CN100490444C - Method for implementing protocol stack to support multiple product shapes - Google Patents
Method for implementing protocol stack to support multiple product shapes Download PDFInfo
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- CN100490444C CN100490444C CNB2004100041135A CN200410004113A CN100490444C CN 100490444 C CN100490444 C CN 100490444C CN B2004100041135 A CNB2004100041135 A CN B2004100041135A CN 200410004113 A CN200410004113 A CN 200410004113A CN 100490444 C CN100490444 C CN 100490444C
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Abstract
The method includes following parts: setting up user number of maximum subfunction forms of protocol stack; creating user attribute control table corresponding to the said user number set up; creating coincidence relation between users in upper level and user attribute control table; based on the said coincidence relation, the protocol stack completes sending and receiving message. In the invention, the protocol stack can support application form of multiple products and different sub function form of same product so as to realize separation between physical aggregation of multiple users' attributes and logic. Advantages are: service efficiency of product is raised; user's form can be added / deleted and modified dynamically. The invention uses hardware resources in farthest, raises use ratio of network resources so as to save cost.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to a kind of protocol stack of realizing and support the method for multiple product form.
Background technology
The day by day ripe and continuous expansion scale of current IP network development has also obtained using widely based on the voice protocol of packet network, such as H323 agreement existing large-scale application in IP phone gateway, video conference.As the H323 agreement of one of packet voice agreement, also released the protocol stack sofeware product of oneself, such as RADVision, Trillium etc. by numerous companies.Usually the H323 protocol stack product of industry release only is applied to a kind of product form when concrete the application, such as using on gatekeeper's equipment, perhaps only uses on gateway device.But actual conditions have requirements at the higher level sometimes: a kind of situation is to support the multiple product form simultaneously on same equipment, the equipment manufacturers that for example have are for economize on hardware resource or share I P address, on same equipment, support two kinds of forms of gatekeeper and gateway simultaneously, perhaps on same physical equipment, support gatekeeper and MCU (multipoint control unit) product form simultaneously.Another kind of situation is to require to support the identical product form on same equipment but realize different subfunctions or different operation flows, for example certain operator has a H323 gateway device, 1000 tunnel call capacity can be provided above, but may instant online user can not reach so many, at this moment it can adopt port to hire out strategy, for example current 300 tunnel call capacity are hired out to other operators, remaining 700 the tunnel to stay be that oneself uses.But may adopt different H323 business processing flows between two operators, for example the A Carrier Requirements opens function soon to the all-calls support, and the B Carrier Requirements is supported the T.38 fax flow process of H323 customization.This moment, the application of two operators operated on same the physical equipment, but externally need be presented as different logic forms, was transparent each other between two users.
At present some can support the multiple product form by a protocol stack operation process in the protocol stack product released of industry, and its framework as shown in Figure 1.But there is following shortcoming in the application of these products, its requirement must be passed through static configuration in advance when system start-up, the multiple user class or the product form of protocol stack support are configured, for example when system start-up, in advance this physical equipment is configured as and supports GK (gatekeeper) and MCU simultaneously.Support the method for multiple product form to lack flexibility by static configuration like this, for example online Applied Physics equipment begins only to have disposed 2 kinds of product form, and some resources have been reserved, prepare to restart the third product form in running, the method for available technology adopting static configuration can't realize.And prior art is not supported the realization of different subfunction forms under the identical product form yet.
Summary of the invention
The purpose of this invention is to provide a kind of protocol stack of realizing and support the method for multiple product form, to support different subfunction forms under the identical product form.
The objective of the invention is to be achieved through the following technical solutions:
A kind of protocol stack of realizing is supported the method for multiple product form, comprising:
The maximum subfunction form number of users of A, setting protocol stack;
The corresponding user property control table of maximum subfunction form number of users of B, foundation and the protocol stack of described setting;
C, set up the corresponding relation of upper-layer user and described user property control table;
D, described protocol stack finish the transmission and the reception of message according to the corresponding relation of the upper-layer user of described foundation and user property control table.
Described method also comprises:
In described protocol stack running, increase or deletion subfunction form user;
Revise the corresponding relation of described upper-layer user and user property control table according to the subfunction form number of users of reality.
