Package: dhcpcd Version: 1:9.4.1-24~deb12u4 Severity: normal X-Debbugs-Cc: d...@darkboxed.org
Hi Martin, I have the following RAs on my network including multiple DNSSL options. According to [RFC 8106 section 5.2] > If it is desirable to have different Lifetime values, multiple DNSSL > options can be used. [RFC 8106]: https://datatracker.ietf.org/doc/html/rfc8106#section-5.2 So this should be supported. However dhcpcd doesn't merge the lists only installing the first one in /etc/resolv.conf: search rack.dxld.at dyn.dxld.at pub.dxld.at I tested against rdnssd (after undoing dhcpcd's sysctl mangling [#266] another issue we'll have to deal with later) and it get's it right. Looking at /var/run/rdnssd/resolv.conf: search rack.dxld.at dyn.dxld.at pub.dxld.at inn.dxld.at [#266]: https://github.com/NetworkConfiguration/dhcpcd/issues/266 Except... I actually wanted a different order, but we can't have everything as that seems to be RFC compliant :-) > 6.3. Synchronization between DNS Search List and Resolver Repository > > When an IPv6 host receives the information of multiple DNSSL domain > names within a network through an RA message with DNSSL option(s), it > stores the DNSSL domain names (in order) in both the DNSSL and the > Resolver Repository. RAs look like this: ``` # rdisc6 br0 Soliciting ff02::2 (ff02::2) on br0... Hop limit : 64 ( 0x40) Stateful address conf. : Yes Stateful other conf. : No Mobile home agent : No Router preference : medium Neighbor discovery proxy : No Router lifetime : 1800 (0x00000708) seconds Reachable time : unspecified (0x00000000) Retransmit time : unspecified (0x00000000) MTU : 1500 bytes (valid) Prefix : 2001:678:4d8::/64 On-link : Yes Autonomous address conf.: Yes Valid time : 86400 (0x00015180) seconds Pref. time : 14400 (0x00003840) seconds Recursive DNS server : 2001:678:4d8:acdd::1 DNS server lifetime : 1800 (0x00000708) seconds DNS search list : rack.dxld.at dyn.dxld.at pub.dxld.at DNS search list lifetime: 1800 (0x00000708) seconds DNS search list : inn.dxld.at DNS search list lifetime: 1800 (0x00000708) seconds from fe80::debb ``` I'll test this against dhcpcd from unstable later. --Daniel -- System Information: Debian Release: 12.9 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable-debug'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.1.0-18-amd64 (SMP w/32 CPU threads; PREEMPT) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages dhcpcd depends on: ii dhcpcd-base 9.4.1-24~deb12u4 ii lsb-base 11.6 ii sysvinit-utils [lsb-base] 3.06-4 dhcpcd recommends no packages. Versions of packages dhcpcd suggests: pn dhcpcd-gtk <none> -- no debconf information
