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authorIan Gudger <igudger@google.com>2020-06-12 20:47:28 -0700
committergVisor bot <gvisor-bot@google.com>2020-06-12 20:49:02 -0700
commit3b5eaad3c8b49367d1812dbaf4182fc7282b7f00 (patch)
treed0da6ed755e24b79800a4b03a8b96fdf5a0c358f /pkg
parent82313667ea4bd56d64dd1f7898aa80942684ca2c (diff)
Allow reading IP_MULTICAST_LOOP and IP_MULTICAST_TTL on TCP sockets.
I am not really sure what the point of this is, but someone filed a bug about it, so I assume something relies on it. PiperOrigin-RevId: 316225127
Diffstat (limited to 'pkg')
-rw-r--r--pkg/tcpip/transport/tcp/endpoint.go6
1 files changed, 6 insertions, 0 deletions
diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go
index 6e4d607da..f225b00e7 100644
--- a/pkg/tcpip/transport/tcp/endpoint.go
+++ b/pkg/tcpip/transport/tcp/endpoint.go
@@ -1855,6 +1855,9 @@ func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
return v, nil
+ case tcpip.MulticastLoopOption:
+ return true, nil
+
default:
return false, tcpip.ErrUnknownProtocolOption
}
@@ -1922,6 +1925,9 @@ func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
e.UnlockUser()
return v, nil
+ case tcpip.MulticastTTLOption:
+ return 1, nil
+
default:
return -1, tcpip.ErrUnknownProtocolOption
}