diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_darwin.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/syscall_darwin.go | 448 |
1 files changed, 203 insertions, 245 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_darwin.go b/vendor/golang.org/x/sys/unix/syscall_darwin.go index 9945e5f..59542a8 100644 --- a/vendor/golang.org/x/sys/unix/syscall_darwin.go +++ b/vendor/golang.org/x/sys/unix/syscall_darwin.go @@ -13,11 +13,101 @@ package unix import ( - "runtime" + "fmt" "syscall" "unsafe" ) +//sys closedir(dir uintptr) (err error) +//sys readdir_r(dir uintptr, entry *Dirent, result **Dirent) (res Errno) + +func fdopendir(fd int) (dir uintptr, err error) { + r0, _, e1 := syscall_syscallPtr(libc_fdopendir_trampoline_addr, uintptr(fd), 0, 0) + dir = uintptr(r0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +var libc_fdopendir_trampoline_addr uintptr + +//go:cgo_import_dynamic libc_fdopendir fdopendir "/usr/lib/libSystem.B.dylib" + +func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { + // Simulate Getdirentries using fdopendir/readdir_r/closedir. + // We store the number of entries to skip in the seek + // offset of fd. See issue #31368. + // It's not the full required semantics, but should handle the case + // of calling Getdirentries or ReadDirent repeatedly. + // It won't handle assigning the results of lseek to *basep, or handle + // the directory being edited underfoot. + skip, err := Seek(fd, 0, 1 /* SEEK_CUR */) + if err != nil { + return 0, err + } + + // We need to duplicate the incoming file descriptor + // because the caller expects to retain control of it, but + // fdopendir expects to take control of its argument. + // Just Dup'ing the file descriptor is not enough, as the + // result shares underlying state. Use Openat to make a really + // new file descriptor referring to the same directory. + fd2, err := Openat(fd, ".", O_RDONLY, 0) + if err != nil { + return 0, err + } + d, err := fdopendir(fd2) + if err != nil { + Close(fd2) + return 0, err + } + defer closedir(d) + + var cnt int64 + for { + var entry Dirent + var entryp *Dirent + e := readdir_r(d, &entry, &entryp) + if e != 0 { + return n, errnoErr(e) + } + if entryp == nil { + break + } + if skip > 0 { + skip-- + cnt++ + continue + } + + reclen := int(entry.Reclen) + if reclen > len(buf) { + // Not enough room. Return for now. + // The counter will let us know where we should start up again. + // Note: this strategy for suspending in the middle and + // restarting is O(n^2) in the length of the directory. Oh well. + break + } + + // Copy entry into return buffer. + s := unsafe.Slice((*byte)(unsafe.Pointer(&entry)), reclen) + copy(buf, s) + + buf = buf[reclen:] + n += reclen + cnt++ + } + // Set the seek offset of the input fd to record + // how many files we've already returned. + _, err = Seek(fd, cnt, 0 /* SEEK_SET */) + if err != nil { + return n, err + } + + return n, nil +} + // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. type SockaddrDatalink struct { Len uint8 @@ -47,6 +137,30 @@ func (sa *SockaddrCtl) sockaddr() (unsafe.Pointer, _Socklen, error) { return unsafe.Pointer(&sa.raw), SizeofSockaddrCtl, nil } +// SockaddrVM implements the Sockaddr interface for AF_VSOCK type sockets. +// SockaddrVM provides access to Darwin VM sockets: a mechanism that enables +// bidirectional communication between a hypervisor and its guest virtual +// machines. +type SockaddrVM struct { + // CID and Port specify a context ID and port address for a VM socket. + // Guests have a unique CID, and hosts may have a well-known CID of: + // - VMADDR_CID_HYPERVISOR: refers to the hypervisor process. + // - VMADDR_CID_LOCAL: refers to local communication (loopback). + // - VMADDR_CID_HOST: refers to other processes on the host. + CID uint32 + Port uint32 + raw RawSockaddrVM +} + +func (sa *SockaddrVM) sockaddr() (unsafe.Pointer, _Socklen, error) { + sa.raw.Len = SizeofSockaddrVM + sa.raw.Family = AF_VSOCK + sa.raw.Port = sa.Port + sa.raw.Cid = sa.CID + + return unsafe.Pointer(&sa.raw), SizeofSockaddrVM, nil +} + func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { switch rsa.Addr.Family { case AF_SYSTEM: @@ -57,6 +171,13 @@ func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { sa.Unit = pp.Sc_unit return sa, nil } + case AF_VSOCK: + pp := (*RawSockaddrVM)(unsafe.Pointer(rsa)) + sa := &SockaddrVM{ + CID: pp.Cid, + Port: pp.Port, + } + return sa, nil } return nil, EAFNOSUPPORT } @@ -108,16 +229,7 @@ func direntNamlen(buf []byte) (uint64, bool) { func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) } func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) } - -type attrList struct { - bitmapCount uint16 - _ uint16 - CommonAttr uint32 - VolAttr uint32 - DirAttr uint32 - FileAttr uint32 - Forkattr uint32 -} +func PtraceDenyAttach() (err error) { return ptrace(PT_DENY_ATTACH, 0, 0, 0) } //sysnb pipe(p *[2]int32) (err error) @@ -127,8 +239,10 @@ func Pipe(p []int) (err error) { } var x [2]int32 err = pipe(&x) - p[0] = int(x[0]) - p[1] = int(x[1]) + if err == nil { + p[0] = int(x[0]) + p[1] = int(x[1]) + } return } @@ -248,36 +362,7 @@ func Flistxattr(fd int, dest []byte) (sz int, err error) { return flistxattr(fd, xattrPointer(dest), len(dest), 0) } -func setattrlistTimes(path string, times []Timespec, flags int) error { - _p0, err := BytePtrFromString(path) - if err != nil { - return err - } - - var attrList attrList - attrList.bitmapCount = ATTR_BIT_MAP_COUNT - attrList.CommonAttr = ATTR_CMN_MODTIME | ATTR_CMN_ACCTIME - - // order is mtime, atime: the opposite of Chtimes - attributes := [2]Timespec{times[1], times[0]} - options := 0 - if flags&AT_SYMLINK_NOFOLLOW != 0 { - options |= FSOPT_NOFOLLOW - } - return setattrlist( - _p0, - unsafe.Pointer(&attrList), - unsafe.Pointer(&attributes), - unsafe.Sizeof(attributes), - options) -} - -//sys setattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error) - -func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error { - // Darwin doesn't support SYS_UTIMENSAT - return ENOSYS -} +//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) /* * Wrapped @@ -290,11 +375,10 @@ func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error { func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(signum), 1) } //sys ioctl(fd int, req uint, arg uintptr) (err error) +//sys ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL func IoctlCtlInfo(fd int, ctlInfo *CtlInfo) error { - err := ioctl(fd, CTLIOCGINFO, uintptr(unsafe.Pointer(ctlInfo))) - runtime.KeepAlive(ctlInfo) - return err + return ioctlPtr(fd, CTLIOCGINFO, unsafe.Pointer(ctlInfo)) } // IfreqMTU is struct ifreq used to get or set a network device's MTU. @@ -308,16 +392,14 @@ type IfreqMTU struct { func IoctlGetIfreqMTU(fd int, ifname string) (*IfreqMTU, error) { var ifreq IfreqMTU copy(ifreq.Name[:], ifname) - err := ioctl(fd, SIOCGIFMTU, uintptr(unsafe.Pointer(&ifreq))) + err := ioctlPtr(fd, SIOCGIFMTU, unsafe.Pointer(&ifreq)) return &ifreq, err } // IoctlSetIfreqMTU performs the SIOCSIFMTU ioctl operation on fd to set the MTU // of the network device specified by ifreq.Name. func IoctlSetIfreqMTU(fd int, ifreq *IfreqMTU) error { - err := ioctl(fd, SIOCSIFMTU, uintptr(unsafe.Pointer(ifreq))) - runtime.KeepAlive(ifreq) - return err + return ioctlPtr(fd, SIOCSIFMTU, unsafe.Pointer(ifreq)) } //sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS_SYSCTL @@ -398,8 +480,75 @@ func GetsockoptXucred(fd, level, opt int) (*Xucred, error) { return x, err } +func GetsockoptTCPConnectionInfo(fd, level, opt int) (*TCPConnectionInfo, error) { + var value TCPConnectionInfo + vallen := _Socklen(SizeofTCPConnectionInfo) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func SysctlKinfoProc(name string, args ...int) (*KinfoProc, error) { + mib, err := sysctlmib(name, args...) + if err != nil { + return nil, err + } + + var kinfo KinfoProc + n := uintptr(SizeofKinfoProc) + if err := sysctl(mib, (*byte)(unsafe.Pointer(&kinfo)), &n, nil, 0); err != nil { + return nil, err + } + if n != SizeofKinfoProc { + return nil, EIO + } + return &kinfo, nil +} + +func SysctlKinfoProcSlice(name string, args ...int) ([]KinfoProc, error) { + mib, err := sysctlmib(name, args...) + if err != nil { + return nil, err + } + + for { + // Find size. + n := uintptr(0) + if err := sysctl(mib, nil, &n, nil, 0); err != nil { + return nil, err + } + if n == 0 { + return nil, nil + } + if n%SizeofKinfoProc != 0 { + return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc) + } + + // Read into buffer of that size. + buf := make([]KinfoProc, n/SizeofKinfoProc) + if err := sysctl(mib, (*byte)(unsafe.Pointer(&buf[0])), &n, nil, 0); err != nil { + if err == ENOMEM { + // Process table grew. Try again. + continue + } + return nil, err + } + if n%SizeofKinfoProc != 0 { + return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc) + } + + // The actual call may return less than the original reported required + // size so ensure we deal with that. + return buf[:n/SizeofKinfoProc], nil + } +} + //sys sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) +//sys shmat(id int, addr uintptr, flag int) (ret uintptr, err error) +//sys shmctl(id int, cmd int, buf *SysvShmDesc) (result int, err error) +//sys shmdt(addr uintptr) (err error) +//sys shmget(key int, size int, flag int) (id int, err error) + /* * Exposed directly */ @@ -455,11 +604,12 @@ func GetsockoptXucred(fd, level, opt int) (*Xucred, 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 Mount(fsType string, dir string, flags int, data unsafe.Pointer) (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 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) @@ -469,6 +619,7 @@ func GetsockoptXucred(fd, level, opt int) (*Xucred, 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) +//sys Setattrlist(path string, attrlist *Attrlist, attrBuf []byte, options int) (err error) //sys Setegid(egid int) (err error) //sysnb Seteuid(euid int) (err error) //sysnb Setgid(gid int) (err error) @@ -478,7 +629,6 @@ func GetsockoptXucred(fd, level, opt int) (*Xucred, error) { //sys Setprivexec(flag int) (err error) //sysnb Setregid(rgid int, egid int) (err error) //sysnb Setreuid(ruid int, euid 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) @@ -494,195 +644,3 @@ func GetsockoptXucred(fd, level, opt int) (*Xucred, 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 - -/* - * Unimplemented - */ -// Profil -// Sigaction -// Sigprocmask -// Getlogin -// Sigpending -// Sigaltstack -// Ioctl -// 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 -// 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 -// sendfile -// 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 -// Poll_nocancel -// Msgsnd_nocancel -// Msgrcv_nocancel -// Sem_wait_nocancel -// Aio_suspend_nocancel -// __sigwait_nocancel -// __semwait_signal_nocancel -// __mac_mount -// __mac_get_mount -// __mac_getfsstat |