Subject: [Bluez-devel] L2CAP chnnel


Hellow all.

I`m try to write application that send and recive data over L2CAP channel, between PC and my custom arm board. I have a next problem. I dont understand haw create a socket, if PC must inquirying and connect to my board. Device must remain slave in piconnect.
I`m try run next simpl daemon on my custom arm board:

struct sockaddr_l2 L2capAddr;
int iSockFd;
iSockFd = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_L2CAP);
if (iSockFd == -1) {
TRACE1("opening L2CAP socket: %s", strerror(errno));
return -1;
};
L2capAddr.l2_bdaddr = *BDADDR_ANY;
/*L2capAddr.l2_bdaddr = *strtoba( strdup("78:A1:1F:96:A0:00"));*/
L2capAddr.l2_family = AF_BLUETOOTH;
L2capAddr.l2_psm = htobs(SDP_PSM); // I sigth this valuer in Tsimbal code
if(0 > bind(iSockFd, (struct sockaddr *)&L2capAddr, sizeof(L2capAddr)))
{
TRACE1("binding L2CAP socket: %s", strerror(errno));
return -1;
}
incoming = listen(iSockFd, ACTIVE_CONN_MAX);

But ACL connection don`t establishing. The hcidump on board give next chat

> HCI Event: Connect Request (0x04) plen 10
78 A1 1F 96 A0 00 04 5F 00 01
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
78 A1 1F 96 A0 00 01
> HCI Event: Command Status (0x0f) plen 4
00 01 09 04
> HCI Event: Link Key Request (0x17) plen 6
78 A1 1F 96 A0 00
< HCI Command: Link Key Request Negative Reply (0x01|0x000c) plen 6
78 A1 1F 96 A0 00
> HCI Event: Command Complete (0x0e) plen 10
01 0C 04 00 78 A1 1F 96 A0 00
> HCI Event: PIN Code Request (0x16) plen 6
78 A1 1F 96 A0 00
< HCI Command: PIN Code Request Reply (0x01|0x000d) plen 23
78 A1 1F 96 A0 00 10 xx xx xx xx xx xx xx xx xx xx xx xx xx
xx xx xx
> HCI Event: Command Complete (0x0e) plen 10
01 0D 04 00 78 A1 1F 96 A0 00
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
78 A1 1F 96 A0 00 01
> HCI Event: Command Status (0x0f) plen 4
0C 01 09 04
> HCI Event: Link Key Notification (0x18) plen 23
78 A1 1F 96 A0 00 xx xx xx xx xx xx xx xx xx xx xx xx xx xx
xx xx xx
> HCI Event: Connect Complete (0x03) plen 11
00 28 00 78 A1 1F 96 A0 00 01 00
< HCI Command: Change Connection Packet Type (0x01|0x000f) plen 4
28 00 18 CC
> HCI Event: Page Scan Repetition Mode Change (0x20) plen 7
78 A1 1F 96 A0 00 01
> HCI Event: Command Status (0x0f) plen 4
00 01 0F 04
> HCI Event: Connection Packet Type Changed (0x1d) plen 5
00 28 00 18 CC
> HCI Event: Max Slots Change (0x1b) plen 3
28 00 05
< HCI Command: PIN Code Request Reply (0x01|0x000d) plen 4
28 00 00 00
> HCI Event: Command Complete (0x0e) plen 10
01 0D 04 12 28 00 00 00 00 00
< HCI Command: Write Scan Enable (0x03|0x001a) plen 1
00
> HCI Event: Command Complete (0x0e) plen 4
01 1A 0C 00
> HCI Event: QoS Setup Complete (0x0d) plen 21
00 28 00 00 01 00 00 00 00 00 00 00 00 FF FF FF FF FF FF FF
FF
> ACL data: handle 0x0028 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 1 scid 0x0040
< ACL data: handle 0x0028 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x0000 scid 0x0040 result 2 status 0
> HCI Event: Number of Completed Packets (0x13) plen 5
01 28 00 01 00
> HCI Event: Disconn Complete (0x05) plen 4
00 28 00 13

And my board don`t response on HCI inquiryng from PC. I must restart hciattach.
I think, i incorrectly open L2CAP socket. Somebody help me please.






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2005-09-14 13:15:58

by Marcel Holtmann

[permalink] [raw]
Subject: Re: [Bluez-devel] L2CAP chnnel

Hi,

> I`m try to write application that send and recive data over L2CAP channel, between PC and my custom arm board. I have a next problem. I dont understand haw create a socket, if PC must inquirying and connect to my board. Device must remain slave in piconnect.
> I`m try run next simpl daemon on my custom arm board:
>
> struct sockaddr_l2 L2capAddr;
> int iSockFd;
> iSockFd = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_L2CAP);
> if (iSockFd == -1) {
> TRACE1("opening L2CAP socket: %s", strerror(errno));
> return -1;
> };
> L2capAddr.l2_bdaddr = *BDADDR_ANY;
> /*L2capAddr.l2_bdaddr = *strtoba( strdup("78:A1:1F:96:A0:00"));*/
> L2capAddr.l2_family = AF_BLUETOOTH;
> L2capAddr.l2_psm = htobs(SDP_PSM); // I sigth this valuer in Tsimbal code
> if(0 > bind(iSockFd, (struct sockaddr *)&L2capAddr, sizeof(L2capAddr)))
> {
> TRACE1("binding L2CAP socket: %s", strerror(errno));
> return -1;
> }
> incoming = listen(iSockFd, ACTIVE_CONN_MAX);
>
> But ACL connection don`t establishing. The hcidump on board give next chat

what about using "hcidump -X -V", because I am no longer decoding hex
numbers.

Regards

Marcel




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Download it for free - -and be entered to win a 42" plasma tv or your very
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2005-09-14 09:20:39

by Stephen Crane

[permalink] [raw]
Subject: Re: [Bluez-devel] L2CAP chnnel

Try replacing SOCK_RAW with SOCK_SEQPACKET. SOCK_RAW is only for raw HCI
sockets.

On Wed, 2005-09-14 at 10:54 +0400, ????? ??????? wrote:
> Hellow all.
>
> I`m try to write application that send and recive data over L2CAP channel, between PC and my custom arm board. I have a next problem. I dont understand haw create a socket, if PC must inquirying and connect to my board. Device must remain slave in piconnect.
> I`m try run next simpl daemon on my custom arm board:
>
> struct sockaddr_l2 L2capAddr;
> int iSockFd;
> iSockFd = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_L2CAP);
> if (iSockFd == -1) {
> TRACE1("opening L2CAP socket: %s", strerror(errno));
> return -1;
> };
> L2capAddr.l2_bdaddr = *BDADDR_ANY;
> /*L2capAddr.l2_bdaddr = *strtoba( strdup("78:A1:1F:96:A0:00"));*/
> L2capAddr.l2_family = AF_BLUETOOTH;
> L2capAddr.l2_psm = htobs(SDP_PSM); // I sigth this valuer in Tsimbal code
> if(0 > bind(iSockFd, (struct sockaddr *)&L2capAddr, sizeof(L2capAddr)))
> {
> TRACE1("binding L2CAP socket: %s", strerror(errno));
> return -1;
> }
> incoming = listen(iSockFd, ACTIVE_CONN_MAX);
>
> But ACL connection don`t establishing. The hcidump on board give next chat
>
> > HCI Event: Connect Request (0x04) plen 10
> 78 A1 1F 96 A0 00 04 5F 00 01
> < HCI Command: Accept Connection Request (0x01|0x0009) plen 7
> 78 A1 1F 96 A0 00 01
> > HCI Event: Command Status (0x0f) plen 4
> 00 01 09 04
> > HCI Event: Link Key Request (0x17) plen 6
> 78 A1 1F 96 A0 00
> < HCI Command: Link Key Request Negative Reply (0x01|0x000c) plen 6
> 78 A1 1F 96 A0 00
> > HCI Event: Command Complete (0x0e) plen 10
> 01 0C 04 00 78 A1 1F 96 A0 00
> > HCI Event: PIN Code Request (0x16) plen 6
> 78 A1 1F 96 A0 00
> < HCI Command: PIN Code Request Reply (0x01|0x000d) plen 23
> 78 A1 1F 96 A0 00 10 xx xx xx xx xx xx xx xx xx xx xx xx xx
> xx xx xx
> > HCI Event: Command Complete (0x0e) plen 10
> 01 0D 04 00 78 A1 1F 96 A0 00
> < HCI Command: Accept Connection Request (0x01|0x0009) plen 7
> 78 A1 1F 96 A0 00 01
> > HCI Event: Command Status (0x0f) plen 4
> 0C 01 09 04
> > HCI Event: Link Key Notification (0x18) plen 23
> 78 A1 1F 96 A0 00 xx xx xx xx xx xx xx xx xx xx xx xx xx xx
> xx xx xx
> > HCI Event: Connect Complete (0x03) plen 11
> 00 28 00 78 A1 1F 96 A0 00 01 00
> < HCI Command: Change Connection Packet Type (0x01|0x000f) plen 4
> 28 00 18 CC
> > HCI Event: Page Scan Repetition Mode Change (0x20) plen 7
> 78 A1 1F 96 A0 00 01
> > HCI Event: Command Status (0x0f) plen 4
> 00 01 0F 04
> > HCI Event: Connection Packet Type Changed (0x1d) plen 5
> 00 28 00 18 CC
> > HCI Event: Max Slots Change (0x1b) plen 3
> 28 00 05
> < HCI Command: PIN Code Request Reply (0x01|0x000d) plen 4
> 28 00 00 00
> > HCI Event: Command Complete (0x0e) plen 10
> 01 0D 04 12 28 00 00 00 00 00
> < HCI Command: Write Scan Enable (0x03|0x001a) plen 1
> 00
> > HCI Event: Command Complete (0x0e) plen 4
> 01 1A 0C 00
> > HCI Event: QoS Setup Complete (0x0d) plen 21
> 00 28 00 00 01 00 00 00 00 00 00 00 00 FF FF FF FF FF FF FF
> FF
> > ACL data: handle 0x0028 flags 0x02 dlen 12
> L2CAP(s): Connect req: psm 1 scid 0x0040
> < ACL data: handle 0x0028 flags 0x02 dlen 16
> L2CAP(s): Connect rsp: dcid 0x0000 scid 0x0040 result 2 status 0
> > HCI Event: Number of Completed Packets (0x13) plen 5
> 01 28 00 01 00
> > HCI Event: Disconn Complete (0x05) plen 4
> 00 28 00 13
>
> And my board don`t response on HCI inquiryng from PC. I must restart hciattach.
> I think, i incorrectly open L2CAP socket. Somebody help me please.
>
>
>
>
>
>
> -------------------------------------------------------
> SF.Net email is sponsored by:
> Tame your development challenges with Apache's Geronimo App Server.
> Download it for free - -and be entered to win a 42" plasma tv or your very
> own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php
> _______________________________________________
> Bluez-devel mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/bluez-devel
--
Stephen Crane, Rococo Software Ltd. http://www.rococosoft.com
[email protected] +353-1-6601315 (ext 209)

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