CN100387004C - Protocol testing apparatus and method thereof - Google Patents
Protocol testing apparatus and method thereof Download PDFInfo
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- CN100387004C CN100387004C CNB2005101149531A CN200510114953A CN100387004C CN 100387004 C CN100387004 C CN 100387004C CN B2005101149531 A CNB2005101149531 A CN B2005101149531A CN 200510114953 A CN200510114953 A CN 200510114953A CN 100387004 C CN100387004 C CN 100387004C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
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Abstract
The present invention provides a device for testing a protocol, which comprises a first interface unit, a second interface unit, a protocol stack analyzing unit, a protocol testing unit, a control unit and a management unit. The present invention also provides a method for testing the protocol. The device for testing the protocol is connected between a source device and a target device. The method comprises the steps that a first message packet sent by the source device is obtained, and the contents of the packet is modified according to a test rule; sending the modified packet to destination device; analyzing whether packet of response message is a packet accorded with stated test rules. By using the present invention, the completeness of the test is realized, and the test under an abnormal condition can be rapidly simulated.
Description
Technical field
The present invention relates to technical field of measurement and test, be meant a kind of protocol testing device and method of testing especially.
Background technology
Show the NGN network as Fig. 1, wherein, (ABNF is an a kind of grammatical form of describing communication protocol to adopt ABNF between media gateway (MG) and the soft switch (Soft Switch), can be referring to RFC 2234) agreement described of the syntax (for example H.248, MGCP or SIP etc.) carries out communication, and described MG comprises Trunk Media Gateway, access media gateway (AMG), Integrated Access Device etc.Along with the maturation gradually of NGN network, the device intercommunicating test of different manufacturers is also carried out gradually.
For NGN, this network packet contains different equipment, may use different agreements or signaling between the distinct device.For example, the PSTN side is called out in the process of IAD, finishes the mutual agreement of message related to calls and just comprises arrowband SS7 (ISUP) agreement, broadband signalling M2UA (being carried on the SCTP), H.248 agreement and MGCP agreement.In order to guarantee the intercommunication between the distinct device, so the test of the agreement under the NGN becomes more important.
Present protocol test is normally simulated the agreement that an equipment is moved between opposite end transmission message is tested.Referring to being that example describes so that TMG is tested shown in Fig. 2.In the example shown in Fig. 2, a testing apparatus simulation soft switch (Soft Switch) is formed a network with TMG.
When test, TMG can register to the testing apparatus of simulation soft switch; Afterwards, testing apparatus is according to the flow process of customization, and the simulation soft switch sends message to TMG, and receives the message that TMG returns, and then message is analyzed to reach the purpose of test.For example, testing apparatus simulation soft switch sends a H.248 message, and receives the message that TMG returns, and the whether requirement of protocol compliant of message of this process can be checked, be analyzed to testing apparatus then.
This method of testing needs in the testing apparatus analog network equipment to finish test, is difficult to the comprehensively whole flow processs of test, more difficult completeness of carrying out test protocol in a real actual network.This be because, for the test under this method, need to record on the testing apparatus complete flow process, carrying out information interaction based on flow process with equipment under test, and live in the common Turin of flow process and complicated, and the flow process of different vendor may be also inequality.So simulation softward be difficult to adapt to different vendor's equipment, be difficult to realize the completeness of testing.On the other hand, because the flow process of storage can not be the various situations that truly can run into, therefore can't simulate truth, and handle the special test under some truths.For example, in the time will testing between soft switch and the PSTN network signaling, but when requiring to have SGW (SG), it is complicated that the signaling of this moment can become, and is difficult to finish test by testing apparatus.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of protocol testing device and method of testing, realizing the completeness of test, and can simulate the test under the abnormal conditions fast.
Protocol testing device provided by the invention comprises:
First interface unit is used to receive first message packet from source device, and described first message packet is sent to the protocol stack analytic unit;
Second interface unit, second interface unit is used for the message that the protocol test unit sends is sent to external network; And the response message message that receives from destination device sends to the protocol stack analytic unit with described response message message then;
The protocol stack analytic unit is used for the packet parsing that the first/the second interface unit sends is gone out the structure of this message, and sends the protocol test unit to;
The protocol test unit is used for according to test order, and first message packet after the parsing that the protocol stack analytic unit is sent is made amendment, and amended message is sent to second interface unit; And whether the response message message after the parsing that sends of analysis confirmation protocol stack analytic unit is satisfactory message;
Control unit is used for each unit co-ordination of control protocol testing apparatus.
