my asn.1 module cannot be compiled. i receive syntax error.
can anyone help me out, giving me tips ?
THANKS in Advance
Here is my module :
IPv4Header DEFINITIONS ::=
BEGIN
IPHeader ::= SEQUENCE
{
version INTEGER(0..15),
ipheaderlength INTEGER(5..15),
typeofservice OCTET STRING,
totallength INTEGER(0..65535),
identification INTEGER(0..65535),
flags Flagtype,
fragmentoffset INTEGER(0..8191),
timetolive INTEGER(0..255),
protocoll INTEGER(0..255),
headerchecksum INTEGER(0..65535),
sourceadress IPadress,
destinadress IPadress,
options INTEGER(0..2147483647)
}
Flagtypes ::= SEQUENCE OF INTEGER
Flagtype Flagtypes ::=
{
flag1 INTEGER DEFAULT 0,
flag2 INTEGER(0|1),
flag3 INTEGER(0|1)
}
The above definition is incorrect. I believe you meant to have
Flagtype ::= SEQUENCE
{
flag1 INTEGER DEFAULT 0,
flag2 INTEGER(0|1),
flag3 INTEGER(0|1)
}
Why do you have Flagtypes? Please explain what you're trying to achieve
and perhaps I can suggest something better.
Which tagging environment would you expect to use? If you use explicit
tagging, which is the default, you will see a tagging error since the tags
for flag1 and flag2 would be the same.
IPadress ::= SEQUENCE
{
field1 INTEGER(0..255),
flied2 IA5STRING DEFAULT ".",
field3 INTEGER(0..255),
field4 IA5STRING DEFAULT ".",
field5 INTEGER(0..255),
field6 IA5STRING DEFAULT ".",
field7 INTEGER(0..255)
}
END
The correct spelling is IA5String.
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