View of /netsukuku/src/andns.h

    1            /**************************************
    2           *     AUTHOR: Federico Tomassini        *
    3          *     Copyright (C) Federico Tomassini    *
    4         *     Contact effetom@gmail.com           *
    5        ***********************************************
    6        *******          BEGIN 3/2006          ********
    7 *************************************************************************
    8 *                                                     *
    9 *  This program is free software; you can redistribute it and/or modify *
   10 *  it under the terms of the GNU General Public License as published by *
   11 *  the Free Software Foundation; either version 2 of the License, or  *
   12 *  (at your option) any later version.          *
   13 *                 *
   14 *  This program is distributed in the hope that it will be useful,  *
   15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of *
   16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  *
   17 *  GNU General Public License for more details.       *
   18 *                 *
   19 ************************************************************************/
   20 #ifndef ANDNS_H
   21 #define ANDNS_H
   22 
   23 #include <stdio.h>
   24 #include <sys/socket.h>
   25 #include <netdb.h>
   26 #include "dnslib.h"
   27 #include "andns/andns_lib.h"
   28 #include "inet.h"
   29 
   30 #define ANDNS_TIMEOUT   15
   31 
   32 #define MAXNSSERVERS    3
   33 #define DNS_REPLY_TIMEOUT   10 /* seconds */
   34 
   35 #define DNS_PORT        53
   36 #define DNS_PORT_STR    "53"
   37 
   38 /* PREFIX TO QUERY THE INET REALM */
   39 #define INET_REALM_PREFIX       ".INT"
   40 #define NTK_REALM_PREFIX        ".NTK"
   41 #define PTR_INET_REALM_PREFIX   "INT."
   42 #define PTR_NTK_REALM_PREFIX    "NTK."
   43 #define REALM_PREFIX_LEN        4
   44 
   45 #define DNS_PROTO   0
   46 #define ANDNS_PROTO   1
   47 
   48 #define NK_DNS      0
   49 #define NK_NTK      1
   50 #define NK_INET     2
   51 #define GET_NK_BIT(msg)   (*((msg+3))>>4)&0x03
   52 
   53 #define RCODE_NOERR       0
   54 #define RCODE_EINTRPRT    1
   55 #define RCODE_ESRVFAIL    2
   56 #define RCODE_ENSDMN    3
   57 #define RCODE_ENIMPL    4
   58 #define RCODE_ERFSD       5
   59 
   60 
   61 
   62   /* FUNCTIONS */
   63 
   64 int store_ns(char *ns);
   65 int collect_resolv_conf(char *resolve_conf);
   66 void reset_andns_ns(void);
   67 int andns_init(int restricted, char *resolv_conf,int family);
   68 void andns_close(void);
   69 int ns_general_send(char *msg,int msglen,char *answer,int anslen);
   70 void dpktacpy(dns_pkt *dst,dns_pkt *src,const char *prefix);
   71 dns_pkt* dpktcpy(dns_pkt *src,const char *prefix);
   72 char* rm_realm_prefix(char *from,char *dst,int type);
   73 dns_pkt* dpktcpy_rm_pref(dns_pkt *src);
   74 int andns_gethostbyname(char *hname, inet_prefix *ip);
   75 int andns_realm(dns_pkt_qst *dpq,int *prefixed);
   76 int is_prefixed(dns_pkt *dp);
   77 int dns_forward(dns_pkt *dp,char *msg,int msglen,char* answer);
   78 int inet_rslv(dns_pkt *dp,char *msg,int msglen,char *answer);
   79 int nk_rslv(andns_pkt *ap,char *msg,int msglen,char *answer);
   80 int qtype_a_to_d(andns_pkt *ap);
   81 int apqsttodpqst(andns_pkt *ap,dns_pkt **dpsrc);
   82 int dpanswtoapansw(dns_pkt *dp,andns_pkt *ap);
   83 int nk_forward(andns_pkt *ap,char *msg,int msglen,char *answer);
   84 char *andns_rslv(char *msg, int msglen,char *answer, int *answ_len);
   85 
   86 #endif /* ANDNS_H */