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Commit | Line | Data |
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718e3744 | 1 | /* Main routine of bgpd. |
896014f4 DL |
2 | * Copyright (C) 1996, 97, 98, 1999 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
03014d48 | 23 | #include <pthread.h> |
718e3744 | 24 | #include "vector.h" |
718e3744 | 25 | #include "command.h" |
26 | #include "getopt.h" | |
27 | #include "thread.h" | |
5e4fa164 | 28 | #include <lib/version.h> |
718e3744 | 29 | #include "memory.h" |
30 | #include "prefix.h" | |
31 | #include "log.h" | |
edd7c245 | 32 | #include "privs.h" |
2d75d052 | 33 | #include "sigevent.h" |
228da428 CC |
34 | #include "zclient.h" |
35 | #include "routemap.h" | |
36 | #include "filter.h" | |
37 | #include "plist.h" | |
8196f13d | 38 | #include "stream.h" |
3f9c7369 | 39 | #include "queue.h" |
6a69b354 | 40 | #include "vrf.h" |
567b877d | 41 | #include "bfd.h" |
4f04a76b | 42 | #include "libfrr.h" |
61cf4b37 | 43 | #include "ns.h" |
718e3744 | 44 | |
45 | #include "bgpd/bgpd.h" | |
46 | #include "bgpd/bgp_attr.h" | |
b2f0fa55 | 47 | #include "bgpd/bgp_route.h" |
718e3744 | 48 | #include "bgpd/bgp_mplsvpn.h" |
228da428 CC |
49 | #include "bgpd/bgp_aspath.h" |
50 | #include "bgpd/bgp_dump.h" | |
51 | #include "bgpd/bgp_route.h" | |
52 | #include "bgpd/bgp_nexthop.h" | |
53 | #include "bgpd/bgp_regex.h" | |
54 | #include "bgpd/bgp_clist.h" | |
55 | #include "bgpd/bgp_debug.h" | |
14454c9f | 56 | #include "bgpd/bgp_errors.h" |
228da428 | 57 | #include "bgpd/bgp_filter.h" |
8196f13d | 58 | #include "bgpd/bgp_zebra.h" |
d3ecc69e | 59 | #include "bgpd/bgp_packet.h" |
03014d48 | 60 | #include "bgpd/bgp_keepalives.h" |
61cf4b37 | 61 | #include "bgpd/bgp_network.h" |
def31c13 | 62 | #include "bgpd/bgp_errors.h" |
b4becb06 | 63 | #include "bgpd/bgp_script.h" |
e4a46416 CS |
64 | #include "lib/routing_nb.h" |
65 | #include "bgpd/bgp_nb.h" | |
45a859f1 | 66 | #include "bgpd/bgp_evpn_mh.h" |
c589d847 | 67 | #include "bgpd/bgp_nht.h" |
718e3744 | 68 | |
65efcfce | 69 | #ifdef ENABLE_BGP_VNC |
f8b6f499 | 70 | #include "bgpd/rfapi/rfapi_backend.h" |
65efcfce LB |
71 | #endif |
72 | ||
718e3744 | 73 | /* bgpd options, we use GNU getopt library. */ |
d62a17ae | 74 | static const struct option longopts[] = { |
75 | {"bgp_port", required_argument, NULL, 'p'}, | |
76 | {"listenon", required_argument, NULL, 'l'}, | |
d62a17ae | 77 | {"no_kernel", no_argument, NULL, 'n'}, |
78 | {"skip_runas", no_argument, NULL, 'S'}, | |
79 | {"ecmp", required_argument, NULL, 'e'}, | |
f533be73 | 80 | {"int_num", required_argument, NULL, 'I'}, |
c0064d2a | 81 | {"no_zebra", no_argument, NULL, 'Z'}, |
c2d020ad | 82 | {"socket_size", required_argument, NULL, 's'}, |
d62a17ae | 83 | {0}}; |
718e3744 | 84 | |
2d75d052 | 85 | /* signal definitions */ |
d62a17ae | 86 | void sighup(void); |
