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89272910 DS |
1 | /* Zebra Router header. |
2 | * Copyright (C) 2018 Cumulus Networks, Inc. | |
3 | * Donald Sharp | |
4 | * | |
5 | * This file is part of FRR. | |
6 | * | |
7 | * FRR is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * FRR is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with FRR; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | #ifndef __ZEBRA_ROUTER_H__ | |
23 | #define __ZEBRA_ROUTER_H__ | |
24 | ||
e96ba9da DS |
25 | #include "lib/mlag.h" |
26 | ||
89272910 DS |
27 | #include "zebra/zebra_ns.h" |
28 | ||
51e94aa7 EDP |
29 | #ifdef __cplusplus |
30 | extern "C" { | |
31 | #endif | |
32 | ||
89272910 DS |
33 | /* |
34 | * This header file contains the idea of a router and as such | |
35 | * owns data that is associated with a router from zebra's | |
36 | * perspective. | |
37 | */ | |
38 | ||
39 | struct zebra_router_table { | |
40 | RB_ENTRY(zebra_router_table) zebra_router_table_entry; | |
41 | ||
42 | uint32_t tableid; | |
43 | afi_t afi; | |
44 | safi_t safi; | |
45 | ns_id_t ns_id; | |
46 | ||
47 | struct route_table *table; | |
48 | }; | |
49 | RB_HEAD(zebra_router_table_head, zebra_router_table); | |
50 | RB_PROTOTYPE(zebra_router_table_head, zebra_router_table, | |
51 | zebra_router_table_entry, zebra_router_table_entry_compare) | |
52 | ||
526052fb DS |
53 | /* RPF lookup behaviour */ |
54 | enum multicast_mode { | |
55 | MCAST_NO_CONFIG = 0, /* MIX_MRIB_FIRST, but no show in config write */ | |
56 | MCAST_MRIB_ONLY, /* MRIB only */ | |
57 | MCAST_URIB_ONLY, /* URIB only */ | |
58 | MCAST_MIX_MRIB_FIRST, /* MRIB, if nothing at all then URIB */ | |
59 | MCAST_MIX_DISTANCE, /* MRIB & URIB, lower distance wins */ | |
60 | MCAST_MIX_PFXLEN, /* MRIB & URIB, longer prefix wins */ | |
61 | /* on equal value, MRIB wins for last 2 */ | |
62 | }; | |
63 | ||
e96ba9da DS |
64 | struct zebra_mlag_info { |
65 | /* Role this zebra router is playing */ | |
66 | enum mlag_role role; | |
67 | ||
68 | /* The peerlink being used for mlag */ | |
69 | char *peerlink; | |
70 | ifindex_t peerlink_ifindex; | |
71 | ||
72 | /* The system mac being used */ | |
73 | struct ethaddr mac; | |
ee235396 SK |
74 | /* |
75 | * Zebra will open the communication channel with MLAGD only if any | |
76 | * clients are interested and it is controlled dynamically based on | |
77 | * client registers & un-registers. | |
78 | */ | |
79 | uint32_t clients_interested_cnt; | |
80 | ||
81 | /* coomunication channel with MLAGD is established */ | |
82 | bool connected; | |
83 | ||
84 | /* connection retry timer is running */ | |
85 | bool timer_running; | |
86 | ||
87 | /* Holds the client data(unencoded) that need to be pushed to MCLAGD*/ | |
88 | struct stream_fifo *mlag_fifo; | |
89 | ||
90 | /* | |
91 | * A new Kernel thread will be created to post the data to MCLAGD. | |
92 | * where as, read will be performed from the zebra main thread, because | |
93 | * read involves accessing client registartion data structures. | |
94 | */ | |
95 | struct frr_pthread *zebra_pth_mlag; | |
96 | ||
97 | /* MLAG Thread context 'master' */ | |
98 | struct thread_master *th_master; | |
99 | ||
21a93a5f SK |
100 | /* |
101 | * Event for Initial MLAG Connection setup & Data Read | |
102 | * Read can be performed only after successful connection establishment, | |
103 | * so no issues. | |
104 | * | |
105 | */ | |
ee235396 | 106 | struct thread *t_read; |
21a93a5f | 107 | /* Event for MLAG write */ |
ee235396 | 108 | struct thread *t_write; |
e96ba9da DS |
109 | }; |
110 | ||
89272910 | 111 | struct zebra_router { |
2fc69f03 MS |
112 | atomic_bool in_shutdown; |
113 | ||
3801e764 DS |
114 | /* Thread master */ |
115 | struct thread_master *master; | |
89272910 | 116 | |
161e9ab7 DS |
117 | /* Lists of clients who have connected to us */ |
118 | struct list *client_list; | |
119 | ||
8062cbe2 S |
120 | /* List of clients in GR */ |
121 | struct list *stale_client_list; | |
122 | ||
89272910 | 123 | struct zebra_router_table_head tables; |
7f0ea8a4 | 124 | |
89272910 DS |
125 | /* L3-VNI hash table (for EVPN). Only in default instance */ |
126 | struct hash *l3vni_table; | |
7f0ea8a4 | 127 | |
ce5160c0 AK |
128 | /* Tables and other global info maintained for EVPN multihoming */ |
129 | struct zebra_evpn_mh_info *mh_info; | |
130 | ||
131 | /* EVPN MH broadcast domains indexed by the VID */ | |
132 | struct hash *evpn_vlan_table; | |
133 | ||
7f0ea8a4 | 134 | struct hash *rules_hash; |
62f20a52 DS |
135 | |
136 | struct hash *ipset_hash; | |
137 | ||
138 | struct hash *ipset_entry_hash; | |
139 | ||
140 | struct hash *iptable_hash; | |
a3be9fa1 | 141 | |
9245fe61 PG |
142 | /* used if vrf backend is not network namespace */ |
143 | int rtadv_sock; | |
144 | ||
1485bbe7 DS |
145 | /* A sequence number used for tracking routes */ |
146 | _Atomic uint32_t sequence_num; | |
b3d43ff4 | 147 | |
489a9614 DS |
148 | /* rib work queue */ |
149 | #define ZEBRA_RIB_PROCESS_HOLD_TIME 10 | |
150 | #define ZEBRA_RIB_PROCESS_RETRY_TIME 1 | |
151 | struct work_queue *ribq; | |
ea45a4e7 DS |
152 | |
153 | /* Meta Queue Information */ | |
154 | struct meta_queue *mq; | |
e2353ec2 DS |
155 | |
156 | /* LSP work queue */ | |
157 | struct work_queue *lsp_process_q; | |
5ec5a716 DS |
158 | |
159 | #define ZEBRA_ZAPI_PACKETS_TO_PROCESS 1000 | |
160 | _Atomic uint32_t packets_to_process; | |
e96ba9da DS |
161 | |
162 | /* Mlag information for the router */ | |
163 | struct zebra_mlag_info mlag_info; | |
0fb2ad05 T |
164 | |
165 | /* | |
166 | * The EVPN instance, if any | |
167 | */ | |
168 | struct zebra_vrf *evpn_vrf; | |
b3f2b590 DS |
169 | |
170 | uint32_t multipath_num; | |
d4644d41 | 171 | |
526052fb DS |
172 | /* RPF Lookup behavior */ |
173 | enum multicast_mode ipv4_multicast_mode; | |
174 | ||
d4644d41 DS |
175 | /* |
176 | * Time for when we sweep the rib from old routes | |
177 | */ | |
178 | time_t startup_time; | |
69171da2 DS |
179 | |
180 | /* | |
181 | * The hash of nexthop groups associated with this router | |
182 | */ | |
183 | struct hash *nhgs; | |
a95b8020 | 184 | struct hash *nhgs_id; |
4c56ce1c DS |
185 | |
186 | /* | |
187 | * Does the underlying system provide an asic offload | |
188 | */ | |
189 | bool asic_offloaded; | |
89272910 DS |
190 | }; |
191 | ||
d4644d41 DS |
192 | #define GRACEFUL_RESTART_TIME 60 |
193 | ||
89272910 DS |
194 | extern struct zebra_router zrouter; |
195 | ||
196 | extern void zebra_router_init(void); | |
3e0372d2 | 197 | extern void zebra_router_cleanup(void); |
89272910 DS |
198 | extern void zebra_router_terminate(void); |
199 | ||
9d86e091 CS |
200 | extern struct zebra_router_table *zebra_router_find_zrt(struct zebra_vrf *zvrf, |
201 | uint32_t tableid, | |
202 | afi_t afi, safi_t safi); | |
89272910 DS |
203 | extern struct route_table *zebra_router_find_table(struct zebra_vrf *zvrf, |
204 | uint32_t tableid, afi_t afi, | |
205 | safi_t safi); | |
206 | extern struct route_table *zebra_router_get_table(struct zebra_vrf *zvrf, | |
207 | uint32_t tableid, afi_t afi, | |
208 | safi_t safi); | |
bd4fb615 DS |
209 | extern void zebra_router_release_table(struct zebra_vrf *zvrf, uint32_t tableid, |
210 | afi_t afi, safi_t safi); | |
89272910 DS |
211 | |
212 | extern int zebra_router_config_write(struct vty *vty); | |
213 | ||
89272910 | 214 | extern void zebra_router_sweep_route(void); |
38e40db1 | 215 | extern void zebra_router_sweep_nhgs(void); |
ac5aa23f DS |
216 | |
217 | extern void zebra_router_show_table_summary(struct vty *vty); | |
1485bbe7 DS |
218 | |
219 | extern uint32_t zebra_router_get_next_sequence(void); | |
0fb2ad05 T |
220 | |
221 | static inline vrf_id_t zebra_vrf_get_evpn_id(void) | |
222 | { | |
223 | return zrouter.evpn_vrf ? zvrf_id(zrouter.evpn_vrf) : VRF_DEFAULT; | |
224 | } | |
225 | static inline struct zebra_vrf *zebra_vrf_get_evpn(void) | |
226 | { | |
227 | return zrouter.evpn_vrf ? zrouter.evpn_vrf | |
228 | : zebra_vrf_lookup_by_id(VRF_DEFAULT); | |
229 | } | |
d074383c | 230 | |
526052fb DS |
231 | extern void multicast_mode_ipv4_set(enum multicast_mode mode); |
232 | ||
233 | extern enum multicast_mode multicast_mode_ipv4_get(void); | |
234 | ||
b87fa24d RZ |
235 | /* zebra_northbound.c */ |
236 | extern const struct frr_yang_module_info frr_zebra_info; | |
237 | ||
51e94aa7 EDP |
238 | #ifdef __cplusplus |
239 | } | |
240 | #endif | |
241 | ||
89272910 | 242 | #endif |