modules/rp/rp_convert.c

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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: 1.9 $
   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) 1999,2000,2001                    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 "rip.h"
  34 
  35 /* return the family of tree to be used for the given attribute.
  36    die if not defined.
  37 */
  38 rx_fam_t RP_attr2fam( rp_attr_t type )
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  39 {
  40   rx_fam_t res = DF_attrcode_radix_family( type );
  41 
  42   dieif(res == -1);
  43   
  44   return res;
  45 }
  46   
  47 
  48 
  49 /* 
  50    returns 1 if the given space may appear for a given attribute 
  51 */
  52 int RP_attr2spc(rp_attr_t type, ip_space_t space)
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  53 {
  54   char *loadv4 = DF_attrcode_radix_load_v4( type );
  55   char *loadv6 = DF_attrcode_radix_load_v6( type );
  56   char *loadqry = ( space == IP_V4 ) ? loadv4 : loadv6;
  57 
  58   return ( loadqry != NULL ); /* 1 if defined, 0 otherwise */
  59 }
  60 
  61 
  62 er_ret_t
  63 RP_asc2uni(char       *astr,       /*+ string prefix/range/IP/inaddr +*/
     /* [<][>][^][v][top][bottom][index][help] */
  64            rp_attr_t  attr,
  65            rp_uni_t   *uni)        /* destination pointer */
  66 {
  67   er_ret_t   conv;
  68   rx_fam_t   fam_id = RP_attr2fam( attr );
  69   switch( attr ) {
  70   case A_IN:
  71     conv = IP_rang_e2b(&(uni->u.in), astr);
  72     break;
  73   case A_RT:
  74   case A_I6: 
  75     conv = IP_pref_e2b(&(uni->u.rt), astr);  
  76     break;
  77   case A_DN:
  78     conv = IP_revd_e2b(&(uni->u.rt), astr);
  79     break;
  80   default:
  81     /*    die; / * shouldn't have got here */
  82     conv = IP_INVARG;
  83   }
  84 
  85   if( conv == IP_OK ) {
  86     uni->fam = fam_id;
  87     
  88     if( fam_id == RX_FAM_RT ) {
  89       uni->space = IP_pref_b2_space( &(uni->u.rt) );
  90     } else {  /* RX_FAM_IN */
  91       uni->space = IP_rang_b2_space( &(uni->u.in) );
  92     }
  93   }
  94 
  95   return conv;
  96 }
  97 
  98 
  99 
 100 /* Function to fill data for radix tree */
 101 /* returns error if string is not valid, also for reverse domains */
 102 er_ret_t
 103 RP_asc2pack(rp_upd_pack_t *pack, rp_attr_t type, char *string)
     /* [<][>][^][v][top][bottom][index][help] */
 104 {
 105   er_ret_t err;
 106 
 107   pack->type = type;
 108  
 109   ER_dbg_va(FAC_RP, ASP_RP_PACK_DET, 
 110             "RP_asc2pack: converted attr %s: %s to pack at %08x",
 111             DF_get_attribute_code(type), string, pack );
 112                                   
 113  
 114   err = RP_asc2uni(string, type, &(pack->uni) );
 115   
 116   if( type == A_DN && err == IP_OK) {
 117     /* Check if it is an in-addr.arpa domain, set domain ptr only then */
 118     pack->d.domain = string;
 119   }
 120 
 121   return err;
 122 }
 123 
 124 
 125 /* construct -K contents 
 126  *
 127  * MT-NOTE: returns POITNER TO STATIC MEMORY !!!
 128  * 
 129  * ASSUMES ONLY ONE UPDATE THREAD RUNNING.
 130  */
 131 void rp_make_short(rp_upd_pack_t *pack, char **ptr, unsigned *len) 
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 132 {
 133 #undef STR_L
 134 #define STR_L 2048
 135   static char buf[STR_L];
 136   char prefstr[IP_PREFSTR_MAX];
 137   char rangstr[IP_RANGSTR_MAX];
 138 
 139   switch( pack->type ) {
 140   case A_RT: 
 141     dieif( IP_pref_b2a( &(pack->uni.u.rt), prefstr, IP_PREFSTR_MAX) != IP_OK );
 142     snprintf(buf, STR_L, "route:    \t%s\norigin:   \t%s\n", prefstr, pack->d.origin);
 143     break;
 144   case A_I6:
 145     dieif( IP_pref_b2a( &(pack->uni.u.rt), prefstr, IP_PREFSTR_MAX) != IP_OK );
 146     snprintf(buf, STR_L, "inet6num: \t%s\n", prefstr);
 147     break;
 148   case A_IN:
 149     dieif( IP_rang_b2a( &(pack->uni.u.in), rangstr, IP_RANGSTR_MAX) != IP_OK );
 150     snprintf(buf, STR_L, "inetnum:  \t%s\n", rangstr);
 151     break;
 152   case A_DN:
 153     snprintf(buf, STR_L, "domain:   \t%s\n", pack->d.domain );
 154     break;
 155   default:
 156     /* FALLTHROUGH */
 157     ;
 158   }
 159 
 160   *ptr = buf;
 161   *len = strlen(buf);
 162 }
 163 
 164 /***************** set the values in rx_*_data thingies ***************/
 165 void RP_pack_set_orig(rp_attr_t  attr, rp_upd_pack_t *pack, char *origin)
     /* [<][>][^][v][top][bottom][index][help] */
 166 {
 167   pack->d.origin = origin;
 168   /* ignore attr */
 169 }
 170 
 171 /* those are just interfacing to 
 172  * functions to convert to IP binary format and retain raw values 
 173  */
 174 void RP_pack_set_type(rp_attr_t  attr, rp_upd_pack_t *pack)
     /* [<][>][^][v][top][bottom][index][help] */
 175 {
 176   pack->type = attr;
 177   pack->uni.fam = RP_attr2fam( attr );
 178 }
 179 
 180 void RP_pack_set_pref4(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack,
     /* [<][>][^][v][top][bottom][index][help] */
 181                        unsigned *prefix, unsigned *prefix_length)
 182 {
 183   IP_pref_a2v4(avalue, &(pack->uni.u.rt), prefix, prefix_length);
 184   pack->uni.space = IP_V4;
 185   RP_pack_set_type(attr, pack);
 186 }
 187 
 188 void RP_pack_set_revd(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack)
     /* [<][>][^][v][top][bottom][index][help] */
 189 {
 190   dieif(IP_revd_a2b(&(pack->uni.u.rt), avalue) != IP_OK); /* assuming correctness checked */
 191   pack->d.domain = avalue;
 192   pack->uni.space = IP_pref_b2_space( &(pack->uni.u.rt) );
 193   RP_pack_set_type(attr, pack);
 194 }
 195 
 196 
 197 void RP_pack_set_pref6(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack,
     /* [<][>][^][v][top][bottom][index][help] */
 198                        ip_v6word_t *high, ip_v6word_t *low, unsigned *prefix_length)
 199 {
 200   IP_pref_a2v6(avalue, &(pack->uni.u.rt), high, low, prefix_length);
 201   pack->uni.space = IP_V6;
 202   RP_pack_set_type(attr, pack);
 203 }
 204 
 205 void RP_pack_set_rang(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack,
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 206                       unsigned *begin_in, unsigned *end_in)
 207 {
 208   IP_rang_a2v4(avalue, (ip_range_t *) &(pack->uni.u.in),
 209                begin_in, end_in);
 210   pack->uni.space = IP_V4;
 211   RP_pack_set_type(attr, pack);
 212 }
 213 
 214 
 215 /***************************************************************************/
 216 
 217 /***************************************************************************/

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