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// NetBSD 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 "runtime" 17 "syscall" 18 "unsafe" 19) 20 21//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL 22 23// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. 24type SockaddrDatalink struct { 25 Len uint8 26 Family uint8 27 Index uint16 28 Type uint8 29 Nlen uint8 30 Alen uint8 31 Slen uint8 32 Data [12]int8 33 raw RawSockaddrDatalink 34} 35 36func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) 37 38func sysctlNodes(mib []_C_int) (nodes []Sysctlnode, err error) { 39 var olen uintptr 40 41 // Get a list of all sysctl nodes below the given MIB by performing 42 // a sysctl for the given MIB with CTL_QUERY appended. 43 mib = append(mib, CTL_QUERY) 44 qnode := Sysctlnode{Flags: SYSCTL_VERS_1} 45 qp := (*byte)(unsafe.Pointer(&qnode)) 46 sz := unsafe.Sizeof(qnode) 47 if err = sysctl(mib, nil, &olen, qp, sz); err != nil { 48 return nil, err 49 } 50 51 // Now that we know the size, get the actual nodes. 52 nodes = make([]Sysctlnode, olen/sz) 53 np := (*byte)(unsafe.Pointer(&nodes[0])) 54 if err = sysctl(mib, np, &olen, qp, sz); err != nil { 55 return nil, err 56 } 57 58 return nodes, nil 59} 60 61func nametomib(name string) (mib []_C_int, err error) { 62 // Split name into components. 63 var parts []string 64 last := 0 65 for i := 0; i < len(name); i++ { 66 if name[i] == '.' { 67 parts = append(parts, name[last:i]) 68 last = i + 1 69 } 70 } 71 parts = append(parts, name[last:]) 72 73 // Discover the nodes and construct the MIB OID. 74 for partno, part := range parts { 75 nodes, err := sysctlNodes(mib) 76 if err != nil { 77 return nil, err 78 } 79 for _, node := range nodes { 80 n := make([]byte, 0) 81 for i := range node.Name { 82 if node.Name[i] != 0 { 83 n = append(n, byte(node.Name[i])) 84 } 85 } 86 if string(n) == part { 87 mib = append(mib, _C_int(node.Num)) 88 break 89 } 90 } 91 if len(mib) != partno+1 { 92 return nil, EINVAL 93 } 94 } 95 96 return mib, nil 97} 98 99func direntIno(buf []byte) (uint64, bool) { 100 return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) 101} 102 103func direntReclen(buf []byte) (uint64, bool) { 104 return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) 105} 106 107func direntNamlen(buf []byte) (uint64, bool) { 108 return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) 109} 110 111func SysctlClockinfo(name string) (*Clockinfo, error) { 112 mib, err := sysctlmib(name) 113 if err != nil { 114 return nil, err 115 } 116 117 n := uintptr(SizeofClockinfo) 118 var ci Clockinfo 119 if err := sysctl(mib, (*byte)(unsafe.Pointer(&ci)), &n, nil, 0); err != nil { 120 return nil, err 121 } 122 if n != SizeofClockinfo { 123 return nil, EIO 124 } 125 return &ci, nil 126} 127 128//sysnb pipe() (fd1 int, fd2 int, err error) 129func Pipe(p []int) (err error) { 130 if len(p) != 2 { 131 return EINVAL 132 } 133 p[0], p[1], err = pipe() 134 return 135} 136 137//sys Getdents(fd int, buf []byte) (n int, err error) 138func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { 139 n, err = Getdents(fd, buf) 140 if err != nil || basep == nil { 141 return 142 } 143 144 var off int64 145 off, err = Seek(fd, 0, 1 /* SEEK_CUR */) 146 if err != nil { 147 *basep = ^uintptr(0) 148 return 149 } 150 *basep = uintptr(off) 151 if unsafe.Sizeof(*basep) == 8 { 152 return 153 } 154 if off>>32 != 0 { 155 // We can't stuff the offset back into a uintptr, so any 156 // future calls would be suspect. Generate an error. 157 // EIO is allowed by getdirentries. 