src-test2/usr.sbin/rtadvd, branch master

Remove obsolete compatibility code from rtadvd.

2019-07-17T16:50:53Z

MFC after: 1 week

Retry upon NET_RT_IFLIST sysctl failure.

2019-04-30T14:44:39Z

Port the logic used by getifaddrs(3) to handle the case where NET_RT_IFLIST returns ENOMEM, which can occur if the list size changes between the buffer allocation and sysctl read. PR: 195191 Submitted by: Guy Yur (original version) MFC after: 1 week

Update the "flag" for draft-ietf-6man-ipv6only-flag.

2018-11-03T18:03:24Z

Having the flag named "6" can possibly be a problem for configurations where parsing strings and numbers can produce ambivalent results. Rename the "6" flag to the "S"ix (or Silence-IPv4) flag.

Initial implementation of draft-ietf-6man-ipv6only-flag.

2018-10-30T20:08:48Z

This change defines the RA "6" (IPv6-Only) flag which routers may advertise, kernel logic to check if all routers on a link have the flag set and accordingly update a per-interface flag. If all routers agree that it is an IPv6-only link, ether_output_frame(), based on the interface flag, will filter out all ETHERTYPE_IP/ARP frames, drop them, and return EAFNOSUPPORT to upper layers. The change also updates ndp to show the "6" flag, ifconfig to display the IPV6_ONLY nd6 flag if set, and rtadvd to allow announcing the flag. Further changes to tcpdump (contrib code) are availble and will be upstreamed. Tested the code (slightly earlier version) with 2 FreeBSD IPv6 routers, a FreeBSD laptop on ethernet as well as wifi, and with Win10 and OSX clients (which did not fall over with the "6" flag set but not understood). We may also want to (a) implement and RX filter, and (b) over time enahnce user space to, say, stop dhclient from running when the interface flag is set. Also we might want to start IPv6 before IPv4 in the future. All the code is hidden under the EXPERIMENTAL option and not compiled by default as the draft is a work-in-progress and we cannot rely on the fact that IANA will assign the bits as requested by the draft and hence they may change. Dear 6man, you have running code. Discussed with: Bob Hinden, Brian E Carpenter

Reduce pollution.

2018-05-11T00:01:43Z

While includes unconditionally, it is only actually used in code which is conditional on _KERNEL. Make the #include itself conditional as well, and fix userland code that uses for other purposes but relied on to bring it in. MFC after: 1 week

various: general adoption of SPDX licensing ID tags.

2017-11-27T15:37:16Z

Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.

General further adoption of SPDX licensing ID tags.

2017-11-20T19:49:47Z

Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.

DIRDEPS_BUILD: Update dependencies.

2017-10-31T00:07:04Z

Renumber copyright clause 4

2017-02-28T23:42:47Z

Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann Pull Request: https://github.com/freebsd/freebsd/pull/96

rtadvd(8): double assignment.

2017-02-23T15:10:46Z

Remove doubtful initialization since the value will be overwritten immediately afterwards. Found with: coccinelle (da.cocci)