CN110535746B - Virtual private network VPN sharing method and device, electronic equipment and storage medium - Google Patents
Virtual private network VPN sharing method and device, electronic equipment and storage medium Download PDFInfo
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- CN110535746B CN110535746B CN201910833767.5A CN201910833767A CN110535746B CN 110535746 B CN110535746 B CN 110535746B CN 201910833767 A CN201910833767 A CN 201910833767A CN 110535746 B CN110535746 B CN 110535746B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
Abstract
The embodiment of the invention relates to a computer network and discloses a method and a device for sharing a Virtual Private Network (VPN), electronic equipment and a storage medium. The invention discloses a virtual private network VPN sharing method, which is applied to first equipment and comprises the following steps: the method comprises the steps of obtaining an access channel and a VPN channel, wherein the access channel is used for network sharing of first equipment and second equipment, and the VPN channel is used for the first equipment to access a VPN; establishing connection between an access channel and a VPN channel to form a VPN shared channel; and responding to a network access request sent by the second device, and connecting the second device and the VPN shared channel. The embodiment can support a plurality of devices to simultaneously use the same VPN channel to access the VPN, improve the utilization rate of the VPN and reduce the use cost of the VPN.
Description
Technical Field
The embodiment of the invention relates to a computer network, in particular to a Virtual Private Network (VPN) sharing method, a device, electronic equipment and a storage medium.
Background
The Virtual Private Network (VPN) functions are: and establishing a private network on the public network for encrypted communication. VPNs have been widely used by large companies, organizations, and organizations. Particularly for business personnel on business trips and outside residences, the VPN is a unique channel for normal connection between the business personnel and a company network, and usually, an employee only has an account number of the VPN and cannot log in simultaneously, for example: the VPN can not be logged on a computer when the mobile phone logs on.
The inventors found that at least the following problems exist in the related art: because only one user is allowed to log in by one VPN account, when a plurality of devices need to use the VPN, the VPN can only be realized by logging in the VPN account, so that the waste of VPN resources is caused, and the cost for using the VPN is increased.
Disclosure of Invention
The embodiment of the invention aims to provide a method, a device, an electronic device and a storage medium for sharing a Virtual Private Network (VPN), so that a plurality of devices can be supported to simultaneously use the same VPN channel to access the VPN, the utilization rate of the VPN is improved, and the use cost of the VPN is reduced.
To solve the above technical problem, an embodiment of the present invention provides a method for virtual private network VPN sharing, which is applied to a first device, and includes: the method comprises the steps of obtaining an access channel and a VPN channel, wherein the access channel is used for network sharing of first equipment and second equipment, and the VPN channel is used for the first equipment to access a VPN; establishing connection between an access channel and a VPN channel to form a VPN shared channel; and responding to a network access request sent by the second device, and connecting the second device and the VPN shared channel.
The embodiment of the invention also provides a Virtual Private Network (VPN) sharing device, which comprises: the device comprises an acquisition module, a channel establishing module and a connection module; the acquisition module is used for acquiring an access channel and a VPN channel, wherein the access channel is used for network sharing between first equipment and second equipment, and the VPN channel is used for the first equipment to access a VPN; the channel establishing module is used for establishing the connection between the access channel and the VPN channel to form a VPN shared channel; the connection module is used for responding to a network access request sent by the second equipment and connecting the second equipment and the VPN shared channel.
An embodiment of the present invention also provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method for virtual private network VPN sharing described above.
Embodiments of the present invention also provide a computer-readable storage medium storing a computer program, which when executed by a processor implements the above-mentioned method for virtual private network VPN sharing.
Compared with the prior art, in the embodiment of the invention, because only one device login is supported by one current VPN account, namely only one device is allowed to access the VPN through the login of the VPN account and the VPN channel corresponding to the account, a shared channel is formed by establishing the connection between the access channel and the VPN channel, and the second device and the VPN shared channel are connected in response to a network access request sent by the second device, so that the second device can access the VPN through the VPN shared channel after the first device accesses the VPN; because the VPN shared channel is formed by connecting the access channel and the VPN channel, the device can log in and use the same VPN channel at the same time, thereby improving the utilization rate of the VPN and reducing the use cost of the VPN.
In addition, establishing a connection between the access channel and the VPN channel to form a VPN shared channel specifically includes: acquiring a network interface of data output of a VPN channel and acquiring a source address of the VPN; changing a network interface of data output of the access channel into a network interface of data output of the VPN channel, and designating a source address of the VPN as a source address of a shared network to form a VPN shared channel; the network interface for data input of the access channel is a network interface for data input of the VPN shared channel, and the network interface for data output of the VPN shared channel is a network interface for data output of the VPN shared channel. The network interface of the data output of the access channel is different from the network interface of the data output of the VPN channel, so that the access channel cannot acquire the data output from the VPN channel, the network interface of the data output of the access channel is changed into the network interface of the data output of the VPN channel, the network interface of the data output of the access channel can acquire the data output from the VPN channel, the source address of the VPN is designated as the source address of a shared network, the source address of the network accessed by a plurality of devices at the same time is the VPN, and the plurality of devices can be ensured to access the VPN through the VPN shared channel.
In addition, before the access channel and the VPN channel are acquired, the method for sharing the virtual private network VPN further includes: and detecting whether the access channel and the VPN channel are both opened, if not, opening the channel which is not opened. Before the access channel and the VPN channel are obtained each time, whether the access channel and the VPN channel are both opened or not is detected, so that the connection between the VPN channel and the access channel can be ensured to be established subsequently.
In addition, before forming the VPN sharing channel, the method of virtual private network VPN sharing further includes: and acquiring system authority, wherein the system authority is used for granting the authority for establishing the connection between the access channel and the VPN channel. The access channel and the VPN channel are established under the authorized premise, so that the stability of the VPN shared channel can be ensured.
In addition, the access channel includes any one of: hot spot channel, bluetooth channel and USB connected channel. And various access channels are provided, and the flexibility of forming the VPN shared channel is improved.
In addition, after changing the network interface of the data output of the access tunnel to the network interface of the data output of the VPN tunnel and specifying the source address of the VPN as the source address of the shared network, and before forming the VPN sharing tunnel, the method of virtual private network VPN sharing further includes: a network interface to refresh the data output of the access channel, and a source address of the shared network. By performing the refresh operation, stable formation of the VPN shared channel can be ensured.
In addition, the number of second devices is at least 1. The number of the second devices can be multiple, and the utilization rate of the VPN is further improved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a detailed flowchart of a method for virtual private network VPN sharing according to a first embodiment of the present invention;
fig. 2 is a detailed flowchart of a method for virtual private network VPN sharing according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a virtual private network VPN sharing apparatus according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and referred to without contradiction.
The inventor has the advantages that one VPN account only allows one user to log in, namely one VPN account allows one device to log in, and the VPN is accessed through a VPN channel corresponding to the VPN account; this results in that multiple devices cannot access the VPN using one VPN tunnel at the same time, increasing the cost of using the VPN. However, there are various network sharing modes in the terminal, such as a hotspot mode, (Wireless Fidelity, wifi for short) mode, and the like, generally, the terminal a starts a hotspot and a data internet function, and other devices may share the data function started by the terminal a through the hotspot. However, current shared network approaches do not support shared VPNs.
A first embodiment of the present invention relates to a method of virtual private network VPN sharing. The method for sharing the virtual private network VPN is applied to first equipment, the first equipment has a network sharing function, for example, the functions of hot spots, Bluetooth, Wireless Fidelity (wifi), USB connection sharing network and the like are provided, and the first equipment can be a terminal, such as a mobile phone, a PAD and the like, and can also be computer equipment and the like. The specific flow of the virtual private network VPN sharing method is shown in fig. 1.
Step 101: the method comprises the steps of obtaining an access channel and a VPN channel, wherein the access channel is used for network sharing of first equipment and second equipment, and the VPN channel is used for the first equipment to access a VPN.
Specifically, the network sharing mode may be a hotspot, bluetooth, USB, wifi, or the like, and the access channel may be any one of the following: hot spot channel, bluetooth channel and USB connected channel. The first device and the second device can share the network through a hot spot channel, a Bluetooth channel and a USB connection channel. The working process of the access channel is as follows: the device A is a first device, the device A starts a cellular network, cellular data flows out from the network interface A, after the device A starts a hotspot, a network interface for data input of a hotspot channel is connected with a second device, and a network interface for data output of the hotspot channel is connected with the network interface A, so that the second device is accessed to the cellular network started by the device A through the hotspot channel. For example, the device a starts the bluetooth and the cellular network, the device B connects to the device a, and accesses the cellular network started by the device a, and the working processes of other access channels are similar, which will not be described herein again.