158 err = EIO 159 } 160 return 161} 162 163const ImplementsGetwd = true 164 165//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD 166 167func Getwd() (string, error) { 168 var buf [PathMax]byte 169 _, err := Getcwd(buf[0:]) 170 if err != nil { 171 return "", err 172 } 173 n := clen(buf[:]) 174 if n < 1 { 175 return "", EINVAL 176 } 177 return string(buf[:n]), nil 178} 179 180// TODO 181func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 182 return -1, ENOSYS 183} 184 185func setattrlistTimes(path string, times []Timespec, flags int) error { 186 // used on Darwin for UtimesNano 187 return ENOSYS 188} 189 190//sys ioctl(fd int, req uint, arg uintptr) (err error) 191 192func IoctlGetPtmget(fd int, req uint) (*Ptmget, error) { 193 var value Ptmget 194 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 195 runtime.KeepAlive(value) 196 return &value, err 197} 198 199func Uname(uname *Utsname) error { 200 mib := []_C_int{CTL_KERN, KERN_OSTYPE} 201 n := unsafe.Sizeof(uname.Sysname) 202 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { 203 return err 204 } 205 206 mib = []_C_int{CTL_KERN, KERN_HOSTNAME} 207 n = unsafe.Sizeof(uname.Nodename) 208 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { 209 return err 210 } 211 212 mib = []_C_int{CTL_KERN, KERN_OSRELEASE} 213 n = unsafe.Sizeof(uname.Release) 214 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { 215 return err 216 } 217 218 mib = []_C_int{CTL_KERN, KERN_VERSION} 219 n = unsafe.Sizeof(uname.Version) 220 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { 221 return err 222 } 223 224 // The version might have newlines or tabs in it, convert them to 225 // spaces. 226 for i, b := range uname.Version { 227 if b == '\n' || b == '\t' { 228 if i == len(uname.Version)-1 { 229 uname.Version[i] = 0 230 } else { 231 uname.Version[i] = ' ' 232 } 233 } 234 } 235 236 mib = []_C_int{CTL_HW, HW_MACHINE} 237 n = unsafe.Sizeof(uname.Machine) 238 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { 239 return err 240 } 241 242 return nil 243} 244 245func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 246 if raceenabled { 247 raceReleaseMerge(unsafe.Pointer(&ioSync)) 248 } 249 return sendfile(outfd, infd, offset, count) 250} 251 252/* 253 * Exposed directly 254 */ 255//sys Access(path string, mode uint32) (err error) 256//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) 257//sys Chdir(path string) (err error) 258//sys Chflags(path string, flags int) (err error) 259//sys Chmod(path string, mode uint32) (err error) 260//sys Chown(path string, uid int, gid int) (err error) 261//sys Chroot(path string) (err error) 262//sys Close(fd int) (err error) 263//sys Dup(fd int) (nfd int, err error) 264//sys Dup2(from int, to int) (err error) 265//sys Exit(code int) 266//sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 267//sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 268//sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error) 269//sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 270//sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 271//sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 272//sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error) 273//sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 274//sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 275//sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 276//sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error) 277//sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 278//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) 279//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE 280//sys Fchdir(fd int) (err error) 281//sys Fchflags(fd int, flags int) (err error) 282//sys Fchmod(fd int, mode uint32) (err error) 283//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 284//sys Fchown(fd int, uid int, gid int) (err error) 285//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) 286//sys Flock(fd int, how int) (err error) 287//sys Fpathconf(fd int, name int) (val int, err error) 288//sys Fstat(fd int, stat *Stat_t) (err error) 289//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) 290//sys Fsync(fd int) (err error) 291//sys Ftruncate(fd int, length int64) (err error) 292//sysnb Getegid() (egid int) 293//sysnb Geteuid() (uid int) 294//sysnb Getgid() (gid int) 295//sysnb Getpgid(pid int) (pgid int, err error) 296//sysnb Getpgrp() (pgrp int) 297//sysnb Getpid() (pid int) 298//sysnb Getppid() (ppid int) 299//sys Getpriority(which int, who int) (prio int, err error) 300//sysnb Getrlimit(which int, lim *Rlimit) (err error) 301//sysnb Getrusage(who int, rusage *Rusage) (err error) 302//sysnb Getsid(pid int) (sid int, err error) 303//sysnb Gettimeofday(tv *Timeval) (err error) 304//sysnb Getuid() (uid int) 305//sys Issetugid() (tainted bool) 306//sys Kill(pid int, signum syscall.Signal) (err error) 307//sys Kqueue() (fd int, err error) 308//sys Lchown(path string, uid int, gid int) (err error) 309//sys Link(path string, link string) (err error) 310//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) 311//sys Listen(s int, backlog int) (err error) 312//sys Lstat(path string, stat *Stat_t) (err error) 313//sys Mkdir(path string, mode uint32) (err error) 314//sys Mkdirat(dirfd int, path string, mode uint32) (err error) 315//sys Mkfifo(path string, mode uint32) (err error) 316//sys Mkfifoat(dirfd int, path string, mode uint32) (err error) 317//sys Mknod(path string, mode uint32, dev int) (err error) 318//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) 319//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) 320//sys Open(path string, mode int, perm uint32) (fd int, err error) 321//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) 322//sys Pathconf(path string, name int) (val int, err error) 323//sys Pread(fd int, p []byte, offset int64) (n int, err error) 324//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) 325//sys read(fd int, p []byte) (n int, err error) 326//sys Readlink(path string, buf []byte) (n int, err error) 327//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) 328//sys Rename(from string, to string) (err error) 329//sys Renameat(fromfd int, from string, tofd int, to string) (err error) 330//sys Revoke(path string) (err error) 331//sys Rmdir(path string) (err error) 332//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK 333//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) 334//sysnb Setegid(egid int) (err error) 335//sysnb Seteuid(euid int) (err error) 336//sysnb Setgid(gid int) (err error) 337//sysnb Setpgid(pid int, pgid int) (err error) 338//sys Setpriority(which int, who int, prio int) (err error) 339//sysnb Setregid(rgid int, egid int) (err error) 340//sysnb Setreuid(ruid int, euid int) (err error) 341//sysnb Setrlimit(which int, lim *Rlimit) (err error) 342//sysnb Setsid() (pid int, err error) 343//sysnb Settimeofday(tp *Timeval) (err error) 344//sysnb Setuid(uid int) (err error) 345//sys Stat(path string, stat *Stat_t) (err error) 346//sys Symlink(path string, link string) (err error) 347//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) 348//sys Sync() (err error) 349//sys Truncate(path string, length int64) (err error) 350//sys Umask(newmask int) (oldmask int) 351//sys Unlink(path string) (err error) 352//sys Unlinkat(dirfd int, path string, flags int) (err error) 353//sys Unmount(path string, flags int) (err error) 354//sys write(fd int, p []byte) (n int, err error) 355//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) 356//sys munmap(addr uintptr, length uintptr) (err error) 357//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ 358//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE 359//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) 360 361/* 362 * Unimplemented 363 */ 364// ____semctl13 365// __clone 366// __fhopen40 367// __fhstat40 368// __fhstatvfs140 369// __fstat30 370// __getcwd 371// __getfh30 372// __getlogin 373// __lstat30 374// __mount50 375// __msgctl13 376// __msync13 377// __ntp_gettime30 378// __posix_chown 379// __posix_fchown 380// __posix_lchown 381// __posix_rename 382// __setlogin 383// __shmctl13 384// __sigaction_sigtramp 385// __sigaltstack14 386// __sigpending14 387// __sigprocmask14 388// __sigsuspend14 389// __sigtimedwait 390// __stat30 391// __syscall 392// __vfork14 393// _ksem_close 394// _ksem_destroy 395// _ksem_getvalue 396// _ksem_init 397// _ksem_open 398// _ksem_post 399// _ksem_trywait 400// _ksem_unlink 401// _ksem_wait 402// _lwp_continue 403// _lwp_create 404// _lwp_ctl 405// _lwp_detach 406// _lwp_exit 407// _lwp_getname 408// _lwp_getprivate 409// _lwp_kill 410// _lwp_park 411// _lwp_self 412// _lwp_setname 413// _lwp_setprivate 414// _lwp_suspend 415// _lwp_unpark 416// _lwp_unpark_all 417// _lwp_wait 418// _lwp_wakeup 419// _pset_bind 420// _sched_getaffinity 421// _sched_getparam 422// _sched_setaffinity 423// _sched_setparam 424// acct 425// aio_cancel 426// aio_error 427// aio_fsync 428// aio_read 429// aio_return 430// aio_suspend 431// aio_write 432// break 433// clock_getres 434// clock_gettime 435// clock_settime 436// compat_09_ogetdomainname 437// compat_09_osetdomainname 438// compat_09_ouname 439// compat_10_omsgsys 440// compat_10_osemsys 441// compat_10_oshmsys 442// compat_12_fstat12 443// compat_12_getdirentries 444// compat_12_lstat12 445// compat_12_msync 446// compat_12_oreboot 447// compat_12_oswapon 448// compat_12_stat12 449// compat_13_sigaction13 450// compat_13_sigaltstack13 451// compat_13_sigpending13 452// compat_13_sigprocmask13 453// compat_13_sigreturn13 454// compat_13_sigsuspend13 455// compat_14___semctl 456// compat_14_msgctl 457// compat_14_shmctl 458// compat_16___sigaction14 459// compat_16___sigreturn14 460// compat_20_fhstatfs 461// compat_20_fstatfs 462// compat_20_getfsstat 463// compat_20_statfs 464// compat_30___fhstat30 465// compat_30___fstat13 466// compat_30___lstat13 467// compat_30___stat13 468// compat_30_fhopen 469// compat_30_fhstat 470// compat_30_fhstatvfs1 471// compat_30_getdents 472// compat_30_getfh 473// compat_30_ntp_gettime 474// compat_30_socket 475// compat_40_mount 476// compat_43_fstat43 477// compat_43_lstat43 478// compat_43_oaccept 479// compat_43_ocreat 480// compat_43_oftruncate 481// compat_43_ogetdirentries 482// compat_43_ogetdtablesize 483// compat_43_ogethostid 484// compat_43_ogethostname 485// compat_43_ogetkerninfo 486// compat_43_ogetpagesize 487// compat_43_ogetpeername 488// compat_43_ogetrlimit 489// compat_43_ogetsockname 490// compat_43_okillpg 491// compat_43_olseek 492// compat_43_ommap 493// compat_43_oquota 494// compat_43_orecv 495// compat_43_orecvfrom 496// compat_43_orecvmsg 497// compat_43_osend 498// compat_43_osendmsg 499// compat_43_osethostid 500// compat_43_osethostname 501// compat_43_osetrlimit 502// compat_43_osigblock 503// compat_43_osigsetmask 504// compat_43_osigstack 505// compat_43_osigvec 506// compat_43_otruncate 507// compat_43_owait 508// compat_43_stat43 509// execve 510// extattr_delete_fd 511// extattr_delete_file 512// extattr_delete_link 513// extattr_get_fd 514// extattr_get_file 515// extattr_get_link 516// extattr_list_fd 517// extattr_list_file 518// extattr_list_link 519// extattr_set_fd 520// extattr_set_file 521// extattr_set_link 522// extattrctl 523// fchroot 524// fdatasync 525// fgetxattr 526// fktrace 527// flistxattr 528// fork 529// fremovexattr 530// fsetxattr 531// fstatvfs1 532// fsync_range 533// getcontext 534// getitimer 535// getvfsstat 536// getxattr 537// ktrace 538// lchflags 539// lchmod 540// lfs_bmapv 541// lfs_markv 542// lfs_segclean 543// lfs_segwait 544// lgetxattr 545// lio_listio 546// listxattr 547// llistxattr 548// lremovexattr 549// lseek 550// lsetxattr 551// lutimes 552// madvise 553// mincore 554// minherit 555// modctl 556// mq_close 557// mq_getattr 558// mq_notify 559// mq_open 560// mq_receive 561// mq_send 562// mq_setattr 563// mq_timedreceive 564// mq_timedsend 565// mq_unlink 566// mremap 567// msgget 568// msgrcv 569// msgsnd 570// nfssvc 571// ntp_adjtime 572// pmc_control 573// pmc_get_info 574// pollts 575// preadv 576// profil 577// pselect 578// pset_assign 579// pset_create 580// pset_destroy 581// ptrace 582// pwritev 583// quotactl 584// rasctl 585// readv 586// reboot 587// removexattr 588// sa_enable 589// sa_preempt 590// sa_register 591// sa_setconcurrency 592// sa_stacks 593// sa_yield 594// sbrk 595// sched_yield 596// semconfig 597// semget 598// semop 599// setcontext 600// setitimer 601// setxattr 602// shmat 603// shmdt 604// shmget 605// sstk 606// statvfs1 607// swapctl 608// sysarch 609// syscall 610// timer_create 611// timer_delete 612// timer_getoverrun 613// timer_gettime 614// timer_settime 615// undelete 616// utrace 617// uuidgen 618// vadvise 619// vfork 620// writev 621