diff options
Diffstat (limited to 'src/plugins/gbp/gbp_vxlan.c')
| -rw-r--r-- | src/plugins/gbp/gbp_vxlan.c | 654 |
1 files changed, 0 insertions, 654 deletions
diff --git a/src/plugins/gbp/gbp_vxlan.c b/src/plugins/gbp/gbp_vxlan.c deleted file mode 100644 index 77e4d7ac11b..00000000000 --- a/src/plugins/gbp/gbp_vxlan.c +++ /dev/null @@ -1,654 +0,0 @@ -/* - * 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_vxlan.h> -#include <plugins/gbp/gbp_learn.h> -#include <plugins/gbp/gbp_bridge_domain.h> -#include <plugins/gbp/gbp_route_domain.h> - -#include <vnet/vxlan-gbp/vxlan_gbp.h> -#include <vlibmemory/api.h> -#include <vnet/fib/fib_table.h> -#include <vlib/punt.h> - -/** - * A reference to a VXLAN-GBP tunnel created as a child/dependent tunnel - * of the template GBP-VXLAN tunnel - */ -typedef struct vxlan_tunnel_ref_t_ -{ - gbp_itf_hdl_t vxr_itf; - u32 vxr_sw_if_index; - index_t vxr_parent; - gbp_vxlan_tunnel_layer_t vxr_layer; -} vxlan_tunnel_ref_t; - -/** - * DB of added tunnels - */ -uword *gv_db; - -/** - * Logger - */ -static vlib_log_class_t gt_logger; - -/** - * Pool of template tunnels - */ -static gbp_vxlan_tunnel_t *gbp_vxlan_tunnel_pool; - -/** - * Pool of child tunnels - */ -static vxlan_tunnel_ref_t *vxlan_tunnel_ref_pool; - -/** - * DB of template interfaces by SW interface index - */ -static index_t *gbp_vxlan_tunnel_db; - -/** - * DB of child interfaces by SW interface index - */ -static index_t *vxlan_tunnel_ref_db; - -/** - * handle registered with the ;unt infra - */ -static vlib_punt_hdl_t punt_hdl; - -static char *gbp_vxlan_tunnel_layer_strings[] = { -#define _(n,s) [GBP_VXLAN_TUN_##n] = s, - foreach_gbp_vxlan_tunnel_layer -#undef _ -}; - -#define GBP_VXLAN_TUN_DBG(...) \ - vlib_log_debug (gt_logger, __VA_ARGS__); - - -gbp_vxlan_tunnel_t * -gbp_vxlan_tunnel_get (index_t gti) -{ - return (pool_elt_at_index (gbp_vxlan_tunnel_pool, gti)); -} - -static vxlan_tunnel_ref_t * -vxlan_tunnel_ref_get (index_t vxri) -{ - return (pool_elt_at_index (vxlan_tunnel_ref_pool, vxri)); -} - -static u8 * -format_vxlan_tunnel_ref (u8 * s, va_list * args) -{ - index_t vxri = va_arg (*args, u32); - vxlan_tunnel_ref_t *vxr; - - vxr = vxlan_tunnel_ref_get (vxri); - - s = format (s, "[%U]", format_gbp_itf_hdl, vxr->vxr_itf); - - return (s); -} - -static void -gdb_vxlan_dep_del (u32 sw_if_index) -{ - vxlan_tunnel_ref_t *vxr; - gbp_vxlan_tunnel_t *gt; - index_t vxri; - u32 pos; - - vxr = vxlan_tunnel_ref_get (vxlan_tunnel_ref_db[sw_if_index]); - vxri = vxr - vxlan_tunnel_ref_pool; - gt = gbp_vxlan_tunnel_get (vxr->vxr_parent); - - GBP_VXLAN_TUN_DBG ("del-dep:%U", format_vxlan_tunnel_ref, vxri); - - vxlan_tunnel_ref_db[vxr->vxr_sw_if_index] = INDEX_INVALID; - pos = vec_search (gt->gt_tuns, vxri); - - ASSERT (~0 != pos); - vec_del1 (gt->gt_tuns, pos); - - vnet_vxlan_gbp_tunnel_del (vxr->vxr_sw_if_index); - - pool_put (vxlan_tunnel_ref_pool, vxr); -} - -static gbp_itf_hdl_t -gdb_vxlan_dep_add (gbp_vxlan_tunnel_t * gt, - const ip46_address_t * src, const ip46_address_t * dst) -{ - vnet_vxlan_gbp_tunnel_add_del_args_t args = { - .is_add = 1, - .is_ip6 = !ip46_address_is_ip4 (src), - .vni = gt->gt_vni, - .src = *src, - .dst = *dst, - .instance = ~0, - .mode = (GBP_VXLAN_TUN_L2 == gt->gt_layer ? - VXLAN_GBP_TUNNEL_MODE_L2 : VXLAN_GBP_TUNNEL_MODE_L3), - }; - vxlan_tunnel_ref_t *vxr; - u32 sw_if_index; - index_t vxri; - int rv; - - sw_if_index = ~0; - rv = vnet_vxlan_gbp_tunnel_add_del (&args, &sw_if_index); - - if (VNET_API_ERROR_TUNNEL_EXIST == rv) - { - vxri = vxlan_tunnel_ref_db[sw_if_index]; - - vxr = vxlan_tunnel_ref_get (vxri); - gbp_itf_lock (vxr->vxr_itf); - } - else if (0 == rv) - { - ASSERT (~0 != sw_if_index); - GBP_VXLAN_TUN_DBG ("add-dep:%U %U %U %d", format_vnet_sw_if_index_name, - vnet_get_main (), sw_if_index, - format_ip46_address, src, IP46_TYPE_ANY, - format_ip46_address, dst, IP46_TYPE_ANY, gt->gt_vni); - - pool_get_zero (vxlan_tunnel_ref_pool, vxr); - - vxri = (vxr - vxlan_tunnel_ref_pool); - vxr->vxr_parent = gt - gbp_vxlan_tunnel_pool; - vxr->vxr_sw_if_index = sw_if_index; - vxr->vxr_layer = gt->gt_layer; - - /* - * store the child both on the parent's list and the global DB - */ - vec_add1 (gt->gt_tuns, vxri); - - vec_validate_init_empty (vxlan_tunnel_ref_db, - vxr->vxr_sw_if_index, INDEX_INVALID); - vxlan_tunnel_ref_db[vxr->vxr_sw_if_index] = vxri; - - if (GBP_VXLAN_TUN_L2 == vxr->vxr_layer) - { - l2output_feat_masks_t ofeat; - l2input_feat_masks_t ifeat; - gbp_bridge_domain_t *gbd; - - gbd = gbp_bridge_domain_get (gt->gt_gbd); - vxr->vxr_itf = gbp_itf_l2_add_and_lock_w_free - (vxr->vxr_sw_if_index, gt->gt_gbd, gdb_vxlan_dep_del); - - ofeat = L2OUTPUT_FEAT_GBP_POLICY_MAC; - ifeat = L2INPUT_FEAT_NONE; - - if (!(gbd->gb_flags & GBP_BD_FLAG_DO_NOT_LEARN)) - ifeat |= L2INPUT_FEAT_GBP_LEARN; - - gbp_itf_l2_set_output_feature (vxr->vxr_itf, ofeat); - gbp_itf_l2_set_input_feature (vxr->vxr_itf, ifeat); - } - else - { - vxr->vxr_itf = gbp_itf_l3_add_and_lock_w_free - (vxr->vxr_sw_if_index, gt->gt_grd, gdb_vxlan_dep_del); - - gbp_itf_l3_set_input_feature (vxr->vxr_itf, GBP_ITF_L3_FEAT_LEARN); - } - } - else - { - return (GBP_ITF_HDL_INVALID); - } - - return (vxr->vxr_itf); -} - -u32 -vxlan_gbp_tunnel_get_parent (u32 sw_if_index) -{ - ASSERT ((sw_if_index < vec_len (vxlan_tunnel_ref_db)) && - (INDEX_INVALID != vxlan_tunnel_ref_db[sw_if_index])); - - gbp_vxlan_tunnel_t *gt; - vxlan_tunnel_ref_t *vxr; - - vxr = vxlan_tunnel_ref_get (vxlan_tunnel_ref_db[sw_if_index]); - gt = gbp_vxlan_tunnel_get (vxr->vxr_parent); - - return (gt->gt_sw_if_index); -} - -gbp_itf_hdl_t -vxlan_gbp_tunnel_lock_itf (u32 sw_if_index) -{ - ASSERT ((sw_if_index < vec_len (vxlan_tunnel_ref_db)) && - (INDEX_INVALID != vxlan_tunnel_ref_db[sw_if_index])); - - vxlan_tunnel_ref_t *vxr; - - vxr = vxlan_tunnel_ref_get (vxlan_tunnel_ref_db[sw_if_index]); - - gbp_itf_lock (vxr->vxr_itf); - - return (vxr->vxr_itf); -} - - -gbp_vxlan_tunnel_type_t -gbp_vxlan_tunnel_get_type (u32 sw_if_index) -{ - if (sw_if_index < vec_len (vxlan_tunnel_ref_db) && - INDEX_INVALID != vxlan_tunnel_ref_db[sw_if_index]) - { - return (VXLAN_GBP_TUNNEL); - } - else if (sw_if_index < vec_len (gbp_vxlan_tunnel_db) && - INDEX_INVALID != gbp_vxlan_tunnel_db[sw_if_index]) - { - return (GBP_VXLAN_TEMPLATE_TUNNEL); - } - - ASSERT (0); - return (GBP_VXLAN_TEMPLATE_TUNNEL); -} - -gbp_itf_hdl_t -gbp_vxlan_tunnel_clone_and_lock (u32 sw_if_index, - const ip46_address_t * src, - const ip46_address_t * dst) -{ - gbp_vxlan_tunnel_t *gt; - index_t gti; - - gti = gbp_vxlan_tunnel_db[sw_if_index]; - - if (INDEX_INVALID == gti) - return (GBP_ITF_HDL_INVALID); - - gt = pool_elt_at_index (gbp_vxlan_tunnel_pool, gti); - - return (gdb_vxlan_dep_add (gt, src, dst)); -} - -void -vxlan_gbp_tunnel_unlock (u32 sw_if_index) -{ - /* vxlan_tunnel_ref_t *vxr; */ - /* index_t vxri; */ - - /* vxri = vxlan_tunnel_ref_db[sw_if_index]; */ - - /* ASSERT (vxri != INDEX_INVALID); */ - - /* vxr = vxlan_tunnel_ref_get (vxri); */ - - /* gdb_vxlan_dep_del (vxri); */ -} - -void -gbp_vxlan_walk (gbp_vxlan_cb_t cb, void *ctx) -{ - gbp_vxlan_tunnel_t *gt; - - /* *INDENT-OFF* */ - pool_foreach (gt, gbp_vxlan_tunnel_pool) - { - if (WALK_CONTINUE != cb(gt, ctx)) - break; - } - /* *INDENT-ON* */ -} - -static walk_rc_t -gbp_vxlan_tunnel_show_one (gbp_vxlan_tunnel_t * gt, void *ctx) -{ - vlib_cli_output (ctx, "%U", format_gbp_vxlan_tunnel, - gt - gbp_vxlan_tunnel_pool); - - return (WALK_CONTINUE); -} - -static u8 * -format_gbp_vxlan_tunnel_name (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - - return format (s, "gbp-vxlan-%d", dev_instance); -} - -u8 * -format_gbp_vxlan_tunnel_layer (u8 * s, va_list * args) -{ - gbp_vxlan_tunnel_layer_t gl = va_arg (*args, gbp_vxlan_tunnel_layer_t); - s = format (s, "%s", gbp_vxlan_tunnel_layer_strings[gl]); - - return (s); -} - -u8 * -format_gbp_vxlan_tunnel (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - CLIB_UNUSED (int verbose) = va_arg (*args, int); - gbp_vxlan_tunnel_t *gt = gbp_vxlan_tunnel_get (dev_instance); - index_t *vxri; - - s = format (s, " [%d] gbp-vxlan-tunnel: hw:%d sw:%d vni:%d %U", - dev_instance, gt->gt_hw_if_index, - gt->gt_sw_if_index, gt->gt_vni, - format_gbp_vxlan_tunnel_layer, gt->gt_layer); - if (GBP_VXLAN_TUN_L2 == gt->gt_layer) - s = format (s, " BD:%d gbd-index:%d", gt->gt_bd_rd_id, gt->gt_gbd); - else - s = format (s, " RD:%d grd-index:%d", gt->gt_bd_rd_id, gt->gt_grd); - - s = format (s, " dependents:"); - vec_foreach (vxri, gt->gt_tuns) - { - s = format (s, "\n %U, ", format_vxlan_tunnel_ref, *vxri); - } - - return s; -} - -typedef struct gbp_vxlan_tx_trace_t_ -{ - u32 vni; -} gbp_vxlan_tx_trace_t; - -u8 * -format_gbp_vxlan_tx_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - gbp_vxlan_tx_trace_t *t = va_arg (*args, gbp_vxlan_tx_trace_t *); - - s = format (s, "GBP-VXLAN: vni:%d", t->vni); - - return (s); -} - -clib_error_t * -gbp_vxlan_interface_admin_up_down (vnet_main_t * vnm, - u32 hw_if_index, u32 flags) -{ - vnet_hw_interface_t *hi; - u32 ti; - - hi = vnet_get_hw_interface (vnm, hw_if_index); - - if (NULL == gbp_vxlan_tunnel_db || - hi->sw_if_index >= vec_len (gbp_vxlan_tunnel_db)) - return (NULL); - - ti = gbp_vxlan_tunnel_db[hi->sw_if_index]; - - if (~0 == ti) - /* not one of ours */ - return (NULL); - - if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) - vnet_hw_interface_set_flags (vnm, hw_if_index, - VNET_HW_INTERFACE_FLAG_LINK_UP); - else - vnet_hw_interface_set_flags (vnm, hw_if_index, 0); - - return (NULL); -} - -static uword -gbp_vxlan_interface_tx (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - clib_warning ("you shouldn't be here, leaking buffers..."); - return frame->n_vectors; -} - -/* *INDENT-OFF* */ -VNET_DEVICE_CLASS (gbp_vxlan_device_class) = { - .name = "GBP VXLAN tunnel-template", - .format_device_name = format_gbp_vxlan_tunnel_name, - .format_device = format_gbp_vxlan_tunnel, - .format_tx_trace = format_gbp_vxlan_tx_trace, - .admin_up_down_function = gbp_vxlan_interface_admin_up_down, - .tx_function = gbp_vxlan_interface_tx, -}; - -VNET_HW_INTERFACE_CLASS (gbp_vxlan_hw_interface_class) = { - .name = "GBP-VXLAN", - .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P, -}; -/* *INDENT-ON* */ - -int -gbp_vxlan_tunnel_add (u32 vni, gbp_vxlan_tunnel_layer_t layer, - u32 bd_rd_id, - const ip4_address_t * src, u32 * sw_if_indexp) -{ - gbp_vxlan_tunnel_t *gt; - index_t gti; - uword *p; - int rv; - - rv = 0; - p = hash_get (gv_db, vni); - - GBP_VXLAN_TUN_DBG ("add: %d %d %d", vni, layer, bd_rd_id); - - if (NULL == p) - { - vnet_sw_interface_t *si; - vnet_hw_interface_t *hi; - index_t gbi, grdi; - vnet_main_t *vnm; - - gbi = grdi = INDEX_INVALID; - - if (layer == GBP_VXLAN_TUN_L2) - { - gbi = gbp_bridge_domain_find_and_lock (bd_rd_id); - - if (INDEX_INVALID == gbi) - { - return (VNET_API_ERROR_BD_NOT_MODIFIABLE); - } - } - else - { - grdi = gbp_route_domain_find_and_lock (bd_rd_id); - - if (INDEX_INVALID == grdi) - { - return (VNET_API_ERROR_NO_SUCH_FIB); - } - } - - vnm = vnet_get_main (); - pool_get (gbp_vxlan_tunnel_pool, gt); - gti = gt - gbp_vxlan_tunnel_pool; - - gt->gt_vni = vni; - gt->gt_layer = layer; - gt->gt_bd_rd_id = bd_rd_id; - gt->gt_src.ip4.as_u32 = src->as_u32; - gt->gt_hw_if_index = vnet_register_interface (vnm, - gbp_vxlan_device_class.index, - gti, - gbp_vxlan_hw_interface_class.index, - gti); - - hi = vnet_get_hw_interface (vnm, gt->gt_hw_if_index); - - gt->gt_sw_if_index = hi->sw_if_index; - - /* don't flood packets in a BD to these interfaces */ - si = vnet_get_sw_interface (vnm, gt->gt_sw_if_index); - si->flood_class = VNET_FLOOD_CLASS_NO_FLOOD; - - if (layer == GBP_VXLAN_TUN_L2) - { - gbp_bridge_domain_t *gb; - - gb = gbp_bridge_domain_get (gbi); - - gt->gt_gbd = gbi; - gb->gb_vni = gti; - /* set it up as a GBP interface */ - gt->gt_itf = gbp_itf_l2_add_and_lock (gt->gt_sw_if_index, - gt->gt_gbd); - gbp_itf_l2_set_input_feature (gt->gt_itf, L2INPUT_FEAT_GBP_LEARN); - } - else - { - gt->gt_grd = grdi; - gt->gt_itf = gbp_itf_l3_add_and_lock (gt->gt_sw_if_index, - gt->gt_grd); - gbp_itf_l3_set_input_feature (gt->gt_itf, GBP_ITF_L3_FEAT_LEARN); - } - - /* - * save the tunnel by VNI and by sw_if_index - */ - hash_set (gv_db, vni, gti); - - vec_validate_init_empty (gbp_vxlan_tunnel_db, - gt->gt_sw_if_index, INDEX_INVALID); - gbp_vxlan_tunnel_db[gt->gt_sw_if_index] = gti; - - if (sw_if_indexp) - *sw_if_indexp = gt->gt_sw_if_index; - - vxlan_gbp_register_udp_ports (); - } - else - { - gti = p[0]; - rv = VNET_API_ERROR_IF_ALREADY_EXISTS; - } - - GBP_VXLAN_TUN_DBG ("add: %U", format_gbp_vxlan_tunnel, gti); - - return (rv); -} - -int -gbp_vxlan_tunnel_del (u32 vni) -{ - gbp_vxlan_tunnel_t *gt; - uword *p; - - p = hash_get (gv_db, vni); - - if (NULL != p) - { - vnet_main_t *vnm; - - vnm = vnet_get_main (); - gt = gbp_vxlan_tunnel_get (p[0]); - - vxlan_gbp_unregister_udp_ports (); - - GBP_VXLAN_TUN_DBG ("del: %U", format_gbp_vxlan_tunnel, - gt - gbp_vxlan_tunnel_pool); - - gbp_endpoint_flush (GBP_ENDPOINT_SRC_DP, gt->gt_sw_if_index); - ASSERT (0 == vec_len (gt->gt_tuns)); - vec_free (gt->gt_tuns); - - gbp_itf_unlock (>->gt_itf); - - if (GBP_VXLAN_TUN_L2 == gt->gt_layer) - { - gbp_bridge_domain_unlock (gt->gt_gbd); - } - else - { - gbp_route_domain_unlock (gt->gt_grd); - } - - vnet_sw_interface_set_flags (vnm, gt->gt_sw_if_index, 0); - vnet_delete_hw_interface (vnm, gt->gt_hw_if_index); - - hash_unset (gv_db, vni); - gbp_vxlan_tunnel_db[gt->gt_sw_if_index] = INDEX_INVALID; - - pool_put (gbp_vxlan_tunnel_pool, gt); - } - else - return VNET_API_ERROR_NO_SUCH_ENTRY; - - return (0); -} - -static clib_error_t * -gbp_vxlan_show (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) -{ - - vlib_cli_output (vm, "GBP-VXLAN Interfaces:"); - - gbp_vxlan_walk (gbp_vxlan_tunnel_show_one, vm); - - return (NULL); -} - -/*? - * Show Group Based Policy VXLAN tunnels - * - * @cliexpar - * @cliexstart{show gbp vxlan} - * @cliexend - ?*/ -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (gbp_vxlan_show_node, static) = { - .path = "show gbp vxlan", - .short_help = "show gbp vxlan\n", - .function = gbp_vxlan_show, -}; -/* *INDENT-ON* */ - -static clib_error_t * -gbp_vxlan_init (vlib_main_t * vm) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - - gt_logger = vlib_log_register_class ("gbp", "tun"); - - punt_hdl = vlib_punt_client_register ("gbp-vxlan"); - - vlib_punt_register (punt_hdl, - vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP4], - "gbp-vxlan4"); - - return (0); -} - -/* *INDENT-OFF* */ -VLIB_INIT_FUNCTION (gbp_vxlan_init) = -{ - .runs_after = VLIB_INITS("punt_init", "vxlan_gbp_init"), -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |