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Bluetooth: Add L2CAP RFC option if ERTM is enabled 

When trying to establish a connection with Enhanced Retransmission mode
enabled, the RFC option needs to be added to the configuration.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Marcel Holtmann 2009-05-02 23:07:53 -07:00
parent c6b03cf986
commit 65c7c49184
1 changed files with 20 additions and 3 deletions
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23
net/bluetooth/l2cap.c
View File

@ -1743,12 +1743,29 @@ static int l2cap_build_conf_req(struct sock *sk, void *data)
{
struct l2cap_pinfo *pi = l2cap_pi(sk);
struct l2cap_conf_req *req = data;
struct l2cap_conf_rfc rfc = { .mode = L2CAP_MODE_BASIC };
void *ptr = req->data;
BT_DBG("sk %p", sk);
if (pi->imtu != L2CAP_DEFAULT_MTU)
l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->imtu);
switch (pi->mode) {
case L2CAP_MODE_BASIC:
if (pi->imtu != L2CAP_DEFAULT_MTU)
l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->imtu);
break;
case L2CAP_MODE_ERTM:
rfc.mode = L2CAP_MODE_ERTM;
rfc.txwin_size = L2CAP_DEFAULT_RX_WINDOW;
rfc.max_transmit = L2CAP_DEFAULT_MAX_RECEIVE;
rfc.retrans_timeout = cpu_to_le16(L2CAP_DEFAULT_RETRANS_TO);
rfc.monitor_timeout = cpu_to_le16(L2CAP_DEFAULT_MONITOR_TO);
rfc.max_pdu_size = cpu_to_le16(L2CAP_DEFAULT_MAX_RX_APDU);
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
sizeof(rfc), (unsigned long) &rfc);
break;
}
/* FIXME: Need actual value of the flush timeout */
//if (flush_to != L2CAP_DEFAULT_FLUSH_TO)
@ -1828,7 +1845,7 @@ static int l2cap_parse_conf_req(struct sock *sk, void *data)
rfc.mode = L2CAP_MODE_BASIC;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
sizeof(rfc), (unsigned long) &rfc);
sizeof(rfc), (unsigned long) &rfc);
}
}