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Code Issues Releases Activity

Add workaround for brain damaged cell phones

Browse Source 
PR:		bin/67906
This commit is contained in:
Maksim Yevmenkin 2004-07-27 22:40:42 +00:00
parent 3dfe213e61
commit 1985a3a39d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=132711
2 changed files with 62 additions and 3 deletions
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19
usr.sbin/bluetooth/rfcomm_pppd/rfcomm_pppd.8
View File

@ -41,7 +41,7 @@
.Fl u Ar N
.Nm
.Fl s
.Op Fl dh
.Op Fl dhS
.Op Fl a Ar BD_ADDR
.Fl C Ar channel
.Fl l Ar label
@ -126,6 +126,23 @@ Display usage message and exit.
In both client and server modes, this required option specifies which
.Xr ppp 8
label will be used.
.It Fl S
In the server mode register the Serial Port (SP) service in addition to the
LAN Access Using PPP (LAN) service.
It appears that some cell phones are using so called
.Dq callback mechanism .
In this scenario the user is trying to connect his cell phone to the Internet,
and, user's host computer is acting as the gateway server.
It seems that it is not possible to tell the phone to just connect and start
using the LAN service.
Instead the user's host computer must
.Dq jump start
the phone by connecting to the phone's SP service.
What happens next is the phone kills the existing connection and opens another
connection back to the user's host computer.
The phone really wants to use LAN service, but for whatever reason it looks
for the SP service on the user's host computer.
This brain damaged behavior was reported for Nokia 6600 and Sony/Ericsson P900.
.It Fl s
Act as an RFCOMM server.
.It Fl u Ar N

46
usr.sbin/bluetooth/rfcomm_pppd/rfcomm_pppd.c
View File

@ -62,7 +62,7 @@ main(int argc, char *argv[])
struct sockaddr_rfcomm sock_addr;
char *label = NULL, *unit = NULL, *ep = NULL;
bdaddr_t addr;
int s, channel, detach, server, service;
int s, channel, detach, server, service, regsp;
pid_t pid;
memcpy(&addr, NG_HCI_BDADDR_ANY, sizeof(addr));
@ -70,9 +70,10 @@ main(int argc, char *argv[])
detach = 1;
server = 0;
service = 0;
regsp = 0;
/* Parse command line arguments */
while ((s = getopt(argc, argv, "a:cC:dhl:su:")) != -1) {
while ((s = getopt(argc, argv, "a:cC:dhl:sSu:")) != -1) {
switch (s) {
case 'a': /* BDADDR */
if (!bt_aton(optarg, &addr)) {
@ -117,6 +118,10 @@ main(int argc, char *argv[])
server = 1;
break;
case 'S': /* Register SP service as well as LAN service */
regsp = 1;
break;
case 'u': /* PPP -unit option */
strtoul(optarg, &ep, 10);
if (*ep != '\0')
@ -258,6 +263,42 @@ main(int argc, char *argv[])
strerror(sdp_error(ss)), sdp_error(ss));
exit(1);
}
/*
* Register SP (Serial Port) service on the same RFCOMM channel
* if requested. It appears that some cell phones are using so
* called "callback mechanism". In this scenario user is trying
* to connect his cell phone to the Internet, and, user's host
* computer is acting as the gateway server. It seems that it
* is not possible to tell the phone to just connect and start
* using the LAN service. Instead the user's host computer must
* "jump start" the phone by connecting to the phone's SP
* service. What happens next is the phone kills the existing
* connection and opens another connection back to the user's
* host computer. The phone really wants to use LAN service,
* but for whatever reason it looks for SP service on the
* user's host computer. This brain damaged behavior was
* reported for Nokia 6600 and Sony/Ericsson P900. Both phones
* are Symbian-based phones. Perhaps this is a Symbian problem?
*/
if (regsp) {
sdp_sp_profile_t sp;
memset(&sp, 0, sizeof(sp));
sp.server_channel = channel;
if (sdp_register_service(ss,
SDP_SERVICE_CLASS_SERIAL_PORT,
&addr, (void *) &sp, sizeof(sp),
NULL) != 0) {
syslog(LOG_ERR, "Unable to register SP " \
"service with local SDP daemon. " \
"%s (%d)", strerror(sdp_error(ss)),
sdp_error(ss));
exit(1);
}
}
for (done = 0; !done; ) {
int len = sizeof(sock_addr);
@ -399,6 +440,7 @@ usage(void)
"\t-d Run in foreground\n" \
"\t-l label Use PPP label (required)\n" \
"\t-s Act as a server\n" \
"\t-S Register Serial Port service (server mode only)\n" \
"\t-u N Tell PPP to operate on /dev/tunN (client mode only)\n" \
"\t-h Display this message\n", RFCOMM_PPPD);