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344 Commits
Author SHA1 Message Date
Matthias Radestock dc96fc17a9 correct protocol version 
let us not get ahead of ourselves
 2015-05-16 01:09:53 +01:00
Bryan Boreham 3cd1a17c23 IP Allocation Management 
Using the Ring CRDT and Weave gossip, provides an interface
for the weave script to allocate IP addresses in `weave run`,
`weave start` and `weave expose`.

See docs/ipam.md for implementation details, and site/features.md
for user-visible changes.
 2015-05-14 17:44:06 +01:00
Matthias Radestock c158b86dc6 refactor: shorten a method name 2015-05-14 15:13:10 +01:00
Matthias Radestock c7dd48d769 introduce PeerUID type 2015-05-14 12:35:01 +01:00
Matthias Radestock ace56da7b3 allow Gossiper.Gossip to return nil 
...to indicate 'no data'
 2015-05-14 12:02:56 +01:00
Matthias Radestock 953449c215 refactor: extract Peer.ForEachConnectedPeer helper 2015-05-11 21:06:07 +01:00
Matthias Radestock c5c93d3a77 refactor: increase similarity betweeen parts of route calculation 2015-05-11 20:14:24 +01:00
Matthias Radestock 039446f756 cosmetic: remove outdated comment 2015-05-11 20:00:04 +01:00
Matthias Radestock 43133b5851 increase tolerance for missed udp heartbeats 
3 are quite easy to miss when there is contention. 6 less so.
 2015-05-11 18:35:06 +01:00
Matthias Radestock e246e6acc6 coarser lock granularity 
- get rid of individual Peer locks
- hold Peers read (or write) lock and LocalPeer read lock while
  performing route calculations

This eliminates the deadlock resulting from the inconsistent lock
acquisition order in route calculcation.

Fixes #643.
 2015-05-11 17:19:54 +01:00
Matthias Radestock 5bd8730353 make Peer.Encode lock-free 2015-05-11 17:19:51 +01:00
Matthias Radestock c210f0e3c1 make Peer.Info lock-free 2015-05-11 17:19:46 +01:00
Matthias Radestock 426d8edb31 remove Peer.SetVersionAndConnections 
further shrinking Peer API
 2015-05-11 17:19:43 +01:00
Matthias Radestock 86ba3be4f7 move Connections from Peer to LocalPeer 
further shrinking the former's API
 2015-05-11 17:19:38 +01:00
Matthias Radestock 5bf6889250 remove Peer.Version 
further shrinking the Peer API
 2015-05-11 17:19:35 +01:00
Matthias Radestock 0229185ffe move ConnectionTo from Peer to LocalPeer 
further shrinking the former's API
 2015-05-11 17:19:31 +01:00
Matthias Radestock 505ced5cc8 move localRefCount accounting responsibility from Peer to Peers 
This makes for a more symmetric API - Peers.FetchWithDefault does the
increment and Peers.Dereference does the decrement, whereas previously
the latter was done by Peer.DecrementLocalRefCount.

