1// Copyright 2009,2010 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5// OpenBSD system calls. 6// This file is compiled as ordinary Go code, 7// but it is also input to mksyscall, 8// which parses the //sys lines and generates system call stubs. 9// Note that sometimes we use a lowercase //sys name and wrap 10// it in our own nicer implementation, either here or in 11// syscall_bsd.go or syscall_unix.go. 12 13package unix 14 15import ( 16 "sort" 17 "syscall" 18 "unsafe" 19) 20 21// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. 22type SockaddrDatalink struct { 23 Len uint8 24 Family uint8 25 Index uint16 26 Type uint8 27 Nlen uint8 28 Alen uint8 29 Slen uint8 30 Data [24]int8 31 raw RawSockaddrDatalink 32} 33 34func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { 35 return nil, EAFNOSUPPORT 36} 37 38func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) 39 40func nametomib(name string) (mib []_C_int, err error) { 41 i := sort.Search(len(sysctlMib), func(i int) bool { 42 return sysctlMib[i].ctlname >= name 43 }) 44 if i < len(sysctlMib) && sysctlMib[i].ctlname == name { 45 return sysctlMib[i].ctloid, nil 46 } 47 return nil, EINVAL 48} 49 50func direntIno(buf []byte) (uint64, bool) { 51 return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) 52} 53 54func direntReclen(buf []byte) (uint64, bool) { 55 return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) 56} 57 58func direntNamlen(buf []byte) (uint64, bool) { 59 return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) 60} 61 62func SysctlUvmexp(name string) (*Uvmexp, error) { 63 mib, err := sysctlmib(name) 64 if err != nil { 65 return nil, err 66 } 67 68 n := uintptr(SizeofUvmexp) 69 var u Uvmexp 70 if err := sysctl(mib, (*byte)(unsafe.Pointer(&u)), &n, nil, 0); err != nil { 71 return nil, err 72 } 73 if n != SizeofUvmexp { 74 return nil, EIO 75 } 76 return &u, nil 77} 78 79func Pipe(p []int) (err error) { 80 return Pipe2(p, 0) 81} 82 83//sysnb pipe2(p *[2]_C_int, flags int) (err error) 84func Pipe2(p []int, flags int) error { 85 if len(p) != 2 { 86 return EINVAL 87 } 88 var pp [2]_C_int 89 err := pipe2(&pp, flags) 90 p[0] = int(pp[0]) 91 p[1] = int(pp[1]) 92 return err 93} 94 95//sys Getdents(fd int, buf []byte) (n int, err error) 96func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { 97 n, err = Getdents(fd, buf) 98 if err != nil || basep == nil { 99 return 100 } 101 102 var off int64 103 off, err = Seek(fd, 0, 1 /* SEEK_CUR */) 104 if err != nil { 105 *basep = ^uintptr(0) 106 return 107 } 108 *basep = uintptr(off) 109 if unsafe.Sizeof(*basep) == 8 { 110 return 111 } 112 if off>>32 != 0 { 113 // We can't stuff the offset back into a uintptr, so any 114 // future calls would be suspect. Generate an error. 115 // EIO was allowed by getdirentries. 116 err = EIO 117 } 118 return 119} 120 121//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD 122 123func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 124 if raceenabled { 125 raceReleaseMerge(unsafe.Pointer(&ioSync)) 126 } 127 return sendfile(outfd, infd, offset, count) 128} 129 130// TODO 131func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 132 return -1, ENOSYS 133} 134 135func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { 136 var _p0 unsafe.Pointer 137 var bufsize uintptr 138 if len(buf) > 0 { 139 _p0 = unsafe.Pointer(&buf[0]) 140 bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) 141 } 142 r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags)) 143 n = int(r0) 144 if e1 != 0 { 145 err = e1 146 } 147 return 148} 149 150func setattrlistTimes(path string, times []Timespec, flags int) error { 151 // used on Darwin for UtimesNano 152 return ENOSYS 153} 154 155//sys ioctl(fd int, req uint, arg uintptr) (err error) 156 157//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL 158 159//sys ppoll(fds *PollFd, nfds int, timeout *Timespec, sigmask *Sigset_t) (n int, err error) 160 161func Ppoll(fds []PollFd, timeout *Timespec, sigmask *Sigset_t) (n int, err error) { 162 if len(fds) == 0 { 163 return ppoll(nil, 0, timeout, sigmask) 164 } 165 return ppoll(&fds[0], len(fds), timeout, sigmask) 166} 167 168func Uname(uname *Utsname) error { 169 mib := []_C_int{CTL_KERN, KERN_OSTYPE} 170 n := unsafe.Sizeof(uname.Sysname) 171 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { 172 return err 173 } 174 175 mib = []_C_int{CTL_KERN, KERN_HOSTNAME} 176 n = unsafe.Sizeof(uname.Nodename) 177 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { 178 return err 179 } 180 181 mib = []_C_int{CTL_KERN, KERN_OSRELEASE} 182 n = unsafe.Sizeof(uname.Release) 183 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { 184 return err 185 } 186 187 mib = []_C_int{CTL_KERN, KERN_VERSION} 188 n = unsafe.Sizeof(uname.Version) 189 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { 190 return err 191 } 192 193 // The version might have newlines or tabs in it, convert them to 194 // spaces. 195 for i, b := range uname.Version { 196 if b == '\n' || b == '\t' { 197 if i == len(uname.Version)-1 { 198 uname.Version[i] = 0 199 } else { 200 uname.Version[i] = ' ' 201 } 202 } 203 } 204 205 mib = []_C_int{CTL_HW, HW_MACHINE} 206 n = unsafe.Sizeof(uname.Machine) 207 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { 208 return err 209 } 210 211 return nil 212} 213 214/* 215 * Exposed directly 216 */ 217//sys Access(path string, mode uint32) (err error) 218//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) 219//sys Chdir(path string) (err error) 220//sys Chflags(path string, flags int) (err error) 221//sys Chmod(path string, mode uint32) (err error) 222//sys Chown(path string, uid int, gid int) (err error) 223//sys Chroot(path string) (err error) 224//sys Close(fd int) (err error) 225//sys Dup(fd int) (nfd int, err error) 226//sys Dup2(from int, to int) (err error) 227//sys Dup3(from int, to int, flags int) (err error) 228//sys Exit(code int) 229//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) 230//sys Fchdir(fd int) (err error) 231//sys Fchflags(fd int, flags int) (err error) 232//sys Fchmod(fd int, mode uint32) (err error) 233//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 234//sys Fchown(fd int, uid int, gid int) (err error) 235//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) 236//sys Flock(fd int, how int) (err error) 237//sys Fpathconf(fd int, name int) (val int, err error) 238//sys Fstat(fd int, stat *Stat_t) (err error) 239//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) 240//sys Fstatfs(fd int, stat *Statfs_t) (err error) 241//sys Fsync(fd int) (err error) 242//sys Ftruncate(fd int, length int64) (err error) 243//sysnb Getegid() (egid int) 244//sysnb Geteuid() (uid int) 245//sysnb Getgid() (gid int) 246//sysnb Getpgid(pid int) (pgid int, err error) 247//sysnb Getpgrp() (pgrp int) 248//sysnb Getpid() (pid int) 249//sysnb Getppid() (ppid int) 250//sys Getpriority(which int, who int) (prio int, err error) 251//sysnb Getrlimit(which int, lim *Rlimit) (err error) 252//sysnb Getrtable() (rtable int, err error) 253//sysnb Getrusage(who int, rusage *Rusage) (err error) 254//sysnb Getsid(pid int) (sid int, err error) 255//sysnb Gettimeofday(tv *Timeval) (err error) 256//sysnb Getuid() (uid int) 257//sys Issetugid() (tainted bool) 258//sys Kill(pid int, signum syscall.Signal) (err error) 259//sys Kqueue() (fd int, err error) 260//sys Lchown(path string, uid int, gid int) (err error) 261//sys Link(path string, link string) (err error) 262//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) 263//sys Listen(s int, backlog int) (err error) 264//sys Lstat(path string, stat *Stat_t) (err error) 265//sys Mkdir(path string, mode uint32) (err error) 266//sys Mkdirat(dirfd int, path string, mode uint32) (err error) 267//sys Mkfifo(path string, mode uint32) (err error) 268//sys Mkfifoat(dirfd int, path string, mode uint32) (err error) 269//sys Mknod(path string, mode uint32, dev int) (err error) 270//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) 271//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) 272//sys Open(path string, mode int, perm uint32) (fd int, err error) 273//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) 274//sys Pathconf(path string, name int) (val int, err error) 275//sys Pread(fd int, p []byte, offset int64) (n int, err error) 276//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) 277//sys read(fd int, p []byte) (n int, err error) 278//sys Readlink(path string, buf []byte) (n int, err error) 279//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) 280//sys Rename(from string, to string) (err error) 281//sys Renameat(fromfd int, from string, tofd int, to string) (err error) 282//sys Revoke(path string) (err error) 283//sys Rmdir(path string) (err error) 284//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK 285//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) 286//sysnb Setegid(egid int) (err error) 287//sysnb Seteuid(euid int) (err error) 288//sysnb Setgid(gid int) (err error) 289//sys Setlogin(name string) (err error) 290//sysnb Setpgid(pid int, pgid int) (err error) 291//sys Setpriority(which int, who int, prio int) (err error) 292//sysnb Setregid(rgid int, egid int) (err error) 293//sysnb Setreuid(ruid int, euid int) (err error) 294//sysnb Setresgid(rgid int, egid int, sgid int) (err error) 295//sysnb Setresuid(ruid int, euid int, suid int) (err error) 296//sysnb Setrlimit(which int, lim *Rlimit) (err error) 297//sysnb Setrtable(rtable int) (err error) 298//sysnb Setsid() (pid int, err error) 299//sysnb Settimeofday(tp *Timeval) (err error) 300//sysnb Setuid(uid int) (err error) 301//sys Stat(path string, stat *Stat_t) (err error) 302//sys Statfs(path string, stat *Statfs_t) (err error) 303//sys Symlink(path string, link string) (err error) 304//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) 305//sys Sync() (err error) 306//sys Truncate(path string, length int64) (err error) 307//sys Umask(newmask int) (oldmask int) 308//sys Unlink(path string) (err error) 309//sys Unlinkat(dirfd int, path string, flags int) (err error) 310//sys Unmount(path string, flags int) (err error) 311//sys write(fd int, p []byte) (n int, err error) 312//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) 313//sys munmap(addr uintptr, length uintptr) (err error) 314//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ 315//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE 316//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) 317 318/* 319 * Unimplemented 320 */ 321// __getcwd 322// __semctl 323// __syscall 324// __sysctl 325// adjfreq 326// break 327// clock_getres 328// clock_gettime 329// clock_settime 330// closefrom 331// execve 332// fhopen 333// fhstat 334// fhstatfs 335// fork 336// futimens 337// getfh 338// getgid 339// getitimer 340// getlogin 341// getresgid 342// getresuid 343// getthrid 344// ktrace 345// lfs_bmapv 346// lfs_markv 347// lfs_segclean 348// lfs_segwait 349// mincore 350// minherit 351// mount 352// mquery 353// msgctl 354// msgget 355// msgrcv 356// msgsnd 357// nfssvc 358// nnpfspioctl 359// preadv 360// profil 361// pwritev 362// quotactl 363// readv 364// reboot 365// renameat 366// rfork 367// sched_yield 368// semget 369// semop 370// setgroups 371// setitimer 372// setsockopt 373// shmat 374// shmctl 375// shmdt 376// shmget 377// sigaction 378// sigaltstack 379// sigpending 380// sigprocmask 381// sigreturn 382// sigsuspend 383// sysarch 384// syscall 385// threxit 386// thrsigdivert 387// thrsleep 388// thrwakeup 389// vfork 390// writev 391