#include <stdbool.h>
#include <stdlib.h>
#include "autopath.h"
+#include "bitmap.h"
+#include "bond.h"
#include "byte-order.h"
#include "cfm.h"
#include "classifier.h"
#include "fail-open.h"
#include "hash.h"
#include "hmap.h"
+#include "hmapx.h"
#include "in-band.h"
+#include "lacp.h"
#include "mac-learning.h"
#include "multipath.h"
#include "netdev.h"
#include "unaligned.h"
#include "unixctl.h"
#include "vconn.h"
+#include "vlan-bitmap.h"
#include "vlog.h"
VLOG_DEFINE_THIS_MODULE(ofproto);
struct rule;
+#define MAX_MIRRORS 32
+typedef uint32_t mirror_mask_t;
+#define MIRROR_MASK_C(X) UINT32_C(X)
+BUILD_ASSERT_DECL(sizeof(mirror_mask_t) * CHAR_BIT >= MAX_MIRRORS);
+struct ofmirror {
+ struct ofproto *ofproto; /* Owning ofproto. */
+ size_t idx; /* In ofproto's "mirrors" array. */
+ void *aux; /* Key supplied by ofproto's client. */
+ char *name; /* Identifier for log messages. */
+
+ /* Selection criteria. */
+ struct hmapx srcs; /* Contains "struct ofbundle *"s. */
+ struct hmapx dsts; /* Contains "struct ofbundle *"s. */
+ unsigned long *vlans; /* Bitmap of chosen VLANs, NULL selects all. */
+
+ /* Output (mutually exclusive). */
+ struct ofbundle *out; /* Output port or NULL. */
+ int out_vlan; /* Output VLAN or -1. */
+};
+
+static void ofproto_mirror_destroy(struct ofmirror *);
+
+/* A group of one or more OpenFlow ports. */
+#define OFBUNDLE_FLOOD ((struct ofbundle *) 1)
+struct ofbundle {
+ struct ofproto *ofproto; /* Owning ofproto. */
+ struct hmap_node hmap_node; /* In struct ofproto's "bundles" hmap. */
+ void *aux; /* Key supplied by ofproto's client. */
+ char *name; /* Identifier for log messages. */
+
+ /* Configuration. */
+ struct list ports; /* Contains "struct ofport"s. */
+ int vlan; /* -1=trunk port, else a 12-bit VLAN ID. */
+ unsigned long *trunks; /* Bitmap of trunked VLANs, if 'vlan' == -1.
+ * NULL if all VLANs are trunked. */
+ struct lacp *lacp; /* LACP if LACP is enabled, otherwise NULL. */
+ struct bond *bond; /* Bonding setup if more than one port,
+ * otherwise NULL. */
+
+ /* Status. */
+ bool floodable; /* True if no port has OFPPC_NO_FLOOD set. */
+
+ /* Port mirroring info. */
+ mirror_mask_t src_mirrors; /* Mirrors triggered when packet received. */
+ mirror_mask_t dst_mirrors; /* Mirrors triggered when packet sent. */
+ mirror_mask_t mirror_out; /* Mirrors that output to this bundle. */
+};
+
+/* An OpenFlow port. */
struct ofport {
struct ofproto *ofproto; /* Owning ofproto. */
struct hmap_node hmap_node; /* In struct ofproto's "ports" hmap. */
struct netdev *netdev;
struct ofp_phy_port opp;
uint16_t odp_port;
+
+ /* Bridging. */
+ struct ofbundle *bundle; /* Bundle that contains this port, if any. */
+ struct list bundle_node; /* In struct ofbundle's "ports" list. */
struct cfm *cfm; /* Connectivity Fault Management, if any. */
+ tag_type tag; /* Tag associated with this port. */
};
static void ofport_free(struct ofport *);
* be reassessed for every packet. */
size_t actions_len; /* Number of bytes in actions[]. */
struct nlattr *actions; /* Datapath actions. */
- tag_type tags; /* Tags (set only by hooks). */
+ tag_type tags; /* Tags. */
struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */
};
struct shash port_by_name;
uint32_t max_ports;
- /* Configuration. */
+ /* Bridging. */
struct netflow *netflow;
struct ofproto_sflow *sflow;
+ struct hmap bundles; /* Contains "struct ofbundle"s. */
+ struct mac_learning *ml;
+ struct ofmirror *mirrors[MAX_MIRRORS];
+ bool has_bonded_bundles;
/* Flow table. */
struct classifier cls;
/* OpenFlow connections. */
struct connmgr *connmgr;
-
- /* Hooks for ovs-vswitchd. */
- const struct ofhooks *ofhooks;
- void *aux;
-
- /* Used by default ofhooks. */
- struct mac_learning *ml;
};
/* Map from dpif name to struct ofproto, for use by unixctl commands. */
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
-static const struct ofhooks default_ofhooks;
-
static uint64_t pick_datapath_id(const struct ofproto *);
static uint64_t pick_fallback_dpid(void);
static int init_ports(struct ofproto *);
static void reinit_ports(struct ofproto *);
+static void update_learning_table(struct ofproto *,
+ const struct flow *, int vlan,
+ struct ofbundle *);
+static bool is_admissible(struct ofproto *, const struct flow *,
+ bool have_packet, tag_type *, int *vlanp,
+ struct ofbundle **in_bundlep);
+
static void ofproto_unixctl_init(void);
int
ofproto_create(const char *datapath, const char *datapath_type,
- const struct ofhooks *ofhooks, void *aux,
struct ofproto **ofprotop)
{
char local_name[IF_NAMESIZE];
struct ofproto *p;
struct dpif *dpif;
int error;
+ int i;
*ofprotop = NULL;
shash_init(&p->port_by_name);
p->max_ports = dpif_get_max_ports(dpif);
- /* Initialize submodules. */
+ /* Initialize bridging. */
p->netflow = NULL;
p->sflow = NULL;
+ hmap_init(&p->bundles);
+ p->ml = mac_learning_create();
+ for (i = 0; i < MAX_MIRRORS; i++) {
+ p->mirrors[i] = NULL;
+ }
+ p->has_bonded_bundles = false;
/* Initialize flow table. */
classifier_init(&p->cls);
p->need_revalidate = false;
tag_set_init(&p->revalidate_set);
- /* Initialize hooks. */
- if (ofhooks) {
- p->ofhooks = ofhooks;
- p->aux = aux;
- p->ml = NULL;
- } else {
- p->ofhooks = &default_ofhooks;
- p->aux = p;
- p->ml = mac_learning_create();
- }
-
/* Pick final datapath ID. */
p->datapath_id = pick_datapath_id(p);
VLOG_INFO("using datapath ID %016"PRIx64, p->datapath_id);
struct ofport *ofport = get_port(ofproto, port_no);
return ofport ? ofport->cfm : NULL;
}
+
+/* Checks the status of LACP negotiation for 'ofp_port' within ofproto.
+ * Returns 1 if LACP partner information for 'ofp_port' is up-to-date,
+ * 0 if LACP partner information is not current (generally indicating a
+ * connectivity problem), or -1 if LACP is not enabled on 'ofp_port'. */
+int
+ofproto_port_is_lacp_current(struct ofproto *ofproto, uint16_t ofp_port)
+{
+ struct ofport *ofport = get_port(ofproto, ofp_port_to_odp_port(ofp_port));
+ return (ofport && ofport->bundle && ofport->bundle->lacp
+ ? lacp_slave_is_current(ofport->bundle->lacp, ofport)
+ : -1);
+}
\f
-uint64_t
-ofproto_get_datapath_id(const struct ofproto *ofproto)
+/* Bundles. */
+
+/* Expires all MAC learning entries associated with 'port' and forces ofproto
+ * to revalidate every flow. */
+static void
+ofproto_bundle_flush_macs(struct ofbundle *bundle)
+{
+ struct ofproto *ofproto = bundle->ofproto;
+ struct mac_learning *ml = ofproto->ml;
+ struct mac_entry *mac, *next_mac;
+
+ ofproto->need_revalidate = true;
+ LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) {
+ if (mac->port.p == bundle) {
+ mac_learning_expire(ml, mac);
+ }
+ }
+}
+
+static struct ofbundle *
+ofproto_bundle_lookup(const struct ofproto *ofproto, void *aux)
+{
+ struct ofbundle *bundle;
+
+ HMAP_FOR_EACH_IN_BUCKET (bundle, hmap_node, hash_pointer(aux, 0),
+ &ofproto->bundles) {
+ if (bundle->aux == aux) {
+ return bundle;
+ }
+ }
+ return NULL;
+}
+
+/* Looks up each of the 'n_auxes' pointers in 'auxes' as bundles and adds the
+ * ones that are found to 'bundles'. */
+static void
+ofproto_bundle_lookup_multiple(struct ofproto *ofproto,
+ void **auxes, size_t n_auxes,
+ struct hmapx *bundles)
+{
+ size_t i;
+
+ hmapx_init(bundles);
+ for (i = 0; i < n_auxes; i++) {
+ struct ofbundle *bundle = ofproto_bundle_lookup(ofproto, auxes[i]);
+ if (bundle) {
+ hmapx_add(bundles, bundle);
+ }
+ }
+}
+
+static void
+ofproto_bundle_del_port(struct ofport *port)
+{
+ struct ofbundle *bundle = port->bundle;
+
+ list_remove(&port->bundle_node);
+ port->bundle = NULL;
+
+ if (bundle->lacp) {
+ lacp_slave_unregister(bundle->lacp, port);
+ }
+ if (bundle->bond) {
+ bond_slave_unregister(bundle->bond, port);
+ }
+
+ bundle->floodable = true;
+ LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
+ if (port->opp.config & htonl(OFPPC_NO_FLOOD)) {
+ bundle->floodable = false;
+ }
+ }
+}
+
+static bool
+ofproto_bundle_add_port(struct ofbundle *bundle, uint32_t ofp_port,
+ struct lacp_slave_settings *lacp)
+{
+ struct ofport *port;
+
+ port = get_port(bundle->ofproto, ofp_port_to_odp_port(ofp_port));
+ if (!port) {
+ return false;
+ }
+
+ if (port->bundle != bundle) {
+ if (port->bundle) {
+ ofproto_bundle_del_port(port);
+ }
+
+ port->bundle = bundle;
+ list_push_back(&bundle->ports, &port->bundle_node);
+ if (port->opp.config & htonl(OFPPC_NO_FLOOD)) {
+ bundle->floodable = false;
+ }
+ }
+
+ if (lacp) {
+ lacp_slave_register(bundle->lacp, port, lacp);
+ }
+
+ return true;
+}
+
+void
+ofproto_bundle_register(struct ofproto *ofproto, void *aux,
+ const struct ofproto_bundle_settings *s)
+{
+ bool need_flush = false;
+ const unsigned long *trunks;
+ struct ofbundle *bundle;
+ struct ofport *port;
+ size_t i;
+ bool ok;
+
+ assert(s->n_slaves == 1 || s->bond != NULL);
+ assert((s->lacp != NULL) == (s->lacp_slaves != NULL));
+
+ bundle = ofproto_bundle_lookup(ofproto, aux);
+ if (!bundle) {
+ bundle = xmalloc(sizeof *bundle);
+
+ bundle->ofproto = ofproto;
+ hmap_insert(&ofproto->bundles, &bundle->hmap_node,
+ hash_pointer(aux, 0));
+ bundle->aux = aux;
+ bundle->name = NULL;
+
+ list_init(&bundle->ports);
+ bundle->vlan = -1;
+ bundle->trunks = NULL;
+ bundle->bond = NULL;
+ bundle->lacp = NULL;
+
+ bundle->floodable = true;
+
+ bundle->src_mirrors = 0;
+ bundle->dst_mirrors = 0;
+ bundle->mirror_out = 0;
+ }
+
+ if (!bundle->name || strcmp(s->name, bundle->name)) {
+ free(bundle->name);
+ bundle->name = xstrdup(s->name);
+ }
+
+ /* LACP. */
+ if (s->lacp) {
+ if (!bundle->lacp) {
+ bundle->lacp = lacp_create();
+ }
+ lacp_configure(bundle->lacp, s->lacp);
+ } else {
+ lacp_destroy(bundle->lacp);
+ bundle->lacp = NULL;
+ }
+
+ /* Update set of ports. */
+ ok = true;
+ for (i = 0; i < s->n_slaves; i++) {
+ if (!ofproto_bundle_add_port(bundle, s->slaves[i],
+ s->lacp ? &s->lacp_slaves[i] : NULL)) {
+ ok = false;
+ }
+ }
+ if (!ok || list_size(&bundle->ports) != s->n_slaves) {
+ struct ofport *next_port;
+
+ LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
+ for (i = 0; i < s->n_slaves; i++) {
+ if (s->slaves[i] == odp_port_to_ofp_port(port->odp_port)) {
+ goto found;
+ }
+ }
+
+ ofproto_bundle_del_port(port);
+ found: ;
+ }
+ }
+ assert(list_size(&bundle->ports) <= s->n_slaves);
+
+ if (list_is_empty(&bundle->ports)) {
+ ofproto_bundle_unregister(ofproto, aux);
+ return;
+ }
+
+ /* Set VLAN tag. */
+ if (s->vlan != bundle->vlan) {
+ bundle->vlan = s->vlan;
+ need_flush = true;
+ }
+
+ /* Get trunked VLANs. */
+ trunks = s->vlan == -1 ? NULL : s->trunks;
+ if (!vlan_bitmap_equal(trunks, bundle->trunks)) {
+ free(bundle->trunks);
+ bundle->trunks = vlan_bitmap_clone(trunks);
+ need_flush = true;
+ }
+
+ /* Bonding. */
+ if (!list_is_short(&bundle->ports)) {
+ bundle->ofproto->has_bonded_bundles = true;
+ if (bundle->bond) {
+ if (bond_reconfigure(bundle->bond, s->bond)) {
+ ofproto->need_revalidate = true;
+ }
+ } else {
+ bundle->bond = bond_create(s->bond);
+ }
+
+ LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
+ uint16_t stable_id = (bundle->lacp
+ ? lacp_slave_get_port_id(bundle->lacp, port)
+ : port->odp_port);
+ bond_slave_register(bundle->bond, port, stable_id, port->netdev);
+ }
+ } else {
+ bond_destroy(bundle->bond);
+ bundle->bond = NULL;
+ }
+
+ /* If we changed something that would affect MAC learning, un-learn
+ * everything on this port and force flow revalidation. */
+ if (need_flush) {
+ ofproto_bundle_flush_macs(bundle);
+ }
+}
+
+static void
+ofproto_bundle_destroy(struct ofbundle *bundle)
{
- return ofproto->datapath_id;
+ struct ofproto *ofproto;
+ struct ofport *port, *next_port;
+ int i;
+
+ if (!bundle) {
+ return;
+ }
+
+ ofproto = bundle->ofproto;
+ for (i = 0; i < MAX_MIRRORS; i++) {
+ struct ofmirror *m = ofproto->mirrors[i];
+ if (m) {
+ if (m->out == bundle) {
+ ofproto_mirror_destroy(m);
+ } else if (hmapx_find_and_delete(&m->srcs, bundle)
+ || hmapx_find_and_delete(&m->dsts, bundle)) {
+ ofproto->need_revalidate = true;
+ }
+ }
+ }
+
+ LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
+ ofproto_bundle_del_port(port);
+ }
+
+ ofproto_bundle_flush_macs(bundle);
+ hmap_remove(&ofproto->bundles, &bundle->hmap_node);
+ free(bundle->name);
+ free(bundle->trunks);
+ bond_destroy(bundle->bond);
+ lacp_destroy(bundle->lacp);
+ free(bundle);
}
-enum ofproto_fail_mode
-ofproto_get_fail_mode(const struct ofproto *p)
+void
+ofproto_bundle_unregister(struct ofproto *ofproto, void *aux)
{
- return connmgr_get_fail_mode(p->connmgr);
+ ofproto_bundle_destroy(ofproto_bundle_lookup(ofproto, aux));
+}
+
+static void
+send_pdu_cb(void *port_, const struct lacp_pdu *pdu)
+{
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
+ struct ofport *port = port_;
+ uint8_t ea[ETH_ADDR_LEN];
+ int error;
+
+ error = netdev_get_etheraddr(port->netdev, ea);
+ if (!error) {
+ struct lacp_pdu *packet_pdu;
+ struct ofpbuf packet;
+
+ ofpbuf_init(&packet, 0);
+ packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP,
+ sizeof *packet_pdu);
+ *packet_pdu = *pdu;
+ error = netdev_send(port->netdev, &packet);
+ if (error) {
+ VLOG_WARN_RL(&rl, "port %s: sending LACP PDU on iface %s failed "
+ "(%s)", port->bundle->name,
+ netdev_get_name(port->netdev), strerror(error));
+ }
+ ofpbuf_uninit(&packet);
+ } else {
+ VLOG_ERR_RL(&rl, "port %s: cannot obtain Ethernet address of iface "
+ "%s (%s)", port->bundle->name,
+ netdev_get_name(port->netdev), strerror(error));
+ }
+}
+
+static void
+ofproto_bundle_send_learning_packets(struct ofbundle *bundle)
+{
+ struct ofproto *ofproto = bundle->ofproto;
+ int error, n_packets, n_errors;
+ struct mac_entry *e;
+
+ error = n_packets = n_errors = 0;
+ LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
+ if (e->port.p != bundle) {
+ int ret = bond_send_learning_packet(bundle->bond, e->mac, e->vlan);
+ if (ret) {
+ error = ret;
+ n_errors++;
+ }
+ n_packets++;
+ }
+ }
+
+ if (n_errors) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+ VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning "
+ "packets, last error was: %s",
+ bundle->name, n_errors, n_packets, strerror(error));
+ } else {
+ VLOG_DBG("bond %s: sent %d gratuitous learning packets",
+ bundle->name, n_packets);
+ }
+}
+
+static void
+ofproto_bundle_run(struct ofbundle *bundle)
+{
+ if (bundle->lacp) {
+ lacp_run(bundle->lacp, send_pdu_cb);
+ }
+ if (bundle->bond) {
+ struct ofport *port;
+
+ LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
+ bool may_enable = lacp_slave_may_enable(bundle->lacp, port);
+ bond_slave_set_lacp_may_enable(bundle->bond, port, may_enable);
+ }
+
+ bond_run(bundle->bond, &bundle->ofproto->revalidate_set,
+ lacp_negotiated(bundle->lacp));
+ if (bond_should_send_learning_packets(bundle->bond)) {
+ ofproto_bundle_send_learning_packets(bundle);
+ }
+ }
+}
+
+static void
+ofproto_bundle_wait(struct ofbundle *bundle)
+{
+ if (bundle->lacp) {
+ lacp_wait(bundle->lacp);
+ }
+ if (bundle->bond) {
+ bond_wait(bundle->bond);
+ }
+}
+\f
+static int
+ofproto_mirror_scan(struct ofproto *ofproto)
+{
+ int idx;
+
+ for (idx = 0; idx < MAX_MIRRORS; idx++) {
+ if (!ofproto->mirrors[idx]) {
+ return idx;
+ }
+ }
+ return -1;
+}
+
+static struct ofmirror *
+ofproto_mirror_lookup(struct ofproto *ofproto, void *aux)
+{
+ int i;
+
+ for (i = 0; i < MAX_MIRRORS; i++) {
+ struct ofmirror *mirror = ofproto->mirrors[i];
+ if (mirror && mirror->aux == aux) {
+ return mirror;
+ }
+ }
+
+ return NULL;
+}
+
+void
+ofproto_mirror_register(struct ofproto *ofproto, void *aux,
+ const struct ofproto_mirror_settings *s)
+{
+ mirror_mask_t mirror_bit;
+ struct ofbundle *bundle;
+ struct ofmirror *mirror;
+ struct ofbundle *out;
+ struct hmapx srcs; /* Contains "struct ofbundle *"s. */
+ struct hmapx dsts; /* Contains "struct ofbundle *"s. */
+ int out_vlan;
+
+ mirror = ofproto_mirror_lookup(ofproto, aux);
+ if (!mirror) {
+ int idx;
+
+ idx = ofproto_mirror_scan(ofproto);
+ if (idx < 0) {
+ VLOG_WARN("bridge %s: maximum of %d port mirrors reached, "
+ "cannot create %s",
+ ofproto->name, MAX_MIRRORS, s->name);
+ return;
+ }
+
+ mirror = ofproto->mirrors[idx] = xzalloc(sizeof *mirror);
+ mirror->ofproto = ofproto;
+ mirror->idx = idx;
+ mirror->out_vlan = -1;
+ mirror->name = NULL;
+ }
+
+ if (!mirror->name || strcmp(s->name, mirror->name)) {
+ free(mirror->name);
+ mirror->name = xstrdup(s->name);
+ }
+
+ /* Get the new configuration. */
+ if (s->out_bundle) {
+ out = ofproto_bundle_lookup(ofproto, s->out_bundle);
+ if (!out) {
+ ofproto_mirror_destroy(mirror);
+ return;
+ }
+ out_vlan = -1;
+ } else {
+ out = NULL;
+ out_vlan = s->out_vlan;
+ }
+ ofproto_bundle_lookup_multiple(ofproto, s->srcs, s->n_srcs, &srcs);
+ ofproto_bundle_lookup_multiple(ofproto, s->dsts, s->n_dsts, &dsts);
+
+ /* If the configuration has not changed, do nothing. */
+ if (hmapx_equals(&srcs, &mirror->srcs)
+ && hmapx_equals(&dsts, &mirror->dsts)
+ && vlan_bitmap_equal(mirror->vlans, s->src_vlans)
+ && mirror->out == out
+ && mirror->out_vlan == out_vlan)
+ {
+ hmapx_destroy(&srcs);
+ hmapx_destroy(&dsts);
+ return;
+ }
+
+ hmapx_swap(&srcs, &mirror->srcs);
+ hmapx_destroy(&srcs);
+
+ hmapx_swap(&dsts, &mirror->dsts);
+ hmapx_destroy(&dsts);
+
+ free(mirror->vlans);
+ mirror->vlans = vlan_bitmap_clone(s->src_vlans);
+
+ mirror->out = out;
+ mirror->out_vlan = out_vlan;
+
+ /* Update bundles. */
+ mirror_bit = MIRROR_MASK_C(1) << mirror->idx;
+ HMAP_FOR_EACH (bundle, hmap_node, &mirror->ofproto->bundles) {
+ if (hmapx_contains(&mirror->srcs, bundle)) {
+ bundle->src_mirrors |= mirror_bit;
+ } else {
+ bundle->src_mirrors &= ~mirror_bit;
+ }
+
+ if (hmapx_contains(&mirror->dsts, bundle)) {
+ bundle->dst_mirrors |= mirror_bit;
+ } else {
+ bundle->dst_mirrors &= ~mirror_bit;
+ }
+
+ if (mirror->out == bundle) {
+ bundle->mirror_out |= mirror_bit;
+ } else {
+ bundle->mirror_out &= ~mirror_bit;
+ }
+ }
+
+ ofproto->need_revalidate = true;
+ mac_learning_flush(ofproto->ml);
+}
+
+static void
+ofproto_mirror_destroy(struct ofmirror *mirror)
+{
+ mirror_mask_t mirror_bit;
+ struct ofbundle *bundle;
+ struct ofproto *ofproto;
+
+ if (!mirror) {
+ return;
+ }
+
+ ofproto = mirror->ofproto;
+ ofproto->need_revalidate = true;
+ mac_learning_flush(ofproto->ml);
+
+ mirror_bit = MIRROR_MASK_C(1) << mirror->idx;
+ HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
+ bundle->src_mirrors &= ~mirror_bit;
+ bundle->dst_mirrors &= ~mirror_bit;
+ bundle->mirror_out &= ~mirror_bit;
+ }
+
+ hmapx_destroy(&mirror->srcs);
+ hmapx_destroy(&mirror->dsts);
+ free(mirror->vlans);
+
+ ofproto->mirrors[mirror->idx] = NULL;
+ free(mirror->name);
+ free(mirror);
+}
+
+void
+ofproto_mirror_unregister(struct ofproto *ofproto, void *aux)
+{
+ ofproto_mirror_destroy(ofproto_mirror_lookup(ofproto, aux));
+}
+
+void
+ofproto_set_flood_vlans(struct ofproto *ofproto, unsigned long *flood_vlans)
+{
+ if (mac_learning_set_flood_vlans(ofproto->ml, flood_vlans)) {
+ ofproto->need_revalidate = true;
+ mac_learning_flush(ofproto->ml);
+ }
}
+bool
+ofproto_is_mirror_output_bundle(struct ofproto *ofproto, void *aux)
+{
+ struct ofbundle *bundle = ofproto_bundle_lookup(ofproto, aux);
+ return bundle && bundle->mirror_out != 0;
+}
+\f
bool
ofproto_has_snoops(const struct ofproto *ofproto)
{
connmgr_get_snoops(ofproto->connmgr, snoops);
}
-static void
-ofproto_destroy__(struct ofproto *p, bool delete)
+void
+ofproto_destroy(struct ofproto *p)
{
struct ofport *ofport, *next_ofport;
+ int i;
if (!p) {
return;
hmap_remove(&all_ofprotos, &p->hmap_node);
+ for (i = 0; i < MAX_MIRRORS; i++) {
+ ofproto_mirror_destroy(p->mirrors[i]);
+ }
ofproto_flush_flows__(p);
connmgr_destroy(p->connmgr);
classifier_destroy(&p->cls);
hmap_destroy(&p->facets);
- if (delete) {
- int error = dpif_delete(p->dpif);
- if (error && error != ENOENT) {
- VLOG_ERR("bridge %s: failed to destroy (%s)",
- p->name, strerror(error));
- }
- }
dpif_close(p->dpif);
netdev_monitor_destroy(p->netdev_monitor);
netflow_destroy(p->netflow);
ofproto_sflow_destroy(p->sflow);
- mac_learning_destroy(p->ml);
-
free(p->mfr_desc);
free(p->hw_desc);
free(p->sw_desc);
free(p);
}
-void
-ofproto_destroy(struct ofproto *p)
-{
- ofproto_destroy__(p, false);
-}
-
-void
-ofproto_destroy_and_delete(struct ofproto *p)
-{
- ofproto_destroy__(p, true);
-}
-
-int
-ofproto_run(struct ofproto *p)
-{
- int error = ofproto_run1(p);
- if (!error) {
- error = ofproto_run2(p, false);
- }
- return error;
-}
-
static void
process_port_change(struct ofproto *ofproto, int error, char *devname)
{
}
int
-ofproto_run1(struct ofproto *p)
+ofproto_run(struct ofproto *p)
{
+ struct ofbundle *bundle;
struct ofport *ofport;
char *devname;
int error;
ofport_run(ofport);
}
+ HMAP_FOR_EACH (bundle, hmap_node, &p->bundles) {
+ ofproto_bundle_run(bundle);
+ }
+
connmgr_run(p->connmgr, handle_openflow);
if (timer_expired(&p->next_expiration)) {
ofproto_sflow_run(p->sflow);
}
- return 0;
-}
-
-int
-ofproto_run2(struct ofproto *p, bool revalidate_all)
-{
- /* Figure out what we need to revalidate now, if anything. */
- struct tag_set revalidate_set = p->revalidate_set;
- if (p->need_revalidate) {
- revalidate_all = true;
- }
-
- /* Clear the revalidation flags. */
- tag_set_init(&p->revalidate_set);
- p->need_revalidate = false;
-
/* Now revalidate if there's anything to do. */
- if (revalidate_all || !tag_set_is_empty(&revalidate_set)) {
+ if (p->need_revalidate || !tag_set_is_empty(&p->revalidate_set)) {
+ struct tag_set revalidate_set = p->revalidate_set;
+ bool revalidate_all = p->need_revalidate;
struct facet *facet, *next;
+ /* Clear the revalidation flags. */
+ tag_set_init(&p->revalidate_set);
+ p->need_revalidate = false;
+
HMAP_FOR_EACH_SAFE (facet, next, hmap_node, &p->facets) {
if (revalidate_all
|| tag_set_intersects(&revalidate_set, facet->tags)) {
void
ofproto_wait(struct ofproto *p)
{
+ struct ofbundle *bundle;
struct ofport *ofport;
HMAP_FOR_EACH (ofport, hmap_node, &p->ports) {
ofport_wait(ofport);
}
+ HMAP_FOR_EACH (bundle, hmap_node, &p->bundles) {
+ ofproto_bundle_wait(bundle);
+ }
dpif_recv_wait(p->dpif);
dpif_port_poll_wait(p->dpif);
netdev_monitor_poll_wait(p->netdev_monitor);
connmgr_wait(p->connmgr);
}
-void
-ofproto_revalidate(struct ofproto *ofproto, tag_type tag)
-{
- tag_set_add(&ofproto->revalidate_set, tag);
-}
-
-struct tag_set *
-ofproto_get_revalidate_set(struct ofproto *ofproto)
-{
- return &ofproto->revalidate_set;
-}
-
bool
ofproto_is_alive(const struct ofproto *p)
{
return error;
}
-/* Checks if 'ofproto' thinks 'odp_port' should be included in floods. Returns
- * true if 'odp_port' exists and should be included, false otherwise. */
-bool
-ofproto_port_is_floodable(struct ofproto *ofproto, uint16_t odp_port)
-{
- struct ofport *ofport = get_port(ofproto, odp_port);
- return ofport && !(ofport->opp.config & htonl(OFPPC_NO_FLOOD));
-}
-
/* Sends 'packet' out of port 'port_no' within 'p'. If 'vlan_tci' is zero the
* packet will not have any 802.1Q hader; if it is nonzero, then the packet
* will be sent with the VLAN TCI specified by 'vlan_tci & ~VLAN_CFI'.
ofport->netdev = netdev;
ofport->opp = *opp;
ofport->odp_port = ofp_port_to_odp_port(ntohs(opp->port_no));
+ ofport->bundle = NULL;
ofport->cfm = NULL;
+ ofport->tag = tag_create_random();
/* Add port to 'p'. */
netdev_monitor_add(p->netdev_monitor, ofport->netdev);
static void
ofport_remove(struct ofport *ofport)
{
- struct ofproto *p = ofport->ofproto;
-
- connmgr_send_port_status(p->connmgr, &ofport->opp, OFPPR_DELETE);
-
- netdev_monitor_remove(p->netdev_monitor, ofport->netdev);
- hmap_remove(&p->ports, &ofport->hmap_node);
- shash_delete(&p->port_by_name,
- shash_find(&p->port_by_name,
- netdev_get_name(ofport->netdev)));
- if (p->sflow) {
- ofproto_sflow_del_port(p->sflow, ofport->odp_port);
- }
-
+ connmgr_send_port_status(ofport->ofproto->connmgr, &ofport->opp,
+ OFPPR_DELETE);
ofport_free(ofport);
}
{
struct ofproto *ofproto = port->ofproto;
+ if (port->bundle && port->bundle->bond) {
+ bond_slave_set_netdev(port->bundle->bond, port, netdev);
+ }
+
memcpy(port->opp.hw_addr, opp->hw_addr, ETH_ADDR_LEN);
port->opp.config = ((port->opp.config & ~htonl(OFPPC_PORT_DOWN))
| (opp->config & htonl(OFPPC_PORT_DOWN)));
}
static void
-ofport_free(struct ofport *ofport)
+ofport_unregister(struct ofport *port)
{
- if (ofport) {
- cfm_destroy(ofport->cfm);
- netdev_close(ofport->netdev);
- free(ofport);
+ struct ofbundle *bundle = port->bundle;
+
+ if (bundle) {
+ ofproto_bundle_del_port(port);
+ if (list_is_empty(&bundle->ports)) {
+ ofproto_bundle_destroy(bundle);
+ } else if (list_is_short(&bundle->ports)) {
+ bond_destroy(bundle->bond);
+ bundle->bond = NULL;
+ }
+ }
+
+ cfm_destroy(port->cfm);
+ port->cfm = NULL;
+}
+
+void
+ofproto_port_unregister(struct ofproto *ofproto, uint32_t ofp_port)
+{
+ struct ofport *port = get_port(ofproto, ofp_port_to_odp_port(ofp_port));
+ if (port) {
+ ofport_unregister(port);
+ }
+}
+
+static void
+ofport_free(struct ofport *port)
+{
+ if (port) {
+ struct ofproto *ofproto = port->ofproto;
+ const char *name = netdev_get_name(port->netdev);
+
+ ofport_unregister(port);
+
+ netdev_monitor_remove(ofproto->netdev_monitor, port->netdev);
+ hmap_remove(&ofproto->ports, &port->hmap_node);
+ shash_delete(&ofproto->port_by_name,
+ shash_find(&ofproto->port_by_name, name));
+ if (ofproto->sflow) {
+ ofproto_sflow_del_port(ofproto->sflow, port->odp_port);
+ }
+
+ netdev_close(port->netdev);
+ free(port);
}
}
}
}
-/* Ensures that the bytes in 'facet', plus 'extra_bytes', have been passed up
- * to the accounting hook function in the ofhooks structure. */
static void
facet_account(struct ofproto *ofproto,
struct facet *facet, uint64_t extra_bytes)
{
- uint64_t total_bytes = facet->byte_count + extra_bytes;
+ uint64_t total_bytes, n_bytes;
+ struct ofbundle *in_bundle;
+ const struct nlattr *a;
+ tag_type dummy = 0;
+ unsigned int left;
+ int vlan;
- if (ofproto->ofhooks->account_flow_cb
- && total_bytes > facet->accounted_bytes)
- {
- ofproto->ofhooks->account_flow_cb(
- &facet->flow, facet->tags, facet->actions, facet->actions_len,
- total_bytes - facet->accounted_bytes, ofproto->aux);
- facet->accounted_bytes = total_bytes;
+ total_bytes = facet->byte_count + extra_bytes;
+ if (total_bytes <= facet->accounted_bytes) {
+ return;
+ }
+ n_bytes = total_bytes - facet->accounted_bytes;
+ facet->accounted_bytes = total_bytes;
+
+ /* Test that 'tags' is nonzero to ensure that only flows that include an
+ * OFPP_NORMAL action are used for learning and bond slave rebalancing.
+ * This works because OFPP_NORMAL always sets a nonzero tag value.
+ *
+ * Feed information from the active flows back into the learning table to
+ * ensure that table is always in sync with what is actually flowing
+ * through the datapath. */
+ if (!facet->tags
+ || !is_admissible(ofproto, &facet->flow, false, &dummy,
+ &vlan, &in_bundle)) {
+ return;
+ }
+
+ update_learning_table(ofproto, &facet->flow, vlan, in_bundle);
+
+ if (!ofproto->has_bonded_bundles) {
+ return;
+ }
+ NL_ATTR_FOR_EACH_UNSAFE (a, left, facet->actions, facet->actions_len) {
+ if (nl_attr_type(a) == ODP_ACTION_ATTR_OUTPUT) {
+ struct ofport *port = get_port(ofproto, nl_attr_get_u32(a));
+ if (port && port->bundle && port->bundle->bond) {
+ bond_account(port->bundle->bond, &facet->flow, vlan, n_bytes);
+ }
+ }
}
}
return true;
}
\f
+/* Bridge packet processing functions. */
+
+struct dst {
+ struct ofport *port;
+ uint16_t vlan;
+};
+
+struct dst_set {
+ struct dst builtin[32];
+ struct dst *dsts;
+ size_t n, allocated;
+};
+
+static void dst_set_init(struct dst_set *);
+static void dst_set_add(struct dst_set *, const struct dst *);
+static void dst_set_free(struct dst_set *);
+
+static struct ofport *ofbundle_get_a_port(const struct ofbundle *);
+
+static bool
+set_dst(struct action_xlate_ctx *ctx, struct dst *dst,
+ const struct ofbundle *in_bundle, const struct ofbundle *out_bundle)
+{
+ dst->vlan = (out_bundle->vlan >= 0 ? OFP_VLAN_NONE
+ : in_bundle->vlan >= 0 ? in_bundle->vlan
+ : ctx->flow.vlan_tci == 0 ? OFP_VLAN_NONE
+ : vlan_tci_to_vid(ctx->flow.vlan_tci));
+
+ dst->port = (!out_bundle->bond
+ ? ofbundle_get_a_port(out_bundle)
+ : bond_choose_output_slave(out_bundle->bond, &ctx->flow,
+ dst->vlan, &ctx->tags));
+
+ return dst->port != NULL;
+}
+
+static int
+mirror_mask_ffs(mirror_mask_t mask)
+{
+ BUILD_ASSERT_DECL(sizeof(unsigned int) >= sizeof(mask));
+ return ffs(mask);
+}
+
+static void
+dst_set_init(struct dst_set *set)
+{
+ set->dsts = set->builtin;
+ set->n = 0;
+ set->allocated = ARRAY_SIZE(set->builtin);
+}
+
+static void
+dst_set_add(struct dst_set *set, const struct dst *dst)
+{
+ if (set->n >= set->allocated) {
+ size_t new_allocated;
+ struct dst *new_dsts;
+
+ new_allocated = set->allocated * 2;
+ new_dsts = xmalloc(new_allocated * sizeof *new_dsts);
+ memcpy(new_dsts, set->dsts, set->n * sizeof *new_dsts);
+
+ dst_set_free(set);
+
+ set->dsts = new_dsts;
+ set->allocated = new_allocated;
+ }
+ set->dsts[set->n++] = *dst;
+}
+
+static void
+dst_set_free(struct dst_set *set)
+{
+ if (set->dsts != set->builtin) {
+ free(set->dsts);
+ }
+}
+
+static bool
+dst_is_duplicate(const struct dst_set *set, const struct dst *test)
+{
+ size_t i;
+ for (i = 0; i < set->n; i++) {
+ if (set->dsts[i].vlan == test->vlan
+ && set->dsts[i].port == test->port) {
+ return true;
+ }
+ }
+ return false;
+}
+
+static bool
+ofbundle_trunks_vlan(const struct ofbundle *bundle, uint16_t vlan)
+{
+ return bundle->vlan < 0 && vlan_bitmap_contains(bundle->trunks, vlan);
+}
+
+static bool
+ofbundle_includes_vlan(const struct ofbundle *bundle, uint16_t vlan)
+{
+ return vlan == bundle->vlan || ofbundle_trunks_vlan(bundle, vlan);
+}
+
+/* Returns an arbitrary interface within 'bundle'. */
+static struct ofport *
+ofbundle_get_a_port(const struct ofbundle *bundle)
+{
+ return CONTAINER_OF(list_front(&bundle->ports),
+ struct ofport, bundle_node);
+}
+
+static void
+compose_dsts(struct action_xlate_ctx *ctx, uint16_t vlan,
+ const struct ofbundle *in_bundle,
+ const struct ofbundle *out_bundle, struct dst_set *set)
+{
+ struct dst dst;
+
+ if (out_bundle == OFBUNDLE_FLOOD) {
+ struct ofbundle *bundle;
+
+ HMAP_FOR_EACH (bundle, hmap_node, &ctx->ofproto->bundles) {
+ if (bundle != in_bundle
+ && ofbundle_includes_vlan(bundle, vlan)
+ && bundle->floodable
+ && !bundle->mirror_out
+ && set_dst(ctx, &dst, in_bundle, bundle)) {
+ dst_set_add(set, &dst);
+ }
+ }
+ ctx->nf_output_iface = NF_OUT_FLOOD;
+ } else if (out_bundle && set_dst(ctx, &dst, in_bundle, out_bundle)) {
+ dst_set_add(set, &dst);
+ ctx->nf_output_iface = dst.port->odp_port;
+ }
+}
+
+static bool
+vlan_is_mirrored(const struct ofmirror *m, int vlan)
+{
+ return vlan_bitmap_contains(m->vlans, vlan);
+}
+
+static void
+compose_mirror_dsts(struct action_xlate_ctx *ctx,
+ uint16_t vlan, const struct ofbundle *in_bundle,
+ struct dst_set *set)
+{
+ struct ofproto *ofproto = ctx->ofproto;
+ mirror_mask_t mirrors;
+ int flow_vlan;
+ size_t i;
+
+ mirrors = in_bundle->src_mirrors;
+ for (i = 0; i < set->n; i++) {
+ mirrors |= set->dsts[i].port->bundle->dst_mirrors;
+ }
+
+ if (!mirrors) {
+ return;
+ }
+
+ flow_vlan = vlan_tci_to_vid(ctx->flow.vlan_tci);
+ if (flow_vlan == 0) {
+ flow_vlan = OFP_VLAN_NONE;
+ }
+
+ while (mirrors) {
+ struct ofmirror *m = ofproto->mirrors[mirror_mask_ffs(mirrors) - 1];
+ if (vlan_is_mirrored(m, vlan)) {
+ struct dst dst;
+
+ if (m->out) {
+ if (set_dst(ctx, &dst, in_bundle, m->out)
+ && !dst_is_duplicate(set, &dst)) {
+ dst_set_add(set, &dst);
+ }
+ } else {
+ struct ofbundle *bundle;
+
+ HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
+ if (ofbundle_includes_vlan(bundle, m->out_vlan)
+ && set_dst(ctx, &dst, in_bundle, bundle))
+ {
+ if (bundle->vlan < 0) {
+ dst.vlan = m->out_vlan;
+ }
+ if (dst_is_duplicate(set, &dst)) {
+ continue;
+ }
+
+ /* Use the vlan tag on the original flow instead of
+ * the one passed in the vlan parameter. This ensures
+ * that we compare the vlan from before any implicit
+ * tagging tags place. This is necessary because
+ * dst->vlan is the final vlan, after removing implicit
+ * tags. */
+ if (bundle == in_bundle && dst.vlan == flow_vlan) {
+ /* Don't send out input port on same VLAN. */
+ continue;
+ }
+ dst_set_add(set, &dst);
+ }
+ }
+ }
+ }
+ mirrors &= mirrors - 1;
+ }
+}
+
+static void
+compose_actions(struct action_xlate_ctx *ctx, uint16_t vlan,
+ const struct ofbundle *in_bundle,
+ const struct ofbundle *out_bundle)
+{
+ uint16_t initial_vlan, cur_vlan;
+ const struct dst *dst;
+ struct dst_set set;
+
+ dst_set_init(&set);
+ compose_dsts(ctx, vlan, in_bundle, out_bundle, &set);
+ compose_mirror_dsts(ctx, vlan, in_bundle, &set);
+
+ /* Output all the packets we can without having to change the VLAN. */
+ initial_vlan = vlan_tci_to_vid(ctx->flow.vlan_tci);
+ if (initial_vlan == 0) {
+ initial_vlan = OFP_VLAN_NONE;
+ }
+ for (dst = set.dsts; dst < &set.dsts[set.n]; dst++) {
+ if (dst->vlan != initial_vlan) {
+ continue;
+ }
+ nl_msg_put_u32(ctx->odp_actions,
+ ODP_ACTION_ATTR_OUTPUT, dst->port->odp_port);
+ }
+
+ /* Then output the rest. */
+ cur_vlan = initial_vlan;
+ for (dst = set.dsts; dst < &set.dsts[set.n]; dst++) {
+ if (dst->vlan == initial_vlan) {
+ continue;
+ }
+ if (dst->vlan != cur_vlan) {
+ if (dst->vlan == OFP_VLAN_NONE) {
+ nl_msg_put_flag(ctx->odp_actions, ODP_ACTION_ATTR_STRIP_VLAN);
+ } else {
+ ovs_be16 tci;
+ tci = htons(dst->vlan & VLAN_VID_MASK);
+ tci |= ctx->flow.vlan_tci & htons(VLAN_PCP_MASK);
+ nl_msg_put_be16(ctx->odp_actions,
+ ODP_ACTION_ATTR_SET_DL_TCI, tci);
+ }
+ cur_vlan = dst->vlan;
+ }
+ nl_msg_put_u32(ctx->odp_actions,
+ ODP_ACTION_ATTR_OUTPUT, dst->port->odp_port);
+ }
+
+ dst_set_free(&set);
+}
+
+/* Returns the effective vlan of a packet, taking into account both the
+ * 802.1Q header and implicitly tagged ports. A value of 0 indicates that
+ * the packet is untagged and -1 indicates it has an invalid header and
+ * should be dropped. */
+static int
+flow_get_vlan(struct ofproto *ofproto, const struct flow *flow,
+ struct ofbundle *in_bundle, bool have_packet)
+{
+ int vlan = vlan_tci_to_vid(flow->vlan_tci);
+ if (in_bundle->vlan >= 0) {
+ if (vlan) {
+ if (have_packet) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+ VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %d tagged "
+ "packet received on port %s configured with "
+ "implicit VLAN %"PRIu16,
+ ofproto->name, vlan,
+ in_bundle->name, in_bundle->vlan);
+ }
+ return -1;
+ }
+ vlan = in_bundle->vlan;
+ } else {
+ if (!ofbundle_includes_vlan(in_bundle, vlan)) {
+ if (have_packet) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+ VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %d tagged "
+ "packet received on port %s not configured for "
+ "trunking VLAN %d",
+ ofproto->name, vlan, in_bundle->name, vlan);
+ }
+ return -1;
+ }
+ }
+
+ return vlan;
+}
+
+/* A VM broadcasts a gratuitous ARP to indicate that it has resumed after
+ * migration. Older Citrix-patched Linux DomU used gratuitous ARP replies to
+ * indicate this; newer upstream kernels use gratuitous ARP requests. */
+static bool
+is_gratuitous_arp(const struct flow *flow)
+{
+ return (flow->dl_type == htons(ETH_TYPE_ARP)
+ && eth_addr_is_broadcast(flow->dl_dst)
+ && (flow->nw_proto == ARP_OP_REPLY
+ || (flow->nw_proto == ARP_OP_REQUEST
+ && flow->nw_src == flow->nw_dst)));
+}
+
+static void
+update_learning_table(struct ofproto *ofproto,
+ const struct flow *flow, int vlan,
+ struct ofbundle *in_bundle)
+{
+ struct mac_entry *mac;
+
+ if (!mac_learning_may_learn(ofproto->ml, flow->dl_src, vlan)) {
+ return;
+ }
+
+ mac = mac_learning_insert(ofproto->ml, flow->dl_src, vlan);
+ if (is_gratuitous_arp(flow)) {
+ /* We don't want to learn from gratuitous ARP packets that are
+ * reflected back over bond slaves so we lock the learning table. */
+ if (!in_bundle->bond) {
+ mac_entry_set_grat_arp_lock(mac);
+ } else if (mac_entry_is_grat_arp_locked(mac)) {
+ return;
+ }
+ }
+
+ if (mac_entry_is_new(mac) || mac->port.p != in_bundle) {
+ /* The log messages here could actually be useful in debugging,
+ * so keep the rate limit relatively high. */
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(30, 300);
+ VLOG_DBG_RL(&rl, "bridge %s: learned that "ETH_ADDR_FMT" is "
+ "on port %s in VLAN %d",
+ ofproto->name, ETH_ADDR_ARGS(flow->dl_src),
+ in_bundle->name, vlan);
+
+ mac->port.p = in_bundle;
+ tag_set_add(&ofproto->revalidate_set,
+ mac_learning_changed(ofproto->ml, mac));
+ }
+}
+
+/* Determines whether packets in 'flow' within 'br' should be forwarded or
+ * dropped. Returns true if they may be forwarded, false if they should be
+ * dropped.
+ *
+ * If 'have_packet' is true, it indicates that the caller is processing a
+ * received packet. If 'have_packet' is false, then the caller is just
+ * revalidating an existing flow because configuration has changed. Either
+ * way, 'have_packet' only affects logging (there is no point in logging errors
+ * during revalidation).
+ *
+ * Sets '*in_portp' to the input port. This will be a null pointer if
+ * flow->in_port does not designate a known input port (in which case
+ * is_admissible() returns false).
+ *
+ * When returning true, sets '*vlanp' to the effective VLAN of the input
+ * packet, as returned by flow_get_vlan().
+ *
+ * May also add tags to '*tags', although the current implementation only does
+ * so in one special case.
+ */
+static bool
+is_admissible(struct ofproto *ofproto, const struct flow *flow,
+ bool have_packet,
+ tag_type *tags, int *vlanp, struct ofbundle **in_bundlep)
+{
+ struct ofport *in_port;
+ struct ofbundle *in_bundle;
+ int vlan;
+
+ /* Find the port and bundle for the received packet. */
+ in_port = get_port(ofproto, flow->in_port);
+ *in_bundlep = in_bundle = in_port->bundle;
+ if (!in_port || !in_bundle) {
+ /* No interface? Something fishy... */
+ if (have_packet) {
+ /* Odd. A few possible reasons here:
+ *
+ * - We deleted a port but there are still a few packets queued up
+ * from it.
+ *
+ * - Someone externally added a port (e.g. "ovs-dpctl add-if") that
+ * we don't know about.
+ *
+ * - Packet arrived on the local port but the local port is not
+ * part of a bundle.
+ */
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+
+ VLOG_WARN_RL(&rl, "bridge %s: received packet on unknown "
+ "port %"PRIu16,
+ ofproto->name, flow->in_port);
+ }
+ return false;
+ }
+ *vlanp = vlan = flow_get_vlan(ofproto, flow, in_bundle, have_packet);
+ if (vlan < 0) {
+ return false;
+ }
+
+ /* Drop frames for reserved multicast addresses. */
+ if (eth_addr_is_reserved(flow->dl_dst)) {
+ return false;
+ }
+
+ /* Drop frames on bundles reserved for mirroring. */
+ if (in_bundle->mirror_out) {
+ if (have_packet) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+ VLOG_WARN_RL(&rl, "bridge %s: dropping packet received on port "
+ "%s, which is reserved exclusively for mirroring",
+ ofproto->name, in_bundle->name);
+ }
+ return false;
+ }
+
+ if (in_bundle->bond) {
+ struct mac_entry *mac;
+
+ switch (bond_check_admissibility(in_bundle->bond, in_port,
+ flow->dl_dst, tags)) {
+ case BV_ACCEPT:
+ break;
+
+ case BV_DROP:
+ return false;
+
+ case BV_DROP_IF_MOVED:
+ mac = mac_learning_lookup(ofproto->ml, flow->dl_src, vlan, NULL);
+ if (mac && mac->port.p != in_bundle &&
+ (!is_gratuitous_arp(flow)
+ || mac_entry_is_grat_arp_locked(mac))) {
+ return false;
+ }
+ break;
+ }
+ }
+
+ return true;
+}
+
+/* If the composed actions may be applied to any packet in the given 'flow',
+ * returns true. Otherwise, the actions should only be applied to 'packet', or
+ * not at all, if 'packet' was NULL. */
+static bool
+xlate_normal(struct action_xlate_ctx *ctx)
+{
+ struct ofbundle *in_bundle;
+ struct ofbundle *out_bundle;
+ struct mac_entry *mac;
+ int vlan;
+
+ /* Check whether we should drop packets in this flow. */
+ if (!is_admissible(ctx->ofproto, &ctx->flow, ctx->packet != NULL,
+ &ctx->tags, &vlan, &in_bundle)) {
+ out_bundle = NULL;
+ goto done;
+ }
+
+ /* Learn source MAC (but don't try to learn from revalidation). */
+ if (ctx->packet) {
+ update_learning_table(ctx->ofproto, &ctx->flow, vlan, in_bundle);
+ }
+
+ /* Determine output bundle. */
+ mac = mac_learning_lookup(ctx->ofproto->ml, ctx->flow.dl_dst, vlan,
+ &ctx->tags);
+ if (mac) {
+ out_bundle = mac->port.p;
+ } else if (!ctx->packet && !eth_addr_is_multicast(ctx->flow.dl_dst)) {
+ /* If we are revalidating but don't have a learning entry then eject
+ * the flow. Installing a flow that floods packets opens up a window
+ * of time where we could learn from a packet reflected on a bond and
+ * blackhole packets before the learning table is updated to reflect
+ * the correct port. */
+ return false;
+ } else {
+ out_bundle = OFBUNDLE_FLOOD;
+ }
+
+ /* Don't send packets out their input bundles. */
+ if (in_bundle == out_bundle) {
+ out_bundle = NULL;
+ }
+
+done:
+ if (in_bundle) {
+ compose_actions(ctx, vlan, in_bundle, out_bundle);
+ }
+
+ return true;
+}
+\f
static void
send_error_oh(const struct ofconn *ofconn, const struct ofp_header *oh,
int error)
xlate_table_action(ctx, ctx->flow.in_port);
break;
case OFPP_NORMAL:
- if (!ctx->ofproto->ofhooks->normal_cb(&ctx->flow, ctx->packet,
- ctx->odp_actions, &ctx->tags,
- &ctx->nf_output_iface,
- ctx->ofproto->aux)) {
- COVERAGE_INC(ofproto_uninstallable);
- ctx->may_set_up_flow = false;
- }
+ xlate_normal(ctx);
break;
case OFPP_FLOOD:
flood_packets(ctx->ofproto, ctx->flow.in_port, htonl(OFPPC_NO_FLOOD),
}
}
+static void
+xlate_autopath(struct action_xlate_ctx *ctx,
+ const struct nx_action_autopath *naa)
+{
+ uint16_t ofp_port = ntohl(naa->id);
+ struct ofport *port;
+
+ port = get_port(ctx->ofproto, ofp_port_to_odp_port(ofp_port));
+ if (!port || !port->bundle) {
+ ofp_port = OFPP_NONE;
+ } else if (port->bundle->bond) {
+ /* Autopath does not support VLAN hashing. */
+ struct ofport *slave = bond_choose_output_slave(
+ port->bundle->bond, &ctx->flow, OFP_VLAN_NONE, &ctx->tags);
+ if (slave) {
+ ofp_port = odp_port_to_ofp_port(slave->odp_port);
+ }
+ }
+ autopath_execute(naa, &ctx->flow, ofp_port);
+}
+
static void
xlate_nicira_action(struct action_xlate_ctx *ctx,
const struct nx_action_header *nah)
const struct nx_action_multipath *nam;
const struct nx_action_autopath *naa;
enum nx_action_subtype subtype = ntohs(nah->subtype);
- const struct ofhooks *ofhooks = ctx->ofproto->ofhooks;
struct xlate_reg_state state;
- uint16_t autopath_port;
ovs_be64 tun_id;
assert(nah->vendor == htonl(NX_VENDOR_ID));
case NXAST_AUTOPATH:
naa = (const struct nx_action_autopath *) nah;
- autopath_port = (ofhooks->autopath_cb
- ? ofhooks->autopath_cb(&ctx->flow, ntohl(naa->id),
- &ctx->tags, ctx->ofproto->aux)
- : OFPP_NONE);
- autopath_execute(naa, &ctx->flow, autopath_port);
+ xlate_autopath(ctx, naa);
break;
/* If you add a new action here that modifies flow data, don't forget to
ctx->check_special = true;
}
-static void
-ofproto_process_cfm(struct ofproto *ofproto, const struct flow *flow,
- const struct ofpbuf *packet)
+static bool
+ofproto_process_special(struct ofproto *ofproto, const struct flow *flow,
+ const struct ofpbuf *packet)
{
- struct ofport *ofport;
-
- ofport = get_port(ofproto, flow->in_port);
- if (ofport && ofport->cfm) {
- cfm_process_heartbeat(ofport->cfm, packet);
+ if (cfm_should_process_flow(flow)) {
+ struct ofport *ofport = get_port(ofproto, flow->in_port);
+ if (ofport && ofport->cfm) {
+ cfm_process_heartbeat(ofport->cfm, packet);
+ }
+ return true;
+ } else if (flow->dl_type == htons(ETH_TYPE_LACP)) {
+ struct ofport *port = get_port(ofproto, flow->in_port);
+ if (port && port->bundle && port->bundle->lacp) {
+ const struct lacp_pdu *pdu = parse_lacp_packet(packet);
+ if (pdu) {
+ lacp_process_pdu(port->bundle->lacp, port, pdu);
+ }
+ return true;
+ }
}
+ return false;
}
static struct ofpbuf *
ctx->recurse = 0;
ctx->last_pop_priority = -1;
- if (ctx->check_special && cfm_should_process_flow(&ctx->flow)) {
- if (ctx->packet) {
- ofproto_process_cfm(ctx->ofproto, &ctx->flow, ctx->packet);
- }
- ctx->may_set_up_flow = false;
- } else if (ctx->check_special
- && ctx->ofproto->ofhooks->special_cb
- && !ctx->ofproto->ofhooks->special_cb(&ctx->flow, ctx->packet,
- ctx->ofproto->aux)) {
+ if (ctx->check_special
+ && ofproto_process_special(ctx->ofproto, &ctx->flow, ctx->packet)) {
ctx->may_set_up_flow = false;
} else {
do_xlate_actions(in, n_in, ctx);
/* Set header pointers in 'flow'. */
flow_extract(upcall->packet, flow.tun_id, flow.in_port, &flow);
- if (cfm_should_process_flow(&flow)) {
- ofproto_process_cfm(p, &flow, upcall->packet);
- ofpbuf_delete(upcall->packet);
- return;
- } else if (p->ofhooks->special_cb
- && !p->ofhooks->special_cb(&flow, upcall->packet, p->aux)) {
+ /* Handle 802.1ag and LACP. */
+ if (ofproto_process_special(p, &flow, upcall->packet)) {
ofpbuf_delete(upcall->packet);
return;
}
rule_expire(ofproto, rule);
}
- /* Let the hook know that we're at a stable point: all outstanding data
- * in existing flows has been accounted to the account_cb. Thus, the
- * hook can now reasonably do operations that depend on having accurate
- * flow volume accounting (currently, that's just bond rebalancing). */
- if (ofproto->ofhooks->account_checkpoint_cb) {
- ofproto->ofhooks->account_checkpoint_cb(ofproto->aux);
+ /* All outstanding data in existing flows has been accounted, so it's a
+ * good time to do bond rebalancing. */
+ if (ofproto->has_bonded_bundles) {
+ struct ofbundle *bundle;
+
+ HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
+ if (bundle->bond) {
+ bond_rebalance(bundle->bond, &ofproto->revalidate_set);
+ }
+ }
}
return MIN(dp_max_idle, 1000);
free(args);
}
+static void
+ofproto_unixctl_fdb_show(struct unixctl_conn *conn,
+ const char *args, void *aux OVS_UNUSED)
+{
+ struct ds ds = DS_EMPTY_INITIALIZER;
+ const struct ofproto *ofproto;
+ const struct mac_entry *e;
+
+ ofproto = ofproto_lookup(args);
+ if (!ofproto) {
+ unixctl_command_reply(conn, 501, "no such bridge");
+ return;
+ }
+
+ ds_put_cstr(&ds, " port VLAN MAC Age\n");
+ LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
+ struct ofbundle *bundle = e->port.p;
+ ds_put_format(&ds, "%5d %4d "ETH_ADDR_FMT" %3d\n",
+ ofbundle_get_a_port(bundle)->odp_port,
+ e->vlan, ETH_ADDR_ARGS(e->mac), mac_entry_age(e));
+ }
+ unixctl_command_reply(conn, 200, ds_cstr(&ds));
+ ds_destroy(&ds);
+}
+
static void
ofproto_unixctl_init(void)
{
unixctl_command_register("ofproto/list", ofproto_unixctl_list, NULL);
unixctl_command_register("ofproto/trace", ofproto_unixctl_trace, NULL);
+ unixctl_command_register("fdb/show", ofproto_unixctl_fdb_show, NULL);
}
-\f
-static bool
-default_normal_ofhook_cb(const struct flow *flow, const struct ofpbuf *packet,
- struct ofpbuf *odp_actions, tag_type *tags,
- uint16_t *nf_output_iface, void *ofproto_)
-{
- struct ofproto *ofproto = ofproto_;
- struct mac_entry *dst_mac;
-
- /* Drop frames for reserved multicast addresses. */
- if (eth_addr_is_reserved(flow->dl_dst)) {
- return true;
- }
-
- /* Learn source MAC (but don't try to learn from revalidation). */
- if (packet != NULL
- && mac_learning_may_learn(ofproto->ml, flow->dl_src, 0)) {
- struct mac_entry *src_mac;
-
- src_mac = mac_learning_insert(ofproto->ml, flow->dl_src, 0);
- if (mac_entry_is_new(src_mac) || src_mac->port.i != flow->in_port) {
- /* The log messages here could actually be useful in debugging,
- * so keep the rate limit relatively high. */
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(30, 300);
- VLOG_DBG_RL(&rl, "learned that "ETH_ADDR_FMT" is on port %"PRIu16,
- ETH_ADDR_ARGS(flow->dl_src), flow->in_port);
-
- ofproto_revalidate(ofproto,
- mac_learning_changed(ofproto->ml, src_mac));
- src_mac->port.i = flow->in_port;
- }
- }
-
- /* Determine output port. */
- dst_mac = mac_learning_lookup(ofproto->ml, flow->dl_dst, 0, tags);
- if (!dst_mac) {
- flood_packets(ofproto, flow->in_port, htonl(OFPPC_NO_FLOOD),
- nf_output_iface, odp_actions);
- } else {
- int out_port = dst_mac->port.i;
- if (out_port != flow->in_port) {
- nl_msg_put_u32(odp_actions, ODP_ACTION_ATTR_OUTPUT, out_port);
- *nf_output_iface = out_port;
- } else {
- /* Drop. */
- }
- }
-
- return true;
-}
-
-static const struct ofhooks default_ofhooks = {
- default_normal_ofhook_cb,
- NULL,
- NULL,
- NULL,
- NULL
-};
VLOG_DEFINE_THIS_MODULE(bridge);
-COVERAGE_DEFINE(bridge_flush);
-COVERAGE_DEFINE(bridge_process_flow);
COVERAGE_DEFINE(bridge_reconfigure);
-struct dst {
- struct iface *iface;
- uint16_t vlan;
-};
-
-struct dst_set {
- struct dst builtin[32];
- struct dst *dsts;
- size_t n, allocated;
-};
-
-static void dst_set_init(struct dst_set *);
-static void dst_set_add(struct dst_set *, const struct dst *);
-static void dst_set_free(struct dst_set *);
-
struct iface {
/* These members are always valid. */
struct list port_elem; /* Element in struct port's "ifaces" list. */
const struct ovsrec_interface *cfg;
};
-#define MAX_MIRRORS 32
-typedef uint32_t mirror_mask_t;
-#define MIRROR_MASK_C(X) UINT32_C(X)
-BUILD_ASSERT_DECL(sizeof(mirror_mask_t) * CHAR_BIT >= MAX_MIRRORS);
struct mirror {
+ struct uuid uuid; /* UUID of this "mirror" record in database. */
+ struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
struct bridge *bridge;
- size_t idx;
char *name;
- struct uuid uuid; /* UUID of this "mirror" record in database. */
-
- /* Selection criteria. */
- struct sset src_ports; /* Source port names. */
- struct sset dst_ports; /* Destination port names. */
- int *vlans;
- size_t n_vlans;
-
- /* Output. */
- struct port *out_port;
- int out_vlan;
};
-#define FLOOD_PORT ((struct port *) 1) /* The 'flood' output port. */
struct port {
struct bridge *bridge;
struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
char *name;
- int vlan; /* -1=trunk port, else a 12-bit VLAN ID. */
- unsigned long *trunks; /* Bitmap of trunked VLANs, if 'vlan' == -1.
