1 | |
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2 | /** |
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3 | ** abac_aspect.c |
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4 | **/ |
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5 | |
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6 | |
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7 | #include <assert.h> |
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8 | #include <stdlib.h> |
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9 | #include <stdio.h> |
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10 | #include <string.h> |
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11 | |
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12 | #include "abac_internal.h" |
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13 | |
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14 | static int debug=0; |
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15 | /* |
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16 | A.role <- B |
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17 | A.role <- B.role |
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18 | A.role <- B.role.role |
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19 | |
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20 | A.oset <- B |
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21 | A.oset <- Obj |
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22 | A.oset <- B.oset |
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23 | A.oset <- B.role.oset |
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24 | */ |
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25 | |
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26 | /* can store either a role or oset */ |
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27 | struct _abac_aspect_t { |
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28 | int aspect_type; |
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29 | int is_object; |
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30 | |
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31 | char *principal_name; |
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32 | char *principal_name_p; // pPrincipal_name |
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33 | abac_term_t *principal_object; |
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34 | |
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35 | char *linked_role_name; |
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36 | abac_param_list_t *linked_role_params; |
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37 | |
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38 | char *aspect_name; |
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39 | abac_param_list_t *aspect_params; |
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40 | |
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41 | char *type_string; // "oset" or "role" |
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42 | |
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43 | abac_list_t *prereqs; |
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44 | int refcount; |
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45 | }; |
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46 | |
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47 | /**************************************************************/ |
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48 | void abac_aspect_dump(abac_aspect_t *ptr, char* offset) |
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49 | { |
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50 | char *tmp=NULL; |
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51 | asprintf(&tmp," %s",offset); |
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52 | if(ptr->prereqs != 0) { |
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53 | abac_aspect_t *cur; |
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54 | abac_list_foreach(ptr->prereqs, cur, |
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55 | if(cur) |
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56 | abac_aspect_dump(cur, tmp); |
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57 | ); |
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58 | return; |
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59 | } |
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60 | |
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61 | printf("\n..... an aspect .....\n"); |
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62 | printf("%s aspect_type: %d(%s)\n", offset, ptr->aspect_type, abac_aspect_type_string(ptr)); |
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63 | printf("%s is_object: %d\n", offset, ptr->is_object); |
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64 | printf("%s principal_name: %s\n", offset, ptr->principal_name); |
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65 | if(ptr->principal_name_p) |
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66 | printf("%s principal_name_p: %s\n", offset, ptr->principal_name_p); |
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67 | else printf("%s principal_name_p: --\n", offset); |
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68 | if(ptr->principal_object) |
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69 | abac_term_dump(ptr->principal_object, tmp); |
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70 | else ("%s principal_object: --\n", offset); |
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71 | if(ptr->linked_role_name) |
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72 | printf("%s linked_role_name: %s\n", offset, ptr->linked_role_name); |
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73 | else printf("%s linked_role_name: --\n", offset); |
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74 | if(ptr->linked_role_params) |
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75 | abac_param_dump(ptr->linked_role_params, tmp); |
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76 | else printf("%s linked_role_params: --\n", offset); |
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77 | if(ptr->aspect_name) |
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78 | printf("%s aspect_name: %s\n", offset, ptr->aspect_name); |
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79 | else printf("%s aspect_name: --\n", offset); |
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80 | if(ptr->aspect_params) |
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81 | abac_param_dump(ptr->aspect_params, tmp); |
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82 | else printf("%s aspect_params: --\n", offset); |
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83 | if(ptr->type_string) |
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84 | printf("%s type_string:- %s\n", offset, ptr->type_string); |
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85 | else printf("%s type_string: --\n", offset); |
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86 | printf("%s refcount:- %d\n", offset, ptr->refcount); |
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87 | printf(".................................."); |
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88 | free(tmp); |
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89 | } |
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90 | |
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91 | bool abac_aspect_is_oset(abac_aspect_t *ptr) |
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92 | { |
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93 | assert(ptr); |
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94 | if(ptr->aspect_type==e_ASPECTTYPE_OSET) |
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95 | return 1; |
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96 | return 0; |
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97 | } |
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98 | |
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99 | |
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100 | bool abac_aspect_is_role(abac_aspect_t *ptr) |
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101 | { |
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102 | assert(ptr); |
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103 | if(ptr->aspect_type==e_ASPECTTYPE_ROLE) |
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104 | return 1; |
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105 | return 0; |
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106 | } |
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107 | |
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108 | bool abac_aspect_is_intersecting(abac_aspect_t *ptr) |
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109 | { |
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110 | assert(ptr); |
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111 | if(ptr->aspect_type==e_ASPECTTYPE_INTERSECTING) |
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112 | return 1; |
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113 | return 0; |
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114 | } |
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115 | |
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116 | /* A.role->B or A.oset->B */ |
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117 | bool abac_aspect_is_principal(abac_aspect_t *ptr) { |
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118 | assert(ptr != NULL); |
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119 | return ptr->is_object == 0 && |
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120 | ptr->aspect_name == NULL && |
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121 | ptr->linked_role_name == NULL && |
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122 | ptr->prereqs == NULL; |
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123 | } |
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124 | |
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125 | /* A.oset->O */ |
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126 | bool abac_aspect_is_object(abac_aspect_t *ptr) |
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127 | { |
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128 | assert(ptr); |
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129 | if(ptr->aspect_type == e_ASPECTTYPE_OSET) |
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130 | return ptr->is_object; |
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131 | return 0; |
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132 | } |
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133 | |
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134 | /* A.role->B.role.role or A.oset->B.role.oset */ |
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135 | bool abac_aspect_is_linking(abac_aspect_t *ptr) |
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136 | { |
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137 | assert(ptr); |
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138 | return ptr->linked_role_name != NULL; |
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139 | } |
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140 | |
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141 | /** |
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142 | * True if an aspect is an intersection. |
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143 | */ |
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144 | bool abac_aspect_is_intersection(abac_aspect_t *ptr) |
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145 | { |
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146 | assert(ptr); |
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147 | return ptr->prereqs != NULL; |
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148 | } |
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149 | |
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150 | /** |
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151 | * return the type that is common to all the intersecting aspects |
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152 | */ |
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153 | int abac_aspect_intersecting_aspect_type(abac_aspect_t *ptr) |
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154 | { |
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155 | assert(ptr); |
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156 | assert(ptr->prereqs); |
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157 | abac_aspect_t *cur; |
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158 | int first=1; |
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159 | int type; |
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160 | abac_list_foreach(ptr->prereqs, cur, |
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161 | if(first) { |
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162 | type=abac_aspect_aspect_type(cur); |
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163 | first=0; |
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164 | } else { |
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165 | if(abac_aspect_aspect_type(cur) != type) |
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166 | errx(1,"Intersecting tails are not of the same type"); |
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167 | } |
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168 | ); |
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169 | return type; |
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170 | } |
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171 | |
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172 | /** |
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173 | * Returns the prereqs of an intersection. |
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174 | */ |
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175 | abac_list_t *abac_aspect_prereqs(abac_aspect_t *ptr) |
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176 | { |
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177 | assert(ptr); |
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178 | return ptr->prereqs; |
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179 | } |
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180 | |
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181 | char* abac_aspect_type_string(abac_aspect_t *ptr) |
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182 | { |
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183 | assert(ptr); |
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184 | return ptr->type_string; |
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185 | } |
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186 | |
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187 | int abac_aspect_aspect_type(abac_aspect_t *ptr) |
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188 | { |
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189 | assert(ptr); |
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190 | return ptr->aspect_type; |
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191 | } |
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192 | |
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193 | /** |
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194 | * Returns the linked part of a linking aspect. |
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195 | * For instance, if the aspect is A.r1.r2, this returns r1. |
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196 | */ |
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197 | char *abac_aspect_linked_role_name(abac_aspect_t *ptr) |
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198 | { |
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199 | assert(ptr); |
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200 | return ptr->linked_role_name; |
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201 | } |
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202 | |
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203 | /* A.r1 without params or constraints, callee needs to free it*/ |
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204 | char *abac_aspect_linked_role_bare(abac_aspect_t *ptr) |
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205 | { |
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206 | assert(ptr); |
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207 | assert(ptr->principal_name); |
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208 | assert(ptr->linked_role_name); |
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209 | char *tmp=NULL; |
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210 | asprintf(&tmp,"%s.%s",ptr->principal_name,ptr->linked_role_name); |
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211 | return tmp; |
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212 | } |
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213 | |
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214 | abac_param_list_t *abac_aspect_linked_role_params(abac_aspect_t *ptr) |
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215 | { |
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216 | assert(ptr); |
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217 | return ptr->linked_role_params; |
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218 | } |
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219 | |
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220 | /** |
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221 | * Returns the name of an aspect. If the aspect is A.r1 then return r1. |
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222 | * If the aspect is A.r1.r2 then return r2. |
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223 | */ |
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224 | char *abac_aspect_aspect_name(abac_aspect_t *ptr) { |
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225 | assert(ptr); |
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226 | return ptr->aspect_name; |
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227 | } |
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228 | |
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229 | abac_param_list_t *abac_aspect_aspect_params(abac_aspect_t *ptr) |
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230 | { |
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231 | assert(ptr); |
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232 | return ptr->aspect_params; |
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233 | } |
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234 | |
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235 | /** |
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236 | * Returns the principal part of an aspect. The stuff before the first dot. |
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237 | */ |
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238 | char *abac_aspect_principal_name(abac_aspect_t *ptr) |
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239 | { |
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240 | assert(ptr); |
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241 | if(USE("ABAC_CN")) |
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242 | return abac_cn_with_sha(ptr->principal_name); |
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243 | if(ABAC_IN_PROLOG) { |
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244 | return ptr->principal_name_p; |
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245 | } else return ptr->principal_name; |
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246 | } |
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247 | |
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248 | char *abac_aspect_principal_principalname(abac_aspect_t *ptr) |
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249 | { |
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250 | assert(ptr); |
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251 | if(ABAC_IN_PROLOG) |
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252 | return ptr->principal_name_p; |
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253 | return ptr->principal_name; |
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254 | } |
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255 | |
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256 | char *abac_aspect_principal_type(abac_aspect_t *ptr) |
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257 | { |
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258 | assert(ptr); |
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259 | return abac_idtype_with_sha(ptr->principal_name); |
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260 | } |
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261 | |
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262 | char *abac_aspect_principal_cn(abac_aspect_t *ptr) |
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263 | { |
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264 | assert(ptr); |
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265 | return abac_cn_with_sha(ptr->principal_name); |
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266 | } |
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267 | |
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268 | abac_term_t *abac_aspect_object_term(abac_aspect_t *ptr) |
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269 | { |
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270 | return ptr->principal_object; |
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271 | } |
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272 | |
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273 | char *abac_aspect_object_name(abac_aspect_t *ptr) |
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274 | { |
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275 | assert(ptr); |
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276 | assert(ptr->is_object); |
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277 | abac_term_t *obj=ptr->principal_object; |
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278 | return abac_term_name(obj); |
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279 | } |
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280 | |
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281 | bool _abac_aspect_object_is_time_type(abac_aspect_t *ptr) |
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282 | { |
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283 | abac_term_t *obj=ptr->principal_object; |
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284 | return abac_term_is_time_type(obj); |
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285 | } |
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286 | |
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287 | char *abac_aspect_object_type(abac_aspect_t *ptr) |
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288 | { |
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289 | assert(ptr); |
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290 | assert(ptr->is_object); |
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291 | abac_term_t *obj=ptr->principal_object; |
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292 | char *tmp=abac_term_type_name(obj); |
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293 | if(debug) printf("abac_aspect_object_type: checking on object type, %s\n",tmp); |
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294 | return tmp; |
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295 | } |
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296 | |
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297 | abac_condition_t *abac_aspect_object_constraint(abac_aspect_t *ptr) |
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298 | { |
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299 | assert(ptr != NULL); |
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300 | assert(ptr->is_object); |
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301 | abac_term_t *obj=ptr->principal_object; |
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302 | return abac_term_constraint(obj); |
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303 | } |
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304 | |
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305 | char* abac_aspect_get_issuer_keytype(abac_aspect_t *ptr) |
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306 | { |
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307 | abac_id_t *issuer_id=NULL; |
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308 | char *principalname=abac_aspect_principal_principalname(ptr); |
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309 | if(principalname) { |
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310 | abac_id_credential_t *id_cred=abac_id_credential_lookup(principalname); |
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311 | if(id_cred) { |
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312 | issuer_id=abac_id_credential_id(id_cred); |
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313 | return abac_id_keyid(issuer_id); |
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314 | } |
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315 | } |
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316 | return NULL; |
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317 | } |
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318 | |
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319 | int abac_aspect_get_issuer_idtype(abac_aspect_t *ptr) |
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320 | { |
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321 | abac_id_t *issuer_id=NULL; |
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322 | char *principalname=abac_aspect_principal_principalname(ptr); |
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323 | if(principalname) { |
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324 | abac_id_credential_t *id_cred=abac_id_credential_lookup(principalname); |
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325 | if(id_cred) { |
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326 | issuer_id=abac_id_credential_id(id_cred); |
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327 | return abac_id_idtype(issuer_id); |
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328 | } |
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329 | } |
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330 | return 0; |
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331 | } |
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332 | |
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333 | abac_id_t *abac_aspect_get_issuer_id(abac_aspect_t *ptr) |
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334 | { |
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335 | abac_id_t *issuer_id=NULL; |
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336 | char *principalname=abac_aspect_principal_principalname(ptr); |
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337 | if(principalname) { |
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338 | abac_id_credential_t *id_cred=abac_id_credential_lookup(principalname); |
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339 | if(id_cred) |
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340 | issuer_id=abac_id_credential_id(id_cred); |
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341 | } |
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342 | return issuer_id; |
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343 | } |
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344 | /** |
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345 | * Increase a aspect's reference count. |
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346 | */ |
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347 | abac_aspect_t *abac_aspect_dup(abac_aspect_t *ptr) |
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348 | { |
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349 | assert(ptr != NULL); |
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350 | ++ptr->refcount; |
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351 | return ptr; |
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352 | } |
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353 | |
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354 | /** |
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355 | * Decrease an aspect's reference count, freeing it when it reaches 0. |
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356 | */ |
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357 | void abac_aspect_free(abac_aspect_t *ptr) { |
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358 | |
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359 | if(debug) { |
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360 | if(ptr->aspect_name) |
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361 | printf("DEBUG:trying to freeing an aspect %d(%s:%d)\n",(int)ptr, ptr->aspect_name, ptr->refcount); |
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362 | else |
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363 | printf("DEBUG:trying to freeing an aspect %d(M:%d)\n",(int)ptr,ptr->refcount); |
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364 | |
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365 | } |
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366 | |
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367 | assert(ptr); |
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368 | |
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369 | --ptr->refcount; |
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370 | if (ptr->refcount > 0) |
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371 | return; |
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372 | |
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373 | if(debug) { |
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374 | if(ptr->aspect_name) |
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375 | printf("DEBUG:freeing this aspect %d(%s:%d)\n",(int)ptr, ptr->aspect_name, ptr->refcount); |
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376 | else printf("DEBUG:freeing this aspect %d(M:%d)\n",(int)ptr, ptr->refcount); |
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377 | } |
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378 | |
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379 | if(ptr->principal_name) free(ptr->principal_name); |
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380 | if(ptr->principal_name_p) free(ptr->principal_name_p); |
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381 | if(ptr->linked_role_name) free(ptr->linked_role_name); |
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382 | if(ptr->aspect_name) free(ptr->aspect_name); |
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383 | |
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384 | if(ptr->type_string) free(ptr->type_string); |
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385 | |
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386 | if (ptr->aspect_params != NULL) { |
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387 | abac_param_list_free(ptr->aspect_params); |
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388 | } |
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389 | |
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390 | if (ptr->linked_role_params != NULL) { |
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391 | abac_param_list_free(ptr->linked_role_params); |
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392 | } |
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393 | |
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394 | if (ptr->prereqs != NULL) { |
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395 | abac_aspect_t *cur=NULL; |
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396 | abac_list_foreach(ptr->prereqs, cur, |
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397 | abac_aspect_free(cur); |
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398 | ); |
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399 | abac_list_free(ptr->prereqs); |
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400 | } |
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401 | |
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402 | free(ptr); |
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403 | } |
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404 | |
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405 | /**********************************************************************/ |
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406 | |
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407 | void abac_aspect_add_param(abac_aspect_t *ptr, abac_term_t *param) |
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408 | { |
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409 | if(ptr->aspect_params == NULL) { |
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410 | ptr->aspect_params=abac_param_list_new(param); |
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411 | } else { |
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412 | abac_param_list_add_term(ptr->aspect_params, param); |
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413 | } |
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414 | } |
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415 | |
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416 | void abac_aspect_add_intersecting_aspect(abac_aspect_t *ptr, abac_aspect_t *aspect) |
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417 | { |
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418 | abac_list_add(ptr->prereqs, abac_aspect_dup(aspect)); |
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419 | } |
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420 | |
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421 | void abac_aspect_add_linked_param(abac_aspect_t *ptr, abac_term_t *param) |
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422 | { |
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423 | if(ptr->linked_role_params == NULL) { |
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424 | ptr->linked_role_params=abac_param_list_new(param); |
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425 | } else { |
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426 | abac_param_list_add_term(ptr->linked_role_params, param); |
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427 | } |
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428 | } |
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429 | |
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430 | |
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431 | /**********************************************************************/ |
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432 | |
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433 | /** |
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434 | * Create a new principal and initialize it. |
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435 | * always with the proper SHA string |
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436 | */ |
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437 | static abac_aspect_t *_abac_aspect_init() |
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438 | { |
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439 | abac_aspect_t *ptr = (abac_aspect_t *) abac_xmalloc(sizeof(abac_aspect_t)); |
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440 | |
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441 | ptr->is_object=0; |
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442 | ptr->principal_name = NULL; |
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443 | ptr->principal_name_p = NULL; |
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444 | ptr->aspect_type=e_ASPECTTYPE_NULL; |
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445 | |
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446 | ptr->aspect_name = NULL; |
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447 | ptr->aspect_params = NULL; |
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448 | |
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449 | ptr->linked_role_name = NULL; |
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450 | ptr->linked_role_params = NULL; |
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451 | |
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452 | ptr->type_string=NULL; |
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453 | |
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454 | ptr->prereqs = NULL; |
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455 | ptr->refcount = 1; |
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456 | } |
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457 | |
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458 | abac_aspect_t *abac_aspect_principal_new(int type, char *principal_name) |
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459 | { |
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460 | assert(principal_name != NULL); |
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461 | |
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462 | if (strlen(principal_name) == 0) |
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463 | return NULL; |
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464 | |
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465 | /* XXX currently, it might be good if the principal_name is used o |
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466 | lookup the hashed id table and somehow link to the ID that it belongs |
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467 | too, currently, we check it later.. */ |
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468 | abac_aspect_t *ptr = _abac_aspect_init(); |
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469 | ptr->aspect_type=type; |
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470 | ptr->principal_name = strdup(principal_name); |
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471 | ptr->principal_name_p = prologIt(principal_name); |
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472 | if(type==e_ASPECTTYPE_ROLE) |
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473 | ptr->type_string=abac_xstrdup("role"); |
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474 | if(type==e_ASPECTTYPE_OSET) |
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475 | ptr->type_string=abac_xstrdup("oset"); |
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476 | return ptr; |
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477 | } |
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478 | |
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479 | abac_aspect_t *abac_aspect_role_principal_new(char *principal_name) |
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480 | { |
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481 | return abac_aspect_principal_new(e_ASPECTTYPE_ROLE,principal_name); |
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482 | } |
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483 | |
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484 | abac_aspect_t *abac_aspect_role_principal_create(char *principal_name) |
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485 | { |
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486 | return abac_aspect_principal_new(e_ASPECTTYPE_ROLE,principal_name); |
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487 | } |
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488 | |
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489 | abac_aspect_t *abac_aspect_oset_principal_new(char *principal_name) |
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490 | { |
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491 | return abac_aspect_principal_new(e_ASPECTTYPE_OSET,principal_name); |
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492 | } |
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493 | |
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494 | abac_aspect_t *abac_aspect_oset_principal_create(char *principal_name) |
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495 | { |
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496 | return abac_aspect_principal_new(e_ASPECTTYPE_OSET,principal_name); |
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497 | } |
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498 | |
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499 | abac_aspect_t *abac_aspect_object_new(int type, abac_term_t *object) |
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500 | { |
---|
501 | assert(object != NULL); |
---|
502 | abac_aspect_t *ptr = _abac_aspect_init(); |
---|
503 | ptr->aspect_type=type; |
---|
504 | ptr->is_object =1; |
---|
505 | ptr->principal_object = object; |
---|
506 | /* can not be role type */ |
---|
507 | if(type==e_ASPECTTYPE_OSET) |
---|
508 | ptr->type_string=abac_xstrdup("oset"); |
---|
509 | |
---|
510 | return ptr; |
---|
511 | } |
---|
512 | |
---|
513 | abac_aspect_t *abac_aspect_oset_object_new(abac_term_t *object) |
---|
514 | { |
---|
515 | return abac_aspect_object_new(e_ASPECTTYPE_OSET, object); |
---|
516 | } |
---|
517 | |
---|
518 | abac_aspect_t *abac_aspect_oset_object_create(abac_term_t *object) |
---|
519 | { |
---|
520 | return abac_aspect_object_new(e_ASPECTTYPE_OSET,object); |
---|
521 | } |
---|
522 | abac_aspect_t *abac_aspect_new(int type, char *principal_name, char *aspect_name) |
---|
523 | { |
---|
524 | assert(principal_name != NULL); |
---|
525 | assert(aspect_name != NULL); |
---|
526 | |
---|
527 | if (strlen(principal_name) == 0 || strlen(aspect_name) == 0) |
---|
528 | return NULL; |
---|
529 | |
---|
530 | abac_aspect_t *ptr = _abac_aspect_init(); |
---|
531 | |
---|
532 | ptr->principal_name = strdup(principal_name); |
---|
533 | ptr->principal_name_p = prologIt(principal_name); |
---|
534 | ptr->aspect_type=type; |
---|
535 | |
---|
536 | ptr->aspect_name = abac_xstrdup(aspect_name); |
---|
537 | |
---|
538 | if(type==e_ASPECTTYPE_OSET) |
---|
539 | ptr->type_string= abac_xstrdup("oset"); |
---|
540 | else |
---|
541 | ptr->type_string= abac_xstrdup("role"); |
---|
542 | |
---|
543 | if(debug) |
---|
544 | printf("DEBUG:adding a new aspect (%s) to principal (%s)\n", |
---|
545 | ptr->aspect_name, ptr->principal_name); |
---|
546 | return ptr; |
---|
547 | } |
---|
548 | |
---|
549 | abac_aspect_t *abac_aspect_oset_new(char *principal_name, char *oset_name) |
---|
550 | { |
---|
551 | return abac_aspect_new(e_ASPECTTYPE_OSET,principal_name, oset_name); |
---|
552 | } |
---|
553 | |
---|
554 | abac_aspect_t *abac_aspect_oset_create(char *principal_name, char *oset_name) |
---|
555 | { |
---|
556 | return abac_aspect_new(e_ASPECTTYPE_OSET,principal_name,oset_name); |
---|
557 | } |
---|
558 | |
---|
559 | abac_aspect_t *abac_aspect_role_new(char *principal_name, char *oset_name) |
---|
560 | { |
---|
561 | return abac_aspect_new(e_ASPECTTYPE_ROLE,principal_name, oset_name); |
---|
562 | } |
---|
563 | |
---|
564 | abac_aspect_t *abac_aspect_role_create(char *principal_name, char *role_name) |
---|
565 | { |
---|
566 | return abac_aspect_new(e_ASPECTTYPE_ROLE,principal_name,role_name); |
---|
567 | } |
---|
568 | |
---|
569 | /** |
---|
570 | * Created a new linking role/oset and initialize it. |
---|
571 | */ |
---|
572 | abac_aspect_t *abac_aspect_linking_new(int type, char *principal_name, |
---|
573 | char *linked_role_name, char *aspect_name) |
---|
574 | { |
---|
575 | assert(principal_name != NULL); |
---|
576 | assert(linked_role_name != NULL); |
---|
577 | assert(aspect_name != NULL); |
---|
578 | |
---|
579 | if (strlen(principal_name) == 0 || |
---|
580 | strlen(linked_role_name) == 0 || strlen(aspect_name) == 0) |
---|
581 | return NULL; |
---|
582 | |
---|
583 | abac_aspect_t *ptr = _abac_aspect_init(); |
---|
584 | |
---|
585 | ptr->is_object=0; |
---|
586 | ptr->aspect_type=type; |
---|
587 | ptr->principal_name = strdup(principal_name); |
---|
588 | ptr->principal_name_p = prologIt(principal_name); |
---|
589 | |
---|
590 | ptr->linked_role_name = strdup(linked_role_name); |
---|
591 | ptr->aspect_name = strdup(aspect_name); |
---|
592 | ptr->aspect_params = NULL; |
---|
593 | |
---|
594 | if(debug) |
---|
595 | printf("DEBUG:adding a new linked (%s) to oset/role(%s) for principal(%s)\n", |
---|
596 | ptr->linked_role_name, ptr->aspect_name, ptr->principal_name); |
---|
597 | |
---|
598 | if(type==e_ASPECTTYPE_OSET) |
---|
599 | ptr->type_string=abac_xstrdup("oset"); |
---|
600 | else ptr->type_string=abac_xstrdup("role"); |
---|
601 | |
---|
602 | return ptr; |
---|
603 | } |
---|
604 | |
---|
605 | abac_aspect_t *abac_aspect_role_linking_new(char *principal_name, char *linked_role_name, |
---|
606 | char *role_name) |
---|
607 | { |
---|
608 | return abac_aspect_linking_new(e_ASPECTTYPE_ROLE, |
---|
609 | principal_name, linked_role_name, role_name); |
---|
610 | } |
---|
611 | |
---|
612 | abac_aspect_t *abac_aspect_oset_linking_new(char *principal_name, char *linked_role_name, |
---|
613 | char *oset_name) |
---|
614 | { |
---|
615 | return abac_aspect_linking_new(e_ASPECTTYPE_OSET, |
---|
616 | principal_name, linked_role_name, oset_name); |
---|
617 | } |
---|
618 | |
---|
619 | /** |
---|
620 | * Create an intersection oset/role. |
---|
621 | */ |
---|
622 | abac_aspect_t *abac_aspect_intersection_new(abac_aspect_t *aspect) |
---|
623 | { |
---|
624 | abac_aspect_t *ptr = _abac_aspect_init(); |
---|
625 | ptr->aspect_type=e_ASPECTTYPE_INTERSECTING; |
---|
626 | abac_list_t *prereqs = abac_list_new(); |
---|
627 | abac_list_add(prereqs, abac_aspect_dup(aspect)); |
---|
628 | ptr->prereqs = prereqs; |
---|
629 | ptr->refcount = 1; |
---|
630 | return ptr; |
---|
631 | } |
---|
632 | |
---|
633 | /*******************************************************************/ |
---|
634 | char *abac_aspect_intersecting_string_with_condition(int typed,abac_aspect_t *ptr) |
---|
635 | { |
---|
636 | assert(ptr != NULL); |
---|
637 | char *tmp=NULL; |
---|
638 | if (ptr->prereqs != NULL) { |
---|
639 | abac_aspect_t *cur; |
---|
640 | abac_list_foreach(ptr->prereqs, cur, |
---|
641 | char *ntmp=NULL; |
---|
642 | if(typed) |
---|
643 | ntmp=abac_aspect_typed_string_with_condition(cur); |
---|
644 | else |
---|
645 | ntmp=abac_aspect_string_with_condition(cur); |
---|
646 | if(tmp==NULL) { |
---|
647 | asprintf(&tmp,"%s",ntmp); |
---|
648 | } else { |
---|
649 | asprintf(&tmp,"%s & %s",tmp, ntmp); |
---|
650 | } |
---|
651 | ); |
---|
652 | } |
---|
653 | return tmp; |
---|
654 | } |
---|
655 | |
---|
656 | /** |
---|
657 | * Returns the string representation of the role/oset. |
---|
658 | * principal.osetname(params..) |
---|
659 | * principal.rolename(params..) |
---|
660 | */ |
---|
661 | char *abac_aspect_string_with_condition(abac_aspect_t *ptr) |
---|
662 | { |
---|
663 | assert(ptr != NULL); |
---|
664 | |
---|
665 | if(abac_aspect_is_intersection(ptr)) { |
---|
666 | return abac_aspect_intersecting_string_with_condition(0,ptr); |
---|
667 | } |
---|
668 | |
---|
669 | char *tmp=NULL; |
---|
670 | char *principal_name; |
---|
671 | if(abac_aspect_is_object(ptr)) { |
---|
672 | principal_name = abac_aspect_object_name(ptr); |
---|
673 | if(_abac_aspect_object_is_time_type(ptr)) |
---|
674 | principal_name=abac_time_to_term(principal_name); |
---|
675 | } else principal_name = abac_aspect_principal_name(ptr); |
---|
676 | char *aspect_name= ptr->aspect_name; |
---|
677 | char *linked_role_name = ptr->linked_role_name; |
---|
678 | char *params_string=NULL; |
---|
679 | char *linked_params_string=NULL; |
---|
680 | |
---|
681 | int len = 0; |
---|
682 | if(principal_name) |
---|
683 | len=len+strlen(principal_name)+1; |
---|
684 | if(aspect_name) |
---|
685 | len = len+strlen(aspect_name)+1; |
---|
686 | if(linked_role_name) |
---|
687 | len = len+strlen(linked_role_name)+1; |
---|
688 | |
---|
689 | if(ptr->aspect_params) { |
---|
690 | params_string=abac_param_list_string_with_condition(ptr->aspect_params); |
---|
691 | len = len+strlen(params_string)+3; |
---|
692 | } |
---|
693 | if(ptr->linked_role_params) { |
---|
694 | linked_params_string=abac_param_list_string_with_condition(ptr->linked_role_params); |
---|
695 | len = len+strlen(linked_params_string)+3; |
---|
696 | } |
---|
697 | |
---|
698 | /* principal */ |
---|
699 | /* principal.oset/role */ |
---|
700 | /* principal.oset/role(params_string) */ |
---|
701 | /* principal.linked_role(linked_params_string).oset/role(params_string) */ |
---|
702 | tmp = abac_xmalloc(len); |
---|
703 | |
---|
704 | if(principal_name) |
---|
705 | sprintf(tmp,"%s",principal_name); |
---|
706 | |
---|
707 | if(linked_role_name) { |
---|
708 | strcat(tmp,"."); |
---|
709 | strcat(tmp,linked_role_name); |
---|
710 | } |
---|
711 | if(linked_params_string) { |
---|
712 | strcat(tmp,"("); |
---|
713 | strcat(tmp,linked_params_string); |
---|
714 | strcat(tmp,")"); |
---|
715 | } |
---|
716 | if(aspect_name) { |
---|
717 | strcat(tmp,"."); |
---|
718 | strcat(tmp,aspect_name); |
---|
719 | } |
---|
720 | if(params_string) { |
---|
721 | strcat(tmp,"("); |
---|
722 | strcat(tmp,params_string); |
---|
723 | strcat(tmp,")"); |
---|
724 | } |
---|
725 | |
---|
726 | if(linked_params_string) free(linked_params_string); |
---|
727 | if(params_string) free(params_string); |
---|
728 | return tmp; |
---|
729 | } |
---|
730 | |
---|
731 | char *abac_aspect_string(abac_aspect_t *ptr) { |
---|
732 | return abac_aspect_string_with_condition(ptr); |
---|
733 | } |
---|
734 | char *abac_aspect_typed_string(abac_aspect_t *ptr) { |
---|
735 | return abac_aspect_typed_string_with_condition(ptr); |
---|
736 | } |
---|
737 | |
---|
738 | void abac_print_aspect_string_with_condition(abac_aspect_t *ptr,FILE *fp) |
---|
739 | { |
---|
740 | char *string=abac_aspect_string_with_condition(ptr); |
---|
741 | if(fp==NULL) |
---|
742 | printf("%s ",string); |
---|
743 | else fprintf(fp,"%s ",string); |
---|
744 | } |
---|
745 | |
---|
746 | char *abac_aspect_aspect_param_string(abac_aspect_t *ptr) { |
---|
747 | assert(ptr != NULL); |
---|
748 | if(ptr->aspect_params) { |
---|
749 | return abac_param_list_string_with_condition(ptr->aspect_params); |
---|
750 | } |
---|
751 | return NULL; |
---|
752 | } |
---|
753 | |
---|
754 | char *abac_aspect_aspect_param_typed_string(abac_aspect_t *ptr) { |
---|
755 | assert(ptr != NULL); |
---|
756 | if(ptr->aspect_params) { |
---|
757 | return abac_param_list_typed_string_with_condition(ptr->aspect_params); |
---|
758 | } |
---|
759 | return NULL; |
---|
760 | } |
---|
761 | |
---|
762 | /** |
---|
763 | * Returns the typed string representation of the role/oset. |
---|
764 | */ |
---|
765 | char *abac_aspect_typed_string_with_condition(abac_aspect_t *ptr) |
---|
766 | { |
---|
767 | assert(ptr != NULL); |
---|
768 | |
---|
769 | if(abac_aspect_is_intersection(ptr)) { |
---|
770 | return abac_aspect_intersecting_string_with_condition(1,ptr); |
---|
771 | } |
---|
772 | |
---|
773 | char *tmp=NULL, *final=NULL; |
---|
774 | char *principal_name; |
---|
775 | char *principal_name_type=NULL; |
---|
776 | if(abac_aspect_is_object(ptr)) { |
---|
777 | principal_name = abac_aspect_object_name(ptr); |
---|
778 | /*special case is when it is time type */ |
---|
779 | if(_abac_aspect_object_is_time_type(ptr)) |
---|
780 | principal_name=abac_time_to_term(principal_name); |
---|
781 | principal_name_type = abac_aspect_object_type(ptr); |
---|
782 | } else { |
---|
783 | principal_name = abac_aspect_principal_name(ptr); |
---|
784 | principal_name_type=abac_aspect_principal_type(ptr); |
---|
785 | if(debug) { |
---|
786 | printf("aspect's typed_string (%s)(%s)\n", |
---|
787 | principal_name_type, principal_name); |
---|
788 | } |
---|
789 | } |
---|
790 | char *aspect_name=abac_aspect_aspect_name(ptr); |
---|
791 | char *aspect_name_type=abac_aspect_type_string(ptr); |
---|
792 | char *linked_role_name=abac_aspect_linked_role_name(ptr); |
---|
793 | char *params_string=NULL; |
---|
794 | char *linked_params_string=NULL; |
---|
795 | |
---|
796 | if(ptr->aspect_params) { |
---|
797 | params_string=abac_param_list_typed_string_with_condition(ptr->aspect_params); |
---|
798 | } |
---|
799 | if(ptr->linked_role_params) { |
---|
800 | linked_params_string=abac_param_list_typed_string_with_condition(ptr->linked_role_params); |
---|
801 | } |
---|
802 | |
---|
803 | asprintf(&final,"[%s:%s]",principal_name_type,principal_name); |
---|
804 | if(linked_role_name) { |
---|
805 | tmp=final; |
---|
806 | final=NULL; |
---|
807 | asprintf(&final,"%s.role:%s",tmp,linked_role_name); |
---|
808 | free(tmp); |
---|
809 | } |
---|
810 | if(linked_params_string) { |
---|
811 | tmp=final; |
---|
812 | final=NULL; |
---|
813 | asprintf(&final,"%s(%s)",tmp,linked_params_string); |
---|
814 | free(tmp); |
---|
815 | } |
---|
816 | if(aspect_name) { |
---|
817 | tmp=final; |
---|
818 | final=NULL; |
---|
819 | asprintf(&final,"%s.%s:%s",tmp,aspect_name_type,aspect_name); |
---|
820 | free(tmp); |
---|
821 | } |
---|
822 | if(params_string) { |
---|
823 | tmp=final; |
---|
824 | final=NULL; |
---|
825 | asprintf(&final,"%s(%s)",tmp,params_string); |
---|
826 | free(tmp); |
---|
827 | } |
---|
828 | |
---|
829 | if(linked_params_string) free(linked_params_string); |
---|
830 | if(params_string) free(params_string); |
---|
831 | return final; |
---|
832 | } |
---|
833 | |
---|
834 | /** |
---|
835 | * Build an attribute key from head and tail osets/role. Static. |
---|
836 | */ |
---|
837 | #define ROLE_SEPARATOR " <- " |
---|
838 | char *abac_aspect_attr_key(abac_aspect_t *head_ptr, abac_aspect_t *tail_ptr) { |
---|
839 | char *head = abac_aspect_string_with_condition(head_ptr); |
---|
840 | int head_len = strlen(head); |
---|
841 | |
---|
842 | char *tail = abac_aspect_string_with_condition(tail_ptr); |
---|
843 | int tail_len = strlen(tail); |
---|
844 | |
---|
845 | int sep_len = sizeof(ROLE_SEPARATOR) - 1; |
---|
846 | |
---|
847 | // "head <- tail" |
---|
848 | char *ret = abac_xmalloc(head_len + tail_len + sep_len + 1); |
---|
849 | memcpy(ret, head, head_len); |
---|
850 | memcpy(ret + head_len, ROLE_SEPARATOR, sep_len); |
---|
851 | memcpy(ret + head_len + sep_len, tail, tail_len); |
---|
852 | ret[head_len + sep_len + tail_len] = 0; |
---|
853 | |
---|
854 | return ret; |
---|
855 | } |
---|