sys/netbt/hci_ioctl.c

   1 /* $DragonFly: src/sys/netbt/hci_ioctl.c,v 1.2 2008/03/18 13:41:42 hasso Exp $ */
   2 /* $OpenBSD: src/sys/netbt/hci_ioctl.c,v 1.2 2008/02/24 21:34:48 uwe Exp $ */
   3 /* $NetBSD: hci_ioctl.c,v 1.7 2007/11/28 20:16:12 plunky Exp $ */
   4
   5 /*-
   6  * Copyright (c) 2005 Iain Hibbert.
   7  * Copyright (c) 2006 Itronix Inc.
   8  * All rights reserved.
   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  * 3. The name of Itronix Inc. may not be used to endorse
  19  *    or promote products derived from this software without specific
  20  *    prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
  26  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  29  * ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/param.h>
  36 #include <sys/domain.h>
  37 #include <sys/ioccom.h>
  38 #include <sys/kernel.h>
  39 #include <sys/mbuf.h>
  40 #include <sys/proc.h>
  41 #include <sys/priv.h>
  42 #include <sys/systm.h>
  43 #include <sys/thread2.h>
  44 #include <sys/bus.h>
  45
  46 #include <netbt/bluetooth.h>
  47 #include <netbt/hci.h>
  48 #include <netbt/l2cap.h>
  49 #include <netbt/rfcomm.h>
  50
  51 #ifdef BLUETOOTH_DEBUG
  52 #define BDADDR(bd)      (bd).b[5], (bd).b[4], (bd).b[3],        \
  53                         (bd).b[2], (bd).b[1], (bd).b[0]
  54
  55 static void
  56 hci_dump(void)
  57 {
  58         struct hci_unit *unit;
  59         struct hci_link *link;
  60         struct l2cap_channel *chan;
  61         struct rfcomm_session *rs;
  62         struct rfcomm_dlc *dlc;
  63
  64         kprintf("HCI:\n");
  65         TAILQ_FOREACH(unit, &hci_unit_list, hci_next) {
  66                 kprintf("UNIT %s: flags 0x%4.4x, "
  67                         "num_cmd=%d, num_acl=%d, num_sco=%d\n",
  68                         device_get_nameunit(unit->hci_dev), unit->hci_flags,
  69                         unit->hci_num_cmd_pkts,
  70                         unit->hci_num_acl_pkts,
  71                         unit->hci_num_sco_pkts);
  72                 TAILQ_FOREACH(link, &unit->hci_links, hl_next) {
  73                         kprintf("+HANDLE #%d: %s "
  74                             "raddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
  75                             "state %d, refcnt %d\n",
  76                             link->hl_handle,
  77                             (link->hl_type == HCI_LINK_ACL ? "ACL":"SCO"),
  78                             BDADDR(link->hl_bdaddr),
  79                             link->hl_state, link->hl_refcnt);
  80                 }
  81         }
  82
  83         kprintf("L2CAP:\n");
  84         LIST_FOREACH(chan, &l2cap_active_list, lc_ncid) {
  85                 kprintf("CID #%d state %d, psm=0x%4.4x, "
  86                     "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
  87                     "raddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
  88                     chan->lc_lcid, chan->lc_state, chan->lc_raddr.bt_psm,
  89                     BDADDR(chan->lc_laddr.bt_bdaddr),
  90                     BDADDR(chan->lc_raddr.bt_bdaddr));
  91         }
  92
  93         LIST_FOREACH(chan, &l2cap_listen_list, lc_ncid) {
  94                 kprintf("LISTEN psm=0x%4.4x, "
  95                     "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
  96                     chan->lc_laddr.bt_psm,
  97                     BDADDR(chan->lc_laddr.bt_bdaddr));
  98         }
  99
 100         kprintf("RFCOMM:\n");
 101         LIST_FOREACH(rs, &rfcomm_session_active, rs_next) {
 102                 chan = rs->rs_l2cap;
 103                 kprintf("SESSION: state=%d, flags=0x%4.4x, psm 0x%4.4x "
 104                     "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
 105                     "raddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
 106                     rs->rs_state, rs->rs_flags, chan->lc_raddr.bt_psm,
 107                     BDADDR(chan->lc_laddr.bt_bdaddr),
 108                     BDADDR(chan->lc_raddr.bt_bdaddr));
 109                 LIST_FOREACH(dlc, &rs->rs_dlcs, rd_next) {
 110                         kprintf("+DLC channel=%d, dlci=%d, "
 111                             "state=%d, flags=0x%4.4x, rxcred=%d, rxsize=%ld, "
 112                             "txcred=%d, pending=%d, txqlen=%d\n",
 113                             dlc->rd_raddr.bt_channel, dlc->rd_dlci,
 114                             dlc->rd_state, dlc->rd_flags,
 115                             dlc->rd_rxcred, (unsigned long)dlc->rd_rxsize,
 116                             dlc->rd_txcred, dlc->rd_pending,
 117                             (dlc->rd_txbuf ? dlc->rd_txbuf->m_pkthdr.len : 0));
 118                 }
 119         }
 120
 121         LIST_FOREACH(rs, &rfcomm_session_listen, rs_next) {
 122                 chan = rs->rs_l2cap;
 123                 kprintf("LISTEN: psm 0x%4.4x, "
 124                     "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
 125                     chan->lc_laddr.bt_psm,
 126                     BDADDR(chan->lc_laddr.bt_bdaddr));
 127                 LIST_FOREACH(dlc, &rs->rs_dlcs, rd_next)
 128                         kprintf("+DLC channel=%d\n", dlc->rd_laddr.bt_channel);
 129         }
 130 }
 131
 132 #undef BDADDR
 133 #endif
 134
 135 int
 136 hci_ioctl(unsigned long cmd, void *data, struct proc *p)
 137 {
 138         struct btreq *btr = data;
 139         struct thread *td = curthread;
 140         struct hci_unit *unit;
 141         int err = 0;
 142
 143         DPRINTFN(1, "cmd %#lx\n", cmd);
 144
 145         switch(cmd) {
 146 #ifdef BLUETOOTH_DEBUG
 147         case SIOCBTDUMP:
 148                 hci_dump();
 149                 return 0;
 150 #endif
 151         /*
 152          * Get unit info based on address rather than name
 153          */
 154         case SIOCGBTINFOA:
 155                 unit = hci_unit_lookup(&btr->btr_bdaddr);
 156                 if (unit == NULL)
 157                         return ENXIO;
 158
 159                 break;
 160
 161         /*
 162          * The remaining ioctl's all use the same btreq structure and
 163          * index on the name of the device, so we look that up first.
 164          */
 165         case SIOCNBTINFO:
 166                 /* empty name means give the first unit */
 167                 if (btr->btr_name[0] == '\0') {
 168                         unit = NULL;
 169                         break;
 170                 }
 171
 172                 /* else fall through and look it up */
 173         case SIOCGBTINFO:
 174         case SIOCSBTFLAGS:
 175         case SIOCSBTPOLICY:
 176         case SIOCSBTPTYPE:
 177         case SIOCGBTSTATS:
 178         case SIOCZBTSTATS:
 179         case SIOCSBTSCOMTU:
 180                 TAILQ_FOREACH(unit, &hci_unit_list, hci_next) {
 181                         if (strncmp(device_get_nameunit(unit->hci_dev),
 182                             btr->btr_name, HCI_DEVNAME_SIZE) == 0)
 183                                 break;
 184                 }
 185
 186                 if (unit == NULL)
 187                         return ENXIO;
 188
 189                 break;
 190
 191         default:        /* not one of mine */
 192                 return EPASSTHROUGH;
 193         }
 194
 195         switch(cmd) {
 196         case SIOCNBTINFO:       /* get next info */
 197                 if (unit)
 198                         unit = TAILQ_NEXT(unit, hci_next);
 199                 else
 200                         unit = TAILQ_FIRST(&hci_unit_list);
 201
 202                 if (unit == NULL) {
 203                         err = ENXIO;
 204                         break;
 205                 }
 206
 207                 /* and fall through to */
 208         case SIOCGBTINFO:       /* get unit info */
 209         case SIOCGBTINFOA:      /* get info by address */
 210                 memset(btr, 0, sizeof(struct btreq));
 211                 strlcpy(btr->btr_name, device_get_nameunit(unit->hci_dev),
 212                     HCI_DEVNAME_SIZE);
 213                 bdaddr_copy(&btr->btr_bdaddr, &unit->hci_bdaddr);
 214
 215                 btr->btr_flags = unit->hci_flags;
 216
 217                 btr->btr_num_cmd = unit->hci_num_cmd_pkts;
 218                 btr->btr_num_acl = unit->hci_num_acl_pkts;
 219                 btr->btr_num_sco = unit->hci_num_sco_pkts;
 220                 btr->btr_acl_mtu = unit->hci_max_acl_size;
 221                 btr->btr_sco_mtu = unit->hci_max_sco_size;
 222
 223                 btr->btr_packet_type = unit->hci_packet_type;
 224                 btr->btr_link_policy = unit->hci_link_policy;
 225                 break;
 226
 227         case SIOCSBTFLAGS:      /* set unit flags (privileged) */
 228                 err = priv_check(td, PRIV_ROOT);
 229                 if (err)
 230                         break;
 231
 232                 if ((unit->hci_flags & BTF_UP)
 233                     && (btr->btr_flags & BTF_UP) == 0) {
 234                         hci_disable(unit);
 235                         unit->hci_flags &= ~BTF_UP;
 236                 }
 237
 238                 unit->hci_flags |= (btr->btr_flags & BTF_INIT);
 239
 240                 if ((unit->hci_flags & BTF_UP) == 0
 241                     && (btr->btr_flags & BTF_UP)) {
 242                         err = hci_enable(unit);
 243                         if (err)
 244                                 break;
 245
 246                         unit->hci_flags |= BTF_UP;
 247                 }
 248
 249                 btr->btr_flags = unit->hci_flags;
 250                 break;
 251
 252         case SIOCSBTPOLICY:     /* set unit link policy (privileged) */
 253                 err = priv_check(td, PRIV_ROOT);
 254                 if (err)
 255                         break;
 256
 257                 unit->hci_link_policy = btr->btr_link_policy;
 258                 unit->hci_link_policy &= unit->hci_lmp_mask;
 259                 btr->btr_link_policy = unit->hci_link_policy;
 260                 break;
 261
 262         case SIOCSBTPTYPE:      /* set unit packet types (privileged) */
 263                 err = priv_check(td, PRIV_ROOT);
 264                 if (err)
 265                         break;
 266
 267                 unit->hci_packet_type = btr->btr_packet_type;
 268                 unit->hci_packet_type &= unit->hci_acl_mask;
 269                 btr->btr_packet_type = unit->hci_packet_type;
 270                 break;
 271
 272         case SIOCGBTSTATS:      /* get unit statistics */
 273                 (*unit->hci_if->get_stats)(unit->hci_dev, &btr->btr_stats, 0);
 274                 break;
 275
 276         case SIOCZBTSTATS:      /* get & reset unit statistics */
 277                 err = priv_check(td, PRIV_ROOT);
 278                 if (err)
 279                         break;
 280
 281                 (*unit->hci_if->get_stats)(unit->hci_dev, &btr->btr_stats, 1);
 282                 break;
 283
 284         case SIOCSBTSCOMTU:     /* set sco_mtu value for unit */
 285                 /*
 286                  * This is a temporary ioctl and may not be supported
 287                  * in the future. The need is that if SCO packets are
 288                  * sent to USB bluetooth controllers that are not an
 289                  * integer number of frame sizes, the USB bus locks up.
 290                  */
 291                 err = priv_check(td, PRIV_ROOT);
 292                 if (err)
 293                         break;
 294
 295                 unit->hci_max_sco_size = btr->btr_sco_mtu;
 296                 break;
 297
 298         default:
 299                 err = EFAULT;
 300                 break;
 301         }
 302
 303         return err;
 304 }