Commit Graph

122 Commits

Author SHA1 Message Date
Adam Ierymenko
8ef4edebbf Deferred decode for HELLO to prevent HELLOcalypse under high load of new peers. 2015-11-05 12:22:58 -08:00
Adam Ierymenko
f1b6427e63 Decided to make this 1.1.0 (semantic versioning increment is warranted), and add a legacy hack for older clients working with clusters. 2015-11-02 09:32:56 -08:00
Adam Ierymenko
938d0a970b TRACE build fixes. 2015-10-28 10:01:32 -07:00
Adam Ierymenko
da93712846 Clean up PUSH_DIRECT_PATH limits a bit more and make them a bit smarter. 2015-10-28 09:11:30 -07:00
Adam Ierymenko
cdc99bfee1 Add a circuit breaker for VERB_PUSH_DIRECT_PATHS. 2015-10-27 18:18:26 -07:00
Adam Ierymenko
88b100e5d0 More cleanup. 2015-10-27 17:59:17 -07:00
Adam Ierymenko
16bc3e0398 Factor out RemotePath subclass of Path -- no longer needed, just cruft. 2015-10-27 15:00:16 -07:00
Adam Ierymenko
a1a0ee4edb Fix infinite loop in Cluster, clean up some stuff elsewhere, and back out rate limiting in PUSH_DIRECT_PATHS for now (but we will do something else to mitigate amplification attacks) 2015-10-27 12:01:00 -07:00
Adam Ierymenko
54a99d8e32 Well that was broken. 2015-10-27 11:14:07 -07:00
Adam Ierymenko
700c3166b7 Fix inverted sense bug. 2015-10-27 10:51:11 -07:00
Adam Ierymenko
9617208e40 Some cleanup, and use VERB_PUSH_DIRECT_PATHS to redirect newer peers. 2015-10-27 09:53:43 -07:00
Adam Ierymenko
2258e36a59 Move replication of COMs to avoid race condition. 2015-10-20 16:34:21 -07:00
Adam Ierymenko
59e1444b27 Finish wiring up Cluster, fix some issues with other recent changes. 2015-10-20 16:31:41 -07:00
Adam Ierymenko
eb79d4a2f3 Wire up peer announcement in cluster. 2015-10-20 16:24:21 -07:00
Adam Ierymenko
57e29857cf Cluster work -- integrating with the rest of the code. 2015-10-20 15:27:53 -07:00
Adam Ierymenko
3adb183c5f Fix bad COM attachment bug and eliminate an unnecessary redundant check. 2015-10-19 13:38:27 -07:00
Adam Ierymenko
95953b48f9 Do not allow VERB_RENDEZVOUS from non-upstream peers to block potential DOS vector. 2015-10-19 12:56:29 -07:00
Adam Ierymenko
5ce3aac929 Add rate limit on receive of DIRECT_PATH_PUSH to prevent DOS exploitation. 2015-10-16 10:28:09 -07:00
Adam Ierymenko
2debde3451 GitHub issue #235, and I also see no reason not to communicate with people from other Worlds. 2015-10-15 07:22:17 -07:00
Adam Ierymenko
c312ae221f Fix for world size in OK(HELLO) 2015-10-14 10:45:33 -07:00
Adam Ierymenko
123c466843 Full integration of World and World updates. 2015-10-13 12:17:47 -07:00
Adam Ierymenko
5d2f523e81 World stuff... 2015-10-13 12:10:44 -07:00
Adam Ierymenko
cae58f43f1 More World stuff, and mkworld. 2015-10-13 08:49:36 -07:00
Adam Ierymenko
1b1945c63e Work in progress on refactoring root-topology into World and adding in-band updates. 2015-10-12 18:25:29 -07:00
Adam Ierymenko
eff1fe3c61 Create files for each hop (more convenient) and fix a packet parse bug. 2015-10-09 16:22:34 -07:00
Adam Ierymenko
aec13b50fd Be a bit more verbose in circuit test reports to more clearly track current and upstream hop in graph traversal history. 2015-10-09 15:05:26 -07:00
Adam Ierymenko
0c498556d5 Unroll Salsa20 fully for a little more speed (non-SSE now almost as fast as SSE) 2015-10-09 09:39:27 -07:00
Adam Ierymenko
a3876353ca Abiltiy to post a test via the controller web API, and parsing of CIRCUIT_TEST_REPORT messages. 2015-10-08 13:25:38 -07:00
Adam Ierymenko
0ce0bc00d2 Make sure received() gets called for some new messages, and docs. 2015-10-07 16:20:54 -07:00
Adam Ierymenko
69b44bf9a5 Finally add an ECHO. 2015-10-07 16:11:50 -07:00
Adam Ierymenko
73cafbe0ec Limit proof of work difficulty to something sane. 2015-10-07 13:46:44 -07:00
Adam Ierymenko
e5f168f599 Add proof of work request for future DDOS mitigation use. 2015-10-07 13:35:46 -07:00
Adam Ierymenko
13f14c2f4c Kill debug line. 2015-10-07 10:56:47 -07:00
Adam Ierymenko
ab0228f626 More cleanup and simple refactoring, consolidate InetAddres serialize/deserialize into the class. 2015-10-07 10:30:47 -07:00
Adam Ierymenko
1b2cac0cc5 Trim some cruft that is not used and probably never would be. 2015-10-07 09:38:33 -07:00
Adam Ierymenko
3593fb3462 Send initial CIRCUIT_TEST packet. 2015-10-06 15:16:41 -07:00
Adam Ierymenko
d3f29d09e8 Plumbing through circuit test stuff. 2015-10-06 14:42:51 -07:00
Adam Ierymenko
5341afcdcd Handling of CIRCUIT_TEST, should be ready to test. 2015-10-06 11:47:16 -07:00
Adam Ierymenko
a3db7d0728 Refactor: move network COMs out of Network and into Peer in prep for tightening up multicast lookup and other things. 2015-10-01 11:11:52 -07:00
Adam Ierymenko
1a4f16e0ed More work on circuit testing... 2015-09-30 13:59:05 -07:00
Adam Ierymenko
f69454ec98 (1) Make ZT_ naming convention consistent (get rid of ZT1_), (2) Make local interface a full sockaddr_storage instead of an int identifier, which turns out to be better for multi-homing and other uses. 2015-09-24 16:21:36 -07:00
Adam Ierymenko
367ffde00c Plumb through localInterfaceId to track local interfaces corresponding with remote addresses. 2015-09-23 13:49:56 -07:00
Adam Ierymenko
0d386f1c31 Add a bit of useful testing instrumentation to SqliteNetworkController. 2015-09-08 11:35:55 -07:00
Adam Ierymenko
b31071463c Try another NAT traversal improvement. 2015-07-28 11:28:47 -07:00
Adam Ierymenko
b3516c599b Add a rate limiting circuit breaker to the network controller to prevent flooding attacks and race conditions. 2015-07-23 10:10:17 -07:00
Adam Ierymenko
3ba54c7e35 Eliminate some poorly thought out optimizations from the netconf/controller interaction,
and go ahead and bump version to 1.0.4.

