| // Copyright 2009 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. |
| |
| // DragonFly BSD 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 ( |
| "sync" |
| "unsafe" |
| ) |
| |
| // See version list in https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/sys/param.h |
| var ( |
| osreldateOnce sync.Once |
| osreldate uint32 |
| ) |
| |
| // First __DragonFly_version after September 2019 ABI changes |
| // http://lists.dragonflybsd.org/pipermail/users/2019-September/358280.html |
| const _dragonflyABIChangeVersion = 500705 |
| |
| func supportsABI(ver uint32) bool { |
| osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") }) |
| return osreldate >= ver |
| } |
| |
| // 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 |
| Rcf uint16 |
| Route [16]uint16 |
| raw RawSockaddrDatalink |
| } |
| |
| func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { |
| return nil, EAFNOSUPPORT |
| } |
| |
| // Translate "kern.hostname" to []_C_int{0,1,2,3}. |
| func nametomib(name string) (mib []_C_int, err error) { |
| const siz = unsafe.Sizeof(mib[0]) |
| |
| // NOTE(rsc): It seems strange to set the buffer to have |
| // size CTL_MAXNAME+2 but use only CTL_MAXNAME |
| // as the size. I don't know why the +2 is here, but the |
| // kernel uses +2 for its own implementation of this function. |
| // I am scared that if we don't include the +2 here, the kernel |
| // will silently write 2 words farther than we specify |
| // and we'll get memory corruption. |
| var buf [CTL_MAXNAME + 2]_C_int |
| n := uintptr(CTL_MAXNAME) * siz |
| |
| p := (*byte)(unsafe.Pointer(&buf[0])) |
| bytes, err := ByteSliceFromString(name) |
| if err != nil { |
| return nil, err |
| } |
| |
| // Magic sysctl: "setting" 0.3 to a string name |
| // lets you read back the array of integers form. |
| if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil { |
| return nil, err |
| } |
| return buf[0 : n/siz], nil |
| } |
| |
| func direntIno(buf []byte) (uint64, bool) { |
| return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) |
| } |
| |
| func direntReclen(buf []byte) (uint64, bool) { |
| namlen, ok := direntNamlen(buf) |
| if !ok { |
| return 0, false |
| } |
| return (16 + namlen + 1 + 7) &^ 7, true |
| } |
| |
| func direntNamlen(buf []byte) (uint64, bool) { |
| return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) |
| } |
| |
| //sysnb pipe() (r int, w int, err error) |
| |
| func Pipe(p []int) (err error) { |
| if len(p) != 2 { |
| return EINVAL |
| } |
| p[0], p[1], err = pipe() |
| return |
| } |
| |
| //sysnb pipe2(p *[2]_C_int, flags int) (r int, w int, err error) |
| |
| func Pipe2(p []int, flags int) (err error) { |
| if len(p) != 2 { |
| return EINVAL |
| } |
| var pp [2]_C_int |
| // pipe2 on dragonfly takes an fds array as an argument, but still |
| // returns the file descriptors. |
| p[0], p[1], err = pipe2(&pp, flags) |
| return err |
| } |
| |
| //sys extpread(fd int, p []byte, flags int, offset int64) (n int, err error) |
| func Pread(fd int, p []byte, offset int64) (n int, err error) { |
| return extpread(fd, p, 0, offset) |
| } |
| |
| //sys extpwrite(fd int, p []byte, flags int, offset int64) (n int, err error) |
| func Pwrite(fd int, p []byte, offset int64) (n int, err error) { |
| return extpwrite(fd, p, 0, offset) |
| } |
| |
| func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) { |
| var rsa RawSockaddrAny |
| var len _Socklen = SizeofSockaddrAny |
| nfd, err = accept4(fd, &rsa, &len, flags) |
| if err != nil { |
| return |
| } |
| if len > SizeofSockaddrAny { |
| panic("RawSockaddrAny too small") |
| } |
| sa, err = anyToSockaddr(fd, &rsa) |
| if err != nil { |
| Close(nfd) |
| nfd = 0 |
| } |
| return |
| } |
| |
| //sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD |
| |
| func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { |
| var _p0 unsafe.Pointer |
| var bufsize uintptr |
| if len(buf) > 0 { |
| _p0 = unsafe.Pointer(&buf[0]) |
| bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) |
| } |
| r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags)) |
| n = int(r0) |
| if e1 != 0 { |
| err = e1 |
| } |
| return |
| } |
| |
| func setattrlistTimes(path string, times []Timespec, flags int) error { |
| // used on Darwin for UtimesNano |
| return ENOSYS |
| } |
| |
| //sys ioctl(fd int, req uint, arg uintptr) (err error) |
| |
| //sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL |
| |
| func sysctlUname(mib []_C_int, old *byte, oldlen *uintptr) error { |
| err := sysctl(mib, old, oldlen, nil, 0) |
| if err != nil { |
| // Utsname members on Dragonfly are only 32 bytes and |
| // the syscall returns ENOMEM in case the actual value |
| // is longer. |
| if err == ENOMEM { |
| err = nil |
| } |
| } |
| return err |
| } |
| |
| func Uname(uname *Utsname) error { |
| mib := []_C_int{CTL_KERN, KERN_OSTYPE} |
| n := unsafe.Sizeof(uname.Sysname) |
| if err := sysctlUname(mib, &uname.Sysname[0], &n); err != nil { |
| return err |
| } |
| uname.Sysname[unsafe.Sizeof(uname.Sysname)-1] = 0 |
| |
| mib = []_C_int{CTL_KERN, KERN_HOSTNAME} |
| n = unsafe.Sizeof(uname.Nodename) |
| if err := sysctlUname(mib, &uname.Nodename[0], &n); err != nil { |
| return err |
| } |
| uname.Nodename[unsafe.Sizeof(uname.Nodename)-1] = 0 |
| |
| mib = []_C_int{CTL_KERN, KERN_OSRELEASE} |
| n = unsafe.Sizeof(uname.Release) |
| if err := sysctlUname(mib, &uname.Release[0], &n); err != nil { |
| return err |
| } |
| uname.Release[unsafe.Sizeof(uname.Release)-1] = 0 |
| |
| mib = []_C_int{CTL_KERN, KERN_VERSION} |
| n = unsafe.Sizeof(uname.Version) |
| if err := sysctlUname(mib, &uname.Version[0], &n); 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 := sysctlUname(mib, &uname.Machine[0], &n); err != nil { |
| return err |
| } |
| uname.Machine[unsafe.Sizeof(uname.Machine)-1] = 0 |
| |
| 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) |
| } |
| |
| /* |
| * 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 Close(fd int) (err error) |
| //sys Dup(fd int) (nfd int, err error) |
| //sys Dup2(from int, to int) (err error) |
| //sys Exit(code int) |
| //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) |
| //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 Fstatfs(fd int, stat *Statfs_t) (err error) |
| //sys Fsync(fd int) (err error) |
| //sys Ftruncate(fd int, length int64) (err error) |
| //sys Getdents(fd int, buf []byte) (n int, err error) |
| //sys Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) |
| //sys Getdtablesize() (size int) |
| //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 Mknod(path string, mode uint32, dev int) (err error) |
| //sys Mknodat(fd 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 read(fd int, p []byte) (n int, err error) |
| //sys Readlink(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) |
| //sys Setlogin(name string) (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 Setresgid(rgid int, egid int, sgid int) (err error) |
| //sysnb Setresuid(ruid int, euid int, suid int) (err error) |
| //sysnb Setrlimit(which int, lim *Rlimit) (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 Statfs(path string, stat *Statfs_t) (err error) |
| //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 Undelete(path string) (err error) |
| //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 readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ |
| //sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE |
| //sys accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error) |
| //sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) |
| |
| /* |
| * Unimplemented |
| * TODO(jsing): Update this list for DragonFly. |
| */ |
| // Profil |
| // Sigaction |
| // Sigprocmask |
| // Getlogin |
| // Sigpending |
| // Sigaltstack |
| // Reboot |
| // Execve |
| // Vfork |
| // Sbrk |
| // Sstk |
| // Ovadvise |
| // Mincore |
| // Setitimer |
| // Swapon |
| // Select |
| // Sigsuspend |
| // Readv |
| // Writev |
| // Nfssvc |
| // Getfh |
| // Quotactl |
| // Mount |
| // Csops |
| // Waitid |
| // Add_profil |
| // Kdebug_trace |
| // Sigreturn |
| // Atsocket |
| // Kqueue_from_portset_np |
| // Kqueue_portset |
| // Getattrlist |
| // Setattrlist |
| // Getdirentriesattr |
| // Searchfs |
| // Delete |
| // Copyfile |
| // Watchevent |
| // Waitevent |
| // Modwatch |
| // Getxattr |
| // Fgetxattr |
| // Setxattr |
| // Fsetxattr |
| // Removexattr |
| // Fremovexattr |
| // Listxattr |
| // Flistxattr |
| // Fsctl |
| // Initgroups |
| // Posix_spawn |
| // Nfsclnt |
| // Fhopen |
| // Minherit |
| // Semsys |
| // Msgsys |
| // Shmsys |
| // Semctl |
| // Semget |
| // Semop |
| // Msgctl |
| // Msgget |
| // Msgsnd |
| // Msgrcv |
| // Shmat |
| // Shmctl |
| // Shmdt |
| // Shmget |
| // Shm_open |
| // Shm_unlink |
| // Sem_open |
| // Sem_close |
| // Sem_unlink |
| // Sem_wait |
| // Sem_trywait |
| // Sem_post |
| // Sem_getvalue |
| // Sem_init |
| // Sem_destroy |
| // Open_extended |
| // Umask_extended |
| // Stat_extended |
| // Lstat_extended |
| // Fstat_extended |
| // Chmod_extended |
| // Fchmod_extended |
| // Access_extended |
| // Settid |
| // Gettid |
| // Setsgroups |
| // Getsgroups |
| // Setwgroups |
| // Getwgroups |
| // Mkfifo_extended |
| // Mkdir_extended |
| // Identitysvc |
| // Shared_region_check_np |
| // Shared_region_map_np |
| // __pthread_mutex_destroy |
| // __pthread_mutex_init |
| // __pthread_mutex_lock |
| // __pthread_mutex_trylock |
| // __pthread_mutex_unlock |
| // __pthread_cond_init |
| // __pthread_cond_destroy |
| // __pthread_cond_broadcast |
| // __pthread_cond_signal |
| // Setsid_with_pid |
| // __pthread_cond_timedwait |
| // Aio_fsync |
| // Aio_return |
| // Aio_suspend |
| // Aio_cancel |
| // Aio_error |
| // Aio_read |
| // Aio_write |
| // Lio_listio |
| // __pthread_cond_wait |
| // Iopolicysys |
| // __pthread_kill |
| // __pthread_sigmask |
| // __sigwait |
| // __disable_threadsignal |
| // __pthread_markcancel |
| // __pthread_canceled |
| // __semwait_signal |
| // Proc_info |
| // Stat64_extended |
| // Lstat64_extended |
| // Fstat64_extended |
| // __pthread_chdir |
| // __pthread_fchdir |
| // Audit |
| // Auditon |
| // Getauid |
| // Setauid |
| // Getaudit |
| // Setaudit |
| // Getaudit_addr |
| // Setaudit_addr |
| // Auditctl |
| // Bsdthread_create |
| // Bsdthread_terminate |
| // Stack_snapshot |
| // Bsdthread_register |
| // Workq_open |
| // Workq_ops |
| // __mac_execve |
| // __mac_syscall |
| // __mac_get_file |
| // __mac_set_file |
| // __mac_get_link |
| // __mac_set_link |
| // __mac_get_proc |
| // __mac_set_proc |
| // __mac_get_fd |
| // __mac_set_fd |
| // __mac_get_pid |
| // __mac_get_lcid |
| // __mac_get_lctx |
| // __mac_set_lctx |
| // Setlcid |
| // Read_nocancel |
| // Write_nocancel |
| // Open_nocancel |
| // Close_nocancel |
| // Wait4_nocancel |
| // Recvmsg_nocancel |
| // Sendmsg_nocancel |
| // Recvfrom_nocancel |
| // Accept_nocancel |
| // Fcntl_nocancel |
| // Select_nocancel |
| // Fsync_nocancel |
| // Connect_nocancel |
| // Sigsuspend_nocancel |
| // Readv_nocancel |
| // Writev_nocancel |
| // Sendto_nocancel |
| // Pread_nocancel |
| // Pwrite_nocancel |
| // Waitid_nocancel |
| // Msgsnd_nocancel |
| // Msgrcv_nocancel |
| // Sem_wait_nocancel |
| // Aio_suspend_nocancel |
| // __sigwait_nocancel |
| // __semwait_signal_nocancel |
| // __mac_mount |
| // __mac_get_mount |
| // __mac_getfsstat |
