing;
   (void)socket;
   sprintf(buf,  "ip=%d.%d.%d.%d\r\n",
      (uint8)(ip >> 24), (uint8)(ip >> 16), (uint8)(ip >> 8), (uint8)ip);
   IPPrintf(socketTelnet, buf);
   socketPing = IPOpen(IP_MODE_PING, ip, 0, PingCallback);
   socketPing->userPtr = socketTelnet;
   myBuffer[0] = 'A';
   IPWrite(socketPing, myBuffer, 1);
}
 
 
static void ConsolePing(IPSocket *socket, char *command)
{
   int ip0, ip1, ip2, ip3;
   char buf[20];
   IPSocket *socketPing;
   if('0' <= command[5] && command[5] <= '9')
   {
      sscanf(command, "%s %d.%d.%d.%d", buf, &ip0, &ip1, &ip2, &ip3);
      ip0 = (ip0 << 24) | (ip1 << 16) | (ip2 << 8) | ip3;
      socketPing = IPOpen(IP_MODE_PING, ip0, 0, PingCallback);
      socketPing->userPtr = socket;
      myBuffer[0] = 'A';
      IPWrite(socketPing, myBuffer, 1);
      IPPrintf(socket, "Sent ping");
   }
   else
   {
      IPResolve(command+5, DnsResultCallback, socket);
      IPPrintf(socket, "Sent DNS request");
   }
}
 
 
void ConsoleTransferDone(uint8 *data, int length)
{
   data[length] = 0;
   IPPrintf(socketTelnet, "Transfer Done");
}
 
 
static void ConsoleFtp(IPSocket *socket, char *command)
{
   char buf[40], user[40], passwd[40], name[COMMAND_BUFFER_SIZE];
   int ip0, ip1, ip2, ip3;
   if(strlen(command) < 10)
   {
      IPPrintf(socket, "ftp #.#.#.# User Password File");
      return;
   }
   sscanf(command, "%s %d.%d.%d.%d %s %s %s",
      buf, &ip0, &ip1, &ip2, &ip3, user, passwd, name);
   ip0 = (ip0 << 24) | (ip1 << 16) | (ip2 << 8) | ip3;
   socketTelnet = socket;
   FtpTransfer(ip0, user, passwd, name, myBuffer, sizeof(myBuffer)-1,
      0, ConsoleTransferDone);
}
 
 
static void ConsoleTftp(IPSocket *socket, char *command)
{
   char buf[COMMAND_BUFFER_SIZE], name[80];
   int ip0, ip1, ip2, ip3;
   if(strlen(command) < 10)
   {
      IPPrintf(socket, "tftp #.#.#.# File");
      return;
   }
   sscanf(command, "%s %d.%d.%d.%d %s",
      buf, &ip0, &ip1, &ip2, &ip3, name);
   ip0 = (ip0 << 24) | (ip1 << 16) | (ip2 << 8) | ip3;
   socketTelnet = socket;
   TftpTransfer(ip0, name, myBuffer, sizeof(myBuffer)-1, ConsoleTransferDone);
}
 
 
static void ConsoleShow(IPSocket *socket, char *command)
{
   (void)command;
   IPPrintf(socket, (char*)myBuffer);
}
 
 
static void ConsoleClear(IPSocket *socket, char *command)
{
   (void)socket;
   (void)command;
   memset(myBuffer, 0, sizeof(myBuffer));
}
 
 
static void ConsoleMkfile(IPSocket *socket, char *command)
{
   OS_FILE *file;
   (void)command;
   file = fopen("myfile.txt", "w");
   fwrite("Hello World!", 1, 12, file);
   fclose(file);
   IPPrintf(socket, "Created myfile.txt");
}
 
 
static TelnetFunc_t MyFuncs[] = {
   {"info", 0, ConsoleInfo},
   {"math", 0, ConsoleMath},
   {"ping", 0, ConsolePing},
   {"ftp", 0, ConsoleFtp},
   {"tftp", 0, ConsoleTftp},
   {"show", 0, ConsoleShow},
   {"clear", 0, ConsoleClear},
   {"mkfile", 0, ConsoleMkfile},
   {NULL, 0, NULL}
};
 
 
void ConsoleInit(void)
{
   FtpdInit(1);
   TftpdInit();
   TelnetInit(MyFuncs);
}

