diff --git a/lib/cib/cib_attrs.c b/lib/cib/cib_attrs.c index d929fa20b6..1e1a369504 100644 --- a/lib/cib/cib_attrs.c +++ b/lib/cib/cib_attrs.c @@ -1,609 +1,612 @@ /* * Copyright (C) 2004 Andrew Beekhof * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #define attr_msg(level, fmt, args...) do { \ if(to_console) { \ printf(fmt"\n", ##args); \ } else { \ do_crm_log(level, fmt , ##args); \ } \ } while(0) /* could also check for possible truncation */ #define attr_snprintf(_str, _offset, _limit, ...) do { \ _offset += snprintf(_str + _offset, \ (_limit > _offset) ? _limit - _offset : 0, \ __VA_ARGS__); \ } while(0) extern int find_nvpair_attr_delegate(cib_t * the_cib, const char *attr, const char *section, const char *node_uuid, const char *attr_set_type, const char *set_name, const char *attr_id, const char *attr_name, gboolean to_console, char **value, const char *user_name) { int offset = 0; static int xpath_max = 1024; int rc = pcmk_ok; char *xpath_string = NULL; xmlNode *xml_search = NULL; const char *set_type = NULL; const char *node_type = NULL; if (attr_set_type) { set_type = attr_set_type; } else { set_type = XML_TAG_ATTR_SETS; } CRM_ASSERT(value != NULL); *value = NULL; if (safe_str_eq(section, XML_CIB_TAG_CRMCONFIG)) { node_uuid = NULL; set_type = XML_CIB_TAG_PROPSET; } else if (safe_str_eq(section, XML_CIB_TAG_OPCONFIG) || safe_str_eq(section, XML_CIB_TAG_RSCCONFIG)) { node_uuid = NULL; set_type = XML_TAG_META_SETS; } else if (safe_str_eq(section, XML_CIB_TAG_TICKETS)) { node_uuid = NULL; section = XML_CIB_TAG_STATUS; node_type = XML_CIB_TAG_TICKETS; } else if (node_uuid == NULL) { return -EINVAL; } xpath_string = calloc(1, xpath_max); - CRM_CHECK(xpath_string != NULL, return -ENOMEM); + if (xpath_string == NULL) { + crm_perror(LOG_CRIT, "Could not create xpath"); + return -ENOMEM; + } attr_snprintf(xpath_string, offset, xpath_max, "%.128s", get_object_path(section)); if (safe_str_eq(node_type, XML_CIB_TAG_TICKETS)) { attr_snprintf(xpath_string, offset, xpath_max, "//%s", node_type); } else if (node_uuid) { const char *node_type = XML_CIB_TAG_NODE; if (safe_str_eq(section, XML_CIB_TAG_STATUS)) { node_type = XML_CIB_TAG_STATE; set_type = XML_TAG_TRANSIENT_NODEATTRS; } attr_snprintf(xpath_string, offset, xpath_max, "//%s[@id='%s']", node_type, node_uuid); } if (set_name) { attr_snprintf(xpath_string, offset, xpath_max, "//%s[@id='%.128s']", set_type, set_name); } else { attr_snprintf(xpath_string, offset, xpath_max, "//%s", set_type); } attr_snprintf(xpath_string, offset, xpath_max, "//nvpair["); if (attr_id) { attr_snprintf(xpath_string, offset, xpath_max, "@id='%s'", attr_id); } if (attr_name) { if (attr_id) { attr_snprintf(xpath_string, offset, xpath_max, " and "); } attr_snprintf(xpath_string, offset, xpath_max, "@name='%.128s'", attr_name); } attr_snprintf(xpath_string, offset, xpath_max, "]"); CRM_LOG_ASSERT(offset > 0); rc = cib_internal_op(the_cib, CIB_OP_QUERY, NULL, xpath_string, NULL, &xml_search, cib_sync_call | cib_scope_local | cib_xpath, user_name); if (rc != pcmk_ok) { crm_trace("Query failed for attribute %s (section=%s, node=%s, set=%s, xpath=%s): %s", attr_name, section, crm_str(node_uuid), crm_str(set_name), xpath_string, pcmk_strerror(rc)); goto done; } crm_log_xml_debug(xml_search, "Match"); if (xml_has_children(xml_search)) { xmlNode *child = NULL; rc = -ENOTUNIQ; attr_msg(LOG_WARNING, "Multiple attributes match name=%s", attr_name); for (child = __xml_first_child(xml_search); child != NULL; child = __xml_next(child)) { attr_msg(LOG_INFO, " Value: %s \t(id=%s)", crm_element_value(child, XML_NVPAIR_ATTR_VALUE), ID(child)); } } else { const char *tmp = crm_element_value(xml_search, attr); if (tmp) { *value = strdup(tmp); } } done: free(xpath_string); free_xml(xml_search); return rc; } int update_attr_delegate(cib_t * the_cib, int call_options, const char *section, const char *node_uuid, const char *set_type, const char *set_name, const char *attr_id, const char *attr_name, const char *attr_value, gboolean to_console, const char *user_name, const char *node_type) { const char *tag = NULL; int rc = pcmk_ok; xmlNode *xml_top = NULL; xmlNode *xml_obj = NULL; char *local_attr_id = NULL; char *local_set_name = NULL; CRM_CHECK(section != NULL, return -EINVAL); CRM_CHECK(attr_value != NULL, return -EINVAL); CRM_CHECK(attr_name != NULL || attr_id != NULL, return -EINVAL); rc = find_nvpair_attr_delegate(the_cib, XML_ATTR_ID, section, node_uuid, set_type, set_name, attr_id, attr_name, to_console, &local_attr_id, user_name); if (rc == pcmk_ok) { attr_id = local_attr_id; goto do_modify; } else if (rc != -ENXIO) { return rc; /* } else if(attr_id == NULL) { */ /* return -EINVAL; */ } else { crm_trace("%s does not exist, create it", attr_name); if (safe_str_eq(section, XML_CIB_TAG_TICKETS)) { node_uuid = NULL; section = XML_CIB_TAG_STATUS; node_type = XML_CIB_TAG_TICKETS; xml_top = create_xml_node(xml_obj, XML_CIB_TAG_STATUS); xml_obj = create_xml_node(xml_top, XML_CIB_TAG_TICKETS); } else if (safe_str_eq(section, XML_CIB_TAG_NODES)) { if (node_uuid == NULL) { return -EINVAL; } if (safe_str_eq(node_type, "remote")) { xml_top = create_xml_node(xml_obj, XML_CIB_TAG_NODES); xml_obj = create_xml_node(xml_top, XML_CIB_TAG_NODE); crm_xml_add(xml_obj, XML_ATTR_TYPE, "remote"); crm_xml_add(xml_obj, XML_ATTR_ID, node_uuid); crm_xml_add(xml_obj, XML_ATTR_UNAME, node_uuid); } else { tag = XML_CIB_TAG_NODE; } } else if (safe_str_eq(section, XML_CIB_TAG_STATUS)) { tag = XML_TAG_TRANSIENT_NODEATTRS; if (node_uuid == NULL) { return -EINVAL; } xml_top = create_xml_node(xml_obj, XML_CIB_TAG_STATE); crm_xml_add(xml_top, XML_ATTR_ID, node_uuid); xml_obj = xml_top; } else { tag = section; node_uuid = NULL; } if (set_name == NULL) { if (safe_str_eq(section, XML_CIB_TAG_CRMCONFIG)) { local_set_name = strdup(CIB_OPTIONS_FIRST); } else if (safe_str_eq(node_type, XML_CIB_TAG_TICKETS)) { local_set_name = crm_concat(section, XML_CIB_TAG_TICKETS, '-'); } else if (node_uuid) { local_set_name = crm_concat(section, node_uuid, '-'); if (set_type) { char *tmp_set_name = local_set_name; local_set_name = crm_concat(tmp_set_name, set_type, '-'); free(tmp_set_name); } } else { local_set_name = crm_concat(section, "options", '-'); } set_name = local_set_name; } if (attr_id == NULL) { int lpc = 0; local_attr_id = crm_concat(set_name, attr_name, '-'); attr_id = local_attr_id; /* Minimal attempt at sanitizing automatic IDs */ for (lpc = 0; local_attr_id[lpc] != 0; lpc++) { switch (local_attr_id[lpc]) { case ':': local_attr_id[lpc] = '.'; } } } else if (attr_name == NULL) { attr_name = attr_id; } crm_trace("Creating %s/%s", section, tag); if (tag != NULL) { xml_obj = create_xml_node(xml_obj, tag); crm_xml_add(xml_obj, XML_ATTR_ID, node_uuid); if (xml_top == NULL) { xml_top = xml_obj; } } if (node_uuid == NULL && safe_str_neq(node_type, XML_CIB_TAG_TICKETS)) { if (safe_str_eq(section, XML_CIB_TAG_CRMCONFIG)) { xml_obj = create_xml_node(xml_obj, XML_CIB_TAG_PROPSET); } else { xml_obj = create_xml_node(xml_obj, XML_TAG_META_SETS); } } else if (set_type) { xml_obj = create_xml_node(xml_obj, set_type); } else { xml_obj = create_xml_node(xml_obj, XML_TAG_ATTR_SETS); } crm_xml_add(xml_obj, XML_ATTR_ID, set_name); if (xml_top == NULL) { xml_top = xml_obj; } } do_modify: xml_obj = create_xml_node(xml_obj, XML_CIB_TAG_NVPAIR); if (xml_top == NULL) { xml_top = xml_obj; } crm_xml_add(xml_obj, XML_ATTR_ID, attr_id); crm_xml_add(xml_obj, XML_NVPAIR_ATTR_NAME, attr_name); crm_xml_add(xml_obj, XML_NVPAIR_ATTR_VALUE, attr_value); crm_log_xml_trace(xml_top, "update_attr"); rc = cib_internal_op(the_cib, CIB_OP_MODIFY, NULL, section, xml_top, NULL, call_options | cib_quorum_override, user_name); if (rc < pcmk_ok) { attr_msg(LOG_ERR, "Error setting %s=%s (section=%s, set=%s): %s", attr_name, attr_value, section, crm_str(set_name), pcmk_strerror(rc)); crm_log_xml_info(xml_top, "Update"); } free(local_set_name); free(local_attr_id); free_xml(xml_top); return rc; } int read_attr_delegate(cib_t * the_cib, const char *section, const char *node_uuid, const char *set_type, const char *set_name, const char *attr_id, const char *attr_name, char **attr_value, gboolean to_console, const char *user_name) { int rc = pcmk_ok; CRM_ASSERT(attr_value != NULL); CRM_CHECK(section != NULL, return -EINVAL); CRM_CHECK(attr_name != NULL || attr_id != NULL, return -EINVAL); *attr_value = NULL; rc = find_nvpair_attr_delegate(the_cib, XML_NVPAIR_ATTR_VALUE, section, node_uuid, set_type, set_name, attr_id, attr_name, to_console, attr_value, user_name); if (rc != pcmk_ok) { crm_trace("Query failed for attribute %s (section=%s, node=%s, set=%s): %s", attr_name, section, crm_str(set_name), crm_str(node_uuid), pcmk_strerror(rc)); } return rc; } int delete_attr_delegate(cib_t * the_cib, int options, const char *section, const char *node_uuid, const char *set_type, const char *set_name, const char *attr_id, const char *attr_name, const char *attr_value, gboolean to_console, const char *user_name) { int rc = pcmk_ok; xmlNode *xml_obj = NULL; char *local_attr_id = NULL; CRM_CHECK(section != NULL, return -EINVAL); CRM_CHECK(attr_name != NULL || attr_id != NULL, return -EINVAL); if (attr_id == NULL) { rc = find_nvpair_attr_delegate(the_cib, XML_ATTR_ID, section, node_uuid, set_type, set_name, attr_id, attr_name, to_console, &local_attr_id, user_name); if (rc != pcmk_ok) { return rc; } attr_id = local_attr_id; } xml_obj = create_xml_node(NULL, XML_CIB_TAG_NVPAIR); crm_xml_add(xml_obj, XML_ATTR_ID, attr_id); crm_xml_add(xml_obj, XML_NVPAIR_ATTR_NAME, attr_name); crm_xml_add(xml_obj, XML_NVPAIR_ATTR_VALUE, attr_value); rc = cib_internal_op(the_cib, CIB_OP_DELETE, NULL, section, xml_obj, NULL, options | cib_quorum_override, user_name); if (rc == pcmk_ok) { attr_msg(LOG_DEBUG, "Deleted %s %s: id=%s%s%s%s%s\n", section, node_uuid ? "attribute" : "option", local_attr_id, set_name ? " set=" : "", set_name ? set_name : "", attr_name ? " name=" : "", attr_name ? attr_name : ""); } free(local_attr_id); free_xml(xml_obj); return rc; } static gboolean found_remote_node_xpath(cib_t *the_cib, const char *xpath) { int rc = pcmk_ok; xmlNode *xml_search = NULL; rc = cib_internal_op(the_cib, CIB_OP_QUERY, NULL, xpath, NULL, &xml_search, cib_sync_call | cib_scope_local | cib_xpath, NULL); free(xml_search); return rc == pcmk_ok ? TRUE : FALSE; } static int get_remote_node_uuid(cib_t * the_cib, const char *uname, char **uuid) { #define CONTAINER_REMOTE_NODE_XPATH "//" XML_CIB_TAG_NVPAIR \ "[@name='" XML_RSC_ATTR_REMOTE_NODE "'][@value='%s']" #define BAREMETAL_REMOTE_NODE_XPATH "//" XML_CIB_TAG_RESOURCE "[@type='remote'][@provider='pacemaker'][@id='%s']" #define ORPHAN_REMOTE_NODE_XPATH \ "//" XML_CIB_TAG_STATUS "//" XML_CIB_TAG_STATE \ "[@" XML_ATTR_UUID "='%s'][@" XML_NODE_IS_REMOTE "='true']" int len = 128 + strlen(uname); int rc = pcmk_ok; char *xpath_string = calloc(1, len); sprintf(xpath_string, CONTAINER_REMOTE_NODE_XPATH, uname); if (found_remote_node_xpath(the_cib, xpath_string)) { goto found_remote; } sprintf(xpath_string, BAREMETAL_REMOTE_NODE_XPATH, uname); if (found_remote_node_xpath(the_cib, xpath_string)) { goto found_remote; } sprintf(xpath_string, ORPHAN_REMOTE_NODE_XPATH, uname); if (found_remote_node_xpath(the_cib, xpath_string)) { goto found_remote; } rc = -1; found_remote: if (rc == pcmk_ok) { /* reuse allocation */ *uuid = xpath_string; strcpy(*uuid, uname); } else { *uuid = NULL; free(xpath_string); } return rc; } static int get_cluster_node_uuid(cib_t * the_cib, const char *uname, char **uuid) { int rc = pcmk_ok; xmlNode *a_child = NULL; xmlNode *xml_obj = NULL; xmlNode *fragment = NULL; const char *child_name = NULL; rc = the_cib->cmds->query(the_cib, XML_CIB_TAG_NODES, &fragment, cib_sync_call | cib_scope_local); if (rc != pcmk_ok) { return rc; } xml_obj = fragment; CRM_CHECK(safe_str_eq(crm_element_name(xml_obj), XML_CIB_TAG_NODES), return -ENOMSG); CRM_ASSERT(xml_obj != NULL); crm_log_xml_debug(xml_obj, "Result section"); rc = -ENXIO; *uuid = NULL; for (a_child = __xml_first_child(xml_obj); a_child != NULL; a_child = __xml_next(a_child)) { if (crm_str_eq((const char *)a_child->name, XML_CIB_TAG_NODE, TRUE)) { const char *node_type = crm_element_value(a_child, XML_ATTR_TYPE); /* Only if it's a cluster node */ if (safe_str_eq(node_type, "remote")) { continue; } child_name = crm_element_value(a_child, XML_ATTR_UNAME); if (safe_str_eq(uname, child_name)) { child_name = ID(a_child); if (child_name != NULL) { *uuid = strdup(child_name); rc = pcmk_ok; } break; } } } free_xml(fragment); return rc; } int query_node_uuid(cib_t * the_cib, const char *uname, char **uuid, int *is_remote_node) { int rc = pcmk_ok; CRM_ASSERT(uname != NULL); CRM_ASSERT(uuid != NULL); if (is_remote_node) { *is_remote_node = FALSE; } rc = get_cluster_node_uuid(the_cib, uname, uuid); if (rc != pcmk_ok) { crm_debug("%s is not a cluster node, checking to see if remote-node", uname); rc = get_remote_node_uuid(the_cib, uname, uuid); if (rc != pcmk_ok) { crm_debug("%s is not a remote node either", uname); } else if (is_remote_node) { *is_remote_node = TRUE; } } if (rc != pcmk_ok) { crm_debug("Could not map name=%s to a UUID: %s\n", uname, pcmk_strerror(rc)); } else { crm_info("Mapped %s to %s", uname, *uuid); } return rc; } int query_node_uname(cib_t * the_cib, const char *uuid, char **uname) { int rc = pcmk_ok; xmlNode *a_child = NULL; xmlNode *xml_obj = NULL; xmlNode *fragment = NULL; const char *child_name = NULL; CRM_ASSERT(uname != NULL); CRM_ASSERT(uuid != NULL); rc = the_cib->cmds->query(the_cib, XML_CIB_TAG_NODES, &fragment, cib_sync_call | cib_scope_local); if (rc != pcmk_ok) { return rc; } xml_obj = fragment; CRM_CHECK(safe_str_eq(crm_element_name(xml_obj), XML_CIB_TAG_NODES), return -ENOMSG); CRM_ASSERT(xml_obj != NULL); crm_log_xml_trace(xml_obj, "Result section"); rc = -ENXIO; *uname = NULL; for (a_child = __xml_first_child(xml_obj); a_child != NULL; a_child = __xml_next(a_child)) { if (crm_str_eq((const char *)a_child->name, XML_CIB_TAG_NODE, TRUE)) { child_name = ID(a_child); if (safe_str_eq(uuid, child_name)) { child_name = crm_element_value(a_child, XML_ATTR_UNAME); if (child_name != NULL) { *uname = strdup(child_name); rc = pcmk_ok; } break; } } } free_xml(fragment); return rc; } int set_standby(cib_t * the_cib, const char *uuid, const char *scope, const char *standby_value) { int rc = pcmk_ok; char *attr_id = NULL; CRM_CHECK(uuid != NULL, return -EINVAL); CRM_CHECK(standby_value != NULL, return -EINVAL); if (safe_str_eq(scope, "reboot") || safe_str_eq(scope, XML_CIB_TAG_STATUS)) { scope = XML_CIB_TAG_STATUS; attr_id = crm_strdup_printf("transient-standby-%.256s", uuid); } else { scope = XML_CIB_TAG_NODES; attr_id = crm_strdup_printf("standby-%.256s", uuid); } rc = update_attr_delegate(the_cib, cib_sync_call, scope, uuid, NULL, NULL, attr_id, "standby", standby_value, TRUE, NULL, NULL); free(attr_id); return rc; } diff --git a/lib/fencing/st_client.c b/lib/fencing/st_client.c index 6d4dce1347..e1eda352a0 100644 --- a/lib/fencing/st_client.c +++ b/lib/fencing/st_client.c @@ -1,2689 +1,2693 @@ /* * Copyright (c) 2004 Andrew Beekhof * * 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 #include #include #include #include #include #include #include #include #include #include #include #include /* Add it for compiling on OSX */ #include #include #include #include #include #ifdef HAVE_STONITH_STONITH_H # include # define LHA_STONITH_LIBRARY "libstonith.so.1" static void *lha_agents_lib = NULL; #endif #include CRM_TRACE_INIT_DATA(stonith); struct stonith_action_s { /*! user defined data */ char *agent; char *action; char *victim; char *args; int timeout; int async; void *userdata; void (*done_cb) (GPid pid, gint status, const char *output, gpointer user_data); /*! internal async track data */ int fd_stdout; int fd_stderr; int last_timeout_signo; /*! internal timing information */ time_t initial_start_time; int tries; int remaining_timeout; guint timer_sigterm; guint timer_sigkill; int max_retries; /* device output data */ GPid pid; int rc; char *output; char *error; }; typedef struct stonith_private_s { char *token; crm_ipc_t *ipc; mainloop_io_t *source; GHashTable *stonith_op_callback_table; GList *notify_list; void (*op_callback) (stonith_t * st, stonith_callback_data_t * data); } stonith_private_t; typedef struct stonith_notify_client_s { const char *event; const char *obj_id; /* implement one day */ const char *obj_type; /* implement one day */ void (*notify) (stonith_t * st, stonith_event_t * e); } stonith_notify_client_t; typedef struct stonith_callback_client_s { void (*callback) (stonith_t * st, stonith_callback_data_t * data); const char *id; void *user_data; gboolean only_success; gboolean allow_timeout_updates; struct timer_rec_s *timer; } stonith_callback_client_t; struct notify_blob_s { stonith_t *stonith; xmlNode *xml; }; struct timer_rec_s { int call_id; int timeout; guint ref; stonith_t *stonith; }; typedef int (*stonith_op_t) (const char *, int, const char *, xmlNode *, xmlNode *, xmlNode *, xmlNode **, xmlNode **); #if HAVE_STONITH_STONITH_H static const char META_TEMPLATE[] = "\n" "\n" "\n" " 1.0\n" " \n" "%s\n" " \n" " %s\n" "%s\n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " 2.0\n" " \n" "\n"; #endif bool stonith_dispatch(stonith_t * st); int stonith_dispatch_internal(const char *buffer, ssize_t length, gpointer userdata); void stonith_perform_callback(stonith_t * stonith, xmlNode * msg, int call_id, int rc); xmlNode *stonith_create_op(int call_id, const char *token, const char *op, xmlNode * data, int call_options); int stonith_send_command(stonith_t * stonith, const char *op, xmlNode * data, xmlNode ** output_data, int call_options, int timeout); static void stonith_connection_destroy(gpointer user_data); static void stonith_send_notification(gpointer data, gpointer user_data); static int internal_stonith_action_execute(stonith_action_t * action); static void log_action(stonith_action_t *action, pid_t pid); static void log_action(stonith_action_t *action, pid_t pid) { if (action->output) { /* Logging the whole string confuses syslog when the string is xml */ char *prefix = crm_strdup_printf("%s[%d] stdout:", action->agent, pid); crm_log_output(LOG_TRACE, prefix, action->output); free(prefix); } if (action->error) { /* Logging the whole string confuses syslog when the string is xml */ char *prefix = crm_strdup_printf("%s[%d] stderr:", action->agent, pid); crm_log_output(LOG_WARNING, prefix, action->error); free(prefix); } } static void stonith_connection_destroy(gpointer user_data) { stonith_t *stonith = user_data; stonith_private_t *native = NULL; struct notify_blob_s blob; crm_trace("Sending destroyed notification"); blob.stonith = stonith; blob.xml = create_xml_node(NULL, "notify"); native = stonith->private; native->ipc = NULL; native->source = NULL; stonith->state = stonith_disconnected; crm_xml_add(blob.xml, F_TYPE, T_STONITH_NOTIFY); crm_xml_add(blob.xml, F_SUBTYPE, T_STONITH_NOTIFY_DISCONNECT); g_list_foreach(native->notify_list, stonith_send_notification, &blob); free_xml(blob.xml); } xmlNode * create_device_registration_xml(const char *id, const char *namespace, const char *agent, stonith_key_value_t * params, const char *rsc_provides) { xmlNode *data = create_xml_node(NULL, F_STONITH_DEVICE); xmlNode *args = create_xml_node(data, XML_TAG_ATTRS); #if HAVE_STONITH_STONITH_H namespace = get_stonith_provider(agent, namespace); if (safe_str_eq(namespace, "heartbeat")) { hash2field((gpointer) "plugin", (gpointer) agent, args); agent = "fence_legacy"; } #endif crm_xml_add(data, XML_ATTR_ID, id); crm_xml_add(data, F_STONITH_ORIGIN, __FUNCTION__); crm_xml_add(data, "agent", agent); crm_xml_add(data, "namespace", namespace); if (rsc_provides) { crm_xml_add(data, "rsc_provides", rsc_provides); } for (; params; params = params->next) { hash2field((gpointer) params->key, (gpointer) params->value, args); } return data; } static int stonith_api_register_device(stonith_t * st, int call_options, const char *id, const char *namespace, const char *agent, stonith_key_value_t * params) { int rc = 0; xmlNode *data = NULL; data = create_device_registration_xml(id, namespace, agent, params, NULL); rc = stonith_send_command(st, STONITH_OP_DEVICE_ADD, data, NULL, call_options, 0); free_xml(data); return rc; } static int stonith_api_remove_device(stonith_t * st, int call_options, const char *name) { int rc = 0; xmlNode *data = NULL; data = create_xml_node(NULL, F_STONITH_DEVICE); crm_xml_add(data, F_STONITH_ORIGIN, __FUNCTION__); crm_xml_add(data, XML_ATTR_ID, name); rc = stonith_send_command(st, STONITH_OP_DEVICE_DEL, data, NULL, call_options, 0); free_xml(data); return rc; } static int stonith_api_remove_level_full(stonith_t *st, int options, const char *node, const char *pattern, const char *attr, const char *value, int level) { int rc = 0; xmlNode *data = NULL; CRM_CHECK(node || pattern || (attr && value), return -EINVAL); data = create_xml_node(NULL, XML_TAG_FENCING_LEVEL); crm_xml_add(data, F_STONITH_ORIGIN, __FUNCTION__); if (node) { crm_xml_add(data, XML_ATTR_STONITH_TARGET, node); } else if (pattern) { crm_xml_add(data, XML_ATTR_STONITH_TARGET_PATTERN, pattern); } else { crm_xml_add(data, XML_ATTR_STONITH_TARGET_ATTRIBUTE, attr); crm_xml_add(data, XML_ATTR_STONITH_TARGET_VALUE, value); } crm_xml_add_int(data, XML_ATTR_STONITH_INDEX, level); rc = stonith_send_command(st, STONITH_OP_LEVEL_DEL, data, NULL, options, 0); free_xml(data); return rc; } static int stonith_api_remove_level(stonith_t * st, int options, const char *node, int level) { return stonith_api_remove_level_full(st, options, node, NULL, NULL, NULL, level); } /*! * \internal * \brief Create XML for stonithd topology level registration request * * \param[in] node If not NULL, target level by this node name * \param[in] pattern If not NULL, target by node name using this regex * \param[in] attr If not NULL, target by this node attribute * \param[in] value If not NULL, target by this node attribute value * \param[in] level Index number of level to register * \param[in] device_list List of devices in level * * \return Newly allocated XML tree on success, NULL otherwise * * \note The caller should set only one of node, pattern or attr/value. */ xmlNode * create_level_registration_xml(const char *node, const char *pattern, const char *attr, const char *value, int level, stonith_key_value_t *device_list) { int len = 0; char *list = NULL; xmlNode *data; CRM_CHECK(node || pattern || (attr && value), return NULL); data = create_xml_node(NULL, XML_TAG_FENCING_LEVEL); CRM_CHECK(data, return NULL); crm_xml_add(data, F_STONITH_ORIGIN, __FUNCTION__); crm_xml_add_int(data, XML_ATTR_ID, level); crm_xml_add_int(data, XML_ATTR_STONITH_INDEX, level); if (node) { crm_xml_add(data, XML_ATTR_STONITH_TARGET, node); } else if (pattern) { crm_xml_add(data, XML_ATTR_STONITH_TARGET_PATTERN, pattern); } else { crm_xml_add(data, XML_ATTR_STONITH_TARGET_ATTRIBUTE, attr); crm_xml_add(data, XML_ATTR_STONITH_TARGET_VALUE, value); } for (; device_list; device_list = device_list->next) { int adding = strlen(device_list->value); if(list) { adding++; /* +1 space */ } crm_trace("Adding %s (%dc) at offset %d", device_list->value, adding, len); list = realloc_safe(list, len + adding + 1); /* +1 EOS */ - CRM_CHECK(list != NULL, free_xml(data); return NULL); + if (list == NULL) { + crm_perror(LOG_CRIT, "Could not create device list"); + free_xml(data); + return NULL; + } sprintf(list + len, "%s%s", len?",":"", device_list->value); len += adding; } crm_xml_add(data, XML_ATTR_STONITH_DEVICES, list); free(list); return data; } static int stonith_api_register_level_full(stonith_t * st, int options, const char *node, const char *pattern, const char *attr, const char *value, int level, stonith_key_value_t *device_list) { int rc = 0; xmlNode *data = create_level_registration_xml(node, pattern, attr, value, level, device_list); CRM_CHECK(data != NULL, return -EINVAL); rc = stonith_send_command(st, STONITH_OP_LEVEL_ADD, data, NULL, options, 0); free_xml(data); return rc; } static int stonith_api_register_level(stonith_t * st, int options, const char *node, int level, stonith_key_value_t * device_list) { return stonith_api_register_level_full(st, options, node, NULL, NULL, NULL, level, device_list); } static void append_arg(gpointer key, gpointer value, gpointer user_data) { int len = 3; /* =, \n, \0 */ int last = 0; char **args = user_data; CRM_CHECK(key != NULL, return); CRM_CHECK(value != NULL, return); if (strstr(key, "pcmk_")) { return; } else if (strstr(key, CRM_META)) { return; } else if (safe_str_eq(key, "crm_feature_set")) { return; } len += strlen(key); len += strlen(value); if (*args != NULL) { last = strlen(*args); } *args = realloc_safe(*args, last + len); crm_trace("Appending: %s=%s", (char *)key, (char *)value); sprintf((*args) + last, "%s=%s\n", (char *)key, (char *)value); } static void append_const_arg(const char *key, const char *value, char **arg_list) { CRM_LOG_ASSERT(key && value); if(key && value) { char *glib_sucks_key = strdup(key); char *glib_sucks_value = strdup(value); append_arg(glib_sucks_key, glib_sucks_value, arg_list); free(glib_sucks_value); free(glib_sucks_key); } } static void append_host_specific_args(const char *victim, const char *map, GHashTable * params, char **arg_list) { char *name = NULL; int last = 0, lpc = 0, max = 0; if (map == NULL) { /* The best default there is for now... */ crm_debug("Using default arg map: port=uname"); append_const_arg("port", victim, arg_list); return; } max = strlen(map); crm_debug("Processing arg map: %s", map); for (; lpc < max + 1; lpc++) { if (isalpha(map[lpc])) { /* keep going */ } else if (map[lpc] == '=' || map[lpc] == ':') { free(name); name = calloc(1, 1 + lpc - last); memcpy(name, map + last, lpc - last); crm_debug("Got name: %s", name); last = lpc + 1; } else if (map[lpc] == 0 || map[lpc] == ',' || isspace(map[lpc])) { char *param = NULL; const char *value = NULL; param = calloc(1, 1 + lpc - last); memcpy(param, map + last, lpc - last); last = lpc + 1; crm_debug("Got key: %s", param); if (name == NULL) { crm_err("Misparsed '%s', found '%s' without a name", map, param); free(param); continue; } if (safe_str_eq(param, "uname")) { value = victim; } else { char *key = crm_meta_name(param); value = g_hash_table_lookup(params, key); free(key); } if (value) { crm_debug("Setting '%s'='%s' (%s) for %s", name, value, param, victim); append_const_arg(name, value, arg_list); } else { crm_err("No node attribute '%s' for '%s'", name, victim); } free(name); name = NULL; free(param); if (map[lpc] == 0) { break; } } else if (isspace(map[lpc])) { last = lpc; } } free(name); } static char * make_args(const char *agent, const char *action, const char *victim, uint32_t victim_nodeid, GHashTable * device_args, GHashTable * port_map) { char buffer[512]; char *arg_list = NULL; const char *value = NULL; const char *_action = action; CRM_CHECK(action != NULL, return NULL); buffer[511] = 0; snprintf(buffer, 511, "pcmk_%s_action", action); if (device_args) { value = g_hash_table_lookup(device_args, buffer); } if (value == NULL && device_args) { /* Legacy support for early 1.1 releases - Remove for 1.4 */ snprintf(buffer, 511, "pcmk_%s_cmd", action); value = g_hash_table_lookup(device_args, buffer); } if (value == NULL && device_args && safe_str_eq(action, "off")) { /* Legacy support for late 1.1 releases - Remove for 1.4 */ value = g_hash_table_lookup(device_args, "pcmk_poweroff_action"); } if (value) { crm_info("Substituting action '%s' for requested operation '%s'", value, action); action = value; } append_const_arg(STONITH_ATTR_ACTION_OP, action, &arg_list); if (victim && device_args) { const char *alias = victim; const char *param = g_hash_table_lookup(device_args, STONITH_ATTR_HOSTARG); if (port_map && g_hash_table_lookup(port_map, victim)) { alias = g_hash_table_lookup(port_map, victim); } /* Always supply the node's name too: * https://fedorahosted.org/cluster/wiki/FenceAgentAPI */ append_const_arg("nodename", victim, &arg_list); if (victim_nodeid) { char nodeid_str[33] = { 0, }; if (snprintf(nodeid_str, 33, "%u", (unsigned int)victim_nodeid)) { crm_info("For stonith action (%s) for victim %s, adding nodeid (%d) to parameters", action, victim, nodeid_str); append_const_arg("nodeid", nodeid_str, &arg_list); } } /* Check if we need to supply the victim in any other form */ if(safe_str_eq(agent, "fence_legacy")) { value = agent; } else if (param == NULL) { const char *map = g_hash_table_lookup(device_args, STONITH_ATTR_ARGMAP); if (map == NULL) { param = "port"; value = g_hash_table_lookup(device_args, param); } else { /* Legacy handling */ append_host_specific_args(alias, map, device_args, &arg_list); value = map; /* Nothing more to do */ } } else if (safe_str_eq(param, "none")) { value = param; /* Nothing more to do */ } else { value = g_hash_table_lookup(device_args, param); } /* Don't overwrite explictly set values for $param */ if (value == NULL || safe_str_eq(value, "dynamic")) { crm_debug("Performing %s action for node '%s' as '%s=%s'", action, victim, param, alias); append_const_arg(param, alias, &arg_list); } } if (device_args) { g_hash_table_foreach(device_args, append_arg, &arg_list); } if(device_args && g_hash_table_lookup(device_args, STONITH_ATTR_ACTION_OP)) { if(safe_str_eq(_action,"list") || safe_str_eq(_action,"status") || safe_str_eq(_action,"monitor") || safe_str_eq(_action,"metadata")) { /* Force use of the calculated command for support ops * We don't want list or monitor ops initiating fencing, regardless of what the admin configured */ append_const_arg(STONITH_ATTR_ACTION_OP, action, &arg_list); } } return arg_list; } static gboolean st_child_term(gpointer data) { int rc = 0; stonith_action_t *track = data; crm_info("Child %d timed out, sending SIGTERM", track->pid); track->timer_sigterm = 0; track->last_timeout_signo = SIGTERM; rc = kill(-track->pid, SIGTERM); if (rc < 0) { crm_perror(LOG_ERR, "Couldn't send SIGTERM to %d", track->pid); } return FALSE; } static gboolean st_child_kill(gpointer data) { int rc = 0; stonith_action_t *track = data; crm_info("Child %d timed out, sending SIGKILL", track->pid); track->timer_sigkill = 0; track->last_timeout_signo = SIGKILL; rc = kill(-track->pid, SIGKILL); if (rc < 0) { crm_perror(LOG_ERR, "Couldn't send SIGKILL to %d", track->pid); } return FALSE; } static void stonith_action_clear_tracking_data(stonith_action_t * action) { if (action->timer_sigterm > 0) { g_source_remove(action->timer_sigterm); action->timer_sigterm = 0; } if (action->timer_sigkill > 0) { g_source_remove(action->timer_sigkill); action->timer_sigkill = 0; } if (action->fd_stdout) { close(action->fd_stdout); action->fd_stdout = 0; } if (action->fd_stderr) { close(action->fd_stderr); action->fd_stderr = 0; } free(action->output); action->output = NULL; free(action->error); action->error = NULL; action->rc = 0; action->pid = 0; action->last_timeout_signo = 0; } static void stonith_action_destroy(stonith_action_t * action) { stonith_action_clear_tracking_data(action); free(action->agent); free(action->args); free(action->action); free(action->victim); free(action); } #define FAILURE_MAX_RETRIES 2 stonith_action_t * stonith_action_create(const char *agent, const char *_action, const char *victim, uint32_t victim_nodeid, int timeout, GHashTable * device_args, GHashTable * port_map) { stonith_action_t *action; action = calloc(1, sizeof(stonith_action_t)); crm_debug("Initiating action %s for agent %s (target=%s)", _action, agent, victim); action->args = make_args(agent, _action, victim, victim_nodeid, device_args, port_map); action->agent = strdup(agent); action->action = strdup(_action); if (victim) { action->victim = strdup(victim); } action->timeout = action->remaining_timeout = timeout; action->max_retries = FAILURE_MAX_RETRIES; if (device_args) { char buffer[512]; const char *value = NULL; snprintf(buffer, 511, "pcmk_%s_retries", _action); value = g_hash_table_lookup(device_args, buffer); if (value) { action->max_retries = atoi(value); } } return action; } #define READ_MAX 500 static char * read_output(int fd) { char buffer[READ_MAX]; char *output = NULL; int len = 0; int more = 0; if (!fd) { return NULL; } do { errno = 0; memset(&buffer, 0, READ_MAX); more = read(fd, buffer, READ_MAX - 1); if (more > 0) { buffer[more] = 0; /* Make sure it's nul-terminated for logging * 'more' is always less than our buffer size */ output = realloc_safe(output, len + more + 1); snprintf(output + len, more + 1, "%s", buffer); len += more; } } while (more == (READ_MAX - 1) || (more < 0 && errno == EINTR)); return output; } static gboolean update_remaining_timeout(stonith_action_t * action) { int diff = time(NULL) - action->initial_start_time; if (action->tries >= action->max_retries) { crm_info("Attempted to execute agent %s (%s) the maximum number of times (%d) allowed", action->agent, action->action, action->max_retries); action->remaining_timeout = 0; } else if ((action->rc != -ETIME) && diff < (action->timeout * 0.7)) { /* only set remaining timeout period if there is 30% * or greater of the original timeout period left */ action->remaining_timeout = action->timeout - diff; } else { action->remaining_timeout = 0; } return action->remaining_timeout ? TRUE : FALSE; } static void stonith_action_async_done(mainloop_child_t * p, pid_t pid, int core, int signo, int exitcode) { stonith_action_t *action = mainloop_child_userdata(p); if (action->timer_sigterm > 0) { g_source_remove(action->timer_sigterm); action->timer_sigterm = 0; } if (action->timer_sigkill > 0) { g_source_remove(action->timer_sigkill); action->timer_sigkill = 0; } action->output = read_output(action->fd_stdout); action->error = read_output(action->fd_stderr); if (action->last_timeout_signo) { action->rc = -ETIME; crm_notice("Child process %d performing action '%s' timed out with signal %d", pid, action->action, action->last_timeout_signo); } else if (signo) { action->rc = -ECONNABORTED; crm_notice("Child process %d performing action '%s' timed out with signal %d", pid, action->action, signo); } else { crm_debug("Child process %d performing action '%s' exited with rc %d", pid, action->action, exitcode); if (exitcode > 0) { /* Try to provide a useful error code based on the fence agent's * error output. */ if (action->error == NULL) { exitcode = -ENODATA; } else if (strstr(action->error, "imed out")) { /* Some agents have their own internal timeouts */ exitcode = -ETIMEDOUT; } else if (strstr(action->error, "Unrecognised action")) { exitcode = -EOPNOTSUPP; } else { exitcode = -pcmk_err_generic; } } action->rc = exitcode; } log_action(action, pid); if (action->rc != pcmk_ok && update_remaining_timeout(action)) { int rc = internal_stonith_action_execute(action); if (rc == pcmk_ok) { return; } } if (action->done_cb) { action->done_cb(pid, action->rc, action->output, action->userdata); } stonith_action_destroy(action); } static int internal_stonith_action_execute(stonith_action_t * action) { int pid, status = 0, len, rc = -EPROTO; int ret; int total = 0; int p_read_fd, p_write_fd; /* parent read/write file descriptors */ int c_read_fd, c_write_fd; /* child read/write file descriptors */ int c_stderr_fd, p_stderr_fd; /* parent/child side file descriptors for stderr */ int fd1[2]; int fd2[2]; int fd3[2]; int is_retry = 0; /* clear any previous tracking data */ stonith_action_clear_tracking_data(action); if (!action->tries) { action->initial_start_time = time(NULL); } action->tries++; if (action->tries > 1) { crm_info("Attempt %d to execute %s (%s). remaining timeout is %d", action->tries, action->agent, action->action, action->remaining_timeout); is_retry = 1; } c_read_fd = c_write_fd = p_read_fd = p_write_fd = c_stderr_fd = p_stderr_fd = -1; if (action->args == NULL || action->agent == NULL) goto fail; len = strlen(action->args); if (pipe(fd1)) goto fail; p_read_fd = fd1[0]; c_write_fd = fd1[1]; if (pipe(fd2)) goto fail; c_read_fd = fd2[0]; p_write_fd = fd2[1]; if (pipe(fd3)) goto fail; p_stderr_fd = fd3[0]; c_stderr_fd = fd3[1]; crm_debug("forking"); pid = fork(); if (pid < 0) { rc = -ECHILD; goto fail; } if (!pid) { /* child */ setpgid(0, 0); close(1); /* coverity[leaked_handle] False positive */ if (dup(c_write_fd) < 0) goto fail; close(2); /* coverity[leaked_handle] False positive */ if (dup(c_stderr_fd) < 0) goto fail; close(0); /* coverity[leaked_handle] False positive */ if (dup(c_read_fd) < 0) goto fail; /* keep c_stderr_fd open so parent can report all errors. */ /* keep c_write_fd open so hostlist can be sent to parent. */ close(c_read_fd); close(p_read_fd); close(p_write_fd); close(p_stderr_fd); /* keep retries from executing out of control */ if (is_retry) { sleep(1); } execlp(action->agent, action->agent, NULL); exit(EXIT_FAILURE); } /* parent */ action->pid = pid; ret = fcntl(p_read_fd, F_SETFL, fcntl(p_read_fd, F_GETFL, 0) | O_NONBLOCK); if (ret < 0) { crm_perror(LOG_NOTICE, "Could not change the output of %s to be non-blocking", action->agent); } ret = fcntl(p_stderr_fd, F_SETFL, fcntl(p_stderr_fd, F_GETFL, 0) | O_NONBLOCK); if (ret < 0) { crm_perror(LOG_NOTICE, "Could not change the stderr of %s to be non-blocking", action->agent); } do { crm_debug("sending args"); ret = write(p_write_fd, action->args + total, len - total); if (ret > 0) { total += ret; } } while (errno == EINTR && total < len); if (total != len) { crm_perror(LOG_ERR, "Sent %d not %d bytes", total, len); if (ret >= 0) { rc = -ECOMM; } goto fail; } close(p_write_fd); p_write_fd = -1; /* async */ if (action->async) { action->fd_stdout = p_read_fd; action->fd_stderr = p_stderr_fd; mainloop_child_add(pid, 0/* Move the timeout here? */, action->action, action, stonith_action_async_done); crm_trace("Op: %s on %s, pid: %d, timeout: %ds", action->action, action->agent, pid, action->remaining_timeout); action->last_timeout_signo = 0; if (action->remaining_timeout) { action->timer_sigterm = g_timeout_add(1000 * action->remaining_timeout, st_child_term, action); action->timer_sigkill = g_timeout_add(1000 * (action->remaining_timeout + 5), st_child_kill, action); } else { crm_err("No timeout set for stonith operation %s with device %s", action->action, action->agent); } close(c_write_fd); close(c_read_fd); close(c_stderr_fd); return 0; } else { /* sync */ int timeout = action->remaining_timeout + 1; pid_t p = 0; while (action->remaining_timeout < 0 || timeout > 0) { p = waitpid(pid, &status, WNOHANG); if (p > 0) { break; } sleep(1); timeout--; } if (timeout == 0) { int killrc = kill(-pid, SIGKILL); if (killrc && errno != ESRCH) { crm_err("kill(%d, KILL) failed: %s (%d)", pid, pcmk_strerror(errno), errno); } /* * From sigprocmask(2): * It is not possible to block SIGKILL or SIGSTOP. Attempts to do so are silently ignored. * * This makes it safe to skip WNOHANG here */ p = waitpid(pid, &status, 0); } if (p <= 0) { crm_perror(LOG_ERR, "waitpid(%d)", pid); } else if (p != pid) { crm_err("Waited for %d, got %d", pid, p); } action->output = read_output(p_read_fd); action->error = read_output(p_stderr_fd); action->rc = -ECONNABORTED; log_action(action, pid); rc = action->rc; if (timeout == 0) { action->rc = -ETIME; } else if (WIFEXITED(status)) { crm_debug("result = %d", WEXITSTATUS(status)); action->rc = -WEXITSTATUS(status); rc = 0; } else if (WIFSIGNALED(status)) { crm_err("call %s for %s exited due to signal %d", action->action, action->agent, WTERMSIG(status)); } else { crm_err("call %s for %s returned unexpected status %#x", action->action, action->agent, status); } } fail: if (p_read_fd >= 0) { close(p_read_fd); } if (p_write_fd >= 0) { close(p_write_fd); } if (p_stderr_fd >= 0) { close(p_stderr_fd); } if (c_read_fd >= 0) { close(c_read_fd); } if (c_write_fd >= 0) { close(c_write_fd); } if (c_stderr_fd >= 0) { close(c_stderr_fd); } return rc; } GPid stonith_action_execute_async(stonith_action_t * action, void *userdata, void (*done) (GPid pid, int rc, const char *output, gpointer user_data)) { int rc = 0; if (!action) { return -1; } action->userdata = userdata; action->done_cb = done; action->async = 1; rc = internal_stonith_action_execute(action); return rc < 0 ? rc : action->pid; } int stonith_action_execute(stonith_action_t * action, int *agent_result, char **output) { int rc = 0; if (!action) { return -1; } do { rc = internal_stonith_action_execute(action); if (rc == pcmk_ok) { /* success! */ break; } /* keep retrying while we have time left */ } while (update_remaining_timeout(action)); if (rc) { /* error */ return rc; } if (agent_result) { *agent_result = action->rc; } if (output) { *output = action->output; action->output = NULL; /* handed it off, do not free */ } stonith_action_destroy(action); return rc; } static int stonith_api_device_list(stonith_t * stonith, int call_options, const char *namespace, stonith_key_value_t ** devices, int timeout) { int count = 0; if (devices == NULL) { crm_err("Parameter error: stonith_api_device_list"); return -EFAULT; } /* Include Heartbeat agents */ if (namespace == NULL || safe_str_eq("heartbeat", namespace)) { #if HAVE_STONITH_STONITH_H static gboolean need_init = TRUE; char **entry = NULL; char **type_list = NULL; static char **(*type_list_fn) (void) = NULL; static void (*type_free_fn) (char **) = NULL; if (need_init) { need_init = FALSE; type_list_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_types", FALSE); type_free_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_free_hostlist", FALSE); } if (type_list_fn) { type_list = (*type_list_fn) (); } for (entry = type_list; entry != NULL && *entry; ++entry) { crm_trace("Added: %s", *entry); *devices = stonith_key_value_add(*devices, NULL, *entry); count++; } if (type_list && type_free_fn) { (*type_free_fn) (type_list); } #else if (namespace != NULL) { return -EINVAL; /* Heartbeat agents not supported */ } #endif } /* Include Red Hat agents, basically: ls -1 @sbin_dir@/fence_* */ if (namespace == NULL || safe_str_eq("redhat", namespace)) { struct dirent **namelist; int file_num = scandir(RH_STONITH_DIR, &namelist, 0, alphasort); if (file_num > 0) { struct stat prop; char buffer[FILENAME_MAX + 1]; while (file_num--) { if ('.' == namelist[file_num]->d_name[0]) { free(namelist[file_num]); continue; } else if (0 != strncmp(RH_STONITH_PREFIX, namelist[file_num]->d_name, strlen(RH_STONITH_PREFIX))) { free(namelist[file_num]); continue; } snprintf(buffer, FILENAME_MAX, "%s/%s", RH_STONITH_DIR, namelist[file_num]->d_name); if (stat(buffer, &prop) == 0 && S_ISREG(prop.st_mode)) { *devices = stonith_key_value_add(*devices, NULL, namelist[file_num]->d_name); count++; } free(namelist[file_num]); } free(namelist); } } return count; } #if HAVE_STONITH_STONITH_H static inline char * strdup_null(const char *val) { if (val) { return strdup(val); } return NULL; } static void stonith_plugin(int priority, const char *fmt, ...) __attribute__((__format__ (__printf__, 2, 3))); static void stonith_plugin(int priority, const char *format, ...) { int err = errno; va_list ap; int len = 0; char *string = NULL; va_start(ap, format); len = vasprintf (&string, format, ap); CRM_ASSERT(len > 0); do_crm_log_alias(priority, __FILE__, __func__, __LINE__, "%s", string); free(string); errno = err; } #endif static int stonith_api_device_metadata(stonith_t * stonith, int call_options, const char *agent, const char *namespace, char **output, int timeout) { int rc = 0; char *buffer = NULL; const char *provider = get_stonith_provider(agent, namespace); crm_trace("looking up %s/%s metadata", agent, provider); /* By having this in a library, we can access it from stonith_admin * when neither lrmd or stonith-ng are running * Important for the crm shell's validations... */ if (safe_str_eq(provider, "redhat")) { stonith_action_t *action = stonith_action_create(agent, "metadata", NULL, 0, 5, NULL, NULL); int exec_rc = stonith_action_execute(action, &rc, &buffer); xmlNode *xml = NULL; xmlNode *actions = NULL; xmlXPathObject *xpathObj = NULL; if (exec_rc < 0 || rc != 0 || buffer == NULL) { crm_warn("Could not obtain metadata for %s", agent); crm_debug("Query failed: %d %d: %s", exec_rc, rc, crm_str(buffer)); free(buffer); /* Just in case */ return -EINVAL; } xml = string2xml(buffer); if(xml == NULL) { crm_warn("Metadata for %s is invalid", agent); free(buffer); return -EINVAL; } xpathObj = xpath_search(xml, "//actions"); if (numXpathResults(xpathObj) > 0) { actions = getXpathResult(xpathObj, 0); } freeXpathObject(xpathObj); /* Now fudge the metadata so that the start/stop actions appear */ xpathObj = xpath_search(xml, "//action[@name='stop']"); if (numXpathResults(xpathObj) <= 0) { xmlNode *tmp = NULL; tmp = create_xml_node(actions, "action"); crm_xml_add(tmp, "name", "stop"); crm_xml_add(tmp, "timeout", "20s"); tmp = create_xml_node(actions, "action"); crm_xml_add(tmp, "name", "start"); crm_xml_add(tmp, "timeout", "20s"); } freeXpathObject(xpathObj); /* Now fudge the metadata so that the port isn't required in the configuration */ xpathObj = xpath_search(xml, "//parameter[@name='port']"); if (numXpathResults(xpathObj) > 0) { /* We'll fill this in */ xmlNode *tmp = getXpathResult(xpathObj, 0); crm_xml_add(tmp, "required", "0"); } freeXpathObject(xpathObj); free(buffer); buffer = dump_xml_formatted_with_text(xml); free_xml(xml); if (!buffer) { return -EINVAL; } } else { #if !HAVE_STONITH_STONITH_H return -EINVAL; /* Heartbeat agents not supported */ #else int bufferlen = 0; static const char *no_parameter_info = ""; Stonith *stonith_obj = NULL; static gboolean need_init = TRUE; static Stonith *(*st_new_fn) (const char *) = NULL; static const char *(*st_info_fn) (Stonith *, int) = NULL; static void (*st_del_fn) (Stonith *) = NULL; static void (*st_log_fn) (Stonith *, PILLogFun) = NULL; if (need_init) { need_init = FALSE; st_new_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_new", FALSE); st_del_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_delete", FALSE); st_log_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_set_log", FALSE); st_info_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_get_info", FALSE); } if (lha_agents_lib && st_new_fn && st_del_fn && st_info_fn && st_log_fn) { char *xml_meta_longdesc = NULL; char *xml_meta_shortdesc = NULL; char *meta_param = NULL; char *meta_longdesc = NULL; char *meta_shortdesc = NULL; stonith_obj = (*st_new_fn) (agent); if (stonith_obj) { (*st_log_fn) (stonith_obj, (PILLogFun) & stonith_plugin); meta_longdesc = strdup_null((*st_info_fn) (stonith_obj, ST_DEVICEDESCR)); if (meta_longdesc == NULL) { crm_warn("no long description in %s's metadata.", agent); meta_longdesc = strdup(no_parameter_info); } meta_shortdesc = strdup_null((*st_info_fn) (stonith_obj, ST_DEVICEID)); if (meta_shortdesc == NULL) { crm_warn("no short description in %s's metadata.", agent); meta_shortdesc = strdup(no_parameter_info); } meta_param = strdup_null((*st_info_fn) (stonith_obj, ST_CONF_XML)); if (meta_param == NULL) { crm_warn("no list of parameters in %s's metadata.", agent); meta_param = strdup(no_parameter_info); } (*st_del_fn) (stonith_obj); } else { return -EINVAL; /* Heartbeat agents not supported */ } xml_meta_longdesc = (char *)xmlEncodeEntitiesReentrant(NULL, (const unsigned char *)meta_longdesc); xml_meta_shortdesc = (char *)xmlEncodeEntitiesReentrant(NULL, (const unsigned char *)meta_shortdesc); bufferlen = strlen(META_TEMPLATE) + strlen(agent) + strlen(xml_meta_longdesc) + strlen(xml_meta_shortdesc) + strlen(meta_param) + 1; buffer = calloc(1, bufferlen); snprintf(buffer, bufferlen - 1, META_TEMPLATE, agent, xml_meta_longdesc, xml_meta_shortdesc, meta_param); xmlFree(xml_meta_longdesc); xmlFree(xml_meta_shortdesc); free(meta_shortdesc); free(meta_longdesc); free(meta_param); } #endif } if (output) { *output = buffer; } else { free(buffer); } return rc; } static int stonith_api_query(stonith_t * stonith, int call_options, const char *target, stonith_key_value_t ** devices, int timeout) { int rc = 0, lpc = 0, max = 0; xmlNode *data = NULL; xmlNode *output = NULL; xmlXPathObjectPtr xpathObj = NULL; CRM_CHECK(devices != NULL, return -EINVAL); data = create_xml_node(NULL, F_STONITH_DEVICE); crm_xml_add(data, F_STONITH_ORIGIN, __FUNCTION__); crm_xml_add(data, F_STONITH_TARGET, target); crm_xml_add(data, F_STONITH_ACTION, "off"); rc = stonith_send_command(stonith, STONITH_OP_QUERY, data, &output, call_options, timeout); if (rc < 0) { return rc; } xpathObj = xpath_search(output, "//@agent"); if (xpathObj) { max = numXpathResults(xpathObj); for (lpc = 0; lpc < max; lpc++) { xmlNode *match = getXpathResult(xpathObj, lpc); CRM_LOG_ASSERT(match != NULL); if(match != NULL) { xmlChar *match_path = xmlGetNodePath(match); crm_info("%s[%d] = %s", "//@agent", lpc, match_path); free(match_path); *devices = stonith_key_value_add(*devices, NULL, crm_element_value(match, XML_ATTR_ID)); } } freeXpathObject(xpathObj); } free_xml(output); free_xml(data); return max; } static int stonith_api_call(stonith_t * stonith, int call_options, const char *id, const char *action, const char *victim, int timeout, xmlNode ** output) { int rc = 0; xmlNode *data = NULL; data = create_xml_node(NULL, F_STONITH_DEVICE); crm_xml_add(data, F_STONITH_ORIGIN, __FUNCTION__); crm_xml_add(data, F_STONITH_DEVICE, id); crm_xml_add(data, F_STONITH_ACTION, action); crm_xml_add(data, F_STONITH_TARGET, victim); rc = stonith_send_command(stonith, STONITH_OP_EXEC, data, output, call_options, timeout); free_xml(data); return rc; } static int stonith_api_list(stonith_t * stonith, int call_options, const char *id, char **list_info, int timeout) { int rc; xmlNode *output = NULL; rc = stonith_api_call(stonith, call_options, id, "list", NULL, timeout, &output); if (output && list_info) { const char *list_str; list_str = crm_element_value(output, "st_output"); if (list_str) { *list_info = strdup(list_str); } } if (output) { free_xml(output); } return rc; } static int stonith_api_monitor(stonith_t * stonith, int call_options, const char *id, int timeout) { return stonith_api_call(stonith, call_options, id, "monitor", NULL, timeout, NULL); } static int stonith_api_status(stonith_t * stonith, int call_options, const char *id, const char *port, int timeout) { return stonith_api_call(stonith, call_options, id, "status", port, timeout, NULL); } static int stonith_api_fence(stonith_t * stonith, int call_options, const char *node, const char *action, int timeout, int tolerance) { int rc = 0; xmlNode *data = NULL; data = create_xml_node(NULL, __FUNCTION__); crm_xml_add(data, F_STONITH_TARGET, node); crm_xml_add(data, F_STONITH_ACTION, action); crm_xml_add_int(data, F_STONITH_TIMEOUT, timeout); crm_xml_add_int(data, F_STONITH_TOLERANCE, tolerance); rc = stonith_send_command(stonith, STONITH_OP_FENCE, data, NULL, call_options, timeout); free_xml(data); return rc; } static int stonith_api_confirm(stonith_t * stonith, int call_options, const char *target) { return stonith_api_fence(stonith, call_options | st_opt_manual_ack, target, "off", 0, 0); } static int stonith_api_history(stonith_t * stonith, int call_options, const char *node, stonith_history_t ** history, int timeout) { int rc = 0; xmlNode *data = NULL; xmlNode *output = NULL; stonith_history_t *last = NULL; *history = NULL; if (node) { data = create_xml_node(NULL, __FUNCTION__); crm_xml_add(data, F_STONITH_TARGET, node); } rc = stonith_send_command(stonith, STONITH_OP_FENCE_HISTORY, data, &output, call_options | st_opt_sync_call, timeout); free_xml(data); if (rc == 0) { xmlNode *op = NULL; xmlNode *reply = get_xpath_object("//" F_STONITH_HISTORY_LIST, output, LOG_ERR); for (op = __xml_first_child(reply); op != NULL; op = __xml_next(op)) { stonith_history_t *kvp; kvp = calloc(1, sizeof(stonith_history_t)); kvp->target = crm_element_value_copy(op, F_STONITH_TARGET); kvp->action = crm_element_value_copy(op, F_STONITH_ACTION); kvp->origin = crm_element_value_copy(op, F_STONITH_ORIGIN); kvp->delegate = crm_element_value_copy(op, F_STONITH_DELEGATE); kvp->client = crm_element_value_copy(op, F_STONITH_CLIENTNAME); crm_element_value_int(op, F_STONITH_DATE, &kvp->completed); crm_element_value_int(op, F_STONITH_STATE, &kvp->state); if (last) { last->next = kvp; } else { *history = kvp; } last = kvp; } } return rc; } gboolean is_redhat_agent(const char *agent) { int rc = 0; struct stat prop; char buffer[FILENAME_MAX + 1]; snprintf(buffer, FILENAME_MAX, "%s/%s", RH_STONITH_DIR, agent); rc = stat(buffer, &prop); if (rc >= 0 && S_ISREG(prop.st_mode)) { return TRUE; } return FALSE; } const char * get_stonith_provider(const char *agent, const char *provider) { /* This function sucks */ if (is_redhat_agent(agent)) { return "redhat"; #if HAVE_STONITH_STONITH_H } else { Stonith *stonith_obj = NULL; static gboolean need_init = TRUE; static Stonith *(*st_new_fn) (const char *) = NULL; static void (*st_del_fn) (Stonith *) = NULL; if (need_init) { need_init = FALSE; st_new_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_new", FALSE); st_del_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_delete", FALSE); } if (lha_agents_lib && st_new_fn && st_del_fn) { stonith_obj = (*st_new_fn) (agent); if (stonith_obj) { (*st_del_fn) (stonith_obj); return "heartbeat"; } } #endif } if (safe_str_eq(provider, "internal")) { return provider; } else { crm_err("No such device: %s", agent); return NULL; } } static gint stonithlib_GCompareFunc(gconstpointer a, gconstpointer b) { int rc = 0; const stonith_notify_client_t *a_client = a; const stonith_notify_client_t *b_client = b; CRM_CHECK(a_client->event != NULL && b_client->event != NULL, return 0); rc = strcmp(a_client->event, b_client->event); if (rc == 0) { if (a_client->notify == NULL || b_client->notify == NULL) { return 0; } else if (a_client->notify == b_client->notify) { return 0; } else if (((long)a_client->notify) < ((long)b_client->notify)) { crm_err("callbacks for %s are not equal: %p vs. %p", a_client->event, a_client->notify, b_client->notify); return -1; } crm_err("callbacks for %s are not equal: %p vs. %p", a_client->event, a_client->notify, b_client->notify); return 1; } return rc; } xmlNode * stonith_create_op(int call_id, const char *token, const char *op, xmlNode * data, int call_options) { xmlNode *op_msg = create_xml_node(NULL, "stonith_command"); CRM_CHECK(op_msg != NULL, return NULL); CRM_CHECK(token != NULL, return NULL); crm_xml_add(op_msg, F_XML_TAGNAME, "stonith_command"); crm_xml_add(op_msg, F_TYPE, T_STONITH_NG); crm_xml_add(op_msg, F_STONITH_CALLBACK_TOKEN, token); crm_xml_add(op_msg, F_STONITH_OPERATION, op); crm_xml_add_int(op_msg, F_STONITH_CALLID, call_id); crm_trace("Sending call options: %.8lx, %d", (long)call_options, call_options); crm_xml_add_int(op_msg, F_STONITH_CALLOPTS, call_options); if (data != NULL) { add_message_xml(op_msg, F_STONITH_CALLDATA, data); } return op_msg; } static void stonith_destroy_op_callback(gpointer data) { stonith_callback_client_t *blob = data; if (blob->timer && blob->timer->ref > 0) { g_source_remove(blob->timer->ref); } free(blob->timer); free(blob); } static int stonith_api_signoff(stonith_t * stonith) { stonith_private_t *native = stonith->private; crm_debug("Signing out of the STONITH Service"); if (native->source != NULL) { /* Attached to mainloop */ mainloop_del_ipc_client(native->source); native->source = NULL; native->ipc = NULL; } else if (native->ipc) { /* Not attached to mainloop */ crm_ipc_t *ipc = native->ipc; native->ipc = NULL; crm_ipc_close(ipc); crm_ipc_destroy(ipc); } free(native->token); native->token = NULL; stonith->state = stonith_disconnected; return pcmk_ok; } static int stonith_api_signon(stonith_t * stonith, const char *name, int *stonith_fd) { int rc = pcmk_ok; stonith_private_t *native = stonith->private; static struct ipc_client_callbacks st_callbacks = { .dispatch = stonith_dispatch_internal, .destroy = stonith_connection_destroy }; crm_trace("Connecting command channel"); stonith->state = stonith_connected_command; if (stonith_fd) { /* No mainloop */ native->ipc = crm_ipc_new("stonith-ng", 0); if (native->ipc && crm_ipc_connect(native->ipc)) { *stonith_fd = crm_ipc_get_fd(native->ipc); } else if (native->ipc) { crm_perror(LOG_ERR, "Connection to STONITH manager failed"); rc = -ENOTCONN; } } else { /* With mainloop */ native->source = mainloop_add_ipc_client("stonith-ng", G_PRIORITY_MEDIUM, 0, stonith, &st_callbacks); native->ipc = mainloop_get_ipc_client(native->source); } if (native->ipc == NULL) { crm_debug("Could not connect to the Stonith API"); rc = -ENOTCONN; } if (rc == pcmk_ok) { xmlNode *reply = NULL; xmlNode *hello = create_xml_node(NULL, "stonith_command"); crm_xml_add(hello, F_TYPE, T_STONITH_NG); crm_xml_add(hello, F_STONITH_OPERATION, CRM_OP_REGISTER); crm_xml_add(hello, F_STONITH_CLIENTNAME, name); rc = crm_ipc_send(native->ipc, hello, crm_ipc_client_response, -1, &reply); if (rc < 0) { crm_perror(LOG_DEBUG, "Couldn't complete registration with the fencing API: %d", rc); rc = -ECOMM; } else if (reply == NULL) { crm_err("Did not receive registration reply"); rc = -EPROTO; } else { const char *msg_type = crm_element_value(reply, F_STONITH_OPERATION); const char *tmp_ticket = crm_element_value(reply, F_STONITH_CLIENTID); if (safe_str_neq(msg_type, CRM_OP_REGISTER)) { crm_err("Invalid registration message: %s", msg_type); crm_log_xml_err(reply, "Bad reply"); rc = -EPROTO; } else if (tmp_ticket == NULL) { crm_err("No registration token provided"); crm_log_xml_err(reply, "Bad reply"); rc = -EPROTO; } else { crm_trace("Obtained registration token: %s", tmp_ticket); native->token = strdup(tmp_ticket); rc = pcmk_ok; } } free_xml(reply); free_xml(hello); } if (rc == pcmk_ok) { #if HAVE_MSGFROMIPC_TIMEOUT stonith->call_timeout = MAX_IPC_DELAY; #endif crm_debug("Connection to STONITH successful"); return pcmk_ok; } crm_debug("Connection to STONITH failed: %s", pcmk_strerror(rc)); stonith->cmds->disconnect(stonith); return rc; } static int stonith_set_notification(stonith_t * stonith, const char *callback, int enabled) { int rc = pcmk_ok; xmlNode *notify_msg = create_xml_node(NULL, __FUNCTION__); stonith_private_t *native = stonith->private; if (stonith->state != stonith_disconnected) { crm_xml_add(notify_msg, F_STONITH_OPERATION, T_STONITH_NOTIFY); if (enabled) { crm_xml_add(notify_msg, F_STONITH_NOTIFY_ACTIVATE, callback); } else { crm_xml_add(notify_msg, F_STONITH_NOTIFY_DEACTIVATE, callback); } rc = crm_ipc_send(native->ipc, notify_msg, crm_ipc_client_response, -1, NULL); if (rc < 0) { crm_perror(LOG_DEBUG, "Couldn't register for fencing notifications: %d", rc); rc = -ECOMM; } else { rc = pcmk_ok; } } free_xml(notify_msg); return rc; } static int stonith_api_add_notification(stonith_t * stonith, const char *event, void (*callback) (stonith_t * stonith, stonith_event_t * e)) { GList *list_item = NULL; stonith_notify_client_t *new_client = NULL; stonith_private_t *private = NULL; private = stonith->private; crm_trace("Adding callback for %s events (%d)", event, g_list_length(private->notify_list)); new_client = calloc(1, sizeof(stonith_notify_client_t)); new_client->event = event; new_client->notify = callback; list_item = g_list_find_custom(private->notify_list, new_client, stonithlib_GCompareFunc); if (list_item != NULL) { crm_warn("Callback already present"); free(new_client); return -ENOTUNIQ; } else { private->notify_list = g_list_append(private->notify_list, new_client); stonith_set_notification(stonith, event, 1); crm_trace("Callback added (%d)", g_list_length(private->notify_list)); } return pcmk_ok; } static int stonith_api_del_notification(stonith_t * stonith, const char *event) { GList *list_item = NULL; stonith_notify_client_t *new_client = NULL; stonith_private_t *private = NULL; crm_debug("Removing callback for %s events", event); private = stonith->private; new_client = calloc(1, sizeof(stonith_notify_client_t)); new_client->event = event; new_client->notify = NULL; list_item = g_list_find_custom(private->notify_list, new_client, stonithlib_GCompareFunc); stonith_set_notification(stonith, event, 0); if (list_item != NULL) { stonith_notify_client_t *list_client = list_item->data; private->notify_list = g_list_remove(private->notify_list, list_client); free(list_client); crm_trace("Removed callback"); } else { crm_trace("Callback not present"); } free(new_client); return pcmk_ok; } static gboolean stonith_async_timeout_handler(gpointer data) { struct timer_rec_s *timer = data; crm_err("Async call %d timed out after %dms", timer->call_id, timer->timeout); stonith_perform_callback(timer->stonith, NULL, timer->call_id, -ETIME); /* Always return TRUE, never remove the handler * We do that in stonith_del_callback() */ return TRUE; } static void set_callback_timeout(stonith_callback_client_t * callback, stonith_t * stonith, int call_id, int timeout) { struct timer_rec_s *async_timer = callback->timer; if (timeout <= 0) { return; } if (!async_timer) { async_timer = calloc(1, sizeof(struct timer_rec_s)); callback->timer = async_timer; } async_timer->stonith = stonith; async_timer->call_id = call_id; /* Allow a fair bit of grace to allow the server to tell us of a timeout * This is only a fallback */ async_timer->timeout = (timeout + 60) * 1000; if (async_timer->ref) { g_source_remove(async_timer->ref); } async_timer->ref = g_timeout_add(async_timer->timeout, stonith_async_timeout_handler, async_timer); } static void update_callback_timeout(int call_id, int timeout, stonith_t * st) { stonith_callback_client_t *callback = NULL; stonith_private_t *private = st->private; callback = g_hash_table_lookup(private->stonith_op_callback_table, GINT_TO_POINTER(call_id)); if (!callback || !callback->allow_timeout_updates) { return; } set_callback_timeout(callback, st, call_id, timeout); } static void invoke_callback(stonith_t * st, int call_id, int rc, void *userdata, void (*callback) (stonith_t * st, stonith_callback_data_t * data)) { stonith_callback_data_t data = { 0, }; data.call_id = call_id; data.rc = rc; data.userdata = userdata; callback(st, &data); } static int stonith_api_add_callback(stonith_t * stonith, int call_id, int timeout, int options, void *user_data, const char *callback_name, void (*callback) (stonith_t * st, stonith_callback_data_t * data)) { stonith_callback_client_t *blob = NULL; stonith_private_t *private = NULL; CRM_CHECK(stonith != NULL, return -EINVAL); CRM_CHECK(stonith->private != NULL, return -EINVAL); private = stonith->private; if (call_id == 0) { private->op_callback = callback; } else if (call_id < 0) { if (!(options & st_opt_report_only_success)) { crm_trace("Call failed, calling %s: %s", callback_name, pcmk_strerror(call_id)); invoke_callback(stonith, call_id, call_id, user_data, callback); } else { crm_warn("STONITH call failed: %s", pcmk_strerror(call_id)); } return FALSE; } blob = calloc(1, sizeof(stonith_callback_client_t)); blob->id = callback_name; blob->only_success = (options & st_opt_report_only_success) ? TRUE : FALSE; blob->user_data = user_data; blob->callback = callback; blob->allow_timeout_updates = (options & st_opt_timeout_updates) ? TRUE : FALSE; if (timeout > 0) { set_callback_timeout(blob, stonith, call_id, timeout); } g_hash_table_insert(private->stonith_op_callback_table, GINT_TO_POINTER(call_id), blob); crm_trace("Added callback to %s for call %d", callback_name, call_id); return TRUE; } static int stonith_api_del_callback(stonith_t * stonith, int call_id, bool all_callbacks) { stonith_private_t *private = stonith->private; if (all_callbacks) { private->op_callback = NULL; g_hash_table_destroy(private->stonith_op_callback_table); private->stonith_op_callback_table = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, stonith_destroy_op_callback); } else if (call_id == 0) { private->op_callback = NULL; } else { g_hash_table_remove(private->stonith_op_callback_table, GINT_TO_POINTER(call_id)); } return pcmk_ok; } static void stonith_dump_pending_op(gpointer key, gpointer value, gpointer user_data) { int call = GPOINTER_TO_INT(key); stonith_callback_client_t *blob = value; crm_debug("Call %d (%s): pending", call, crm_str(blob->id)); } void stonith_dump_pending_callbacks(stonith_t * stonith) { stonith_private_t *private = stonith->private; if (private->stonith_op_callback_table == NULL) { return; } return g_hash_table_foreach(private->stonith_op_callback_table, stonith_dump_pending_op, NULL); } void stonith_perform_callback(stonith_t * stonith, xmlNode * msg, int call_id, int rc) { stonith_private_t *private = NULL; stonith_callback_client_t *blob = NULL; stonith_callback_client_t local_blob; CRM_CHECK(stonith != NULL, return); CRM_CHECK(stonith->private != NULL, return); private = stonith->private; local_blob.id = NULL; local_blob.callback = NULL; local_blob.user_data = NULL; local_blob.only_success = FALSE; if (msg != NULL) { crm_element_value_int(msg, F_STONITH_RC, &rc); crm_element_value_int(msg, F_STONITH_CALLID, &call_id); } CRM_CHECK(call_id > 0, crm_log_xml_err(msg, "Bad result")); blob = g_hash_table_lookup(private->stonith_op_callback_table, GINT_TO_POINTER(call_id)); if (blob != NULL) { local_blob = *blob; blob = NULL; stonith_api_del_callback(stonith, call_id, FALSE); } else { crm_trace("No callback found for call %d", call_id); local_blob.callback = NULL; } if (local_blob.callback != NULL && (rc == pcmk_ok || local_blob.only_success == FALSE)) { crm_trace("Invoking callback %s for call %d", crm_str(local_blob.id), call_id); invoke_callback(stonith, call_id, rc, local_blob.user_data, local_blob.callback); } else if (private->op_callback == NULL && rc != pcmk_ok) { crm_warn("STONITH command failed: %s", pcmk_strerror(rc)); crm_log_xml_debug(msg, "Failed STONITH Update"); } if (private->op_callback != NULL) { crm_trace("Invoking global callback for call %d", call_id); invoke_callback(stonith, call_id, rc, NULL, private->op_callback); } crm_trace("OP callback activated."); } /* */ static stonith_event_t * xml_to_event(xmlNode * msg) { stonith_event_t *event = calloc(1, sizeof(stonith_event_t)); const char *ntype = crm_element_value(msg, F_SUBTYPE); char *data_addr = crm_strdup_printf("//%s", ntype); xmlNode *data = get_xpath_object(data_addr, msg, LOG_DEBUG); crm_log_xml_trace(msg, "stonith_notify"); crm_element_value_int(msg, F_STONITH_RC, &(event->result)); if (safe_str_eq(ntype, T_STONITH_NOTIFY_FENCE)) { event->operation = crm_element_value_copy(msg, F_STONITH_OPERATION); if (data) { event->origin = crm_element_value_copy(data, F_STONITH_ORIGIN); event->action = crm_element_value_copy(data, F_STONITH_ACTION); event->target = crm_element_value_copy(data, F_STONITH_TARGET); event->executioner = crm_element_value_copy(data, F_STONITH_DELEGATE); event->id = crm_element_value_copy(data, F_STONITH_REMOTE_OP_ID); event->client_origin = crm_element_value_copy(data, F_STONITH_CLIENTNAME); event->device = crm_element_value_copy(data, F_STONITH_DEVICE); } else { crm_err("No data for %s event", ntype); crm_log_xml_notice(msg, "BadEvent"); } } free(data_addr); return event; } static void event_free(stonith_event_t * event) { free(event->id); free(event->type); free(event->message); free(event->operation); free(event->origin); free(event->action); free(event->target); free(event->executioner); free(event->device); free(event->client_origin); free(event); } static void stonith_send_notification(gpointer data, gpointer user_data) { struct notify_blob_s *blob = user_data; stonith_notify_client_t *entry = data; stonith_event_t *st_event = NULL; const char *event = NULL; if (blob->xml == NULL) { crm_warn("Skipping callback - NULL message"); return; } event = crm_element_value(blob->xml, F_SUBTYPE); if (entry == NULL) { crm_warn("Skipping callback - NULL callback client"); return; } else if (entry->notify == NULL) { crm_warn("Skipping callback - NULL callback"); return; } else if (safe_str_neq(entry->event, event)) { crm_trace("Skipping callback - event mismatch %p/%s vs. %s", entry, entry->event, event); return; } st_event = xml_to_event(blob->xml); crm_trace("Invoking callback for %p/%s event...", entry, event); entry->notify(blob->stonith, st_event); crm_trace("Callback invoked..."); event_free(st_event); } int stonith_send_command(stonith_t * stonith, const char *op, xmlNode * data, xmlNode ** output_data, int call_options, int timeout) { int rc = 0; int reply_id = -1; enum crm_ipc_flags ipc_flags = crm_ipc_flags_none; xmlNode *op_msg = NULL; xmlNode *op_reply = NULL; stonith_private_t *native = stonith->private; if (stonith->state == stonith_disconnected) { return -ENOTCONN; } if (output_data != NULL) { *output_data = NULL; } if (op == NULL) { crm_err("No operation specified"); return -EINVAL; } if (call_options & st_opt_sync_call) { ipc_flags |= crm_ipc_client_response; } stonith->call_id++; /* prevent call_id from being negative (or zero) and conflicting * with the stonith_errors enum * use 2 because we use it as (stonith->call_id - 1) below */ if (stonith->call_id < 1) { stonith->call_id = 1; } CRM_CHECK(native->token != NULL,; ); op_msg = stonith_create_op(stonith->call_id, native->token, op, data, call_options); if (op_msg == NULL) { return -EINVAL; } crm_xml_add_int(op_msg, F_STONITH_TIMEOUT, timeout); crm_trace("Sending %s message to STONITH service, Timeout: %ds", op, timeout); rc = crm_ipc_send(native->ipc, op_msg, ipc_flags, 1000 * (timeout + 60), &op_reply); free_xml(op_msg); if (rc < 0) { crm_perror(LOG_ERR, "Couldn't perform %s operation (timeout=%ds): %d", op, timeout, rc); rc = -ECOMM; goto done; } crm_log_xml_trace(op_reply, "Reply"); if (!(call_options & st_opt_sync_call)) { crm_trace("Async call %d, returning", stonith->call_id); CRM_CHECK(stonith->call_id != 0, return -EPROTO); free_xml(op_reply); return stonith->call_id; } rc = pcmk_ok; crm_element_value_int(op_reply, F_STONITH_CALLID, &reply_id); if (reply_id == stonith->call_id) { crm_trace("Synchronous reply %d received", reply_id); if (crm_element_value_int(op_reply, F_STONITH_RC, &rc) != 0) { rc = -ENOMSG; } if ((call_options & st_opt_discard_reply) || output_data == NULL) { crm_trace("Discarding reply"); } else { *output_data = op_reply; op_reply = NULL; /* Prevent subsequent free */ } } else if (reply_id <= 0) { crm_err("Received bad reply: No id set"); crm_log_xml_err(op_reply, "Bad reply"); free_xml(op_reply); rc = -ENOMSG; } else { crm_err("Received bad reply: %d (wanted %d)", reply_id, stonith->call_id); crm_log_xml_err(op_reply, "Old reply"); free_xml(op_reply); rc = -ENOMSG; } done: if (crm_ipc_connected(native->ipc) == FALSE) { crm_err("STONITH disconnected"); stonith->state = stonith_disconnected; } free_xml(op_reply); return rc; } /* Not used with mainloop */ bool stonith_dispatch(stonith_t * st) { gboolean stay_connected = TRUE; stonith_private_t *private = NULL; CRM_ASSERT(st != NULL); private = st->private; while (crm_ipc_ready(private->ipc)) { if (crm_ipc_read(private->ipc) > 0) { const char *msg = crm_ipc_buffer(private->ipc); stonith_dispatch_internal(msg, strlen(msg), st); } if (crm_ipc_connected(private->ipc) == FALSE) { crm_err("Connection closed"); stay_connected = FALSE; } } return stay_connected; } int stonith_dispatch_internal(const char *buffer, ssize_t length, gpointer userdata) { const char *type = NULL; struct notify_blob_s blob; stonith_t *st = userdata; stonith_private_t *private = NULL; CRM_ASSERT(st != NULL); private = st->private; blob.stonith = st; blob.xml = string2xml(buffer); if (blob.xml == NULL) { crm_warn("Received a NULL msg from STONITH service: %s.", buffer); return 0; } /* do callbacks */ type = crm_element_value(blob.xml, F_TYPE); crm_trace("Activating %s callbacks...", type); if (safe_str_eq(type, T_STONITH_NG)) { stonith_perform_callback(st, blob.xml, 0, 0); } else if (safe_str_eq(type, T_STONITH_NOTIFY)) { g_list_foreach(private->notify_list, stonith_send_notification, &blob); } else if (safe_str_eq(type, T_STONITH_TIMEOUT_VALUE)) { int call_id = 0; int timeout = 0; crm_element_value_int(blob.xml, F_STONITH_TIMEOUT, &timeout); crm_element_value_int(blob.xml, F_STONITH_CALLID, &call_id); update_callback_timeout(call_id, timeout, st); } else { crm_err("Unknown message type: %s", type); crm_log_xml_warn(blob.xml, "BadReply"); } free_xml(blob.xml); return 1; } static int stonith_api_free(stonith_t * stonith) { int rc = pcmk_ok; crm_trace("Destroying %p", stonith); if (stonith->state != stonith_disconnected) { crm_trace("Disconnecting %p first", stonith); rc = stonith->cmds->disconnect(stonith); } if (stonith->state == stonith_disconnected) { stonith_private_t *private = stonith->private; crm_trace("Removing %d callbacks", g_hash_table_size(private->stonith_op_callback_table)); g_hash_table_destroy(private->stonith_op_callback_table); crm_trace("Destroying %d notification clients", g_list_length(private->notify_list)); g_list_free_full(private->notify_list, free); free(stonith->private); free(stonith->cmds); free(stonith); } else { crm_err("Not free'ing active connection: %s (%d)", pcmk_strerror(rc), rc); } return rc; } void stonith_api_delete(stonith_t * stonith) { crm_trace("Destroying %p", stonith); if(stonith) { stonith->cmds->free(stonith); } } stonith_t * stonith_api_new(void) { stonith_t *new_stonith = NULL; stonith_private_t *private = NULL; new_stonith = calloc(1, sizeof(stonith_t)); private = calloc(1, sizeof(stonith_private_t)); new_stonith->private = private; private->stonith_op_callback_table = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, stonith_destroy_op_callback); private->notify_list = NULL; new_stonith->call_id = 1; new_stonith->state = stonith_disconnected; new_stonith->cmds = calloc(1, sizeof(stonith_api_operations_t)); /* *INDENT-OFF* */ new_stonith->cmds->free = stonith_api_free; new_stonith->cmds->connect = stonith_api_signon; new_stonith->cmds->disconnect = stonith_api_signoff; new_stonith->cmds->list = stonith_api_list; new_stonith->cmds->monitor = stonith_api_monitor; new_stonith->cmds->status = stonith_api_status; new_stonith->cmds->fence = stonith_api_fence; new_stonith->cmds->confirm = stonith_api_confirm; new_stonith->cmds->history = stonith_api_history; new_stonith->cmds->list_agents = stonith_api_device_list; new_stonith->cmds->metadata = stonith_api_device_metadata; new_stonith->cmds->query = stonith_api_query; new_stonith->cmds->remove_device = stonith_api_remove_device; new_stonith->cmds->register_device = stonith_api_register_device; new_stonith->cmds->remove_level = stonith_api_remove_level; new_stonith->cmds->remove_level_full = stonith_api_remove_level_full; new_stonith->cmds->register_level = stonith_api_register_level; new_stonith->cmds->register_level_full = stonith_api_register_level_full; new_stonith->cmds->remove_callback = stonith_api_del_callback; new_stonith->cmds->register_callback = stonith_api_add_callback; new_stonith->cmds->remove_notification = stonith_api_del_notification; new_stonith->cmds->register_notification = stonith_api_add_notification; /* *INDENT-ON* */ return new_stonith; } stonith_key_value_t * stonith_key_value_add(stonith_key_value_t * head, const char *key, const char *value) { stonith_key_value_t *p, *end; p = calloc(1, sizeof(stonith_key_value_t)); if (key) { p->key = strdup(key); } if (value) { p->value = strdup(value); } end = head; while (end && end->next) { end = end->next; } if (end) { end->next = p; } else { head = p; } return head; } void stonith_key_value_freeall(stonith_key_value_t * head, int keys, int values) { stonith_key_value_t *p; while (head) { p = head->next; if (keys) { free(head->key); } if (values) { free(head->value); } free(head); head = p; } } #define api_log_open() openlog("stonith-api", LOG_CONS | LOG_NDELAY | LOG_PID, LOG_DAEMON) #define api_log(level, fmt, args...) syslog(level, "%s: "fmt, __FUNCTION__, args) int stonith_api_kick(uint32_t nodeid, const char *uname, int timeout, bool off) { char *name = NULL; const char *action = "reboot"; int rc = -EPROTO; stonith_t *st = NULL; enum stonith_call_options opts = st_opt_sync_call | st_opt_allow_suicide; api_log_open(); st = stonith_api_new(); if (st) { rc = st->cmds->connect(st, "stonith-api", NULL); if(rc != pcmk_ok) { api_log(LOG_ERR, "Connection failed, could not kick (%s) node %u/%s : %s (%d)", action, nodeid, uname, pcmk_strerror(rc), rc); } } if (uname != NULL) { name = strdup(uname); } else if (nodeid > 0) { opts |= st_opt_cs_nodeid; name = crm_itoa(nodeid); } if (off) { action = "off"; } if (rc == pcmk_ok) { rc = st->cmds->fence(st, opts, name, action, timeout, 0); if(rc != pcmk_ok) { api_log(LOG_ERR, "Could not kick (%s) node %u/%s : %s (%d)", action, nodeid, uname, pcmk_strerror(rc), rc); } else { api_log(LOG_NOTICE, "Node %u/%s kicked: %s ", nodeid, uname, action); } } if (st) { st->cmds->disconnect(st); stonith_api_delete(st); } free(name); return rc; } time_t stonith_api_time(uint32_t nodeid, const char *uname, bool in_progress) { int rc = 0; char *name = NULL; time_t when = 0; stonith_t *st = NULL; stonith_history_t *history, *hp = NULL; enum stonith_call_options opts = st_opt_sync_call; st = stonith_api_new(); if (st) { rc = st->cmds->connect(st, "stonith-api", NULL); if(rc != pcmk_ok) { api_log(LOG_NOTICE, "Connection failed: %s (%d)", pcmk_strerror(rc), rc); } } if (uname != NULL) { name = strdup(uname); } else if (nodeid > 0) { opts |= st_opt_cs_nodeid; name = crm_itoa(nodeid); } if (st && rc == pcmk_ok) { int entries = 0; int progress = 0; int completed = 0; rc = st->cmds->history(st, opts, name, &history, 120); for (hp = history; hp; hp = hp->next) { entries++; if (in_progress) { progress++; if (hp->state != st_done && hp->state != st_failed) { when = time(NULL); } } else if (hp->state == st_done) { completed++; if (hp->completed > when) { when = hp->completed; } } } if(rc == pcmk_ok) { api_log(LOG_INFO, "Found %d entries for %u/%s: %d in progress, %d completed", entries, nodeid, uname, progress, completed); } else { api_log(LOG_ERR, "Could not retrieve fence history for %u/%s: %s (%d)", nodeid, uname, pcmk_strerror(rc), rc); } } if (st) { st->cmds->disconnect(st); stonith_api_delete(st); } if(when) { api_log(LOG_INFO, "Node %u/%s last kicked at: %ld", nodeid, uname, (long int)when); } free(name); return when; } #if HAVE_STONITH_STONITH_H # include const char *i_hate_pils(int rc); const char * i_hate_pils(int rc) { return PIL_strerror(rc); } #endif diff --git a/lib/transition/unpack.c b/lib/transition/unpack.c index 7a8c656fb6..bdb01d1f28 100644 --- a/lib/transition/unpack.c +++ b/lib/transition/unpack.c @@ -1,336 +1,340 @@ /* * Copyright (C) 2004 Andrew Beekhof * * 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 #include #include #include #include #include #include CRM_TRACE_INIT_DATA(transitioner); static crm_action_t * unpack_action(synapse_t * parent, xmlNode * xml_action) { crm_action_t *action = NULL; const char *value = crm_element_value(xml_action, XML_ATTR_ID); if (value == NULL) { crm_err("Actions must have an id!"); crm_log_xml_trace(xml_action, "Action with missing id"); return NULL; } action = calloc(1, sizeof(crm_action_t)); - CRM_CHECK(action != NULL, return NULL); + if (action == NULL) { + crm_perror(LOG_CRIT, "Cannot unpack action"); + crm_log_xml_trace(xml_action, "Lost action"); + return NULL; + } action->id = crm_parse_int(value, NULL); action->type = action_type_rsc; action->xml = copy_xml(xml_action); action->synapse = parent; if (safe_str_eq(crm_element_name(action->xml), XML_GRAPH_TAG_RSC_OP)) { action->type = action_type_rsc; } else if (safe_str_eq(crm_element_name(action->xml), XML_GRAPH_TAG_PSEUDO_EVENT)) { action->type = action_type_pseudo; } else if (safe_str_eq(crm_element_name(action->xml), XML_GRAPH_TAG_CRM_EVENT)) { action->type = action_type_crm; } action->params = xml2list(action->xml); value = g_hash_table_lookup(action->params, "CRM_meta_timeout"); if (value != NULL) { action->timeout = crm_parse_int(value, NULL); } /* Take start-delay into account for the timeout of the action timer */ value = g_hash_table_lookup(action->params, "CRM_meta_start_delay"); if (value != NULL) { action->timeout += crm_parse_int(value, NULL); } value = g_hash_table_lookup(action->params, "CRM_meta_interval"); if (value != NULL) { action->interval = crm_parse_int(value, NULL); } value = g_hash_table_lookup(action->params, "CRM_meta_can_fail"); if (value != NULL) { crm_str_to_boolean(value, &(action->can_fail)); } crm_trace("Action %d has timer set to %dms", action->id, action->timeout); return action; } static synapse_t * unpack_synapse(crm_graph_t * new_graph, xmlNode * xml_synapse) { const char *value = NULL; xmlNode *inputs = NULL; xmlNode *action_set = NULL; synapse_t *new_synapse = NULL; CRM_CHECK(xml_synapse != NULL, return NULL); crm_trace("looking in synapse %s", ID(xml_synapse)); new_synapse = calloc(1, sizeof(synapse_t)); new_synapse->id = crm_parse_int(ID(xml_synapse), NULL); value = crm_element_value(xml_synapse, XML_CIB_ATTR_PRIORITY); if (value != NULL) { new_synapse->priority = crm_parse_int(value, NULL); } new_graph->num_synapses++; CRM_CHECK(new_synapse->id >= 0, free(new_synapse); return NULL); crm_trace("look for actions in synapse %s", crm_element_value(xml_synapse, XML_ATTR_ID)); for (action_set = __xml_first_child(xml_synapse); action_set != NULL; action_set = __xml_next(action_set)) { if (crm_str_eq((const char *)action_set->name, "action_set", TRUE)) { xmlNode *action = NULL; for (action = __xml_first_child(action_set); action != NULL; action = __xml_next(action)) { crm_action_t *new_action = unpack_action(new_synapse, action); new_graph->num_actions++; if (new_action == NULL) { continue; } crm_trace("Adding action %d to synapse %d", new_action->id, new_synapse->id); new_synapse->actions = g_list_append(new_synapse->actions, new_action); } } } crm_trace("look for inputs in synapse %s", ID(xml_synapse)); for (inputs = __xml_first_child(xml_synapse); inputs != NULL; inputs = __xml_next(inputs)) { if (crm_str_eq((const char *)inputs->name, "inputs", TRUE)) { xmlNode *trigger = NULL; for (trigger = __xml_first_child(inputs); trigger != NULL; trigger = __xml_next(trigger)) { xmlNode *input = NULL; for (input = __xml_first_child(trigger); input != NULL; input = __xml_next(input)) { crm_action_t *new_input = unpack_action(new_synapse, input); if (new_input == NULL) { continue; } crm_trace("Adding input %d to synapse %d", new_input->id, new_synapse->id); new_synapse->inputs = g_list_append(new_synapse->inputs, new_input); } } } } return new_synapse; } crm_graph_t * unpack_graph(xmlNode * xml_graph, const char *reference) { /* id = -1; new_graph->abort_priority = 0; new_graph->network_delay = -1; new_graph->transition_timeout = -1; new_graph->stonith_timeout = -1; new_graph->completion_action = tg_done; if (reference) { new_graph->source = strdup(reference); } else { new_graph->source = strdup("unknown"); } if (xml_graph != NULL) { t_id = crm_element_value(xml_graph, "transition_id"); CRM_CHECK(t_id != NULL, free(new_graph); return NULL); new_graph->id = crm_parse_int(t_id, "-1"); time = crm_element_value(xml_graph, "cluster-delay"); CRM_CHECK(time != NULL, free(new_graph); return NULL); new_graph->network_delay = crm_get_msec(time); time = crm_element_value(xml_graph, "stonith-timeout"); if (time == NULL) { new_graph->stonith_timeout = new_graph->network_delay; } else { new_graph->stonith_timeout = crm_get_msec(time); } t_id = crm_element_value(xml_graph, "batch-limit"); new_graph->batch_limit = crm_parse_int(t_id, "0"); t_id = crm_element_value(xml_graph, "migration-limit"); new_graph->migration_limit = crm_parse_int(t_id, "-1"); } for (synapse = __xml_first_child(xml_graph); synapse != NULL; synapse = __xml_next(synapse)) { if (crm_str_eq((const char *)synapse->name, "synapse", TRUE)) { synapse_t *new_synapse = unpack_synapse(new_graph, synapse); if (new_synapse != NULL) { new_graph->synapses = g_list_append(new_graph->synapses, new_synapse); } } } crm_debug("Unpacked transition %d: %d actions in %d synapses", new_graph->id, new_graph->num_actions, new_graph->num_synapses); return new_graph; } static void destroy_action(crm_action_t * action) { if (action->timer && action->timer->source_id != 0) { crm_warn("Cancelling timer for action %d (src=%d)", action->id, action->timer->source_id); g_source_remove(action->timer->source_id); } if (action->params) { g_hash_table_destroy(action->params); } free_xml(action->xml); free(action->timer); free(action); } static void destroy_synapse(synapse_t * synapse) { while (g_list_length(synapse->actions) > 0) { crm_action_t *action = g_list_nth_data(synapse->actions, 0); synapse->actions = g_list_remove(synapse->actions, action); destroy_action(action); } while (g_list_length(synapse->inputs) > 0) { crm_action_t *action = g_list_nth_data(synapse->inputs, 0); synapse->inputs = g_list_remove(synapse->inputs, action); destroy_action(action); } free(synapse); } void destroy_graph(crm_graph_t * graph) { if (graph == NULL) { return; } while (g_list_length(graph->synapses) > 0) { synapse_t *synapse = g_list_nth_data(graph->synapses, 0); graph->synapses = g_list_remove(graph->synapses, synapse); destroy_synapse(synapse); } free(graph->source); free(graph); } lrmd_event_data_t * convert_graph_action(xmlNode * resource, crm_action_t * action, int status, int rc) { xmlNode *xop = NULL; lrmd_event_data_t *op = NULL; GHashTableIter iter; const char *name = NULL; const char *value = NULL; xmlNode *action_resource = NULL; CRM_CHECK(action != NULL, return NULL); CRM_CHECK(action->type == action_type_rsc, return NULL); action_resource = first_named_child(action->xml, XML_CIB_TAG_RESOURCE); CRM_CHECK(action_resource != NULL, crm_log_xml_warn(action->xml, "Bad"); return NULL); op = calloc(1, sizeof(lrmd_event_data_t)); op->rsc_id = strdup(ID(action_resource)); op->interval = action->interval; op->op_type = strdup(crm_element_value(action->xml, XML_LRM_ATTR_TASK)); op->rc = rc; op->op_status = status; op->t_run = time(NULL); op->t_rcchange = op->t_run; op->params = g_hash_table_new_full(crm_str_hash, g_str_equal, g_hash_destroy_str, g_hash_destroy_str); g_hash_table_iter_init(&iter, action->params); while (g_hash_table_iter_next(&iter, (void **)&name, (void **)&value)) { g_hash_table_insert(op->params, strdup(name), strdup(value)); } for (xop = __xml_first_child(resource); xop != NULL; xop = __xml_next(xop)) { int tmp = 0; crm_element_value_int(xop, XML_LRM_ATTR_CALLID, &tmp); crm_debug("Got call_id=%d for %s", tmp, ID(resource)); if (tmp > op->call_id) { op->call_id = tmp; } } op->call_id++; return op; }