static int
resource_clear_node_in_location(const char *rsc_id, const char *host, cib_t * cib_conn,
bool clear_ban_constraints)
{
int rc = pcmk_ok;
xmlNode *fragment = NULL;
xmlNode *location = NULL;
fragment = create_xml_node(NULL, XML_CIB_TAG_CONSTRAINTS);
if (clear_ban_constraints == TRUE) {
location = create_xml_node(fragment, XML_CONS_TAG_RSC_LOCATION);
crm_xml_set_id(location, "cli-ban-%s-on-%s", rsc_id, host);
}
location = create_xml_node(fragment, XML_CONS_TAG_RSC_LOCATION);
crm_xml_set_id(location, "cli-prefer-%s", rsc_id);
if (do_force == FALSE) {
crm_xml_add(location, XML_CIB_TAG_NODE, host);
}
crm_log_xml_info(fragment, "Delete");
rc = cib_conn->cmds->remove(cib_conn, XML_CIB_TAG_CONSTRAINTS, fragment, cib_options);
if (rc == -ENXIO) {
rc = pcmk_ok;
}
free(fragment);
return rc;
}
/*!
* \brief Create an XML name/value pair
*
* \param[in] parent If not \c NULL, make new XML node a child of this one
* \param[in] id If not \c NULL, use this as ID (otherwise auto-generate)
* \param[in] name Name to use
* \param[in] value Value to use
*
* \return New XML object on success, \c NULL otherwise
*/
xmlNode *
crm_create_nvpair_xml(xmlNode *parent, const char *id, const char *name,
const char *value)
{
xmlNode *nvp;
/* id can be NULL so we auto-generate one, and name can be NULL if this
* will be used to delete a name/value pair by ID, but both can't be NULL
*/
CRM_CHECK(id || name, return NULL);
nvp = create_xml_node(parent, XML_CIB_TAG_NVPAIR);
CRM_CHECK(nvp, return NULL);
if (id) {
crm_xml_add(nvp, XML_ATTR_ID, id);
} else {
const char *parent_id = ID(parent);
crm_xml_set_id(nvp, "%s-%s",
(parent_id? parent_id : XML_CIB_TAG_NVPAIR), name);
}
crm_xml_add(nvp, XML_NVPAIR_ATTR_NAME, name);
crm_xml_add(nvp, XML_NVPAIR_ATTR_VALUE, value);
return nvp;
}
static void
force_local_option(xmlNode *xml, const char *attr_name, const char *attr_value)
{
int max = 0;
int lpc = 0;
char *xpath_string = NULL;
xmlXPathObjectPtr xpathObj = NULL;
xpath_string = crm_strdup_printf("%.128s//%s//nvpair[@name='%.128s']",
get_object_path(XML_CIB_TAG_CRMCONFIG),
XML_CIB_TAG_PROPSET, attr_name);
xpathObj = xpath_search(xml, xpath_string);
max = numXpathResults(xpathObj);
free(xpath_string);
for (lpc = 0; lpc < max; lpc++) {
xmlNode *match = getXpathResult(xpathObj, lpc);
crm_trace("Forcing %s/%s = %s", ID(match), attr_name, attr_value);
crm_xml_add(match, XML_NVPAIR_ATTR_VALUE, attr_value);
}
if(max == 0) {
xmlNode *configuration = NULL;
xmlNode *crm_config = NULL;
xmlNode *cluster_property_set = NULL;
crm_trace("Creating %s-%s for %s=%s",
CIB_OPTIONS_FIRST, attr_name, attr_name, attr_value);
configuration = find_entity(xml, XML_CIB_TAG_CONFIGURATION, NULL);
if (configuration == NULL) {
configuration = create_xml_node(xml, XML_CIB_TAG_CONFIGURATION);
}
crm_config = find_entity(configuration, XML_CIB_TAG_CRMCONFIG, NULL);
if (crm_config == NULL) {
crm_config = create_xml_node(configuration, XML_CIB_TAG_CRMCONFIG);
}
cluster_property_set = find_entity(crm_config, XML_CIB_TAG_PROPSET, NULL);
if (cluster_property_set == NULL) {
cluster_property_set = create_xml_node(crm_config, XML_CIB_TAG_PROPSET);
crm_xml_add(cluster_property_set, XML_ATTR_ID, CIB_OPTIONS_FIRST);
}
xml = create_xml_node(cluster_property_set, XML_CIB_TAG_NVPAIR);
