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 34 linux_decode_major(l_dev_t _dev) 35 { 36 37 return ((_dev & 0xfff00) >> 8); 38 } 39 40 static __inline int 41 linux_decode_minor(l_dev_t _dev) 42 { 43 44 return ((_dev & 0xff) | ((_dev & 0xfff00000) >> 12)); 45 } 46 47 static __inline dev_t 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