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165 Commits
Author SHA1 Message Date
Martynas Pumputis e611f04f41 Move NetDev utils from common/ to net/ 2016-10-19 17:03:30 +01:00
Martynas Pumputis 3492cd93d0 Use safe version of WithNetNS 2016-10-19 16:15:59 +01:00
Martynas Pumputis 7f92c8c4c6 Add a safer version of WithNetNS* 
The introduced functions are executing the work function via
a process which executes "nsenter --net=path weaveutil ...".
 2016-10-06 15:25:05 +01:00
Matthias Radestock 06a63db4cf Merge branch '1.6' 2016-09-08 12:55:05 +01:00
Bryan Boreham c69e140e9e Check current tx value before trying to set it 2016-09-08 10:20:35 +01:00
Adam Harrison f5a30c790e Merge branch '1.6' 2016-07-28 11:30:47 +01:00
Martynas Pumputis fd0a7efa23 Fix "weave ps" output when weave is not running 
The #2418 has changed a behaviour of "weave ps" which outputs
"Link not found" in the case of weave not running. The previous
behaviour was to output an empty line.
 2016-07-14 15:15:14 +01:00
Bryan Boreham 88bf64722f Merge branch '1.6' 2016-07-12 10:33:38 +00:00
Martynas Pumputis 89221f117b Denote WithNetNS* functions with unsafe 
Please see https://github.com/weaveworks/weave/issues/2388#issuecomment-228365069
for more details.
 2016-07-05 15:12:39 +01:00
Martynas Pumputis 05baa566c6 Refactor common.GetBridgeNetDev 
- Optimize. Use LinkByName instead of iterating over list of available
  links. Linux does not support interfaces with the same names.
- Remove unnecessary indirection in utility functions which return
  common.NetDev.
 2016-07-05 15:12:39 +01:00
Adam Harrison f386548890 Maintain per-subnet ACCEPT rule for multicast ingress 2016-06-17 17:19:52 +01:00
Adam Harrison c80d87554a Maintain per-interface DROP rule for multicast ingress 2016-06-17 16:10:13 +01:00
Martynas Pumputis 7670fed72c Add AWSVPC setup routines to the attach script 
When running in the AWSVPC mode, we need to do the following:

- Keep the HW TX offloading on.
- Check that the allocated address belongs to the default subnet,
  because only one subnet is allowed and it should be the default one.

If it is not possible to determine whether AWSVPC is on, we ignore
all the steps, because the attachment routines have to work
regardless whether the router is running and the AWSVPC detection
is done by querying the /ipinfo/tracker endpoint served by
the router.
 2016-06-08 16:44:54 +01:00
Martynas Pumputis c260536429 Add AWSVPC Tracker 
The tracker is responsible for managing the AWSVPC route tables
which is used to implement the underlay routing based on VPC.
 2016-06-08 16:44:54 +01:00
Martynas Pumputis 2266868648 Add the range.CIDRs functions 2016-06-08 16:44:54 +01:00
Bryan Boreham b417696c66 Wait 1ms before sending gratuitous arp 2016-05-26 11:17:04 +00:00
Bryan Boreham 6dd109a5bb Only do ethtool tx off in bridged (pcap) mode. 
Detect the bridge type in the same way the weave script does.
 2016-05-25 17:34:13 +01:00
Bryan Boreham 2702b85ee5 Improve veth name construction; use a constant instead of "ethwe" 2016-05-25 17:34:13 +01:00
Bryan Boreham 8717fd15ed Use 'peer' and 'veth' instead of 'guest' and 'local', after review comments 2016-05-25 17:34:13 +01:00
Bryan Boreham ac14b19db8 Move attach() and detach() from shell script to Go 2016-05-25 17:34:13 +01:00
Adam Harrison e3ef473cd3 Utility function to disable tx checksum offload 2016-05-25 17:29:45 +01:00
Bryan Boreham 4fc2835d92 Extract AddRoute function 2016-05-25 17:29:45 +01:00
Bryan Boreham 85023e0a76 Extract AttachContainer() function 
Also move netlink and netns code from common to net

