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
obscuren
c2ef8682fe
eth/downloader: moved start event
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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
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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
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
obscuren
b71091e337
eth, eth/downloader, miner: use download events to check miner start
2015-05-15 00:43:10 +02:00
Jeffrey Wilcke
060a07cf69
Merge pull request #974 from karalabe/downloader-fix-unknown-parent-attack
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eth, eth/downloader: handle a potential unknown parent attack
2015-05-14 08:16:30 -07:00
Péter Szilágyi
fe87feccb1
eth/downloader: add a small additional check to the test
2015-05-14 15:44:54 +03:00
Péter Szilágyi
ebf1eb9359
eth/downloader: remove a previous leftover
2015-05-14 15:40:28 +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
Jeffrey Wilcke
2b06fe3eff
Merge pull request #950 from karalabe/downloader-cancel-sync
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eth/downloader: fix deliveries to check for sync cancels
2015-05-14 04:05:13 -07:00
Péter Szilágyi
910a6d4e46
eth/downloader: fix nil panic caused by wrong variable use
2015-05-13 17:25:01 +03:00
Péter Szilágyi
de3a71cafd
eth/downloader: remove a redundant sync progress check
2015-05-13 16:56:01 +03:00
Péter Szilágyi
48ee0777a5
eth/downloader: add a user sync notificaton
2015-05-13 16:03:05 +03:00
Péter Szilágyi
ec57aa64cd
eth/downloader: sync the cancel channel during cancel too
2015-05-13 14:01:08 +03:00
Péter Szilágyi
ee0c892303
eth/downloader: fix deliveries to check for sync cancels
2015-05-13 13:47:21 +03:00
Péter Szilágyi
d2d5dbc6fb
eth/downloader: fix active peer shadowing, polish func names
2015-05-13 13:13:43 +03:00
obscuren
48bd48876c
eth, eth/downloader: moved pending queue error message to debug
2015-05-11 17:27:34 +02:00
Péter Szilágyi
064cf16099
eth/downloader: use count instead of peers, clearer
2015-05-11 17:21:22 +02:00
Péter Szilágyi
d37a2559b9
eth/downloader: revert to demotion, use harsher penalty
2015-05-11 17:21:22 +02:00
Péter Szilágyi
70c65835f4
eth/downloader: fix #910 , thread safe peers & polishes
2015-05-11 17:21:22 +02:00
obscuren
05715f27cf
eth: added a cancel method for the downloader
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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
edad47bf0e
eth/downloader: fix leftover state between syncs
2015-05-08 17:39:03 +03:00
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
45f8304f3c
eth/downloader: fix expiration not running while fetching
2015-05-07 12:59:19 +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
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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
f2a2b2ac70
eth/downloader: put back hashes on block overflow error
2015-05-03 14:11:00 +02:00
obscuren
493181ea09
eth/downloader: changed has to blockHashes for chain linking
2015-05-03 14:10:31 +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
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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
8595198c1b
eth/downloader: delete blocks from queue
2015-04-30 17:51:47 +02:00
obscuren
9b6e8f6195
eth, eth/downloader: remove bad peers from peer set
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Peers in the eth protocol handler are now being ignored for catch up.
2015-04-30 12:38:16 +02:00
obscuren
f8c27d7159
eth/downloader: drop block
2015-04-29 19:55:04 +02:00
obscuren
c930045834
core: fixed tetst to reflect (int, error) return by insertChain
2015-04-29 15:27:04 +02:00
obscuren
dfbf580354
eth/downloader: ignore orphan blocks in the downloader.
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When blocks have been sorted and are being processed, orphan blocks
should be ignored and thrown out. The protocol handler is responsible
for downloading blocks which have missing parents.
2015-04-29 14:49:37 +02:00
obscuren
735b029db9
core: return the index of the block that failed when inserting a chain
2015-04-29 14:00:24 +02:00
