CN115442267B - ICMP method based on ARINC664 protocol - Google Patents
ICMP method based on ARINC664 protocol Download PDFInfo
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- CN115442267B CN115442267B CN202211001812.9A CN202211001812A CN115442267B CN 115442267 B CN115442267 B CN 115442267B CN 202211001812 A CN202211001812 A CN 202211001812A CN 115442267 B CN115442267 B CN 115442267B
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- 230000005540 biological transmission Effects 0.000 claims description 21
- 238000010276 construction Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000004883 computer application Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/4028—Bus for use in transportation systems the transportation system being an aircraft
Abstract
The invention relates to an ICMP method based on ARINC664 protocol. The invention comprises the following steps: 1) An implementation of sending an ICMP request message; 2) And receiving response processing of the ICMP message. Aiming at the reliability and safety requirements of the AFDX bus network, the invention manages the network state information by the ICMP method, can meet various requirements of AFDX terminal communication and bus testing, and effectively improves the testing guarantee capability of the new generation aviation data bus.
Description
Technical Field
The invention belongs to the computer application technology, and particularly relates to an ICMP method based on ARINC664 protocol.
Background
ICMP is a sub-protocol of TCP/IP protocol cluster, which has extremely important significance for network security, and is mainly used for transferring control information between a host and a router, including reporting error information, exchanging restricted control and network status information, etc. These control messages do not transmit user data, but play an important role in the transfer of user data, ensuring the security and reliability of network data.
Avionics full duplex switched Ethernet (AFDX) refers to the mature technology of commercial Ethernet, meets the requirements of network transmission delay certainty, safety, reliability and maintainability of an airborne avionics system, and is successfully applied to large airliners and transport planes. As the AFDX bus technology is increasingly applied to the field of airborne data buses, test guarantee for airborne equipment of the AFDX bus is also increasingly important.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides an ICMP method based on ARINC664 protocol, and provides a test method for solving the problem of uncertain connection state of system equipment in an AFDX bus network.
The technical scheme of the invention is as follows: the invention relates to an ICMP method based on ARINC664 protocol, which is characterized in that: the method comprises the following steps:
1) An implementation of sending an ICMP request message;
2) And receiving response processing of the ICMP message.
Further, the specific steps of step 1) are as follows:
1.1 Acquiring ICMP request message configuration information;
1.2 -constructing an ICMP request message package;
1.3 After the check message is successful, the ICMP message is sent.
Further, the specific steps of step 1.1) are as follows:
1.1.1 The end system obtains the destination IP, the data load address and the data length of the ICMP frame from the PCI Target0 register;
1.1.2 Waiting to acquire the free bitmap Fn.
Further, the specific steps of step 1.2) are as follows:
1.2.1 Carrying ICMP data to be sent to a corresponding address of a DPRAM to be sent through DMA on PCI, and carrying the ICMP data to be sent to an on-chip SDRAM;
1.2.2 Acquiring a virtual link used for transmission from the ICMP configuration table, and filling in an MAC frame header according to the number, the edge, the domain and the position of the virtual link;
1.2.3 Filling in IP frame header according to local IP and destination IP, filling in ICMP domain type 0x8 and code 0x0, and completing frame header construction.
Further, the specific steps of step 1.3) are as follows:
1.3.1 The end system carries out check operation on the IP header and the ICMP header in the ICMP message, saves the operation result to the IP frame header check bit and the ICMP frame header check bit, and writes the data packet into the sending buffer area;
1.3.2 A transmit VLFIFO register is configured to complete the data transmission.
Further, the specific steps of step 2) are as follows:
2.1 CRC check is carried out on the received message frame header and the message load;
2.2 Searching the replied virtual link from the ICMP configuration table according to the ICMP frame header information;
2.3 An ICMP reply packet is constructed and transmission is completed.
Further, the specific steps of step 2.1) are as follows:
2.1.1 After receiving ICMP message, the end system stores the frame header and message data to SDRAM in the chip;
2.1.2 An ICMP frame check function is invoked to CRC check the frame header and the data payload.
Further, the specific steps of step 2.2) are as follows:
2.2.1 Obtaining the message type from the received message frame header, wherein the received message type is 0x8, and the destination IP in the received message frame header is the local IP;
2.2.2 Searching ICMP configuration with the destination IP address equal to the source IP address in the received frame header in the ICMP configuration table, acquiring the replied virtual link, and searching the received idle bitmap Fn.
Further, the specific steps of step 2.3) are as follows:
2.3.1 An ICMP response packet is constructed, wherein the destination MAC address is a source MAC address in a receiving frame header, the destination IP address is a source IP address in the receiving frame header, the virtual link is a found virtual link, the type in the ICMP domain is filled with 0x0, and the code is filled with 0x0;
2.3.2 Acquiring a transmission message buffer address according to the FN number, storing received data into a transmission buffer area, and calculating an IP header checksum and an ICMP header checksum;
2.3.3 And (3) saving the operation result to the IP frame header check bit and the ICMP frame header check bit, and configuring a virtual link to send out the response packet.
Further, the transmission idle bitmap in step 1.1) represents an idle state for transmitting the DPRAM; dividing the whole transmitting DPRAM into a storage unit, wherein a bit corresponding to a bitmap register is 1 to indicate that the storage unit of the block is occupied, and a bit corresponding to a bitmap register is 0 to indicate that the storage unit is idle; when data is to be sent, the ARM reads the bitmap register to find out an idle storage unit, and writes the data to be sent into the idle storage unit, and then the ARM reads the corresponding position 1 of the bitmap register; ARM does not work with bitmap register write 0; after the data is sent, the sending controller clears the corresponding bit of the bitmap register; the receiving free bitmap Fn in the step 2.2) is used to flag the storage states of the header DPRAM and the payload DPRAM, and provides the addresses of the header DPRAM and the payload DPRAM for the MAC receiving module.
The ICMP method based on ARINC664 protocol provided by the invention is realized by sending ICMP request message; and the response processing of the ICMP message is received to manage the network state information, so that the requirement of the AFDX bus network on the system reliability is met. Therefore, the invention manages the network state information by ICMP method aiming at the reliability and safety requirements of the AFDX bus network, can meet various requirements of AFDX terminal communication and bus test, and effectively improves the test guarantee capability of the new generation aviation data bus.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to specific embodiments.
The invention provides an ICMP method based on ARINC664 protocol, which comprises the following specific steps:
1) An implementation of sending an ICMP request message;
1.1 Acquiring ICMP request message configuration information;
1.1.1 The end system obtains the destination IP, the data load address and the data length of the ICMP frame from the PCI Target0 register;
1.1.2 Waiting to acquire the free bitmap Fn;
the transmit idle bitmap indicates an idle state used to indicate the transmit DPRAM; dividing the whole transmitting DPRAM into a storage unit, wherein a bit corresponding to a bitmap register is 1 to indicate that the storage unit of the block is occupied, and a bit corresponding to a bitmap register is 0 to indicate that the storage unit is idle; when data is to be sent, the ARM reads the bitmap register to find out an idle storage unit, and writes the data to be sent into the idle storage unit, and then the ARM reads the corresponding position 1 of the bitmap register; ARM does not work with bitmap register write 0; after the data is sent, the sending controller clears the corresponding bit of the bitmap register;
1.2 -constructing an ICMP request message package;
1.2.1 Carrying ICMP data to be sent to a corresponding address of a DPRAM to be sent through DMA on PCI, and carrying the ICMP data to be sent to an on-chip SDRAM;
1.2.2 Acquiring a virtual link used for transmission from the ICMP configuration table, and filling in an MAC frame header according to the number, the edge, the domain and the position of the virtual link;
1.2.3 Filling in an IP frame head according to the local IP and the destination IP, filling in an ICMP domain with the type of 0x8 and the code of 0x0, and completing the frame head construction;
1.3 After the check message is successful, the ICMP message is sent.
1.3.1 The end system carries out check operation on the IP header and the ICMP header in the ICMP message, saves the operation result to the IP frame header check bit and the ICMP frame header check bit, and writes the data packet into the sending buffer area;
1.3.2 A transmission VLFIFO register is configured to complete data transmission;
2) And receiving response processing of the ICMP message.
2.1 CRC check is carried out on the received message frame header and the message load;
2.1.1 After receiving ICMP message, the end system stores the frame header and message data to SDRAM in the chip;
2.1.2 Calling ICMP frame check function to perform CRC check on the frame header and the data load;
2.2 Searching the replied virtual link from the ICMP configuration table according to the ICMP frame header information;
2.2.1 Obtaining the message type from the received message frame header, wherein the received message type is 0x8, and the destination IP in the received message frame header is the local IP;
2.2.2 Searching ICMP configuration with the destination IP address equal to the source IP address in the received frame header in the ICMP configuration table, obtaining a replied virtual link, and searching a received idle bitmap Fn;
the received free bitmap Fn is used to flag the storage states of the header DPRAM and the payload DPRAM, and provides the addresses of the header DPRAM and the payload DPRAM for the MAC receiving module.
2.3 An ICMP reply packet is constructed and transmission is completed.
2.3.1 An ICMP response packet is constructed, wherein the destination MAC address is a source MAC address in a receiving frame header, the destination IP address is a source IP address in the receiving frame header, the virtual link is a found virtual link, the type in the ICMP domain is filled with 0x0, and the code is filled with 0x0;
2.3.2 Acquiring a transmission message buffer address according to the FN number, storing received data into a transmission buffer area, and calculating an IP header checksum and an ICMP header checksum;
2.3.3 And (3) saving the operation result to the IP frame header check bit and the ICMP frame header check bit, and configuring a virtual link to send out the response packet.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. An ICMP method based on ARINC664 protocol, which is characterized in that: the method comprises the following steps:
1) An implementation of sending an ICMP request message;
1.1 Acquiring ICMP request message configuration information;
1.1.1 The end system obtains the destination IP, the data load address and the data length of the ICMP frame from the PCI Target0 register;
1.1.2 Waiting to acquire the free bitmap Fn;
1.2 -constructing an ICMP request message package;
1.2.1 Carrying ICMP data to be sent to a corresponding address of a DPRAM to be sent through DMA on PCI, and carrying the ICMP data to be sent to an on-chip SDRAM;
1.2.2 Acquiring a virtual link used for transmission from the ICMP configuration table, and filling in an MAC frame header according to the number, the edge, the domain and the position of the virtual link;
1.2.3 Filling in an IP frame head according to the local IP and the destination IP, filling in an ICMP domain with the type of 0x8 and the code of 0x0, and completing the frame head construction;
1.3 After the check message is successful, ICMP message is sent;
1.3.1 The end system carries out check operation on the IP header and the ICMP header in the ICMP message, saves the operation result to the IP frame header check bit and the ICMP frame header check bit, and writes the data packet into the sending buffer area;
1.3.2 A transmission VLFIFO register is configured to complete data transmission;
2) Receiving a response process of the ICMP message;
2.1 CRC check is carried out on the received message frame header and the message load;
2.1.1 After receiving ICMP message, the end system stores the frame header and message data to SDRAM in the chip;
2.1.2 Calling ICMP frame check function to perform CRC check on the frame header and the data load;
2.2 Searching the replied virtual link from the ICMP configuration table according to the ICMP frame header information;
2.2.1 Obtaining the message type from the received message frame header, wherein the received message type is 0x8, and the destination IP in the received message frame header is the local IP;
2.2.2 Searching ICMP configuration with the destination IP address equal to the source IP address in the received frame header in the ICMP configuration table, obtaining a replied virtual link, and searching a received idle bitmap Fn;
2.3 Constructing an ICMP response packet and completing transmission;
2.3.1 An ICMP response packet is constructed, wherein the destination MAC address is a source MAC address in a receiving frame header, the destination IP address is a source IP address in the receiving frame header, the virtual link is a found virtual link, the type in the ICMP domain is filled with 0x0, and the code is filled with 0x0;
2.3.2 Acquiring a transmission message buffer address according to the FN number, storing received data into a transmission buffer area, and calculating an IP header checksum and an ICMP header checksum;
2.3.3 And (3) saving the operation result to the IP frame header check bit and the ICMP frame header check bit, and configuring a virtual link to send out the response packet.
2. The ARINC664 protocol based ICMP method according to claim 1, wherein: the transmission idle bitmap in the step 1.1) represents an idle state for representing transmission of the DPRAM; dividing the whole transmitting DPRAM into a storage unit, wherein a bit corresponding to a bitmap register is 1 to indicate that the storage unit of the block is occupied, and a bit corresponding to a bitmap register is 0 to indicate that the storage unit is idle; when data is to be sent, the ARM reads the bitmap register to find out an idle storage unit, and writes the data to be sent into the idle storage unit, and then the ARM reads the corresponding position 1 of the bitmap register; ARM does not work with bitmap register write 0; after the data is sent, the sending controller clears the corresponding bit of the bitmap register; the receiving free bitmap Fn in the step 2.2) is used to flag the storage states of the header DPRAM and the payload DPRAM, and provides the addresses of the header DPRAM and the payload DPRAM for the MAC receiving module.
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| CN202211001812.9A CN115442267B (en) | 2022-08-20 | 2022-08-20 | ICMP method based on ARINC664 protocol |
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| CN202211001812.9A CN115442267B (en) | 2022-08-20 | 2022-08-20 | ICMP method based on ARINC664 protocol |
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Citations (4)
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|---|---|---|---|---|
| JPH0736805A (en) * | 1993-07-19 | 1995-02-07 | Hitachi Ltd | Receiving frame data processing system |
| CN106534168A (en) * | 2016-12-06 | 2017-03-22 | 中国电子科技集团公司第三十二研究所 | TCPIP protocol stack safety processing system based on FPGA |
| CN110109852A (en) * | 2019-04-03 | 2019-08-09 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | System and method for realizing TCP _ IP protocol by hardware |
| CN114489840A (en) * | 2022-01-14 | 2022-05-13 | 南京邮电大学 | TCP/IP hardware unloading system based on FPGA and implementation method thereof |
-
2022
- 2022-08-20 CN CN202211001812.9A patent/CN115442267B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0736805A (en) * | 1993-07-19 | 1995-02-07 | Hitachi Ltd | Receiving frame data processing system |
| CN106534168A (en) * | 2016-12-06 | 2017-03-22 | 中国电子科技集团公司第三十二研究所 | TCPIP protocol stack safety processing system based on FPGA |
| CN110109852A (en) * | 2019-04-03 | 2019-08-09 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | System and method for realizing TCP _ IP protocol by hardware |
| CN114489840A (en) * | 2022-01-14 | 2022-05-13 | 南京邮电大学 | TCP/IP hardware unloading system based on FPGA and implementation method thereof |
Non-Patent Citations (1)
| Title |
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| 基于FPGA的AFDX端系统协议芯片的设计与实现;张志;翟正军;姚方圆;;计算机测量与控制(第02期);全文 * |
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