1 | /*********************************************************** |
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2 | abac_term.c |
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3 | dterm=data term of rt1 |
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4 | term is a kind of dterm |
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5 | ***********************************************************/ |
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6 | #include <assert.h> |
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7 | #include <stdlib.h> |
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8 | #include <stdio.h> |
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9 | #include <string.h> |
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10 | #include <ctype.h> |
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11 | #include <time.h> |
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12 | |
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13 | #include "abac_util.h" |
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14 | #include "abac_aspect.h" |
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15 | #include "abac_verifier.h" |
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16 | #include "abac_id.h" |
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17 | #include "abac_list.h" |
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18 | |
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19 | static int debug=0; |
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20 | |
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21 | extern char *strptime(const char *s, const char *format, struct tm *tm); |
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22 | extern int ABAC_IN_PROLOG; |
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23 | |
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24 | /* termname[dtermtype] */ |
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25 | static const char *const _termname[] = |
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26 | { |
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27 | "badterm", |
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28 | "integer", |
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29 | "urn", |
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30 | "float", |
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31 | "boolean", |
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32 | "string", |
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33 | "time" , |
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34 | "principal", |
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35 | "anonymous", |
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36 | "this" |
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37 | }; |
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38 | static int _termname_cnt=9; |
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39 | |
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40 | typedef enum _condtype_t { |
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41 | e_COND_ROLE = 1, |
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42 | e_COND_OSET = 2, |
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43 | e_COND_RANGE = 3 |
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44 | } abac_condtype_t; |
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45 | |
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46 | /* condname[condtype] */ |
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47 | static const char *const _condname[] = |
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48 | { |
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49 | "badcondition", |
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50 | "role", |
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51 | "oset", |
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52 | "range" |
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53 | }; |
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54 | static int _condname_cnt=3; |
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55 | |
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56 | /* itemname[itemtype] */ |
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57 | static const char *const _itemname[] = |
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58 | { |
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59 | "baditem", |
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60 | "min", |
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61 | "max", |
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62 | "target" |
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63 | }; |
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64 | static int _itemname_cnt=3; |
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65 | |
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66 | /* itemtype is |
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67 | [a..b], [a..], [..b], [a],[a,b],[many a] |
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68 | */ |
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69 | struct _abac_item_t { |
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70 | int itemtype; |
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71 | char *val; |
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72 | }; |
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73 | |
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74 | /* condtype is |
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75 | e_COND_ROLE = 1, |
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76 | e_COND_OSET = 2, |
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77 | e_COND_RANGE = 3 |
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78 | vartype is one of termtype |
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79 | string will contain either |
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80 | the range literal (static constraint) |
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81 | or |
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82 | the oset/role prologized string (dynamic constraint) |
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83 | it is set if this condition has been pre-processed for codegen |
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84 | of_aspect ptr will only be set only if it is a dynamic |
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85 | constraint |
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86 | range_list is set only if needed |
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87 | */ |
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88 | struct _abac_condition_t { |
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89 | int condtype; |
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90 | int vartype; |
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91 | char *string; |
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92 | abac_list_t *range_list; |
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93 | abac_aspect_t *of_aspect; |
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94 | }; |
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95 | |
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96 | /* termtype_t/name pair for the data terms |
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97 | idtype_t/name/p_name pair for the named principal term |
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98 | */ |
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99 | struct _abac_term_t { |
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100 | int type; |
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101 | char *name; |
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102 | int isnamed; |
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103 | char *p_name; |
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104 | char *cn; //XXX ?? might not need this at all |
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105 | abac_condition_t *constraint; |
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106 | }; |
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107 | |
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108 | /* new, free, add one of terms */ |
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109 | struct _abac_param_list_t { |
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110 | abac_list_t *list; |
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111 | }; |
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112 | |
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113 | /****************************************************************/ |
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114 | char *abac_condtype_string(int i) |
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115 | { |
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116 | if(i>_condname_cnt) |
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117 | panic("abac_condtype_string: went out of range on condname"); |
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118 | return (char *) _condname[i]; |
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119 | } |
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120 | char *abac_termtype_string(int i) |
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121 | { |
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122 | if(i>_termname_cnt) |
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123 | panic("abac_termtype_string: went out of range on termname"); |
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124 | return (char *) _termname[i]; |
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125 | } |
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126 | |
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127 | int abac_verify_term_type(char *type) { |
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128 | int i; |
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129 | |
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130 | if (type == NULL) |
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131 | panic("abac_verify_term_type: fail with NULL type\n"); |
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132 | |
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133 | for (i = 1; i <= _termname_cnt ; i++) |
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134 | if(strcmp(type,_termname[i])==0) |
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135 | return i; |
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136 | |
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137 | printf("abac_verify_term_type: weird (%s)\n", type); |
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138 | panic("abac_verify_term_type: fail with unfounded type \n"); |
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139 | } |
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140 | |
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141 | int abac_max_item_type() { return e_ITEM_MAX;} |
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142 | int abac_min_item_type() { return e_ITEM_MIN;} |
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143 | int abac_target_item_type() { return e_ITEM_TARGET;} |
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144 | |
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145 | int abac_verify_item_type(char *type) { |
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146 | int i; |
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147 | |
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148 | if (type == NULL) |
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149 | panic("abac_verify_item_type: fail with NULL type\n"); |
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150 | |
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151 | for (i = 1; i <= _itemname_cnt ; i++) |
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152 | if(strcmp(type,_itemname[i])==0) |
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153 | return i; |
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154 | panic("abac_verify_item_type: fail with unfounded type\n"); |
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155 | } |
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156 | |
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157 | char *abac_range_string(abac_list_t *ptr) |
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158 | { |
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159 | assert(ptr); |
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160 | char *tmp=NULL; |
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161 | char *min=NULL; |
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162 | char *max=NULL; |
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163 | char *val=NULL; |
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164 | int type; |
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165 | |
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166 | abac_item_t *cur; |
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167 | assert(ptr); |
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168 | abac_list_foreach(ptr, cur, |
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169 | type=cur->itemtype; |
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170 | switch (type) { |
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171 | case e_ITEM_MIN: |
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172 | min=abac_xstrdup(cur->val); |
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173 | break; |
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174 | case e_ITEM_MAX: |
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175 | max=abac_xstrdup(cur->val); |
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176 | break; |
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177 | case e_ITEM_TARGET: |
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178 | if(val) |
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179 | asprintf(&val,"%s,%s",cur->val,val); |
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180 | else val=abac_xstrdup(cur->val); |
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181 | break; |
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182 | } |
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183 | ); |
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184 | if(max && min) { |
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185 | asprintf(&tmp,"[%s..%s]",min,max); |
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186 | free(max); |
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187 | free(min); |
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188 | return tmp; |
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189 | } |
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190 | if(max) { |
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191 | asprintf(&tmp,"[..%s]",max); |
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192 | free(max); |
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193 | return tmp; |
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194 | } |
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195 | if(min) { |
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196 | asprintf(&tmp,"[%s..]",min); |
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197 | free(min); |
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198 | return tmp; |
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199 | } |
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200 | if(val) { |
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201 | asprintf(&tmp,"[%s]",val); |
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202 | free(val); |
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203 | return tmp; |
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204 | } |
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205 | return NULL; |
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206 | } |
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207 | /******************************************************************/ |
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208 | abac_item_t *abac_item_new(int itype, char *val) |
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209 | { |
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210 | abac_item_t *nptr= |
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211 | (abac_item_t *)abac_xmalloc(sizeof(abac_item_t)); |
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212 | nptr->itemtype=itype; |
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213 | nptr->val=abac_xstrdup(val); |
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214 | return nptr; |
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215 | } |
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216 | |
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217 | void abac_item_free(abac_item_t *ptr) |
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218 | { |
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219 | assert(ptr); |
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220 | assert(ptr->val); |
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221 | free(ptr->val); |
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222 | free(ptr); |
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223 | } |
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224 | |
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225 | abac_item_t *abac_item_dup(abac_item_t *ptr) |
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226 | { |
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227 | abac_item_t *nptr= |
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228 | (abac_item_t *)abac_xmalloc(sizeof(abac_item_t)); |
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229 | nptr->itemtype=ptr->itemtype; |
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230 | nptr->val=abac_xstrdup(ptr->val); |
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231 | return nptr; |
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232 | } |
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233 | |
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234 | /* deep copy/same as dup */ |
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235 | abac_item_t *abac_item_copy(abac_item_t *ptr) |
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236 | { |
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237 | abac_item_t *nptr= |
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238 | (abac_item_t *)abac_xmalloc(sizeof(abac_item_t)); |
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239 | nptr->itemtype=ptr->itemtype; |
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240 | nptr->val=abac_xstrdup(ptr->val); |
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241 | return nptr; |
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242 | } |
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243 | |
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244 | int abac_item_type(abac_item_t *ptr) |
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245 | { |
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246 | return ptr->itemtype; |
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247 | } |
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248 | |
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249 | char *abac_item_val(abac_item_t *ptr) |
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250 | { |
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251 | return ptr->val; |
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252 | } |
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253 | |
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254 | /******************************************************************/ |
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255 | static abac_condition_t *_abac_condition_new(int type, int vtype, |
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256 | char* condstr,void *cptr) |
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257 | { |
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258 | if(debug) { |
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259 | fprintf(stderr," abac_condition_new: \n"); |
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260 | fprintf(stderr," condtype is %d(%s)\n", type, abac_condtype_string(type)); |
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261 | fprintf(stderr," vtype is %d(%s)\n", vtype, abac_termtype_string(type)); |
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262 | fprintf(stderr," condstr is (%s)\n", condstr); |
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263 | if(cptr) fprintf(stderr," yes on cptr\n"); |
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264 | else fprintf(stderr," no on cptr\n"); |
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265 | } |
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266 | abac_condition_t *ptr= |
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267 | (abac_condition_t *)abac_xmalloc(sizeof(abac_condition_t)); |
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268 | ptr->condtype=type; |
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269 | ptr->vartype=vtype; |
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270 | ptr->string=abac_xstrdup(condstr); |
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271 | ptr->of_aspect=NULL; |
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272 | ptr->range_list=NULL; |
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273 | if(type==e_COND_RANGE) { |
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274 | ptr->range_list=(abac_list_t *)cptr; |
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275 | } else { |
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276 | if(cptr) ptr->of_aspect=abac_aspect_dup((abac_aspect_t *)cptr); |
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277 | } |
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278 | return ptr; |
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279 | } |
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280 | |
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281 | void abac_condition_free(abac_condition_t *ptr) |
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282 | { |
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283 | switch(ptr->condtype) { |
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284 | case e_COND_OSET: |
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285 | case e_COND_ROLE: |
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286 | abac_aspect_free(ptr->of_aspect); |
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287 | break; |
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288 | case e_COND_RANGE: |
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289 | /* do nothing */ |
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290 | break; |
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291 | } |
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292 | if(ptr->string) free(ptr->string); |
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293 | if(ptr->range_list != NULL) { |
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294 | abac_item_t *cur; |
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295 | abac_list_foreach(ptr->range_list, cur, |
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296 | abac_item_free(cur); |
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297 | ); |
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298 | abac_list_free(ptr->range_list); |
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299 | } |
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300 | free(ptr); |
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301 | } |
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302 | |
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303 | abac_aspect_t *abac_condition_of_aspect(abac_condition_t *ptr) |
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304 | { |
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305 | return ptr->of_aspect; |
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306 | } |
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307 | |
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308 | int abac_condition_is_range(abac_condition_t *ptr) |
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309 | { |
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310 | if(ptr->condtype==e_COND_RANGE) |
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311 | return 1; |
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312 | else return 0; |
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313 | } |
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314 | |
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315 | /* called from backend, intended as stub for range constraint */ |
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316 | abac_condition_t *abac_condition_create(char *vtype) |
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317 | { |
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318 | abac_condition_t *nptr= |
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319 | (abac_condition_t *)abac_xmalloc(sizeof(abac_condition_t)); |
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320 | nptr->condtype=e_COND_RANGE; |
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321 | nptr->vartype=abac_verify_term_type(vtype); |
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322 | nptr->string=NULL; |
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323 | nptr->range_list=NULL; |
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324 | nptr->of_aspect=NULL; |
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325 | return nptr; |
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326 | } |
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327 | |
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328 | abac_condition_t *abac_condition_create_from_aspect(abac_aspect_t *ptr) |
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329 | { |
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330 | assert(ptr); |
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331 | abac_condition_t *nptr= |
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332 | (abac_condition_t *)abac_xmalloc(sizeof(abac_condition_t)); |
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333 | if(abac_aspect_is_role(ptr)) |
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334 | nptr->condtype=e_COND_ROLE; |
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335 | else nptr->condtype=e_COND_OSET; |
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336 | nptr->vartype=e_TERM_PRINCIPAL; |
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337 | nptr->string=NULL; |
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338 | nptr->range_list=NULL; |
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339 | nptr->of_aspect=abac_aspect_dup(ptr); |
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340 | return nptr; |
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341 | } |
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342 | |
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343 | /* make a shallow copy */ |
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344 | abac_condition_t *abac_condition_dup(abac_condition_t *ptr) |
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345 | { |
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346 | abac_condition_t *nptr= |
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347 | (abac_condition_t *)abac_xmalloc(sizeof(abac_condition_t)); |
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348 | nptr->condtype=ptr->condtype; |
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349 | nptr->vartype=ptr->vartype; |
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350 | if(ptr->string) |
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351 | nptr->string=abac_xstrdup(ptr->string); |
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352 | else nptr->string=NULL; |
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353 | if(ptr->of_aspect) |
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354 | nptr->of_aspect=abac_aspect_dup(ptr->of_aspect); |
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355 | else nptr->of_aspect=NULL; |
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356 | |
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357 | if(ptr->range_list!=NULL) { |
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358 | nptr->range_list=abac_list_new(); |
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359 | abac_item_t *cur; |
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360 | abac_item_t *nitem; |
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361 | abac_list_foreach(ptr->range_list, cur, |
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362 | nitem=abac_item_dup(cur); |
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363 | abac_list_add(nptr->range_list,nitem); |
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364 | ); |
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365 | } else { |
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366 | nptr->range_list=NULL; |
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367 | } |
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368 | return nptr; |
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369 | } |
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370 | |
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371 | /* make a deep copy */ |
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372 | abac_condition_t *abac_condition_copy(abac_condition_t *ptr) |
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373 | { |
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374 | abac_condition_t *nptr= |
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375 | (abac_condition_t *)abac_xmalloc(sizeof(abac_condition_t)); |
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376 | nptr->condtype=ptr->condtype; |
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377 | nptr->vartype=ptr->vartype; |
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378 | if(ptr->string) { |
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379 | nptr->string=abac_xstrdup(ptr->string); |
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380 | } else { |
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381 | nptr->string=NULL; |
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382 | } |
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383 | if(ptr->of_aspect) |
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384 | nptr->of_aspect=abac_aspect_copy(ptr->of_aspect); |
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385 | else nptr->of_aspect=NULL; |
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386 | |
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387 | if(ptr->range_list!=NULL) { |
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388 | nptr->range_list=abac_list_new(); |
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389 | abac_item_t *cur; |
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390 | abac_item_t *nitem; |
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391 | abac_list_foreach(ptr->range_list, cur, |
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392 | nitem=abac_item_copy(cur); |
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393 | abac_list_add(nptr->range_list,nitem); |
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394 | ); |
