1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2006 Roman Divacky 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 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _LINUX_MISC_H_ 30 #define _LINUX_MISC_H_ 31 32 #define LINUX_MAX_PID_NS_LEVEL 32 33 34 /* bits per mask */ 35 #define LINUX_NFDBITS sizeof(l_fd_mask) * 8 36 37 /* 38 * Miscellaneous 39 */ 40 #define LINUX_NAME_MAX 255 41 #define LINUX_MAX_UTSNAME 65 42 43 #define LINUX_CTL_MAXNAME 10 44 45 /* defines for prctl */ 46 #define LINUX_PR_SET_PDEATHSIG 1 /* Second arg is a signal. */ 47 #define LINUX_PR_GET_PDEATHSIG 2 /* 48 * Second arg is a ptr to return the 49 * signal. 50 */ 51 #define LINUX_PR_GET_DUMPABLE 3 52 #define LINUX_PR_SET_DUMPABLE 4 53 #define LINUX_PR_GET_KEEPCAPS 7 /* Get drop capabilities on setuid */ 54 #define LINUX_PR_SET_KEEPCAPS 8 /* Set drop capabilities on setuid */ 55 #define LINUX_PR_SET_NAME 15 /* Set process name. */ 56 #define LINUX_PR_GET_NAME 16 /* Get process name. */ 57 #define LINUX_PR_GET_SECCOMP 21 58 #define LINUX_PR_SET_SECCOMP 22 59 #define LINUX_PR_CAPBSET_READ 23 60 #define LINUX_PR_SET_CHILD_SUBREAPER 36 61 #define LINUX_PR_SET_NO_NEW_PRIVS 38 62 #define LINUX_PR_SET_PTRACER 1499557217 63 64 #define LINUX_MAX_COMM_LEN 16 /* Maximum length of the process name. */ 65 66 /* For GET/SET DUMPABLE */ 67 #define LINUX_SUID_DUMP_DISABLE 0 /* Don't coredump setuid processes. */ 68 #define LINUX_SUID_DUMP_USER 1 /* Dump as user of process. */ 69 #define LINUX_SUID_DUMP_ROOT 2 /* Dump as root. */ 70 71 #define LINUX_MREMAP_MAYMOVE 1 72 #define LINUX_MREMAP_FIXED 2 73 74 #define LINUX_PATH_MAX 4096 75 76 /* 77 * Non-standard aux entry types used in Linux ELF binaries. 78 */ 79 80 #define LINUX_AT_PLATFORM 15 /* String identifying CPU */ 81 #define LINUX_AT_HWCAP 16 /* CPU capabilities */ 82 #define LINUX_AT_CLKTCK 17 /* frequency at which times() increments */ 83 #define LINUX_AT_SECURE 23 /* secure mode boolean */ 84 #define LINUX_AT_BASE_PLATFORM 24 /* string identifying real platform, may 85 * differ from AT_PLATFORM. 86 */ 87 #define LINUX_AT_RANDOM 25 /* address of random bytes */ 88 #define LINUX_AT_HWCAP2 26 /* CPU capabilities, second part */ 89 #define LINUX_AT_EXECFN 31 /* filename of program */ 90 #define LINUX_AT_SYSINFO 32 /* vsyscall */ 91 #define LINUX_AT_SYSINFO_EHDR 33 /* vdso header */ 92 93 #define LINUX_AT_RANDOM_LEN 16 /* size of random bytes */ 94 95 #ifndef LINUX_AT_MINSIGSTKSZ 96 #define LINUX_AT_MINSIGSTKSZ 51 /* min stack size required by the kernel */ 97 #endif 98 99 /* Linux sets the i387 to extended precision. */ 100 #if defined(__i386__) || defined(__amd64__) 101 #define __LINUX_NPXCW__ 0x37f 102 #endif 103 104 /* Scheduling policies */ 105 #define LINUX_SCHED_OTHER 0 106 #define LINUX_SCHED_FIFO 1 107 #define LINUX_SCHED_RR 2 108 109 #define LINUX_MAX_RT_PRIO 100 110 111 struct l_new_utsname { 112 char sysname[LINUX_MAX_UTSNAME]; 113 char nodename[LINUX_MAX_UTSNAME]; 114 char release[LINUX_MAX_UTSNAME]; 115 char version[LINUX_MAX_UTSNAME]; 116 char machine[LINUX_MAX_UTSNAME]; 117 char domainname[LINUX_MAX_UTSNAME]; 118 }; 119 120 #define LINUX_UTIME_NOW 0x3FFFFFFF 121 #define LINUX_UTIME_OMIT 0x3FFFFFFE 122 123 extern int stclohz; 124 125 #define LINUX_WNOHANG 0x00000001 126 #define LINUX_WUNTRACED 0x00000002 127 #define LINUX_WSTOPPED LINUX_WUNTRACED 128 #define LINUX_WEXITED 0x00000004 129 #define LINUX_WCONTINUED 0x00000008 130 #define LINUX_WNOWAIT 0x01000000 131 132 #define __WNOTHREAD 0x20000000 133 #define __WALL 0x40000000 134 #define __WCLONE 0x80000000 135 136 /* Linux waitid idtype */ 137 #define LINUX_P_ALL 0 138 #define LINUX_P_PID 1 139 #define LINUX_P_PGID 2 140 #define LINUX_P_PIDFD 3 141 142 #define LINUX_RLIMIT_LOCKS 10 143 #define LINUX_RLIMIT_SIGPENDING 11 144 #define LINUX_RLIMIT_MSGQUEUE 12 145 #define LINUX_RLIMIT_NICE 13 146 #define LINUX_RLIMIT_RTPRIO 14 147 #define LINUX_RLIMIT_RTTIME 15 148 149 #define LINUX_RLIM_INFINITY (~0UL) 150 151 /* Linux getrandom flags */ 152 #define LINUX_GRND_NONBLOCK 0x0001 153 #define LINUX_GRND_RANDOM 0x0002 154 155 /* Linux syslog flags */ 156 #define LINUX_SYSLOG_ACTION_READ_ALL 3 157 158 /* Linux seccomp flags */ 159 #define LINUX_SECCOMP_GET_ACTION_AVAIL 2 160 161 /* Linux /proc/self/oom_score_adj */ 162 #define LINUX_OOM_SCORE_ADJ_MIN -1000 163 #define LINUX_OOM_SCORE_ADJ_MAX 1000 164 165 #if defined(__aarch64__) || (defined(__amd64__) && !defined(COMPAT_LINUX32)) 166 int linux_ptrace_status(struct thread *td, int pid, int status); 167 #endif 168 void linux_to_bsd_waitopts(int options, int *bsdopts); 169 struct thread *linux_tdfind(struct thread *, lwpid_t, pid_t); 170 171 struct syscall_info { 172 uint8_t op; 173 uint32_t arch; 174 uint64_t instruction_pointer; 175 uint64_t stack_pointer; 176 union { 177 struct { 178 uint64_t nr; 179 uint64_t args[6]; 180 } entry; 181 struct { 182 int64_t rval; 183 uint8_t is_error; 184 } exit; 185 struct { 186 uint64_t nr; 187 uint64_t args[6]; 188 uint32_t ret_data; 189 } seccomp; 190 }; 191 }; 192 193 /* Linux ioprio set/get syscalls */ 194 #define LINUX_IOPRIO_CLASS_SHIFT 13 195 #define LINUX_IOPRIO_CLASS_MASK 0x07 196 #define LINUX_IOPRIO_PRIO_MASK ((1UL << LINUX_IOPRIO_CLASS_SHIFT) - 1) 197 198 #define LINUX_IOPRIO_PRIO_CLASS(ioprio) \ 199 (((ioprio) >> LINUX_IOPRIO_CLASS_SHIFT) & LINUX_IOPRIO_CLASS_MASK) 200 #define LINUX_IOPRIO_PRIO_DATA(ioprio) ((ioprio) & LINUX_IOPRIO_PRIO_MASK) 201 #define LINUX_IOPRIO_PRIO(class, data) \ 202 ((((class) & LINUX_IOPRIO_CLASS_MASK) << LINUX_IOPRIO_CLASS_SHIFT) | \ 203 ((data) & LINUX_IOPRIO_PRIO_MASK)) 204 205 #define LINUX_IOPRIO_CLASS_NONE 0 206 #define LINUX_IOPRIO_CLASS_RT 1 207 #define LINUX_IOPRIO_CLASS_BE 2 208 #define LINUX_IOPRIO_CLASS_IDLE 3 209 210 #define LINUX_IOPRIO_MIN 0 211 #define LINUX_IOPRIO_MAX 7 212 213 #define LINUX_IOPRIO_WHO_PROCESS 1 214 #define LINUX_IOPRIO_WHO_PGRP 2 215 #define LINUX_IOPRIO_WHO_USER 3 216 217 #endif /* _LINUX_MISC_H_ */ 218