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e5c83d9b DS |
1 | /* |
2 | * PBR-nht Header | |
3 | * Copyright (C) 2018 Cumulus Networks, Inc. | |
4 | * Donald Sharp | |
5 | * | |
6 | * FRR is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * FRR 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 along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | #ifndef __PBR_NHT_H__ | |
21 | #define __PBR_NHT_H__ | |
22 | ||
23 | #include <lib/zclient.h> | |
24 | #include <lib/nexthop_group.h> | |
25 | ||
b13e5ad6 DS |
26 | #include "pbr_map.h" |
27 | ||
06210d1f DS |
28 | #define PBR_NHC_NAMELEN PBR_MAP_NAMELEN + 10 |
29 | ||
e5c83d9b | 30 | struct pbr_nexthop_group_cache { |
06210d1f | 31 | char name[PBR_NHC_NAMELEN]; |
e5c83d9b DS |
32 | |
33 | uint32_t table_id; | |
34 | ||
35 | struct hash *nhh; | |
36 | ||
37 | /* | |
38 | * If all nexthops are considered valid | |
39 | */ | |
40 | bool valid; | |
41 | ||
42 | bool installed; | |
43 | }; | |
44 | ||
45 | struct pbr_nexthop_cache { | |
46 | struct pbr_nexthop_group_cache *parent; | |
47 | ||
b13e5ad6 | 48 | struct nexthop *nexthop; |
e5c83d9b DS |
49 | |
50 | bool valid; | |
51 | }; | |
52 | ||
53 | extern void pbr_nht_write_table_range(struct vty *vty); | |
54 | #define PBR_NHT_DEFAULT_LOW_TABLEID 10000 | |
55 | #define PBR_NHT_DEFAULT_HIGH_TABLEID 11000 | |
56 | extern void pbr_nht_set_tableid_range(uint32_t low, uint32_t high); | |
57 | ||
58 | /* | |
a4044dc1 QY |
59 | * Get the next tableid to use for installation. |
60 | * | |
61 | * peek | |
62 | * If set to true, retrieves the next ID without marking it used. The next | |
63 | * call will return the same ID. | |
e5c83d9b | 64 | */ |
a4044dc1 | 65 | extern uint32_t pbr_nht_get_next_tableid(bool peek); |
e5c83d9b DS |
66 | /* |
67 | * Get the next rule number to use for installation | |
68 | */ | |
69 | extern void pbr_nht_write_rule_range(struct vty *vty); | |
70 | ||
71 | #define PBR_NHT_DEFAULT_LOW_RULE 300 | |
72 | #define PBR_NHT_DEFAULT_HIGH_RULE 1300 | |
73 | extern void pbr_nht_set_rule_range(uint32_t low, uint32_t high); | |
74 | ||
75 | extern uint32_t pbr_nht_get_next_rule(uint32_t seqno); | |
76 | ||
77 | extern void pbr_nhgroup_add_cb(const char *name); | |
78 | extern void pbr_nhgroup_add_nexthop_cb(const struct nexthop_group_cmd *nhg, | |
79 | const struct nexthop *nhop); | |
80 | extern void pbr_nhgroup_del_nexthop_cb(const struct nexthop_group_cmd *nhg, | |
81 | const struct nexthop *nhop); | |
82 | extern void pbr_nhgroup_delete_cb(const char *name); | |
83 | ||
84 | extern bool pbr_nht_nexthop_valid(struct nexthop_group *nhg); | |
85 | extern bool pbr_nht_nexthop_group_valid(const char *name); | |
86 | ||
b13e5ad6 | 87 | extern struct pbr_nexthop_group_cache *pbr_nht_add_group(const char *name); |
e5c83d9b DS |
88 | extern void pbr_nht_change_group(const char *name); |
89 | extern void pbr_nht_delete_group(const char *name); | |
90 | ||
f143cffa SW |
91 | extern void pbr_nht_add_individual_nexthop(struct pbr_map_sequence *pbrms, |
92 | const struct nexthop *nhop); | |
b13e5ad6 | 93 | extern void pbr_nht_delete_individual_nexthop(struct pbr_map_sequence *pbrms); |
e5c83d9b DS |
94 | /* |
95 | * Given the tableid of the installed default | |
96 | * route, find the nexthop-group associated with | |
97 | * it, then find all pbr-maps that use it and | |
98 | * install/delete them as well. | |
99 | */ | |
100 | extern void pbr_nht_route_installed_for_table(uint32_t table_id); | |
101 | extern void pbr_nht_route_removed_for_table(uint32_t table_id); | |
102 | ||
103 | /* | |
104 | * Given the nexthop group name, lookup the associated | |
105 | * tableid with it | |
106 | */ | |
107 | extern uint32_t pbr_nht_get_table(const char *name); | |
108 | ||
109 | extern bool pbr_nht_get_installed(const char *name); | |
110 | ||
111 | extern char *pbr_nht_nexthop_make_name(char *name, size_t l, uint32_t seqno, | |
112 | char *buffer); | |
113 | ||
114 | extern void pbr_nht_show_nexthop_group(struct vty *vty, const char *name); | |
115 | ||
116 | /* | |
117 | * When we get a callback from zebra about a nexthop changing | |
118 | */ | |
119 | extern void pbr_nht_nexthop_update(struct zapi_route *nhr); | |
120 | ||
a106a408 RW |
121 | /* |
122 | * When we get a callback from zebra about an interface status update. | |
123 | */ | |
124 | extern void pbr_nht_nexthop_interface_update(struct interface *ifp); | |
125 | ||
e5c83d9b DS |
126 | extern void pbr_nht_init(void); |
127 | #endif |