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Diffstat (limited to 'src/vnet/lisp-gpe/interface.c')
| -rw-r--r-- | src/vnet/lisp-gpe/interface.c | 945 |
1 files changed, 0 insertions, 945 deletions
diff --git a/src/vnet/lisp-gpe/interface.c b/src/vnet/lisp-gpe/interface.c deleted file mode 100644 index 1ccb53dda72..00000000000 --- a/src/vnet/lisp-gpe/interface.c +++ /dev/null @@ -1,945 +0,0 @@ -/* - * Copyright (c) 2016 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. - */ - -/** - * @file - * @brief Common utility functions for LISP-GPE interfaces. - * - */ - -#include <vppinfra/error.h> -#include <vppinfra/hash.h> -#include <vnet/vnet.h> -#include <vnet/ip/ip.h> -#include <vnet/udp/udp.h> -#include <vnet/ethernet/ethernet.h> -#include <vnet/lisp-gpe/lisp_gpe.h> -#include <vnet/lisp-gpe/lisp_gpe_fwd_entry.h> -#include <vnet/lisp-gpe/lisp_gpe_tenant.h> -#include <vnet/lisp-gpe/lisp_gpe_adjacency.h> -#include <vnet/adj/adj.h> -#include <vnet/fib/fib_table.h> -#include <vnet/fib/ip4_fib.h> -#include <vnet/fib/ip6_fib.h> -#include <vnet/lisp-cp/lisp_cp_dpo.h> - -/** - * @brief The VLIB node arc/edge from the interface's TX node, to the L2 - * load-balanceing node. Which is where all packets go - */ -static uword l2_arc_to_lb; - -#define foreach_lisp_gpe_tx_next \ - _(DROP, "error-drop") \ - _(IP4_LOOKUP, "ip4-lookup") \ - _(IP6_LOOKUP, "ip6-lookup") - -typedef enum -{ -#define _(sym,str) LISP_GPE_TX_NEXT_##sym, - foreach_lisp_gpe_tx_next -#undef _ - LISP_GPE_TX_N_NEXT, -} lisp_gpe_tx_next_t; - -typedef struct -{ - u32 tunnel_index; -} lisp_gpe_tx_trace_t; - -u8 * -format_lisp_gpe_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 *); - lisp_gpe_tx_trace_t *t = va_arg (*args, lisp_gpe_tx_trace_t *); - - s = format (s, "LISP-GPE-TX: tunnel %d", t->tunnel_index); - return s; -} - -#define is_v4_packet(_h) ((*(u8*) _h) & 0xF0) == 0x40 - -/** - * @brief LISP-GPE interface TX (encap) function. - * @node lisp_gpe_interface_tx - * - * The LISP-GPE interface TX (encap) function. - * - * Looks up the associated tunnel based on the adjacency hit in the SD FIB - * and if the tunnel is multihomed it uses the flow hash to determine - * sub-tunnel, and rewrite string, to be used to encapsulate the packet. - * - * @param[in] vm vlib_main_t corresponding to the current thread. - * @param[in] node vlib_node_runtime_t data for this node. - * @param[in] frame vlib_frame_t whose contents should be dispatched. - * - * @return number of vectors in frame. - */ -static uword -lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * from_frame) -{ - u32 n_left_from, next_index, *from, *to_next; - lisp_gpe_main_t *lgm = &lisp_gpe_main; - - from = vlib_frame_vector_args (from_frame); - n_left_from = from_frame->n_vectors; - - next_index = node->cached_next_index; - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0, adj_index0, next0; - const ip_adjacency_t *adj0; - const dpo_id_t *dpo0; - vlib_buffer_t *b0; - u8 is_v4_0; - - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - - /* Fixup the checksum and len fields in the LISP tunnel encap - * that was applied at the midchain node */ - is_v4_0 = is_v4_packet (vlib_buffer_get_current (b0)); - ip_udp_fixup_one (lgm->vlib_main, b0, is_v4_0); - - /* Follow the DPO on which the midchain is stacked */ - adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; - adj0 = adj_get (adj_index0); - dpo0 = &adj0->sub_type.midchain.next_dpo; - next0 = dpo0->dpoi_next_node; - vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; - - if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) - { - lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0, - sizeof (*tr)); - tr->tunnel_index = adj_index0; - } - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, - n_left_to_next, bi0, next0); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - return from_frame->n_vectors; -} - -static u8 * -format_lisp_gpe_name (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - return format (s, "lisp_gpe%d", dev_instance); -} - -/* *INDENT-OFF* */ -VNET_DEVICE_CLASS (lisp_gpe_device_class) = { - .name = "LISP_GPE", - .format_device_name = format_lisp_gpe_name, - .format_tx_trace = format_lisp_gpe_tx_trace, - .tx_function = lisp_gpe_interface_tx, -}; -/* *INDENT-ON* */ - -u8 * -format_lisp_gpe_header_with_length (u8 * s, va_list * args) -{ - lisp_gpe_header_t *h = va_arg (*args, lisp_gpe_header_t *); - u32 max_header_bytes = va_arg (*args, u32); - u32 header_bytes; - - header_bytes = sizeof (h[0]); - if (max_header_bytes != 0 && header_bytes > max_header_bytes) - return format (s, "lisp-gpe header truncated"); - - s = format (s, "flags: "); -#define _(n,v) if (h->flags & v) s = format (s, "%s ", #n); - foreach_lisp_gpe_flag_bit; -#undef _ - - s = format (s, "\n ver_res %d res %d next_protocol %d iid %d(%x)", - h->ver_res, h->res, h->next_protocol, - clib_net_to_host_u32 (h->iid << 8), - clib_net_to_host_u32 (h->iid << 8)); - return s; -} - -/* *INDENT-OFF* */ -VNET_HW_INTERFACE_CLASS (lisp_gpe_hw_class) = { - .name = "LISP_GPE", - .format_header = format_lisp_gpe_header_with_length, - .build_rewrite = lisp_gpe_build_rewrite, - .update_adjacency = lisp_gpe_update_adjacency, -}; -/* *INDENT-ON* */ - - -typedef struct -{ - u32 dpo_index; -} l2_lisp_gpe_tx_trace_t; - -static u8 * -format_l2_lisp_gpe_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 *); - l2_lisp_gpe_tx_trace_t *t = va_arg (*args, l2_lisp_gpe_tx_trace_t *); - - s = format (s, "L2-LISP-GPE-TX: load-balance %d", t->dpo_index); - return s; -} - -/** - * @brief LISP-GPE interface TX (encap) function for L2 overlays. - * @node l2_lisp_gpe_interface_tx - * - * The L2 LISP-GPE interface TX (encap) function. - * - * Uses bridge domain index, source and destination ethernet addresses to - * lookup tunnel. If the tunnel is multihomed a flow has is used to determine - * the sub-tunnel and therefore the rewrite string to be used to encapsulate - * the packets. - * - * @param[in] vm vlib_main_t corresponding to the current thread. - * @param[in] node vlib_node_runtime_t data for this node. - * @param[in] frame vlib_frame_t whose contents should be dispatched. - * - * @return number of vectors in frame. - */ -static uword -l2_lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * from_frame) -{ - u32 n_left_from, next_index, *from, *to_next; - lisp_gpe_main_t *lgm = &lisp_gpe_main; - u32 thread_index = vm->thread_index; - vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters; - - from = vlib_frame_vector_args (from_frame); - n_left_from = from_frame->n_vectors; - - next_index = node->cached_next_index; - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - vlib_buffer_t *b0; - u32 bi0, lbi0; - ethernet_header_t *e0; - - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - e0 = vlib_buffer_get_current (b0); - - vnet_buffer (b0)->lisp.overlay_afi = LISP_AFI_MAC; - - /* lookup dst + src mac */ - lbi0 = lisp_l2_fib_lookup (lgm, vnet_buffer (b0)->l2.bd_index, - e0->src_address, e0->dst_address); - vnet_buffer (b0)->ip.adj_index[VLIB_TX] = lbi0; - - vlib_increment_combined_counter (cm, thread_index, lbi0, 1, - vlib_buffer_length_in_chain (vm, - b0)); - if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) - { - l2_lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0, - sizeof (*tr)); - tr->dpo_index = lbi0; - } - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, - n_left_to_next, bi0, l2_arc_to_lb); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - return from_frame->n_vectors; -} - -static u8 * -format_l2_lisp_gpe_name (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - return format (s, "l2_lisp_gpe%d", dev_instance); -} - -/* *INDENT-OFF* */ -VNET_DEVICE_CLASS (l2_lisp_gpe_device_class,static) = { - .name = "L2_LISP_GPE", - .format_device_name = format_l2_lisp_gpe_name, - .format_tx_trace = format_l2_lisp_gpe_tx_trace, - .tx_function = l2_lisp_gpe_interface_tx, -}; -/* *INDENT-ON* */ - -typedef struct -{ - u32 dpo_index; -} nsh_lisp_gpe_tx_trace_t; - -u8 * -format_nsh_lisp_gpe_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 *); - nsh_lisp_gpe_tx_trace_t *t = va_arg (*args, nsh_lisp_gpe_tx_trace_t *); - - s = format (s, "NSH-GPE-TX: tunnel %d", t->dpo_index); - return s; -} - -/** - * @brief LISP-GPE interface TX for NSH overlays. - * @node nsh_lisp_gpe_interface_tx - * - * The NSH LISP-GPE interface TX function. - * - * @param[in] vm vlib_main_t corresponding to the current thread. - * @param[in] node vlib_node_runtime_t data for this node. - * @param[in] frame vlib_frame_t whose contents should be dispatched. - * - * @return number of vectors in frame. - */ -static uword -nsh_lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * from_frame) -{ - u32 n_left_from, next_index, *from, *to_next; - lisp_gpe_main_t *lgm = &lisp_gpe_main; - - from = vlib_frame_vector_args (from_frame); - n_left_from = from_frame->n_vectors; - - next_index = node->cached_next_index; - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - vlib_buffer_t *b0; - u32 bi0; - u32 *nsh0, next0; - const dpo_id_t *dpo0; - - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - nsh0 = vlib_buffer_get_current (b0); - - vnet_buffer (b0)->lisp.overlay_afi = LISP_AFI_LCAF; - - /* lookup SPI + SI (second word of the NSH header). - * NB: Load balancing was done by the control plane */ - dpo0 = lisp_nsh_fib_lookup (lgm, nsh0[1]); - - next0 = dpo0->dpoi_next_node; - vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; - - if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) - { - nsh_lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0, - sizeof (*tr)); - tr->dpo_index = dpo0->dpoi_index; - } - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, - n_left_to_next, bi0, next0); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - return from_frame->n_vectors; -} - -static u8 * -format_nsh_lisp_gpe_name (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - return format (s, "nsh_lisp_gpe%d", dev_instance); -} - -/* *INDENT-OFF* */ -VNET_DEVICE_CLASS (nsh_lisp_gpe_device_class,static) = { - .name = "NSH_LISP_GPE", - .format_device_name = format_nsh_lisp_gpe_name, - .format_tx_trace = format_nsh_lisp_gpe_tx_trace, - .tx_function = nsh_lisp_gpe_interface_tx, -}; -/* *INDENT-ON* */ - -static vnet_hw_interface_t * -lisp_gpe_create_iface (lisp_gpe_main_t * lgm, u32 vni, u32 dp_table, - vnet_device_class_t * dev_class, - tunnel_lookup_t * tuns) -{ - u32 flen; - u32 hw_if_index = ~0; - u8 *new_name; - vnet_hw_interface_t *hi; - vnet_main_t *vnm = lgm->vnet_main; - - /* create hw lisp_gpeX iface if needed, otherwise reuse existing */ - flen = vec_len (lgm->free_tunnel_hw_if_indices); - if (flen > 0) - { - hw_if_index = lgm->free_tunnel_hw_if_indices[flen - 1]; - _vec_len (lgm->free_tunnel_hw_if_indices) -= 1; - - hi = vnet_get_hw_interface (vnm, hw_if_index); - - /* rename interface */ - new_name = format (0, "%U", dev_class->format_device_name, vni); - - vec_add1 (new_name, 0); - vnet_rename_interface (vnm, hw_if_index, (char *) new_name); - vec_free (new_name); - - /* clear old stats of freed interface before reuse */ - vnet_interface_main_t *im = &vnm->interface_main; - vnet_interface_counter_lock (im); - vlib_zero_combined_counter (&im->combined_sw_if_counters - [VNET_INTERFACE_COUNTER_TX], - hi->sw_if_index); - vlib_zero_combined_counter (&im->combined_sw_if_counters - [VNET_INTERFACE_COUNTER_RX], - hi->sw_if_index); - vlib_zero_simple_counter (&im->sw_if_counters - [VNET_INTERFACE_COUNTER_DROP], - hi->sw_if_index); - vnet_interface_counter_unlock (im); - } - else - { - hw_if_index = vnet_register_interface (vnm, dev_class->index, vni, - lisp_gpe_hw_class.index, 0); - hi = vnet_get_hw_interface (vnm, hw_if_index); - } - - hash_set (tuns->hw_if_index_by_dp_table, dp_table, hw_if_index); - - /* set tunnel termination: post decap, packets are tagged as having been - * originated by lisp-gpe interface */ - hash_set (tuns->sw_if_index_by_vni, vni, hi->sw_if_index); - hash_set (tuns->vni_by_sw_if_index, hi->sw_if_index, vni); - - return hi; -} - -static void -lisp_gpe_remove_iface (lisp_gpe_main_t * lgm, u32 hi_index, u32 dp_table, - tunnel_lookup_t * tuns) -{ - vnet_main_t *vnm = lgm->vnet_main; - vnet_hw_interface_t *hi; - uword *vnip; - - hi = vnet_get_hw_interface (vnm, hi_index); - - /* disable interface */ - vnet_sw_interface_set_flags (vnm, hi->sw_if_index, 0 /* down */ ); - vnet_hw_interface_set_flags (vnm, hi->hw_if_index, 0 /* down */ ); - hash_unset (tuns->hw_if_index_by_dp_table, dp_table); - vec_add1 (lgm->free_tunnel_hw_if_indices, hi->hw_if_index); - - /* clean tunnel termination and vni to sw_if_index binding */ - vnip = hash_get (tuns->vni_by_sw_if_index, hi->sw_if_index); - if (0 == vnip) - { - clib_warning ("No vni associated to interface %d", hi->sw_if_index); - return; - } - hash_unset (tuns->sw_if_index_by_vni, vnip[0]); - hash_unset (tuns->vni_by_sw_if_index, hi->sw_if_index); -} - -static void -lisp_gpe_iface_set_table (u32 sw_if_index, u32 table_id) -{ - fib_node_index_t fib_index; - - fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id, - FIB_SOURCE_LISP); - vec_validate (ip4_main.fib_index_by_sw_if_index, sw_if_index); - ip4_main.fib_index_by_sw_if_index[sw_if_index] = fib_index; - ip4_sw_interface_enable_disable (sw_if_index, 1); - - fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, table_id, - FIB_SOURCE_LISP); - vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index); - ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index; - ip6_sw_interface_enable_disable (sw_if_index, 1); -} - -static void -lisp_gpe_tenant_del_default_routes (u32 table_id) -{ - fib_protocol_t proto; - - FOR_EACH_FIB_IP_PROTOCOL (proto) - { - fib_prefix_t prefix = { - .fp_proto = proto, - }; - u32 fib_index; - - fib_index = fib_table_find (prefix.fp_proto, table_id); - fib_table_entry_special_remove (fib_index, &prefix, FIB_SOURCE_LISP); - fib_table_unlock (fib_index, prefix.fp_proto, FIB_SOURCE_LISP); - } -} - -static void -lisp_gpe_tenant_add_default_routes (u32 table_id) -{ - fib_protocol_t proto; - - FOR_EACH_FIB_IP_PROTOCOL (proto) - { - fib_prefix_t prefix = { - .fp_proto = proto, - }; - u32 fib_index; - - /* - * Add a deafult route that results in a control plane punt DPO - */ - fib_index = fib_table_find_or_create_and_lock (prefix.fp_proto, table_id, - FIB_SOURCE_LISP); - fib_table_entry_special_dpo_add (fib_index, &prefix, FIB_SOURCE_LISP, - FIB_ENTRY_FLAG_EXCLUSIVE, - lisp_cp_dpo_get (fib_proto_to_dpo - (proto))); - } -} - - -/** - * @brief Add/del LISP-GPE L3 interface. - * - * Creates LISP-GPE interface, sets ingress arcs from lisp_gpeX_lookup, - * installs default routes that attract all traffic with no more specific - * routes to lgpe-ipx-lookup, set egress arcs to ipx-lookup, sets - * the interface in the right vrf and enables it. - * - * @param[in] lgm Reference to @ref lisp_gpe_main_t. - * @param[in] a Parameters to create interface. - * - * @return number of vectors in frame. - */ -u32 -lisp_gpe_add_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 table_id, - u8 with_default_routes) -{ - vnet_main_t *vnm = lgm->vnet_main; - tunnel_lookup_t *l3_ifaces = &lgm->l3_ifaces; - vnet_hw_interface_t *hi; - uword *hip, *si; - - hip = hash_get (l3_ifaces->hw_if_index_by_dp_table, table_id); - - if (hip) - { - clib_warning ("vrf %d already mapped to a vni", table_id); - return ~0; - } - - si = hash_get (l3_ifaces->sw_if_index_by_vni, vni); - - if (si) - { - clib_warning ("Interface for vni %d already exists", vni); - } - - /* create lisp iface and populate tunnel tables */ - hi = lisp_gpe_create_iface (lgm, vni, table_id, - &lisp_gpe_device_class, l3_ifaces); - - /* insert default routes that point to lisp-cp lookup */ - lisp_gpe_iface_set_table (hi->sw_if_index, table_id); - if (with_default_routes) - lisp_gpe_tenant_add_default_routes (table_id); - - /* enable interface */ - vnet_sw_interface_set_flags (vnm, hi->sw_if_index, - VNET_SW_INTERFACE_FLAG_ADMIN_UP); - vnet_hw_interface_set_flags (vnm, hi->hw_if_index, - VNET_HW_INTERFACE_FLAG_LINK_UP); - - return (hi->sw_if_index); -} - -void -lisp_gpe_del_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 table_id) -{ - vnet_main_t *vnm = lgm->vnet_main; - tunnel_lookup_t *l3_ifaces = &lgm->l3_ifaces; - vnet_hw_interface_t *hi; - uword *hip; - - hip = hash_get (l3_ifaces->hw_if_index_by_dp_table, table_id); - - if (hip == 0) - { - clib_warning ("The interface for vrf %d doesn't exist", table_id); - return; - } - - hi = vnet_get_hw_interface (vnm, hip[0]); - - lisp_gpe_remove_iface (lgm, hip[0], table_id, &lgm->l3_ifaces); - - /* unset default routes */ - ip4_sw_interface_enable_disable (hi->sw_if_index, 0); - ip6_sw_interface_enable_disable (hi->sw_if_index, 0); - lisp_gpe_tenant_del_default_routes (table_id); -} - -/** - * @brief Add/del LISP-GPE L2 interface. - * - * Creates LISP-GPE interface, sets it in L2 mode in the appropriate - * bridge