1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2015 Dmitry Chagin <dchagin@FreeBSD.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #ifndef _LINUX_MI_H_
29 #define _LINUX_MI_H_
30
31 typedef uint32_t l_dev_t;
32
33 static __inline int
linux_decode_major(l_dev_t _dev)34 linux_decode_major(l_dev_t _dev)
35 {
36
37 return ((_dev & 0xfff00) >> 8);
38 }
39
40 static __inline int
linux_decode_minor(l_dev_t _dev)41 linux_decode_minor(l_dev_t _dev)
42 {
43
44 return ((_dev & 0xff) | ((_dev & 0xfff00000) >> 12));
45 }
46
47 static __inline dev_t
linux_decode_dev(l_dev_t _dev)48 linux_decode_dev(l_dev_t _dev)
49 {
50
51 return (makedev(linux_decode_major(_dev), linux_decode_minor(_dev)));
52 }
53
54 /*
55 * Private Brandinfo flags
56 */
57 #define LINUX_BI_FUTEX_REQUEUE 0x01000000
58
59 /*
60 * poll()
61 */
62 #define LINUX_POLLIN 0x0001
63 #define LINUX_POLLPRI 0x0002
64 #define LINUX_POLLOUT 0x0004
65 #define LINUX_POLLERR 0x0008
66 #define LINUX_POLLHUP 0x0010
67 #define LINUX_POLLNVAL 0x0020
68 #define LINUX_POLLRDNORM 0x0040
69 #define LINUX_POLLRDBAND 0x0080
70 #define LINUX_POLLWRNORM 0x0100
71 #define LINUX_POLLWRBAND 0x0200
72 #define LINUX_POLLMSG 0x0400
73 #define LINUX_POLLREMOVE 0x1000
74 #define LINUX_POLLRDHUP 0x2000
75
76 #define LINUX_IFHWADDRLEN 6
77 #define LINUX_IFNAMSIZ 16
78
79 struct l_sockaddr {
80 unsigned short sa_family;
81 char sa_data[14];
82 };
83
84 #define LINUX_ARPHRD_ETHER 1
85 #define LINUX_ARPHRD_LOOPBACK 772
86
87 /*
88 * Supported address families
89 */
90 #define LINUX_AF_UNSPEC 0
91 #define LINUX_AF_UNIX 1
92 #define LINUX_AF_INET 2
93 #define LINUX_AF_AX25 3
94 #define LINUX_AF_IPX 4
95 #define LINUX_AF_APPLETALK 5
96 #define LINUX_AF_INET6 10
97 #define LINUX_AF_NETLINK 16
98
99 #define LINUX_NETLINK_ROUTE 0
100 #define LINUX_NETLINK_SOCK_DIAG 4
101 #define LINUX_NETLINK_NFLOG 5
102 #define LINUX_NETLINK_SELINUX 7
103 #define LINUX_NETLINK_AUDIT 9
104 #define LINUX_NETLINK_FIB_LOOKUP 10
105 #define LINUX_NETLINK_NETFILTER 12
106 #define LINUX_NETLINK_KOBJECT_UEVENT 15
107
108 /*
109 * net device flags
110 */
111 #define LINUX_IFF_UP 0x0001
112 #define LINUX_IFF_BROADCAST 0x0002
113 #define LINUX_IFF_DEBUG 0x0004
114 #define LINUX_IFF_LOOPBACK 0x0008
115 #define LINUX_IFF_POINTOPOINT 0x0010
116 #define LINUX_IFF_NOTRAILERS 0x0020
117 #define LINUX_IFF_RUNNING 0x0040
118 #define LINUX_IFF_NOARP 0x0080
119 #define LINUX_IFF_PROMISC 0x0100
120 #define LINUX_IFF_ALLMULTI 0x0200
121 #define LINUX_IFF_MASTER 0x0400
122 #define LINUX_IFF_SLAVE 0x0800
123 #define LINUX_IFF_MULTICAST 0x1000
124 #define LINUX_IFF_PORTSEL 0x2000
125 #define LINUX_IFF_AUTOMEDIA 0x4000
126 #define LINUX_IFF_DYNAMIC 0x8000
127
128 /* sigaltstack */
129 #define LINUX_SS_ONSTACK 1
130 #define LINUX_SS_DISABLE 2
131
132 int linux_to_bsd_sigaltstack(int lsa);
133 int bsd_to_linux_sigaltstack(int bsa);
134
135 /* sigset */
136 typedef struct {
137 uint64_t __mask;
138 } l_sigset_t;
139
140 /* primitives to manipulate sigset_t */
141 #define LINUX_SIGEMPTYSET(set) (set).__mask = 0
142 #define LINUX_SIGISMEMBER(set, sig) (1ULL & ((set).__mask >> _SIG_IDX(sig)))
143 #define LINUX_SIGADDSET(set, sig) (set).__mask |= 1ULL << _SIG_IDX(sig)
144
145 void linux_to_bsd_sigset(l_sigset_t *, sigset_t *);
146 void bsd_to_linux_sigset(sigset_t *, l_sigset_t *);
147
148 /* signaling */
149 #define LINUX_SIGHUP 1
150 #define LINUX_SIGINT 2
151 #define LINUX_SIGQUIT 3
152 #define LINUX_SIGILL 4
153 #define LINUX_SIGTRAP 5
154 #define LINUX_SIGABRT 6
155 #define LINUX_SIGIOT LINUX_SIGABRT
156 #define LINUX_SIGBUS 7
157 #define LINUX_SIGFPE 8
158 #define LINUX_SIGKILL 9
159 #define LINUX_SIGUSR1 10
160 #define LINUX_SIGSEGV 11
161 #define LINUX_SIGUSR2 12
162 #define LINUX_SIGPIPE 13
163 #define LINUX_SIGALRM 14
164 #define LINUX_SIGTERM 15
165 #define LINUX_SIGSTKFLT 16
166 #define LINUX_SIGCHLD 17
167 #define LINUX_SIGCONT 18
168 #define LINUX_SIGSTOP 19
169 #define LINUX_SIGTSTP 20
170 #define LINUX_SIGTTIN 21
171 #define LINUX_SIGTTOU 22
172 #define LINUX_SIGURG 23
173 #define LINUX_SIGXCPU 24
174 #define LINUX_SIGXFSZ 25
175 #define LINUX_SIGVTALRM 26
176 #define LINUX_SIGPROF 27
177 #define LINUX_SIGWINCH 28
178 #define LINUX_SIGIO 29
179 #define LINUX_SIGPOLL LINUX_SIGIO
180 #define LINUX_SIGPWR 30
181 #define LINUX_SIGSYS 31
182 #define LINUX_SIGTBLSZ 31
183 #define LINUX_SIGRTMIN 32
184 #define LINUX_SIGRTMAX 64
185
186 #define LINUX_SIG_VALID(sig) ((sig) <= LINUX_SIGRTMAX && (sig) > 0)
187
188 int linux_to_bsd_signal(int sig);
189 int bsd_to_linux_signal(int sig);
190
191 /* sigprocmask actions */
192 #define LINUX_SIG_BLOCK 0
193 #define LINUX_SIG_UNBLOCK 1
194 #define LINUX_SIG_SETMASK 2
195
196 void linux_dev_shm_create(void);
197 void linux_dev_shm_destroy(void);
198
199 /*
200 * mask=0 is not sensible for this application, so it will be taken to mean
201 * a mask equivalent to the value. Otherwise, (word & mask) == value maps to
202 * (word & ~mask) | value in a bitfield for the platform we're converting to.
203 */
204 struct bsd_to_linux_bitmap {
205 int bsd_mask;
206 int bsd_value;
207 int linux_mask;
208 int linux_value;
209 };
210
211 int bsd_to_linux_bits_(int value, struct bsd_to_linux_bitmap *bitmap,
212 size_t mapcnt, int no_value);
213 int linux_to_bsd_bits_(int value, struct bsd_to_linux_bitmap *bitmap,
214 size_t mapcnt, int no_value);
215
216 /*
217 * These functions are used for simplification of BSD <-> Linux bit conversions.
218 * Given `value`, a bit field, these functions will walk the given bitmap table
219 * and set the appropriate bits for the target platform. If any bits were
220 * successfully converted, then the return value is the equivalent of value
221 * represented with the bit values appropriate for the target platform.