crm_xml_set_id(xml, "%s-%s", CIB_OPTIONS_FIRST, attr_name);
crm_xml_add(xml, XML_NVPAIR_ATTR_NAME, attr_name);
crm_xml_add(xml, XML_NVPAIR_ATTR_VALUE, attr_value);
}
freeXpathObject(xpathObj);
}
static void
build_update_element(xmlNode *parent, attribute_t *a, const char *nodeid, const char *value)
{
const char *set = NULL;
xmlNode *xml_obj = NULL;
xml_obj = create_xml_node(parent, XML_CIB_TAG_STATE);
crm_xml_add(xml_obj, XML_ATTR_ID, nodeid);
xml_obj = create_xml_node(xml_obj, XML_TAG_TRANSIENT_NODEATTRS);
crm_xml_add(xml_obj, XML_ATTR_ID, nodeid);
xml_obj = create_xml_node(xml_obj, XML_TAG_ATTR_SETS);
if (a->set) {
crm_xml_set_id(xml_obj, "%s", a->set);
} else {
crm_xml_set_id(xml_obj, "%s-%s", XML_CIB_TAG_STATUS, nodeid);
}
set = ID(xml_obj);
xml_obj = create_xml_node(xml_obj, XML_CIB_TAG_NVPAIR);
if (a->uuid) {
crm_xml_set_id(xml_obj, "%s", a->uuid);
} else {
crm_xml_set_id(xml_obj, "%s-%s", set, a->id);
}
crm_xml_add(xml_obj, XML_NVPAIR_ATTR_NAME, a->id);
if(value) {
crm_xml_add(xml_obj, XML_NVPAIR_ATTR_VALUE, value);
} else {
crm_xml_add(xml_obj, XML_NVPAIR_ATTR_VALUE, "");
crm_xml_add(xml_obj, "__delete__", XML_NVPAIR_ATTR_VALUE);
}
}
int
cli_resource_ban(const char *rsc_id, const char *host, GListPtr allnodes, cib_t * cib_conn)
{
char *later_s = NULL;
int rc = pcmk_ok;
xmlNode *fragment = NULL;
xmlNode *location = NULL;
if(host == NULL) {
GListPtr n = allnodes;
for(; n && rc == pcmk_ok; n = n->next) {
node_t *target = n->data;
rc = cli_resource_ban(rsc_id, target->details->uname, NULL, cib_conn);
}
return rc;
}
later_s = parse_cli_lifetime(move_lifetime);
if(move_lifetime && later_s == NULL) {
return -EINVAL;
}
fragment = create_xml_node(NULL, XML_CIB_TAG_CONSTRAINTS);
location = create_xml_node(fragment, XML_CONS_TAG_RSC_LOCATION);
crm_xml_set_id(location, "cli-ban-%s-on-%s", rsc_id, host);
if (BE_QUIET == FALSE) {
CMD_ERR("WARNING: Creating rsc_location constraint '%s'"
" with a score of -INFINITY for resource %s"
" on %s.", ID(location), rsc_id, host);
CMD_ERR("\tThis will prevent %s from %s on %s until the constraint "
"is removed using the clear option or by editing the CIB "
"with an appropriate tool",
rsc_id, (scope_master? "being promoted" : "running"), host);
CMD_ERR("\tThis will be the case even if %s is"
" the last node in the cluster", host);
}
crm_xml_add(location, XML_LOC_ATTR_SOURCE, rsc_id);
if(scope_master) {
crm_xml_add(location, XML_RULE_ATTR_ROLE, RSC_ROLE_MASTER_S);
} else {
crm_xml_add(location, XML_RULE_ATTR_ROLE, RSC_ROLE_STARTED_S);
}
if (later_s == NULL) {
/* Short form */
crm_xml_add(location, XML_CIB_TAG_NODE, host);
crm_xml_add(location, XML_RULE_ATTR_SCORE, CRM_MINUS_INFINITY_S);
} else {
xmlNode *rule = create_xml_node(location, XML_TAG_RULE);
xmlNode *expr = create_xml_node(rule, XML_TAG_EXPRESSION);
crm_xml_set_id(rule, "cli-ban-%s-on-%s-rule", rsc_id, host);
crm_xml_add(rule, XML_RULE_ATTR_SCORE, CRM_MINUS_INFINITY_S);
crm_xml_add(rule, XML_RULE_ATTR_BOOLEAN_OP, "and");
crm_xml_set_id(expr, "cli-ban-%s-on-%s-expr", rsc_id, host);
crm_xml_add(expr, XML_EXPR_ATTR_ATTRIBUTE, CRM_ATTR_UNAME);
crm_xml_add(expr, XML_EXPR_ATTR_OPERATION, "eq");
crm_xml_add(expr, XML_EXPR_ATTR_VALUE, host);
crm_xml_add(expr, XML_EXPR_ATTR_TYPE, "string");
expr = create_xml_node(rule, "date_expression");
crm_xml_set_id(expr, "cli-ban-%s-on-%s-lifetime", rsc_id, host);
crm_xml_add(expr, "operation", "lt");
crm_xml_add(expr, "end", later_s);
}
crm_log_xml_notice(fragment, "Modify");
rc = cib_conn->cmds->update(cib_conn, XML_CIB_TAG_CONSTRAINTS, fragment, cib_options);
free_xml(fragment);
free(later_s);
return rc;
}
int
cli_resource_clear_all_expired(xmlNode *root, cib_t *cib_conn, const char *rsc, const char *node, bool scope_master)
{
xmlXPathObject *xpathObj = NULL;
xmlNode *cib_constraints = NULL;
crm_time_t *now = crm_time_new(NULL);
int i;
int rc = pcmk_ok;
cib_constraints = get_object_root(XML_CIB_TAG_CONSTRAINTS, root);
xpathObj = xpath_search(cib_constraints, "//" XML_CONS_TAG_RSC_LOCATION);
for (i = 0; i < numXpathResults(xpathObj); i++) {
xmlNode *constraint_node = getXpathResult(xpathObj, i);
xmlNode *date_expr_node = NULL;
crm_time_t *end = NULL;
char *xpath_string = NULL;
xpath_string = build_clear_xpath_string(constraint_node, rsc, node, scope_master);
if (xpath_string == NULL) {
continue;
}
date_expr_node = get_xpath_object(xpath_string, constraint_node, LOG_DEBUG);
if (date_expr_node == NULL) {
free(xpath_string);
continue;
}
/* And then finally, see if the date expression is expired. If so,
* clear the constraint.
*/
end = crm_time_new(crm_element_value(date_expr_node, "end"));
if (crm_time_compare(now, end) == 1) {
xmlNode *fragment = NULL;
xmlNode *location = NULL;
fragment = create_xml_node(NULL, XML_CIB_TAG_CONSTRAINTS);
location = create_xml_node(fragment, XML_CONS_TAG_RSC_LOCATION);
crm_xml_set_id(location, "%s", ID(constraint_node));
crm_log_xml_info(fragment, "Delete");
rc = cib_conn->cmds->remove(cib_conn, XML_CIB_TAG_CONSTRAINTS,
fragment, cib_options);
if (rc != pcmk_ok) {
free(xpath_string);
goto bail;
}
free_xml(fragment);
}
crm_time_free(end);
free(xpath_string);
}
rc = pcmk_ok;
bail:
freeXpathObject(xpathObj);
crm_time_free(now);
return rc;
}
int
cli_resource_prefer(const char *rsc_id, const char *host, cib_t * cib_conn)
{
char *later_s = parse_cli_lifetime(move_lifetime);
int rc = pcmk_ok;
xmlNode *location = NULL;
xmlNode *fragment = NULL;
if(move_lifetime && later_s == NULL) {
return -EINVAL;
}
if(cib_conn == NULL) {
free(later_s);
return -ENOTCONN;
}
fragment = create_xml_node(NULL, XML_CIB_TAG_CONSTRAINTS);
location = create_xml_node(fragment, XML_CONS_TAG_RSC_LOCATION);
crm_xml_set_id(location, "cli-prefer-%s", rsc_id);
crm_xml_add(location, XML_LOC_ATTR_SOURCE, rsc_id);
if(scope_master) {
crm_xml_add(location, XML_RULE_ATTR_ROLE, RSC_ROLE_MASTER_S);
} else {
crm_xml_add(location, XML_RULE_ATTR_ROLE, RSC_ROLE_STARTED_S);
}
if (later_s == NULL) {
/* Short form */
crm_xml_add(location, XML_CIB_TAG_NODE, host);
crm_xml_add(location, XML_RULE_ATTR_SCORE, CRM_INFINITY_S);
} else {
xmlNode *rule = create_xml_node(location, XML_TAG_RULE);
xmlNode *expr = create_xml_node(rule, XML_TAG_EXPRESSION);
crm_xml_set_id(rule, "cli-prefer-rule-%s", rsc_id);
crm_xml_add(rule, XML_RULE_ATTR_SCORE, CRM_INFINITY_S);
crm_xml_add(rule, XML_RULE_ATTR_BOOLEAN_OP, "and");
crm_xml_set_id(expr, "cli-prefer-expr-%s", rsc_id);
crm_xml_add(expr, XML_EXPR_ATTR_ATTRIBUTE, CRM_ATTR_UNAME);
crm_xml_add(expr, XML_EXPR_ATTR_OPERATION, "eq");
crm_xml_add(expr, XML_EXPR_ATTR_VALUE, host);
