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git.proxmox.com Git - mirror_frr.git/blob - pbrd/pbr_nht.h
3 * Copyright (C) 2018 Cumulus Networks, Inc.
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
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.
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
23 #include <lib/zclient.h>
24 #include <lib/nexthop_group.h>
29 #define PBR_NHC_NAMELEN PBR_MAP_NAMELEN + 10
31 extern struct hash
*pbr_nhg_hash
;
33 struct pbr_nexthop_group_cache
{
34 char name
[PBR_NHC_NAMELEN
];
41 * If all nexthops are considered valid
48 struct pbr_nexthop_cache
{
49 struct pbr_nexthop_group_cache
*parent
;
51 char vrf_name
[VRF_NAMSIZ
+ 1];
52 char intf_name
[INTERFACE_NAMSIZ
+ 1];
54 struct nexthop nexthop
;
61 extern void pbr_nht_write_table_range(struct vty
*vty
);
62 #define PBR_NHT_DEFAULT_LOW_TABLEID 10000
63 #define PBR_NHT_DEFAULT_HIGH_TABLEID 11000
64 extern void pbr_nht_set_tableid_range(uint32_t low
, uint32_t high
);
67 * Find and reserve the next available table for installation;
68 * Sequential calls to this function will reserve sequential table numbers
69 * until the configured range is exhausted; calls made after exhaustion always
73 pbr_nht_reserve_next_table_id(struct pbr_nexthop_group_cache
*nhgc
);
75 * Get the next tableid to use for installation to kernel
77 extern uint32_t pbr_nht_find_next_unallocated_table_id(void);
79 * Calculate where the next table representing a nhg will go in kernel
81 extern void pbr_nht_update_next_unallocated_table_id(void);
83 * Indicate if there are free spots to install a table to kernel within the
84 * configured PBR table range
86 extern bool pbr_nht_has_unallocated_table(void);
88 * Get the next rule number to use for installation
90 extern void pbr_nht_write_rule_range(struct vty
*vty
);
92 #define PBR_NHT_DEFAULT_LOW_RULE 300
93 #define PBR_NHT_DEFAULT_HIGH_RULE 1300
94 extern void pbr_nht_set_rule_range(uint32_t low
, uint32_t high
);
96 extern uint32_t pbr_nht_get_next_rule(uint32_t seqno
);
98 extern void pbr_nhgroup_add_cb(const char *name
);
99 extern void pbr_nhgroup_add_nexthop_cb(const struct nexthop_group_cmd
*nhg
,
100 const struct nexthop
*nhop
);
101 extern void pbr_nhgroup_del_nexthop_cb(const struct nexthop_group_cmd
*nhg
,
102 const struct nexthop
*nhop
);
103 extern void pbr_nhgroup_delete_cb(const char *name
);
105 extern bool pbr_nht_nexthop_valid(struct nexthop_group
*nhg
);
106 extern bool pbr_nht_nexthop_group_valid(const char *name
);
108 extern struct pbr_nexthop_group_cache
*pbr_nht_add_group(const char *name
);
109 extern void pbr_nht_change_group(const char *name
);
110 extern void pbr_nht_delete_group(const char *name
);
112 extern void pbr_nht_add_individual_nexthop(struct pbr_map_sequence
*pbrms
,
113 const struct nexthop
*nhop
);
114 extern void pbr_nht_delete_individual_nexthop(struct pbr_map_sequence
*pbrms
);
116 * Given the tableid of the installed default
117 * route, find the nexthop-group associated with
118 * it, then find all pbr-maps that use it and
119 * install/delete them as well.
121 extern void pbr_nht_route_installed_for_table(uint32_t table_id
);
122 extern void pbr_nht_route_removed_for_table(uint32_t table_id
);
125 * Given the nexthop group name, lookup the associated
128 extern uint32_t pbr_nht_get_table(const char *name
);
130 extern bool pbr_nht_get_installed(const char *name
);
132 extern char *pbr_nht_nexthop_make_name(char *name
, size_t l
, uint32_t seqno
,
135 extern void pbr_nht_show_nexthop_group(struct vty
*vty
, const char *name
);
136 extern void pbr_nht_json_nexthop_group(json_object
*j
, const char *name
);
139 * When we get a callback from zebra about a nexthop changing
141 extern void pbr_nht_nexthop_update(struct zapi_route
*nhr
);
144 * When we get a callback from zebra about an interface status update.
146 extern void pbr_nht_nexthop_interface_update(struct interface
*ifp
);
148 extern void pbr_nht_init(void);
150 extern void pbr_nht_vrf_update(struct pbr_vrf
*pbr_vrf
);
151 extern void pbr_nht_interface_update(struct interface
*ifp
);