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/param.h>
33 #include <sys/capsicum.h>
34 #include <sys/cdio.h>
35 #include <sys/fcntl.h>
36 #include <sys/filio.h>
37 #include <sys/file.h>
38 #include <sys/ioccom.h>
39 #include <sys/malloc.h>
40 #include <sys/memrange.h>
41 #include <sys/pciio.h>
42 #include <sys/proc.h>
43 #include <sys/syscall.h>
44 #include <sys/syscallsubr.h>
45 #include <sys/sysctl.h>
46 #include <sys/sysproto.h>
47 #include <sys/systm.h>
48 #include <sys/uio.h>
49
50 #include <compat/freebsd32/freebsd32.h>
51 #include <compat/freebsd32/freebsd32_ioctl.h>
52 #include <compat/freebsd32/freebsd32_misc.h>
53 #include <compat/freebsd32/freebsd32_proto.h>
54
55 CTASSERT(sizeof(struct mem_range_op32) == 12);
56
57 static int
freebsd32_ioctl_memrange(struct thread * td,struct freebsd32_ioctl_args * uap,struct file * fp)58 freebsd32_ioctl_memrange(struct thread *td,
59 struct freebsd32_ioctl_args *uap, struct file *fp)
60 {
61 struct mem_range_op mro;
62 struct mem_range_op32 mro32;
63 int error;
64 u_long com;
65
66 if ((error = copyin(uap->data, &mro32, sizeof(mro32))) != 0)
67 return (error);
68
69 PTRIN_CP(mro32, mro, mo_desc);
70 CP(mro32, mro, mo_arg[0]);
71 CP(mro32, mro, mo_arg[1]);
72
73 com = _IOC_NEWTYPE(uap->com, struct mem_range_op);
74
75 if ((error = fo_ioctl(fp, com, (caddr_t)&mro, td->td_ucred, td)) != 0)
76 return (error);
77
78 if ( (com & IOC_OUT) ) {
79 CP(mro, mro32, mo_arg[0]);
80 CP(mro, mro32, mo_arg[1]);
81
82 error = copyout(&mro32, uap->data, sizeof(mro32));
83 }
84
85 return (error);
86 }
87
88 static int
freebsd32_ioctl_barmmap(struct thread * td,struct freebsd32_ioctl_args * uap,struct file * fp)89 freebsd32_ioctl_barmmap(struct thread *td,
90 struct freebsd32_ioctl_args *uap, struct file *fp)
91 {
92 struct pci_bar_mmap32 pbm32;
93 struct pci_bar_mmap pbm;
94 int error;
95
96 error = copyin(uap->data, &pbm32, sizeof(pbm32));
97 if (error != 0)
98 return (error);
99 PTRIN_CP(pbm32, pbm, pbm_map_base);
100 CP(pbm32, pbm, pbm_sel);
101 CP(pbm32, pbm, pbm_reg);
102 CP(pbm32, pbm, pbm_flags);
103 CP(pbm32, pbm, pbm_memattr);
104 pbm.pbm_bar_length = PAIR32TO64(uint64_t, pbm32.pbm_bar_length);
105 error = fo_ioctl(fp, PCIOCBARMMAP, (caddr_t)&pbm, td->td_ucred, td);
106 if (error == 0) {
107 PTROUT_CP(pbm, pbm32, pbm_map_base);
108 CP(pbm, pbm32, pbm_map_length);
109 #if BYTE_ORDER == LITTLE_ENDIAN
110 pbm32.pbm_bar_length1 = pbm.pbm_bar_length;
111 pbm32.pbm_bar_length2 = pbm.pbm_bar_length >> 32;
112 #else
113 pbm32.pbm_bar_length1 = pbm.pbm_bar_length >> 32;
114 pbm32.pbm_bar_length2 = pbm.pbm_bar_length;
115 #endif
116 CP(pbm, pbm32, pbm_bar_off);
117 error = copyout(&pbm32, uap->data, sizeof(pbm32));
118 }
119 return (error);
120 }
121
122 static int
freebsd32_ioctl_sg(struct thread * td,struct freebsd32_ioctl_args * uap,struct file * fp)123 freebsd32_ioctl_sg(struct thread *td,
124 struct freebsd32_ioctl_args *uap, struct file *fp)
125 {
126 struct sg_io_hdr io;
127 struct sg_io_hdr32 io32;
128 int error;
129
130 if ((error = copyin(uap->data, &io32, sizeof(io32))) != 0)
131 return (error);
132
133 CP(io32, io, interface_id);
134 CP(io32, io, dxfer_direction);
135 CP(io32, io, cmd_len);
136 CP(io32, io, mx_sb_len);
137 CP(io32, io, iovec_count);
138 CP(io32, io, dxfer_len);
139 PTRIN_CP(io32, io, dxferp);
140 PTRIN_CP(io32, io, cmdp);
141 PTRIN_CP(io32, io, sbp);
142 CP(io32, io, timeout);
143 CP(io32, io, flags);
144 CP(io32, io, pack_id);
145 PTRIN_CP(io32, io, usr_ptr);
146 CP(io32, io, status);
147 CP(io32, io, masked_status);
148 CP(io32, io, msg_status);
149 CP(io32, io, sb_len_wr);
150 CP(io32, io, host_status);
151 CP(io32, io, driver_status);
152 CP(io32, io, resid);
153 CP(io32, io, duration);
154 CP(io32, io, info);
155
156 if ((error = fo_ioctl(fp, SG_IO, (caddr_t)&io, td->td_ucred, td)) != 0)
157 return (error);
158
159 CP(io, io32, interface_id);
160 CP(io, io32, dxfer_direction);
161 CP(io, io32, cmd_len);
162 CP(io, io32, mx_sb_len);
163 CP(io, io32, iovec_count);
164 CP(io, io32, dxfer_len);
165 PTROUT_CP(io, io32, dxferp);
166 PTROUT_CP(io, io32, cmdp);
167 PTROUT_CP(io, io32, sbp);
168 CP(io, io32, timeout);
169 CP(io, io32, flags);
170 CP(io, io32, pack_id);
171 PTROUT_CP(io, io32, usr_ptr);
172 CP(io, io32, status);
173 CP(io, io32, masked_status);
174 CP(io, io32, msg_status);
175 CP(io, io32, sb_len_wr);
176 CP(io, io32, host_status);
177 CP(io, io32, driver_status);
178 CP(io, io32, resid);
179 CP(io, io32, duration);
180 CP(io, io32, info);
181
182 error = copyout(&io32, uap->data, sizeof(io32));
183
184 return (error);
185 }
186
187 int
freebsd32_ioctl(struct thread * td,struct freebsd32_ioctl_args * uap)188 freebsd32_ioctl(struct thread *td, struct freebsd32_ioctl_args *uap)
189 {
190 struct ioctl_args ap /*{
191 int fd;
192 u_long com;
193 caddr_t data;
194 }*/ ;
195 struct file *fp;
196 cap_rights_t rights;
197 int error;
198
199 error = fget(td, uap->fd, cap_rights_init_one(&rights, CAP_IOCTL), &fp);
200 if (error != 0)
201 return (error);
202 if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
203 fdrop(fp, td);
204 return (EBADF);
205 }
206
207 switch (uap->com) {
208 case MEMRANGE_GET32: /* FALLTHROUGH */
209 case MEMRANGE_SET32:
210 error = freebsd32_ioctl_memrange(td, uap, fp);
211 break;
212
213 case SG_IO_32:
214 error = freebsd32_ioctl_sg(td, uap, fp);
215 break;
216
217 case PCIOCBARMMAP_32:
218 error = freebsd32_ioctl_barmmap(td, uap, fp);
219 break;
220
221 default:
222 fdrop(fp, td);
223 ap.fd = uap->fd;
224 ap.com = uap->com;
225 PTRIN_CP(*uap, ap, data);
226 return sys_ioctl(td, &ap);
227 }
228
229 fdrop(fp, td);
230 return (error);
231 }
232