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 | |