diff --git a/include/crm/lrmd.h b/include/crm/lrmd.h index 612ec8d8fd..59259b7e51 100644 --- a/include/crm/lrmd.h +++ b/include/crm/lrmd.h @@ -1,549 +1,548 @@ /* * Copyright 2012-2024 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__CRM_LRMD__H # define PCMK__CRM_LRMD__H #include // bool #include // guint, GList #include #include #include #ifdef __cplusplus extern "C" { #endif /** * \file * \brief Resource agent executor * \ingroup lrmd */ typedef struct lrmd_s lrmd_t; typedef struct lrmd_key_value_s { char *key; char *value; struct lrmd_key_value_s *next; } lrmd_key_value_t; /* The major version should be bumped every time there is an incompatible * change that prevents older clients from connecting to this version of * the server. The minor version indicates feature support. * * Protocol Pacemaker Significant changes * -------- --------- ------------------- * 1.2 2.1.8 PCMK__CIB_REQUEST_SCHEMAS */ #define LRMD_PROTOCOL_VERSION "1.2" #define LRMD_SUPPORTS_SCHEMA_XFER(x) (compare_version((x), "1.2") >= 0) /* The major protocol version the client and server both need to support for * the connection to be successful. This should only ever be the major * version - not a complete version number. */ #define LRMD_COMPATIBLE_PROTOCOL "1" /* \deprecated Do not use (will be removed in a future release) * * This is the version that the client version will actually be compared * against. This should be identical to LRMD_PROTOCOL_VERSION. However, we * accidentally bumped LRMD_PROTOCOL_VERSION in 6424a647 (1.1.15) when we didn't * need to, so for now it's different. If we ever have a truly incompatible * bump, we can drop this and compare against LRMD_PROTOCOL_VERSION. */ #define LRMD_MIN_PROTOCOL_VERSION "1.0" /* *INDENT-OFF* */ #define DEFAULT_REMOTE_KEY_LOCATION PACEMAKER_CONFIG_DIR "/authkey" #define ALT_REMOTE_KEY_LOCATION "/etc/corosync/authkey" #define DEFAULT_REMOTE_PORT 3121 #define DEFAULT_REMOTE_USERNAME "lrmd" -#define F_LRMD_RSC_ACTION "lrmd_rsc_action" #define F_LRMD_RSC_USERDATA_STR "lrmd_rsc_userdata_str" #define F_LRMD_RSC_OUTPUT "lrmd_rsc_output" #define F_LRMD_RSC_EXIT_REASON "lrmd_rsc_exit_reason" #define F_LRMD_RSC_START_DELAY "lrmd_rsc_start_delay" #define F_LRMD_RSC_INTERVAL "lrmd_rsc_interval" #define F_LRMD_RSC_DELETED "lrmd_rsc_deleted" #define F_LRMD_RSC "lrmd_rsc" #define F_LRMD_ALERT_ID "lrmd_alert_id" #define F_LRMD_ALERT_PATH "lrmd_alert_path" #define F_LRMD_ALERT "lrmd_alert" #define LRMD_OP_RSC_REG "lrmd_rsc_register" #define LRMD_OP_RSC_EXEC "lrmd_rsc_exec" #define LRMD_OP_RSC_CANCEL "lrmd_rsc_cancel" #define LRMD_OP_RSC_UNREG "lrmd_rsc_unregister" #define LRMD_OP_RSC_INFO "lrmd_rsc_info" #define LRMD_OP_RSC_METADATA "lrmd_rsc_metadata" #define LRMD_OP_POKE "lrmd_rsc_poke" #define LRMD_OP_NEW_CLIENT "lrmd_rsc_new_client" #define LRMD_OP_CHECK "lrmd_check" #define LRMD_OP_ALERT_EXEC "lrmd_alert_exec" #define LRMD_OP_GET_RECURRING "lrmd_get_recurring" #define LRMD_IPC_OP_NEW "new" #define LRMD_IPC_OP_DESTROY "destroy" #define LRMD_IPC_OP_EVENT "event" #define LRMD_IPC_OP_REQUEST "request" #define LRMD_IPC_OP_RESPONSE "response" #define LRMD_IPC_OP_SHUTDOWN_REQ "shutdown_req" #define LRMD_IPC_OP_SHUTDOWN_ACK "shutdown_ack" #define LRMD_IPC_OP_SHUTDOWN_NACK "shutdown_nack" #define F_LRMD_IPC_OP "lrmd_ipc_op" #define F_LRMD_IPC_IPC_SERVER "lrmd_ipc_server" #define F_LRMD_IPC_SESSION "lrmd_ipc_session" #define F_LRMD_IPC_CLIENT "lrmd_ipc_client" #define F_LRMD_IPC_USER "lrmd_ipc_user" #define F_LRMD_IPC_MSG "lrmd_ipc_msg" #define F_LRMD_IPC_MSG_ID "lrmd_ipc_msg_id" #define F_LRMD_IPC_MSG_FLAGS "lrmd_ipc_msg_flags" #define T_LRMD "lrmd" #define T_LRMD_REPLY "lrmd_reply" #define T_LRMD_NOTIFY "lrmd_notify" #define T_LRMD_IPC_PROXY "lrmd_ipc_proxy" #define T_LRMD_RSC_OP "lrmd_rsc_op" /* *INDENT-ON* */ /*! * \brief Create a new connection to the local executor */ lrmd_t *lrmd_api_new(void); /*! * \brief Create a new TLS connection to a remote executor * * \param[in] nodename Name of remote node identified with this connection * \param[in] server Hostname to connect to * \param[in] port Port number to connect to (or 0 to use default) * * \return Newly created executor connection object * \note If only one of \p nodename and \p server is non-NULL, it will be used * for both purposes. If both are NULL, a local IPC connection will be * created instead. */ lrmd_t *lrmd_remote_api_new(const char *nodename, const char *server, int port); /*! * \brief Use after lrmd_poll returns 1 to read and dispatch a message * * \param[in,out] lrmd Executor connection object * * \return TRUE if connection is still up, FALSE if disconnected */ bool lrmd_dispatch(lrmd_t *lrmd); /*! * \brief Check whether a message is available on an executor connection * * \param[in,out] lrmd Executor connection object to check * \param[in] timeout Currently ignored * * \retval 1 Message is ready * \retval 0 Timeout occurred * \retval negative errno Error occurred * * \note This is intended for callers that do not use a main loop. */ int lrmd_poll(lrmd_t *lrmd, int timeout); /*! * \brief Destroy executor connection object * * \param[in,out] lrmd Executor connection object to destroy */ void lrmd_api_delete(lrmd_t *lrmd); lrmd_key_value_t *lrmd_key_value_add(lrmd_key_value_t * kvp, const char *key, const char *value); enum lrmd_call_options { lrmd_opt_none = 0, //! Notify only the client that made the request (rather than all clients) lrmd_opt_notify_orig_only = (1 << 1), /*! * Drop recurring operations initiated by a client when the client * disconnects. This option is only valid when registering a resource. When * used with a connection to a remote executor, recurring operations will be * dropped once all remote connections disconnect. * * @COMPAT This is broken, because these values should be unique bits, and * this value overlaps lrmd_opt_notify_orig_only (0x02). The impact is low * since this value is used only with registration requests and the other * one is used only with execution requests. Regardless, when we can break * API compatibility, this should be changed to (1 << 0) or (1 << 3). */ lrmd_opt_drop_recurring = 0x00000003, //! Send notifications for recurring operations only when the result changes lrmd_opt_notify_changes_only = (1 << 2), }; typedef struct lrmd_rsc_info_s { char *id; char *type; char *standard; char *provider; } lrmd_rsc_info_t; typedef struct lrmd_op_info_s { char *rsc_id; char *action; char *interval_ms_s; char *timeout_ms_s; } lrmd_op_info_t; lrmd_rsc_info_t *lrmd_new_rsc_info(const char *rsc_id, const char *standard, const char *provider, const char *type); lrmd_rsc_info_t *lrmd_copy_rsc_info(lrmd_rsc_info_t * rsc_info); void lrmd_free_rsc_info(lrmd_rsc_info_t * rsc_info); void lrmd_free_op_info(lrmd_op_info_t *op_info); typedef void (*lrmd_event_callback) (lrmd_event_data_t * event); typedef struct lrmd_list_s { const char *val; struct lrmd_list_s *next; } lrmd_list_t; void lrmd_list_freeall(lrmd_list_t * head); void lrmd_key_value_freeall(lrmd_key_value_t * head); typedef struct lrmd_api_operations_s { /*! * \brief Connect to an executor * * \param[in,out] lrmd Executor connection object * \param[in] client_name Arbitrary identifier to pass to server * \param[out] fd If not NULL, where to store file descriptor * for connection's socket * * \return Legacy Pacemaker return code */ int (*connect) (lrmd_t *lrmd, const char *client_name, int *fd); /*! * \brief Initiate an executor connection without blocking * * \param[in,out] lrmd Executor connection object * \param[in] client_name Arbitrary identifier to pass to server * \param[in] timeout Error if not connected within this time * (milliseconds) * * \return Legacy Pacemaker return code (if pcmk_ok, the event callback will * be called later with the result) * \note This function requires a mainloop. */ int (*connect_async) (lrmd_t *lrmd, const char *client_name, int timeout /*ms */ ); /*! * \brief Check whether connection to executor daemon is (still) active * * \param[in,out] lrmd Executor connection object to check * * \return 1 if the executor connection is active, 0 otherwise */ int (*is_connected) (lrmd_t *lrmd); /*! * \brief Poke executor connection to verify it is still active * * \param[in,out] lrmd Executor connection object to check * * \return Legacy Pacemaker return code (if pcmk_ok, the event callback will * be called later with the result) * \note The response comes in the form of a poke event to the callback. * */ int (*poke_connection) (lrmd_t *lrmd); /*! * \brief Disconnect from the executor. * * \param[in,out] lrmd Executor connection object to disconnect * * \return Legacy Pacemaker return code */ int (*disconnect) (lrmd_t *lrmd); /*! * \brief Register a resource with the executor * * \param[in,out] lrmd Executor connection object * \param[in] rsc_id ID of resource to register * \param[in] standard Resource's resource agent standard * \param[in] provider Resource's resource agent provider (or NULL) * \param[in] agent Resource's resource agent name * \param[in] options Group of enum lrmd_call_options flags * * \note Synchronous, guaranteed to occur in daemon before function returns. * * \return Legacy Pacemaker return code */ int (*register_rsc) (lrmd_t *lrmd, const char *rsc_id, const char *standard, const char *provider, const char *agent, enum lrmd_call_options options); /*! * \brief Retrieve a resource's registration information * * \param[in,out] lrmd Executor connection object * \param[in] rsc_id ID of resource to check * \param[in] options Group of enum lrmd_call_options flags * * \return Resource information on success, otherwise NULL */ lrmd_rsc_info_t *(*get_rsc_info) (lrmd_t *lrmd, const char *rsc_id, enum lrmd_call_options options); /*! * \brief Retrieve recurring operations registered for a resource * * \param[in,out] lrmd Executor connection object * \param[in] rsc_id ID of resource to check * \param[in] timeout_ms Error if not completed within this time * \param[in] options Group of enum lrmd_call_options flags * \param[out] output Where to store list of lrmd_op_info_t * * \return Legacy Pacemaker return code */ int (*get_recurring_ops) (lrmd_t *lrmd, const char *rsc_id, int timeout_ms, enum lrmd_call_options options, GList **output); /*! * \brief Unregister a resource from the executor * * \param[in,out] lrmd Executor connection object * \param[in] rsc_id ID of resource to unregister * \param[in] options Group of enum lrmd_call_options flags * * \return Legacy Pacemaker return code (of particular interest, EINPROGRESS * means that operations are in progress for the resource, and the * unregistration will be done when they complete) * \note Pending and recurring operations will be cancelled. * \note Synchronous, guaranteed to occur in daemon before function returns. * */ int (*unregister_rsc) (lrmd_t *lrmd, const char *rsc_id, enum lrmd_call_options options); /*! * \brief Set a callback for executor events * * \param[in,out] lrmd Executor connection object * \param[in] callback Callback to set */ void (*set_callback) (lrmd_t *lrmd, lrmd_event_callback callback); /*! * \brief Request execution of a resource action * * \param[in,out] lrmd Executor connection object * \param[in] rsc_id ID of resource * \param[in] action Name of resource action to execute * \param[in] userdata Arbitrary string to pass to event callback * \param[in] interval_ms If 0, execute action once, otherwise * recurring at this interval (in milliseconds) * \param[in] timeout Error if not complete within this time (in * milliseconds) * \param[in] start_delay Wait this long before execution (in * milliseconds) * \param[in] options Group of enum lrmd_call_options flags * \param[in,out] params Parameters to pass to agent (will be freed) * * \return A call ID for the action on success (in which case the action is * queued in the executor, and the event callback will be called * later with the result), otherwise a negative legacy Pacemaker * return code * \note exec() and cancel() operations on an individual resource are * guaranteed to occur in the order the client API is called. However, * operations on different resources are not guaranteed to occur in * any specific order. */ int (*exec) (lrmd_t *lrmd, const char *rsc_id, const char *action, const char *userdata, guint interval_ms, int timeout, int start_delay, enum lrmd_call_options options, lrmd_key_value_t *params); /*! * \brief Cancel a recurring resource action * * \param[in,out] lrmd Executor connection object * \param[in] rsc_id ID of resource * \param[in] action Name of resource action to cancel * \param[in] interval_ms Action's interval (in milliseconds) * * \return Legacy Pacemaker return code (if pcmk_ok, cancellation is queued * on function return, and the event callback will be called later * with an exec_complete event with an lrmd_op_status signifying * that the operation is cancelled) * * \note exec() and cancel() operations on an individual resource are * guaranteed to occur in the order the client API is called. However, * operations on different resources are not guaranteed to occur in * any specific order. */ int (*cancel) (lrmd_t *lrmd, const char *rsc_id, const char *action, guint interval_ms); /*! * \brief Retrieve resource agent metadata synchronously * * \param[in] lrmd Executor connection (unused) * \param[in] standard Resource agent class * \param[in] provider Resource agent provider * \param[in] agent Resource agent type * \param[out] output Where to store metadata (must not be NULL) * \param[in] options Group of enum lrmd_call_options flags (unused) * * \return Legacy Pacemaker return code * * \note Caller is responsible for freeing output. This call is always * synchronous (blocking), and always done directly by the library * (not via the executor connection). This means that it is based on * the local host environment, even if the executor connection is to a * remote node, so this may fail if the agent is not installed * locally. This also means that, if an external agent must be * executed, it will be executed by the caller's user, not the * executor's. */ int (*get_metadata) (lrmd_t *lrmd, const char *standard, const char *provider, const char *agent, char **output, enum lrmd_call_options options); /*! * \brief Retrieve a list of installed resource agents * * \param[in] lrmd Executor connection (unused) * \param[out] agents Where to store agent list (must not be NULL) * \param[in] standard Resource agent standard to list * \param[in] provider Resource agent provider to list (or NULL) * * \return Number of items in list on success, negative legacy Pacemaker * return code otherwise * * \note if standard is not provided, all known agents will be returned * \note list must be freed using lrmd_list_freeall() */ int (*list_agents) (lrmd_t *lrmd, lrmd_list_t **agents, const char *standard, const char *provider); /*! * \brief Retrieve a list of resource agent providers * * \param[in] lrmd Executor connection (unused) * \param[in] agent If not NULL, list providers for this agent only * \param[out] providers Where to store provider list * * \return Number of items in list on success, negative legacy Pacemaker * return code otherwise * \note The caller is responsible for freeing *providers with * lrmd_list_freeall(). */ int (*list_ocf_providers) (lrmd_t *lrmd, const char *agent, lrmd_list_t **providers); /*! * \brief Retrieve a list of supported standards * * \param[in] lrmd Executor connection (unused) * \param[out] standards Where to store standards list * * \return Number of items in list on success, negative legacy Pacemaker * return code otherwise * \note The caller is responsible for freeing *standards with * lrmd_list_freeall(). */ int (*list_standards) (lrmd_t *lrmd, lrmd_list_t **standards); /*! * \brief Execute an alert agent * * \param[in,out] lrmd Executor connection * \param[in] alert_id Name of alert to execute * \param[in] alert_path Full path to alert executable * \param[in] timeout Error if not complete within this many * milliseconds * \param[in,out] params Parameters to pass to agent (will be freed) * * \return Legacy Pacemaker return code (if pcmk_ok, the alert is queued in * the executor, and the event callback will be called later with * the result) * * \note Operations on individual alerts (by ID) are guaranteed to occur in * the order the client API is called. Operations on different alerts * are not guaranteed to occur in any specific order. */ int (*exec_alert) (lrmd_t *lrmd, const char *alert_id, const char *alert_path, int timeout, lrmd_key_value_t *params); /*! * \brief Retrieve resource agent metadata synchronously with parameters * * \param[in] lrmd Executor connection (unused) * \param[in] standard Resource agent class * \param[in] provider Resource agent provider * \param[in] agent Resource agent type * \param[out] output Where to store metadata (must not be NULL) * \param[in] options Group of enum lrmd_call_options flags (unused) * \param[in,out] params Parameters to pass to agent (will be freed) * * \return Legacy Pacemaker return code * * \note This is identical to the get_metadata() API call, except parameters * will be passed to the resource agent via environment variables. */ int (*get_metadata_params) (lrmd_t *lrmd, const char *standard, const char *provider, const char *agent, char **output, enum lrmd_call_options options, lrmd_key_value_t *params); } lrmd_api_operations_t; struct lrmd_s { lrmd_api_operations_t *cmds; void *lrmd_private; }; static inline const char * lrmd_event_type2str(enum lrmd_callback_event type) { switch (type) { case lrmd_event_register: return "register"; case lrmd_event_unregister: return "unregister"; case lrmd_event_exec_complete: return "exec_complete"; case lrmd_event_disconnect: return "disconnect"; case lrmd_event_connect: return "connect"; case lrmd_event_poke: return "poke"; case lrmd_event_new_client: return "new_client"; } return "unknown"; } #ifdef __cplusplus } #endif #endif diff --git a/include/crm/lrmd_compat.h b/include/crm/lrmd_compat.h index 9eaa30f8d0..8658dce87d 100644 --- a/include/crm/lrmd_compat.h +++ b/include/crm/lrmd_compat.h @@ -1,105 +1,108 @@ /* * Copyright 2012-2024 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__CRM_LRMD_COMPAT__H # define PCMK__CRM_LRMD_COMPAT__H #ifdef __cplusplus extern "C" { #endif /** * \file * \brief Deprecated executor utilities * \ingroup core * \deprecated Do not include this header directly. The utilities in this * header, and the header itself, will be removed in a future * release. */ //! \deprecated Do not use #define F_LRMD_OPERATION "lrmd_op" //! \deprecated Do not use #define F_LRMD_CLIENTNAME "lrmd_clientname" //! \deprecated Do not use #define F_LRMD_CALLBACK_TOKEN "lrmd_async_id" //! \deprecated Do not use #define F_LRMD_IS_IPC_PROVIDER "lrmd_is_ipc_provider" //! \deprecated Do not use #define F_LRMD_CLIENTID "lrmd_clientid" //! \deprecated Do not use #define F_LRMD_PROTOCOL_VERSION "lrmd_protocol_version" //! \deprecated Do not use #define F_LRMD_REMOTE_MSG_TYPE "lrmd_remote_msg_type" //! \deprecated Do not use #define F_LRMD_REMOTE_MSG_ID "lrmd_remote_msg_id" //! \deprecated Do not use #define F_LRMD_CALLID "lrmd_callid" //! \deprecated Do not use #define F_LRMD_CALLOPTS "lrmd_callopt" //! \deprecated Do not use #define F_LRMD_CALLDATA "lrmd_calldata" //! \deprecated Do not use #define F_LRMD_RC "lrmd_rc" //! \deprecated Do not use #define F_LRMD_EXEC_RC "lrmd_exec_rc" //! \deprecated Do not use #define F_LRMD_OP_STATUS "lrmd_exec_op_status" //! \deprecated Do not use #define F_LRMD_TIMEOUT "lrmd_timeout" //! \deprecated Do not use #define F_LRMD_WATCHDOG "lrmd_watchdog" //! \deprecated Do not use #define F_LRMD_CLASS "lrmd_class" //! \deprecated Do not use #define F_LRMD_PROVIDER "lrmd_provider" //! \deprecated Do not use #define F_LRMD_TYPE "lrmd_type" //! \deprecated Do not use #define F_LRMD_ORIGIN "lrmd_origin" //! \deprecated Do not use #define F_LRMD_RSC_RUN_TIME "lrmd_run_time" //! \deprecated Do not use #define F_LRMD_RSC_RCCHANGE_TIME "lrmd_rcchange_time" //! \deprecated Do not use #define F_LRMD_RSC_EXEC_TIME "lrmd_exec_time" //! \deprecated Do not use #define F_LRMD_RSC_QUEUE_TIME "lrmd_queue_time" //! \deprecated Do not use #define F_LRMD_RSC_ID "lrmd_rsc_id" +//! \deprecated Do not use +#define F_LRMD_RSC_ACTION "lrmd_rsc_action" + #ifdef __cplusplus } #endif #endif // PCMK__CRM_LRMD_COMPAT__H