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