From f6d56675f9f981c5464f0ca7a1fbb0162154e8c5 Mon Sep 17 00:00:00 2001 From: tmk Date: Wed, 13 May 2015 11:13:10 +0900 Subject: Squashed 'tmk_core/' changes from caca2c0..dc0e46e dc0e46e Rename LUFA to LUFA-git 3bfa7fa Remove LUFA-120730 215b764 Merge commit 'afa0f22a9299686fd88f58ce09c5b521ac917e8f' as 'protocol/lufa/LUFA' afa0f22 Squashed 'protocol/lufa/LUFA/' content from commit def7fca c0c42fa Remove submodule of LUFA 30f897d Merge commit '87ced33feb74e79c3281dda36eb6d6d153399b41' as 'protocol/usb_hid/USB_Host_Shield_2.0' 87ced33 Squashed 'protocol/usb_hid/USB_Host_Shield_2.0/' content from commit aab4a69 14f6d49 Remove submodule of USB_Host_Shield_2.0 git-subtree-dir: tmk_core git-subtree-split: dc0e46eaa4367d4e218f8816e3c117895820f07c --- protocol/lufa/LUFA-git | 1 - .../Device/ClassDriver/RNDISEthernet/Lib/ARP.c | 87 +++ .../Device/ClassDriver/RNDISEthernet/Lib/ARP.h | 76 +++ .../Device/ClassDriver/RNDISEthernet/Lib/DHCP.c | 121 ++++ .../Device/ClassDriver/RNDISEthernet/Lib/DHCP.h | 128 +++++ .../ClassDriver/RNDISEthernet/Lib/Ethernet.c | 132 +++++ .../ClassDriver/RNDISEthernet/Lib/Ethernet.h | 101 ++++ .../RNDISEthernet/Lib/EthernetProtocols.h | 92 +++ .../Device/ClassDriver/RNDISEthernet/Lib/ICMP.c | 83 +++ .../Device/ClassDriver/RNDISEthernet/Lib/ICMP.h | 83 +++ .../Device/ClassDriver/RNDISEthernet/Lib/IP.c | 116 ++++ .../Device/ClassDriver/RNDISEthernet/Lib/IP.h | 93 +++ .../RNDISEthernet/Lib/ProtocolDecoders.c | 277 +++++++++ .../RNDISEthernet/Lib/ProtocolDecoders.h | 60 ++ .../Device/ClassDriver/RNDISEthernet/Lib/TCP.c | 632 +++++++++++++++++++++ .../Device/ClassDriver/RNDISEthernet/Lib/TCP.h | 260 +++++++++ .../Device/ClassDriver/RNDISEthernet/Lib/UDP.c | 84 +++ .../Device/ClassDriver/RNDISEthernet/Lib/UDP.h | 70 +++ .../ClassDriver/RNDISEthernet/Lib/Webserver.c | 203 +++++++ .../ClassDriver/RNDISEthernet/Lib/Webserver.h | 57 ++ 20 files changed, 2755 insertions(+), 1 deletion(-) delete mode 160000 protocol/lufa/LUFA-git create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.c create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.h create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/DHCP.c create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/DHCP.h create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.c create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.h create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/EthernetProtocols.h create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ICMP.c create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ICMP.h create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.c create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.h create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ProtocolDecoders.c create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ProtocolDecoders.h create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.c create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.h create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/UDP.c create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/UDP.h create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.c create mode 100644 protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.h (limited to 'protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib') diff --git a/protocol/lufa/LUFA-git b/protocol/lufa/LUFA-git deleted file mode 160000 index b6c18b2a7c..0000000000 --- a/protocol/lufa/LUFA-git +++ /dev/null @@ -1 +0,0 @@ -Subproject commit b6c18b2a7c544653efbe12a1d4e8ba65e7d83c35 diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.c new file mode 100644 index 0000000000..6aaf0edd46 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.c @@ -0,0 +1,87 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Address Resolution Protocol (ARP) packet handling routines. This protocol handles the + * conversion of physical MAC addresses to protocol IP addresses between the host and the + * device. + */ + +#include "ARP.h" + +/** Processes an ARP packet inside an Ethernet frame, and writes the appropriate response + * to the output Ethernet frame if the host is requesting the IP or MAC address of the + * virtual server device on the network. + * + * \param[in] InDataStart Pointer to the start of the incoming packet's ARP header + * \param[out] OutDataStart Pointer to the start of the outgoing packet's ARP header + * + * \return The number of bytes written to the out Ethernet frame if any, NO_RESPONSE otherwise + */ +int16_t ARP_ProcessARPPacket(void* InDataStart, + void* OutDataStart) +{ + DecodeARPHeader(InDataStart); + + ARP_Header_t* ARPHeaderIN = (ARP_Header_t*)InDataStart; + ARP_Header_t* ARPHeaderOUT = (ARP_Header_t*)OutDataStart; + + /* Ensure that the ARP request is a IPv4 request packet */ + if ((SwapEndian_16(ARPHeaderIN->ProtocolType) == ETHERTYPE_IPV4) && + (SwapEndian_16(ARPHeaderIN->Operation) == ARP_OPERATION_REQUEST)) + { + /* If the ARP packet is requesting the MAC or IP of the virtual webserver, return the response */ + if (IP_COMPARE(&ARPHeaderIN->TPA, &ServerIPAddress) || + MAC_COMPARE(&ARPHeaderIN->THA, &ServerMACAddress)) + { + /* Fill out the ARP response header */ + ARPHeaderOUT->HardwareType = ARPHeaderIN->HardwareType; + ARPHeaderOUT->ProtocolType = ARPHeaderIN->ProtocolType; + ARPHeaderOUT->HLEN = ARPHeaderIN->HLEN; + ARPHeaderOUT->PLEN = ARPHeaderIN->PLEN; + ARPHeaderOUT->Operation = SwapEndian_16(ARP_OPERATION_REPLY); + + /* Copy over the sender MAC/IP to the target fields for the response */ + ARPHeaderOUT->THA = ARPHeaderIN->SHA; + ARPHeaderOUT->TPA = ARPHeaderIN->SPA; + + /* Copy over the new sender MAC/IP - MAC and IP addresses of the virtual webserver */ + ARPHeaderOUT->SHA = ServerMACAddress; + ARPHeaderOUT->SPA = ServerIPAddress; + + /* Return the size of the response so far */ + return sizeof(ARP_Header_t); + } + } + + return NO_RESPONSE; +} + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.h new file mode 100644 index 0000000000..8535b85454 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ARP.h @@ -0,0 +1,76 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Header file for ARP.c. + */ + +#ifndef _ARP_H_ +#define _ARP_H_ + + /* Includes: */ + #include + #include + + #include "EthernetProtocols.h" + #include "Ethernet.h" + #include "ProtocolDecoders.h" + + /* Macros: */ + /** ARP header operation constant, indicating a request from a host for an address translation. */ + #define ARP_OPERATION_REQUEST 1 + + /** ARP header operation constant, indicating a reply from a host giving an address translation. */ + #define ARP_OPERATION_REPLY 2 + + /* Type Defines: */ + /** Type define for an ARP packet inside an Ethernet frame. */ + typedef struct + { + uint16_t HardwareType; /**< Hardware type constant, indicating the hardware used */ + uint16_t ProtocolType; /**< Protocol being resolved, usually ETHERTYPE_IPV4 */ + + uint8_t HLEN; /**< Length in bytes of the source/destination hardware addresses */ + uint8_t PLEN; /**< Length in bytes of the source/destination protocol addresses */ + uint16_t Operation; /**< Type of operation, either ARP_OPERATION_REQUEST or ARP_OPERATION_REPLY */ + + MAC_Address_t SHA; /**< Sender's hardware address */ + IP_Address_t SPA; /**< Sender's protocol address */ + MAC_Address_t THA; /**< Target's hardware address */ + IP_Address_t TPA; /**< Target's protocol address */ + } ARP_Header_t; + + /* Function Prototypes: */ + int16_t ARP_ProcessARPPacket(void* InDataStart, + void* OutDataStart); + +#endif + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/DHCP.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/DHCP.c new file mode 100644 index 0000000000..b3b5d6943b --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/DHCP.c @@ -0,0 +1,121 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Dynamic Host Configuration Protocol (DHCP) packet handling routines. This protocol + * handles the automatic IP negotiation to the host, so that the host will use the provided + * IP address given to it by the device. + */ + +#include "DHCP.h" + +/** Processes a DHCP packet inside an Ethernet frame, and writes the appropriate response + * to the output Ethernet frame if the host is requesting or accepting an IP address. + * + * \param[in] IPHeaderInStart Pointer to the start of the incoming packet's IP header + * \param[in] DHCPHeaderInStart Pointer to the start of the incoming packet's DHCP header + * \param[out] DHCPHeaderOutStart Pointer to the start of the outgoing packet's DHCP header + * + * \return The number of bytes written to the out Ethernet frame if any, NO_RESPONSE otherwise + */ +int16_t DHCP_ProcessDHCPPacket(void* IPHeaderInStart, + void* DHCPHeaderInStart, + void* DHCPHeaderOutStart) +{ + IP_Header_t* IPHeaderIN = (IP_Header_t*)IPHeaderInStart; + DHCP_Header_t* DHCPHeaderIN = (DHCP_Header_t*)DHCPHeaderInStart; + DHCP_Header_t* DHCPHeaderOUT = (DHCP_Header_t*)DHCPHeaderOutStart; + + uint8_t* DHCPOptionsINStart = ((uint8_t*)DHCPHeaderInStart + sizeof(DHCP_Header_t)); + uint8_t* DHCPOptionsOUTStart = ((uint8_t*)DHCPHeaderOutStart + sizeof(DHCP_Header_t)); + + DecodeDHCPHeader(DHCPHeaderInStart); + + /* Zero out the response DHCP packet, as much of it is legacy and left at 0 */ + memset(DHCPHeaderOUT, 0, sizeof(DHCP_Header_t)); + + /* Fill out the response DHCP packet */ + DHCPHeaderOUT->HardwareType = DHCPHeaderIN->HardwareType; + DHCPHeaderOUT->Operation = DHCP_OP_BOOTREPLY; + DHCPHeaderOUT->HardwareAddressLength = DHCPHeaderIN->HardwareAddressLength; + DHCPHeaderOUT->Hops = 0; + DHCPHeaderOUT->TransactionID = DHCPHeaderIN->TransactionID; + DHCPHeaderOUT->ElapsedSeconds = 0; + DHCPHeaderOUT->Flags = DHCPHeaderIN->Flags; + DHCPHeaderOUT->YourIP = ClientIPAddress; + memmove(&DHCPHeaderOUT->ClientHardwareAddress, &DHCPHeaderIN->ClientHardwareAddress, sizeof(MAC_Address_t)); + DHCPHeaderOUT->Cookie = SwapEndian_32(DHCP_MAGIC_COOKIE); + + /* Alter the incoming IP packet header so that the corrected IP source and destinations are used - this means that + when the response IP header is generated, it will use the corrected addresses and not the null/broatcast addresses */ + IPHeaderIN->SourceAddress = ClientIPAddress; + IPHeaderIN->DestinationAddress = ServerIPAddress; + + /* Process the incoming DHCP packet options */ + while (DHCPOptionsINStart[0] != DHCP_OPTION_END) + { + /* Find the Message Type DHCP option, to determine the type of DHCP packet */ + if (DHCPOptionsINStart[0] == DHCP_OPTION_MESSAGETYPE) + { + if ((DHCPOptionsINStart[2] == DHCP_MESSAGETYPE_DISCOVER) || (DHCPOptionsINStart[2] == DHCP_MESSAGETYPE_REQUEST)) + { + /* Fill out the response DHCP packet options for a DHCP OFFER or ACK response */ + + *(DHCPOptionsOUTStart++) = DHCP_OPTION_MESSAGETYPE; + *(DHCPOptionsOUTStart++) = 1; + *(DHCPOptionsOUTStart++) = (DHCPOptionsINStart[2] == DHCP_MESSAGETYPE_DISCOVER) ? DHCP_MESSAGETYPE_OFFER + : DHCP_MESSAGETYPE_ACK; + + *(DHCPOptionsOUTStart++) = DHCP_OPTION_SUBNETMASK; + *(DHCPOptionsOUTStart++) = 4; + *(DHCPOptionsOUTStart++) = 0xFF; + *(DHCPOptionsOUTStart++) = 0xFF; + *(DHCPOptionsOUTStart++) = 0xFF; + *(DHCPOptionsOUTStart++) = 0x00; + + *(DHCPOptionsOUTStart++) = DHCP_OPTION_DHCPSERVER; + *(DHCPOptionsOUTStart++) = sizeof(IP_Address_t); + memcpy(DHCPOptionsOUTStart, &ServerIPAddress, sizeof(IP_Address_t)); + DHCPOptionsOUTStart += sizeof(IP_Address_t); + + *(DHCPOptionsOUTStart++) = DHCP_OPTION_END; + + return (sizeof(DHCP_Header_t) + 12 + sizeof(IP_Address_t)); + } + } + + /* Go to the next DHCP option - skip one byte if option is a padding byte, else skip the complete option's size */ + DHCPOptionsINStart += ((DHCPOptionsINStart[0] == DHCP_OPTION_PAD) ? 