Commit Graph

12 Commits

Author SHA1 Message Date
Felix Lange bc6569462d
p2p: use netip.Addr where possible (#29891)
enode.Node was recently changed to store a cache of endpoint information. The IP address in the cache is a netip.Addr. I chose that type over net.IP because it is just better. netip.Addr is meant to be used as a value type. Copying it does not allocate, it can be compared with ==, and can be used as a map key.

This PR changes most uses of Node.IP() into Node.IPAddr(), which returns the cached value directly without allocating.
While there are still some public APIs left where net.IP is used, I have converted all code used internally by p2p/discover to the new types. So this does change some public Go API, but hopefully not APIs any external code actually uses.

There weren't supposed to be any semantic differences resulting from this refactoring, however it does introduce one: In package p2p/netutil we treated the 0.0.0.0/8 network (addresses 0.x.y.z) as LAN, but netip.Addr.IsPrivate() doesn't. The treatment of this particular IP address range is controversial, with some software supporting it and others not. IANA lists it as special-purpose and invalid as a destination for a long time, so I don't know why I put it into the LAN list. It has now been marked as special in p2p/netutil as well.
2024-06-05 19:31:04 +02:00
hattizai 2f06c1e854
cmd/devp2p: fix node.TCP -> node.UDP (#29879) 2024-05-29 15:55:51 +02:00
Felix Lange 94a8b296e4
p2p/discover: refactor node and endpoint representation (#29844)
Here we clean up internal uses of type discover.node, converting most code to use
enode.Node instead. The discover.node type used to be the canonical representation of
network hosts before ENR was introduced. Most code worked with *node to avoid conversions
when interacting with Table methods. Since *node also contains internal state of Table and
is a mutable type, using *node outside of Table code is prone to data races. It's also
cleaner not having to wrap/unwrap *enode.Node all the time.

discover.node has been renamed to tableNode to clarify its purpose.

While here, we also change most uses of net.UDPAddr into netip.AddrPort. While this is
technically a separate refactoring from the *node -> *enode.Node change, it is more
convenient because *enode.Node handles IP addresses as netip.Addr. The switch to package
netip in discovery would've happened very soon anyway.

The change to netip.AddrPort stops at certain interface points. For example, since package
p2p/netutil has not been converted to use netip.Addr yet, we still have to convert to
net.IP/net.UDPAddr in a few places.
2024-05-29 15:02:26 +02:00
vuittont60 ae4ea047e3
cmd: fix typos (#28798) 2024-01-12 10:40:00 +02:00
Delweng e9c3183c52
cmd: use errrors.New instead of empty fmt.Errorf (#27329)
Signed-off-by: jsvisa <delweng@gmail.com>
2023-05-24 12:21:29 +02:00
strykerin c6a2f77c2e
cmd/devp2p/internal/v4test: add pong validation in bond (#26400) 2023-01-03 11:30:34 +01:00
Marcin Sobczak d629e02047
cmd/devp2p/internal/v4test: ignore FINDNODE in BondThenPingWithWrongFrom (#26085)
This fixes a race in the test.

Co-authored-by: Felix Lange <fjl@twurst.com>
2022-11-07 22:46:21 +01:00
Martin Holst Swende ee301c750b
all: fix docstrings 2022-10-04 09:18:02 +02:00
Martin Holst Swende ad7c90c198
cmd/devp2p/internal/v4test: fix false-positive hive test (#23966)
This PR fixes two problems in devp2p tests (and through them, hive).

- Make the output more detailed about what is returned (always print packet kind).
- Allow Ping response to unsolicited findnode.

Without this PR, nethermind fails a hive protocol test, and I misinterpreted the result (NethermindEth/nethermind#3617). Ergo, the output was not fool-proof.
2021-11-24 21:22:45 +01:00
Martin Holst Swende 4cd6a1458e
cmd/devp2p: fix ping/pong race in discv4 tests (#23306)
This PR modifies the post-PING-send expectations to both be laxer and stricter: it doesn't care what order the packets arrive, but also verifies that exactly one PING and one PONG is returned.
2021-08-03 11:21:39 +02:00
Martin Holst Swende b9d4412715
cmd/devp2p: fixes for eth and discv4 tests (#23155)
This PR fixes a false positive PONG 'to' endpoint mismatch seen in hive tests:

    got {IP:172.17.0.7 UDP:44025 TCP:44025}, want {IP:172.17.0.7 UDP:44025 TCP:0}

Co-authored-by: Felix Lange <fjl@twurst.com>
2021-07-07 17:28:14 +02:00
Adam Schmideg 6a48ae37b2
cmd/devp2p: add discv4 test suite (#21163)
This adds a test suite for discovery v4. The test suite is a port of the Hive suite for
discovery, and will replace the current suite on Hive soon-ish. The tests can be
run locally with this command:

    devp2p discv4 test -remote enode//...

Co-authored-by: Felix Lange <fjl@twurst.com>
2020-07-07 14:37:33 +02:00