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1 | // SPDX-License-Identifier: GPL-2.0-or-later | |
2 | /* | |
3 | * PIM for Quagga | |
4 | * Copyright (C) 2008 Everton da Silva Marques | |
5 | */ | |
6 | ||
7 | #include <zebra.h> | |
8 | ||
9 | #include "log.h" | |
10 | #include "memory.h" | |
11 | #include "if.h" | |
12 | #include "prefix.h" | |
13 | #include "vty.h" | |
14 | #include "plist.h" | |
15 | #include "hash.h" | |
16 | #include "jhash.h" | |
17 | #include "vrf.h" | |
18 | #include "lib_errors.h" | |
19 | #include "bfd.h" | |
20 | ||
21 | #include "pimd.h" | |
22 | #if PIM_IPV == 4 | |
23 | #include "pim_cmd.h" | |
24 | #else | |
25 | #include "pim6_cmd.h" | |
26 | #endif | |
27 | #include "pim_str.h" | |
28 | #include "pim_oil.h" | |
29 | #include "pim_pim.h" | |
30 | #include "pim_ssmpingd.h" | |
31 | #include "pim_static.h" | |
32 | #include "pim_rp.h" | |
33 | #include "pim_ssm.h" | |
34 | #include "pim_vxlan.h" | |
35 | #include "pim_zlookup.h" | |
36 | #include "pim_zebra.h" | |
37 | #include "pim_mlag.h" | |
38 | ||
39 | #if MAXVIFS > 256 | |
40 | CPP_NOTICE("Work needs to be done to make this work properly via the pim mroute socket\n"); | |
41 | #endif /* MAXVIFS > 256 */ | |
42 | ||
43 | #if PIM_IPV == 4 | |
44 | const char *const PIM_ALL_SYSTEMS = MCAST_ALL_SYSTEMS; | |
45 | const char *const PIM_ALL_ROUTERS = MCAST_ALL_ROUTERS; | |
46 | const char *const PIM_ALL_PIM_ROUTERS = MCAST_ALL_PIM_ROUTERS; | |
47 | const char *const PIM_ALL_IGMP_ROUTERS = MCAST_ALL_IGMP_ROUTERS; | |
48 | #else | |
49 | const char *const PIM_ALL_SYSTEMS = "ff02::1"; | |
50 | const char *const PIM_ALL_ROUTERS = "ff02::2"; | |
51 | const char *const PIM_ALL_PIM_ROUTERS = "ff02::d"; | |
52 | const char *const PIM_ALL_IGMP_ROUTERS = "ff02::16"; | |
53 | #endif | |
54 | ||
55 | DEFINE_MTYPE_STATIC(PIMD, ROUTER, "PIM Router information"); | |
56 | ||
57 | struct pim_router *router = NULL; | |
58 | pim_addr qpim_all_pim_routers_addr; | |
59 | ||
60 | void pim_prefix_list_update(struct prefix_list *plist) | |
61 | { | |
62 | struct pim_instance *pim; | |
63 | struct vrf *vrf; | |
64 | ||
65 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
66 | pim = vrf->info; | |
67 | if (!pim) | |
68 | continue; | |
69 | ||
70 | pim_rp_prefix_list_update(pim, plist); | |
71 | pim_ssm_prefix_list_update(pim, plist); | |
72 | pim_upstream_spt_prefix_list_update(pim, plist); | |
73 | } | |
74 | } | |
75 | ||
76 | static void pim_free(void) | |
77 | { | |
78 | pim_route_map_terminate(); | |
79 | ||
80 | zclient_lookup_free(); | |
81 | } | |
82 | ||
83 | void pim_router_init(void) | |
84 | { | |
85 | router = XCALLOC(MTYPE_ROUTER, sizeof(*router)); | |
86 | ||
87 | router->debugs = 0; | |
88 | router->master = frr_init(); | |
89 | router->t_periodic = PIM_DEFAULT_T_PERIODIC; | |
90 | router->multipath = MULTIPATH_NUM; | |
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 = PIMADDR_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 | ||
115 | void pim_router_terminate(void) | |
116 | { | |
117 | XFREE(MTYPE_ROUTER, router); | |
118 | } | |
119 | ||
120 | void pim_init(void) | |
121 | { | |
122 | if (!inet_pton(PIM_AF, PIM_ALL_PIM_ROUTERS, | |
123 | &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 | assert(0); | |
130 | return; | |
131 | } | |
132 | ||
133 | pim_cmd_init(); | |
134 | } | |
135 | ||
136 | void pim_terminate(void) | |
137 | { | |
138 | struct zclient *zclient; | |
139 | ||
140 | bfd_protocol_integration_set_shutdown(true); | |
141 | ||
142 | /* reverse prefix_list_init */ | |
143 | prefix_list_add_hook(NULL); | |
144 | prefix_list_delete_hook(NULL); | |
145 | prefix_list_reset(); | |
146 | ||
147 | pim_vxlan_terminate(); | |
148 | pim_vrf_terminate(); | |
149 | ||
150 | zclient = pim_zebra_zclient_get(); | |
151 | if (zclient) { | |
152 | zclient_stop(zclient); | |
153 | zclient_free(zclient); | |
154 | } | |
155 | ||
156 | pim_free(); | |
157 | pim_mlag_terminate(); | |
158 | pim_router_terminate(); | |
159 | ||
160 | frr_fini(); | |
161 | } |