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Internal change.

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PiperOrigin-RevId: 416113422
This commit is contained in:
gVisor bot
2021-12-13 13:00:36 -08:00
parent a9938e0f14
commit 02f12a67bb
1 changed files with 19 additions and 1 deletions
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pkg/sentry/socket/hostinet/socket_unsafe.go
+19 -1
View File
@@ -67,7 +67,7 @@ func ioctl(ctx context.Context, fd int, io usermem.IO, args arch.SyscallArgument
AddressSpaceActive: true,
})
return 0, err
case unix.SIOCGIFFLAGS, unix.SIOCGIFCONF:
case unix.SIOCGIFFLAGS:
cc := &usermem.IOCopyContext{
Ctx: ctx,
IO: io,
@@ -84,6 +84,24 @@ func ioctl(ctx context.Context, fd int, io usermem.IO, args arch.SyscallArgument
}
_, err := ifr.CopyOut(cc, args[2].Pointer())
return 0, err
case unix.SIOCGIFCONF:
cc := &usermem.IOCopyContext{
Ctx: ctx,
IO: io,
Opts: usermem.IOOpts{
AddressSpaceActive: true,
},
}
var ifc linux.IFConf
if _, err := ifc.CopyIn(cc, args[2].Pointer()); err != nil {
return 0, err
}
// TODO(b/209503078): Check ifc.Ptr range is in untrusted range.
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), cmd, uintptr(unsafe.Pointer(&ifc))); errno != 0 {
return 0, translateIOSyscallError(errno)
}
_, err := ifc.CopyOut(cc, args[2].Pointer())
return 0, err
default:
return 0, linuxerr.ENOTTY
}