abdfcda4dd
eth/downloader: short circuit sync if head hash is banned
2015-06-08 13:23:58 +03:00
84bc93d8cb
eth/downloader: accumulating hash bans for reconnecting attackers
2015-06-08 13:23:58 +03:00
eedb25b22a
eth/downloader: clean up tests and unused variables
2015-06-08 13:23:57 +03:00
b94a76d17e
Merge pull request #1189 from karalabe/downloader-polishes
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eth/downloader: handle timeouts more gracefully
2015-06-05 08:31:57 -07:00
94e525ae12
eth, eth/downloader: fix #1098 , elevate empty hash errors to peer drops
2015-06-05 12:52:48 +03:00
328ef60b85
eth/downloader: differentiate stale and nonexistent deliveries
2015-06-05 12:37:48 +03:00
94e4aa6ea9
eth/downloader: log hard timeouts and reset capacity
2015-06-05 11:53:46 +03:00
d754c25cc8
eth/downloader: drop log entry from peer, it's covered already
2015-06-04 16:22:55 +03:00
24cca2f18d
eth/downloader: log after state updates, easier to debug
2015-06-04 15:10:43 +03:00
28c32d1b1b
eth/downloader: fix #1178 , don't request blocks beyond the cache bounds
2015-06-04 14:51:14 +03:00
3ec159ab6b
eth/downloader: demote peers if they exceed the soft limits at 1 blocks already
2015-06-03 15:43:12 +03:00
c9a546c310
eth/downloader: add a basic block download congestion control
2015-06-03 14:40:11 +03:00
29b0480cfb
core, eth/downloader: expose the bad hashes, check in downloader
2015-05-28 14:03:10 +03:00
3083ec5e32
eth/downloader: silence "Added N blocks from..." if N == 0
2015-05-26 16:10:28 +03:00
eafdc1f8e3
eth, eth/downloader: surface downloaded block origin, drop on error
2015-05-26 14:00:21 +03:00
af28736bd0
Merge pull request #1064 from karalabe/downloader-attacks
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Fix two additional download vulnerabilities
2015-05-21 09:00:12 -07:00
06a041589f
eth, eth/downloader: remove duplicate consts, bump hash fetch to 2K
2015-05-21 18:16:04 +03:00
52db6d8be5
eth/downloader: circumvent a forged block chain with known parent attack
2015-05-21 08:37:27 +03:00
e8b22b9253
eth/downloader: prevent a peer from dripping bad hashes
2015-05-21 08:07:58 +03:00
6f54eb6d9a
eth/downloader: fix test to it doesn't time out on a slow machine
2015-05-20 10:15:42 +03:00
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
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
412cf98bbc
eth/downloader: fix #992 , where tests may time out on a slow machine
2015-05-15 21:16:42 +03:00
f3ae8f50a5
eth/downloader: circumvent download race between crosscheck and hashes
2015-05-15 20:54:10 +03:00
4f0d88cb02
eth/downloader: fix cancel channel double close
2015-05-15 19:43:42 +03:00
5c1a7b965c
eth/downloader: circumvent a fake blockchain attack
2015-05-15 15:04:15 +03:00
b517967f86
eth/downloader: don't penalize for stale cross checks
2015-05-15 15:03:08 +03:00
83226762c2
eth, eth/downloader: detect and handle madeup hash attacks
2015-05-15 15:01:58 +03:00
72411eb24c
eth/downloader: circumvent hash reordering attacks
2015-05-15 15:01:58 +03:00
bcc2980179
eth/downloader: check sync after failed attacks
2015-05-15 15:01:58 +03:00
366e9627e8
eth/downloader: add a test for detecting missing blocks
2015-05-15 15:01:58 +03:00
cd2fb09051
eth, eth/downloader: prevent hash repeater attack
2015-05-15 15:01:58 +03:00
cfb2b51b74
eth/downloader: fixed test
2015-05-15 12:47:32 +02:00
b71091e337
eth, eth/downloader, miner: use download events to check miner start
2015-05-15 00:43:10 +02:00
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
fe87feccb1
eth/downloader: add a small additional check to the test
2015-05-14 15:44:54 +03:00
ebf1eb9359
eth/downloader: remove a previous leftover
2015-05-14 15:40:28 +03:00
3eda70c64c
eth, eth/downloader: remove parent verification from the downlaoder
2015-05-14 15:38:49 +03:00
a4246c2da6
eth, eth/downloader: handle a potential unknown parent attack
2015-05-14 15:24:18 +03:00
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
910a6d4e46
eth/downloader: fix nil panic caused by wrong variable use
2015-05-13 17:25:01 +03:00
de3a71cafd
eth/downloader: remove a redundant sync progress check
2015-05-13 16:56:01 +03:00
48ee0777a5
eth/downloader: add a user sync notificaton
2015-05-13 16:03:05 +03:00
ec57aa64cd
eth/downloader: sync the cancel channel during cancel too
2015-05-13 14:01:08 +03:00
ee0c892303
eth/downloader: fix deliveries to check for sync cancels
2015-05-13 13:47:21 +03:00
d2d5dbc6fb
eth/downloader: fix active peer shadowing, polish func names
2015-05-13 13:13:43 +03:00
48bd48876c
eth, eth/downloader: moved pending queue error message to debug
2015-05-11 17:27:34 +02:00
064cf16099
eth/downloader: use count instead of peers, clearer
2015-05-11 17:21:22 +02:00
d37a2559b9
eth/downloader: revert to demotion, use harsher penalty
2015-05-11 17:21:22 +02:00
70c65835f4
eth/downloader: fix #910 , thread safe peers & polishes
2015-05-11 17:21:22 +02:00
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
edad47bf0e
eth/downloader: fix leftover state between syncs
2015-05-08 17:39:03 +03:00
bd5720f480
eth, eth/downloader: handle sync errors a bit more gracefully
2015-05-08 15:22:48 +03:00
9d188f73b5
eth, eth/downloader: make synchronize thread safe
2015-05-07 21:07:20 +03:00
43901c9282
eth/downloader: fix priority queue reset, add throttling test
2015-05-07 14:40:50 +03:00
45f8304f3c
eth/downloader: fix expiration not running while fetching
2015-05-07 12:59:19 +03:00
4800c94392
eth/downloader: prioritize block fetch based on chain position, cap memory use
2015-05-07 10:57:34 +03:00
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
f2a2b2ac70
eth/downloader: put back hashes on block overflow error
2015-05-03 14:11:00 +02:00
493181ea09
eth/downloader: changed has to blockHashes for chain linking
2015-05-03 14:10:31 +02:00
25bc88113f
eth/downloader: added additional tests
2015-05-03 14:09:33 +02:00
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
8595198c1b
eth/downloader: delete blocks from queue
2015-04-30 17:51:47 +02:00
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
f8c27d7159
eth/downloader: drop block
2015-04-29 19:55:04 +02:00
c930045834
core: fixed tetst to reflect (int, error) return by insertChain
2015-04-29 15:27:04 +02:00
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
735b029db9
core: return the index of the block that failed when inserting a chain
2015-04-29 14:00:24 +02:00
13364a2dcf
eth/downloader: reset the chain when parent is missing during processing
2015-04-29 13:40:39 +02:00
4b7bdc3766
eth: check if downloader is busy before showing log message
2015-04-29 12:51:05 +02:00
7ce3d06402
eth/downloader: removed update loop and synch channel
2015-04-24 18:28:46 +02:00
a9e4b96573
eth/downloader: fixed tests
2015-04-24 15:56:18 +02:00
d84c2202e7
eth, eth/downloader: simplified synchronisation process
2015-04-24 15:38:10 +02:00
bd9c76097d
eth/downloader: removed peer td management and best peer selection
2015-04-24 15:37:07 +02:00
31f82eb334
eth, eth/downloader: don't require td on downloader. Fixed tests
2015-04-24 15:04:58 +02:00
b86e7526e1
eth, eth/downloader: moved peer selection to protocol handler
2015-04-24 14:40:32 +02:00
45da3e17e2
core: added chain head reset to known block