1 : (DHCPOptionsINStart[1] + 2)); + } + + return NO_RESPONSE; +} + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/DHCP.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/DHCP.h new file mode 100644 index 0000000000..2d57397de9 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/DHCP.h @@ -0,0 +1,128 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Header file for DHCP.c. + */ + +#ifndef _DHCP_H_ +#define _DHCP_H_ + + /* Includes: */ + #include + #include + + #include "EthernetProtocols.h" + #include "Ethernet.h" + #include "ProtocolDecoders.h" + + /* Macros: */ + /** DHCP operation constant, indicating a request from a host to a DHCP server. */ + #define DHCP_OP_BOOTREQUEST 0x01 + + /** DHCP operation constant, indicating a reply from a DHCP server to a host. */ + #define DHCP_OP_BOOTREPLY 0x02 + + /** Hardware type constant, indicating Ethernet as a carrier. */ + #define DHCP_HTYPE_ETHERNET 0x01 + + /** Magic boot protocol "cookie", inserted into all BOOTP packets (BOOTP is the carrier of DHCP). */ + #define DHCP_MAGIC_COOKIE 0x63825363 + + /** DHCP option list entry header, indicating that a subnet mask will follow. */ + #define DHCP_OPTION_SUBNETMASK 1 + + /** DHCP option list entry header, indicating that the DHCP message type constant will follow. */ + #define DHCP_OPTION_MESSAGETYPE 53 + + /** DHCP option list entry header, indicating that the IP address of the DHCP server will follow. */ + #define DHCP_OPTION_DHCPSERVER 54 + + /** DHCP option list entry header, used to pad out option data. */ + #define DHCP_OPTION_PAD 0 + + /** DHCP option list entry header, indicating the end of option data. */ + #define DHCP_OPTION_END 255 + + /** Message type constant, used in the DHCP option data field, requesting that a DHCP server offer an IP address. */ + #define DHCP_MESSAGETYPE_DISCOVER 1 + + /** Message type constant, used in the DHCP option data field, indicating that a DHCP server is offering an IP address. */ + #define DHCP_MESSAGETYPE_OFFER 2 + + /** Message type constant, used in the DHCP option data field, requesting that a DHCP server lease a given IP address. */ + #define DHCP_MESSAGETYPE_REQUEST 3 + + /** Message type constant, used in the DHCP option data field, declining an offered DHCP server IP address lease. */ + #define DHCP_MESSAGETYPE_DECLINE 4 + + /** Message type constant, used in the DHCP option data field, ACKing a host IP lease request. */ + #define DHCP_MESSAGETYPE_ACK 5 + + /** Message type constant, used in the DHCP option data field, NACKing a host IP lease request. */ + #define DHCP_MESSAGETYPE_NACK 6 + + /** Message type constant, used in the DHCP option data field, indicating that a host is releasing a leased IP address. */ + #define DHCP_MESSAGETYPE_RELEASE 7 + + /* Type Defines: */ + /** Type define for a DHCP packet inside an Ethernet frame. */ + typedef struct + { + uint8_t Operation; /**< DHCP operation, either DHCP_OP_BOOTREQUEST or DHCP_OP_BOOTREPLY */ + uint8_t HardwareType; /**< Hardware carrier type constant */ + uint8_t HardwareAddressLength; /**< Length in bytes of a hardware (MAC) address on the network */ + uint8_t Hops; /**< Number of hops required to reach the server, unused */ + + uint32_t TransactionID; /**< Unique ID of the DHCP packet, for positive matching between sent and received packets */ + + uint16_t ElapsedSeconds; /**< Elapsed seconds since the request was made */ + uint16_t Flags; /**< BOOTP packet flags */ + + IP_Address_t ClientIP; /**< Client IP address, if already leased an IP */ + IP_Address_t YourIP; /**< Client IP address */ + IP_Address_t NextServerIP; /**< Legacy BOOTP protocol field, unused for DHCP */ + IP_Address_t RelayAgentIP; /**< Legacy BOOTP protocol field, unused for DHCP */ + + uint8_t ClientHardwareAddress[16]; /**< Hardware (MAC) address of the client making a request to the DHCP server */ + uint8_t ServerHostnameString[64]; /**< Legacy BOOTP protocol field, unused for DHCP */ + uint8_t BootFileName[128]; /**< Legacy BOOTP protocol field, unused for DHCP */ + + uint32_t Cookie; /**< Magic BOOTP protocol cookie to indicate a valid packet */ + } DHCP_Header_t; + + /* Function Prototypes: */ + int16_t DHCP_ProcessDHCPPacket(void* IPHeaderInStart, + void* DHCPHeaderInStart, + void* DHCPHeaderOutStart); + +#endif + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.c new file mode 100644 index 0000000000..6760395374 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.c @@ -0,0 +1,132 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Ethernet frame packet handling routines. This protocol handles the processing of raw Ethernet + * frames sent and received, deferring the processing of sub-packet protocols to the appropriate + * protocol handlers, such as DHCP or ARP. + */ + +#include "Ethernet.h" + +/** Constant for convenience when checking against or setting a MAC address to the virtual server MAC address. */ +const MAC_Address_t ServerMACAddress = {SERVER_MAC_ADDRESS}; + +/** Constant for convenience when checking against or setting an IP address to the virtual server IP address. */ +const IP_Address_t ServerIPAddress = {SERVER_IP_ADDRESS}; + +/** Constant for convenience when checking against or setting a MAC address to the broadcast MAC address. */ +const MAC_Address_t BroadcastMACAddress = {BROADCAST_MAC_ADDRESS}; + +/** Constant for convenience when checking against or setting a IP address to the broadcast IP address. */ +const IP_Address_t BroadcastIPAddress = {BROADCAST_IP_ADDRESS}; + +/** Constant for convenience when checking against or setting an IP address to the client (host) IP address. */ +const IP_Address_t ClientIPAddress = {CLIENT_IP_ADDRESS}; + + +/** Processes an incoming Ethernet frame, and writes the appropriate response to the output Ethernet + * frame buffer if the sub protocol handlers create a valid response. + */ +void Ethernet_ProcessPacket(Ethernet_Frame_Info_t* const FrameIN, + Ethernet_Frame_Info_t* const FrameOUT) +{ + DecodeEthernetFrameHeader(FrameIN->FrameData); + + /* Cast the incoming Ethernet frame to the Ethernet header type */ + Ethernet_Frame_Header_t* FrameINHeader = (Ethernet_Frame_Header_t*)&FrameIN->FrameData; + Ethernet_Frame_Header_t* FrameOUTHeader = (Ethernet_Frame_Header_t*)&FrameOUT->FrameData; + + int16_t RetSize = NO_RESPONSE; + + /* Ensure frame is addressed to either all (broadcast) or the virtual webserver, and is a type II frame */ + if ((MAC_COMPARE(&FrameINHeader->Destination, &ServerMACAddress) || + MAC_COMPARE(&FrameINHeader->Destination, &BroadcastMACAddress)) && + (SwapEndian_16(FrameIN->FrameLength) > ETHERNET_VER2_MINSIZE)) + { + /* Process the packet depending on its protocol */ + switch (SwapEndian_16(FrameINHeader->EtherType)) + { + case ETHERTYPE_ARP: + RetSize = ARP_ProcessARPPacket(&FrameIN->FrameData[sizeof(Ethernet_Frame_Header_t)], + &FrameOUT->FrameData[sizeof(Ethernet_Frame_Header_t)]); + break; + case ETHERTYPE_IPV4: + RetSize = IP_ProcessIPPacket(FrameIN, + &FrameIN->FrameData[sizeof(Ethernet_Frame_Header_t)], + &FrameOUT->FrameData[sizeof(Ethernet_Frame_Header_t)]); + break; + } + + /* Protocol processing routine has filled a response, complete the ethernet frame header */ + if (RetSize > 0) + { + /* Fill out the response Ethernet frame header */ + FrameOUTHeader->Source = ServerMACAddress; + FrameOUTHeader->Destination = FrameINHeader->Source; + FrameOUTHeader->EtherType = FrameINHeader->EtherType; + + /* Set the response length in the buffer and indicate that a response is ready to be sent */ + FrameOUT->FrameLength = (sizeof(Ethernet_Frame_Header_t) + RetSize); + } + } + + /* Check if the packet was processed */ + if (RetSize != NO_PROCESS) + { + /* Clear the frame buffer */ + FrameIN->FrameLength = 0; + } +} + +/** Calculates the appropriate ethernet checksum, consisting of the addition of the one's + * compliment of each word, complimented. + * + * \param[in] Data Pointer to the packet buffer data whose checksum must be calculated + * \param[in] Bytes Number of bytes in the data buffer to process + * + * \return A 16-bit Ethernet checksum value + */ +uint16_t Ethernet_Checksum16(void* Data, + uint16_t Bytes) +{ + uint16_t* Words = (uint16_t*)Data; + uint32_t Checksum = 0; + + for (uint16_t CurrWord = 0; CurrWord < (Bytes >> 1); CurrWord++) + Checksum += Words[CurrWord]; + + while (Checksum & 0xFFFF0000) + Checksum = ((Checksum & 0xFFFF) + (Checksum >> 16)); + + return ~Checksum; +} + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.h new file mode 100644 index 0000000000..6de4a90cb7 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.h @@ -0,0 +1,101 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Header file for Ethernet.c. + */ + +#ifndef _ETHERNET_H_ +#define _ETHERNET_H_ + + /* Includes: */ + #include + #include + + #include + + #include "Config/AppConfig.h" + + #include "EthernetProtocols.h" + #include "ProtocolDecoders.h" + #include "ICMP.h" + #include "TCP.h" + #include "UDP.h" + #include "DHCP.h" + #include "ARP.h" + #include "IP.h" + + /* Macros: */ + /** Physical MAC address of the network broadcast address. */ + #define BROADCAST_MAC_ADDRESS {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF} + + /** Performs a comparison between two MAC addresses, indicating if they are identical. + * + * \param[in] MAC1 First MAC address + * \param[in] MAC2 Second MAC address + * + * \return True if the addresses match, \c false otherwise + */ + #define MAC_COMPARE(MAC1, MAC2) (memcmp(MAC1, MAC2, sizeof(MAC_Address_t)) == 0) + + /** Minimum size of an Ethernet packet in bytes, to conform to the Ethernet V2 packet standard. */ + #define ETHERNET_VER2_MINSIZE 0x0600 + + /** Return value for all sub protocol handling routines, indicating that no response packet has been generated. */ + #define NO_RESPONSE 0 + + /** Return value for all sub protocol handling routines, indicating that the packet has not yet been handled. */ + #define NO_PROCESS -1 + + /* Type Defines: */ + /** Type define for an Ethernet frame header. */ + typedef struct + { + MAC_Address_t Destination; /**< Physical MAC address of the packet recipient */ + MAC_Address_t Source; /**< Physics MAC address of the packet source */ + uint16_t EtherType; /**< Ethernet packet sub-protocol type, for Ethernet V2 packets */ + } Ethernet_Frame_Header_t; + + /* External Variables: */ + extern const MAC_Address_t ServerMACAddress; + extern const IP_Address_t ServerIPAddress; + extern const MAC_Address_t BroadcastMACAddress; + extern const IP_Address_t BroadcastIPAddress; + extern const IP_Address_t ClientIPAddress; + + /* Function Prototypes: */ + void Ethernet_ProcessPacket(Ethernet_Frame_Info_t* const FrameIN, + Ethernet_Frame_Info_t* const FrameOUT); + uint16_t Ethernet_Checksum16(void* Data, + uint16_t Bytes); + +#endif + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/EthernetProtocols.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/EthernetProtocols.h new file mode 100644 index 0000000000..9db58d5de7 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/EthernetProtocols.h @@ -0,0 +1,92 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * General Ethernet protocol constants and type defines, for use by + * all network protocol portions of the TCP/IP stack. + */ + +#ifndef _ETHERNET_PROTOCOLS_H_ +#define _ETHERNET_PROTOCOLS_H_ + + /* Includes: */ + #include + + /* Macros: */ + #define ETHERTYPE_IPV4 0x0800 + #define ETHERTYPE_ARP 0x0806 + #define ETHERTYPE_RARP 0x8035 + #define ETHERTYPE_APPLETALK 0x809b + #define ETHERTYPE_APPLETALKARP 0x80f3 + #define ETHERTYPE_IEEE8021Q 0x8100 + #define ETHERTYPE_NOVELLIPX 0x8137 + #define ETHERTYPE_NOVELL 0x8138 + #define ETHERTYPE_IPV6 0x86DD + #define ETHERTYPE_COBRANET 0x8819 + #define ETHERTYPE_PROVIDERBRIDGING 0x88a8 + #define ETHERTYPE_MPLSUNICAST 0x8847 + #define ETHERTYPE_MPLSMULTICAST 0x8848 + #define ETHERTYPE_PPPoEDISCOVERY 0x8863 + #define ETHERTYPE_PPPoESESSION 0x8864 + #define ETHERTYPE_EAPOVERLAN 0x888E + #define ETHERTYPE_HYPERSCSI 0x889A + #define ETHERTYPE_ATAOVERETHERNET 0x88A2 + #define ETHERTYPE_ETHERCAT 0x88A4 + #define ETHERTYPE_SERCOSIII 0x88CD + #define ETHERTYPE_CESoE 0x88D8 + #define ETHERTYPE_MACSECURITY 0x88E5 + #define ETHERTYPE_FIBRECHANNEL 0x8906 + #define ETHERTYPE_QINQ 0x9100 + #define ETHERTYPE_VLLT 0xCAFE + + #define PROTOCOL_ICMP 1 + #define PROTOCOL_IGMP 2 + #define PROTOCOL_TCP 6 + #define PROTOCOL_UDP 17 + #define PROTOCOL_OSPF 89 + #define PROTOCOL_SCTP 132 + + /* Type Defines: */ + /** Type define for an Ethernet frame buffer data and information structure. */ + typedef struct + { + uint8_t FrameData[ETHERNET_FRAME_SIZE_MAX]; /**< Ethernet frame contents. */ + uint16_t FrameLength; /**< Length in bytes of the Ethernet frame stored in the buffer. */ + } Ethernet_Frame_Info_t; + + /** Type define for a protocol IP address of a device on a network. */ + typedef struct + { + uint8_t Octets[4]; /**< Individual bytes of an IP address */ + } IP_Address_t; + +#endif + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ICMP.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ICMP.c new file mode 100644 index 0000000000..20a7b709dc --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ICMP.c @@ -0,0 +1,83 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Internet Control Message Protocol (ICMP) packet handling routines. This protocol handles + * Echo requests from the host, to indicate a successful network connection between the host + * and the virtual server. + */ + +#include "ICMP.h" + +/** Processes an ICMP packet inside an Ethernet frame, and writes the appropriate response + * to the output Ethernet frame if the host is issuing a ICMP ECHO request. + * + * \param[in] FrameIN Pointer to the incoming Ethernet frame information structure + * \param[in] InDataStart Pointer to the start of the incoming packet's ICMP header + * \param[out] OutDataStart Pointer to the start of the outgoing packet's ICMP header + * + * \return The number of bytes written to the out Ethernet frame if any, NO_RESPONSE otherwise + */ +int16_t ICMP_ProcessICMPPacket(Ethernet_Frame_Info_t* const FrameIN, + void* InDataStart, + void* OutDataStart) +{ + ICMP_Header_t* ICMPHeaderIN = (ICMP_Header_t*)InDataStart; + ICMP_Header_t* ICMPHeaderOUT = (ICMP_Header_t*)OutDataStart; + + DecodeICMPHeader(InDataStart); + + /* Determine if the ICMP packet is an echo request (ping) */ + if (ICMPHeaderIN->Type == ICMP_TYPE_ECHOREQUEST) + { + /* Fill out the ICMP response packet */ + ICMPHeaderOUT->Type = ICMP_TYPE_ECHOREPLY; + ICMPHeaderOUT->Code = 0; + ICMPHeaderOUT->Checksum = 0; + ICMPHeaderOUT->Id = ICMPHeaderIN->Id; + ICMPHeaderOUT->Sequence = ICMPHeaderIN->Sequence; + + intptr_t DataSize = FrameIN->FrameLength - ((((intptr_t)InDataStart + sizeof(ICMP_Header_t)) - (intptr_t)FrameIN->FrameData)); + + /* Copy the remaining payload to the response - echo requests should echo back any sent data */ + memmove(&((uint8_t*)OutDataStart)[sizeof(ICMP_Header_t)], + &((uint8_t*)InDataStart)[sizeof(ICMP_Header_t)], + DataSize); + + ICMPHeaderOUT->Checksum = Ethernet_Checksum16(ICMPHeaderOUT, (DataSize + sizeof(ICMP_Header_t))); + + /* Return the size of the response so far */ + return (DataSize + sizeof(ICMP_Header_t)); + } + + return NO_RESPONSE; +} + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ICMP.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ICMP.h new file mode 100644 index 0000000000..0226d35ca2 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ICMP.h @@ -0,0 +1,83 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Header file for ICMP.c. + */ + +#ifndef _ICMP_H_ +#define _ICMP_H_ + + /* Includes: */ + #include + #include + + #include "EthernetProtocols.h" + #include "Ethernet.h" + #include "ProtocolDecoders.h" + + /* Macros: */ + /** ICMP message type constant, indicating an ICMP ECHO Reply message. */ + #define ICMP_TYPE_ECHOREPLY 0 + + /** ICMP message type constant, indicating a packet destination is unreachable. */ + #define ICMP_TYPE_DESTINATIONUNREACHABLE 3 + + /** ICMP message type constant, indicating an ICMP Source Quench message. */ + #define ICMP_TYPE_SOURCEQUENCH 4 + + /** ICMP message type constant, indicating an ICMP Redirect message. */ + #define ICMP_TYPE_REDIRECTMESSAGE 5 + + /** ICMP message type constant, indicating an ICMP ECHO Request message. */ + #define ICMP_TYPE_ECHOREQUEST 8 + + /** ICMP message type constant, indicating an ICMP Time Exceeded message. */ + #define ICMP_TYPE_TIMEEXCEEDED 11 + + /* Type Defines: */ + /** Type define for an ICMP message header. */ + typedef struct + { + uint8_t Type; /**< ICMP message type, an \c ICMP_TYPE_* constant */ + uint8_t Code; /**< ICMP message code, indicating the message value */ + uint16_t Checksum; /**< Ethernet checksum of the ICMP message */ + uint16_t Id; /**< Id of the ICMP message */ + uint16_t Sequence; /**< Sequence number of the ICMP message, to link together message responses */ + } ICMP_Header_t; + + /* Function Prototypes: */ + int16_t ICMP_ProcessICMPPacket(Ethernet_Frame_Info_t* const FrameIN, + void* InDataStart, + void* OutDataStart); + +#endif + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.c new file mode 100644 index 0000000000..15013ce9dc --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.c @@ -0,0 +1,116 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Internet Protocol (IP) packet handling routines. This protocol handles IP packets from the + * host which typically encapsulate other protocols such as ICMP, UDP and TCP. + */ + +#include "IP.h" + +/** Processes an IP packet inside an Ethernet frame, and writes the appropriate response + * to the output Ethernet frame if one is created by a sub-protocol handler. + * + * \param[in] FrameIN Pointer to the incoming Ethernet frame information structure + * \param[in] InDataStart Pointer to the start of the incoming packet's IP header + * \param[out] OutDataStart Pointer to the start of the outgoing packet's IP header + * + * \return The number of bytes written to the out Ethernet frame if any, NO_RESPONSE if no + * response was generated, NO_PROCESS if the packet processing was deferred until the + * next Ethernet packet handler iteration + */ +int16_t IP_ProcessIPPacket(Ethernet_Frame_Info_t* const FrameIN, + void* InDataStart, + void* OutDataStart) +{ + DecodeIPHeader(InDataStart); + + IP_Header_t* IPHeaderIN = (IP_Header_t*)InDataStart; + IP_Header_t* IPHeaderOUT = (IP_Header_t*)OutDataStart; + + /* Header length is specified in number of longs in the packet header, convert to bytes */ + uint16_t HeaderLengthBytes = (IPHeaderIN->HeaderLength * sizeof(uint32_t)); + + int16_t RetSize = NO_RESPONSE; + + /* Check to ensure the IP packet is addressed to the virtual webserver's IP or the broadcast IP address */ + if (!(IP_COMPARE(&IPHeaderIN->DestinationAddress, &ServerIPAddress)) && + !(IP_COMPARE(&IPHeaderIN->DestinationAddress, &BroadcastIPAddress))) + { + return NO_RESPONSE; + } + + /* Pass off the IP payload to the appropriate protocol processing routine */ + switch (IPHeaderIN->Protocol) + { + case PROTOCOL_ICMP: + RetSize = ICMP_ProcessICMPPacket(FrameIN, + &((uint8_t*)InDataStart)[HeaderLengthBytes], + &((uint8_t*)OutDataStart)[sizeof(IP_Header_t)]); + break; + case PROTOCOL_TCP: + RetSize = TCP_ProcessTCPPacket(InDataStart, + &((uint8_t*)InDataStart)[HeaderLengthBytes], + &((uint8_t*)OutDataStart)[sizeof(IP_Header_t)]); + break; + case PROTOCOL_UDP: + RetSize = UDP_ProcessUDPPacket(InDataStart, + &((uint8_t*)InDataStart)[HeaderLengthBytes], + &((uint8_t*)OutDataStart)[sizeof(IP_Header_t)]); + break; + } + + /* Check to see if the protocol processing routine has filled out a response */ + if (RetSize > 0) + { + /* Fill out the response IP packet header */ + IPHeaderOUT->TotalLength = SwapEndian_16(sizeof(IP_Header_t) + RetSize); + IPHeaderOUT->TypeOfService = 0; + IPHeaderOUT->HeaderLength = (sizeof(IP_Header_t) / sizeof(uint32_t)); + IPHeaderOUT->Version = 4; + IPHeaderOUT->Flags = 0; + IPHeaderOUT->FragmentOffset = 0; + IPHeaderOUT->Identification = 0; + IPHeaderOUT->HeaderChecksum = 0; + IPHeaderOUT->Protocol = IPHeaderIN->Protocol; + IPHeaderOUT->TTL = DEFAULT_TTL; + IPHeaderOUT->SourceAddress = IPHeaderIN->DestinationAddress; + IPHeaderOUT->DestinationAddress = IPHeaderIN->SourceAddress; + + IPHeaderOUT->HeaderChecksum = Ethernet_Checksum16(IPHeaderOUT, sizeof(IP_Header_t)); + + /* Return the size of the response so far */ + return (sizeof(IP_Header_t) + RetSize); + } + + return RetSize; +} + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.h new file mode 100644 index 0000000000..645d7a9da5 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.h @@ -0,0 +1,93 