proxmox-mirrors/mirror_corosync
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_corosync synced 2025-10-04 11:47:18 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
1aaa2467b9
mirror_corosync/exec/totemconfig.c
liangxin1300 1aaa2467b9 totemconfig: improve linknumber checking 
Check whether linknumber larger than INTERFACE_MAX and display error if
so.

Signed-off-by: liangxin1300 <XLiang@suse.com>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>
2020-09-18 12:12:26 +02:00

2397 lines
73 KiB
C
Raw Blame History

/*
* Copyright (c) 2002-2005 MontaVista Software, Inc.
* Copyright (c) 2006-2019 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Steven Dake (sdake@redhat.com)
* Jan Friesse (jfriesse@redhat.com)
* Chrissie Caulfield (ccaulfie@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ifaddrs.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/param.h>
#include <sys/utsname.h>
#include <corosync/swab.h>
#include <qb/qblist.h>
#include <qb/qbdefs.h>
#include <libknet.h>
#include <corosync/totem/totem.h>
#include <corosync/config.h>
#include <corosync/logsys.h>
#include <corosync/icmap.h>
#include "util.h"
#include "totemconfig.h"
#define TOKEN_RETRANSMITS_BEFORE_LOSS_CONST 4
#define TOKEN_TIMEOUT 1000
#define TOKEN_WARNING 75
#define TOKEN_COEFFICIENT 650
#define JOIN_TIMEOUT 50
#define MERGE_TIMEOUT 200
#define DOWNCHECK_TIMEOUT 1000
#define FAIL_TO_RECV_CONST 2500
#define SEQNO_UNCHANGED_CONST 30
#define MINIMUM_TIMEOUT (int)(1000/HZ)*3
#define MINIMUM_TIMEOUT_HOLD (int)(MINIMUM_TIMEOUT * 0.8 - (1000/HZ))
#define MAX_NETWORK_DELAY 50
#define WINDOW_SIZE 50
#define MAX_MESSAGES 17
#define MISS_COUNT_CONST 5
#define BLOCK_UNLISTED_IPS 1
/* Currently all but PONG_COUNT match the defaults in libknet.h */
#define KNET_PING_INTERVAL 1000
#define KNET_PING_TIMEOUT 2000
#define KNET_PING_PRECISION 2048
#define KNET_PONG_COUNT 2
#define KNET_PMTUD_INTERVAL 30
#define KNET_DEFAULT_TRANSPORT KNET_TRANSPORT_UDP
#define DEFAULT_PORT 5405
static char error_string_response[768];
static void add_totem_config_notification(struct totem_config *totem_config);
static void *totem_get_param_by_name(struct totem_config *totem_config, const char *param_name)
{
if (strcmp(param_name, "totem.token") == 0)
return &totem_config->token_timeout;
if (strcmp(param_name, "totem.token_warning") == 0)
return &totem_config->token_warning;
if (strcmp(param_name, "totem.token_retransmit") == 0)
return &totem_config->token_retransmit_timeout;
if (strcmp(param_name, "totem.hold") == 0)
return &totem_config->token_hold_timeout;
if (strcmp(param_name, "totem.token_retransmits_before_loss_const") == 0)
return &totem_config->token_retransmits_before_loss_const;
if (strcmp(param_name, "totem.join") == 0)
return &totem_config->join_timeout;
if (strcmp(param_name, "totem.send_join") == 0)
return &totem_config->send_join_timeout;
if (strcmp(param_name, "totem.consensus") == 0)
return &totem_config->consensus_timeout;
if (strcmp(param_name, "totem.merge") == 0)
return &totem_config->merge_timeout;
if (strcmp(param_name, "totem.downcheck") == 0)
return &totem_config->downcheck_timeout;
if (strcmp(param_name, "totem.fail_recv_const") == 0)
return &totem_config->fail_to_recv_const;
if (strcmp(param_name, "totem.seqno_unchanged_const") == 0)
return &totem_config->seqno_unchanged_const;
if (strcmp(param_name, "totem.heartbeat_failures_allowed") == 0)
return &totem_config->heartbeat_failures_allowed;
if (strcmp(param_name, "totem.max_network_delay") == 0)
return &totem_config->max_network_delay;
if (strcmp(param_name, "totem.window_size") == 0)
return &totem_config->window_size;
if (strcmp(param_name, "totem.max_messages") == 0)
return &totem_config->max_messages;
if (strcmp(param_name, "totem.miss_count_const") == 0)
return &totem_config->miss_count_const;
if (strcmp(param_name, "totem.knet_pmtud_interval") == 0)
return &totem_config->knet_pmtud_interval;
if (strcmp(param_name, "totem.knet_compression_threshold") == 0)
return &totem_config->knet_compression_threshold;
if (strcmp(param_name, "totem.knet_compression_level") == 0)
return &totem_config->knet_compression_level;
if (strcmp(param_name, "totem.knet_compression_model") == 0)
return totem_config->knet_compression_model;
if (strcmp(param_name, "totem.block_unlisted_ips") == 0)
return &totem_config->block_unlisted_ips;
return NULL;
}
/*
* Read key_name from icmap. If key is not found or key_name == delete_key or if allow_zero is false
* and readed value is zero, default value is used and stored into totem_config.
*/
static void totem_volatile_config_set_uint32_value (struct totem_config *totem_config, icmap_map_t map,
const char *key_name, const char *deleted_key, unsigned int default_value,
int allow_zero_value)
{
char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
if (icmap_get_uint32_r(map, key_name, totem_get_param_by_name(totem_config, key_name)) != CS_OK ||
(deleted_key != NULL && strcmp(deleted_key, key_name) == 0) ||
(!allow_zero_value && *(uint32_t *)totem_get_param_by_name(totem_config, key_name) == 0)) {
*(uint32_t *)totem_get_param_by_name(totem_config, key_name) = default_value;
}
/*
* Store totem_config value to cmap runtime section
*/
if (strlen("runtime.config.") + strlen(key_name) >= ICMAP_KEYNAME_MAXLEN) {
/*
* This shouldn't happen
*/
return ;
}
strcpy(runtime_key_name, "runtime.config.");
strcat(runtime_key_name, key_name);
icmap_set_uint32_r(map, runtime_key_name, *(uint32_t *)totem_get_param_by_name(totem_config, key_name));
}
static void totem_volatile_config_set_int32_value (struct totem_config *totem_config, icmap_map_t map,
const char *key_name, const char *deleted_key, int default_value,
int allow_zero_value)
{
char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
if (icmap_get_int32_r(map, key_name, totem_get_param_by_name(totem_config, key_name)) != CS_OK ||
(deleted_key != NULL && strcmp(deleted_key, key_name) == 0) ||
(!allow_zero_value && *(int32_t *)totem_get_param_by_name(totem_config, key_name) == 0)) {
*(int32_t *)totem_get_param_by_name(totem_config, key_name) = default_value;
}
/*
* Store totem_config value to cmap runtime section
*/
if (strlen("runtime.config.") + strlen(key_name) >= ICMAP_KEYNAME_MAXLEN) {
/*
* This shouldn't happen
*/
return ;
}
strcpy(runtime_key_name, "runtime.config.");
strcat(runtime_key_name, key_name);
icmap_set_int32_r(map, runtime_key_name, *(int32_t *)totem_get_param_by_name(totem_config, key_name));
}
static void totem_volatile_config_set_string_value (struct totem_config *totem_config, icmap_map_t map,
const char *key_name, const char *deleted_key, const char *default_value)
{
char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
int res;
char *new_config_value;
const void *config_value;
config_value = totem_get_param_by_name(totem_config, key_name);
res = icmap_get_string_r(map, key_name, (char **)&new_config_value);
if (res != CS_OK ||
(deleted_key != NULL && strcmp(deleted_key, key_name) == 0)) {
/* Slightly pointless use of strncpy but it keeps coverity happy */
strncpy((char *)config_value, default_value, CONFIG_STRING_LEN_MAX);
} else {
strncpy((char *)config_value, new_config_value, CONFIG_STRING_LEN_MAX);
}
if (res == CS_OK) {
free(new_config_value);
}
/*
* Store totem_config value to cmap runtime section
*/
if (strlen("runtime.config.") + strlen(key_name) >= ICMAP_KEYNAME_MAXLEN) {
/*
* This shouldn't happen
*/
return ;
}
strcpy(runtime_key_name, "runtime.config.");
strcat(runtime_key_name, key_name);
(void)icmap_set_string_r(map, runtime_key_name, (char *)config_value);
}
/*
* Read string value stored in key_name from icmap, use it as a boolean (yes/no) type, convert it
* to integer value (1/0) and store into totem_config.
*
* If key is not found or key_name == delete_key default value is used
* and stored into totem_config.
*/
static void totem_volatile_config_set_boolean_value (struct totem_config *totem_config, icmap_map_t map,
const char *key_name, const char *deleted_key, unsigned int default_value)
{
char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
char *str;
int val;
str = NULL;
val = default_value;
if ((deleted_key != NULL && strcmp(deleted_key, key_name) == 0) ||
(icmap_get_string_r(map, key_name, &str) != CS_OK)) {
/*
* Do nothing. str is NULL (icmap_get_string ether not called or
* not changed str).
*/
} else {
if (strcmp(str, "yes") == 0) {
val = 1;
} else if (strcmp(str, "no") == 0) {
val = 0;
}
free(str);
}
/*
* Store totem_config value to cmap runtime section
*/
if (strlen("runtime.config.") + strlen(key_name) >= ICMAP_KEYNAME_MAXLEN) {
/*
* This shouldn't happen
*/
return ;
}
strcpy(runtime_key_name, "runtime.config.");
strcat(runtime_key_name, key_name);
*(uint32_t *)totem_get_param_by_name(totem_config, key_name) = val;
icmap_set_uint32_r(map, runtime_key_name, val);
}
/*
* Read and validate config values from cmap and store them into totem_config. If key doesn't exists,
* default value is stored. deleted_key is name of key beeing processed by delete operation
* from cmap. It is considered as non existing even if it can be read. Can be NULL.
*/
void totem_volatile_config_read (struct totem_config *totem_config, icmap_map_t temp_map, const char *deleted_key)
{
uint32_t u32;
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.token_retransmits_before_loss_const", deleted_key,
TOKEN_RETRANSMITS_BEFORE_LOSS_CONST, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.token", deleted_key, TOKEN_TIMEOUT, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.token_warning", deleted_key, TOKEN_WARNING, 1);
if (totem_config->interfaces[0].member_count > 2) {
u32 = TOKEN_COEFFICIENT;
icmap_get_uint32_r(temp_map, "totem.token_coefficient", &u32);
totem_config->token_timeout += (totem_config->interfaces[0].member_count - 2) * u32;
/*
* Store totem_config value to cmap runtime section
*/
icmap_set_uint32_r(temp_map, "runtime.config.totem.token", totem_config->token_timeout);
}
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.max_network_delay", deleted_key, MAX_NETWORK_DELAY, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.window_size", deleted_key, WINDOW_SIZE, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.max_messages", deleted_key, MAX_MESSAGES, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.miss_count_const", deleted_key, MISS_COUNT_CONST, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.knet_pmtud_interval", deleted_key, KNET_PMTUD_INTERVAL, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.token_retransmit", deleted_key,
(int)(totem_config->token_timeout / (totem_config->token_retransmits_before_loss_const + 0.2)), 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.hold", deleted_key,
(int)(totem_config->token_retransmit_timeout * 0.8 - (1000/HZ)), 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.join", deleted_key, JOIN_TIMEOUT, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.consensus", deleted_key,
(int)(float)(1.2 * totem_config->token_timeout), 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.merge", deleted_key, MERGE_TIMEOUT, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.downcheck", deleted_key, DOWNCHECK_TIMEOUT, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.fail_recv_const", deleted_key, FAIL_TO_RECV_CONST, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.seqno_unchanged_const", deleted_key,
SEQNO_UNCHANGED_CONST, 0);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.send_join", deleted_key, 0, 1);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.heartbeat_failures_allowed", deleted_key, 0, 1);
totem_volatile_config_set_uint32_value(totem_config, temp_map, "totem.knet_compression_threshold", deleted_key, 0, 1);
totem_volatile_config_set_int32_value(totem_config, temp_map, "totem.knet_compression_level", deleted_key, 0, 1);
totem_volatile_config_set_string_value(totem_config, temp_map, "totem.knet_compression_model", deleted_key, "none");
totem_volatile_config_set_boolean_value(totem_config, temp_map, "totem.block_unlisted_ips", deleted_key,
BLOCK_UNLISTED_IPS);
}
int totem_volatile_config_validate (
struct totem_config *totem_config,
icmap_map_t temp_map,
const char **error_string)
{
/* Static just to keep them off the stack */
static char local_error_reason[512];
static char addr_str_buf[INET6_ADDRSTRLEN];
const char *error_reason = local_error_reason;
char name_key[ICMAP_KEYNAME_MAXLEN];
char *name_str;
int i, j, num_configured, members;
uint32_t tmp_config_value;
if (totem_config->max_network_delay < MINIMUM_TIMEOUT) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The max_network_delay parameter (%d ms) may not be less than (%d ms).",
totem_config->max_network_delay, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->token_timeout < MINIMUM_TIMEOUT) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The token timeout parameter (%d ms) may not be less than (%d ms).",
totem_config->token_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->token_warning > 100 || totem_config->token_warning < 0) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The token warning parameter (%d%%) must be between 0 (disabled) and 100.",
totem_config->token_warning);
goto parse_error;
}
if (totem_config->token_retransmit_timeout < MINIMUM_TIMEOUT) {
if (icmap_get_uint32_r(temp_map, "totem.token_retransmit", &tmp_config_value) == CS_OK) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The token retransmit timeout parameter (%d ms) may not be less than (%d ms).",
totem_config->token_retransmit_timeout, MINIMUM_TIMEOUT);
goto parse_error;
} else {
snprintf (local_error_reason, sizeof(local_error_reason),
"Not appropriate token or token_retransmits_before_loss_const value set");
goto parse_error;
}
}
if (totem_config->token_hold_timeout < MINIMUM_TIMEOUT_HOLD) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The token hold timeout parameter (%d ms) may not be less than (%d ms).",
totem_config->token_hold_timeout, MINIMUM_TIMEOUT_HOLD);
goto parse_error;
}
if (totem_config->join_timeout < MINIMUM_TIMEOUT) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The join timeout parameter (%d ms) may not be less than (%d ms).",
totem_config->join_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->consensus_timeout < MINIMUM_TIMEOUT) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The consensus timeout parameter (%d ms) may not be less than (%d ms).",
totem_config->consensus_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->consensus_timeout < totem_config->join_timeout) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The consensus timeout parameter (%d ms) may not be less than join timeout (%d ms).",
totem_config->consensus_timeout, totem_config->join_timeout);
goto parse_error;
}
if (totem_config->merge_timeout < MINIMUM_TIMEOUT) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The merge timeout parameter (%d ms) may not be less than (%d ms).",
totem_config->merge_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
if (totem_config->downcheck_timeout < MINIMUM_TIMEOUT) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The downcheck timeout parameter (%d ms) may not be less than (%d ms).",
totem_config->downcheck_timeout, MINIMUM_TIMEOUT);
goto parse_error;
}
/* Check that we have nodelist 'name' if there is more than one link */
num_configured = 0;
members = -1;
for (i = 0; i < INTERFACE_MAX; i++) {
if (totem_config->interfaces[i].configured) {
if (num_configured == 0) {
members = totem_config->interfaces[i].member_count;
}
num_configured++;
}
}
if (num_configured > 1) {
/*
* This assert is here just to make compiler happy
*/
assert(members != -1);
for (i=0; i < members; i++) {
snprintf(name_key, sizeof(name_key), "nodelist.node.%d.name", i);
if (icmap_get_string_r(temp_map, name_key, &name_str) != CS_OK) {
snprintf (local_error_reason, sizeof(local_error_reason),
"for a multi-link configuration, all nodes must have a 'name' attribute");
goto parse_error;
}
free(name_str);
}
for (i=0; i < INTERFACE_MAX; i++) {
if (!totem_config->interfaces[i].configured) {
continue;
}
if (totem_config->interfaces[i].member_count != members) {
snprintf (local_error_reason, sizeof(local_error_reason),
"Not all nodes have the same number of links");
goto parse_error;
}
}
}
/* Verify that all nodes on the same link have the same IP family */
for (i=0; i < INTERFACE_MAX; i++) {
for (j=1; j<totem_config->interfaces[i].member_count; j++) {
if (totem_config->interfaces[i].configured) {
if (totem_config->interfaces[i].member_list[j].family !=
totem_config->interfaces[i].member_list[0].family) {
memcpy(addr_str_buf,
totemip_print(&(totem_config->interfaces[i].member_list[j])),
sizeof(addr_str_buf));
snprintf (local_error_reason, sizeof(local_error_reason),
"Nodes for link %d have different IP families "
"(compared %s with %s)", i,
addr_str_buf,
totemip_print(&(totem_config->interfaces[i].member_list[0])));
goto parse_error;
}
}
}
}
return 0;
parse_error:
snprintf (error_string_response, sizeof(error_string_response),
"parse error in config: %s\n", error_reason);
*error_string = error_string_response;
return (-1);
}
static int totem_get_crypto(struct totem_config *totem_config, icmap_map_t map, const char **error_string)
{
char *str;
const char *tmp_cipher;
const char *tmp_hash;
const char *tmp_model;
tmp_hash = "none";
tmp_cipher = "none";
tmp_model = "none";
if (icmap_get_string_r(map, "totem.crypto_model", &str) == CS_OK) {
if (strcmp(str, "nss") == 0) {
tmp_model = "nss";
}
if (strcmp(str, "openssl") == 0) {
tmp_model = "openssl";
}
free(str);
} else {
tmp_model = "nss";
}
if (icmap_get_string_r(map, "totem.secauth", &str) == CS_OK) {
if (strcmp(str, "on") == 0) {
tmp_cipher = "aes256";
tmp_hash = "sha256";
}
free(str);
}
if (icmap_get_string_r(map, "totem.crypto_cipher", &str) == CS_OK) {
if (strcmp(str, "none") == 0) {
tmp_cipher = "none";
}
if (strcmp(str, "aes256") == 0) {
tmp_cipher = "aes256";
}
if (strcmp(str, "aes192") == 0) {
tmp_cipher = "aes192";
}
if (strcmp(str, "aes128") == 0) {
tmp_cipher = "aes128";
}
free(str);
}
if (icmap_get_string_r(map, "totem.crypto_hash", &str) == CS_OK) {
if (strcmp(str, "none") == 0) {
tmp_hash = "none";
}
if (strcmp(str, "md5") == 0) {
tmp_hash = "md5";
}
if (strcmp(str, "sha1") == 0) {
tmp_hash = "sha1";
}
if (strcmp(str, "sha256") == 0) {
tmp_hash = "sha256";
}
if (strcmp(str, "sha384") == 0) {
tmp_hash = "sha384";
}
if (strcmp(str, "sha512") == 0) {
tmp_hash = "sha512";
}
free(str);
}
if ((strcmp(tmp_cipher, "none") != 0) &&
(strcmp(tmp_hash, "none") == 0)) {
*error_string = "crypto_cipher requires crypto_hash with value other than none";
return -1;
}
if (strcmp(tmp_model, "none") == 0) {
*error_string = "crypto_model should be 'nss' or 'openssl'";
return -1;
}
if (strcmp(tmp_cipher, totem_config->crypto_cipher_type) ||
strcmp(tmp_hash, totem_config->crypto_hash_type) ||
strcmp(tmp_model, totem_config->crypto_model)) {
totem_config->crypto_changed = 1;
}
strncpy(totem_config->crypto_cipher_type, tmp_cipher, CONFIG_STRING_LEN_MAX);
strncpy(totem_config->crypto_hash_type, tmp_hash, CONFIG_STRING_LEN_MAX);
strncpy(totem_config->crypto_model, tmp_model, CONFIG_STRING_LEN_MAX);
return 0;
}
static int nodelist_byname(icmap_map_t map, const char *find_name, int strip_domain)
{
icmap_iter_t iter;
const char *iter_key;
char name_str[ICMAP_KEYNAME_MAXLEN];
int res = 0;
unsigned int node_pos;
char *name;
unsigned int namelen;
iter = icmap_iter_init_r(map, "nodelist.node.");
while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos, name_str);
if (res != 2) {
continue;
}
/* ring0_addr is allowed as a fallback */
if (strcmp(name_str, "name") && strcmp(name_str, "ring0_addr")) {
continue;
}
if (icmap_get_string_r(map, iter_key, &name) != CS_OK) {
continue;
}
namelen = strlen(name);
if (strip_domain) {
char *dot;
dot = strchr(name, '.');
if (dot) {
namelen = name - dot - 1;
}
}
if (strncmp(find_name, name, namelen) == 0 &&
strlen(find_name) == strlen(name)) {
icmap_iter_finalize(iter);
return node_pos;
}
}
icmap_iter_finalize(iter);
return -1;
}
/* Compare two addresses - only address part (sin_addr/sin6_addr) is checked */
static int ipaddr_equal(const struct sockaddr *addr1, const struct sockaddr *addr2)
{
int addrlen = 0;
const void *addr1p, *addr2p;
if (addr1->sa_family != addr2->sa_family)
return 0;
switch (addr1->sa_family) {
case AF_INET:
addrlen = sizeof(struct in_addr);
addr1p = &((struct sockaddr_in *)addr1)->sin_addr;
addr2p = &((struct sockaddr_in *)addr2)->sin_addr;
break;
case AF_INET6:
addrlen = sizeof(struct in6_addr);
addr1p = &((struct sockaddr_in6 *)addr1)->sin6_addr;
addr2p = &((struct sockaddr_in6 *)addr2)->sin6_addr;
break;
default:
assert(0);
}
return (memcmp(addr1p, addr2p, addrlen) == 0);
}
/* Finds the local node and returns its position in the nodelist.
* Uses nodelist.local_node_pos as a cache to save effort
*/
static int find_local_node(icmap_map_t map, int use_cache)
{
char nodename2[PATH_MAX];
char name_str[ICMAP_KEYNAME_MAXLEN];
icmap_iter_t iter;
const char *iter_key;
unsigned int cached_pos;
char *dot = NULL;
const char *node;
struct ifaddrs *ifa, *ifa_list;
struct sockaddr *sa;
int found = 0;
int node_pos = -1;
int res;
struct utsname utsname;
/* Check for cached value first */
if (use_cache) {
if (icmap_get_uint32("nodelist.local_node_pos", &cached_pos) == CS_OK) {
return cached_pos;
}
}
res = uname(&utsname);
if (res) {
return -1;
}
node = utsname.nodename;
/* 1. Exact match */
node_pos = nodelist_byname(map, node, 0);
if (node_pos > -1) {
found = 1;
goto ret_found;
}
/* 2. Try to match with increasingly more
* specific versions of it
*/
strcpy(nodename2, node);
dot = strrchr(nodename2, '.');
while (dot) {
*dot = '\0';
node_pos = nodelist_byname(map, nodename2, 0);
if (node_pos > -1) {
found = 1;
goto ret_found;
}
dot = strrchr(nodename2, '.');
}
node_pos = nodelist_byname(map, nodename2, 1);
if (node_pos > -1) {
found = 1;
goto ret_found;
}
/*
* The corosync.conf name may not be related to uname at all,
* they may match a hostname on some network interface.
*/
if (getifaddrs(&ifa_list))
return -1;
for (ifa = ifa_list; ifa; ifa = ifa->ifa_next) {
socklen_t salen = 0;
/* Restore this */
strcpy(nodename2, node);
sa = ifa->ifa_addr;
if (!sa) {
continue;
}
if (sa->sa_family != AF_INET && sa->sa_family != AF_INET6) {
continue;
}
if (sa->sa_family == AF_INET) {
salen = sizeof(struct sockaddr_in);
}
if (sa->sa_family == AF_INET6) {
salen = sizeof(struct sockaddr_in6);
}
if (getnameinfo(sa, salen,
nodename2, sizeof(nodename2),
NULL, 0, 0) == 0) {
node_pos = nodelist_byname(map, nodename2, 0);
if (node_pos > -1) {
found = 1;
goto out;
}
/* Truncate this name and try again */
dot = strchr(nodename2, '.');
if (dot) {
*dot = '\0';
node_pos = nodelist_byname(map, nodename2, 0);
if (node_pos > -1) {
found = 1;
goto out;
}
}
}
/* See if it's the IP address that's in corosync.conf */
if (getnameinfo(sa, sizeof(*sa),
nodename2, sizeof(nodename2),
NULL, 0, NI_NUMERICHOST))
continue;
node_pos = nodelist_byname(map, nodename2, 0);
if (node_pos > -1) {
found = 1;
goto out;
}
}
out:
if (found) {
freeifaddrs(ifa_list);
goto ret_found;
}
/*
* This section covers the usecase where the nodename specified in cluster.conf
* is an alias specified in /etc/hosts. For example:
* <ipaddr> hostname alias1 alias2
* and <clusternode name="alias2">
* the above calls use uname and getnameinfo does not return aliases.
* here we take the name specified in cluster.conf, resolve it to an address
* and then compare against all known local ip addresses.
* if we have a match, we found our nodename. In theory this chunk of code
* could replace all the checks above, but let's avoid any possible regressions
* and use it as last.
*/
iter = icmap_iter_init_r(map, "nodelist.node.");
while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
char *dbnodename = NULL;
struct addrinfo hints;
struct addrinfo *result = NULL, *rp = NULL;
res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos, name_str);
if (res != 2) {
continue;
}
/* 'ring0_addr' is allowed as a fallback, but 'name' will be found first
* because the names are in alpha order.
*/
if (strcmp(name_str, "name") && strcmp(name_str, "ring0_addr")) {
continue;
}
if (icmap_get_string_r(map, iter_key, &dbnodename) != CS_OK) {
continue;
}
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = 0;
hints.ai_protocol = IPPROTO_UDP;
if (getaddrinfo(dbnodename, NULL, &hints, &result)) {
continue;
}
for (rp = result; rp != NULL; rp = rp->ai_next) {
for (ifa = ifa_list; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr &&
ipaddr_equal(rp->ai_addr, ifa->ifa_addr)) {
freeaddrinfo(result);
found = 1;
goto out2;
}
}
}
freeaddrinfo(result);
}
out2:
icmap_iter_finalize(iter);
freeifaddrs(ifa_list);
ret_found:
if (found) {
res = icmap_set_uint32_r(map, "nodelist.local_node_pos", node_pos);
}
return node_pos;
}
static enum totem_ip_version_enum totem_config_get_ip_version(struct totem_config *totem_config)
{
enum totem_ip_version_enum res;
char *str;
res = TOTEM_IP_VERSION_6_4;
if (totem_config->transport_number == TOTEM_TRANSPORT_UDP) {
res = TOTEM_IP_VERSION_4;
}
if (icmap_get_string("totem.ip_version", &str) == CS_OK) {
if (strcmp(str, "ipv4") == 0) {
res = TOTEM_IP_VERSION_4;
}
if (strcmp(str, "ipv6") == 0) {
res = TOTEM_IP_VERSION_6;
}
if (strcmp(str, "ipv6-4") == 0) {
res = TOTEM_IP_VERSION_6_4;
}
if (strcmp(str, "ipv4-6") == 0) {
res = TOTEM_IP_VERSION_4_6;
}
free(str);
}
return (res);
}
static uint16_t generate_cluster_id (const char *cluster_name)
{
int i;
int value = 0;
for (i = 0; i < strlen(cluster_name); i++) {
value <<= 1;
value += cluster_name[i];
}
return (value & 0xFFFF);
}
static int get_cluster_mcast_addr (
const char *cluster_name,
unsigned int linknumber,
enum totem_ip_version_enum ip_version,
struct totem_ip_address *res)
{
uint16_t clusterid;
char addr[INET6_ADDRSTRLEN + 1];
int err;
if (cluster_name == NULL) {
return (-1);
}
clusterid = generate_cluster_id(cluster_name) + linknumber;
memset (res, 0, sizeof(*res));
switch (ip_version) {
case TOTEM_IP_VERSION_4:
case TOTEM_IP_VERSION_4_6:
snprintf(addr, sizeof(addr), "239.192.%d.%d", clusterid >> 8, clusterid % 0xFF);
break;
case TOTEM_IP_VERSION_6:
case TOTEM_IP_VERSION_6_4:
snprintf(addr, sizeof(addr), "ff15::%x", clusterid);
break;
default:
/*
* Unknown family
*/
return (-1);
}
err = totemip_parse (res, addr, ip_version);
return (err);
}
static unsigned int generate_nodeid(
struct totem_config *totem_config,
char *addr)
{
unsigned int nodeid;
struct totem_ip_address totemip;
/* AF_INET hard-coded here because auto-generated nodeids
are only for IPv4 */
if (totemip_parse(&totemip, addr, TOTEM_IP_VERSION_4) != 0)
return -1;
memcpy (&nodeid, &totemip.addr, sizeof (unsigned int));
#if __BYTE_ORDER == __LITTLE_ENDIAN
nodeid = swab32 (nodeid);
#endif
if (totem_config->clear_node_high_bit) {
nodeid &= 0x7FFFFFFF;
}
return nodeid;
}
static int check_for_duplicate_nodeids(
struct totem_config *totem_config,
const char **error_string)
{
icmap_iter_t iter;
icmap_iter_t subiter;
const char *iter_key;
int res = 0;
int retval = 0;
char tmp_key[ICMAP_KEYNAME_MAXLEN];
char *ring0_addr=NULL;
char *ring0_addr1=NULL;
unsigned int node_pos;
unsigned int node_pos1;
unsigned int last_node_pos = -1;
unsigned int nodeid;
unsigned int nodeid1;
int autogenerated;
iter = icmap_iter_init("nodelist.node.");
while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos, tmp_key);
if (res != 2) {
continue;
}
/*
* This relies on the fact the icmap keys are always returned in order
* so all of the keys for a node will be grouped together. We're basically
* just running the code below once for each node.
*/
if (last_node_pos == node_pos) {
continue;
}
last_node_pos = node_pos;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", node_pos);
autogenerated = 0;
/* Generated nodeids are only allowed for UDP/UDPU so ring0_addr is valid here */
if (icmap_get_uint32(tmp_key, &nodeid) != CS_OK) {
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", node_pos);
if (icmap_get_string(tmp_key, &ring0_addr) != CS_OK) {
continue;
}
/* Generate nodeid so we can check that auto-generated nodeids don't clash either */
nodeid = generate_nodeid(totem_config, ring0_addr);
if (nodeid == -1) {
continue;
}
autogenerated = 1;
}
node_pos1 = 0;
subiter = icmap_iter_init("nodelist.node.");
while (((iter_key = icmap_iter_next(subiter, NULL, NULL)) != NULL) && (node_pos1 < node_pos)) {
res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos1, tmp_key);
if ((res != 2) || (node_pos1 >= node_pos)) {
continue;
}
if (strcmp(tmp_key, "nodeid") != 0) {
continue;
}
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", node_pos1);
if (icmap_get_uint32(tmp_key, &nodeid1) != CS_OK) {
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", node_pos1);
if (icmap_get_string(tmp_key, &ring0_addr1) != CS_OK) {
continue;
}
nodeid1 = generate_nodeid(totem_config, ring0_addr1);
if (nodeid1 == -1) {
continue;
}
}
if (nodeid == nodeid1) {
retval = -1;
snprintf (error_string_response, sizeof(error_string_response),
"Nodeid %u%s%s%s appears twice in corosync.conf", nodeid,
autogenerated?"(autogenerated from ":"",
autogenerated?ring0_addr:"",
autogenerated?")":"");
log_printf (LOGSYS_LEVEL_ERROR, error_string_response);
*error_string = error_string_response;
break;
}
}
icmap_iter_finalize(subiter);
}
icmap_iter_finalize(iter);
return retval;
}
/*
* This needs to be done last of all. It would be nice to do it when reading the
* interface params, but the totem params need to have them to be read first. We
* need both, so this is a way round that circular dependancy.
*/
static void calc_knet_ping_timers(struct totem_config *totem_config)
{
char runtime_key_name[ICMAP_KEYNAME_MAXLEN];
int interface;
for (interface = 0; interface < INTERFACE_MAX; interface++) {
if (totem_config->interfaces[interface].configured) {
if (!totem_config->interfaces[interface].knet_pong_count) {
totem_config->interfaces[interface].knet_pong_count = KNET_PONG_COUNT;
}
if (!totem_config->interfaces[interface].knet_ping_timeout) {
totem_config->interfaces[interface].knet_ping_timeout =
totem_config->token_timeout / totem_config->interfaces[interface].knet_pong_count;
}
snprintf(runtime_key_name, sizeof(runtime_key_name),
"runtime.config.totem.interface.%d.knet_ping_timeout", interface);
icmap_set_uint32(runtime_key_name, totem_config->interfaces[interface].knet_ping_timeout);
if (!totem_config->interfaces[interface].knet_ping_interval) {
totem_config->interfaces[interface].knet_ping_interval =
totem_config->token_timeout / (totem_config->interfaces[interface].knet_pong_count * 2);
}
snprintf(runtime_key_name, sizeof(runtime_key_name),
"runtime.config.totem.interface.%d.knet_ping_interval", interface);
icmap_set_uint32(runtime_key_name, totem_config->interfaces[interface].knet_ping_interval);
}
}
}
/*
* Compute difference between two set of totem interface arrays and commit it.
* set1 and set2
* are changed so for same ring, ip existing in both set1 and set2 are cleared
* (set to 0), and ips which are only in set1 or set2 remains untouched.
* totempg_node_add/remove is called.
*/
static void compute_and_set_totempg_interfaces(struct totem_interface *set1,
struct totem_interface *set2)
{
int ring_no, set1_pos, set2_pos;
struct totem_ip_address empty_ip_address;
memset(&empty_ip_address, 0, sizeof(empty_ip_address));
for (ring_no = 0; ring_no < INTERFACE_MAX; ring_no++) {
if (!set1[ring_no].configured && !set2[ring_no].configured) {
continue;
}
for (set1_pos = 0; set1_pos < set1[ring_no].member_count; set1_pos++) {
for (set2_pos = 0; set2_pos < set2[ring_no].member_count; set2_pos++) {
/*
* For current ring_no remove all set1 items existing
* in set2
*/
if (memcmp(&set1[ring_no].member_list[set1_pos],
&set2[ring_no].member_list[set2_pos],
sizeof(struct totem_ip_address)) == 0) {
memset(&set1[ring_no].member_list[set1_pos], 0,
sizeof(struct totem_ip_address));
memset(&set2[ring_no].member_list[set2_pos], 0,
sizeof(struct totem_ip_address));
}
}
}
}
for (ring_no = 0; ring_no < INTERFACE_MAX; ring_no++) {
for (set1_pos = 0; set1_pos < set1[ring_no].member_count; set1_pos++) {
/*
* All items which remain in set1 and don't exist in set2 any more
* have to be removed.
*/
if (memcmp(&set1[ring_no].member_list[set1_pos], &empty_ip_address, sizeof(empty_ip_address)) != 0) {
log_printf(LOGSYS_LEVEL_DEBUG,
"removing dynamic member %s for ring %u",
totemip_print(&set1[ring_no].member_list[set1_pos]),
ring_no);
totempg_member_remove(&set1[ring_no].member_list[set1_pos], ring_no);
}
}
if (!set2[ring_no].configured) {
continue;
}
for (set2_pos = 0; set2_pos < set2[ring_no].member_count; set2_pos++) {
/*
* All items which remain in set2 and don't exist in set1 are new nodes
* and have to be added.
*/
if (memcmp(&set2[ring_no].member_list[set2_pos], &empty_ip_address, sizeof(empty_ip_address)) != 0) {
log_printf(LOGSYS_LEVEL_DEBUG,
"adding dynamic member %s for ring %u",
totemip_print(&set2[ring_no].member_list[set2_pos]),
ring_no);
totempg_member_add(&set2[ring_no].member_list[set2_pos], ring_no);
}
}
}
}
/*
* Configure parameters for links
*/
static void configure_link_params(struct totem_config *totem_config, icmap_map_t map)
{
int i;
char tmp_key[ICMAP_KEYNAME_MAXLEN];
char *addr_string;
int err;
int local_node_pos = find_local_node(map, 0);
for (i = 0; i<INTERFACE_MAX; i++) {
if (!totem_config->interfaces[i].configured) {
continue;
}
log_printf(LOGSYS_LEVEL_DEBUG, "Configuring link %d params\n", i);
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring%u_addr", local_node_pos, i);
if (icmap_get_string_r(map, tmp_key, &addr_string) != CS_OK) {
continue;
}
err = totemip_parse(&totem_config->interfaces[i].local_ip, addr_string, totem_config->ip_version);
if (err != 0) {
continue;
}
totem_config->interfaces[i].local_ip.nodeid = totem_config->node_id;
/* In case this is a new link, fill in the defaults if there was no interface{} section for it */
if (!totem_config->interfaces[i].knet_link_priority)
totem_config->interfaces[i].knet_link_priority = 1;
/* knet_ping_interval & knet_ping_timeout are set later once we know all the other params */
if (!totem_config->interfaces[i].knet_ping_precision)
totem_config->interfaces[i].knet_ping_precision = KNET_PING_PRECISION;
if (!totem_config->interfaces[i].knet_pong_count)
totem_config->interfaces[i].knet_pong_count = KNET_PONG_COUNT;
if (!totem_config->interfaces[i].knet_transport)
totem_config->interfaces[i].knet_transport = KNET_TRANSPORT_UDP;
if (!totem_config->interfaces[i].ip_port)
totem_config->interfaces[i].ip_port = DEFAULT_PORT + i;
}
}
static void configure_totem_links(struct totem_config *totem_config, icmap_map_t map)
{
int i;
for (i = 0; i<INTERFACE_MAX; i++) {
if (!totem_config->interfaces[i].configured) {
continue;
}
log_printf(LOGSYS_LEVEL_INFO, "Configuring link %d\n", i);
totempg_iface_set(&totem_config->interfaces[i].local_ip, totem_config->interfaces[i].ip_port, i);
}
}
/* Check for differences in config that can't be done on-the-fly and print an error */
static int check_things_have_not_changed(struct totem_config *totem_config, const char **error_string)
{
int i,j,k;
const char *ip_str;
char addr_buf[INET6_ADDRSTRLEN];
int changed = 0;
for (i = 0; i<INTERFACE_MAX; i++) {
if (totem_config->interfaces[i].configured &&
totem_config->orig_interfaces[i].configured) {
if (totem_config->interfaces[i].knet_transport !=
totem_config->orig_interfaces[i].knet_transport) {
log_printf(LOGSYS_LEVEL_ERROR,
"New config has different knet transport for link %d. Internal value was NOT changed.\n", i);
changed = 1;
}
/* Check each nodeid in the new configuration and make sure its IP address on this link has not changed */
for (j=0; j < totem_config->interfaces[i].member_count; j++) {
for (k=0; k < totem_config->orig_interfaces[i].member_count; k++) {
if (totem_config->interfaces[i].member_list[j].nodeid ==
totem_config->orig_interfaces[i].member_list[k].nodeid) {
/* Found our nodeid - check the IP address */
if (memcmp(&totem_config->interfaces[i].member_list[j],
&totem_config->orig_interfaces[i].member_list[k],
sizeof(struct totem_ip_address))) {
ip_str = totemip_print(&totem_config->orig_interfaces[i].member_list[k]);
/* if ip_str is NULL then the old address was invalid and is allowed to change */
if (ip_str) {
strncpy(addr_buf, ip_str, sizeof(addr_buf));
addr_buf[sizeof(addr_buf) - 1] = '\0';
log_printf(LOGSYS_LEVEL_ERROR,
"new config has different address for link %d (addr changed from %s to %s). Internal value was NOT changed.\n",
i, addr_buf, totemip_print(&totem_config->interfaces[i].member_list[j]));
changed = 1;
}
}
}
}
}
}
}
if (changed) {
snprintf (error_string_response, sizeof(error_string_response),
"To reconfigure an interface it must be deleted and recreated. A working interface needs to be available to corosync at all times");
*error_string = error_string_response;
return -1;
}
return 0;
}
static int put_nodelist_members_to_config(struct totem_config *totem_config, icmap_map_t map,
int reload, const char **error_string)
{
icmap_iter_t iter, iter2;
const char *iter_key, *iter_key2;
int res = 0;
unsigned int node_pos;
char tmp_key[ICMAP_KEYNAME_MAXLEN];
char tmp_key2[ICMAP_KEYNAME_MAXLEN];
char *node_addr_str;
int member_count;
unsigned int linknumber = 0;
int i, j;
int last_node_pos = -1;
/* Clear out nodelist so we can put the new one in if needed */
for (i = 0; i < INTERFACE_MAX; i++) {
for (j = 0; j < PROCESSOR_COUNT_MAX; j++) {
memset(&totem_config->interfaces[i].member_list[j], 0, sizeof(struct totem_ip_address));
}
totem_config->interfaces[i].member_count = 0;
}
iter = icmap_iter_init_r(map, "nodelist.node.");
while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
res = sscanf(iter_key, "nodelist.node.%u.%s", &node_pos, tmp_key);
if (res != 2) {
continue;
}
/* If it's the same as the last node_pos then skip it */
if (node_pos == last_node_pos) {
continue;
}
last_node_pos = node_pos;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.", node_pos);
iter2 = icmap_iter_init_r(map, tmp_key);
while ((iter_key2 = icmap_iter_next(iter2, NULL, NULL)) != NULL) {
unsigned int nodeid;
char *str;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", node_pos);
if (icmap_get_uint32_r(map, tmp_key, &nodeid) != CS_OK) {
nodeid = 0;
}
res = sscanf(iter_key2, "nodelist.node.%u.ring%u%s", &node_pos, &linknumber, tmp_key2);
if (res != 3 || strcmp(tmp_key2, "_addr") != 0) {
continue;
}
if (linknumber >= INTERFACE_MAX) {
snprintf (error_string_response, sizeof(error_string_response),
"parse error in config: interface ring number %u is bigger than allowed maximum %u\n",
linknumber, INTERFACE_MAX - 1);
*error_string = error_string_response;
icmap_iter_finalize(iter2);
icmap_iter_finalize(iter);
return (-1);
}
if (icmap_get_string_r(map, iter_key2, &node_addr_str) != CS_OK) {
continue;
}
/* Generate nodeids if they are not provided and transport is UDP/U */
if (!nodeid &&
(totem_config->transport_number == TOTEM_TRANSPORT_UDP ||
totem_config->transport_number == TOTEM_TRANSPORT_UDPU)) {
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", node_pos);
if (icmap_get_string_r(map, tmp_key, &str) == CS_OK) {
nodeid = generate_nodeid(totem_config, str);
if (nodeid == -1) {
sprintf(error_string_response,
"An IPV6 network requires that a node ID be specified "
"for address '%s'.", node_addr_str);
*error_string = error_string_response;
free(str);
return (-1);
}
log_printf(LOGSYS_LEVEL_DEBUG,
"Generated nodeid = " CS_PRI_NODE_ID " for %s", nodeid, str);
free(str);
}
}
member_count = totem_config->interfaces[linknumber].member_count;
res = totemip_parse(&totem_config->interfaces[linknumber].member_list[member_count],
node_addr_str, totem_config->ip_version);
if (res == 0) {
totem_config->interfaces[linknumber].member_list[member_count].nodeid = nodeid;
totem_config->interfaces[linknumber].member_count++;
totem_config->interfaces[linknumber].configured = 1;
} else {
sprintf(error_string_response, "failed to parse node address '%s'\n", node_addr_str);
*error_string = error_string_response;
memset(&totem_config->interfaces[linknumber].member_list[member_count], 0,
sizeof(struct totem_ip_address));
free(node_addr_str);
icmap_iter_finalize(iter2);
icmap_iter_finalize(iter);
return -1;
}
free(node_addr_str);
}
icmap_iter_finalize(iter2);
}
icmap_iter_finalize(iter);
configure_link_params(totem_config, map);
if (reload) {
log_printf(LOGSYS_LEVEL_DEBUG, "About to reconfigure links from nodelist.\n");
if (check_things_have_not_changed(totem_config, error_string) == -1) {
return -1;
}
}
return 0;
}
static void config_convert_nodelist_to_interface(icmap_map_t map, struct totem_config *totem_config)
{
int res = 0;
int node_pos;
char tmp_key[ICMAP_KEYNAME_MAXLEN];
char tmp_key2[ICMAP_KEYNAME_MAXLEN];
char *node_addr_str;
unsigned int linknumber = 0;
icmap_iter_t iter;
const char *iter_key;
node_pos = find_local_node(map, 1);
if (node_pos > -1) {
/*
* We found node, so create interface section
*/
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.", node_pos);
iter = icmap_iter_init_r(map, tmp_key);
while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
res = sscanf(iter_key, "nodelist.node.%u.ring%u%s", &node_pos, &linknumber, tmp_key2);
if (res != 3 || strcmp(tmp_key2, "_addr") != 0) {
continue ;
}
if (icmap_get_string_r(map, iter_key, &node_addr_str) != CS_OK) {
continue;
}
snprintf(tmp_key2, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.bindnetaddr", linknumber);
icmap_set_string_r(map, tmp_key2, node_addr_str);
free(node_addr_str);
}
icmap_iter_finalize(iter);
}
}
static int get_interface_params(struct totem_config *totem_config, icmap_map_t map,
const char **error_string, uint64_t *warnings,
int reload)
{
int res = 0;
unsigned int linknumber = 0;
int member_count = 0;
int i;
icmap_iter_t iter, member_iter;
const char *iter_key;
const char *member_iter_key;
char linknumber_key[ICMAP_KEYNAME_MAXLEN];
char tmp_key[ICMAP_KEYNAME_MAXLEN];
uint8_t u8;
uint32_t u32;
char *str;
char *cluster_name = NULL;
enum totem_ip_version_enum tmp_ip_version = TOTEM_IP_VERSION_4;
int ret = 0;
if (reload) {
for (i=0; i<INTERFACE_MAX; i++) {
/*
* Set back to defaults things that might have been configured and
* now have been taken out of corosync.conf. These won't be caught by the
* code below which only looks at interface{} sections that actually exist.
