CN101931663A - Method capable of dynamically setting domain name server and wireless communication terminal - Google Patents
Method capable of dynamically setting domain name server and wireless communication terminal Download PDFInfo
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Abstract
The invention provides a method capable of dynamically setting domain name server and a wireless communication terminal; the method comprises the followings: when the wireless communication terminal is power on, initializing a main DNS cache variant, an auxiliary DNS cache variant and a setting state variant; when launching dial connection process, detecting the parameter information of the dial connection; if the dial parameter information contains main DNS address and auxiliary DNS address, recording the DNS address and setting the setting state variant; detecting the setting state variant, and if setting the state variant, returning the cached main DNS address and auxiliary DNS address to user equipment when the wireless communication terminal is in DHCP or IPCP consultation with the user equipment; if not setting the state variant, returning the DNS address allocated by network to the user equipment. Compared with the prior art, the invention enables users to set appointed DNS address when processing data business through a wireless data card.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and mobile communication terminal that dynamically arranges name server.
Background technology
Along with the mobile radio telecommunications technology in the extensive use in the whole world with progressively popularize, wireless communication terminal product (data card of mobile phone, various interface, net book, built-in communication module, router etc.) also from the high-tech synonym and progressively transition be the daily necessities (even necessary article) of ordinary populace.The competition of each producer also is growing more intense on the market, how better to increase the function of product, improves the performance of product, constantly satisfies user's demand, makes end product have better user experience, becomes the hot issue that all big enterprises pay close attention to.
Existing wireless communication terminal product at first needs to initiate dialing procedure before carrying out data service, set up to be connected with the data of network.After dial-up connection is successfully set up, specify dns server address by core net, the user uses this dns address to carry out domain name mapping.Thisly distribute the mode of dns address unitedly by network, when a large amount of DNS demands for services was arranged at synchronization, the dns server of network appointment can block, thereby delayed the speed of user's browsing page; Under opposite extreme situations more, if the dns server of network appointment breaks down, can not provide the domain name mapping service, then will directly cause the user can't the normal browsing webpage.Simultaneously, in the application of reality, the user also wishes to use the dns server of appointment to carry out domain name mapping, rather than the dns address of single use network allocation.If, allow the user can select dns address flexibly for use so a kind of approach can be provided, then can solve the problem that network unified distribution dns address exists, satisfy user's demand simultaneously, promote user experience.
Radio communication terminal need be provided with the parameter of dial-up connection from the PC side by UI before dialing, for example, and APN, telephone number etc.Can provide the interface that dns address is set at the UI interface of PC side, but when UI is provided with the dns address of portable terminal dial-up connection at the API that calls the PC side, can run into the problem of operating right, for the user who does not have administrator right, when the PC side is provided with the operation of dns address, can be refused by the safety management strategy of PC side, thus it is infeasible at PC side UI the method for dns address to be set.Simultaneously, in up-to-date operating system, as WIN 7 operating systems, to the mode that adopts OID that is provided with of radio communication terminal parameter, and the instruction of DNS is not set in the mode of OID, so in these systems, must must develop the function that DNS can be set.
Summary of the invention
The objective of the invention is for addressing the above problem, and a kind of method and the mobile communication terminal that dynamically arranges name server that proposes.
For achieving the above object, the invention provides a kind of method that dynamically arranges name server, when wireless communication terminal powers on, initialization primary name server (DNS) buffer memory variable, auxilliary DNS buffer memory variable and state variable is set; When initiating the dial-up connection process, detect the parameter information of dial-up connection, if in dialing parameters information, include main dns address and auxilliary dns address, then write down dns address and install the configuration state variable; Having set up packet data protocol (PDP) data at network and wireless data card is connected, when returning network allocation to terminal information, detection is provided with state variable, if state variable set, then carry out DynamicHost when agreement (DHCP) or interconnection protocol control protocol (IPCP) negotiations process are set, the main dns address and the auxilliary dns address of buffer memory returned to subscriber equipment at wireless communication terminal and subscriber equipment; Do not have set if state variable is set, then the dns address with network allocation returns to subscriber equipment.
