With the sockopt extension we can set a per-channel MaxTx value.
Signed-off-by: Gustavo F. Padovan <gustavo@xxxxxxxxxxx>
---
include/net/bluetooth/l2cap.h | 2 ++
net/bluetooth/l2cap.c | 7 ++++++-
2 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index f1eca05..0366a84 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -56,6 +56,7 @@ struct l2cap_options {
__u8 mode;
__u8 fcs;
__u8 txwin_size;
+ __u8 max_tx;
};
#define L2CAP_CONNINFO 0x02
@@ -340,6 +341,7 @@ struct l2cap_pinfo {
__u8 ident;
__u8 tx_win;
+ __u8 max_tx;
__u8 remote_tx_win;
__u8 remote_max_tx;
__u16 retrans_timeout;
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 6f3dc6e..5ff0ca0 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -781,6 +781,7 @@ 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->max_tx = l2cap_pi(parent)->max_tx;
pi->tx_win = l2cap_pi(parent)->tx_win;
pi->sec_level = l2cap_pi(parent)->sec_level;
pi->role_switch = l2cap_pi(parent)->role_switch;
@@ -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->max_tx = max_transmit;
pi->tx_win = tx_window;
pi->sec_level = BT_SECURITY_LOW;
pi->role_switch = 0;
@@ -1780,6 +1782,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
opts.mode = l2cap_pi(sk)->mode;
opts.fcs = l2cap_pi(sk)->fcs;
opts.txwin_size = l2cap_pi(sk)->tx_win;
+ opts.max_tx = l2cap_pi(sk)->max_tx;
len = min_t(unsigned int, sizeof(opts), optlen);
if (copy_from_user((char *) &opts, optval, len)) {
@@ -1792,6 +1795,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
l2cap_pi(sk)->mode = opts.mode;
l2cap_pi(sk)->fcs = opts.fcs;
l2cap_pi(sk)->tx_win = opts.txwin_size;
+ l2cap_pi(sk)->max_tx = opts.max_tx;
break;
case L2CAP_LM:
@@ -1907,6 +1911,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
opts.mode = l2cap_pi(sk)->mode;
opts.fcs = l2cap_pi(sk)->fcs;
opts.txwin_size = l2cap_pi(sk)->tx_win;
+ opts.max_tx = l2cap_pi(sk)->max_tx;
len = min_t(unsigned int, len, sizeof(opts));
if (copy_to_user(optval, (char *) &opts, len))
@@ -2325,7 +2330,7 @@ done:
case L2CAP_MODE_ERTM:
rfc.mode = L2CAP_MODE_ERTM;
rfc.txwin_size = pi->tx_win;
- rfc.max_transmit = max_transmit;
+ rfc.max_transmit = pi->max_tx;
rfc.retrans_timeout = 0;
rfc.monitor_timeout = 0;
rfc.max_pdu_size = cpu_to_le16(L2CAP_DEFAULT_MAX_PDU_SIZE);
--
1.6.4.4
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