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224 Commits

Author SHA1 Message Date
Péter Szilágyi 9e011ff1cd core, eth/downloader: ensure state presence in ancestor lookup 2016-01-04 16:27:23 +02:00
Péter Szilágyi 1f39746886 eth/downloader: throttling tests are time-sensitive, don't run parallel 2015-12-30 14:42:21 +02:00
Felix Lange 9be5d5cd90 eth/downloader: fix negative balance issue in tests 
The test chain generated by makeChainFork included invalid uncle
headers, crashing the generator during the state commit.

The headers were invalid because they used the iteration counter as the
block number, even though makeChainFork uses a block with number > 0 as
the parent. Fix this by introducing BlockGen.Number, which allows
accessing the actual number of the block being generated.
 2015-12-18 12:09:10 +01:00
Bas van Kervel eae81465c1 rpc: new RPC implementation with pub/sub support 2015-12-14 16:34:05 +01:00
Péter Szilágyi b6f5523bdc eth/downloader: fetch data proportionally to peer capacity 2015-11-19 17:01:39 +02:00
Felix Lange dd09af27af eth/downloader: run tests in parallel 2015-11-19 14:18:35 +01:00
Felix Lange b7b62d4b3c eth/downloader: also drain stateCh, receiptCh in eth/61 mode 
State and receipt deliveries from a previous eth/62+ sync can hang if
the downloader has moved on to syncing with eth/61. Fix this by also
draining the eth/63 channels while waiting for eth/61 data.

A nicer solution would be to take care of the channels in a central
place, but that would involve a major rewrite.
 2015-11-19 14:18:35 +01:00
Felix Lange 900da3d800 eth/downloader: don't hang for spurious deliveries 
Unexpected deliveries could block indefinitely if they arrived at the
right time. The fix is to ensure that the cancellation channel is
always closed when the sync ends, unblocking any deliveries. Also remove
the atomic check for whether a sync is currently running because it
doesn't help and can be misleading.

Cancelling always seems to break the tests though. The downloader
spawned d.process whenever new data arrived, making it somewhat hard to
track when block processing was actually done. Fix this by running
d.process in a dedicated goroutine that is tied to the lifecycle of the
sync. d.process gets notified of new work by the queue instead of being
invoked all the time. This removes a ton of weird workaround code,
including a hairy use of atomic CAS.
 2015-11-19 14:18:34 +01:00
Péter Szilágyi b658a73ed5 eth/downloader: fix dysfunctional ignore list hidden by generic set 2015-11-04 13:11:52 +02:00
Péter Szilágyi 2019ed71b4 eth: don't block sync goroutines that short circuit 2015-10-28 16:41:01 +02:00
Péter Szilágyi 5b0ee8ec30 core, eth, trie: fix data races and merge/review issues 2015-10-21 16:49:55 +03:00
Péter Szilágyi aa0538db0b eth: clean out light node notions from eth 2015-10-19 10:03:10 +03:00
Péter Szilágyi a9d8dfc8e7 core, eth: roll back uncertain headers in failed fast syncs 2015-10-19 10:03:10 +03:00
Péter Szilágyi b97e34a8e4 eth/downloader: concurrent receipt and state processing 2015-10-19 10:03:10 +03:00
Péter Szilágyi ab27bee25a core, eth, trie: direct state trie synchronization 2015-10-19 10:03:09 +03:00
Péter Szilágyi 832b37c822 core, eth: receipt chain reconstruction 2015-10-19 10:03:09 +03:00
Péter Szilágyi f186b39018 eth/downloader: add fast and light sync strategies 2015-10-19 10:03:09 +03:00
Péter Szilágyi 47f62a67aa eth/downloader: match capabilities when querying idle peers 2015-10-02 13:20:41 +03:00
Péter Szilágyi f459a3f0ae eth/downloader: always send termination wakes, clean leftover 2015-09-23 12:39:17 +03:00
Péter Szilágyi 99b62f36b6 eth/downloader: header-chain order and ancestry check 2015-09-15 14:45:53 +03:00
Péter Szilágyi 0a7d059b6a eth, rpc: standardize the chain sync progress counters 2015-09-15 14:45:53 +03:00
Péter Szilágyi cdc2662c40 core: split out TD from database and all internals 2015-09-11 17:42:25 +03:00
Péter Szilágyi 1f1d73ab74 eth/downloader: fix race causing occasional test failure 2015-09-01 16:11:14 +03:00
Péter Szilágyi 17f65cd1e5 eth: update metrics collection to handle eth/62 algos 2015-08-25 17:48:47 +03:00
Péter Szilágyi 47a7fe5d22 eth: port the synchronisation algo to eth/62 2015-08-25 17:48:47 +03:00
Péter Szilágyi ca88e18f59 eth: kill off protocol eth/60 in preparation for eth/62 2015-08-24 17:57:28 +03:00
Péter Szilágyi 42f44dda54 eth, eth/downloader: handle header requests, table driven proto tests 2015-08-24 17:57:28 +03:00
Péter Szilágyi c51e153b5c eth, metrics, p2p: prepare metrics and net packets to eth/62 2015-08-21 10:30:57 +03:00
Péter Szilágyi 6adbaabc65 eth, eth/downloader: don't report stall if fetcher filled the block 2015-07-29 15:39:08 +03:00
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
Péter Szilágyi 492d5454b1 eth/downloader: drop peer if advertised TD but won't delvier 2015-07-09 14:40:18 +03:00
Felix Lange ea54283b30 all: update license information 2015-07-07 14:12:44 +02:00
Péter Szilágyi f857fb7600 eth/downloader: fix a rare test race on the OSX CI 2015-07-03 13:01:22 +03:00
Péter Szilágyi d6f2c0a76f eth, eth/downloader: fix #1231, DOS vulnerability in hash queueing 2015-07-01 15:21:35 +03:00
Péter Szilágyi 60454da650 eth/downloader: reduce hash fetches in prep for eth/61 2015-07-01 01:20:49 +03:00
Péter Szilágyi f43c07cb3c eth, eth/downloader: transition to eth 61 2015-06-30 19:05:06 +03:00
Péter Szilágyi af51dc4d63 eth, eth/downloader: pass the eth protocol version through 2015-06-30 19:00:01 +03:00
Felix Lange e0e5f74776 eth/downloader, eth/fetcher: use core.GenerateChain in tests 
TestMadeupParentBlockChainAttack has been deleted because it was too
hard to port and the attack that it checks the prevention of is being
averted in a different way (through a protocol change).
 2015-06-29 18:51:47 +02:00
Felix Lange 1d42888d30 core/types: make blocks immutable 2015-06-29 18:51:47 +02:00
Péter Szilágyi 5ec6ecc511 eth, eth/fetcher: move propagated block import into fetcher 2015-06-18 15:56:08 +03:00
Péter Szilágyi 2a1b722d04 eth/fetcher: fix timer reset bug, add initial tests 2015-06-18 15:56:07 +03:00
Péter Szilágyi 7c2af1c117 eth, eth/fetcher: separate notification sync mechanism 2015-06-18 15:56:07 +03:00
Péter Szilágyi 4365668462 eth/downloader: extend slow test to fix even slower CI server... 2015-06-18 00:42:02 +03:00
Péter Szilágyi 55dd8fd621 eth/downloader: always reenter processing if not exiting 2015-06-18 00:26:54 +03:00
Péter Szilágyi 2f4cbe22f5 eth, eth/downloader: fix processing interrupt caused by temp cancel 2015-06-18 00:04:57 +03:00
Péter Szilágyi 4a1e82cf3f eth/downloader: fix #1280, overlapping (good/bad) delivery hang 2015-06-17 12:03:16 +03:00
Péter Szilágyi cf7c44a7f6 eth/downloader: detailed comment for the race corner case 2015-06-15 15:18:04 +03:00
Péter Szilágyi 9c03c374e3 eth/downloader: fix import statistic reset, fetch hashes async 2015-06-15 13:05:01 +03:00
Péter Szilágyi b240983e2b eth, eth/downloader: do async block fetches, add dl tests 2015-06-15 12:26:05 +03:00
Péter Szilágyi 30a9939388 eth/downloader: sanity test for multi peer syncs 2015-06-15 09:22:37 +03:00
Péter Szilágyi fc7abd9886 eth, eth/downloader: move block processing into the downlaoder 2015-06-15 09:22:37 +03:00
Péter Szilágyi 0fc71877a7 eth/downloader: add valid peer during attacks (check interference) 2015-06-15 09:22:37 +03:00
Péter Szilágyi 80833f8137 eth/downloader: instreument and test the sync peer drop 2015-06-15 09:22:37 +03:00
Péter Szilágyi 2dd6a62f67 eth/downloader: support individual peers in the test suite 2015-06-15 09:22:36 +03:00
Péter Szilágyi 2937903299 eth/downloader: remove uneeded testing functions 2015-06-15 09:22:36 +03:00
Péter Szilágyi 66d3dc8690 eth, eth/downloader: move peer removal into downloader 2015-06-15 09:22:36 +03:00
Péter Szilágyi 3c1cccc801 eth/downloader: fetch the block hashes on the fly, when needed 2015-06-10 20:12:22 +03:00
Péter Szilágyi 271fb20ecb cmd/geth, eth/downloader: rough guess at the import eta 2015-06-10 18:01:05 +03:00
Péter Szilágyi b3d5ce7d48 cmd/geth, eth/downloader: collect and report import progress too 2015-06-10 01:20:35 +03:00
Felix Lange 8dc3048f65 eth/downloader: fix hash fetch timeout handling 
Fixes #1206
 2015-06-09 17:07:10 +02:00
Péter Szilágyi 4ed3509a02 eth/downloader: test registration rejection on head ban 2015-06-08 15:02:52 +03:00
Péter Szilágyi c4f224932f eth/downloader: reject peer registration if head is banned 2015-06-08 14:46:31 +03:00
Péter Szilágyi 63c6cedb14 eth/downloader: cap the hash ban set, add test for it 2015-06-08 14:12:00 +03:00
Péter Szilágyi 4b2dd44711 eth/downloader: fix throttling test to be less timing dependent 2015-06-08 13:23:58 +03:00
Péter Szilágyi 2d627995cf eth/downloader: fix another rebase error 2015-06-08 13:23:58 +03:00
Péter Szilágyi b40c796ff7 eth/downloader: preallocate the block cache 2015-06-08 13:23:58 +03:00
Péter Szilágyi 1d7bf3d39f eth/downloader: fix merge compile error 2015-06-08 13:23:58 +03:00
Péter Szilágyi 6d497f61c6 eth/downloader: don't block hash deliveries while pulling blocks 2015-06-08 13:23:58 +03:00
Péter Szilágyi 9da0232eef eth/downloader: update test for shitty travis 2015-06-08 13:23:58 +03:00
Péter Szilágyi 0275fcb3d3 eth/downloader: clean up and simplify the code a bit 2015-06-08 13:23:58 +03:00
Péter Szilágyi abdfcda4dd eth/downloader: short circuit sync if head hash is banned 2015-06-08 13:23:58 +03:00
Péter Szilágyi 84bc93d8cb eth/downloader: accumulating hash bans for reconnecting attackers 2015-06-08 13:23:58 +03:00
Péter Szilágyi eedb25b22a eth/downloader: clean up tests and unused variables 2015-06-08 13:23:57 +03:00
Jeffrey Wilcke b94a76d17e Merge pull request #1189 from karalabe/downloader-polishes 
eth/downloader: handle timeouts more gracefully
 2015-06-05 08:31:57 -07:00
Péter Szilágyi 94e525ae12 eth, eth/downloader: fix #1098, elevate empty hash errors to peer drops 2015-06-05 12:52:48 +03:00
Péter Szilágyi 328ef60b85 eth/downloader: differentiate stale and nonexistent deliveries 2015-06-05 12:37:48 +03:00
Péter Szilágyi 94e4aa6ea9 eth/downloader: log hard timeouts and reset capacity 2015-06-05 11:53:46 +03:00
Péter Szilágyi d754c25cc8 eth/downloader: drop log entry from peer, it's covered already 2015-06-04 16:22:55 +03:00
Péter Szilágyi 24cca2f18d eth/downloader: log after state updates, easier to debug 2015-06-04 15:10:43 +03:00
Péter Szilágyi 28c32d1b1b eth/downloader: fix #1178, don't request blocks beyond the cache bounds 2015-06-04 14:51:14 +03:00
Péter Szilágyi 3ec159ab6b eth/downloader: demote peers if they exceed the soft limits at 1 blocks already 2015-06-03 15:43:12 +03:00
Péter Szilágyi c9a546c310 eth/downloader: add a basic block download congestion control 2015-06-03 14:40:11 +03:00
Péter Szilágyi 29b0480cfb core, eth/downloader: expose the bad hashes, check in downloader 2015-05-28 14:03:10 +03:00
Péter Szilágyi 3083ec5e32 eth/downloader: silence "Added N blocks from..." if N == 0 2015-05-26 16:10:28 +03:00
Péter Szilágyi eafdc1f8e3 eth, eth/downloader: surface downloaded block origin, drop on error 2015-05-26 14:00:21 +03:00
Jeffrey Wilcke af28736bd0 Merge pull request #1064 from karalabe/downloader-attacks 
Fix two additional download vulnerabilities
 2015-05-21 09:00:12 -07:00
Péter Szilágyi 06a041589f eth, eth/downloader: remove duplicate consts, bump hash fetch to 2K 2015-05-21 18:16:04 +03:00
Péter Szilágyi 52db6d8be5 eth/downloader: circumvent a forged block chain with known parent attack 2015-05-21 08:37:27 +03:00
Péter Szilágyi e8b22b9253 eth/downloader: prevent a peer from dripping bad hashes 2015-05-21 08:07:58 +03:00
Péter Szilágyi 6f54eb6d9a eth/downloader: fix test to it doesn't time out on a slow machine 2015-05-20 10:15:42 +03:00
obscuren c2ef8682fe eth/downloader: moved start event 
Start event has moved because it could possibly could stall the miner
 2015-05-16 13:02:30 +02:00
Jeffrey Wilcke 82c0780f81 Merge pull request #996 from karalabe/fix-potential-crosscheck-race 
eth/downloader: circumvent download race between crosscheck and hashes
 2015-05-15 11:23:44 -07:00
Péter Szilágyi 412cf98bbc eth/downloader: fix #992, where tests may time out on a slow machine 2015-05-15 21:16:42 +03:00
Péter Szilágyi f3ae8f50a5 eth/downloader: circumvent download race between crosscheck and hashes 2015-05-15 20:54:10 +03:00
Péter Szilágyi 4f0d88cb02 eth/downloader: fix cancel channel double close 2015-05-15 19:43:42 +03:00
Péter Szilágyi 5c1a7b965c eth/downloader: circumvent a fake blockchain attack 2015-05-15 15:04:15 +03:00
Péter Szilágyi b517967f86 eth/downloader: don't penalize for stale cross checks 2015-05-15 15:03:08 +03:00
Péter Szilágyi 83226762c2 eth, eth/downloader: detect and handle madeup hash attacks 2015-05-15 15:01:58 +03:00
Péter Szilágyi 72411eb24c eth/downloader: circumvent hash reordering attacks 2015-05-15 15:01:58 +03:00