[718ad924] | 1 | |
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| 2 | /***********************************************************************/ |
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[d037f54] | 3 | /* clause generation called to generate credential clauses with a */ |
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| 4 | /* given credential syntax structure (made from parser or from a */ |
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| 5 | /* pre-existing structure */ |
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| 6 | /* There are 2 passes, */ |
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| 7 | /* first pass, process named cred id, and constraint range/role/oset */ |
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| 8 | /* 2nd pass, process rule left / right */ |
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[718ad924] | 9 | /***********************************************************************/ |
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| 10 | #include <stdio.h> |
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| 11 | #include <assert.h> |
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| 12 | #include <stdlib.h> |
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| 13 | |
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[8bd77b5] | 14 | #include "abac_internal.h" |
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[718ad924] | 15 | #include "abac_set.h" |
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| 16 | #include "abac_util.h" |
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| 17 | |
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| 18 | #include "uthash.h" |
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| 19 | |
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| 20 | // index to generate C1,C2.. |
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| 21 | static int cred_count=0; |
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| 22 | |
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[7727f26] | 23 | static int debug=0; |
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[d037f54] | 24 | int ABAC_IN_PROLOG=0; |
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[7727f26] | 25 | |
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[440ba20] | 26 | abac_list_t *abac_pl_constraints=NULL; |
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| 27 | |
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| 28 | /* to track id certs within a rule clause */ |
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| 29 | typedef struct _abac_id_cert_t { |
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| 30 | char *principalname; |
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| 31 | int type; /* keyidtype */ |
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| 32 | char *clause; |
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| 33 | } abac_id_cert_t; |
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| 34 | abac_list_t *abac_pl_id_certs = NULL; |
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[9335cfa] | 35 | |
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[440ba20] | 36 | extern int using_this; |
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[d037f54] | 37 | |
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[b5a3da4] | 38 | extern char* abac_yyfptr_encoded; |
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[440ba20] | 39 | |
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[9b43fc3] | 40 | void generate_pl_set_abac_yyfptr_encoded(char *string) |
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| 41 | { |
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| 42 | abac_yyfptr_encoded=abac_xstrdup(string); |
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| 43 | } |
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| 44 | |
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[440ba20] | 45 | char *generate_pl_type_clause(char *principalname, int type); |
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| 46 | |
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[b5a3da4] | 47 | |
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[718ad924] | 48 | /***********************************************************************/ |
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[d037f54] | 49 | char *prologIt(char *str) |
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| 50 | { |
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| 51 | char *tmp=NULL; |
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| 52 | asprintf(&tmp,"p%s",str); |
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| 53 | return tmp; |
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| 54 | } |
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| 55 | |
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[9335cfa] | 56 | static char* isX() |
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| 57 | { |
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| 58 | static char x_string[2]="X"; |
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| 59 | static char this_string[5]="This"; |
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| 60 | if(using_this) |
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| 61 | return this_string; |
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| 62 | else |
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| 63 | return x_string; |
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| 64 | } |
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| 65 | |
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[718ad924] | 66 | static int _get_next_cred_idx() |
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| 67 | { |
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| 68 | cred_count++; |
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| 69 | return cred_count; |
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| 70 | } |
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| 71 | |
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| 72 | /* remember to free the returned string */ |
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| 73 | static char *_compose_cred_list() |
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| 74 | { |
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[da5afdf] | 75 | int i=cred_count; |
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[718ad924] | 76 | if(cred_count==0) return ""; |
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| 77 | |
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| 78 | char *clist=(char *)abac_xmalloc(sizeof(char)*(cred_count)*3); |
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| 79 | strcpy(clist,"C1"); |
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| 80 | if (cred_count==1) return clist; |
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| 81 | |
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| 82 | i=1; |
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| 83 | while(i!=cred_count) { |
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| 84 | i++; |
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| 85 | sprintf(clist,"%s,C%d",clist,i); |
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| 86 | } |
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| 87 | return clist; |
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| 88 | } |
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| 89 | |
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[440ba20] | 90 | |
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| 91 | /************************************************************************/ |
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| 92 | /* this is for tracking prolog constraints */ |
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| 93 | void abac_pl_init_constraints() |
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| 94 | { |
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| 95 | abac_pl_constraints = abac_list_new(); |
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| 96 | } |
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| 97 | |
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| 98 | void abac_pl_free_constraints() |
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| 99 | { |
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| 100 | char *cur; |
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| 101 | abac_list_foreach(abac_pl_constraints, cur, |
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| 102 | if(cur) |
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| 103 | free(cur); |
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| 104 | ); |
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| 105 | abac_list_free(abac_pl_constraints); |
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| 106 | abac_pl_constraints=NULL; |
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| 107 | } |
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| 108 | |
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| 109 | int abac_pl_cnt_constraints() |
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| 110 | { |
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| 111 | return abac_list_size(abac_pl_constraints); |
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| 112 | } |
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| 113 | |
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| 114 | char *abac_pl_string_constraints() |
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| 115 | { |
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| 116 | int first=1; |
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| 117 | char *tmp=NULL; |
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| 118 | char *final=NULL; |
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| 119 | char* cur; |
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| 120 | abac_list_foreach(abac_pl_constraints, cur, |
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| 121 | if(cur) |
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| 122 | if(first) { |
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| 123 | final=abac_xstrdup(cur); |
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| 124 | first=0; |
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| 125 | } else { |
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| 126 | tmp=final; |
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| 127 | final=NULL; |
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| 128 | int cnt=asprintf(&final,"%s,%s", tmp, cur); |
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| 129 | } |
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| 130 | ); |
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| 131 | return final; |
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| 132 | } |
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| 133 | |
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| 134 | void abac_pl_add_constraints(char *constraint) |
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| 135 | { |
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| 136 | if(abac_pl_constraints == NULL) |
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| 137 | abac_pl_init_constraints(); |
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| 138 | char* nptr=abac_xstrdup(constraint); |
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| 139 | abac_list_add(abac_pl_constraints, nptr); |
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| 140 | } |
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| 141 | |
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| 142 | |
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| 143 | /************************************************************************/ |
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| 144 | void abac_pl_init_id_certs() |
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| 145 | { |
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| 146 | abac_pl_id_certs = abac_list_new(); |
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| 147 | } |
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| 148 | |
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| 149 | void abac_pl_free_id_certs() |
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| 150 | { |
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| 151 | if(abac_pl_id_certs==NULL) |
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| 152 | return; |
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| 153 | |
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| 154 | abac_id_cert_t *id; |
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| 155 | abac_list_foreach(abac_pl_id_certs, id, |
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| 156 | if(id) |
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| 157 | free(id->principalname); |
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| 158 | free(id->clause); |
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| 159 | free(id); |
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| 160 | ); |
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| 161 | abac_list_free(abac_pl_id_certs); |
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| 162 | abac_pl_id_certs = NULL; |
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| 163 | } |
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| 164 | |
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| 165 | int abac_pl_cnt_id_certs() |
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| 166 | { |
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| 167 | return abac_list_size(abac_pl_id_certs); |
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| 168 | } |
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| 169 | |
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| 170 | char *abac_pl_string_id_certs() |
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| 171 | { |
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| 172 | int first=1; |
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| 173 | char *tmp=NULL; |
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| 174 | abac_id_cert_t *cur; |
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| 175 | abac_list_foreach(abac_pl_id_certs, cur, |
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| 176 | if(cur) |
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| 177 | if(first) { |
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| 178 | tmp=abac_xstrdup(cur->clause); |
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| 179 | first=0; |
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| 180 | } else { |
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| 181 | int cnt=asprintf(&tmp,"%s,%s", tmp, cur->clause); |
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| 182 | } |
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| 183 | ); |
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| 184 | return tmp; |
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| 185 | } |
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| 186 | |
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| 187 | void abac_pl_add_id_certs(char *principalname, int type) |
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| 188 | { |
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| 189 | abac_id_cert_t *id_cert=NULL; |
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| 190 | int found=0; |
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| 191 | abac_id_cert_t *cur; |
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| 192 | |
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| 193 | if(debug) { |
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[b92a620] | 194 | fprintf(stderr,"add_id_certs: adding --> (%s)\n", principalname); |
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[440ba20] | 195 | } |
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| 196 | |
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| 197 | if(abac_pl_id_certs == NULL) { |
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| 198 | abac_pl_init_id_certs(); |
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| 199 | } else { |
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| 200 | abac_list_foreach(abac_pl_id_certs, cur, |
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| 201 | if(cur) |
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| 202 | if(strcmp(cur->principalname,principalname)==0) { |
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| 203 | found=1; |
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| 204 | break; |
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| 205 | } |
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| 206 | ); |
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| 207 | } |
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| 208 | |
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| 209 | if (found) { |
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| 210 | return; |
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| 211 | } else { |
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| 212 | id_cert=abac_xmalloc(sizeof(abac_id_cert_t)); |
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| 213 | id_cert->principalname=abac_xstrdup(principalname); |
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| 214 | id_cert->type=type; |
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| 215 | id_cert->clause=generate_pl_type_clause(principalname,type); |
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| 216 | abac_list_add(abac_pl_id_certs, id_cert); |
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| 217 | } |
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| 218 | } |
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| 219 | |
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[7b548fa] | 220 | /***********************************************************************/ |
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[8bd77b5] | 221 | /* generate role(p_name, r_name, param..) */ |
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| 222 | /* or oset(p_name, r_name, param..) */ |
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| 223 | static char* generate_pl_head_string(abac_aspect_t *ptr) |
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[718ad924] | 224 | { |
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| 225 | char *tmp=NULL; |
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[d037f54] | 226 | char *principalname; |
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| 227 | PROLOG(principalname=abac_aspect_principal_name(ptr);); |
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[8bd77b5] | 228 | char *aspectname=abac_aspect_aspect_name(ptr); |
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| 229 | char *typestring=abac_aspect_type_string(ptr); |
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[718ad924] | 230 | char *param_string=NULL; |
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| 231 | int cnt=0; |
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| 232 | |
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| 233 | /* can not be a linked role */ |
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[8bd77b5] | 234 | abac_param_list_t *aspect_params=abac_aspect_aspect_params(ptr); |
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| 235 | if(aspect_params) { |
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[d037f54] | 236 | PROLOG(param_string=abac_param_list_string(aspect_params);); |
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[718ad924] | 237 | } |
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| 238 | |
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| 239 | if (param_string != NULL) { |
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[8bd77b5] | 240 | cnt=asprintf(&tmp,"%s(%s,%s,%s)", |
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| 241 | typestring, principalname, aspectname, param_string); |
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[718ad924] | 242 | free(param_string); |
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| 243 | } else { |
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[8bd77b5] | 244 | cnt=asprintf(&tmp,"%s(%s,%s)", |
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| 245 | typestring, principalname, aspectname); |
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[718ad924] | 246 | } |
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[7727f26] | 247 | |
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[b92a620] | 248 | if(debug && tmp) fprintf(stderr,"generate_pl_head_string: (%s)\n",tmp); |
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[718ad924] | 249 | if(cnt>0) |
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| 250 | return tmp; |
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| 251 | else |
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| 252 | return NULL; |
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| 253 | } |
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| 254 | |
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| 255 | /* generate role(p_name, r_name, param..) with isMember call ?? */ |
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[8bd77b5] | 256 | /* generate oset(p_name, r_name, param..) with isMember call ?? */ |
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| 257 | static char* generate_pl_tail_string(abac_aspect_t *ptr) |
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[718ad924] | 258 | { |
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| 259 | |
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[da5afdf] | 260 | char *tmp=NULL; |
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| 261 | |
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[8bd77b5] | 262 | /* for oset case, |
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[da5afdf] | 263 | A.oset <- B |
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| 264 | A.oset <- Obj |
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| 265 | A.oset <- B.oset |
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| 266 | A.oset <- B.role.oset |
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| 267 | */ |
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[8bd77b5] | 268 | /* o only if it is an oset and object */ |
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| 269 | if(abac_aspect_is_object(ptr)) { |
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| 270 | char *objectname=abac_aspect_object_name(ptr); |
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[da5afdf] | 271 | tmp=abac_xstrdup(objectname); |
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| 272 | return tmp; |
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| 273 | } else { |
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[d037f54] | 274 | char *principalname; |
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| 275 | PROLOG(principalname=abac_aspect_principal_name(ptr);); |
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[8bd77b5] | 276 | char *aspectname=abac_aspect_aspect_name(ptr); |
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| 277 | char *linkedname=abac_aspect_linked_role_name(ptr); |
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| 278 | char *typestring=abac_aspect_type_string(ptr); |
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[da5afdf] | 279 | |
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| 280 | char *param_string=NULL; |
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| 281 | char *linked_param_string=NULL; |
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| 282 | int cnt=0; |
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[8bd77b5] | 283 | |
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| 284 | abac_param_list_t *aspect_params=abac_aspect_aspect_params(ptr); |
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| 285 | if(aspect_params) { |
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[d037f54] | 286 | PROLOG(param_string=abac_param_list_string(aspect_params);); |
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[da5afdf] | 287 | } |
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[8bd77b5] | 288 | |
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| 289 | abac_param_list_t *linked_role_params=abac_aspect_linked_role_params(ptr); |
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[da5afdf] | 290 | if(linked_role_params) { |
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[d037f54] | 291 | PROLOG(linked_param_string=abac_param_list_string(linked_role_params);); |
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[da5afdf] | 292 | } |
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[8bd77b5] | 293 | |
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[da5afdf] | 294 | /* b.r.r */ |
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[8bd77b5] | 295 | if(linkedname!=NULL && aspectname!=NULL && principalname!=NULL ) { |
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[da5afdf] | 296 | int fst=_get_next_cred_idx(); |
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| 297 | int snd=_get_next_cred_idx(); |
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| 298 | if(linked_param_string !=NULL) { |
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| 299 | if (param_string != NULL) { |
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[8bd77b5] | 300 | cnt=asprintf(&tmp,"isMember(Y,role(%s,%s,%s),C%d),isMember(%s,%s(Y,%s,%s),C%d)", |
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| 301 | principalname, |
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| 302 | linkedname,linked_param_string,fst, |
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| 303 | isX(), typestring, |
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| 304 | aspectname,param_string,snd); |
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[da5afdf] | 305 | free(param_string); |
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| 306 | } else { |
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[8bd77b5] | 307 | cnt=asprintf(&tmp,"isMember(Y,role(%s,%s,%s),C%d),isMember(%s,%s(Y,%s),C%d)", |
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| 308 | principalname, |
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| 309 | linkedname,linked_param_string,fst, |
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| 310 | isX(), typestring, |
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| 311 | aspectname,snd); |
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[da5afdf] | 312 | } |
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| 313 | free(linked_param_string); |
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| 314 | } else { |
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[8bd77b5] | 315 | if (aspect_params != NULL) { |
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| 316 | cnt=asprintf(&tmp,"isMember(Y,role(%s,%s),C%d),isMember(%s,%s(Y,%s,%s),C%d)", |
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| 317 | principalname, |
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| 318 | linkedname,fst, |
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| 319 | isX(),typestring, |
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| 320 | aspectname,param_string,snd); |
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[da5afdf] | 321 | free(param_string); |
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| 322 | } else { |
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[8bd77b5] | 323 | cnt=asprintf(&tmp,"isMember(Y,role(%s,%s),C%d),isMember(%s,%s(Y,%s),C%d)", |
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[da5afdf] | 324 | principalname, |
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| 325 | linkedname,fst, |
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[8bd77b5] | 326 | isX(),typestring, |
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| 327 | aspectname,snd); |
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[da5afdf] | 328 | } |
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| 329 | } |
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| 330 | if(cnt>0) |
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| 331 | return tmp; |
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| 332 | else |
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| 333 | return NULL; |
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| 334 | } |
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| 335 | /* b.r */ |
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[8bd77b5] | 336 | if(linkedname==NULL && aspectname!=NULL && principalname!=NULL ) { |
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[da5afdf] | 337 | int fst=_get_next_cred_idx(); |
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| 338 | if(param_string != NULL) { |
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[8bd77b5] | 339 | cnt=asprintf(&tmp,"isMember(%s,%s(%s,%s,%s),C%d)", |
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| 340 | isX(),typestring, |
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| 341 | principalname, aspectname, param_string, fst); |
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[da5afdf] | 342 | free(param_string); |
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| 343 | } else { |
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[8bd77b5] | 344 | cnt=asprintf(&tmp,"isMember(%s,%s(%s,%s),C%d)", |
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| 345 | isX(), typestring, |
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| 346 | principalname, aspectname, fst); |
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[da5afdf] | 347 | } |
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| 348 | if(cnt>0) |
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| 349 | return tmp; |
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| 350 | else |
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| 351 | return NULL; |
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| 352 | } |
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| 353 | /* b */ |
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[8bd77b5] | 354 | if(linkedname==NULL && aspectname==NULL && principalname!=NULL ) { |
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[da5afdf] | 355 | tmp=abac_xstrdup(principalname); |
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| 356 | return tmp; |
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| 357 | } |
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[8bd77b5] | 358 | |
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| 359 | return tmp; |
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| 360 | } |
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[da5afdf] | 361 | return tmp; |
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| 362 | } |
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[8bd77b5] | 363 | |
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[da5afdf] | 364 | |
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| 365 | /********************************************************************************/ |
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| 366 | |
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| 367 | static char *_build_constraint_rule_clause(char *head_string, char *tail_string) |
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| 368 | { |
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| 369 | /*only, A.R <- B */ |
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[440ba20] | 370 | if(debug) |
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[b92a620] | 371 | fprintf(stderr,"calling _build_constraint_rule_clause (%s)(%s)\n", head_string, tail_string); |
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[da5afdf] | 372 | char *tmp; |
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| 373 | int idx=_get_next_cred_idx(); |
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| 374 | asprintf(&tmp, "isMember(%s,%s,C%d)", tail_string,head_string,idx); |
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| 375 | return tmp; |
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| 376 | } |
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| 377 | |
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[8bd77b5] | 378 | static char *_build_rule_clause(char *aspectname, char *head_string, |
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[d5bbd3e] | 379 | char *tail_string, char *id_string, char *constraint_string) |
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[718ad924] | 380 | { |
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| 381 | char *tmp=NULL; |
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| 382 | |
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[8bd77b5] | 383 | if(aspectname == NULL) { |
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[718ad924] | 384 | /* A.R <- B */ |
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[d5bbd3e] | 385 | if(id_string == NULL && constraint_string == NULL) { |
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[da5afdf] | 386 | asprintf(&tmp, "isMember(%s,%s,['%s'])", |
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| 387 | tail_string,head_string,abac_yyfptr_encoded); |
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| 388 | } else { |
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[d5bbd3e] | 389 | if(id_string == NULL) { |
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| 390 | asprintf(&tmp, "isMember(%s,%s,['%s']) :- %s", |
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| 391 | tail_string,head_string,abac_yyfptr_encoded, |
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| 392 | constraint_string); |
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| 393 | } else if(constraint_string == NULL) { |
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| 394 | asprintf(&tmp, "isMember(%s,%s,['%s']) :- %s", |
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| 395 | tail_string,head_string,abac_yyfptr_encoded, |
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| 396 | id_string); |
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| 397 | } else { asprintf(&tmp, "isMember(%s,%s,['%s']) :- %s,%s", |
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| 398 | tail_string,head_string,abac_yyfptr_encoded, |
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| 399 | id_string, constraint_string); |
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| 400 | } |
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[718ad924] | 401 | } |
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| 402 | } else { |
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| 403 | /* A.R <- B.R */ |
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| 404 | /* A.R <- B.R.R */ |
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| 405 | if (cred_count==0) { |
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[d5bbd3e] | 406 | if(id_string == NULL && constraint_string == NULL) { |
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[9335cfa] | 407 | asprintf(&tmp,"isMember(%s,%s,['%s']):-%s", |
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| 408 | isX(), |
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[da5afdf] | 409 | head_string, abac_yyfptr_encoded, tail_string); |
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[718ad924] | 410 | } else { |
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[d5bbd3e] | 411 | if(id_string == NULL) { |
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[9335cfa] | 412 | asprintf(&tmp,"isMember(%s,%s,['%s']):-%s,%s", |
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| 413 | isX(), |
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[d5bbd3e] | 414 | head_string, abac_yyfptr_encoded, tail_string, |
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| 415 | constraint_string); |
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| 416 | } else if(constraint_string == NULL) { |
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[9335cfa] | 417 | asprintf(&tmp,"isMember(%s,%s,['%s']):-%s,%s", |
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| 418 | isX(), |
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[d5bbd3e] | 419 | head_string, abac_yyfptr_encoded, id_string, |
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| 420 | tail_string); |
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| 421 | } else { |
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[9335cfa] | 422 | asprintf(&tmp,"isMember(%s,%s,['%s']):-%s,%s,%s", |
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| 423 | isX(), |
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[d5bbd3e] | 424 | head_string, abac_yyfptr_encoded, id_string, |
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| 425 | tail_string, constraint_string); |
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| 426 | } |
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[718ad924] | 427 | } |
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| 428 | } else { |
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| 429 | char *tmp_cred_list=_compose_cred_list(); |
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[d5bbd3e] | 430 | if(id_string == NULL && constraint_string == NULL) { |
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[9335cfa] | 431 | asprintf(&tmp,"isMember(%s,%s,L):-%s, appendL([['%s'],%s],L)", |
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| 432 | isX(), |
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[da5afdf] | 433 | head_string, tail_string, |
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| 434 | abac_yyfptr_encoded, tmp_cred_list); |
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[718ad924] | 435 | } else { |
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[d5bbd3e] | 436 | if(id_string == NULL) { |
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[9335cfa] | 437 | asprintf(&tmp,"isMember(%s,%s,L):-%s, %s, appendL([['%s'],%s],L)", |
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| 438 | isX(), |
---|
[d5bbd3e] | 439 | head_string, tail_string, constraint_string, |
---|
[da5afdf] | 440 | abac_yyfptr_encoded, tmp_cred_list); |
---|
[d5bbd3e] | 441 | } else if(constraint_string == NULL) { |
---|
[9335cfa] | 442 | asprintf(&tmp,"isMember(%s,%s,L):-%s, %s, appendL([['%s'],%s],L)", |
---|
| 443 | isX(), |
---|
[d5bbd3e] | 444 | head_string, id_string, tail_string, |
---|
| 445 | abac_yyfptr_encoded, tmp_cred_list); |
---|
| 446 | } else { |
---|
[9335cfa] | 447 | asprintf(&tmp,"isMember(%s,%s,L):-%s, %s, %s, appendL([['%s'],%s],L)", |
---|
| 448 | isX(), |
---|
[d5bbd3e] | 449 | head_string, id_string, tail_string, |
---|
| 450 | constraint_string, |
---|
| 451 | abac_yyfptr_encoded, tmp_cred_list); |
---|
| 452 | } |
---|
[718ad924] | 453 | } |
---|
| 454 | free(tmp_cred_list); |
---|
| 455 | cred_count=0; |
---|
| 456 | } |
---|
| 457 | } |
---|
[da5afdf] | 458 | return tmp; |
---|
| 459 | } |
---|
| 460 | |
---|
| 461 | |
---|
[8bd77b5] | 462 | static char *generate_pl_rule_clause(char *head_rule_string, |
---|
| 463 | abac_aspect_t *tail_rule, char *id_string, char *constraint_string) |
---|
[da5afdf] | 464 | { |
---|
[8bd77b5] | 465 | char *aspectname=abac_aspect_aspect_name(tail_rule); |
---|
| 466 | char *tail_rule_string=generate_pl_tail_string(tail_rule); |
---|
| 467 | if(aspectname == NULL && tail_rule_string == NULL) |
---|
[da5afdf] | 468 | goto error; |
---|
[8bd77b5] | 469 | char *tmp=_build_rule_clause(aspectname,head_rule_string, tail_rule_string, |
---|
[d5bbd3e] | 470 | id_string, constraint_string); |
---|
[8bd77b5] | 471 | if(tail_rule_string) free(tail_rule_string); |
---|
[da5afdf] | 472 | return tmp; |
---|
| 473 | |
---|
| 474 | error: |
---|
[8bd77b5] | 475 | if(tail_rule_string) free(tail_rule_string); |
---|
[da5afdf] | 476 | return NULL; |
---|
| 477 | } |
---|
| 478 | |
---|
[718ad924] | 479 | static char *_add_string(char *dstr, char *nstr) |
---|
| 480 | { |
---|
| 481 | if(strlen(dstr)==0) { |
---|
| 482 | dstr=abac_xstrdup(nstr); |
---|
| 483 | return dstr; |
---|
| 484 | } else { |
---|
| 485 | int len = strlen(dstr)+strlen(nstr)+2; |
---|
| 486 | char *tmp=abac_xmalloc(len*sizeof(char)); |
---|
| 487 | sprintf(tmp,"%s,%s", dstr,nstr); |
---|
| 488 | free(dstr); |
---|
| 489 | return tmp; |
---|
| 490 | } |
---|
| 491 | return NULL; |
---|
| 492 | } |
---|
| 493 | |
---|
[d5bbd3e] | 494 | static char *_build_intersecting_clause(char *head_role_string, |
---|
| 495 | char *tail_role_string, char* id_string, char* constraint_string) |
---|
[da5afdf] | 496 | { |
---|
| 497 | char *tmp; |
---|
| 498 | |
---|
| 499 | if (cred_count==0) { |
---|
[d5bbd3e] | 500 | if(id_string == NULL && constraint_string == NULL) { |
---|
[9335cfa] | 501 | asprintf(&tmp,"isMember(%s,%s,['%s']):-%s", |
---|
| 502 | isX(), |
---|
[da5afdf] | 503 | head_role_string, abac_yyfptr_encoded, tail_role_string); |
---|
| 504 | } else { |
---|
[d5bbd3e] | 505 | if(id_string == NULL) { |
---|
[9335cfa] | 506 | asprintf(&tmp,"isMember(%s,%s,['%s']):-%s, %s", |
---|
| 507 | isX(), |
---|
[d5bbd3e] | 508 | head_role_string, abac_yyfptr_encoded, |
---|
| 509 | tail_role_string, constraint_string); |
---|
| 510 | } else if(constraint_string == NULL) { |
---|
[9335cfa] | 511 | asprintf(&tmp,"isMember(%s,%s,['%s']):-%s, %s", |
---|
| 512 | isX(), |
---|
[e88c95b] | 513 | head_role_string, abac_yyfptr_encoded, |
---|
[d5bbd3e] | 514 | id_string, tail_role_string); |
---|
| 515 | } else { |
---|
[9335cfa] | 516 | asprintf(&tmp,"isMember(%s,%s,['%s']):-%s, %s, %s", |
---|
| 517 | isX(), |
---|
[d5bbd3e] | 518 | head_role_string, abac_yyfptr_encoded, |
---|
| 519 | id_string, tail_role_string, constraint_string); |
---|
| 520 | } |
---|
[da5afdf] | 521 | } |
---|
| 522 | } else { |
---|
| 523 | char *tmp_cred_list=_compose_cred_list(); |
---|
[d5bbd3e] | 524 | if(id_string == NULL && constraint_string == NULL) { |
---|
[9335cfa] | 525 | asprintf(&tmp,"isMember(%s,%s,L):-%s, appendL([['%s'],%s],L)", |
---|
| 526 | isX(), |
---|
[da5afdf] | 527 | head_role_string, tail_role_string, |
---|
| 528 | abac_yyfptr_encoded, tmp_cred_list); |
---|
| 529 | } else { |
---|
[d5bbd3e] | 530 | if(id_string == NULL) { |
---|
[9335cfa] | 531 | asprintf(&tmp,"isMember(%s,%s,L):-%s, %s, appendL([['%s'],%s],L)", |
---|
| 532 | isX(), |
---|
[d5bbd3e] | 533 | head_role_string, tail_role_string, constraint_string, |
---|
| 534 | abac_yyfptr_encoded, tmp_cred_list); |
---|
| 535 | } else if(constraint_string == NULL) { |
---|
[9335cfa] | 536 | asprintf(&tmp,"isMember(%s,%s,L):-%s, %s, appendL([['%s'],%s],L)", |
---|
| 537 | isX(), |
---|
[d5bbd3e] | 538 | head_role_string, id_string, tail_role_string, |
---|
| 539 | abac_yyfptr_encoded, tmp_cred_list); |
---|
| 540 | } else { |
---|
[9335cfa] | 541 | asprintf(&tmp,"isMember(%s,%s,L):-%s, %s, %s, appendL([['%s'],%s],L)", |
---|
| 542 | isX(), |
---|
[d5bbd3e] | 543 | head_role_string, id_string, tail_role_string, constraint_string, |
---|
| 544 | abac_yyfptr_encoded, tmp_cred_list); |
---|
| 545 | } |
---|
[da5afdf] | 546 | } |
---|
| 547 | free(tmp_cred_list); |
---|
| 548 | cred_count=0; |
---|
| 549 | } |
---|
| 550 | return tmp; |
---|
| 551 | } |
---|
| 552 | |
---|
[8bd77b5] | 553 | static char *generate_pl_intersecting_clause(char *head_role_string, |
---|
| 554 | abac_aspect_t *tail_role, char* id_string, char* constraint_string) |
---|
[718ad924] | 555 | { |
---|
| 556 | char *tmp=NULL; |
---|
| 557 | char* tail_role_string=NULL; |
---|
[8bd77b5] | 558 | abac_list_t *list=abac_aspect_prereqs(tail_role); |
---|
[718ad924] | 559 | /* A.R <- B.R & C.R.R */ |
---|
[8bd77b5] | 560 | /* A.O <- B.O & C.R.O */ |
---|
[718ad924] | 561 | |
---|
| 562 | if (list != NULL) { |
---|
[8bd77b5] | 563 | abac_aspect_t *cur; |
---|
[718ad924] | 564 | abac_list_foreach(list, cur, |
---|
[8bd77b5] | 565 | char *ntmp=generate_pl_tail_string(cur); |
---|
[b92a620] | 566 | if(debug) fprintf(stderr," intersecting tail: (%s)\n",ntmp); |
---|
[8bd77b5] | 567 | if(tail_role_string==NULL) { |
---|
| 568 | tail_role_string=abac_xstrdup(ntmp); |
---|
| 569 | } else { |
---|
| 570 | tmp=tail_role_string; |
---|
| 571 | tail_role_string=NULL; |
---|
| 572 | asprintf(&tail_role_string,"%s, %s",tmp,ntmp); |
---|
| 573 | free(tmp); |
---|
| 574 | } |
---|
[718ad924] | 575 | free(ntmp); |
---|
| 576 | ); |
---|
| 577 | } |
---|
| 578 | |
---|
[b92a620] | 579 | if(debug) fprintf(stderr," final intersecting tail: (%s)\n",tail_role_string); |
---|
[d5bbd3e] | 580 | tmp=_build_intersecting_clause(head_role_string, tail_role_string, id_string,constraint_string); |
---|
[718ad924] | 581 | if(tail_role_string) free(tail_role_string); |
---|
| 582 | return tmp; |
---|
| 583 | } |
---|
| 584 | |
---|
| 585 | /* generate the yap isMember rule clause for the credential stmt */ |
---|
[8bd77b5] | 586 | abac_list_t *generate_pl_clauses(abac_aspect_t *head_aspect, abac_aspect_t *tail_aspect) |
---|
[718ad924] | 587 | { |
---|
| 588 | char *tmp=NULL; |
---|
[d5bbd3e] | 589 | char *id_clauses_string=NULL; |
---|
| 590 | char *constraint_clauses_string=NULL; |
---|
[718ad924] | 591 | abac_list_t *clauses=abac_list_new(); |
---|
[da5afdf] | 592 | |
---|
[440ba20] | 593 | int cnt=abac_pl_cnt_id_certs(); |
---|
[718ad924] | 594 | if(cnt > 0) { /* string it up */ |
---|
[440ba20] | 595 | id_clauses_string=abac_pl_string_id_certs(); |
---|
| 596 | abac_pl_free_id_certs(); |
---|
[718ad924] | 597 | } |
---|
| 598 | |
---|
[8bd77b5] | 599 | /* make a loop here */ |
---|
[440ba20] | 600 | cnt=abac_pl_cnt_constraints(); |
---|
[da5afdf] | 601 | if(cnt > 0) { |
---|
[440ba20] | 602 | constraint_clauses_string=abac_pl_string_constraints(); |
---|
| 603 | abac_pl_free_constraints(); |
---|
[da5afdf] | 604 | } |
---|
| 605 | |
---|
[8bd77b5] | 606 | /* generate head's string */ |
---|
| 607 | char *head_string=generate_pl_head_string(head_aspect); |
---|
| 608 | if(head_string == NULL) |
---|
[718ad924] | 609 | goto error; |
---|
| 610 | |
---|
| 611 | /* tail side */ |
---|
[8bd77b5] | 612 | if(abac_aspect_is_intersection(tail_aspect)) { |
---|
| 613 | tmp=generate_pl_intersecting_clause(head_string, tail_aspect, |
---|
[d5bbd3e] | 614 | id_clauses_string, constraint_clauses_string); |
---|
[718ad924] | 615 | } else { |
---|
[8bd77b5] | 616 | tmp=generate_pl_rule_clause(head_string, tail_aspect, |
---|
[d5bbd3e] | 617 | id_clauses_string, constraint_clauses_string); |
---|
[718ad924] | 618 | } |
---|
| 619 | if(tmp==NULL) |
---|
| 620 | goto error; |
---|
[da5afdf] | 621 | |
---|
[718ad924] | 622 | abac_list_add(clauses,tmp); |
---|
| 623 | return clauses; |
---|
| 624 | |
---|
| 625 | error: |
---|
[8bd77b5] | 626 | if(head_string) free(head_string); |
---|
[d5bbd3e] | 627 | if(id_clauses_string) free(id_clauses_string); |
---|
| 628 | if(constraint_clauses_string) free(constraint_clauses_string); |
---|
[da5afdf] | 629 | return clauses; |
---|
| 630 | } |
---|
| 631 | |
---|
| 632 | /* should be just 1 */ |
---|
[8bd77b5] | 633 | char *generate_pl_constraint_clause(abac_aspect_t *head_aspect, char *tail_string) |
---|
[da5afdf] | 634 | { |
---|
[8bd77b5] | 635 | /* generate head's role or oset string */ |
---|
| 636 | char *head_string=generate_pl_head_string(head_aspect); |
---|
| 637 | if(head_string == NULL) |
---|
[da5afdf] | 638 | goto error; |
---|
| 639 | |
---|
| 640 | /* tail side */ |
---|
[8bd77b5] | 641 | char *tmp=_build_constraint_rule_clause(head_string, tail_string); |
---|
[da5afdf] | 642 | if(tmp==NULL) |
---|
| 643 | goto error; |
---|
| 644 | |
---|
| 645 | return tmp; |
---|
| 646 | |
---|
| 647 | error: |
---|
[8bd77b5] | 648 | if(head_string) free(head_string); |
---|
[da5afdf] | 649 | return NULL; |
---|
| 650 | } |
---|
| 651 | |
---|
[d5bbd3e] | 652 | /* integer(X)<10 */ |
---|
| 653 | /* X='abc' */ |
---|
| 654 | char *generate_pl_range_constraint(char *typestr,char *var,char *val,char *op) |
---|
[da5afdf] | 655 | { |
---|
| 656 | char *tmp=NULL; |
---|
[d5bbd3e] | 657 | if(typestr) |
---|
| 658 | asprintf(&tmp,"%s(%s)%s%s",typestr,var,op,val); |
---|
| 659 | else |
---|
| 660 | asprintf(&tmp,"%s%s%s",var,op,val); |
---|
[da5afdf] | 661 | return tmp; |
---|
| 662 | } |
---|
| 663 | |
---|
[7b548fa] | 664 | /* compare(op,var,val) */ |
---|
| 665 | char *generate_pl_range_time_constraint(char *var,char *val,char *op) |
---|
| 666 | { |
---|
| 667 | char *tmp=NULL; |
---|
| 668 | asprintf(&tmp,"compare(%s,%s,%s)",op,var,val); |
---|
| 669 | return tmp; |
---|
| 670 | } |
---|
| 671 | |
---|
[718ad924] | 672 | /* generate the yap isType rule clause for the type, |
---|
| 673 | isType(Acme, keyid); */ |
---|
| 674 | char *generate_pl_type_clause(char *principalname, int type) |
---|
| 675 | { |
---|
| 676 | char *tmp=NULL; |
---|
[8bd77b5] | 677 | char *typeid= abac_idtype_string(type); |
---|
[7b548fa] | 678 | if(typeid==NULL || strcmp(typeid,"NULL")==0) |
---|
[d5bbd3e] | 679 | panic("generate_pl_type_clause: can not have null typeid"); |
---|
[440ba20] | 680 | if(debug) |
---|
[b92a620] | 681 | fprintf(stderr,"generate type clause, (%s)\n", principalname); |
---|
[718ad924] | 682 | int cnt=asprintf(&tmp,"isType(%s,%s)", |
---|
| 683 | principalname, typeid); |
---|
| 684 | return tmp; |
---|
| 685 | } |
---|
| 686 | |
---|