1 /*
2 * SHARP - main code
3 * Copyright (C) Cumulus Networks, Inc.
4 * Donald Sharp
5 *
6 * This file is part of FRR.
7 *
8 * FRR is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2, or (at your option) any
11 * later version.
12 *
13 * FRR is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; see the file COPYING; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22 #include <zebra.h>
23
24 #include <lib/version.h>
25 #include "getopt.h"
26 #include "thread.h"
27 #include "prefix.h"
28 #include "linklist.h"
29 #include "if.h"
30 #include "vector.h"
31 #include "vty.h"
32 #include "command.h"
33 #include "filter.h"
34 #include "plist.h"
35 #include "stream.h"
36 #include "log.h"
37 #include "memory.h"
38 #include "privs.h"
39 #include "sigevent.h"
40 #include "zclient.h"
41 #include "keychain.h"
42 #include "distribute.h"
43 #include "libfrr.h"
44 #include "routemap.h"
45 #include "nexthop_group.h"
46
47 #include "sharp_zebra.h"
48 #include "sharp_vty.h"
49 #include "sharp_globals.h"
50
51 DEFINE_MGROUP(SHARPD, "sharpd")
52
53 zebra_capabilities_t _caps_p[] = {
54 };
55
56 struct zebra_privs_t sharp_privs = {
57 #if defined(FRR_USER) && defined(FRR_GROUP)
58 .user = FRR_USER,
59 .group = FRR_GROUP,
60 #endif
61 #if defined(VTY_GROUP)
62 .vty_group = VTY_GROUP,
63 #endif
64 .caps_p = _caps_p,
65 .cap_num_p = array_size(_caps_p),
66 .cap_num_i = 0};
67
68 struct option longopts[] = {{0}};
69
70 /* Master of threads. */
71 struct thread_master *master;
72
73 /* SIGHUP handler. */
sighup(void)74 static void sighup(void)
75 {
76 zlog_info("SIGHUP received");
77 }
78
79 /* SIGINT / SIGTERM handler. */
sigint(void)80 static void sigint(void)
81 {
82 zlog_notice("Terminating on signal");
83
84 frr_fini();
85
86 exit(0);
87 }
88
89 /* SIGUSR1 handler. */
sigusr1(void)90 static void sigusr1(void)
91 {
92 zlog_rotate();
93 }
94
95 struct quagga_signal_t sharp_signals[] = {
96 {
97 .signal = SIGHUP,
98 .handler = &sighup,
99 },
100 {
101 .signal = SIGUSR1,
102 .handler = &sigusr1,
103 },
104 {
105 .signal = SIGINT,
106 .handler = &sigint,
107 },
108 {
109 .signal = SIGTERM,
110 .handler = &sigint,
111 },
112 };
113
114 #define SHARP_VTY_PORT 2614
115
116 static const struct frr_yang_module_info *const sharpd_yang_modules[] = {
117 &frr_filter_info,
118 &frr_interface_info,
119 &frr_route_map_info,
120 &frr_vrf_info,
121 };
122
123 FRR_DAEMON_INFO(sharpd, SHARP, .vty_port = SHARP_VTY_PORT,
124
125 .proghelp = "Implementation of a Sharp of routes daemon.",
126
127 .signals = sharp_signals,
128 .n_signals = array_size(sharp_signals),
129
130 .privs = &sharp_privs, .yang_modules = sharpd_yang_modules,
131 .n_yang_modules = array_size(sharpd_yang_modules), )
132
133 struct sharp_global sg;
134
sharp_global_init(void)135 static void sharp_global_init(void)
136 {
137 memset(&sg, 0, sizeof(sg));
138 sg.nhs = list_new();
139 }
140
main(int argc,char ** argv,char ** envp)141 int main(int argc, char **argv, char **envp)
142 {
143 frr_preinit(&sharpd_di, argc, argv);
144 frr_opt_add("", longopts, "");
145
146 while (1) {
147 int opt;
148
149 opt = frr_getopt(argc, argv, NULL);
150
151 if (opt == EOF)
152 break;
153
154 switch (opt) {
155 case 0:
156 break;
157 default:
158 frr_help_exit(1);
159 break;
160 }
161 }
162
163 master = frr_init();
164
165 sharp_global_init();
166
167 nexthop_group_init(NULL, NULL, NULL, NULL);
168 vrf_init(NULL, NULL, NULL, NULL, NULL);
169
170 sharp_zebra_init();
171
172 /* Get configuration file. */
173 sharp_vty_init();
174
175 frr_config_fork();
176 frr_run(master);
177
178 /* Not reached. */
179 return 0;
180 }
181