222 * Otherwise, the value supplied as `no_value` is returned.
223 */
224 #define bsd_to_linux_bits(_val, _bmap, _noval) \
225 bsd_to_linux_bits_((_val), (_bmap), nitems((_bmap)), (_noval))
226 #define linux_to_bsd_bits(_val, _bmap, _noval) \
227 linux_to_bsd_bits_((_val), (_bmap), nitems((_bmap)), (_noval))
228
229 /*
230 * Easy mapping helpers. BITMAP_EASY_LINUX represents a single bit to be
231 * translated, and the FreeBSD and Linux values are supplied. BITMAP_1t1_LINUX
232 * is the extreme version of this, where not only is it a single bit, but the
233 * name of the macro used to represent the Linux version of a bit literally has
234 * LINUX_ prepended to the normal name.
235 */
236 #define BITMAP_EASY_LINUX(_name, _linux_name) \
237 { \
238 .bsd_value = (_name), \
239 .linux_value = (_linux_name), \
240 }
241 #define BITMAP_1t1_LINUX(_name) BITMAP_EASY_LINUX(_name, LINUX_##_name)
242
243 int bsd_to_linux_errno(int error);
244 void linux_check_errtbl(void);
245
246 #define STATX_BASIC_STATS 0x07ff
247 #define STATX_BTIME 0x0800
248 #define STATX_ALL 0x0fff
249
250 #define STATX_ATTR_COMPRESSED 0x0004
251 #define STATX_ATTR_IMMUTABLE 0x0010
252 #define STATX_ATTR_APPEND 0x0020
253 #define STATX_ATTR_NODUMP 0x0040
254 #define STATX_ATTR_ENCRYPTED 0x0800
255 #define STATX_ATTR_AUTOMOUNT 0x1000
256
257 struct l_statx_timestamp {
258 int64_t tv_sec;
259 int32_t tv_nsec;
260 int32_t __spare0;
261 };
262
263 struct l_statx {
264 uint32_t stx_mask;
265 uint32_t stx_blksize;
266 uint64_t stx_attributes;
267 uint32_t stx_nlink;
268 uint32_t stx_uid;
269 uint32_t stx_gid;
270 uint16_t stx_mode;
271 uint16_t __spare0[1];
272 uint64_t stx_ino;
273 uint64_t stx_size;
274 uint64_t stx_blocks;
275 uint64_t stx_attributes_mask;
276 struct l_statx_timestamp stx_atime;
277 struct l_statx_timestamp stx_btime;
278 struct l_statx_timestamp stx_ctime;
279 struct l_statx_timestamp stx_mtime;
280 uint32_t stx_rdev_major;
281 uint32_t stx_rdev_minor;
282 uint32_t stx_dev_major;
283 uint32_t stx_dev_minor;
284 uint64_t stx_mnt_id;
285 uint64_t __spare2[13];
286 };
287
288 /*
289 * statfs f_flags
290 */
291 #define LINUX_ST_RDONLY 0x0001
292 #define LINUX_ST_NOSUID 0x0002
293 #define LINUX_ST_NODEV 0x0004 /* No native analogue */
294 #define LINUX_ST_NOEXEC 0x0008
295 #define LINUX_ST_SYNCHRONOUS 0x0010
296 #define LINUX_ST_VALID 0x0020
297 #define LINUX_ST_MANDLOCK 0x0040 /* No native analogue */
298 #define LINUX_ST_NOATIME 0x0400
299 #define LINUX_ST_NODIRATIME 0x0800 /* No native analogue */
300 #define LINUX_ST_RELATIME 0x1000 /* No native analogue */
301 #define LINUX_ST_NOSYMFOLLOW 0x2000
302
303 #ifndef lower_32_bits
304 #define lower_32_bits(n) ((uint32_t)((n) & 0xffffffff))
305 #endif
306
307 #ifdef KTRACE
308 #define linux_ktrsigset(s, l) \
309 ktrstruct("l_sigset_t", (s), l)
310 #endif
311
312 void linux_ifnet_init(void);
313 void linux_ifnet_uninit(void);
314 void linux_netlink_register(void);
315 void linux_netlink_deregister(void);
316
317 #endif /* _LINUX_MI_H_ */
318