strongswan: Increase stroke buffer size to 8k

lfs/strongswan

@@ -78,6 +78,7 @@ $(subst %,%_MD5,$(objects)) :
 $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	@$(PREBUILD)
 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar axf $(DIR_DL)/$(DL_FILE)
+	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/strongswan-5.3.0-stroke-Increase-stroke-buffer-size-to-8k.patch
 	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/strongswan-ipfire.patch
 
 	cd $(DIR_APP) && [ -x "configure" ] || ./autogen.sh

src/patches/strongswan-5.3.0-stroke-Increase-stroke-buffer-size-to-8k.patch

@@ -0,0 +1,34 @@
+From 4b59d129fd1026bab37256af0df9ae7ace39e7ba Mon Sep 17 00:00:00 2001
+From: Michael Tremer <michael.tremer@ipfire.org>
+Date: Mon, 27 Apr 2015 18:49:45 +0200
+Subject: [PATCH] stroke: Increase stroke buffer size to 8k
+
+Complicated connections can have lots of arguments
+for the ike= and esp= directives in the ipsec.conf
+configuration file. strongSwan wouldn't import those
+because the size of the message that is send from
+stroke to charon exceeded the limit of 4k.
+
+This patch increases the size of the buffer that
+can be passed to charon to 8k which should be enough
+even for connections with longer configurations.
+---
+ src/stroke/stroke_msg.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/stroke/stroke_msg.h b/src/stroke/stroke_msg.h
+index c2b923f6db9a..c391efa00105 100644
+--- a/src/stroke/stroke_msg.h
++++ b/src/stroke/stroke_msg.h
+@@ -32,7 +32,7 @@
+  */
+ #define STROKE_SOCKET IPSEC_PIDDIR "/charon.ctl"
+ 
+-#define STROKE_BUF_LEN		4096
++#define STROKE_BUF_LEN		8192
+ 
+ typedef enum list_flag_t list_flag_t;
+ 
+-- 
+2.1.0
+