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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 | ||
26 | struct pbr_nexthop_group_cache { | |
27 | char name[PBR_MAP_NAMELEN]; | |
28 | ||
29 | uint32_t table_id; | |
30 | ||
31 | struct hash *nhh; | |
32 | ||
33 | /* | |
34 | * If all nexthops are considered valid | |
35 | */ | |
36 | bool valid; | |
37 | ||
38 | bool installed; | |
39 | }; | |
40 | ||
41 | struct pbr_nexthop_cache { | |
42 | struct pbr_nexthop_group_cache *parent; | |
43 | ||
44 | struct nexthop nexthop; | |
45 | ||
46 | bool valid; | |
47 | }; | |
48 | ||
49 | extern void pbr_nht_write_table_range(struct vty *vty); | |
50 | #define PBR_NHT_DEFAULT_LOW_TABLEID 10000 | |
51 | #define PBR_NHT_DEFAULT_HIGH_TABLEID 11000 | |
52 | extern void pbr_nht_set_tableid_range(uint32_t low, uint32_t high); | |
53 | ||
54 | /* | |
55 | * Get the next tableid to use for installation | |
56 | */ | |
57 | extern uint32_t pbr_nht_get_next_tableid(void); | |
58 | /* | |
59 | * Get the next rule number to use for installation | |
60 | */ | |
61 | extern void pbr_nht_write_rule_range(struct vty *vty); | |
62 | ||
63 | #define PBR_NHT_DEFAULT_LOW_RULE 300 | |
64 | #define PBR_NHT_DEFAULT_HIGH_RULE 1300 | |
65 | extern void pbr_nht_set_rule_range(uint32_t low, uint32_t high); | |
66 | ||
67 | extern uint32_t pbr_nht_get_next_rule(uint32_t seqno); | |
68 | ||
69 | extern void pbr_nhgroup_add_cb(const char *name); | |
70 | extern void pbr_nhgroup_add_nexthop_cb(const struct nexthop_group_cmd *nhg, | |
71 | const struct nexthop *nhop); | |
72 | extern void pbr_nhgroup_del_nexthop_cb(const struct nexthop_group_cmd *nhg, | |
73 | const struct nexthop *nhop); | |
74 | extern void pbr_nhgroup_delete_cb(const char *name); | |
75 | ||
76 | extern bool pbr_nht_nexthop_valid(struct nexthop_group *nhg); | |
77 | extern bool pbr_nht_nexthop_group_valid(const char *name); | |
78 | ||
79 | extern void pbr_nht_add_group(const char *name); | |
80 | extern void pbr_nht_change_group(const char *name); | |
81 | extern void pbr_nht_delete_group(const char *name); | |
82 | ||
83 | extern void pbr_nht_add_individual_nexthop(const char *name, uint32_t seqno); | |
84 | extern void pbr_nht_delete_individual_nexthop(const char *name, uint32_t seqno); | |
85 | /* | |
86 | * Given the tableid of the installed default | |
87 | * route, find the nexthop-group associated with | |
88 | * it, then find all pbr-maps that use it and | |
89 | * install/delete them as well. | |
90 | */ | |
91 | extern void pbr_nht_route_installed_for_table(uint32_t table_id); | |
92 | extern void pbr_nht_route_removed_for_table(uint32_t table_id); | |
93 | ||
94 | /* | |
95 | * Given the nexthop group name, lookup the associated | |
96 | * tableid with it | |
97 | */ | |
98 | extern uint32_t pbr_nht_get_table(const char *name); | |
99 | ||
100 | extern bool pbr_nht_get_installed(const char *name); | |
101 | ||
102 | extern char *pbr_nht_nexthop_make_name(char *name, size_t l, uint32_t seqno, | |
103 | char *buffer); | |
104 | ||
105 | extern void pbr_nht_show_nexthop_group(struct vty *vty, const char *name); | |
106 | ||
107 | /* | |
108 | * When we get a callback from zebra about a nexthop changing | |
109 | */ | |
110 | extern void pbr_nht_nexthop_update(struct zapi_route *nhr); | |
111 | ||
112 | extern void pbr_nht_init(void); | |
113 | #endif |