Wherein, further comprise: administrative unit is used to realize the modification to described test order, and protocol test element analysis result is shown to the user.
Wherein, described the first/the second interface unit comprises: COM port com component interface and/or TCL TCL protocol interface and/or OO interpreted language Python protocol interface.
A kind of protocol testing method provided by the invention is connected protocol testing device between source device and the destination device, and this method may further comprise the steps:
A, obtain first message packet that source device sends, revise described content of message, amended message is sent to destination device according to test order;
B, obtain destination device, analyze the message that should receive whether described response message message meets the test order regulation the described response message message of revising the back message.
Wherein, further comprise behind the step B: described response message message is revised as the response message message of first message packet, and sends to source device.
Wherein, the step of the described message content of the described modification of steps A comprises: each part that parses described first message packet that is received; According to test order the content of one or more parts of the message that parses is made amendment, added or deletes.
Wherein, the step of described parsing is: determine mutual employed agreement between source device and the destination device; Use the message structure of described agreement defined that described first message packet that receives is resolved.
Wherein, the described analyzing responding message packet of the step B step that whether meets the message that should receive of test order regulation comprises: each part structure whether protocol compliant requires of analyzing described message structure; Or/and, analyze the attribute whether every content of each composition of described message structure requires with protocol compliant; Or/and whether every content of each composition of analyzing described message structure is reasonable.
Wherein, the described mode of obtaining of step B comprises: the mode by Message Agent is obtained; Or, obtain by the mode of route.
Wherein, this method further comprises: the result that will analyze offers the user.
By said method as can be seen, the present invention is because testing apparatus directly is placed in the middle of the network agreement completeness in almost the same with the true environment test network between two equipment.And owing to the interaction flow that does not need to simulate between the two complete equipment, so the quantity of compile script significantly reduces.
The structure that the present invention adopts can only need to change protocol stack just can test different agreements.All protocol test operations are the same, and test contents is extensive, and the reduction instrument uses difficulty.
Description of drawings
Fig. 1 is the NGN network diagram.
The schematic diagram that Fig. 2 tests TMG for prior art.
Fig. 3 is a testing apparatus structure chart of the present invention.
Fig. 4 is placed on the schematic diagram in the network when testing for testing apparatus of the present invention.
Flow chart when Fig. 5 tests for testing apparatus of the present invention.
Embodiment
The invention provides a kind of protocol testing device and method of testing, during test, protocol testing device of the present invention places the circuit of network, and a side apparatus sends to the message of testing apparatus in the reception network, testing apparatus is revised message packet according to the requirement of test, sends to opposite side equipment again; And after opposite side equipment returns the message of coming and send to testing apparatus, testing apparatus is to analyzing this message according to aforesaid test request, be transmitted to the equipment of original side after revising message packet afterwards again, thereby reach the purpose that the agreement between two equipment is tested.Generally speaking, the present invention differentiates by catching, and revises, and sends the modification of message to agreement flow process and protocol fields, and whether test protocol transmission fast is normal.
Also the present invention is described in detail in conjunction with the embodiments referring to accompanying drawing.
Show protocol testing device structure chart of the present invention as Fig. 3, comprising: first interface unit, protocol stack analytic unit, protocol test unit, second interface unit, control unit, administrative unit.Wherein, details are as follows in each unit:
First interface unit, second interface unit are used for the transmitting-receiving of protocol massages, and when the message that receives from the protocol testing device outside, and the notice control unit sends to message the protocol stack analytic unit under the control of control unit.Wherein, according to the difference of test protocol, the interface of interface unit can be com component interface, TCL (control language) protocol interface, Python (OO interpreted language) protocol interface etc.
The protocol stack analytic unit is used for the message received resolving as the ABNF syntax according to certain syntax, parse the structure of this message, and the message after will resolving sends to the protocol test unit under the control of control unit.Described parsing refers to a series of word string code analysis of receiving are gone out the structure of protocol requirement, as: the 3D68S6H3G character string that receives is resolved to according to the ABNF syntax: information such as source address, destination address, protocol contents.
Specifically, because institute's information transmitted is to form according to the syntax of the agreement of institute's use agreement defined, therefore, the syntax according to the rules must be come out the structure elucidation of agreement.
The protocol test unit is used for according to the message after the predetermined rule analysis parsing, comprises each part form whether protocol compliant requires of the structure of the message that analytic solution is separated out, and whether described message meets the message content of flow process requirement etc.; And according to the requirement of setting to the information in the message structure make amendment (revise, add, deletion), such as with H248 protocol massages mid field [129.10.10.1]: 2944 are revised as [129.1.1.1]: 2940, and amended message is reassembled into message, as revert to the word string code, send to interface unit.Wherein, the different requirement that the information in the message structure of setting is made amendment can be written as different scripts, and is stored in advance in the protocol test unit, when needing, calls corresponding script and gets final product.
Control unit is used for controlling the coordination of each unit in the whole flow process.Comprise reception, the forwarding of control interface unit to message, control protocol stack analytic unit is carried out and is resolved a series of actions such as control protocol test cell analytical test, modification, reconstructed file.The specific implementation of these actions can be realized by calling of the corresponding scripts that control unit is stored.The present invention is by to the analysis of message, modification, analyze, differentiate the response message of revising after the back sends, thereby realizes the test to agreement.
Administrative unit provides the interface to control unit, can revise script file and be handed down to protocol test unit and control unit by administrative unit, and protocol test element analysis result is offered the user by administrative unit.Provide user interface can be used for editing the TCL script, and the script case management, also have the script operation, stop, waiting script control, show the display unit of information in the running in addition.
Be example with protocol test H.248 below, test whether protocol compliant of soft switch issues in the calling procedure ADD message, and check whether correct TMG handles to the ADD Message Processing of the wrong version that issues number.
Testing apparatus of the present invention as shown in Figure 4 is placed on the schematic diagram in the network when testing, in the information exchange of PSTN and soft switch, testing apparatus interception of the present invention (is the described MGC in back by soft switch, MGC is a Media Gateway Controller, a part that belongs to soft switch) H.248 message is after discovery is ADD message, according to the grammatical call format of agreement, check to constitute the whether requirement of protocol compliant of each field data of this message, to finish test request to soft switch; Be forwarded to TMG again after according to test request this message version number being made amendment again,,, check that whether response message is correct, finishes test according to the grammatical call format of agreement with after receiving the response of TMG (Replay) message.
Flow chart during below again referring to the test shown in Fig. 5 is elaborated to above-mentioned H.248 protocol test.Wherein, in this example, testing apparatus first interface unit is the MG interface unit, and second interface unit is the MGC interface unit.In the calling procedure, SS7 (ISUP.TUP), signaling messages such as PRA are through SG; H.248 message is through the ABNF tester.
When the PSTN side makes a call, send the IAM signaling to soft switch by SG, IP network, soft switch is realized by MGC in this example, later on no longer explanation.MGC responds this message when TMG sends H248 ADD message, and this message is obtained by protocol testing device of the present invention, and handles, and specifically may further comprise the steps:
Step 501: the MG interface unit of protocol testing device receives described message packet, inserts formation, notifies control unit then; The command interface function that control unit is good according to the script predefined sends to the protocol stack analytic unit with message.
Step 502: after the protocol stack analytic unit is received message, by unified packet parsing interface message is resolved, in this example, described agreement uses the grammatical form of ABNF to be described, and therefore the result who resolves is the message that parses ABNF syntax form.
For example, a series of word string code analysis of receiving are gone out the grammatical form of protocol requirement, as: 3D68S6H3G is resolved to: source address, destination address, protocol contents etc.And, the message after resolving is sent to the protocol test unit according to the control of control unit.
Wherein, can handle different ABNF agreements by the different ABNF protocol stack of replacing/loading.Also can come the analysis protocol message by string matching, the corresponding then step back is synthesized with character string and is constructed message.
Step 503: the protocol test unit is according to preset rule, message is analyzed whether correct, comprise that whether reasonable the structure of analyzing message, message content etc., as whether comprising desired each field (source address/destination address etc.), the every content of message whether corresponding with its attribute (as whether being numeric type/character string type etc.) and for example.Also comprise whether correctly analyzing to sending the response message of returning after revising.The application layer analysis result can offer the user by administrative unit.In this example, promptly check the whether requirement of protocol compliant of H248 ADD data, comprise according to the structure of this message of agreement regulation H248 ADD data are checked, the property value of this each field of data is checked etc., finish test purpose soft switch according to the agreement regulation
On the other hand, according to requirement the each several part content in the message structure is made amendment, to test according to response message analysis to content measurement.Afterwards, message structure is assembled into message, as is reverting to the word string code, under the control of control unit, sending to the MG interface unit.In this example, this message version number is made amendment,, check whether response is correct with after the response of receiving TMG (Replay) message according to test request.
Step 504: notify the MGC interface unit to send message then.Message in the formation after the MGC interface unit will be handled sends.
Step 505: afterwards, after the MGC interface unit receives response (Replay) message of TMG, same under the control of control unit, transfer to and send to the protocol test unit after the protocol stack analytic unit is resolved and analyze, whether the content of analyzing this response message is consistent with the response message content that should receive of test order regulation, thereby whether differentiate this response message correct.
Step 506: after to this message EOT, the protocol test unit structure goes out respective response message and sends to MGC by the MG interface unit.
Wherein, catch the mode of message for protocol testing device of the present invention, can be by the mode of Message Agent, just in network equipment both sides, disposing the other side IP address respectively is the address of protocol testing device, message can send to this device automatically like this, and this device is transmitted to destination device after handling again.Also can be by the mode of route, just this software is used as a router, other network equipments are put into the different segment of this device both sides respectively, allow the IP message pass this device by Routing Protocol, whether this device is that the protocol massages that needs to handle is caught message and handled then and transmit at the IP layer analysis.
The foregoing description as can be seen, testing apparatus can be inserted in does not influence network in the network, the message on can the full test network.And, compare with the method that the mode of an equipment of simulation of mentioning in the background technology is tested, do not need the whole interaction flow of the information of writing in advance.
In addition, need to prove, during invoke script, can adopt the mode of the mode/VB Script of popular TCL mode/Python mode/com component to provide the script calling interface to realize calling script.In addition, H.248 protocol test is not only limited to, MGCP, SIP, and other by switching different ABNF protocol stacks, can adopt this mode that different agreements is tested based on the agreement of ABNF form.And for the agreement of non-ABNF form, the protocol test unit is as long as the description standard of the form of the agreement that storage will detect to some extent can use the present invention to realize test equally.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a protocol testing device is characterized in that, this device comprises:
First interface unit is used to receive first message packet from source device, and described first message packet is sent to the protocol stack analytic unit;
Second interface unit is used for the message that the protocol test unit sends is sent to external network; And the response message message that receives from destination device sends to the protocol stack analytic unit with described response message message then;
The protocol stack analytic unit is used for the packet parsing that the first/the second interface unit sends is gone out the structure of this message, and sends the protocol test unit to;
The protocol test unit is used for according to test order, and first message packet after the parsing that the protocol stack analytic unit is sent is made amendment, and amended message is sent to second interface unit; And whether the response message message after the parsing that sends of analysis confirmation protocol stack analytic unit is satisfactory message;
Control unit is used for each unit co-ordination of control protocol testing apparatus.
2. device according to claim 1 is characterized in that, further comprises:
Administrative unit is used to realize the modification to described test order, and protocol test element analysis result is shown to the user.
3. device according to claim 1 and 2 is characterized in that, described the first/the second interface unit comprises: COM port com component interface and/or TCL TCL protocol interface and/or OO interpreted language Python protocol interface.
4. a protocol testing method is characterized in that, protocol testing device is connected between source device and the destination device, and this method may further comprise the steps:
A, obtain first message packet that source device sends, revise described content of message, amended message is sent to destination device according to test order;
B, obtain destination device, analyze the message that should receive whether described response message message meets the test order regulation the described response message message of revising the back message.
5. method according to claim 4 is characterized in that, further comprises behind the step B: described response message message is revised as the response message message of first message packet, and sends to source device.
6. method according to claim 4 is characterized in that, the step of the described message content of the described modification of steps A comprises:
Parse each part of described first message packet that is received;
According to test order the content of one or more parts of the message that parses is made amendment, added or deletes.
7. method according to claim 6 is characterized in that, the step of described parsing is:
Determine mutual employed agreement between source device and the destination device;
Use the message structure of described agreement defined that described first message packet that receives is resolved.
8. method according to claim 6 is characterized in that, the step whether described analyzing responding message packet of step B meets the message that should receive of test order regulation comprises:
Analyze each part structure whether protocol compliant requires of described message structure; Or/and,
Analyze the attribute whether every content of each composition of described message structure requires with protocol compliant; Or/and,
Whether every content of each composition of analyzing described message structure is reasonable.
9. method according to claim 4 is characterized in that, the described mode of obtaining of step B comprises:
Mode by Message Agent is obtained; Or,
Mode by route is obtained.