After an access channel and a VPN channel of the first device are formed, the access channel and the VPN channel are obtained, namely a network interface for data input of the access channel and a network interface for data output of the access channel can be obtained; and acquiring a network interface for data input of the VPN channel and a network interface for data output of the VPN channel.
Step 102: and establishing connection between the access channel and the VPN channel to form a VPN shared channel.
The method comprises the following steps of specifically realizing, acquiring a network interface of data output of a VPN channel, and acquiring a source address of the VPN; changing a network interface of data output of the access channel into a network interface of data output of the VPN channel, and designating a source address of the VPN as a source address of a shared network to form a VPN shared channel; the network interface for data input of the access channel is a network interface for data input of the VPN shared channel, and the network interface for data output of the VPN shared channel is a network interface for data output of the VPN shared channel.
Specifically, each channel has a corresponding network interface, and requests, data acquisition, and the like are sent through the network interfaces. The network interface of the data output of the VPN channel can be directly read, and meanwhile, the first device is accessed to the VPN through the VPN channel, so that the source address of the VPN can also be directly obtained. The network interface of the data output of the access channel is changed into the network interface of the data output of the VPN channel, and the source address of the VPN is designated as the source address of the shared network to form a VPN shared channel; the network interface of data output of the access channel is changed, so that the access from the network access of the data input of the access channel can access the VPN through the network interface of the data output of the VPN channel.
Taking an android phone as an example, the access channel is a hot spot channel, and specifically describing a process of establishing a connection between the access channel and a VPN channel to form a VPN shared channel.
The android mobile phone is a mobile phone system developed based on a Linux system, the IPtable is a client proxy of a firewall on the Linux system, the IPtable defines a plurality of rules, and a source address and a target address can be specified in the rules, and a transmission protocol is as follows: TCP, UDP, IMCP and service types such as: HTTP, FTP, SMTP, etc., and provides handling operations for transmitted packets, such as clear, reject, and drop, etc., which allows modification of the network interface and source address. The above-described modifications to the network interface and specifying the source address of the shared network may be implemented via the IPtable below.
If the network interface for acquiring the data output of the VPN channel is ppp0, the source address of the VPN, that is, the IP address of the VPN, is acquired. Before the connection between the access channel and the VPN channel is established, the network interface for data input of the access channel is ap0, and the network interface for data output of the access channel is ap1, that is, if the second device accesses the access channel, the data of the second device enters from the network interface ap0 and exits from the network interface ap 1; the data of the first device comes out from the network interface ppp 0. Next, the network interface for data output of the access channel is changed to the network interface for data output of the VPN channel by using an instruction in the iptable, and the source address of the VPN is specified as the source address of the shared network. The specific code of the instruction may be:
iptables-t nat-A POSTROUTING-o ppp0-j MASQUERADE；
wherein, "-tnat" indicates that a nat table is specified; "-A POSTROUTING" indicates that the "POSTROUTING" rule is added; "-o ppp 0", indicating that the network interface of the data output of the access channel is changed to ppp 0; "-j MASQUERED" indicates that the source address of the VPN is designated as the source address of the shared network, and since different VPNs have different source addresses, the source address of the VPN can be automatically obtained by instructing "MASQUERED" in this embodiment.
In order to ensure the stability of the formation of the VPN shared channel, after the instruction, an instruction to refresh the network interface of the data output of the access channel and the source address of the shared network is executed. Such as a command, iptables-F.
It should be noted that, in order to ensure the stability of the formed VPN shared channel, before the VPN shared channel is formed, a system permission may also be obtained, where the system permission is used to grant a permission for establishing a connection between the access channel and the VPN channel.
Step 103: and responding to a network access request sent by the second device, and connecting the second device and the VPN shared channel.
Specifically, after the VPN shared channel is formed, a feedback message formed by the VPN shared channel may be sent to the second device; the second device may send a network access request to the first device after receiving the feedback message, and the first device connects the second device with the VPN sharing channel in response to the network access request, that is, data sent from the second device enters from a network interface of a data input of the VPN sharing channel and data flows out from a network interface of a data output of the VPN sharing channel, so that the second device accesses the VPN.
In addition, the second device may also directly send the network access request to the first device after a preset time period elapses after establishing connection with the first device, for example, after the first device opens the hotspot and the VPN, the second device directly sends the network access request to the first device after establishing connection with the first device for 20 seconds.
It will be appreciated that the number of second devices is at least 1, for example, the second devices are 2.
Compared with the prior art, in the embodiment of the invention, because only one device login is supported by one current VPN account, namely only one device is allowed to access the VPN through the login of the VPN account and the VPN channel corresponding to the account, a shared channel is formed by establishing the connection between the access channel and the VPN channel, and the second device and the VPN shared channel are connected in response to a network access request sent by the second device, so that the second device can access the VPN through the VPN shared channel after the first device accesses the VPN; because the VPN shared channel is formed by connecting the access channel and the VPN channel, the device can log in and use the same VPN channel at the same time, thereby improving the utilization rate of the VPN and reducing the use cost of the VPN.
A second embodiment of the present invention relates to a method of virtual private network VPN sharing. The second embodiment is a further improvement of the first embodiment, and the main improvements are as follows: in the second embodiment of the present invention, before acquiring the access tunnel and the VPN tunnel, it is further detected whether both the access tunnel and the VPN tunnel are opened. The specific flow of the virtual private network VPN sharing method is shown in fig. 2.
Step 201: detecting whether the access channel and the VPN channel are both opened, if not, executing step 202, otherwise, executing step 203.
Specifically, the network sharing function of the first device may be monitored, for example, whether the bluetooth function or the hotspot function is started or whether the connection is performed by using a USB connection mode may be monitored. Whether the VPN channel is opened or not is judged by monitoring whether the VPN is connected or not, for example, if the VPN is connected, the VPN channel is determined to be opened, and if the VPN is not connected, the VPN channel is determined not to be opened. If one of the access channel and the VPN channel is not opened, step 202 is executed, and if both the access channel and the VPN channel are opened, step 203 is executed.
Step 202: the channels that are not opened are opened.
Specifically, if the access channel is determined not to be opened, the access channel is opened, and if the VPN channel is determined not to be opened, the VPN channel is opened; and if the access channel and the VPN channel are not opened, opening the access channel and the VPN channel.
Step 203: and acquiring an access channel and a VPN channel.
Step 204: and establishing connection between the access channel and the VPN channel to form a VPN shared channel.
Step 205: and responding to a network access request sent by the second device, and connecting the second device and the VPN shared channel.
In the method for sharing a virtual private network VPN according to the present embodiment, it is detected whether both the access tunnel and the VPN tunnel are opened before the access tunnel and the VPN tunnel are acquired each time, so that it is ensured that a connection between the VPN tunnel and the access tunnel is established subsequently.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
A third embodiment of the present invention relates to a virtual private network VPN sharing apparatus 30, which has a specific configuration as shown in fig. 3, and includes: an obtaining module 301, a channel establishing module 302 and a connecting module 303.
The obtaining module 301 is configured to obtain an access channel and a VPN channel, where the access channel is used for network sharing between a first device and a second device, and the VPN channel is used for the first device to access a VPN. The channel establishing module 302 is configured to establish a connection between an access channel and a VPN channel to form a VPN shared channel; the connection module 303 is configured to, in response to a network access request sent by the second device, connect the second device and the VPN sharing channel.
It should be understood that this embodiment is an example of the apparatus corresponding to the first embodiment, and may be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.
A fourth embodiment of the present invention relates to an electronic device, which has a specific configuration as shown in fig. 4, and includes: at least one processor 401; and a memory 402 communicatively coupled to the at least one processor 401; the memory 402 stores instructions executable by the at least one processor 401, and the instructions are executed by the at least one processor 401 to enable the at least one processor 401 to execute the method for virtual private network VPN sharing according to the first embodiment or the second embodiment.
The memory 402 and the processor 401 are connected by a bus, which may include any number of interconnected buses and bridges that link one or more of the various circuits of the processor 401 and the memory 402. The bus may also link various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 401 may be transmitted over a wireless medium via an antenna, which may receive the data and transmit the data to the processor 401.
