Date: Thu, 11 Feb 2016 22:10:55 +0000 (UTC) From: Devin Teske <dteske@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r295548 - head/share/examples/jails Message-ID: <201602112210.u1BMAtgc029385@repo.freebsd.org>
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Author: dteske Date: Thu Feb 11 22:10:54 2016 New Revision: 295548 URL: https://svnweb.freebsd.org/changeset/base/295548 Log: Add support for bridging iwn(4) based wlan(4) Documented in iwn(4), "Only one virtual interface may be configured at any time." However, netgraph with a cloned MAC address is able to communicate over an ng_eiface attached to an ng_bridge linked to the wlan(4) interface. While here, introduce syntax to specify the MAC address is to be cloned if the named interface begins with equals [=]. Modified: head/share/examples/jails/jng Modified: head/share/examples/jails/jng ============================================================================== --- head/share/examples/jails/jng Thu Feb 11 21:32:23 2016 (r295547) +++ head/share/examples/jails/jng Thu Feb 11 22:10:54 2016 (r295548) @@ -265,7 +265,7 @@ mustberoot_to_continue() fi } -jng_bridge_usage="bridge [-b BRIDGE_NAME] NAME interface0 [interface1 ...]" +jng_bridge_usage="bridge [-b BRIDGE_NAME] NAME [=]iface0 [[=]iface1 ...]" jng_bridge_descr="Create ng0_NAME [ng1_NAME ...]" jng_bridge() { @@ -286,10 +286,15 @@ jng_bridge() mustberoot_to_continue - local iface eiface eiface_devid - local new num quad i=0 + local iface parent eiface eiface_devid + local new clone_mac num quad i=0 for iface in $*; do + clone_mac= + case "$iface" in + =*) iface=${iface#=} clone_mac=1 ;; + esac + # 0. Make sure the interface doesn't exist already eiface=ng${i}_$name ngctl msg "$eiface:" getifname > /dev/null 2>&1 && continue @@ -347,7 +352,23 @@ jng_bridge() # 6. Set the MAC address of the new interface using a sensible # algorithm to prevent conflicts on the network. # - derive_mac $iface "$name" eiface_devid + case "$iface" in + wlan[0-9]*) + parent=$( sysctl -n net.wlan.${iface#wlan}.%parent ) + case "$parent" in + iwn[0-9]*) + # iwn(4) supports only 1 virtual net at a time + # NB: Cloning MAC allows new interface to work + clone_mac=1 ;; + esac + esac + if [ "$clone_mac" ]; then + eiface_devid=$( + ifconfig $iface ether | awk '/ether/,$0=$2' + ) + else + derive_mac $iface "$name" eiface_devid + fi ifconfig $eiface ether $eiface_devid i=$(( $i + 1 )) # on to next ng{i}_name
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