This does increase lock granularity, i.e. modifying any ref count now
requires a write lock on Peers.
 2015-05-11 17:19:23 +01:00
Matthias Radestock 3e6eef5ebd refactor(ish): move a bunch of methods from Peer to LocalPeer 
in order to reduce the former's API surface
 2015-05-11 17:19:15 +01:00
Matthias Radestock 4bef9d90fb cosmetic: resolve some linter complaints 2015-05-11 02:33:56 +01:00
Matthias Radestock ef2c55141b keep linter happy 2015-05-11 02:25:01 +01:00
Matthias Radestock 0cbbe9bac3 make Peer.String() return the common case 
When we want a string representation of a Peer, we nearly always just
want the full name. So make String() return that and introduce Info()
to return expanded info.
 2015-05-10 23:58:23 +01:00
Matthias Radestock 7b0f432339 cosmetic: fix typo 2015-05-09 17:11:52 +01:00
Matthias Radestock 8caa58af26 Merge branch 'weave-common-signals' of https://github.com/inercia/weave into inercia-weave-common-signals 2015-05-06 19:33:06 +01:00
Alvaro Saurin f723d5afd8 Move the router to the new signals handler 2015-05-06 15:07:36 +02:00
Matthias Radestock e656d74633 cosmetic 2015-05-05 22:08:03 +01:00
Matthias Radestock 22e612a738 Merge branch 'reduced_gob' of https://github.com/awh/weave into awh-reduced_gob 2015-05-05 21:36:09 +01:00
Adam Harrison ab68a1c325 Introduce PeerSummary 2015-05-05 10:59:09 +01:00
Matthias Radestock e40f1fe9a7 fix typo and reformat 2015-05-02 17:46:21 +01:00
David Wragg be983931fc Produce a better error message when there is no real SetImmediateMode 
If gopacket is compiled against an older pcap.h that doesn't have
pcap_set_immediate_mode, it supplies a dummy definition that
always returns PCAP_ERROR.  That becomes "Generic error", which
is not very helpful.  The real pcap_set_set_immediate never
returns PCAP_ERROR, so this turns it into a more informative
message.
 2015-05-01 21:40:53 +01:00
Matthias Radestock 137776bcb2 remove decryptor shutdown 
we only needed it because of the nonce channels
 2015-04-30 14:47:16 +01:00
Matthias Radestock e223899982 remove nonce transmission from protocol 2015-04-30 14:47:16 +01:00
Matthias Radestock b365c3806b replace random nonces with message sequence numbers in udp crypto 2015-04-30 14:47:16 +01:00
Matthias Radestock 696bfe464c replace random nonces with message sequence numbers in tcp crypto 
Since TCP is reliable, we do not need to transmit the nonce itself;
the recipient can simply construct the nonce from its own message
counter. Hence there is no message envelope and we can thus remove a
whole layer of encoding.
 2015-04-30 14:47:16 +01:00
Adam Harrison b48a93c483 Remove obsolete connsIterator 2015-04-30 13:06:57 +01:00
Adam Harrison 047614b540 Encode/decode []ConnectionSummary instead of []byte 2015-04-30 13:03:18 +01:00
Adam Harrison 26dfc42034 Bump protocol version due to gob restructuring 2015-04-29 16:39:14 +01:00
Matthias Radestock 61a5640a95 do not connect to weave port of outbound connection endpoints 
There is no point.
 2015-04-28 16:07:34 +01:00
Matthias Radestock e45ea65e45 tiny simplifying refactor 2015-04-27 15:51:25 +01:00
Matthias Radestock b74348e59d d'oh 2015-04-27 08:58:02 +01:00
Matthias Radestock ce03f27044 refactor: use 'copy' instead of for loop for slice->array copy 2015-04-27 07:42:52 +01:00
Matthias Radestock 1de86f4312 cosmetic 2015-04-27 07:30:17 +01:00
Matthias Radestock 02a7875eb8 refactor: remove last dependency of crypto on LocalConnection 2015-04-27 07:27:31 +01:00
Matthias Radestock ea4e84cdd3 refactor: (almost) remove dependency of crypto on LocalConnection 2015-04-27 07:14:30 +01:00
Matthias Radestock 29c02d2724 refactor: lift error handling out of Encryptor.Bytes() 
in order to reduce dependency on LocalConnection
 2015-04-27 07:12:21 +01:00
Matthias Radestock fcd44c37e1 refactor: reduce coupling between connections and crypto 2015-04-27 06:13:41 +01:00
Matthias Radestock ff49bb5125 document why we carry the DF flag in payload 2015-04-25 12:36:05 +01:00
Matthias Radestock d82f60f18b cosmetic 2015-04-25 12:06:20 +01:00
Matthias Radestock d15575212a refactor: no need to record 'df' in two places in state 2015-04-25 12:05:17 +01:00
David Wragg dceef04ffa Separate Forwarder and ForwarderDF 
Much of the state and code associated with Forwarder only applied in the
DF case.
 2015-04-18 10:38:05 +01:00
Matthias Radestock a5a91ebb33 do not shut down connections on PacketDecodingError 2015-04-15 21:52:56 +01:00