corosync  3.1.2
totemconfig.c
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1 /*
2  * Copyright (c) 2002-2005 MontaVista Software, Inc.
3  * Copyright (c) 2006-2019 Red Hat, Inc.
4  *
5  * All rights reserved.
6  *
7  * Author: Steven Dake (sdake@redhat.com)
8  * Jan Friesse (jfriesse@redhat.com)
9  * Chrissie Caulfield (ccaulfie@redhat.com)
10  *
11  * This software licensed under BSD license, the text of which follows:
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions are met:
15  *
16  * - Redistributions of source code must retain the above copyright notice,
17  * this list of conditions and the following disclaimer.
18  * - Redistributions in binary form must reproduce the above copyright notice,
19  * this list of conditions and the following disclaimer in the documentation
20  * and/or other materials provided with the distribution.
21  * - Neither the name of the MontaVista Software, Inc. nor the names of its
22  * contributors may be used to endorse or promote products derived from this
23  * software without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
29  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
35  * THE POSSIBILITY OF SUCH DAMAGE.
36  */
37 
38 #include <config.h>
39 
40 #include <stdio.h>
41 #include <string.h>
42 #include <stdlib.h>
43 #include <errno.h>
44 #include <unistd.h>
45 #include <sys/socket.h>
46 #include <sys/types.h>
47 #include <sys/stat.h>
48 #include <fcntl.h>
49 #include <ifaddrs.h>
50 #include <netdb.h>
51 #include <netinet/in.h>
52 #include <arpa/inet.h>
53 #include <sys/param.h>
54 #include <sys/utsname.h>
55 
56 #include <corosync/swab.h>
57 #include <qb/qblist.h>
58 #include <qb/qbdefs.h>
59 #include <libknet.h>
60 #include <corosync/totem/totem.h>
61 #include <corosync/config.h>
62 #include <corosync/logsys.h>
63 #include <corosync/icmap.h>
64 
65 #include "util.h"
66 #include "totemconfig.h"
67 
68 #define TOKEN_RETRANSMITS_BEFORE_LOSS_CONST 4
69 #define TOKEN_TIMEOUT 3000
70 #define TOKEN_WARNING 75
71 #define TOKEN_COEFFICIENT 650
72 #define JOIN_TIMEOUT 50
73 #define MERGE_TIMEOUT 200
74 #define DOWNCHECK_TIMEOUT 1000
75 #define FAIL_TO_RECV_CONST 2500
76 #define SEQNO_UNCHANGED_CONST 30
77 #define MINIMUM_TIMEOUT (int)(1000/HZ)*3
78 #define MINIMUM_TIMEOUT_HOLD (int)(MINIMUM_TIMEOUT * 0.8 - (1000/HZ))
79 #define MAX_NETWORK_DELAY 50
80 #define WINDOW_SIZE 50
81 #define MAX_MESSAGES 17
82 #define MISS_COUNT_CONST 5
83 #define BLOCK_UNLISTED_IPS 1
84 /* This constant is not used for knet */
85 #define UDP_NETMTU 1500
86 
87 /* Currently all but PONG_COUNT match the defaults in libknet.h */
88 #define KNET_PING_INTERVAL 1000
89 #define KNET_PING_TIMEOUT 2000
90 #define KNET_PING_PRECISION 2048
91 #define KNET_PONG_COUNT 2
92 #define KNET_PMTUD_INTERVAL 30
93 #define KNET_DEFAULT_TRANSPORT KNET_TRANSPORT_UDP
94 
95 #define DEFAULT_PORT 5405
96 
97 static char error_string_response[768];
98 
99 static void add_totem_config_notification(struct totem_config *totem_config);
100 
101 static void *totem_get_param_by_name(struct totem_config *totem_config, const char *param_name)
102 {
103  if (strcmp(param_name, "totem.token") == 0)
104  return &totem_config->token_timeout;
105  if (strcmp(param_name, "totem.token_warning") == 0)
106  return &totem_config->token_warning;
107  if (strcmp(param_name, "totem.token_retransmit") == 0)
109  if (strcmp(param_name, "totem.hold") == 0)
111  if (strcmp(param_name, "totem.token_retransmits_before_loss_const") == 0)
113  if (strcmp(param_name, "totem.join") == 0)
114  return &totem_config->join_timeout;
115  if (strcmp(param_name, "totem.send_join") == 0)
117  if (strcmp(param_name, "totem.consensus") == 0)
119  if (strcmp(param_name, "totem.merge") == 0)
120  return &totem_config->merge_timeout;
121  if (strcmp(param_name, "totem.downcheck") == 0)
123  if (strcmp(param_name, "totem.fail_recv_const") == 0)
125  if (strcmp(param_name, "totem.seqno_unchanged_const") == 0)
127  if (strcmp(param_name, "totem.heartbeat_failures_allowed") == 0)
129  if (strcmp(param_name, "totem.max_network_delay") == 0)
131  if (strcmp(param_name, "totem.window_size") == 0)
132  return &totem_config->window_size;
133  if (strcmp(param_name, "totem.max_messages") == 0)
134  return &totem_config->max_messages;
135  if (strcmp(param_name, "totem.miss_count_const") == 0)
137  if (strcmp(param_name, "totem.knet_pmtud_interval") == 0)
139  if (strcmp(param_name, "totem.knet_compression_threshold") == 0)
141  if (strcmp(param_name, "totem.knet_compression_level") == 0)
143  if (strcmp(param_name, "totem.knet_compression_model") == 0)
145  if (strcmp(param_name, "totem.block_unlisted_ips") == 0)
147 
148  return NULL;
149 }
150 
151 /*
152  * Read key_name from icmap. If key is not found or key_name == delete_key or if allow_zero is false
153  * and readed value is zero, default value is used and stored into totem_config.
154  */
155 static void totem_volatile_config_set_uint32_value (struct totem_config *totem_config, icmap_map_t map,
156  const char *key_name, const char *deleted_key, unsigned int default_value,
157  int allow_zero_value)
158 {
159  char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
160 
161  if (icmap_get_uint32_r(map, key_name, totem_get_param_by_name(totem_config, key_name)) != CS_OK ||
162  (deleted_key != NULL && strcmp(deleted_key, key_name) == 0) ||
163  (!allow_zero_value && *(uint32_t *)totem_get_param_by_name(totem_config, key_name) == 0)) {
164  *(uint32_t *)totem_get_param_by_name(totem_config, key_name) = default_value;
165  }
166 
167  /*
168  * Store totem_config value to cmap runtime section
169  */
170  if (strlen("runtime.config.") + strlen(key_name) >= ICMAP_KEYNAME_MAXLEN) {
171  /*
172  * This shouldn't happen
173  */
174  return ;
175  }
176 
177  strcpy(runtime_key_name, "runtime.config.");
178  strcat(runtime_key_name, key_name);
179 
180  icmap_set_uint32_r(map, runtime_key_name, *(uint32_t *)totem_get_param_by_name(totem_config, key_name));
181 }
182 
183 static void totem_volatile_config_set_int32_value (struct totem_config *totem_config, icmap_map_t map,
184  const char *key_name, const char *deleted_key, int default_value,
185  int allow_zero_value)
186 {
187  char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
188 
189  if (icmap_get_int32_r(map, key_name, totem_get_param_by_name(totem_config, key_name)) != CS_OK ||
190  (deleted_key != NULL && strcmp(deleted_key, key_name) == 0) ||
191  (!allow_zero_value && *(int32_t *)totem_get_param_by_name(totem_config, key_name) == 0)) {
192  *(int32_t *)totem_get_param_by_name(totem_config, key_name) = default_value;
193  }
194 
195  /*
196  * Store totem_config value to cmap runtime section
197  */
198  if (strlen("runtime.config.") + strlen(key_name) >= ICMAP_KEYNAME_MAXLEN) {
199  /*
200  * This shouldn't happen
201  */
202  return ;
203  }
204 
205  strcpy(runtime_key_name, "runtime.config.");
206  strcat(runtime_key_name, key_name);
207 
208  icmap_set_int32_r(map, runtime_key_name, *(int32_t *)totem_get_param_by_name(totem_config, key_name));
209 }
210 
211 static void totem_volatile_config_set_string_value (struct totem_config *totem_config, icmap_map_t map,
212  const char *key_name, const char *deleted_key, const char *default_value)
213 {
214  char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
215  int res;
216  char *new_config_value;
217  const void *config_value;
218 
219  config_value = totem_get_param_by_name(totem_config, key_name);
220 
221  res = icmap_get_string_r(map, key_name, (char **)&new_config_value);
222  if (res != CS_OK ||
223  (deleted_key != NULL && strcmp(deleted_key, key_name) == 0)) {
224 
225  /* Slightly pointless use of strncpy but it keeps coverity happy */
226  strncpy((char *)config_value, default_value, CONFIG_STRING_LEN_MAX);
227  } else {
228  strncpy((char *)config_value, new_config_value, CONFIG_STRING_LEN_MAX);
229  }
230  if (res == CS_OK) {
231  free(new_config_value);
232  }
233 
234  /*
235  * Store totem_config value to cmap runtime section
236  */
237  if (strlen("runtime.config.") + strlen(key_name) >= ICMAP_KEYNAME_MAXLEN) {
238  /*
239  * This shouldn't happen
240  */
241  return ;
242  }
243 
244  strcpy(runtime_key_name, "runtime.config.");
245  strcat(runtime_key_name, key_name);
246 
247  (void)icmap_set_string_r(map, runtime_key_name, (char *)config_value);
248 }
249 
250 /*
251  * Read string value stored in key_name from icmap, use it as a boolean (yes/no) type, convert it
252  * to integer value (1/0) and store into totem_config.
253  *
254  * If key is not found or key_name == delete_key default value is used
255  * and stored into totem_config.
256  */
257 static void totem_volatile_config_set_boolean_value (struct totem_config *totem_config, icmap_map_t map,
258  const char *key_name, const char *deleted_key, unsigned int default_value)
259 {
260  char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
261  char *str;
262  int val;
263 
264  str = NULL;
265  val = default_value;
266 
267  if ((deleted_key != NULL && strcmp(deleted_key, key_name) == 0) ||
268  (icmap_get_string_r(map, key_name, &str) != CS_OK)) {
269  /*
270  * Do nothing. str is NULL (icmap_get_string ether not called or
271  * not changed str).
272  */
273  } else {
274  if (strcmp(str, "yes") == 0) {
275  val = 1;
276  } else if (strcmp(str, "no") == 0) {
277  val = 0;
278  }
279  free(str);
280  }
281 
282  /*
283  * Store totem_config value to cmap runtime section
284  */
285  if (strlen("runtime.config.") + strlen(key_name) >= ICMAP_KEYNAME_MAXLEN) {
286  /*
287  * This shouldn't happen
288  */
289  return ;
290  }
291 
292  strcpy(runtime_key_name, "runtime.config.");
293  strcat(runtime_key_name, key_name);
294 
295  *(uint32_t *)totem_get_param_by_name(totem_config, key_name) = val;
296 
297  icmap_set_uint32_r(map, runtime_key_name, val);
298 }
299 
300 /*
301  * Read and validate config values from cmap and store them into totem_config. If key doesn't exists,
302  * default value is stored. deleted_key is name of key beeing processed by delete operation
303  * from cmap. It is considered as non existing even if it can be read. Can be NULL.
304  */
305 void totem_volatile_config_read (struct totem_config *totem_config, icmap_map_t temp_map, const char *deleted_key)
306 {
307  uint32_t u32;
308 
309  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.token_retransmits_before_loss_const", deleted_key,
311 
312  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.token", deleted_key, TOKEN_TIMEOUT, 0);
313 
314  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.token_warning", deleted_key, TOKEN_WARNING, 1);
315 
316  if (totem_config->interfaces[0].member_count > 2) {
317  u32 = TOKEN_COEFFICIENT;
318  icmap_get_uint32_r(temp_map, "totem.token_coefficient", &u32);
320 
321  /*
322  * Store totem_config value to cmap runtime section
323  */
324  icmap_set_uint32_r(temp_map, "runtime.config.totem.token", totem_config->token_timeout);
325  }
326 
327  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.max_network_delay", deleted_key, MAX_NETWORK_DELAY, 0);
328 
329  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.window_size", deleted_key, WINDOW_SIZE, 0);
330 
331  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.max_messages", deleted_key, MAX_MESSAGES, 0);
332 
333  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.miss_count_const", deleted_key, MISS_COUNT_CONST, 0);
334  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.knet_pmtud_interval", deleted_key, KNET_PMTUD_INTERVAL, 0);
335 
336  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.token_retransmit", deleted_key,
338 
339  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.hold", deleted_key,
340  (int)(totem_config->token_retransmit_timeout * 0.8 - (1000/HZ)), 0);
341 
342  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.join", deleted_key, JOIN_TIMEOUT, 0);
343 
344  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.consensus", deleted_key,
345  (int)(float)(1.2 * totem_config->token_timeout), 0);
346 
347  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.merge", deleted_key, MERGE_TIMEOUT, 0);
348 
349  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.downcheck", deleted_key, DOWNCHECK_TIMEOUT, 0);
350 
351  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.fail_recv_const", deleted_key, FAIL_TO_RECV_CONST, 0);
352 
353  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.seqno_unchanged_const", deleted_key,
355 
356  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.send_join", deleted_key, 0, 1);
357 
358  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.heartbeat_failures_allowed", deleted_key, 0, 1);
359 
360  totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.knet_compression_threshold", deleted_key, 0, 1);
361 
362  totem_volatile_config_set_int32_value(totem_config, temp_map, "totem.knet_compression_level", deleted_key, 0, 1);
363 
364  totem_volatile_config_set_string_value(totem_config, temp_map, "totem.knet_compression_model", deleted_key, "none");
365 
366  totem_volatile_config_set_boolean_value(totem_config, temp_map, "totem.block_unlisted_ips", deleted_key,
368 }
369 
371  struct totem_config *totem_config,
372  icmap_map_t temp_map,
373  const char **error_string)
374 {
375  /* Static just to keep them off the stack */
376  static char local_error_reason[512];
377  static char addr_str_buf[INET6_ADDRSTRLEN];
378  const char *error_reason = local_error_reason;
379  char name_key[ICMAP_KEYNAME_MAXLEN];
380  char *name_str;
381  int i, j, num_configured, members;
382  uint32_t tmp_config_value;
383 
385  snprintf (local_error_reason, sizeof(local_error_reason),
386  "The max_network_delay parameter (%d ms) may not be less than (%d ms).",
388  goto parse_error;
389  }
390 
392  snprintf (local_error_reason, sizeof(local_error_reason),
393  "The token timeout parameter (%d ms) may not be less than (%d ms).",
395  goto parse_error;
396  }
397 
399  snprintf (local_error_reason, sizeof(local_error_reason),
400  "The token warning parameter (%d%%) must be between 0 (disabled) and 100.",
402  goto parse_error;
403  }
404 
406  if (icmap_get_uint32_r(temp_map, "totem.token_retransmit", &tmp_config_value) == CS_OK) {
407  snprintf (local_error_reason, sizeof(local_error_reason),
408  "The token retransmit timeout parameter (%d ms) may not be less than (%d ms).",
410  goto parse_error;
411  } else {
412  snprintf (local_error_reason, sizeof(local_error_reason),
413  "Not appropriate token or token_retransmits_before_loss_const value set");
414  goto parse_error;
415  }
416  }
417 
419  snprintf (local_error_reason, sizeof(local_error_reason),
420  "The token hold timeout parameter (%d ms) may not be less than (%d ms).",
422  goto parse_error;
423  }
424 
426  snprintf (local_error_reason, sizeof(local_error_reason),
427  "The join timeout parameter (%d ms) may not be less than (%d ms).",
429  goto parse_error;
430  }
431 
433  snprintf (local_error_reason, sizeof(local_error_reason),
434  "The consensus timeout parameter (%d ms) may not be less than (%d ms).",
436  goto parse_error;
437  }
438 
440  snprintf (local_error_reason, sizeof(local_error_reason),
441  "The consensus timeout parameter (%d ms) may not be less than join timeout (%d ms).",
443  goto parse_error;
444  }
445 
447  snprintf (local_error_reason, sizeof(local_error_reason),
448  "The merge timeout parameter (%d ms) may not be less than (%d ms).",
450  goto parse_error;
451  }
452 
454  snprintf (local_error_reason, sizeof(local_error_reason),
455  "The downcheck timeout parameter (%d ms) may not be less than (%d ms).",
457  goto parse_error;
458  }
459 
460  /* Check that we have nodelist 'name' if there is more than one link */
461  num_configured = 0;
462  members = -1;
463  for (i = 0; i < INTERFACE_MAX; i++) {
465  if (num_configured == 0) {
466  members = totem_config->interfaces[i].member_count;
467  }
468  num_configured++;
469  }
470  }
471 
472  if (num_configured > 1) {
473  /*
474  * This assert is here just to make compiler happy
475  */
476  assert(members != -1);
477  for (i=0; i < members; i++) {
478  snprintf(name_key, sizeof(name_key), "nodelist.node.%d.name", i);
479 
480  if (icmap_get_string_r(temp_map, name_key, &name_str) != CS_OK) {
481  snprintf (local_error_reason, sizeof(local_error_reason),
482  "for a multi-link configuration, all nodes must have a 'name' attribute");
483  goto parse_error;
484  }
485 
486  free(name_str);
487  }
488 
489  for (i=0; i < INTERFACE_MAX; i++) {
491  continue;
492  }
493  if (totem_config->interfaces[i].member_count != members) {
494  snprintf (local_error_reason, sizeof(local_error_reason),
495  "Not all nodes have the same number of links");
496  goto parse_error;
497  }
498  }
499  }
500 
501  /* Verify that all nodes on the same link have the same IP family */
502  for (i=0; i < INTERFACE_MAX; i++) {
503  for (j=1; j<totem_config->interfaces[i].member_count; j++) {
507  memcpy(addr_str_buf,
509  sizeof(addr_str_buf));
510 
511  snprintf (local_error_reason, sizeof(local_error_reason),
512  "Nodes for link %d have different IP families "
513  "(compared %s with %s)", i,
514  addr_str_buf,
516  goto parse_error;
517  }
518  }
519  }
520  }
521 
522  return 0;
523 
524 parse_error:
525  snprintf (error_string_response, sizeof(error_string_response),
526  "parse error in config: %s\n", error_reason);
527  *error_string = error_string_response;
528  return (-1);
529 
530 }
531 
532 static int totem_get_crypto(struct totem_config *totem_config, icmap_map_t map, const char **error_string)
533 {
534  char *str;
535  const char *tmp_cipher;
536  const char *tmp_hash;
537  const char *tmp_model;
538 
539  tmp_hash = "none";
540  tmp_cipher = "none";
541  tmp_model = "none";
542 
543  if (icmap_get_string_r(map, "totem.crypto_model", &str) == CS_OK) {
544  if (strcmp(str, "nss") == 0) {
545  tmp_model = "nss";
546  }
547  if (strcmp(str, "openssl") == 0) {
548  tmp_model = "openssl";
549  }
550  free(str);
551  } else {
552  tmp_model = "nss";
553  }
554 
555  if (icmap_get_string_r(map, "totem.secauth", &str) == CS_OK) {
556  if (strcmp(str, "on") == 0) {
557  tmp_cipher = "aes256";
558  tmp_hash = "sha256";
559  }
560  free(str);
561  }
562 
563  if (icmap_get_string_r(map, "totem.crypto_cipher", &str) == CS_OK) {
564  if (strcmp(str, "none") == 0) {
565  tmp_cipher = "none";
566  }
567  if (strcmp(str, "aes256") == 0) {
568  tmp_cipher = "aes256";
569  }
570  if (strcmp(str, "aes192") == 0) {
571  tmp_cipher = "aes192";
572  }
573  if (strcmp(str, "aes128") == 0) {
574  tmp_cipher = "aes128";
575  }
576  free(str);
577  }
578 
579  if (icmap_get_string_r(map, "totem.crypto_hash", &str) == CS_OK) {
580  if (strcmp(str, "none") == 0) {
581  tmp_hash = "none";
582  }
583  if (strcmp(str, "md5") == 0) {
584  tmp_hash = "md5";
585  }
586  if (strcmp(str, "sha1") == 0) {
587  tmp_hash = "sha1";
588  }
589  if (strcmp(str, "sha256") == 0) {
590  tmp_hash = "sha256";
591  }
592  if (strcmp(str, "sha384") == 0) {
593  tmp_hash = "sha384";
594  }
595  if (strcmp(str, "sha512") == 0) {
596  tmp_hash = "sha512";
597  }
598  free(str);
599  }
600 
601  if ((strcmp(tmp_cipher, "none") != 0) &&
602  (strcmp(tmp_hash, "none") == 0)) {
603  *error_string = "crypto_cipher requires crypto_hash with value other than none";
604  return -1;
605  }
606 
607  if (strcmp(tmp_model, "none") == 0) {
608  *error_string = "crypto_model should be 'nss' or 'openssl'";
609  return -1;
610  }
611 
612  if (strcmp(tmp_cipher, totem_config->crypto_cipher_type) ||
613  strcmp(tmp_hash, totem_config->crypto_hash_type) ||
614  strcmp(tmp_model, totem_config->crypto_model)) {
616  }
617 
620  strncpy(totem_config->crypto_model, tmp_model, CONFIG_STRING_LEN_MAX);
621 
622  return 0;
623 }
624 
625 static int nodelist_byname(icmap_map_t map, const char *find_name, int strip_domain)
626 {
627  icmap_iter_t iter;
628  const char *iter_key;
629  char name_str[ICMAP_KEYNAME_MAXLEN];
630  int res = 0;
631  unsigned int node_pos;
632  char *name;
633  unsigned int namelen;
634 
635  iter = icmap_iter_init_r(map, "nodelist.node.");
636  while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
637  res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos, name_str);
638  if (res != 2) {
639  continue;
640  }
641  /* ring0_addr is allowed as a fallback */
642  if (strcmp(name_str, "name") && strcmp(name_str, "ring0_addr")) {
643  continue;
644  }
645  if (icmap_get_string_r(map, iter_key, &name) != CS_OK) {
646  continue;
647  }
648  namelen = strlen(name);
649 
650  if (strip_domain) {
651  char *dot;
652  dot = strchr(name, '.');
653  if (dot) {
654  namelen = dot - name;
655  }
656  }
657  if (strncmp(find_name, name, namelen) == 0 &&
658  strlen(find_name) == namelen) {
659  icmap_iter_finalize(iter);
660  return node_pos;
661  }
662  }
663  icmap_iter_finalize(iter);
664  return -1;
665 }
666 
667 /* Compare two addresses - only address part (sin_addr/sin6_addr) is checked */
668 static int ipaddr_equal(const struct sockaddr *addr1, const struct sockaddr *addr2)
669 {
670  int addrlen = 0;
671  const void *addr1p, *addr2p;
672 
673  if (addr1->sa_family != addr2->sa_family)
674  return 0;
675 
676  switch (addr1->sa_family) {
677  case AF_INET:
678  addrlen = sizeof(struct in_addr);
679  addr1p = &((struct sockaddr_in *)addr1)->sin_addr;
680  addr2p = &((struct sockaddr_in *)addr2)->sin_addr;
681  break;
682  case AF_INET6:
683  addrlen = sizeof(struct in6_addr);
684  addr1p = &((struct sockaddr_in6 *)addr1)->sin6_addr;
685  addr2p = &((struct sockaddr_in6 *)addr2)->sin6_addr;
686  break;
687  default:
688  assert(0);
689  }
690 
691  return (memcmp(addr1p, addr2p, addrlen) == 0);
692 }
693 
694 
695 /* Finds the local node and returns its position in the nodelist.
