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-rw-r--r--pkg/sentry/syscalls/linux/vfs2/filesystem.go50
-rw-r--r--pkg/sentry/syscalls/linux/vfs2/setstat.go50
2 files changed, 50 insertions, 50 deletions
diff --git a/pkg/sentry/syscalls/linux/vfs2/filesystem.go b/pkg/sentry/syscalls/linux/vfs2/filesystem.go
index 6b14c2bef..b6d2ddd65 100644
--- a/pkg/sentry/syscalls/linux/vfs2/filesystem.go
+++ b/pkg/sentry/syscalls/linux/vfs2/filesystem.go
@@ -18,7 +18,6 @@ import (
"gvisor.dev/gvisor/pkg/abi/linux"
"gvisor.dev/gvisor/pkg/sentry/arch"
"gvisor.dev/gvisor/pkg/sentry/kernel"
- "gvisor.dev/gvisor/pkg/sentry/limits"
"gvisor.dev/gvisor/pkg/sentry/vfs"
"gvisor.dev/gvisor/pkg/syserror"
"gvisor.dev/gvisor/pkg/usermem"
@@ -245,55 +244,6 @@ func renameat(t *kernel.Task, olddirfd int32, oldpathAddr usermem.Addr, newdirfd
})
}
-// Fallocate implements linux system call fallocate(2).
-func Fallocate(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallControl, error) {
- fd := args[0].Int()
- mode := args[1].Uint64()
- offset := args[2].Int64()
- length := args[3].Int64()
-
- file := t.GetFileVFS2(fd)
-
- if file == nil {
- return 0, nil, syserror.EBADF
- }
- defer file.DecRef()
-
- if !file.IsWritable() {
- return 0, nil, syserror.EBADF
- }
-
- if mode != 0 {
- return 0, nil, syserror.ENOTSUP
- }
-
- if offset < 0 || length <= 0 {
- return 0, nil, syserror.EINVAL
- }
-
- size := offset + length
-
- if size < 0 {
- return 0, nil, syserror.EFBIG
- }
-
- limit := limits.FromContext(t).Get(limits.FileSize).Cur
-
- if uint64(size) >= limit {
- t.SendSignal(&arch.SignalInfo{
- Signo: int32(linux.SIGXFSZ),
- Code: arch.SignalInfoUser,
- })
- return 0, nil, syserror.EFBIG
- }
-
- return 0, nil, file.Impl().Allocate(t, mode, uint64(offset), uint64(length))
-
- // File length modified, generate notification.
- // TODO(gvisor.dev/issue/1479): Reenable when Inotify is ported.
- // file.Dirent.InotifyEvent(linux.IN_MODIFY, 0)
-}
-
// Rmdir implements Linux syscall rmdir(2).
func Rmdir(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallControl, error) {
pathAddr := args[0].Pointer()
diff --git a/pkg/sentry/syscalls/linux/vfs2/setstat.go b/pkg/sentry/syscalls/linux/vfs2/setstat.go
index 6daedd173..37fa56c19 100644
--- a/pkg/sentry/syscalls/linux/vfs2/setstat.go
+++ b/pkg/sentry/syscalls/linux/vfs2/setstat.go
@@ -20,6 +20,7 @@ import (
"gvisor.dev/gvisor/pkg/sentry/arch"
"gvisor.dev/gvisor/pkg/sentry/kernel"
"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
+ "gvisor.dev/gvisor/pkg/sentry/limits"
"gvisor.dev/gvisor/pkg/sentry/vfs"
"gvisor.dev/gvisor/pkg/syserror"
"gvisor.dev/gvisor/pkg/usermem"
@@ -211,6 +212,55 @@ func Ftruncate(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sys
return 0, nil, handleSetSizeError(t, err)
}
+// Fallocate implements linux system call fallocate(2).
+func Fallocate(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallControl, error) {
+ fd := args[0].Int()
+ mode := args[1].Uint64()
+ offset := args[2].Int64()
+ length := args[3].Int64()
+
+ file := t.GetFileVFS2(fd)
+
+ if file == nil {
+ return 0, nil, syserror.EBADF
+ }
+ defer file.DecRef()
+
+ if !file.IsWritable() {
+ return 0, nil, syserror.EBADF
+ }
+
+ if mode != 0 {
+ return 0, nil, syserror.ENOTSUP
+ }
+
+ if offset < 0 || length <= 0 {
+ return 0, nil, syserror.EINVAL
+ }
+
+ size := offset + length
+
+ if size < 0 {
+ return 0, nil, syserror.EFBIG
+ }
+
+ limit := limits.FromContext(t).Get(limits.FileSize).Cur
+
+ if uint64(size) >= limit {
+ t.SendSignal(&arch.SignalInfo{
+ Signo: int32(linux.SIGXFSZ),
+ Code: arch.SignalInfoUser,
+ })
+ return 0, nil, syserror.EFBIG
+ }
+
+ return 0, nil, file.Allocate(t, mode, uint64(offset), uint64(length))
+
+ // File length modified, generate notification.
+ // TODO(gvisor.dev/issue/1479): Reenable when Inotify is ported.
+ // file.Dirent.InotifyEvent(linux.IN_MODIFY, 0)
+}
+
// Utime implements Linux syscall utime(2).
func Utime(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallControl, error) {
pathAddr := args[0].Pointer()