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395 | } else { |
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396 | nptr->range_list=NULL; |
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397 | } |
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398 | return nptr; |
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399 | } |
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400 | |
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401 | int abac_condition_vartype(abac_condition_t *ptr) |
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402 | { |
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403 | return ptr->vartype; |
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404 | } |
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405 | |
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406 | abac_list_t *abac_condition_range_list(abac_condition_t *ptr) |
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407 | { |
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408 | assert(ptr); |
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409 | return ptr->range_list; |
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410 | } |
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411 | |
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412 | |
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413 | /***********************************************************************/ |
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414 | static void _abac_condition_add_range_item(abac_condition_t *ptr, int itype, char* val) |
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415 | { |
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416 | abac_item_t *nitem=abac_item_new(itype,val); |
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417 | if(ptr->range_list==NULL) |
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418 | ptr->range_list=abac_list_new(); |
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419 | abac_list_add(ptr->range_list,nitem); |
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420 | } |
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421 | |
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422 | void abac_condition_add_range_integer_item(abac_condition_t *ptr, int itype, int val) |
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423 | { |
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424 | if(abac_condition_vartype(ptr) != abac_verify_term_type("integer")) |
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425 | panic("abac_condition_add_range_integer_item, mismatched contraint type to abac integer term\n"); |
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426 | char *tmp=NULL; |
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427 | asprintf(&tmp,"%d",val); |
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428 | _abac_condition_add_range_item(ptr,itype,tmp); |
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429 | } |
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430 | void abac_condition_add_range_float_item(abac_condition_t *ptr, int itype, float val) |
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431 | { |
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432 | if(abac_condition_vartype(ptr) != abac_verify_term_type("float")) |
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433 | panic("abac_condition_add_range_float_item, mismatched contraint type to abac float term\n"); |
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434 | char *tmp=NULL; |
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435 | asprintf(&tmp,"%f",val); |
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436 | _abac_condition_add_range_item(ptr,itype,tmp); |
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437 | } |
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438 | |
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439 | void abac_condition_add_range_time_item(abac_condition_t *ptr, int itype, char* val) |
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440 | { |
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441 | if(abac_condition_vartype(ptr) != abac_verify_term_type("time")) |
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442 | panic("abac_condition_add_range_time_item, mismatched contraint type to abac time term\n"); |
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443 | _abac_condition_add_range_item(ptr,itype,val); |
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444 | } |
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445 | |
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446 | void abac_condition_add_range_urn_item(abac_condition_t *ptr, char *val) |
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447 | { |
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448 | if(abac_condition_vartype(ptr) != abac_verify_term_type("urn")) |
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449 | panic("abac_condition_add_range_urn_item, mismatched contraint type to abac urn term\n"); |
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450 | _abac_condition_add_range_item(ptr,e_ITEM_TARGET,val); |
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451 | } |
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452 | |
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453 | void abac_condition_add_range_string_item(abac_condition_t *ptr, char *val) |
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454 | { |
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455 | if(abac_condition_vartype(ptr) != abac_verify_term_type("string")) |
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456 | panic("abac_condition_add_range_string_item, mismatched contraint type to abac string term\n"); |
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457 | _abac_condition_add_range_item(ptr,e_ITEM_TARGET,val); |
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458 | } |
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459 | |
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460 | void abac_condition_add_range_boolean_item(abac_condition_t *ptr, char* val) |
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461 | { |
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462 | if(abac_condition_vartype(ptr) != abac_verify_term_type("boolean")) |
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463 | panic("abac_condition_add_range_boolean_item, mismatched contraint type to abac boolen term\n"); |
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464 | if(strcmp(val,"true")==0 || strcmp(val,"false")==0) { |
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465 | _abac_condition_add_range_item(ptr,e_ITEM_TARGET,val); |
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466 | } else { |
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467 | panic("abac_condition_add_range_boolean_item, invalid matching value\n"); |
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468 | } |
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469 | } |
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470 | |
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471 | |
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472 | char *abac_condition_string(abac_condition_t *ptr) |
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473 | { |
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474 | char *string=NULL; |
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475 | switch(ptr->condtype) { |
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476 | case e_COND_OSET: |
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477 | case e_COND_ROLE: |
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478 | string=abac_aspect_string_with_condition(ptr->of_aspect); |
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479 | return string; |
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480 | break; |
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481 | case e_COND_RANGE: |
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482 | if(ptr->string != NULL) { |
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483 | string=abac_xstrdup(ptr->string); |
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484 | return string; |
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485 | } |
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486 | if(ptr->range_list != NULL) { |
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487 | string=abac_range_string(ptr->range_list); |
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488 | return string; |
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489 | } |
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490 | break; |
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491 | } |
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492 | return string; |
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493 | } |
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494 | |
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495 | char *abac_condition_typed_string(abac_condition_t *ptr) |
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496 | { |
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497 | char *string=NULL; |
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498 | switch(ptr->condtype) { |
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499 | case e_COND_OSET: |
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500 | case e_COND_ROLE: |
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501 | string=abac_aspect_typed_string_with_condition(ptr->of_aspect); |
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502 | return string; |
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503 | break; |
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504 | case e_COND_RANGE: |
---|
505 | if(ptr->string != NULL) { |
---|
506 | string=abac_xstrdup(ptr->string); |
---|
507 | return string; |
---|
508 | } |
---|
509 | if(ptr->range_list != NULL) { |
---|
510 | string=abac_range_string(ptr->range_list); |
---|
511 | return string; |
---|
512 | } |
---|
513 | break; |
---|
514 | } |
---|
515 | return string; |
---|
516 | } |
---|
517 | |
---|
518 | int abac_condition_set_range_string(abac_condition_t *ptr) |
---|
519 | { |
---|
520 | char *string= abac_range_string(ptr->range_list); |
---|
521 | ptr->string=string; |
---|
522 | return 1; |
---|
523 | } |
---|
524 | |
---|
525 | int abac_condition_set_aspect_string(abac_condition_t *ptr, char *str) |
---|
526 | { |
---|
527 | ptr->string=abac_xstrdup(str); |
---|
528 | return 1; |
---|
529 | } |
---|
530 | |
---|
531 | int abac_condition_set_aspect_ptr(abac_condition_t *ptr, abac_aspect_t *aptr) |
---|
532 | { |
---|
533 | ptr->of_aspect=abac_aspect_dup(aptr); |
---|
534 | return 1; |
---|
535 | } |
---|
536 | |
---|
537 | /******************************************************************/ |
---|
538 | int abac_term_isvar(abac_term_t *term) |
---|
539 | { |
---|
540 | if(isupper(term->name[0])) return 1; |
---|
541 | else return 0; |
---|
542 | } |
---|
543 | |
---|
544 | int abac_term_isnamed(abac_term_t *term) |
---|
545 | { |
---|
546 | if(term->isnamed) return 1; |
---|
547 | else return 0; |
---|
548 | } |
---|
549 | |
---|
550 | char *abac_term_name(abac_term_t *term) |
---|
551 | { |
---|
552 | if(ABAC_IN_PROLOG && term->p_name) { |
---|
553 | return term->p_name; |
---|
554 | } |
---|
555 | return term->name; |
---|
556 | } |
---|
557 | |
---|
558 | char *abac_term_cn(abac_term_t *term) |
---|
559 | { |
---|
560 | return term->cn; |
---|
561 | } |
---|
562 | |
---|
563 | abac_condition_t *abac_term_constraint(abac_term_t *term) |
---|
564 | { |
---|
565 | return term->constraint; |
---|
566 | } |
---|
567 | |
---|
568 | char *abac_term_type_name(abac_term_t *term) |
---|
569 | { |
---|
570 | if(term->isnamed) |
---|
571 | return abac_idtype_string(term->type); |
---|
572 | return abac_termtype_string(term->type); |
---|
573 | } |
---|
574 | |
---|
575 | int abac_term_type(abac_term_t *term) |
---|
576 | { |
---|
577 | return term->type; |
---|
578 | } |
---|
579 | |
---|
580 | int abac_term_is_anonymous(abac_term_t *ptr) |
---|
581 | { |
---|
582 | if(ptr->type == e_TERM_ANONYMOUS) |
---|
583 | return 1; |
---|
584 | return 0; |
---|
585 | } |
---|
586 | int abac_term_is_this(abac_term_t *ptr) |
---|
587 | { |
---|
588 | if(ptr->type == e_TERM_THIS) |
---|
589 | return 1; |
---|
590 | return 0; |
---|
591 | } |
---|
592 | static int _abac_termtype_is_time_type(int i) |
---|
593 | { |
---|
594 | if (i == e_TERM_TIME) |
---|
595 | return 1; |
---|
596 | return 0; |
---|
597 | } |
---|
598 | |
---|
599 | int abac_term_is_time_type(abac_term_t *term) |
---|
600 | { |
---|
601 | return _abac_termtype_is_time_type(term->type); |
---|
602 | } |
---|
603 | |
---|
604 | static int _abac_termtype_is_string_type(int i) |
---|
605 | { |
---|
606 | if (i == e_TERM_STRING) |
---|
607 | return 1; |
---|
608 | return 0; |
---|
609 | } |
---|
610 | |
---|
611 | int abac_term_is_string(abac_term_t *term) |
---|
612 | { |
---|
613 | return _abac_termtype_is_string_type(term->type); |
---|
614 | } |
---|
615 | |
---|
616 | static int _abac_termtype_is_integer_type(int i) |
---|
617 | { |
---|
618 | if (i == e_TERM_INTEGER) |
---|
619 | return 1; |
---|
620 | return 0; |
---|
621 | } |
---|
622 | |
---|
623 | int abac_term_is_integer(abac_term_t *term) |
---|
624 | { |
---|
625 | return _abac_termtype_is_integer_type(term->type); |
---|
626 | } |
---|
627 | |
---|
628 | static int _abac_termtype_is_urn_type(int i) |
---|
629 | { |
---|
630 | if (i == e_TERM_URN) |
---|
631 | return 1; |
---|
632 | return 0; |
---|
633 | } |
---|
634 | |
---|
635 | int abac_term_is_urn(abac_term_t *term) |
---|
636 | { |
---|
637 | return _abac_termtype_is_urn_type(term->type); |
---|
638 | } |
---|
639 | |
---|
640 | int abac_term_is_alpha(abac_term_t *term) |
---|
641 | { |
---|
642 | if(term->type == e_TERM_URN || |
---|
643 | term->type == e_TERM_STRING || |
---|
644 | term->type == e_TERM_BOOLEAN) |
---|
645 | return 1; |
---|
646 | return 0; |
---|
647 | } |
---|
648 | |
---|
649 | int abac_term_is_numeric(abac_term_t *term) |
---|
650 | { |
---|
651 | if(term->type == e_TERM_INTEGER || |
---|
652 | term->type == e_TERM_FLOAT) |
---|
653 | return 1; |
---|
654 | return 0; |
---|
655 | } |
---|
656 | |
---|
657 | int abac_term_is_time(abac_term_t *term) |
---|
658 | { |
---|
659 | if(term->type == e_TERM_TIME) |
---|
660 | return 1; |
---|
661 | return 0; |
---|
662 | } |
---|
663 | |
---|
664 | /* need to preset tm1 structure with init_string to nullify |
---|
665 | field that might not get set the supplied time string */ |
---|
666 | char *abac_term_to_time(char *string) |
---|
667 | { |
---|
668 | struct tm tm1; |
---|
669 | char buf[255]; |
---|
670 | char *init_string="19991212T000000"; |
---|
671 | |
---|
672 | strptime(init_string, "%Y%m%dT%H%M%S", &tm1); |
---|
673 | strptime(string, "%Y%m%dT%H%M%S", &tm1); |
---|
674 | strftime(buf, sizeof(buf), "time(%Y,%m,%d,%H,%M,%S)", &tm1); |
---|
675 | return abac_xstrdup(buf); |
---|
676 | } |
---|
677 | |
---|
678 | char *abac_time_to_term(char *string) |
---|
679 | { |
---|
680 | char buf[255]; |
---|
681 | struct tm tm1; |
---|
682 | |
---|
683 | char* rt=strptime(string, "time(%Y,%m,%d,%H,%M,%S)", &tm1); |
---|
684 | if(rt==NULL) |
---|
685 | return abac_xstrdup(string); |
---|
686 | strftime(buf, sizeof(buf), "%Y%m%dT%H%M%S", &tm1); |
---|
687 | return strdup(buf); |
---|
688 | } |
---|
689 | |
---|
690 | static abac_term_t *_abac_term_init() |
---|
691 | { |
---|
692 | abac_term_t *ptr=abac_xmalloc(sizeof(abac_term_t)); |
---|
693 | ptr->type; |
---|
694 | ptr->name=NULL; |
---|
695 | ptr->isnamed=0; |
---|
696 | ptr->p_name=NULL; |
---|
697 | ptr->cn=NULL; |
---|
698 | ptr->constraint=NULL; |
---|
699 | } |
---|
700 | |
---|
701 | /* called from yy, cptr is either abac_aspect_t or abac_list_t */ |
---|
702 | abac_term_t *abac_term_new(int type, char *name, int isrange, char *cond, void *cptr) |
---|
703 | { |
---|
704 | if(debug) { |
---|
705 | fprintf(stderr,"abac_term_new: \n"); |
---|
706 | fprintf(stderr," type is %d(%s)\n", type, abac_termtype_string(type)); |
---|
707 | fprintf(stderr," name is (%s)\n", name); |
---|
708 | if(cond) |
---|
709 | fprintf(stderr," cond is %s\n", cond); |
---|
710 | else fprintf(stderr," no cond \n"); |
---|
711 | fprintf(stderr," isrange is %d\n", isrange); |
---|
712 | if(cptr) { |
---|
713 | if(isrange) fprintf(stderr," cptr is (%s)\n", |
---|
714 | abac_range_string((abac_list_t *)cptr)); |
---|
715 | else |
---|
716 | fprintf(stderr," cptr is (%s)\n", |
---|
717 | abac_aspect_string_with_condition((abac_aspect_t *)cptr)); |
---|
718 | } else fprintf(stderr," there is no cptr\n"); |
---|
719 | } |
---|
720 | abac_condition_t *constraint=NULL; |
---|
721 | if (cptr) { |
---|
722 | if(isrange) { |
---|
723 | constraint=_abac_condition_new(e_COND_RANGE,type,cond,cptr); |
---|
724 | } else { |
---|
725 | if(type==e_TERM_PRINCIPAL) |
---|
726 | constraint=_abac_condition_new(e_COND_ROLE,type,cond,cptr); |
---|
727 | else |
---|
728 | constraint=_abac_condition_new(e_COND_OSET,type,cond,cptr); |
---|
729 | } |
---|
730 | } |
---|
731 | abac_term_t *ptr=_abac_term_init(); |
---|
732 | ptr->isnamed=0; |
---|
733 | ptr->type=type; |
---|
734 | /* reformat the term name if it is a time type */ |
---|
735 | if((!constraint) && _abac_termtype_is_time_type(type) && isdigit(name[0])) { |
---|
736 | char *tmp=abac_term_to_time(name); |
---|
737 | ptr->name=tmp; |
---|
738 | } else { |
---|
739 | ptr->name=abac_xstrdup(name); |
---|
740 | } |
---|
741 | ptr->constraint=constraint; |
---|
742 | return ptr; |
---|
743 | } |
---|
744 | |
---|
745 | abac_term_t *abac_term_create(char *typename, char *name, abac_condition_t *cptr) |
---|
746 | { |
---|
747 | int type=abac_verify_term_type(typename); |
---|
748 | if(debug) { |
---|
749 | fprintf(stderr,"abac_term_create: \n"); |
---|
750 | fprintf(stderr," type is %d(%s)\n", type, abac_termtype_string(type)); |
---|
751 | fprintf(stderr," name is (%s)\n", name); |
---|
752 | if(cptr) |
---|
753 | fprintf(stderr," cptr is (%s)\n", abac_condition_typed_string(cptr)); |
---|
754 | else fprintf(stderr," there is no cptr\n"); |
---|
755 | } |
---|
756 | |
---|
757 | abac_term_t *ptr=_abac_term_init(); |
---|
758 | ptr->isnamed=0; |
---|
759 | ptr->type=type; |
---|
760 | /* reformat the term name if it is a time type */ |
---|
761 | if((!cptr) && _abac_termtype_is_time_type(type) && isdigit(name[0])) { |
---|
762 | char *tmp=abac_term_to_time(name); |
---|
763 | ptr->name=tmp; |
---|
764 | } else { |
---|
765 | ptr->name=abac_xstrdup(name); |
---|
766 | } |
---|
767 | if(cptr) |
---|
768 | ptr->constraint=abac_condition_dup(cptr); |
---|
769 | return ptr; |
---|
770 | } |
---|
771 | |
---|
772 | /* called from yy, named principal type */ |
---|
773 | abac_term_t *abac_term_named_new(int idtype, char *name) |
---|
774 | { |
---|
775 | DEBUG_PRINTF("abac_term_named_new: \n type is %d(%s)\n", |
---|
776 | idtype, abac_idtype_string(idtype)); |
---|
777 | DEBUG_PRINTF(" name is (%s)\n", name); |
---|
778 | abac_term_t *ptr=_abac_term_init(); |
---|
779 | ptr->isnamed=1; |
---|
780 | ptr->type=idtype; |
---|
781 | ptr->name=abac_xstrdup(name); |
---|
782 | /* if ABAC_CN, no need to attach p */ |
---|
783 | if(!USE("ABAC_CN")) |
---|
784 | asprintf(&ptr->p_name,"p%s",name); |
---|
785 | return ptr; |
---|
786 | } |
---|
787 | |
---|
788 | abac_term_t *abac_term_this_create() |
---|
789 | { |
---|
790 | DEBUG_PRINTF("abac_term_this_create:\n"); |
---|
791 | abac_term_t *ptr=_abac_term_init(); |
---|
792 | ptr->type=e_TERM_THIS; |
---|
793 | ptr->name=abac_xstrdup("This"); |
---|
794 | return ptr; |
---|
795 | } |
---|
796 | |
---|
797 | |
---|
798 | /* seems to be always idtype==e_TERM_PRINCIPAL except for ?This*/ |
---|
799 | abac_term_t *abac_term_named_create(char *name) |
---|
800 | { |
---|
801 | DEBUG_PRINTF("abac_term_named_create: name is (%s)\n",name); |
---|
802 | abac_term_t *ptr=_abac_term_init(); |
---|
803 | /* special case when it is a ?this */ |
---|
804 | if(strcasecmp(name,"this")==0) { |
---|
805 | ptr->type=e_TERM_THIS; |
---|
806 | ptr->name=abac_xstrdup("This"); |
---|
807 | return ptr; |
---|
808 | } |
---|
809 | if(strcasecmp(name,"anonymous")==0) { |
---|
810 | ptr->type=e_TERM_ANONYMOUS; |
---|
811 | ptr->name=abac_xstrdup("_"); |
---|
812 | return ptr; |
---|
813 | } |
---|
814 | ptr->isnamed=1; |
---|
815 | ptr->type=e_TERM_PRINCIPAL; |
---|
816 | ptr->name=abac_xstrdup(name); |
---|
817 | /* if ABAC_CN, no need to attach p */ |
---|
818 | if(!USE("ABAC_CN")) |
---|
819 | asprintf(&ptr->p_name,"p%s",name); |
---|
820 | return ptr; |
---|
821 | } |
---|
822 | |
---|
823 | /* seems to be always idtype==keyid type */ |
---|
824 | abac_term_t *abac_term_id_create(abac_id_t *idptr) |
---|
825 | { |
---|
826 | DEBUG_PRINTF("abac_term_named_id_create: name is (%s)\n", abac_id_name(idptr)); |
---|
827 | abac_term_t *ptr=_abac_term_init(); |
---|
828 | ptr->isnamed=1; |
---|
829 | ptr->type=abac_id_idtype(idptr); |
---|
830 | ptr->name=abac_xstrdup(abac_id_name(idptr)); |
---|
831 | /* if ABAC_CN, no need to attach p */ |
---|
832 | if(!USE("ABAC_CN")) |
---|
833 | asprintf(&ptr->p_name,"p%s",ptr->name); |
---|
834 | return ptr; |
---|
835 | } |
---|
836 | |
---|
837 | |
---|
838 | abac_term_t *abac_term_dup(abac_term_t *ptr) |
---|
839 | { |
---|
840 | assert(ptr); |
---|
841 | abac_term_t *nptr=_abac_term_init(); |
---|
842 | nptr->isnamed=ptr->isnamed; |
---|
843 | nptr->type=ptr->type; |
---|
844 | nptr->name=abac_xstrdup(ptr->name); |
---|
845 | if(ptr->p_name) |
---|
846 | nptr->p_name=abac_xstrdup(ptr->p_name); |
---|
847 | if(ptr->constraint!=NULL) |
---|
848 | nptr->constraint=abac_condition_dup(ptr->constraint); |
---|
849 | if(ptr->cn) |
---|
850 | nptr->cn=abac_xstrdup(ptr->cn); |
---|
851 | return nptr; |
---|
852 | } |
---|
853 | |
---|
854 | /* a deep copy */ |
---|
855 | abac_term_t *abac_term_copy(abac_term_t *ptr) |
---|
856 | { |
---|
857 | if(ptr == NULL) return NULL; |
---|
858 | abac_term_t *nptr=_abac_term_init(); |
---|
859 | nptr->isnamed=ptr->isnamed; |
---|
860 | nptr->type=ptr->type; |
---|
861 | if(ptr->name) |
---|
862 | nptr->name=abac_xstrdup(ptr->name); |
---|
863 | if(ptr->p_name) |
---|
864 | nptr->p_name=abac_xstrdup(ptr->p_name); |
---|
865 | if(ptr->constraint!=NULL) |
---|
866 | nptr->constraint=abac_condition_copy(ptr->constraint); |
---|
867 | if(ptr->cn) |
---|
868 | nptr->cn=abac_xstrdup(ptr->cn); |
---|
869 | return nptr; |
---|
870 | } |
---|
871 | |
---|
872 | void abac_term_free(abac_term_t *ptr) |
---|
873 | { |
---|
874 | if(ptr->constraint) { |
---|
875 | abac_condition_free(ptr->constraint); |
---|
876 | } |
---|
877 | free(ptr->name); |
---|
878 | if(ptr->p_name) free(ptr->p_name); |
---|
879 | if(ptr->cn) free(ptr->cn); |
---|
880 | free(ptr); |
---|
881 | } |
---|
882 | |
---|
883 | abac_term_t *abac_term_add_constraint(abac_term_t *ptr, abac_condition_t *cond) |
---|
884 | { |
---|
885 | /* make sure the types are matching */ |
---|
886 | if(abac_condition_vartype(cond) != abac_term_type(ptr)) { |
---|
887 | panic("abac_term_add_constraint: mismatched constraint type with the dataterm\n"); |
---|
888 | return NULL; |
---|
889 | } |
---|
890 | |
---|
891 | if(ptr->constraint) { |
---|
892 | abac_condition_free(ptr->constraint); |
---|
893 | } |
---|
894 | ptr->constraint = abac_condition_dup(cond); |
---|
895 | return ptr; |
---|
896 | } |
---|
897 | |
---|
898 | /* name or name:cond */ |
---|
899 | static char *abac_term_string_with_condition(abac_term_t *ptr) |
---|
900 | { |
---|
901 | char *tmp=NULL; |
---|
902 | char *cond=NULL; |
---|
903 | char *name=abac_term_name(ptr); |
---|
904 | if(ptr->constraint) { |
---|
905 | cond=abac_condition_string(ptr->constraint); |
---|
906 | } |
---|
907 | int free_name=0; |
---|
908 | if(abac_term_is_time_type(ptr) && !ABAC_IN_PROLOG ) { |
---|
909 | name=abac_time_to_term(name); |
---|
910 | free_name=1; |
---|
911 | } |
---|
912 | if(cond) { |
---|
913 | asprintf(&tmp,"%s:%s", name, cond); |
---|
914 | free(cond); |
---|
915 | } else tmp=abac_xstrdup(name); |
---|
916 | if(free_name) free(name); |
---|
917 | return tmp; |
---|
918 | } |
---|
919 | |
---|
920 | /* [type:name] or [typed:name:cond] */ |
---|
921 | static char *abac_term_typed_string_with_condition(abac_term_t *ptr) |
---|
922 | { |
---|
923 | char *tmp=NULL; |
---|
924 | char *cond=NULL; |
---|
925 | int free_name=0; |
---|
926 | char *name=abac_term_name(ptr); |
---|
927 | char *type=abac_term_type_name(ptr); |
---|
928 | if(ptr->constraint) { |
---|
929 | cond=abac_condition_typed_string(ptr->constraint); |
---|
930 | } |
---|
931 | /* special case if term is actually a time term... */ |
---|
932 | if(abac_term_is_time_type(ptr) && !ABAC_IN_PROLOG ) { |
---|
933 | name=abac_time_to_term(name); /* this should be freed */ |
---|
934 | DEBUG_PRINTF("abac_term_typed_string_with_condition: trying to turn the time back\n"); |
---|
935 | free_name=1; |
---|
936 | } |
---|
937 | if(cond) { |
---|
938 | if(abac_condition_is_range(ptr->constraint)) |
---|
939 | asprintf(&tmp,"[%s:?%s:%s]", type, name, cond); |
---|
940 | else asprintf(&tmp,"[%s:?%s%s]", type, name, cond); |
---|
941 | free(cond); |
---|
942 | } else { |
---|
943 | if(abac_term_is_anonymous(ptr)) { |
---|
944 | asprintf(&tmp,"[?]"); |
---|
945 | } else { |
---|
946 | if(abac_term_is_this(ptr)) { |
---|
947 | asprintf(&tmp,"[?This]"); |
---|
948 | } else { |
---|
949 | if(isupper(name[0])) |
---|
950 | asprintf(&tmp,"[%s:?%s]", type, name); |
---|
951 | else asprintf(&tmp,"[%s:%s]", type, name); |
---|
952 | } |
---|
953 | } |
---|
954 | } |
---|
955 | DEBUG_PRINTF("abac_term_typed_string_with_condition: (%s)\n",tmp); |
---|
956 | if(free_name) free(name); |
---|
957 | return tmp; |
---|
958 | } |
---|
959 | |
---|
960 | char *abac_term_string(abac_term_t *ptr) |
---|
961 | { |
---|
962 | return abac_xstrdup(abac_term_name(ptr)); |
---|
963 | } |
---|
964 | |
---|
965 | char *abac_term_typed_string(abac_term_t *ptr) |
---|
966 | { |
---|
967 | return abac_term_typed_string_with_condition(ptr); |
---|
968 | } |
---|
969 | |
---|
970 | /********************************************************************/ |
---|
971 | int abac_param_list_cnt(abac_param_list_t *ptr) |
---|
972 | { |
---|
973 | assert(ptr); |
---|
974 | int cnt=abac_list_size(ptr->list); |
---|
975 | return cnt; |
---|
976 | } |
---|
977 | |
---|
978 | abac_list_t *abac_param_list(abac_param_list_t *ptr) |
---|
979 | { |
---|
980 | assert(ptr); |
---|
981 | return ptr->list; |
---|
982 | } |
---|
983 | |
---|
984 | abac_param_list_t *abac_param_list_copy(abac_param_list_t *ptr) |
---|
985 | { |
---|
986 | if(ptr == NULL) return NULL; |
---|
987 | abac_param_list_t *nptr=abac_xmalloc(sizeof(abac_param_list_t)); |
---|
988 | nptr->list=abac_list_new(); |
---|
989 | abac_term_t *cur; |
---|
990 | abac_term_t *ncur; |
---|
991 | abac_list_foreach(ptr->list, cur, |
---|
992 | ncur=abac_term_copy(cur); |
---|
993 | abac_list_add(nptr->list, ncur); |
---|
994 | ); |
---|
995 | return nptr; |
---|
996 | } |
---|
997 | |
---|
998 | abac_param_list_t *abac_param_list_new(abac_term_t *term) |
---|
999 | { |
---|
1000 | abac_param_list_t *ptr=abac_xmalloc(sizeof(abac_param_list_t)); |
---|
1001 | ptr->list=abac_list_new(); |
---|
1002 | abac_list_add(ptr->list, abac_term_dup(term)); |
---|
1003 | return ptr; |
---|
1004 | } |
---|
1005 | |
---|
1006 | abac_param_list_t *abac_param_list_free(abac_param_list_t *ptr) |
---|
1007 | { |
---|
1008 | abac_list_t *list=ptr->list; |
---|
1009 | abac_term_t *cur; |
---|
1010 | abac_list_foreach(list, cur, |
---|
1011 | abac_term_free(cur); |
---|
1012 | ); |
---|
1013 | abac_list_free(list); |
---|
1014 | free(ptr); |
---|
1015 | } |
---|
1016 | |
---|
1017 | abac_param_list_t *abac_param_list_add_term(abac_param_list_t *ptr, abac_term_t *term) |
---|
1018 | { |
---|
1019 | abac_list_t *list=ptr->list; |
---|
1020 | abac_list_add(list, abac_term_dup(term)); |
---|
1021 | return ptr; |
---|
1022 | } |
---|
1023 | |
---|
1024 | |
---|
1025 | /* term1:cond1,term2:cond2 */ |
---|
1026 | char* abac_param_list_string_with_condition(abac_param_list_t *ptr) |
---|
1027 | { |
---|
1028 | if(ptr->list == NULL) |
---|
1029 | return ""; |
---|
1030 | |
---|
1031 | abac_term_t *cur; |
---|
1032 | char *tmp=NULL, *final=NULL; |
---|
1033 | abac_list_foreach(ptr->list, cur, |
---|
1034 | char *s=abac_term_string_with_condition(cur); |
---|
1035 | if(final==NULL) { |
---|
1036 | final=abac_xstrdup(s); |
---|
1037 | } else { |
---|
1038 | tmp=final; |
---|
1039 | final=NULL; |
---|
1040 | asprintf(&final,"%s,%s",tmp,s); |
---|
1041 | free(tmp); |
---|
1042 | } |
---|
1043 | free(s); |
---|
1044 | ); |
---|
1045 | return final; |
---|
1046 | } |
---|
1047 | |
---|
1048 | /* [type:term1:cond1],[type:term2:cond2] */ |
---|
1049 | char* abac_param_list_typed_string_with_condition(abac_param_list_t *ptr) |
---|
1050 | { |
---|
1051 | if(ptr->list == NULL) |
---|
1052 | return ""; |
---|
1053 | |
---|
1054 | abac_term_t *cur; |
---|
1055 | char *tmp=NULL, *final=NULL; |
---|
1056 | abac_list_foreach(ptr->list, cur, |
---|
1057 | char *s=abac_term_typed_string_with_condition(cur); |
---|
1058 | if(final==NULL) { |
---|
1059 | final=abac_xstrdup(s); |
---|
1060 | } else { |
---|
1061 | tmp=final; |
---|
1062 | final=NULL; |
---|
1063 | asprintf(&final,"%s,%s",tmp,s); |
---|
1064 | DEBUG_PRINTF("typed param so far, %s\n", final); |
---|
1065 | free(tmp); |
---|
1066 | } |
---|
1067 | free(s); |
---|
1068 | ); |
---|
1069 | DEBUG_PRINTF("typed param so far, %s\n", final); |
---|
1070 | return final; |
---|
1071 | } |
---|
1072 | |
---|
1073 | /* term1,term2 */ |
---|
1074 | char* abac_param_list_string(abac_param_list_t *ptr) |
---|
1075 | { |
---|
1076 | abac_list_t *list=ptr->list; |
---|
1077 | if(list == NULL) |
---|
1078 | return ""; |
---|
1079 | abac_term_t *cur; |
---|
1080 | char *final=NULL; |
---|
1081 | char *tmp=NULL; |
---|
1082 | |
---|
1083 | /* collect up all the string */ |
---|
1084 | abac_list_foreach(list, cur, |
---|
1085 | char *s=abac_term_string(cur); |
---|
1086 | if(final==NULL) { |
---|
1087 | final=abac_xstrdup(s); |
---|
1088 | } else { |
---|
1089 | tmp=final; |
---|
1090 | final=NULL; |
---|
1091 | asprintf(&final,"%s,%s",tmp,s); |
---|
1092 | DEBUG_PRINTF("param so far, %s\n", final); |
---|
1093 | free(tmp); |
---|
1094 | } |
---|
1095 | free(s); |
---|
1096 | ); |
---|
1097 | DEBUG_PRINTF("param so far, %s\n", final); |
---|
1098 | return final; |
---|
1099 | } |
---|
1100 | |
---|
1101 | /* make a stack of it for the abac.hh */ |
---|
1102 | abac_term_t **abac_param_list_vectorize(abac_param_list_t *ptr) |
---|
1103 | { |
---|
1104 | abac_term_t **terms=NULL; |
---|
1105 | abac_list_t *list=ptr->list; |
---|
1106 | int cnt=0; |
---|
1107 | if(list != NULL) |
---|
1108 | cnt=abac_list_size(list); |
---|
1109 | |
---|
1110 | // make the array (leave space to NULL terminate it) |
---|
1111 | // n.b., even if the list is empty, we still return an array that |
---|
1112 | // only contains the NULL terminator |
---|
1113 | terms = abac_xmalloc(sizeof(abac_term_t *) * (cnt + 1)); |
---|
1114 | |
---|
1115 | abac_term_t *cur; |
---|
1116 | int i = 0; |
---|
1117 | if(i<cnt) { |
---|
1118 | abac_list_foreach(list, cur, |
---|
1119 | terms[i++] = abac_term_dup(cur); |
---|
1120 | ); |
---|
1121 | } |
---|
1122 | terms[i] = NULL; |
---|
1123 | return terms; |
---|
1124 | } |
---|
1125 | |
---|
1126 | |
---|
1127 | void abac_terms_free(abac_term_t **terms) |
---|
1128 | { |
---|
1129 | /* always null terminating */ |
---|
1130 | assert(terms); |
---|
1131 | int i; |
---|
1132 | for (i = 0; terms[i] != NULL; ++i) { |
---|
1133 | abac_term_free(terms[i]); |
---|
1134 | } |
---|
1135 | free(terms); |
---|
1136 | } |
---|
1137 | |
---|