fsal_access.c

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/*
 * vim:expandtab:shiftwidth=8:tabstop=8:
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "fsal.h"
#include "fsal_internal.h"
#include "fsal_convert.h"

#include <hpss_errno.h>

fsal_status_t HPSSFSAL_access(hpssfsal_handle_t * object_handle,        /* IN */
                              hpssfsal_op_context_t * p_context,        /* IN */
                              fsal_accessflags_t access_type,   /* IN */
                              fsal_attrib_list_t * object_attributes    /* [ IN/OUT ] */
    )
{

  int hpss_test_mode = 0;
  int rc;
  fsal_status_t st;

  /* sanity checks.
   * note : object_attributes is optionnal in FSAL_getattrs.
   */
  if(!object_handle || !p_context)
    Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_access);

  /* converts fsal access type to hpss access type */

  hpss_test_mode = fsal2hpss_testperm(access_type);

  /* call to HPSS access */

  TakeTokenFSCall();

  rc = hpss_AccessHandle(&(object_handle->data.ns_handle),   /* IN - parent object handle */
                         NULL,  /* IN - path of file to check access rights */
                         hpss_test_mode,        /* IN - Type of access to be checked */
                         &p_context->credential.hpss_usercred   /* IN - user credentials */
#if HPSS_MAJOR_VERSION < 7
                         , NULL /* OUT - authorization ticket */
#endif
      );

  ReleaseTokenFSCall();

  /* convert returned code */
  /* The HPSS_ENOENT error actually means that handle is STALE */
  if(rc == HPSS_ENOENT)
    Return(ERR_FSAL_STALE, -rc, INDEX_FSAL_access);
  else if(rc)
    Return(hpss2fsal_error(rc), -rc, INDEX_FSAL_access);

  /* get attributes if object_attributes is not null.
   * If an error occures during getattr operation,
   * it is returned, even though the access operation succeeded.
   */
  if(object_attributes)
    {
      fsal_status_t status;

      status = FSAL_getattrs(object_handle, p_context, object_attributes);

      /* on error, we set a special bit in the mask. */
      if(FSAL_IS_ERROR(status))
        {
          FSAL_CLEAR_MASK(object_attributes->asked_attributes);
          FSAL_SET_MASK(object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
        }

    }

  Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_access);

}