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718e3744 | 1 | /* Zebra's client library. |
2 | * Copyright (C) 1999 Kunihiro Ishiguro | |
634f9ea2 | 3 | * Copyright (C) 2005 Andrew J. Schorr |
718e3744 | 4 | * |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published | |
9 | * by the Free Software Foundation; either version 2, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the | |
19 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
20 | * MA 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "prefix.h" | |
26 | #include "stream.h" | |
634f9ea2 | 27 | #include "buffer.h" |
718e3744 | 28 | #include "network.h" |
29 | #include "if.h" | |
30 | #include "log.h" | |
31 | #include "thread.h" | |
32 | #include "zclient.h" | |
33 | #include "memory.h" | |
34 | #include "table.h" | |
718e3744 | 35 | \f |
36 | /* Zebra client events. */ | |
37 | enum event {ZCLIENT_SCHEDULE, ZCLIENT_READ, ZCLIENT_CONNECT}; | |
38 | ||
39 | /* Prototype for event manager. */ | |
40 | static void zclient_event (enum event, struct zclient *); | |
41 | ||
634f9ea2 | 42 | extern struct thread_master *master; |
43 | ||
b5114685 VT |
44 | char *zclient_serv_path = NULL; |
45 | ||
718e3744 | 46 | /* This file local debug flag. */ |
47 | int zclient_debug = 0; | |
48 | \f | |
49 | /* Allocate zclient structure. */ | |
50 | struct zclient * | |
51 | zclient_new () | |
52 | { | |
53 | struct zclient *zclient; | |
393deb9b | 54 | zclient = XCALLOC (MTYPE_ZCLIENT, sizeof (struct zclient)); |
718e3744 | 55 | |
56 | zclient->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
57 | zclient->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ); | |
634f9ea2 | 58 | zclient->wb = buffer_new(0); |
718e3744 | 59 | |
60 | return zclient; | |
61 | } | |
62 | ||
228da428 | 63 | /* This function is only called when exiting, because |
634f9ea2 | 64 | many parts of the code do not check for I/O errors, so they could |
65 | reference an invalid pointer if the structure was ever freed. | |
634f9ea2 | 66 | |
228da428 | 67 | Free zclient structure. */ |
718e3744 | 68 | void |
69 | zclient_free (struct zclient *zclient) | |
70 | { | |
634f9ea2 | 71 | if (zclient->ibuf) |
72 | stream_free(zclient->ibuf); | |
73 | if (zclient->obuf) | |
74 | stream_free(zclient->obuf); | |
75 | if (zclient->wb) | |
76 | buffer_free(zclient->wb); | |
77 | ||
718e3744 | 78 | XFREE (MTYPE_ZCLIENT, zclient); |
79 | } | |
80 | ||
81 | /* Initialize zebra client. Argument redist_default is unwanted | |
82 | redistribute route type. */ | |
83 | void | |
84 | zclient_init (struct zclient *zclient, int redist_default) | |
85 | { | |
86 | int i; | |
87 | ||
88 | /* Enable zebra client connection by default. */ | |
89 | zclient->enable = 1; | |
90 | ||
91 | /* Set -1 to the default socket value. */ | |
92 | zclient->sock = -1; | |
93 | ||
94 | /* Clear redistribution flags. */ | |
95 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
96 | zclient->redist[i] = 0; | |
97 | ||
98 | /* Set unwanted redistribute route. bgpd does not need BGP route | |
99 | redistribution. */ | |
100 | zclient->redist_default = redist_default; | |
101 | zclient->redist[redist_default] = 1; | |
102 | ||
103 | /* Set default-information redistribute to zero. */ | |
104 | zclient->default_information = 0; | |
105 | ||
106 | /* Schedule first zclient connection. */ | |
107 | if (zclient_debug) | |
8ddca704 | 108 | zlog_debug ("zclient start scheduled"); |
718e3744 | 109 | |
110 | zclient_event (ZCLIENT_SCHEDULE, zclient); | |
111 | } | |
112 | ||
113 | /* Stop zebra client services. */ | |
114 | void | |
115 | zclient_stop (struct zclient *zclient) | |
116 | { | |
117 | if (zclient_debug) | |
8ddca704 | 118 | zlog_debug ("zclient stopped"); |
718e3744 | 119 | |
120 | /* Stop threads. */ | |
634f9ea2 | 121 | THREAD_OFF(zclient->t_read); |
122 | THREAD_OFF(zclient->t_connect); | |
123 | THREAD_OFF(zclient->t_write); | |
124 | ||
125 | /* Reset streams. */ | |
126 | stream_reset(zclient->ibuf); | |
127 | stream_reset(zclient->obuf); | |
128 | ||
129 | /* Empty the write buffer. */ | |
130 | buffer_reset(zclient->wb); | |
718e3744 | 131 | |
132 | /* Close socket. */ | |
133 | if (zclient->sock >= 0) | |
134 | { | |
135 | close (zclient->sock); | |
136 | zclient->sock = -1; | |
137 | } | |
138 | zclient->fail = 0; | |
139 | } | |
140 | ||
141 | void | |
142 | zclient_reset (struct zclient *zclient) | |
143 | { | |
144 | zclient_stop (zclient); | |
145 | zclient_init (zclient, zclient->redist_default); | |
146 | } | |
147 | ||
b5114685 VT |
148 | #ifdef HAVE_TCP_ZEBRA |
149 | ||
718e3744 | 150 | /* Make socket to zebra daemon. Return zebra socket. */ |
b5114685 | 151 | static int |
634f9ea2 | 152 | zclient_socket(void) |
718e3744 | 153 | { |
154 | int sock; | |
155 | int ret; | |
156 | struct sockaddr_in serv; | |
157 | ||
158 | /* We should think about IPv6 connection. */ | |
159 | sock = socket (AF_INET, SOCK_STREAM, 0); | |
160 | if (sock < 0) | |
161 | return -1; | |
162 | ||
163 | /* Make server socket. */ | |
164 | memset (&serv, 0, sizeof (struct sockaddr_in)); | |
165 | serv.sin_family = AF_INET; | |
166 | serv.sin_port = htons (ZEBRA_PORT); | |
6f0e3f6e | 167 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 168 | serv.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 169 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 170 | serv.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
171 | ||
172 | /* Connect to zebra. */ | |
173 | ret = connect (sock, (struct sockaddr *) &serv, sizeof (serv)); | |
174 | if (ret < 0) | |
175 | { | |
176 | close (sock); | |
177 | return -1; | |
178 | } | |
179 | return sock; | |
180 | } | |
181 | ||
3414d035 | 182 | #else |
b5114685 | 183 | |
718e3744 | 184 | /* For sockaddr_un. */ |
185 | #include <sys/un.h> | |
186 | ||
b5114685 | 187 | static int |
8c328f11 | 188 | zclient_socket_un (const char *path) |
718e3744 | 189 | { |
190 | int ret; | |
191 | int sock, len; | |
192 | struct sockaddr_un addr; | |
193 | ||
194 | sock = socket (AF_UNIX, SOCK_STREAM, 0); | |
195 | if (sock < 0) | |
196 | return -1; | |
197 | ||
198 | /* Make server socket. */ | |
199 | memset (&addr, 0, sizeof (struct sockaddr_un)); | |
200 | addr.sun_family = AF_UNIX; | |
201 | strncpy (addr.sun_path, path, strlen (path)); | |
6f0e3f6e | 202 | #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN |
718e3744 | 203 | len = addr.sun_len = SUN_LEN(&addr); |
204 | #else | |
205 | len = sizeof (addr.sun_family) + strlen (addr.sun_path); | |
6f0e3f6e | 206 | #endif /* HAVE_STRUCT_SOCKADDR_UN_SUN_LEN */ |
718e3744 | 207 | |
208 | ret = connect (sock, (struct sockaddr *) &addr, len); | |
209 | if (ret < 0) | |
210 | { | |
211 | close (sock); | |
212 | return -1; | |
213 | } | |
214 | return sock; | |
215 | } | |
216 | ||
3414d035 VT |
217 | #endif /* HAVE_TCP_ZEBRA */ |
218 | ||
b5114685 VT |
219 | /** |
220 | * Connect to zebra daemon. | |
221 | * @param zclient a pointer to zclient structure | |
222 | * @return socket fd just to make sure that connection established | |
223 | * @see zclient_init | |
224 | * @see zclient_new | |
225 | */ | |
226 | int | |
227 | zclient_socket_connect (struct zclient *zclient) | |
228 | { | |
229 | #ifdef HAVE_TCP_ZEBRA | |
230 | zclient->sock = zclient_socket (); | |
231 | #else | |
232 | zclient->sock = zclient_socket_un (zclient_serv_path ? zclient_serv_path : ZEBRA_SERV_PATH); | |
233 | #endif | |
234 | return zclient->sock; | |
235 | } | |
236 | ||
634f9ea2 | 237 | static int |
238 | zclient_failed(struct zclient *zclient) | |
239 | { | |
240 | zclient->fail++; | |
241 | zclient_stop(zclient); | |
242 | zclient_event(ZCLIENT_CONNECT, zclient); | |
243 | return -1; | |
244 | } | |
245 | ||
246 | static int | |
247 | zclient_flush_data(struct thread *thread) | |
248 | { | |
249 | struct zclient *zclient = THREAD_ARG(thread); | |
250 | ||
251 | zclient->t_write = NULL; | |
252 | if (zclient->sock < 0) | |
253 | return -1; | |
254 | switch (buffer_flush_available(zclient->wb, zclient->sock)) | |
255 | { | |
256 | case BUFFER_ERROR: | |
257 | zlog_warn("%s: buffer_flush_available failed on zclient fd %d, closing", | |
258 | __func__, zclient->sock); | |
259 | return zclient_failed(zclient); | |
260 | break; | |
261 | case BUFFER_PENDING: | |
262 | zclient->t_write = thread_add_write(master, zclient_flush_data, | |
263 | zclient, zclient->sock); | |
264 | break; | |
265 | case BUFFER_EMPTY: | |
266 | break; | |
267 | } | |
268 | return 0; | |
269 | } | |
270 | ||
718e3744 | 271 | int |
634f9ea2 | 272 | zclient_send_message(struct zclient *zclient) |
273 | { | |
274 | if (zclient->sock < 0) | |
275 | return -1; | |
276 | switch (buffer_write(zclient->wb, zclient->sock, STREAM_DATA(zclient->obuf), | |
277 | stream_get_endp(zclient->obuf))) | |
278 | { | |
279 | case BUFFER_ERROR: | |
280 | zlog_warn("%s: buffer_write failed to zclient fd %d, closing", | |
281 | __func__, zclient->sock); | |
282 | return zclient_failed(zclient); | |
283 | break; | |
284 | case BUFFER_EMPTY: | |
285 | THREAD_OFF(zclient->t_write); | |
286 | break; | |
287 | case BUFFER_PENDING: | |
288 | THREAD_WRITE_ON(master, zclient->t_write, | |
289 | zclient_flush_data, zclient, zclient->sock); | |
290 | break; | |
291 | } | |
292 | return 0; | |
293 | } | |
294 | ||
d211086a | 295 | void |
c1b9800a | 296 | zclient_create_header (struct stream *s, uint16_t command) |
297 | { | |
298 | /* length placeholder, caller can update */ | |
299 | stream_putw (s, ZEBRA_HEADER_SIZE); | |
300 | stream_putc (s, ZEBRA_HEADER_MARKER); | |
301 | stream_putc (s, ZSERV_VERSION); | |
302 | stream_putw (s, command); | |
303 | } | |
304 | ||
634f9ea2 | 305 | /* Send simple Zebra message. */ |
306 | static int | |
718e3744 | 307 | zebra_message_send (struct zclient *zclient, int command) |
308 | { | |
309 | struct stream *s; | |
310 | ||
311 | /* Get zclient output buffer. */ | |
312 | s = zclient->obuf; | |
313 | stream_reset (s); | |
314 | ||
315 | /* Send very simple command only Zebra message. */ | |
c1b9800a | 316 | zclient_create_header (s, command); |
317 | ||
634f9ea2 | 318 | return zclient_send_message(zclient); |
718e3744 | 319 | } |
320 | ||
321 | /* Make connection to zebra daemon. */ | |
322 | int | |
323 | zclient_start (struct zclient *zclient) | |
324 | { | |
325 | int i; | |
326 | ||
327 | if (zclient_debug) | |
8ddca704 | 328 | zlog_debug ("zclient_start is called"); |
718e3744 | 329 | |
330 | /* zclient is disabled. */ | |
331 | if (! zclient->enable) | |
332 | return 0; | |
333 | ||
334 | /* If already connected to the zebra. */ | |
335 | if (zclient->sock >= 0) | |
336 | return 0; | |
337 | ||
338 | /* Check connect thread. */ | |
339 | if (zclient->t_connect) | |
340 | return 0; | |
341 | ||
b5114685 | 342 | if (zclient_socket_connect(zclient) < 0) |
718e3744 | 343 | { |
344 | if (zclient_debug) | |
8ddca704 | 345 | zlog_debug ("zclient connection fail"); |
718e3744 | 346 | zclient->fail++; |
347 | zclient_event (ZCLIENT_CONNECT, zclient); | |
348 | return -1; | |
349 | } | |
350 | ||
634f9ea2 | 351 | if (set_nonblocking(zclient->sock) < 0) |
352 | zlog_warn("%s: set_nonblocking(%d) failed", __func__, zclient->sock); | |
353 | ||
718e3744 | 354 | /* Clear fail count. */ |
355 | zclient->fail = 0; | |
356 | if (zclient_debug) | |
8ddca704 | 357 | zlog_debug ("zclient connect success with socket [%d]", zclient->sock); |
718e3744 | 358 | |
359 | /* Create read thread. */ | |
360 | zclient_event (ZCLIENT_READ, zclient); | |
361 | ||
18a6dce6 | 362 | /* We need router-id information. */ |
363 | zebra_message_send (zclient, ZEBRA_ROUTER_ID_ADD); | |
364 | ||
08a7a916 DT |
365 | /* We need interface information. */ |
366 | zebra_message_send (zclient, ZEBRA_INTERFACE_ADD); | |
367 | ||
718e3744 | 368 | /* Flush all redistribute request. */ |
369 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
370 | if (i != zclient->redist_default && zclient->redist[i]) | |
634f9ea2 | 371 | zebra_redistribute_send (ZEBRA_REDISTRIBUTE_ADD, zclient, i); |
718e3744 | 372 | |
373 | /* If default information is needed. */ | |
374 | if (zclient->default_information) | |
375 | zebra_message_send (zclient, ZEBRA_REDISTRIBUTE_DEFAULT_ADD); | |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
380 | /* This function is a wrapper function for calling zclient_start from | |
381 | timer or event thread. */ | |
634f9ea2 | 382 | static int |
718e3744 | 383 | zclient_connect (struct thread *t) |
384 | { | |
385 | struct zclient *zclient; | |
386 | ||
387 | zclient = THREAD_ARG (t); | |
388 | zclient->t_connect = NULL; | |
389 | ||
390 | if (zclient_debug) | |
8ddca704 | 391 | zlog_debug ("zclient_connect is called"); |
718e3744 | 392 | |
393 | return zclient_start (zclient); | |
394 | } | |
395 | \f | |
0a589359 | 396 | /* |
397 | * "xdr_encode"-like interface that allows daemon (client) to send | |
398 | * a message to zebra server for a route that needs to be | |
399 | * added/deleted to the kernel. Info about the route is specified | |
400 | * by the caller in a struct zapi_ipv4. zapi_ipv4_read() then writes | |
401 | * the info down the zclient socket using the stream_* functions. | |
402 | * | |
403 | * The corresponding read ("xdr_decode") function on the server | |
404 | * side is zread_ipv4_add()/zread_ipv4_delete(). | |
405 | * | |
406 | * 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F | |
407 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
408 | * | Length (2) | Command | Route Type | | |
409 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
410 | * | ZEBRA Flags | Message Flags | Prefix length | | |
411 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
412 | * | Destination IPv4 Prefix for route | | |
413 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
414 | * | Nexthop count | | |
415 | * +-+-+-+-+-+-+-+-+ | |
416 | * | |
417 | * | |
418 | * A number of IPv4 nexthop(s) or nexthop interface index(es) are then | |
419 | * described, as per the Nexthop count. Each nexthop described as: | |
420 | * | |
421 | * +-+-+-+-+-+-+-+-+ | |
422 | * | Nexthop Type | Set to one of ZEBRA_NEXTHOP_* | |
423 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
424 | * | IPv4 Nexthop address or Interface Index number | | |
425 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
426 | * | |
427 | * Alternatively, if the flags field has ZEBRA_FLAG_BLACKHOLE or | |
428 | * ZEBRA_FLAG_REJECT is set then Nexthop count is set to 1, then _no_ | |
429 | * nexthop information is provided, and the message describes a prefix | |
430 | * to blackhole or reject route. | |
431 | * | |
432 | * If ZAPI_MESSAGE_DISTANCE is set, the distance value is written as a 1 | |
433 | * byte value. | |
434 | * | |
435 | * If ZAPI_MESSAGE_METRIC is set, the metric value is written as an 8 | |
436 | * byte value. | |
437 | * | |
438 | * XXX: No attention paid to alignment. | |
439 | */ | |
718e3744 | 440 | int |
0a589359 | 441 | zapi_ipv4_route (u_char cmd, struct zclient *zclient, struct prefix_ipv4 *p, |
442 | struct zapi_ipv4 *api) | |
718e3744 | 443 | { |
444 | int i; | |
445 | int psize; | |
446 | struct stream *s; | |
447 | ||
448 | /* Reset stream. */ | |
449 | s = zclient->obuf; | |
450 | stream_reset (s); | |
c1b9800a | 451 | |
452 | zclient_create_header (s, cmd); | |
453 | ||
454 | /* Put type and nexthop. */ | |
718e3744 | 455 | stream_putc (s, api->type); |
456 | stream_putc (s, api->flags); | |
457 | stream_putc (s, api->message); | |
718e3744 | 458 | |
718e3744 | 459 | /* Put prefix information. */ |
460 | psize = PSIZE (p->prefixlen); | |
461 | stream_putc (s, p->prefixlen); | |
0a589359 | 462 | stream_write (s, (u_char *) & p->prefix, psize); |
718e3744 | 463 | |
464 | /* Nexthop, ifindex, distance and metric information. */ | |
465 | if (CHECK_FLAG (api->message, ZAPI_MESSAGE_NEXTHOP)) | |
466 | { | |
595db7f1 | 467 | if (CHECK_FLAG (api->flags, ZEBRA_FLAG_BLACKHOLE)) |
468 | { | |
469 | stream_putc (s, 1); | |
470 | stream_putc (s, ZEBRA_NEXTHOP_BLACKHOLE); | |
0a589359 | 471 | /* XXX assert(api->nexthop_num == 0); */ |
472 | /* XXX assert(api->ifindex_num == 0); */ | |
595db7f1 | 473 | } |
474 | else | |
475 | stream_putc (s, api->nexthop_num + api->ifindex_num); | |
718e3744 | 476 | |
477 | for (i = 0; i < api->nexthop_num; i++) | |
595db7f1 | 478 | { |
479 | stream_putc (s, ZEBRA_NEXTHOP_IPV4); | |
480 | stream_put_in_addr (s, api->nexthop[i]); | |
481 | } | |
718e3744 | 482 | for (i = 0; i < api->ifindex_num; i++) |
595db7f1 | 483 | { |
484 | stream_putc (s, ZEBRA_NEXTHOP_IFINDEX); | |
485 | stream_putl (s, api->ifindex[i]); | |
486 | } | |
718e3744 | 487 | } |
488 | ||
489 | if (CHECK_FLAG (api->message, ZAPI_MESSAGE_DISTANCE)) | |
490 | stream_putc (s, api->distance); | |
491 | if (CHECK_FLAG (api->message, ZAPI_MESSAGE_METRIC)) | |
492 | stream_putl (s, api->metric); | |
493 | ||
494 | /* Put length at the first point of the stream. */ | |
495 | stream_putw_at (s, 0, stream_get_endp (s)); | |
496 | ||
634f9ea2 | 497 | return zclient_send_message(zclient); |
718e3744 | 498 | } |
499 | ||
500 | #ifdef HAVE_IPV6 | |
501 | int | |
0a589359 | 502 | zapi_ipv6_route (u_char cmd, struct zclient *zclient, struct prefix_ipv6 *p, |
718e3744 | 503 | struct zapi_ipv6 *api) |
504 | { | |
505 | int i; | |
506 | int psize; | |
507 | struct stream *s; | |
508 | ||
509 | /* Reset stream. */ | |
510 | s = zclient->obuf; | |
511 | stream_reset (s); | |
512 | ||
c1b9800a | 513 | zclient_create_header (s, cmd); |
718e3744 | 514 | |
c1b9800a | 515 | /* Put type and nexthop. */ |
718e3744 | 516 | stream_putc (s, api->type); |
517 | stream_putc (s, api->flags); | |
518 | stream_putc (s, api->message); | |
519 | ||
520 | /* Put prefix information. */ | |
521 | psize = PSIZE (p->prefixlen); | |
522 | stream_putc (s, p->prefixlen); | |
523 | stream_write (s, (u_char *)&p->prefix, psize); | |
524 | ||
525 | /* Nexthop, ifindex, distance and metric information. */ | |
526 | if (CHECK_FLAG (api->message, ZAPI_MESSAGE_NEXTHOP)) | |
527 | { | |
528 | stream_putc (s, api->nexthop_num + api->ifindex_num); | |
529 | ||
530 | for (i = 0; i < api->nexthop_num; i++) | |
531 | { | |
532 | stream_putc (s, ZEBRA_NEXTHOP_IPV6); | |
533 | stream_write (s, (u_char *)api->nexthop[i], 16); | |
534 | } | |
535 | for (i = 0; i < api->ifindex_num; i++) | |
536 | { | |
537 | stream_putc (s, ZEBRA_NEXTHOP_IFINDEX); | |
538 | stream_putl (s, api->ifindex[i]); | |
539 | } | |
540 | } | |
541 | ||
542 | if (CHECK_FLAG (api->message, ZAPI_MESSAGE_DISTANCE)) | |
543 | stream_putc (s, api->distance); | |
544 | if (CHECK_FLAG (api->message, ZAPI_MESSAGE_METRIC)) | |
545 | stream_putl (s, api->metric); | |
546 | ||
547 | /* Put length at the first point of the stream. */ | |
548 | stream_putw_at (s, 0, stream_get_endp (s)); | |
549 | ||
634f9ea2 | 550 | return zclient_send_message(zclient); |
718e3744 | 551 | } |
718e3744 | 552 | #endif /* HAVE_IPV6 */ |
553 | ||
0a589359 | 554 | /* |
555 | * send a ZEBRA_REDISTRIBUTE_ADD or ZEBRA_REDISTRIBUTE_DELETE | |
556 | * for the route type (ZEBRA_ROUTE_KERNEL etc.). The zebra server will | |
557 | * then set/unset redist[type] in the client handle (a struct zserv) for the | |
558 | * sending client | |
559 | */ | |
718e3744 | 560 | int |
634f9ea2 | 561 | zebra_redistribute_send (int command, struct zclient *zclient, int type) |
718e3744 | 562 | { |
718e3744 | 563 | struct stream *s; |
564 | ||
634f9ea2 | 565 | s = zclient->obuf; |
566 | stream_reset(s); | |
718e3744 | 567 | |
c1b9800a | 568 | zclient_create_header (s, command); |
718e3744 | 569 | stream_putc (s, type); |
c1b9800a | 570 | |
571 | stream_putw_at (s, 0, stream_get_endp (s)); | |
572 | ||
634f9ea2 | 573 | return zclient_send_message(zclient); |
718e3744 | 574 | } |
575 | ||
18a6dce6 | 576 | /* Router-id update from zebra daemon. */ |
577 | void | |
578 | zebra_router_id_update_read (struct stream *s, struct prefix *rid) | |
579 | { | |
580 | int plen; | |
581 | ||
582 | /* Fetch interface address. */ | |
583 | rid->family = stream_getc (s); | |
584 | ||
585 | plen = prefix_blen (rid); | |
586 | stream_get (&rid->u.prefix, s, plen); | |
587 | rid->prefixlen = stream_getc (s); | |
588 | } | |
589 | ||
718e3744 | 590 | /* Interface addition from zebra daemon. */ |
0a589359 | 591 | /* |
592 | * The format of the message sent with type ZEBRA_INTERFACE_ADD or | |
593 | * ZEBRA_INTERFACE_DELETE from zebra to the client is: | |
594 | * 0 1 2 3 | |
595 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |
596 | * +-+-+-+-+-+-+-+-+ | |
597 | * | type | | |
598 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
599 | * | ifname | | |
600 | * | | | |
601 | * | | | |
602 | * | | | |
603 | * | | | |
604 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
605 | * | ifindex | | |
606 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
607 | * | if_flags | | |
c77d4546 | 608 | * | | |
0a589359 | 609 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
610 | * | metric | | |
611 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
612 | * | ifmtu | | |
613 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
614 | * | ifmtu6 | | |
615 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
616 | * | bandwidth | | |
617 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
618 | * | sockaddr_dl | | |
619 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
620 | */ | |
621 | ||
718e3744 | 622 | struct interface * |
623 | zebra_interface_add_read (struct stream *s) | |
624 | { | |
625 | struct interface *ifp; | |
02ff83c5 | 626 | char ifname_tmp[INTERFACE_NAMSIZ]; |
718e3744 | 627 | |
628 | /* Read interface name. */ | |
629 | stream_get (ifname_tmp, s, INTERFACE_NAMSIZ); | |
630 | ||
a349198f | 631 | /* Lookup/create interface by name. */ |
632 | ifp = if_get_by_name_len (ifname_tmp, strnlen(ifname_tmp, INTERFACE_NAMSIZ)); | |
718e3744 | 633 | |
634 | /* Read interface's index. */ | |
635 | ifp->ifindex = stream_getl (s); | |
636 | ||
637 | /* Read interface's value. */ | |
2e3b2e47 | 638 | ifp->status = stream_getc (s); |
c77d4546 | 639 | ifp->flags = stream_getq (s); |
718e3744 | 640 | ifp->metric = stream_getl (s); |
641 | ifp->mtu = stream_getl (s); | |
0a589359 | 642 | ifp->mtu6 = stream_getl (s); |
718e3744 | 643 | ifp->bandwidth = stream_getl (s); |
6f0e3f6e | 644 | #ifdef HAVE_STRUCT_SOCKADDR_DL |
718e3744 | 645 | stream_get (&ifp->sdl, s, sizeof (ifp->sdl)); |
646 | #else | |
647 | ifp->hw_addr_len = stream_getl (s); | |
648 | if (ifp->hw_addr_len) | |
649 | stream_get (ifp->hw_addr, s, ifp->hw_addr_len); | |
6f0e3f6e | 650 | #endif /* HAVE_STRUCT_SOCKADDR_DL */ |
718e3744 | 651 | |
652 | return ifp; | |
653 | } | |
654 | ||
0a589359 | 655 | /* |
656 | * Read interface up/down msg (ZEBRA_INTERFACE_UP/ZEBRA_INTERFACE_DOWN) | |
657 | * from zebra server. The format of this message is the same as | |
658 | * that sent for ZEBRA_INTERFACE_ADD/ZEBRA_INTERFACE_DELETE (see | |
659 | * comments for zebra_interface_add_read), except that no sockaddr_dl | |
660 | * is sent at the tail of the message. | |
661 | */ | |
