## modules/aa/aa.c

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## DEFINITIONS

This source file includes following functions.

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

       1 /***************************************
       2   $Revision: 1.6 $
       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) 1999,2000,2001,2002                         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 "rip.h"
      33
      34 /*
      35 > +---------------+---------------------+------+-----+---------+-------+
      36 > | Field         | Type                | Null | Key | Default | Extra |
      37 > +---------------+---------------------+------+-----+---------+-------+
      38 > | prefix        | int(10) unsigned    |      | PRI | 0       |       |
      39 > | prefix_length | tinyint(3) unsigned |      | PRI | 0       |       |
      40 > | source        | varchar(32)         |      | PRI |         |       |
      41 > | ripupdate     | tinyint(3)          |      |     | 0       |       |
      42 > | netupdate     | tinyint(3)          |      |     | 0       |       |
      43 > | mirror        | tinyint(3)          |      |     | 0       |       |
      44 > | comment       | longblob            | YES  |     | NULL    |       |
      45 > +---------------+---------------------+------+-----+---------+-------+
      46 */
      47
      48 typedef struct {
      49   int ripupdate;
      50   int netupdate;
      51   int mirror;
      52 } aa_rights;
         /* [<][>][^][v][top][bottom][index][help] */
      53
      54 void aa_parserow(SQ_result_set_t *result, aa_rights *rights)
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      55 {
      56   SQ_row_t *row;
      57
      58   /* zero the rights - so if we don't get any results, we have a valid
      59    answer "no rights" */
      60
      61   rights->ripupdate = 0;
      62   rights->netupdate = 0;
      63   rights->mirror    = 0;
      64
      65   if ( (row = SQ_row_next(result)) != NULL ) {
      66     /* read in the order of query */
      67     if( sscanf(SQ_get_column_string_nocopy(result, row, 0),
      68                "%u", &rights->ripupdate ) < 1 ) { die; }
      69     if( sscanf(SQ_get_column_string_nocopy(result, row, 1),
      70                "%u", &rights->netupdate ) < 1 ) { die; }
      71     if( sscanf(SQ_get_column_string_nocopy(result, row, 2),
      72                "%u", &rights->mirror )    < 1 ) { die; }
      73   }
      74 }
      75
      76
      77
      78 void aa_compose_query(ip_addr_t *address, char *source, char *buf, unsigned len)
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      79 {
      80 snprintf(buf,len, "SELECT ripupdate, netupdate, mirror FROM aaa WHERE %u "
      81 " BETWEEN prefix AND (prefix+(1<<(32-prefix_length)))"
      82 " AND source = '%s' "
      83 " ORDER BY prefix_length DESC LIMIT 1" /* take the most specific entry */,
      84   IP_addr_b2v4_addr(address), source );
      85 }
      86
      87
      88
      89 /* finds and fills in the struct */
      90 void
      91 aa_find(ip_addr_t *address, char *source, aa_rights *rights)
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      92 {
      93  SQ_result_set_t *result;
      94  SQ_connection_t *con=NULL;
      95  char buf[1024];
      96
      97  /* get the query */
      98  aa_compose_query(address,source, buf, 1024);
      99
     100  /* open the database */
     101
     102  if( (con = AC_dbopen_admin()) == NULL ) {
     103    fprintf(stderr, "ERROR %d: %s\n", SQ_errno(con), SQ_error(con));
     104    die;
     105  }
     106
     107  /* select the most specific entry */
     108  if( SQ_execute_query(con, buf, &result) == -1 ) {
     109    fprintf(stderr, "ERROR %d: %s\n", SQ_errno(con), SQ_error(con));
     110    die;
     111  }
     112
     113  /* read in the rights from the resulting row */
     114  aa_parserow(result, rights);
     115
     116  /* release everything */
     117  SQ_free_result(result);
     118
     119  /* Close connection */
     120  SQ_close_connection(con);
     121 }
     122
     123
     124 int AA_can_networkupdate( ip_addr_t *address, char *source )
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     125 {
     126   aa_rights myrights;
     127   aa_find(address, source, &myrights);
     128   return (myrights.netupdate != 0);
     129 }
     130
     131 int AA_can_ripupdate( ip_addr_t *address, char *source )
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     132 {
     133   aa_rights myrights;
     134   aa_find(address, source, &myrights);
     135   return (myrights.ripupdate != 0);
     136 }
     137
     138 int AA_can_mirror( ip_addr_t *address, char *source )
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     139 {
     140   aa_rights myrights;
     141   aa_find(address, source, &myrights);
     142   return (myrights.mirror != 0);
     143 }

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