l4p: add ability to assign user-data to the stream

Add ability for the user to assign user provided data to the stream.
Right now this user provided 64-bit value is passed as a parameter
for lookup4/lookup6 callbacks.
Another change: change interpretation of lookup4()/lookup6() return value:
<  0: error code (existing behaviour).
== 0: success, TLDK will update L3 header src/dst addresses based on
      tldk dev values (existing behaviour).
>  0: success, TLDK will not update L3 header src/dst addresses, will
      rely on user provided values.

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Change-Id: I32521422e0372d79c4b2781dd6fc9740e4ca93ab

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/libtle_l4p/tle_ctx.h b/lib/libtle_l4p/tle_ctx.h
index 391cfe3..e730441 100644
--- a/lib/libtle_l4p/tle_ctx.h
+++ b/lib/libtle_l4p/tle_ctx.h
@@ -123,14 +123,14 @@ struct tle_ctx_param {
 	uint32_t send_bulk_size;   /**< expected # of packets per send call. */
 	uint32_t flags;            /**< specific flags */
 
-	int (*lookup4)(void *opaque, const struct in_addr *addr,
-		struct tle_dest *res);
+	int (*lookup4)(void *opaque, uint64_t stream_udata,
+		const struct in_addr *addr, struct tle_dest *res);
 	/**< will be called by send() to get IPv4 packet destination info. */
 	void *lookup4_data;
 	/**< opaque data pointer for lookup4() callback. */
 
-	int (*lookup6)(void *opaque, const struct in6_addr *addr,
-		struct tle_dest *res);
+	int (*lookup6)(void *opaque, uint64_t stream_udata,
+		const struct in6_addr *addr, struct tle_dest *res);
 	/**< will be called by send() to get IPv6 packet destination info. */
 	void *lookup6_data;
 	/**< opaque data pointer for lookup6() callback. */