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diff --git a/include/crm/common/agents.h b/include/crm/common/agents.h
index d1d67f4e31..8e09b2b67c 100644
--- a/include/crm/common/agents.h
+++ b/include/crm/common/agents.h
@@ -1,71 +1,81 @@
/*
- * Copyright 2017-2021 the Pacemaker project contributors
+ * Copyright 2017-2022 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__CRM_COMMON_AGENTS__H
# define PCMK__CRM_COMMON_AGENTS__H
#ifdef __cplusplus
extern "C" {
#endif
/**
* \file
* \brief API related to resource agents
* \ingroup core
*/
#include <stdint.h> // uint32_t
#include <stdbool.h>
+// Known resource classes
+#define PCMK_RESOURCE_CLASS_OCF "ocf"
+#define PCMK_RESOURCE_CLASS_SERVICE "service"
+#define PCMK_RESOURCE_CLASS_LSB "lsb"
+#define PCMK_RESOURCE_CLASS_SYSTEMD "systemd"
+#define PCMK_RESOURCE_CLASS_UPSTART "upstart"
+#define PCMK_RESOURCE_CLASS_NAGIOS "nagios"
+#define PCMK_RESOURCE_CLASS_STONITH "stonith"
+#define PCMK_RESOURCE_CLASS_ALERT "alert"
+
/* Special stonith-class agent parameters interpreted directly by Pacemaker
* (not including the pcmk_ACTION_{action,retries,timeout} parameters)
*/
#define PCMK_STONITH_ACTION_LIMIT "pcmk_action_limit"
#define PCMK_STONITH_DELAY_BASE "pcmk_delay_base"
#define PCMK_STONITH_DELAY_MAX "pcmk_delay_max"
#define PCMK_STONITH_HOST_ARGUMENT "pcmk_host_argument"
#define PCMK_STONITH_HOST_CHECK "pcmk_host_check"
#define PCMK_STONITH_HOST_LIST "pcmk_host_list"
#define PCMK_STONITH_HOST_MAP "pcmk_host_map"
#define PCMK_STONITH_PROVIDES "provides"
#define PCMK_STONITH_STONITH_TIMEOUT "stonith-timeout"
// OCF Resource Agent API standard version that this Pacemaker supports
#define PCMK_OCF_MAJOR_VERSION "1"
#define PCMK_OCF_MINOR_VERSION "1"
#define PCMK_OCF_VERSION PCMK_OCF_MAJOR_VERSION "." PCMK_OCF_MINOR_VERSION
// Capabilities supported by a resource agent standard
enum pcmk_ra_caps {
pcmk_ra_cap_none = 0,
pcmk_ra_cap_provider = (1 << 0), // Requires provider
pcmk_ra_cap_status = (1 << 1), // Supports status instead of monitor
pcmk_ra_cap_params = (1 << 2), // Supports parameters
pcmk_ra_cap_unique = (1 << 3), // Supports unique clones
pcmk_ra_cap_promotable = (1 << 4), // Supports promotable clones
pcmk_ra_cap_stdin = (1 << 5), // Reads from standard input
pcmk_ra_cap_fence_params = (1 << 6), // Supports pcmk_monitor_timeout, etc.
};
uint32_t pcmk_get_ra_caps(const char *standard);
char *crm_generate_ra_key(const char *standard, const char *provider,
const char *type);
int crm_parse_agent_spec(const char *spec, char **standard, char **provider,
char **type);
bool pcmk_stonith_param(const char *param);
#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
#include <crm/common/agents_compat.h>
#endif
#ifdef __cplusplus
}
#endif
#endif // PCMK__CRM_COMMON_AGENTS__H
diff --git a/include/crm/services.h b/include/crm/services.h
index dcd28d348f..a88077a1c3 100644
--- a/include/crm/services.h
+++ b/include/crm/services.h
@@ -1,426 +1,417 @@
/*
* Copyright 2010-2022 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__CRM_SERVICES__H
# define PCMK__CRM_SERVICES__H
# include <glib.h>
# include <stdio.h>
# include <stdint.h>
# include <string.h>
# include <stdbool.h>
# include <sys/types.h>
# include <crm_config.h> // OCF_ROOT_DIR
-# include "common/results.h"
+# include <crm/common/agents.h>
+# include <crm/common/results.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* \file
* \brief Services API
* \ingroup core
*/
/* TODO: Autodetect these two ?*/
# ifndef SYSTEMCTL
# define SYSTEMCTL "/bin/systemctl"
# endif
-/* Known resource classes */
-#define PCMK_RESOURCE_CLASS_OCF "ocf"
-#define PCMK_RESOURCE_CLASS_SERVICE "service"
-#define PCMK_RESOURCE_CLASS_LSB "lsb"
-#define PCMK_RESOURCE_CLASS_SYSTEMD "systemd"
-#define PCMK_RESOURCE_CLASS_UPSTART "upstart"
-#define PCMK_RESOURCE_CLASS_NAGIOS "nagios"
-#define PCMK_RESOURCE_CLASS_STONITH "stonith"
-#define PCMK_RESOURCE_CLASS_ALERT "alert"
-
/* This is the string passed in the OCF_EXIT_REASON_PREFIX environment variable.
* The stderr output that occurs after this prefix is encountered is considered
* the exit reason for a completed operation.
*/
#define PCMK_OCF_REASON_PREFIX "ocf-exit-reason:"
// Agent version to use if agent doesn't specify one
#define PCMK_DEFAULT_AGENT_VERSION "0.1"
enum lsb_exitcode {
PCMK_LSB_OK = 0,
PCMK_LSB_UNKNOWN_ERROR = 1,
PCMK_LSB_INVALID_PARAM = 2,
PCMK_LSB_UNIMPLEMENT_FEATURE = 3,
PCMK_LSB_INSUFFICIENT_PRIV = 4,
PCMK_LSB_NOT_INSTALLED = 5,
PCMK_LSB_NOT_CONFIGURED = 6,
PCMK_LSB_NOT_RUNNING = 7,
};
// LSB uses different return codes for status actions
enum lsb_status_exitcode {
PCMK_LSB_STATUS_OK = 0,
PCMK_LSB_STATUS_VAR_PID = 1,
PCMK_LSB_STATUS_VAR_LOCK = 2,
PCMK_LSB_STATUS_NOT_RUNNING = 3,
PCMK_LSB_STATUS_UNKNOWN = 4,
/* custom codes should be in the 150-199 range reserved for application use */
PCMK_LSB_STATUS_NOT_INSTALLED = 150,
PCMK_LSB_STATUS_INSUFFICIENT_PRIV = 151,
};
enum nagios_exitcode {
NAGIOS_STATE_OK = 0,
NAGIOS_STATE_WARNING = 1,
NAGIOS_STATE_CRITICAL = 2,
NAGIOS_STATE_UNKNOWN = 3,
/* This is a custom Pacemaker value (not a nagios convention), used as an
* intermediate value between the services library and the executor, so the
* executor can map it to the corresponding OCF code.
*/
NAGIOS_INSUFFICIENT_PRIV = 100,
#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
NAGIOS_STATE_DEPENDENT = 4, //! \deprecated Unused
NAGIOS_NOT_INSTALLED = 101, //! \deprecated Unused
#endif
};
enum svc_action_flags {
/* On timeout, only kill pid, do not kill entire pid group */
SVC_ACTION_LEAVE_GROUP = 0x01,
SVC_ACTION_NON_BLOCKED = 0x02,
};
typedef struct svc_action_private_s svc_action_private_t;
/*!
* \brief Object for executing external actions
*
* \note This object should never be instantiated directly, but instead created
* using one of the constructor functions (resources_action_create() for
* resource agents, services_alert_create() for alert agents, or
* services_action_create_generic() for generic executables). Similarly,
* do not use sizeof() on this struct.
*
* \internal Internally, services__create_resource_action() is preferable to
* resources_action_create().
*/
typedef struct svc_action_s {
/*! Operation key (<resource>_<action>_<interval>) for resource actions,
* XML ID for alert actions, or NULL for generic actions
*/
char *id;
//! XML ID of resource being executed for resource actions, otherwise NULL
char *rsc;
//! Name of action being executed for resource actions, otherwise NULL
char *action;
//! Action interval for recurring resource actions, otherwise 0
guint interval_ms;
//! Resource standard for resource actions, otherwise NULL
char *standard;
//! Resource provider for resource actions that require it, otherwise NULL
char *provider;
//! Resource agent name for resource actions, otherwise NULL
char *agent;
int timeout; //!< Action timeout (in milliseconds)
/*! A hash table of name/value pairs to use as parameters for resource and
* alert actions, otherwise NULL. These will be used to set environment
* variables for non-fencing resource agents and alert agents, and to send
* stdin to fence agents.
*/
GHashTable *params;
int rc; //!< Exit status of action (set by library upon completion)
//!@{
//! This field should be treated as internal to Pacemaker
int pid; // Process ID of child
int cancel; // Whether this is a cancellation of a recurring action
//!@}
int status; //!< Execution status (enum pcmk_exec_status set by library)
/*! Action counter (set by library for resource actions, or by caller
* otherwise)
*/
int sequence;
//!@{
//! This field should be treated as internal to Pacemaker
int expected_rc; // Unused
int synchronous; // Whether execution should be synchronous (blocking)
//!@}
enum svc_action_flags flags; //!< Flag group of enum svc_action_flags
char *stderr_data; //!< Action stderr (set by library)
char *stdout_data; //!< Action stdout (set by library)
void *cb_data; //!< For caller's use (not used by library)
//! This field should be treated as internal to Pacemaker
svc_action_private_t *opaque;
} svc_action_t;
/**
* \brief Get a list of files or directories in a given path
*
* \param[in] root full path to a directory to read
* \param[in] files return list of files if TRUE or directories if FALSE
* \param[in] executable if TRUE and files is TRUE, only return executable files
*
* \return a list of what was found. The list items are char *.
* \note It is the caller's responsibility to free the result with g_list_free_full(list, free).
*/
GList *get_directory_list(const char *root, gboolean files, gboolean executable);
/**
* \brief Get a list of providers
*
* \param[in] standard list providers of this standard (e.g. ocf, lsb, etc.)
*
* \return a list of providers as char * list items (or NULL if standard does not support providers)
* \note The caller is responsible for freeing the result using g_list_free_full(list, free).
*/
GList *resources_list_providers(const char *standard);
/**
* \brief Get a list of resource agents
*
* \param[in] standard list agents using this standard (e.g. ocf, lsb, etc.) (or NULL for all)
* \param[in] provider list agents from this provider (or NULL for all)
*
* \return a list of resource agents. The list items are char *.
* \note The caller is responsible for freeing the result using g_list_free_full(list, free).
*/
GList *resources_list_agents(const char *standard, const char *provider);
/**
* Get list of available standards
*
* \return a list of resource standards. The list items are char *. This list _must_
* be destroyed using g_list_free_full(list, free).
*/
GList *resources_list_standards(void);
/**
* Does the given standard, provider, and agent describe a resource that can exist?
*
* \param[in] standard Which class of agent does the resource belong to?
* \param[in] provider What provides the agent (NULL for most standards)?
* \param[in] agent What is the name of the agent?
*
* \return A boolean
*/
gboolean resources_agent_exists(const char *standard, const char *provider, const char *agent);
/**
* \brief Create a new resource action
*
* \param[in] name Name of resource
* \param[in] standard Resource agent standard (ocf, lsb, etc.)
* \param[in] provider Resource agent provider
* \param[in] agent Resource agent name
* \param[in] action action (start, stop, monitor, etc.)
* \param[in] interval_ms How often to repeat this action (if 0, execute once)
* \param[in] timeout Consider action failed if it does not complete in this many milliseconds
* \param[in] params Action parameters
*
* \return newly allocated action instance
*
* \post After the call, 'params' is owned, and later free'd by the svc_action_t result
* \note The caller is responsible for freeing the return value using
* services_action_free().
*/
svc_action_t *resources_action_create(const char *name, const char *standard,
const char *provider, const char *agent,
const char *action, guint interval_ms,
int timeout /* ms */, GHashTable *params,
enum svc_action_flags flags);
/**
* Kick a recurring action so it is scheduled immediately for re-execution
*/
gboolean services_action_kick(const char *name, const char *action,
guint interval_ms);
const char *resources_find_service_class(const char *agent);
/**
* Utilize services API to execute an arbitrary command.
*
* This API has useful infrastructure in place to be able to run a command
* in the background and get notified via a callback when the command finishes.
*
* \param[in] exec command to execute
* \param[in] args arguments to the command, NULL terminated
*
* \return a svc_action_t object, used to pass to the execute function
* (services_action_sync() or services_action_async()) and is
* provided to the callback.
*/
svc_action_t *services_action_create_generic(const char *exec, const char *args[]);
void services_action_cleanup(svc_action_t * op);
void services_action_free(svc_action_t * op);
int services_action_user(svc_action_t *op, const char *user);
gboolean services_action_sync(svc_action_t * op);
/**
* \brief Run an action asynchronously, with callback after process is forked
*
* \param[in] op Action to run
* \param[in] action_callback Function to call when the action completes
* (if NULL, any previously set callback will
* continue to be used)
* \param[in] action_fork_callback Function to call after action process forks
* (if NULL, any previously set callback will
* continue to be used)
*
* \return Boolean value
*
* \retval TRUE if the caller should not free or otherwise use \p op again,
* because one of these conditions is true:
*
* * \p op is NULL.
* * The action was successfully initiated, in which case
* \p action_fork_callback has been called, but \p action_callback has
* not (it will be called when the action completes).
* * The action's ID matched an existing recurring action. The existing
* action has taken over the callback and callback data from \p op
* and has been re-initiated asynchronously, and \p op has been freed.
* * Another action for the same resource is in flight, and \p op will
* be blocked until it completes.
* * The action could not be initiated, and is either non-recurring or
* being cancelled. \p action_fork_callback has not been called, but
* \p action_callback has, and \p op has been freed.
*
* \retval FALSE if \op is still valid, because the action cannot be initiated,
* and is a recurring action that is not being cancelled.
* \p action_fork_callback has not been called, but \p action_callback
* has, and a timer has been set for the next invocation of \p op.
*/
gboolean services_action_async_fork_notify(svc_action_t *op,
void (*action_callback) (svc_action_t *),
void (*action_fork_callback) (svc_action_t *));
/**
* \brief Run an action asynchronously
*
* \param[in] op Action to run
* \param[in] action_callback Function to call when the action completes
* (if NULL, any previously set callback will
* continue to be used)
*
* \return Boolean value
*
* \retval TRUE if the caller should not free or otherwise use \p op again,
* because one of these conditions is true:
*
* * \p op is NULL.
* * The action was successfully initiated, in which case
* \p action_callback has not been called (it will be called when the
* action completes).
* * The action's ID matched an existing recurring action. The existing
* action has taken over the callback and callback data from \p op
* and has been re-initiated asynchronously, and \p op has been freed.
* * Another action for the same resource is in flight, and \p op will
* be blocked until it completes.
* * The action could not be initiated, and is either non-recurring or
* being cancelled. \p action_callback has been called, and \p op has
* been freed.
*
* \retval FALSE if \op is still valid, because the action cannot be initiated,
* and is a recurring action that is not being cancelled.
* \p action_callback has been called, and a timer has been set for the
* next invocation of \p op.
*/
gboolean services_action_async(svc_action_t *op,
void (*action_callback) (svc_action_t *));
gboolean services_action_cancel(const char *name, const char *action,
guint interval_ms);
/* functions for alert agents */
svc_action_t *services_alert_create(const char *id, const char *exec,
int timeout, GHashTable *params,
int sequence, void *cb_data);
gboolean services_alert_async(svc_action_t *action,
void (*cb)(svc_action_t *op));
enum ocf_exitcode services_result2ocf(const char *standard, const char *action,
int exit_status);
static inline const char *services_ocf_exitcode_str(enum ocf_exitcode code) {
switch (code) {
case PCMK_OCF_OK:
return "ok";
case PCMK_OCF_UNKNOWN_ERROR:
return "error";
case PCMK_OCF_INVALID_PARAM:
return "invalid parameter";
case PCMK_OCF_UNIMPLEMENT_FEATURE:
return "unimplemented feature";
case PCMK_OCF_INSUFFICIENT_PRIV:
return "insufficient privileges";
case PCMK_OCF_NOT_INSTALLED:
return "not installed";
case PCMK_OCF_NOT_CONFIGURED:
return "not configured";
case PCMK_OCF_NOT_RUNNING:
return "not running";
case PCMK_OCF_RUNNING_PROMOTED:
return "promoted";
case PCMK_OCF_FAILED_PROMOTED:
return "promoted (failed)";
case PCMK_OCF_DEGRADED:
return "OCF_DEGRADED";
case PCMK_OCF_DEGRADED_PROMOTED:
return "promoted (degraded)";
#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
case PCMK_OCF_NOT_SUPPORTED:
return "not supported (DEPRECATED STATUS)";
case PCMK_OCF_CANCELLED:
return "cancelled (DEPRECATED STATUS)";
case PCMK_OCF_OTHER_ERROR:
return "other error (DEPRECATED STATUS)";
case PCMK_OCF_SIGNAL:
return "interrupted by signal (DEPRECATED STATUS)";
case PCMK_OCF_PENDING:
return "pending (DEPRECATED STATUS)";
case PCMK_OCF_TIMEOUT:
return "timeout (DEPRECATED STATUS)";
#endif
default:
return "unknown";
}
}
#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
#include <crm/services_compat.h>
#endif
# ifdef __cplusplus
}
# endif
#endif /* __PCMK_SERVICES__ */
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