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Add a TELNET server to the webserver project, which currently can list active TCP connections.

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This commit is contained in:
Dean Camera 2010-02-03 10:39:33 +00:00
parent 77e86e7d82
commit 16ea5aa7a2
14 changed files with 383 additions and 106 deletions
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56
Projects/Webserver/Lib/HTTPServerApp.c
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@ -98,36 +98,36 @@ void HTTPServerApp_Callback(void)
if (uip_aborted() || uip_timedout() || uip_closed())
{
/* Connection is being terminated for some reason - close file handle */
f_close(&AppState->FileHandle);
AppState->FileOpen = false;
f_close(&AppState->HTTPServer.FileHandle);
AppState->HTTPServer.FileOpen = false;
/* Lock to the closed state so that no further processing will occur on the connection */
AppState->CurrentState = WEBSERVER_STATE_Closed;
AppState->NextState = WEBSERVER_STATE_Closed;
AppState->HTTPServer.CurrentState = WEBSERVER_STATE_Closed;
AppState->HTTPServer.NextState = WEBSERVER_STATE_Closed;
}
if (uip_connected())
{
/* New connection - initialize connection state values */
AppState->CurrentState = WEBSERVER_STATE_OpenRequestedFile;
AppState->NextState = WEBSERVER_STATE_OpenRequestedFile;
AppState->FileOpen = false;
AppState->ACKedFilePos = 0;
AppState->SentChunkSize = 0;
AppState->HTTPServer.CurrentState = WEBSERVER_STATE_OpenRequestedFile;
AppState->HTTPServer.NextState = WEBSERVER_STATE_OpenRequestedFile;
AppState->HTTPServer.FileOpen = false;
AppState->HTTPServer.ACKedFilePos = 0;
AppState->HTTPServer.SentChunkSize = 0;
}
if (uip_acked())
{
/* Add the amount of ACKed file data to the total sent file bytes counter */
AppState->ACKedFilePos += AppState->SentChunkSize;
AppState->HTTPServer.ACKedFilePos += AppState->HTTPServer.SentChunkSize;
/* Progress to the next state once the current state's data has been ACKed */
AppState->CurrentState = AppState->NextState;
AppState->HTTPServer.CurrentState = AppState->HTTPServer.NextState;
}
if (uip_rexmit() || uip_acked() || uip_newdata() || uip_connected() || uip_poll())
{
switch (AppState->CurrentState)
switch (AppState->HTTPServer.CurrentState)
{
case WEBSERVER_STATE_OpenRequestedFile:
HTTPServerApp_OpenRequestedFile();
@ -144,7 +144,7 @@ void HTTPServerApp_Callback(void)
case WEBSERVER_STATE_Closing:
uip_close();
AppState->NextState = WEBSERVER_STATE_Closed;
AppState->HTTPServer.NextState = WEBSERVER_STATE_Closed;
break;
}
}
@ -175,19 +175,19 @@ static void HTTPServerApp_OpenRequestedFile(void)
/* If the requested filename has more that just the leading '/' path in it, copy it over */
if (strlen(RequestedFileName) > 1)
strncpy(AppState->FileName, &RequestedFileName[1], (sizeof(AppState->FileName) - 1));
strncpy(AppState->HTTPServer.FileName, &RequestedFileName[1], (sizeof(AppState->HTTPServer.FileName) - 1));
else
strcpy(AppState->FileName, "index.htm");
strcpy(AppState->HTTPServer.FileName, "index.htm");
/* Ensure filename is null-terminated */
AppState->FileName[(sizeof(AppState->FileName) - 1)] = 0x00;
AppState->HTTPServer.FileName[(sizeof(AppState->HTTPServer.FileName) - 1)] = 0x00;
/* Try to open the file from the Dataflash disk */
AppState->FileOpen = (f_open(&AppState->FileHandle, AppState->FileName, FA_OPEN_EXISTING | FA_READ) == FR_OK);
AppState->HTTPServer.FileOpen = (f_open(&AppState->HTTPServer.FileHandle, AppState->HTTPServer.FileName, FA_OPEN_EXISTING | FA_READ) == FR_OK);
/* Lock to the SendResponseHeader state until connection terminated */
AppState->CurrentState = WEBSERVER_STATE_SendResponseHeader;
AppState->NextState = WEBSERVER_STATE_SendResponseHeader;
AppState->HTTPServer.CurrentState = WEBSERVER_STATE_SendResponseHeader;
AppState->HTTPServer.NextState = WEBSERVER_STATE_SendResponseHeader;
}
/** HTTP Server State handler for the HTTP Response Header Send state. This state manages the transmission of
@ -202,15 +202,15 @@ static void HTTPServerApp_SendResponseHeader(void)
uint16_t HeaderLength;
/* Determine which HTTP header should be sent to the client */
if (AppState->FileOpen)
if (AppState->HTTPServer.FileOpen)
{
HeaderToSend = HTTP200Header;
AppState->NextState = WEBSERVER_STATE_SendMIMETypeHeader;
AppState->HTTPServer.NextState = WEBSERVER_STATE_SendMIMETypeHeader;
}
else
{
HeaderToSend = HTTP404Header;
AppState->NextState = WEBSERVER_STATE_Closing;
AppState->HTTPServer.NextState = WEBSERVER_STATE_Closing;
}
/* Copy over the HTTP response header and send it to the receiving client */
@ -227,7 +227,7 @@ static void HTTPServerApp_SendMIMETypeHeader(void)
uip_tcp_appstate_t* const AppState = &uip_conn->appstate;
char* const AppData = (char*)uip_appdata;
char* Extension = strpbrk(AppState->FileName, ".");
char* Extension = strpbrk(AppState->HTTPServer.FileName, ".");
uint16_t MIMEHeaderLength = 0;
/* Check to see if a file extension was found for the requested filename */
@ -261,7 +261,7 @@ static void HTTPServerApp_SendMIMETypeHeader(void)
uip_send(AppData, MIMEHeaderLength);
/* When the MIME header is ACKed, progress to the data send stage */
AppState->NextState = WEBSERVER_STATE_SendData;
AppState->HTTPServer.NextState = WEBSERVER_STATE_SendData;
}
/** HTTP Server State handler for the Data Send state. This state manages the transmission of file chunks
@ -276,14 +276,14 @@ static void HTTPServerApp_SendData(void)
uint16_t MaxSegmentSize = uip_mss();
/* Return file pointer to the last ACKed position */
f_lseek(&AppState->FileHandle, AppState->ACKedFilePos);
f_lseek(&AppState->HTTPServer.FileHandle, AppState->HTTPServer.ACKedFilePos);
/* Read the next chunk of data from the open file */
f_read(&AppState->FileHandle, AppData, MaxSegmentSize, &AppState->SentChunkSize);
f_read(&AppState->HTTPServer.FileHandle, AppData, MaxSegmentSize, &AppState->HTTPServer.SentChunkSize);
/* Send the next file chunk to the receiving client */
uip_send(AppData, AppState->SentChunkSize);
uip_send(AppData, AppState->HTTPServer.SentChunkSize);
/* Check if we are at the last chunk of the file, if so next ACK should close the connection */
AppState->NextState = (MaxSegmentSize != AppState->SentChunkSize) ? WEBSERVER_STATE_Closing : WEBSERVER_STATE_SendData;
AppState->HTTPServer.NextState = (MaxSegmentSize != AppState->HTTPServer.SentChunkSize) ? WEBSERVER_STATE_Closing : WEBSERVER_STATE_SendData;
}