For a while in 1.0.3 -dev I was trying to optimize out repeated network controller
requests by using a ratcheting mechanism. If the client received a network config
that was indeed different from the one it had, it would respond by instantlly
requesting it again.

Not sure what I was thinking. It's fundamentally unsafe to respond to a message
with another message of the same type -- it risks a race condition. In this case
that's exactly what could happen.

It just isn't worth the added complexity to avoid a tiny, tiny amount of network
overhead, so I've taken this whole path out.

A few extra bytes every two minutes isn't worth fretting about, but as I recall
the reason for this optimization was to save CPU on the controller. This can be
achieved by just caching responses in memory *there* and serving those same
responses back out if they haven't changed.

I think I developed that 'ratcheting' stuff before I went full time on this. It's
hard to develop stuff like this without hours of sustained focus.
2015-07-23 09:50:10 -07:00
Adam Ierymenko
0b354803f3 Clean up some YAGNI issues with implementation of GitHub issue #180, and make best path choice aware of path rank. 2015-07-13 10:03:04 -07:00
Adam Ierymenko
0b9524f23d Merge branch 'adamierymenko-dev' of http://git.int.zerotier.com/zerotier/zerotierone into adamierymenko-dev 2015-07-13 09:30:02 -07:00
Adam Ierymenko
4bf3bcbd55 Fixes to PUSH_DIRECT_PATHS. 2015-07-13 09:29:51 -07:00
Adam Ierymenko
3f0eca72f7 ZT_TRACE build fix. 2015-07-13 08:36:22 -07:00