1/* $NetBSD: bt_proto.c,v 1.17 2023/08/07 13:31:54 riastradh Exp $ */ 2 3/*- 4 * Copyright (c) 2005 Iain Hibbert. 5 * Copyright (c) 2006 Itronix Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of Itronix Inc. may not be used to endorse 17 * or promote products derived from this software without specific 18 * prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY 24 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 27 * ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__KERNEL_RCSID(0, "$NetBSD: bt_proto.c,v 1.17 2023/08/07 13:31:54 riastradh Exp $"); 35 36#include <sys/param.h> 37#include <sys/domain.h> 38#include <sys/kernel.h> 39#include <sys/module.h> 40#include <sys/protosw.h> 41#include <sys/socket.h> 42#include <sys/systm.h> 43 44#include <net/route.h> 45 46#include <netbt/bluetooth.h> 47#include <netbt/hci.h> 48#include <netbt/l2cap.h> 49#include <netbt/rfcomm.h> 50#include <netbt/sco.h> 51 52DOMAIN_DEFINE(btdomain); /* forward declare and add to link set */ 53 54static void bt_init(void); 55 56PR_WRAP_CTLOUTPUT(hci_ctloutput) 57PR_WRAP_CTLOUTPUT(sco_ctloutput) 58PR_WRAP_CTLOUTPUT(l2cap_ctloutput) 59PR_WRAP_CTLOUTPUT(rfcomm_ctloutput) 60 61#define hci_ctloutput hci_ctloutput_wrapper 62#define sco_ctloutput sco_ctloutput_wrapper 63#define l2cap_ctloutput l2cap_ctloutput_wrapper 64#define rfcomm_ctloutput rfcomm_ctloutput_wrapper 65 66static const struct protosw btsw[] = { 67 { /* raw HCI commands */ 68 .pr_type = SOCK_RAW, 69 .pr_domain = &btdomain, 70 .pr_protocol = BTPROTO_HCI, 71 .pr_flags = (PR_ADDR | PR_ATOMIC), 72 .pr_init = hci_init, 73 .pr_ctloutput = hci_ctloutput, 74 .pr_usrreqs = &hci_usrreqs, 75 }, 76 { /* HCI SCO data (audio) */ 77 .pr_type = SOCK_SEQPACKET, 78 .pr_domain = &btdomain, 79 .pr_protocol = BTPROTO_SCO, 80 .pr_flags = (PR_CONNREQUIRED | PR_ATOMIC | PR_LISTEN), 81 .pr_ctloutput = sco_ctloutput, 82 .pr_usrreqs = &sco_usrreqs, 83 }, 84 { /* L2CAP Connection Oriented */ 85 .pr_type = SOCK_SEQPACKET, 86 .pr_domain = &btdomain, 87 .pr_protocol = BTPROTO_L2CAP, 88 .pr_flags = (PR_CONNREQUIRED | PR_ATOMIC | PR_LISTEN), 89 .pr_ctloutput = l2cap_ctloutput, 90 .pr_usrreqs = &l2cap_usrreqs, 91 .pr_init = l2cap_init, 92 }, 93 { /* RFCOMM */ 94 .pr_type = SOCK_STREAM, 95 .pr_domain = &btdomain, 96 .pr_protocol = BTPROTO_RFCOMM, 97 .pr_flags = (PR_CONNREQUIRED | PR_LISTEN | PR_WANTRCVD), 98 .pr_ctloutput = rfcomm_ctloutput, 99 .pr_usrreqs = &rfcomm_usrreqs, 100 .pr_init = rfcomm_init, 101 }, 102}; 103 104struct domain btdomain = { 105 .dom_family = AF_BLUETOOTH, 106 .dom_name = "bluetooth", 107 .dom_init = bt_init, 108 .dom_protosw = btsw, 109 .dom_protoswNPROTOSW = &btsw[__arraycount(btsw)], 110}; 111 112kmutex_t *bt_lock; 113 114static void 115bt_init(void) 116{ 117} 118 119MODULE(MODULE_CLASS_DRIVER, netbt, NULL); 120 121static int 122netbt_modcmd(modcmd_t cmd, void *aux) 123{ 124 125 switch (cmd) { 126 case MODULE_CMD_INIT: 127 bt_lock = mutex_obj_alloc(MUTEX_DEFAULT, IPL_NONE); 128 return 0; 129 case MODULE_CMD_FINI: 130 return EBUSY; /* XXX */ 131 default: 132 return ENOTTY; 133 } 134} 135