718e3744 | 662 | struct interface * |
663 | zebra_interface_state_read (struct stream *s) | |
664 | { | |
665 | struct interface *ifp; | |
02ff83c5 | 666 | char ifname_tmp[INTERFACE_NAMSIZ]; |
718e3744 | 667 | |
668 | /* Read interface name. */ | |
669 | stream_get (ifname_tmp, s, INTERFACE_NAMSIZ); | |
670 | ||
671 | /* Lookup this by interface index. */ | |
a349198f | 672 | ifp = if_lookup_by_name_len (ifname_tmp, |
673 | strnlen(ifname_tmp, INTERFACE_NAMSIZ)); | |
718e3744 | 674 | |
675 | /* If such interface does not exist, indicate an error */ | |
676 | if (! ifp) | |
677 | return NULL; | |
678 | ||
679 | /* Read interface's index. */ | |
680 | ifp->ifindex = stream_getl (s); | |
681 | ||
682 | /* Read interface's value. */ | |
2e3b2e47 | 683 | ifp->status = stream_getc (s); |
c77d4546 | 684 | ifp->flags = stream_getq (s); |
718e3744 | 685 | ifp->metric = stream_getl (s); |
686 | ifp->mtu = stream_getl (s); | |
0a589359 | 687 | ifp->mtu6 = stream_getl (s); |
718e3744 | 688 | ifp->bandwidth = stream_getl (s); |
689 | ||
690 | return ifp; | |
691 | } | |
692 | ||
0a589359 | 693 | /* |
694 | * format of message for address additon is: | |
695 | * 0 | |
696 | * 0 1 2 3 4 5 6 7 | |
697 | * +-+-+-+-+-+-+-+-+ | |
698 | * | type | ZEBRA_INTERFACE_ADDRESS_ADD or | |
699 | * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_ADDRES_DELETE | |
700 | * | | | |
701 | * + + | |
702 | * | ifindex | | |
703 | * + + | |
704 | * | | | |
705 | * + + | |
706 | * | | | |
707 | * +-+-+-+-+-+-+-+-+ | |
708 | * | ifc_flags | flags for connected address | |
709 | * +-+-+-+-+-+-+-+-+ | |
710 | * | addr_family | | |
711 | * +-+-+-+-+-+-+-+-+ | |
712 | * | addr... | | |
713 | * : : | |
714 | * | | | |
715 | * +-+-+-+-+-+-+-+-+ | |
716 | * | addr_len | len of addr. E.g., addr_len = 4 for ipv4 addrs. | |
717 | * +-+-+-+-+-+-+-+-+ | |
718 | * | daddr.. | | |
719 | * : : | |
720 | * | | | |
721 | * +-+-+-+-+-+-+-+-+ | |
722 | * | |
723 | */ | |
724 | ||
18a6dce6 | 725 | void |
726 | zebra_interface_if_set_value (struct stream *s, struct interface *ifp) | |
727 | { | |
728 | /* Read interface's index. */ | |
729 | ifp->ifindex = stream_getl (s); | |
508ec910 | 730 | ifp->status = stream_getc (s); |
18a6dce6 | 731 | |
732 | /* Read interface's value. */ | |
c77d4546 | 733 | ifp->flags = stream_getq (s); |
18a6dce6 | 734 | ifp->metric = stream_getl (s); |
735 | ifp->mtu = stream_getl (s); | |
508ec910 | 736 | ifp->mtu6 = stream_getl (s); |
18a6dce6 | 737 | ifp->bandwidth = stream_getl (s); |
738 | } | |
739 | ||
3fb9cd6e | 740 | static int |
741 | memconstant(const void *s, int c, size_t n) | |
742 | { | |
743 | const u_char *p = s; | |
744 | ||
745 | while (n-- > 0) | |
746 | if (*p++ != c) | |
747 | return 0; | |
748 | return 1; | |
749 | } | |
750 | ||
718e3744 | 751 | struct connected * |
0a589359 | 752 | zebra_interface_address_read (int type, struct stream *s) |
718e3744 | 753 | { |
754 | unsigned int ifindex; | |
755 | struct interface *ifp; | |
756 | struct connected *ifc; | |
0a589359 | 757 | struct prefix p, d; |
718e3744 | 758 | int family; |
759 | int plen; | |
0a589359 | 760 | u_char ifc_flags; |
718e3744 | 761 | |
0a589359 | 762 | memset (&p, 0, sizeof(p)); |
763 | memset (&d, 0, sizeof(d)); | |
718e3744 | 764 | |
765 | /* Get interface index. */ | |
766 | ifindex = stream_getl (s); | |
767 | ||
768 | /* Lookup index. */ | |
769 | ifp = if_lookup_by_index (ifindex); | |
770 | if (ifp == NULL) | |
771 | { | |
0a589359 | 772 | zlog_warn ("zebra_interface_address_read(%s): " |
773 | "Can't find interface by ifindex: %d ", | |
774 | (type == ZEBRA_INTERFACE_ADDRESS_ADD? "ADD" : "DELETE"), | |
775 | ifindex); | |
718e3744 | 776 | return NULL; |
777 | } | |
778 | ||
779 | /* Fetch flag. */ | |
0a589359 | 780 | ifc_flags = stream_getc (s); |
718e3744 | 781 | |
782 | /* Fetch interface address. */ | |
783 | family = p.family = stream_getc (s); | |
784 | ||
0a589359 | 785 | plen = prefix_blen (&p); |
786 | stream_get (&p.u.prefix, s, plen); | |
718e3744 | 787 | p.prefixlen = stream_getc (s); |
788 | ||
789 | /* Fetch destination address. */ | |
0a589359 | 790 | stream_get (&d.u.prefix, s, plen); |
718e3744 | 791 | d.family = family; |
792 | ||
0a589359 | 793 | if (type == ZEBRA_INTERFACE_ADDRESS_ADD) |
794 | { | |
3fb9cd6e | 795 | /* N.B. NULL destination pointers are encoded as all zeroes */ |
796 | ifc = connected_add_by_prefix(ifp, &p,(memconstant(&d.u.prefix,0,plen) ? | |
797 | NULL : &d)); | |
0a589359 | 798 | if (ifc != NULL) |
e4529636 AS |
799 | { |
800 | ifc->flags = ifc_flags; | |
801 | if (ifc->destination) | |
802 | ifc->destination->prefixlen = ifc->address->prefixlen; | |
