[MEDIUM] check for cttproxy support when required
Previously, use of the "usesrc" keyword could silently fail if
either the module was not loaded, or the user did not have enough
permissions. Now the errors are better diagnosed and more appropriate
advices are given.
diff --git a/include/proto/cttproxy.h b/include/proto/cttproxy.h
new file mode 100644
index 0000000..f343037
--- /dev/null
+++ b/include/proto/cttproxy.h
@@ -0,0 +1,47 @@
+/*
+ include/proto/cttproxy.h
+ This file contains prototypes for Linux's cttproxy interface.
+ This file should be included only if CTTPROXY is enabled.
+
+ Copyright (C) 2000-2007 Willy Tarreau - w@1wt.eu
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation, version 2.1
+ exclusively.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#ifndef _PROTO_CTTPROXY_H
+#define _PROTO_CTTPROXY_H
+
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <common/config.h>
+#include <import/ip_tproxy.h>
+
+/*
+ * Checks that CTTPROXY is available and in the right version.
+ * Returns 0 if OK, -1 if wrong version, -2 if not available or other error.
+ */
+int check_cttproxy_version();
+
+
+#endif /* _PROTO_CTTPROXY_H */
+
+/*
+ * Local variables:
+ * c-indent-level: 8
+ * c-basic-offset: 8
+ * End:
+ */