From cbe25aab3be72154f2c706c39eeba6a77f34450f Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Mon, 30 Sep 2019 10:53:31 +0000 Subject: ip: Protocol Independent IP Neighbors Type: feature - ip-neighbour: generic neighbour handling; APIs, DBs, event handling, aging - arp: ARP protocol implementation - ip6-nd; IPv6 neighbor discovery implementation; separate ND, MLD, RA - ip6-link; manage link-local addresses - l2-arp-term; events separated from IP neighbours, since they are not the same. vnet retains just enough education to perform ND/ARP packet construction. arp and ip6-nd to be moved to plugins soon. Change-Id: I88dedd0006b299344f4c7024a0aa5baa6b9a8bbe Signed-off-by: Neale Ranns --- src/vnet/ip-neighbor/ip_neighbor_types.h | 127 +++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 src/vnet/ip-neighbor/ip_neighbor_types.h (limited to 'src/vnet/ip-neighbor/ip_neighbor_types.h') diff --git a/src/vnet/ip-neighbor/ip_neighbor_types.h b/src/vnet/ip-neighbor/ip_neighbor_types.h new file mode 100644 index 00000000000..c6d4e104e8b --- /dev/null +++ b/src/vnet/ip-neighbor/ip_neighbor_types.h @@ -0,0 +1,127 @@ +/* + * ip_neighbor.h: ip neighbor generic services + * + * 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 __INCLUDE_IP_NEIGHBOR_TYPES_H__ +#define __INCLUDE_IP_NEIGHBOR_TYPES_H__ + +#include +#include +#include + +#define IP_SCAN_DISABLED 0 +#define IP_SCAN_V4_NEIGHBORS (1 << 0) +#define IP_SCAN_V6_NEIGHBORS (1 << 1) +#define IP_SCAN_V46_NEIGHBORS (IP_SCAN_V4_NEIGHBORS | IP_SCAN_V6_NEIGHBORS) + +typedef struct +{ + u8 mode; /* 0: disable, 1: ip4, 2: ip6, 3: both */ + u8 scan_interval; /* neighbor scan interval in minutes */ + u8 max_proc_time; /* max processing time per run, in usecs */ + u8 max_update; /* max probe/delete operations per run */ + u8 scan_int_delay; /* delay in msecs, to resume scan on max */ + u8 stale_threshold; /* Threshold in minutes to delete nei entry */ +} ip_neighbor_scan_arg_t; + +typedef enum ip_neighbor_flags_t_ +{ + IP_NEIGHBOR_FLAG_NONE = 0, + IP_NEIGHBOR_FLAG_STATIC = (1 << 0), + IP_NEIGHBOR_FLAG_DYNAMIC = (1 << 1), + IP_NEIGHBOR_FLAG_NO_FIB_ENTRY = (1 << 2), + IP_NEIGHBOR_FLAG_PENDING = (1 << 3), +} __attribute__ ((packed)) ip_neighbor_flags_t; + +typedef struct ip_neighbor_watcher_t_ +{ + u32 ipw_pid; + u32 ipw_client; +} ip_neighbor_watcher_t; + +extern u8 *format_ip_neighbor_watcher (u8 * s, va_list * args); + +typedef struct ip_neighbor_key_t_ +{ + ip46_address_t ipnk_ip; + ip46_type_t ipnk_type; + u32 ipnk_sw_if_index; +} ip_neighbor_key_t; + +/** + * A representation of an IP neighbour/peer + */ +typedef struct ip_neighbor_t_ +{ + /** + * The idempotent key + */ + ip_neighbor_key_t *ipn_key; + + /** + * The learned MAC address of the neighbour + */ + mac_address_t ipn_mac; + + /** + * Falgs for this object + */ + ip_neighbor_flags_t ipn_flags; + + /** + * Aging related data + * - last time the neighbour was probed + * - number of probes - 3 and it's dead + */ + f64 ipn_time_last_updated; + u8 ipn_n_probes; + index_t ipn_elt; + + /** + * The index of the adj fib created for this neighbour + */ + fib_node_index_t ipn_fib_entry_index; +} ip_neighbor_t; + +extern u8 *format_ip_neighbor_flags (u8 * s, va_list * args); +extern u8 *format_ip_neighbor_key (u8 * s, va_list * args); +extern u8 *format_ip_neighbor (u8 * s, va_list * args); + +extern ip_neighbor_t *ip_neighbor_get (index_t ipni); + +typedef struct ip_neighbor_learn_t_ +{ + ip46_address_t ip; + ip46_type_t type; + mac_address_t mac; + u32 sw_if_index; +} ip_neighbor_learn_t; + +typedef struct ip_neighbor_event_t_ +{ + ip_neighbor_watcher_t ipne_watch; + index_t ipne_index; +} ip_neighbor_event_t; + +#endif /* __INCLUDE_IP_NEIGHBOR_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg