Crate sn_routing[−][src]

Peer implementation for a resilient decentralised network infrastructure.

This is the “engine room” of a hybrid p2p network, where the p2p nodes are built on top of this library. The features this library gives us is:

Sybil resistant p2p nodes
Sharded network with up to approx 200 p2p nodes per shard
All data encrypted at network level with TLS 1.3
Network level quic compatibility, satisfying industry standards and further obfuscating the p2p network data.
Upgrade capable nodes.
All network messages signed via ED25519 and/or BLS
Section consensus via an ABFT algorithm (PARSEC)

Structs

Cache	A `BTreeMap`-backed cache supporting capacity- and duration-based expiry.
Config	Routing configuration.
EventStream	Stream of routing node events
Prefix	A section prefix, i.e. a sequence of bits specifying the part of the network’s name space consisting of all names that start with this sequence.
Routing	Interface for sending and receiving messages to and from other nodes, in the role of a full routing node.
SendStream	Stream of outgoing messages
TransportConfig	QuicP2p configurations
XorName	A 256-bit number, viewed as a point in XOR space.

Error	Internal error.
Event	An Event raised by a `Node` or `Client` via its event sender.
NodeElderChange	A flag in EldersChanged event, indicating whether the node got promoted, demoted or did not change.

ELDER_SIZE	Number of elders per section.
FIRST_SECTION_MAX_AGE	Defines the higher bound of this range.
FIRST_SECTION_MIN_AGE	During the first section, nodes can start at a range of age to avoid too many nodes having the same time get relocated at the same time. Defines the lower bound of this range.
MIN_ADULT_AGE	The minimum age a node becomes an adult node.
MIN_AGE	The minimum age a node can have. The Infants will start at age 4. This is to prevent frequent relocations during the beginning of a node’s lifetime.
RECOMMENDED_SECTION_SIZE	Recommended section size. sn_routing will keep adding nodes until the section reaches this size. More nodes might be added if requested by the upper layers. This number also detemines when split happens - if both post-split sections would have at least this number of nodes.
XOR_NAME_LEN	Constant byte length of `XorName`.

PeerUtils
SectionAuthorityProviderUtils	A new `SectionAuthorityProvider` is created whenever the elders change, due to an elder being added or removed, or the section splitting or merging.

The type returned by the sn_routing message handling methods.