UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

Bluetooth: EFS: implement L2CAP config pending state 

Add L2CAP Config Pending state for EFS. Currently after receiving
Config Response Pending respond with Config Response Success.

...
> ACL data: handle 1 flags 0x02 dlen 16
    L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
      Connection successful
> ACL data: handle 1 flags 0x02 dlen 45
    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 33
      RFC 0x03 (Enhanced Retransmission, TxWin 63, MaxTx 3, RTo 0, MTo 0, MPS 1009)
      EFS (Id 0x01, SerType Best Effort, MaxSDU 0xffff, SDUitime 0xffffffff,
          AccLat 0xffffffff, FlushTO 0x0000ffff)
< ACL data: handle 1 flags 0x00 dlen 45
    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 33
      RFC 0x03 (Enhanced Retransmission, TxWin 63, MaxTx 3, RTo 0, MTo 0, MPS 498)
      EFS (Id 0x01, SerType Best Effort, MaxSDU 0xffff, SDUitime 0xffffffff,
          AccLat 0xffffffff, FlushTO 0x0000ffff)
< ACL data: handle 1 flags 0x00 dlen 47
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 4 clen 33
      Pending
      MTU 672
      RFC 0x03 (Enhanced Retransmission, TxWin 63, MaxTx 3, RTo 2000, MTo 12000, MPS 498)
      EFS (Id 0x01, SerType Best Effort, MaxSDU 0xffff, SDUitime 0xffffffff,
          AccLat 0xffffffff, FlushTO 0x0000ffff)
> ACL data: handle 1 flags 0x02 dlen 47
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 4 clen 33
      Pending
      MTU 672
      RFC 0x03 (Enhanced Retransmission, TxWin 63, MaxTx 3, RTo 2000, MTo 12000, MPS 498)
      EFS (Id 0x01, SerType Best Effort, MaxSDU 0xffff, SDUitime 0xffffffff,
          AccLat 0xffffffff, FlushTO 0x0000ffff)
> ACL data: handle 1 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 0
      Success
< ACL data: handle 1 flags 0x00 dlen 14
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 0
      Success
< ACL data: handle 1 flags 0x00 dlen 510
    L2CAP(d): cid 0x0040 len 506 ext_ctrl 0x00010000 fcs 0xebe0 [psm 4113]
      I-frame: Start (len 672) TxSeq 0 ReqSeq 0
...

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Andrei Emeltchenko 2011-10-17 14:35:32 +03:00 committed by Gustavo F. Padovan
parent c3eae82a84
commit 0e8b207e8a
2 changed files with 49 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/net/bluetooth/l2cap.h
View File

@ -246,6 +246,7 @@ struct l2cap_conf_rsp {
#define L2CAP_CONF_UNACCEPT 0x0001
#define L2CAP_CONF_REJECT 0x0002
#define L2CAP_CONF_UNKNOWN 0x0003
#define L2CAP_CONF_PENDING 0x0004
#define L2CAP_CONF_EFS_REJECT 0x0005
struct l2cap_conf_opt {
@ -505,6 +506,8 @@ enum {
CONF_NO_FCS_RECV,
CONF_STATE2_DEVICE,
CONF_EWS_RECV,
CONF_LOC_CONF_PEND,
CONF_REM_CONF_PEND,
};
#define L2CAP_CONF_MAX_CONF_REQ 2

47
net/bluetooth/l2cap_core.c
View File

@ -2239,6 +2239,11 @@ done:
l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
sizeof(efs),
(unsigned long) &efs);
} else {
/* Send PENDING Conf Rsp and mark state
local PENDING */
result = L2CAP_CONF_PENDING;
set_bit(CONF_LOC_CONF_PEND, &chan->conf_state);
}
}
@ -2379,7 +2384,7 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi
chan->mode = rfc.mode;
if (*result == L2CAP_CONF_SUCCESS) {
if (*result == L2CAP_CONF_SUCCESS || *result == L2CAP_CONF_PENDING) {
switch (rfc.mode) {
case L2CAP_MODE_ERTM:
chan->retrans_timeout = le16_to_cpu(rfc.retrans_timeout);
@ -2785,6 +2790,21 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
chan->num_conf_req++;
}
/* Got Conf Rsp PENDING from remote side and asume we sent
Conf Rsp PENDING in the code above */
if (test_bit(CONF_REM_CONF_PEND, &chan->conf_state) &&
test_bit(CONF_LOC_CONF_PEND, &chan->conf_state)) {
/* check compatibility */
clear_bit(CONF_LOC_CONF_PEND, &chan->conf_state);
set_bit(CONF_OUTPUT_DONE, &chan->conf_state);
l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
l2cap_build_conf_rsp(chan, rsp,
L2CAP_CONF_SUCCESS, 0x0000), rsp);
}
unlock:
bh_unlock_sock(sk);
return 0;
@ -2814,8 +2834,33 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
switch (result) {
case L2CAP_CONF_SUCCESS:
l2cap_conf_rfc_get(chan, rsp->data, len);
clear_bit(CONF_REM_CONF_PEND, &chan->conf_state);
break;
case L2CAP_CONF_PENDING:
set_bit(CONF_REM_CONF_PEND, &chan->conf_state);
if (test_bit(CONF_LOC_CONF_PEND, &chan->conf_state)) {
char buf[64];
len = l2cap_parse_conf_rsp(chan, rsp->data, len,
buf, &result);
if (len < 0) {
l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto done;
}
/* check compatibility */
clear_bit(CONF_LOC_CONF_PEND, &chan->conf_state);
set_bit(CONF_OUTPUT_DONE, &chan->conf_state);
l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
l2cap_build_conf_rsp(chan, buf,
L2CAP_CONF_SUCCESS, 0x0000), buf);
}
goto done;
case L2CAP_CONF_UNACCEPT:
if (chan->num_conf_rsp <= L2CAP_CONF_MAX_CONF_RSP) {
char req[64];