diff options
Diffstat (limited to 'extras/deprecated/vnet/vxlan-gbp/vxlan_gbp.h')
| -rw-r--r-- | extras/deprecated/vnet/vxlan-gbp/vxlan_gbp.h | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/extras/deprecated/vnet/vxlan-gbp/vxlan_gbp.h b/extras/deprecated/vnet/vxlan-gbp/vxlan_gbp.h new file mode 100644 index 00000000000..fe93587cb00 --- /dev/null +++ b/extras/deprecated/vnet/vxlan-gbp/vxlan_gbp.h @@ -0,0 +1,250 @@ +/* + * 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_local.h> +#include <vnet/udp/udp_packet.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; +} 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); + +always_inline u32 +vxlan_gbp_tunnel_by_sw_if_index (u32 sw_if_index) +{ + vxlan_gbp_main_t *vxm = &vxlan_gbp_main; + + if (sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) + return ~0; + + return (vxm->tunnel_index_by_sw_if_index[sw_if_index]); +} + +#endif /* included_vnet_vxlan_gbp_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |