a152f8a361
function, pru_close, to notify protocols that the file descriptor or other consumer of a socket is closing the socket. pru_abort is now a notification of close also, and no longer detaches. pru_detach is no longer used to notify of close, and will be called during socket tear-down by sofree() when all references to a socket evaporate after an earlier call to abort or close the socket. This means detach is now an unconditional teardown of a socket, whereas previously sockets could persist after detach of the protocol retained a reference. This faciliates sharing mutexes between layers of the network stack as the mutex is required during the checking and removal of references at the head of sofree(). With this change, pru_detach can now assume that the mutex will no longer be required by the socket layer after completion, whereas before this was not necessarily true. Reviewed by: gnn
211 lines
8.3 KiB
C
211 lines
8.3 KiB
C
/*
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* ng_btsocket_l2cap.h
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*/
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/*-
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* Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: ng_btsocket_l2cap.h,v 1.4 2003/03/25 23:53:33 max Exp $
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* $FreeBSD$
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*/
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#ifndef _NETGRAPH_BTSOCKET_L2CAP_H_
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#define _NETGRAPH_BTSOCKET_L2CAP_H_
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/*
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* L2CAP routing entry
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*/
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struct ng_hook;
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struct ng_message;
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struct ng_btsocket_l2cap_rtentry {
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bdaddr_t src; /* source BD_ADDR */
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struct ng_hook *hook; /* downstream hook */
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LIST_ENTRY(ng_btsocket_l2cap_rtentry) next; /* link to next */
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};
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typedef struct ng_btsocket_l2cap_rtentry ng_btsocket_l2cap_rtentry_t;
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typedef struct ng_btsocket_l2cap_rtentry * ng_btsocket_l2cap_rtentry_p;
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/*****************************************************************************
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*****************************************************************************
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** SOCK_RAW L2CAP sockets **
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*****************************************************************************
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*****************************************************************************/
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#define NG_BTSOCKET_L2CAP_RAW_SENDSPACE NG_L2CAP_MTU_DEFAULT
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#define NG_BTSOCKET_L2CAP_RAW_RECVSPACE NG_L2CAP_MTU_DEFAULT
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/*
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* Bluetooth raw L2CAP socket PCB
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*/
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struct ng_btsocket_l2cap_raw_pcb {
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struct socket *so; /* socket */
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u_int32_t flags; /* flags */
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#define NG_BTSOCKET_L2CAP_RAW_PRIVILEGED (1 << 0)
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bdaddr_t src; /* source address */
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bdaddr_t dst; /* dest address */
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ng_btsocket_l2cap_rtentry_p rt; /* routing info */
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u_int32_t token; /* message token */
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struct ng_mesg *msg; /* message */
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struct mtx pcb_mtx; /* pcb mutex */
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LIST_ENTRY(ng_btsocket_l2cap_raw_pcb) next; /* link to next PCB */
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};
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typedef struct ng_btsocket_l2cap_raw_pcb ng_btsocket_l2cap_raw_pcb_t;
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typedef struct ng_btsocket_l2cap_raw_pcb * ng_btsocket_l2cap_raw_pcb_p;
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#define so2l2cap_raw_pcb(so) \
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((struct ng_btsocket_l2cap_raw_pcb *)((so)->so_pcb))
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/*
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* Bluetooth raw L2CAP socket methods
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*/
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#ifdef _KERNEL
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void ng_btsocket_l2cap_raw_init (void);
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void ng_btsocket_l2cap_raw_abort (struct socket *);
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void ng_btsocket_l2cap_raw_close (struct socket *);
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int ng_btsocket_l2cap_raw_attach (struct socket *, int, struct thread *);
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int ng_btsocket_l2cap_raw_bind (struct socket *, struct sockaddr *,
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struct thread *);
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int ng_btsocket_l2cap_raw_connect (struct socket *, struct sockaddr *,
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struct thread *);
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int ng_btsocket_l2cap_raw_control (struct socket *, u_long, caddr_t,
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struct ifnet *, struct thread *);
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void ng_btsocket_l2cap_raw_detach (struct socket *);
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int ng_btsocket_l2cap_raw_disconnect (struct socket *);
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int ng_btsocket_l2cap_raw_peeraddr (struct socket *, struct sockaddr **);
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int ng_btsocket_l2cap_raw_send (struct socket *, int, struct mbuf *,
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struct sockaddr *, struct mbuf *,
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struct thread *);
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int ng_btsocket_l2cap_raw_sockaddr (struct socket *, struct sockaddr **);
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#endif /* _KERNEL */
