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// 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 [12]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 sysctlNodes(mib []_C_int) (nodes []Sysctlnode, err error) { 41 var olen uintptr 42 43 // Get a list of all sysctl nodes below the given MIB by performing 44 // a sysctl for the given MIB with CTL_QUERY appended. 45 mib = append(mib, CTL_QUERY) 46 qnode := Sysctlnode{Flags: SYSCTL_VERS_1} 47 qp := (*byte)(unsafe.Pointer(&qnode)) 48 sz := unsafe.Sizeof(qnode) 49 if err = sysctl(mib, nil, &olen, qp, sz); err != nil { 50 return nil, err 51 } 52 53 // Now that we know the size, get the actual nodes. 54 nodes = make([]Sysctlnode, olen/sz) 55 np := (*byte)(unsafe.Pointer(&nodes[0])) 56 if err = sysctl(mib, np, &olen, qp, sz); err != nil { 57 return nil, err 58 } 59 60 return nodes, nil 61} 62 63func nametomib(name string) (mib []_C_int, err error) { 64 // Split name into components. 65 var parts []string 66 last := 0 67 for i := 0; i < len(name); i++ { 68 if name[i] == '.' { 69 parts = append(parts, name[last:i]) 70 last = i + 1 71 } 72 } 73 parts = append(parts, name[last:]) 74 75 // Discover the nodes and construct the MIB OID. 76 for partno, part := range parts { 77 nodes, err := sysctlNodes(mib) 78 if err != nil { 79 return nil, err 80 } 81 for _, node := range nodes { 82 n := make([]byte, 0) 83 for i := range node.Name { 84 if node.Name[i] != 0 { 85 n = append(n, byte(node.Name[i])) 86 } 87 } 88 if string(n) == part { 89 mib = append(mib, _C_int(node.Num)) 90 break 91 } 92 } 93 if len(mib) != partno+1 { 94 return nil, EINVAL 95 } 96 } 97 98 return mib, nil 99} 100 101func direntIno(buf []byte) (uint64, bool) { 102 return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) 103} 104 105func direntReclen(buf []byte) (uint64, bool) { 106 return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) 107} 108 109func direntNamlen(buf []byte) (uint64, bool) { 110 return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) 111} 112 113//sysnb pipe() (fd1 int, fd2 int, err error) 114func Pipe(p []int) (err error) { 115 if len(p) != 2 { 116 return EINVAL 117 } 118 p[0], p[1], err = pipe() 119 return 120} 121 122//sys Getdents(fd int, buf []byte) (n int, err error) 123func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { 124 n, err = Getdents(fd, buf) 125 if err != nil || basep == nil { 126 return 127 } 128 129 var off int64 130 off, err = Seek(fd, 0, 1 /* SEEK_CUR */) 131 if err != nil { 132 *basep = ^uintptr(0) 133 return 134 } 135 *basep = uintptr(off) 136 if unsafe.Sizeof(*basep) == 8 { 137 return 138 } 139 if off>>32 != 0 { 140 // We can't stuff the offset back into a uintptr, so any 141 // future calls would be suspect. Generate an error. 142 // EIO is allowed by getdirentries. 143 err = EIO 144 } 145 return 146} 147 148//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD 149 150// TODO 151func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 152 return -1, ENOSYS 153} 154 155func setattrlistTimes(path string, times []Timespec, flags int) error { 156 // used on Darwin for UtimesNano 157 return ENOSYS 158} 159 160//sys ioctl(fd int, req uint, arg uintptr) (err error) 161 162//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL 163 164func IoctlGetPtmget(fd int, req uint) (*Ptmget, error) { 165 var value Ptmget 166 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 167 runtime.KeepAlive(value) 168 return &value, err 169} 170 171func Uname(uname *Utsname) error { 172 mib := []_C_int{CTL_KERN, KERN_OSTYPE} 173 n := unsafe.Sizeof(uname.Sysname) 174 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { 175 return err 176 } 177 178 mib = []_C_int{CTL_KERN, KERN_HOSTNAME} 179 n = unsafe.Sizeof(uname.Nodename) 180 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { 181 return err 182 } 183 184 mib = []_C_int{CTL_KERN, KERN_OSRELEASE} 185 n = unsafe.Sizeof(uname.Release) 186 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { 187 return err 188 } 189 190 mib = []_C_int{CTL_KERN, KERN_VERSION} 191 n = unsafe.Sizeof(uname.Version) 192 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { 193 return err 194 } 195 196 // The version might have newlines or tabs in it, convert them to 197 // spaces. 198 for i, b := range uname.Version { 199 if b == '\n' || b == '\t' { 200 if i == len(uname.Version)-1 { 201 uname.Version[i] = 0 202 } else { 203 uname.Version[i] = ' ' 204 } 205 } 206 } 207 208 mib = []_C_int{CTL_HW, HW_MACHINE} 209 n = unsafe.Sizeof(uname.Machine) 210 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { 211 return err 212 } 213 214 return nil 215} 216 217func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 218 if raceenabled { 219 raceReleaseMerge(unsafe.Pointer(&ioSync)) 220 } 221 return sendfile(outfd, infd, offset, count) 222} 223 224func Fstatvfs(fd int, buf *Statvfs_t) (err error) { 225 return Fstatvfs1(fd, buf, ST_WAIT) 226} 227 228func Statvfs(path string, buf *Statvfs_t) (err error) { 229 return Statvfs1(path, buf, ST_WAIT) 230} 231 232/* 233 * Exposed directly 234 */ 235//sys Access(path string, mode uint32) (err error) 236//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) 237//sys Chdir(path string) (err error) 238//sys Chflags(path string, flags int) (err error) 239//sys Chmod(path string, mode uint32) (err error) 240//sys Chown(path string, uid int, gid int) (err error) 241//sys Chroot(path string) (err error) 242//sys Close(fd int) (err error) 243//sys Dup(fd int) (nfd int, err error) 244//sys Dup2(from int, to int) (err error) 245//sys Dup3(from int, to int, flags int) (err error) 246//sys Exit(code int) 247//sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 248//sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 249//sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error) 250//sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 251//sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 252//sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 253//sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error) 254//sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 255//sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 256//sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 257//sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error) 258//sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 259//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) 260//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE 261//sys Fchdir(fd int) (err error) 262//sys Fchflags(fd int, flags int) (err error) 263//sys Fchmod(fd int, mode uint32) (err error) 264//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 265//sys Fchown(fd int, uid int, gid int) (err error) 266//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) 267//sys Flock(fd int, how int) (err error) 268//sys Fpathconf(fd int, name int) (val int, err error) 269//sys Fstat(fd int, stat *Stat_t) (err error) 270//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) 271//sys Fstatvfs1(fd int, buf *Statvfs_t, flags int) (err error) = SYS_FSTATVFS1 272//sys Fsync(fd int) (err error) 273//sys Ftruncate(fd int, length int64) (err error) 274//sysnb Getegid() (egid int) 275//sysnb Geteuid() (uid int) 276//sysnb Getgid() (gid int) 277//sysnb Getpgid(pid int) (pgid int, err error) 278//sysnb Getpgrp() (pgrp int) 279//sysnb Getpid() (pid int) 280//sysnb Getppid() (ppid int) 281//sys Getpriority(which int, who int) (prio int, err error) 282//sysnb Getrlimit(which int, lim *Rlimit) (err error) 283//sysnb Getrusage(who int, rusage *Rusage) (err error) 284//sysnb Getsid(pid int) (sid int, err error) 285//sysnb Gettimeofday(tv *Timeval) (err error) 286//sysnb Getuid() (uid int) 287//sys Issetugid() (tainted bool) 288//sys Kill(pid int, signum syscall.Signal) (err error) 289//sys Kqueue() (fd int, err error) 290//sys Lchown(path string, uid int, gid int) (err error) 291//sys Link(path