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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 1999 Yasuhiro Ohara
*/
#include <zebra.h>
#include <lib/version.h>
#include <lib/keychain.h>
#include <stdlib.h>
#include "getopt.h"
#include "frrevent.h"
#include "log.h"
#include "command.h"
#include "vty.h"
#include "memory.h"
#include "if.h"
#include "filter.h"
#include "prefix.h"
#include "plist.h"
#include "privs.h"
#include "sigevent.h"
#include "zclient.h"
#include "vrf.h"
#include "bfd.h"
#include "libfrr.h"
#include "ospf6d.h"
#include "ospf6_top.h"
#include "ospf6_message.h"
#include "ospf6_network.h"
#include "ospf6_asbr.h"
#include "ospf6_lsa.h"
#include "ospf6_interface.h"
#include "ospf6_zebra.h"
#include "ospf6_routemap_nb.h"
/* Default configuration file name for ospf6d. */
#define OSPF6_DEFAULT_CONFIG "ospf6d.conf"
/* Default port values. */
#define OSPF6_VTY_PORT 2606
/* ospf6d privileges */
zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND, ZCAP_SYS_ADMIN};
struct zebra_privs_t ospf6d_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 = array_size(_caps_p),
.cap_num_i = 0};
/* ospf6d options, we use GNU getopt library. */
struct option longopts[] = {{0}};
/* Master of threads. */
struct event_loop *master;
static void __attribute__((noreturn)) ospf6_exit(int status)
{
struct vrf *vrf;
struct interface *ifp;
struct ospf6 *ospf6;
struct listnode *node, *nnode;
frr_early_fini();
bfd_protocol_integration_set_shutdown(true);
for (ALL_LIST_ELEMENTS(om6->ospf6, node, nnode, ospf6)) {
vrf = vrf_lookup_by_id(ospf6->vrf_id);
ospf6_delete(ospf6);
ospf6 = NULL;
FOR_ALL_INTERFACES (vrf, ifp)
if (ifp->info != NULL)
ospf6_interface_delete(ifp->info);
}
ospf6_message_terminate();
ospf6_asbr_terminate();
ospf6_lsa_terminate();
/* reverse access_list_init */
access_list_reset();
/* reverse prefix_list_init */
prefix_list_add_hook(NULL);
prefix_list_delete_hook(NULL);
prefix_list_reset();
vrf_terminate();
if (zclient) {
zclient_stop(zclient);
zclient_free(zclient);
}
frr_fini();
exit(status);
}
/* SIGHUP handler. */
static void sighup(void)
{
zlog_info("SIGHUP received");
}
/* SIGINT handler. */
static void sigint(void)
{
zlog_notice("Terminating on signal SIGINT");
ospf6_exit(0);
}
/* SIGTERM handler. */
static void sigterm(void)
{
zlog_notice("Terminating on signal SIGTERM");
ospf6_exit(0);
}
/* SIGUSR1 handler. */
static void sigusr1(void)
{
zlog_info("SIGUSR1 received");
zlog_rotate();
}
struct frr_signal_t ospf6_signals[] = {
{
.signal = SIGHUP,
.handler = &sighup,
},
{
.signal = SIGINT,
.handler = &sigint,
},
{
.signal = SIGTERM,
.handler = &sigterm,
},
{
.signal = SIGUSR1,
.handler = &sigusr1,
},
};
static const struct frr_yang_module_info *const ospf6d_yang_modules[] = {
&frr_filter_info,
&frr_interface_info,
&frr_route_map_info,
&frr_vrf_info,
&frr_ospf_route_map_info,
&frr_ospf6_route_map_info,
};
FRR_DAEMON_INFO(ospf6d, OSPF6, .vty_port = OSPF6_VTY_PORT,
.proghelp = "Implementation of the OSPFv3 routing protocol.",
.signals = ospf6_signals,
.n_signals = array_size(ospf6_signals),
.privs = &ospf6d_privs, .yang_modules = ospf6d_yang_modules,
.n_yang_modules = array_size(ospf6d_yang_modules),
);
/* Max wait time for config to load before accepting hellos */
#define OSPF6_PRE_CONFIG_MAX_WAIT_SECONDS 600
static void ospf6_config_finish(struct event *t)
{
zlog_err("OSPF6 configuration end timer expired after %d seconds.",
OSPF6_PRE_CONFIG_MAX_WAIT_SECONDS);
}
static void ospf6_config_start(void)
{
if (IS_OSPF6_DEBUG_EVENT)
zlog_debug("ospf6d config start received");
EVENT_OFF(t_ospf6_cfg);
event_add_timer(master, ospf6_config_finish, NULL,
OSPF6_PRE_CONFIG_MAX_WAIT_SECONDS, &t_ospf6_cfg);
}
static void ospf6_config_end(void)
{
if (IS_OSPF6_DEBUG_EVENT)
zlog_debug("ospf6d config end received");
EVENT_OFF(t_ospf6_cfg);
}
/* Main routine of ospf6d. Treatment of argument and starting ospf finite
state machine is handled here. */
int main(int argc, char *argv[], char *envp[])
{
int opt;
frr_preinit(&ospf6d_di, argc, argv);
frr_opt_add("", longopts, "");
/* Command line argument treatment. */
while (1) {
opt = frr_getopt(argc, argv, NULL);
if (opt == EOF)
break;
switch (opt) {
case 0:
break;
default:
frr_help_exit(1);
}
}
if (geteuid() != 0) {
errno = EPERM;
perror(ospf6d_di.progname);
exit(1);
}
/* OSPF6 master init. */
ospf6_master_init(frr_init());
/* thread master */
master = om6->master;
keychain_init();
ospf6_vrf_init();
access_list_init();
prefix_list_init();
/* initialize ospf6 */
ospf6_init(master);
/* Configuration processing callback initialization. */
cmd_init_config_callbacks(ospf6_config_start, ospf6_config_end);
frr_config_fork();
frr_run(master);
/* Not reached. */
ospf6_exit(0);
}
|
