/* Return pipe FDs & child PID if sucessful */
int fork_new_instance(int nodeid, int *vq_sock, pid_t *childpid)
{
int pipes[2];
pid_t pid;
if (socketpair(AF_UNIX, SOCK_SEQPACKET | SOCK_NONBLOCK, 0, pipes)) {
return -1;
}
parent_socket = pipes[0];
switch ( (pid=fork()) ) {
case -1:
perror("fork failed");
return -1;
case 0:
/* child process - continue below */
break;
default:
/* parent process */
*vq_sock = pipes[1];
*childpid = pid;
return 0;
}
our_nodeid = nodeid;
poll_loop = qb_loop_create();
if (icmap_get_uint32("quorum.device.timeout", &qdevice_timeout) != CS_OK) {
qdevice_timeout = VOTEQUORUM_QDEVICE_DEFAULT_TIMEOUT;
}
set_local_node_pos(&corosync_api);
load_quorum_instance(&corosync_api);
qb_loop_poll_add(poll_loop,
QB_LOOP_MED,
parent_socket,
POLLIN,
NULL,
parent_pipe_read_fn);
/* Start it up! */
initial_sync(nodeid);
qb_loop_run(poll_loop);
return 0;
}
/* This is different to the one in totemconfig.c in that we already
* know the 'local' node ID, so we can just search for that.
* It needs to be here rather than at main config read time as it's
* (obviously) going to be different for each instance.
*/
static void set_local_node_pos(struct corosync_api_v1 *api)
{
icmap_iter_t iter;
uint32_t node_pos;
char name_str[ICMAP_KEYNAME_MAXLEN];
uint32_t nodeid;
const char *iter_key;
int res;
int found = 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, name_str);
if (res != 2) {
continue;
}
if (strcmp(name_str, "nodeid")) {
continue;
}
res = icmap_get_uint32(iter_key, &nodeid);
if (res == CS_OK) {
if (nodeid == our_nodeid) {
found = 1;
res = icmap_set_uint32("nodelist.local_node_pos", node_pos);
}
}
}
if (!found) {
/* This probably indicates a dynamically-added node
* set the pos to zero and use the votes of the
* first node in corosync.conf
*/
res = icmap_set_uint32("nodelist.local_node_pos", 0);
}
}
static unsigned int service_unlink_and_exit (
struct corosync_api_v1 *corosync_api,
const char *service_name,
unsigned int service_ver)
{
unsigned short service_id;
char *name_sufix;
int res;
const char *iter_key_name;
icmap_iter_t iter;
char key_name[ICMAP_KEYNAME_MAXLEN];
unsigned int found_service_ver;
char *found_service_name;
int service_found;
name_sufix = strrchr (service_name, '_');
if (name_sufix)
name_sufix++;
else
name_sufix = (char*)service_name;
service_found = 0;
found_service_name = NULL;
iter = icmap_iter_init("internal_configuration.service.");
while ((iter_key_name = icmap_iter_next(iter, NULL, NULL)) != NULL) {
res = sscanf(iter_key_name, "internal_configuration.service.%hu.%s", &service_id, key_name);
if (res != 2) {
continue;
}
snprintf(key_name, ICMAP_KEYNAME_MAXLEN, "internal_configuration.service.%hu.name", service_id);
free(found_service_name);
if (icmap_get_string(key_name, &found_service_name) != CS_OK) {
continue;
}
snprintf(key_name, ICMAP_KEYNAME_MAXLEN, "internal_configuration.service.%u.ver", service_id);
if (icmap_get_uint32(key_name, &found_service_ver) != CS_OK) {
continue;
}
if (service_ver == found_service_ver && strcmp(found_service_name, service_name) == 0) {
free(found_service_name);
service_found = 1;
break;
}
}
icmap_iter_finalize(iter);
if (service_found && service_id < SERVICES_COUNT_MAX
&& corosync_service[service_id] != NULL) {
if (corosync_service[service_id]->exec_exit_fn) {
res = corosync_service[service_id]->exec_exit_fn ();
if (res == -1) {
return (-1);
}
}
log_printf(LOGSYS_LEVEL_NOTICE,
"Service engine unloaded: %s",
corosync_service[service_id]->name);
corosync_service[service_id] = NULL;
cs_ipcs_service_destroy (service_id);
snprintf(key_name, ICMAP_KEYNAME_MAXLEN, "internal_configuration.service.%u.handle", service_id);
icmap_delete(key_name);
snprintf(key_name, ICMAP_KEYNAME_MAXLEN, "internal_configuration.service.%u.name", service_id);
icmap_delete(key_name);
snprintf(key_name, ICMAP_KEYNAME_MAXLEN, "internal_configuration.service.%u.ver", service_id);
icmap_delete(key_name);
}
return (0);
}
static void totem_volatile_config_read (struct totem_config *totem_config)
{
char *str;
icmap_get_uint32("totem.token", &totem_config->token_timeout);
icmap_get_uint32("totem.token_retransmit", &totem_config->token_retransmit_timeout);
icmap_get_uint32("totem.hold", &totem_config->token_hold_timeout);
icmap_get_uint32("totem.token_retransmits_before_loss_const", &totem_config->token_retransmits_before_loss_const);
icmap_get_uint32("totem.join", &totem_config->join_timeout);
icmap_get_uint32("totem.send_join", &totem_config->send_join_timeout);
icmap_get_uint32("totem.consensus", &totem_config->consensus_timeout);
icmap_get_uint32("totem.merge", &totem_config->merge_timeout);
icmap_get_uint32("totem.downcheck", &totem_config->downcheck_timeout);
icmap_get_uint32("totem.fail_recv_const", &totem_config->fail_to_recv_const);
icmap_get_uint32("totem.seqno_unchanged_const", &totem_config->seqno_unchanged_const);
icmap_get_uint32("totem.rrp_token_expired_timeout", &totem_config->rrp_token_expired_timeout);
icmap_get_uint32("totem.rrp_problem_count_timeout", &totem_config->rrp_problem_count_timeout);
icmap_get_uint32("totem.rrp_problem_count_threshold", &totem_config->rrp_problem_count_threshold);
icmap_get_uint32("totem.rrp_problem_count_mcast_threshold", &totem_config->rrp_problem_count_mcast_threshold);
icmap_get_uint32("totem.rrp_autorecovery_check_timeout", &totem_config->rrp_autorecovery_check_timeout);
icmap_get_uint32("totem.heartbeat_failures_allowed", &totem_config->heartbeat_failures_allowed);
icmap_get_uint32("totem.max_network_delay", &totem_config->max_network_delay);
icmap_get_uint32("totem.window_size", &totem_config->window_size);
icmap_get_uint32("totem.max_messages", &totem_config->max_messages);
icmap_get_uint32("totem.miss_count_const", &totem_config->miss_count_const);
if (icmap_get_string("totem.vsftype", &str) == CS_OK) {
totem_config->vsf_type = str;
}
}
extern int totem_config_read (
struct totem_config *totem_config,
const char **error_string,
uint64_t *warnings)
{
int res = 0;
char *str;
unsigned int ringnumber = 0;
int member_count = 0;
icmap_iter_t iter, member_iter;
const char *iter_key;
const char *member_iter_key;
char ringnumber_key[ICMAP_KEYNAME_MAXLEN];
char tmp_key[ICMAP_KEYNAME_MAXLEN];
uint8_t u8;
uint16_t u16;
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->rrp_mode, "none");
icmap_get_uint32("totem.version", (uint32_t *)&totem_config->version);
totem_get_crypto(totem_config);
if (icmap_get_string("totem.rrp_mode", &str) == CS_OK) {
strcpy (totem_config->rrp_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);
icmap_get_string("totem.cluster_name", &cluster_name);
/*
* Get things that might change in the future
*/
totem_volatile_config_read(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(totem_config);
} else {
free(str);
}
iter = icmap_iter_init("totem.interface.");
while ((iter_key = icmap_iter_next(iter, NULL, NULL)) != NULL) {
res = sscanf(iter_key, "totem.interface.%[^.].%s", ringnumber_key, tmp_key);
if (res != 2) {
continue;
}
if (strcmp(tmp_key, "bindnetaddr") != 0) {
continue;
}
member_count = 0;
ringnumber = atoi(ringnumber_key);
/*
* Get the bind net address
*/
if (icmap_get_string(iter_key, &str) == CS_OK) {
res = totemip_parse (&totem_config->interfaces[ringnumber].bindnet, str,
totem_config->interfaces[ringnumber].mcast_addr.family);
free(str);
}
/*
* Get interface multicast address
*/
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastaddr", ringnumber);
if (icmap_get_string(tmp_key, &str) == CS_OK) {
res = totemip_parse (&totem_config->interfaces[ringnumber].mcast_addr, str, 0);
free(str);
} else {
/*
* User not specified address -> autogenerate one from cluster_name key
* (if available)
*/
res = get_cluster_mcast_addr (cluster_name,
&totem_config->interfaces[ringnumber].bindnet,
ringnumber,
&totem_config->interfaces[ringnumber].mcast_addr);
}
totem_config->broadcast_use = 0;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.broadcast", ringnumber);
if (icmap_get_string(tmp_key, &str) == CS_OK) {
if (strcmp (str, "yes") == 0) {
totem_config->broadcast_use = 1;
totemip_parse (
&totem_config->interfaces[ringnumber].mcast_addr,
"255.255.255.255", 0);
}
free(str);
}
/*
* Get mcast port
*/
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.mcastport", ringnumber);
if (icmap_get_uint16(tmp_key, &totem_config->interfaces[ringnumber].ip_port) != CS_OK) {
if (totem_config->broadcast_use) {
totem_config->interfaces[ringnumber].ip_port = DEFAULT_PORT + (2 * ringnumber);
} else {
totem_config->interfaces[ringnumber].ip_port = DEFAULT_PORT;
}
}
/*
* Get the TTL
*/
totem_config->interfaces[ringnumber].ttl = 1;
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.ttl", ringnumber);
if (icmap_get_uint8(tmp_key, &u8) == CS_OK) {
totem_config->interfaces[ringnumber].ttl = u8;
}
snprintf(tmp_key, ICMAP_KEYNAME_MAXLEN, "totem.interface.%u.member.", ringnumber);
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[ringnumber].member_list[member_count++],
str, 0);
}
}
icmap_iter_finalize(member_iter);
totem_config->interfaces[ringnumber].member_count = member_count;
totem_config->interface_count++;
}
icmap_iter_finalize(iter);
/*
* 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_UDP;
if (icmap_get_string("totem.transport", &str) == CS_OK) {
if (strcmp (str, "udpu") == 0) {
totem_config->transport_number = TOTEM_TRANSPORT_UDPU;
}
if (strcmp (str, "iba") == 0) {
totem_config->transport_number = TOTEM_TRANSPORT_RDMA;
}
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);
}
add_totem_config_notification(totem_config);
return 0;
}
static void totemknet_refresh_config(
int32_t event,
const char *key_name,
struct icmap_notify_value new_val,
struct icmap_notify_value old_val,
void *user_data)
{
uint8_t reloading;
uint32_t value;
uint32_t link_no;
size_t num_nodes;
uint16_t host_ids[KNET_MAX_HOST];
int i;
int err;
char path[ICMAP_KEYNAME_MAXLEN];
struct totemknet_instance *instance = (struct totemknet_instance *)user_data;
ENTER();
/*
* 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;
}
if (icmap_get_uint32("totem.knet_pmtud_interval", &value) == CS_OK) {
instance->totem_config->knet_pmtud_interval = value;
knet_log_printf (LOGSYS_LEVEL_DEBUG, "knet_pmtud_interval now %d", value);
err = knet_handle_pmtud_setfreq(instance->knet_handle, instance->totem_config->knet_pmtud_interval);
if (err) {
KNET_LOGSYS_PERROR(errno, LOGSYS_LEVEL_WARNING, "knet_handle_pmtud_setfreq failed");
}
}
/* Get link parameters */
for (i = 0; i <= instance->num_links; i++) {
sprintf(path, "totem.interface.%d.knet_link_priority", i);
if (icmap_get_uint32(path, &value) == CS_OK) {
instance->totem_config->interfaces[i].knet_link_priority = value;
knet_log_printf (LOGSYS_LEVEL_DEBUG, "knet_link_priority on link %d now %d", i, value);
}
sprintf(path, "totem.interface.%d.knet_ping_interval", i);
if (icmap_get_uint32(path, &value) == CS_OK) {
instance->totem_config->interfaces[i].knet_ping_interval = value;
knet_log_printf (LOGSYS_LEVEL_DEBUG, "knet_ping_interval on link %d now %d", i, value);
}
sprintf(path, "totem.interface.%d.knet_ping_timeout", i);
if (icmap_get_uint32(path, &value) == CS_OK) {
instance->totem_config->interfaces[i].knet_ping_timeout = value;
knet_log_printf (LOGSYS_LEVEL_DEBUG, "knet_ping_timeout on link %d now %d", i, value);
}
sprintf(path, "totem.interface.%d.knet_ping_precision", i);
if (icmap_get_uint32(path, &value) == CS_OK) {
instance->totem_config->interfaces[i].knet_ping_precision = value;
knet_log_printf (LOGSYS_LEVEL_DEBUG, "knet_ping_precision on link %d now %d", i, value);
}
sprintf(path, "totem.interface.%d.knet_pong_count", i);
if (icmap_get_uint32(path, &value) == CS_OK) {
instance->totem_config->interfaces[i].knet_pong_count = value;
knet_log_printf (LOGSYS_LEVEL_DEBUG, "knet_pong_count on link %d now %d", i, value);
}
}
/* Configure link parameters for each node */
err = knet_host_get_host_list(instance->knet_handle, host_ids, &num_nodes);
if (err != 0) {
KNET_LOGSYS_PERROR(errno, LOGSYS_LEVEL_ERROR, "knet_host_get_host_list failed");
}
for (i=0; i<num_nodes; i++) {
for (link_no = 0; link_no < instance->num_links; link_no++) {
err = knet_link_set_ping_timers(instance->knet_handle, host_ids[i], link_no,
instance->totem_config->interfaces[link_no].knet_ping_interval,
instance->totem_config->interfaces[link_no].knet_ping_timeout,
instance->totem_config->interfaces[link_no].knet_ping_precision);
if (err) {
KNET_LOGSYS_PERROR(errno, LOGSYS_LEVEL_ERROR, "knet_link_set_ping_timers for node %d link %d failed", host_ids[i], link_no);
}
err = knet_link_set_pong_count(instance->knet_handle, host_ids[i], link_no,
instance->totem_config->interfaces[link_no].knet_pong_count);
if (err) {
KNET_LOGSYS_PERROR(errno, LOGSYS_LEVEL_ERROR, "knet_link_set_pong_count for node %d link %d failed",host_ids[i], link_no);
}
err = knet_link_set_priority(instance->knet_handle, host_ids[i], link_no,
instance->totem_config->interfaces[link_no].knet_link_priority);
if (err) {
KNET_LOGSYS_PERROR(errno, LOGSYS_LEVEL_ERROR, "knet_link_set_priority for node %d link %d failed", host_ids[i], link_no);
}
}
}
LEAVE();
}