diff --git a/lib/cluster/corosync.c b/lib/cluster/corosync.c
index 523df23b28..176a33a14a 100644
--- a/lib/cluster/corosync.c
+++ b/lib/cluster/corosync.c
@@ -1,1083 +1,1027 @@
/*
* 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 USA
*/
#include <crm_internal.h>
#include <bzlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <crm/common/ipc.h>
#include <crm/cluster/internal.h>
#include <crm/common/mainloop.h>
#include <sys/utsname.h>
#include <qb/qbipcc.h>
#include <qb/qbutil.h>
#include <corosync/corodefs.h>
#include <corosync/corotypes.h>
#include <corosync/hdb.h>
#include <corosync/cpg.h>
#include <corosync/cfg.h>
#include <corosync/cmap.h>
#include <corosync/quorum.h>
#include <crm/msg_xml.h>
cpg_handle_t pcmk_cpg_handle = 0;
struct cpg_name pcmk_cpg_group = {
.length = 0,
.value[0] = 0,
};
quorum_handle_t pcmk_quorum_handle = 0;
gboolean(*quorum_app_callback) (unsigned long long seq, gboolean quorate) = NULL;
static char *pcmk_uname = NULL;
static int pcmk_uname_len = 0;
static uint32_t pcmk_nodeid = 0;
#define cs_repeat(counter, max, code) do { \
code; \
if(rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) { \
counter++; \
crm_debug("Retrying operation after %ds", counter); \
sleep(counter); \
} else { \
break; \
} \
} while(counter < max)
/*
* CFG functionality stolen from node_name() in corosync-quorumtool.c
* This resolves the first address assigned to a node and returns the name or IP address.
*/
char *corosync_node_name(uint64_t /*cmap_handle_t*/ cmap_handle, uint32_t nodeid)
{
int lpc = 0;
int rc = CS_OK;
int retries = 0;
char *name = NULL;
cmap_handle_t local_handle = 0;
- corosync_cfg_handle_t cfg_handle = 0;
- static corosync_cfg_callbacks_t cfg_callbacks = {};
/* nodeid == 0 == CMAN_NODEID_US */
if(nodeid == 0 && pcmk_nodeid) {
nodeid = pcmk_nodeid;
} else if(nodeid == 0) {
/* Look it up */
int rc = -1;
int retries = 0;
cpg_handle_t handle = 0;
cpg_callbacks_t cb = {};
cs_repeat(retries, 5, rc = cpg_initialize(&handle, &cb));
if (rc == CS_OK) {
retries = 0;
cs_repeat(retries, 5, rc = cpg_local_get(handle, &pcmk_nodeid));
}
if (rc != CS_OK) {
crm_err("Could not get local node id from the CPG API: %d", rc);
}
cpg_finalize(handle);
}
if(cmap_handle == 0 && local_handle == 0) {
retries = 0;
crm_trace("Initializing CMAP connection");
do {
rc = cmap_initialize(&local_handle);
if(rc != CS_OK) {
retries++;
crm_debug("API connection setup failed: %s. Retrying in %ds", cs_strerror(rc), retries);
sleep(retries);
}
} while(retries < 5 && rc != CS_OK);
if (rc != CS_OK) {
crm_warn("Could not connect to Cluster Configuration Database API, error %s", cs_strerror(rc));
local_handle = 0;
}
}
if(cmap_handle == 0) {
cmap_handle = local_handle;
}
while(name == NULL && cmap_handle != 0) {
uint32_t id = 0;
char *key = NULL;
key = g_strdup_printf("nodelist.node.%d.nodeid", lpc);
rc = cmap_get_uint32(cmap_handle, key, &id);
crm_trace("Checking %u vs %u from %s", nodeid, id, key);
g_free(key);
if(rc != CS_OK) {
break;
}
if(nodeid == id) {
crm_trace("Searching for node name for %u in nodelist.node.%d %s", nodeid, lpc, name);
if(name == NULL) {
key = g_strdup_printf("nodelist.node.%d.ring0_addr", lpc);
rc = cmap_get_string(cmap_handle, key, &name);
crm_trace("%s = %s", key, name);
if(node_name_is_valid(key, name) == FALSE) {
free(name); name = NULL;
}
g_free(key);
}
if(name == NULL) {
key = g_strdup_printf("nodelist.node.%d.name", lpc);
rc = cmap_get_string(cmap_handle, key, &name);
crm_trace("%s = %s %d", key, name, rc);
g_free(key);
}
break;
}
lpc++;
}
if(name == NULL) {
- retries = 0;
- crm_trace("Initializing CFG connection");
- do {
- rc = corosync_cfg_initialize(&cfg_handle, &cfg_callbacks);
- if(rc != CS_OK) {
- retries++;
- crm_debug("API connection setup failed: %s. Retrying in %ds", cs_strerror(rc), retries);
- sleep(retries);
- }
-
- } while(retries < 5 && rc != CS_OK);
-
- if (rc != CS_OK) {
- crm_warn("Could not connect to the Corosync CFG API, error %d", cs_strerror(rc));
- cfg_handle = 0;
- }
- }
-
- if(name == NULL && cfg_handle != 0) {
- int numaddrs;
- char buf[INET6_ADDRSTRLEN];
-
- socklen_t addrlen;
- struct sockaddr_storage *ss;
- corosync_cfg_node_address_t addrs[INTERFACE_MAX];
-
- rc = corosync_cfg_get_node_addrs(cfg_handle, nodeid, INTERFACE_MAX, &numaddrs, addrs);
- if (rc == CS_OK) {
- ss = (struct sockaddr_storage *)addrs[0].address;
- if (ss->ss_family == AF_INET6) {
- addrlen = sizeof(struct sockaddr_in6);
- } else {
- addrlen = sizeof(struct sockaddr_in);
- }
-
- if (getnameinfo((struct sockaddr *)addrs[0].address, addrlen, buf, sizeof(buf), NULL, 0, 0) == 0) {
- crm_notice("Inferred node name '%s' for nodeid %u from DNS", buf, nodeid);
-
- if(node_name_is_valid("DNS", buf)) {
- name = strdup(buf);
- strip_domain(name);
- }
- }
- } else {
- crm_debug("Unable to get node address for nodeid %u: %s", nodeid, cs_strerror(rc));
- }
- corosync_cfg_finalize(cfg_handle);
- }
-
- if(local_handle) {
- cmap_finalize(local_handle);
- }
-
- if(name == NULL) {
- crm_err("Unable to get node name for nodeid %u", nodeid);
+ crm_notice("Unable to get node name for nodeid %u", nodeid);
}
return name;
}
enum crm_ais_msg_types
text2msg_type(const char *text)
{
int type = crm_msg_none;
CRM_CHECK(text != NULL, return type);
if (safe_str_eq(text, "ais")) {
type = crm_msg_ais;
} else if (safe_str_eq(text, "crm_plugin")) {
type = crm_msg_ais;
} else if (safe_str_eq(text, CRM_SYSTEM_CIB)) {
type = crm_msg_cib;
} else if (safe_str_eq(text, CRM_SYSTEM_CRMD)) {
type = crm_msg_crmd;
} else if (safe_str_eq(text, CRM_SYSTEM_DC)) {
type = crm_msg_crmd;
} else if (safe_str_eq(text, CRM_SYSTEM_TENGINE)) {
type = crm_msg_te;
} else if (safe_str_eq(text, CRM_SYSTEM_PENGINE)) {
type = crm_msg_pe;
} else if (safe_str_eq(text, CRM_SYSTEM_LRMD)) {
type = crm_msg_lrmd;
} else if (safe_str_eq(text, CRM_SYSTEM_STONITHD)) {
type = crm_msg_stonithd;
} else if (safe_str_eq(text, "stonith-ng")) {
type = crm_msg_stonith_ng;
} else if (safe_str_eq(text, "attrd")) {
type = crm_msg_attrd;
} else {
/* This will normally be a transient client rather than
* a cluster daemon. Set the type to the pid of the client
*/
int scan_rc = sscanf(text, "%d", &type);
if (scan_rc != 1) {
/* Ensure its sane */
type = crm_msg_none;
}
}
return type;
}
static char *ais_cluster_name = NULL;
gboolean
crm_get_cluster_name(char **cname)
{
CRM_CHECK(cname != NULL, return FALSE);
if (ais_cluster_name) {
*cname = strdup(ais_cluster_name);
return TRUE;
}
return FALSE;
}
gboolean
send_ais_text(int class, const char *data,
gboolean local, crm_node_t *node, enum crm_ais_msg_types dest)
{
static int msg_id = 0;
static int local_pid = 0;
int retries = 0;
int rc = CS_OK;
int buf_len = sizeof(cs_ipc_header_response_t);
char *buf = NULL;
struct iovec iov;
const char *transport = "pcmk";
AIS_Message *ais_msg = NULL;
enum crm_ais_msg_types sender = text2msg_type(crm_system_name);
/* There are only 6 handlers registered to crm_lib_service in plugin.c */
CRM_CHECK(class < 6, crm_err("Invalid message class: %d", class); return FALSE);
if (data == NULL) {
data = "";
}
if (local_pid == 0) {
local_pid = getpid();
}
if (sender == crm_msg_none) {
sender = local_pid;
}
ais_msg = calloc(1, sizeof(AIS_Message));
ais_msg->id = msg_id++;
ais_msg->header.id = class;
ais_msg->header.error = CS_OK;
ais_msg->host.type = dest;
ais_msg->host.local = local;
if (node) {
if (node->uname) {
ais_msg->host.size = strlen(node->uname);
memset(ais_msg->host.uname, 0, MAX_NAME);
memcpy(ais_msg->host.uname, node->uname, ais_msg->host.size);
}
ais_msg->host.id = node->id;
}
ais_msg->sender.id = 0;
ais_msg->sender.type = sender;
ais_msg->sender.pid = local_pid;
ais_msg->sender.size = pcmk_uname_len;
memset(ais_msg->sender.uname, 0, MAX_NAME);
memcpy(ais_msg->sender.uname, pcmk_uname, ais_msg->sender.size);
ais_msg->size = 1 + strlen(data);
if (ais_msg->size < CRM_BZ2_THRESHOLD) {
failback:
ais_msg = realloc(ais_msg, sizeof(AIS_Message) + ais_msg->size);
memcpy(ais_msg->data, data, ais_msg->size);
} else {
char *compressed = NULL;
char *uncompressed = strdup(data);
unsigned int len = (ais_msg->size * 1.1) + 600; /* recomended size */
crm_trace("Compressing message payload");
/* coverity[returned_null] Ignore */
compressed = malloc( len);
rc = BZ2_bzBuffToBuffCompress(compressed, &len, uncompressed, ais_msg->size, CRM_BZ2_BLOCKS,
0, CRM_BZ2_WORK);
free(uncompressed);
if (rc != BZ_OK) {
crm_err("Compression failed: %d", rc);
free(compressed);
goto failback;
}
ais_msg = realloc(ais_msg, sizeof(AIS_Message) + len + 1);
memcpy(ais_msg->data, compressed, len);
ais_msg->data[len] = 0;
free(compressed);
ais_msg->is_compressed = TRUE;
ais_msg->compressed_size = len;
crm_trace("Compression details: %d -> %d", ais_msg->size, ais_data_len(ais_msg));
}
ais_msg->header.size = sizeof(AIS_Message) + ais_data_len(ais_msg);
crm_trace("Sending%s message %d to %s.%s (data=%d, total=%d)",
ais_msg->is_compressed ? " compressed" : "",
ais_msg->id, ais_dest(&(ais_msg->host)), msg_type2text(dest),
ais_data_len(ais_msg), ais_msg->header.size);
iov.iov_base = ais_msg;
iov.iov_len = ais_msg->header.size;
buf = realloc(buf, buf_len);
do {
if (rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) {
retries++;
crm_info("Peer overloaded or membership in flux:"
" Re-sending message (Attempt %d of 20)", retries);
sleep(retries); /* Proportional back off */
}
errno = 0;
transport = "cpg";
CRM_CHECK(dest != crm_msg_ais, rc = CS_ERR_MESSAGE_ERROR; goto bail);
rc = cpg_mcast_joined(pcmk_cpg_handle, CPG_TYPE_AGREED, &iov, 1);
if (rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) {
cpg_flow_control_state_t fc_state = CPG_FLOW_CONTROL_DISABLED;
int rc2 = cpg_flow_control_state_get(pcmk_cpg_handle, &fc_state);
if (rc2 == CS_OK && fc_state == CPG_FLOW_CONTROL_ENABLED) {
crm_warn("Connection overloaded, cannot send messages");
goto bail;
} else if (rc2 != CS_OK) {
crm_warn("Could not determin the connection state: %s (%d)",
ais_error2text(rc2), rc2);
goto bail;
}
}
} while ((rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) && retries < 20);
bail:
if (rc != CS_OK) {
crm_perror(LOG_ERR, "Sending message %d via %s: FAILED (rc=%d): %s",
ais_msg->id, transport, rc, ais_error2text(rc));
} else {
crm_trace("Message %d: sent", ais_msg->id);
}
free(buf);
free(ais_msg);
return (rc == CS_OK);
}
gboolean
send_ais_message(xmlNode * msg, gboolean local, crm_node_t *node, enum crm_ais_msg_types dest)
{
gboolean rc = TRUE;
char *data = dump_xml_unformatted(msg);
rc = send_ais_text(crm_class_cluster, data, local, node, dest);
free(data);
return rc;
}
void
terminate_cs_connection(void)
{
crm_notice("Disconnecting from Corosync");
if(pcmk_cpg_handle) {
crm_trace("Disconnecting CPG");
cpg_leave(pcmk_cpg_handle, &pcmk_cpg_group);
cpg_finalize(pcmk_cpg_handle);
pcmk_cpg_handle = 0;
} else {
crm_info("No CPG connection");
}
if(pcmk_quorum_handle) {
crm_trace("Disconnecting quorum");
quorum_finalize(pcmk_quorum_handle);
pcmk_quorum_handle = 0;
} else {
crm_info("No Quorum connection");
}
}
int ais_membership_timer = 0;
gboolean ais_membership_force = FALSE;
static gboolean
ais_dispatch_message(AIS_Message * msg, gboolean(*dispatch) (int kind, const char *from, const char *data))
{
char *data = NULL;
char *uncompressed = NULL;
xmlNode *xml = NULL;
CRM_ASSERT(msg != NULL);
crm_trace("Got new%s message (size=%d, %d, %d)",
msg->is_compressed ? " compressed" : "",
ais_data_len(msg), msg->size, msg->compressed_size);
data = msg->data;
if (msg->is_compressed && msg->size > 0) {
int rc = BZ_OK;
unsigned int new_size = msg->size + 1;
if (check_message_sanity(msg, NULL) == FALSE) {
goto badmsg;
}
crm_trace("Decompressing message data");
uncompressed = calloc(1, new_size);
rc = BZ2_bzBuffToBuffDecompress(uncompressed, &new_size, data, msg->compressed_size, 1, 0);
if (rc != BZ_OK) {
crm_err("Decompression failed: %d", rc);
goto badmsg;
}
CRM_ASSERT(rc == BZ_OK);
CRM_ASSERT(new_size == msg->size);
data = uncompressed;
} else if (check_message_sanity(msg, data) == FALSE) {
goto badmsg;
} else if (safe_str_eq("identify", data)) {
int pid = getpid();
char *pid_s = crm_itoa(pid);
send_ais_text(crm_class_cluster, pid_s, TRUE, NULL, crm_msg_ais);
free(pid_s);
goto done;
}
if (msg->header.id != crm_class_members) {
/* Is this even needed anymore? */
crm_get_peer(msg->sender.id, msg->sender.uname);
}
if (msg->header.id == crm_class_rmpeer) {
uint32_t id = crm_int_helper(data, NULL);
crm_info("Removing peer %s/%u", data, id);
reap_crm_member(id, NULL);
goto done;
}
crm_trace("Payload: %s", data);
if (dispatch != NULL) {
dispatch(msg->header.id, msg->sender.uname, data);
}
done:
free(uncompressed);
free_xml(xml);
return TRUE;
badmsg:
crm_err("Invalid message (id=%d, dest=%s:%s, from=%s:%s.%d):"
" min=%d, total=%d, size=%d, bz2_size=%d",
msg->id, ais_dest(&(msg->host)), msg_type2text(msg->host.type),
ais_dest(&(msg->sender)), msg_type2text(msg->sender.type),
msg->sender.pid, (int)sizeof(AIS_Message),
msg->header.size, msg->size, msg->compressed_size);
goto done;
}
gboolean(*pcmk_cpg_dispatch_fn) (int kind, const char *from, const char *data) = NULL;
static int
pcmk_cpg_dispatch(gpointer user_data)
{
int rc = 0;
pcmk_cpg_dispatch_fn = user_data;
rc = cpg_dispatch(pcmk_cpg_handle, CS_DISPATCH_ALL);
if (rc != CS_OK) {
crm_err("Connection to the CPG API failed: %d", rc);
return -1;
}
return 0;
}
static void
pcmk_cpg_deliver(cpg_handle_t handle,
const struct cpg_name *groupName,
uint32_t nodeid, uint32_t pid, void *msg, size_t msg_len)
{
AIS_Message *ais_msg = (AIS_Message *) msg;
if (ais_msg->sender.id > 0 && ais_msg->sender.id != nodeid) {
crm_err("Nodeid mismatch from %d.%d: claimed nodeid=%u", nodeid, pid, ais_msg->sender.id);
return;
} else if (ais_msg->host.size != 0 && safe_str_neq(ais_msg->host.uname, pcmk_uname)) {
/* Not for us */
return;
} else if (ais_msg->host.id != 0 && (pcmk_nodeid != ais_msg->host.id)) {
/* Not for us */
return;
}
ais_msg->sender.id = nodeid;
if (ais_msg->sender.size == 0) {
crm_node_t *peer = crm_get_peer(nodeid, NULL);
if (peer == NULL) {
crm_err("Peer with nodeid=%u is unknown", nodeid);
} else if (peer->uname == NULL) {
crm_err("No uname for peer with nodeid=%u", nodeid);
} else {
crm_notice("Fixing uname for peer with nodeid=%u", nodeid);
ais_msg->sender.size = strlen(peer->uname);
memset(ais_msg->sender.uname, 0, MAX_NAME);
memcpy(ais_msg->sender.uname, peer->uname, ais_msg->sender.size);
}
}
ais_dispatch_message(ais_msg, pcmk_cpg_dispatch_fn);
}
static void
pcmk_cpg_membership(cpg_handle_t handle,
const struct cpg_name *groupName,
const struct cpg_address *member_list, size_t member_list_entries,
const struct cpg_address *left_list, size_t left_list_entries,
const struct cpg_address *joined_list, size_t joined_list_entries)
{
int i;
gboolean found = FALSE;
static int counter = 0;
for (i = 0; i < left_list_entries; i++) {
crm_node_t *peer = crm_get_peer(left_list[i].nodeid, NULL);
crm_info("Left[%d.%d] %s.%d ", counter, i, groupName->value, left_list[i].nodeid);
crm_update_peer_proc(__FUNCTION__, peer, crm_proc_cpg, OFFLINESTATUS);
}
for (i = 0; i < joined_list_entries; i++) {
crm_info("Joined[%d.%d] %s.%d ", counter, i, groupName->value, joined_list[i].nodeid);
}
for (i = 0; i < member_list_entries; i++) {
crm_node_t *peer = crm_get_peer(member_list[i].nodeid, NULL);
crm_info("Member[%d.%d] %s.%d ", counter, i, groupName->value, member_list[i].nodeid);
crm_update_peer_proc(__FUNCTION__, peer, crm_proc_cpg, ONLINESTATUS);
if(pcmk_nodeid == member_list[i].nodeid) {
found = TRUE;
}
}
if(!found) {
crm_err("We're not part of CPG group %s anymore!", groupName->value);
/* Possibly re-call cpg_join() */
}
counter++;
}
cpg_callbacks_t cpg_callbacks = {
.cpg_deliver_fn = pcmk_cpg_deliver,
.cpg_confchg_fn = pcmk_cpg_membership,
};
static gboolean
init_cpg_connection(gboolean(*dispatch) (int kind, const char *from, const char *data), void (*destroy) (gpointer),
uint32_t * nodeid)
{
int rc = -1;
int fd = 0;
int retries = 0;
crm_node_t *peer = NULL;
struct mainloop_fd_callbacks cpg_fd_callbacks = {
.dispatch = pcmk_cpg_dispatch,
.destroy = destroy,
};
strncpy(pcmk_cpg_group.value, crm_system_name, 128);
pcmk_cpg_group.length = strlen(crm_system_name) + 1;
cs_repeat(retries, 30, rc = cpg_initialize(&pcmk_cpg_handle, &cpg_callbacks));
if (rc != CS_OK) {
crm_err("Could not connect to the Cluster Process Group API: %d\n", rc);
goto bail;
}
retries = 0;
cs_repeat(retries, 30, rc = cpg_local_get(pcmk_cpg_handle, (unsigned int *)nodeid));
if (rc != CS_OK) {
crm_err("Could not get local node id from the CPG API");
goto bail;
}
retries = 0;
cs_repeat(retries, 30, rc = cpg_join(pcmk_cpg_handle, &pcmk_cpg_group));
if (rc != CS_OK) {
crm_err("Could not join the CPG group '%s': %d", crm_system_name, rc);
goto bail;
}
rc = cpg_fd_get(pcmk_cpg_handle, &fd);
if (rc != CS_OK) {
crm_err("Could not obtain the CPG API connection: %d\n", rc);
goto bail;
}
mainloop_add_fd("corosync-cpg", G_PRIORITY_MEDIUM, fd, dispatch, &cpg_fd_callbacks);
bail:
if (rc != CS_OK) {
cpg_finalize(pcmk_cpg_handle);
return FALSE;
}
peer = crm_get_peer(pcmk_nodeid, pcmk_uname);
crm_update_peer_proc(__FUNCTION__, peer, crm_proc_cpg, ONLINESTATUS);
return TRUE;
}
static int
pcmk_quorum_dispatch(gpointer user_data)
{
int rc = 0;
rc = quorum_dispatch(pcmk_quorum_handle, CS_DISPATCH_ALL);
if (rc < 0) {
crm_err("Connection to the Quorum API failed: %d", rc);
return -1;
}
return 0;
}
static void
corosync_mark_unseen_peer_dead(gpointer key, gpointer value, gpointer user_data)
{
int *seq = user_data;
crm_node_t *node = value;
if (node->last_seen != *seq && node->state && crm_str_eq(CRM_NODE_LOST, node->state, TRUE) == FALSE) {
crm_notice("Node %d/%s was not seen in the previous transition", node->id, node->uname);
crm_update_peer_state(__FUNCTION__, node, CRM_NODE_LOST, 0);
}
}
static void
corosync_mark_node_unseen(gpointer key, gpointer value, gpointer user_data)
{
crm_node_t *node = value;
node->last_seen = 0;
}
static void
pcmk_quorum_notification(quorum_handle_t handle,
uint32_t quorate,
uint64_t ring_id, uint32_t view_list_entries, uint32_t * view_list)
{
int i;
static gboolean init_phase = TRUE;
if (quorate != crm_have_quorum) {
crm_notice("Membership " U64T ": quorum %s (%lu)", ring_id,
quorate ? "acquired" : "lost", (long unsigned int)view_list_entries);
crm_have_quorum = quorate;
} else {
crm_info("Membership " U64T ": quorum %s (%lu)", ring_id,
quorate ? "retained" : "still lost", (long unsigned int)view_list_entries);
}
if(view_list_entries == 0 && init_phase) {
crm_info("Corosync membership is still forming, ignoring");
return;
}
init_phase = FALSE;
g_hash_table_foreach(crm_peer_cache, corosync_mark_node_unseen, NULL);
for (i = 0; i < view_list_entries; i++) {
uint32_t id = view_list[i];
char *name = NULL;
crm_node_t *node = NULL;
crm_debug("Member[%d] %d ", i, id);
node = crm_get_peer(id, NULL);
if(node->uname == NULL) {
crm_info("Obtaining name for new node %u", id);
name = corosync_node_name(0, id);
node = crm_get_peer(id, name);
}
crm_update_peer_state(__FUNCTION__, node, CRM_NODE_MEMBER, ring_id);
free(name);
}
crm_trace("Reaping unseen nodes...");
g_hash_table_foreach(crm_peer_cache, corosync_mark_unseen_peer_dead, &ring_id);
if (quorum_app_callback) {
quorum_app_callback(ring_id, quorate);
}
}
quorum_callbacks_t quorum_callbacks = {
.quorum_notify_fn = pcmk_quorum_notification,
};
gboolean
init_quorum_connection(gboolean(*dispatch) (unsigned long long, gboolean),
void (*destroy) (gpointer))
{
int rc = -1;
int fd = 0;
int quorate = 0;
uint32_t quorum_type = 0;
struct mainloop_fd_callbacks quorum_fd_callbacks;
quorum_fd_callbacks.dispatch = pcmk_quorum_dispatch;
quorum_fd_callbacks.destroy = destroy;
crm_debug("Configuring Pacemaker to obtain quorum from Corosync");
rc = quorum_initialize(&pcmk_quorum_handle, &quorum_callbacks, &quorum_type);
if (rc != CS_OK) {
crm_err("Could not connect to the Quorum API: %d\n", rc);
goto bail;
} else if (quorum_type != QUORUM_SET) {
crm_err("Corosync quorum is not configured\n");
goto bail;
}
rc = quorum_getquorate(pcmk_quorum_handle, &quorate);
if (rc != CS_OK) {
crm_err("Could not obtain the current Quorum API state: %d\n", rc);
goto bail;
}
crm_notice("Quorum %s", quorate ? "acquired" : "lost");
quorum_app_callback = dispatch;
crm_have_quorum = quorate;
rc = quorum_trackstart(pcmk_quorum_handle, CS_TRACK_CHANGES | CS_TRACK_CURRENT);
if (rc != CS_OK) {
crm_err("Could not setup Quorum API notifications: %d\n", rc);
goto bail;
}
rc = quorum_fd_get(pcmk_quorum_handle, &fd);
if (rc != CS_OK) {
crm_err("Could not obtain the Quorum API connection: %d\n", rc);
goto bail;
}
mainloop_add_fd("quorum", G_PRIORITY_HIGH, fd, dispatch, &quorum_fd_callbacks);
corosync_initialize_nodelist(NULL, FALSE, NULL);
bail:
if (rc != CS_OK) {
quorum_finalize(pcmk_quorum_handle);
return FALSE;
}
return TRUE;
}
gboolean
init_cs_connection(crm_cluster_t *cluster)
{
int retries = 0;
while (retries < 5) {
int rc = init_cs_connection_once(cluster);
retries++;
switch (rc) {
case CS_OK:
return TRUE;
break;
case CS_ERR_TRY_AGAIN:
case CS_ERR_QUEUE_FULL:
sleep(retries);
break;
default:
return FALSE;
}
}
crm_err("Could not connect to corosync after %d retries", retries);
return FALSE;
}
gboolean
init_cs_connection_once(crm_cluster_t *cluster)
{
enum cluster_type_e stack = get_cluster_type();
crm_peer_init();
/* Here we just initialize comms */
if(stack != pcmk_cluster_corosync) {
crm_err("Invalid cluster type: %s (%d)", name_for_cluster_type(stack), stack);
return FALSE;
}
if (init_cpg_connection(cluster->cs_dispatch, cluster->destroy, &pcmk_nodeid) == FALSE) {
return FALSE;
}
pcmk_uname = get_local_node_name();
crm_info("Connection to '%s': established", name_for_cluster_type(stack));
CRM_ASSERT(pcmk_uname != NULL);
pcmk_uname_len = strlen(pcmk_uname);
if (pcmk_nodeid != 0) {
/* Ensure the local node always exists */
crm_get_peer(pcmk_nodeid, pcmk_uname);
}
cluster->uuid = get_corosync_uuid(pcmk_nodeid, pcmk_uname);
cluster->uname = strdup(pcmk_uname);
cluster->nodeid = pcmk_nodeid;
return TRUE;
}
gboolean
check_message_sanity(const AIS_Message * msg, const char *data)
{
gboolean sane = TRUE;
int dest = msg->host.type;
int tmp_size = msg->header.size - sizeof(AIS_Message);
if (sane && msg->header.size == 0) {
crm_warn("Message with no size");
sane = FALSE;
}
if (sane && msg->header.error != CS_OK) {
crm_warn("Message header contains an error: %d", msg->header.error);
sane = FALSE;
}
if (sane && ais_data_len(msg) != tmp_size) {
crm_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) {
crm_warn("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;
crm_warn("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;
}
crm_debug("bad_data[%d]: %d / '%c'", lpc, data[lpc], data[lpc]);
}
}
}
if (sane == FALSE) {
crm_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 {
crm_trace
("Verfied 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;
}
enum cluster_type_e
find_corosync_variant(void)
{
int rc = CS_OK;
cmap_handle_t handle;
/* There can be only one (possibility if confdb isn't around) */
rc = cmap_initialize(&handle);
if (rc != CS_OK) {
crm_info("Failed to initialize the cmap API. Error %d", rc);
return pcmk_cluster_unknown;
}
cmap_finalize(handle);
return pcmk_cluster_corosync;
}
gboolean
crm_is_corosync_peer_active(const crm_node_t * node)
{
if (node == NULL) {
crm_trace("NULL");
return FALSE;
} else if(safe_str_neq(node->state, CRM_NODE_MEMBER)) {
crm_trace("%s: state=%s", node->uname, node->state);
return FALSE;
} else if((node->processes & crm_proc_cpg) == 0) {
crm_trace("%s: processes=%.16x", node->uname, node->processes);
return FALSE;
}
return TRUE;
}
gboolean
corosync_initialize_nodelist(void *cluster, gboolean force_member, xmlNode *xml_parent)
{
int lpc = 0;
int rc = CS_OK;
int retries = 0;
gboolean any = FALSE;
cmap_handle_t cmap_handle;
do {
rc = cmap_initialize(&cmap_handle);
if(rc != CS_OK) {
retries++;
crm_debug("API connection setup failed: %s. Retrying in %ds", cs_strerror(rc), retries);
sleep(retries);
}
} while(retries < 5 && rc != CS_OK);
if (rc != CS_OK) {
crm_warn("Could not connect to Cluster Configuration Database API, error %d", rc);
return FALSE;
}
crm_peer_init();
crm_trace("Initializing corosync nodelist");
for(lpc = 0; ; lpc++) {
uint32_t nodeid = 0;
char *name = NULL;
char *key = NULL;
key = g_strdup_printf("nodelist.node.%d.nodeid", lpc);
rc = cmap_get_uint32(cmap_handle, key, &nodeid);
g_free(key);
if(rc != CS_OK) {
break;
}
name = corosync_node_name(cmap_handle, nodeid);
if (name != NULL) {
crm_node_t *node = g_hash_table_lookup(crm_peer_cache, name);
if(node && node->id != nodeid) {
crm_crit("Nodes %u and %u share the same name '%s': shutting down", node->id, nodeid, name);
crm_exit(100);
}
}
if(nodeid > 0 || name != NULL) {
crm_trace("Initializing node[%d] %u = %s", lpc, nodeid, name);
crm_get_peer(nodeid, name);
}
if(nodeid > 0 && name != NULL) {
any = TRUE;
if(xml_parent) {
xmlNode *node = create_xml_node(xml_parent, XML_CIB_TAG_NODE);
crm_xml_add_int(node, XML_ATTR_ID, nodeid);
crm_xml_add(node, XML_ATTR_UNAME, name);
if(force_member) {
crm_xml_add(node, XML_ATTR_TYPE, CRM_NODE_MEMBER);
}
}
}
free(name);
}
cmap_finalize(cmap_handle);
return any;
}
diff --git a/lib/cluster/legacy.c b/lib/cluster/legacy.c
index 9b91e021c7..37d0fe8fae 100644
--- a/lib/cluster/legacy.c
+++ b/lib/cluster/legacy.c
@@ -1,1452 +1,1388 @@
/*
* 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 USA
*/
#include <crm_internal.h>
#include <crm/cluster/internal.h>
#include <bzlib.h>
#include <crm/common/ipc.h>
#include <crm/cluster.h>
#include <crm/common/mainloop.h>
#include <sys/utsname.h>
#include <sys/socket.h>
#include <netdb.h>
#if SUPPORT_COROSYNC
# include <corosync/confdb.h>
# include <corosync/corodefs.h>
# include <corosync/cpg.h>
# include <corosync/cfg.h>
cpg_handle_t pcmk_cpg_handle = 0;
struct cpg_name pcmk_cpg_group = {
.length = 0,
.value[0] = 0,
};
#endif
#if HAVE_CMAP
# include <corosync/cmap.h>
#endif
#if SUPPORT_CMAN
# include <libcman.h>
cman_handle_t pcmk_cman_handle = NULL;
#endif
static char *pcmk_uname = NULL;
static int pcmk_uname_len = 0;
static uint32_t pcmk_nodeid = 0;
int ais_membership_timer = 0;
gboolean ais_membership_force = FALSE;
int ais_dispatch(gpointer user_data);
#define cs_repeat(counter, max, code) do { \
code; \
if(rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) { \
counter++; \
crm_debug("Retrying operation after %ds", counter); \
sleep(counter); \
} else { \
break; \
} \
} while(counter < max)
enum crm_ais_msg_types
text2msg_type(const char *text)
{
int type = crm_msg_none;
CRM_CHECK(text != NULL, return type);
if (safe_str_eq(text, "ais")) {
type = crm_msg_ais;
} else if (safe_str_eq(text, "crm_plugin")) {
type = crm_msg_ais;
} else if (safe_str_eq(text, CRM_SYSTEM_CIB)) {
type = crm_msg_cib;
} else if (safe_str_eq(text, CRM_SYSTEM_CRMD)) {
type = crm_msg_crmd;
} else if (safe_str_eq(text, CRM_SYSTEM_DC)) {
type = crm_msg_crmd;
} else if (safe_str_eq(text, CRM_SYSTEM_TENGINE)) {
type = crm_msg_te;
} else if (safe_str_eq(text, CRM_SYSTEM_PENGINE)) {
type = crm_msg_pe;
} else if (safe_str_eq(text, CRM_SYSTEM_LRMD)) {
type = crm_msg_lrmd;
} else if (safe_str_eq(text, CRM_SYSTEM_STONITHD)) {
type = crm_msg_stonithd;
} else if (safe_str_eq(text, "stonith-ng")) {
type = crm_msg_stonith_ng;
} else if (safe_str_eq(text, "attrd")) {
type = crm_msg_attrd;
} else {
/* This will normally be a transient client rather than
* a cluster daemon. Set the type to the pid of the client
*/
int scan_rc = sscanf(text, "%d", &type);
if (scan_rc != 1) {
/* Ensure its sane */
type = crm_msg_none;
}
}
return type;
}
char *
get_ais_data(const AIS_Message * msg)
{
int rc = BZ_OK;
char *uncompressed = NULL;
unsigned int new_size = msg->size + 1;
if (msg->is_compressed == FALSE) {
crm_trace("Returning uncompressed message data");
uncompressed = strdup(msg->data);
} else {
crm_trace("Decompressing message data");
uncompressed = calloc(1, new_size);
rc = BZ2_bzBuffToBuffDecompress(uncompressed, &new_size, (char *)msg->data,
msg->compressed_size, 1, 0);
CRM_ASSERT(rc == BZ_OK);
CRM_ASSERT(new_size == msg->size);
}
return uncompressed;
}
#if SUPPORT_COROSYNC
int ais_fd_sync = -1;
int ais_fd_async = -1; /* never send messages via this channel */
void *ais_ipc_ctx = NULL;
hdb_handle_t ais_ipc_handle = 0;
static char *ais_cluster_name = NULL;
gboolean
get_ais_nodeid(uint32_t * id, char **uname)
{
struct iovec iov;
int retries = 0;
int rc = CS_OK;
cs_ipc_header_response_t header;
struct crm_ais_nodeid_resp_s answer;
header.error = CS_OK;
header.id = crm_class_nodeid;
header.size = sizeof(cs_ipc_header_response_t);
CRM_CHECK(id != NULL, return FALSE);
CRM_CHECK(uname != NULL, return FALSE);
iov.iov_base = &header;
iov.iov_len = header.size;
retry:
errno = 0;
rc = coroipcc_msg_send_reply_receive(ais_ipc_handle, &iov, 1, &answer, sizeof(answer));
if (rc == CS_OK) {
CRM_CHECK(answer.header.size == sizeof(struct crm_ais_nodeid_resp_s),
crm_err("Odd message: id=%d, size=%d, error=%d",
answer.header.id, answer.header.size, answer.header.error));
CRM_CHECK(answer.header.id == crm_class_nodeid,
crm_err("Bad response id: %d", answer.header.id));
}
if ((rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) && retries < 20) {
retries++;
crm_info("Peer overloaded: Re-sending message (Attempt %d of 20)", retries);
sleep(retries); /* Proportional back off */
goto retry;
}
if (rc != CS_OK) {
crm_err("Sending nodeid request: FAILED (rc=%d): %s", rc, ais_error2text(rc));
return FALSE;
} else if (answer.header.error != CS_OK) {
crm_err("Bad response from peer: (rc=%d): %s", rc, ais_error2text(rc));
return FALSE;
}
crm_info("Server details: id=%u uname=%s cname=%s", answer.id, answer.uname, answer.cname);
*id = answer.id;
*uname = strdup(answer.uname);
ais_cluster_name = strdup(answer.cname);
return TRUE;
}
gboolean
crm_get_cluster_name(char **cname)
{
CRM_CHECK(cname != NULL, return FALSE);
if (ais_cluster_name) {
*cname = strdup(ais_cluster_name);
return TRUE;
}
return FALSE;
}
gboolean
send_ais_text(int class, const char *data,
gboolean local, crm_node_t *node, enum crm_ais_msg_types dest)
{
static int msg_id = 0;
static int local_pid = 0;
enum cluster_type_e cluster_type = get_cluster_type();
int retries = 0;
int rc = CS_OK;
int buf_len = sizeof(cs_ipc_header_response_t);
char *buf = NULL;
struct iovec iov;
const char *transport = "pcmk";
cs_ipc_header_response_t *header = NULL;
AIS_Message *ais_msg = NULL;
enum crm_ais_msg_types sender = text2msg_type(crm_system_name);
/* There are only 6 handlers registered to crm_lib_service in plugin.c */
CRM_CHECK(class < 6, crm_err("Invalid message class: %d", class); return FALSE);
if (data == NULL) {
data = "";
}
if (local_pid == 0) {
local_pid = getpid();
}
if (sender == crm_msg_none) {
sender = local_pid;
}
ais_msg = calloc(1, sizeof(AIS_Message));
ais_msg->id = msg_id++;
ais_msg->header.id = class;
ais_msg->header.error = CS_OK;
ais_msg->host.type = dest;
ais_msg->host.local = local;
if (node) {
if (node->uname) {
ais_msg->host.size = strlen(node->uname);
memset(ais_msg->host.uname, 0, MAX_NAME);
memcpy(ais_msg->host.uname, node->uname, ais_msg->host.size);
}
ais_msg->host.id = node->id;
}
ais_msg->sender.id = 0;
ais_msg->sender.type = sender;
ais_msg->sender.pid = local_pid;
ais_msg->sender.size = pcmk_uname_len;
memset(ais_msg->sender.uname, 0, MAX_NAME);
memcpy(ais_msg->sender.uname, pcmk_uname, ais_msg->sender.size);
ais_msg->size = 1 + strlen(data);
if (ais_msg->size < CRM_BZ2_THRESHOLD) {
failback:
ais_msg = realloc(ais_msg, sizeof(AIS_Message) + ais_msg->size);
memcpy(ais_msg->data, data, ais_msg->size);
} else {
char *compressed = NULL;
char *uncompressed = strdup(data);
unsigned int len = (ais_msg->size * 1.1) + 600; /* recomended size */
crm_trace("Compressing message payload");
compressed = malloc( len);
rc = BZ2_bzBuffToBuffCompress(compressed, &len, uncompressed, ais_msg->size, CRM_BZ2_BLOCKS,
0, CRM_BZ2_WORK);
free(uncompressed);
if (rc != BZ_OK) {
crm_err("Compression failed: %d", rc);
free(compressed);
goto failback;
}
ais_msg = realloc(ais_msg, sizeof(AIS_Message) + len + 1);
memcpy(ais_msg->data, compressed, len);
ais_msg->data[len] = 0;
free(compressed);
ais_msg->is_compressed = TRUE;
ais_msg->compressed_size = len;
crm_trace("Compression details: %d -> %d", ais_msg->size, ais_data_len(ais_msg));
}
ais_msg->header.size = sizeof(AIS_Message) + ais_data_len(ais_msg);
crm_trace("Sending%s message %d to %s.%s (data=%d, total=%d)",
ais_msg->is_compressed ? " compressed" : "",
ais_msg->id, ais_dest(&(ais_msg->host)), msg_type2text(dest),
ais_data_len(ais_msg), ais_msg->header.size);
iov.iov_base = ais_msg;
iov.iov_len = ais_msg->header.size;
buf = realloc(buf, buf_len);
do {
if (rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) {
retries++;
crm_info("Peer overloaded or membership in flux:"
" Re-sending message (Attempt %d of 20)", retries);
sleep(retries); /* Proportional back off */
}
errno = 0;
switch (cluster_type) {
case pcmk_cluster_corosync:
CRM_ASSERT(FALSE/*Not supported here*/);
break;
case pcmk_cluster_classic_ais:
rc = coroipcc_msg_send_reply_receive(ais_ipc_handle, &iov, 1, buf, buf_len);
header = (cs_ipc_header_response_t *) buf;
if (rc == CS_OK) {
CRM_CHECK(header->size == sizeof(cs_ipc_header_response_t),
crm_err("Odd message: id=%d, size=%d, class=%d, error=%d",
header->id, header->size, class, header->error));
CRM_ASSERT(buf_len >= header->size);
CRM_CHECK(header->id == CRM_MESSAGE_IPC_ACK,
crm_err("Bad response id (%d) for request (%d)", header->id,
ais_msg->header.id));
CRM_CHECK(header->error == CS_OK, rc = header->error);
}
break;
case pcmk_cluster_cman:
transport = "cpg";
CRM_CHECK(dest != crm_msg_ais, rc = CS_ERR_MESSAGE_ERROR; goto bail);
rc = cpg_mcast_joined(pcmk_cpg_handle, CPG_TYPE_AGREED, &iov, 1);
if (rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) {
cpg_flow_control_state_t fc_state = CPG_FLOW_CONTROL_DISABLED;
int rc2 = cpg_flow_control_state_get(pcmk_cpg_handle, &fc_state);
if (rc2 == CS_OK && fc_state == CPG_FLOW_CONTROL_ENABLED) {
crm_warn("Connection overloaded, cannot send messages");
goto bail;
} else if (rc2 != CS_OK) {
crm_warn("Could not determin the connection state: %s (%d)",
ais_error2text(rc2), rc2);
goto bail;
}
}
break;
case pcmk_cluster_unknown:
case pcmk_cluster_invalid:
case pcmk_cluster_heartbeat:
CRM_ASSERT(is_openais_cluster());
break;
}
} while ((rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) && retries < 20);
bail:
if (rc != CS_OK) {
crm_perror(LOG_ERR, "Sending message %d via %s: FAILED (rc=%d): %s",
ais_msg->id, transport, rc, ais_error2text(rc));
} else {
crm_trace("Message %d: sent", ais_msg->id);
}
free(buf);
free(ais_msg);
return (rc == CS_OK);
}
gboolean
send_ais_message(xmlNode * msg, gboolean local, crm_node_t *node, enum crm_ais_msg_types dest)
{
gboolean rc = TRUE;
char *data = NULL;
if (is_classic_ais_cluster()) {
if (ais_fd_async < 0) {
crm_err("Not connected to AIS: %d", ais_fd_async);
return FALSE;
}
}
data = dump_xml_unformatted(msg);
rc = send_ais_text(crm_class_cluster, data, local, node, dest);
free(data);
return rc;
}
void
terminate_cs_connection(void)
{
crm_notice("Disconnecting from Corosync");
if (is_classic_ais_cluster()) {
if(ais_ipc_handle) {
crm_trace("Disconnecting plugin");
coroipcc_service_disconnect(ais_ipc_handle);
ais_ipc_handle = 0;
} else {
crm_info("No plugin connection");
}
} else {
if(pcmk_cpg_handle) {
crm_trace("Disconnecting CPG");
cpg_leave(pcmk_cpg_handle, &pcmk_cpg_group);
cpg_finalize(pcmk_cpg_handle);
pcmk_cpg_handle = 0;
} else {
crm_info("No CPG connection");
}
}
# if SUPPORT_CMAN
if (is_cman_cluster()) {
if(pcmk_cman_handle) {
crm_trace("Disconnecting cman");
cman_stop_notification(pcmk_cman_handle);
cman_finish(pcmk_cman_handle);
} else {
crm_info("No cman connection");
}
}
# endif
ais_fd_async = -1;
ais_fd_sync = -1;
}
static crm_node_t *
crm_update_ais_node(xmlNode * member, long long seq)
{
const char *id_s = crm_element_value(member, "id");
const char *addr = crm_element_value(member, "addr");
const char *uname = crm_element_value(member, "uname");
const char *state = crm_element_value(member, "state");
const char *born_s = crm_element_value(member, "born");
const char *seen_s = crm_element_value(member, "seen");
const char *votes_s = crm_element_value(member, "votes");
const char *procs_s = crm_element_value(member, "processes");
int votes = crm_int_helper(votes_s, NULL);
unsigned int id = crm_int_helper(id_s, NULL);
unsigned int procs = crm_int_helper(procs_s, NULL);
/* TODO: These values will contain garbage if version < 0.7.1 */
uint64_t born = crm_int_helper(born_s, NULL);
uint64_t seen = crm_int_helper(seen_s, NULL);
return crm_update_peer(__FUNCTION__, id, born, seen, votes, procs, uname, uname, addr, state);
}
static gboolean
ais_dispatch_message(AIS_Message * msg, gboolean(*dispatch) (int kind, const char *from, const char *data))
{
char *data = NULL;
char *uncompressed = NULL;
xmlNode *xml = NULL;
CRM_ASSERT(msg != NULL);
crm_trace("Got new%s message (size=%d, %d, %d)",
msg->is_compressed ? " compressed" : "",
ais_data_len(msg), msg->size, msg->compressed_size);
data = msg->data;
if (msg->is_compressed && msg->size > 0) {
int rc = BZ_OK;
unsigned int new_size = msg->size + 1;
if (check_message_sanity(msg, NULL) == FALSE) {
goto badmsg;
}
crm_trace("Decompressing message data");
uncompressed = calloc(1, new_size);
rc = BZ2_bzBuffToBuffDecompress(uncompressed, &new_size, data, msg->compressed_size, 1, 0);
if (rc != BZ_OK) {
crm_err("Decompression failed: %d", rc);
goto badmsg;
}
CRM_ASSERT(rc == BZ_OK);
CRM_ASSERT(new_size == msg->size);
data = uncompressed;
} else if (check_message_sanity(msg, data) == FALSE) {
goto badmsg;
} else if (safe_str_eq("identify", data)) {
int pid = getpid();
char *pid_s = crm_itoa(pid);
send_ais_text(crm_class_cluster, pid_s, TRUE, NULL, crm_msg_ais);
free(pid_s);
goto done;
}
if (msg->header.id != crm_class_members) {
crm_get_peer(msg->sender.id, msg->sender.uname);
}
if (msg->header.id == crm_class_rmpeer) {
uint32_t id = crm_int_helper(data, NULL);
crm_info("Removing peer %s/%u", data, id);
reap_crm_member(id, NULL);
goto done;
} else if (is_classic_ais_cluster()) {
if (msg->header.id == crm_class_members || msg->header.id == crm_class_quorum) {
xmlNode *node = NULL;
const char *value = NULL;
gboolean quorate = FALSE;
xml = string2xml(data);
if (xml == NULL) {
crm_err("Invalid membership update: %s", data);
goto badmsg;
}
value = crm_element_value(xml, "quorate");
CRM_CHECK(value != NULL, crm_log_xml_err(xml, "No quorum value:"); goto badmsg);
if (crm_is_true(value)) {
quorate = TRUE;
}
value = crm_element_value(xml, "id");
CRM_CHECK(value != NULL, crm_log_xml_err(xml, "No membership id"); goto badmsg);
crm_peer_seq = crm_int_helper(value, NULL);
if (quorate != crm_have_quorum) {
crm_notice("Membership %s: quorum %s", value, quorate ? "acquired" : "lost");
crm_have_quorum = quorate;
} else {
crm_info("Membership %s: quorum %s", value, quorate ? "retained" : "still lost");
}
for (node = __xml_first_child(xml); node != NULL; node = __xml_next(node)) {
crm_update_ais_node(node, crm_peer_seq);
}
}
}
crm_trace("Payload: %s", data);
if (dispatch != NULL) {
dispatch(msg->header.id, msg->sender.uname, data);
}
done:
free(uncompressed);
free_xml(xml);
return TRUE;
badmsg:
crm_err("Invalid message (id=%d, dest=%s:%s, from=%s:%s.%d):"
" min=%d, total=%d, size=%d, bz2_size=%d",
msg->id, ais_dest(&(msg->host)), msg_type2text(msg->host.type),
ais_dest(&(msg->sender)), msg_type2text(msg->sender.type),
msg->sender.pid, (int)sizeof(AIS_Message),
msg->header.size, msg->size, msg->compressed_size);
goto done;
}
int
ais_dispatch(gpointer user_data)
{
int rc = CS_OK;
gboolean good = TRUE;
gboolean(*dispatch) (int kind, const char *from, const char *data) = user_data;
do {
char *buffer = NULL;
rc = coroipcc_dispatch_get(ais_ipc_handle, (void **)&buffer, 0);
if (rc == CS_ERR_TRY_AGAIN || rc == CS_ERR_QUEUE_FULL) {
return 0;
}
if (rc != CS_OK) {
crm_perror(LOG_ERR, "Receiving message body failed: (%d) %s", rc, ais_error2text(rc));
return -1;
}
if (buffer == NULL) {
/* NULL is a legal "no message afterall" value */
return 0;
}
good = ais_dispatch_message((AIS_Message *) buffer, dispatch);
coroipcc_dispatch_put(ais_ipc_handle);
} while (good && ais_ipc_handle);
if(good) {
return 0;
}
return -1;
}
static void
ais_destroy(gpointer user_data)
{
crm_err("AIS connection terminated");
ais_fd_sync = -1;
crm_exit(1);
}
# if SUPPORT_CMAN
static int
pcmk_cman_dispatch(gpointer user_data)
{
int rc = cman_dispatch(pcmk_cman_handle, CMAN_DISPATCH_ALL);
if (rc < 0) {
crm_err("Connection to cman failed: %d", rc);
return FALSE;
}
return TRUE;
}
# define MAX_NODES 256
static void
cman_event_callback(cman_handle_t handle, void *privdata, int reason, int arg)
{
int rc = 0, lpc = 0, node_count = 0;
cman_cluster_t cluster;
static cman_node_t cman_nodes[MAX_NODES];
gboolean(*dispatch) (unsigned long long, gboolean) = privdata;
switch (reason) {
case CMAN_REASON_STATECHANGE:
memset(&cluster, 0, sizeof(cluster));
rc = cman_get_cluster(pcmk_cman_handle, &cluster);
if (rc < 0) {
crm_err("Couldn't query cman cluster details: %d %d", rc, errno);
return;
}
crm_peer_seq = cluster.ci_generation;
if (arg != crm_have_quorum) {
crm_notice("Membership %llu: quorum %s", crm_peer_seq, arg ? "acquired" : "lost");
crm_have_quorum = arg;
} else {
crm_info("Membership %llu: quorum %s", crm_peer_seq,
arg ? "retained" : "still lost");
}
rc = cman_get_nodes(pcmk_cman_handle, MAX_NODES, &node_count, cman_nodes);
if (rc < 0) {
crm_err("Couldn't query cman node list: %d %d", rc, errno);
return;
}
for (lpc = 0; lpc < node_count; lpc++) {
if (cman_nodes[lpc].cn_nodeid == 0) {
/* Never allow node ID 0 to be considered a member #315711 */
cman_nodes[lpc].cn_member = 0;
}
crm_update_peer(__FUNCTION__, cman_nodes[lpc].cn_nodeid, cman_nodes[lpc].cn_incarnation,
cman_nodes[lpc].cn_member ? crm_peer_seq : 0, 0, 0,
cman_nodes[lpc].cn_name, cman_nodes[lpc].cn_name, NULL,
cman_nodes[lpc].cn_member ? CRM_NODE_MEMBER : CRM_NODE_LOST);
}
if (dispatch) {
dispatch(crm_peer_seq, crm_have_quorum);
}
break;
case CMAN_REASON_TRY_SHUTDOWN:
/* Always reply with a negative - pacemaker needs to be stopped first */
crm_info("CMAN wants to shut down: %s", arg ? "forced" : "optional");
cman_replyto_shutdown(pcmk_cman_handle, 0);
break;
case CMAN_REASON_CONFIG_UPDATE:
/* Ignore */
break;
}
}
# endif
gboolean
init_cman_connection(gboolean(*dispatch) (unsigned long long, gboolean), void (*destroy) (gpointer))
{
# if SUPPORT_CMAN
int rc = -1, fd = -1;
cman_cluster_t cluster;
struct mainloop_fd_callbacks cman_fd_callbacks = {
.dispatch = pcmk_cman_dispatch,
.destroy = destroy,
};
crm_info("Configuring Pacemaker to obtain quorum from cman");
memset(&cluster, 0, sizeof(cluster));
pcmk_cman_handle = cman_init(dispatch);
if (pcmk_cman_handle == NULL || cman_is_active(pcmk_cman_handle) == FALSE) {
crm_err("Couldn't connect to cman");
goto cman_bail;
}
rc = cman_get_cluster(pcmk_cman_handle, &cluster);
if (rc < 0) {
crm_err("Couldn't query cman cluster details: %d %d", rc, errno);
goto cman_bail;
}
ais_cluster_name = strdup(cluster.ci_name);
rc = cman_start_notification(pcmk_cman_handle, cman_event_callback);
if (rc < 0) {
crm_err("Couldn't register for cman notifications: %d %d", rc, errno);
goto cman_bail;
}
/* Get the current membership state */
cman_event_callback(pcmk_cman_handle, dispatch, CMAN_REASON_STATECHANGE,
cman_is_quorate(pcmk_cman_handle));
fd = cman_get_fd(pcmk_cman_handle);
mainloop_add_fd("cman", G_PRIORITY_MEDIUM, fd, dispatch, &cman_fd_callbacks);
cman_bail:
if (rc < 0) {
cman_finish(pcmk_cman_handle);
return FALSE;
}
# else
crm_err("cman qorum is not supported in this build");
crm_exit(100);
# endif
return TRUE;
}
# ifdef SUPPORT_COROSYNC
gboolean(*pcmk_cpg_dispatch_fn) (int kind, const char *from, const char *data) = NULL;
static int
pcmk_cpg_dispatch(gpointer user_data)
{
int rc = 0;
pcmk_cpg_dispatch_fn = user_data;
rc = cpg_dispatch(pcmk_cpg_handle, CS_DISPATCH_ALL);
if (rc != CS_OK) {
crm_err("Connection to the CPG API failed: %d", rc);
return -1;
}
return 0;
}
static void
pcmk_cpg_deliver(cpg_handle_t handle,
const struct cpg_name *groupName,
uint32_t nodeid, uint32_t pid, void *msg, size_t msg_len)
{
AIS_Message *ais_msg = (AIS_Message *) msg;
if (ais_msg->sender.id > 0 && ais_msg->sender.id != nodeid) {
crm_err("Nodeid mismatch from %d.%d: claimed nodeid=%u", nodeid, pid, ais_msg->sender.id);
return;
} else if (ais_msg->host.size != 0 && safe_str_neq(ais_msg->host.uname, pcmk_uname)) {
/* Not for us */
return;
} else if (ais_msg->host.id != 0 && (pcmk_nodeid != ais_msg->host.id)) {
/* Not for us */
return;
}
ais_msg->sender.id = nodeid;
if (ais_msg->sender.size == 0) {
crm_node_t *peer = crm_get_peer(nodeid, NULL);
if (peer == NULL) {
crm_err("Peer with nodeid=%u is unknown", nodeid);
} else if (peer->uname == NULL) {
crm_err("No uname for peer with nodeid=%u", nodeid);
} else {
crm_notice("Fixing uname for peer with nodeid=%u", nodeid);
ais_msg->sender.size = strlen(peer->uname);
memset(ais_msg->sender.uname, 0, MAX_NAME);
memcpy(ais_msg->sender.uname, peer->uname, ais_msg->sender.size);
}
}
ais_dispatch_message(ais_msg, pcmk_cpg_dispatch_fn);
}
static void
pcmk_cpg_membership(cpg_handle_t handle,
const struct cpg_name *groupName,
const struct cpg_address *member_list, size_t member_list_entries,
const struct cpg_address *left_list, size_t left_list_entries,
const struct cpg_address *joined_list, size_t joined_list_entries)
{
int i;
for (i = 0; i < member_list_entries; i++) {
crm_node_t *peer = crm_get_peer(member_list[i].nodeid, NULL);
crm_debug("Member[%d] %d ", i, member_list[i].nodeid);
crm_update_peer_proc(__FUNCTION__, peer, crm_proc_cpg, ONLINESTATUS);
}
for (i = 0; i < left_list_entries; i++) {
crm_node_t *peer = crm_get_peer(left_list[i].nodeid, NULL);
crm_debug("Left[%d] %d ", i, left_list[i].nodeid);
crm_update_peer_proc(__FUNCTION__, peer, crm_proc_cpg, OFFLINESTATUS);
}
}
cpg_callbacks_t cpg_callbacks = {
.cpg_deliver_fn = pcmk_cpg_deliver,
.cpg_confchg_fn = pcmk_cpg_membership,
};
# endif
static gboolean
init_cpg_connection(crm_cluster_t *cluster)
{
# ifdef SUPPORT_COROSYNC
int rc = -1;
int fd = 0;
int retries = 0;
crm_node_t *peer = NULL;
struct mainloop_fd_callbacks cpg_fd_callbacks = {
.dispatch = pcmk_cpg_dispatch,
.destroy = cluster->destroy,
};
strcpy(pcmk_cpg_group.value, crm_system_name);
pcmk_cpg_group.length = strlen(crm_system_name) + 1;
cs_repeat(retries, 30, rc = cpg_initialize(&pcmk_cpg_handle, &cpg_callbacks));
if (rc != CS_OK) {
crm_err("Could not connect to the Cluster Process Group API: %d\n", rc);
goto bail;
}
retries = 0;
cs_repeat(retries, 30, rc = cpg_local_get(pcmk_cpg_handle, (unsigned int *)&cluster->nodeid));
if (rc != CS_OK) {
crm_err("Could not get local node id from the CPG API");
goto bail;
}
retries = 0;
cs_repeat(retries, 30, rc = cpg_join(pcmk_cpg_handle, &pcmk_cpg_group));
if (rc != CS_OK) {
crm_err("Could not join the CPG group '%s': %d", crm_system_name, rc);
goto bail;
}
rc = cpg_fd_get(pcmk_cpg_handle, &fd);
if (rc != CS_OK) {
crm_err("Could not obtain the CPG API connection: %d\n", rc);
goto bail;
}
mainloop_add_fd("corosync-cpg", G_PRIORITY_MEDIUM, fd, cluster->cs_dispatch, &cpg_fd_callbacks);
bail:
if (rc != CS_OK) {
cpg_finalize(pcmk_cpg_handle);
return FALSE;
}
peer = crm_get_peer(cluster->nodeid, pcmk_uname);
crm_update_peer_proc(__FUNCTION__, peer, crm_proc_cpg, ONLINESTATUS);
# else
crm_err("The Corosync CPG API is not supported in this build");
crm_exit(100);
# endif
return TRUE;
}
gboolean
init_quorum_connection(gboolean(*dispatch) (unsigned long long, gboolean),
void (*destroy) (gpointer))
{
crm_err("The Corosync quorum API is not supported in this build");
crm_exit(100);
return TRUE;
}
static gboolean
init_cs_connection_classic(crm_cluster_t *cluster)
{
int rc;
int pid = 0;
char *pid_s = NULL;
struct utsname name;
struct mainloop_fd_callbacks ais_fd_callbacks = {
.dispatch = ais_dispatch,
.destroy = cluster->destroy,
};
crm_info("Creating connection to our Corosync plugin");
rc = coroipcc_service_connect(COROSYNC_SOCKET_NAME, PCMK_SERVICE_ID,
AIS_IPC_MESSAGE_SIZE, AIS_IPC_MESSAGE_SIZE, AIS_IPC_MESSAGE_SIZE,
&ais_ipc_handle);
if (ais_ipc_handle) {
coroipcc_fd_get(ais_ipc_handle, &ais_fd_async);
} else {
crm_info("Connection to our AIS plugin (%d) failed: %s (%d)",
PCMK_SERVICE_ID, strerror(errno), errno);
return FALSE;
}
if (ais_fd_async <= 0 && rc == CS_OK) {
crm_err("No context created, but connection reported 'ok'");
rc = CS_ERR_LIBRARY;
}
if (rc != CS_OK) {
crm_info("Connection to our AIS plugin (%d) failed: %s (%d)", PCMK_SERVICE_ID,
ais_error2text(rc), rc);
}
if (rc != CS_OK) {
return FALSE;
}
if (ais_fd_callbacks.destroy == NULL) {
ais_fd_callbacks.destroy = ais_destroy;
}
mainloop_add_fd("corosync-plugin", G_PRIORITY_MEDIUM, ais_fd_async, cluster->cs_dispatch, &ais_fd_callbacks);
crm_info("AIS connection established");
pid = getpid();
pid_s = crm_itoa(pid);
send_ais_text(crm_class_cluster, pid_s, TRUE, NULL, crm_msg_ais);
free(pid_s);
if (uname(&name) < 0) {
crm_perror(LOG_ERR, "Could not determin the current host");
crm_exit(100);
}
get_ais_nodeid(&pcmk_nodeid, &pcmk_uname);
if (safe_str_neq(name.nodename, pcmk_uname)) {
crm_crit("Node name mismatch! Corosync supplied %s, our lookup returned %s",
pcmk_uname, name.nodename);
crm_notice
("Node name mismatches usually occur when assigned automatically by DHCP servers");
crm_notice("If this node was part of the cluster with a different name,"
" you will need to remove the old entry with crm_node --remove");
}
return TRUE;
}
static int
pcmk_mcp_dispatch(const char *buffer, ssize_t length, gpointer userdata)
{
xmlNode *msg = string2xml(buffer);
if (msg && is_classic_ais_cluster()) {
xmlNode *node = NULL;
for (node = __xml_first_child(msg); node != NULL; node = __xml_next(node)) {
int id = 0;
int children = 0;
const char *uname = crm_element_value(node, "uname");
crm_element_value_int(node, "id", &id);
crm_element_value_int(node, "processes", &children);
if (id == 0) {
crm_log_xml_err(msg, "Bad Update");
} else {
crm_node_t *peer = crm_get_peer(id, uname);
crm_update_peer_proc(__FUNCTION__, peer, children, NULL);
}
}
}
free_xml(msg);
return 0;
}
static void
pcmk_mcp_destroy(gpointer user_data)
{
void (*callback)(gpointer data) = user_data;
if(callback) {
callback(NULL);
}
}
gboolean
init_cs_connection(crm_cluster_t *cluster)
{
int retries = 0;
static struct ipc_client_callbacks mcp_callbacks =
{
.dispatch = pcmk_mcp_dispatch,
.destroy = pcmk_mcp_destroy
};
while (retries < 5) {
int rc = init_cs_connection_once(cluster);
retries++;
switch (rc) {
case CS_OK:
if (getenv("HA_mcp")) {
xmlNode *poke = create_xml_node(NULL, "poke");
mainloop_io_t *ipc = mainloop_add_ipc_client(CRM_SYSTEM_MCP, G_PRIORITY_MEDIUM, 0, cluster->destroy, &mcp_callbacks);
crm_ipc_send(mainloop_get_ipc_client(ipc), poke, 0, 0, NULL);
free_xml(poke);
}
return TRUE;
break;
case CS_ERR_TRY_AGAIN:
case CS_ERR_QUEUE_FULL:
sleep(retries);
break;
default:
return FALSE;
}
}
crm_err("Retry count exceeded: %d", retries);
return FALSE;
}
char *classic_node_name(uint32_t nodeid)
{
- int rc = CS_OK;
- int retries = 0;
- char *name = NULL;
-
- corosync_cfg_handle_t cfg_handle = 0;
- static corosync_cfg_callbacks_t cfg_callbacks = {};
-
- if(nodeid == 0 /* AKA. CMAN_NODEID_US */) {
- nodeid = pcmk_nodeid;
- }
-
- if(name == NULL) {
- retries = 0;
- crm_trace("Initializing CFG connection");
- do {
- rc = corosync_cfg_initialize(&cfg_handle, &cfg_callbacks);
- if(rc != CS_OK) {
- retries++;
- crm_debug("API connection setup failed: %d. Retrying in %ds", rc, retries);
- sleep(retries);
- }
-
- } while(retries < 5 && rc != CS_OK);
-
- if (rc != CS_OK) {
- crm_warn("Could not connect to the Corosync CFG API, error %d", rc);
- cfg_handle = 0;
- }
- }
-
- if(name == NULL && cfg_handle != 0) {
- int numaddrs;
- char buf[INET6_ADDRSTRLEN];
-
- socklen_t addrlen;
- struct sockaddr_storage *ss;
- corosync_cfg_node_address_t addrs[INTERFACE_MAX];
-
- rc = corosync_cfg_get_node_addrs(cfg_handle, nodeid, INTERFACE_MAX, &numaddrs, addrs);
- if (rc == CS_OK) {
- ss = (struct sockaddr_storage *)addrs[0].address;
- if (ss->ss_family == AF_INET6) {
- addrlen = sizeof(struct sockaddr_in6);
- } else {
- addrlen = sizeof(struct sockaddr_in);
- }
-
- if (getnameinfo((struct sockaddr *)addrs[0].address, addrlen, buf, sizeof(buf), NULL, 0, 0) == 0) {
- crm_notice("Inferred node name '%s' for nodeid %u from DNS", buf, nodeid);
-
- if(node_name_is_valid("DNS", buf)) {
- name = strdup(buf);
- strip_domain(name);
- }
- }
- } else {
- crm_debug("Unable to get node address for nodeid %u: %d", nodeid, rc);
- }
- corosync_cfg_finalize(cfg_handle);
- }
-
- if(name == NULL) {
- crm_debug("Unable to get node name for nodeid %u", nodeid);
- }
- return name;
+ return NULL; /* Always use the uname() default for localhost. No way to look up peers */
}
char *cman_node_name(uint32_t nodeid)
{
char *name = NULL;
# if SUPPORT_CMAN
cman_node_t us;
cman_handle_t cman;
cman = cman_init(NULL);
if (cman != NULL && cman_is_active(cman)) {
us.cn_name[0] = 0;
cman_get_node(cman, nodeid, &us);
name = strdup(us.cn_name);
crm_info("Using CMAN node name %s for %u", name, nodeid);
}
cman_finish(cman);
# endif
if(name == NULL) {
crm_debug("Unable to get node name for nodeid %u", nodeid);
}
return name;
}
extern int set_cluster_type(enum cluster_type_e type);
gboolean
init_cs_connection_once(crm_cluster_t *cluster)
{
enum cluster_type_e stack = get_cluster_type();
crm_peer_init();
/* Here we just initialize comms */
switch (stack) {
case pcmk_cluster_classic_ais:
if (init_cs_connection_classic(cluster) == FALSE) {
return FALSE;
}
break;
case pcmk_cluster_cman:
if (init_cpg_connection(cluster) == FALSE) {
return FALSE;
}
pcmk_uname = cman_node_name(0 /* CMAN_NODEID_US */);
break;
case pcmk_cluster_heartbeat:
crm_info("Could not find an active corosync based cluster");
return FALSE;
break;
default:
crm_err("Invalid cluster type: %s (%d)", name_for_cluster_type(stack), stack);
return FALSE;
break;
}
crm_info("Connection to '%s': established", name_for_cluster_type(stack));
CRM_ASSERT(pcmk_uname != NULL);
pcmk_uname_len = strlen(pcmk_uname);
pcmk_nodeid = cluster->nodeid;
if (pcmk_nodeid != 0) {
/* Ensure the local node always exists */
crm_get_peer(pcmk_nodeid, pcmk_uname);
}
cluster->uuid = get_corosync_uuid(pcmk_nodeid, pcmk_uname);
cluster->uname = strdup(pcmk_uname);
return TRUE;
}
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) {
crm_warn("Message with no size");
sane = FALSE;
}
if (sane && msg->header.error != CS_OK) {
crm_warn("Message header contains an error: %d", msg->header.error);
sane = FALSE;
}
if (sane && ais_data_len(msg) != tmp_size) {
crm_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) {
crm_warn("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;
crm_warn("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;
}
crm_debug("bad_data[%d]: %d / '%c'", lpc, data[lpc], data[lpc]);
}
}
}
if (sane == FALSE) {
crm_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) {
crm_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 {
crm_trace
("Verfied 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;
}
#endif
static int
get_config_opt(confdb_handle_t config,
hdb_handle_t object_handle, const char *key, char **value, const char *fallback)
{
size_t len = 0;
char *env_key = NULL;
const char *env_value = NULL;
char buffer[256];
if (*value) {
free(*value);
*value = NULL;
}
if (object_handle > 0) {
if (CS_OK == confdb_key_get(config, object_handle, key, strlen(key), &buffer, &len)) {
*value = strdup(buffer);
}
}
if (*value) {
crm_info("Found '%s' for option: %s", *value, key);
return 0;
}
env_key = crm_concat("HA", key, '_');
env_value = getenv(env_key);
free(env_key);
if (*value) {
crm_info("Found '%s' in ENV for option: %s", *value, key);
*value = strdup(env_value);
return 0;
}
if (fallback) {
crm_info("Defaulting to '%s' for option: %s", fallback, key);
*value = strdup(fallback);
} else {
crm_info("No default for option: %s", key);
}
return -1;
}
static confdb_handle_t
config_find_init(confdb_handle_t config)
{
cs_error_t rc = CS_OK;
confdb_handle_t local_handle = OBJECT_PARENT_HANDLE;
rc = confdb_object_find_start(config, local_handle);
if (rc == CS_OK) {
return local_handle;
} else {
crm_err("Couldn't create search context: %d", rc);
}
return 0;
}
static hdb_handle_t
config_find_next(confdb_handle_t config, const char *name, confdb_handle_t top_handle)
{
cs_error_t rc = CS_OK;
hdb_handle_t local_handle = 0;
if (top_handle == 0) {
crm_err("Couldn't search for %s: no valid context", name);
return 0;
}
crm_trace("Searching for %s in " HDB_X_FORMAT, name, top_handle);
rc = confdb_object_find(config, top_handle, name, strlen(name), &local_handle);
if (rc != CS_OK) {
crm_info("No additional configuration supplied for: %s", name);
local_handle = 0;
} else {
crm_info("Processing additional %s options...", name);
}
return local_handle;
}
enum cluster_type_e
find_corosync_variant(void)
{
confdb_handle_t config;
enum cluster_type_e found = pcmk_cluster_unknown;
int rc;
char *value = NULL;
confdb_handle_t top_handle = 0;
hdb_handle_t local_handle = 0;
static confdb_callbacks_t callbacks = { };
rc = confdb_initialize(&config, &callbacks);
if (rc != CS_OK) {
crm_debug("Could not initialize Cluster Configuration Database API instance error %d", rc);
return found;
}
top_handle = config_find_init(config);
local_handle = config_find_next(config, "service", top_handle);
while (local_handle) {
get_config_opt(config, local_handle, "name", &value, NULL);
if (safe_str_eq("pacemaker", value)) {
found = pcmk_cluster_classic_ais;
get_config_opt(config, local_handle, "ver", &value, "0");
crm_trace("Found Pacemaker plugin version: %s", value);
break;
}
local_handle = config_find_next(config, "service", top_handle);
}
if (found == pcmk_cluster_unknown) {
top_handle = config_find_init(config);
local_handle = config_find_next(config, "quorum", top_handle);
get_config_opt(config, local_handle, "provider", &value, NULL);
if (safe_str_eq("quorum_cman", value)) {
crm_trace("Found CMAN quorum provider");
found = pcmk_cluster_cman;
}
}
free(value);
confdb_finalize(config);
return found;
}
gboolean
crm_is_corosync_peer_active(const crm_node_t * node)
{
enum crm_proc_flag proc = crm_proc_none;
if (node == NULL) {
crm_trace("NULL");
return FALSE;
} else if(safe_str_neq(node->state, CRM_NODE_MEMBER)) {
crm_trace("%s: state=%s", node->uname, node->state);
return FALSE;
} else if(is_cman_cluster() && (node->processes & crm_proc_cpg)) {
/* If we can still talk to our peer process on that node,
* then its also part of the corosync membership
*/
crm_trace("%s: processes=%.8x", node->uname, node->processes);
return TRUE;
} else if(is_classic_ais_cluster()) {
if(node->processes < crm_proc_none) {
crm_debug("%s: unknown process list, assuming active for now", node->uname);
return TRUE;
} else if(is_set(node->processes, crm_proc_none)) {
crm_debug("%s: all processes are inactive", node->uname);
return FALSE;
} else if(is_not_set(node->processes, crm_proc_plugin)) {
crm_trace("%s: processes=%.8x", node->uname, node->processes);
return FALSE;
}
}
proc = text2proc(crm_system_name);
if(proc > crm_proc_none && (node->processes & proc) == 0) {
crm_trace("%s: proc %.8x not in %.8x", node->uname, proc, node->processes);
return FALSE;
}
return TRUE;
}