/*
- * Copyright (c) 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc.
* Copyright (c) 2009 InMon Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
#include <config.h>
#include "ofproto-dpif-sflow.h"
#include <inttypes.h>
+#include <sys/socket.h>
+#include <net/if.h>
#include <stdlib.h>
#include "collectors.h"
#include "compiler.h"
#include "ofproto.h"
#include "packets.h"
#include "poll-loop.h"
+#include "route-table.h"
#include "sflow_api.h"
#include "socket-util.h"
#include "timeval.h"
#include "vlog.h"
#include "lib/odp-util.h"
+#include "ofproto-provider.h"
VLOG_DEFINE_THIS_MODULE(sflow);
struct dpif_sflow_port {
struct hmap_node hmap_node; /* In struct dpif_sflow's "ports" hmap. */
- struct netdev *netdev; /* Underlying network device, for stats. */
SFLDataSource_instance dsi; /* sFlow library's notion of port number. */
- uint16_t odp_port; /* Datapath port number. */
+ struct ofport *ofport; /* To retrive port stats. */
};
struct dpif_sflow {
HMAP_FOR_EACH_IN_BUCKET (dsp, hmap_node,
hash_int(odp_port, 0), &ds->ports) {
- if (dsp->odp_port == odp_port) {
+ if (ofp_port_to_odp_port(dsp->ofport->ofp_port) == odp_port) {
return dsp;
}
}
{
struct dpif_sflow *ds = ds_;
SFLCounters_sample_element elem;
+ enum netdev_features current;
struct dpif_sflow_port *dsp;
SFLIf_counters *counters;
struct netdev_stats stats;
enum netdev_flags flags;
- uint32_t current;
dsp = dpif_sflow_find_port(ds, poller->bridgePort);
if (!dsp) {
counters = &elem.counterBlock.generic;
counters->ifIndex = SFL_DS_INDEX(poller->dsi);
counters->ifType = 6;
- if (!netdev_get_features(dsp->netdev, ¤t, NULL, NULL, NULL)) {
+ if (!netdev_get_features(dsp->ofport->netdev, ¤t, NULL, NULL, NULL)) {
/* The values of ifDirection come from MAU MIB (RFC 2668): 0 = unknown,
1 = full-duplex, 2 = half-duplex, 3 = in, 4=out */
counters->ifSpeed = netdev_features_to_bps(current);
counters->ifSpeed = 100000000;
counters->ifDirection = 0;
