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Commit | Line | Data |
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7e24fdf3 DS |
1 | /* |
2 | * STATICd - vrf code | |
3 | * Copyright (C) 2018 Cumulus Networks, Inc. | |
4 | * Donald Sharp | |
5 | * | |
8d5cbee9 DS |
6 | * This program 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 Free | |
8 | * Software Foundation; either version 2 of the License, or (at your option) | |
9 | * any later version. | |
7e24fdf3 | 10 | * |
8d5cbee9 DS |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
7e24fdf3 DS |
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 | #include <zebra.h> | |
21 | ||
22 | #include "vrf.h" | |
23 | #include "nexthop.h" | |
24 | #include "table.h" | |
25 | #include "srcdest_table.h" | |
26 | ||
27 | #include "static_memory.h" | |
28 | #include "static_vrf.h" | |
29 | #include "static_routes.h" | |
fceb6174 | 30 | #include "static_zebra.h" |
7e24fdf3 DS |
31 | #include "static_vty.h" |
32 | ||
33 | static void zebra_stable_node_cleanup(struct route_table *table, | |
34 | struct route_node *node) | |
35 | { | |
36 | struct static_route *si, *next; | |
37 | ||
38 | if (node->info) | |
39 | for (si = node->info; si; si = next) { | |
40 | next = si->next; | |
41 | XFREE(MTYPE_STATIC_ROUTE, si); | |
42 | } | |
43 | } | |
44 | ||
45 | static struct static_vrf *static_vrf_alloc(void) | |
46 | { | |
47 | struct route_table *table; | |
48 | struct static_vrf *svrf; | |
49 | safi_t safi; | |
50 | afi_t afi; | |
51 | ||
52 | svrf = XCALLOC(MTYPE_TMP, sizeof(struct static_vrf)); | |
53 | ||
54 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
55 | for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) { | |
56 | if (afi == AFI_IP6) | |
57 | table = srcdest_table_init(); | |
58 | else | |
59 | table = route_table_init(); | |
60 | table->cleanup = zebra_stable_node_cleanup; | |
61 | svrf->stable[afi][safi] = table; | |
62 | } | |
63 | } | |
64 | return svrf; | |
65 | } | |
66 | ||
67 | static int static_vrf_new(struct vrf *vrf) | |
68 | { | |
69 | struct static_vrf *svrf; | |
70 | ||
71 | svrf = static_vrf_alloc(); | |
72 | vrf->info = svrf; | |
73 | svrf->vrf = vrf; | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
78 | static int static_vrf_enable(struct vrf *vrf) | |
79 | { | |
fceb6174 PG |
80 | static_zebra_vrf_register(vrf); |
81 | ||
7e24fdf3 DS |
82 | static_fixup_vrf_ids(vrf->info); |
83 | ||
84 | /* | |
85 | * We may have static routes that are now possible to | |
86 | * insert into the appropriate tables | |
87 | */ | |
88 | static_config_install_delayed_routes(vrf->info); | |
89 | ||
90 | return 0; | |
91 | } | |
92 | ||
93 | static int static_vrf_disable(struct vrf *vrf) | |
94 | { | |
fceb6174 | 95 | static_zebra_vrf_unregister(vrf); |
7e24fdf3 DS |
96 | return 0; |
97 | } | |
98 | ||
99 | static int static_vrf_delete(struct vrf *vrf) | |
100 | { | |
101 | struct route_table *table; | |
102 | struct static_vrf *svrf; | |
103 | safi_t safi; | |
104 | afi_t afi; | |
105 | ||
106 | svrf = vrf->info; | |
107 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
108 | for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) { | |
109 | table = svrf->stable[afi][safi]; | |
110 | route_table_finish(table); | |
111 | svrf->stable[afi][safi] = NULL; | |
112 | } | |
113 | } | |
114 | return 0; | |
115 | } | |
116 | ||
117 | /* Lookup the static routing table in a VRF. */ | |
118 | struct route_table *static_vrf_static_table(afi_t afi, safi_t safi, | |
119 | struct static_vrf *svrf) | |
120 | { | |
121 | if (!svrf) | |
122 | return NULL; | |
123 | ||
124 | if (afi >= AFI_MAX || safi >= SAFI_MAX) | |
125 | return NULL; | |
126 | ||
127 | return svrf->stable[afi][safi]; | |
128 | } | |
129 | ||
130 | struct static_vrf *static_vrf_lookup_by_id(vrf_id_t vrf_id) | |
131 | { | |
132 | struct vrf *vrf; | |
133 | ||
134 | vrf = vrf_lookup_by_id(vrf_id); | |
135 | if (vrf) | |
136 | return ((struct static_vrf *)vrf->info); | |
137 | ||
138 | return NULL; | |
139 | } | |
140 | ||
141 | struct static_vrf *static_vrf_lookup_by_name(const char *name) | |
142 | { | |
143 | struct vrf *vrf; | |
144 | ||
145 | if (!name) | |
146 | name = VRF_DEFAULT_NAME; | |
147 | ||
148 | vrf = vrf_lookup_by_name(name); | |
149 | if (vrf) | |
150 | return ((struct static_vrf *)vrf->info); | |
151 | ||
152 | return NULL; | |
153 | } | |
154 | ||
155 | static int static_vrf_config_write(struct vty *vty) | |
156 | { | |
157 | struct vrf *vrf; | |
158 | ||
159 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
0e20f68b DS |
160 | if (vrf->vrf_id != VRF_DEFAULT) |
161 | vty_frame(vty, "vrf %s\n", vrf->name); | |
162 | ||
7e24fdf3 DS |
163 | static_config(vty, vrf->info, AFI_IP, |
164 | SAFI_UNICAST, "ip route"); | |
165 | static_config(vty, vrf->info, AFI_IP, | |
166 | SAFI_MULTICAST, "ip mroute"); | |
167 | static_config(vty, vrf->info, AFI_IP6, | |
168 | SAFI_UNICAST, "ipv6 route"); | |
0e20f68b DS |
169 | |
170 | if (vrf->vrf_id != VRF_DEFAULT) | |
e8be380a | 171 | vty_endframe(vty, " exit-vrf\n!\n"); |
7e24fdf3 DS |
172 | } |
173 | ||
174 | return 0; | |
175 | } | |
176 | ||
177 | int static_vrf_has_config(struct static_vrf *svrf) | |
178 | { | |
179 | struct route_table *table; | |
180 | safi_t safi; | |
181 | afi_t afi; | |
182 | ||
183 | /* | |
184 | * NOTE: This is a don't care for the default VRF, but we go through | |
185 | * the motions to keep things consistent. | |
186 | */ | |
187 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
188 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
189 | table = svrf->stable[afi][safi]; | |
190 | if (!table) | |
191 | continue; | |
192 | if (route_table_count(table)) | |
193 | return 1; | |
194 | } | |
195 | } | |
196 | ||
197 | return 0; | |
198 | } | |
199 | ||
200 | void static_vrf_init(void) | |
201 | { | |
202 | vrf_init(static_vrf_new, static_vrf_enable, | |
ecbc5a37 | 203 | static_vrf_disable, static_vrf_delete, NULL); |
7e24fdf3 DS |
204 | |
205 | vrf_cmd_init(static_vrf_config_write, &static_privs); | |
206 | } |