1
我需要使用GSM MAP ASN.1,但該規範中有一個Information Object Classes(or here),我不知道如何解析此語法以在pyasn1庫中使用。如何解析ASN1語法中的對象類以在pyasn1中使用?
有沒有一些方法(或解決方法)來解析它?
這裏是的情況下(從3GPP TS 29.002 V12.3.0摘自):
MAP-EXTENSION ::= CLASS {
&ExtensionType OPTIONAL,
&extensionId OBJECT IDENTIFIER }
-- The length of the Object Identifier shall not exceed 16 octets and the
-- number of components of the Object Identifier shall not exceed 16
-- data types
ExtensionContainer ::= SEQUENCE {
privateExtensionList [0]PrivateExtensionList OPTIONAL,
pcs-Extensions [1]PCS-Extensions OPTIONAL,
...}
SLR-ArgExtensionContainer ::= SEQUENCE {
privateExtensionList [0]PrivateExtensionList OPTIONAL,
slr-Arg-PCS-Extensions [1]SLR-Arg-PCS-Extensions OPTIONAL,
...}
PrivateExtensionList ::= SEQUENCE SIZE (1..maxNumOfPrivateExtensions) OF
PrivateExtension
PrivateExtension ::= SEQUENCE {
extId MAP-EXTENSION.&extensionId
({ExtensionSet}),
extType MAP-EXTENSION.&ExtensionType
({ExtensionSet}{@extId}) OPTIONAL}
maxNumOfPrivateExtensions INTEGER ::= 10
ExtensionSet MAP-EXTENSION ::=
{...
-- ExtensionSet is the set of all defined private extensions
}
-- Unsupported private extensions shall be discarded if received.
PCS-Extensions ::= SEQUENCE {
...}
SLR-Arg-PCS-Extensions ::= SEQUENCE {
...,
na-ESRK-Request [0] NULL OPTIONAL }