Age | Commit message (Collapse) | Author |
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37fe80e6267094f6051ccf9bec0c7f1a6b9e15da Only consider addrv2 peers for relay of non-addrv1 addresses (Pieter Wuille)
83f8821a6f41854edd5c0b11deabba658890cde1 refactor: add IsAddrCompatible() to CNode (Pieter Wuille)
Pull request description:
When selecting peers to relay an address to, only pick addrv2-capable ones if the address cannot be represented in addr(v1).
Without this I expect that propagation of torv3 addresses over the cleartext network will be very hard for a while.
ACKs for top commit:
jonatack:
ACK 37fe80e6267094f6051ccf9bec0c7f1a6b9e15da
vasild:
ACK 37fe80e6267094f6051ccf9bec0c7f1a6b9e15da
Tree-SHA512: 18a854ea43ad473cf89b9c5193b524109d7af75c26f7aa7e26cd72ad0db52f19c8001d566c607a7e6772bc314f770f09b6c3e07282d110c5daea193edc592cd2
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fee88237e03c21bf81f21098e6b89ecfa5327cee Assert eviction at >= 29 candidates. Assert non-eviction at <= 20 candidates. (practicalswift)
685c428de0fb63ca6ec1419bb112f07d27bcdf14 test: Add unit testing of node eviction logic (practicalswift)
ed73f8cee0d7b7facbd2e8dde24a237f20c48c0c net: Move eviction node selection logic to SelectNodeToEvict(...) (practicalswift)
Pull request description:
Add unit testing of node eviction logic.
Closes #19966.
ACKs for top commit:
jonatack:
ACK fee88237e03c21bf81f21098e6b89ecfa5327cee
MarcoFalke:
ACK fee88237e03c21bf81f21098e6b89ecfa5327cee 🐼
Tree-SHA512: 0827c35609122ca42bfabb17feaaee35c191ab4dc2e428282af425a6c176eaeaff2789b74a4f7eb4ca6b8cb10603068e90ca800e6ef3bc3904d50e76616f7a2b
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fa86217e97234aac6f815a6768afc1b87b8b2ae8 doc: Move add relay comment in net to correct place (MarcoFalke)
Pull request description:
The comment was previously attached to `m_addr_known`, but now it is attached to `id`, which is wrong.
Fix that by moving the comment to `RelayAddrsWithConn`.
ACKs for top commit:
practicalswift:
cr ACK fa86217e97234aac6f815a6768afc1b87b8b2ae8: patch looks correct
jnewbery:
ACK fa86217e97
theStack:
Code review ACK fa86217e97234aac6f815a6768afc1b87b8b2ae8 🌳
Tree-SHA512: ec3d5f1996aded38947d2a5fd0bb63539e88f83964cd3254984002edfd51abb4dde813c7c81619a8a3a5c55b7e9ae83c8c5be8ad6c84b4593ed3bbf463fe8979
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Can be reviewed with
--ignore-all-space --color-moved=dimmed-zebra --color-moved-ws=ignore-all-space
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DEFAULT_MAX_UPLOAD_TARGET is a compile time constant.
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It's not actually possible to change this value, so remove the
indirection of it being a conn option.
DEFAULT_MAX_UPLOAD_TIMEFRAME is a compile time constant.
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This was introduced in 872fee3fccc8b33b9af0a401b5f85ac5504b57eb and it's unclear
if it's ever been used.
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This has been unused since f3552da81393a8e78ce3e2afed0b9c9d1ff5cee0.
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To make eclipse attacks more difficult, regularly initiate outbound connections
and stay connected long enough to sync headers and potentially learn of new
blocks. If we learn a new block, rotate out an existing block-relay peer in
favor of the new peer.
This augments the existing outbound peer rotation that exists -- currently we
make new full-relay connections when our tip is stale, which we disconnect
after waiting a small time to see if we learn a new block. As block-relay
connections use minimal bandwidth, we can make these connections regularly and
not just when our tip is stale.
Like feeler connections, these connections are not aggressive; whenever our
timer fires (once every 5 minutes on average), we'll try to initiate a new
block-relay connection as described, but if we fail to connect we just wait for
our timer to fire again before repeating with a new peer.
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343dc4760fd2407895fc8b3417a504b194429156 test: add test for high-bandwidth mode states in getpeerinfo (Sebastian Falbesoner)
dab6583307ceb7dd94affcc3482ddcc1a5747147 doc: release note for new getpeerinfo fields "bip152_hb_{from,to}" (Sebastian Falbesoner)
a7ed00f8bbc07dfc09f9e0a5bae10a1afe7612bb rpc: expose high-bandwidth mode states via getpeerinfo (Sebastian Falbesoner)
30bc8fab6833e0447ceadd3fff1566a680e33a98 net: save high-bandwidth mode states in CNodeStats (Sebastian Falbesoner)
Pull request description:
Fixes #19676, "_For every peer expose through getpeerinfo RPC whether or not we selected them as HB peers, and whether or not they selected us as HB peers._" See [BIP152](https://github.com/bitcoin/bips/blob/master/bip-0152.mediawiki), in particular the [protocol flow diagram](https://github.com/bitcoin/bips/raw/master/bip-0152/protocol-flow.png). The newly introduced states are changed on the following places in the code:
* on reception of a `SENDCMPCT` message with valid version, the field `m_highbandwidth_from` is changed depending on the first integer parameter in the message (1=high bandwidth, 0=low bandwidth), i.e. it just mirrors the field `CNodeState.fPreferHeaderAndIDs`.
* after adding a `SENDCMPCT` message to the send queue, the field `m_highbandwidth_to` is changed depending on how the first integer parameter is set (same as above)
Note that after receiving `VERACK`, the node also sends `SENDCMPCT`, but that is only to announce the preferred version and never selects high-bandwidth mode, hence there is no need to change the state variables there, which are initialized to `false` anyways.
ACKs for top commit:
naumenkogs:
reACK 343dc4760fd2407895fc8b3417a504b194429156
jonatack:
re-ACK 343dc4760fd2407895fc8b3417a504b194429156 per `git range-diff 7ea6499 4df1d12 343dc47`
Tree-SHA512: f4999e6a935266812c2259a9b5dc459710037d3c9e938006d282557cc225e56128f72965faffb207fc60c6531fab1206db976dd8729a69e8ca29d4835317b99f
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Also remove vestigial commend in init.cpp
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cadb77a6ab8a3e6f56062cfaec4dd8168c71b39d net: Add compat.h header for htonl function (Hennadii Stepanov)
f796f0057bc7dad8e7065831b07f432fc0fb9f08 net: Drop unneeded headers when compat.h included (Hennadii Stepanov)
467c34644861a5267601255650e27c7aadab31dc net: Drop unneeded Windows headers in compat.h (Hennadii Stepanov)
Pull request description:
It is the `compat.h` header's job to provide platform-agnostic interfaces for internet operations.
No need in `#include <arpa/inet.h>` scattered around.
ACKs for top commit:
practicalswift:
re-ACK cadb77a6ab8a3e6f56062cfaec4dd8168c71b39d: patch looks even better
laanwj:
Code review ACK cadb77a6ab8a3e6f56062cfaec4dd8168c71b39d
Tree-SHA512: 625ff90b2806310ab856a6ca1ddb6d9a85aa70f342b323e8525a711dd12219a1ecec8373ec1dca5a0653ffb11f9b421753887b25615d991ba3132c1cca6a3c6e
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fa5ed3b4ca609426b2622cad235e107d33db7b30 net: Use Span in ReceiveMsgBytes (MarcoFalke)
Pull request description:
Pass a data pointer and a size as span in `ReceiveMsgBytes` to get the benefits of a span
ACKs for top commit:
jonatack:
ACK fa5ed3b4ca609426b2622cad235e107d33db7b30 code review, rebased to current master 12a1c3ad1a43634, debug build, unit tests, ran bitcoind/-netinfo/getpeerinfo
theStack:
ACK fa5ed3b4ca609426b2622cad235e107d33db7b30
Tree-SHA512: 89bf111323148d6e6e50185ad20ab39f73ab3a58a27e46319e3a08bcf5dcf9d6aa84faff0fd6afb90cb892ac2f557a237c144560986063bc736a69ace353ab9d
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Ensure nMaxOutboundTotalBytesSentInCycle and nMaxOutboundCycleStartTime
are initialized even if CConnman::Start() is not called.
