can_pcb.h revision 1.2
1 1.2 bouyer /* $NetBSD: can_pcb.h,v 1.2 2017/05/27 21:02:56 bouyer Exp $ */ 2 1.2 bouyer 3 1.2 bouyer /*- 4 1.2 bouyer * Copyright (c) 2003, 2017 The NetBSD Foundation, Inc. 5 1.2 bouyer * All rights reserved. 6 1.2 bouyer * 7 1.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.2 bouyer * by Robert Swindells and Manuel Bouyer 9 1.2 bouyer * 10 1.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.2 bouyer * modification, are permitted provided that the following conditions 12 1.2 bouyer * are met: 13 1.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.2 bouyer * 19 1.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 30 1.2 bouyer */ 31 1.2 bouyer 32 1.2 bouyer #ifndef _NETCAN_CAN_PCB_H_ 33 1.2 bouyer #define _NETCAN_CAN_PCB_H_ 34 1.2 bouyer 35 1.2 bouyer #include <sys/queue.h> 36 1.2 bouyer 37 1.2 bouyer /* 38 1.2 bouyer * Common structure pcb for can protocol implementation. 39 1.2 bouyer * Here are stored pointers to local and foreign host table 40 1.2 bouyer * entries, local and foreign socket numbers, and pointers 41 1.2 bouyer * up (to a socket structure) and down (to a protocol-specific) 42 1.2 bouyer * control block. 43 1.2 bouyer */ 44 1.2 bouyer struct canpcbpolicy; 45 1.2 bouyer 46 1.2 bouyer 47 1.2 bouyer struct canpcb { 48 1.2 bouyer LIST_ENTRY(canpcb) canp_hash; 49 1.2 bouyer LIST_ENTRY(canpcb) canp_lhash; 50 1.2 bouyer TAILQ_ENTRY(canpcb) canp_queue; 51 1.2 bouyer kmutex_t canp_mtx; /* protect states and refcount */ 52 1.2 bouyer int canp_state; 53 1.2 bouyer int canp_flags; 54 1.2 bouyer struct socket *canp_socket; /* back pointer to socket */ 55 1.2 bouyer struct ifnet *canp_ifp; /* interface this socket is bound to */ 56 1.2 bouyer 57 1.2 bouyer struct canpcbtable *canp_table; 58 1.2 bouyer struct can_filter *canp_filters; /* filter array */ 59 1.2 bouyer int canp_nfilters; /* size of canp_filters */ 60 1.2 bouyer 61 1.2 bouyer int canp_refcount; 62 1.2 bouyer }; 63 1.2 bouyer 64 1.2 bouyer LIST_HEAD(canpcbhead, canpcb); 65 1.2 bouyer 66 1.2 bouyer TAILQ_HEAD(canpcbqueue, canpcb); 67 1.2 bouyer 68 1.2 bouyer struct canpcbtable { 69 1.2 bouyer struct canpcbqueue canpt_queue; 70 1.2 bouyer struct canpcbhead *canpt_bindhashtbl; 71 1.2 bouyer struct canpcbhead *canpt_connecthashtbl; 72 1.2 bouyer u_long canpt_bindhash; 73 1.2 bouyer u_long canpt_connecthash; 74 1.2 bouyer }; 75 1.2 bouyer 76 1.2 bouyer /* states in canp_state: */ 77 1.2 bouyer #define CANP_DETACHED 0 78 1.2 bouyer #define CANP_ATTACHED 1 79 1.2 bouyer #define CANP_BOUND 2 80 1.2 bouyer #define CANP_CONNECTED 3 81 1.2 bouyer 82 1.2 bouyer /* flags in canp_flags: */ 83 1.2 bouyer #define CANP_NO_LOOPBACK 0x0001 /* local loopback disabled */ 84 1.2 bouyer #define CANP_RECEIVE_OWN 0x0002 /* receive own message */ 85 1.2 bouyer 86 1.2 bouyer 87 1.2 bouyer #define sotocanpcb(so) ((struct canpcb *)(so)->so_pcb) 88 1.2 bouyer 89 1.2 bouyer #ifdef _KERNEL 90 1.2 bouyer void can_losing(struct canpcb *); 91 1.2 bouyer int can_pcballoc (struct socket *, void *); 92 1.2 bouyer int can_pcbbind(void *, struct sockaddr_can *, struct lwp *); 93 1.2 bouyer int can_pcbconnect(void *, struct sockaddr_can *); 94 1.2 bouyer void can_pcbdetach(void *); 95 1.2 bouyer void can_pcbdisconnect(void *); 96 1.2 bouyer void can_pcbinit(struct canpcbtable *, int, int); 97 1.2 bouyer int can_pcbnotify(struct canpcbtable *, u_int32_t, 98 1.2 bouyer u_int32_t, int, void (*)(struct canpcb *, int)); 99 1.2 bouyer void can_pcbnotifyall(struct canpcbtable *, u_int32_t, int, 100 1.2 bouyer void (*)(struct canpcb *, int)); 101 1.2 bouyer void can_pcbpurgeif0(struct canpcbtable *, struct ifnet *); 102 1.2 bouyer void can_pcbpurgeif(struct canpcbtable *, struct ifnet *); 103 1.2 bouyer void can_pcbstate(struct canpcb *, int); 104 1.2 bouyer void can_setsockaddr(struct canpcb *, struct sockaddr_can *); 105 1.2 bouyer int can_pcbsetfilter(struct canpcb *, struct can_filter *, int); 106 1.2 bouyer bool can_pcbfilter(struct canpcb *, struct mbuf *); 107 1.2 bouyer 108 1.2 bouyer /* refcount management */ 109 1.2 bouyer void canp_ref(struct canpcb *); 110 1.2 bouyer void canp_unref(struct canpcb *); 111 1.2 bouyer #endif 112 1.2 bouyer 113 1.2 bouyer #endif /* _NETCAN_CAN_PCB_H_ */ 114
Indexes created Tue Sep 23 14:10:03 GMT 2025