Line No.	Rev	Author	Line
1	210	rhoads	`/*--------------------------------------------------------------------`
2			`* TITLE: Plasma TCP/IP Network Utilities`
3			`* AUTHOR: Steve Rhoads (rhoadss@yahoo.com)`
4			`* DATE CREATED: 4/20/07`
5			`* FILENAME: netutil.c`
6			`* PROJECT: Plasma CPU core`
7			`* COPYRIGHT: Software placed into the public domain by the author.`
8			`* Software 'as is' without warranty. Author liable for nothing.`
9			`* DESCRIPTION:`
10			`* Plasma FTP server and FTP client and TFTP server and client`
11			`* and Telnet server.`
12			`--------------------------------------------------------------------/`
13			`#ifdef WIN32`
14			`#include <stdio.h>`
15			`#include <stdlib.h>`
16			`#include <string.h>`
17			`#include <ctype.h>`
18			`#define _LIBC`
19	229	rhoads	`#undef INCLUDE_FILESYS`
20	215	rhoads	`#define INCLUDE_FILESYS`
21			`#else`
22			`#define INCLUDE_FILESYS`
23	210	rhoads	`#endif`
24			`#include "rtos.h"`
25			`#include "tcpip.h"`
26			`#ifdef WIN32`
27			`#define UartPrintf printf`
28			`#define OS_MQueueCreate(A,B,C) 0`
29			`#define OS_MQueueGet(A,B,C) 0`
30			`#define OS_ThreadCreate(A,B,C,D,E) 0`
31			`#endif`
32
33	215	rhoads
34			`//***************** FTP Server **********************`
35	210	rhoads	`typedef struct {`
36			`IPSocket *socket;`
37			`int ip, port, bytes, done, canReceive;`
38			`FILE *file;`
39			`} FtpdInfo;`
40
41			`static void FtpdSender(IPSocket *socket)`
42			`{`
43			`unsigned char buf[600];`
44			`int i, bytes, bytes2;`
45			`FtpdInfo info = (FtpdInfo)socket->userPtr;`
46
47			`if(info == NULL \|\| info->done)`
48			`return;`
49			`fseek(info->file, info->bytes, 0);`
50			`for(i = 0; i < 5; ++i)`
51			`{`
52			`bytes = fread(buf, 1, 512, info->file);`
53			`bytes2 = IPWrite(socket, buf, bytes);`
54			`info->bytes += bytes2;`
55			`if(bytes != bytes2)`
56			`return;`
57			`if(bytes < 512)`
58			`{`
59			`fclose(info->file);`
60			`IPClose(socket);`
61			`info->done = 1;`
62			`IPPrintf(info->socket, "226 Done\r\n");`
63			`return;`
64			`}`
65			`}`
66			`}`
67
68
69			`static void FtpdReceiver(IPSocket *socket)`
70			`{`
71			`unsigned char buf[600];`
72	225	rhoads	`int bytes, state = socket->state;`
73	210	rhoads	`FtpdInfo info = (FtpdInfo)socket->userPtr;`
74
75			`if(info == NULL \|\| info->done)`
76			`return;`
77	225	rhoads	`do`
78	210	rhoads	`{`
79	225	rhoads	`bytes = IPRead(socket, buf, sizeof(buf));`
80			`fwrite(buf, 1, bytes, info->file);`
81			`} while(bytes);`
82			`if(state > IP_TCP)`
83			`{`
84	210	rhoads	`fclose(info->file);`
85			`IPClose(socket);`
86			`info->done = 1;`
87			`IPPrintf(info->socket, "226 Done\r\n");`
88			`return;`
89			`}`
90			`}`
91
92
93	215	rhoads	`static void FtpdServer(IPSocket *socket)`
94	210	rhoads	`{`
95			`uint8 buf[600];`
96			`int bytes;`
97			`int ip0, ip1, ip2, ip3, port0, port1;`
98			`IPSocket *socketOut;`
99			`FtpdInfo info = (FtpdInfo)socket->userPtr;`
100
101			`if(socket == NULL)`
102			`return;`
103			`bytes = IPRead(socket, buf, sizeof(buf)-1);`
104			`buf[bytes] = 0;`
105			`//printf("(%s)\n", buf);`
106			`if(socket->userPtr == NULL)`
107			`{`
108			`info = (FtpdInfo*)malloc(sizeof(FtpdInfo));`
109			`if(info == NULL)`
110			`return;`
111			`memset(info, 0, sizeof(FtpdInfo));`
112			`socket->userPtr = info;`
113			`info->socket = socket;`
114	229	rhoads	`socket->timeoutReset = 60;`
115	210	rhoads	`IPPrintf(socket, "220 Connected to Plasma\r\n");`
116			`}`
117			`else if(strstr((char*)buf, "USER"))`
118			`{`
119			`if(strstr((char*)buf, "PlasmaSend"))`
120			`info->canReceive = 1;`
121			`IPPrintf(socket, "331 Password?\r\n");`
122			`}`
123			`else if(strstr((char*)buf, "PASS"))`
124			`{`
125			`IPPrintf(socket, "230 Logged in\r\n");`
126			`}`
127			`else if(strstr((char*)buf, "PORT"))`
128			`{`
129			`if(info == NULL)`
130			`return;`
131			`sscanf((char*)buf + 5, "%d,%d,%d,%d,%d,%d", &ip0, &ip1, &ip2, &ip3, &port0, &port1);`
132			`info->ip = (ip0 << 24) \| (ip1 << 16) \| (ip2 << 8) \| ip3;`
133			`info->port = (port0 << 8) \| port1;`
134			`//printf("ip=0x%x port=%d\n", info->ip, info->port);`
135			`IPPrintf(socket, "200 OK\r\n");`
136			`}`
137			`else if(strstr((char)buf, "RETR") \|\| strstr((char)buf, "STOR"))`
138			`{`
139			`char ptr = strstr((char)buf, "\r");`
140			`if(ptr)`
141			`*ptr = 0;`
142			`if(info == NULL)`
143			`return;`
144			`info->file = NULL;`
145			`info->bytes = 0;`
146			`info->done = 0;`
147			`if(strstr((char*)buf, "RETR"))`
148			`info->file = fopen((char*)buf + 5, "rb");`
149			`else if(info->canReceive)`
150			`info->file = fopen((char*)buf + 5, "wb");`
151			`if(info->file)`
152			`{`
153			`IPPrintf(socket, "150 File ready\r\n");`
154			`if(strstr((char*)buf, "RETR"))`
155			`socketOut = IPOpen(IP_MODE_TCP, info->ip, info->port, FtpdSender);`
156			`else`
157			`socketOut = IPOpen(IP_MODE_TCP, info->ip, info->port, FtpdReceiver);`
158			`if(socketOut)`
159			`socketOut->userPtr = info;`
160			`}`
161			`else`
162			`{`
163			`IPPrintf(socket, "500 Error\r\n");`
164			`}`
165			`}`
166			`else if(strstr((char*)buf, "QUIT"))`
167			`{`
168			`if(socket->userPtr)`
169			`free(socket->userPtr);`
170			`IPPrintf(socket, "221 Bye\r\n");`
171			`IPClose(socket);`
172			`}`
173			`else if(bytes)`
174			`{`
175			`IPPrintf(socket, "500 Error\r\n");`
176			`}`
177			`}`
178
179
180			`void FtpdInit(int UseFiles)`
181			`{`
182			`(void)UseFiles;`
183			`IPOpen(IP_MODE_TCP, 0, 21, FtpdServer);`
184			`}`
185
186
187			`//***************** FTP Client **********************`
188
189			`typedef struct {`
190			`uint32 ip, port;`
191			`char user[80], passwd[80], filename[80];`
192			`uint8 *buf;`
193			`int size, bytes, send, state;`
194			`} FtpInfo;`
195
196
197			`static void FtpCallbackTransfer(IPSocket *socket)`
198			`{`
199	225	rhoads	`int bytes, state = socket->state;`
200	210	rhoads	`FtpInfo info = (FtpInfo)socket->userPtr;`
201
202			`//printf("FtpCallbackTransfer\n");`
203			`if(info == NULL)`
204			`return;`
205			`bytes = info->size - info->bytes;`
206			`if(info->send == 0)`
207			`bytes = IPRead(socket, info->buf + info->bytes, bytes);`
208			`else`
209			`bytes = IPWrite(socket, info->buf + info->bytes, bytes);`
210			`info->bytes += bytes;`
211	225	rhoads	`if(info->bytes == info->size \|\| (bytes == 0 && state > IP_TCP))`
212	210	rhoads	`{`
213			`socket->userFunc(info->buf, info->bytes);`
214			`free(info);`
215			`socket->userPtr = NULL;`
216			`IPClose(socket);`
217			`}`
218			`}`
219
220
221			`static void FtpCallback(IPSocket *socket)`
222			`{`
223			`char buf[600];`
224			`FtpInfo info = (FtpInfo)socket->userPtr;`
225			`int bytes, value;`
226
227			`bytes = IPRead(socket, (uint8*)buf, sizeof(buf)-1);`
228			`if(bytes == 0)`
229			`return;`
230			`buf[bytes] = 0;`
231			`sscanf(buf, "%d", &value);`
232			`if(bytes > 2)`
233			`buf[bytes-2] = 0;`
234			`//printf("FtpCallback(%d:%s)\n", socket->userData, buf);`
235			`if(value / 100 != 2 && value / 100 != 3)`
236			`return;`
237			`buf[0] = 0;`
238			`switch(socket->userData) {`
239			`case 0:`
240			`sprintf(buf, "USER %s\r\n", info->user);`
241			`socket->userData = 1;`
242			`break;`
243			`case 1:`
244			`sprintf(buf, "PASS %s\r\n", info->passwd);`
245			`socket->userData = 2;`
246			`if(value == 331)`
247			`break; //possible fall-through`
248			`case 2:`
249			`sprintf(buf, "PORT %d,%d,%d,%d,%d,%d\r\n",`
250			`info->ip >> 24, (uint8)(info->ip >> 16),`
251			`(uint8)(info->ip >> 8), (uint8)info->ip,`
252			`(uint8)(info->port >> 8), (uint8)info->port);`
253			`socket->userData = 3;`
254			`break;`
255			`case 3:`
256			`if(info->send == 0)`
257			`sprintf(buf, "RETR %s\r\n", info->filename);`
258			`else`
259			`sprintf(buf, "STOR %s\r\n", info->filename);`
260			`socket->userData = 4;`
261			`break;`
262			`case 4:`
263			`sprintf(buf, "QUIT\r\n");`
264			`socket->userData = 9;`
265			`break;`
266			`}`
267			`IPWrite(socket, (uint8*)buf, strlen(buf));`
268			`IPWriteFlush(socket);`
269			`if(socket->userData == 9)`
270			`IPClose(socket);`
271			`}`
272
273
274			`IPSocket FtpTransfer(uint32 ip, char user, char *passwd,`
275			`char filename, uint8 buf, int size,`
276			`int send, void (callback)(uint8 data, int size))`
277			`{`
278			`IPSocket socket, socketTransfer;`
279			`FtpInfo *info;`
280			`uint8 *ptr;`
281			`info = (FtpInfo*)malloc(sizeof(FtpInfo));`
282			`if(info == NULL)`
283			`return NULL;`
284			`strncpy(info->user, user, 80);`
285			`strncpy(info->passwd, passwd, 80);`
286			`strncpy(info->filename, filename, 80);`
287			`info->buf = buf;`
288			`info->size = size;`
289			`info->send = send;`
290			`info->bytes = 0;`
291			`info->state = 0;`
292			`info->port = 2000;`
293			`socketTransfer = IPOpen(IP_MODE_TCP, 0, info->port, FtpCallbackTransfer);`
294			`socketTransfer->userPtr = info;`
295			`socketTransfer->userFunc = callback;`
296			`socket = IPOpen(IP_MODE_TCP, ip, 21, FtpCallback);`
297			`socket->userPtr = info;`
298			`socket->userFunc = callback;`
299			`ptr = socket->headerSend;`
300			`info->ip = IPAddressSelf();`
301			`return socket;`
302			`}`
303
304
305			`//***************** TFTP Server **********************`
306
307
308			`static void TftpdCallback(IPSocket *socket)`
309			`{`
310			`unsigned char buf[512+4];`
311			`int bytes, blockNum;`
312			`FILE file = (FILE)socket->userPtr;`
313			`bytes = IPRead(socket, buf, sizeof(buf));`
314			`//printf("TfptdCallback bytes=%d\n", bytes);`
315			`if(bytes < 4 \|\| buf[0])`
316			`return;`
317			`if(buf[1] == 1) //RRQ = Read Request`
318			`{`
319			`if(file)`
320			`fclose(file);`
321			`file = fopen((char*)buf+2, "rb");`
322			`socket->userPtr = file;`
323			`if(file == NULL)`
324			`{`
325			`buf[0] = 0;`
326			`buf[1] = 5; //ERROR`
327			`buf[2] = 0;`
328			`buf[3] = 0;`
329			`buf[4] = 'X'; //Error string`
330			`buf[5] = 0;`
331			`IPWrite(socket, buf, 6);`
332			`return;`
333			`}`
334			`}`
335			`if(buf[1] == 1 \|\| buf[1] == 4) //ACK`
336			`{`
337			`if(file == NULL)`
338			`return;`
339			`if(buf[1] == 1)`
340			`blockNum = 0;`
341			`else`
342			`blockNum = (buf[2] << 8) \| buf[3];`
343			`++blockNum;`
344			`buf[0] = 0;`
345			`buf[1] = 3; //DATA`
346			`buf[2] = (uint8)(blockNum >> 8);`
347			`buf[3] = (uint8)blockNum;`
348			`fseek(file, (blockNum-1)*512, 0);`
349			`bytes = fread(buf+4, 1, 512, file);`
350			`IPWrite(socket, buf, bytes+4);`
351			`}`
352			`}`
353
354
355			`void TftpdInit(void)`
356			`{`
357			`IPSocket *socket;`
358			`socket = IPOpen(IP_MODE_UDP, 0, 69, TftpdCallback);`
359			`}`
360
361
362			`//***************** TFTP Client **********************`
363
364
365			`static void TftpCallback(IPSocket *socket)`
366			`{`
367			`unsigned char buf[512+4];`
368			`int bytes, blockNum, length;`
369
370			`bytes = IPRead(socket, buf, sizeof(buf));`
371			`if(bytes < 4 \|\| buf[0])`
372			`return;`
373			`blockNum = (buf[2] << 8) \| buf[3];`
374			`length = blockNum * 512 - 512 + bytes - 4;`
375			`//printf("TftpCallback(%d,%d)\n", buf[1], blockNum);`
376			`if(length > (int)socket->userData)`
377			`{`
378			`bytes -= length - (int)socket->userData;`
379			`length = (int)socket->userData;`
380			`}`
381			`if(buf[1] == 3) //DATA`
382			`{`
383			`memcpy((uint8)socket->userPtr + blockNum 512 - 512, buf+4, bytes-4);`
384			`buf[1] = 4; //ACK`
385			`IPWrite(socket, buf, 4);`
386			`if(bytes-4 < 512)`
387			`{`
388			`socket->userFunc(socket->userPtr, length);`
389			`IPClose(socket);`
390			`}`
391			`}`
392			`}`
393
394
395			`IPSocket TftpTransfer(uint32 ip, char filename, uint8 *buffer, int size,`
396			`void (callback)(uint8 data, int bytes))`
397			`{`
398			`IPSocket *socket;`
399			`uint8 buf[512+4];`
400			`int bytes;`
401			`socket = IPOpen(IP_MODE_UDP, ip, 69, TftpCallback);`
402			`socket->userPtr = buffer;`
403			`socket->userData = size;`
404			`socket->userFunc = callback;`
405			`buf[0] = 0;`
406			`buf[1] = 1; //read`
