/*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2015 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include "flow.h"
#include "mac-learning.h"
#include "odp-util.h"
-#include "ofp-util.h"
#include "ofpbuf.h"
+#include "ofp-actions.h"
+#include "ofp-util.h"
#include "ofproto.h"
+#include "ofproto-provider.h"
#include "pktbuf.h"
+#include "dp-packet.h"
#include "poll-loop.h"
-#include "private.h"
#include "rconn.h"
#include "timeval.h"
-#include "vconn.h"
-#include "vlog.h"
+#include "openvswitch/vconn.h"
+#include "openvswitch/vlog.h"
VLOG_DEFINE_THIS_MODULE(fail_open);
int last_disconn_secs;
long long int next_bogus_packet_in;
struct rconn_packet_counter *bogus_packet_counter;
+ bool fail_open_active;
};
static void fail_open_recover(struct fail_open *);
static void
send_bogus_packet_ins(struct fail_open *fo)
{
- uint8_t mac[ETH_ADDR_LEN];
- struct ofpbuf *opi;
- struct ofpbuf b;
-
- /* Compose ofp_packet_in. */
- ofpbuf_init(&b, 128);
- eth_addr_nicira_random(mac);
- compose_benign_packet(&b, "Open vSwitch Controller Probe", 0xa033, mac);
- opi = make_packet_in(pktbuf_get_null(), OFPP_LOCAL, OFPR_NO_MATCH, &b, 64);
- ofpbuf_uninit(&b);
-
- /* Send. */
- connmgr_broadcast(fo->connmgr, opi);
+ struct ofproto_packet_in pin;
+ struct eth_addr mac;
+ struct dp_packet b;
+
+ dp_packet_init(&b, 128);
+ eth_addr_nicira_random(&mac);
+ compose_rarp(&b, mac);
+
+ memset(&pin, 0, sizeof pin);
+ pin.up.packet = dp_packet_data(&b);
+ pin.up.packet_len = dp_packet_size(&b);
+ pin.up.reason = OFPR_NO_MATCH;
+ match_init_catchall(&pin.up.flow_metadata);
+ match_set_in_port(&pin.up.flow_metadata, OFPP_LOCAL);
+ pin.send_len = dp_packet_size(&b);
+ pin.miss_type = OFPROTO_PACKET_IN_NO_MISS;
+ connmgr_send_packet_in(fo->connmgr, &pin);
+
+ dp_packet_uninit(&b);
}
/* Enter fail-open mode if we should be in it. */
* controller, exits fail open mode. */
void
fail_open_maybe_recover(struct fail_open *fo)
+ OVS_EXCLUDED(ofproto_mutex)
{
if (fail_open_is_active(fo)
&& connmgr_is_any_controller_admitted(fo->connmgr)) {
static void
fail_open_recover(struct fail_open *fo)
+ OVS_EXCLUDED(ofproto_mutex)
{
- struct cls_rule rule;
+ struct match match;
VLOG_WARN("No longer in fail-open mode");
fo->last_disconn_secs = 0;
fo->next_bogus_packet_in = LLONG_MAX;
- cls_rule_init_catchall(&rule, FAIL_OPEN_PRIORITY);
- ofproto_delete_flow(fo->ofproto, &rule);
+ match_init_catchall(&match);
+ ofproto_delete_flow(fo->ofproto, &match, FAIL_OPEN_PRIORITY);
}
void
void
fail_open_flushed(struct fail_open *fo)
+ OVS_EXCLUDED(ofproto_mutex)
{
int disconn_secs = connmgr_failure_duration(fo->connmgr);
bool open = disconn_secs >= trigger_duration(fo);
if (open) {
- union ofp_action action;
- struct cls_rule rule;
+ struct ofpbuf ofpacts;
+ struct match match;
/* Set up a flow that matches every packet and directs them to
* OFPP_NORMAL. */
- memset(&action, 0, sizeof action);
- action.type = htons(OFPAT_OUTPUT);
- action.output.len = htons(sizeof action);
- action.output.port = htons(OFPP_NORMAL);
+ ofpbuf_init(&ofpacts, OFPACT_OUTPUT_SIZE);
+ ofpact_put_OUTPUT(&ofpacts)->port = OFPP_NORMAL;
+ ofpact_pad(&ofpacts);
- cls_rule_init_catchall(&rule, FAIL_OPEN_PRIORITY);
- ofproto_add_flow(fo->ofproto, &rule, &action, 1);
+ match_init_catchall(&match);
+ ofproto_add_flow(fo->ofproto, &match, FAIL_OPEN_PRIORITY,
+ ofpacts.data, ofpacts.size);
+
+ ofpbuf_uninit(&ofpacts);
}
+ fo->fail_open_active = open;
+}
+
+/* Returns the number of fail-open rules currently installed in the flow
+ * table. */
+int
+fail_open_count_rules(const struct fail_open *fo)
+{
+ return fo->fail_open_active != 0;
}
/* Creates and returns a new struct fail_open for 'ofproto' and 'mgr'. */
fo->last_disconn_secs = 0;
fo->next_bogus_packet_in = LLONG_MAX;
fo->bogus_packet_counter = rconn_packet_counter_create();
+ fo->fail_open_active = false;
return fo;
}
/* Destroys 'fo'. */
void
fail_open_destroy(struct fail_open *fo)
+ OVS_EXCLUDED(ofproto_mutex)
{
if (fo) {
if (fail_open_is_active(fo)) {