Add new Printer Device Class driver.

[pub/USBasp.git] / Projects / Webserver / Lib / DHCPClientApp.c

diff --git a/Projects/Webserver/Lib/DHCPClientApp.c b/Projects/Webserver/Lib/DHCPClientApp.c
index 7f82253..7bca044 100644 (file)
--- a/Projects/Webserver/Lib/DHCPClientApp.c
+++ b/Projects/Webserver/Lib/DHCPClientApp.c
@@ -1,24 +1,24 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2010.
-              
+     Copyright (C) Dean Camera, 2013.
+

   dean [at] fourwalledcubicle [dot] com
   dean [at] fourwalledcubicle [dot] com

-      www.fourwalledcubicle.com
+           www.lufa-lib.org

 */
 
 /*
 */
 
 /*

-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2013  Dean Camera (dean [at] fourwalledcubicle [dot] com)

 
 

-  Permission to use, copy, modify, distribute, and sell this 
+  Permission to use, copy, modify, distribute, and sell this

   software and its documentation for any purpose is hereby granted
   software and its documentation for any purpose is hereby granted

-  without fee, provided that the above copyright notice appear in 
+  without fee, provided that the above copyright notice appear in

   all copies and that both that the copyright notice and this
   all copies and that both that the copyright notice and this

-  permission notice and warranty disclaimer appear in supporting 
-  documentation, and that the name of the author not be used in 
-  advertising or publicity pertaining to distribution of the 
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the

   software without specific, written prior permission.
 
   software without specific, written prior permission.
 

-  The author disclaim all warranties with regard to this
+  The author disclaims all warranties with regard to this

   software, including all implied warranties of merchantability
   and fitness.  In no event shall the author be liable for any
   special, indirect or consequential damages or any damages
   software, including all implied warranties of merchantability
   and fitness.  In no event shall the author be liable for any
   special, indirect or consequential damages or any damages


@@ -28,8 +28,6 @@
   this software.
 */
 
   this software.
 */
 

-#if defined(ENABLE_DHCP_CLIENT) || defined(__DOXYGEN__)
-

 /** \file
  *
  *  DHCP Client Application. When connected to the uIP stack, this will retrieve IP configuration settings from the
 /** \file
  *
  *  DHCP Client Application. When connected to the uIP stack, this will retrieve IP configuration settings from the


@@ -39,18 +37,20 @@
 #define  INCLUDE_FROM_DHCPCLIENTAPP_C
 #include "DHCPClientApp.h"
 
 #define  INCLUDE_FROM_DHCPCLIENTAPP_C
 #include "DHCPClientApp.h"
 

+#if defined(ENABLE_DHCP_CLIENT) || defined(__DOXYGEN__)
+

 /** Initialization function for the DHCP client. */
 void DHCPClientApp_Init(void)
 {
        /* Create a new UDP connection to the DHCP server port for the DHCP solicitation */
 /** Initialization function for the DHCP client. */
 void DHCPClientApp_Init(void)
 {
        /* Create a new UDP connection to the DHCP server port for the DHCP solicitation */

-       struct uip_udp_conn* Connection = uip_udp_new(&uip_broadcast_addr, HTONS(DHCPC_SERVER_PORT));
-       
+       struct uip_udp_conn* Connection = uip_udp_new(&uip_broadcast_addr, HTONS(DHCP_SERVER_PORT));
+

        /* If the connection was successfully created, bind it to the local DHCP client port */
        if (Connection != NULL)
        {
                uip_udp_appstate_t* const AppState = &Connection->appstate;
        /* If the connection was successfully created, bind it to the local DHCP client port */
        if (Connection != NULL)
        {
                uip_udp_appstate_t* const AppState = &Connection->appstate;

-               uip_udp_bind(Connection, HTONS(DHCPC_CLIENT_PORT));
-               
+               uip_udp_bind(Connection, HTONS(DHCP_CLIENT_PORT));
+

                /* Set the initial client state */
                AppState->DHCPClient.CurrentState = DHCP_STATE_SendDiscover;
 
                /* Set the initial client state */
                AppState->DHCPClient.CurrentState = DHCP_STATE_SendDiscover;
 


@@ -58,8 +58,8 @@ void DHCPClientApp_Init(void)
                timer_set(&AppState->DHCPClient.Timeout, CLOCK_SECOND / 2);
        }
 }
                timer_set(&AppState->DHCPClient.Timeout, CLOCK_SECOND / 2);
        }
 }

