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authorGustavo F. Padovan <gustavo@las.ic.unicamp.br>2009-04-20 01:31:05 -0300
committerMarcel Holtmann <marcel@holtmann.org>2009-06-08 14:49:59 +0200
commit8db4dc46dcff7568896aa1eae4bd07620ce3dd93 (patch)
tree32b92a182971618462f5997c156fa953cd9049cc
parenta1c1db392090bd280d1c3e2ed52ef682746ee332 (diff)
Bluetooth: Use macros for L2CAP channel identifiers
Use macros instead of hardcoded numbers to make the L2CAP source code more readable. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
-rw-r--r--include/net/bluetooth/l2cap.h6
-rw-r--r--net/bluetooth/l2cap.c18
2 files changed, 15 insertions, 9 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index f566aa1f0a4..ed4ba913d94 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -106,6 +106,12 @@ struct l2cap_conn_rsp {
__le16 status;
} __attribute__ ((packed));
+/* channel indentifier */
+#define L2CAP_CID_SIGNALING 0x0001
+#define L2CAP_CID_CONN_LESS 0x0002
+#define L2CAP_CID_DYN_START 0x0040
+#define L2CAP_CID_DYN_END 0xffff
+
/* connect result */
#define L2CAP_CR_SUCCESS 0x0000
#define L2CAP_CR_PEND 0x0001
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index ca4d3b40d5c..ff1744e34cd 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -161,9 +161,9 @@ static inline struct sock *l2cap_get_chan_by_ident(struct l2cap_chan_list *l, u8
static u16 l2cap_alloc_cid(struct l2cap_chan_list *l)
{
- u16 cid = 0x0040;
+ u16 cid = L2CAP_CID_DYN_START;
- for (; cid < 0xffff; cid++) {
+ for (; cid < L2CAP_CID_DYN_END; cid++) {
if(!__l2cap_get_chan_by_scid(l, cid))
return cid;
}
@@ -215,13 +215,13 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct so
l2cap_pi(sk)->scid = l2cap_alloc_cid(l);
} else if (sk->sk_type == SOCK_DGRAM) {
/* Connectionless socket */
- l2cap_pi(sk)->scid = 0x0002;
- l2cap_pi(sk)->dcid = 0x0002;
+ l2cap_pi(sk)->scid = L2CAP_CID_CONN_LESS;
+ l2cap_pi(sk)->dcid = L2CAP_CID_CONN_LESS;
l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
} else {
/* Raw socket can send/recv signalling messages only */
- l2cap_pi(sk)->scid = 0x0001;
- l2cap_pi(sk)->dcid = 0x0001;
+ l2cap_pi(sk)->scid = L2CAP_CID_SIGNALING;
+ l2cap_pi(sk)->dcid = L2CAP_CID_SIGNALING;
l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
}
@@ -1598,7 +1598,7 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
lh->len = cpu_to_le16(L2CAP_CMD_HDR_SIZE + dlen);
- lh->cid = cpu_to_le16(0x0001);
+ lh->cid = cpu_to_le16(L2CAP_CID_SIGNALING);
cmd = (struct l2cap_cmd_hdr *) skb_put(skb, L2CAP_CMD_HDR_SIZE);
cmd->code = code;
@@ -2420,11 +2420,11 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
BT_DBG("len %d, cid 0x%4.4x", len, cid);
switch (cid) {
- case 0x0001:
+ case L2CAP_CID_SIGNALING:
l2cap_sig_channel(conn, skb);
break;
- case 0x0002:
+ case L2CAP_CID_CONN_LESS:
psm = get_unaligned((__le16 *) skb->data);
skb_pull(skb, 2);
l2cap_conless_channel(conn, psm, skb);