| 1 | /* SAMHAIN file system integrity testing */
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| 2 | /* Copyright (C) 1999 Rainer Wichmann */
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| 3 | /* */
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| 4 | /* This program is free software; you can redistribute it */
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| 5 | /* and/or modify */
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| 6 | /* it under the terms of the GNU General Public License as */
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| 7 | /* published by */
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| 8 | /* the Free Software Foundation; either version 2 of the License, or */
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| 9 | /* (at your option) any later version. */
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| 10 | /* */
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| 11 | /* This program is distributed in the hope that it will be useful, */
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| 12 | /* but WITHOUT ANY WARRANTY; without even the implied warranty of */
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| 13 | /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
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| 14 | /* GNU General Public License for more details. */
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| 15 | /* */
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| 16 | /* You should have received a copy of the GNU General Public License */
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| 17 | /* along with this program; if not, write to the Free Software */
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| 18 | /* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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| 19 |
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| 20 |
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| 21 | #ifndef SH_HASH_H
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| 22 | #define SH_HASH_H
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| 23 |
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| 24 | #include <limits.h>
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| 25 |
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| 26 | #include "samhain.h"
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| 27 | #include "sh_unix.h"
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| 28 | #include "sh_error.h"
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| 29 |
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| 30 | /* format a uint64
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| 31 | */
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| 32 | char * sh_hash_size_format(void);
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| 33 |
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| 34 | /* report on a missing file
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| 35 | */
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| 36 | int hashreport_missing( char *fullpath, int level);
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| 37 |
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| 38 | /* write database to stdout
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| 39 | */
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| 40 | int sh_hash_pushdata_stdout (const char * str);
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| 41 |
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| 42 | /* version string for database
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| 43 | */
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| 44 | int sh_hash_version_string(const char * str);
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| 45 |
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| 46 | /* Dont report on ctm/mtm change for directories
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| 47 | */
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| 48 | int sh_hash_loosedircheck(const char * str);
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| 49 |
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| 50 | /* List database content
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| 51 | */
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| 52 | int sh_hash_list_db (const char * db_file);
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| 53 |
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| 54 | /* List database content for a single file
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| 55 | */
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| 56 | int set_list_file (const char * c);
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| 57 |
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| 58 | /* List database content with full detail
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| 59 | */
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| 60 | int set_full_detail (const char * c);
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| 61 |
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| 62 | /* List database content with full detail, comma delimited
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| 63 | */
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| 64 | int set_list_delimited (const char * c);
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| 65 |
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| 66 | /* Read the database from disk.
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| 67 | */
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| 68 | void sh_hash_init (void);
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| 69 |
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| 70 | /* Check whether a file is present in the database.
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| 71 | */
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| 72 | int sh_hash_have_it (const char * newname);
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| 73 |
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| 74 | /* Get a file if it is present in the database.
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| 75 | * If fileHash != NULL also return checksum.
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| 76 | */
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| 77 | int sh_hash_get_it (const char * newname, file_type * tmpFile, char * fileHash);
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| 78 |
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| 79 | /* Delete the database from memory.
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| 80 | */
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| 81 | void sh_hash_hashdelete (void);
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| 82 |
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| 83 | /* Insert a file into the database.
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| 84 | */
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| 85 | void sh_hash_pushdata (file_type * buf, char * fileHash);
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| 86 |
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| 87 | /* reset sh_hash_pushdata to use 'update' in daemon mode
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| 88 | */
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| 89 | void sh_hash_pushdata_reset (void);
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| 90 |
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| 91 | /* Insert a file into the in-memory database.
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| 92 | */
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| 93 | void sh_hash_pushdata_memory (file_type * theFile, char * fileHash);
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| 94 |
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| 95 | /* Get file flags from in-memory database
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| 96 | */
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| 97 | int sh_hash_getflags (char * filename);
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| 98 |
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| 99 | /* Set file flags in in-memory database
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| 100 | */
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| 101 | int sh_hash_setflags (char * filename, int flags);
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| 102 |
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| 103 | /* Set a file flag in in-memory database
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| 104 | */
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| 105 | void sh_hash_addflag (char * filename, int flag);
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| 106 |
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| 107 | /* Compare a file with its status in the database.
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| 108 | */
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| 109 | int sh_hash_compdata (int class, file_type * theFile, char * fileHash,
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| 110 | char * policy_override, int severity_override);
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| 111 |
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| 112 | /* Search for files in the database that have been deleted from disk.
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| 113 | */
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| 114 | void sh_hash_unvisited (ShErrLevel level);
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| 115 |
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| 116 | /* Search for unvisited entries in the database, custom error handler.
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| 117 | */
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| 118 | void sh_hash_unvisited_custom (char prefix, void(*handler)(const char * key));
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| 119 |
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| 120 | /* Set a file's status to 'visited'. This is required for
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| 121 | * files that should be ignored, and may be present in the
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| 122 | * database, but not on disk.
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| 123 | */
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| 124 | int sh_hash_set_visited (char * newname);
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| 125 |
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| 126 | /* As above, but only set the 'visited' flag
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| 127 | */
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| 128 | int sh_hash_set_visited_true (char * newname);
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| 129 |
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| 130 | /* cause the record to be deleted without a 'missing' message
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| 131 | */
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| 132 | int sh_hash_set_missing (char * newname);
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| 133 |
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| 134 | /* Make a complete directory tree invisible
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| 135 | */
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| 136 | int hash_remove_tree (char * s);
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| 137 |
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| 138 | /* Make every entry visible
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| 139 | */
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| 140 | int hash_full_tree (void);
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| 141 |
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| 142 | /* Insert data.
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| 143 | * 'key' -> path
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| 144 | * 'str' -> binary with size 'size'
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| 145 | */
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| 146 | struct store2db {
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| 147 | UINT64 val0;
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| 148 | UINT64 val1;
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| 149 | UINT64 val2;
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| 150 | UINT64 val3;
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| 151 | char checksum[KEY_LEN+1];
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| 152 | unsigned char * str;
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| 153 | int size;
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| 154 | };
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| 155 |
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| 156 | void sh_hash_push2db (const char * key, struct store2db * save);
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| 157 |
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| 158 |
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| 159 | /* Retrieve data
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| 160 | */
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| 161 | char * sh_hash_db2pop (const char * key, struct store2db * get);
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| 162 |
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| 163 |
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| 164 | /* Write out database
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| 165 | */
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| 166 | int sh_hash_writeout(void);
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| 167 | #endif
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