1 /* $OpenBSD: src/sys/netbt/hci_ioctl.c,v 1.2 2008/02/24 21:34:48 uwe Exp $ */ 2 /* $NetBSD: hci_ioctl.c,v 1.7 2007/11/28 20:16:12 plunky Exp $ */ 3 4 /*- 5 * Copyright (c) 2005 Iain Hibbert. 6 * Copyright (c) 2006 Itronix Inc. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of Itronix Inc. may not be used to endorse 18 * or promote products derived from this software without specific 19 * prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 28 * ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/domain.h> 36 #include <sys/kernel.h> 37 #include <sys/mbuf.h> 38 #include <sys/proc.h> 39 #include <sys/priv.h> 40 #include <sys/systm.h> 41 #include <sys/bus.h> 42 43 #include <netbt/bluetooth.h> 44 #include <netbt/hci.h> 45 #include <netbt/l2cap.h> 46 #include <netbt/rfcomm.h> 47 48 #ifdef BLUETOOTH_DEBUG 49 #define BDADDR(bd) (bd).b[5], (bd).b[4], (bd).b[3], \ 50 (bd).b[2], (bd).b[1], (bd).b[0] 51 52 static void 53 hci_dump(void) 54 { 55 struct hci_unit *unit; 56 struct hci_link *link; 57 struct l2cap_channel *chan; 58 struct rfcomm_session *rs; 59 struct rfcomm_dlc *dlc; 60 61 kprintf("HCI:\n"); 62 TAILQ_FOREACH(unit, &hci_unit_list, hci_next) { 63 kprintf("UNIT %s: flags 0x%4.4x, " 64 "num_cmd=%d, num_acl=%d, num_sco=%d\n", 65 device_get_nameunit(unit->hci_dev), unit->hci_flags, 66 unit->hci_num_cmd_pkts, 67 unit->hci_num_acl_pkts, 68 unit->hci_num_sco_pkts); 69 TAILQ_FOREACH(link, &unit->hci_links, hl_next) { 70 kprintf("+HANDLE #%d: %s " 71 "raddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " 72 "state %d, refcnt %d\n", 73 link->hl_handle, 74 (link->hl_type == HCI_LINK_ACL ? "ACL":"SCO"), 75 BDADDR(link->hl_bdaddr), 76 link->hl_state, link->hl_refcnt); 77 } 78 } 79 80 kprintf("L2CAP:\n"); 81 LIST_FOREACH(chan, &l2cap_active_list, lc_ncid) { 82 kprintf("CID #%d state %d, psm=0x%4.4x, " 83 "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " 84 "raddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", 85 chan->lc_lcid, chan->lc_state, chan->lc_raddr.bt_psm, 86 BDADDR(chan->lc_laddr.bt_bdaddr), 87 BDADDR(chan->lc_raddr.bt_bdaddr)); 88 } 89 90 LIST_FOREACH(chan, &l2cap_listen_list, lc_ncid) { 91 kprintf("LISTEN psm=0x%4.4x, " 92 "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", 93 chan->lc_laddr.bt_psm, 94 BDADDR(chan->lc_laddr.bt_bdaddr)); 95 } 96 97 kprintf("RFCOMM:\n"); 98 LIST_FOREACH(rs, &rfcomm_session_active, rs_next) { 99 chan = rs->rs_l2cap; 100 kprintf("SESSION: state=%d, flags=0x%4.4x, psm 0x%4.4x " 101 "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " 102 "raddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", 103 rs->rs_state, rs->rs_flags, chan->lc_raddr.bt_psm, 104 BDADDR(chan->lc_laddr.bt_bdaddr), 105 BDADDR(chan->lc_raddr.bt_bdaddr)); 106 LIST_FOREACH(dlc, &rs->rs_dlcs, rd_next) { 107 kprintf("+DLC channel=%d, dlci=%d, " 108 "state=%d, flags=0x%4.4x, rxcred=%d, rxsize=%ld, " 109 "txcred=%d, pending=%d, txqlen=%d\n", 110 dlc->rd_raddr.bt_channel, dlc->rd_dlci, 111 dlc->rd_state, dlc->rd_flags, 112 dlc->rd_rxcred, (unsigned long)dlc->rd_rxsize, 113 dlc->rd_txcred, dlc->rd_pending, 114 (dlc->rd_txbuf ? dlc->rd_txbuf->m_pkthdr.len : 0)); 115 } 116 } 117 118 LIST_FOREACH(rs, &rfcomm_session_listen, rs_next) { 119 chan = rs->rs_l2cap; 120 kprintf("LISTEN: psm 0x%4.4x, " 121 "laddr=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", 122 chan->lc_laddr.bt_psm, 123 BDADDR(chan->lc_laddr.bt_bdaddr)); 124 LIST_FOREACH(dlc, &rs->rs_dlcs, rd_next) 125 kprintf("+DLC channel=%d\n", dlc->rd_laddr.bt_channel); 126 } 127 } 128 129 #undef BDADDR 130 #endif 131 132 int 133 hci_ioctl(unsigned long cmd, void *data, struct proc *p) 134 { 135 struct btreq *btr = data; 136 struct thread *td = curthread; 137 struct hci_unit *unit; 138 int err = 0; 139 140 DPRINTFN(1, "cmd %#lx\n", cmd); 141 142 switch(cmd) { 143 #ifdef BLUETOOTH_DEBUG 144 case SIOCBTDUMP: 145 hci_dump(); 146 return 0; 147 #endif 148 /* 149 * Get unit info based on address rather than name 150 */ 151 case SIOCGBTINFOA: 152 unit = hci_unit_lookup(&btr->btr_bdaddr); 153 if (unit == NULL) 154 return ENXIO; 155 156 break; 157 158 /* 159 * The remaining ioctl's all use the same btreq structure and 160 * index on the name of the device, so we look that up first. 161 */ 162 case SIOCNBTINFO: 163 /* empty name means give the first unit */ 164 if (btr->btr_name[0] == '\0') { 165 unit = NULL; 166 break; 167 } 168 169 /* else fall through and look it up */ 170 case SIOCGBTINFO: 171 case SIOCSBTFLAGS: 172 case SIOCSBTPOLICY: 173 case SIOCSBTPTYPE: 174 case SIOCGBTSTATS: 175 case SIOCZBTSTATS: 176 case SIOCSBTSCOMTU: 177 TAILQ_FOREACH(unit, &hci_unit_list, hci_next) { 178 if (strncmp(device_get_nameunit(unit->hci_dev), 179 btr->btr_name, HCI_DEVNAME_SIZE) == 0) 180 break; 181 } 182 183 if (unit == NULL) 184 return ENXIO; 185 186 break; 187 188 default: /* not one of mine */ 189 return EPASSTHROUGH; 190 } 191 192 switch(cmd) { 193 case SIOCNBTINFO: /* get next info */ 194 if (unit) 195 unit = TAILQ_NEXT(unit, hci_next); 196 else 197 unit = TAILQ_FIRST(&hci_unit_list); 198 199 if (unit == NULL) { 200 err = ENXIO; 201 break; 202 } 203 204 /* and fall through to */ 205 case SIOCGBTINFO: /* get unit info */ 206 case SIOCGBTINFOA: /* get info by address */ 207 memset(btr, 0, sizeof(struct btreq)); 208 strlcpy(btr->btr_name, device_get_nameunit(unit->hci_dev), 209 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 = priv_check(td, PRIV_ROOT); 226 if (err) 227 break; 228 229 if ((unit->hci_flags & BTF_UP) 230 && (btr->btr_flags & BTF_UP) == 0) { 231 hci_disable(unit); 232 unit->hci_flags &= ~BTF_UP; 233 } 234 235 unit->hci_flags |= (btr->btr_flags & BTF_INIT); 236 237 if ((unit->hci_flags & BTF_UP) == 0 238 && (btr->btr_flags & BTF_UP)) { 239 err = hci_enable(unit); 240 if (err) 241 break; 242 243 unit->hci_flags |= BTF_UP; 244 } 245 246 btr->btr_flags = unit->hci_flags; 247 break; 248 249 case SIOCSBTPOLICY: /* set unit link policy (privileged) */ 250 err = priv_check(td, PRIV_ROOT); 251 if (err) 252 break; 253 254 unit->hci_link_policy = btr->btr_link_policy; 255 unit->hci_link_policy &= unit->hci_lmp_mask; 256 btr->btr_link_policy = unit->hci_link_policy; 257 break; 258 259 case SIOCSBTPTYPE: /* set unit packet types (privileged) */ 260 err = priv_check(td, PRIV_ROOT); 261 if (err) 262 break; 263 264 unit->hci_packet_type = btr->btr_packet_type; 265 unit->hci_packet_type &= unit->hci_acl_mask; 266 btr->btr_packet_type = unit->hci_packet_type; 267 break; 268 269 case SIOCGBTSTATS: /* get unit statistics */ 270 (*unit->hci_if->get_stats)(unit->hci_dev, &btr->btr_stats, 0); 271 break; 272 273 case SIOCZBTSTATS: /* get & reset unit statistics */ 274 err = priv_check(td, PRIV_ROOT); 275 if (err) 276 break; 277 278 (*unit->hci_if->get_stats)(unit->hci_dev, &btr->btr_stats, 1); 279 break; 280 281 case SIOCSBTSCOMTU: /* set sco_mtu value for unit */ 282 /* 283 * This is a temporary ioctl and may not be supported 284 * in the future. The need is that if SCO packets are 285 * sent to USB bluetooth controllers that are not an 286 * integer number of frame sizes, the USB bus locks up. 287 */ 288 err = priv_check(td, PRIV_ROOT); 289 if (err) 290 break; 291 292 unit->hci_max_sco_size = btr->btr_sco_mtu; 293 break; 294 295 default: 296 err = EFAULT; 297 break; 298 } 299 300 return err; 301 } 302