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Header file for IP.c. + */ + +#ifndef _IP_H_ +#define _IP_H_ + + /* Includes: */ + #include + #include + + #include "EthernetProtocols.h" + #include "Ethernet.h" + #include "ProtocolDecoders.h" + #include "Config/AppConfig.h" + + /* Macros: */ + /** Protocol IP address of the broadcast address. */ + #define BROADCAST_IP_ADDRESS {0xFF, 0xFF, 0xFF, 0xFF} + + /** Default Time To Live (TTL) value for sent packets, indicating the maximum allowable hops until their destination + * is reached. + */ + #define DEFAULT_TTL 128 + + /** Performs a comparison between two IP addresses, indicating if they are identical. + * + * \param[in] IP1 First IP address + * \param[in] IP2 Second IP address + * + * \return True if the addresses match, \c false otherwise + */ + #define IP_COMPARE(IP1, IP2) (memcmp(IP1, IP2, sizeof(IP_Address_t)) == 0) + + /* Type Defines: */ + /** Type define of an IP packet header. */ + typedef struct + { + unsigned HeaderLength : 4; /**< Total length of the packet header, in 4-byte blocks */ + unsigned Version : 4; /**< IP protocol version */ + uint8_t TypeOfService; /**< Special service type identifier, indicating delay/throughput/reliability levels */ + uint16_t TotalLength; /**< Total length of the IP packet, in bytes */ + + uint16_t Identification; /**< Identification value for identifying fragmented packets */ + unsigned FragmentOffset : 13; /**< Offset of this IP fragment */ + unsigned Flags : 3; /**< Fragment flags, to indicate if a packet is fragmented */ + + uint8_t TTL; /**< Maximum allowable number of hops to reach the packet destination */ + uint8_t Protocol; /**< Encapsulated protocol type */ + uint16_t HeaderChecksum; /**< Ethernet checksum of the IP header */ + + IP_Address_t SourceAddress; /**< Source protocol IP address of the packet */ + IP_Address_t DestinationAddress; /**< Destination protocol IP address of the packet */ + } IP_Header_t; + + /* Function Prototypes: */ + int16_t IP_ProcessIPPacket(Ethernet_Frame_Info_t* const FrameIN, + void* InDataStart, + void* OutDataStart); + +#endif + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ProtocolDecoders.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ProtocolDecoders.c new file mode 100644 index 0000000000..47e00a146d --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ProtocolDecoders.c @@ -0,0 +1,277 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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. +*/ + +/* Protocol decoders for Ethernet, TCP, IP, ICMP and ARP. Each of these routines + accepts a header to the appropriate protocol and prints out pertinent information + on the packet through the serial port. + + To disable printing of a specific protocol, define the token NO_DECODE_{Protocol} + in the project makefile, and pass it to the compiler using the -D switch. +*/ + +/** \file + * + * Protocol decoding routines, for the plain-text decoding of Ethernet frames for debugging purposes. + * Enabled protocol decoders will print incoming Ethernet frame contents through the USART in a human + * readable format. + * + * Note that the USART is a slow transmission medium, and will slow down packet processing considerably. + * Packet decoding routines can be disabled by defining NO_DECODE_{Protocol Name} in the project makefile + * and passing it to the compiler via the -D switch. + */ + +#include "ProtocolDecoders.h" + +/** Decodes an Ethernet frame header and prints its contents to through the USART in a human readable format. + * + * \param[in] InDataStart Pointer to the start of an Ethernet frame of data + */ +void DecodeEthernetFrameHeader(void* InDataStart) +{ + #if !defined(NO_DECODE_ETHERNET) + Ethernet_Frame_Header_t* FrameHeader = (Ethernet_Frame_Header_t*)InDataStart; + + printf_P(PSTR("\r\n")); + + printf_P(PSTR(" ETHERNET\r\n")); + + if (!(MAC_COMPARE(&FrameHeader->Destination, &ServerMACAddress)) && + !(MAC_COMPARE(&FrameHeader->Destination, &BroadcastMACAddress))) + { + printf_P(PSTR(" + NOT ADDRESSED TO DEVICE\r\n")); + return; + } + + printf_P(PSTR(" + MAC Source : %02X:%02X:%02X:%02X:%02X:%02X\r\n"), FrameHeader->Source.Octets[0], + FrameHeader->Source.Octets[1], + FrameHeader->Source.Octets[2], + FrameHeader->Source.Octets[3], + FrameHeader->Source.Octets[4], + FrameHeader->Source.Octets[5]); + + printf_P(PSTR(" + MAC Dest: %02X:%02X:%02X:%02X:%02X:%02X\r\n"), FrameHeader->Destination.Octets[0], + FrameHeader->Destination.Octets[1], + FrameHeader->Destination.Octets[2], + FrameHeader->Destination.Octets[3], + FrameHeader->Destination.Octets[4], + FrameHeader->Destination.Octets[5]); + + printf_P(PSTR(" + Protocol: 0x%04x\r\n"), SwapEndian_16(FrameHeader->EtherType)); + #endif +} + +/** Decodes an ARP header and prints its contents to through the USART in a human readable format. + * + * \param[in] InDataStart Pointer to the start of an ARP packet header + */ +void DecodeARPHeader(void* InDataStart) +{ + #if !defined(NO_DECODE_ARP) + ARP_Header_t* ARPHeader = (ARP_Header_t*)InDataStart; + + printf_P(PSTR(" \\\r\n ARP\r\n")); + + if (!(IP_COMPARE(&ARPHeader->TPA, &ServerIPAddress)) && + !(MAC_COMPARE(&ARPHeader->THA, &ServerMACAddress))) + { + printf_P(PSTR(" + NOT ADDRESSED TO DEVICE\r\n")); + return; + } + + printf_P(PSTR(" + Protocol: %x\r\n"), SwapEndian_16(ARPHeader->ProtocolType)); + printf_P(PSTR(" + Operation: %u\r\n"), SwapEndian_16(ARPHeader->Operation)); + + if (SwapEndian_16(ARPHeader->ProtocolType) == ETHERTYPE_IPV4) + { + printf_P(PSTR(" + SHA MAC: %02X:%02X:%02X:%02X:%02X:%02X\r\n"), ARPHeader->SHA.Octets[0], + ARPHeader->SHA.Octets[1], + ARPHeader->SHA.Octets[2], + ARPHeader->SHA.Octets[3], + ARPHeader->SHA.Octets[4], + ARPHeader->SHA.Octets[5]); + + printf_P(PSTR(" + SPA IP: %u.%u.%u.%u\r\n"), ARPHeader->SPA.Octets[0], + ARPHeader->SPA.Octets[1], + ARPHeader->SPA.Octets[2], + ARPHeader->SPA.Octets[3]); + + printf_P(PSTR(" + THA MAC: %02X:%02X:%02X:%02X:%02X:%02X\r\n"), ARPHeader->THA.Octets[0], + ARPHeader->THA.Octets[1], + ARPHeader->THA.Octets[2], + ARPHeader->THA.Octets[3], + ARPHeader->THA.Octets[4], + ARPHeader->THA.Octets[5]); + + printf_P(PSTR(" + TPA IP: %u.%u.%u.%u\r\n"), ARPHeader->TPA.Octets[0], + ARPHeader->TPA.Octets[1], + ARPHeader->TPA.Octets[2], + ARPHeader->TPA.Octets[3]); + } + #endif +} + +/** Decodes an IP header and prints its contents to through the USART in a human readable format. + * + * \param[in] InDataStart Pointer to the start of an IP packet header + */ +void DecodeIPHeader(void* InDataStart) +{ + #if !defined(NO_DECODE_IP) + IP_Header_t* IPHeader = (IP_Header_t*)InDataStart; + + uint16_t HeaderLengthBytes = (IPHeader->HeaderLength * sizeof(uint32_t)); + + printf_P(PSTR(" \\\r\n IP\r\n")); + + if (!(IP_COMPARE(&IPHeader->DestinationAddress, &ServerIPAddress))) + { + printf_P(PSTR(" + NOT ADDRESSED TO DEVICE\r\n")); + return; + } + + printf_P(PSTR(" + Header Length: %u Bytes\r\n"), HeaderLengthBytes); + printf_P(PSTR(" + Packet Version: %u\r\n"), IPHeader->Version); + printf_P(PSTR(" + Total Length: %u\r\n"), SwapEndian_16(IPHeader->TotalLength)); + + printf_P(PSTR(" + Protocol: %u\r\n"), IPHeader->Protocol); + printf_P(PSTR(" + TTL: %u\r\n"), IPHeader->TTL); + + printf_P(PSTR(" + IP Src: %u.%u.%u.%u\r\n"), IPHeader->SourceAddress.Octets[0], + IPHeader->SourceAddress.Octets[1], + IPHeader->SourceAddress.Octets[2], + IPHeader->SourceAddress.Octets[3]); + + printf_P(PSTR(" + IP Dst: %u.%u.%u.%u\r\n"), IPHeader->DestinationAddress.Octets[0], + IPHeader->DestinationAddress.Octets[1], + IPHeader->DestinationAddress.Octets[2], + IPHeader->DestinationAddress.Octets[3]); + #endif +} + +/** Decodes an ICMP header and prints its contents to through the USART in a human readable format. + * + * \param[in] InDataStart Pointer to the start of an ICMP packet header + */ +void DecodeICMPHeader(void* InDataStart) +{ + #if !defined(NO_DECODE_ICMP) + ICMP_Header_t* ICMPHeader = (ICMP_Header_t*)InDataStart; + + printf_P(PSTR(" \\\r\n ICMP\r\n")); + + printf_P(PSTR(" + Type: %u\r\n"), ICMPHeader->Type); + printf_P(PSTR(" + Code: %u\r\n"), ICMPHeader->Code); + #endif +} + +/** Decodes a TCP header and prints its contents to through the USART in a human readable format. + * + * \param[in] InDataStart Pointer to the start of a TCP packet header + */ +void DecodeTCPHeader(void* InDataStart) +{ + #if !defined(NO_DECODE_TCP) + TCP_Header_t* TCPHeader = (TCP_Header_t*)InDataStart; + + uint16_t HeaderLengthBytes = (TCPHeader->DataOffset * sizeof(uint32_t)); + + printf_P(PSTR(" \\\r\n TCP\r\n")); + + printf_P(PSTR(" + Header Length: %u Bytes\r\n"), HeaderLengthBytes); + + printf_P(PSTR(" + Source Port: %u\r\n"), SwapEndian_16(TCPHeader->SourcePort)); + printf_P(PSTR(" + Destination Port: %u\r\n"), SwapEndian_16(TCPHeader->DestinationPort)); + + printf_P(PSTR(" + Sequence Number: %lu\r\n"), SwapEndian_32(TCPHeader->SequenceNumber)); + printf_P(PSTR(" + Acknowledgment Number: %lu\r\n"), SwapEndian_32(TCPHeader->AcknowledgmentNumber)); + + printf_P(PSTR(" + Flags: 0x%02X\r\n"), TCPHeader->Flags); + + if (TCP_GetPortState(TCPHeader->DestinationPort) == TCP_Port_Closed) + printf_P(PSTR(" + NOT LISTENING ON DESTINATION PORT\r\n")); + #endif +} + +/** Decodes an UDP header and prints its contents to through the USART in a human readable format. + * + * \param[in] InDataStart Pointer to the start of a UDP packet header + */ +void DecodeUDPHeader(void* InDataStart) +{ + #if !defined(NO_DECODE_UDP) + UDP_Header_t* UDPHeader = (UDP_Header_t*)InDataStart; + + printf_P(PSTR(" \\\r\n UDP\r\n")); + + printf_P(PSTR(" + Source Port: %u\r\n"), SwapEndian_16(UDPHeader->SourcePort)); + printf_P(PSTR(" + Destination Port: %u\r\n"), SwapEndian_16(UDPHeader->DestinationPort)); + + printf_P(PSTR(" + Data Length: %d\r\n"), SwapEndian_16(UDPHeader->Length)); + #endif +} + +/** Decodes an DHCP header and prints its contents to through the USART in a human readable format. + * + * \param[in] InDataStart Pointer to the start of a DHCP packet header + */ +void DecodeDHCPHeader(void* InDataStart) +{ + #if !defined(NO_DECODE_DHCP) + uint8_t* DHCPOptions = (InDataStart + sizeof(DHCP_Header_t)); + + printf_P(PSTR(" \\\r\n DHCP\r\n")); + + while (DHCPOptions[0] != DHCP_OPTION_END) + { + if (DHCPOptions[0] == DHCP_OPTION_MESSAGETYPE) + { + switch (DHCPOptions[2]) + { + case DHCP_MESSAGETYPE_DISCOVER: + printf_P(PSTR(" + DISCOVER\r\n")); + break; + case DHCP_MESSAGETYPE_REQUEST: + printf_P(PSTR(" + REQUEST\r\n")); + break; + case DHCP_MESSAGETYPE_RELEASE: + printf_P(PSTR(" + RELEASE\r\n")); + break; + case DHCP_MESSAGETYPE_DECLINE: + printf_P(PSTR(" + DECLINE\r\n")); + break; + } + } + + DHCPOptions += ((DHCPOptions[0] == DHCP_OPTION_PAD) ? 1 : (DHCPOptions[1] + 2)); + } + + #endif +} + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ProtocolDecoders.