Commit Graph

258 Commits

Author SHA1 Message Date
Jeffrey Wilcke 483feb0d3f Merge pull request #2242 from jimenezrick/upstream-crypto
Closes #2241: Use Keccak-256 from golang.org/x/crypto/sha3 and mention explicitly
2016-02-24 12:57:57 +01:00
Péter Szilágyi ac954f48bd p2p/discover: emphasize warning, add 10 min cooldown 2016-02-24 12:16:28 +02:00
Péter Szilágyi b1908f6a16 psp/discovery: NTP sanity check clock drift in case of expirations 2016-02-24 12:14:15 +02:00
Ricardo Catalinas Jiménez 436fc8d76a all: Rename crypto.Sha3{,Hash}() to crypto.Keccak256{,Hash}()
As we aren't really using the standarized SHA-3
2016-02-21 22:34:34 +00:00
Felix Lange 7d8155714b p2p: EIP-8 changes 2016-02-19 11:14:48 +01:00
Felix Lange ee1debda53 p2p/discover: EIP-8 changes 2016-02-19 11:14:42 +01:00
Felix Lange 2871781f64 p2p/discover: fix Windows-specific issue for larger-than-buffer packets
On Windows, UDPConn.ReadFrom returns an error for packets larger
than the receive buffer. The error is not marked temporary, causing
our loop to exit when the first oversized packet arrived. The fix
is to treat this particular error as temporary.

Fixes: #1579, #2087
Updates: #2082
2016-01-22 23:44:25 +01:00
Felix Lange b3f1f4c673 p2p/discover: attempt to deflake TestUDP_responseTimeouts
The test expected the timeout to fire after a matcher for the response
was added, but the timeout is random and fired sooner sometimes.
2015-12-17 23:44:56 +01:00
Felix Lange 6c41e675ec p2p: resolve incomplete dial targets
This change makes it possible to add peers without providing their IP
address. The endpoint of the target node is resolved using the discovery
protocol.
2015-12-17 23:39:49 +01:00
Felix Lange 04c6369a09 p2p, p2p/discover: track bootstrap state in p2p/discover
This change simplifies the dial scheduling logic because it
no longer needs to track whether the discovery table has been
bootstrapped.
2015-12-17 23:38:54 +01:00
Felix Lange d1f507b7f1 p2p/discover: support incomplete node URLs, add Resolve 2015-12-17 23:38:54 +01:00
Péter Szilágyi abb53644c6 p2p: always allow dynamic dials if network not disabled 2015-12-03 11:45:35 +02:00
Gustav Simonsson c8ad64f33c crypto, crypto/ecies, crypto/secp256k1: libsecp256k1 scalar mult
thanks to Felix Lange (fjl) for help with design & impl
2015-11-30 13:43:32 +01:00
Péter Szilágyi 9e1d9bff3b node: customizable protocol and service stacks 2015-11-27 11:06:12 +02:00
Jeffrey Wilcke e165c2d23c Merge pull request #1934 from karalabe/polish-protocol-infos
eth, p2p, rpc/api: polish protocol info gathering
2015-11-04 11:59:31 +01:00
Felix Lange f570b68ed1 p2p/nat: add docs for discover 2015-10-29 22:54:44 +01:00
Felix Lange bf11a47f22 Godeps: upgrade github.com/huin/goupnp to 90f71cb5 2015-10-29 22:53:59 +01:00
Péter Szilágyi e46ab3bdcd eth, p2p, rpc/api: polish protocol info gathering 2015-10-28 12:44:15 +02:00
Felix Lange 32dda97602 p2p/discover: ignore packet version numbers
The strict matching can get in the way of protocol upgrades.
2015-09-30 16:23:03 +02:00
Felix Lange 631bf36102 p2p/discover: remove unused lastLookup field 2015-09-30 16:23:03 +02:00
Felix Lange b4374436f3 p2p/discover: fix race involving the seed node iterator
nodeDB.querySeeds was not safe for concurrent use but could be called
concurrenty on multiple goroutines in the following case:

- the table was empty
- a timed refresh started
- a lookup was started and initiated refresh

These conditions are unlikely to coincide during normal use, but are
much more likely to occur all at once when the user's machine just woke
from sleep. The root cause of the issue is that querySeeds reused the
same leveldb iterator until it was exhausted.

