1 | /*************************************** 2 | $Revision: 1.18 $ 3 | 4 | which_keytypes: Determine which keys to look for. 5 | 6 | This is based on the existing Perl code. 7 | 8 | Authors: ottrey, marek 9 | 10 | ******************/ /****************** 11 | Copyright (c) 1999 RIPE NCC 12 | 13 | All Rights Reserved 14 | 15 | Permission to use, copy, modify, and distribute this software and its 16 | documentation for any purpose and without fee is hereby granted, 17 | provided that the above copyright notice appear in all copies and that 18 | both that copyright notice and this permission notice appear in 19 | supporting documentation, and that the name of the author not be 20 | used in advertising or publicity pertaining to distribution of the 21 | software without specific, written prior permission. 22 | 23 | THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 24 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL 25 | AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY 26 | DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 27 | AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 28 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 29 | ***************************************/ 30 | #include <stdio.h> 31 | #include <stdlib.h> 32 | #include <strings.h> 33 | #include <libgen.h> 34 | #include <glib.h> 35 | 36 | #include "bitmask.h" 37 | #include "memwrap.h" 38 | 39 | #define WK_IMPL 40 | #include "which_keytypes.h" 41 | #include <regex.h> 42 | 43 | 44 | #define DOMAINNAME "^[ ]*[a-zA-Z0-9-]*(\\.[a-zA-Z0-9-]+)*[ ]*$" 45 | /* add a constraint: there must be at least one character in the domain name 46 | because the TLD must not be composed of digits only */ 47 | #define DOMAINALPHA "[a-zA-Z]" 48 | 49 | #define VALIDIP6PREFIX "^[0-9A-F:]*:[0-9A-F:/]*$" /* at least one colon */ 50 | /* "^[0-9A-F]{1,4}(:[0-9A-F]{1,4}){7}$"*/ 51 | 52 | #define NET "^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$" 53 | 54 | #define ASNUM "^AS[1-9]+[0-9]{0,4}$" 55 | 56 | #define ASRANGE "^AS[0-9]{1,5}[ ]*([-][ ]*AS[0-9]{1,5}){0,1}$" /* [ ]*(-[ ]*AS[0-9]+)? */ 57 | 58 | #define NETNAME "^[A-Z][A-Z0-9-]*$" 59 | 60 | #define MAINTAINER "^[A-Z][A-Z0-9-]*$" 61 | 62 | #define LIMERICK "^LIM-[A-Z0-9-]+$" 63 | 64 | #define KEYCERT "^PGPKEY-[0-9A-F]{8}$" 65 | 66 | #define ROUTESETNAME "^RS-[A-Z0-9_-]*$" 67 | 68 | #define ASSETNAME "^AS-[A-Z0-9_-]*$" 69 | 70 | #define AUTONICPREFIXREGULAR "^AUTO-" 71 | 72 | #define IPRANGE "^[0-9]{1,3}(\\.[0-9]{1,3}){0,3}[ ]*-[ ]*[0-9]{1,3}(\\.[0-9]{1,3}){0,3}$" 73 | 74 | #define IPADDRESS "^[0-9.]+$" 75 | 76 | #define IPPREFIX "^[0-9.]+/[0-9]+$" 77 | 78 | #define PEERINGSET "^PRNG-" 79 | 80 | #define FILTERSET "^FLTR-" 81 | 82 | #define RTRSET "^RTRS-" 83 | 84 | #define NICHANDLE "^[A-Z0-9-]+$" 85 | 86 | /* 87 | XXX This seems to be the same as the Perl code. But I don't see where a " " is allowed for. 88 | I.e. Perl -> ^[a-zA-Z][\w\-\.\'\|\`]*$ 89 | Does \w include [ ;:,?/}{()+*#] ? 90 | #define NAME_B "^[a-zA-Z][a-zA-Z_0-9.'|`-]*$" 91 | */ 92 | #define NAME_B "^[a-zA-Z][a-zA-Z_0-9.'|`;:,?/}{()+*#&-]*$" 93 | 94 | #define VALIDIP4PREFIX 95 | 96 | #define EMAIL "^[.a-zA-Z0-9-]*@[a-zA-Z0-9-]*(\\.[a-zA-Z0-9-]+)*$" 97 | 98 | /*****************************************************************/ 99 | 100 | static int perform_regex_test(const char *pattern, char *string) 101 | { 102 | 103 | int match = 0; 104 | 105 | /* These are not used, since REG_NOSUB is specified in regcomp() */ 106 | size_t nmatch = 0; 107 | regmatch_t pmatch[1]; 108 | regex_t re; 109 | int err; 110 | 111 | if( (err = regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB)) != 0) 112 | { 113 | char erbuf[2048]; 114 | regerror(err,&re,erbuf,sizeof(erbuf)); 115 | die; 116 | } 117 | if (regexec(&re, string, nmatch, pmatch, 0)) 118 | match = 0; 119 | else 120 | match = 1; 121 | 122 | regfree(&re); 123 | 124 | return(match); 125 | 126 | } 127 | 128 | /* 129 | I split the isname up into isname_a & isname_b. And created isname_ab to join them together. 130 | - So I can test it properly. -ottrey 131 | */ 132 | #if 0 133 | static int isname_a(char *string) { 134 | return perform_regex_test(AUTONICPREFIXREGULAR, string); 135 | } 136 | 137 | static int isname_b(char *string) { 138 | return perform_regex_test(NAME_B, string); 139 | } 140 | 141 | static int isname_ab(char *string) { 142 | return (isname_a(string) || isname_b(string)); 143 | } 144 | #endif 145 | 146 | static int wk_is_name(char *key) { 147 | /* Everything matches to name */ 148 | return 1; 149 | } /* wk_is_name() */ 150 | 151 | /***************************************************************/ 152 | 153 | static int isdomname(char *string) { 154 | return ( perform_regex_test(DOMAINNAME, string) 155 | && perform_regex_test(DOMAINALPHA, string)); 156 | } 157 | 158 | static int wk_is_domain(char *key) { 159 | return isdomname(key); 160 | } /* wk_is_domname() */ 161 | 162 | static int wk_is_iprange(char *key) { 163 | return perform_regex_test(IPRANGE, key); 164 | } /* wk_is_iprange() */ 165 | 166 | static int wk_is_hostname(char *key) { 167 | /* XXX Why is there a hostname & a domainname? */ 168 | /* Answer - hostname can be a domainname or an IP */ 169 | return (isdomname(key) || wk_is_iprange(key)); 170 | } /* wk_is_hostname() */ 171 | 172 | /* WK_to_string() */ 173 | /*++++++++++++++++++++++++++++++++++++++ 174 | Convert the which keytypes bitmap into a string. 175 | 176 | mask_t wk The which keytypes mask to be converted. 177 | 178 | More: 179 | +html+ <PRE> 180 | Authors: 181 | ottrey 182 | +html+ </PRE><DL COMPACT> 183 | +html+ <DT>Online References: 184 | +html+ <DD><UL> 185 | +html+ </UL></DL> 186 | 187 | ++++++++++++++++++++++++++++++++++++++*/ 188 | char *WK_to_string(mask_t wk) { 189 | 190 | return MA_to_string(wk, Keytypes); 191 | 192 | } /* WK_to_string() */ 193 | 194 | /* WK_new() */ 195 | /*++++++++++++++++++++++++++++++++++++++ 196 | Create a new which keytypes bitmap. 197 | 198 | char *key The key to be examined. 199 | 200 | More: 201 | +html+ <PRE> 202 | Authors: 203 | ottrey 204 | +html+ </PRE><DL COMPACT> 205 | +html+ <DT>Online References: 206 | +html+ <DD><UL> 207 | +html+ </UL></DL> 208 | 209 | ++++++++++++++++++++++++++++++++++++++*/ 210 | mask_t WK_new(char *key) { 211 | mask_t wk; 212 | 213 | wk = MA_new(MA_END); 214 | 215 | MA_set(&wk, WK_NAME, wk_is_name(key)); 216 | MA_set(&wk, WK_NIC_HDL, perform_regex_test(NICHANDLE, key)); 217 | MA_set(&wk, WK_EMAIL, perform_regex_test(EMAIL, key)); 218 | MA_set(&wk, WK_MNTNER, perform_regex_test(MAINTAINER, key)); 219 | MA_set(&wk, WK_KEY_CERT, perform_regex_test(KEYCERT, key)); 220 | MA_set(&wk, WK_IPADDRESS, perform_regex_test(IPADDRESS, key)); 221 | MA_set(&wk, WK_IPRANGE, wk_is_iprange(key)); 222 | MA_set(&wk, WK_IPPREFIX, perform_regex_test(IPPREFIX, key)); 223 | MA_set(&wk, WK_IP6PREFIX, perform_regex_test(VALIDIP6PREFIX, key)); 224 | MA_set(&wk, WK_NETNAME, perform_regex_test(NETNAME, key)); 225 | MA_set(&wk, WK_NET6NAME, perform_regex_test(NETNAME, key)); 226 | MA_set(&wk, WK_AUTNUM, perform_regex_test(ASNUM, key)); 227 | MA_set(&wk, WK_ASSETNAME, perform_regex_test(ASSETNAME, key)); 228 | MA_set(&wk, WK_ROUTESETNAME, perform_regex_test(ROUTESETNAME, key)); 229 | MA_set(&wk, WK_DOMAIN, wk_is_domain(key)); 230 | MA_set(&wk, WK_HOSTNAME, wk_is_hostname(key)); 231 | MA_set(&wk, WK_LIMERICK, perform_regex_test(LIMERICK, key)); 232 | MA_set(&wk, WK_ASRANGE, perform_regex_test(ASRANGE, key)); 233 | MA_set(&wk, WK_PEERINGSET, perform_regex_test(PEERINGSET, key)); 234 | MA_set(&wk, WK_FILTERSET, perform_regex_test(FILTERSET, key)); 235 | MA_set(&wk, WK_RTRSET, perform_regex_test(RTRSET, key)); 236 | 237 | return wk; 238 | 239 | } /* WK_new() */