sk: Support SO_NO_CHECK option

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

protobuf/sk-opts.proto

@@ -14,4 +14,5 @@ message sk_opts_entry {
 	optional bool		so_passcred	= 11;
 	optional bool		so_passsec	= 12;
 	optional bool		so_dontroute	= 13;
+	optional bool		so_no_check	= 14;
 }

sockets.c

@@ -105,6 +105,11 @@ int restore_socket_opts(int sk, SkOptsEntry *soe)
 		pr_debug("\tset dontroute for socket\n");
 		ret |= restore_opt(sk, SOL_SOCKET, SO_DONTROUTE, &val);
 	}
+	if (soe->has_so_no_check && soe->so_no_check) {
+		val = 1;
+		pr_debug("\tset no_check for socket\n");
+		ret |= restore_opt(sk, SOL_SOCKET, SO_NO_CHECK, &val);
+	}
 
 	tv.tv_sec = soe->so_snd_tmo_sec;
 	tv.tv_usec = soe->so_snd_tmo_usec;
@@ -175,6 +180,10 @@ int dump_socket_opts(int sk, SkOptsEntry *soe)
 	soe->has_so_dontroute = true;
 	soe->so_dontroute = val ? true : false;
 
+	ret |= dump_opt(sk, SOL_SOCKET, SO_NO_CHECK, &val);
+	soe->has_so_no_check = true;
+	soe->so_no_check = val ? true : false;
+
 	return ret;
 }
 

test/zdtm/live/static/sock_opts00.c

@@ -12,7 +12,7 @@ const char *test_author	= "Pavel Emelyanov <xemul@parallels.com>";
 #define TEST_PORT 59687
 #define TEST_ADDR INADDR_ANY
 
-#define NOPTS	6
+#define NOPTS	7
 
 int main(int argc, char ** argv)
 {
@@ -25,6 +25,7 @@ int main(int argc, char ** argv)
 	vname[3] = SO_PASSCRED;
 	vname[4] = SO_PASSSEC;
 	vname[5] = SO_DONTROUTE;
+	vname[6] = SO_NO_CHECK;
 
 	test_init(argc, argv);