Source File modules/rp/rp_convert.c

    1    | /***************************************
    2    |   $Revision: 1.8 $
    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   | /* return the family of tree to be used for the given attribute.
    38   |    die if not defined.
    39   | */
    40   | rx_fam_t RP_attr2fam( rp_attr_t type )
    41   | {
    42   |   rx_fam_t res = DF_attrcode_radix_family( type );
    43   |
    44   |   dieif(res == -1);
    45   |
    46   |   return res;
    47   | }
    48   |
    49   |
    50   |
    51   | /*
    52   |    returns 1 if the given space may appear for a given attribute
    53   | */
    54   | int RP_attr2spc(rp_attr_t type, ip_space_t space)
    55   | {
    56   |   char *loadv4 = DF_attrcode_radix_load_v4( type );
    57   |   char *loadv6 = DF_attrcode_radix_load_v6( type );
    58   |   char *loadqry = ( space == IP_V4 ) ? loadv4 : loadv6;
    59   |
    60   |   return ( loadqry != NULL ); /* 1 if defined, 0 otherwise */
    61   | }
    62   |
    63   |
    64   | er_ret_t
    65   | RP_asc2uni(char       *astr,       /*+ string prefix/range/IP/inaddr +*/
    66   | 	   rp_attr_t  attr,
    67   | 	   rp_uni_t   *uni)        /* destination pointer */
    68   | {
    69   |   er_ret_t   conv;
    70   |   rx_fam_t   fam_id = RP_attr2fam( attr );
    71   |   switch( attr ) {
    72   |   case A_IN:
    73   |     conv = IP_rang_e2b(&(uni->u.in), astr);
    74   |     break;
    75   |   case A_RT:
    76   |   case A_I6:
    77   |     conv = IP_pref_e2b(&(uni->u.rt), astr);
    78   |     break;
    79   |   case A_DN:
    80   |     conv = IP_revd_e2b(&(uni->u.rt), astr);
    81   |     break;
    82   |   default:
    83   |     /*    die; / * shouldn't have got here */
    84   |     conv = IP_INVARG;
    85   |   }
    86   |
    87   |   if( conv == IP_OK ) {
    88   |     uni->fam = fam_id;
    89   |
    90   |     if( fam_id == RX_FAM_RT ) {
    91   |       uni->space = IP_pref_b2_space( &(uni->u.rt) );
    92   |     } else {  /* RX_FAM_IN */
    93   |       uni->space = IP_rang_b2_space( &(uni->u.in) );
    94   |     }
    95   |   }
    96   |
    97   |   return conv;
    98   | }
    99   |
    100  |
    101  |
    102  | /* Function to fill data for radix tree */
    103  | /* returns error if string is not valid, also for reverse domains */
    104  | er_ret_t
    105  | RP_asc2pack(rp_upd_pack_t *pack, rp_attr_t type, char *string)
    106  | {
    107  |   er_ret_t err;
    108  |
    109  |   pack->type = type;
    110  |
    111  |   ER_dbg_va(FAC_RP, ASP_RP_PACK_DET,
    112  | 	    "RP_asc2pack: converted attr %s: %s to pack at %08x",
    113  | 	    DF_get_attribute_code(type), string, pack );
    114  |
    115  |
    116  |   err = RP_asc2uni(string, type, &(pack->uni) );
    117  |
    118  |   if( type == A_DN && err == IP_OK) {
    119  |     /* Check if it is an in-addr.arpa domain, set domain ptr only then */
    120  |     pack->d.domain = string;
    121  |   }
    122  |
    123  |   return err;
    124  | }
    125  |
    126  |
    127  | /* construct -K contents
    128  |  *
    129  |  * MT-NOTE: returns POITNER TO STATIC MEMORY !!!
    130  |  *
    131  |  * ASSUMES ONLY ONE UPDATE THREAD RUNNING.
    132  |  */
    133  | void rp_make_short(rp_upd_pack_t *pack, char **ptr, unsigned *len)
    134  | {
    135  | #define STR_L 2048
    136  |   static char buf[STR_L];
    137  |   char prefstr[IP_PREFSTR_MAX];
    138  |   char rangstr[IP_RANGSTR_MAX];
    139  |
    140  |   switch( pack->type ) {
    141  |   case A_RT:
    142  |     dieif( IP_pref_b2a( &(pack->uni.u.rt), prefstr, IP_PREFSTR_MAX) != IP_OK );
    143  |     snprintf(buf, STR_L, "route:    \t%s\norigin:   \t%s\n", prefstr, pack->d.origin);
    144  |     break;
    145  |   case A_I6:
    146  |     dieif( IP_pref_b2a( &(pack->uni.u.rt), prefstr, IP_PREFSTR_MAX) != IP_OK );
    147  |     snprintf(buf, STR_L, "inet6num: \t%s\n", prefstr);
    148  |     break;
    149  |   case A_IN:
    150  |     dieif( IP_rang_b2a( &(pack->uni.u.in), rangstr, IP_RANGSTR_MAX) != IP_OK );
    151  |     snprintf(buf, STR_L, "inetnum:  \t%s\n", rangstr);
    152  |     break;
    153  |   case A_DN:
    154  |     snprintf(buf, STR_L, "domain:   \t%s\n", pack->d.domain );
    155  |     break;
    156  |   default:
    157  |     /* FALLTHROUGH */
    158  |     ;
    159  |   }
    160  |
    161  |   *ptr = buf;
    162  |   *len = strlen(buf);
    163  | }
    164  |
    165  | /***************** set the values in rx_*_data thingies ***************/
    166  | void RP_pack_set_orig(rp_attr_t  attr, rp_upd_pack_t *pack, char *origin)
    167  | {
    168  |   pack->d.origin = origin;
    169  |   /* ignore attr */
    170  | }
    171  |
    172  | /* those are just interfacing to
    173  |  * functions to convert to IP binary format and retain raw values
    174  |  */
    175  | void RP_pack_set_type(rp_attr_t  attr, rp_upd_pack_t *pack)
    176  | {
    177  |   pack->type = attr;
    178  |   pack->uni.fam = RP_attr2fam( attr );
    179  | }
    180  |
    181  | void RP_pack_set_pref4(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack,
    182  | 		       unsigned *prefix, unsigned *prefix_length)
    183  | {
    184  |   IP_pref_a2v4(avalue, &(pack->uni.u.rt), prefix, prefix_length);
    185  |   pack->uni.space = IP_V4;
    186  |   RP_pack_set_type(attr, pack);
    187  | }
    188  |
    189  | void RP_pack_set_revd(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack)
    190  | {
    191  |   dieif(IP_revd_a2b(&(pack->uni.u.rt), avalue) != IP_OK); /* assuming correctness checked */
    192  |   pack->d.domain = avalue;
    193  |   pack->uni.space = IP_pref_b2_space( &(pack->uni.u.rt) );
    194  |   RP_pack_set_type(attr, pack);
    195  | }
    196  |
    197  |
    198  | void RP_pack_set_pref6(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack,
    199  | 		       ip_v6word_t *high, ip_v6word_t *low, unsigned *prefix_length)
    200  | {
    201  |   IP_pref_a2v6(avalue, &(pack->uni.u.rt), high, low, prefix_length);
    202  |   pack->uni.space = IP_V6;
    203  |   RP_pack_set_type(attr, pack);
    204  | }
    205  |
    206  | void RP_pack_set_rang(rp_attr_t  attr, char *avalue, rp_upd_pack_t *pack,
    207  | 		      unsigned *begin_in, unsigned *end_in)
    208  | {
    209  |   IP_rang_a2v4(avalue, (ip_range_t *) &(pack->uni.u.in),
    210  | 	       begin_in, end_in);
    211  |   pack->uni.space = IP_V4;
    212  |   RP_pack_set_type(attr, pack);
    213  | }
    214  |
    215  |
    216  | /***************************************************************************/
    217  |
    218  | /***************************************************************************/