diff options
Diffstat (limited to 'pkg/sentry/syscalls/linux')
11 files changed, 299 insertions, 178 deletions
diff --git a/pkg/sentry/syscalls/linux/BUILD b/pkg/sentry/syscalls/linux/BUILD deleted file mode 100644 index 217fcfef2..000000000 --- a/pkg/sentry/syscalls/linux/BUILD +++ /dev/null @@ -1,103 +0,0 @@ -load("//tools:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "linux", - srcs = [ - "error.go", - "flags.go", - "linux64.go", - "sigset.go", - "sys_aio.go", - "sys_capability.go", - "sys_clone_amd64.go", - "sys_clone_arm64.go", - "sys_epoll.go", - "sys_eventfd.go", - "sys_file.go", - "sys_futex.go", - "sys_getdents.go", - "sys_identity.go", - "sys_inotify.go", - "sys_lseek.go", - "sys_mempolicy.go", - "sys_mmap.go", - "sys_mount.go", - "sys_pipe.go", - "sys_poll.go", - "sys_prctl.go", - "sys_random.go", - "sys_read.go", - "sys_rlimit.go", - "sys_rseq.go", - "sys_rusage.go", - "sys_sched.go", - "sys_seccomp.go", - "sys_sem.go", - "sys_shm.go", - "sys_signal.go", - "sys_socket.go", - "sys_splice.go", - "sys_stat.go", - "sys_stat_amd64.go", - "sys_stat_arm64.go", - "sys_sync.go", - "sys_sysinfo.go", - "sys_syslog.go", - "sys_thread.go", - "sys_time.go", - "sys_timer.go", - "sys_timerfd.go", - "sys_tls_amd64.go", - "sys_tls_arm64.go", - "sys_utsname.go", - "sys_write.go", - "sys_xattr.go", - "timespec.go", - ], - visibility = ["//:sandbox"], - deps = [ - "//pkg/abi", - "//pkg/abi/linux", - "//pkg/binary", - "//pkg/bpf", - "//pkg/context", - "//pkg/log", - "//pkg/metric", - "//pkg/rand", - "//pkg/safemem", - "//pkg/sentry/arch", - "//pkg/sentry/fs", - "//pkg/sentry/fs/anon", - "//pkg/sentry/fs/lock", - "//pkg/sentry/fs/timerfd", - "//pkg/sentry/fs/tmpfs", - "//pkg/sentry/fsbridge", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/auth", - "//pkg/sentry/kernel/epoll", - "//pkg/sentry/kernel/eventfd", - "//pkg/sentry/kernel/fasync", - "//pkg/sentry/kernel/pipe", - "//pkg/sentry/kernel/sched", - "//pkg/sentry/kernel/shm", - "//pkg/sentry/kernel/signalfd", - "//pkg/sentry/kernel/time", - "//pkg/sentry/limits", - "//pkg/sentry/loader", - "//pkg/sentry/memmap", - "//pkg/sentry/mm", - "//pkg/sentry/socket", - "//pkg/sentry/socket/control", - "//pkg/sentry/socket/unix/transport", - "//pkg/sentry/syscalls", - "//pkg/sentry/usage", - "//pkg/sentry/vfs", - "//pkg/sync", - "//pkg/syserr", - "//pkg/syserror", - "//pkg/usermem", - "//pkg/waiter", - ], -) diff --git a/pkg/sentry/syscalls/linux/linux_amd64_state_autogen.go b/pkg/sentry/syscalls/linux/linux_amd64_state_autogen.go new file mode 100644 index 000000000..b3e3be0b6 --- /dev/null +++ b/pkg/sentry/syscalls/linux/linux_amd64_state_autogen.go @@ -0,0 +1,7 @@ +// automatically generated by stateify. + +// +build amd64 +// +build amd64 +// +build amd64 + +package linux diff --git a/pkg/sentry/syscalls/linux/linux_arm64_state_autogen.go b/pkg/sentry/syscalls/linux/linux_arm64_state_autogen.go new file mode 100644 index 000000000..f03e36ddc --- /dev/null +++ b/pkg/sentry/syscalls/linux/linux_arm64_state_autogen.go @@ -0,0 +1,7 @@ +// automatically generated by stateify. + +// +build arm64 +// +build arm64 +// +build arm64 + +package linux diff --git a/pkg/sentry/syscalls/linux/linux_state_autogen.go b/pkg/sentry/syscalls/linux/linux_state_autogen.go new file mode 100644 index 000000000..8d70a3ee6 --- /dev/null +++ b/pkg/sentry/syscalls/linux/linux_state_autogen.go @@ -0,0 +1,106 @@ +// automatically generated by stateify. + +package linux + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (x *futexWaitRestartBlock) StateTypeName() string { + return "pkg/sentry/syscalls/linux.futexWaitRestartBlock" +} + +func (x *futexWaitRestartBlock) StateFields() []string { + return []string{ + "duration", + "addr", + "private", + "val", + "mask", + } +} + +func (x *futexWaitRestartBlock) beforeSave() {} + +func (x *futexWaitRestartBlock) StateSave(m state.Sink) { + x.beforeSave() + m.Save(0, &x.duration) + m.Save(1, &x.addr) + m.Save(2, &x.private) + m.Save(3, &x.val) + m.Save(4, &x.mask) +} + +func (x *futexWaitRestartBlock) afterLoad() {} + +func (x *futexWaitRestartBlock) StateLoad(m state.Source) { + m.Load(0, &x.duration) + m.Load(1, &x.addr) + m.Load(2, &x.private) + m.Load(3, &x.val) + m.Load(4, &x.mask) +} + +func (x *pollRestartBlock) StateTypeName() string { + return "pkg/sentry/syscalls/linux.pollRestartBlock" +} + +func (x *pollRestartBlock) StateFields() []string { + return []string{ + "pfdAddr", + "nfds", + "timeout", + } +} + +func (x *pollRestartBlock) beforeSave() {} + +func (x *pollRestartBlock) StateSave(m state.Sink) { + x.beforeSave() + m.Save(0, &x.pfdAddr) + m.Save(1, &x.nfds) + m.Save(2, &x.timeout) +} + +func (x *pollRestartBlock) afterLoad() {} + +func (x *pollRestartBlock) StateLoad(m state.Source) { + m.Load(0, &x.pfdAddr) + m.Load(1, &x.nfds) + m.Load(2, &x.timeout) +} + +func (x *clockNanosleepRestartBlock) StateTypeName() string { + return "pkg/sentry/syscalls/linux.clockNanosleepRestartBlock" +} + +func (x *clockNanosleepRestartBlock) StateFields() []string { + return []string{ + "c", + "duration", + "rem", + } +} + +func (x *clockNanosleepRestartBlock) beforeSave() {} + +func (x *clockNanosleepRestartBlock) StateSave(m state.Sink) { + x.beforeSave() + m.Save(0, &x.c) + m.Save(1, &x.duration) + m.Save(2, &x.rem) +} + +func (x *clockNanosleepRestartBlock) afterLoad() {} + +func (x *clockNanosleepRestartBlock) StateLoad(m state.Source) { + m.Load(0, &x.c) + m.Load(1, &x.duration) + m.Load(2, &x.rem) +} + +func init() { + state.Register((*futexWaitRestartBlock)(nil)) + state.Register((*pollRestartBlock)(nil)) + state.Register((*clockNanosleepRestartBlock)(nil)) +} diff --git a/pkg/sentry/syscalls/linux/vfs2/BUILD b/pkg/sentry/syscalls/linux/vfs2/BUILD deleted file mode 100644 index c301a0991..000000000 --- a/pkg/sentry/syscalls/linux/vfs2/BUILD +++ /dev/null @@ -1,75 +0,0 @@ -load("//tools:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "vfs2", - srcs = [ - "aio.go", - "epoll.go", - "eventfd.go", - "execve.go", - "fd.go", - "filesystem.go", - "fscontext.go", - "getdents.go", - "inotify.go", - "ioctl.go", - "lock.go", - "memfd.go", - "mmap.go", - "mount.go", - "path.go", - "pipe.go", - "poll.go", - "read_write.go", - "setstat.go", - "signal.go", - "socket.go", - "splice.go", - "stat.go", - "stat_amd64.go", - "stat_arm64.go", - "sync.go", - "timerfd.go", - "vfs2.go", - "xattr.go", - ], - marshal = True, - visibility = ["//:sandbox"], - deps = [ - "//pkg/abi/linux", - "//pkg/binary", - "//pkg/bits", - "//pkg/context", - "//pkg/fspath", - "//pkg/gohacks", - "//pkg/sentry/arch", - "//pkg/sentry/fs/lock", - "//pkg/sentry/fsbridge", - "//pkg/sentry/fsimpl/eventfd", - "//pkg/sentry/fsimpl/pipefs", - "//pkg/sentry/fsimpl/signalfd", - "//pkg/sentry/fsimpl/timerfd", - "//pkg/sentry/fsimpl/tmpfs", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/auth", - "//pkg/sentry/kernel/pipe", - "//pkg/sentry/kernel/time", - "//pkg/sentry/limits", - "//pkg/sentry/loader", - "//pkg/sentry/memmap", - "//pkg/sentry/mm", - "//pkg/sentry/socket", - "//pkg/sentry/socket/control", - "//pkg/sentry/socket/unix/transport", - "//pkg/sentry/syscalls", - "//pkg/sentry/syscalls/linux", - "//pkg/sentry/vfs", - "//pkg/sync", - "//pkg/syserr", - "//pkg/syserror", - "//pkg/usermem", - "//pkg/waiter", - ], -) 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 100644 index 000000000..372fbcd8e --- /dev/null +++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_abi_autogen_unsafe.go @@ -0,0 +1,111 @@ +// Automatically generated marshal implementation. See tools/go_marshal. + +package vfs2 + +import ( + "gvisor.dev/gvisor/pkg/gohacks" + "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. +//go:nosplit +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) +} + +// CopyOutN implements marshal.Marshallable.CopyOutN. +//go:nosplit +func (s *sigSetWithSize) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) { + // Construct a slice backed by dst's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(s))) + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay. + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until the use above. + runtime.KeepAlive(s) + return length, err +} + +// CopyOut implements marshal.Marshallable.CopyOut. +//go:nosplit +func (s *sigSetWithSize) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) { + return s.CopyOutN(task, addr, s.SizeBytes()) +} + +// CopyIn implements marshal.Marshallable.CopyIn. +//go:nosplit +func (s *sigSetWithSize) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) { + // Construct a slice backed by dst's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(s))) + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + length, err := task.CopyInBytes(addr, buf) // escapes: okay. + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until the use above. + runtime.KeepAlive(s) + return length, err +} + +// WriteTo implements io.WriterTo.WriteTo. +func (s *sigSetWithSize) WriteTo(w io.Writer) (int64, error) { + // Construct a slice backed by dst's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(s))) + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + length, err := w.Write(buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until the use above. + runtime.KeepAlive(s) + return int64(length), 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 100644 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 100644 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 100644 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 100644 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 100644 index 000000000..031381834 --- /dev/null +++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_state_autogen.go @@ -0,0 +1,40 @@ +// automatically generated by stateify. + +package vfs2 + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (x *pollRestartBlock) StateTypeName() string { + return "pkg/sentry/syscalls/linux/vfs2.pollRestartBlock" +} + +func (x *pollRestartBlock) StateFields() []string { + return []string{ + "pfdAddr", + "nfds", + "timeout", + } +} + +func (x *pollRestartBlock) beforeSave() {} + +func (x *pollRestartBlock) StateSave(m state.Sink) { + x.beforeSave() + m.Save(0, &x.pfdAddr) + m.Save(1, &x.nfds) + m.Save(2, &x.timeout) +} + +func (x *pollRestartBlock) afterLoad() {} + +func (x *pollRestartBlock) StateLoad(m state.Source) { + m.Load(0, &x.pfdAddr) + m.Load(1, &x.nfds) + m.Load(2, &x.timeout) +} + +func init() { + state.Register((*pollRestartBlock)(nil)) +} |