[53e540d] | 1 | |
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| 2 | // include the GNU extension of asprintf |
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| 3 | #define _GNU_SOURCE |
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| 4 | |
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[186cb75] | 5 | #include <assert.h> |
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| 6 | |
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[5450aeb] | 7 | #include <library.h> |
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| 8 | #include <credentials/certificates/certificate.h> |
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| 9 | #include <credentials/certificates/x509.h> |
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| 10 | #include <credentials/certificates/ac.h> |
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| 11 | |
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[43e3b71] | 12 | #include "abac_verifier.h" |
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[5450aeb] | 13 | |
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[342e28f] | 14 | #include "abac_list.h" |
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[3c251d0] | 15 | #include "abac_util.h" |
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[53e540d] | 16 | #include "abac_rt0.h" |
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[5450aeb] | 17 | |
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[43e3b71] | 18 | typedef struct _abac_id_cert_t { |
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[5450aeb] | 19 | char *keyid; |
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[53e540d] | 20 | char *cn; |
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[5450aeb] | 21 | certificate_t *cert; |
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| 22 | |
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| 23 | UT_hash_handle hh; |
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[43e3b71] | 24 | } abac_id_cert_t; |
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[5450aeb] | 25 | |
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[53e540d] | 26 | |
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[401a054] | 27 | struct _abac_credential_t { |
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[1743825] | 28 | abac_role_t *head; |
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| 29 | abac_role_t *tail; |
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[5f99fbc] | 30 | certificate_t *cert; |
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| 31 | certificate_t *issuer; |
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[53e540d] | 32 | char *clause; |
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[fbb591e] | 33 | |
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| 34 | int refcount; |
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[5f99fbc] | 35 | }; |
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| 36 | |
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[53e540d] | 37 | typedef struct _abac_str_cred_t { |
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| 38 | char *strid; |
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| 39 | abac_credential_t *cred; |
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| 40 | |
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| 41 | UT_hash_handle hh; |
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| 42 | } abac_str_cred_t; |
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| 43 | |
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[43e3b71] | 44 | abac_id_cert_t *id_certs = NULL; |
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[53e540d] | 45 | abac_str_cred_t *str_creds = NULL; |
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[5450aeb] | 46 | |
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| 47 | // convert a chunk to a lowercase binary string |
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| 48 | // malloc's the string |
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| 49 | static char *_chunk_to_string(chunk_t chunk) { |
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| 50 | int i; |
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| 51 | |
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[3c251d0] | 52 | char *ret = abac_xmalloc(chunk.len * 2 + 1); |
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[5450aeb] | 53 | |
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| 54 | for (i = 0; i < chunk.len; ++i) |
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| 55 | sprintf(ret + 2 * i, "%02x", chunk.ptr[i]); |
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| 56 | |
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| 57 | return ret; |
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| 58 | } |
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| 59 | |
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| 60 | // verify that cert was issued by issuer |
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| 61 | // cert and issuer can be the same, in which case the self-sig is validated |
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[0779c99] | 62 | static int _verify_signature(certificate_t *issuer, certificate_t *cert) { |
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[5450aeb] | 63 | if (cert->issued_by(cert, issuer)) |
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| 64 | if (cert->get_validity(cert, NULL, NULL, NULL)) |
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| 65 | return 1; |
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| 66 | return 0; |
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| 67 | } |
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| 68 | |
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| 69 | /** |
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| 70 | * Init the verifier subsystem. |
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| 71 | */ |
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[43e3b71] | 72 | void abac_verifier_init(void) { |
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[1324a63] | 73 | // silence all debugging |
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| 74 | |
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[5450aeb] | 75 | if (!library_init(NULL)) |
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| 76 | exit(SS_RC_LIBSTRONGSWAN_INTEGRITY); |
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| 77 | |
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| 78 | if (!lib->plugins->load(lib->plugins, NULL, |
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| 79 | lib->settings->get_str(lib->settings, "pki.load", PLUGINS))) |
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| 80 | exit(SS_RC_INITIALIZATION_FAILED); |
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| 81 | } |
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| 82 | |
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[186cb75] | 83 | /** |
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| 84 | * Uninitialize the system, free up any allocated memory. |
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| 85 | */ |
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[43e3b71] | 86 | void abac_verifier_deinit(void) { |
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| 87 | abac_id_cert_t *id; |
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[186cb75] | 88 | while ((id = id_certs) != NULL) { |
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| 89 | HASH_DEL(id_certs, id); |
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| 90 | |
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| 91 | free(id->keyid); |
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[53e540d] | 92 | free(id->cn); |
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[186cb75] | 93 | id->cert->destroy(id->cert); |
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| 94 | free(id); |
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| 95 | } |
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[55c272b] | 96 | |
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[53e540d] | 97 | abac_str_cred_t *id2; |
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| 98 | while ((id2 = str_creds) != NULL) { |
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| 99 | HASH_DEL(str_creds, id2); |
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| 100 | |
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| 101 | free(id2->strid); |
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| 102 | free(id2); |
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| 103 | } |
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| 104 | |
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[55c272b] | 105 | library_deinit(); |
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[186cb75] | 106 | } |
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| 107 | |
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[5450aeb] | 108 | /** |
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| 109 | * Load an ID certificate. |
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| 110 | */ |
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[e898049] | 111 | static int _load_id(certificate_t *cert) { |
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[327e808] | 112 | abac_id_cert_t *id_cert = NULL; |
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[5450aeb] | 113 | char *keyid = NULL; |
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| 114 | chunk_t id; |
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| 115 | int ret; |
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[2ef48fa] | 116 | x509_t *x509 = (x509_t *)cert; |
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[5450aeb] | 117 | |
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[e898049] | 118 | assert(cert != NULL); |
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[5450aeb] | 119 | |
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[2ef48fa] | 120 | // get the key ID |
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| 121 | id = x509->get_subjectKeyIdentifier(x509); |
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[327e808] | 122 | keyid = _chunk_to_string(id); |
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| 123 | |
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[53e540d] | 124 | /* XXX MEI */ |
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| 125 | /** |
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| 126 | identification_t *issuer=cert->get_subject(cert); |
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| 127 | char *str=(char *)abac_xmalloc(strlen((char *)issuer)); |
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| 128 | sprintf(str,"%Y",issuer); |
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| 129 | **/ |
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| 130 | char *str; |
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| 131 | int rv = asprintf(&str, "%Y", cert->get_issuer(cert)); |
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| 132 | |
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| 133 | char *cn=(char *)abac_xmalloc(strlen(str)+1); |
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| 134 | cn[0]='p'; |
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| 135 | int n=sscanf(str,"CN=%s", &(cn[1])); |
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| 136 | if ( n!=1 ) { |
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| 137 | ret = ABAC_CERT_BAD_CN; |
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| 138 | goto error; |
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| 139 | } |
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| 140 | |
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| 141 | printf ("XXX keyid %s \n", keyid); |
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| 142 | printf( "XXX issuer '%s' \n", str); |
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| 143 | printf ("XXX cn %s \n", cn); |
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| 144 | free(str); |
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| 145 | |
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[327e808] | 146 | // if we already have this cert 'error' with success |
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| 147 | HASH_FIND_STR(id_certs, keyid, id_cert); |
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| 148 | if (id_cert != NULL) { |
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| 149 | ret = ABAC_CERT_SUCCESS; |
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| 150 | goto error; |
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| 151 | } |
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| 152 | |
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[5450aeb] | 153 | // validate sig |
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[0779c99] | 154 | ret = _verify_signature(cert, cert); |
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| 155 | if (!ret) { |
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| 156 | ret = ABAC_CERT_BAD_SIG; |
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| 157 | goto error; |
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| 158 | } |
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[5450aeb] | 159 | |
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| 160 | // success, add the key to the map of certificates |
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[327e808] | 161 | id_cert = abac_xmalloc(sizeof(abac_id_cert_t)); |
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[5450aeb] | 162 | id_cert->keyid = keyid; |
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| 163 | id_cert->cert = cert; |
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[53e540d] | 164 | id_cert->cn = cn; |
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[5450aeb] | 165 | HASH_ADD_KEYPTR(hh, id_certs, id_cert->keyid, strlen(id_cert->keyid), id_cert); |
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| 166 | |
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[0779c99] | 167 | return ABAC_CERT_SUCCESS; |
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[5450aeb] | 168 | |
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| 169 | error: |
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[327e808] | 170 | if (keyid != NULL) free(keyid); |
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[53e540d] | 171 | if (cn != NULL) free(cn); |
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[5450aeb] | 172 | |
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[0779c99] | 173 | return ret; |
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[5450aeb] | 174 | } |
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| 175 | |
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[e898049] | 176 | /** |
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| 177 | * Load an ID cert from a file. |
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| 178 | */ |
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[43e3b71] | 179 | int abac_verifier_load_id_file(char *filename) { |
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[61278ec] | 180 | if (lib == NULL) |
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| 181 | errx(1, "looks like you didn't call libabac_init() (lib is NULL)"); |
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| 182 | |
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[e898049] | 183 | // load the cert |
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| 184 | certificate_t *cert = lib->creds->create( |
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| 185 | lib->creds, CRED_CERTIFICATE, CERT_X509, |
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| 186 | BUILD_FROM_FILE, filename, |
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| 187 | BUILD_X509_FLAG, X509_AA, // attribute authority, dumb |
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| 188 | BUILD_END |
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| 189 | ); |
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| 190 | if (cert == NULL) |
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[0779c99] | 191 | return ABAC_CERT_INVALID; |
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[e898049] | 192 | return _load_id(cert); |
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| 193 | } |
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| 194 | |
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| 195 | /** |
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| 196 | * Load an ID cert from a chunk. |
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| 197 | */ |
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[43e3b71] | 198 | int abac_verifier_load_id_chunk(chunk_t chunk) { |
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[e898049] | 199 | // load the cert |
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| 200 | certificate_t *cert = lib->creds->create( |
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| 201 | lib->creds, CRED_CERTIFICATE, CERT_X509, |
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| 202 | BUILD_BLOB_ASN1_DER, chunk, |
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| 203 | BUILD_X509_FLAG, X509_AA, // attribute authority, dumb |
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| 204 | BUILD_END |
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| 205 | ); |
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| 206 | if (cert == NULL) |
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[0779c99] | 207 | return ABAC_CERT_INVALID; |
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[e898049] | 208 | return _load_id(cert); |
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| 209 | } |
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| 210 | |
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[53e540d] | 211 | |
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| 212 | /** |
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| 213 | * Load an attribute cert. |
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| 214 | * Returns true only if the certificate is valid and is issued by the proper |
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| 215 | * authority. |
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| 216 | */ |
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| 217 | static int _load_attribute_cert(certificate_t *cert, abac_credential_t **cred_ret) { |
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| 218 | ietf_attributes_t *attr_cert = NULL; |
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| 219 | abac_role_t *head_role = NULL; |
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| 220 | abac_role_t *tail_role = NULL; |
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| 221 | abac_id_cert_t *issuer; |
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| 222 | char *attr_string_copy; |
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| 223 | int ret, i; |
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| 224 | |
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| 225 | // get the attr |
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| 226 | ac_t *ac = (ac_t *)cert; |
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| 227 | attr_cert = ac->get_groups(ac); |
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| 228 | if (attr_cert == NULL) { |
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| 229 | ret = ABAC_CERT_INVALID; |
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| 230 | goto error; |
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| 231 | } |
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| 232 | |
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| 233 | char *attr_string = attr_cert->get_string(attr_cert); |
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| 234 | if (attr_string == NULL) { |
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| 235 | ret = ABAC_CERT_INVALID; |
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| 236 | goto error; |
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| 237 | } |
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| 238 | |
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| 239 | printf("YYY-->attr_string(%s)%d\n", attr_string, strlen(attr_string)); |
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| 240 | /* call into yacc parser */ |
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| 241 | attr_string_copy = strdup(attr_string); |
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| 242 | abac_reset_yyfptr(attr_string_copy); |
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| 243 | abac_yyinit(); |
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| 244 | int rc=yyparse(); |
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| 245 | if (rc) { |
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| 246 | ret = ABAC_CERT_INVALID; |
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| 247 | goto error; |
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| 248 | } |
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| 249 | |
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| 250 | char *head_tail[2]; |
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| 251 | abac_split(attr_string, " <- ", head_tail, &ret); |
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| 252 | if (ret != 2) { |
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| 253 | ret = ABAC_CERT_INVALID; |
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| 254 | goto error; |
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| 255 | } |
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| 256 | |
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| 257 | // must be a role |
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| 258 | head_role = abac_role_from_string(head_tail[0]); |
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| 259 | if (head_role == NULL) goto error; |
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| 260 | if (!abac_role_is_role(head_role)) { |
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| 261 | ret = ABAC_CERT_INVALID; |
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| 262 | goto error; |
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| 263 | } |
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| 264 | |
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| 265 | // make sure the tail's valid too |
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| 266 | tail_role = abac_role_from_string(head_tail[1]); |
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| 267 | if (tail_role == NULL) { |
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| 268 | ret = ABAC_CERT_INVALID; |
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| 269 | goto error; |
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| 270 | } |
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| 271 | |
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| 272 | // get the issuer based on keyid |
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| 273 | char *principal = abac_role_principal(head_role); |
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| 274 | HASH_FIND_STR(id_certs, principal, issuer); |
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| 275 | if (issuer == NULL) { |
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| 276 | ret = ABAC_CERT_MISSING_ISSUER; |
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| 277 | goto error; |
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| 278 | } |
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| 279 | |
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| 280 | // make sure the issuer's signed it |
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| 281 | ret = _verify_signature(issuer->cert, cert); |
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| 282 | if (!ret) { |
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| 283 | ret = ABAC_CERT_BAD_SIG; |
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| 284 | goto error; |
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| 285 | } |
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| 286 | |
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| 287 | // at this point we know we have a good attribute cert |
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| 288 | abac_credential_t *cred = abac_xmalloc(sizeof(abac_credential_t)); |
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| 289 | cred->head = head_role; |
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| 290 | cred->tail = tail_role; |
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| 291 | cred->cert = cert; |
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| 292 | cred->issuer = issuer->cert->get_ref(issuer->cert); |
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| 293 | cred->clause = abac_get_yap_clause(); |
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| 294 | cred->refcount = 1; |
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| 295 | *cred_ret = cred; |
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| 296 | |
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| 297 | // success, add the key to the map of certificates |
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| 298 | abac_str_cred_t *str_cred; |
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| 299 | str_cred=abac_xmalloc(sizeof(abac_str_cred_t)); |
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| 300 | str_cred->strid=attr_string_copy; |
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| 301 | str_cred->cred=cred; |
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| 302 | HASH_ADD_KEYPTR(hh, str_creds, str_cred->strid, strlen(str_cred->strid), str_cred); |
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| 303 | |
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| 304 | // free up some crap |
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| 305 | attr_cert->destroy(attr_cert); |
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| 306 | |
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| 307 | return ABAC_CERT_SUCCESS; |
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| 308 | |
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| 309 | error: |
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| 310 | if (cert != NULL) cert->destroy(cert); |
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| 311 | if (attr_cert != NULL) attr_cert->destroy(attr_cert); |
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| 312 | if (head_role != NULL) abac_role_free(head_role); |
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| 313 | if (tail_role != NULL) abac_role_free(tail_role); |
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| 314 | if (attr_string_copy != NULL) free(attr_string_copy); |
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| 315 | abac_free_yap_clause(); |
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| 316 | |
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| 317 | return ret; |
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| 318 | } |
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| 319 | |
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| 320 | #ifdef OLD |
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[5450aeb] | 321 | /** |
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| 322 | * Load an attribute cert. |
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| 323 | * Returns true only if the certificate is valid and is issued by the proper |
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| 324 | * authority. |
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| 325 | */ |
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[0779c99] | 326 | static int _load_attribute_cert(certificate_t *cert, abac_credential_t **cred_ret) { |
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[804a66a] | 327 | ietf_attributes_t *attr_cert = NULL; |
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[1743825] | 328 | abac_role_t *head_role = NULL; |
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| 329 | abac_role_t *tail_role = NULL; |
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[43e3b71] | 330 | abac_id_cert_t *issuer; |
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[342e28f] | 331 | int ret, i; |
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[5450aeb] | 332 | |
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| 333 | // get the attr |
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| 334 | ac_t *ac = (ac_t *)cert; |
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[804a66a] | 335 | attr_cert = ac->get_groups(ac); |
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[0779c99] | 336 | if (attr_cert == NULL) { |
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| 337 | ret = ABAC_CERT_INVALID; |
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| 338 | goto error; |
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| 339 | } |
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[5450aeb] | 340 | |
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[804a66a] | 341 | char *attr_string = attr_cert->get_string(attr_cert); |
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[0779c99] | 342 | if (attr_string == NULL) { |
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| 343 | ret = ABAC_CERT_INVALID; |
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| 344 | goto error; |
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| 345 | } |
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[5450aeb] | 346 | |
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[53e540d] | 347 | printf("YYY-->attr_string(%s)%d\n", attr_string, strlen(attr_string)); |
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| 348 | |
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[5450aeb] | 349 | // split into head/tail parts |
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[342e28f] | 350 | char *head_tail[2]; |
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[9a411d7] | 351 | abac_split(attr_string, " <- ", head_tail, &ret); |
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[0779c99] | 352 | if (ret != 2) { |
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| 353 | ret = ABAC_CERT_INVALID; |
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| 354 | goto error; |
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| 355 | } |
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[5450aeb] | 356 | |
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| 357 | // must be a role |
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[342e28f] | 358 | head_role = abac_role_from_string(head_tail[0]); |
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[5450aeb] | 359 | if (head_role == NULL) goto error; |
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[0779c99] | 360 | if (!abac_role_is_role(head_role)) { |
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| 361 | ret = ABAC_CERT_INVALID; |
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| 362 | goto error; |
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| 363 | } |
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[5450aeb] | 364 | |
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[9a411d7] | 365 | // make sure the tail's valid too |
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| 366 | tail_role = abac_role_from_string(head_tail[1]); |
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| 367 | if (tail_role == NULL) { |
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| 368 | ret = ABAC_CERT_INVALID; |
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| 369 | goto error; |
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[0779c99] | 370 | } |
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[5450aeb] | 371 | |
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| 372 | // get the issuer based on keyid |
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[dcc1a8e] | 373 | char *principal = abac_role_principal(head_role); |
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[5450aeb] | 374 | HASH_FIND_STR(id_certs, principal, issuer); |
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[0779c99] | 375 | if (issuer == NULL) { |
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| 376 | ret = ABAC_CERT_MISSING_ISSUER; |
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| 377 | goto error; |
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| 378 | } |
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[5450aeb] | 379 | |
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[53e540d] | 380 | printf("YYY principal found is %s\n", principal); |
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| 381 | |
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[5450aeb] | 382 | // make sure the issuer's signed it |
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[0779c99] | 383 | ret = _verify_signature(issuer->cert, cert); |
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| 384 | if (!ret) { |
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| 385 | ret = ABAC_CERT_BAD_SIG; |
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| 386 | goto error; |
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| 387 | } |
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[5450aeb] | 388 | |
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| 389 | // at this point we know we have a good attribute cert |
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[401a054] | 390 | abac_credential_t *cred = abac_xmalloc(sizeof(abac_credential_t)); |
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| 391 | cred->head = head_role; |
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| 392 | cred->tail = tail_role; |
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| 393 | cred->cert = cert; |
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| 394 | cred->issuer = issuer->cert->get_ref(issuer->cert); |
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[fbb591e] | 395 | cred->refcount = 1; |
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[0779c99] | 396 | *cred_ret = cred; |
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[5450aeb] | 397 | |
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| 398 | // free up some crap |
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[804a66a] | 399 | attr_cert->destroy(attr_cert); |
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[5450aeb] | 400 | |
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[0779c99] | 401 | return ABAC_CERT_SUCCESS; |
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[5450aeb] | 402 | |
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| 403 | error: |
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| 404 | if (cert != NULL) cert->destroy(cert); |
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[804a66a] | 405 | if (attr_cert != NULL) attr_cert->destroy(attr_cert); |
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[dcc1a8e] | 406 | if (head_role != NULL) abac_role_free(head_role); |
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| 407 | if (tail_role != NULL) abac_role_free(tail_role); |
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[5450aeb] | 408 | |
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[0779c99] | 409 | return ret; |
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[5450aeb] | 410 | } |
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[53e540d] | 411 | #endif |
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[5f99fbc] | 412 | |
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[e898049] | 413 | /** |
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| 414 | * Load an attribute cert from a file. |
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| 415 | */ |
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[0779c99] | 416 | int abac_verifier_load_attribute_cert_file(char *filename, abac_credential_t **cred) { |
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[e898049] | 417 | // load the cert |
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| 418 | certificate_t *cert = lib->creds->create( |
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| 419 | lib->creds, CRED_CERTIFICATE, CERT_X509_AC, |
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| 420 | BUILD_FROM_FILE, filename, |
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| 421 | BUILD_END |
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| 422 | ); |
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| 423 | if (cert == NULL) |
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[0779c99] | 424 | return ABAC_CERT_INVALID; |
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| 425 | return _load_attribute_cert(cert, cred); |
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[e898049] | 426 | } |
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| 427 | |
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| 428 | /** |
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| 429 | * Load an attribute cert from a chunk. |
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| 430 | */ |
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[0779c99] | 431 | int abac_verifier_load_attribute_cert_chunk(chunk_t chunk, abac_credential_t **cred) { |
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[e898049] | 432 | // load the cert |
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| 433 | certificate_t *cert = lib->creds->create( |
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| 434 | lib->creds, CRED_CERTIFICATE, CERT_X509_AC, |
