ToHex was deprecated a couple years ago. The last remaining use
was in ToHexArray, which itself only had a single call site.
This just moves ToHexArray near its only remaining call site and
implements it using hexutil.Encode. This changes the default behaviour
of ToHexArray and with it the behaviour of eth_getProof. Previously we
encoded an empty slice as 0, now the empty slice is encoded as 0x.
This adds a few tiny fixes for les and the p2p simulation framework:
LES Parts
- Keep the LES-SERVER connection even it's non-synced
We had this idea to reject the connections in LES protocol if the les-server itself is
not synced. However, in LES protocol we will also receive the connection from another
les-server. In this case even the local node is not synced yet, we should keep the tcp
connection for other protocols(e.g. eth protocol).
- Don't count "invalid message" for non-existing GetBlockHeadersMsg request
In the eth syncing mechanism (full sync, fast sync, light sync), it will try to fetch
some non-existent blocks or headers(to ensure we indeed download all the missing chain).
In this case, it's possible that the les-server will receive the request for
non-existent headers. So don't count it as the "invalid message" for scheduling
dropping.
- Copy the announce object in the closure
Before the les-server pushes the latest headers to all connected clients, it will create
a closure and queue it in the underlying request scheduler. In some scenarios it's
problematic. E.g, in private networks, the block can be mined very fast. So before the
first closure is executed, we may already update the latest_announce object. So actually
the "announce" object we want to send is replaced.
The downsize is the client will receive two announces with the same td and then drop the
server.
P2P Simulation Framework
- Don't double register the protocol services in p2p-simulation "Start".
The protocols upon the devp2p are registered in the "New node stage". So don't reigster
them again when starting a node in the p2p simulation framework
- Add one more new config field "ExternalSigner", in order to use clef service in the
framework.
* core/state/snapshot: introduce snapshot journal version
* core: update the disk layer in an atomic way
* core: persist the disk layer generator periodically
* core/state/snapshot: improve logging
* core/state/snapshot: forcibly ensure the legacy snapshot is matched
* core/state/snapshot: add debug logs
* core, tests: fix tests and special recovery case
* core: polish
* core: add more blockchain tests for snapshot recovery
* core/state: fix comment
* core: add recovery flag for snapshot
* core: add restart after start-after-crash tests
* core/rawdb: fix imports
* core: fix tests
* core: remove log
* core/state/snapshot: fix snapshot
* core: avoid callbacks in SetHead
* core: fix setHead cornercase where the threshold root has state
* core: small docs for the test cases
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
* core/state/snapshot: add diskRoot function
* core/state/snapshot: disable iteration if the snapshot is generating
* core/state/snapshot: simplify the function
* core/state: panic for undefined layer
The old one was wrong in two ways: the first block in chain.rlp was the
genesis block, and the genesis difficulty was below minimum difficulty.
This also contains some other fixes to the test.
* accounts/keystore: add timeout to test to prevent failure on travis
The TestWalletNotifications test sporadically fails on travis.
This is because we shutdown the event collection before all events are received.
Adding a small timeout (10 milliseconds) allows the collector to be scheduled
and to consume all pending events before we shut it down.
* accounts/keystore: added newlines back in
* accounts/keystore: properly fix the walletNotifications test
* miner: exit loop when downloader Done or Failed
Following the logic of the comment at the method,
this fixes a regression introduced at 7cf56d6f06
, which would allow external parties to DoS with
blocks, preventing mining progress.
Signed-off-by: meows <b5c6@protonmail.com>
* miner: remove ineff assign (lint)
Signed-off-by: meows <b5c6@protonmail.com>
* miner: update test re downloader events
Signed-off-by: meows <b5c6@protonmail.com>
* Revert "miner: remove ineff assign (lint)"
This reverts commit eaefcd34ab4862ebc936fb8a07578aa2744bc058.
* Revert "miner: exit loop when downloader Done or Failed"
This reverts commit 23abd34265aa246c38fc390bb72572ad6ae9fe3b.
* miner: add test showing imprecise TestMiner
Signed-off-by: meows <b5c6@protonmail.com>
* miner: fix waitForMiningState precision
This helper function would return an affirmation
on the first positive match on a desired bool.
This was imprecise; it return false positives
by not waiting initially for an 'updated' value.
This fix causes TestMiner_2 to fail, which is
expected.
Signed-off-by: meows <b5c6@protonmail.com>
* miner: remove TestMiner_2 demonstrating broken test
This test demonstrated the imprecision of the test
helper function waitForMiningState. This function
has been fixed with 6d365c2851, and this test test
may now be removed.
Signed-off-by: meows <b5c6@protonmail.com>
* miner: fix test regarding downloader event/mining expectations
See comment for logic.
Signed-off-by: meows <b5c6@protonmail.com>
* miner: add test describing expectations for downloader/mining events
We expect that once the downloader emits a DoneEvent,
signaling a successful sync, that subsequent StartEvents
are not longer permitted to stop the miner.
This prevents a security vulnerability where forced syncs via
fake high blocks would stall mining operation.
Signed-off-by: meows <b5c6@protonmail.com>
* miner: use 'canStop' state to fix downloader event handling
- Break downloader event handling into event
separating Done and Failed events. We need to
treat these cases differently since a DoneEvent
should prevent the miner from being stopped on
subsequent downloader Start events.
- Use canStop state to handle the one-off
case when a downloader first succeeds.
Signed-off-by: meows <b5c6@protonmail.com>
* miner: improve comment wording
Signed-off-by: meows <b5c6@protonmail.com>
* miner: start mining on downloader events iff not already mining
Signed-off-by: meows <b5c6@protonmail.com>
* miner: refactor miner update logic w/r/t downloader events
This makes mining pause/start logic regarding downloader
events more explicit. Instead of eternally handling downloader
events after the first done event, the subscription is closed
when downloader events are no longer actionable.
Signed-off-by: meows <b5c6@protonmail.com>
* miner: fix handling downloader events on subcription closed
Signed-off-by: meows <b5c6@protonmail.com>
* miner: (lint:gosimple) use range over chan instead of for/select
Signed-off-by: meows <b5c6@protonmail.com>
* miner: refactor update loop to remove race condition
The go routine handling the downloader events handling
vars in parallel with the parent routine, causing a
race condition.
This change, though ugly, remove the condition while
still allowing the downloader event subscription to be
closed when the miner has no further use for it (ie DoneEvent).
* miner: alternate fix for miner-flaw
Co-authored-by: meows <b5c6@protonmail.com>
* peer: return localAddr instead of name to prevent spam
We currently use the name (which can be freely set by the peer) in several log messages.
This enables malicious actors to write spam into your geth log.
This commit returns the localAddr instead of the freely settable name.
* p2p: reduce usage of peer.Name in warn messages
* eth, p2p: use truncated names
* Update peer.go
Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
Co-authored-by: Felix Lange <fjl@twurst.com>
For some reason, using the shared hash causes a cryptographic incompatibility
when using Go 1.15. I noticed this during the development of Discovery v5.1
when I added test vector verification.
The go library commit that broke this is golang/go@97240d5, but the
way we used HKDF is slightly dodgy anyway and it's not a regression.
* core/types: tests for bloom
* core/types: refactored bloom filter for receipts, added tests
core/types: replaced old bloom implementation
core/types: change interface of bloom add+test
* core/types: refactor bloom
* core/types: minor tweak on LogsBloom
Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
* core/state/snapshot: exit Geth if generator hits missing trie nodes
* core/state/snapshot: error instead of hard die on generator fault
* core/state/snapshot: don't enable logging on the tests
