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 /* Set child subreaper status */ 61 #define LINUX_PR_GET_CHILD_SUBREAPER 37 /* Get child subreaper status */ 62 #define LINUX_PR_SET_NO_NEW_PRIVS 38 /* Set no_new_privs attribute */ 63 #define LINUX_PR_GET_NO_NEW_PRIVS 39 /* Get no_new_privs attribute */ 64 #define LINUX_PR_SET_THP_DISABLE 41 /* Disable / enable THP */ 65 #define LINUX_PR_GET_THP_DISABLE 42 /* Get THP state */ 66 #define LINUX_PR_SET_PTRACER 1499557217 67 #define LINUX_PR_SET_VMA 1398164801 68 #define LINUX_PR_SET_VMA_ANON_NAME 0 69 70 #define LINUX_MAX_COMM_LEN 16 /* Maximum length of the process name. */ 71 72 /* For GET/SET DUMPABLE */ 73 #define LINUX_SUID_DUMP_DISABLE 0 /* Don't coredump setuid processes. */ 74 #define LINUX_SUID_DUMP_USER 1 /* Dump as user of process. */ 75 #define LINUX_SUID_DUMP_ROOT 2 /* Dump as root. */ 76 77 #define LINUX_MREMAP_MAYMOVE 1 78 #define LINUX_MREMAP_FIXED 2 79 80 #define LINUX_PATH_MAX 4096 81 82 /* 83 * Non-standard aux entry types used in Linux ELF binaries. 84 */ 85 86 #define LINUX_AT_PLATFORM 15 /* String identifying CPU */ 87 #define LINUX_AT_HWCAP 16 /* CPU capabilities */ 88 #define LINUX_AT_CLKTCK 17 /* frequency at which times() increments */ 89 #define LINUX_AT_SECURE 23 /* secure mode boolean */ 90 #define LINUX_AT_BASE_PLATFORM 24 /* string identifying real platform, may 91 * differ from AT_PLATFORM. 92 */ 93 #define LINUX_AT_RANDOM 25 /* address of random bytes */ 94 #define LINUX_AT_HWCAP2 26 /* CPU capabilities */ 95 #define LINUX_AT_HWCAP3 29 /* CPU capabilities */ 96 #define LINUX_AT_HWCAP4 30 /* CPU capabilities */ 97 #define LINUX_AT_EXECFN 31 /* filename of program */ 98 #define LINUX_AT_SYSINFO 32 /* vsyscall */ 99 #define LINUX_AT_SYSINFO_EHDR 33 /* vdso header */ 100 101 #define LINUX_AT_RANDOM_LEN 16 /* size of random bytes */ 102 103 #ifndef LINUX_AT_MINSIGSTKSZ 104 #define LINUX_AT_MINSIGSTKSZ 51 /* min stack size required by the kernel */ 105 #endif 106 107 /* Linux sets the i387 to extended precision. */ 108 #if defined(__i386__) || defined(__amd64__) 109 #define __LINUX_NPXCW__ 0x37f 110 #endif 111 112 /* Scheduling policies */ 113 #define LINUX_SCHED_OTHER 0 114 #define LINUX_SCHED_FIFO 1 115 #define LINUX_SCHED_RR 2 116 117 #define LINUX_MAX_RT_PRIO 100 118 119 struct l_new_utsname { 120 char sysname[LINUX_MAX_UTSNAME]; 121 char nodename[LINUX_MAX_UTSNAME]; 122 char release[LINUX_MAX_UTSNAME]; 123 char version[LINUX_MAX_UTSNAME]; 124 char machine[LINUX_MAX_UTSNAME]; 125 char domainname[LINUX_MAX_UTSNAME]; 126 }; 127 128 #define LINUX_UTIME_NOW 0x3FFFFFFF 129 #define LINUX_UTIME_OMIT 0x3FFFFFFE 130 131 extern int stclohz; 132 133 #define LINUX_WNOHANG 0x00000001 134 #define LINUX_WUNTRACED 0x00000002 135 #define LINUX_WSTOPPED LINUX_WUNTRACED 136 #define LINUX_WEXITED 0x00000004 137 #define LINUX_WCONTINUED 0x00000008 138 #define LINUX_WNOWAIT 0x01000000 139 140 #define __WNOTHREAD 0x20000000 141 #define __WALL 0x40000000 142 #define __WCLONE 0x80000000 143 144 /* Linux waitid idtype */ 145 #define LINUX_P_ALL 0 146 #define LINUX_P_PID 1 147 #define LINUX_P_PGID 2 148 #define LINUX_P_PIDFD 3 149 150 #define LINUX_RLIMIT_LOCKS 10 151 #define LINUX_RLIMIT_SIGPENDING 11 152 #define LINUX_RLIMIT_MSGQUEUE 12 153 #define LINUX_RLIMIT_NICE 13 154 #define LINUX_RLIMIT_RTPRIO 14 155 #define LINUX_RLIMIT_RTTIME 15 156 157 #define LINUX_RLIM_INFINITY (~0UL) 158 159 /* Linux getrandom flags */ 160 #define LINUX_GRND_NONBLOCK 0x0001 161 #define LINUX_GRND_RANDOM 0x0002 162 163 /* Linux syslog flags */ 164 #define LINUX_SYSLOG_ACTION_READ_ALL 3 165 166 /* Linux seccomp flags */ 167 #define LINUX_SECCOMP_GET_ACTION_AVAIL 2 168 169 /* Linux /proc/self/oom_score_adj */ 170 #define LINUX_OOM_SCORE_ADJ_MIN -1000 171 #define LINUX_OOM_SCORE_ADJ_MAX 1000 172 173 #if defined(__aarch64__) || (defined(__amd64__) && !defined(COMPAT_LINUX32)) 174 int linux_ptrace_status(struct thread *td, int pid, int status); 175 #endif 176 void linux_to_bsd_waitopts(int options, int *bsdopts); 177 struct thread *linux_tdfind(struct thread *, lwpid_t, pid_t); 178 179 struct syscall_info { 180 uint8_t op; 181 uint32_t arch; 182 uint64_t instruction_pointer; 183 uint64_t stack_pointer; 184 union { 185 struct { 186 uint64_t nr; 187 uint64_t args[6]; 188 } entry; 189 struct { 190 int64_t rval; 191 uint8_t is_error; 192 } exit; 193 struct { 194 uint64_t nr; 195 uint64_t args[6]; 196 uint32_t ret_data; 197 } seccomp; 198 }; 199 }; 200 201 /* Linux ioprio set/get syscalls */ 202 #define LINUX_IOPRIO_CLASS_SHIFT 13 203 #define LINUX_IOPRIO_CLASS_MASK 0x07 204 #define LINUX_IOPRIO_PRIO_MASK ((1UL << LINUX_IOPRIO_CLASS_SHIFT) - 1) 205 206 #define LINUX_IOPRIO_PRIO_CLASS(ioprio) \ 207 (((ioprio) >> LINUX_IOPRIO_CLASS_SHIFT) & LINUX_IOPRIO_CLASS_MASK) 208 #define LINUX_IOPRIO_PRIO_DATA(ioprio) ((ioprio) & LINUX_IOPRIO_PRIO_MASK) 209 #define LINUX_IOPRIO_PRIO(class, data) \ 210 ((((class) & LINUX_IOPRIO_CLASS_MASK) << LINUX_IOPRIO_CLASS_SHIFT) | \ 211 ((data) & LINUX_IOPRIO_PRIO_MASK)) 212 213 #define LINUX_IOPRIO_CLASS_NONE 0 214 #define LINUX_IOPRIO_CLASS_RT 1 215 #define LINUX_IOPRIO_CLASS_BE 2 216 #define LINUX_IOPRIO_CLASS_IDLE 3 217 218 #define LINUX_IOPRIO_MIN 0 219 #define LINUX_IOPRIO_MAX 7 220 221 #define LINUX_IOPRIO_WHO_PROCESS 1 222 #define LINUX_IOPRIO_WHO_PGRP 2 223 #define LINUX_IOPRIO_WHO_USER 3 224 225 /* Linux kcmp types from <linux/kcmp.h> */ 226 #define LINUX_KCMP_FILE 0 227 #define LINUX_KCMP_VM 1 228 #define LINUX_KCMP_FILES 2 229 #define LINUX_KCMP_FS 3 230 #define LINUX_KCMP_SIGHAND 4 231 #define LINUX_KCMP_IO 5 232 #define LINUX_KCMP_SYSVSEM 6 233 #define LINUX_KCMP_EPOLL_TFD 7 234 #define LINUX_KCMP_TYPES 8 235 236 /* Linux membarrier commands from <linux/membarrier.h> */ 237 #define LINUX_MEMBARRIER_CMD_QUERY 0 238 #define LINUX_MEMBARRIER_CMD_GLOBAL (1 << 0) 239 #define LINUX_MEMBARRIER_CMD_GLOBAL_EXPEDITED (1 << 1) 240 #define LINUX_MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED (1 << 2) 241 #define LINUX_MEMBARRIER_CMD_PRIVATE_EXPEDITED (1 << 3) 242 #define LINUX_MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED (1 << 4) 243 #define LINUX_MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE (1 << 5) 244 #define LINUX_MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE (1 << 6) 245 #define LINUX_MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ (1 << 7) 246 #define LINUX_MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ (1 << 8) 247 #define LINUX_MEMBARRIER_CMD_GET_REGISTRATIONS (1 << 9) 248 249 /* Linux membarrier flags from <linux/membarrier.h> */ 250 #define LINUX_MEMBARRIER_CMD_FLAG_CPU (1 << 0) 251 252 #endif /* _LINUX_MISC_H_ */ 253