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path: root/pkg/sentry/syscalls/linux/sys_file.go
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Diffstat (limited to 'pkg/sentry/syscalls/linux/sys_file.go')
-rw-r--r--pkg/sentry/syscalls/linux/sys_file.go16
1 files changed, 11 insertions, 5 deletions
diff --git a/pkg/sentry/syscalls/linux/sys_file.go b/pkg/sentry/syscalls/linux/sys_file.go
index 519066a47..8db587401 100644
--- a/pkg/sentry/syscalls/linux/sys_file.go
+++ b/pkg/sentry/syscalls/linux/sys_file.go
@@ -646,7 +646,7 @@ func Ioctl(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall
if _, err := primitive.CopyInt32In(t, args[2].Pointer(), &set); err != nil {
return 0, nil, err
}
- fSetOwn(t, file, set)
+ fSetOwn(t, int(fd), file, set)
return 0, nil, nil
case linux.FIOGETOWN, linux.SIOCGPGRP:
@@ -901,8 +901,8 @@ func fGetOwn(t *kernel.Task, file *fs.File) int32 {
//
// If who is positive, it represents a PID. If negative, it represents a PGID.
// If the PID or PGID is invalid, the owner is silently unset.
-func fSetOwn(t *kernel.Task, file *fs.File, who int32) error {
- a := file.Async(fasync.New).(*fasync.FileAsync)
+func fSetOwn(t *kernel.Task, fd int, file *fs.File, who int32) error {
+ a := file.Async(fasync.New(fd)).(*fasync.FileAsync)
if who < 0 {
// Check for overflow before flipping the sign.
if who-1 > who {
@@ -1049,7 +1049,7 @@ func Fcntl(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall
case linux.F_GETOWN:
return uintptr(fGetOwn(t, file)), nil, nil
case linux.F_SETOWN:
- return 0, nil, fSetOwn(t, file, args[2].Int())
+ return 0, nil, fSetOwn(t, int(fd), file, args[2].Int())
case linux.F_GETOWN_EX:
addr := args[2].Pointer()
owner := fGetOwnEx(t, file)
@@ -1062,7 +1062,7 @@ func Fcntl(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall
if err != nil {
return 0, nil, err
}
- a := file.Async(fasync.New).(*fasync.FileAsync)
+ a := file.Async(fasync.New(int(fd))).(*fasync.FileAsync)
switch owner.Type {
case linux.F_OWNER_TID:
task := t.PIDNamespace().TaskWithID(kernel.ThreadID(owner.PID))
@@ -1111,6 +1111,12 @@ func Fcntl(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall
}
n, err := sz.SetFifoSize(int64(args[2].Int()))
return uintptr(n), nil, err
+ case linux.F_GETSIG:
+ a := file.Async(fasync.New(int(fd))).(*fasync.FileAsync)
+ return uintptr(a.Signal()), nil, nil
+ case linux.F_SETSIG:
+ a := file.Async(fasync.New(int(fd))).(*fasync.FileAsync)
+ return 0, nil, a.SetSignal(linux.Signal(args[2].Int()))
default:
// Everything else is not yet supported.
return 0, nil, syserror.EINVAL