- 
-/** uIP stack application callback for the DHCP client. This function must be called each time the TCP/IP stack 
+
+/** uIP stack application callback for the DHCP client. This function must be called each time the TCP/IP stack

  *  needs a UDP packet to be processed.
  */
 void DHCPClientApp_Callback(void)
  *  needs a UDP packet to be processed.
  */
 void DHCPClientApp_Callback(void)


@@ -67,7 +67,7 @@ void DHCPClientApp_Callback(void)
        uip_udp_appstate_t* const AppState    = &uip_udp_conn->appstate;
        DHCP_Header_t*      const AppData     = (DHCP_Header_t*)uip_appdata;
        uint16_t                  AppDataSize = 0;
        uip_udp_appstate_t* const AppState    = &uip_udp_conn->appstate;
        DHCP_Header_t*      const AppData     = (DHCP_Header_t*)uip_appdata;
        uint16_t                  AppDataSize = 0;

-       
+

        switch (AppState->DHCPClient.CurrentState)
        {
                case DHCP_STATE_SendDiscover:
        switch (AppState->DHCPClient.CurrentState)
        {
                case DHCP_STATE_SendDiscover:


@@ -77,19 +77,19 @@ void DHCPClientApp_Callback(void)
 
                        /* Fill out the DHCP response header */
                        AppDataSize += DHCPClientApp_FillDHCPHeader(AppData, DHCP_DISCOVER, AppState);
 
                        /* Fill out the DHCP response header */
                        AppDataSize += DHCPClientApp_FillDHCPHeader(AppData, DHCP_DISCOVER, AppState);

-                       
+

                        /* Add the required DHCP options list to the packet */
                        uint8_t RequiredOptionList[] = {DHCP_OPTION_SUBNET_MASK, DHCP_OPTION_ROUTER, DHCP_OPTION_DNS_SERVER};
                        /* Add the required DHCP options list to the packet */
                        uint8_t RequiredOptionList[] = {DHCP_OPTION_SUBNET_MASK, DHCP_OPTION_ROUTER, DHCP_OPTION_DNS_SERVER};

-                       AppDataSize += DHCPClientApp_SetOption(AppData->Options, DHCP_OPTION_REQ_LIST, sizeof(RequiredOptionList),
-                                                              RequiredOptionList);                     
-                       
+                       AppDataSize += DHCPCommon_SetOption(AppData->Options, DHCP_OPTION_REQ_LIST, sizeof(RequiredOptionList),
+                                                           RequiredOptionList);
+

                        /* Send the DHCP DISCOVER packet */
                        uip_udp_send(AppDataSize);
 
                        /* Reset the timeout timer, progress to next state */
                        timer_reset(&AppState->DHCPClient.Timeout);
                        /* Send the DHCP DISCOVER packet */
                        uip_udp_send(AppDataSize);
 
                        /* Reset the timeout timer, progress to next state */
                        timer_reset(&AppState->DHCPClient.Timeout);

-                       AppState->DHCPClient.CurrentState = DHCP_STATE_WaitForOffer;                    
-                       
+                       AppState->DHCPClient.CurrentState = DHCP_STATE_WaitForOffer;
+

                        break;
                case DHCP_STATE_WaitForOffer:
                        if (!(uip_newdata()))
                        break;
                case DHCP_STATE_WaitForOffer:
                        if (!(uip_newdata()))


@@ -97,21 +97,21 @@ void DHCPClientApp_Callback(void)
                                /* Check if the DHCP timeout period has expired while waiting for a response */
                                if (timer_expired(&AppState->DHCPClient.Timeout))
                                  AppState->DHCPClient.CurrentState = DHCP_STATE_SendDiscover;
                                /* Check if the DHCP timeout period has expired while waiting for a response */
                                if (timer_expired(&AppState->DHCPClient.Timeout))
                                  AppState->DHCPClient.CurrentState = DHCP_STATE_SendDiscover;

-                               
+

                                break;
                        }
                                break;
                        }

-                         
+

                        uint8_t OfferResponse_MessageType;
                        if ((AppData->TransactionID == DHCP_TRANSACTION_ID) &&
                        uint8_t OfferResponse_MessageType;
                        if ((AppData->TransactionID == DHCP_TRANSACTION_ID) &&

-                           DHCPClientApp_GetOption(AppData->Options, DHCP_OPTION_MSG_TYPE, &OfferResponse_MessageType) &&
+                           DHCPCommon_GetOption(AppData->Options, DHCP_OPTION_MSG_TYPE, &OfferResponse_MessageType) &&

                            (OfferResponse_MessageType == DHCP_OFFER))
                        {
                                /* Received a DHCP offer for an IP address, copy over values for later request */
                                memcpy(&AppState->DHCPClient.DHCPOffer_Data.AllocatedIP, &AppData->YourIP, sizeof(uip_ipaddr_t));
                            (OfferResponse_MessageType == DHCP_OFFER))
                        {
                                /* Received a DHCP offer for an IP address, copy over values for later request */
                                memcpy(&AppState->DHCPClient.DHCPOffer_Data.AllocatedIP, &AppData->YourIP, sizeof(uip_ipaddr_t));

-                               DHCPClientApp_GetOption(AppData->Options, DHCP_OPTION_SUBNET_MASK, &AppState->DHCPClient.DHCPOffer_Data.Netmask);
-                               DHCPClientApp_GetOption(AppData->Options, DHCP_OPTION_ROUTER,      &AppState->DHCPClient.DHCPOffer_Data.GatewayIP);
-                               DHCPClientApp_GetOption(AppData->Options, DHCP_OPTION_SERVER_ID,   &AppState->DHCPClient.DHCPOffer_Data.ServerIP);
-                               
+                               DHCPCommon_GetOption(AppData->Options, DHCP_OPTION_SUBNET_MASK, &AppState->DHCPClient.DHCPOffer_Data.Netmask);
+                               DHCPCommon_GetOption(AppData->Options, DHCP_OPTION_ROUTER,      &AppState->DHCPClient.DHCPOffer_Data.GatewayIP);
+                               DHCPCommon_GetOption(AppData->Options, DHCP_OPTION_SERVER_ID,   &AppState->DHCPClient.DHCPOffer_Data.ServerIP);
+

                                timer_reset(&AppState->DHCPClient.Timeout);
                                AppState->DHCPClient.CurrentState = DHCP_STATE_SendRequest;
                        }
                                timer_reset(&AppState->DHCPClient.Timeout);
                                AppState->DHCPClient.CurrentState = DHCP_STATE_SendRequest;
                        }


@@ -122,16 +122,16 @@ void DHCPClientApp_Callback(void)
                        AppDataSize += DHCPClientApp_FillDHCPHeader(AppData, DHCP_REQUEST, AppState);
 
                        /* Add the DHCP REQUESTED IP ADDRESS option to the packet */
                        AppDataSize += DHCPClientApp_FillDHCPHeader(AppData, DHCP_REQUEST, AppState);
 
                        /* Add the DHCP REQUESTED IP ADDRESS option to the packet */

-                       AppDataSize += DHCPClientApp_SetOption(AppData->Options, DHCP_OPTION_REQ_IPADDR, sizeof(uip_ipaddr_t),
-                                                              &AppState->DHCPClient.DHCPOffer_Data.AllocatedIP);
+                       AppDataSize += DHCPCommon_SetOption(AppData->Options, DHCP_OPTION_REQ_IPADDR, sizeof(uip_ipaddr_t),
+                                                           &AppState->DHCPClient.DHCPOffer_Data.AllocatedIP);

 
                        /* Add the DHCP SERVER IP ADDRESS option to the packet */
 
                        /* Add the DHCP SERVER IP ADDRESS option to the packet */

-                       AppDataSize += DHCPClientApp_SetOption(AppData->Options, DHCP_OPTION_SERVER_ID, sizeof(uip_ipaddr_t),
-                                                              &AppState->DHCPClient.DHCPOffer_Data.ServerIP);
+                       AppDataSize += DHCPCommon_SetOption(AppData->Options, DHCP_OPTION_SERVER_ID, sizeof(uip_ipaddr_t),
+                                                           &AppState->DHCPClient.DHCPOffer_Data.ServerIP);

 
                        /* Send the DHCP REQUEST packet */
                        uip_udp_send(AppDataSize);
 
                        /* Send the DHCP REQUEST packet */
                        uip_udp_send(AppDataSize);

-                       
+

                        /* Reset the timeout timer, progress to next state */
                        timer_reset(&AppState->DHCPClient.Timeout);
                        AppState->DHCPClient.CurrentState = DHCP_STATE_WaitForACK;
                        /* Reset the timeout timer, progress to next state */
                        timer_reset(&AppState->DHCPClient.Timeout);
                        AppState->DHCPClient.CurrentState = DHCP_STATE_WaitForACK;


@@ -143,26 +143,23 @@ void DHCPClientApp_Callback(void)
                                /* Check if the DHCP timeout period has expired while waiting for a response */
                                if (timer_expired(&AppState->DHCPClient.Timeout))
                                  AppState->DHCPClient.CurrentState = DHCP_STATE_SendDiscover;
                                /* Check if the DHCP timeout period has expired while waiting for a response */
                                if (timer_expired(&AppState->DHCPClient.Timeout))
                                  AppState->DHCPClient.CurrentState = DHCP_STATE_SendDiscover;

-                               
+

                                break;
                        }
                                break;
                        }

-                       
+

                        uint8_t RequestResponse_MessageType;
                        if ((AppData->TransactionID == DHCP_TRANSACTION_ID) &&
                        uint8_t RequestResponse_MessageType;
                        if ((AppData->TransactionID == DHCP_TRANSACTION_ID) &&

-                           DHCPClientApp_GetOption(AppData->Options, DHCP_OPTION_MSG_TYPE, &RequestResponse_MessageType) &&
+                           DHCPCommon_GetOption(AppData->Options, DHCP_OPTION_MSG_TYPE, &RequestResponse_MessageType) &&

                            (RequestResponse_MessageType == DHCP_ACK))
                        {
                                /* Set the new network parameters from the DHCP server */
                                uip_sethostaddr((uip_ipaddr_t*)&AppState->DHCPClient.DHCPOffer_Data.AllocatedIP);
                                uip_setnetmask((uip_ipaddr_t*)&AppState->DHCPClient.DHCPOffer_Data.Netmask);
                                uip_setdraddr((uip_ipaddr_t*)&AppState->DHCPClient.DHCPOffer_Data.GatewayIP);
                            (RequestResponse_MessageType == DHCP_ACK))
                        {
                                /* Set the new network parameters from the DHCP server */
                                uip_sethostaddr((uip_ipaddr_t*)&AppState->DHCPClient.DHCPOffer_Data.AllocatedIP);
                                uip_setnetmask((uip_ipaddr_t*)&AppState->DHCPClient.DHCPOffer_Data.Netmask);
                                uip_setdraddr((uip_ipaddr_t*)&AppState->DHCPClient.DHCPOffer_Data.GatewayIP);

-                       
-                               /* Indicate to the user that we now have a valid IP configuration */
-                               HaveIPConfiguration = true;

 
 

-                               AppState->DHCPClient.CurrentState = DHCP_STATE_AddressLeased;                           
+                               AppState->DHCPClient.CurrentState = DHCP_STATE_AddressLeased;

                        }
                        }

-                       
+

                        break;
        }
 }
                        break;
        }
 }


@@ -170,13 +167,15 @@ void DHCPClientApp_Callback(void)
 /** Fills the DHCP packet response with the appropriate BOOTP header for DHCP. This fills out all the required
  *  fields, leaving only the additional DHCP options to be added to the packet before it is sent to the DHCP server.
  *
 /** Fills the DHCP packet response with the appropriate BOOTP header for DHCP. This fills out all the required
  *  fields, leaving only the additional DHCP options to be added to the packet before it is sent to the DHCP server.
  *

- *  \param[out] DHCPHeader  Location in the packet buffer where the BOOTP header should be written to
+ *  \param[out] DHCPHeader       Location in the packet buffer where the BOOTP header should be written to

  *  \param[in]  DHCPMessageType  DHCP Message type, such as DHCP_DISCOVER
  *  \param[in]  DHCPMessageType  DHCP Message type, such as DHCP_DISCOVER

- *  \param[in]  AppState    Application state of the current UDP connection
+ *  \param[in]  AppState         Application state of the current UDP connection

  *
  *  \return Size in bytes of the created DHCP packet
  */
  *
  *  \return Size in bytes of the created DHCP packet
  */

-static uint16_t DHCPClientApp_FillDHCPHeader(DHCP_Header_t* const DHCPHeader, const uint8_t DHCPMessageType, uip_udp_appstate_t* AppState)
+static uint16_t DHCPClientApp_FillDHCPHeader(DHCP_Header_t* const DHCPHeader,
+                                             const uint8_t DHCPMessageType,
+                                             uip_udp_appstate_t* const AppState)

 {
        /* Erase existing packet data so that we start will all 0x00 DHCP header data */
        memset(DHCPHeader, 0, sizeof(DHCP_Header_t));
 {
        /* Erase existing packet data so that we start will all 0x00 DHCP header data */
        memset(DHCPHeader, 0, sizeof(DHCP_Header_t));


@@ -194,71 +193,16 @@ static uint16_t DHCPClientApp_FillDHCPHeader(DHCP_Header_t* const DHCPHeader, co
        memcpy(&DHCPHeader->NextServerIP, &AppState->DHCPClient.DHCPOffer_Data.ServerIP,    sizeof(uip_ipaddr_t));
        memcpy(&DHCPHeader->ClientHardwareAddress, &MACAddress, sizeof(struct uip_eth_addr));
        DHCPHeader->Cookie                = DHCP_MAGIC_COOKIE;
        memcpy(&DHCPHeader->NextServerIP, &AppState->DHCPClient.DHCPOffer_Data.ServerIP,    sizeof(uip_ipaddr_t));
        memcpy(&DHCPHeader->ClientHardwareAddress, &MACAddress, sizeof(struct uip_eth_addr));
        DHCPHeader->Cookie                = DHCP_MAGIC_COOKIE;

-       
+

        /* Add a DHCP message type and terminator options to the start of the DHCP options field */
        DHCPHeader->Options[0]            = DHCP_OPTION_MSG_TYPE;
        DHCPHeader->Options[1]            = 1;
        DHCPHeader->Options[2]            = DHCPMessageType;
        DHCPHeader->Options[3]            = DHCP_OPTION_END;
        /* Add a DHCP message type and terminator options to the start of the DHCP options field */
        DHCPHeader->Options[0]            = DHCP_OPTION_MSG_TYPE;
        DHCPHeader->Options[1]            = 1;
        DHCPHeader->Options[2]            = DHCPMessageType;
        DHCPHeader->Options[3]            = DHCP_OPTION_END;

-       
-       /* Calculate the total number of bytes added to the outgoing packet */
-       return (sizeof(DHCP_Header_t) + 4);
-}

 
 

-/** Sets the given DHCP option in the DHCP packet's option list. This automatically moves the
- *  end of options terminator past the new option in the options list.
- *
- *  \param[in,out] DHCPOptionList  Pointer to the start of the DHCP packet's options list
- *  \param[in]     Option          DHCP option to add to the list
- *  \param[in]     DataLen         Size in bytes of the option data to add
- *  \param[in]     OptionData      Buffer where the option's data is to be sourced from
- *
- *  \return Number of bytes added to the DHCP packet
- */
-static uint8_t DHCPClientApp_SetOption(uint8_t* DHCPOptionList, uint8_t Option, uint8_t DataLen, void* OptionData)
-{
-       /* Skip through the DHCP options list until the terminator option is found */
-       while (*DHCPOptionList != DHCP_OPTION_END)
-         DHCPOptionList += (DHCPOptionList[1] + 2);
-
-       /* Overwrite the existing terminator with the new option, add a new terminator at the end of the list */
-       DHCPOptionList[0] = Option;
-       DHCPOptionList[1] = DataLen;
-       memcpy(&DHCPOptionList[2], OptionData, DataLen);
-       DHCPOptionList[2 + DataLen] = DHCP_OPTION_END;
-       

        /* Calculate the total number of bytes added to the outgoing packet */
        /* Calculate the total number of bytes added to the outgoing packet */

-       return (2 + DataLen);
+       return (sizeof(DHCP_Header_t) + 4);

 }
 
 }
 

-/** Retrieves the given option's data (if present) from the DHCP packet's options list.
- *
- *  \param[in,out] DHCPOptionList  Pointer to the start of the DHCP packet's options list
- *  \param[in]     Option          DHCP option to retrieve to the list
- *  \param[out]    Destination     Buffer where the option's data is to be written to if found
- *
- *  \return Boolean true if the option was found in the DHCP packet's options list, false otherwise
- */
-static bool DHCPClientApp_GetOption(const uint8_t* DHCPOptionList, const uint8_t Option, void* const Destination)
-{
-       /* Look through the incoming DHCP packet's options list for the requested option */
-       while (*DHCPOptionList != DHCP_OPTION_END)
-       {
-               /* Check if the current DHCP option in the packet is the one requested */
-               if (DHCPOptionList[0] == Option)
-               {
-                       /* Copy request option's data to the destination buffer */
-                       memcpy(Destination, &DHCPOptionList[2], DHCPOptionList[1]);
-                       
-                       /* Indicate that the requested option data was successfully retrieved */
-                       return true;
-               }
-               
-               /* Skip to next DHCP option in the options list */
-               DHCPOptionList += (DHCPOptionList[1] + 2);
-       }
-       
-       /* Requested option not found in the incoming packet's DHCP options list */
-       return false;
-}

 #endif
 #endif

+