Date: Wed, 1 Dec 2010 16:22:21 +0800 From: Adrian Chadd <adrian@freebsd.org> To: Monthadar Al Jaberi <monthadar@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: Bridging mesh with wired not working? Message-ID: <AANLkTinsiFeOGiBZHJf5rhfp83XCcGb6WSf6UxntZjYy@mail.gmail.com> In-Reply-To: <AANLkTik6E74mcjEMde3MRnKF9PtHqp=eAe-xrZ2hJAW_@mail.gmail.com> References: <AANLkTimvjuvYJLbXgMsX%2BsRjGiNeXVFL%2BZZwf3W30oOn@mail.gmail.com> <AANLkTikBv%2BBSQbr0MfzkqhADC-twHsc=WNKTCLOU8x2=@mail.gmail.com> <AANLkTik6E74mcjEMde3MRnKF9PtHqp=eAe-xrZ2hJAW_@mail.gmail.com>
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The mesh code is really a proof of concept. It definitely needs
someone to actually sit down and use it, then document all of the
things that aren't working.
I tried it for about 5 minutes and discovered that although it seems
to basically work, MAC addresses migrating from wired<->wireless
didn't migrate destinations in the mesh table, so the mesh network
would treat it incorrectly. I ran out of time (my spare time is
focused on understanding and implementing Atheros 11n at the moment)
so I had to stop.
If you'd like to be the person who sits down and tries to use the
meshing stuff then please, by all means. :-)
Adrian
On 1 December 2010 15:48, Monthadar Al Jaberi <monthadar@gmail.com> wrote:
> On Wed, Dec 1, 2010 at 5:02 AM, Adrian Chadd <adrian@freebsd.org> wrote:
>> I believe that's supposed to work. :-)
>
> Did you try it? on current? I am running 201010 Current. From the code
> I see some comments like "/* XXX add support for proxied addresses
> */". For me it looks like the code for proxy is half done, if I may
> say so myself :P
>
> see this method in net80211/ieee80211_mesh.c
> /*
> =A0* Iterate the routing table and locate the next hop.
> =A0*/
> static struct ieee80211_node *
> mesh_find_txnode(struct ieee80211vap *vap,
> =A0 =A0const uint8_t dest[IEEE80211_ADDR_LEN])
> {
> ...
> if ((rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID) =3D=3D 0 ||
> =A0 =A0 =A0 =A0 =A0 =A0(rt->rt_flags & IEEE80211_MESHRT_FLAGS_PROXY)) {
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_MESH=
, dest,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0"%s: !valid or proxy, flags 0x%x",=
__func__, rt->rt_flags);
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/* XXX stat */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return NULL;
> }
> ...
> }
>
> it stops if the dest node is a proxy. Then after failing in forwarding
> it goes out (=3D=3D discard frame?), I put a print message there to verif=
y
> that it goes out:
> static int
> mesh_input(struct ieee80211_node *ni, struct mbuf *m, int rssi, int nf)
> {
> ...
> /*
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 * Potentially forward packet. =A0See tabl=
e s36 (p140)
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 * for the rules. =A0XXX tap fwd'd packets=
not for us?
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (dir =3D=3D IEEE80211_FC1_DIR_FROMDS ||
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0!mesh_isucastforme(vap, wh, mc)) {
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0mesh_forward(vap, m, mc);
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (dir =3D=3D IEEE80211_F=
C1_DIR_DSTODS)
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out;
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/* NB: fall thru to delive=
r mcast frames locally */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
> ...
> }
>
> I am puzzeled... everyone says it works, did I miss something?! :P
>
>
> br,
>
>>
>>
>> adrian
>>
>> On 30 November 2010 15:38, Monthadar Al Jaberi <monthadar@gmail.com> wro=
te:
>>> Hi,
>>>
>>> Can anyone confirm that bridging a mesh with a wired interface is not
>>> working? I want to make sure that it is not a problem from my side.
>>>
>>> When I ping from outside the mesh I get: "!valid or proxy" and "frame
>>> not fwd'd, no path" from the debug information.
>>>
>>> My setup is simple
>>>
>>> STA --- MPP )) -- (( MP
>>>
>>> STA: Ubuntu PC
>>> MPP: RSPRO mesh portal bridging wired and mesh
>>> MP: RSPRO mesh point
>>>
>>> ifconfig for MPP:
>>> arge0: flags=3D8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>
>>> metric 0 mtu 1500
>>> =A0 =A0 =A0 =A0options=3D80000<LINKSTATE>
>>> =A0 =A0 =A0 =A0ether XX:XX:XX:XX:XX:XX
>>> =A0 =A0 =A0 =A0media: Ethernet autoselect (100baseTX <full-duplex>)
>>> =A0 =A0 =A0 =A0status: active
>>> wlan0: flags=3D8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>
>>> metric 0 mtu 1500
>>> =A0 =A0 =A0 =A0ether YY:YY:YY:YY:YY:YY
>>> =A0 =A0 =A0 =A0inet 192.168.1.91 netmask 0xffffff00 broadcast 192.168.1=
.255
>>> =A0 =A0 =A0 =A0media: IEEE 802.11 Wireless Ethernet autoselect mode 11g=
<mesh>
>>> =A0 =A0 =A0 =A0status: running
>>> =A0 =A0 =A0 =A0meshid monty channel 1 (2412 MHz 11g) bssid 00:15:6d:67:=
21:8d
>>> =A0 =A0 =A0 =A0country US ecm authmode OPEN privacy OFF txpower 20 scan=
valid 60
>>> =A0 =A0 =A0 =A0protmode CTS wme burst meshttl 31 meshpeering meshforwar=
d
>>> =A0 =A0 =A0 =A0meshmetric AIRTIME meshpath HWMP hwmprootmode DISABLED h=
wmpmaxhops 31
>>> bridge0: flags=3D28943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,P=
PROMISC>
>>> metric 0 mtu 1500
>>> =A0 =A0 =A0 =A0ether ZZ:ZZ:ZZ:ZZ:ZZ:ZZ
>>> =A0 =A0 =A0 =A0id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay=
15
>>> =A0 =A0 =A0 =A0maxage 20 holdcnt 6 proto rstp maxaddr 100 timeout 1200
>>> =A0 =A0 =A0 =A0root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
>>> =A0 =A0 =A0 =A0member: arge0 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUT=
OPTP>
>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ifmaxaddr 0 port 4 priority 128 path cos=
t 200000
>>> =A0 =A0 =A0 =A0member: wlan0 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUT=
OPTP>
>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ifmaxaddr 0 port 7 priority 128 path cos=
t 370370
>>>
>>> br,
>>> --
>>> //Monthadar Al Jaberi
>>> _______________________________________________
>>> freebsd-net@freebsd.org mailing list
>>> http://lists.freebsd.org/mailman/listinfo/freebsd-net
>>> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>>>
>>
>
>
>
> --
> //Monthadar Al Jaberi
> _______________________________________________
> freebsd-net@freebsd.org mailing list
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