sys/netbt/bt_proto.c

   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_drain = 0,
  81                 .pr_usrreqs = &hci_usrreqs
  82         },
  83         { /* HCI SCO data (audio) */
  84                 .pr_type = SOCK_SEQPACKET,
  85                 .pr_domain = &btdomain,
  86                 .pr_protocol = BTPROTO_SCO,
  87                 .pr_flags = (PR_CONNREQUIRED | PR_ATOMIC ),
  88                 .pr_input = 0,
  89                 .pr_output = 0,
  90                 .pr_ctlinput = 0,
  91                 .pr_ctloutput = sco_ctloutput,
  92                 .pr_ctlport = NULL,
  93                 .pr_init = 0,
  94                 .pr_drain = 0,
  95                 .pr_usrreqs = &sco_usrreqs
  96
  97         },
  98         { /* L2CAP Connection Oriented */
  99                 .pr_type = SOCK_SEQPACKET,
 100                 .pr_domain = &btdomain,
 101                 .pr_protocol = BTPROTO_L2CAP,
 102                 .pr_flags = (PR_CONNREQUIRED | PR_ATOMIC ),
 103                 .pr_input = 0,
 104                 .pr_output = 0,
 105                 .pr_ctlinput = 0,
 106                 .pr_ctloutput = l2cap_ctloutput,
 107                 .pr_ctlport = NULL,
 108                 .pr_init = 0,
 109                 .pr_drain = 0,
 110                 .pr_usrreqs = &l2cap_usrreqs
 111         },
 112         { /* RFCOMM */
 113                 .pr_type = SOCK_STREAM,
 114                 .pr_domain = &btdomain,
 115                 .pr_protocol = BTPROTO_RFCOMM,
 116                 .pr_flags = (PR_CONNREQUIRED | PR_WANTRCVD),
 117                 .pr_input = 0,
 118                 .pr_output = 0,
 119                 .pr_ctlinput = 0,
 120                 .pr_ctloutput = rfcomm_ctloutput,
 121                 .pr_ctlport = NULL,
 122                 .pr_init = 0,
 123                 .pr_drain = 0,
 124                 .pr_usrreqs = &rfcomm_usrreqs
 125         },
 126 };
 127
 128 static void
 129 netbt_dispose(struct mbuf* m)
 130 {
 131         zdestroy(l2cap_pdu_pool);
 132         zdestroy(l2cap_req_pool);
 133         zdestroy(rfcomm_credit_pool);
 134 }
 135
 136 static void
 137 netbt_init(void)
 138 {
 139         l2cap_pdu_pool = zinit("l2cap_pdu", sizeof(struct l2cap_pdu), 1,
 140                                ZONE_DESTROYABLE);
 141         if (l2cap_pdu_pool == NULL)
 142                 goto fail;
 143         l2cap_req_pool = zinit("l2cap_req", sizeof(struct l2cap_req), 1,
 144                                ZONE_DESTROYABLE);
 145         if (l2cap_req_pool == NULL)
 146                 goto fail;
 147         rfcomm_credit_pool = zinit("rfcomm_credit",
 148                                    sizeof(struct rfcomm_credit), 1,
 149                                    ZONE_DESTROYABLE);
 150         if (rfcomm_credit_pool == NULL)
 151                 goto fail;
 152         return;
 153 fail:
 154         netbt_dispose(NULL);
 155         panic("Can't create vm_zones");
 156 }
 157
 158 struct domain btdomain = {
 159         .dom_family = AF_BLUETOOTH,
 160         .dom_name = "bluetooth",
 161         .dom_init = netbt_init,
 162         .dom_externalize = NULL,
 163         .dom_dispose = netbt_dispose,
 164         .dom_protosw = btsw,
 165         .dom_protoswNPROTOSW = &btsw[NELEM(btsw)],
 166         .dom_next = SLIST_ENTRY_INITIALIZER,
 167         .dom_rtattach = 0,
 168         .dom_rtoffset = 32,
 169         .dom_maxrtkey = sizeof(struct sockaddr_bt),
 170         .dom_ifattach = 0,
 171         .dom_ifdetach = 0,
 172 };
 173
 174 DOMAIN_SET(bt);
 175 SYSCTL_NODE(_net, OID_AUTO, bluetooth, CTLFLAG_RD, 0,
 176     "Bluetooth Protocol Family");
 177
 178 /* HCI sysctls */
 179 SYSCTL_NODE(_net_bluetooth, OID_AUTO, hci, CTLFLAG_RD, 0,
 180     "Host Controller Interface");
 181 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, sendspace, CTLFLAG_RW, &hci_sendspace,
 182     0, "Socket Send Buffer Size");
 183 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, recvspace, CTLFLAG_RW, &hci_recvspace,
 184     0, "Socket Receive Buffer Size");
 185 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, acl_expiry, CTLFLAG_RW,
 186     &hci_acl_expiry, 0, "ACL Connection Expiry Time");
 187 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, memo_expiry, CTLFLAG_RW,
 188     &hci_memo_expiry, 0, "Memo Expiry Time");
 189 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, eventq_max, CTLFLAG_RW,
 190     &hci_eventq_max, 0, "Max Event queue length");
 191 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, aclrxq_max, CTLFLAG_RW,
 192     &hci_aclrxq_max, 0, "Max ACL rx queue length");
 193 SYSCTL_INT(_net_bluetooth_hci, OID_AUTO, scorxq_max, CTLFLAG_RW,
 194     &hci_scorxq_max, 0, "Max SCO rx queue length");
 195
 196 /* L2CAP sysctls */
 197 SYSCTL_NODE(_net_bluetooth, OID_AUTO, l2cap, CTLFLAG_RD, 0,
 198     "Logical Link Control & Adaptation Protocol");
 199 SYSCTL_INT(_net_bluetooth_l2cap, OID_AUTO, sendspace, CTLFLAG_RW,
 200     &l2cap_sendspace, 0, "Socket Send Buffer Size");
 201 SYSCTL_INT(_net_bluetooth_l2cap, OID_AUTO, recvspace, CTLFLAG_RW,
 202     &l2cap_recvspace, 0, "Socket Receive Buffer Size");
 203 SYSCTL_INT(_net_bluetooth_l2cap, OID_AUTO, rtx, CTLFLAG_RW,
 204     &l2cap_response_timeout, 0, "Response Timeout");
 205 SYSCTL_INT(_net_bluetooth_l2cap, OID_AUTO, ertx, CTLFLAG_RW,
 206     &l2cap_response_extended_timeout, 0, "Extended Response Timeout");
 207
 208 /* RFCOMM sysctls */
 209 SYSCTL_NODE(_net_bluetooth, OID_AUTO, rfcomm, CTLFLAG_RD, 0,
 210     "Serial Cable Emulation");
 211 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, sendspace, CTLFLAG_RW,
 212     &rfcomm_sendspace, 0, "Socket Send Buffer Size");
 213 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, recvspace, CTLFLAG_RW,
 214     &rfcomm_recvspace, 0, "Socket Receive Buffer Size");
 215 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, mtu_default, CTLFLAG_RW,
 216     &rfcomm_mtu_default, 0, "Default MTU");
 217 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, ack_timeout, CTLFLAG_RW,
 218     &rfcomm_ack_timeout, 0, "Acknowledgement Timer");
 219 SYSCTL_INT(_net_bluetooth_rfcomm, OID_AUTO, mcc_timeout, CTLFLAG_RW,
 220     &rfcomm_mcc_timeout, 0, "Response Timeout for Multiplexer Control Channel");
 221
 222 /* SCO sysctls */
 223 SYSCTL_NODE(_net_bluetooth, OID_AUTO, sco, CTLFLAG_RD, 0, "SCO data");
 224 SYSCTL_INT(_net_bluetooth_sco, OID_AUTO, sendspace, CTLFLAG_RW, &sco_sendspace,
 225     0, "Socket Send Buffer Size");
 226 SYSCTL_INT(_net_bluetooth_sco, OID_AUTO, recvspace, CTLFLAG_RW, &sco_recvspace,
 227     0, "Socket Receive Buffer Size");
 228
 229 static void
 230 netisr_netbt_setup(void *dummy __unused)
 231 {
 232         netisr_register(NETISR_BLUETOOTH, btintr, NULL);
 233 }
 234
 235 SYSINIT(netbt_setup, SI_BOOT2_KLD, SI_ORDER_ANY, netisr_netbt_setup, NULL);