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_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);