Further, described main DNS buffer memory variable, auxilliary DNS buffer memory variable recording user are finally wished the address of two dns servers obtaining.
Further, when the user needs domain name service, earlier analysis request is mail to the server that main dns address points to, if auxilliary dns server is then mail to analysis request in not response of primary dns server; Whether the state variable recording user is set needs to be provided with dns address, finally feeds back to user's dns address according to the value decision of state variable.
Further, when described dial-up connection initiation process was meant the dialing beginning, the data link between subscriber equipment and wireless communication terminal connected, and subscriber equipment is sent to wireless communication terminal with the parameter information of this dialing; The dns address information that is provided with is sent to wireless communication terminal by this data link, is connected with the PDP of network side set up finish after, the dns address of final affirmation is sent to subscriber equipment by this data link.
Further, described PDP data connect be meant the parameter information that wireless communication terminal receives that subscriber equipment sends after, an and packet data transmission link of setting up between the mobile communications network.
Further, the parameter information that wireless communication terminal connects PDP mails to network side holds consultation, and network side activates message with PDP and issues wireless communication terminal after parameter information is confirmed.When the PDP information reconciliation, the dns address information that wireless communication terminal can be sent subscriber equipment mails to network side, and network side directly returns the dns address of network side acquiescence.
Further, described DHCP or ipcp negotiation process are meant wireless communication terminal when having set up the wireless connections link with network, will return to subscriber equipment from the parameter information that network obtains.
In addition, the present invention also proposes a kind of wireless communication terminal that dynamically arranges name server, and described wireless communication terminal comprises that name server (DNS) application programming interface (API) module, DNS message processing module, network DNS information interaction module and DNS information are set returns module;
The described DNS of setting api interface module is used to make PC to call this interface dns address information is set;
Described DNS message processing module is used to accept the DNS information that PC is provided with, initialization DNS information setting state;
Described network DNS information interaction module is accepted the DNS information of dialing, and with network interaction DNS information parameter;
Described DNS information is returned module and is accepted the dns address information that network side returns, and according to the mechanism that the DNS message processing module is set, determines finally to return to the dns address information of PC.
Further, described DNS message processing module also is used to judge the flow process that is provided with to User DN S information.
Further, described network DNS information interaction module also is used for when the dialing beginning DNS information being mail to network side, activates the back at PDP and resolves dns address information.
The invention has the beneficial effects as follows: compared with prior art, the present invention is by analyzing the flow process of wireless communication terminal when dial-up connection is set up, provide a kind of method that dynamically arranges dns address to the user, make the user when carrying out data service by wireless data card, the dns address of appointment can be set by interface, thereby can use specific dns server to carry out domain name mapping.
Description of drawings
Fig. 1 is an embodiment of the invention wireless data card link model;
Fig. 2 sets up flow process for the dial-up connection of embodiment of the invention wireless data card;
Fig. 3 is an embodiment of the invention wireless data card DNS information transmission flow;
Fig. 4 is provided with DNS processing module figure for embodiment of the invention wireless data card;
Fig. 5 dynamically arranges the dns address flow chart for embodiment of the invention wireless data card.
Embodiment
The invention discloses a kind of wireless communication terminal when setting up dial-up connection, can dynamically arrange the method and the described wireless communication terminal of dns address.
The described method that dynamically arranges dns address mainly comprises: when wireless communication terminal powers on, and initialization master DNS buffer memory variable, auxilliary DNS buffer memory variable and state variable is set.When initiating the dial-up connection process, detect the parameter information of dial-up connection, if include main dns address and auxilliary dns address in dialing parameters information, then explanation need dynamically arrange dns address, the record dns address also installs the configuration state variable.Set up PDP (packet data protocol at network and wireless data card, Packet Data Protocol) data connect, when returning network allocation to terminal information, detection is provided with state variable, if state variable set, then carry out DynamicHost agreement (Dynamic HostConfiguration Protocol is set at portable terminal and subscriber equipment, DHCP) or interconnection protocol control protocol (InterWorking ProtocolControl Protocol, IPCP) during negotiations process, the main dns address and the auxilliary dns address of buffer memory returned to subscriber equipment; Do not have set if state variable is set, then do not make any modification, the dns address of network allocation is returned to subscriber equipment.
Described main DNS buffer memory variable, auxilliary DNS buffer memory variable are meant two variablees, and recording user is finally wished the address of two dns servers obtaining.When the user needs the domain name mapping service, earlier analysis request is mail to the server that main dns address points to, if auxilliary dns server is then mail to analysis request in not response of primary dns server.Whether the state variable recording user is set needs to be provided with dns address, finally feeds back to user's dns address according to the value decision of state variable.
When described dial-up connection initiation process was meant the dialing beginning, the data link between subscriber equipment and wireless communication terminal connected, and subscriber equipment is sent to wireless communication terminal with the parameter information of this dialing, for example: APN, dialed number, authentication mode etc.The dns address information that is provided with is sent to wireless communication terminal by this data link, is connected with the PDP of network side set up finish after, the dns address of final affirmation also is sent to subscriber equipment by this data link.
Described PDP data connect, be meant the parameter information that wireless communication terminal receives that subscriber equipment sends after, an and packet data transmission link of setting up between the mobile communications network.The parameter information that wireless communication terminal connects PDP mails to network side holds consultation, and network side activates message with PDP and issues wireless communication terminal after parameter information is confirmed.When the PDP information reconciliation, the dns address information that wireless communication terminal can be sent subscriber equipment mails to network side, but network survey general can be with reference to user's dns address, and directly return the dns address of network side acquiescence.
Described DHCP or ipcp negotiation process are meant wireless communication terminal when having set up the wireless connections link with network, will return to subscriber equipment from the parameter information that network obtains, and for example: network is the wireless communication terminal IP address allocated, dns address etc.Dhcp process is to adopt when the NDIS dial mode, adopts and the IPCP process is a PDP-IP mode in the RAS dial mode.
Below in conjunction with drawings and Examples technical scheme of the present invention is described in further detail.Technical solution of the present invention generally adopts the application model of TE+MT, and wherein (Terminal Equipment TE) is generally PC or notebook computer to terminal equipment, and (Mobile Terminal MT) is generally data card or mobile phone to portable terminal.In the following embodiments, described wireless communication terminal is the example explanation with the wireless data card.
As shown in Figure 1, be present embodiment wireless data card link model.Data card is between terminal equipment and the core network as a kind of portable terminal, when using wireless network, will set up the connection of terminal equipment to the RM interface of data card earlier, and then set up the connection that data snap into core network.This method is just launched on this dialing model.
As shown in Figure 2, set up flow process for the dial-up connection of present embodiment wireless data card.As shown in Figure 2, when terminal equipment need use wireless network, wireless data card was instructed in the dialing of initiating earlier dialing procedure, after wireless data is stuck in and receives the dialing instruction, parameter information to dialing is judged, if can dial, then returns the response that begins to dial.
Then, TE is the LCP link information in the RAS dial mode to the link configuration parameter information of wireless data card transmission RM mouth, is the QMI signaling information in the NDIS dial mode.Wireless data card is received link configuration information, as transmission block size, authentication mode, and agreement compression domain or the like, the DNS information that is provided with is also contained in this process, after judgement was finished to parameter information, wireless data card was replied parameter-configuring request, finishes the foundation of RM mouth link.
After the connection of RM mouth was set up, TE sent the request of network parameter information reconciliation to wireless data card, comprises IP address, dns address, pdp address, NBNS address or the like.After wireless data card is received request, promptly begin UM mouth link establishment process, send Activate PDP Context Request (activating the PDP Context request) to GGSN, set up the RAB of PDP Context, after GGSN passes through the request of TE, can return PDP context activation and accept to reply, in response message, include network allocation and give the IP address of TE, dns address or the like, finish the foundation of UM mouth.
After wireless data was stuck in the parameter information of receiving network allocation, soon these information returned to TE with the message of network parameter information answer, finished the process that one-stage dialing is set up.
