hci_ioctl.c revision 1.9
1 /* $NetBSD: hci_ioctl.c,v 1.9 2009/08/20 21:40:59 plunky 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: hci_ioctl.c,v 1.9 2009/08/20 21:40:59 plunky Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/domain.h> 38 #include <sys/ioctl.h> 39 #include <sys/kauth.h> 40 #include <sys/kernel.h> 41 #include <sys/mbuf.h> 42 #include <sys/proc.h> 43 #include <sys/systm.h> 44 45 #include <netbt/bluetooth.h> 46 #include <netbt/hci.h> 47 #include <netbt/l2cap.h> 48 #include <netbt/rfcomm.h> 49 50 #ifdef BLUETOOTH_DEBUG 51 #define BDADDR(bd) (bd).b[5], (bd).b[4], (bd).b[3], \ 52 (bd).b[2], (bd).b[1], (bd).b[0] 53 54 static void 55 hci_dump(void) 56 { 57 struct hci_unit *unit; 58 struct hci_link *link; 59 struct l2cap_channel *chan; 60 struct rfcomm_session *rs; 61 struct rfcomm_dlc *dlc; 62 63 uprintf("HCI:\n"); 64 SIMPLEQ_FOREACH(unit, &hci_unit_list, hci_next) { 65 uprintf("UNIT %s: flags 0x%4.4x, " 66 "num_cmd=%d, num_acl=%d, num_sco=%d\n", 67 device_xname(unit->hci_dev), unit->hci_flags, 68 unit->hci_num_cmd_pkts, 69 unit->hci_num_acl_pkts, 70 unit->hci_num_sco_pkts); 71 TAILQ_FOREACH(link, &unit->hci_links, hl_next) { 72 uprintf("+HANDLE #%d: %s " 73 "raddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " 74 "state %d, refcnt %d\n", 75 link->hl_handle, 76 (link->hl_type == HCI_LINK_ACL ? "ACL":"SCO"), 77 BDADDR(link->hl_bdaddr), 78 link->hl_state, link->hl_refcnt); 79 } 80 } 81 82 uprintf("L2CAP:\n"); 83 LIST_FOREACH(chan, &l2cap_active_list, lc_ncid) { 84 uprintf("CID #%d state %d, psm=0x%4.4x, " 85 "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " 86 "raddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", 87 chan->lc_lcid, chan->lc_state, chan->lc_raddr.bt_psm, 88 BDADDR(chan->lc_laddr.bt_bdaddr), 89 BDADDR(chan->lc_raddr.bt_bdaddr)); 90 } 91 92 LIST_FOREACH(chan, &l2cap_listen_list, lc_ncid) { 93 uprintf("LISTEN psm=0x%4.4x, " 94 "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", 95 chan->lc_laddr.bt_psm, 96 BDADDR(chan->lc_laddr.bt_bdaddr)); 97 } 98 99 uprintf("RFCOMM:\n"); 100 LIST_FOREACH(rs, &rfcomm_session_active, rs_next) { 101 chan = rs->rs_l2cap; 102 uprintf("SESSION: state=%d, flags=0x%4.4x, psm 0x%4.4x " 103 "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " 104 "raddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", 105 rs->rs_state, rs->rs_flags, chan->lc_raddr.bt_psm, 106 BDADDR(chan->lc_laddr.bt_bdaddr), 107 BDADDR(chan->lc_raddr.bt_bdaddr)); 108 LIST_FOREACH(dlc, &rs->rs_dlcs, rd_next) { 109 uprintf("+DLC channel=%d, dlci=%d, " 110 "state=%d, flags=0x%4.4x, rxcred=%d, rxsize=%ld, " 111 "txcred=%d, pending=%d, txqlen=%d\n", 112 dlc->rd_raddr.bt_channel, dlc->rd_dlci, 113 dlc->rd_state, dlc->rd_flags, 114 dlc->rd_rxcred, (unsigned long)dlc->rd_rxsize, 115 dlc->rd_txcred, dlc->rd_pending, 116 (dlc->rd_txbuf ? dlc->rd_txbuf->m_pkthdr.len : 0)); 117 } 118 } 119 120 LIST_FOREACH(rs, &rfcomm_session_listen, rs_next) { 121 chan = rs->rs_l2cap; 122 uprintf("LISTEN: psm 0x%4.4x, " 123 "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", 124 chan->lc_laddr.bt_psm, 125 BDADDR(chan->lc_laddr.bt_bdaddr)); 126 LIST_FOREACH(dlc, &rs->rs_dlcs, rd_next) 127 uprintf("+DLC channel=%d\n", dlc->rd_laddr.bt_channel); 128 } 129 } 130 131 #undef BDADDR 132 #endif 133 134 int 135 hci_ioctl(unsigned long cmd, void *data, struct lwp *l) 136 { 137 struct btreq *btr = data; 138 struct hci_unit *unit; 139 int err = 0; 140 141 DPRINTFN(1, "cmd %#lx\n", cmd); 142 143 switch(cmd) { 144 #ifdef BLUETOOTH_DEBUG 145 case SIOCBTDUMP: 146 hci_dump(); 147 return 0; 148 #endif 149 /* 150 * Get unit info based on address rather than name 151 */ 152 case SIOCGBTINFOA: 153 unit = hci_unit_lookup(&btr->btr_bdaddr); 154 if (unit == NULL) 155 return ENXIO; 156 157 break; 158 159 /* 160 * The remaining ioctl's all use the same btreq structure and 161 * index on the name of the device, so we look that up first. 162 */ 163 case SIOCNBTINFO: 164 /* empty name means give the first unit */ 165 if (btr->btr_name[0] == '\0') { 166 unit = NULL; 167 break; 168 } 169 170 /* else fall through and look it up */ 171 case SIOCGBTINFO: 172 case SIOCSBTFLAGS: 173 case SIOCSBTPOLICY: 174 case SIOCSBTPTYPE: 175 case SIOCGBTSTATS: 176 case SIOCZBTSTATS: 177 case SIOCSBTSCOMTU: 178 SIMPLEQ_FOREACH(unit, &hci_unit_list, hci_next) { 179 if (strncmp(device_xname(unit->hci_dev), 180 btr->btr_name, HCI_DEVNAME_SIZE) == 0) 181 break; 182 } 183 184 if (unit == NULL) 185 return ENXIO; 186 187 break; 188 189 default: /* not one of mine */ 190 return EPASSTHROUGH; 191 } 192 193 switch(cmd) { 194 case SIOCNBTINFO: /* get next info */ 195 if (unit) 196 unit = SIMPLEQ_NEXT(unit, hci_next); 197 else 198 unit = SIMPLEQ_FIRST(&hci_unit_list); 199 200 if (unit == NULL) { 201 err = ENXIO; 202 break; 203 } 204 205 /* and fall through to */ 206 case SIOCGBTINFO: /* get unit info */ 207 case SIOCGBTINFOA: /* get info by address */ 208 memset(btr, 0, sizeof(struct btreq)); 209 strlcpy(btr->btr_name, device_xname(unit->hci_dev), HCI_DEVNAME_SIZE); 210 bdaddr_copy(&btr->btr_bdaddr, &unit->hci_bdaddr); 211 212 btr->btr_flags = unit->hci_flags; 213 214 btr->btr_num_cmd = unit->hci_num_cmd_pkts; 215 btr->btr_num_acl = unit->hci_num_acl_pkts; 216 btr->btr_num_sco = unit->hci_num_sco_pkts; 217 btr->btr_acl_mtu = unit->hci_max_acl_size; 218 btr->btr_sco_mtu = unit->hci_max_sco_size; 219 220 btr->btr_packet_type = unit->hci_packet_type; 221 btr->btr_link_policy = unit->hci_link_policy; 222 break; 223 224 case SIOCSBTFLAGS: /* set unit flags (privileged) */ 225 err = kauth_authorize_device(l->l_cred, 226 KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), 227 btr, NULL); 228 if (err) 229 break; 230 231 if ((unit->hci_flags & BTF_UP) 232 && (btr->btr_flags & BTF_UP) == 0) { 233 hci_disable(unit); 234 unit->hci_flags &= ~BTF_UP; 235 } 236 237 unit->hci_flags &= ~BTF_MASTER; 238 unit->hci_flags |= (btr->btr_flags & (BTF_INIT | BTF_MASTER)); 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 = kauth_authorize_device(l->l_cred, 254 KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), 255 btr, NULL); 256 if (err) 257 break; 258 259 unit->hci_link_policy = btr->btr_link_policy; 260 unit->hci_link_policy &= unit->hci_lmp_mask; 261 btr->btr_link_policy = unit->hci_link_policy; 262 break; 263 264 case SIOCSBTPTYPE: /* set unit packet types (privileged) */ 265 err = kauth_authorize_device(l->l_cred, 266 KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), 267 btr, NULL); 268 if (err) 269 break; 270 271 unit->hci_packet_type = btr->btr_packet_type; 272 unit->hci_packet_type &= unit->hci_acl_mask; 273 btr->btr_packet_type = unit->hci_packet_type; 274 break; 275 276 case SIOCGBTSTATS: /* get unit statistics */ 277 (*unit->hci_if->get_stats)(unit->hci_dev, &btr->btr_stats, 0); 278 break; 279 280 case SIOCZBTSTATS: /* get & reset unit statistics */ 281 err = kauth_authorize_device(l->l_cred, 282 KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), 283 btr, NULL); 284 if (err) 285 break; 286 287 (*unit->hci_if->get_stats)(unit->hci_dev, &btr->btr_stats, 1); 288 break; 289 290 case SIOCSBTSCOMTU: /* set sco_mtu value for unit */ 291 /* 292 * This is a temporary ioctl and may not be supported 293 * in the future. The need is that if SCO packets are 294 * sent to USB bluetooth controllers that are not an 295 * integer number of frame sizes, the USB bus locks up. 296 */ 297 err = kauth_authorize_device(l->l_cred, 298 KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), 299 btr, NULL); 300 if (err) 301 break; 302 303 unit->hci_max_sco_size = btr->btr_sco_mtu; 304 break; 305 306 default: 307 err = EFAULT; 308 break; 309 } 310 311 return err; 312 } 313
Indexes created Sun Sep 21 20:09:37 GMT 2025