Replace BusyBox udhcpc6 with OpenWrt's odhcp6c for improved DHCPv6
functionality and better integration with Router Advertisements (RA).
The primary motivation is support for a common ISP deployment scenario
where IPv6 addresses are assigned via SLAAC (from Router Advertisements)
and DHCPv6 is used in stateless/information-only mode to provide DNS
servers and other configuration options. This hybrid RA+DHCPv6 setup is
standard practice for many ISPs but was not supported by udhcpc6, which
treats RA and DHCPv6 as separate, non-integrated mechanisms.
Additional benefits of odhcp6c:
- Better IPv6 Prefix Delegation (IA-PD) support with proper handling
of delegated prefix lifetimes and renewal
- Native integration of RA-provided configuration (DNS servers, routes,
addresses) with DHCPv6-provided options
- Support for stateless DHCPv6 via information-only mode
To verify stateless DHCPv6 integration with SLAAC addresses - the ISP
scenario that motivated this migration, a new test case has been added.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Almost full support for WireGuard
admin@server:/> show interface wg0
name : wg0
type : wireguard
index : 10
mtu : 1420
operational status : up
ipv4 addresses : 10.0.0.1/24 (static)
ipv6 addresses : fd00::1/64 (static)
peers : 2
Peer 1:
public key : ROaZyvJc5DzA2XUAAeTj2YlwDsy2w0lr3t+rWj2imAk=
status : UP
endpoint : 192.168.10.2:51821
latest handshake : 2025-12-09T22:51:38+00:00
transfer tx : 1412 bytes
transfer rx : 1324 bytes
Peer 2:
public key : Om9CPLYdK3l93GauKrq5WXo/gbcD+1CeqFpobRLLkB4=
status : UP
endpoint : 2001:db8:3c4d:20::2:51822
latest handshake : 2025-12-09T22:51:38+00:00
transfer tx : 1812 bytes
transfer rx : 428 bytes
in-octets : 1752
out-octets : 3224
admin@server:/>
This update got pretty messy, since libyang had some
breaking changes. And unfortunatly rousette, libyang-cpp
and sysrepo-cpp has not made any new release yet.
We previously run a draft version of a lot of YANG models,
netconf-server,ssh-server and mode. Now they are released
with minor changes.
infix-meta is an exception, here we had to remove the obsolete
marker of the node and value, since this is no longer allowed in
libyang.
Dump operational datastore to timestamped JSON snapshots every 5 minutes
(in /var/lib/statd/). The operational.json symlink always points to the
latest snapshot.
Implement hierarchical retention policy that keeps the first snapshot of
each time period (hour/day/week/month/year), providing fine-grained recent
history while preventing unbounded disk usage.
This will allow us to plot / track how the system state evolves as
well as give us somewhat fine-grained info in the case of an event,
such as a crash.
Add unit test simulating months of snapshots to verify retention
behavior using a statd stub that only runs the retention code locally
(unit test)
Signed-off-by: Richard Alpe <richard@bit42.se>
Joachim Wiberg