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 #define LINUX_ARPHRD_SIT 776 87 88 /* 89 * Supported address families 90 */ 91 #define LINUX_AF_UNSPEC 0 92 #define LINUX_AF_UNIX 1 93 #define LINUX_AF_INET 2 94 #define LINUX_AF_AX25 3 95 #define LINUX_AF_IPX 4 96 #define LINUX_AF_APPLETALK 5 97 #define LINUX_AF_INET6 10 98 #define LINUX_AF_NETLINK 16 99 100 #define LINUX_NETLINK_ROUTE 0 101 #define LINUX_NETLINK_SOCK_DIAG 4 102 #define LINUX_NETLINK_NFLOG 5 103 #define LINUX_NETLINK_SELINUX 7 104 #define LINUX_NETLINK_AUDIT 9 105 #define LINUX_NETLINK_FIB_LOOKUP 10 106 #define LINUX_NETLINK_NETFILTER 12 107 #define LINUX_NETLINK_KOBJECT_UEVENT 15 108 109 /* 110 * net device flags 111 */ 112 #define LINUX_IFF_UP 0x0001 113 #define LINUX_IFF_BROADCAST 0x0002 114 #define LINUX_IFF_DEBUG 0x0004 115 #define LINUX_IFF_LOOPBACK 0x0008 116 #define LINUX_IFF_POINTOPOINT 0x0010 117 #define LINUX_IFF_NOTRAILERS 0x0020 118 #define LINUX_IFF_RUNNING 0x0040 119 #define LINUX_IFF_NOARP 0x0080 120 #define LINUX_IFF_PROMISC 0x0100 121 #define LINUX_IFF_ALLMULTI 0x0200 122 #define LINUX_IFF_MASTER 0x0400 123 #define LINUX_IFF_SLAVE 0x0800 124 #define LINUX_IFF_MULTICAST 0x1000 125 #define LINUX_IFF_PORTSEL 0x2000 126 #define LINUX_IFF_AUTOMEDIA 0x4000 127 #define LINUX_IFF_DYNAMIC 0x8000 128 /* Volatile (netlink / ifinfomsg); not representable in ifr_flags short */ 129 #define LINUX_IFF_LOWER_UP 0x10000 130 #define LINUX_IFF_DORMANT 0x20000 131 132 /* sigaltstack */ 133 #define LINUX_SS_ONSTACK 1 134 #define LINUX_SS_DISABLE 2 135 136 int linux_to_bsd_sigaltstack(int lsa); 137 int bsd_to_linux_sigaltstack(int bsa); 138 139 /* sigset */ 140 typedef struct { 141 uint64_t __mask; 142 } l_sigset_t; 143 144 /* primitives to manipulate sigset_t */ 145 #define LINUX_SIGEMPTYSET(set) (set).__mask = 0 146 #define LINUX_SIGISMEMBER(set, sig) (1ULL & ((set).__mask >> _SIG_IDX(sig))) 147 #define LINUX_SIGADDSET(set, sig) (set).__mask |= 1ULL << _SIG_IDX(sig) 148 149 void linux_to_bsd_sigset(l_sigset_t *, sigset_t *); 150 void bsd_to_linux_sigset(sigset_t *, l_sigset_t *); 151 152 /* signaling */ 153 #define LINUX_SIGHUP 1 154 #define LINUX_SIGINT 2 155 #define LINUX_SIGQUIT 3 156 #define LINUX_SIGILL 4 157 #define LINUX_SIGTRAP 5 158 #define LINUX_SIGABRT 6 159 #define LINUX_SIGIOT LINUX_SIGABRT 160 #define LINUX_SIGBUS 7 161 #define LINUX_SIGFPE 8 162 #define LINUX_SIGKILL 9 163 #define LINUX_SIGUSR1 10 164 #define LINUX_SIGSEGV 11 165 #define LINUX_SIGUSR2 12 166 #define LINUX_SIGPIPE 13 167 #define LINUX_SIGALRM 14 168 #define LINUX_SIGTERM 15 169 #define LINUX_SIGSTKFLT 16 170 #define LINUX_SIGCHLD 17 171 #define LINUX_SIGCONT 18 172 #define LINUX_SIGSTOP 19 173 #define LINUX_SIGTSTP 20 174 #define LINUX_SIGTTIN 21 175 #define LINUX_SIGTTOU 22 176 #define LINUX_SIGURG 23 177 #define LINUX_SIGXCPU 24 178 #define LINUX_SIGXFSZ 25 179 #define LINUX_SIGVTALRM 26 180 #define LINUX_SIGPROF 27 181 #define LINUX_SIGWINCH 28 182 #define LINUX_SIGIO 29 183 #define LINUX_SIGPOLL LINUX_SIGIO 184 #define LINUX_SIGPWR 30 185 #define LINUX_SIGSYS 31 186 #define LINUX_SIGTBLSZ 31 187 #define LINUX_SIGRTMIN 32 188 #define LINUX_SIGRTMAX 64 189 190 #define LINUX_SIG_VALID(sig) ((sig) <= LINUX_SIGRTMAX && (sig) > 0) 191 192 int linux_to_bsd_signal(int sig); 193 int bsd_to_linux_signal(int sig); 194 195 /* sigprocmask actions */ 196 #define LINUX_SIG_BLOCK 0 197 #define LINUX_SIG_UNBLOCK 1 198 #define LINUX_SIG_SETMASK 2 199 200 void linux_dev_shm_create(void); 201 void linux_dev_shm_destroy(void); 202 203 /* 204 * mask=0 is not sensible for this application, so it will be taken to mean 205 * a mask equivalent to the value. Otherwise, (word & mask) == value maps to 206 * (word & ~mask) | value in a bitfield for the platform we're converting to. 207 */ 208 struct bsd_to_linux_bitmap { 209 int bsd_mask; 210 int bsd_value; 211 int linux_mask; 212 int linux_value; 213 }; 214 215 int bsd_to_linux_bits_(int value, struct bsd_to_linux_bitmap *bitmap, 216 size_t mapcnt, int no_value); 217 int linux_to_bsd_bits_(int value, struct bsd_to_linux_bitmap *bitmap, 218 size_t mapcnt, int no_value); 219 220 /* 221 * These functions are used for simplification of BSD <-> Linux bit conversions. 222 * Given `value`, a bit field, these functions will walk the given bitmap table 223 * and set the appropriate bits for the target platform. If any bits were 224 * successfully converted, then the return value is the equivalent of value 225 * represented with the bit values appropriate for the target platform. 226 * Otherwise, the value supplied as `no_value` is returned. 227 */ 228 #define bsd_to_linux_bits(_val, _bmap, _noval) \ 229 bsd_to_linux_bits_((_val), (_bmap), nitems((_bmap)), (_noval)) 230 #define linux_to_bsd_bits(_val, _bmap, _noval) \ 231 linux_to_bsd_bits_((_val), (_bmap), nitems((_bmap)), (_noval)) 232 233 /* 234 * Easy mapping helpers. BITMAP_EASY_LINUX represents a single bit to be 235 * translated, and the FreeBSD and Linux values are supplied. BITMAP_1t1_LINUX 236 * is the extreme version of this, where not only is it a single bit, but the 237 * name of the macro used to represent the Linux version of a bit literally has 238 * LINUX_ prepended to the normal name. 239 */ 240 #define BITMAP_EASY_LINUX(_name, _linux_name) \ 241 { \ 242 .bsd_value = (_name), \ 243 .linux_value = (_linux_name), \ 244 } 245 #define BITMAP_1t1_LINUX(_name) BITMAP_EASY_LINUX(_name, LINUX_##_name) 246 247 int bsd_to_linux_errno(int error); 248 void linux_check_errtbl(void); 249 250 #define STATX_BASIC_STATS 0x07ff 251 #define STATX_BTIME 0x0800 252 #define STATX_ALL 0x0fff 253 254 #define STATX_ATTR_COMPRESSED 0x0004 255 #define STATX_ATTR_IMMUTABLE 0x0010 256 #define STATX_ATTR_APPEND 0x0020 257 #define STATX_ATTR_NODUMP 0x0040 258 #define STATX_ATTR_ENCRYPTED 0x0800 259 #define STATX_ATTR_AUTOMOUNT 0x1000 260 261 struct l_statx_timestamp { 262 int64_t tv_sec; 263 int32_t tv_nsec; 264 int32_t __spare0; 265 }; 266 267 struct l_statx { 268 uint32_t stx_mask; 269 uint32_t stx_blksize; 270 uint64_t stx_attributes; 271 uint32_t stx_nlink; 272 uint32_t stx_uid; 273 uint32_t stx_gid; 274 uint16_t stx_mode; 275 uint16_t __spare0[1]; 276 uint64_t stx_ino; 277 uint64_t stx_size; 278 uint64_t stx_blocks; 279 uint64_t stx_attributes_mask; 280 struct l_statx_timestamp stx_atime; 281 struct l_statx_timestamp stx_btime; 282 struct l_statx_timestamp stx_ctime; 283 struct l_statx_timestamp stx_mtime; 284 uint32_t stx_rdev_major; 285 uint32_t stx_rdev_minor; 286 uint32_t stx_dev_major; 287 uint32_t stx_dev_minor; 288 uint64_t stx_mnt_id; 289 uint64_t __spare2[13]; 290 }; 291 292 /* 293 * statfs f_flags 294 */ 295 #define LINUX_ST_RDONLY 0x0001 296 #define LINUX_ST_NOSUID 0x0002 297 #define LINUX_ST_NODEV 0x0004 /* No native analogue */ 298 #define LINUX_ST_NOEXEC 0x0008 299 #define LINUX_ST_SYNCHRONOUS 0x0010 300 #define LINUX_ST_VALID 0x0020 301 #define LINUX_ST_MANDLOCK 0x0040 /* No native analogue */ 302 #define LINUX_ST_NOATIME 0x0400 303 #define LINUX_ST_NODIRATIME 0x0800 /* No native analogue */ 304 #define LINUX_ST_RELATIME 0x1000 /* No native analogue */ 305 #define LINUX_ST_NOSYMFOLLOW 0x2000 306 307 #ifndef lower_32_bits 308 #define lower_32_bits(n) ((uint32_t)((n) & 0xffffffff)) 309 #endif 310 311 #ifdef KTRACE 312 #define linux_ktrsigset(s, l) \ 313 ktrstruct("l_sigset_t", (s), l) 314 #endif 315 316 void linux_ifnet_init(void); 317 void linux_ifnet_uninit(void); 318 void linux_netlink_register(void); 319 void linux_netlink_deregister(void); 320 321 #endif /* _LINUX_MI_H_ */ 322