## modules/rp/rp_convert.c

/* [<][>][^][v][top][bottom][index][help] */

## FUNCTIONS

This source file includes following functions.

1. RP_attr2fam
2. RP_attr2spc
3. RP_asc2uni
4. RP_asc2pack
5. rp_make_short
6. RP_pack_set_orig
7. RP_pack_set_type
8. RP_pack_set_pref4
9. RP_pack_set_revd
10. RP_pack_set_pref6
11. RP_pack_set_rang

       1 /***************************************
       2   $Revision: 1.5 $
       3
       4   Radix payload (rp) - user level functions for storing data in radix trees
       5
       6   rp_convert = conversion helpers for RX_asc_node and UD module.
       7
       8   Status: NOT REVIEWED, TESTED
       9
      10   Design and implementation by: Marek Bukowy
      11
      12   ******************/ /******************
      13   Copyright (c) 1999                              RIPE NCC
      14
      15   All Rights Reserved
      16
      17   Permission to use, copy, modify, and distribute this software and its
      18   documentation for any purpose and without fee is hereby granted,
      19   provided that the above copyright notice appear in all copies and that
      20   both that copyright notice and this permission notice appear in
      21   supporting documentation, and that the name of the author not be
      22   used in advertising or publicity pertaining to distribution of the
      23   software without specific, written prior permission.
      24
      25   THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
      26   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
      27   AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
      28   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
      29   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
      30   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
      31   ***************************************/
      32
      33 #include <rp.h>
      34 #include <iproutines.h>
      35 #include <rxroutines.h>
      36
      37 rx_fam_t RP_attr2fam( rp_attr_t type )
         /* [<][>][^][v][top][bottom][index][help] */
      38 {
      39   switch( type ) {
      40   case  A_RT:  return  RX_FAM_RT;
      41   case  A_IN:  return  RX_FAM_IN;
      42   case  A_DN:  return  RX_FAM_RT;
      43   case  A_I6:  return  RX_FAM_RT;
      44   default:
      45     die;
      46     return -1; /* will never execute */
      47   }
      48 }
      49
      50 /*
      51    returns 1 if the given space may appear for a given attribute
      52 */
      53 int RP_attr2spc(rp_attr_t type, ip_space_t space)
         /* [<][>][^][v][top][bottom][index][help] */
      54 {
      55   if ( space == IP_V4 ) {
      56     switch( type ) {
      57     case  A_DN:
      58     case  A_RT:
      59     case  A_IN:
      60       return 1;
      61     default:
      62       /* FALLTHROUGH */ ;
      63     }
      64   }
      65   else if( space == IP_V6 ) {
      66     switch( type ) {
      67     case  A_DN:
      68     case  A_I6:
      69       return 1;
      70     default:
      71       /* FALLTHROUGH */ ;
      72     }
      73   }
      74   else {
      75     die; /* unknown space */
      76   }
      77
      78   return 0;
      79 }
      80
      81
      82 er_ret_t
      83 RP_asc2uni(char       *astr,       /*+ string prefix/range/IP/inaddr +*/
         /* [<][>][^][v][top][bottom][index][help] */
      84            rp_attr_t  attr,
      85            rp_uni_t   *uni)        /* destination pointer */
      86 {
      87   er_ret_t   conv;
      88   rx_fam_t   fam_id = RP_attr2fam( attr );
      89   switch( attr ) {
      90   case A_IN:
      91     conv = IP_rang_e2b(&(uni->u.in), astr);
      92     break;
      93   case A_RT:
      94   case A_I6:
      95     conv = IP_pref_e2b(&(uni->u.rt), astr);
      96     break;
      97   case A_DN:
      98     conv = IP_revd_e2b(&(uni->u.rt), astr);
      99     break;
     100   default:
     101     /*    die; / * shouldn't have got here */
     102     conv = IP_INVARG;
     103   }
     104
     105   if( conv == IP_OK ) {
     106     uni->fam = fam_id;
     107
     108     if( fam_id == RX_FAM_RT ) {
     109       uni->space = IP_pref_b2_space( &(uni->u.rt) );
     110     } else {  /* RX_FAM_IN */
     111       uni->space = IP_rang_b2_space( &(uni->u.in) );
     112     }
     113   }
     114
     115   return conv;
     116 }
     117
     118
     119
     120 /* Function to fill data for radix tree */
     121 /* returns error if string is not valid, also for reverse domains */
     122 er_ret_t
     123 RP_asc2pack(rp_upd_pack_t *pack, rp_attr_t type, char *string)
         /* [<][>][^][v][top][bottom][index][help] */
     124 {
     125   er_ret_t err;
     126
     127   pack->type = type;
     128
     129   ER_dbg_va(FAC_RP, ASP_RP_PACK_DET,
     130             "RP_asc2pack: converted attr %s: %s to pack at %08x",
     131             DF_get_attribute_code(type), string, pack );
     132
     133
     134   err = RP_asc2uni(string, type, &(pack->uni) );
     135
     136   if( type == A_DN && err == IP_OK) {
     137     /* Check if it is an in-addr.arpa domain, set domain ptr only then */
     138     pack->d.domain = string;
     139   }
     140
     141   return err;
     142 }
     143
     144
     145 /* construct -K contents
     146  *
     147  * MT-NOTE: returns POITNER TO STATIC MEMORY !!!
     148  *
     149  * ASSUMES ONLY ONE UPDATE THREAD RUNNING.
     150  */
     151 void rp_make_short(rp_upd_pack_t *pack, char **ptr, int *len)
         /* [<][>][^][v][top][bottom][index][help] */
     152 {
     153 #define STR_L 2048
     154   static char buf[STR_L];
     155   char prefstr[IP_PREFSTR_MAX];
     156   char rangstr[IP_RANGSTR_MAX];
     157
     158   switch( pack->type ) {
     159   case A_RT:
     160     dieif( IP_pref_b2a( &(pack->uni.u.rt), prefstr, IP_PREFSTR_MAX) != IP_OK );
     161     snprintf(buf, STR_L, "route:    \t%s\norigin:   \t%s\n", prefstr, pack->d.origin);
     162     break;
     163   case A_I6:
     164     dieif( IP_pref_b2a( &(pack->uni.u.rt), prefstr, IP_PREFSTR_MAX) != IP_OK );
     165     snprintf(buf, STR_L, "inet6num: \t%s\n", prefstr);
     166     break;
     167   case A_IN:
     168     dieif( IP_rang_b2a( &(pack->uni.u.in), rangstr, IP_RANGSTR_MAX) != IP_OK );
     169     snprintf(buf, STR_L, "inetnum:  \t%s\n", rangstr);
     170     break;
     171   case A_DN:
     172     snprintf(buf, STR_L, "domain:   \t%s\n", pack->d.domain );
     173     break;
     174   default:
     175     /* FALLTHROUGH */
     176     ;
     177   }
     178
     179   *ptr = buf;
     180   *len = strlen(buf);
     181 }
     182
     183 /***************** set the values in rx_*_data thingies ***************/
     184 void RP_pack_set_orig(rp_attr_t  attr, rp_upd_pack_t *pack, char *origin)
         /* [<][>][^][v][top][bottom][index][help] */
     185 {
     186   pack->d.origin = origin;
     187   /* ignore attr */
     188 }
     189
     190 /* those are just interfacing to
     191  * functions to convert to IP binary format and retain raw values
     192  */
     193 void RP_pack_set_type(rp_attr_t  attr, rp_upd_pack_t *pack)
         /* [<][>][^][v][top][bottom][index][help] */
     194 {
     195   pack->type = attr;
     196   pack->uni.fam = RP_attr2fam( attr );
     197 }
     198
     199 void RP_pack_set_pref4(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack,
         /* [<][>][^][v][top][bottom][index][help] */
     200                        unsigned *prefix, unsigned *prefix_length)
     201 {
     202   IP_pref_a2v4(avalue, &(pack->uni.u.rt), prefix, prefix_length);
     203   pack->uni.space = IP_V4;
     204   RP_pack_set_type(attr, pack);
     205 }
     206
     207 void RP_pack_set_revd(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack)
         /* [<][>][^][v][top][bottom][index][help] */
     208 {
     209   dieif(IP_revd_e2b(&(pack->uni.u.rt), avalue) != IP_OK); /* assuming correctness checked */
     210   pack->d.domain = avalue;
     211   pack->uni.space = IP_pref_b2_space( &(pack->uni.u.rt) );
     212   RP_pack_set_type(attr, pack);
     213 }
     214
     215
     216 void RP_pack_set_pref6(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack,
         /* [<][>][^][v][top][bottom][index][help] */
     217                        ip_v6word_t *high, ip_v6word_t *low, unsigned *prefix_length)
     218 {
     219   IP_pref_a2v6(avalue, &(pack->uni.u.rt), high, low, prefix_length);
     220   pack->uni.space = IP_V6;
     221   RP_pack_set_type(attr, pack);
     222 }
     223
     224 void RP_pack_set_rang(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack,
         /* [<][>][^][v][top][bottom][index][help] */
     225                       unsigned *begin_in, unsigned *end_in)
     226 {
     227   IP_rang_a2v4(avalue, (ip_range_t *) &(pack->uni.u.in),
     228                begin_in, end_in);
     229   pack->uni.space = IP_V4;
     230   RP_pack_set_type(attr, pack);
     231 }
     232
     233
     234 /***************************************************************************/
     235
     236 /***************************************************************************/

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