- * NULL if all VLANs are trunked. */
const struct ovsrec_port *cfg;
/* An ordinary bridge port has 1 interface.
* A bridge port for bonding has at least 2 interfaces. */
struct list ifaces; /* List of "struct iface"s. */
-
- struct lacp *lacp; /* NULL if LACP is not enabled. */
-
- /* Bonding info. */
- struct bond *bond;
-
- /* Port mirroring info. */
- mirror_mask_t src_mirrors; /* Mirrors triggered when packet received. */
- mirror_mask_t dst_mirrors; /* Mirrors triggered when packet sent. */
- bool is_mirror_output_port; /* Does port mirroring send frames here? */
};
struct bridge {
struct hmap_node node; /* In 'all_bridges'. */
char *name; /* User-specified arbitrary name. */
char *type; /* Datapath type. */
- struct mac_learning *ml; /* MAC learning table. */
uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
const struct ovsrec_bridge *cfg;
struct hmap ifaces; /* "struct iface"s indexed by dp_ifidx. */
struct hmap iface_by_name; /* "struct iface"s indexed by name. */
- /* Bonding. */
- bool has_bonded_ports;
-
- /* Flow tracking. */
- bool flush;
-
/* Port mirroring. */
- struct mirror *mirrors[MAX_MIRRORS];
+ struct hmap mirrors; /* "struct mirror" indexed by UUID. */
/* Synthetic local port if necessary. */
struct ovsrec_port synth_local_port;
static struct bridge *bridge_lookup(const char *name);
static unixctl_cb_func bridge_unixctl_dump_flows;
static unixctl_cb_func bridge_unixctl_reconnect;
-static int bridge_run_one(struct bridge *);
static size_t bridge_get_controllers(const struct bridge *br,
struct ovsrec_controller ***controllersp);
static void bridge_add_del_ports(struct bridge *);
static void bridge_configure_datapath_id(struct bridge *);
static void bridge_configure_netflow(struct bridge *);
static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
-static void bridge_reconfigure_remotes(struct bridge *,
- const struct sockaddr_in *managers,
- size_t n_managers);
-static void bridge_flush(struct bridge *);
+static void bridge_configure_remotes(struct bridge *,
+ const struct sockaddr_in *managers,
+ size_t n_managers);
static void bridge_pick_local_hw_addr(struct bridge *,
uint8_t ea[ETH_ADDR_LEN],
struct iface **hw_addr_iface);
const char *name);
static bool port_is_bond_fake_iface(const struct port *);
-static unixctl_cb_func bridge_unixctl_fdb_show;
static unixctl_cb_func cfm_unixctl_show;
static unixctl_cb_func qos_unixctl_show;
-static void port_run(struct port *);
-static void port_wait(struct port *);
-static void port_reconfigure(struct port *);
static struct port *port_create(struct bridge *, const struct ovsrec_port *);
static void port_add_ifaces(struct port *);
static void port_del_ifaces(struct port *);
static void port_destroy(struct port *);
static struct port *port_lookup(const struct bridge *, const char *name);
-static struct iface *port_get_an_iface(const struct port *);
-static struct port *port_from_dp_ifidx(const struct bridge *,
- uint16_t dp_ifidx);
-static void port_reconfigure_lacp(struct port *);
-static void port_reconfigure_bond(struct port *);
-static void port_send_learning_packets(struct port *);
-
-static void mirror_create(struct bridge *, struct ovsrec_mirror *);
+static void port_configure(struct port *);
+static struct lacp_settings *port_configure_lacp(struct port *,
+ struct lacp_settings *);
+static void port_configure_bond(struct port *, struct bond_settings *);
+
+static void bridge_configure_mirrors(struct bridge *);
+static struct mirror *mirror_create(struct bridge *,
+ const struct ovsrec_mirror *);
static void mirror_destroy(struct mirror *);
-static void mirror_reconfigure(struct bridge *);
-static void mirror_reconfigure_one(struct mirror *, struct ovsrec_mirror *);
-static bool vlan_is_mirrored(const struct mirror *, int vlan);
+static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *);
+static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
static struct iface *iface_create(struct port *port,
const struct ovsrec_interface *if_cfg);
static void iface_destroy(struct iface *);
struct shash *);
static void shash_to_ovs_idl_map(struct shash *,
char ***keys, char ***values, size_t *n);
-
-/* Hooks into ofproto processing. */
-static struct ofhooks bridge_ofhooks;
\f
/* Public functions. */
ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
/* Register unixctl commands. */
- unixctl_command_register("fdb/show", bridge_unixctl_fdb_show, NULL);
unixctl_command_register("cfm/show", cfm_unixctl_show, NULL);
unixctl_command_register("qos/show", qos_unixctl_show, NULL);
unixctl_command_register("bridge/dump-flows", bridge_unixctl_dump_flows,
HMAP_FOR_EACH (br, node, &all_bridges) {
struct port *port;
- br->has_bonded_ports = false;
HMAP_FOR_EACH (port, hmap_node, &br->ports) {
struct iface *iface;
- port_reconfigure(port);
- port_reconfigure_lacp(port);
- port_reconfigure_bond(port);
+ port_configure(port);
HMAP_FOR_EACH (iface, dp_ifidx_node, &br->ifaces) {
iface_configure_cfm(iface);
iface_set_mac(iface);
}
}
- mirror_reconfigure(br);
-
+ bridge_configure_mirrors(br);
bridge_configure_datapath_id(br);
- bridge_reconfigure_remotes(br, managers, n_managers);
+ bridge_configure_remotes(br, managers, n_managers);
bridge_configure_netflow(br);
bridge_configure_sflow(br, &sflow_bridge_number);
}
static bool
bridge_add_dp(struct bridge *br)
{
- int error;
-
- error = ofproto_create(br->name, br->type, &bridge_ofhooks, br,
- &br->ofproto);
+ int error = ofproto_create(br->name, br->type, &br->ofproto);
if (error) {
- VLOG_ERR("failed to create bridge %s: %s",
- br->name, strerror(error));
+ VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
return false;
}
return true;
}
+static void
+port_configure(struct port *port)
+{
+ const struct ovsrec_port *cfg = port->cfg;
+ struct bond_settings bond_settings;
+ struct lacp_settings lacp_settings;
+ struct ofproto_bundle_settings s;
+ struct iface *iface;
+
+ /* Get name. */
+ s.name = port->name;
+
+ /* Get slaves. */
+ s.n_slaves = 0;
+ s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
+ LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
+ s.slaves[s.n_slaves++] = iface->dp_ifidx;
+ }
+
+ /* Get VLAN tag. */
+ s.vlan = -1;
+ if (cfg->tag) {
+ if (list_is_short(&port->ifaces)) {
+ if (*cfg->tag >= 0 && *cfg->tag <= 4095) {
+ s.vlan = *cfg->tag;
+ VLOG_DBG("port %s: assigning VLAN tag %d", port->name, s.vlan);
+ }
+ } else {
+ /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
+ * they even work as-is. But they have not been tested. */
+ VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
+ port->name);
+ }
+ }
+
+ /* Get VLAN trunks. */
+ s.trunks = NULL;
+ if (s.vlan < 0 && cfg->n_trunks) {
+ s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
+ } else if (s.vlan >= 0 && cfg->n_trunks) {
+ VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
+ port->name);
+ }
+
+ /* Get LACP settings. */
+ s.lacp = port_configure_lacp(port, &lacp_settings);
+ if (s.lacp) {
+ size_t i = 0;
+
+ s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
+ LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
+ iface_configure_lacp(iface, &s.lacp_slaves[i++]);
+ }
+ } else {
+ s.lacp_slaves = NULL;
+ }
+
+ /* Get bond settings. */
+ if (s.n_slaves > 1) {
+ port_configure_bond(port, &bond_settings);
+ s.bond = &bond_settings;
+ } else {
+ s.bond = NULL;
+ }
+
+ /* Register. */
+ ofproto_bundle_register(port->bridge->ofproto, port, &s);
+
+ /* Clean up. */
+ free(s.trunks);
+ free(s.lacp_slaves);
+}
+
/* Pick local port hardware address and datapath ID for 'br'. */
static void
bridge_configure_datapath_id(struct bridge *br)
br->name, name, strerror(error));
}
if (iface) {
- if (iface->port->bond) {
- /* The bond has a pointer to the netdev, so remove it from
- * the bond before closing the netdev. The slave will get
- * added back to the bond later, after a new netdev is
- * available. */
- bond_slave_unregister(iface->port->bond, iface);
- }
+ ofproto_port_unregister(br->ofproto, ofproto_port.ofp_port);
netdev_close(iface->netdev);
iface->netdev = NULL;
}
struct iface *iface;
/* Mirror output ports don't participate. */
- if (port->is_mirror_output_port) {
+ if (ofproto_is_mirror_output_bundle(br->ofproto, port)) {
continue;
}
static bool
iface_refresh_lacp_stats(struct iface *iface)
{
- bool *db_current = iface->cfg->lacp_current;
- bool changed = false;
-
- if (iface->port->lacp) {
- bool current = lacp_slave_is_current(iface->port->lacp, iface);
+ struct ofproto *ofproto = iface->port->bridge->ofproto;
+ uint16_t ofp_port = odp_port_to_ofp_port(iface->dp_ifidx);
+ int old = iface->cfg->lacp_current ? *iface->cfg->lacp_current : -1;
+ int new = ofproto_port_is_lacp_current(ofproto, ofp_port);
- if (!db_current || *db_current != current) {
- changed = true;
- ovsrec_interface_set_lacp_current(iface->cfg, ¤t, 1);
- }
- } else if (db_current) {
- changed = true;
- ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
+ if (old != new) {
+ bool current = new;
+ ovsrec_interface_set_lacp_current(iface->cfg, ¤t, new >= 0);
}
-
- return changed;
+ return old != new;
}
static void
/* Let each bridge do the work that it needs to do. */
datapath_destroyed = false;
HMAP_FOR_EACH (br, node, &all_bridges) {
- int error = bridge_run_one(br);
+ int error = ofproto_run(br->ofproto);
if (error) {
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, "
struct bridge *br;
HMAP_FOR_EACH (br, node, &all_bridges) {
- struct port *port;
-
ofproto_wait(br->ofproto);
- mac_learning_wait(br->ml);
- HMAP_FOR_EACH (port, hmap_node, &br->ports) {
- port_wait(port);
- }
}
ovsdb_idl_wait(idl);
poll_timer_wait_until(stats_timer);
poll_timer_wait_until(db_limiter);
}
}
-
-/* Forces 'br' to revalidate all of its flows. This is appropriate when 'br''s
- * configuration changes. */
-static void
-bridge_flush(struct bridge *br)
-{
- COVERAGE_INC(bridge_flush);
- br->flush = true;
-}
-\f
-/* Bridge unixctl user interface functions. */
-static void
-bridge_unixctl_fdb_show(struct unixctl_conn *conn,
- const char *args, void *aux OVS_UNUSED)
-{
- struct ds ds = DS_EMPTY_INITIALIZER;
- const struct bridge *br;
- const struct mac_entry *e;
-
- br = bridge_lookup(args);
- if (!br) {
- unixctl_command_reply(conn, 501, "no such bridge");
- return;
- }
-
- ds_put_cstr(&ds, " port VLAN MAC Age\n");
- LIST_FOR_EACH (e, lru_node, &br->ml->lrus) {
- struct port *port = e->port.p;
- ds_put_format(&ds, "%5d %4d "ETH_ADDR_FMT" %3d\n",
- port_get_an_iface(port)->dp_ifidx,
- e->vlan, ETH_ADDR_ARGS(e->mac), mac_entry_age(e));
- }
- unixctl_command_reply(conn, 200, ds_cstr(&ds));
- ds_destroy(&ds);
-}
\f
/* CFM unixctl user interface functions. */
static void
br->name = xstrdup(br_cfg->name);
br->type = xstrdup(dpif_normalize_type(br_cfg->datapath_type));
br->cfg = br_cfg;
- br->ml = mac_learning_create();
eth_addr_nicira_random(br->default_ea);
hmap_init(&br->ports);
hmap_init(&br->ifaces);
hmap_init(&br->iface_by_name);
-
- br->flush = false;
+ hmap_init(&br->mirrors);
hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
}
bridge_destroy(struct bridge *br)
{
if (br) {
- struct port *port, *next;
- int i;
+ struct mirror *mirror, *next_mirror;
+ struct port *port, *next_port;
- HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
+ HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
port_destroy(port);
}
- for (i = 0; i < MAX_MIRRORS; i++) {
- mirror_destroy(br->mirrors[i]);
+ HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
+ mirror_destroy(mirror);
}
hmap_remove(&all_bridges, &br->node);
ofproto_destroy(br->ofproto);
- mac_learning_destroy(br->ml);
hmap_destroy(&br->ifaces);
hmap_destroy(&br->ports);
hmap_destroy(&br->iface_by_name);
+ hmap_destroy(&br->mirrors);
free(br->name);
free(br->type);
free(br);
unixctl_command_reply(conn, 200, NULL);
}
-static int
-bridge_run_one(struct bridge *br)
-{
- struct port *port;
- int error;
-
- error = ofproto_run1(br->ofproto);
- if (error) {
- return error;
- }
-
- mac_learning_run(br->ml, ofproto_get_revalidate_set(br->ofproto));
-
- HMAP_FOR_EACH (port, hmap_node, &br->ports) {
- port_run(port);
- }
-
- error = ofproto_run2(br->ofproto, br->flush);
- br->flush = false;
-
- return error;
-}
-
static size_t
bridge_get_controllers(const struct bridge *br,
struct ovsrec_controller ***controllersp)
}
static void
-bridge_reconfigure_remotes(struct bridge *br,
- const struct sockaddr_in *managers,
- size_t n_managers)
+bridge_configure_remotes(struct bridge *br,
+ const struct sockaddr_in *managers, size_t n_managers)
{
const char *disable_ib_str, *queue_id_str;
bool disable_in_band = false;
}
}
\f
-/* Bridge packet processing functions. */
+/* Port functions. */
-static bool
-set_dst(struct dst *dst, const struct flow *flow,
- const struct port *in_port, const struct port *out_port,
- tag_type *tags)
+static struct port *
+port_create(struct bridge *br, const struct ovsrec_port *cfg)
{
- dst->vlan = (out_port->vlan >= 0 ? OFP_VLAN_NONE
- : in_port->vlan >= 0 ? in_port->vlan
- : flow->vlan_tci == 0 ? OFP_VLAN_NONE
- : vlan_tci_to_vid(flow->vlan_tci));
+ struct port *port;
- dst->iface = (!out_port->bond
- ? port_get_an_iface(out_port)
- : bond_choose_output_slave(out_port->bond, flow,
- dst->vlan, tags));
+ port = xzalloc(sizeof *port);
+ port->bridge = br;
+ port->name = xstrdup(cfg->name);
+ port->cfg = cfg;
+ list_init(&port->ifaces);
- return dst->iface != NULL;
-}
+ hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
-static int
-mirror_mask_ffs(mirror_mask_t mask)
-{
- BUILD_ASSERT_DECL(sizeof(unsigned int) >= sizeof(mask));
- return ffs(mask);
-}
+ VLOG_INFO("created port %s on bridge %s", port->name, br->name);
-static void
-dst_set_init(struct dst_set *set)
-{
- set->dsts = set->builtin;
- set->n = 0;
- set->allocated = ARRAY_SIZE(set->builtin);
+ return port;
}
-static void
-dst_set_add(struct dst_set *set, const struct dst *dst)
+static const char *
+get_port_other_config(const struct ovsrec_port *port, const char *key,
+ const char *default_value)
{
- if (set->n >= set->allocated) {
- size_t new_allocated;
- struct dst *new_dsts;
+ const char *value;
- new_allocated = set->allocated * 2;
- new_dsts = xmalloc(new_allocated * sizeof *new_dsts);
- memcpy(new_dsts, set->dsts, set->n * sizeof *new_dsts);
+ value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
+ key);
+ return value ? value : default_value;
+}
- dst_set_free(set);
+static const char *
+get_interface_other_config(const struct ovsrec_interface *iface,
+ const char *key, const char *default_value)
+{
+ const char *value;
- set->dsts = new_dsts;
- set->allocated = new_allocated;
- }
- set->dsts[set->n++] = *dst;
+ value = get_ovsrec_key_value(&iface->header_,
+ &ovsrec_interface_col_other_config, key);
+ return value ? value : default_value;
}
+/* Deletes interfaces from 'port' that are no longer configured for it. */
static void
-dst_set_free(struct dst_set *set)
+port_del_ifaces(struct port *port)
{
- if (set->dsts != set->builtin) {
- free(set->dsts);
+ struct iface *iface, *next;
+ struct sset new_ifaces;
+ size_t i;
+
+ /* Collect list of new interfaces. */
+ sset_init(&new_ifaces);
+ for (i = 0; i < port->cfg->n_interfaces; i++) {
+ const char *name = port->cfg->interfaces[i]->name;
+ sset_add(&new_ifaces, name);
}
-}
-static bool
-dst_is_duplicate(const struct dst_set *set, const struct dst *test)
-{
- size_t i;
- for (i = 0; i < set->n; i++) {
- if (set->dsts[i].vlan == test->vlan
- && set->dsts[i].iface == test->iface) {
- return true;
+ /* Get rid of deleted interfaces. */
+ LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
+ if (!sset_contains(&new_ifaces, iface->name)) {
+ iface_destroy(iface);
}
}
- return false;
-}
-
-static bool
-port_trunks_vlan(const struct port *port, uint16_t vlan)
-{
- return (port->vlan < 0 || vlan_bitmap_contains(port->trunks, vlan));
-}
-static bool
-port_includes_vlan(const struct port *port, uint16_t vlan)
-{
- return vlan == port->vlan || port_trunks_vlan(port, vlan);
+ sset_destroy(&new_ifaces);
}
-static bool
-port_is_floodable(const struct port *port)
+/* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
+ * existing ones. */
+static void
+port_add_ifaces(struct port *port)
{
- struct iface *iface;
+ struct shash new_ifaces;
+ struct shash_node *node;
+ size_t i;
- LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
- if (!ofproto_port_is_floodable(port->bridge->ofproto,
- iface->dp_ifidx)) {
- return false;
+ /* Collect new ifaces. */
+ shash_init(&new_ifaces);
+ for (i = 0; i < port->cfg->n_interfaces; i++) {
+ const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
+ if (!shash_add_once(&new_ifaces, cfg->name, cfg)) {
+ VLOG_WARN("port %s: %s specified twice as port interface",
+ port->name, cfg->name);
+ iface_set_ofport(cfg, -1);
}
}
- return true;
-}
-
-/* Returns an arbitrary interface within 'port'. */
-static struct iface *
-port_get_an_iface(const struct port *port)
-{
- return CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
-}
-
-static void
-compose_dsts(const struct bridge *br, const struct flow *flow, uint16_t vlan,
- const struct port *in_port, const struct port *out_port,
- struct dst_set *set, tag_type *tags, uint16_t *nf_output_iface)
-{
- struct dst dst;
- if (out_port == FLOOD_PORT) {
- struct port *port;
+ /* Create new interfaces.
+ * Update interface types and 'cfg' members. */
+ SHASH_FOR_EACH (node, &new_ifaces) {
+ const struct ovsrec_interface *cfg = node->data;
+ const char *iface_name = node->name;
+ struct iface *iface;
- HMAP_FOR_EACH (port, hmap_node, &br->ports) {
- if (port != in_port
- && port_is_floodable(port)
- && port_includes_vlan(port, vlan)
- && !port->is_mirror_output_port
- && set_dst(&dst, flow, in_port, port, tags)) {
- dst_set_add(set, &dst);
- }
+ iface = iface_lookup(port->bridge, iface_name);
+ if (!iface) {
+ iface = iface_create(port, cfg);
+ } else {
+ iface->cfg = cfg;
}
- *nf_output_iface = NF_OUT_FLOOD;
- } else if (out_port && set_dst(&dst, flow, in_port, out_port, tags)) {
- dst_set_add(set, &dst);
- *nf_output_iface = dst.iface->dp_ifidx;
+
+ /* Determine interface type. The local port always has type
+ * "internal". Other ports take their type from the database and
+ * default to "system" if none is specified. */
+ iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
+ : cfg->type[0] ? cfg->type
+ : "system");
}
+ shash_destroy(&new_ifaces);
}
static void
-compose_mirror_dsts(const struct bridge *br, const struct flow *flow,
- uint16_t vlan, const struct port *in_port,
- struct dst_set *set, tag_type *tags)
+port_destroy(struct port *port)
{
- mirror_mask_t mirrors;
- int flow_vlan;
- size_t i;
-
- mirrors = in_port->src_mirrors;
- for (i = 0; i < set->n; i++) {
- mirrors |= set->dsts[i].iface->port->dst_mirrors;
- }
+ if (port) {
+ struct bridge *br = port->bridge;
+ struct iface *iface, *next;
- if (!mirrors) {
- return;
- }
+ if (br->ofproto) {
+ ofproto_bundle_unregister(br->ofproto, port);
+ }
- flow_vlan = vlan_tci_to_vid(flow->vlan_tci);
- if (flow_vlan == 0) {
- flow_vlan = OFP_VLAN_NONE;
- }
+ LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
+ iface_destroy(iface);
+ }
- while (mirrors) {
- struct mirror *m = br->mirrors[mirror_mask_ffs(mirrors) - 1];
- if (!m->n_vlans || vlan_is_mirrored(m, vlan)) {
- struct dst dst;
+ hmap_remove(&br->ports, &port->hmap_node);
- if (m->out_port) {
- if (set_dst(&dst, flow, in_port, m->out_port, tags)
- && !dst_is_duplicate(set, &dst)) {
- dst_set_add(set, &dst);
- }
- } else {
- struct port *port;
+ VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
- HMAP_FOR_EACH (port, hmap_node, &br->ports) {
- if (port_includes_vlan(port, m->out_vlan)
- && set_dst(&dst, flow, in_port, port, tags))
- {
- if (port->vlan < 0) {
- dst.vlan = m->out_vlan;
- }
- if (dst_is_duplicate(set, &dst)) {
- continue;
- }
-
- /* Use the vlan tag on the original flow instead of
- * the one passed in the vlan parameter. This ensures
- * that we compare the vlan from before any implicit
- * tagging tags place. This is necessary because
- * dst->vlan is the final vlan, after removing implicit
- * tags. */
- if (port == in_port && dst.vlan == flow_vlan) {
- /* Don't send out input port on same VLAN. */
- continue;
- }
- dst_set_add(set, &dst);
- }
- }
- }
- }
- mirrors &= mirrors - 1;
+ free(port->name);
+ free(port);
}
}
-static void
-compose_actions(struct bridge *br, const struct flow *flow, uint16_t vlan,
- const struct port *in_port, const struct port *out_port,
- tag_type *tags, struct ofpbuf *actions,
- uint16_t *nf_output_iface)
-{
- uint16_t initial_vlan, cur_vlan;
- const struct dst *dst;
- struct dst_set set;
-
- dst_set_init(&set);
- compose_dsts(br, flow, vlan, in_port, out_port, &set, tags,
- nf_output_iface);
- compose_mirror_dsts(br, flow, vlan, in_port, &set, tags);
-
- /* Output all the packets we can without having to change the VLAN. */
- initial_vlan = vlan_tci_to_vid(flow->vlan_tci);
- if (initial_vlan == 0) {
- initial_vlan = OFP_VLAN_NONE;
- }
- for (dst = set.dsts; dst < &set.dsts[set.n]; dst++) {
- if (dst->vlan != initial_vlan) {
- continue;
- }
- nl_msg_put_u32(actions, ODP_ACTION_ATTR_OUTPUT, dst->iface->dp_ifidx);
- }
-
- /* Then output the rest. */
- cur_vlan = initial_vlan;
- for (dst = set.dsts; dst < &set.dsts[set.n]; dst++) {
- if (dst->vlan == initial_vlan) {
- continue;
- }
- if (dst->vlan != cur_vlan) {
- if (dst->vlan == OFP_VLAN_NONE) {
- nl_msg_put_flag(actions, ODP_ACTION_ATTR_STRIP_VLAN);
- } else {
- ovs_be16 tci;
- tci = htons(dst->vlan & VLAN_VID_MASK);
- tci |= flow->vlan_tci & htons(VLAN_PCP_MASK);
- nl_msg_put_be16(actions, ODP_ACTION_ATTR_SET_DL_TCI, tci);
- }
- cur_vlan = dst->vlan;
- }
- nl_msg_put_u32(actions, ODP_ACTION_ATTR_OUTPUT, dst->iface->dp_ifidx);
- }
-
- dst_set_free(&set);
-}
-
-/* Returns the effective vlan of a packet, taking into account both the
- * 802.1Q header and implicitly tagged ports. A value of 0 indicates that
- * the packet is untagged and -1 indicates it has an invalid header and
- * should be dropped. */
-static int flow_get_vlan(struct bridge *br, const struct flow *flow,
- struct port *in_port, bool have_packet)
-{
- int vlan = vlan_tci_to_vid(flow->vlan_tci);
- if (in_port->vlan >= 0) {
- if (vlan) {
- if (have_packet) {
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
- VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %d tagged "
- "packet received on port %s configured with "
- "implicit VLAN %"PRIu16,
- br->name, vlan, in_port->name, in_port->vlan);
- }
- return -1;
- }
- vlan = in_port->vlan;
- } else {
- if (!port_includes_vlan(in_port, vlan)) {
- if (have_packet) {
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
- VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %d tagged "
- "packet received on port %s not configured for "
- "trunking VLAN %d",
- br->name, vlan, in_port->name, vlan);
- }
- return -1;
- }
- }
-
- return vlan;
-}
-
-/* A VM broadcasts a gratuitous ARP to indicate that it has resumed after
- * migration. Older Citrix-patched Linux DomU used gratuitous ARP replies to
- * indicate this; newer upstream kernels use gratuitous ARP requests. */
-static bool
-is_gratuitous_arp(const struct flow *flow)
-{
- return (flow->dl_type == htons(ETH_TYPE_ARP)
- && eth_addr_is_broadcast(flow->dl_dst)
- && (flow->nw_proto == ARP_OP_REPLY
- || (flow->nw_proto == ARP_OP_REQUEST
- && flow->nw_src == flow->nw_dst)));
-}
-
-static void
-update_learning_table(struct bridge *br, const struct flow *flow, int vlan,
- struct port *in_port)
-{
- struct mac_entry *mac;
-
- if (!mac_learning_may_learn(br->ml, flow->dl_src, vlan)) {
- return;
- }
-
- mac = mac_learning_insert(br->ml, flow->dl_src, vlan);
- if (is_gratuitous_arp(flow)) {
- /* We don't want to learn from gratuitous ARP packets that are
- * reflected back over bond slaves so we lock the learning table. */
- if (!in_port->bond) {
- mac_entry_set_grat_arp_lock(mac);
- } else if (mac_entry_is_grat_arp_locked(mac)) {
- return;
- }
- }
-
- if (mac_entry_is_new(mac) || mac->port.p != in_port) {
- /* The log messages here could actually be useful in debugging,
- * so keep the rate limit relatively high. */
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(30, 300);
- VLOG_DBG_RL(&rl, "bridge %s: learned that "ETH_ADDR_FMT" is "
- "on port %s in VLAN %d",
- br->name, ETH_ADDR_ARGS(flow->dl_src),
- in_port->name, vlan);
-
- mac->port.p = in_port;
- ofproto_revalidate(br->ofproto, mac_learning_changed(br->ml, mac));
- }
-}
-
-/* Determines whether packets in 'flow' within 'br' should be forwarded or
- * dropped. Returns true if they may be forwarded, false if they should be
- * dropped.
- *
- * If 'have_packet' is true, it indicates that the caller is processing a
- * received packet. If 'have_packet' is false, then the caller is just
- * revalidating an existing flow because configuration has changed. Either
- * way, 'have_packet' only affects logging (there is no point in logging errors
- * during revalidation).
- *
- * Sets '*in_portp' to the input port. This will be a null pointer if
- * flow->in_port does not designate a known input port (in which case
- * is_admissible() returns false).
- *
- * When returning true, sets '*vlanp' to the effective VLAN of the input
- * packet, as returned by flow_get_vlan().
- *
- * May also add tags to '*tags', although the current implementation only does
- * so in one special case.
- */
-static bool
-is_admissible(struct bridge *br, const struct flow *flow, bool have_packet,
- tag_type *tags, int *vlanp, struct port **in_portp)
-{
- struct iface *in_iface;
- struct port *in_port;
- int vlan;
-
- /* Find the interface and port structure for the received packet. */
- in_iface = iface_from_dp_ifidx(br, flow->in_port);
- if (!in_iface) {
- /* No interface? Something fishy... */
- if (have_packet) {
- /* Odd. A few possible reasons here:
- *
- * - We deleted an interface but there are still a few packets
- * queued up from it.
- *
- * - Someone externally added an interface (e.g. with "ovs-dpctl
- * add-if") that we don't know about.
- *
- * - Packet arrived on the local port but the local port is not
- * one of our bridge ports.
