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1 | // SPDX-License-Identifier: GPL-2.0-or-later | |
2 | /* RIPd main routine. | |
3 | * Copyright (C) 1997, 98 Kunihiro Ishiguro <kunihiro@zebra.org> | |
4 | */ | |
5 | ||
6 | #include <zebra.h> | |
7 | ||
8 | #include <lib/version.h> | |
9 | #include "getopt.h" | |
10 | #include "frrevent.h" | |
11 | #include "command.h" | |
12 | #include "memory.h" | |
13 | #include "prefix.h" | |
14 | #include "filter.h" | |
15 | #include "keychain.h" | |
16 | #include "log.h" | |
17 | #include "privs.h" | |
18 | #include "sigevent.h" | |
19 | #include "zclient.h" | |
20 | #include "vrf.h" | |
21 | #include "if_rmap.h" | |
22 | #include "libfrr.h" | |
23 | #include "routemap.h" | |
24 | #include "bfd.h" | |
25 | ||
26 | #include "ripd/ripd.h" | |
27 | #include "ripd/rip_bfd.h" | |
28 | #include "ripd/rip_nb.h" | |
29 | #include "ripd/rip_errors.h" | |
30 | ||
31 | /* ripd options. */ | |
32 | static struct option longopts[] = {{0}}; | |
33 | ||
34 | /* ripd privileges */ | |
35 | zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND, ZCAP_SYS_ADMIN}; | |
36 | ||
37 | uint32_t zebra_ecmp_count = MULTIPATH_NUM; | |
38 | ||
39 | struct zebra_privs_t ripd_privs = { | |
40 | #if defined(FRR_USER) | |
41 | .user = FRR_USER, | |
42 | #endif | |
43 | #if defined FRR_GROUP | |
44 | .group = FRR_GROUP, | |
45 | #endif | |
46 | #ifdef VTY_GROUP | |
47 | .vty_group = VTY_GROUP, | |
48 | #endif | |
49 | .caps_p = _caps_p, | |
50 | .cap_num_p = array_size(_caps_p), | |
51 | .cap_num_i = 0}; | |
52 | ||
53 | /* Master of threads. */ | |
54 | struct event_loop *master; | |
55 | ||
56 | static struct frr_daemon_info ripd_di; | |
57 | ||
58 | /* SIGHUP handler. */ | |
59 | static void sighup(void) | |
60 | { | |
61 | zlog_info("SIGHUP received"); | |
62 | ||
63 | /* Reload config file. */ | |
64 | vty_read_config(NULL, ripd_di.config_file, config_default); | |
65 | } | |
66 | ||
67 | /* SIGINT handler. */ | |
68 | static void sigint(void) | |
69 | { | |
70 | zlog_notice("Terminating on signal"); | |
71 | ||
72 | bfd_protocol_integration_set_shutdown(true); | |
73 | rip_vrf_terminate(); | |
74 | if_rmap_terminate(); | |
75 | rip_zclient_stop(); | |
76 | frr_fini(); | |
77 | ||
78 | exit(0); | |
79 | } | |
80 | ||
81 | /* SIGUSR1 handler. */ | |
82 | static void sigusr1(void) | |
83 | { | |
84 | zlog_rotate(); | |
85 | } | |
86 | ||
87 | static struct frr_signal_t ripd_signals[] = { | |
88 | { | |
89 | .signal = SIGHUP, | |
90 | .handler = &sighup, | |
91 | }, | |
92 | { | |
93 | .signal = SIGUSR1, | |
94 | .handler = &sigusr1, | |
95 | }, | |
96 | { | |
97 | .signal = SIGINT, | |
98 | .handler = &sigint, | |
99 | }, | |
100 | { | |
101 | .signal = SIGTERM, | |
102 | .handler = &sigint, | |
103 | }, | |
104 | }; | |
105 | ||
106 | static const struct frr_yang_module_info *const ripd_yang_modules[] = { | |
107 | &frr_filter_info, | |
108 | &frr_interface_info, | |
109 | &frr_ripd_info, | |
110 | &frr_route_map_info, | |
111 | &frr_vrf_info, | |
112 | }; | |
113 | ||
114 | FRR_DAEMON_INFO(ripd, RIP, .vty_port = RIP_VTY_PORT, | |
115 | ||
116 | .proghelp = "Implementation of the RIP routing protocol.", | |
117 | ||
118 | .signals = ripd_signals, .n_signals = array_size(ripd_signals), | |
119 | ||
120 | .privs = &ripd_privs, .yang_modules = ripd_yang_modules, | |
121 | .n_yang_modules = array_size(ripd_yang_modules), | |
122 | ); | |
123 | ||
124 | #define DEPRECATED_OPTIONS "" | |
125 | ||
126 | /* Main routine of ripd. */ | |
127 | int main(int argc, char **argv) | |
128 | { | |
129 | frr_preinit(&ripd_di, argc, argv); | |
130 | ||
131 | frr_opt_add("" DEPRECATED_OPTIONS, longopts, ""); | |
132 | ||
133 | /* Command line option parse. */ | |
134 | while (1) { | |
135 | int opt; | |
136 | ||
137 | opt = frr_getopt(argc, argv, NULL); | |
138 | ||
139 | if (opt && opt < 128 && strchr(DEPRECATED_OPTIONS, opt)) { | |
140 | fprintf(stderr, | |
141 | "The -%c option no longer exists.\nPlease refer to the manual.\n", | |
142 | opt); | |
143 | continue; | |
144 | } | |
145 | ||
146 | if (opt == EOF) | |
147 | break; | |
148 | ||
149 | switch (opt) { | |
150 | case 0: | |
151 | break; | |
152 | default: | |
153 | frr_help_exit(1); | |
154 | } | |
155 | } | |
156 | ||
157 | /* Prepare master thread. */ | |
158 | master = frr_init(); | |
159 | ||
160 | /* Library initialization. */ | |
161 | rip_error_init(); | |
162 | keychain_init(); | |
163 | rip_vrf_init(); | |
164 | ||
165 | /* RIP related initialization. */ | |
166 | rip_init(); | |
167 | rip_if_init(); | |
168 | rip_cli_init(); | |
169 | rip_zclient_init(master); | |
170 | rip_bfd_init(master); | |
171 | ||
172 | frr_config_fork(); | |
173 | frr_run(master); | |
174 | ||
175 | /* Not reached. */ | |
176 | return 0; | |
177 | } |