[718ad924] | 1 | |
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| 2 | /*********************************************************** |
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| 3 | abac_param.c |
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[da5afdf] | 4 | |
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| 5 | dterm=data term of rt1 |
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| 6 | param is a kind of dterm |
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[718ad924] | 7 | ***********************************************************/ |
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| 8 | #include <assert.h> |
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| 9 | #include <stdlib.h> |
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| 10 | #include <stdio.h> |
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| 11 | #include <string.h> |
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[da5afdf] | 12 | #include <ctype.h> |
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[718ad924] | 13 | |
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| 14 | #include "abac_list.h" |
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| 15 | #include "abac_util.h" |
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| 16 | |
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| 17 | #include "abac_pl.h" |
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| 18 | |
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[da5afdf] | 19 | typedef enum _termtype { |
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| 20 | e_TERM_INTEGER = 1, |
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| 21 | e_TERM_URN = 2, |
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| 22 | e_TERM_FLOAT = 3, |
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| 23 | e_TERM_BOOLEAN = 4, |
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| 24 | e_TERM_STRING = 5, |
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| 25 | e_TERM_TIME = 6, |
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| 26 | e_TERM_PRINCIPAL = 7, |
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| 27 | e_TERM_ANONYMOUS = 8 |
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| 28 | } termtype_t; |
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| 29 | |
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| 30 | /* termname[dtermtype] */ |
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| 31 | static char *const termname[] = |
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| 32 | { |
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| 33 | "badterm", |
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| 34 | "integer", |
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| 35 | "urn", |
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| 36 | "float", |
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| 37 | "boolean", |
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| 38 | "string", |
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| 39 | "time" , |
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| 40 | "principal", |
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| 41 | "anonymous", |
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| 42 | 0 |
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| 43 | }; |
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| 44 | static int termname_cnt=8; |
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| 45 | |
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| 46 | typedef enum _condtype_t { |
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| 47 | e_COND_ROLE = 1, |
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| 48 | e_COND_OSET = 2 |
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| 49 | } condtype_t; |
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| 50 | |
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[718ad924] | 51 | struct _abac_condition_t { |
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[da5afdf] | 52 | int type; |
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[718ad924] | 53 | char *string; |
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[da5afdf] | 54 | union { |
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| 55 | abac_role_t *of_role; |
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| 56 | abac_oset_t *of_oset; |
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| 57 | }; |
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[718ad924] | 58 | }; |
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| 59 | |
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[da5afdf] | 60 | struct _abac_term_t { |
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[718ad924] | 61 | int type; |
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| 62 | char *name; |
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| 63 | abac_condition_t *constraint; |
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| 64 | }; |
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| 65 | |
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| 66 | /* new, free, add one */ |
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| 67 | struct _abac_param_list_t { |
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| 68 | abac_list_t *list; |
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| 69 | }; |
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| 70 | |
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[da5afdf] | 71 | |
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[718ad924] | 72 | /******************************************************************/ |
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[da5afdf] | 73 | char *abac_term_name(abac_term_t *term) |
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| 74 | { |
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| 75 | return term->name; |
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| 76 | } |
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| 77 | |
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| 78 | abac_condition_t *abac_term_constraint(abac_term_t *term) |
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| 79 | { |
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| 80 | return term->constraint; |
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| 81 | } |
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| 82 | |
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| 83 | char *abac_term_type(int i) |
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| 84 | { |
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| 85 | return termname[i]; |
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| 86 | } |
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| 87 | |
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| 88 | int abac_term_is_time_type(int i) |
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| 89 | { |
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| 90 | if (i == e_TERM_TIME) |
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| 91 | return 1; |
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| 92 | return 0; |
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| 93 | } |
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[718ad924] | 94 | |
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[da5afdf] | 95 | int abac_term_is_string_type(int i) |
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[718ad924] | 96 | { |
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[da5afdf] | 97 | if (i == e_TERM_STRING) |
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| 98 | return 1; |
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| 99 | return 0; |
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| 100 | } |
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| 101 | |
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| 102 | int abac_term_is_integer_type(int i) |
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| 103 | { |
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| 104 | if (i == e_TERM_INTEGER) |
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| 105 | return 1; |
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| 106 | return 0; |
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| 107 | } |
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| 108 | |
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| 109 | int abac_term_is_urn_type(int i) |
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| 110 | { |
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| 111 | if (i == e_TERM_URN) |
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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 | int abac_verify_term_type(char *type) { |
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| 117 | int i; |
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| 118 | |
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| 119 | if (type == NULL) |
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| 120 | return 0; |
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| 121 | |
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| 122 | for (i = 1; i <= termname_cnt ; i++) |
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| 123 | if(strcmp(type,termname[i])==0) |
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| 124 | return i; |
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| 125 | return 0; |
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| 126 | } |
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| 127 | |
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| 128 | static abac_condition_t *abac_condition_new(int type,char* condstr,void *cptr) |
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| 129 | { |
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| 130 | abac_condition_t *ptr= |
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| 131 | (abac_condition_t *)abac_xmalloc(sizeof(abac_condition_t)); |
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| 132 | ptr->type=type; |
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| 133 | ptr->string=strdup(condstr); |
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| 134 | ptr->of_role=cptr; |
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[718ad924] | 135 | return ptr; |
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| 136 | } |
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| 137 | |
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| 138 | static void abac_condition_free(abac_condition_t *ptr) |
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| 139 | { |
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[da5afdf] | 140 | if(ptr->type == e_COND_OSET) |
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| 141 | abac_oset_free(ptr->of_oset); |
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| 142 | else abac_role_free(ptr->of_role); |
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| 143 | if(ptr->string) free(ptr->string); |
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[718ad924] | 144 | free(ptr); |
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| 145 | } |
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| 146 | |
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[da5afdf] | 147 | /* always add p to the name except if its a variable and needed */ |
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| 148 | abac_term_t *abac_term_new(int type, char *name, char *cond, void *cptr) |
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[718ad924] | 149 | { |
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| 150 | abac_condition_t *constraint=NULL; |
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| 151 | if (cond) { |
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[da5afdf] | 152 | if(type==e_TERM_PRINCIPAL) |
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| 153 | constraint=abac_condition_new(e_COND_ROLE,cond,cptr); |
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| 154 | else |
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| 155 | constraint=abac_condition_new(e_COND_OSET,cond,cptr); |
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[718ad924] | 156 | } |
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[da5afdf] | 157 | abac_term_t *ptr=abac_xmalloc(sizeof(abac_term_t)); |
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[718ad924] | 158 | ptr->type=type; |
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[da5afdf] | 159 | /* add p to time term if needed and not a variable */ |
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| 160 | if((!constraint) && |
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| 161 | abac_term_is_time_type(type) && isdigit(name[0])) { |
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| 162 | char *tmp; |
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| 163 | asprintf(&tmp,"p%s",name); |
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| 164 | ptr->name=tmp; |
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| 165 | free(name); |
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| 166 | } else { |
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| 167 | ptr->name=strdup(name); |
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| 168 | } |
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| 169 | |
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[718ad924] | 170 | ptr->constraint=constraint; |
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| 171 | return ptr; |
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| 172 | } |
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| 173 | |
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[da5afdf] | 174 | void abac_term_free(abac_term_t *ptr) |
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[718ad924] | 175 | { |
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| 176 | if(ptr->constraint) { |
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| 177 | abac_condition_free(ptr->constraint); |
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| 178 | } |
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| 179 | free(ptr->name); |
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| 180 | free(ptr); |
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| 181 | } |
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| 182 | |
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[da5afdf] | 183 | abac_param_list_t *abac_param_list_new(abac_term_t *term) |
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[718ad924] | 184 | { |
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| 185 | abac_param_list_t *ptr=abac_xmalloc(sizeof(abac_param_list_t)); |
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| 186 | ptr->list=abac_list_new(); |
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[da5afdf] | 187 | abac_list_add(ptr->list, term); |
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[718ad924] | 188 | return ptr; |
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| 189 | } |
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| 190 | |
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| 191 | abac_param_list_t *abac_param_list_free(abac_param_list_t *ptr) |
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| 192 | { |
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| 193 | abac_list_t *list=ptr->list; |
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[da5afdf] | 194 | abac_term_t *cur; |
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[718ad924] | 195 | abac_list_foreach(list, cur, |
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[da5afdf] | 196 | abac_term_free(cur); |
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[718ad924] | 197 | ); |
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| 198 | abac_list_free(list); |
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| 199 | free(ptr); |
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| 200 | } |
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| 201 | |
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[da5afdf] | 202 | abac_param_list_t *abac_param_list_add_term(abac_param_list_t *ptr, abac_term_t *term) |
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[718ad924] | 203 | { |
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| 204 | abac_list_t *list=ptr->list; |
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[da5afdf] | 205 | abac_list_add(list, term); |
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[718ad924] | 206 | return ptr; |
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| 207 | } |
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| 208 | |
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[da5afdf] | 209 | abac_term_t *abac_term_add_constraint(abac_term_t *ptr, abac_condition_t *cond) |
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[718ad924] | 210 | { |
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| 211 | if(ptr->constraint) { |
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| 212 | abac_condition_free(ptr->constraint); |
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| 213 | } |
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| 214 | ptr->constraint = cond; |
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| 215 | return ptr; |
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| 216 | } |
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| 217 | |
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| 218 | /* name or name:cond */ |
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[da5afdf] | 219 | static char *abac_term_string_with_condition(abac_term_t *ptr) |
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[718ad924] | 220 | { |
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| 221 | char *tmp=NULL; |
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| 222 | char *cond=NULL; |
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| 223 | char *name=ptr->name; |
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[da5afdf] | 224 | int len=strlen(name)+1; |
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[718ad924] | 225 | if(ptr->constraint) { |
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| 226 | cond=ptr->constraint->string; |
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| 227 | len=len+strlen(cond)+1; |
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| 228 | } |
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| 229 | tmp = abac_xmalloc(len); |
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| 230 | if(cond) |
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| 231 | sprintf(tmp,"%s:%s", name, cond); |
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| 232 | else |
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| 233 | sprintf(tmp,"%s", name); |
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| 234 | return tmp; |
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| 235 | } |
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| 236 | |
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| 237 | /* len of name or name:cond */ |
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[da5afdf] | 238 | static int abac_term_len_with_condition(abac_term_t *ptr) |
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[718ad924] | 239 | { |
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| 240 | char *cond=NULL; |
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| 241 | char *name=ptr->name; |
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| 242 | int len=strlen(name); |
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| 243 | if(ptr->constraint) { |
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| 244 | cond=ptr->constraint->string; |
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| 245 | len=len+strlen(cond)+1; |
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| 246 | } |
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| 247 | return len; |
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| 248 | } |
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| 249 | |
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| 250 | /* just name */ |
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[da5afdf] | 251 | static char *abac_term_string(abac_term_t *ptr) |
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[718ad924] | 252 | { |
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[da5afdf] | 253 | if(ptr->type == abac_verify_term_type("urn") || |
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| 254 | ptr->type == abac_verify_term_type("string") ) { |
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| 255 | char *str; |
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| 256 | asprintf(&str, "%s", ptr->name); |
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| 257 | return str; |
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| 258 | } |
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[718ad924] | 259 | return strdup(ptr->name); |
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| 260 | } |
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| 261 | |
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| 262 | /* just len of name */ |
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[da5afdf] | 263 | static int abac_term_len(abac_term_t *ptr) |
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[718ad924] | 264 | { |
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[da5afdf] | 265 | /* including the 2 ' */ |
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| 266 | if(ptr->type == abac_verify_term_type("urn") || |
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| 267 | ptr->type == abac_verify_term_type("string") ) { |
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| 268 | return strlen(ptr->name)+2; |
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| 269 | } |
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[718ad924] | 270 | return strlen(ptr->name); |
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| 271 | } |
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| 272 | |
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| 273 | /* param1:cond1,param2:cond2 */ |
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| 274 | char* abac_param_list_string_with_condition(abac_param_list_t *ptr) |
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| 275 | { |
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| 276 | if(ptr->list == NULL) |
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| 277 | return ""; |
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| 278 | |
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[da5afdf] | 279 | abac_term_t *cur; |
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[718ad924] | 280 | char *tmp; |
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| 281 | int len=0; |
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| 282 | /* collect up all the lens so can allocate once */ |
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| 283 | abac_list_foreach(ptr->list, cur, |
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[da5afdf] | 284 | int l=abac_term_len_with_condition(cur); |
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[718ad924] | 285 | len=len+l+1; |
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| 286 | ); |
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[da5afdf] | 287 | tmp=abac_xmalloc((len+1) * sizeof(char)); |
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[718ad924] | 288 | /* collect up all the string */ |
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| 289 | int first=1; |
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| 290 | abac_list_foreach(ptr->list, cur, |
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[da5afdf] | 291 | char *s=abac_term_string_with_condition(cur); |
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[718ad924] | 292 | if(first) { |
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| 293 | strcpy(tmp,s); |
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| 294 | first=0; |
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| 295 | } else { |
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| 296 | strcat(tmp,","); |
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| 297 | strcat(tmp,s); |
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| 298 | } |
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| 299 | free(s); |
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| 300 | ); |
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| 301 | return tmp; |
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| 302 | } |
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| 303 | |
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| 304 | /* param1,param2 */ |
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| 305 | char* abac_param_list_string(abac_param_list_t *ptr) |
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| 306 | { |
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| 307 | abac_list_t *list=ptr->list; |
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| 308 | if(list == NULL) |
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| 309 | return ""; |
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[da5afdf] | 310 | abac_term_t *cur; |
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[718ad924] | 311 | char *tmp; |
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| 312 | int len=0; |
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| 313 | /* collect up all the lens so can allocate once */ |
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| 314 | abac_list_foreach(list, cur, |
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| 315 | // collect up the len |
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[da5afdf] | 316 | int l=abac_term_len(cur); |
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[718ad924] | 317 | len=len+l+1; |
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| 318 | ); |
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[da5afdf] | 319 | tmp=abac_xmalloc((len+1) * sizeof(char)); |
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[718ad924] | 320 | /* collect up all the string */ |
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| 321 | int first=1; |
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| 322 | abac_list_foreach(list, cur, |
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[da5afdf] | 323 | char *s=abac_term_string(cur); |
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[718ad924] | 324 | if(first) { |
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| 325 | strcpy(tmp,s); |
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| 326 | first=0; |
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| 327 | } else { |
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| 328 | strcat(tmp,","); |
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| 329 | strcat(tmp,s); |
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| 330 | } |
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| 331 | free(s); |
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| 332 | ); |
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| 333 | return tmp; |
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| 334 | } |
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