diff options
Diffstat (limited to 'pkg/sentry/syscalls/linux/vfs2')
26 files changed, 176 insertions, 50 deletions
diff --git a/pkg/sentry/syscalls/linux/vfs2/BUILD b/pkg/sentry/syscalls/linux/vfs2/BUILD deleted file mode 100644 index f51761e81..000000000 --- a/pkg/sentry/syscalls/linux/vfs2/BUILD +++ /dev/null @@ -1,50 +0,0 @@ -load("//tools:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "vfs2", - srcs = [ - "epoll.go", - "epoll_unsafe.go", - "execve.go", - "fd.go", - "filesystem.go", - "fscontext.go", - "getdents.go", - "ioctl.go", - "linux64.go", - "linux64_override_amd64.go", - "linux64_override_arm64.go", - "mmap.go", - "path.go", - "poll.go", - "read_write.go", - "setstat.go", - "stat.go", - "sync.go", - "xattr.go", - ], - marshal = True, - visibility = ["//:sandbox"], - deps = [ - "//pkg/abi/linux", - "//pkg/fspath", - "//pkg/gohacks", - "//pkg/sentry/arch", - "//pkg/sentry/fsbridge", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/auth", - "//pkg/sentry/kernel/time", - "//pkg/sentry/limits", - "//pkg/sentry/loader", - "//pkg/sentry/memmap", - "//pkg/sentry/syscalls", - "//pkg/sentry/syscalls/linux", - "//pkg/sentry/vfs", - "//pkg/sync", - "//pkg/syserror", - "//pkg/usermem", - "//pkg/waiter", - ], -) diff --git a/pkg/sentry/syscalls/linux/vfs2/epoll.go b/pkg/sentry/syscalls/linux/vfs2/epoll.go index d6cb0e79a..d6cb0e79a 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/epoll.go +++ b/pkg/sentry/syscalls/linux/vfs2/epoll.go diff --git a/pkg/sentry/syscalls/linux/vfs2/epoll_unsafe.go b/pkg/sentry/syscalls/linux/vfs2/epoll_unsafe.go index 825f325bf..825f325bf 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/epoll_unsafe.go +++ b/pkg/sentry/syscalls/linux/vfs2/epoll_unsafe.go diff --git a/pkg/sentry/syscalls/linux/vfs2/execve.go b/pkg/sentry/syscalls/linux/vfs2/execve.go index aef0078a8..aef0078a8 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/execve.go +++ b/pkg/sentry/syscalls/linux/vfs2/execve.go diff --git a/pkg/sentry/syscalls/linux/vfs2/fd.go b/pkg/sentry/syscalls/linux/vfs2/fd.go index 3afcea665..3afcea665 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/fd.go +++ b/pkg/sentry/syscalls/linux/vfs2/fd.go diff --git a/pkg/sentry/syscalls/linux/vfs2/filesystem.go b/pkg/sentry/syscalls/linux/vfs2/filesystem.go index fc5ceea4c..fc5ceea4c 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/filesystem.go +++ b/pkg/sentry/syscalls/linux/vfs2/filesystem.go diff --git a/pkg/sentry/syscalls/linux/vfs2/fscontext.go b/pkg/sentry/syscalls/linux/vfs2/fscontext.go index 317409a18..317409a18 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/fscontext.go +++ b/pkg/sentry/syscalls/linux/vfs2/fscontext.go diff --git a/pkg/sentry/syscalls/linux/vfs2/getdents.go b/pkg/sentry/syscalls/linux/vfs2/getdents.go index ddc140b65..ddc140b65 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/getdents.go +++ b/pkg/sentry/syscalls/linux/vfs2/getdents.go diff --git a/pkg/sentry/syscalls/linux/vfs2/ioctl.go b/pkg/sentry/syscalls/linux/vfs2/ioctl.go index 5a2418da9..5a2418da9 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/ioctl.go +++ b/pkg/sentry/syscalls/linux/vfs2/ioctl.go diff --git a/pkg/sentry/syscalls/linux/vfs2/linux64.go b/pkg/sentry/syscalls/linux/vfs2/linux64.go index 19ee36081..19ee36081 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/linux64.go +++ b/pkg/sentry/syscalls/linux/vfs2/linux64.go diff --git a/pkg/sentry/syscalls/linux/vfs2/linux64_override_amd64.go b/pkg/sentry/syscalls/linux/vfs2/linux64_override_amd64.go index 7d220bc20..7d220bc20 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/linux64_override_amd64.go +++ b/pkg/sentry/syscalls/linux/vfs2/linux64_override_amd64.go diff --git a/pkg/sentry/syscalls/linux/vfs2/linux64_override_arm64.go b/pkg/sentry/syscalls/linux/vfs2/linux64_override_arm64.go index a6b367468..a6b367468 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/linux64_override_arm64.go +++ b/pkg/sentry/syscalls/linux/vfs2/linux64_override_arm64.go diff --git a/pkg/sentry/syscalls/linux/vfs2/mmap.go b/pkg/sentry/syscalls/linux/vfs2/mmap.go index 60a43f0a0..60a43f0a0 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/mmap.go +++ b/pkg/sentry/syscalls/linux/vfs2/mmap.go diff --git a/pkg/sentry/syscalls/linux/vfs2/path.go b/pkg/sentry/syscalls/linux/vfs2/path.go index 97da6c647..97da6c647 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/path.go +++ b/pkg/sentry/syscalls/linux/vfs2/path.go diff --git a/pkg/sentry/syscalls/linux/vfs2/poll.go b/pkg/sentry/syscalls/linux/vfs2/poll.go index dbf4882da..dbf4882da 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/poll.go +++ b/pkg/sentry/syscalls/linux/vfs2/poll.go diff --git a/pkg/sentry/syscalls/linux/vfs2/read_write.go b/pkg/sentry/syscalls/linux/vfs2/read_write.go index 35f6308d6..35f6308d6 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/read_write.go +++ b/pkg/sentry/syscalls/linux/vfs2/read_write.go diff --git a/pkg/sentry/syscalls/linux/vfs2/setstat.go b/pkg/sentry/syscalls/linux/vfs2/setstat.go index 9250659ff..9250659ff 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/setstat.go +++ b/pkg/sentry/syscalls/linux/vfs2/setstat.go diff --git a/pkg/sentry/syscalls/linux/vfs2/stat.go b/pkg/sentry/syscalls/linux/vfs2/stat.go index dca8d7011..dca8d7011 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/stat.go +++ b/pkg/sentry/syscalls/linux/vfs2/stat.go diff --git a/pkg/sentry/syscalls/linux/vfs2/sync.go b/pkg/sentry/syscalls/linux/vfs2/sync.go index 365250b0b..365250b0b 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/sync.go +++ b/pkg/sentry/syscalls/linux/vfs2/sync.go diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_abi_autogen_unsafe.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_abi_autogen_unsafe.go new file mode 100755 index 000000000..fb2182415 --- /dev/null +++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_abi_autogen_unsafe.go @@ -0,0 +1,122 @@ +// Automatically generated marshal implementation. See tools/go_marshal. + +package vfs2 + +import ( + "gvisor.dev/gvisor/pkg/safecopy" + "gvisor.dev/gvisor/pkg/usermem" + "gvisor.dev/gvisor/tools/go_marshal/marshal" + "io" + "reflect" + "runtime" + "unsafe" +) + +// Marshallable types used by this file. +var _ marshal.Marshallable = (*sigSetWithSize)(nil) + +// SizeBytes implements marshal.Marshallable.SizeBytes. +func (s *sigSetWithSize) SizeBytes() int { + return 16 +} + +// MarshalBytes implements marshal.Marshallable.MarshalBytes. +func (s *sigSetWithSize) MarshalBytes(dst []byte) { + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.sigsetAddr)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.sizeofSigset)) + dst = dst[8:] +} + +// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes. +func (s *sigSetWithSize) UnmarshalBytes(src []byte) { + s.sigsetAddr = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.sizeofSigset = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] +} + +// Packed implements marshal.Marshallable.Packed. +func (s *sigSetWithSize) Packed() bool { + return true +} + +// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. +func (s *sigSetWithSize) MarshalUnsafe(dst []byte) { + safecopy.CopyIn(dst, unsafe.Pointer(s)) +} + +// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. +func (s *sigSetWithSize) UnmarshalUnsafe(src []byte) { + safecopy.CopyOut(unsafe.Pointer(s), src) +} + +// CopyOut implements marshal.Marshallable.CopyOut. +func (s *sigSetWithSize) CopyOut(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyOutBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyOutBytes. + runtime.KeepAlive(s) + return err +} + +// CopyIn implements marshal.Marshallable.CopyIn. +func (s *sigSetWithSize) CopyIn(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyInBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyInBytes. + runtime.KeepAlive(s) + return err +} + +// WriteTo implements io.WriterTo.WriteTo. +func (s *sigSetWithSize) WriteTo(w io.Writer) (int64, error) { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + len, err := w.Write(buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the Write. + runtime.KeepAlive(s) + return int64(len), err +} + diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_abi_autogen_unsafe.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_abi_autogen_unsafe.go new file mode 100755 index 000000000..204c7ceaf --- /dev/null +++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_abi_autogen_unsafe.go @@ -0,0 +1,9 @@ +// Automatically generated marshal implementation. See tools/go_marshal. + +// +build amd64 + +package vfs2 + +import ( +) + diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_state_autogen.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_state_autogen.go new file mode 100755 index 000000000..7f5556f9c --- /dev/null +++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_state_autogen.go @@ -0,0 +1,5 @@ +// automatically generated by stateify. + +// +build amd64 + +package vfs2 diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_abi_autogen_unsafe.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_abi_autogen_unsafe.go new file mode 100755 index 000000000..08e10d735 --- /dev/null +++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_abi_autogen_unsafe.go @@ -0,0 +1,9 @@ +// Automatically generated marshal implementation. See tools/go_marshal. + +// +build arm64 + +package vfs2 + +import ( +) + diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_state_autogen.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_state_autogen.go new file mode 100755 index 000000000..3e3862045 --- /dev/null +++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_state_autogen.go @@ -0,0 +1,5 @@ +// automatically generated by stateify. + +// +build arm64 + +package vfs2 diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_state_autogen.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_state_autogen.go new file mode 100755 index 000000000..570100331 --- /dev/null +++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_state_autogen.go @@ -0,0 +1,26 @@ +// automatically generated by stateify. + +package vfs2 + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (x *pollRestartBlock) beforeSave() {} +func (x *pollRestartBlock) save(m state.Map) { + x.beforeSave() + m.Save("pfdAddr", &x.pfdAddr) + m.Save("nfds", &x.nfds) + m.Save("timeout", &x.timeout) +} + +func (x *pollRestartBlock) afterLoad() {} +func (x *pollRestartBlock) load(m state.Map) { + m.Load("pfdAddr", &x.pfdAddr) + m.Load("nfds", &x.nfds) + m.Load("timeout", &x.timeout) +} + +func init() { + state.Register("pkg/sentry/syscalls/linux/vfs2.pollRestartBlock", (*pollRestartBlock)(nil), state.Fns{Save: (*pollRestartBlock).save, Load: (*pollRestartBlock).load}) +} diff --git a/pkg/sentry/syscalls/linux/vfs2/xattr.go b/pkg/sentry/syscalls/linux/vfs2/xattr.go index 89e9ff4d7..89e9ff4d7 100644..100755 --- a/pkg/sentry/syscalls/linux/vfs2/xattr.go +++ b/pkg/sentry/syscalls/linux/vfs2/xattr.go |