diff --git a/syscall_zos_s390x.go b/syscall_zos_s390x.go new file mode 100644 index 0000000000..4d12c8f2ef --- /dev/null +++ b/syscall_zos_s390x.go @@ -0,0 +1,1974 @@ +// Copyright 2020 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. + +//go:build zos && s390x +// +build zos,s390x + +package unix + +import ( + "bytes" + "fmt" + "runtime" + "sort" + "sync" + "syscall" + "unsafe" + + "golang.org/x/sys/internal/unsafeheader" +) + +const ( + O_CLOEXEC = 0 // Dummy value (not supported). + AF_LOCAL = AF_UNIX // AF_LOCAL is an alias for AF_UNIX +) + +func syscall_syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) +func syscall_rawsyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) +func syscall_syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) +func syscall_rawsyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) +func syscall_syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) +func syscall_rawsyscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) + +func copyStat(stat *Stat_t, statLE *Stat_LE_t) { + stat.Dev = uint64(statLE.Dev) + stat.Ino = uint64(statLE.Ino) + stat.Nlink = uint64(statLE.Nlink) + stat.Mode = uint32(statLE.Mode) + stat.Uid = uint32(statLE.Uid) + stat.Gid = uint32(statLE.Gid) + stat.Rdev = uint64(statLE.Rdev) + stat.Size = statLE.Size + stat.Atim.Sec = int64(statLE.Atim) + stat.Atim.Nsec = 0 //zos doesn't return nanoseconds + stat.Mtim.Sec = int64(statLE.Mtim) + stat.Mtim.Nsec = 0 //zos doesn't return nanoseconds + stat.Ctim.Sec = int64(statLE.Ctim) + stat.Ctim.Nsec = 0 //zos doesn't return nanoseconds + stat.Blksize = int64(statLE.Blksize) + stat.Blocks = statLE.Blocks +} + +func svcCall(fnptr unsafe.Pointer, argv *unsafe.Pointer, dsa *uint64) +func svcLoad(name *byte) unsafe.Pointer +func svcUnload(name *byte, fnptr unsafe.Pointer) int64 + +func (d *Dirent) NameString() string { + if d == nil { + return "" + } + var namlen int = 0 + for i := 0; i < len(d.Name); i++ { + if d.Name[i] == 0 { + break + } + namlen++ + } + return string(d.Name[:namlen]) +} + +func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) { + if sa.Port < 0 || sa.Port > 0xFFFF { + return nil, 0, EINVAL + } + sa.raw.Len = SizeofSockaddrInet4 + sa.raw.Family = AF_INET + p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) + p[0] = byte(sa.Port >> 8) + p[1] = byte(sa.Port) + sa.raw.Addr = sa.Addr + return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil +} + +func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) { + if sa.Port < 0 || sa.Port > 0xFFFF { + return nil, 0, EINVAL + } + sa.raw.Len = SizeofSockaddrInet6 + sa.raw.Family = AF_INET6 + p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) + p[0] = byte(sa.Port >> 8) + p[1] = byte(sa.Port) + sa.raw.Scope_id = sa.ZoneId + sa.raw.Addr = sa.Addr + return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil +} + +func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) { + name := sa.Name + n := len(name) + if n >= len(sa.raw.Path) || n == 0 { + return nil, 0, EINVAL + } + sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL + sa.raw.Family = AF_UNIX + for i := 0; i < n; i++ { + sa.raw.Path[i] = int8(name[i]) + } + return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil +} + +func anyToSockaddr(_ int, rsa *RawSockaddrAny) (Sockaddr, error) { + // TODO(neeilan): Implement use of first param (fd) + switch rsa.Addr.Family { + case AF_UNIX: + pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) + sa := new(SockaddrUnix) + // For z/OS, only replace NUL with @ when the + // length is not zero. + if pp.Len != 0 && pp.Path[0] == 0 { + // "Abstract" Unix domain socket. + // Rewrite leading NUL as @ for textual display. + // (This is the standard convention.) + // Not friendly to overwrite in place, + // but the callers below don't care. + pp.Path[0] = '@' + } + + // Assume path ends at NUL. + // + // For z/OS, the length of the name is a field + // in the structure. To be on the safe side, we + // will still scan the name for a NUL but only + // to the length provided in the structure. + // + // This is not technically the Linux semantics for + // abstract Unix domain sockets--they are supposed + // to be uninterpreted fixed-size binary blobs--but + // everyone uses this convention. + n := 0 + for n < int(pp.Len) && pp.Path[n] != 0 { + n++ + } + bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n] + sa.Name = string(bytes) + return sa, nil + + case AF_INET: + pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) + sa := new(SockaddrInet4) + p := (*[2]byte)(unsafe.Pointer(&pp.Port)) + sa.Port = int(p[0])<<8 + int(p[1]) + sa.Addr = pp.Addr + return sa, nil + + case AF_INET6: + pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) + sa := new(SockaddrInet6) + p := (*[2]byte)(unsafe.Pointer(&pp.Port)) + sa.Port = int(p[0])<<8 + int(p[1]) + sa.ZoneId = pp.Scope_id + sa.Addr = pp.Addr + return sa, nil + } + return nil, EAFNOSUPPORT +} + +func Accept(fd int) (nfd int, sa Sockaddr, err error) { + var rsa RawSockaddrAny + var len _Socklen = SizeofSockaddrAny + nfd, err = accept(fd, &rsa, &len) + if err != nil { + return + } + // TODO(neeilan): Remove 0 in call + sa, err = anyToSockaddr(0, &rsa) + if err != nil { + Close(nfd) + nfd = 0 + } + return +} + +func (iov *Iovec) SetLen(length int) { + iov.Len = uint64(length) +} + +func (msghdr *Msghdr) SetControllen(length int) { + msghdr.Controllen = int32(length) +} + +func (cmsg *Cmsghdr) SetLen(length int) { + cmsg.Len = int32(length) +} + +//sys fcntl(fd int, cmd int, arg int) (val int, err error) +//sys read(fd int, p []byte) (n int, err error) +//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ +//sys write(fd int, p []byte) (n int, err error) + +//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) = SYS___ACCEPT_A +//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = SYS___BIND_A +//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = SYS___CONNECT_A +//sysnb getgroups(n int, list *_Gid_t) (nn int, err error) +//sysnb setgroups(n int, list *_Gid_t) (err error) +//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) +//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) +//sysnb socket(domain int, typ int, proto int) (fd int, err error) +//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) +//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = SYS___GETPEERNAME_A +//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = SYS___GETSOCKNAME_A +//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = SYS___RECVFROM_A +//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) = SYS___SENDTO_A +//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = SYS___RECVMSG_A +//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = SYS___SENDMSG_A +//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) = SYS_MMAP +//sys munmap(addr uintptr, length uintptr) (err error) = SYS_MUNMAP +//sys ioctl(fd int, req uint, arg uintptr) (err error) = SYS_IOCTL + +//sys Access(path string, mode uint32) (err error) = SYS___ACCESS_A +//sys Chdir(path string) (err error) = SYS___CHDIR_A +//sys Chown(path string, uid int, gid int) (err error) = SYS___CHOWN_A +//sys Chmod(path string, mode uint32) (err error) = SYS___CHMOD_A +//sys Creat(path string, mode uint32) (fd int, err error) = SYS___CREAT_A +//sys Dup(oldfd int) (fd int, err error) +//sys Dup2(oldfd int, newfd int) (err error) +//sys Errno2() (er2 int) = SYS___ERRNO2 +//sys Err2ad() (eadd *int) = SYS___ERR2AD +//sys Exit(code int) +//sys Fchdir(fd int) (err error) +//sys Fchmod(fd int, mode uint32) (err error) +//sys Fchown(fd int, uid int, gid int) (err error) +//sys FcntlInt(fd uintptr, cmd int, arg int) (retval int, err error) = SYS_FCNTL +//sys fstat(fd int, stat *Stat_LE_t) (err error) + +func Fstat(fd int, stat *Stat_t) (err error) { + var statLE Stat_LE_t + err = fstat(fd, &statLE) + copyStat(stat, &statLE) + return +} + +//sys Fstatvfs(fd int, stat *Statvfs_t) (err error) = SYS_FSTATVFS +//sys Fsync(fd int) (err error) +//sys Ftruncate(fd int, length int64) (err error) +//sys Getpagesize() (pgsize int) = SYS_GETPAGESIZE +//sys Mprotect(b []byte, prot int) (err error) = SYS_MPROTECT +//sys Msync(b []byte, flags int) (err error) = SYS_MSYNC +//sys Poll(fds []PollFd, timeout int) (n int, err error) = SYS_POLL +//sys Times(tms *Tms) (ticks uintptr, err error) = SYS_TIMES +//sys W_Getmntent(buff *byte, size int) (lastsys int, err error) = SYS_W_GETMNTENT +//sys W_Getmntent_A(buff *byte, size int) (lastsys int, err error) = SYS___W_GETMNTENT_A + +//sys mount_LE(path string, filesystem string, fstype string, mtm uint32, parmlen int32, parm string) (err error) = SYS___MOUNT_A +//sys unmount(filesystem string, mtm int) (err error) = SYS___UMOUNT_A +//sys Chroot(path string) (err error) = SYS___CHROOT_A +//sys Select(nmsgsfds int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (ret int, err error) = SYS_SELECT +//sysnb Uname(buf *Utsname) (err error) = SYS___UNAME_A + +func Ptsname(fd int) (name string, err error) { + r0, _, e1 := syscall_syscall(SYS___PTSNAME_A, uintptr(fd), 0, 0) + name = u2s(unsafe.Pointer(r0)) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +func u2s(cstr unsafe.Pointer) string { + str := (*[1024]uint8)(cstr) + i := 0 + for str[i] != 0 { + i++ + } + return string(str[:i]) +} + +func Close(fd int) (err error) { + _, _, e1 := syscall_syscall(SYS_CLOSE, uintptr(fd), 0, 0) + for i := 0; e1 == EAGAIN && i < 10; i++ { + _, _, _ = syscall_syscall(SYS_USLEEP, uintptr(10), 0, 0) + _, _, e1 = syscall_syscall(SYS_CLOSE, uintptr(fd), 0, 0) + } + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +var mapper = &mmapper{ + active: make(map[*byte][]byte), + mmap: mmap, + munmap: munmap, +} + +// Dummy function: there are no semantics for Madvise on z/OS +func Madvise(b []byte, advice int) (err error) { + return +} + +func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) { + return mapper.Mmap(fd, offset, length, prot, flags) +} + +func Munmap(b []byte) (err error) { + return mapper.Munmap(b) +} + +//sys Gethostname(buf []byte) (err error) = SYS___GETHOSTNAME_A +//sysnb Getegid() (egid int) +//sysnb Geteuid() (uid int) +//sysnb Getgid() (gid int) +//sysnb Getpid() (pid int) +//sysnb Getpgid(pid int) (pgid int, err error) = SYS_GETPGID + +func Getpgrp() (pid int) { + pid, _ = Getpgid(0) + return +} + +//sysnb Getppid() (pid int) +//sys Getpriority(which int, who int) (prio int, err error) +//sysnb Getrlimit(resource int, rlim *Rlimit) (err error) = SYS_GETRLIMIT + +//sysnb getrusage(who int, rusage *rusage_zos) (err error) = SYS_GETRUSAGE + +func Getrusage(who int, rusage *Rusage) (err error) { + var ruz rusage_zos + err = getrusage(who, &ruz) + //Only the first two fields of Rusage are set + rusage.Utime.Sec = ruz.Utime.Sec + rusage.Utime.Usec = int64(ruz.Utime.Usec) + rusage.Stime.Sec = ruz.Stime.Sec + rusage.Stime.Usec = int64(ruz.Stime.Usec) + return +} + +//sysnb Getsid(pid int) (sid int, err error) = SYS_GETSID +//sysnb Getuid() (uid int) +//sysnb Kill(pid int, sig Signal) (err error) +//sys Lchown(path string, uid int, gid int) (err error) = SYS___LCHOWN_A +//sys Link(path string, link string) (err error) = SYS___LINK_A +//sys Listen(s int, n int) (err error) +//sys lstat(path string, stat *Stat_LE_t) (err error) = SYS___LSTAT_A + +func Lstat(path string, stat *Stat_t) (err error) { + var statLE Stat_LE_t + err = lstat(path, &statLE) + copyStat(stat, &statLE) + return +} + +//sys Mkdir(path string, mode uint32) (err error) = SYS___MKDIR_A +//sys Mkfifo(path string, mode uint32) (err error) = SYS___MKFIFO_A +//sys Mknod(path string, mode uint32, dev int) (err error) = SYS___MKNOD_A +//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 Readlink(path string, buf []byte) (n int, err error) = SYS___READLINK_A +//sys Rename(from string, to