1 /*
2 * PIM for Quagga
3 * Copyright (C) 2008 Everton da Silva Marques
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; see the file COPYING; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 #include <zebra.h>
21
22 #include "log.h"
23 #include "memory.h"
24 #include "if.h"
25 #include "prefix.h"
26 #include "vty.h"
27 #include "plist.h"
28 #include "hash.h"
29 #include "jhash.h"
30 #include "vrf.h"
31 #include "lib_errors.h"
32
33 #include "pimd.h"
34 #include "pim_cmd.h"
35 #include "pim_str.h"
36 #include "pim_oil.h"
37 #include "pim_pim.h"
38 #include "pim_ssmpingd.h"
39 #include "pim_static.h"
40 #include "pim_rp.h"
41 #include "pim_ssm.h"
42 #include "pim_vxlan.h"
43 #include "pim_zlookup.h"
44 #include "pim_zebra.h"
45 #include "pim_mlag.h"
46
47 #if MAXVIFS > 256
48 CPP_NOTICE("Work needs to be done to make this work properly via the pim mroute socket\n");
49 #endif /* MAXVIFS > 256 */
50
51 const char *const PIM_ALL_SYSTEMS = MCAST_ALL_SYSTEMS;
52 const char *const PIM_ALL_ROUTERS = MCAST_ALL_ROUTERS;
53 const char *const PIM_ALL_PIM_ROUTERS = MCAST_ALL_PIM_ROUTERS;
54 const char *const PIM_ALL_IGMP_ROUTERS = MCAST_ALL_IGMP_ROUTERS;
55
56 DEFINE_MTYPE_STATIC(PIMD, ROUTER, "PIM Router information");
57
58 struct pim_router *router = NULL;
59 struct in_addr qpim_all_pim_routers_addr;
60
pim_prefix_list_update(struct prefix_list * plist)61 void pim_prefix_list_update(struct prefix_list *plist)
62 {
63 struct pim_instance *pim;
64 struct vrf *vrf;
65
66 RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
67 pim = vrf->info;
68 if (!pim)
69 continue;
70
71 pim_rp_prefix_list_update(pim, plist);
72 pim_ssm_prefix_list_update(pim, plist);
73 pim_upstream_spt_prefix_list_update(pim, plist);
74 }
75 }
76
pim_free(void)77 static void pim_free(void)
78 {
79 pim_route_map_terminate();
80
81 zclient_lookup_free();
82 }
83
pim_router_init(void)84 void pim_router_init(void)
85 {
86 router = XCALLOC(MTYPE_ROUTER, sizeof(*router));
87
88 router->debugs = 0;
89 router->master = frr_init();
90 router->t_periodic = PIM_DEFAULT_T_PERIODIC;
91
92 /*
93 RFC 4601: 4.6.3. Assert Metrics
94
95 assert_metric
96 infinite_assert_metric() {
97 return {1,infinity,infinity,0}
98 }
99 */
100 router->infinite_assert_metric.rpt_bit_flag = 1;
101 router->infinite_assert_metric.metric_preference =
102 PIM_ASSERT_METRIC_PREFERENCE_MAX;
103 router->infinite_assert_metric.route_metric =
104 PIM_ASSERT_ROUTE_METRIC_MAX;
105 router->infinite_assert_metric.ip_address.s_addr = INADDR_ANY;
106 router->rpf_cache_refresh_delay_msec = 50;
107 router->register_suppress_time = PIM_REGISTER_SUPPRESSION_TIME_DEFAULT;
108 router->packet_process = PIM_DEFAULT_PACKET_PROCESS;
109 router->register_probe_time = PIM_REGISTER_PROBE_TIME_DEFAULT;
110 router->vrf_id = VRF_DEFAULT;
111 router->pim_mlag_intf_cnt = 0;
112 router->connected_to_mlag = false;
113 }
114
pim_router_terminate(void)115 void pim_router_terminate(void)
116 {
117 pim_mlag_terminate();
118 XFREE(MTYPE_ROUTER, router);
119 }
120
pim_init(void)121 void pim_init(void)
122 {
123 if (!inet_aton(PIM_ALL_PIM_ROUTERS, &qpim_all_pim_routers_addr)) {
124 flog_err(
125 EC_LIB_SOCKET,
126 "%s %s: could not solve %s to group address: errno=%d: %s",
127 __FILE__, __func__, PIM_ALL_PIM_ROUTERS, errno,
128 safe_strerror(errno));
129 zassert(0);
130 return;
131 }
132
133 pim_cmd_init();
134 }
135
pim_terminate(void)136 void pim_terminate(void)
137 {
138 struct zclient *zclient;
139
140 /* reverse prefix_list_init */
141 prefix_list_add_hook(NULL);
142 prefix_list_delete_hook(NULL);
143 prefix_list_reset();
144
145 pim_vxlan_terminate();
146 pim_vrf_terminate();
147
148 zclient = pim_zebra_zclient_get();
149 if (zclient) {
150 zclient_stop(zclient);
151 zclient_free(zclient);
152 }
153
154 pim_free();
155 pim_router_terminate();
156
157 frr_fini();
158 }
159