FreeBSD/Linux Kernel Cross Reference
sys/compat/linux/linux_misc.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2006 Roman Divacky
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _LINUX_MISC_H_
    #define _LINUX_MISC_H_
    
    #include <sys/sysctl.h>
    
    #define LINUX_MAX_PID_NS_LEVEL  32
    
                                    /* bits per mask */
    #define LINUX_NFDBITS           sizeof(l_fd_mask) * 8
    
    /*
     * Miscellaneous
     */
    #define LINUX_NAME_MAX          255
    #define LINUX_MAX_UTSNAME       65
    
    #define LINUX_CTL_MAXNAME       10
    
    /* defines for prctl */
    #define LINUX_PR_SET_PDEATHSIG  1       /* Second arg is a signal. */
    #define LINUX_PR_GET_PDEATHSIG  2       /*
                                             * Second arg is a ptr to return the
                                             * signal.
                                             */
    #define LINUX_PR_GET_DUMPABLE   3
    #define LINUX_PR_SET_DUMPABLE   4
    #define LINUX_PR_GET_KEEPCAPS   7       /* Get drop capabilities on setuid */
    #define LINUX_PR_SET_KEEPCAPS   8       /* Set drop capabilities on setuid */
    #define LINUX_PR_SET_NAME       15      /* Set process name. */
    #define LINUX_PR_GET_NAME       16      /* Get process name. */
    #define LINUX_PR_GET_SECCOMP    21
    #define LINUX_PR_SET_SECCOMP    22
    #define LINUX_PR_CAPBSET_READ   23
    #define LINUX_PR_SET_NO_NEW_PRIVS       38
    #define LINUX_PR_SET_PTRACER    1499557217
    
    #define LINUX_MAX_COMM_LEN      16      /* Maximum length of the process name. */
    
    /* For GET/SET DUMPABLE */
    #define LINUX_SUID_DUMP_DISABLE 0       /* Don't coredump setuid processes. */
    #define LINUX_SUID_DUMP_USER    1       /* Dump as user of process. */
    #define LINUX_SUID_DUMP_ROOT    2       /* Dump as root. */
    
    #define LINUX_MREMAP_MAYMOVE    1
    #define LINUX_MREMAP_FIXED      2
    
    #define LINUX_PATH_MAX          4096
    
    /*
     * Non-standard aux entry types used in Linux ELF binaries.
     */
    
    #define LINUX_AT_PLATFORM       15      /* String identifying CPU */
    #define LINUX_AT_HWCAP          16      /* CPU capabilities */
    #define LINUX_AT_CLKTCK         17      /* frequency at which times() increments */
    #define LINUX_AT_SECURE         23      /* secure mode boolean */
    #define LINUX_AT_BASE_PLATFORM  24      /* string identifying real platform, may
                                             * differ from AT_PLATFORM.
                                             */
    #define LINUX_AT_RANDOM         25      /* address of random bytes */
    #define LINUX_AT_HWCAP2         26      /* CPU capabilities, second part */
    #define LINUX_AT_EXECFN         31      /* filename of program */
    #define LINUX_AT_SYSINFO        32      /* vsyscall */
    #define LINUX_AT_SYSINFO_EHDR   33      /* vdso header */
    
    #define LINUX_AT_RANDOM_LEN     16      /* size of random bytes */
    
    #ifndef LINUX_AT_MINSIGSTKSZ
    #define LINUX_AT_MINSIGSTKSZ    51      /* min stack size required by the kernel */
   #endif
   
   /* Linux sets the i387 to extended precision. */
   #if defined(__i386__) || defined(__amd64__)
   #define __LINUX_NPXCW__         0x37f
   #endif
   
   /* Scheduling policies */
   #define LINUX_SCHED_OTHER       0
   #define LINUX_SCHED_FIFO        1
   #define LINUX_SCHED_RR          2
   
   #define LINUX_MAX_RT_PRIO       100
   
   struct l_new_utsname {
           char    sysname[LINUX_MAX_UTSNAME];
           char    nodename[LINUX_MAX_UTSNAME];
           char    release[LINUX_MAX_UTSNAME];
           char    version[LINUX_MAX_UTSNAME];
           char    machine[LINUX_MAX_UTSNAME];
           char    domainname[LINUX_MAX_UTSNAME];
   };
   
   #define LINUX_UTIME_NOW                 0x3FFFFFFF
   #define LINUX_UTIME_OMIT                0x3FFFFFFE
   
   extern int stclohz;
   
   #define LINUX_WNOHANG           0x00000001
   #define LINUX_WUNTRACED         0x00000002
   #define LINUX_WSTOPPED          LINUX_WUNTRACED
   #define LINUX_WEXITED           0x00000004
   #define LINUX_WCONTINUED        0x00000008
   #define LINUX_WNOWAIT           0x01000000
   
   #define __WNOTHREAD             0x20000000
   #define __WALL                  0x40000000
   #define __WCLONE                0x80000000
   
   /* Linux waitid idtype  */
   #define LINUX_P_ALL             0
   #define LINUX_P_PID             1
   #define LINUX_P_PGID            2
   #define LINUX_P_PIDFD           3
   
   #define LINUX_RLIMIT_LOCKS      10
   #define LINUX_RLIMIT_SIGPENDING 11
   #define LINUX_RLIMIT_MSGQUEUE   12
   #define LINUX_RLIMIT_NICE       13
   #define LINUX_RLIMIT_RTPRIO     14
   #define LINUX_RLIMIT_RTTIME     15
   
   #define LINUX_RLIM_INFINITY     (~0UL)
   
   /* Linux getrandom flags */
   #define LINUX_GRND_NONBLOCK     0x0001
   #define LINUX_GRND_RANDOM       0x0002
   
   /* Linux syslog flags */
   #define LINUX_SYSLOG_ACTION_READ_ALL    3
   
   /* Linux seccomp flags */
   #define LINUX_SECCOMP_GET_ACTION_AVAIL  2
   
   /* Linux /proc/self/oom_score_adj */
   #define LINUX_OOM_SCORE_ADJ_MIN -1000
   #define LINUX_OOM_SCORE_ADJ_MAX 1000
   
   #if defined(__aarch64__) || (defined(__amd64__) && !defined(COMPAT_LINUX32))
   int linux_ptrace_status(struct thread *td, int pid, int status);
   #endif
   void linux_to_bsd_waitopts(int options, int *bsdopts);
   struct thread   *linux_tdfind(struct thread *, lwpid_t, pid_t);
   
   struct syscall_info {
           uint8_t op;
           uint32_t arch;
           uint64_t instruction_pointer;
           uint64_t stack_pointer;
           union {
                   struct {
                           uint64_t nr;
                           uint64_t args[6];
                   } entry;
                   struct {
                           int64_t rval;
                           uint8_t is_error;
                   } exit;
                   struct {
                           uint64_t nr;
                           uint64_t args[6];
                           uint32_t ret_data;
                   } seccomp;
           };
   };
   
   #endif  /* _LINUX_MISC_H_ */

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