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Bluetooth: Fix RFCOMM RPN negotiation

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According to the ETSI 3GPP TS 07.10 the default bit rate value for RFCOMM
is 9600 bit/s. Return this bit rate in case of RPN request and accept other
sane bit rates proposed by the sender in RPM command.

Signed-off-by: Yuri Kululin <ext-yuri.kululin@nokia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Yuri Kululin 2010-07-23 13:57:12 +04:00 committed by Gustavo F. Padovan
parent fb3d8eb47c
commit 08601469a5
1 changed files with 4 additions and 4 deletions
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8
net/bluetooth/rfcomm/core.c
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@ -1415,8 +1415,8 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
return 0;
if (len == 1) {
/* This is a request, return default settings */
bit_rate = RFCOMM_RPN_BR_115200;
/* This is a request, return default (according to ETSI TS 07.10) settings */
bit_rate = RFCOMM_RPN_BR_9600;
data_bits = RFCOMM_RPN_DATA_8;
stop_bits = RFCOMM_RPN_STOP_1;
parity = RFCOMM_RPN_PARITY_NONE;
@ -1431,9 +1431,9 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
if (rpn->param_mask & cpu_to_le16(RFCOMM_RPN_PM_BITRATE)) {
bit_rate = rpn->bit_rate;
if (bit_rate != RFCOMM_RPN_BR_115200) {
if (bit_rate > RFCOMM_RPN_BR_230400) {
BT_DBG("RPN bit rate mismatch 0x%x", bit_rate);
bit_rate = RFCOMM_RPN_BR_115200;
bit_rate = RFCOMM_RPN_BR_9600;
rpn_mask ^= RFCOMM_RPN_PM_BITRATE;
}
}