ih is nil if we expect the peer to declare the InfoHash, such as when the peer initiated the connection.

Unmarshals and returns a PEX message.

17.

BEP 3.

BEP 10.

https://www.bittorrent.org/beps/bep_0004.html https://wiki.theory.org/BitTorrentSpecification.html#Reserved_Bytes.

https://www.bittorrent.org/beps/bep_0004.html https://wiki.theory.org/BitTorrentSpecification.html#Reserved_Bytes.

https://www.bittorrent.org/beps/bep_0004.html.

http://www.bittorrent.org/beps/bep_0005.html.

http://www.bittorrent.org/beps/bep_0006.html.

https://wiki.theory.org/BitTorrent_Location-aware_Protocol_1.

LibTorrent Extension Protocol, http://www.bittorrent.org/beps/bep_0010.html.

A peer connection initiator can set this when sending a v1 infohash during handshake if they allow the receiving end to upgrade to v2 by responding with the corresponding v2 infohash.

http://bittorrent.org/beps/bep_0009.html.

http://www.bittorrent.org/beps/bep_0011.html.

BEP 52.

14.

15.

BEP 5.

16.

13.

http://www.bittorrent.org/beps/bep_0010.html.

This is a lazy union representing all the possible fields for messages.

Marshals to the smallest compact byte representation.

http://www.bittorrent.org/beps/bep_0010.html.

http://www.bittorrent.org/beps/bep_0010.html.