696  * Uses nodelist.local_node_pos as a cache to save effort
697  */
698 static int find_local_node(icmap_map_t map, int use_cache)
699 {
700  char nodename2[PATH_MAX];
701  char name_str[ICMAP_KEYNAME_MAXLEN];
702  icmap_iter_t iter;
703  const char *iter_key;
704  unsigned int cached_pos;
705  char *dot = NULL;
706  const char *node;
707  struct ifaddrs *ifa, *ifa_list;
708  struct sockaddr *sa;
709  int found = 0;
710  int node_pos = -1;
711  int res;
712  struct utsname utsname;
713 
714  /* Check for cached value first */
715  if (use_cache) {
716  if (icmap_get_uint32("nodelist.local_node_pos", &cached_pos) == CS_OK) {
717  return cached_pos;
718  }
719  }
720 
721  res = uname(&utsname);
722  if (res) {
723  return -1;
724  }
725  node = utsname.nodename;
726 
727  /* 1. Exact match */
728  node_pos = nodelist_byname(map, node, 0);
729  if (node_pos > -1) {
730  found = 1;
731  goto ret_found;
732  }
733 
734  /* 2. Try to match with increasingly more
735  * specific versions of it
736  */
737  strcpy(nodename2, node);
738  dot = strrchr(nodename2, '.');
739  while (dot) {
740  *dot = '\0';
741 
742  node_pos = nodelist_byname(map, nodename2, 0);
743  if (node_pos > -1) {
744  found = 1;
745  goto ret_found;
746  }
747  dot = strrchr(nodename2, '.');
748  }
749 
750  node_pos = nodelist_byname(map, nodename2, 1);
751  if (node_pos > -1) {
752  found = 1;
753  goto ret_found;
754  }
755 
756  /*
757  * The corosync.conf name may not be related to uname at all,
758  * they may match a hostname on some network interface.
759  */
760  if (getifaddrs(&ifa_list))
761  return -1;
762 
763  for (ifa = ifa_list; ifa; ifa = ifa->ifa_next) {
764  socklen_t salen = 0;
765 
766  /* Restore this */
767  strcpy(nodename2, node);
768  sa = ifa->ifa_addr;
769  if (!sa) {
770  continue;
771  }
772  if (sa->sa_family != AF_INET && sa->sa_family != AF_INET6) {
773  continue;
774  }
775 
776  if (sa->sa_family == AF_INET) {
777  salen = sizeof(struct sockaddr_in);
778  }
779  if (sa->sa_family == AF_INET6) {
780  salen = sizeof(struct sockaddr_in6);
781  }
782 
783  if (getnameinfo(sa, salen,
784  nodename2, sizeof(nodename2),
785  NULL, 0, 0) == 0) {
786 
787  node_pos = nodelist_byname(map, nodename2, 0);
788  if (node_pos > -1) {
789  found = 1;
790  goto out;
791  }
792 
793  /* Truncate this name and try again */
794  dot = strchr(nodename2, '.');
795  if (dot) {
796  *dot = '\0';
797 
798  node_pos = nodelist_byname(map, nodename2, 0);
799  if (node_pos > -1) {
800  found = 1;
801  goto out;
802  }
803  }
804  }
805 
806  /* See if it's the IP address that's in corosync.conf */
807  if (getnameinfo(sa, sizeof(*sa),
808  nodename2, sizeof(nodename2),
809  NULL, 0, NI_NUMERICHOST))
810  continue;
811 
812  node_pos = nodelist_byname(map, nodename2, 0);
813  if (node_pos > -1) {
814  found = 1;
815  goto out;
816  }
817  }
818 
819  out:
820  if (found) {
821  freeifaddrs(ifa_list);
822  goto ret_found;
823  }
824 
825  /*
826  * This section covers the usecase where the nodename specified in cluster.conf
827  * is an alias specified in /etc/hosts. For example:
828  * <ipaddr> hostname alias1 alias2
829  * and <clusternode name="alias2">
830  * the above calls use uname and getnameinfo does not return aliases.
831  * here we take the name specified in cluster.conf, resolve it to an address
832  * and then compare against all known local ip addresses.
833  * if we have a match, we found our nodename. In theory this chunk of code
834  * could replace all the checks above, but let's avoid any possible regressions
835  * and use it as last.
836  */
837 
838  iter = icmap_iter_init_r(map, "nodelist.node.");
839  while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
840  char *dbnodename = NULL;
841  struct addrinfo hints;
842  struct addrinfo *result = NULL, *rp = NULL;
843 
844  res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos, name_str);
845  if (res != 2) {
846  continue;
847  }
848  /* 'ring0_addr' is allowed as a fallback, but 'name' will be found first
849  * because the names are in alpha order.
850  */
851  if (strcmp(name_str, "name") && strcmp(name_str, "ring0_addr")) {
852  continue;
853  }
854  if (icmap_get_string_r(map, iter_key, &dbnodename) != CS_OK) {
855  continue;
856  }
857 
858  memset(&hints, 0, sizeof(struct addrinfo));
859  hints.ai_family = AF_UNSPEC;
860  hints.ai_socktype = SOCK_DGRAM;
861  hints.ai_flags = 0;
862  hints.ai_protocol = IPPROTO_UDP;
863 
864  if (getaddrinfo(dbnodename, NULL, &hints, &result)) {
865  continue;
866  }
867 
868  for (rp = result; rp != NULL; rp = rp->ai_next) {
869  for (ifa = ifa_list; ifa; ifa = ifa->ifa_next) {
870  if (ifa->ifa_addr &&
871  ipaddr_equal(rp->ai_addr, ifa->ifa_addr)) {
872  freeaddrinfo(result);
873  found = 1;
874  goto out2;
875  }
876  }
877  }
878 
879  freeaddrinfo(result);
880  }
881 out2:
882  icmap_iter_finalize(iter);
883  freeifaddrs(ifa_list);
884 
885 ret_found:
886  if (found) {
887  res = icmap_set_uint32_r(map, "nodelist.local_node_pos", node_pos);
888  }
889 
890  return node_pos;
891 }
892 
893 static enum totem_ip_version_enum totem_config_get_ip_version(struct totem_config *totem_config)
894 {
895  enum totem_ip_version_enum res;
896  char *str;
897 
898  res = TOTEM_IP_VERSION_6_4;
899 
901  res = TOTEM_IP_VERSION_4;
902  }
903 
904  if (icmap_get_string("totem.ip_version", &str) == CS_OK) {
905  if (strcmp(str, "ipv4") == 0) {
906  res = TOTEM_IP_VERSION_4;
907  }
908  if (strcmp(str, "ipv6") == 0) {
909  res = TOTEM_IP_VERSION_6;
910  }
911  if (strcmp(str, "ipv6-4") == 0) {
912  res = TOTEM_IP_VERSION_6_4;
913  }
914  if (strcmp(str, "ipv4-6") == 0) {
915  res = TOTEM_IP_VERSION_4_6;
916  }
917  free(str);
918  }
919 
920  return (res);
921 }
922 
923 static uint16_t generate_cluster_id (const char *cluster_name)
924 {
925  int i;
926  int value = 0;
927 
928  for (i = 0; i < strlen(cluster_name); i++) {
929  value <<= 1;
930  value += cluster_name[i];
931  }
932 
933  return (value & 0xFFFF);
934 }
935 
936 static int get_cluster_mcast_addr (
937  const char *cluster_name,
938  unsigned int linknumber,
939  enum totem_ip_version_enum ip_version,
940  struct totem_ip_address *res)
941 {
942  uint16_t clusterid;
943  char addr[INET6_ADDRSTRLEN + 1];
944  int err;
945 
946  if (cluster_name == NULL) {
947  return (-1);
948  }
949 
950  clusterid = generate_cluster_id(cluster_name) + linknumber;
951  memset (res, 0, sizeof(*res));
952 
953  switch (ip_version) {
954  case TOTEM_IP_VERSION_4:
956  snprintf(addr, sizeof(addr), "239.192.%d.%d", clusterid >> 8, clusterid % 0xFF);
957  break;
958  case TOTEM_IP_VERSION_6:
960  snprintf(addr, sizeof(addr), "ff15::%x", clusterid);
961  break;
962  default:
963  /*
964  * Unknown family
965  */
966  return (-1);
967  }
968 
969  err = totemip_parse (res, addr, ip_version);
970 
971  return (err);
972 }
973 
974 static unsigned int generate_nodeid(
975  struct totem_config *totem_config,
976  char *addr)
977 {
978  unsigned int nodeid;
979  struct totem_ip_address totemip;
980 
981  /* AF_INET hard-coded here because auto-generated nodeids
982  are only for IPv4 */
983  if (totemip_parse(&totemip, addr, TOTEM_IP_VERSION_4) != 0)
984  return -1;
985 
986  memcpy (&nodeid, &totemip.addr, sizeof (unsigned int));
987 
988 #if __BYTE_ORDER == __LITTLE_ENDIAN
989  nodeid = swab32 (nodeid);
990 #endif
991 
993  nodeid &= 0x7FFFFFFF;
994  }
995  return nodeid;
996 }
997 
998 static int check_for_duplicate_nodeids(
999  struct totem_config *totem_config,
1000  const char **error_string)
1001 {
1002  icmap_iter_t iter;
1003  icmap_iter_t subiter;
1004  const char *iter_key;
1005  int res = 0;
1006  int retval = 0;
1007  char tmp_key[ICMAP_KEYNAME_MAXLEN];
1008  char *ring0_addr=NULL;
1009  char *ring0_addr1=NULL;
1010  unsigned int node_pos;
1011  unsigned int node_pos1;
1012  unsigned int last_node_pos = -1;
1013  unsigned int nodeid;
1014  unsigned int nodeid1;
1015  int autogenerated;
1016 
1017  iter = icmap_iter_init("nodelist.node.");
1018  while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
1019  res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos, tmp_key);
1020  if (res != 2) {
1021  continue;
1022  }
1023 
1024  /*
1025  * This relies on the fact the icmap keys are always returned in order
1026  * so all of the keys for a node will be grouped together. We're basically
1027  * just running the code below once for each node.
1028  */
1029  if (last_node_pos == node_pos) {
1030  continue;
1031  }
1032  last_node_pos = node_pos;
1033 
1034  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", node_pos);
1035  autogenerated = 0;
1036 
1037  /* Generated nodeids are only allowed for UDP/UDPU so ring0_addr is valid here */
1038  if (icmap_get_uint32(tmp_key, &nodeid) != CS_OK) {
1039 
1040  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", node_pos);
1041  if (icmap_get_string(tmp_key, &ring0_addr) != CS_OK) {
1042  continue;
1043  }
1044 
1045  /* Generate nodeid so we can check that auto-generated nodeids don't clash either */
1046  nodeid = generate_nodeid(totem_config, ring0_addr);
1047  if (nodeid == -1) {
1048  continue;
1049  }
1050  autogenerated = 1;
1051  }
1052 
1053  node_pos1 = 0;
1054  subiter = icmap_iter_init("nodelist.node.");
1055  while (((iter_key = icmap_iter_next(subiter, NULL, NULL)) != NULL) && (node_pos1 < node_pos)) {
1056  res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos1, tmp_key);
1057  if ((res != 2) || (node_pos1 >= node_pos)) {
1058  continue;
1059  }
1060 
1061  if (strcmp(tmp_key, "nodeid") != 0) {
1062  continue;
1063  }
1064 
1065  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", node_pos1);
1066  if (icmap_get_uint32(tmp_key, &nodeid1) != CS_OK) {
1067 
1068  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", node_pos1);
1069  if (icmap_get_string(tmp_key, &ring0_addr1) != CS_OK) {
1070  continue;
1071  }
1072  nodeid1 = generate_nodeid(totem_config, ring0_addr1);
1073  if (nodeid1 == -1) {
1074  continue;
1075  }
1076  }
1077 
1078  if (nodeid == nodeid1) {
1079  retval = -1;
1080  snprintf (error_string_response, sizeof(error_string_response),
1081  "Nodeid %u%s%s%s appears twice in corosync.conf", nodeid,
1082  autogenerated?"(autogenerated from ":"",
1083  autogenerated?ring0_addr:"",
1084  autogenerated?")":"");
1085  *error_string = error_string_response;
1086  break;
1087  }
1088  }
1089  icmap_iter_finalize(subiter);
1090  }
1091  icmap_iter_finalize(iter);
1092  return retval;
1093 }
1094 
1095 
1096 /*
1097  * This needs to be done last of all. It would be nice to do it when reading the
1098  * interface params, but the totem params need to have them to be read first. We
1099  * need both, so this is a way round that circular dependancy.
