diff options
author | Ben Pfaff <blp@nicira.com> | 2012-02-10 13:30:23 -0800 |
---|---|---|
committer | Ben Pfaff <blp@nicira.com> | 2012-03-07 13:59:02 -0800 |
commit | 27527aa09ce456796eeea728cef9528aa5612b70 (patch) | |
tree | fe9f12d78b25a5520a25b6cec7e3dd5b2727ea20 /lib/vconn.h | |
parent | 032f3fbd856864cdcbdf505d404e826999b8a2ae (diff) |
Introduce ofputil_protocol, to abstract the protocol in use on a connection.
Open vSwitch already handles a few different protocol variations, but it
does so in a nonuniform manner:
- OpenFlow 1.0 and NXM flow formats are distinguished using the NXFF_*
constant values from nicira-ext.h.
- The "flow_mod_table_id" feature setting is maintained in ofproto as
part of an OpenFlow connection's (ofconn's) state.
There's no way to easily communicate this state among components. It's
not much of a problem yet, but as more protocol support is added it seems
better to have an abstract, uniform way to represent protocol versions and
variants. This commit implements that by introducing a new type
"enum ofputil_protocol". Each ofputil_protocol value represents a variant
of a protocol version. Each value is a separate bit, so a single enum
can also represent a set of protocols, which is often useful as well.
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Diffstat (limited to 'lib/vconn.h')
-rw-r--r-- | lib/vconn.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/vconn.h b/lib/vconn.h index 74b6b49c..516e2d3a 100644 --- a/lib/vconn.h +++ b/lib/vconn.h @@ -40,6 +40,7 @@ ovs_be32 vconn_get_remote_ip(const struct vconn *); ovs_be16 vconn_get_remote_port(const struct vconn *); ovs_be32 vconn_get_local_ip(const struct vconn *); ovs_be16 vconn_get_local_port(const struct vconn *); +int vconn_get_version(const struct vconn *); int vconn_connect(struct vconn *); int vconn_recv(struct vconn *, struct ofpbuf **); int vconn_send(struct vconn *, struct ofpbuf *); |