29 Commits (1415669ac31cf8f06d107e06681b95c2b5e1c040)

Author	SHA1	Message	Date
Felix Lange	ee1debda53	p2p/discover: EIP-8 changes	9 years ago
Felix Lange	2871781f64	p2p/discover: fix Windows-specific issue for larger-than-buffer packets ... On Windows, UDPConn.ReadFrom returns an error for packets larger than the receive buffer. The error is not marked temporary, causing our loop to exit when the first oversized packet arrived. The fix is to treat this particular error as temporary. Fixes: #1579, #2087 Updates: #2082	9 years ago
Felix Lange	b3f1f4c673	p2p/discover: attempt to deflake TestUDP_responseTimeouts ... The test expected the timeout to fire after a matcher for the response was added, but the timeout is random and fired sooner sometimes.	9 years ago
Felix Lange	d1f507b7f1	p2p/discover: support incomplete node URLs, add Resolve	9 years ago
Péter Szilágyi	9e1d9bff3b	node: customizable protocol and service stacks	9 years ago
Felix Lange	32dda97602	p2p/discover: ignore packet version numbers ... The strict matching can get in the way of protocol upgrades.	9 years ago
Felix Lange	590c99a98f	p2p/discover: fix UDP reply packet timeout handling ... If the timeout fired (even just nanoseconds) before the deadline of the next pending reply, the timer was not rescheduled. The timer would've been rescheduled anyway once the next packet was sent, but there were cases where no next packet could ever be sent due to the locking issue fixed in the previous commit. As timing-related bugs go, this issue had been present for a long time and I could never reproduce it. The test added in this commit did reproduce the issue on about one out of 15 runs.	9 years ago
Felix Lange	01ed3fa1a9	p2p/discover: unlock the table during ping replacement ... Table.mutex was being held while waiting for a reply packet, which effectively made many parts of the whole stack block on that packet, including the net_peerCount RPC call.	9 years ago
Felix Lange	bfbcfbe4a9	all: fix license headers one more time ... I forgot to update one instance of "go-ethereum" in commit 3f047be5a.	9 years ago
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".	9 years ago
Felix Lange	ea54283b30	all: update license information	10 years ago
Felix Lange	261a8077c4	p2p/discover: deflake TestUDP_successfulPing	10 years ago
Felix Lange	251846d65a	p2p/discover: fix out-of-bounds slicing for chunked neighbors packets ... The code assumed that Table.closest always returns at least 13 nodes. This is not true for small tables (e.g. during bootstrap).	10 years ago
subtly	8eef2b765a	fix test.	10 years ago
subtly	a32693770c	Manual send of multiple neighbours packets. Test receiving multiple neighbours packets.	10 years ago
Bas van Kervel	95773b9673	removed redundant newlines in import block	10 years ago
Bas van Kervel	b79dd188d9	replaced several path.* with filepath.* which is platform independent	10 years ago
Felix Lange	2adcc31bb4	p2p/discover: new distance metric based on sha3(id) ... The previous metric was pubkey1^pubkey2, as specified in the Kademlia paper. We missed that EC public keys are not uniformly distributed. Using the hash of the public keys addresses that. It also makes it a bit harder to generate node IDs that are close to a particular node.	10 years ago
Felix Lange	72ab6d3255	p2p/discover: track sha3(ID) in Node	10 years ago
Felix Lange	fc747ef4a6	p2p/discover: new endpoint format ... This commit changes the discovery protocol to use the new "v4" endpoint format, which allows for separate UDP and TCP ports and makes it possible to discover the UDP address after NAT.	10 years ago
Péter Szilágyi	8646365b42	cmd/bootnode, eth, p2p, p2p/discover: use a fancier db design	10 years ago
Péter Szilágyi	6def110c37	cmd/bootnode, eth, p2p, p2p/discover: clean up the seeder and mesh into eth.	10 years ago
Péter Szilágyi	971702e7a1	p2p/discovery: fix broken tests due to API update	10 years ago
Felix Lange	de7af720d6	p2p/discover: implement node bonding ... This a fix for an attack vector where the discovery protocol could be used to amplify traffic in a DDOS attack. A malicious actor would send a findnode request with the IP address and UDP port of the target as the source address. The recipient of the findnode packet would then send a neighbors packet (which is 16x the size of findnode) to the victim. Our solution is to require a 'bond' with the sender of findnode. If no bond exists, the findnode packet is not processed. A bond between nodes α and β is created when α replies to a ping from β. This (initial) version of the bonding implementation might still be vulnerable against replay attacks during the expiration time window. We will add stricter source address validation later.	10 years ago
Felix Lange	170eb3ac68	p2p/discover: map listening port using configured mechanism	10 years ago
Felix Lange	9915d3c3be	p2p/discover: deflake UDP tests	10 years ago
Felix Lange	8564eb9f7e	p2p/discover: add node URL functions, distinguish TCP/UDP ports ... The discovery RPC protocol does not yet distinguish TCP and UDP ports. But it can't hurt to do so in our internal model.	10 years ago
Felix Lange	739066ec56	p2p/discover: add some helper functions	10 years ago
Felix Lange	12224c7f59	p2p/discover: new package implementing the Node Discovery Protocol	10 years ago