[ovs-dev] [PATCH] openflow-common: Describe length and padding rules for OpenFlow properties.
Ben Pfaff
blp at ovn.org
Tue Feb 16 23:33:54 UTC 2016
I keep having to rediscover these from the code. This is easier.
Signed-off-by: Ben Pfaff <blp at ovn.org>
---
include/openflow/openflow-common.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/openflow/openflow-common.h b/include/openflow/openflow-common.h
index da2b7a5..8859400 100644
--- a/include/openflow/openflow-common.h
+++ b/include/openflow/openflow-common.h
@@ -221,6 +221,9 @@ enum ofp_port_features {
struct ofp_prop_header {
ovs_be16 type;
ovs_be16 len;
+ /* Followed by:
+ * - 'len - 4' bytes of payload.
+ * - PAD_SIZE(len, 8) bytes of zeros. */
};
OFP_ASSERT(sizeof(struct ofp_prop_header) == 4);
@@ -234,6 +237,9 @@ struct ofp_prop_experimenter {
ovs_be32 experimenter; /* Experimenter ID which takes the same form as
* in struct ofp_experimenter_header. */
ovs_be32 exp_type; /* Experimenter defined. */
+ /* Followed by:
+ * - 'len - 12' bytes of payload.
+ * - PAD_SIZE(len, 8) bytes of zeros. */
};
OFP_ASSERT(sizeof(struct ofp_prop_experimenter) == 12);
--
2.1.3
More information about the dev
mailing list