From 5946f111827fa4e342a2e6e9c043c198d2e5cb03 Mon Sep 17 00:00:00 2001
From: Bhasker Hariharan <bhaskerh@google.com>
Date: Thu, 9 Jul 2020 16:24:43 -0700
Subject: Add support for IP_HDRINCL IP option for raw sockets.

Updates #2746
Fixes #3158

PiperOrigin-RevId: 320497190
---
 pkg/sentry/socket/netstack/netstack.go | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'pkg/sentry/socket')

diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go
index e7d2c83d7..3b248a953 100644
--- a/pkg/sentry/socket/netstack/netstack.go
+++ b/pkg/sentry/socket/netstack/netstack.go
@@ -2112,13 +2112,22 @@ func setSockOptIP(t *kernel.Task, ep commonEndpoint, name int, optVal []byte) *s
 		}
 		return syserr.TranslateNetstackError(ep.SetSockOptBool(tcpip.ReceiveIPPacketInfoOption, v != 0))
 
+	case linux.IP_HDRINCL:
+		if len(optVal) == 0 {
+			return nil
+		}
+		v, err := parseIntOrChar(optVal)
+		if err != nil {
+			return err
+		}
+		return syserr.TranslateNetstackError(ep.SetSockOptBool(tcpip.IPHdrIncludedOption, v != 0))
+
 	case linux.IP_ADD_SOURCE_MEMBERSHIP,
 		linux.IP_BIND_ADDRESS_NO_PORT,
 		linux.IP_BLOCK_SOURCE,
 		linux.IP_CHECKSUM,
 		linux.IP_DROP_SOURCE_MEMBERSHIP,
 		linux.IP_FREEBIND,
-		linux.IP_HDRINCL,
 		linux.IP_IPSEC_POLICY,
 		linux.IP_MINTTL,
 		linux.IP_MSFILTER,
-- 
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