From abbdcebc543242862fad0984db2db0a842021917 Mon Sep 17 00:00:00 2001
From: Kevin Krakauer <krakauer@google.com>
Date: Mon, 8 Mar 2021 20:37:14 -0800
Subject: Implement /proc/sys/net/ipv4/ip_local_port_range

Speeds up the socket stress tests by a couple orders of magnitude.

PiperOrigin-RevId: 361721050
---
 pkg/sentry/socket/netstack/stack.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'pkg/sentry/socket/netstack')

diff --git a/pkg/sentry/socket/netstack/stack.go b/pkg/sentry/socket/netstack/stack.go
index 71c3bc034..b215067cf 100644
--- a/pkg/sentry/socket/netstack/stack.go
+++ b/pkg/sentry/socket/netstack/stack.go
@@ -478,3 +478,13 @@ func (s *Stack) SetForwarding(protocol tcpip.NetworkProtocolNumber, enable bool)
 	}
 	return nil
 }
+
+// PortRange implements inet.Stack.PortRange.
+func (s *Stack) PortRange() (uint16, uint16) {
+	return s.Stack.PortRange()
+}
+
+// SetPortRange implements inet.Stack.SetPortRange.
+func (s *Stack) SetPortRange(start uint16, end uint16) error {
+	return syserr.TranslateNetstackError(s.Stack.SetPortRange(start, end)).ToError()
+}
-- 
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