Return-Path: From: "Gustavo F. Padovan" To: linux-bluetooth@vger.kernel.org Subject: [PATCH 3/6] Bluetooth: Add chan->link_type struct member Date: Thu, 12 May 2011 02:32:27 -0300 Message-Id: <1305178350-7568-3-git-send-email-padovan@profusion.mobi> In-Reply-To: <1305178350-7568-2-git-send-email-padovan@profusion.mobi> References: <1305178350-7568-1-git-send-email-padovan@profusion.mobi> <1305178350-7568-2-git-send-email-padovan@profusion.mobi> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: link_type says if our link is raw, connection less or connection oriented. Signed-off-by: Gustavo F. Padovan --- include/net/bluetooth/l2cap.h | 5 +++++ net/bluetooth/l2cap_core.c | 30 +++++++++++------------------- net/bluetooth/l2cap_sock.c | 30 +++++++++++++++++++++++------- 3 files changed, 39 insertions(+), 26 deletions(-) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index dc721ca..6915c43 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -295,6 +295,7 @@ struct l2cap_chan { __u16 omtu; __u16 flush_to; __u8 mode; + __u8 link_type; __le16 sport; @@ -384,6 +385,10 @@ struct l2cap_conn { #define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04 #define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08 +#define L2CAP_LINK_RAW 1 +#define L2CAP_LINK_CONNLESS 2 +#define L2CAP_LINK_ORIENTED 3 + /* ----- L2CAP socket info ----- */ #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 5473fc9..e1731b9 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -245,7 +245,7 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan) chan->conn = conn; - if (sk->sk_type == SOCK_SEQPACKET || sk->sk_type == SOCK_STREAM) { + if (chan->link_type == L2CAP_LINK_ORIENTED) { if (conn->hcon->type == LE_LINK) { /* LE connection */ chan->omtu = L2CAP_LE_DEFAULT_MTU; @@ -256,7 +256,7 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan) chan->scid = l2cap_alloc_cid(conn); chan->omtu = L2CAP_DEFAULT_MTU; } - } else if (sk->sk_type == SOCK_DGRAM) { + } else if (chan->link_type == L2CAP_LINK_CONNLESS) { /* Connectionless socket */ chan->scid = L2CAP_CID_CONN_LESS; chan->dcid = L2CAP_CID_CONN_LESS; @@ -369,8 +369,7 @@ void __l2cap_chan_close(struct l2cap_chan *chan, int reason) case BT_CONNECTED: case BT_CONFIG: - if ((sk->sk_type == SOCK_SEQPACKET || - sk->sk_type == SOCK_STREAM) && + if (chan->link_type == L2CAP_LINK_ORIENTED && conn->hcon->type == ACL_LINK) { l2cap_sock_set_timer(sk, sk->sk_sndtimeo); l2cap_send_disconn_req(conn, chan, reason); @@ -379,8 +378,7 @@ void __l2cap_chan_close(struct l2cap_chan *chan, int reason) break; case BT_CONNECT2: - if ((sk->sk_type == SOCK_SEQPACKET || - sk->sk_type == SOCK_STREAM) && + if (chan->link_type == L2CAP_LINK_ORIENTED && conn->hcon->type == ACL_LINK) { struct l2cap_conn_rsp rsp; __u16 result; @@ -414,9 +412,7 @@ void __l2cap_chan_close(struct l2cap_chan *chan, int reason) static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan) { - struct sock *sk = chan->sk; - - if (sk->sk_type == SOCK_RAW) { + if (chan->link_type == L2CAP_LINK_RAW) { switch (chan->sec_level) { case BT_SECURITY_HIGH: return HCI_AT_DEDICATED_BONDING_MITM; @@ -657,8 +653,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn) bh_lock_sock(sk); - if (sk->sk_type != SOCK_SEQPACKET && - sk->sk_type != SOCK_STREAM) { + if (chan->link_type != L2CAP_LINK_ORIENTED) { bh_unlock_sock(sk); continue; } @@ -852,8 +847,7 @@ static void l2cap_conn_ready(struct l2cap_conn *conn) sk->sk_state_change(sk); } - if (sk->sk_type != SOCK_SEQPACKET && - sk->sk_type != SOCK_STREAM) { + if (chan->link_type != L2CAP_LINK_ORIENTED) { l2cap_sock_clear_timer(sk); sk->sk_state = BT_CONNECTED; sk->sk_state_change(sk); @@ -1056,8 +1050,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan) l2cap_sock_set_timer(sk, sk->sk_sndtimeo); if (hcon->state == BT_CONNECTED) { - if (sk->sk_type != SOCK_SEQPACKET && - sk->sk_type != SOCK_STREAM) { + if (chan->link_type != L2CAP_LINK_ORIENTED) { l2cap_sock_clear_timer(sk); if (l2cap_check_security(chan)) sk->sk_state = BT_CONNECTED; @@ -1537,13 +1530,12 @@ int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t le int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len) { - struct sock *sk = chan->sk; struct sk_buff *skb; u16 control; int err; /* Connectionless channel */ - if (sk->sk_type == SOCK_DGRAM) { + if (chan->link_type == L2CAP_LINK_CONNLESS) { skb = l2cap_create_connless_pdu(chan, msg, len); if (IS_ERR(skb)) return PTR_ERR(skb); @@ -1649,7 +1641,7 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb) read_lock(&conn->chan_lock); list_for_each_entry(chan, &conn->chan_l, list) { struct sock *sk = chan->sk; - if (sk->sk_type != SOCK_RAW) + if (chan->link_type != L2CAP_LINK_RAW) continue; /* Don't send frame to the socket it came from */ @@ -4105,7 +4097,7 @@ static inline void l2cap_check_encryption(struct l2cap_chan *chan, u8 encrypt) { struct sock *sk = chan->sk; - if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM) + if (chan->link_type != L2CAP_LINK_ORIENTED) return; if (encrypt == 0x00) { diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index f36776e..6d5ecca 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -162,7 +162,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al lock_sock(sk); - if ((sk->sk_type == SOCK_SEQPACKET || sk->sk_type == SOCK_STREAM) + if (chan->link_type == L2CAP_LINK_ORIENTED && !(la.l2_psm || la.l2_cid)) { err = -EINVAL; goto done; @@ -204,8 +204,8 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al } /* PSM must be odd and lsb of upper byte must be 0 */ - if ((__le16_to_cpu(la.l2_psm) & 0x0101) != 0x0001 && - sk->sk_type != SOCK_RAW && !la.l2_cid) { + if ((__le16_to_cpu(la.l2_psm) & 0x0101) != 0x0001 && !la.l2_cid && + chan->link_type == L2CAP_LINK_RAW) { err = -EINVAL; goto done; } @@ -453,8 +453,8 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch switch (optname) { case BT_SECURITY: - if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM - && sk->sk_type != SOCK_RAW) { + if (chan->link_type != L2CAP_LINK_ORIENTED && + chan->link_type != L2CAP_LINK_RAW) { err = -EINVAL; break; } @@ -599,8 +599,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch switch (optname) { case BT_SECURITY: - if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM - && sk->sk_type != SOCK_RAW) { + if (chan->link_type != L2CAP_LINK_ORIENTED && + chan->link_type != L2CAP_LINK_RAW) { err = -EINVAL; break; } @@ -806,6 +806,7 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent) sk->sk_type = parent->sk_type; bt_sk(sk)->defer_setup = bt_sk(parent)->defer_setup; + chan->link_type = pchan->link_type; chan->imtu = pchan->imtu; chan->omtu = pchan->omtu; chan->conf_state = pchan->conf_state; @@ -818,6 +819,20 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent) chan->force_reliable = pchan->force_reliable; chan->flushable = pchan->flushable; } else { + + switch (sk->sk_type) { + case SOCK_RAW: + chan->link_type = L2CAP_LINK_RAW; + break; + case SOCK_DGRAM: + chan->link_type = L2CAP_LINK_CONNLESS; + break; + case SOCK_SEQPACKET: + case SOCK_STREAM: + chan->link_type = L2CAP_LINK_ORIENTED; + break; + } + chan->imtu = L2CAP_DEFAULT_MTU; chan->omtu = 0; if (!disable_ertm && sk->sk_type == SOCK_STREAM) { @@ -826,6 +841,7 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent) } else { chan->mode = L2CAP_MODE_BASIC; } + chan->max_tx = L2CAP_DEFAULT_MAX_TX; chan->fcs = L2CAP_FCS_CRC16; chan->tx_win = L2CAP_DEFAULT_TX_WINDOW; -- 1.7.5.rc3