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Author SHA1 Message Date
Michael Stapelberg
a5d9e03dd3 dhcp4d: don’t incorrectly hand out reused addresses 
fixes #18
 2018-12-15 12:44:09 +01:00
Michael Stapelberg
badee1eef8 netconfig_test: skip test if WireGuard is unavailable 2018-11-26 18:43:04 +01:00
Michael Stapelberg
ec4f1f4dc5 netconfig: implement WireGuard support 
To set up a tunnel, create a /perm/wireguard.json as illustrated in
netconfig_test.go, and don’t forget to adjust your /perm/interfaces.json with
the address configuration for the WireGuard tunnel.

Note that static routes cannot currently be configured, so the usefulness is
limited. If you have a use-case you’d like to see covered, please explain it in
https://github.com/rtr7/router7/issues/14
 2018-11-26 18:29:03 +01:00
Michael Stapelberg
b6a5227d49 netconfig_test: better diffs, refactor for clarity/brevity 2018-11-26 08:46:59 +01:00
Michael Stapelberg
127bdc466e netconfig_test: use ip -netns instead of ip netns exec ip 2018-11-26 08:32:38 +01:00
Michael Stapelberg
ac883da6a5 dns_test: xps → testtarget 
This fixes running the tests on xps, where the entry derived from os.Hostname
would clash with the xps entries the testcase tries to install.
 2018-11-22 17:03:51 +01:00
Michael Stapelberg
df9a40557c dhcp4: correctly check errors from c.once 2018-11-21 08:41:24 +01:00
Michael Stapelberg
bef7168112 dhcp4: resolve TODOs in comments 2018-11-21 08:41:07 +01:00
Michael Stapelberg
5b34daeb4e no-op cleanup: switch to dhcp4.LeaseFromACK 2018-11-21 08:23:57 +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
30e9a6677b integration/dhcpv4: print unified line-wise diff 
This is much more readable than the go-cmp Diff() output when dealing with
[]string lines.
 2018-11-18 14:29:30 +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
4288adec69 dns: don’t let clients override the hostname 
fixes #11
 2018-10-22 21:43:41 +02:00
Michael Stapelberg
0bbc1d923d refactor replayer code into pcapreplayer package 2018-10-22 21:04:35 +02:00
Michael Stapelberg
e01a38ff78 commit debug statements 2018-10-22 18:58:40 +02:00
Michael Stapelberg
817fdc81f8 README: recommend to install all rtr7 tools 2018-10-22 18:58:40 +02:00
Michael Stapelberg
2e8e0daa0a implement TCP MSS clamping (for non-ethernet uplinks) 
We didn’t have a need to clamp the TCP Maximum Segment Size (MSS) up until now,
because fiber7 uses an MTU of 1500.

Because Path MTU discovery is often broken on the internet, it’s best practice
to limit the Maximum Segment Size (MSS) of each TCP connection, achieving the
same effect (but only for TCP connections).

This change is beneficial when running router7 behind a non-ethernet uplink,
such as a Fritz!Box cable modem.

This has no adverse effect on fiber7: after clamping, the MSS is still 1440, as
without clamping.
 2018-10-22 18:54:25 +02:00
Michael Stapelberg
c037bf9c5f dhcp4d: fix panic when receiving unsupported requests 2018-10-22 18:39:25 +02:00
insomniac
cfbf52db6e dhcp6: update after changes in insomniacslk/dhcp (#10) 2018-10-16 08:03:45 +02:00
Pablo Mazzini
81894ba0b3 dhcp6: simplify PD obtention (#9) 2018-10-11 14:29:22 +02:00
Michael Stapelberg
672134080f README: reference prometheus config + dashboard 2018-10-10 16:52:42 +02:00
Michael Stapelberg
b725100d9c add prometheus configuration examples 2018-10-10 16:49:45 +02:00
Michael Stapelberg
f606e70250 dhcp4d: respect broadcast bit 
Mac’s Internet Recovery DHCP client requires broadcast responses and will ignore
unicast responses outright.
 2018-10-07 17:36:00 +02:00
Michael Stapelberg
f7638dfeaa netconfig_test: test updating port forwardings after installation 
This uncovered an nftables issue:
695079ebff
 2018-10-03 18:24:54 +02:00
Michael Stapelberg
ea4ffa7bec OpenEthernet → NewEthernetHandle, remove kludge 2018-09-07 00:50:41 +02:00
Philipp Hug
aa404c3c54 Request nameserver, router and netmask as it might not be automatically returned by dhcp server. (#7) 2018-09-05 10:06:31 -06:00
Michael Stapelberg
447f1779e2 dhcp6: update for breaking upstream changes 
see https://github.com/insomniacslk/dhcp/pull/81
 2018-09-05 08:39:35 +02:00
Michael Stapelberg
4c4032d469 README: add radvd as consumer of dhcp6 lease file 2018-08-20 22:59:22 +02:00
Michael Stapelberg
14f1636bc0 travis: upgrade to xenial (Ubuntu 16.04) 
Perhaps this will use a newer kernel with support for nftables stateful objects?
 2018-08-10 09:37:25 +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
ad779c3665 dhcp6: update for breaking upstream changes 2018-08-05 11:45:03 +02:00
Michael Stapelberg
5a5a748b9f dnsd: don’t serve expired leases 
fixes #6
 2018-08-05 11:30:58 +02:00
Michael Stapelberg
daa14845ab netconfig: plug fd leak by closing the netlink handle 
fixes #4
 2018-07-22 23:07:23 +02:00
Michael Stapelberg
c5e5a0eee0 radvd: gather details about the interface on SIGUSR1 
The interface might have a new MAC address (if radvd was started before netconfigd).
 2018-07-16 22:46:49 +02:00
Michael Stapelberg
49a59779f5 dhcp4d: don’t offer expired leases 2018-07-15 18:33:11 +02:00
Michael Stapelberg
a9c7585eac README: add travis badge 2018-07-14 20:57:27 +02:00
Michael Stapelberg
4a85c51b9f add travis config 2018-07-14 20:53:24 +02:00
Michael Stapelberg
3282dc5675 netconfig: GetRule filtering is not supported by Linux 4.4.0 (trusty) 2018-07-14 20:53:15 +02:00
Michael Stapelberg
ea10307b5d dhcpv4: replace hard-coded midna → os.Hostname() 2018-07-14 17:35:25 +02:00
Michael Stapelberg
bfa16c559f dnsmasq: gracefully handle temporarily not existing ready files 2018-07-14 16:42:50 +02:00
Michael Stapelberg
3afe757a34 notify: gracefully handle vanishing processes 2018-07-14 16:36:51 +02:00
Michael Stapelberg
9e0f83a7cf integration tests: send ip netns add errors to stderr, too 2018-07-14 15:43:47 +02:00
Michael Stapelberg
9131e7a99c dhcp6: add missing err parameter 2018-07-14 15:17:12 +02:00
Michael Stapelberg
8da684cc8f README: add godoc badge 2018-07-14 15:14:42 +02:00
Michael Stapelberg
b08f872a65 add go report card 2018-07-14 14:55:30 +02:00
Michael Stapelberg
25ceda02ec README: get router7 repo explicitly 2018-07-14 14:34:08 +02:00
Michael Stapelberg
6b73254a72 write README.md 2018-07-14 14:03:02 +02:00
Michael Stapelberg
9153805e69 randomd moved to github.com/gokrazy/gokrazy/cmd/randomd 2018-07-14 12:51:28 +02:00