87 | void sigint(void); | |
88 | void sigusr1(void); | |
2d75d052 | 89 | |
d62a17ae | 90 | static void bgp_exit(int); |
91 | static void bgp_vrf_terminate(void); | |
228da428 | 92 | |
d62a17ae | 93 | static struct quagga_signal_t bgp_signals[] = { |
94 | { | |
95 | .signal = SIGHUP, | |
96 | .handler = &sighup, | |
97 | }, | |
98 | { | |
99 | .signal = SIGUSR1, | |
100 | .handler = &sigusr1, | |
101 | }, | |
102 | { | |
103 | .signal = SIGINT, | |
104 | .handler = &sigint, | |
105 | }, | |
106 | { | |
107 | .signal = SIGTERM, | |
108 | .handler = &sigint, | |
109 | }, | |
2d75d052 | 110 | }; |
111 | ||
edd7c245 | 112 | /* privileges */ |
996c9314 LB |
113 | static zebra_capabilities_t _caps_p[] = {ZCAP_BIND, ZCAP_NET_RAW, |
114 | ZCAP_NET_ADMIN, ZCAP_SYS_ADMIN}; | |
edd7c245 | 115 | |
d62a17ae | 116 | struct zebra_privs_t bgpd_privs = { |
b2f36157 | 117 | #if defined(FRR_USER) && defined(FRR_GROUP) |
d62a17ae | 118 | .user = FRR_USER, |
119 | .group = FRR_GROUP, | |
d81fadfd | 120 | #endif |
121 | #ifdef VTY_GROUP | |
d62a17ae | 122 | .vty_group = VTY_GROUP, |
edd7c245 | 123 | #endif |
d62a17ae | 124 | .caps_p = _caps_p, |
125 | .cap_num_p = array_size(_caps_p), | |
126 | .cap_num_i = 0, | |
edd7c245 | 127 | }; |
128 | ||
eb05883f DL |
129 | static struct frr_daemon_info bgpd_di; |
130 | ||
718e3744 | 131 | /* SIGHUP handler. */ |
d62a17ae | 132 | void sighup(void) |
718e3744 | 133 | { |
23ca3269 DS |
134 | zlog_info("SIGHUP received, ignoring"); |
135 | ||
136 | return; | |
137 | ||
138 | /* | |
139 | * This is turned off for the moment. There is all | |
140 | * sorts of config turned off by bgp_terminate | |
3130e286 | 141 | * that is not setup properly again in bgp_reset. |
23ca3269 DS |
142 | * I see no easy way to do this nor do I see that |
143 | * this is a desirable way to reload config | |
144 | * given the yang work. | |
145 | */ | |
d62a17ae | 146 | /* Terminate all thread. */ |
3130e286 DS |
147 | /* |
148 | * bgp_terminate(); | |
149 | * bgp_reset(); | |
150 | * zlog_info("bgpd restarting!"); | |
718e3744 | 151 | |
3130e286 DS |
152 | * Reload config file. |
153 | * vty_read_config(NULL, bgpd_di.config_file, config_default); | |
154 | */ | |
d62a17ae | 155 | /* Try to return to normal operation. */ |
718e3744 | 156 | } |
157 | ||
158 | /* SIGINT handler. */ | |
d62a17ae | 159 | __attribute__((__noreturn__)) void sigint(void) |
718e3744 | 160 | { |
d62a17ae | 161 | zlog_notice("Terminating on signal"); |
97b4a0ec LB |
162 | assert(bm->terminating == false); |
163 | bm->terminating = true; /* global flag that shutting down */ | |
718e3744 | 164 | |
c8dde10f | 165 | bgp_terminate(); |
718e3744 | 166 | |
d62a17ae | 167 | bgp_exit(0); |
540766e7 | 168 | |
d62a17ae | 169 | exit(0); |
718e3744 | 170 | } |
171 | ||
172 | /* SIGUSR1 handler. */ | |
d62a17ae | 173 | void sigusr1(void) |
718e3744 | 174 | { |
d62a17ae | 175 | zlog_rotate(); |
718e3744 | 176 | } |
228da428 CC |
177 | |
178 | /* | |
179 | Try to free up allocations we know about so that diagnostic tools such as | |
180 | valgrind are able to better illuminate leaks. | |
181 | ||
182 | Zebra route removal and protocol teardown are not meant to be done here. | |
183 | For example, "retain_mode" may be set. | |
184 | */ | |
d62a17ae | 185 | static __attribute__((__noreturn__)) void bgp_exit(int status) |
228da428 | 186 | { |
e2f3a930 | 187 | struct bgp *bgp, *bgp_default, *bgp_evpn; |
d62a17ae | 188 | struct listnode *node, *nnode; |
228da428 | 189 | |
d62a17ae | 190 | /* it only makes sense for this to be called on a clean exit */ |
191 | assert(status == 0); | |
228da428 | 192 | |
03951374 DL |
193 | frr_early_fini(); |
194 | ||
d62a17ae | 195 | bfd_gbl_exit(); |
567b877d | 196 | |
d62a17ae | 197 | bgp_close(); |
1ff9a340 | 198 | |
0e42e319 | 199 | bgp_default = bgp_get_default(); |
e2f3a930 | 200 | bgp_evpn = bgp_get_evpn(); |
0e42e319 | 201 | |
d62a17ae | 202 | /* reverse bgp_master_init */ |
0e42e319 | 203 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { |
e2f3a930 | 204 | if (bgp_default == bgp || bgp_evpn == bgp) |
0e42e319 | 205 | continue; |
d62a17ae | 206 | bgp_delete(bgp); |
0e42e319 | 207 | } |
e2f3a930 T |
208 | if (bgp_evpn && bgp_evpn != bgp_default) |
209 | bgp_delete(bgp_evpn); | |
1f4b2cce DS |
210 | if (bgp_default) |
211 | bgp_delete(bgp_default); | |
46abd3e3 | 212 | |
45a859f1 | 213 | bgp_evpn_mh_finish(); |
c589d847 | 214 | bgp_l3nhg_finish(); |
45a859f1 | 215 | |
d62a17ae | 216 | /* reverse bgp_dump_init */ |
217 | bgp_dump_finish(); | |
228da428 | 218 | |
d62a17ae | 219 | /* reverse bgp_route_init */ |
220 | bgp_route_finish(); | |
228da428 | 221 | |
d62a17ae | 222 | /* cleanup route maps */ |
223 | bgp_route_map_terminate(); | |
228da428 | 224 | |
d62a17ae | 225 | /* reverse bgp_attr_init */ |
226 | bgp_attr_finish(); | |
7b8def58 | 227 | |
2d4ee774 QY |
228 | /* stop pthreads */ |
229 | bgp_pthreads_finish(); | |
230 | ||
d62a17ae | 231 | /* reverse access_list_init */ |
232 | access_list_add_hook(NULL); | |
233 | access_list_delete_hook(NULL); | |
234 | access_list_reset(); | |
228da428 | 235 | |
d62a17ae | 236 | /* reverse bgp_filter_init */ |
237 | as_list_add_hook(NULL); | |
238 | as_list_delete_hook(NULL); | |
239 | bgp_filter_reset(); | |
228da428 | 240 | |
d62a17ae | 241 | /* reverse prefix_list_init */ |
242 | prefix_list_add_hook(NULL); | |
243 | prefix_list_delete_hook(NULL); | |
244 | prefix_list_reset(); | |
228da428 | 245 | |
d62a17ae | 246 | /* reverse community_list_init */ |
247 | community_list_terminate(bgp_clist); | |
228da428 | 248 | |
d62a17ae | 249 | bgp_vrf_terminate(); |
49e5a4a0 | 250 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 251 | vnc_zebra_destroy(); |
65efcfce | 252 | #endif |
d62a17ae | 253 | bgp_zebra_destroy(); |
228da428 | 254 | |
3d57c994 | 255 | bf_free(bm->rd_idspace); |
6a154c88 | 256 | list_delete(&bm->bgp); |
85e9cd9a | 257 | list_delete(&bm->addresses); |
0768f289 PG |
258 | |
259 | bgp_lp_finish(); | |
260 | ||
d62a17ae | 261 | memset(bm, 0, sizeof(*bm)); |
46857efe | 262 | |
03951374 | 263 | frr_fini(); |
d62a17ae | 264 | exit(status); |
228da428 | 265 | } |
6b0655a2 | 266 | |
d62a17ae | 267 | static int bgp_vrf_new(struct vrf *vrf) |
2fcc254e | 268 | { |
d62a17ae | 269 | if (BGP_DEBUG(zebra, ZEBRA)) |
a8bf7d9c | 270 | zlog_debug("VRF Created: %s(%u)", vrf->name, vrf->vrf_id); |
2fcc254e | 271 | |
d62a17ae | 272 | return 0; |
2fcc254e DS |
273 | } |
274 | ||
d62a17ae | 275 | static int bgp_vrf_delete(struct vrf *vrf) |
2fcc254e | 276 | { |
d62a17ae | 277 | if (BGP_DEBUG(zebra, ZEBRA)) |
a8bf7d9c | 278 | zlog_debug("VRF Deletion: %s(%u)", vrf->name, vrf->vrf_id); |
2fcc254e | 279 | |
d62a17ae | 280 | return 0; |
2fcc254e DS |
281 | } |
282 | ||
d62a17ae | 283 | static int bgp_vrf_enable(struct vrf *vrf) |
2fcc254e | 284 | { |
d62a17ae | 285 | struct bgp *bgp; |
286 | vrf_id_t old_vrf_id; | |
287 | ||
288 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a8bf7d9c | 289 | zlog_debug("VRF enable add %s id %u", vrf->name, vrf->vrf_id); |
d62a17ae | 290 | |
291 | bgp = bgp_lookup_by_name(vrf->name); | |
d5f31d5f | 292 | if (bgp && bgp->vrf_id != vrf->vrf_id) { |
9a8bdf1c PG |
293 | if (bgp->name && strmatch(vrf->name, VRF_DEFAULT_NAME)) { |
294 | XFREE(MTYPE_BGP, bgp->name); | |
9a8bdf1c PG |
295 | XFREE(MTYPE_BGP, bgp->name_pretty); |
296 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
d5f31d5f | 297 | bgp->inst_type = BGP_INSTANCE_TYPE_DEFAULT; |
49e5a4a0 | 298 | #ifdef ENABLE_BGP_VNC |
d5f31d5f PG |
299 | if (!bgp->rfapi) { |
300 | bgp->rfapi = bgp_rfapi_new(bgp); | |
301 | assert(bgp->rfapi); | |
302 | assert(bgp->rfapi_cfg); | |
303 | } | |
304 | #endif /* ENABLE_BGP_VNC */ | |
9a8bdf1c | 305 | } |
d62a17ae | 306 | old_vrf_id = bgp->vrf_id; |
307 | /* We have instance configured, link to VRF and make it "up". */ | |
308 | bgp_vrf_link(bgp, vrf); | |
309 | ||
e5619c28 | 310 | bgp_handle_socket(bgp, vrf, old_vrf_id, true); |
401d56cc | 311 | /* Update any redistribution if vrf_id changed */ |
d62a17ae | 312 | if (old_vrf_id != bgp->vrf_id) |
401d56cc | 313 | bgp_redistribute_redo(bgp); |
d62a17ae | 314 | bgp_instance_up(bgp); |
ddb5b488 PZ |
315 | vpn_leak_zebra_vrf_label_update(bgp, AFI_IP); |
316 | vpn_leak_zebra_vrf_label_update(bgp, AFI_IP6); | |
e504cf3b DS |
317 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, AFI_IP, |
318 | bgp_get_default(), bgp); | |
319 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_FROMVPN, AFI_IP, | |
320 | bgp_get_default(), bgp); | |
321 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, AFI_IP6, | |
322 | bgp_get_default(), bgp); | |
323 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_FROMVPN, AFI_IP6, | |
324 | bgp_get_default(), bgp); | |
d62a17ae | 325 | } |
326 | ||
327 | return 0; | |
2fcc254e DS |
328 | } |
329 | ||
d62a17ae | 330 | static int bgp_vrf_disable(struct vrf *vrf) |
2fcc254e | 331 | { |
d62a17ae | 332 | struct bgp *bgp; |
333 | vrf_id_t old_vrf_id; | |
334 | ||
335 | if (vrf->vrf_id == VRF_DEFAULT) | |
336 | return 0; | |
337 | ||
338 | if (BGP_DEBUG(zebra, ZEBRA)) | |
339 | zlog_debug("VRF disable %s id %d", vrf->name, vrf->vrf_id); | |
340 | ||
341 | bgp = bgp_lookup_by_name(vrf->name); | |
342 | if (bgp) { | |
ddb5b488 PZ |
343 | |
344 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP); | |
345 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP6); | |
e504cf3b DS |
346 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, AFI_IP, |
347 | bgp_get_default(), bgp); | |
348 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_FROMVPN, AFI_IP, | |
349 | bgp_get_default(), bgp); | |
350 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, AFI_IP6, | |
351 | bgp_get_default(), bgp); | |
352 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_FROMVPN, AFI_IP6, | |
353 | bgp_get_default(), bgp); | |
ddb5b488 | 354 | |
d62a17ae | 355 | old_vrf_id = bgp->vrf_id; |
e5619c28 | 356 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 357 | /* We have instance configured, unlink from VRF and make it |
358 | * "down". */ | |
359 | bgp_vrf_unlink(bgp, vrf); | |
401d56cc | 360 | /* Delete any redistribute vrf bitmaps if the vrf_id changed */ |
d62a17ae | 361 | if (old_vrf_id != bgp->vrf_id) |
401d56cc | 362 | bgp_unset_redist_vrf_bitmaps(bgp, old_vrf_id); |
d62a17ae | 363 | bgp_instance_down(bgp); |
364 | } | |
365 | ||
366 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
367 | return 0; | |
2fcc254e DS |
368 | } |
369 | ||
d62a17ae | 370 | static void bgp_vrf_init(void) |
2fcc254e | 371 | { |
ecbc5a37 | 372 | vrf_init(bgp_vrf_new, bgp_vrf_enable, bgp_vrf_disable, |
d5f31d5f | 373 | bgp_vrf_delete, bgp_vrf_enable); |
2fcc254e DS |
374 | } |
375 | ||
d62a17ae | 376 | static void bgp_vrf_terminate(void) |
021530c1 | 377 | { |
d62a17ae | 378 | vrf_terminate(); |
021530c1 | 379 | } |
380 | ||
0d8c7a26 | 381 | static const struct frr_yang_module_info *const bgpd_yang_modules[] = { |
e4a46416 | 382 | &frr_bgp_info, |
c2aab693 | 383 | &frr_filter_info, |
91835f1f RZ |
384 | &frr_interface_info, |
385 | &frr_route_map_info, | |
e4a46416 | 386 | &frr_routing_info, |
6fd8972a | 387 | &frr_vrf_info, |
8fcdd0d6 RW |
388 | }; |
389 | ||
d62a17ae | 390 | FRR_DAEMON_INFO(bgpd, BGP, .vty_port = BGP_VTY_PORT, |
4f04a76b | 391 | |
d62a17ae | 392 | .proghelp = "Implementation of the BGP routing protocol.", |
4f04a76b | 393 | |
d62a17ae | 394 | .signals = bgp_signals, .n_signals = array_size(bgp_signals), |
4f04a76b | 395 | |
8fcdd0d6 | 396 | .privs = &bgpd_privs, .yang_modules = bgpd_yang_modules, |
80413c20 DL |
397 | .n_yang_modules = array_size(bgpd_yang_modules), |
398 | ); | |
4f04a76b | 399 | |
f28963f7 | 400 | #define DEPRECATED_OPTIONS "" |
c8dde10f | 401 | |
718e3744 | 402 | /* Main routine of bgpd. Treatment of argument and start bgp finite |
403 | state machine is handled at here. */ | |
d62a17ae | 404 | int main(int argc, char **argv) |
718e3744 | 405 | { |
d62a17ae | 406 | int opt; |
407 | int tmp_port; | |
408 | ||
409 | int bgp_port = BGP_PORT_DEFAULT; | |
85e9cd9a | 410 | struct list *addresses = list_new(); |
d62a17ae | 411 | int no_fib_flag = 0; |
0b014ea6 | 412 | int no_zebra_flag = 0; |
d62a17ae | 413 | int skip_runas = 0; |
f533be73 | 414 | int instance = 0; |
c2d020ad | 415 | int buffer_size = BGP_SOCKET_SNDBUF_SIZE; |
85e9cd9a AMR |
416 | char *address; |
417 | struct listnode *node; | |
418 | ||
419 | addresses->cmp = (int (*)(void *, void *))strcmp; | |
d62a17ae | 420 | |
421 | frr_preinit(&bgpd_di, argc, argv); | |
422 | frr_opt_add( | |
c2d020ad | 423 | "p:l:SnZe:I:s:" DEPRECATED_OPTIONS, longopts, |
580f8636 | 424 | " -p, --bgp_port Set BGP listen port number (0 means do not listen).\n" |
d62a17ae | 425 | " -l, --listenon Listen on specified address (implies -n)\n" |
d62a17ae | 426 | " -n, --no_kernel Do not install route to kernel.\n" |
0b014ea6 | 427 | " -Z, --no_zebra Do not communicate with Zebra.\n" |
d62a17ae | 428 | " -S, --skip_runas Skip capabilities checks, and changing user and group IDs.\n" |
f533be73 | 429 | " -e, --ecmp Specify ECMP to use.\n" |
c2d020ad DS |
430 | " -I, --int_num Set instance number (label-manager)\n" |
431 | " -s, --socket_size Set BGP peer socket send buffer size\n"); | |
d62a17ae | 432 | |
433 | /* Command line argument treatment. */ | |
434 | while (1) { | |
435 | opt = frr_getopt(argc, argv, 0); | |
436 | ||
c8dde10f QY |
437 | if (opt && opt < 128 && strchr(DEPRECATED_OPTIONS, opt)) { |
438 | fprintf(stderr, | |
439 | "The -%c option no longer exists.\nPlease refer to the manual.\n", | |
440 | opt); | |
441 | continue; | |
442 | } | |
443 | ||
d62a17ae | 444 | if (opt == EOF) |
445 | break; | |
446 | ||
447 | switch (opt) { | |
448 | case 0: | |
449 | break; | |
450 | case 'p': | |
451 | tmp_port = atoi(optarg); | |
580f8636 | 452 | if (tmp_port < 0 || tmp_port > 0xffff) |
d62a17ae | 453 | bgp_port = BGP_PORT_DEFAULT; |
454 | else | |
455 | bgp_port = tmp_port; | |
456 | break; | |
1e03d6bc QY |
457 | case 'e': { |
458 | unsigned long int parsed_multipath = | |
459 | strtoul(optarg, NULL, 10); | |
460 | if (parsed_multipath == 0 | |
461 | || parsed_multipath > MULTIPATH_NUM | |
462 | || parsed_multipath > UINT_MAX) { | |
af4c2728 | 463 | flog_err( |
e50f7cfd | 464 | EC_BGP_MULTIPATH, |
1e03d6bc | 465 | "Multipath Number specified must be less than %u and greater than 0", |
d62a17ae | 466 | MULTIPATH_NUM); |
467 | return 1; | |
468 | } | |
1e03d6bc | 469 | multipath_num = parsed_multipath; |
d62a17ae | 470 | break; |
1e03d6bc | 471 | } |
d62a17ae | 472 | case 'l': |
85e9cd9a | 473 | listnode_add_sort_nodup(addresses, optarg); |
d62a17ae | 474 | /* listenon implies -n */ |
475 | /* fallthru */ | |
476 | case 'n': | |
477 | no_fib_flag = 1; | |
478 | break; | |
0b014ea6 PG |
479 | case 'Z': |
480 | no_zebra_flag = 1; | |
481 | break; | |
d62a17ae | 482 | case 'S': |
483 | skip_runas = 1; | |
484 | break; | |
f533be73 | 485 | case 'I': |
486 | instance = atoi(optarg); | |
487 | if (instance > (unsigned short)-1) | |
488 | zlog_err("Instance %i out of range (0..%u)", | |
489 | instance, (unsigned short)-1); | |
490 | break; | |
c2d020ad DS |
491 | case 's': |
492 | buffer_size = atoi(optarg); | |
493 | break; | |
d62a17ae | 494 | default: |
495 | frr_help_exit(1); | |
496 | break; | |
497 | } | |
718e3744 | 498 | } |
d62a17ae | 499 | if (skip_runas) |
500 | memset(&bgpd_privs, 0, sizeof(bgpd_privs)); | |
718e3744 | 501 | |
d62a17ae | 502 | /* BGP master init. */ |
85e9cd9a | 503 | bgp_master_init(frr_init(), buffer_size, addresses); |
d62a17ae | 504 | bm->port = bgp_port; |
580f8636 | 505 | if (bgp_port == 0) |
506 | bgp_option_set(BGP_OPT_NO_LISTEN); | |
0b014ea6 | 507 | if (no_fib_flag || no_zebra_flag) |
d62a17ae | 508 | bgp_option_set(BGP_OPT_NO_FIB); |
0b014ea6 PG |
509 | if (no_zebra_flag) |
510 | bgp_option_set(BGP_OPT_NO_ZEBRA); | |
def31c13 | 511 | bgp_error_init(); |
d62a17ae | 512 | /* Initializations. */ |
513 | bgp_vrf_init(); | |
718e3744 | 514 | |
fa22080d | 515 | #ifdef HAVE_SCRIPTING |
b4becb06 | 516 | bgp_script_init(); |
fa22080d | 517 | #endif |
b4becb06 | 518 | |
374069da CS |
519 | hook_register(routing_conf_event, |
520 | routing_control_plane_protocols_name_validate); | |
521 | ||
522 | ||
d62a17ae | 523 | /* BGP related initialization. */ |
f533be73 | 524 | bgp_init((unsigned short)instance); |
718e3744 | 525 | |
85e9cd9a AMR |
526 | if (list_isempty(bm->addresses)) { |
527 | snprintf(bgpd_di.startinfo, sizeof(bgpd_di.startinfo), | |
528 | ", bgp@<all>:%d", bm->port); | |
529 | } else { | |
530 | for (ALL_LIST_ELEMENTS_RO(bm->addresses, node, address)) | |
531 | snprintf(bgpd_di.startinfo + strlen(bgpd_di.startinfo), | |
532 | sizeof(bgpd_di.startinfo) | |
533 | - strlen(bgpd_di.startinfo), | |
534 | ", bgp@%s:%d", address, bm->port); | |
535 | } | |
718e3744 | 536 | |
d62a17ae | 537 | frr_config_fork(); |
2d4ee774 | 538 | /* must be called after fork() */ |
034e185d | 539 | bgp_gr_apply_running_config(); |
419dfe6a | 540 | bgp_pthreads_run(); |
d62a17ae | 541 | frr_run(bm->master); |
718e3744 | 542 | |
d62a17ae | 543 | /* Not reached. */ |
95f7965d | 544 | return 0; |
718e3744 | 545 | } |