10. method according to claim 4 is characterized in that, this method further comprises:
The result who analyzes is offered the user.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101149531A CN100387004C (en) | 2005-11-16 | 2005-11-16 | Protocol testing apparatus and method thereof |
| PCT/CN2006/002666 WO2007056921A1 (en) | 2005-11-16 | 2006-10-11 | A protocol testing device and the protocol testing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101149531A CN100387004C (en) | 2005-11-16 | 2005-11-16 | Protocol testing apparatus and method thereof |
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| CN1852178A CN1852178A (en) | 2006-10-25 |
| CN100387004C true CN100387004C (en) | 2008-05-07 |
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| CNB2005101149531A Expired - Fee Related CN100387004C (en) | 2005-11-16 | 2005-11-16 | Protocol testing apparatus and method thereof |
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| CN (1) | CN100387004C (en) |
| WO (1) | WO2007056921A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931564B (en) * | 2009-06-25 | 2012-07-25 | 成都市华为赛门铁克科技有限公司 | Method and system for testing protocol anomaly, test device and control device |
| CN105721236B (en) * | 2014-12-04 | 2019-05-17 | 北京视联动力国际信息技术有限公司 | A kind of method and device thereof of Ethernet mistake packet test |
| CN106407061B (en) * | 2015-07-27 | 2020-06-16 | 中兴通讯股份有限公司 | Northbound interface testing device and northbound interface testing method |
| CN106980889A (en) * | 2016-01-18 | 2017-07-25 | 阿里巴巴集团控股有限公司 | Analogy method, device and the analogue means of non-contact IC card |
| CN106100935A (en) * | 2016-08-06 | 2016-11-09 | 顺德职业技术学院 | Charging equipment of electric automobile communication protocol consistency test device and method |
| EP3577927A1 (en) * | 2017-02-06 | 2019-12-11 | Telefonaktiebolaget LM Ericsson (PUBL) | Lawful interception security |
| CN109660519A (en) * | 2018-11-23 | 2019-04-19 | 北京字节跳动网络技术有限公司 | The route agent of formula kidnaps method, apparatus and electronic equipment based on programming |
| CN111884776A (en) * | 2020-07-02 | 2020-11-03 | 深圳市赛特新能科技有限公司 | Charging pile protocol consistency testing method |
| CN111782452A (en) * | 2020-07-03 | 2020-10-16 | 携程商旅信息服务（上海）有限公司 | Method, system, device and medium for interface contrast test |
| CN114584330A (en) * | 2020-11-16 | 2022-06-03 | 华为技术有限公司 | Vulnerability testing method and device |
| CN113852610B (en) * | 2021-09-06 | 2024-03-05 | 招银云创信息技术有限公司 | Message processing method, device, computer equipment and storage medium |
| CN114070761B (en) * | 2021-11-11 | 2023-09-26 | 北京轨道交通路网管理有限公司 | Protocol message detection method and device and electronic equipment |
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| JPH08102772A (en) * | 1994-09-30 | 1996-04-16 | Matsushita Electric Ind Co Ltd | Protocol analyzer |
| CN1471267A (en) * | 2002-07-22 | 2004-01-28 | 华为技术有限公司 | Network protocol measuring method and measuring system thereof |
| CN1509016A (en) * | 2002-12-19 | 2004-06-30 | ��ʽ����Ntt����Ħ | Agreement test system and method thereof |
| JP2005018245A (en) * | 2003-06-24 | 2005-01-20 | Sumitomo Electric Ind Ltd | Protocol testing device, protocol testing method, and protocol testing program |
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2005
- 2005-11-16 CN CNB2005101149531A patent/CN100387004C/en not_active Expired - Fee Related
-
2006
- 2006-10-11 WO PCT/CN2006/002666 patent/WO2007056921A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08102772A (en) * | 1994-09-30 | 1996-04-16 | Matsushita Electric Ind Co Ltd | Protocol analyzer |
| CN1471267A (en) * | 2002-07-22 | 2004-01-28 | 华为技术有限公司 | Network protocol measuring method and measuring system thereof |
| CN1509016A (en) * | 2002-12-19 | 2004-06-30 | ��ʽ����Ntt����Ħ | Agreement test system and method thereof |
| JP2005018245A (en) * | 2003-06-24 | 2005-01-20 | Sumitomo Electric Ind Ltd | Protocol testing device, protocol testing method, and protocol testing program |
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| CN1852178A (en) | 2006-10-25 |
| WO2007056921A1 (en) | 2007-05-24 |
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