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connmgr: Use version of underlying rconn

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Signed-off-by: Simon Horman <horms@verge.net.au>
[blp@nicira.com add OFPUTIL_P_NONE handling to ofconn_receives_async_msg()]
Signed-off-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Ben Pfaff
2012-11-19 09:49:13 -08:00
parent e3d560dbe9
commit eb12aa89e7
2 changed files with 22 additions and 6 deletions
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1
lib/ofp-util.h
View File

@@ -69,6 +69,7 @@ enum ofputil_protocol {
* The protocols with "TID" mean that the nx_flow_mod_table_id Nicira
* extension has been enabled. The other protocols have it disabled.
*/
#define OFPUTIL_P_NONE 0
OFPUTIL_P_OF10_STD = 1 << 0,
OFPUTIL_P_OF10_STD_TID = 1 << 1,
OFPUTIL_P_OF10_NXM = 1 << 2,

27
ofproto/connmgr.c
View File

@@ -840,10 +840,24 @@ ofconn_get_invalid_ttl_to_controller(struct ofconn *ofconn)
/* Returns the currently configured protocol for 'ofconn', one of OFPUTIL_P_*.
*
* The default, if no other format has been set, is OFPUTIL_P_OF10_STD. */
* Returns OFPUTIL_P_NONE, which is not a valid protocol, if 'ofconn' hasn't
* completed version negotiation. This can't happen if at least one OpenFlow
* message, other than OFPT_HELLO, has been received on the connection (such as
* in ofproto.c's message handling code), since version negotiation is a
* prerequisite for starting to receive messages. This means that
* OFPUTIL_P_NONE is a special case that most callers need not worry about. */
enum ofputil_protocol
ofconn_get_protocol(const struct ofconn *ofconn)
{
if (ofconn->protocol == OFPUTIL_P_NONE &&
rconn_is_connected(ofconn->rconn)) {
int version = rconn_get_version(ofconn->rconn);
if (version > 0) {
ofconn_set_protocol(CONST_CAST(struct ofconn *, ofconn),
ofputil_protocol_from_ofp_version(version));
}
}
return ofconn->protocol;
}
@@ -1034,7 +1048,7 @@ ofconn_flush(struct ofconn *ofconn)
int i;
ofconn->role = NX_ROLE_OTHER;
ofconn->protocol = OFPUTIL_P_OF10_STD;
ofconn_set_protocol(ofconn, OFPUTIL_P_NONE);
ofconn->packet_in_format = NXPIF_OPENFLOW10;
/* Disassociate 'ofconn' from all of the ofopgroups that it initiated that
@@ -1234,7 +1248,8 @@ ofconn_receives_async_msg(const struct ofconn *ofconn,
assert(reason < 32);
assert((unsigned int) type < OAM_N_TYPES);
if (!rconn_is_connected(ofconn->rconn)) {
if (ofconn_get_protocol(ofconn) == OFPUTIL_P_NONE
|| !rconn_is_connected(ofconn->rconn)) {
return false;
}
@@ -1317,7 +1332,7 @@ connmgr_send_port_status(struct connmgr *mgr,
if (ofconn_receives_async_msg(ofconn, OAM_PORT_STATUS, reason)) {
struct ofpbuf *msg;
msg = ofputil_encode_port_status(&ps, ofconn->protocol);
msg = ofputil_encode_port_status(&ps, ofconn_get_protocol(ofconn));
ofconn_send(ofconn, msg, NULL);
}
}
@@ -1340,7 +1355,7 @@ connmgr_send_flow_removed(struct connmgr *mgr,
* also prevents new flows from being added (and expiring). (It
* also prevents processing OpenFlow requests that would not add
* new flows, so it is imperfect.) */
msg = ofputil_encode_flow_removed(fr, ofconn->protocol);
msg = ofputil_encode_flow_removed(fr, ofconn_get_protocol(ofconn));
ofconn_send_reply(ofconn, msg);
}
}
@@ -1411,7 +1426,7 @@ schedule_packet_in(struct ofconn *ofconn, struct ofputil_packet_in pin)
* while (until a later call to pinsched_run()). */
pinsched_send(ofconn->schedulers[pin.reason == OFPR_NO_MATCH ? 0 : 1],
pin.fmd.in_port,
ofputil_encode_packet_in(&pin, ofconn->protocol,
ofputil_encode_packet_in(&pin, ofconn_get_protocol(ofconn),
ofconn->packet_in_format),
do_send_packet_in, ofconn);
}