CN113765802A - android device network card dynamic switching method, system, terminal and storage medium - Google Patents
android device network card dynamic switching method, system, terminal and storage medium Download PDFInfo
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- CN113765802A CN113765802A CN202110843209.4A CN202110843209A CN113765802A CN 113765802 A CN113765802 A CN 113765802A CN 202110843209 A CN202110843209 A CN 202110843209A CN 113765802 A CN113765802 A CN 113765802A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/54—Organization of routing tables
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Abstract
The invention relates to a method for dynamically switching network cards of android devices, which comprises the following steps: selecting the function of the network card as a routing forwarding function or a data packet receiving function; carrying out conversion adjustment of the network card state according to the selection result in the first step; by the method, dynamic switching of the network card can be realized, so that the data receiving and transmitting functions and the data forwarding functions of the network card can be more fully exerted, the network card is fully utilized, the functional diversity of a product is improved, and the product value is improved.
Description
Technical Field
The invention relates to the technical field of android systems, in particular to a method, a system, a terminal and a storage medium for dynamically switching network cards of android devices.
Background
Currently, android products are widely used in various fields of various industries, such as internet terminals, industrial control system terminals, virtual server client terminals, and the like, and networks are used in these fields. The main network module of the android device is an ethernet network card, and the android device can be connected to an external network through the ethernet network card. However, the network card has a data forwarding function (i.e., routing forwarding) in addition to transmitting/receiving data, but the android device generally uses only one of the functions, i.e., data transmission and reception, and cannot fully exert all functions of the network card.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for dynamically switching an android device network card, a system for dynamically switching an android device network card, a terminal for dynamically switching an android device network card, and a computer-readable storage medium, aiming at the above-mentioned defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method for dynamically switching network cards of android devices is constructed, wherein the method comprises the following steps:
the first step is as follows: selecting the function of the network card as a routing forwarding function or a data packet receiving function;
the second step is that: and carrying out conversion adjustment of the network card state according to the selection result in the first step.
The invention relates to a network card dynamic switching method of an android device, wherein when a route forwarding function is selected, a network card state adjusting method comprises the following steps:
setting an ip address of a network card, creating a routing table, creating a use rule of the routing table, creating a forwarding rule, enabling a forwarding function of the network card, and forwarding a network data packet.
The invention relates to a network card dynamic switching method of an android device, wherein when a data packet receiving function is selected, a network card state adjusting method comprises the following steps:
deleting the route forwarding rule, deleting the route table forwarded by the route, deleting the route table use rule forwarded by the route, closing the network card forwarding function, restarting the network card, and receiving and sending network data packets.
According to the method for dynamically switching the network cards of the android devices, the network card functions are selected through a UI (user interface) in the first step.
A network card dynamic switching system of an android device is used for realizing the network card dynamic switching method of the android device, and comprises a network card function selecting unit and a network card state adjusting unit;
the network card function selection unit is used for selecting the function of the network card as a route forwarding function or a data packet receiving function;
and the network card state adjusting unit is used for carrying out conversion adjustment on the network card state according to the selection result of the network card function selecting unit.
The system for dynamically switching the network card of the android device, disclosed by the invention, has the advantages that when the routing forwarding function is selected, the network card state adjusting unit performs the following operations on the network card: setting an ip address of a network card, creating a routing table, creating a use rule of the routing table, creating a forwarding rule, enabling a forwarding function of the network card, and forwarding a network data packet.
The system for dynamically switching the network card of the android device, disclosed by the invention, comprises a network card state adjusting unit and a network card switching unit, wherein when a data packet receiving function is selected, the network card state adjusting unit performs the following operations on the network card: deleting the route forwarding rule, deleting the route table forwarded by the route, deleting the route table use rule forwarded by the route, closing the network card forwarding function, restarting the network card, and receiving and sending network data packets.
The network card dynamic switching system of the android device, provided by the invention, is characterized in that the selection of the network card function selection unit is realized through a UI (user interface).
A terminal for dynamically switching network cards of android devices comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the steps of the method are realized when the processor executes the computer program.
