libcli/smb/reparse.h

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef __LIBCLI_SMB_REPARSE_H__
  19 #define __LIBCLI_SMB_REPARSE_H__
  20
  21 #include <talloc.h>
  22 #include "replace.h"
  23 #include "libcli/util/ntstatus.h"
  24
  25 struct symlink_reparse_struct {
  26         uint16_t unparsed_path_length; /* reserved for the reparse point */
  27         char *substitute_name;
  28         char *print_name;
  29         uint32_t flags;
  30 };
  31
  32 struct nfs_reparse_data_buffer {
  33         uint64_t type;
  34
  35         union {
  36                 char *lnk_target; /* NFS_SPECFILE_LNK */
  37                 struct {
  38                         uint32_t major;
  39                         uint32_t minor;
  40                 } dev; /* NFS_SPECFILE_[CHR|BLK] */
  41
  42                 /* NFS_SPECFILE_[FIFO|SOCK] have no data */
  43         } data;
  44 };
  45
  46 struct reparse_data_buffer {
  47         uint32_t tag;
  48
  49         union {
  50                 /* IO_REPARSE_TAG_NFS */
  51                 struct nfs_reparse_data_buffer nfs;
  52
  53                 /* IO_REPARSE_TAG_SYMLINK */
  54                 struct symlink_reparse_struct lnk;
  55
  56                 /* Unknown reparse tag */
  57                 struct {
  58                         uint16_t length;
  59                         uint16_t reserved;
  60                         uint8_t *data;
  61                 } raw;
  62
  63         } parsed;
  64 };
  65
  66 NTSTATUS reparse_buffer_check(const uint8_t *in_data,
  67                               size_t in_len,
  68                               uint32_t *reparse_tag,
  69                               const uint8_t **_reparse_data,
  70                               size_t *_reparse_data_length);
  71 NTSTATUS reparse_data_buffer_parse(TALLOC_CTX *mem_ctx,
  72                                    struct reparse_data_buffer *dst,
  73                                    const uint8_t *buf,
  74                                    size_t buflen);
  75 char *reparse_data_buffer_str(TALLOC_CTX *mem_ctx,
  76                               const struct reparse_data_buffer *dst);
  77
  78 ssize_t reparse_data_buffer_marshall(const struct reparse_data_buffer *src,
  79                                      uint8_t *buf,
  80                                      size_t buflen);
  81
  82 int symlink_target_path(TALLOC_CTX *ctx,
  83                         const char *_name_in,
  84                         size_t num_unparsed,
  85                         const char *substitute,
  86                         bool relative,
  87                         char separator,
  88                         char **_target);
  89
  90 #endif