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/*
* Copyright 2008-2024 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_COMMON_REMOTE_INTERNAL__H
#define PCMK__CRM_COMMON_REMOTE_INTERNAL__H
#include <stdio.h> // NULL
#include <stdbool.h> // bool
#include <gnutls/gnutls.h> // gnutls_session_t, etc.
#include <libxml/tree.h> // xmlNode
#include <gnutls/gnutls.h> // gnutls_session_t, gnutls_dh_params_t, etc.
#include <crm/common/ipc_internal.h> // pcmk__client_t
#include <crm/common/nodes_internal.h> // pcmk__node_variant_remote, etc.
#include <crm/common/resources_internal.h> // struct pcmk__remote_private
#include <crm/common/scheduler_types.h> // pcmk_node_t
#ifdef __cplusplus
extern "C" {
#endif
// internal functions from remote.c
typedef struct pcmk__remote_s pcmk__remote_t;
int pcmk__remote_send_xml(pcmk__remote_t *remote, const xmlNode *msg);
int pcmk__remote_ready(const pcmk__remote_t *remote, int timeout_ms);
int pcmk__read_remote_message(pcmk__remote_t *remote, int timeout_ms);
xmlNode *pcmk__remote_message_xml(pcmk__remote_t *remote);
int pcmk__connect_remote(const char *host, int port, int timeout_ms,
int *timer_id, int *sock_fd, void *userdata,
void (*callback) (void *userdata, int rc, int sock));
int pcmk__accept_remote_connection(int ssock, int *csock);
void pcmk__sockaddr2str(const void *sa, char *s);
/*!
* \internal
* \brief Check whether a node is a Pacemaker Remote node of any kind
*
* \param[in] node Node to check
*
* \return true if \p node is a remote, guest, or bundle node, otherwise false
*/
static inline bool
pcmk__is_pacemaker_remote_node(const pcmk_node_t *node)
{
return (node != NULL)
&& (node->priv->variant == pcmk__node_variant_remote);
}
/*!
* \internal
* \brief Check whether a node is a remote node
*
* \param[in] node Node to check
*
* \return true if \p node is a remote node, otherwise false
*/
static inline bool
pcmk__is_remote_node(const pcmk_node_t *node)
{
return pcmk__is_pacemaker_remote_node(node)
&& ((node->priv->remote == NULL)
|| (node->priv->remote->priv->launcher == NULL));
}
/*!
* \internal
* \brief Check whether a node is a guest or bundle node
*
* \param[in] node Node to check
*
* \return true if \p node is a guest or bundle node, otherwise false
*/
static inline bool
pcmk__is_guest_or_bundle_node(const pcmk_node_t *node)
{
return pcmk__is_pacemaker_remote_node(node)
&& (node->priv->remote != NULL)
&& (node->priv->remote->priv->launcher != NULL);
}
gnutls_session_t *pcmk__new_tls_session(int csock, unsigned int conn_type,
gnutls_credentials_type_t cred_type,
void *credentials);
int pcmk__init_tls_dh(gnutls_dh_params_t *dh_params);
int pcmk__read_handshake_data(const pcmk__client_t *client);
/*!
* \internal
* \brief Perform client TLS handshake after establishing TCP socket
*
* \param[in,out] remote Newly established remote connection
* \param[in] timeout_sec Abort handshake if not completed within this time
* \param[out] gnutls_rc If this is non-NULL, it will be set to the GnuTLS
* rc (for logging) if this function returns EPROTO,
* otherwise GNUTLS_E_SUCCESS
*
* \return Standard Pacemaker return code
*/
int pcmk__tls_client_handshake(pcmk__remote_t *remote, int timeout_sec,
int *gnutls_rc);
#ifdef __cplusplus
}
#endif
#endif // PCMK__CRM_COMMON_REMOTE_INTERNAL__H

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