eth/protocols, metrics, p2p: add handler performance metrics

core: fix condition on header verification

* cmd/devp2p: fix comparison of TXT record value

The AWS API returns quoted DNS strings, so we must encode the new value
before comparing it against the existing record content.

* cmd/devp2p: add test

* cmd/devp2p: fix typo and rename val -> newValue

Fixes the CaptureStart api to include the EVM, thus being able to set the statedb early on. This pr also exposes the struct we used internally in the interpreter to encapsulate the contract, mem, stack, rstack, so we pass it as a single struct to the tracer, and removes the error returns on the capture methods. 

* eth/protocols/snap: fix snap sync

* eth/protocols/snap: fix tests

* eth: fix tiny

* eth: update tests

* eth: update tests

* core/state/snapshot: testcase for #22534

* eth/protocols/snap: fix boundary loss on full-but-proven range

* core/state/snapshot: lintfix

* eth: address comment

* eth: fix handler
Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>

This makes the rate limit apply regardless of whether the node is
already cached.

In Geth v1.10, we changed the structure of the "les" ENR entry. As a result, the DHT crawler that creates the DNS lists
no longer recognizes the les nodes, which is fixed in this commit. 

* cmd/devp2p: skip ENR field tails properly in nodeset filter
* cmd/devp2p: fix tail decoder for snap as well
* les: fix tail decoding in "eth" ENR entry

* internal/web3ext,node: migrate node admin API (Start|Stop)RPC->HTTP

Corresponding CLI flags --rpc have been moved to --http.

This moves the admin module HTTP RPC start/stop
methods to an equivalent namespace.

Rel https://github.com/ethereum/go-ethereum/pull/22263

Date: 2021-03-08 08:00:11-06:00
Signed-off-by: meows <b5c6@protonmail.com>

* internal/web3ext: fix startRPC/HTTP param count (4->5)

Date: 2021-03-16 06:13:23-05:00
Signed-off-by: meows <b5c6@protonmail.com>

eth/protocols/snap, eth/downloader: don't use bloom filter in snap sync

core/state/snapshot: fix panic on missing parent

Check the input parameters against the actual head block, exit on error

* all: add read-only option to database

* all: fixes tests

* cmd/geth: migrate flags

* cmd/geth: fix the compact

* cmd/geth: fix the format

* cmd/geth: fix log

* cmd: add chain-readonly

* core: add readonly notion to freezer

* core/rawdb: add log

* core/rawdb: fix freezer close

* cmd: fix

* cmd, core: construct db

* core: update tests

* accounts: eip-712 signing for ledger

* address review comments

Add old block announcement test to eth test suite, checks to make sure old block announcement isn't propagated

This PR fixes a regression introduced in #22360, when we updated to the v2 of the AWS sdk, which causes current crawler to just get the same first 100 results over and over, and get stuck in a loop.

This fixes the calculation of the tree branch factor. With the new
formula, we now creat at most 13 children instead of 30, ensuring
the TXT record size will be below 370 bytes.

This updates the DNS deployer to use AWS SDK v2. Migration is relatively
seamless, although there were two locations that required a slightly
different approach to achieve the same results. In particular, waiting for
DNS change propagation is very different with SDK v2. 

This change also optimizes DNS updates by publishing all changes before
waiting for propagation.

This pulls in a fix to skip the broadcast on interfaces which are down.

This pulls in a fix for a corruption issue when the process crashes
while a new manifest file is being added.

This adds a new option to avoid sending the transaction which is
created by calling a bound contract method.

The wantErr field was disused, and the error returned by HeaderByNumber
was not properly tested.

This simplifies the error checking using errors.Is and asserts that getting
an expected missing header returns ethereum.NotFound. Also adds a nil
check condition for header.Number before using big.Int's Sign method.

This PR fixes an issue with the eth66 test suite where, during a readAndServe when
the test is manually responding to GetBlockHeader requests, it now responds
with a BlockHeaders eth66 packet that includes the inbound request ID.

This PR fixes multiple issues with the UDP connection pre-negotiation feature:
- the enable condition was wrong (it checked the existence of the DiscV5 struct where it wasn't initialized yet, disabling the feature even if discv5 was enabled)
- the server pool queried already connected nodes when the discovery iterators returned them again
- servers responded positively before they were synced and really willing to accept connections

Metrics are also added on the server side that count the positive and negative replies to served connection queries.

This PR fixes multiple issues with the UDP connection pre-negotiation feature:

- the enable condition was wrong (it checked the existence of the DiscV5 struct where it wasn't initialized yet, disabling the feature even if discv5 was enabled)
- the server pool queried already connected nodes when the discovery iterators returned them again
- servers responded positively before they were synced and really willing to accept connections

Metrics are also added on the server side that count the positive and negative replies to served connection queries.

* core/rawdb: more verbose error logs + better hashing

* core/rawdb: add failing testcase

* core/rawdb: properly hash transactions while indexing/unindexing

* core/rawdb: exit on error + better log msg