[CTX] [ALL] Conditional Filter

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A filter can be applied conditionally based on circuit level information, using CMAP parameter like follows:

CMAP=filterSpec:filterName:ProtoList:dstHostList:srcHostList

For example, CMAP="sslway:FSV:telnet:hostA:*" means applying SSLway filter only when connecting to the Telnet server at hostA.

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