Commit 8e036fc3 authored by Al Viro's avatar Al Viro Committed by David S. Miller
Browse files

[BLUETOOTH] l2cap: endianness annotations 



no code changes, just documenting existing types

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6dc0c208

include/net/bluetooth/l2cap.h

+25 −25
Original line number Diff line number Diff line
@@ -34,7 +34,7 @@ 
/* L2CAP socket address */

struct sockaddr_l2 {

	sa_family_t	l2_family;

	unsigned short	l2_psm;

	__le16		l2_psm;

	bdaddr_t	l2_bdaddr;

};
@@ -76,32 +76,32 @@ struct l2cap_conninfo { 


/* L2CAP structures */

struct l2cap_hdr {

	__u16      len;

	__u16      cid;

	__le16     len;

	__le16     cid;

} __attribute__ ((packed));

#define L2CAP_HDR_SIZE		4



struct l2cap_cmd_hdr {

	__u8       code;

	__u8       ident;

	__u16      len;

	__le16     len;

} __attribute__ ((packed));

#define L2CAP_CMD_HDR_SIZE	4



struct l2cap_cmd_rej {

	__u16      reason;

	__le16     reason;

} __attribute__ ((packed));



struct l2cap_conn_req {

	__u16      psm;

	__u16      scid;

	__le16     psm;

	__le16     scid;

} __attribute__ ((packed));



struct l2cap_conn_rsp {

	__u16      dcid;

	__u16      scid;

	__u16      result;

	__u16      status;

	__le16     dcid;

	__le16     scid;

	__le16     result;

	__le16     status;

} __attribute__ ((packed));



/* connect result */
@@ -117,15 +117,15 @@ struct l2cap_conn_rsp { 
#define L2CAP_CS_AUTHOR_PEND  0x0002



struct l2cap_conf_req {

	__u16      dcid;

	__u16      flags;

	__le16     dcid;

	__le16     flags;

	__u8       data[0];

} __attribute__ ((packed));



struct l2cap_conf_rsp {

	__u16      scid;

	__u16      flags;

	__u16      result;

	__le16     scid;

	__le16     flags;

	__le16     result;

	__u8       data[0];

} __attribute__ ((packed));
@@ -149,23 +149,23 @@ struct l2cap_conf_opt { 
#define L2CAP_CONF_MAX_SIZE	22



struct l2cap_disconn_req {

	__u16      dcid;

	__u16      scid;

	__le16     dcid;

	__le16     scid;

} __attribute__ ((packed));



struct l2cap_disconn_rsp {

	__u16      dcid;

	__u16      scid;

	__le16     dcid;

	__le16     scid;

} __attribute__ ((packed));



struct l2cap_info_req {

	__u16       type;

	__le16      type;

	__u8        data[0];

} __attribute__ ((packed));



struct l2cap_info_rsp {

	__u16       type;

	__u16       result;

	__le16      type;

	__le16      result;

	__u8        data[0];

} __attribute__ ((packed));
@@ -207,7 +207,7 @@ struct l2cap_conn { 


struct l2cap_pinfo {

	struct bt_sock	bt;

	__u16		psm;

	__le16		psm;

	__u16		dcid;

	__u16		scid;
@@ -225,7 +225,7 @@ struct l2cap_pinfo { 


	__u8		ident;



	__u16		sport;

	__le16		sport;



	struct l2cap_conn	*conn;

	struct sock		*next_c;

net/bluetooth/l2cap.c

+14 −13
Original line number Diff line number Diff line
@@ -353,7 +353,7 @@ static inline int l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 
}



/* ---- Socket interface ---- */

static struct sock *__l2cap_get_sock_by_addr(u16 psm, bdaddr_t *src)

static struct sock *__l2cap_get_sock_by_addr(__le16 psm, bdaddr_t *src)

{

	struct sock *sk;

	struct hlist_node *node;
@@ -368,7 +368,7 @@ static struct sock *__l2cap_get_sock_by_addr(u16 psm, bdaddr_t *src) 
/* Find socket with psm and source bdaddr.

 * Returns closest match.

