diff options
Diffstat (limited to 'src/plugins/gbp/gbp_endpoint.c')
| -rw-r--r-- | src/plugins/gbp/gbp_endpoint.c | 899 |
1 files changed, 670 insertions, 229 deletions
diff --git a/src/plugins/gbp/gbp_endpoint.c b/src/plugins/gbp/gbp_endpoint.c index a261527a177..79c140ff916 100644 --- a/src/plugins/gbp/gbp_endpoint.c +++ b/src/plugins/gbp/gbp_endpoint.c @@ -17,98 +17,87 @@ #include <plugins/gbp/gbp_endpoint.h> #include <plugins/gbp/gbp_endpoint_group.h> - -#include <vnet/ethernet/arp_packet.h> +#include <plugins/gbp/gbp_itf.h> +#include <plugins/gbp/gbp_scanner.h> +#include <plugins/gbp/gbp_bridge_domain.h> +#include <plugins/gbp/gbp_route_domain.h> +#include <plugins/gbp/gbp_policy_dpo.h> +#include <plugins/gbp/gbp_vxlan.h> + +#include <vnet/ethernet/arp.h> #include <vnet/l2/l2_input.h> #include <vnet/l2/l2_output.h> #include <vnet/l2/feat_bitmap.h> +#include <vnet/l2/l2_fib.h> +#include <vnet/fib/fib_table.h> +#include <vnet/ip/ip_neighbor.h> + +static const char *gbp_endpoint_attr_names[] = GBP_ENDPOINT_ATTR_NAMES; + +/** + * EP DBs + */ +gbp_ep_db_t gbp_ep_db; + +vlib_log_class_t gbp_ep_logger; -gbp_ep_by_itf_db_t gbp_ep_by_itf_db; -gbp_ep_by_mac_itf_db_t gbp_ep_by_mac_itf_db; -gbp_ep_by_ip_itf_db_t gbp_ep_by_ip_itf_db; +#define GBP_ENDPOINT_DBG(...) \ + vlib_log_debug (gbp_ep_logger, __VA_ARGS__); + +#define GBP_ENDPOINT_INFO(...) \ + vlib_log_notice (gbp_ep_logger, __VA_ARGS__); + +/** + * GBP Endpoint inactive timeout (in seconds) + * If a dynamically learned Endpoint has not been heard from in this + * amount of time it is considered inactive and discarded + */ +static u32 GBP_ENDPOINT_INACTIVE_TIME = 30; /** * Pool of GBP endpoints */ gbp_endpoint_t *gbp_endpoint_pool; -/* void */ -/* gbp_itf_epg_update (u32 sw_if_index, epg_id_t src_epg, u8 do_policy) */ -/* { */ -/* vec_validate_init_empty (gbp_itf_to_epg_db.gte_vec, */ -/* sw_if_index, ITF_INVALID); */ - -/* if (0 == gbp_itf_to_epg_db.gte_vec[sw_if_index].gi_ref_count) */ -/* { */ -/* l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_SRC_CLASSIFY, */ -/* 1); */ -/* l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_FWD, 1); */ -/* if (do_policy) */ -/* l2output_intf_bitmap_enable (sw_if_index, L2OUTPUT_FEAT_GBP_POLICY, */ -/* 1); */ -/* } */ -/* gbp_itf_to_epg_db.gte_vec[sw_if_index].gi_epg = src_epg; */ -/* gbp_itf_to_epg_db.gte_vec[sw_if_index].gi_ref_count++; */ -/* } */ - -/* void */ -/* gbp_itf_epg_delete (u32 sw_if_index) */ -/* { */ -/* if (vec_len (gbp_itf_to_epg_db.gte_vec) <= sw_if_index) */ -/* return; */ - -/* if (1 == gbp_itf_to_epg_db.gte_vec[sw_if_index].gi_ref_count) */ -/* { */ -/* gbp_itf_to_epg_db.gte_vec[sw_if_index].gi_epg = EPG_INVALID; */ - -/* l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_SRC_CLASSIFY, */ -/* 0); */ -/* l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_FWD, 0); */ -/* l2output_intf_bitmap_enable (sw_if_index, L2OUTPUT_FEAT_GBP_POLICY, 0); */ -/* } */ -/* gbp_itf_to_epg_db.gte_vec[sw_if_index].gi_ref_count--; */ -/* } */ - -static void -gbp_endpoint_mk_key_mac_itf (const mac_address_t * mac, - u32 sw_if_index, clib_bihash_kv_16_8_t * key) -{ - key->key[0] = mac_address_as_u64 (mac); - key->key[1] = sw_if_index; -} +/** + * A count of the number of dynamic entries + */ +static u32 gbp_n_learnt_endpoints; -static void -gbp_endpoint_extract_key_mac_itf (const clib_bihash_kv_16_8_t * key, - mac_address_t * mac, u32 * sw_if_index) -{ - mac_address_from_u64 (key->key[0], mac); - *sw_if_index = key->key[1]; -} +#define FOR_EACH_GBP_ENDPOINT_ATTR(_item) \ + for (_item = GBP_ENDPOINT_ATTR_FIRST; \ + _item < GBP_ENDPOINT_ATTR_LAST; \ + _item++) -gbp_endpoint_t * -gbp_endpoint_find_mac_itf (const mac_address_t * mac, u32 sw_if_index) +u8 * +format_gbp_endpoint_flags (u8 * s, va_list * args) { - clib_bihash_kv_16_8_t key, value; - int rv; - - gbp_endpoint_mk_key_mac_itf (mac, sw_if_index, &key); + gbp_endpoint_attr_t attr; + gbp_endpoint_flags_t flags = va_arg (*args, gbp_endpoint_flags_t); - rv = - clib_bihash_search_16_8 (&gbp_ep_by_mac_itf_db.gte_table, &key, &value); + FOR_EACH_GBP_ENDPOINT_ATTR (attr) + { + if ((1 << attr) & flags) + { + s = format (s, "%s,", gbp_endpoint_attr_names[attr]); + } + } - if (0 != rv) - return NULL; + return (s); +} - return (gbp_endpoint_get (value.value)); +int +gbp_endpoint_is_remote (const gbp_endpoint_t * ge) +{ + return (ge->ge_flags & GBP_ENDPOINT_FLAG_REMOTE); } static void -gbp_endpoint_mk_key_ip_itf (const ip46_address_t * ip, - u32 sw_if_index, clib_bihash_kv_24_8_t * key) +gbp_endpoint_extract_key_mac_itf (const clib_bihash_kv_16_8_t * key, + mac_address_t * mac, u32 * sw_if_index) { - key->key[0] = ip->as_u64[0]; - key->key[1] = ip->as_u64[1]; - key->key[2] = sw_if_index; + mac_address_from_u64 (key->key[0], mac); + *sw_if_index = key->key[1]; } static void @@ -121,14 +110,14 @@ gbp_endpoint_extract_key_ip_itf (const clib_bihash_kv_24_8_t * key, } gbp_endpoint_t * -gbp_endpoint_find_ip_itf (const ip46_address_t * ip, u32 sw_if_index) +gbp_endpoint_find_ip (const ip46_address_t * ip, u32 fib_index) { clib_bihash_kv_24_8_t key, value; int rv; - gbp_endpoint_mk_key_ip_itf (ip, sw_if_index, &key); + gbp_endpoint_mk_key_ip (ip, fib_index, &key); - rv = clib_bihash_search_24_8 (&gbp_ep_by_ip_itf_db.gte_table, &key, &value); + rv = clib_bihash_search_24_8 (&gbp_ep_db.ged_by_ip_rd, &key, &value); if (0 != rv) return NULL; @@ -136,238 +125,552 @@ gbp_endpoint_find_ip_itf (const ip46_address_t * ip, u32 sw_if_index) return (gbp_endpoint_get (value.value)); } -gbp_endpoint_t * -gbp_endpoint_find_itf (u32 sw_if_index) +static void +gbp_endpoint_add_itf (u32 sw_if_index, index_t gei) { - /* if (vec_len(gbp_ep_by_itf_db.gte_vec) >= sw_if_index) */ - /* return NULL; */ + vec_validate_init_empty (gbp_ep_db.ged_by_sw_if_index, sw_if_index, ~0); - /* vec_search(gbp_ep_by_itf_db.gte_vec[sw_if_index], */ - /* return (gbp_endpoint_get(gbp_ep_by_itf_db.gte_vec[sw_if_index][0])); */ - return (NULL); + gbp_ep_db.ged_by_sw_if_index[sw_if_index] = gei; } static bool -gbp_endpoint_add_mac_itf (const mac_address_t * mac, - u32 sw_if_index, index_t gbpei) +gbp_endpoint_add_mac (const mac_address_t * mac, u32 bd_index, index_t gei) { clib_bihash_kv_16_8_t key; int rv; - gbp_endpoint_mk_key_mac_itf (mac, sw_if_index, &key); - key.value = gbpei; + gbp_endpoint_mk_key_mac (mac->bytes, bd_index, &key); + key.value = gei; + + rv = clib_bihash_add_del_16_8 (&gbp_ep_db.ged_by_mac_bd, &key, 1); - rv = clib_bihash_add_del_16_8 (&gbp_ep_by_mac_itf_db.gte_table, &key, 1); return (0 == rv); } static bool -gbp_endpoint_add_ip_itf (const ip46_address_t * ip, - u32 sw_if_index, index_t gbpei) +gbp_endpoint_add_ip (const ip46_address_t * ip, u32 fib_index, index_t gei) { clib_bihash_kv_24_8_t key; int rv; - gbp_endpoint_mk_key_ip_itf (ip, sw_if_index, &key); - key.value = gbpei; + gbp_endpoint_mk_key_ip (ip, fib_index, &key); + key.value = gei; - rv = clib_bihash_add_del_24_8 (&gbp_ep_by_ip_itf_db.gte_table, &key, 1); + rv = clib_bihash_add_del_24_8 (&gbp_ep_db.ged_by_ip_rd, &key, 1); return (0 == rv); } static void -gbp_endpoint_add_itf (u32 sw_if_index, index_t gbpei) -{ - vec_validate_init_empty (gbp_ep_by_itf_db.gte_vec, sw_if_index, - INDEX_INVALID); - - if (INDEX_INVALID == gbp_ep_by_itf_db.gte_vec[sw_if_index]) - { - l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_SRC_CLASSIFY, - 1); - l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_FWD, 1); - l2output_intf_bitmap_enable (sw_if_index, L2OUTPUT_FEAT_GBP_POLICY, 1); - } - gbp_ep_by_itf_db.gte_vec[sw_if_index] = gbpei; -} - -static void -gbp_endpoint_del_mac_itf (const mac_address_t * mac, u32 sw_if_index) +gbp_endpoint_del_mac (const mac_address_t * mac, u32 bd_index) { clib_bihash_kv_16_8_t key; - gbp_endpoint_mk_key_mac_itf (mac, sw_if_index, &key); + gbp_endpoint_mk_key_mac (mac->bytes, bd_index, &key); - clib_bihash_add_del_16_8 (&gbp_ep_by_mac_itf_db.gte_table, &key, 0); + clib_bihash_add_del_16_8 (&gbp_ep_db.ged_by_mac_bd, &key, 0); } static void -gbp_endpoint_del_ip_itf (const ip46_address_t * ip, u32 sw_if_index) +gbp_endpoint_del_ip (const ip46_address_t * ip, u32 fib_index) { clib_bihash_kv_24_8_t key; - gbp_endpoint_mk_key_ip_itf (ip, sw_if_index, &key); + gbp_endpoint_mk_key_ip (ip, fib_index, &key); - clib_bihash_add_del_24_8 (&gbp_ep_by_ip_itf_db.gte_table, &key, 0); + clib_bihash_add_del_24_8 (&gbp_ep_db.ged_by_ip_rd, &key, 0); } -static void -gbp_endpoint_del_itf (u32 sw_if_index) +static index_t +gbp_endpoint_index (const gbp_endpoint_t * ge) { - if (vec_len (gbp_ep_by_itf_db.gte_vec) <= sw_if_index) - return; + return (ge - gbp_endpoint_pool); +} - l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_SRC_CLASSIFY, 0); - l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_FWD, 0); - l2output_intf_bitmap_enable (sw_if_index, L2OUTPUT_FEAT_GBP_POLICY, 0); +static ip46_type_t +ip46_address_get_type (const ip46_address_t * a) +{ + return (ip46_address_is_ip4 (a) ? IP46_TYPE_IP4 : IP46_TYPE_IP6); +} - gbp_ep_by_itf_db.gte_vec[sw_if_index] = INDEX_INVALID; +static ip46_type_t +ip46_address_get_len (const ip46_address_t * a) +{ + return (ip46_address_is_ip4 (a) ? 32 : 128); } -static index_t -gbp_endpoint_index (const gbp_endpoint_t * gbpe) +static gbp_endpoint_t * +gbp_endpoint_alloc (epg_id_t epg_id, + index_t ggi, u32 sw_if_index, gbp_endpoint_flags_t flags, + const ip46_address_t * tun_src, + const ip46_address_t * tun_dst) { - return (gbpe - gbp_endpoint_pool); + gbp_endpoint_t *ge; + + pool_get_zero (gbp_endpoint_pool, ge); + + ge->ge_epg = ggi; + ge->ge_epg_id = epg_id; + ge->ge_flags = flags; + ge->ge_sw_if_index = sw_if_index; + ge->ge_last_time = vlib_time_now (vlib_get_main ()); + + gbp_endpoint_group_find_and_lock (epg_id); + + if (gbp_endpoint_is_remote (ge)) + { + if (NULL != tun_src) + ip46_address_copy (&ge->tun.ge_src, tun_src); + if (NULL != tun_dst) + ip46_address_copy (&ge->tun.ge_dst, tun_dst); + + /* + * the input interface may be the parent GBP-vxlan interface, + * create a child vlxan-gbp tunnel and use that as the endpoint's + * interface. + */ + switch (gbp_vxlan_tunnel_get_type (sw_if_index)) + { + case GBP_VXLAN_TEMPLATE_TUNNEL: + ge->tun.ge_parent_sw_if_index = sw_if_index; + ge->ge_sw_if_index = + gbp_vxlan_tunnel_clone_and_lock (sw_if_index, tun_src, tun_dst); + break; + case VXLAN_GBP_TUNNEL: + ge->tun.ge_parent_sw_if_index = + vxlan_gbp_tunnel_get_parent (sw_if_index); + ge->ge_sw_if_index = sw_if_index; + vxlan_gbp_tunnel_lock (ge->ge_sw_if_index); + break; + } + } + + return (ge); } int gbp_endpoint_update (u32 sw_if_index, const ip46_address_t * ips, - const mac_address_t * mac, epg_id_t epg_id, u32 * handle) + const mac_address_t * mac, + epg_id_t epg_id, + gbp_endpoint_flags_t flags, + const ip46_address_t * tun_src, + const ip46_address_t * tun_dst, u32 * handle) { - gbp_endpoint_group_t *gepg; - const ip46_address_t *ip; - gbp_endpoint_t *gbpe; + gbp_endpoint_group_t *gg; + gbp_endpoint_t *ge; + index_t ggi, gei; + + if (~0 == sw_if_index) + return (VNET_API_ERROR_INVALID_SW_IF_INDEX); - gbpe = NULL; - gepg = gbp_endpoint_group_find (epg_id); + ge = NULL; + ggi = gbp_endpoint_group_find_and_lock (epg_id); - if (NULL == gepg) + if (INDEX_INVALID == ggi) return (VNET_API_ERROR_NO_SUCH_ENTRY); + gg = gbp_endpoint_group_get (ggi); + /* - * find an existing endpoint matching one of the key types + * L2 EP */ - if (NULL != mac) - { - gbpe = gbp_endpoint_find_mac_itf (mac, sw_if_index); - } - if (NULL == gbpe && NULL != ips) - { - vec_foreach (ip, ips) - { - gbpe = gbp_endpoint_find_ip_itf (ip, sw_if_index); - - if (NULL != gbpe) - break; - } - } - if (NULL == gbpe) + if (NULL != mac && !mac_address_is_zero (mac)) { - gbpe = gbp_endpoint_find_itf (sw_if_index); + /* + * find an existing endpoint matching one of the key types + */ + ge = gbp_endpoint_find_mac (mac->bytes, gg->gg_bd_index); + if (NULL == ge) + { + /* + * new entry + */ + ge = gbp_endpoint_alloc (epg_id, ggi, sw_if_index, flags, + tun_src, tun_dst); + gei = gbp_endpoint_index (ge); + mac_address_copy (&ge->ge_mac, mac); + + ge->ge_itf = gbp_itf_add_and_lock (ge->ge_sw_if_index, + gg->gg_bd_index); + + gbp_itf_set_l2_input_feature (ge->ge_itf, gei, + L2INPUT_FEAT_GBP_FWD); + + if (gbp_endpoint_is_remote (ge)) + { + gbp_itf_set_l2_output_feature (ge->ge_itf, gei, + L2OUTPUT_FEAT_GBP_POLICY_MAC); + } + else + { + gbp_endpoint_add_itf (ge->ge_sw_if_index, gei); + gbp_itf_set_l2_output_feature (ge->ge_itf, gei, + L2OUTPUT_FEAT_GBP_POLICY_PORT); + } + + gbp_endpoint_add_mac (mac, gg->gg_bd_index, gei); + + l2fib_add_entry (mac->bytes, gg->gg_bd_index, ge->ge_sw_if_index, + L2FIB_ENTRY_RESULT_FLAG_STATIC); + } + else + { + /* + * update existing entry.. + */ + ge->ge_flags = flags; + gei = gbp_endpoint_index (ge); + goto out; + } } - if (NULL == gbpe) + /* + * L3 EP + */ + if (NULL != ips && !ip46_address_is_zero (ips)) { - index_t gbpei; + const ip46_address_t *ip; + fib_protocol_t fproto; + gbp_endpoint_t *l3_ge; u32 ii; + /* - * new entry + * look for a matching EP by any of the address + * An EP's IP addresses cannot change so we can search based on + * the first */ - pool_get (gbp_endpoint_pool, gbpe); - gbpei = gbp_endpoint_index (gbpe); + fproto = fib_proto_from_ip46 (ip46_address_get_type (&ips[0])); - gbpe->ge_epg_id = epg_id; - gbpe->ge_sw_if_index = sw_if_index; - gbp_endpoint_add_itf (gbpe->ge_sw_if_index, gbpei); - - if (NULL != mac) + l3_ge = gbp_endpoint_find_ip (&ips[0], + gbp_endpoint_group_get_fib_index (gg, + fproto)); + if (NULL == l3_ge) { - gbpe->ge_mac = *mac; - - // FIXME ERROR - gbp_endpoint_add_mac_itf (mac, sw_if_index, gbpei); + if (NULL == ge) + { + ge = gbp_endpoint_alloc (epg_id, ggi, sw_if_index, flags, + tun_src, tun_dst); + ge->ge_itf = gbp_itf_add_and_lock (sw_if_index, ~0); + } + else + /* L2 EP with IPs */ + gei = gbp_endpoint_index (ge); } - - if (NULL != ips) + else { - vec_validate (gbpe->ge_ips, vec_len (ips) - 1); - vec_foreach_index (ii, ips) + /* modify */ + ge = l3_ge; + ge->ge_flags = flags; + gei = gbp_endpoint_index (ge); + goto out; + } + + gei = gbp_endpoint_index (ge); + ge->ge_ips = ips; + vec_validate (ge->ge_adjs, vec_len (ips) - 1); + + vec_foreach_index (ii, ge->ge_ips) + { + ethernet_header_t *eth; + ip46_type_t ip_type; + u32 ip_sw_if_index; + u8 *rewrite; + + rewrite = NULL; + ip = &ge->ge_ips[ii]; + ip_type = ip46_address_get_type (ip); + fproto = fib_proto_from_ip46 (ip_type); + + bd_add_del_ip_mac (gg->gg_bd_index, ip_type, ip, &ge->ge_mac, 1); + + // FIXME - check error + gbp_endpoint_add_ip (ip, + gbp_endpoint_group_get_fib_index (gg, fproto), + gei); + + /* + * add a host route via the EPG's BVI we need this because the + * adj fib does not install, due to cover refinement check, since + * the BVI's prefix is /32 + */ + fib_prefix_t pfx = { + .fp_proto = fproto, + .fp_len = ip46_address_get_len (ip), + .fp_addr = *ip, + }; + vec_validate (rewrite, sizeof (*eth) - 1); + eth = (ethernet_header_t *) rewrite; + + eth->type = clib_host_to_net_u16 ((fproto == FIB_PROTOCOL_IP4 ? + ETHERNET_TYPE_IP4 : + ETHERNET_TYPE_IP6)); + + if (gbp_endpoint_is_remote (ge)) { - ip46_address_copy (&gbpe->ge_ips[ii], &ips[ii]); + /* + * for dynamic EPs we msut add the IP adjacency via the learned + * tunnel since the BD will not contain the EP's MAC since it was + * L3 learned. The dst MAC address used is the 'BD's MAC'. + */ + ip_sw_if_index = ge->ge_sw_if_index; + + mac_address_to_bytes (gbp_route_domain_get_local_mac (), + eth->src_address); + mac_address_to_bytes (gbp_route_domain_get_remote_mac (), + eth->dst_address); + } + else + { + /* + * for the static EPs we add the IP adjacency via the BVI + * knowing that the BD has the MAC address to route to and + * that policy will be applied on egress to the EP's port + */ + ip_sw_if_index = gbp_endpoint_group_get_bvi (gg); + + clib_memcpy (eth->src_address, + vnet_sw_interface_get_hw_address (vnet_get_main (), + ip_sw_if_index), + sizeof (eth->src_address)); + mac_address_to_bytes (&ge->ge_mac, eth->dst_address); + } + + fib_table_entry_path_add + (gbp_endpoint_group_get_fib_index (gg, fproto), + &pfx, FIB_SOURCE_PLUGIN_LOW, + FIB_ENTRY_FLAG_NONE, + fib_proto_to_dpo (fproto), ip, ip_sw_if_index, + ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE); - // FIXME ERROR - gbp_endpoint_add_ip_itf (&ips[ii], sw_if_index, gbpei); + ge->ge_adjs[ii] = adj_nbr_add_or_lock_w_rewrite (fproto, + fib_proto_to_link + (fproto), ip, + ip_sw_if_index, + rewrite); + + if (gbp_endpoint_is_remote (ge)) + { + dpo_id_t policy_dpo = DPO_INVALID; /* - * send a gratuitous ARP on the EPG's uplink. this is done so - * that if this EP has moved from some other place in the - * 'fabric', upstream devices are informed + * interpose a policy DPO from the endpoint so that policy + * is applied */ - if (ip46_address_is_ip4 (&ips[ii])) + gbp_policy_dpo_add_or_lock (fib_proto_to_dpo (fproto), + gg->gg_id, ~0, &policy_dpo); + + fib_table_entry_special_dpo_add + (gbp_endpoint_group_get_fib_index (gg, fproto), + &pfx, + FIB_SOURCE_PLUGIN_HI, FIB_ENTRY_FLAG_INTERPOSE, &policy_dpo); + } + + /* + * send a gratuitous ARP on the EPG's uplink. this is done so + * that if this EP has moved from some other place in the + * 'fabric', upstream devices are informed + */ + if (!(gbp_endpoint_is_remote (ge)) && ~0 != gg->gg_uplink_sw_if_index) + { + gbp_endpoint_add_itf (sw_if_index, gei); + if (ip46_address_is_ip4 (ip)) send_ip4_garp_w_addr (vlib_get_main (), - &ips[ii].ip4, - gepg->gepg_uplink_sw_if_index); + &ip->ip4, gg->gg_uplink_sw_if_index); else send_ip6_na_w_addr (vlib_get_main (), - &ips[ii].ip6, - gepg->gepg_uplink_sw_if_index); + &ip->ip6, gg->gg_uplink_sw_if_index); } + } + } + + if (NULL == ge) + return (0); + + /* + * count the number of dynamic entries and kick off the scanner + * process is this is our first. + */ + if (gbp_endpoint_is_remote (ge)) + { + gbp_n_learnt_endpoints++; + + if (1 == gbp_n_learnt_endpoints) + { + vlib_process_signal_event (vlib_get_main (), + gbp_scanner_node.index, + GBP_ENDPOINT_SCAN_START, 0); } } else { /* - * update existing entry.. + * non-remote endpoints (i.e. those not arriving on iVXLAN + * tunnels) need to be classifed based on the the input interface. + * We enable the GBP-FWD feature only is the group has an uplink + * interface (on which the GBP-FWD feature would send UU traffic). */ - ASSERT (0); + l2input_feat_masks_t feats = L2INPUT_FEAT_GBP_SRC_CLASSIFY; + + if (~0 != gg->gg_uplink_sw_if_index) + feats |= L2INPUT_FEAT_GBP_FWD; + gbp_itf_set_l2_input_feature (ge->ge_itf, gbp_endpoint_index (ge), + feats); } +out: + + if (handle) + *handle = (ge - gbp_endpoint_pool); - *handle = (gbpe - gbp_endpoint_pool); + gbp_endpoint_group_unlock (ggi); + GBP_ENDPOINT_INFO ("update: %U", format_gbp_endpoint, gei); return (0); } void -gbp_endpoint_delete (u32 handle) +gbp_endpoint_delete (index_t gei) { - gbp_endpoint_t *gbpe; + gbp_endpoint_group_t *gg; + gbp_endpoint_t *ge; - if (pool_is_free_index (gbp_endpoint_pool, handle)) + if (pool_is_free_index (gbp_endpoint_pool, gei)) return; - gbpe = pool_elt_at_index (gbp_endpoint_pool, handle); + GBP_ENDPOINT_INFO ("delete: %U", format_gbp_endpoint, gei); - gbp_endpoint_del_itf (gbpe->ge_sw_if_index); + ge = gbp_endpoint_get (gei); + gg = gbp_endpoint_group_get (ge->ge_epg); - if (!mac_address_is_zero (&gbpe->ge_mac)) - { - gbp_endpoint_del_mac_itf (&gbpe->ge_mac, gbpe->ge_sw_if_index); - } + gbp_endpoint_del_mac (&ge->ge_mac, gg->gg_bd_index); + l2fib_del_entry (ge->ge_mac.bytes, gg->gg_bd_index, ge->ge_sw_if_index); + gbp_itf_set_l2_input_feature (ge->ge_itf, gei, (L2INPUT_FEAT_NONE)); + gbp_itf_set_l2_output_feature (ge->ge_itf, gei, L2OUTPUT_FEAT_NONE); - if (NULL != gbpe->ge_ips) + if (NULL != ge->ge_ips) { const ip46_address_t *ip; + index_t *ai; - vec_foreach (ip, gbpe->ge_ips) + vec_foreach (ai, ge->ge_adjs) { - gbp_endpoint_del_ip_itf (ip, gbpe->ge_sw_if_index); + adj_unlock (*ai); + } + vec_foreach (ip, ge->ge_ips) + { + fib_protocol_t fproto; + ip46_type_t ip_type; + + ip_type = ip46_address_get_type (ip); + fproto = fib_proto_from_ip46 (ip_type); + + gbp_endpoint_del_ip (ip, + gbp_endpoint_group_get_fib_index (gg, fproto)); + + bd_add_del_ip_mac (gg->gg_bd_index, ip_type, ip, &ge->ge_mac, 0); + + /* + * remove a host route via the EPG's BVI + */ + fib_prefix_t pfx = { + .fp_proto = fproto, + .fp_len = ip46_address_get_len (ip), + .fp_addr = *ip, + }; + + if (gbp_endpoint_is_remote (ge)) + { + fib_table_entry_special_remove + (gbp_endpoint_group_get_fib_index (gg, fproto), + &pfx, FIB_SOURCE_PLUGIN_HI); + } + + fib_table_entry_path_remove + (gbp_endpoint_group_get_fib_index (gg, fproto), + &pfx, FIB_SOURCE_PLUGIN_LOW, + fib_proto_to_dpo (fproto), ip, + (gbp_endpoint_is_remote (ge) ? + ge->ge_sw_if_index : + gbp_endpoint_group_get_bvi (gg)), + ~0, 1, FIB_ROUTE_PATH_FLAG_NONE); } } - pool_put (gbp_endpoint_pool, gbpe); + + if (ge->ge_flags & GBP_ENDPOINT_FLAG_LEARNT) + { + gbp_n_learnt_endpoints--; + + if (0 == gbp_n_learnt_endpoints) + { + vlib_process_signal_event (vlib_get_main (), + gbp_scanner_node.index, + GBP_ENDPOINT_SCAN_STOP, 0); + } + } + + gbp_itf_unlock (ge->ge_itf); + if (gbp_endpoint_is_remote (ge)) + { + vxlan_gbp_tunnel_unlock (ge->ge_sw_if_index); + } + gbp_endpoint_group_unlock (ge->ge_epg); + pool_put (gbp_endpoint_pool, ge); +} + +typedef struct gbp_endpoint_flush_ctx_t_ +{ + u32 sw_if_index; + index_t *geis; +} gbp_endpoint_flush_ctx_t; + +static walk_rc_t +gbp_endpoint_flush_cb (index_t gei, void *args) +{ + gbp_endpoint_flush_ctx_t *ctx = args; + gbp_endpoint_t *ge; + + ge = gbp_endpoint_get (gei); + + if (gbp_endpoint_is_remote (ge) && + ctx->sw_if_index == ge->tun.ge_parent_sw_if_index) + { + vec_add1 (ctx->geis, gei); + } + + return (WALK_CONTINUE); +} + +/** + * remove all learnt endpoints using the interface + */ +void +gbp_endpoint_flush (u32 sw_if_index) +{ + gbp_endpoint_flush_ctx_t ctx = { + .sw_if_index = sw_if_index, + }; + index_t *gei; + + gbp_endpoint_walk (gbp_endpoint_flush_cb, &ctx); + + vec_foreach (gei, ctx.geis) + { + gbp_endpoint_delete (*gei); + } + + vec_free (ctx.geis); } void gbp_endpoint_walk (gbp_endpoint_cb_t cb, void *ctx) { - gbp_endpoint_t *gbpe; + u32 index; /* *INDENT-OFF* */ - pool_foreach(gbpe, gbp_endpoint_pool, + pool_foreach_index(index, gbp_endpoint_pool, { - if (!cb(gbpe, ctx)) + if (!cb(index, ctx)) break; }); /* *INDENT-ON* */ @@ -380,7 +683,7 @@ gbp_endpoint_cli (vlib_main_t * vm, ip46_address_t ip = ip46_address_initializer, *ips = NULL; mac_address_t mac = ZERO_MAC_ADDRESS; vnet_main_t *vnm = vnet_get_main (); - epg_id_t epg_id = EPG_INVALID; + u32 epg_id = EPG_INVALID; u32 handle = INDEX_INVALID; u32 sw_if_index = ~0; u8 add = 1; @@ -418,7 +721,9 @@ gbp_endpoint_cli (vlib_main_t * vm, if (EPG_INVALID == epg_id) return clib_error_return (0, "EPG-ID must be specified"); - rv = gbp_endpoint_update (sw_if_index, ips, &mac, epg_id, &handle); + rv = + gbp_endpoint_update (sw_if_index, ips, &mac, epg_id, + GBP_ENDPOINT_FLAG_NONE, NULL, NULL, &handle); if (rv) return clib_error_return (0, "GBP Endpoint update returned %d", rv); @@ -457,37 +762,41 @@ VLIB_CLI_COMMAND (gbp_endpoint_cli_node, static) = { u8 * format_gbp_endpoint (u8 * s, va_list * args) { - index_t gbpei = va_arg (*args, index_t); - vnet_main_t *vnm = vnet_get_main (); + index_t gei = va_arg (*args, index_t); const ip46_address_t *ip; - gbp_endpoint_t *gbpe; + gbp_endpoint_t *ge; - gbpe = gbp_endpoint_get (gbpei); + ge = gbp_endpoint_get (gei); - s = format (s, "[@%d] ", gbpei); - s = - format (s, "%U", format_vnet_sw_if_index_name, vnm, gbpe->ge_sw_if_index); - s = format (s, ", IPs:["); + s = format (s, "[@%d] ", gei); + s = format (s, "IPs:["); - vec_foreach (ip, gbpe->ge_ips) + vec_foreach (ip, ge->ge_ips) { s = format (s, "%U, ", format_ip46_address, ip, IP46_TYPE_ANY); } s = format (s, "]"); - s = format (s, " MAC:%U", format_mac_address_t, &gbpe->ge_mac); - s = format (s, " EPG-ID:%d", gbpe->ge_epg_id); + s = format (s, " MAC:%U", format_mac_address_t, &ge->ge_mac); + s = format (s, " EPG-ID:%d", ge->ge_epg_id); + if (GBP_ENDPOINT_FLAG_NONE != ge->ge_flags) + { + s = format (s, " flags:%U", format_gbp_endpoint_flags, ge->ge_flags); + } + + s = format (s, " itf:[%U]", format_gbp_itf, ge->ge_itf); + s = format (s, " last-time:[%f]", ge->ge_last_time); return s; } static walk_rc_t -gbp_endpoint_show_one (gbp_endpoint_t * gbpe, void *ctx) +gbp_endpoint_show_one (index_t gei, void *ctx) { vlib_main_t *vm; vm = ctx; - vlib_cli_output (vm, " %U", format_gbp_endpoint, gbp_endpoint_index (gbpe)); + vlib_cli_output (vm, " %U", format_gbp_endpoint, gei); return (WALK_CONTINUE); } @@ -530,7 +839,7 @@ static clib_error_t * gbp_endpoint_show (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { - u32 sw_if_index, show_dbs, handle; + u32 show_dbs, handle; handle = INDEX_INVALID; show_dbs = 0; @@ -539,7 +848,7 @@ gbp_endpoint_show (vlib_main_t * vm, { if (unformat (input, "%d", &handle)) ; - else if (unformat (input, "db", &handle)) + else if (unformat (input, "db")) show_dbs = 1; else break; @@ -552,19 +861,10 @@ gbp_endpoint_show (vlib_main_t * vm, else if (show_dbs) { vlib_cli_output (vm, "\nDatabases:"); - clib_bihash_foreach_key_value_pair_24_8 (&gbp_ep_by_ip_itf_db.gte_table, + clib_bihash_foreach_key_value_pair_24_8 (&gbp_ep_db.ged_by_ip_rd, gbp_endpoint_walk_ip_itf, vm); clib_bihash_foreach_key_value_pair_16_8 - (&gbp_ep_by_mac_itf_db.gte_table, gbp_endpoint_walk_mac_itf, vm); - - vec_foreach_index (sw_if_index, gbp_ep_by_itf_db.gte_vec) - { - if (INDEX_INVALID != gbp_ep_by_itf_db.gte_vec[sw_if_index]) - vlib_cli_output (vm, " {%U} -> %d", - format_vnet_sw_if_index_name, vnet_get_main (), - sw_if_index, - gbp_ep_by_itf_db.gte_vec[sw_if_index]); - } + (&gbp_ep_db.ged_by_mac_bd, gbp_endpoint_walk_mac_itf, vm); } else { @@ -590,20 +890,161 @@ VLIB_CLI_COMMAND (gbp_endpoint_show_node, static) = { }; /* *INDENT-ON* */ +static void +gbp_endpoint_check (index_t gei, f64 start_time) +{ + gbp_endpoint_t *ge; + + ge = gbp_endpoint_get (gei); + + GBP_ENDPOINT_DBG ("scan at:%f -> %U", start_time, format_gbp_endpoint, gei); + + if ((ge->ge_flags & GBP_ENDPOINT_FLAG_LEARNT) && + ((start_time - ge->ge_last_time) > GBP_ENDPOINT_INACTIVE_TIME)) + { + gbp_endpoint_delete (gei); + } +} + +static void +gbp_endpoint_scan_l2 (vlib_main_t * vm) +{ + clib_bihash_16_8_t *gte_table = &gbp_ep_db.ged_by_mac_bd; + f64 last_start, start_time, delta_t; + int i, j, k; + + delta_t = 0; + last_start = start_time = vlib_time_now (vm); + + for (i = 0; i < gte_table->nbuckets; i++) + { + clib_bihash_bucket_16_8_t *b; + clib_bihash_value_16_8_t *v; + + /* allow no more than 20us without a pause */ + delta_t = vlib_time_now (vm) - last_start; + if (delta_t > 20e-6) + { + /* suspend for 100 us */ + vlib_process_suspend (vm, 100e-6); + last_start = vlib_time_now (vm); + } + + b = >e_table->buckets[i]; + if (b->offset == 0) + continue; + v = clib_bihash_get_value_16_8 (gte_table, b->offset); + + for (j = 0; j < (1 << b->log2_pages); j++) + { + for (k = 0; k < BIHASH_KVP_PER_PAGE; k++) + { + if (clib_bihash_is_free_16_8 (&v->kvp[k])) + continue; + + gbp_endpoint_check (v->kvp[k].value, start_time); + + /* + * Note: we may have just freed the bucket's backing + * storage, so check right here... + */ + if (b->offset == 0) + goto doublebreak; + } + v++; + } + doublebreak: + ; + } +} + +static void +gbp_endpoint_scan_l3 (vlib_main_t * vm) +{ + clib_bihash_24_8_t *gte_table = &gbp_ep_db.ged_by_ip_rd; + f64 last_start, start_time, delta_t; + int i, j, k; + + delta_t = 0; + last_start = start_time = vlib_time_now (vm); + + for (i = 0; i < gte_table->nbuckets; i++) + { + clib_bihash_bucket_24_8_t *b; + clib_bihash_value_24_8_t *v; + + /* allow no more than 20us without a pause */ + delta_t = vlib_time_now (vm) - last_start; + if (delta_t > 20e-6) + { + /* suspend for 100 us */ + vlib_process_suspend (vm, 100e-6); + last_start = vlib_time_now (vm); + } + + b = >e_table->buckets[i]; + if (b->offset == 0) + continue; + v = clib_bihash_get_value_24_8 (gte_table, b->offset); + + for (j = 0; j < (1 << b->log2_pages); j++) + { + for (k = 0; k < BIHASH_KVP_PER_PAGE; k++) + { + if (clib_bihash_is_free_24_8 (&v->kvp[k])) + continue; + + gbp_endpoint_check (v->kvp[k].value, start_time); + + /* + * Note: we may have just freed the bucket's backing + * storage, so check right here... + */ + if (b->offset == 0) + goto doublebreak; + } + v++; + } + doublebreak: + ; + } +} + +void +gbp_endpoint_scan (vlib_main_t * vm) +{ + gbp_endpoint_scan_l2 (vm); + gbp_endpoint_scan_l3 (vm); +} + +void +gbp_learn_set_inactive_threshold (u32 threshold) +{ + GBP_ENDPOINT_INACTIVE_TIME = threshold; +} + +f64 +gbp_endpoint_scan_threshold (void) +{ + return (GBP_ENDPOINT_INACTIVE_TIME); +} + #define GBP_EP_HASH_NUM_BUCKETS (2 * 1024) #define GBP_EP_HASH_MEMORY_SIZE (1 << 20) static clib_error_t * gbp_endpoint_init (vlib_main_t * vm) { - clib_bihash_init_24_8 (&gbp_ep_by_ip_itf_db.gte_table, - "GBP Endpoints - IP/Interface", + clib_bihash_init_24_8 (&gbp_ep_db.ged_by_ip_rd, + "GBP Endpoints - IP/RD", GBP_EP_HASH_NUM_BUCKETS, GBP_EP_HASH_MEMORY_SIZE); - clib_bihash_init_16_8 (&gbp_ep_by_mac_itf_db.gte_table, - "GBP Endpoints - MAC/Interface", + clib_bihash_init_16_8 (&gbp_ep_db.ged_by_mac_bd, + "GBP Endpoints - MAC/BD", GBP_EP_HASH_NUM_BUCKETS, GBP_EP_HASH_MEMORY_SIZE); + gbp_ep_logger = vlib_log_register_class ("gbp", "ep"); + return (NULL); } |