#include "flow.h"
#include "mac-learning.h"
#include "ofpbuf.h"
+#include "ofp-parse.h"
#include "ofp-print.h"
+#include "ofp-util.h"
#include "openflow/openflow.h"
#include "poll-loop.h"
#include "queue.h"
#include "rconn.h"
-#include "stp.h"
#include "timeval.h"
#include "vconn.h"
-#include "xtoxll.h"
-
-#define THIS_MODULE VLM_learning_switch
#include "vlog.h"
+#include "xtoxll.h"
-enum port_state {
- P_DISABLED = 1 << 0,
- P_LISTENING = 1 << 1,
- P_LEARNING = 1 << 2,
- P_FORWARDING = 1 << 3,
- P_BLOCKING = 1 << 4
-};
+VLOG_DEFINE_THIS_MODULE(learning_switch)
struct lswitch {
/* If nonnegative, the switch sets up flows that expire after the given
int max_idle;
unsigned long long int datapath_id;
- uint32_t capabilities;
time_t last_features_request;
struct mac_learning *ml; /* NULL to act as hub instead of switch. */
- bool exact_flows; /* Use exact-match flows? */
+ uint32_t wildcards; /* Wildcards to apply to flows. */
bool action_normal; /* Use OFPP_NORMAL? */
+ uint32_t queue; /* OpenFlow queue to use, or UINT32_MAX. */
/* Number of outgoing queued packets on the rconn. */
struct rconn_packet_counter *queued;
-
- /* Spanning tree protocol implementation.
- *
- * We implement STP states by, whenever a port's STP state changes,
- * querying all the flows on the switch and then deleting any of them that
- * are inappropriate for a port's STP state. */
- long long int next_query; /* Next time at which to query all flows. */
- long long int last_query; /* Last time we sent a query. */
- long long int last_reply; /* Last time we received a query reply. */
- unsigned int port_states[STP_MAX_PORTS];
- uint32_t query_xid; /* XID used for query. */
- int n_flows, n_no_recv, n_no_send;
};
/* The log messages here could actually be useful in debugging, so keep the
static void queue_tx(struct lswitch *, struct rconn *, struct ofpbuf *);
static void send_features_request(struct lswitch *, struct rconn *);
-static void schedule_query(struct lswitch *, long long int delay);
-static bool may_learn(const struct lswitch *, uint16_t port_no);
-static bool may_recv(const struct lswitch *, uint16_t port_no,
- bool any_actions);
-static bool may_send(const struct lswitch *, uint16_t port_no);
+static void send_default_flows(struct lswitch *sw, struct rconn *rconn,
+ FILE *default_flows);
typedef void packet_handler_func(struct lswitch *, struct rconn *, void *);
static packet_handler_func process_switch_features;
static packet_handler_func process_packet_in;
static packet_handler_func process_echo_request;
-static packet_handler_func process_port_status;
-static packet_handler_func process_phy_port;
-static packet_handler_func process_stats_reply;
/* Creates and returns a new learning switch.
*
* after the given number of seconds (or never expire, if 'max_idle' is
* OFP_FLOW_PERMANENT). Otherwise, the new switch will process every packet.
*
+ * The caller may provide the file stream 'default_flows' that defines
+ * default flows that should be pushed when a switch connects. Each
+ * line is a flow entry in the format described for "add-flows" command
+ * in the Flow Syntax section of the ovs-ofct(8) man page. The caller
+ * is responsible for closing the stream.
+ *
* 'rconn' is used to send out an OpenFlow features request. */
struct lswitch *
lswitch_create(struct rconn *rconn, bool learn_macs,
- bool exact_flows, int max_idle, bool action_normal)
+ bool exact_flows, int max_idle, bool action_normal,
+ FILE *default_flows)
{
struct lswitch *sw;
- size_t i;
sw = xzalloc(sizeof *sw);
sw->max_idle = max_idle;
sw->last_features_request = time_now() - 1;
sw->ml = learn_macs ? mac_learning_create() : NULL;
sw->action_normal = action_normal;
- sw->exact_flows = exact_flows;
- sw->queued = rconn_packet_counter_create();
- sw->next_query = LLONG_MIN;
- sw->last_query = LLONG_MIN;
- sw->last_reply = LLONG_MIN;
- for (i = 0; i < STP_MAX_PORTS; i++) {
- sw->port_states[i] = P_DISABLED;
+ if (exact_flows) {
+ /* Exact match. */
+ sw->wildcards = 0;
+ } else {
+ /* We cannot wildcard all fields.
+ * We need in_port to detect moves.
+ * We need both SA and DA to do learning. */
+ sw->wildcards = (OFPFW_DL_TYPE | OFPFW_NW_SRC_MASK | OFPFW_NW_DST_MASK
+ | OFPFW_NW_PROTO | OFPFW_TP_SRC | OFPFW_TP_DST);
}
+ sw->queue = UINT32_MAX;
+ sw->queued = rconn_packet_counter_create();
send_features_request(sw, rconn);
+ if (default_flows) {
+ send_default_flows(sw, rconn, default_flows);
+ }
return sw;
}
}
}
+/* Sets 'queue' as the OpenFlow queue used by packets and flows set up by 'sw'.
+ * Specify UINT32_MAX to avoid specifying a particular queue, which is also the
+ * default if this function is never called for 'sw'. */
+void
+lswitch_set_queue(struct lswitch *sw, uint32_t queue)
+{
+ sw->queue = queue;
+}
+
/* Takes care of necessary 'sw' activity, except for receiving packets (which
* the caller must do). */
void
-lswitch_run(struct lswitch *sw, struct rconn *rconn)
+lswitch_run(struct lswitch *sw)
{
- long long int now = time_msec();
-
if (sw->ml) {
mac_learning_run(sw->ml, NULL);
}
-
- /* If we're waiting for more replies, keeping waiting for up to 10 s. */
- if (sw->last_reply != LLONG_MIN) {
- if (now - sw->last_reply > 10000) {
- VLOG_ERR_RL(&rl, "%016llx: No more flow stat replies last 10 s",
- sw->datapath_id);
- sw->last_reply = LLONG_MIN;
- sw->last_query = LLONG_MIN;
- schedule_query(sw, 0);
- } else {
- return;
- }
- }
-
- /* If we're waiting for any reply at all, keep waiting for up to 10 s. */
- if (sw->last_query != LLONG_MIN) {
- if (now - sw->last_query > 10000) {
- VLOG_ERR_RL(&rl, "%016llx: No flow stat replies in last 10 s",
- sw->datapath_id);
- sw->last_query = LLONG_MIN;
- schedule_query(sw, 0);
- } else {
- return;
- }
- }
-
- /* If it's time to send another query, do so. */
- if (sw->next_query != LLONG_MIN && now >= sw->next_query) {
- sw->next_query = LLONG_MIN;
- if (!rconn_is_connected(rconn)) {
- schedule_query(sw, 1000);
- } else {
- struct ofp_stats_request *osr;
- struct ofp_flow_stats_request *ofsr;
- struct ofpbuf *b;
- int error;
-
- VLOG_DBG("%016llx: Sending flow stats request to implement STP",
- sw->datapath_id);
-
- sw->last_query = now;
- sw->query_xid = random_uint32();
- sw->n_flows = 0;
- sw->n_no_recv = 0;
- sw->n_no_send = 0;
- osr = make_openflow_xid(sizeof *osr + sizeof *ofsr,
- OFPT_STATS_REQUEST, sw->query_xid, &b);
- osr->type = htons(OFPST_FLOW);
- osr->flags = htons(0);
- ofsr = (struct ofp_flow_stats_request *) osr->body;
- ofsr->match.wildcards = htonl(OFPFW_ALL);
- ofsr->table_id = 0xff;
- ofsr->out_port = htons(OFPP_NONE);
-
- error = rconn_send(rconn, b, NULL);
- if (error) {
- VLOG_WARN_RL(&rl, "%016llx: sending flow stats request "
- "failed: %s", sw->datapath_id, strerror(error));
- ofpbuf_delete(b);
- schedule_query(sw, 1000);
- }
- }
- }
-}
-
-static void
-wait_timeout(long long int started)
-{
- poll_timer_wait_until(started + 10000);
}
void
if (sw->ml) {
mac_learning_wait(sw->ml);
}
-
- if (sw->last_reply != LLONG_MIN) {
- wait_timeout(sw->last_reply);
- } else if (sw->last_query != LLONG_MIN) {
- wait_timeout(sw->last_query);
- }
}
/* Processes 'msg', which should be an OpenFlow received on 'rconn', according
offsetof(struct ofp_packet_in, data),
process_packet_in
},
- {
- OFPT_PORT_STATUS,
- sizeof(struct ofp_port_status),
- process_port_status
- },
- {
- OFPT_STATS_REPLY,
- offsetof(struct ofp_stats_reply, body),
- process_stats_reply
- },
{
OFPT_FLOW_REMOVED,
sizeof(struct ofp_flow_removed),
}
}
+static void
+send_default_flows(struct lswitch *sw, struct rconn *rconn,
+ FILE *default_flows)
+{
+ char line[1024];
+
+ while (fgets(line, sizeof line, default_flows)) {
+ struct ofpbuf *b;
+ struct ofp_flow_mod *ofm;
+ uint16_t priority, idle_timeout, hard_timeout;
+ uint64_t cookie;
+ struct ofp_match match;
+
+ char *comment;
+
+ /* Delete comments. */
+ comment = strchr(line, '#');
+ if (comment) {
+ *comment = '\0';
+ }
+
+ /* Drop empty lines. */
+ if (line[strspn(line, " \t\n")] == '\0') {
+ continue;
+ }
+
+ /* Parse and send. str_to_flow() will expand and reallocate the data
+ * in 'buffer', so we can't keep pointers to across the str_to_flow()
+ * call. */
+ make_openflow(sizeof *ofm, OFPT_FLOW_MOD, &b);
+ parse_ofp_str(line, &match, b,
+ NULL, NULL, &priority, &idle_timeout, &hard_timeout,
+ &cookie);
+ ofm = b->data;
+ ofm->match = match;
+ ofm->command = htons(OFPFC_ADD);
+ ofm->cookie = htonll(cookie);
+ ofm->idle_timeout = htons(idle_timeout);
+ ofm->hard_timeout = htons(hard_timeout);
+ ofm->buffer_id = htonl(UINT32_MAX);
+ ofm->priority = htons(priority);
+
+ update_openflow_length(b);
+ queue_tx(sw, rconn, b);
+ }
+}
+
static void
queue_tx(struct lswitch *sw, struct rconn *rconn, struct ofpbuf *b)
{
}
static void
-schedule_query(struct lswitch *sw, long long int delay)
+process_switch_features(struct lswitch *sw, struct rconn *rconn OVS_UNUSED,
+ void *osf_)
{
- long long int now = time_msec();
- if (sw->next_query == LLONG_MIN || sw->next_query > now + delay) {
- sw->next_query = now + delay;
- }
+ struct ofp_switch_features *osf = osf_;
+
+ sw->datapath_id = ntohll(osf->datapath_id);
}
-static void
-process_switch_features(struct lswitch *sw, struct rconn *rconn, void *osf_)
+static uint16_t
+lswitch_choose_destination(struct lswitch *sw, const flow_t *flow)
{
- struct ofp_switch_features *osf = osf_;
- size_t n_ports = ((ntohs(osf->header.length)
- - offsetof(struct ofp_switch_features, ports))
- / sizeof *osf->ports);
- size_t i;
+ uint16_t out_port;
- sw->datapath_id = ntohll(osf->datapath_id);
- sw->capabilities = ntohl(osf->capabilities);
- for (i = 0; i < n_ports; i++) {
- process_phy_port(sw, rconn, &osf->ports[i]);
+ /* Learn the source MAC. */
+ if (sw->ml) {
+ if (mac_learning_learn(sw->ml, flow->dl_src, 0, flow->in_port,
+ GRAT_ARP_LOCK_NONE)) {
+ VLOG_DBG_RL(&rl, "%016llx: learned that "ETH_ADDR_FMT" is on "
+ "port %"PRIu16, sw->datapath_id,
+ ETH_ADDR_ARGS(flow->dl_src), flow->in_port);
+ }
+ }
+
+ /* Drop frames for reserved multicast addresses. */
+ if (eth_addr_is_reserved(flow->dl_dst)) {
+ return OFPP_NONE;
+ }
+
+ out_port = OFPP_FLOOD;
+ if (sw->ml) {
+ int learned_port = mac_learning_lookup(sw->ml, flow->dl_dst, 0, NULL);
+ if (learned_port >= 0) {
+ out_port = learned_port;
+ if (out_port == flow->in_port) {
+ /* Don't send a packet back out its input port. */
+ return OFPP_NONE;
+ }
+ }
}
- if (sw->capabilities & OFPC_STP) {
- schedule_query(sw, 1000);
+
+ /* Check if we need to use "NORMAL" action. */
+ if (sw->action_normal && out_port != OFPP_FLOOD) {
+ return OFPP_NORMAL;
}
+
+ return out_port;
}
static void
{
struct ofp_packet_in *opi = opi_;
uint16_t in_port = ntohs(opi->in_port);
- uint16_t out_port = OFPP_FLOOD;
+ uint16_t out_port;
+
+ struct ofp_action_header actions[2];
+ size_t actions_len;
size_t pkt_ofs, pkt_len;
struct ofpbuf pkt;
flow_t flow;
+ /* Ignore packets sent via output to OFPP_CONTROLLER. This library never
+ * uses such an action. You never know what experiments might be going on,
+ * though, and it seems best not to interfere with them. */
+ if (opi->reason != OFPR_NO_MATCH) {
+ return;
+ }
+
/* Extract flow data from 'opi' into 'flow'. */
pkt_ofs = offsetof(struct ofp_packet_in, data);
pkt_len = ntohs(opi->header.length) - pkt_ofs;
pkt.size = pkt_len;
flow_extract(&pkt, 0, in_port, &flow);
- if (may_learn(sw, in_port) && sw->ml) {
- if (mac_learning_learn(sw->ml, flow.dl_src, 0, in_port)) {
- VLOG_DBG_RL(&rl, "%016llx: learned that "ETH_ADDR_FMT" is on "
- "port %"PRIu16, sw->datapath_id,
- ETH_ADDR_ARGS(flow.dl_src), in_port);
- }
- }
+ /* Choose output port. */
+ out_port = lswitch_choose_destination(sw, &flow);
- if (eth_addr_is_reserved(flow.dl_src)) {
- goto drop_it;
- }
+ /* Make actions. */
+ if (out_port == OFPP_NONE) {
+ actions_len = 0;
+ } else if (sw->queue == UINT32_MAX || out_port >= OFPP_MAX) {
+ struct ofp_action_output oao;
- if (!may_recv(sw, in_port, false)) {
- /* STP prevents receiving anything on this port. */
- goto drop_it;
- }
+ memset(&oao, 0, sizeof oao);
+ oao.type = htons(OFPAT_OUTPUT);
+ oao.len = htons(sizeof oao);
+ oao.port = htons(out_port);
- if (sw->ml) {
- int learned_port = mac_learning_lookup(sw->ml, flow.dl_dst, 0);
- if (learned_port >= 0 && may_send(sw, learned_port)) {
- out_port = learned_port;
- }
+ memcpy(actions, &oao, sizeof oao);
+ actions_len = sizeof oao;
+ } else {
+ struct ofp_action_enqueue oae;
+
+ memset(&oae, 0, sizeof oae);
+ oae.type = htons(OFPAT_ENQUEUE);
+ oae.len = htons(sizeof oae);
+ oae.port = htons(out_port);
+ oae.queue_id = htonl(sw->queue);
+
+ memcpy(actions, &oae, sizeof oae);
+ actions_len = sizeof oae;
}
+ assert(actions_len <= sizeof actions);
- if (in_port == out_port) {
- /* Don't send out packets on their input ports. */
- goto drop_it;
- } else if (sw->max_idle >= 0 && (!sw->ml || out_port != OFPP_FLOOD)) {
+ /* Send the packet, and possibly the whole flow, to the output port. */
+ if (sw->max_idle >= 0 && (!sw->ml || out_port != OFPP_FLOOD)) {
struct ofpbuf *buffer;
struct ofp_flow_mod *ofm;
- uint32_t wildcards;
-
- /* Check if we need to wildcard the flows. */
- if (!sw->exact_flows) {
- /* We can not wildcard all fields.
- * We need in_port to detect moves.
- * We need both SA and DA to do learning. */
- wildcards = (OFPFW_DL_TYPE | OFPFW_NW_SRC_MASK | OFPFW_NW_DST_MASK
- | OFPFW_NW_PROTO | OFPFW_TP_SRC | OFPFW_TP_DST);
- } else {
- /* Exact match */
- wildcards = 0;
- }
-
- /* Check if we need to use "NORMAL" action. */
- if (sw->action_normal && out_port != OFPP_FLOOD) {
- out_port = OFPP_NORMAL;
- }
/* The output port is known, or we always flood everything, so add a
* new flow. */
- buffer = make_add_simple_flow(&flow, ntohl(opi->buffer_id),
- out_port, sw->max_idle);
+ buffer = make_add_flow(&flow, ntohl(opi->buffer_id),
+ sw->max_idle, actions_len);
+ ofpbuf_put(buffer, actions, actions_len);
ofm = buffer->data;
- ofm->match.wildcards = htonl(wildcards);
+ ofm->match.wildcards = htonl(sw->wildcards);
queue_tx(sw, rconn, buffer);
/* If the switch didn't buffer the packet, we need to send a copy. */
- if (ntohl(opi->buffer_id) == UINT32_MAX) {
+ if (ntohl(opi->buffer_id) == UINT32_MAX && actions_len > 0) {
queue_tx(sw, rconn,
- make_unbuffered_packet_out(&pkt, in_port, out_port));
+ make_packet_out(&pkt, UINT32_MAX, in_port,
+ actions, actions_len / sizeof *actions));
}
} else {
- struct ofpbuf *b;
-
- /* Check if we need to use "NORMAL" action. */
- if (sw->action_normal && out_port != OFPP_FLOOD) {
- out_port = OFPP_NORMAL;
- }
-
/* We don't know that MAC, or we don't set up flows. Send along the
* packet without setting up a flow. */
- if (ntohl(opi->buffer_id) == UINT32_MAX) {
- b = make_unbuffered_packet_out(&pkt, in_port, out_port);
- } else {
- b = make_buffered_packet_out(ntohl(opi->buffer_id),
- in_port, out_port);
+ if (ntohl(opi->buffer_id) != UINT32_MAX || actions_len > 0) {
+ queue_tx(sw, rconn,
+ make_packet_out(&pkt, ntohl(opi->buffer_id), in_port,
+ actions, actions_len / sizeof *actions));
}
- queue_tx(sw, rconn, b);
- }
- return;
-
-drop_it:
- if (sw->max_idle >= 0) {
- /* Set up a flow to drop packets. */
- queue_tx(sw, rconn, make_add_flow(&flow, ntohl(opi->buffer_id),
- sw->max_idle, 0));
- } else {
- /* Just drop the packet, since we don't set up flows at all.
- * XXX we should send a packet_out with no actions if buffer_id !=
- * UINT32_MAX, to avoid clogging the kernel buffers. */
}
- return;
}
static void
struct ofp_header *rq = rq_;
queue_tx(sw, rconn, make_echo_reply(rq));
}
-
-static void
-process_port_status(struct lswitch *sw, struct rconn *rconn, void *ops_)
-{
- struct ofp_port_status *ops = ops_;
- process_phy_port(sw, rconn, &ops->desc);
-}
-
-static void
-process_phy_port(struct lswitch *sw, struct rconn *rconn OVS_UNUSED,
- void *opp_)
-{
- const struct ofp_phy_port *opp = opp_;
- uint16_t port_no = ntohs(opp->port_no);
- if (sw->capabilities & OFPC_STP && port_no < STP_MAX_PORTS) {
- uint32_t config = ntohl(opp->config);
- uint32_t state = ntohl(opp->state);
- unsigned int *port_state = &sw->port_states[port_no];
- unsigned int new_port_state;
-
- if (!(config & (OFPPC_NO_STP | OFPPC_PORT_DOWN))
- && !(state & OFPPS_LINK_DOWN))
- {
- switch (state & OFPPS_STP_MASK) {
- case OFPPS_STP_LISTEN:
- new_port_state = P_LISTENING;
- break;
- case OFPPS_STP_LEARN:
- new_port_state = P_LEARNING;
- break;
- case OFPPS_STP_FORWARD:
- new_port_state = P_FORWARDING;
- break;
- case OFPPS_STP_BLOCK:
- new_port_state = P_BLOCKING;
- break;
- default:
- new_port_state = P_DISABLED;
- break;
- }
- } else {
- new_port_state = P_FORWARDING;
- }
- if (*port_state != new_port_state) {
- *port_state = new_port_state;
- schedule_query(sw, 1000);
- }
- }
-}
-
-static unsigned int
-get_port_state(const struct lswitch *sw, uint16_t port_no)
-{
- return (port_no >= STP_MAX_PORTS || !(sw->capabilities & OFPC_STP)
- ? P_FORWARDING
- : sw->port_states[port_no]);
-}
-
-static bool
-may_learn(const struct lswitch *sw, uint16_t port_no)
-{
- return get_port_state(sw, port_no) & (P_LEARNING | P_FORWARDING);
-}
-
-static bool
-may_recv(const struct lswitch *sw, uint16_t port_no, bool any_actions)
-{
- unsigned int state = get_port_state(sw, port_no);
- return !(any_actions
- ? state & (P_DISABLED | P_LISTENING | P_BLOCKING)
- : state & (P_DISABLED | P_LISTENING | P_BLOCKING | P_LEARNING));
-}
-
-static bool
-may_send(const struct lswitch *sw, uint16_t port_no)
-{
- return get_port_state(sw, port_no) & P_FORWARDING;
-}
-
-static void
-process_flow_stats(struct lswitch *sw, struct rconn *rconn,
- const struct ofp_flow_stats *ofs)
-{
- const char *end = (char *) ofs + ntohs(ofs->length);
- bool delete = false;
-
- /* Decide to delete the flow if it matches on an STP-disabled physical
- * port. But don't delete it if the flow just drops all received packets,
- * because that's a perfectly reasonable thing to do for disabled physical
- * ports. */
- if (!(ofs->match.wildcards & htonl(OFPFW_IN_PORT))) {
- if (!may_recv(sw, ntohs(ofs->match.in_port),
- end > (char *) ofs->actions)) {
- delete = true;
- sw->n_no_recv++;
- }
- }
-
- /* Decide to delete the flow if it forwards to an STP-disabled physical
- * port. */
- if (!delete) {
- const struct ofp_action_header *a;
- size_t len;
-
- for (a = ofs->actions; (char *) a < end; a += len / 8) {
- len = ntohs(a->len);
- if (len > end - (char *) a) {
- VLOG_DBG_RL(&rl, "%016llx: action exceeds available space "
- "(%zu > %td)",
- sw->datapath_id, len, end - (char *) a);
- break;
- } else if (len % 8) {
- VLOG_DBG_RL(&rl, "%016llx: action length (%zu) not multiple "
- "of 8 bytes", sw->datapath_id, len);
- break;
- }
-
- if (a->type == htons(OFPAT_OUTPUT)) {
- struct ofp_action_output *oao = (struct ofp_action_output *) a;
- if (!may_send(sw, ntohs(oao->port))) {
- delete = true;
- sw->n_no_send++;
- break;
- }
- }
- }
- }
-
- /* Delete the flow. */
- if (delete) {
- struct ofp_flow_mod *ofm;
- struct ofpbuf *b;
-
- ofm = make_openflow(offsetof(struct ofp_flow_mod, actions),
- OFPT_FLOW_MOD, &b);
- ofm->match = ofs->match;
- ofm->command = OFPFC_DELETE_STRICT;
- rconn_send(rconn, b, NULL);
- }
-}
-
-static void
-process_stats_reply(struct lswitch *sw, struct rconn *rconn, void *osr_)
-{
- struct ofp_stats_reply *osr = osr_;
- struct flow_stats_iterator i;
- const struct ofp_flow_stats *fs;
-
- if (sw->last_query == LLONG_MIN
- || osr->type != htons(OFPST_FLOW)
- || osr->header.xid != sw->query_xid) {
- return;
- }
- for (fs = flow_stats_first(&i, osr); fs; fs = flow_stats_next(&i)) {
- sw->n_flows++;
- process_flow_stats(sw, rconn, fs);
- }
- if (!(osr->flags & htons(OFPSF_REPLY_MORE))) {
- VLOG_DBG("%016llx: Deleted %d of %d received flows to "
- "implement STP, %d because of no-recv, %d because of "
- "no-send", sw->datapath_id,
- sw->n_no_recv + sw->n_no_send, sw->n_flows,
- sw->n_no_recv, sw->n_no_send);
- sw->last_query = LLONG_MIN;
- sw->last_reply = LLONG_MIN;
- } else {
- sw->last_reply = time_msec();
- }
-}
-
git://git.onelab.eu / sliver-openvswitch.git / blobdiff