1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/*
* RIPngd main routine.
* Copyright (C) 1998, 1999 Kunihiro Ishiguro
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
#include <lib/version.h>
#include "getopt.h"
#include "vector.h"
#include "vty.h"
#include "command.h"
#include "memory.h"
#include "memory_vty.h"
#include "thread.h"
#include "log.h"
#include "prefix.h"
#include "if.h"
#include "privs.h"
#include "sigevent.h"
#include "vrf.h"
#include "libfrr.h"
#include "ripngd/ripngd.h"
/* RIPngd options. */
struct option longopts[] = {{"retain", no_argument, NULL, 'r'}, {0}};
/* ripngd privileges */
zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND};
struct zebra_privs_t ripngd_privs = {
#if defined(FRR_USER)
.user = FRR_USER,
#endif
#if defined FRR_GROUP
.group = FRR_GROUP,
#endif
#ifdef VTY_GROUP
.vty_group = VTY_GROUP,
#endif
.caps_p = _caps_p,
.cap_num_p = 2,
.cap_num_i = 0};
/* RIPngd program name */
/* Route retain mode flag. */
int retain_mode = 0;
/* Master of threads. */
struct thread_master *master;
static struct frr_daemon_info ripngd_di;
/* SIGHUP handler. */
static void sighup(void)
{
zlog_info("SIGHUP received");
ripng_clean();
ripng_reset();
/* Reload config file. */
vty_read_config(ripngd_di.config_file, config_default);
/* Try to return to normal operation. */
}
/* SIGINT handler. */
static void sigint(void)
{
zlog_notice("Terminating on signal");
if (!retain_mode)
ripng_clean();
ripng_zebra_stop();
exit(0);
}
/* SIGUSR1 handler. */
static void sigusr1(void)
{
zlog_rotate();
}
struct quagga_signal_t ripng_signals[] = {
{
.signal = SIGHUP,
.handler = &sighup,
},
{
.signal = SIGUSR1,
.handler = &sigusr1,
},
{
.signal = SIGINT,
.handler = &sigint,
},
{
.signal = SIGTERM,
.handler = &sigint,
},
};
FRR_DAEMON_INFO(ripngd, RIPNG, .vty_port = RIPNG_VTY_PORT,
.proghelp = "Implementation of the RIPng routing protocol.",
.signals = ripng_signals,
.n_signals = array_size(ripng_signals),
.privs = &ripngd_privs, )
/* RIPngd main routine. */
int main(int argc, char **argv)
{
frr_preinit(&ripngd_di, argc, argv);
frr_opt_add(
"r", longopts,
" -r, --retain When program terminates, retain added route by ripd.\n");
while (1) {
int opt;
opt = frr_getopt(argc, argv, NULL);
if (opt == EOF)
break;
switch (opt) {
case 0:
break;
case 'r':
retain_mode = 1;
break;
default:
frr_help_exit(1);
break;
}
}
master = frr_init();
/* Library inits. */
vrf_init(NULL, NULL, NULL, NULL);
/* RIPngd inits. */
ripng_init();
zebra_init(master);
ripng_peer_init();
frr_config_fork();
frr_run(master);
/* Not reached. */
return 0;
}
|
