s3: Make map_open_params_to_ntcreate() available in lib/

[ira/wip.git] / source3 / lib / util.c

diff --git a/source3/lib/util.c b/source3/lib/util.c
index b320931146b3d0c21eb791e1bf0d7adbf61107d6..689d41ed17c3bd907f998b5eb3a4028cbc788eeb 100644 (file)
--- a/source3/lib/util.c
+++ b/source3/lib/util.c
@@ -29,6 +29,7 @@
 #include "../lib/util/util_pw.h"
 #include "messages.h"
 #include <ccan/hash/hash.h>
+#include "libcli/security/security.h"
 
 /* Max allowable allococation - 256mb - 0x10000000 */
 #define MAX_ALLOC_SIZE (1024*1024*256)
@@ -2255,3 +2256,150 @@ bool is_executable(const char *fname)
        }
        return False;
 }
+
+/****************************************************************************
+ Open a file with a share mode - old openX method - map into NTCreate.
+****************************************************************************/
+
+bool map_open_params_to_ntcreate(const char *smb_base_fname,
+                                int deny_mode, int open_func,
+                                uint32 *paccess_mask,
+                                uint32 *pshare_mode,
+                                uint32 *pcreate_disposition,
+                                uint32 *pcreate_options,
+                                uint32_t *pprivate_flags)
+{
+       uint32 access_mask;
+       uint32 share_mode;
+       uint32 create_disposition;
+       uint32 create_options = FILE_NON_DIRECTORY_FILE;
+       uint32_t private_flags = 0;
+
+       DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
+                 "open_func = 0x%x\n",
+                 smb_base_fname, (unsigned int)deny_mode,
+                 (unsigned int)open_func ));
+
+       /* Create the NT compatible access_mask. */
+       switch (GET_OPENX_MODE(deny_mode)) {
+               case DOS_OPEN_EXEC: /* Implies read-only - used to be FILE_READ_DATA */
+               case DOS_OPEN_RDONLY:
+                       access_mask = FILE_GENERIC_READ;
+                       break;
+               case DOS_OPEN_WRONLY:
+                       access_mask = FILE_GENERIC_WRITE;
+                       break;
+               case DOS_OPEN_RDWR:
+               case DOS_OPEN_FCB:
+                       access_mask = FILE_GENERIC_READ|FILE_GENERIC_WRITE;
+                       break;
+               default:
+                       DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n",
+                                 (unsigned int)GET_OPENX_MODE(deny_mode)));
+                       return False;
+       }
+
+       /* Create the NT compatible create_disposition. */
+       switch (open_func) {
+               case OPENX_FILE_EXISTS_FAIL|OPENX_FILE_CREATE_IF_NOT_EXIST:
+                       create_disposition = FILE_CREATE;
+                       break;
+
+               case OPENX_FILE_EXISTS_OPEN:
+                       create_disposition = FILE_OPEN;
+                       break;
+
+               case OPENX_FILE_EXISTS_OPEN|OPENX_FILE_CREATE_IF_NOT_EXIST:
+                       create_disposition = FILE_OPEN_IF;
+                       break;
+
+               case OPENX_FILE_EXISTS_TRUNCATE:
+                       create_disposition = FILE_OVERWRITE;
+                       break;
+
+               case OPENX_FILE_EXISTS_TRUNCATE|OPENX_FILE_CREATE_IF_NOT_EXIST:
+                       create_disposition = FILE_OVERWRITE_IF;
+                       break;
+
+               default:
+                       /* From samba4 - to be confirmed. */
+                       if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_EXEC) {
+                               create_disposition = FILE_CREATE;
+                               break;
+                       }
+                       DEBUG(10,("map_open_params_to_ntcreate: bad "
+                                 "open_func 0x%x\n", (unsigned int)open_func));
+                       return False;
+       }
+
+       /* Create the NT compatible share modes. */
+       switch (GET_DENY_MODE(deny_mode)) {
+               case DENY_ALL:
+                       share_mode = FILE_SHARE_NONE;
+                       break;
+
+               case DENY_WRITE:
+                       share_mode = FILE_SHARE_READ;
+                       break;
+
+               case DENY_READ:
+                       share_mode = FILE_SHARE_WRITE;
+                       break;
+
+               case DENY_NONE:
+                       share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
+                       break;
+
+               case DENY_DOS:
+                       private_flags |= NTCREATEX_OPTIONS_PRIVATE_DENY_DOS;
+                       if (is_executable(smb_base_fname)) {
+                               share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
+                       } else {
+                               if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_RDONLY) {
+                                       share_mode = FILE_SHARE_READ;
+                               } else {
+                                       share_mode = FILE_SHARE_NONE;
+                               }
+                       }
+                       break;
+
+               case DENY_FCB:
+                       private_flags |= NTCREATEX_OPTIONS_PRIVATE_DENY_FCB;
+                       share_mode = FILE_SHARE_NONE;
+                       break;
+
+               default:
+                       DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n",
+                               (unsigned int)GET_DENY_MODE(deny_mode) ));
+                       return False;
+       }
+
+       DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, "
+                 "share_mode = 0x%x, create_disposition = 0x%x, "
+                 "create_options = 0x%x private_flags = 0x%x\n",
+                 smb_base_fname,
+                 (unsigned int)access_mask,
+                 (unsigned int)share_mode,
+                 (unsigned int)create_disposition,
+                 (unsigned int)create_options,
+                 (unsigned int)private_flags));
+
+       if (paccess_mask) {
+               *paccess_mask = access_mask;
+       }
+       if (pshare_mode) {
+               *pshare_mode = share_mode;
+       }
+       if (pcreate_disposition) {
+               *pcreate_disposition = create_disposition;
+       }
+       if (pcreate_options) {
+               *pcreate_options = create_options;
+       }
+       if (pprivate_flags) {
+               *pprivate_flags = private_flags;
+       }
+
+       return True;
+
+}