[7f25a67f] | 1 | #include <assert.h> |
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| 2 | #include <stdlib.h> |
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| 3 | #include <stdio.h> |
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| 4 | #include <string.h> |
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| 5 | |
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[9a411d7] | 6 | #include "abac_list.h" |
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[3c251d0] | 7 | #include "abac_util.h" |
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[7f25a67f] | 8 | |
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[202a7f9] | 9 | #include "abac_pl.h" |
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| 10 | |
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| 11 | static int debug=0; |
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| 12 | |
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[1743825] | 13 | struct _abac_role_t { |
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[202a7f9] | 14 | char *principal_name; |
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| 15 | |
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| 16 | char *linked_role_name; |
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| 17 | abac_param_list_t *linked_role_params; |
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| 18 | |
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[9a411d7] | 19 | char *role_name; |
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[202a7f9] | 20 | abac_param_list_t *role_params; |
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[7e05a2f] | 21 | |
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| 22 | char *string; |
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[d4cbf71] | 23 | char *linked; |
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[fbb591e] | 24 | |
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[9a411d7] | 25 | abac_list_t *prereqs; |
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| 26 | |
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[fbb591e] | 27 | int refcount; |
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[7f25a67f] | 28 | }; |
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| 29 | |
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[202a7f9] | 30 | |
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[7f25a67f] | 31 | /** |
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| 32 | * Create a new principal and initialize it. |
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| 33 | */ |
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[dcc1a8e] | 34 | abac_role_t *abac_role_principal_new(char *principal) { |
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[7f25a67f] | 35 | assert(principal != NULL); |
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| 36 | |
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[1743825] | 37 | abac_role_t *role; |
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[7f25a67f] | 38 | |
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| 39 | if (strlen(principal) == 0) |
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| 40 | return NULL; |
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| 41 | |
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[3c251d0] | 42 | role = abac_xmalloc(sizeof(abac_role_t)); |
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[7f25a67f] | 43 | |
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[202a7f9] | 44 | role->principal_name = abac_xstrdup(principal); |
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[53e540d] | 45 | |
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[9a411d7] | 46 | role->role_name = NULL; |
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[202a7f9] | 47 | role->role_params = NULL; |
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| 48 | |
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| 49 | role->linked_role_name = NULL; |
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| 50 | role->linked_role_params = NULL; |
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[7f25a67f] | 51 | |
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[3c251d0] | 52 | role->string = abac_xstrdup(principal); |
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[d4cbf71] | 53 | role->linked = NULL; |
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[9a411d7] | 54 | role->prereqs = NULL; |
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[7e05a2f] | 55 | |
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[fbb591e] | 56 | role->refcount = 1; |
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| 57 | |
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[7f25a67f] | 58 | return role; |
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| 59 | } |
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| 60 | |
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| 61 | /** |
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| 62 | * Create a new role and initialize it. |
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| 63 | */ |
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[202a7f9] | 64 | abac_role_t *abac_role_role_new(char *principal_name, char *role_name) { |
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| 65 | assert(principal_name != NULL); |
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[9a411d7] | 66 | assert(role_name != NULL); |
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[7f25a67f] | 67 | |
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[1743825] | 68 | abac_role_t *role; |
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[7f25a67f] | 69 | |
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[202a7f9] | 70 | if (strlen(principal_name) == 0 || strlen(role_name) == 0) |
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[7f25a67f] | 71 | return NULL; |
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| 72 | |
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[53e540d] | 73 | /* MEI */ |
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[202a7f9] | 74 | if(debug) |
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| 75 | printf("DEBUG:adding a new role (%s) to principal (%s)\n", role_name, principal_name); |
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[53e540d] | 76 | |
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[3c251d0] | 77 | role = abac_xmalloc(sizeof(abac_role_t)); |
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[7f25a67f] | 78 | |
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[202a7f9] | 79 | role->principal_name = abac_xstrdup(principal_name); |
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[9a411d7] | 80 | role->role_name = abac_xstrdup(role_name); |
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[202a7f9] | 81 | role->role_params = NULL; |
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| 82 | |
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| 83 | role->linked_role_name = NULL; |
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| 84 | role->linked_role_params = NULL; |
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[7f25a67f] | 85 | |
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[202a7f9] | 86 | int prin_len = strlen(principal_name); |
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[9a411d7] | 87 | int role_len = strlen(role_name); |
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[7e05a2f] | 88 | |
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[9a411d7] | 89 | role->string = abac_xmalloc(prin_len + 1 + role_len + 1); |
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[202a7f9] | 90 | memcpy(role->string, principal_name, prin_len); |
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[7e05a2f] | 91 | role->string[prin_len] = '.'; |
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[9a411d7] | 92 | memcpy(role->string + prin_len + 1, role_name, role_len); |
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| 93 | role->string[prin_len + 1 + role_len] = 0; |
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[7e05a2f] | 94 | |
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[202a7f9] | 95 | |
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[d4cbf71] | 96 | role->linked = NULL; |
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[9a411d7] | 97 | role->prereqs = NULL; |
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[d4cbf71] | 98 | |
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[fbb591e] | 99 | role->refcount = 1; |
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| 100 | |
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[7f25a67f] | 101 | return role; |
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| 102 | } |
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| 103 | |
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| 104 | /** |
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| 105 | * Created a new linking role and initialize it. |
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| 106 | */ |
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[202a7f9] | 107 | abac_role_t *abac_role_linking_new(char *principal_name, char *linked_role_name, char *role_name) { |
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| 108 | assert(principal_name != NULL); |
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| 109 | assert(linked_role_name != NULL); |
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[9a411d7] | 110 | assert(role_name != NULL); |
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[7f25a67f] | 111 | |
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[1743825] | 112 | abac_role_t *role; |
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[7f25a67f] | 113 | |
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[202a7f9] | 114 | if (strlen(principal_name) == 0 || strlen(linked_role_name) == 0 || strlen(role_name) == 0) |
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[7f25a67f] | 115 | return NULL; |
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| 116 | |
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[53e540d] | 117 | /* MEI */ |
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[202a7f9] | 118 | if(debug) |
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| 119 | printf("DEBUG:adding a new linked (%s) to role(%s) for principal(%s)\n", |
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| 120 | linked_role_name, role_name, principal_name); |
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[53e540d] | 121 | |
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[3c251d0] | 122 | role = abac_xmalloc(sizeof(abac_role_t)); |
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[7f25a67f] | 123 | |
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[202a7f9] | 124 | role->principal_name = abac_xstrdup(principal_name); |
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| 125 | |
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| 126 | role->linked_role_name = abac_xstrdup(linked_role_name); |
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| 127 | role->linked_role_params = NULL; |
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[9a411d7] | 128 | role->role_name = abac_xstrdup(role_name); |
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[202a7f9] | 129 | role->role_params = NULL; |
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[7f25a67f] | 130 | |
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[202a7f9] | 131 | int prin_len = strlen(principal_name); |
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| 132 | int link_len = strlen(linked_role_name); |
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[9a411d7] | 133 | int role_len = strlen(role_name); |
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[7e05a2f] | 134 | |
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[9a411d7] | 135 | role->string = abac_xmalloc(prin_len + 1 + link_len + 1 + role_len + 1); |
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[7e05a2f] | 136 | |
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[202a7f9] | 137 | memcpy(role->string, principal_name, prin_len); |
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[7e05a2f] | 138 | role->string[prin_len] = '.'; |
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[202a7f9] | 139 | memcpy(role->string + prin_len + 1, linked_role_name, link_len); |
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[d4cbf71] | 140 | role->string[prin_len + 1 + link_len] = 0; |
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| 141 | |
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| 142 | // hack: linked role is first two parts of full string |
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[3c251d0] | 143 | role->linked = abac_xstrdup(role->string); |
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[d4cbf71] | 144 | |
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[7e05a2f] | 145 | role->string[prin_len + 1 + link_len] = '.'; |
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[9a411d7] | 146 | memcpy(role->string + prin_len + 1 + link_len + 1, role_name, role_len); |
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| 147 | role->string[prin_len + 1 + link_len + 1 + role_len] = 0; |
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| 148 | |
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| 149 | role->prereqs = NULL; |
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| 150 | role->refcount = 1; |
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| 151 | |
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| 152 | return role; |
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| 153 | } |
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| 154 | |
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| 155 | /** |
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| 156 | * Create an intersection role. |
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| 157 | */ |
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| 158 | abac_role_t *abac_role_intersection_new(char *name, abac_list_t *prereqs) { |
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| 159 | abac_role_t *role = abac_xmalloc(sizeof(abac_role_t)); |
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| 160 | |
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[202a7f9] | 161 | role->principal_name = role->linked_role_name = role->role_name = NULL; |
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| 162 | role->linked_role_params = NULL; |
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| 163 | role->role_params = NULL; |
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[9a411d7] | 164 | |
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[202a7f9] | 165 | role->linked = NULL; |
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[9a411d7] | 166 | role->string = abac_xstrdup(name); |
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| 167 | role->prereqs = prereqs; |
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[7e05a2f] | 168 | |
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[fbb591e] | 169 | role->refcount = 1; |
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| 170 | |
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[7f25a67f] | 171 | return role; |
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| 172 | } |
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| 173 | |
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[c66e07c] | 174 | /** |
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[fbb591e] | 175 | * Decrease a role's reference count, freeing it when it reaches 0. |
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[c66e07c] | 176 | */ |
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[dcc1a8e] | 177 | void abac_role_free(abac_role_t *role) { |
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[202a7f9] | 178 | |
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| 179 | if(debug) |
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| 180 | printf("DEBUG:trying to freeing a role %d\n",(int)role); |
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| 181 | |
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[c66e07c] | 182 | if (role == NULL) |
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| 183 | return; |
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| 184 | |
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[202a7f9] | 185 | if(debug) |
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| 186 | printf("DEBUG:freeing a role %d\n",(int)role); |
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| 187 | |
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[fbb591e] | 188 | --role->refcount; |
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| 189 | if (role->refcount > 0) |
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| 190 | return; |
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| 191 | |
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[da5afdf] | 192 | if(role->principal_name) free(role->principal_name); |
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| 193 | if(role->linked_role_name) free(role->linked_role_name); |
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| 194 | if(role->role_name) free(role->role_name); |
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[c66e07c] | 195 | |
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[da5afdf] | 196 | if(role->string) free(role->string); |
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| 197 | if(role->linked) free(role->linked); |
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[7e05a2f] | 198 | |
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[202a7f9] | 199 | if (role->role_params != NULL) { |
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| 200 | abac_param_list_free(role->role_params); |
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| 201 | } |
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| 202 | |
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| 203 | if (role->linked_role_params != NULL) { |
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| 204 | abac_param_list_free(role->linked_role_params); |
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| 205 | } |
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| 206 | |
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[9a411d7] | 207 | if (role->prereqs != NULL) { |
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| 208 | abac_role_t *cur; |
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| 209 | abac_list_foreach(role->prereqs, cur, |
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| 210 | abac_role_free(cur); |
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| 211 | ); |
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| 212 | abac_list_free(role->prereqs); |
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| 213 | } |
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| 214 | |
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[c66e07c] | 215 | free(role); |
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| 216 | } |
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| 217 | |
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[da5afdf] | 218 | abac_role_t *abac_role_role_add_param(abac_role_t *role, abac_term_t *param) |
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[202a7f9] | 219 | { |
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| 220 | if(role->role_params == NULL) { |
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| 221 | role->role_params=abac_param_list_new(param); |
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| 222 | } else { |
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[da5afdf] | 223 | abac_param_list_add_term(role->role_params, param); |
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[202a7f9] | 224 | } |
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| 225 | return role; |
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| 226 | } |
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| 227 | |
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| 228 | abac_role_t *abac_role_add_intersecting_role(abac_role_t *role, abac_role_t *nrole) |
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| 229 | { |
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| 230 | abac_list_add(role->prereqs, nrole); |
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| 231 | return role; |
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| 232 | } |
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| 233 | |
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[da5afdf] | 234 | abac_role_t *abac_role_role_add_linked_param(abac_role_t *role, abac_term_t *param) |
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[202a7f9] | 235 | { |
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| 236 | if(role->linked_role_params == NULL) { |
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| 237 | role->linked_role_params=abac_param_list_new(param); |
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| 238 | } else { |
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[da5afdf] | 239 | abac_param_list_add_term(role->linked_role_params, param); |
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[202a7f9] | 240 | } |
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| 241 | return role; |
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| 242 | } |
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| 243 | |
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| 244 | |
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[7f25a67f] | 245 | /** |
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[9a411d7] | 246 | * Create a non-intersecting role from a string. Handles principals, roles, |
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| 247 | * and linking roles. |
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[7f25a67f] | 248 | */ |
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[9a411d7] | 249 | static abac_role_t *_abac_single_role_from_string(char *string) { |
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[7f25a67f] | 250 | int num_dots = 0; |
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| 251 | char *dot = string; |
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[9a411d7] | 252 | abac_role_t *ret = NULL; |
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[7f25a67f] | 253 | |
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| 254 | // count the dots |
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| 255 | while ((dot = strchr(dot, '.')) != NULL) { |
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| 256 | ++num_dots; |
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| 257 | ++dot; |
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| 258 | } |
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| 259 | |
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| 260 | // no dots: easy case, principal |
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| 261 | if (num_dots == 0) |
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[9a411d7] | 262 | ret = abac_role_principal_new(string); |
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[7f25a67f] | 263 | |
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| 264 | // a role has exactly 1 dot |
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[9a411d7] | 265 | else if (num_dots == 1) { |
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[7f25a67f] | 266 | char *principal = string; |
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| 267 | |
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| 268 | // terminate the principal part |
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| 269 | dot = strchr(principal, '.'); |
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| 270 | *dot = 0; |
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| 271 | |
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| 272 | // role name comes after the dot |
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[9a411d7] | 273 | char *role_name = dot + 1; |
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[7f25a67f] | 274 | |
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| 275 | // create the role (if possible) |
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[9a411d7] | 276 | ret = abac_role_role_new(string, role_name); |
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[7f25a67f] | 277 | } |
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| 278 | |
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| 279 | // a linked role has 2 dots |
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| 280 | else if (num_dots == 2) { |
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| 281 | char *principal = string; |
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| 282 | |
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| 283 | // terminate the principal part |
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| 284 | dot = strchr(principal, '.'); |
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| 285 | *dot = 0; |
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| 286 | |
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| 287 | // linked name is next, terminate it |
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| 288 | char *linked = dot + 1; |
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| 289 | dot = strchr(linked, '.'); |
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| 290 | *dot = 0; |
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| 291 | |
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| 292 | // role name is last, already terminated |
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[9a411d7] | 293 | char *role_name = dot + 1; |
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[7f25a67f] | 294 | |
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[9a411d7] | 295 | ret = abac_role_linking_new(principal, linked, role_name); |
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[7f25a67f] | 296 | } |
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| 297 | |
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| 298 | // more than two dots: return NULL |
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| 299 | |
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[9a411d7] | 300 | return ret; |
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| 301 | } |
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| 302 | |
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| 303 | /** |
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| 304 | * Create a role from a string. Handles intersecting and normal roles. |
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| 305 | */ |
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| 306 | abac_role_t *abac_role_from_string(char *string) { |
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| 307 | abac_list_t *prereqs = NULL; |
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| 308 | abac_role_t *ret = NULL, *role; |
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| 309 | char *roles[256]; |
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| 310 | int num_roles, i; |
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| 311 | |
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| 312 | char *original = string; |
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| 313 | |
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| 314 | // make a copy so we can mess with it |
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| 315 | string = abac_xstrdup(string); |
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| 316 | |
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| 317 | // split the string (in case of an intersection num_roles > 1) |
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| 318 | abac_split(string, " & ", roles, &num_roles); |
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| 319 | |
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| 320 | // normal role: |
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| 321 | if (num_roles == 1) |
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| 322 | ret = _abac_single_role_from_string(string); |
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[7f25a67f] | 323 | |
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[9a411d7] | 324 | else { |
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| 325 | prereqs = abac_list_new(); |