string, link string) (err error) 292//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) 293//sys Listen(s int, backlog int) (err error) 294//sys Lstat(path string, stat *Stat_t) (err error) 295//sys Mkdir(path string, mode uint32) (err error) 296//sys Mkdirat(dirfd int, path string, mode uint32) (err error) 297//sys Mkfifo(path string, mode uint32) (err error) 298//sys Mkfifoat(dirfd int, path string, mode uint32) (err error) 299//sys Mknod(path string, mode uint32, dev int) (err error) 300//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) 301//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) 302//sys Open(path string, mode int, perm uint32) (fd int, err error) 303//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) 304//sys Pathconf(path string, name int) (val int, err error) 305//sys Pread(fd int, p []byte, offset int64) (n int, err error) 306//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) 307//sys read(fd int, p []byte) (n int, err error) 308//sys Readlink(path string, buf []byte) (n int, err error) 309//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) 310//sys Rename(from string, to string) (err error) 311//sys Renameat(fromfd int, from string, tofd int, to string) (err error) 312//sys Revoke(path string) (err error) 313//sys Rmdir(path string) (err error) 314//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK 315//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) 316//sysnb Setegid(egid int) (err error) 317//sysnb Seteuid(euid int) (err error) 318//sysnb Setgid(gid int) (err error) 319//sysnb Setpgid(pid int, pgid int) (err error) 320//sys Setpriority(which int, who int, prio int) (err error) 321//sysnb Setregid(rgid int, egid int) (err error) 322//sysnb Setreuid(ruid int, euid int) (err error) 323//sysnb Setrlimit(which int, lim *Rlimit) (err error) 324//sysnb Setsid() (pid int, err error) 325//sysnb Settimeofday(tp *Timeval) (err error) 326//sysnb Setuid(uid int) (err error) 327//sys Stat(path string, stat *Stat_t) (err error) 328//sys Statvfs1(path string, buf *Statvfs_t, flags int) (err error) = SYS_STATVFS1 329//sys Symlink(path string, link string) (err error) 330//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) 331//sys Sync() (err error) 332//sys Truncate(path string, length int64) (err error) 333//sys Umask(newmask int) (oldmask int) 334//sys Unlink(path string) (err error) 335//sys Unlinkat(dirfd int, path string, flags int) (err error) 336//sys Unmount(path string, flags int) (err error) 337//sys write(fd int, p []byte) (n int, err error) 338//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) 339//sys munmap(addr uintptr, length uintptr) (err error) 340//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ 341//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE 342//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) 343 344/* 345 * Unimplemented 346 */ 347// ____semctl13 348// __clone 349// __fhopen40 350// __fhstat40 351// __fhstatvfs140 352// __fstat30 353// __getcwd 354// __getfh30 355// __getlogin 356// __lstat30 357// __mount50 358// __msgctl13 359// __msync13 360// __ntp_gettime30 361// __posix_chown 362// __posix_fchown 363// __posix_lchown 364// __posix_rename 365// __setlogin 366// __shmctl13 367// __sigaction_sigtramp 368// __sigaltstack14 369// __sigpending14 370// __sigprocmask14 371// __sigsuspend14 372// __sigtimedwait 373// __stat30 374// __syscall 375// __vfork14 376// _ksem_close 377// _ksem_destroy 378// _ksem_getvalue 379// _ksem_init 380// _ksem_open 381// _ksem_post 382// _ksem_trywait 383// _ksem_unlink 384// _ksem_wait 385// _lwp_continue 386// _lwp_create 387// _lwp_ctl 388// _lwp_detach 389// _lwp_exit 390// _lwp_getname 391// _lwp_getprivate 392// _lwp_kill 393// _lwp_park 394// _lwp_self 395// _lwp_setname 396// _lwp_setprivate 397// _lwp_suspend 398// _lwp_unpark 399// _lwp_unpark_all 400// _lwp_wait 401// _lwp_wakeup 402// _pset_bind 403// _sched_getaffinity 404// _sched_getparam 405// _sched_setaffinity 406// _sched_setparam 407// acct 408// aio_cancel 409// aio_error 410// aio_fsync 411// aio_read 412// aio_return 413// aio_suspend 414// aio_write 415// break 416// clock_getres 417// clock_gettime 418// clock_settime 419// compat_09_ogetdomainname 420// compat_09_osetdomainname 421// compat_09_ouname 422// compat_10_omsgsys 423// compat_10_osemsys 424// compat_10_oshmsys 425// compat_12_fstat12 426// compat_12_getdirentries 427// compat_12_lstat12 428// compat_12_msync 429// compat_12_oreboot 430// compat_12_oswapon 431// compat_12_stat12 432// compat_13_sigaction13 433// compat_13_sigaltstack13 434// compat_13_sigpending13 435// compat_13_sigprocmask13 436// compat_13_sigreturn13 437// compat_13_sigsuspend13 438// compat_14___semctl 439// compat_14_msgctl 440// compat_14_shmctl 441// compat_16___sigaction14 442// compat_16___sigreturn14 443// compat_20_fhstatfs 444// compat_20_fstatfs 445// compat_20_getfsstat 446// compat_20_statfs 447// compat_30___fhstat30 448// compat_30___fstat13 449// compat_30___lstat13 450// compat_30___stat13 451// compat_30_fhopen 452// compat_30_fhstat 453// compat_30_fhstatvfs1 454// compat_30_getdents 455// compat_30_getfh 456// compat_30_ntp_gettime 457// compat_30_socket 458// compat_40_mount 459// compat_43_fstat43 460// compat_43_lstat43 461// compat_43_oaccept 462// compat_43_ocreat 463// compat_43_oftruncate 464// compat_43_ogetdirentries 465// compat_43_ogetdtablesize 466// compat_43_ogethostid 467// compat_43_ogethostname 468// compat_43_ogetkerninfo 469// compat_43_ogetpagesize 470// compat_43_ogetpeername 471// compat_43_ogetrlimit 472// compat_43_ogetsockname 473// compat_43_okillpg 474// compat_43_olseek 475// compat_43_ommap 476// compat_43_oquota 477// compat_43_orecv 478// compat_43_orecvfrom 479// compat_43_orecvmsg 480// compat_43_osend 481// compat_43_osendmsg 482// compat_43_osethostid 483// compat_43_osethostname 484// compat_43_osetrlimit 485// compat_43_osigblock 486// compat_43_osigsetmask 487// compat_43_osigstack 488// compat_43_osigvec 489// compat_43_otruncate 490// compat_43_owait 491// compat_43_stat43 492// execve 493// extattr_delete_fd 494// extattr_delete_file 495// extattr_delete_link 496// extattr_get_fd 497// extattr_get_file 498// extattr_get_link 499// extattr_list_fd 500// extattr_list_file 501// extattr_list_link 502// extattr_set_fd 503// extattr_set_file 504// extattr_set_link 505// extattrctl 506// fchroot 507// fdatasync 508// fgetxattr 509// fktrace 510// flistxattr 511// fork 512// fremovexattr 513// fsetxattr 514// fstatvfs1 515// fsync_range 516// getcontext 517// getitimer 518// getvfsstat 519// getxattr 520// ktrace 521// lchflags 522// lchmod 523// lfs_bmapv 524// lfs_markv 525// lfs_segclean 526// lfs_segwait 527// lgetxattr 528// lio_listio 529// listxattr 530// llistxattr 531// lremovexattr 532// lseek 533// lsetxattr 534// lutimes 535// madvise 536// mincore 537// minherit 538// modctl 539// mq_close 540// mq_getattr 541// mq_notify 542// mq_open 543// mq_receive 544// mq_send 545// mq_setattr 546// mq_timedreceive 547// mq_timedsend 548// mq_unlink 549// mremap 550// msgget 551// msgrcv 552// msgsnd 553// nfssvc 554// ntp_adjtime 555// pmc_control 556// pmc_get_info 557// pollts 558// preadv 559// profil 560// pselect 561// pset_assign 562// pset_create 563// pset_destroy 564// ptrace 565// pwritev 566// quotactl 567// rasctl 568// readv 569// reboot 570// removexattr 571// sa_enable 572// sa_preempt 573// sa_register 574// sa_setconcurrency 575// sa_stacks 576// sa_yield 577// sbrk 578// sched_yield 579// semconfig 580// semget 581// semop 582// setcontext 583// setitimer 584// setxattr 585// shmat 586// shmdt 587// shmget 588// sstk 589// statvfs1 590// swapctl 591// sysarch 592// syscall 593// timer_create 594// timer_delete 595// timer_getoverrun 596// timer_gettime 597// timer_settime 598// undelete 599// utrace 600// uuidgen 601// vadvise 602// vfork 603// writev 604