Each described subfunction form user is corresponding to a sub-function logic entity.
Described step B comprises: the protocol stack index sign of setting described user property control table.
Described step C comprises:
C1, setting upper-layer user index sign;
The subfunction logic entity of C2, the described protocol stack of startup;
C3, set up the corresponding relation of described upper-layer user's index sign and described protocol stack index sign according to the subfunction logic entity of the protocol stack of described startup.
Described step C3 comprises:
C31, upper-layer user send upper-layer user's index sign of described setting to described protocol stack;
C32, described protocol stack will send described upper-layer user to corresponding to the protocol stack index sign of the user property control table of described subfunction logic entity;
C33, set up the corresponding relation of upper-layer user's index sign and protocol stack index sign.
Described step D comprises:
D1, according to the corresponding relation of upper-layer user's index of described foundation sign with protocol stack index sign, carry out user message and business flow processing, finish the transmission of message;
D2, according to the corresponding relation of upper-layer user's index of described foundation sign with protocol stack index sign, carry out protocol stack inside story and business flow processing, finish the reception of message.
Described step D1 comprises:
According to described upper-layer user the upper-layer user's index sign set up and the corresponding relation that the protocol stack index identifies, obtain and described upper-layer user's corresponding protocols stack index sign;
Corresponding user property control table customizes described protocol stack operation attribute according to described upper-layer user's corresponding protocols stack index sign, finishes the transmission of message.
Described step D2 comprises:
Set user's classification and matching method;
Described protocol stack will send the upper-layer user to user's relevant information of classifying in the message of receiving;
Described upper-layer user determines the message corresponding upper user index sign that described protocol stack is received according to user's classification and matching method of described setting;
Described protocol stack obtains the message corresponding protocols stack index sign of receiving with described protocol stack according to the corresponding relation of upper-layer user's index sign with the protocol stack index sign of described foundation;
The reception of message is finished in corresponding user property control table according to described protocol stack index sign.
Described user property control table comprises: class of subscriber, product form, subfunction form.
By above technical scheme provided by the invention as can be seen, the present invention makes protocol stack be conveniently used in multiple different situations: only a kind of product form on the same physical equipment, and different subfunction forms are not distinguished in inside; Multiple product form on the same physical equipment, the subfunction form is not distinguished in each product form inside; A kind of product form on the same physical equipment, the multiple subfunction form of inner differentiation; The same form of multiple product physically, the every kind of product form inside that depends on actual need can be distinguished the subfunction form again.Thereby can realize the physics polymerization and the logical separation of multiple user property.By dynamically additions and deletions and modification user form in equipment running process, made things convenient for user's operation, can maximally utilise physical equipment existing hardware resource simultaneously, improved the networking capability and the utilization rate of network resource of equipment, save cost.
Description of drawings
Fig. 1 is the effect schematic diagram when protocol stack is applied to the different product form in the prior art;
Fig. 2 is the effect schematic diagram when protocol stack is supported the multiple product form among the present invention;
Fig. 3 is the flow chart that the present invention realizes the method for protocol stack support multiple product form;
Fig. 4 is the inventive method user's invocation protocol stack application programming interfaces flow process at the middle and upper levels;
Fig. 5 is that protocol stack is received handling process after the message in the inventive method;
Fig. 6 is the corresponding relation schematic diagram of confirming mutually between protocol stack and upper layer logic user subject.
Embodiment
Core of the present invention is to utilize protocol stack to support the subfunction form of multiple product and with a kind of different subfunction forms of product form, makes the upper-layer user realize that logical separation, physics are unified; And in running, produce new form application and do not influence existing operating application by dynamic-configuration.Realization effect of the present invention as shown in Figure 2, H323 protocol stack upper-layer user is transparent each other, and can carry out dynamic additions and deletions and modification to the upper-layer user.
In order to make those skilled in the art person understand the present invention better, the present invention is described in further detail below in conjunction with drawings and embodiments.
With reference to Fig. 3, Fig. 3 is the flow chart that the present invention realizes the method for protocol stack support multiple product form, may further comprise the steps:
Step 301: set the maximum subfunction form number of users of protocol stack, make each subfunction form user corresponding to a sub-function logic entity.Wherein, the subfunction form comprises: the different sons of different user form, different product form and identical product are used form.In concrete the application, show as: only a kind of product form on the same physical equipment, different subfunction forms are not distinguished in inside; Multiple product form on the same physical equipment, the subfunction form is not distinguished in each product form inside; A kind of product form on the same physical equipment, the multiple subfunction form of inner differentiation; The same form of multiple product physically, the every kind of product form inside that depends on actual need can be distinguished the subfunction form again.
Step 302: set up the corresponding user property control table of maximum subfunction form number of users with the protocol stack of setting, in order to store the user attribute parameter of upper strata different user or product form or subfunction form.This table comprises: class of subscriber, product form, subfunction form.
Step 303: set the protocol stack index sign of user property control table, to distinguish different subfunction logic entities.
Step 304: set upper-layer user's index sign.Because protocol stack is presented as different logic entities to the upper-layer user, therefore need the upper-layer user transparent each other, a certain user need know other user on the same application protocol stack, identifies with the upper strata user index in the present invention and distinguishes different users.
Step 305: the subfunction logic entity that starts protocol stack.When a certain user in upper strata need use this protocol stack, need send instruction to protocol stack, start a new subfunction logic entity.
Step 306: the corresponding relation of setting up upper-layer user's index sign and protocol stack index sign according to the subfunction logic entity of the protocol stack that starts.
In order to identify the different user in upper strata, the upper-layer user is (can be when initial, also can be in system's running in system) when starting new subfunction logic entity, passes to the unique identification of one of protocol stack oneself; In order to allow the upper-layer user can index protocol stack inside when the use agreement stack to user property control table that should the user, protocol stack will send the upper-layer user to corresponding to the protocol stack index sign of the user property control table of described subfunction logic entity, use later on for the user; Protocol stack is also noted the system applies layer upper-layer user's index sign that passes is set down simultaneously.The corresponding relation of upper-layer user's index sign and protocol stack index sign can be set up in view of the above, and then the corresponding relation of upper-layer user and described user property control table can be set up.This corresponding relation can be safeguarded respectively by system applies layer and protocol stack, also can only be safeguarded by the system applies layer, when protocol stack need be inquired about this corresponding relation, Query Information is reported the system applies layer, by the system applies layer Query Result is returned to protocol stack again.
Step 307: according to the corresponding relation of upper-layer user's index sign of setting up, carry out user message and business flow processing, finish the transmission of message with protocol stack index sign.
When protocol stack is used as the initiator of message, because the upper-layer user has obtained the protocol stack index sign of the corresponding subfunction logic entity of protocol stack distribution when starting this user's form, the upper-layer user finds corresponding user property control table according to this protocol stack index sign of obtaining, customize described protocol stack operation attribute by this user property control table, fill this user message and the required attribute field of service interaction flow process, for example peer IP address, Control Parameter etc. are finished the transmission of message.
Step 308: according to the corresponding relation of upper-layer user's index sign of setting up, carry out protocol stack inside story and business flow processing, finish the reception of message with protocol stack index sign.Specifically can realize by following steps:
At first set user's classification and matching method;
After receiving message, protocol stack will send the upper-layer user to user's relevant information of classifying in the message of receiving;
The upper-layer user determines this message corresponding upper user index sign according to user's classification and matching method of described setting;
Then, protocol stack is according to the corresponding relation of upper-layer user's index sign of having set up with protocol stack index sign, the message corresponding protocols stack index sign of obtaining and receiving;
The reception of message is finished in corresponding user property control table according to protocol stack index sign.
When receiving the new information that extraneous physical equipment comes because message pathway is to arrive the upper-layer user again through protocol stack earlier, therefore this moment protocol stack and do not know this message this sends to which user of upper strata.So when protocol stack is used as the recipient of message, can find protocol stack and receive message corresponding upper user by increasing user's classification policy layer.
When searching protocol stack reception message corresponding upper user by user's classification policy layer, preestablish the matching process of oneself at this strategic layer by the upper-layer user, such as, can judge according to the address or the port of messaging, perhaps judge according to some feature field of carrying in the messaging.When receiving a message, protocol stack earlier message parse is finished, to (for example classify relevant information with the user in this message again, send IP address, port, identification of the manufacturer, the characteristic information field of message and resolve after message etc.) send user's classification policy layer on upper strata to, strategic layer is determined this message corresponding upper user index sign according to predefined user's classification and matching method; And then, find message corresponding protocols stack index sign therewith according to the corresponding relation of upper-layer user's index sign of having set up with protocol stack index sign.Then by upper-layer user index sign and the protocol stack index sign notification protocol stack of strategic layer with corresponding this message, protocol stack finds corresponding user property control table according to this index sign, then, carry out inside story of corresponding protocol stack and business flow processing, finish the reception of message.
Be further described below by the process that for example above-mentioned protocol stack is sent and receives message.
Upper-layer user's invocation protocol stack application programming interfaces flow process that reference is shown in Figure 4:
Suppose that there are two users on H323 protocol stack upper strata, the party A-subscriber is GW (gateway) product form, uses for the A of operator; The party B-subscriber is similarly the GW product form, uses for the B of operator.As user A and B respectively during the application programming interfaces (API) of invocation protocol stack, protocol stack provides different protocol stack index to identify HSTACK_A, HSTACK_B to A, party B-subscriber, and protocol stack index sign HSTACK_A, HSTACK_B correspond respectively to user A property control table and user B property control table; Protocol stack also needs the upper-layer user that the different index sign HSUBSCRIBER_A of oneself is provided for the index upper-layer user simultaneously, and HSUBSCRIBER_B gives protocol stack.So just set up the corresponding relation of user index sign HSUBSCRIBER_A and protocol stack index sign HSTACK_A, and the corresponding relation of user index sign HSUBSCRIBER_B and protocol stack index sign HSTACK_B.Like this, user A can fill this user message and the required attribute field of service interaction flow process according to the user A property control table of protocol stack index sign HSTACK_A correspondence, for example peer IP address, Control Parameter etc. are finished the message sending function of user A gateway.User B then fills this user message and the required attribute field of service interaction flow process according to the user B property control table of protocol stack index sign HSTACK_B correspondence, finishes the message sending function of user B gateway.
Refer again to the handling process after protocol stack shown in Figure 5 is received message:
After the H323 protocol stack is received message 1, to send user's classification policy layer on upper strata to user's relevant information of classifying in this message, strategic layer is determined this message corresponding upper user index sign HSUBSCRIBER_A according to predefined user's classification and matching method; And then, find and message 1 corresponding protocols stack index sign HSTACK_A according to the corresponding relation of upper-layer user's index sign of having set up with protocol stack index sign.Then by upper-layer user index sign HSUBSCRIBER_A and the protocol stack index sign HSTACK_A notification protocol stack of strategic layer with corresponding message 1, protocol stack finds corresponding user A property control table according to index sign HSTACK_A, then, carry out inside story of corresponding protocol stack and business flow processing by user A property control table, send message 1 to user A.Equally, after protocol stack is received message 2, by with message 1 similar processing procedure, send message 2 to user B.
The detailed process that protocol stack is treated different subfunction differentiating forms as message originator and recipient has been described respectively above.In these processes, the corresponding relation of confirming mutually between protocol stack and upper layer logic user subject as shown in Figure 6.
User's use for convenience, the inventive method also are supported in dynamically additions and deletions and the characteristic of revising user class in system's running.Mention in the step 301 of Fig. 3 in the above: set the maximum subfunction form number of users of protocol stack, make each subfunction form user corresponding to a sub-function logic entity.Wherein, the subfunction form comprises: the different sons of different user form, different product form and identical product are used form.
When system begins to use, the user may not can use many like this subfunction forms, when in running, needing suddenly to increase a sub-function user form, obtain idle protocol stack index sign as long as call the corresponding application function interface, set up the corresponding relation of this upper-layer user and user property control table, successively this user property is configured in the user property control table again, just can be according to the common together use agreement stack of the user that own needs move with the front, protocol stack does not have respectively fully to old and new users's effect, also can realize logical separation between each user, transparent each other.Operational effect is seen shown in Figure 2.
When in running, needing to delete a sub-function user form, as long as this upper-layer user that deletion has been set up and the corresponding relation of user property control table, when protocol stack is received new message, disconnect and being connected of this upper-layer user because of can not find upper-layer user, showing corresponding to this message.
Though in an embodiment of the present invention, be that example has been made detailed description to the inventive method with the H323 protocol stack, it will be recognized by those skilled in the art that the inventive method is not limited to the H323 protocol stack, change a little, this method can be applied to other protocol stack.Therefore anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Use realization protocol stack provided by the invention and support the method for multiple product form, can only move a protocol stack process under current real time operating system and support multiple product logic form simultaneously, protocol stack also externally is presented as different logical protocol stack forms simultaneously.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (10)
1, a kind of protocol stack of realizing is supported the method for multiple product form, it is characterized in that described method comprises:
The maximum subfunction form number of users of A, setting protocol stack;
The corresponding user property control table of maximum subfunction form number of users of B, foundation and the protocol stack of described setting;
C, set up the corresponding relation of upper-layer user and described user property control table;
D, described protocol stack finish the transmission and the reception of message according to the corresponding relation of the upper-layer user of described foundation and user property control table.
2, realization protocol stack as claimed in claim 1 is supported the method for multiple product form, it is characterized in that described method also comprises:
In described protocol stack running, increase or deletion subfunction form user;
Revise the corresponding relation of described upper-layer user and user property control table according to the subfunction form number of users of reality.
3, realization protocol stack as claimed in claim 1 or 2 is supported the method for multiple product form, it is characterized in that each described subfunction form user is corresponding to a sub-function logic entity.
4, realization protocol stack as claimed in claim 1 is supported the method for multiple product form, it is characterized in that described step B comprises: the protocol stack index sign of setting described user property control table.
5, realization protocol stack as claimed in claim 4 is supported the method for multiple product form, it is characterized in that described step C comprises:
C1, setting upper-layer user index sign;
The subfunction logic entity of C2, the described protocol stack of startup;
C3, set up the corresponding relation of described upper-layer user's index sign and described protocol stack index sign according to the subfunction logic entity of the protocol stack of described startup.
6, realization protocol stack as claimed in claim 5 is supported the method for multiple product form, it is characterized in that described step C3 comprises:
C31, upper-layer user send upper-layer user's index sign of described setting to described protocol stack;
C32, described protocol stack will send described upper-layer user to corresponding to the protocol stack index sign of the user property control table of described subfunction logic entity;
C33, set up the corresponding relation of upper-layer user's index sign and protocol stack index sign.
7, as the method for claim 5 or 6 described realization protocol stacks support multiple product forms, it is characterized in that described step D comprises:
D1, according to the corresponding relation of upper-layer user's index of described foundation sign with protocol stack index sign, carry out user message and business flow processing, finish the transmission of message;
D2, according to the corresponding relation of upper-layer user's index of described foundation sign with protocol stack index sign, carry out protocol stack inside story and business flow processing, finish the reception of message.
8, realization protocol stack as claimed in claim 7 is supported the method for multiple product form, it is characterized in that described step D1 comprises:
According to described upper-layer user the upper-layer user's index sign set up and the corresponding relation that the protocol stack index identifies, obtain and described upper-layer user's corresponding protocols stack index sign;
Corresponding user property control table customizes described protocol stack operation attribute according to described upper-layer user's corresponding protocols stack index sign, finishes the transmission of message.
9, realization protocol stack as claimed in claim 7 is supported the method for multiple product form, it is characterized in that described step D2 comprises:
Set user's classification and matching method;
Described protocol stack will send the upper-layer user to user's relevant information of classifying in the message of receiving;
Described upper-layer user determines the message corresponding upper user index sign that described protocol stack is received according to user's classification and matching method of described setting;
Described protocol stack obtains the message corresponding protocols stack index sign of receiving with described protocol stack according to the corresponding relation of upper-layer user's index sign with the protocol stack index sign of described foundation;
The reception of message is finished in corresponding user property control table according to described protocol stack index sign.
10, realization protocol stack as claimed in claim 1 is supported the method for multiple product form, it is characterized in that described user property control table comprises: class of subscriber, product form, subfunction form.
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