407			`strcpy((char*)buf+2, filename);`
408			`bytes = strlen(filename);`
409			`strcpy((char*)buf+bytes+3, "octet");`
410			`IPWrite(socket, buf, bytes+9);`
411			`return socket;`
412			`}`
413
414
415			`//***************** Telnet Server **********************`
416
417	215	rhoads	`#define COMMAND_BUFFER_SIZE 80`
418			`#define COMMAND_BUFFER_COUNT 10`
419			`static char CommandHistory[400];`
420			`static char *CommandPtr[COMMAND_BUFFER_COUNT];`
421			`static int CommandIndex;`
422	210	rhoads	`static TelnetFunc_t *TelnetFuncList;`
423	229	rhoads	`static int BusyBox(IPSocket socket, char command);`
424	210	rhoads
425
426			`static void TelnetServer(IPSocket *socket)`
427			`{`
428	215	rhoads	`uint8 buf[COMMAND_BUFFER_SIZE+4];`
429			`char bufOut[COMMAND_BUFFER_SIZE+32];`
430	229	rhoads	`int bytes, i, j, length, rc;`
431	215	rhoads	`char ptr, command = socket->userPtr;`
432	210	rhoads	`bytes = IPRead(socket, buf, sizeof(buf)-1);`
433			`if(bytes == 0)`
434			`{`
435			`if(socket->userData)`
436			`return;`
437			`socket->userData = 1;`
438	215	rhoads	`socket->userPtr = command = (char*)malloc(COMMAND_BUFFER_SIZE);`
439			`if(command == NULL)`
440			`{`
441			`IPClose(socket);`
442			`return;`
443			`}`
444	229	rhoads	`socket->timeoutReset = 300;`
445	210	rhoads	`buf[0] = 255; //IAC`
446			`buf[1] = 251; //WILL`
447			`buf[2] = 3; //suppress go ahead`
448			`buf[3] = 255; //IAC`
449			`buf[4] = 251; //WILL`
450			`buf[5] = 1; //echo`
451	229	rhoads	`strcpy((char*)buf+6, "Welcome to Plasma.\r\n-> ");`
452	210	rhoads	`IPWrite(socket, buf, 6+23);`
453			`IPWriteFlush(socket);`
454			`command[0] = 0;`
455			`return;`
456			`}`
457	215	rhoads	`if(command == NULL)`
458			`return;`
459	210	rhoads	`buf[bytes] = 0;`
460	215	rhoads	`length = (int)strlen(command);`
461			`for(j = 0; j < bytes; ++j)`
462	210	rhoads	`{`
463	215	rhoads	`if(buf[j] == 255)`
464			`return;`
465			`if(buf[j] == 8 \|\| (buf[j] == 27 && buf[j+2] == 'D'))`
466	210	rhoads	`{`
467	215	rhoads	`if(buf[j] == 27)`
468			`j += 2;`
469			`if(length)`
470			`{`
471			`// Backspace`
472			`command[--length] = 0;`
473			`bufOut[0] = 8;`
474			`bufOut[1] = ' ';`
475			`bufOut[2] = 8;`
476			`IPWrite(socket, (uint8*)bufOut, 3);`
477			`}`
478	210	rhoads	`}`
479	215	rhoads	`else if(buf[j] == 27)`
480	210	rhoads	`{`
481	215	rhoads	`// Command History`
482			`if(buf[j+2] == 'A')`
483	210	rhoads	`{`
484	215	rhoads	`if(++CommandIndex > COMMAND_BUFFER_COUNT)`
485			`CommandIndex = COMMAND_BUFFER_COUNT;`
486	210	rhoads	`}`
487	215	rhoads	`else if(buf[j+2] == 'B')`
488			`{`
489			`if(--CommandIndex < 0)`
490			`CommandIndex = 0;`
491			`}`
492			`else`
493			`return;`
494			`bufOut[0] = 8;`
495			`bufOut[1] = ' ';`
496			`bufOut[2] = 8;`
497			`for(i = 0; i < length; ++i)`
498			`IPWrite(socket, (uint8*)bufOut, 3);`
499			`if(CommandIndex && CommandPtr[CommandIndex-1])`
500			`strcpy(command, CommandPtr[CommandIndex-1]);`

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