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| 326 | |
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| 327 | for (i = 0; i < num_roles; ++i) { |
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| 328 | // make sure the tail role is valid |
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| 329 | role = abac_role_from_string(roles[i]); |
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| 330 | if (role == NULL) |
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| 331 | goto error; |
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| 332 | |
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| 333 | abac_list_add(prereqs, role); |
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| 334 | } |
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| 335 | ret = abac_role_intersection_new(original, prereqs); |
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| 336 | } |
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| 337 | |
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| 338 | free(string); |
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[7f25a67f] | 339 | return ret; |
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[9a411d7] | 340 | |
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| 341 | error: |
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[202a7f9] | 342 | |
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[9a411d7] | 343 | if (prereqs != NULL) { |
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[202a7f9] | 344 | abac_role_t *cur; |
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| 345 | abac_list_foreach(prereqs, cur, |
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| 346 | abac_role_free(cur); |
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| 347 | ); |
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| 348 | abac_list_free(prereqs); |
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[9a411d7] | 349 | } |
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| 350 | free(string); |
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| 351 | return NULL; |
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[7f25a67f] | 352 | } |
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| 353 | |
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[9a411d7] | 354 | |
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[ea401bc] | 355 | /** |
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[fbb591e] | 356 | * Increase a role's reference count. |
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[ea401bc] | 357 | */ |
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[dcc1a8e] | 358 | abac_role_t *abac_role_dup(abac_role_t *role) { |
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[fbb591e] | 359 | assert(role != NULL); |
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[ea401bc] | 360 | |
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[fbb591e] | 361 | ++role->refcount; |
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| 362 | return role; |
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[ea401bc] | 363 | } |
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| 364 | |
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[7f25a67f] | 365 | /** |
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| 366 | * True if a role is a principal. |
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| 367 | */ |
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[dcc1a8e] | 368 | int abac_role_is_principal(abac_role_t *role) { |
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[7f25a67f] | 369 | assert(role != NULL); |
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[202a7f9] | 370 | return role->role_name == NULL && role->linked_role_name == NULL && role->prereqs == NULL; |
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[7f25a67f] | 371 | } |
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| 372 | |
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| 373 | /** |
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| 374 | * True if a role is a role. |
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| 375 | */ |
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[dcc1a8e] | 376 | int abac_role_is_role(abac_role_t *role) { |
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[7f25a67f] | 377 | assert(role != NULL); |
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[202a7f9] | 378 | return role->role_name != NULL && role->linked_role_name == NULL && role->prereqs == NULL; |
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[7f25a67f] | 379 | } |
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| 380 | |
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| 381 | /** |
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| 382 | * True if a role is a linked role. |
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| 383 | */ |
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[dcc1a8e] | 384 | int abac_role_is_linking(abac_role_t *role) { |
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[7f25a67f] | 385 | assert(role != NULL); |
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[202a7f9] | 386 | return role->linked_role_name != NULL; |
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[7f25a67f] | 387 | } |
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| 388 | |
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[9a411d7] | 389 | /** |
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| 390 | * True if a role is an intersection. |
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| 391 | */ |
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| 392 | int abac_role_is_intersection(abac_role_t *role) { |
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| 393 | assert(role != NULL); |
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| 394 | return role->prereqs != NULL; |
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| 395 | } |
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| 396 | |
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[202a7f9] | 397 | char *abac_role_intersecting_string_with_condition(abac_role_t *role) |
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| 398 | { |
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| 399 | assert(role != NULL); |
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| 400 | char *tmp=NULL; |
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| 401 | if (role->prereqs != NULL) { |
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| 402 | abac_role_t *cur; |
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| 403 | abac_list_foreach(role->prereqs, cur, |
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| 404 | char *ntmp=abac_role_string_with_condition(cur); |
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| 405 | if(tmp==NULL) { |
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| 406 | asprintf(&tmp,"%s",ntmp); |
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| 407 | } else { |
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| 408 | asprintf(&tmp,"%s & %s",tmp, ntmp); |
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| 409 | } |
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| 410 | ); |
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| 411 | } |
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| 412 | return tmp; |
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| 413 | } |
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[7e05a2f] | 414 | /** |
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| 415 | * Returns the string representation of the role. |
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[202a7f9] | 416 | * principal.role(params..) |
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[7e05a2f] | 417 | */ |
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[202a7f9] | 418 | char *abac_role_string_with_condition(abac_role_t *role) { |
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[7e05a2f] | 419 | assert(role != NULL); |
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[202a7f9] | 420 | |
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| 421 | if(abac_role_is_intersection(role)) { |
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| 422 | return abac_role_intersecting_string_with_condition(role); |
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| 423 | } |
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| 424 | |
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| 425 | char *tmp=NULL; |
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| 426 | /* use cn for now, easy to debug XXX */ |
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| 427 | char *principal_name = abac_role_principal_cn(role); |
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| 428 | char *role_name= role->role_name; |
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| 429 | char *linked_role_name = role->linked_role_name; |
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| 430 | char *params_string=NULL; |
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| 431 | char *linked_params_string=NULL; |
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| 432 | |
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| 433 | int len = 0; |
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| 434 | if(principal_name) |
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| 435 | len=len+strlen(principal_name)+1; |
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| 436 | if(role_name) |
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| 437 | len = len+strlen(role_name)+1; |
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| 438 | if(linked_role_name) |
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| 439 | len = len+strlen(linked_role_name)+1; |
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| 440 | |
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| 441 | if(role->role_params) { |
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| 442 | params_string=abac_param_list_string_with_condition(role->role_params); |
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| 443 | len = len+strlen(params_string)+3; |
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| 444 | } |
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| 445 | if(role->linked_role_params) { |
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| 446 | linked_params_string=abac_param_list_string_with_condition(role->linked_role_params); |
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| 447 | len = len+strlen(linked_params_string)+3; |
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| 448 | } |
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| 449 | |
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| 450 | /* principal */ |
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| 451 | /* principal.role */ |
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| 452 | /* principal.role(params_string) */ |
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| 453 | /* principal.linked_role(linked_params_string).role(params_string) */ |
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| 454 | tmp = abac_xmalloc(len); |
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| 455 | |
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| 456 | if(principal_name) |
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| 457 | sprintf(tmp,"%s",principal_name); |
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| 458 | |
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| 459 | if(linked_role_name) { |
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| 460 | strcat(tmp,"."); |
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| 461 | strcat(tmp,linked_role_name); |
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| 462 | } |
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| 463 | if(linked_params_string) { |
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| 464 | strcat(tmp,"("); |
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| 465 | strcat(tmp,linked_params_string); |
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| 466 | strcat(tmp,")"); |
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| 467 | } |
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| 468 | if(role_name) { |
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| 469 | strcat(tmp,"."); |
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| 470 | strcat(tmp,role_name); |
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| 471 | } |
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| 472 | if(params_string) { |
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| 473 | strcat(tmp,"("); |
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| 474 | strcat(tmp,params_string); |
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| 475 | strcat(tmp,")"); |
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| 476 | } |
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| 477 | |
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| 478 | if(linked_params_string) free(linked_params_string); |
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| 479 | if(params_string) free(params_string); |
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| 480 | return tmp; |
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| 481 | } |
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| 482 | |
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[da5afdf] | 483 | void abac_print_role_string_with_condition(abac_role_t *role,FILE *fp) |
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[202a7f9] | 484 | { |
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| 485 | char *string=abac_role_string_with_condition(role); |
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[da5afdf] | 486 | if(fp==NULL) |
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| 487 | printf("%s",string); |
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| 488 | else fprintf(fp,"%s",string); |
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[7f25a67f] | 489 | } |
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[d4cbf71] | 490 | |
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[ebde9dd] | 491 | /** |
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| 492 | * Returns the name of a role. If the role is A.r1 then return r1. If the role |
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| 493 | * is A.r1.r2 then return r2. |
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| 494 | */ |
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[dcc1a8e] | 495 | char *abac_role_role_name(abac_role_t *role) { |
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[ebde9dd] | 496 | assert(role != NULL); |
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[9a411d7] | 497 | return role->role_name; |
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[ebde9dd] | 498 | } |
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| 499 | |
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[da5afdf] | 500 | char *abac_role_role_param_string(abac_role_t *role) { |
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| 501 | assert(role != NULL); |
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| 502 | if(role->role_params) { |
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| 503 | return abac_param_list_string(role->role_params); |
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| 504 | } |
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| 505 | return NULL; |
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| 506 | } |
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| 507 | |
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[d4cbf71] | 508 | /** |
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| 509 | * Returns the linked part of a linking role. For instance, if the role is |
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| 510 | * A.r1.r2, this returns A.r1. |
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| 511 | */ |
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[dcc1a8e] | 512 | char *abac_role_linked_role(abac_role_t *role) { |
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[d4cbf71] | 513 | assert(role != NULL); |
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[202a7f9] | 514 | return role->linked_role_name; |
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[d4cbf71] | 515 | } |
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[c03fe9b] | 516 | |
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| 517 | /** |
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| 518 | * Returns the principal part of a role. The stuff before the first dot. |
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| 519 | */ |
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[dcc1a8e] | 520 | char *abac_role_principal(abac_role_t *role) { |
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[c03fe9b] | 521 | assert(role != NULL); |
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[202a7f9] | 522 | return role->principal_name; |
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| 523 | } |
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| 524 | |
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| 525 | char *abac_role_principal_cn(abac_role_t *role) { |
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| 526 | assert(role != NULL); |
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| 527 | return abac_cn_with_sha(role->principal_name); |
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[c03fe9b] | 528 | } |
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[85f33fd] | 529 | |
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[9a411d7] | 530 | /** |
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| 531 | * Returns the prereqs of an intersection. |
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| 532 | */ |
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| 533 | abac_list_t *abac_role_prereqs(abac_role_t *role) { |
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| 534 | assert(role != NULL); |
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| 535 | return role->prereqs; |
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| 536 | } |
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| 537 | |
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[202a7f9] | 538 | abac_param_list_t *abac_role_linked_role_params(abac_role_t *role) { |
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| 539 | assert(role != NULL); |
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| 540 | return role->linked_role_params; |
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| 541 | } |
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| 542 | |
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| 543 | abac_param_list_t *abac_role_role_params(abac_role_t *role) { |
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| 544 | assert(role != NULL); |
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| 545 | return role->role_params; |
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| 546 | } |
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| 547 | |
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| 548 | |
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[85f33fd] | 549 | /** |
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| 550 | * Build an attribute key from head and tail roles. Static. |
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| 551 | */ |
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| 552 | #define ROLE_SEPARATOR " <- " |
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[dcc1a8e] | 553 | char *abac_role_attr_key(abac_role_t *head_role, abac_role_t *tail_role) { |
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[202a7f9] | 554 | char *head = abac_role_string_with_condition(head_role); |
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[85f33fd] | 555 | int head_len = strlen(head); |
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| 556 | |
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[202a7f9] | 557 | char *tail = abac_role_string_with_condition(tail_role); |
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[85f33fd] | 558 | int tail_len = strlen(tail); |
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| 559 | |
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| 560 | int sep_len = sizeof(ROLE_SEPARATOR) - 1; |
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| 561 | |
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| 562 | // "head <- tail" |
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[3c251d0] | 563 | char *ret = abac_xmalloc(head_len + tail_len + sep_len + 1); |
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[85f33fd] | 564 | memcpy(ret, head, head_len); |
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| 565 | memcpy(ret + head_len, ROLE_SEPARATOR, sep_len); |
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| 566 | memcpy(ret + head_len + sep_len, tail, tail_len); |
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| 567 | ret[head_len + sep_len + tail_len] = 0; |
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| 568 | |
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| 569 | return ret; |
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| 570 | } |
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