// Copyright 2009,2010 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // NetBSD system calls. // This file is compiled as ordinary Go code, // but it is also input to mksyscall, // which parses the //sys lines and generates system call stubs. // Note that sometimes we use a lowercase //sys name and wrap // it in our own nicer implementation, either here or in // syscall_bsd.go or syscall_unix.go. package unix import ( "syscall" "unsafe" ) // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. type SockaddrDatalink struct { Len uint8 Family uint8 Index uint16 Type uint8 Nlen uint8 Alen uint8 Slen uint8 Data [12]int8 raw RawSockaddrDatalink } func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { return nil, EAFNOSUPPORT } func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) func sysctlNodes(mib []_C_int) (nodes []Sysctlnode, err error) { var olen uintptr // Get a list of all sysctl nodes below the given MIB by performing // a sysctl for the given MIB with CTL_QUERY appended. mib = append(mib, CTL_QUERY) qnode := Sysctlnode{Flags: SYSCTL_VERS_1} qp := (*byte)(unsafe.Pointer(&qnode)) sz := unsafe.Sizeof(qnode) if err = sysctl(mib, nil, &olen, qp, sz); err != nil { return nil, err } // Now that we know the size, get the actual nodes. nodes = make([]Sysctlnode, olen/sz) np := (*byte)(unsafe.Pointer(&nodes[0])) if err = sysctl(mib, np, &olen, qp, sz); err != nil { return nil, err } return nodes, nil } func nametomib(name string) (mib []_C_int, err error) { // Split name into components. var parts []string last := 0 for i := 0; i < len(name); i++ { if name[i] == '.' { parts = append(parts, name[last:i]) last = i + 1 } } parts = append(parts, name[last:]) // Discover the nodes and construct the MIB OID. for partno, part := range parts { nodes, err := sysctlNodes(mib) if err != nil { return nil, err } for _, node := range nodes { n := make([]byte, 0) for i := range node.Name { if node.Name[i] != 0 { n = append(n, byte(node.Name[i])) } } if string(n) == part { mib = append(mib, _C_int(node.Num)) break } } if len(mib) != partno+1 { return nil, EINVAL } } return mib, nil } func direntIno(buf []byte) (uint64, bool) { return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) } func direntReclen(buf []byte) (uint64, bool) { return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) } func direntNamlen(buf []byte) (uint64, bool) { return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) } func SysctlUvmexp(name string) (*Uvmexp, error) { mib, err := sysctlmib(name) if err != nil { return nil, err } n := uintptr(SizeofUvmexp) var u Uvmexp if err := sysctl(mib, (*byte)(unsafe.Pointer(&u)), &n, nil, 0); err != nil { return nil, err } return &u, nil } func Pipe(p []int) (err error) { return Pipe2(p, 0) } //sysnb pipe2(p *[2]_C_int, flags int) (err error) func Pipe2(p []int, flags int) error { if len(p) != 2 { return EINVAL } var pp [2]_C_int err := pipe2(&pp, flags) if err == nil { p[0] = int(pp[0]) p[1] = int(pp[1]) } return err } //sys Getdents(fd int, buf []byte) (n int, err error) func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { n, err = Getdents(fd, buf) if err != nil || basep == nil { return } var off int64 off, err = Seek(fd, 0, 1 /* SEEK_CUR */) if err != nil { *basep = ^uintptr(0) return } *basep = uintptr(off) if unsafe.Sizeof(*basep) == 8 { return } if off>>32 != 0 { // We can't stuff the offset back into a uintptr, so any // future calls would be suspect. Generate an error. // EIO is allowed by getdirentries. err = EIO } return } //sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD // TODO func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { return -1, ENOSYS } //sys ioctl(fd int, req uint, arg uintptr) (err error) //sys ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL //sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL func IoctlGetPtmget(fd int, req uint) (*Ptmget, error) { var value Ptmget err := ioctlPtr(fd, req, unsafe.Pointer(&value)) return &value, err } func Uname(uname *Utsname) error { mib := []_C_int{CTL_KERN, KERN_OSTYPE} n := unsafe.Sizeof(uname.Sysname) if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { return err } mib = []_C_int{CTL_KERN, KERN_HOSTNAME} n = unsafe.Sizeof(uname.Nodename) if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { return err } mib = []_C_int{CTL_KERN, KERN_OSRELEASE} n = unsafe.Sizeof(uname.Release) if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { return err } mib = []_C_int{CTL_KERN, KERN_VERSION} n = unsafe.Sizeof(uname.Version) if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { return err } // The version might have newlines or tabs in it, convert them to // spaces. for i, b := range uname.Version { if b == '\n' || b == '\t' { if i == len(uname.Version)-1 { uname.Version[i] = 0 } else { uname.Version[i] = ' ' } } } mib = []_C_int{CTL_HW, HW_MACHINE} n = unsafe.Sizeof(uname.Machine) if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { return err } return nil } func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { if raceenabled { raceReleaseMerge(unsafe.Pointer(&ioSync)) } return sendfile(outfd, infd, offset, count) } func Fstatvfs(fd int, buf *Statvfs_t) (err error) { return Fstatvfs1(fd, buf, ST_WAIT) } func Statvfs(path string, buf *Statvfs_t) (err error) { return Statvfs1(path, buf, ST_WAIT) } /* * Exposed directly */ //sys Access(path string, mode uint32) (err error) //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) //sys Chdir(path string) (err error) //sys Chflags(path string, flags int) (err error) //sys Chmod(path string, mode uint32) (err error) //sys Chown(path string, uid int, gid int) (err error) //sys Chroot(path string) (err error) //sys ClockGettime(clockid int32, time *Timespec) (err error) //sys Close(fd int) (err error) //sys Dup(fd int) (nfd int, err error) //sys Dup2(from int, to int) (err error) //sys Dup3(from int, to int, flags int) (err error) //sys Exit(code int) //sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) //sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) //sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error) //sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error) //sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) //sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) //sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error) //sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) //sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) //sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) //sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error) //sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE //sys Fchdir(fd int) (err error) //sys Fchflags(fd int, flags int) (err error) //sys Fchmod(fd int, mode uint32) (err error) //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) //sys Fchown(fd int, uid int, gid int) (err error) //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) //sys Flock(fd int, how int) (err error) //sys Fpathconf(fd int, name int) (val int, err error) //sys Fstat(fd int, stat *Stat_t) (err error) //sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) //sys Fstatvfs1(fd int, buf *Statvfs_t, flags int) (err error) = SYS_FSTATVFS1 //sys Fsync(fd int) (err error) //sys Ftruncate(fd int, length int64) (err error) //sysnb Getegid() (egid int) //sysnb Geteuid() (uid int) //sysnb Getgid() (gid int) //sysnb Getpgid(pid int) (pgid int, err error) //sysnb Getpgrp() (pgrp int) //sysnb Getpid() (pid int) //sysnb Getppid() (ppid int) //sys Getpriority(which int, who int) (prio int, err error) //sysnb Getrlimit(which int, lim *Rlimit) (err error) //sysnb Getrusage(who int, rusage *Rusage) (err error) //sysnb Getsid(pid int) (sid int, err error) //sysnb Gettimeofday(tv *Timeval) (err error) //sysnb Getuid() (uid int) //sys Issetugid() (tainted bool) //sys Kill(pid int, signum syscall.Signal) (err error) //sys Kqueue() (fd int, err error) //sys Lchown(path string, uid int, gid int) (err error) //sys Link(path string, link string) (err error) //sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) //sys Listen(s int, backlog int) (err error) //sys Lstat(path string, stat *Stat_t) (err error) //sys Mkdir(path string, mode uint32) (err error) //sys Mkdirat(dirfd int, path string, mode uint32) (err error) //sys Mkfifo(path string, mode uint32) (err error) //sys Mkfifoat(dirfd int, path string, mode uint32) (err error) //sys Mknod(path string, mode uint32, dev int) (err error) //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) //sys Nanosleep(time *Timespec, leftover *Timespec) (err error) //sys Open(path string, mode int, perm uint32) (fd int, err error) //sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) //sys Pathconf(path string, name int) (val int, err error) //sys pread(fd int, p []byte, offset int64) (n int, err error) //sys pwrite(fd int, p []byte, offset int64) (n int, err error) //sys read(fd int, p []byte) (n int, err error) //sys Readlink(path string, buf []byte) (n int, err error) //sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) //sys Rename(from string, to string) (err error) //sys Renameat(fromfd int, from string, tofd int, to string) (err error) //sys Revoke(path string) (err error) //sys Rmdir(path string) (err error) //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) //sysnb Setegid(egid int) (err error) //sysnb Seteuid(euid int) (err error) //sysnb Setgid(gid int) (err error) //sysnb Setpgid(pid int, pgid int) (err error) //sys Setpriority(which int, who int, prio int) (err error) //sysnb Setregid(rgid int, egid int) (err error) //sysnb Setreuid(ruid int, euid int) (err error) //sysnb Setsid() (pid int, err error) //sysnb Settimeofday(tp *Timeval) (err error) //sysnb Setuid(uid int) (err error) //sys Stat(path string, stat *Stat_t) (err error) //sys Statvfs1(path string, buf *Statvfs_t, flags int) (err error) = SYS_STATVFS1 //sys Symlink(path string, link string) (err error) //sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) //sys Sync() (err error) //sys Truncate(path string, length int64) (err error) //sys Umask(newmask int) (oldmask int) //sys Unlink(path string) (err error) //sys Unlinkat(dirfd int, path string, flags int) (err error) //sys Unmount(path string, flags int) (err error) //sys write(fd int, p []byte) (n int, err error) //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) //sys munmap(addr uintptr, length uintptr) (err error) //sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) const ( mremapFixed = MAP_FIXED mremapDontunmap = 0 mremapMaymove = 0 ) //sys mremapNetBSD(oldp uintptr, oldsize uintptr, newp uintptr, newsize uintptr, flags int) (xaddr uintptr, err error) = SYS_MREMAP func mremap(oldaddr uintptr, oldlength uintptr, newlength uintptr, flags int, newaddr uintptr) (uintptr, error) { return mremapNetBSD(oldaddr, oldlength, newaddr, newlength, flags) }