diff options
Diffstat (limited to 'extras/deprecated/plugins/gbp/gbp_bridge_domain.c')
| -rw-r--r-- | extras/deprecated/plugins/gbp/gbp_bridge_domain.c | 503 |
1 files changed, 503 insertions, 0 deletions
diff --git a/extras/deprecated/plugins/gbp/gbp_bridge_domain.c b/extras/deprecated/plugins/gbp/gbp_bridge_domain.c new file mode 100644 index 00000000000..279169abb1d --- /dev/null +++ b/extras/deprecated/plugins/gbp/gbp_bridge_domain.c @@ -0,0 +1,503 @@ +/* + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <plugins/gbp/gbp_bridge_domain.h> +#include <plugins/gbp/gbp_route_domain.h> +#include <plugins/gbp/gbp_endpoint.h> +#include <plugins/gbp/gbp_learn.h> +#include <plugins/gbp/gbp_itf.h> + +#include <vnet/dpo/dvr_dpo.h> +#include <vnet/fib/fib_table.h> +#include <vnet/l2/l2_input.h> +#include <vnet/l2/feat_bitmap.h> +#include <vnet/l2/l2_bvi.h> +#include <vnet/l2/l2_fib.h> + +/** + * Pool of GBP bridge_domains + */ +gbp_bridge_domain_t *gbp_bridge_domain_pool; + +/** + * DB of bridge_domains + */ +gbp_bridge_domain_db_t gbp_bridge_domain_db; + +/** + * Map of BD index to contract scope + */ +gbp_scope_t *gbp_scope_by_bd_index; + +/** + * logger + */ +vlib_log_class_t gb_logger; + +#define GBP_BD_DBG(...) \ + vlib_log_debug (gb_logger, __VA_ARGS__); + +index_t +gbp_bridge_domain_index (const gbp_bridge_domain_t * gbd) +{ + return (gbd - gbp_bridge_domain_pool); +} + +static void +gbp_bridge_domain_lock (index_t i) +{ + gbp_bridge_domain_t *gb; + + gb = gbp_bridge_domain_get (i); + gb->gb_locks++; +} + +u32 +gbp_bridge_domain_get_bd_id (index_t gbdi) +{ + gbp_bridge_domain_t *gb; + + gb = gbp_bridge_domain_get (gbdi); + + return (gb->gb_bd_id); +} + +static index_t +gbp_bridge_domain_find (u32 bd_id) +{ + uword *p; + + p = hash_get (gbp_bridge_domain_db.gbd_by_bd_id, bd_id); + + if (NULL != p) + return p[0]; + + return (INDEX_INVALID); +} + +index_t +gbp_bridge_domain_find_and_lock (u32 bd_id) +{ + uword *p; + + p = hash_get (gbp_bridge_domain_db.gbd_by_bd_id, bd_id); + + if (NULL != p) + { + gbp_bridge_domain_lock (p[0]); + return p[0]; + } + return (INDEX_INVALID); +} + +static void +gbp_bridge_domain_db_add (gbp_bridge_domain_t * gb) +{ + index_t gbi = gb - gbp_bridge_domain_pool; + + hash_set (gbp_bridge_domain_db.gbd_by_bd_id, gb->gb_bd_id, gbi); + vec_validate_init_empty (gbp_bridge_domain_db.gbd_by_bd_index, + gb->gb_bd_index, INDEX_INVALID); + gbp_bridge_domain_db.gbd_by_bd_index[gb->gb_bd_index] = gbi; +} + +static void +gbp_bridge_domain_db_remove (gbp_bridge_domain_t * gb) +{ + hash_unset (gbp_bridge_domain_db.gbd_by_bd_id, gb->gb_bd_id); + gbp_bridge_domain_db.gbd_by_bd_index[gb->gb_bd_index] = INDEX_INVALID; +} + +u8 * +format_gbp_bridge_domain_flags (u8 * s, va_list * args) +{ + gbp_bridge_domain_flags_t gf = va_arg (*args, gbp_bridge_domain_flags_t); + + if (gf) + { + if (gf & GBP_BD_FLAG_DO_NOT_LEARN) + s = format (s, "do-not-learn "); + if (gf & GBP_BD_FLAG_UU_FWD_DROP) + s = format (s, "uu-fwd-drop "); + if (gf & GBP_BD_FLAG_MCAST_DROP) + s = format (s, "mcast-drop "); + if (gf & GBP_BD_FLAG_UCAST_ARP) + s = format (s, "ucast-arp "); + } + else + { + s = format (s, "none"); + } + return (s); +} + +static u8 * +format_gbp_bridge_domain_ptr (u8 * s, va_list * args) +{ + gbp_bridge_domain_t *gb = va_arg (*args, gbp_bridge_domain_t *); + vnet_main_t *vnm = vnet_get_main (); + + if (NULL != gb) + s = + format (s, + "[%d] bd:[%d,%d], bvi:%U uu-flood:%U bm-flood:%U flags:%U locks:%d", + gb - gbp_bridge_domain_pool, gb->gb_bd_id, gb->gb_bd_index, + format_vnet_sw_if_index_name, vnm, gb->gb_bvi_sw_if_index, + format_vnet_sw_if_index_name, vnm, gb->gb_uu_fwd_sw_if_index, + format_gbp_itf_hdl, gb->gb_bm_flood_itf, + format_gbp_bridge_domain_flags, gb->gb_flags, gb->gb_locks); + else + s = format (s, "NULL"); + + return (s); +} + +u8 * +format_gbp_bridge_domain (u8 * s, va_list * args) +{ + index_t gbi = va_arg (*args, index_t); + + s = + format (s, "%U", format_gbp_bridge_domain_ptr, + gbp_bridge_domain_get (gbi)); + + return (s); +} + +int +gbp_bridge_domain_add_and_lock (u32 bd_id, + u32 rd_id, + gbp_bridge_domain_flags_t flags, + u32 bvi_sw_if_index, + u32 uu_fwd_sw_if_index, + u32 bm_flood_sw_if_index) +{ + gbp_bridge_domain_t *gb; + index_t gbi; + + gbi = gbp_bridge_domain_find (bd_id); + + if (INDEX_INVALID == gbi) + { + gbp_route_domain_t *gr; + u32 bd_index; + + bd_index = bd_find_index (&bd_main, bd_id); + + if (~0 == bd_index) + return (VNET_API_ERROR_BD_NOT_MODIFIABLE); + + bd_flags_t bd_flags = L2_NONE; + if (flags & GBP_BD_FLAG_UU_FWD_DROP) + bd_flags |= L2_UU_FLOOD; + if (flags & GBP_BD_FLAG_MCAST_DROP) + bd_flags |= L2_FLOOD; + + pool_get (gbp_bridge_domain_pool, gb); + memset (gb, 0, sizeof (*gb)); + + gbi = gb - gbp_bridge_domain_pool; + gb->gb_bd_id = bd_id; + gb->gb_bd_index = bd_index; + gb->gb_uu_fwd_sw_if_index = uu_fwd_sw_if_index; + gb->gb_bvi_sw_if_index = bvi_sw_if_index; + gbp_itf_hdl_reset (&gb->gb_bm_flood_itf); + gb->gb_locks = 1; + gb->gb_flags = flags; + gb->gb_rdi = gbp_route_domain_find_and_lock (rd_id); + + /* + * set the scope from the BD's RD's scope + */ + gr = gbp_route_domain_get (gb->gb_rdi); + vec_validate (gbp_scope_by_bd_index, gb->gb_bd_index); + gbp_scope_by_bd_index[gb->gb_bd_index] = gr->grd_scope; + + /* + * Set the BVI and uu-flood interfaces into the BD + */ + gbp_bridge_domain_itf_add (gbi, gb->gb_bvi_sw_if_index, + L2_BD_PORT_TYPE_BVI); + + if ((!(flags & GBP_BD_FLAG_UU_FWD_DROP) || + (flags & GBP_BD_FLAG_UCAST_ARP)) && + ~0 != gb->gb_uu_fwd_sw_if_index) + gbp_bridge_domain_itf_add (gbi, gb->gb_uu_fwd_sw_if_index, + L2_BD_PORT_TYPE_UU_FWD); + + if (!(flags & GBP_BD_FLAG_MCAST_DROP) && ~0 != bm_flood_sw_if_index) + { + gb->gb_bm_flood_itf = + gbp_itf_l2_add_and_lock (bm_flood_sw_if_index, gbi); + gbp_itf_l2_set_input_feature (gb->gb_bm_flood_itf, + L2INPUT_FEAT_GBP_LEARN); + } + + /* + * unset any flag(s) set above + */ + bd_set_flags (vlib_get_main (), bd_index, bd_flags, 0); + + if (flags & GBP_BD_FLAG_UCAST_ARP) + { + bd_flags = L2_ARP_UFWD; + bd_set_flags (vlib_get_main (), bd_index, bd_flags, 1); + } + + /* + * Add the BVI's MAC to the L2FIB + */ + l2fib_add_entry (vnet_sw_interface_get_hw_address + (vnet_get_main (), gb->gb_bvi_sw_if_index), + gb->gb_bd_index, gb->gb_bvi_sw_if_index, + (L2FIB_ENTRY_RESULT_FLAG_STATIC | + L2FIB_ENTRY_RESULT_FLAG_BVI)); + + gbp_bridge_domain_db_add (gb); + } + else + { + gb = gbp_bridge_domain_get (gbi); + gb->gb_locks++; + } + + GBP_BD_DBG ("add: %U", format_gbp_bridge_domain_ptr, gb); + + return (0); +} + +void +gbp_bridge_domain_itf_add (index_t gbdi, + u32 sw_if_index, l2_bd_port_type_t type) +{ + gbp_bridge_domain_t *gb; + + gb = gbp_bridge_domain_get (gbdi); + + set_int_l2_mode (vlib_get_main (), vnet_get_main (), MODE_L2_BRIDGE, + sw_if_index, gb->gb_bd_index, type, 0, 0); + /* + * adding an interface to the bridge enables learning on the + * interface. Disable learning on the interface by default for gbp + * interfaces + */ + l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_LEARN, 0); +} + +void +gbp_bridge_domain_itf_del (index_t gbdi, + u32 sw_if_index, l2_bd_port_type_t type) +{ + gbp_bridge_domain_t *gb; + + gb = gbp_bridge_domain_get (gbdi); + + set_int_l2_mode (vlib_get_main (), vnet_get_main (), MODE_L3, sw_if_index, + gb->gb_bd_index, type, 0, 0); +} + +void +gbp_bridge_domain_unlock (index_t gbdi) +{ + gbp_bridge_domain_t *gb; + + gb = gbp_bridge_domain_get (gbdi); + + gb->gb_locks--; + + if (0 == gb->gb_locks) + { + GBP_BD_DBG ("destroy: %U", format_gbp_bridge_domain_ptr, gb); + + l2fib_del_entry (vnet_sw_interface_get_hw_address + (vnet_get_main (), gb->gb_bvi_sw_if_index), + gb->gb_bd_index, gb->gb_bvi_sw_if_index); + + gbp_bridge_domain_itf_del (gbdi, gb->gb_bvi_sw_if_index, + L2_BD_PORT_TYPE_BVI); + if (~0 != gb->gb_uu_fwd_sw_if_index) + gbp_bridge_domain_itf_del (gbdi, gb->gb_uu_fwd_sw_if_index, + L2_BD_PORT_TYPE_UU_FWD); + gbp_itf_unlock (&gb->gb_bm_flood_itf); + + gbp_bridge_domain_db_remove (gb); + gbp_route_domain_unlock (gb->gb_rdi); + + pool_put (gbp_bridge_domain_pool, gb); + } +} + +int +gbp_bridge_domain_delete (u32 bd_id) +{ + index_t gbi; + + GBP_BD_DBG ("del: %d", bd_id); + gbi = gbp_bridge_domain_find (bd_id); + + if (INDEX_INVALID != gbi) + { + GBP_BD_DBG ("del: %U", format_gbp_bridge_domain, gbi); + gbp_bridge_domain_unlock (gbi); + + return (0); + } + + return (VNET_API_ERROR_NO_SUCH_ENTRY); +} + +void +gbp_bridge_domain_walk (gbp_bridge_domain_cb_t cb, void *ctx) +{ + gbp_bridge_domain_t *gbpe; + + /* *INDENT-OFF* */ + pool_foreach (gbpe, gbp_bridge_domain_pool) + { + if (!cb(gbpe, ctx)) + break; + } + /* *INDENT-ON* */ +} + +static clib_error_t * +gbp_bridge_domain_cli (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + vnet_main_t *vnm = vnet_get_main (); + gbp_bridge_domain_flags_t flags; + u32 bm_flood_sw_if_index = ~0; + u32 uu_fwd_sw_if_index = ~0; + u32 bd_id = ~0, rd_id = ~0; + u32 bvi_sw_if_index = ~0; + u8 add = 1; + + flags = GBP_BD_FLAG_NONE; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "bvi %U", unformat_vnet_sw_interface, + vnm, &bvi_sw_if_index)) + ; + else if (unformat (input, "uu-fwd %U", unformat_vnet_sw_interface, + vnm, &uu_fwd_sw_if_index)) + ; + else if (unformat (input, "bm-flood %U", unformat_vnet_sw_interface, + vnm, &bm_flood_sw_if_index)) + ; + else if (unformat (input, "add")) + add = 1; + else if (unformat (input, "del")) + add = 0; + else if (unformat (input, "flags %d", &flags)) + ; + else if (unformat (input, "bd %d", &bd_id)) + ; + else if (unformat (input, "rd %d", &rd_id)) + ; + else + break; + } + + if (~0 == bd_id) + return clib_error_return (0, "BD-ID must be specified"); + if (~0 == rd_id) + return clib_error_return (0, "RD-ID must be specified"); + + if (add) + { + if (~0 == bvi_sw_if_index) + return clib_error_return (0, "interface must be specified"); + + gbp_bridge_domain_add_and_lock (bd_id, rd_id, + flags, + bvi_sw_if_index, + uu_fwd_sw_if_index, + bm_flood_sw_if_index); + } + else + gbp_bridge_domain_delete (bd_id); + + return (NULL); +} + +/*? + * Configure a GBP bridge-domain + * + * @cliexpar + * @cliexstart{gbp bridge-domain [del] bd <ID> bvi <interface> [uu-fwd <interface>] [bm-flood <interface>] [flags <flags>]} + * @cliexend + ?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (gbp_bridge_domain_cli_node, static) = { + .path = "gbp bridge-domain", + .short_help = "gbp bridge-domain [del] bd <ID> bvi <interface> [uu-fwd <interface>] [bm-flood <interface>] [flags <flags>]", + .function = gbp_bridge_domain_cli, +}; + +static int +gbp_bridge_domain_show_one (gbp_bridge_domain_t *gb, void *ctx) +{ + vlib_main_t *vm; + + vm = ctx; + vlib_cli_output (vm, " %U", format_gbp_bridge_domain_ptr, gb); + + return (1); +} + +static clib_error_t * +gbp_bridge_domain_show (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + vlib_cli_output (vm, "Bridge-Domains:"); + gbp_bridge_domain_walk (gbp_bridge_domain_show_one, vm); + + return (NULL); +} + + +/*? + * Show Group Based Policy Bridge_Domains and derived information + * + * @cliexpar + * @cliexstart{show gbp bridge_domain} + * @cliexend + ?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (gbp_bridge_domain_show_node, static) = { + .path = "show gbp bridge-domain", + .short_help = "show gbp bridge-domain\n", + .function = gbp_bridge_domain_show, +}; +/* *INDENT-ON* */ + +static clib_error_t * +gbp_bridge_domain_init (vlib_main_t * vm) +{ + gb_logger = vlib_log_register_class ("gbp", "bd"); + + return (NULL); +} + +VLIB_INIT_FUNCTION (gbp_bridge_domain_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |