diff --git a/include/pacemaker.h b/include/pacemaker.h index 305770040e..9a353bebdf 100644 --- a/include/pacemaker.h +++ b/include/pacemaker.h @@ -1,447 +1,453 @@ /* * Copyright 2019-2022 the Pacemaker project contributors * * The version control history for this file may have further details. * * This source code is licensed under the GNU Lesser General Public License * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY. */ #ifndef PCMK__PACEMAKER__H # define PCMK__PACEMAKER__H # include # include # include # include # include #ifdef __cplusplus extern "C" { #endif /** * \file * \brief High Level API * \ingroup pacemaker */ /*! * \brief Modify operation of running a cluster simulation. */ enum pcmk_sim_flags { pcmk_sim_none = 0, pcmk_sim_all_actions = 1 << 0, pcmk_sim_show_pending = 1 << 1, pcmk_sim_process = 1 << 2, pcmk_sim_show_scores = 1 << 3, pcmk_sim_show_utilization = 1 << 4, pcmk_sim_simulate = 1 << 5, pcmk_sim_sanitized = 1 << 6, pcmk_sim_verbose = 1 << 7, }; /*! * \brief Synthetic cluster events that can be injected into the cluster * for running simulations. */ typedef struct { /*! A list of node names (gchar *) to simulate bringing online */ GList *node_up; /*! A list of node names (gchar *) to simulate bringing offline */ GList *node_down; /*! A list of node names (gchar *) to simulate failing */ GList *node_fail; /*! A list of operations (gchar *) to inject. The format of these strings * is described in the "Operation Specification" section of crm_simulate * help output. */ GList *op_inject; /*! A list of operations (gchar *) that should return a given error code * if they fail. The format of these strings is described in the * "Operation Specification" section of crm_simulate help output. */ GList *op_fail; /*! A list of tickets (gchar *) to simulate granting */ GList *ticket_grant; /*! A list of tickets (gchar *) to simulate revoking */ GList *ticket_revoke; /*! A list of tickets (gchar *) to simulate putting on standby */ GList *ticket_standby; /*! A list of tickets (gchar *) to simulate activating */ GList *ticket_activate; /*! Does the cluster have an active watchdog device? */ char *watchdog; /*! Does the cluster have quorum? */ char *quorum; } pcmk_injections_t; /*! * \brief Get controller status * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in] dest_node Destination node for request * \param[in] message_timeout_ms Message timeout * * \return Standard Pacemaker return code */ int pcmk_controller_status(xmlNodePtr *xml, char *dest_node, unsigned int message_timeout_ms); /*! * \brief Get designated controller * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in] message_timeout_ms Message timeout * * \return Standard Pacemaker return code */ int pcmk_designated_controller(xmlNodePtr *xml, unsigned int message_timeout_ms); /*! * \brief Free a :pcmk_injections_t structure * * \param[in,out] injections The structure to be freed */ void pcmk_free_injections(pcmk_injections_t *injections); /*! * \brief Get and output \p pacemakerd status * * \param[in,out] xml Destination for the result, as an XML tree * \param[in] ipc_name IPC name for request - * \param[in] message_timeout_ms Message timeout + * \param[in] message_timeout_ms How long to wait for a reply from the + * \p pacemakerd API. If 0, + * \p pcmk_ipc_dispatch_sync will be used. + * If positive, \p pcmk_ipc_dispatch_main + * will be used, and a new mainloop will be + * created for this purpose (freed before + * return). * * \return Standard Pacemaker return code */ int pcmk_pacemakerd_status(xmlNodePtr *xml, const char *ipc_name, unsigned int message_timeout_ms); /*! * \brief Calculate and output resource operation digests * * \param[out] xml Where to store XML with result * \param[in] rsc Resource to calculate digests for * \param[in] node Node whose operation history should be used * \param[in] overrides Hash table of configuration parameters to override * \param[in] data_set Cluster working set (with status) * * \return Standard Pacemaker return code */ int pcmk_resource_digests(xmlNodePtr *xml, pe_resource_t *rsc, pe_node_t *node, GHashTable *overrides, pe_working_set_t *data_set); /** * \brief Simulate a cluster's response to events. * * This high-level function essentially implements crm_simulate(8). It operates * on an input CIB file and various lists of events that can be simulated. It * optionally writes out a variety of artifacts to show the results of the * simulation. Output can be modified with various flags. * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in,out] data_set Working set for the cluster. * \param[in] events A structure containing cluster events * (node up/down, tickets, injected operations) * \param[in] flags A bitfield of :pcmk_sim_flags to modify * operation of the simulation. * \param[in] section_opts Which portions of the cluster status output * should be displayed? * \param[in] use_date The date to set the cluster's time to * (may be NULL). * \param[in] input_file The source CIB file, which may be overwritten by * this function (may be NULL). * \param[in] graph_file Where to write the XML-formatted transition graph * (may be NULL, in which case no file will be * written). * \param[in] dot_file Where to write the dot(1) formatted transition * graph (may be NULL, in which case no file will * be written). See \p pcmk__write_sim_dotfile(). * * \return Standard Pacemaker return code */ int pcmk_simulate(xmlNodePtr *xml, pe_working_set_t *data_set, pcmk_injections_t *injections, unsigned int flags, unsigned int section_opts, char *use_date, char *input_file, char *graph_file, char *dot_file); /*! * \brief Get nodes list * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in] node_types Node type(s) to return (default: all) * * \return Standard Pacemaker return code */ int pcmk_list_nodes(xmlNodePtr *xml, char *node_types); /*! * \brief Output the current status of the cluster, formatted in the same way * that `crm_mon --output-as=xml` would. * * \param[in,out] xml The destination for the result, as an XML tree. * * \return Standard Pacemaker return code */ int pcmk_status(xmlNodePtr *xml); /*! * \brief Check whether each rule in a list is in effect * * \param[in,out] xml The destination for the result, as an XML tree * \param[in] input The CIB XML to check (if \c NULL, use current CIB) * \param[in] date Check whether the rule is in effect at this date and * time (if \c NULL, use current date and time) * \param[in] rule_ids The IDs of the rules to check, as a NULL- * terminated list. * * \return Standard Pacemaker return code */ int pcmk_check_rules(xmlNodePtr *xml, xmlNodePtr input, const crm_time_t *date, const char **rule_ids); /*! * \brief Check whether a given rule is in effect * * \param[in,out] xml The destination for the result, as an XML tree * \param[in] input The CIB XML to check (if \c NULL, use current CIB) * \param[in] date Check whether the rule is in effect at this date and * time (if \c NULL, use current date and time) * \param[in] rule_ids The ID of the rule to check * * \return Standard Pacemaker return code */ static inline int pcmk_check_rule(xmlNodePtr *xml, xmlNodePtr input, const crm_time_t *date, const char *rule_id) { const char *rule_ids[] = {rule_id, NULL}; return pcmk_check_rules(xml, input, date, rule_ids); } /* * \enum pcmk_rc_disp_flags * \brief Bit flags to control which fields of result code info are displayed */ enum pcmk_rc_disp_flags { pcmk_rc_disp_none = 0, //!< (Does nothing) pcmk_rc_disp_code = (1 << 0), //!< Display result code number pcmk_rc_disp_name = (1 << 1), //!< Display result code name pcmk_rc_disp_desc = (1 << 2), //!< Display result code description }; /* * \brief Display the name and/or description of a result code * * \param[in,out] xml The destination for the result, as an XML tree * \param[in] code The result code * \param[in] type Interpret \c code as this type of result code. * Supported values: \c pcmk_result_legacy, * \c pcmk_result_rc, \c pcmk_result_exitcode. * \param[in] flags Group of \c pcmk_rc_disp_flags * * \return Standard Pacemaker return code */ int pcmk_show_result_code(xmlNodePtr *xml, int code, enum pcmk_result_type type, uint32_t flags); /*! * \brief List all valid result codes in a particular family * * \param[in,out] xml The destination for the result, as an XML tree * \param[in] type The family of result codes to list. Supported * values: \c pcmk_result_legacy, \c pcmk_result_rc, * \c pcmk_result_exitcode. * \param[in] flags Group of \c pcmk_rc_disp_flags * * \return Standard Pacemaker return code */ int pcmk_list_result_codes(xmlNodePtr *xml, enum pcmk_result_type type, uint32_t flags); #ifdef BUILD_PUBLIC_LIBPACEMAKER /*! * \brief Ask the cluster to perform fencing * * \param[in] st A connection to the fencer API * \param[in] target The node that should be fenced * \param[in] action The fencing action (on, off, reboot) to perform * \param[in] name Who requested the fence action? * \param[in] timeout How long to wait for the operation to complete (in ms) * \param[in] tolerance If a successful action for \p target happened within * this many ms, return 0 without performing the action * again * \param[in] delay Apply this delay (in milliseconds) before initiating the * fencing action (a value of -1 applies no delay and also * disables any fencing delay from pcmk_delay_base and * pcmk_delay_max) * \param[out] reason If not NULL, where to put descriptive failure reason * * \return Standard Pacemaker return code * \note If \p reason is not NULL, the caller is responsible for freeing its * returned value. */ int pcmk_request_fencing(stonith_t *st, const char *target, const char *action, const char *name, unsigned int timeout, unsigned int tolerance, int delay, char **reason); /*! * \brief List the fencing operations that have occurred for a specific node. * * \note If \p xml is not NULL, it will be freed first and the previous * contents lost. * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in] st A connection to the STONITH API. * \param[in] target The node to get history for. * \param[in] timeout How long to wait for the operation to complete (in ms). * \param[in] quiet Suppress most output. * \param[in] verbose Include additional output. * \param[in] broadcast Gather fencing history from all nodes. * \param[in] cleanup Clean up fencing history after listing. * * \return Standard Pacemaker return code */ int pcmk_fence_history(xmlNodePtr *xml, stonith_t *st, char *target, unsigned int timeout, bool quiet, int verbose, bool broadcast, bool cleanup); /*! * \brief List all installed STONITH agents. * * \note If \p xml is not NULL, it will be freed first and the previous * contents lost. * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in] st A connection to the STONITH API. * \param[in] timeout How long to wait for the operation to complete (in ms). * * \return Standard Pacemaker return code */ int pcmk_fence_installed(xmlNodePtr *xml, stonith_t *st, unsigned int timeout); /*! * \brief When was a device last fenced? * * \note If \p xml is not NULL, it will be freed first and the previous * contents lost. * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in] target The node that was fenced. * \param[in] as_nodeid * * \return Standard Pacemaker return code */ int pcmk_fence_last(xmlNodePtr *xml, const char *target, bool as_nodeid); /*! * \brief List nodes that can be fenced. * * \note If \p xml is not NULL, it will be freed first and the previous * contents lost. * * \param[in,out] xml The destination for the result, as an XML tree * \param[in] st A connection to the STONITH API * \param[in] device_id Resource ID of fence device to check * \param[in] timeout How long to wait for the operation to complete (in ms) * * \return Standard Pacemaker return code */ int pcmk_fence_list_targets(xmlNodePtr *xml, stonith_t *st, const char *device_id, unsigned int timeout); /*! * \brief Get metadata for a resource. * * \note If \p xml is not NULL, it will be freed first and the previous * contents lost. * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in] st A connection to the STONITH API. * \param[in] agent The fence agent to get metadata for. * \param[in] timeout How long to wait for the operation to complete (in ms). * * \return Standard Pacemaker return code */ int pcmk_fence_metadata(xmlNodePtr *xml, stonith_t *st, char *agent, unsigned int timeout); /*! * \brief List registered fence devices. * * \note If \p xml is not NULL, it will be freed first and the previous * contents lost. * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in] st A connection to the STONITH API. * \param[in] target If not NULL, only return devices that can fence * this node. * \param[in] timeout How long to wait for the operation to complete (in ms). * * \return Standard Pacemaker return code */ int pcmk_fence_registered(xmlNodePtr *xml, stonith_t *st, char *target, unsigned int timeout); /*! * \brief Register a fencing level for a specific node, node regex, or attribute. * * \p target can take three different forms: * - name=value, in which case \p target is an attribute. * - @pattern, in which case \p target is a node regex. * - Otherwise, \p target is a node name. * * \param[in] st A connection to the STONITH API. * \param[in] target The object to register a fencing level for. * \param[in] fence_level Index number of level to add. * \param[in] devices Devices to use in level. * * \return Standard Pacemaker return code */ int pcmk_fence_register_level(stonith_t *st, char *target, int fence_level, stonith_key_value_t *devices); /*! * \brief Unregister a fencing level for a specific node, node regex, or attribute. * * \p target can take three different forms: * - name=value, in which case \p target is an attribute. * - @pattern, in which case \p target is a node regex. * - Otherwise, \p target is a node name. * * \param[in] st A connection to the STONITH API. * \param[in] target The object to unregister a fencing level for. * \param[in] fence_level Index number of level to remove. * * \return Standard Pacemaker return code */ int pcmk_fence_unregister_level(stonith_t *st, char *target, int fence_level); /*! * \brief Validate a STONITH device configuration. * * \note If \p xml is not NULL, it will be freed first and the previous * contents lost. * * \param[in,out] xml The destination for the result, as an XML tree. * \param[in] st A connection to the STONITH API. * \param[in] agent The agent to validate (for example, "fence_xvm"). * \param[in] id STONITH device ID (may be NULL). * \param[in] params STONITH device configuration parameters. * \param[in] timeout How long to wait for the operation to complete (in ms). * * \return Standard Pacemaker return code */ int pcmk_fence_validate(xmlNodePtr *xml, stonith_t *st, const char *agent, const char *id, stonith_key_value_t *params, unsigned int timeout); #endif #ifdef __cplusplus } #endif #endif diff --git a/lib/pacemaker/pcmk_cluster_queries.c b/lib/pacemaker/pcmk_cluster_queries.c index 6e6b51c988..7e28e04091 100644 --- a/lib/pacemaker/pcmk_cluster_queries.c +++ b/lib/pacemaker/pcmk_cluster_queries.c @@ -1,534 +1,570 @@ /* * Copyright 2020-2022 the Pacemaker project contributors * * The version control history for this file may have further details. * * This source code is licensed under the GNU Lesser General Public License * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY. */ #include #include // gboolean, GMainLoop, etc. #include // xmlNode #include #include #include #include #include #include #include #include #include #include #include #include #include #define DEFAULT_MESSAGE_TIMEOUT_MS 30000 typedef struct { pcmk__output_t *out; GMainLoop *mainloop; int rc; guint message_timer_id; guint message_timeout_ms; enum pcmk_pacemakerd_state pcmkd_state; } data_t; static void quit_main_loop(data_t *data) { if (data->mainloop != NULL) { GMainLoop *mloop = data->mainloop; data->mainloop = NULL; // Don't re-enter this block pcmk_quit_main_loop(mloop, 10); g_main_loop_unref(mloop); } } static gboolean admin_message_timeout(gpointer user_data) { data_t *data = user_data; pcmk__output_t *out = data->out; out->err(out, "error: No reply received from controller before timeout (%dms)", data->message_timeout_ms); data->message_timer_id = 0; data->rc = ETIMEDOUT; quit_main_loop(data); return FALSE; // Tells glib to remove source } static void start_main_loop(data_t *data) { if (data->message_timeout_ms < 1) { data->message_timeout_ms = DEFAULT_MESSAGE_TIMEOUT_MS; } data->rc = ECONNRESET; // For unexpected disconnects data->mainloop = g_main_loop_new(NULL, FALSE); data->message_timer_id = g_timeout_add(data->message_timeout_ms, admin_message_timeout, data); g_main_loop_run(data->mainloop); } static void event_done(data_t *data, pcmk_ipc_api_t *api) { pcmk_disconnect_ipc(api); quit_main_loop(data); } static pcmk_controld_api_reply_t * controld_event_reply(data_t *data, pcmk_ipc_api_t *controld_api, enum pcmk_ipc_event event_type, crm_exit_t status, void *event_data) { pcmk__output_t *out = data->out; pcmk_controld_api_reply_t *reply = event_data; switch (event_type) { case pcmk_ipc_event_disconnect: if (data->rc == ECONNRESET) { // Unexpected out->err(out, "error: Lost connection to controller"); } event_done(data, controld_api); return NULL; case pcmk_ipc_event_reply: break; default: return NULL; } if (data->message_timer_id != 0) { g_source_remove(data->message_timer_id); data->message_timer_id = 0; } if (status != CRM_EX_OK) { out->err(out, "error: Bad reply from controller: %s", crm_exit_str(status)); data->rc = EBADMSG; event_done(data, controld_api); return NULL; } if (reply->reply_type != pcmk_controld_reply_ping) { out->err(out, "error: Unknown reply type %d from controller", reply->reply_type); data->rc = EBADMSG; event_done(data, controld_api); return NULL; } return reply; } static void controller_status_event_cb(pcmk_ipc_api_t *controld_api, enum pcmk_ipc_event event_type, crm_exit_t status, void *event_data, void *user_data) { data_t *data = user_data; pcmk__output_t *out = data->out; pcmk_controld_api_reply_t *reply = controld_event_reply(data, controld_api, event_type, status, event_data); if (reply != NULL) { out->message(out, "health", reply->data.ping.sys_from, reply->host_from, reply->data.ping.fsa_state, reply->data.ping.result); data->rc = pcmk_rc_ok; } event_done(data, controld_api); } static void designated_controller_event_cb(pcmk_ipc_api_t *controld_api, enum pcmk_ipc_event event_type, crm_exit_t status, void *event_data, void *user_data) { data_t *data = user_data; pcmk__output_t *out = data->out; pcmk_controld_api_reply_t *reply = controld_event_reply(data, controld_api, event_type, status, event_data); if (reply != NULL) { out->message(out, "dc", reply->host_from); data->rc = pcmk_rc_ok; } event_done(data, controld_api); } static void pacemakerd_event_cb(pcmk_ipc_api_t *pacemakerd_api, enum pcmk_ipc_event event_type, crm_exit_t status, void *event_data, void *user_data) { data_t *data = user_data; pcmk__output_t *out = data->out; pcmk_pacemakerd_api_reply_t *reply = event_data; switch (event_type) { case pcmk_ipc_event_disconnect: if (data->rc == ECONNRESET) { // Unexpected out->err(out, "error: Lost connection to pacemakerd"); } event_done(data, pacemakerd_api); return; case pcmk_ipc_event_reply: break; default: return; } if (data->message_timer_id != 0) { g_source_remove(data->message_timer_id); data->message_timer_id = 0; } if (status != CRM_EX_OK) { out->err(out, "error: Bad reply from pacemakerd: %s", crm_exit_str(status)); event_done(data, pacemakerd_api); data->rc = EBADMSG; return; } if (reply->reply_type != pcmk_pacemakerd_reply_ping) { out->err(out, "error: Unknown reply type %d from pacemakerd", reply->reply_type); event_done(data, pacemakerd_api); data->rc = EBADMSG; return; } // Parse desired information from reply data->pcmkd_state = reply->data.ping.state; if (reply->data.ping.status == pcmk_rc_ok) { crm_time_t *when = crm_time_new(NULL); char *when_s = NULL; crm_time_set_timet(when, &reply->data.ping.last_good); when_s = crm_time_as_string(when, crm_time_log_date |crm_time_log_timeofday |crm_time_log_with_timezone); out->message(out, "pacemakerd-health", reply->data.ping.sys_from, reply->data.ping.state, NULL, when_s); crm_time_free(when); free(when_s); } else { out->message(out, "pacemakerd-health", reply->data.ping.sys_from, reply->data.ping.state, "query failed", NULL); } data->rc = pcmk_rc_ok; event_done(data, pacemakerd_api); } static pcmk_ipc_api_t * -ipc_connect(data_t *data, enum pcmk_ipc_server server, pcmk_ipc_callback_t cb) +ipc_connect(data_t *data, enum pcmk_ipc_server server, pcmk_ipc_callback_t cb, + enum pcmk_ipc_dispatch dispatch_type) { int rc; pcmk__output_t *out = data->out; pcmk_ipc_api_t *api = NULL; - rc = pcmk_new_ipc_api(&api, server); if (api == NULL) { out->err(out, "error: Could not connect to %s: %s", pcmk_ipc_name(api, true), pcmk_rc_str(rc)); data->rc = rc; return NULL; } if (cb != NULL) { pcmk_register_ipc_callback(api, cb, data); } - rc = pcmk_connect_ipc(api, pcmk_ipc_dispatch_main); + + rc = pcmk_connect_ipc(api, dispatch_type); if (rc != pcmk_rc_ok) { out->err(out, "error: Could not connect to %s: %s", pcmk_ipc_name(api, true), pcmk_rc_str(rc)); data->rc = rc; pcmk_free_ipc_api(api); return NULL; } return api; } int pcmk__controller_status(pcmk__output_t *out, char *dest_node, guint message_timeout_ms) { data_t data = { .out = out, .mainloop = NULL, .rc = pcmk_rc_ok, .message_timer_id = 0, .message_timeout_ms = message_timeout_ms, .pcmkd_state = pcmk_pacemakerd_state_invalid, }; - pcmk_ipc_api_t *controld_api = ipc_connect(&data, pcmk_ipc_controld, controller_status_event_cb); + enum pcmk_ipc_dispatch dispatch_type = pcmk_ipc_dispatch_main; + pcmk_ipc_api_t *controld_api = NULL; + + if (message_timeout_ms == 0) { + dispatch_type = pcmk_ipc_dispatch_sync; + } + controld_api = ipc_connect(&data, pcmk_ipc_controld, + controller_status_event_cb, dispatch_type); if (controld_api != NULL) { int rc = pcmk_controld_api_ping(controld_api, dest_node); if (rc != pcmk_rc_ok) { - out->err(out, "error: Command failed: %s", pcmk_rc_str(rc)); + out->err(out, "error: Could not ping controller API: %s", + pcmk_rc_str(rc)); data.rc = rc; } - start_main_loop(&data); + if (dispatch_type == pcmk_ipc_dispatch_main) { + start_main_loop(&data); + } pcmk_free_ipc_api(controld_api); } return data.rc; } int pcmk_controller_status(xmlNodePtr *xml, char *dest_node, unsigned int message_timeout_ms) { pcmk__output_t *out = NULL; int rc = pcmk_rc_ok; rc = pcmk__xml_output_new(&out, xml); if (rc != pcmk_rc_ok) { return rc; } pcmk__register_lib_messages(out); rc = pcmk__controller_status(out, dest_node, (guint) message_timeout_ms); pcmk__xml_output_finish(out, xml); return rc; } int pcmk__designated_controller(pcmk__output_t *out, guint message_timeout_ms) { data_t data = { .out = out, .mainloop = NULL, .rc = pcmk_rc_ok, .message_timer_id = 0, .message_timeout_ms = message_timeout_ms, .pcmkd_state = pcmk_pacemakerd_state_invalid, }; - pcmk_ipc_api_t *controld_api = ipc_connect(&data, pcmk_ipc_controld, designated_controller_event_cb); + enum pcmk_ipc_dispatch dispatch_type = pcmk_ipc_dispatch_main; + pcmk_ipc_api_t *controld_api = NULL; + + if (message_timeout_ms == 0) { + dispatch_type = pcmk_ipc_dispatch_sync; + } + controld_api = ipc_connect(&data, pcmk_ipc_controld, + designated_controller_event_cb, dispatch_type); if (controld_api != NULL) { int rc = pcmk_controld_api_ping(controld_api, NULL); if (rc != pcmk_rc_ok) { - out->err(out, "error: Command failed: %s", pcmk_rc_str(rc)); + out->err(out, "error: Could not ping controller API: %s", + pcmk_rc_str(rc)); data.rc = rc; } - start_main_loop(&data); + if (dispatch_type == pcmk_ipc_dispatch_main) { + start_main_loop(&data); + } pcmk_free_ipc_api(controld_api); } return data.rc; } int pcmk_designated_controller(xmlNodePtr *xml, unsigned int message_timeout_ms) { pcmk__output_t *out = NULL; int rc = pcmk_rc_ok; rc = pcmk__xml_output_new(&out, xml); if (rc != pcmk_rc_ok) { return rc; } pcmk__register_lib_messages(out); rc = pcmk__designated_controller(out, (guint) message_timeout_ms); pcmk__xml_output_finish(out, xml); return rc; } /*! * \internal * \brief Get and output \p pacemakerd status * * \param[in,out] out Output object * \param[in] ipc_name IPC name for request - * \param[in] message_timeout_ms Message timeout + * \param[in] message_timeout_ms How long to wait for a reply from the + * \p pacemakerd API. If 0, + * \p pcmk_ipc_dispatch_sync will be used. + * If positive, \p pcmk_ipc_dispatch_main + * will be used, and a new mainloop will be + * created for this purpose (freed before + * return). * \param[out] state Where to store the \p pacemakerd state, if * not \p NULL * * \return Standard Pacemaker return code */ int pcmk__pacemakerd_status(pcmk__output_t *out, const char *ipc_name, guint message_timeout_ms, enum pcmk_pacemakerd_state *state) { data_t data = { .out = out, .mainloop = NULL, .rc = pcmk_rc_ipc_unresponsive, .message_timer_id = 0, .message_timeout_ms = message_timeout_ms, .pcmkd_state = pcmk_pacemakerd_state_invalid, }; - pcmk_ipc_api_t *pacemakerd_api = ipc_connect(&data, pcmk_ipc_pacemakerd, pacemakerd_event_cb); + enum pcmk_ipc_dispatch dispatch_type = pcmk_ipc_dispatch_main; + pcmk_ipc_api_t *pacemakerd_api = NULL; + + if (message_timeout_ms == 0) { + dispatch_type = pcmk_ipc_dispatch_sync; + } + pacemakerd_api = ipc_connect(&data, pcmk_ipc_pacemakerd, + pacemakerd_event_cb, dispatch_type); if (pacemakerd_api != NULL) { int rc = pcmk_pacemakerd_api_ping(pacemakerd_api, ipc_name); if (rc != pcmk_rc_ok) { - out->err(out, "error: Command failed: %s", pcmk_rc_str(rc)); + out->err(out, "error: Could not ping launcher API: %s", + pcmk_rc_str(rc)); data.rc = rc; } - start_main_loop(&data); - + if (dispatch_type == pcmk_ipc_dispatch_main) { + start_main_loop(&data); + } pcmk_free_ipc_api(pacemakerd_api); } if (state != NULL) { *state = data.pcmkd_state; } return data.rc; } // Documented in header int pcmk_pacemakerd_status(xmlNodePtr *xml, const char *ipc_name, unsigned int message_timeout_ms) { pcmk__output_t *out = NULL; int rc = pcmk_rc_ok; rc = pcmk__xml_output_new(&out, xml); if (rc != pcmk_rc_ok) { return rc; } pcmk__register_lib_messages(out); rc = pcmk__pacemakerd_status(out, ipc_name, (guint) message_timeout_ms, NULL); pcmk__xml_output_finish(out, xml); return rc; } /* user data for looping through remote node xpath searches */ struct node_data { pcmk__output_t *out; int found; const char *field; /* XML attribute to check for node name */ const char *type; gboolean bash_export; }; static void remote_node_print_helper(xmlNode *result, void *user_data) { struct node_data *data = user_data; pcmk__output_t *out = data->out; const char *name = crm_element_value(result, XML_ATTR_UNAME); const char *id = crm_element_value(result, data->field); // node name and node id are the same for remote/guest nodes out->message(out, "crmadmin-node", data->type, name ? name : id, id, data->bash_export); data->found++; } // \return Standard Pacemaker return code int pcmk__list_nodes(pcmk__output_t *out, char *node_types, gboolean bash_export) { xmlNode *xml_node = NULL; int rc; rc = cib__signon_query(NULL, &xml_node); if (rc == pcmk_rc_ok) { struct node_data data = { .out = out, .found = 0, .bash_export = bash_export }; out->begin_list(out, NULL, NULL, "nodes"); if (!pcmk__str_empty(node_types) && strstr(node_types, "all")) { node_types = NULL; } if (pcmk__str_empty(node_types) || strstr(node_types, "cluster")) { data.field = "id"; data.type = "cluster"; crm_foreach_xpath_result(xml_node, PCMK__XP_MEMBER_NODE_CONFIG, remote_node_print_helper, &data); } if (pcmk__str_empty(node_types) || strstr(node_types, "guest")) { data.field = "value"; data.type = "guest"; crm_foreach_xpath_result(xml_node, PCMK__XP_GUEST_NODE_CONFIG, remote_node_print_helper, &data); } if (pcmk__str_empty(node_types) || !pcmk__strcmp(node_types, ",|^remote", pcmk__str_regex)) { data.field = "id"; data.type = "remote"; crm_foreach_xpath_result(xml_node, PCMK__XP_REMOTE_NODE_CONFIG, remote_node_print_helper, &data); } out->end_list(out); if (data.found == 0) { out->info(out, "No nodes configured"); } free_xml(xml_node); } return rc; } int pcmk_list_nodes(xmlNodePtr *xml, char *node_types) { pcmk__output_t *out = NULL; int rc = pcmk_rc_ok; rc = pcmk__xml_output_new(&out, xml); if (rc != pcmk_rc_ok) { return rc; } pcmk__register_lib_messages(out); rc = pcmk__list_nodes(out, node_types, FALSE); pcmk__xml_output_finish(out, xml); return rc; }