803 | } | |
0a589359 | 804 | } |
805 | else | |
806 | { | |
807 | assert (type == ZEBRA_INTERFACE_ADDRESS_DELETE); | |
808 | ifc = connected_delete_by_prefix(ifp, &p); | |
809 | } | |
718e3744 | 810 | |
811 | return ifc; | |
812 | } | |
0a589359 | 813 | |
718e3744 | 814 | \f |
815 | /* Zebra client message read function. */ | |
634f9ea2 | 816 | static int |
718e3744 | 817 | zclient_read (struct thread *thread) |
818 | { | |
634f9ea2 | 819 | size_t already; |
c1b9800a | 820 | uint16_t length, command; |
821 | uint8_t marker, version; | |
718e3744 | 822 | struct zclient *zclient; |
823 | ||
824 | /* Get socket to zebra. */ | |
718e3744 | 825 | zclient = THREAD_ARG (thread); |
826 | zclient->t_read = NULL; | |
827 | ||
634f9ea2 | 828 | /* Read zebra header (if we don't have it already). */ |
829 | if ((already = stream_get_endp(zclient->ibuf)) < ZEBRA_HEADER_SIZE) | |
718e3744 | 830 | { |
634f9ea2 | 831 | ssize_t nbyte; |
832 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
833 | ZEBRA_HEADER_SIZE-already)) == 0) || | |
834 | (nbyte == -1)) | |
835 | { | |
836 | if (zclient_debug) | |
837 | zlog_debug ("zclient connection closed socket [%d].", zclient->sock); | |
838 | return zclient_failed(zclient); | |
839 | } | |
840 | if (nbyte != (ssize_t)(ZEBRA_HEADER_SIZE-already)) | |
841 | { | |
842 | /* Try again later. */ | |
843 | zclient_event (ZCLIENT_READ, zclient); | |
844 | return 0; | |
845 | } | |
846 | already = ZEBRA_HEADER_SIZE; | |
718e3744 | 847 | } |
848 | ||
634f9ea2 | 849 | /* Reset to read from the beginning of the incoming packet. */ |
850 | stream_set_getp(zclient->ibuf, 0); | |
718e3744 | 851 | |
c1b9800a | 852 | /* Fetch header values. */ |
718e3744 | 853 | length = stream_getw (zclient->ibuf); |
c1b9800a | 854 | marker = stream_getc (zclient->ibuf); |
855 | version = stream_getc (zclient->ibuf); | |
856 | command = stream_getw (zclient->ibuf); | |
857 | ||
858 | if (marker != ZEBRA_HEADER_MARKER || version != ZSERV_VERSION) | |
859 | { | |
860 | zlog_err("%s: socket %d version mismatch, marker %d, version %d", | |
861 | __func__, zclient->sock, marker, version); | |
862 | return zclient_failed(zclient); | |
863 | } | |
864 | ||
634f9ea2 | 865 | if (length < ZEBRA_HEADER_SIZE) |
866 | { | |
867 | zlog_err("%s: socket %d message length %u is less than %d ", | |
868 | __func__, zclient->sock, length, ZEBRA_HEADER_SIZE); | |
869 | return zclient_failed(zclient); | |
870 | } | |
871 | ||
718e3744 | 872 | /* Length check. */ |
634f9ea2 | 873 | if (length > STREAM_SIZE(zclient->ibuf)) |
718e3744 | 874 | { |
634f9ea2 | 875 | struct stream *ns; |
876 | zlog_warn("%s: message size %u exceeds buffer size %lu, expanding...", | |
877 | __func__, length, (u_long)STREAM_SIZE(zclient->ibuf)); | |
878 | ns = stream_new(length); | |
879 | stream_copy(ns, zclient->ibuf); | |
718e3744 | 880 | stream_free (zclient->ibuf); |
634f9ea2 | 881 | zclient->ibuf = ns; |
718e3744 | 882 | } |
718e3744 | 883 | |
884 | /* Read rest of zebra packet. */ | |
634f9ea2 | 885 | if (already < length) |
886 | { | |
887 | ssize_t nbyte; | |
888 | if (((nbyte = stream_read_try(zclient->ibuf, zclient->sock, | |
889 | length-already)) == 0) || | |
890 | (nbyte == -1)) | |
891 | { | |
892 | if (zclient_debug) | |
893 | zlog_debug("zclient connection closed socket [%d].", zclient->sock); | |
894 | return zclient_failed(zclient); | |
895 | } | |
896 | if (nbyte != (ssize_t)(length-already)) | |
897 | { | |
898 | /* Try again later. */ | |
899 | zclient_event (ZCLIENT_READ, zclient); | |
900 | return 0; | |
901 | } | |
902 | } | |
903 | ||
904 | length -= ZEBRA_HEADER_SIZE; | |
718e3744 | 905 | |
0a589359 | 906 | if (zclient_debug) |
8ddca704 | 907 | zlog_debug("zclient 0x%p command 0x%x \n", zclient, command); |
0a589359 | 908 | |
718e3744 | 909 | switch (command) |
910 | { | |
18a6dce6 | 911 | case ZEBRA_ROUTER_ID_UPDATE: |
912 | if (zclient->router_id_update) | |
9206f9ec | 913 | (*zclient->router_id_update) (command, zclient, length); |
18a6dce6 | 914 | break; |
718e3744 | 915 | case ZEBRA_INTERFACE_ADD: |
916 | if (zclient->interface_add) | |
9206f9ec | 917 | (*zclient->interface_add) (command, zclient, length); |
718e3744 | 918 | break; |
919 | case ZEBRA_INTERFACE_DELETE: | |
920 | if (zclient->interface_delete) | |
9206f9ec | 921 | (*zclient->interface_delete) (command, zclient, length); |
718e3744 | 922 | break; |
923 | case ZEBRA_INTERFACE_ADDRESS_ADD: | |
924 | if (zclient->interface_address_add) | |
9206f9ec | 925 | (*zclient->interface_address_add) (command, zclient, length); |
718e3744 | 926 | break; |
