Matthias Radestock
a6eea3405a
comment
2014-08-27 15:24:10 +01:00
Matthias Radestock
2a3256805f
tiny refactor: rename, move
2014-08-26 21:28:40 +01:00
Matthias Radestock
6f30cf2daf
8 is better than 10
...
It's quite common for the real pmtu to be 8 less than what was
advertised.
2014-08-26 21:11:24 +01:00
Matthias Radestock
c5d39fd5bf
drop maxpayload in conjunction with clientPMTU
...
Seems odd to do the latter w/o the former. And wrong.
2014-08-26 21:09:23 +01:00
Matthias Radestock
c6a796675d
pay attention to EMSGSIZE errors when sending pmtu verification packets
...
and drop the pmtu accordingly
This way, when we actually *do* get pmtu info from the network/kernel
we can discover the correct pmtu much more quickly. Especially in the
absence of other traffic, forwarding of which was previously the only
place where we'd check for EMSGSIZE.
Fixes #12
2014-08-26 21:05:13 +01:00
Matthias Radestock
fa5a5f46b4
usability: check that script is being run as root
...
so we can display a nicer error if not
2014-08-26 13:40:09 +01:00
Matthias Radestock
9c5603ebe7
add Troubleshooting section
2014-08-26 12:55:13 +01:00
Matthias Radestock
7e90c73d97
cosmetic: break overlong line
2014-08-26 11:57:01 +01:00
Matthias Radestock
e057799e0c
add some basic error handling to 'weave' script
2014-08-26 11:54:01 +01:00
Matthias Radestock
b35f83f132
explain that we need docker (yes, really)
...
and switch from 'curl' to 'wget' for installing weave, since the
latter is more widely installed. Also, make root use during that more
explicit.
2014-08-26 11:24:47 +01:00
Matthias Radestock
565856eaba
run weave in privileged container
...
...since on selinux (and possibly others) we encounter a "bind:
permission denied" error instead, most likely because weave is
attempting to bind a raw ip socket, which is a restricted operation on
those systems.
Fixes #7
2014-08-26 10:27:47 +01:00
Matthias Radestock
e5df6ee414
tweak intro
2014-08-25 11:55:24 +01:00
Matthias Radestock
81d657f067
container mobility feature
2014-08-24 20:44:47 +01:00
Matthias Radestock
3535604f0a
we only know that the build works under Ubuntu
2014-08-24 20:22:14 +01:00
Matthias Radestock
f0182ba471
refactor: reduce indentation
2014-08-23 10:32:39 +01:00
Matthias Radestock
07a59d5bb3
r
2014-08-22 18:22:43 +01:00
Matthias Radestock
516c1363e3
eliminate dependency on pipework
...
...and docker-ns (though we still leave the script around since it's
handy for debugging), and arping (as I have yet to encounter a
situation where it was required)
2014-08-22 18:14:17 +01:00
Matthias Radestock
7a09d97cf5
when forwarding frames, send icmp 3.4 packets back to the source
...
...instead of injecting them on the local interface.
fixes #2
2014-08-22 15:18:31 +01:00
Matthias Radestock
bbafba4fe8
cosmetic
2014-08-22 10:46:10 +01:00
Matthias Radestock
775a603a2c
log relaying
2014-08-21 21:52:14 +01:00
Matthias Radestock
6320866961
rename exe to 'weaver' and script to 'weave'
2014-08-21 16:05:17 +01:00
Matthias Radestock
a6f66d49b2
gitignore pipework
2014-08-21 13:05:27 +01:00
Matthias Radestock
2260495a54
more intro
2014-08-21 12:31:15 +01:00
Matthias Radestock
5bebccf34c
succinct
2014-08-21 12:21:23 +01:00
Matthias Radestock
e5dccef8fd
cosmetic
2014-08-21 09:38:17 +01:00
Matthias Radestock
8e6d5de9c2
explain that 'wedo run' is a wrapper around 'docker run -d'
2014-08-21 09:31:01 +01:00
Matthias Radestock
01aa187494
s/$@/"$@"/g
2014-08-21 09:05:07 +01:00
Matthias Radestock
2daa5f7d6f
permit running 'wedo' without script installation
2014-08-21 08:59:11 +01:00
Matthias Radestock
3914d46934
improve 'Installation' section of docs
2014-08-21 08:37:52 +01:00
Matthias Radestock
6289e8a473
fix typo
2014-08-21 08:26:13 +01:00
Matthias Radestock
7b85049e0b
fix error handling in pcap creation
2014-08-20 17:28:14 +01:00
Matthias Radestock
1a41df1edf
zero copy capture
...
delay copying until necessary
2014-08-20 16:08:43 +01:00
Matthias Radestock
276e3b8487
refactor: move packet i/o initialisation into one place
2014-08-20 14:53:27 +01:00
Matthias Radestock
7c4464c852
pcap handles are not thread safe
...
they contain an errbuf; there might be other issues too.
So we must use different handles in the sniffer and udplistener
goroutines.
2014-08-20 11:42:55 +01:00
Matthias Radestock
cb2cdc90cc
introduce abstraction for packet i/o
2014-08-20 11:18:12 +01:00
Matthias Radestock
5b7666a850
cosmetic
2014-08-20 11:01:18 +01:00
Matthias Radestock
9dd15f4abf
use dst address as source of icmp 3.4, instead of router address
...
For some reason, packets injected with a src ip that isn't in the
sub-net of the dst ip get dropped.
fixes #1
2014-08-20 09:43:59 +01:00
Matthias Radestock
1ef941e77e
capture and inject on the same pcap handle
...
...since there's no need to have separate handles
Also, make router.Start() perform all startup, including starting a
sniffer goroutine. The main goroutine is now kept alive by the signal
handling loop.
2014-08-19 15:47:09 +01:00
Matthias Radestock
b4635bc7ff
refactor: don't pass around router.Ourself
2014-08-19 15:27:57 +01:00
Matthias Radestock
31166023b2
rename interface
2014-08-19 11:55:15 +01:00
Matthias Radestock
f762783fd9
fix the first octet of the generated MAC
...
so we don't accidentally create multi-cast addresses, or addresses
that claim to be vendor-assigned
2014-08-19 11:18:27 +01:00
Matthias Radestock
d5982aa4f9
update docs to reflect that image is now on docker hub
2014-08-18 19:33:22 +01:00
Matthias Radestock
aeef0d7343
git-ignore compile output
2014-08-18 18:02:28 +01:00
Matthias Radestock
e6feefa1fc
initial commit
2014-08-18 17:55:26 +01:00
Matthias Radestock