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

* les: move client balances to a new db

* les: rename lespayDb to lesDb

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

* 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

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.

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

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

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.

eth: fix snap sync cancellation

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

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

trie: fix bloom crash on fast sync restart

Make geth build on FreeBSD, fixes #22309.

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

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

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

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

core/state/pruner: fix compaction range error

core/state/pruner: fix compaction after pruning

params: just to make snapshots a bit more official

* 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>

cmd/utils: enable snapshots by default

fixes an regression which caused build failure on certain platforms

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

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>