96 Commits

Author	SHA1	Message	Date
Arceliar	790524bd1c	copy/paste old flowkey logic into a util function, add a struct of key and packet, make WriteNoCopy accept this instead of a slice	2019-08-06 19:25:55 -05:00
Arceliar	679866d5ff	have createSession fill the sessionInfo.cancel field, have Conn use Conn.session.cancel instead of storing its own cancellation, this should prevent any of these things from being both nil and reachable at the same time	2019-08-05 19:11:28 -05:00
Arceliar	979c3d4c07	move some potentially blocking operations out of session pool workers, minor cleanup	2019-08-04 16:29:58 -05:00
Arceliar	1e6a6d2160	use session.cancel in the router to make blocking safe, reduce size of fromRouter buffer so the drops in the switch are closer to the intended front-drop behavior	2019-08-04 02:21:41 -05:00
Arceliar	cbbb61b019	fix another drain on the bytestore	2019-08-04 00:00:41 -05:00
Arceliar	00e9c3dbd9	do session crypto work using the worker pool	2019-08-03 23:27:52 -05:00
Arceliar	befd1b43a0	refactor session worker code slightly	2019-08-03 23:14:51 -05:00
Arceliar	b9987b4fdc	reduce time spent with a mutex held in sessionInfo.recvWorker	2019-08-03 22:47:10 -05:00
Arceliar	099bd3ae1e	reduce part of sendWorker that needs to keep a mutex	2019-08-03 22:35:10 -05:00
Arceliar	5dfc71e1ee	put bytes back when done	2019-08-03 22:00:47 -05:00
Arceliar	df0090e32a	Add per-session read/write workers, work in progress, they still unfortunately need to take a mutex for safety	2019-08-03 21:46:18 -05:00
Arceliar	e0a3055c2f	get rid of session workers, new util.PutBytes/GetBytes logic	2019-07-27 18:10:32 -05:00
Arceliar	cd29fde178	temporary workaround to concurrency bug in sessions.getSharedKey	2019-06-29 19:32:15 -05:00
Arceliar	7d58a7ef3e	fix channel multiple close bug and concurrency bug in the way sessionInfo.close was being called	2019-06-29 17:44:28 -05:00
Arceliar	818eca90db	fix nil pointer deref if searches fail, block dial until a search exceeds or a timeout passes (todo: replace timer with context)	2019-06-29 16:10:02 -05:00
Arceliar	e88bef35c0	get rid of old buffered session packets	2019-06-28 20:02:58 -05:00
Arceliar	e7cb76cea3	clean up unused old session maps	2019-06-28 19:21:44 -05:00
Neil Alexander	f545060e89	Add notes on isSessionAllowed checks	2019-06-13 23:37:53 +01:00
Neil Alexander	720a078a35	Add SetSessionGatekeeper ... This allows you to define a function which determines whether a session connection (either incoming or outgoing) is allowed based on the public key.	2019-06-11 10:52:21 +01:00
Neil Alexander	3b6c726a3c	Fix bug where MTU was ignored by sessions, resulting in default 1280	2019-05-29 19:11:12 +01:00
Neil Alexander	78eb40cbad	Record session uptime (purely for the admin socket)	2019-05-29 12:59:36 +01:00
Arceliar	0059baf36c	add a newConn function that returns a pointer to a Conn with atomics properly initialized	2019-04-26 18:07:57 -05:00
Neil Alexander	75130f7735	Fix TAP support again	2019-04-23 11:46:16 +01:00
Neil Alexander	d7a1c04748	It works, sort of, amazingly	2019-04-22 23:58:59 +01:00
Neil Alexander	ea8948f378	TUN/TAP addr/subnet to Conn mappings, other fixes	2019-04-22 20:06:39 +01:00
Neil Alexander	9778f5d2b8	Fix search behaviour on closed Conns, various other fixes	2019-04-22 15:00:19 +01:00
Neil Alexander	47eb2fc47f	Break deadlock by creating session recv queue when session is created instead of repointing at search completion, also make expired atomic	2019-04-22 11:20:35 +01:00
Arceliar	5dada3952c	use a session worker to try to avoid mutex hell. compiles, but incomplete and doesn't work yet	2019-04-21 20:38:14 -05:00
Neil Alexander	79bcfbf175	Change some mutexes to atomics, change conns map to pointers, sort of works but seems to deadlock very easily	2019-04-21 11:50:41 +01:00
Neil Alexander	d01662c1fb	Try to convert TUN/TAP to use new yggdrasil.Conn, search masks are still broken	2019-04-20 16:32:27 +01:00
Neil Alexander	f3e742a297	Squash a whole load of races (and mutex half the world)	2019-04-20 11:53:38 +01:00
Neil Alexander	e31b914e38	Improve errors and handling of expired sessions	2019-04-19 23:30:43 +01:00
Neil Alexander	aac88adbed	Listen-Accept-Read-Write pattern now works, amazingly	2019-04-19 22:57:52 +01:00
Neil Alexander	27b78b925d	Move mutexes around	2019-04-19 21:23:15 +01:00
Neil Alexander	e3eadba4b7	Protect session nonces with mutexes, modify sent/received bytes atomically	2019-04-19 20:10:41 +01:00
Neil Alexander	ade684beff	Signal when a session is closed, other tweaks	2019-04-19 10:55:15 +01:00
Neil Alexander	b20c8b6da5	Move some things around a bit, delete session workers	2019-04-19 00:11:43 +01:00
Neil Alexander	b2f4f2e1b6	Update errors, update Write	2019-04-19 00:07:26 +01:00
Neil Alexander	160e01e84f	Searches called from api.go, various other tweaks, searches now have a callback for success/failure, node ID now reported by admin socket	2019-04-18 23:38:23 +01:00
Neil Alexander	58f5cc88d0	Fix session bug, fix dummy adapter, fix mobile framework builds	2019-04-01 19:59:50 +01:00
Neil Alexander	dd05a7f2a8	Tweaks	2019-03-28 19:09:19 +00:00
Neil Alexander	0b494a8255	Refactoring: move tuntap and icmpv6 into separate package	2019-03-28 00:30:25 +00:00
Arceliar	304f22dc1d	re-enable session workers in a way that doesn't block and drops packets before decrypting if necessary	2019-02-28 20:05:21 -06:00
Arceliar	042adb0516	make sure the only place traffic is ever dropped is in the switch. this currently disables the dedicated crypto workers	2019-02-23 00:07:00 -06:00
Arceliar	bca69df1f6	possible workaround to a deadlock	2019-01-26 14:07:18 -06:00
Neil Alexander	62d4d62a77	Update comments	2019-01-21 16:24:29 +00:00
Neil Alexander	d3f67ad017	Improve command flow	2019-01-21 16:22:49 +00:00
Neil Alexander	cdfb930703	Update switch flow separation for IPv4	2019-01-21 12:27:29 +00:00
Neil Alexander	9d5085492e	Handle session firewall using central config	2019-01-16 20:38:51 +00:00
Neil Alexander	2cd373fc1e	Remove unnecessary selects	2019-01-15 08:51:19 +00:00