A computer-readable storage medium, in which a computer program is stored, wherein the computer program, when being executed by a processor, carries out the steps of the method as set forth above.
The invention has the beneficial effects that: by the method, dynamic switching of the network card can be realized, so that the data receiving and transmitting functions and the data forwarding functions of the network card can be more fully exerted, the network card is fully utilized, the functional diversity of a product is improved, and the product value is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
fig. 1 is a flowchart of a method for dynamically switching network cards of android devices according to a preferred embodiment of the present invention;
fig. 2 is a flowchart of a method for adjusting a routing forwarding function of a dynamic network card switching method of an android device according to a preferred embodiment of the present invention;
FIG. 3 is a flowchart illustrating a packet receiving function adjusting method for dynamically switching network cards of an android device according to a preferred embodiment of the present invention;
fig. 4 is a schematic block diagram of a system for dynamically switching network cards of android devices according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
As shown in fig. 1, with reference to fig. 2 and fig. 3, the method for dynamically switching network cards of an android device in the preferred embodiment of the present invention includes the following steps:
s01: selecting the function of the network card as a routing forwarding function or a data packet receiving function;
s02: carrying out conversion adjustment of the network card state according to the selection result in the first step;
by the method, dynamic switching of the network card can be realized, so that the data receiving and transmitting functions and the data forwarding functions of the network card can be more fully exerted, the network card is fully utilized, the functional diversity of a product is improved, and the product value is improved.
Preferably, when the routing forwarding function is selected, the network card status adjusting method is as follows:
s021: setting an ip address of a network card;
the ip address of the network card can be set through the ifconfig instruction, the network card is used as a route, and the ip address is the gateway address at the moment; eg: ifconfig eth0192.168.1.1;
s022: creating a routing table;
a routing table can be created through an ip route add instruction, and a route for forwarding a 4g network and an Ethernet network route are added;
eg: creating a routing table 88, adding a route, and taking forwarding to a 4g network as an example, an ip route add Ethernet network address deveth 0 proto static scan link table 88; ip route add default via 4g module gateway address dev ppp0 protostatic table 88;
s023: creating a routing table usage rule;
the use rule of the routing table can be established through an ip rule add instruction;
eg:
ip rule add from all oif ppp0 lookup 88；
ip rule add from all fwmark 0x10064/0x1ffff lookup 88；
ip rule add from all oif ppp0 lookup 88；
ip rule add from all fwmark 0x64/0x1ffff lookup 88；
ip rule add from all fwmark 0x0/0xffff lookup 88；
s024: creating a forwarding rule;
the forwarding rule can be established through an iptables instruction;
eg：
iptables-tnat-I POSTROUTING-s Ethernet network address-o;
s025: enabling a network card forwarding function;
s026: and forwarding the network data packet.
Preferably, when the data packet receiving function is selected, the network card status adjusting method is as follows:
s031: deleting the route forwarding rule;
the data may be encoded by the iptables instruction, eg:
iptables-t nat–F；
s032: deleting the routing table forwarded by the route;
the instruction may be executed via an ip route del instruction, eg:
ip route del Ethernet network address deveth 0 proto static scan link table 88;
ip route del default via 4g module gateway address dev ppp0 protostatic table 88;
s033: deleting the routing table use rule forwarded by the route;
the instruction can be realized by an ip rule del instruction, eg:
ip rule del from all oif ppp0 lookup 88；
ip rule del from all fwmark 0x10064/0x1ffff lookup 88；
ip rule del from all oif ppp0 lookup 88；
ip rule del from all fwmark 0x64/0x1ffff lookup 88；
ip rule del from all fwmark 0x0/0xffff lookup 88；
s034: the forwarding function of the network card is closed;
the method can be implemented by instructions to:
echo 0>/proc/sys/net/ipv4/ip_forward；
s035: restarting the network card;
the method can be implemented by instructions to:
EthernetManager.setEthernetEnabled(false)；
EthernetManager.setEthernetEnabled(true)；
s036: and receiving and transmitting network data packets.
