Check in gVisor.

PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463

1 files changed, 40 insertions, 0 deletions

diff --git a/pkg/tcpip/link/rawfile/errors.go b/pkg/tcpip/link/rawfile/errors.go
new file mode 100644
index 000000000..b6e7b3d71
--- /dev/null
+++ b/pkg/tcpip/link/rawfile/errors.go
@@ -0,0 +1,40 @@
+package rawfile
+
+import (
+	"syscall"
+
+	"gvisor.googlesource.com/gvisor/pkg/tcpip"
+)
+
+var translations = map[syscall.Errno]*tcpip.Error{
+	syscall.EEXIST:        tcpip.ErrDuplicateAddress,
+	syscall.ENETUNREACH:   tcpip.ErrNoRoute,
+	syscall.EINVAL:        tcpip.ErrInvalidEndpointState,
+	syscall.EALREADY:      tcpip.ErrAlreadyConnecting,
+	syscall.EISCONN:       tcpip.ErrAlreadyConnected,
+	syscall.EADDRINUSE:    tcpip.ErrPortInUse,
+	syscall.EADDRNOTAVAIL: tcpip.ErrBadLocalAddress,
+	syscall.EPIPE:         tcpip.ErrClosedForSend,
+	syscall.EWOULDBLOCK:   tcpip.ErrWouldBlock,
+	syscall.ECONNREFUSED:  tcpip.ErrConnectionRefused,
+	syscall.ETIMEDOUT:     tcpip.ErrTimeout,
+	syscall.EINPROGRESS:   tcpip.ErrConnectStarted,
+	syscall.EDESTADDRREQ:  tcpip.ErrDestinationRequired,
+	syscall.ENOTSUP:       tcpip.ErrNotSupported,
+	syscall.ENOTTY:        tcpip.ErrQueueSizeNotSupported,
+	syscall.ENOTCONN:      tcpip.ErrNotConnected,
+	syscall.ECONNRESET:    tcpip.ErrConnectionReset,
+	syscall.ECONNABORTED:  tcpip.ErrConnectionAborted,
+}
+
+// TranslateErrno translate an errno from the syscall package into a
+// *tcpip.Error.
+//
+// Not all errnos are supported and this function will panic on unreconized
+// errnos.
+func TranslateErrno(e syscall.Errno) *tcpip.Error {
+	if err, ok := translations[e]; ok {
+		return err
+	}
+	return tcpip.ErrInvalidEndpointState
+}