CN111988776A - Network switching method, device, equipment and storage medium - Google Patents

Network switching method, device, equipment and storage medium Download PDF

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Publication number
CN111988776A
CN111988776A CN202010862012.0A CN202010862012A CN111988776A CN 111988776 A CN111988776 A CN 111988776A CN 202010862012 A CN202010862012 A CN 202010862012A CN 111988776 A CN111988776 A CN 111988776A
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network
application program
target application
network type
switched
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CN111988776B (en
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赵凯
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Meizu Technology Co Ltd
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Meizu Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • 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]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/34—Modification of an existing route
    • H04W40/36—Modification of an existing route due to handover

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The disclosure relates to the technical field of communication, and discloses a network switching method, device, equipment and storage medium. The method comprises the following steps: when each application program is connected with a VPN network, determining a target application program of the network to be switched and a switched network type corresponding to the target application program; according to the switched network type and the application identifier of the target application program, determining a network type label corresponding to the target application program by modifying a firewall rule; setting a strategy route corresponding to the target application program in a system route table according to the network type label, wherein the strategy route is used for determining a transmission network port; and setting a source IP address conversion rule corresponding to the target application program according to the switched network type so as to switch the VPN network connected with the target application program to the switched network type. By the technical scheme, part of the application programs are switched to the wireless local area network or the mobile data network from the VPN network, and the network access rate of the corresponding application programs is improved.

Description

Network switching method, device, equipment and storage medium
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a network switching method, apparatus, device, and storage medium.
Background
More and more companies/schools provide internal resources for employees/teachers and students through networks, and in order to ensure the safety and better access rate of the internal resources, many companies/schools adopt Virtual Private Networks (VPNs).
When a user (staff/teachers) utilizes an electronic device (such as a mobile phone, a tablet computer and the like) with an Android system to connect a VPN (virtual private network) to access internal resources, and the VPN is a global VPN, all application programs in the electronic device can access a network through the VPN according to a system default routing strategy of the Android system. However, the speed of some application programs accessing the network through the VPN is reduced, which affects the internet experience of the user.
Disclosure of Invention
To solve the technical problem or at least partially solve the technical problem, the present disclosure provides a network handover method, apparatus, device and storage medium.
In a first aspect, the present disclosure provides a network switching method, where each application connects to a VPN network, the method including:
determining a target application program of a network to be switched and a switched network type corresponding to the target application program, wherein the switched network type is a wireless local area network or a mobile data network;
determining a network type label corresponding to the target application program by modifying a firewall rule according to the switched network type and the application identifier of the target application program;
setting a policy route corresponding to the target application program in a system routing table according to the network type label, wherein the policy route is used for determining a transmission network port of message data of the target application program according to the network type label;
and setting a source IP address conversion rule corresponding to the target application program according to the switched network type so as to switch the VPN network connected with the target application program to the switched network type, wherein the source IP address conversion rule is used for converting the source IP address corresponding to the VPN network into the IP address corresponding to the switched network type.
In some embodiments, the determining the target application of the network to be switched includes:
after receiving a network switching instruction triggered by a user, displaying an application program selection interface;
and determining the target application program based on the application program selection operation of the user on the application program selection interface.
Further, the determining the switched network type corresponding to the target application includes:
and under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program based on the network type selection operation of the user on the application program selection interface.
In some embodiments, the determining the target application of the network to be switched includes:
and acquiring a white list, and determining the target application program according to the packet name of the application program in the white list.
Further, the determining the switched network type corresponding to the target application includes:
and under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program according to the network type corresponding to the packet name of the application program in the white list.
In some embodiments, the determining the target application of the network to be switched includes:
and for each application program, if the domain name resolution time length of the application program exceeds the preset time length or the frequency of domain name resolution failure exceeds the preset frequency, determining the application program as the target application program.
In some embodiments, the method further comprises:
clearing a network type label corresponding to the target application program under the condition that the removal of the target application program is monitored; and/or
And under the condition that the VPN network is monitored to be disconnected, the network type label, the policy routing and the source IP address conversion rule corresponding to the target application program are removed.
In some embodiments, the method further comprises:
and under the condition that the target application program is monitored to be added again, according to the switched network type and the new application identifier of the target application program, the network type label corresponding to the target application program is determined again by modifying the firewall rule.
In some embodiments, the method further comprises:
acquiring message data generated by the target application program and the network type label corresponding to the message data, wherein the message data carries a source IP address corresponding to the VPN network;
determining a transmission network port corresponding to the target application program from the system routing table according to the network type label;
according to the source IP address conversion rule, converting the source IP address into an IP address corresponding to the switched network type;
and sending the message data from the transmission network port based on the IP address corresponding to the switched network type.
In some embodiments, the method further comprises:
receiving response data of the message data, wherein the response data carries a mac address and an IP address corresponding to the switched network type;
and transmitting the response data to the target application program through the mac address and the IP address corresponding to the switched network type.
In a second aspect, the present disclosure provides a network switching apparatus in which each application connects to a VPN network, the apparatus comprising:
the system comprises a target application program determining module, a switching module and a switching module, wherein the target application program determining module is used for determining a target application program of a network to be switched and a switched network type corresponding to the target application program, and the switched network type is a wireless local area network or a mobile data network;
a network type tag determining module, configured to determine, according to the switched network type, a network type tag corresponding to the target application program;
a policy routing setting module, configured to set a policy routing corresponding to the target application in a system routing table according to the network type tag, where the policy routing is used to determine a transmission network port of packet data of the target application according to the network type tag;
and an IP address conversion rule determining module, configured to set a source IP address conversion rule corresponding to the target application program according to the switched network type, so as to switch a VPN network connected to the target application program to the switched network type, where the source IP address conversion rule is used to convert a source IP address corresponding to the VPN network into an IP address corresponding to the switched network type.
In some embodiments, the target application determination module is specifically configured to:
after receiving a network switching instruction triggered by a user, displaying an application program selection interface;
and determining the target application program based on the application program selection operation of the user on the application program selection interface.
Further, the target application determination module is further specifically configured to:
and under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program based on the network type selection operation of the user on the application program selection interface.
In some embodiments, the target application determination module is specifically configured to:
and acquiring a white list, and determining the target application program according to the packet name of the application program in the white list.
Further, the target application determination module is further specifically configured to:
and under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program according to the network type corresponding to the packet name of the application program in the white list.
In some embodiments, the target application determination module is specifically configured to:
and for each application program, if the domain name resolution time length of the application program exceeds the preset time length or the frequency of domain name resolution failure exceeds the preset frequency, determining the application program as the target application program.
In some embodiments, the apparatus further comprises a network rule clearing module to:
clearing a network type label corresponding to the target application program under the condition that the removal of the target application program is monitored; and/or
And under the condition that the VPN network is monitored to be disconnected, the network type label, the policy routing and the source IP address conversion rule corresponding to the target application program are removed.
In some embodiments, the apparatus further comprises a network type tag re-determination module to:
and under the condition that the target application program is monitored to be added again, according to the switched network type and the new application identifier of the target application program, the network type label corresponding to the target application program is determined again by modifying the firewall rule.
In some embodiments, the apparatus further includes a message data sending module configured to:
acquiring message data generated by the target application program and the network type label corresponding to the message data, wherein the message data carries a source IP address corresponding to the VPN network;
determining a transmission network port corresponding to the target application program from the system routing table according to the network type label;
according to the source IP address conversion rule, converting the source IP address into an IP address corresponding to the switched network type;
and sending the message data from the transmission network port based on the IP address corresponding to the switched network type.
In some embodiments, the apparatus further includes a message data receiving module configured to:
receiving response data of the message data, wherein the response data carries a mac address and an IP address corresponding to the switched network type;
and transmitting the response data to the target application program through the mac address and the IP address corresponding to the switched network type.
In a third aspect, the present disclosure provides an electronic device, including:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement any of the embodiments of the network handover method described above.
In a fourth aspect, the present disclosure provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the embodiments of the network handover method described above.
According to the technical scheme provided by the embodiment of the disclosure, under the condition that each application program is connected with a VPN network, a target application program of the network to be switched and a switched network type corresponding to the target application program are determined; according to the switched network type and the application identifier of the target application program, determining a network type label corresponding to the target application program by modifying a firewall rule; setting a strategy route corresponding to the target application program in a system route table according to the network type label, wherein the strategy route is used for determining a transmission network port of message data of the target application program according to the network type label; and setting a source IP address conversion rule corresponding to the target application program according to the switched network type so as to switch the VPN network connected with the target application program to the switched network type. The network mode (network type) of the application program with the slow network access speed in the terminal is switched to the wireless local area network or the mobile data network from the VPN network, so that the network access speed of the corresponding application program is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a flowchart of a network handover method provided in an embodiment of the present disclosure;
fig. 2 is a flowchart of message data transmission based on a network switching method according to an embodiment of the present disclosure;
fig. 3 is a flowchart of another network handover method provided by the embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a network switching apparatus according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an electronic device provided in an embodiment of the present disclosure.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be described in further detail below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
The network switching method provided by the embodiment of the disclosure is mainly suitable for a scene that the network mode is switched for part of application programs in the device under the condition that the device is connected with a VPN network. The network switching method provided by the embodiment of the present disclosure may be executed by a network switching device, where the device may be implemented by software and/or hardware, and the device may be integrated in an electronic device capable of accessing a VPN network, such as a mobile phone, a palm-top computer, a tablet computer, a notebook computer, or a desktop computer.
Fig. 1 is a flowchart of a network handover method according to an embodiment of the present disclosure. Referring to fig. 1, the network switching method specifically includes:
s110, determining a target application program of a network to be switched and a switched network type corresponding to the target application program, wherein the switched network type is a wireless local area network or a mobile data network.
Specifically, when the electronic device is connected to the VPN network, all application programs installed therein are all subjected to network access through the VPN network by default. In this scenario, the network switching apparatus needs to determine an application (i.e., a target application) with a slower network access rate from all applications, and needs to determine which network type the target application has a faster network access rate, i.e., determine a switched network type corresponding to the target application. Here the switched network type may be a wireless local area network, such as Wi-Fi; or may be a cellular mobile data network provided by a carrier card (i.e. SIM card) in the electronic device.
The target application program can be determined by the user through an interactive interface or automatically determined by the electronic equipment. The mode for determining the switched network type may be selected by the user through an interactive interface, or may be automatically selected from currently available network types, or may be automatically determined according to the communication quality of different network types.
It should be noted that the determined target application program may be one or more. If the number of the target application programs is multiple, each target application program executes the same network switching process.
And S120, determining a network type label corresponding to the target application program by modifying the firewall rule according to the switched network type and the application identifier of the target application program.
The application identifier UID is a unique identifier of the application program in the running system, and even if the same application program is reinstalled, the UID of the application program before and after installation will be different. The firewall rules are rules for a network firewall to control applications in the electronic device to communicate with the internet, including communication rules for controlling all incoming and outgoing network communications. The control network communication process needs to clarify the identification (i.e. network type label) of the network type corresponding to each application program. The network type tag is a preset identifier for each network type, which should be distinguished from the identifier used by the system in the firewall rules, and for example, a network type tag 1024 may be set for a Wi-Fi network type.
Specifically, network communication of all applications is controlled by a network firewall, and in order to enable a target application to perform network communication through a switched network type, a network switching device needs to modify a firewall rule and determine a switched network type tag corresponding to the target application, so as to establish an association relationship between the target application and the switched network type in the firewall rule. For example, for a target application with an application identifier UID of 10048 and a switched network type of Wi-Fi network type, the firewall rules may be modified by iptables-t mangle-a OUTPUT-m owner-UID-owner 10048-j MARK-set-MARK 1024 to set a network type label 1024 for the target application. If the switched network type is not a Wi-Fi network, the mark in the network type label setting statement is changed into a label corresponding to the corresponding network type.
S130, according to the network type label, setting a strategy route corresponding to the target application program in a system route table, wherein the strategy route is used for determining a transmission network port of the message data of the target application program according to the network type label.
The system routing table is a spreadsheet (file) or class database stored in the electronic device, which is used to implement routing protocols and decision routing.
Specifically, the network switching device determines, in addition to the network type tag for the target application program, a transmission network port used in the network communication process for the target application program, where the transmission network port is used to transmit message data corresponding to the target application program. In specific implementation, the network switching device determines the transmission network port corresponding to the switched network type according to the network type tag corresponding to the target application program, and sets a policy route in the system routing table to establish an association relationship between the network type tag and the transmission network port in the routing table, so that message data can be routed for the target application program according to the policy route in the subsequent communication process, that is, the message data carrying the network type tag is routed to the transmission network port corresponding to the target application program for message transmission. For example, a policy route may be set for the network type label 1024(Wi-Fi label) through an ip rule add fwmark 1024priority 1000table wlan0, and the policy route determines that its corresponding transport port is wlan 0. If the switched network type is not a Wi-Fi network, the wlan0 in the policy routing setting statement is changed to the network port corresponding to the corresponding network type.
It should be noted that the priority of the policy routing in the embodiment of the present disclosure is higher than the priority of the default routing of the system, so as to ensure that the target application performs network access preferentially according to the network type after the handover.
S140, according to the switched network type, setting a source IP address conversion rule corresponding to the target application program so as to switch the VPN network connected with the target application program to the switched network type.
The source IP address translation rule is a rule for performing IP address translation, and is implemented by modifying a firewall rule.
Specifically, the target application program communicates through the switched network type, and the network switching device further needs to set a source IP address conversion rule for the target application program by modifying the firewall rule, where the source IP address conversion rule can convert a source IP address corresponding to the VPN network into an IP address of a transmission network port corresponding to the switched network type in the communication process. Therefore, the message data of the target application program can be transmitted through the transmission network port based on the IP address of the transmission network port corresponding to the switched network type, and network switching is realized.
It should be noted that the execution order of S130 and S140 is not limited here, and S130 may be executed before/after S140, or S130 may be executed in parallel with S140.
According to the technical scheme of the embodiment of the disclosure, under the condition that each application program is connected with the VPN network, the target application program of the network to be switched and the switched network type corresponding to the target application program are determined; according to the switched network type and the application identifier of the target application program, determining a network type label corresponding to the target application program by modifying a firewall rule; setting a strategy route corresponding to the target application program in a system route table according to the network type label, wherein the strategy route is used for determining a transmission network port of message data of the target application program according to the network type label; and setting a source IP address conversion rule corresponding to the target application program according to the switched network type so as to switch the VPN network connected with the target application program to the switched network type. The network mode of the application program with the slow network access speed in the terminal is switched to the wireless local area network or the mobile data network from the VPN network, so that the network access speed of the corresponding application program is improved.
In some embodiments, on the basis of the foregoing technical solution, the network handover method further includes: clearing a network type label corresponding to the target application program under the condition that the removal of the target application program is monitored; and/or clearing the network type label, the strategy route and the source IP address conversion rule corresponding to the target application program under the condition of monitoring the disconnection of the VPN network. Specifically, when it is monitored that the target application is removed, the network switching device may clear the setting rule of the network type tag corresponding to the target application in the firewall rule, so as to clear the network conversion processing on the target application. When the disconnection of the VPN network is monitored, the network switching device may remove the firewall rules set by the network type label, the policy routing, and the source IP address translation rule without executing the network switching method according to the embodiment of the present disclosure.
In some embodiments, on the basis of the foregoing technical solution, the network handover method further includes: and under the condition that the target application program is monitored to be added again, according to the switched network type and the new application identifier of the target application program, the firewall rule is modified, and the network type label corresponding to the target application program is determined again. Specifically, when it is monitored that the target application program is newly added, for example, the packet name of the newly added target application program is the same, but the application identifier UID is different, but the VPN network is not disconnected, the network switching apparatus needs to reset the network type tag for the target application program. For example, the network type tag is set in the same manner as in S120, the mark tag is not changed, but the UID is different. Thus, the network switching of the target application program can be realized quickly.
Fig. 2 is a flowchart of another network handover method provided in the embodiment of the present disclosure. It further optimizes the 'determining the target application of the network to be switched'. On the basis, the method can further optimize the switched network type corresponding to the determined target application program. Wherein explanations of the same or corresponding terms as those of the above embodiments are omitted. Referring to fig. 2, the network handover method includes:
and S210, displaying an application program selection interface after receiving a network switching instruction triggered by a user.
The network switching instruction refers to an instruction for triggering a network switching process.
Specifically, in some embodiments, the network switching device provides a human-computer interaction interface, and determines the target application program and the switched network type thereof through the interaction operation of the user. In specific implementation, when a user clicks a control capable of triggering a network switching process in a human-computer interaction interface, for example, the user clicks a network switching button, or the user clicks a button corresponding to a switched network type, the network switching device receives a network switching instruction generated based on a user click operation, and then displays an application program selection interface to the user. The application selection interface shows a plurality of applications installed in the electronic equipment, and the applications can execute network type switching.
And S220, determining a target application program based on the application program selection operation of the user on the application program selection interface.
Specifically, after the electronic device is connected to the VPN network, the user may perceive which application programs have a slower network access rate, and at this time, the user may select the application program with the slower network access rate through the application program selection interface, and the network switching device may receive the selection instruction corresponding to the corresponding application program, and then take the application program corresponding to the selection instruction as the target application program.
And S230, under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program based on the network type selection operation of the user on the application program selection interface.
Specifically, after the electronic device connects to the global VPN network, in addition to the VPN network being available, at least one of a wireless local area network and a mobile data network is available, such as a VPN network and a wireless local area network, a VPN network and a mobile data network, or a VPN network, a wireless local area network and a mobile data network. In any case, the network switching device may provide an interactive interface for selecting a network type, for example, a network type selection button is added in the application selection interface, when the user selects an application, the network type to be switched may be selected together, and then the network switching device may determine the switched network type corresponding to each target application based on the selection operation of the user. And setting corresponding communication rules for the target application program and the switched network type thereof, so as to communicate according to the set communication rules when the switched network type is available.
S240, acquiring the white list, and determining the target application program according to the package name of the application program in the white list.
Specifically, in some embodiments, a white list may be preset for storing information (such as a packet name) of an application that is to switch a network type in the case of a VPN connection, for example, information of an application that accesses an external resource. The whitelist may be stored in the cloud or locally. The network switching device acquires the white list under the condition that VPN connection is detected, then reads the packet name from the white list, and determines the application program matched with the packet name in all the application programs installed in the electronic equipment as the target application program.
And S250, under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program according to the network type corresponding to the packet name of the application program in the white list.
Specifically, the white list may store information of the application programs, and may also store a network type after handover corresponding to each application program. Then, in a case that at least one of the wlan and the mobile data network is available, the network switching device may read the white list to obtain the switched network type corresponding to each target application.
And S260, aiming at each application program, if the domain name resolution time length of the application program exceeds the preset time length or the frequency of domain name resolution failure exceeds the preset frequency, determining the application program as a target application program.
Specifically, in some embodiments, the network switching device may automatically detect the network access rate of each application after connecting to the VPN network to determine the target application. In this embodiment, the network switching apparatus detects the network access rate according to a resolution condition (e.g., a resolution status and/or a resolution duration) of the domain name dns corresponding to each application. If the domain name resolution time length of a certain application program exceeds the preset time length (namely the preset time length), or the number of times of domain name resolution failure exceeds the preset number, the network access rate of the application program is considered to be slower, and the application program is determined to be the target application program. The above process is executed for each application program, so that all target application programs needing to switch the network can be determined. The preset duration and the preset times can be determined according to the requirement of the user on the response rate of the application program.
And S270, according to the switched network type and the application identifier of the target application program, determining a network type label corresponding to the target application program by modifying the firewall rule.
S280, setting a strategy route corresponding to the target application program in a system route table according to the network type label, wherein the strategy route is used for determining a transmission network port of the message data of the target application program according to the network type label.
S290, according to the switched network type, setting a source IP address conversion rule corresponding to the target application program so as to switch the VPN network connected with the target application program to the switched network type.
According to the technical scheme of the embodiment of the disclosure, after a network switching instruction triggered by a user is received, an application program selection interface is displayed; determining a target application program based on the application program selection operation of a user on an application program selection interface; and under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program based on the network type selection operation of the user on the application program selection interface. The method and the device realize that the user manually selects the target application program and the network type after switching, so that the network switching result is more in line with the user requirement. Determining a target application program by acquiring a white list and according to the package name of the application program in the white list; and determining the switched network type corresponding to the target application program according to the network type corresponding to the packet name of the application program in the white list under the condition that the wireless local area network and/or the mobile data network are available. The method and the device realize the automatic determination of the target application program and the switched network type thereof by setting the white list, and further improve the convenience of the determination of the target application program and the network type thereof. By aiming at each application program, if the domain name resolution time length of the application program exceeds the preset time length or the frequency of domain name resolution failure exceeds the preset frequency, the application program is determined as the target application program. The method and the device have the advantages that the network access speed of each application program is automatically determined by utilizing the domain name resolution condition, so that the application program with the low network access speed is automatically determined to be the target application program, the network type with the high network access speed is automatically determined to be the switched network type, the current network environment can be considered, and the automation degree and the accuracy of the determination of the target application program and the switched network type are further improved.
