updated syscall usage
This commit is contained in:
parent
c9aa60ca28
commit
204aec8135
333 changed files with 12973 additions and 7669 deletions
365
vendor/golang.org/x/sys/unix/syscall_linux.go
generated
vendored
365
vendor/golang.org/x/sys/unix/syscall_linux.go
generated
vendored
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@ -61,15 +61,23 @@ func FanotifyMark(fd int, flags uint, mask uint64, dirFd int, pathname string) (
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}
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//sys fchmodat(dirfd int, path string, mode uint32) (err error)
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//sys fchmodat2(dirfd int, path string, mode uint32, flags int) (err error)
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func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) {
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// Linux fchmodat doesn't support the flags parameter. Mimick glibc's behavior
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// and check the flags. Otherwise the mode would be applied to the symlink
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// destination which is not what the user expects.
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if flags&^AT_SYMLINK_NOFOLLOW != 0 {
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return EINVAL
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} else if flags&AT_SYMLINK_NOFOLLOW != 0 {
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return EOPNOTSUPP
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func Fchmodat(dirfd int, path string, mode uint32, flags int) error {
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// Linux fchmodat doesn't support the flags parameter, but fchmodat2 does.
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// Try fchmodat2 if flags are specified.
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if flags != 0 {
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err := fchmodat2(dirfd, path, mode, flags)
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if err == ENOSYS {
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// fchmodat2 isn't available. If the flags are known to be valid,
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// return EOPNOTSUPP to indicate that fchmodat doesn't support them.
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if flags&^(AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) != 0 {
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return EINVAL
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} else if flags&(AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) != 0 {
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return EOPNOTSUPP
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}
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}
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return err
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}
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return fchmodat(dirfd, path, mode)
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}
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@ -417,7 +425,8 @@ func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
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if n > 0 {
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sl += _Socklen(n) + 1
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}
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if sa.raw.Path[0] == '@' {
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if sa.raw.Path[0] == '@' || (sa.raw.Path[0] == 0 && sl > 3) {
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// Check sl > 3 so we don't change unnamed socket behavior.
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sa.raw.Path[0] = 0
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// Don't count trailing NUL for abstract address.
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sl--
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@ -693,10 +702,10 @@ type SockaddrALG struct {
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func (sa *SockaddrALG) sockaddr() (unsafe.Pointer, _Socklen, error) {
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// Leave room for NUL byte terminator.
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if len(sa.Type) > 13 {
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if len(sa.Type) > len(sa.raw.Type)-1 {
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return nil, 0, EINVAL
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}
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if len(sa.Name) > 63 {
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if len(sa.Name) > len(sa.raw.Name)-1 {
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return nil, 0, EINVAL
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}
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@ -704,17 +713,8 @@ func (sa *SockaddrALG) sockaddr() (unsafe.Pointer, _Socklen, error) {
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sa.raw.Feat = sa.Feature
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sa.raw.Mask = sa.Mask
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typ, err := ByteSliceFromString(sa.Type)
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if err != nil {
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return nil, 0, err
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}
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name, err := ByteSliceFromString(sa.Name)
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if err != nil {
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return nil, 0, err
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}
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copy(sa.raw.Type[:], typ)
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copy(sa.raw.Name[:], name)
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copy(sa.raw.Type[:], sa.Type)
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copy(sa.raw.Name[:], sa.Name)
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return unsafe.Pointer(&sa.raw), SizeofSockaddrALG, nil
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}
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@ -1310,7 +1310,7 @@ func GetsockoptString(fd, level, opt int) (string, error) {
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return "", err
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}
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}
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return string(buf[:vallen-1]), nil
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return ByteSliceToString(buf[:vallen]), nil
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}
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func GetsockoptTpacketStats(fd, level, opt int) (*TpacketStats, error) {
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@ -1699,12 +1699,23 @@ func PtracePokeUser(pid int, addr uintptr, data []byte) (count int, err error) {
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return ptracePoke(PTRACE_POKEUSR, PTRACE_PEEKUSR, pid, addr, data)
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}
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// elfNT_PRSTATUS is a copy of the debug/elf.NT_PRSTATUS constant so
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// x/sys/unix doesn't need to depend on debug/elf and thus
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// compress/zlib, debug/dwarf, and other packages.