927 | case ZEBRA_INTERFACE_ADDRESS_DELETE: | |
928 | if (zclient->interface_address_delete) | |
9206f9ec | 929 | (*zclient->interface_address_delete) (command, zclient, length); |
718e3744 | 930 | break; |
931 | case ZEBRA_INTERFACE_UP: | |
932 | if (zclient->interface_up) | |
9206f9ec | 933 | (*zclient->interface_up) (command, zclient, length); |
718e3744 | 934 | break; |
935 | case ZEBRA_INTERFACE_DOWN: | |
936 | if (zclient->interface_down) | |
9206f9ec | 937 | (*zclient->interface_down) (command, zclient, length); |
718e3744 | 938 | break; |
939 | case ZEBRA_IPV4_ROUTE_ADD: | |
940 | if (zclient->ipv4_route_add) | |
9206f9ec | 941 | (*zclient->ipv4_route_add) (command, zclient, length); |
718e3744 | 942 | break; |
943 | case ZEBRA_IPV4_ROUTE_DELETE: | |
944 | if (zclient->ipv4_route_delete) | |
9206f9ec | 945 | (*zclient->ipv4_route_delete) (command, zclient, length); |
718e3744 | 946 | break; |
947 | case ZEBRA_IPV6_ROUTE_ADD: | |
948 | if (zclient->ipv6_route_add) | |
9206f9ec | 949 | (*zclient->ipv6_route_add) (command, zclient, length); |
718e3744 | 950 | break; |
951 | case ZEBRA_IPV6_ROUTE_DELETE: | |
952 | if (zclient->ipv6_route_delete) | |
9206f9ec | 953 | (*zclient->ipv6_route_delete) (command, zclient, length); |
718e3744 | 954 | break; |
955 | default: | |
956 | break; | |
957 | } | |
958 | ||
634f9ea2 | 959 | if (zclient->sock < 0) |
960 | /* Connection was closed during packet processing. */ | |
961 | return -1; | |
962 | ||
718e3744 | 963 | /* Register read thread. */ |
634f9ea2 | 964 | stream_reset(zclient->ibuf); |
718e3744 | 965 | zclient_event (ZCLIENT_READ, zclient); |
966 | ||
967 | return 0; | |
968 | } | |
969 | ||
970 | void | |
0a589359 | 971 | zclient_redistribute (int command, struct zclient *zclient, int type) |
718e3744 | 972 | { |
718e3744 | 973 | |
0a589359 | 974 | if (command == ZEBRA_REDISTRIBUTE_ADD) |
975 | { | |
976 | if (zclient->redist[type]) | |
977 | return; | |
978 | zclient->redist[type] = 1; | |
979 | } | |
980 | else | |
981 | { | |
982 | if (!zclient->redist[type]) | |
983 | return; | |
984 | zclient->redist[type] = 0; | |
985 | } | |
718e3744 | 986 | |
987 | if (zclient->sock > 0) | |
634f9ea2 | 988 | zebra_redistribute_send (command, zclient, type); |
718e3744 | 989 | } |
990 | ||
718e3744 | 991 | |
992 | void | |
0a589359 | 993 | zclient_redistribute_default (int command, struct zclient *zclient) |
718e3744 | 994 | { |
718e3744 | 995 | |
0a589359 | 996 | if (command == ZEBRA_REDISTRIBUTE_DEFAULT_ADD) |
997 | { | |
998 | if (zclient->default_information) | |
999 | return; | |
1000 | zclient->default_information = 1; | |
1001 | } | |
1002 | else | |
1003 | { | |
1004 | if (!zclient->default_information) | |
1005 | return; | |
1006 | zclient->default_information = 0; | |
1007 | } | |
718e3744 | 1008 | |
1009 | if (zclient->sock > 0) | |
0a589359 | 1010 | zebra_message_send (zclient, command); |
718e3744 | 1011 | } |
1012 | ||
718e3744 | 1013 | static void |
1014 | zclient_event (enum event event, struct zclient *zclient) | |
1015 | { | |
1016 | switch (event) | |
1017 | { | |
1018 | case ZCLIENT_SCHEDULE: | |
1019 | if (! zclient->t_connect) | |
1020 | zclient->t_connect = | |
1021 | thread_add_event (master, zclient_connect, zclient, 0); | |
1022 | break; | |
1023 | case ZCLIENT_CONNECT: | |
1024 | if (zclient->fail >= 10) | |
1025 | return; | |
1026 | if (zclient_debug) | |
8ddca704 | 1027 | zlog_debug ("zclient connect schedule interval is %d", |
718e3744 | 1028 | zclient->fail < 3 ? 10 : 60); |
1029 | if (! zclient->t_connect) | |
1030 | zclient->t_connect = | |
1031 | thread_add_timer (master, zclient_connect, zclient, | |
1032 | zclient->fail < 3 ? 10 : 60); | |
1033 | break; | |
1034 | case ZCLIENT_READ: | |
1035 | zclient->t_read = | |
1036 | thread_add_read (master, zclient_read, zclient, zclient->sock); | |
1037 | break; | |
1038 | } | |
1039 | } | |
b5114685 VT |
1040 | |
1041 | void | |
1042 | zclient_serv_path_set (char *path) | |
1043 | { | |
1044 | struct stat sb; | |
1045 | ||
1046 | /* reset */ | |
1047 | zclient_serv_path = NULL; | |
1048 | ||
1049 | /* test if `path' is socket. don't set it otherwise. */ | |
1050 | if (stat(path, &sb) == -1) | |
1051 | { | |
1052 | zlog_warn ("%s: zebra socket `%s' does not exist", __func__, path); | |
1053 | return; | |
1054 | } | |
1055 | ||
1056 | if ((sb.st_mode & S_IFMT) != S_IFSOCK) | |
1057 | { | |
1058 | zlog_warn ("%s: `%s' is not unix socket, sir", __func__, path); | |
1059 | return; | |
1060 | } | |
1061 | ||
1062 | /* it seems that path is unix socket */ | |
1063 | zclient_serv_path = path; | |
1064 | } | |
1065 |