[src-draft/trunk]: src/sbin/ifconfig Try to document the new ieee 802.11 spec...

[Martin Husemann <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src-all/rev/34676e78fac6
branches:  trunk
changeset: 990994:34676e78fac6
user:      Martin Husemann <martin%NetBSD.org@localhost>
date:      Sun Jun 06 14:47:52 2021 +0200

description:
Try to document the new ieee 802.11 specific clone commands

diffstat:

 sbin/ifconfig/ifconfig.8 |  82 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 82 insertions(+), 0 deletions(-)

diffs (92 lines):

diff -r a4203dfaf475 -r 34676e78fac6 sbin/ifconfig/ifconfig.8
--- a/sbin/ifconfig/ifconfig.8  Sun Jun 06 14:44:56 2021 +0200
+++ b/sbin/ifconfig/ifconfig.8  Sun Jun 06 14:47:52 2021 +0200
@@ -500,6 +500,88 @@
 .Cm cookie .
 .It Cm create
 Create the specified network pseudo-device.
+.Pp
+For
+.Em IEEE 802.11
+devices
+.Pq e.g. wlan0 ,
+the create operation takes additional arguments
+specifying operation mode and physical device for the cloned device:
+.Bl -tag -width indent
+.It Cm wlandev Ar device
+Use
+.Ar device
+as the parent for the cloned device.
+The available physical devices can be listed with:
+.Dl sysctl net.wlan.devices
+.It Cm wlanmode Ar mode
+Specify the operating mode for this cloned device.
+.Ar mode
+is one of
+.Cm sta ,
+.Cm ahdemo
+(or
+.Cm adhoc-demo ) , 
+.Cm ibss
+(or
+.Cm adhoc ) ,
+.Cm ap
+(or
+.Cm hostap ) ,   
+.Cm wds ,
+.Cm tdma ,
+.Cm mesh ,
+and
+.Cm monitor .
+The operating mode of a cloned interface cannot be changed.
+The
+.Cm tdma
+mode is actually implemented as an
+.Cm adhoc-demo
+interface with special properties.
+.It Cm wlanbssid Ar bssid
+The 802.11 mac address to use for the bssid.
+This must be specified at create time for a legacy
+.Cm wds
+device.
+.It Cm wlanaddr Ar address
+The local mac address.
+If this is not specified then a mac address will automatically be assigned
+to the cloned device. 
+Typically this address is the same as the address of the parent device
+but if the
+.Cm bssid 
+parameter is specified then the driver will craft a unique address for
+the device (if supported).
+.It Cm wdslegacy
+Mark a  
+.Cm wds  
+device as operating in ``legacy mode''.
+Legacy
+.Cm wds
+devices have a fixed peer relationship and do not, for example, roam
+if their peer stops communicating.
+For completeness a Dynamic WDS (DWDS) interface may marked as
+.Fl wdslegacy .
+.It Cm bssid
+Request a unique local mac address for the cloned device.
+This is only possible if the device supports multiple mac addresses.
+To force use of the parent's mac address use
+.Fl bssid .
+.It Cm beacons
+Mark the cloned interface as depending on hardware support to
+track received beacons.
+To have beacons tracked in software use
+.Fl beacons .
+For
+.Cm hostap
+mode
+.Fl beacons
+can also be used to indicate no beacons should
+be transmitted; this can be useful when creating a WDS configuration but
+.Cm wds
+interfaces can only be created as companions to an access point.
+.El
 .It Cm destroy
 Destroy the specified network pseudo-device.
 .It Cm pltime Ar n