csit - Integration tests

Age	Commit message (Expand)	Author	Files	Lines
2017-06-27	CSIT-604: Bootstrap file for vpp-csit-verify-master-centos7-nightly	Jan Gelety	1	-0/+404

/* * Copyright (c) 2015 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 IPv4 and IPv6 VXLAN GPE tunnels * */ #include <vnet/vxlan-gpe/vxlan_gpe.h> #include <vnet/fib/fib.h> #include <vnet/ip/format.h> #include <vnet/fib/fib_entry.h> #include <vnet/fib/fib_table.h> #include <vnet/fib/fib_entry_track.h> #include <vnet/mfib/mfib_table.h> #include <vnet/adj/adj_mcast.h> #include <vnet/interface.h> #include <vlib/vlib.h> /** * @file * @brief VXLAN-GPE. * * VXLAN-GPE provides the features needed to allow L2 bridge domains (BDs) * to span multiple servers. This is done by building an L2 overlay on * top of an L3 network underlay using VXLAN-GPE tunnels. * * This makes it possible for servers to be co-located in the same data * center or be separated geographically as long as they are reachable * through the underlay L3 network. * * You can refer to this kind of L2 overlay bridge domain as a VXLAN-GPE segment. */ vxlan_gpe_main_t vxlan_gpe_main; static u8 * format_decap_next (u8 * s, va_list * args) { vxlan_gpe_tunnel_t *t = va_arg (*args, vxlan_gpe_tunnel_t *); switch (t->protocol) { case VXLAN_GPE_PROTOCOL_IP4: s = format (s, "protocol ip4 fib-idx %d", t->decap_fib_index); break; case VXLAN_GPE_PROTOCOL_IP6: s = format (s, "protocol ip6 fib-idx %d", t->decap_fib_index); break; case VXLAN_GPE_PROTOCOL_ETHERNET: s = format (s, "protocol ethernet"); break; case VXLAN_GPE_PROTOCOL_NSH: s = format (s, "protocol nsh"); break; default: s = format (s, "protocol unknown %d", t->protocol); } return s; } /** * @brief Format function for VXLAN GPE tunnel * * @param *s formatting string * @param *args * * @return *s formatted string * */ u8 * format_vxlan_gpe_tunnel (u8 * s, va_list * args) { vxlan_gpe_tunnel_t *t = va_arg (*args, vxlan_gpe_tunnel_t *); vxlan_gpe_main_t *ngm = &vxlan_gpe_main; s = format (s, "[%d] lcl %U rmt %U vni %d fib-idx %d sw-if-idx %d ", t - ngm->tunnels, format_ip46_address, &t->local, IP46_TYPE_ANY, format_ip46_address, &t->remote, IP46_TYPE_ANY, t->vni, t->encap_fib_index, t->sw_if_index); #if 0 /* next_dpo not yet used by vxlan-gpe-encap node */ s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index); */ #endif s = format (s, "decap-next-%U ", format_decap_next, t); if (PREDICT_FALSE (ip46_address_is_multicast (&t->remote))) s = format (s, "mcast-sw-if-idx %d ", t->mcast_sw_if_index); return s; } /** * @brief Naming for VXLAN GPE tunnel * * @param *s formatting string * @param *args * * @return *s formatted string * */ static u8 * format_vxlan_gpe_name (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); return format (s, "vxlan_gpe_tunnel%d", dev_instance); } /** * @brief CLI function for VXLAN GPE admin up/down * * @param *vnm * @param hw_if_index * @param flag * * @return *rc * */ static clib_error_t * vxlan_gpe_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) { u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0; vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags); return 0; } /* *INDENT-OFF* */ VNET_DEVICE_CLASS (vxlan_gpe_device_class,static) = { .name = "VXLAN_GPE", .format_device_name = format_vxlan_gpe_name, .format_tx_trace = format_vxlan_gpe_encap_trace, .admin_up_down_function = vxlan_gpe_interface_admin_up_down, }; /* *INDENT-ON* */ /** * @brief Formatting function for tracing VXLAN GPE with length * * @param *s * @param *args * * @return *s * */ static u8 * format_vxlan_gpe_header_with_length (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); s = format (s, "unimplemented dev %u", dev_instance); return s; } /* *INDENT-OFF* */ VNET_HW_INTERFACE_CLASS (vxlan_gpe_hw_class) = { .name = "VXLAN_GPE", .format_header = format_vxlan_gpe_header_with_length, .build_rewrite = default_build_rewrite, }; /* *INDENT-ON* */ static void vxlan_gpe_tunnel_restack_dpo (vxlan_gpe_tunnel_t * t) { dpo_id_t dpo = DPO_INVALID; u32 encap_index = vxlan_gpe_encap_node.index; fib_forward_chain_type_t forw_type = ip46_address_is_ip4 (&t->remote) ? FIB_FORW_CHAIN_TYPE_UNICAST_IP4 : FIB_FORW_CHAIN_TYPE_UNICAST_IP6; fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo); dpo_stack_from_node (encap_index, &t->next_dpo, &dpo); dpo_reset (&dpo); } static vxlan_gpe_tunnel_t * vxlan_gpe_tunnel_from_fib_node (fib_node_t * node) { ASSERT (FIB_NODE_TYPE_VXLAN_GPE_TUNNEL == node->fn_type); return ((vxlan_gpe_tunnel_t *) (((char *) node) - STRUCT_OFFSET_OF (vxlan_gpe_tunnel_t, node))); } /** * Function definition to backwalk a FIB node - * Here we will restack the new dpo of VXLAN_GPE DIP to encap node. */ static fib_node_back_walk_rc_t vxlan_gpe_tunnel_back_walk (fib_node_t * node, fib_node_back_walk_ctx_t * ctx) { vxlan_gpe_tunnel_restack_dpo (vxlan_gpe_tunnel_from_fib_node (node)); return (FIB_NODE_BACK_WALK_CONTINUE); } /** * Function definition to get a FIB node from its index */ static fib_node_t * vxlan_gpe_tunnel_fib_node_get (fib_node_index_t index) { vxlan_gpe_tunnel_t *t; vxlan_gpe_main_t *ngm = &vxlan_gpe_main; t = pool_elt_at_index (ngm->tunnels, index); return (&t->node); } /** * Function definition to inform the FIB node that its last lock has gone. */ static void vxlan_gpe_tunnel_last_lock_gone (fib_node_t * node) { /* * The VXLAN_GPE tunnel is a root of the graph. As such * it never has children and thus is never locked. */ ASSERT (0); } /* * Virtual function table registered by VXLAN_GPE tunnels * for participation in the FIB object graph. */ const static fib_node_vft_t vxlan_gpe_vft = { .fnv_get = vxlan_gpe_tunnel_fib_node_get, .fnv_last_lock = vxlan_gpe_tunnel_last_lock_gone, .fnv_back_walk = vxlan_gpe_tunnel_back_walk, }; #define foreach_gpe_copy_field \ _(vni) \ _(protocol) \ _(mcast_sw_if_index) \ _(encap_fib_index) \ _(decap_fib_index) #define foreach_copy_ipv4 { \ _(local.ip4.as_u32) \ _(remote.ip4.as_u32) \ } #define foreach_copy_ipv6 { \ _(local.ip6.as_u64[0]) \ _(local.ip6.as_u64[1]) \ _(remote.ip6.as_u64[0]) \ _(remote.ip6.as_u64[1]) \ } /** * @brief Calculate IPv4 VXLAN GPE rewrite header * * @param *t * * @return rc * */ int vxlan4_gpe_rewrite (vxlan_gpe_tunnel_t * t, u32 extension_size, u8 protocol_override, uword encap_next_node) { u8 *rw = 0; ip4_header_t *ip0; ip4_vxlan_gpe_header_t *h0; int len; len = sizeof (*h0) + extension_size; vec_free (t->rewrite); vec_validate_aligned (rw, len - 1, CLIB_CACHE_LINE_BYTES); h0 = (ip4_vxlan_gpe_header_t *) rw; /* Fixed portion of the (outer) ip4 header */ ip0 = &h0->ip4; ip0->ip_version_and_header_length = 0x45; ip0->ttl = 254; ip0->protocol = IP_PROTOCOL_UDP; /* we fix up the ip4 header length and checksum after-the-fact */ ip0->src_address.as_u32 = t->local.ip4.as_u32; ip0->dst_address.as_u32 = t->remote.ip4.as_u32; ip0->checksum = ip4_header_checksum (ip0); /* UDP header, randomize src port on something, maybe? */ h0->udp.src_port = clib_host_to_net_u16 (4790); h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_VXLAN_GPE); /* VXLAN header. Are we having fun yet? */ h0->vxlan.flags = VXLAN_GPE_FLAGS_I | VXLAN_GPE_FLAGS_P; h0->vxlan.ver_res = VXLAN_GPE_VERSION; if (protocol_override) { h0->vxlan.protocol = protocol_override; } else { h0->vxlan.protocol = t->protocol; } t->rewrite_size = sizeof (ip4_vxlan_gpe_header_t) + extension_size; h0->vxlan.vni_res = clib_host_to_net_u32 (t->vni << 8); t->rewrite = rw; t->encap_next_node = encap_next_node; return (0); } /** * @brief Calculate IPv6 VXLAN GPE rewrite header * * @param *t * * @return rc * */ int vxlan6_gpe_rewrite (vxlan_gpe_tunnel_t * t, u32 extension_size, u8 protocol_override, uword encap_next_node) { u8 *rw = 0; ip6_header_t *ip0; ip6_vxlan_gpe_header_t *h0; int len; len = sizeof (*h0) + extension_size; vec_free (t->rewrite); vec_validate_aligned (rw, len - 1, CLIB_CACHE_LINE_BYTES); h0 = (ip6_vxlan_gpe_header_t *) rw; /* Fixed portion of the (outer) ip4 header */ ip0 = &h0->ip6; ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (6 << 28); ip0->hop_limit = 255; ip0->protocol = IP_PROTOCOL_UDP; ip0->src_address.as_u64[0] = t->local.ip6.as_u64[0]; ip0->src_address.as_u64[1] = t->local.ip6.as_u64[1]; ip0->dst_address.as_u64[0] = t->remote.ip6.as_u64[0]; ip0->dst_address.as_u64[1] = t->remote.ip6.as_u64[1]; /* UDP header, randomize src port on something, maybe? */ h0->udp.src_port = clib_host_to_net_u16 (4790); h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_VXLAN_GPE); /* VXLAN header. Are we having fun yet? */ h0->vxlan.flags = VXLAN_GPE_FLAGS_I | VXLAN_GPE_FLAGS_P; h0->vxlan.ver_res = VXLAN_GPE_VERSION; if (protocol_override) { h0->vxlan.protocol = t->protocol; } else { h0->vxlan.protocol = protocol_override; } t->rewrite_size = sizeof (ip4_vxlan_gpe_header_t) + extension_size; h0->vxlan.vni_res = clib_host_to_net_u32 (t->vni << 8); t->rewrite = rw; t->encap_next_node = encap_next_node; return (0); } static uword vtep_addr_ref (ip46_address_t * ip) { uword *vtep = ip46_address_is_ip4 (ip) ? hash_get (vxlan_gpe_main.vtep4, ip->ip4.as_u32) : hash_get_mem (vxlan_gpe_main.vtep6, &ip->ip6); if (vtep) return ++(*vtep); ip46_address_is_ip4 (ip) ? hash_set (vxlan_gpe_main.vtep4, ip->ip4.as_u32, 1) : hash_set_mem_alloc (&vxlan_gpe_main.vtep6, &ip->ip6, 1); return 1; } static uword vtep_addr_unref (ip46_address_t * ip) { uword *vtep = ip46_address_is_ip4 (ip) ? hash_get (vxlan_gpe_main.vtep4, ip->ip4.as_u32) : hash_get_mem (vxlan_gpe_main.vtep6, &ip->ip6); ALWAYS_ASSERT (vtep); if (--(*vtep) != 0) return *vtep; ip46_address_is_ip4 (ip) ? hash_unset (vxlan_gpe_main.vtep4, ip->ip4.as_u32) : hash_unset_mem_free (&vxlan_gpe_main.vtep6, &ip->ip6); return 0; } /* *INDENT-OFF* */ typedef CLIB_PACKED(union { struct { fib_node_index_t mfib_entry_index; adj_index_t mcast_adj_index; }; u64 as_u64; }) mcast_shared_t; /* *INDENT-ON* */ static inline mcast_shared_t mcast_shared_get (ip46_address_t * ip) { ASSERT (ip46_address_is_multicast (ip)); uword *p = hash_get_mem (vxlan_gpe_main.mcast_shared, ip); ALWAYS_ASSERT (p); return (mcast_shared_t) { .as_u64 = *p}; } static inline void mcast_shared_add (ip46_address_t * remote, fib_node_index_t mfei, adj_index_t ai) { mcast_shared_t new_ep = { .mcast_adj_index = ai, .mfib_entry_index = mfei, }; hash_set_mem_alloc (&vxlan_gpe_main.mcast_shared, remote, new_ep.as_u64); } static inline void mcast_shared_remove (ip46_address_t * remote) { mcast_shared_t ep = mcast_shared_get (remote); adj_unlock (ep.mcast_adj_index); mfib_table_entry_delete_index (ep.mfib_entry_index, MFIB_SOURCE_VXLAN_GPE); hash_unset_mem_free (&vxlan_gpe_main.mcast_shared, remote); } /** * @brief Add or Del a VXLAN GPE tunnel * * @param *a * @param *sw_if_index * * @return rc * */ int vnet_vxlan_gpe_add_del_tunnel (vnet_vxlan_gpe_add_del_tunnel_args_t * a, u32 * sw_if_indexp) { vxlan_gpe_main_t *ngm = &vxlan_gpe_main; vxlan_gpe_tunnel_t *t = 0; vnet_main_t *vnm = ngm->vnet_main; vnet_hw_interface_t *hi; uword *p; u32 hw_if_index = ~0; u32 sw_if_index = ~0; int rv; vxlan4_gpe_tunnel_key_t key4, *key4_copy; vxlan6_gpe_tunnel_key_t key6, *key6_copy; u32 is_ip6 = a->is_ip6; if (!is_ip6) { key4.local = a->local.ip4.as_u32; key4.remote = a->remote.ip4.as_u32; key4.vni = clib_host_to_net_u32 (a->vni << 8); key4.pad = 0; p = hash_get_mem (ngm->vxlan4_gpe_tunnel_by_key, &key4); } else { key6.local.as_u64[0] = a->local.ip6.as_u64[0]; key6.local.as_u64[1] = a->local.ip6.as_u64[1]; key6.remote.as_u64[0] = a->remote.ip6.as_u64[0]; key6.remote.as_u64[1] = a->remote.ip6.as_u64[1]; key6.vni = clib_host_to_net_u32 (a->vni << 8); p = hash_get_mem (ngm->vxlan6_gpe_tunnel_by_key, &key6); } if (a->is_add) { l2input_main_t *l2im = &l2input_main; /* adding a tunnel: tunnel must not already exist */ if (p) return VNET_API_ERROR_TUNNEL_EXIST; pool_get_aligned (ngm->tunnels, t, CLIB_CACHE_LINE_BYTES); clib_memset (t, 0, sizeof (*t)); /* copy from arg structure */ /* *INDENT-OFF* */ #define _(x) t->x = a->x; foreach_gpe_copy_field; if (!a->is_ip6) foreach_copy_ipv4 else foreach_copy_ipv6 #undef _ /* *INDENT-ON* */ if (!a->is_ip6) t->flags |= VXLAN_GPE_TUNNEL_IS_IPV4; if (!a->is_ip6) { rv = vxlan4_gpe_rewrite (t, 0, 0, VXLAN_GPE_ENCAP_NEXT_IP4_LOOKUP); } else { rv = vxlan6_gpe_rewrite (t, 0, 0, VXLAN_GPE_ENCAP_NEXT_IP6_LOOKUP); } if (rv) { pool_put (ngm->tunnels, t); return rv; } if (!is_ip6) { key4_copy = clib_mem_alloc (sizeof (*key4_copy)); clib_memcpy_fast (key4_copy, &key4, sizeof (*key4_copy)); hash_set_mem (ngm->vxlan4_gpe_tunnel_by_key, key4_copy, t - ngm->tunnels); } else { key6_copy = clib_mem_alloc (sizeof (*key6_copy)); clib_memcpy_fast (key6_copy, &key6, sizeof (*key6_copy)); hash_set_mem (ngm->vxlan6_gpe_tunnel_by_key, key6_copy, t - ngm->tunnels); } if (vec_len (ngm->free_vxlan_gpe_tunnel_hw_if_indices) > 0) { vnet_interface_main_t *im = &vnm->interface_main; hw_if_index = ngm->free_vxlan_gpe_tunnel_hw_if_indices [vec_len (ngm->free_vxlan_gpe_tunnel_hw_if_indices) - 1]; _vec_len (ngm->free_vxlan_gpe_tunnel_hw_if_indices) -= 1; hi = vnet_get_hw_interface (vnm, hw_if_index); hi->dev_instance = t - ngm->tunnels; hi->hw_instance = hi->dev_instance; /* clear old stats of freed tunnel before reuse */ sw_if_index = hi->sw_if_index; vnet_interface_counter_lock (im); vlib_zero_combined_counter (&im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_TX], sw_if_index); vlib_zero_combined_counter (&im->combined_sw_if_counters [VNET_INTERFACE_COUNTER_RX], sw_if_index); vlib_zero_simple_counter (&im->sw_if_counters [VNET_INTERFACE_COUNTER_DROP], sw_if_index); vnet_interface_counter_unlock (im); } else { hw_if_index = vnet_register_interface (vnm, vxlan_gpe_device_class.index, t - ngm->tunnels, vxlan_gpe_hw_class.index, t - ngm->tunnels); hi = vnet_get_hw_interface (vnm, hw_if_index); } /* Set vxlan-gpe tunnel output node */ u32 encap_index = vxlan_gpe_encap_node.index; vnet_set_interface_output_node (vnm, hw_if_index, encap_index); t->hw_if_index = hw_if_index; t->sw_if_index = sw_if_index = hi->sw_if_index; vec_validate_init_empty (ngm->tunnel_index_by_sw_if_index, sw_if_index, ~0); ngm->tunnel_index_by_sw_if_index[sw_if_index] = t - ngm->tunnels; /* setup l2 input config with l2 feature and bd 0 to drop packet */ vec_validate (l2im->configs, sw_if_index); l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP; l2im->configs[sw_if_index].bd_index = 0; vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index); si->flags &= ~VNET_SW_INTERFACE_FLAG_HIDDEN; vnet_sw_interface_set_flags (vnm, hi->sw_if_index, VNET_SW_INTERFACE_FLAG_ADMIN_UP); fib_node_init (&t->node, FIB_NODE_TYPE_VXLAN_GPE_TUNNEL); fib_prefix_t tun_remote_pfx; vnet_flood_class_t flood_class = VNET_FLOOD_CLASS_TUNNEL_NORMAL; fib_prefix_from_ip46_addr (&t->remote, &tun_remote_pfx); if (!ip46_address_is_multicast (&t->remote)) { /* Unicast tunnel - * source the FIB entry for the tunnel's destination * and become a child thereof. The tunnel will then get poked * when the forwarding for the entry updates, and the tunnel can * re-stack accordingly */ vtep_addr_ref (&t->local); t->fib_entry_index = fib_entry_track (t->encap_fib_index, &tun_remote_pfx, FIB_NODE_TYPE_VXLAN_GPE_TUNNEL, t - ngm->tunnels, &t->sibling_index); vxlan_gpe_tunnel_restack_dpo (t); } else { /* Multicast tunnel - * as the same mcast group can be used for multiple mcast tunnels * with different VNIs, create the output fib adjacency only if * it does not already exist */ fib_protocol_t fp = fib_ip_proto (is_ip6); if (vtep_addr_ref (&t->remote) == 1) { fib_node_index_t mfei; adj_index_t ai; fib_route_path_t path = { .frp_proto = fib_proto_to_dpo (fp), .frp_addr = zero_addr, .frp_sw_if_index = 0xffffffff, .frp_fib_index = ~0, .frp_weight = 1, .frp_flags = FIB_ROUTE_PATH_LOCAL, .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD, }; const mfib_prefix_t mpfx = { .fp_proto = fp, .fp_len = (is_ip6 ? 128 : 32), .fp_grp_addr = tun_remote_pfx.fp_addr, }; /* * Setup the (*,G) to receive traffic on the mcast group * - the forwarding interface is for-us * - the accepting interface is that from the API */ mfib_table_entry_path_update (t->encap_fib_index, &mpfx, MFIB_SOURCE_VXLAN_GPE, &path); path.frp_sw_if_index = a->mcast_sw_if_index; path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE; path.frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT; mfei = mfib_table_entry_path_update (t->encap_fib_index, &mpfx, MFIB_SOURCE_VXLAN_GPE, &path); /* * Create the mcast adjacency to send traffic to the group */ ai = adj_mcast_add_or_lock (fp, fib_proto_to_link (fp), a->mcast_sw_if_index); /* * create a new end-point */ mcast_shared_add (&t->remote, mfei, ai); } dpo_id_t dpo = DPO_INVALID; mcast_shared_t ep = mcast_shared_get (&t->remote); /* Stack shared mcast remote mac addr rewrite on encap */ dpo_set (&dpo, DPO_ADJACENCY_MCAST, fib_proto_to_dpo (fp), ep.mcast_adj_index); dpo_stack_from_node (encap_index, &t->next_dpo, &dpo); dpo_reset (&dpo); flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER; } vnet_get_sw_interface (vnet_get_main (), sw_if_index)->flood_class = flood_class; } else { /* deleting a tunnel: tunnel must exist */ if (!p) return VNET_API_ERROR_NO_SUCH_ENTRY; t = pool_elt_at_index (ngm->tunnels, p[0]); sw_if_index = t->sw_if_index; vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */ ); vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, t->sw_if_index); si->flags |= VNET_SW_INTERFACE_FLAG_HIDDEN; set_int_l2_mode (ngm->vlib_main, vnm, MODE_L3, t->sw_if_index, 0, L2_BD_PORT_TYPE_NORMAL, 0, 0); vec_add1 (ngm->free_vxlan_gpe_tunnel_hw_if_indices, t->hw_if_index); ngm->tunnel_index_by_sw_if_index[t->sw_if_index] = ~0; if (!is_ip6) hash_unset (ngm->vxlan4_gpe_tunnel_by_key, key4.as_u64); else hash_unset_mem_free (&ngm->vxlan6_gpe_tunnel_by_key, &key6); if (!ip46_address_is_multicast (&t->remote)) { vtep_addr_unref (&t->local); fib_entry_untrack (t->fib_entry_index, t->sibling_index); } else if (vtep_addr_unref (&t->remote) == 0) { mcast_shared_remove (&t->remote); } fib_node_deinit (&t->node); vec_free (t->rewrite); pool_put (ngm->tunnels, t); } if (sw_if_indexp) *sw_if_indexp = sw_if_index; if (a->is_add) { /* register udp ports */ if (!is_ip6 && !udp_is_valid_dst_port (UDP_DST_PORT_VXLAN_GPE, 1)) udp_register_dst_port (ngm->vlib_main, UDP_DST_PORT_VXLAN_GPE, vxlan4_gpe_input_node.index, 1 /* is_ip4 */ ); if (is_ip6 && !udp_is_valid_dst_port (UDP_DST_PORT_VXLAN6_GPE, 0)) udp_register_dst_port (ngm->vlib_main, UDP_DST_PORT_VXLAN6_GPE, vxlan6_gpe_input_node.index, 0 /* is_ip4 */ ); } return 0; } static clib_error_t * vxlan_gpe_add_del_tunnel_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; ip46_address_t local, remote; u8 local_set = 0; u8 remote_set = 0; u8 grp_set = 0; u8 ipv4_set = 0; u8 ipv6_set = 0; u32 mcast_sw_if_index = ~0; u32 encap_fib_index = 0; u32 decap_fib_index = 0; u8 protocol = VXLAN_GPE_PROTOCOL_IP4; u32 vni; u8 vni_set = 0; int rv; u32 tmp; vnet_vxlan_gpe_add_del_tunnel_args_t _a, *a = &_a; u32 sw_if_index; clib_error_t *error = NULL; /* 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, "del")) is_add = 0; else if (unformat (line_input, "local %U", unformat_ip4_address, &local.ip4)) { local_set = 1; ipv4_set = 1; } else if (unformat (line_input, "remote %U", unformat_ip4_address, &remote.ip4)) { remote_set = 1; ipv4_set = 1; } else if (unformat (line_input, "local %U", unformat_ip6_address, &local.ip6)) { local_set = 1; ipv6_set = 1; } else if (unformat (line_input, "remote %U", unformat_ip6_address, &remote.ip6)) { remote_set = 1; ipv6_set = 1; } else if (unformat (line_input, "group %U %U", unformat_ip4_address, &remote.ip4, unformat_vnet_sw_interface, vnet_get_main (), &mcast_sw_if_index)) { grp_set = remote_set = 1; ipv4_set = 1; } else if (unformat (line_input, "group %U %U", unformat_ip6_address, &remote.ip6, unformat_vnet_sw_interface, vnet_get_main (), &mcast_sw_if_index)) { grp_set = remote_set = 1; ipv6_set = 1; } else if (unformat (line_input, "encap-vrf-id %d", &tmp)) { if (ipv6_set) encap_fib_index = fib_table_find (FIB_PROTOCOL_IP6, tmp); else encap_fib_index = fib_table_find (FIB_PROTOCOL_IP4, tmp); if (encap_fib_index == ~0) { error = clib_error_return (0, "nonexistent encap fib id %d", tmp); goto done; } } else if (unformat (line_input, "decap-vrf-id %d", &tmp)) { if (ipv6_set) decap_fib_index = fib_table_find (FIB_PROTOCOL_IP6, tmp); else decap_fib_index = fib_table_find (FIB_PROTOCOL_IP4, tmp); if (decap_fib_index == ~0) { error = clib_error_return (0, "nonexistent decap fib id %d", tmp); goto done; } } else if (unformat (line_input, "vni %d", &vni)) vni_set = 1; else if (unformat (line_input, "next-ip4")) protocol = VXLAN_GPE_PROTOCOL_IP4; else if (unformat (line_input, "next-ip6")) protocol = VXLAN_GPE_PROTOCOL_IP6; else if (unformat (line_input, "next-ethernet")) protocol = VXLAN_GPE_PROTOCOL_ETHERNET; else if (unformat (line_input, "next-nsh")) protocol = VXLAN_GPE_PROTOCOL_NSH; else { error = clib_error_return (0, "parse error: '%U'", format_unformat_error, line_input); goto done; } } if (local_set == 0) { error = clib_error_return (0, "tunnel local address not specified"); goto done; } if (remote_set == 0) { error = clib_error_return (0, "tunnel remote address not specified"); goto done; } if (grp_set && !ip46_address_is_multicast (&remote)) { error = clib_error_return (0, "tunnel group address not multicast"); goto done; } if (grp_set == 0 && ip46_address_is_multicast (&remote)) { error = clib_error_return (0, "remote address must be unicast"); goto done; } if (grp_set && mcast_sw_if_index == ~0) { error = clib_error_return (0, "tunnel nonexistent multicast device"); goto done; } if (ipv4_set && ipv6_set) { error = clib_error_return (0, "both IPv4 and IPv6 addresses specified"); goto done; } if ((ipv4_set && memcmp (&local.ip4, &remote.ip4, sizeof (local.ip4)) == 0) || (ipv6_set && memcmp (&local.ip6, &remote.ip6, sizeof (local.ip6)) == 0)) { error = clib_error_return (0, "src and remote addresses are identical"); goto done; } if (vni_set == 0) { error = clib_error_return (0, "vni not specified"); goto done; } clib_memset (a, 0, sizeof (*a)); a->is_add = is_add; a->is_ip6 = ipv6_set; /* *INDENT-OFF* */ #define _(x) a->x = x; foreach_gpe_copy_field; if (ipv4_set) foreach_copy_ipv4 else foreach_copy_ipv6 #undef _ /* *INDENT-ON* */ rv = vnet_vxlan_gpe_add_del_tunnel (a, &sw_if_index); switch (rv) { case 0: vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, vnet_get_main (), sw_if_index); break; case VNET_API_ERROR_INVALID_DECAP_NEXT: error = clib_error_return (0, "invalid decap-next..."); goto done; case VNET_API_ERROR_TUNNEL_EXIST: error = clib_error_return (0, "tunnel already exists..."); goto done; case VNET_API_ERROR_NO_SUCH_ENTRY: error = clib_error_return (0, "tunnel does not exist..."); goto done; default: error = clib_error_return (0, "vnet_vxlan_gpe_add_del_tunnel returned %d", rv); goto done; } done: unformat_free (line_input); return error; } /*? * Add or delete a VXLAN-GPE Tunnel. * * VXLAN-GPE provides the features needed to allow L2 bridge domains (BDs) * to span multiple servers. This is done by building an L2 overlay on * top of an L3 network underlay using VXLAN-GPE tunnels. * * This makes it possible for servers to be co-located in the same data * center or be separated geographically as long as they are reachable * through the underlay L3 network. * * You can refer to this kind of L2 overlay bridge domain as a VXLAN-GPE segment. * * @cliexpar * Example of how to create a VXLAN-GPE Tunnel: * @cliexcmd{create vxlan-gpe tunnel local 10.0.3.1 remote 10.0.3.3 vni 13 encap-vrf-id 7} * Example of how to delete a VXLAN-GPE Tunnel: * @cliexcmd{create vxlan-gpe tunnel local 10.0.3.1 remote 10.0.3.3 vni 13 del} ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (create_vxlan_gpe_tunnel_command, static) = { .path = "create vxlan-gpe tunnel", .short_help = "create vxlan-gpe tunnel local <local-addr> " " {remote <remote-addr>|group <mcast-addr> <intf-name>}" " vni <nn> [next-ip4][next-ip6][next-ethernet][next-nsh]" " [encap-vrf-id <nn>] [decap-vrf-id <nn>] [del]\n", .function = vxlan_gpe_add_del_tunnel_command_fn, }; /* *INDENT-ON* */ /** * @brief CLI function for showing VXLAN GPE tunnels * * @param *vm * @param *input * @param *cmd * * @return error * */ static clib_error_t * show_vxlan_gpe_tunnel_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { vxlan_gpe_main_t *ngm = &vxlan_gpe_main; vxlan_gpe_tunnel_t *t; if (pool_elts (ngm->tunnels) == 0) vlib_cli_output (vm, "No vxlan-gpe tunnels configured."); /* *INDENT-OFF* */ pool_foreach (t, ngm->tunnels, ({ vlib_cli_output (vm, "%U", format_vxlan_gpe_tunnel, t); })); /* *INDENT-ON* */ return 0; } /*? * Display all the VXLAN-GPE Tunnel entries. * * @cliexpar * Example of how to display the VXLAN-GPE Tunnel entries: * @cliexstart{show vxlan-gpe tunnel} * [0] local 10.0.3.1 remote 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2 * @cliexend ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_vxlan_gpe_tunnel_command, static) = { .path = "show vxlan-gpe", .function = show_vxlan_gpe_tunnel_command_fn, }; /* *INDENT-ON* */ void vnet_int_vxlan_gpe_bypass_mode (u32 sw_if_index, u8 is_ip6, u8 is_enable) { if (is_ip6) vnet_feature_enable_disable ("ip6-unicast", "ip6-vxlan-gpe-bypass", sw_if_index, is_enable, 0, 0); else vnet_feature_enable_disable ("ip4-unicast", "ip4-vxlan-gpe-bypass", sw_if_index, is_enable, 0, 0); } static clib_error_t * set_ip_vxlan_gpe_bypass (u32 is_ip6, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; vnet_main_t *vnm = vnet_get_main (); clib_error_t *error = 0; u32 sw_if_index, is_enable; sw_if_index = ~0; is_enable = 1; if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat_user (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index)) ; else if (unformat (line_input, "del")) is_enable = 0; else { error = unformat_parse_error (line_input); goto done; } } if (~0 == sw_if_index) { error = clib_error_return (0, "unknown interface `%U'", format_unformat_error, line_input); goto done; } vnet_int_vxlan_gpe_bypass_mode (sw_if_index, is_ip6, is_enable); done: unformat_free (line_input); return error; } static clib_error_t * set_ip4_vxlan_gpe_bypass (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { return set_ip_vxlan_gpe_bypass (0, input, cmd); } /*? * This command adds the 'ip4-vxlan-gpe-bypass' graph node for a given interface. * By adding the IPv4 vxlan-gpe-bypass graph node to an interface, the node checks * for and validate input vxlan_gpe packet and bypass ip4-lookup, ip4-local, * ip4-udp-lookup nodes to speedup vxlan_gpe packet forwarding. This node will * cause extra overhead to for non-vxlan_gpe packets which is kept at a minimum. * * @cliexpar * @parblock * Example of graph node before ip4-vxlan-gpe-bypass is enabled: * @cliexstart{show vlib graph ip4-vxlan-gpe-bypass} * Name Next Previous * ip4-vxlan-gpe-bypass error-drop [0] * vxlan4-gpe-input [1] * ip4-lookup [2] * @cliexend * * Example of how to enable ip4-vxlan-gpe-bypass on an interface: * @cliexcmd{set interface ip vxlan-gpe-bypass GigabitEthernet2/0/0} * * Example of graph node after ip4-vxlan-gpe-bypass is enabled: * @cliexstart{show vlib graph ip4-vxlan-gpe-bypass} * Name Next Previous * ip4-vxlan-gpe-bypass error-drop [0] ip4-input * vxlan4-gpe-input [1] ip4-input-no-checksum * ip4-lookup [2] * @cliexend * * Example of how to display the feature enabled on an interface: * @cliexstart{show ip interface features GigabitEthernet2/0/0} * IP feature paths configured on GigabitEthernet2/0/0... * ... * ipv4 unicast: * ip4-vxlan-gpe-bypass * ip4-lookup * ... * @cliexend * * Example of how to disable ip4-vxlan-gpe-bypass on an interface: * @cliexcmd{set interface ip vxlan-gpe-bypass GigabitEthernet2/0/0 del} * @endparblock ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (set_interface_ip_vxlan_gpe_bypass_command, static) = { .path = "set interface ip vxlan-gpe-bypass", .function = set_ip4_vxlan_gpe_bypass, .short_help = "set interface ip vxlan-gpe-bypass <interface> [del]", }; /* *INDENT-ON* */ static clib_error_t * set_ip6_vxlan_gpe_bypass (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { return set_ip_vxlan_gpe_bypass (1, input, cmd); } /*? * This command adds the 'ip6-vxlan-gpe-bypass' graph node for a given interface. * By adding the IPv6 vxlan-gpe-bypass graph node to an interface, the node checks * for and validate input vxlan_gpe packet and bypass ip6-lookup, ip6-local, * ip6-udp-lookup nodes to speedup vxlan_gpe packet forwarding. This node will * cause extra overhead to for non-vxlan_gpe packets which is kept at a minimum. * * @cliexpar * @parblock * Example of graph node before ip6-vxlan-gpe-bypass is enabled: * @cliexstart{show vlib graph ip6-vxlan-gpe-bypass} * Name Next Previous * ip6-vxlan-gpe-bypass error-drop [0] * vxlan6-gpe-input [1] * ip6-lookup [2] * @cliexend * * Example of how to enable ip6-vxlan-gpe-bypass on an interface: * @cliexcmd{set interface ip6 vxlan-gpe-bypass GigabitEthernet2/0/0} * * Example of graph node after ip6-vxlan-gpe-bypass is enabled: * @cliexstart{show vlib graph ip6-vxlan-gpe-bypass} * Name Next Previous * ip6-vxlan-gpe-bypass error-drop [0] ip6-input * vxlan6-gpe-input [1] ip4-input-no-checksum * ip6-lookup [2] * @cliexend * * Example of how to display the feature enabled on an interface: * @cliexstart{show ip interface features GigabitEthernet2/0/0} * IP feature paths configured on GigabitEthernet2/0/0... * ... * ipv6 unicast: * ip6-vxlan-gpe-bypass * ip6-lookup * ... * @cliexend * * Example of how to disable ip6-vxlan-gpe-bypass on an interface: * @cliexcmd{set interface ip6 vxlan-gpe-bypass GigabitEthernet2/0/0 del} * @endparblock ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (set_interface_ip6_vxlan_gpe_bypass_command, static) = { .path = "set interface ip6 vxlan-gpe-bypass", .function = set_ip6_vxlan_gpe_bypass, .short_help = "set interface ip6 vxlan-gpe-bypass <interface> [del]", }; /* *INDENT-ON* */ /* *INDENT-OFF* */ VNET_FEATURE_INIT (ip4_vxlan_gpe_bypass, static) = { .arc_name = "ip4-unicast", .node_name = "ip4-vxlan-gpe-bypass", .runs_before = VNET_FEATURES ("ip4-lookup"), }; VNET_FEATURE_INIT (ip6_vxlan_gpe_bypass, static) = { .arc_name = "ip6-unicast", .node_name = "ip6-vxlan-gpe-bypass", .runs_before = VNET_FEATURES ("ip6-lookup"), }; /* *INDENT-ON* */ /** * @brief Feature init function for VXLAN GPE * * @param *vm * * @return error * */ clib_error_t * vxlan_gpe_init (vlib_main_t * vm) { vxlan_gpe_main_t *ngm = &vxlan_gpe_main; ngm->vnet_main = vnet_get_main (); ngm->vlib_main = vm; ngm->vxlan4_gpe_tunnel_by_key = hash_create_mem (0, sizeof (vxlan4_gpe_tunnel_key_t), sizeof (uword)); ngm->vxlan6_gpe_tunnel_by_key = hash_create_mem (0, sizeof (vxlan6_gpe_tunnel_key_t), sizeof (uword)); ngm->mcast_shared = hash_create_mem (0, sizeof (ip46_address_t), sizeof (mcast_shared_t)); ngm->vtep6 = hash_create_mem (0, sizeof (ip6_address_t), sizeof (uword)); /* Register the list of standard decap protocols supported */ vxlan_gpe_register_decap_protocol (VXLAN_GPE_PROTOCOL_IP4, VXLAN_GPE_INPUT_NEXT_IP4_INPUT); vxlan_gpe_register_decap_protocol (VXLAN_GPE_PROTOCOL_IP6, VXLAN_GPE_INPUT_NEXT_IP6_INPUT); vxlan_gpe_register_decap_protocol (VXLAN_GPE_PROTOCOL_ETHERNET, VXLAN_GPE_INPUT_NEXT_L2_INPUT); fib_node_register_type (FIB_NODE_TYPE_VXLAN_GPE_TUNNEL, &vxlan_gpe_vft); return 0; } VLIB_INIT_FUNCTION (vxlan_gpe_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */