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-rw-r--r--lib/lufa/Projects/Webserver/Lib/DHCPClientApp.c208
1 files changed, 0 insertions, 208 deletions
diff --git a/lib/lufa/Projects/Webserver/Lib/DHCPClientApp.c b/lib/lufa/Projects/Webserver/Lib/DHCPClientApp.c
deleted file mode 100644
index 760718127..000000000
--- a/lib/lufa/Projects/Webserver/Lib/DHCPClientApp.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2017.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
- Permission to use, copy, modify, distribute, and sell this
- software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
- 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
- software without specific, written prior permission.
-
- 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
- whatsoever resulting from loss of use, data or profits, whether
- in an action of contract, negligence or other tortious action,
- arising out of or in connection with the use or performance of
- this software.
-*/
-
-/** \file
- *
- * DHCP Client Application. When connected to the uIP stack, this will retrieve IP configuration settings from the
- * DHCP server on the network.
- */
-
-#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 */
- 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;
- uip_udp_bind(Connection, HTONS(DHCP_CLIENT_PORT));
-
- /* Set the initial client state */
- AppState->DHCPClient.CurrentState = DHCP_STATE_SendDiscover;
-
- /* Set timeout period to half a second for a DHCP server to respond */
- 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
- * needs a UDP packet to be processed.
- */
-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;
-
- switch (AppState->DHCPClient.CurrentState)
- {
- case DHCP_STATE_SendDiscover:
- /* Clear all DHCP settings, reset client IP address */
- memset(&AppState->DHCPClient.DHCPOffer_Data, 0x00, sizeof(AppState->DHCPClient.DHCPOffer_Data));
- uip_sethostaddr((uip_ipaddr_t*)&AppState->DHCPClient.DHCPOffer_Data.AllocatedIP);
-
- /* 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};
- 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);
- AppState->DHCPClient.CurrentState = DHCP_STATE_WaitForOffer;
-
- break;
- case DHCP_STATE_WaitForOffer:
- if (!(uip_newdata()))
- {
- /* 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;
- }
-
- uint8_t OfferResponse_MessageType;
- if ((AppData->TransactionID == DHCP_TRANSACTION_ID) &&
- 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));
- 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;
- }
-
- break;
- case DHCP_STATE_SendRequest:
- /* Fill out the DHCP response header */
- AppDataSize += DHCPClientApp_FillDHCPHeader(AppData, DHCP_REQUEST, AppState);
-
- /* Add the DHCP REQUESTED IP ADDRESS option to the packet */
- 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 */
- 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);
-
- /* Reset the timeout timer, progress to next state */
- timer_reset(&AppState->DHCPClient.Timeout);
- AppState->DHCPClient.CurrentState = DHCP_STATE_WaitForACK;
-
- break;
- case DHCP_STATE_WaitForACK:
- if (!(uip_newdata()))
- {
- /* 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;
- }
-
- uint8_t RequestResponse_MessageType;
- if ((AppData->TransactionID == DHCP_TRANSACTION_ID) &&
- 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);
-
- AppState->DHCPClient.CurrentState = DHCP_STATE_AddressLeased;
- }
-
- break;
- }
-}
-
-/** 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[in] DHCPMessageType DHCP Message type, such as DHCP_DISCOVER
- * \param[in] AppState Application state of the current UDP connection
- *
- * \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* const AppState)
-{
- /* Erase existing packet data so that we start will all 0x00 DHCP header data */
- memset(DHCPHeader, 0, sizeof(DHCP_Header_t));
-
- /* Fill out the DHCP packet header */
- DHCPHeader->Operation = DHCP_OP_BOOTREQUEST;
- DHCPHeader->HardwareType = DHCP_HTYPE_ETHERNET;
- DHCPHeader->HardwareAddressLength = sizeof(MACAddress);
- DHCPHeader->Hops = 0;
- DHCPHeader->TransactionID = DHCP_TRANSACTION_ID;
- DHCPHeader->ElapsedSeconds = 0;
- DHCPHeader->Flags = HTONS(BOOTP_BROADCAST);
- memcpy(&DHCPHeader->ClientIP, &uip_hostaddr, sizeof(uip_ipaddr_t));
- memcpy(&DHCPHeader->YourIP, &AppState->DHCPClient.DHCPOffer_Data.AllocatedIP, sizeof(uip_ipaddr_t));
- 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;
-
- /* Calculate the total number of bytes added to the outgoing packet */
- return (sizeof(DHCP_Header_t) + 4);
-}
-
-#endif
-
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-26 00:48:36 +0000