bsd-user/syscall_defs.h

   1 /*
   2  *  System call related declarations
   3  *
   4  *  Copyright (c) 2013-15 Stacey D. Son (sson at FreeBSD)
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef SYSCALL_DEFS_H
  21 #define SYSCALL_DEFS_H
  22
  23 #include <sys/syscall.h>
  24 #include <sys/resource.h>
  25
  26 #include "errno_defs.h"
  27
  28 #include "freebsd/syscall_nr.h"
  29 #include "netbsd/syscall_nr.h"
  30 #include "openbsd/syscall_nr.h"
  31
  32 /*
  33  * machine/_types.h
  34  * or x86/_types.h
  35  */
  36
  37 /*
  38  * time_t seems to be very inconsistly defined for the different *BSD's...
  39  *
  40  * FreeBSD uses a 64bits time_t except on i386
  41  * so we have to add a special case here.
  42  *
  43  * On NetBSD time_t is always defined as an int64_t.  On OpenBSD time_t
  44  * is always defined as an int.
  45  *
  46  */
  47 #if (!defined(TARGET_I386))
  48 typedef int64_t target_time_t;
  49 #else
  50 typedef int32_t target_time_t;
  51 #endif
  52
  53 struct target_iovec {
  54     abi_long iov_base;   /* Starting address */
  55     abi_long iov_len;   /* Number of bytes */
  56 };
  57
  58 /*
  59  *  sys/mman.h
  60  */
  61 #define TARGET_FREEBSD_MAP_RESERVED0080 0x0080  /* previously misimplemented */
  62                                                 /* MAP_INHERIT */
  63 #define TARGET_FREEBSD_MAP_RESERVED0100 0x0100  /* previously unimplemented */
  64                                                 /* MAP_NOEXTEND */
  65 #define TARGET_FREEBSD_MAP_STACK        0x0400  /* region grows down, like a */
  66                                                 /* stack */
  67 #define TARGET_FREEBSD_MAP_NOSYNC       0x0800  /* page to but do not sync */
  68                                                 /* underlying file */
  69
  70 #define TARGET_FREEBSD_MAP_FLAGMASK     0x1ff7
  71
  72 #define TARGET_NETBSD_MAP_INHERIT       0x0080  /* region is retained after */
  73                                                 /* exec */
  74 #define TARGET_NETBSD_MAP_TRYFIXED      0x0400  /* attempt hint address, even */
  75                                                 /* within break */
  76 #define TARGET_NETBSD_MAP_WIRED         0x0800  /* mlock() mapping when it is */
  77                                                 /* established */
  78
  79 #define TARGET_NETBSD_MAP_STACK         0x2000  /* allocated from memory, */
  80                                                 /* swap space (stack) */
  81
  82 #define TARGET_NETBSD_MAP_FLAGMASK      0x3ff7
  83
  84 #define TARGET_OPENBSD_MAP_INHERIT      0x0080  /* region is retained after */
  85                                                 /* exec */
  86 #define TARGET_OPENBSD_MAP_NOEXTEND     0x0100  /* for MAP_FILE, don't change */
  87                                                 /* file size */
  88 #define TARGET_OPENBSD_MAP_TRYFIXED     0x0400  /* attempt hint address, */
  89                                                 /* even within heap */
  90
  91 #define TARGET_OPENBSD_MAP_FLAGMASK     0x17f7
  92
  93 /* XXX */
  94 #define TARGET_BSD_MAP_FLAGMASK         0x3ff7
  95
  96 /*
  97  * sys/time.h
  98  * sys/timex.h
  99  */
 100
 101 typedef abi_long target_freebsd_suseconds_t;
 102
 103 /* compare to sys/timespec.h */
 104 struct target_freebsd_timespec {
 105     target_time_t   tv_sec;     /* seconds */
 106     abi_long                tv_nsec;    /* and nanoseconds */
 107 #if !defined(TARGET_I386) && TARGET_ABI_BITS == 32
 108     abi_long _pad;
 109 #endif
 110 };
 111
 112 #define TARGET_CPUCLOCK_WHICH_PID   0
 113 #define TARGET_CPUCLOCK_WHICH_TID   1
 114
 115 /* sys/umtx.h */
 116 struct target_freebsd__umtx_time {
 117     struct target_freebsd_timespec  _timeout;
 118     uint32_t    _flags;
 119     uint32_t    _clockid;
 120 };
 121
 122 struct target_freebsd_timeval {
 123     target_time_t       tv_sec; /* seconds */
 124     target_freebsd_suseconds_t  tv_usec;/* and microseconds */
 125 #if !defined(TARGET_I386) && TARGET_ABI_BITS == 32
 126     abi_long _pad;
 127 #endif
 128 };
 129
 130 /*
 131  *  sys/resource.h
 132  */
 133 #define TARGET_RLIM_INFINITY    RLIM_INFINITY
 134
 135 #define TARGET_RLIMIT_CPU       0
 136 #define TARGET_RLIMIT_FSIZE     1
 137 #define TARGET_RLIMIT_DATA      2
 138 #define TARGET_RLIMIT_STACK     3
 139 #define TARGET_RLIMIT_CORE      4
 140 #define TARGET_RLIMIT_RSS       5
 141 #define TARGET_RLIMIT_MEMLOCK   6
 142 #define TARGET_RLIMIT_NPROC     7
 143 #define TARGET_RLIMIT_NOFILE    8
 144 #define TARGET_RLIMIT_SBSIZE    9
 145 #define TARGET_RLIMIT_AS        10
 146 #define TARGET_RLIMIT_NPTS      11
 147 #define TARGET_RLIMIT_SWAP      12
 148
 149 struct target_rlimit {
 150     uint64_t rlim_cur;
 151     uint64_t rlim_max;
 152 };
 153
 154 struct target_freebsd_rusage {
 155     struct target_freebsd_timeval ru_utime; /* user time used */
 156     struct target_freebsd_timeval ru_stime; /* system time used */
 157     abi_long    ru_maxrss;      /* maximum resident set size */
 158     abi_long    ru_ixrss;       /* integral shared memory size */
 159     abi_long    ru_idrss;       /* integral unshared data size */
 160     abi_long    ru_isrss;       /* integral unshared stack size */
 161     abi_long    ru_minflt;      /* page reclaims */
 162     abi_long    ru_majflt;      /* page faults */
 163     abi_long    ru_nswap;       /* swaps */
 164     abi_long    ru_inblock;     /* block input operations */
 165     abi_long    ru_oublock;     /* block output operations */
 166     abi_long    ru_msgsnd;      /* messages sent */
 167     abi_long    ru_msgrcv;      /* messages received */
 168     abi_long    ru_nsignals;    /* signals received */
 169     abi_long    ru_nvcsw;       /* voluntary context switches */
 170     abi_long    ru_nivcsw;      /* involuntary context switches */
 171 };
 172
 173 struct target_freebsd__wrusage {
 174     struct target_freebsd_rusage wru_self;
 175     struct target_freebsd_rusage wru_children;
 176 };
 177
 178 /*
 179  * sys/stat.h
 180  */
 181 struct target_freebsd11_stat {
 182     uint32_t  st_dev;       /* inode's device */
 183     uint32_t  st_ino;       /* inode's number */
 184     int16_t   st_mode;      /* inode protection mode */
 185     int16_t   st_nlink;     /* number of hard links */
 186     uint32_t  st_uid;       /* user ID of the file's owner */
 187     uint32_t  st_gid;       /* group ID of the file's group */
 188     uint32_t  st_rdev;      /* device type */
 189     struct  target_freebsd_timespec st_atim; /* time last accessed */
 190     struct  target_freebsd_timespec st_mtim; /* time last data modification */
 191     struct  target_freebsd_timespec st_ctim; /* time last file status change */
 192     int64_t    st_size;     /* file size, in bytes */
 193     int64_t    st_blocks;   /* blocks allocated for file */
 194     uint32_t   st_blksize;  /* optimal blocksize for I/O */
 195     uint32_t   st_flags;    /* user defined flags for file */
 196     uint32_t   st_gen;      /* file generation number */
 197     int32_t    st_lspare;
 198     struct target_freebsd_timespec st_birthtim; /* time of file creation */
 199     /*
 200      * Explicitly pad st_birthtim to 16 bytes so that the size of
 201      * struct stat is backwards compatible.  We use bitfields instead
 202      * of an array of chars so that this doesn't require a C99 compiler
 203      * to compile if the size of the padding is 0.  We use 2 bitfields
 204      * to cover up to 64 bits on 32-bit machines.  We assume that
 205      * CHAR_BIT is 8...
 206      */
 207     unsigned int:(8 / 2) * (16 - (int)sizeof(struct target_freebsd_timespec));
 208     unsigned int:(8 / 2) * (16 - (int)sizeof(struct target_freebsd_timespec));
 209 } __packed;
 210
 211 #if defined(__i386__)
 212 #define TARGET_HAS_STAT_TIME_T_EXT       1
 213 #endif
 214
 215 struct target_stat {
 216     uint64_t  st_dev;               /* inode's device */
 217     uint64_t  st_ino;               /* inode's number */
 218     uint64_t  st_nlink;             /* number of hard links */
 219     int16_t   st_mode;              /* inode protection mode */
 220     int16_t   st_padding0;
 221     uint32_t  st_uid;               /* user ID of the file's owner */
 222     uint32_t  st_gid;               /* group ID of the file's group */
 223     int32_t   st_padding1;
 224     uint64_t  st_rdev;              /* device type */
 225 #ifdef TARGET_HAS_STAT_TIME_T_EXT
 226     int32_t   st_atim_ext;
 227 #endif
 228     struct  target_freebsd_timespec st_atim; /* time of last access */
 229 #ifdef TARGET_HAS_STAT_TIME_T_EXT
 230     int32_t   st_mtim_ext;
 231 #endif
 232     struct  target_freebsd_timespec st_mtim; /* time of last data modification */
 233 #ifdef TARGET_HAS_STAT_TIME_T_EXT
 234     int32_t st_ctim_ext;
 235 #endif
 236     struct  target_freebsd_timespec st_ctim;/* time of last file status change */
 237 #ifdef TARGET_HAS_STAT_TIME_T_EXT
 238     int32_t st_btim_ext;
 239 #endif
 240     struct  target_freebsd_timespec st_birthtim;   /* time of file creation */
 241     int64_t   st_size;              /* file size, in bytes */
 242     int64_t   st_blocks;            /* blocks allocated for file */
 243     uint32_t  st_blksize;           /* optimal blocksize for I/O */
 244     uint32_t  st_flags;             /* user defined flags for file */
 245     uint64_t  st_gen;               /* file generation number */
 246     uint64_t  st_spare[10];
 247 };
 248
 249
 250 /* struct nstat is the same as stat above but without the st_lspare field */
 251 struct target_freebsd11_nstat {
 252     uint32_t  st_dev;       /* inode's device */
 253     uint32_t  st_ino;       /* inode's number */
 254     int16_t   st_mode;      /* inode protection mode */
 255     int16_t   st_nlink;     /* number of hard links */
 256     uint32_t  st_uid;       /* user ID of the file's owner */
 257     uint32_t  st_gid;       /* group ID of the file's group */
 258     uint32_t  st_rdev;      /* device type */
 259     struct  target_freebsd_timespec st_atim; /* time last accessed */
 260     struct  target_freebsd_timespec st_mtim; /* time last data modification */
 261     struct  target_freebsd_timespec st_ctim; /* time last file status change */
 262     int64_t    st_size;     /* file size, in bytes */
 263     int64_t    st_blocks;   /* blocks allocated for file */
 264     uint32_t   st_blksize;  /* optimal blocksize for I/O */
 265     uint32_t   st_flags;    /* user defined flags for file */
 266     uint32_t   st_gen;      /* file generation number */
 267     struct target_freebsd_timespec st_birthtim; /* time of file creation */
 268     /*
 269      * Explicitly pad st_birthtim to 16 bytes so that the size of
 270      * struct stat is backwards compatible.  We use bitfields instead
 271      * of an array of chars so that this doesn't require a C99 compiler
 272      * to compile if the size of the padding is 0.  We use 2 bitfields
 273      * to cover up to 64 bits on 32-bit machines.  We assume that
 274      * CHAR_BIT is 8...
 275      */
 276     unsigned int:(8 / 2) * (16 - (int)sizeof(struct target_freebsd_timespec));
 277     unsigned int:(8 / 2) * (16 - (int)sizeof(struct target_freebsd_timespec));
 278 } __packed;
 279
 280 /*
 281  * sys/mount.h
 282  */
 283
 284 /* filesystem id type */
 285 typedef struct target_freebsd_fsid { int32_t val[2]; } target_freebsd_fsid_t;
 286
 287 /* filesystem statistics */
 288 struct target_freebsd11_statfs {
 289     uint32_t f_version; /* structure version number */
 290     uint32_t f_type;    /* type of filesystem */
 291     uint64_t f_flags;   /* copy of mount exported flags */
 292     uint64_t f_bsize;   /* filesystem fragment size */
 293     uint64_t f_iosize;  /* optimal transfer block size */
 294     uint64_t f_blocks;  /* total data blocks in filesystem */
 295     uint64_t f_bfree;   /* free blocks in filesystem */
 296     int64_t  f_bavail;  /* free blocks avail to non-superuser */
 297     uint64_t f_files;   /* total file nodes in filesystem */
 298     int64_t  f_ffree;   /* free nodes avail to non-superuser */
 299     uint64_t f_syncwrites;  /* count of sync writes since mount */
 300     uint64_t f_asyncwrites; /* count of async writes since mount */
 301     uint64_t f_syncreads;   /* count of sync reads since mount */
 302     uint64_t f_asyncreads;  /* count of async reads since mount */
 303     uint64_t f_spare[10];   /* unused spare */
 304     uint32_t f_namemax; /* maximum filename length */
 305     uint32_t f_owner;   /* user that mounted the filesystem */
 306     target_freebsd_fsid_t   f_fsid; /* filesystem id */
 307     char     f_charspare[80];           /* spare string space */
 308     char     f_fstypename[16];   /* filesys type name */
 309     char     f_mntfromname[88];    /* mount filesystem */
 310     char     f_mntonname[88];      /* dir on which mounted*/
 311 };
 312
 313 struct target_statfs {
 314     uint32_t f_version;             /* structure version number */
 315     uint32_t f_type;                /* type of filesystem */
 316     uint64_t f_flags;               /* copy of mount exported flags */
 317     uint64_t f_bsize;               /* filesystem fragment size */
 318     uint64_t f_iosize;              /* optimal transfer block size */
 319     uint64_t f_blocks;              /* total data blocks in filesystem */
 320     uint64_t f_bfree;               /* free blocks in filesystem */
 321     int64_t  f_bavail;              /* free blocks avail to non-superuser */
 322     uint64_t f_files;               /* total file nodes in filesystem */
 323     int64_t  f_ffree;               /* free nodes avail to non-superuser */
 324     uint64_t f_syncwrites;          /* count of sync writes since mount */
 325     uint64_t f_asyncwrites;         /* count of async writes since mount */
 326     uint64_t f_syncreads;           /* count of sync reads since mount */
 327     uint64_t f_asyncreads;          /* count of async reads since mount */
 328     uint64_t f_spare[10];           /* unused spare */
 329     uint32_t f_namemax;             /* maximum filename length */
 330     uint32_t f_owner;               /* user that mounted the filesystem */
 331     target_freebsd_fsid_t f_fsid;   /* filesystem id */
 332     char      f_charspare[80];      /* spare string space */
 333     char      f_fstypename[16];     /* filesystem type name */
 334     char      f_mntfromname[1024];  /* mounted filesystem */
 335     char      f_mntonname[1024];    /* directory on which mounted */
 336 };
 337
 338 /* File identifier. These are unique per filesystem on a single machine. */
 339 #define TARGET_MAXFIDSZ     16
 340
 341 struct target_freebsd_fid {
 342     uint16_t    fid_len;            /* len of data in bytes */
 343     uint16_t    fid_data0;          /* force longword align */
 344     char        fid_data[TARGET_MAXFIDSZ];  /* data (variable len) */
 345 };
 346
 347 /* Generic file handle */
 348 struct target_freebsd_fhandle {
 349     target_freebsd_fsid_t   fh_fsid;    /* Filesystem id of mount point */
 350     struct target_freebsd_fid fh_fid;   /* Filesys specific id */
 351 };
 352 typedef struct target_freebsd_fhandle target_freebsd_fhandle_t;
 353
 354 /*
 355  * sys/fcntl.h
 356  */
 357 #define TARGET_F_DUPFD              0
 358 #define TARGET_F_GETFD              1
 359 #define TARGET_F_SETFD              2
 360 #define TARGET_F_GETFL              3
 361 #define TARGET_F_SETFL              4
 362 #define TARGET_F_GETOWN             5
 363 #define TARGET_F_SETOWN             6
 364 #define TARGET_F_OGETLK             7
 365 #define TARGET_F_OSETLK             8
 366 #define TARGET_F_OSETLKW            9
 367 #define TARGET_F_DUP2FD             10
 368 #define TARGET_F_GETLK              11
 369 #define TARGET_F_SETLK              12
 370 #define TARGET_F_SETLKW             13
 371 #define TARGET_F_SETLK_REMOTE       14
 372 #define TARGET_F_READAHEAD          15
 373 #define TARGET_F_RDAHEAD            16
 374 #define TARGET_F_DUPFD_CLOEXEC     17
 375 #define TARGET_F_DUP2FD_CLOEXEC    18
 376 /* FreeBSD-specific */
 377 #define TARGET_F_ADD_SEALS          19
 378 #define TARGET_F_GET_SEALS          20
 379
 380 struct target_freebsd_flock {
 381     int64_t l_start;
 382     int64_t l_len;
 383     int32_t l_pid;
 384     int16_t l_type;
 385     int16_t l_whence;
 386     int32_t l_sysid;
 387 } QEMU_PACKED;
 388
 389 /* sys/unistd.h */
 390 /* user: vfork(2) semantics, clear signals */
 391 #define TARGET_RFSPAWN (1U << 31)
 392
 393 /*
 394  * from sys/procctl.h
 395  */
 396 #define TARGET_PROC_SPROTECT            1
 397 #define TARGET_PROC_REAP_ACQUIRE        2
 398 #define TARGET_PROC_REAP_RELEASE        3
 399 #define TARGET_PROC_REAP_STATUS         4
 400 #define TARGET_PROC_REAP_GETPIDS        5
 401 #define TARGET_PROC_REAP_KILL           6
 402
 403 struct target_procctl_reaper_status {
 404     uint32_t rs_flags;
 405     uint32_t rs_children;
 406     uint32_t rs_descendants;
 407     uint32_t rs_reaper;
 408     uint32_t rs_pid;
 409     uint32_t rs_pad0[15];
 410 };
 411
 412 struct target_procctl_reaper_pidinfo {
 413     uint32_t pi_pid;
 414     uint32_t pi_subtree;
 415     uint32_t pi_flags;
 416     uint32_t pi_pad0[15];
 417 };
 418
 419 struct target_procctl_reaper_pids {
 420     uint32_t rp_count;
 421     uint32_t rp_pad0[15];
 422     abi_ulong rp_pids;
 423 };
 424
 425 struct target_procctl_reaper_kill {
 426     int32_t  rk_sig;
 427     uint32_t rk_flags;
 428     uint32_t rk_subtree;
 429     uint32_t rk_killed;
 430     uint32_t rk_fpid;
 431     uint32_t rk_pad0[15];
 432 };
 433
 434
 435 #define safe_syscall0(type, name) \
 436 type safe_##name(void) \
 437 { \
 438     return safe_syscall(SYS_##name); \
 439 }
 440
 441 #define safe_syscall1(type, name, type1, arg1) \
 442 type safe_##name(type1 arg1) \
 443 { \
 444     return safe_syscall(SYS_##name, arg1); \
 445 }
 446
 447 #define safe_syscall2(type, name, type1, arg1, type2, arg2) \
 448 type safe_##name(type1 arg1, type2 arg2) \
 449 { \
 450     return safe_syscall(SYS_##name, arg1, arg2); \
 451 }
 452
 453 #define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
 454 type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
 455 { \
 456     return safe_syscall(SYS_##name, arg1, arg2, arg3); \
 457 }
 458
 459 #define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
 460     type4, arg4) \
 461 type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
 462 { \
 463     return safe_syscall(SYS_##name, arg1, arg2, arg3, arg4); \
 464 }
 465
 466 #define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
 467     type4, arg4, type5, arg5) \
 468 type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
 469     type5 arg5) \
 470 { \
 471     return safe_syscall(SYS_##name, arg1, arg2, arg3, arg4, arg5); \
 472 }
 473
 474 #define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
 475     type4, arg4, type5, arg5, type6, arg6) \
 476 type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
 477     type5 arg5, type6 arg6) \
 478 { \
 479     return safe_syscall(SYS_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
 480 }
 481
 482 #define safe_fcntl(...) safe_syscall(SYS_fcntl, __VA_ARGS__)
 483
 484 /* So far all target and host bitmasks are the same */
 485 #undef  target_to_host_bitmask
 486 #define target_to_host_bitmask(x, tbl) (x)
 487 #undef  host_to_target_bitmask
 488 #define host_to_target_bitmask(x, tbl) (x)
 489
 490 #endif /* SYSCALL_DEFS_H */