diff options
Diffstat (limited to 'src/vnet/sr/sr.h')
| -rwxr-xr-x | src/vnet/sr/sr.h | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/src/vnet/sr/sr.h b/src/vnet/sr/sr.h deleted file mode 100755 index b832c0fc365..00000000000 --- a/src/vnet/sr/sr.h +++ /dev/null @@ -1,323 +0,0 @@ -/* - * 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 Segment Routing data structures definitions - * - */ - -#ifndef included_vnet_sr_h -#define included_vnet_sr_h - -#include <vnet/vnet.h> -#include <vnet/sr/sr_packet.h> -#include <vnet/ip/ip6_packet.h> -#include <vnet/ethernet/ethernet.h> - -#include <stdlib.h> -#include <string.h> - -#define IPv6_DEFAULT_HEADER_LENGTH 40 -#define IPv6_DEFAULT_HOP_LIMIT 64 -#define IPv6_DEFAULT_MAX_MASK_WIDTH 128 - -#define SR_BEHAVIOR_END 1 -#define SR_BEHAVIOR_X 2 -#define SR_BEHAVIOR_D_FIRST 3 /* Unused. Separator in between regular and D */ -#define SR_BEHAVIOR_DX2 4 -#define SR_BEHAVIOR_DX6 5 -#define SR_BEHAVIOR_DX4 6 -#define SR_BEHAVIOR_DT6 7 -#define SR_BEHAVIOR_DT4 8 -#define SR_BEHAVIOR_LAST 9 /* Must always be the last one */ - -#define SR_STEER_L2 2 -#define SR_STEER_IPV4 4 -#define SR_STEER_IPV6 6 - -#define SR_FUNCTION_SIZE 4 -#define SR_ARGUMENT_SIZE 4 - -#define SR_SEGMENT_LIST_WEIGHT_DEFAULT 1 - -/** - * @brief SR Segment List (SID list) - */ -typedef struct -{ - ip6_address_t *segments; /**< SIDs (key) */ - - u32 weight; /**< SID list weight (wECMP / UCMP) */ - - u8 *rewrite; /**< Precomputed rewrite header */ - u8 *rewrite_bsid; /**< Precomputed rewrite header for bindingSID */ - - dpo_id_t bsid_dpo; /**< DPO for Encaps/Insert for BSID */ - dpo_id_t ip6_dpo; /**< DPO for Encaps/Insert IPv6 */ - dpo_id_t ip4_dpo; /**< DPO for Encaps IPv6 */ -} ip6_sr_sl_t; - -/* SR policy types */ -#define SR_POLICY_TYPE_DEFAULT 0 -#define SR_POLICY_TYPE_SPRAY 1 -/** - * @brief SR Policy - */ -typedef struct -{ - u32 *segments_lists; /**< SID lists indexes (vector) */ - - ip6_address_t bsid; /**< BindingSID (key) */ - - u8 type; /**< Type (default is 0) */ - /* SR Policy specific DPO */ - /* IF Type = DEFAULT Then Load Balancer DPO among SID lists */ - /* IF Type = SPRAY then Spray DPO with all SID lists */ - dpo_id_t bsid_dpo; /**< SR Policy specific DPO - BSID */ - dpo_id_t ip4_dpo; /**< SR Policy specific DPO - IPv6 */ - dpo_id_t ip6_dpo; /**< SR Policy specific DPO - IPv4 */ - - u32 fib_table; /**< FIB table */ - - u8 is_encap; /**< Mode (0 is SRH insert, 1 Encaps) */ -} ip6_sr_policy_t; - -/** - * @brief SR LocalSID - */ -typedef struct -{ - ip6_address_t localsid; /**< LocalSID IPv6 address */ - - char end_psp; /**< Combined with End.PSP? */ - - u16 behavior; /**< Behavior associated to this localsid */ - - union - { - u32 sw_if_index; /**< xconnect only */ - u32 vrf_index; /**< vrf only */ - }; - - u32 fib_table; /**< FIB table where localsid is registered */ - - u32 vlan_index; /**< VLAN tag (not an index) */ - - ip46_address_t next_hop; /**< Next_hop for xconnect usage only */ - - u32 nh_adj; /**< Next_adj for xconnect usage only */ - - void *plugin_mem; /**< Memory to be used by the plugin callback functions */ -} ip6_sr_localsid_t; - -typedef int (sr_plugin_callback_t) (ip6_sr_localsid_t * localsid); - -/** - * @brief SR LocalSID behavior registration - */ -typedef struct -{ - u16 sr_localsid_function_number; /**< SR LocalSID plugin function (>SR_BEHAVIOR_LAST) */ - - u8 *function_name; /**< Function name. (key). */ - - u8 *keyword_str; /**< Behavior keyword (i.e. End.X) */ - - u8 *def_str; /**< Behavior definition (i.e. Endpoint with cross-connect) */ - - u8 *params_str; /**< Behavior parameters (i.e. <oif> <IP46next_hop>) */ - - dpo_type_t dpo; /**< DPO type registration */ - - format_function_t *ls_format; /**< LocalSID format function */ - - unformat_function_t *ls_unformat; /**< LocalSID unformat function */ - - sr_plugin_callback_t *creation; /**< Function within plugin that will be called after localsid creation*/ - - sr_plugin_callback_t *removal; /**< Function within plugin that will be called before localsid removal */ -} sr_localsid_fn_registration_t; - -/** - * @brief Steering db key - * - * L3 is IPv4/IPv6 + mask - * L2 is sf_if_index + vlan - */ -typedef struct -{ - union - { - struct - { - ip46_address_t prefix; /**< IP address of the prefix */ - u32 mask_width; /**< Mask width of the prefix */ - u32 fib_table; /**< VRF of the prefix */ - } l3; - struct - { - u32 sw_if_index; /**< Incoming software interface */ - } l2; - }; - u8 traffic_type; /**< Traffic type (IPv4, IPv6, L2) */ - u8 padding[3]; -} sr_steering_key_t; - -typedef struct -{ - sr_steering_key_t classify; /**< Traffic classification */ - u32 sr_policy; /**< SR Policy index */ -} ip6_sr_steering_policy_t; - -/** - * @brief Segment Routing main datastructure - */ -typedef struct -{ - /* L2-input -> SR rewrite next index */ - u32 l2_sr_policy_rewrite_index; - - /* SR SID lists */ - ip6_sr_sl_t *sid_lists; - - /* SR policies */ - ip6_sr_policy_t *sr_policies; - - /* Hash table mapping BindingSID to SR policy */ - mhash_t sr_policies_index_hash; - - /* Pool of SR localsid instances */ - ip6_sr_localsid_t *localsids; - - /* Hash table mapping LOC:FUNC to SR LocalSID instance */ - mhash_t sr_localsids_index_hash; - - /* Pool of SR steer policies instances */ - ip6_sr_steering_policy_t *steer_policies; - - /* Hash table mapping steering rules to SR steer instance */ - mhash_t sr_steer_policies_hash; - - /* L2 steering ifaces - sr_policies */ - u32 *sw_iface_sr_policies; - - /* Spray DPO */ - dpo_type_t sr_pr_spray_dpo_type; - - /* Plugin functions */ - sr_localsid_fn_registration_t *plugin_functions; - - /* Find plugin function by name */ - uword *plugin_functions_by_key; - - /* Counters */ - vlib_combined_counter_main_t sr_ls_valid_counters; - vlib_combined_counter_main_t sr_ls_invalid_counters; - - /* SR Policies FIBs */ - u32 fib_table_ip6; - u32 fib_table_ip4; - - /* convenience */ - vlib_main_t *vlib_main; - vnet_main_t *vnet_main; -} ip6_sr_main_t; - -ip6_sr_main_t sr_main; - -extern vlib_node_registration_t sr_policy_rewrite_encaps_node; -extern vlib_node_registration_t sr_policy_rewrite_insert_node; -extern vlib_node_registration_t sr_localsid_node; -extern vlib_node_registration_t sr_localsid_d_node; - -void sr_dpo_lock (dpo_id_t * dpo); -void sr_dpo_unlock (dpo_id_t * dpo); - -int sr_localsid_register_function (vlib_main_t * vm, u8 * fn_name, - u8 * keyword_str, u8 * def_str, - u8 * params_str, dpo_type_t * dpo, - format_function_t * ls_format, - unformat_function_t * ls_unformat, - sr_plugin_callback_t * creation_fn, - sr_plugin_callback_t * removal_fn); - -int -sr_policy_add (ip6_address_t * bsid, ip6_address_t * segments, - u32 weight, u8 behavior, u32 fib_table, u8 is_encap); -int -sr_policy_mod (ip6_address_t * bsid, u32 index, u32 fib_table, - u8 operation, ip6_address_t * segments, u32 sl_index, - u32 weight); -int sr_policy_del (ip6_address_t * bsid, u32 index); - -int sr_cli_localsid (char is_del, ip6_address_t * localsid_addr, - char end_psp, u8 behavior, u32 sw_if_index, - u32 vlan_index, u32 fib_table, ip46_address_t * nh_addr, - void *ls_plugin_mem); - -int -sr_steering_policy (int is_del, ip6_address_t * bsid, u32 sr_policy_index, - u32 table_id, ip46_address_t * prefix, u32 mask_width, - u32 sw_if_index, u8 traffic_type); - -/** - * @brief SR rewrite string computation for SRH insertion (inline) - * - * @param sl is a vector of IPv6 addresses composing the Segment List - * - * @return precomputed rewrite string for SRH insertion - */ -static inline u8 * -ip6_sr_compute_rewrite_string_insert (ip6_address_t * sl) -{ - ip6_sr_header_t *srh; - ip6_address_t *addrp, *this_address; - u32 header_length = 0; - u8 *rs = NULL; - - header_length = 0; - header_length += sizeof (ip6_sr_header_t); - header_length += (vec_len (sl) + 1) * sizeof (ip6_address_t); - - vec_validate (rs, header_length - 1); - - srh = (ip6_sr_header_t *) rs; - srh->type = ROUTING_HEADER_TYPE_SR; - srh->segments_left = vec_len (sl); - srh->first_segment = vec_len (sl); - srh->length = ((sizeof (ip6_sr_header_t) + - ((vec_len (sl) + 1) * sizeof (ip6_address_t))) / 8) - 1; - srh->flags = 0x00; - srh->reserved = 0x0000; - addrp = srh->segments + vec_len (sl); - vec_foreach (this_address, sl) - { - clib_memcpy (addrp->as_u8, this_address->as_u8, sizeof (ip6_address_t)); - addrp--; - } - return rs; -} - - -#endif /* included_vnet_sr_h */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |