pimd/pim_instance.h

   1 /*
   2  * PIM for FRR - PIM Instance
   3  * Copyright (C) 2017 Cumulus Networks, Inc.
   4  * Donald Sharp
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; see the file COPYING; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  19  * MA 02110-1301 USA
  20  */
  21 #ifndef __PIM_INSTANCE_H__
  22 #define __PIM_INSTANCE_H__
  23
  24 #include <mlag.h>
  25
  26 #include "pim_str.h"
  27 #include "pim_msdp.h"
  28 #include "pim_assert.h"
  29 #include "pim_bsm.h"
  30 #include "pim_vxlan_instance.h"
  31 #include "pim_oil.h"
  32 #include "pim_upstream.h"
  33 #include "pim_mroute.h"
  34
  35 enum pim_spt_switchover {
  36         PIM_SPT_IMMEDIATE,
  37         PIM_SPT_INFINITY,
  38 };
  39
  40 /* stats for updates rxed from the MLAG component during the life of a
  41  * session
  42  */
  43 struct pim_mlag_msg_stats {
  44         uint32_t mroute_add_rx;
  45         uint32_t mroute_add_tx;
  46         uint32_t mroute_del_rx;
  47         uint32_t mroute_del_tx;
  48         uint32_t mlag_status_updates;
  49         uint32_t pim_status_updates;
  50         uint32_t vxlan_updates;
  51         uint32_t peer_zebra_status_updates;
  52 };
  53
  54 struct pim_mlag_stats {
  55         /* message stats are reset when the connection to mlagd flaps */
  56         struct pim_mlag_msg_stats msg;
  57         uint32_t mlagd_session_downs;
  58         uint32_t peer_session_downs;
  59         uint32_t peer_zebra_downs;
  60 };
  61
  62 enum pim_mlag_flags {
  63         PIM_MLAGF_NONE = 0,
  64         /* connection to the local MLAG daemon is up */
  65         PIM_MLAGF_LOCAL_CONN_UP = (1 << 0),
  66         /* connection to the MLAG daemon on the peer switch is up. note
  67          * that there is no direct connection between FRR and the peer MLAG
  68          * daemon. this is just a peer-session status provided by the local
  69          * MLAG daemon.
  70          */
  71         PIM_MLAGF_PEER_CONN_UP = (1 << 1),
  72         /* status update rxed from the local daemon */
  73         PIM_MLAGF_STATUS_RXED = (1 << 2),
  74         /* initial dump of data done post peerlink flap */
  75         PIM_MLAGF_PEER_REPLAY_DONE = (1 << 3),
  76         /* zebra is up on the peer */
  77         PIM_MLAGF_PEER_ZEBRA_UP = (1 << 4)
  78 };
  79
  80 struct pim_router {
  81         struct thread_master *master;
  82
  83         uint32_t debugs;
  84
  85         int t_periodic;
  86         struct pim_assert_metric infinite_assert_metric;
  87         long rpf_cache_refresh_delay_msec;
  88         uint32_t register_suppress_time;
  89         int packet_process;
  90         uint32_t register_probe_time;
  91         uint16_t multipath;
  92
  93         /*
  94          * What is the default vrf that we work in
  95          */
  96         vrf_id_t vrf_id;
  97
  98         enum mlag_role mlag_role;
  99         uint32_t pim_mlag_intf_cnt;
 100         /* if true we have registered with MLAG */
 101         bool mlag_process_register;
 102         /* if true local MLAG process reported that it is connected
 103          * with the peer MLAG process
 104          */
 105         bool connected_to_mlag;
 106         /* Holds the client data(unencoded) that need to be pushed to MCLAGD*/
 107         struct stream_fifo *mlag_fifo;
 108         struct stream *mlag_stream;
 109         struct thread *zpthread_mlag_write;
 110         struct in_addr anycast_vtep_ip;
 111         struct in_addr local_vtep_ip;
 112         struct pim_mlag_stats mlag_stats;
 113         enum pim_mlag_flags mlag_flags;
 114         char peerlink_rif[INTERFACE_NAMSIZ];
 115         struct interface *peerlink_rif_p;
 116 };
 117
 118 /* Per VRF PIM DB */
 119 struct pim_instance {
 120         // vrf_id_t vrf_id;
 121         struct vrf *vrf;
 122
 123         struct {
 124                 enum pim_spt_switchover switchover;
 125                 char *plist;
 126         } spt;
 127
 128         /* The name of the register-accept prefix-list */
 129         char *register_plist;
 130
 131         struct hash *rpf_hash;
 132
 133         void *ssm_info; /* per-vrf SSM configuration */
 134
 135         int send_v6_secondary;
 136
 137         struct thread *thread;
 138         int mroute_socket;
 139         int reg_sock; /* Socket to send register msg */
 140         int64_t mroute_socket_creation;
 141         int64_t mroute_add_events;
 142         int64_t mroute_add_last;
 143         int64_t mroute_del_events;
 144         int64_t mroute_del_last;
 145
 146         struct interface *regiface;
 147
 148         // List of static routes;
 149         struct list *static_routes;
 150
 151         // Upstream vrf specific information
 152         struct rb_pim_upstream_head upstream_head;
 153         struct timer_wheel *upstream_sg_wheel;
 154
 155         /*
 156          * RP information
 157          */
 158         struct list *rp_list;
 159         struct route_table *rp_table;
 160
 161         int iface_vif_index[MAXVIFS];
 162         int mcast_if_count;
 163
 164         struct rb_pim_oil_head channel_oil_head;
 165
 166         struct pim_msdp msdp;
 167         struct pim_vxlan_instance vxlan;
 168
 169         struct list *ssmpingd_list;
 170         pim_addr ssmpingd_group_addr;
 171
 172         unsigned int gm_socket_if_count;
 173         int gm_socket;
 174         struct thread *t_gm_recv;
 175
 176         unsigned int gm_group_count;
 177         unsigned int gm_watermark_limit;
 178         unsigned int keep_alive_time;
 179         unsigned int rp_keep_alive_time;
 180
 181         bool ecmp_enable;
 182         bool ecmp_rebalance_enable;
 183         /* No. of Dual active I/fs in pim_instance */
 184         uint32_t inst_mlag_intf_cnt;
 185
 186         /* Bsm related */
 187         struct bsm_scope global_scope;
 188         uint64_t bsm_rcvd;
 189         uint64_t bsm_sent;
 190         uint64_t bsm_dropped;
 191
 192         /* If we need to rescan all our upstreams */
 193         struct thread *rpf_cache_refresher;
 194         int64_t rpf_cache_refresh_requests;
 195         int64_t rpf_cache_refresh_events;
 196         int64_t rpf_cache_refresh_last;
 197         int64_t scan_oil_events;
 198         int64_t scan_oil_last;
 199
 200         int64_t nexthop_lookups;
 201         int64_t nexthop_lookups_avoided;
 202         int64_t last_route_change_time;
 203
 204         uint64_t gm_rx_drop_sys;
 205 };
 206
 207 void pim_vrf_init(void);
 208 void pim_vrf_terminate(void);
 209
 210 extern struct pim_router *router;
 211
 212 struct pim_instance *pim_get_pim_instance(vrf_id_t vrf_id);
 213
 214 #endif