Commit Graph

181 Commits

Author SHA1 Message Date
29eaa11052 Update parameters for clarity
Hijack the final A record in a CNAME chain if it is in our records
2021-05-23 17:49:15 -07:00
ef50f7c2e4 Merge remote-tracking branch 'origin/master' 2021-03-15 22:44:39 -07:00
a592bbc76a Revert "Fallback to DHCPDISCOVER after 4 failed timeouts"
This reverts commit 68105841c6.
2021-03-15 22:34:17 -07:00
9f4380a4a3 Fix the fallback to DHCP Discover
Log the IP Address of the server in each failed timeout
Update gokrazy
2021-01-09 15:32:30 -08:00
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
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
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
7f135438b8 dhcp4d: mention apple-suggested lease time of 1 hour 2020-11-01 19:24:24 +01:00
a8fce3cbbc diag: drain ping reply channel to avoid goroutine leak 2020-09-14 22:10:09 +02:00
416c1a58f6 diag: plug socket leak by adding missing Close() 2020-09-14 22:10:07 +02:00
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
68105841c6 Fallback to DHCPDISCOVER after 4 failed timeouts 2020-09-01 22:16:14 -07:00
04ee69ce02 go mod tidy
Update deps
2020-08-10 18:26:07 -07:00
7923e58428 dhcp4d: add an options argument for the dhcp server 2020-08-10 18:12:35 -07:00
2dc11ce1e3 Add additional test cases and fix some failing tests 2020-08-10 18:12:34 -07:00
e421cff225 Fix the implicit lan domain
Includes test for setting a custom domain
2020-08-10 18:12:34 -07:00
fbd2facfa1 Set the recursion available flag 2020-08-10 18:12:34 -07:00
fbbfa568a8 Add JSON tags 2020-08-10 18:12:34 -07:00
169bc5c3e7 DNS changes
go mod tidy
2020-08-10 18:12:34 -07:00
3c451f06ca Add the ability to run router7 on a normal Linux distribution 2020-08-10 18:12:34 -07:00
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
aa14d119e6 dyndns: add log message when records are updated
Now both cases are covered.
2020-05-28 17:24:51 +02:00
decb0978d7 dyndns: update to newer libdns/cloudflare, remove workaround 2020-05-28 17:22:24 +02:00
7950291db6 dyndns: tweak up-to-date message output 2020-05-28 09:42:55 +02:00
4a5f55a5de defense in depth: verify hex.DecodeString length
related to #49
2020-05-27 09:50:04 +02:00
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
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
fe68c2dd52 internal/radvd: add support for DNSSL (#47)
Signed-off-by: Matt Layher <mdlayher@gmail.com>
2020-05-23 19:52:52 +02:00
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
61174cde06 internal/netconfig: add missing error check
Signed-off-by: Matt Layher <mdlayher@gmail.com>
2020-05-09 17:04:31 -04:00
9f6257b046 internal/dns: fix staticcheck issues
Signed-off-by: Matt Layher <mdlayher@gmail.com>
2020-05-09 17:02:33 -04:00
b8c40958e8 internal/dhcp6: fix error case
Signed-off-by: Matt Layher <mdlayher@gmail.com>
2020-05-09 17:00:43 -04:00
411780cd8e internal/dhcp4: fix error case
Signed-off-by: Matt Layher <mdlayher@gmail.com>
2020-05-09 17:00:07 -04:00
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
8efea22943 internal/radvd: remove dead types
Signed-off-by: Matt Layher <mdlayher@gmail.com>
2020-05-09 16:52:52 -04:00
e1f2b975a1 internal/dhcp4d: fix staticcheck issues
Signed-off-by: Matt Layher <mdlayher@gmail.com>
2020-05-09 16:51:32 -04:00
107a8f0425 internal/radvd: switch to github.com/mdlayher/ndp types (#43)
Signed-off-by: Matt Layher <mdlayher@gmail.com>
2020-05-09 22:50:44 +02:00
2b6ab5b2bd dhcp4d: make hostname override settable from status page 2020-04-12 10:33:11 +02:00
4f0efc7b18 dhcp6: use new IAPD & Prefix getters (#41)
Signed-off-by: Chris Koch <chrisko@google.com>
2020-03-13 08:47:38 +01:00
e67fb4dd71 diagd: make output look good in a terminal, too
curl diagd.router7/
2020-03-11 22:12:00 +01:00
ffc4c21bcd dhcp6: use new getters (#37)
Signed-off-by: Chris Koch <chrisko@google.com>
2020-03-07 09:35:59 +01:00
dba1dad718 wireguard: switch to wgctrl package
related to #14
2020-02-16 00:15:23 +01:00
bfba9f17af netconfigd: collect all errors but keep going 2020-02-15 23:38:37 +01:00
96b626897a netconfigd: work not only with uplink0, but also eth0 and ens3
This makes it possible to use netconfigd on gokrazy Raspberry Pi installations.
2020-02-15 23:37:29 +01:00
ef60a01f3f netconfigd: continue if interfaces.json does not exist 2020-02-15 23:35:51 +01:00
a543cb9a34 dhcp4d: add header describing whether lease is active
Should be interpreted by the DHCP server so that other programs don’t need to
hard-code the lease time.
2020-01-31 19:11:08 +01:00
41985d6378 dhcp4d: reduce lease period to 20 minutes
This forces devices to renew the lease more often, which is nice when you want
to tie home automation behavior to DHCP lease validity.
2020-01-31 18:23:50 +01:00
73bd5c6a50 dhcp6: T1 is now already a time.Duration
see https://github.com/insomniacslk/dhcp/pull/347
2020-01-03 08:06:17 +01:00
3b5cf99b29 dhcp6_test: add new DHCPv6 infra packet capture 2019-12-02 10:43:39 +01:00
70edcab16b dns: return NXDOMAIN for DHCP leases once they expire 2019-09-07 19:27:12 +02:00