CN104426873B - A kind of IP packet generation, sending method and system based on user demand - Google Patents

Abstract

The present invention proposes a method and system for generating and sending IP messages based on user requirements. The method is based on the three-layer IP layer and the two-layer driver of the OSI network model. The method includes: for user-specific service application requirements Modify the application-requirement mapping table; read the latest modified application-requirement mapping table, and receive the IP message sent by the three-layer IP layer, and set the service type field contained in the received IP message according to the newly modified application-requirement mapping table The set IP packet is sent to the two-layer driver for processing; wherein, the application-requirement mapping table includes: application name, protocol version, protocol type, port number and application requirement value. The invention discloses a method for users to set the application requirements of IP messages, which solves the problem of dynamically modifying the application requirements of IP messages in the process of business use, and at the same time solves the problem that most applications do not set application requirements in traditional socket programming. The method has the advantages of Adapt to the characteristics of individual needs of users.

Description

A method and system for generating and sending IP packets based on user requirements

technical field

The invention relates to the field of network technology, in particular to a method for setting application requirements of IP messages by users on a single host, and in particular to a method and system for generating and sending IP messages based on user requirements.

Background technique

No matter in IPv4 or IPv6, there are corresponding fields in the data message to describe the processing requirements of the message, such as the 8-bit Type of Service (TOS) field in the header of the IPv4 message, which is used to obtain more For good service, the first 3 digits represent the priority of the message, and the latter digits respectively represent requirements for lower delay, higher throughput, higher reliability, and lower routing cost, etc., and the corresponding digit is 1 That is, there is a corresponding requirement, and if it is 0, it is not required.

In traditional application programming, very few people operate IP packets directly. The usual method is to use socket programming, which specifies corresponding functions, such as bind, connect, sendto, sendmsg, etc. We found that in all socket functions and corresponding parameters and data structures, there is no means or method to set the service type. If the IP packet header is directly manipulated during application programming, the TOS field is usually fixed and cannot be changed during application use. In addition, when people use different applications, their experience requirements are different, so there is a need to dynamically modify fields such as TOS.

With the rapid development of network technology, the function of network equipment is becoming more and more powerful, and its ability to support QoS is getting stronger and stronger. Therefore, future network devices are required to support differentiated processing of application requirement settings in methods such as TOS.

Contents of the invention

The purpose of the present invention is to solve the problem of application requirements for users to dynamically set IP packets. The present invention proposes a method and system for generating and sending IP packets based on user requirements, so that users can dynamically set their IP packets when using application services. The TOS and other fields of the packet meet the service experience.

In order to achieve the above object, the present invention provides a method for generating and sending IP messages based on user needs, the method is based on three layers of IP layers and two-layer drivers of the OSI network model, and the method includes:

Step 101) is used to modify the application-requirement mapping table based on user-specific business application requirements;

Step 102) Read the newly modified application-requirement mapping table, and receive the IP message sent by the three-layer IP layer, and set the value of the service type field contained in the received IP message according to the newly modified application-requirement mapping table;

Step 103) Send the set IP packet to the layer-2 driver for processing;

Wherein, the application-requirement mapping table includes: application name, protocol version, protocol type, port number and application requirement value.

The above step 101) further comprises:

Step 101-1) is used to set the application-requirement mapping table, that is, add an entry in the application-requirement mapping table;

Step 101-2) is used to clear an existing entry in the application-requirement mapping table, that is, the user no longer needs specific processing of the application, and adopts the default processing method of IP packets;

Step 101-3) After the user sets a specific application-requirement item, notify the business application of the real-time operation driver of the application requirement message of the IP message, and read the latest application by the real-time operation driver of the application requirement message of the IP message of the service application - Requirements Mapping Table.

The above step 102) further includes:

Step 102-1) Receive the IP message sent by the three-layer IP layer to the lower layer, and use the application-requirement mapping table to determine whether the received IP message has a matching entry, and if so, enter the next step; otherwise, send the IP message directly For the second layer driver;

Step 102-2) Use the service type field in the matching entry and the corresponding field in the received IP message header to perform XOR operation to obtain the service type field to be inserted, and replace the received IP message with the service type field to be inserted Corresponding fields in the header of the file to obtain IP packets based on user requirements.

In order to realize the above method, the present invention also provides a system for generating and sending IP messages based on user needs, the method is based on the three-layer IP layer and the two-layer driver of the OSI network model, and it is characterized in that the system also includes:

An IP packet application requirement input module set at the application layer, which is used to complete the user's specific setting of a specific business application, that is, the user inputs the user's specific requirement for a certain application by modifying the application-requirement mapping table; and

The application requirements real-time operation driver layer of the service application IP message set between the three-layer IP layer and the two-layer driver, and the application requirement real-time operation drive layer of the service application IP message is used for:

Read the newly modified application-requirement mapping table, and receive the IP message sent by the three-layer IP layer, and set the value of the service type field contained in the received IP message according to the newly modified application-requirement mapping table; the set IP The message is sent to the Layer 2 driver for processing.

