diff --git a/lib/ais/plugin.c b/lib/ais/plugin.c
index 6c50601dae..b377624ff1 100644
--- a/lib/ais/plugin.c
+++ b/lib/ais/plugin.c
@@ -1,1676 +1,1686 @@
/*
* Copyright (C) 2004 Andrew Beekhof <andrew@beekhof.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USAA
*/
#include <crm_internal.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <signal.h>
#include <string.h>
#include <corosync/totem/totempg.h>
#include <corosync/engine/objdb.h>
#include <corosync/engine/config.h>
#include <config.h>
#include <crm/ais.h>
#include "plugin.h"
#include "utils.h"
#include <glib/ghash.h>
#include <sys/resource.h>
#include <sys/utsname.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <pthread.h>
#include <bzlib.h>
#include <pwd.h>
struct corosync_api_v1 *pcmk_api = NULL;
uint32_t plugin_has_votes = 0;
uint32_t plugin_expected_votes = 2;
int use_mgmtd = 0;
int plugin_log_level = LOG_DEBUG;
char *local_uname = NULL;
int local_uname_len = 0;
char *local_cname = NULL;
int local_cname_len = 0;
uint32_t local_nodeid = 0;
char *ipc_channel_name = NULL;
static uint64_t local_born_on = 0;
uint64_t membership_seq = 0;
pthread_t pcmk_wait_thread;
gboolean use_mcp = FALSE;
gboolean wait_active = TRUE;
gboolean have_reliable_membership_id = FALSE;
GHashTable *ipc_client_list = NULL;
GHashTable *membership_list = NULL;
GHashTable *membership_notify_list = NULL;
#define MAX_RESPAWN 100
#define LOOPBACK_ID 16777343
#define crm_flag_none 0x00000000
#define crm_flag_members 0x00000001
struct crm_identify_msg_s
{
coroipc_request_header_t header __attribute__((aligned(8)));
uint32_t id;
uint32_t pid;
int32_t votes;
uint32_t processes;
char uname[256];
char version[256];
uint64_t born_on;
} __attribute__((packed));
static crm_child_t pcmk_children[] = {
{ 0, crm_proc_none, crm_flag_none, 0, 0, FALSE, "none", NULL, NULL, NULL, NULL },
{ 0, crm_proc_ais, crm_flag_none, 0, 0, FALSE, "ais", NULL, NULL, NULL, NULL },
{ 0, crm_proc_lrmd, crm_flag_none, 3, 0, TRUE, "lrmd", NULL, HB_DAEMON_DIR"/lrmd", NULL, NULL },
{ 0, crm_proc_cib, crm_flag_members, 2, 0, TRUE, "cib", CRM_DAEMON_USER, CRM_DAEMON_DIR"/cib", NULL, NULL },
{ 0, crm_proc_crmd, crm_flag_members, 6, 0, TRUE, "crmd", CRM_DAEMON_USER, CRM_DAEMON_DIR"/crmd", NULL, NULL },
{ 0, crm_proc_attrd, crm_flag_none, 4, 0, TRUE, "attrd", CRM_DAEMON_USER, CRM_DAEMON_DIR"/attrd", NULL, NULL },
{ 0, crm_proc_stonithd, crm_flag_none, 0, 0, TRUE, "stonithd", NULL, "/bin/false", NULL, NULL },
{ 0, crm_proc_pe, crm_flag_none, 5, 0, TRUE, "pengine", CRM_DAEMON_USER, CRM_DAEMON_DIR"/pengine", NULL, NULL },
{ 0, crm_proc_mgmtd, crm_flag_none, 7, 0, TRUE, "mgmtd", NULL, HB_DAEMON_DIR"/mgmtd", NULL, NULL },
{ 0, crm_proc_stonith_ng, crm_flag_none, 1, 0, TRUE, "stonith-ng", NULL, CRM_DAEMON_DIR"/stonithd", NULL, NULL },
};
void send_cluster_id(void);
int send_cluster_msg_raw(const AIS_Message *ais_msg);
char *pcmk_generate_membership_data(void);
gboolean check_message_sanity(const AIS_Message *msg, const char *data);
typedef const void ais_void_ptr;
int pcmk_shutdown(void);
void pcmk_peer_update(enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id);
int pcmk_startup (struct corosync_api_v1 *corosync_api);
int pcmk_config_init(struct corosync_api_v1 *corosync_api);
int pcmk_ipc_exit (void *conn);
int pcmk_ipc_connect (void *conn);
void pcmk_ipc(void *conn, ais_void_ptr *msg);
void pcmk_exec_dump(void);
void pcmk_cluster_swab(void *msg);
void pcmk_cluster_callback(ais_void_ptr *message, unsigned int nodeid);
void pcmk_nodeid(void *conn, ais_void_ptr *msg);
void pcmk_nodes(void *conn, ais_void_ptr *msg);
void pcmk_notify(void *conn, ais_void_ptr *msg);
void pcmk_remove_member(void *conn, ais_void_ptr *msg);
void pcmk_quorum(void *conn, ais_void_ptr *msg);
void pcmk_cluster_id_swab(void *msg);
void pcmk_cluster_id_callback(ais_void_ptr *message, unsigned int nodeid);
void ais_remove_peer(char *node_id);
static uint32_t get_process_list(void)
{
int lpc = 0;
uint32_t procs = crm_proc_ais;
if(use_mcp) {
return 0;
}
for (lpc = 0; lpc < SIZEOF(pcmk_children); lpc++) {
if(pcmk_children[lpc].pid != 0) {
procs |= pcmk_children[lpc].flag;
}
}
return procs;
}
static struct corosync_lib_handler pcmk_lib_service[] =
{
{ /* 0 */
.lib_handler_fn = pcmk_ipc,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED,
},
{ /* 1 */
.lib_handler_fn = pcmk_nodes,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED,
},
{ /* 2 */
.lib_handler_fn = pcmk_notify,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED,
},
{ /* 3 */
.lib_handler_fn = pcmk_nodeid,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED,
},
{ /* 4 */
.lib_handler_fn = pcmk_remove_member,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED,
},
{ /* 5 */
.lib_handler_fn = pcmk_quorum,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED,
},
};
static struct corosync_exec_handler pcmk_exec_service[] =
{
{ /* 0 */
.exec_handler_fn = pcmk_cluster_callback,
.exec_endian_convert_fn = pcmk_cluster_swab
},
{ /* 1 */
.exec_handler_fn = pcmk_cluster_id_callback,
.exec_endian_convert_fn = pcmk_cluster_id_swab
}
};
/*
* Exports the interface for the service
*/
struct corosync_service_engine pcmk_service_handler = {
.name = (unsigned char *)"Pacemaker Cluster Manager "PACKAGE_VERSION,
.id = PCMK_SERVICE_ID,
.private_data_size = 0,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED,
.allow_inquorate = CS_LIB_ALLOW_INQUORATE,
.lib_init_fn = pcmk_ipc_connect,
.lib_exit_fn = pcmk_ipc_exit,
.exec_init_fn = pcmk_startup,
.exec_exit_fn = pcmk_shutdown,
.config_init_fn = pcmk_config_init,
.priority = 50,
.lib_engine = pcmk_lib_service,
.lib_engine_count = sizeof (pcmk_lib_service) / sizeof (struct corosync_lib_handler),
.exec_engine = pcmk_exec_service,
.exec_engine_count = sizeof (pcmk_exec_service) / sizeof (struct corosync_exec_handler),
.confchg_fn = pcmk_peer_update,
.exec_dump_fn = pcmk_exec_dump,
/* void (*sync_init) (void); */
/* int (*sync_process) (void); */
/* void (*sync_activate) (void); */
/* void (*sync_abort) (void); */
};
/*
* Dynamic Loader definition
*/
struct corosync_service_engine *pcmk_get_handler_ver0 (void);
struct corosync_service_engine_iface_ver0 pcmk_service_handler_iface = {
.corosync_get_service_engine_ver0 = pcmk_get_handler_ver0
};
static struct lcr_iface openais_pcmk_ver0[2] = {
{
.name = "pacemaker",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = NULL
},
{
.name = "pacemaker",
.version = 1,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = NULL
}
};
static struct lcr_comp pcmk_comp_ver0 = {
.iface_count = 2,
.ifaces = openais_pcmk_ver0
};
struct corosync_service_engine *pcmk_get_handler_ver0 (void)
{
return (&pcmk_service_handler);
}
__attribute__ ((constructor)) static void register_this_component (void) {
lcr_interfaces_set (&openais_pcmk_ver0[0], &pcmk_service_handler_iface);
lcr_interfaces_set (&openais_pcmk_ver0[1], &pcmk_service_handler_iface);
lcr_component_register (&pcmk_comp_ver0);
}
static int plugin_has_quorum(void)
{
if((plugin_expected_votes >> 1) < plugin_has_votes) {
return 1;
}
return 0;
}
static void update_expected_votes(int value)
{
if(value < plugin_has_votes) {
/* Never drop below the number of connected nodes */
ais_info("Cannot update expected quorum votes %d -> %d:"
" value cannot be less that the current number of votes",
plugin_expected_votes, value);
} else if(plugin_expected_votes != value) {
ais_info("Expected quorum votes %d -> %d",
plugin_expected_votes, value);
plugin_expected_votes = value;
}
}