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/*****************************************************************************
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*****************************************************************************
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** SOCK_SEQPACKET L2CAP sockets **
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*****************************************************************************
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*****************************************************************************/
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#define NG_BTSOCKET_L2CAP_SENDSPACE NG_L2CAP_MTU_DEFAULT /* (64 * 1024) */
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#define NG_BTSOCKET_L2CAP_RECVSPACE (64 * 1024)
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/*
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* Bluetooth L2CAP socket PCB
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*/
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struct ng_btsocket_l2cap_pcb {
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struct socket *so; /* Pointer to socket */
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bdaddr_t src; /* Source address */
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bdaddr_t dst; /* Destination address */
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u_int16_t psm; /* PSM */
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u_int16_t cid; /* Local channel ID */
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u_int16_t flags; /* socket flags */
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#define NG_BTSOCKET_L2CAP_CLIENT (1 << 0) /* socket is client */
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#define NG_BTSOCKET_L2CAP_TIMO (1 << 1) /* timeout pending */
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u_int8_t state; /* socket state */
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#define NG_BTSOCKET_L2CAP_CLOSED 0 /* socket closed */
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#define NG_BTSOCKET_L2CAP_CONNECTING 1 /* wait for connect */
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#define NG_BTSOCKET_L2CAP_CONFIGURING 2 /* wait for config */
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#define NG_BTSOCKET_L2CAP_OPEN 3 /* socket open */
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#define NG_BTSOCKET_L2CAP_DISCONNECTING 4 /* wait for disconnect */
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u_int8_t cfg_state; /* config state */
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#define NG_BTSOCKET_L2CAP_CFG_IN (1 << 0) /* incoming path done */
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#define NG_BTSOCKET_L2CAP_CFG_OUT (1 << 1) /* outgoing path done */
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#define NG_BTSOCKET_L2CAP_CFG_BOTH \
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(NG_BTSOCKET_L2CAP_CFG_IN | NG_BTSOCKET_L2CAP_CFG_OUT)
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#define NG_BTSOCKET_L2CAP_CFG_IN_SENT (1 << 2) /* L2CAP ConfigReq sent */
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#define NG_BTSOCKET_L2CAP_CFG_OUT_SENT (1 << 3) /* ---/--- */
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u_int16_t imtu; /* Incoming MTU */
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ng_l2cap_flow_t iflow; /* Input flow spec */
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u_int16_t omtu; /* Outgoing MTU */
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ng_l2cap_flow_t oflow; /* Outgoing flow spec */
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u_int16_t flush_timo; /* flush timeout */
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u_int16_t link_timo; /* link timeout */
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struct callout_handle timo; /* timeout */
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u_int32_t token; /* message token */
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ng_btsocket_l2cap_rtentry_p rt; /* routing info */
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struct mtx pcb_mtx; /* pcb mutex */
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LIST_ENTRY(ng_btsocket_l2cap_pcb) next; /* link to next PCB */
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};
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typedef struct ng_btsocket_l2cap_pcb ng_btsocket_l2cap_pcb_t;
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typedef struct ng_btsocket_l2cap_pcb * ng_btsocket_l2cap_pcb_p;
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#define so2l2cap_pcb(so) \
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((struct ng_btsocket_l2cap_pcb *)((so)->so_pcb))
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/*
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* Bluetooth L2CAP socket methods
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*/
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#ifdef _KERNEL
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void ng_btsocket_l2cap_init (void);
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void ng_btsocket_l2cap_abort (struct socket *);
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void ng_btsocket_l2cap_close (struct socket *);
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int ng_btsocket_l2cap_accept (struct socket *, struct sockaddr **);
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int ng_btsocket_l2cap_attach (struct socket *, int, struct thread *);
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int ng_btsocket_l2cap_bind (struct socket *, struct sockaddr *,
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struct thread *);
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int ng_btsocket_l2cap_connect (struct socket *, struct sockaddr *,
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struct thread *);
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int ng_btsocket_l2cap_control (struct socket *, u_long, caddr_t,
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struct ifnet *, struct thread *);
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int ng_btsocket_l2cap_ctloutput (struct socket *, struct sockopt *);
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void ng_btsocket_l2cap_detach (struct socket *);
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int ng_btsocket_l2cap_disconnect (struct socket *);
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int ng_btsocket_l2cap_listen (struct socket *, int, struct thread *);
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int ng_btsocket_l2cap_peeraddr (struct socket *, struct sockaddr **);
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int ng_btsocket_l2cap_send (struct socket *, int, struct mbuf *,
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struct sockaddr *, struct mbuf *,
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struct thread *);
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int ng_btsocket_l2cap_sockaddr (struct socket *, struct sockaddr **);
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#endif /* _KERNEL */
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#endif /* _NETGRAPH_BTSOCKET_L2CAP_H_ */
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