The real-time operation driver layer of the application requirements of the above-mentioned service application IP message further includes the following functional modules:

The receiving judgment module is used to receive the IP message sent by the three-layer IP layer to the lower layer, and use the application-requirement mapping table to determine whether the received IP message has a matching entry, and if so, enter the next step; otherwise, directly send the IP message Send to the second layer driver;

The IP message regeneration module is used to use the service type field in the matching table item and the corresponding field in the received IP message header to perform XOR operation to obtain the service type field to be inserted, and replace it with the service type field to be inserted corresponding fields in the header of the received IP message to obtain an IP message based on user requirements; and

The sending module is configured to send the IP packet generated by the IP packet regeneration module to the layer-2 driver for processing.

In a word, a kind of method that the user sets the application demand of IP message provided by the present invention, comprises: the user sets the application demand program of IP message, the application demand real-time operation driving of service application IP message, it is characterized in that, the specific method comprises: through The user sets the application requirement program of the IP packet and sets the application-requirement mapping table; triggers the real-time operation driver of the application requirement of the IP packet of the business application to read the latest application-requirement mapping table; the real-time operation driver of the application requirement of the IP packet of the business application receives it For IP packets, according to the application-requirement mapping table, implement the setting of the corresponding IP packet type of service (TOS) and other fields. The procedure for setting the application requirements of IP packets by the user is as follows: Human users use the man-machine interface to set the TOS and other fields of the IP packets corresponding to the business application. After setting, configure the TOS and other fields to the real-time operation driver of the application requirements (described below) The application-requirement mapping table, and notify the application of the real-time operation driver to read the latest mapping table. The real-time operation of the application requirements of business application IP packets is driven as follows: it refers to receiving packets at the IP layer, using the application-requirement mapping table to determine whether the received IP packets have matching entries, and if there are matching entries, use the matching entries The TOS and other fields in the IP packet are XORed with the corresponding fields in the IP packet header, and the result obtained replaces the corresponding fields in the IP packet header, and the checksum is calculated and rewritten at the same time; the modified packet is sent to the second-layer driver , and the subsequent process is handled by the two-layer driver.

Compared with the prior art, the present invention has the following advantages:

(1) Users can dynamically modify the application requirements of IP packets;

(2) Solve the problem that most applications do not set application requirements in traditional socket programming;

(3) It can adapt to the individual needs of users.

Description of drawings

Fig. 1 composition diagram of the application requirement method of user setting IP message provided by the present invention;

Fig. 2 schematic diagram of user setting IP message application requirement program provided by the present invention;

Fig. 3 is a real-time operation driving position diagram of application requirements of service application IP packets provided by the present invention.

Detailed ways

The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

The present invention provides a method for users to set application requirements for IP messages, which solves the problem of different application requirements for dynamically modifying IP messages in the course of business use, and at the same time solves the problem that most applications do not set application requirements in traditional socket programming. The method has the advantages of Adapt to the characteristics of individual needs of users.

In order to achieve the purpose of the above invention, a method for setting the application requirements of IP packets by users in the present invention includes: a program for setting application requirements of IP packets by users, and a real-time operation driver for application requirements of IP packets for business applications. The assumption of this method is that the network equipment supports the classification processing of fields such as TOS of the IP message. If it does not support it, the IP message application requirement setting is ineffective.

Among them, the user setting IP packet application requirements program refers to the human user using the man-machine interface to set the TOS and other fields of the IP packet corresponding to the business application. demand mapping table, and notify the application of the demand real-time operation driver to read the latest mapping table.

Among them, the application demand real-time operation driver of business application IP message refers to receiving the message of IP layer, using the application-requirement mapping table to determine whether the received IP message has a matching entry, and if there is a matching entry, use the matching entry The TOS and other fields in the IP packet are XORed with the corresponding fields in the IP packet header, and the result obtained replaces the corresponding fields in the IP packet header, and the checksum is calculated and rewritten at the same time; the modified packet is sent to the second-layer driver , and the subsequent process is handled by the two-layer driver.

Among them, the real-time operation driver for the application requirements of business application IP packets is located between the IP layer and the second layer. On the host, the IP layer sees a layer-2 driver, but for the actual network adapter, the driver is a layer-3 driver. program.

A method for user setting application requirements of IP packets provided by the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

Example

A method for setting application requirements of IP packets by a user will be described below in conjunction with accompanying drawings 1 , 2 and 3 . As shown in Figure 1, it is a composition diagram of the method for setting the application requirements of IP packets by the user. It is composed of the application requirements program for setting the IP packets by the user, the application-requirement mapping table, and the real-time operation drive of the application requirements of the IP packets for business applications. The demand mapping table is a shared data structure between the user setting IP message application demand program and the application demand real-time operation driver of the business application IP message, which stores the mapping table of application requirements, wherein each entry of the mapping table may include: Application name, protocol version, protocol type, port number, application requirement value (different according to different versions of IP). As shown in Figure 3, the real-time operation driver of the business application IP message uses the normal network programming method. First, the link between the original two-layer driver and the IP layer program is disconnected, and the real-time operation driver is inserted into the IP layer. Between the program and the second-layer driver, the place where the IP layer program originally calls the second-layer driver is changed to call the application-required real-time operation driver of the IP message of the business application. When the real-time operation driver calls the second-layer driver when sending a message, we only modify The outgoing link relationship of the message remains unchanged for the incoming link relationship. When the user starts setting, it is necessary to trigger the start of the user setting IP packet application requirement program. The schematic diagram of the pop-up interface of the program is shown in Figure 2, which can be set or cleared for specific applications. Other values except the application requirement value can be set through the normal The programming method is obtained without user input; after the user fills in the relevant values, click the Set/Clear button to set, and it can also be cleared according to the specific situation; the setting is to add an item in the application-requirement mapping table, Clearing is to clear an existing entry in the application-requirement mapping table, that is, the user no longer needs to perform specific processing on the application, and adopts the default processing mode of IP packets.

After the user sets a specific application-requirement item, the program immediately notifies the business application of the application-requirement packet real-time operation driver of the IP packet, which reads the latest application-requirement mapping table, so that the aforementioned IP packet matching method can be used to set Type of service (TOS) and other fields, and call the second-layer driver to complete the sending of the message.

Other content in the documentation can be technically implemented by ordinary technical personnel in this professional field, and will not be repeated here.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit them. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent replacements to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and all of them should be included in the scope of the present invention. within the scope of the claims.

Claims (5)

1. a kind of IP message generation based on user demand, sending method, this method is based on the three-layer IP layer of OSI network model and two-layer drive, and described method comprises: Step 101) is used to modify the application-requirement mapping table based on user-specific business application requirements; Step 102) read the latest modified application-demand mapping table, and receive the IP message sent by the three-layer IP layer, and set the value of the service type field contained in the received IP message according to the newly modified application-demand mapping table; Step 103) send the set IP message to the two-layer driver for processing; Wherein, the application-requirement mapping table includes: application name, protocol version, protocol type, port number and application requirement value. 2. the IP message generation based on user demand according to claim 1, sending method, it is characterized in that, described step 101) further comprises: Step 101-1) is used to set the application-requirement mapping table, that is, add an entry in the application-requirement mapping table; Step 101-2) is used to clear an existing entry in the application-requirement mapping table, that is, the user no longer needs specific processing of the application, and adopts the default processing method of IP packets; Step 101-3) After the user sets a specific application-requirement item, notify the service application of the application demand message real-time operation driver of the IP message, and read the latest application by the real-time operation drive of the application demand message of the service application IP message - Requirements Mapping Table. 3. according to claim 1 and 2 described IP message generation based on user demand, sending method, it is characterized in that, described step 102) further comprises: Step 102-1) receive the IP message that the three-layer IP layer sends to the lower layer, and use the application-requirement mapping table to determine whether the received IP message has a matching entry, and enter the next step if there is; otherwise, the IP message is directly sent For the second layer driver; Step 102-2) use the service type field in the matching table entry and the corresponding field in the received IP message header to perform XOR operation to obtain the service type field to be inserted, and replace the received IP message with the service type field to be inserted. Corresponding fields in the header of the file to obtain IP packets based on user requirements. 4. a kind of IP message generation based on user demand, sending system, this system is based on three-layer IP layer and two-layer drive of OSI network model, it is characterized in that, described system also comprises: An IP packet application requirement input module set at the application layer, which is used to complete the user's specific setting of a specific business application, that is, the user inputs the user's specific requirement for a certain application by modifying the application-requirement mapping table; and The application requirements real-time operation driver layer of the service application IP message set between the three-layer IP layer and the two-layer driver, and the application requirement real-time operation drive layer of the service application IP message is used for: Read the newly modified application-requirement mapping table, and receive the IP message sent by the three-layer IP layer, and set the value of the service type field contained in the received IP message according to the newly modified application-requirement mapping table; the set IP The message is sent to the Layer 2 driver for processing. 5. the IP message generation based on user demand according to claim 4, sending system, it is characterized in that, the application demand real-time operation driving layer of described service application IP message further comprises following function module: The receiving judgment module is used to receive the IP message sent by the three-layer IP layer to the lower layer, and use the application-requirement mapping table to determine whether the received IP message has a matching entry, and if so, enter the next step; otherwise, directly send the IP message Send to the second layer driver; The IP message regeneration module is used to use the service type field in the matching table item and the corresponding field in the received IP message header to perform XOR operation to obtain the service type field to be inserted, and replace it with the service type field to be inserted corresponding fields in the header of the received IP message to obtain an IP message based on user requirements; and The sending module is configured to send the IP packet generated by the IP packet regeneration module to the layer-2 driver for processing.