src/ldapbackend.hh

   1 /*
   2  *  PowerDNS LDAP Backend
   3  *  Copyright (C) 2003-2007 Norbert Sendetzky <norbert@linuxnetworks.de>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License version 2
   7  *  as published by the Free Software Foundation.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, write to the Free Software
  16  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18
  19
  20
  21 #include <algorithm>
  22 #include <sstream>
  23 #include <utility>
  24 #include <string>
  25 #include <cstdlib>
  26 #include <cctype>
  27 #include <inttypes.h>
  28 #include <pdns/dns.hh>
  29 #include <pdns/utility.hh>
  30 #include <pdns/dnspacket.hh>
  31 #include <pdns/dnsbackend.hh>
  32 #include <pdns/ueberbackend.hh>
  33 #include <pdns/ahuexception.hh>
  34 #include <pdns/arguments.hh>
  35 #include <pdns/logger.hh>
  36 #include "powerldap.hh"
  37 #include "utils.hh"
  38
  39 #ifdef HAVE_CONFIG_H
  40 #include <config.h>
  41 #endif
  42
  43
  44 #ifndef LDAPBACKEND_HH
  45 #define LDAPBACKEND_HH
  46
  47 using std::string;
  48 using std::vector;
  49
  50 class LdapAuthenticator;
  51
  52 /*
  53  *  Known DNS RR types
  54  *  Types which aren't active are currently not supported by PDNS
  55  */
  56
  57 static const char* ldap_attrany[] = {
  58   "associatedDomain",
  59   "dNSTTL",
  60   "aRecord",
  61   "nSRecord",
  62   "cNAMERecord",
  63   "sOARecord",
  64   "pTRRecord",
  65   "hInfoRecord",
  66   "mXRecord",
  67   "tXTRecord",
  68   "rPRecord",
  69   "aFSDBRecord",
  70 //  "SigRecord",
  71   "KeyRecord",
  72 //  "gPosRecord",
  73   "aAAARecord",
  74   "lOCRecord",
  75   "sRVRecord",
  76   "nAPTRRecord",
  77   "kXRecord",
  78   "certRecord",
  79 //  "a6Record",
  80 //  "dNameRecord",
  81 //  "aPLRecord",
  82   "dSRecord",
  83   "sSHFPRecord",
  84   "iPSecKeyRecord",
  85   "rRSIGRecord",
  86   "nSECRecord",
  87   "dNSKeyRecord",
  88   "dHCIDRecord",
  89   "sPFRecord",
  90   "modifyTimestamp",
  91   NULL
  92 };
  93
  94
  95
  96 class LdapBackend : public DNSBackend
  97 {
  98     bool m_getdn;
  99     bool m_qlog;
 100     int m_msgid;
 101     uint32_t m_ttl;
 102     uint32_t m_default_ttl;
 103     unsigned int m_axfrqlen;
 104     time_t m_last_modified;
 105     string m_myname;
 106     string m_qname;
 107     PowerLDAP* m_pldap;
 108     LdapAuthenticator *m_authenticator;
 109     PowerLDAP::sentry_t m_result;
 110     PowerLDAP::sentry_t::iterator m_attribute;
 111     vector<string>::iterator m_value, m_adomain;
 112     vector<string> m_adomains;
 113     int m_reconnect_attempts;
 114
 115     bool (LdapBackend::*m_list_fcnt)( const string&, int );
 116     void (LdapBackend::*m_lookup_fcnt)( const QType&, const string&, DNSPacket*, int );
 117     bool (LdapBackend::*m_prepare_fcnt)();
 118
 119     bool list_simple( const string& target, int domain_id );
 120     bool list_strict( const string& target, int domain_id );
 121
 122     void lookup_simple( const QType& qtype, const string& qdomain, DNSPacket* p, int zoneid );
 123     void lookup_strict( const QType& qtype, const string& qdomain, DNSPacket* p, int zoneid );
 124     void lookup_tree( const QType& qtype, const string& qdomain, DNSPacket* p, int zoneid );
 125
 126     bool prepare();
 127     bool prepare_simple();
 128     bool prepare_strict();
 129
 130     bool getDomainInfo( const string& domain, DomainInfo& di );
 131
 132     bool reconnect();
 133
 134   public:
 135
 136     LdapBackend( const string &suffix="" );
 137     ~LdapBackend();
 138
 139     // Native backend
 140     bool list( const string& target, int domain_id );
 141     void lookup( const QType& qtype, const string& qdomain, DNSPacket* p = 0, int zoneid = -1 );
 142     bool get( DNSResourceRecord& rr );
 143
 144     // Master backend
 145     void getUpdatedMasters( vector<DomainInfo>* domains );
 146     void setNotified( uint32_t id, uint32_t serial );
 147 };
 148
 149 #endif /* LDAPBACKEND_HH */