From 2dc4e5105f012bda7eef2f459ed3d5299ded9672 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Fri, 12 Oct 2012 19:35:24 +0800 Subject: [PATCH] Bluetooth: Add chan->ops->defer() When DEFER_SETUP is set defer() will trigger an authorization request to the userspace. l2cap_chan_no_defer() is meant to be used when one does not want to support DEFER_SETUP (A2MP for example). Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan --- include/net/bluetooth/l2cap.h | 5 +++++ net/bluetooth/a2mp.c | 1 + net/bluetooth/l2cap_core.c | 10 +++------- net/bluetooth/l2cap_sock.c | 10 ++++++++++ 4 files changed, 19 insertions(+), 7 deletions(-) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index caab98c45121..6e23afdf65c1 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -541,6 +541,7 @@ struct l2cap_ops { void (*state_change) (struct l2cap_chan *chan, int state); void (*ready) (struct l2cap_chan *chan); + void (*defer) (struct l2cap_chan *chan); struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan, unsigned long len, int nb); }; @@ -748,6 +749,10 @@ static inline void l2cap_chan_no_ready(struct l2cap_chan *chan) { } +static inline void l2cap_chan_no_defer(struct l2cap_chan *chan) +{ +} + extern bool disable_ertm; int l2cap_init_sockets(void); diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c index 3ff4dc928bf5..7bf9a10d8e46 100644 --- a/net/bluetooth/a2mp.c +++ b/net/bluetooth/a2mp.c @@ -699,6 +699,7 @@ static struct l2cap_ops a2mp_chan_ops = { .new_connection = l2cap_chan_no_new_connection, .teardown = l2cap_chan_no_teardown, .ready = l2cap_chan_no_ready, + .defer = l2cap_chan_no_defer, }; static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 9d84050bed2c..314d95580d73 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1120,11 +1120,9 @@ static void l2cap_conn_start(struct l2cap_conn *conn) lock_sock(sk); if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { - struct sock *parent = bt_sk(sk)->parent; rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND); rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHOR_PEND); - if (parent) - parent->sk_data_ready(parent, 0); + chan->ops->defer(chan); } else { __l2cap_state_change(chan, BT_CONFIG); @@ -3460,7 +3458,7 @@ static void __l2cap_connect(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, __l2cap_state_change(chan, BT_CONNECT2); result = L2CAP_CR_PEND; status = L2CAP_CS_AUTHOR_PEND; - parent->sk_data_ready(parent, 0); + chan->ops->defer(chan); } else { __l2cap_state_change(chan, BT_CONFIG); result = L2CAP_CR_SUCCESS; @@ -5523,11 +5521,9 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt) if (!status) { if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { - struct sock *parent = bt_sk(sk)->parent; res = L2CAP_CR_PEND; stat = L2CAP_CS_AUTHOR_PEND; - if (parent) - parent->sk_data_ready(parent, 0); + chan->ops->defer(chan); } else { __l2cap_state_change(chan, BT_CONFIG); res = L2CAP_CR_SUCCESS; diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index d5093b853b05..5fae2bd879a1 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -1081,6 +1081,15 @@ static void l2cap_sock_ready_cb(struct l2cap_chan *chan) release_sock(sk); } +static void l2cap_sock_defer_cb(struct l2cap_chan *chan) +{ + struct sock *sk = chan->data; + struct sock *parent = bt_sk(sk)->parent; + + if (parent) + parent->sk_data_ready(parent, 0); +} + static struct l2cap_ops l2cap_chan_ops = { .name = "L2CAP Socket Interface", .new_connection = l2cap_sock_new_connection_cb, @@ -1089,6 +1098,7 @@ static struct l2cap_ops l2cap_chan_ops = { .teardown = l2cap_sock_teardown_cb, .state_change = l2cap_sock_state_change_cb, .ready = l2cap_sock_ready_cb, + .defer = l2cap_sock_defer_cb, .alloc_skb = l2cap_sock_alloc_skb_cb, }; -- GitLab