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can_proto.c revision 1.2 
      1 /*	$NetBSD: can_proto.c,v 1.2 2017/05/27 21:02:56 bouyer Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2003, 2017 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Robert Swindells and Manuel Bouyer
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: can_proto.c,v 1.2 2017/05/27 21:02:56 bouyer Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/socket.h>
     37 #include <sys/protosw.h>
     38 #include <sys/domain.h>
     39 #include <sys/mbuf.h>
     40 
     41 #include <net/if.h>
     42 #include <net/radix.h>
     43 #include <net/route.h>
     44 
     45 /*
     46  * CAN protocol family
     47  */
     48 #include <netcan/can.h>
     49 #include <netcan/can_var.h>
     50 
     51 DOMAIN_DEFINE(candomain);	/* forward declare and add to link set */
     52 
     53 const struct protosw cansw[] = {
     54 {
     55 	.pr_type = SOCK_RAW,
     56 	.pr_domain = &candomain,
     57 	.pr_init = can_init,
     58 	.pr_flags = PR_ATOMIC|PR_ADDR,
     59 	.pr_usrreqs = &can_usrreqs,
     60 	.pr_ctloutput = &can_ctloutput,
     61 }
     62 };
     63 
     64 struct domain candomain = {
     65 	.dom_family = PF_CAN,
     66 	.dom_name = "can",
     67 	.dom_init = can_init,
     68 	.dom_externalize = NULL, .dom_dispose = NULL,
     69 	.dom_protosw = cansw,
     70 	.dom_protoswNPROTOSW = &cansw[__arraycount(cansw)],
     71 	.dom_ifqueues = { &canintrq, NULL },
     72 	.dom_link = { NULL },
     73 	.dom_mowner = MOWNER_INIT("",""),
     74 	.dom_sa_cmpofs = offsetof(struct sockaddr_can, can_ifindex),
     75 	.dom_sa_cmplen = sizeof(int)
     76 };
     77