1 /* $OpenBSD: bt_proto.c,v 1.4 2007/06/24 20:55:27 uwe Exp $ */ 2 3 /* 4 * Copyright (c) 2004 Alexander Yurchenko <grange@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/param.h> 20 #include <sys/domain.h> 21 #include <sys/protosw.h> 22 #include <sys/socket.h> 23 #include <sys/socketvar.h> 24 #include <sys/queue.h> 25 #include <sys/kernel.h> 26 #include <sys/mbuf.h> 27 #include <sys/sysctl.h> 28 #include <sys/bus.h> 29 #include <sys/malloc.h> 30 #include <net/if.h> 31 32 #include <netbt/bluetooth.h> 33 #include <netbt/hci.h> 34 #include <netbt/l2cap.h> 35 #include <netbt/rfcomm.h> 36 #include <netbt/sco.h> 37 38 MALLOC_DEFINE(M_BLUETOOTH, "Bluetooth", "Bluetooth system memory"); 39 40 extern struct pr_usrreqs hci_usrreqs; 41 42 static int 43 netbt_modevent(module_t mod, int type, void *data) 44 { 45 switch (type) { 46 case MOD_LOAD: 47 break; 48 case MOD_UNLOAD: 49 return EBUSY; 50 break; 51 default: 52 break; 53 } 54 return 0; 55 } 56 57 static moduledata_t netbt_mod = { 58 "netbt", 59 netbt_modevent, 60 NULL 61 }; 62 63 DECLARE_MODULE(netbt, netbt_mod, SI_SUB_EXEC, SI_ORDER_ANY); 64 MODULE_VERSION(netbt, 1); 65 66 struct domain btdomain; 67 68 struct protosw btsw[] = { 69 { /* raw HCI commands */ 70 .pr_type = SOCK_RAW, 71 .pr_domain = &btdomain, 72 .pr_protocol = BTPROTO_HCI, 73 .pr_flags = (PR_ADDR | PR_ATOMIC), 74 .pr_input = 0, 75 .pr_output = 0, 76 .pr_ctlinput = 0, 77 .pr_ctloutput = hci_ctloutput, 78 .pr_ctlport = NULL, 79 .pr_init = 0, 80 .pr_fasttimo = 0, 81 .pr_slowtimo = 0, 82 .pr_drain = 0, 83 .pr_usrreqs = &hci_usrreqs 84 }, 85 { /* HCI SCO data (audio) */ 86 .pr_type = SOCK_SEQPACKET, 87 .pr_domain = &btdomain, 88 .pr_protocol = BTPROTO_SCO, 89 .pr_flags = (PR_CONNREQUIRED | PR_ATOMIC ), 90 .pr_input = 0, 91 .pr_output = 0, 92 .pr_ctlinput = 0, 93 .pr_ctloutput = sco_ctloutput, 94 .pr_ctlport = NULL, 95 .pr_init = 0, 96 .pr_fasttimo = 0, 97 .pr_slowtimo = 0, 98 .pr_drain = 0, 99 .pr_usrreqs = &sco_usrreqs 100 101 }, 102 { /* L2CAP Connection Oriented */ 103 .pr_type = SOCK_SEQPACKET, 104 .pr_domain = &btdomain, 105 .pr_protocol = BTPROTO_L2CAP, 106 .pr_flags = (PR_CONNREQUIRED | PR_ATOMIC ), 107 .pr_input = 0, 108 .pr_output = 0, 109 .pr_ctlinput = 0, 110 .pr_ctloutput = l2cap_ctloutput, 111 .pr_ctlport = NULL, 112 .pr_init = 0, 113 .pr_fasttimo = 0, 114 .pr_slowtimo = 0, 115 .pr_drain = 0, 116 .pr_usrreqs = &l2cap_usrreqs 117 }, 118 { /* RFCOMM */ 119 .pr_type = SOCK_STREAM, 120 .pr_domain = &btdomain, 121 .pr_protocol = BTPROTO_RFCOMM, 122 .pr_flags = (PR_CONNREQUIRED | PR_WANTRCVD), 123 .pr_input = 0, 124 .pr_output = 0, 125 .pr_ctlinput = 0, 126 .pr_ctloutput = rfcomm_ctloutput, 127 .pr_ctlport = NULL, 128 .pr_init = 0, 129 .pr_fasttimo = 0, 130 .pr_slowtimo = 0, 131 .pr_drain = 0, 132 .pr_usrreqs = &rfcomm_usrreqs 133 }, 134 }; 135 136 static void 137 netbt_dispose(struct mbuf* m) 138 { 139 zdestroy(l2cap_pdu_pool); 140 zdestroy(l2cap_req_pool); 141 zdestroy(rfcomm_credit_pool); 142 } 143 144 static void 145 netbt_init(void) 146 { 147 l2cap_pdu_pool = zinit("l2cap_pdu", sizeof(struct l2cap_pdu), 1, 148 ZONE_DESTROYABLE, 1); 149 if (l2cap_pdu_pool == NULL) 150 goto fail; 151 l2cap_req_pool = zinit("l2cap_req", sizeof(struct l2cap_req), 1, 152 ZONE_DESTROYABLE, 1); 153 if (l2cap_req_pool == NULL) 154 goto fail; 155 rfcomm_credit_pool = zinit("rfcomm_credit", 156 sizeof(struct rfcomm_credit), 1, ZONE_DESTROYABLE, 1); 157 if (rfcomm_credit_pool == NULL) 158 goto fail; 159 return; 160 fail: 161 netbt_dispose(NULL); 162 panic("Can't create vm_zones"); 163 } 164 165 struct domain btdomain = { 166 .dom_family = AF_BLUETOOTH, 167 .dom_name = "bluetooth", 168 .dom_init = netbt_init, 169 .dom_externalize = NULL, 170 .dom_dispose = netbt_dispose, 171 .dom_protosw = btsw, 172 .dom_protoswNPROTOSW = &btsw[NELEM(btsw)], 173 .dom_next = SLIST_ENTRY_INITIALIZER, 174 .dom_rtattach = 0, 175 .dom_rtoffset = 32, 176 .dom_maxrtkey = sizeof(struct sockaddr_bt), 177 .dom_ifattach = 0, 178 .dom_ifdetach = 0, 179 }; 180 181 DOMAIN_SET(bt); 182 SYSCTL_NODE(_net, OID_AUTO, bluetooth, CTLFLAG_RD, 0, 183 "Bluetooth Protocol Family"); 184 185 /* HCI sysctls */ 186 SYSCTL_NODE(_net_bluetooth, OID_AUTO, hci, CTLFLAG_RD, 0, 187 "Host Controller Interface"); 188 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, sendspace, CTLFLAG_RW, &hci_sendspace, 189 0, "Socket Send Buffer Size"); 190 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, recvspace, CTLFLAG_RW, &hci_recvspace, 191 0, "Socket Receive Buffer Size"); 192 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, acl_expiry, CTLFLAG_RW, 193 &hci_acl_expiry, 0, "ACL Connection Expiry Time"); 194 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, memo_expiry, CTLFLAG_RW, 195 &hci_memo_expiry, 0, "Memo Expiry Time"); 196 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, eventq_max, CTLFLAG_RW, 197 &hci_eventq_max, 0, "Max Event queue length"); 198 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, aclrxq_max, CTLFLAG_RW, 199 &hci_aclrxq_max, 0, "Max ACL rx queue length"); 200 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, scorxq_max, CTLFLAG_RW, 201 &hci_scorxq_max, 0, "Max SCO rx queue length"); 202 203 /* L2CAP sysctls */ 204 SYSCTL_NODE(_net_bluetooth, OID_AUTO, l2cap, CTLFLAG_RD, 0, 205 "Logical Link Control & Adaptation Protocol"); 206 SYSCTL_INT(_net_bluetooth_l2cap, OID_AUTO, sendspace, CTLFLAG_RW, 207 &l2cap_sendspace, 0, "Socket Send Buffer Size"); 208 SYSCTL_INT(_net_bluetooth_l2cap, OID_AUTO, recvspace, CTLFLAG_RW, 209 &l2cap_recvspace, 0, "Socket Receive Buffer Size"); 210 SYSCTL_INT(_net_bluetooth_l2cap, OID_AUTO, rtx, CTLFLAG_RW, 211 &l2cap_response_timeout, 0, "Response Timeout"); 212 SYSCTL_INT(_net_bluetooth_l2cap, OID_AUTO, ertx, CTLFLAG_RW, 213 &l2cap_response_extended_timeout, 0, "Extended Response Timeout"); 214 215 /* RFCOMM sysctls */ 216 SYSCTL_NODE(_net_bluetooth, OID_AUTO, rfcomm, CTLFLAG_RD, 0, 217 "Serial Cable Emulation"); 218 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, sendspace, CTLFLAG_RW, 219 &rfcomm_sendspace, 0, "Socket Send Buffer Size"); 220 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, recvspace, CTLFLAG_RW, 221 &rfcomm_recvspace, 0, "Socket Receive Buffer Size"); 222 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, mtu_default, CTLFLAG_RW, 223 &rfcomm_mtu_default, 0, "Default MTU"); 224 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, ack_timeout, CTLFLAG_RW, 225 &rfcomm_ack_timeout, 0, "Acknowledgement Timer"); 226 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, mcc_timeout, CTLFLAG_RW, 227 &rfcomm_mcc_timeout, 0, "Response Timeout for Multiplexer Control Channel"); 228 229 /* SCO sysctls */ 230 SYSCTL_NODE(_net_bluetooth, OID_AUTO, sco, CTLFLAG_RD, 0, "SCO data"); 231 SYSCTL_INT(_net_bluetooth_sco, OID_AUTO, sendspace, CTLFLAG_RW, &sco_sendspace, 232 0, "Socket Send Buffer Size"); 233 SYSCTL_INT(_net_bluetooth_sco, OID_AUTO, recvspace, CTLFLAG_RW, &sco_recvspace, 234 0, "Socket Receive Buffer Size"); 235 236 static void 237 netisr_netbt_setup(void *dummy __unused) 238 { 239 netisr_register(NETISR_BLUETOOTH, btintr, NULL); 240 } 241 242 SYSINIT(netbt_setup, SI_BOOT2_KLD, SI_ORDER_ANY, netisr_netbt_setup, NULL); 243