X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=vswitchd%2Fbridge.c;h=e09b552ad95d952bf37b1f1f09c170ab5ee53e83;hb=bcbf843a4b2005c34d15f8cb1625028cef4f501d;hp=4e2833e0be70b2c0b65754bfd762d9817ede4498;hpb=5af5b5324cfc096ff80e96b06b3eb4d6f03307a3;p=sliver-openvswitch.git diff --git a/vswitchd/bridge.c b/vswitchd/bridge.c index 4e2833e0b..e09b552ad 100644 --- a/vswitchd/bridge.c +++ b/vswitchd/bridge.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks +/* Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -28,9 +28,11 @@ #include "dynamic-string.h" #include "hash.h" #include "hmap.h" +#include "hmapx.h" #include "jsonrpc.h" #include "lacp.h" #include "list.h" +#include "mac-learning.h" #include "netdev.h" #include "ofp-print.h" #include "ofpbuf.h" @@ -39,12 +41,14 @@ #include "sha1.h" #include "shash.h" #include "socket-util.h" +#include "stream.h" #include "stream-ssl.h" #include "sset.h" #include "system-stats.h" #include "timeval.h" #include "util.h" #include "unixctl.h" +#include "vlandev.h" #include "vswitchd/vswitch-idl.h" #include "xenserver.h" #include "vlog.h" @@ -77,6 +81,7 @@ struct mirror { struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */ struct bridge *bridge; char *name; + const struct ovsrec_mirror *cfg; }; struct port { @@ -143,7 +148,8 @@ static unixctl_cb_func bridge_unixctl_dump_flows; static unixctl_cb_func bridge_unixctl_reconnect; static size_t bridge_get_controllers(const struct bridge *br, struct ovsrec_controller ***controllersp); -static void bridge_add_del_ports(struct bridge *); +static void bridge_add_del_ports(struct bridge *, + const unsigned long int *splinter_vlans); static void bridge_add_ofproto_ports(struct bridge *); static void bridge_del_ofproto_ports(struct bridge *); static void bridge_refresh_ofp_port(struct bridge *); @@ -151,7 +157,9 @@ static void bridge_configure_datapath_id(struct bridge *); static void bridge_configure_flow_eviction_threshold(struct bridge *); static void bridge_configure_netflow(struct bridge *); static void bridge_configure_forward_bpdu(struct bridge *); +static void bridge_configure_mac_idle_time(struct bridge *); static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number); +static void bridge_configure_stp(struct bridge *); static void bridge_configure_remotes(struct bridge *, const struct sockaddr_in *managers, size_t n_managers); @@ -161,6 +169,11 @@ static void bridge_pick_local_hw_addr(struct bridge *, static uint64_t bridge_pick_datapath_id(struct bridge *, const uint8_t bridge_ea[ETH_ADDR_LEN], struct iface *hw_addr_iface); +static const char *bridge_get_other_config(const struct ovsrec_bridge *, + const char *key); +static const char *get_port_other_config(const struct ovsrec_port *, + const char *key, + const char *default_value); static uint64_t dpid_from_hash(const void *, size_t nbytes); static bool bridge_has_bond_fake_iface(const struct bridge *, const char *name); @@ -178,12 +191,14 @@ static struct lacp_settings *port_configure_lacp(struct port *, struct lacp_settings *); static void port_configure_bond(struct port *, struct bond_settings *, uint32_t *bond_stable_ids); +static bool port_is_synthetic(const struct port *); static void bridge_configure_mirrors(struct bridge *); static struct mirror *mirror_create(struct bridge *, const struct ovsrec_mirror *); static void mirror_destroy(struct mirror *); -static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *); +static bool mirror_configure(struct mirror *); +static void mirror_refresh_stats(struct mirror *); static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *); static struct iface *iface_create(struct port *port, @@ -201,13 +216,33 @@ static void iface_configure_cfm(struct iface *); static void iface_refresh_cfm_stats(struct iface *); static void iface_refresh_stats(struct iface *); static void iface_refresh_status(struct iface *); -static bool iface_get_carrier(const struct iface *); static bool iface_is_synthetic(const struct iface *); +static const char *get_interface_other_config(const struct ovsrec_interface *, + const char *key, + const char *default_value); static void shash_from_ovs_idl_map(char **keys, char **values, size_t n, struct shash *); static void shash_to_ovs_idl_map(struct shash *, char ***keys, char ***values, size_t *n); + +/* 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. */ + +/* True if VLAN splinters are enabled on any interface, false otherwise.*/ +static bool vlan_splinters_enabled_anywhere; + +static bool vlan_splinters_is_enabled(const struct ovsrec_interface *); +static unsigned long int *collect_splinter_vlans( + const struct ovsrec_open_vswitch *); +static void configure_splinter_port(struct port *); +static void add_vlan_splinter_ports(struct bridge *, + const unsigned long int *splinter_vlans, + struct shash *ports); /* Public functions. */ @@ -230,8 +265,11 @@ bridge_init(const char *remote) ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version); ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id); + ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status); ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids); + ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status); + ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics); ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids); ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge); @@ -239,6 +277,7 @@ bridge_init(const char *remote) ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex); ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed); ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state); + ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets); ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu); ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport); ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics); @@ -258,6 +297,7 @@ bridge_init(const char *remote) ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids); ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids); + ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics); ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids); @@ -272,10 +312,11 @@ bridge_init(const char *remote) ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids); /* Register unixctl commands. */ - unixctl_command_register("qos/show", "interface", qos_unixctl_show, NULL); - unixctl_command_register("bridge/dump-flows", "bridge", + unixctl_command_register("qos/show", "interface", 1, 1, + qos_unixctl_show, NULL); + unixctl_command_register("bridge/dump-flows", "bridge", 1, 1, bridge_unixctl_dump_flows, NULL); - unixctl_command_register("bridge/reconnect", "[bridge]", + unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1, bridge_unixctl_reconnect, NULL); lacp_init(); bond_init(); @@ -335,10 +376,10 @@ collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg, SSET_FOR_EACH (target, &targets) { struct sockaddr_in *sin = &managers[n_managers]; - if ((!strncmp(target, "tcp:", 4) - && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) || - (!strncmp(target, "ssl:", 4) - && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) { + if (stream_parse_target_with_default_ports(target, + JSONRPC_TCP_PORT, + JSONRPC_SSL_PORT, + sin)) { n_managers++; } } @@ -352,6 +393,7 @@ collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg, static void bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg) { + unsigned long int *splinter_vlans; struct sockaddr_in *managers; struct bridge *br, *next; int sflow_bridge_number; @@ -363,12 +405,14 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg) * iface"s according to 'ovs_cfg', with only very minimal configuration * otherwise. * - * This is purely an update to bridge data structures. Nothing is pushed - * down to ofproto or lower layers. */ + * This is mostly an update to bridge data structures. Very little 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); + bridge_add_del_ports(br, splinter_vlans); } + free(splinter_vlans); /* Delete all datapaths and datapath ports that are no longer configured. * @@ -390,8 +434,12 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg) * has at least one iface, every "struct iface" has a valid ofp_port and * netdev. */ HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) { - if (!br->ofproto && !bridge_add_ofprotos(br)) { - bridge_destroy(br); + if (!br->ofproto) { + if (bridge_add_ofprotos(br)) { + bridge_del_ofproto_ports(br); + } else { + bridge_destroy(br); + } } } HMAP_FOR_EACH (br, node, &all_bridges) { @@ -405,6 +453,10 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg) 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; @@ -417,12 +469,13 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg) } } bridge_configure_mirrors(br); - bridge_configure_datapath_id(br); bridge_configure_flow_eviction_threshold(br); bridge_configure_forward_bpdu(br); + bridge_configure_mac_idle_time(br); bridge_configure_remotes(br, managers, n_managers); bridge_configure_netflow(br); bridge_configure_sflow(br, &sflow_bridge_number); + bridge_configure_stp(br); } free(managers); @@ -478,6 +531,11 @@ port_configure(struct port *port) 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; @@ -490,17 +548,8 @@ port_configure(struct port *port) /* Get VLAN tag. */ s.vlan = -1; - if (cfg->tag) { - if (list_is_short(&port->ifaces)) { - if (*cfg->tag >= 0 && *cfg->tag <= 4095) { - s.vlan = *cfg->tag; - } - } else { - /* It's possible that bonded, VLAN-tagged ports make sense. Maybe - * they even work as-is. But they have not been tested. */ - VLOG_WARN("port %s: VLAN tags not supported on bonded ports", - port->name); - } + if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) { + s.vlan = *cfg->tag; } /* Get VLAN trunks. */ @@ -535,6 +584,8 @@ port_configure(struct port *port) s.vlan_mode = PORT_VLAN_TRUNK; } } + s.use_priority_tags = !strcmp("true", get_port_other_config( + cfg, "priority-tags", "")); /* Get LACP settings. */ s.lacp = port_configure_lacp(port, &lacp_settings); @@ -716,6 +767,196 @@ bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number) 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; + + config_str = get_port_other_config(port->cfg, "stp-enable", NULL); + if (config_str && !strcmp(config_str, "false")) { + 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 = get_port_other_config(port->cfg, "stp-port-num", NULL); + 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 = get_port_other_config(port->cfg, "stp-path-cost", NULL); + if (config_str) { + port_s->path_cost = strtoul(config_str, NULL, 10); + } else { + uint32_t current; + + if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) { + /* Couldn't get speed, so assume 100Mb/s. */ + port_s->path_cost = 19; + } else { + unsigned int mbps; + + mbps = netdev_features_to_bps(current) / 1000000; + port_s->path_cost = stp_convert_speed_to_cost(mbps); + } + } + + config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL); + 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 = bridge_get_other_config(br->cfg, "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 = bridge_get_other_config(br->cfg, "stp-priority"); + if (config_str) { + br_s.priority = strtoul(config_str, NULL, 0); + } else { + br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY; + } + + config_str = bridge_get_other_config(br->cfg, "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 = bridge_get_other_config(br->cfg, "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 = bridge_get_other_config(br->cfg, "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) { @@ -891,6 +1132,12 @@ bridge_add_ofproto_ports(struct bridge *br) VLOG_WARN("could not open network device %s (%s)", iface->name, strerror(error)); } + + if (iface->netdev + && port->cfg->vlan_mode + && !strcmp(port->cfg->vlan_mode, "splinter")) { + netdev_turn_flags_on(iface->netdev, NETDEV_UP, true); + } } else { error = 0; } @@ -981,25 +1228,24 @@ bridge_add_ofproto_ports(struct bridge *br) } static const char * -get_ovsrec_key_value(const struct ovsdb_idl_row *row, - const struct ovsdb_idl_column *column, - const char *key) +get_ovsrec_key_value(char **keys, char **values, size_t n, const char *key) { - const struct ovsdb_datum *datum; - union ovsdb_atom atom; - unsigned int idx; + size_t i; - datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING); - atom.string = (char *) key; - idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING); - return idx == UINT_MAX ? NULL : datum->values[idx].string; + for (i = 0; i < n; i++) { + if (!strcmp(keys[i], key)) { + return values[i]; + } + } + return NULL; } static const char * bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key) { - return get_ovsrec_key_value(&br_cfg->header_, - &ovsrec_bridge_col_other_config, key); + return get_ovsrec_key_value(br_cfg->key_other_config, + br_cfg->value_other_config, + br_cfg->n_other_config, key); } /* Set Flow eviction threshold */ @@ -1032,14 +1278,30 @@ bridge_configure_forward_bpdu(struct bridge *br) ofproto_set_forward_bpdu(br->ofproto, forward_bpdu); } +/* Set MAC aging time for 'br'. */ +static void +bridge_configure_mac_idle_time(struct bridge *br) +{ + const char *idle_time_str; + int idle_time; + + idle_time_str = bridge_get_other_config(br->cfg, "mac-aging-time"); + idle_time = (idle_time_str && atoi(idle_time_str) + ? atoi(idle_time_str) + : MAC_ENTRY_DEFAULT_IDLE_TIME); + ofproto_set_mac_idle_time(br->ofproto, idle_time); +} + 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; @@ -1056,6 +1318,18 @@ bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN], } } + /* 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) { @@ -1064,7 +1338,7 @@ bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN], struct iface *iface; /* Mirror output ports don't participate. */ - if (ofproto_is_mirror_output_bundle(br->ofproto, port)) { + if (hmapx_contains(&mirror_output_ports, port->cfg)) { continue; } @@ -1127,6 +1401,8 @@ bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN], VLOG_WARN("bridge %s: using default bridge Ethernet " "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea)); } + + hmapx_destroy(&mirror_output_ports); } /* Choose and returns the datapath ID for bridge 'br' given that the bridge @@ -1159,33 +1435,10 @@ bridge_pick_datapath_id(struct bridge *br, return dpid; } - if (hw_addr_iface) { - int vlan; - if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) { - /* - * A bridge whose MAC address is taken from a VLAN network device - * (that is, a network device created with vconfig(8) or similar - * tool) will have the same MAC address as a bridge on the VLAN - * device's physical network device. - * - * Handle this case by hashing the physical network device MAC - * along with the VLAN identifier. - */ - uint8_t buf[ETH_ADDR_LEN + 2]; - memcpy(buf, bridge_ea, ETH_ADDR_LEN); - buf[ETH_ADDR_LEN] = vlan >> 8; - buf[ETH_ADDR_LEN + 1] = vlan; - return dpid_from_hash(buf, sizeof buf); - } else { - /* - * Assume that this bridge's MAC address is unique, since it - * doesn't fit any of the cases we handle specially. - */ - } - } else { + if (!hw_addr_iface) { /* * A purely internal bridge, that is, one that has no non-virtual - * network devices on it at all, is more difficult because it has no + * 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 @@ -1275,9 +1528,6 @@ iface_refresh_status(struct iface *iface) ovsrec_interface_set_link_speed(iface->cfg, NULL, 0); } - ovsrec_interface_set_link_state(iface->cfg, - iface_get_carrier(iface) ? "up" : "down"); - error = netdev_get_mtu(iface->netdev, &mtu); if (!error) { mtu_64 = mtu; @@ -1320,20 +1570,6 @@ iface_refresh_cfm_stats(struct iface *iface) } } -static bool -iface_refresh_lacp_stats(struct iface *iface) -{ - struct ofproto *ofproto = iface->port->bridge->ofproto; - int old = iface->cfg->lacp_current ? *iface->cfg->lacp_current : -1; - int new = ofproto_port_is_lacp_current(ofproto, iface->ofp_port); - - if (old != new) { - bool current = new; - ovsrec_interface_set_lacp_current(iface->cfg, ¤t, new >= 0); - } - return old != new; -} - static void iface_refresh_stats(struct iface *iface) { @@ -1378,14 +1614,108 @@ iface_refresh_stats(struct iface *iface) #undef IFACE_STATS } +static void +br_refresh_stp_status(struct bridge *br) +{ + struct ofproto *ofproto = br->ofproto; + struct ofproto_stp_status status; + char *keys[3], *values[3]; + size_t i; + + if (ofproto_get_stp_status(ofproto, &status)) { + return; + } + + if (!status.enabled) { + ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0); + return; + } + + keys[0] = "stp_bridge_id", + values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id)); + keys[1] = "stp_designated_root", + values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root)); + keys[2] = "stp_root_path_cost", + values[2] = xasprintf("%d", status.root_path_cost); + + ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values)); + + for (i = 0; i < ARRAY_SIZE(values); i++) { + free(values[i]); + } +} + +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[4]; + char *str_values[4]; + int64_t int_values[3]; + size_t i; + + 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, NULL, 0); + 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, NULL, 0); + ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0); + return; + } + + /* Set