*/
totem_config->interfaces[i].configured = 0;
totem_config->interfaces[i].knet_ping_timeout = 0;
totem_config->interfaces[i].knet_ping_interval = 0;
totem_config->interfaces[i].knet_ping_precision = KNET_PING_PRECISION;
totem_config->interfaces[i].knet_pong_count = KNET_PONG_COUNT;
}
}
if (icmap_get_string_r(map, "totem.cluster_name", &cluster_name) != CS_OK) {
cluster_name = NULL;
}
iter = icmap_iter_init_r(map, "totem.interface.");
while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
res = sscanf(iter_key, "totem.interface.%[^.].%s", linknumber_key, tmp_key);
if (res != 2) {
continue;
}
if (strcmp(tmp_key, "bindnetaddr") != 0 && totem_config->transport_number == TOTEM_TRANSPORT_UDP) {
continue;
}
member_count = 0;
linknumber = atoi(linknumber_key);
if (linknumber >= INTERFACE_MAX) {
snprintf (error_string_response, sizeof(error_string_response),
"parse error in config: interface ring number %u is bigger than allowed maximum %u\n",
linknumber, INTERFACE_MAX - 1);
*error_string = error_string_response;
ret = -1;
goto out;
}
/* These things are only valid for the initial read */
if (!reload) {
/*
* Get the bind net address
*/
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.bindnetaddr", linknumber);
if (icmap_get_string_r(map, tmp_key, &str) == CS_OK) {
res = totemip_parse (&totem_config->interfaces[linknumber].bindnet, str,
totem_config->ip_version);
if (res) {
sprintf(error_string_response, "failed to parse bindnet address '%s'\n", str);
*error_string = error_string_response;
free(str);
ret = -1;
goto out;
}
free(str);
}
/*
* Get interface multicast address
*/
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastaddr", linknumber);
if (icmap_get_string_r(map, tmp_key, &str) == CS_OK) {
res = totemip_parse (&totem_config->interfaces[linknumber].mcast_addr, str,
totem_config->ip_version);
if (res) {
sprintf(error_string_response, "failed to parse mcast address '%s'\n", str);
*error_string = error_string_response;
free(str);
ret = -1;
goto out;
}
free(str);
} else if (totem_config->transport_number == TOTEM_TRANSPORT_UDP) {
/*
* User not specified address -> autogenerate one from cluster_name key
* (if available). Return code is intentionally ignored, because
* udpu doesn't need mcastaddr and validity of mcastaddr for udp is
* checked later anyway.
*/
if (totem_config->interfaces[0].bindnet.family == AF_INET) {
tmp_ip_version = TOTEM_IP_VERSION_4;
} else if (totem_config->interfaces[0].bindnet.family == AF_INET6) {
tmp_ip_version = TOTEM_IP_VERSION_6;
}
(void)get_cluster_mcast_addr (cluster_name,
linknumber,
tmp_ip_version,
&totem_config->interfaces[linknumber].mcast_addr);
}
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.broadcast", linknumber);
if (icmap_get_string(tmp_key, &str) == CS_OK) {
if (strcmp (str, "yes") == 0) {
totem_config->broadcast_use = 1;
}
free(str);
}
}
/* These things are only valid for the initial read OR a newly-defined link */
if (!reload || (totem_config->interfaces[linknumber].configured == 0)) {
/*
* Get mcast port
*/
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastport", linknumber);
if (icmap_get_uint16_r(map, tmp_key, &totem_config->interfaces[linknumber].ip_port) != CS_OK) {
if (totem_config->broadcast_use) {
totem_config->interfaces[linknumber].ip_port = DEFAULT_PORT + (2 * linknumber);
} else {
totem_config->interfaces[linknumber].ip_port = DEFAULT_PORT + linknumber;
}
}
/*
* Get the TTL
*/
totem_config->interfaces[linknumber].ttl = 1;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.ttl", linknumber);
if (icmap_get_uint8_r(map, tmp_key, &u8) == CS_OK) {
totem_config->interfaces[linknumber].ttl = u8;
}
totem_config->interfaces[linknumber].knet_transport = KNET_DEFAULT_TRANSPORT;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_transport", linknumber);
if (icmap_get_string_r(map, tmp_key, &str) == CS_OK) {
if (strcmp(str, "sctp") == 0) {
totem_config->interfaces[linknumber].knet_transport = KNET_TRANSPORT_SCTP;
}
else if (strcmp(str, "udp") == 0) {
totem_config->interfaces[linknumber].knet_transport = KNET_TRANSPORT_UDP;
}
else {
*error_string = "Unrecognised knet_transport. expected 'udp' or 'sctp'";
ret = -1;
goto out;
}
}
}
totem_config->interfaces[linknumber].configured = 1;
/*
* Get the knet link params
*/
totem_config->interfaces[linknumber].knet_link_priority = 1;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_link_priority", linknumber);
if (icmap_get_uint8_r(map, tmp_key, &u8) == CS_OK) {
totem_config->interfaces[linknumber].knet_link_priority = u8;
}
totem_config->interfaces[linknumber].knet_ping_interval = 0; /* real default applied later */
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_ping_interval", linknumber);
if (icmap_get_uint32_r(map, tmp_key, &u32) == CS_OK) {
totem_config->interfaces[linknumber].knet_ping_interval = u32;
}
totem_config->interfaces[linknumber].knet_ping_timeout = 0; /* real default applied later */
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_ping_timeout", linknumber);
if (icmap_get_uint32_r(map, tmp_key, &u32) == CS_OK) {
totem_config->interfaces[linknumber].knet_ping_timeout = u32;
}
totem_config->interfaces[linknumber].knet_ping_precision = KNET_PING_PRECISION;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_ping_precision", linknumber);
if (icmap_get_uint32_r(map, tmp_key, &u32) == CS_OK) {
totem_config->interfaces[linknumber].knet_ping_precision = u32;
}
totem_config->interfaces[linknumber].knet_pong_count = KNET_PONG_COUNT;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_pong_count", linknumber);
if (icmap_get_uint32_r(map, tmp_key, &u32) == CS_OK) {
totem_config->interfaces[linknumber].knet_pong_count = u32;
}
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.member.", linknumber);
member_iter = icmap_iter_init_r(map, tmp_key);
while ((member_iter_key = icmap_iter_next(member_iter, NULL, NULL)) != NULL) {
if (member_count == 0) {
if (icmap_get_string("nodelist.node.0.ring0_addr", &str) == CS_OK) {
free(str);
*warnings |= TOTEM_CONFIG_WARNING_MEMBERS_IGNORED;
break;
} else {
*warnings |= TOTEM_CONFIG_WARNING_MEMBERS_DEPRECATED;
}
}
if (icmap_get_string_r(map, member_iter_key, &str) == CS_OK) {
res = totemip_parse (&totem_config->interfaces[linknumber].member_list[member_count++],
str, totem_config->ip_version);
if (res) {
sprintf(error_string_response, "failed to parse node address '%s'\n", str);
*error_string = error_string_response;
icmap_iter_finalize(member_iter);
free(str);
ret = -1;
goto out;
}
free(str);
}
}
icmap_iter_finalize(member_iter);
totem_config->interfaces[linknumber].member_count = member_count;
}
out:
icmap_iter_finalize(iter);
free(cluster_name);
return (ret);
}
extern int totem_config_read (
struct totem_config *totem_config,
const char **error_string,
uint64_t *warnings)
{
int res = 0;
char *str, *ring0_addr_str;
char tmp_key[ICMAP_KEYNAME_MAXLEN];
uint16_t u16;
int i;
int local_node_pos;
int nodeid_set;
*warnings = 0;
memset (totem_config, 0, sizeof (struct totem_config));
totem_config->interfaces = malloc (sizeof (struct totem_interface) * INTERFACE_MAX);
if (totem_config->interfaces == 0) {
*error_string = "Out of memory trying to allocate ethernet interface storage area";
return -1;
}
totem_config->transport_number = TOTEM_TRANSPORT_KNET;
if (icmap_get_string("totem.transport", &str) == CS_OK) {
if (strcmp (str, "udpu") == 0) {
totem_config->transport_number = TOTEM_TRANSPORT_UDPU;
} else if (strcmp (str, "udp") == 0) {
totem_config->transport_number = TOTEM_TRANSPORT_UDP;
} else if (strcmp (str, "knet") == 0) {
totem_config->transport_number = TOTEM_TRANSPORT_KNET;
} else {
*error_string = "Invalid transport type. Should be udpu, udp or knet";
free(str);
return -1;
}
free(str);
}
memset (totem_config->interfaces, 0,
sizeof (struct totem_interface) * INTERFACE_MAX);
strcpy (totem_config->link_mode, "passive");
icmap_get_uint32("totem.version", (uint32_t *)&totem_config->version);
/* initial crypto load */
if (totem_get_crypto(totem_config, icmap_get_global_map(), error_string) != 0) {
return -1;
}
if (totem_config_keyread(totem_config, icmap_get_global_map(), error_string) != 0) {
return -1;
}
totem_config->crypto_index = 1;
totem_config->crypto_changed = 0;
if (icmap_get_string("totem.link_mode", &str) == CS_OK) {
if (strlen(str) >= TOTEM_LINK_MODE_BYTES) {
*error_string = "totem.link_mode is too long";
free(str);
return -1;
}
strcpy (totem_config->link_mode, str);
free(str);
}
icmap_get_uint32("totem.nodeid", &totem_config->node_id);
totem_config->clear_node_high_bit = 0;
if (icmap_get_string("totem.clear_node_high_bit", &str) == CS_OK) {
if (strcmp (str, "yes") == 0) {
totem_config->clear_node_high_bit = 1;
}
free(str);
}
icmap_get_uint32("totem.threads", &totem_config->threads);
icmap_get_uint32("totem.netmtu", &totem_config->net_mtu);
totem_config->ip_version = totem_config_get_ip_version(totem_config);
if (icmap_get_string("totem.interface.0.bindnetaddr", &str) != CS_OK) {
/*
* We were not able to find ring 0 bindnet addr. Try to use nodelist informations
*/
config_convert_nodelist_to_interface(icmap_get_global_map(), totem_config);
} else {
if (icmap_get_string("nodelist.node.0.ring0_addr", &ring0_addr_str) == CS_OK) {
/*
* Both bindnetaddr and ring0_addr are set.
* Log warning information, and use nodelist instead
*/
*warnings |= TOTEM_CONFIG_BINDNETADDR_NODELIST_SET;
config_convert_nodelist_to_interface(icmap_get_global_map(), totem_config);
free(ring0_addr_str);
}
free(str);
}
/*
* Broadcast option is global but set in interface section,
* so reset before processing interfaces.
*/
totem_config->broadcast_use = 0;
res = get_interface_params(totem_config, icmap_get_global_map(), error_string, warnings, 0);
if (res < 0) {
return res;
}
/*
* Use broadcast is global, so if set, make sure to fill mcast addr correctly
* broadcast is only supported for UDP so just do interface 0;
*/
if (totem_config->broadcast_use) {
totemip_parse (&totem_config->interfaces[0].mcast_addr,
"255.255.255.255", TOTEM_IP_VERSION_4);
}
/*
* Store automatically generated items back to icmap only for UDP
*/
if (totem_config->transport_number == TOTEM_TRANSPORT_UDP) {
for (i = 0; i < INTERFACE_MAX; i++) {
if (!totem_config->interfaces[i].configured) {
continue;
}
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastaddr", i);
if (icmap_get_string(tmp_key, &str) == CS_OK) {
free(str);
} else {
str = (char *)totemip_print(&totem_config->interfaces[i].mcast_addr);
icmap_set_string(tmp_key, str);
}
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastport", i);
if (icmap_get_uint16(tmp_key, &u16) != CS_OK) {
icmap_set_uint16(tmp_key, totem_config->interfaces[i].ip_port);
}
}
}
/*
* Check existence of nodelist
*/
if ((icmap_get_string("nodelist.node.0.name", &str) == CS_OK) ||
(icmap_get_string("nodelist.node.0.ring0_addr", &str) == CS_OK)) {
free(str);
/*
* find local node
*/
local_node_pos = find_local_node(icmap_get_global_map(), 1);
if (local_node_pos != -1) {
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", local_node_pos);
nodeid_set = (totem_config->node_id != 0);
if (icmap_get_uint32(tmp_key, &totem_config->node_id) == CS_OK && nodeid_set) {
*warnings |= TOTEM_CONFIG_WARNING_TOTEM_NODEID_IGNORED;
}
if ((totem_config->transport_number == TOTEM_TRANSPORT_KNET) && (!totem_config->node_id)) {
*error_string = "Knet requires an explicit nodeid for the local node";
return -1;
}
if ((totem_config->transport_number == TOTEM_TRANSPORT_UDP ||
totem_config->transport_number == TOTEM_TRANSPORT_UDPU) && (!totem_config->node_id)) {
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", local_node_pos);
icmap_get_string(tmp_key, &str);
totem_config->node_id = generate_nodeid(totem_config, str);
if (totem_config->node_id == -1) {
*error_string = "An IPV6 network requires that a node ID be specified";
free(str);
return (-1);
}
totem_config->interfaces[0].member_list[local_node_pos].nodeid = totem_config->node_id;
free(str);
}
/* Users must not change this */
icmap_set_ro_access("nodelist.local_node_pos", 0, 1);
}
if (put_nodelist_members_to_config(totem_config, icmap_get_global_map(), 0, error_string)) {
return -1;
}
}
/*
* Get things that might change in the future (and can depend on totem_config->interfaces);
*/
totem_volatile_config_read(totem_config, icmap_get_global_map(), NULL);
calc_knet_ping_timers(totem_config);
/* This is now done in the totemknet interface callback */
/* configure_totem_links(totem_config, icmap_get_global_map()); */
add_totem_config_notification(totem_config);
return 0;
}
int totem_config_validate (
struct totem_config *totem_config,
const char **error_string)
{
static char local_error_reason[512];
char parse_error[512];
const char *error_reason = local_error_reason;
int i;
uint32_t u32;
int num_configured = 0;
unsigned int interface_max = INTERFACE_MAX;
for (i = 0; i < INTERFACE_MAX; i++) {
if (totem_config->interfaces[i].configured) {
num_configured++;
}
}
if (num_configured == 0) {
error_reason = "No interfaces defined";
goto parse_error;
}
/* Check we found a local node name */
if (icmap_get_uint32("nodelist.local_node_pos", &u32) != CS_OK) {
error_reason = "No valid name found for local host";
goto parse_error;
}
for (i = 0; i < INTERFACE_MAX; i++) {
/*
* Some error checking of parsed data to make sure its valid
*/
struct totem_ip_address null_addr;
if (!totem_config->interfaces[i].configured) {
continue;
}
memset (&null_addr, 0, sizeof (struct totem_ip_address));
if ((totem_config->transport_number == TOTEM_TRANSPORT_UDP) &&
memcmp (&totem_config->interfaces[i].mcast_addr, &null_addr,
sizeof (struct totem_ip_address)) == 0) {
snprintf (local_error_reason, sizeof(local_error_reason),
"No multicast address specified for interface %u", i);
goto parse_error;
}
if (totem_config->interfaces[i].ip_port == 0) {
snprintf (local_error_reason, sizeof(local_error_reason),
"No multicast port specified for interface %u", i);
goto parse_error;
}
if (totem_config->interfaces[i].ttl > 255) {
snprintf (local_error_reason, sizeof(local_error_reason),
"Invalid TTL (should be 0..255) for interface %u", i);
goto parse_error;
}
if (totem_config->transport_number != TOTEM_TRANSPORT_UDP &&
totem_config->interfaces[i].ttl != 1) {
snprintf (local_error_reason, sizeof(local_error_reason),
"Can only set ttl on multicast transport types for interface %u", i);
goto parse_error;
}
if (totem_config->interfaces[i].knet_link_priority > 255) {
snprintf (local_error_reason, sizeof(local_error_reason),
"Invalid link priority (should be 0..255) for interface %u", i);
goto parse_error;
}
if (totem_config->transport_number != TOTEM_TRANSPORT_KNET &&
totem_config->interfaces[i].knet_link_priority != 1) {
snprintf (local_error_reason, sizeof(local_error_reason),
"Can only set link priority on knet transport type for interface %u", i);
goto parse_error;
}
if (totem_config->interfaces[i].mcast_addr.family == AF_INET6 &&
totem_config->node_id == 0) {
snprintf (local_error_reason, sizeof(local_error_reason),
"An IPV6 network requires that a node ID be specified for interface %u", i);
goto parse_error;
}
if (totem_config->broadcast_use == 0 && totem_config->transport_number == TOTEM_TRANSPORT_UDP) {
if (totem_config->interfaces[i].mcast_addr.family != totem_config->interfaces[i].bindnet.family) {
snprintf (local_error_reason, sizeof(local_error_reason),
"Multicast address family does not match bind address family for interface %u", i);
goto parse_error;
}
if (totemip_is_mcast (&totem_config->interfaces[i].mcast_addr) != 0) {
snprintf (local_error_reason, sizeof(local_error_reason),
"mcastaddr is not a correct multicast address for interface %u", i);
goto parse_error;
}
}
}
if (totem_config->version != 2) {
error_reason = "This totem parser can only parse version 2 configurations.";
goto parse_error;
}
if (totem_volatile_config_validate(totem_config, icmap_get_global_map(), error_string) == -1) {
return (-1);
}
if (check_for_duplicate_nodeids(totem_config, error_string) == -1) {
return (-1);
}
/*
* KNET Link values validation
*/
if (strcmp (totem_config->link_mode, "active") &&
strcmp (totem_config->link_mode, "rr") &&
strcmp (totem_config->link_mode, "passive")) {
snprintf (local_error_reason, sizeof(local_error_reason),
"The Knet link mode \"%s\" specified is invalid. It must be active, passive or rr.\n", totem_config->link_mode);
goto parse_error;
}
/* Only Knet does multiple interfaces */
if (totem_config->transport_number != TOTEM_TRANSPORT_KNET) {
interface_max = 1;
}
if (interface_max < num_configured) {
snprintf (parse_error, sizeof(parse_error),
"%d is too many configured interfaces for non-Knet transport.",
num_configured);
error_reason = parse_error;
goto parse_error;
}
/* Only knet allows crypto */
if (totem_config->transport_number != TOTEM_TRANSPORT_KNET) {
if ((strcmp(totem_config->crypto_cipher_type, "none") != 0) ||
(strcmp(totem_config->crypto_hash_type, "none") != 0)) {
snprintf (parse_error, sizeof(parse_error),
"crypto_cipher & crypto_hash are only valid for the Knet transport.");
error_reason = parse_error;
goto parse_error;
}
}
if (totem_config->net_mtu == 0) {
if (totem_config->transport_number == TOTEM_TRANSPORT_KNET) {
totem_config->net_mtu = KNET_MAX_PACKET_SIZE;
}
else {
totem_config->net_mtu = 1500;
}
}
return 0;
parse_error:
snprintf (error_string_response, sizeof(error_string_response),
"parse error in config: %s\n", error_reason);
*error_string = error_string_response;
return (-1);
}
static int read_keyfile (
const char *key_location,
struct totem_config *totem_config,
const char **error_string)
{
int fd;
int res;
int saved_errno;
char error_str[100];
const char *error_ptr;
fd = open (key_location, O_RDONLY);
if (fd == -1) {
error_ptr = qb_strerror_r(errno, error_str, sizeof(error_str));
snprintf (error_string_response, sizeof(error_string_response),
"Could not open %s: %s\n",
key_location, error_ptr);
goto parse_error;
}
res = read (fd, totem_config->private_key, TOTEM_PRIVATE_KEY_LEN_MAX);
saved_errno = errno;
close (fd);
if (res == -1) {
error_ptr = qb_strerror_r (saved_errno, error_str, sizeof(error_str));
snprintf (error_string_response, sizeof(error_string_response),
"Could not read %s: %s\n",
key_location, error_ptr);
goto parse_error;
}
if (res < TOTEM_PRIVATE_KEY_LEN_MIN) {
snprintf (error_string_response, sizeof(error_string_response),
"Could only read %d bits of minimum %u bits from %s.\n",
res * 8, TOTEM_PRIVATE_KEY_LEN_MIN * 8, key_location);
goto parse_error;
}
totem_config->private_key_len = res;
return 0;
parse_error:
*error_string = error_string_response;
return (-1);
}
int totem_config_keyread (
struct totem_config *totem_config,
icmap_map_t map,
const char **error_string)
{
int got_key = 0;
char *key_location = NULL;
int res;
size_t key_len;
char old_key[TOTEM_PRIVATE_KEY_LEN_MAX];
size_t old_key_len;
/* Take a copy so we can see if it has changed */
memcpy(old_key, totem_config->private_key, sizeof(totem_config->private_key));
old_key_len = totem_config->private_key_len;
memset (totem_config->private_key, 0, sizeof(totem_config->private_key));
totem_config->private_key_len = 0;
if (strcmp(totem_config->crypto_cipher_type, "none") == 0 &&
strcmp(totem_config->crypto_hash_type, "none") == 0) {
return (0);
}
/* cmap may store the location of the key file */
if (icmap_get_string_r(map, "totem.keyfile", &key_location) == CS_OK) {
res = read_keyfile(key_location, totem_config, error_string);
free(key_location);
if (res) {
goto key_error;
}
got_key = 1;
} else { /* Or the key itself may be in the cmap */
if (icmap_get_r(map, "totem.key", NULL, &key_len, NULL) == CS_OK) {
if (key_len > sizeof(totem_config->private_key)) {
sprintf(error_string_response, "key is too long");
goto key_error;
}
if (key_len < TOTEM_PRIVATE_KEY_LEN_MIN) {
sprintf(error_string_response, "key is too short");
goto key_error;
}
if (icmap_get_r(map, "totem.key", totem_config->private_key, &key_len, NULL) == CS_OK) {
totem_config->private_key_len = key_len;
got_key = 1;
} else {
sprintf(error_string_response, "can't load private key");
goto key_error;
}
}
}
/* In desperation we read the default filename */
if (!got_key) {
res = read_keyfile(COROSYSCONFDIR "/authkey", totem_config, error_string);
if (res)
goto key_error;
}
if (old_key_len != totem_config->private_key_len ||
memcmp(old_key, totem_config->private_key, sizeof(totem_config->private_key))) {
totem_config->crypto_changed = 1;
}
return (0);
key_error:
*error_string = error_string_response;
return (-1);
}
int totem_reread_crypto_config(struct totem_config *totem_config, icmap_map_t map, const char **error_string)
{
if (totem_get_crypto(totem_config, map, error_string) != 0) {
return -1;
}
if (totem_config_keyread(totem_config, map, error_string) != 0) {
return -1;
}
return 0;
}
static void debug_dump_totem_config(const struct totem_config *totem_config)
{
log_printf(LOGSYS_LEVEL_DEBUG, "Token Timeout (%d ms) retransmit timeout (%d ms)",
totem_config->token_timeout, totem_config->token_retransmit_timeout);
if (totem_config->token_warning) {
uint32_t token_warning_ms = totem_config->token_warning * totem_config->token_timeout / 100;
log_printf(LOGSYS_LEVEL_DEBUG, "Token warning every %d ms (%d%% of Token Timeout)",
token_warning_ms, totem_config->token_warning);
if (token_warning_ms < totem_config->token_retransmit_timeout)
log_printf (LOGSYS_LEVEL_DEBUG,
"The token warning interval (%d ms) is less than the token retransmit timeout (%d ms) "
"which can lead to spurious token warnings. Consider increasing the token_warning parameter.",
token_warning_ms, totem_config->token_retransmit_timeout);
} else
log_printf(LOGSYS_LEVEL_DEBUG, "Token warnings disabled");
log_printf(LOGSYS_LEVEL_DEBUG, "token hold (%d ms) retransmits before loss (%d retrans)",
totem_config->token_hold_timeout, totem_config->token_retransmits_before_loss_const);
log_printf(LOGSYS_LEVEL_DEBUG, "join (%d ms) send_join (%d ms) consensus (%d ms) merge (%d ms)",
totem_config->join_timeout, totem_config->send_join_timeout, totem_config->consensus_timeout,
totem_config->merge_timeout);
log_printf(LOGSYS_LEVEL_DEBUG, "downcheck (%d ms) fail to recv const (%d msgs)",
totem_config->downcheck_timeout, totem_config->fail_to_recv_const);
log_printf(LOGSYS_LEVEL_DEBUG,
"seqno unchanged const (%d rotations) Maximum network MTU %d",
totem_config->seqno_unchanged_const, totem_config->net_mtu);
log_printf(LOGSYS_LEVEL_DEBUG,
"window size per rotation (%d messages) maximum messages per rotation (%d messages)",
totem_config->window_size, totem_config->max_messages);
log_printf(LOGSYS_LEVEL_DEBUG, "missed count const (%d messages)", totem_config->miss_count_const);
log_printf(LOGSYS_LEVEL_DEBUG, "heartbeat_failures_allowed (%d)",
totem_config->heartbeat_failures_allowed);
log_printf(LOGSYS_LEVEL_DEBUG, "max_network_delay (%d ms)", totem_config->max_network_delay);
}
static void totem_change_notify(
int32_t event,
const char *key_name,
struct icmap_notify_value new_val,
struct icmap_notify_value old_val,
void *user_data)
{
struct totem_config *totem_config = (struct totem_config *)user_data;
uint32_t *param;
uint8_t reloading;
const char *deleted_key = NULL;
const char *error_string;
/*
* If a full reload is in progress then don't do anything until it's done and
* can reconfigure it all atomically
*/
if (icmap_get_uint8("config.reload_in_progress", &reloading) == CS_OK && reloading)
return;
param = totem_get_param_by_name((struct totem_config *)user_data, key_name);
/*
* Process change only if changed key is found in totem_config (-> param is not NULL)
* or for special key token_coefficient. token_coefficient key is not stored in
* totem_config, but it is used for computation of token timeout.
*/
if (!param && strcmp(key_name, "totem.token_coefficient") != 0)
return;
/*
* Values other than UINT32 are not supported, or needed (yet)
*/
switch (event) {
case ICMAP_TRACK_DELETE:
deleted_key = key_name;
break;
case ICMAP_TRACK_ADD:
case ICMAP_TRACK_MODIFY:
deleted_key = NULL;
break;
default:
break;
}
totem_volatile_config_read (totem_config, icmap_get_global_map(), deleted_key);
log_printf(LOGSYS_LEVEL_DEBUG, "Totem related config key changed. Dumping actual totem config.");
debug_dump_totem_config(totem_config);
if (totem_volatile_config_validate(totem_config, icmap_get_global_map(), &error_string) == -1) {
log_printf (LOGSYS_LEVEL_ERROR, "%s", error_string);
/*
* TODO: Consider corosync exit and/or load defaults for volatile
* values. For now, log error seems to be enough
*/
}
}
int totemconfig_configure_new_params(
struct totem_config *totem_config,
icmap_map_t map,
const char **error_string)
{
uint64_t warnings = 0LL;
get_interface_params(totem_config, map, error_string, &warnings, 1);
if (put_nodelist_members_to_config (totem_config, map, 1, error_string)) {
return -1;
}
calc_knet_ping_timers(totem_config);
log_printf(LOGSYS_LEVEL_DEBUG, "Configuration reloaded. Dumping actual totem config.");
debug_dump_totem_config(totem_config);
/* Reinstate the local_node_pos */
(void)find_local_node(map, 0);
return 0;
}
void totemconfig_commit_new_params(
struct totem_config *totem_config,
icmap_map_t map)
{
struct totem_interface *new_interfaces = NULL;
new_interfaces = malloc (sizeof (struct totem_interface) * INTERFACE_MAX);
assert(new_interfaces != NULL);
memcpy(new_interfaces, totem_config->interfaces, sizeof (struct totem_interface) * INTERFACE_MAX);
/* Set link parameters including local_ip */
configure_totem_links(totem_config, map);
/* Add & remove nodes */
compute_and_set_totempg_interfaces(totem_config->orig_interfaces, new_interfaces);
/* Does basic global params (like compression) */
totempg_reconfigure();
free(new_interfaces);
}
static void add_totem_config_notification(struct totem_config *totem_config)
{
icmap_track_t icmap_track;
icmap_track_add("totem.",
ICMAP_TRACK_ADD | ICMAP_TRACK_DELETE | ICMAP_TRACK_MODIFY | ICMAP_TRACK_PREFIX,
totem_change_notify,
totem_config,
&icmap_track);
}
Reference in New Issue View Git Blame Copy Permalink