}
- if (!netdev_get_flags(dsp->netdev, &flags) && flags & NETDEV_UP) {
+ if (!netdev_get_flags(dsp->ofport->netdev, &flags) && flags & NETDEV_UP) {
counters->ifStatus = 1; /* ifAdminStatus up. */
- if (netdev_get_carrier(dsp->netdev)) {
+ if (netdev_get_carrier(dsp->ofport->netdev)) {
counters->ifStatus |= 2; /* ifOperStatus us. */
}
} else {
2. Does the multicast counter include broadcasts?
3. Does the rx_packets counter include multicasts/broadcasts?
*/
- netdev_get_stats(dsp->netdev, &stats);
+ ofproto_port_get_stats(dsp->ofport, &stats);
counters->ifInOctets = stats.rx_bytes;
counters->ifInUcastPkts = stats.rx_packets;
counters->ifInMulticastPkts = stats.multicast;
* The sFlow agent address should be a local IP address that is persistent and
* reachable over the network, if possible. The IP address associated with
* 'agent_device' is used if it has one, and otherwise 'control_ip', the IP
- * address used to talk to the controller. */
+ * address used to talk to the controller. If the agent device is not
+ * specified then it is figured out by taking a look at the routing table based
+ * on 'targets'. */
static bool
-sflow_choose_agent_address(const char *agent_device, const char *control_ip,
+sflow_choose_agent_address(const char *agent_device,
+ const struct sset *targets,
+ const char *control_ip,
SFLAddress *agent_addr)
{
+ const char *target;
struct in_addr in4;
memset(agent_addr, 0, sizeof *agent_addr);
agent_addr->type = SFLADDRESSTYPE_IP_V4;
if (agent_device) {
- struct netdev *netdev;
-
- if (!netdev_open(agent_device, "system", &netdev)) {
- int error = netdev_get_in4(netdev, &in4, NULL);
- netdev_close(netdev);
- if (!error) {
- goto success;
- }
+ if (!netdev_get_in4_by_name(agent_device, &in4)) {
+ goto success;
+ }
+ }
+
+ SSET_FOR_EACH (target, targets) {
+ struct sockaddr_in sin;
+ char name[IFNAMSIZ];
+
+ if (inet_parse_active(target, SFL_DEFAULT_COLLECTOR_PORT, &sin)
+ && route_table_get_name(sin.sin_addr.s_addr, name)
+ && !netdev_get_in4_by_name(name, &in4)) {
+ goto success;
}
}
ds->next_tick = time_now() + 1;
hmap_init(&ds->ports);
ds->probability = 0;
+ route_table_register();
+
return ds;
}
if (ds) {
struct dpif_sflow_port *dsp, *next;
+ route_table_unregister();
dpif_sflow_clear(ds);
HMAP_FOR_EACH_SAFE (dsp, next, hmap_node, &ds->ports) {
dpif_sflow_del_port__(ds, dsp);
}
static void
-dpif_sflow_add_poller(struct dpif_sflow *ds,
- struct dpif_sflow_port *dsp, uint16_t odp_port)
+dpif_sflow_add_poller(struct dpif_sflow *ds, struct dpif_sflow_port *dsp)
{
SFLPoller *poller = sfl_agent_addPoller(ds->sflow_agent, &dsp->dsi, ds,
sflow_agent_get_counters);
sfl_poller_set_sFlowCpInterval(poller, ds->options->polling_interval);
sfl_poller_set_sFlowCpReceiver(poller, RECEIVER_INDEX);
- sfl_poller_set_bridgePort(poller, odp_port);
+ sfl_poller_set_bridgePort(poller,
+ ofp_port_to_odp_port(dsp->ofport->ofp_port));
}
static void
}
void
-dpif_sflow_add_port(struct dpif_sflow *ds, uint16_t odp_port,
- const char *netdev_name)
+dpif_sflow_add_port(struct dpif_sflow *ds, struct ofport *ofport)
{
struct dpif_sflow_port *dsp;
- struct netdev *netdev;
+ uint16_t odp_port = ofp_port_to_odp_port(ofport->ofp_port);
uint32_t ifindex;
- int error;
dpif_sflow_del_port(ds, odp_port);
- /* Open network device. */
- error = netdev_open(netdev_name, "system", &netdev);
- if (error) {
- VLOG_WARN_RL(&rl, "failed to open network device \"%s\": %s",
- netdev_name, strerror(error));
- return;
- }
-
/* Add to table of ports. */
dsp = xmalloc(sizeof *dsp);
- dsp->netdev = netdev;
- ifindex = netdev_get_ifindex(netdev);
+ ifindex = netdev_get_ifindex(ofport->netdev);
if (ifindex <= 0) {
ifindex = (ds->sflow_agent->subId << 16) + odp_port;
}
+ dsp->ofport = ofport;
SFL_DS_SET(dsp->dsi, 0, ifindex, 0);
- dsp->odp_port = odp_port;
hmap_insert(&ds->ports, &dsp->hmap_node, hash_int(odp_port, 0));
/* Add poller and sampler. */
if (ds->sflow_agent) {
- dpif_sflow_add_poller(ds, dsp, odp_port);
+ dpif_sflow_add_poller(ds, dsp);
dpif_sflow_add_sampler(ds, dsp);
}
}
sfl_agent_removePoller(ds->sflow_agent, &dsp->dsi);
sfl_agent_removeSampler(ds->sflow_agent, &dsp->dsi);
}
- netdev_close(dsp->netdev);
hmap_remove(&ds->ports, &dsp->hmap_node);
free(dsp);
}
}
}
+ /* Choose agent IP address and agent device (if not yet setup) */
+ if (!sflow_choose_agent_address(options->agent_device,
+ &options->targets,
+ options->control_ip, &agentIP)) {
+ dpif_sflow_clear(ds);
+ return;
+ }
+
/* Avoid reconfiguring if options didn't change. */
if (!options_changed) {
return;
ofproto_sflow_options_destroy(ds->options);
ds->options = ofproto_sflow_options_clone(options);
- /* Choose agent IP address. */
- if (!sflow_choose_agent_address(options->agent_device,
- options->control_ip, &agentIP)) {
- dpif_sflow_clear(ds);
- return;
- }
-
/* Create agent. */
VLOG_INFO("creating sFlow agent %d", options->sub_id);
if (ds->sflow_agent) {
/* Add samplers and pollers for the currently known ports. */
HMAP_FOR_EACH (dsp, hmap_node, &ds->ports) {
- dpif_sflow_add_poller(ds, dsp, dsp->odp_port);
+ dpif_sflow_add_poller(ds, dsp);
dpif_sflow_add_sampler(ds, dsp);
}
}
void
dpif_sflow_received(struct dpif_sflow *ds, struct ofpbuf *packet,
const struct flow *flow,
- const struct user_action_cookie *cookie)
+ const union user_action_cookie *cookie)
{
SFL_FLOW_SAMPLE_TYPE fs;
SFLFlow_sample_element hdrElem;
SFLSampler *sampler;
struct dpif_sflow_port *in_dsp;
struct netdev_stats stats;
+ ovs_be16 vlan_tci;
int error;
/* Build a flow sample */
}
fs.input = SFL_DS_INDEX(in_dsp->dsi);
- error = netdev_get_stats(in_dsp->netdev, &stats);
+ error = ofproto_port_get_stats(in_dsp->ofport, &stats);
if (error) {
VLOG_WARN_RL(&rl, "netdev get-stats error %s", strerror(error));
return;
switchElem.flowType.sw.src_priority = vlan_tci_to_pcp(flow->vlan_tci);
/* Retrieve data from user_action_cookie. */
- switchElem.flowType.sw.dst_vlan = vlan_tci_to_vid(cookie->vlan_tci);
- switchElem.flowType.sw.dst_priority = vlan_tci_to_pcp(cookie->vlan_tci);
-
- /* Set output port, as defined by http://www.sflow.org/sflow_version_5.txt
- (search for "Input/output port information"). */
- if (!cookie->n_output) {
- /* This value indicates that the packet was dropped for an unknown
- * reason. */
- fs.output = 0x40000000 | 256;
- } else if (cookie->n_output > 1 || !cookie->data) {
- /* Setting the high bit means "multiple output ports". */
- fs.output = 0x80000000 | cookie->n_output;
- } else {
- fs.output = cookie->data;
- }
+ vlan_tci = cookie->sflow.vlan_tci;
+ switchElem.flowType.sw.dst_vlan = vlan_tci_to_vid(vlan_tci);
+ switchElem.flowType.sw.dst_priority = vlan_tci_to_pcp(vlan_tci);
+
+ fs.output = cookie->sflow.output;
/* Submit the flow sample to be encoded into the next datagram. */
SFLADD_ELEMENT(&fs, &hdrElem);
{
if (dpif_sflow_is_enabled(ds)) {
time_t now = time_now();
+ route_table_run();
if (now >= ds->next_tick) {
sfl_agent_tick(ds->sflow_agent, time_wall());
ds->next_tick = now + 1;
git://git.onelab.eu / sliver-openvswitch.git / blobdiff