Status column. */ + keys[0] = "stp_port_id"; + str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id); + keys[1] = "stp_state"; + str_values[1] = xstrdup(stp_state_name(status.state)); + keys[2] = "stp_sec_in_state"; + str_values[2] = xasprintf("%u", status.sec_in_state); + keys[3] = "stp_role"; + str_values[3] = xstrdup(stp_role_name(status.role)); + + ovsrec_port_set_status(port->cfg, keys, str_values, + ARRAY_SIZE(str_values)); + + for (i = 0; i < ARRAY_SIZE(str_values); i++) { + free(str_values[i]); + } + + /* 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) { const char *enable; /* Use other-config:enable-system-stats by preference. */ - enable = get_ovsrec_key_value(&cfg->header_, - &ovsrec_open_vswitch_col_other_config, + enable = get_ovsrec_key_value(cfg->key_other_config, + cfg->value_other_config, + cfg->n_other_config, "enable-statistics"); if (enable) { return !strcmp(enable, "true"); @@ -1486,12 +1816,28 @@ refresh_cfm_stats(void) } } +/* 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 bridge *br; + + HMAP_FOR_EACH (br, node, &all_bridges) { + ofproto_run_fast(br->ofproto); + } +} + void bridge_run(void) { const struct ovsrec_open_vswitch *cfg; - bool datapath_destroyed; + bool vlan_splinters_changed; bool database_changed; struct bridge *br; @@ -1514,15 +1860,8 @@ bridge_run(void) cfg = ovsrec_open_vswitch_first(idl); /* Let each bridge do the work that it needs to do. */ - datapath_destroyed = false; HMAP_FOR_EACH (br, node, &all_bridges) { - int error = ofproto_run(br->ofproto); - if (error) { - static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); - VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, " - "forcing reconfiguration", br->name); - datapath_destroyed = true; - } + ofproto_run(br->ofproto); } /* Re-configure SSL. We do this on every trip through the main loop, @@ -1538,7 +1877,19 @@ bridge_run(void) stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert); } - if (database_changed || datapath_destroyed) { + /* 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 (database_changed || vlan_splinters_changed) { if (cfg) { struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl); @@ -1564,6 +1915,7 @@ bridge_run(void) 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; @@ -1573,6 +1925,11 @@ bridge_run(void) iface_refresh_status(iface); } } + + HMAP_FOR_EACH (m, hmap_node, &br->mirrors) { + mirror_refresh_stats(m); + } + } refresh_system_stats(cfg); refresh_controller_status(); @@ -1585,29 +1942,47 @@ bridge_run(void) if (time_msec() >= db_limiter) { struct ovsdb_idl_txn *txn; - bool changed = false; 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) { - struct iface *iface; + port_refresh_stp_status(port); + } + + HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) { + const char *link_state; + int64_t link_resets; + int current; - LIST_FOR_EACH (iface, port_elem, &port->ifaces) { - /* XXX: Eventually we need to remove the lacp_current flag - * from the database so that we can completely get rid of - * this rate limiter code. */ - changed = iface_refresh_lacp_stats(iface) || changed; + 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); + } + + 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); } } - if (changed) { + if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) { db_limiter = time_msec() + DB_LIMIT_INTERVAL; } - - ovsdb_idl_txn_commit(txn); ovsdb_idl_txn_destroy(txn); } @@ -1682,8 +2057,8 @@ qos_unixctl_show_cb(unsigned int queue_id, } static void -qos_unixctl_show(struct unixctl_conn *conn, - const char *args, void *aux OVS_UNUSED) +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 shash sh = SHASH_INITIALIZER(&sh); @@ -1693,7 +2068,7 @@ qos_unixctl_show(struct unixctl_conn *conn, struct qos_unixctl_show_cbdata data; int error; - iface = iface_find(args); + iface = iface_find(argv[1]); if (!iface) { unixctl_command_reply(conn, 501, "no such interface"); return; @@ -1792,13 +2167,13 @@ bridge_lookup(const char *name) /* Handle requests for a listing of all flows known by the OpenFlow * stack, including those normally hidden. */ static void -bridge_unixctl_dump_flows(struct unixctl_conn *conn, - const char *args, void *aux OVS_UNUSED) +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(args); + br = bridge_lookup(argv[1]); if (!br) { unixctl_command_reply(conn, 501, "Unknown bridge"); return; @@ -1815,12 +2190,12 @@ bridge_unixctl_dump_flows(struct unixctl_conn *conn, * 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, - const char *args, void *aux OVS_UNUSED) +bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc, + const char *argv[], void *aux OVS_UNUSED) { struct bridge *br; - if (args[0] != '\0') { - br = bridge_lookup(args); + if (argc > 1) { + br = bridge_lookup(argv[1]); if (!br) { unixctl_command_reply(conn, 501, "Unknown bridge"); return; @@ -1858,7 +2233,8 @@ bridge_get_controllers(const struct bridge *br, /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match * those configured in 'br->cfg'. */ static void -bridge_add_del_ports(struct bridge *br) +bridge_add_del_ports(struct bridge *br, + const unsigned long int *splinter_vlans) { struct port *port, *next; struct shash_node *node; @@ -1891,9 +2267,12 @@ bridge_add_del_ports(struct bridge *br) 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. - * Update 'cfg' of ports that still exist. */ + * 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) { @@ -1996,6 +2375,26 @@ bridge_configure_local_iface_netdev(struct bridge *br, } } +/* 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". */ +static bool +equal_pathnames(const char *a, const char *b) +{ + while (*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) @@ -2042,13 +2441,26 @@ bridge_configure_remotes(struct bridge *br, 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; + + whitelist = xasprintf("unix:%s/%s.controller", + ovs_rundir(), br->name); + if (!equal_pathnames(c->target, whitelist)) { + /* 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 for remote " + "exploit. 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; + } - /* 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 for remote " - "exploit", br->name, c->target); - continue; + free(whitelist); } bridge_configure_local_iface_netdev(br, c); @@ -2108,8 +2520,9 @@ get_port_other_config(const struct ovsrec_port *port, const char *key, { const char *value; - value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config, - key); + value = get_ovsrec_key_value(port->key_other_config, + port->value_other_config, + port->n_other_config, key); return value ? value : default_value; } @@ -2119,8 +2532,9 @@ get_interface_other_config(const struct ovsrec_interface *iface, { const char *value; - value = get_ovsrec_key_value(&iface->header_, - &ovsrec_interface_col_other_config, key); + value = get_ovsrec_key_value(iface->key_other_config, + iface->value_other_config, + iface->n_other_config, key); return value ? value : default_value; } @@ -2260,7 +2674,7 @@ enable_lacp(struct port *port, bool *activep) static struct lacp_settings * port_configure_lacp(struct port *port, struct lacp_settings *s) { - const char *lacp_time; + const char *lacp_time, *system_id; long long int custom_time; int priority; @@ -2269,7 +2683,18 @@ port_configure_lacp(struct port *port, struct lacp_settings *s) } s->name = port->name; - memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN); + + system_id = get_port_other_config(port->cfg, "lacp-system-id", NULL); + if (!system_id + || sscanf(system_id, ETH_ADDR_SCAN_FMT, + ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) { + 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 = atoi(get_port_other_config(port->cfg, "lacp-system-priority", @@ -2282,7 +2707,6 @@ port_configure_lacp(struct port *port, struct lacp_settings *s) "lacp-heartbeat", "false"), "true"); - lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow"); custom_time = atoi(lacp_time); if (!strcmp(lacp_time, "fast")) { @@ -2339,11 +2763,21 @@ port_configure_bond(struct port *port, struct bond_settings *s, s->name = port->name; s->balance = BM_SLB; - if (port->cfg->bond_mode - && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) { - VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s", - port->name, port->cfg->bond_mode, - bond_mode_to_string(s->balance)); + 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 1.4.*, change the default bond_mode to + * active-backup. Until then, warn that the change is imminent. */ + VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that" + " in future versions, the default bond_mode is expected" + " to change to active-backup", 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, " @@ -2391,6 +2825,14 @@ port_configure_bond(struct port *port, struct bond_settings *s, 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. */ @@ -2621,6 +3063,10 @@ iface_delete_queues(unsigned int 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 { @@ -2651,6 +3097,15 @@ iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos) 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]; + } + shash_from_ovs_idl_map(queue->key_other_config, queue->value_other_config, queue->n_other_config, &details); @@ -2660,15 +3115,28 @@ iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos) if (!queue_zero) { static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1); VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default " - "queue (queue 0). Packets not directed to a " - "correctly configured queue may be dropped.", + "queue (queue 0). Using default configuration.", iface->name); + + shash_init(&details); + netdev_set_queue(iface->netdev, 0, &details); + shash_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 @@ -2686,6 +3154,8 @@ iface_configure_cfm(struct iface *iface) s.mpid = *cfg->cfm_mpid; s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval", "0")); + s.ccm_vlan = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_vlan", + "0")); if (s.interval <= 0) { s.interval = 1000; } @@ -2700,17 +3170,6 @@ iface_configure_cfm(struct iface *iface) ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s); } -/* Read carrier or miimon status directly from 'iface''s netdev, according to - * how 'iface''s port is configured. - * - * Returns true if 'iface' is up, false otherwise. */ -static bool -iface_get_carrier(const struct iface *iface) -{ - /* XXX */ - return netdev_get_carrier(iface->netdev); -} - /* Returns true if 'iface' is synthetic, that is, if we constructed it locally * instead of obtaining it from the database. */ static bool @@ -2760,7 +3219,8 @@ bridge_configure_mirrors(struct bridge *br) if (!m) { m = mirror_create(br, cfg); } - if (!mirror_configure(m, cfg)) { + m->cfg = cfg; + if (!mirror_configure(m)) { mirror_destroy(m); } } @@ -2826,8 +3286,9 @@ mirror_collect_ports(struct mirror *m, } static bool -mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg) +mirror_configure(struct mirror *m) { + const struct ovsrec_mirror *cfg = m->cfg; struct ofproto_mirror_settings s; /* Set name. */ @@ -2903,3 +3364,302 @@ mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg) 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 void **blocks; +static size_t n_blocks, allocated_blocks; + +/* Adds 'block' to a list of blocks that have to be freed with free() when the + * VLAN splinters are reconfigured. */ +static void +register_block(void *block) +{ + if (n_blocks >= allocated_blocks) { + blocks = x2nrealloc(blocks, &allocated_blocks, sizeof *blocks); + } + blocks[n_blocks++] = block; +} + +/* Frees all of the blocks registered with register_block(). */ +static void +free_registered_blocks(void) +{ + size_t i; + + for (i = 0; i < n_blocks; i++) { + free(blocks[i]); + } + n_blocks = 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) +{ + const char *value; + + value = get_interface_other_config(iface_cfg, "enable-vlan-splinters", ""); + return !strcmp(value, "true"); +} + +/* 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_blocks(); + + 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 = get_port_other_config(port->cfg, "realdev", NULL); + 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 = xzalloc(sizeof *iface); + iface->name = xstrdup(vlan_dev_name); + iface->type = "system"; + + port = xzalloc(sizeof *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; + port->key_other_config = xmalloc(sizeof *port->key_other_config); + port->key_other_config[0] = "realdev"; + port->value_other_config = xmalloc(sizeof *port->value_other_config); + port->value_other_config[0] = xstrdup(real_dev_name); + port->n_other_config = 1; + + register_block(iface); + register_block(iface->name); + register_block(port); + register_block(port->interfaces); + register_block(port->name); + register_block(port->tag); + register_block(port->key_other_config); + register_block(port->value_other_config); + register_block(port->value_other_config[0]); + + 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); +}