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