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Bluetooth: Add sockopt configuration for txWindow on L2CAP 

Now we can set/get Transmission Window size via sockopt.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Reviewed-by: João Paulo Rechi Vita <jprvita@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Gustavo F. Padovan 2010-05-01 16:15:40 -03:00 committed by Marcel Holtmann
parent 855666cccc
commit 14b5aa71ec
2 changed files with 8 additions and 1 deletions
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2
include/net/bluetooth/l2cap.h
View File

@ -56,6 +56,7 @@ struct l2cap_options {
__u16 flush_to;
__u8 mode;
__u8 fcs;
__u16 txwin_size;
};
#define L2CAP_CONNINFO 0x02
@ -339,6 +340,7 @@ struct l2cap_pinfo {
__u8 ident;
__u8 tx_win;
__u8 remote_tx_win;
__u8 remote_max_tx;
__u16 retrans_timeout;

7
net/bluetooth/l2cap.c
View File

@ -782,6 +782,7 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
pi->omtu = l2cap_pi(parent)->omtu;
pi->mode = l2cap_pi(parent)->mode;
pi->fcs = l2cap_pi(parent)->fcs;
pi->tx_win = l2cap_pi(parent)->tx_win;
pi->sec_level = l2cap_pi(parent)->sec_level;
pi->role_switch = l2cap_pi(parent)->role_switch;
pi->force_reliable = l2cap_pi(parent)->force_reliable;
@ -790,6 +791,7 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
pi->omtu = 0;
pi->mode = L2CAP_MODE_BASIC;
pi->fcs = L2CAP_FCS_CRC16;
pi->tx_win = L2CAP_DEFAULT_TX_WINDOW;
pi->sec_level = BT_SECURITY_LOW;
pi->role_switch = 0;
pi->force_reliable = 0;
@ -1782,6 +1784,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
opts.flush_to = l2cap_pi(sk)->flush_to;
opts.mode = l2cap_pi(sk)->mode;
opts.fcs = l2cap_pi(sk)->fcs;
opts.txwin_size = (__u16)l2cap_pi(sk)->tx_win;
len = min_t(unsigned int, sizeof(opts), optlen);
if (copy_from_user((char *) &opts, optval, len)) {
@ -1793,6 +1796,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
l2cap_pi(sk)->omtu = opts.omtu;
l2cap_pi(sk)->mode = opts.mode;
l2cap_pi(sk)->fcs = opts.fcs;
l2cap_pi(sk)->tx_win = (__u8)opts.txwin_size;
break;
case L2CAP_LM:
@ -1907,6 +1911,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
opts.flush_to = l2cap_pi(sk)->flush_to;
opts.mode = l2cap_pi(sk)->mode;
opts.fcs = l2cap_pi(sk)->fcs;
opts.txwin_size = (__u16)l2cap_pi(sk)->tx_win;
len = min_t(unsigned int, len, sizeof(opts));
if (copy_to_user(optval, (char *) &opts, len))
@ -2324,7 +2329,7 @@ done:
case L2CAP_MODE_ERTM:
rfc.mode = L2CAP_MODE_ERTM;
rfc.txwin_size = L2CAP_DEFAULT_TX_WINDOW;
rfc.txwin_size = pi->tx_win;
rfc.max_transmit = max_transmit;
rfc.retrans_timeout = 0;
rfc.monitor_timeout = 0;