Remove non-functional maintenance link check.

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

diff --git a/Projects/Webserver/Lib/DHCPServerApp.c b/Projects/Webserver/Lib/DHCPServerApp.c
index 43d539f..e2b72af 100644 (file)
--- a/Projects/Webserver/Lib/DHCPServerApp.c
+++ b/Projects/Webserver/Lib/DHCPServerApp.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2011.
+     Copyright (C) Dean Camera, 2012.

 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*

-  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2012  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
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted


@@ -42,20 +42,20 @@
 struct uip_conn* BroadcastConnection;
 
 uint8_t LeasedIPs[255 / 8];
 struct uip_conn* BroadcastConnection;
 
 uint8_t LeasedIPs[255 / 8];

-       
+

 /** Initialization function for the DHCP server. */
 void DHCPServerApp_Init(void)
 {
        /* Listen on port 67 for DHCP server connections from hosts */
        uip_listen(HTONS(DHCP_SERVER_PORT));
 /** Initialization function for the DHCP server. */
 void DHCPServerApp_Init(void)
 {
        /* Listen on port 67 for DHCP server connections from hosts */
        uip_listen(HTONS(DHCP_SERVER_PORT));

-       
+

        /* Create a new UDP connection to the DHCP server port for the DHCP solicitation */
        struct uip_udp_conn* BroadcastConnection = uip_udp_new(&uip_broadcast_addr, HTONS(DHCP_CLIENT_PORT));
 
        /* If the connection was successfully created, bind it to the local DHCP client port */
        if (BroadcastConnection != NULL)
          uip_udp_bind(BroadcastConnection, HTONS(DHCP_SERVER_PORT));
        /* Create a new UDP connection to the DHCP server port for the DHCP solicitation */
        struct uip_udp_conn* BroadcastConnection = uip_udp_new(&uip_broadcast_addr, HTONS(DHCP_CLIENT_PORT));
 
        /* If the connection was successfully created, bind it to the local DHCP client port */
        if (BroadcastConnection != NULL)
          uip_udp_bind(BroadcastConnection, HTONS(DHCP_SERVER_PORT));

-         
+

        /* Set all IP addresses as unleased */
        memset(LeasedIPs, 0x00, sizeof(LeasedIPs));
 }
        /* Set all IP addresses as unleased */
        memset(LeasedIPs, 0x00, sizeof(LeasedIPs));
 }


@@ -88,8 +88,8 @@ void DHCPServerApp_Callback(void)
 
                /* Try to extract out the client's preferred IP address if it is indicated in the packet */
                if (!(DHCPCommon_GetOption(AppData->Options, DHCP_OPTION_REQ_IPADDR, &PreferredClientIP)))
 
                /* Try to extract out the client's preferred IP address if it is indicated in the packet */
                if (!(DHCPCommon_GetOption(AppData->Options, DHCP_OPTION_REQ_IPADDR, &PreferredClientIP)))

-                 memcpy(&PreferredClientIP, &uip_all_zeroes_addr, sizeof(uip_ipaddr_t));       
-               
+                 memcpy(&PreferredClientIP, &uip_all_zeroes_addr, sizeof(uip_ipaddr_t));
+

                switch (DHCPMessageType)
                {
                        case DHCP_DISCOVER:
                switch (DHCPMessageType)
                {
                        case DHCP_DISCOVER:


@@ -116,7 +116,7 @@ void DHCPServerApp_Callback(void)
                                /* Check to see if the requested IP address has already been leased to a client */
                                if (!(DHCPServerApp_CheckIfIPLeased(&PreferredClientIP)))
                                {
                                /* Check to see if the requested IP address has already been leased to a client */
                                if (!(DHCPServerApp_CheckIfIPLeased(&PreferredClientIP)))
                                {

-                                       /* Create a new DHCP ACK packet to accept the IP address lease */                                       
+                                       /* Create a new DHCP ACK packet to accept the IP address lease */

                                        AppDataSize += DHCPServerApp_FillDHCPHeader(AppData, DHCP_ACK, &RemoteMACAddress, &PreferredClientIP, TransactionID);
 
                                        /* Add network mask and router information to the list of DHCP ACK packet options */
                                        AppDataSize += DHCPServerApp_FillDHCPHeader(AppData, DHCP_ACK, &RemoteMACAddress, &PreferredClientIP, TransactionID);
 
                                        /* Add network mask and router information to the list of DHCP ACK packet options */


@@ -133,12 +133,12 @@ void DHCPServerApp_Callback(void)
                                        /* Create a new DHCP NAK packet to reject the requested allocation */
                                        AppDataSize += DHCPServerApp_FillDHCPHeader(AppData, DHCP_NAK, &RemoteMACAddress, &uip_all_zeroes_addr, TransactionID);
                                }
                                        /* Create a new DHCP NAK packet to reject the requested allocation */
                                        AppDataSize += DHCPServerApp_FillDHCPHeader(AppData, DHCP_NAK, &RemoteMACAddress, &uip_all_zeroes_addr, TransactionID);
                                }

-                               
+

                                /* Send the DHCP ACK or NAK packet */
                                uip_poll_conn(BroadcastConnection);
                                memcpy(&uip_udp_conn->ripaddr, &uip_broadcast_addr, sizeof(uip_ipaddr_t));
                                uip_udp_send(AppDataSize);
                                /* Send the DHCP ACK or NAK packet */
                                uip_poll_conn(BroadcastConnection);
                                memcpy(&uip_udp_conn->ripaddr, &uip_broadcast_addr, sizeof(uip_ipaddr_t));
                                uip_udp_send(AppDataSize);

-                       
+

                                break;
                        case DHCP_RELEASE:
                                /* Mark the IP address as released in the allocation table */
                                break;
                        case DHCP_RELEASE:
                                /* Mark the IP address as released in the allocation table */


@@ -179,7 +179,7 @@ static uint16_t DHCPServerApp_FillDHCPHeader(DHCP_Header_t* const DHCPHeader,
        memcpy(&DHCPHeader->YourIP, PreferredClientIP, sizeof(uip_ipaddr_t));
        memcpy(&DHCPHeader->ClientHardwareAddress, ClientHardwareAddress, sizeof(struct uip_eth_addr));
        DHCPHeader->Cookie                = DHCP_MAGIC_COOKIE;
        memcpy(&DHCPHeader->YourIP, PreferredClientIP, sizeof(uip_ipaddr_t));
        memcpy(&DHCPHeader->ClientHardwareAddress, ClientHardwareAddress, 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;
        /* 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;


@@ -202,7 +202,7 @@ static bool DHCPServerApp_CheckIfIPLeased(const uip_ipaddr_t* const IPAddress)
 {
        uint8_t Byte = (IPAddress->u8[3] / 8);
        uint8_t Mask = (1 << (IPAddress->u8[3] % 8));
 {
        uint8_t Byte = (IPAddress->u8[3] / 8);
        uint8_t Mask = (1 << (IPAddress->u8[3] % 8));

-       
+

        /* Make sure that the requested IP address isn't already leased to the virtual server or another client */
        if (IPAddress->u8[3] && !(IPAddress->u8[3] == uip_hostaddr.u8[3]) && !(LeasedIPs[Byte] & Mask))
          return false;
        /* Make sure that the requested IP address isn't already leased to the virtual server or another client */
        if (IPAddress->u8[3] && !(IPAddress->u8[3] == uip_hostaddr.u8[3]) && !(LeasedIPs[Byte] & Mask))
          return false;


@@ -217,13 +217,13 @@ static bool DHCPServerApp_CheckIfIPLeased(const uip_ipaddr_t* const IPAddress)
 static void DHCPServerApp_GetUnleasedIP(uip_ipaddr_t* const NewIPAddress)
 {
        uip_ipaddr_copy(NewIPAddress, &uip_hostaddr);
 static void DHCPServerApp_GetUnleasedIP(uip_ipaddr_t* const NewIPAddress)
 {
        uip_ipaddr_copy(NewIPAddress, &uip_hostaddr);

-       
+

        /** Look through the current subnet, skipping the broadcast and zero IP addresses */
        for (uint8_t IP = 1; IP < 254; IP++)
        {
                /* Update new IP address to lease with the current IP address to test */
                NewIPAddress->u8[3] = IP;
        /** Look through the current subnet, skipping the broadcast and zero IP addresses */
        for (uint8_t IP = 1; IP < 254; IP++)
        {
                /* Update new IP address to lease with the current IP address to test */
                NewIPAddress->u8[3] = IP;

-               
+

                /* If we've found an unleased IP, abort with the updated IP stored for the called */
                if (!(DHCPServerApp_CheckIfIPLeased(NewIPAddress)))
                  return;
                /* If we've found an unleased IP, abort with the updated IP stored for the called */
                if (!(DHCPServerApp_CheckIfIPLeased(NewIPAddress)))
                  return;


@@ -241,7 +241,7 @@ static void DHCPServerApp_LeaseIP(const uip_ipaddr_t* const IPAddress)
 {
        uint8_t Byte = (IPAddress->u8[3] / 8);
        uint8_t Mask = (1 << (IPAddress->u8[3] % 8));
 {
        uint8_t Byte = (IPAddress->u8[3] / 8);
        uint8_t Mask = (1 << (IPAddress->u8[3] % 8));

-       
+

        /* Mark the IP address as leased in the allocation table */
        LeasedIPs[Byte] |= Mask;
 }
        /* Mark the IP address as leased in the allocation table */
        LeasedIPs[Byte] |= Mask;
 }


@@ -257,7 +257,7 @@ static void DHCPServerApp_UnleaseIP(const uip_ipaddr_t* const IPAddress)
 {
        uint8_t Byte = (IPAddress->u8[3] / 8);
        uint8_t Mask = (1 << (IPAddress->u8[3] % 8));
 {
        uint8_t Byte = (IPAddress->u8[3] / 8);
        uint8_t Mask = (1 << (IPAddress->u8[3] % 8));

-       
+

        /* Mark the IP address as unleased in the allocation table */
        LeasedIPs[Byte] &= ~Mask;
 }
        /* Mark the IP address as unleased in the allocation table */
        LeasedIPs[Byte] &= ~Mask;
 }