domain, sets egress arcs and enables it. - * - * @param[in] lgm Reference to @ref lisp_gpe_main_t. - * @param[in] a Parameters to create interface. - * - * @return number of vectors in frame. - */ -u32 -lisp_gpe_add_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id) -{ - vnet_main_t *vnm = lgm->vnet_main; - tunnel_lookup_t *l2_ifaces = &lgm->l2_ifaces; - vnet_hw_interface_t *hi; - uword *hip, *si; - u16 bd_index; - - if (bd_id > L2_BD_ID_MAX) - { - clib_warning ("bridge domain ID %d exceed 16M limit", bd_id); - return ~0; - } - - bd_index = bd_find_or_add_bd_index (&bd_main, bd_id); - hip = hash_get (l2_ifaces->hw_if_index_by_dp_table, bd_index); - - if (hip) - { - clib_warning ("bridge domain %d already mapped to a vni", bd_id); - return ~0; - } - - si = hash_get (l2_ifaces->sw_if_index_by_vni, vni); - if (si) - { - clib_warning ("Interface for vni %d already exists", vni); - return ~0; - } - - /* create lisp iface and populate tunnel tables */ - hi = lisp_gpe_create_iface (lgm, vni, bd_index, - &l2_lisp_gpe_device_class, &lgm->l2_ifaces); - - /* enable interface */ - vnet_sw_interface_set_flags (vnm, hi->sw_if_index, - VNET_SW_INTERFACE_FLAG_ADMIN_UP); - vnet_hw_interface_set_flags (vnm, hi->hw_if_index, - VNET_HW_INTERFACE_FLAG_LINK_UP); - - l2_arc_to_lb = vlib_node_add_named_next (vlib_get_main (), - hi->tx_node_index, - "l2-load-balance"); - - /* we're ready. add iface to l2 bridge domain */ - set_int_l2_mode (lgm->vlib_main, vnm, MODE_L2_BRIDGE, hi->sw_if_index, - bd_index, L2_BD_PORT_TYPE_NORMAL, 0, 0); - - return (hi->sw_if_index); -} - -/** - * @brief Add/del LISP-GPE L2 interface. - * - * Creates LISP-GPE interface, sets it in L2 mode in the appropriate - * bridge domain, sets egress arcs and enables it. - * - * @param[in] lgm Reference to @ref lisp_gpe_main_t. - * @param[in] a Parameters to create interface. - * - * @return number of vectors in frame. - */ -void -lisp_gpe_del_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id) -{ - tunnel_lookup_t *l2_ifaces = &lgm->l2_ifaces; - vnet_hw_interface_t *hi; - - u32 bd_index = bd_find_index (&bd_main, bd_id); - ASSERT (bd_index != ~0); - uword *hip = hash_get (l2_ifaces->hw_if_index_by_dp_table, bd_index); - - if (hip == 0) - { - clib_warning ("The interface for bridge domain %d doesn't exist", - bd_id); - return; - } - - /* Remove interface from bridge .. by enabling L3 mode */ - hi = vnet_get_hw_interface (lgm->vnet_main, hip[0]); - set_int_l2_mode (lgm->vlib_main, lgm->vnet_main, MODE_L3, hi->sw_if_index, - 0, L2_BD_PORT_TYPE_NORMAL, 0, 0); - lisp_gpe_remove_iface (lgm, hip[0], bd_index, &lgm->l2_ifaces); -} - -/** - * @brief Add LISP-GPE NSH interface. - * - * Creates LISP-GPE interface, sets it in L3 mode. - * - * @param[in] lgm Reference to @ref lisp_gpe_main_t. - * @param[in] a Parameters to create interface. - * - * @return sw_if_index. - */ -u32 -vnet_lisp_gpe_add_nsh_iface (lisp_gpe_main_t * lgm) -{ - vnet_main_t *vnm = lgm->vnet_main; - tunnel_lookup_t *nsh_ifaces = &lgm->nsh_ifaces; - vnet_hw_interface_t *hi; - uword *hip, *si; - - hip = hash_get (nsh_ifaces->hw_if_index_by_dp_table, 0); - - if (hip) - { - clib_warning ("NSH interface 0 already exists"); - return ~0; - } - - si = hash_get (nsh_ifaces->sw_if_index_by_vni, 0); - if (si) - { - clib_warning ("NSH interface already exists"); - return ~0; - } - - /* create lisp iface and populate tunnel tables */ - hi = lisp_gpe_create_iface (lgm, 0, 0, - &nsh_lisp_gpe_device_class, &lgm->nsh_ifaces); - - /* enable interface */ - vnet_sw_interface_set_flags (vnm, hi->sw_if_index, - VNET_SW_INTERFACE_FLAG_ADMIN_UP); - vnet_hw_interface_set_flags (vnm, hi->hw_if_index, - VNET_HW_INTERFACE_FLAG_LINK_UP); - - return (hi->sw_if_index); -} - -/** - * @brief Del LISP-GPE NSH interface. - * - */ -void -vnet_lisp_gpe_del_nsh_iface (lisp_gpe_main_t * lgm) -{ - tunnel_lookup_t *nsh_ifaces = &lgm->nsh_ifaces; - uword *hip; - - hip = hash_get (nsh_ifaces->hw_if_index_by_dp_table, 0); - - if (hip == 0) - { - clib_warning ("The NSH 0 interface doesn't exist"); - return; - } - lisp_gpe_remove_iface (lgm, hip[0], 0, &lgm->nsh_ifaces); -} - -static clib_error_t * -lisp_gpe_add_del_iface_command_fn (vlib_main_t * vm, unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - unformat_input_t _line_input, *line_input = &_line_input; - u8 is_add = 1; - u32 table_id, vni, bd_id; - u8 vni_is_set = 0, vrf_is_set = 0, bd_index_is_set = 0; - u8 nsh_iface = 0; - clib_error_t *error = NULL; - - if (vnet_lisp_gpe_enable_disable_status () == 0) - { - return clib_error_return (0, "LISP is disabled"); - } - - /* Get a line of input. */ - if (!unformat_user (input, unformat_line_input, line_input)) - return 0; - - while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (line_input, "add")) - is_add = 1; - else if (unformat (line_input, "del")) - is_add = 0; - else if (unformat (line_input, "vrf %d", &table_id)) - { - vrf_is_set = 1; - } - else if (unformat (line_input, "vni %d", &vni)) - { - vni_is_set = 1; - } - else if (unformat (line_input, "bd %d", &bd_id)) - { - bd_index_is_set = 1; - } - else if (unformat (line_input, "nsh")) - { - nsh_iface = 1; - } - else - { - error = clib_error_return (0, "parse error: '%U'", - format_unformat_error, line_input); - goto done; - } - } - - if (nsh_iface) - { - if (is_add) - { - if (~0 == vnet_lisp_gpe_add_nsh_iface (&lisp_gpe_main)) - { - error = clib_error_return (0, "NSH interface not created"); - goto done; - } - } - else - { - vnet_lisp_gpe_del_nsh_iface (&lisp_gpe_main); - } - goto done; - } - - if (vrf_is_set && bd_index_is_set) - { - error = clib_error_return - (0, "Cannot set both vrf and brdige domain index!"); - goto done; - } - - if (!vni_is_set) - { - error = clib_error_return (0, "vni must be set!"); - goto done; - } - - if (!vrf_is_set && !bd_index_is_set) - { - error = - clib_error_return (0, "vrf or bridge domain index must be set!"); - goto done; - } - - if (bd_index_is_set) - { - if (is_add) - { - if (~0 == lisp_gpe_tenant_l2_iface_add_or_lock (vni, bd_id)) - { - error = clib_error_return (0, "L2 interface not created"); - goto done; - } - } - else - lisp_gpe_tenant_l2_iface_unlock (vni); - } - else - { - if (is_add) - { - if (~0 == lisp_gpe_tenant_l3_iface_add_or_lock (vni, table_id, 1 - /* with_default_route */ - )) - { - error = clib_error_return (0, "L3 interface not created"); - goto done; - } - } - else - lisp_gpe_tenant_l3_iface_unlock (vni); - } - -done: - unformat_free (line_input); - - return error; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (add_del_lisp_gpe_iface_command, static) = { - .path = "gpe iface", - .short_help = "gpe iface add/del vni <vni> vrf <vrf>", - .function = lisp_gpe_add_del_iface_command_fn, -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |