The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/amd64/linux32/linux.h

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    1 /*-
    2  * Copyright (c) 2004 Tim J. Robbins
    3  * Copyright (c) 2001 Doug Rabson
    4  * Copyright (c) 1994-1996 Søren Schmidt
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer
   12  *    in this position and unchanged.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. The name of the author may not be used to endorse or promote products
   17  *    derived from this software without specific prior written permission
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   29  *
   30  * $FreeBSD: releng/10.2/sys/amd64/linux32/linux.h 272020 2014-09-23 07:50:04Z bz $
   31  */
   32 
   33 #ifndef _AMD64_LINUX_H_
   34 #define _AMD64_LINUX_H_
   35 
   36 #include <amd64/linux32/linux32_syscall.h>
   37 
   38 /*
   39  * debugging support
   40  */
   41 extern u_char linux_debug_map[];
   42 #define ldebug(name)    isclr(linux_debug_map, LINUX_SYS_linux_ ## name)
   43 #define ARGS(nm, fmt)   "linux(%ld): "#nm"("fmt")\n", (long)td->td_proc->p_pid
   44 #define LMSG(fmt)       "linux(%ld): "fmt"\n", (long)td->td_proc->p_pid
   45 #define LINUX_DTRACE    linuxulator32
   46 
   47 #ifdef MALLOC_DECLARE
   48 MALLOC_DECLARE(M_LINUX);
   49 #endif
   50 
   51 #define LINUX32_MAXUSER         ((1ul << 32) - PAGE_SIZE)
   52 #define LINUX32_SHAREDPAGE      (LINUX32_MAXUSER - PAGE_SIZE)
   53 #define LINUX32_USRSTACK        LINUX32_SHAREDPAGE
   54 
   55 /* XXX 16 = sizeof(linux32_ps_strings) */
   56 #define LINUX32_PS_STRINGS      (LINUX32_USRSTACK - 16)
   57 #define LINUX32_MAXDSIZ         (512 * 1024 * 1024)     /* 512MB */
   58 #define LINUX32_MAXSSIZ         (64 * 1024 * 1024)      /* 64MB */
   59 #define LINUX32_MAXVMEM         0                       /* Unlimited */
   60 
   61 #define PTRIN(v)        (void *)(uintptr_t)(v)
   62 #define PTROUT(v)       (l_uintptr_t)(uintptr_t)(v)
   63 
   64 #define CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0)
   65 #define CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0)
   66 #define PTRIN_CP(src,dst,fld) \
   67         do { (dst).fld = PTRIN((src).fld); } while (0)
   68 
   69 /*
   70  * Provide a separate set of types for the Linux types.
   71  */
   72 typedef int             l_int;
   73 typedef int32_t         l_long;
   74 typedef int64_t         l_longlong;
   75 typedef short           l_short;
   76 typedef unsigned int    l_uint;
   77 typedef uint32_t        l_ulong;
   78 typedef uint64_t        l_ulonglong;
   79 typedef unsigned short  l_ushort;
   80 
   81 typedef l_ulong         l_uintptr_t;
   82 typedef l_long          l_clock_t;
   83 typedef l_int           l_daddr_t;
   84 typedef l_ushort        l_dev_t;
   85 typedef l_uint          l_gid_t;
   86 typedef l_ushort        l_gid16_t;
   87 typedef l_ulong         l_ino_t;
   88 typedef l_int           l_key_t;
   89 typedef l_longlong      l_loff_t;
   90 typedef l_ushort        l_mode_t;
   91 typedef l_long          l_off_t;
   92 typedef l_int           l_pid_t;
   93 typedef l_uint          l_size_t;
   94 typedef l_long          l_suseconds_t;
   95 typedef l_long          l_time_t;
   96 typedef l_uint          l_uid_t;
   97 typedef l_ushort        l_uid16_t;
   98 typedef l_int           l_timer_t;
   99 typedef l_int           l_mqd_t;
  100 
  101 typedef struct {
  102         l_int           val[2];
  103 } __packed l_fsid_t;
  104 
  105 typedef struct {
  106         l_time_t        tv_sec;
  107         l_suseconds_t   tv_usec;
  108 } l_timeval;
  109 
  110 #define l_fd_set        fd_set
  111 
  112 /*
  113  * Miscellaneous
  114  */
  115 #define LINUX_AT_COUNT          16      /* Count of used aux entry types.
