mirror of
https://github.com/openvswitch/ovs
synced 2025-08-30 05:47:55 +00:00
cb22974d77
This is a straight search-and-replace, except that I also removed #include <assert.h> from each file where there were no assert calls left. Signed-off-by: Ben Pfaff <blp@nicira.com> Acked-by: Ethan Jackson <ethan@nicira.com>
4013 lines
128 KiB
C
4013 lines
128 KiB
C
/* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <config.h>
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#include "bridge.h"
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#include <errno.h>
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#include <inttypes.h>
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#include <stdlib.h>
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#include "bitmap.h"
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#include "bond.h"
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#include "cfm.h"
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#include "coverage.h"
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#include "daemon.h"
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#include "dirs.h"
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#include "dynamic-string.h"
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#include "hash.h"
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#include "hmap.h"
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#include "hmapx.h"
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#include "jsonrpc.h"
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#include "lacp.h"
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#include "list.h"
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#include "mac-learning.h"
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#include "meta-flow.h"
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#include "netdev.h"
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#include "ofp-print.h"
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#include "ofp-util.h"
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#include "ofpbuf.h"
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#include "ofproto/ofproto.h"
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#include "poll-loop.h"
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#include "sha1.h"
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#include "shash.h"
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#include "smap.h"
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#include "socket-util.h"
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#include "stream.h"
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#include "stream-ssl.h"
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#include "sset.h"
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#include "system-stats.h"
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#include "timeval.h"
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#include "util.h"
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#include "unixctl.h"
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#include "vlandev.h"
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#include "lib/vswitch-idl.h"
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#include "xenserver.h"
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#include "vlog.h"
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#include "sflow_api.h"
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#include "vlan-bitmap.h"
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VLOG_DEFINE_THIS_MODULE(bridge);
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COVERAGE_DEFINE(bridge_reconfigure);
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/* Configuration of an uninstantiated iface. */
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struct if_cfg {
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struct hmap_node hmap_node; /* Node in bridge's if_cfg_todo. */
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const struct ovsrec_interface *cfg; /* Interface record. */
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const struct ovsrec_port *parent; /* Parent port record. */
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int64_t ofport; /* Requested OpenFlow port number. */
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};
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/* OpenFlow port slated for removal from ofproto. */
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struct ofpp_garbage {
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struct list list_node; /* Node in bridge's ofpp_garbage. */
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uint16_t ofp_port; /* Port to be deleted. */
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};
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struct iface {
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/* These members are always valid. */
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struct list port_elem; /* Element in struct port's "ifaces" list. */
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struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
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struct port *port; /* Containing port. */
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char *name; /* Host network device name. */
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/* These members are valid only after bridge_reconfigure() causes them to
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* be initialized. */
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struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
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int ofp_port; /* OpenFlow port number, -1 if unknown. */
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struct netdev *netdev; /* Network device. */
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const char *type; /* Usually same as cfg->type. */
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const struct ovsrec_interface *cfg;
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};
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struct mirror {
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struct uuid uuid; /* UUID of this "mirror" record in database. */
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struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
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struct bridge *bridge;
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char *name;
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const struct ovsrec_mirror *cfg;
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};
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struct port {
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struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
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struct bridge *bridge;
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char *name;
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const struct ovsrec_port *cfg;
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/* An ordinary bridge port has 1 interface.
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* A bridge port for bonding has at least 2 interfaces. */
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struct list ifaces; /* List of "struct iface"s. */
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};
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struct bridge {
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struct hmap_node node; /* In 'all_bridges'. */
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char *name; /* User-specified arbitrary name. */
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char *type; /* Datapath type. */
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uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
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uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
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const struct ovsrec_bridge *cfg;
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/* OpenFlow switch processing. */
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struct ofproto *ofproto; /* OpenFlow switch. */
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/* Bridge ports. */
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struct hmap ports; /* "struct port"s indexed by name. */
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struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
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struct hmap iface_by_name; /* "struct iface"s indexed by name. */
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struct list ofpp_garbage; /* "struct ofpp_garbage" slated for removal. */
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struct hmap if_cfg_todo; /* "struct if_cfg"s slated for creation.
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Indexed on 'cfg->name'. */
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/* Port mirroring. */
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struct hmap mirrors; /* "struct mirror" indexed by UUID. */
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/* Synthetic local port if necessary. */
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struct ovsrec_port synth_local_port;
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struct ovsrec_interface synth_local_iface;
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struct ovsrec_interface *synth_local_ifacep;
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};
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/* All bridges, indexed by name. */
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static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
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/* OVSDB IDL used to obtain configuration. */
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static struct ovsdb_idl *idl;
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/* Most recently processed IDL sequence number. */
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static unsigned int idl_seqno;
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/* Each time this timer expires, the bridge fetches interface and mirror
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* statistics and pushes them into the database. */
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#define IFACE_STATS_INTERVAL (5 * 1000) /* In milliseconds. */
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static long long int iface_stats_timer = LLONG_MIN;
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/* In some datapaths, creating and destroying OpenFlow ports can be extremely
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* expensive. This can cause bridge_reconfigure() to take a long time during
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* which no other work can be done. To deal with this problem, we limit port
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* adds and deletions to a window of OFP_PORT_ACTION_WINDOW milliseconds per
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* call to bridge_reconfigure(). If there is more work to do after the limit
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* is reached, 'need_reconfigure', is flagged and it's done on the next loop.
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* This allows the rest of the code to catch up on important things like
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* forwarding packets. */
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#define OFP_PORT_ACTION_WINDOW 10
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static bool reconfiguring = false;
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static void add_del_bridges(const struct ovsrec_open_vswitch *);
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static void bridge_update_ofprotos(void);
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static void bridge_create(const struct ovsrec_bridge *);
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static void bridge_destroy(struct bridge *);
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static struct bridge *bridge_lookup(const char *name);
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static unixctl_cb_func bridge_unixctl_dump_flows;
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static unixctl_cb_func bridge_unixctl_reconnect;
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static size_t bridge_get_controllers(const struct bridge *br,
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struct ovsrec_controller ***controllersp);
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static void bridge_add_del_ports(struct bridge *,
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const unsigned long int *splinter_vlans);
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static void bridge_refresh_ofp_port(struct bridge *);
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static void bridge_configure_datapath_id(struct bridge *);
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static void bridge_configure_flow_eviction_threshold(struct bridge *);
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static void bridge_configure_netflow(struct bridge *);
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static void bridge_configure_forward_bpdu(struct bridge *);
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static void bridge_configure_mac_table(struct bridge *);
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static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
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static void bridge_configure_stp(struct bridge *);
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static void bridge_configure_tables(struct bridge *);
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static void bridge_configure_dp_desc(struct bridge *);
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static void bridge_configure_remotes(struct bridge *,
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const struct sockaddr_in *managers,
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size_t n_managers);
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static void bridge_pick_local_hw_addr(struct bridge *,
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uint8_t ea[ETH_ADDR_LEN],
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struct iface **hw_addr_iface);
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static uint64_t bridge_pick_datapath_id(struct bridge *,
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const uint8_t bridge_ea[ETH_ADDR_LEN],
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struct iface *hw_addr_iface);
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static void bridge_queue_if_cfg(struct bridge *,
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const struct ovsrec_interface *,
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const struct ovsrec_port *);
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static uint64_t dpid_from_hash(const void *, size_t nbytes);
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static bool bridge_has_bond_fake_iface(const struct bridge *,
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const char *name);
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static bool port_is_bond_fake_iface(const struct port *);
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static unixctl_cb_func qos_unixctl_show;
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static struct port *port_create(struct bridge *, const struct ovsrec_port *);
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static void port_del_ifaces(struct port *);
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static void port_destroy(struct port *);
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static struct port *port_lookup(const struct bridge *, const char *name);
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static void port_configure(struct port *);
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static struct lacp_settings *port_configure_lacp(struct port *,
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struct lacp_settings *);
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static void port_configure_bond(struct port *, struct bond_settings *,
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uint32_t *bond_stable_ids);
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static bool port_is_synthetic(const struct port *);
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static void reconfigure_system_stats(const struct ovsrec_open_vswitch *);
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static void run_system_stats(void);
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static void bridge_configure_mirrors(struct bridge *);
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static struct mirror *mirror_create(struct bridge *,
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const struct ovsrec_mirror *);
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static void mirror_destroy(struct mirror *);
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static bool mirror_configure(struct mirror *);
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static void mirror_refresh_stats(struct mirror *);
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static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
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static bool iface_create(struct bridge *, struct if_cfg *, int ofp_port);
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static bool iface_is_internal(const struct ovsrec_interface *iface,
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const struct ovsrec_bridge *br);
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static const char *iface_get_type(const struct ovsrec_interface *,
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const struct ovsrec_bridge *);
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static void iface_destroy(struct iface *);
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static struct iface *iface_lookup(const struct bridge *, const char *name);
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static struct iface *iface_find(const char *name);
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static struct if_cfg *if_cfg_lookup(const struct bridge *, const char *name);
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static struct iface *iface_from_ofp_port(const struct bridge *,
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uint16_t ofp_port);
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static void iface_set_mac(struct iface *);
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static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
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static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
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static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
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static void iface_configure_cfm(struct iface *);
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static void iface_refresh_cfm_stats(struct iface *);
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static void iface_refresh_stats(struct iface *);
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static void iface_refresh_status(struct iface *);
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static bool iface_is_synthetic(const struct iface *);
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static int64_t iface_pick_ofport(const struct ovsrec_interface *);
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/* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
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*
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* This is deprecated. It is only for compatibility with broken device drivers
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* in old versions of Linux that do not properly support VLANs when VLAN
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* devices are not used. When broken device drivers are no longer in
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* widespread use, we will delete these interfaces. */
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/* True if VLAN splinters are enabled on any interface, false otherwise.*/
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static bool vlan_splinters_enabled_anywhere;
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static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
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static unsigned long int *collect_splinter_vlans(
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const struct ovsrec_open_vswitch *);
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static void configure_splinter_port(struct port *);
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static void add_vlan_splinter_ports(struct bridge *,
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const unsigned long int *splinter_vlans,
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struct shash *ports);
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static void
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bridge_init_ofproto(const struct ovsrec_open_vswitch *cfg)
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{
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struct shash iface_hints;
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static bool initialized = false;
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int i;
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if (initialized) {
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return;
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}
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shash_init(&iface_hints);
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if (cfg) {
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for (i = 0; i < cfg->n_bridges; i++) {
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const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
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int j;
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for (j = 0; j < br_cfg->n_ports; j++) {
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struct ovsrec_port *port_cfg = br_cfg->ports[j];
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int k;
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for (k = 0; k < port_cfg->n_interfaces; k++) {
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struct ovsrec_interface *if_cfg = port_cfg->interfaces[k];
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struct iface_hint *iface_hint;
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iface_hint = xmalloc(sizeof *iface_hint);
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iface_hint->br_name = br_cfg->name;
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iface_hint->br_type = br_cfg->datapath_type;
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iface_hint->ofp_port = iface_pick_ofport(if_cfg);
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shash_add(&iface_hints, if_cfg->name, iface_hint);
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}
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}
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}
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}
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ofproto_init(&iface_hints);
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shash_destroy_free_data(&iface_hints);
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initialized = true;
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}
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/* Public functions. */
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/* Initializes the bridge module, configuring it to obtain its configuration
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* from an OVSDB server accessed over 'remote', which should be a string in a
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* form acceptable to ovsdb_idl_create(). */
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void
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bridge_init(const char *remote)
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{
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/* Create connection to database. */
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idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
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idl_seqno = ovsdb_idl_get_seqno(idl);
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ovsdb_idl_set_lock(idl, "ovs_vswitchd");
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ovsdb_idl_verify_write_only(idl);
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ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
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ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
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ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
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ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
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ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
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ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
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ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
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ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
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ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
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ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
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ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
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ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
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ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
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ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_health);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_opstate);
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ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
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ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
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ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
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ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
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ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
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ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
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ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
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ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
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ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
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ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
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ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
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ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
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ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
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ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
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ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
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ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
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ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
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ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
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/* Register unixctl commands. */
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unixctl_command_register("qos/show", "interface", 1, 1,
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qos_unixctl_show, NULL);
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unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
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bridge_unixctl_dump_flows, NULL);
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unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
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bridge_unixctl_reconnect, NULL);
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lacp_init();
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bond_init();
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cfm_init();
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stp_init();
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}
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void
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bridge_exit(void)
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{
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struct bridge *br, *next_br;
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HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
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bridge_destroy(br);
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}
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ovsdb_idl_destroy(idl);
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}
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/* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
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* addresses and ports into '*managersp' and '*n_managersp'. The caller is
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* responsible for freeing '*managersp' (with free()).
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*
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* You may be asking yourself "why does ovs-vswitchd care?", because
|
||
* ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
|
||
* should not be and in fact is not directly involved in that. But
|
||
* ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
|
||
* it has to tell in-band control where the managers are to enable that.
|
||
* (Thus, only managers connected in-band are collected.)
|
||
*/
|
||
static void
|
||
collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
|
||
struct sockaddr_in **managersp, size_t *n_managersp)
|
||
{
|
||
struct sockaddr_in *managers = NULL;
|
||
size_t n_managers = 0;
|
||
struct sset targets;
|
||
size_t i;
|
||
|
||
/* Collect all of the potential targets from the "targets" columns of the
|
||
* rows pointed to by "manager_options", excluding any that are
|
||
* out-of-band. */
|
||
sset_init(&targets);
|
||
for (i = 0; i < ovs_cfg->n_manager_options; i++) {
|
||
struct ovsrec_manager *m = ovs_cfg->manager_options[i];
|
||
|
||
if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
|
||
sset_find_and_delete(&targets, m->target);
|
||
} else {
|
||
sset_add(&targets, m->target);
|
||
}
|
||
}
|
||
|
||
/* Now extract the targets' IP addresses. */
|
||
if (!sset_is_empty(&targets)) {
|
||
const char *target;
|
||
|
||
managers = xmalloc(sset_count(&targets) * sizeof *managers);
|
||
SSET_FOR_EACH (target, &targets) {
|
||
struct sockaddr_in *sin = &managers[n_managers];
|
||
|
||
if (stream_parse_target_with_default_ports(target,
|
||
JSONRPC_TCP_PORT,
|
||
JSONRPC_SSL_PORT,
|
||
sin)) {
|
||
n_managers++;
|
||
}
|
||
}
|
||
}
|
||
sset_destroy(&targets);
|
||
|
||
*managersp = managers;
|
||
*n_managersp = n_managers;
|
||
}
|
||
|
||
static void
|
||
bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
|
||
{
|
||
unsigned long int *splinter_vlans;
|
||
struct bridge *br;
|
||
|
||
COVERAGE_INC(bridge_reconfigure);
|
||
|
||
ovs_assert(!reconfiguring);
|
||
reconfiguring = true;
|
||
|
||
/* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
|
||
* to 'ovs_cfg' while update the "if_cfg_queue", with only very minimal
|
||
* configuration otherwise.
|
||
*
|
||
* This is mostly an update to bridge data structures. Nothing is pushed
|
||
* down to ofproto or lower layers. */
|
||
add_del_bridges(ovs_cfg);
|
||
splinter_vlans = collect_splinter_vlans(ovs_cfg);
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
bridge_add_del_ports(br, splinter_vlans);
|
||
}
|
||
free(splinter_vlans);
|
||
|
||
/* Delete datapaths that are no longer configured, and create ones which
|
||
* don't exist but should. */
|
||
bridge_update_ofprotos();
|
||
|
||
/* Make sure each "struct iface" has a correct ofp_port in its ofproto. */
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
bridge_refresh_ofp_port(br);
|
||
}
|
||
|
||
/* Clear database records for "if_cfg"s which haven't been instantiated. */
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
struct if_cfg *if_cfg;
|
||
|
||
HMAP_FOR_EACH (if_cfg, hmap_node, &br->if_cfg_todo) {
|
||
iface_clear_db_record(if_cfg->cfg);
|
||
}
|
||
}
|
||
|
||
reconfigure_system_stats(ovs_cfg);
|
||
}
|
||
|
||
static bool
|
||
bridge_reconfigure_ofp(void)
|
||
{
|
||
long long int deadline;
|
||
struct bridge *br;
|
||
|
||
time_refresh();
|
||
deadline = time_msec() + OFP_PORT_ACTION_WINDOW;
|
||
|
||
/* The kernel will reject any attempt to add a given port to a datapath if
|
||
* that port already belongs to a different datapath, so we must do all
|
||
* port deletions before any port additions. */
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
struct ofpp_garbage *garbage, *next;
|
||
|
||
LIST_FOR_EACH_SAFE (garbage, next, list_node, &br->ofpp_garbage) {
|
||
/* It's a bit dangerous to call bridge_run_fast() here as ofproto's
|
||
* internal datastructures may not be consistent. Eventually, when
|
||
* port additions and deletions are cheaper, these calls should be
|
||
* removed. */
|
||
bridge_run_fast();
|
||
ofproto_port_del(br->ofproto, garbage->ofp_port);
|
||
list_remove(&garbage->list_node);
|
||
free(garbage);
|
||
|
||
time_refresh();
|
||
if (time_msec() >= deadline) {
|
||
return false;
|
||
}
|
||
bridge_run_fast();
|
||
}
|
||
}
|
||
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
struct if_cfg *if_cfg, *next;
|
||
|
||
HMAP_FOR_EACH_SAFE (if_cfg, next, hmap_node, &br->if_cfg_todo) {
|
||
iface_create(br, if_cfg, -1);
|
||
time_refresh();
|
||
if (time_msec() >= deadline) {
|
||
return false;
|
||
}
|
||
}
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
static bool
|
||
bridge_reconfigure_continue(const struct ovsrec_open_vswitch *ovs_cfg)
|
||
{
|
||
struct sockaddr_in *managers;
|
||
int sflow_bridge_number;
|
||
size_t n_managers;
|
||
struct bridge *br;
|
||
bool done;
|
||
|
||
ovs_assert(reconfiguring);
|
||
done = bridge_reconfigure_ofp();
|
||
|
||
/* Complete the configuration. */
|
||
sflow_bridge_number = 0;
|
||
collect_in_band_managers(ovs_cfg, &managers, &n_managers);
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
struct port *port;
|
||
|
||
/* We need the datapath ID early to allow LACP ports to use it as the
|
||
* default system ID. */
|
||
bridge_configure_datapath_id(br);
|
||
|
||
HMAP_FOR_EACH (port, hmap_node, &br->ports) {
|
||
struct iface *iface;
|
||
|
||
port_configure(port);
|
||
|
||
LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
|
||
iface_configure_cfm(iface);
|
||
iface_configure_qos(iface, port->cfg->qos);
|
||
iface_set_mac(iface);
|
||
}
|
||
}
|
||
bridge_configure_mirrors(br);
|
||
bridge_configure_flow_eviction_threshold(br);
|
||
bridge_configure_forward_bpdu(br);
|
||
bridge_configure_mac_table(br);
|
||
bridge_configure_remotes(br, managers, n_managers);
|
||
bridge_configure_netflow(br);
|
||
bridge_configure_sflow(br, &sflow_bridge_number);
|
||
bridge_configure_stp(br);
|
||
bridge_configure_tables(br);
|
||
bridge_configure_dp_desc(br);
|
||
}
|
||
free(managers);
|
||
|
||
if (done) {
|
||
/* ovs-vswitchd has completed initialization, so allow the process that
|
||
* forked us to exit successfully. */
|
||
daemonize_complete();
|
||
reconfiguring = false;
|
||
|
||
VLOG_INFO_ONCE("%s (Open vSwitch) %s", program_name, VERSION);
|
||
}
|
||
|
||
return done;
|
||
}
|
||
|
||
/* Delete ofprotos which aren't configured or have the wrong type. Create
|
||
* ofprotos which don't exist but need to. */
|
||
static void
|
||
bridge_update_ofprotos(void)
|
||
{
|
||
struct bridge *br, *next;
|
||
struct sset names;
|
||
struct sset types;
|
||
const char *type;
|
||
|
||
/* Delete ofprotos with no bridge or with the wrong type. */
|
||
sset_init(&names);
|
||
sset_init(&types);
|
||
ofproto_enumerate_types(&types);
|
||
SSET_FOR_EACH (type, &types) {
|
||
const char *name;
|
||
|
||
ofproto_enumerate_names(type, &names);
|
||
SSET_FOR_EACH (name, &names) {
|
||
br = bridge_lookup(name);
|
||
if (!br || strcmp(type, br->type)) {
|
||
ofproto_delete(name, type);
|
||
}
|
||
}
|
||
}
|
||
sset_destroy(&names);
|
||
sset_destroy(&types);
|
||
|
||
/* Add ofprotos for bridges which don't have one yet. */
|
||
HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
|
||
struct bridge *br2;
|
||
int error;
|
||
|
||
if (br->ofproto) {
|
||
continue;
|
||
}
|
||
|
||
/* Remove ports from any datapath with the same name as 'br'. If we
|
||
* don't do this, creating 'br''s ofproto will fail because a port with
|
||
* the same name as its local port already exists. */
|
||
HMAP_FOR_EACH (br2, node, &all_bridges) {
|
||
struct ofproto_port ofproto_port;
|
||
|
||
if (!br2->ofproto) {
|
||
continue;
|
||
}
|
||
|
||
if (!ofproto_port_query_by_name(br2->ofproto, br->name,
|
||
&ofproto_port)) {
|
||
error = ofproto_port_del(br2->ofproto, ofproto_port.ofp_port);
|
||
if (error) {
|
||
VLOG_ERR("failed to delete port %s: %s", ofproto_port.name,
|
||
strerror(error));
|
||
}
|
||
ofproto_port_destroy(&ofproto_port);
|
||
}
|
||
}
|
||
|
||
error = ofproto_create(br->name, br->type, &br->ofproto);
|
||
if (error) {
|
||
VLOG_ERR("failed to create bridge %s: %s", br->name,
|
||
strerror(error));
|
||
bridge_destroy(br);
|
||
}
|
||
}
|
||
}
|
||
|
||
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;
|
||
|
||
if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
|
||
configure_splinter_port(port);
|
||
return;
|
||
}
|
||
|
||
/* 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->ofp_port;
|
||
}
|
||
|
||
/* Get VLAN tag. */
|
||
s.vlan = -1;
|
||
if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
|
||
s.vlan = *cfg->tag;
|
||
}
|
||
|
||
/* Get VLAN trunks. */
|
||
s.trunks = NULL;
|
||
if (cfg->n_trunks) {
|
||
s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
|
||
}
|
||
|
||
/* Get VLAN mode. */
|
||
if (cfg->vlan_mode) {
|
||
if (!strcmp(cfg->vlan_mode, "access")) {
|
||
s.vlan_mode = PORT_VLAN_ACCESS;
|
||
} else if (!strcmp(cfg->vlan_mode, "trunk")) {
|
||
s.vlan_mode = PORT_VLAN_TRUNK;
|
||
} else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
|
||
s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
|
||
} else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
|
||
s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
|
||
} else {
|
||
/* This "can't happen" because ovsdb-server should prevent it. */
|
||
VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
|
||
s.vlan_mode = PORT_VLAN_TRUNK;
|
||
}
|
||
} else {
|
||
if (s.vlan >= 0) {
|
||
s.vlan_mode = PORT_VLAN_ACCESS;
|
||
if (cfg->n_trunks) {
|
||
VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
|
||
port->name);
|
||
}
|
||
} else {
|
||
s.vlan_mode = PORT_VLAN_TRUNK;
|
||
}
|
||
}
|
||
s.use_priority_tags = smap_get_bool(&cfg->other_config, "priority-tags",
|
||
false);
|
||
|
||
/* 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) {
|
||
s.bond = &bond_settings;
|
||
s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
|
||
port_configure_bond(port, &bond_settings, s.bond_stable_ids);
|
||
} else {
|
||
s.bond = NULL;
|
||
s.bond_stable_ids = NULL;
|
||
|
||
LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
|
||
netdev_set_miimon_interval(iface->netdev, 0);
|
||
}
|
||
}
|
||
|
||
/* Register. */
|
||
ofproto_bundle_register(port->bridge->ofproto, port, &s);
|
||
|
||
/* Clean up. */
|
||
free(s.slaves);
|
||
free(s.trunks);
|
||
free(s.lacp_slaves);
|
||
free(s.bond_stable_ids);
|
||
}
|
||
|
||
/* Pick local port hardware address and datapath ID for 'br'. */
|
||
static void
|
||
bridge_configure_datapath_id(struct bridge *br)
|
||
{
|
||
uint8_t ea[ETH_ADDR_LEN];
|
||
uint64_t dpid;
|
||
struct iface *local_iface;
|
||
struct iface *hw_addr_iface;
|
||
char *dpid_string;
|
||
|
||
bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
|
||
local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
|
||
if (local_iface) {
|
||
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 "
|
||
"Ethernet address: %s",
|
||
br->name, strerror(error));
|
||
}
|
||
}
|
||
memcpy(br->ea, ea, ETH_ADDR_LEN);
|
||
|
||
dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
|
||
if (dpid != ofproto_get_datapath_id(br->ofproto)) {
|
||
VLOG_INFO("bridge %s: using datapath ID %016"PRIx64, br->name, dpid);
|
||
ofproto_set_datapath_id(br->ofproto, dpid);
|
||
}
|
||
|
||
dpid_string = xasprintf("%016"PRIx64, dpid);
|
||
ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
|
||
free(dpid_string);
|
||
}
|
||
|
||
/* Returns a bitmap of "enum ofputil_protocol"s that are allowed for use with
|
||
* 'br'. */
|
||
static uint32_t
|
||
bridge_get_allowed_versions(struct bridge *br)
|
||
{
|
||
if (!br->cfg->n_protocols)
|
||
return 0;
|
||
|
||
return ofputil_versions_from_strings(br->cfg->protocols,
|
||
br->cfg->n_protocols);
|
||
}
|
||
|
||
/* Set NetFlow configuration on 'br'. */
|
||
static void
|
||
bridge_configure_netflow(struct bridge *br)
|
||
{
|
||
struct ovsrec_netflow *cfg = br->cfg->netflow;
|
||
struct netflow_options opts;
|
||
|
||
if (!cfg) {
|
||
ofproto_set_netflow(br->ofproto, NULL);
|
||
return;
|
||
}
|
||
|
||
memset(&opts, 0, sizeof opts);
|
||
|
||
/* Get default NetFlow configuration from datapath.
|
||
* Apply overrides from 'cfg'. */
|
||
ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
|
||
if (cfg->engine_type) {
|
||
opts.engine_type = *cfg->engine_type;
|
||
}
|
||
if (cfg->engine_id) {
|
||
opts.engine_id = *cfg->engine_id;
|
||
}
|
||
|
||
/* Configure active timeout interval. */
|
||
opts.active_timeout = cfg->active_timeout;
|
||
if (!opts.active_timeout) {
|
||
opts.active_timeout = -1;
|
||
} else if (opts.active_timeout < 0) {
|
||
VLOG_WARN("bridge %s: active timeout interval set to negative "
|
||
"value, using default instead (%d seconds)", br->name,
|
||
NF_ACTIVE_TIMEOUT_DEFAULT);
|
||
opts.active_timeout = -1;
|
||
}
|
||
|
||
/* Add engine ID to interface number to disambiguate bridgs? */
|
||
opts.add_id_to_iface = cfg->add_id_to_interface;
|
||
if (opts.add_id_to_iface) {
|
||
if (opts.engine_id > 0x7f) {
|
||
VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
|
||
"another vswitch, choose an engine id less than 128",
|
||
br->name);
|
||
}
|
||
if (hmap_count(&br->ports) > 508) {
|
||
VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
|
||
"another port when more than 508 ports are used",
|
||
br->name);
|
||
}
|
||
}
|
||
|
||
/* Collectors. */
|
||
sset_init(&opts.collectors);
|
||
sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
|
||
|
||
/* Configure. */
|
||
if (ofproto_set_netflow(br->ofproto, &opts)) {
|
||
VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
|
||
}
|
||
sset_destroy(&opts.collectors);
|
||
}
|
||
|
||
/* Set sFlow configuration on 'br'. */
|
||
static void
|
||
bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
|
||
{
|
||
const struct ovsrec_sflow *cfg = br->cfg->sflow;
|
||
struct ovsrec_controller **controllers;
|
||
struct ofproto_sflow_options oso;
|
||
size_t n_controllers;
|
||
size_t i;
|
||
|
||
if (!cfg) {
|
||
ofproto_set_sflow(br->ofproto, NULL);
|
||
return;
|
||
}
|
||
|
||
memset(&oso, 0, sizeof oso);
|
||
|
||
sset_init(&oso.targets);
|
||
sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
|
||
|
||
oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
|
||
if (cfg->sampling) {
|
||
oso.sampling_rate = *cfg->sampling;
|
||
}
|
||
|
||
oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
|
||
if (cfg->polling) {
|
||
oso.polling_interval = *cfg->polling;
|
||
}
|
||
|
||
oso.header_len = SFL_DEFAULT_HEADER_SIZE;
|
||
if (cfg->header) {
|
||
oso.header_len = *cfg->header;
|
||
}
|
||
|
||
oso.sub_id = (*sflow_bridge_number)++;
|
||
oso.agent_device = cfg->agent;
|
||
|
||
oso.control_ip = NULL;
|
||
n_controllers = bridge_get_controllers(br, &controllers);
|
||
for (i = 0; i < n_controllers; i++) {
|
||
if (controllers[i]->local_ip) {
|
||
oso.control_ip = controllers[i]->local_ip;
|
||
break;
|
||
}
|
||
}
|
||
ofproto_set_sflow(br->ofproto, &oso);
|
||
|
||
sset_destroy(&oso.targets);
|
||
}
|
||
|
||
static void
|
||
port_configure_stp(const struct ofproto *ofproto, struct port *port,
|
||
struct ofproto_port_stp_settings *port_s,
|
||
int *port_num_counter, unsigned long *port_num_bitmap)
|
||
{
|
||
const char *config_str;
|
||
struct iface *iface;
|
||
|
||
if (!smap_get_bool(&port->cfg->other_config, "stp-enable", true)) {
|
||
port_s->enable = false;
|
||
return;
|
||
} else {
|
||
port_s->enable = true;
|
||
}
|
||
|
||
/* STP over bonds is not supported. */
|
||
if (!list_is_singleton(&port->ifaces)) {
|
||
VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
|
||
port->name);
|
||
port_s->enable = false;
|
||
return;
|
||
}
|
||
|
||
iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
|
||
|
||
/* Internal ports shouldn't participate in spanning tree, so
|
||
* skip them. */
|
||
if (!strcmp(iface->type, "internal")) {
|
||
VLOG_DBG("port %s: disable STP on internal ports", port->name);
|
||
port_s->enable = false;
|
||
return;
|
||
}
|
||
|
||
/* STP on mirror output ports is not supported. */
|
||
if (ofproto_is_mirror_output_bundle(ofproto, port)) {
|
||
VLOG_DBG("port %s: disable STP on mirror ports", port->name);
|
||
port_s->enable = false;
|
||
return;
|
||
}
|
||
|
||
config_str = smap_get(&port->cfg->other_config, "stp-port-num");
|
||
if (config_str) {
|
||
unsigned long int port_num = strtoul(config_str, NULL, 0);
|
||
int port_idx = port_num - 1;
|
||
|
||
if (port_num < 1 || port_num > STP_MAX_PORTS) {
|
||
VLOG_ERR("port %s: invalid stp-port-num", port->name);
|
||
port_s->enable = false;
|
||
return;
|
||
}
|
||
|
||
if (bitmap_is_set(port_num_bitmap, port_idx)) {
|
||
VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
|
||
port->name, port_num);
|
||
port_s->enable = false;
|
||
return;
|
||
}
|
||
bitmap_set1(port_num_bitmap, port_idx);
|
||
port_s->port_num = port_idx;
|
||
} else {
|
||
if (*port_num_counter >= STP_MAX_PORTS) {
|
||
VLOG_ERR("port %s: too many STP ports, disabling", port->name);
|
||
port_s->enable = false;
|
||
return;
|
||
}
|
||
|
||
port_s->port_num = (*port_num_counter)++;
|
||
}
|
||
|
||
config_str = smap_get(&port->cfg->other_config, "stp-path-cost");
|
||
if (config_str) {
|
||
port_s->path_cost = strtoul(config_str, NULL, 10);
|
||
} else {
|
||
enum netdev_features current;
|
||
unsigned int mbps;
|
||
|
||
netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
|
||
mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
|
||
port_s->path_cost = stp_convert_speed_to_cost(mbps);
|
||
}
|
||
|
||
config_str = smap_get(&port->cfg->other_config, "stp-port-priority");
|
||
if (config_str) {
|
||
port_s->priority = strtoul(config_str, NULL, 0);
|
||
} else {
|
||
port_s->priority = STP_DEFAULT_PORT_PRIORITY;
|
||
}
|
||
}
|
||
|
||
/* Set spanning tree configuration on 'br'. */
|
||
static void
|
||
bridge_configure_stp(struct bridge *br)
|
||
{
|
||
if (!br->cfg->stp_enable) {
|
||
ofproto_set_stp(br->ofproto, NULL);
|
||
} else {
|
||
struct ofproto_stp_settings br_s;
|
||
const char *config_str;
|
||
struct port *port;
|
||
int port_num_counter;
|
||
unsigned long *port_num_bitmap;
|
||
|
||
config_str = smap_get(&br->cfg->other_config, "stp-system-id");
|
||
if (config_str) {
|
||
uint8_t ea[ETH_ADDR_LEN];
|
||
|
||
if (eth_addr_from_string(config_str, ea)) {
|
||
br_s.system_id = eth_addr_to_uint64(ea);
|
||
} else {
|
||
br_s.system_id = eth_addr_to_uint64(br->ea);
|
||
VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
|
||
"to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
|
||
}
|
||
} else {
|
||
br_s.system_id = eth_addr_to_uint64(br->ea);
|
||
}
|
||
|
||
config_str = smap_get(&br->cfg->other_config, "stp-priority");
|
||
if (config_str) {
|
||
br_s.priority = strtoul(config_str, NULL, 0);
|
||
} else {
|
||
br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
|
||
}
|
||
|
||
config_str = smap_get(&br->cfg->other_config, "stp-hello-time");
|
||
if (config_str) {
|
||
br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
|
||
} else {
|
||
br_s.hello_time = STP_DEFAULT_HELLO_TIME;
|
||
}
|
||
|
||
config_str = smap_get(&br->cfg->other_config, "stp-max-age");
|
||
if (config_str) {
|
||
br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
|
||
} else {
|
||
br_s.max_age = STP_DEFAULT_MAX_AGE;
|
||
}
|
||
|
||
config_str = smap_get(&br->cfg->other_config, "stp-forward-delay");
|
||
if (config_str) {
|
||
br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
|
||
} else {
|
||
br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
|
||
}
|
||
|
||
/* Configure STP on the bridge. */
|
||
if (ofproto_set_stp(br->ofproto, &br_s)) {
|
||
VLOG_ERR("bridge %s: could not enable STP", br->name);
|
||
return;
|
||
}
|
||
|
||
/* Users must either set the port number with the "stp-port-num"
|
||
* configuration on all ports or none. If manual configuration
|
||
* is not done, then we allocate them sequentially. */
|
||
port_num_counter = 0;
|
||
port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
|
||
HMAP_FOR_EACH (port, hmap_node, &br->ports) {
|
||
struct ofproto_port_stp_settings port_s;
|
||
struct iface *iface;
|
||
|
||
port_configure_stp(br->ofproto, port, &port_s,
|
||
&port_num_counter, port_num_bitmap);
|
||
|
||
/* As bonds are not supported, just apply configuration to
|
||
* all interfaces. */
|
||
LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
|
||
if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
|
||
&port_s)) {
|
||
VLOG_ERR("port %s: could not enable STP", port->name);
|
||
continue;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
|
||
&& port_num_counter) {
|
||
VLOG_ERR("bridge %s: must manually configure all STP port "
|
||
"IDs or none, disabling", br->name);
|
||
ofproto_set_stp(br->ofproto, NULL);
|
||
}
|
||
bitmap_free(port_num_bitmap);
|
||
}
|
||
}
|
||
|
||
static bool
|
||
bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
|
||
{
|
||
const struct port *port = port_lookup(br, name);
|
||
return port && port_is_bond_fake_iface(port);
|
||
}
|
||
|
||
static bool
|
||
port_is_bond_fake_iface(const struct port *port)
|
||
{
|
||
return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
|
||
}
|
||
|
||
static void
|
||
add_del_bridges(const struct ovsrec_open_vswitch *cfg)
|
||
{
|
||
struct bridge *br, *next;
|
||
struct shash new_br;
|
||
size_t i;
|
||
|
||
/* Collect new bridges' names and types. */
|
||
shash_init(&new_br);
|
||
for (i = 0; i < cfg->n_bridges; i++) {
|
||
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
|
||
const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
|
||
|
||
if (strchr(br_cfg->name, '/')) {
|
||
/* Prevent remote ovsdb-server users from accessing arbitrary
|
||
* directories, e.g. consider a bridge named "../../../etc/". */
|
||
VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
|
||
br_cfg->name);
|
||
} else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
|
||
VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
|
||
}
|
||
}
|
||
|
||
/* Get rid of deleted bridges or those whose types have changed.
|
||
* Update 'cfg' of bridges that still exist. */
|
||
HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
|
||
br->cfg = shash_find_data(&new_br, br->name);
|
||
if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
|
||
br->cfg->datapath_type))) {
|
||
bridge_destroy(br);
|
||
}
|
||
}
|
||
|
||
/* Add new bridges. */
|
||
for (i = 0; i < cfg->n_bridges; i++) {
|
||
const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
|
||
struct bridge *br = bridge_lookup(br_cfg->name);
|
||
if (!br) {
|
||
bridge_create(br_cfg);
|
||
}
|
||
}
|
||
|
||
shash_destroy(&new_br);
|
||
}
|
||
|
||
static void
|
||
iface_set_ofp_port(struct iface *iface, int ofp_port)
|
||
{
|
||
struct bridge *br = iface->port->bridge;
|
||
|
||
ovs_assert(iface->ofp_port < 0 && ofp_port >= 0);
|
||
iface->ofp_port = ofp_port;
|
||
hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
|
||
iface_set_ofport(iface->cfg, ofp_port);
|
||
}
|
||
|
||
/* Configures 'netdev' based on the "options" column in 'iface_cfg'.
|
||
* Returns 0 if successful, otherwise a positive errno value. */
|
||
static int
|
||
iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
|
||
struct netdev *netdev)
|
||
{
|
||
int error;
|
||
|
||
error = netdev_set_config(netdev, &iface_cfg->options);
|
||
if (error) {
|
||
VLOG_WARN("could not configure network device %s (%s)",
|
||
iface_cfg->name, strerror(error));
|
||
}
|
||
return error;
|
||
}
|
||
|
||
/* This function determines whether 'ofproto_port', which is attached to
|
||
* br->ofproto's datapath, is one that we want in 'br'.
|
||
*
|
||
* If it is, it returns true, after creating an iface (if necessary),
|
||
* configuring the iface's netdev according to the iface's options, and setting
|
||
* iface's ofp_port member to 'ofproto_port->ofp_port'.
|
||
*
|
||
* If, on the other hand, 'port' should be removed, it returns false. The
|
||
* caller should later detach the port from br->ofproto. */
|
||
static bool
|
||
bridge_refresh_one_ofp_port(struct bridge *br,
|
||
const struct ofproto_port *ofproto_port)
|
||
{
|
||
const char *name = ofproto_port->name;
|
||
const char *type = ofproto_port->type;
|
||
uint16_t ofp_port = ofproto_port->ofp_port;
|
||
|
||
struct iface *iface = iface_lookup(br, name);
|
||
if (iface) {
|
||
/* Check that the name-to-number mapping is one-to-one. */
|
||
if (iface->ofp_port >= 0) {
|
||
VLOG_WARN("bridge %s: interface %s reported twice",
|
||
br->name, name);
|
||
return false;
|
||
} else if (iface_from_ofp_port(br, ofp_port)) {
|
||
VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
|
||
br->name, ofp_port);
|
||
return false;
|
||
}
|
||
|
||
/* There's a configured interface named 'name'. */
|
||
if (strcmp(type, iface->type)
|
||
|| iface_set_netdev_config(iface->cfg, iface->netdev)) {
|
||
/* It's the wrong type, or it's the right type but can't be
|
||
* configured as the user requested, so we must destroy it. */
|
||
return false;
|
||
} else {
|
||
/* It's the right type and configured correctly. Keep it. */
|
||
iface_set_ofp_port(iface, ofp_port);
|
||
return true;
|
||
}
|
||
} else if (bridge_has_bond_fake_iface(br, name)
|
||
&& !strcmp(type, "internal")) {
|
||
/* It's a bond fake iface. Keep it. */
|
||
return true;
|
||
} else {
|
||
/* There's no configured interface named 'name', but there might be an
|
||
* interface of that name queued to be created.
|
||
*
|
||
* If there is, and it has the correct type, then try to configure it
|
||
* and add it. If that's successful, we'll keep it. Otherwise, we'll
|
||
* delete it and later try to re-add it. */
|
||
struct if_cfg *if_cfg = if_cfg_lookup(br, name);
|
||
return (if_cfg
|
||
&& !strcmp(type, iface_get_type(if_cfg->cfg, br->cfg))
|
||
&& iface_create(br, if_cfg, ofp_port));
|
||
}
|
||
}
|
||
|
||
/* Update bridges "if_cfg"s, "struct port"s, and "struct iface"s to be
|
||
* consistent with the ofp_ports in "br->ofproto". */
|
||
static void
|
||
bridge_refresh_ofp_port(struct bridge *br)
|
||
{
|
||
struct ofproto_port_dump dump;
|
||
struct ofproto_port ofproto_port;
|
||
struct port *port, *port_next;
|
||
|
||
/* Clear each "struct iface"s ofp_port so we can get its correct value. */
|
||
hmap_clear(&br->ifaces);
|
||
HMAP_FOR_EACH (port, hmap_node, &br->ports) {
|
||
struct iface *iface;
|
||
|
||
LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
|
||
iface->ofp_port = -1;
|
||
}
|
||
}
|
||
|
||
/* Obtain the correct "ofp_port"s from ofproto. Find any if_cfg's which
|
||
* already exist in the datapath and promote them to full fledged "struct
|
||
* iface"s. Mark ports in the datapath which don't belong as garbage. */
|
||
OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
|
||
if (!bridge_refresh_one_ofp_port(br, &ofproto_port)) {
|
||
struct ofpp_garbage *garbage = xmalloc(sizeof *garbage);
|
||
garbage->ofp_port = ofproto_port.ofp_port;
|
||
list_push_front(&br->ofpp_garbage, &garbage->list_node);
|
||
}
|
||
}
|
||
|
||
/* Some ifaces may not have "ofp_port"s in ofproto and therefore don't
|
||
* deserve to have "struct iface"s. Demote these to "if_cfg"s so that
|
||
* later they can be added to ofproto. */
|
||
HMAP_FOR_EACH_SAFE (port, port_next, hmap_node, &br->ports) {
|
||
struct iface *iface, *iface_next;
|
||
|
||
LIST_FOR_EACH_SAFE (iface, iface_next, port_elem, &port->ifaces) {
|
||
if (iface->ofp_port < 0) {
|
||
bridge_queue_if_cfg(br, iface->cfg, port->cfg);
|
||
iface_destroy(iface);
|
||
}
|
||
}
|
||
|
||
if (list_is_empty(&port->ifaces)) {
|
||
port_destroy(port);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Opens a network device for 'if_cfg' and configures it. If '*ofp_portp'
|
||
* is negative, adds the network device to br->ofproto and stores the OpenFlow
|
||
* port number in '*ofp_portp'; otherwise leaves br->ofproto and '*ofp_portp'
|
||
* untouched.
|
||
*
|
||
* If successful, returns 0 and stores the network device in '*netdevp'. On
|
||
* failure, returns a positive errno value and stores NULL in '*netdevp'. */
|
||
static int
|
||
iface_do_create(const struct bridge *br,
|
||
const struct if_cfg *if_cfg,
|
||
int *ofp_portp, struct netdev **netdevp)
|
||
{
|
||
const struct ovsrec_interface *iface_cfg = if_cfg->cfg;
|
||
const struct ovsrec_port *port_cfg = if_cfg->parent;
|
||
struct netdev *netdev;
|
||
int error;
|
||
|
||
error = netdev_open(iface_cfg->name,
|
||
iface_get_type(iface_cfg, br->cfg), &netdev);
|
||
if (error) {
|
||
VLOG_WARN("could not open network device %s (%s)",
|
||
iface_cfg->name, strerror(error));
|
||
goto error;
|
||
}
|
||
|
||
error = iface_set_netdev_config(iface_cfg, netdev);
|
||
if (error) {
|
||
goto error;
|
||
}
|
||
|
||
if (*ofp_portp < 0) {
|
||
uint16_t ofp_port = if_cfg->ofport;
|
||
|
||
error = ofproto_port_add(br->ofproto, netdev, &ofp_port);
|
||
if (error) {
|
||
goto error;
|
||
}
|
||
*ofp_portp = ofp_port;
|
||
|
||
VLOG_INFO("bridge %s: added interface %s on port %d",
|
||
br->name, iface_cfg->name, *ofp_portp);
|
||
} else {
|
||
VLOG_DBG("bridge %s: interface %s is on port %d",
|
||
br->name, iface_cfg->name, *ofp_portp);
|
||
}
|
||
|
||
if ((port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter"))
|
||
|| iface_is_internal(iface_cfg, br->cfg)) {
|
||
netdev_turn_flags_on(netdev, NETDEV_UP, true);
|
||
}
|
||
|
||
*netdevp = netdev;
|
||
return 0;
|
||
|
||
error:
|
||
*netdevp = NULL;
|
||
netdev_close(netdev);
|
||
return error;
|
||
}
|
||
|
||
/* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
|
||
* port number 'ofp_port'. If ofp_port is negative, an OpenFlow port is
|
||
* automatically allocated for the iface. Takes ownership of and
|
||
* deallocates 'if_cfg'.
|
||
*
|
||
* Return true if an iface is successfully created, false otherwise. */
|
||
static bool
|
||
iface_create(struct bridge *br, struct if_cfg *if_cfg, int ofp_port)
|
||
{
|
||
const struct ovsrec_interface *iface_cfg = if_cfg->cfg;
|
||
const struct ovsrec_port *port_cfg = if_cfg->parent;
|
||
|
||
struct netdev *netdev;
|
||
struct iface *iface;
|
||
struct port *port;
|
||
int error;
|
||
bool ok = true;
|
||
|
||
/* Do the bits that can fail up front.
|
||
*
|
||
* It's a bit dangerous to call bridge_run_fast() here as ofproto's
|
||
* internal datastructures may not be consistent. Eventually, when port
|
||
* additions and deletions are cheaper, these calls should be removed. */
|
||
bridge_run_fast();
|
||
ovs_assert(!iface_lookup(br, iface_cfg->name));
|
||
error = iface_do_create(br, if_cfg, &ofp_port, &netdev);
|
||
bridge_run_fast();
|
||
if (error) {
|
||
iface_set_ofport(iface_cfg, -1);
|
||
iface_clear_db_record(iface_cfg);
|
||
ok = false;
|
||
goto done;
|
||
}
|
||
|
||
/* Get or create the port structure. */
|
||
port = port_lookup(br, port_cfg->name);
|
||
if (!port) {
|
||
port = port_create(br, port_cfg);
|
||
}
|
||
|
||
/* Create the iface structure. */
|
||
iface = xzalloc(sizeof *iface);
|
||
list_push_back(&port->ifaces, &iface->port_elem);
|
||
hmap_insert(&br->iface_by_name, &iface->name_node,
|
||
hash_string(iface_cfg->name, 0));
|
||
iface->port = port;
|
||
iface->name = xstrdup(iface_cfg->name);
|
||
iface->ofp_port = -1;
|
||
iface->netdev = netdev;
|
||
iface->type = iface_get_type(iface_cfg, br->cfg);
|
||
iface->cfg = iface_cfg;
|
||
|
||
iface_set_ofp_port(iface, ofp_port);
|
||
|
||
/* Populate initial status in database. */
|
||
iface_refresh_stats(iface);
|
||
iface_refresh_status(iface);
|
||
|
||
/* Add bond fake iface if necessary. */
|
||
if (port_is_bond_fake_iface(port)) {
|
||
struct ofproto_port ofproto_port;
|
||
|
||
if (ofproto_port_query_by_name(br->ofproto, port->name,
|
||
&ofproto_port)) {
|
||
struct netdev *netdev;
|
||
int error;
|
||
|
||
error = netdev_open(port->name, "internal", &netdev);
|
||
if (!error) {
|
||
uint16_t ofp_port = if_cfg->ofport;
|
||
|
||
ofproto_port_add(br->ofproto, netdev, &ofp_port);
|
||
netdev_close(netdev);
|
||
} else {
|
||
VLOG_WARN("could not open network device %s (%s)",
|
||
port->name, strerror(error));
|
||
}
|
||
} else {
|
||
/* Already exists, nothing to do. */
|
||
ofproto_port_destroy(&ofproto_port);
|
||
}
|
||
}
|
||
|
||
done:
|
||
hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
|
||
free(if_cfg);
|
||
|
||
return ok;
|
||
}
|
||
|
||
/* Set Flow eviction threshold */
|
||
static void
|
||
bridge_configure_flow_eviction_threshold(struct bridge *br)
|
||
{
|
||
const char *threshold_str;
|
||
unsigned threshold;
|
||
|
||
threshold_str = smap_get(&br->cfg->other_config,
|
||
"flow-eviction-threshold");
|
||
if (threshold_str) {
|
||
threshold = strtoul(threshold_str, NULL, 10);
|
||
} else {
|
||
threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT;
|
||
}
|
||
ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
|
||
}
|
||
|
||
/* Set forward BPDU option. */
|
||
static void
|
||
bridge_configure_forward_bpdu(struct bridge *br)
|
||
{
|
||
ofproto_set_forward_bpdu(br->ofproto,
|
||
smap_get_bool(&br->cfg->other_config,
|
||
"forward-bpdu",
|
||
false));
|
||
}
|
||
|
||
/* Set MAC learning table configuration for 'br'. */
|
||
static void
|
||
bridge_configure_mac_table(struct bridge *br)
|
||
{
|
||
const char *idle_time_str;
|
||
int idle_time;
|
||
|
||
const char *mac_table_size_str;
|
||
int mac_table_size;
|
||
|
||
idle_time_str = smap_get(&br->cfg->other_config, "mac-aging-time");
|
||
idle_time = (idle_time_str && atoi(idle_time_str)
|
||
? atoi(idle_time_str)
|
||
: MAC_ENTRY_DEFAULT_IDLE_TIME);
|
||
|
||
mac_table_size_str = smap_get(&br->cfg->other_config, "mac-table-size");
|
||
mac_table_size = (mac_table_size_str && atoi(mac_table_size_str)
|
||
? atoi(mac_table_size_str)
|
||
: MAC_DEFAULT_MAX);
|
||
|
||
ofproto_set_mac_table_config(br->ofproto, idle_time, mac_table_size);
|
||
}
|
||
|
||
static void
|
||
bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
|
||
struct iface **hw_addr_iface)
|
||
{
|
||
struct hmapx mirror_output_ports;
|
||
const char *hwaddr;
|
||
struct port *port;
|
||
bool found_addr = false;
|
||
int error;
|
||
int i;
|
||
|
||
*hw_addr_iface = NULL;
|
||
|
||
/* Did the user request a particular MAC? */
|
||
hwaddr = smap_get(&br->cfg->other_config, "hwaddr");
|
||
if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
|
||
if (eth_addr_is_multicast(ea)) {
|
||
VLOG_ERR("bridge %s: cannot set MAC address to multicast "
|
||
"address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
|
||
} else if (eth_addr_is_zero(ea)) {
|
||
VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
|
||
} else {
|
||
return;
|
||
}
|
||
}
|
||
|
||
/* Mirror output ports don't participate in picking the local hardware
|
||
* address. ofproto can't help us find out whether a given port is a
|
||
* mirror output because we haven't configured mirrors yet, so we need to
|
||
* accumulate them ourselves. */
|
||
hmapx_init(&mirror_output_ports);
|
||
for (i = 0; i < br->cfg->n_mirrors; i++) {
|
||
struct ovsrec_mirror *m = br->cfg->mirrors[i];
|
||
if (m->output_port) {
|
||
hmapx_add(&mirror_output_ports, m->output_port);
|
||
}
|
||
}
|
||
|
||
/* Otherwise choose the minimum non-local MAC address among all of the
|
||
* interfaces. */
|
||
HMAP_FOR_EACH (port, hmap_node, &br->ports) {
|
||
uint8_t iface_ea[ETH_ADDR_LEN];
|
||
struct iface *candidate;
|
||
struct iface *iface;
|
||
|
||
/* Mirror output ports don't participate. */
|
||
if (hmapx_contains(&mirror_output_ports, port->cfg)) {
|
||
continue;
|
||
}
|
||
|
||
/* Choose the MAC address to represent the port. */
|
||
iface = NULL;
|
||
if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
|
||
/* Find the interface with this Ethernet address (if any) so that
|
||
* we can provide the correct devname to the caller. */
|
||
LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
|
||
uint8_t candidate_ea[ETH_ADDR_LEN];
|
||
if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
|
||
&& eth_addr_equals(iface_ea, candidate_ea)) {
|
||
iface = candidate;
|
||
}
|
||
}
|
||
} else {
|
||
/* Choose the interface whose MAC address will represent the port.
|
||
* The Linux kernel bonding code always chooses the MAC address of
|
||
* the first slave added to a bond, and the Fedora networking
|
||
* scripts always add slaves to a bond in alphabetical order, so
|
||
* for compatibility we choose the interface with the name that is
|
||
* first in alphabetical order. */
|
||
LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
|
||
if (!iface || strcmp(candidate->name, iface->name) < 0) {
|
||
iface = candidate;
|
||
}
|
||
}
|
||
|
||
/* The local port doesn't count (since we're trying to choose its
|
||
* MAC address anyway). */
|
||
if (iface->ofp_port == OFPP_LOCAL) {
|
||
continue;
|
||
}
|
||
|
||
/* Grab MAC. */
|
||
error = netdev_get_etheraddr(iface->netdev, iface_ea);
|
||
if (error) {
|
||
continue;
|
||
}
|
||
}
|
||
|
||
/* Compare against our current choice. */
|
||
if (!eth_addr_is_multicast(iface_ea) &&
|
||
!eth_addr_is_local(iface_ea) &&
|
||
!eth_addr_is_reserved(iface_ea) &&
|
||
!eth_addr_is_zero(iface_ea) &&
|
||
(!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
|
||
{
|
||
memcpy(ea, iface_ea, ETH_ADDR_LEN);
|
||
*hw_addr_iface = iface;
|
||
found_addr = true;
|
||
}
|
||
}
|
||
|
||
if (!found_addr) {
|
||
memcpy(ea, br->default_ea, ETH_ADDR_LEN);
|
||
*hw_addr_iface = NULL;
|
||
}
|
||
|
||
hmapx_destroy(&mirror_output_ports);
|
||
}
|
||
|
||
/* 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
|
||
* 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],
|
||
struct iface *hw_addr_iface)
|
||
{
|
||
/*
|
||
* The procedure for choosing a bridge MAC address will, in the most
|
||
* ordinary case, also choose a unique MAC that we can use as a datapath
|
||
* ID. In some special cases, though, multiple bridges will end up with
|
||
* the same MAC address. This is OK for the bridges, but it will confuse
|
||
* the OpenFlow controller, because each datapath needs a unique datapath
|
||
* ID.
|
||
*
|
||
* Datapath IDs must be unique. It is also very desirable that they be
|
||
* stable from one run to the next, so that policy set on a datapath
|
||
* "sticks".
|
||
*/
|
||
const char *datapath_id;
|
||
uint64_t dpid;
|
||
|
||
datapath_id = smap_get(&br->cfg->other_config, "datapath-id");
|
||
if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
|
||
return dpid;
|
||
}
|
||
|
||
if (!hw_addr_iface) {
|
||
/*
|
||
* A purely internal bridge, that is, one that has no non-virtual
|
||
* network devices on it at all, is difficult because it has no
|
||
* natural unique identifier at all.
|
||
*
|
||
* When the host is a XenServer, we handle this case by hashing the
|
||
* host's UUID with the name of the bridge. Names of bridges are
|
||
* persistent across XenServer reboots, although they can be reused if
|
||
* an internal network is destroyed and then a new one is later
|
||
* created, so this is fairly effective.
|
||
*
|
||
* When the host is not a XenServer, we punt by using a random MAC
|
||
* address on each run.
|
||
*/
|
||
const char *host_uuid = xenserver_get_host_uuid();
|
||
if (host_uuid) {
|
||
char *combined = xasprintf("%s,%s", host_uuid, br->name);
|
||
dpid = dpid_from_hash(combined, strlen(combined));
|
||
free(combined);
|
||
return dpid;
|
||
}
|
||
}
|
||
|
||
return eth_addr_to_uint64(bridge_ea);
|
||
}
|
||
|
||
static uint64_t
|
||
dpid_from_hash(const void *data, size_t n)
|
||
{
|
||
uint8_t hash[SHA1_DIGEST_SIZE];
|
||
|
||
BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
|
||
sha1_bytes(data, n, hash);
|
||
eth_addr_mark_random(hash);
|
||
return eth_addr_to_uint64(hash);
|
||
}
|
||
|
||
static void
|
||
iface_refresh_status(struct iface *iface)
|
||
{
|
||
struct smap smap;
|
||
|
||
enum netdev_features current;
|
||
int64_t bps;
|
||
int mtu;
|
||
int64_t mtu_64;
|
||
int error;
|
||
|
||
if (iface_is_synthetic(iface)) {
|
||
return;
|
||
}
|
||
|
||
smap_init(&smap);
|
||
|
||
if (!netdev_get_status(iface->netdev, &smap)) {
|
||
ovsrec_interface_set_status(iface->cfg, &smap);
|
||
} else {
|
||
ovsrec_interface_set_status(iface->cfg, NULL);
|
||
}
|
||
|
||
smap_destroy(&smap);
|
||
|
||
error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
|
||
bps = !error ? netdev_features_to_bps(current, 0) : 0;
|
||
if (bps) {
|
||
ovsrec_interface_set_duplex(iface->cfg,
|
||
netdev_features_is_full_duplex(current)
|
||
? "full" : "half");
|
||
ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
|
||
}
|
||
else {
|
||
ovsrec_interface_set_duplex(iface->cfg, NULL);
|
||
ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
|
||
}
|
||
|
||
error = netdev_get_mtu(iface->netdev, &mtu);
|
||
if (!error) {
|
||
mtu_64 = mtu;
|
||
ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
|
||
}
|
||
else {
|
||
ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
|
||
}
|
||
}
|
||
|
||
/* Writes 'iface''s CFM statistics to the database. 'iface' must not be
|
||
* synthetic. */
|
||
static void
|
||
iface_refresh_cfm_stats(struct iface *iface)
|
||
{
|
||
const struct ovsrec_interface *cfg = iface->cfg;
|
||
int fault, opup, error;
|
||
const uint64_t *rmps;
|
||
size_t n_rmps;
|
||
int health;
|
||
|
||
fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
|
||
iface->ofp_port);
|
||
if (fault >= 0) {
|
||
const char *reasons[CFM_FAULT_N_REASONS];
|
||
bool fault_bool = fault;
|
||
size_t i, j;
|
||
|
||
j = 0;
|
||
for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
|
||
int reason = 1 << i;
|
||
if (fault & reason) {
|
||
reasons[j++] = cfm_fault_reason_to_str(reason);
|
||
}
|
||
}
|
||
|
||
ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
|
||
ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
|
||
} else {
|
||
ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
|
||
ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
|
||
}
|
||
|
||
opup = ofproto_port_get_cfm_opup(iface->port->bridge->ofproto,
|
||
iface->ofp_port);
|
||
if (opup >= 0) {
|
||
ovsrec_interface_set_cfm_remote_opstate(cfg, opup ? "up" : "down");
|
||
} else {
|
||
ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
|
||
}
|
||
|
||
error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
|
||
iface->ofp_port, &rmps, &n_rmps);
|
||
if (error >= 0) {
|
||
ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
|
||
n_rmps);
|
||
} else {
|
||
ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
|
||
}
|
||
|
||
health = ofproto_port_get_cfm_health(iface->port->bridge->ofproto,
|
||
iface->ofp_port);
|
||
if (health >= 0) {
|
||
int64_t cfm_health = health;
|
||
ovsrec_interface_set_cfm_health(cfg, &cfm_health, 1);
|
||
} else {
|
||
ovsrec_interface_set_cfm_health(cfg, NULL, 0);
|
||
}
|
||
}
|
||
|
||
static void
|
||
iface_refresh_stats(struct iface *iface)
|
||
{
|
||
#define IFACE_STATS \
|
||
IFACE_STAT(rx_packets, "rx_packets") \
|
||
IFACE_STAT(tx_packets, "tx_packets") \
|
||
IFACE_STAT(rx_bytes, "rx_bytes") \
|
||
IFACE_STAT(tx_bytes, "tx_bytes") \
|
||
IFACE_STAT(rx_dropped, "rx_dropped") \
|
||
IFACE_STAT(tx_dropped, "tx_dropped") \
|
||
IFACE_STAT(rx_errors, "rx_errors") \
|
||
IFACE_STAT(tx_errors, "tx_errors") \
|
||
IFACE_STAT(rx_frame_errors, "rx_frame_err") \
|
||
IFACE_STAT(rx_over_errors, "rx_over_err") \
|
||
IFACE_STAT(rx_crc_errors, "rx_crc_err") \
|
||
IFACE_STAT(collisions, "collisions")
|
||
|
||
#define IFACE_STAT(MEMBER, NAME) NAME,
|
||
static char *keys[] = { IFACE_STATS };
|
||
#undef IFACE_STAT
|
||
int64_t values[ARRAY_SIZE(keys)];
|
||
int i;
|
||
|
||
struct netdev_stats stats;
|
||
|
||
if (iface_is_synthetic(iface)) {
|
||
return;
|
||
}
|
||
|
||
/* Intentionally ignore return value, since errors will set 'stats' to
|
||
* all-1s, and we will deal with that correctly below. */
|
||
netdev_get_stats(iface->netdev, &stats);
|
||
|
||
/* Copy statistics into values[] array. */
|
||
i = 0;
|
||
#define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
|
||
IFACE_STATS;
|
||
#undef IFACE_STAT
|
||
ovs_assert(i == ARRAY_SIZE(keys));
|
||
|
||
ovsrec_interface_set_statistics(iface->cfg, keys, values,
|
||
ARRAY_SIZE(keys));
|
||
#undef IFACE_STATS
|
||
}
|
||
|
||
static void
|
||
br_refresh_stp_status(struct bridge *br)
|
||
{
|
||
struct smap smap = SMAP_INITIALIZER(&smap);
|
||
struct ofproto *ofproto = br->ofproto;
|
||
struct ofproto_stp_status status;
|
||
|
||
if (ofproto_get_stp_status(ofproto, &status)) {
|
||
return;
|
||
}
|
||
|
||
if (!status.enabled) {
|
||
ovsrec_bridge_set_status(br->cfg, NULL);
|
||
return;
|
||
}
|
||
|
||
smap_add_format(&smap, "stp_bridge_id", STP_ID_FMT,
|
||
STP_ID_ARGS(status.bridge_id));
|
||
smap_add_format(&smap, "stp_designated_root", STP_ID_FMT,
|
||
STP_ID_ARGS(status.designated_root));
|
||
smap_add_format(&smap, "stp_root_path_cost", "%d", status.root_path_cost);
|
||
|
||
ovsrec_bridge_set_status(br->cfg, &smap);
|
||
smap_destroy(&smap);
|
||
}
|
||
|
||
static void
|
||
port_refresh_stp_status(struct port *port)
|
||
{
|
||
struct ofproto *ofproto = port->bridge->ofproto;
|
||
struct iface *iface;
|
||
struct ofproto_port_stp_status status;
|
||
char *keys[3];
|
||
int64_t int_values[3];
|
||
struct smap smap;
|
||
|
||
if (port_is_synthetic(port)) {
|
||
return;
|
||
}
|
||
|
||
/* STP doesn't currently support bonds. */
|
||
if (!list_is_singleton(&port->ifaces)) {
|
||
ovsrec_port_set_status(port->cfg, NULL);
|
||
return;
|
||
}
|
||
|
||
iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
|
||
|
||
if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
|
||
return;
|
||
}
|
||
|
||
if (!status.enabled) {
|
||
ovsrec_port_set_status(port->cfg, NULL);
|
||
ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
|
||
return;
|
||
}
|
||
|
||
/* Set Status column. */
|
||
smap_init(&smap);
|
||
smap_add_format(&smap, "stp_port_id", STP_PORT_ID_FMT, status.port_id);
|
||
smap_add(&smap, "stp_state", stp_state_name(status.state));
|
||
smap_add_format(&smap, "stp_sec_in_state", "%u", status.sec_in_state);
|
||
smap_add(&smap, "stp_role", stp_role_name(status.role));
|
||
ovsrec_port_set_status(port->cfg, &smap);
|
||
smap_destroy(&smap);
|
||
|
||
/* Set Statistics column. */
|
||
keys[0] = "stp_tx_count";
|
||
int_values[0] = status.tx_count;
|
||
keys[1] = "stp_rx_count";
|
||
int_values[1] = status.rx_count;
|
||
keys[2] = "stp_error_count";
|
||
int_values[2] = status.error_count;
|
||
|
||
ovsrec_port_set_statistics(port->cfg, keys, int_values,
|
||
ARRAY_SIZE(int_values));
|
||
}
|
||
|
||
static bool
|
||
enable_system_stats(const struct ovsrec_open_vswitch *cfg)
|
||
{
|
||
return smap_get_bool(&cfg->other_config, "enable-statistics", false);
|
||
}
|
||
|
||
static void
|
||
reconfigure_system_stats(const struct ovsrec_open_vswitch *cfg)
|
||
{
|
||
bool enable = enable_system_stats(cfg);
|
||
|
||
system_stats_enable(enable);
|
||
if (!enable) {
|
||
ovsrec_open_vswitch_set_statistics(cfg, NULL);
|
||
}
|
||
}
|
||
|
||
static void
|
||
run_system_stats(void)
|
||
{
|
||
const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(idl);
|
||
struct smap *stats;
|
||
|
||
stats = system_stats_run();
|
||
if (stats && cfg) {
|
||
struct ovsdb_idl_txn *txn;
|
||
struct ovsdb_datum datum;
|
||
|
||
txn = ovsdb_idl_txn_create(idl);
|
||
ovsdb_datum_from_smap(&datum, stats);
|
||
ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
|
||
&datum);
|
||
ovsdb_idl_txn_commit(txn);
|
||
ovsdb_idl_txn_destroy(txn);
|
||
|
||
free(stats);
|
||
}
|
||
}
|
||
|
||
static inline const char *
|
||
nx_role_to_str(enum nx_role role)
|
||
{
|
||
switch (role) {
|
||
case NX_ROLE_OTHER:
|
||
return "other";
|
||
case NX_ROLE_MASTER:
|
||
return "master";
|
||
case NX_ROLE_SLAVE:
|
||
return "slave";
|
||
default:
|
||
return "*** INVALID ROLE ***";
|
||
}
|
||
}
|
||
|
||
static void
|
||
refresh_controller_status(void)
|
||
{
|
||
struct bridge *br;
|
||
struct shash info;
|
||
const struct ovsrec_controller *cfg;
|
||
|
||
shash_init(&info);
|
||
|
||
/* Accumulate status for controllers on all bridges. */
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
ofproto_get_ofproto_controller_info(br->ofproto, &info);
|
||
}
|
||
|
||
/* Update each controller in the database with current status. */
|
||
OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
|
||
struct ofproto_controller_info *cinfo =
|
||
shash_find_data(&info, cfg->target);
|
||
|
||
if (cinfo) {
|
||
struct smap smap = SMAP_INITIALIZER(&smap);
|
||
const char **values = cinfo->pairs.values;
|
||
const char **keys = cinfo->pairs.keys;
|
||
size_t i;
|
||
|
||
for (i = 0; i < cinfo->pairs.n; i++) {
|
||
smap_add(&smap, keys[i], values[i]);
|
||
}
|
||
|
||
ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
|
||
ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
|
||
ovsrec_controller_set_status(cfg, &smap);
|
||
smap_destroy(&smap);
|
||
} else {
|
||
ovsrec_controller_set_is_connected(cfg, false);
|
||
ovsrec_controller_set_role(cfg, NULL);
|
||
ovsrec_controller_set_status(cfg, NULL);
|
||
}
|
||
}
|
||
|
||
ofproto_free_ofproto_controller_info(&info);
|
||
}
|
||
|
||
static void
|
||
refresh_instant_stats(void)
|
||
{
|
||
static struct ovsdb_idl_txn *txn = NULL;
|
||
|
||
if (!txn) {
|
||
struct bridge *br;
|
||
|
||
txn = ovsdb_idl_txn_create(idl);
|
||
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
struct iface *iface;
|
||
struct port *port;
|
||
|
||
br_refresh_stp_status(br);
|
||
|
||
HMAP_FOR_EACH (port, hmap_node, &br->ports) {
|
||
port_refresh_stp_status(port);
|
||
}
|
||
|
||
HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
|
||
enum netdev_flags flags;
|
||
const char *link_state;
|
||
int64_t link_resets;
|
||
int current, error;
|
||
|
||
if (iface_is_synthetic(iface)) {
|
||
continue;
|
||
}
|
||
|
||
current = ofproto_port_is_lacp_current(br->ofproto,
|
||
iface->ofp_port);
|
||
if (current >= 0) {
|
||
bool bl = current;
|
||
ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
|
||
} else {
|
||
ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
|
||
}
|
||
|
||
error = netdev_get_flags(iface->netdev, &flags);
|
||
if (!error) {
|
||
const char *state = flags & NETDEV_UP ? "up" : "down";
|
||
ovsrec_interface_set_admin_state(iface->cfg, state);
|
||
} else {
|
||
ovsrec_interface_set_admin_state(iface->cfg, NULL);
|
||
}
|
||
|
||
link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
|
||
ovsrec_interface_set_link_state(iface->cfg, link_state);
|
||
|
||
link_resets = netdev_get_carrier_resets(iface->netdev);
|
||
ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
|
||
|
||
iface_refresh_cfm_stats(iface);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
|
||
ovsdb_idl_txn_destroy(txn);
|
||
txn = NULL;
|
||
}
|
||
}
|
||
|
||
/* Performs periodic activity required by bridges that needs to be done with
|
||
* the least possible latency.
|
||
*
|
||
* It makes sense to call this function a couple of times per poll loop, to
|
||
* provide a significant performance boost on some benchmarks with ofprotos
|
||
* that use the ofproto-dpif implementation. */
|
||
void
|
||
bridge_run_fast(void)
|
||
{
|
||
struct sset types;
|
||
const char *type;
|
||
struct bridge *br;
|
||
|
||
sset_init(&types);
|
||
ofproto_enumerate_types(&types);
|
||
SSET_FOR_EACH (type, &types) {
|
||
ofproto_type_run_fast(type);
|
||
}
|
||
sset_destroy(&types);
|
||
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
ofproto_run_fast(br->ofproto);
|
||
}
|
||
}
|
||
|
||
void
|
||
bridge_run(void)
|
||
{
|
||
static struct ovsrec_open_vswitch null_cfg;
|
||
const struct ovsrec_open_vswitch *cfg;
|
||
struct ovsdb_idl_txn *reconf_txn = NULL;
|
||
struct sset types;
|
||
const char *type;
|
||
|
||
bool vlan_splinters_changed;
|
||
struct bridge *br;
|
||
|
||
ovsrec_open_vswitch_init(&null_cfg);
|
||
|
||
/* (Re)configure if necessary. */
|
||
if (!reconfiguring) {
|
||
ovsdb_idl_run(idl);
|
||
|
||
if (ovsdb_idl_is_lock_contended(idl)) {
|
||
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
|
||
struct bridge *br, *next_br;
|
||
|
||
VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
|
||
"disabling this process until it goes away");
|
||
|
||
HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
|
||
bridge_destroy(br);
|
||
}
|
||
return;
|
||
} else if (!ovsdb_idl_has_lock(idl)) {
|
||
return;
|
||
}
|
||
}
|
||
cfg = ovsrec_open_vswitch_first(idl);
|
||
|
||
/* Initialize the ofproto library. This only needs to run once, but
|
||
* it must be done after the configuration is set. If the
|
||
* initialization has already occurred, bridge_init_ofproto()
|
||
* returns immediately. */
|
||
bridge_init_ofproto(cfg);
|
||
|
||
/* Let each datapath type do the work that it needs to do. */
|
||
sset_init(&types);
|
||
ofproto_enumerate_types(&types);
|
||
SSET_FOR_EACH (type, &types) {
|
||
ofproto_type_run(type);
|
||
}
|
||
sset_destroy(&types);
|
||
|
||
/* Let each bridge do the work that it needs to do. */
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
ofproto_run(br->ofproto);
|
||
}
|
||
|
||
/* Re-configure SSL. We do this on every trip through the main loop,
|
||
* instead of just when the database changes, because the contents of the
|
||
* key and certificate files can change without the database changing.
|
||
*
|
||
* We do this before bridge_reconfigure() because that function might
|
||
* initiate SSL connections and thus requires SSL to be configured. */
|
||
if (cfg && cfg->ssl) {
|
||
const struct ovsrec_ssl *ssl = cfg->ssl;
|
||
|
||
stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
|
||
stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
|
||
}
|
||
|
||
if (!reconfiguring) {
|
||
/* If VLAN splinters are in use, then we need to reconfigure if VLAN
|
||
* usage has changed. */
|
||
vlan_splinters_changed = false;
|
||
if (vlan_splinters_enabled_anywhere) {
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
if (ofproto_has_vlan_usage_changed(br->ofproto)) {
|
||
vlan_splinters_changed = true;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
|
||
idl_seqno = ovsdb_idl_get_seqno(idl);
|
||
if (cfg) {
|
||
reconf_txn = ovsdb_idl_txn_create(idl);
|
||
bridge_reconfigure(cfg);
|
||
} else {
|
||
/* We still need to reconfigure to avoid dangling pointers to
|
||
* now-destroyed ovsrec structures inside bridge data. */
|
||
bridge_reconfigure(&null_cfg);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (reconfiguring) {
|
||
if (cfg) {
|
||
if (!reconf_txn) {
|
||
reconf_txn = ovsdb_idl_txn_create(idl);
|
||
}
|
||
if (bridge_reconfigure_continue(cfg)) {
|
||
ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
|
||
}
|
||
} else {
|
||
bridge_reconfigure_continue(&null_cfg);
|
||
}
|
||
}
|
||
|
||
if (reconf_txn) {
|
||
ovsdb_idl_txn_commit(reconf_txn);
|
||
ovsdb_idl_txn_destroy(reconf_txn);
|
||
reconf_txn = NULL;
|
||
}
|
||
|
||
/* Refresh interface and mirror stats if necessary. */
|
||
if (time_msec() >= iface_stats_timer) {
|
||
if (cfg) {
|
||
struct ovsdb_idl_txn *txn;
|
||
|
||
txn = ovsdb_idl_txn_create(idl);
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
struct port *port;
|
||
struct mirror *m;
|
||
|
||
HMAP_FOR_EACH (port, hmap_node, &br->ports) {
|
||
struct iface *iface;
|
||
|
||
LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
|
||
iface_refresh_stats(iface);
|
||
iface_refresh_status(iface);
|
||
}
|
||
}
|
||
|
||
HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
|
||
mirror_refresh_stats(m);
|
||
}
|
||
|
||
}
|
||
refresh_controller_status();
|
||
ovsdb_idl_txn_commit(txn);
|
||
ovsdb_idl_txn_destroy(txn); /* XXX */
|
||
}
|
||
|
||
iface_stats_timer = time_msec() + IFACE_STATS_INTERVAL;
|
||
}
|
||
|
||
run_system_stats();
|
||
refresh_instant_stats();
|
||
}
|
||
|
||
void
|
||
bridge_wait(void)
|
||
{
|
||
struct sset types;
|
||
const char *type;
|
||
|
||
ovsdb_idl_wait(idl);
|
||
|
||
if (reconfiguring) {
|
||
poll_immediate_wake();
|
||
}
|
||
|
||
sset_init(&types);
|
||
ofproto_enumerate_types(&types);
|
||
SSET_FOR_EACH (type, &types) {
|
||
ofproto_type_wait(type);
|
||
}
|
||
sset_destroy(&types);
|
||
|
||
if (!hmap_is_empty(&all_bridges)) {
|
||
struct bridge *br;
|
||
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
ofproto_wait(br->ofproto);
|
||
}
|
||
poll_timer_wait_until(iface_stats_timer);
|
||
}
|
||
|
||
system_stats_wait();
|
||
}
|
||
|
||
/* Adds some memory usage statistics for bridges into 'usage', for use with
|
||
* memory_report(). */
|
||
void
|
||
bridge_get_memory_usage(struct simap *usage)
|
||
{
|
||
struct bridge *br;
|
||
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
ofproto_get_memory_usage(br->ofproto, usage);
|
||
}
|
||
}
|
||
|
||
/* QoS unixctl user interface functions. */
|
||
|
||
struct qos_unixctl_show_cbdata {
|
||
struct ds *ds;
|
||
struct iface *iface;
|
||
};
|
||
|
||
static void
|
||
qos_unixctl_show_cb(unsigned int queue_id,
|
||
const struct smap *details,
|
||
void *aux)
|
||
{
|
||
struct qos_unixctl_show_cbdata *data = aux;
|
||
struct ds *ds = data->ds;
|
||
struct iface *iface = data->iface;
|
||
struct netdev_queue_stats stats;
|
||
struct smap_node *node;
|
||
int error;
|
||
|
||
ds_put_cstr(ds, "\n");
|
||
if (queue_id) {
|
||
ds_put_format(ds, "Queue %u:\n", queue_id);
|
||
} else {
|
||
ds_put_cstr(ds, "Default:\n");
|
||
}
|
||
|
||
SMAP_FOR_EACH (node, details) {
|
||
ds_put_format(ds, "\t%s: %s\n", node->key, node->value);
|
||
}
|
||
|
||
error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
|
||
if (!error) {
|
||
if (stats.tx_packets != UINT64_MAX) {
|
||
ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
|
||
}
|
||
|
||
if (stats.tx_bytes != UINT64_MAX) {
|
||
ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
|
||
}
|
||
|
||
if (stats.tx_errors != UINT64_MAX) {
|
||
ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
|
||
}
|
||
} else {
|
||
ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
|
||
queue_id, strerror(error));
|
||
}
|
||
}
|
||
|
||
static void
|
||
qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
|
||
const char *argv[], void *aux OVS_UNUSED)
|
||
{
|
||
struct ds ds = DS_EMPTY_INITIALIZER;
|
||
struct smap smap = SMAP_INITIALIZER(&smap);
|
||
struct iface *iface;
|
||
const char *type;
|
||
struct smap_node *node;
|
||
struct qos_unixctl_show_cbdata data;
|
||
int error;
|
||
|
||
iface = iface_find(argv[1]);
|
||
if (!iface) {
|
||
unixctl_command_reply_error(conn, "no such interface");
|
||
return;
|
||
}
|
||
|
||
netdev_get_qos(iface->netdev, &type, &smap);
|
||
|
||
if (*type != '\0') {
|
||
ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
|
||
|
||
SMAP_FOR_EACH (node, &smap) {
|
||
ds_put_format(&ds, "%s: %s\n", node->key, node->value);
|
||
}
|
||
|
||
data.ds = &ds;
|
||
data.iface = iface;
|
||
error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
|
||
|
||
if (error) {
|
||
ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
|
||
}
|
||
unixctl_command_reply(conn, ds_cstr(&ds));
|
||
} else {
|
||
ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
|
||
unixctl_command_reply_error(conn, ds_cstr(&ds));
|
||
}
|
||
|
||
smap_destroy(&smap);
|
||
ds_destroy(&ds);
|
||
}
|
||
|
||
/* Bridge reconfiguration functions. */
|
||
static void
|
||
bridge_create(const struct ovsrec_bridge *br_cfg)
|
||
{
|
||
struct bridge *br;
|
||
|
||
ovs_assert(!bridge_lookup(br_cfg->name));
|
||
br = xzalloc(sizeof *br);
|
||
|
||
br->name = xstrdup(br_cfg->name);
|
||
br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
|
||
br->cfg = br_cfg;
|
||
|
||
/* Derive the default Ethernet address from the bridge's UUID. This should
|
||
* be unique and it will be stable between ovs-vswitchd runs. */
|
||
memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
|
||
eth_addr_mark_random(br->default_ea);
|
||
|
||
hmap_init(&br->ports);
|
||
hmap_init(&br->ifaces);
|
||
hmap_init(&br->iface_by_name);
|
||
hmap_init(&br->mirrors);
|
||
|
||
hmap_init(&br->if_cfg_todo);
|
||
list_init(&br->ofpp_garbage);
|
||
|
||
hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
|
||
}
|
||
|
||
static void
|
||
bridge_destroy(struct bridge *br)
|
||
{
|
||
if (br) {
|
||
struct mirror *mirror, *next_mirror;
|
||
struct port *port, *next_port;
|
||
struct if_cfg *if_cfg, *next_if_cfg;
|
||
struct ofpp_garbage *garbage, *next_garbage;
|
||
|
||
HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
|
||
port_destroy(port);
|
||
}
|
||
HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
|
||
mirror_destroy(mirror);
|
||
}
|
||
HMAP_FOR_EACH_SAFE (if_cfg, next_if_cfg, hmap_node, &br->if_cfg_todo) {
|
||
hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
|
||
free(if_cfg);
|
||
}
|
||
LIST_FOR_EACH_SAFE (garbage, next_garbage, list_node,
|
||
&br->ofpp_garbage) {
|
||
list_remove(&garbage->list_node);
|
||
free(garbage);
|
||
}
|
||
|
||
hmap_remove(&all_bridges, &br->node);
|
||
ofproto_destroy(br->ofproto);
|
||
hmap_destroy(&br->ifaces);
|
||
hmap_destroy(&br->ports);
|
||
hmap_destroy(&br->iface_by_name);
|
||
hmap_destroy(&br->mirrors);
|
||
hmap_destroy(&br->if_cfg_todo);
|
||
free(br->name);
|
||
free(br->type);
|
||
free(br);
|
||
}
|
||
}
|
||
|
||
static struct bridge *
|
||
bridge_lookup(const char *name)
|
||
{
|
||
struct bridge *br;
|
||
|
||
HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
|
||
if (!strcmp(br->name, name)) {
|
||
return br;
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/* 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, int argc OVS_UNUSED,
|
||
const char *argv[], void *aux OVS_UNUSED)
|
||
{
|
||
struct bridge *br;
|
||
struct ds results;
|
||
|
||
br = bridge_lookup(argv[1]);
|
||
if (!br) {
|
||
unixctl_command_reply_error(conn, "Unknown bridge");
|
||
return;
|
||
}
|
||
|
||
ds_init(&results);
|
||
ofproto_get_all_flows(br->ofproto, &results);
|
||
|
||
unixctl_command_reply(conn, ds_cstr(&results));
|
||
ds_destroy(&results);
|
||
}
|
||
|
||
/* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
|
||
* connections and reconnect. If BRIDGE is not specified, then all bridges
|
||
* drop their controller connections and reconnect. */
|
||
static void
|
||
bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
|
||
const char *argv[], void *aux OVS_UNUSED)
|
||
{
|
||
struct bridge *br;
|
||
if (argc > 1) {
|
||
br = bridge_lookup(argv[1]);
|
||
if (!br) {
|
||
unixctl_command_reply_error(conn, "Unknown bridge");
|
||
return;
|
||
}
|
||
ofproto_reconnect_controllers(br->ofproto);
|
||
} else {
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
ofproto_reconnect_controllers(br->ofproto);
|
||
}
|
||
}
|
||
unixctl_command_reply(conn, NULL);
|
||
}
|
||
|
||
static size_t
|
||
bridge_get_controllers(const struct bridge *br,
|
||
struct ovsrec_controller ***controllersp)
|
||
{
|
||
struct ovsrec_controller **controllers;
|
||
size_t n_controllers;
|
||
|
||
controllers = br->cfg->controller;
|
||
n_controllers = br->cfg->n_controller;
|
||
|
||
if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
|
||
controllers = NULL;
|
||
n_controllers = 0;
|
||
}
|
||
|
||
if (controllersp) {
|
||
*controllersp = controllers;
|
||
}
|
||
return n_controllers;
|
||
}
|
||
|
||
static void
|
||
bridge_queue_if_cfg(struct bridge *br,
|
||
const struct ovsrec_interface *cfg,
|
||
const struct ovsrec_port *parent)
|
||
{
|
||
struct if_cfg *if_cfg = xmalloc(sizeof *if_cfg);
|
||
|
||
if_cfg->cfg = cfg;
|
||
if_cfg->parent = parent;
|
||
if_cfg->ofport = iface_pick_ofport(cfg);
|
||
hmap_insert(&br->if_cfg_todo, &if_cfg->hmap_node,
|
||
hash_string(if_cfg->cfg->name, 0));
|
||
}
|
||
|
||
/* Deletes "struct port"s and "struct iface"s under 'br' which aren't
|
||
* consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
|
||
* 'br' needs to complete its configuration. */
|
||
static void
|
||
bridge_add_del_ports(struct bridge *br,
|
||
const unsigned long int *splinter_vlans)
|
||
{
|
||
struct shash_node *port_node;
|
||
struct port *port, *next;
|
||
struct shash new_ports;
|
||
size_t i;
|
||
|
||
ovs_assert(hmap_is_empty(&br->if_cfg_todo));
|
||
|
||
/* Collect new ports. */
|
||
shash_init(&new_ports);
|
||
for (i = 0; i < br->cfg->n_ports; i++) {
|
||
const char *name = br->cfg->ports[i]->name;
|
||
if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
|
||
VLOG_WARN("bridge %s: %s specified twice as bridge port",
|
||
br->name, name);
|
||
}
|
||
}
|
||
if (bridge_get_controllers(br, NULL)
|
||
&& !shash_find(&new_ports, br->name)) {
|
||
VLOG_WARN("bridge %s: no port named %s, synthesizing one",
|
||
br->name, br->name);
|
||
|
||
ovsrec_interface_init(&br->synth_local_iface);
|
||
ovsrec_port_init(&br->synth_local_port);
|
||
|
||
br->synth_local_port.interfaces = &br->synth_local_ifacep;
|
||
br->synth_local_port.n_interfaces = 1;
|
||
br->synth_local_port.name = br->name;
|
||
|
||
br->synth_local_iface.name = br->name;
|
||
br->synth_local_iface.type = "internal";
|
||
|
||
br->synth_local_ifacep = &br->synth_local_iface;
|
||
|
||
shash_add(&new_ports, br->name, &br->synth_local_port);
|
||
}
|
||
|
||
if (splinter_vlans) {
|
||
add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
|
||
}
|
||
|
||
/* Get rid of deleted ports.
|
||
* Get rid of deleted interfaces on ports that still exist. */
|
||
HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
|
||
port->cfg = shash_find_data(&new_ports, port->name);
|
||
if (!port->cfg) {
|
||
port_destroy(port);
|
||
} else {
|
||
port_del_ifaces(port);
|
||
}
|
||
}
|
||
|
||
/* Update iface->cfg and iface->type in interfaces that still exist.
|
||
* Add new interfaces to creation queue. */
|
||
SHASH_FOR_EACH (port_node, &new_ports) {
|
||
const struct ovsrec_port *port = port_node->data;
|
||
size_t i;
|
||
|
||
for (i = 0; i < port->n_interfaces; i++) {
|
||
const struct ovsrec_interface *cfg = port->interfaces[i];
|
||
struct iface *iface = iface_lookup(br, cfg->name);
|
||
const char *type = iface_get_type(cfg, br->cfg);
|
||
|
||
if (iface) {
|
||
iface->cfg = cfg;
|
||
iface->type = type;
|
||
} else if (!strcmp(type, "null")) {
|
||
VLOG_WARN_ONCE("%s: The null interface type is deprecated and"
|
||
" may be removed in February 2013. Please email"
|
||
" dev@openvswitch.org with concerns.",
|
||
cfg->name);
|
||
} else {
|
||
bridge_queue_if_cfg(br, cfg, port);
|
||
}
|
||
}
|
||
}
|
||
|
||
shash_destroy(&new_ports);
|
||
}
|
||
|
||
/* Initializes 'oc' appropriately as a management service controller for
|
||
* 'br'.
|
||
*
|
||
* The caller must free oc->target when it is no longer needed. */
|
||
static void
|
||
bridge_ofproto_controller_for_mgmt(const struct bridge *br,
|
||
struct ofproto_controller *oc)
|
||
{
|
||
oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
|
||
oc->max_backoff = 0;
|
||
oc->probe_interval = 60;
|
||
oc->band = OFPROTO_OUT_OF_BAND;
|
||
oc->rate_limit = 0;
|
||
oc->burst_limit = 0;
|
||
oc->enable_async_msgs = true;
|
||
}
|
||
|
||
/* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
|
||
static void
|
||
bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
|
||
struct ofproto_controller *oc)
|
||
{
|
||
int dscp;
|
||
|
||
oc->target = c->target;
|
||
oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
|
||
oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
|
||
oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
|
||
? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
|
||
oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
|
||
oc->burst_limit = (c->controller_burst_limit
|
||
? *c->controller_burst_limit : 0);
|
||
oc->enable_async_msgs = (!c->enable_async_messages
|
||
|| *c->enable_async_messages);
|
||
dscp = smap_get_int(&c->other_config, "dscp", DSCP_DEFAULT);
|
||
if (dscp < 0 || dscp > 63) {
|
||
dscp = DSCP_DEFAULT;
|
||
}
|
||
oc->dscp = dscp;
|
||
}
|
||
|
||
/* Configures the IP stack for 'br''s local interface properly according to the
|
||
* configuration in 'c'. */
|
||
static void
|
||
bridge_configure_local_iface_netdev(struct bridge *br,
|
||
struct ovsrec_controller *c)
|
||
{
|
||
struct netdev *netdev;
|
||
struct in_addr mask, gateway;
|
||
|
||
struct iface *local_iface;
|
||
struct in_addr ip;
|
||
|
||
/* If there's no local interface or no IP address, give up. */
|
||
local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
|
||
if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
|
||
return;
|
||
}
|
||
|
||
/* Bring up the local interface. */
|
||
netdev = local_iface->netdev;
|
||
netdev_turn_flags_on(netdev, NETDEV_UP, true);
|
||
|
||
/* Configure the IP address and netmask. */
|
||
if (!c->local_netmask
|
||
|| !inet_aton(c->local_netmask, &mask)
|
||
|| !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));
|
||
}
|
||
|
||
/* Configure the default gateway. */
|
||
if (c->local_gateway
|
||
&& inet_aton(c->local_gateway, &gateway)
|
||
&& gateway.s_addr) {
|
||
if (!netdev_add_router(netdev, gateway)) {
|
||
VLOG_INFO("bridge %s: configured gateway "IP_FMT,
|
||
br->name, IP_ARGS(gateway.s_addr));
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Returns true if 'a' and 'b' are the same except that any number of slashes
|
||
* in either string are treated as equal to any number of slashes in the other,
|
||
* e.g. "x///y" is equal to "x/y".
|
||
*
|
||
* Also, if 'b_stoplen' bytes from 'b' are found to be equal to corresponding
|
||
* bytes from 'a', the function considers this success. Specify 'b_stoplen' as
|
||
* SIZE_MAX to compare all of 'a' to all of 'b' rather than just a prefix of
|
||
* 'b' against a prefix of 'a'.
|
||
*/
|
||
static bool
|
||
equal_pathnames(const char *a, const char *b, size_t b_stoplen)
|
||
{
|
||
const char *b_start = b;
|
||
while (b - b_start < b_stoplen && *a == *b) {
|
||
if (*a == '/') {
|
||
a += strspn(a, "/");
|
||
b += strspn(b, "/");
|
||
} else if (*a == '\0') {
|
||
return true;
|
||
} else {
|
||
a++;
|
||
b++;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
static void
|
||
bridge_configure_remotes(struct bridge *br,
|
||
const struct sockaddr_in *managers, size_t n_managers)
|
||
{
|
||
bool disable_in_band;
|
||
|
||
struct ovsrec_controller **controllers;
|
||
size_t n_controllers;
|
||
|
||
enum ofproto_fail_mode fail_mode;
|
||
|
||
struct ofproto_controller *ocs;
|
||
size_t n_ocs;
|
||
size_t i;
|
||
|
||
/* Check if we should disable in-band control on this bridge. */
|
||
disable_in_band = smap_get_bool(&br->cfg->other_config, "disable-in-band",
|
||
false);
|
||
|
||
/* Set OpenFlow queue ID for in-band control. */
|
||
ofproto_set_in_band_queue(br->ofproto,
|
||
smap_get_int(&br->cfg->other_config,
|
||
"in-band-queue", -1));
|
||
|
||
if (disable_in_band) {
|
||
ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
|
||
} else {
|
||
ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
|
||
}
|
||
|
||
n_controllers = bridge_get_controllers(br, &controllers);
|
||
|
||
ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
|
||
n_ocs = 0;
|
||
|
||
bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
|
||
for (i = 0; i < n_controllers; i++) {
|
||
struct ovsrec_controller *c = controllers[i];
|
||
|
||
if (!strncmp(c->target, "punix:", 6)
|
||
|| !strncmp(c->target, "unix:", 5)) {
|
||
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
|
||
char *whitelist;
|
||
|
||
if (!strncmp(c->target, "unix:", 5)) {
|
||
/* Connect to a listening socket */
|
||
whitelist = xasprintf("unix:%s/", ovs_rundir());
|
||
if (!equal_pathnames(c->target, whitelist,
|
||
strlen(whitelist))) {
|
||
VLOG_ERR_RL(&rl, "bridge %s: Not connecting to socket "
|
||
"controller \"%s\" due to possibility for "
|
||
"remote exploit. Instead, specify socket "
|
||
"in whitelisted \"%s\" or connect to "
|
||
"\"unix:%s/%s.mgmt\" (which is always "
|
||
"available without special configuration).",
|
||
br->name, c->target, whitelist,
|
||
ovs_rundir(), br->name);
|
||
free(whitelist);
|
||
continue;
|
||
}
|
||
} else {
|
||
whitelist = xasprintf("punix:%s/%s.controller",
|
||
ovs_rundir(), br->name);
|
||
if (!equal_pathnames(c->target, whitelist, SIZE_MAX)) {
|
||
/* Prevent remote ovsdb-server users from accessing
|
||
* arbitrary Unix domain sockets and overwriting arbitrary
|
||
* local files. */
|
||
VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
|
||
"controller \"%s\" due to possibility of "
|
||
"overwriting local files. Instead, specify "
|
||
"whitelisted \"%s\" or connect to "
|
||
"\"unix:%s/%s.mgmt\" (which is always "
|
||
"available without special configuration).",
|
||
br->name, c->target, whitelist,
|
||
ovs_rundir(), br->name);
|
||
free(whitelist);
|
||
continue;
|
||
}
|
||
}
|
||
|
||
free(whitelist);
|
||
}
|
||
|
||
bridge_configure_local_iface_netdev(br, c);
|
||
bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
|
||
if (disable_in_band) {
|
||
ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
|
||
}
|
||
n_ocs++;
|
||
}
|
||
|
||
ofproto_set_controllers(br->ofproto, ocs, n_ocs,
|
||
bridge_get_allowed_versions(br));
|
||
free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
|
||
free(ocs);
|
||
|
||
/* Set the fail-mode. */
|
||
fail_mode = !br->cfg->fail_mode
|
||
|| !strcmp(br->cfg->fail_mode, "standalone")
|
||
? OFPROTO_FAIL_STANDALONE
|
||
: OFPROTO_FAIL_SECURE;
|
||
ofproto_set_fail_mode(br->ofproto, fail_mode);
|
||
|
||
/* Configure OpenFlow controller connection snooping. */
|
||
if (!ofproto_has_snoops(br->ofproto)) {
|
||
struct sset snoops;
|
||
|
||
sset_init(&snoops);
|
||
sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
|
||
ovs_rundir(), br->name));
|
||
ofproto_set_snoops(br->ofproto, &snoops);
|
||
sset_destroy(&snoops);
|
||
}
|
||
}
|
||
|
||
static void
|
||
bridge_configure_tables(struct bridge *br)
|
||
{
|
||
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
|
||
int n_tables;
|
||
int i, j;
|
||
|
||
n_tables = ofproto_get_n_tables(br->ofproto);
|
||
j = 0;
|
||
for (i = 0; i < n_tables; i++) {
|
||
struct ofproto_table_settings s;
|
||
|
||
s.name = NULL;
|
||
s.max_flows = UINT_MAX;
|
||
s.groups = NULL;
|
||
s.n_groups = 0;
|
||
|
||
if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
|
||
struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
|
||
|
||
s.name = cfg->name;
|
||
if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
|
||
s.max_flows = *cfg->flow_limit;
|
||
}
|
||
if (cfg->overflow_policy
|
||
&& !strcmp(cfg->overflow_policy, "evict")) {
|
||
size_t k;
|
||
|
||
s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
|
||
for (k = 0; k < cfg->n_groups; k++) {
|
||
const char *string = cfg->groups[k];
|
||
char *msg;
|
||
|
||
msg = mf_parse_subfield__(&s.groups[k], &string);
|
||
if (msg) {
|
||
VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
|
||
"'groups' (%s)", br->name, i, msg);
|
||
free(msg);
|
||
} else if (*string) {
|
||
VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
|
||
"element '%s' contains trailing garbage",
|
||
br->name, i, cfg->groups[k]);
|
||
} else {
|
||
s.n_groups++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
ofproto_configure_table(br->ofproto, i, &s);
|
||
|
||
free(s.groups);
|
||
}
|
||
for (; j < br->cfg->n_flow_tables; j++) {
|
||
VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
|
||
"%"PRId64" not supported by this datapath", br->name,
|
||
br->cfg->key_flow_tables[j]);
|
||
}
|
||
}
|
||
|
||
static void
|
||
bridge_configure_dp_desc(struct bridge *br)
|
||
{
|
||
ofproto_set_dp_desc(br->ofproto,
|
||
smap_get(&br->cfg->other_config, "dp-desc"));
|
||
}
|
||
|
||
/* Port functions. */
|
||
|
||
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));
|
||
return port;
|
||
}
|
||
|
||
/* 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;
|
||
const char *type = port->cfg->interfaces[i]->type;
|
||
if (strcmp(type, "null")) {
|
||
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);
|
||
}
|
||
|
||
static void
|
||
port_destroy(struct port *port)
|
||
{
|
||
if (port) {
|
||
struct bridge *br = port->bridge;
|
||
struct iface *iface, *next;
|
||
|
||
if (br->ofproto) {
|
||
ofproto_bundle_unregister(br->ofproto, port);
|
||
}
|
||
|
||
LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
|
||
iface_destroy(iface);
|
||
}
|
||
|
||
hmap_remove(&br->ports, &port->hmap_node);
|
||
free(port->name);
|
||
free(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 bool
|
||
enable_lacp(struct port *port, bool *activep)
|
||
{
|
||
if (!port->cfg->lacp) {
|
||
/* XXX when LACP implementation has been sufficiently tested, enable by
|
||
* default and make active on bonded ports. */
|
||
return false;
|
||
} else if (!strcmp(port->cfg->lacp, "off")) {
|
||
return false;
|
||
} else if (!strcmp(port->cfg->lacp, "active")) {
|
||
*activep = true;
|
||
return true;
|
||
} else if (!strcmp(port->cfg->lacp, "passive")) {
|
||
*activep = false;
|
||
return true;
|
||
} else {
|
||
VLOG_WARN("port %s: unknown LACP mode %s",
|
||
port->name, port->cfg->lacp);
|
||
return false;
|
||
}
|
||
}
|
||
|
||
static struct lacp_settings *
|
||
port_configure_lacp(struct port *port, struct lacp_settings *s)
|
||
{
|
||
const char *lacp_time, *system_id;
|
||
int priority;
|
||
|
||
if (!enable_lacp(port, &s->active)) {
|
||
return NULL;
|
||
}
|
||
|
||
s->name = port->name;
|
||
|
||
system_id = smap_get(&port->cfg->other_config, "lacp-system-id");
|
||
if (system_id) {
|
||
if (sscanf(system_id, ETH_ADDR_SCAN_FMT,
|
||
ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
|
||
VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
|
||
" address.", port->name, system_id);
|
||
return NULL;
|
||
}
|
||
} else {
|
||
memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
|
||
}
|
||
|
||
if (eth_addr_is_zero(s->id)) {
|
||
VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
|
||
return NULL;
|
||
}
|
||
|
||
/* Prefer bondable links if unspecified. */
|
||
priority = smap_get_int(&port->cfg->other_config, "lacp-system-priority",
|
||
0);
|
||
s->priority = (priority > 0 && priority <= UINT16_MAX
|
||
? priority
|
||
: UINT16_MAX - !list_is_short(&port->ifaces));
|
||
|
||
lacp_time = smap_get(&port->cfg->other_config, "lacp-time");
|
||
s->fast = lacp_time && !strcasecmp(lacp_time, "fast");
|
||
return s;
|
||
}
|
||
|
||
static void
|
||
iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
|
||
{
|
||
int priority, portid, key;
|
||
|
||
portid = smap_get_int(&iface->cfg->other_config, "lacp-port-id", 0);
|
||
priority = smap_get_int(&iface->cfg->other_config, "lacp-port-priority",
|
||
0);
|
||
key = smap_get_int(&iface->cfg->other_config, "lacp-aggregation-key", 0);
|
||
|
||
if (portid <= 0 || portid > UINT16_MAX) {
|
||
portid = iface->ofp_port;
|
||
}
|
||
|
||
if (priority <= 0 || priority > UINT16_MAX) {
|
||
priority = UINT16_MAX;
|
||
}
|
||
|
||
if (key < 0 || key > UINT16_MAX) {
|
||
key = 0;
|
||
}
|
||
|
||
s->name = iface->name;
|
||
s->id = portid;
|
||
s->priority = priority;
|
||
s->key = key;
|
||
}
|
||
|
||
static void
|
||
port_configure_bond(struct port *port, struct bond_settings *s,
|
||
uint32_t *bond_stable_ids)
|
||
{
|
||
const char *detect_s;
|
||
struct iface *iface;
|
||
int miimon_interval;
|
||
size_t i;
|
||
|
||
s->name = port->name;
|
||
s->balance = BM_AB;
|
||
if (port->cfg->bond_mode) {
|
||
if (!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));
|
||
}
|
||
} else {
|
||
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
|
||
|
||
/* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
|
||
* active-backup. At some point we should remove this warning. */
|
||
VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
|
||
" in previous versions, the default bond_mode was"
|
||
" balance-slb", port->name,
|
||
bond_mode_to_string(s->balance));
|
||
}
|
||
if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
|
||
VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
|
||
"please use another bond type or disable flood_vlans",
|
||
port->name);
|
||
}
|
||
|
||
miimon_interval = smap_get_int(&port->cfg->other_config,
|
||
"bond-miimon-interval", 0);
|
||
if (miimon_interval <= 0) {
|
||
miimon_interval = 200;
|
||
}
|
||
|
||
detect_s = smap_get(&port->cfg->other_config, "bond-detect-mode");
|
||
if (!detect_s || !strcmp(detect_s, "carrier")) {
|
||
miimon_interval = 0;
|
||
} else if (strcmp(detect_s, "miimon")) {
|
||
VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
|
||
"defaulting to carrier", port->name, detect_s);
|
||
miimon_interval = 0;
|
||
}
|
||
|
||
s->up_delay = MAX(0, port->cfg->bond_updelay);
|
||
s->down_delay = MAX(0, port->cfg->bond_downdelay);
|
||
s->basis = smap_get_int(&port->cfg->other_config, "bond-hash-basis", 0);
|
||
s->rebalance_interval = smap_get_int(&port->cfg->other_config,
|
||
"bond-rebalance-interval", 10000);
|
||
if (s->rebalance_interval && s->rebalance_interval < 1000) {
|
||
s->rebalance_interval = 1000;
|
||
}
|
||
|
||
s->fake_iface = port->cfg->bond_fake_iface;
|
||
|
||
i = 0;
|
||
LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
|
||
long long stable_id;
|
||
|
||
stable_id = smap_get_int(&iface->cfg->other_config, "bond-stable-id",
|
||
0);
|
||
if (stable_id <= 0 || stable_id >= UINT32_MAX) {
|
||
stable_id = iface->ofp_port;
|
||
}
|
||
bond_stable_ids[i++] = stable_id;
|
||
|
||
netdev_set_miimon_interval(iface->netdev, miimon_interval);
|
||
}
|
||
}
|
||
|
||
/* Returns true if 'port' is synthetic, that is, if we constructed it locally
|
||
* instead of obtaining it from the database. */
|
||
static bool
|
||
port_is_synthetic(const struct port *port)
|
||
{
|
||
return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
|
||
}
|
||
|
||
/* Interface functions. */
|
||
|
||
static bool
|
||
iface_is_internal(const struct ovsrec_interface *iface,
|
||
const struct ovsrec_bridge *br)
|
||
{
|
||
/* The local port and "internal" ports are always "internal". */
|
||
return !strcmp(iface->type, "internal") || !strcmp(iface->name, br->name);
|
||
}
|
||
|
||
/* Returns the correct network device type for interface 'iface' in bridge
|
||
* 'br'. */
|
||
static const char *
|
||
iface_get_type(const struct ovsrec_interface *iface,
|
||
const struct ovsrec_bridge *br)
|
||
{
|
||
const char *type;
|
||
|
||
/* The local port always has type "internal". Other ports take
|
||
* their type from the database and default to "system" if none is
|
||
* specified. */
|
||
if (iface_is_internal(iface, br)) {
|
||
type = "internal";
|
||
} else {
|
||
type = iface->type[0] ? iface->type : "system";
|
||
}
|
||
|
||
return ofproto_port_open_type(br->datapath_type, type);
|
||
}
|
||
|
||
static void
|
||
iface_destroy(struct iface *iface)
|
||
{
|
||
if (iface) {
|
||
struct port *port = iface->port;
|
||
struct bridge *br = port->bridge;
|
||
|
||
if (br->ofproto && iface->ofp_port >= 0) {
|
||
ofproto_port_unregister(br->ofproto, iface->ofp_port);
|
||
}
|
||
|
||
if (iface->ofp_port >= 0) {
|
||
hmap_remove(&br->ifaces, &iface->ofp_port_node);
|
||
}
|
||
|
||
list_remove(&iface->port_elem);
|
||
hmap_remove(&br->iface_by_name, &iface->name_node);
|
||
|
||
netdev_close(iface->netdev);
|
||
|
||
free(iface->name);
|
||
free(iface);
|
||
}
|
||
}
|
||
|
||
static struct iface *
|
||
iface_lookup(const struct bridge *br, const char *name)
|
||
{
|
||
struct iface *iface;
|
||
|
||
HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
|
||
&br->iface_by_name) {
|
||
if (!strcmp(iface->name, name)) {
|
||
return iface;
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static struct iface *
|
||
iface_find(const char *name)
|
||
{
|
||
const struct bridge *br;
|
||
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
struct iface *iface = iface_lookup(br, name);
|
||
|
||
if (iface) {
|
||
return iface;
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
static struct if_cfg *
|
||
if_cfg_lookup(const struct bridge *br, const char *name)
|
||
{
|
||
struct if_cfg *if_cfg;
|
||
|
||
HMAP_FOR_EACH_WITH_HASH (if_cfg, hmap_node, hash_string(name, 0),
|
||
&br->if_cfg_todo) {
|
||
if (!strcmp(if_cfg->cfg->name, name)) {
|
||
return if_cfg;
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static struct iface *
|
||
iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
|
||
{
|
||
struct iface *iface;
|
||
|
||
HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
|
||
hash_int(ofp_port, 0), &br->ifaces) {
|
||
if (iface->ofp_port == ofp_port) {
|
||
return iface;
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/* Set Ethernet address of 'iface', if one is specified in the configuration
|
||
* file. */
|
||
static void
|
||
iface_set_mac(struct iface *iface)
|
||
{
|
||
uint8_t ea[ETH_ADDR_LEN];
|
||
|
||
if (!strcmp(iface->type, "internal")
|
||
&& iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
|
||
if (iface->ofp_port == OFPP_LOCAL) {
|
||
VLOG_ERR("interface %s: ignoring mac in Interface record "
|
||
"(use Bridge record to set local port's mac)",
|
||
iface->name);
|
||
} else if (eth_addr_is_multicast(ea)) {
|
||
VLOG_ERR("interface %s: cannot set MAC to multicast address",
|
||
iface->name);
|
||
} else {
|
||
int error = netdev_set_etheraddr(iface->netdev, ea);
|
||
if (error) {
|
||
VLOG_ERR("interface %s: setting MAC failed (%s)",
|
||
iface->name, strerror(error));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Sets the ofport column of 'if_cfg' to 'ofport'. */
|
||
static void
|
||
iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
|
||
{
|
||
if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
|
||
ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
|
||
}
|
||
}
|
||
|
||
/* Clears all of the fields in 'if_cfg' that indicate interface status, and
|
||
* sets the "ofport" field to -1.
|
||
*
|
||
* This is appropriate when 'if_cfg''s interface cannot be created or is
|
||
* otherwise invalid. */
|
||
static void
|
||
iface_clear_db_record(const struct ovsrec_interface *if_cfg)
|
||
{
|
||
if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
|
||
ovsrec_interface_set_status(if_cfg, NULL);
|
||
ovsrec_interface_set_admin_state(if_cfg, NULL);
|
||
ovsrec_interface_set_duplex(if_cfg, NULL);
|
||
ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
|
||
ovsrec_interface_set_link_state(if_cfg, NULL);
|
||
ovsrec_interface_set_mtu(if_cfg, NULL, 0);
|
||
ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
|
||
ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
|
||
ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
|
||
ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
|
||
ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
|
||
}
|
||
}
|
||
|
||
struct iface_delete_queues_cbdata {
|
||
struct netdev *netdev;
|
||
const struct ovsdb_datum *queues;
|
||
};
|
||
|
||
static bool
|
||
queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
|
||
{
|
||
union ovsdb_atom atom;
|
||
|
||
atom.integer = target;
|
||
return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
|
||
}
|
||
|
||
static void
|
||
iface_delete_queues(unsigned int queue_id,
|
||
const struct smap *details OVS_UNUSED, void *cbdata_)
|
||
{
|
||
struct iface_delete_queues_cbdata *cbdata = cbdata_;
|
||
|
||
if (!queue_ids_include(cbdata->queues, queue_id)) {
|
||
netdev_delete_queue(cbdata->netdev, queue_id);
|
||
}
|
||
}
|
||
|
||
static void
|
||
iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
|
||
{
|
||
struct ofpbuf queues_buf;
|
||
|
||
ofpbuf_init(&queues_buf, 0);
|
||
|
||
if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
|
||
netdev_set_qos(iface->netdev, NULL, NULL);
|
||
} else {
|
||
struct iface_delete_queues_cbdata cbdata;
|
||
bool queue_zero;
|
||
size_t i;
|
||
|
||
/* Configure top-level Qos for 'iface'. */
|
||
netdev_set_qos(iface->netdev, qos->type, &qos->other_config);
|
||
|
||
/* Deconfigure queues that were deleted. */
|
||
cbdata.netdev = iface->netdev;
|
||
cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
|
||
OVSDB_TYPE_UUID);
|
||
netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
|
||
|
||
/* Configure queues for 'iface'. */
|
||
queue_zero = false;
|
||
for (i = 0; i < qos->n_queues; i++) {
|
||
const struct ovsrec_queue *queue = qos->value_queues[i];
|
||
unsigned int queue_id = qos->key_queues[i];
|
||
|
||
if (queue_id == 0) {
|
||
queue_zero = true;
|
||
}
|
||
|
||
if (queue->n_dscp == 1) {
|
||
struct ofproto_port_queue *port_queue;
|
||
|
||
port_queue = ofpbuf_put_uninit(&queues_buf,
|
||
sizeof *port_queue);
|
||
port_queue->queue = queue_id;
|
||
port_queue->dscp = queue->dscp[0];
|
||
}
|
||
|
||
netdev_set_queue(iface->netdev, queue_id, &queue->other_config);
|
||
}
|
||
if (!queue_zero) {
|
||
struct smap details;
|
||
|
||
smap_init(&details);
|
||
netdev_set_queue(iface->netdev, 0, &details);
|
||
smap_destroy(&details);
|
||
}
|
||
}
|
||
|
||
if (iface->ofp_port >= 0) {
|
||
const struct ofproto_port_queue *port_queues = queues_buf.data;
|
||
size_t n_queues = queues_buf.size / sizeof *port_queues;
|
||
|
||
ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
|
||
port_queues, n_queues);
|
||
}
|
||
|
||
netdev_set_policing(iface->netdev,
|
||
iface->cfg->ingress_policing_rate,
|
||
iface->cfg->ingress_policing_burst);
|
||
|
||
ofpbuf_uninit(&queues_buf);
|
||
}
|
||
|
||
static void
|
||
iface_configure_cfm(struct iface *iface)
|
||
{
|
||
const struct ovsrec_interface *cfg = iface->cfg;
|
||
const char *opstate_str;
|
||
const char *cfm_ccm_vlan;
|
||
struct cfm_settings s;
|
||
struct smap netdev_args;
|
||
|
||
if (!cfg->n_cfm_mpid) {
|
||
ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
|
||
return;
|
||
}
|
||
|
||
s.check_tnl_key = false;
|
||
smap_init(&netdev_args);
|
||
if (!netdev_get_config(iface->netdev, &netdev_args)) {
|
||
const char *key = smap_get(&netdev_args, "key");
|
||
const char *in_key = smap_get(&netdev_args, "in_key");
|
||
|
||
s.check_tnl_key = (key && !strcmp(key, "flow"))
|
||
|| (in_key && !strcmp(in_key, "flow"));
|
||
}
|
||
smap_destroy(&netdev_args);
|
||
|
||
s.mpid = *cfg->cfm_mpid;
|
||
s.interval = smap_get_int(&iface->cfg->other_config, "cfm_interval", 0);
|
||
cfm_ccm_vlan = smap_get(&iface->cfg->other_config, "cfm_ccm_vlan");
|
||
s.ccm_pcp = smap_get_int(&iface->cfg->other_config, "cfm_ccm_pcp", 0);
|
||
|
||
if (s.interval <= 0) {
|
||
s.interval = 1000;
|
||
}
|
||
|
||
if (!cfm_ccm_vlan) {
|
||
s.ccm_vlan = 0;
|
||
} else if (!strcasecmp("random", cfm_ccm_vlan)) {
|
||
s.ccm_vlan = CFM_RANDOM_VLAN;
|
||
} else {
|
||
s.ccm_vlan = atoi(cfm_ccm_vlan);
|
||
if (s.ccm_vlan == CFM_RANDOM_VLAN) {
|
||
s.ccm_vlan = 0;
|
||
}
|
||
}
|
||
|
||
s.extended = smap_get_bool(&iface->cfg->other_config, "cfm_extended",
|
||
false);
|
||
|
||
opstate_str = smap_get(&iface->cfg->other_config, "cfm_opstate");
|
||
s.opup = !opstate_str || !strcasecmp("up", opstate_str);
|
||
|
||
ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
|
||
}
|
||
|
||
/* Returns true if 'iface' is synthetic, that is, if we constructed it locally
|
||
* instead of obtaining it from the database. */
|
||
static bool
|
||
iface_is_synthetic(const struct iface *iface)
|
||
{
|
||
return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
|
||
}
|
||
|
||
static int64_t
|
||
iface_pick_ofport(const struct ovsrec_interface *cfg)
|
||
{
|
||
int64_t ofport = cfg->n_ofport ? *cfg->ofport : OFPP_NONE;
|
||
return cfg->n_ofport_request ? *cfg->ofport_request : ofport;
|
||
}
|
||
|
||
|
||
/* Port mirroring. */
|
||
|
||
static struct mirror *
|
||
mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
|
||
{
|
||
struct mirror *m;
|
||
|
||
HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
|
||
if (uuid_equals(uuid, &m->uuid)) {
|
||
return m;
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
static void
|
||
bridge_configure_mirrors(struct bridge *br)
|
||
{
|
||
const struct ovsdb_datum *mc;
|
||
unsigned long *flood_vlans;
|
||
struct mirror *m, *next;
|
||
size_t i;
|
||
|
||
/* Get rid of deleted mirrors. */
|
||
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++) {
|
||
const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
|
||
struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
|
||
if (!m) {
|
||
m = mirror_create(br, cfg);
|
||
}
|
||
m->cfg = cfg;
|
||
if (!mirror_configure(m)) {
|
||
mirror_destroy(m);
|
||
}
|
||
}
|
||
|
||
/* Update flooded vlans (for RSPAN). */
|
||
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 struct mirror *
|
||
mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
|
||
{
|
||
struct mirror *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->name = xstrdup(cfg->name);
|
||
|
||
return m;
|
||
}
|
||
|
||
static void
|
||
mirror_destroy(struct mirror *m)
|
||
{
|
||
if (m) {
|
||
struct bridge *br = m->bridge;
|
||
|
||
if (br->ofproto) {
|
||
ofproto_mirror_unregister(br->ofproto, m);
|
||
}
|
||
|
||
hmap_remove(&br->mirrors, &m->hmap_node);
|
||
free(m->name);
|
||
free(m);
|
||
}
|
||
}
|
||
|
||
static void
|
||
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_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);
|
||
}
|
||
}
|
||
*out_portsp = out_ports;
|
||
*n_out_portsp = n_out_ports;
|
||
}
|
||
|
||
static bool
|
||
mirror_configure(struct mirror *m)
|
||
{
|
||
const struct ovsrec_mirror *cfg = m->cfg;
|
||
struct ofproto_mirror_settings s;
|
||
|
||
/* Set name. */
|
||
if (strcmp(cfg->name, m->name)) {
|
||
free(m->name);
|
||
m->name = xstrdup(cfg->name);
|
||
}
|
||
s.name = m->name;
|
||
|
||
/* Get output port or VLAN. */
|
||
if (cfg->output_port) {
|
||
s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
|
||
if (!s.out_bundle) {
|
||
VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
|
||
m->bridge->name, m->name);
|
||
return false;
|
||
}
|
||
s.out_vlan = UINT16_MAX;
|
||
|
||
if (cfg->output_vlan) {
|
||
VLOG_ERR("bridge %s: mirror %s specifies both output port and "
|
||
"output vlan; ignoring output vlan",
|
||
m->bridge->name, m->name);
|
||
}
|
||
} else if (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);
|
||
return false;
|
||
}
|
||
|
||
/* Get port selection. */
|
||
if (cfg->select_all) {
|
||
size_t n_ports = hmap_count(&m->bridge->ports);
|
||
void **ports = xmalloc(n_ports * sizeof *ports);
|
||
struct port *port;
|
||
size_t i;
|
||
|
||
i = 0;
|
||
HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
|
||
ports[i++] = port;
|
||
}
|
||
|
||
s.srcs = ports;
|
||
s.n_srcs = n_ports;
|
||
|
||
s.dsts = ports;
|
||
s.n_dsts = n_ports;
|
||
} else {
|
||
/* 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,
|
||
&s.srcs, &s.n_srcs);
|
||
mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
|
||
&s.dsts, &s.n_dsts);
|
||
}
|
||
|
||
/* 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. */
|
||
if (s.srcs != s.dsts) {
|
||
free(s.dsts);
|
||
}
|
||
free(s.srcs);
|
||
free(s.src_vlans);
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
|
||
*
|
||
* This is deprecated. It is only for compatibility with broken device drivers
|
||
* in old versions of Linux that do not properly support VLANs when VLAN
|
||
* devices are not used. When broken device drivers are no longer in
|
||
* widespread use, we will delete these interfaces. */
|
||
|
||
static struct ovsrec_port **recs;
|
||
static size_t n_recs, allocated_recs;
|
||
|
||
/* Adds 'rec' to a list of recs that have to be destroyed when the VLAN
|
||
* splinters are reconfigured. */
|
||
static void
|
||
register_rec(struct ovsrec_port *rec)
|
||
{
|
||
if (n_recs >= allocated_recs) {
|
||
recs = x2nrealloc(recs, &allocated_recs, sizeof *recs);
|
||
}
|
||
recs[n_recs++] = rec;
|
||
}
|
||
|
||
/* Frees all of the ports registered with register_reg(). */
|
||
static void
|
||
free_registered_recs(void)
|
||
{
|
||
size_t i;
|
||
|
||
for (i = 0; i < n_recs; i++) {
|
||
struct ovsrec_port *port = recs[i];
|
||
size_t j;
|
||
|
||
for (j = 0; j < port->n_interfaces; j++) {
|
||
struct ovsrec_interface *iface = port->interfaces[j];
|
||
free(iface->name);
|
||
free(iface);
|
||
}
|
||
|
||
smap_destroy(&port->other_config);
|
||
free(port->interfaces);
|
||
free(port->name);
|
||
free(port->tag);
|
||
free(port);
|
||
}
|
||
n_recs = 0;
|
||
}
|
||
|
||
/* Returns true if VLAN splinters are enabled on 'iface_cfg', false
|
||
* otherwise. */
|
||
static bool
|
||
vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
|
||
{
|
||
return smap_get_bool(&iface_cfg->other_config, "enable-vlan-splinters",
|
||
false);
|
||
}
|
||
|
||
/* Figures out the set of VLANs that are in use for the purpose of VLAN
|
||
* splinters.
|
||
*
|
||
* If VLAN splinters are enabled on at least one interface and any VLANs are in
|
||
* use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
|
||
* 4095 will not be set). The caller is responsible for freeing the bitmap,
|
||
* with free().
|
||
*
|
||
* If VLANs splinters are not enabled on any interface or if no VLANs are in
|
||
* use, returns NULL.
|
||
*
|
||
* Updates 'vlan_splinters_enabled_anywhere'. */
|
||
static unsigned long int *
|
||
collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
|
||
{
|
||
unsigned long int *splinter_vlans;
|
||
struct sset splinter_ifaces;
|
||
const char *real_dev_name;
|
||
struct shash *real_devs;
|
||
struct shash_node *node;
|
||
struct bridge *br;
|
||
size_t i;
|
||
|
||
/* Free space allocated for synthesized ports and interfaces, since we're
|
||
* in the process of reconstructing all of them. */
|
||
free_registered_recs();
|
||
|
||
splinter_vlans = bitmap_allocate(4096);
|
||
sset_init(&splinter_ifaces);
|
||
vlan_splinters_enabled_anywhere = false;
|
||
for (i = 0; i < ovs_cfg->n_bridges; i++) {
|
||
struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
|
||
size_t j;
|
||
|
||
for (j = 0; j < br_cfg->n_ports; j++) {
|
||
struct ovsrec_port *port_cfg = br_cfg->ports[j];
|
||
int k;
|
||
|
||
for (k = 0; k < port_cfg->n_interfaces; k++) {
|
||
struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
|
||
|
||
if (vlan_splinters_is_enabled(iface_cfg)) {
|
||
vlan_splinters_enabled_anywhere = true;
|
||
sset_add(&splinter_ifaces, iface_cfg->name);
|
||
vlan_bitmap_from_array__(port_cfg->trunks,
|
||
port_cfg->n_trunks,
|
||
splinter_vlans);
|
||
}
|
||
}
|
||
|
||
if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
|
||
bitmap_set1(splinter_vlans, *port_cfg->tag);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!vlan_splinters_enabled_anywhere) {
|
||
free(splinter_vlans);
|
||
sset_destroy(&splinter_ifaces);
|
||
return NULL;
|
||
}
|
||
|
||
HMAP_FOR_EACH (br, node, &all_bridges) {
|
||
if (br->ofproto) {
|
||
ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
|
||
}
|
||
}
|
||
|
||
/* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
|
||
* the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
|
||
* device to be created for it. */
|
||
bitmap_set0(splinter_vlans, 0);
|
||
bitmap_set0(splinter_vlans, 4095);
|
||
|
||
/* Delete all VLAN devices that we don't need. */
|
||
vlandev_refresh();
|
||
real_devs = vlandev_get_real_devs();
|
||
SHASH_FOR_EACH (node, real_devs) {
|
||
const struct vlan_real_dev *real_dev = node->data;
|
||
const struct vlan_dev *vlan_dev;
|
||
bool real_dev_has_splinters;
|
||
|
||
real_dev_has_splinters = sset_contains(&splinter_ifaces,
|
||
real_dev->name);
|
||
HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
|
||
if (!real_dev_has_splinters
|
||
|| !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
|
||
struct netdev *netdev;
|
||
|
||
if (!netdev_open(vlan_dev->name, "system", &netdev)) {
|
||
if (!netdev_get_in4(netdev, NULL, NULL) ||
|
||
!netdev_get_in6(netdev, NULL)) {
|
||
vlandev_del(vlan_dev->name);
|
||
} else {
|
||
/* It has an IP address configured, so we don't own
|
||
* it. Don't delete it. */
|
||
}
|
||
netdev_close(netdev);
|
||
}
|
||
}
|
||
|
||
}
|
||
}
|
||
|
||
/* Add all VLAN devices that we need. */
|
||
SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
|
||
int vid;
|
||
|
||
BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
|
||
if (!vlandev_get_name(real_dev_name, vid)) {
|
||
vlandev_add(real_dev_name, vid);
|
||
}
|
||
}
|
||
}
|
||
|
||
vlandev_refresh();
|
||
|
||
sset_destroy(&splinter_ifaces);
|
||
|
||
if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
|
||
free(splinter_vlans);
|
||
return NULL;
|
||
}
|
||
return splinter_vlans;
|
||
}
|
||
|
||
/* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
|
||
* ofproto. */
|
||
static void
|
||
configure_splinter_port(struct port *port)
|
||
{
|
||
struct ofproto *ofproto = port->bridge->ofproto;
|
||
uint16_t realdev_ofp_port;
|
||
const char *realdev_name;
|
||
struct iface *vlandev, *realdev;
|
||
|
||
ofproto_bundle_unregister(port->bridge->ofproto, port);
|
||
|
||
vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
|
||
port_elem);
|
||
|
||
realdev_name = smap_get(&port->cfg->other_config, "realdev");
|
||
realdev = iface_lookup(port->bridge, realdev_name);
|
||
realdev_ofp_port = realdev ? realdev->ofp_port : 0;
|
||
|
||
ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
|
||
*port->cfg->tag);
|
||
}
|
||
|
||
static struct ovsrec_port *
|
||
synthesize_splinter_port(const char *real_dev_name,
|
||
const char *vlan_dev_name, int vid)
|
||
{
|
||
struct ovsrec_interface *iface;
|
||
struct ovsrec_port *port;
|
||
|
||
iface = xmalloc(sizeof *iface);
|
||
ovsrec_interface_init(iface);
|
||
iface->name = xstrdup(vlan_dev_name);
|
||
iface->type = "system";
|
||
|
||
port = xmalloc(sizeof *port);
|
||
ovsrec_port_init(port);
|
||
port->interfaces = xmemdup(&iface, sizeof iface);
|
||
port->n_interfaces = 1;
|
||
port->name = xstrdup(vlan_dev_name);
|
||
port->vlan_mode = "splinter";
|
||
port->tag = xmalloc(sizeof *port->tag);
|
||
*port->tag = vid;
|
||
|
||
smap_add(&port->other_config, "realdev", real_dev_name);
|
||
|
||
register_rec(port);
|
||
return port;
|
||
}
|
||
|
||
/* For each interface with 'br' that has VLAN splinters enabled, adds a
|
||
* corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
|
||
* 1-bit in the 'splinter_vlans' bitmap. */
|
||
static void
|
||
add_vlan_splinter_ports(struct bridge *br,
|
||
const unsigned long int *splinter_vlans,
|
||
struct shash *ports)
|
||
{
|
||
size_t i;
|
||
|
||
/* We iterate through 'br->cfg->ports' instead of 'ports' here because
|
||
* we're modifying 'ports'. */
|
||
for (i = 0; i < br->cfg->n_ports; i++) {
|
||
const char *name = br->cfg->ports[i]->name;
|
||
struct ovsrec_port *port_cfg = shash_find_data(ports, name);
|
||
size_t j;
|
||
|
||
for (j = 0; j < port_cfg->n_interfaces; j++) {
|
||
struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
|
||
|
||
if (vlan_splinters_is_enabled(iface_cfg)) {
|
||
const char *real_dev_name;
|
||
uint16_t vid;
|
||
|
||
real_dev_name = iface_cfg->name;
|
||
BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
|
||
const char *vlan_dev_name;
|
||
|
||
vlan_dev_name = vlandev_get_name(real_dev_name, vid);
|
||
if (vlan_dev_name
|
||
&& !shash_find(ports, vlan_dev_name)) {
|
||
shash_add(ports, vlan_dev_name,
|
||
synthesize_splinter_port(
|
||
real_dev_name, vlan_dev_name, vid));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
mirror_refresh_stats(struct mirror *m)
|
||
{
|
||
struct ofproto *ofproto = m->bridge->ofproto;
|
||
uint64_t tx_packets, tx_bytes;
|
||
char *keys[2];
|
||
int64_t values[2];
|
||
size_t stat_cnt = 0;
|
||
|
||
if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
|
||
ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
|
||
return;
|
||
}
|
||
|
||
if (tx_packets != UINT64_MAX) {
|
||
keys[stat_cnt] = "tx_packets";
|
||
values[stat_cnt] = tx_packets;
|
||
stat_cnt++;
|
||
}
|
||
if (tx_bytes != UINT64_MAX) {
|
||
keys[stat_cnt] = "tx_bytes";
|
||
values[stat_cnt] = tx_bytes;
|
||
stat_cnt++;
|
||
}
|
||
|
||
ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);
|
||
}
|