#include "odp-util.h"
#include "ofp-print.h"
#include "ofpbuf.h"
+#include "ofproto/netflow.h"
+#include "ofproto/ofproto.h"
#include "packets.h"
#include "poll-loop.h"
#include "port-array.h"
#include "proc-net-compat.h"
#include "process.h"
-#include "secchan/netflow.h"
-#include "secchan/ofproto.h"
+#include "shash.h"
#include "socket-util.h"
#include "stp.h"
#include "svec.h"
#include "unixctl.h"
#include "vconn.h"
#include "vconn-ssl.h"
+#include "vswitchd/vswitch-idl.h"
#include "xenserver.h"
#include "xtoxll.h"
extern uint64_t mgmt_id;
struct iface {
+ /* These members are always valid. */
struct port *port; /* Containing port. */
size_t port_ifidx; /* Index within containing port. */
-
char *name; /* Host network device name. */
- int dp_ifidx; /* Index within kernel datapath. */
-
- uint8_t mac[ETH_ADDR_LEN]; /* Ethernet address (all zeros if unknowns). */
-
tag_type tag; /* Tag associated with this interface. */
- bool enabled; /* May be chosen for flows? */
long long delay_expires; /* Time after which 'enabled' may change. */
+
+ /* These members are valid only after bridge_reconfigure() causes them to
+ * be initialized.*/
+ int dp_ifidx; /* Index within kernel datapath. */
+ struct netdev *netdev; /* Network device. */
+ bool enabled; /* May be chosen for flows? */
};
#define BOND_MASK 0xff
struct ofproto *ofproto; /* OpenFlow switch. */
/* Kernel datapath information. */
- struct dpif dpif; /* Kernel datapath. */
+ struct dpif *dpif; /* Datapath. */
struct port_array ifaces; /* Indexed by kernel datapath port number. */
/* Bridge ports. */
static struct bridge *bridge_create(const char *name);
static void bridge_destroy(struct bridge *);
static struct bridge *bridge_lookup(const char *name);
-static void bridge_unixctl_dump_flows(struct unixctl_conn *, const char *);
+static unixctl_cb_func bridge_unixctl_dump_flows;
static int bridge_run_one(struct bridge *);
static void bridge_reconfigure_one(struct bridge *);
static void bridge_reconfigure_controller(struct bridge *);
static void bridge_flush(struct bridge *);
static void bridge_pick_local_hw_addr(struct bridge *,
uint8_t ea[ETH_ADDR_LEN],
- const char **devname);
+ struct iface **hw_addr_iface);
static uint64_t bridge_pick_datapath_id(struct bridge *,
const uint8_t bridge_ea[ETH_ADDR_LEN],
- const char *devname);
+ struct iface *hw_addr_iface);
+static struct iface *bridge_get_local_iface(struct bridge *);
static uint64_t dpid_from_hash(const void *, size_t nbytes);
-static void bridge_unixctl_fdb_show(struct unixctl_conn *, const char *args);
+static unixctl_cb_func bridge_unixctl_fdb_show;
static void bond_init(void);
static void bond_run(struct bridge *);
uint16_t dp_ifidx);
static void port_update_bond_compat(struct port *);
static void port_update_vlan_compat(struct port *);
+static void port_update_bonding(struct port *);
static void mirror_create(struct bridge *, const char *name);
static void mirror_destroy(struct mirror *);
for (j = 0; j < port->n_ifaces; j++) {
struct iface *iface = port->ifaces[j];
if (iface->dp_ifidx < 0) {
- VLOG_ERR("%s interface not in dp%u, ignoring",
- iface->name, dpif_id(&br->dpif));
+ VLOG_ERR("%s interface not in datapath %s, ignoring",
+ iface->name, dpif_name(br->dpif));
} else {
if (iface->dp_ifidx != ODPP_LOCAL) {
svec_add(svec, iface->name);
void
bridge_init(void)
{
- int retval;
- int i;
-
- bond_init();
+ struct svec dpif_names;
+ size_t i;
- unixctl_command_register("fdb/show", bridge_unixctl_fdb_show);
+ unixctl_command_register("fdb/show", bridge_unixctl_fdb_show, NULL);
- for (i = 0; i < DP_MAX; i++) {
- struct dpif dpif;
- char devname[16];
+ svec_init(&dpif_names);
+ dp_enumerate(&dpif_names);
+ for (i = 0; i < dpif_names.n; i++) {
+ const char *dpif_name = dpif_names.names[i];
+ struct dpif *dpif;
+ int retval;
- sprintf(devname, "dp%d", i);
- retval = dpif_open(devname, &dpif);
+ retval = dpif_open(dpif_name, &dpif);
if (!retval) {
- char dpif_name[IF_NAMESIZE];
- if (dpif_get_name(&dpif, dpif_name, sizeof dpif_name)
- || !cfg_has("bridge.%s.port", dpif_name)) {
- dpif_delete(&dpif);
+ struct svec all_names;
+ size_t j;
+
+ svec_init(&all_names);
+ dpif_get_all_names(dpif, &all_names);
+ for (j = 0; j < all_names.n; j++) {
+ if (cfg_has("bridge.%s.port", all_names.names[j])) {
+ goto found;
+ }
}
- dpif_close(&dpif);
- } else if (retval != ENODEV) {
- VLOG_ERR("failed to delete datapath dp%d: %s",
- i, strerror(retval));
+ dpif_delete(dpif);
+ found:
+ svec_destroy(&all_names);
+ dpif_close(dpif);
}
}
+ svec_destroy(&dpif_names);
- unixctl_command_register("bridge/dump-flows", bridge_unixctl_dump_flows);
+ unixctl_command_register("bridge/dump-flows", bridge_unixctl_dump_flows,
+ NULL);
+ bond_init();
bridge_reconfigure();
}
* the old certificate will still be trusted until vSwitch is
* restarted. We may want to address this in vconn's SSL library. */
if (config_string_change("ssl.ca-cert", &cacert_file)
- || (stat(cacert_file, &s) && errno == ENOENT)) {
+ || (cacert_file && stat(cacert_file, &s) && errno == ENOENT)) {
vconn_ssl_set_ca_cert_file(cacert_file,
cfg_get_bool(0, "ssl.bootstrap-ca-cert"));
}
}
#endif
+/* Attempt to create the network device 'iface_name' through the netdev
+ * library. */
+static int
+set_up_iface(const char *iface_name, bool create)
+{
+ const char *type;
+ const char *arg;
+ struct svec arg_svec;
+ struct shash args;
+ int error;
+ size_t i;
+
+ /* If a type is not explicitly declared, then assume it's an existing
+ * "system" device. */
+ type = cfg_get_string(0, "iface.%s.type", iface_name);
+ if (!type || !strcmp(type, "system")) {
+ return 0;
+ }
+
+ svec_init(&arg_svec);
+ cfg_get_subsections(&arg_svec, "iface.%s.args", iface_name);
+
+ shash_init(&args);
+ SVEC_FOR_EACH (i, arg, &arg_svec) {
+ const char *value;
+
+ value = cfg_get_string(0, "iface.%s.args.%s", iface_name, arg);
+ if (value) {
+ shash_add(&args, arg, xstrdup(value));
+ }
+ }
+
+ if (create) {
+ error = netdev_create(iface_name, type, &args);
+ } else {
+ /* xxx Check to make sure that the type hasn't changed. */
+ error = netdev_reconfigure(iface_name, &args);
+ }
+
+ svec_destroy(&arg_svec);
+ shash_destroy(&args);
+
+ return error;
+}
+
+static int
+create_iface(const char *iface_name)
+{
+ return set_up_iface(iface_name, true);
+}
+
+static int
+reconfigure_iface(const char *iface_name)
+{
+ return set_up_iface(iface_name, false);
+}
+
+static void
+destroy_iface(const char *iface_name)
+{
+ netdev_destroy(iface_name);
+}
+
+
+/* iterate_and_prune_ifaces() callback function that opens the network device
+ * for 'iface', if it is not already open, and retrieves the interface's MAC
+ * address and carrier status. */
+static bool
+init_iface_netdev(struct bridge *br UNUSED, struct iface *iface,
+ void *aux UNUSED)
+{
+ if (iface->netdev) {
+ return true;
+ } else if (!netdev_open(iface->name, NETDEV_ETH_TYPE_NONE,
+ &iface->netdev)) {
+ netdev_get_carrier(iface->netdev, &iface->enabled);
+ return true;
+ } else {
+ /* If the network device can't be opened, then we're not going to try
+ * to do anything with this interface. */
+ return false;
+ }
+}
+
+static bool
+check_iface_dp_ifidx(struct bridge *br, struct iface *iface, void *aux UNUSED)
+{
+ if (iface->dp_ifidx >= 0) {
+ VLOG_DBG("%s has interface %s on port %d",
+ dpif_name(br->dpif),
+ iface->name, iface->dp_ifidx);
+ return true;
+ } else {
+ VLOG_ERR("%s interface not in %s, dropping",
+ iface->name, dpif_name(br->dpif));
+ return false;
+ }
+}
+
+static bool
+set_iface_properties(struct bridge *br UNUSED, struct iface *iface,
+ void *aux UNUSED)
+{
+ int rate, burst;
+
+ /* Set policing attributes. */
+ rate = cfg_get_int(0, "port.%s.ingress.policing-rate", iface->name);
+ burst = cfg_get_int(0, "port.%s.ingress.policing-burst", iface->name);
+ netdev_set_policing(iface->netdev, rate, burst);
+
+ /* Set MAC address of internal interfaces other than the local
+ * interface. */
+ if (iface->dp_ifidx != ODPP_LOCAL
+ && iface_is_internal(br, iface->name)) {
+ iface_set_mac(iface);
+ }
+
+ return true;
+}
+
+/* Calls 'cb' for each interfaces in 'br', passing along the 'aux' argument.
+ * Deletes from 'br' all the interfaces for which 'cb' returns false, and then
+ * deletes from 'br' any ports that no longer have any interfaces. */
+static void
+iterate_and_prune_ifaces(struct bridge *br,
+ bool (*cb)(struct bridge *, struct iface *,
+ void *aux),
+ void *aux)
+{
+ size_t i, j;
+
+ for (i = 0; i < br->n_ports; ) {
+ struct port *port = br->ports[i];
+ for (j = 0; j < port->n_ifaces; ) {
+ struct iface *iface = port->ifaces[j];
+ if (cb(br, iface, aux)) {
+ j++;
+ } else {
+ iface_destroy(iface);
+ }
+ }
+
+ if (port->n_ifaces) {
+ i++;
+ } else {
+ VLOG_ERR("%s port has no interfaces, dropping", port->name);
+ port_destroy(port);
+ }
+ }
+}
+
void
bridge_reconfigure(void)
{
- struct svec old_br, new_br, raw_new_br;
+ struct svec old_br, new_br;
struct bridge *br, *next;
- size_t i, j;
+ size_t i;
COVERAGE_INC(bridge_reconfigure);
- /* Collect old bridges. */
+ /* Collect old and new bridges. */
svec_init(&old_br);
+ svec_init(&new_br);
LIST_FOR_EACH (br, struct bridge, node, &all_bridges) {
svec_add(&old_br, br->name);
}
-
- /* Collect new bridges. */
- svec_init(&raw_new_br);
- cfg_get_subsections(&raw_new_br, "bridge");
- svec_init(&new_br);
- for (i = 0; i < raw_new_br.n; i++) {
- const char *name = raw_new_br.names[i];
- if ((!strncmp(name, "dp", 2) && isdigit(name[2])) ||
- (!strncmp(name, "nl:", 3) && isdigit(name[3]))) {
- VLOG_ERR("%s is not a valid bridge name (bridges may not be "
- "named \"dp\" or \"nl:\" followed by a digit)", name);
- } else {
- svec_add(&new_br, name);
- }
- }
- svec_destroy(&raw_new_br);
+ cfg_get_subsections(&new_br, "bridge");
/* Get rid of deleted bridges and add new bridges. */
svec_sort(&old_br);
size_t n_dpif_ports;
struct svec want_ifaces;
- dpif_port_list(&br->dpif, &dpif_ports, &n_dpif_ports);
+ dpif_port_list(br->dpif, &dpif_ports, &n_dpif_ports);
bridge_get_all_ifaces(br, &want_ifaces);
for (i = 0; i < n_dpif_ports; i++) {
const struct odp_port *p = &dpif_ports[i];
if (!svec_contains(&want_ifaces, p->devname)
&& strcmp(p->devname, br->name)) {
- int retval = dpif_port_del(&br->dpif, p->port);
+ int retval = dpif_port_del(br->dpif, p->port);
if (retval) {
- VLOG_ERR("failed to remove %s interface from dp%u: %s",
- p->devname, dpif_id(&br->dpif), strerror(retval));
+ VLOG_ERR("failed to remove %s interface from %s: %s",
+ p->devname, dpif_name(br->dpif),
+ strerror(retval));
}
+ destroy_iface(p->devname);
}
}
svec_destroy(&want_ifaces);
struct odp_port *dpif_ports;
size_t n_dpif_ports;
struct svec cur_ifaces, want_ifaces, add_ifaces;
- int next_port_no;
- dpif_port_list(&br->dpif, &dpif_ports, &n_dpif_ports);
+ dpif_port_list(br->dpif, &dpif_ports, &n_dpif_ports);
svec_init(&cur_ifaces);
for (i = 0; i < n_dpif_ports; i++) {
svec_add(&cur_ifaces, dpif_ports[i].devname);
bridge_get_all_ifaces(br, &want_ifaces);
svec_diff(&want_ifaces, &cur_ifaces, &add_ifaces, NULL, NULL);
- next_port_no = 1;
+ for (i = 0; i < cur_ifaces.n; i++) {
+ const char *if_name = cur_ifaces.names[i];
+ reconfigure_iface(if_name);
+ }
+
for (i = 0; i < add_ifaces.n; i++) {
const char *if_name = add_ifaces.names[i];
- for (;;) {
- bool internal;
- int error;
-
- /* Add to datapath. */
- internal = iface_is_internal(br, if_name);
- error = dpif_port_add(&br->dpif, if_name, next_port_no++,
- internal ? ODP_PORT_INTERNAL : 0);
- if (error != EEXIST) {
- if (next_port_no >= 256) {
- VLOG_ERR("ran out of valid port numbers on dp%u",
- dpif_id(&br->dpif));
- goto out;
- }
- if (error) {
- VLOG_ERR("failed to add %s interface to dp%u: %s",
- if_name, dpif_id(&br->dpif), strerror(error));
- }
- break;
- }
+ bool internal;
+ int error;
+
+ /* Attempt to create the network interface in case it
+ * doesn't exist yet. */
+ error = create_iface(if_name);
+ if (error) {
+ VLOG_WARN("could not create iface %s: %s\n", if_name,
+ strerror(error));
+ continue;
+ }
+
+ /* Add to datapath. */
+ internal = iface_is_internal(br, if_name);
+ error = dpif_port_add(br->dpif, if_name,
+ internal ? ODP_PORT_INTERNAL : 0, NULL);
+ if (error == EFBIG) {
+ VLOG_ERR("ran out of valid port numbers on %s",
+ dpif_name(br->dpif));
+ break;
+ } else if (error) {
+ VLOG_ERR("failed to add %s interface to %s: %s",
+ if_name, dpif_name(br->dpif), strerror(error));
}
}
- out:
svec_destroy(&cur_ifaces);
svec_destroy(&want_ifaces);
svec_destroy(&add_ifaces);
LIST_FOR_EACH (br, struct bridge, node, &all_bridges) {
uint8_t ea[8];
uint64_t dpid;
- struct iface *local_iface = NULL;
- const char *devname;
+ struct iface *local_iface;
+ struct iface *hw_addr_iface;
struct netflow_options nf_options;
bridge_fetch_dp_ifaces(br);
- for (i = 0; i < br->n_ports; ) {
- struct port *port = br->ports[i];
+ iterate_and_prune_ifaces(br, init_iface_netdev, NULL);
- for (j = 0; j < port->n_ifaces; ) {
- struct iface *iface = port->ifaces[j];
- if (iface->dp_ifidx < 0) {
- VLOG_ERR("%s interface not in dp%u, dropping",
- iface->name, dpif_id(&br->dpif));
- iface_destroy(iface);
- } else {
- if (iface->dp_ifidx == ODPP_LOCAL) {
- local_iface = iface;
- }
- VLOG_DBG("dp%u has interface %s on port %d",
- dpif_id(&br->dpif), iface->name, iface->dp_ifidx);
- j++;
- }
- }
- if (!port->n_ifaces) {
- VLOG_ERR("%s port has no interfaces, dropping", port->name);
- port_destroy(port);
- continue;
- }
- i++;
- }
+ iterate_and_prune_ifaces(br, check_iface_dp_ifidx, NULL);
/* Pick local port hardware address, datapath ID. */
- bridge_pick_local_hw_addr(br, ea, &devname);
+ bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
+ local_iface = bridge_get_local_iface(br);
if (local_iface) {
- int error = netdev_nodev_set_etheraddr(local_iface->name, ea);
+ int error = netdev_set_etheraddr(local_iface->netdev, ea);
if (error) {
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
}
}
- dpid = bridge_pick_datapath_id(br, ea, devname);
+ dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
ofproto_set_datapath_id(br->ofproto, dpid);
/* Set NetFlow configuration on this bridge. */
memset(&nf_options, 0, sizeof nf_options);
- nf_options.engine_type = br->dpif.minor;
- nf_options.engine_id = br->dpif.minor;
+ dpif_get_netflow_ids(br->dpif, &nf_options.engine_type,
+ &nf_options.engine_id);
nf_options.active_timeout = -1;
if (cfg_has("netflow.%s.engine-type", br->name)) {
struct port *port = br->ports[i];
port_update_vlan_compat(port);
-
- for (j = 0; j < port->n_ifaces; j++) {
- struct iface *iface = port->ifaces[j];
- if (iface->dp_ifidx != ODPP_LOCAL
- && iface_is_internal(br, iface->name)) {
- iface_set_mac(iface);
- }
- }
+ port_update_bonding(port);
}
}
LIST_FOR_EACH (br, struct bridge, node, &all_bridges) {
brstp_reconfigure(br);
+ iterate_and_prune_ifaces(br, set_iface_properties, NULL);
}
}
static void
bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
- const char **devname)
+ struct iface **hw_addr_iface)
{
uint64_t requested_ea;
size_t i, j;
int error;
- *devname = NULL;
+ *hw_addr_iface = NULL;
/* Did the user request a particular MAC? */
requested_ea = cfg_get_mac(0, "bridge.%s.mac", br->name);
for (j = 0; j < port->n_ifaces; j++) {
struct iface *candidate = port->ifaces[j];
uint8_t candidate_ea[ETH_ADDR_LEN];
- if (!netdev_nodev_get_etheraddr(candidate->name, candidate_ea)
+ if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
&& eth_addr_equals(iface_ea, candidate_ea)) {
iface = candidate;
}
}
/* Grab MAC. */
- error = netdev_nodev_get_etheraddr(iface->name, iface_ea);
+ error = netdev_get_etheraddr(iface->netdev, iface_ea);
if (error) {
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
VLOG_ERR_RL(&rl, "failed to obtain Ethernet address of %s: %s",
memcmp(iface_ea, ea, ETH_ADDR_LEN) < 0)
{
memcpy(ea, iface_ea, ETH_ADDR_LEN);
- *devname = iface ? iface->name : NULL;
+ *hw_addr_iface = iface;
}
}
if (eth_addr_is_multicast(ea) || eth_addr_is_vif(ea)) {
memcpy(ea, br->default_ea, ETH_ADDR_LEN);
- *devname = NULL;
+ *hw_addr_iface = NULL;
VLOG_WARN("bridge %s: using default bridge Ethernet "
"address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
} else {
/* Choose and returns the datapath ID for bridge 'br' given that the bridge
* Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
- * a network device, then that network device's name must be passed in as
- * 'devname'; if 'bridge_ea' was derived some other way, then 'devname' must be
- * passed in as a null pointer. */
+ * an interface on 'br', then that interface must be passed in as
+ * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
+ * 'hw_addr_iface' must be passed in as a null pointer. */
static uint64_t
bridge_pick_datapath_id(struct bridge *br,
const uint8_t bridge_ea[ETH_ADDR_LEN],
- const char *devname)
+ struct iface *hw_addr_iface)
{
/*
* The procedure for choosing a bridge MAC address will, in the most
return dpid;
}
- if (devname) {
+ if (hw_addr_iface) {
int vlan;
- if (!netdev_get_vlan_vid(devname, &vlan)) {
+ if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
/*
* A bridge whose MAC address is taken from a VLAN network device
* (that is, a network device created with vconfig(8) or similar
br->flush = true;
mac_learning_flush(br->ml);
}
+
+/* Returns the 'br' interface for the ODPP_LOCAL port, or null if 'br' has no
+ * such interface. */
+static struct iface *
+bridge_get_local_iface(struct bridge *br)
+{
+ size_t i, j;
+
+ for (i = 0; i < br->n_ports; i++) {
+ struct port *port = br->ports[i];
+ for (j = 0; j < port->n_ifaces; j++) {
+ struct iface *iface = port->ifaces[j];
+ if (iface->dp_ifidx == ODPP_LOCAL) {
+ return iface;
+ }
+ }
+ }
+
+ return NULL;
+}
\f
/* Bridge unixctl user interface functions. */
static void
-bridge_unixctl_fdb_show(struct unixctl_conn *conn, const char *args)
+bridge_unixctl_fdb_show(struct unixctl_conn *conn,
+ const char *args, void *aux UNUSED)
{
struct ds ds = DS_EMPTY_INITIALIZER;
const struct bridge *br;
int error;
assert(!bridge_lookup(name));
- br = xcalloc(1, sizeof *br);
+ br = xzalloc(sizeof *br);
- error = dpif_create(name, &br->dpif);
- if (error == EEXIST) {
- error = dpif_open(name, &br->dpif);
- if (error) {
- VLOG_ERR("datapath %s already exists but cannot be opened: %s",
- name, strerror(error));
- free(br);
- return NULL;
- }
- dpif_flow_flush(&br->dpif);
- } else if (error) {
- VLOG_ERR("failed to create datapath %s: %s", name, strerror(error));
+ error = dpif_create_and_open(name, &br->dpif);
+ if (error) {
free(br);
return NULL;
}
+ dpif_flow_flush(br->dpif);
error = ofproto_create(name, &bridge_ofhooks, br, &br->ofproto);
if (error) {
VLOG_ERR("failed to create switch %s: %s", name, strerror(error));
- dpif_delete(&br->dpif);
- dpif_close(&br->dpif);
+ dpif_delete(br->dpif);
+ dpif_close(br->dpif);
free(br);
return NULL;
}
list_push_back(&all_bridges, &br->node);
- VLOG_INFO("created bridge %s on dp%u", br->name, dpif_id(&br->dpif));
+ VLOG_INFO("created bridge %s on %s", br->name, dpif_name(br->dpif));
return br;
}
port_destroy(br->ports[br->n_ports - 1]);
}
list_remove(&br->node);
- error = dpif_delete(&br->dpif);
+ error = dpif_delete(br->dpif);
if (error && error != ENOENT) {
- VLOG_ERR("failed to delete dp%u: %s",
- dpif_id(&br->dpif), strerror(error));
+ VLOG_ERR("failed to delete %s: %s",
+ dpif_name(br->dpif), strerror(error));
}
- dpif_close(&br->dpif);
+ dpif_close(br->dpif);
ofproto_destroy(br->ofproto);
free(br->controller);
mac_learning_destroy(br->ml);
/* Handle requests for a listing of all flows known by the OpenFlow
* stack, including those normally hidden. */
static void
-bridge_unixctl_dump_flows(struct unixctl_conn *conn, const char *args)
+bridge_unixctl_dump_flows(struct unixctl_conn *conn,
+ const char *args, void *aux UNUSED)
{
struct bridge *br;
struct ds results;
return controller && controller[0] ? controller : NULL;
}
+static bool
+check_duplicate_ifaces(struct bridge *br, struct iface *iface, void *ifaces_)
+{
+ struct svec *ifaces = ifaces_;
+ if (!svec_contains(ifaces, iface->name)) {
+ svec_add(ifaces, iface->name);
+ svec_sort(ifaces);
+ return true;
+ } else {
+ VLOG_ERR("bridge %s: %s interface is on multiple ports, "
+ "removing from %s",
+ br->name, iface->name, iface->port->name);
+ return false;
+ }
+}
+
static void
bridge_reconfigure_one(struct bridge *br)
{
struct svec old_ports, new_ports, ifaces;
struct svec listeners, old_listeners;
struct svec snoops, old_snoops;
- size_t i, j;
+ size_t i;
/* Collect old ports. */
svec_init(&old_ports);
svec_init(&new_ports);
cfg_get_all_keys(&new_ports, "bridge.%s.port", br->name);
svec_sort(&new_ports);
- if (bridge_get_controller(br) && !svec_contains(&new_ports, br->name)) {
- svec_add(&new_ports, br->name);
- svec_sort(&new_ports);
+ if (bridge_get_controller(br)) {
+ char local_name[IF_NAMESIZE];
+ int error;
+
+ error = dpif_port_get_name(br->dpif, ODPP_LOCAL,
+ local_name, sizeof local_name);
+ if (!error && !svec_contains(&new_ports, local_name)) {
+ svec_add(&new_ports, local_name);
+ svec_sort(&new_ports);
+ }
}
if (!svec_is_unique(&new_ports)) {
VLOG_WARN("bridge %s: %s specified twice as bridge port",
/* Check and delete duplicate interfaces. */
svec_init(&ifaces);
- for (i = 0; i < br->n_ports; ) {
- struct port *port = br->ports[i];
- for (j = 0; j < port->n_ifaces; ) {
- struct iface *iface = port->ifaces[j];
- if (svec_contains(&ifaces, iface->name)) {
- VLOG_ERR("bridge %s: %s interface is on multiple ports, "
- "removing from %s",
- br->name, iface->name, port->name);
- iface_destroy(iface);
- } else {
- svec_add(&ifaces, iface->name);
- svec_sort(&ifaces);
- j++;
- }
- }
- if (!port->n_ifaces) {
- VLOG_ERR("%s port has no interfaces, dropping", port->name);
- port_destroy(port);
- } else {
- i++;
- }
- }
+ iterate_and_prune_ifaces(br, check_duplicate_ifaces, &ifaces);
svec_destroy(&ifaces);
/* Delete all flows if we're switching from connected to standalone or vice
cfg_get_string(0, "%s.accept-regex", pfx),
update_resolv_conf);
} else {
- struct netdev *netdev;
+ struct iface *local_iface;
bool in_band;
- int error;
in_band = (!cfg_is_valid(CFG_BOOL | CFG_REQUIRED,
"%s.in-band", pfx)
ofproto_set_discovery(br->ofproto, false, NULL, NULL);
ofproto_set_in_band(br->ofproto, in_band);
- error = netdev_open(br->name, NETDEV_ETH_TYPE_NONE, &netdev);
- if (!error) {
- if (cfg_is_valid(CFG_IP | CFG_REQUIRED, "%s.ip", pfx)) {
- struct in_addr ip, mask, gateway;
- ip.s_addr = cfg_get_ip(0, "%s.ip", pfx);
- mask.s_addr = cfg_get_ip(0, "%s.netmask", pfx);
- gateway.s_addr = cfg_get_ip(0, "%s.gateway", pfx);
-
- netdev_turn_flags_on(netdev, NETDEV_UP, true);
- if (!mask.s_addr) {
- mask.s_addr = guess_netmask(ip.s_addr);
- }
- if (!netdev_set_in4(netdev, ip, mask)) {
- VLOG_INFO("bridge %s: configured IP address "IP_FMT", "
- "netmask "IP_FMT,
- br->name, IP_ARGS(&ip.s_addr),
- IP_ARGS(&mask.s_addr));
- }
+ local_iface = bridge_get_local_iface(br);
+ if (local_iface
+ && cfg_is_valid(CFG_IP | CFG_REQUIRED, "%s.ip", pfx)) {
+ struct netdev *netdev = local_iface->netdev;
+ struct in_addr ip, mask, gateway;
+ ip.s_addr = cfg_get_ip(0, "%s.ip", pfx);
+ mask.s_addr = cfg_get_ip(0, "%s.netmask", pfx);
+ gateway.s_addr = cfg_get_ip(0, "%s.gateway", pfx);
+
+ netdev_turn_flags_on(netdev, NETDEV_UP, true);
+ if (!mask.s_addr) {
+ mask.s_addr = guess_netmask(ip.s_addr);
+ }
+ if (!netdev_set_in4(netdev, ip, mask)) {
+ VLOG_INFO("bridge %s: configured IP address "IP_FMT", "
+ "netmask "IP_FMT,
+ br->name, IP_ARGS(&ip.s_addr),
+ IP_ARGS(&mask.s_addr));
+ }
- if (gateway.s_addr) {
- if (!netdev_add_router(gateway)) {
- VLOG_INFO("bridge %s: configured gateway "IP_FMT,
- br->name, IP_ARGS(&gateway.s_addr));
- }
+ if (gateway.s_addr) {
+ if (!netdev_add_router(netdev, gateway)) {
+ VLOG_INFO("bridge %s: configured gateway "IP_FMT,
+ br->name, IP_ARGS(&gateway.s_addr));
}
}
- netdev_close(netdev);
}
}
}
port_array_clear(&br->ifaces);
- dpif_port_list(&br->dpif, &dpif_ports, &n_dpif_ports);
+ dpif_port_list(br->dpif, &dpif_ports, &n_dpif_ports);
for (i = 0; i < n_dpif_ports; i++) {
struct odp_port *p = &dpif_ports[i];
struct iface *iface = iface_lookup(br, p->devname);
if (iface) {
if (iface->dp_ifidx >= 0) {
- VLOG_WARN("dp%u reported interface %s twice",
- dpif_id(&br->dpif), p->devname);
+ VLOG_WARN("%s reported interface %s twice",
+ dpif_name(br->dpif), p->devname);
} else if (iface_from_dp_ifidx(br, p->port)) {
- VLOG_WARN("dp%u reported interface %"PRIu16" twice",
- dpif_id(&br->dpif), p->port);
+ VLOG_WARN("%s reported interface %"PRIu16" twice",
+ dpif_name(br->dpif), p->port);
} else {
port_array_set(&br->ifaces, p->port, iface);
iface->dp_ifidx = p->port;
}
}
+/* 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 flow_t *flow,
+ struct port *in_port, bool have_packet)
+{
+ /* Note that dl_vlan of 0 and of OFP_VLAN_NONE both mean that the packet
+ * belongs to VLAN 0, so we should treat both cases identically. (In the
+ * former case, the packet has an 802.1Q header that specifies VLAN 0,
+ * presumably to allow a priority to be specified. In the latter case, the
+ * packet does not have any 802.1Q header.) */
+ int vlan = ntohs(flow->dl_vlan);
+ if (vlan == OFP_VLAN_NONE) {
+ vlan = 0;
+ }
+ if (in_port->vlan >= 0) {
+ if (vlan) {
+ /* XXX support double tagging? */
+ if (have_packet) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+ VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %"PRIu16" tagged "
+ "packet received on port %s configured with "
+ "implicit VLAN %"PRIu16,
+ br->name, ntohs(flow->dl_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;
+}
+
+static void
+update_learning_table(struct bridge *br, const flow_t *flow, int vlan,
+ struct port *in_port)
+{
+ tag_type rev_tag = mac_learning_learn(br->ml, flow->dl_src,
+ vlan, in_port->port_idx);
+ if (rev_tag) {
+ /* 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);
+ ofproto_revalidate(br->ofproto, rev_tag);
+ }
+}
+
static bool
is_bcast_arp_reply(const flow_t *flow)
{
return true;
}
in_port = in_iface->port;
-
- /* Figure out what VLAN this packet belongs to.
- *
- * Note that dl_vlan of 0 and of OFP_VLAN_NONE both mean that the packet
- * belongs to VLAN 0, so we should treat both cases identically. (In the
- * former case, the packet has an 802.1Q header that specifies VLAN 0,
- * presumably to allow a priority to be specified. In the latter case, the
- * packet does not have any 802.1Q header.) */
- vlan = ntohs(flow->dl_vlan);
- if (vlan == OFP_VLAN_NONE) {
- vlan = 0;
- }
- if (in_port->vlan >= 0) {
- if (vlan) {
- /* XXX support double tagging? */
- if (packet != NULL) {
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
- VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %"PRIu16" tagged "
- "packet received on port %s configured with "
- "implicit VLAN %"PRIu16,
- br->name, ntohs(flow->dl_vlan),
- in_port->name, in_port->vlan);
- }
- goto done;
- }
- vlan = in_port->vlan;
- } else {
- if (!port_includes_vlan(in_port, vlan)) {
- 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);
- goto done;
- }
+ vlan = flow_get_vlan(br, flow, in_port, !!packet);
+ if (vlan < 0) {
+ goto done;
}
/* Drop frames for ports that STP wants entirely killed (both for
out_port = FLOOD_PORT;
/* Learn source MAC (but don't try to learn from revalidation). */
if (packet) {
- tag_type rev_tag = mac_learning_learn(br->ml, flow->dl_src,
- vlan, in_port->port_idx);
- if (rev_tag) {
- /* 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);
- ofproto_revalidate(br->ofproto, rev_tag);
- }
+ update_learning_table(br, flow, vlan, in_port);
}
/* Determine output port. */
tags);
if (out_port_idx >= 0 && out_port_idx < br->n_ports) {
out_port = br->ports[out_port_idx];
- } else if (!packet) {
+ } 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 will
- * prevent us from seeing future packets and learning properly. */
+ * 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;
}
bridge_flush(br);
} else {
- memcpy(iface->mac, opp->hw_addr, ETH_ADDR_LEN);
if (port->n_ifaces > 1) {
bool up = !(opp->state & OFPPS_LINK_DOWN);
bond_link_status_update(iface, up);
void *br_)
{
struct bridge *br = br_;
+ struct port *in_port;
const union odp_action *a;
+ /* 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. */
+ in_port = port_from_dp_ifidx(br, flow->in_port);
+ if (in_port) {
+ int vlan = flow_get_vlan(br, flow, in_port, false);
+ if (vlan >= 0) {
+ update_learning_table(br, flow, vlan, in_port);
+ }
+ }
+
if (!br->has_bonded_ports) {
return;
}
for (a = actions; a < &actions[n_actions]; a++) {
if (a->type == ODPAT_OUTPUT) {
- struct port *port = port_from_dp_ifidx(br, a->output.port);
- if (port && port->n_ifaces >= 2) {
- struct bond_entry *e = lookup_bond_entry(port, flow->dl_src);
+ struct port *out_port = port_from_dp_ifidx(br, a->output.port);
+ if (out_port && out_port->n_ifaces >= 2) {
+ struct bond_entry *e = lookup_bond_entry(out_port,
+ flow->dl_src);
e->tx_bytes += n_bytes;
}
}
/* Bonding unixctl user interface functions. */
static void
-bond_unixctl_list(struct unixctl_conn *conn, const char *args UNUSED)
+bond_unixctl_list(struct unixctl_conn *conn,
+ const char *args UNUSED, void *aux UNUSED)
{
struct ds ds = DS_EMPTY_INITIALIZER;
const struct bridge *br;
}
static void
-bond_unixctl_show(struct unixctl_conn *conn, const char *args)
+bond_unixctl_show(struct unixctl_conn *conn,
+ const char *args, void *aux UNUSED)
{
struct ds ds = DS_EMPTY_INITIALIZER;
const struct port *port;
}
static void
-bond_unixctl_migrate(struct unixctl_conn *conn, const char *args_)
+bond_unixctl_migrate(struct unixctl_conn *conn, const char *args_,
+ void *aux UNUSED)
{
char *args = (char *) args_;
char *save_ptr = NULL;
}
static void
-bond_unixctl_set_active_slave(struct unixctl_conn *conn, const char *args_)
+bond_unixctl_set_active_slave(struct unixctl_conn *conn, const char *args_,
+ void *aux UNUSED)
{
char *args = (char *) args_;
char *save_ptr = NULL;
}
static void
-bond_unixctl_enable_slave(struct unixctl_conn *conn, const char *args)
+bond_unixctl_enable_slave(struct unixctl_conn *conn, const char *args,
+ void *aux UNUSED)
{
enable_slave(conn, args, true);
}
static void
-bond_unixctl_disable_slave(struct unixctl_conn *conn, const char *args)
+bond_unixctl_disable_slave(struct unixctl_conn *conn, const char *args,
+ void *aux UNUSED)
{
enable_slave(conn, args, false);
}
+static void
+bond_unixctl_hash(struct unixctl_conn *conn, const char *args,
+ void *aux UNUSED)
+{
+ uint8_t mac[ETH_ADDR_LEN];
+ uint8_t hash;
+ char *hash_cstr;
+
+ if (sscanf(args, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(mac))
+ == ETH_ADDR_SCAN_COUNT) {
+ hash = bond_hash(mac);
+
+ hash_cstr = xasprintf("%u", hash);
+ unixctl_command_reply(conn, 200, hash_cstr);
+ free(hash_cstr);
+ } else {
+ unixctl_command_reply(conn, 501, "invalid mac");
+ }
+}
+
static void
bond_init(void)
{
- unixctl_command_register("bond/list", bond_unixctl_list);
- unixctl_command_register("bond/show", bond_unixctl_show);
- unixctl_command_register("bond/migrate", bond_unixctl_migrate);
+ unixctl_command_register("bond/list", bond_unixctl_list, NULL);
+ unixctl_command_register("bond/show", bond_unixctl_show, NULL);
+ unixctl_command_register("bond/migrate", bond_unixctl_migrate, NULL);
unixctl_command_register("bond/set-active-slave",
- bond_unixctl_set_active_slave);
- unixctl_command_register("bond/enable-slave", bond_unixctl_enable_slave);
- unixctl_command_register("bond/disable-slave", bond_unixctl_disable_slave);
+ bond_unixctl_set_active_slave, NULL);
+ unixctl_command_register("bond/enable-slave", bond_unixctl_enable_slave,
+ NULL);
+ unixctl_command_register("bond/disable-slave", bond_unixctl_disable_slave,
+ NULL);
+ unixctl_command_register("bond/hash", bond_unixctl_hash, NULL);
}
\f
/* Port functions. */
{
struct port *port;
- port = xcalloc(1, sizeof *port);
+ port = xzalloc(sizeof *port);
port->bridge = br;
port->port_idx = br->n_ports;
port->vlan = -1;
if (slave->up) {
bond.up = true;
}
- memcpy(slave->mac, iface->mac, ETH_ADDR_LEN);
+ netdev_get_etheraddr(iface->netdev, slave->mac);
}
if (cfg_get_bool(0, "bonding.%s.fake-iface", port->name)) {
&& p->n_ifaces
&& (!vlandev_name || strcmp(p->name, vlandev_name) <= 0))
{
- const uint8_t *ea = p->ifaces[0]->mac;
+ uint8_t ea[ETH_ADDR_LEN];
+ netdev_get_etheraddr(p->ifaces[0]->netdev, ea);
if (!eth_addr_is_multicast(ea) &&
!eth_addr_is_reserved(ea) &&
!eth_addr_is_zero(ea)) {
{
struct iface *iface;
- iface = xcalloc(1, sizeof *iface);
+ iface = xzalloc(sizeof *iface);
iface->port = port;
iface->port_ifidx = port->n_ifaces;
iface->name = xstrdup(name);
iface->dp_ifidx = -1;
iface->tag = tag_create_random();
iface->delay_expires = LLONG_MAX;
-
- if (!cfg_get_bool(0, "iface.%s.internal", iface->name)) {
- netdev_nodev_get_etheraddr(name, iface->mac);
- netdev_nodev_get_carrier(name, &iface->enabled);
- } else {
- /* Internal interfaces are created later by the call to dpif_port_add()
- * in bridge_reconfigure(). Until then, we can't obtain any
- * information about them. (There's no real value in doing so, anyway,
- * because the 'mac' and 'enabled' values are only used for interfaces
- * that are bond slaves, and it doesn't normally make sense to bond an
- * internal interface.) */
- }
+ iface->netdev = NULL;
if (port->n_ifaces >= port->allocated_ifaces) {
port->ifaces = x2nrealloc(port->ifaces, &port->allocated_ifaces,
VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
- port_update_bonding(port);
bridge_flush(port->bridge);
}
del = port->ifaces[iface->port_ifidx] = port->ifaces[--port->n_ifaces];
del->port_ifidx = iface->port_ifidx;
+ netdev_close(iface->netdev);
free(iface->name);
free(iface);
bond_send_learning_packets(port);
}
- port_update_bonding(port);
bridge_flush(port->bridge);
}
}
VLOG_ERR("ignoring iface.%s.mac; use bridge.%s.mac instead",
iface->name, iface->name);
} else {
- int error = netdev_nodev_set_etheraddr(iface->name, ea);
+ int error = netdev_set_etheraddr(iface->netdev, ea);
if (error) {
VLOG_ERR("interface %s: setting MAC failed (%s)",
iface->name, strerror(error));
mirror_reconfigure(struct bridge *br)
{
struct svec old_mirrors, new_mirrors;
- size_t i;
+ size_t i, n_rspan_vlans;
+ unsigned long *rspan_vlans;
/* Collect old and new mirrors. */
svec_init(&old_mirrors);
m->out_port->is_mirror_output_port = true;
}
}
+
+ /* Update learning disabled vlans (for RSPAN). */
+ rspan_vlans = NULL;
+ n_rspan_vlans = cfg_count("vlan.%s.disable-learning", br->name);
+ if (n_rspan_vlans) {
+ rspan_vlans = bitmap_allocate(4096);
+
+ for (i = 0; i < n_rspan_vlans; i++) {
+ int vlan = cfg_get_vlan(i, "vlan.%s.disable-learning", br->name);
+ if (vlan >= 0) {
+ bitmap_set1(rspan_vlans, vlan);
+ VLOG_INFO("bridge %s: disabling learning on vlan %d\n",
+ br->name, vlan);
+ } else {
+ VLOG_ERR("bridge %s: invalid value '%s' for learning disabled "
+ "VLAN", br->name,
+ cfg_get_string(i, "vlan.%s.disable-learning", br->name));
+ }
+ }
+ }
+ if (mac_learning_set_disabled_vlans(br->ml, rspan_vlans)) {
+ bridge_flush(br);
+ }
}
static void
VLOG_INFO("created port mirror %s on bridge %s", name, br->name);
bridge_flush(br);
- br->mirrors[i] = m = xcalloc(1, sizeof *m);
+ br->mirrors[i] = m = xzalloc(sizeof *m);
m->bridge = br;
m->idx = i;
m->name = xstrdup(name);
if (!iface) {
VLOG_WARN_RL(&rl, "%s: cannot send BPDU on unknown port %d",
br->name, port_no);
- } else if (eth_addr_is_zero(iface->mac)) {
- VLOG_WARN_RL(&rl, "%s: cannot send BPDU on port %d with unknown MAC",
- br->name, port_no);
} else {
- union ofp_action action;
struct eth_header *eth = pkt->l2;
- flow_t flow;
- memcpy(eth->eth_src, iface->mac, ETH_ADDR_LEN);
+ netdev_get_etheraddr(iface->netdev, eth->eth_src);
+ if (eth_addr_is_zero(eth->eth_src)) {
+ VLOG_WARN_RL(&rl, "%s: cannot send BPDU on port %d "
+ "with unknown MAC", br->name, port_no);
+ } else {
+ union ofp_action action;
+ flow_t flow;
- memset(&action, 0, sizeof action);
- action.type = htons(OFPAT_OUTPUT);
- action.output.len = htons(sizeof action);
- action.output.port = htons(port_no);
+ memset(&action, 0, sizeof action);
+ action.type = htons(OFPAT_OUTPUT);
+ action.output.len = htons(sizeof action);
+ action.output.port = htons(port_no);
- flow_extract(pkt, ODPP_NONE, &flow);
- ofproto_send_packet(br->ofproto, &flow, &action, 1, pkt);
+ flow_extract(pkt, ODPP_NONE, &flow);
+ ofproto_send_packet(br->ofproto, &flow, &action, 1, pkt);
+ }
}
ofpbuf_delete(pkt);
}
projects / cascardo / ovs.git / blobdiff