| /* |
| * Copyright (c) 2018 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_gbp_h |
| #define included_vnet_vxlan_gbp_h |
| |
| #include <vppinfra/error.h> |
| #include <vppinfra/hash.h> |
| #include <vppinfra/bihash_16_8.h> |
| #include <vppinfra/bihash_24_8.h> |
| #include <vnet/vnet.h> |
| #include <vnet/ip/ip.h> |
| #include <vnet/l2/l2_input.h> |
| #include <vnet/l2/l2_output.h> |
| #include <vnet/l2/l2_bd.h> |
| #include <vnet/ethernet/ethernet.h> |
| #include <vnet/vxlan-gbp/vxlan_gbp_packet.h> |
| #include <vnet/ip/ip4_packet.h> |
| #include <vnet/ip/ip6_packet.h> |
| #include <vnet/udp/udp.h> |
| #include <vnet/dpo/dpo.h> |
| #include <vnet/adj/adj_types.h> |
| |
| /* *INDENT-OFF* */ |
| typedef CLIB_PACKED (struct { |
| ip4_header_t ip4; /* 20 bytes */ |
| udp_header_t udp; /* 8 bytes */ |
| vxlan_gbp_header_t vxlan_gbp; /* 8 bytes */ |
| }) ip4_vxlan_gbp_header_t; |
| |
| typedef CLIB_PACKED (struct { |
| ip6_header_t ip6; /* 40 bytes */ |
| udp_header_t udp; /* 8 bytes */ |
| vxlan_gbp_header_t vxlan_gbp; /* 8 bytes */ |
| }) ip6_vxlan_gbp_header_t; |
| /* *INDENT-ON* */ |
| |
| /* |
| * Key fields: remote ip, vni on incoming VXLAN packet |
| * all fields in NET byte order |
| */ |
| typedef clib_bihash_kv_16_8_t vxlan4_gbp_tunnel_key_t; |
| |
| /* |
| * Key fields: remote ip, vni and fib index on incoming VXLAN packet |
| * ip, vni fields in NET byte order |
| * fib index field in host byte order |
| */ |
| typedef clib_bihash_kv_24_8_t vxlan6_gbp_tunnel_key_t; |
| |
| typedef enum vxlan_gbp_tunnel_mode_t_ |
| { |
| VXLAN_GBP_TUNNEL_MODE_L2, |
| VXLAN_GBP_TUNNEL_MODE_L3, |
| } vxlan_gbp_tunnel_mode_t; |
| |
| extern u8 *format_vxlan_gbp_tunnel_mode (u8 * s, va_list * args); |
| |
| typedef struct |
| { |
| /* Required for pool_get_aligned */ |
| CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); |
| |
| /* FIB DPO for IP forwarding of VXLAN encap packet */ |
| dpo_id_t next_dpo; |
| |
| /* flags */ |
| u16 flags; |
| |
| /* 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; |
| |
| /* The FIB index for src/dst addresses */ |
| u32 encap_fib_index; |
| |
| /* vnet intfc index */ |
| u32 sw_if_index; |
| u32 hw_if_index; |
| |
| /** Next node after VxLAN-GBP encap */ |
| uword encap_next_node; |
| |
| /** |
| * Tunnel mode. |
| * L2 tunnels decap to L2 path, L3 tunnels to the L3 path |
| */ |
| vxlan_gbp_tunnel_mode_t mode; |
| |
| /** |
| * Linkage into the FIB object graph |
| */ |
| fib_node_t node; |
| |
| /* |
| * The FIB entry for (depending on VXLAN-GBP tunnel is unicast or mcast) |
| * sending unicast VXLAN-GBP encap packets or receiving mcast VXLAN-GBP 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 destination. 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; |
| |
| u32 dev_instance; /* Real device instance in tunnel vector */ |
| u32 user_instance; /* Instance name being shown to user */ |
| |
| vnet_declare_rewrite (VLIB_BUFFER_PRE_DATA_SIZE); |
| } vxlan_gbp_tunnel_t; |
| |
| #define foreach_vxlan_gbp_input_next \ |
| _(DROP, "error-drop") \ |
| _(PUNT, "punt-dispatch") \ |
| _(L2_INPUT, "l2-input") \ |
| _(IP4_INPUT, "ip4-input") \ |
| _(IP6_INPUT, "ip6-input") |
| |
| typedef enum |
| { |
| #define _(s,n) VXLAN_GBP_INPUT_NEXT_##s, |
| foreach_vxlan_gbp_input_next |
| #undef _ |
| VXLAN_GBP_INPUT_N_NEXT, |
| } vxlan_gbp_input_next_t; |
| |
| typedef enum |
| { |
| #define vxlan_gbp_error(n,s) VXLAN_GBP_ERROR_##n, |
| #include <vnet/vxlan-gbp/vxlan_gbp_error.def> |
| #undef vxlan_gbp_error |
| VXLAN_GBP_N_ERROR, |
| } vxlan_gbp_input_error_t; |
| |
| /** |
| * Call back function packets that do not match a configured tunnel |
| */ |
| typedef vxlan_gbp_input_next_t (*vxlan_bgp_no_tunnel_t) (vlib_buffer_t * b, |
| u32 thread_index, |
| u8 is_ip6); |
| |
| typedef struct |
| { |
| /* vector of encap tunnel instances */ |
| vxlan_gbp_tunnel_t *tunnels; |
| |
| /* lookup tunnel by key */ |
| clib_bihash_16_8_t vxlan4_gbp_tunnel_by_key; /* keyed on ipv4.dst + fib + vni */ |
| clib_bihash_24_8_t vxlan6_gbp_tunnel_by_key; /* keyed on ipv6.dst + fib + 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 */ |
| |
| /* mcast shared info */ |
| uword *mcast_shared; /* keyed on mcast ip46 addr */ |
| |
| /* Mapping from sw_if_index to tunnel index */ |
| u32 *tunnel_index_by_sw_if_index; |
| |
| /* On demand udp port registration */ |
| u32 udp_ports_registered; |
| |
| /* convenience */ |
| vlib_main_t *vlib_main; |
| vnet_main_t *vnet_main; |
| |
| /* Record used instances */ |
| uword *instance_used; |
| |
| /** |
| * Punt reasons for no such tunnel |
| */ |
| vlib_punt_reason_t punt_no_such_tunnel[FIB_PROTOCOL_IP_MAX]; |
| } vxlan_gbp_main_t; |
| |
| extern vxlan_gbp_main_t vxlan_gbp_main; |
| |
| extern vlib_node_registration_t vxlan4_gbp_input_node; |
| extern vlib_node_registration_t vxlan6_gbp_input_node; |
| extern vlib_node_registration_t vxlan4_gbp_encap_node; |
| extern vlib_node_registration_t vxlan6_gbp_encap_node; |
| extern void vxlan_gbp_register_udp_ports (void); |
| extern void vxlan_gbp_unregister_udp_ports (void); |
| |
| u8 *format_vxlan_gbp_encap_trace (u8 * s, va_list * args); |
| |
| typedef struct |
| { |
| u8 is_add; |
| u8 is_ip6; |
| u32 instance; |
| vxlan_gbp_tunnel_mode_t mode; |
| ip46_address_t src, dst; |
| u32 mcast_sw_if_index; |
| u32 encap_fib_index; |
| u32 vni; |
| } vnet_vxlan_gbp_tunnel_add_del_args_t; |
| |
| int vnet_vxlan_gbp_tunnel_add_del |
| (vnet_vxlan_gbp_tunnel_add_del_args_t * a, u32 * sw_if_indexp); |
| int vnet_vxlan_gbp_tunnel_del (u32 sw_if_indexp); |
| |
| void vnet_int_vxlan_gbp_bypass_mode (u32 sw_if_index, u8 is_ip6, |
| u8 is_enable); |
| |
| #endif /* included_vnet_vxlan_gbp_h */ |
| |
| /* |
| * fd.io coding-style-patch-verification: ON |
| * |
| * Local Variables: |
| * eval: (c-set-style "gnu") |
| * End: |
| */ |