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Commit | Line | Data |
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244c1cdc DS |
1 | /* Kernel routing table updates using netlink over GNU/Linux system. |
2 | * Copyright (C) 1997, 98, 99 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 | * | |
896014f4 DL |
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 | |
244c1cdc DS |
19 | */ |
20 | ||
21 | #include <zebra.h> | |
d62a17ae | 22 | #include <sys/un.h> /* for sockaddr_un */ |
244c1cdc | 23 | #include <net/if.h> |
c8ed14dd | 24 | #include "vty.h" |
244c1cdc DS |
25 | #include "zebra/zserv.h" |
26 | #include "zebra/interface.h" | |
27 | #include "zebra/debug.h" | |
28 | #include "zebra/zebra_ptm.h" | |
29 | #include "if.h" | |
30 | #include "command.h" | |
c43ed2e4 DS |
31 | #include "stream.h" |
32 | #include "ptm_lib.h" | |
8f500a1c | 33 | #include "network.h" |
c8ed14dd | 34 | #include "buffer.h" |
c43ed2e4 | 35 | #include "zebra/zebra_ptm_redistribute.h" |
68fe91d6 | 36 | #include "bfd.h" |
d553294e | 37 | #include "vrf.h" |
7c551956 DS |
38 | #include "rib.h" |
39 | #include "zebra_vrf.h" | |
ae435b19 | 40 | #include "version.h" |
244c1cdc DS |
41 | |
42 | #define ZEBRA_PTM_RECONNECT_TIME_INITIAL 1 /* initial reconnect is 1s */ | |
43 | #define ZEBRA_PTM_RECONNECT_TIME_MAX 300 | |
c01acf98 | 44 | |
c01acf98 | 45 | #define PTM_MSG_LEN 4 |
0a56c844 | 46 | #define PTM_HEADER_LEN 37 |
c43ed2e4 DS |
47 | |
48 | const char ZEBRA_PTM_GET_STATUS_CMD[] = "get-status"; | |
49 | const char ZEBRA_PTM_BFD_START_CMD[] = "start-bfd-sess"; | |
50 | const char ZEBRA_PTM_BFD_STOP_CMD[] = "stop-bfd-sess"; | |
055c4dfc | 51 | const char ZEBRA_PTM_BFD_CLIENT_REG_CMD[] = "reg-bfd-client"; |
567b877d | 52 | const char ZEBRA_PTM_BFD_CLIENT_DEREG_CMD[] = "dereg-bfd-client"; |
c43ed2e4 | 53 | |
c8ed14dd | 54 | const char ZEBRA_PTM_CMD_STR[] = "cmd"; |
b255a4b1 | 55 | const char ZEBRA_PTM_CMD_STATUS_STR[] = "cmd_status"; |
c43ed2e4 DS |
56 | const char ZEBRA_PTM_PORT_STR[] = "port"; |
57 | const char ZEBRA_PTM_CBL_STR[] = "cbl status"; | |
58 | const char ZEBRA_PTM_PASS_STR[] = "pass"; | |
59 | const char ZEBRA_PTM_FAIL_STR[] = "fail"; | |
60 | const char ZEBRA_PTM_BFDSTATUS_STR[] = "state"; | |
61 | const char ZEBRA_PTM_BFDSTATUS_UP_STR[] = "Up"; | |
62 | const char ZEBRA_PTM_BFDSTATUS_DOWN_STR[] = "Down"; | |
63 | const char ZEBRA_PTM_BFDDEST_STR[] = "peer"; | |
64 | const char ZEBRA_PTM_BFDSRC_STR[] = "local"; | |
d553294e | 65 | const char ZEBRA_PTM_BFDVRF_STR[] = "vrf"; |
c43ed2e4 DS |
66 | const char ZEBRA_PTM_INVALID_PORT_NAME[] = "N/A"; |
67 | const char ZEBRA_PTM_INVALID_SRC_IP[] = "N/A"; | |
d553294e | 68 | const char ZEBRA_PTM_INVALID_VRF[] = "N/A"; |
c43ed2e4 DS |
69 | |
70 | const char ZEBRA_PTM_BFD_DST_IP_FIELD[] = "dstIPaddr"; | |
71 | const char ZEBRA_PTM_BFD_SRC_IP_FIELD[] = "srcIPaddr"; | |
72 | const char ZEBRA_PTM_BFD_MIN_RX_FIELD[] = "requiredMinRx"; | |
73 | const char ZEBRA_PTM_BFD_MIN_TX_FIELD[] = "upMinTx"; | |
74 | const char ZEBRA_PTM_BFD_DETECT_MULT_FIELD[] = "detectMult"; | |
75 | const char ZEBRA_PTM_BFD_MULTI_HOP_FIELD[] = "multiHop"; | |
76 | const char ZEBRA_PTM_BFD_CLIENT_FIELD[] = "client"; | |
77 | const char ZEBRA_PTM_BFD_SEQID_FIELD[] = "seqid"; | |
78 | const char ZEBRA_PTM_BFD_IFNAME_FIELD[] = "ifName"; | |
79 | const char ZEBRA_PTM_BFD_MAX_HOP_CNT_FIELD[] = "maxHopCnt"; | |
68fe91d6 | 80 | const char ZEBRA_PTM_BFD_SEND_EVENT[] = "sendEvent"; |
d553294e | 81 | const char ZEBRA_PTM_BFD_VRF_NAME_FIELD[] = "vrfName"; |
c01acf98 | 82 | |
c43ed2e4 | 83 | static ptm_lib_handle_t *ptm_hdl; |
244c1cdc | 84 | |
c8ed14dd DS |
85 | struct zebra_ptm_cb ptm_cb; |
86 | ||
244c1cdc | 87 | static int zebra_ptm_socket_init(void); |
244c1cdc | 88 | int zebra_ptm_sock_read(struct thread *); |
d62a17ae | 89 | static void zebra_ptm_install_commands(void); |
b255a4b1 | 90 | static int zebra_ptm_handle_msg_cb(void *arg, void *in_ctxt); |
d62a17ae | 91 | void zebra_bfd_peer_replay_req(void); |
950bd436 | 92 | void zebra_ptm_send_status_req(void); |
93 | void zebra_ptm_reset_status(int ptm_disable); | |
8b1766b1 | 94 | static int zebra_ptm_bfd_client_deregister(struct zserv *client); |
244c1cdc DS |
95 | |
96 | const char ZEBRA_PTM_SOCK_NAME[] = "\0/var/run/ptmd.socket"; | |
97 | ||
d62a17ae | 98 | void zebra_ptm_init(void) |
244c1cdc | 99 | { |
d62a17ae | 100 | char buf[64]; |
c43ed2e4 | 101 | |
d62a17ae | 102 | memset(&ptm_cb, 0, sizeof(struct zebra_ptm_cb)); |
c8ed14dd | 103 | |
d62a17ae | 104 | ptm_cb.out_data = calloc(1, ZEBRA_PTM_SEND_MAX_SOCKBUF); |
105 | if (!ptm_cb.out_data) { | |
106 | zlog_warn("%s: Allocation of send data failed", __func__); | |
107 | return; | |
108 | } | |
c8ed14dd | 109 | |
d62a17ae | 110 | ptm_cb.in_data = calloc(1, ZEBRA_PTM_MAX_SOCKBUF); |
111 | if (!ptm_cb.in_data) { | |
112 | zlog_warn("%s: Allocation of recv data failed", __func__); | |
113 | free(ptm_cb.out_data); | |
114 | return; | |
115 | } | |
c8ed14dd | 116 | |
d62a17ae | 117 | ptm_cb.pid = getpid(); |
118 | zebra_ptm_install_commands(); | |
c43ed2e4 | 119 | |
d62a17ae | 120 | sprintf(buf, "%s", FRR_PTM_NAME); |
121 | ptm_hdl = ptm_lib_register(buf, NULL, zebra_ptm_handle_msg_cb, | |
122 | zebra_ptm_handle_msg_cb); | |
123 | ptm_cb.wb = buffer_new(0); | |
c8ed14dd | 124 | |
d62a17ae | 125 | ptm_cb.reconnect_time = ZEBRA_PTM_RECONNECT_TIME_INITIAL; |
c8ed14dd | 126 | |
d62a17ae | 127 | ptm_cb.ptm_sock = -1; |
453844ab | 128 | |
21ccc0cf | 129 | hook_register(zserv_client_close, zebra_ptm_bfd_client_deregister); |
c8ed14dd DS |
130 | } |
131 | ||
d62a17ae | 132 | void zebra_ptm_finish(void) |
c8ed14dd | 133 | { |
d62a17ae | 134 | buffer_flush_all(ptm_cb.wb, ptm_cb.ptm_sock); |
c8ed14dd | 135 | |
d62a17ae | 136 | free(ptm_hdl); |
58ac32e2 | 137 | |
d62a17ae | 138 | if (ptm_cb.out_data) |
139 | free(ptm_cb.out_data); | |
c8ed14dd | 140 | |
d62a17ae | 141 | if (ptm_cb.in_data) |
142 | free(ptm_cb.in_data); | |
c8ed14dd | 143 | |
d62a17ae | 144 | /* Release threads. */ |
145 | if (ptm_cb.t_read) | |
146 | thread_cancel(ptm_cb.t_read); | |
147 | if (ptm_cb.t_write) | |
148 | thread_cancel(ptm_cb.t_write); | |
149 | if (ptm_cb.t_timer) | |
150 | thread_cancel(ptm_cb.t_timer); | |
2376c3f2 | 151 | |
d62a17ae | 152 | if (ptm_cb.wb) |
153 | buffer_free(ptm_cb.wb); | |
2376c3f2 | 154 | |
1e9f448f | 155 | if (ptm_cb.ptm_sock >= 0) |
d62a17ae | 156 | close(ptm_cb.ptm_sock); |
c8ed14dd DS |
157 | } |
158 | ||
d62a17ae | 159 | static int zebra_ptm_flush_messages(struct thread *thread) |
c8ed14dd | 160 | { |
d62a17ae | 161 | ptm_cb.t_write = NULL; |
162 | ||
163 | if (ptm_cb.ptm_sock == -1) | |
164 | return -1; | |
165 | ||
166 | errno = 0; | |
167 | ||
168 | switch (buffer_flush_available(ptm_cb.wb, ptm_cb.ptm_sock)) { | |
169 | case BUFFER_ERROR: | |
170 | zlog_warn("%s ptm socket error: %s", __func__, | |
171 | safe_strerror(errno)); | |
172 | close(ptm_cb.ptm_sock); | |
173 | ptm_cb.ptm_sock = -1; | |
174 | zebra_ptm_reset_status(0); | |
175 | ptm_cb.t_timer = NULL; | |
176 | thread_add_timer(zebrad.master, zebra_ptm_connect, NULL, | |
177 | ptm_cb.reconnect_time, &ptm_cb.t_timer); | |
178 | return (-1); | |
179 | case BUFFER_PENDING: | |
180 | ptm_cb.t_write = NULL; | |
181 | thread_add_write(zebrad.master, zebra_ptm_flush_messages, NULL, | |
182 | ptm_cb.ptm_sock, &ptm_cb.t_write); | |
183 | break; | |
184 | case BUFFER_EMPTY: | |
185 | break; | |
186 | } | |
187 | ||
188 | return (0); | |
c8ed14dd DS |
189 | } |
190 | ||
d62a17ae | 191 | static int zebra_ptm_send_message(char *data, int size) |
c8ed14dd | 192 | { |
d62a17ae | 193 | errno = 0; |
194 | switch (buffer_write(ptm_cb.wb, ptm_cb.ptm_sock, data, size)) { | |
195 | case BUFFER_ERROR: | |
196 | zlog_warn("%s ptm socket error: %s", __func__, | |
197 | safe_strerror(errno)); | |
198 | close(ptm_cb.ptm_sock); | |
199 | ptm_cb.ptm_sock = -1; | |
200 | zebra_ptm_reset_status(0); | |
201 | ptm_cb.t_timer = NULL; | |
202 | thread_add_timer(zebrad.master, zebra_ptm_connect, NULL, | |
203 | ptm_cb.reconnect_time, &ptm_cb.t_timer); | |
204 | return -1; | |
205 | case BUFFER_EMPTY: | |
206 | THREAD_OFF(ptm_cb.t_write); | |
207 | break; | |
208 | case BUFFER_PENDING: | |
209 | thread_add_write(zebrad.master, zebra_ptm_flush_messages, NULL, | |
210 | ptm_cb.ptm_sock, &ptm_cb.t_write); | |
211 | break; | |
212 | } | |
213 | ||
214 | return 0; | |
244c1cdc DS |
215 | } |
216 | ||
d62a17ae | 217 | int zebra_ptm_connect(struct thread *t) |
244c1cdc | 218 | { |
d62a17ae | 219 | int init = 0; |
220 | ||
221 | if (ptm_cb.ptm_sock == -1) { | |
222 | zebra_ptm_socket_init(); | |
223 | init = 1; | |
224 | } | |
225 | ||
226 | if (ptm_cb.ptm_sock != -1) { | |
227 | if (init) { | |
228 | ptm_cb.t_read = NULL; | |
229 | thread_add_read(zebrad.master, zebra_ptm_sock_read, | |
230 | NULL, ptm_cb.ptm_sock, &ptm_cb.t_read); | |
231 | zebra_bfd_peer_replay_req(); | |
232 | } | |
233 | zebra_ptm_send_status_req(); | |
234 | ptm_cb.reconnect_time = ZEBRA_PTM_RECONNECT_TIME_INITIAL; | |
235 | } else if (ptm_cb.reconnect_time < ZEBRA_PTM_RECONNECT_TIME_MAX) { | |
236 | ptm_cb.reconnect_time *= 2; | |
237 | if (ptm_cb.reconnect_time > ZEBRA_PTM_RECONNECT_TIME_MAX) | |
238 | ptm_cb.reconnect_time = ZEBRA_PTM_RECONNECT_TIME_MAX; | |
239 | ||
240 | ptm_cb.t_timer = NULL; | |
241 | thread_add_timer(zebrad.master, zebra_ptm_connect, NULL, | |
242 | ptm_cb.reconnect_time, &ptm_cb.t_timer); | |
243 | } else if (ptm_cb.reconnect_time >= ZEBRA_PTM_RECONNECT_TIME_MAX) { | |
244 | ptm_cb.reconnect_time = ZEBRA_PTM_RECONNECT_TIME_INITIAL; | |
245 | } | |
246 | ||
247 | return (errno); | |
244c1cdc DS |
248 | } |
249 | ||
244c1cdc DS |
250 | DEFUN (zebra_ptm_enable, |
251 | zebra_ptm_enable_cmd, | |
252 | "ptm-enable", | |
253 | "Enable neighbor check with specified topology\n") | |
254 | { | |
d62a17ae | 255 | struct vrf *vrf; |
d62a17ae | 256 | struct interface *ifp; |
257 | struct zebra_if *if_data; | |
258 | ||
259 | ptm_cb.ptm_enable = ZEBRA_IF_PTM_ENABLE_ON; | |
260 | ||
a2addae8 | 261 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) |
451fda4f | 262 | FOR_ALL_INTERFACES (vrf, ifp) |
a2addae8 RW |
263 | if (!ifp->ptm_enable) { |
264 | if_data = (struct zebra_if *)ifp->info; | |
265 | if (if_data | |
266 | && (if_data->ptm_enable | |
9d303b37 | 267 | == ZEBRA_IF_PTM_ENABLE_UNSPEC)) { |
a2addae8 RW |
268 | ifp->ptm_enable = |
269 | ZEBRA_IF_PTM_ENABLE_ON; | |
270 | } | |
271 | /* Assign a default unknown status */ | |
272 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; | |
d62a17ae | 273 | } |
d62a17ae | 274 | |
275 | zebra_ptm_connect(NULL); | |
276 | ||
277 | return CMD_SUCCESS; | |
244c1cdc DS |
278 | } |
279 | ||
280 | DEFUN (no_zebra_ptm_enable, | |
281 | no_zebra_ptm_enable_cmd, | |
282 | "no ptm-enable", | |
283 | NO_STR | |
284 | "Enable neighbor check with specified topology\n") | |
285 | { | |
d62a17ae | 286 | ptm_cb.ptm_enable = ZEBRA_IF_PTM_ENABLE_OFF; |
287 | zebra_ptm_reset_status(1); | |
288 | return CMD_SUCCESS; | |
244c1cdc DS |
289 | } |
290 | ||
986aa00f | 291 | DEFUN (zebra_ptm_enable_if, |
292 | zebra_ptm_enable_if_cmd, | |
293 | "ptm-enable", | |
294 | "Enable neighbor check with specified topology\n") | |
295 | { | |
d62a17ae | 296 | VTY_DECLVAR_CONTEXT(interface, ifp); |
297 | struct zebra_if *if_data; | |
298 | int old_ptm_enable; | |
299 | int send_linkdown = 0; | |
300 | ||
a2023fab | 301 | if_data = ifp->info; |
302 | if_data->ptm_enable = ZEBRA_IF_PTM_ENABLE_UNSPEC; | |
303 | ||
d62a17ae | 304 | if (ifp->ifindex == IFINDEX_INTERNAL) { |
305 | return CMD_SUCCESS; | |
306 | } | |
307 | ||
308 | old_ptm_enable = ifp->ptm_enable; | |
309 | ifp->ptm_enable = ptm_cb.ptm_enable; | |
310 | ||
311 | if (if_is_no_ptm_operative(ifp)) | |
312 | send_linkdown = 1; | |
313 | ||
314 | if (!old_ptm_enable && ptm_cb.ptm_enable) { | |
315 | if (!if_is_operative(ifp) && send_linkdown) { | |
316 | if (IS_ZEBRA_DEBUG_EVENT) | |
317 | zlog_debug("%s: Bringing down interface %s\n", | |
318 | __func__, ifp->name); | |
319 | if_down(ifp); | |
320 | } | |
321 | } | |
322 | ||
d62a17ae | 323 | return CMD_SUCCESS; |
986aa00f | 324 | } |
325 | ||
326 | DEFUN (no_zebra_ptm_enable_if, | |
327 | no_zebra_ptm_enable_if_cmd, | |
328 | "no ptm-enable", | |
329 | NO_STR | |
330 | "Enable neighbor check with specified topology\n") | |
331 | { | |
d62a17ae | 332 | VTY_DECLVAR_CONTEXT(interface, ifp); |
333 | int send_linkup = 0; | |
334 | struct zebra_if *if_data; | |
335 | ||
336 | if ((ifp->ifindex != IFINDEX_INTERNAL) && (ifp->ptm_enable)) { | |
337 | if (!if_is_operative(ifp)) | |
338 | send_linkup = 1; | |
339 | ||
340 | ifp->ptm_enable = ZEBRA_IF_PTM_ENABLE_OFF; | |
341 | if (if_is_no_ptm_operative(ifp) && send_linkup) { | |
342 | if (IS_ZEBRA_DEBUG_EVENT) | |
343 | zlog_debug("%s: Bringing up interface %s\n", | |
344 | __func__, ifp->name); | |
345 | if_up(ifp); | |
346 | } | |
347 | } | |
348 | ||
349 | if_data = ifp->info; | |
350 | if_data->ptm_enable = ZEBRA_IF_PTM_ENABLE_OFF; | |
351 | ||
352 | return CMD_SUCCESS; | |
986aa00f | 353 | } |
354 | ||
355 | ||
d62a17ae | 356 | void zebra_ptm_write(struct vty *vty) |
244c1cdc | 357 | { |
d62a17ae | 358 | if (ptm_cb.ptm_enable) |
359 | vty_out(vty, "ptm-enable\n"); | |
244c1cdc | 360 | |
d62a17ae | 361 | return; |
244c1cdc DS |
362 | } |
363 | ||
d62a17ae | 364 | static int zebra_ptm_socket_init(void) |
244c1cdc | 365 | { |
d62a17ae | 366 | int ret; |
367 | int sock; | |
368 | struct sockaddr_un addr; | |
369 | ||
370 | ptm_cb.ptm_sock = -1; | |
371 | ||
372 | sock = socket(PF_UNIX, SOCK_STREAM, 0); | |
373 | if (sock < 0) | |
374 | return -1; | |
375 | if (set_nonblocking(sock) < 0) { | |
376 | if (IS_ZEBRA_DEBUG_EVENT) | |
377 | zlog_debug("%s: Unable to set socket non blocking[%s]", | |
378 | __PRETTY_FUNCTION__, safe_strerror(errno)); | |
379 | close(sock); | |
380 | return -1; | |
381 | } | |
382 | ||
383 | /* Make server socket. */ | |
384 | memset(&addr, 0, sizeof(struct sockaddr_un)); | |
385 | addr.sun_family = AF_UNIX; | |
386 | memcpy(&addr.sun_path, ZEBRA_PTM_SOCK_NAME, | |
387 | sizeof(ZEBRA_PTM_SOCK_NAME)); | |
388 | ||
389 | ret = connect(sock, (struct sockaddr *)&addr, | |
390 | sizeof(addr.sun_family) + sizeof(ZEBRA_PTM_SOCK_NAME) | |
391 | - 1); | |
392 | if (ret < 0) { | |
393 | if (IS_ZEBRA_DEBUG_EVENT) | |
394 | zlog_debug("%s: Unable to connect to socket %s [%s]", | |
395 | __func__, ZEBRA_PTM_SOCK_NAME, | |
396 | safe_strerror(errno)); | |
397 | close(sock); | |
398 | return -1; | |
399 | } | |
400 | ptm_cb.ptm_sock = sock; | |
401 | return sock; | |
244c1cdc DS |
402 | } |
403 | ||
d62a17ae | 404 | static void zebra_ptm_install_commands(void) |
244c1cdc | 405 | { |
d62a17ae | 406 | install_element(CONFIG_NODE, &zebra_ptm_enable_cmd); |
407 | install_element(CONFIG_NODE, &no_zebra_ptm_enable_cmd); | |
408 | install_element(INTERFACE_NODE, &zebra_ptm_enable_if_cmd); | |
409 | install_element(INTERFACE_NODE, &no_zebra_ptm_enable_if_cmd); | |
244c1cdc DS |
410 | } |
411 | ||
c43ed2e4 | 412 | /* BFD session goes down, send message to the protocols. */ |
d62a17ae | 413 | static void if_bfd_session_update(struct interface *ifp, struct prefix *dp, |
414 | struct prefix *sp, int status, | |
415 | vrf_id_t vrf_id) | |
c01acf98 | 416 | { |
d62a17ae | 417 | if (IS_ZEBRA_DEBUG_EVENT) { |
418 | char buf[2][INET6_ADDRSTRLEN]; | |
419 | ||
420 | if (ifp) { | |
421 | zlog_debug( | |
422 | "MESSAGE: ZEBRA_INTERFACE_BFD_DEST_UPDATE %s/%d on %s" | |
423 | " %s event", | |
424 | inet_ntop(dp->family, &dp->u.prefix, buf[0], | |
425 | INET6_ADDRSTRLEN), | |
426 | dp->prefixlen, ifp->name, | |
427 | bfd_get_status_str(status)); | |
428 | } else { | |
429 | zlog_debug( | |
430 | "MESSAGE: ZEBRA_INTERFACE_BFD_DEST_UPDATE %s/%d " | |
a9ff90c4 | 431 | "with src %s/%d and vrf %u %s event", |
d62a17ae | 432 | inet_ntop(dp->family, &dp->u.prefix, buf[0], |
433 | INET6_ADDRSTRLEN), | |
434 | dp->prefixlen, | |
435 | inet_ntop(sp->family, &sp->u.prefix, buf[1], | |
436 | INET6_ADDRSTRLEN), | |
437 | sp->prefixlen, vrf_id, | |
438 | bfd_get_status_str(status)); | |
439 | } | |
440 | } | |
441 | ||
442 | zebra_interface_bfd_update(ifp, dp, sp, status, vrf_id); | |
c01acf98 DS |
443 | } |
444 | ||
d62a17ae | 445 | static int zebra_ptm_handle_bfd_msg(void *arg, void *in_ctxt, |
446 | struct interface *ifp) | |
244c1cdc | 447 | { |
d62a17ae | 448 | char bfdst_str[32]; |
449 | char dest_str[64]; | |
450 | char src_str[64]; | |
451 | char vrf_str[64]; | |
452 | struct prefix dest_prefix; | |
453 | struct prefix src_prefix; | |
454 | vrf_id_t vrf_id; | |
455 | ||
456 | ptm_lib_find_key_in_msg(in_ctxt, ZEBRA_PTM_BFDSTATUS_STR, bfdst_str); | |
457 | ||
458 | if (bfdst_str[0] == '\0') { | |
459 | return -1; | |
460 | } | |
461 | ||
462 | ptm_lib_find_key_in_msg(in_ctxt, ZEBRA_PTM_BFDDEST_STR, dest_str); | |
463 | ||
464 | if (dest_str[0] == '\0') { | |
465 | zlog_debug("%s: Key %s not found in PTM msg", __func__, | |
466 | ZEBRA_PTM_BFDDEST_STR); | |
467 | return -1; | |
468 | } | |
469 | ||
470 | ptm_lib_find_key_in_msg(in_ctxt, ZEBRA_PTM_BFDSRC_STR, src_str); | |
471 | ||
472 | if (src_str[0] == '\0') { | |
473 | zlog_debug("%s: Key %s not found in PTM msg", __func__, | |
474 | ZEBRA_PTM_BFDSRC_STR); | |
475 | return -1; | |
476 | } | |
477 | ||
478 | ptm_lib_find_key_in_msg(in_ctxt, ZEBRA_PTM_BFDVRF_STR, vrf_str); | |
479 | ||
480 | if (vrf_str[0] == '\0') { | |
481 | zlog_debug("%s: Key %s not found in PTM msg", __func__, | |
482 | ZEBRA_PTM_BFDVRF_STR); | |
483 | return -1; | |
484 | } | |
485 | ||
486 | if (IS_ZEBRA_DEBUG_EVENT) | |
487 | zlog_debug( | |
488 | "%s: Recv Port [%s] bfd status [%s] vrf [%s]" | |
489 | " peer [%s] local [%s]", | |
490 | __func__, ifp ? ifp->name : "N/A", bfdst_str, vrf_str, | |
491 | dest_str, src_str); | |
492 | ||
493 | if (str2prefix(dest_str, &dest_prefix) == 0) { | |
494 | zlog_err("%s: Peer addr %s not found", __func__, dest_str); | |
495 | return -1; | |
496 | } | |
497 | ||
498 | memset(&src_prefix, 0, sizeof(struct prefix)); | |
499 | if (strcmp(ZEBRA_PTM_INVALID_SRC_IP, src_str)) { | |
500 | if (str2prefix(src_str, &src_prefix) == 0) { | |
501 | zlog_err("%s: Local addr %s not found", __func__, | |
502 | src_str); | |
503 | return -1; | |
504 | } | |
505 | } | |
506 | ||
507 | if (!strcmp(ZEBRA_PTM_INVALID_VRF, vrf_str) && ifp) { | |
508 | vrf_id = ifp->vrf_id; | |
509 | } else { | |
510 | vrf_id = vrf_name_to_id(vrf_str); | |
511 | } | |
512 | ||
513 | if (!strcmp(bfdst_str, ZEBRA_PTM_BFDSTATUS_DOWN_STR)) { | |
514 | if_bfd_session_update(ifp, &dest_prefix, &src_prefix, | |
515 | BFD_STATUS_DOWN, vrf_id); | |
516 | } else { | |
517 | if_bfd_session_update(ifp, &dest_prefix, &src_prefix, | |
518 | BFD_STATUS_UP, vrf_id); | |
519 | } | |
520 | ||
521 | return 0; | |
c01acf98 DS |
522 | } |
523 | ||
d62a17ae | 524 | static int zebra_ptm_handle_cbl_msg(void *arg, void *in_ctxt, |
525 | struct interface *ifp, char *cbl_str) | |
c01acf98 | 526 | { |
d62a17ae | 527 | int send_linkup = 0; |
528 | ||
529 | if (IS_ZEBRA_DEBUG_EVENT) | |
530 | zlog_debug("%s: Recv Port [%s] cbl status [%s]", __func__, | |
531 | ifp->name, cbl_str); | |
532 | ||
533 | if (!strcmp(cbl_str, ZEBRA_PTM_PASS_STR) | |
534 | && (ifp->ptm_status != ZEBRA_PTM_STATUS_UP)) { | |
535 | ||
536 | if (ifp->ptm_status == ZEBRA_PTM_STATUS_DOWN) | |
537 | send_linkup = 1; | |
538 | ifp->ptm_status = ZEBRA_PTM_STATUS_UP; | |
539 | if (ifp->ptm_enable && if_is_no_ptm_operative(ifp) | |
540 | && send_linkup) | |
541 | if_up(ifp); | |
542 | } else if (!strcmp(cbl_str, ZEBRA_PTM_FAIL_STR) | |
543 | && (ifp->ptm_status != ZEBRA_PTM_STATUS_DOWN)) { | |
544 | ifp->ptm_status = ZEBRA_PTM_STATUS_DOWN; | |
545 | if (ifp->ptm_enable && if_is_no_ptm_operative(ifp)) | |
546 | if_down(ifp); | |
547 | } | |
548 | ||
549 | return 0; | |
b255a4b1 | 550 | } |
950bd436 | 551 | |
b255a4b1 | 552 | /* |
553 | * zebra_ptm_handle_msg_cb - The purpose of this callback function is to handle | |
554 | * all the command responses and notifications received from PTM. | |
555 | * | |
556 | * Command responses: Upon establishing connection with PTM, Zebra requests | |
557 | * status of all interfaces using 'get-status' command if global ptm-enable | |
558 | * knob is enabled. As a response to the get-status command PTM sends status | |
559 | * of all the interfaces as command responses. All other type of command | |
560 | * responses with cmd_status key word are dropped. The sole purpose of | |
561 | * registering this function as callback for the command responses is to | |
562 | * handle the responses to get-status command. | |
563 | * | |
564 | * Notifications: Cable status and BFD session status changes are sent as | |
565 | * notifications by PTM. So, this function is also the callback function for | |
566 | * processing all the notifications from the PTM. | |
567 | * | |
568 | */ | |
d62a17ae | 569 | static int zebra_ptm_handle_msg_cb(void *arg, void *in_ctxt) |
b255a4b1 | 570 | { |
d62a17ae | 571 | struct interface *ifp = NULL; |
572 | char port_str[128]; | |
573 | char cbl_str[32]; | |
574 | char cmd_status_str[32]; | |
575 | ||
576 | ptm_lib_find_key_in_msg(in_ctxt, ZEBRA_PTM_CMD_STATUS_STR, | |
577 | cmd_status_str); | |
578 | ||
579 | /* Drop command response messages */ | |
580 | if (cmd_status_str[0] != '\0') { | |
581 | return 0; | |
582 | } | |
583 | ||
584 | ptm_lib_find_key_in_msg(in_ctxt, ZEBRA_PTM_PORT_STR, port_str); | |
585 | ||
586 | if (port_str[0] == '\0') { | |
587 | zlog_debug("%s: Key %s not found in PTM msg", __func__, | |
588 | ZEBRA_PTM_PORT_STR); | |
589 | return -1; | |
590 | } | |
591 | ||
592 | if (strcmp(ZEBRA_PTM_INVALID_PORT_NAME, port_str)) { | |
593 | ifp = if_lookup_by_name_all_vrf(port_str); | |
594 | ||
595 | if (!ifp) { | |
596 | zlog_err("%s: %s not found in interface list", __func__, | |
597 | port_str); | |
598 | return -1; | |
599 | } | |
600 | } | |
601 | ||
602 | ptm_lib_find_key_in_msg(in_ctxt, ZEBRA_PTM_CBL_STR, cbl_str); | |
603 | ||
604 | if (cbl_str[0] == '\0') { | |
605 | return zebra_ptm_handle_bfd_msg(arg, in_ctxt, ifp); | |
606 | } else { | |
607 | if (ifp) { | |
608 | return zebra_ptm_handle_cbl_msg(arg, in_ctxt, ifp, | |
609 | cbl_str); | |
610 | } else { | |
611 | return -1; | |
612 | } | |
613 | } | |
c01acf98 DS |
614 | } |
615 | ||
d62a17ae | 616 | int zebra_ptm_sock_read(struct thread *thread) |
c01acf98 | 617 | { |
2e1cc436 | 618 | int sock; |
d62a17ae | 619 | int rc; |
620 | ||
621 | errno = 0; | |
622 | sock = THREAD_FD(thread); | |
623 | ||
624 | if (sock == -1) | |
625 | return -1; | |
626 | ||
627 | /* PTM communicates in CSV format */ | |
2e1cc436 | 628 | do { |
d62a17ae | 629 | rc = ptm_lib_process_msg(ptm_hdl, sock, ptm_cb.in_data, |
630 | ZEBRA_PTM_MAX_SOCKBUF, NULL); | |
2e1cc436 | 631 | } while (rc > 0); |
d62a17ae | 632 | |
2e1cc436 A |
633 | if (((rc == 0) && !errno) |
634 | || (errno && (errno != EWOULDBLOCK) && (errno != EAGAIN))) { | |
635 | zlog_warn("%s routing socket error: %s(%d) bytes %d", | |
636 | __func__, safe_strerror(errno), errno, rc); | |
637 | ||
638 | close(ptm_cb.ptm_sock); | |
639 | ptm_cb.ptm_sock = -1; | |
640 | zebra_ptm_reset_status(0); | |
641 | ptm_cb.t_timer = NULL; | |
642 | thread_add_timer(zebrad.master, zebra_ptm_connect, NULL, | |
643 | ptm_cb.reconnect_time, | |
644 | &ptm_cb.t_timer); | |
645 | return (-1); | |
d62a17ae | 646 | } |
647 | ||
648 | ptm_cb.t_read = NULL; | |
649 | thread_add_read(zebrad.master, zebra_ptm_sock_read, NULL, | |
650 | ptm_cb.ptm_sock, &ptm_cb.t_read); | |
651 | ||
652 | return 0; | |
c43ed2e4 DS |
653 | } |
654 | ||
655 | /* BFD peer/dst register/update */ | |
89f4e507 | 656 | void zebra_ptm_bfd_dst_register(ZAPI_HANDLER_ARGS) |
c43ed2e4 | 657 | { |
d62a17ae | 658 | struct stream *s; |
659 | struct prefix src_p; | |
660 | struct prefix dst_p; | |
d7c0a89a QY |
661 | uint8_t multi_hop; |
662 | uint8_t multi_hop_cnt; | |
663 | uint8_t detect_mul; | |
d62a17ae | 664 | unsigned int min_rx_timer; |
665 | unsigned int min_tx_timer; | |
666 | char if_name[INTERFACE_NAMSIZ]; | |
d7c0a89a | 667 | uint8_t len; |
d62a17ae | 668 | void *out_ctxt; |
669 | char buf[INET6_ADDRSTRLEN]; | |
670 | char tmp_buf[64]; | |
671 | int data_len = ZEBRA_PTM_SEND_MAX_SOCKBUF; | |
672 | unsigned int pid; | |
673 | ||
89f4e507 | 674 | if (hdr->command == ZEBRA_BFD_DEST_UPDATE) |
d62a17ae | 675 | client->bfd_peer_upd8_cnt++; |
676 | else | |
677 | client->bfd_peer_add_cnt++; | |
678 | ||
679 | if (IS_ZEBRA_DEBUG_EVENT) | |
680 | zlog_debug("bfd_dst_register msg from client %s: length=%d", | |
89f4e507 | 681 | zebra_route_string(client->proto), hdr->length); |
d62a17ae | 682 | |
683 | if (ptm_cb.ptm_sock == -1) { | |
684 | ptm_cb.t_timer = NULL; | |
685 | thread_add_timer(zebrad.master, zebra_ptm_connect, NULL, | |
686 | ptm_cb.reconnect_time, &ptm_cb.t_timer); | |
8068a649 | 687 | return; |
d62a17ae | 688 | } |
689 | ||
690 | ptm_lib_init_msg(ptm_hdl, 0, PTMLIB_MSG_TYPE_CMD, NULL, &out_ctxt); | |
691 | sprintf(tmp_buf, "%s", ZEBRA_PTM_BFD_START_CMD); | |
692 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_CMD_STR, tmp_buf); | |
693 | sprintf(tmp_buf, "%s", zebra_route_string(client->proto)); | |
694 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_CLIENT_FIELD, | |
695 | tmp_buf); | |
696 | ||
1002497a | 697 | s = msg; |
d62a17ae | 698 | |
ec93aa12 | 699 | STREAM_GETL(s, pid); |
d62a17ae | 700 | sprintf(tmp_buf, "%d", pid); |
701 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_SEQID_FIELD, | |
702 | tmp_buf); | |
703 | ||
ec93aa12 | 704 | STREAM_GETW(s, dst_p.family); |
d62a17ae | 705 | |
706 | if (dst_p.family == AF_INET) | |
707 | dst_p.prefixlen = IPV4_MAX_BYTELEN; | |
708 | else | |
709 | dst_p.prefixlen = IPV6_MAX_BYTELEN; | |
710 | ||
ec93aa12 | 711 | STREAM_GET(&dst_p.u.prefix, s, dst_p.prefixlen); |
d62a17ae | 712 | if (dst_p.family == AF_INET) { |
713 | inet_ntop(AF_INET, &dst_p.u.prefix4, buf, sizeof(buf)); | |
714 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
715 | ZEBRA_PTM_BFD_DST_IP_FIELD, buf); | |
716 | } else { | |
717 | inet_ntop(AF_INET6, &dst_p.u.prefix6, buf, sizeof(buf)); | |
718 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
719 | ZEBRA_PTM_BFD_DST_IP_FIELD, buf); | |
720 | } | |
721 | ||
ec93aa12 | 722 | STREAM_GETL(s, min_rx_timer); |
d62a17ae | 723 | sprintf(tmp_buf, "%d", min_rx_timer); |
724 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_MIN_RX_FIELD, | |
725 | tmp_buf); | |
ec93aa12 | 726 | STREAM_GETL(s, min_tx_timer); |
d62a17ae | 727 | sprintf(tmp_buf, "%d", min_tx_timer); |
728 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_MIN_TX_FIELD, | |
729 | tmp_buf); | |
ec93aa12 | 730 | STREAM_GETC(s, detect_mul); |
d62a17ae | 731 | sprintf(tmp_buf, "%d", detect_mul); |
732 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_DETECT_MULT_FIELD, | |
733 | tmp_buf); | |
734 | ||
ec93aa12 | 735 | STREAM_GETC(s, multi_hop); |
d62a17ae | 736 | if (multi_hop) { |
737 | sprintf(tmp_buf, "%d", 1); | |
738 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
739 | ZEBRA_PTM_BFD_MULTI_HOP_FIELD, tmp_buf); | |
ec93aa12 | 740 | STREAM_GETW(s, src_p.family); |
d62a17ae | 741 | |
742 | if (src_p.family == AF_INET) | |
743 | src_p.prefixlen = IPV4_MAX_BYTELEN; | |
744 | else | |
745 | src_p.prefixlen = IPV6_MAX_BYTELEN; | |
746 | ||
ec93aa12 | 747 | STREAM_GET(&src_p.u.prefix, s, src_p.prefixlen); |
d62a17ae | 748 | if (src_p.family == AF_INET) { |
749 | inet_ntop(AF_INET, &src_p.u.prefix4, buf, sizeof(buf)); | |
750 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
751 | ZEBRA_PTM_BFD_SRC_IP_FIELD, buf); | |
752 | } else { | |
753 | inet_ntop(AF_INET6, &src_p.u.prefix6, buf, sizeof(buf)); | |
754 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
755 | ZEBRA_PTM_BFD_SRC_IP_FIELD, buf); | |
756 | } | |
757 | ||
ec93aa12 | 758 | STREAM_GETC(s, multi_hop_cnt); |
d62a17ae | 759 | sprintf(tmp_buf, "%d", multi_hop_cnt); |
760 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
761 | ZEBRA_PTM_BFD_MAX_HOP_CNT_FIELD, tmp_buf); | |
762 | ||
763 | if (zvrf_id(zvrf) != VRF_DEFAULT) | |
764 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
765 | ZEBRA_PTM_BFD_VRF_NAME_FIELD, | |
766 | zvrf_name(zvrf)); | |
767 | } else { | |
768 | if (dst_p.family == AF_INET6) { | |
ec93aa12 | 769 | STREAM_GETW(s, src_p.family); |
d62a17ae | 770 | |
771 | if (src_p.family == AF_INET) | |
772 | src_p.prefixlen = IPV4_MAX_BYTELEN; | |
773 | else | |
774 | src_p.prefixlen = IPV6_MAX_BYTELEN; | |
775 | ||
ec93aa12 | 776 | STREAM_GET(&src_p.u.prefix, s, src_p.prefixlen); |
d62a17ae | 777 | if (src_p.family == AF_INET) { |
778 | inet_ntop(AF_INET, &src_p.u.prefix4, buf, | |
779 | sizeof(buf)); | |
780 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
781 | ZEBRA_PTM_BFD_SRC_IP_FIELD, | |
782 | buf); | |
783 | } else { | |
784 | inet_ntop(AF_INET6, &src_p.u.prefix6, buf, | |
785 | sizeof(buf)); | |
786 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
787 | ZEBRA_PTM_BFD_SRC_IP_FIELD, | |
788 | buf); | |
789 | } | |
790 | } | |
ec93aa12 DS |
791 | STREAM_GETC(s, len); |
792 | STREAM_GET(if_name, s, len); | |
d62a17ae | 793 | if_name[len] = '\0'; |
794 | ||
795 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
796 | ZEBRA_PTM_BFD_IFNAME_FIELD, if_name); | |
797 | } | |
798 | ||
799 | sprintf(tmp_buf, "%d", 1); | |
800 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_SEND_EVENT, | |
801 | tmp_buf); | |
802 | ||
803 | ptm_lib_complete_msg(ptm_hdl, out_ctxt, ptm_cb.out_data, &data_len); | |
804 | ||
805 | if (IS_ZEBRA_DEBUG_SEND) | |
806 | zlog_debug("%s: Sent message (%d) %s", __func__, data_len, | |
807 | ptm_cb.out_data); | |
808 | zebra_ptm_send_message(ptm_cb.out_data, data_len); | |
ec93aa12 | 809 | |
8068a649 | 810 | return; |
9cc46248 | 811 | |
ec93aa12 | 812 | stream_failure: |
a928d464 | 813 | ptm_lib_cleanup_msg(ptm_hdl, out_ctxt); |
c43ed2e4 DS |
814 | } |
815 | ||
816 | /* BFD peer/dst deregister */ | |
89f4e507 | 817 | void zebra_ptm_bfd_dst_deregister(ZAPI_HANDLER_ARGS) |
c43ed2e4 | 818 | { |
d62a17ae | 819 | struct stream *s; |
820 | struct prefix src_p; | |
821 | struct prefix dst_p; | |
d7c0a89a | 822 | uint8_t multi_hop; |
d62a17ae | 823 | char if_name[INTERFACE_NAMSIZ]; |
d7c0a89a | 824 | uint8_t len; |
d62a17ae | 825 | char buf[INET6_ADDRSTRLEN]; |
826 | char tmp_buf[64]; | |
827 | int data_len = ZEBRA_PTM_SEND_MAX_SOCKBUF; | |
828 | void *out_ctxt; | |
829 | unsigned int pid; | |
830 | ||
831 | client->bfd_peer_del_cnt++; | |
832 | ||
833 | if (IS_ZEBRA_DEBUG_EVENT) | |
834 | zlog_debug("bfd_dst_deregister msg from client %s: length=%d", | |
89f4e507 | 835 | zebra_route_string(client->proto), hdr->length); |
d62a17ae | 836 | |
837 | if (ptm_cb.ptm_sock == -1) { | |
838 | ptm_cb.t_timer = NULL; | |
839 | thread_add_timer(zebrad.master, zebra_ptm_connect, NULL, | |
840 | ptm_cb.reconnect_time, &ptm_cb.t_timer); | |
8068a649 | 841 | return; |
d62a17ae | 842 | } |
843 | ||
844 | ptm_lib_init_msg(ptm_hdl, 0, PTMLIB_MSG_TYPE_CMD, NULL, &out_ctxt); | |
845 | ||
846 | sprintf(tmp_buf, "%s", ZEBRA_PTM_BFD_STOP_CMD); | |
847 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_CMD_STR, tmp_buf); | |
848 | ||
849 | sprintf(tmp_buf, "%s", zebra_route_string(client->proto)); | |
850 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_CLIENT_FIELD, | |
851 | tmp_buf); | |
852 | ||
1002497a | 853 | s = msg; |
d62a17ae | 854 | |
ec93aa12 | 855 | STREAM_GETL(s, pid); |
d62a17ae | 856 | sprintf(tmp_buf, "%d", pid); |
857 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_SEQID_FIELD, | |
858 | tmp_buf); | |
859 | ||
ec93aa12 | 860 | STREAM_GETW(s, dst_p.family); |
d62a17ae | 861 | |
862 | if (dst_p.family == AF_INET) | |
863 | dst_p.prefixlen = IPV4_MAX_BYTELEN; | |
864 | else | |
865 | dst_p.prefixlen = IPV6_MAX_BYTELEN; | |
866 | ||
ec93aa12 | 867 | STREAM_GET(&dst_p.u.prefix, s, dst_p.prefixlen); |
d62a17ae | 868 | if (dst_p.family == AF_INET) |
