What it can do:
- Decodes records and most standard messages and extensions.
- Decryptes records and reassemples application data stream if a keylog is provided
and the cipher suite is supported.
- Supports most recommended and used ciphers and a bunch of older ones.
What it can't do:
- SSL v3 maybe supported, is similar to TLS 1.0, not tested.
- Decryption and renegotiation/cipher change.
- Record defragmentation not supported, seems rare over TCP.
- TLS 1.3
- SSL v2 but v2 compat header is supported.
- Some key exchange messages not decoded yet
Decryption code is heavly based on golang crypto/tls and zmap/zcrypto.
Will be base for decoding http2 and other TLS based on protocols.
Fixes#587
This will allow passing both cli options and format options to sub decoder.
Ex: pass keylog option to a tls decoder when decoding a pcap.
Ex: pass decode options to a format inside a http body inside a pcap.
Add ArgAs method to lookup argument based on type. This also makes the format
decode function have same signature as sub decoders in the decode API.
This change decode.Format a bit:
DecodeFn is now just func(d *D) any
DecodeInArg renamed to DefaultInArg
Feels less cluttered, easier to read and more consistent.
Still keep tovalue, tobytes etc that are more basic functions this
only renamed format related functions.
Also there is an exceptin for to/fromjson as it comes from jq.
Also fixes lots of spelling errors while reading thru.
Preparation to make decoder use less memory and API more type safe.
Now each scalar type has it's own struct type so it can store different
things and enables to have a scalar interface.
Also own types will enable experimenting with decode DLS designs like
using chained methods that are type aware.
I think this is more intuitive but might in some case cause very large JSON output
but maybe that less common or expected. In does cases i think you either want to
use some other bits_format (md5, truncate, etc) or you delete/transform the jq value
before turn it into JSON.
Strings in gojq are binary safe so you can use to hold raw bytes. But note that
convert the binary into JSON is lossy, same as the JSON standard.
Add bits_format option documentation.
raw format was a hack to skip decoding to be able to get a binary using tobyte etc.
Now you can do fq -d bytes ... instead of fq -d raw 'tobytes | ...'
Make more sense to use a more general name when there is both info and xing
and possibly vbri in the future. Also both xing and info seems to have extension
fields
Remove some old tests that are not really needed anymore.
Before if you did toactual it behaved differently and even gave error for
a scalar that only had actual value set. Now both to{actal,sym} works
similar to tovalue but will force if actual or sym value should be used.