Fig. 3 is a flowchart of message data transmission based on a network switching method according to an embodiment of the present disclosure. Referring to fig. 3, the message data transmission process based on the network switching method specifically includes:
s310, message data generated by the target application program and a network type label corresponding to the message data are obtained, and the message data carry a source IP address corresponding to a VPN network.
Specifically, after the network handover is successful, the target application may communicate through the network type after the handover. Aiming at the message sending of the target application program, the network switching device acquires message data to be sent by the target application program and a network type label of the target application program required by the message data sending, wherein the message data comprises a source IP address of a network port corresponding to a VPN network.
And S320, determining a transmission network port corresponding to the target application program from the system routing table according to the network type label.
Specifically, the network switching device determines the transmission network port corresponding to the target application program through the policy routing in the system routing table according to the network type label.
S330, converting the source IP address into an IP address corresponding to the switched network type according to the source IP address conversion rule.
Specifically, the network switching device converts the source IP address into an IP address of a gateway corresponding to the switched network type based on a source IP address conversion rule.
And S340, sending the message data from the transmission network port based on the IP address corresponding to the switched network type.
And S350, receiving response data of the message data, wherein the response data carries the mac address and the IP address corresponding to the switched network type.
And S360, transmitting the response data to the target application program through the mac address and the IP address corresponding to the switched network type.
Specifically, the network switching device transmits the response data to the target application program through the mac address and the IP address corresponding to the switched network type based on the TCP/IP network protocol stack.
According to the technical scheme of the embodiment of the present disclosure, on the basis of the network switching method provided in each embodiment, the target application program uses the switched network to transmit the message data and receive the response data of the message data, so that the transmission efficiency of the message data after network switching is improved, that is, the network access rate of the target application program is improved.
Fig. 4 is a schematic structural diagram of a network switching device according to an embodiment of the present disclosure. Referring to fig. 4, in a case where each application in the electronic device is connected to the VPN network, the apparatus specifically includes:
a target application program determining module 410, configured to determine a target application program of a network to be switched and a switched network type corresponding to the target application program, where the switched network type is a wireless local area network or a mobile data network;
a network type tag determining module 420, configured to determine, according to the switched network type, a network type tag corresponding to the target application program;
a policy routing setting module 430, configured to set a policy routing corresponding to the target application in a system routing table according to the network type tag, where the policy routing is used to determine a transmission network port of message data of the target application according to the network type tag;
the IP address conversion rule determining module 440 is configured to set a source IP address conversion rule corresponding to the target application program according to the switched network type, so as to switch the VPN network connected to the target application program to the switched network type, where the source IP address conversion rule is used to convert a source IP address corresponding to the VPN network into an IP address corresponding to the switched network type.
In some embodiments, the target application determination module 410 is specifically configured to:
after receiving a network switching instruction triggered by a user, displaying an application program selection interface;
and determining the target application program based on the application program selection operation of the user on the application program selection interface.
Further, the target application determination module 410 is further specifically configured to:
and under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program based on the network type selection operation of the user on the application program selection interface.
In some embodiments, the target application determination module 410 is specifically configured to:
and acquiring a white list, and determining a target application program according to the packet name of the application program in the white list.
Further, the target application determination module 410 is further specifically configured to:
and under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program according to the network type corresponding to the packet name of the application program in the white list.
In some embodiments, the target application determination module 410 is specifically configured to:
and for each application program, if the domain name resolution time length of the application program exceeds the preset time length or the frequency of domain name resolution failure exceeds the preset frequency, determining the application program as a target application program.
In some embodiments, the apparatus further comprises a network rule clearing module to:
clearing a network type label corresponding to the target application program under the condition that the removal of the target application program is monitored; and/or
And under the condition that the VPN network is monitored to be disconnected, removing the network type label, the policy routing and the source IP address conversion rule corresponding to the target application program.
In some embodiments, the apparatus further comprises a network type tag re-determination module to:
and under the condition that the target application program is monitored to be added again, according to the switched network type and the new application identifier of the target application program, the firewall rule is modified, and the network type label corresponding to the target application program is determined again.
In some embodiments, the apparatus further includes a message data sending module configured to:
acquiring message data generated by a target application program and a network type label corresponding to the message data, wherein the message data carries a source IP address corresponding to a VPN network;
determining a transmission network port corresponding to the target application program from a system routing table according to the network type label;
according to the source IP address conversion rule, converting the source IP address into an IP address corresponding to the switched network type;
and sending the message data from the transmission network port based on the IP address corresponding to the switched network type.
In some embodiments, the apparatus further includes a message data receiving module configured to:
receiving response data of the message data, wherein the response data carries the mac address and the IP address corresponding to the switched network type;
and transmitting the response data to the target application program through the mac address and the IP address corresponding to the switched network type.
By the network switching device provided by the embodiment of the disclosure, the network mode of the application program with slow network access speed in the terminal is switched from the VPN network to the wireless local area network or the mobile data network, so that the network access speed of the corresponding application program is improved.
The network switching device provided by the embodiment of the disclosure can execute the network switching method provided by any embodiment of the disclosure, and has corresponding functional modules and beneficial effects of the execution method.
It should be noted that, in each embodiment of the network switching apparatus, each included module is only divided according to functional logic, but is not limited to the above division, as long as the corresponding function can be implemented; in addition, specific names of the functional modules are only used for distinguishing one functional module from another, and are not used for limiting the protection scope of the present disclosure.
Fig. 5 is a schematic structural diagram of an electronic device provided in an embodiment of the present disclosure. Referring to fig. 5, an electronic device 500 provided by an embodiment of the present disclosure includes: one or more processors 520; the storage 510 is configured to store one or more programs, and when the one or more programs are executed by the one or more processors 520, the one or more processors 520 are enabled to implement the network handover method provided by the embodiment of the present disclosure, including:
under the condition that each application program is connected with a VPN network, determining a target application program of the network to be switched and a switched network type corresponding to the target application program, wherein the switched network type is a wireless local area network or a mobile data network;
according to the switched network type and the application identifier of the target application program, determining a network type label corresponding to the target application program by modifying a firewall rule;
setting a strategy route corresponding to the target application program in a system route table according to the network type label, wherein the strategy route is used for determining a transmission network port of message data of the target application program according to the network type label;
and setting a source IP address conversion rule corresponding to the target application program according to the switched network type so as to switch the VPN network connected with the target application program to the switched network type, wherein the source IP address conversion rule is used for converting the source IP address corresponding to the VPN network into the IP address corresponding to the switched network type.
Of course, those skilled in the art can understand that the processor 520 may also implement the technical solution of the network handover method provided in any embodiment of the present disclosure.
The electronic device 500 shown in fig. 5 is only an example and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure.
As shown in fig. 5, the electronic device 500 is embodied in the form of a general purpose computing device. The components of the electronic device 500 may include, but are not limited to: one or more processors 520, a memory device 510, and a bus 550 that couples the various system components (including the memory device 510 and the processors 520).
Bus 550 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
Electronic device 500 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by electronic device 500 and includes both volatile and nonvolatile media, removable and non-removable media.
Storage 510 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)511 and/or cache memory 512. The electronic device 500 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 513 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 550 by one or more data media interfaces. Storage 510 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the disclosure.
A program/utility 514 having a set (at least one) of program modules 515 may be stored, for instance, in storage 510, such program modules 515 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 515 generally perform the functions and/or methods of any of the embodiments described in this disclosure.
The electronic device 500 may also communicate with one or more external devices 560 (e.g., keyboard, pointing device, display 570, etc.), with one or more devices that enable a user to interact with the electronic device 500, and/or with any devices (e.g., network card, modem, etc.) that enable the electronic device 500 to communicate with one or more other computing devices. Such communication may be through input/output interfaces (I/O interfaces) 530. Also, the electronic device 500 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) through the network adapter 540. As shown in FIG. 5, the network adapter 540 communicates with the other modules of the electronic device 500 over a bus 550. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 500, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
The disclosed embodiments also provide a storage medium containing computer-executable instructions which, when executed by a computer processor, are configured to perform a method of network handover, the method comprising:
under the condition that each application program is connected with a VPN network, determining a target application program of the network to be switched and a switched network type corresponding to the target application program, wherein the switched network type is a wireless local area network or a mobile data network;
according to the switched network type and the application identifier of the target application program, determining a network type label corresponding to the target application program by modifying a firewall rule;
setting a strategy route corresponding to the target application program in a system route table according to the network type label, wherein the strategy route is used for determining a transmission network port of message data of the target application program according to the network type label;
and setting a source IP address conversion rule corresponding to the target application program according to the switched network type so as to switch the VPN network connected with the target application program to the switched network type, wherein the source IP address conversion rule is used for converting the source IP address corresponding to the VPN network into the IP address corresponding to the switched network type.
Of course, the storage medium provided by the embodiments of the present disclosure contains computer-executable instructions, and the computer-executable instructions are not limited to the above method operations, and may also perform related operations in the network handover method provided by any embodiments of the present disclosure.
The computer storage media of the disclosed embodiments may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be understood that the terminology used in the disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present application. As used in the specification and claims of this disclosure, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are inclusive in the plural, unless the context clearly dictates otherwise. The term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (12)

1. A network switching method in which each application connects to a VPN network, the method comprising:
determining a target application program of a network to be switched and a switched network type corresponding to the target application program, wherein the switched network type is a wireless local area network or a mobile data network;
determining a network type label corresponding to the target application program by modifying a firewall rule according to the switched network type and the application identifier of the target application program;
setting a policy route corresponding to the target application program in a system routing table according to the network type label, wherein the policy route is used for determining a transmission network port of message data of the target application program according to the network type label;
and setting a source IP address conversion rule corresponding to the target application program according to the switched network type so as to switch the VPN network connected with the target application program to the switched network type, wherein the source IP address conversion rule is used for converting the source IP address corresponding to the VPN network into the IP address corresponding to the switched network type.
2. The method of claim 1, wherein determining the target application of the network to be switched comprises:
after receiving a network switching instruction triggered by a user, displaying an application program selection interface;
and determining the target application program based on the application program selection operation of the user on the application program selection interface.
3. The method of claim 2, wherein the determining the switched network type corresponding to the target application comprises:
and under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program based on the network type selection operation of the user on the application program selection interface.
4. The method of claim 1, wherein determining the target application of the network to be switched comprises:
and acquiring a white list, and determining the target application program according to the packet name of the application program in the white list.
5. The method of claim 4, wherein the determining the switched network type corresponding to the target application comprises:
and under the condition that the wireless local area network and/or the mobile data network are available, determining the switched network type corresponding to the target application program according to the network type corresponding to the packet name of the application program in the white list.
6. The method of claim 1, wherein determining the target application of the network to be switched comprises:
and for each application program, if the domain name resolution time length of the application program exceeds the preset time length or the frequency of domain name resolution failure exceeds the preset frequency, determining the application program as the target application program.
7. The method of claim 1, further comprising:
clearing a network type label corresponding to the target application program under the condition that the removal of the target application program is monitored; and/or
And under the condition that the VPN network is monitored to be disconnected, the network type label, the policy routing and the source IP address conversion rule corresponding to the target application program are removed.
8. The method of claim 1, further comprising:
and under the condition that the target application program is monitored to be added again, according to the switched network type and the new application identifier of the target application program, the network type label corresponding to the target application program is determined again by modifying the firewall rule.
9. The method of claim 1, further comprising:
acquiring message data generated by the target application program and the network type label corresponding to the message data, wherein the message data carries a source IP address corresponding to the VPN network;
determining a transmission network port corresponding to the target application program from the system routing table according to the network type label;
according to the source IP address conversion rule, converting the source IP address into an IP address corresponding to the switched network type;
and sending the message data from the transmission network port based on the IP address corresponding to the switched network type.
10. A network switching apparatus, wherein each application connects to a VPN network, the apparatus comprising:
the system comprises a target application program determining module, a switching module and a switching module, wherein the target application program determining module is used for determining a target application program of a network to be switched and a switched network type corresponding to the target application program, and the switched network type is a wireless local area network or a mobile data network;
a network type tag determining module, configured to determine, according to the switched network type, a network type tag corresponding to the target application program;
a policy routing setting module, configured to set a policy routing corresponding to the target application in a system routing table according to the network type tag, where the policy routing is used to determine a transmission network port of packet data of the target application according to the network type tag;
and an IP address conversion rule determining module, configured to set a source IP address conversion rule corresponding to the target application program according to the switched network type, so as to switch a VPN network connected to the target application program to the switched network type, where the source IP address conversion rule is used to convert a source IP address corresponding to the VPN network into an IP address corresponding to the switched network type.
11. An electronic device, characterized in that the electronic device comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the network handover method of any of claims 1-9.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the network switching method according to any one of claims 1 to 9.
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