1100  */
1101 static void calc_knet_ping_timers(struct totem_config *totem_config)
1102 {
1103  char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
1104  int interface;
1105 
1106  for (interface = 0; interface < INTERFACE_MAX; interface++) {
1107 
1108  if (totem_config->interfaces[interface].configured) {
1109  if (!totem_config->interfaces[interface].knet_pong_count) {
1111  }
1112  if (!totem_config->interfaces[interface].knet_ping_timeout) {
1115  }
1116  snprintf(runtime_key_name, sizeof(runtime_key_name),
1117  "runtime.config.totem.interface.%d.knet_ping_timeout", interface);
1118  icmap_set_uint32(runtime_key_name, totem_config->interfaces[interface].knet_ping_timeout);
1119 
1120  if (!totem_config->interfaces[interface].knet_ping_interval) {
1123  }
1124  snprintf(runtime_key_name, sizeof(runtime_key_name),
1125  "runtime.config.totem.interface.%d.knet_ping_interval", interface);
1126  icmap_set_uint32(runtime_key_name, totem_config->interfaces[interface].knet_ping_interval);
1127  }
1128  }
1129 }
1130 
1131 /*
1132  * Compute difference between two set of totem interface arrays and commit it.
1133  * set1 and set2
1134  * are changed so for same ring, ip existing in both set1 and set2 are cleared
1135  * (set to 0), and ips which are only in set1 or set2 remains untouched.
1136  * totempg_node_add/remove is called.
1137  */
1138 static void compute_and_set_totempg_interfaces(struct totem_interface *set1,
1139  struct totem_interface *set2)
1140 {
1141  int ring_no, set1_pos, set2_pos;
1142  struct totem_ip_address empty_ip_address;
1143 
1144  memset(&empty_ip_address, 0, sizeof(empty_ip_address));
1145 
1146  for (ring_no = 0; ring_no < INTERFACE_MAX; ring_no++) {
1147  if (!set1[ring_no].configured && !set2[ring_no].configured) {
1148  continue;
1149  }
1150 
1151  for (set1_pos = 0; set1_pos < set1[ring_no].member_count; set1_pos++) {
1152  for (set2_pos = 0; set2_pos < set2[ring_no].member_count; set2_pos++) {
1153  /*
1154  * For current ring_no remove all set1 items existing
1155  * in set2
1156  */
1157  if (memcmp(&set1[ring_no].member_list[set1_pos],
1158  &set2[ring_no].member_list[set2_pos],
1159  sizeof(struct totem_ip_address)) == 0) {
1160  memset(&set1[ring_no].member_list[set1_pos], 0,
1161  sizeof(struct totem_ip_address));
1162  memset(&set2[ring_no].member_list[set2_pos], 0,
1163  sizeof(struct totem_ip_address));
1164  }
1165  }
1166  }
1167  }
1168 
1169  for (ring_no = 0; ring_no < INTERFACE_MAX; ring_no++) {
1170  for (set1_pos = 0; set1_pos < set1[ring_no].member_count; set1_pos++) {
1171  /*
1172  * All items which remain in set1 and don't exist in set2 any more
1173  * have to be removed.
1174  */
1175  if (memcmp(&set1[ring_no].member_list[set1_pos], &empty_ip_address, sizeof(empty_ip_address)) != 0) {
1177  "removing dynamic member %s for ring %u",
1178  totemip_print(&set1[ring_no].member_list[set1_pos]),
1179  ring_no);
1180 
1181  totempg_member_remove(&set1[ring_no].member_list[set1_pos], ring_no);
1182  }
1183  }
1184  if (!set2[ring_no].configured) {
1185  continue;
1186  }
1187  for (set2_pos = 0; set2_pos < set2[ring_no].member_count; set2_pos++) {
1188  /*
1189  * All items which remain in set2 and don't exist in set1 are new nodes
1190  * and have to be added.
1191  */
1192  if (memcmp(&set2[ring_no].member_list[set2_pos], &empty_ip_address, sizeof(empty_ip_address)) != 0) {
1194  "adding dynamic member %s for ring %u",
1195  totemip_print(&set2[ring_no].member_list[set2_pos]),
1196  ring_no);
1197 
1198  totempg_member_add(&set2[ring_no].member_list[set2_pos], ring_no);
1199  }
1200  }
1201  }
1202 }
1203 
1204 /*
1205  * Configure parameters for links
1206  */
1207 static void configure_link_params(struct totem_config *totem_config, icmap_map_t map)
1208 {
1209  int i;
1210  char tmp_key[ICMAP_KEYNAME_MAXLEN];
1211  char *addr_string;
1212  int err;
1213  int local_node_pos = find_local_node(map, 0);
1214 
1215  for (i = 0; i<INTERFACE_MAX; i++) {
1216  if (!totem_config->interfaces[i].configured) {
1217  continue;
1218  }
1219 
1220  log_printf(LOGSYS_LEVEL_DEBUG, "Configuring link %d params\n", i);
1221 
1222  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring%u_addr", local_node_pos, i);
1223  if (icmap_get_string_r(map, tmp_key, &addr_string) != CS_OK) {
1224  continue;
1225  }
1226 
1228  if (err != 0) {
1229  continue;
1230  }
1232 
1233  /* In case this is a new link, fill in the defaults if there was no interface{} section for it */
1236 
1237  /* knet_ping_interval & knet_ping_timeout are set later once we know all the other params */
1243  totem_config->interfaces[i].knet_transport = KNET_TRANSPORT_UDP;
1244  if (!totem_config->interfaces[i].ip_port)
1246  }
1247 }
1248 
1249 
1250 static void configure_totem_links(struct totem_config *totem_config, icmap_map_t map)
1251 {
1252  int i;
1253 
1254  for (i = 0; i<INTERFACE_MAX; i++) {
1255  if (!totem_config->interfaces[i].configured) {
1256  continue;
1257  }
1258 
1259  log_printf(LOGSYS_LEVEL_INFO, "Configuring link %d\n", i);
1260 
1262  }
1263 }
1264 
1265 /* Check for differences in config that can't be done on-the-fly and print an error */
1266 static int check_things_have_not_changed(struct totem_config *totem_config, const char **error_string)
1267 {
1268  int i,j,k;
1269  const char *ip_str;
1270  char addr_buf[INET6_ADDRSTRLEN];
1271  int changed = 0;
1272 
1273  for (i = 0; i<INTERFACE_MAX; i++) {
1279  "New config has different knet transport for link %d. Internal value was NOT changed.\n", i);
1280  changed = 1;
1281  }
1282 
1283  /* Check each nodeid in the new configuration and make sure its IP address on this link has not changed */
1284  for (j=0; j < totem_config->interfaces[i].member_count; j++) {
1285  for (k=0; k < totem_config->orig_interfaces[i].member_count; k++) {
1286 
1289 
1290  /* Found our nodeid - check the IP address */
1291  if (memcmp(&totem_config->interfaces[i].member_list[j],
1293  sizeof(struct totem_ip_address))) {
1294 
1296 
1297  /* if ip_str is NULL then the old address was invalid and is allowed to change */
1298  if (ip_str) {
1299  strncpy(addr_buf, ip_str, sizeof(addr_buf));
1300  addr_buf[sizeof(addr_buf) - 1] = '\0';
1302  "new config has different address for link %d (addr changed from %s to %s). Internal value was NOT changed.\n",
1303  i, addr_buf, totemip_print(&totem_config->interfaces[i].member_list[j]));
1304  changed = 1;
1305  }
1306  }
1307  }
1308  }
1309  }
1310  }
1311  }
1312 
1313  if (changed) {
1314  snprintf (error_string_response, sizeof(error_string_response),
1315  "To reconfigure an interface it must be deleted and recreated. A working interface needs to be available to corosync at all times");
1316  *error_string = error_string_response;
1317  return -1;
1318  }
1319  return 0;
1320 }
1321 
1322 
1323 static int put_nodelist_members_to_config(struct totem_config *totem_config, icmap_map_t map,
1324  int reload, const char **error_string)
1325 {
1326  icmap_iter_t iter, iter2;
1327  const char *iter_key, *iter_key2;
1328  int res = 0;
1329  unsigned int node_pos;
1330  char tmp_key[ICMAP_KEYNAME_MAXLEN];
1331  char tmp_key2[ICMAP_KEYNAME_MAXLEN];
1332  char *node_addr_str;
1333  int member_count;
1334  unsigned int linknumber = 0;
1335  int i, j;
1336  int last_node_pos = -1;
1337 
1338  /* Clear out nodelist so we can put the new one in if needed */
1339  for (i = 0; i < INTERFACE_MAX; i++) {
1340  for (j = 0; j < PROCESSOR_COUNT_MAX; j++) {
1341  memset(&totem_config->interfaces[i].member_list[j], 0, sizeof(struct totem_ip_address));
1342  }
1344  }
1345 
1346  iter = icmap_iter_init_r(map, "nodelist.node.");
1347  while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
1348  res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos, tmp_key);
1349  if (res != 2) {
1350  continue;
1351  }
1352  /* If it's the same as the last node_pos then skip it */
1353  if (node_pos == last_node_pos) {
1354  continue;
1355  }
1356  last_node_pos = node_pos;
1357 
1358  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.", node_pos);
1359  iter2 = icmap_iter_init_r(map, tmp_key);
1360  while ((iter_key2 = icmap_iter_next(iter2, NULL, NULL)) != NULL) {
1361  unsigned int nodeid;
1362  char *str;
1363 
1364  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", node_pos);
1365  if (icmap_get_uint32_r(map, tmp_key, &nodeid) != CS_OK) {
1366  nodeid = 0;
1367  }
1368 
1369  res = sscanf(iter_key2, "nodelist.node.%u.ring%u%s", &node_pos, &linknumber, tmp_key2);
1370  if (res != 3 || strcmp(tmp_key2, "_addr") != 0) {
1371  continue;
1372  }
1373  if (linknumber >= INTERFACE_MAX) {
1374  snprintf (error_string_response, sizeof(error_string_response),
1375  "parse error in config: interface ring number %u is bigger than allowed maximum %u\n",
1376  linknumber, INTERFACE_MAX - 1);
1377  *error_string = error_string_response;
1378 
1379  icmap_iter_finalize(iter2);
1380  icmap_iter_finalize(iter);
1381  return (-1);
1382  }
1383 
1384  if (icmap_get_string_r(map, iter_key2, &node_addr_str) != CS_OK) {
1385  continue;
1386  }
1387 
1388  /* Generate nodeids if they are not provided and transport is UDP/U */
1389  if (!nodeid &&
1392  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", node_pos);
1393  if (icmap_get_string_r(map, tmp_key, &str) == CS_OK) {
1394  nodeid = generate_nodeid(totem_config, str);
1395  if (nodeid == -1) {
1396  sprintf(error_string_response,
1397  "An IPV6 network requires that a node ID be specified "
1398  "for address '%s'.", node_addr_str);
1399  *error_string = error_string_response;
1400  free(str);
1401 
1402  return (-1);
1403  }
1404 
1406  "Generated nodeid = " CS_PRI_NODE_ID " for %s", nodeid, str);
1407  free(str);
1408  }
1409  }
1410 
1411  member_count = totem_config->interfaces[linknumber].member_count;
1412  res = totemip_parse(&totem_config->interfaces[linknumber].member_list[member_count],
1413  node_addr_str, totem_config->ip_version);
1414  if (res == 0) {
1415  totem_config->interfaces[linknumber].member_list[member_count].nodeid = nodeid;
1416  totem_config->interfaces[linknumber].member_count++;
1417  totem_config->interfaces[linknumber].configured = 1;
1418  } else {
1419  sprintf(error_string_response, "failed to parse node address '%s'\n", node_addr_str);
1420  *error_string = error_string_response;
1421 
1422  memset(&totem_config->interfaces[linknumber].member_list[member_count], 0,
1423  sizeof(struct totem_ip_address));
1424 
1425  free(node_addr_str);
1426  icmap_iter_finalize(iter2);
1427  icmap_iter_finalize(iter);
1428  return -1;
1429  }
1430 
1431  free(node_addr_str);
1432  }
1433 
1434  icmap_iter_finalize(iter2);
1435  }
1436 
1437  icmap_iter_finalize(iter);
1438 
1439  configure_link_params(totem_config, map);
1440  if (reload) {
1441  log_printf(LOGSYS_LEVEL_DEBUG, "About to reconfigure links from nodelist.\n");
1442 
1443  if (check_things_have_not_changed(totem_config, error_string) == -1) {
1444  return -1;
1445  }
1446  }
1447  return 0;
1448 }
1449 
1450 static void config_convert_nodelist_to_interface(icmap_map_t map, struct totem_config *totem_config)
1451 {
1452  int res = 0;
1453  int node_pos;
1454  char tmp_key[ICMAP_KEYNAME_MAXLEN];
1455  char tmp_key2[ICMAP_KEYNAME_MAXLEN];
1456  char *node_addr_str;
1457  unsigned int linknumber = 0;
1458  icmap_iter_t iter;
1459  const char *iter_key;
1460 
1461  node_pos = find_local_node(map, 1);
1462  if (node_pos > -1) {
1463  /*
1464  * We found node, so create interface section
1465  */
1466  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.", node_pos);
1467  iter = icmap_iter_init_r(map, tmp_key);
1468  while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
1469  res = sscanf(iter_key, "nodelist.node.%u.ring%u%s", &node_pos, &linknumber, tmp_key2);
1470  if (res != 3 || strcmp(tmp_key2, "_addr") != 0) {
1471  continue ;
1472  }
1473 
1474  if (icmap_get_string_r(map, iter_key, &node_addr_str) != CS_OK) {
1475  continue;
1476  }
1477 
1478  snprintf(tmp_key2, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.bindnetaddr", linknumber);
1479  icmap_set_string_r(map, tmp_key2, node_addr_str);
1480  free(node_addr_str);
1481  }
1482  icmap_iter_finalize(iter);
1483  }
1484 }
1485 
1486 static int get_interface_params(struct totem_config *totem_config, icmap_map_t map,
1487  const char **error_string, uint64_t *warnings,
1488  int reload)
1489 {
1490  int res = 0;
1491  unsigned int linknumber = 0;
1492  int member_count = 0;
1493  int i;
1494  icmap_iter_t iter, member_iter;
1495  const char *iter_key;
1496  const char *member_iter_key;
1497  char linknumber_key[ICMAP_KEYNAME_MAXLEN];
1498  char tmp_key[ICMAP_KEYNAME_MAXLEN];
1499  uint8_t u8;
1500  uint32_t u32;
1501  char *str;
1502  char *cluster_name = NULL;
1503  enum totem_ip_version_enum tmp_ip_version = TOTEM_IP_VERSION_4;
1504  int ret = 0;
1505 
1506  if (reload) {
1507  for (i=0; i<INTERFACE_MAX; i++) {
1508  /*
1509  * Set back to defaults things that might have been configured and
1510  * now have been taken out of corosync.conf. These won't be caught by the
1511  * code below which only looks at interface{} sections that actually exist.
1512  */
1518  }
1519  }
1520  if (icmap_get_string_r(map, "totem.cluster_name", &cluster_name) != CS_OK) {
1521  cluster_name = NULL;
1522  }
1523 
1524  iter = icmap_iter_init_r(map, "totem.interface.");
1525  while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
1526  res = sscanf(iter_key, "totem.interface.%[^.].%s", linknumber_key, tmp_key);
1527  if (res != 2) {
1528  continue;
1529  }
1530 
1531  if (strcmp(tmp_key, "bindnetaddr") != 0 && totem_config->transport_number == TOTEM_TRANSPORT_UDP) {
1532  continue;
1533  }
1534 
1535  member_count = 0;
1536  linknumber = atoi(linknumber_key);
1537 
1538  if (linknumber >= INTERFACE_MAX) {
1539  snprintf (error_string_response, sizeof(error_string_response),
1540  "parse error in config: interface ring number %u is bigger than allowed maximum %u\n",
1541  linknumber, INTERFACE_MAX - 1);
1542 
1543  *error_string = error_string_response;
1544  ret = -1;
1545  goto out;
1546  }
1547 
1548  /* These things are only valid for the initial read */
1549  if (!reload) {
1550  /*
1551  * Get the bind net address
1552  */
1553  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.bindnetaddr", linknumber);
1554 
1555  if (icmap_get_string_r(map, tmp_key, &str) == CS_OK) {
1556  res = totemip_parse (&totem_config->interfaces[linknumber].bindnet, str,
1558 
1559  if (res) {
1560  sprintf(error_string_response, "failed to parse bindnet address '%s'\n", str);
1561  *error_string = error_string_response;
1562  free(str);
1563 
1564  ret = -1;
1565  goto out;
1566  }
1567 
1568  free(str);
1569  }
1570 
1571  /*
1572  * Get interface multicast address
1573  */
1574  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastaddr", linknumber);
1575  if (icmap_get_string_r(map, tmp_key, &str) == CS_OK) {
1576  res = totemip_parse (&totem_config->interfaces[linknumber].mcast_addr, str,
1578 
1579  if (res) {
1580  sprintf(error_string_response, "failed to parse mcast address '%s'\n", str);
1581  *error_string = error_string_response;
1582  free(str);
1583 
1584  ret = -1;
1585  goto out;
1586  }
1587 
1588  free(str);
1590  /*
1591  * User not specified address -> autogenerate one from cluster_name key
1592  * (if available). Return code is intentionally ignored, because
1593  * udpu doesn't need mcastaddr and validity of mcastaddr for udp is
1594  * checked later anyway.
1595  */
1596 
1597  if (totem_config->interfaces[0].bindnet.family == AF_INET) {
1598  tmp_ip_version = TOTEM_IP_VERSION_4;
1599  } else if (totem_config->interfaces[0].bindnet.family == AF_INET6) {
1600  tmp_ip_version = TOTEM_IP_VERSION_6;
1601  }
1602 
1603  (void)get_cluster_mcast_addr (cluster_name,
1604  linknumber,
1605  tmp_ip_version,
1606  &totem_config->interfaces[linknumber].mcast_addr);
1607  }
1608 
1609  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.broadcast", linknumber);
1610  if (icmap_get_string(tmp_key, &str) == CS_OK) {
1611  if (strcmp (str, "yes") == 0) {
1613  }
1614  free(str);
1615  }
1616  }
1617 
1618  /* These things are only valid for the initial read OR a newly-defined link */
1619  if (!reload || (totem_config->interfaces[linknumber].configured == 0)) {
1620 
1621  /*
1622  * Get mcast port
1623  */
1624  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastport", linknumber);
1625  if (icmap_get_uint16_r(map, tmp_key, &totem_config->interfaces[linknumber].ip_port) != CS_OK) {
1626  if (totem_config->broadcast_use) {
1627  totem_config->interfaces[linknumber].ip_port = DEFAULT_PORT + (2 * linknumber);
1628  } else {
1629  totem_config->interfaces[linknumber].ip_port = DEFAULT_PORT + linknumber;
1630  }
1631  }
1632 
1633  /*
1634  * Get the TTL
1635  */
1636  totem_config->interfaces[linknumber].ttl = 1;
1637 
1638  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.ttl", linknumber);
1639 
1640  if (icmap_get_uint8_r(map, tmp_key, &u8) == CS_OK) {
1641  totem_config->interfaces[linknumber].ttl = u8;
1642  }
1643 
1645  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_transport", linknumber);
1646  if (icmap_get_string_r(map, tmp_key, &str) == CS_OK) {
1647  if (strcmp(str, "sctp") == 0) {
1648  totem_config->interfaces[linknumber].knet_transport = KNET_TRANSPORT_SCTP;
1649  }
1650  else if (strcmp(str, "udp") == 0) {
1651  totem_config->interfaces[linknumber].knet_transport = KNET_TRANSPORT_UDP;
1652  }
1653  else {
1654  *error_string = "Unrecognised knet_transport. expected 'udp' or 'sctp'";
1655  ret = -1;
1656  goto out;
1657  }
1658  }
1659  }
1660  totem_config->interfaces[linknumber].configured = 1;
1661 
1662  /*
1663  * Get the knet link params
1664  */
1665  totem_config->interfaces[linknumber].knet_link_priority = 1;
1666  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_link_priority", linknumber);
1667 
1668  if (icmap_get_uint8_r(map, tmp_key, &u8) == CS_OK) {
1669  totem_config->interfaces[linknumber].knet_link_priority = u8;
1670  }
1671 
1672  totem_config->interfaces[linknumber].knet_ping_interval = 0; /* real default applied later */
1673  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_ping_interval", linknumber);
1674  if (icmap_get_uint32_r(map, tmp_key, &u32) == CS_OK) {
1675  totem_config->interfaces[linknumber].knet_ping_interval = u32;
1676  }
1677  totem_config->interfaces[linknumber].knet_ping_timeout = 0; /* real default applied later */
1678  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_ping_timeout", linknumber);
1679  if (icmap_get_uint32_r(map, tmp_key, &u32) == CS_OK) {
1680  totem_config->interfaces[linknumber].knet_ping_timeout = u32;
1681  }
1683  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_ping_precision", linknumber);
1684  if (icmap_get_uint32_r(map, tmp_key, &u32) == CS_OK) {
1685  totem_config->interfaces[linknumber].knet_ping_precision = u32;
1686  }
1688  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_pong_count", linknumber);
1689  if (icmap_get_uint32_r(map, tmp_key, &u32) == CS_OK) {
1690  totem_config->interfaces[linknumber].knet_pong_count = u32;
1691  }
1692 
1693  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.member.", linknumber);
1694  member_iter = icmap_iter_init_r(map, tmp_key);
1695  while ((member_iter_key = icmap_iter_next(member_iter, NULL, NULL)) != NULL) {
1696  if (member_count == 0) {
1697  if (icmap_get_string("nodelist.node.0.ring0_addr", &str) == CS_OK) {
1698  free(str);
1700  break;
1701  } else {
1703  }
1704  }
1705 
1706  if (icmap_get_string_r(map, member_iter_key, &str) == CS_OK) {
1707  res = totemip_parse (&totem_config->interfaces[linknumber].member_list[member_count++],
1708  str, totem_config->ip_version);
1709  if (res) {
1710  sprintf(error_string_response, "failed to parse node address '%s'\n", str);
1711  *error_string = error_string_response;
1712 
1713  icmap_iter_finalize(member_iter);
1714  free(str);
1715  ret = -1;
1716  goto out;
1717  }
1718 
1719  free(str);
1720  }
1721  }
1722  icmap_iter_finalize(member_iter);
1723 
1724  totem_config->interfaces[linknumber].member_count = member_count;
1725 
1726  }
1727 
1728 out:
1729  icmap_iter_finalize(iter);
1730  free(cluster_name);
1731 
1732  return (ret);
1733 }
1734 
1735 extern int totem_config_read (
1736  struct totem_config *totem_config,
1737  const char **error_string,
1738  uint64_t *warnings)
1739 {
1740  int res = 0;
1741  char *str, *ring0_addr_str;
1742  char tmp_key[ICMAP_KEYNAME_MAXLEN];
1743  uint16_t u16;
1744  int i;
1745  int local_node_pos;
1746  int nodeid_set;
1747 
1748  *warnings = 0;
1749 
1750  memset (totem_config, 0, sizeof (struct totem_config));
1751  totem_config->interfaces = malloc (sizeof (struct totem_interface) * INTERFACE_MAX);
1752  if (totem_config->interfaces == 0) {
1753  *error_string = "Out of memory trying to allocate ethernet interface storage area";
1754  return -1;
1755  }
1756 
1758  if (icmap_get_string("totem.transport", &str) == CS_OK) {
1759  if (strcmp (str, "udpu") == 0) {
1761  } else if (strcmp (str, "udp") == 0) {
1763  } else if (strcmp (str, "knet") == 0) {
1765  } else {
1766  *error_string = "Invalid transport type. Should be udpu, udp or knet";
1767  free(str);
1768  return -1;
1769  }
1770 
1771  free(str);
1772  }
1773 
1774  memset (totem_config->interfaces, 0,
1775  sizeof (struct totem_interface) * INTERFACE_MAX);
1776 
1777  strcpy (totem_config->link_mode, "passive");
1778 
1779  icmap_get_uint32("totem.version", (uint32_t *)&totem_config->version);
1780 
1781  /* initial crypto load */
1782  if (totem_get_crypto(totem_config, icmap_get_global_map(), error_string) != 0) {
1783  return -1;
1784  }
1785  if (totem_config_keyread(totem_config, icmap_get_global_map(), error_string) != 0) {
1786  return -1;
1787  }
1790 
1791  if (icmap_get_string("totem.link_mode", &str) == CS_OK) {
1792  if (strlen(str) >= TOTEM_LINK_MODE_BYTES) {
1793  *error_string = "totem.link_mode is too long";
1794  free(str);
1795 
1796  return -1;
1797  }
1798  strcpy (totem_config->link_mode, str);
1799  free(str);
1800  }
1801 
1802  icmap_get_uint32("totem.nodeid", &totem_config->node_id);
1803 
1805  if (icmap_get_string("totem.clear_node_high_bit", &str) == CS_OK) {
1806  if (strcmp (str, "yes") == 0) {
1808  }
1809  free(str);
1810  }
1811 
1812  icmap_get_uint32("totem.threads", &totem_config->threads);
1813 
1814  icmap_get_uint32("totem.netmtu", &totem_config->net_mtu);
1815 
1816  totem_config->ip_version = totem_config_get_ip_version(totem_config);
1817 
1818  if (icmap_get_string("totem.interface.0.bindnetaddr", &str) != CS_OK) {
1819  /*
1820  * We were not able to find ring 0 bindnet addr. Try to use nodelist informations
1821  */
1822  config_convert_nodelist_to_interface(icmap_get_global_map(), totem_config);
1823  } else {
1824  if (icmap_get_string("nodelist.node.0.ring0_addr", &ring0_addr_str) == CS_OK) {
1825  /*
1826  * Both bindnetaddr and ring0_addr are set.
1827  * Log warning information, and use nodelist instead
1828  */
1830 
1831  config_convert_nodelist_to_interface(icmap_get_global_map(), totem_config);
1832 
1833  free(ring0_addr_str);
1834  }
1835 
1836  free(str);
1837  }
1838 
1839  /*
1840  * Broadcast option is global but set in interface section,
1841  * so reset before processing interfaces.
1842  */
1844 
1845  res = get_interface_params(totem_config, icmap_get_global_map(), error_string, warnings, 0);
1846  if (res < 0) {
1847  return res;
1848  }
1849 
1850  /*
1851  * Use broadcast is global, so if set, make sure to fill mcast addr correctly
1852  * broadcast is only supported for UDP so just do interface 0;
1853  */
1854  if (totem_config->broadcast_use) {
1856  "255.255.255.255", TOTEM_IP_VERSION_4);
1857  }
1858 
1859 
1860  /*
1861  * Store automatically generated items back to icmap only for UDP
1862  */
1864  for (i = 0; i < INTERFACE_MAX; i++) {
1865  if (!totem_config->interfaces[i].configured) {
1866  continue;
1867  }
1868  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastaddr", i);
1869  if (icmap_get_string(tmp_key, &str) == CS_OK) {
1870  free(str);
1871  } else {
1872  str = (char *)totemip_print(&totem_config->interfaces[i].mcast_addr);
1873  icmap_set_string(tmp_key, str);
1874  }
1875 
1876  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastport", i);
1877  if (icmap_get_uint16(tmp_key, &u16) != CS_OK) {
1879  }
1880  }
1881  }
1882 
1883  /*
1884  * Check existence of nodelist
1885  */
1886  if ((icmap_get_string("nodelist.node.0.name", &str) == CS_OK) ||
1887  (icmap_get_string("nodelist.node.0.ring0_addr", &str) == CS_OK)) {
1888  free(str);
1889  /*
1890  * find local node
1891  */
1892  local_node_pos = find_local_node(icmap_get_global_map(), 1);
1893  if (local_node_pos != -1) {
1894 
1895  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", local_node_pos);
1896 
1897  nodeid_set = (totem_config->node_id != 0);
1898  if (icmap_get_uint32(tmp_key, &totem_config->node_id) == CS_OK && nodeid_set) {
1900  }
1902  *error_string = "Knet requires an explicit nodeid for the local node";
1903  return -1;
1904  }
1905 
1908 
1909  snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", local_node_pos);
1910  icmap_get_string(tmp_key, &str);
1911 
1912  totem_config->node_id = generate_nodeid(totem_config, str);
1913  if (totem_config->node_id == -1) {
1914  *error_string = "An IPV6 network requires that a node ID be specified";
1915 
1916  free(str);
1917  return (-1);
1918  }
1919 
1921 
1922  free(str);
1923  }
1924 
1925  /* Users must not change this */
1926  icmap_set_ro_access("nodelist.local_node_pos", 0, 1);
1927  }
1928 
1929  if (put_nodelist_members_to_config(totem_config, icmap_get_global_map(), 0, error_string)) {
1930  return -1;
1931  }
1932  }
1933 
1934  /*
1935  * Get things that might change in the future (and can depend on totem_config->interfaces);
1936  */
1938 
1939  calc_knet_ping_timers(totem_config);
1940 
1941  /* This is now done in the totemknet interface callback */
1942  /* configure_totem_links(totem_config, icmap_get_global_map()); */
1943 
1944  add_totem_config_notification(totem_config);
1945 
1946  return 0;
1947 }
1948 
1949 
1951  struct totem_config *totem_config,
1952  const char **error_string)
1953 {
1954  static char local_error_reason[512];
1955  char parse_error[512];
1956  const char *error_reason = local_error_reason;
1957  int i;
1958  uint32_t u32;
1959  int num_configured = 0;
1960  unsigned int interface_max = INTERFACE_MAX;
1961 
1962  for (i = 0; i < INTERFACE_MAX; i++) {
1964  num_configured++;
1965  }
1966  }
1967  if (num_configured == 0) {
1968  error_reason = "No interfaces defined";
1969  goto parse_error;
1970  }
1971 
1972  /* Check we found a local node name */
1973  if (icmap_get_uint32("nodelist.local_node_pos", &u32) != CS_OK) {
1974  error_reason = "No valid name found for local host";
1975  goto parse_error;
1976  }
1977 
1978  for (i = 0; i < INTERFACE_MAX; i++) {
1979  /*
1980  * Some error checking of parsed data to make sure its valid
1981  */
1982 
1983  struct totem_ip_address null_addr;
1984 
1985  if (!totem_config->interfaces[i].configured) {
1986  continue;
1987  }
1988 
1989  memset (&null_addr, 0, sizeof (struct totem_ip_address));
1990 
1992  memcmp (&totem_config->interfaces[i].mcast_addr, &null_addr,
1993  sizeof (struct totem_ip_address)) == 0) {
1994  snprintf (local_error_reason, sizeof(local_error_reason),
1995  "No multicast address specified for interface %u", i);
1996  goto parse_error;
1997  }
1998 
1999  if (totem_config->interfaces[i].ip_port == 0) {
2000  snprintf (local_error_reason, sizeof(local_error_reason),
2001  "No multicast port specified for interface %u", i);
2002  goto parse_error;
2003  }
2004 
2005  if (totem_config->interfaces[i].ttl > 255) {
2006  snprintf (local_error_reason, sizeof(local_error_reason),
2007  "Invalid TTL (should be 0..255) for interface %u", i);
2008  goto parse_error;
2009  }
2011  totem_config->interfaces[i].ttl != 1) {
2012  snprintf (local_error_reason, sizeof(local_error_reason),
2013  "Can only set ttl on multicast transport types for interface %u", i);
2014  goto parse_error;
2015  }
2016  if (totem_config->interfaces[i].knet_link_priority > 255) {
2017  snprintf (local_error_reason, sizeof(local_error_reason),
2018  "Invalid link priority (should be 0..255) for interface %u", i);
2019  goto parse_error;
2020  }
2023  snprintf (local_error_reason, sizeof(local_error_reason),
2024  "Can only set link priority on knet transport type for interface %u", i);
2025  goto parse_error;
2026  }
2027 
2028  if (totem_config->interfaces[i].mcast_addr.family == AF_INET6 &&
2029  totem_config->node_id == 0) {
2030  snprintf (local_error_reason, sizeof(local_error_reason),
2031  "An IPV6 network requires that a node ID be specified for interface %u", i);
2032  goto parse_error;
2033  }
2034 
2037  snprintf (local_error_reason, sizeof(local_error_reason),
2038  "Multicast address family does not match bind address family for interface %u", i);
2039  goto parse_error;
2040  }
2041 
2043  snprintf (local_error_reason, sizeof(local_error_reason),
2044  "mcastaddr is not a correct multicast address for interface %u", i);
2045  goto parse_error;
2046  }
2047  }
2048  }
2049 
2050  if (totem_config->version != 2) {
2051  error_reason = "This totem parser can only parse version 2 configurations.";
2052  goto parse_error;
2053  }
2054 
2056  return (-1);
2057  }
2058 
2059  if (check_for_duplicate_nodeids(totem_config, error_string) == -1) {
2060  return (-1);
2061  }
2062 
2063  /*
2064  * KNET Link values validation
2065  */
2066  if (strcmp (totem_config->link_mode, "active") &&
2067  strcmp (totem_config->link_mode, "rr") &&
2068  strcmp (totem_config->link_mode, "passive")) {
2069  snprintf (local_error_reason, sizeof(local_error_reason),
2070  "The Knet link mode \"%s\" specified is invalid. It must be active, passive or rr.\n", totem_config->link_mode);
2071  goto parse_error;
2072  }
2073 
2074  /* Only Knet does multiple interfaces */
2076  interface_max = 1;
2077  }
2078 
2079  if (interface_max < num_configured) {
2080  snprintf (parse_error, sizeof(parse_error),
2081  "%d is too many configured interfaces for non-Knet transport.",
2082  num_configured);
2083  error_reason = parse_error;
2084  goto parse_error;
2085  }
2086 
2087  /* Only knet allows crypto */
2089  if ((strcmp(totem_config->crypto_cipher_type, "none") != 0) ||
2090  (strcmp(totem_config->crypto_hash_type, "none") != 0)) {
2091 
2092  snprintf (parse_error, sizeof(parse_error),
2093  "crypto_cipher & crypto_hash are only valid for the Knet transport.");
2094  error_reason = parse_error;
2095  goto parse_error;
2096  }
2097  }
2098 
2099  if (totem_config->net_mtu == 0) {
2101  totem_config->net_mtu = KNET_MAX_PACKET_SIZE;
2102  }
2103  else {
2105  }
2106  }
2107 
2108  return 0;
2109 
2110 parse_error:
2111  snprintf (error_string_response, sizeof(error_string_response),
2112  "parse error in config: %s\n", error_reason);
2113  *error_string = error_string_response;
2114  return (-1);
2115 
2116 }
2117 
2118 static int read_keyfile (
2119  const char *key_location,
2120  struct totem_config *totem_config,
2121  const char **error_string)
2122 {
2123  int fd;
2124  int res;
2125  int saved_errno;
2126  char error_str[100];
2127  const char *error_ptr;
2128 
2129  fd = open (key_location, O_RDONLY);
2130  if (fd == -1) {
2131  error_ptr = qb_strerror_r(errno, error_str, sizeof(error_str));
2132  snprintf (error_string_response, sizeof(error_string_response),
2133  "Could not open %s: %s\n",
2134  key_location, error_ptr);
2135  goto parse_error;
2136  }
2137 
2139  saved_errno = errno;
2140  close (fd);
2141 
2142  if (res == -1) {
2143  error_ptr = qb_strerror_r (saved_errno, error_str, sizeof(error_str));
2144  snprintf (error_string_response, sizeof(error_string_response),
2145  "Could not read %s: %s\n",
2146  key_location, error_ptr);
2147  goto parse_error;
2148  }
2149 
