1 /*-
2 * Copyright (c) 2008 David E. O'Brien
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32
33 #include "opt_compat.h"
34
35 #include <sys/param.h>
36 #include <sys/capability.h>
37 #include <sys/cdio.h>
38 #include <sys/fcntl.h>
39 #include <sys/filio.h>
40 #include <sys/file.h>
41 #include <sys/ioccom.h>
42 #include <sys/malloc.h>
43 #include <sys/mdioctl.h>
44 #include <sys/memrange.h>
45 #include <sys/pciio.h>
46 #include <sys/proc.h>
47 #include <sys/syscall.h>
48 #include <sys/syscallsubr.h>
49 #include <sys/sysctl.h>
50 #include <sys/sysent.h>
51 #include <sys/sysproto.h>
52 #include <sys/systm.h>
53
54 #include <compat/freebsd32/freebsd32.h>
55 #include <compat/freebsd32/freebsd32_ioctl.h>
56 #include <compat/freebsd32/freebsd32_proto.h>
57
58 /* Cannot get exact size in 64-bit due to alignment issue of entire struct. */
59 CTASSERT((sizeof(struct md_ioctl32)+4) == 436);
60 CTASSERT(sizeof(struct ioc_read_toc_entry32) == 8);
61 CTASSERT(sizeof(struct ioc_toc_header32) == 4);
62 CTASSERT(sizeof(struct mem_range_op32) == 12);
63 CTASSERT(sizeof(struct pci_conf_io32) == 36);
64 CTASSERT(sizeof(struct pci_match_conf32) == 44);
65 CTASSERT(sizeof(struct pci_conf32) == 44);
66
67
68 static int
69 freebsd32_ioctl_md(struct thread *td, struct freebsd32_ioctl_args *uap,
70 struct file *fp)
71 {
72 struct md_ioctl mdv;
73 struct md_ioctl32 md32;
74 u_long com = 0;
75 int i, error;
76
77 if (uap->com & IOC_IN) {
78 if ((error = copyin(uap->data, &md32, sizeof(md32)))) {
79 return (error);
80 }
81 CP(md32, mdv, md_version);
82 CP(md32, mdv, md_unit);
83 CP(md32, mdv, md_type);
84 PTRIN_CP(md32, mdv, md_file);
85 CP(md32, mdv, md_mediasize);
86 CP(md32, mdv, md_sectorsize);
87 CP(md32, mdv, md_options);
88 CP(md32, mdv, md_base);
89 CP(md32, mdv, md_fwheads);
90 CP(md32, mdv, md_fwsectors);
91 } else if (uap->com & IOC_OUT) {
92 /*
93 * Zero the buffer so the user always
94 * gets back something deterministic.
95 */
96 bzero(&mdv, sizeof mdv);
97 }
98
99 switch (uap->com) {
100 case MDIOCATTACH_32:
101 com = MDIOCATTACH;
102 break;
103 case MDIOCDETACH_32:
104 com = MDIOCDETACH;
105 break;
106 case MDIOCQUERY_32:
107 com = MDIOCQUERY;
108 break;
109 case MDIOCLIST_32:
110 com = MDIOCLIST;
111 break;
112 default:
113 panic("%s: unknown MDIOC %#x", __func__, uap->com);
114 }
115 error = fo_ioctl(fp, com, (caddr_t)&mdv, td->td_ucred, td);
116 if (error == 0 && (com & IOC_OUT)) {
117 CP(mdv, md32, md_version);
118 CP(mdv, md32, md_unit);
119 CP(mdv, md32, md_type);
120 PTROUT_CP(mdv, md32, md_file);
121 CP(mdv, md32, md_mediasize);
122 CP(mdv, md32, md_sectorsize);
123 CP(mdv, md32, md_options);
124 CP(mdv, md32, md_base);
125 CP(mdv, md32, md_fwheads);
126 CP(mdv, md32, md_fwsectors);
127 if (com == MDIOCLIST) {
128 /*
129 * Use MDNPAD, and not MDNPAD32. Padding is
130 * allocated and used by compat32 ABI.
131 */
132 for (i = 0; i < MDNPAD; i++)
133 CP(mdv, md32, md_pad[i]);
134 }
135 error = copyout(&md32, uap->data, sizeof(md32));
136 }
137 return error;
138 }
139
140
141 static int
142 freebsd32_ioctl_ioc_toc_header(struct thread *td,
143 struct freebsd32_ioctl_args *uap, struct file *fp)
144 {
145 struct ioc_toc_header toch;
146 struct ioc_toc_header32 toch32;
147 int error;
148
149 if ((error = copyin(uap->data, &toch32, sizeof(toch32))))
150 return (error);
151 CP(toch32, toch, len);
152 CP(toch32, toch, starting_track);
153 CP(toch32, toch, ending_track);
154 error = fo_ioctl(fp, CDIOREADTOCHEADER, (caddr_t)&toch,
155 td->td_ucred, td);
156 return (error);
157 }
158
159
160 static int
161 freebsd32_ioctl_ioc_read_toc(struct thread *td,
162 struct freebsd32_ioctl_args *uap, struct file *fp)
163 {
164 struct ioc_read_toc_entry toce;
165 struct ioc_read_toc_entry32 toce32;
166 int error;
167
168 if ((error = copyin(uap->data, &toce32, sizeof(toce32))))
169 return (error);
170 CP(toce32, toce, address_format);
171 CP(toce32, toce, starting_track);
172 CP(toce32, toce, data_len);
173 PTRIN_CP(toce32, toce, data);
174
175 if ((error = fo_ioctl(fp, CDIOREADTOCENTRYS, (caddr_t)&toce,
176 td->td_ucred, td))) {
177 CP(toce, toce32, address_format);
178 CP(toce, toce32, starting_track);
179 CP(toce, toce32, data_len);
180 PTROUT_CP(toce, toce32, data);
181 error = copyout(&toce32, uap->data, sizeof(toce32));
182 }
183 return error;
184 }
185
186 static int
187 freebsd32_ioctl_fiodgname(struct thread *td,
188 struct freebsd32_ioctl_args *uap, struct file *fp)
189 {
190 struct fiodgname_arg fgn;
191 struct fiodgname_arg32 fgn32;
192 int error;
193
194 if ((error = copyin(uap->data, &fgn32, sizeof fgn32)) != 0)
195 return (error);
196 CP(fgn32, fgn, len);
197 PTRIN_CP(fgn32, fgn, buf);
198 error = fo_ioctl(fp, FIODGNAME, (caddr_t)&fgn, td->td_ucred, td);
199 return (error);
200 }
201
202 static int
203 freebsd32_ioctl_memrange(struct thread *td,
204 struct freebsd32_ioctl_args *uap, struct file *fp)
205 {
206 struct mem_range_op mro;
207 struct mem_range_op32 mro32;
208 int error;
209 u_long com;
210
211 if ((error = copyin(uap->data, &mro32, sizeof(mro32))) != 0)
212 return (error);
213
214 PTRIN_CP(mro32, mro, mo_desc);
215 CP(mro32, mro, mo_arg[0]);
216 CP(mro32, mro, mo_arg[1]);
217
218 com = 0;
219 switch (uap->com) {
220 case MEMRANGE_GET32:
221 com = MEMRANGE_GET;
222 break;
223
224 case MEMRANGE_SET32:
225 com = MEMRANGE_SET;
226 break;
227
228 default:
229 panic("%s: unknown MEMRANGE %#x", __func__, uap->com);
230 }
231
232 if ((error = fo_ioctl(fp, com, (caddr_t)&mro, td->td_ucred, td)) != 0)
233 return (error);
234
235 if ( (com & IOC_OUT) ) {
236 CP(mro, mro32, mo_arg[0]);
237 CP(mro, mro32, mo_arg[1]);
238
239 error = copyout(&mro32, uap->data, sizeof(mro32));
240 }
241
242 return (error);
243 }
244
245 static int
246 freebsd32_ioctl_pciocgetconf(struct thread *td,
247 struct freebsd32_ioctl_args *uap, struct file *fp)
248 {
249 struct pci_conf_io pci;
250 struct pci_conf_io32 pci32;
251 struct pci_match_conf32 pmc32;
252 struct pci_match_conf32 *pmc32p;
253 struct pci_match_conf pmc;
254 struct pci_match_conf *pmcp;
255 struct pci_conf32 pc32;
256 struct pci_conf32 *pc32p;
257 struct pci_conf pc;
258 struct pci_conf *pcp;
259 u_int32_t i;
260 u_int32_t npat_to_convert;
261 u_int32_t nmatch_to_convert;
262 vm_offset_t addr;
263 int error;
264
265 if ((error = copyin(uap->data, &pci32, sizeof(pci32))) != 0)
266 return (error);
267
268 CP(pci32, pci, num_patterns);
269 CP(pci32, pci, offset);
270 CP(pci32, pci, generation);
271
272 npat_to_convert = pci32.pat_buf_len / sizeof(struct pci_match_conf32);
273 pci.pat_buf_len = npat_to_convert * sizeof(struct pci_match_conf);
274 pci.patterns = NULL;
275 nmatch_to_convert = pci32.match_buf_len / sizeof(struct pci_conf32);
276 pci.match_buf_len = nmatch_to_convert * sizeof(struct pci_conf);
277 pci.matches = NULL;
278
279 if ((error = copyout_map(td, &addr, pci.pat_buf_len)) != 0)
280 goto cleanup;
281 pci.patterns = (struct pci_match_conf *)addr;
282 if ((error = copyout_map(td, &addr, pci.match_buf_len)) != 0)
283 goto cleanup;
284 pci.matches = (struct pci_conf *)addr;
285
286 npat_to_convert = min(npat_to_convert, pci.num_patterns);
287
288 for (i = 0, pmc32p = (struct pci_match_conf32 *)PTRIN(pci32.patterns),
289 pmcp = pci.patterns;
290 i < npat_to_convert; i++, pmc32p++, pmcp++) {
291 if ((error = copyin(pmc32p, &pmc32, sizeof(pmc32))) != 0)
292 goto cleanup;
293 CP(pmc32,pmc,pc_sel);
294 strlcpy(pmc.pd_name, pmc32.pd_name, sizeof(pmc.pd_name));
295 CP(pmc32,pmc,pd_unit);
296 CP(pmc32,pmc,pc_vendor);
297 CP(pmc32,pmc,pc_device);
298 CP(pmc32,pmc,pc_class);
299 CP(pmc32,pmc,flags);
300 if ((error = copyout(&pmc, pmcp, sizeof(pmc))) != 0)
301 goto cleanup;
302 }
303
304 if ((error = fo_ioctl(fp, PCIOCGETCONF, (caddr_t)&pci,
305 td->td_ucred, td)) != 0)
306 goto cleanup;
307
308 nmatch_to_convert = min(nmatch_to_convert, pci.num_matches);
309
310 for (i = 0, pcp = pci.matches,
311 pc32p = (struct pci_conf32 *)PTRIN(pci32.matches);
312 i < nmatch_to_convert; i++, pcp++, pc32p++) {
313 if ((error = copyin(pcp, &pc, sizeof(pc))) != 0)
314 goto cleanup;
315 CP(pc,pc32,pc_sel);
316 CP(pc,pc32,pc_hdr);
317 CP(pc,pc32,pc_subvendor);
318 CP(pc,pc32,pc_subdevice);
319 CP(pc,pc32,pc_vendor);
320 CP(pc,pc32,pc_device);
321 CP(pc,pc32,pc_class);
322 CP(pc,pc32,pc_subclass);
323 CP(pc,pc32,pc_progif);
324 CP(pc,pc32,pc_revid);
325 strlcpy(pc32.pd_name, pc.pd_name, sizeof(pc32.pd_name));
326 CP(pc,pc32,pd_unit);
327 if ((error = copyout(&pc32, pc32p, sizeof(pc32))) != 0)
328 goto cleanup;
329 }
330
331 CP(pci, pci32, num_matches);
332 CP(pci, pci32, offset);
333 CP(pci, pci32, generation);
334 CP(pci, pci32, status);
335
336 error = copyout(&pci32, uap->data, sizeof(pci32));
337
338 cleanup:
339 if (pci.patterns)
340 copyout_unmap(td, (vm_offset_t)pci.patterns, pci.pat_buf_len);
341 if (pci.matches)
342 copyout_unmap(td, (vm_offset_t)pci.matches, pci.match_buf_len);
343
344 return (error);
345 }
346
347 int
348 freebsd32_ioctl(struct thread *td, struct freebsd32_ioctl_args *uap)
349 {
350 struct ioctl_args ap /*{
351 int fd;
352 u_long com;
353 caddr_t data;
354 }*/ ;
355 struct file *fp;
356 int error;
357
358 if ((error = fget(td, uap->fd, CAP_IOCTL, &fp)) != 0)
359 return (error);
360 if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
361 fdrop(fp, td);
362 return (EBADF);
363 }
364
365 switch (uap->com) {
366 case MDIOCATTACH_32: /* FALLTHROUGH */
367 case MDIOCDETACH_32: /* FALLTHROUGH */
368 case MDIOCQUERY_32: /* FALLTHROUGH */
369 case MDIOCLIST_32:
370 error = freebsd32_ioctl_md(td, uap, fp);
371 break;
372
373 case CDIOREADTOCENTRYS_32:
374 error = freebsd32_ioctl_ioc_read_toc(td, uap, fp);
375 break;
376
377 case CDIOREADTOCHEADER_32:
378 error = freebsd32_ioctl_ioc_toc_header(td, uap, fp);
379 break;
380
381 case FIODGNAME_32:
382 error = freebsd32_ioctl_fiodgname(td, uap, fp);
383 break;
384
385 case MEMRANGE_GET32: /* FALLTHROUGH */
386 case MEMRANGE_SET32:
387 error = freebsd32_ioctl_memrange(td, uap, fp);
388 break;
389
390 case PCIOCGETCONF_32:
391 error = freebsd32_ioctl_pciocgetconf(td, uap, fp);
392 break;
393
394 default:
395 fdrop(fp, td);
396 ap.fd = uap->fd;
397 ap.com = uap->com;
398 PTRIN_CP(*uap, ap, data);
399 return sys_ioctl(td, &ap);
400 }
401
402 fdrop(fp, td);
403 return error;
404 }
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