binder

Documentation

Overview

Package binder implements Android Binder IPC module.

Index

• type Device
  • func NewDevice(ctx context.Context, owner fs.FileOwner, fp fs.FilePermissions) *Device
  • func (bd *Device) AddLink()
  • func (bd *Device) Check(ctx context.Context, inode *fs.Inode, p fs.PermMask) bool
  • func (bd *Device) DropLink()
  • func (bd *Device) GetFile(ctx context.Context, d *fs.Dirent, flags fs.FileFlags) (*fs.File, error)
  • func (bd *Device) IsVirtual() bool
  • func (bd *Device) NotifyStatusChange(ctx context.Context)
  • func (bd *Device) Release(context.Context)
  • func (bd *Device) SetOwner(ctx context.Context, inode *fs.Inode, owner fs.FileOwner) error
  • func (bd *Device) SetPermissions(ctx context.Context, inode *fs.Inode, fp fs.FilePermissions) bool
  • func (bd *Device) SetTimestamps(ctx context.Context, inode *fs.Inode, ts fs.TimeSpec) error
  • func (bd *Device) StatFS(context.Context) (fs.Info, error)
  • func (bd *Device) Truncate(ctx context.Context, inode *fs.Inode, size int64) error
  • func (bd *Device) UnstableAttr(ctx context.Context, inode *fs.Inode) (fs.UnstableAttr, error)
• type Proc
  • func (bp *Proc) AddMapping(ctx context.Context, ms memmap.MappingSpace, ar usermem.AddrRange, ...) error
  • func (bp *Proc) ConfigureMMap(ctx context.Context, file *fs.File, opts *memmap.MMapOpts) error
  • func (bp *Proc) CopyMapping(ctx context.Context, ms memmap.MappingSpace, srcAR, dstAR usermem.AddrRange, ...) error
  • func (bp *Proc) Flush(ctx context.Context, file *fs.File) error
  • func (bp *Proc) InvalidateUnsavable(ctx context.Context) error
  • func (bp *Proc) Ioctl(ctx context.Context, io usermem.IO, args arch.SyscallArguments) (uintptr, error)
  • func (bp *Proc) Read(ctx context.Context, file *fs.File, dst usermem.IOSequence, offset int64) (int64, error)
  • func (bp *Proc) Release()
  • func (bp *Proc) RemoveMapping(ctx context.Context, ms memmap.MappingSpace, ar usermem.AddrRange, ...)
  • func (bp *Proc) Seek(ctx context.Context, file *fs.File, whence fs.SeekWhence, offset int64) (int64, error)
  • func (bp *Proc) Translate(ctx context.Context, required, optional memmap.MappableRange, ...) ([]memmap.Translation, error)
  • func (bp *Proc) Write(ctx context.Context, file *fs.File, src usermem.IOSequence, offset int64) (int64, error)

Types

type Device

type Device struct {
	fsutil.InodeNoExtendedAttributes
	fsutil.InodeNotDirectory
	fsutil.InodeNotRenameable
	fsutil.InodeNotSocket
	fsutil.InodeNotSymlink
	fsutil.NoMappable
	fsutil.NoopWriteOut
	fsutil.DeprecatedFileOperations
	// contains filtered or unexported fields
}

Device implements fs.InodeOperations.

func NewDevice

func NewDevice(ctx context.Context, owner fs.FileOwner, fp fs.FilePermissions) *Device

NewDevice creates and intializes a Device structure.

func (*Device) AddLink

func (bd *Device) AddLink()

AddLink implements fs.InodeOperations.AddLink.

Binder doesn't support links, no-op.

func (*Device) Check

func (bd *Device) Check(ctx context.Context, inode *fs.Inode, p fs.PermMask) bool

Check implements fs.InodeOperations.Check.

func (*Device) DropLink

func (bd *Device) DropLink()

DropLink implements fs.InodeOperations.DropLink.

Binder doesn't support links, no-op.

func (*Device) GetFile

func (bd *Device) GetFile(ctx context.Context, d *fs.Dirent, flags fs.FileFlags) (*fs.File, error)

GetFile implements fs.InodeOperations.GetFile.

TODO: Add functionality to GetFile: Additional fields will be needed in the Device structure, initialize them here. Also, Device will need to keep track of the created Procs in order to implement BINDER_READ_WRITE ioctl.

func (*Device) IsVirtual

func (bd *Device) IsVirtual() bool

IsVirtual implements fs.InodeOperations.IsVirtual.

Binder is virtual.

func (*Device) NotifyStatusChange

func (bd *Device) NotifyStatusChange(ctx context.Context)

NotifyStatusChange implements fs.InodeOperations.NotifyStatusChange.

func (*Device) Release

func (bd *Device) Release(context.Context)

Release implements fs.InodeOperations.Release.

func (*Device) SetOwner

func (bd *Device) SetOwner(ctx context.Context, inode *fs.Inode, owner fs.FileOwner) error

SetOwner implements fs.InodeOperations.SetOwner.

func (*Device) SetPermissions

func (bd *Device) SetPermissions(ctx context.Context, inode *fs.Inode, fp fs.FilePermissions) bool

SetPermissions implements fs.InodeOperations.SetPermissions.

func (*Device) SetTimestamps

func (bd *Device) SetTimestamps(ctx context.Context, inode *fs.Inode, ts fs.TimeSpec) error

SetTimestamps implements fs.InodeOperations.SetTimestamps.

func (*Device) StatFS

func (bd *Device) StatFS(context.Context) (fs.Info, error)

StatFS implements fs.InodeOperations.StatFS.

Binder doesn't support querying for filesystem info.

func (*Device) Truncate

func (bd *Device) Truncate(ctx context.Context, inode *fs.Inode, size int64) error

Truncate implements fs.InodeOperations.WriteOut.

Ignored for a character device, such as Binder.

func (*Device) UnstableAttr

func (bd *Device) UnstableAttr(ctx context.Context, inode *fs.Inode) (fs.UnstableAttr, error)

UnstableAttr implements fs.InodeOperations.UnstableAttr.

type Proc

type Proc struct {
	fsutil.NoFsync
	fsutil.DeprecatedFileOperations
	fsutil.NotDirReaddir
	// contains filtered or unexported fields
}

Proc implements fs.FileOperations and fs.IoctlGetter.

func (*Proc) AddMapping

func (bp *Proc) AddMapping(ctx context.Context, ms memmap.MappingSpace, ar usermem.AddrRange, offset uint64) error

AddMapping implements memmap.Mappable.AddMapping.

func (*Proc) ConfigureMMap

func (bp *Proc) ConfigureMMap(ctx context.Context, file *fs.File, opts *memmap.MMapOpts) error

ConfigureMMap implements fs.FileOperations.ConfigureMMap.

func (*Proc) CopyMapping

func (bp *Proc) CopyMapping(ctx context.Context, ms memmap.MappingSpace, srcAR, dstAR usermem.AddrRange, offset uint64) error

CopyMapping implements memmap.Mappable.CopyMapping.

func (*Proc) Flush

func (bp *Proc) Flush(ctx context.Context, file *fs.File) error

Flush implements fs.FileOperations.Flush.

TODO: Implement.

func (*Proc) InvalidateUnsavable

func (bp *Proc) InvalidateUnsavable(ctx context.Context) error

InvalidateUnsavable implements memmap.Mappable.InvalidateUnsavable.

func (*Proc) Ioctl

func (bp *Proc) Ioctl(ctx context.Context, io usermem.IO, args arch.SyscallArguments) (uintptr, error)

Ioctl implements fs.FileOperations.Ioctl.

TODO: Implement.

func (*Proc) Read

func (bp *Proc) Read(ctx context.Context, file *fs.File, dst usermem.IOSequence, offset int64) (int64, error)

Read implements fs.FileOperations.Read.

Binder doesn't support read operation (unless in debug mode).

func (*Proc) Release

func (bp *Proc) Release()

Release implements fs.FileOperations.Release.

func (*Proc) RemoveMapping

func (bp *Proc) RemoveMapping(ctx context.Context, ms memmap.MappingSpace, ar usermem.AddrRange, offset uint64)

RemoveMapping implements memmap.Mappable.RemoveMapping.

func (*Proc) Seek

func (bp *Proc) Seek(ctx context.Context, file *fs.File, whence fs.SeekWhence, offset int64) (int64, error)

Seek implements fs.FileOperations.Seek.

Binder doesn't support seek operation (unless in debug mode).

func (*Proc) Translate

func (bp *Proc) Translate(ctx context.Context, required, optional memmap.MappableRange, at usermem.AccessType) ([]memmap.Translation, error)

Translate implements memmap.Mappable.Translate.

func (*Proc) Write

func (bp *Proc) Write(ctx context.Context, file *fs.File, src usermem.IOSequence, offset int64) (int64, error)

Write implements fs.FileOperations.Write.

Binder doesn't support write operation.