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Author SHA1 Message Date
Michael Stapelberg
c3c531931c retry MQTT connections, even if initial connection attempt fails 2020-12-31 16:42:01 +01:00
Michael Stapelberg
32b0dc7d59 Makefile: Go 1.16’s go install wants the @latest suffix 2020-12-19 13:52:03 +01:00
Michael Stapelberg
04f2be01d9 dhcp4d: optionally publish DHCP leases to MQTT 
Enable using:

  mkdir -p /perm/dhcp4d
  echo 'tcp://10.0.0.54:1883' > /perm/dhcp4d/mqtt-broker.txt
 2020-12-19 13:34:46 +01:00
Michael Stapelberg
e5ea79aef8 update go.{mod,sum} with Go 1.16beta1 2020-12-18 10:10:17 +01:00
Robert Obryk
f8d1b4c8f2
internal/dhcp4: make persistent errors actally persistent (#62) 
Previously, a permanent error would not be persisted for future
invocations of ObtainOrRenew. In practice, the daemon immediately
exited, so this made no difference.
 2020-11-23 09:35:00 +01:00
Robert Obryk
8de4eb7ba1
internal/dns: prevent upstreams from being lost during reordering (#63) 
If upstreams were reordered between start of an upstream request and its
conclusion, the move-to-front operation would likely incorrectly reorder
upstreams: duplicate one and remove another. Instead, we abandon the
move-to-front operation if that was about to happen.
 2020-11-23 09:34:04 +01:00
Robert Obryk
0507d93b3d
dhcp4d: ensure that SetHostname operates on the correct lease (#64) 
Previously SetHostname could operate on an expired lease, or even on a
lease for a different hwaddr, if the lease for the correct hwaddr
expired and the same lease ID was given away to someone else.

That's though mostly a theoretical concern, given the actual usage of
SetHostname and the time scales involved.
 2020-11-23 09:32:42 +01:00
Michael Stapelberg
7f135438b8 dhcp4d: mention apple-suggested lease time of 1 hour 2020-11-01 19:24:24 +01:00
Michael Stapelberg
a8fce3cbbc diag: drain ping reply channel to avoid goroutine leak 2020-09-14 22:10:09 +02:00
Michael Stapelberg
99c4046ebf diagd: import net/http/pprof 2020-09-14 22:10:07 +02:00
Michael Stapelberg
efbe826a4e diagd: -interface flag for easier testing 2020-09-14 22:10:07 +02:00
Michael Stapelberg
416c1a58f6 diag: plug socket leak by adding missing Close() 2020-09-14 22:10:07 +02:00
Michael Stapelberg
f8d79d0ecc dhcp4: close healthiness checking connection 2020-09-14 12:54:14 +02:00
Michael Stapelberg
fddfe80222 dhcp4: start from scratch after 5 minutes of continued unhealthiness 
fixes #58
 2020-09-14 09:06:05 +02:00
Michael Stapelberg
876f8e320f netconfig: de-configure old DHCPv4 addresses from uplink0 
It is generally not a good idea to have multiple IP addresses on the same
interface unless managing their relative priorities via metrics etc.

During an outage, I noticed that with multiple IP addresses,
Linux was using the old obsolete one to send out packets,
which does not work with the ISP.

With this change,
we still hold on to IP addresses for as long as possible,
but no longer.

fixes issue #57
 2020-09-12 19:58:47 +02:00
Michael Stapelberg
93fe6457b3 dnsd: serve DNS on tcp/53 as well (DNS must work over TCP) 
fixes #59
 2020-09-12 19:21:58 +02:00
Michael Stapelberg
ee17db29b6 GitHub actions: also exit early if gofmt reports syntax errors 2020-08-01 09:46:19 +02:00
Michael Stapelberg
5573c4dde7 GitHub actions: fix gofmt check 2020-08-01 09:28:02 +02:00
Michael Stapelberg
cf1e1dd480 re-generate website to pick up previous commit 2020-07-06 09:50:52 +02:00
CodeZombieCH
30b160ee55
website: added configuration section (#55) 
Added configuration section to the installation page, including
examples of configuration files.
 2020-07-06 09:50:37 +02:00
Michael Stapelberg
f86e20be53 dhcp6: port dhcp4 backoff logic 2020-07-02 22:07:26 +02:00
Michael Stapelberg
ae8cfee616 dhcp6: inspect server advertisment IAPD and report error, if any 
The fiber7 DHCPv6 servers (sometimes?) use this field for reporting errors.
 2020-07-02 22:06:55 +02:00
Michael Stapelberg
281f876834 integration/netconfig: verify wg(8) is available 
The kernel used on GitHub actions now allows creating wireguard interfaces
apparently.
 2020-07-02 21:14:35 +02:00
Michael Stapelberg
8c1b3676ab gokr-packer invocations: set empty -eeprom_package= 
We don’t need Raspberry Pi 4 EEPROM files on router7 on amd64,
and this makes the build easier.

fixes #54
 2020-07-02 21:06:22 +02:00
Michael Stapelberg
dff392e558 website: bundle assets for faster loading/privacy 2020-06-21 10:06:18 +02:00
Michael Stapelberg
876a3308d2 style tables with bootstrap table styles 
as per https://willschenk.com/articles/2020/styling_tables_with_hugo/
 2020-06-21 09:52:38 +02:00
Michael Stapelberg
cb95bb6df8 move README into (hugo-powered) website router7.org 2020-06-21 09:43:13 +02:00
Michael Stapelberg
1250211381 github actions: try caching the module cache 2020-06-16 23:41:21 +02:00
Michael Stapelberg
9c7e626f7d switch from travis to GitHub actions 2020-06-16 23:22:34 +02:00
Michael Stapelberg
b090fa2924 qemu: enable i6300esb watchdog device 
For the corresponding kernel change, see:
0f4dcc4a87
 2020-06-16 23:09:35 +02:00
Michael Stapelberg
1fd5468bab first start of a qemu target 2020-06-04 09:59:24 +02:00
Michael Stapelberg
aa14d119e6 dyndns: add log message when records are updated 
Now both cases are covered.
 2020-05-28 17:24:51 +02:00
Michael Stapelberg
decb0978d7 dyndns: update to newer libdns/cloudflare, remove workaround 2020-05-28 17:22:24 +02:00
Michael Stapelberg
f1e4ee0662 dyndns: don’t crashloop when config does not exist 
related to #46
 2020-05-28 09:46:37 +02:00
Michael Stapelberg
7950291db6 dyndns: tweak up-to-date message output 2020-05-28 09:42:55 +02:00
Michael Stapelberg
4a5f55a5de defense in depth: verify hex.DecodeString length 
related to #49
 2020-05-27 09:50:04 +02:00
Matt Layher
ead58ad72c
cmd/dyndns: prototype for dynamic DNS daemon (#50) 
Updates #46.

Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-23 23:06:21 +02:00
Matt Layher
7aeb51e9ec
internal/dhcp4d: handle DHCPDECLINE and fix bug regarding MacBook declining leases (#48) 
Fixes #40

Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-23 20:53:13 +02:00
Matt Layher
fe68c2dd52
internal/radvd: add support for DNSSL (#47) 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-23 19:52:52 +02:00
Michael Stapelberg
53c495091e quirk: enforce minimum lease time of 1 hour for Nintendo devices 
The Nintendo Switch has been observed to hold on to IP addresses even after
their expiration. My guess is that this is an oversight: likely the device
enters power saving mode with a configured IP address and just sleeps through
the expiration time.

As the device seems to wake up once every hour, we enforce a minimum lease time
of 1 hour, but only for affected devices. The rest of the network gets short
lease times.

https://twitter.com/zekjur/status/1263949112036282374
 2020-05-23 09:07:17 +02:00
Michael Stapelberg
d81b77a876
Merge pull request #44 from mdlayher/mdl-staticcheck 
*: apply staticcheck fixes
 2020-05-09 23:07:34 +02:00
Matt Layher
61174cde06
internal/netconfig: add missing error check 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 17:04:31 -04:00
Matt Layher
9f6257b046
internal/dns: fix staticcheck issues 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 17:02:33 -04:00
Matt Layher
b8c40958e8
internal/dhcp6: fix error case 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 17:00:43 -04:00
Matt Layher
411780cd8e
internal/dhcp4: fix error case 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 17:00:07 -04:00
Matt Layher
988aa405be
cmd/dhcp4d: make use of unused assignment 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 16:58:57 -04:00
Matt Layher
f87891a74b
integration/radvd: panic in goroutine instead of fatal 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 16:56:51 -04:00
Matt Layher
dd7c3a8a5f
internal/testing/dnsmasq: panic in goroutine instead of fatal 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 16:55:46 -04:00
Matt Layher
8efea22943
internal/radvd: remove dead types 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 16:52:52 -04:00
Matt Layher
e1f2b975a1
internal/dhcp4d: fix staticcheck issues 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 16:51:32 -04:00