869 | inet_ntop(AF_INET, &dst_p.u.prefix4, buf, sizeof(buf)); | |
870 | else | |
871 | inet_ntop(AF_INET6, &dst_p.u.prefix6, buf, sizeof(buf)); | |
872 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_DST_IP_FIELD, buf); | |
873 | ||
874 | ||
ec93aa12 | 875 | STREAM_GETC(s, multi_hop); |
d62a17ae | 876 | if (multi_hop) { |
877 | sprintf(tmp_buf, "%d", 1); | |
878 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
879 | ZEBRA_PTM_BFD_MULTI_HOP_FIELD, tmp_buf); | |
880 | ||
ec93aa12 | 881 | STREAM_GETW(s, src_p.family); |
d62a17ae | 882 | |
883 | if (src_p.family == AF_INET) | |
884 | src_p.prefixlen = IPV4_MAX_BYTELEN; | |
885 | else | |
886 | src_p.prefixlen = IPV6_MAX_BYTELEN; | |
887 | ||
ec93aa12 | 888 | STREAM_GET(&src_p.u.prefix, s, src_p.prefixlen); |
d62a17ae | 889 | if (src_p.family == AF_INET) |
890 | inet_ntop(AF_INET, &src_p.u.prefix4, buf, sizeof(buf)); | |
891 | else | |
892 | inet_ntop(AF_INET6, &src_p.u.prefix6, buf, sizeof(buf)); | |
893 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
894 | ZEBRA_PTM_BFD_SRC_IP_FIELD, buf); | |
895 | ||
896 | if (zvrf_id(zvrf) != VRF_DEFAULT) | |
897 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
898 | ZEBRA_PTM_BFD_VRF_NAME_FIELD, | |
899 | zvrf_name(zvrf)); | |
900 | } else { | |
901 | if (dst_p.family == AF_INET6) { | |
ec93aa12 | 902 | STREAM_GETW(s, src_p.family); |
d62a17ae | 903 | |
904 | if (src_p.family == AF_INET) | |
905 | src_p.prefixlen = IPV4_MAX_BYTELEN; | |
906 | else | |
907 | src_p.prefixlen = IPV6_MAX_BYTELEN; | |
908 | ||
ec93aa12 | 909 | STREAM_GET(&src_p.u.prefix, s, src_p.prefixlen); |
d62a17ae | 910 | if (src_p.family == AF_INET) { |
911 | inet_ntop(AF_INET, &src_p.u.prefix4, buf, | |
912 | sizeof(buf)); | |
913 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
914 | ZEBRA_PTM_BFD_SRC_IP_FIELD, | |
915 | buf); | |
916 | } else { | |
917 | inet_ntop(AF_INET6, &src_p.u.prefix6, buf, | |
918 | sizeof(buf)); | |
919 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
920 | ZEBRA_PTM_BFD_SRC_IP_FIELD, | |
921 | buf); | |
922 | } | |
923 | } | |
924 | ||
ec93aa12 DS |
925 | STREAM_GETC(s, len); |
926 | STREAM_GET(if_name, s, len); | |
d62a17ae | 927 | if_name[len] = '\0'; |
928 | ||
929 | ptm_lib_append_msg(ptm_hdl, out_ctxt, | |
930 | ZEBRA_PTM_BFD_IFNAME_FIELD, if_name); | |
931 | } | |
932 | ||
933 | ptm_lib_complete_msg(ptm_hdl, out_ctxt, ptm_cb.out_data, &data_len); | |
934 | if (IS_ZEBRA_DEBUG_SEND) | |
935 | zlog_debug("%s: Sent message (%d) %s", __func__, data_len, | |
936 | ptm_cb.out_data); | |
937 | ||
938 | zebra_ptm_send_message(ptm_cb.out_data, data_len); | |
ec93aa12 | 939 | |
8068a649 | 940 | return; |
9cc46248 | 941 | |
ec93aa12 | 942 | stream_failure: |
a928d464 | 943 | ptm_lib_cleanup_msg(ptm_hdl, out_ctxt); |
c01acf98 | 944 | } |
c8ed14dd | 945 | |
055c4dfc | 946 | /* BFD client register */ |
89f4e507 | 947 | void zebra_ptm_bfd_client_register(ZAPI_HANDLER_ARGS) |
055c4dfc | 948 | { |
d62a17ae | 949 | struct stream *s; |
950 | unsigned int pid; | |
9cc46248 | 951 | void *out_ctxt = NULL; |
d62a17ae | 952 | char tmp_buf[64]; |
953 | int data_len = ZEBRA_PTM_SEND_MAX_SOCKBUF; | |
055c4dfc | 954 | |
d62a17ae | 955 | client->bfd_client_reg_cnt++; |
055c4dfc | 956 | |
d62a17ae | 957 | if (IS_ZEBRA_DEBUG_EVENT) |
958 | zlog_debug("bfd_client_register msg from client %s: length=%d", | |
89f4e507 | 959 | zebra_route_string(client->proto), hdr->length); |
055c4dfc | 960 | |
1002497a | 961 | s = msg; |
ec93aa12 | 962 | STREAM_GETL(s, pid); |
bf6e101c | 963 | |
d62a17ae | 964 | if (ptm_cb.ptm_sock == -1) { |
965 | ptm_cb.t_timer = NULL; | |
966 | thread_add_timer(zebrad.master, zebra_ptm_connect, NULL, | |
967 | ptm_cb.reconnect_time, &ptm_cb.t_timer); | |
8068a649 | 968 | return; |
d62a17ae | 969 | } |
055c4dfc | 970 | |
d62a17ae | 971 | ptm_lib_init_msg(ptm_hdl, 0, PTMLIB_MSG_TYPE_CMD, NULL, &out_ctxt); |
055c4dfc | 972 | |
d62a17ae | 973 | sprintf(tmp_buf, "%s", ZEBRA_PTM_BFD_CLIENT_REG_CMD); |
974 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_CMD_STR, tmp_buf); | |
055c4dfc | 975 | |
d62a17ae | 976 | sprintf(tmp_buf, "%s", zebra_route_string(client->proto)); |
977 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_CLIENT_FIELD, | |
978 | tmp_buf); | |
055c4dfc | 979 | |
d62a17ae | 980 | sprintf(tmp_buf, "%d", pid); |
981 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_SEQID_FIELD, | |
982 | tmp_buf); | |
055c4dfc | 983 | |
d62a17ae | 984 | ptm_lib_complete_msg(ptm_hdl, out_ctxt, ptm_cb.out_data, &data_len); |
055c4dfc | 985 | |
d62a17ae | 986 | if (IS_ZEBRA_DEBUG_SEND) |
987 | zlog_debug("%s: Sent message (%d) %s", __func__, data_len, | |
988 | ptm_cb.out_data); | |
989 | zebra_ptm_send_message(ptm_cb.out_data, data_len); | |
2376c3f2 | 990 | |
d62a17ae | 991 | SET_FLAG(ptm_cb.client_flags[client->proto], |
992 | ZEBRA_PTM_BFD_CLIENT_FLAG_REG); | |
9cc46248 | 993 | |
8068a649 | 994 | return; |
9cc46248 | 995 | |
ec93aa12 | 996 | stream_failure: |
6447dbb3 DS |
997 | /* |
998 | * IF we ever add more STREAM_GETXXX functions after the out_ctxt | |
999 | * is allocated then we need to add this code back in | |
1000 | * | |
1001 | * if (out_ctxt) | |
1002 | * ptm_lib_cleanup_msg(ptm_hdl, out_ctxt); | |
1003 | */ | |
8068a649 | 1004 | return; |
055c4dfc | 1005 | } |
1006 | ||
567b877d | 1007 | /* BFD client deregister */ |
453844ab | 1008 | int zebra_ptm_bfd_client_deregister(struct zserv *client) |
567b877d | 1009 | { |
453844ab | 1010 | uint8_t proto = client->proto; |
d62a17ae | 1011 | void *out_ctxt; |
1012 | char tmp_buf[64]; | |
1013 | int data_len = ZEBRA_PTM_SEND_MAX_SOCKBUF; | |
567b877d | 1014 | |
d62a17ae | 1015 | if (proto != ZEBRA_ROUTE_OSPF && proto != ZEBRA_ROUTE_BGP |
1016 | && proto != ZEBRA_ROUTE_OSPF6 && proto != ZEBRA_ROUTE_PIM) | |
453844ab | 1017 | return 0; |
567b877d | 1018 | |
d62a17ae | 1019 | if (IS_ZEBRA_DEBUG_EVENT) |
1020 | zlog_err("bfd_client_deregister msg for client %s", | |
1021 | zebra_route_string(proto)); | |
567b877d | 1022 | |
d62a17ae | 1023 | if (ptm_cb.ptm_sock == -1) { |
1024 | ptm_cb.t_timer = NULL; | |
1025 | thread_add_timer(zebrad.master, zebra_ptm_connect, NULL, | |
1026 | ptm_cb.reconnect_time, &ptm_cb.t_timer); | |
453844ab | 1027 | return 0; |
d62a17ae | 1028 | } |
567b877d | 1029 | |
d62a17ae | 1030 | ptm_lib_init_msg(ptm_hdl, 0, PTMLIB_MSG_TYPE_CMD, NULL, &out_ctxt); |
567b877d | 1031 | |
d62a17ae | 1032 | sprintf(tmp_buf, "%s", ZEBRA_PTM_BFD_CLIENT_DEREG_CMD); |
1033 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_CMD_STR, tmp_buf); | |
567b877d | 1034 | |
d62a17ae | 1035 | sprintf(tmp_buf, "%s", zebra_route_string(proto)); |
1036 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_BFD_CLIENT_FIELD, | |
1037 | tmp_buf); | |
567b877d | 1038 | |
d62a17ae | 1039 | ptm_lib_complete_msg(ptm_hdl, out_ctxt, ptm_cb.out_data, &data_len); |
567b877d | 1040 | |
d62a17ae | 1041 | if (IS_ZEBRA_DEBUG_SEND) |
1042 | zlog_debug("%s: Sent message (%d) %s", __func__, data_len, | |
1043 | ptm_cb.out_data); | |
2376c3f2 | 1044 | |
d62a17ae | 1045 | zebra_ptm_send_message(ptm_cb.out_data, data_len); |
1046 | UNSET_FLAG(ptm_cb.client_flags[proto], ZEBRA_PTM_BFD_CLIENT_FLAG_REG); | |
453844ab QY |
1047 | |
1048 | return 0; | |
567b877d | 1049 | } |
1050 | ||
d62a17ae | 1051 | int zebra_ptm_get_enable_state(void) |
c8ed14dd | 1052 | { |
d62a17ae | 1053 | return ptm_cb.ptm_enable; |
c8ed14dd | 1054 | } |
950bd436 | 1055 | |
1056 | /* | |
1057 | * zebra_ptm_get_status_str - Convert status to a display string. | |
1058 | */ | |
d62a17ae | 1059 | static const char *zebra_ptm_get_status_str(int status) |
950bd436 | 1060 | { |
d62a17ae | 1061 | switch (status) { |
1062 | case ZEBRA_PTM_STATUS_DOWN: | |
1063 | return "fail"; | |
1064 | case ZEBRA_PTM_STATUS_UP: | |
1065 | return "pass"; | |
1066 | case ZEBRA_PTM_STATUS_UNKNOWN: | |
1067 | default: | |
1068 | return "n/a"; | |
1069 | } | |
950bd436 | 1070 | } |
1071 | ||
d62a17ae | 1072 | void zebra_ptm_show_status(struct vty *vty, struct interface *ifp) |
950bd436 | 1073 | { |
d62a17ae | 1074 | vty_out(vty, " PTM status: "); |
1075 | if (ifp->ptm_enable) { | |
1076 | vty_out(vty, "%s\n", zebra_ptm_get_status_str(ifp->ptm_status)); | |
1077 | } else { | |
1078 | vty_out(vty, "disabled\n"); | |
1079 | } | |
950bd436 | 1080 | } |
1081 | ||
d62a17ae | 1082 | void zebra_ptm_send_status_req(void) |
950bd436 | 1083 | { |
d62a17ae | 1084 | void *out_ctxt; |
1085 | int len = ZEBRA_PTM_SEND_MAX_SOCKBUF; | |
1086 | ||
1087 | if (ptm_cb.ptm_enable) { | |
1088 | ptm_lib_init_msg(ptm_hdl, 0, PTMLIB_MSG_TYPE_CMD, NULL, | |
1089 | &out_ctxt); | |
1090 | ptm_lib_append_msg(ptm_hdl, out_ctxt, ZEBRA_PTM_CMD_STR, | |
1091 | ZEBRA_PTM_GET_STATUS_CMD); | |
1092 | ptm_lib_complete_msg(ptm_hdl, out_ctxt, ptm_cb.out_data, &len); | |
1093 | ||
1094 | zebra_ptm_send_message(ptm_cb.out_data, len); | |
1095 | } | |
950bd436 | 1096 | } |
1097 | ||
d62a17ae | 1098 | void zebra_ptm_reset_status(int ptm_disable) |
950bd436 | 1099 | { |
d62a17ae | 1100 | struct vrf *vrf; |
d62a17ae | 1101 | struct interface *ifp; |
1102 | int send_linkup; | |
1103 | ||
a2addae8 | 1104 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) |
451fda4f | 1105 | FOR_ALL_INTERFACES (vrf, ifp) { |
a2addae8 RW |
1106 | send_linkup = 0; |
1107 | if (ifp->ptm_enable) { | |
1108 | if (!if_is_operative(ifp)) | |
1109 | send_linkup = 1; | |
1110 | ||
1111 | if (ptm_disable) | |
1112 | ifp->ptm_enable = | |
1113 | ZEBRA_IF_PTM_ENABLE_OFF; | |
1114 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; | |
1115 | ||
1116 | if (if_is_operative(ifp) && send_linkup) { | |
1117 | if (IS_ZEBRA_DEBUG_EVENT) | |
1118 | zlog_debug( | |
1119 | "%s: Bringing up interface %s", | |
1120 | __func__, ifp->name); | |
1121 | if_up(ifp); | |
1122 | } | |
d62a17ae | 1123 | } |
1124 | } | |
950bd436 | 1125 | } |
986aa00f | 1126 | |
d62a17ae | 1127 | void zebra_ptm_if_init(struct zebra_if *zebra_ifp) |
986aa00f | 1128 | { |
d62a17ae | 1129 | zebra_ifp->ptm_enable = ZEBRA_IF_PTM_ENABLE_UNSPEC; |
986aa00f | 1130 | } |
1131 | ||
d62a17ae | 1132 | void zebra_ptm_if_set_ptm_state(struct interface *ifp, |
1133 | struct zebra_if *zebra_ifp) | |
986aa00f | 1134 | { |
d62a17ae | 1135 | if (zebra_ifp && zebra_ifp->ptm_enable != ZEBRA_IF_PTM_ENABLE_UNSPEC) |
1136 | ifp->ptm_enable = zebra_ifp->ptm_enable; | |
986aa00f | 1137 | } |
1138 | ||
d62a17ae | 1139 | void zebra_ptm_if_write(struct vty *vty, struct zebra_if *zebra_ifp) |
986aa00f | 1140 | { |
d62a17ae | 1141 | if (zebra_ifp->ptm_enable == ZEBRA_IF_PTM_ENABLE_OFF) |
1142 | vty_out(vty, " no ptm-enable\n"); | |
986aa00f | 1143 | } |