- */
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
-
- VLOG_WARN_RL(&rl, "bridge %s: received packet on unknown "
- "interface %"PRIu16, br->name, flow->in_port);
- }
-
- *in_portp = NULL;
- return false;
- }
- *in_portp = in_port = in_iface->port;
- *vlanp = vlan = flow_get_vlan(br, flow, in_port, have_packet);
- if (vlan < 0) {
- return false;
- }
-
- /* Drop frames for reserved multicast addresses. */
- if (eth_addr_is_reserved(flow->dl_dst)) {
- return false;
- }
-
- /* Drop frames on ports reserved for mirroring. */
- if (in_port->is_mirror_output_port) {
- if (have_packet) {
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
- VLOG_WARN_RL(&rl, "bridge %s: dropping packet received on port "
- "%s, which is reserved exclusively for mirroring",
- br->name, in_port->name);
- }
- return false;
- }
-
- if (in_port->bond) {
- struct mac_entry *mac;
-
- switch (bond_check_admissibility(in_port->bond, in_iface,
- flow->dl_dst, tags)) {
- case BV_ACCEPT:
- break;
-
- case BV_DROP:
- return false;
-
- case BV_DROP_IF_MOVED:
- mac = mac_learning_lookup(br->ml, flow->dl_src, vlan, NULL);
- if (mac && mac->port.p != in_port &&
- (!is_gratuitous_arp(flow)
- || mac_entry_is_grat_arp_locked(mac))) {
- return false;
- }
- break;
- }
- }
-
- return true;
-}
-
-/* If the composed actions may be applied to any packet in the given 'flow',
- * returns true. Otherwise, the actions should only be applied to 'packet', or
- * not at all, if 'packet' was NULL. */
-static bool
-process_flow(struct bridge *br, const struct flow *flow,
- const struct ofpbuf *packet, struct ofpbuf *actions,
- tag_type *tags, uint16_t *nf_output_iface)
-{
- struct port *in_port;
- struct port *out_port;
- struct mac_entry *mac;
- int vlan;
-
- /* Check whether we should drop packets in this flow. */
- if (!is_admissible(br, flow, packet != NULL, tags, &vlan, &in_port)) {
- out_port = NULL;
- goto done;
- }
-
- /* Learn source MAC (but don't try to learn from revalidation). */
- if (packet) {
- update_learning_table(br, flow, vlan, in_port);
- }
-
- /* Determine output port. */
- mac = mac_learning_lookup(br->ml, flow->dl_dst, vlan, tags);
- if (mac) {
- out_port = mac->port.p;
- } else if (!packet && !eth_addr_is_multicast(flow->dl_dst)) {
- /* If we are revalidating but don't have a learning entry then
- * eject the flow. Installing a flow that floods packets opens
- * up a window of time where we could learn from a packet reflected
- * on a bond and blackhole packets before the learning table is
- * updated to reflect the correct port. */
- return false;
- } else {
- out_port = FLOOD_PORT;
- }
-
- /* Don't send packets out their input ports. */
- if (in_port == out_port) {
- out_port = NULL;
- }
-
-done:
- if (in_port) {
- compose_actions(br, flow, vlan, in_port, out_port, tags, actions,
- nf_output_iface);
- }
-
- return true;
-}
-
-static bool
-bridge_normal_ofhook_cb(const struct flow *flow, const struct ofpbuf *packet,
- struct ofpbuf *actions, tag_type *tags,
- uint16_t *nf_output_iface, void *br_)
-{
- struct bridge *br = br_;
-
- COVERAGE_INC(bridge_process_flow);
- return process_flow(br, flow, packet, actions, tags, nf_output_iface);
-}
-
-static bool
-bridge_special_ofhook_cb(const struct flow *flow,
- const struct ofpbuf *packet, void *br_)
-{
- struct iface *iface;
- struct bridge *br = br_;
-
- iface = iface_from_dp_ifidx(br, flow->in_port);
-
- if (flow->dl_type == htons(ETH_TYPE_LACP)) {
- if (iface && iface->port->lacp && packet) {
- const struct lacp_pdu *pdu = parse_lacp_packet(packet);
- if (pdu) {
- lacp_process_pdu(iface->port->lacp, iface, pdu);
- }
- }
- return false;
- }
-
- return true;
-}
-
-static void
-bridge_account_flow_ofhook_cb(const struct flow *flow, tag_type tags,
- const struct nlattr *actions,
- size_t actions_len,
- uint64_t n_bytes, void *br_)
-{
- struct bridge *br = br_;
- const struct nlattr *a;
- struct port *in_port;
- tag_type dummy = 0;
- unsigned int left;
- int vlan;
-
- /* Feed information from the active flows back into the learning table to
- * ensure that table is always in sync with what is actually flowing
- * through the datapath.
- *
- * We test that 'tags' is nonzero to ensure that only flows that include an
- * OFPP_NORMAL action are used for learning. This works because
- * bridge_normal_ofhook_cb() always sets a nonzero tag value. */
- if (tags && is_admissible(br, flow, false, &dummy, &vlan, &in_port)) {
- update_learning_table(br, flow, vlan, in_port);
- }
-
- /* Account for bond slave utilization. */
- if (!br->has_bonded_ports) {
- return;
- }
- NL_ATTR_FOR_EACH_UNSAFE (a, left, actions, actions_len) {
- if (nl_attr_type(a) == ODP_ACTION_ATTR_OUTPUT) {
- struct port *out_port = port_from_dp_ifidx(br, nl_attr_get_u32(a));
- if (out_port && out_port->bond) {
- uint16_t vlan = (flow->vlan_tci
- ? vlan_tci_to_vid(flow->vlan_tci)
- : OFP_VLAN_NONE);
- bond_account(out_port->bond, flow, vlan, n_bytes);
- }
- }
- }
-}
-
-static void
-bridge_account_checkpoint_ofhook_cb(void *br_)
-{
- struct bridge *br = br_;
- struct port *port;
-
- HMAP_FOR_EACH (port, hmap_node, &br->ports) {
- if (port->bond) {
- bond_rebalance(port->bond,
- ofproto_get_revalidate_set(br->ofproto));
- }
- }
-}
-
-static uint16_t
-bridge_autopath_ofhook_cb(const struct flow *flow, uint32_t ofp_port,
- tag_type *tags, void *br_)
-{
- struct bridge *br = br_;
- uint16_t odp_port = ofp_port_to_odp_port(ofp_port);
- struct port *port = port_from_dp_ifidx(br, odp_port);
- uint16_t ret;
-
- if (!port) {
- ret = ODPP_NONE;
- } else if (list_is_short(&port->ifaces)) {
- ret = odp_port;
- } else {
- struct iface *iface;
-
- /* Autopath does not support VLAN hashing. */
- iface = bond_choose_output_slave(port->bond, flow,
- OFP_VLAN_NONE, tags);
- ret = iface ? iface->dp_ifidx : ODPP_NONE;
- }
-
- return odp_port_to_ofp_port(ret);
-}
-
-static struct ofhooks bridge_ofhooks = {
- bridge_normal_ofhook_cb,
- bridge_special_ofhook_cb,
- bridge_account_flow_ofhook_cb,
- bridge_account_checkpoint_ofhook_cb,
- bridge_autopath_ofhook_cb,
-};
-\f
-/* Port functions. */
-
-static void
-lacp_send_pdu_cb(void *iface_, const struct lacp_pdu *pdu)
-{
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
- struct iface *iface = iface_;
- uint8_t ea[ETH_ADDR_LEN];
- int error;
-
- error = netdev_get_etheraddr(iface->netdev, ea);
- if (!error) {
- struct lacp_pdu *packet_pdu;
- struct ofpbuf packet;
-
- ofpbuf_init(&packet, 0);
- packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP,
- sizeof *packet_pdu);
- *packet_pdu = *pdu;
- error = netdev_send(iface->netdev, &packet);
- if (error) {
- VLOG_WARN_RL(&rl, "port %s: sending LACP PDU on iface %s failed "
- "(%s)", iface->port->name, iface->name,
- strerror(error));
- }
- ofpbuf_uninit(&packet);
- } else {
- VLOG_ERR_RL(&rl, "port %s: cannot obtain Ethernet address of iface "
- "%s (%s)", iface->port->name, iface->name,
- strerror(error));
- }
-}
-
-static void
-port_run(struct port *port)
-{
- if (port->lacp) {
- lacp_run(port->lacp, lacp_send_pdu_cb);
- }
-
- if (port->bond) {
- struct iface *iface;
-
- LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
- bool may_enable = lacp_slave_may_enable(port->lacp, iface);
- bond_slave_set_lacp_may_enable(port->bond, iface, may_enable);
- }
-
- bond_run(port->bond,
- ofproto_get_revalidate_set(port->bridge->ofproto),
- lacp_negotiated(port->lacp));
- if (bond_should_send_learning_packets(port->bond)) {
- port_send_learning_packets(port);
- }
- }
-}
-
-static void
-port_wait(struct port *port)
-{
- if (port->lacp) {
- lacp_wait(port->lacp);
- }
-
- if (port->bond) {
- bond_wait(port->bond);
- }
-}
-
-static struct port *
-port_create(struct bridge *br, const struct ovsrec_port *cfg)
-{
- struct port *port;
-
- port = xzalloc(sizeof *port);
- port->bridge = br;
- port->name = xstrdup(cfg->name);
- port->cfg = cfg;
- list_init(&port->ifaces);
-
- hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
-
- VLOG_INFO("created port %s on bridge %s", port->name, br->name);
-
- return port;
-}
-
-static const char *
-get_port_other_config(const struct ovsrec_port *port, const char *key,
- const char *default_value)
-{
- const char *value;
-
- value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
- key);
- return value ? value : default_value;
-}
-
-static const char *
-get_interface_other_config(const struct ovsrec_interface *iface,
- const char *key, const char *default_value)
-{
- const char *value;
-
- value = get_ovsrec_key_value(&iface->header_,
- &ovsrec_interface_col_other_config, key);
- return value ? value : default_value;
-}
-
-/* Deletes interfaces from 'port' that are no longer configured for it. */
-static void
-port_del_ifaces(struct port *port)
-{
- struct iface *iface, *next;
- struct sset new_ifaces;
- size_t i;
-
- /* Collect list of new interfaces. */
- sset_init(&new_ifaces);
- for (i = 0; i < port->cfg->n_interfaces; i++) {
- const char *name = port->cfg->interfaces[i]->name;
- sset_add(&new_ifaces, name);
- }
-
- /* Get rid of deleted interfaces. */
- LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
- if (!sset_contains(&new_ifaces, iface->name)) {
- iface_destroy(iface);
- }
- }
-
- sset_destroy(&new_ifaces);
-}
-
-/* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
- * existing ones. */
-static void
-port_add_ifaces(struct port *port)
-{
- struct shash new_ifaces;
- struct shash_node *node;
- size_t i;
-
- /* Collect new ifaces. */
- shash_init(&new_ifaces);
- for (i = 0; i < port->cfg->n_interfaces; i++) {
- const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
- if (!shash_add_once(&new_ifaces, cfg->name, cfg)) {
- VLOG_WARN("port %s: %s specified twice as port interface",
- port->name, cfg->name);
- iface_set_ofport(cfg, -1);
- }
- }
-
- /* Create new interfaces.
- * Update interface types and 'cfg' members. */
- SHASH_FOR_EACH (node, &new_ifaces) {
- const struct ovsrec_interface *cfg = node->data;
- const char *iface_name = node->name;
- struct iface *iface;
-
- iface = iface_lookup(port->bridge, iface_name);
- if (!iface) {
- iface = iface_create(port, cfg);
- } else {
- iface->cfg = cfg;
- }
-
- /* Determine interface type. The local port always has type
- * "internal". Other ports take their type from the database and
- * default to "system" if none is specified. */
- iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
- : cfg->type[0] ? cfg->type
- : "system");
- }
- shash_destroy(&new_ifaces);
-}
-
-/* Expires all MAC learning entries associated with 'port' and forces ofproto
- * to revalidate every flow. */
-static void
-port_flush_macs(struct port *port)
-{
- struct bridge *br = port->bridge;
- struct mac_learning *ml = br->ml;
- struct mac_entry *mac, *next_mac;
-
- bridge_flush(br);
- LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) {
- if (mac->port.p == port) {
- mac_learning_expire(ml, mac);
- }
- }
-}
-
-static void
-port_reconfigure(struct port *port)
-{
- const struct ovsrec_port *cfg = port->cfg;
- bool need_flush = false;
- unsigned long *trunks;
- int vlan;
-
- /* Get VLAN tag. */
- vlan = -1;
- if (cfg->tag) {
- if (list_is_short(&port->ifaces)) {
- vlan = *cfg->tag;
- if (vlan >= 0 && vlan <= 4095) {
- VLOG_DBG("port %s: assigning VLAN tag %d", port->name, vlan);
- } else {
- vlan = -1;
- }
- } else {
- /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
- * they even work as-is. But they have not been tested. */
- VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
- port->name);
- }
- }
- if (port->vlan != vlan) {
- port->vlan = vlan;
- need_flush = true;
- }
-
- /* Get trunked VLANs. */
- trunks = NULL;
- if (vlan < 0 && cfg->n_trunks) {
- trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
- if (!trunks) {
- VLOG_ERR("port %s: no valid trunks, trunking all VLANs",
- port->name);
- }
- } else if (vlan >= 0 && cfg->n_trunks) {
- VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
- port->name);
- }
- if (!vlan_bitmap_equal(trunks, port->trunks)) {
- need_flush = true;
- }
- bitmap_free(port->trunks);
- port->trunks = trunks;
-
- if (need_flush) {
- port_flush_macs(port);
- }
-}
-
-static void
-port_destroy(struct port *port)
-{
- if (port) {
- struct bridge *br = port->bridge;
- struct iface *iface, *next;
- int i;
-
- for (i = 0; i < MAX_MIRRORS; i++) {
- struct mirror *m = br->mirrors[i];
- if (m && m->out_port == port) {
- mirror_destroy(m);
- }
- }
-
- LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
- iface_destroy(iface);
- }
-
- hmap_remove(&br->ports, &port->hmap_node);
-
- VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
-
- bond_destroy(port->bond);
- lacp_destroy(port->lacp);
- port_flush_macs(port);
-
- bitmap_free(port->trunks);
- free(port->name);
- free(port);
- }
-}
-
-static struct port *
-port_from_dp_ifidx(const struct bridge *br, uint16_t dp_ifidx)
-{
- struct iface *iface = iface_from_dp_ifidx(br, dp_ifidx);
- return iface ? iface->port : NULL;
-}
-
-static struct port *
-port_lookup(const struct bridge *br, const char *name)
-{
- struct port *port;
-
- HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
- &br->ports) {
- if (!strcmp(port->name, name)) {
- return port;
+static struct port *
+port_lookup(const struct bridge *br, const char *name)
+{
+ struct port *port;
+
+ HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
+ &br->ports) {
+ if (!strcmp(port->name, name)) {
+ return port;
}
}
return NULL;
}
}
-static void
-iface_reconfigure_lacp(struct iface *iface)
-{
- struct lacp_slave_settings s;
- int priority, portid;
-
- portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
- priority = atoi(get_interface_other_config(iface->cfg,
- "lacp-port-priority", "0"));
-
- if (portid <= 0 || portid > UINT16_MAX) {
- portid = iface->dp_ifidx;
- }
-
- if (priority <= 0 || priority > UINT16_MAX) {
- priority = UINT16_MAX;
- }
-
- s.name = iface->name;
- s.id = portid;
- s.priority = priority;
- lacp_slave_register(iface->port->lacp, iface, &s);
-}
-
-static void
-port_reconfigure_lacp(struct port *port)
+static struct lacp_settings *
+port_configure_lacp(struct port *port, struct lacp_settings *s)
{
- static struct lacp_settings s;
- struct iface *iface;
- uint8_t sysid[ETH_ADDR_LEN];
- const char *sysid_str;
const char *lacp_time;
long long int custom_time;
int priority;
- if (!enable_lacp(port, &s.active)) {
- lacp_destroy(port->lacp);
- port->lacp = NULL;
- return;
- }
-
- sysid_str = get_port_other_config(port->cfg, "lacp-system-id", NULL);
- if (sysid_str && eth_addr_from_string(sysid_str, sysid)) {
- memcpy(s.id, sysid, ETH_ADDR_LEN);
- } else {
- memcpy(s.id, port->bridge->ea, ETH_ADDR_LEN);
+ if (!enable_lacp(port, &s->active)) {
