TWI672023B - Network packet processing method and device thereof - Google Patents

Abstract

A network packet processing method, wherein a network packet includes a plurality of bytes, a byte type includes a header type, an application type, and a check type, and a network packet processing method includes: receiving all of the files belonging to the header type Bytes; and receiving and parsing partial bytes belonging to the application category according to the setting information until receiving a specified byte belonging to the application category.

Description

Network packet processing method and device

The present disclosure relates to a network packet processing method and device, and more particularly to a network packet processing method and device for real-time processing of network packets.

A layered structure is commonly used in network communication protocols. Therefore, network packets need to be disassembled layer by layer to obtain the data in the network packets. Under normal circumstances, it is usually after the entire network packet is received and the received network packet is confirmed to be a valid network packet before the data in the network packet is parsed to further use the parsed data .

In order to explain the foregoing concepts more clearly, we must first explain the structure of network packets. Please refer to FIG. 1, which is a schematic diagram of a network packet NP. The network packet NP includes a plurality of bytes 0-9, and the categories of bytes 0-9 include a header type HT, an application type AT, and a check type TT. The categories of byte 0 and byte 1 belong to The header category HT, the bytes 2 to 7 belong to the application category AT, and the bytes 8 to 9 belong to the inspection category TT. It should be noted that the network packet NP structure shown in Figure 1 is only an example and is not intended to be a limitation.

When parsing the data of bytes 2 to 7 belonging to the application category AT in the network packet NP, usually wait until the entire network packet NP is received, that is, to sequentially receive the bytes 0 and bits belonging to the header category HT. After byte 1, bytes 2 to 7 belonging to the application category AT, and bytes 8 and 9 belonging to the inspection category TT, the network packet NP is determined by a checksum mechanism. Integrity cannot begin until complete.

However, disassembling network packets will take a lot of processing time. In certain cases (for example, when data needs to be parsed in a very short time), it will be delayed until subsequent processing of network packet data, resulting in processing time delay And other issues.

The first aspect of this case is to provide a network packet processing method, in which a network packet includes a plurality of bytes, and a byte type includes a header type, an application type, and an inspection type, and a network packet processing method. Including: receiving all bytes belonging to the file header category; and receiving and parsing some bytes belonging to the application category according to the setting information until a specified byte belonging to the application category is received.

The second aspect of the case is to provide a network packet processing device electrically connected to the server, wherein the network packet includes a plurality of bytes, and the type of the bytes includes a header type, an application type, and an inspection type. , A network packet processing device, including: a receiving unit and a parsing unit. The receiving unit is used to receive network packets; and the parsing unit is electrically connected to the receiving unit to receive all the bytes belonging to the header category through the receiving unit. And receiving and parsing partial bytes belonging to the application category according to the setting information until receiving a specified byte belonging to the application category.

The network packet processing method and device disclosed in this disclosure mainly use the hardware architecture of the embedded system, which can disassemble the packet while receiving the packet, to obtain the data in the packet, and to pre-parse the packet to reduce the analysis time. efficacy.

1‧‧‧Financial transaction system

200‧‧‧ network packet processing device

300‧‧‧ Exchange

310‧‧‧Quote Server

320‧‧‧Transaction Server

110, 210‧‧‧ receiving unit

130, 230‧‧‧ Resolution Unit

250‧‧‧ Transmission Unit

HT‧‧‧ Stall Category

AT‧‧‧Application Category

TT‧‧‧Inspection category

NP‧‧‧Network Packet

DB‧‧‧designated byte

OD‧‧‧Order

S110 ~ S130, S210 ~ S270‧‧‧step

In order to make the above and other purposes, features, advantages, and embodiments of the disclosure document more comprehensible, the description of the attached drawings is as follows: FIG. 1 is a schematic diagram of a network packet; FIG. 3 is a flowchart of a network packet processing method according to an embodiment of the present disclosure; FIG. 4 is a schematic diagram of a financial transaction system according to an embodiment of the present disclosure; 5 is a schematic diagram of a network packet processing device applied to financial transactions according to an embodiment of the present disclosure; and FIG. 6 is a flowchart of a network packet processing method applied to financial transactions according to an embodiment of the present disclosure. .

Hereinafter, embodiments of the present invention will be described with reference to related drawings. In the drawings, the same reference numerals represent the same or similar elements or method flows.

See Figures 1 to 3. FIG. 2 is a schematic diagram of a network packet processing apparatus according to an embodiment of the present disclosure, and FIG. 3 is a flowchart of a network packet processing method according to an embodiment of the present disclosure. In this embodiment, the network packet processing device 100 shown in FIG. 2 can be used to perform real-time processing on the network packet NP shown in FIG. 1 according to the steps described in the network packet processing method shown in FIG. 3. Disassembly.

First, the configuration of the network packet processing apparatus 100 will be described. As shown in FIG. 2, the network packet processing device 100 includes a receiving unit 110 and an analysis unit 130. The receiving unit 110 is electrically connected to the parsing unit 130. The receiving unit 110 is used to receive the network packet NP. The parsing unit 130 is used to receive and parse the bytes 0-9 in the network packet NP through the receiving unit 110. In various embodiments of the present invention, the network packet processing device 100 may be implemented using a Field Programmable Gate Array (FPGA), or other forms of embedded system boards.

Next, an example in which the network packet processing method shown in FIG. 3 is applied to the network packet processing device 100 to disassemble the network packet NP shown in FIG. 1 will be described.

As shown in FIG. 3, the network packet processing method includes steps S110 and S130.

In step S110, all bytes belonging to the header category are received.

In an embodiment, the parsing unit 130 is configured to receive all the bytes belonging to the file header type HT through the receiving unit 110, that is, the received byte 0 And byte 1.

In step S130, the partial bytes belonging to the application category are received and analyzed according to the setting information until a specified byte belonging to the application category is received.

In one embodiment, it is assumed that the specified byte DB has been selected as the byte 5 belonging to the application category AT according to the setting information. Wherein, the setting information is that when the position of the designated byte DB conforms to a pre-designed value, for example, the position of byte 5 which is known to belong to the application category AT is five count values, so in order to select byte 5 as the designated bit For the tuple DB, the pre-designed value can be set to five to achieve the purpose. In addition, the selection basis of the designated byte DB is determined according to requirements. For example, the data that the user cares about is located in the byte 5. After the specified byte DB is selected as the byte 5 belonging to the application category AT, the parsing unit 130 will receive and parse the byte 2, byte 3, and bit belonging to the application HT through the receiving unit 110 according to the setting information. Tuple 4 and Bit 5.

It should be noted that the “receiving and parsing” mentioned above means that when the parsing unit 130 receives a byte through the receiving unit 110, it will parse the received byte at the same time. For example, when parsing unit 130 receives byte 2 through receiving unit 110, it will parse byte 2 at the same time; when parsing unit 130 receives byte 3 through receiving unit 110, it will parse byte 3 at the same time; And so on. Therefore, the data of the bytes belonging to the application type AT can be parsed in advance without receiving the entire network packet.

Next, a network packet processing apparatus 200 and a network packet processing method that are similar to the aforementioned network packet processing apparatus 100 will be further described. Example applied to financial transactions.

Please refer to Figure 1, Figure 4 to Figure 6. FIG. 4 is a schematic diagram of a financial transaction system according to an embodiment of the present disclosure. FIG. 5 is a schematic diagram of a network packet processing device applied to financial transactions according to an embodiment of the present disclosure. FIG. A flowchart of a network packet processing method applied to financial transactions according to an embodiment of the document.

First, the configurations of the financial transaction system 1 and the network packet processing device 200 will be described. As shown in FIG. 4, the financial transaction system 1 includes a network packet processing device 200, a market server 310 and a transaction server 320 provided in the exchange 300, and the network packet processing device 200 and the market server 310 And the transaction server 320 is electrically connected.

As shown in FIG. 5, the network packet processing device 200 includes a receiving unit 210, a parsing unit 230, and a transmitting unit 250. The receiving unit 210, the parsing unit 230, and the transmitting unit 250 are electrically connected in sequence. The receiving unit 210 is used to receive the network packet NP, and the parsing unit 230 is used to receive and parse the byte 0 in the network packet NP through the receiving unit 210. ~ 9. The transmitting unit 250 is configured to transmit the order OD according to the packet determination signal DS. In various embodiments of the present invention, the network packet processing device 200 may be implemented using a Field Programmable Gate Array (FPGA), or other forms of embedded system boards.

Next, an example in which the network packet processing method shown in FIG. 6 is applied to the financial transaction system 1 to perform financial transactions will be described.

As shown in FIG. 6, the network packet processing method includes steps S210, S230, S250, S260, and S270. Since steps S210 and S230 are similar to steps S110 and S130 in FIG. 3, respectively, they are not described in detail.

After step S230, steps S250 and S260 will be entered, that is, steps S250 and S260 may be performed simultaneously.

In step S250, an order is generated based on parsing the received at least part of the data belonging to the application class and the specified byte.

In an embodiment, it is assumed that the data that the user cares about (for example, the best fifth gear or the transaction price) is respectively located in byte 2, byte 3, and byte 5 (the designated byte DB), where The location of the information that the person cares about can be known in advance. After the position of the data the user cares about is known, the parsing unit 230 will generate an order based on the data of byte 2, byte 3, and byte 5, where the content of the order may be higher than the transaction price Buy one at a time. It should be noted that the content of the aforementioned user and the order form are for illustration only and are not intended as a limitation.

At the same time, in step S260, the remaining bytes belonging to the application category and all the bytes belonging to the inspection category are received.

In one embodiment, the parsing unit 230 receives the bytes 6 and 7 belonging to the application category AT, and the bytes 8 and 9 belonging to the inspection category through the receiving unit 210. In other words, in step, the network packet NP has been completely received.

After step S260, the process proceeds to step S270. In step S270, after using a checksum mechanism to determine that the integrity of the network packet is complete, a packet determination signal is generated.

In one embodiment, after the parsing unit 230 determines that the integrity of the network packet NP is complete through the checksum mechanism, it transmits the order OD obtained in step S250 to the transaction server 320 for order placement, where the school verifies the order. The checksum mechanism is the general knowledge of those with ordinary knowledge in the technical field to which it belongs, so it will not be repeated here.

In the case where the network packet processing device 200 and the network packet processing method are applied to financial transactions, it can be understood that, since steps S250 and S260 can be performed simultaneously, the time of financial transactions can be shortened. Is quite important.

In summary, the network packet processing method and device disclosed in this disclosure mainly use the hardware architecture of the embedded system, which can disassemble the packet while receiving the network packet to obtain the data in the network packet. After confirming that the content of the received network packet is correct, the network packet will be transmitted to the transaction server to achieve the effect of pre-analyzing the network packet to reduce the parsing time.

Certain terms are used in the description and the scope of patent applications to refer to specific elements. However, it should be understood by those with ordinary knowledge in the technical field that the same elements may be referred to by different names. The scope of the specification and patent application does not take the difference in names as a way to distinguish components, but rather uses the difference in functions of components as a basis for distinguishing. "Inclusion" mentioned in the specification and the scope of patent application is an open-ended term, so it should be interpreted as "including but not limited to".

In addition, unless otherwise specified in the description, the terms of any singular number also include the meaning of the plural number.

The above are only preferred embodiments of the present invention, and any equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (8)

A network packet processing method, wherein a network packet includes a plurality of bytes, and the types of the bytes include a header type, an application type, and a check type. The network packet processing method includes: receiving All bytes belonging to the profile category; and receiving and parsing partial bytes belonging to the application category according to a set of information until a specified byte belonging to the application category is received. The network packet processing method according to claim 1, which is used for a financial transaction, and the network packet is provided by a quote server, in which some bits belonging to the application category are received and parsed according to the setting information. After the group receives the specified byte belonging to the application category, the method further includes: generating an order based on parsing the received part of the byte belonging to the application category and at least a part of the specified byte data. . The network packet processing method according to claim 2, wherein after the step of receiving a partial byte belonging to the application category according to the setting information until receiving the specified byte belonging to the application category, the method further includes: receiving After the remaining bytes belonging to the application category and all the bytes belonging to the checking category; and using a checksum mechanism to determine the integrity of the network packet, the order is transmitted to a transaction Server to place an order. The method for processing a network packet according to claim 1, wherein the setting information is when a position of the designated byte matches a pre-designed value. A network packet processing device, wherein a network packet includes a plurality of bytes, and the types of the bytes include a header type, an application type, and an inspection type. The network packet processing device includes: A receiving unit for receiving the network packet; and a parsing unit electrically connected to the receiving unit for receiving all the bytes belonging to the profile category through the receiving unit, and receiving and Parse partial bytes belonging to the application category until a specified byte belonging to the application category is received. The network packet processing device according to claim 5, which is used for a financial transaction, and the receiving unit is electrically connected to a server providing the network packet, wherein the parsing unit belongs to the application according to the received An order is generated from the partial bytes of the category and at least a portion of the data in the specified byte. The network packet processing device according to claim 6, further comprising: a transmitting unit electrically connected to the parsing unit, for receiving a partial byte belonging to the application category at the parsing unit according to the setting information until After receiving the steps up to the specified byte belonging to the application category, the remaining bytes belonging to the application category and all the bytes belonging to the inspection category are received, and a checksum mechanism is used to determine After the integrity of the network packet is complete, the order is transmitted to a transaction server for order placement. The network packet processing device according to claim 5, wherein the setting information is when a position of the designated byte matches a pre-designed value.