class SourceMatchCodeGenerator

Code generator for source match filters. More...

 
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Protected Methods


Detailed Description

This is a specialized version of the import filter CodeGenerator.

It skips dest and action blocks in policies. The action block is replaced with the actual policy tagging.

typedef pair<bool, uint32_t> Taginfo

Taginfo

typedef vector<Taginfo> Tags

Tags

NoProtoSpec (class)

NoProtoSpec

ProtoRedefined (class)

ProtoRedefined

 SourceMatchCodeGenerator (uint32_t tagstart, const VarMap& varmap, PolicyMap& pmap)

SourceMatchCodeGenerator

Parameters:

tagstartthe first policy tag available.
varmapthe varmap.
const Element*  visit_policy (PolicyStatement& policy)

visit_policy

Reimplemented from CodeGenerator.

const Element*  visit_term (Term& term)

visit_term

Reimplemented from CodeGenerator.

const Element*  visit_proto (NodeProto& node)

visit_proto

Reimplemented from CodeGenerator.

vector<Code*>&  codes ()

codes

The targets of source match code may be multiple as different protocols may refer to different source terms. Thus many different code fragments may be generated.

Returns: seturn all the code fragments generated.

const Tags&  tags ()

tags

[const]

The source match code generator will map source blocks to tags. If a source block is empty, a tag will not be used.

Returns: information about tags used.

uint32_t  next_tag ()

next_tag

[const]

Returns: The next available policy tag.

const string&  protocol ()

protocol

[protected]

Reimplemented from CodeGenerator.


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