gnunet-android

GNUnet for Android
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block_fs.h (2469B)

      1 /*
      2      This file is part of GNUnet.
      3      Copyright (C) 2010 GNUnet e.V.
      4 
      5      GNUnet is free software: you can redistribute it and/or modify it
      6      under the terms of the GNU Affero General Public License as published
      7      by the Free Software Foundation, either version 3 of the License,
      8      or (at your option) any later version.
      9 
     10      GNUnet is distributed in the hope that it will be useful, but
     11      WITHOUT ANY WARRANTY; without even the implied warranty of
     12      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13      Affero General Public License for more details.
     14 
     15      You should have received a copy of the GNU Affero General Public License
     16      along with this program.  If not, see <http://www.gnu.org/licenses/>.
     17 
     18      SPDX-License-Identifier: AGPL3.0-or-later
     19  */
     20 
     21 /**
     22  * @addtogroup fs_l2
     23  * @{
     24  *
     25  * @author Christian Grothoff
     26  *
     27  * @file
     28  * FS block formats (shared between FS and Block)
     29  *
     30  * @defgroup block-fs  FS block formats
     31  * Shared between the [FS service](@ref fs) and the [Block library](@ref block).
     32  * @{
     33  */
     34 #ifndef BLOCK_FS_H
     35 #define BLOCK_FS_H
     36 
     37 
     38 #include "gnunet_util_lib.h"
     39 #include "gnunet_fs_service.h"
     40 
     41 
     42 /**
     43  * Maximum legal size for a ublock.
     44  */
     45 #define MAX_UBLOCK_SIZE (60 * 1024)
     46 
     47 
     48 GNUNET_NETWORK_STRUCT_BEGIN
     49 
     50 /**
     51  * @brief universal block for keyword and namespace search results
     52  */
     53 struct UBlock
     54 {
     55   /**
     56    * Signature using pseudonym and search keyword / identifier.
     57    */
     58   struct GNUNET_CRYPTO_EcdsaSignature signature;
     59 
     60   /**
     61    * What is being signed and why?
     62    */
     63   struct GNUNET_CRYPTO_SignaturePurpose purpose;
     64 
     65   /**
     66    * Public key used to sign this block.
     67    */
     68   struct GNUNET_CRYPTO_EcdsaPublicKey verification_key;
     69 
     70   /* rest of the data is encrypted */
     71 
     72   /* 0-terminated update-identifier here (ignored for keyword results) */
     73 
     74   /* 0-terminated URI here */
     75 
     76   /* variable-size Meta-Data follows here */
     77 };
     78 
     79 
     80 /**
     81  * @brief index block (indexing a DBlock that
     82  *        can be obtained directly from reading
     83  *        the plaintext file)
     84  */
     85 struct OnDemandBlock
     86 {
     87   /**
     88    * Hash code of the entire content of the
     89    * file that was indexed (used to uniquely
     90    * identify the plaintext file).
     91    */
     92   struct GNUNET_HashCode file_id;
     93 
     94   /**
     95    * At which offset should we be able to find
     96    * this on-demand encoded block? (in NBO)
     97    */
     98   uint64_t offset GNUNET_PACKED;
     99 };
    100 GNUNET_NETWORK_STRUCT_END
    101 
    102 #endif
    103 
    104 /** @} */  /* end of group */
    105 
    106 /** @} */  /* end of group addition to fs_l2 */