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rconn: Add allowed OpenFlow versions

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Add allowed OpenFlow versions to struct rconn to allow
reconnect to use these parameters rather than hard-coded defaults.

This is in preparation for allowing configuration of the
allowed OpenFlow versions.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Simon Horman
2012-11-07 17:03:00 +09:00
committed by Ben Pfaff
parent 681ea7a0e9
commit 6042457bd5
4 changed files with 24 additions and 7 deletions
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20
lib/rconn.c
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@@ -131,6 +131,8 @@ struct rconn {
#define MAX_MONITORS 8
struct vconn *monitors[8];
size_t n_monitors;
uint32_t allowed_versions;
};
static unsigned int elapsed_in_this_state(const struct rconn *);
@@ -163,9 +165,17 @@ static bool rconn_logging_connection_attempts__(const struct rconn *);
* 8 seconds is used.
*
* The new rconn is initially unconnected. Use rconn_connect() or
* rconn_connect_unreliably() to connect it. */
* rconn_connect_unreliably() to connect it.
*
* Connections made by the rconn will automatically negotiate an OpenFlow
* protocol version acceptable to both peers on the connection. The version
* negotiated will be one of those in the 'allowed_versions' bitmap:
* version 'x' is allowed if allowed_versions & (1 << x) is nonzero. If
* 'allowed_versions' is zero, then OFPUTIL_DEFAULT_VERSIONS are allowed.
**/
struct rconn *
rconn_create(int probe_interval, int max_backoff, uint8_t dscp)
rconn_create(int probe_interval, int max_backoff, uint8_t dscp,
uint32_t allowed_versions)
{
struct rconn *rc = xzalloc(sizeof *rc);
@@ -203,6 +213,9 @@ rconn_create(int probe_interval, int max_backoff, uint8_t dscp)
rconn_set_dscp(rc, dscp);
rc->n_monitors = 0;
rc->allowed_versions = allowed_versions
? allowed_versions
: OFPUTIL_DEFAULT_VERSIONS;
return rc;
}
@@ -354,7 +367,8 @@ reconnect(struct rconn *rc)
VLOG_INFO("%s: connecting...", rc->name);
}
rc->n_attempted_connections++;
retval = vconn_open(rc->target, 0, &rc->vconn, rc->dscp);
retval = vconn_open(rc->target, rc->allowed_versions,
&rc->vconn, rc->dscp);
if (!retval) {
rc->remote_ip = vconn_get_remote_ip(rc->vconn);
rc->local_ip = vconn_get_local_ip(rc->vconn);