 */

static struct sock *__l2cap_get_sock_by_psm(int state, u16 psm, bdaddr_t *src)

static struct sock *__l2cap_get_sock_by_psm(int state, __le16 psm, bdaddr_t *src)

{

	struct sock *sk = NULL, *sk1 = NULL;

	struct hlist_node *node;
@@ -392,7 +392,7 @@ static struct sock *__l2cap_get_sock_by_psm(int state, u16 psm, bdaddr_t *src) 


/* Find socket with given address (psm, src).

 * Returns locked socket */

static inline struct sock *l2cap_get_sock_by_psm(int state, u16 psm, bdaddr_t *src)

static inline struct sock *l2cap_get_sock_by_psm(int state, __le16 psm, bdaddr_t *src)

{

	struct sock *s;

	read_lock(&l2cap_sk_list.lock);
@@ -586,7 +586,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_ 
		goto done;

	}



	if (la->l2_psm > 0 && btohs(la->l2_psm) < 0x1001 &&

	if (la->l2_psm && btohs(la->l2_psm) < 0x1001 &&

				!capable(CAP_NET_BIND_SERVICE)) {

		err = -EACCES;

		goto done;
@@ -873,7 +873,7 @@ static inline int l2cap_do_send(struct sock *sk, struct msghdr *msg, int len) 
	lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));



	if (sk->sk_type == SOCK_DGRAM)

		put_unaligned(l2cap_pi(sk)->psm, (u16 *) skb_put(skb, 2));

		put_unaligned(l2cap_pi(sk)->psm, (__le16 *) skb_put(skb, 2));



	if (memcpy_fromiovec(skb_put(skb, count), msg->msg_iov, count)) {

		err = -EFAULT;
@@ -1256,11 +1256,11 @@ static inline int l2cap_get_conf_opt(void **ptr, int *type, int *olen, unsigned 
		break;



	case 2:

		*val = __le16_to_cpu(*((u16 *)opt->val));

		*val = __le16_to_cpu(*((__le16 *)opt->val));

		break;



	case 4:

		*val = __le32_to_cpu(*((u32 *)opt->val));

		*val = __le32_to_cpu(*((__le32 *)opt->val));

		break;



	default:
@@ -1287,11 +1287,11 @@ static void l2cap_add_conf_opt(void **ptr, u8 type, u8 len, unsigned long val) 
		break;



	case 2:

		*((u16 *) opt->val) = cpu_to_le16(val);

		*((__le16 *) opt->val) = cpu_to_le16(val);

		break;



	case 4:

		*((u32 *) opt->val) = cpu_to_le32(val);

		*((__le32 *) opt->val) = cpu_to_le32(val);

		break;



	default:
@@ -1406,7 +1406,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd 
	int result = 0, status = 0;



	u16 dcid = 0, scid = __le16_to_cpu(req->scid);

	u16 psm  = req->psm;

	__le16 psm  = req->psm;



	BT_DBG("psm 0x%2.2x scid 0x%4.4x", psm, scid);
@@ -1863,7 +1863,7 @@ static inline int l2cap_data_channel(struct l2cap_conn *conn, u16 cid, struct sk 
	return 0;

}



static inline int l2cap_conless_channel(struct l2cap_conn *conn, u16 psm, struct sk_buff *skb)

static inline int l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, struct sk_buff *skb)

{

	struct sock *sk;
@@ -1893,7 +1893,8 @@ static inline int l2cap_conless_channel(struct l2cap_conn *conn, u16 psm, struct 
static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)

{

	struct l2cap_hdr *lh = (void *) skb->data;

	u16 cid, psm, len;

	u16 cid, len;

	__le16 psm;



	skb_pull(skb, L2CAP_HDR_SIZE);

	cid = __le16_to_cpu(lh->cid);
@@ -1907,7 +1908,7 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb) 
		break;



	case 0x0002:

		psm = get_unaligned((u16 *) skb->data);

		psm = get_unaligned((__le16 *) skb->data);

		skb_pull(skb, 2);

		l2cap_conless_channel(conn, psm, skb);

		break;