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Connected() updates the time we serve in addr messages, so avoid leaking
block-relay-only peer connections by avoiding these calls.
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g_cs_orphans
da0988daf1d665a4644ad3f1ddf3f8a8bdd88cde scripted-diff: rename vRecvGetData (Neha Narula)
ba951812ec0cc8ebee5911a582f188525b76ff0a Guard vRecvGetData (now in net processing) with its own mutex (Neha Narula)
2d9f2fca43aadcdda4d644cddab36dca88b40b97 Move vRecvGetData to net processing (Neha Narula)
673247b58cd1252ab7e99f7d63ead05cc100cef2 Lock before checking if orphan_work_set is empty; indicate it is guarded (Neha Narula)
8803aee66813d27ddbdfce937ab9c35f8f7c35bc Move m_orphan_work_set to net_processing (Neha Narula)
9c47cb29f9f525ee58acc629825a97075156d764 [Rename only] Rename orphan_work_set to m_orphan_work_set. (Neha Narula)
Pull request description:
Add annotations to guard `vRecvGetData` and `orphan_work_set` and fix up places where they were accessed without a lock. There is no current data race because they happen to be accessed by only one thread, but this might not always be the case.
Original discussion: https://github.com/bitcoin/bitcoin/pull/18861#discussion_r451778445
ACKs for top commit:
MarcoFalke:
review ACK da0988daf1d665a4644ad3f1ddf3f8a8bdd88cde 🐬
jnewbery:
Code review ACK da0988daf1d665a4644ad3f1ddf3f8a8bdd88cde
hebasto:
ACK da0988daf1d665a4644ad3f1ddf3f8a8bdd88cde, I have reviewed the code and it looks correct, I agree it can be merged.
Tree-SHA512: 31cadd319ddc9273a87e77afc4db7339fd636e816b5e742eba5cb32927ac5cc07a672b2268d2d38a75a0f1b17d93836adab9acf7e52f26ea9a43f54efa57257e
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41dca087b73a3627107603694f5a982ea2a53189 [trivial] Extract connection type doc into file where it is used. (Amiti Uttarwar)
3069b56a456d98fca7c4a4ccd329581bd1f0b853 [doc] Improve help for getpeerinfo connection_type field. (Amiti Uttarwar)
Pull request description:
two commits addressing small followups from #19725
* first commit adds a clarification in the release notes that this field shouldn't be expected to be stable (suggested by sdaftuar in https://github.com/bitcoin/bitcoin/pull/19725#issuecomment-697421878)
* second commit moves the `CONNECTION_TYPE_DOC` object out of the header file to reduce the size of the binary (suggested by MarcoFalke in https://github.com/bitcoin/bitcoin/pull/19725#discussion_r495467895, he tested and found a decrease of 10kB)
ACKs for top commit:
achow101:
ACK 41dca087b73a3627107603694f5a982ea2a53189
laanwj:
Code review ACK 41dca087b73a3627107603694f5a982ea2a53189
Tree-SHA512: a555df978b4341fbe05deeb40a8a655f0d3c5c1c0adcc1737fd2cf61b204a5a24a301ca0c2b5a3616554d4abf8c57074d22dbda5a50d8450bc22c57679424985
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during restart
a490d074b3491427afbd677f5fa635b910f8bb34 doc: Add anchors.dat to files.md (Hennadii Stepanov)
0a85e5a7bc8dc6587963e2e37ac1b087a1fc97fe p2p: Try to connect to anchors once (Hennadii Stepanov)
5543c7ab285e90256cbbf9858249e028c9611cda p2p: Fix off-by-one error in fetching address loop (Hennadii Stepanov)
4170b46544231e7cf1d64ac3baa314083be37502 p2p: Integrate DumpAnchors() and ReadAnchors() into CConnman (Hennadii Stepanov)
bad16aff490dcf87722fbfe202a869fb24c734e1 p2p: Add CConnman::GetCurrentBlockRelayOnlyConns() (Hennadii Stepanov)
c29272a157d09a8125788c1b860e89b63b4cb36c p2p: Add ReadAnchors() (Hennadii Stepanov)
567008d2a0c95bd972f4031f31647c493d1bc2e8 p2p: Add DumpAnchors() (Hennadii Stepanov)
Pull request description:
This is an implementation of #17326:
- all (currently 2) outbound block-relay-only connections (#15759) are dumped to `anchors.dat` file
- on restart a node tries to connect to the addresses from `anchors.dat`
This PR prevents a type of eclipse attack when an attacker exploits a victim node restart to force it to connect to new, probably adversarial, peers.