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ProtocolDecoders.h new file mode 100644 index 0000000000..6a7d201953 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/ProtocolDecoders.h @@ -0,0 +1,60 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Header file for ProtocolDecoders.c. + */ + +#ifndef _PROTOCOL_DECODERS_H_ +#define _PROTOCOL_DECODERS_H_ + + /* Includes: */ + #include + #include + #include + + #include + + #include "EthernetProtocols.h" + #include "Ethernet.h" + #include "Config/AppConfig.h" + + /* Function Prototypes: */ + void DecodeEthernetFrameHeader(void* InDataStart); + void DecodeARPHeader(void* InDataStart); + void DecodeIPHeader(void* InDataStart); + void DecodeICMPHeader(void* InDataStart); + void DecodeTCPHeader(void* InDataStart); + void DecodeUDPHeader(void* InDataStart); + void DecodeDHCPHeader(void* InDataStart); + +#endif + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.c new file mode 100644 index 0000000000..892c5030bd --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.c @@ -0,0 +1,632 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Transmission Control Protocol (TCP) packet handling routines. This protocol handles the reliable in-order transmission + * and reception of packets to and from devices on a network, to "ports" on the device. It is used in situations where data + * delivery must be reliable and correct, e.g. HTTP, TELNET and most other non-streaming protocols. + */ + +#define INCLUDE_FROM_TCP_C +#include "TCP.h" + +/** Port state table array. This contains the current status of TCP ports in the device. To save on space, only open ports are + * stored - closed ports may be overwritten at any time, and the system will assume any ports not present in the array are closed. This + * allows for MAX_OPEN_TCP_PORTS to be less than the number of ports used by the application if desired. + */ +TCP_PortState_t PortStateTable[MAX_OPEN_TCP_PORTS]; + +/** Connection state table array. This contains the current status of TCP connections in the device. To save on space, only active + * (non-closed) connections are stored - closed connections may be overwritten at any time, and the system will assume any connections + * not present in the array are closed. + */ +TCP_ConnectionState_t ConnectionStateTable[MAX_TCP_CONNECTIONS]; + + +/** Task to handle the calling of each registered application's callback function, to process and generate TCP packets at the application + * level. If an application produces a response, this task constructs the appropriate Ethernet frame and places it into the Ethernet OUT + * buffer for later transmission. + */ +void TCP_TCPTask(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo, + Ethernet_Frame_Info_t* const FrameOUT) +{ + /* Run each application in sequence, to process incoming and generate outgoing packets */ + for (uint8_t CSTableEntry = 0; CSTableEntry < MAX_TCP_CONNECTIONS; CSTableEntry++) + { + /* Find the corresponding port entry in the port table */ + for (uint8_t PTableEntry = 0; PTableEntry < MAX_OPEN_TCP_PORTS; PTableEntry++) + { + /* Run the application handler for the port */ + if ((PortStateTable[PTableEntry].Port == ConnectionStateTable[CSTableEntry].Port) && + (PortStateTable[PTableEntry].State == TCP_Port_Open)) + { + PortStateTable[PTableEntry].ApplicationHandler(&ConnectionStateTable[CSTableEntry], + &ConnectionStateTable[CSTableEntry].Info.Buffer); + } + } + } + + /* Bail out early if there is already a frame waiting to be sent in the Ethernet OUT buffer */ + if (FrameOUT->FrameLength) + return; + + /* Send response packets from each application as the TCP packet buffers are filled by the applications */ + for (uint8_t CSTableEntry = 0; CSTableEntry < MAX_TCP_CONNECTIONS; CSTableEntry++) + { + /* For each completely received packet, pass it along to the listening application */ + if ((ConnectionStateTable[CSTableEntry].Info.Buffer.Direction == TCP_PACKETDIR_OUT) && + (ConnectionStateTable[CSTableEntry].Info.Buffer.Ready)) + { + Ethernet_Frame_Header_t* FrameOUTHeader = (Ethernet_Frame_Header_t*)&FrameOUT->FrameData; + IP_Header_t* IPHeaderOUT = (IP_Header_t*)&FrameOUT->FrameData[sizeof(Ethernet_Frame_Header_t)]; + TCP_Header_t* TCPHeaderOUT = (TCP_Header_t*)&FrameOUT->FrameData[sizeof(Ethernet_Frame_Header_t) + + sizeof(IP_Header_t)]; + void* TCPDataOUT = &FrameOUT->FrameData[sizeof(Ethernet_Frame_Header_t) + + sizeof(IP_Header_t) + + sizeof(TCP_Header_t)]; + + uint16_t PacketSize = ConnectionStateTable[CSTableEntry].Info.Buffer.Length; + + /* Fill out the TCP data */ + TCPHeaderOUT->SourcePort = ConnectionStateTable[CSTableEntry].Port; + TCPHeaderOUT->DestinationPort = ConnectionStateTable[CSTableEntry].RemotePort; + TCPHeaderOUT->SequenceNumber = SwapEndian_32(ConnectionStateTable[CSTableEntry].Info.SequenceNumberOut); + TCPHeaderOUT->AcknowledgmentNumber = SwapEndian_32(ConnectionStateTable[CSTableEntry].Info.SequenceNumberIn); + TCPHeaderOUT->DataOffset = (sizeof(TCP_Header_t) / sizeof(uint32_t)); + TCPHeaderOUT->WindowSize = SwapEndian_16(TCP_WINDOW_SIZE); + + TCPHeaderOUT->Flags = TCP_FLAG_ACK; + TCPHeaderOUT->UrgentPointer = 0; + TCPHeaderOUT->Checksum = 0; + TCPHeaderOUT->Reserved = 0; + + memcpy(TCPDataOUT, ConnectionStateTable[CSTableEntry].Info.Buffer.Data, PacketSize); + + ConnectionStateTable[CSTableEntry].Info.SequenceNumberOut += PacketSize; + + TCPHeaderOUT->Checksum = TCP_Checksum16(TCPHeaderOUT, &ServerIPAddress, + &ConnectionStateTable[CSTableEntry].RemoteAddress, + (sizeof(TCP_Header_t) + PacketSize)); + + PacketSize += sizeof(TCP_Header_t); + + /* Fill out the response IP header */ + IPHeaderOUT->TotalLength = SwapEndian_16(sizeof(IP_Header_t) + PacketSize); + IPHeaderOUT->TypeOfService = 0; + IPHeaderOUT->HeaderLength = (sizeof(IP_Header_t) / sizeof(uint32_t)); + IPHeaderOUT->Version = 4; + IPHeaderOUT->Flags = 0; + IPHeaderOUT->FragmentOffset = 0; + IPHeaderOUT->Identification = 0; + IPHeaderOUT->HeaderChecksum = 0; + IPHeaderOUT->Protocol = PROTOCOL_TCP; + IPHeaderOUT->TTL = DEFAULT_TTL; + IPHeaderOUT->SourceAddress = ServerIPAddress; + IPHeaderOUT->DestinationAddress = ConnectionStateTable[CSTableEntry].RemoteAddress; + + IPHeaderOUT->HeaderChecksum = Ethernet_Checksum16(IPHeaderOUT, sizeof(IP_Header_t)); + + PacketSize += sizeof(IP_Header_t); + + /* Fill out the response Ethernet frame header */ + FrameOUTHeader->Source = ServerMACAddress; + FrameOUTHeader->Destination = (MAC_Address_t){{0x02, 0x00, 0x02, 0x00, 0x02, 0x00}}; + FrameOUTHeader->EtherType = SwapEndian_16(ETHERTYPE_IPV4); + + PacketSize += sizeof(Ethernet_Frame_Header_t); + + /* Set the response length in the buffer and indicate that a response is ready to be sent */ + FrameOUT->FrameLength = PacketSize; + + ConnectionStateTable[CSTableEntry].Info.Buffer.Ready = false; + + break; + } + } +} + +/** Initializes the TCP protocol handler, clearing the port and connection state tables. This must be called before TCP packets are + * processed. + */ +void TCP_Init(void) +{ + /* Initialize the port state table with all CLOSED entries */ + for (uint8_t PTableEntry = 0; PTableEntry < MAX_OPEN_TCP_PORTS; PTableEntry++) + PortStateTable[PTableEntry].State = TCP_Port_Closed; + + /* Initialize the connection table with all CLOSED entries */ + for (uint8_t CSTableEntry = 0; CSTableEntry < MAX_TCP_CONNECTIONS; CSTableEntry++) + ConnectionStateTable[CSTableEntry].State = TCP_Connection_Closed; +} + +/** Sets the state and callback handler of the given port, specified in big endian to the given state. + * + * \param[in] Port Port whose state and callback function to set, specified in big endian + * \param[in] State New state of the port, a value from the \ref TCP_PortStates_t enum + * \param[in] Handler Application callback handler for the port + * + * \return Boolean \c true if the port state was set, \c false otherwise (no more space in the port state table) + */ +bool TCP_SetPortState(const uint16_t Port, + const uint8_t State, + void (*Handler)(TCP_ConnectionState_t*, TCP_ConnectionBuffer_t*)) +{ + /* Note, Port number should be specified in BIG endian to simplify network code */ + + /* Check to see if the port entry is already in the port state table */ + for (uint8_t PTableEntry = 0; PTableEntry < MAX_OPEN_TCP_PORTS; PTableEntry++) + { + /* Find existing entry for the port in the table, update it if found */ + if (PortStateTable[PTableEntry].Port == Port) + { + PortStateTable[PTableEntry].State = State; + PortStateTable[PTableEntry].ApplicationHandler = Handler; + return true; + } + } + + /* Check if trying to open the port -- if so we need to find an unused (closed) entry and replace it */ + if (State == TCP_Port_Open) + { + for (uint8_t PTableEntry = 0; PTableEntry < MAX_OPEN_TCP_PORTS; PTableEntry++) + { + /* Find a closed port entry in the table, change it to the given port and state */ + if (PortStateTable[PTableEntry].State == TCP_Port_Closed) + { + PortStateTable[PTableEntry].Port = Port; + PortStateTable[PTableEntry].State = State; + PortStateTable[PTableEntry].ApplicationHandler = Handler; + return true; + } + } + + /* Port not in table and no room to add it, return failure */ + return false; + } + else + { + /* Port not in table but trying to close it, so operation successful */ + return true; + } +} + +/** Retrieves the current state of a given TCP port, specified in big endian. + * + * \param[in] Port TCP port whose state is to be retrieved, given in big-endian + * + * \return A value from the \ref TCP_PortStates_t enum + */ +uint8_t TCP_GetPortState(const uint16_t Port) +{ + /* Note, Port number should be specified in BIG endian to simplify network code */ + + for (uint8_t PTableEntry = 0; PTableEntry < MAX_OPEN_TCP_PORTS; PTableEntry++) + { + /* Find existing entry for the port in the table, return the port status if found */ + if (PortStateTable[PTableEntry].Port == Port) + return PortStateTable[PTableEntry].State; + } + + /* Port not in table, assume closed */ + return TCP_Port_Closed; +} + +/** Sets the connection state of the given port, remote address and remote port to the given TCP connection state. If the + * connection exists in the connection state table it is updated, otherwise it is created if possible. + * + * \param[in] Port TCP port of the connection on the device, specified in big endian + * \param[in] RemoteAddress Remote protocol IP address of the connected device + * \param[in] RemotePort TCP port of the remote device in the connection, specified in big endian + * \param[in] State TCP connection state, a value from the \ref TCP_ConnectionStates_t enum + * + * \return Boolean \c true if the connection was updated or created, \c false otherwise (no more space in the connection state table) + */ +bool TCP_SetConnectionState(const uint16_t Port, + const IP_Address_t* RemoteAddress, + const uint16_t RemotePort, + const uint8_t State) +{ + /* Note, Port number should be specified in BIG endian to simplify network code */ + + for (uint8_t CSTableEntry = 0; CSTableEntry < MAX_TCP_CONNECTIONS; CSTableEntry++) + { + /* Find port entry in the table */ + if ((ConnectionStateTable[CSTableEntry].Port == Port) && + IP_COMPARE(&ConnectionStateTable[CSTableEntry].RemoteAddress, RemoteAddress) && + ConnectionStateTable[CSTableEntry].RemotePort == RemotePort) + { + ConnectionStateTable[CSTableEntry].State = State; + return true; + } + } + + for (uint8_t CSTableEntry = 0; CSTableEntry < MAX_TCP_CONNECTIONS; CSTableEntry++) + { + /* Find empty entry in the table */ + if (ConnectionStateTable[CSTableEntry].State == TCP_Connection_Closed) + { + ConnectionStateTable[CSTableEntry].Port = Port; + ConnectionStateTable[CSTableEntry].RemoteAddress = *RemoteAddress; + ConnectionStateTable[CSTableEntry].RemotePort = RemotePort; + ConnectionStateTable[CSTableEntry].State = State; + return true; + } + } + + return false; +} + +/** Retrieves the current state of a given TCP connection to a host. + * + * \param[in] Port TCP port on the device in the connection, specified in big endian + * \param[in] RemoteAddress Remote protocol IP address of the connected host + * \param[in] RemotePort Remote TCP port of the connected host, specified in big endian + * + * \return A value from the \ref TCP_ConnectionStates_t enum + */ +uint8_t TCP_GetConnectionState(const uint16_t Port, + const IP_Address_t* RemoteAddress, + const uint16_t RemotePort) +{ + /* Note, Port number should be specified in BIG endian to simplify network code */ + + for (uint8_t CSTableEntry = 0; CSTableEntry < MAX_TCP_CONNECTIONS; CSTableEntry++) + { + /* Find port entry in the table */ + if ((ConnectionStateTable[CSTableEntry].Port == Port) && + IP_COMPARE(&ConnectionStateTable[CSTableEntry].RemoteAddress, RemoteAddress) && + ConnectionStateTable[CSTableEntry].RemotePort == RemotePort) + + { + return ConnectionStateTable[CSTableEntry].State; + } + } + + return TCP_Connection_Closed; +} + +/** Retrieves the connection info structure of a given connection to a host. + * + * \param[in] Port TCP port on the device in the connection, specified in big endian + * \param[in] RemoteAddress Remote protocol IP address of the connected host + * \param[in] RemotePort Remote TCP port of the connected host, specified in big endian + * + * \return ConnectionInfo structure of the connection if found, NULL otherwise + */ +TCP_ConnectionInfo_t* TCP_GetConnectionInfo(const uint16_t Port, + const IP_Address_t* RemoteAddress, + const uint16_t RemotePort) +{ + /* Note, Port number should be specified in BIG endian to simplify network code */ + + for (uint8_t CSTableEntry = 0; CSTableEntry < MAX_TCP_CONNECTIONS; CSTableEntry++) + { + /* Find port entry in the table */ + if ((ConnectionStateTable[CSTableEntry].Port == Port) && + IP_COMPARE(&ConnectionStateTable[CSTableEntry].RemoteAddress, RemoteAddress) && + ConnectionStateTable[CSTableEntry].RemotePort == RemotePort) + { + return &ConnectionStateTable[CSTableEntry].Info; + } + } + + return NULL; +} + +/** Processes a TCP packet inside an Ethernet frame, and writes the appropriate response + * to the output Ethernet frame if one is created by a application handler. + * + * \param[in] IPHeaderInStart Pointer to the start of the incoming packet's IP header + * \param[in] TCPHeaderInStart Pointer to the start of the incoming packet's TCP header + * \param[out] TCPHeaderOutStart Pointer to the start of the outgoing packet's TCP header + * + * \return The number of bytes written to the out Ethernet frame if any, NO_RESPONSE if no + * response was generated, NO_PROCESS if the packet processing was deferred until the + * next Ethernet packet handler iteration + */ +int16_t TCP_ProcessTCPPacket(void* IPHeaderInStart, + void* TCPHeaderInStart, + void* TCPHeaderOutStart) +{ + IP_Header_t* IPHeaderIN = (IP_Header_t*)IPHeaderInStart; + TCP_Header_t* TCPHeaderIN = (TCP_Header_t*)TCPHeaderInStart; + TCP_Header_t* TCPHeaderOUT = (TCP_Header_t*)TCPHeaderOutStart; + + TCP_ConnectionInfo_t* ConnectionInfo; + + DecodeTCPHeader(TCPHeaderInStart); + + bool PacketResponse = false; + + /* Check if the destination port is open and allows incoming connections */ + if (TCP_GetPortState(TCPHeaderIN->DestinationPort) == TCP_Port_Open) + { + /* Detect SYN from host to start a connection */ + if (TCPHeaderIN->Flags & TCP_FLAG_SYN) + TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, TCPHeaderIN->SourcePort, TCP_Connection_Listen); + + /* Detect RST from host to abort existing connection */ + if (TCPHeaderIN->Flags & TCP_FLAG_RST) + { + if (TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort, TCP_Connection_Closed)) + { + TCPHeaderOUT->Flags = (TCP_FLAG_RST | TCP_FLAG_ACK); + PacketResponse = true; + } + } + else + { + /* Process the incoming TCP packet based on the current connection state for the sender and port */ + switch (TCP_GetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, TCPHeaderIN->SourcePort)) + { + case TCP_Connection_Listen: + if (TCPHeaderIN->Flags == TCP_FLAG_SYN) + { + /* SYN connection starts a connection with a peer */ + if (TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort, TCP_Connection_SYNReceived)) + { + TCPHeaderOUT->Flags = (TCP_FLAG_SYN | TCP_FLAG_ACK); + + ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, TCPHeaderIN->SourcePort); + + ConnectionInfo->SequenceNumberIn = (SwapEndian_32(TCPHeaderIN->SequenceNumber) + 1); + ConnectionInfo->SequenceNumberOut = 0; + ConnectionInfo->Buffer.InUse = false; + } + else + { + TCPHeaderOUT->Flags = TCP_FLAG_RST; + } + + PacketResponse = true; + } + + break; + case TCP_Connection_SYNReceived: + if (TCPHeaderIN->Flags == TCP_FLAG_ACK) + { + /* ACK during the connection process completes the connection to a peer */ + + TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort, TCP_Connection_Established); + + ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort); + + ConnectionInfo->SequenceNumberOut++; + } + + break; + case TCP_Connection_Established: + if (TCPHeaderIN->Flags == (TCP_FLAG_FIN | TCP_FLAG_ACK)) + { + /* FIN ACK when connected to a peer starts the finalization process */ + + TCPHeaderOUT->Flags = (TCP_FLAG_FIN | TCP_FLAG_ACK); + PacketResponse = true; + + TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort, TCP_Connection_CloseWait); + + ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort); + + ConnectionInfo->SequenceNumberIn++; + ConnectionInfo->SequenceNumberOut++; + } + else if ((TCPHeaderIN->Flags == TCP_FLAG_ACK) || (TCPHeaderIN->Flags == (TCP_FLAG_ACK | TCP_FLAG_PSH))) + { + ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort); + + /* Check if the buffer is currently in use either by a buffered data to send, or receive */ + if ((ConnectionInfo->Buffer.InUse == false) && (ConnectionInfo->Buffer.Ready == false)) + { + ConnectionInfo->Buffer.Direction = TCP_PACKETDIR_IN; + ConnectionInfo->Buffer.InUse = true; + ConnectionInfo->Buffer.Length = 0; + } + + /* Check if the buffer has been claimed by us to read in data from the peer */ + if ((ConnectionInfo->Buffer.Direction == TCP_PACKETDIR_IN) && + (ConnectionInfo->Buffer.Length != TCP_WINDOW_SIZE)) + { + uint16_t IPOffset = (IPHeaderIN->HeaderLength * sizeof(uint32_t)); + uint16_t TCPOffset = (TCPHeaderIN->DataOffset * sizeof(uint32_t)); + uint16_t DataLength = (SwapEndian_16(IPHeaderIN->TotalLength) - IPOffset - TCPOffset); + + /* Copy the packet data into the buffer */ + memcpy(&ConnectionInfo->Buffer.Data[ConnectionInfo->Buffer.Length], + &((uint8_t*)TCPHeaderInStart)[TCPOffset], + DataLength); + + ConnectionInfo->SequenceNumberIn += DataLength; + ConnectionInfo->Buffer.Length += DataLength; + + /* Check if the buffer is full or if the PSH flag is set, if so indicate buffer ready */ + if ((!(TCP_WINDOW_SIZE - ConnectionInfo->Buffer.Length)) || (TCPHeaderIN->Flags & TCP_FLAG_PSH)) + { + ConnectionInfo->Buffer.InUse = false; + ConnectionInfo->Buffer.Ready = true; + + TCPHeaderOUT->Flags = TCP_FLAG_ACK; + PacketResponse = true; + } + } + else + { + /* Buffer is currently in use by the application, defer processing of the incoming packet */ + return NO_PROCESS; + } + } + + break; + case TCP_Connection_Closing: + ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort); + + TCPHeaderOUT->Flags = (TCP_FLAG_ACK | TCP_FLAG_FIN); + PacketResponse = true; + + ConnectionInfo->Buffer.InUse = false; + + TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort, TCP_Connection_FINWait1); + + break; + case TCP_Connection_FINWait1: + if (TCPHeaderIN->Flags == (TCP_FLAG_FIN | TCP_FLAG_ACK)) + { + ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort); + + TCPHeaderOUT->Flags = TCP_FLAG_ACK; + PacketResponse = true; + + ConnectionInfo->SequenceNumberIn++; + ConnectionInfo->SequenceNumberOut++; + + TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort, TCP_Connection_Closed); + } + else if (TCPHeaderIN->Flags == TCP_FLAG_ACK) + { + TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort, TCP_Connection_FINWait2); + } + + break; + case TCP_Connection_FINWait2: + if (TCPHeaderIN->Flags == (TCP_FLAG_FIN | TCP_FLAG_ACK)) + { + ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort); + + TCPHeaderOUT->Flags = TCP_FLAG_ACK; + PacketResponse = true; + + ConnectionInfo->SequenceNumberIn++; + ConnectionInfo->SequenceNumberOut++; + + TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort, TCP_Connection_Closed); + } + + break; + case TCP_Connection_CloseWait: + if (TCPHeaderIN->Flags == TCP_FLAG_ACK) + { + TCP_SetConnectionState(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort, TCP_Connection_Closed); + } + + break; + } + } + } + else + { + /* Port is not open, indicate via a RST/ACK response to the sender */ + TCPHeaderOUT->Flags = (TCP_FLAG_RST | TCP_FLAG_ACK); + PacketResponse = true; + } + + /* Check if we need to respond to the sent packet */ + if (PacketResponse) + { + ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, &IPHeaderIN->SourceAddress, + TCPHeaderIN->SourcePort); + + TCPHeaderOUT->SourcePort = TCPHeaderIN->DestinationPort; + TCPHeaderOUT->DestinationPort = TCPHeaderIN->SourcePort; + TCPHeaderOUT->SequenceNumber = SwapEndian_32(ConnectionInfo->SequenceNumberOut); + TCPHeaderOUT->AcknowledgmentNumber = SwapEndian_32(ConnectionInfo->SequenceNumberIn); + TCPHeaderOUT->DataOffset = (sizeof(TCP_Header_t) / sizeof(uint32_t)); + + if (!(ConnectionInfo->Buffer.InUse)) + TCPHeaderOUT->WindowSize = SwapEndian_16(TCP_WINDOW_SIZE); + else + TCPHeaderOUT->WindowSize = SwapEndian_16(TCP_WINDOW_SIZE - ConnectionInfo->Buffer.Length); + + TCPHeaderOUT->UrgentPointer = 0; + TCPHeaderOUT->Checksum = 0; + TCPHeaderOUT->Reserved = 0; + + TCPHeaderOUT->Checksum = TCP_Checksum16(TCPHeaderOUT, &IPHeaderIN->DestinationAddress, + &IPHeaderIN->SourceAddress, sizeof(TCP_Header_t)); + + return sizeof(TCP_Header_t); + } + + return NO_RESPONSE; +} + +/** Calculates the appropriate TCP checksum, consisting of the addition of the one's compliment of each word, + * complimented. + * + * \param[in] TCPHeaderOutStart Pointer to the start of the packet's outgoing TCP header + * \param[in] SourceAddress Source protocol IP address of the outgoing IP header + * \param[in] DestinationAddress Destination protocol IP address of the outgoing IP header + * \param[in] TCPOutSize Size in bytes of the TCP data header and payload + * + * \return A 16-bit TCP checksum value + */ +static uint16_t TCP_Checksum16(void* TCPHeaderOutStart, + const IP_Address_t* SourceAddress, + const IP_Address_t* DestinationAddress, + uint16_t TCPOutSize) +{ + uint32_t Checksum = 0; + + /* TCP/IP checksums are the addition of the one's compliment of each word including the IP pseudo-header, + complimented */ + + Checksum += ((uint16_t*)SourceAddress)[0]; + Checksum += ((uint16_t*)SourceAddress)[1]; + Checksum += ((uint16_t*)DestinationAddress)[0]; + Checksum += ((uint16_t*)DestinationAddress)[1]; + Checksum += SwapEndian_16(PROTOCOL_TCP); + Checksum += SwapEndian_16(TCPOutSize); + + for (uint16_t CurrWord = 0; CurrWord < (TCPOutSize >> 1); CurrWord++) + Checksum += ((uint16_t*)TCPHeaderOutStart)[CurrWord]; + + if (TCPOutSize & 0x01) + Checksum += (((uint16_t*)TCPHeaderOutStart)[TCPOutSize >> 1] & 0x00FF); + + while (Checksum & 0xFFFF0000) + Checksum = ((Checksum & 0xFFFF) + (Checksum >> 16)); + + return ~Checksum; +} + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.h new file mode 100644 index 0000000000..92fbdf3620 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.h @@ -0,0 +1,260 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Header file for TCP.c. + */ + +#ifndef _TCP_H_ +#define _TCP_H_ + + /* Includes: */ + #include + #include + + #include "EthernetProtocols.h" + #include "Ethernet.h" + #include "ProtocolDecoders.h" + + /* Macros: */ + /** Maximum number of TCP ports which can be open at the one time. */ + #define MAX_OPEN_TCP_PORTS 1 + + /** Maximum number of TCP connections which can be sustained at the one time. */ + #define MAX_TCP_CONNECTIONS 3 + + /** TCP window size, giving the maximum number of bytes which can be buffered at the one time. */ + #define TCP_WINDOW_SIZE 512 + + /** Port number for HTTP transmissions. */ + #define TCP_PORT_HTTP SwapEndian_16(80) + + /** Data direction indicator for a TCP application buffer, indicating data from host-to-device. */ + #define TCP_PACKETDIR_IN false + + /** Data direction indicator for a TCP application buffer, indicating data from device-to-host. */ + #define TCP_PACKETDIR_OUT true + + /** Congestion Window Reduced TCP flag mask. */ + #define TCP_FLAG_CWR (1 << 7) + + /** Explicit Congestion Notification TCP flag mask. */ + #define TCP_FLAG_ECE (1 << 6) + + /** Urgent TCP flag mask. */ + #define TCP_FLAG_URG (1 << 5) + + /** Data Acknowledge TCP flag mask. */ + #define TCP_FLAG_ACK (1 << 4) + + /** Data Push TCP flag mask. */ + #define TCP_FLAG_PSH (1 << 3) + + /** Reset TCP flag mask. */ + #define TCP_FLAG_RST (1 << 2) + + /** Synchronize TCP flag mask. */ + #define TCP_FLAG_SYN (1 << 1) + + /** Connection Finalize TCP flag mask. */ + #define TCP_FLAG_FIN (1 << 0) + + /** Application macro: Determines if the given application buffer contains a packet received from the host + * + * \param[in] Buffer Application buffer to check + * + * \return Boolean \c true if the buffer contains a packet from the host, \c false otherwise + */ + #define TCP_APP_HAS_RECEIVED_PACKET(Buffer) (Buffer->Ready && (Buffer->Direction == TCP_PACKETDIR_IN)) + + /** Application macro: Indicates if the application buffer is currently locked by the application for device-to-host transfers. + * + * \param[in] Buffer Application buffer to check + * + * \return Boolean \c true if the buffer has been captured by the application for device-to-host transmissions, \c false otherwise + */ + #define TCP_APP_HAVE_CAPTURED_BUFFER(Buffer) (!(Buffer->Ready) && Buffer->InUse && (Buffer->Direction == TCP_PACKETDIR_OUT)) + + /** Application macro: Indicates if the application can lock the buffer for multiple continued device-to-host transmissions. + * + * \param[in] Buffer Application buffer to check + * + * \return Boolean \c true if the buffer may be captured by the application for device-to-host transmissions, \c false otherwise + */ + #define TCP_APP_CAN_CAPTURE_BUFFER(Buffer) Buffer->InUse + + /** Application macro: Captures the application buffer, locking it for device-to-host transmissions only. This should be + * performed when the application needs to transmit several packets worth of data in succession with no interruptions from the host. + * + * \pre The application must check that the buffer can be locked first using TCP_APP_CAN_CAPTURE_BUFFER(). + * + * \param[in] Buffer Application buffer to lock + */ + #define TCP_APP_CAPTURE_BUFFER(Buffer) do { Buffer->Direction = TCP_PACKETDIR_OUT; Buffer->InUse = true; } while (0) + + /** Application macro: Releases a captured application buffer, allowing for host-to-device packets to be received. + * + * \param[in] Buffer Application buffer to release + */ + #define TCP_APP_RELEASE_BUFFER(Buffer) do { Buffer->InUse = false; } while (0) + + /** Application macro: Sends the contents of the given application buffer to the host. + * + * \param[in] Buffer Application buffer to send + * \param[in] Len Length of data contained in the buffer + */ + #define TCP_APP_SEND_BUFFER(Buffer, Len) do { Buffer->Direction = TCP_PACKETDIR_OUT; Buffer->Length = Len; Buffer->Ready = true; } while (0) + + /** Application macro: Clears the application buffer, ready for a packet to be written to it. + * + * \param[in] Buffer Application buffer to clear + */ + #define TCP_APP_CLEAR_BUFFER(Buffer) do { Buffer->Ready = false; Buffer->Length = 0; } while (0) + + /** Application macro: Closes an open connection to a host. + * + * \param[in] Connection Open TCP connection to close + */ + #define TCP_APP_CLOSECONNECTION(Connection) do { Connection->State = TCP_Connection_Closing; } while (0) + + /* Enums: */ + /** Enum for possible TCP port states. */ + enum TCP_PortStates_t + { + TCP_Port_Closed = 0, /**< TCP port closed, no connections to a host may be made on this port. */ + TCP_Port_Open = 1, /**< TCP port open, connections to a host may be made on this port. */ + }; + + /** Enum for possible TCP connection states. */ + enum TCP_ConnectionStates_t + { + TCP_Connection_Listen = 0, /**< Listening for a connection from a host */ + TCP_Connection_SYNSent = 1, /**< Unused */ + TCP_Connection_SYNReceived = 2, /**< SYN received, waiting for ACK */ + TCP_Connection_Established = 3, /**< Connection established in both directions */ + TCP_Connection_FINWait1 = 4, /**< Closing, waiting for ACK */ + TCP_Connection_FINWait2 = 5, /**< Closing, waiting for FIN ACK */ + TCP_Connection_CloseWait = 6, /**< Closing, waiting for ACK */ + TCP_Connection_Closing = 7, /**< Unused */ + TCP_Connection_LastACK = 8, /**< Unused */ + TCP_Connection_TimeWait = 9, /**< Unused */ + TCP_Connection_Closed = 10, /**< Connection closed in both directions */ + }; + + /* Type Defines: */ + /** Type define for a TCP connection buffer structure, including size, data and direction. */ + typedef struct + { + uint16_t Length; /**< Length of data in the TCP application buffer */ + uint8_t Data[TCP_WINDOW_SIZE]; /**< TCP application data buffer */ + bool Direction; /**< Buffer transmission direction, either TCP_PACKETDIR_IN or TCP_PACKETDIR_OUT */ + bool Ready; /**< If data from host, indicates buffer ready to be read, otherwise indicates + * buffer ready to be sent to the host + */ + bool InUse; /**< Indicates if the buffer is locked to to the current direction, and cannot be changed */ + } TCP_ConnectionBuffer_t; + + /** Type define for a TCP connection information structure. */ + typedef struct + { + uint32_t SequenceNumberIn; /**< Current TCP sequence number for host-to-device */ + uint32_t SequenceNumberOut; /**< Current TCP sequence number for device-to-host */ + TCP_ConnectionBuffer_t Buffer; /**< Connection application data buffer */ + } TCP_ConnectionInfo_t; + + /** Type define for a complete TCP connection state. */ + typedef struct + { + uint16_t Port; /**< Connection port number on the device */ + uint16_t RemotePort; /**< Connection port number on the host */ + IP_Address_t RemoteAddress; /**< Connection protocol IP address of the host */ + TCP_ConnectionInfo_t Info; /**< Connection information, including application buffer */ + uint8_t State; /**< Current connection state, a value from the \ref TCP_ConnectionStates_t enum */ + } TCP_ConnectionState_t; + + /** Type define for a TCP port state. */ + typedef struct + { + uint16_t Port; /**< TCP port number on the device */ + uint8_t State; /**< Current port state, a value from the \ref TCP_PortStates_t enum */ + void (*ApplicationHandler) (TCP_ConnectionState_t* ConnectionState, + TCP_ConnectionBuffer_t* Buffer); /**< Port application handler */ + } TCP_PortState_t; + + /** Type define for a TCP packet header. */ + typedef struct + { + uint16_t SourcePort; /**< Source port of the TCP packet */ + uint16_t DestinationPort; /**< Destination port of the TCP packet */ + + uint32_t SequenceNumber; /**< Data sequence number of the packet */ + uint32_t AcknowledgmentNumber; /**< Data acknowledgment number of the packet */ + + unsigned Reserved : 4; /**< Reserved, must be all 0 */ + unsigned DataOffset : 4; /**< Offset of the data from the start of the header, in 4 byte chunks */ + uint8_t Flags; /**< TCP packet flags */ + uint16_t WindowSize; /**< Current data window size (bytes remaining in reception buffer) */ + + uint16_t Checksum; /**< TCP checksum */ + uint16_t UrgentPointer; /**< Urgent data pointer */ + } TCP_Header_t; + + /* Function Prototypes: */ + void TCP_TCPTask(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo, + Ethernet_Frame_Info_t* const FrameOUT); + void TCP_Init(void); + bool TCP_SetPortState(const uint16_t Port, + const uint8_t State, + void (*Handler)(TCP_ConnectionState_t*, TCP_ConnectionBuffer_t*)); + uint8_t TCP_GetPortState(const uint16_t Port); + bool TCP_SetConnectionState(const uint16_t Port, + const IP_Address_t* RemoteAddress, + const uint16_t RemotePort, + const uint8_t State); + uint8_t TCP_GetConnectionState(const uint16_t Port, + const IP_Address_t* RemoteAddress, + const uint16_t RemotePort); + TCP_ConnectionInfo_t* TCP_GetConnectionInfo(const uint16_t Port, + const IP_Address_t* RemoteAddress, + const uint16_t RemotePort); + int16_t TCP_ProcessTCPPacket(void* IPHeaderInStart, + void* TCPHeaderInStart, + void* TCPHeaderOutStart); + + #if defined(INCLUDE_FROM_TCP_C) + static uint16_t TCP_Checksum16(void* TCPHeaderOutStart, + const IP_Address_t* SourceAddress, + const IP_Address_t* DestinationAddress, + uint16_t TCPOutSize); + #endif + +#endif + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/UDP.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/UDP.c new file mode 100644 index 0000000000..95911fc5d3 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/UDP.c @@ -0,0 +1,84 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * User Datagram Protocol (UDP) packet handling routines. This protocol handles high throughput, low + * reliability packets which are typically used to encapsulate streaming data. + */ + +#define INCLUDE_FROM_UDP_C +#include "UDP.h" + +/** Processes a UDP packet inside an Ethernet frame, and writes the appropriate response + * to the output Ethernet frame if a sub-protocol handler has created a response packet. + * + * \param[in] IPHeaderInStart Pointer to the start of the incoming packet's IP header + * \param[in] UDPHeaderInStart Pointer to the start of the incoming packet's UDP header + * \param[out] UDPHeaderOutStart Pointer to the start of the outgoing packet's UDP header + * + * \return The number of bytes written to the out Ethernet frame if any, NO_RESPONSE otherwise + */ +int16_t UDP_ProcessUDPPacket(void* IPHeaderInStart, + void* UDPHeaderInStart, + void* UDPHeaderOutStart) +{ + UDP_Header_t* UDPHeaderIN = (UDP_Header_t*)UDPHeaderInStart; + UDP_Header_t* UDPHeaderOUT = (UDP_Header_t*)UDPHeaderOutStart; + + int16_t RetSize = NO_RESPONSE; + + DecodeUDPHeader(UDPHeaderInStart); + + switch (SwapEndian_16(UDPHeaderIN->DestinationPort)) + { + case UDP_PORT_DHCP_REQUEST: + RetSize = DHCP_ProcessDHCPPacket(IPHeaderInStart, + &((uint8_t*)UDPHeaderInStart)[sizeof(UDP_Header_t)], + &((uint8_t*)UDPHeaderOutStart)[sizeof(UDP_Header_t)]); + break; + } + + /* Check to see if the protocol processing routine has filled out a response */ + if (RetSize > 0) + { + /* Fill out the response UDP packet header */ + UDPHeaderOUT->SourcePort = UDPHeaderIN->DestinationPort; + UDPHeaderOUT->DestinationPort = UDPHeaderIN->SourcePort; + UDPHeaderOUT->Checksum = 0; + UDPHeaderOUT->Length = SwapEndian_16(sizeof(UDP_Header_t) + RetSize); + + /* Return the size of the response so far */ + return (sizeof(UDP_Header_t) + RetSize); + } + + return NO_RESPONSE; +} + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/UDP.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/UDP.h new file mode 100644 index 0000000000..2a66977804 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/UDP.h @@ -0,0 +1,70 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Header file for UDP.c. + */ + +#ifndef _UDP_H_ +#define _UDP_H_ + + /* Includes: */ + #include + + #include "EthernetProtocols.h" + #include "Ethernet.h" + #include "ProtocolDecoders.h" + #include "DHCP.h" + + /* Macros: */ + /** Source UDP port for a DHCP request. */ + #define UDP_PORT_DHCP_REQUEST 67 + + /** Destination UDP port for a DHCP reply. */ + #define UDP_PORT_DHCP_REPLY 68 + + /* Type Defines: */ + /** Type define for a UDP packet header. */ + typedef struct + { + uint16_t SourcePort; /**< Packet source port */ + uint16_t DestinationPort; /**< Packet destination port */ + uint16_t Length; /**< Total packet length, in bytes */ + uint16_t Checksum; /**< Optional UDP packet checksum */ + } UDP_Header_t; + + /* Function Prototypes: */ + int16_t UDP_ProcessUDPPacket(void* IPHeaderInStart, + void* UDPHeaderInStart, + void* UDPHeaderOutStart); + +#endif + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.c b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.c new file mode 100644 index 0000000000..43558c2f5c --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.c @@ -0,0 +1,203 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Simple webserver application for demonstrating the RNDIS demo and TCP/IP stack. This + * application will serve up a static HTTP web page when requested by the host. + */ + +#include "Webserver.h" + +/** HTTP server response header, for transmission before the page contents. This indicates to the host that a page exists at the + * given location, and gives extra connection information. + */ +const char HTTP200Header[] PROGMEM = "HTTP/1.1 200 OK\r\n" + "Server: LUFA RNDIS\r\n" + "Content-type: text/html\r\n" + "Connection: close\r\n\r\n"; + +/** HTTP server response header, for transmission before a resource not found error. This indicates to the host that the given + * given URL is invalid, and gives extra error information. + */ +const char HTTP404Header[] PROGMEM = "HTTP/1.1 404 Not Found\r\n" + "Server: LUFA RNDIS\r\n" + "Connection: close\r\n\r\n"; + +/** HTTP page to serve to the host when a HTTP request is made. This page is too long for a single response, thus it is automatically + * broken up into smaller blocks and sent as a series of packets each time the webserver application callback is run. + */ +const char HTTPPage[] PROGMEM = + "" + " " + " " + " LUFA Webserver Demo" + " " + " " + " " + "

Hello from your USB AVR!

" + "

" + " Hello! Welcome to the LUFA RNDIS Demo Webserver test page, running on your USB AVR via the LUFA library. This demonstrates the HTTP webserver, TCP/IP stack and RNDIS demo all running atop the LUFA USB stack." + "

" + " Project Information: http://www.lufa-lib.org." + "

" + " LUFA Version: " LUFA_VERSION_STRING + "

" + " " + ""; + + +/** Initializes the Webserver application, opening the appropriate HTTP port in the TCP handler and registering the application + * callback routine for packets sent to the HTTP protocol port. + */ +void Webserver_Init(void) +{ + /* Open the HTTP port in the TCP protocol so that HTTP connections to the device can be established */ + TCP_SetPortState(TCP_PORT_HTTP, TCP_Port_Open, Webserver_ApplicationCallback); +} + +/** Indicates if a given request equals the given HTTP command. + * + * \param[in] RequestHeader HTTP request made by the host + * \param[in] Command HTTP command to compare the request to + * + * \return Boolean \c true if the command matches the request, \c false otherwise + */ +static bool IsHTTPCommand(uint8_t* RequestHeader, + char* Command) +{ + /* Returns true if the non null terminated string in RequestHeader matches the null terminated string Command */ + return (strncmp((char*)RequestHeader, Command, strlen(Command)) == 0); +} + +/** Application callback routine, executed each time the TCP processing task runs. This callback determines what request + * has been made (if any), and serves up appropriate responses. + * + * \param[in] ConnectionState Pointer to a TCP Connection State structure giving connection information + * \param[in,out] Buffer Pointer to the application's send/receive packet buffer + */ +void Webserver_ApplicationCallback(TCP_ConnectionState_t* const ConnectionState, + TCP_ConnectionBuffer_t* const Buffer) +{ + char* BufferDataStr = (char*)Buffer->Data; + static uint8_t PageBlock = 0; + + /* Check to see if a packet has been received on the HTTP port from a remote host */ + if (TCP_APP_HAS_RECEIVED_PACKET(Buffer)) + { + if (IsHTTPCommand(Buffer->Data, "GET")) + { + if (IsHTTPCommand(Buffer->Data, "GET / ")) + { + PageBlock = 0; + + /* Copy the HTTP 200 response header into the packet buffer */ + strcpy_P(BufferDataStr, HTTP200Header); + + /* Send the buffer contents to the host */ + TCP_APP_SEND_BUFFER(Buffer, strlen(BufferDataStr)); + + /* Lock the buffer to Device->Host transmissions only while we send the page contents */ + TCP_APP_CAPTURE_BUFFER(Buffer); + } + else + { + /* Copy the HTTP 404 response header into the packet buffer */ + strcpy_P(BufferDataStr, HTTP404Header); + + /* Send the buffer contents to the host */ + TCP_APP_SEND_BUFFER(Buffer, strlen(BufferDataStr)); + + /* All data sent, close the connection */ + TCP_APP_CLOSECONNECTION(ConnectionState); + } + } + else if (IsHTTPCommand(Buffer->Data, "HEAD")) + { + if (IsHTTPCommand(Buffer->Data, "HEAD / ")) + { + /* Copy the HTTP response header into the packet buffer */ + strcpy_P(BufferDataStr, HTTP200Header); + + /* Send the buffer contents to the host */ + TCP_APP_SEND_BUFFER(Buffer, strlen(BufferDataStr)); + } + else + { + /* Copy the HTTP response header into the packet buffer */ + strcpy_P(BufferDataStr, HTTP404Header); + + /* Send the buffer contents to the host */ + TCP_APP_SEND_BUFFER(Buffer, strlen(BufferDataStr)); + } + + /* All data sent, close the connection */ + TCP_APP_CLOSECONNECTION(ConnectionState); + } + else if (IsHTTPCommand(Buffer->Data, "TRACE")) + { + /* Echo the host's query back to the host */ + TCP_APP_SEND_BUFFER(Buffer, Buffer->Length); + + /* All data sent, close the connection */ + TCP_APP_CLOSECONNECTION(ConnectionState); + } + else + { + /* Unknown request, just clear the buffer (drop the packet) */ + TCP_APP_CLEAR_BUFFER(Buffer); + } + } + else if (TCP_APP_HAVE_CAPTURED_BUFFER(Buffer)) + { + uint16_t RemLength = strlen_P(&HTTPPage[PageBlock * HTTP_REPLY_BLOCK_SIZE]); + uint16_t Length; + + /* Determine the length of the loaded block */ + Length = ((RemLength > HTTP_REPLY_BLOCK_SIZE) ? HTTP_REPLY_BLOCK_SIZE : RemLength); + + /* Copy the next buffer sized block of the page to the packet buffer */ + strncpy_P(BufferDataStr, &HTTPPage[PageBlock * HTTP_REPLY_BLOCK_SIZE], Length); + + /* Send the buffer contents to the host */ + TCP_APP_SEND_BUFFER(Buffer, Length); + + /* Check to see if the entire page has been sent */ + if (PageBlock++ == (sizeof(HTTPPage) / HTTP_REPLY_BLOCK_SIZE)) + { + /* Unlock the buffer so that the host can fill it with future packets */ + TCP_APP_RELEASE_BUFFER(Buffer); + + /* Close the connection to the host */ + TCP_APP_CLOSECONNECTION(ConnectionState); + } + } +} + diff --git a/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.h b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.h new file mode 100644 index 0000000000..142dc7a039 --- /dev/null +++ b/protocol/lufa/LUFA-git/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.h @@ -0,0 +1,57 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 + * + * Header file for Webserver.c. + */ + +#ifndef _WEBSERVER_H_ +#define _WEBSERVER_H_ + + /* Includes: */ + #include + #include + + #include + + #include "TCP.h" + + /* Macros: */ + /** Maximum size of a HTTP response per transmission */ + #define HTTP_REPLY_BLOCK_SIZE 128 + + /* Function Prototypes: */ + void Webserver_Init(void); + void Webserver_ApplicationCallback(TCP_ConnectionState_t* const ConnectionState, + TCP_ConnectionBuffer_t* const Buffer); + +#endif + -- cgit v1.2.3