crm_xml_add(expr, XML_EXPR_ATTR_TYPE, "string");
expr = create_xml_node(rule, "date_expression");
crm_xml_set_id(expr, "cli-prefer-lifetime-end-%s", rsc_id);
crm_xml_add(expr, "operation", "lt");
crm_xml_add(expr, "end", later_s);
}
crm_log_xml_info(fragment, "Modify");
rc = cib_conn->cmds->update(cib_conn, XML_CIB_TAG_CONSTRAINTS, fragment, cib_options);
free_xml(fragment);
free(later_s);
return rc;
}
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; TRUE; lpc++) {
uint32_t nodeid = 0;
char *name = NULL;
char *key = NULL;
key = crm_strdup_printf("nodelist.node.%d.nodeid", lpc);
rc = cmap_get_uint32(cmap_handle, key, &nodeid);
free(key);
if (rc != CS_OK) {
break;
}
name = corosync_node_name(cmap_handle, nodeid);
if (name != NULL) {
GHashTableIter iter;
crm_node_t *node = NULL;
g_hash_table_iter_init(&iter, crm_peer_cache);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &node)) {
if(node && node->uname && strcasecmp(node->uname, name) == 0) {
if (node->id && node->id != nodeid) {
crm_crit("Nodes %u and %u share the same name '%s': shutting down", node->id,
nodeid, name);
crm_exit(CRM_EX_FATAL);
}
}
}
}
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_set_id(node, "%u", 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;
}
gboolean
corosync_initialize_nodelist(void *cluster, gboolean force_member, xmlNode * xml_parent)
{
int lpc = 0;
cs_error_t rc = CS_OK;
int retries = 0;
gboolean any = FALSE;
cmap_handle_t cmap_handle;
int fd = -1;
uid_t found_uid = 0;
gid_t found_gid = 0;
pid_t found_pid = 0;
int rv;
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;
}
rc = cmap_fd_get(cmap_handle, &fd);
if (rc != CS_OK) {
crm_err("Could not obtain the CMAP API connection: %s (%d)",
cs_strerror(rc), rc);
goto bail;
}
/* CMAP provider run as root (in given user namespace, anyway)? */
if (!(rv = crm_ipc_is_authentic_process(fd, (uid_t) 0,(gid_t) 0, &found_pid,
&found_uid, &found_gid))) {
crm_err("CMAP provider is not authentic:"
" process %lld (uid: %lld, gid: %lld)",
(long long) PCMK__SPECIAL_PID_AS_0(found_pid),
(long long) found_uid, (long long) found_gid);
goto bail;
} else if (rv < 0) {
crm_err("Could not verify authenticity of CMAP provider: %s (%d)",
strerror(-rv), -rv);
goto bail;
}
crm_peer_init();
crm_trace("Initializing corosync nodelist");
for (lpc = 0; TRUE; lpc++) {
uint32_t nodeid = 0;
char *name = NULL;
char *key = NULL;
key = crm_strdup_printf("nodelist.node.%d.nodeid", lpc);
rc = cmap_get_uint32(cmap_handle, key, &nodeid);
free(key);
if (rc != CS_OK) {
break;
}
name = corosync_node_name(cmap_handle, nodeid);
if (name != NULL) {
GHashTableIter iter;
crm_node_t *node = NULL;
g_hash_table_iter_init(&iter, crm_peer_cache);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &node)) {
if(node && node->uname && strcasecmp(node->uname, name) == 0) {
if (node->id && node->id != nodeid) {
crm_crit("Nodes %u and %u share the same name '%s': shutting down", node->id,
nodeid, name);
crm_exit(CRM_EX_FATAL);
}
}
}
}
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_set_id(node, "%u", nodeid);
crm_xml_add(node, XML_ATTR_UNAME, name);
if (force_member) {
crm_xml_add(node, XML_ATTR_TYPE, CRM_NODE_MEMBER);
}
}
}
free(name);
}
bail:
cmap_finalize(cmap_handle);
return any;
}
