* add light client optimistic and finality update rpc
* Arc the updates in the response
* add conditional advertisement for both LightClientOptimisticUpdate and LightClientFinalityUpdate
* alter display for inboundrequest light client optimistic and finality updates
* remove LightClientOptimistic/FinalityReuest struct and some minor fixes
* rebase
* failing rpc_test for LightClientBootstrap and beginning of MockLib2pLightClient
* minor change
* added MockRPCHandler by importing everything except OutboundRequest. Need to implement the ConnectionHandler trait now should be copy pastable
* almost there but ran into issue where needed to implement BaseOutboundRequest.
* failing but running with a light client service of sorts
* small test change
* changed Protocol::LightClientBootstrap response limit
* deleted some stuff from ConnectionHandler Implementation for the mock light client if you need to make something with multiple requests work maybe check here
* deleted purging expired inbound/outbound streams code
* deleted drive inbound streams that need to be processed
* removed unused imports
* made things private again
* deleted inject_fully_negotiated_inbound
* made more things private again
* more
* turned the logger off in the test
* added failing test for new rpc
* add rate limit for new rpcs
* change InboundUpgrade function to use new rpcs. fmt. add test for LightClientFinalityUpdate
* rebasing fix
* add LightClientUpdate to handle_rpc functions
* added context bytes
* fmt
* use correct unsed_tcp4_port function
* fix for recent config changes and adding context_bytes for the light client protocols
* fix clippy complaint
* Merge branch 'unstable' into lc-reqresp
# Conflicts:
# beacon_node/beacon_processor/src/lib.rs
# beacon_node/lighthouse_network/src/peer_manager/mod.rs
# beacon_node/lighthouse_network/src/rpc/codec/ssz_snappy.rs
# beacon_node/lighthouse_network/src/rpc/config.rs
# beacon_node/lighthouse_network/src/rpc/methods.rs
# beacon_node/lighthouse_network/src/rpc/mod.rs
# beacon_node/lighthouse_network/src/rpc/outbound.rs
# beacon_node/lighthouse_network/src/rpc/protocol.rs
# beacon_node/lighthouse_network/src/rpc/rate_limiter.rs
# beacon_node/lighthouse_network/src/rpc/self_limiter.rs
# beacon_node/lighthouse_network/src/service/api_types.rs
# beacon_node/lighthouse_network/tests/common/mod.rs
# beacon_node/lighthouse_network/tests/rpc_tests.rs
# beacon_node/network/src/network_beacon_processor/rpc_methods.rs
# beacon_node/network/src/router.rs
* Error handling updates and various cleanups.
* Moar minor clean ups.
* Do not ban peer for rate limiting light client requests
* Merge branch 'unstable' into lc-reqresp. Also removed the mock light client tests to make it compile (See #4940).
# Conflicts:
# beacon_node/lighthouse_network/src/rpc/codec/ssz_snappy.rs
# beacon_node/lighthouse_network/src/rpc/methods.rs
# beacon_node/lighthouse_network/src/rpc/mod.rs
# beacon_node/lighthouse_network/src/rpc/protocol.rs
# beacon_node/lighthouse_network/src/service/api_types.rs
# beacon_node/lighthouse_network/tests/common/mod.rs
# beacon_node/network/src/network_beacon_processor/rpc_methods.rs
# beacon_node/network/src/router.rs
# consensus/types/src/light_client_bootstrap.rs
# consensus/types/src/light_client_finality_update.rs
# consensus/types/src/light_client_optimistic_update.rs
* Remove unnecessary changes
* Add missing light client queue handling.
* Merge branch 'unstable' into lc-reqresp
* Merge branch 'unstable' into lc-reqresp
# Conflicts:
# beacon_node/lighthouse_network/src/rpc/codec/ssz_snappy.rs
# beacon_node/lighthouse_network/src/service/api_types.rs
# consensus/types/src/light_client_finality_update.rs
# consensus/types/src/light_client_optimistic_update.rs
* Add context bytes for light client RPC responses.
* Add RPC limits for light client object.
* Fix lint
* Fix incorrect light client max size computation.
* Merge branch 'unstable' into lc-reqresp
# Conflicts:
# beacon_node/lighthouse_network/src/rpc/codec/ssz_snappy.rs
# beacon_node/lighthouse_network/src/rpc/protocol.rs
# beacon_node/lighthouse_network/src/service/api_types.rs
* Remove unwanted local changes.
* Merge branch 'unstable' into lc-reqresp
* Replace `unimplemented` electra code path with deneb values.
## Proposed Changes
Implement the consensus changes necessary for the upcoming Altair hard fork.
## Additional Info
This is quite a heavy refactor, with pivotal types like the `BeaconState` and `BeaconBlock` changing from structs to enums. This ripples through the whole codebase with field accesses changing to methods, e.g. `state.slot` => `state.slot()`.
Co-authored-by: realbigsean <seananderson33@gmail.com>
## Issue Addressed
Resolves#1100
## Proposed Changes
* Implement the `SafeArith` trait for `Slot` and `Epoch`, so that methods like `safe_add` become available.
* Tweak the `SafeArith` trait to allow a different `Rhs` type (analagous to `std::ops::Add`, etc).
* Add a `legacy-arith` feature to `types` and `state_processing` that conditionally enables implementations of
the `std` ops with saturating semantics.
* Check compilation of `types` and `state_processing` _without_ `legacy-arith` on CI,
thus guaranteeing that they only use the `SafeArith` primitives 🎉
## Additional Info
The `legacy-arith` feature gets turned on by all higher-level crates that depend on `state_processing` or `types`, thus allowing the beacon chain, networking, and other components to continue to rely on the availability of ops like `+`, `-`, `*`, etc.
**This is a consensus-breaking change**, but brings us in line with the spec, and our incompatibilities shouldn't have been reachable with any valid configuration of Eth2 parameters.
