modules/aa/aa.c
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FUNCTIONS
This source file includes following functions.
- aa_parserow
- aa_compose_query
- aa_find
- AA_can_networkupdate
- AA_can_ripupdate
- 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)
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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 }