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228 Commits

Author SHA1 Message Date
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
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
Péter Szilágyi
5ec6ecc511 eth, eth/fetcher: move propagated block import into fetcher 2015-06-18 15:56:08 +03:00
Péter Szilágyi
7c2af1c117 eth, eth/fetcher: separate notification sync mechanism 2015-06-18 15:56:07 +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
fc7abd9886 eth, eth/downloader: move block processing into the downlaoder 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
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
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
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
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
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
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
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
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
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
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 
eth, eth/downloader: handle a potential unknown parent attack
 2015-05-14 08:16:30 -07:00
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 
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 
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
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 
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
493181ea09 eth/downloader: changed has to blockHashes for chain linking 2015-05-03 14:10:31 +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
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 
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
dfbf580354 eth/downloader: ignore orphan blocks in the downloader. 
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
obscuren
13364a2dcf eth/downloader: reset the chain when parent is missing during processing 2015-04-29 13:40:39 +02:00
obscuren
4b7bdc3766 eth: check if downloader is busy before showing log message 2015-04-29 12:51:05 +02:00
obscuren
7ce3d06402 eth/downloader: removed update loop and synch channel 2015-04-24 18:28:46 +02:00
obscuren
d84c2202e7 eth, eth/downloader: simplified synchronisation process 2015-04-24 15:38:10 +02:00
obscuren
31f82eb334 eth, eth/downloader: don't require td on downloader. Fixed tests 2015-04-24 15:04:58 +02:00
obscuren
b86e7526e1 eth, eth/downloader: moved peer selection to protocol handler 2015-04-24 14:40:32 +02:00
obscuren
45da3e17e2 core: added chain head reset to known block 2015-04-20 12:29:02 +02:00
obscuren
5dd56bb474 geth: admin download status 2015-04-19 21:46:19 +02:00
obscuren
ed07ffcde5 downloader: fixed tests with low ttl 2015-04-19 17:37:01 +02:00
obscuren
dcf1a1988a moved 2015-04-19 17:14:15 +02:00
obscuren
cce4158cfc Removed debug println 2015-04-19 13:33:14 +02:00
obscuren
c58918c84a downloader: moved chunk ignoring. Fixes issue with catching up 2015-04-19 13:30:34 +02:00
obscuren
5c59d95532 downloader: defer peer reset after download 2015-04-19 01:39:37 +02:00
obscuren
86ecdcd5ff downloader: reset hashTtl on receive 2015-04-19 00:15:05 +02:00
obscuren
50e096e627 downloader: don't remove peers. keep them around 2015-04-18 23:56:08 +02:00
obscuren
6830ddb659 downloader: free up peers from work when the downloader resets 2015-04-18 20:25:55 +02:00
obscuren
7c5d50f627 downloader: throw an error if there are no peers available for download 
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
obscuren
78e37e98e7 downloader: fixed a race condition for download status 2015-04-18 19:14:25 +02:00
obscuren
0d536734fe eth: adapted to new synchronous api of downloader's AddBlock 2015-04-18 18:57:59 +02:00
obscuren
c2c24b3bb4 downloader: improved downloading and synchronisation 
* 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
obscuren
60613b57d1 downloader: make sure that hashes are only accepted from the active peer 2015-04-18 17:35:03 +02:00
obscuren
8244825bbf downloader: reset the queue if a peer response with an empty hash set 2015-04-18 15:14:12 +02:00
obscuren
8f873b762b downloader: all handlers check for isBusy 2015-04-18 03:15:26 +02:00
obscuren
2339ee9910 Merge branch 'develop' into downloader-proto 
Conflicts:
	eth/downloader/downloader.go
 2015-04-18 01:10:32 +02:00
obscuren
eac2df02d1 downloader: fixed a typo 2015-04-17 00:11:45 +02:00
obscuren
205378016f downloader: added demotion / promotion in prep. for rep. system 2015-04-16 02:16:33 +02:00
obscuren
eda10c7317 downloader: updated downloader and fixed issues with catch up 
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
obscuren
c4678ffd77 downloader: updated downloader and fixed issues with catch up 
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
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
7dcb9825c3 downloader: return an error for peer.fetch and return chunk to queue 
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
obscuren
acf8452c33 downloader: implemented new downloader 2015-04-12 12:38:25 +02:00