ed_username_t
{
  /** Username */
  const char *username;
  /** Indicates if the credentials may be saved (to disk). For example, a
   * GUI prompt implementation with a remember username checkbox shall set
   * @a may_save to TRUE if the checkbox is checked.
   */
  svn_boolean_t may_save;
} svn_auth_cred_username_t;


/** SSL client certificate credential type.
 *
 * The following auth parameters are available to the providers:
 *
 * - @c SVN_AUTH_PARAM_CONFIG_CATEGORY_SERVERS (@c svn_config_t*)
 * - @c SVN_AUTH_PARAM_SERVER_GROUP (@c char*)
 *
 * The following optional auth parameters are relevant to the providers:
 *
 * - @c SVN_AUTH_PARAM_NO_AUTH_CACHE (@c void*)
 */
#define SVN_AUTH_CRED_SSL_CLIENT_CERT "svn.ssl.client-cert"

/** @c SVN_AUTH_CRED_SSL_CLIENT_CERT credentials. */
typedef struct svn_auth_cred_ssl_client_cert_t
{
  /** Absolute path to the certificate file */
  const char *cert_file;
  /** Indicates if the credentials may be saved (to disk). For example, a
   * GUI prompt implementation with a remember certificate checkbox shall
   * set @a may_save to TRUE if the checkbox is checked.
   */
  svn_boolean_t may_save;
} svn_auth_cred_ssl_client_cert_t;


/** A function returning an SSL client certificate passphrase provider. */
typedef void (*svn_auth_ssl_client_cert_pw_provider_func_t)(
  svn_auth_provider_object_t **provider,
  apr_pool_t *pool);

/** SSL client certificate passphrase credential type.
 *
 * @note The realmstring used with this credential type must be a name that
 * makes it possible for the user to identify the certificate.
 *
 * The following auth parameters are available to the providers:
 *
 * - @c SVN_AUTH_PARAM_CONFIG_CATEGORY_CONFIG (@c svn_config_t*)
 * - @c SVN_AUTH_PARAM_CONFIG_CATEGORY_SERVERS (@c svn_config_t*)
 * - @c SVN_AUTH_PARAM_SERVER_GROUP (@c char*)
 *
 * The following optional auth parameters are relevant to the providers:
 *
 * - @c SVN_AUTH_PARAM_NO_AUTH_CACHE (@c void*)
 */
#define SVN_AUTH_CRED_SSL_CLIENT_CERT_PW "svn.ssl.client-passphrase"

/** @c SVN_AUTH_CRED_SSL_CLIENT_CERT_PW credentials. */
typedef struct svn_auth_cred_ssl_client_cert_pw_t
{
  /** Certificate password */
  const char *password;
  /** Indicates if the credentials may be saved (to disk). For example, a
   * GUI prompt implementation with a remember password checkbox shall set
   * @a may_save to TRUE if the checkbox is checked.
   */
  svn_boolean_t may_save;
} svn_auth_cred_ssl_client_cert_pw_t;


/** SSL server verification credential type.
 *
 * The following auth parameters are available to the providers:
 *
 * - @c SVN_AUTH_PARAM_CONFIG_CATEGORY_SERVERS (@c svn_config_t*)
 * - @c SVN_AUTH_PARAM_SERVER_GROUP (@c char*)
 * - @c SVN_AUTH_PARAM_SSL_SERVER_FAILURES (@c apr_uint32_t*)
 * - @c SVN_AUTH_PARAM_SSL_SERVER_CERT_INFO
 *      (@c svn_auth_ssl_server_cert_info_t*)
 *
 * The following optional auth parameters are relevant to the providers:
 *
 * - @c SVN_AUTH_PARAM_NO_AUTH_CACHE (@c void*)
 */
#define SVN_AUTH_CRED_SSL_SERVER_TRUST "svn.ssl.server"

/** SSL server certificate information used by @c
 * SVN_AUTH_CRED_SSL_SERVER_TRUST providers.
 */
typedef struct svn_auth_ssl_server_cert_info_t
{
  /** Primary CN */
  const char *hostname;
  /** ASCII fingerprint */
  const char *fingerprint;
  /** ASCII date from which the certificate is valid */
  const char *valid_from;
  /** ASCII date until which the certificate is valid */
  const char *valid_until;
  /** DN of the certificate issuer */
  const char *issuer_dname;
  /** Base-64 encoded DER certificate representation */
  const char *ascii_cert;
} svn_auth_ssl_server_cert_info_t;

/**
 * Return a deep copy of @a info, allocated in @a pool.
 *
 * @since New in 1.3.
 */
svn_auth_ssl_server_cert_info_t *
svn_auth_ssl_server_cert_info_dup(const svn_auth_ssl_server_cert_info_t *info,
                                  apr_pool_t *pool);

/** @c SVN_AUTH_CRED_SSL_SERVER_TRUST credentials. */
typedef struct svn_auth_cred_ssl_server_trust_t
{
  /** Indicates if the credentials may be saved (to disk). For example, a
   * GUI prompt implementation with a checkbox to accept the certificate
   * permanently shall set @a may_save to TRUE if the checkbox is checked.
   */
  svn_boolean_t may_save;
  /** Bit mask of the accepted failures */
  apr_uint32_t accepted_failures;
} svn_auth_cred_ssl_server_trust_t;