CN100382516C - Method and method of consistency testing for IPv6 main protocol - Google Patents
Method and method of consistency testing for IPv6 main protocol Download PDFInfo
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- CN100382516C CN100382516C CNB2005100535040A CN200510053504A CN100382516C CN 100382516 C CN100382516 C CN 100382516C CN B2005100535040 A CNB2005100535040 A CN B2005100535040A CN 200510053504 A CN200510053504 A CN 200510053504A CN 100382516 C CN100382516 C CN 100382516C
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Abstract
The present invention provides a method of a consistency test for an IPv6 main protocol, which comprises that: tool command language expansion commands of a sixth edition IPv6 main protocol of an internet protocol are established; a tool command language script which is needed by a test of the IPv6 protocol is generated according to the tool command language expansion commands; the tool command language script is executed, and the consistency of the IPv6 main protocol is judged by an execution result. The device comprises a tool command language script module, a tested realization module and a testing result judging module. With the method of the present invention, the description of a test script of a consistency test for the IPv6 main protocol is simplified so as to greatly shorten test time, and an automatic consistency test for the IPv6 main protocol can be realized.
Description
Technical field
The present invention relates to the protocol engineering technology in the modern communications field, relate in particular to and a kind of IPv6 (Internet protocol the 6th edition) master agreement is carried out the method and apparatus of uniformity test.
Background technology
Raising along with the network service request, the complexity of network system requires high-quality communication protocol again can not design by the engineering intuitive approach, each activity during protocol engineering (Protocol Engineering) technology is described in design of protocol and safeguards with formal method, make the whole process of protocol development integrated, systematization and formalization, thereby the consistency of guarantee agreement, correctness, fail safe and portability.
Agreement is the rule that should observe when communicating between each equipment, and these rules are to describe with natural language basically, and the form with text in RFC (Request for Comment, Request for Comment) provides.Because the implementor may be different for the understanding of agreement, this just causes realizing at the different agreement of same agreement, agreement is realized that the method for differentiating is protocol test (ProtocolTesting).
The uniformity test of agreement is intended to detect the protocol entity realized and the matching degree of protocol specification, it is meant the realization at a procotol, the tester is according to protocol specification, test suite is tested it by carrying on an agreement, be implemented in different environment and the reflex action under the condition by observing this then, verify whether this agreement realizes consistent with the corresponding protocol standard.In OSI (open system interconnection) category, if agreement is implemented in it and other realizes that the behavior that is showed in system communication meets the coherence request of osi protocol standard, just illustrates that this agreement has presented consistency.The uniformity test of agreement is to guarantee the correct key that realizes of an agreement.
IP (Internet protocol) network is meant that with TCP/IP (TCP) agreement be the network of base communications protocol, and famous Internet (internet) is exactly a kind of of IP network.The IP agreement of using is IPv4 (an edition 4 Internet protocol) at present, IPv4 is the agreement of formulating the seventies in last century, along with the continuous expansion of global ip network size and increasing rapidly of number of users, the IPv4 agreement can not adapt to the needs of development, it exists following three big crises: the address exhaustion, IPv4 only comes presentation address with 32 bits, and address space is very little; The network number scarcity; Routing table sharply expands.
IPv6 is the IPv4 redaction of IP agreement later on that continues, and grows up in middle nineteen nineties in last century, and IPv6 has inherited the advantage of IPv4, and IPv4 has been carried out significantly revising and the function expansion, and IPv6 has expanded the address to 128.In addition, IPv6 service quality, automatically control and safety etc. the aspect also done very big improvement, IPv6 will become the leading agreement of next generation network.Also finish before the standard mesh of every IPv6 basic agreement, but want to make the IPv6 network between international network zero defect, carry out transfer of data pellucidly, make the agreement of each producer realize meeting the standard of IPv6 agreement, must carry out uniformity test the IPv6 agreement.
TTCN (tree-like and tabular composite marker) is recommended half formal descriptive language of a kind of special description test set of use by ISO (International Standards Organization), TTCN can describe the universal test collection that is independent of any realization.The abstract test suite of the standard of describing with TTCN comprises four parts: test set overview section (Suite Overview), declaratives (Declaration Part), constraint portions (Constraints Part), dynamically describe part (Dynamic Part), the test set of describing with TTCN has advantages such as standard, versatility and interchangeability.
A kind of method of in the prior art IPv6 master agreement being carried out uniformity test is: describe the test set of IPv6 master agreement with TTCN, and according to this test set, utilize the compiler of TTCN that the IPv6 master agreement is carried out uniformity test.
The shortcoming of in the described prior art IPv6 master agreement being carried out the method for uniformity test is: because the standard definition of TTCN is extremely loaded down with trivial details.Therefore, the compiler of TTCN is very complicated, a huge software, with the compiler of TTCN the test set of IPv6 master agreement is compiled and will consume a large amount of time, and take a large amount of system resource, and TTCN can not realize embedded testing.The test set engineering of IPv6 master agreement is big, the time is long, cost is high so describe with TTCN, and can not carry out embedded testing.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of method and apparatus that the IPv6 master agreement is carried out uniformity test, the feasible description of the IPv6 master agreement being carried out the test script of uniformity test is oversimplified, shortened the testing time greatly, and can realize the IPv6 master agreement is automatically carried out uniformity test.
The objective of the invention is to be achieved through the following technical solutions:
A kind of the IPv6 master agreement is carried out the method for uniformity test, comprising:
A, set up the tool instruction language expanding order of the 6th edition IPv6 master agreement of Internet protocol, specifically comprise: according to the message format design test example of the data division of IPv6 master agreement, and according to described test case and described message format, the tool instruction language expanding order of design IPv6 master agreement;
B, according to described tool instruction language expanding order, generate the ool instruction language script that IPv6 master agreement uniformity test needs;
C, carry out described ool instruction language script, and judge the consistency of IPv6 master agreement according to the result who carries out.
The tool instruction language expanding order of described IPv6 master agreement comprises:
Explosion command at encapsulated message, analytic message, transmission message and the processing of reception message.
Described steps A also comprises:
The received text Request for Comment of A11, analyzing IP v6 master agreement is determined the data division of the received text Request for Comment of IPv6 master agreement;
A12, from described data division, extract the message format of the data division of IPv6 master agreement.
Described steps A also comprises:
According to the configuration requirement of tested realization, the tool instruction language expanding order that design is configured tested realization interface.
Described step B further comprises:
According to described tool instruction language expanding order and described test case, the programming characteristic that utilizes the built-in order of Tool Command Language to provide generates corresponding ool instruction language script.
Described step C further comprises:
C1, in tested realization, carry out described ool instruction language script;
C2, carry out outgoing message behind the described ool instruction language script, judge the consistency of IPv6 master agreement according to tested realization.
Described step C2 further comprises:
If it is consistent that the consensus standard of outgoing message behind the described ool instruction language script and IPv6 master agreement is carried out in tested realization, determine that then the IPv6 master agreement presents consistency.
Described step C further comprises:
Utilize the tool instruction language expanding order of described tested realization interface, in tested realization, automatically perform described ool instruction language script.
A kind of the IPv6 master agreement is carried out the device of uniformity test, comprising:
Ool instruction language script module: according to the message format design test example of the data division of IPv6 master agreement, and according to described test case and described message format, the tool instruction language expanding order of design IPv6 master agreement carries out the needed ool instruction language script of uniformity test based on tool instruction language expanding order and test case generation to the IPv6 master agreement;
Tested realization: be used to carry out the ool instruction language script of described generation, and the message of output is passed to the test result discrimination module;
Test result discrimination module: be used for the relation of the consensus standard of the outgoing message that passes over according to tested realization and IPv6 master agreement, judge that whether the IPv6 master agreement has consistency, determines test result.
As seen from the above technical solution provided by the invention, the present invention compares with prior art, TCL (Tool Command Language with powerful and simple and flexible, Tool Command Language) language replaces the TTCN language to come test script is described, simplified the description of test script greatly, and do not need very long compilation process, thereby shortened the testing time, reduced test cost.And to the tool instruction language expanding order that tested realization interface is configured, realized the IPv6 master agreement is automatically carried out uniformity test by design.
Description of drawings
Fig. 1 is the concrete handling process of the method for the invention;
Fig. 2 is the structure chart of device of the present invention.
Embodiment
The invention provides a kind of method and apparatus that the IPv6 master agreement is carried out uniformity test, core of the present invention is: carry out the uniformity test of IPv6 master agreement by writing simple T CL script, thereby avoided writing numerous long complicated code, can more time put into test point searching, test case design and improve on the test coverage of test suite.
In order to describe the present invention better, we simply introduce earlier TCL (Tool Command Language).
TCL is the universal programming language of the style of flexible strong functions of a kind of C of collection language and BASIC (Beginner ' s All-purposeSymbolic Instruction Code) language easy-to-learn high-efficiency, it is an open source software, its grammer is simple, and expandability is very strong.
The core of TCL is an interpreter, this interpreter interprets is carried out the order in the TCL application program, the order of TCL is divided into three kinds: built-in order, application command and explosion command, wherein built-in order is the order that TCL carries, enough programmable features are provided, as: variable, flow process control and process etc., make the user to dress up shell script with having program groups now, the user can also create new process to strengthen the function of the built-in order of TCL.Application command is the system command that operating system provides, and built-in order and application command can be used in independent programmed environment.In order to realize the irrealizable function of some TCL, or improve TCL and carry out efficient, need some to meet the newer command of customer requirements, the C function library of TCL has interface and easy to use clearly, this function library has realized basic interpreter, just can expand TCL at an easy rate with the C language, therefore, the user can be according to the TCL explosion command of different needs design oneself.
Describe the method for the invention in detail below in conjunction with accompanying drawing, the concrete process chart of the method for the invention comprises the steps: as shown in Figure 1
Step 1-1: the message format that obtains the data division of IPv6 master agreement.
The IPv6 agreement is the same with all Internet Protocols all to be to use natural language description, and the form with text in RFC (Request for Comment) provides.The present invention is data division and the control section of the RFC2460 of analyzing IP v6 master agreement (Request for Comment, received text Request for Comment 2460) at first, and extracts message format from the data division of RFC2460.
Step 1-2: according to the message format design test example that is obtained.
The IPv6 master agreement is a connectionless protocol, has only state, i.e. an idle condition, because the IPv6 master agreement has only a state, so can be according to the message format that from the data division of RFC2460, extracts, design test example one by one, and need not consider wherein state exchange.
The test case generation method of data division is: at first design this test need usefulness, needs give IUT (Implementation under test, tested realization) the normal and exception message that sends, then by after observing IUT and receiving described normal and exception message, whether make correct processing, promptly whether export corresponding normal and exception message, draw the result of determination of this test case.
Step 1-3: expand order according to message format that is obtained and designed test case design TCL.
According to the message format that from the data division of RFC2460, extracts, and the designed test case of integrating step 1-2, utilize the C function library of TCL that TCL is expanded, design the TCL explosion command of encapsulation, parsing, transmission and the reception of this message.
Such as, can design the TCL explosion command of following IPv6 master agreement:
IPv6_CreateHeader?sourceAddr?destAddr
SourceAddr: source address
DestAddr: destination address
-version: version (default 6)
The value in-traffic:traffic territory (default 0)
The value in-flow:flow territory (default 0)
-next：Next?Header
-hop:Hop Limit (default 255)
Return value: the Hash key assignments of IPv6 head
In addition, can also utilize the C function library of TCL to design the TCL explosion command that the IUT interface is configured according to the configuration requirement of IUT.
The occupation mode of above-mentioned TCL explosion command is: the user is compiled into dynamic link library file with the C language codes of TCL explosion command, be placed in the catalogue of system environment variable Path, in TCL, load then and compiling generation dynamic link library, during the order of TCL interpreter in explaining its application program, just can realize calling of TCL explosion command according to no command calls corresponding dynamic chained library.
Step 1-4: write the TCL script according to designed test case and TCL expansion order.
Test case and the step 1-3 designed TCL explosion command designed according to step 1-2, the programming characteristic that utilizes the built-in order of TCL to provide, i.e. the control of the statement of variable, flow process etc. generate corresponding TCL script.
The grammer of TCL language is simple, and therefore, the TCL script that is generated is not huge, and is fairly simple, and it is fast to move speed.
Below we list the test case TCL script of a simple IPv6 master agreement.
# filename: Basicltem_ToHost.tcl
# file description: IPv6 basic agreement test case
# test event numbering: Basicltem_IPv6header.ip.v6.IPv6
The # test purpose: whether test I Pv6 protocol stack can handle normal IPv6 ping message
The # test process:
# testing equipment target device
# | |
# |-------------------------->|
# | Echo?Request |
# | |
# |<--------------------------|
# | Neighbor?Solicitation |
# | |
# |-------------------------->|
# | Neighbor?Advertisement |
# | |
# |<--------------------------|
# | Echo?Reply |
# | |
# script executing result: pass
# structure Echo Request message
set?id?65535
set?seq?1
set?data?0x0102030405060708
set?request[icmpv6_CreateRequestPacket?$id?$seq?$data]
# is provided with the target Mac address that sends message
tcl_SetDestMac?$Link0DestinationMac
# opens network interface card
set?Adapter[tcl_OpenAdapter?$Link0AdapterIndex]
#Send?Echo?Request
prints″Send?Echo?Request......″
icmpv6_SendPacket$Adapter$SourceLinkLocalAddress$TargetLinkLoc
alAddress?$request
IPv6_Delete?$request
#receive?Echo?Reply
set?counter?$RecvCounter
set?timeout?$RecvTimeout
while{$counter＞0}{
set?reply[IPv6_RecvPacket?$Adapter?type?$timeout]
PrintPduInfo?$reply?type
if{$reply＞0}{
if{$type＝＝$NSPACKET}{
The #ND process
NsProcess $reply $Adapter $Link0SourceMac
$SourceLinkLocalAddress
IPv6_Delete?$reply
continue
}elseif{$type＝＝$ECHOREPLY}{
# receives Echo Reply
if{[icmpv6_GetReplyPacket?$reply-id?rID?-seq?rSeq?-data
rData]＞0}{
prints″receive?Echo?Reply?packet！″
# judges whether to sending the Echo Reply of Echo Request correspondence
if{($rID＝＝$id)&&($rSeq＝＝$seq)&&[string?equal
$rData?$data]}{
puts″Test?result：pass！！！″
IPv6_Delete?$reply
break
}
}
}
IPv6_Delete?$reply
}
set?counter[expr?$counter-1]
}
if{$counter＜＝0}{
puts″Test?result：fail！！！″
}
# closes network interface card
tcl_CloseAdapter?$Adapter
IPv6_Delete?$Adapter
Step 1-5: carry out the TCL script of being write.
The TCL script that execution in step 1-4 is generated in the IUT (Implementation under test, tested realization), and can utilize the designed TCL explosion command that the IUT interface is configured of step 1-3, test automatically.
Step 1-6: the result according to the execution of TCL script judges whether the IPv6 master agreement has consistency.
In IUT, carry out the message that IUT exported behind the TCL script of this test by analyzing, whether corresponding, whether consistent with the consensus standard of IPv6 master agreement with the message that should export, draw the result of this test.If the consensus standard of the outgoing message of IUT and IPv6 master agreement is consistent, illustrate that then this agreement realizes having presented consistency.
The present invention has used the TCL language, and the IPv6 network router that has itself has TCL shell (shell of TCL language), therefore, utilizes the present invention can have the IPv6 network realization embedded testing of TCL shell to router.
The structure chart of device of the present invention comprises as shown in Figure 2 as lower module:
Ool instruction language script module: the IPv6 master agreement is carried out the needed ool instruction language script of uniformity test based on what tool instruction language expanding order and test case generated;
Tested realization: be used to carry out the ool instruction language script of described generation, and the message of output is passed to the test result discrimination module;
Test result discrimination module: be used for the relation of the consensus standard of the outgoing message that passes over according to tested realization and IPv6 master agreement, judge whether the IPv6 master agreement has consistency.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is 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.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (11)
1. one kind is carried out the method for uniformity test to the IPv6 master agreement, it is characterized in that, comprising:
A, according to the message format design test example of the data division of the 6th edition IPv6 master agreement of Internet protocol, and according to described test case and described message format, the tool instruction language expanding order of design IPv6 master agreement;
B, according to described tool instruction language expanding order, generate the ool instruction language script that IPv6 master agreement uniformity test needs;
C, carry out described ool instruction language script, and judge the consistency of IPv6 master agreement according to the result who carries out.
2. according to claim 1 is described the IPv6 master agreement is carried out the method for uniformity test, it is characterized in that the tool instruction language expanding order of described IPv6 master agreement comprises:
Explosion command at encapsulated message, analytic message, transmission message and the processing of reception message.
3. according to claim 1 is described the IPv6 master agreement is carried out the method for uniformity test, it is characterized in that described steps A also comprises:
The received text Request for Comment of A11, analyzing IP v6 master agreement is determined the data division of the received text Request for Comment of IPv6 master agreement;
A12, from described data division, extract the message format of the data division of IPv6 master agreement.
4. described the IPv6 master agreement is carried out the method for uniformity test according to claim 1 or 3, it is characterized in that described steps A also comprises:
According to the configuration requirement of tested realization, the tool instruction language expanding order that design is configured tested realization interface.
5. described the IPv6 master agreement is carried out the method for uniformity test according to claim 1 or 3, it is characterized in that described step B further comprises:
According to described tool instruction language expanding order and described test case, the programming characteristic that utilizes the built-in order of Tool Command Language to provide generates corresponding ool instruction language script.
6. according to claim 1 is described the IPv6 master agreement is carried out the method for uniformity test, it is characterized in that described step C further comprises:
C1, in tested realization, carry out described ool instruction language script;
C2, carry out outgoing message behind the described ool instruction language script, judge the consistency of IPv6 master agreement according to tested realization.
7. according to claim 6 is described the IPv6 master agreement is carried out the method for uniformity test, it is characterized in that described step C2 further comprises:
If it is consistent that the consensus standard of outgoing message behind the described ool instruction language script and IPv6 master agreement is carried out in tested realization, determine that then the IPv6 master agreement presents consistency.
8. according to claim 4 is described the IPv6 master agreement is carried out the method for uniformity test, it is characterized in that described step C further comprises:
Utilize the tool instruction language expanding order of described tested realization interface, in tested realization, automatically perform described ool instruction language script.
9. according to claim 1 is described the IPv6 master agreement is carried out the method for uniformity test, it is characterized in that the tool instruction language expanding order of described IPv6 master agreement comprises:
SourceAddr: source address;
DestAddr: destination address;
-version: version;
The value in-traffic:traffic territory;
The value in-flow:flow territory;
-next：Next?Header；
-hop：Hop?Limit；
Return value: the Hash key assignments of IPv6 head.
10. one kind is carried out the device of uniformity test to the IPv6 master agreement, it is characterized in that, comprising:
Ool instruction language script module: according to the message format design test example of the data division of IPv6 master agreement, and according to described test case and described message format, the tool instruction language expanding order of design IPv6 master agreement carries out the needed ool instruction language script of uniformity test based on this tool instruction language expanding order and test case generation to the IPv6 master agreement;
Tested realization: be used to carry out the ool instruction language script of described generation, and the message of output is passed to the test result discrimination module;
Test result discrimination module: be used for the relation of the consensus standard of the outgoing message that passes over according to tested realization and IPv6 master agreement, judge that whether the IPv6 master agreement has consistency, determines test result.
11. according to claim 10 the IPv6 master agreement is carried out the device of uniformity test, it is characterized in that the tool instruction language expanding order of described IPv6 master agreement comprises:
SourceAddr: source address;
DestAddr: destination address;
-version: version;
The value in-traffic:traffic territory;
The value in-flow:flow territory;
-next：Next?Header；
-hop：Hop?Limit；
Return value: the Hash key assignments of IPv6 head.
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| CN101262483B (en) * | 2008-03-19 | 2012-09-05 | 北京天地互连信息技术有限公司 | A test method for mobile IPv6 interconnection and intercommunication |
| CN101916221A (en) * | 2010-07-23 | 2010-12-15 | 中兴通讯股份有限公司 | Method and system for performing unit testing on equipment |
| CN102087631B (en) * | 2011-03-09 | 2012-09-05 | 中国人民解放军国发科学技术大学 | Method for realizing fuzzing of software on the basis of state protocol |
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| CN1400751A (en) * | 2001-08-08 | 2003-03-05 | 中国科学院计算技术研究所 | Virtual testing system in communication protocal conformance test and its method |
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