As shown in Figure 3, be present embodiment wireless data card DNS information transmission flow figure.
At the beginning of each dialing,, issue the dns address information that needs by the interface of user by providing, when the user begins to dial, these information are issued to data card with the dialing instruction, after data card processes these dns address information, PDP is activated request be sent to network side.
Network is judged user's PDP activation solicited message, if legal, then gives the Internet resources of user's request for allocation, and presses the strategy distribution dns server address information of oneself, and the information that activates acceptance with PDP is sent to data card.
Wireless data card receive PDP that network beams back activate receive information after, therefrom obtain DNS information, the dns address information of wishing if not the user, then replace the dns address information of network allocation with the dns address of user's request, and this dns address information formed the response message of successful connection, return to user's PC.
User's PC obtains the dialing response message that data card is beamed back, and therefrom obtains dns address information, and is during browsing page, mutual with this name server afterwards as the dns address of this dial-up connection, carries out the domain name mapping service.
As shown in Figure 4, for being provided with DNS, the present embodiment wireless data card handles included module map.
Described data card comprises that DNS API (Application Programming Interface, application programming interface) interface module, DNS message processing module, network DNS information interaction module and DNS information are set returns module.
DNS api interface module is set: this module provides the interface that dns address is set, and is used to make PC to call this interface dns address information is set.
The DNS message processing module: this module is used to accept the DNS information that PC is provided with, and initialization DNS information setting state is judged the flow process that is provided with to User DN S information.
Network DNS information interaction module: this module is accepted the DNS information of this dialing, and with network interaction DNS information parameter, in when beginning dialing DNS information is mail to network side, activate the back at PDP and resolve dns address information.
DNS information is returned module: this module is accepted the dns address information that network side returns, and according to the mechanism that the DNS message processing module is set, determines finally to return to the dns address information of PC.
As shown in Figure 5, for the present embodiment wireless data card dynamically arranges the dns address flow chart, it comprises the steps:
Before dial-up connection is set up, by the interface that provides dns address information is set, the present invention provides two kinds of interface: AT orders, QMI instruction altogether.Wireless data card is preserved main dns address and the auxilliary dns address that TE is provided with, and mode bit set will be set.Can be at the NDIS during dialing by the dual mode setting, when dual mode is provided with simultaneously, with being as the criterion of last setting before the dialing beginning.
In the NDIS dial mode, the dns address that TE is provided with is issued to wireless data card in link negotiation information, so in the NDIS dial mode, need obtain the main DNS and the auxilliary DNS information of setting from the QMI signaling.
The parameter information that wireless data card issues TE, form and mail to network side after PDP activates request message, include DNS information in this message, but network side generally can not adopt the dns address in the message, turn back to wireless data card and the dns address of acquiescence is accepted message by the PDP activation.
Wireless data is judged the mode bit that DNS is set after being stuck in the PDP activation, if mode bit set then changes step 506 over to, need dynamically arrange dns address information, replaces the dns address of network allocation with the main dns address and the auxilliary dns address of buffer memory; If mode bit does not have set, then change step 507 over to, do not do setting, return the dns address of network allocation.
Wireless network card returns to TE with the parameter information of network allocation, and parameter information comprises the IP address, dns address, NBNS address.In the RAS dial mode, be to return to TE by IPCP configuration response message; Then be by dhcp process in the NDIS dial mode, network parameter information is returned to TE.The dns address information that comprises in network parameter information promptly is the dns address that TE is provided with, and so far finishes dynamically arranging of dns address.
By technique scheme, just can realize the needs of user according to oneself, the function of dns server address is set voluntarily, make wireless communication terminal have more operability, possess following characteristics simultaneously:
The setting of user's static state and network combine dynamic the distribution, if the user need use specific dns address, then can use the setting of this function; If the user does not need to specify dns address, any extra operation that then it goes without doing, and, can not increase inconvenience for the user directly by the dns address of network allocation acquiescence.
Simple to operate, flexible, the user only needs calling interface that two parameters are set to get final product, in use, a dns address can only be set, and another uses dns address of network acquiescence, as specific main DNS is set, and uses the auxilliary dns address of network allocation.
The user is not subjected to the restriction of operating right, in needs, can be provided with.
Support NDIS dialing and the RAS PDP-IP dial mode of WCDMA.
Need to prove, device involved in the present invention, in comprising embodiment the related module and unit, also comprise other element known in those skilled in the art, for outstanding invention thought of the present invention, only the module that relates to invention thought of the present invention is described in an embodiment of the present invention, known other element in the device is repeated no more.
Described above only is preferred embodiments of the present invention; certainly can not limit interest field of the present invention with this; therefore; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. method that can dynamically arrange name server is characterized in that: when wireless communication terminal powers on, and initialization primary name server DNS buffer memory variable, auxilliary DNS buffer memory variable and state variable is set; When initiating the dial-up connection process, detect the parameter information of dial-up connection, if in dialing parameters information, include main dns address and auxilliary dns address, then write down dns address and install the configuration state variable; Having set up packet data protocol PDP data at network and wireless communication terminal is connected, when returning network allocation to terminal information, detection is provided with state variable, if state variable set, then carry out DynamicHost when protocol DHCP or interconnection protocol control protocol ipcp negotiation process are set, the main dns address and the auxilliary dns address of buffer memory returned to subscriber equipment at wireless communication terminal and subscriber equipment; Do not have set if state variable is set, then the dns address with network allocation returns to subscriber equipment.
2. the method for claim 1 is characterized in that: described main DNS buffer memory variable, auxilliary DNS buffer memory variable recording user are finally wished the address of two dns servers obtaining.
3. the method for claim 1 is characterized in that: when the user needs domain name service, earlier analysis request is mail to the server that main dns address points to, if auxilliary dns server is then mail to analysis request in not response of primary dns server; Whether the state variable recording user is set needs to be provided with dns address, finally feeds back to user's dns address according to the value decision of state variable.
4. the method for claim 1, it is characterized in that: when described dial-up connection initiation process is meant the dialing beginning, data link between subscriber equipment and wireless communication terminal connects, and subscriber equipment is sent to wireless communication terminal with the parameter information of this dialing; The dns address information that is provided with is sent to wireless communication terminal by this data link, is connected with the PDP of network side set up finish after, the dns address of final affirmation is sent to subscriber equipment by this data link.
5. the method for claim 1 is characterized in that: described PDP data connect be meant the parameter information that wireless communication terminal receives that subscriber equipment sends after, an and packet data transmission link of setting up between the mobile communications network.
6. the method for claim 1 is characterized in that: the parameter information that wireless communication terminal connects PDP mails to network side holds consultation, and network side activates message with PDP and issues wireless communication terminal after parameter information is confirmed.When the PDP information reconciliation, the dns address information that wireless communication terminal can be sent subscriber equipment mails to network side, and network side directly returns the dns address of network side acquiescence.
7. the method for claim 1, it is characterized in that: described DHCP or ipcp negotiation process are meant wireless communication terminal when having set up the wireless connections link with network, will return to subscriber equipment from the parameter information that network obtains.
8. wireless communication terminal that can dynamically arrange name server, it is characterized in that: described wireless communication terminal comprises that domain name server (DNS) application programming interface API module, DNS message processing module, network DNS information interaction module and DNS information are set returns module;
The described DNS of setting api interface module is used to make PC to call this interface dns address information is set;
Described DNS message processing module is used to accept the DNS information that PC is provided with, initialization DNS information setting state;
Described network DNS information interaction module is accepted the DNS information of dialing, and with network interaction DNS information parameter;
Described DNS information is returned module and is accepted the dns address information that network side returns, and according to the mechanism that the DNS message processing module is set, determines finally to return to the dns address information of PC.
9. wireless communication terminal as claimed in claim 8 is characterized in that: described DNS message processing module also is used to judge the flow process that is provided with to User DN S information.
10. wireless communication terminal as claimed in claim 8 is characterized in that: described network DNS information interaction module also is used for when the dialing beginning DNS information being mail to network side, activates the back at PDP and resolves dns address information.
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