1 /* $NetBSD: linux_misc.h,v 1.29 2023/08/18 19:41:19 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Eric Haszlakiewicz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LINUX_MISC_H 33 #define _LINUX_MISC_H 34 35 /* 36 * Options passed to the Linux wait4() and waitid() system calls. 37 */ 38 #define LINUX_WNOHANG 0x00000001 39 #define LINUX_WUNTRACED 0x00000002 40 #define LINUX_WEXITED 0x00000004 41 #define LINUX_WCONTINUED 0x00000008 42 #define LINUX_WNOWAIT 0x01000000 43 #define LINUX_WNOTHREAD 0x20000000 44 #define LINUX_WALL 0x40000000 45 #define LINUX_WCLONE 0x80000000 46 47 #define LINUX_WAIT4_KNOWNFLAGS (LINUX_WNOHANG | \ 48 LINUX_WUNTRACED | \ 49 LINUX_WCONTINUED | \ 50 LINUX_WNOTHREAD | \ 51 LINUX_WALL | \ 52 LINUX_WCLONE) 53 54 #define LINUX_WAITID_KNOWNFLAGS (LINUX_WNOHANG | \ 55 LINUX_WEXITED | \ 56 LINUX_WUNTRACED | \ 57 LINUX_WCONTINUED | \ 58 LINUX_WNOWAIT) 59 60 /* 61 * Passed as the first argument of waitid(2). 62 */ 63 #define LINUX_P_ALL 0 64 #define LINUX_P_PID 1 65 #define LINUX_P_PGID 2 66 #define LINUX_P_PIDFD 3 67 68 /* This looks very unportable to me, but this is how Linux defines it. */ 69 struct linux_sysinfo { 70 long uptime; 71 unsigned long loads[3]; 72 #define LINUX_SYSINFO_LOADS_SCALE 65536 73 unsigned long totalram; 74 unsigned long freeram; 75 unsigned long sharedram; 76 unsigned long bufferram; 77 unsigned long totalswap; 78 unsigned long freeswap; 79 unsigned short procs; 80 unsigned long totalbig; 81 unsigned long freebig; 82 unsigned int mem_unit; 83 char _f[20-2*sizeof(long)-sizeof(int)]; 84 }; 85 86 #define LINUX_RLIMIT_CPU 0 87 #define LINUX_RLIMIT_FSIZE 1 88 #define LINUX_RLIMIT_DATA 2 89 #define LINUX_RLIMIT_STACK 3 90 #define LINUX_RLIMIT_CORE 4 91 #define LINUX_RLIMIT_RSS 5 92 #define LINUX_RLIMIT_NPROC 6 93 #define LINUX_RLIMIT_NOFILE 7 94 #define LINUX_RLIMIT_MEMLOCK 8 95 #define LINUX_RLIMIT_AS 9 96 #define LINUX_RLIMIT_LOCKS 10 97 #ifdef __mips__ /* XXX only mips32. On mips64, it's ~0ul */ 98 #define LINUX_RLIM_INFINITY 0x7fffffffUL 99 #define LINUX32_RLIM_INFINITY 0x7fffffffU 100 #else 101 #define LINUX_RLIM_INFINITY ~0ul 102 #define LINUX32_RLIM_INFINITY ~0u 103 #endif 104 105 106 /* When we don't know what to do, let it believe it is local */ 107 #define LINUX_DEFAULT_SUPER_MAGIC LINUX_EXT2_SUPER_MAGIC 108 109 #define LINUX_ADFS_SUPER_MAGIC 0x0000adf5 110 #define LINUX_AFFS_SUPER_MAGIC 0x0000adff 111 #define LINUX_CODA_SUPER_MAGIC 0x73757245 112 #define LINUX_COH_SUPER_MAGIC (LINUX_SYSV_MAGIC_BASE + 4) 113 #define LINUX_DEVFS_SUPER_MAGIC 0x00001373 114 #define LINUX_EFS_SUPER_MAGIC 0x00414A53 115 #define LINUX_EXT2_SUPER_MAGIC 0x0000EF53 116 #define LINUX_HPFS_SUPER_MAGIC 0xf995e849 117 #define LINUX_ISOFS_SUPER_MAGIC 0x00009660 118 #define LINUX_MINIX2_SUPER_MAGIC 0x00002468 119 #define LINUX_MINIX2_SUPER_MAGIC2 0x00002478 120 #define LINUX_MINIX_SUPER_MAGIC 0x0000137F 121 #define LINUX_MINIX_SUPER_MAGIC2 0x0000138F 122 #define LINUX_MSDOS_SUPER_MAGIC 0x00004d44 123 #define LINUX_NCP_SUPER_MAGIC 0x0000564c 124 #define LINUX_NFS_SUPER_MAGIC 0x00006969 125 #define LINUX_OPENPROM_SUPER_MAGIC 0x00009fa1 126 #define LINUX_PROC_SUPER_MAGIC 0x00009fa0 127 #define LINUX_QNX4_SUPER_MAGIC 0x0000002f 128 #define LINUX_REISERFS_SUPER_MAGIC 0x52654973 129 #define LINUX_SMB_SUPER_MAGIC 0x0000517B 130 #define LINUX_SYSV2_SUPER_MAGIC (LINUX_SYSV_MAGIC_BASE + 3) 131 #define LINUX_SYSV4_SUPER_MAGIC (LINUX_SYSV_MAGIC_BASE + 2) 132 #define LINUX_SYSV_MAGIC_BASE 0x012FF7B3 133 #define LINUX_TMPFS_SUPER_MAGIC 0x01021994 134 #define LINUX_USBDEVICE_SUPER_MAGIC 0x00009fa2 135 #define LINUX_DEVPTS_SUPER_MAGIC 0x00001cd1 136 #define LINUX_XENIX_SUPER_MAGIC (LINUX_SYSV_MAGIC_BASE + 1) 137 138 struct linux_mnttypes { 139 const char *mty_bsd; 140 int mty_linux; 141 }; 142 extern const struct linux_mnttypes linux_fstypes[]; 143 extern const int linux_fstypes_cnt; 144 145 /* Personality types. */ 146 #define LINUX_PER_QUERY 0xffffffff 147 #define LINUX_PER_LINUX 0x00 148 #define LINUX_PER_LINUX32 0x08 149 #define LINUX_PER_MASK 0xff 150 151 /* Personality flags. */ 152 #define LINUX_PER_ADDR_NO_RANDOMIZE 0x00040000 153 154 /* 155 * Convert POSIX_FADV_* constants from Linux to NetBSD 156 * (it's f(x)=x everywhere except S390) 157 */ 158 #define linux_to_bsd_posix_fadv(advice) (advice) 159 160 struct linux_epoll_event { 161 uint32_t events; 162 uint64_t data; 163 } 164 #if defined(__amd64__) 165 /* Only for x86_64. See include/uapi/linux/eventpoll.h. */ 166 __packed 167 #endif 168 ; 169 170 #ifdef _KERNEL 171 __BEGIN_DECLS 172 int bsd_to_linux_wstat(int); 173 int linux_select1(struct lwp *, register_t *, int, fd_set *, fd_set *, 174 fd_set *, struct linux_timeval *); 175 int linux_do_sys_utimensat(struct lwp *, int, const char *, 176 struct timespec *, int, register_t *); 177 int linux_do_futex(int *, int, int, struct timespec *, int *, int, int, 178 register_t *); 179 __END_DECLS 180 #endif /* !_KERNEL */ 181 182 #endif /* !_LINUX_MISC_H */ 183