freebsd-dev/sys/netgraph/bluetooth/include/ng_btsocket_hci_raw.h
Robert Watson bc725eafc7 Chance protocol switch method pru_detach() so that it returns void
rather than an error.  Detaches do not "fail", they other occur or
the protocol flags SS_PROTOREF to take ownership of the socket.

soclose() no longer looks at so_pcb to see if it's NULL, relying
entirely on the protocol to decide whether it's time to free the
socket or not using SS_PROTOREF.  so_pcb is now entirely owned and
managed by the protocol code.  Likewise, no longer test so_pcb in
other socket functions, such as soreceive(), which have no business
digging into protocol internals.

Protocol detach routines no longer try to free the socket on detach,
this is performed in the socket code if the protocol permits it.

In rts_detach(), no longer test for rp != NULL in detach, and
likewise in other protocols that don't permit a NULL so_pcb, reduce
the incidence of testing for it during detach.

netinet and netinet6 are not fully updated to this change, which
will be in an upcoming commit.  In their current state they may leak
memory or panic.

MFC after:	3 months
2006-04-01 15:42:02 +00:00

90 lines
3.6 KiB
C

/*
* ng_btsocket_hci_raw.h
*/
/*-
* Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: ng_btsocket_hci_raw.h,v 1.3 2003/03/25 23:53:32 max Exp $
* $FreeBSD$
*/
#ifndef _NETGRAPH_BTSOCKET_HCI_RAW_H_
#define _NETGRAPH_BTSOCKET_HCI_RAW_H_
#define NG_BTSOCKET_HCI_RAW_SENDSPACE (4 * 1024)
#define NG_BTSOCKET_HCI_RAW_RECVSPACE (4 * 1024)
/*
* Bluetooth raw HCI socket PCB
*/
struct ng_btsocket_hci_raw_pcb {
struct socket *so; /* socket */
u_int32_t flags; /* flags */
#define NG_BTSOCKET_HCI_RAW_DIRECTION (1 << 0)
#define NG_BTSOCKET_HCI_RAW_PRIVILEGED (1 << 1)
struct sockaddr_hci addr; /* local address */
struct ng_btsocket_hci_raw_filter filter; /* filter */
u_int32_t token; /* message token */
struct ng_mesg *msg; /* message */
LIST_ENTRY(ng_btsocket_hci_raw_pcb) next; /* link to next */
struct mtx pcb_mtx; /* pcb mutex */
};
typedef struct ng_btsocket_hci_raw_pcb ng_btsocket_hci_raw_pcb_t;
typedef struct ng_btsocket_hci_raw_pcb * ng_btsocket_hci_raw_pcb_p;
#define so2hci_raw_pcb(so) \
((struct ng_btsocket_hci_raw_pcb *)((so)->so_pcb))
/*
* Bluetooth raw HCI socket methods
*/
#ifdef _KERNEL
void ng_btsocket_hci_raw_init (void);
void ng_btsocket_hci_raw_abort (struct socket *);
int ng_btsocket_hci_raw_attach (struct socket *, int, struct thread *);
int ng_btsocket_hci_raw_bind (struct socket *, struct sockaddr *,
struct thread *);
int ng_btsocket_hci_raw_connect (struct socket *, struct sockaddr *,
struct thread *);
int ng_btsocket_hci_raw_control (struct socket *, u_long, caddr_t,
struct ifnet *, struct thread *);
int ng_btsocket_hci_raw_ctloutput (struct socket *, struct sockopt *);
void ng_btsocket_hci_raw_detach (struct socket *);
int ng_btsocket_hci_raw_disconnect (struct socket *);
int ng_btsocket_hci_raw_peeraddr (struct socket *, struct sockaddr **);
int ng_btsocket_hci_raw_send (struct socket *, int, struct mbuf *,
struct sockaddr *, struct mbuf *,
struct thread *);
int ng_btsocket_hci_raw_sockaddr (struct socket *, struct sockaddr **);
#endif /* _KERNEL */
#endif /* ndef _NETGRAPH_BTSOCKET_HCI_RAW_H_ */