Of course, it is understood that other existing instruction using modes capable of realizing required functions can be realized, and simple transformation based on the principle belongs to the protection scope of the present application;
preferably, the selection of the network card function in the first step is realized through a UI interface.
A system for dynamically switching network cards of android devices is used for realizing the method for dynamically switching the network cards of the android devices, and comprises a network card function selection unit 1 and a network card state adjustment unit 2 as shown in FIG. 4;
a network card function selecting unit 1, configured to select a network card function as a route forwarding function or a data packet receiving function;
the network card state adjusting unit 2 is used for carrying out conversion adjustment on the network card state according to the selection result of the network card function selecting unit;
by the method, dynamic switching of the network card can be realized, so that the data receiving and transmitting functions and the data forwarding functions of the network card can be more fully exerted, the network card is fully utilized, the functional diversity of a product is improved, and the product value is improved.
Preferably, when the routing forwarding function is selected, the network card state adjusting unit 2 performs the following operations on the network card: setting an ip address of a network card, creating a routing table, creating a use rule of the routing table, creating a forwarding rule, enabling a forwarding function of the network card, and forwarding a network data packet.
Preferably, when the packet receiving function is selected, the network card state adjusting unit 2 performs the following operations on the network card: deleting the route forwarding rule, deleting the route table forwarded by the route, deleting the route table use rule forwarded by the route, closing the network card forwarding function, restarting the network card, and receiving and sending network data packets.
Preferably, the selection of the network card function selecting unit 1 is realized through a UI interface.
A terminal for dynamically switching network cards of android devices comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the steps of the method are realized when the processor executes the computer program.
A computer-readable storage medium, in which a computer program is stored, wherein the computer program, when being executed by a processor, carries out the steps of the method as set forth above.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A method for dynamically switching network cards of android devices is characterized by comprising the following steps:
the first step is as follows: selecting the function of the network card as a routing forwarding function or a data packet receiving function;
the second step is that: and carrying out conversion adjustment of the network card state according to the selection result in the first step.
2. The method for dynamically switching the network cards of the android devices according to claim 1, wherein when the routing forwarding function is selected, the method for adjusting the network card status is as follows:
setting an ip address of a network card, creating a routing table, creating a use rule of the routing table, creating a forwarding rule, enabling a forwarding function of the network card, and forwarding a network data packet.
3. The android device network card dynamic switching method of claim 1 or 2, wherein when the packet receiving function is selected, the network card state adjusting method is as follows:
deleting the route forwarding rule, deleting the route table forwarded by the route, deleting the route table use rule forwarded by the route, closing the network card forwarding function, restarting the network card, and receiving and sending network data packets.
4. The android device network card dynamic switching method of claim 1 or 2, wherein the selection of the network card function in the first step is realized through a UI (user interface).
5. A system for dynamically switching network cards of android devices is used for realizing the method for dynamically switching the network cards of the android devices as claimed in any one of claims 1 to 4, and is characterized by comprising a network card function selection unit and a network card state adjustment unit;
the network card function selection unit is used for selecting the function of the network card as a route forwarding function or a data packet receiving function;
and the network card state adjusting unit is used for carrying out conversion adjustment on the network card state according to the selection result of the network card function selecting unit.
6. The system for dynamically switching the network card of the android device of claim 5, wherein when the routing forwarding function is selected, the network card state adjusting unit performs the following operations on the network card: setting an ip address of a network card, creating a routing table, creating a use rule of the routing table, creating a forwarding rule, enabling a forwarding function of the network card, and forwarding a network data packet.
7. The android device network card dynamic switching system of claim 5 or 6, wherein when the packet receiving function is selected, the network card state adjusting unit performs the following operations on the network card: deleting the route forwarding rule, deleting the route table forwarded by the route, deleting the route table use rule forwarded by the route, closing the network card forwarding function, restarting the network card, and receiving and sending network data packets.
8. The android device network card dynamic switching system of claim 5 or 6, wherein the selection of the network card function selecting unit is realized through a UI interface.
9. An android device network card dynamic switching terminal, comprising a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor implements the steps of the method according to any one of claims 1 to 4 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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