nfs3_Pathconf.c

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/*
 * vim:expandtab:shiftwidth=8:tabstop=8:
 *
 * Copyright CEA/DAM/DIF  (2008)
 * contributeur : Philippe DENIEL   philippe.deniel@cea.fr
 *                Thomas LEIBOVICI  thomas.leibovici@cea.fr
 *
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * ---------------------------------------
 */

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

#ifdef _SOLARIS
#include "solaris_port.h"
#endif

#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <fcntl.h>
#include <sys/file.h>           /* for having FNDELAY */
#include "HashData.h"
#include "HashTable.h"
#include "log.h"
#include "nfs23.h"
#include "nfs4.h"
#include "mount.h"
#include "nfs_core.h"
#include "cache_inode.h"
#include "nfs_exports.h"
#include "nfs_creds.h"
#include "nfs_proto_functions.h"
#include "nfs_tools.h"
#include "nfs_proto_tools.h"

int nfs3_Pathconf(nfs_arg_t *parg,
                  exportlist_t *pexport,
                  fsal_op_context_t *pcontext,
                  nfs_worker_data_t *pworker,
                  struct svc_req *preq,
                  nfs_res_t *pres)
{
  cache_inode_status_t cache_status;
  cache_entry_t *pentry = NULL;
  cache_inode_fsal_data_t fsal_data;
  fsal_attrib_list_t attr;
  fsal_staticfsinfo_t * pstaticinfo = pcontext->export_context->fe_static_fs_info;
  int rc = NFS_REQ_OK;

  if(isDebug(COMPONENT_NFSPROTO))
    {
      char str[LEN_FH_STR];
      sprint_fhandle3(str, &(parg->arg_pathconf3.object));
      LogDebug(COMPONENT_NFSPROTO,
               "REQUEST PROCESSING: Calling nfs3_Pathconf handle: %s", str);
    }

  /* to avoid setting it on each error case */
  pres->res_pathconf3.PATHCONF3res_u.resfail.obj_attributes.attributes_follow = FALSE;

  /* Convert file handle into a fsal_handle */
  if(nfs3_FhandleToFSAL(&(parg->arg_pathconf3.object), &fsal_data.fh_desc, pcontext) == 0)
    {
      rc = NFS_REQ_DROP;
      goto out;
    }

  /* Get the entry in the cache_inode */
  if((pentry = cache_inode_get(&fsal_data,
                               &attr,
                               pcontext,
                               NULL,
                               &cache_status)) == NULL)
    {
      /* Stale NFS FH ? */
      pres->res_pathconf3.status = NFS3ERR_STALE;
      rc = NFS_REQ_OK;
      goto out;
    }

  /* Build post op file attributes */
  nfs_SetPostOpAttr(pexport,
                    &attr,
                    &(pres->res_pathconf3
                      .PATHCONF3res_u.resok.obj_attributes));

  pres->res_pathconf3.PATHCONF3res_u.resok.linkmax = pstaticinfo->maxlink;
  pres->res_pathconf3.PATHCONF3res_u.resok.name_max = pstaticinfo->maxnamelen;
  pres->res_pathconf3.PATHCONF3res_u.resok.no_trunc = pstaticinfo->no_trunc;
  pres->res_pathconf3.PATHCONF3res_u.resok.chown_restricted = pstaticinfo->chown_restricted;
  pres->res_pathconf3.PATHCONF3res_u.resok.case_insensitive = pstaticinfo->case_insensitive;
  pres->res_pathconf3.PATHCONF3res_u.resok.case_preserving = pstaticinfo->case_preserving;

 out:

  if (pentry)
    {
      cache_inode_put(pentry);
    }

  return rc;
}                               /* nfs3_Pathconf */

void nfs3_Pathconf_Free(nfs_res_t * pres)
{
  /* Nothing to do */
  return;
}                               /* nfs3_Pathconf_Free */