| 1 | /* $NetBSD: hci_ioctl.c,v 1.13 2015/11/28 09:04:34 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 1.13 2015/11/28 09:04:34 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_pcb(unsigned long cmd, void *data) |
| 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 | case SIOCGBTFEAT: |
| 179 | SIMPLEQ_FOREACH(unit, &hci_unit_list, hci_next) { |
| 180 | if (strncmp(device_xname(unit->hci_dev), |
| 181 | btr->btr_name, HCI_DEVNAME_SIZE) == 0) |
| 182 | break; |
| 183 | } |
| 184 | |
| 185 | if (unit == NULL) |
| 186 | return ENXIO; |
| 187 | |
| 188 | break; |
| 189 | |
| 190 | default: /* not one of mine */ |
| 191 | return EPASSTHROUGH; |
| 192 | } |
| 193 | |
| 194 | switch(cmd) { |
| 195 | case SIOCNBTINFO: /* get next info */ |
| 196 | if (unit) |
| 197 | unit = SIMPLEQ_NEXT(unit, hci_next); |
| 198 | else |
| 199 | unit = SIMPLEQ_FIRST(&hci_unit_list); |
| 200 | |
| 201 | if (unit == NULL) { |
| 202 | err = ENXIO; |
| 203 | break; |
| 204 | } |
| 205 | |
| 206 | /* and fall through to */ |
| 207 | case SIOCGBTINFO: /* get unit info */ |
| 208 | case SIOCGBTINFOA: /* get info by address */ |
| 209 | memset(btr, 0, sizeof(struct btreq)); |
| 210 | strlcpy(btr->btr_name, device_xname(unit->hci_dev), HCI_DEVNAME_SIZE); |
| 211 | bdaddr_copy(&btr->btr_bdaddr, &unit->hci_bdaddr); |
| 212 | |
| 213 | btr->btr_flags = unit->hci_flags; |
| 214 | |
| 215 | btr->btr_num_cmd = unit->hci_num_cmd_pkts; |
| 216 | btr->btr_num_acl = unit->hci_num_acl_pkts; |
| 217 | btr->btr_num_sco = unit->hci_num_sco_pkts; |
| 218 | btr->btr_acl_mtu = unit->hci_max_acl_size; |
| 219 | btr->btr_sco_mtu = unit->hci_max_sco_size; |
| 220 | btr->btr_max_acl = unit->hci_max_acl_pkts; |
| 221 | btr->btr_max_sco = unit->hci_max_sco_pkts; |
| 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 = kauth_authorize_device(curlwp->l_cred, |
| 229 | KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), |
| 230 | btr, NULL); |
| 231 | if (err) |
| 232 | break; |
| 233 | |
| 234 | if ((unit->hci_flags & BTF_UP) |
| 235 | && (btr->btr_flags & BTF_UP) == 0) { |
| 236 | hci_disable(unit); |
| 237 | unit->hci_flags &= ~BTF_UP; |
| 238 | } |
| 239 | |
| 240 | unit->hci_flags &= ~BTF_MASTER; |
| 241 | unit->hci_flags |= (btr->btr_flags & (BTF_INIT | BTF_MASTER)); |
| 242 | |
| 243 | if ((unit->hci_flags & BTF_UP) == 0 |
| 244 | && (btr->btr_flags & BTF_UP)) { |
| 245 | err = hci_enable(unit); |
| 246 | if (err) |
| 247 | break; |
| 248 | |
| 249 | unit->hci_flags |= BTF_UP; |
| 250 | } |
| 251 | |
| 252 | btr->btr_flags = unit->hci_flags; |
| 253 | break; |
| 254 | |
| 255 | case SIOCSBTPOLICY: /* set unit link policy (privileged) */ |
| 256 | err = kauth_authorize_device(curlwp->l_cred, |
| 257 | KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), |
| 258 | btr, NULL); |
| 259 | if (err) |
| 260 | break; |
| 261 | |
| 262 | unit->hci_link_policy = btr->btr_link_policy; |
| 263 | unit->hci_link_policy &= unit->hci_lmp_mask; |
| 264 | btr->btr_link_policy = unit->hci_link_policy; |
| 265 | break; |
| 266 | |
| 267 | case SIOCSBTPTYPE: /* set unit packet types (privileged) */ |
| 268 | err = kauth_authorize_device(curlwp->l_cred, |
| 269 | KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), |
| 270 | btr, NULL); |
| 271 | if (err) |
| 272 | break; |
| 273 | |
| 274 | unit->hci_packet_type = btr->btr_packet_type; |
| 275 | unit->hci_packet_type &= unit->hci_acl_mask; |
| 276 | btr->btr_packet_type = unit->hci_packet_type; |
| 277 | break; |
| 278 | |
| 279 | case SIOCGBTSTATS: /* get unit statistics */ |
| 280 | (*unit->hci_if->get_stats)(unit->hci_dev, &btr->btr_stats, 0); |
| 281 | break; |
| 282 | |
| 283 | case SIOCZBTSTATS: /* get & reset unit statistics */ |
| 284 | err = kauth_authorize_device(curlwp->l_cred, |
| 285 | KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), |
| 286 | btr, NULL); |
| 287 | if (err) |
| 288 | break; |
| 289 | |
| 290 | (*unit->hci_if->get_stats)(unit->hci_dev, &btr->btr_stats, 1); |
| 291 | break; |
| 292 | |
| 293 | case SIOCSBTSCOMTU: /* set sco_mtu value for unit */ |
| 294 | /* |
| 295 | * This is a temporary ioctl and may not be supported |
| 296 | * in the future. The need is that if SCO packets are |
| 297 | * sent to USB bluetooth controllers that are not an |
| 298 | * integer number of frame sizes, the USB bus locks up. |
| 299 | */ |
| 300 | err = kauth_authorize_device(curlwp->l_cred, |
| 301 | KAUTH_DEVICE_BLUETOOTH_SETPRIV, unit, KAUTH_ARG(cmd), |
| 302 | btr, NULL); |
| 303 | if (err) |
| 304 | break; |
| 305 | |
| 306 | unit->hci_max_sco_size = btr->btr_sco_mtu; |
| 307 | break; |
| 308 | |
| 309 | case SIOCGBTFEAT: /* get unit features */ |
| 310 | memset(btr, 0, sizeof(struct btreq)); |
| 311 | strlcpy(btr->btr_name, device_xname(unit->hci_dev), HCI_DEVNAME_SIZE); |
| 312 | memcpy(btr->btr_features0, unit->hci_feat0, HCI_FEATURES_SIZE); |
| 313 | memcpy(btr->btr_features1, unit->hci_feat1, HCI_FEATURES_SIZE); |
| 314 | memcpy(btr->btr_features2, unit->hci_feat2, HCI_FEATURES_SIZE); |
| 315 | break; |
| 316 | |
| 317 | default: |
| 318 | err = EFAULT; |
| 319 | break; |
| 320 | } |
| 321 | |
| 322 | return err; |
| 323 | } |
| 324 | |