FreeBSD/Linux Kernel Cross Reference
sys/netbt/hci_ioctl.c
1 /* $NetBSD: hci_ioctl.c,v 1.4 2006/09/11 22:12:39 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 1.4 2006/09/11 22:12:39 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 printf("HCI:\n");
64 SIMPLEQ_FOREACH(unit, &hci_unit_list, hci_next) {
65 printf("UNIT %s: flags 0x%4.4x, "
66 "num_cmd=%d, num_acl=%d, num_sco=%d\n",
67 unit->hci_devname, 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 printf("+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 printf("L2CAP:\n");
83 LIST_FOREACH(chan, &l2cap_active_list, lc_ncid) {
84 printf("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 printf("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 printf("RFCOMM:\n");
100 LIST_FOREACH(rs, &rfcomm_session_active, rs_next) {
101 chan = rs->rs_l2cap;
102 printf("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 printf("+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 printf("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 printf("+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 s, 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(unit->hci_devname, btr->btr_name,
180 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, unit->hci_devname, 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_generic(l->l_cred,
226 KAUTH_GENERIC_ISSUSER, &l->l_acflag);
227 if (err)
228 break;
229
230 if ((unit->hci_flags & BTF_UP)
231 && (btr->btr_flags & BTF_UP) == 0) {
232 hci_disable(unit);
233 unit->hci_flags &= ~BTF_UP;
234 }
235
236 s = splraiseipl(unit->hci_ipl);
237 unit->hci_flags |= (btr->btr_flags & BTF_INIT);
238 splx(s);
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 s = splraiseipl(unit->hci_ipl);
247 unit->hci_flags |= BTF_UP;
248 splx(s);
249 }
250
251 btr->btr_flags = unit->hci_flags;
252 break;
253
254 case SIOCSBTPOLICY: /* set unit link policy (privileged) */
255 err = kauth_authorize_generic(l->l_cred,
256 KAUTH_GENERIC_ISSUSER, &l->l_acflag);
257 if (err)
258 break;
259
260 unit->hci_link_policy = btr->btr_link_policy;
261 unit->hci_link_policy &= unit->hci_lmp_mask;
262 btr->btr_link_policy = unit->hci_link_policy;
263 break;
264
265 case SIOCSBTPTYPE: /* set unit packet types (privileged) */
266 err = kauth_authorize_generic(l->l_cred,
267 KAUTH_GENERIC_ISSUSER, &l->l_acflag);
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 s = splraiseipl(unit->hci_ipl);
278 memcpy(&btr->btr_stats, &unit->hci_stats,
279 sizeof(struct bt_stats));
280 splx(s);
281 break;
282
283 case SIOCZBTSTATS: /* get & reset unit statistics */
284 err = kauth_authorize_generic(l->l_cred,
285 KAUTH_GENERIC_ISSUSER, &l->l_acflag);
286 if (err)
287 break;
288
289 s = splraiseipl(unit->hci_ipl);
290 memcpy(&btr->btr_stats, &unit->hci_stats,
291 sizeof(struct bt_stats));
292 memset(&unit->hci_stats, 0, sizeof(struct bt_stats));
293 splx(s);
294
295 break;
296
297 case SIOCSBTSCOMTU: /* set sco_mtu value for unit */
298 /*
299 * This is a temporary ioctl and may not be supported
300 * in the future. The need is that if SCO packets are
301 * sent to USB bluetooth controllers that are not an
302 * integer number of frame sizes, the USB bus locks up.
303 */
304 err = kauth_authorize_generic(l->l_cred,
305 KAUTH_GENERIC_ISSUSER, &l->l_acflag);
306 if (err)
307 break;
308
309 unit->hci_max_sco_size = btr->btr_sco_mtu;
310 break;
311
312 default:
313 err = EFAULT;
314 break;
315 }
316
317 return err;
318 }
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