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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" | |
30 | #include "static_vty.h" | |
31 | ||
32 | static void zebra_stable_node_cleanup(struct route_table *table, | |
33 | struct route_node *node) | |
34 | { | |
35 | struct static_route *si, *next; | |
36 | ||
37 | if (node->info) | |
38 | for (si = node->info; si; si = next) { | |
39 | next = si->next; | |
40 | XFREE(MTYPE_STATIC_ROUTE, si); | |
41 | } | |
42 | } | |
43 | ||
44 | static struct static_vrf *static_vrf_alloc(void) | |
45 | { | |
46 | struct route_table *table; | |
47 | struct static_vrf *svrf; | |
48 | safi_t safi; | |
49 | afi_t afi; | |
50 | ||
51 | svrf = XCALLOC(MTYPE_TMP, sizeof(struct static_vrf)); | |
52 | ||
53 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
54 | for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) { | |
55 | if (afi == AFI_IP6) | |
56 | table = srcdest_table_init(); | |
57 | else | |
58 | table = route_table_init(); | |
59 | table->cleanup = zebra_stable_node_cleanup; | |
60 | svrf->stable[afi][safi] = table; | |
61 | } | |
62 | } | |
63 | return svrf; | |
64 | } | |
65 | ||
66 | static int static_vrf_new(struct vrf *vrf) | |
67 | { | |
68 | struct static_vrf *svrf; | |
69 | ||
70 | svrf = static_vrf_alloc(); | |
71 | vrf->info = svrf; | |
72 | svrf->vrf = vrf; | |
73 | ||
74 | return 0; | |
75 | } | |
76 | ||
77 | static int static_vrf_enable(struct vrf *vrf) | |
78 | { | |
79 | static_fixup_vrf_ids(vrf->info); | |
80 | ||
81 | /* | |
82 | * We may have static routes that are now possible to | |
83 | * insert into the appropriate tables | |
84 | */ | |
85 | static_config_install_delayed_routes(vrf->info); | |
86 | ||
87 | return 0; | |
88 | } | |
89 | ||
90 | static int static_vrf_disable(struct vrf *vrf) | |
91 | { | |
92 | return 0; | |
93 | } | |
94 | ||
95 | static int static_vrf_delete(struct vrf *vrf) | |
96 | { | |
97 | struct route_table *table; | |
98 | struct static_vrf *svrf; | |
99 | safi_t safi; | |
100 | afi_t afi; | |
101 | ||
102 | svrf = vrf->info; | |
103 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
104 | for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) { | |
105 | table = svrf->stable[afi][safi]; | |
106 | route_table_finish(table); | |
107 | svrf->stable[afi][safi] = NULL; | |
108 | } | |
109 | } | |
110 | return 0; | |
111 | } | |
112 | ||
113 | /* Lookup the static routing table in a VRF. */ | |
114 | struct route_table *static_vrf_static_table(afi_t afi, safi_t safi, | |
115 | struct static_vrf *svrf) | |
116 | { | |
117 | if (!svrf) | |
118 | return NULL; | |
119 | ||
120 | if (afi >= AFI_MAX || safi >= SAFI_MAX) | |
121 | return NULL; | |
122 | ||
123 | return svrf->stable[afi][safi]; | |
124 | } | |
125 | ||
126 | struct static_vrf *static_vrf_lookup_by_id(vrf_id_t vrf_id) | |
127 | { | |
128 | struct vrf *vrf; | |
129 | ||
130 | vrf = vrf_lookup_by_id(vrf_id); | |
131 | if (vrf) | |
132 | return ((struct static_vrf *)vrf->info); | |
133 | ||
134 | return NULL; | |
135 | } | |
136 | ||
137 | struct static_vrf *static_vrf_lookup_by_name(const char *name) | |
138 | { | |
139 | struct vrf *vrf; | |
140 | ||
141 | if (!name) | |
142 | name = VRF_DEFAULT_NAME; | |
143 | ||
144 | vrf = vrf_lookup_by_name(name); | |
145 | if (vrf) | |
146 | return ((struct static_vrf *)vrf->info); | |
147 | ||
148 | return NULL; | |
149 | } | |
150 | ||
151 | static int static_vrf_config_write(struct vty *vty) | |
152 | { | |
153 | struct vrf *vrf; | |
154 | ||
155 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
0e20f68b DS |
156 | if (vrf->vrf_id != VRF_DEFAULT) |
157 | vty_frame(vty, "vrf %s\n", vrf->name); | |
158 | ||
7e24fdf3 DS |
159 | static_config(vty, vrf->info, AFI_IP, |
160 | SAFI_UNICAST, "ip route"); | |
161 | static_config(vty, vrf->info, AFI_IP, | |
162 | SAFI_MULTICAST, "ip mroute"); | |
163 | static_config(vty, vrf->info, AFI_IP6, | |
164 | SAFI_UNICAST, "ipv6 route"); | |
0e20f68b DS |
165 | |
166 | if (vrf->vrf_id != VRF_DEFAULT) | |
167 | vty_endframe(vty, "!\n"); | |
7e24fdf3 DS |
168 | } |
169 | ||
170 | return 0; | |
171 | } | |
172 | ||
173 | int static_vrf_has_config(struct static_vrf *svrf) | |
174 | { | |
175 | struct route_table *table; | |
176 | safi_t safi; | |
177 | afi_t afi; | |
178 | ||
179 | /* | |
180 | * NOTE: This is a don't care for the default VRF, but we go through | |
181 | * the motions to keep things consistent. | |
182 | */ | |
183 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
184 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
185 | table = svrf->stable[afi][safi]; | |
186 | if (!table) | |
187 | continue; | |
188 | if (route_table_count(table)) | |
189 | return 1; | |
190 | } | |
191 | } | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
196 | void static_vrf_init(void) | |
197 | { | |
198 | vrf_init(static_vrf_new, static_vrf_enable, | |
ecbc5a37 | 199 | static_vrf_disable, static_vrf_delete, NULL); |
7e24fdf3 DS |
200 | |
201 | vrf_cmd_init(static_vrf_config_write, &static_privs); | |
202 | } |