2150  if (res < TOTEM_PRIVATE_KEY_LEN_MIN) {
2151  snprintf (error_string_response, sizeof(error_string_response),
2152  "Could only read %d bits of minimum %u bits from %s.\n",
2153  res * 8, TOTEM_PRIVATE_KEY_LEN_MIN * 8, key_location);
2154  goto parse_error;
2155  }
2156 
2158 
2159  return 0;
2160 
2161 parse_error:
2162  *error_string = error_string_response;
2163  return (-1);
2164 }
2165 
2167  struct totem_config *totem_config,
2168  icmap_map_t map,
2169  const char **error_string)
2170 {
2171  int got_key = 0;
2172  char *key_location = NULL;
2173  int res;
2174  size_t key_len;
2175  char old_key[TOTEM_PRIVATE_KEY_LEN_MAX];
2176  size_t old_key_len;
2177 
2178  /* Take a copy so we can see if it has changed */
2179  memcpy(old_key, totem_config->private_key, sizeof(totem_config->private_key));
2180  old_key_len = totem_config->private_key_len;
2181 
2182  memset (totem_config->private_key, 0, sizeof(totem_config->private_key));
2184 
2185  if (strcmp(totem_config->crypto_cipher_type, "none") == 0 &&
2186  strcmp(totem_config->crypto_hash_type, "none") == 0) {
2187  return (0);
2188  }
2189 
2190  /* cmap may store the location of the key file */
2191  if (icmap_get_string_r(map, "totem.keyfile", &key_location) == CS_OK) {
2192  res = read_keyfile(key_location, totem_config, error_string);
2193  free(key_location);
2194  if (res) {
2195  goto key_error;
2196  }
2197  got_key = 1;
2198  } else { /* Or the key itself may be in the cmap */
2199  if (icmap_get_r(map, "totem.key", NULL, &key_len, NULL) == CS_OK) {
2200  if (key_len > sizeof(totem_config->private_key)) {
2201  sprintf(error_string_response, "key is too long");
2202  goto key_error;
2203  }
2204  if (key_len < TOTEM_PRIVATE_KEY_LEN_MIN) {
2205  sprintf(error_string_response, "key is too short");
2206  goto key_error;
2207  }
2208  if (icmap_get_r(map, "totem.key", totem_config->private_key, &key_len, NULL) == CS_OK) {
2209  totem_config->private_key_len = key_len;
2210  got_key = 1;
2211  } else {
2212  sprintf(error_string_response, "can't load private key");
2213  goto key_error;
2214  }
2215  }
2216  }
2217 
2218  /* In desperation we read the default filename */
2219  if (!got_key) {
2220  res = read_keyfile(COROSYSCONFDIR "/authkey", totem_config, error_string);
2221  if (res)
2222  goto key_error;
2223  }
2224 
2225  if (old_key_len != totem_config->private_key_len ||
2226  memcmp(old_key, totem_config->private_key, sizeof(totem_config->private_key))) {
2228  }
2229 
2230  return (0);
2231 
2232 key_error:
2233  *error_string = error_string_response;
2234  return (-1);
2235 
2236 }
2237 
2238 int totem_reread_crypto_config(struct totem_config *totem_config, icmap_map_t map, const char **error_string)
2239 {
2240  if (totem_get_crypto(totem_config, map, error_string) != 0) {
2241  return -1;
2242  }
2243  if (totem_config_keyread(totem_config, map, error_string) != 0) {
2244  return -1;
2245  }
2246  return 0;
2247 }
2248 
2249 static void debug_dump_totem_config(const struct totem_config *totem_config)
2250 {
2251 
2252  log_printf(LOGSYS_LEVEL_DEBUG, "Token Timeout (%d ms) retransmit timeout (%d ms)",
2254  if (totem_config->token_warning) {
2255  uint32_t token_warning_ms = totem_config->token_warning * totem_config->token_timeout / 100;
2256  log_printf(LOGSYS_LEVEL_DEBUG, "Token warning every %d ms (%d%% of Token Timeout)",
2257  token_warning_ms, totem_config->token_warning);
2258  if (token_warning_ms < totem_config->token_retransmit_timeout)
2260  "The token warning interval (%d ms) is less than the token retransmit timeout (%d ms) "
2261  "which can lead to spurious token warnings. Consider increasing the token_warning parameter.",
2262  token_warning_ms, totem_config->token_retransmit_timeout);
2263 
2264  } else
2265  log_printf(LOGSYS_LEVEL_DEBUG, "Token warnings disabled");
2266  log_printf(LOGSYS_LEVEL_DEBUG, "token hold (%d ms) retransmits before loss (%d retrans)",
2268  log_printf(LOGSYS_LEVEL_DEBUG, "join (%d ms) send_join (%d ms) consensus (%d ms) merge (%d ms)",
2271  log_printf(LOGSYS_LEVEL_DEBUG, "downcheck (%d ms) fail to recv const (%d msgs)",
2274  "seqno unchanged const (%d rotations) Maximum network MTU %d",
2277  "window size per rotation (%d messages) maximum messages per rotation (%d messages)",
2279  log_printf(LOGSYS_LEVEL_DEBUG, "missed count const (%d messages)", totem_config->miss_count_const);
2280  log_printf(LOGSYS_LEVEL_DEBUG, "heartbeat_failures_allowed (%d)",
2282  log_printf(LOGSYS_LEVEL_DEBUG, "max_network_delay (%d ms)", totem_config->max_network_delay);
2283 }
2284 
2285 
2286 static void totem_change_notify(
2287  int32_t event,
2288  const char *key_name,
2289  struct icmap_notify_value new_val,
2290  struct icmap_notify_value old_val,
2291  void *user_data)
2292 {
2293  struct totem_config *totem_config = (struct totem_config *)user_data;
2294  uint32_t *param;
2295  uint8_t reloading;
2296  const char *deleted_key = NULL;
2297  const char *error_string;
2298 
2299  /*
2300  * If a full reload is in progress then don't do anything until it's done and
2301  * can reconfigure it all atomically
2302  */
2303  if (icmap_get_uint8("config.reload_in_progress", &reloading) == CS_OK && reloading)
2304  return;
2305 
2306  param = totem_get_param_by_name((struct totem_config *)user_data, key_name);
2307  /*
2308  * Process change only if changed key is found in totem_config (-> param is not NULL)
2309  * or for special key token_coefficient. token_coefficient key is not stored in
2310  * totem_config, but it is used for computation of token timeout.
2311  */
2312  if (!param && strcmp(key_name, "totem.token_coefficient") != 0)
2313  return;
2314 
2315  /*
2316  * Values other than UINT32 are not supported, or needed (yet)
2317  */
2318  switch (event) {
2319  case ICMAP_TRACK_DELETE:
2320  deleted_key = key_name;
2321  break;
2322  case ICMAP_TRACK_ADD:
2323  case ICMAP_TRACK_MODIFY:
2324  deleted_key = NULL;
2325  break;
2326  default:
2327  break;
2328  }
2329 
2331  log_printf(LOGSYS_LEVEL_DEBUG, "Totem related config key changed. Dumping actual totem config.");
2332  debug_dump_totem_config(totem_config);
2333  if (totem_volatile_config_validate(totem_config, icmap_get_global_map(), &error_string) == -1) {
2334  log_printf (LOGSYS_LEVEL_ERROR, "%s", error_string);
2335  /*
2336  * TODO: Consider corosync exit and/or load defaults for volatile
2337  * values. For now, log error seems to be enough
2338  */
2339  }
2340 }
2341 
2342 
2344  struct totem_config *totem_config,
2345  icmap_map_t map,
2346  const char **error_string)
2347 {
2348  uint64_t warnings = 0LL;
2349 
2350  get_interface_params(totem_config, map, error_string, &warnings, 1);
2351  if (put_nodelist_members_to_config (totem_config, map, 1, error_string)) {
2352  return -1;
2353  }
2354 
2355  calc_knet_ping_timers(totem_config);
2356 
2357  log_printf(LOGSYS_LEVEL_DEBUG, "Configuration reloaded. Dumping actual totem config.");
2358  debug_dump_totem_config(totem_config);
2359 
2360  /* Reinstate the local_node_pos */
2361  (void)find_local_node(map, 0);
2362 
2363  return 0;
2364 }
2365 
2367  struct totem_config *totem_config,
2368  icmap_map_t map)
2369 {
2370  struct totem_interface *new_interfaces = NULL;
2371 
2372  new_interfaces = malloc (sizeof (struct totem_interface) * INTERFACE_MAX);
2373  assert(new_interfaces != NULL);
2374  memcpy(new_interfaces, totem_config->interfaces, sizeof (struct totem_interface) * INTERFACE_MAX);
2375 
2376  /* Set link parameters including local_ip */
2377  configure_totem_links(totem_config, map);
2378 
2379  /* Add & remove nodes */
2380  compute_and_set_totempg_interfaces(totem_config->orig_interfaces, new_interfaces);
2381 
2382  /* Does basic global params (like compression) */
2384 
2385  free(new_interfaces);
2386 }
2387 
2388 static void add_totem_config_notification(struct totem_config *totem_config)
2389 {
2391 
2392  icmap_track_add("totem.",
2394  totem_change_notify,
2395  totem_config,
2396  &icmap_track);
2397 }
#define COROSYSCONFDIR
Definition: config.h:8
#define INTERFACE_MAX
Definition: coroapi.h:88
unsigned int nodeid
Definition: coroapi.h:0
unsigned char addr[TOTEMIP_ADDRLEN]
Definition: coroapi.h:2
#define PROCESSOR_COUNT_MAX
Definition: coroapi.h:96
#define CS_PRI_NODE_ID
Definition: corotypes.h:59
@ CS_OK
Definition: corotypes.h:98
uint8_t param
uint32_t value
icmap_iter_t icmap_iter_init_r(const icmap_map_t map, const char *prefix)
icmap_iter_init_r
Definition: icmap.c:1084
cs_error_t icmap_get_uint8(const char *key_name, uint8_t *u8)
Definition: icmap.c:868
#define ICMAP_TRACK_MODIFY
Definition: icmap.h:78
cs_error_t icmap_get_string_r(const icmap_map_t map, const char *key_name, char **str)
Definition: icmap.c:735
cs_error_t icmap_get_uint16(const char *key_name, uint16_t *u16)
Definition: icmap.c:880
cs_error_t icmap_get_uint32(const char *key_name, uint32_t *u32)
Definition: icmap.c:892
cs_error_t icmap_set_ro_access(const char *key_name, int prefix, int ro_access)
Set read-only access for given key (key_name) or prefix, If prefix is set.
Definition: icmap.c:1225
cs_error_t icmap_set_uint32_r(const icmap_map_t map, const char *key_name, uint32_t value)
Definition: icmap.c:527
cs_error_t icmap_get_uint8_r(const icmap_map_t map, const char *key_name, uint8_t *u8)
Definition: icmap.c:802
#define ICMAP_TRACK_DELETE
Definition: icmap.h:77
cs_error_t icmap_set_uint16(const char *key_name, uint16_t value)
Definition: icmap.c:585
cs_error_t icmap_track_add(const char *key_name, int32_t track_type, icmap_notify_fn_t notify_fn, void *user_data, icmap_track_t *icmap_track)
Add tracking function for given key_name.
Definition: icmap.c:1159
cs_error_t icmap_set_string(const char *key_name, const char *value)
Definition: icmap.c:627
#define ICMAP_TRACK_PREFIX
Whole prefix is tracked, instead of key only (so "totem." tracking means that "totem....
Definition: icmap.h:85
icmap_iter_t icmap_iter_init(const char *prefix)
Initialize iterator with given prefix.
Definition: icmap.c:1089
cs_error_t icmap_get_uint16_r(const icmap_map_t map, const char *key_name, uint16_t *u16)
Definition: icmap.c:814
cs_error_t icmap_set_int32_r(const icmap_map_t map, const char *key_name, int32_t value)
Definition: icmap.c:521
const char * icmap_iter_next(icmap_iter_t iter, size_t *value_len, icmap_value_types_t *type)
Return next item in iterator iter.
Definition: icmap.c:1095
icmap_map_t icmap_get_global_map(void)
Return global icmap.
Definition: icmap.c:264
qb_map_iter_t * icmap_iter_t
Itterator type.
Definition: icmap.h:123
cs_error_t icmap_set_string_r(const icmap_map_t map, const char *key_name, const char *value)
Definition: icmap.c:557
void icmap_iter_finalize(icmap_iter_t iter)
Finalize iterator.
Definition: icmap.c:1116
cs_error_t icmap_get_int32_r(const icmap_map_t map, const char *key_name, int32_t *i32)
Definition: icmap.c:820
cs_error_t icmap_get_r(const icmap_map_t map, const char *key_name, void *value, size_t *value_len, icmap_value_types_t *type)
Same as icmap_get but it's reentrant and operates on given icmap_map.
Definition: icmap.c:692
#define ICMAP_KEYNAME_MAXLEN
Maximum length of key in icmap.
Definition: icmap.h:48
cs_error_t icmap_get_uint32_r(const icmap_map_t map, const char *key_name, uint32_t *u32)
Definition: icmap.c:826
cs_error_t icmap_set_uint32(const char *key_name, uint32_t value)
Definition: icmap.c:597
#define ICMAP_TRACK_ADD
Definition: icmap.h:76
cs_error_t icmap_get_string(const char *key_name, char **str)
Shortcut for icmap_get for string type.
Definition: icmap.c:856
#define LOGSYS_LEVEL_ERROR
Definition: logsys.h:72
#define log_printf(level, format, args...)
Definition: logsys.h:323
#define LOGSYS_LEVEL_INFO
Definition: logsys.h:75
#define LOGSYS_LEVEL_DEBUG
Definition: logsys.h:76
void * user_data
Definition: sam.c:127
Structure passed as new_value and old_value in change callback.
Definition: icmap.h:91
char crypto_model[CONFIG_STRING_LEN_MAX]
Definition: totem.h:223
unsigned int max_messages
Definition: totem.h:219
unsigned int heartbeat_failures_allowed
Definition: totem.h:213
unsigned int token_timeout
Definition: totem.h:181
unsigned int private_key_len
Definition: totem.h:176
unsigned int node_id
Definition: totem.h:167
unsigned int broadcast_use
Definition: totem.h:221
uint32_t knet_compression_threshold
Definition: totem.h:235
unsigned int window_size
Definition: totem.h:217
unsigned int downcheck_timeout
Definition: totem.h:199
unsigned int miss_count_const
Definition: totem.h:241
totem_transport_t transport_number
Definition: totem.h:239
struct totem_interface * interfaces
Definition: totem.h:165
int crypto_changed
Definition: totem.h:231
unsigned int fail_to_recv_const
Definition: totem.h:201
unsigned int clear_node_high_bit
Definition: totem.h:168
unsigned int merge_timeout
Definition: totem.h:197
struct totem_interface * orig_interfaces
Definition: totem.h:166
int knet_compression_level
Definition: totem.h:237
unsigned int net_mtu
Definition: totem.h:209
int version
Definition: totem.h:160
char knet_compression_model[CONFIG_STRING_LEN_MAX]
Definition: totem.h:233
unsigned int block_unlisted_ips
Definition: totem.h:245
unsigned int token_retransmits_before_loss_const
Definition: totem.h:189
unsigned char private_key[TOTEM_PRIVATE_KEY_LEN_MAX]
Definition: totem.h:174
int crypto_index
Definition: totem.h:229
unsigned int max_network_delay
Definition: totem.h:215
unsigned int seqno_unchanged_const
Definition: totem.h:203
unsigned int consensus_timeout
Definition: totem.h:195
unsigned int knet_pmtud_interval
Definition: totem.h:169
char crypto_cipher_type[CONFIG_STRING_LEN_MAX]
Definition: totem.h:225
unsigned int threads
Definition: totem.h:211
unsigned int send_join_timeout
Definition: totem.h:193
char link_mode[TOTEM_LINK_MODE_BYTES]
Definition: totem.h:205
enum totem_ip_version_enum ip_version
Definition: totem.h:243
unsigned int token_retransmit_timeout
Definition: totem.h:185
char crypto_hash_type[CONFIG_STRING_LEN_MAX]
Definition: totem.h:227
unsigned int token_warning
Definition: totem.h:183
unsigned int join_timeout
Definition: totem.h:191
unsigned int token_hold_timeout
Definition: totem.h:187
struct totem_ip_address local_ip
Definition: totem.h:86
int knet_ping_timeout
Definition: totem.h:93
int knet_link_priority
Definition: totem.h:91
uint16_t ip_port
Definition: totem.h:87
int knet_ping_interval
Definition: totem.h:92
uint8_t configured
Definition: totem.h:89
int knet_ping_precision
Definition: totem.h:94
int knet_pong_count
Definition: totem.h:95
int knet_transport
Definition: totem.h:96
int member_count
Definition: totem.h:90
struct totem_ip_address bindnet
Definition: totem.h:83
struct totem_ip_address member_list[PROCESSOR_COUNT_MAX]
Definition: totem.h:97
uint16_t ttl
Definition: totem.h:88
struct totem_ip_address mcast_addr
Definition: totem.h:85
The totem_ip_address struct.
Definition: coroapi.h:111
unsigned int nodeid
Definition: coroapi.h:112
unsigned short family
Definition: coroapi.h:113
#define swab32(x)
The swab32 macro.
Definition: swab.h:51
@ TOTEM_LINK_MODE_BYTES
Definition: totem.h:140
@ TOTEM_PRIVATE_KEY_LEN_MAX
Definition: totem.h:137
@ TOTEM_PRIVATE_KEY_LEN_MIN
Definition: totem.h:136
#define CONFIG_STRING_LEN_MAX
Definition: totem.h:54
@ TOTEM_TRANSPORT_UDPU
Definition: totem.h:144
@ TOTEM_TRANSPORT_KNET
Definition: totem.h:145
@ TOTEM_TRANSPORT_UDP
Definition: totem.h:143
#define MINIMUM_TIMEOUT
Definition: totemconfig.c:77
#define TOKEN_RETRANSMITS_BEFORE_LOSS_CONST
Definition: totemconfig.c:68
#define JOIN_TIMEOUT
Definition: totemconfig.c:72
#define DEFAULT_PORT
Definition: totemconfig.c:95
#define MAX_MESSAGES
Definition: totemconfig.c:81
#define MAX_NETWORK_DELAY
Definition: totemconfig.c:79
#define KNET_PONG_COUNT
Definition: totemconfig.c:91
#define KNET_PMTUD_INTERVAL
Definition: totemconfig.c:92
#define MINIMUM_TIMEOUT_HOLD
Definition: totemconfig.c:78
#define TOKEN_COEFFICIENT
Definition: totemconfig.c:71
#define SEQNO_UNCHANGED_CONST
Definition: totemconfig.c:76
void totem_volatile_config_read(struct totem_config *totem_config, icmap_map_t temp_map, const char *deleted_key)
Definition: totemconfig.c:305
void totemconfig_commit_new_params(struct totem_config *totem_config, icmap_map_t map)
Definition: totemconfig.c:2366
int totem_config_read(struct totem_config *totem_config, const char **error_string, uint64_t *warnings)
Definition: totemconfig.c:1735
#define MISS_COUNT_CONST
Definition: totemconfig.c:82
int totem_volatile_config_validate(struct totem_config *totem_config, icmap_map_t temp_map, const char **error_string)
Definition: totemconfig.c:370
#define TOKEN_WARNING
Definition: totemconfig.c:70
int totem_reread_crypto_config(struct totem_config *totem_config, icmap_map_t map, const char **error_string)
Definition: totemconfig.c:2238
#define MERGE_TIMEOUT
Definition: totemconfig.c:73
#define KNET_PING_PRECISION
Definition: totemconfig.c:90
int totem_config_validate(struct totem_config *totem_config, const char **error_string)
Definition: totemconfig.c:1950
#define BLOCK_UNLISTED_IPS
Definition: totemconfig.c:83
#define KNET_DEFAULT_TRANSPORT
Definition: totemconfig.c:93
#define UDP_NETMTU
Definition: totemconfig.c:85
#define FAIL_TO_RECV_CONST
Definition: totemconfig.c:75
#define WINDOW_SIZE
Definition: totemconfig.c:80
#define DOWNCHECK_TIMEOUT
Definition: totemconfig.c:74
#define TOKEN_TIMEOUT
Definition: totemconfig.c:69
int totemconfig_configure_new_params(struct totem_config *totem_config, icmap_map_t map, const char **error_string)
Definition: totemconfig.c:2343
int totem_config_keyread(struct totem_config *totem_config, icmap_map_t map, const char **error_string)
Definition: totemconfig.c:2166
#define TOTEM_CONFIG_BINDNETADDR_NODELIST_SET
Definition: totemconfig.h:48
#define TOTEM_CONFIG_WARNING_MEMBERS_IGNORED
Definition: totemconfig.h:45
#define TOTEM_CONFIG_WARNING_MEMBERS_DEPRECATED
Definition: totemconfig.h:46
#define TOTEM_CONFIG_WARNING_TOTEM_NODEID_IGNORED
Definition: totemconfig.h:47
int totemip_parse(struct totem_ip_address *totemip, const char *addr, enum totem_ip_version_enum ip_version)
Definition: totemip.c:306
const char * totemip_print(const struct totem_ip_address *addr)
Definition: totemip.c:256
totem_ip_version_enum
Definition: totemip.h:70
@ TOTEM_IP_VERSION_6_4
Definition: totemip.h:74
@ TOTEM_IP_VERSION_4
Definition: totemip.h:71
@ TOTEM_IP_VERSION_6
Definition: totemip.h:72
@ TOTEM_IP_VERSION_4_6
Definition: totemip.h:73
int totemip_is_mcast(struct totem_ip_address *addr)
Definition: totemip.c:134
int totempg_iface_set(struct totem_ip_address *interface_addr, unsigned short ip_port, unsigned int iface_no)
Definition: totempg.c:1434
int totempg_reconfigure(void)
Definition: totempg.c:1566
int totempg_member_remove(const struct totem_ip_address *member, int ring_no)
Definition: totempg.c:1559
int totempg_member_add(const struct totem_ip_address *member, int ring_no)
Definition: totempg.c:1552