diff --git a/exec/totemconfig.c b/exec/totemconfig.c index 3f0c262a..d74f7e5c 100644 --- a/exec/totemconfig.c +++ b/exec/totemconfig.c @@ -1,1663 +1,1663 @@ /* * Copyright (c) 2002-2005 MontaVista Software, Inc. * Copyright (c) 2006-2013 Red Hat, Inc. * * All rights reserved. * * Author: Steven Dake (sdake@redhat.com) * Jan Friesse (jfriesse@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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "util.h" #include "totemconfig.h" #define TOKEN_RETRANSMITS_BEFORE_LOSS_CONST 4 #define TOKEN_TIMEOUT 1000 #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 MAX_NETWORK_DELAY 50 #define WINDOW_SIZE 50 #define MAX_MESSAGES 17 #define MISS_COUNT_CONST 5 /* These currently 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 5 +#define KNET_PONG_COUNT 2 #define KNET_PMTUD_INTERVAL 30 #define DEFAULT_PORT 5405 static char error_string_response[512]; static void add_totem_config_notification(struct totem_config *totem_config); /* All the volatile parameters are uint32s, luckily */ static uint32_t *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_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; 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_value (struct totem_config *totem_config, 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(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 && *totem_get_param_by_name(totem_config, key_name) == 0)) { *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(runtime_key_name, *totem_get_param_by_name(totem_config, key_name)); } /* * 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. */ static void totem_volatile_config_read (struct totem_config *totem_config, const char *deleted_key) { uint32_t u32; totem_volatile_config_set_value(totem_config, "totem.token_retransmits_before_loss_const", deleted_key, TOKEN_RETRANSMITS_BEFORE_LOSS_CONST, 0); totem_volatile_config_set_value(totem_config, "totem.token", deleted_key, TOKEN_TIMEOUT, 0); if (totem_config->interface_count > 0 && totem_config->interfaces[0].member_count > 2) { u32 = TOKEN_COEFFICIENT; icmap_get_uint32("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("runtime.config.totem.token", totem_config->token_timeout); } totem_volatile_config_set_value(totem_config, "totem.max_network_delay", deleted_key, MAX_NETWORK_DELAY, 0); totem_volatile_config_set_value(totem_config, "totem.window_size", deleted_key, WINDOW_SIZE, 0); totem_volatile_config_set_value(totem_config, "totem.max_messages", deleted_key, MAX_MESSAGES, 0); totem_volatile_config_set_value(totem_config, "totem.miss_count_const", deleted_key, MISS_COUNT_CONST, 0); totem_volatile_config_set_value(totem_config, "totem.knet_pmtud_interval", deleted_key, KNET_PMTUD_INTERVAL, 0); totem_volatile_config_set_value(totem_config, "totem.token_retransmit", deleted_key, (int)(totem_config->token_timeout / (totem_config->token_retransmits_before_loss_const + 0.2)), 0); totem_volatile_config_set_value(totem_config, "totem.hold", deleted_key, (int)(totem_config->token_retransmit_timeout * 0.8 - (1000/HZ)), 0); totem_volatile_config_set_value(totem_config, "totem.join", deleted_key, JOIN_TIMEOUT, 0); totem_volatile_config_set_value(totem_config, "totem.consensus", deleted_key, (int)(float)(1.2 * totem_config->token_timeout), 0); totem_volatile_config_set_value(totem_config, "totem.merge", deleted_key, MERGE_TIMEOUT, 0); totem_volatile_config_set_value(totem_config, "totem.downcheck", deleted_key, DOWNCHECK_TIMEOUT, 0); totem_volatile_config_set_value(totem_config, "totem.fail_recv_const", deleted_key, FAIL_TO_RECV_CONST, 0); totem_volatile_config_set_value(totem_config, "totem.seqno_unchanged_const", deleted_key, SEQNO_UNCHANGED_CONST, 0); totem_volatile_config_set_value(totem_config, "totem.send_join", deleted_key, 0, 1); totem_volatile_config_set_value(totem_config, "totem.heartbeat_failures_allowed", deleted_key, 0, 1); } static int totem_volatile_config_validate ( struct totem_config *totem_config, const char **error_string) { static char local_error_reason[512]; const char *error_reason = local_error_reason; 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_retransmit_timeout < MINIMUM_TIMEOUT) { 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; } if (totem_config->token_hold_timeout < MINIMUM_TIMEOUT) { 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); 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; } 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) { char *str; const char *tmp_cipher; const char *tmp_hash; tmp_hash = "none"; tmp_cipher = "none"; if (icmap_get_string("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"; } if (strcmp(str, "aes256") == 0) { tmp_cipher = "aes256"; } if (strcmp(str, "3des") == 0) { tmp_cipher = "3des"; } free(str); } if (icmap_get_string("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)) { return -1; } free(totem_config->crypto_cipher_type); free(totem_config->crypto_hash_type); totem_config->crypto_cipher_type = strdup(tmp_cipher); totem_config->crypto_hash_type = strdup(tmp_hash); return 0; } static int totem_config_get_ip_version(void) { int res; char *str; res = AF_INET; if (icmap_get_string("totem.ip_version", &str) == CS_OK) { if (strcmp(str, "ipv4") == 0) { res = AF_INET; } if (strcmp(str, "ipv6") == 0) { res = AF_INET6; } 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, int 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 AF_INET: snprintf(addr, sizeof(addr), "239.192.%d.%d", clusterid >> 8, clusterid % 0xFF); break; case AF_INET6: 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_for_duplicate_test( 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, AF_INET) != 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 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; } if (strcmp(tmp_key, "ring0_addr") != 0) { continue; } snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", node_pos); autogenerated = 0; 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_for_duplicate_test(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, "ring0_addr") != 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_for_duplicate_test(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; } static int find_local_node_in_nodelist(struct totem_config *totem_config) { icmap_iter_t iter; const char *iter_key; int res = 0; unsigned int node_pos; int local_node_pos = -1; struct totem_ip_address bind_addr; int interface_up, interface_num; char tmp_key[ICMAP_KEYNAME_MAXLEN]; char *node_addr_str; struct totem_ip_address node_addr; res = totemip_iface_check(&totem_config->interfaces[0].bindnet, &bind_addr, &interface_up, &interface_num, totem_config->clear_node_high_bit); if (res == -1) { return (-1); } 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; } if (strcmp(tmp_key, "ring0_addr") != 0) { continue; } snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", node_pos); if (icmap_get_string(tmp_key, &node_addr_str) != CS_OK) { continue; } res = totemip_parse (&node_addr, node_addr_str, totem_config->ip_version); free(node_addr_str); if (res == -1) { continue ; } if (totemip_equal(&bind_addr, &node_addr)) { local_node_pos = node_pos; } } icmap_iter_finalize(iter); return (local_node_pos); } /* * Compute difference between two set of totem interface arrays. 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_interfaces_diff(int interface_count, 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_count; ring_no++) { 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_count; ring_no++) { for (set1_pos = 0; set1_pos < set1[ring_no].member_count; set1_pos++) { /* * All items which remained in set1 doesn't exists in set2 any longer so * node has 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); } } for (set2_pos = 0; set2_pos < set2[ring_no].member_count; set2_pos++) { /* * All items which remained in set2 doesn't existed in set1 so this is no node * and has 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); } } } } static void put_nodelist_members_to_config(struct totem_config *totem_config, int reload) { 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; struct totem_interface *orig_interfaces = NULL; struct totem_interface *new_interfaces = NULL; if (reload) { /* * We need to compute diff only for reload. Also for initial configuration * not all totem structures are initialized so corosync will crash during * member_add/remove */ orig_interfaces = malloc (sizeof (struct totem_interface) * INTERFACE_MAX); assert(orig_interfaces != NULL); new_interfaces = malloc (sizeof (struct totem_interface) * INTERFACE_MAX); assert(new_interfaces != NULL); memcpy(orig_interfaces, totem_config->interfaces, sizeof (struct totem_interface) * INTERFACE_MAX); } /* Clear out nodelist so we can put the new one in if needed */ for (i = 0; i < totem_config->interface_count; 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("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 (strcmp(tmp_key, "ring0_addr") != 0) { continue; } snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.", node_pos); iter2 = icmap_iter_init(tmp_key); while ((iter_key2 = icmap_iter_next(iter2, NULL, NULL)) != NULL) { unsigned int nodeid; snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.nodeid", node_pos); if (icmap_get_uint32(tmp_key, &nodeid) != CS_OK) { } 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 (icmap_get_string(iter_key2, &node_addr_str) != CS_OK) { continue; } 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 != -1) { totem_config->interfaces[linknumber].member_list[member_count].nodeid = nodeid; totem_config->interfaces[linknumber].member_count++; } free(node_addr_str); } icmap_iter_finalize(iter2); } icmap_iter_finalize(iter); if (reload) { memcpy(new_interfaces, totem_config->interfaces, sizeof (struct totem_interface) * INTERFACE_MAX); compute_interfaces_diff(totem_config->interface_count, orig_interfaces, new_interfaces); free(new_interfaces); free(orig_interfaces); } } static void nodelist_dynamic_notify( int32_t event, const char *key_name, struct icmap_notify_value new_val, struct icmap_notify_value old_val, void *user_data) { int res; unsigned int ring_no; unsigned int member_no; char tmp_str[ICMAP_KEYNAME_MAXLEN]; uint8_t reloading; struct totem_config *totem_config = (struct totem_config *)user_data; /* * 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.totemconfig_reload_in_progress", &reloading) == CS_OK && reloading) { return ; } res = sscanf(key_name, "nodelist.node.%u.ring%u%s", &member_no, &ring_no, tmp_str); if (res != 3) return ; if (strcmp(tmp_str, "_addr") != 0) { return; } put_nodelist_members_to_config(totem_config, 1); } /* * Tries to find node (node_pos) in config nodelist which address matches any * local interface. Address can be stored in ring0_addr or if ipaddr_key_prefix is not NULL * key with prefix ipaddr_key is used (there can be multiuple of them) * This function differs * from find_local_node_in_nodelist because it doesn't need bindnetaddr, * but doesn't work when bind addr is network address (so IP must be exact * match). * * Returns 1 on success (address was found, node_pos is then correctly set) or 0 on failure. */ int totem_config_find_local_addr_in_nodelist(const char *ipaddr_key_prefix, unsigned int *node_pos) { struct qb_list_head addrs; struct totem_ip_if_address *if_addr; icmap_iter_t iter, iter2; const char *iter_key, *iter_key2; struct qb_list_head *list; const char *ipaddr_key; int ip_version; struct totem_ip_address node_addr; char *node_addr_str; int node_found = 0; int res = 0; char tmp_key[ICMAP_KEYNAME_MAXLEN]; if (totemip_getifaddrs(&addrs) == -1) { return 0; } ip_version = totem_config_get_ip_version(); 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; } if (strcmp(tmp_key, "ring0_addr") != 0) { continue; } if (icmap_get_string(iter_key, &node_addr_str) != CS_OK) { continue ; } free(node_addr_str); /* * ring0_addr found -> let's iterate thru ipaddr_key_prefix */ snprintf(tmp_key, sizeof(tmp_key), "nodelist.node.%u.%s", *node_pos, (ipaddr_key_prefix != NULL ? ipaddr_key_prefix : "ring0_addr")); iter2 = icmap_iter_init(tmp_key); while ((iter_key2 = icmap_iter_next(iter2, NULL, NULL)) != NULL) { /* * ring0_addr must be exact match, not prefix */ ipaddr_key = (ipaddr_key_prefix != NULL ? iter_key2 : tmp_key); if (icmap_get_string(ipaddr_key, &node_addr_str) != CS_OK) { continue ; } if (totemip_parse(&node_addr, node_addr_str, ip_version) == -1) { free(node_addr_str); continue ; } free(node_addr_str); /* * Try to match ip with if_addrs */ node_found = 0; qb_list_for_each(list, &(addrs)) { if_addr = qb_list_entry(list, struct totem_ip_if_address, list); if (totemip_equal(&node_addr, &if_addr->ip_addr)) { node_found = 1; break; } } if (node_found) { break ; } } icmap_iter_finalize(iter2); if (node_found) { break ; } } icmap_iter_finalize(iter); totemip_freeifaddrs(&addrs); return (node_found); } static void config_convert_nodelist_to_interface(struct totem_config *totem_config) { int res = 0; unsigned 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; if (totem_config_find_local_addr_in_nodelist(NULL, &node_pos)) { /* * We found node, so create interface section */ snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.", node_pos); iter = icmap_iter_init(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(iter_key, &node_addr_str) != CS_OK) { continue; } snprintf(tmp_key2, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.bindnetaddr", linknumber); icmap_set_string(tmp_key2, node_addr_str); free(node_addr_str); } icmap_iter_finalize(iter); } } extern int totem_config_read ( struct totem_config *totem_config, const char **error_string, uint64_t *warnings) { int res = 0; char *str; unsigned int linknumber = 0; int member_count = 0; 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; uint16_t u16; uint32_t u32; char *cluster_name = NULL; 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; } 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); if (totem_get_crypto(totem_config) != 0) { *error_string = "crypto_cipher requires crypto_hash with value other than none"; return -1; } 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); if (icmap_get_string("totem.cluster_name", &cluster_name) != CS_OK) { cluster_name = NULL; } totem_config->ip_version = totem_config_get_ip_version(); 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(totem_config); } else { free(str); } /* * Broadcast option is global but set in interface section, * so reset before processing interfaces. */ totem_config->broadcast_use = 0; iter = icmap_iter_init("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) { continue; } member_count = 0; linknumber = atoi(linknumber_key); if (linknumber >= INTERFACE_MAX) { free(cluster_name); 