Date: Thu, 6 Mar 2014 11:47:13 -0800 From: <dteske@FreeBSD.org> To: "'Eugene Grosbein'" <eugen@grosbein.net>, "'Joe Nosay'" <superbisquit@gmail.com> Cc: 'FreeBSD Hackers' <freebsd-hackers@freebsd.org> Subject: RE: How do I create a cloned interface when there is no static connection? Message-ID: <19cd01cf3974$dffa5bf0$9fef13d0$@FreeBSD.org> In-Reply-To: <5318B836.7040301@grosbein.net> References: <CA%2BWntOsoNMF5rd=j2qbtnVv6-6709R7JqPH7j6vzwkqwrA_=GQ@mail.gmail.com> <53181410.1030107@freebsd.org> <CA%2BWntOtphdnTRdks%2Bwe1Nx68CXjaz_u1S1JFm%2BfdKc7X6Qro%2BA@mail.gmail.com> <5318B836.7040301@grosbein.net>
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> -----Original Message-----
> From: Eugene Grosbein [mailto:eugen@grosbein.net]
> Sent: Thursday, March 6, 2014 10:03 AM
> To: Joe Nosay
> Cc: FreeBSD Hackers
> Subject: Re: How do I create a cloned interface when there is no static
> connection?
>
> On 07.03.2014 00:39, Joe Nosay wrote:
>
> > I'll need a dummy interface inside of the that can be bridged to
> > wlan0 outside of the jail. Normal jail with aliases.
>
> Try epair(4) and give one part of pair to jail and bridge another part
with
> wlan0.
>
Never tried bridging a wlan with netgraph, but I wonder if the method I use
for bridging Ethernet with netgraph would work...
Using the ngctl command to create an ng_bridge and then multiple ng_eiface
devices that you can be shoved into the jail.
kldload ng_ether
kldload ng_bridge
kldload ng_eiface
ngctl
+ mkpeer {IFACE}: bridge lower link0
+ connect {IFACE}: {IFACE}:lower upper link1
+ name {IFACE}:lower {IFACE}bridge
+ quit
ifconifg {IFACE} up
ngctl
+ msg {IFACE}: setpromisc 1
+ msg {IFACE}: setautosrc 0
+ mkpeer {IFACE}:lower eiface link{N} ether
+ name {IFACE}bridge:link{N}
+ show -n {IFACE}bridge:
Name: ngeth0 Type: eiface ID: XXXXXXXX Num
hooks: N
+ name {IFACE}bridge:link{N} {NEWIFACE}
ifconfig ngeth0 name {NEWNAME}
ifconfig {NEWNAME} vnet {JID}
Taking care to replace the following from above:
{IFACE} - the name of the interface you want to bridge (eg, em0)
{N} - link number (starts at 2; increments by-one for each new eiface)
{NEWIFACE} - the name of the new eiface (ngethN) device to create
{JID} - the jail ID of the jail you want to shove the interface into
Of course, never tried this with WiFi.
--
Devin
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