ACKs for top commit:
jnewbery:
code review ACK a490d074b3
laanwj:
Code review ACK a490d074b3491427afbd677f5fa635b910f8bb34
Tree-SHA512: 0f5098a3882f2814be1aa21de308cd09e6654f4e7054b79f3cfeaf26bc02b814ca271497ed00018d199ee596a8cb9b126acee8b666a29e225b08eb2a49b02ddd
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simplify/improve -netinfo
6272604bef3b409455b010d134b4b62c8f6ff49f refactor: enable -netinfo to add future networks (i2p, cjdns) (Jon Atack)
82fd40216c70037480150d2b62e2b58c57784546 refactor: promote some -netinfo localvars to class members (Jon Atack)
5133fab37e8679e1d0d08ead4f5cccf4979dc15b cli: simplify -netinfo using getpeerinfo network field (Jon Atack)
4938a109adf13f2c60a50f08d4cc9ddb8d7ded96 rpc, test: expose CNodeStats network in RPC getpeerinfo (Jon Atack)
6df7882029854f0427d84b22081018ae77e27e66 net: add peer network to CNodeStats (Jon Atack)
Pull request description:
This PR:
- builds on #19991 and #19998
- exposes peer networks via a new getpeerinfo `network` field ("ipv4", "ipv6", or "onion"), and adds functional tests
- updates -netinfo to use getpeerinfo `network` rather than detecting the peer networks client-side
- refactors -netinfo to easily add future networks
ACKs for top commit:
laanwj:
ACK 6272604bef3b409455b010d134b4b62c8f6ff49f
Tree-SHA512: 28883487585135ceaaf84ce09131f2336e3193407f2e3df0960e3f4ac340f500ab94ffecb9d06a4c49bc05e3cca4f914ea4379860bea0bd5df2f834f74616015
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fd9a0060f028a4c01bd88f58777dea34bdcbafd1 Report and verify expirations (Pieter Wuille)
86f50ed10f66b5535f0162cf0026456a9e3f8963 Delete limitedmap as it is unused now (Pieter Wuille)
cc16fff3e476a9378d2176b3c1b83ad12b1b052a Make txid delay penalty also apply to fetches of orphan's parents (Pieter Wuille)
173a1d2d3f824b83777ac713e89bee69fd87692d Expedite removal of tx requests that are no longer needed (Pieter Wuille)
de11b0a4eff20da3e3ca52dc90948b5253d329c5 Reduce MAX_PEER_TX_ANNOUNCEMENTS for non-PF_RELAY peers (Pieter Wuille)
242d16477df1a024c7126bad23dde39cad217eca Change transaction request logic to use txrequest (Pieter Wuille)
5b03121d60527a193a84c339151481f9c9c1962b Add txrequest fuzz tests (Pieter Wuille)
3c7fe0e5a0ee1abf4dc263ae5310e68253c866e1 Add txrequest unit tests (Pieter Wuille)
da3b8fde03f2e8060bb7ff3bff17175dab85f0cd Add txrequest module (Pieter Wuille)
Pull request description:
This replaces the transaction request logic with an encapsulated class that maintains all the state surrounding it. By keeping it stand alone, it can be easily tested (using included unit tests and fuzz tests).
The major changes are:
* Announcements from outbound (and whitelisted) peers are now always preferred over those from inbound peers. This used to be the case for the first request (by delaying the first request from inbound peers), and a bias afters. The 2s delay for requests from inbound peers still exists, but after that, if viable outbound peers remain for any given transaction, they will always be tried first.
* No more hard cap of 100 in flight transactions per peer, as there is less need for it (memory usage is linear in the number of announcements, but independent from the number in flight, and CPU usage isn't affected by it). Furthermore, if only one peer announces a transaction, and it has over 100 in flight already, we still want to request it from them. The cap is replaced with a rule that announcements from such overloaded peers get an additional 2s delay (possibly combined with the existing 2s delays for inbound connections, and for txid peers when wtxid peers are available).
* The limit of 100000 tracked announcements is reduced to 5000; this was excessive. This can be bypassed using the PF_RELAY permission (to accommodate locally dumping a batch of many transactions).
This replaces #19184, rebased on #18044 and with many small changes.
ACKs for top commit:
ariard:
Code Review ACK fd9a006. I've reviewed the new TxRequestTracker, its integration in net_processing, unit/functional/fuzzing test coverage. I looked more for soundness of new specification rather than functional consistency with old transaction request logic.
MarcoFalke:
Approach ACK fd9a0060f028a4c01bd88f58777dea34bdcbafd1 🏹
naumenkogs:
Code Review ACK fd9a006. I've reviewed everything, mostly to see how this stuff works at the lower level (less documentation-wise, more implementation-wise), and to try breaking it with unexpected sequences of events.
jnewbery:
utACK fd9a0060f028a4c01bd88f58777dea34bdcbafd1
jonatack:
WIP light ACK fd9a0060f028a4c01bd88f58777dea34bdcbafd1 have read the code, verified that each commit is hygienic, e.g. debug build clean and tests green, and have been running a node on and off with this branch and grepping the net debug log. Am still unpacking the discussion hidden by GitHub by fetching it via the API and connecting the dots, storing notes and suggestions in a local branch; at this point none are blockers.
ryanofsky:
Light code review ACK fd9a0060f028a4c01bd88f58777dea34bdcbafd1, looking at txrequest implementation, unit test implementation, and net_processing integration, just trying to understand how it works and looking for anything potentially confusing in the implementation. Didn't look at functional tests or catch up on review discussion. Just a sanity check review focused on:
Tree-SHA512: ea7b52710371498b59d9c9cfb5230dd544fe9c6cb699e69178dea641646104f38a0b5ec7f5f0dbf1eb579b7ec25a31ea420593eff3b7556433daf92d4b0f0dd7
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This helps distinguish the member from any local variables.
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3984b78cd7f49e409377f2175a56e8e4bd71d1d8 test: Add tests for CNode::ConnectedThroughNetwork (Hennadii Stepanov)
49fba9c1aa699d3aa47ea4dafe07b47c8d0aac6e net: Add CNode::ConnectedThroughNetwork member function (Hennadii Stepanov)
d4dde24034d7467883b290111da60527ab8048f8 net: Add CNode::m_inbound_onion data member (Hennadii Stepanov)
Pull request description:
This PR:
- adds `CNode::ConnectedThroughNetwork` member function
- is based on #19991, and only last two commits belong to it
- is required for https://github.com/bitcoin-core/gui/pull/86 and #20002
ACKs for top commit:
jonatack:
re-ACK 3984b78cd7f49e409377f2175a56e8e4bd71d1d8 per `git diff 3989fcf 3984b78c`
laanwj:
Code review ACK 3984b78cd7f49e409377f2175a56e8e4bd71d1d8
Tree-SHA512: 23a9c8bca8dca75113b5505fe443b294f2d42d03c98c7e34919da12d8396beb8d0ada3a58ae16e3da04b7044395f72cf9c216625afc078256cd6c897ac42bf3d
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dcf0cb477699d11afd0ff37c8bfb2b1b4f7f1ee5 tor: make a TORv3 hidden service instead of TORv2 (Vasil Dimov)
353a3fdaad055eea42a0baf7326bdd591f541170 net: advertise support for ADDRv2 via new message (Vasil Dimov)
201a4596d92d640d5eb7e76cc8d959228fa09dbb net: CAddress & CAddrMan: (un)serialize as ADDRv2 (Vasil Dimov)
1d3ec2a1fda7446323786a52da1fd109c01aa6fb Support bypassing range check in ReadCompactSize (Pieter Wuille)
Pull request description:
This PR contains the two remaining commits from #19031 to complete the [BIP155](https://github.com/bitcoin/bips/blob/master/bip-0155.mediawiki) implementation:
`net: CAddress & CAddrMan: (un)serialize as ADDRv2`
`net: advertise support for ADDRv2 via new message`
plus one more commit:
`tor: make a TORv3 hidden service instead of TORv2`
ACKs for top commit:
jonatack:
re-ACK dcf0cb477699d11afd0ff37c8bfb2b1b4f7f1ee5 per `git diff 9b56a68 dcf0cb4` only change since last review is an update to the release notes which partially picked up the suggested text. Running a node on this branch and addnode-ing to 6 other Tor v3 nodes, I see "addrv2" and "sendaddrv2" messages in getpeerinfo in both the "bytesrecv_per_msg" and "bytessent_per_msg" JSON objects.
sipa:
ACK dcf0cb477699d11afd0ff37c8bfb2b1b4f7f1ee5
hebasto:
re-ACK dcf0cb477699d11afd0ff37c8bfb2b1b4f7f1ee5, the node works flawlessly in all of the modes: Tor-only, clearnet-only, mixed.
laanwj:
Edit: I have to retract this ACK for now, I'm having some problems with this PR on a FreeBSD node. It drops all outgoing connections with this dcf0cb477699d11afd0ff37c8bfb2b1b4f7f1ee5 merged on master (12a1c3ad1a43634d2a98717e49e3f02c4acea2fe).
ariard:
Code Review ACK dcf0cb4
Tree-SHA512: 28d4d0d817b8664d2f4b18c0e0f31579b2f0f2d23310ed213f1f436a4242afea14dfbf99e07e15889bc5c5c71ad50056797e9307ff8a90e96704f588a6171308
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This slightly reduces the size of the binary.
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Introduce a new message `sendaddrv2` to signal support for ADDRv2.
Send the new message immediately after sending the `VERACK` message.
Add support for receiving and parsing ADDRv2 messages.
Send ADDRv2 messages (instead of ADDR) to a peer if he has
advertised support for it.
Co-authored-by: Carl Dong <contact@carldong.me>
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This was introduced in 9519a9a4 for use with boost signals. Boost signals
have not been used in net since 8ad663c1, so this code is unused
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96571b3d4cb4cda0fd3d5a457ae4a12f615de82b doc: Update onion service target port numbers in tor.md (Hennadii Stepanov)
bb145c9050203b3f3d8bff10fb3bba31da51adb1 net: Extend -bind config option with optional network type (Hennadii Stepanov)
92bd3c1da48d17c8ba20349e18ad19051614bc1a net, refactor: Move AddLocal call one level up (Hennadii Stepanov)
57f17e57c8c410e10c16a46f7372c0ea8b7dd467 net: Pass onion service target to Tor controller (Hennadii Stepanov)
e3f07851f02857b4844fccb2e91070c5cd3aad4d refactor: Rename TorController::target to m_tor_control_center (Hennadii Stepanov)
fdd3ae4d264f26f87009879838dec035db5a7aed net, refactor: Refactor CBaseChainParams::RPCPort function (Hennadii Stepanov)
a5266d4546c444cfd6d36cb63d2df52ce9e689e2 net: Add alternative port for onion service (Hennadii Stepanov)
b3273cf4039d26e66ae58a8acb9d865461618d54 net: Use network byte order for in_addr.s_addr (Hennadii Stepanov)
Pull request description:
This PR adds ability to label incoming Tor connections as different from normal localhost connections.
Closes #8973.
Closes #16693.
