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Diffstat (limited to 'vnet/vnet/gre/gre.h')
| -rw-r--r-- | vnet/vnet/gre/gre.h | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/vnet/vnet/gre/gre.h b/vnet/vnet/gre/gre.h deleted file mode 100644 index b6544b9b737..00000000000 --- a/vnet/vnet/gre/gre.h +++ /dev/null @@ -1,235 +0,0 @@ -/* - * gre.h: types/functions for gre. - * - * Copyright (c) 2012 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_gre_h -#define included_gre_h - -#include <vnet/vnet.h> -#include <vnet/gre/packet.h> -#include <vnet/ip/ip.h> -#include <vnet/ip/ip4.h> -#include <vnet/ip/ip4_packet.h> -#include <vnet/pg/pg.h> -#include <vnet/ip/format.h> -#include <vnet/adj/adj_types.h> - -extern vnet_hw_interface_class_t gre_hw_interface_class; - -typedef enum { -#define gre_error(n,s) GRE_ERROR_##n, -#include <vnet/gre/error.def> -#undef gre_error - GRE_N_ERROR, -} gre_error_t; - -/** - * A GRE payload protocol registration - */ -typedef struct { - /** Name (a c string). */ - char * name; - - /** GRE protocol type in host byte order. */ - gre_protocol_t protocol; - - /** Node which handles this type. */ - u32 node_index; - - /** Next index for this type. */ - u32 next_index; -} gre_protocol_info_t; - -/** - * @brief The GRE tunnel type - */ -typedef enum gre_tunnel_tyoe_t_ -{ - /** - * L3 GRE (i.e. this tunnel is in L3 mode) - */ - GRE_TUNNEL_TYPE_L3, - /** - * Transparent Ethernet Bridging - the tunnel is in L2 mode - */ - GRE_TUNNEL_TYPE_TEB, -} gre_tunnel_type_t; - -#define GRE_TUNNEL_TYPE_NAMES { \ - [GRE_TUNNEL_TYPE_L3] = "L3", \ - [GRE_TUNNEL_TYPE_TEB] = "TEB", \ -} - -#define GRE_TUNNEL_N_TYPES ((gre_tunnel_type_t)GRE_TUNNEL_TYPE_TEB+1) - -/** - * @brief A representation of a GRE tunnel - */ -typedef struct { - /** - * Linkage into the FIB object graph - */ - fib_node_t node; - - /** - * The tunnel's source/local address - */ - ip4_address_t tunnel_src; - /** - * The tunnel's destination/remote address - */ - ip4_address_t tunnel_dst; - /** - * The FIB in which the src.dst address are present - */ - u32 outer_fib_index; - u32 hw_if_index; - u32 sw_if_index; - gre_tunnel_type_t type; - - /** - * The FIB entry sourced by the tunnel for its destination prefix - */ - fib_node_index_t fib_entry_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; - - /** - * on a L2 tunnel this is the VLIB arc from the L2-tx to the l2-midchain - */ - u32 l2_tx_arc; - - /** - * an L2 tunnel always rquires an L2 midchain. cache here for DP. - */ - adj_index_t l2_adj_index; -} gre_tunnel_t; - -/** - * @brief GRE related global data - */ -typedef struct { - /** - * pool of tunnel instances - */ - gre_tunnel_t *tunnels; - - /** - * GRE payload protocol registrations - */ - gre_protocol_info_t * protocol_infos; - - /** - * Hash tables mapping name/protocol to protocol info index. - */ - uword * protocol_info_by_name, * protocol_info_by_protocol; - /** - * Hash mapping src/dst addr pair to tunnel - */ - uword * tunnel_by_key; - - /** - * Free vlib hw_if_indices. - * A free list per-tunnel type since the interfaces ctreated are fo different - * types and we cannot change the type. - */ - u32 * free_gre_tunnel_hw_if_indices[GRE_TUNNEL_N_TYPES]; - - /** - * 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; -} gre_main_t; - -/** - * @brief IPv4 and GRE header. - */ -typedef CLIB_PACKED (struct { - ip4_header_t ip4; - gre_header_t gre; -}) ip4_and_gre_header_t; - -always_inline gre_protocol_info_t * -gre_get_protocol_info (gre_main_t * em, gre_protocol_t protocol) -{ - uword * p = hash_get (em->protocol_info_by_protocol, protocol); - return p ? vec_elt_at_index (em->protocol_infos, p[0]) : 0; -} - -gre_main_t gre_main; - -/* Register given node index to take input for given gre type. */ -void -gre_register_input_type (vlib_main_t * vm, - gre_protocol_t protocol, - u32 node_index); - -extern clib_error_t * gre_interface_admin_up_down (vnet_main_t * vnm, - u32 hw_if_index, - u32 flags); - -extern void gre_tunnel_stack (adj_index_t ai); -extern void gre_update_adj (vnet_main_t * vnm, - u32 sw_if_index, - adj_index_t ai); - -format_function_t format_gre_protocol; -format_function_t format_gre_header; -format_function_t format_gre_header_with_length; - -extern vlib_node_registration_t gre_input_node; -extern vnet_device_class_t gre_device_class; -extern vnet_device_class_t gre_device_teb_class; - -/* Parse gre protocol as 0xXXXX or protocol name. - In either host or network byte order. */ -unformat_function_t unformat_gre_protocol_host_byte_order; -unformat_function_t unformat_gre_protocol_net_byte_order; - -/* Parse gre header. */ -unformat_function_t unformat_gre_header; -unformat_function_t unformat_pg_gre_header; - -void -gre_register_input_protocol (vlib_main_t * vm, - gre_protocol_t protocol, - u32 node_index); - -/* manually added to the interface output node in gre.c */ -#define GRE_OUTPUT_NEXT_LOOKUP 1 - -typedef struct { - u8 is_add; - - ip4_address_t src, dst; - u32 outer_fib_id; - u8 teb; -} vnet_gre_add_del_tunnel_args_t; - -int vnet_gre_add_del_tunnel - (vnet_gre_add_del_tunnel_args_t *a, u32 * sw_if_indexp); - -#endif /* included_gre_h */ |