From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Simon Wunderlich Date: Mon, 08 Apr 2019 10:10:27 +0200 Message-ID: <1743828.EEJ9lJHY9g@prime> In-Reply-To: References: <7264236.pZJWJxn9C4@prime> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart3131022.RyoOysFVOU"; micalg="pgp-sha512"; protocol="application/pgp-signature" Subject: Re: [B.A.T.M.A.N.] About making batman-adv mesh network invisible List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Xuebing Wang Cc: b.a.t.m.a.n@lists.open-mesh.org, sven@narfation.org --nextPart3131022.RyoOysFVOU Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Hi Xuebing, I'm not aware of any "proprietary modulation", and I doubt it's possible - = at=20 least not while using an AP at the same time. You can look into 5/10 MHz mo= de=20 or do other quirks if mesh is the only thing running on your module though. Cheers, Simon On Saturday, April 6, 2019 2:06:55 PM CEST Xuebing Wang wrote: > Hi Simon, >=20 > Thanks a lot for your reply. >=20 > With ath9k chip and ath9k driver, do you think it is possible to use > "proprietary modulation" (slightly modified), so wireshark + wlan in > monitor mode won't be able to detect wireless frames batman-adv network > sends? >=20 > Xuebing Wang >=20 > On 2019/4/1 =E4=B8=8B=E5=8D=885:59, Simon Wunderlich wrote: > > Hi Xuebing, > >=20 > > at least for Ad-Hoc mode, you can't hide the SSID without changing the > > kernel driver (mac80211). Encrypting the beacon doesn't help here, as t= he > > SSID needs to be clear text eventually even if management frames get > > encrypted. > >=20 > > Cheers, > >=20 > > Simon > >=20 > > On Saturday, March 30, 2019 11:50:27 AM CEST Xuebing Wang wrote: > >> Hi community, > >>=20 > >> We have batman-adv + OpenWRT + ath9k chip + ath9k driver reliably > >> running for about 2 years. The biggest batman-adv mesh network is with > >> 100+ nodes. > >>=20 > >> As this is a closed network, we have a new requirement which is to make > >> our batman-adv mesh network invisible, although the current SSID is ju= st > >> some meaningless characters. > >>=20 > >> One thought is hidden_ssid. But, it seems hidden_ssid is only supported > >> for AP mode (not IBSS mode). > >>=20 > >> 802.11w does not protect Beacon frame (because it is before four-ways > >> handshake). > >>=20 > >> As this is a closed network, what about encrypting Beacon (maybe all > >> management frames later) using a hard-coded key in wpa_supplicant? > >>=20 > >> Thanks for your help. > >>=20 > >> Xuebing Wang --nextPart3131022.RyoOysFVOU Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE1ilQI7G+y+fdhnrfoSvjmEKSnqEFAlyrAfMACgkQoSvjmEKS nqEqWhAArPLO18THiA+xAObHlbpIT2L+tc2EVJQ9H2rxmlCuogIr33bcHNLQuJP3 M7xqQkuIVwfCT7zyXjWo+fXT3dPJzLMxANRLI1qqOfSukmJ0UVRjPE2QvJAAVNO6 wFxCzl90cUlivCjS8t2ew1R3kEdtLL2Ykmj/+uMBmyKScsV6Imf6PWReqVR83mGl ZHoxVviubOgq9ryYGTOOHtMTUSI2PEtdsRl/GYcpk1SA1OwJQ4aT9u7Gw89DEhkd ij4L7xdK2CKSgkTawFFoxbNv1uwzItKeqX3hE8V/StWOngFeFXGpZ4NLLIGyZg08 sa3T+Ue5gqOelLJLK/qtKIJcP8FRdIc3k0kykb6Y88PmS7gbxc/XmPRDwShrmkM6 gYEXh8UaVyxBZNJ9faTj+XTcdnmQODon3/GoXkiHVHwLO1ADVFWAPWoD3qJHDKqu swhfV4mMSLKNlt2VcrSA8wWgDNYa7qcTDxnQFrdX4ESpIPxDB4rqawrwMJzSvFnS XM0j7eKdXRzVkU7JC31VzW2CRQ3WBXlM/kjngd2Cbrhc0LYpbOIQZ892rx+q06lH A18cMZPapS8YZC4N8FsI26upQiqp41BCrIAG0EgAZbepMppBvtoqRhty1OH3tA0Y iPPiukFMj0bgo8AedKaW9FvIBWI389qdrl+epcRSM3YHylVixCM= =E8ty -----END PGP SIGNATURE----- --nextPart3131022.RyoOysFVOU--