-/* Copyright (C) 2007 Board of Trustees, Leland Stanford Jr. University.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
+/* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
+ * Junior University
+ *
+ * We are making the OpenFlow specification and associated documentation
+ * (Software) available for public use and benefit with the expectation
+ * that others will use, modify and enhance the Software and contribute
+ * those enhancements back to the community. However, since we would
+ * like to make the Software available for broadest use, with as few
+ * restrictions as possible permission is hereby granted, free of
+ * charge, to any person obtaining a copy of this Software to deal in
+ * the Software under the copyrights without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * The name and trademarks of copyright holder(s) may NOT be used in
+ * advertising or publicity pertaining to the Software or any
+ * derivatives without specific, written prior permission.
*/
#include <assert.h>
#include "flow.h"
#include "hash.h"
#include "list.h"
-#include "mac.h"
#include "ofp-print.h"
#include "openflow.h"
+#include "packets.h"
#include "poll-loop.h"
+#include "queue.h"
#include "time.h"
#include "util.h"
#include "vconn-ssl.h"
struct vconn *vconn;
uint64_t datapath_id;
- time_t last_control_hello;
+ time_t last_features_request;
- int n_txq;
- struct buffer *txq, *tx_tail;
+ struct queue txq;
};
/* -H, --hub: Use dumb hub instead of learning switch? */
static void queue_tx(struct switch_ *, struct buffer *);
-static void send_control_hello(struct switch_ *);
+static void send_features_request(struct switch_ *);
static int do_switch_recv(struct switch_ *this);
static int do_switch_send(struct switch_ *this);
if (retval) {
break;
}
+ printf("accept!\n");
switches[n_switches++] = new_switch("tcp", new_vconn);
}
} else {
}
} else {
vconn_recv_wait(this->vconn);
- if (this->n_txq) {
+ if (this->txq.n) {
vconn_send_wait(this->vconn);
}
}
do_switch_send(struct switch_ *this)
{
int retval = 0;
- if (this->n_txq) {
- struct buffer *next = this->txq->next;
-
- retval = vconn_send(this->vconn, this->txq);
+ if (this->txq.n) {
+ struct buffer *next = this->txq.head->next;
+ retval = vconn_send(this->vconn, this->txq.head);
if (retval) {
return retval;
}
-
- this->txq = next;
- if (this->txq == NULL) {
- this->tx_tail = NULL;
- }
- this->n_txq--;
+ queue_advance_head(&this->txq, next);
return 0;
}
return EAGAIN;
memset(this, 0, sizeof *this);
this->name = xstrdup(name);
this->vconn = vconn;
- this->n_txq = 0;
- this->txq = NULL;
- this->tx_tail = NULL;
- this->last_control_hello = 0;
+ queue_init(&this->txq);
+ this->last_features_request = 0;
if (!vconn_is_passive(vconn)) {
- send_control_hello(this);
+ send_features_request(this);
}
return this;
}
close_switch(struct switch_ *this)
{
if (this) {
- struct buffer *cur, *next;
-
+ printf("dropped!\n");
free(this->name);
vconn_close(this->vconn);
- for (cur = this->txq; cur != NULL; cur = next) {
- next = cur->next;
- buffer_delete(cur);
- }
+ queue_destroy(&this->txq);
free(this);
}
}
static void
-send_control_hello(struct switch_ *this)
+send_features_request(struct switch_ *this)
{
time_t now = time(0);
- if (now >= this->last_control_hello + 1) {
+ if (now >= this->last_features_request + 1) {
struct buffer *b;
- struct ofp_control_hello *och;
+ struct ofp_header *ofr;
+ struct ofp_switch_config *osc;
+ /* Send OFPT_SET_CONFIG. */
b = buffer_new(0);
- och = buffer_put_uninit(b, sizeof *och);
- memset(och, 0, sizeof *och);
- och->header.version = OFP_VERSION;
- och->header.length = htons(sizeof *och);
-
- och->version = htonl(OFP_VERSION);
- och->flags = htons(OFP_CHELLO_SEND_FLOW_EXP);
- och->miss_send_len = htons(OFP_DEFAULT_MISS_SEND_LEN);
+ osc = buffer_put_uninit(b, sizeof *osc);
+ memset(osc, 0, sizeof *osc);
+ osc->header.type = OFPT_SET_CONFIG;
+ osc->header.version = OFP_VERSION;
+ osc->header.length = htons(sizeof *osc);
+ osc->flags = htons(OFPC_SEND_FLOW_EXP);
+ osc->miss_send_len = htons(OFP_DEFAULT_MISS_SEND_LEN);
queue_tx(this, b);
- this->last_control_hello = now;
- }
-}
+ /* Send OFPT_FEATURES_REQUEST. */
+ b = buffer_new(0);
+ ofr = buffer_put_uninit(b, sizeof *ofr);
+ memset(ofr, 0, sizeof *ofr);
+ ofr->type = OFPT_FEATURES_REQUEST;
+ ofr->version = OFP_VERSION;
+ ofr->length = htons(sizeof *ofr);
+ queue_tx(this, b);
-static void
-check_txq(struct switch_ *this UNUSED)
-{
-#if 0
- struct buffer *iter;
- size_t n;
-
- assert(this->n_txq == 0
- ? this->txq == NULL && this->tx_tail == NULL
- : this->txq != NULL && this->tx_tail != NULL);
-
- n = 0;
- for (iter = this->txq; iter != NULL; iter = iter->next) {
- n++;
- assert((iter->next != NULL) == (iter != this->tx_tail));
+ this->last_features_request = now;
}
- assert(n == this->n_txq);
-#endif
}
static void
queue_tx(struct switch_ *this, struct buffer *b)
{
- check_txq(this);
-
- b->next = NULL;
- if (this->n_txq++) {
- this->tx_tail->next = b;
- } else {
- this->txq = b;
- }
- this->tx_tail = b;
-
- check_txq(this);
+ queue_push_tail(&this->txq, b);
}
static void
process_packet(struct switch_ *sw, struct buffer *msg)
{
static const size_t min_size[UINT8_MAX + 1] = {
- [0 ... UINT8_MAX] = SIZE_MAX,
- [OFPT_CONTROL_HELLO] = sizeof (struct ofp_control_hello),
- [OFPT_DATA_HELLO] = sizeof (struct ofp_data_hello),
+ [0 ... UINT8_MAX] = sizeof (struct ofp_header),
+ [OFPT_FEATURES_REPLY] = sizeof (struct ofp_switch_features),
[OFPT_PACKET_IN] = offsetof (struct ofp_packet_in, data),
- [OFPT_PACKET_OUT] = sizeof (struct ofp_packet_out),
- [OFPT_FLOW_MOD] = sizeof (struct ofp_flow_mod),
- [OFPT_FLOW_EXPIRED] = sizeof (struct ofp_flow_expired),
- [OFPT_TABLE] = sizeof (struct ofp_table),
- [OFPT_PORT_MOD] = sizeof (struct ofp_port_mod),
- [OFPT_PORT_STATUS] = sizeof (struct ofp_port_status),
- [OFPT_FLOW_STAT_REQUEST] = sizeof (struct ofp_flow_stat_request),
- [OFPT_FLOW_STAT_REPLY] = sizeof (struct ofp_flow_stat_reply),
};
struct ofp_header *oh;
return;
}
- if (oh->type == OFPT_DATA_HELLO) {
- struct ofp_data_hello *odh = msg->data;
- sw->datapath_id = odh->datapath_id;
+ if (oh->type == OFPT_FEATURES_REPLY) {
+ struct ofp_switch_features *osf = msg->data;
+ sw->datapath_id = osf->datapath_id;
} else if (sw->datapath_id == 0) {
- send_control_hello(sw);
- return;
- }
-
- if (oh->type == OFPT_PACKET_IN) {
- if (sw->n_txq >= MAX_TXQ) {
+ send_features_request(sw);
+ } else if (oh->type == OFPT_PACKET_IN) {
+ struct ofp_packet_in *opi = msg->data;
+ if (sw->txq.n >= MAX_TXQ) {
+ /* FIXME: ratelimit. */
VLOG_WARN("%s: tx queue overflow", sw->name);
} else if (noflow) {
- process_noflow(sw, msg->data);
+ process_noflow(sw, opi);
} else if (hub) {
- process_hub(sw, msg->data);
+ process_hub(sw, opi);
} else {
- process_switch(sw, msg->data);
+ process_switch(sw, opi);
}
- return;
+ } else {
+ ofp_print(stdout, msg->data, msg->size, 2);
}
-
- ofp_print(stdout, msg->data, msg->size, 2);
}
static void
flow_extract(&pkt, ntohs(opi->in_port), &flow);
/* Learn the source. */
- if (!mac_is_multicast(flow.dl_src)) {
+ if (!eth_addr_is_multicast(flow.dl_src)) {
struct mac_source *src;
struct list *bucket;
bool found;
found = false;
LIST_FOR_EACH (src, struct mac_source, hash_list, bucket) {
if (src->datapath_id == sw->datapath_id
- && mac_equals(src->mac, flow.dl_src)) {
+ && eth_addr_equals(src->mac, flow.dl_src)) {
found = true;
break;
}
if (ntohs(flow.in_port) != src->port) {
src->port = ntohs(flow.in_port);
- VLOG_DBG("learned that "MAC_FMT" is on datapath %"PRIx64" port %d",
- MAC_ARGS(src->mac), ntohll(src->datapath_id),
+ VLOG_DBG("learned that "ETH_ADDR_FMT" is on datapath %"
+ PRIx64" port %d",
+ ETH_ADDR_ARGS(src->mac), ntohll(src->datapath_id),
src->port);
}
} else {
- VLOG_DBG("multicast packet source "MAC_FMT, MAC_ARGS(flow.dl_src));
+ VLOG_DBG("multicast packet source "ETH_ADDR_FMT,
+ ETH_ADDR_ARGS(flow.dl_src));
}
/* Figure out the destination. */
out_port = OFPP_FLOOD;
- if (!mac_is_multicast(flow.dl_dst)) {
+ if (!eth_addr_is_multicast(flow.dl_dst)) {
struct mac_source *dst;
struct list *bucket;
bucket = mac_table_bucket(sw->datapath_id, flow.dl_dst);
LIST_FOR_EACH (dst, struct mac_source, hash_list, bucket) {
if (dst->datapath_id == sw->datapath_id
- && mac_equals(dst->mac, flow.dl_dst)) {
+ && eth_addr_equals(dst->mac, flow.dl_dst)) {
out_port = dst->port;
break;
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff