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1 /* |
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 * |
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4 * Copyright 2013 Olaf Wintermann. All rights reserved. |
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5 * |
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6 * Redistribution and use in source and binary forms, with or without |
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7 * modification, are permitted provided that the following conditions are met: |
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8 * |
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9 * 1. Redistributions of source code must retain the above copyright |
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10 * notice, this list of conditions and the following disclaimer. |
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11 * |
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12 * 2. Redistributions in binary form must reproduce the above copyright |
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13 * notice, this list of conditions and the following disclaimer in the |
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14 * documentation and/or other materials provided with the distribution. |
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15 * |
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 * POSSIBILITY OF SUCH DAMAGE. |
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27 */ |
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28 |
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29 #include <stdio.h> |
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30 #include <stdlib.h> |
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31 |
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32 #include "keyfile.h" |
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33 |
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34 KeyfileConfig *load_keyfile_config(char *file) { |
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35 FILE *in = fopen(file, "r"); |
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36 if(in == NULL) { |
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37 return NULL; |
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38 } |
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39 |
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40 KeyfileConfig *conf = malloc(sizeof(KeyfileConfig)); |
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41 conf->parser.parse = keyfile_parse; |
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42 conf->file = file; |
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43 conf->users = NULL; |
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44 |
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45 int r = cfg_parse_basic_file((ConfigParser*)conf, in); |
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46 if(r != 0) { |
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47 // TODO: free |
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48 return NULL; |
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49 } |
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50 |
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51 fclose(in); |
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52 |
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53 return conf; |
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54 } |
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55 |
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56 void free_keyfile_config(KeyfileConfig *conf) { |
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57 if(conf->users) { |
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58 ucx_list_free(conf->users); |
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59 } |
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60 ucx_mempool_free(conf->parser.mp); |
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61 free(conf); |
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62 } |
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63 |
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64 int keyfile_parse(void *p, ConfigLine *begin, ConfigLine *end, sstr_t line) { |
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65 KeyfileConfig *conf = p; |
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66 UcxMempool *mp = conf->parser.mp; |
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67 |
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68 size_t tkn = 0; |
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69 sstr_t *tk = sstrsplit(line, sstrn(";", 1), &tkn); |
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70 |
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71 if(tkn < 2) { |
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72 return 1; |
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73 } |
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74 |
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75 KeyfileEntry *entry = OBJ_NEW(mp, KeyfileEntry); |
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76 entry->groups = NULL; |
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77 entry->numgroups = 0; |
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78 |
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79 // get user name |
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80 entry->name = sstrdup_mp(mp, tk[0]); |
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81 |
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82 // get hash |
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83 sstr_t hash = sstrtrim(tk[1]); |
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84 if(hash.length < 4) { |
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85 // to short |
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86 return 1; |
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87 } |
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88 if(hash.ptr[0] != '{') { |
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89 // missing hash type specification |
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90 return 1; |
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91 } |
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92 |
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93 // get hash type and data |
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94 sstr_t hash_type; |
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95 sstr_t hash_data; |
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96 for(int i=1;i<hash.length;i++) { |
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97 if(hash.ptr[i] == '}') { |
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98 hash_type = sstrsubsl(hash, 1, i-1); |
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99 hash_data = sstrsubs(hash, i+1); |
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100 } |
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101 } |
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102 |
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103 if(!sstrcmp(hash_type, sstr("SSHA"))) { |
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104 entry->hashtype = KEYFILE_SSHA; |
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105 } else { |
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106 // unkown hash type |
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107 fprintf(stderr, "unknown hash type: %s\n", sstrdup(hash_type).ptr); |
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108 return 1; |
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109 } |
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110 |
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111 entry->hashdata = sstrdup_mp(mp, hash_data); |
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112 |
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113 // get groups |
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114 if(tkn == 3) { |
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115 sstr_t groups_str = sstrtrim(tk[2]); |
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116 size_t ngroups = 0; |
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117 sstr_t *groups = sstrsplit(groups_str, sstrn(",", 1), &ngroups); |
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118 entry->groups = calloc(ngroups, sizeof(sstr_t)); |
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119 entry->numgroups = ngroups; |
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120 for(int i=0;i<ngroups;i++) { |
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121 entry->groups[i] = sstrdup_mp(mp, sstrtrim(groups[i])); |
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122 free(groups[i].ptr); |
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123 } |
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124 free(groups); |
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125 } |
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126 |
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127 // add user |
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128 conf->users = ucx_list_append(conf->users, entry); |
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129 |
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130 // free tokens |
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131 for(int i=0;i<tkn;i++) { |
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132 free(tk[i].ptr); |
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133 } |
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134 free(tk); |
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135 |
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136 return 0; |
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137 } |