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14 Commits

Author SHA1 Message Date
Péter Szilágyi 9e17648d8c
les: duplicate downloader and fetcher to allow progressive refactoring 2021-09-10 11:11:59 +03:00
gary rong 45cb1a580a
eth, les: add new config field SyncFromCheckpoint (#22123) 
This PR introduces a new config field SyncFromCheckpoint for light client.

In some special scenarios, it's required to start synchronization from some
arbitrary checkpoint or even from the scratch. So this PR offers this
flexibility to users so that the synchronization start point can be configured.

There are two relevant configs: SyncFromCheckpoint and Checkpoint.

- If the SyncFromCheckpoint is true, the light client will try to sync from the
  specified checkpoint.

- If the Checkpoint is not configured, then the light client will sync from the
  scratch(from the latest header if the database is not empty)

Additional notes: these two configs are not visible in the CLI flags but only
accessable in the config file.

Example Usage:

[Eth]
SyncFromCheckpoint = true

[Eth.Checkpoint]
SectionIndex = 100
SectionHead = "0xabc"
CHTRoot = "0xabc"
BloomRoot = "0xabc"

PS. Historical checkpoint can be retrieved from the synced full node or light
client via les_getCheckpoint API.
 2021-01-19 10:52:45 +01:00
gary rong 9f6bb492bb
les, light: remove untrusted header retrieval in ODR (#21907) 
* les, light: remove untrusted header retrieval in ODR

* les: polish

* light: check the hash equality in odr
 2020-12-10 14:33:52 +01:00
gary rong 4fabd9cbd2
les: separate peer into clientPeer and serverPeer (#19991) 
* les: separate peer into clientPeer and serverPeer

* les: address comments
 2020-02-26 11:41:24 +02:00
gary rong c6285e6437 les/checkpointoracle: move oracle into its own package (#20508) 
* les: move the checkpoint oracle into its own package

It's first step of refactor LES package. LES package
basically can be divided into LES client and LES server.
However both sides will use checkpoint package for
status retrieval and verification. So this PR moves
checkpoint oracle into a separate package

* les: address comments
 2020-01-07 11:24:21 +02:00
gary rong 32b07e8b1f les: fix checkpoint sync (#20120) 2019-09-25 10:05:15 +02:00
gary rong 2ed729d38e les: handler separation (#19639) 
les: handler separation
 2019-08-21 11:29:34 +02:00
gary rong f7cdea2bdc all: on-chain oracle checkpoint syncing (#19543) 
* all: implement simple checkpoint syncing

cmd, les, node: remove callback mechanism

cmd, node: remove callback definition

les: simplify the registrar

les: expose checkpoint rpc services in the light client

les, light: don't store untrusted receipt

cmd, contracts, les: discard stale checkpoint

cmd, contracts/registrar: loose restriction of registeration

cmd, contracts: add replay-protection

all: off-chain multi-signature contract

params: deploy checkpoint contract for rinkeby

cmd/registrar: add raw signing mode for registrar

cmd/registrar, contracts/registrar, les: fixed messages

* cmd/registrar, contracts/registrar: fix lints

* accounts/abi/bind, les: address comments

* cmd, contracts, les, light, params: minor checkpoint sync cleanups

* cmd, eth, les, light: move checkpoint config to config file

* cmd, eth, les, params: address comments

* eth, les, params: address comments

* cmd: polish up the checkpoint admin CLI

* cmd, contracts, params: deploy new version contract

* cmd/checkpoint-admin: add another flag for clef mode signing

* cmd, contracts, les: rename and regen checkpoint oracle with abigen
 2019-06-28 10:34:02 +03:00
Péter Szilágyi 6cf0ab38bd
core/rawdb: separate raw database access to own package (#16666) 2018-05-07 14:35:06 +03:00
thomasmodeneis ba1030b6b8 build: enable goimports and varcheck linters (#16446) 2018-04-18 00:53:50 +02:00
Felix Lange c213fd1fd8 all: import "context" instead of "golang.org/x/net/context" 
There is no need to depend on the old context package now that the
minimum Go version is 1.7. The move to "context" eliminates our weird
vendoring setup. Some vendored code still uses golang.org/x/net/context
and it is now vendored in the normal way.

This change triggered new vet checks around context.WithTimeout which
didn't fire with golang.org/x/net/context.
 2017-03-22 20:49:15 +01:00
Felix Lange 35a7dcb162 all: gofmt -w -s 2017-01-06 15:52:03 +01:00
Felix Lange b8bd9a71c8 all: update license information 2016-11-09 02:51:34 +01:00
Zsolt Felfoldi 9f8d192991 les: light client protocol and API 2016-11-09 02:12:53 +01:00