src/sys/dev/wtap/plugins, branch release/12.3.0

sys/dev: further adoption of SPDX licensing ID tags.

2017-11-27T14:52:40Z

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.

etc: minor spelling fixes.

2016-05-02T16:47:28Z

Mostly comments but also some user-visible strings. MFC after: 2 weeks

wtap: do not include when is already included

2015-12-13T20:53:51Z

Approved by: adrian (mentor) Differential Revision: https://reviews.freebsd.org/D4536

Mechanically substitute flags from historic mbuf allocator with

2012-12-04T09:32:43Z

malloc(9) flags in sys/dev.

Introduce wtap, the beginnings of a net80211 wlan simulator.

2012-01-11T17:41:14Z

This introduces: * a basic wtap interface * a HAL, which implements an abstraction layer for implementing different device behavious; * A visibility plugin, which allows for control over which nodes see other nodes (useful for mesh work.) It doesn't yet implement sta/adhoc/hostap modes but these are quite feasible to implement. Monthadar uses it to do 802.11s mesh verification. The userland tools will be committed in a follow-up commit. Submitted by: Monthadar Al Jaberi