The processor 401 is responsible for managing the bus and general processing and may provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 402 may be used to store data used by the processor in performing operations.
A fifth embodiment of the present invention relates to a computer-readable storage medium storing a computer program which, when executed by a processor, implements the method for virtual private network VPN sharing in the first or second embodiment.
Those skilled in the art can understand that all or part of the steps in the method of the foregoing embodiments may be implemented by a program to instruct related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A Virtual Private Network (VPN) sharing method is applied to a first device and comprises the following steps:
acquiring an access channel and a VPN channel, wherein the access channel is used for network sharing between the first device and the second device, and the VPN channel is used for the first device to access a VPN;
establishing connection between the access channel and the VPN channel to form a VPN shared channel;
and responding to a network access request sent by the second equipment, and connecting the second equipment and the VPN shared channel.
2. The method according to claim 1, wherein the establishing of the connection between the access channel and the VPN channel to form a VPN shared channel specifically includes:
acquiring a network interface of data output of the VPN channel and acquiring a source address of the VPN;
changing a network interface of data output of the access channel into a network interface of data output of the VPN channel, and designating a source address of the VPN as a source address of a shared network to form a VPN shared channel;
the network interface for data input of the access channel is the network interface for data input of the VPN shared channel, and the network interface for data output of the VPN shared channel is the network interface for data output of the VPN shared channel.
3. The method of virtual private network VPN sharing according to claim 1 or 2, wherein before said obtaining the access tunnel and VPN tunnel, the method of virtual private network VPN sharing further comprises:
and detecting whether the access channel and the VPN channel are both opened, and if not, opening the channel which is not opened.
4. The method of virtual private network VPN sharing according to claim 1 or 2, wherein prior to said forming of the VPN sharing channel, the method of virtual private network VPN sharing further comprises:
and acquiring a system authority, wherein the system authority is used for granting the authority for establishing the connection between the access channel and the VPN channel.
5. Method for virtual private network VPN sharing according to any of claims 1 to 4, wherein the access tunnel comprises any of: hot spot channel, bluetooth channel and USB connected channel.
6. The method of virtual private network VPN sharing according to claim 2, wherein after changing the network interface of the data output of the access tunnel to the network interface of the data output of the VPN tunnel and specifying the source address of the VPN as the source address of the shared network, and before forming a VPN shared tunnel, the method of virtual private network VPN sharing further comprises:
a network interface to refresh data out of the access channel, and a source address of the shared network.
7. The method of virtual private network, VPN, sharing according to claim 1, characterised in that the number of second devices is at least 1.
8. An apparatus for Virtual Private Network (VPN) sharing, comprising: the device comprises an acquisition module, a channel establishing module and a connection module;
the acquisition module is used for acquiring an access channel and a VPN channel, wherein the access channel is used for network sharing between first equipment and second equipment, and the VPN channel is used for the first equipment to access a VPN;
the channel establishing module is used for establishing the connection between the access channel and the VPN channel to form a VPN shared channel;
the connection module is configured to connect the second device and the VPN shared channel in response to a network access request sent by the second device.
9. An electronic device, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of virtual private network, VPN, sharing according to any of claims 1-7.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method of virtual private network, VPN, sharing according to any of claims 1 to 7.
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| CN1260916C (en) * | 2002-11-21 | 2006-06-21 | 华为技术有限公司 | Method for realizing virtual specific network in ATM network |
| CN102625310B (en) * | 2012-03-13 | 2016-06-15 | 中国联合网络通信集团有限公司 | Wireless network access method, authentication method and device |
| CN105956496A (en) * | 2016-06-21 | 2016-09-21 | 新昌县七星街道明盛模具厂 | Security and secrecy method for sharing storage files |
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| CN104104569A (en) * | 2013-04-01 | 2014-10-15 | 华为技术有限公司 | VPN tunnel establishing method and server |
| CN106535094A (en) * | 2016-10-27 | 2017-03-22 | 乐视控股（北京）有限公司 | Method and device for sharing VPN and terminal device |
| CN109067718A (en) * | 2018-07-23 | 2018-12-21 | 浙江吉利汽车研究院有限公司 | Method, apparatus, the system of vehicle mounted multimedia host and mobile terminal sharing network |
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