[ovs-dev] [PATCH 1/4] Upcall NL packet format: Add NL utilities
Eitan Eliahu
eliahue at vmware.com
Wed Oct 15 08:41:07 UTC 2014
Add NlAttrSize and NlAttrTotalSize
Signed-off-by: Eitan Eliahu <eliahue at vmware.com>
Acked-by: Ankur Sharma <ankursharma at vmware.com>
Acked-by: Nithin Raju <nithin at vmware.com>
---
datapath-windows/ovsext/Netlink/Netlink.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/datapath-windows/ovsext/Netlink/Netlink.h b/datapath-windows/ovsext/Netlink/Netlink.h
index cd55647..438d857 100644
--- a/datapath-windows/ovsext/Netlink/Netlink.h
+++ b/datapath-windows/ovsext/Netlink/Netlink.h
@@ -137,6 +137,28 @@ NlAttrLen(const PNL_ATTR nla)
return nla->nlaLen;
}
+/*
+ * ---------------------------------------------------------------------------
+ * Default maximum payload size for each type of attribute.
+ * ---------------------------------------------------------------------------
+ */
+UINT32
+static __inline NlAttrSize(UINT32 payloadSize)
+{
+ return NLA_HDRLEN + payloadSize;
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * Total length including padding.
+ * ---------------------------------------------------------------------------
+ */
+UINT32
+static __inline NlAttrTotalSize(UINT32 payloadSize)
+{
+ return NLA_ALIGN(NlAttrSize(payloadSize));
+}
+
/* Netlink attribute validation */
BOOLEAN NlAttrValidate(const PNL_ATTR, const PNL_POLICY);
--
1.9.4.msysgit.0
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