125 lines
4.0 KiB
C
125 lines
4.0 KiB
C
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/*
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* This file provides the typedefs and constants for the TFTP server and Distress Beacon implimentation
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*/
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#ifndef __RCVR_H__
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#define __RCVR_H__
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#include <common.h>
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#include <command.h>
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#include <net.h>
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#if (CONFIG_COMMANDS & CFG_CMD_RCVR)
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/********************************************************************************************************************/
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/* DISTRESS BEACON DEFINITIONS */
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/********************************************************************************************************************/
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#define BEACON_UDP_PORT 3583 /* Destination UDP Port to broadcast the distress beacon to */
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#define RECOVERY_MODE 0xDE /* packet_type values/signatures */
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#define RECOVERY_STATE_FIRST 0x00001 /* First stage for loading the initrd */
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#define RECOVERY_STATE_SECOND 0x00002 /* Second stage for loading the firmware.bin - not used in UBoot */
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#define BEACON_VERSION 1 /* Current version of the Beacon Packet */
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#define LL_ADDR_LEN 6 /* Length of a link level address (in bytes) */
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#define IP_ADDR_LEN 4 /* Length of IP address in bytes */
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#define MAX_NAME_LEN 16 /* Length of name (NetBIOS) */
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#define MAX_MODEL_NUMBER_LEN 50 /* Length of model Number */
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#pragma pack (1)
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/* LinkLevelAddrStruct - Defines the structure of a link level address */
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typedef struct
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{
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uchar LinkLevelAddr[LL_ADDR_LEN];
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} LinkLevelAddrStruct;
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/* IPAddrStruct - Defines the structure of an IP address */
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typedef struct
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{
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ulong IPAddress;
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} IPAddressStruct;
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/* PacketHeaderStruct - Defines the structure of the beacon packet header
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* - 16-bit value that specifies teh type of packet, (RECOVERY_MODE)
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* - 8-bit version of packet for future extension
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*/
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typedef struct
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{
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uchar PacketType;
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uchar Version;
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}PacketHeaderStruct;
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/* DistressBeaconPayloadStruct - Defines the structure of the beacon packet payload
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* - 4 bytes IP address of the NAS in distress
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* - 6 bytes LL address of the NAS in distress
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* - 16 bytes string with the name of the NAS in distress
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* - 50 bytes string with the NAS Model number
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*/
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typedef struct
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{
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ushort State;
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IPAddressStruct IPAddr;
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LinkLevelAddrStruct LinkAddr;
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uchar Name[MAX_NAME_LEN];
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uchar ModelNumber[MAX_MODEL_NUMBER_LEN];
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}DistressBeaconPayloadStruct;
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/* DistressBeaconPacketStruct - The structure with both the header and payload */
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typedef struct
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{
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PacketHeaderStruct Header;
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DistressBeaconPayloadStruct Payload;
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}DistressBeaconPacketStruct;
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#pragma pack ()
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/********************************************************************************************************************/
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/* RECOVERY DEFINITIONS */
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/********************************************************************************************************************/
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#define RCVR_BEACON_TIMEOUT 5 /* timeout in seconds between Distress Beacon */
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#define RCVR_DATA_TIMEOUT 6 /* timeout in seconds to receive a data packet */
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#define RCVR_FINISH_TIMEOUT 2 /* timeout in seconds to verify that the client received the last ACK */
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/* Recovery States */
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typedef enum
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{
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RCVR_INIT,
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RCVR_WAIT_4_CNCT,
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RCVR_IMAGE_DWNLD,
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RCVR_FINISHED
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}rcvr_state_t;
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/* Function Prototypes */
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void RecoverRequest(void);
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/********************************************************************************************************************/
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/* TFTP SERVER DEFINITIONS */
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/********************************************************************************************************************/
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/* TFTP ports */
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#define TFTP_SERVER_PORT 69
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/* Length of the opcode field */
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#define TFTP_OPCODE_LEN 2
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/* All possible TFTP opcodes */
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#define TFTP_OPCODE_RRQ 0x0001
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#define TFTP_OPCODE_WRQ 0x0002
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#define TFTP_OPCODE_DATA 0x0003
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#define TFTP_OPCODE_ACK 0x0004
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#define TFTP_OPCODE_ERR 0x0005
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/* TFTP error codes supported */
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#define TFTP_ERROR_UNDEFINED 0
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#define TFTP_ERROR_ILLEGAL_OPERATION 4
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/* MAX size of TFTP DATA */
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#define TFTP_MAX_DATA_LEN 512
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#endif /* #if (CONFIG_COMMANDS & CFG_CMD_RCVR) */
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#endif /* __RCVR_H__ */
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