cmd/faucet: update the embedded website asset

core/state/snapshot: add generation logs to storage too

This PR has two changes in the les protocol:

- the auxRoot is not supported. See ethereum/devp2p#171 for more information
- the empty response will be returned in GetHelperTrieProofsMsg request if the merkle
   proving is failed. note, for backward compatibility, the empty merkle proof as well as
   the request auxiliary data will still be returned in  les2/3 protocol no matter the proving
   is successful or not. the proving failure can happen e.g. request the proving for a
   non-included entry in helper trie (unstable header).

* tests/fuzzers/abi: better test generation

* tests/fuzzers/abi: fixed packing issue

* oss-fuzz: enable abi fuzzer

* cmd/geth: dump config

* cmd/geth: dump config

* cmd/geth: properly read config again

* cmd/geth: override metrics if flags are set

* cmd/geth: write metrics regardless if enabled

* cmd/geth: renamed to metricsfromcliargs

* metrics: add default configuration

* core/state/snapshot: write snapshot generator in batch

* core: refactor the tests

* core: update tests

* core: update tests

Adding warnings of free disk space left and graceful shutdown when there is not enough space left.
This also adds a flag datadir.minfreedisk which can be used to set the trigger for low disk space, and setting it to zero disables the check. 

Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Felix Lange <fjl@twurst.com>

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.

This is a simple refactoring, extracting common ancestor
negotiation logic to named function

Squashed from the following commits:

core/state: lazily init snapshot storage map
core/state: fix flawed meter on storage reads
core/state: make statedb/stateobjects reuse a hasher
core/blockchain, core/state: implement new trie prefetcher
core: make trie prefetcher deliver tries to statedb
core/state: refactor trie_prefetcher, export storage tries
blockchain: re-enable the next-block-prefetcher
state: remove panics in trie prefetcher
core/state/trie_prefetcher: address some review concerns

sq

core: improve trie updates (part 2)

This fixes #22131 and adds a test reproducing the issue.

This adds a way to get the error of the failing subscription
for logging/debugging purposes.

Co-authored-by: Felix Lange <fjl@twurst.com>

Fixes a special case when the trie only has a single trie node and the range proof only contains a single element.

…a (#22211)

It takes three lines of code to get to runtime.nanotime, no need to
pull a dependency for that.

* cmd, geth: Reflect command being optional - closes 22218

* cmd, geth: Set current year to 2021

* cmd, geth: Reflect command being optional - closes 22218

* cmd, geth: Set current year to 2021

* eth/protocols/snap: make timeout configurable

* eth/protocols/snap: snap sync testing

* eth/protocols/snap: test to trigger panic

* eth/protocols/snap: fix race condition on timeouts

* eth/protocols/snap: return error on cancelled sync

* squashme: updates + test causing panic + properly serve accounts in order

* eth/protocols/snap: revert failing storage response

* eth/protocols/snap: revert on bad responses (storage, code)

* eth/protocols/snap: fix account handling stall

* eth/protocols/snap: fix remaining revertal-issues

* eth/protocols/snap: timeouthandler for bytecode requests

* eth/protocols/snap: debugging + fix log message

* eth/protocols/snap: fix misspelliings in docs

* eth/protocols/snap: fix race in bytecode handling

* eth/protocols/snap: undo deduplication of storage roots

* synctests: refactor + minify panic testcase

* eth/protocols/snap: minor polishes

* eth: minor polishes to make logs more useful

* eth/protocols/snap: remove excessive logs from the test runs

* eth/protocols/snap: stress tests with concurrency

* eth/protocols/snap: further fixes to test cancel channel handling

* eth/protocols/snap: extend test timeouts on CI

Co-authored-by: Péter Szilágyi <peterke@gmail.com>

This updates go module dependencies as discussed in #22050.

This PR fixes the receipt status field to be decimal instead of a hex string,
as called for by the spec.

Co-authored-by: Martin Holst Swende <martin@swende.se>

This updates the goupnp dependency, fixing huin/goupnp#33

When a sethead/rewind finds that the targeted block is missing, it resets to genesis instead of crashing. Closes #22129

This moves the tracing RPC API implementation to package eth/tracers.
By doing so, package eth no longer depends on tracing and the duktape JS engine.

The change also enables tracing using the light client. All tracing methods work with the
light client, but it's a lot slower compared to using a full node.

…2171)

* eth, p2p: reserve half peer slots for snap peers during snap sync

* eth: less logging

* eth: rework the eth/snap peer reservation logic

* eth: rework the eth/snap peer reservation logic (again)

* tests/fuzzers/abi: fixed one-off panic with int.Min64 value

* tests/fuzzers/abi: fixed one-off panic with int.Min64 value

This adds more info about submitted transactions in log messages.

Co-authored-by: Felix Lange <fjl@twurst.com>

This PR implements the following modifications

- Don't shortcut check if block is present, thus avoid disk lookup
- Don't check hash ancestry in early-check (it's still done in parallel checker)
- Don't check time.Now for every single header

Charts and background info can be found here: https://github.com/holiman/headerimport/blob/main/README.md
With these changes, writing 1M headers goes down to from 80s to 62s.

* accounts/scwallet: use go-ethereum crypto instead of go-ecdh

github.com/wsddn/go-ecdh is a wrapper package for ECDH functionality
with any elliptic curve.

Since 'generic' ECDH is not required in accounts/scwallet (the curve is
always secp256k1), we can just use the standard library functionality
and our own crypto libraries to perform ECDH and save a dependency.

* Update accounts/scwallet/securechannel.go

Co-authored-by: Guillaume Ballet <gballet@gmail.com>

* Use the correct key

Co-authored-by: Guillaume Ballet <gballet@gmail.com>

This PR enables running the new discv5 protocol in both LES client
and server mode. In client mode it mixes discv5 and dnsdisc iterators
(if both are enabled) and filters incoming ENRs for "les" tag and fork ID.
The old p2p/discv5 package and all references to it are removed.

Co-authored-by: Felix Lange <fjl@twurst.com>

It never worked, whisper uses polling.

Co-authored-by: Felix Lange <fjl@twurst.com>

Removes the yolov2 definition, adds yolov3, including EIP-2565. This PR also disables some of the erroneously generated blockchain and statetests, and adds the new genesis hash + alloc for yolov3. 
This PR disables the CLI switches for yolo, since it's not complete until we merge support for 2930.

* les/utils: Limiter

* les/utils: dropped prior weight vs variable cost logic, using fixed weights

* les/utils: always create node selector in addressGroup

* les/utils: renamed request weight to request cost

* les/utils: simplified and improved the DoS penalty mechanism

* les/utils: minor fixes

* les/utils: made selection weight calculation nicer

* les/utils: fixed linter warning

* les/utils: more precise and reliable probabilistic test

* les/utils: fixed linter warning

Fixes #20123

* eth: check snap satelliteness, delegate drop to eth

* eth: better handle eth/snap satellite relation, merge reg/unreg paths

…184)

This change allows users to set a custom path prefix on which to mount the http-rpc
or ws-rpc handlers via the new flags --http.rpcprefix and --ws.rpcprefix.

Fixes #21826

Co-authored-by: Felix Lange <fjl@twurst.com>

* remove uneeded convertion type

* remove redundant type in composite literal

* omit explicit type where implicit

* remove unused redundant parenthesis

* remove redundant import alias duktape

The PR makes use of the stacktrie, which is is more lenient on resource consumption, than the regular trie, in cases where we only need it for DeriveSha

fixes an issue where local transactions that were included in the chain before a SetHead were rejected if resubmitted, since the txpool had not reset the state to the current (older) state.

…#21812)

This pr adds consensys' gurvy bn256 variant into the code for differential fuzzing.

This moves the eth config definition into a separate package, eth/ethconfig. 
Packages eth and les can now import this common package instead of
importing eth from les, reducing dependencies.

Co-authored-by: Felix Lange <fjl@twurst.com>

Prevents a situation where we (not running snap) connects with a peer running snap, and get stalled waiting for snap registration to succeed (which will never happen), which cause a waitgroup wait to halt shutdown

…ce (#22274)

fixes an regression which caused build failure on certain platforms

cmd/utils: enable snapshots by default

* cmd, core, tests: initial state pruner

core: fix db inspector

cmd/geth: add verify-state

cmd/geth: add verification tool

core/rawdb: implement flatdb

cmd, core: fix rebase

core/state: use new contract code layout

core/state/pruner: avoid deleting genesis state

cmd/geth: add helper function

core, cmd: fix extract genesis

core: minor fixes

contracts: remove useless

core/state/snapshot: plugin stacktrie

core: polish

core/state/snapshot: iterate storage concurrently

core/state/snapshot: fix iteration

core: add comments

core/state/snapshot: polish code

core/state: polish

core/state/snapshot: rebase

core/rawdb: add comments

core/rawdb: fix tests

core/rawdb: improve tests

core/state/snapshot: fix concurrent iteration

core/state: run pruning during the recovery

core, trie: implement martin's idea

core, eth: delete flatdb and polish pruner

trie: fix import

core/state/pruner: add log

core/state/pruner: fix issues

core/state/pruner: don't read back

core/state/pruner: fix contract code write

core/state/pruner: check root node presence

cmd, core: polish log

core/state: use HEAD-127 as the target

core/state/snapshot: improve tests

cmd/geth: fix verification tool

cmd/geth: use HEAD as the verification default target

all: replace the bloomfilter with martin's fork

cmd, core: polish code

core, cmd: forcibly delete state root

core/state/pruner: add hash64

core/state/pruner: fix blacklist

core/state: remove blacklist

cmd, core: delete trie clean cache before pruning

cmd, core: fix lint

cmd, core: fix rebase

core/state: fix the special case for clique networks

core/state/snapshot: remove useless code

core/state/pruner: capping the snapshot after pruning

cmd, core, eth: fixes

core/rawdb: update db inspector

cmd/geth: polish code

core/state/pruner: fsync bloom filter

cmd, core: print warning log

core/state/pruner: adjust the parameters for bloom filter

cmd, core: create the bloom filter by size

core: polish

core/state/pruner: sanitize invalid bloomfilter size

cmd: address comments

cmd/geth: address comments

cmd/geth: address comment

core/state/pruner: address comments

core/state/pruner: rename homedir to datadir

cmd, core: address comments

core/state/pruner: address comment

core/state: address comments

core, cmd, tests: address comments

core: address comments

core/state/pruner: release the iterator after each commit

core/state/pruner: improve pruner

cmd, core: adjust bloom paramters

core/state/pruner: fix lint

core/state/pruner: fix tests

core: fix rebase

core/state/pruner: remove atomic rename

core/state/pruner: address comments

all: run go mod tidy

core/state/pruner: avoid false-positive for the middle state roots

core/state/pruner: add checks for middle roots

cmd/geth: replace crit with error

* core/state/pruner: fix lint

* core: drop legacy bloom filter

* core/state/snapshot: improve pruner

* core/state/snapshot: polish concurrent logs to report ETA vs. hashes

* core/state/pruner: add progress report for pruning and compaction too

* core: fix snapshot test API

* core/state: fix some pruning logs

* core/state/pruner: support recovering from bloom flush fail

Co-authored-by: Péter Szilágyi <peterke@gmail.com>

params: just to make snapshots a bit more official

core/state/pruner: fix compaction after pruning

core/state/pruner: fix compaction range error

adds a flag --log.json which if enabled makes the client format logs with JSON.

There was a dormant error with structured inputs that failed unpacking.
This commit fixes the error by switching casting to the better abi.ConvertType function.
It also adds a test for calling a view function that returns a struct

cmd/utils, eth/ethconfig: unindex txs older than ~1 year

core: fix temp memory blowup caused by defers holding on to state

Make geth build on FreeBSD, fixes #22309.

trie: fix bloom crash on fast sync restart

core/state/snapshot: ensure Cap retains a min number of layers

This updates the eth protocol test suite to use the message type
definitions of the 'production' protocol implementation in eth/protocols/eth.

eth: fix snap sync cancellation

This PR optimizes the broadcast loop. Instead of iterating twice through a given set of transactions to weed out which peers have and which do not have a tx, to send/announce transactions, we do it only once.

* core/state: copy the snap when copying the state

* core/state: deep-copy snap stuff during state Copy

io.Reader may return n > 0 and io.EOF at the end of the input stream.
readFull did not handle this correctly, looking only at the error. This fixes
it to check for n == len(buf) as well.

* eth/protocols/eth: split up the eth protocol handlers

* eth/protocols/eth: define eth-66 protocol messages

* eth/protocols/eth: poc implement getblockheaders on eth/66

* eth/protocols/eth: implement remaining eth-66 handlers

* eth/protocols: define handler map for eth 66

* eth/downloader: use protocol constants from eth package

* eth/protocols/eth: add ETH66 capability

* eth/downloader: tests for eth66

* eth/downloader: fix error in tests

* eth/protocols/eth: use eth66 for outgoing requests

* eth/protocols/eth: remove unused error type

* eth/protocols/eth: define protocol length

* eth/protocols/eth: fix pooled tx over eth66

* protocols/eth/handlers: revert behavioural change which caused tests to fail

* eth/downloader: fix failing test

* eth/protocols/eth: add testcases + fix flaw with header requests

* eth/protocols: change comments

* eth/protocols/eth: review fixes + fixed flaw in RequestOneHeader

* eth/protocols: documentation

* eth/protocols/eth: review concerns about types

In the random sync algorithm used by the DNS node iterator, we first pick a random
tree and then perform one sync action on that tree. This happens in a loop until any
node is found. If no trees contain any nodes, the iterator will enter a hot loop spinning
at 100% CPU.

The fix is complicated. The iterator now checks if a meaningful sync action can
be performed on any tree. If there is nothing to do, it waits for the next root record
recheck time to arrive and then tries again.

Fixes #22306

* les/lespay/server: fix balance expiration and add test

* les: move client balances to a new db

* les: rename lespayDb to lesDb

* les: refactored server handler

* tests/fuzzers/les: add fuzzer for les server handler

* tests, les: update les fuzzer

tests: update les fuzzer

tests/fuzzer/les: release resources

tests/fuzzer/les: pre-initialize all resources

* les: refactored server handler and fuzzer

Co-authored-by: rjl493456442 <garyrong0905@gmail.com>

This PR introduces:

- db.put to put a value into the database
- db.get to read a value from the database
- db.delete to delete a value from the database
- db.stats to check compaction info from the database
- db.compact to trigger a db compaction

It also moves inspectdb to db.inspect.

This PR prevents users from submitting transactions without EIP-155 enabled. This behaviour can be overridden by specifying the flag --rpc.allow-unprotected-txs=true.