string) (err error) = SYS___RENAME_A +//sys Rmdir(path string) (err error) = SYS___RMDIR_A +//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK +//sys Setpriority(which int, who int, prio int) (err error) +//sysnb Setpgid(pid int, pgid int) (err error) = SYS_SETPGID +//sysnb Setrlimit(resource int, lim *Rlimit) (err error) +//sysnb Setregid(rgid int, egid int) (err error) = SYS_SETREGID +//sysnb Setreuid(ruid int, euid int) (err error) = SYS_SETREUID +//sysnb Setsid() (pid int, err error) = SYS_SETSID +//sys Setuid(uid int) (err error) = SYS_SETUID +//sys Setgid(uid int) (err error) = SYS_SETGID +//sys Shutdown(fd int, how int) (err error) +//sys stat(path string, statLE *Stat_LE_t) (err error) = SYS___STAT_A + +func Stat(path string, sta *Stat_t) (err error) { + var statLE Stat_LE_t + err = stat(path, &statLE) + copyStat(sta, &statLE) + return +} + +//sys Symlink(path string, link string) (err error) = SYS___SYMLINK_A +//sys Sync() = SYS_SYNC +//sys Truncate(path string, length int64) (err error) = SYS___TRUNCATE_A +//sys Tcgetattr(fildes int, termptr *Termios) (err error) = SYS_TCGETATTR +//sys Tcsetattr(fildes int, when int, termptr *Termios) (err error) = SYS_TCSETATTR +//sys Umask(mask int) (oldmask int) +//sys Unlink(path string) (err error) = SYS___UNLINK_A +//sys Utime(path string, utim *Utimbuf) (err error) = SYS___UTIME_A + +//sys open(path string, mode int, perm uint32) (fd int, err error) = SYS___OPEN_A + +func Open(path string, mode int, perm uint32) (fd int, err error) { + return open(path, mode, perm) +} + +func Mkfifoat(dirfd int, path string, mode uint32) (err error) { + wd, err := Getwd() + if err != nil { + return err + } + + if err := Fchdir(dirfd); err != nil { + return err + } + defer Chdir(wd) + + return Mkfifo(path, mode) +} + +//sys remove(path string) (err error) + +func Remove(path string) error { + return remove(path) +} + +const ImplementsGetwd = true + +func Getcwd(buf []byte) (n int, err error) { + var p unsafe.Pointer + if len(buf) > 0 { + p = unsafe.Pointer(&buf[0]) + } else { + p = unsafe.Pointer(&_zero) + } + _, _, e := syscall_syscall(SYS___GETCWD_A, uintptr(p), uintptr(len(buf)), 0) + n = clen(buf) + 1 + if e != 0 { + err = errnoErr(e) + } + return +} + +func Getwd() (wd string, err error) { + var buf [PathMax]byte + n, err := Getcwd(buf[0:]) + if err != nil { + return "", err + } + // Getcwd returns the number of bytes written to buf, including the NUL. + if n < 1 || n > len(buf) || buf[n-1] != 0 { + return "", EINVAL + } + return string(buf[0 : n-1]), nil +} + +func Getgroups() (gids []int, err error) { + n, err := getgroups(0, nil) + if err != nil { + return nil, err + } + if n == 0 { + return nil, nil + } + + // Sanity check group count. Max is 1<<16 on Linux. + if n < 0 || n > 1<<20 { + return nil, EINVAL + } + + a := make([]_Gid_t, n) + n, err = getgroups(n, &a[0]) + if err != nil { + return nil, err + } + gids = make([]int, n) + for i, v := range a[0:n] { + gids[i] = int(v) + } + return +} + +func Setgroups(gids []int) (err error) { + if len(gids) == 0 { + return setgroups(0, nil) + } + + a := make([]_Gid_t, len(gids)) + for i, v := range gids { + a[i] = _Gid_t(v) + } + return setgroups(len(a), &a[0]) +} + +func gettid() uint64 + +func Gettid() (tid int) { + return int(gettid()) +} + +type WaitStatus uint32 + +// Wait status is 7 bits at bottom, either 0 (exited), +// 0x7F (stopped), or a signal number that caused an exit. +// The 0x80 bit is whether there was a core dump. +// An extra number (exit code, signal causing a stop) +// is in the high bits. At least that's the idea. +// There are various irregularities. For example, the +// "continued" status is 0xFFFF, distinguishing itself +// from stopped via the core dump bit. + +const ( + mask = 0x7F + core = 0x80 + exited = 0x00 + stopped = 0x7F + shift = 8 +) + +func (w WaitStatus) Exited() bool { return w&mask == exited } + +func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != exited } + +func (w WaitStatus) Stopped() bool { return w&0xFF == stopped } + +func (w WaitStatus) Continued() bool { return w == 0xFFFF } + +func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 } + +func (w WaitStatus) ExitStatus() int { + if !w.Exited() { + return -1 + } + return int(w>>shift) & 0xFF +} + +func (w WaitStatus) Signal() Signal { + if !w.Signaled() { + return -1 + } + return Signal(w & mask) +} + +func (w WaitStatus) StopSignal() Signal { + if !w.Stopped() { + return -1 + } + return Signal(w>>shift) & 0xFF +} + +func (w WaitStatus) TrapCause() int { return -1 } + +//sys waitpid(pid int, wstatus *_C_int, options int) (wpid int, err error) + +func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) { + // TODO(mundaym): z/OS doesn't have wait4. I don't think getrusage does what we want. + // At the moment rusage will not be touched. + var status _C_int + wpid, err = waitpid(pid, &status, options) + if wstatus != nil { + *wstatus = WaitStatus(status) + } + return +} + +//sysnb gettimeofday(tv *timeval_zos) (err error) + +func Gettimeofday(tv *Timeval) (err error) { + var tvz timeval_zos + err = gettimeofday(&tvz) + tv.Sec = tvz.Sec + tv.Usec = int64(tvz.Usec) + return +} + +func Time(t *Time_t) (tt Time_t, err error) { + var tv Timeval + err = Gettimeofday(&tv) + if err != nil { + return 0, err + } + if t != nil { + *t = Time_t(tv.Sec) + } + return Time_t(tv.Sec), nil +} + +func setTimespec(sec, nsec int64) Timespec { + return Timespec{Sec: sec, Nsec: nsec} +} + +func setTimeval(sec, usec int64) Timeval { //fix + return Timeval{Sec: sec, Usec: usec} +} + +//sysnb pipe(p *[2]_C_int) (err error) + +func Pipe(p []int) (err error) { + if len(p) != 2 { + return EINVAL + } + var pp [2]_C_int + err = pipe(&pp) + if err == nil { + p[0] = int(pp[0]) + p[1] = int(pp[1]) + } + return +} + +//sys utimes(path string, timeval *[2]Timeval) (err error) = SYS___UTIMES_A + +func Utimes(path string, tv []Timeval) (err error) { + if len(tv) != 2 { + return EINVAL + } + return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) +} + +func UtimesNano(path string, ts []Timespec) error { + if len(ts) != 2 { + return EINVAL + } + // Not as efficient as it could be because Timespec and + // Timeval have different types in the different OSes + tv := [2]Timeval{ + NsecToTimeval(TimespecToNsec(ts[0])), + NsecToTimeval(TimespecToNsec(ts[1])), + } + return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) +} + +func Getsockname(fd int) (sa Sockaddr, err error) { + var rsa RawSockaddrAny + var len _Socklen = SizeofSockaddrAny + if err = getsockname(fd, &rsa, &len); err != nil { + return + } + // TODO(neeilan) : Remove this 0 ( added to get sys/unix compiling on z/OS ) + return anyToSockaddr(0, &rsa) +} + +const ( + // identifier constants + nwmHeaderIdentifier = 0xd5e6d4c8 + nwmFilterIdentifier = 0xd5e6d4c6 + nwmTCPConnIdentifier = 0xd5e6d4c3 + nwmRecHeaderIdentifier = 0xd5e6d4d9 + nwmIPStatsIdentifier = 0xd5e6d4c9d7e2e340 + nwmIPGStatsIdentifier = 0xd5e6d4c9d7c7e2e3 + nwmTCPStatsIdentifier = 0xd5e6d4e3c3d7e2e3 + nwmUDPStatsIdentifier = 0xd5e6d4e4c4d7e2e3 + nwmICMPGStatsEntry = 0xd5e6d4c9c3d4d7c7 + nwmICMPTStatsEntry = 0xd5e6d4c9c3d4d7e3 + + // nwmHeader constants + nwmVersion1 = 1 + nwmVersion2 = 2 + nwmCurrentVer = 2 + + nwmTCPConnType = 1 + nwmGlobalStatsType = 14 + + // nwmFilter constants + nwmFilterLclAddrMask = 0x20000000 // Local address + nwmFilterSrcAddrMask = 0x20000000 // Source address + nwmFilterLclPortMask = 0x10000000 // Local port + nwmFilterSrcPortMask = 0x10000000 // Source port + + // nwmConnEntry constants + nwmTCPStateClosed = 1 + nwmTCPStateListen = 2 + nwmTCPStateSynSent = 3 + nwmTCPStateSynRcvd = 4 + nwmTCPStateEstab = 5 + nwmTCPStateFinWait1 = 6 + nwmTCPStateFinWait2 = 7 + nwmTCPStateClosWait = 8 + nwmTCPStateLastAck = 9 + nwmTCPStateClosing = 10 + nwmTCPStateTimeWait = 11 + nwmTCPStateDeletTCB = 12 + + // Existing constants on linux + BPF_TCP_CLOSE = 1 + BPF_TCP_LISTEN = 2 + BPF_TCP_SYN_SENT = 3 + BPF_TCP_SYN_RECV = 4 + BPF_TCP_ESTABLISHED = 5 + BPF_TCP_FIN_WAIT1 = 6 + BPF_TCP_FIN_WAIT2 = 7 + BPF_TCP_CLOSE_WAIT = 8 + BPF_TCP_LAST_ACK = 9 + BPF_TCP_CLOSING = 10 + BPF_TCP_TIME_WAIT = 11 + BPF_TCP_NEW_SYN_RECV = -1 + BPF_TCP_MAX_STATES = -2 +) + +type nwmTriplet struct { + offset uint32 + length uint32 + number uint32 +} + +type nwmQuadruplet struct { + offset uint32 + length uint32 + number uint32 + match uint32 +} + +type nwmHeader struct { + ident uint32 + length uint32 + version uint16 + nwmType uint16 + bytesNeeded uint32 + options uint32 + _ [16]byte + inputDesc nwmTriplet + outputDesc nwmQuadruplet +} + +type nwmFilter struct { + ident uint32 + flags uint32 + resourceName [8]byte + resourceId uint32 + listenerId uint32 + local [28]byte // union of sockaddr4 and sockaddr6 + remote [28]byte // union of sockaddr4 and sockaddr6 + _ uint16 + _ uint16 + asid uint16 + _ [2]byte + tnLuName [8]byte + tnMonGrp uint32 + tnAppl [8]byte + applData [40]byte + nInterface [16]byte + dVipa [16]byte + dVipaPfx uint16 + dVipaPort uint16 + dVipaFamily byte + _ [3]byte + destXCF [16]byte + destXCFPfx uint16 + destXCFFamily byte + _ [1]byte + targIP [16]byte + targIPPfx uint16 + targIPFamily byte + _ [1]byte + _ [20]byte +} + +type nwmRecHeader struct { + ident uint32 + length uint32 + number byte + _ [3]byte +} + +type nwmTCPStatsEntry struct { + ident uint64 + currEstab uint32 + activeOpened uint32 + passiveOpened uint32 + connClosed uint32 + estabResets uint32 + attemptFails uint32 + passiveDrops uint32 + timeWaitReused uint32 + inSegs uint64 + predictAck uint32 + predictData uint32 + inDupAck uint32 + inBadSum uint32 + inBadLen uint32 + inShort uint32 + inDiscOldTime uint32 + inAllBeforeWin uint32 + inSomeBeforeWin uint32 + inAllAfterWin uint32 + inSomeAfterWin uint32 + inOutOfOrder uint32 + inAfterClose uint32 + inWinProbes uint32 + inWinUpdates uint32 + outWinUpdates uint32 + outSegs uint64 + outDelayAcks uint32 + outRsts uint32 + retransSegs uint32 + retransTimeouts uint32 + retransDrops uint32 + pmtuRetrans uint32 + pmtuErrors uint32 + outWinProbes uint32 + probeDrops uint32 + keepAliveProbes uint32 + keepAliveDrops uint32 + finwait2Drops uint32 + acceptCount uint64 + inBulkQSegs uint64 + inDiscards uint64 + connFloods uint32 + connStalls uint32 + cfgEphemDef uint16 + ephemInUse uint16 + ephemHiWater uint16 + flags byte + _ [1]byte + ephemExhaust uint32 + smcRCurrEstabLnks uint32 + smcRLnkActTimeOut uint32 + smcRActLnkOpened uint32 + smcRPasLnkOpened uint32 + smcRLnksClosed uint32 + smcRCurrEstab uint32 + smcRActiveOpened uint32 + smcRPassiveOpened uint32 + smcRConnClosed uint32 + smcRInSegs uint64 + smcROutSegs uint64 + smcRInRsts uint32 + smcROutRsts uint32 + smcDCurrEstabLnks uint32 + smcDActLnkOpened uint32 + smcDPasLnkOpened uint32 + smcDLnksClosed uint32 + smcDCurrEstab uint32 + smcDActiveOpened uint32 + smcDPassiveOpened uint32 + smcDConnClosed uint32 + smcDInSegs uint64 + smcDOutSegs uint64 + smcDInRsts uint32 + smcDOutRsts uint32 +} + +type nwmConnEntry struct { + ident uint32 + local [28]byte // union of sockaddr4 and sockaddr6 + remote [28]byte // union of sockaddr4 and sockaddr6 + startTime [8]byte // uint64, changed to prevent padding from being inserted + lastActivity [8]byte // uint64 + bytesIn [8]byte // uint64 + bytesOut [8]byte // uint64 + inSegs [8]byte // uint64 + outSegs [8]byte // uint64 + state uint16 + activeOpen byte + flag01 byte + outBuffered uint32 + inBuffered uint32 + maxSndWnd uint32 + reXmtCount uint32 + congestionWnd uint32 + ssThresh uint32 + roundTripTime uint32 + roundTripVar uint32 + sendMSS uint32 + sndWnd uint32 + rcvBufSize uint32 + sndBufSize uint32 + outOfOrderCount uint32 + lcl0WindowCount uint32 + rmt0WindowCount uint32 + dupacks uint32 + flag02 byte + sockOpt6Cont byte + asid uint16 + resourceName [8]byte + resourceId uint32 + subtask uint32 + sockOpt byte + sockOpt6 byte + clusterConnFlag byte + proto byte + targetAppl [8]byte + luName [8]byte + clientUserId [8]byte + logMode [8]byte + timeStamp uint32 + timeStampAge uint32 + serverResourceId uint32 + intfName [16]byte + ttlsStatPol byte + ttlsStatConn byte + ttlsSSLProt uint16 + ttlsNegCiph [2]byte + ttlsSecType byte + ttlsFIPS140Mode byte + ttlsUserID [8]byte + applData [40]byte + inOldestTime [8]byte // uint64 + outOldestTime [8]byte // uint64 + tcpTrustedPartner byte + _ [3]byte + bulkDataIntfName [16]byte + ttlsNegCiph4 [4]byte + smcReason uint32 + lclSMCLinkId uint32 + rmtSMCLinkId uint32 + smcStatus byte + smcFlags byte + _ [2]byte + rcvWnd uint32 + lclSMCBufSz uint32 + rmtSMCBufSz uint32 + ttlsSessID [32]byte + ttlsSessIDLen int16 + _ [1]byte + smcDStatus byte + smcDReason uint32 +} + +var svcNameTable [][]byte = [][]byte{ + []byte("\xc5\xe9\xc2\xd5\xd4\xc9\xc6\xf4"), // svc_EZBNMIF4 +} + +const ( + svc_EZBNMIF4 = 0 +) + +func GetsockoptTCPInfo(fd, level, opt int) (*TCPInfo, error) { + jobname := []byte("\x5c\x40\x40\x40\x40\x40\x40\x40") // "*" + responseBuffer := [4096]byte{0} + var bufferAlet, reasonCode uint32 = 0, 0 + var bufferLen, returnValue, returnCode int32 = 4096, 0, 0 + + dsa := [18]uint64{0} + var argv [7]unsafe.Pointer + argv[0] = unsafe.Pointer(&jobname[0]) + argv[1] = unsafe.Pointer(&responseBuffer[0]) + argv[2] = unsafe.Pointer(&bufferAlet) + argv[3] = unsafe.Pointer(&bufferLen) + argv[4] = unsafe.Pointer(&returnValue) + argv[5] = unsafe.Pointer(&returnCode) + argv[6] = unsafe.Pointer(&reasonCode) + + request := (*struct { + header nwmHeader + filter nwmFilter + })(unsafe.Pointer(&responseBuffer[0])) + + EZBNMIF4 := svcLoad(&svcNameTable[svc_EZBNMIF4][0]) + if EZBNMIF4 == nil { + return nil, errnoErr(EINVAL) + } + + // GetGlobalStats EZBNMIF4 call + request.header.ident = nwmHeaderIdentifier + request.header.length = uint32(unsafe.Sizeof(request.header)) + request.header.version = nwmCurrentVer + request.header.nwmType = nwmGlobalStatsType + request.header.options = 0x80000000 + + svcCall(EZBNMIF4, &argv[0], &dsa[0]) + + // outputDesc field is filled by EZBNMIF4 on success + if returnCode != 0 || request.header.outputDesc.offset == 0 { + return nil, errnoErr(EINVAL) + } + + // Check that EZBNMIF4 returned a nwmRecHeader + recHeader := (*nwmRecHeader)(unsafe.Pointer(&responseBuffer[request.header.outputDesc.offset])) + if recHeader.ident != nwmRecHeaderIdentifier { + return nil, errnoErr(EINVAL) + } + + // Parse nwmTriplets to get offsets of returned entries + var sections []*uint64 + var sectionDesc *nwmTriplet = (*nwmTriplet)(unsafe.Pointer(&responseBuffer[0])) + for i := uint32(0); i < uint32(recHeader.number); i++ { + offset := request.header.outputDesc.offset + uint32(unsafe.Sizeof(*recHeader)) + i*uint32(unsafe.Sizeof(*sectionDesc)) + sectionDesc = (*nwmTriplet)(unsafe.Pointer(&responseBuffer[offset])) + for j := uint32(0); j < sectionDesc.number; j++ { + offset = request.header.outputDesc.offset + sectionDesc.offset + j*sectionDesc.length + sections = append(sections, (*uint64)(unsafe.Pointer(&responseBuffer[offset]))) + } + } + + // Find nwmTCPStatsEntry in returned entries + var tcpStats *nwmTCPStatsEntry = nil + for _, ptr := range sections { + switch *ptr { + case nwmTCPStatsIdentifier: + if tcpStats != nil { + return nil, errnoErr(EINVAL) + } + tcpStats = (*nwmTCPStatsEntry)(unsafe.Pointer(ptr)) + case nwmIPStatsIdentifier: + case nwmIPGStatsIdentifier: + case nwmUDPStatsIdentifier: + case nwmICMPGStatsEntry: + case nwmICMPTStatsEntry: + default: + return nil, errnoErr(EINVAL) + } + } + if tcpStats == nil { + return nil, errnoErr(EINVAL) + } + + // GetConnectionDetail EZBNMIF4 call + responseBuffer = [4096]byte{0} + dsa = [18]uint64{0} + bufferAlet, reasonCode = 0, 0 + bufferLen, returnValue, returnCode = 4096, 0, 0 + nameptr := (*uint32)(unsafe.Pointer(uintptr(0x21c))) // Get jobname of current process + nameptr = (*uint32)(unsafe.Pointer(uintptr(*nameptr + 12))) + argv[0] = unsafe.Pointer(uintptr(*nameptr)) + + request.header.ident = nwmHeaderIdentifier + request.header.length = uint32(unsafe.Sizeof(request.header)) + request.header.version = nwmCurrentVer + request.header.nwmType = nwmTCPConnType + request.header.options = 0x80000000 + + request.filter.ident = nwmFilterIdentifier + + var localSockaddr RawSockaddrAny + socklen := _Socklen(SizeofSockaddrAny) + err := getsockname(fd, &localSockaddr, &socklen) + if err != nil { + return nil, errnoErr(EINVAL) + } + if localSockaddr.Addr.Family == AF_INET { + localSockaddr := (*RawSockaddrInet4)(unsafe.Pointer(&localSockaddr.Addr)) + localSockFilter := (*RawSockaddrInet4)(unsafe.Pointer(&request.filter.local[0])) + localSockFilter.Family = AF_INET + var i int + for i = 0; i < 4; i++ { + if localSockaddr.Addr[i] != 0 { + break + } + } + if i != 4 { + request.filter.flags |= nwmFilterLclAddrMask + for i = 0; i < 4; i++ { + localSockFilter.Addr[i] = localSockaddr.Addr[i] + } + } + if localSockaddr.Port != 0 { + request.filter.flags |= nwmFilterLclPortMask + localSockFilter.Port = localSockaddr.Port + } + } else if localSockaddr.Addr.Family == AF_INET6 { + localSockaddr := (*RawSockaddrInet6)(unsafe.Pointer(&localSockaddr.Addr)) + localSockFilter := (*RawSockaddrInet6)(unsafe.Pointer(&request.filter.local[0])) + localSockFilter.Family = AF_INET6 + var i int + for i = 0; i < 16; i++ { + if localSockaddr.Addr[i] != 0 { + break + } + } + if i != 16 { + request.filter.flags |= nwmFilterLclAddrMask + for i = 0; i < 16; i++ { + localSockFilter.Addr[i] = localSockaddr.Addr[i] + } + } + if localSockaddr.Port != 0 { + request.filter.flags |= nwmFilterLclPortMask + localSockFilter.Port = localSockaddr.Port + } + } + + svcCall(EZBNMIF4, &argv[0], &dsa[0]) + + // outputDesc field is filled by EZBNMIF4 on success + if returnCode != 0 || request.header.outputDesc.offset == 0 { + return nil, errnoErr(EINVAL) + } + + // Check that EZBNMIF4 returned a nwmConnEntry + conn := (*nwmConnEntry)(unsafe.Pointer(&responseBuffer[request.header.outputDesc.offset])) + if conn.ident != nwmTCPConnIdentifier { + return nil, errnoErr(EINVAL) + } + + // Copy data from the returned data structures into tcpInfo + // Stats from nwmConnEntry are specific to that connection. + // Stats from nwmTCPStatsEntry are global (to the interface?) + // Fields may not be an exact match. Some fields have no equivalent. + var tcpinfo TCPInfo + tcpinfo.State = uint8(conn.state) + tcpinfo.Ca_state = 0 // dummy + tcpinfo.Retransmits = uint8(tcpStats.retransSegs) + tcpinfo.Probes = uint8(tcpStats.outWinProbes) + tcpinfo.Backoff = 0 // dummy + tcpinfo.Options = 0 // dummy + tcpinfo.Rto = tcpStats.retransTimeouts + tcpinfo.Ato = tcpStats.outDelayAcks + tcpinfo.Snd_mss = conn.sendMSS + tcpinfo.Rcv_mss = conn.sendMSS // dummy + tcpinfo.Unacked = 0 // dummy + tcpinfo.Sacked = 0 // dummy + tcpinfo.Lost = 0 // dummy + tcpinfo.Retrans = conn.reXmtCount + tcpinfo.Fackets = 0 // dummy + tcpinfo.Last_data_sent = uint32(*(*uint64)(unsafe.Pointer(&conn.lastActivity[0]))) + tcpinfo.Last_ack_sent = uint32(*(*uint64)(unsafe.Pointer(&conn.outOldestTime[0]))) + tcpinfo.Last_data_recv = uint32(*(*uint64)(unsafe.Pointer(&conn.inOldestTime[0]))) + tcpinfo.Last_ack_recv = uint32(*(*uint64)(unsafe.Pointer(&conn.inOldestTime[0]))) + tcpinfo.Pmtu = conn.sendMSS // dummy, NWMIfRouteMtu is a candidate + tcpinfo.Rcv_ssthresh = conn.ssThresh + tcpinfo.Rtt = conn.roundTripTime + tcpinfo.Rttvar = conn.roundTripVar + tcpinfo.Snd_ssthresh = conn.ssThresh // dummy + tcpinfo.Snd_cwnd = conn.congestionWnd + tcpinfo.Advmss = conn.sendMSS // dummy + tcpinfo.Reordering = 0 // dummy + tcpinfo.Rcv_rtt = conn.roundTripTime // dummy + tcpinfo.Rcv_space = conn.sendMSS // dummy + tcpinfo.Total_retrans = conn.reXmtCount + + svcUnload(&svcNameTable[svc_EZBNMIF4][0], EZBNMIF4) + + return &tcpinfo, nil +} + +// GetsockoptString returns the string value of the socket option opt for the +// socket associated with fd at the given socket level. +func GetsockoptString(fd, level, opt int) (string, error) { + buf := make([]byte, 256) + vallen := _Socklen(len(buf)) + err := getsockopt(fd, level, opt, unsafe.Pointer(&buf[0]), &vallen) + if err != nil { + return "", err + } + + return string(buf[:vallen-1]), nil +} + +func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) { + var msg Msghdr + var rsa RawSockaddrAny + msg.Name = (*byte)(unsafe.Pointer(&rsa)) + msg.Namelen = SizeofSockaddrAny + var iov Iovec + if len(p) > 0 { + iov.Base = (*byte)(unsafe.Pointer(&p[0])) + iov.SetLen(len(p)) + } + var dummy byte + if len(oob) > 0 { + // receive at least one normal byte + if len(p) == 0 { + iov.Base = &dummy + iov.SetLen(1) + } + msg.Control = (*byte)(unsafe.Pointer(&oob[0])) + msg.SetControllen(len(oob)) + } + msg.Iov = &iov + msg.Iovlen = 1 + if n, err = recvmsg(fd, &msg, flags); err != nil { + return + } + oobn = int(msg.Controllen) + recvflags = int(msg.Flags) + // source address is only specified if the socket is unconnected + if rsa.Addr.Family != AF_UNSPEC { + // TODO(neeilan): Remove 0 arg added to get this compiling on z/OS + from, err = anyToSockaddr(0, &rsa) + } + return +} + +func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) { + _, err = SendmsgN(fd, p, oob, to, flags) + return +} + +func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) { + var ptr unsafe.Pointer + var salen _Socklen + if to != nil { + var err error + ptr, salen, err = to.sockaddr() + if err != nil { + return 0, err + } + } + var msg Msghdr + msg.Name = (*byte)(unsafe.Pointer(ptr)) + msg.Namelen = int32(salen) + var iov Iovec + if len(p) > 0 { + iov.Base = (*byte)(unsafe.Pointer(&p[0])) + iov.SetLen(len(p)) + } + var dummy byte + if len(oob) > 0 { + // send at least one normal byte + if len(p) == 0 { + iov.Base = &dummy + iov.SetLen(1) + } + msg.Control = (*byte)(unsafe.Pointer(&oob[0])) + msg.SetControllen(len(oob)) + } + msg.Iov = &iov + msg.Iovlen = 1 + if n, err = sendmsg(fd, &msg, flags); err != nil { + return 0, err + } + if len(oob) > 0 && len(p) == 0 { + n = 0 + } + return n, nil +} + +func Opendir(name string) (uintptr, error) { + p, err := BytePtrFromString(name) + if err != nil { + return 0, err + } + dir, _, e := syscall_syscall(SYS___OPENDIR_A, uintptr(unsafe.Pointer(p)), 0, 0) + runtime.KeepAlive(unsafe.Pointer(p)) + if e != 0 { + err = errnoErr(e) + } + return dir, err +} + +// clearsyscall.Errno resets the errno value to 0. +func clearErrno() + +func Readdir(dir uintptr) (*Dirent, error) { + var ent Dirent + var res uintptr + // __readdir_r_a returns errno at the end of the directory stream, rather than 0. + // Therefore to avoid false positives we clear errno before calling it. + + // TODO(neeilan): Commented this out to get sys/unix compiling on z/OS. Uncomment and fix. Error: "undefined: clearsyscall" + //clearsyscall.Errno() // TODO(mundaym): check pre-emption rules. + + e, _, _ := syscall_syscall(SYS___READDIR_R_A, dir, uintptr(unsafe.Pointer(&ent)), uintptr(unsafe.Pointer(&res))) + var err error + if e != 0 { + err = errnoErr(Errno(e)) + } + if res == 0 { + return nil, err + } + return &ent, err +} + +func Closedir(dir uintptr) error { + _, _, e := syscall_syscall(SYS_CLOSEDIR, dir, 0, 0) + if e != 0 { + return errnoErr(e) + } + return nil +} + +func Seekdir(dir uintptr, pos int) { + _, _, _ = syscall_syscall(SYS_SEEKDIR, dir, uintptr(pos), 0) +} + +func Telldir(dir uintptr) (int, error) { + p, _, e := syscall_syscall(SYS_TELLDIR, dir, 0, 0) + pos := int(p) + if pos == -1 { + return pos, errnoErr(e) + } + return pos, nil +} + +// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command. +func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error { + // struct flock is packed on z/OS. We can't emulate that in Go so + // instead we pack it here. + var flock [24]byte + *(*int16)(unsafe.Pointer(&flock[0])) = lk.Type + *(*int16)(unsafe.Pointer(&flock[2])) = lk.Whence + *(*int64)(unsafe.Pointer(&flock[4])) = lk.Start + *(*int64)(unsafe.Pointer(&flock[12])) = lk.Len + *(*int32)(unsafe.Pointer(&flock[20])) = lk.Pid + _, _, errno := syscall_syscall(SYS_FCNTL, fd, uintptr(cmd), uintptr(unsafe.Pointer(&flock))) + lk.Type = *(*int16)(unsafe.Pointer(&flock[0])) + lk.Whence = *(*int16)(unsafe.Pointer(&flock[2])) + lk.Start = *(*int64)(unsafe.Pointer(&flock[4])) + lk.Len = *(*int64)(unsafe.Pointer(&flock[12])) + lk.Pid = *(*int32)(unsafe.Pointer(&flock[20])) + if errno == 0 { + return nil + } + return errno +} + +func Flock(fd int, how int) error { + + var flock_type int16 + var fcntl_cmd int + + switch how { + case LOCK_SH | LOCK_NB: + flock_type = F_RDLCK + fcntl_cmd = F_SETLK + case LOCK_EX | LOCK_NB: + flock_type = F_WRLCK + fcntl_cmd = F_SETLK + case LOCK_EX: + flock_type = F_WRLCK + fcntl_cmd = F_SETLKW + case LOCK_UN: + flock_type = F_UNLCK + fcntl_cmd = F_SETLKW + default: + } + + flock := Flock_t{ + Type: int16(flock_type), + Whence: int16(0), + Start: int64(0), + Len: int64(0), + Pid: int32(Getppid()), + } + + err := FcntlFlock(uintptr(fd), fcntl_cmd, &flock) + return err +} + +func Mlock(b []byte) (err error) { + _, _, e1 := syscall_syscall(SYS___MLOCKALL, _BPX_NONSWAP, 0, 0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +func Mlock2(b []byte, flags int) (err error) { + _, _, e1 := syscall_syscall(SYS___MLOCKALL, _BPX_NONSWAP, 0, 0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +func Mlockall(flags int) (err error) { + _, _, e1 := syscall_syscall(SYS___MLOCKALL, _BPX_NONSWAP, 0, 0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +func Munlock(b []byte) (err error) { + _, _, e1 := syscall_syscall(SYS___MLOCKALL, _BPX_SWAP, 0, 0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +func Munlockall() (err error) { + _, _, e1 := syscall_syscall(SYS___MLOCKALL, _BPX_SWAP, 0, 0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +func ClockGettime(clockid int32, ts *Timespec) error { + + var ticks_per_sec uint32 = 100 //TODO(kenan): value is currently hardcoded; need sysconf() call otherwise + var nsec_per_sec int64 = 1000000000 + + if ts == nil { + return EFAULT + } + if clockid == CLOCK_REALTIME || clockid == CLOCK_MONOTONIC { + var nanotime int64 = runtime.Nanotime1() + ts.Sec = nanotime / nsec_per_sec + ts.Nsec = nanotime % nsec_per_sec + } else if clockid == CLOCK_PROCESS_CPUTIME_ID || clockid == CLOCK_THREAD_CPUTIME_ID { + var tm Tms + _, err := Times(&tm) + if err != nil { + return EFAULT + } + ts.Sec = int64(tm.Utime / ticks_per_sec) + ts.Nsec = int64(tm.Utime) * nsec_per_sec / int64(ticks_per_sec) + } else { + return EINVAL + } + return nil +} + +func Statfs(path string, stat *Statfs_t) (err error) { + fd, err := open(path, O_RDONLY, 0) + defer Close(fd) + if err != nil { + return err + } + return Fstatfs(fd, stat) +} + +var ( + Stdin = 0 + Stdout = 1 + Stderr = 2 +) + +// Do the interface allocations only once for common +// Errno values. +var ( + errEAGAIN error = syscall.EAGAIN + errEINVAL error = syscall.EINVAL + errENOENT error = syscall.ENOENT +) + +var ( + signalNameMapOnce sync.Once + signalNameMap map[string]syscall.Signal +) + +// errnoErr returns common boxed Errno values, to prevent +// allocations at runtime. +func errnoErr(e Errno) error { + switch e { + case 0: + return nil + case EAGAIN: + return errEAGAIN + case EINVAL: + return errEINVAL + case ENOENT: + return errENOENT + } + return e +} + +// ErrnoName returns the error name for error number e. +func ErrnoName(e Errno) string { + i := sort.Search(len(errorList), func(i int) bool { + return errorList[i].num >= e + }) + if i < len(errorList) && errorList[i].num == e { + return errorList[i].name + } + return "" +} + +// SignalName returns the signal name for signal number s. +func SignalName(s syscall.Signal) string { + i := sort.Search(len(signalList), func(i int) bool { + return signalList[i].num >= s + }) + if i < len(signalList) && signalList[i].num == s { + return signalList[i].name + } + return "" +} + +// SignalNum returns the syscall.Signal for signal named s, +// or 0 if a signal with such name is not found. +// The signal name should start with "SIG". +func SignalNum(s string) syscall.Signal { + signalNameMapOnce.Do(func() { + signalNameMap = make(map[string]syscall.Signal, len(signalList)) + for _, signal := range signalList { + signalNameMap[signal.name] = signal.num + } + }) + return signalNameMap[s] +} + +// clen returns the index of the first NULL byte in n or len(n) if n contains no NULL byte. +func clen(n []byte) int { + i := bytes.IndexByte(n, 0) + if i == -1 { + i = len(n) + } + return i +} + +// Mmap manager, for use by operating system-specific implementations. + +type mmapper struct { + sync.Mutex + active map[*byte][]byte // active mappings; key is last byte in mapping + mmap func(addr, length uintptr, prot, flags, fd int, offset int64) (uintptr, error) + munmap func(addr uintptr, length uintptr) error +} + +func (m *mmapper) Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) { + if length <= 0 { + return nil, EINVAL + } + + // Map the requested memory. + addr, errno := m.mmap(0, uintptr(length), prot, flags, fd, offset) + if errno != nil { + return nil, errno + } + + // Slice memory layout + var sl = struct { + addr uintptr + len int + cap int + }{addr, length, length} + + // Use unsafe to turn sl into a []byte. + b := *(*[]byte)(unsafe.Pointer(&sl)) + + // Register mapping in m and return it. + p := &b[cap(b)-1] + m.Lock() + defer m.Unlock() + m.active[p] = b + return b, nil +} + +func (m *mmapper) Munmap(data []byte) (err error) { + if len(data) == 0 || len(data) != cap(data) { + return EINVAL + } + + // Find the base of the mapping. + p := &data[cap(data)-1] + m.Lock() + defer m.Unlock() + b := m.active[p] + if b == nil || &b[0] != &data[0] { + return EINVAL + } + + // Unmap the memory and update m. + if errno := m.munmap(uintptr(unsafe.Pointer(&b[0])), uintptr(len(b))); errno != nil { + return errno + } + delete(m.active, p) + return nil +} + +func Read(fd int, p []byte) (n int, err error) { + n, err = read(fd, p) + if raceenabled { + if n > 0 { + raceWriteRange(unsafe.Pointer(&p[0]), n) + } + if err == nil { + raceAcquire(unsafe.Pointer(&ioSync)) + } + } + return +} + +func Write(fd int, p []byte) (n int, err error) { + if raceenabled { + raceReleaseMerge(unsafe.Pointer(&ioSync)) + } + n, err = write(fd, p) + if raceenabled && n > 0 { + raceReadRange(unsafe.Pointer(&p[0]), n) + } + return +} + +// For testing: clients can set this flag to force +// creation of IPv6 sockets to return EAFNOSUPPORT. +var SocketDisableIPv6 bool + +// Sockaddr represents a socket address. +type Sockaddr interface { + sockaddr() (ptr unsafe.Pointer, len _Socklen, err error) // lowercase; only we can define Sockaddrs +} + +// SockaddrInet4 implements the Sockaddr interface for AF_INET type sockets. +type SockaddrInet4 struct { + Port int + Addr [4]byte + raw RawSockaddrInet4 +} + +// SockaddrInet6 implements the Sockaddr interface for AF_INET6 type sockets. +type SockaddrInet6 struct { + Port int + ZoneId uint32 + Addr [16]byte + raw RawSockaddrInet6 +} + +// SockaddrUnix implements the Sockaddr interface for AF_UNIX type sockets. +type SockaddrUnix struct { + Name string + raw RawSockaddrUnix +} + +func Bind(fd int, sa Sockaddr) (err error) { + ptr, n, err := sa.sockaddr() + if err != nil { + return err + } + return bind(fd, ptr, n) +} + +func Connect(fd int, sa Sockaddr) (err error) { + ptr, n, err := sa.sockaddr() + if err != nil { + return err + } + return connect(fd, ptr, n) +} + +func Getpeername(fd int) (sa Sockaddr, err error) { + var rsa RawSockaddrAny + var len _Socklen = SizeofSockaddrAny + if err = getpeername(fd, &rsa, &len); err != nil { + return + } + return anyToSockaddr(fd, &rsa) +} + +func GetsockoptByte(fd, level, opt int) (value byte, err error) { + var n byte + vallen := _Socklen(1) + err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen) + return n, err +} + +func GetsockoptInt(fd, level, opt int) (value int, err error) { + var n int32 + vallen := _Socklen(4) + err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen) + return int(n), err +} + +func GetsockoptInet4Addr(fd, level, opt int) (value [4]byte, err error) { + vallen := _Socklen(4) + err = getsockopt(fd, level, opt, unsafe.Pointer(&value[0]), &vallen) + return value, err +} + +func GetsockoptIPMreq(fd, level, opt int) (*IPMreq, error) { + var value IPMreq + vallen := _Socklen(SizeofIPMreq) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func GetsockoptIPv6Mreq(fd, level, opt int) (*IPv6Mreq, error) { + var value IPv6Mreq + vallen := _Socklen(SizeofIPv6Mreq) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func GetsockoptIPv6MTUInfo(fd, level, opt int) (*IPv6MTUInfo, error) { + var value IPv6MTUInfo + vallen := _Socklen(SizeofIPv6MTUInfo) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func GetsockoptICMPv6Filter(fd, level, opt int) (*ICMPv6Filter, error) { + var value ICMPv6Filter + vallen := _Socklen(SizeofICMPv6Filter) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func GetsockoptLinger(fd, level, opt int) (*Linger, error) { + var linger Linger + vallen := _Socklen(SizeofLinger) + err := getsockopt(fd, level, opt, unsafe.Pointer(&linger), &vallen) + return &linger, err +} + +func GetsockoptTimeval(fd, level, opt int) (*Timeval, error) { + var tv Timeval + vallen := _Socklen(unsafe.Sizeof(tv)) + err := getsockopt(fd, level, opt, unsafe.Pointer(&tv), &vallen) + return &tv, err +} + +func GetsockoptUint64(fd, level, opt int) (value uint64, err error) { + var n uint64 + vallen := _Socklen(8) + err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen) + return n, err +} + +func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) { + var rsa RawSockaddrAny + var len _Socklen = SizeofSockaddrAny + if n, err = recvfrom(fd, p, flags, &rsa, &len); err != nil { + return + } + if rsa.Addr.Family != AF_UNSPEC { + from, err = anyToSockaddr(fd, &rsa) + } + return +} + +func Sendto(fd int, p []byte, flags int, to Sockaddr) (err error) { + ptr, n, err := to.sockaddr() + if err != nil { + return err + } + return sendto(fd, p, flags, ptr, n) +} + +func SetsockoptByte(fd, level, opt int, value byte) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(&value), 1) +} + +func SetsockoptInt(fd, level, opt int, value int) (err error) { + var n = int32(value) + return setsockopt(fd, level, opt, unsafe.Pointer(&n), 4) +} + +func SetsockoptInet4Addr(fd, level, opt int, value [4]byte) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(&value[0]), 4) +} + +func SetsockoptIPMreq(fd, level, opt int, mreq *IPMreq) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(mreq), SizeofIPMreq) +} + +func SetsockoptIPv6Mreq(fd, level, opt int, mreq *IPv6Mreq) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(mreq), SizeofIPv6Mreq) +} + +func SetsockoptICMPv6Filter(fd, level, opt int, filter *ICMPv6Filter) error { + return setsockopt(fd, level, opt, unsafe.Pointer(filter), SizeofICMPv6Filter) +} + +func SetsockoptLinger(fd, level, opt int, l *Linger) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(l), SizeofLinger) +} + +func SetsockoptString(fd, level, opt int, s string) (err error) { + var p unsafe.Pointer + if len(s) > 0 { + p = unsafe.Pointer(&[]byte(s)[0]) + } + return setsockopt(fd, level, opt, p, uintptr(len(s))) +} + +func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(tv), unsafe.Sizeof(*tv)) +} + +func SetsockoptUint64(fd, level, opt int, value uint64) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(&value), 8) +} + +func Socket(domain, typ, proto int) (fd int, err error) { + if domain == AF_INET6 && SocketDisableIPv6 { + return -1, EAFNOSUPPORT + } + fd, err = socket(domain, typ, proto) + return +} + +func Socketpair(domain, typ, proto int) (fd [2]int, err error) { + var fdx [2]int32 + err = socketpair(domain, typ, proto, &fdx) + if err == nil { + fd[0] = int(fdx[0]) + fd[1] = int(fdx[1]) + } + return +} + +var ioSync int64 + +func CloseOnExec(fd int) { fcntl(fd, F_SETFD, FD_CLOEXEC) } + +func SetNonblock(fd int, nonblocking bool) (err error) { + flag, err := fcntl(fd, F_GETFL, 0) + if err != nil { + return err + } + if nonblocking { + flag |= O_NONBLOCK + } else { + flag &= ^O_NONBLOCK + } + _, err = fcntl(fd, F_SETFL, flag) + return err +} + +// Exec calls execve(2), which replaces the calling executable in the process +// tree. argv0 should be the full path to an executable ("/bin/ls") and the +// executable name should also be the first argument in argv (["ls", "-l"]). +// envv are the environment variables that should be passed to the new +// process (["USER=go", "PWD=/tmp"]). +func Exec(argv0 string, argv []string, envv []string) error { + return syscall.Exec(argv0, argv, envv) +} + +func Mount(source string, target string, fstype string, flags uintptr, data string) (err error) { + if needspace := 8 - len(fstype); needspace <= 0 { + fstype = fstype[:8] + } else { + fstype += " "[:needspace] + } + return mount_LE(target, source, fstype, uint32(flags), int32(len(data)), data) +} + +func Unmount(name string, mtm int) (err error) { + // mountpoint is always a full path and starts with a '/' + // check if input string is not a mountpoint but a filesystem name + if name[0] != '/' { + return unmount(name, mtm) + } + // treat name as mountpoint + b2s := func(arr []byte) string { + nulli := bytes.IndexByte(arr, 0) + if nulli == -1 { + return string(arr) + } else { + return string(arr[:nulli]) + } + } + var buffer struct { + header W_Mnth + fsinfo [64]W_Mntent + } + fsCount, err := W_Getmntent_A((*byte)(unsafe.Pointer(&buffer)), int(unsafe.Sizeof(buffer))) + if err != nil { + return err + } + if fsCount == 0 { + return EINVAL + } + for i := 0; i < fsCount; i++ { + if b2s(buffer.fsinfo[i].Mountpoint[:]) == name { + err = unmount(b2s(buffer.fsinfo[i].Fsname[:]), mtm) + break + } + } + return err +} + +func fdToPath(dirfd int) (path string, err error) { + var buffer [1024]byte + // w_ctrl() + ret := runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0x1a2<<4, + []uintptr{uintptr(dirfd), 17, 1024, uintptr(unsafe.Pointer(&buffer[0]))}) + if ret == 0 { + zb := bytes.IndexByte(buffer[:], 0) + if zb == -1 { + zb = len(buffer) + } + // __e2a_l() + runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0x6e3<<4, + []uintptr{uintptr(unsafe.Pointer(&buffer[0])), uintptr(zb)}) + return string(buffer[:zb]), nil + } + // __errno() + errno := int(*(*int32)(unsafe.Pointer(runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0x156<<4, + []uintptr{})))) + // __errno2() + errno2 := int(runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0x157<<4, + []uintptr{})) + // strerror_r() + ret = runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0xb35<<4, + []uintptr{uintptr(errno), uintptr(unsafe.Pointer(&buffer[0])), 1024}) + if ret == 0 { + zb := bytes.IndexByte(buffer[:], 0) + if zb == -1 { + zb = len(buffer) + } + return "", fmt.Errorf("%s (errno2=0x%x)", buffer[:zb], errno2) + } else { + return "", fmt.Errorf("fdToPath errno %d (errno2=0x%x)", errno, errno2) + } +} + +func readdir_full(dir uintptr, path string) (*Dirent, error) { + var ent direntLE + var res uintptr + // __readdir_r_a returns errno at the end of the directory stream, rather than 0. + // Therefore to avoid false positives we clear errno before calling it. + + e, _, _ := syscall_syscall(SYS___READDIR_R_A, dir, uintptr(unsafe.Pointer(&ent)), uintptr(unsafe.Pointer(&res))) + var err error + if e != 0 { + err = errnoErr(Errno(e)) + } + if res == 0 { + return nil, err + } + var d Dirent + d.Ino = uint64(ent.Ino) + offset, err := Telldir(dir) + if err != nil { + return nil, err + } + d.Off = int64(offset) + d.Reclen = ent.Reclen + s := string(bytes.Split(ent.Name[:], []byte{0})[0]) + var st Stat_t + path = path + "/" + s + err = Lstat(path, &st) + if err != nil { + return nil, err + } + d.Type = uint8(st.Mode >> 24) + copy(d.Name[:], s) + return &d, err +} + +func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { + // Simulation of Getdirentries port from the Darwin implementation. + // COMMENTS FROM DARWIN: + // 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. + + // Get path from fd to avoid unavailable call (fdopendir) + path, err := fdToPath(fd) + if err != nil { + return 0, err + } + d, err := Opendir(path) + if err != nil { + return 0, err + } + defer Closedir(d) + + for { + entry, err := readdir_full(d, path) + if err != nil { + return n, err + } + if entry == nil { + break + } + 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. + var s []byte + hdr := (*unsafeheader.Slice)(unsafe.Pointer(&s)) + hdr.Data = unsafe.Pointer(entry) + hdr.Cap = reclen + hdr.Len = reclen + copy(buf, s) + + buf = buf[reclen:] + n += reclen + } + + return n, nil +} + +func ReadDirent(fd int, buf []byte) (n int, err error) { + var base = (*uintptr)(unsafe.Pointer(new(uint64))) + return Getdirentries(fd, buf, base) +} + +func direntIno(buf []byte) (uint64, bool) { + return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino)) +} + +func direntReclen(buf []byte) (uint64, bool) { + return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) +} + +func direntNamlen(buf []byte) (uint64, bool) { + reclen, ok := direntReclen(buf) + if !ok { + return 0, false + } + return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true +} diff --git a/unix/dirent.go b/unix/dirent.go index e74e5eaa3b..2499f977b0 100644 --- a/unix/dirent.go +++ b/unix/dirent.go @@ -2,8 +2,8 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris -// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris +//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos +// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos package unix diff --git a/unix/dirent_test.go b/unix/dirent_test.go index cbe12b0aa6..89abf70cae 100644 --- a/unix/dirent_test.go +++ b/unix/dirent_test.go @@ -2,8 +2,8 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris -// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris +//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos +// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos package unix_test @@ -45,6 +45,10 @@ func TestDirent(t *testing.T) { } buf := bytes.Repeat([]byte("DEADBEAF"), direntBufSize/8) + if runtime.GOOS == "zos" { + buf = bytes.Repeat([]byte("DEADBEAF"), (direntBufSize*2)/8) + } + fd, err := unix.Open(d, unix.O_RDONLY, 0) if err != nil { t.Fatalf("Open: %v", err) diff --git a/unix/getdirentries_test.go b/unix/getdirentries_test.go index 592c0e6af0..6f78e4964c 100644 --- a/unix/getdirentries_test.go +++ b/unix/getdirentries_test.go @@ -2,8 +2,8 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build darwin || dragonfly || freebsd || openbsd || netbsd -// +build darwin dragonfly freebsd openbsd netbsd +//go:build darwin || dragonfly || freebsd || openbsd || netbsd || zos +// +build darwin dragonfly freebsd openbsd netbsd zos package unix_test diff --git a/unix/syscall_zos_s390x.go b/unix/syscall_zos_s390x.go index f8616f454e..e362dd1472 100644 --- a/unix/syscall_zos_s390x.go +++ b/unix/syscall_zos_s390x.go @@ -9,11 +9,15 @@ package unix import ( "bytes" + "fmt" "runtime" "sort" + "strings" "sync" "syscall" "unsafe" + + "golang.org/x/sys/internal/unsafeheader" ) const ( @@ -55,7 +59,13 @@ func (d *Dirent) NameString() string { if d == nil { return "" } - return string(d.Name[:d.Namlen]) + s := string(d.Name[:]) + idx := strings.Index(s, string(rune(0))) + if idx == -1 { + return s + } else { + return s[:idx] + } } func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) { @@ -1210,24 +1220,12 @@ func Opendir(name string) (uintptr, error) { // clearsyscall.Errno resets the errno value to 0. func clearErrno() -func Readdir(dir uintptr) (*Dirent, error) { - var ent Dirent - var res uintptr - // __readdir_r_a returns errno at the end of the directory stream, rather than 0. - // Therefore to avoid false positives we clear errno before calling it. - - // TODO(neeilan): Commented this out to get sys/unix compiling on z/OS. Uncomment and fix. Error: "undefined: clearsyscall" - //clearsyscall.Errno() // TODO(mundaym): check pre-emption rules. - - e, _, _ := syscall_syscall(SYS___READDIR_R_A, dir, uintptr(unsafe.Pointer(&ent)), uintptr(unsafe.Pointer(&res))) - var err error - if e != 0 { - err = errnoErr(Errno(e)) - } - if res == 0 { - return nil, err +func Readdir_r(dirp uintptr, entry *direntLE, result **direntLE) (err error) { + r0, _, e1 := syscall_syscall(SYS___READDIR_R_A, dirp, uintptr(unsafe.Pointer(entry)), uintptr(unsafe.Pointer(result))) + if int64(r0) == -1 { + err = errnoErr(Errno(e1)) } - return &ent, err + return } func Closedir(dir uintptr) error { @@ -1821,3 +1819,161 @@ func Unmount(name string, mtm int) (err error) { } return err } + +func fdToPath(dirfd int) (path string, err error) { + var buffer [1024]byte + // w_ctrl() + ret := runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0x1a2<<4, + []uintptr{uintptr(dirfd), 17, 1024, uintptr(unsafe.Pointer(&buffer[0]))}) + if ret == 0 { + zb := bytes.IndexByte(buffer[:], 0) + if zb == -1 { + zb = len(buffer) + } + // __e2a_l() + runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0x6e3<<4, + []uintptr{uintptr(unsafe.Pointer(&buffer[0])), uintptr(zb)}) + return string(buffer[:zb]), nil + } + // __errno() + errno := int(*(*int32)(unsafe.Pointer(runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0x156<<4, + []uintptr{})))) + // __errno2() + errno2 := int(runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0x157<<4, + []uintptr{})) + // strerror_r() + ret = runtime.CallLeFuncByPtr(runtime.XplinkLibvec+0xb35<<4, + []uintptr{uintptr(errno), uintptr(unsafe.Pointer(&buffer[0])), 1024}) + if ret == 0 { + zb := bytes.IndexByte(buffer[:], 0) + if zb == -1 { + zb = len(buffer) + } + return "", fmt.Errorf("%s (errno2=0x%x)", buffer[:zb], errno2) + } else { + return "", fmt.Errorf("fdToPath errno %d (errno2=0x%x)", errno, errno2) + } +} + +func direntLeToDirentUnix(dirent *direntLE, dir uintptr, path string) (Dirent, error) { + var d Dirent + + d.Ino = uint64(dirent.Ino) + offset, err := Telldir(dir) + if err != nil { + return d, err + } + + d.Off = int64(offset) + d.Reclen = dirent.Reclen + s := string(bytes.Split(dirent.Name[:], []byte{0})[0]) + var st Stat_t + path = path + "/" + s + err = Lstat(path, &st) + if err != nil { + return d, err + } + + d.Type = uint8(st.Mode >> 24) + copy(d.Name[:], s) + return d, err +} + +func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { + // Simulation of Getdirentries port from the Darwin implementation. + // COMMENTS FROM DARWIN: + // 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 + } + + // Get path from fd to avoid unavailable call (fdopendir) + path, err := fdToPath(fd) + if err != nil { + return 0, err + } + d, err := Opendir(path) + if err != nil { + return 0, err + } + defer Closedir(d) + + var cnt int64 + for { + var entryLE direntLE + var entrypLE *direntLE + e := Readdir_r(d, &entryLE, &entrypLE) + if e != nil { + return n, e + } + if entrypLE == nil { + break + } + if skip > 0 { + skip-- + cnt++ + continue + } + + // Dirent on zos has a different structure + entry, e := direntLeToDirentUnix(&entryLE, d, path) + if e != nil { + return n, e + } + + 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. + var s []byte + hdr := (*unsafeheader.Slice)(unsafe.Pointer(&s)) + hdr.Data = unsafe.Pointer(&entry) + hdr.Cap = reclen + hdr.Len = 