## modules/aa/aa.c

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## FUNCTIONS

This source file includes following functions.

1. aa_parserow
2. aa_compose_query
3. aa_find
4. AA_can_networkupdate
5. AA_can_ripupdate
6. AA_can_mirror

       1 /***************************************
       2   $Revision: 1.1 $
       3
       4   access authorisation (aa). aa.c - functions to check access rights
       5   for less frequent clients (ripupdate, networkupdate, mirror).
       6
       7   Status: NOT REVUED, NOT TESTED,
       8
       9   Design and implementation by: Marek Bukowy
      10
      11   ******************/ /******************
      12   Copyright (c) 1999                              RIPE NCC
      13
      14   All Rights Reserved
      15
      16   Permission to use, copy, modify, and distribute this software and its
      17   documentation for any purpose and without fee is hereby granted,
      18   provided that the above copyright notice appear in all copies and that
      19   both that copyright notice and this permission notice appear in
      20   supporting documentation, and that the name of the author not be
      21   used in advertising or publicity pertaining to distribution of the
      22   software without specific, written prior permission.
      23
      24   THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
      25   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
      26   AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
      27   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
      28   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
      29   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
      30   ***************************************/
      31
      32 #include "iproutines.h"
      33 #include "mysql_driver.h"
      34 #include "constants.h"
      35
      36 /*
      37 > +---------------+---------------------+------+-----+---------+-------+
      38 > | Field         | Type                | Null | Key | Default | Extra |
      39 > +---------------+---------------------+------+-----+---------+-------+
      40 > | prefix        | int(10) unsigned    |      | PRI | 0       |       |
      41 > | prefix_length | tinyint(3) unsigned |      | PRI | 0       |       |
      42 > | source        | varchar(32)         |      | PRI |         |       |
      43 > | ripupdate     | tinyint(3)          |      |     | 0       |       |
      44 > | netupdate     | tinyint(3)          |      |     | 0       |       |
      45 > | mirror        | tinyint(3)          |      |     | 0       |       |
      46 > | comment       | longblob            | YES  |     | NULL    |       |
      47 > +---------------+---------------------+------+-----+---------+-------+
      48 */
      49
      50 typedef struct {
      51   int ripupdate;
      52   int netupdate;
      53   int mirror;
      54 } aa_rights;
      55
      56 void aa_parserow(SQ_result_set_t *result, aa_rights *rights)
         /* [<][>][^][v][top][bottom][index][help] */
      57 {
      58   SQ_row_t *row;
      59
      60   /* zero the rights - so if we don't get any results, we have a valid
      61    answer "no rights" */
      62
      63   rights->ripupdate = 0;
      64   rights->netupdate = 0;
      65   rights->mirror    = 0;
      66
      67   if ( (row = SQ_row_next(result)) != NULL ) {
      68     /* read in the order of query */
      69     if( sscanf(SQ_get_column_string_nocopy(result, row, 0),
      70                "%u", &rights->ripupdate ) < 1 ) { die; }
      71     if( sscanf(SQ_get_column_string_nocopy(result, row, 1),
      72                "%u", &rights->netupdate ) < 1 ) { die; }
      73     if( sscanf(SQ_get_column_string_nocopy(result, row, 2),
      74                "%u", &rights->mirror )    < 1 ) { die; }
      75   }
      76 }
      77
      78
      79
      80 void aa_compose_query(ip_addr_t *address, char *source, char *buf, int len)
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      81 {
      82 snprintf(buf,len, "SELECT ripupdate, netupdate, mirror FROM aaa WHERE %lu "
      83 " BETWEEN prefix AND (prefix+(1<<(32-prefix_length)))"
      84 " AND source = '%s' "
      85 " ORDER BY prefix_length DESC LIMIT 1" /* take the most specific entry */,
      86   IP_addr_b2v4_addr(address), source );
      87 }
      88
      89
      90
      91 /* finds and fills in the struct */
      92 void
      93 aa_find(ip_addr_t *address, char *source, aa_rights *rights)
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      94 {
      95  SQ_result_set_t *result;
      96  SQ_connection_t *con=NULL;
      97  char buf[1024];
      98
      99  /* get the query */
     100  aa_compose_query(address,source, buf, 1024);
     101
     102  /* open the database */
     103
     104  if( (con = SQ_get_connection(CO_get_host(), CO_get_database_port(),
     105                               "RIPADMIN", CO_get_user(), CO_get_password() )
     106       ) == NULL )
     107    {
     108      fprintf(stderr, "ERROR %d: %s\n", SQ_errno(con), SQ_error(con));
     109      die;
     110    }
     111
     112  /* select the most specific entry */
     113  if( SQ_execute_query(con, buf, &result) == -1 ) {
     114    fprintf(stderr, "ERROR %d: %s\n", SQ_errno(con), SQ_error(con));
     115    die;
     116  }
     117
     118  /* read in the rights from the resulting row */
     119  aa_parserow(result, rights);
     120
     121  /* release everything */
     122  SQ_free_result(result);
     123
     124  /* Close connection */
     125  SQ_close_connection(con);
     126 }
     127
     128
     129 int AA_can_networkupdate( ip_addr_t *address, char *source )
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     130 {
     131   aa_rights myrights;
     132   aa_find(address, source, &myrights);
     133   return (myrights.netupdate != 0);
     134 }
     135
     136 int AA_can_ripupdate( ip_addr_t *address, char *source )
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     137 {
     138   aa_rights myrights;
     139   aa_find(address, source, &myrights);
     140   return (myrights.ripupdate != 0);
     141 }
     142
     143 int AA_can_mirror( ip_addr_t *address, char *source )
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     144 {
     145   aa_rights myrights;
     146   aa_find(address, source, &myrights);
     147   return (myrights.mirror != 0);
     148 }

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