This commit moves the refresh scheduling logic into its own goroutine
(so only one refresh is ever active) and changes querySeeds to not use
a persistent iterator. The seed node selection is now more random and
ignores nodes that have not been contacted in the last 5 days.
2015-09-30 16:23:03 +02:00
Péter Szilágyi c51e153b5c eth, metrics, p2p: prepare metrics and net packets to eth/62 2015-08-21 10:30:57 +03:00
Jeffrey Wilcke e2d44814a5 Merge pull request #1694 from obscuren/hide-fdtrack
fdtrack: hide message
2015-08-19 13:50:54 -07:00
Jeffrey Wilcke 269c5c7107 Revert "fdtrack: temporary hack for tracking file descriptor usage"
This reverts commit 5c949d3b3b.
2015-08-19 21:46:01 +02:00
Felix Lange dd54fef898 p2p/discover: don't attempt to replace nodes that are being replaced
PR #1621 changed Table locking so the mutex is not held while a
contested node is being pinged. If multiple nodes ping the local node
during this time window, multiple ping packets will be sent to the
contested node. The changes in this commit prevent multiple packets by
tracking whether the node is being replaced.
2015-08-19 14:57:16 +02:00
Felix Lange edccc7ae34 p2p: continue listening after temporary errors 2015-08-19 14:39:04 +02:00
Felix Lange 7d5ff770e2 p2p/discover: continue reading after temporary errors
Might solve #1579
2015-08-19 14:38:55 +02:00
Felix Lange a89cfe92cc Merge pull request #1470 from ebuchman/encHandshake
p2p: validate recovered ephemeral pubkey
2015-08-13 11:59:27 +02:00
Felix Lange 0d10d5a0a5 p2p: fix value of DiscSubprotocolError
We had the wrong value (12) since forever.
2015-08-12 14:15:54 +02:00
Felix Lange 590c99a98f p2p/discover: fix UDP reply packet timeout handling
If the timeout fired (even just nanoseconds) before the deadline of the
next pending reply, the timer was not rescheduled. The timer would've
been rescheduled anyway once the next packet was sent, but there were
cases where no next packet could ever be sent due to the locking issue
fixed in the previous commit.

As timing-related bugs go, this issue had been present for a long time
and I could never reproduce it. The test added in this commit did
reproduce the issue on about one out of 15 runs.
2015-08-11 11:42:17 +02:00
Felix Lange 01ed3fa1a9 p2p/discover: unlock the table during ping replacement
Table.mutex was being held while waiting for a reply packet, which
effectively made many parts of the whole stack block on that packet,
including the net_peerCount RPC call.
2015-08-11 11:42:17 +02:00
Felix Lange 6ee908848c p2p/nat: disable UPnP test on windows 2015-08-06 17:18:59 +02:00
Felix Lange b23b4dbd79 p2p/discover: close Table during testing
Not closing the table used to be fine, but now the table has a database.
2015-08-06 12:27:59 +02:00
Felix Lange 5c949d3b3b fdtrack: temporary hack for tracking file descriptor usage
Package fdtrack logs statistics about open file descriptors.
This should help identify the source of #1549.
2015-08-04 03:10:27 +02:00
Felix Lange bfbcfbe4a9 all: fix license headers one more time
I forgot to update one instance of "go-ethereum" in commit 3f047be5a.
2015-07-23 18:35:11 +02:00
Felix Lange 3f047be5aa all: update license headers to distiguish GPL/LGPL
All code outside of cmd/ is licensed as LGPL. The headers
now reflect this by calling the whole work "the go-ethereum library".
2015-07-22 18:51:45 +02:00
Ethan Buchman 37efd08b42 p2p: validate recovered ephemeral pubkey against checksum in decodeAuthMsg 2015-07-14 03:06:44 +00:00
Felix Lange bdae4fd573 all: add some godoc synopsis comments 2015-07-07 14:12:45 +02:00
Felix Lange ea54283b30 all: update license information 2015-07-07 14:12:44 +02:00
Péter Szilágyi 01fe972113 cmd, core, eth, metrics, p2p: require enabling metrics 2015-06-30 00:51:46 +02:00
Péter Szilágyi 216fc267fa p2p: fix local/remote cap/protocol mixup 2015-06-26 20:45:13 +03:00
Péter Szilágyi d84638bd31 p2p: support protocol version negotiation 2015-06-26 15:48:50 +03:00
Péter Szilágyi 6994a3daaa p2p: instrument P2P networking layer 2015-06-24 18:33:33 +03:00
Felix Lange 6fb810adaa p2p: throttle all discovery lookups
Lookup calls would spin out of control when network connectivity was
lost. The throttling that was in place only took effect when the table
returned zero results, which doesn't happen very often.

The new throttling should not have a negative impact when the host is
online. Lookups against the network take some time and dials for all
results must complete or hit the cache before a new one is started. This
usually takes longer than four seconds, leaving online lookups
unaffected.

Fixes #1296
2015-06-22 01:07:58 +02:00
Felix Lange 70da79f04c p2p: improve disconnect logging 2015-06-15 15:03:46 +02:00
Felix Lange 8dcbdcad0a p2p: track write errors and prevent writes during shutdown
As of this commit, we no longer rely on the protocol handler to report
write errors in a timely fashion. When a write fails, shutdown is
initiated immediately and no new writes can start. This will also
prevent new writes from starting after Server.Stop has been called.
2015-06-15 15:03:46 +02:00
Felix Lange a8e4cb6dfe p2p/discover: use separate rand.Source instances in tests
rand.Source isn't safe for concurrent use.
2015-06-10 15:18:01 +02:00
Felix Lange 261a8077c4 p2p/discover: deflake TestUDP_successfulPing 2015-06-10 13:08:21 +02:00
Péter Szilágyi 1cbbfbe7fa p2p: fix a close race in the dial test 2015-06-09 22:26:26 +03:00
Felix Lange 3239aca69b p2p: bump global write timeout to 20s
The previous value of 5 seconds causes timeouts for legitimate messages
if large messages are sent.
2015-06-09 17:07:10 +02:00