+ return NULL;
}
- s.name = port->name;
+ s->name = port->name;
+ memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
/* Prefer bondable links if unspecified. */
priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
"0"));
- s.priority = (priority > 0 && priority <= UINT16_MAX
- ? priority
- : UINT16_MAX - !list_is_short(&port->ifaces));
+ s->priority = (priority > 0 && priority <= UINT16_MAX
+ ? priority
+ : UINT16_MAX - !list_is_short(&port->ifaces));
- s.strict = !strcmp(get_port_other_config(port->cfg, "lacp-strict",
- "false"),
- "true");
+ s->strict = !strcmp(get_port_other_config(port->cfg, "lacp-strict",
+ "false"),
+ "true");
lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
custom_time = atoi(lacp_time);
if (!strcmp(lacp_time, "fast")) {
- s.lacp_time = LACP_TIME_FAST;
+ s->lacp_time = LACP_TIME_FAST;
} else if (!strcmp(lacp_time, "slow")) {
- s.lacp_time = LACP_TIME_SLOW;
+ s->lacp_time = LACP_TIME_SLOW;
} else if (custom_time > 0) {
- s.lacp_time = LACP_TIME_CUSTOM;
- s.custom_time = custom_time;
+ s->lacp_time = LACP_TIME_CUSTOM;
+ s->custom_time = custom_time;
} else {
- s.lacp_time = LACP_TIME_SLOW;
+ s->lacp_time = LACP_TIME_SLOW;
}
- if (!port->lacp) {
- port->lacp = lacp_create();
- }
+ return s;
+}
- lacp_configure(port->lacp, &s);
+static void
+iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
+{
+ int priority, portid;
- LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
- iface_reconfigure_lacp(iface);
+ portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
+ priority = atoi(get_interface_other_config(iface->cfg,
+ "lacp-port-priority", "0"));
+
+ if (portid <= 0 || portid > UINT16_MAX) {
+ portid = iface->dp_ifidx;
}
+
+ if (priority <= 0 || priority > UINT16_MAX) {
+ priority = UINT16_MAX;
+ }
+
+ s->name = iface->name;
+ s->id = iface->dp_ifidx;
+ s->id = portid;
+ s->priority = priority;
}
static void
-port_reconfigure_bond(struct port *port)
+port_configure_bond(struct port *port, struct bond_settings *s)
{
- struct bond_settings s;
const char *detect_s;
- struct iface *iface;
- if (list_is_short(&port->ifaces)) {
- /* Not a bonded port. */
- bond_destroy(port->bond);
- port->bond = NULL;
- return;
- }
-
- port->bridge->has_bonded_ports = true;
-
- s.name = port->name;
- s.balance = BM_SLB;
+ s->name = port->name;
+ s->balance = BM_SLB;
if (port->cfg->bond_mode
- && !bond_mode_from_string(&s.balance, port->cfg->bond_mode)) {
+ && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
port->name, port->cfg->bond_mode,
- bond_mode_to_string(s.balance));
+ bond_mode_to_string(s->balance));
}
- s.detect = BLSM_CARRIER;
+ s->detect = BLSM_CARRIER;
detect_s = get_port_other_config(port->cfg, "bond-detect-mode", NULL);
- if (detect_s && !bond_detect_mode_from_string(&s.detect, detect_s)) {
+ if (detect_s && !bond_detect_mode_from_string(&s->detect, detect_s)) {
VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
"defaulting to %s",
- port->name, detect_s, bond_detect_mode_to_string(s.detect));
+ port->name, detect_s, bond_detect_mode_to_string(s->detect));
}
- s.miimon_interval = atoi(
+ s->miimon_interval = atoi(
get_port_other_config(port->cfg, "bond-miimon-interval", "200"));
- if (s.miimon_interval < 100) {
- s.miimon_interval = 100;
+ if (s->miimon_interval < 100) {
+ s->miimon_interval = 100;
}
- s.up_delay = MAX(0, port->cfg->bond_updelay);
- s.down_delay = MAX(0, port->cfg->bond_downdelay);
- s.rebalance_interval = atoi(
+ s->up_delay = MAX(0, port->cfg->bond_updelay);
+ s->down_delay = MAX(0, port->cfg->bond_downdelay);
+ s->rebalance_interval = atoi(
get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
- if (s.rebalance_interval < 1000) {
- s.rebalance_interval = 1000;
- }
-
- s.fake_iface = port->cfg->bond_fake_iface;
-
- if (!port->bond) {
- port->bond = bond_create(&s);
- } else {
- if (bond_reconfigure(port->bond, &s)) {
- bridge_flush(port->bridge);
- }
+ if (s->rebalance_interval < 1000) {
+ s->rebalance_interval = 1000;
}
- LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
- uint16_t stable_id = (port->lacp
- ? lacp_slave_get_port_id(port->lacp, iface)
- : iface->dp_ifidx);
- bond_slave_register(iface->port->bond, iface, stable_id,
- iface->netdev);
- }
-}
-
-static void
-port_send_learning_packets(struct port *port)
-{
- struct bridge *br = port->bridge;
- int error, n_packets, n_errors;
- struct mac_entry *e;
-
- error = n_packets = n_errors = 0;
- LIST_FOR_EACH (e, lru_node, &br->ml->lrus) {
- if (e->port.p != port) {
- int ret = bond_send_learning_packet(port->bond, e->mac, e->vlan);
- if (ret) {
- error = ret;
- n_errors++;
- }
- n_packets++;
- }
- }
-
- if (n_errors) {
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
- VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning "
- "packets, last error was: %s",
- port->name, n_errors, n_packets, strerror(error));
- } else {
- VLOG_DBG("bond %s: sent %d gratuitous learning packets",
- port->name, n_packets);
- }
+ s->fake_iface = port->cfg->bond_fake_iface;
}
\f
/* Interface functions. */
VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
- bridge_flush(br);
-
return iface;
}
struct port *port = iface->port;
struct bridge *br = port->bridge;
- if (port->bond) {
- bond_slave_unregister(port->bond, iface);
- }
-
- if (port->lacp) {
- lacp_slave_unregister(port->lacp, iface);
+ if (br->ofproto && iface->dp_ifidx >= 0) {
+ ofproto_port_unregister(br->ofproto, iface->dp_ifidx);
}
if (iface->dp_ifidx >= 0) {
free(iface->name);
free(iface);
-
- bridge_flush(port->bridge);
}
}
shash_destroy(&details);
}
}
+
+ netdev_set_policing(iface->netdev,
+ iface->cfg->ingress_policing_rate,
+ iface->cfg->ingress_policing_burst);
}
static void
static struct mirror *
mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
{
- int i;
+ struct mirror *m;
- for (i = 0; i < MAX_MIRRORS; i++) {
- struct mirror *m = br->mirrors[i];
- if (m && uuid_equals(uuid, &m->uuid)) {
+ HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
+ if (uuid_equals(uuid, &m->uuid)) {
return m;
}
}
}
static void
-mirror_reconfigure(struct bridge *br)
+bridge_configure_mirrors(struct bridge *br)
{
- unsigned long *rspan_vlans;
- struct port *port;
- int i;
+ const struct ovsdb_datum *mc;
+ unsigned long *flood_vlans;
+ struct mirror *m, *next;
+ size_t i;
/* Get rid of deleted mirrors. */
- for (i = 0; i < MAX_MIRRORS; i++) {
- struct mirror *m = br->mirrors[i];
- if (m) {
- const struct ovsdb_datum *mc;
- union ovsdb_atom atom;
-
- mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
- atom.uuid = br->mirrors[i]->uuid;
- if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
- mirror_destroy(m);
- }
+ mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
+ HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
+ union ovsdb_atom atom;
+
+ atom.uuid = m->uuid;
+ if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
+ mirror_destroy(m);
}
}
/* Add new mirrors and reconfigure existing ones. */
for (i = 0; i < br->cfg->n_mirrors; i++) {
- struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
+ const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
- if (m) {
- mirror_reconfigure_one(m, cfg);
- } else {
- mirror_create(br, cfg);
+ if (!m) {
+ m = mirror_create(br, cfg);
}
- }
-
- /* Update port reserved status. */
- HMAP_FOR_EACH (port, hmap_node, &br->ports) {
- port->is_mirror_output_port = false;
- }
- for (i = 0; i < MAX_MIRRORS; i++) {
- struct mirror *m = br->mirrors[i];
- if (m && m->out_port) {
- m->out_port->is_mirror_output_port = true;
+ if (!mirror_configure(m, cfg)) {
+ mirror_destroy(m);
}
}
/* Update flooded vlans (for RSPAN). */
- rspan_vlans = NULL;
- if (br->cfg->n_flood_vlans) {
- rspan_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
- br->cfg->n_flood_vlans);
- }
- if (mac_learning_set_flood_vlans(br->ml, rspan_vlans)) {
- bridge_flush(br);
- mac_learning_flush(br->ml);
- }
- free(rspan_vlans);
+ flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
+ br->cfg->n_flood_vlans);
+ ofproto_set_flood_vlans(br->ofproto, flood_vlans);
+ bitmap_free(flood_vlans);
}
-static void
-mirror_create(struct bridge *br, struct ovsrec_mirror *cfg)
+static struct mirror *
+mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
{
struct mirror *m;
- size_t i;
- for (i = 0; ; i++) {
- if (i >= MAX_MIRRORS) {
- VLOG_WARN("bridge %s: maximum of %d port mirrors reached, "
- "cannot create %s", br->name, MAX_MIRRORS, cfg->name);
- return;
- }
- if (!br->mirrors[i]) {
- break;
- }
- }
-
- VLOG_INFO("created port mirror %s on bridge %s", cfg->name, br->name);
- bridge_flush(br);
- mac_learning_flush(br->ml);
-
- br->mirrors[i] = m = xzalloc(sizeof *m);
+ m = xzalloc(sizeof *m);
m->uuid = cfg->header_.uuid;
+ hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
m->bridge = br;
- m->idx = i;
m->name = xstrdup(cfg->name);
- sset_init(&m->src_ports);
- sset_init(&m->dst_ports);
- m->vlans = NULL;
- m->n_vlans = 0;
- m->out_vlan = -1;
- m->out_port = NULL;
- mirror_reconfigure_one(m, cfg);
+ return m;
}
static void
{
if (m) {
struct bridge *br = m->bridge;
- struct port *port;
- HMAP_FOR_EACH (port, hmap_node, &br->ports) {
- port->src_mirrors &= ~(MIRROR_MASK_C(1) << m->idx);
- port->dst_mirrors &= ~(MIRROR_MASK_C(1) << m->idx);
+ if (br->ofproto) {
+ ofproto_mirror_unregister(br->ofproto, m);
}
- sset_destroy(&m->src_ports);
- sset_destroy(&m->dst_ports);
- free(m->vlans);
-
- m->bridge->mirrors[m->idx] = NULL;
+ hmap_remove(&br->mirrors, &m->hmap_node);
free(m->name);
free(m);
-
- bridge_flush(br);
- mac_learning_flush(br->ml);
}
}
static void
-mirror_collect_ports(struct mirror *m, struct ovsrec_port **ports, int n_ports,
- struct sset *names)
+mirror_collect_ports(struct mirror *m,
+ struct ovsrec_port **in_ports, int n_in_ports,
+ void ***out_portsp, size_t *n_out_portsp)
{
+ void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
+ size_t n_out_ports = 0;
size_t i;
- for (i = 0; i < n_ports; i++) {
- const char *name = ports[i]->name;
- if (port_lookup(m->bridge, name)) {
- sset_add(names, name);
+ for (i = 0; i < n_in_ports; i++) {
+ const char *name = in_ports[i]->name;
+ struct port *port = port_lookup(m->bridge, name);
+ if (port) {
+ out_ports[n_out_ports++] = port;
} else {
VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
"port %s", m->bridge->name, m->name, name);
}
}
-}
-
-static size_t
-mirror_collect_vlans(struct mirror *m, const struct ovsrec_mirror *cfg,
- int **vlans)
-{
- size_t n_vlans;
- size_t i;
-
- *vlans = xmalloc(sizeof **vlans * cfg->n_select_vlan);
- n_vlans = 0;
- for (i = 0; i < cfg->n_select_vlan; i++) {
- int64_t vlan = cfg->select_vlan[i];
- if (vlan < 0 || vlan > 4095) {
- VLOG_WARN("bridge %s: mirror %s selects invalid VLAN %"PRId64,
- m->bridge->name, m->name, vlan);
- } else {
- (*vlans)[n_vlans++] = vlan;
- }
- }
- return n_vlans;
+ *out_portsp = out_ports;
+ *n_out_portsp = n_out_ports;
}
static bool
-vlan_is_mirrored(const struct mirror *m, int vlan)
-{
- size_t i;
-
- for (i = 0; i < m->n_vlans; i++) {
- if (m->vlans[i] == vlan) {
- return true;
- }
- }
- return false;
-}
-
-static void
-mirror_reconfigure_one(struct mirror *m, struct ovsrec_mirror *cfg)
+mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
{
- struct sset src_ports, dst_ports;
- mirror_mask_t mirror_bit;
+ struct ofproto_mirror_settings s;
struct port *out_port;
struct port *port;
- int out_vlan;
- size_t n_vlans;
- int *vlans;
/* Set name. */
if (strcmp(cfg->name, m->name)) {
free(m->name);
m->name = xstrdup(cfg->name);
}
+ s.name = m->name;
- /* Get output port. */
+ /* Get output port or VLAN. */
if (cfg->output_port) {
- out_port = port_lookup(m->bridge, cfg->output_port->name);
+ s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
if (!out_port) {
VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
m->bridge->name, m->name);
- mirror_destroy(m);
- return;
+ return false;
}
- out_vlan = -1;
+ s.out_vlan = UINT16_MAX;
if (cfg->output_vlan) {
VLOG_ERR("bridge %s: mirror %s specifies both output port and "
m->bridge->name, m->name);
}
} else if (cfg->output_vlan) {
- out_port = NULL;
- out_vlan = *cfg->output_vlan;
+ /* The database should prevent invalid VLAN values. */
+ s.out_bundle = NULL;
+ s.out_vlan = *cfg->output_vlan;
} else {
VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
m->bridge->name, m->name);
- mirror_destroy(m);
- return;
+ return false;
}
- sset_init(&src_ports);
- sset_init(&dst_ports);
+ /* Get port selection. */
if (cfg->select_all) {
+ size_t n_ports = hmap_count(&m->bridge->ports);
+ void **ports = xmalloc(n_ports * sizeof *ports);
+ size_t i;
+
+ i = 0;
HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
- sset_add(&src_ports, port->name);
- sset_add(&dst_ports, port->name);
+ ports[i++] = port;
}
- vlans = NULL;
- n_vlans = 0;
+
+ s.srcs = ports;
+ s.n_srcs = n_ports;
+
+ s.dsts = ports;
+ s.n_dsts = n_ports;
} else {
- /* Get ports, and drop duplicates and ports that don't exist. */
+ /* Get ports, dropping ports that don't exist.
+ * The IDL ensures that there are no duplicates. */
mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
- &src_ports);
+ &s.srcs, &s.n_srcs);
mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
- &dst_ports);
-
- /* Get all the vlans, and drop duplicate and invalid vlans. */
- n_vlans = mirror_collect_vlans(m, cfg, &vlans);
- }
-
- /* Update mirror data. */
- if (!sset_equals(&m->src_ports, &src_ports)
- || !sset_equals(&m->dst_ports, &dst_ports)
- || m->n_vlans != n_vlans
- || memcmp(m->vlans, vlans, sizeof *vlans * n_vlans)
- || m->out_port != out_port
- || m->out_vlan != out_vlan) {
- bridge_flush(m->bridge);
- mac_learning_flush(m->bridge->ml);
- }
- sset_swap(&m->src_ports, &src_ports);
- sset_swap(&m->dst_ports, &dst_ports);
- free(m->vlans);
- m->vlans = vlans;
- m->n_vlans = n_vlans;
- m->out_port = out_port;
- m->out_vlan = out_vlan;
-
- /* Update ports. */
- mirror_bit = MIRROR_MASK_C(1) << m->idx;
- HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
- if (sset_contains(&m->src_ports, port->name)) {
- port->src_mirrors |= mirror_bit;
- } else {
- port->src_mirrors &= ~mirror_bit;
- }
+ &s.dsts, &s.n_dsts);
- if (sset_contains(&m->dst_ports, port->name)) {
- port->dst_mirrors |= mirror_bit;
- } else {
- port->dst_mirrors &= ~mirror_bit;
- }
}
+ /* Get VLAN selection. */
+ s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
+
+ /* Configure. */
+ ofproto_mirror_register(m->bridge->ofproto, m, &s);
+
/* Clean up. */
- sset_destroy(&src_ports);
- sset_destroy(&dst_ports);
+ if (s.srcs != s.dsts) {
+ free(s.dsts);
+ }
+ free(s.srcs);
+ free(s.src_vlans);
+
+ return true;
}
projects / openvswitch / commitdiff