source/include/msdfs.h

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 3.0
   4    MSDfs services for Samba
   5    Copyright (C) Shirish Kalele 2000
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21 */
  22
  23 #ifndef _MSDFS_H
  24 #define _MSDFS_H
  25
  26 #define REFERRAL_TTL 600
  27
  28 /* Flags used in trans2 Get Referral reply */
  29 #define DFSREF_REFERRAL_SERVER 0x1
  30 #define DFSREF_STORAGE_SERVER  0x2
  31
  32 /* Referral sizes */
  33 #define VERSION2_REFERRAL_SIZE 0x16
  34 #define VERSION3_REFERRAL_SIZE 0x22
  35 #define REFERRAL_HEADER_SIZE 0x08
  36
  37 /* Maximum number of referrals for each Dfs volume */
  38 #define MAX_REFERRAL_COUNT   256
  39
  40 typedef struct _client_referral {
  41         uint32 proximity;
  42         uint32 ttl;
  43         pstring dfspath;
  44 } CLIENT_DFS_REFERRAL;
  45
  46 struct referral
  47 {
  48         pstring alternate_path; /* contains the path referred */
  49         uint32 proximity;
  50         uint32 ttl; /* how long should client cache referral */
  51 };
  52
  53 struct junction_map
  54 {
  55   pstring service_name;
  56   pstring volume_name;
  57   int referral_count;
  58   struct referral* referral_list;
  59 };
  60
  61 struct dfs_path
  62 {
  63         pstring hostname;
  64         pstring servicename;
  65         pstring reqpath;
  66 };
  67
  68 #define RESOLVE_DFSPATH(name, conn, inbuf, outbuf)              \
  69 { if ((SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES) &&          \
  70       lp_host_msdfs() && lp_msdfs_root(SNUM(conn)) &&           \
  71       dfs_redirect(name,conn,False))                            \
  72              return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED,      \
  73                                ERRSRV, ERRbadpath);; }
  74
  75 #define init_dfsroot(conn, inbuf, outbuf)                       \
  76 { if (lp_msdfs_root(SNUM(conn)) && lp_host_msdfs()) {           \
  77         DEBUG(2,("Serving %s as a Dfs root\n",                  \
  78                  lp_servicename(SNUM(conn)) ));                 \
  79         SSVAL(outbuf, smb_vwv2, SMB_SHARE_IN_DFS                \
  80               | SVAL(outbuf, smb_vwv2));                        \
  81 } }
  82
  83 #endif /* _MSDFS_H */