Default onion service target ports are:
- 8334 on mainnnet
- 18334 on testnet
- 38334 on signet
- 18445 on regtest
To set the onion service target socket manually the extended `-bind` config option could be used:
```
$ src/bitcoind -help | grep -A 6 -e '-bind'
-bind=<addr>[:<port>][=onion]
Bind to given address and always listen on it (default: 0.0.0.0). Use
[host]:port notation for IPv6. Append =onion to tag any incoming
connections to that address and port as incoming Tor connections
(default: 127.0.0.1:8334=onion, testnet: 127.0.0.1:18334=onion,
signet: 127.0.0.1:38334=onion, regtest: 127.0.0.1:18445=onion)
```
Since [pr19991.02 update](https://github.com/bitcoin/bitcoin/pull/19991#issuecomment-698882284) this PR is an alternative to #19043.
ACKs for top commit:
Sjors:
re-utACK 96571b3d4cb4cda0fd3d5a457ae4a12f615de82b
vasild:
ACK 96571b3d4
laanwj:
Re-ACK 96571b3d4cb4cda0fd3d5a457ae4a12f615de82b
Tree-SHA512: cb0eade80f4b3395f405f775e1b89c086a1f09d5a4464df6cb4faf808d9c2245474e1720b2b538f203f6c1996507f69b09f5a6e35ea42633c10e22bd733d4438
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2ea62cae483b764e30f61c06d8ac65755bbd864c Improve docs about feeler connections (Gleb Naumenko)
Pull request description:
"feeler" and "test-before-evict" are two different strategies suggest in [Eclipse Attacks on Bitcoin’s Peer-to-Peer Network](https://www.usenix.org/system/files/conference/usenixsecurity15/sec15-paper-heilman.pdf). In our codebase, we use `ConnType::FEELER` to implement both.
It is confusing, up to the point that our documentation was just incorrect.
This PR:
- ~clarifies this aspect by renaming "ConnType::FEELER" to "ConnType::PROBE", meaning that this connections only probes that the node is operational, and then disconnects.~
- fixes the documentation
ACKs for top commit:
amitiuttarwar:
ACK 2ea62cae48. thank you!
practicalswift:
ACK 2ea62cae483b764e30f61c06d8ac65755bbd864c
Tree-SHA512: c9c03c09eefeacec28ea199cc3f697b0a98723f2f849f7a8115edc43791f8165e296e0e25a82f0b5a4a781a7de38c8954b48bf74c714eba02cdc21f7460673e5
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extend logging
deb52711a17236d0fca302701b5af585341ab42a Remove header checks out of net_processing (Troy Giorshev)
52d4ae46ab822d0f54e246a6f2364415cda149bd Give V1TransportDeserializer CChainParams& member (Troy Giorshev)
5bceef6b12fa16d20287693be377dace3dfec3e5 Change CMessageHeader Constructor (Troy Giorshev)
1ca20c1af8f08f07c407c3183c37b467ddf0f413 Add doxygen comment for ReceiveMsgBytes (Troy Giorshev)
890b1d7c2b8312d41d048d2db124586c5dbc8a49 Move checksum check from net_processing to net (Troy Giorshev)
2716647ebf60cea05fc9edce6a18dcce4e7727ad Give V1TransportDeserializer an m_node_id member (Troy Giorshev)
Pull request description:
Inspired by #15206 and #15197, this PR moves all message header verification from the message processing layer and into the network/transport layer.
In the previous PRs there is a change in behavior, where we would disconnect from peers upon a single failed checksum check. In various discussions there was concern over whether this was the right choice, and some expressed a desire to see how this would look if it was made to be a pure refactor.
For more context, see https://bitcoincore.reviews/15206.html#l-81.
This PR improves the separation between the p2p layers, helping improvements like [BIP324](https://github.com/bitcoin/bitcoin/pull/18242) and #18989.
ACKs for top commit:
ryanofsky:
Code review ACK deb52711a17236d0fca302701b5af585341ab42a just rebase due to conflict on adjacent line
jnewbery:
Code review ACK deb52711a17236d0fca302701b5af585341ab42a.
Tree-SHA512: 1a3b7ae883b020cfee1bef968813e04df651ffdad9dd961a826bd80654f2c98676ce7f4721038a1b78d8790e4cebe8060419e3d8affc97ce2b9b4e4b72e6fa9f
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