  116                                          * Keep this synchronized with
  117                                          * elf_linux_fixup() code.
  118                                          */
  119 struct l___sysctl_args
  120 {
  121         l_uintptr_t     name;
  122         l_int           nlen;
  123         l_uintptr_t     oldval;
  124         l_uintptr_t     oldlenp;
  125         l_uintptr_t     newval;
  126         l_size_t        newlen;
  127         l_ulong         __spare[4];
  128 } __packed;
  129 
  130 /* Resource limits */
  131 #define LINUX_RLIMIT_CPU        0
  132 #define LINUX_RLIMIT_FSIZE      1
  133 #define LINUX_RLIMIT_DATA       2
  134 #define LINUX_RLIMIT_STACK      3
  135 #define LINUX_RLIMIT_CORE       4
  136 #define LINUX_RLIMIT_RSS        5
  137 #define LINUX_RLIMIT_NPROC      6
  138 #define LINUX_RLIMIT_NOFILE     7
  139 #define LINUX_RLIMIT_MEMLOCK    8
  140 #define LINUX_RLIMIT_AS         9       /* Address space limit */
  141 
  142 #define LINUX_RLIM_NLIMITS      10
  143 
  144 struct l_rlimit {
  145         l_ulong rlim_cur;
  146         l_ulong rlim_max;
  147 } __packed;
  148 
  149 struct l_rusage {
  150         l_timeval ru_utime;
  151         l_timeval ru_stime;
  152         l_long  ru_maxrss;
  153         l_long  ru_ixrss;
  154         l_long  ru_idrss;
  155         l_long  ru_isrss;
  156         l_long  ru_minflt;
  157         l_long  ru_majflt;
  158         l_long  ru_nswap;
  159         l_long  ru_inblock;
  160         l_long  ru_oublock;
  161         l_long  ru_msgsnd;
  162         l_long  ru_msgrcv;
  163         l_long  ru_nsignals;
  164         l_long  ru_nvcsw;
  165         l_long  ru_nivcsw;
  166 } __packed;
  167 
  168 /* mmap options */
  169 #define LINUX_MAP_SHARED        0x0001
  170 #define LINUX_MAP_PRIVATE       0x0002
  171 #define LINUX_MAP_FIXED         0x0010
  172 #define LINUX_MAP_ANON          0x0020
  173 #define LINUX_MAP_GROWSDOWN     0x0100
  174 
  175 struct l_mmap_argv {
  176         l_uintptr_t     addr;
  177         l_size_t        len;
  178         l_int           prot;
  179         l_int           flags;
  180         l_int           fd;
  181         l_ulong         pgoff;
  182 };
  183 
  184 /*
  185  * stat family of syscalls
  186  */
  187 struct l_timespec {
  188         l_time_t        tv_sec;
  189         l_long          tv_nsec;
  190 } __packed;
  191 
  192 struct l_newstat {
  193         l_ushort        st_dev;
  194         l_ushort        __pad1;
  195         l_ulong         st_ino;
  196         l_ushort        st_mode;
  197         l_ushort        st_nlink;
  198         l_ushort        st_uid;
  199         l_ushort        st_gid;
  200         l_ushort        st_rdev;
  201         l_ushort        __pad2;
  202         l_ulong         st_size;
  203         l_ulong         st_blksize;
  204         l_ulong         st_blocks;
  205         struct l_timespec       st_atim;
  206         struct l_timespec       st_mtim;
  207         struct l_timespec       st_ctim;
  208         l_ulong         __unused4;
  209         l_ulong         __unused5;
  210 } __packed;
  211 
  212 struct l_stat {
  213         l_ushort        st_dev;
  214         l_ulong         st_ino;
  215         l_ushort        st_mode;
  216         l_ushort        st_nlink;
  217         l_ushort        st_uid;
  218         l_ushort        st_gid;
  219         l_ushort        st_rdev;
  220         l_long          st_size;
  221         struct l_timespec       st_atim;
  222         struct l_timespec       st_mtim;
  223         struct l_timespec       st_ctim;
  224         l_long          st_blksize;
  225         l_long          st_blocks;
  226         l_ulong         st_flags;
  227         l_ulong         st_gen;
  228 };
  229 
  230 struct l_stat64 {
  231         l_ushort        st_dev;
  232         u_char          __pad0[10];
  233         l_ulong         __st_ino;
  234         l_uint          st_mode;
  235         l_uint          st_nlink;
  236         l_ulong         st_uid;
  237         l_ulong         st_gid;
  238         l_ushort        st_rdev;
  239         u_char          __pad3[10];
  240         l_longlong      st_size;
  241         l_ulong         st_blksize;
  242         l_ulong         st_blocks;
  243         l_ulong         __pad4;
  244         struct l_timespec       st_atim;
  245         struct l_timespec       st_mtim;
  246         struct l_timespec       st_ctim;
  247         l_ulonglong     st_ino;
  248 } __packed;
  249 
  250 struct l_statfs64 { 
  251         l_int           f_type; 
  252         l_int           f_bsize; 
  253         uint64_t        f_blocks; 
  254         uint64_t        f_bfree; 
  255         uint64_t        f_bavail; 
  256         uint64_t        f_files; 
  257         uint64_t        f_ffree; 
  258         l_fsid_t        f_fsid;
  259         l_int           f_namelen;
  260         l_int           f_spare[6];
  261 } __packed;
  262 
  263 /*
  264  * Signalling
  265  */
  266 #define LINUX_SIGHUP            1
  267 #define LINUX_SIGINT            2
  268 #define LINUX_SIGQUIT           3
  269 #define LINUX_SIGILL            4
  270 #define LINUX_SIGTRAP           5
  271 #define LINUX_SIGABRT           6
  272 #define LINUX_SIGIOT            LINUX_SIGABRT
  273 #define LINUX_SIGBUS            7
  274 #define LINUX_SIGFPE            8
  275 #define LINUX_SIGKILL           9
  276 #define LINUX_SIGUSR1           10
  277 #define LINUX_SIGSEGV           11
  278 #define LINUX_SIGUSR2           12
  279 #define LINUX_SIGPIPE           13
  280 #define LINUX_SIGALRM           14
  281 #define LINUX_SIGTERM           15
  282 #define LINUX_SIGSTKFLT         16
  283 #define LINUX_SIGCHLD           17
  284 #define LINUX_SIGCONT           18
  285 #define LINUX_SIGSTOP           19
  286 #define LINUX_SIGTSTP           20
  287 #define LINUX_SIGTTIN           21
  288 #define LINUX_SIGTTOU           22
  289 #define LINUX_SIGURG            23
  290 #define LINUX_SIGXCPU           24
  291 #define LINUX_SIGXFSZ           25
  292 #define LINUX_SIGVTALRM         26
  293 #define LINUX_SIGPROF           27
  294 #define LINUX_SIGWINCH          28
  295 #define LINUX_SIGIO             29
  296 #define LINUX_SIGPOLL           LINUX_SIGIO
  297 #define LINUX_SIGPWR            30
  298 #define LINUX_SIGSYS            31
  299 #define LINUX_SIGRTMIN          32
  300 
  301 #define LINUX_SIGTBLSZ          31
  302 #define LINUX_NSIG_WORDS        2
  303 #define LINUX_NBPW              32
  304 #define LINUX_NSIG              (LINUX_NBPW * LINUX_NSIG_WORDS)
  305 
  306 /* sigaction flags */
  307 #define LINUX_SA_NOCLDSTOP      0x00000001
  308 #define LINUX_SA_NOCLDWAIT      0x00000002
  309 #define LINUX_SA_SIGINFO        0x00000004
  310 #define LINUX_SA_RESTORER       0x04000000
  311 #define LINUX_SA_ONSTACK        0x08000000
  312 #define LINUX_SA_RESTART        0x10000000
  313 #define LINUX_SA_INTERRUPT      0x20000000
  314 #define LINUX_SA_NOMASK         0x40000000
  315 #define LINUX_SA_ONESHOT        0x80000000
  316 
  317 /* sigprocmask actions */
  318 #define LINUX_SIG_BLOCK         0
  319 #define LINUX_SIG_UNBLOCK       1
  320 #define LINUX_SIG_SETMASK       2
  321 
  322 /* sigset_t macros */
  323 #define LINUX_SIGEMPTYSET(set)          (set).__bits[0] = (set).__bits[1] = 0
  324 #define LINUX_SIGISMEMBER(set, sig)     SIGISMEMBER(set, sig)
  325 #define LINUX_SIGADDSET(set, sig)       SIGADDSET(set, sig)
  326 
  327 /* sigaltstack */
  328 #define LINUX_MINSIGSTKSZ       2048
  329 #define LINUX_SS_ONSTACK        1
  330 #define LINUX_SS_DISABLE        2
  331 
  332 int linux_to_bsd_sigaltstack(int lsa);
  333 int bsd_to_linux_sigaltstack(int bsa);
  334 
  335 typedef l_uintptr_t l_handler_t;
  336 typedef l_ulong l_osigset_t;
  337 
  338 typedef struct {
  339         l_uint  __bits[LINUX_NSIG_WORDS];
  340 } __packed l_sigset_t;
  341 
  342 typedef struct {
  343         l_handler_t     lsa_handler;
  344         l_osigset_t     lsa_mask;
  345         l_ulong         lsa_flags;
  346         l_uintptr_t     lsa_restorer;
  347 } __packed l_osigaction_t;
  348 
  349 typedef struct {
  350         l_handler_t     lsa_handler;
  351         l_ulong         lsa_flags;
  352         l_uintptr_t     lsa_restorer;
  353         l_sigset_t      lsa_mask;
  354 } __packed l_sigaction_t;
  355 
  356 typedef struct {
  357         l_uintptr_t     ss_sp;
  358         l_int           ss_flags;
  359         l_size_t        ss_size;
  360 } __packed l_stack_t;
  361 
  362 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
  363 struct l_sigcontext {
  364         l_uint          sc_gs;
  365         l_uint          sc_fs;
  366         l_uint          sc_es;
  367         l_uint          sc_ds;
  368         l_uint          sc_edi;
  369         l_uint          sc_esi;
  370         l_uint          sc_ebp;
  371         l_uint          sc_esp;
  372         l_uint          sc_ebx;
  373         l_uint          sc_edx;
  374         l_uint          sc_ecx;
  375         l_uint          sc_eax;
  376         l_uint          sc_trapno;
  377         l_uint          sc_err;
  378         l_uint          sc_eip;
  379         l_uint          sc_cs;
  380         l_uint          sc_eflags;
  381         l_uint          sc_esp_at_signal;
  382         l_uint          sc_ss;
  383         l_uint          sc_387;
  384         l_uint          sc_mask;
  385         l_uint          sc_cr2;
  386 } __packed;
  387 
  388 struct l_ucontext {
  389         l_ulong         uc_flags;
  390         l_uintptr_t     uc_link;
  391         l_stack_t       uc_stack;
  392         struct l_sigcontext     uc_mcontext;
  393         l_sigset_t      uc_sigmask;
  394 } __packed;
  395 
  396 #define LINUX_SI_MAX_SIZE       128
  397 #define LINUX_SI_PAD_SIZE       ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
  398 
  399 typedef union l_sigval {
  400         l_int           sival_int;
  401         l_uintptr_t     sival_ptr;
  402 } l_sigval_t;
  403 
  404 typedef struct l_siginfo {
  405         l_int           lsi_signo;
  406         l_int           lsi_errno;
  407         l_int           lsi_code;
  408         union {
  409                 l_int   _pad[LINUX_SI_PAD_SIZE];
  410 
  411                 struct {
  412                         l_pid_t         _pid;
  413                         l_uid_t         _uid;
  414                 } __packed _kill;
  415 
  416                 struct {
  417                         l_timer_t       _tid;
  418                         l_int           _overrun;
  419                         char            _pad[sizeof(l_uid_t) - sizeof(l_int)];
  420                         l_sigval_t      _sigval;
  421                         l_int           _sys_private;
  422                 } __packed _timer;
  423 
  424                 struct {
  425                         l_pid_t         _pid;           /* sender's pid */
  426                         l_uid_t         _uid;           /* sender's uid */
  427                         l_sigval_t      _sigval;
  428                 } __packed _rt;
  429 
  430                 struct {
  431                         l_pid_t         _pid;           /* which child */
  432                         l_uid_t         _uid;           /* sender's uid */
  433                         l_int           _status;        /* exit code */
  434                         l_clock_t       _utime;
  435                         l_clock_t       _stime;
  436                 } __packed _sigchld;
  437 
  438                 struct {
  439                         l_uintptr_t     _addr;  /* Faulting insn/memory ref. */
  440                 } __packed _sigfault;
  441 
  442                 struct {
  443                         l_long          _band;  /* POLL_IN,POLL_OUT,POLL_MSG */
  444                         l_int           _fd;
  445                 } __packed _sigpoll;
  446         } _sifields;
  447 } __packed l_siginfo_t;
  448 
  449 #define lsi_pid         _sifields._kill._pid
  450 #define lsi_uid         _sifields._kill._uid
  451 #define lsi_tid         _sifields._timer._tid
  452 #define lsi_overrun     _sifields._timer._overrun
  453 #define lsi_sys_private _sifields._timer._sys_private
  454 #define lsi_status      _sifields._sigchld._status
  455 #define lsi_utime       _sifields._sigchld._utime
  456 #define lsi_stime       _sifields._sigchld._stime
  457 #define lsi_value       _sifields._rt._sigval
  458 #define lsi_int         _sifields._rt._sigval.sival_int
  459 #define lsi_ptr         _sifields._rt._sigval.sival_ptr
  460 #define lsi_addr        _sifields._sigfault._addr
  461 #define lsi_band        _sifields._sigpoll._band
  462 #define lsi_fd          _sifields._sigpoll._fd
  463 
  464 struct l_fpreg {
  465         u_int16_t       significand[4];
  466         u_int16_t       exponent;
  467 } __packed;
  468 
  469 struct l_fpxreg {
  470         u_int16_t       significand[4];
  471         u_int16_t       exponent;
  472         u_int16_t       padding[3];
  473 } __packed;
  474 
  475 struct l_xmmreg {
  476         u_int32_t       element[4];
  477 } __packed;
  478 
  479 struct l_fpstate {
  480         /* Regular FPU environment */
  481         u_int32_t               cw;
  482         u_int32_t               sw;
  483         u_int32_t               tag;
  484         u_int32_t               ipoff;
  485         u_int32_t               cssel;
  486         u_int32_t               dataoff;
  487         u_int32_t               datasel;
  488         struct l_fpreg          _st[8];
  489         u_int16_t               status;
  490         u_int16_t               magic;          /* 0xffff = regular FPU data */
  491 
  492         /* FXSR FPU environment */
  493         u_int32_t               _fxsr_env[6];   /* env is ignored. */
  494         u_int32_t               mxcsr;
  495         u_int32_t               reserved;
  496         struct l_fpxreg         _fxsr_st[8];    /* reg data is ignored. */
  497         struct l_xmmreg         _xmm[8];
  498         u_int32_t               padding[56];
  499 } __packed;
  500 
  501 /*
  502  * We make the stack look like Linux expects it when calling a signal
  503  * handler, but use the BSD way of calling the handler and sigreturn().
  504  * This means that we need to pass the pointer to the handler too.
  505  * It is appended to the frame to not interfere with the rest of it.
  506  */
  507 struct l_sigframe {
  508         l_int                   sf_sig;
  509         struct l_sigcontext     sf_sc;
  510         struct l_fpstate        sf_fpstate;
  511         l_uint                  sf_extramask[LINUX_NSIG_WORDS-1];
  512         l_handler_t             sf_handler;
  513 } __packed;
  514 
  515 struct l_rt_sigframe {
  516         l_int                   sf_sig;
  517         l_uintptr_t             sf_siginfo;
  518         l_uintptr_t             sf_ucontext;
  519         l_siginfo_t             sf_si;
  520         struct l_ucontext       sf_sc;
  521         l_handler_t             sf_handler;
  522 } __packed;
  523 
  524 extern struct sysentvec elf_linux_sysvec;
  525 
  526 /*
  527  * open/fcntl flags
  528  */
  529 #define LINUX_O_RDONLY          00000000
  530 #define LINUX_O_WRONLY          00000001
  531 #define LINUX_O_RDWR            00000002
  532 #define LINUX_O_ACCMODE         00000003
  533 #define LINUX_O_CREAT           00000100
  534 #define LINUX_O_EXCL            00000200
  535 #define LINUX_O_NOCTTY          00000400
  536 #define LINUX_O_TRUNC           00001000
  537 #define LINUX_O_APPEND          00002000
  538 #define LINUX_O_NONBLOCK        00004000
  539 #define LINUX_O_NDELAY          LINUX_O_NONBLOCK
  540 #define LINUX_O_SYNC            00010000
  541 #define LINUX_FASYNC            00020000
  542 #define LINUX_O_DIRECT          00040000        /* Direct disk access hint */
  543 #define LINUX_O_LARGEFILE       00100000
  544 #define LINUX_O_DIRECTORY       00200000        /* Must be a directory */
  545 #define LINUX_O_NOFOLLOW        00400000        /* Do not follow links */
  546 #define LINUX_O_NOATIME         01000000
  547 #define LINUX_O_CLOEXEC         02000000
  548 
  549 #define LINUX_F_DUPFD           0
  550 #define LINUX_F_GETFD           1
  551 #define LINUX_F_SETFD           2
  552 #define LINUX_F_GETFL           3
  553 #define LINUX_F_SETFL           4
  554 #define LINUX_F_GETLK           5
  555 #define LINUX_F_SETLK           6
  556 #define LINUX_F_SETLKW          7
  557 #define LINUX_F_SETOWN          8
  558 #define LINUX_F_GETOWN          9
  559 
  560 #define LINUX_F_GETLK64         12
  561 #define LINUX_F_SETLK64         13
  562 #define LINUX_F_SETLKW64        14
  563 
  564 #define LINUX_F_RDLCK           0
  565 #define LINUX_F_WRLCK           1
  566 #define LINUX_F_UNLCK           2
  567 
  568 union l_semun {
  569         l_int           val;
  570         l_uintptr_t     buf;
  571         l_uintptr_t     array;
  572         l_uintptr_t     __buf;
  573         l_uintptr_t     __pad;
  574 } __packed;
  575 
  576 /*
  577  * Socket defines
  578  */
  579 #define LINUX_SOL_SOCKET        1
  580 #define LINUX_SOL_IP            0
  581 #define LINUX_SOL_IPX           256
  582 #define LINUX_SOL_AX25          257
  583 #define LINUX_SOL_TCP           6
  584 #define LINUX_SOL_UDP           17
  585 
  586 #define LINUX_SO_DEBUG          1
  587 #define LINUX_SO_REUSEADDR      2
  588 #define LINUX_SO_TYPE           3
  589 #define LINUX_SO_ERROR          4
  590 #define LINUX_SO_DONTROUTE      5
  591 #define LINUX_SO_BROADCAST      6
  592 #define LINUX_SO_SNDBUF         7
  593 #define LINUX_SO_RCVBUF         8
  594 #define LINUX_SO_KEEPALIVE      9
  595 #define LINUX_SO_OOBINLINE      10
  596 #define LINUX_SO_NO_CHECK       11
  597 #define LINUX_SO_PRIORITY       12
  598 #define LINUX_SO_LINGER         13
  599 #define LINUX_SO_PEERCRED       17
  600 #define LINUX_SO_RCVLOWAT       18
  601 #define LINUX_SO_SNDLOWAT       19
  602 #define LINUX_SO_RCVTIMEO       20
  603 #define LINUX_SO_SNDTIMEO       21
  604 #define LINUX_SO_TIMESTAMP      29
  605 #define LINUX_SO_ACCEPTCONN     30
  606 
  607 struct l_sockaddr {
  608         l_ushort        sa_family;
  609         char            sa_data[14];
  610 } __packed;
  611 
  612 struct l_msghdr {
  613         l_uintptr_t     msg_name;
  614         l_int           msg_namelen;
  615         l_uintptr_t     msg_iov;
  616         l_size_t        msg_iovlen;
  617         l_uintptr_t     msg_control;
  618         l_size_t        msg_controllen;
  619         l_uint          msg_flags;
  620 };
  621 
  622 struct l_cmsghdr {
  623         l_size_t        cmsg_len;
  624         l_int           cmsg_level;
  625         l_int           cmsg_type;
  626 };
  627 
  628 struct l_ifmap {
  629         l_ulong         mem_start;
  630         l_ulong         mem_end;
  631         l_ushort        base_addr;
  632         u_char          irq;
  633         u_char          dma;
  634         u_char          port;
  635 } __packed;
  636 
  637 #define LINUX_IFHWADDRLEN       6
  638 #define LINUX_IFNAMSIZ          16
  639 
  640 struct l_ifreq {
  641         union {
  642                 char    ifrn_name[LINUX_IFNAMSIZ];
  643         } ifr_ifrn;
  644 
  645         union {
  646                 struct l_sockaddr       ifru_addr;
  647                 struct l_sockaddr       ifru_dstaddr;
  648                 struct l_sockaddr       ifru_broadaddr;
  649                 struct l_sockaddr       ifru_netmask;
  650                 struct l_sockaddr       ifru_hwaddr;
  651                 l_short         ifru_flags[1];
  652                 l_int           ifru_metric;
  653                 l_int           ifru_mtu;
  654                 struct l_ifmap  ifru_map;
  655                 char            ifru_slave[LINUX_IFNAMSIZ];
  656                 l_uintptr_t     ifru_data;
  657         } ifr_ifru;
  658 } __packed;
  659 
  660 #define ifr_name        ifr_ifrn.ifrn_name      /* Interface name */
  661 #define ifr_hwaddr      ifr_ifru.ifru_hwaddr    /* MAC address */
  662 
  663 struct l_ifconf {
  664         int     ifc_len;
  665         union {
  666                 l_uintptr_t     ifcu_buf;
  667                 l_uintptr_t     ifcu_req;
  668         } ifc_ifcu;
  669 } __packed;
  670 
  671 #define ifc_buf         ifc_ifcu.ifcu_buf
  672 #define ifc_req         ifc_ifcu.ifcu_req
  673 
  674 /*
  675  * poll()
  676  */
  677 #define LINUX_POLLIN            0x0001
  678 #define LINUX_POLLPRI           0x0002
  679 #define LINUX_POLLOUT           0x0004
  680 #define LINUX_POLLERR           0x0008
  681 #define LINUX_POLLHUP           0x0010
  682 #define LINUX_POLLNVAL          0x0020
  683 #define LINUX_POLLRDNORM        0x0040
  684 #define LINUX_POLLRDBAND        0x0080
  685 #define LINUX_POLLWRNORM        0x0100
  686 #define LINUX_POLLWRBAND        0x0200
  687 #define LINUX_POLLMSG           0x0400
  688 
  689 struct l_pollfd {
  690         l_int           fd;
  691         l_short         events;
  692         l_short         revents;
  693 } __packed;
  694 
  695 struct l_user_desc {
  696         l_uint          entry_number;
  697         l_uint          base_addr;
  698         l_uint          limit;
  699         l_uint          seg_32bit:1;
  700         l_uint          contents:2;
  701         l_uint          read_exec_only:1;
  702         l_uint          limit_in_pages:1;
  703         l_uint          seg_not_present:1;
  704         l_uint          useable:1;
  705 };
  706 
  707 #define LINUX_LOWERWORD 0x0000ffff
  708 
  709 /*
  710  * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
  711  * These convert Linux user space descriptor to machine one.
  712  */
  713 #define LINUX_LDT_entry_a(info)                                 \
  714         ((((info)->base_addr & LINUX_LOWERWORD) << 16) |        \
  715         ((info)->limit & LINUX_LOWERWORD))
  716 
  717 #define LINUX_ENTRY_B_READ_EXEC_ONLY    9
  718 #define LINUX_ENTRY_B_CONTENTS          10
  719 #define LINUX_ENTRY_B_SEG_NOT_PRESENT   15
  720 #define LINUX_ENTRY_B_BASE_ADDR         16
  721 #define LINUX_ENTRY_B_USEABLE           20
  722 #define LINUX_ENTRY_B_SEG32BIT          22
  723 #define LINUX_ENTRY_B_LIMIT             23
  724 
  725 #define LINUX_LDT_entry_b(info)                                                 \
  726         (((info)->base_addr & 0xff000000) |                                     \
  727         ((info)->limit & 0xf0000) |                                             \
  728         ((info)->contents << LINUX_ENTRY_B_CONTENTS) |                          \
  729         (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) |     \
  730         (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) |         \
  731         (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) |       \
  732         ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) |                         \
  733         ((info)->useable << LINUX_ENTRY_B_USEABLE) |                            \
  734         ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
  735 
  736 #define LINUX_LDT_empty(info)           \
  737         ((info)->base_addr == 0 &&      \
  738         (info)->limit == 0 &&           \
  739         (info)->contents == 0 &&        \
  740         (info)->seg_not_present == 1 && \
  741         (info)->read_exec_only == 1 &&  \
  742         (info)->seg_32bit == 0 &&       \
  743         (info)->limit_in_pages == 0 &&  \
  744         (info)->useable == 0)
  745 
  746 /*
  747  * Macros for converting segments.
  748  * They do the same as those in arch/i386/kernel/process.c in Linux.
  749  */
  750 #define LINUX_GET_BASE(desc)                            \
  751         ((((desc)->a >> 16) & LINUX_LOWERWORD) |        \
  752         (((desc)->b << 16) & 0x00ff0000) |              \
  753         ((desc)->b & 0xff000000))
  754 
  755 #define LINUX_GET_LIMIT(desc)                   \
  756         (((desc)->a & LINUX_LOWERWORD) |        \
  757         ((desc)->b & 0xf0000))
  758 
  759 #define LINUX_GET_32BIT(desc)           \
  760         (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
  761 #define LINUX_GET_CONTENTS(desc)        \
  762         (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
  763 #define LINUX_GET_WRITABLE(desc)        \
  764         (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
  765 #define LINUX_GET_LIMIT_PAGES(desc)     \
  766         (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
  767 #define LINUX_GET_PRESENT(desc)         \
  768         (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
  769 #define LINUX_GET_USEABLE(desc)         \
  770         (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
  771 
  772 struct iovec;
  773 
  774 struct l_iovec32 {
  775         uint32_t        iov_base;
  776         l_size_t        iov_len;
  777 };
  778 
  779 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt,
  780                             struct iovec **iovp, int error);
  781 
  782 /* robust futexes */
  783 struct linux_robust_list {
  784         l_uintptr_t                     next;
  785 };
  786 
  787 struct linux_robust_list_head {
  788         struct linux_robust_list        list;
  789         l_long                          futex_offset;
  790         l_uintptr_t                     pending_list;
  791 };
  792 
  793 #endif /* !_AMD64_LINUX_H_ */

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