/*
- * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#define OFCONN_REPLY_MAX 100
struct rconn_packet_counter *reply_counter;
- /* Asynchronous message configuration in each possible roles.
+ /* Asynchronous message configuration in each possible role.
*
* A 1-bit enables sending an asynchronous message for one possible reason
* that the message might be generated, a 0-bit disables it. */
- uint32_t master_async_config[OAM_N_TYPES]; /* master, other */
- uint32_t slave_async_config[OAM_N_TYPES]; /* slave */
+ struct ofputil_async_cfg *async_cfg;
/* Flow table operation logging. */
int n_add, n_delete, n_modify; /* Number of unreported ops of each kind. */
struct pinsched_stats stats;
pinsched_get_stats(ofconn->schedulers[i], &stats);
- packets += stats.n_queued;;
+ packets += stats.n_queued;
}
packets += pktbuf_count_packets(ofconn->pktbuf);
}
void
ofconn_set_invalid_ttl_to_controller(struct ofconn *ofconn, bool enable)
{
+ struct ofputil_async_cfg ac = ofconn_get_async_config(ofconn);
uint32_t bit = 1u << OFPR_INVALID_TTL;
if (enable) {
- ofconn->master_async_config[OAM_PACKET_IN] |= bit;
+ ac.master[OAM_PACKET_IN] |= bit;
} else {
- ofconn->master_async_config[OAM_PACKET_IN] &= ~bit;
+ ac.master[OAM_PACKET_IN] &= ~bit;
}
+ ofconn_set_async_config(ofconn, &ac);
}
bool
ofconn_get_invalid_ttl_to_controller(struct ofconn *ofconn)
{
+ struct ofputil_async_cfg ac = ofconn_get_async_config(ofconn);
uint32_t bit = 1u << OFPR_INVALID_TTL;
- return (ofconn->master_async_config[OAM_PACKET_IN] & bit) != 0;
+ return (ac.master[OAM_PACKET_IN] & bit) != 0;
}
/* Returns the currently configured protocol for 'ofconn', one of OFPUTIL_P_*.
ofconn_set_protocol(struct ofconn *ofconn, enum ofputil_protocol protocol)
{
ofconn->protocol = protocol;
- if (!(protocol & OFPUTIL_P_OF14_UP)) {
- uint32_t *master = ofconn->master_async_config;
- uint32_t *slave = ofconn->slave_async_config;
-
- /* OFPR_ACTION_SET is not supported before OF1.4 */
- master[OAM_PACKET_IN] &= ~(1u << OFPR_ACTION_SET);
- slave [OAM_PACKET_IN] &= ~(1u << OFPR_ACTION_SET);
-
- /* OFPR_GROUP is not supported before OF1.4 */
- master[OAM_PACKET_IN] &= ~(1u << OFPR_GROUP);
- slave [OAM_PACKET_IN] &= ~(1u << OFPR_GROUP);
- }
}
/* Returns the currently configured packet in format for 'ofconn', one of
* NXPIF_*.
*
- * The default, if no other format has been set, is NXPIF_OPENFLOW10. */
+ * The default, if no other format has been set, is NXPIF_STANDARD. */
enum nx_packet_in_format
ofconn_get_packet_in_format(struct ofconn *ofconn)
{
void
ofconn_set_async_config(struct ofconn *ofconn,
- const uint32_t master_masks[OAM_N_TYPES],
- const uint32_t slave_masks[OAM_N_TYPES])
+ const struct ofputil_async_cfg *ac)
{
- size_t size = sizeof ofconn->master_async_config;
- memcpy(ofconn->master_async_config, master_masks, size);
- memcpy(ofconn->slave_async_config, slave_masks, size);
+ if (!ofconn->async_cfg) {
+ ofconn->async_cfg = xmalloc(sizeof *ofconn->async_cfg);
+ }
+ *ofconn->async_cfg = *ac;
}
-void
-ofconn_get_async_config(struct ofconn *ofconn,
- uint32_t *master_masks, uint32_t *slave_masks)
+struct ofputil_async_cfg
+ofconn_get_async_config(const struct ofconn *ofconn)
{
- size_t size = sizeof ofconn->master_async_config;
-
- /* Make sure we know the protocol version and the async_config
- * masks are properly updated by calling ofconn_get_protocol() */
- if (OFPUTIL_P_NONE == ofconn_get_protocol(ofconn)){
- OVS_NOT_REACHED();
+ if (ofconn->async_cfg) {
+ return *ofconn->async_cfg;
}
- memcpy(master_masks, ofconn->master_async_config, size);
- memcpy(slave_masks, ofconn->slave_async_config, size);
+ int version = rconn_get_version(ofconn->rconn);
+ return (version < 0 || !ofconn->enable_async_msgs
+ ? OFPUTIL_ASYNC_CFG_INIT
+ : ofputil_async_cfg_default(version));
}
/* Sends 'msg' on 'ofconn', accounting it as a reply. (If there is a
ofconn->role = OFPCR12_ROLE_EQUAL;
ofconn_set_protocol(ofconn, OFPUTIL_P_NONE);
- ofconn->packet_in_format = NXPIF_OPENFLOW10;
+ ofconn->packet_in_format = NXPIF_STANDARD;
rconn_packet_counter_destroy(ofconn->packet_in_counter);
ofconn->packet_in_counter = rconn_packet_counter_create();
rconn_packet_counter_destroy(ofconn->reply_counter);
ofconn->reply_counter = rconn_packet_counter_create();
- if (ofconn->enable_async_msgs) {
- uint32_t *master = ofconn->master_async_config;
- uint32_t *slave = ofconn->slave_async_config;
-
- /* "master" and "other" roles get all asynchronous messages by default,
- * except that the controller needs to enable nonstandard "packet-in"
- * reasons itself. */
- master[OAM_PACKET_IN] = ((1u << OFPR_NO_MATCH)
- | (1u << OFPR_ACTION)
- | (1u << OFPR_ACTION_SET)
- | (1u << OFPR_GROUP));
- master[OAM_PORT_STATUS] = ((1u << OFPPR_ADD)
- | (1u << OFPPR_DELETE)
- | (1u << OFPPR_MODIFY));
- master[OAM_FLOW_REMOVED] = ((1u << OFPRR_IDLE_TIMEOUT)
- | (1u << OFPRR_HARD_TIMEOUT)
- | (1u << OFPRR_DELETE));
-
- /* "slave" role gets port status updates by default. */
- slave[OAM_PACKET_IN] = 0;
- slave[OAM_PORT_STATUS] = ((1u << OFPPR_ADD)
- | (1u << OFPPR_DELETE)
- | (1u << OFPPR_MODIFY));
- slave[OAM_FLOW_REMOVED] = 0;
- } else {
- memset(ofconn->master_async_config, 0,
- sizeof ofconn->master_async_config);
- memset(ofconn->slave_async_config, 0,
- sizeof ofconn->slave_async_config);
- }
+ free(ofconn->async_cfg);
+ ofconn->async_cfg = NULL;
ofconn->n_add = ofconn->n_delete = ofconn->n_modify = 0;
ofconn->first_op = ofconn->last_op = LLONG_MIN;
* 'ofconn'. */
static bool
ofconn_receives_async_msg(const struct ofconn *ofconn,
- enum ofconn_async_msg_type type,
+ enum ofputil_async_msg_type type,
unsigned int reason)
{
- const uint32_t *async_config;
-
ovs_assert(reason < 32);
ovs_assert((unsigned int) type < OAM_N_TYPES);
- if (ofconn_get_protocol(ofconn) == OFPUTIL_P_NONE
- || !rconn_is_connected(ofconn->rconn)) {
- return false;
- }
-
/* Keep the following code in sync with the documentation in the
* "Asynchronous Messages" section in DESIGN. */
return false;
}
- async_config = (ofconn->role == OFPCR12_ROLE_SLAVE
- ? ofconn->slave_async_config
- : ofconn->master_async_config);
- if (!(async_config[type] & (1u << reason))) {
- return false;
- }
-
- return true;
-}
-
-/* The default "table-miss" behaviour for OpenFlow1.3+ is to drop the
- * packet rather than to send the packet to the controller.
- *
- * This function returns false to indicate the packet should be dropped if
- * the controller action was the result of the default table-miss behaviour
- * and the controller is using OpenFlow1.3+.
- *
- * Otherwise true is returned to indicate the packet should be forwarded to
- * the controller */
-static bool
-ofconn_wants_packet_in_on_miss(struct ofconn *ofconn,
- const struct ofproto_packet_in *pin)
-{
- if (pin->miss_type == OFPROTO_PACKET_IN_MISS_WITHOUT_FLOW) {
- enum ofputil_protocol protocol = ofconn_get_protocol(ofconn);
-
- if (protocol != OFPUTIL_P_NONE
- && ofputil_protocol_to_ofp_version(protocol) >= OFP13_VERSION
- && (ofproto_table_get_miss_config(ofconn->connmgr->ofproto,
- pin->up.table_id)
- == OFPUTIL_TABLE_MISS_DEFAULT)) {
- return false;
- }
- }
- return true;
+ struct ofputil_async_cfg ac = ofconn_get_async_config(ofconn);
+ uint32_t *masks = (ofconn->role == OFPCR12_ROLE_SLAVE
+ ? ac.slave
+ : ac.master);
+ return (masks[type] & (1u << reason)) != 0;
}
/* The default "table-miss" behaviour for OpenFlow1.3+ is to drop the
\f
/* Sending asynchronous messages. */
-static void schedule_packet_in(struct ofconn *, struct ofproto_packet_in,
- enum ofp_packet_in_reason wire_reason);
-
/* Sends an OFPT_PORT_STATUS message with 'opp' and 'reason' to appropriate
* controllers managed by 'mgr'. For messages caused by a controller
* OFPT_PORT_MOD, specify 'source' as the controller connection that sent the
}
}
+/* Sends an OFPT_REQUESTFORWARD message with 'request' and 'reason' to
+ * appropriate controllers managed by 'mgr'. For messages caused by a
+ * controller OFPT_GROUP_MOD and OFPT_METER_MOD, specify 'source' as the
+ * controller connection that sent the request; otherwise, specify 'source'
+ * as NULL. */
+void
+connmgr_send_requestforward(struct connmgr *mgr, const struct ofconn *source,
+ const struct ofputil_requestforward *rf)
+{
+ struct ofconn *ofconn;
+
+ LIST_FOR_EACH (ofconn, node, &mgr->all_conns) {
+ if (ofconn_receives_async_msg(ofconn, OAM_REQUESTFORWARD, rf->reason)
+ && rconn_get_version(ofconn->rconn) >= OFP14_VERSION
+ && ofconn != source) {
+ enum ofputil_protocol protocol = ofconn_get_protocol(ofconn);
+ ofconn_send(ofconn, ofputil_encode_requestforward(rf, protocol),
+ NULL);
+ }
+ }
+}
+
/* Sends an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message based on 'fr' to
* appropriate controllers managed by 'mgr'. */
void
}
}
-/* Normally a send-to-controller action uses reason OFPR_ACTION. However, in
- * OpenFlow 1.3 and later, packet_ins generated by a send-to-controller action
- * in a "table-miss" flow (one with priority 0 and completely wildcarded) are
- * sent as OFPR_NO_MATCH. This function returns the reason that should
- * actually be sent on 'ofconn' for 'pin'. */
-static enum ofp_packet_in_reason
-wire_reason(struct ofconn *ofconn, const struct ofproto_packet_in *pin)
+/* Sends an OFPT_TABLE_STATUS message with 'reason' to appropriate controllers
+ * managed by 'mgr'. When the table state changes, the controller needs to be
+ * informed with the OFPT_TABLE_STATUS message. The reason values
+ * OFPTR_VACANCY_DOWN and OFPTR_VACANCY_UP identify a vacancy message. The
+ * vacancy events are generated when the remaining space in the flow table
+ * changes and crosses one of the vacancy thereshold specified by
+ * OFPT_TABLE_MOD. */
+void
+connmgr_send_table_status(struct connmgr *mgr,
+ const struct ofputil_table_desc *td,
+ uint8_t reason)
{
- enum ofputil_protocol protocol = ofconn_get_protocol(ofconn);
+ struct ofputil_table_status ts;
+ struct ofconn *ofconn;
- if (pin->miss_type == OFPROTO_PACKET_IN_MISS_FLOW
- && pin->up.reason == OFPR_ACTION
- && protocol != OFPUTIL_P_NONE
- && ofputil_protocol_to_ofp_version(protocol) >= OFP13_VERSION) {
- return OFPR_NO_MATCH;
- }
+ ts.reason = reason;
+ ts.desc = *td;
+
+ LIST_FOR_EACH (ofconn, node, &mgr->all_conns) {
+ if (ofconn_receives_async_msg(ofconn, OAM_TABLE_STATUS, reason)) {
+ struct ofpbuf *msg;
- switch (pin->up.reason) {
- case OFPR_ACTION_SET:
- case OFPR_GROUP:
- case OFPR_PACKET_OUT:
- if (!(protocol & OFPUTIL_P_OF14_UP)) {
- /* Only supported in OF1.4+ */
- return OFPR_ACTION;
+ msg = ofputil_encode_table_status(&ts,
+ ofconn_get_protocol(ofconn));
+ if (msg) {
+ ofconn_send(ofconn, msg, NULL);
+ }
}
- /* Fall through. */
- case OFPR_NO_MATCH:
- case OFPR_ACTION:
- case OFPR_INVALID_TTL:
- case OFPR_N_REASONS:
- default:
- return pin->up.reason;
}
}
/* Given 'pin', sends an OFPT_PACKET_IN message to each OpenFlow controller as
- * necessary according to their individual configurations.
- *
- * The caller doesn't need to fill in pin->buffer_id or pin->total_len. */
+ * necessary according to their individual configurations. */
void
-connmgr_send_packet_in(struct connmgr *mgr,
- const struct ofproto_packet_in *pin)
+connmgr_send_async_msg(struct connmgr *mgr,
+ const struct ofproto_async_msg *am)
{
struct ofconn *ofconn;
LIST_FOR_EACH (ofconn, node, &mgr->all_conns) {
- enum ofp_packet_in_reason reason = wire_reason(ofconn, pin);
-
- if (ofconn_wants_packet_in_on_miss(ofconn, pin)
- && ofconn_receives_async_msg(ofconn, OAM_PACKET_IN, reason)
- && ofconn->controller_id == pin->controller_id) {
- schedule_packet_in(ofconn, *pin, reason);
+ enum ofputil_protocol protocol = ofconn_get_protocol(ofconn);
+ if (protocol == OFPUTIL_P_NONE || !rconn_is_connected(ofconn->rconn)
+ || ofconn->controller_id != am->controller_id
+ || !ofconn_receives_async_msg(ofconn, am->oam,
+ am->pin.up.public.reason)) {
+ continue;
}
+
+ struct ofpbuf *msg = ofputil_encode_packet_in_private(
+ &am->pin.up, protocol, ofconn->packet_in_format,
+ am->pin.max_len >= 0 ? am->pin.max_len : ofconn->miss_send_len,
+ ofconn->pktbuf);
+
+ struct ovs_list txq;
+ bool is_miss = (am->pin.up.public.reason == OFPR_NO_MATCH ||
+ am->pin.up.public.reason == OFPR_EXPLICIT_MISS ||
+ am->pin.up.public.reason == OFPR_IMPLICIT_MISS);
+ pinsched_send(ofconn->schedulers[is_miss],
+ am->pin.up.public.flow_metadata.flow.in_port.ofp_port,
+ msg, &txq);
+ do_send_packet_ins(ofconn, &txq);
}
}
}
}
}
-
-/* Takes 'pin', composes an OpenFlow packet-in message from it, and passes it
- * to 'ofconn''s packet scheduler for sending. */
-static void
-schedule_packet_in(struct ofconn *ofconn, struct ofproto_packet_in pin,
- enum ofp_packet_in_reason wire_reason)
-{
- struct connmgr *mgr = ofconn->connmgr;
- uint16_t controller_max_len;
- struct ovs_list txq;
-
- pin.up.total_len = pin.up.packet_len;
-
- pin.up.reason = wire_reason;
- if (pin.up.reason == OFPR_ACTION) {
- controller_max_len = pin.send_len; /* max_len */
- } else {
- controller_max_len = ofconn->miss_send_len;
- }
-
- /* Get OpenFlow buffer_id.
- * For OpenFlow 1.2+, OFPCML_NO_BUFFER (== UINT16_MAX) specifies
- * unbuffered. This behaviour doesn't violate prior versions, too. */
- if (controller_max_len == UINT16_MAX) {
- pin.up.buffer_id = UINT32_MAX;
- } else if (mgr->fail_open && fail_open_is_active(mgr->fail_open)) {
- pin.up.buffer_id = pktbuf_get_null();
- } else if (!ofconn->pktbuf) {
- pin.up.buffer_id = UINT32_MAX;
- } else {
- pin.up.buffer_id = pktbuf_save(ofconn->pktbuf,
- pin.up.packet, pin.up.packet_len,
- pin.up.flow_metadata.flow.in_port.ofp_port);
- }
-
- /* Figure out how much of the packet to send.
- * If not buffered, send the entire packet. Otherwise, depending on
- * the reason of packet-in, send what requested by the controller. */
- if (pin.up.buffer_id != UINT32_MAX
- && controller_max_len < pin.up.packet_len) {
- pin.up.packet_len = controller_max_len;
- }
-
- /* Make OFPT_PACKET_IN and hand over to packet scheduler. */
- pinsched_send(ofconn->schedulers[pin.up.reason == OFPR_NO_MATCH ? 0 : 1],
- pin.up.flow_metadata.flow.in_port.ofp_port,
- ofputil_encode_packet_in(&pin.up,
- ofconn_get_protocol(ofconn),
- ofconn->packet_in_format),
- &txq);
- do_send_packet_ins(ofconn, &txq);
-}
\f
/* Fail-open settings. */
ofpbuf_init(&ofpacts, OFPACT_OUTPUT_SIZE);
ofpact_put_OUTPUT(&ofpacts)->port = OFPP_NORMAL;
- ofpact_pad(&ofpacts);
match_init_catchall(&match);
ofproto_add_flow(mgr->ofproto, &match, 0, ofpacts.data,
}
ovs_mutex_unlock(&ofproto_mutex);
}
+
+void
+ofproto_async_msg_free(struct ofproto_async_msg *am)
+{
+ free(am->pin.up.public.packet);
+ free(am->pin.up.public.userdata);
+ free(am->pin.up.stack);
+ free(am->pin.up.actions);
+ free(am->pin.up.action_set);
+ free(am);
+}
projects / cascardo / ovs.git / blobdiff