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1 | /* |
2 | * PIM for FRR - PIM Instance | |
3 | * Copyright (C) 2017 Cumulus Networks, Inc. | |
4 | * Donald Sharp | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program 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 | |
17 | * along with this program; see the file COPYING; if not, write to the | |
18 | * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, | |
19 | * MA 02110-1301 USA | |
20 | */ | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "hash.h" | |
24 | #include "vrf.h" | |
25 | ||
26 | #include "pimd.h" | |
27 | #include "pim_ssm.h" | |
28 | #include "pim_rpf.h" | |
29 | #include "pim_rp.h" | |
30 | #include "pim_mroute.h" | |
4e0bc0f0 DS |
31 | #include "pim_oil.h" |
32 | #include "pim_static.h" | |
c2cf4b02 DS |
33 | |
34 | static void pim_instance_terminate(struct pim_instance *pim) | |
35 | { | |
36 | /* Traverse and cleanup rpf_hash */ | |
37 | if (pim->rpf_hash) { | |
38 | hash_clean(pim->rpf_hash, (void *)pim_rp_list_hash_clean); | |
39 | hash_free(pim->rpf_hash); | |
40 | pim->rpf_hash = NULL; | |
41 | } | |
42 | ||
43 | if (pim->ssm_info) { | |
44 | pim_ssm_terminate(pim->ssm_info); | |
45 | pim->ssm_info = NULL; | |
46 | } | |
47 | ||
4e0bc0f0 DS |
48 | if (pim->static_routes) |
49 | list_free(pim->static_routes); | |
50 | ||
9b29ea95 DS |
51 | pim_upstream_terminate(pim); |
52 | ||
c2cf4b02 DS |
53 | XFREE(MTYPE_PIM_PIM_INSTANCE, pimg); |
54 | } | |
55 | ||
56 | static struct pim_instance *pim_instance_init(struct vrf *vrf) | |
57 | { | |
58 | struct pim_instance *pim; | |
59 | ||
60 | pim = XCALLOC(MTYPE_PIM_PIM_INSTANCE, sizeof(struct pim_instance)); | |
61 | if (!pim) | |
62 | return NULL; | |
63 | ||
64 | pim->vrf_id = vrf->vrf_id; | |
65 | pim->vrf = vrf; | |
66 | ||
67 | pim->spt.switchover = PIM_SPT_IMMEDIATE; | |
68 | pim->spt.plist = NULL; | |
69 | ||
70 | pim->rpf_hash = | |
71 | hash_create_size(256, pim_rpf_hash_key, pim_rpf_equal, NULL); | |
72 | ||
73 | if (PIM_DEBUG_ZEBRA) | |
74 | zlog_debug("%s: NHT rpf hash init ", __PRETTY_FUNCTION__); | |
75 | ||
76 | pim->ssm_info = pim_ssm_init(); | |
77 | if (!pim->ssm_info) { | |
78 | pim_instance_terminate(pim); | |
79 | return NULL; | |
80 | } | |
81 | ||
4e0bc0f0 DS |
82 | pim->static_routes = list_new(); |
83 | if (!pim->static_routes) { | |
84 | zlog_err("%s %s: failure: static_routes=list_new()", __FILE__, | |
85 | __PRETTY_FUNCTION__); | |
86 | pim_instance_terminate(pim); | |
87 | return NULL; | |
88 | } | |
89 | pim->static_routes->del = (void (*)(void *))pim_static_route_free; | |
90 | ||
c2cf4b02 DS |
91 | pim->send_v6_secondary = 1; |
92 | ||
93 | if (vrf->vrf_id == VRF_DEFAULT) | |
94 | pimg = pim; | |
95 | ||
96 | pim_mroute_socket_enable(pim); | |
97 | ||
9b29ea95 | 98 | pim_upstream_init(pim); |
c2cf4b02 DS |
99 | return pim; |
100 | } | |
101 | ||
102 | struct pim_instance *pim_get_pim_instance(vrf_id_t vrf_id) | |
103 | { | |
104 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
105 | ||
106 | if (vrf) | |
107 | return vrf->info; | |
108 | ||
109 | return NULL; | |
110 | } | |
111 | ||
112 | static int pim_vrf_new(struct vrf *vrf) | |
113 | { | |
114 | zlog_debug("VRF Created: %s(%d)", vrf->name, vrf->vrf_id); | |
115 | return 0; | |
116 | } | |
117 | ||
118 | static int pim_vrf_delete(struct vrf *vrf) | |
119 | { | |
120 | zlog_debug("VRF Deletion: %s(%d)", vrf->name, vrf->vrf_id); | |
121 | return 0; | |
122 | } | |
123 | ||
124 | static int pim_vrf_enable(struct vrf *vrf) | |
125 | { | |
126 | struct pim_instance *pim; | |
127 | ||
128 | zlog_debug("%s: for %s", __PRETTY_FUNCTION__, vrf->name); | |
129 | pim = pim_instance_init(vrf); | |
130 | if (pim == NULL) { | |
131 | zlog_err("%s %s: pim class init failure ", __FILE__, | |
132 | __PRETTY_FUNCTION__); | |
133 | /* | |
134 | * We will crash and burn otherwise | |
135 | */ | |
136 | exit(1); | |
137 | } | |
138 | ||
139 | vrf->info = (void *)pim; | |
140 | ||
141 | if (vrf->vrf_id == VRF_DEFAULT) | |
142 | pimg = pim; | |
143 | ||
144 | return 0; | |
145 | } | |
146 | ||
147 | static int pim_vrf_disable(struct vrf *vrf) | |
148 | { | |
149 | pim_instance_terminate((struct pim_instance *)vrf->info); | |
150 | ||
151 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
152 | return 0; | |
153 | } | |
154 | ||
155 | void pim_vrf_init(void) | |
156 | { | |
157 | vrf_init(pim_vrf_new, pim_vrf_enable, pim_vrf_disable, pim_vrf_delete); | |
158 | } | |
159 | ||
160 | void pim_vrf_terminate(void) | |
161 | { | |
162 | vrf_terminate(); | |
163 | } |