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const elfNT_PRSTATUS = 1
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func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) {
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return ptracePtr(PTRACE_GETREGS, pid, 0, unsafe.Pointer(regsout))
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var iov Iovec
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iov.Base = (*byte)(unsafe.Pointer(regsout))
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iov.SetLen(int(unsafe.Sizeof(*regsout)))
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return ptracePtr(PTRACE_GETREGSET, pid, uintptr(elfNT_PRSTATUS), unsafe.Pointer(&iov))
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}
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func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
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return ptracePtr(PTRACE_SETREGS, pid, 0, unsafe.Pointer(regs))
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var iov Iovec
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iov.Base = (*byte)(unsafe.Pointer(regs))
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iov.SetLen(int(unsafe.Sizeof(*regs)))
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return ptracePtr(PTRACE_SETREGSET, pid, uintptr(elfNT_PRSTATUS), unsafe.Pointer(&iov))
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}
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func PtraceSetOptions(pid int, options int) (err error) {
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@ -1838,6 +1849,105 @@ func Dup2(oldfd, newfd int) error {
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//sys Fsmount(fd int, flags int, mountAttrs int) (fsfd int, err error)
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//sys Fsopen(fsName string, flags int) (fd int, err error)
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//sys Fspick(dirfd int, pathName string, flags int) (fd int, err error)
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//sys fsconfig(fd int, cmd uint, key *byte, value *byte, aux int) (err error)
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func fsconfigCommon(fd int, cmd uint, key string, value *byte, aux int) (err error) {
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var keyp *byte
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if keyp, err = BytePtrFromString(key); err != nil {
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return
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}
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return fsconfig(fd, cmd, keyp, value, aux)
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}
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// FsconfigSetFlag is equivalent to fsconfig(2) called
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// with cmd == FSCONFIG_SET_FLAG.
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//
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// fd is the filesystem context to act upon.
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// key the parameter key to set.
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func FsconfigSetFlag(fd int, key string) (err error) {
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return fsconfigCommon(fd, FSCONFIG_SET_FLAG, key, nil, 0)
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}
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// FsconfigSetString is equivalent to fsconfig(2) called
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// with cmd == FSCONFIG_SET_STRING.
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//
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// fd is the filesystem context to act upon.
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// key the parameter key to set.
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// value is the parameter value to set.
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func FsconfigSetString(fd int, key string, value string) (err error) {
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var valuep *byte
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if valuep, err = BytePtrFromString(value); err != nil {
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return
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}
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return fsconfigCommon(fd, FSCONFIG_SET_STRING, key, valuep, 0)
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}
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// FsconfigSetBinary is equivalent to fsconfig(2) called
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// with cmd == FSCONFIG_SET_BINARY.
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//
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// fd is the filesystem context to act upon.
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// key the parameter key to set.
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// value is the parameter value to set.
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func FsconfigSetBinary(fd int, key string, value []byte) (err error) {
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if len(value) == 0 {
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return EINVAL
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}
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return fsconfigCommon(fd, FSCONFIG_SET_BINARY, key, &value[0], len(value))
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}
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// FsconfigSetPath is equivalent to fsconfig(2) called
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// with cmd == FSCONFIG_SET_PATH.
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//
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// fd is the filesystem context to act upon.
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// key the parameter key to set.
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// path is a non-empty path for specified key.
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// atfd is a file descriptor at which to start lookup from or AT_FDCWD.
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func FsconfigSetPath(fd int, key string, path string, atfd int) (err error) {
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var valuep *byte
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if valuep, err = BytePtrFromString(path); err != nil {
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return
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}
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return fsconfigCommon(fd, FSCONFIG_SET_PATH, key, valuep, atfd)
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}
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// FsconfigSetPathEmpty is equivalent to fsconfig(2) called
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// with cmd == FSCONFIG_SET_PATH_EMPTY. The same as
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// FconfigSetPath but with AT_PATH_EMPTY implied.
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func FsconfigSetPathEmpty(fd int, key string, path string, atfd int) (err error) {
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var valuep *byte
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if valuep, err = BytePtrFromString(path); err != nil {
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return
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}
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return fsconfigCommon(fd, FSCONFIG_SET_PATH_EMPTY, key, valuep, atfd)
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}
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// FsconfigSetFd is equivalent to fsconfig(2) called
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// with cmd == FSCONFIG_SET_FD.
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//
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// fd is the filesystem context to act upon.
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// key the parameter key to set.
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// value is a file descriptor to be assigned to specified key.
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func FsconfigSetFd(fd int, key string, value int) (err error) {
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return fsconfigCommon(fd, FSCONFIG_SET_FD, key, nil, value)
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}
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// FsconfigCreate is equivalent to fsconfig(2) called
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// with cmd == FSCONFIG_CMD_CREATE.
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//
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// fd is the filesystem context to act upon.
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func FsconfigCreate(fd int) (err error) {
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return fsconfig(fd, FSCONFIG_CMD_CREATE, nil, nil, 0)
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}
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// FsconfigReconfigure is equivalent to fsconfig(2) called
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// with cmd == FSCONFIG_CMD_RECONFIGURE.
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//
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// fd is the filesystem context to act upon.
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func FsconfigReconfigure(fd int) (err error) {
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return fsconfig(fd, FSCONFIG_CMD_RECONFIGURE, nil, nil, 0)
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}
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//sys Getdents(fd int, buf []byte) (n int, err error) = SYS_GETDENTS64
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//sysnb Getpgid(pid int) (pgid int, err error)
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@ -1873,9 +1983,8 @@ func Getpgrp() (pid int) {
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//sys OpenTree(dfd int, fileName string, flags uint) (r int, err error)
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//sys PerfEventOpen(attr *PerfEventAttr, pid int, cpu int, groupFd int, flags int) (fd int, err error)
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//sys PivotRoot(newroot string, putold string) (err error) = SYS_PIVOT_ROOT
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//sysnb Prlimit(pid int, resource int, newlimit *Rlimit, old *Rlimit) (err error) = SYS_PRLIMIT64
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//sys Prctl(option int, arg2 uintptr, arg3 uintptr, arg4 uintptr, arg5 uintptr) (err error)
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//sys Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *Sigset_t) (n int, err error) = SYS_PSELECT6
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//sys pselect6(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *sigset_argpack) (n int, err error)
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//sys read(fd int, p []byte) (n int, err error)
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//sys Removexattr(path string, attr string) (err error)
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//sys Renameat2(olddirfd int, oldpath string, newdirfd int, newpath string, flags uint) (err error)
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@ -1887,6 +1996,15 @@ func Getpgrp() (pid int) {
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//sysnb Settimeofday(tv *Timeval) (err error)
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//sys Setns(fd int, nstype int) (err error)
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//go:linkname syscall_prlimit syscall.prlimit
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func syscall_prlimit(pid, resource int, newlimit, old *syscall.Rlimit) error
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func Prlimit(pid, resource int, newlimit, old *Rlimit) error {
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// Just call the syscall version, because as of Go 1.21
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// it will affect starting a new process.
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return syscall_prlimit(pid, resource, (*syscall.Rlimit)(newlimit), (*syscall.Rlimit)(old))
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}
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// PrctlRetInt performs a prctl operation specified by option and further
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// optional arguments arg2 through arg5 depending on option. It returns a
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// non-negative integer that is returned by the prctl syscall.
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@ -1969,8 +2087,6 @@ func Signalfd(fd int, sigmask *Sigset_t, flags int) (newfd int, err error) {
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//sys Unshare(flags int) (err error)
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//sys write(fd int, p []byte) (n int, err error)
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//sys exitThread(code int) (err error) = SYS_EXIT
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//sys readlen(fd int, p *byte, np int) (n int, err error) = SYS_READ
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//sys writelen(fd int, p *byte, np int) (n int, err error) = SYS_WRITE
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//sys readv(fd int, iovs []Iovec) (n int, err error) = SYS_READV
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//sys writev(fd int, iovs []Iovec) (n int, err error) = SYS_WRITEV
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//sys preadv(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr) (n int, err error) = SYS_PREADV
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@ -2105,21 +2221,7 @@ func writevRacedetect(iovecs []Iovec, n int) {
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// mmap varies by architecture; see syscall_linux_*.go.
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//sys munmap(addr uintptr, length uintptr) (err error)
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var mapper = &mmapper{
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active: make(map[*byte][]byte),
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mmap: mmap,
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munmap: munmap,
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}
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func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
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return mapper.Mmap(fd, offset, length, prot, flags)
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}
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func Munmap(b []byte) (err error) {
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return mapper.Munmap(b)
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}
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//sys mremap(oldaddr uintptr, oldlength uintptr, newlength uintptr, flags int, newaddr uintptr) (xaddr uintptr, err error)
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//sys Madvise(b []byte, advice int) (err error)
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//sys Mprotect(b []byte, prot int) (err error)
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//sys Mlock(b []byte) (err error)
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@ -2128,6 +2230,12 @@ func Munmap(b []byte) (err error) {
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//sys Munlock(b []byte) (err error)
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//sys Munlockall() (err error)
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const (
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mremapFixed = MREMAP_FIXED
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mremapDontunmap = MREMAP_DONTUNMAP
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mremapMaymove = MREMAP_MAYMOVE
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)
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// Vmsplice splices user pages from a slice of Iovecs into a pipe specified by fd,
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// using the specified flags.
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func Vmsplice(fd int, iovs []Iovec, flags int) (int, error) {
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@ -2412,99 +2520,76 @@ func PthreadSigmask(how int, set, oldset *Sigset_t) error {
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return rtSigprocmask(how, set, oldset, _C__NSIG/8)
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}
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/*
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* Unimplemented
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*/
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// AfsSyscall
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// ArchPrctl
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// Brk
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// ClockNanosleep
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// ClockSettime
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// Clone
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// EpollCtlOld
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// EpollPwait
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// EpollWaitOld
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// Execve
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// Fork
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// Futex
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// GetKernelSyms
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// GetMempolicy
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// GetRobustList
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// GetThreadArea
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// Getpmsg
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// IoCancel
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// IoDestroy
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// IoGetevents
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// IoSetup
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// IoSubmit
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// IoprioGet
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// IoprioSet
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// KexecLoad
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// LookupDcookie
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// Mbind
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// MigratePages
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// Mincore
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// ModifyLdt
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// Mount
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// MovePages
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// MqGetsetattr
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// MqNotify
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// MqOpen
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// MqTimedreceive
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// MqTimedsend
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// MqUnlink
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// Mremap
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// Msgctl
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// Msgget
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// Msgrcv
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// Msgsnd
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// Nfsservctl
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// Personality
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// Pselect6
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// Ptrace
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// Putpmsg
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// Quotactl
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// Readahead
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// Readv
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// RemapFilePages
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// RestartSyscall
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// RtSigaction
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// RtSigpending
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// RtSigqueueinfo
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// RtSigreturn
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// RtSigsuspend
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// RtSigtimedwait
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// SchedGetPriorityMax
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// SchedGetPriorityMin
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// SchedGetparam
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// SchedGetscheduler
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// SchedRrGetInterval
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// SchedSetparam
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// SchedYield
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// Security
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// Semctl
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// Semget
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// Semop
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// Semtimedop
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// SetMempolicy
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// SetRobustList
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// SetThreadArea
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// SetTidAddress
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// Sigaltstack
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// Swapoff
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// Swapon
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// Sysfs
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// TimerCreate
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// TimerDelete
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// TimerGetoverrun
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// TimerGettime
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// TimerSettime
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// Tkill (obsolete)
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// Tuxcall
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// Umount2
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// Uselib
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// Utimensat
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// Vfork
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// Vhangup
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// Vserver
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// _Sysctl
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//sysnb getresuid(ruid *_C_int, euid *_C_int, suid *_C_int)
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//sysnb getresgid(rgid *_C_int, egid *_C_int, sgid *_C_int)
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func Getresuid() (ruid, euid, suid int) {
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var r, e, s _C_int
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getresuid(&r, &e, &s)
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return int(r), int(e), int(s)
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}
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func Getresgid() (rgid, egid, sgid int) {
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var r, e, s _C_int
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getresgid(&r, &e, &s)
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return int(r), int(e), int(s)
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}
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// Pselect is a wrapper around the Linux pselect6 system call.
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// This version does not modify the timeout argument.
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func Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *Sigset_t) (n int, err error) {
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// Per https://man7.org/linux/man-pages/man2/select.2.html#NOTES,
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// The Linux pselect6() system call modifies its timeout argument.
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// [Not modifying the argument] is the behavior required by POSIX.1-2001.
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var mutableTimeout *Timespec
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if timeout != nil {
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mutableTimeout = new(Timespec)
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*mutableTimeout = *timeout
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}
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// The final argument of the pselect6() system call is not a
|
||||
// sigset_t * pointer, but is instead a structure
|
||||
var kernelMask *sigset_argpack
|
||||
if sigmask != nil {
|
||||
wordBits := 32 << (^uintptr(0) >> 63) // see math.intSize
|
||||
|
||||
// A sigset stores one bit per signal,
|
||||
// offset by 1 (because signal 0 does not exist).
|
||||
// So the number of words needed is ⌈__C_NSIG - 1 / wordBits⌉.
|
||||
sigsetWords := (_C__NSIG - 1 + wordBits - 1) / (wordBits)
|
||||
|
||||
sigsetBytes := uintptr(sigsetWords * (wordBits / 8))
|
||||
kernelMask = &sigset_argpack{
|
||||
ss: sigmask,
|
||||
ssLen: sigsetBytes,
|
||||
}
|
||||
}
|
||||
|
||||
return pselect6(nfd, r, w, e, mutableTimeout, kernelMask)
|
||||
}
|
||||
|
||||
//sys schedSetattr(pid int, attr *SchedAttr, flags uint) (err error)
|
||||
//sys schedGetattr(pid int, attr *SchedAttr, size uint, flags uint) (err error)
|
||||
|
||||
// SchedSetAttr is a wrapper for sched_setattr(2) syscall.
|
||||
// https://man7.org/linux/man-pages/man2/sched_setattr.2.html
|
||||
func SchedSetAttr(pid int, attr *SchedAttr, flags uint) error {
|
||||
if attr == nil {
|
||||
return EINVAL
|
||||
}
|
||||
attr.Size = SizeofSchedAttr
|
||||
return schedSetattr(pid, attr, flags)
|
||||
}
|
||||
|
||||
// SchedGetAttr is a wrapper for sched_getattr(2) syscall.
|
||||
// https://man7.org/linux/man-pages/man2/sched_getattr.2.html
|
||||
func SchedGetAttr(pid int, flags uint) (*SchedAttr, error) {
|
||||
attr := &SchedAttr{}
|
||||
if err := schedGetattr(pid, attr, SizeofSchedAttr, flags); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return attr, nil
|
||||
}
|
||||
|
||||
//sys Cachestat(fd uint, crange *CachestatRange, cstat *Cachestat_t, flags uint) (err error)
|
||||
//sys Mseal(b []byte, flags uint) (err error)
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue