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
Felix Lange
dd09af27af
eth/downloader: run tests in parallel
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
5b0ee8ec30
core, eth, trie: fix data races and merge/review issues
2015-10-21 16:49:55 +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
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
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
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
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
2a1b722d04
eth/fetcher: fix timer reset bug, add initial tests
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
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
4ed3509a02
eth/downloader: test registration rejection on head ban
2015-06-08 15:02:52 +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
b40c796ff7
eth/downloader: preallocate the block cache
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
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
Péter Szilágyi
c9a546c310
eth/downloader: add a basic block download congestion control
2015-06-03 14:40:11 +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
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
5c1a7b965c
eth/downloader: circumvent a fake blockchain attack
2015-05-15 15:04:15 +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
Péter Szilágyi
bcc2980179
eth/downloader: check sync after failed attacks
2015-05-15 15:01:58 +03:00
Péter Szilágyi
366e9627e8
eth/downloader: add a test for detecting missing blocks
2015-05-15 15:01:58 +03:00
Péter Szilágyi
cd2fb09051
eth, eth/downloader: prevent hash repeater attack
2015-05-15 15:01:58 +03:00
obscuren
cfb2b51b74
eth/downloader: fixed test
2015-05-15 12:47:32 +02:00
Péter Szilágyi
fe87feccb1
eth/downloader: add a small additional check to the test
2015-05-14 15:44:54 +03:00
Péter Szilágyi
3eda70c64c
eth, eth/downloader: remove parent verification from the downlaoder
2015-05-14 15:38:49 +03:00
Péter Szilágyi
a4246c2da6
eth, eth/downloader: handle a potential unknown parent attack
2015-05-14 15:24:18 +03:00
Péter Szilágyi
d2d5dbc6fb
eth/downloader: fix active peer shadowing, polish func names
2015-05-13 13:13:43 +03:00
Péter Szilágyi
685862d2ce
eth/downloader: fix #910 , thread safe peers & polishes
2015-05-11 14:26:20 +03:00
obscuren
05715f27cf
eth: added a cancel method for the downloader
...
Added a cancel method to the downloader which gracefully shuts down any
active syncing process (hash fetching or block downloading) and resets
the queue and remove any pending blocks.
Issue with the downloader which would stall because of an active ongoing
process when an invalid block was found.
2015-05-10 00:34:07 +02:00
Péter Szilágyi
bd5720f480
eth, eth/downloader: handle sync errors a bit more gracefully
2015-05-08 15:22:48 +03:00
Péter Szilágyi
9d188f73b5
eth, eth/downloader: make synchronize thread safe
2015-05-07 21:07:20 +03:00
Péter Szilágyi
43901c9282
eth/downloader: fix priority queue reset, add throttling test
2015-05-07 14:40:50 +03:00
Péter Szilágyi
4800c94392
eth/downloader: prioritize block fetch based on chain position, cap memory use
2015-05-07 10:57:34 +03:00
obscuren
1470b22e90
downloader: hash downloading recovery
...
If a peer fails to respond (disconnect, etc) during hash downloading
switch to a different peer which has it's current_hash in the queue's
peer set.
2015-05-03 16:27:03 +02:00
obscuren
25bc88113f
eth/downloader: added additional tests
2015-05-03 14:09:33 +02:00
obscuren
016f152b36
eth, eth/downloader: Moved block processing & graceful shutdown
...
The downloader is no longer responsible for processing blocks. The
eth-protocol handler now takes care of this instead.
Added graceful shutdown during block processing. Closes #846
2015-05-01 15:58:44 +02:00
obscuren
c930045834
core: fixed tetst to reflect (int, error) return by insertChain
2015-04-29 15:27:04 +02:00
obscuren
a9e4b96573
eth/downloader: fixed tests
2015-04-24 15:56:18 +02:00
obscuren
31f82eb334
eth, eth/downloader: don't require td on downloader. Fixed tests
2015-04-24 15:04:58 +02:00
obscuren
ed07ffcde5
downloader: fixed tests with low ttl
2015-04-19 17:37:01 +02:00
obscuren
c58918c84a
downloader: moved chunk ignoring. Fixes issue with catching up
2015-04-19 13:30:34 +02:00
obscuren
a8a2b2a488
downloader: added missing blocks catchup functionality
...
When a parent is missing in the block list an attempt should be made to
fetch the missing parent and grandparents.
2015-04-13 16:38:32 +02:00
obscuren
acf8452c33
downloader: implemented new downloader
2015-04-12 12:38:25 +02:00