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 +} + +func ReadDirent(fd int, buf []byte) (n int, err error) { + var base = (*uintptr)(unsafe.Pointer(new(uint64))) + return Getdirentries(fd, buf, base) +} + +func direntIno(buf []byte) (uint64, bool) { + return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino)) +} + +func direntReclen(buf []byte) (uint64, bool) { + return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) +} + +func direntNamlen(buf []byte) (uint64, bool) { + reclen, ok := direntReclen(buf) + if !ok { + return 0, false + } + return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true +} diff --git a/unix/syscall_zos_test.go b/unix/syscall_zos_test.go index 42ae5ba89c..f0f4c68e22 100644 --- a/unix/syscall_zos_test.go +++ b/unix/syscall_zos_test.go @@ -861,3 +861,55 @@ func TestSelect(t *testing.T) { break } } + +func TestReadDirent(t *testing.T) { + // Create temporary directory and files + tempDir, err := ioutil.TempDir("", "TestReadDirent") + if err != nil { + t.Fatalf("TempDir: %v", err) + } + defer os.RemoveAll(tempDir) + _, err = ioutil.TempFile(tempDir, "ReadDirent_test_file") + if err != nil { + t.Fatalf("TempFile: %v", err) + } + _, err = ioutil.TempFile(tempDir, "ReadDirent_test_file") + if err != nil { + t.Fatalf("TempFile: %v", err) + } + + tempSubDir, err := ioutil.TempDir(tempDir, "ReadDirent_SubDir") + if err != nil { + t.Fatalf("TempDir: %v", err) + } + _, err = ioutil.TempFile(tempSubDir, "ReadDirent_subDir_test_file") + if err != nil { + t.Fatalf("TempFile: %v", err) + } + + // Get fd of tempDir + dir, err := os.Open(tempDir) + if err != nil { + t.Fatalf("Open: %v", err) + } + fd := int(dir.Fd()) + + // Run Getdirentries + buf := make([]byte, 2048) + n, err := unix.ReadDirent(fd, buf) + if err != nil { + t.Fatalf("ReadDirent: %v", err) + } + if n == 0 { + t.Fatalf("ReadDirent: 0 bytes read") + } + + names := make([]string, 0) + consumed, count, _ := unix.ParseDirent(buf, 100, names) + if consumed == 0 { + t.Fatalf("ParseDirent: consumed 0 bytes") + } + if count != 3 { + t.Fatalf("ParseDirent: only recorded %d entries, expected 3", count) + } +} diff --git a/unix/zerrors_zos_s390x.go b/unix/zerrors_zos_s390x.go index fc7d0506f6..84cf3049b1 100644 --- a/unix/zerrors_zos_s390x.go +++ b/unix/zerrors_zos_s390x.go @@ -377,6 +377,15 @@ const ( S_IFSHARELIB = 0x00000010 S_IFMT = 0xFF000000 S_IFMST = 0x00FF0000 + DT_BLK = 0x6 + DT_CHR = 0x2 + DT_DIR = 0x1 + DT_FIFO = 0x4 + DT_LNK = 0x5 + DT_REG = 0x3 + DT_SOCK = 0x7 + DT_UNKNOWN = 0x0 + DT_WHT = 0xe TCP_KEEPALIVE = 0x8 TCP_NODELAY = 0x1 TCP_INFO = 0xb diff --git a/unix/ztypes_zos_s390x.go b/unix/ztypes_zos_s390x.go index 4ab638cb94..aec1efcb30 100644 --- a/unix/ztypes_zos_s390x.go +++ b/unix/ztypes_zos_s390x.go @@ -339,7 +339,7 @@ type Statfs_t struct { Flags uint64 } -type Dirent struct { +type direntLE struct { Reclen uint16 Namlen uint16 Ino uint32 @@ -347,6 +347,15 @@ type Dirent struct { Name [256]byte } +type Dirent struct { + Ino uint64 + Off int64 + Reclen uint16 + Type uint8 + Name [256]uint8 + _ [5]byte +} + type FdSet struct { Bits [64]int32 } diff --git a/zerrors_zos_s390x.go b/zerrors_zos_s390x.go new file mode 100644 index 0000000000..84cf3049b1 --- /dev/null +++ b/zerrors_zos_s390x.go @@ -0,0 +1,869 @@ +// Copyright 2020 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. + +//go:build zos && s390x +// +build zos,s390x + +// Hand edited based on zerrors_linux_s390x.go +// TODO: auto-generate. + +package unix + +const ( + BRKINT = 0x0001 + CLOCK_MONOTONIC = 0x1 + CLOCK_PROCESS_CPUTIME_ID = 0x2 + CLOCK_REALTIME = 0x0 + CLOCK_THREAD_CPUTIME_ID = 0x3 + CS8 = 0x0030 + CSIZE = 0x0030 + ECHO = 0x00000008 + ECHONL = 0x00000001 + FD_CLOEXEC = 0x01 + FD_CLOFORK = 0x02 + FNDELAY = 0x04 + F_CLOSFD = 9 + F_CONTROL_CVT = 13 + F_DUPFD = 0 + F_DUPFD2 = 8 + F_GETFD = 1 + F_GETFL = 259 + F_GETLK = 5 + F_GETOWN = 10 + F_OK = 0x0 + F_RDLCK = 1 + F_SETFD = 2 + F_SETFL = 4 + F_SETLK = 6 + F_SETLKW = 7 + F_SETOWN = 11 + F_SETTAG = 12 + F_UNLCK = 3 + F_WRLCK = 2 + FSTYPE_ZFS = 0xe9 //"Z" + FSTYPE_HFS = 0xc8 //"H" + FSTYPE_NFS = 0xd5 //"N" + FSTYPE_TFS = 0xe3 //"T" + FSTYPE_AUTOMOUNT = 0xc1 //"A" + IP6F_MORE_FRAG = 0x0001 + IP6F_OFF_MASK = 0xfff8 + IP6F_RESERVED_MASK = 0x0006 + IP6OPT_JUMBO = 0xc2 + IP6OPT_JUMBO_LEN = 6 + IP6OPT_MUTABLE = 0x20 + IP6OPT_NSAP_ADDR = 0xc3 + IP6OPT_PAD1 = 0x00 + IP6OPT_PADN = 0x01 + IP6OPT_ROUTER_ALERT = 0x05 + IP6OPT_TUNNEL_LIMIT = 0x04 + IP6OPT_TYPE_DISCARD = 0x40 + IP6OPT_TYPE_FORCEICMP = 0x80 + IP6OPT_TYPE_ICMP = 0xc0 + IP6OPT_TYPE_SKIP = 0x00 + IP6_ALERT_AN = 0x0002 + IP6_ALERT_MLD = 0x0000 + IP6_ALERT_RSVP = 0x0001 + IPPORT_RESERVED = 1024 + IPPORT_USERRESERVED = 5000 + IPPROTO_AH = 51 + SOL_AH = 51 + IPPROTO_DSTOPTS = 60 + SOL_DSTOPTS = 60 + IPPROTO_EGP = 8 + SOL_EGP = 8 + IPPROTO_ESP = 50 + SOL_ESP = 50 + IPPROTO_FRAGMENT = 44 + SOL_FRAGMENT = 44 + IPPROTO_GGP = 2 + SOL_GGP = 2 + IPPROTO_HOPOPTS = 0 + SOL_HOPOPTS = 0 + IPPROTO_ICMP = 1 + SOL_ICMP = 1 + IPPROTO_ICMPV6 = 58 + SOL_ICMPV6 = 58 + IPPROTO_IDP = 22 + SOL_IDP = 22 + IPPROTO_IP = 0 + SOL_IP = 0 + IPPROTO_IPV6 = 41 + SOL_IPV6 = 41 + IPPROTO_MAX = 256 + SOL_MAX = 256 + IPPROTO_NONE = 59 + SOL_NONE = 59 + IPPROTO_PUP = 12 + SOL_PUP = 12 + IPPROTO_RAW = 255 + SOL_RAW = 255 + IPPROTO_ROUTING = 43 + SOL_ROUTING = 43 + IPPROTO_TCP = 6 + SOL_TCP = 6 + IPPROTO_UDP = 17 + SOL_UDP = 17 + IPV6_ADDR_PREFERENCES = 32 + IPV6_CHECKSUM = 19 + IPV6_DONTFRAG = 29 + IPV6_DSTOPTS = 23 + IPV6_HOPLIMIT = 11 + IPV6_HOPOPTS = 22 + IPV6_JOIN_GROUP = 5 + IPV6_LEAVE_GROUP = 6 + IPV6_MULTICAST_HOPS = 9 + IPV6_MULTICAST_IF = 7 + IPV6_MULTICAST_LOOP = 4 + IPV6_NEXTHOP = 20 + IPV6_PATHMTU = 12 + IPV6_PKTINFO = 13 + IPV6_PREFER_SRC_CGA = 0x10 + IPV6_PREFER_SRC_COA = 0x02 + IPV6_PREFER_SRC_HOME = 0x01 + IPV6_PREFER_SRC_NONCGA = 0x20 + IPV6_PREFER_SRC_PUBLIC = 0x08 + IPV6_PREFER_SRC_TMP = 0x04 + IPV6_RECVDSTOPTS = 28 + IPV6_RECVHOPLIMIT = 14 + IPV6_RECVHOPOPTS = 26 + IPV6_RECVPATHMTU = 16 + IPV6_RECVPKTINFO = 15 + IPV6_RECVRTHDR = 25 + IPV6_RECVTCLASS = 31 + IPV6_RTHDR = 21 + IPV6_RTHDRDSTOPTS = 24 + IPV6_RTHDR_TYPE_0 = 0 + IPV6_TCLASS = 30 + IPV6_UNICAST_HOPS = 3 + IPV6_USE_MIN_MTU = 18 + IPV6_V6ONLY = 10 + IP_ADD_MEMBERSHIP = 5 + IP_ADD_SOURCE_MEMBERSHIP = 12 + IP_BLOCK_SOURCE = 10 + IP_DEFAULT_MULTICAST_LOOP = 1 + IP_DEFAULT_MULTICAST_TTL = 1 + IP_DROP_MEMBERSHIP = 6 + IP_DROP_SOURCE_MEMBERSHIP = 13 + IP_MAX_MEMBERSHIPS = 20 + IP_MULTICAST_IF = 7 + IP_MULTICAST_LOOP = 4 + IP_MULTICAST_TTL = 3 + IP_OPTIONS = 1 + IP_PKTINFO = 101 + IP_RECVPKTINFO = 102 + IP_TOS = 2 + IP_TTL = 3 + IP_UNBLOCK_SOURCE = 11 + ICANON = 0x0010 + ICMP6_FILTER = 0x26 + ICRNL = 0x0002 + IEXTEN = 0x0020 + IGNBRK = 0x0004 + IGNCR = 0x0008 + INLCR = 0x0020 + ISIG = 0x0040 + ISTRIP = 0x0080 + IXON = 0x0200 + IXOFF = 0x0100 + LOCK_SH = 0x1 // Not exist on zOS + LOCK_EX = 0x2 // Not exist on zOS + LOCK_NB = 0x4 // Not exist on zOS + LOCK_UN = 0x8 // Not exist on zOS + POLLIN = 0x0003 + POLLOUT = 0x0004 + POLLPRI = 0x0010 + POLLERR = 0x0020 + POLLHUP = 0x0040 + POLLNVAL = 0x0080 + PROT_READ = 0x1 // mmap - page can be read + PROT_WRITE = 0x2 // page can be written + PROT_NONE = 0x4 // can't be accessed + PROT_EXEC = 0x8 // can be executed + MAP_PRIVATE = 0x1 // changes are private + MAP_SHARED = 0x2 // changes are shared + MAP_FIXED = 0x4 // place exactly + MCAST_JOIN_GROUP = 40 + MCAST_LEAVE_GROUP = 41 + MCAST_JOIN_SOURCE_GROUP = 42 + MCAST_LEAVE_SOURCE_GROUP = 43 + MCAST_BLOCK_SOURCE = 44 + MCAST_UNBLOCK_SOURCE = 45 + MS_SYNC = 0x1 // msync - synchronous writes + MS_ASYNC = 0x2 // asynchronous writes + MS_INVALIDATE = 0x4 // invalidate mappings + MTM_RDONLY = 0x80000000 + MTM_RDWR = 0x40000000 + MTM_UMOUNT = 0x10000000 + MTM_IMMED = 0x08000000 + MTM_FORCE = 0x04000000 + MTM_DRAIN = 0x02000000 + MTM_RESET = 0x01000000 + MTM_SAMEMODE = 0x00100000 + MTM_UNQSEFORCE = 0x00040000 + MTM_NOSUID = 0x00000400 + MTM_SYNCHONLY = 0x00000200 + MTM_REMOUNT = 0x00000100 + MTM_NOSECURITY = 0x00000080 + NFDBITS = 0x20 + O_ACCMODE = 0x03 + O_APPEND = 0x08 + O_ASYNCSIG = 0x0200 + O_CREAT = 0x80 + O_EXCL = 0x40 + O_GETFL = 0x0F + O_LARGEFILE = 0x0400 + O_NONBLOCK = 0x04 + O_RDONLY = 0x02 + O_RDWR = 0x03 + O_SYNC = 0x0100 + O_TRUNC = 0x10 + O_WRONLY = 0x01 + O_NOCTTY = 0x20 + OPOST = 0x0001 + ONLCR = 0x0004 + PARENB = 0x0200 + PARMRK = 0x0400 + QUERYCVT = 3 + RUSAGE_CHILDREN = -0x1 + RUSAGE_SELF = 0x0 // RUSAGE_THREAD unsupported on z/OS + SEEK_CUR = 1 + SEEK_END = 2 + SEEK_SET = 0 + SETAUTOCVTALL = 5 + SETAUTOCVTON = 2 + SETCVTALL = 4 + SETCVTOFF = 0 + SETCVTON = 1 + AF_APPLETALK = 16 + AF_CCITT = 10 + AF_CHAOS = 5 + AF_DATAKIT = 9 + AF_DLI = 13 + AF_ECMA = 8 + AF_HYLINK = 15 + AF_IMPLINK = 3 + AF_INET = 2 + AF_INET6 = 19 + AF_INTF = 20 + AF_IUCV = 17 + AF_LAT = 14 + AF_LINK = 18 + AF_MAX = 30 + AF_NBS = 7 + AF_NDD = 23 + AF_NETWARE = 22 + AF_NS = 6 + AF_PUP = 4 + AF_RIF = 21 + AF_ROUTE = 20 + AF_SNA = 11 + AF_UNIX = 1 + AF_UNSPEC = 0 + IBMTCP_IMAGE = 1 + MSG_ACK_EXPECTED = 0x10 + MSG_ACK_GEN = 0x40 + MSG_ACK_TIMEOUT = 0x20 + MSG_CONNTERM = 0x80 + MSG_CTRUNC = 0x20 + MSG_DONTROUTE = 0x4 + MSG_EOF = 0x8000 + MSG_EOR = 0x8 + MSG_MAXIOVLEN = 16 + MSG_NONBLOCK = 0x4000 + MSG_OOB = 0x1 + MSG_PEEK = 0x2 + MSG_TRUNC = 0x10 + MSG_WAITALL = 0x40 + PRIO_PROCESS = 1 + PRIO_PGRP = 2 + PRIO_USER = 3 + RLIMIT_CPU = 0 + RLIMIT_FSIZE = 1 + RLIMIT_DATA = 2 + RLIMIT_STACK = 3 + RLIMIT_CORE = 4 + RLIMIT_AS = 5 + RLIMIT_NOFILE = 6 + RLIMIT_MEMLIMIT = 7 + RLIM_INFINITY = 2147483647 + SCM_RIGHTS = 0x01 + SF_CLOSE = 0x00000002 + SF_REUSE = 0x00000001 + SHUT_RD = 0 + SHUT_RDWR = 2 + SHUT_WR = 1 + SOCK_CONN_DGRAM = 6 + SOCK_DGRAM = 2 + SOCK_RAW = 3 + SOCK_RDM = 4 + SOCK_SEQPACKET = 5 + SOCK_STREAM = 1 + SOL_SOCKET = 0xffff + SOMAXCONN = 10 + SO_ACCEPTCONN = 0x0002 + SO_ACCEPTECONNABORTED = 0x0006 + SO_ACKNOW = 0x7700 + SO_BROADCAST = 0x0020 + SO_BULKMODE = 0x8000 + SO_CKSUMRECV = 0x0800 + SO_CLOSE = 0x01 + SO_CLUSTERCONNTYPE = 0x00004001 + SO_CLUSTERCONNTYPE_INTERNAL = 8 + SO_CLUSTERCONNTYPE_NOCONN = 0 + SO_CLUSTERCONNTYPE_NONE = 1 + SO_CLUSTERCONNTYPE_SAME_CLUSTER = 2 + SO_CLUSTERCONNTYPE_SAME_IMAGE = 4 + SO_DEBUG = 0x0001 + SO_DONTROUTE = 0x0010 + SO_ERROR = 0x1007 + SO_IGNOREINCOMINGPUSH = 0x1 + SO_IGNORESOURCEVIPA = 0x0002 + SO_KEEPALIVE = 0x0008 + SO_LINGER = 0x0080 + SO_NONBLOCKLOCAL = 0x8001 + SO_NOREUSEADDR = 0x1000 + SO_OOBINLINE = 0x0100 + SO_OPTACK = 0x8004 + SO_OPTMSS = 0x8003 + SO_RCVBUF = 0x1002 + SO_RCVLOWAT = 0x1004 + SO_RCVTIMEO = 0x1006 + SO_REUSEADDR = 0x0004 + SO_REUSEPORT = 0x0200 + SO_SECINFO = 0x00004002 + SO_SET = 0x0200 + SO_SNDBUF = 0x1001 + SO_SNDLOWAT = 0x1003 + SO_SNDTIMEO = 0x1005 + SO_TYPE = 0x1008 + SO_UNSET = 0x0400 + SO_USELOOPBACK = 0x0040 + SO_USE_IFBUFS = 0x0400 + S_ISUID = 0x0800 + S_ISGID = 0x0400 + S_ISVTX = 0x0200 + S_IRUSR = 0x0100 + S_IWUSR = 0x0080 + S_IXUSR = 0x0040 + S_IRWXU = 0x01C0 + S_IRGRP = 0x0020 + S_IWGRP = 0x0010 + S_IXGRP = 0x0008 + S_IRWXG = 0x0038 + S_IROTH = 0x0004 + S_IWOTH = 0x0002 + S_IXOTH = 0x0001 + S_IRWXO = 0x0007 + S_IREAD = S_IRUSR + S_IWRITE = S_IWUSR + S_IEXEC = S_IXUSR + S_IFDIR = 0x01000000 + S_IFCHR = 0x02000000 + S_IFREG = 0x03000000 + S_IFFIFO = 0x04000000 + S_IFIFO = 0x04000000 + S_IFLNK = 0x05000000 + S_IFBLK = 0x06000000 + S_IFSOCK = 0x07000000 + S_IFVMEXTL = 0xFE000000 + S_IFVMEXTL_EXEC = 0x00010000 + S_IFVMEXTL_DATA = 0x00020000 + S_IFVMEXTL_MEL = 0x00030000 + S_IFEXTL = 0x00000001 + S_IFPROGCTL = 0x00000002 + S_IFAPFCTL = 0x00000004 + S_IFNOSHARE = 0x00000008 + S_IFSHARELIB = 0x00000010 + S_IFMT = 0xFF000000 + S_IFMST = 0x00FF0000 + DT_BLK = 0x6 + DT_CHR = 0x2 + DT_DIR = 0x1 + DT_FIFO = 0x4 + DT_LNK = 0x5 + DT_REG = 0x3 + DT_SOCK = 0x7 + DT_UNKNOWN = 0x0 + DT_WHT = 0xe + TCP_KEEPALIVE = 0x8 + TCP_NODELAY = 0x1 + TCP_INFO = 0xb + TCP_USER_TIMEOUT = 0x1 + TIOCGWINSZ = 0x4008a368 + TIOCSWINSZ = 0x8008a367 + TIOCSBRK = 0x2000a77b + TIOCCBRK = 0x2000a77a + TIOCSTI = 0x8001a772 + TIOCGPGRP = 0x4004a777 // _IOR(167, 119, int) + TCSANOW = 0 + TCSETS = 0 // equivalent to TCSANOW for tcsetattr + TCSADRAIN = 1 + TCSETSW = 1 // equivalent to TCSADRAIN for tcsetattr + TCSAFLUSH = 2 + TCSETSF = 2 // equivalent to TCSAFLUSH for tcsetattr + TCGETS = 3 // not defined in ioctl.h -- zos golang only + TCIFLUSH = 0 + TCOFLUSH = 1 + TCIOFLUSH = 2 + TCOOFF = 0 + TCOON = 1 + TCIOFF = 2 + TCION = 3 + TIOCSPGRP = 0x8004a776 + TIOCNOTTY = 0x2000a771 + TIOCEXCL = 0x2000a70d + TIOCNXCL = 0x2000a70e + TIOCGETD = 0x4004a700 + TIOCSETD = 0x8004a701 + TIOCPKT = 0x8004a770 + TIOCSTOP = 0x2000a76f + TIOCSTART = 0x2000a76e + TIOCUCNTL = 0x8004a766 + TIOCREMOTE = 0x8004a769 + TIOCMGET = 0x4004a76a + TIOCMSET = 0x8004a76d + TIOCMBIC = 0x8004a76b + TIOCMBIS = 0x8004a76c + VINTR = 0 + VQUIT = 1 + VERASE = 2 + VKILL = 3 + VEOF = 4 + VEOL = 5 + VMIN = 6 + VSTART = 7 + VSTOP = 8 + VSUSP = 9 + VTIME = 10 + WCONTINUED = 0x4 + WNOHANG = 0x1 + WUNTRACED = 0x2 + _BPX_SWAP = 1 + _BPX_NONSWAP = 2 + MCL_CURRENT = 1 // for Linux compatibility -- no zos semantics + MCL_FUTURE = 2 // for Linux compatibility -- no zos semantics + MCL_ONFAULT = 3 // for Linux compatibility -- no zos semantics + MADV_NORMAL = 0 // for Linux compatibility -- no zos semantics + MADV_RANDOM = 1 // for Linux compatibility -- no zos semantics + MADV_SEQUENTIAL = 2 // for Linux compatibility -- no zos semantics + MADV_WILLNEED = 3 // for Linux compatibility -- no zos semantics + MADV_REMOVE = 4 // for Linux compatibility -- no zos semantics + MADV_DONTFORK = 5 // for Linux compatibility -- no zos semantics + MADV_DOFORK = 6 // for Linux compatibility -- no zos semantics + MADV_HWPOISON = 7 // for Linux compatibility -- no zos semantics + MADV_MERGEABLE = 8 // for Linux compatibility -- no zos semantics + MADV_UNMERGEABLE = 9 // for Linux compatibility -- no zos semantics + MADV_SOFT_OFFLINE = 10 // for Linux compatibility -- no zos semantics + MADV_HUGEPAGE = 11 // for Linux compatibility -- no zos semantics + MADV_NOHUGEPAGE = 12 // for Linux compatibility -- no zos semantics + MADV_DONTDUMP = 13 // for Linux compatibility -- no zos semantics + MADV_DODUMP = 14 // for Linux compatibility -- no zos semantics + MADV_FREE = 15 // for Linux compatibility -- no zos semantics + MADV_WIPEONFORK = 16 // for Linux compatibility -- no zos semantics + MADV_KEEPONFORK = 17 // for Linux compatibility -- no zos semantics + AT_SYMLINK_NOFOLLOW = 1 // for Unix compatibility -- no zos semantics + AT_FDCWD = 2 // for Unix compatibility -- no zos semantics +) + +const ( + EDOM = Errno(1) + ERANGE = Errno(2) + EACCES = Errno(111) + EAGAIN = Errno(112) + EBADF = Errno(113) + EBUSY = Errno(114) + ECHILD = Errno(115) + EDEADLK = Errno(116) + EEXIST = Errno(117) + EFAULT = Errno(118) + EFBIG = Errno(119) + EINTR = Errno(120) + EINVAL = Errno(121) + EIO = Errno(122) + EISDIR = Errno(123) + EMFILE = Errno(124) + EMLINK = Errno(125) + ENAMETOOLONG = Errno(126) + ENFILE = Errno(127) + ENODEV = Errno(128) + ENOENT = Errno(129) + ENOEXEC = Errno(130) + ENOLCK = Errno(131) + ENOMEM = Errno(132) + ENOSPC = Errno(133) + ENOSYS = Errno(134) + ENOTDIR = Errno(135) + ENOTEMPTY = Errno(136) + ENOTTY = Errno(137) + ENXIO = Errno(138) + EPERM = Errno(139) + EPIPE = Errno(140) + EROFS = Errno(141) + ESPIPE = Errno(142) + ESRCH = Errno(143) + EXDEV = Errno(144) + E2BIG = Errno(145) + ELOOP = Errno(146) + EILSEQ = Errno(147) + ENODATA = Errno(148) + EOVERFLOW = Errno(149) + EMVSNOTUP = Errno(150) + ECMSSTORAGE = Errno(151) + EMVSDYNALC = Errno(151) + EMVSCVAF = Errno(152) + EMVSCATLG = Errno(153) + ECMSINITIAL = Errno(156) + EMVSINITIAL = Errno(156) + ECMSERR = Errno(157) + EMVSERR = Errno(157) + EMVSPARM = Errno(158) + ECMSPFSFILE = Errno(159) + EMVSPFSFILE = Errno(159) + EMVSBADCHAR = Errno(160) + ECMSPFSPERM = Errno(162) + EMVSPFSPERM = Errno(162) + EMVSSAFEXTRERR = Errno(163) + EMVSSAF2ERR = Errno(164) + EMVSTODNOTSET = Errno(165) + EMVSPATHOPTS = Errno(166) + EMVSNORTL = Errno(167) + EMVSEXPIRE = Errno(168) + EMVSPASSWORD = Errno(169) + EMVSWLMERROR = Errno(170) + EMVSCPLERROR = Errno(171) + EMVSARMERROR = Errno(172) + ELENOFORK = Errno(200) + ELEMSGERR = Errno(201) + EFPMASKINV = Errno(202) + EFPMODEINV = Errno(203) + EBUFLEN = Errno(227) + EEXTLINK = Errno(228) + ENODD = Errno(229) + ECMSESMERR = Errno(230) + ECPERR = Errno(231) + ELEMULTITHREAD = Errno(232) + ELEFENCE = Errno(244) + EBADDATA = Errno(245) + EUNKNOWN = Errno(246) + ENOTSUP = Errno(247) + EBADNAME = Errno(248) + ENOTSAFE = Errno(249) + ELEMULTITHREADFORK = Errno(257) + ECUNNOENV = Errno(258) + ECUNNOCONV = Errno(259) + ECUNNOTALIGNED = Errno(260) + ECUNERR = Errno(262) + EIBMBADCALL = Errno(1000) + EIBMBADPARM = Errno(1001) + EIBMSOCKOUTOFRANGE = Errno(1002) + EIBMSOCKINUSE = Errno(1003) + EIBMIUCVERR = Errno(1004) + EOFFLOADboxERROR = Errno(1005) + EOFFLOADboxRESTART = Errno(1006) + EOFFLOADboxDOWN = Errno(1007) + EIBMCONFLICT = Errno(1008) + EIBMCANCELLED = Errno(1009) + EIBMBADTCPNAME = Errno(1011) + ENOTBLK = Errno(1100) + ETXTBSY = Errno(1101) + EWOULDBLOCK = Errno(1102) + EINPROGRESS = Errno(1103) + EALREADY = Errno(1104) + ENOTSOCK = Errno(1105) + EDESTADDRREQ = Errno(1106) + EMSGSIZE = Errno(1107) + EPROTOTYPE = Errno(1108) + ENOPROTOOPT = Errno(1109) + EPROTONOSUPPORT = Errno(1110) + ESOCKTNOSUPPORT = Errno(1111) + EOPNOTSUPP = Errno(1112) + EPFNOSUPPORT = Errno(1113) + EAFNOSUPPORT = Errno(1114) + EADDRINUSE = Errno(1115) + EADDRNOTAVAIL = Errno(1116) + ENETDOWN = Errno(1117) + ENETUNREACH = Errno(1118) + ENETRESET = Errno(1119) + ECONNABORTED = Errno(1120) + ECONNRESET = Errno(1121) + ENOBUFS = Errno(1122) + EISCONN = Errno(1123) + ENOTCONN = Errno(1124) + ESHUTDOWN = Errno(1125) + ETOOMANYREFS = Errno(1126) + ETIMEDOUT = Errno(1127) + ECONNREFUSED = Errno(1128) + EHOSTDOWN = Errno(1129) + EHOSTUNREACH = Errno(1130) + EPROCLIM = Errno(1131) + EUSERS = Errno(1132) + EDQUOT = Errno(1133) + ESTALE = Errno(1134) + EREMOTE = Errno(1135) + ENOSTR = Errno(1136) + ETIME = Errno(1137) + ENOSR = Errno(1138) + ENOMSG = Errno(1139) + EBADMSG = Errno(1140) + EIDRM = Errno(1141) + ENONET = Errno(1142) + ERREMOTE = Errno(1143) + ENOLINK = Errno(1144) + EADV = Errno(1145) + ESRMNT = Errno(1146) + ECOMM = Errno(1147) + EPROTO = Errno(1148) + EMULTIHOP = Errno(1149) + EDOTDOT = Errno(1150) + EREMCHG = Errno(1151) + ECANCELED = Errno(1152) + EINTRNODATA = Errno(1159) + ENOREUSE = Errno(1160) + ENOMOVE = Errno(1161) +) + +// Signals +const ( + SIGHUP = Signal(1) + SIGINT = Signal(2) + SIGABRT = Signal(3) + SIGILL = Signal(4) + SIGPOLL = Signal(5) + SIGURG = Signal(6) + SIGSTOP = Signal(7) + SIGFPE = Signal(8) + SIGKILL = Signal(9) + SIGBUS = Signal(10) + SIGSEGV = Signal(11) + SIGSYS = Signal(12) + SIGPIPE = Signal(13) + SIGALRM = Signal(14) + SIGTERM = Signal(15) + SIGUSR1 = Signal(16) + SIGUSR2 = Signal(17) + SIGABND = Signal(18) + SIGCONT = Signal(19) + SIGCHLD = Signal(20) + SIGTTIN = Signal(21) + SIGTTOU = Signal(22) + SIGIO = Signal(23) + SIGQUIT = Signal(24) + SIGTSTP = Signal(25) + SIGTRAP = Signal(26) + SIGIOERR = Signal(27) + SIGWINCH = Signal(28) + SIGXCPU = Signal(29) + SIGXFSZ = Signal(30) + SIGVTALRM = Signal(31) + SIGPROF = Signal(32) + SIGDANGER = Signal(33) + SIGTHSTOP = Signal(34) + SIGTHCONT = Signal(35) + SIGTRACE = Signal(37) + SIGDCE = Signal(38) + SIGDUMP = Signal(39) +) + +// Error table +var errorList = [...]struct { + num Errno + name string + desc string +}{ + {1, "EDC5001I", "A domain error occurred."}, + {2, "EDC5002I", "A range error occurred."}, + {111, "EDC5111I", "Permission denied."}, + {112, "EDC5112I", "Resource temporarily unavailable."}, + {113, "EDC5113I", "Bad file descriptor."}, + {114, "EDC5114I", "Resource busy."}, + {115, "EDC5115I", "No child processes."}, + {116, "EDC5116I", "Resource deadlock avoided."}, + {117, "EDC5117I", "File exists."}, + {118, "EDC5118I", "Incorrect address."}, + {119, "EDC5119I", "File too large."}, + {120, "EDC5120I", "Interrupted function call."}, + {121, "EDC5121I", "Invalid argument."}, + {122, "EDC5122I", "Input/output error."}, + {123, "EDC5123I", "Is a directory."}, + {124, "EDC5124I", "Too many open files."}, + {125, "EDC5125I", "Too many links."}, + {126, "EDC5126I", "Filename too long."}, + {127, "EDC5127I", "Too many open files in system."}, + {128, "EDC5128I", "No such device."}, + {129, "EDC5129I", "No such file or directory."}, + {130, "EDC5130I", "Exec format error."}, + {131, "EDC5131I", "No locks available."}, + {132, "EDC5132I", "Not enough memory."}, + {133, "EDC5133I", "No space left on device."}, + {134, "EDC5134I", "Function not implemented."}, + {135, "EDC5135I", "Not a directory."}, + {136, "EDC5136I", "Directory not empty."}, + {137, "EDC5137I", "Inappropriate I/O control operation."}, + {138, "EDC5138I", "No such device or address."}, + {139, "EDC5139I", "Operation not permitted."}, + {140, "EDC5140I", "Broken pipe."}, + {141, "EDC5141I", "Read-only file system."}, + {142, "EDC5142I", "Invalid seek."}, + {143, "EDC5143I", "No such process."}, + {144, "EDC5144I", "Improper link."}, + {145, "EDC5145I", "The parameter list is too long, or the message to receive was too large for the buffer."}, + {146, "EDC5146I", "Too many levels of symbolic links."}, + {147, "EDC5147I", "Illegal byte sequence."}, + {148, "", ""}, + {149, "EDC5149I", "Value Overflow Error."}, + {150, "EDC5150I", "UNIX System Services is not active."}, + {151, "EDC5151I", "Dynamic allocation error."}, + {152, "EDC5152I", "Common VTOC access facility (CVAF) error."}, + {153, "EDC5153I", "Catalog obtain error."}, + {156, "EDC5156I", "Process initialization error."}, + {157, "EDC5157I", "An internal error has occurred."}, + {158, "EDC5158I", "Bad parameters were passed to the service."}, + {159, "EDC5159I", "The Physical File System encountered a permanent file error."}, + {160, "EDC5160I", "Bad character in environment variable name."}, + {162, "EDC5162I", "The Physical File System encountered a system error."}, + {163, "EDC5163I", "SAF/RACF extract error."}, + {164, "EDC5164I", "SAF/RACF error."}, + {165, "EDC5165I", "System TOD clock not set."}, + {166, "EDC5166I", "Access mode argument on function call conflicts with PATHOPTS parameter on JCL DD statement."}, + {167, "EDC5167I", "Access to the UNIX System Services version of the C RTL is denied."}, + {168, "EDC5168I", "Password has expired."}, + {169, "EDC5169I", "Password is invalid."}, + {170, "EDC5170I", "An error was encountered with WLM."}, + {171, "EDC5171I", "An error was encountered with CPL."}, + {172, "EDC5172I", "An error was encountered with Application Response Measurement (ARM) component."}, + {200, "EDC5200I", "The application contains a Language Environment member language that cannot tolerate a fork()."}, + {201, "EDC5201I", "The Language Environment message file was not found in the hierarchical file system."}, + {202, "EDC5202E", "DLL facilities are not supported under SPC environment."}, + {203, "EDC5203E", "DLL facilities are not supported under POSIX environment."}, + {227, "EDC5227I", "Buffer is not long enough to contain a path definition"}, + {228, "EDC5228I", "The file referred to is an external link"}, + {229, "EDC5229I", "No path definition for ddname in effect"}, + {230, "EDC5230I", "ESM error."}, + {231, "EDC5231I", "CP or the external security manager had an error"}, + {232, "EDC5232I", "The function failed because it was invoked from a multithread environment."}, + {244, "EDC5244I", "The program, module or DLL is not supported in this environment."}, + {245, "EDC5245I", "Data is not valid."}, + {246, "EDC5246I", "Unknown system state."}, + {247, "EDC5247I", "Operation not supported."}, + {248, "EDC5248I", "The object name specified is not correct."}, + {249, "EDC5249I", "The function is not allowed."}, + {257, "EDC5257I", "Function cannot be called in the child process of a fork() from a multithreaded process until exec() is called."}, + {258, "EDC5258I", "A CUN_RS_NO_UNI_ENV error was issued by Unicode Services."}, + {259, "EDC5259I", "A CUN_RS_NO_CONVERSION error was issued by Unicode Services."}, + {260, "EDC5260I", "A CUN_RS_TABLE_NOT_ALIGNED error was issued by Unicode Services."}, + {262, "EDC5262I", "An iconv() function encountered an unexpected error while using Unicode Services."}, + {1000, "EDC8000I", "A bad socket-call constant was found in the IUCV header."}, + {1001, "EDC8001I", "An error was found in the IUCV header."}, + {1002, "EDC8002I", "A socket descriptor is out of range."}, + {1003, "EDC8003I", "A socket descriptor is in use."}, + {1004, "EDC8004I", "Request failed because of an IUCV error."}, + {1005, "EDC8005I", "Offload box error."}, + {1006, "EDC8006I", "Offload box restarted."}, + {1007, "EDC8007I", "Offload box down."}, + {1008, "EDC8008I", "Already a conflicting call outstanding on socket."}, + {1009, "EDC8009I", "Request cancelled using a SOCKcallCANCEL request."}, + {1011, "EDC8011I", "A name of a PFS was specified that either is not configured or is not a Sockets PFS."}, + {1100, "EDC8100I", "Block device required."}, + {1101, "EDC8101I", "Text file busy."}, + {1102, "EDC8102I", "Operation would block."}, + {1103, "EDC8103I", "Operation now in progress."}, + {1104, "EDC8104I", "Connection already in progress."}, + {1105, "EDC8105I", "Socket operation on non-socket."}, + {1106, "EDC8106I", "Destination address required."}, + {1107, "EDC8107I", "Message too long."}, + {1108, "EDC8108I", "Protocol wrong type for socket."}, + {1109, "EDC8109I", "Protocol not available."}, + {1110, "EDC8110I", "Protocol not supported."}, + {1111, "EDC8111I", "Socket type not supported."}, + {1112, "EDC8112I", "Operation not supported on socket."}, + {1113, "EDC8113I", "Protocol family not supported."}, + {1114, "EDC8114I", "Address family not supported."}, + {1115, "EDC8115I", "Address already in use."}, + {1116, "EDC8116I", "Address not available."}, + {1117, "EDC8117I", "Network is down."}, + {1118, "EDC8118I", "Network is unreachable."}, + {1119, "EDC8119I", "Network dropped connection on reset."}, + {1120, "EDC8120I", "Connection ended abnormally."}, + {1121, "EDC8121I", "Connection reset."}, + {1122, "EDC8122I", "No buffer space available."}, + {1123, "EDC8123I", "Socket already connected."}, + {1124, "EDC8124I", "Socket not connected."}, + {1125, "EDC8125I", "Can't send after socket shutdown."}, + {1126, "EDC8126I", "Too many references; can't splice."}, + {1127, "EDC8127I", "Connection timed out."}, + {1128, "EDC8128I", "Connection refused."}, + {1129, "EDC8129I", "Host is not available."}, + {1130, "EDC8130I", "Host cannot be reached."}, + {1131, "EDC8131I", "Too many processes."}, + {1132, "EDC8132I", "Too many users."}, + {1133, "EDC8133I", "Disk quota exceeded."}, + {1134, "EDC8134I", "Stale file handle."}, + {1135, "", ""}, + {1136, "EDC8136I", "File is not a STREAM."}, + {1137, "EDC8137I", "STREAMS ioctl() timeout."}, + {1138, "EDC8138I", "No STREAMS resources."}, + {1139, "EDC8139I", "The message identified by set_id and msg_id is not in the message catalog."}, + {1140, "EDC8140I", "Bad message."}, + {1141, "EDC8141I", "Identifier removed."}, + {1142, "", ""}, + {1143, "", ""}, + {1144, "EDC8144I", "The link has been severed."}, + {1145, "", ""}, + {1146, "", ""}, + {1147, "", ""}, + {1148, "EDC8148I", "Protocol error."}, + {1149, "EDC8149I", "Multihop not allowed."}, + {1150, "", ""}, + {1151, "", ""}, + {1152, "EDC8152I", "The asynchronous I/O request has been canceled."}, + {1159, "EDC8159I", "Function call was interrupted before any data was received."}, + {1160, "EDC8160I", "Socket reuse is not supported."}, + {1161, "EDC8161I", "The file system cannot currently be moved."}, +} + +// Signal table +var signalList = [...]struct { + num Signal + name string + desc string +}{ + {1, "SIGHUP", "hangup"}, + {2, "SIGINT", "interrupt"}, + {3, "SIGABT", "aborted"}, + {4, "SIGILL", "illegal instruction"}, + {5, "SIGPOLL", "pollable event"}, + {6, "SIGURG", "urgent I/O condition"}, + {7, "SIGSTOP", "stop process"}, + {8, "SIGFPE", "floating point exception"}, + {9, "SIGKILL", "killed"}, + {10, "SIGBUS", "bus error"}, + {11, "SIGSEGV", "segmentation fault"}, + {12, "SIGSYS", "bad argument to routine"}, + {13, "SIGPIPE", "broken pipe"}, + {14, "SIGALRM", "alarm clock"}, + {15, "SIGTERM", "terminated"}, + {16, "SIGUSR1", "user defined signal 1"}, + {17, "SIGUSR2", "user defined signal 2"}, + {18, "SIGABND", "abend"}, + {19, "SIGCONT", "continued"}, + {20, "SIGCHLD", "child exited"}, + {21, "SIGTTIN", "stopped (tty input)"}, + {22, "SIGTTOU", "stopped (tty output)"}, + {23, "SIGIO", "I/O possible"}, + {24, "SIGQUIT", "quit"}, + {25, "SIGTSTP", "stopped"}, + {26, "SIGTRAP", "trace/breakpoint trap"}, + {27, "SIGIOER", "I/O error"}, + {28, "SIGWINCH", "window changed"}, + {29, "SIGXCPU", "CPU time limit exceeded"}, + {30, "SIGXFSZ", "file size limit exceeded"}, + {31, "SIGVTALRM", "virtual timer expired"}, + {32, "SIGPROF", "profiling timer expired"}, + {33, "SIGDANGER", "danger"}, + {34, "SIGTHSTOP", "stop thread"}, + {35, "SIGTHCONT", "continue thread"}, + {37, "SIGTRACE", "trace"}, + {38, "", "DCE"}, + {39, "SIGDUMP", "dump"}, +} diff --git a/ztypes_zos_s390x.go b/ztypes_zos_s390x.go new file mode 100644 index 0000000000..aec1efcb30 --- /dev/null +++ b/ztypes_zos_s390x.go @@ -0,0 +1,415 @@ +// Copyright 2020 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. + +//go:build zos && s390x +// +build zos,s390x + +// Hand edited based on ztypes_linux_s390x.go +// TODO: auto-generate. + +package unix + +const ( + SizeofPtr = 0x8 + SizeofShort = 0x2 + SizeofInt = 0x4 + SizeofLong = 0x8 + SizeofLongLong = 0x8 + PathMax = 0x1000 +) + +const ( + SizeofSockaddrAny = 128 + SizeofCmsghdr = 12 + SizeofIPMreq = 8 + SizeofIPv6Mreq = 20 + SizeofICMPv6Filter = 32 + SizeofIPv6MTUInfo = 32 + SizeofLinger = 8 + SizeofSockaddrInet4 = 16 + SizeofSockaddrInet6 = 28 + SizeofTCPInfo = 0x68 +) + +type ( + _C_short int16 + _C_int int32 + _C_long int64 + _C_long_long int64 +) + +type Timespec struct { + Sec int64 + Nsec int64 +} + +type Timeval struct { + Sec int64 + Usec int64 +} + +type timeval_zos struct { //correct (with padding and all) + Sec int64 + _ [4]byte // pad + Usec int32 +} + +type Tms struct { //clock_t is 4-byte unsigned int in zos + Utime uint32 + Stime uint32 + Cutime uint32 + Cstime uint32 +} + +type Time_t int64 + +type Utimbuf struct { + Actime int64 + Modtime int64 +} + +type Utsname struct { + Sysname [65]byte + Nodename [65]byte + Release [65]byte + Version [65]byte + Machine [65]byte + Domainname [65]byte +} + +type RawSockaddrInet4 struct { + Len uint8 + Family uint8 + Port uint16 + Addr [4]byte /* in_addr */ + Zero [8]uint8 +} + +type RawSockaddrInet6 struct { + Len uint8 + Family uint8 + Port uint16 + Flowinfo uint32 + Addr [16]byte /* in6_addr */ + Scope_id uint32 +} + +type RawSockaddrUnix struct { + Len uint8 + Family uint8 + Path [108]int8 +} + +type RawSockaddr struct { + Len uint8 + Family uint8 + Data [14]uint8 +} + +type RawSockaddrAny struct { + Addr RawSockaddr + _ [112]uint8 // pad +} + +type _Socklen uint32 + +type Linger struct { + Onoff int32 + Linger int32 +} + +type Iovec struct { + Base *byte + Len uint64 +} + +type IPMreq struct { + Multiaddr [4]byte /* in_addr */ + Interface [4]byte /* in_addr */ +} + +type IPv6Mreq struct { + Multiaddr [16]byte /* in6_addr */ + Interface uint32 +} + +type Msghdr struct { + Name *byte + Iov *Iovec + Control *byte + Flags int32 + Namelen int32 + Iovlen int32 + Controllen int32 +} + +type Cmsghdr struct { + Len int32 + Level int32 + Type int32 +} + +type Inet4Pktinfo struct { + Addr [4]byte /* in_addr */ + Ifindex uint32 +} + +type Inet6Pktinfo struct { + Addr [16]byte /* in6_addr */ + Ifindex uint32 +} + +type IPv6MTUInfo struct { + Addr RawSockaddrInet6 + Mtu uint32 +} + +type ICMPv6Filter struct { + Data [8]uint32 +} + +type TCPInfo struct { + State uint8 + Ca_state uint8 + Retransmits uint8 + Probes uint8 + Backoff uint8 + Options uint8 + Rto uint32 + Ato uint32 + Snd_mss uint32 + Rcv_mss uint32 + Unacked uint32 + Sacked uint32 + Lost uint32 + Retrans uint32 + Fackets uint32 + Last_data_sent uint32 + Last_ack_sent uint32 + Last_data_recv uint32 + Last_ack_recv uint32 + Pmtu uint32 + Rcv_ssthresh uint32 + Rtt uint32 + Rttvar uint32 + Snd_ssthresh uint32 + Snd_cwnd uint32 + Advmss uint32 + Reordering uint32 + Rcv_rtt uint32 + Rcv_space uint32 + Total_retrans uint32 +} + +type _Gid_t uint32 + +type rusage_zos struct { + Utime timeval_zos + Stime timeval_zos +} + +type Rusage struct { + Utime Timeval + Stime Timeval + Maxrss int64 + Ixrss int64 + Idrss int64 + Isrss int64 + Minflt int64 + Majflt int64 + Nswap int64 + Inblock int64 + Oublock int64 + Msgsnd int64 + Msgrcv int64 + Nsignals int64 + Nvcsw int64 + Nivcsw int64 +} + +type Rlimit struct { + Cur uint64 + Max uint64 +} + +// { int, short, short } in poll.h +type PollFd struct { + Fd int32 + Events int16 + Revents int16 +} + +type Stat_t struct { //Linux Definition + Dev uint64 + Ino uint64 + Nlink uint64 + Mode uint32 + Uid uint32 + Gid uint32 + _ int32 + Rdev uint64 + Size int64 + Atim Timespec + Mtim Timespec + Ctim Timespec + Blksize int64 + Blocks int64 + _ [3]int64 +} + +type Stat_LE_t struct { + _ [4]byte // eye catcher + Length uint16 + Version uint16 + Mode int32 + Ino uint32 + Dev uint32 + Nlink int32 + Uid int32 + Gid int32 + Size int64 + Atim31 [4]byte + Mtim31 [4]byte + Ctim31 [4]byte + Rdev uint32 + Auditoraudit uint32 + Useraudit uint32 + Blksize int32 + Creatim31 [4]byte + AuditID [16]byte + _ [4]byte // rsrvd1 + File_tag struct { + Ccsid uint16 + Txtflag uint16 // aggregating Txflag:1 deferred:1 rsvflags:14 + } + CharsetID [8]byte + Blocks int64 + Genvalue uint32 + Reftim31 [4]byte + Fid [8]byte + Filefmt byte + Fspflag2 byte + _ [2]byte // rsrvd2 + Ctimemsec int32 + Seclabel [8]byte + _ [4]byte // rsrvd3 + _ [4]byte // rsrvd4 + Atim Time_t + Mtim Time_t + Ctim Time_t + Creatim Time_t + Reftim Time_t + _ [24]byte // rsrvd5 +} + +type Statvfs_t struct { + ID [4]byte + Len int32 + Bsize uint64 + Blocks uint64 + Usedspace uint64 + Bavail uint64 + Flag uint64 + Maxfilesize int64 + _ [16]byte + Frsize uint64 + Bfree uint64 + Files uint32 + Ffree uint32 + Favail uint32 + Namemax31 uint32 + Invarsec uint32 + _ [4]byte + Fsid uint64 + Namemax uint64 +} + +type Statfs_t struct { + Type uint32 + Bsize uint64 + Blocks uint64 + Bfree uint64 + Bavail uint64 + Files uint32 + Ffree uint32 + Fsid uint64 + Namelen uint64 + Frsize uint64 + Flags uint64 +} + +type direntLE struct { + Reclen uint16 + Namlen uint16 + Ino uint32 + Extra uintptr + Name [256]byte +} + +type Dirent struct { + Ino uint64 + Off int64 + Reclen uint16 + Type uint8 + Name [256]uint8 + _ [5]byte +} + +type FdSet struct { + Bits [64]int32 +} + +// This struct is packed on z/OS so it can't be used directly. +type Flock_t struct { + Type int16 + Whence int16 + Start int64 + Len int64 + Pid int32 +} + +type Termios struct { + Cflag uint32 + Iflag uint32 + Lflag uint32 + Oflag uint32 + Cc [11]uint8 +} + +type Winsize struct { + Row uint16 + Col uint16 + Xpixel uint16 + Ypixel uint16 +} + +type W_Mnth struct { + Hid [4]byte + Size int32 + Cur1 int32 //32bit pointer + Cur2 int32 //^ + Devno uint32 + _ [4]byte +} + +type W_Mntent struct { + Fstype uint32 + Mode uint32 + Dev uint32 + Parentdev uint32 + Rootino uint32 + Status byte + Ddname [9]byte + Fstname [9]byte + Fsname [45]byte + Pathlen uint32 + Mountpoint [1024]byte + Jobname [8]byte + PID int32 + Parmoffset int32 + Parmlen int16 + Owner [8]byte + Quiesceowner [8]byte + _ [38]byte +}