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Bluetooth: Errata Service Release 8, Erratum 3253 

L2CAP: New result values
	0x0006 - Connection refused – Invalid Source CID
	0x0007 - Connection refused – Source CID already allocated

As per the ESR08_V1.0.0, 1.11.2 Erratum 3253, Page No. 54,
"Remote CID invalid Issue".
Applies to Core Specification versions: V5.0, V4.2, v4.1, v4.0, and v3.0 + HS
Vol 3, Part A, Section 4.2, 4.3, 4.14, 4.15.

Core Specification Version 5.0, Page No.1753, Table 4.6 and
Page No. 1767, Table 4.14

New result values are added to l2cap connect/create channel response as
0x0006 - Connection refused – Invalid Source CID
0x0007 - Connection refused – Source CID already allocated

Signed-off-by: Mallikarjun Phulari <mallikarjun.phulari@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Mallikarjun Phulari 2018-10-05 14:48:13 +05:30 committed by Marcel Holtmann
parent 571f739083
commit dd1a8f8a88
2 changed files with 12 additions and 2 deletions
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2
include/net/bluetooth/l2cap.h
View File

@ -277,6 +277,8 @@ struct l2cap_conn_rsp {
#define L2CAP_CR_SEC_BLOCK 0x0003
#define L2CAP_CR_NO_MEM 0x0004
#define L2CAP_CR_BAD_AMP 0x0005
#define L2CAP_CR_INVALID_SCID 0x0006
#define L2CAP_CR_SCID_IN_USE 0x0007
/* credit based connect results */
#define L2CAP_CR_LE_SUCCESS 0x0000

12
net/bluetooth/l2cap_core.c
View File

@ -3816,9 +3816,17 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
result = L2CAP_CR_NO_MEM;
/* Check if we already have channel with that dcid */
if (__l2cap_get_chan_by_dcid(conn, scid))
/* Check for valid dynamic CID range (as per Erratum 3253) */
if (scid < L2CAP_CID_DYN_START || scid > L2CAP_CID_DYN_END) {
result = L2CAP_CR_INVALID_SCID;
goto response;
}
/* Check if we already have channel with that dcid */
if (__l2cap_get_chan_by_dcid(conn, scid)) {
result = L2CAP_CR_SCID_IN_USE;
goto response;
}
chan = pchan->ops->new_connection(pchan);
if (!chan)