patch-reuseport_lb
ae (Andrey V. Elsukov)
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	ae
	Oct 5 2020, 1:54 PM

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patch-reuseport_lb
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	--- src/openvpn/options.c 2019-05-16 14:22:26.171060000 +0300
	+++ src/openvpn/options.c 2019-05-16 15:24:34.439341000 +0300
	@@ -5820,6 +5820,10 @@
	{
	options->sockflags \|= SF_TCP_NODELAY;
	}
	+ else if (streq(p[j], "SO_REUSEPORT_LB"))
	+ {
	+ options->sockflags \|= SF_USE_REUSEPORT_LB;
	+ }
	else
	{
	msg(msglevel, "unknown socket flag: %s", p[j]);
	--- src/openvpn/socket.c 2019-05-16 14:22:26.150629000 +0300
	+++ src/openvpn/socket.c 2019-05-16 15:41:38.422233000 +0300
	@@ -1070,7 +1070,16 @@
	}
	}
	#endif /* if ENABLE_IP_PKTINFO */
	-
	+#ifdef SO_REUSEPORT_LB
	+ if (flags & SF_USE_REUSEPORT_LB){
	+ int on = 1;
	+ if (setsockopt(sd, SOL_SOCKET, SO_REUSEPORT_LB,
	+ (void *) &on, sizeof(on)) < 0)
	+ {
	+ msg(M_ERR, "UDP: Cannot setsockopt SO_REUSEPORT_LB on UDP socket");
	+ }
	+ }
	+#endif /* if SO_REUSEPORT_LB */
	/* set socket file descriptor to not pass across execs, so that
	* scripts don't have access to it */
	set_cloexec(sd);
	--- src/openvpn/socket.h 2019-05-16 14:22:26.185056000 +0300
	+++ src/openvpn/socket.h 2019-05-16 15:22:00.221319000 +0300
	@@ -210,6 +210,7 @@
	#define SF_PORT_SHARE (1<<2)
	#define SF_HOST_RANDOMIZE (1<<3)
	#define SF_GETADDRINFO_DGRAM (1<<4)
	+#define SF_USE_REUSEPORT_LB (1<<5)
	unsigned int sockflags;
	int mark;