From owner-freebsd-bluetooth@FreeBSD.ORG Tue May 13 16:48:08 2008 Return-Path: Delivered-To: freebsd-bluetooth@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C6C9F106564A for ; Tue, 13 May 2008 16:48:08 +0000 (UTC) (envelope-from maksim.yevmenkin@gmail.com) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.155]) by mx1.freebsd.org (Postfix) with ESMTP id 0D0E48FC0A for ; Tue, 13 May 2008 16:48:07 +0000 (UTC) (envelope-from maksim.yevmenkin@gmail.com) Received: by fg-out-1718.google.com with SMTP id l26so4645005fgb.35 for ; Tue, 13 May 2008 09:48:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; bh=jpY9NJQbFWAef2P0P3LVqyNNHrgxbGk9FNKEKsD/hXo=; b=dae/pMFakAkxD52m66c9138+6rt4EUTOYnKo/Kh5aDGfpwoJKTMTzynOEyH+T9NeMKNM4+nac8eCAPUgYAvx7LqOpfRb0vT00qT+4/37j+0tgP9PDqkpkS69QcBnkvPvTPd8OKyd5+9k1aN4FejUDPvfaGxDYKFFf6PrvYJZNj8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=K/JeMokG3/pYjpBj3kJdefJMcxIYqhHHHBdDiL7H+UgdetOXq2MxZKaPqasMaEeqWQCVbIXrjy4w11JDY9ojcQFzK98I3PAT4M3wHfi+yOM36+ZWCCKN4TTudweHjUc66qyMGLLsJsO6XqoU5oH1DE9ao7wQMBXg4XixPuSBZsM= Received: by 10.86.94.11 with SMTP id r11mr38947fgb.0.1210697286739; Tue, 13 May 2008 09:48:06 -0700 (PDT) Received: by 10.86.66.5 with HTTP; Tue, 13 May 2008 09:48:06 -0700 (PDT) Message-ID: Date: Tue, 13 May 2008 09:48:06 -0700 From: "Maksim Yevmenkin" To: "Helge Oldach" In-Reply-To: <200805131552.m4DFqQOW031043@sep.oldach.net> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_8614_29769232.1210697286687" References: <200805131552.m4DFqQOW031043@sep.oldach.net> Cc: freebsd-bluetooth@freebsd.org, rizzo@iet.unipi.it Subject: Re: any reason to require -t dev in rfcomm_sppd -S ? X-BeenThere: freebsd-bluetooth@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Using Bluetooth in FreeBSD environments List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 May 2008 16:48:08 -0000 ------=_Part_8614_29769232.1210697286687 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline On Tue, May 13, 2008 at 8:52 AM, Helge Oldach wrote: > Maksim Yevmenkin wrote on Mon, 21 Apr 2008 20:51:55 +0200 (CEST): >> On Thu, Apr 17, 2008 at 11:06 AM, Luigi Rizzo wrote: >> > >> > On Thu, Apr 17, 2008 at 10:39:16AM -0700, Maksim Yevmenkin wrote: >> > > On Thu, Apr 17, 2008 at 4:56 AM, Luigi Rizzo wrote: >> > > > hi, is there any compelling reason to require >> > > > the '-t device' option in rfcomm_sppd when used in server mode ? >> > > >> > > technically, no. just need to be careful who is going to setup tty >> > > properly, for example make it 'raw' as rfcomm_sppd(1) does with pty. >> > > rfcomm_sppd(1) already can be used inside ppp(8), i.e. one can do >> > > something like >> > > >> > > set device '!/usr/bin/rfcomm_sppd -a mobile -c sp' >> > > >> > > in /etc/ppp.conf and it will work just fine. rfcomm_sppd(1) does not >> > > do anything to tty when running using stdin/stdout in client mode. the >> > > assumption here is that whatever calls rfcomm_sppd(1) will setup >> > > tty/fd properly. >> > > >> > > > I tried to disable the one-line that checks it in the code, and >> > > > things seem to work - and this makes the program very convenient >> > > > to use in a pipeline, e.g. to receive data from a remote bluetooth >> > > > device. >> > > >> > > right. can you please provide usage example? i certainly would not >> > > object to making the change you are requesting. >> > >> > sure - i need to listen to a portable ElectroCardioGram (ECG) device >> > which talks to the external world through bluetooth. The device >> > must have some kind of modem inside - its console port says it is >> > issuing commands such as >> > >> > AT+ZV SPPConnect XXX >> > ... >> > >> > where XXX is the (manually configured) address of the bluetooth >> > dongle on the PC. On the FreeBSD side, running >> > "rfcom_sppd -a YYY" (without the -S option, YYY is the ECG address) >> > sometimes connects, but most of the times doesnt. >> > >> > With a patched rfcomm_sppp i can just do >> > >> > rfcomm_sppd -S -a YYY | my_data_logger >> > >> > rather than having to manually select an available tty/pty pair >> > >> > Don't know how many devices behave in this way, but a >> > search for "AT+ZV SPPConnect" gives several matches with >> > documentation for embedded hardware. >> >> ok, please try the attached patch and see if it works for you. i >> basically removed the check for tty name in server mode, bind to >> "wildcard" channel instead of generating one based on pid (if channel >> was not specified) and fixed a possible problem with service >> registration in server mode (i.e. always register serial port >> service). > > Your patch applies cleanly, but I just get > > # rfcomm_sppd -S > rfcomm_sppd: Could not get socket name > # > > It seems that getsockbyname fails. What is the reason for that anyway? > > BTW, Luigi's pipe application is interesting, but what about true > two-way communcation? For instance, I would like to have something like > > # rfcomm_sppd -S -c sp -a myPalm -x "coldsync -t serial -s -md" > > ...meaning: Upon receipt of a SP connection request from myPalm we would > fork coldsync to synchronize the Palm (just like USB or serial sync, but > now bluetooth). > > This could even go into /etc/ttys, forking a fresh rfcomm_sppd after the > request terminates. > > I'm currently doing this in two separate steps, first starting > rfcomm_sppd with some arbitrary pty, then coldsync talking to that pty. > So yes, this definitely works. well, there is a problem with my previous patch. please try the attached updated patch. thanks, max ------=_Part_8614_29769232.1210697286687 Content-Type: text/plain; name=rfcomm_sppd.patch.txt Content-Transfer-Encoding: base64 X-Attachment-Id: f_fg6pw4500 Content-Disposition: attachment; filename=rfcomm_sppd.patch.txt SW5kZXg6IHJmY29tbV9zcHBkLjEKPT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 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