2015-04-20 12:29:02 +02:00
5dd56bb474
geth: admin download status
2015-04-19 21:46:19 +02:00
ed07ffcde5
downloader: fixed tests with low ttl
2015-04-19 17:37:01 +02:00
dcf1a1988a
moved
2015-04-19 17:14:15 +02:00
cce4158cfc
Removed debug println
2015-04-19 13:33:14 +02:00
c58918c84a
downloader: moved chunk ignoring. Fixes issue with catching up
2015-04-19 13:30:34 +02:00
5c59d95532
downloader: defer peer reset after download
2015-04-19 01:39:37 +02:00
86ecdcd5ff
downloader: reset hashTtl on receive
2015-04-19 00:15:05 +02:00
50e096e627
downloader: don't remove peers. keep them around
2015-04-18 23:56:08 +02:00
a1d97ea4db
typo
2015-04-18 20:35:49 +02:00
6830ddb659
downloader: free up peers from work when the downloader resets
2015-04-18 20:25:55 +02:00
7c5d50f627
downloader: throw an error if there are no peers available for download
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If all peers have been tried during the block download process and some
hashes are unfetchable (available peers > 0 and fetching == 0) throw an
error so the process can be aborted.
2015-04-18 19:30:29 +02:00
78e37e98e7
downloader: fixed a race condition for download status
2015-04-18 19:14:25 +02:00
0d536734fe
eth: adapted to new synchronous api of downloader's AddBlock
2015-04-18 18:57:59 +02:00
c2c24b3bb4
downloader: improved downloading and synchronisation
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* Downloader's peers keeps track of peer's previously requested hashes
so that we don't have to re-request
* Changed `AddBlock` to be fully synchronous
2015-04-18 18:55:13 +02:00
60613b57d1
downloader: make sure that hashes are only accepted from the active peer
2015-04-18 17:35:03 +02:00
8244825bbf
downloader: reset the queue if a peer response with an empty hash set
2015-04-18 15:14:12 +02:00
8f873b762b
downloader: all handlers check for isBusy
2015-04-18 03:15:26 +02:00
2339ee9910
Merge branch 'develop' into downloader-proto
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Conflicts:
eth/downloader/downloader.go
2015-04-18 01:10:32 +02:00
eac2df02d1
downloader: fixed a typo
2015-04-17 00:11:45 +02:00
205378016f
downloader: added demotion / promotion in prep. for rep. system
2015-04-16 02:16:33 +02:00
eda10c7317
downloader: updated downloader and fixed issues with catch up
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Properly ignore blocks coming from peers not in our peer list (blocked)
and do never request anything from bad peers. Added some checks to
account for blocks known when requesting hashes (missing parents).
2015-04-16 01:29:32 +02:00
c4678ffd77
downloader: updated downloader and fixed issues with catch up
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Properly ignore blocks coming from peers not in our peer list (blocked)
and do never request anything from bad peers. Added some checks to
account for blocks known when requesting hashes (missing parents).
2015-04-16 00:14:31 +02:00
a8a2b2a488
downloader: added missing blocks catchup functionality
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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
7dcb9825c3
downloader: return an error for peer.fetch and return chunk to queue
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If a peer was somehow already fetching and somehow managed to end up in
the `available` pool it should return it's work.
2015-04-12 13:36:01 +02:00
6efa8db888
downloader: renamed chunks to queue
2015-04-12 13:24:38 +02:00
acf8452c33
downloader: implemented new downloader
2015-04-12 12:38:25 +02:00
Péter Szilágyi
Jeffrey Wilcke
obscuren