lordwelch/router7
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83 Commits

Author SHA1 Message Date
Michael Stapelberg
3834acfa2b dhcp4d: ensure MQTT topic names are valid UTF-8 
https://twitter.com/zekjur/status/1347295676909158400
 2021-01-07 22:52:58 +01:00
Michael Stapelberg
5f25043b94 dhcp4d: only publish to MQTT when channel is ready to prevent deadlocks 2020-12-31 16:42:12 +01:00
Michael Stapelberg
c3c531931c retry MQTT connections, even if initial connection attempt fails 2020-12-31 16:42:01 +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
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
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
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
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
f86e20be53 dhcp6: port dhcp4 backoff logic 2020-07-02 22:07:26 +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
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
988aa405be
cmd/dhcp4d: make use of unused assignment 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2020-05-09 16:58:57 -04:00
Michael Stapelberg
2b6ab5b2bd dhcp4d: make hostname override settable from status page 2020-04-12 10:33:11 +02:00
Michael Stapelberg
e67fb4dd71 diagd: make output look good in a terminal, too 
curl diagd.router7/
 2020-03-11 22:12:00 +01:00
Michael Stapelberg
e34148d4e7 dhcp4d: add some leeway for lease activity 2020-02-06 18:48:19 +01:00
Michael Stapelberg
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
Michael Stapelberg
a2ea8c2f95 cmd/dhcp4d: refactor for testing, add /lease/ test 2020-01-31 19:00:51 +01:00
Michael Stapelberg
4558cb61b4 dhcp4d: serve lease json data at /lease/<hostname> 2020-01-31 18:30:18 +01:00
Michael Stapelberg
3707ba290c dhcp4d: move http.HandleFunc into logic 2020-01-31 18:25:02 +01:00
Michael Stapelberg
e76886dab4 dhcp4d: protect leases with a mutex 
The HTTP handler runs in a separate goroutine.
 2020-01-31 18:23:19 +01:00
Michael Stapelberg
fa82132962 dhcp4d: add HostnameOverride field 
This can be used to permanently override a hostname, regardless of whether the
lease is static or not. We use a separate field because we want devices to be
able to change their hostname themselves, until we override it.
 2019-08-30 09:06:21 +02:00
Michael Stapelberg
323cc42b8e dhcp4d: polish status page, actually update it upon changes 2019-07-20 11:07:11 +02:00
Michael Stapelberg
c602f1d6b6 dhcp4d: introduce -interface flag 2019-07-20 10:50:30 +02:00
Michael Stapelberg
c211763b5d dhcp4d: indent leases.json for easier human editing 2019-07-20 10:49:53 +02:00
Michael Stapelberg
373c83196d dhcp4: make interface and state directory configurable 
This is useful for manual testing on separate interfaces.
 2019-06-06 07:52:08 +02:00
Michael Stapelberg
3dad1e9a23 dhcp4: use the configured (not the current) MAC address 
This fixes a race where dhcp4 started before netconfigd had a chance to change
the hardware address on the uplink0 interface.

fiber7’s port security feature may result in an about hour-long internet outage
without this commit.
 2019-02-19 09:39:16 +01:00
Michael Stapelberg
abeddabbb7 dhcp4d: restrict lease details page to internal IPs 2019-02-19 07:50:39 +01:00
Michael Stapelberg
6320b6c3a7 dhcp4d: display MAC vendor of each lease’s HardwareAddr 2019-01-06 18:02:01 +01:00
Michael Stapelberg
8df6329209 use renameio to write files atomically 2019-01-06 15:25:33 +01:00
Michael Stapelberg
f67d4ec93f radvd: load extra prefixes from /perm/radvd/prefixes.json 2019-01-06 15:12:22 +01:00
Michael Stapelberg
bd8fc63b0e dns: implement per-DHCP-lease dyndns 
The HTTP API is easy to use from the command line or from Go:

% curl --data "host=sub&ip=192.168.33.44" -4 http://router7:8053/dyndns
ok
% host sub.$(hostname)
sub.midna has address 192.168.33.44

This can be used in combination with https://github.com/gokrazy/gdns
 2019-01-06 14:41:26 +01:00
Michael Stapelberg
8c55c5ba44 dhcp4: switch to github.com/rtr7/dhcp4 
All existing DHCPv4 packages I looked at were unappealing for one reason or
another, so we’re now using a little helper to glue github.com/google/gopacket
and github.com/mdlayher/raw together, which suffices for our use-case and gives
us more control.
 2018-11-21 08:18:58 +01:00
Michael Stapelberg
fac1bf231e netconfigd: notify dhcp4d to update its listeners 2018-10-29 18:14:01 +01:00
Michael Stapelberg
7d278289f0 captured: directly call NextPacket() to prevent hanging reads 
Using Packets() spawns off a separate goroutine which calls NextPacket in a loop
until io.EOF is returned. This goroutine will stick around after Close()
returned, resulting in only the first wireshark connection working.
 2018-10-23 09:56:07 +02:00
Michael Stapelberg
d9f5d95812 dhcp4d: export number of non-expired DHCP leases 2018-10-23 08:49:29 +02:00
Michael Stapelberg
ea4ffa7bec OpenEthernet → NewEthernetHandle, remove kludge 2018-09-07 00:50:41 +02:00
Michael Stapelberg
b03596f1c5 nftables: use stateful object counters 
This way, we can atomically get and reset them.

fixes https://github.com/rtr7/router7/issues/3
 2018-08-08 23:15:21 +02:00
Michael Stapelberg
9131e7a99c dhcp6: add missing err parameter 2018-07-14 15:17:12 +02:00
Michael Stapelberg
9153805e69 randomd moved to github.com/gokrazy/gokrazy/cmd/randomd 2018-07-14 12:51:28 +02:00
Michael Stapelberg
b347ed74c5 update import paths 2018-07-09 08:54:04 +02:00
Michael Stapelberg
88bf7d90eb dhcp6: delay at least 10s before attempts 
Otherwise we might exceed fiber7’s firewall rules and get blacklisted.
 2018-07-03 17:36:46 +02:00
Michael Stapelberg
ff7aa8f2cb add copyright notices 2018-06-28 20:08:23 +02:00
Michael Stapelberg
ab75e4a1b5 check for updateListeners errors 2018-06-28 20:08:23 +02:00
Michael Stapelberg
2b3cf0bf61 captured: use multilisten 2018-06-28 20:08:23 +02:00
Michael Stapelberg
c24eefbb51 diagd: expose machine-readable healthiness 2018-06-26 21:52:29 +02:00
Michael Stapelberg
72661b13ec dnsd: listen on 8053 (metrics) on ipv6-net::1 2018-06-26 21:15:14 +02:00
Michael Stapelberg
4c7741a337 add backupd 2018-06-26 18:01:50 +02:00
Michael Stapelberg
86c9436e98 diagd: only listen on private addresses 2018-06-26 09:47:55 +02:00