+++ /dev/null
-/*
- * 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:
- */
Code Review / vpp.git / blobdiff