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; return -1; } /* * Get the bind net address */ if (icmap_get_string(iter_key, &str) == CS_OK) { res = totemip_parse (&totem_config->interfaces[linknumber].bindnet, str, totem_config->ip_version); free(str); } /* * Get interface multicast address */ snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastaddr", linknumber); if (icmap_get_string(tmp_key, &str) == CS_OK) { res = totemip_parse (&totem_config->interfaces[linknumber].mcast_addr, str, totem_config->ip_version); free(str); } else { /* * 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. */ (void)get_cluster_mcast_addr (cluster_name, linknumber, totem_config->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); } /* * Get mcast port */ snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastport", linknumber); if (icmap_get_uint16(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; } } /* * Get the TTL */ totem_config->interfaces[linknumber].ttl = 1; snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.ttl", linknumber); if (icmap_get_uint8(tmp_key, &u8) == CS_OK) { totem_config->interfaces[linknumber].ttl = u8; } /* * 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(tmp_key, &u8) == CS_OK) { totem_config->interfaces[linknumber].knet_link_priority = u8; } totem_config->interfaces[linknumber].knet_ping_interval = KNET_PING_INTERVAL; snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_ping_interval", linknumber); if (icmap_get_uint32(tmp_key, &u32) == CS_OK) { totem_config->interfaces[linknumber].knet_ping_interval = u32; } totem_config->interfaces[linknumber].knet_ping_timeout = KNET_PING_TIMEOUT; snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.knet_ping_timeout", linknumber); if (icmap_get_uint32(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(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(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(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(member_iter_key, &str) == CS_OK) { res = totemip_parse (&totem_config->interfaces[linknumber].member_list[member_count++], str, totem_config->ip_version); } } icmap_iter_finalize(member_iter); totem_config->interfaces[linknumber].member_count = member_count; totem_config->interface_count++; } icmap_iter_finalize(iter); /* * Use broadcast is global, so if set, make sure to fill mcast addr correctly */ if (totem_config->broadcast_use) { for (linknumber = 0; linknumber < totem_config->interface_count; linknumber++) { totemip_parse (&totem_config->interfaces[linknumber].mcast_addr, "255.255.255.255", 0); } } /* * Store automatically generated items back to icmap */ for (i = 0; i < totem_config->interface_count; i++) { 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); } } 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; } if (strcmp (str, "udp") == 0) { totem_config->transport_number = TOTEM_TRANSPORT_UDP; } if (strcmp (str, "knet") == 0) { totem_config->transport_number = TOTEM_TRANSPORT_KNET; } free(str); } free(cluster_name); /* * Check existence of nodelist */ if (icmap_get_string("nodelist.node.0.ring0_addr", &str) == CS_OK) { free(str); /* * find local node */ local_node_pos = find_local_node_in_nodelist(totem_config); if (local_node_pos != -1) { icmap_set_uint32("nodelist.local_node_pos", local_node_pos); 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; } /* * Make localnode ring0_addr read only, so we can be sure that local * node never changes. If rebinding to other IP would be in future * supported, this must be changed and handled properly! */ snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "nodelist.node.%u.ring0_addr", local_node_pos); icmap_set_ro_access(tmp_key, 0, 1); icmap_set_ro_access("nodelist.local_node_pos", 0, 1); } put_nodelist_members_to_config(totem_config, 0); } /* * Get things that might change in the future (and can depend on totem_config->interfaces); */ totem_volatile_config_read(totem_config, NULL); icmap_set_uint8("config.totemconfig_reload_in_progress", 0); 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, j; unsigned int interface_max = INTERFACE_MAX; unsigned int port1, port2; if (totem_config->interface_count == 0) { error_reason = "No interfaces defined"; goto parse_error; } for (i = 0; i < totem_config->interface_count; i++) { /* * Some error checking of parsed data to make sure its valid */ struct totem_ip_address null_addr; memset (&null_addr, 0, sizeof (struct totem_ip_address)); if ((totem_config->transport_number == 0) && memcmp (&totem_config->interfaces[i].mcast_addr, &null_addr, sizeof (struct totem_ip_address)) == 0) { error_reason = "No multicast address specified"; goto parse_error; } if (totem_config->interfaces[i].ip_port == 0) { error_reason = "No multicast port specified"; goto parse_error; } if (totem_config->interfaces[i].ttl > 255) { error_reason = "Invalid TTL (should be 0..255)"; goto parse_error; } if (totem_config->transport_number != TOTEM_TRANSPORT_UDP && totem_config->interfaces[i].ttl != 1) { error_reason = "Can only set ttl on multicast transport types"; goto parse_error; } if (totem_config->interfaces[i].knet_link_priority > 255) { error_reason = "Invalid link priority (should be 0..255)"; goto parse_error; } if (totem_config->transport_number != TOTEM_TRANSPORT_KNET && totem_config->interfaces[i].knet_link_priority != 1) { error_reason = "Can only set link priority on knet transport type"; goto parse_error; } if (totem_config->interfaces[i].mcast_addr.family == AF_INET6 && totem_config->node_id == 0) { error_reason = "An IPV6 network requires that a node ID be specified."; 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) { error_reason = "Multicast address family does not match bind address family"; goto parse_error; } if (totemip_is_mcast (&totem_config->interfaces[i].mcast_addr) != 0) { error_reason = "mcastaddr is not a correct multicast address."; goto parse_error; } } if (totem_config->interfaces[0].bindnet.family != totem_config->interfaces[i].bindnet.family) { error_reason = "Not all bind address belong to the same IP family"; goto parse_error; } /* * Ensure mcast address/port differs */ if (totem_config->transport_number == TOTEM_TRANSPORT_UDP) { for (j = i + 1; j < totem_config->interface_count; j++) { port1 = totem_config->interfaces[i].ip_port; port2 = totem_config->interfaces[j].ip_port; if (totemip_equal(&totem_config->interfaces[i].mcast_addr, &totem_config->interfaces[j].mcast_addr) && (((port1 > port2 ? port1 : port2) - (port1 < port2 ? port1 : port2)) <= 1)) { error_reason = "Interfaces multicast address/port pair must differ"; 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, 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 < totem_config->interface_count) { snprintf (parse_error, sizeof(parse_error), "%d is too many configured interfaces for non-Knet transport.", totem_config->interface_count); 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) { 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; ssize_t expected_key_len = sizeof (totem_config->private_key); 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, expected_key_len); 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; } totem_config->private_key_len = expected_key_len; if (res != expected_key_len) { snprintf (error_string_response, sizeof(error_string_response), "Could only read %d bits of 1024 bits from %s.\n", res * 8, key_location); goto parse_error; } return 0; parse_error: *error_string = error_string_response; return (-1); } int totem_config_keyread ( struct totem_config *totem_config, const char **error_string) { int got_key = 0; char *key_location = NULL; int res; size_t key_len; memset (totem_config->private_key, 0, 128); totem_config->private_key_len = 128; 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("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("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 (icmap_get("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 store private key"); goto key_error; } } } /* In desperation we read the default filename */ if (!got_key) { const char *filename = getenv("COROSYNC_TOTEM_AUTHKEY_FILE"); if (!filename) filename = COROSYSCONFDIR "/authkey"; res = read_keyfile(filename, totem_config, error_string); if (res) goto key_error; } return (0); key_error: *error_string = error_string_response; return (-1); } 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); 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, 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, &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 */ } } static void totem_reload_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 local_node_pos; const char *error_string; /* Reload has completed */ if (*(uint8_t *)new_val.data == 0) { put_nodelist_members_to_config (totem_config, 1); totem_volatile_config_read (totem_config, NULL); log_printf(LOGSYS_LEVEL_DEBUG, "Configuration reloaded. Dumping actual totem config."); debug_dump_totem_config(totem_config); if (totem_volatile_config_validate(totem_config, &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 */ } /* Reinstate the local_node_pos */ local_node_pos = find_local_node_in_nodelist(totem_config); if (local_node_pos != -1) { icmap_set_uint32("nodelist.local_node_pos", local_node_pos); } icmap_set_uint8("config.totemconfig_reload_in_progress", 0); } else { icmap_set_uint8("config.totemconfig_reload_in_progress", 1); } } 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); icmap_track_add("config.reload_in_progress", ICMAP_TRACK_ADD | ICMAP_TRACK_MODIFY, totem_reload_notify, totem_config, &icmap_track); icmap_track_add("nodelist.node.", ICMAP_TRACK_ADD | ICMAP_TRACK_DELETE | ICMAP_TRACK_MODIFY | ICMAP_TRACK_PREFIX, nodelist_dynamic_notify, (void *)totem_config, &icmap_track); }