Return-Path: Subject: Re: [Bluez-devel] can bluez dynamically allocate l2cap psm? From: Stephen Crane To: albert@csail.mit.edu Cc: bluez-devel@lists.sourceforge.net In-Reply-To: References: Content-Type: text/plain Message-Id: <1084353460.2834.6.camel@baroque.rococosoft.com> Mime-Version: 1.0 Sender: bluez-devel-admin@lists.sourceforge.net Errors-To: bluez-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Date: Wed, 12 May 2004 10:17:40 +0100 Hi Albert, At the moment you have to cycle through the available PSMs trying to bind to each one. BlueZ sockets don't yet support binding to PSM_ANY. Steve On Wed, 2004-05-12 at 02:17, Albert Huang wrote: > I want a simple client/server that operates as follows. > > server listens for l2cap connections. accepts a connection, does > something with it. > > client discovers server by entering inquiry mode and then checking SDP > records for service id of the server. > > I don't want to hard-code the l2cap psm, as that seems like it defeats > half the point of SDP, but I can't figure out how to request a dynamic > psm. I want to be able to do somethiing like this: > > int s; > struct sockaddr_l2 s_addr; > s = socket(PF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP); > > s_addr.l2_family = AF_BLUETOOTH; > bacopy( &s_addr.l2_bdaddr, BDADDR_ANY ); > s_addr.l2_psm = L2CAP_PSM_ANY; > > bind(s, (struct sockaddr *)&s_addr, sizeof(s_addr) ); > > struct sockaddr_l2 local_addr; > struct socklen_t addr_len = sizeof(local_addr); > getsockname( s, (struct sockaddr *)&local_addr, &addr_len); > int psm = btohs( local_addr.l2_psm ); > > // register service with SDP using dynamic psm > > > Is this possible with bluez? Or do I have to do the ugly thing and > pick an arbitrary psm? > > thanks! > -albert > > > ------------------------------------------------------- > This SF.Net email is sponsored by Sleepycat Software > Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver > higher performing products faster, at low TCO. > http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 > _______________________________________________ > Bluez-devel mailing list > Bluez-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluez-devel -- Stephen Crane, Rococo Software Ltd. http://www.rococosoft.com steve.crane@rococosoft.com +353-1-6601315 (ext 209) ------------------------------------------------------- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel