From 7cd468a3d7dee7d6c92f69a0bb7061ae208ec727 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Mon, 19 Dec 2016 23:05:39 +0100 Subject: Reorganize source tree to use single autotools instance Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion --- src/vnet/vxlan/vxlan.h | 199 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 199 insertions(+) create mode 100644 src/vnet/vxlan/vxlan.h (limited to 'src/vnet/vxlan/vxlan.h') diff --git a/src/vnet/vxlan/vxlan.h b/src/vnet/vxlan/vxlan.h new file mode 100644 index 00000000..7605d94a --- /dev/null +++ b/src/vnet/vxlan/vxlan.h @@ -0,0 +1,199 @@ +/* + * 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. + */ +#ifndef included_vnet_vxlan_h +#define included_vnet_vxlan_h + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +typedef CLIB_PACKED (struct { + ip4_header_t ip4; /* 20 bytes */ + udp_header_t udp; /* 8 bytes */ + vxlan_header_t vxlan; /* 8 bytes */ +}) ip4_vxlan_header_t; + +typedef CLIB_PACKED (struct { + ip6_header_t ip6; /* 40 bytes */ + udp_header_t udp; /* 8 bytes */ + vxlan_header_t vxlan; /* 8 bytes */ +}) ip6_vxlan_header_t; + +typedef CLIB_PACKED(struct { + /* + * Key fields: ip src and vxlan vni on incoming VXLAN packet + * all fields in NET byte order + */ + union { + struct { + u32 src; + u32 vni; /* shifted left 8 bits */ + }; + u64 as_u64; + }; +}) vxlan4_tunnel_key_t; + +typedef CLIB_PACKED(struct { + /* + * Key fields: ip src and vxlan vni on incoming VXLAN packet + * all fields in NET byte order + */ + ip6_address_t src; + u32 vni; /* shifted left 8 bits */ +}) vxlan6_tunnel_key_t; + +typedef struct { + /* Rewrite string. $$$$ embed vnet_rewrite header */ + u8 * rewrite; + + /* FIB DPO for IP forwarding of VXLAN encap packet */ + dpo_id_t next_dpo; + + /* storage for the hash key */ + union { + vxlan4_tunnel_key_t *key4; /* unused for now */ + vxlan6_tunnel_key_t *key6; + }; + + /* vxlan VNI in HOST byte order */ + u32 vni; + + /* tunnel src and dst addresses */ + ip46_address_t src; + ip46_address_t dst; + + /* mcast packet output intfc index (used only if dst is mcast) */ + u32 mcast_sw_if_index; + + /* decap next index */ + u32 decap_next_index; + + /* The FIB index for src/dst addresses */ + u32 encap_fib_index; + + /* vnet intfc index */ + u32 sw_if_index; + u32 hw_if_index; + + /** + * Linkage into the FIB object graph + */ + fib_node_t node; + + /* + * The FIB entry for (depending on VXLAN tunnel is unicast or mcast) + * sending unicast VXLAN encap packets or receiving mcast VXLAN packets + */ + fib_node_index_t fib_entry_index; + adj_index_t mcast_adj_index; + + /** + * The tunnel is a child of the FIB entry for its desintion. This is + * so it receives updates when the forwarding information for that entry + * changes. + * The tunnels sibling index on the FIB entry's dependency list. + */ + u32 sibling_index; +} vxlan_tunnel_t; + +#define foreach_vxlan_input_next \ +_(DROP, "error-drop") \ +_(L2_INPUT, "l2-input") + +typedef enum { +#define _(s,n) VXLAN_INPUT_NEXT_##s, + foreach_vxlan_input_next +#undef _ + VXLAN_INPUT_N_NEXT, +} vxlan_input_next_t; + +typedef enum { +#define vxlan_error(n,s) VXLAN_ERROR_##n, +#include +#undef vxlan_error + VXLAN_N_ERROR, +} vxlan_input_error_t; + +typedef struct { + ip46_address_t ip; + fib_node_index_t fib_entry_index; + adj_index_t mcast_adj_index; +} mcast_remote_t; + +typedef struct { + /* vector of encap tunnel instances */ + vxlan_tunnel_t * tunnels; + + /* lookup tunnel by key */ + uword * vxlan4_tunnel_by_key; /* keyed on ipv4.dst + vni */ + uword * vxlan6_tunnel_by_key; /* keyed on ipv6.dst + vni */ + + /* local VTEP IPs ref count used by vxlan-bypass node to check if + received VXLAN packet DIP matches any local VTEP address */ + uword * vtep4; /* local ip4 VTEPs keyed on their ip4 addr */ + uword * vtep6; /* local ip6 VTEPs keyed on their ip6 addr */ + + /* set of active remote mcast VTEP */ + mcast_remote_t * mcast_eps; + uword * mcast_ep_by_ip; /* mcast VTEPs keyed on their ip46 addr */ + + /* Free vlib hw_if_indices */ + u32 * free_vxlan_tunnel_hw_if_indices; + + /* Mapping from sw_if_index to tunnel index */ + u32 * tunnel_index_by_sw_if_index; + + /* convenience */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} vxlan_main_t; + +vxlan_main_t vxlan_main; + +extern vlib_node_registration_t vxlan4_input_node; +extern vlib_node_registration_t vxlan6_input_node; +extern vlib_node_registration_t vxlan4_encap_node; +extern vlib_node_registration_t vxlan6_encap_node; + +u8 * format_vxlan_encap_trace (u8 * s, va_list * args); + +typedef struct { + u8 is_add; + + /* we normally use is_ip4, but since this adds to the + * structure, this seems less of abreaking change */ + u8 is_ip6; + ip46_address_t src, dst; + u32 mcast_sw_if_index; + u32 encap_fib_index; + u32 decap_next_index; + u32 vni; +} vnet_vxlan_add_del_tunnel_args_t; + +int vnet_vxlan_add_del_tunnel +(vnet_vxlan_add_del_tunnel_args_t *a, u32 * sw_if_indexp); + +#endif /* included_vnet_vxlan_h */ -- cgit 1.2.3-korg