1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2008 David E. O'Brien
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the author nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD: releng/12.0/sys/compat/freebsd32/freebsd32_ioctl.c 339186 2018-10-04 23:55:03Z brooks $");
34
35 #include <sys/param.h>
36 #include <sys/capsicum.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/memrange.h>
44 #include <sys/pciio.h>
45 #include <sys/proc.h>
46 #include <sys/syscall.h>
47 #include <sys/syscallsubr.h>
48 #include <sys/sysctl.h>
49 #include <sys/sysent.h>
50 #include <sys/sysproto.h>
51 #include <sys/systm.h>
52 #include <sys/uio.h>
53
54 #include <compat/freebsd32/freebsd32.h>
55 #include <compat/freebsd32/freebsd32_ioctl.h>
56 #include <compat/freebsd32/freebsd32_misc.h>
57 #include <compat/freebsd32/freebsd32_proto.h>
58
59 CTASSERT(sizeof(struct mem_range_op32) == 12);
60
61 static int
62 freebsd32_ioctl_fiodgname(struct thread *td,
63 struct freebsd32_ioctl_args *uap, struct file *fp)
64 {
65 struct fiodgname_arg fgn;
66 struct fiodgname_arg32 fgn32;
67 int error;
68
69 if ((error = copyin(uap->data, &fgn32, sizeof fgn32)) != 0)
70 return (error);
71 CP(fgn32, fgn, len);
72 PTRIN_CP(fgn32, fgn, buf);
73 error = fo_ioctl(fp, FIODGNAME, (caddr_t)&fgn, td->td_ucred, td);
74 return (error);
75 }
76
77 static int
78 freebsd32_ioctl_memrange(struct thread *td,
79 struct freebsd32_ioctl_args *uap, struct file *fp)
80 {
81 struct mem_range_op mro;
82 struct mem_range_op32 mro32;
83 int error;
84 u_long com;
85
86 if ((error = copyin(uap->data, &mro32, sizeof(mro32))) != 0)
87 return (error);
88
89 PTRIN_CP(mro32, mro, mo_desc);
90 CP(mro32, mro, mo_arg[0]);
91 CP(mro32, mro, mo_arg[1]);
92
93 com = 0;
94 switch (uap->com) {
95 case MEMRANGE_GET32:
96 com = MEMRANGE_GET;
97 break;
98
99 case MEMRANGE_SET32:
100 com = MEMRANGE_SET;
101 break;
102
103 default:
104 panic("%s: unknown MEMRANGE %#x", __func__, uap->com);
105 }
106
107 if ((error = fo_ioctl(fp, com, (caddr_t)&mro, td->td_ucred, td)) != 0)
108 return (error);
109
110 if ( (com & IOC_OUT) ) {
111 CP(mro, mro32, mo_arg[0]);
112 CP(mro, mro32, mo_arg[1]);
113
114 error = copyout(&mro32, uap->data, sizeof(mro32));
115 }
116
117 return (error);
118 }
119
120 static int
121 freebsd32_ioctl_barmmap(struct thread *td,
122 struct freebsd32_ioctl_args *uap, struct file *fp)
123 {
124 struct pci_bar_mmap32 pbm32;
125 struct pci_bar_mmap pbm;
126 int error;
127
128 error = copyin(uap->data, &pbm32, sizeof(pbm32));
129 if (error != 0)
130 return (error);
131 PTRIN_CP(pbm32, pbm, pbm_map_base);
132 CP(pbm32, pbm, pbm_sel);
133 CP(pbm32, pbm, pbm_reg);
134 CP(pbm32, pbm, pbm_flags);
135 CP(pbm32, pbm, pbm_memattr);
136 pbm.pbm_bar_length = PAIR32TO64(uint64_t, pbm32.pbm_bar_length);
137 error = fo_ioctl(fp, PCIOCBARMMAP, (caddr_t)&pbm, td->td_ucred, td);
138 if (error == 0) {
139 PTROUT_CP(pbm, pbm32, pbm_map_base);
140 CP(pbm, pbm32, pbm_map_length);
141 #if BYTE_ORDER == LITTLE_ENDIAN
142 pbm32.pbm_bar_length1 = pbm.pbm_bar_length;
143 pbm32.pbm_bar_length2 = pbm.pbm_bar_length >> 32;
144 #else
145 pbm32.pbm_bar_length1 = pbm.pbm_bar_length >> 32;
146 pbm32.pbm_bar_length2 = pbm.pbm_bar_length;
147 #endif
148 CP(pbm, pbm32, pbm_bar_off);
149 error = copyout(&pbm32, uap->data, sizeof(pbm32));
150 }
151 return (error);
152 }
153
154 static int
155 freebsd32_ioctl_sg(struct thread *td,
156 struct freebsd32_ioctl_args *uap, struct file *fp)
157 {
158 struct sg_io_hdr io;
159 struct sg_io_hdr32 io32;
160 int error;
161
162 if ((error = copyin(uap->data, &io32, sizeof(io32))) != 0)
163 return (error);
164
165 CP(io32, io, interface_id);
166 CP(io32, io, dxfer_direction);
167 CP(io32, io, cmd_len);
168 CP(io32, io, mx_sb_len);
169 CP(io32, io, iovec_count);
170 CP(io32, io, dxfer_len);
171 PTRIN_CP(io32, io, dxferp);
172 PTRIN_CP(io32, io, cmdp);
173 PTRIN_CP(io32, io, sbp);
174 CP(io32, io, timeout);
175 CP(io32, io, flags);
176 CP(io32, io, pack_id);
177 PTRIN_CP(io32, io, usr_ptr);
178 CP(io32, io, status);
179 CP(io32, io, masked_status);
180 CP(io32, io, msg_status);
181 CP(io32, io, sb_len_wr);
182 CP(io32, io, host_status);
183 CP(io32, io, driver_status);
184 CP(io32, io, resid);
185 CP(io32, io, duration);
186 CP(io32, io, info);
187
188 if ((error = fo_ioctl(fp, SG_IO, (caddr_t)&io, td->td_ucred, td)) != 0)
189 return (error);
190
191 CP(io, io32, interface_id);
192 CP(io, io32, dxfer_direction);
193 CP(io, io32, cmd_len);
194 CP(io, io32, mx_sb_len);
195 CP(io, io32, iovec_count);
196 CP(io, io32, dxfer_len);
197 PTROUT_CP(io, io32, dxferp);
198 PTROUT_CP(io, io32, cmdp);
199 PTROUT_CP(io, io32, sbp);
200 CP(io, io32, timeout);
201 CP(io, io32, flags);
202 CP(io, io32, pack_id);
203 PTROUT_CP(io, io32, usr_ptr);
204 CP(io, io32, status);
205 CP(io, io32, masked_status);
206 CP(io, io32, msg_status);
207 CP(io, io32, sb_len_wr);
208 CP(io, io32, host_status);
209 CP(io, io32, driver_status);
210 CP(io, io32, resid);
211 CP(io, io32, duration);
212 CP(io, io32, info);
213
214 error = copyout(&io32, uap->data, sizeof(io32));
215
216 return (error);
217 }
218
219 int
220 freebsd32_ioctl(struct thread *td, struct freebsd32_ioctl_args *uap)
221 {
222 struct ioctl_args ap /*{
223 int fd;
224 u_long com;
225 caddr_t data;
226 }*/ ;
227 struct file *fp;
228 cap_rights_t rights;
229 int error;
230
231 error = fget(td, uap->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
232 if (error != 0)
233 return (error);
234 if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
235 fdrop(fp, td);
236 return (EBADF);
237 }
238
239 switch (uap->com) {
240 case FIODGNAME_32:
241 error = freebsd32_ioctl_fiodgname(td, uap, fp);
242 break;
243
244 case MEMRANGE_GET32: /* FALLTHROUGH */
245 case MEMRANGE_SET32:
246 error = freebsd32_ioctl_memrange(td, uap, fp);
247 break;
248
249 case SG_IO_32:
250 error = freebsd32_ioctl_sg(td, uap, fp);
251 break;
252
253 case PCIOCBARMMAP_32:
254 error = freebsd32_ioctl_barmmap(td, uap, fp);
255 break;
256
257 default:
258 fdrop(fp, td);
259 ap.fd = uap->fd;
260 ap.com = uap->com;
261 PTRIN_CP(*uap, ap, data);
262 return sys_ioctl(td, &ap);
263 }
264
265 fdrop(fp, td);
266 return (error);
267 }
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