/* Create our own local copy of the config so we can navigate it */
static void process_ais_conf(void)
{
char *value = NULL;
gboolean any_log = FALSE;
hdb_handle_t top_handle = 0;
hdb_handle_t local_handle = 0;
ais_info("Reading configure");
top_handle = config_find_init(pcmk_api, "logging");
local_handle = config_find_next(pcmk_api, "logging", top_handle);
get_config_opt(pcmk_api, local_handle, "debug", &value, "on");
if(ais_get_boolean(value)) {
plugin_log_level = LOG_DEBUG;
pcmk_env.debug = "1";
} else {
plugin_log_level = LOG_INFO;
pcmk_env.debug = "0";
}
get_config_opt(pcmk_api, local_handle, "to_logfile", &value, "off");
if(ais_get_boolean(value)) {
get_config_opt(pcmk_api, local_handle, "logfile", &value, NULL);
if(value == NULL) {
ais_err("Logging to a file requested but no log file specified");
} else {
uid_t pcmk_uid = geteuid();
uid_t pcmk_gid = getegid();
FILE *logfile = fopen(value, "a");
if(logfile) {
int logfd = fileno(logfile);
pcmk_env.logfile = value;
/* Ensure the file has the correct permissions */
fchown(logfd, pcmk_uid, pcmk_gid);
fchmod(logfd, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP);
fprintf(logfile, "Set r/w permissions for uid=%d, gid=%d on %s\n",
pcmk_uid, pcmk_gid, value);
fflush(logfile);
fsync(logfd);
fclose(logfile);
any_log = TRUE;
} else {
ais_err("Couldn't create logfile: %s", value);
}
}
}
get_config_opt(pcmk_api, local_handle, "to_syslog", &value, "on");
if(any_log && ais_get_boolean(value) == FALSE) {
ais_info("User configured file based logging and explicitly disabled syslog.");
value = "none";
} else {
if(ais_get_boolean(value) == FALSE) {
ais_err("Please enable some sort of logging, either 'to_file: on' or 'to_syslog: on'.");
ais_err("If you use file logging, be sure to also define a value for 'logfile'");
}
get_config_opt(pcmk_api, local_handle, "syslog_facility", &value, "daemon");
}
pcmk_env.syslog = value;
config_find_done(pcmk_api, local_handle);
top_handle = config_find_init(pcmk_api, "quorum");
local_handle = config_find_next(pcmk_api, "quorum", top_handle);
get_config_opt(pcmk_api, local_handle, "provider", &value, NULL);
if(value && ais_str_eq("quorum_cman", value)) {
pcmk_env.quorum = "cman";
}
top_handle = config_find_init(pcmk_api, "service");
local_handle = config_find_next(pcmk_api, "service", top_handle);
while(local_handle) {
value = NULL;
pcmk_api->object_key_get(local_handle, "name", strlen("name"), (void**)&value, NULL);
if(ais_str_eq("pacemaker", value)) {
break;
}
local_handle = config_find_next(pcmk_api, "service", top_handle);
}
get_config_opt(pcmk_api, local_handle, "ver", &value, "0");
if(ais_str_eq(value, "1")) {
ais_info("Enabling MCP mode: Use the Pacemaker init script to complete Pacemaker startup");
use_mcp = TRUE;
}
get_config_opt(pcmk_api, local_handle, "clustername", &local_cname, "pcmk");
local_cname_len = strlen(local_cname);
get_config_opt(pcmk_api, local_handle, "use_logd", &value, "no");
pcmk_env.use_logd = value;
get_config_opt(pcmk_api, local_handle, "use_mgmtd", &value, "no");
if(ais_get_boolean(value) == FALSE) {
int lpc = 0;
for (; lpc < SIZEOF(pcmk_children); lpc++) {
if(crm_proc_mgmtd & pcmk_children[lpc].flag) {
/* Disable mgmtd startup */
pcmk_children[lpc].start_seq = 0;
break;
}
}
}
config_find_done(pcmk_api, local_handle);
}
int pcmk_config_init(struct corosync_api_v1 *unused)
{
return 0;
}
static void *pcmk_wait_dispatch (void *arg)
{
struct timespec waitsleep = {
.tv_sec = 1,
.tv_nsec = 0
};
while(wait_active) {
int lpc = 0;
for (; lpc < SIZEOF(pcmk_children); lpc++) {
if(pcmk_children[lpc].pid > 0) {
int status;
pid_t pid = wait4(
pcmk_children[lpc].pid, &status, WNOHANG, NULL);
if(pid == 0) {
continue;
} else if(pid < 0) {
ais_perror("Call to wait4(%s) failed", pcmk_children[lpc].name);
continue;
}
/* cleanup */
pcmk_children[lpc].pid = 0;
pcmk_children[lpc].conn = NULL;
pcmk_children[lpc].async_conn = NULL;
if(WIFSIGNALED(status)) {
int sig = WTERMSIG(status);
ais_err("Child process %s terminated with signal %d"
" (pid=%d, core=%s)",
pcmk_children[lpc].name, sig, pid,
WCOREDUMP(status)?"true":"false");
} else if (WIFEXITED(status)) {
int rc = WEXITSTATUS(status);
do_ais_log(rc==0?LOG_NOTICE:LOG_ERR, "Child process %s exited (pid=%d, rc=%d)",
pcmk_children[lpc].name, pid, rc);
if(rc == 100) {
ais_notice("Child process %s no longer wishes"
" to be respawned", pcmk_children[lpc].name);
pcmk_children[lpc].respawn = FALSE;
}
}
+ /* Broadcast the fact that one of our processes died
+ *
+ * Try to get some logging of the cause out first though
+ * because we're probably about to get fenced
+ *
+ * Potentially do this only if respawn_count > N
+ * to allow for local recovery
+ */
+ send_cluster_id();
+
pcmk_children[lpc].respawn_count += 1;
if(pcmk_children[lpc].respawn_count > MAX_RESPAWN) {
ais_err("Child respawn count exceeded by %s",
pcmk_children[lpc].name);
pcmk_children[lpc].respawn = FALSE;
}
if(pcmk_children[lpc].respawn) {
ais_notice("Respawning failed child process: %s",
pcmk_children[lpc].name);
spawn_child(&(pcmk_children[lpc]));
}
send_cluster_id();
}
}
sched_yield ();
nanosleep (&waitsleep, 0);
}
return 0;
}
static uint32_t pcmk_update_nodeid(void)
{
int last = local_nodeid;
local_nodeid = pcmk_api->totem_nodeid_get();
if(last != local_nodeid) {
if(last == 0) {
ais_info("Local node id: %u", local_nodeid);
} else {
char *last_s = NULL;
ais_malloc0(last_s, 32);
ais_warn("Detected local node id change: %u -> %u", last, local_nodeid);
snprintf(last_s, 31, "%u", last);
ais_remove_peer(last_s);
ais_free(last_s);
}
update_member(local_nodeid, 0, 0, 1, 0, local_uname, CRM_NODE_MEMBER, NULL);
}
return local_nodeid;
}
static void build_path(const char *path_c, mode_t mode)
{
int offset = 1, len = 0;
char *path = ais_strdup(path_c);
AIS_CHECK(path != NULL, return);
for(len = strlen(path); offset < len; offset++) {
if(path[offset] == '/') {
path[offset] = 0;
if(mkdir(path, mode) < 0 && errno != EEXIST) {
ais_perror("Could not create directory '%s'", path);
break;
}
path[offset] = '/';
}
}
if(mkdir(path, mode) < 0 && errno != EEXIST) {
ais_perror("Could not create directory '%s'", path);
}
ais_free(path);
}
int pcmk_startup(struct corosync_api_v1 *init_with)
{
int rc = 0;
int lpc = 0;
int start_seq = 1;
struct utsname us;
struct rlimit cores;
static int max = SIZEOF(pcmk_children);
uid_t pcmk_uid = 0;
gid_t pcmk_gid = 0;
uid_t root_uid = -1;
uid_t cs_uid = geteuid();
pcmk_user_lookup("root", &root_uid, NULL);
pcmk_api = init_with;
pcmk_env.debug = "0";
pcmk_env.logfile = NULL;
pcmk_env.use_logd = "false";
pcmk_env.syslog = "daemon";
if(cs_uid != root_uid) {
ais_err("Corosync must be configured to start as 'root',"
" otherwise Pacemaker cannot manage services."
" Expected %d got %d", root_uid, cs_uid);
return -1;
}
process_ais_conf();
membership_list = g_hash_table_new_full(
g_direct_hash, g_direct_equal, NULL, destroy_ais_node);
membership_notify_list = g_hash_table_new(g_direct_hash, g_direct_equal);
ipc_client_list = g_hash_table_new(g_direct_hash, g_direct_equal);
ais_info("CRM: Initialized");
log_printf(LOG_INFO, "Logging: Initialized %s\n", __PRETTY_FUNCTION__);
rc = getrlimit(RLIMIT_CORE, &cores);
if(rc < 0) {
ais_perror("Cannot determine current maximum core size.");
} else {
if (cores.rlim_max == 0 && geteuid() == 0) {
cores.rlim_max = RLIM_INFINITY;
} else {
ais_info("Maximum core file size is: %lu", cores.rlim_max);
}
cores.rlim_cur = cores.rlim_max;
rc = setrlimit(RLIMIT_CORE, &cores);
if(rc < 0) {
ais_perror("Core file generation will remain disabled."
" Core files are an important diagnositic tool,"
" please consider enabling them by default.");
}
#if 0
/* system() is not thread-safe, can't call from here
* Actually, its a pretty hacky way to try and achieve this anyway
*/
if(system("echo 1 > /proc/sys/kernel/core_uses_pid") != 0) {
ais_perror("Could not enable /proc/sys/kernel/core_uses_pid");
}
#endif
}
if(pcmk_user_lookup(CRM_DAEMON_USER, &pcmk_uid, &pcmk_gid) < 0) {
ais_err("Cluster user %s does not exist, aborting Pacemaker startup", CRM_DAEMON_USER);
return TRUE;
}
mkdir(CRM_STATE_DIR, 0750);
chown(CRM_STATE_DIR, pcmk_uid, pcmk_gid);
/* Used by stonithd */
build_path(HA_STATE_DIR"/heartbeat", 0755);
/* Used by RAs - Leave owned by root */
build_path(CRM_RSCTMP_DIR, 0755);
rc = uname(&us);
AIS_ASSERT(rc == 0);
local_uname = ais_strdup(us.nodename);
local_uname_len = strlen(local_uname);
ais_info("Service: %d", PCMK_SERVICE_ID);
ais_info("Local hostname: %s", local_uname);
pcmk_update_nodeid();
if(use_mcp == FALSE) {
pthread_create (&pcmk_wait_thread, NULL, pcmk_wait_dispatch, NULL);
for (start_seq = 1; start_seq < max; start_seq++) {
/* dont start anything with start_seq < 1 */
for (lpc = 0; lpc < max; lpc++) {
if(start_seq == pcmk_children[lpc].start_seq) {
spawn_child(&(pcmk_children[lpc]));
}
}
}
}
return 0;
}
/*
static void ais_print_node(const char *prefix, struct totem_ip_address *host)
{
int len = 0;
char *buffer = NULL;
ais_malloc0(buffer, INET6_ADDRSTRLEN+1);
inet_ntop(host->family, host->addr, buffer, INET6_ADDRSTRLEN);
len = strlen(buffer);
ais_info("%s: %.*s", prefix, len, buffer);
ais_free(buffer);
}
*/
#if 0
/* copied here for reference from exec/totempg.c */
char *totempg_ifaces_print (unsigned int nodeid)
{
static char iface_string[256 * INTERFACE_MAX];
char one_iface[64];
struct totem_ip_address interfaces[INTERFACE_MAX];
char **status;
unsigned int iface_count;
unsigned int i;
int res;
iface_string[0] = '\0';
res = totempg_ifaces_get (nodeid, interfaces, &status, &iface_count);
if (res == -1) {
return ("no interface found for nodeid");
}
for (i = 0; i < iface_count; i++) {
sprintf (one_iface, "r(%d) ip(%s), ",
i, totemip_print (&interfaces[i]));
strcat (iface_string, one_iface);
}
return (iface_string);
}
#endif
static void ais_mark_unseen_peer_dead(
gpointer key, gpointer value, gpointer user_data)
{
int *changed = user_data;
crm_node_t *node = value;
if(node->last_seen != membership_seq
&& ais_str_eq(CRM_NODE_LOST, node->state) == FALSE) {
ais_info("Node %s was not seen in the previous transition", node->uname);
*changed += update_member(node->id, 0, membership_seq, node->votes,
node->processes, node->uname, CRM_NODE_LOST, NULL);
}
}
void pcmk_peer_update (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id
)
{
int lpc = 0;
int changed = 0;
int do_update = 0;
AIS_ASSERT(ring_id != NULL);
switch(configuration_type) {
case TOTEM_CONFIGURATION_REGULAR:
do_update = 1;
break;
case TOTEM_CONFIGURATION_TRANSITIONAL:
break;
}
membership_seq = ring_id->seq;
ais_notice("%s membership event on ring %lld: memb=%ld, new=%ld, lost=%ld",
do_update?"Stable":"Transitional", ring_id->seq,
(long)member_list_entries, (long)joined_list_entries, (long)left_list_entries);
if(do_update == 0) {
for(lpc = 0; lpc < joined_list_entries; lpc++) {
const char *prefix = "new: ";
uint32_t nodeid = joined_list[lpc];
ais_info("%s %s %u", prefix, member_uname(nodeid), nodeid);
}
for(lpc = 0; lpc < member_list_entries; lpc++) {
const char *prefix = "memb:";
uint32_t nodeid = member_list[lpc];
ais_info("%s %s %u", prefix, member_uname(nodeid), nodeid);
}
for(lpc = 0; lpc < left_list_entries; lpc++) {
const char *prefix = "lost:";
uint32_t nodeid = left_list[lpc];
ais_info("%s %s %u", prefix, member_uname(nodeid), nodeid);
}
return;
}
for(lpc = 0; lpc < joined_list_entries; lpc++) {
const char *prefix = "NEW: ";
uint32_t nodeid = joined_list[lpc];
crm_node_t *node = NULL;
changed += update_member(
nodeid, 0, membership_seq, -1, 0, NULL, CRM_NODE_MEMBER, NULL);
ais_info("%s %s %u", prefix, member_uname(nodeid), nodeid);
node = g_hash_table_lookup(membership_list, GUINT_TO_POINTER(nodeid));
if(node->addr == NULL) {
const char *addr = totempg_ifaces_print(nodeid);
node->addr = ais_strdup(addr);
ais_debug("Node %u has address %s", nodeid, node->addr);
}
}
for(lpc = 0; lpc < member_list_entries; lpc++) {
const char *prefix = "MEMB:";
uint32_t nodeid = member_list[lpc];
changed += update_member(
nodeid, 0, membership_seq, -1, 0, NULL, CRM_NODE_MEMBER, NULL);
ais_info("%s %s %u", prefix, member_uname(nodeid), nodeid);
}
for(lpc = 0; lpc < left_list_entries; lpc++) {
const char *prefix = "LOST:";
uint32_t nodeid = left_list[lpc];
changed += update_member(
nodeid, 0, membership_seq, -1, 0, NULL, CRM_NODE_LOST, NULL);
ais_info("%s %s %u", prefix, member_uname(nodeid), nodeid);
}
if(changed && joined_list_entries == 0 && left_list_entries == 0) {
ais_err("Something strange happened: %d", changed);
changed = 0;
}
ais_debug_2("Reaping unseen nodes...");
g_hash_table_foreach(membership_list, ais_mark_unseen_peer_dead, &changed);
if(member_list_entries > 1) {
/* Used to set born-on in send_cluster_id())
* We need to wait until we have at least one peer since first
* membership id is based on the one before we stopped and isn't reliable
*/
have_reliable_membership_id = TRUE;
}
if(changed) {
ais_debug("%d nodes changed", changed);
pcmk_update_nodeid();
send_member_notification();
}
send_cluster_id();
}
int pcmk_ipc_exit (void *conn)
{
int lpc = 0;
const char *client = NULL;
void *async_conn = conn;
for (; lpc < SIZEOF(pcmk_children); lpc++) {
if(pcmk_children[lpc].conn == conn) {
if(wait_active == FALSE) {
/* Make sure the shutdown loop exits */
pcmk_children[lpc].pid = 0;
}
pcmk_children[lpc].conn = NULL;
pcmk_children[lpc].async_conn = NULL;
client = pcmk_children[lpc].name;
break;
}
}
g_hash_table_remove(membership_notify_list, async_conn);
g_hash_table_remove(ipc_client_list, async_conn);
do_ais_log(client?LOG_INFO:(LOG_DEBUG+1), "Client %s (conn=%p, async-conn=%p) left",
client?client:"unknown-transient", conn, async_conn);
return (0);
}
int pcmk_ipc_connect (void *conn)
{
/* OpenAIS hasn't finished setting up the connection at this point
* Sending messages now messes up the protocol!
*/
return (0);
}
/*
* Executive message handlers
*/
void pcmk_cluster_swab(void *msg)
{
AIS_Message *ais_msg = msg;
ais_debug_3("Performing endian conversion...");
ais_msg->id = swab32 (ais_msg->id);
ais_msg->size = swab32 (ais_msg->size);
ais_msg->is_compressed = swab32 (ais_msg->is_compressed);
ais_msg->compressed_size = swab32 (ais_msg->compressed_size);
ais_msg->host.id = swab32 (ais_msg->host.id);
ais_msg->host.pid = swab32 (ais_msg->host.pid);
ais_msg->host.type = swab32 (ais_msg->host.type);
ais_msg->host.size = swab32 (ais_msg->host.size);
ais_msg->host.local = swab32 (ais_msg->host.local);
ais_msg->sender.id = swab32 (ais_msg->sender.id);
ais_msg->sender.pid = swab32 (ais_msg->sender.pid);
ais_msg->sender.type = swab32 (ais_msg->sender.type);
ais_msg->sender.size = swab32 (ais_msg->sender.size);
ais_msg->sender.local = swab32 (ais_msg->sender.local);
ais_msg->header.size = swab32 (ais_msg->header.size);
ais_msg->header.id = swab32 (ais_msg->header.id);
ais_msg->header.error = swab32 (ais_msg->header.error);
}
void pcmk_cluster_callback (
ais_void_ptr *message, unsigned int nodeid)
{
const AIS_Message *ais_msg = message;
ais_debug_2("Message from node %u (%s)",
nodeid, nodeid==local_nodeid?"local":"remote");
/* Shouldn't be required...
update_member(
ais_msg->sender.id, membership_seq, -1, 0, ais_msg->sender.uname, NULL);
*/
if(ais_msg->host.size == 0
|| ais_str_eq(ais_msg->host.uname, local_uname)) {
route_ais_message(ais_msg, FALSE);
} else {
ais_debug_3("Discarding Msg[%d] (dest=%s:%s, from=%s:%s)",
ais_msg->id, ais_dest(&(ais_msg->host)),
msg_type2text(ais_msg->host.type),
ais_dest(&(ais_msg->sender)),
msg_type2text(ais_msg->sender.type));
}
}
void pcmk_cluster_id_swab(void *msg)
{
struct crm_identify_msg_s *ais_msg = msg;
ais_debug_3("Performing endian conversion...");
ais_msg->id = swab32 (ais_msg->id);
ais_msg->pid = swab32 (ais_msg->pid);
ais_msg->votes = swab32 (ais_msg->votes);
ais_msg->processes = swab32 (ais_msg->processes);
ais_msg->born_on = swab64 (ais_msg->born_on);
ais_msg->header.size = swab32 (ais_msg->header.size);
ais_msg->header.id = swab32 (ais_msg->header.id);
}
void pcmk_cluster_id_callback (ais_void_ptr *message, unsigned int nodeid)
{
int changed = 0;
const struct crm_identify_msg_s *msg = message;
if(nodeid != msg->id) {
ais_err("Invalid message: Node %u claimed to be node %d",
nodeid, msg->id);
return;
}
ais_debug("Node update: %s (%s)", msg->uname, msg->version);
changed = update_member(
nodeid, msg->born_on, membership_seq, msg->votes, msg->processes, msg->uname, NULL, msg->version);
if(changed) {
send_member_notification();
}
}
struct res_overlay {
coroipc_response_header_t header __attribute((aligned(8)));
char buf[4096];
};
struct res_overlay *res_overlay = NULL;
static void send_ipc_ack(void *conn)
{
if(res_overlay == NULL) {
ais_malloc0(res_overlay, sizeof(struct res_overlay));
}
res_overlay->header.id = CRM_MESSAGE_IPC_ACK;
res_overlay->header.size = sizeof (coroipc_response_header_t);
res_overlay->header.error = CS_OK;
pcmk_api->ipc_response_send (conn, res_overlay, res_overlay->header.size);
}
/* local callbacks */
void pcmk_ipc(void *conn, ais_void_ptr *msg)
{
AIS_Message *mutable;
int type = 0, size = 0;
gboolean transient = TRUE;
const AIS_Message *ais_msg = (const AIS_Message*)msg;
void *async_conn = conn;
ais_debug_2("Message from client %p", conn);
if(check_message_sanity(msg, ((const AIS_Message*)msg)->data) == FALSE) {
/* The message is corrupted - ignore */
send_ipc_ack(conn); msg = NULL;
return;
}
/* Make a copy of the message here and ACK it
* The message is only valid until a response is sent
* but the response must also be sent _before_ we send anything else
*/
mutable = ais_msg_copy(ais_msg);
AIS_ASSERT(check_message_sanity(mutable, mutable->data));
size = mutable->header.size;
/* ais_malloc0(ais_msg, size); */
/* memcpy(ais_msg, msg, size); */
type = mutable->sender.type;
ais_debug_3("type: %d local: %d conn: %p host type: %d ais: %d sender pid: %d child pid: %d size: %d",
type, mutable->host.local, pcmk_children[type].conn, mutable->host.type, crm_msg_ais,
mutable->sender.pid, pcmk_children[type].pid, ((int)SIZEOF(pcmk_children)));
if(type > crm_msg_none && type < SIZEOF(pcmk_children)) {
/* known child process */
transient = FALSE;
}
#if 0
/* If this check fails, the order of pcmk_children probably
* doesn't match that of the crm_ais_msg_types enum
*/
AIS_CHECK(transient || mutable->sender.pid == pcmk_children[type].pid,
ais_err("Sender: %d, child[%d]: %d", mutable->sender.pid, type, pcmk_children[type].pid);
ais_free(mutable);
return);
#endif
if(transient == FALSE
&& type > crm_msg_none
&& mutable->host.local
&& pcmk_children[type].conn == NULL
&& mutable->host.type == crm_msg_ais) {
AIS_CHECK(mutable->sender.type != mutable->sender.pid,
ais_err("Pid=%d, type=%d", mutable->sender.pid, mutable->sender.type));
ais_info("Recorded connection %p for %s/%d",
conn, pcmk_children[type].name, pcmk_children[type].pid);
pcmk_children[type].conn = conn;
pcmk_children[type].async_conn = async_conn;
/* Make sure they have the latest membership */
if(pcmk_children[type].flags & crm_flag_members) {
char *update = pcmk_generate_membership_data();
g_hash_table_replace(membership_notify_list, async_conn, async_conn);
ais_info("Sending membership update "U64T" to %s",
membership_seq, pcmk_children[type].name);
send_client_msg(async_conn, crm_class_members, crm_msg_none,update);
}
} else if(transient) {
AIS_CHECK(mutable->sender.type == mutable->sender.pid,
ais_err("Pid=%d, type=%d", mutable->sender.pid, mutable->sender.type));
g_hash_table_replace(ipc_client_list, async_conn, GUINT_TO_POINTER(mutable->sender.pid));
}
mutable->sender.id = local_nodeid;
mutable->sender.size = local_uname_len;
memset(mutable->sender.uname, 0, MAX_NAME);
memcpy(mutable->sender.uname, local_uname, mutable->sender.size);
route_ais_message(mutable, TRUE);
send_ipc_ack(conn); msg = NULL;
ais_free(mutable);
}
int pcmk_shutdown (void)
{
int lpc = 0;
static int phase = 0;
static int max_wait = 0;
static time_t next_log = 0;
static int max = SIZEOF(pcmk_children);
if(use_mcp) {
if(pcmk_children[crm_msg_crmd].conn || pcmk_children[crm_msg_stonith_ng].conn) {
time_t now = time(NULL);
if(now > next_log) {
next_log = now + 300;
ais_notice("Preventing Corosync shutdown. Please ensure Pacemaker is stopped first.");
}
return -1;
}
ais_notice("Unloading Pacemaker plugin");
return 0;
}
if(phase == 0) {
ais_notice("Shuting down Pacemaker");
phase = max;
}
wait_active = FALSE; /* stop the wait loop */
for (; phase > 0; phase--) {
/* dont stop anything with start_seq < 1 */
for (lpc = max - 1; lpc >= 0; lpc--) {
if(phase != pcmk_children[lpc].start_seq) {
continue;
}
if(pcmk_children[lpc].pid) {
pid_t pid = 0;
int status = 0;
time_t now = time(NULL);
if(pcmk_children[lpc].respawn) {
max_wait = 5; /* 5 * 30s = 2.5 minutes... plenty once the crmd is gone */
next_log = now + 30;
pcmk_children[lpc].respawn = FALSE;
stop_child(&(pcmk_children[lpc]), SIGTERM);
}
pid = wait4(pcmk_children[lpc].pid, &status, WNOHANG, NULL);
if(pid < 0) {
ais_perror("Call to wait4(%s/%d) failed - treating it as stopped",
pcmk_children[lpc].name, pcmk_children[lpc].pid);
} else if(pid == 0) {
if(now >= next_log) {
max_wait--;
next_log = now + 30;
ais_notice("Still waiting for %s (pid=%d, seq=%d) to terminate...",
pcmk_children[lpc].name, pcmk_children[lpc].pid, pcmk_children[lpc].start_seq);
if(max_wait <= 0 && phase < pcmk_children[crm_msg_crmd].start_seq) {
ais_err("Child %s taking too long to terminate, sending SIGKILL", pcmk_children[lpc].name);
stop_child(&(pcmk_children[lpc]), SIGKILL);
}
}
/* Return control to corosync */
return -1;
}
}
/* cleanup */
ais_notice("%s confirmed stopped", pcmk_children[lpc].name);
pcmk_children[lpc].async_conn = NULL;
pcmk_children[lpc].conn = NULL;
pcmk_children[lpc].pid = 0;
}
}
send_cluster_id();
ais_notice("Shutdown complete");
/* TODO: Add back the logsys flush call once its written */
return 0;
}
struct member_loop_data
{
char *string;
};
void member_vote_count_fn(gpointer key, gpointer value, gpointer user_data)
{
crm_node_t *node = value;
if (ais_str_eq(CRM_NODE_MEMBER, node->state)) {
plugin_has_votes += node->votes;
}
}
void member_loop_fn(gpointer key, gpointer value, gpointer user_data)
{
crm_node_t *node = value;
struct member_loop_data *data = user_data;
ais_debug_2("Dumping node %u", node->id);
data->string = append_member(data->string, node);
}
char *pcmk_generate_membership_data(void)
{
int size = 0;
struct member_loop_data data;
size = 256;
ais_malloc0(data.string, size);
/* Ensure the list of active processes is up-to-date */
update_member(local_nodeid, 0, 0, -1, get_process_list(), local_uname, CRM_NODE_MEMBER, NULL);
plugin_has_votes = 0;
g_hash_table_foreach(membership_list, member_vote_count_fn, NULL);
if(plugin_has_votes > plugin_expected_votes) {
update_expected_votes(plugin_has_votes);
}
snprintf(data.string, size,
"<nodes id=\""U64T"\" quorate=\"%s\" expected=\"%u\" actual=\"%u\">",
membership_seq, plugin_has_quorum()?"true":"false",
plugin_expected_votes, plugin_has_votes);
g_hash_table_foreach(membership_list, member_loop_fn, &data);
size = strlen(data.string);
data.string = realloc(data.string, size + 9) ;/* 9 = </nodes> + nul */
sprintf(data.string + size, "</nodes>");
return data.string;
}
void pcmk_nodes(void *conn, ais_void_ptr *msg)
{
char *data = pcmk_generate_membership_data();
void *async_conn = conn;
/* send the ACK before we send any other messages
* - but after we no longer need to access the message
*/
send_ipc_ack(conn); msg = NULL;
if(async_conn) {
send_client_msg(async_conn, crm_class_members, crm_msg_none, data);
}
ais_free(data);
}
void pcmk_remove_member(void *conn, ais_void_ptr *msg)
{
const AIS_Message *ais_msg = msg;
char *data = get_ais_data(ais_msg);
send_ipc_ack(conn); msg = NULL;
if(data != NULL) {
char *bcast = ais_concat("remove-peer", data, ':');
send_cluster_msg(crm_msg_ais, NULL, bcast);
ais_info("Sent: %s", bcast);
ais_free(bcast);
}
ais_free(data);
}
static void send_quorum_details(void *conn)
{
int size = 256;
char *data = NULL;
ais_malloc0(data, size);
snprintf(data, size, "<quorum id=\""U64T"\" quorate=\"%s\" expected=\"%u\" actual=\"%u\"/>",
membership_seq, plugin_has_quorum()?"true":"false",
plugin_expected_votes, plugin_has_votes);
send_client_msg(conn, crm_class_quorum, crm_msg_none, data);
ais_free(data);
}
void pcmk_quorum(void *conn, ais_void_ptr *msg)
{
char *dummy = NULL;
const AIS_Message *ais_msg = msg;
char *data = get_ais_data(ais_msg);
send_ipc_ack(conn); msg = NULL;
/* Make sure the current number of votes is accurate */
dummy = pcmk_generate_membership_data();
ais_free(dummy);
/* Calls without data just want the current quorum details */
if(data != NULL && strlen(data) > 0) {
int value = ais_get_int(data, NULL);
update_expected_votes(value);
}
send_quorum_details(conn);
ais_free(data);
}
void pcmk_notify(void *conn, ais_void_ptr *msg)
{
const AIS_Message *ais_msg = msg;
char *data = get_ais_data(ais_msg);
void *async_conn = conn;
int enable = 0;
int sender = ais_msg->sender.pid;
send_ipc_ack(conn); msg = NULL;
if(ais_str_eq("true", data)) {
enable = 1;
}
ais_info("%s node notifications for child %d (%p)",
enable?"Enabling":"Disabling", sender, async_conn);
if(enable) {
g_hash_table_replace(membership_notify_list, async_conn, async_conn);
} else {
g_hash_table_remove(membership_notify_list, async_conn);
}
ais_free(data);
}
void pcmk_nodeid(void *conn, ais_void_ptr *msg)
{
static int counter = 0;
struct crm_ais_nodeid_resp_s resp;
ais_debug_2("Sending local nodeid: %d to %p[%d]", local_nodeid, conn, counter);
resp.header.id = crm_class_nodeid;
resp.header.size = sizeof (struct crm_ais_nodeid_resp_s);
resp.header.error = CS_OK;
resp.id = local_nodeid;
resp.counter = counter++;
memset(resp.uname, 0, MAX_NAME);
memcpy(resp.uname, local_uname, local_uname_len);
memset(resp.cname, 0, MAX_NAME);
memcpy(resp.cname, local_cname, local_cname_len);
pcmk_api->ipc_response_send (conn, &resp, resp.header.size);
}
static gboolean
ghash_send_update(gpointer key, gpointer value, gpointer data)
{
if(send_client_msg(value, crm_class_members, crm_msg_none, data) != 0) {
/* remove it */
return TRUE;
}
return FALSE;
}
void send_member_notification(void)
{
char *update = pcmk_generate_membership_data();
ais_info("Sending membership update "U64T" to %d children",
membership_seq,
g_hash_table_size(membership_notify_list));
g_hash_table_foreach_remove(membership_notify_list, ghash_send_update, update);
ais_free(update);
}
gboolean check_message_sanity(const AIS_Message *msg, const char *data)
{
gboolean sane = TRUE;
gboolean repaired = FALSE;
int dest = msg->host.type;
int tmp_size = msg->header.size - sizeof(AIS_Message);
if(sane && msg->header.size == 0) {
ais_err("Message with no size");
sane = FALSE;
}
if(sane && msg->header.error != CS_OK) {
ais_err("Message header contains an error: %d", msg->header.error);
sane = FALSE;
}
AIS_CHECK(msg->header.size > sizeof(AIS_Message),
ais_err("Message %d size too small: %d < %zu",
msg->header.id, msg->header.size, sizeof(AIS_Message));
return FALSE);
if(sane && ais_data_len(msg) != tmp_size) {
ais_warn("Message payload size is incorrect: expected %d, got %d", ais_data_len(msg), tmp_size);
sane = TRUE;
}
if(sane && ais_data_len(msg) == 0) {
ais_err("Message with no payload");
sane = FALSE;
}
if(sane && data && msg->is_compressed == FALSE) {
int str_size = strlen(data) + 1;
if(ais_data_len(msg) != str_size) {
int lpc = 0;
ais_err("Message payload is corrupted: expected %d bytes, got %d",
ais_data_len(msg), str_size);
sane = FALSE;
for(lpc = (str_size - 10); lpc < msg->size; lpc++) {
if(lpc < 0) {
lpc = 0;
}
ais_debug_2("bad_data[%d]: %d / '%c'", lpc, data[lpc], data[lpc]);
}
}
}
if(sane == FALSE) {
AIS_CHECK(sane,
ais_err("Invalid message %d: (dest=%s:%s, from=%s:%s.%d, compressed=%d, size=%d, total=%d)",
msg->id, ais_dest(&(msg->host)), msg_type2text(dest),
ais_dest(&(msg->sender)), msg_type2text(msg->sender.type),
msg->sender.pid, msg->is_compressed, ais_data_len(msg),
msg->header.size));
} else if(repaired) {
ais_err("Repaired message %d: (dest=%s:%s, from=%s:%s.%d, compressed=%d, size=%d, total=%d)",
msg->id, ais_dest(&(msg->host)), msg_type2text(dest),
ais_dest(&(msg->sender)), msg_type2text(msg->sender.type),
msg->sender.pid, msg->is_compressed, ais_data_len(msg),
msg->header.size);
} else {
ais_debug_3("Verified message %d: (dest=%s:%s, from=%s:%s.%d, compressed=%d, size=%d, total=%d)",
msg->id, ais_dest(&(msg->host)), msg_type2text(dest),
ais_dest(&(msg->sender)), msg_type2text(msg->sender.type),
msg->sender.pid, msg->is_compressed, ais_data_len(msg),
msg->header.size);
}
return sane;
}
static int delivered_transient = 0;
static void deliver_transient_msg(gpointer key, gpointer value, gpointer user_data)
{
int pid = GPOINTER_TO_INT(value);
AIS_Message *mutable = user_data;
if(pid == mutable->host.type) {
int rc = send_client_ipc(key, mutable);
delivered_transient++;
ais_info("Sent message to %s.%d (rc=%d)",
ais_dest(&(mutable->host)), pid, rc);
if(rc != 0) {
ais_warn("Sending message to %s.%d failed (rc=%d)",
ais_dest(&(mutable->host)), pid, rc);
log_ais_message(LOG_DEBUG, mutable);
}
}
}
gboolean route_ais_message(const AIS_Message *msg, gboolean local_origin)
{
int rc = 0;
int dest = msg->host.type;
const char *reason = "unknown";
AIS_Message *mutable = ais_msg_copy(msg);
static int service_id = SERVICE_ID_MAKE(PCMK_SERVICE_ID, 0);
ais_debug_3("Msg[%d] (dest=%s:%s, from=%s:%s.%d, remote=%s, size=%d)",
mutable->id, ais_dest(&(mutable->host)), msg_type2text(dest),
ais_dest(&(mutable->sender)), msg_type2text(mutable->sender.type),
mutable->sender.pid, local_origin?"false":"true", ais_data_len((mutable)));
if(local_origin == FALSE) {
if(mutable->host.size == 0
|| ais_str_eq(local_uname, mutable->host.uname)) {
mutable->host.local = TRUE;
}
}
if(check_message_sanity(mutable, mutable->data) == FALSE) {
/* Dont send this message to anyone */
rc = 1;
goto bail;
}
if(mutable->host.local) {
void *conn = NULL;
const char *lookup = NULL;
if(dest == crm_msg_ais) {
process_ais_message(mutable);
goto bail;
} else if(dest == crm_msg_lrmd) {
/* lrmd messages are routed via the crm */
dest = crm_msg_crmd;
} else if(dest == crm_msg_te) {
/* te messages are routed via the crm */
dest = crm_msg_crmd;
} else if(dest >= SIZEOF(pcmk_children)) {
/* Transient client */
delivered_transient = 0;
g_hash_table_foreach(ipc_client_list, deliver_transient_msg, mutable);
if(delivered_transient) {
ais_debug_2("Sent message to %d transient clients: %d", delivered_transient, dest);
goto bail;
} else {
/* try the crmd */
ais_debug_2("Sending message to transient client %d via crmd", dest);
dest = crm_msg_crmd;
}
} else if(dest == 0) {
ais_err("Invalid destination: %d", dest);
log_ais_message(LOG_ERR, mutable);
log_printf(LOG_ERR, "%s", get_ais_data(mutable));
rc = 1;
goto bail;
}
lookup = msg_type2text(dest);
conn = pcmk_children[dest].async_conn;
/* the cluster fails in weird and wonderfully obscure ways when this is not true */
AIS_ASSERT(ais_str_eq(lookup, pcmk_children[dest].name));
if(mutable->header.id == service_id) {
mutable->header.id = 0; /* reset this back to zero for IPC messages */
} else if(mutable->header.id != 0) {
ais_err("reset header id back to zero from %d", mutable->header.id);
mutable->header.id = 0; /* reset this back to zero for IPC messages */
}
reason = "ipc delivery failed";
rc = send_client_ipc(conn, mutable);
} else if(local_origin) {
/* forward to other hosts */
ais_debug_3("Forwarding to cluster");
reason = "cluster delivery failed";
rc = send_cluster_msg_raw(mutable);
}
if(rc != 0) {
ais_warn("Sending message to %s.%s failed: %s (rc=%d)",
ais_dest(&(mutable->host)), msg_type2text(dest), reason, rc);
log_ais_message(LOG_DEBUG, mutable);
}
bail:
ais_free(mutable);
return rc==0?TRUE:FALSE;
}
int send_cluster_msg_raw(const AIS_Message *ais_msg)
{
int rc = 0;
struct iovec iovec;
static uint32_t msg_id = 0;
AIS_Message *mutable = ais_msg_copy(ais_msg);
AIS_ASSERT(local_nodeid != 0);
AIS_ASSERT(ais_msg->header.size == (sizeof(AIS_Message) + ais_data_len(ais_msg)));
if(mutable->id == 0) {
msg_id++;
AIS_CHECK(msg_id != 0 /* detect wrap-around */,
msg_id++; ais_err("Message ID wrapped around"));
mutable->id = msg_id;
}
mutable->header.error = CS_OK;
mutable->header.id = SERVICE_ID_MAKE(PCMK_SERVICE_ID, 0);
mutable->sender.id = local_nodeid;
mutable->sender.size = local_uname_len;
memset(mutable->sender.uname, 0, MAX_NAME);
memcpy(mutable->sender.uname, local_uname, mutable->sender.size);
iovec.iov_base = (char *)mutable;
iovec.iov_len = mutable->header.size;
ais_debug_3("Sending message (size=%u)", (unsigned int)iovec.iov_len);
rc = pcmk_api->totem_mcast(&iovec, 1, TOTEMPG_SAFE);
if(rc == 0 && mutable->is_compressed == FALSE) {
ais_debug_2("Message sent: %.80s", mutable->data);
}
AIS_CHECK(rc == 0, ais_err("Message not sent (%d): %.120s", rc, mutable->data));
ais_free(mutable);
return rc;
}
#define min(x,y) (x)<(y)?(x):(y)
void send_cluster_id(void)
{
int rc = 0;
int lpc = 0;
int len = 0;
time_t now = time(NULL);
struct iovec iovec;
struct crm_identify_msg_s *msg = NULL;
static time_t started = 0;
static uint64_t first_seq = 0;
AIS_ASSERT(local_nodeid != 0);
if(started == 0) {
started = now;
first_seq = membership_seq;
}
if(local_born_on == 0) {
if(started + 15 < now) {
ais_debug("Born-on set to: "U64T" (age)", first_seq);
local_born_on = first_seq;
} else if(have_reliable_membership_id) {
ais_debug("Born-on set to: "U64T" (peer)", membership_seq);
local_born_on = membership_seq;
} else {
ais_debug("Leaving born-on unset: "U64T, membership_seq);
}
}
ais_malloc0(msg, sizeof(struct crm_identify_msg_s));
msg->header.size = sizeof(struct crm_identify_msg_s);
msg->id = local_nodeid;
/* msg->header.error = CS_OK; */
msg->header.id = SERVICE_ID_MAKE(PCMK_SERVICE_ID, 1);
len = min(local_uname_len, MAX_NAME-1);
memset(msg->uname, 0, MAX_NAME);
memcpy(msg->uname, local_uname, len);
len = min(strlen(VERSION), MAX_NAME-1);
memset(msg->version, 0, MAX_NAME);
memcpy(msg->version, VERSION, len);
msg->votes = 1;
msg->pid = getpid();
msg->processes = get_process_list();
msg->born_on = local_born_on;
ais_debug("Local update: id=%u, born="U64T", seq="U64T"",
local_nodeid, local_born_on, membership_seq);
update_member(
local_nodeid, local_born_on, membership_seq, msg->votes, msg->processes, NULL, NULL, VERSION);
iovec.iov_base = (char *)msg;
iovec.iov_len = msg->header.size;
rc = pcmk_api->totem_mcast(&iovec, 1, TOTEMPG_SAFE);
AIS_CHECK(rc == 0, ais_err("Message not sent (%d)", rc));
ais_free(msg);
}
static gboolean
ghash_send_removal(gpointer key, gpointer value, gpointer data)
{
send_quorum_details(value);
if(send_client_msg(value, crm_class_rmpeer, crm_msg_none, data) != 0) {
/* remove it */
return TRUE;
}
return FALSE;
}
void ais_remove_peer(char *node_id)
{
uint32_t id = ais_get_int(node_id, NULL);
crm_node_t *node = g_hash_table_lookup(membership_list, GUINT_TO_POINTER(id));
if(node == NULL) {
ais_info("Peer %u is unknown", id);
} else if(ais_str_eq(CRM_NODE_MEMBER, node->state)) {
ais_warn("Peer %u/%s is still active", id, node->uname);
} else if(g_hash_table_remove(membership_list, GUINT_TO_POINTER(id))) {
plugin_expected_votes--;
ais_notice("Removed dead peer %u from the membership list", id);
ais_info("Sending removal of %u to %d children",
id, g_hash_table_size(membership_notify_list));
g_hash_table_foreach_remove(membership_notify_list, ghash_send_removal, node_id);
} else {
ais_warn("Peer %u/%s was not removed", id, node->uname);
}
}
gboolean process_ais_message(const AIS_Message *msg)
{
int len = ais_data_len(msg);
char *data = get_ais_data(msg);
do_ais_log(LOG_DEBUG,
"Msg[%d] (dest=%s:%s, from=%s:%s.%d, remote=%s, size=%d): %.90s",
msg->id, ais_dest(&(msg->host)), msg_type2text(msg->host.type),
ais_dest(&(msg->sender)), msg_type2text(msg->sender.type),
msg->sender.pid,
msg->sender.uname==local_uname?"false":"true",
ais_data_len(msg), data);
if(data && len > 12 && strncmp("remove-peer:", data, 12) == 0) {
char *node = data+12;
ais_remove_peer(node);
}
ais_free(data);
return TRUE;
}
static void member_dump_fn(gpointer key, gpointer value, gpointer user_data)
{
crm_node_t *node = value;
ais_info(" node id:%u, uname=%s state=%s processes=%.16x born="U64T" seen="U64T" addr=%s version=%s",
node->id, node->uname?node->uname:"-unknown-",
node->state, node->processes, node->born, node->last_seen,
node->addr?node->addr:"-unknown-", node->version?node->version:"-unknown-");
}
void pcmk_exec_dump(void)
{
/* Called after SIG_USR2 */
process_ais_conf();
ais_info("Local id: %u, uname: %s, born: "U64T, local_nodeid, local_uname, local_born_on);
ais_info("Membership id: "U64T", quorate: %s, expected: %u, actual: %u",
membership_seq, plugin_has_quorum()?"true":"false",
plugin_expected_votes, plugin_has_votes);
g_hash_table_foreach(membership_list, member_dump_fn, NULL);
}
diff --git a/mcp/pacemaker.c b/mcp/pacemaker.c
index d30951e847..3752c2b37a 100644
--- a/mcp/pacemaker.c
+++ b/mcp/pacemaker.c
@@ -1,767 +1,777 @@
/*
* Copyright (C) 2010 Andrew Beekhof <andrew@beekhof.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <crm_internal.h>
#include <pacemaker.h>
#include <pwd.h>
#include <crm/common/ipc.h>
#include <clplumbing/proctrack.h>
GMainLoop *mainloop = NULL;
GHashTable *client_list = NULL;
GHashTable *peers = NULL;
char ipc_name[] = "pcmk";
char *local_name = NULL;
uint32_t local_nodeid = 0;
crm_trigger_t *shutdown_trigger = NULL;
const char *pid_file = "/var/run/pacemaker.pid";
enum crm_proc_flag {
crm_proc_none = 0x00000001,
crm_proc_ais = 0x00000002,
crm_proc_lrmd = 0x00000010,
crm_proc_cib = 0x00000100,
crm_proc_crmd = 0x00000200,
crm_proc_attrd = 0x00001000,
crm_proc_stonithd = 0x00002000,
crm_proc_pe = 0x00010000,
crm_proc_te = 0x00020000,
crm_proc_mgmtd = 0x00040000,
crm_proc_stonith_ng = 0x00100000,
};
typedef struct pcmk_child_s {
int pid;
long flag;
int start_seq;
int respawn_count;
gboolean respawn;
const char *name;
const char *uid;
const char *command;
} pcmk_child_t;
/* Index into the array below */
#define pcmk_child_crmd 4
#define pcmk_child_mgmtd 8
static pcmk_child_t pcmk_children[] = {
{ 0, crm_proc_none, 0, 0, FALSE, "none", NULL, NULL },
{ 0, crm_proc_ais, 0, 0, FALSE, "ais", NULL, NULL },
{ 0, crm_proc_lrmd, 3, 0, TRUE, "lrmd", NULL, HB_DAEMON_DIR"/lrmd" },
{ 0, crm_proc_cib, 2, 0, TRUE, "cib", CRM_DAEMON_USER, CRM_DAEMON_DIR"/cib" },
{ 0, crm_proc_crmd, 6, 0, TRUE, "crmd", CRM_DAEMON_USER, CRM_DAEMON_DIR"/crmd" },
{ 0, crm_proc_attrd, 4, 0, TRUE, "attrd", CRM_DAEMON_USER, CRM_DAEMON_DIR"/attrd" },
{ 0, crm_proc_stonithd, 0, 0, TRUE, "stonithd", NULL, NULL },
{ 0, crm_proc_pe, 5, 0, TRUE, "pengine", CRM_DAEMON_USER, CRM_DAEMON_DIR"/pengine" },
{ 0, crm_proc_mgmtd, 0, 0, TRUE, "mgmtd", NULL, HB_DAEMON_DIR"/mgmtd" },
{ 0, crm_proc_stonith_ng, 1, 0, TRUE, "stonith-ng", NULL, CRM_DAEMON_DIR"/stonithd" },
};
static gboolean start_child(pcmk_child_t *child);
void enable_mgmtd(gboolean enable)
{
if(enable) {
pcmk_children[pcmk_child_mgmtd].start_seq = 7;
} else {
pcmk_children[pcmk_child_mgmtd].start_seq = 0;
}
}
static uint32_t get_process_list(void)
{
int lpc = 0;
uint32_t procs = crm_proc_ais;
for (lpc = 0; lpc < SIZEOF(pcmk_children); lpc++) {
if(pcmk_children[lpc].pid != 0) {
procs |= pcmk_children[lpc].flag;
}
}
return procs;
}
static int pcmk_user_lookup(const char *name, uid_t *uid, gid_t *gid)
{
int rc = -1;
char *buffer = NULL;
struct passwd pwd;
struct passwd *pwentry = NULL;
crm_malloc0(buffer, PW_BUFFER_LEN);
getpwnam_r(name, &pwd, buffer, PW_BUFFER_LEN, &pwentry);
if(pwentry) {
rc = 0;
if(uid) { *uid = pwentry->pw_uid; }
if(gid) { *gid = pwentry->pw_gid; }
crm_debug_2("Cluster user %s has uid=%d gid=%d",
name, pwentry->pw_uid, pwentry->pw_gid);
} else {
crm_err("Cluster user %s does not exist", name);
}
crm_free(buffer);
return rc;
}
static void
pcmk_child_exit(
ProcTrack* p, int status, int signo, int exitcode, int waslogged)
{
pcmk_child_t *child = p->privatedata;
p->privatedata = NULL;
if(signo) {
crm_notice("Child process %s terminated with signal %d (pid=%d, rc=%d)",
child->name, signo, child->pid, exitcode);
} else {
do_crm_log(exitcode==0?LOG_NOTICE:LOG_ERR,
"Child process %s exited (pid=%d, rc=%d)", child->name, child->pid, exitcode);
}
child->pid = 0;
if(exitcode == 100) {
crm_notice("Child process %s no longer wishes"
" to be respawned", child->name);
child->respawn = FALSE;
}
+ /* Broadcast the fact that one of our processes died ASAP
+ *
+ * Try to get some logging of the cause out first though
+ * because we're probably about to get fenced
+ *
+ * Potentially do this only if respawn_count > N
+ * to allow for local recovery
+ */
+ update_node_processes(local_nodeid, NULL, get_process_list());
+
child->respawn_count += 1;
if(child->respawn_count > MAX_RESPAWN) {
crm_err("Child respawn count exceeded by %s", child->name);
child->respawn = FALSE;
}
if(shutdown_trigger) {
mainloop_set_trigger(shutdown_trigger);
update_node_processes(local_nodeid, NULL, get_process_list());
} else if(child->respawn) {
crm_notice("Respawning failed child process: %s", child->name);
start_child(child);
}
}
static void
pcmkManagedChildRegistered(ProcTrack* p)
{
pcmk_child_t *child = p->privatedata;
child->pid = p->pid;
}
static const char *
pcmkManagedChildName(ProcTrack* p)
{
pcmk_child_t *child = p->privatedata;
return child->name;
}
static ProcTrack_ops pcmk_managed_child_ops = {
pcmk_child_exit,
pcmkManagedChildRegistered,
pcmkManagedChildName
};
static gboolean
stop_child(pcmk_child_t *child, int signal)
{
if(signal == 0) {
signal = SIGTERM;
}
if(child->command == NULL) {
crm_debug("Nothing to do for child \"%s\"", child->name);
return TRUE;
}
if (child->pid <= 0) {
crm_debug_2("Client %s not running", child->name);
return TRUE;
}
errno = 0;
if(kill(child->pid, signal) == 0) {
crm_notice("Stopping %s: Sent -%d to process %d", child->name, signal, child->pid);
} else {
crm_perror(LOG_ERR, "Stopping %s: Could not send -%d to process %d failed",
child->name, signal, child->pid);
}
return TRUE;
}
static char *opts_default[] = { NULL, NULL };
static char *opts_vgrind[] = { NULL, NULL, NULL, NULL, NULL };
static gboolean
start_child(pcmk_child_t *child)
{
int lpc = 0;
uid_t uid = 0;
struct rlimit oflimits;
gboolean use_valgrind = FALSE;
gboolean use_callgrind = FALSE;
const char *devnull = "/dev/null";
const char *env_valgrind = getenv("PCMK_valgrind_enabled");
const char *env_callgrind = getenv("PCMK_callgrind_enabled");
if(child->command == NULL) {
crm_info("Nothing to do for child \"%s\"", child->name);
return TRUE;
}
if(env_callgrind != NULL && crm_is_true(env_callgrind)) {
use_callgrind = TRUE;
use_valgrind = TRUE;
} else if(env_callgrind != NULL && strstr(env_callgrind, child->name)) {
use_callgrind = TRUE;
use_valgrind = TRUE;
} else if(env_valgrind != NULL && crm_is_true(env_valgrind)) {
use_valgrind = TRUE;
} else if(env_valgrind != NULL && strstr(env_valgrind, child->name)) {
use_valgrind = TRUE;
}
if(use_valgrind && strlen(VALGRIND_BIN) == 0) {
crm_warn("Cannot enable valgrind for %s:"
" The location of the valgrind binary is unknown", child->name);
use_valgrind = FALSE;
}
child->pid = fork();
CRM_ASSERT(child->pid != -1);
if(child->pid > 0) {
/* parent */
NewTrackedProc(child->pid, 0, PT_LOGNORMAL, child, &pcmk_managed_child_ops);
crm_info("Forked child %d for process %s%s", child->pid, child->name,
use_valgrind?" (valgrind enabled: "VALGRIND_BIN")":"");
update_node_processes(local_nodeid, NULL, get_process_list());
return TRUE;
} else {
/* Start a new session */
(void)setsid();
/* Setup the two alternate arg arrarys */
opts_vgrind[0] = crm_strdup(VALGRIND_BIN);
if(use_callgrind) {
opts_vgrind[1] = crm_strdup("--tool=callgrind");
opts_vgrind[2] = crm_strdup("--callgrind-out-file="CRM_STATE_DIR"/callgrind.out.%p");
opts_vgrind[3] = crm_strdup(child->command);
opts_vgrind[4] = NULL;
} else {
opts_vgrind[1] = crm_strdup(child->command);
opts_vgrind[2] = NULL;
opts_vgrind[3] = NULL;
opts_vgrind[4] = NULL;
}
opts_default[0] = crm_strdup(child->command);;
#if 0
/* Dont set the group for now - it prevents connection to the cluster */
if(gid && setgid(gid) < 0) {
crm_perror("Could not set group to %d", gid);
}
#endif
if(child->uid) {
if(pcmk_user_lookup(child->uid, &uid, NULL) < 0) {
crm_err("Invalid uid (%s) specified for %s",
child->uid, child->name);
return TRUE;
}
}
if(uid && setuid(uid) < 0) {
crm_perror(LOG_ERR, "Could not set user to %d (%s)", uid, child->uid);
}
/* Close all open file descriptors */
getrlimit(RLIMIT_NOFILE, &oflimits);
for (lpc = 0; lpc < oflimits.rlim_cur; lpc++) {
close(lpc);
}
(void)open(devnull, O_RDONLY); /* Stdin: fd 0 */
(void)open(devnull, O_WRONLY); /* Stdout: fd 1 */
(void)open(devnull, O_WRONLY); /* Stderr: fd 2 */
if(use_valgrind) {
(void)execvp(VALGRIND_BIN, opts_vgrind);
} else {
(void)execvp(child->command, opts_default);
}
crm_perror(LOG_ERR, "FATAL: Cannot exec %s", child->command);
exit(100);
}
return TRUE; /* never reached */
}
static gboolean
escalate_shutdown(gpointer data)
{
pcmk_child_t *child = data;
if(child->pid) {
/* Use SIGSEGV instead of SIGKILL to create a core so we can see what it was up to */
crm_err("Child %s not terminating in a timely manner, forcing", child->name);
stop_child(child, SIGSEGV);
}
return FALSE;
}
static gboolean
pcmk_shutdown_worker(gpointer user_data)
{
static int phase = 0;
static time_t next_log = 0;
static int max = SIZEOF(pcmk_children);
int lpc = 0;
if(phase == 0) {
crm_notice("Shuting down Pacemaker");
phase = max;
}
for (; phase > 0; phase--) {
/* dont stop anything with start_seq < 1 */
for (lpc = max - 1; lpc >= 0; lpc--) {
pcmk_child_t *child = &(pcmk_children[lpc]);
if(phase != child->start_seq) {
continue;
}
if(child->pid) {
time_t now = time(NULL);
if(child->respawn) {
next_log = now + 30;
child->respawn = FALSE;
stop_child(child, SIGTERM);
if(phase < pcmk_children[pcmk_child_crmd].start_seq) {
g_timeout_add(180000/* 3m */, escalate_shutdown, child);
}
} else if(now >= next_log) {
next_log = now + 30;
crm_notice("Still waiting for %s (pid=%d, seq=%d) to terminate...",
child->name, child->pid, child->start_seq);
}
return TRUE;
}
/* cleanup */
crm_notice("%s confirmed stopped", child->name);
child->pid = 0;
}
}
/* send_cluster_id(); */
crm_notice("Shutdown complete");
g_main_loop_quit(mainloop);
return TRUE;
}
static void
pcmk_shutdown(int nsig)
{
shutdown_trigger = mainloop_add_trigger(G_PRIORITY_HIGH, pcmk_shutdown_worker, NULL);
mainloop_set_trigger(shutdown_trigger);
}
static void build_path(const char *path_c, mode_t mode)
{
int offset = 1, len = 0;
char *path = crm_strdup(path_c);
CRM_CHECK(path != NULL, return);
for(len = strlen(path); offset < len; offset++) {
if(path[offset] == '/') {
path[offset] = 0;
if(mkdir(path, mode) < 0 && errno != EEXIST) {
crm_perror(LOG_ERR, "Could not create directory '%s'", path);
break;
}
path[offset] = '/';
}
}
if(mkdir(path, mode) < 0 && errno != EEXIST) {
crm_perror(LOG_ERR, "Could not create directory '%s'", path);
}
crm_free(path);
}
static void
pcmk_server_destroy(gpointer user_data)
{
crm_info("Server destroyed");
return;
}
static void
pcmk_client_destroy(gpointer user_data)
{
crm_debug("Client %p disconnected", user_data);
g_hash_table_remove(client_list, user_data);
return;
}
static gboolean
pcmk_client_msg(IPC_Channel *client, gpointer user_data)
{
xmlNode *msg = NULL;
gboolean stay_connected = TRUE;
while(IPC_ISRCONN(client)) {
if(client->ops->is_message_pending(client) == 0) {
break;
}
msg = xmlfromIPC(client, MAX_IPC_DELAY);
free_xml(msg);
if(client->ch_status != IPC_CONNECT) {
break;
}
}
if (client->ch_status != IPC_CONNECT) {
stay_connected = FALSE;
}
return stay_connected;
}
static gboolean
pcmk_client_connect(IPC_Channel *ch, gpointer user_data)
{
if (ch == NULL) {
crm_err("Channel was invalid");
} else if (ch->ch_status == IPC_DISCONNECT) {
crm_err("Channel was disconnected");
} else {
ch->ops->set_recv_qlen(ch, 1024);
ch->ops->set_send_qlen(ch, 1024);
g_hash_table_insert(client_list, ch, user_data);
crm_debug("Channel %p connected: %d children", ch, g_hash_table_size(client_list));
update_process_clients();
G_main_add_IPC_Channel(
G_PRIORITY_LOW, ch, FALSE, pcmk_client_msg, ch, pcmk_client_destroy);
}
return TRUE;
}
static gboolean
ghash_send_proc_details(gpointer key, gpointer value, gpointer data)
{
if(send_ipc_message(key, data) == FALSE) {
/* remove it */
return TRUE;
}
return FALSE;
}
static void peer_loop_fn(gpointer key, gpointer value, gpointer user_data)
{
pcmk_peer_t *node = value;
xmlNode *update = user_data;
xmlNode *xml = create_xml_node(update, "node");
crm_xml_add_int(xml, "id", node->id);
crm_xml_add(xml, "uname", node->uname);
crm_xml_add_int(xml, "processes", node->processes);
}
void update_process_clients(void)
{
xmlNode *update = create_xml_node(NULL, "nodes");
crm_debug_2("Sending process list to %d children", g_hash_table_size(client_list));
g_hash_table_foreach(peers, peer_loop_fn, update);
g_hash_table_foreach_remove(client_list, ghash_send_proc_details, update);
free_xml(update);
}
void update_process_peers(void)
{
char buffer[1024];
struct iovec iov;
int rc = 0;
memset(buffer, 0, SIZEOF(buffer));
if(local_name) {
rc = snprintf(buffer, SIZEOF(buffer) - 1, "<node uname=\"%s\" proclist=\"%u\"/>", local_name, get_process_list());
} else {
rc = snprintf(buffer, SIZEOF(buffer) - 1, "<node proclist=\"%u\"/>", get_process_list());
}
iov.iov_base = buffer;
iov.iov_len = rc + 1;
send_cpg_message(&iov);
}
gboolean update_node_processes(uint32_t id, const char *uname, uint32_t procs)
{
gboolean changed = FALSE;
pcmk_peer_t *node = g_hash_table_lookup(peers, GUINT_TO_POINTER(id));
if(node == NULL) {
changed = TRUE;
crm_malloc0(node, sizeof(pcmk_peer_t));
node->id = id;
g_hash_table_insert(peers, GUINT_TO_POINTER(id), node);
node = g_hash_table_lookup(peers, GUINT_TO_POINTER(id));
CRM_ASSERT(node != NULL);
}
if(uname != NULL) {
if(node->uname == NULL || safe_str_eq(node->uname, uname) == FALSE) {
crm_info("%p Node %u now known as %s (was: %s)",
node, id, uname, node->uname);
crm_free(node->uname);
node->uname = crm_strdup(uname);
changed = TRUE;
}
}
if(procs != 0 && procs != node->processes) {
crm_info("Node %s now has process list: %.32x (was %.32x)",
node->uname, procs, node->processes);
node->processes = procs;
changed = TRUE;
}
if(changed && id == local_nodeid) {
update_process_clients();
update_process_peers();
}
return changed;
}
static struct crm_option long_options[] = {
/* Top-level Options */
{"help", 0, 0, '?', "\tThis text"},
{"version", 0, 0, '$', "\tVersion information" },
{"verbose", 0, 0, 'V', "\tIncrease debug output"},
{"features", 0, 0, 'F', "\tDisplay the full version and list of features Pacemaker was built with"},
{"-spacer-", 1, 0, '-', "\nAdditional Options:"},
{"foreground", 0, 0, 'f', "\tRun in the foreground instead of as a daemon"},
{"pid-file", 1, 0, 'p', "\t(Advanced) Daemon pid file location"},
{NULL, 0, 0, 0}
};
int
main(int argc, char **argv)
{
int rc;
int flag;
int argerr = 0;
int option_index = 0;
gboolean daemonize = TRUE;
int start_seq = 1, lpc = 0;
static int max = SIZEOF(pcmk_children);
uid_t pcmk_uid = 0;
gid_t pcmk_gid = 0;
struct rlimit cores;
/* =::=::= Default Environment =::=::= */
setenv("HA_mcp", "true", 1);
setenv("HA_COMPRESSION", "bz2", 1);
setenv("HA_cluster_type", "corosync",1);
setenv("HA_debug", "0", 1);
setenv("HA_logfacility", "daemon", 1);
setenv("HA_LOGFACILITY", "daemon", 1);
setenv("HA_use_logd", "off", 1);
crm_log_init(NULL, LOG_INFO, TRUE, FALSE, argc, argv);
crm_set_options("V?$fp:F", "mode [options]", long_options,
"Start/Stop Pacemaker\n");
#ifndef ON_DARWIN
/* prevent zombies */
signal(SIGCLD, SIG_IGN);
#endif
while (1) {
flag = crm_get_option(argc, argv, &option_index);
if (flag == -1)
break;
switch(flag) {
case 'V':
cl_log_enable_stderr(TRUE);
alter_debug(DEBUG_INC);
break;
case 'f':
daemonize = FALSE;
break;
case 'p':
pid_file = optarg;
break;
case '$':
case '?':
crm_help(flag, LSB_EXIT_OK);
break;
case 'F':
printf("Pacemaker %s (Build: %s)\n Supporting: %s\n", VERSION, BUILD_VERSION, CRM_FEATURES);
exit (0);
default:
printf("Argument code 0%o (%c) is not (?yet?) supported\n", flag, flag);
++argerr;
break;
}
}
if (optind < argc) {
printf("non-option ARGV-elements: ");
while (optind < argc)
printf("%s ", argv[optind++]);
printf("\n");
}
if (argerr) {
crm_help('?', LSB_EXIT_GENERIC);
}
if(read_config() == FALSE) {
return 1;
}
if(daemonize) {
cl_log_enable_stderr(FALSE);
crm_make_daemon(crm_system_name, TRUE, pid_file);
/* Only Re-init if we're running daemonized */
crm_log_init_quiet(NULL, LOG_INFO, TRUE, FALSE, argc, argv);
}
crm_info("Starting Pacemaker %s (Build: %s): %s\n", VERSION, BUILD_VERSION, CRM_FEATURES);
mainloop = g_main_new(FALSE);
rc = getrlimit(RLIMIT_CORE, &cores);
if(rc < 0) {
crm_perror(LOG_ERR, "Cannot determine current maximum core size.");
} else {
if (cores.rlim_max == 0 && geteuid() == 0) {
cores.rlim_max = RLIM_INFINITY;
} else {
crm_info("Maximum core file size is: %lu", (unsigned long)cores.rlim_max);
}
cores.rlim_cur = cores.rlim_max;
rc = setrlimit(RLIMIT_CORE, &cores);
if(rc < 0) {
crm_perror(LOG_ERR,
"Core file generation will remain disabled."
" Core files are an important diagnositic tool,"
" please consider enabling them by default.");
}
#if 0
/* system() is not thread-safe, can't call from here
* Actually, its a pretty hacky way to try and achieve this anyway
*/
if(system("echo 1 > /proc/sys/kernel/core_uses_pid") != 0) {
crm_perror(LOG_ERR, "Could not enable /proc/sys/kernel/core_uses_pid");
}
#endif
}
if(pcmk_user_lookup(CRM_DAEMON_USER, &pcmk_uid, &pcmk_gid) < 0) {
crm_err("Cluster user %s does not exist, aborting Pacemaker startup", CRM_DAEMON_USER);
return TRUE;
}
mkdir(CRM_STATE_DIR, 0750);
chown(CRM_STATE_DIR, pcmk_uid, pcmk_gid);
/* Used by stonithd */
build_path(HA_STATE_DIR"/heartbeat", 0755);
/* Used by RAs - Leave owned by root */
build_path(CRM_RSCTMP_DIR, 0755);
client_list = g_hash_table_new(g_direct_hash, g_direct_equal);
peers = g_hash_table_new(g_direct_hash, g_direct_equal);
if(init_server_ipc_comms(ipc_name, pcmk_client_connect, pcmk_server_destroy)) {
crm_err("Couldn't start IPC server");
return 1;
}
if(cluster_connect_cfg(&local_nodeid) == FALSE) {
return 1;
}
if(cluster_connect_cpg() == FALSE) {
return 1;
}
local_name = get_local_node_name();
update_node_processes(local_nodeid, local_name, get_process_list());
mainloop_add_signal(SIGTERM, pcmk_shutdown);
mainloop_add_signal(SIGINT, pcmk_shutdown);
set_sigchld_proctrack(G_PRIORITY_HIGH, DEFAULT_MAXDISPATCHTIME);
for (start_seq = 1; start_seq < max; start_seq++) {
/* dont start anything with start_seq < 1 */
for (lpc = 0; lpc < max; lpc++) {
if(start_seq == pcmk_children[lpc].start_seq) {
start_child(&(pcmk_children[lpc]));
}
}
}
crm_info("Starting mainloop");
g_main_run(mainloop);
g_main_destroy(mainloop);
cluster_disconnect_cpg();
cluster_disconnect_cfg();
crm_info("Exiting %s", crm_system_name);
return 0;
}