Creates interface if not already there
Adds addresses
Move the set link 'up' to after addresses are added
 2016-05-25 17:29:45 +01:00
Bryan Boreham 0257274aa8 Extract basic veth setup 2016-05-25 17:23:49 +01:00
Bryan Boreham 9aaa7f19fd initialize via sub-function 2016-05-25 17:17:19 +01:00
Bryan Boreham d59c170cd5 Remove veth on error 2016-05-25 17:17:19 +01:00
Bryan Boreham f11d91badf Extract veth creation and LinkSetUp to net package 2016-05-25 17:17:19 +01:00
Martynas Pumputis 85cea672d3 Change the type of entry.Free to address.Count 
This change is backward compatible, because the underlying types of
address.Offset (the previous type) and address.Count are the same
and the Gob encoder does not require types to exactly correspond.
 2016-05-16 15:03:05 +01:00
Bryan Boreham d551b6b0a8 Review feedback 2016-05-13 16:27:28 +01:00
Bryan Boreham d1e2aa6d36 Use quick.Check instead of many specific tests 2016-05-13 16:27:28 +01:00
Bryan Boreham 64dc7a1f69 Donate power-of-2-aligned ranges instead of just slicing at the mid-point. 
Also fix up space tests to match.
 2016-05-13 16:27:28 +01:00
Matthias Radestock 495a35a6a6 work around fd re-use bug in vishvananda/netlink 
Closing a subscription can cause the associated fd to be re-used while
the subscription goroutine is also still trying to use it. Which can
have disastrous consequences.

So as a work around we don't close subscriptions. This means we leak
an fd, some buffer space, and goroutine. The latter will eventually
block in a channel send of a subscription event, since nothing is left
reading ont the other end. So at least it won't be consuming cycles.
 2016-04-01 11:07:19 +01:00
Bryan Boreham f11314ed3e Introduce 'Count' type to avoid abusing 'Offset' 2016-03-19 11:47:34 +00:00
Bryan Boreham 604309fb53 Parse CIDR strings without separating into subnet and address 2016-03-02 17:21:52 -08:00
Bryan Boreham b76e2a87cf Store address+subnet prefix for 'owned' addresses 2016-03-02 17:21:24 -08:00
Matthias Radestock 6252871e93 Merge branch '1.4' 2016-02-09 09:30:19 +00:00
Bryan Boreham 9386c01845 Wait for multicast route on any interface, to match weave script 
which only adds a route if there isn't one already
 2016-02-08 14:04:25 +00:00
Bryan Boreham 78f2d82984 Extract function to listen on Unix socket 2016-02-01 10:11:46 +00:00
Matthias Radestock 3679065258 cope with nil route.Dst 
Fixes #1932.
 2016-01-27 22:02:07 +00:00
Matthias Radestock 43419815f4 bypass netlink.LinkByIndex 
since we are seeing some cases where it returns "Link not found" when
the link is in fact there.
 2016-01-19 16:36:16 +00:00
Matthias Radestock b5256f7b71 refactor: inline 
This eliminates the unnecessary indirection via interface names,
instead identifying the interface by its index.
 2016-01-19 16:36:16 +00:00
Matthias Radestock 0caa9dd652 cope with errors during route traversal 
Fixes #1909.
 2016-01-19 15:28:31 +00:00
Bryan Boreham 3b29e8e6f2 Check for existing interfaces and routes after subscribing to receive new ones 2016-01-12 12:27:55 +00:00
Bryan Boreham e230eeb486 Use upstream netlink code 2015-11-12 13:08:56 +00:00
Bryan Boreham 7b01dd9794 Drop use of interval notation 2015-11-04 16:45:16 +00:00
Bryan Boreham 6fce798164 Factor out deserializeRoute() func 2015-08-27 15:10:31 +01:00
Bryan Boreham 7801dcd849 Factor out common loop receiving from netlink 2015-08-27 15:10:31 +01:00
Bryan Boreham 2eed101a93 In weavewait, wait for the multicast route to be added before calling container entrypoint. 
We have moved the 'route add' command to the end of 'attach', so this
indicates that all network interface set-up is complete.
 2015-08-27 15:10:31 +01:00
Bryan Boreham 6e89b036e2 Wait for ethwe via netlink, not via polling or signals 
('docker kill' breaks restart policy)
 2015-08-27 15:03:41 +01:00
Tom Wilkie 9ab2da8deb Add GET /name handler to return all dns entries (including tombstones) for debugging. 
Also, make Address marshall into json as an IP string, not a number.
 2015-07-20 12:03:33 +00:00