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| 435 | BUILD_BLOB_ASN1_DER, chunk, |
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| 436 | BUILD_END |
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| 437 | ); |
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| 438 | if (cert == NULL) |
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[0779c99] | 439 | return ABAC_CERT_INVALID; |
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| 440 | return _load_attribute_cert(cert, cred); |
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[e898049] | 441 | } |
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| 442 | |
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[5f99fbc] | 443 | /** |
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| 444 | * Return the head role. |
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| 445 | */ |
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[401a054] | 446 | abac_role_t *abac_credential_head(abac_credential_t *cred) { |
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| 447 | return cred->head; |
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[5f99fbc] | 448 | } |
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| 449 | |
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| 450 | /** |
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| 451 | * Return the tail role. |
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| 452 | */ |
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[401a054] | 453 | abac_role_t *abac_credential_tail(abac_credential_t *cred) { |
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| 454 | return cred->tail; |
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[5f99fbc] | 455 | } |
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[85cdf53] | 456 | |
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| 457 | /** |
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| 458 | * Return the encoding of the attribute cert. |
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| 459 | */ |
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[401a054] | 460 | abac_chunk_t abac_credential_attribute_cert(abac_credential_t *cred) { |
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| 461 | chunk_t encoding = cred->cert->get_encoding(cred->cert); |
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[9efbfbf] | 462 | abac_chunk_t ret = { encoding.ptr, encoding.len }; |
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| 463 | return ret; |
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[85cdf53] | 464 | } |
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| 465 | |
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| 466 | /** |
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| 467 | * Return the encoding of the issuer cert. |
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| 468 | */ |
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[401a054] | 469 | abac_chunk_t abac_credential_issuer_cert(abac_credential_t *cred) { |
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| 470 | chunk_t encoding = cred->issuer->get_encoding(cred->issuer); |
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[9efbfbf] | 471 | abac_chunk_t ret = { encoding.ptr, encoding.len }; |
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| 472 | return ret; |
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[85cdf53] | 473 | } |
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[186cb75] | 474 | |
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[53e540d] | 475 | /** |
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| 476 | * Return the clause of the cert |
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| 477 | */ |
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| 478 | char * abac_credential_clause(abac_credential_t *cred) { |
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| 479 | return cred->clause; |
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| 480 | } |
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| 481 | |
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[186cb75] | 482 | /** |
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[fbb591e] | 483 | * Increase the ref count of a credential. |
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[186cb75] | 484 | */ |
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[401a054] | 485 | abac_credential_t *abac_credential_dup(abac_credential_t *cred) { |
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| 486 | assert(cred != NULL); |
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[186cb75] | 487 | |
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[fbb591e] | 488 | ++cred->refcount; |
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| 489 | return cred; |
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[186cb75] | 490 | } |
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| 491 | |
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[53e540d] | 492 | /** |
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| 493 | * lookup for a credential. |
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| 494 | */ |
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| 495 | abac_credential_t *abac_credential_lookup(char* cred_string) { |
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| 496 | abac_str_cred_t *str_cred; |
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| 497 | HASH_FIND_STR(str_creds, cred_string, str_cred); |
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| 498 | if (str_cred == NULL) { |
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| 499 | return NULL; |
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| 500 | } |
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| 501 | return str_cred->cred; |
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| 502 | } |
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| 503 | |
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[186cb75] | 504 | /** |
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[fbb591e] | 505 | * Decrease the reference count of a credential, freeing it when it reaches 0. |
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[186cb75] | 506 | */ |
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[401a054] | 507 | void abac_credential_free(abac_credential_t *cred) { |
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| 508 | if (cred == NULL) |
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[186cb75] | 509 | return; |
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| 510 | |
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[fbb591e] | 511 | --cred->refcount; |
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| 512 | if (cred->refcount > 0) |
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| 513 | return; |
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| 514 | |
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[401a054] | 515 | abac_role_free(cred->head); |
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| 516 | abac_role_free(cred->tail); |
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| 517 | cred->cert->destroy(cred->cert); |
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| 518 | cred->issuer->destroy(cred->issuer); // reference counted |
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[53e540d] | 519 | if (cred->clause) |
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| 520 | free(cred->clause); |
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[186cb75] | 521 | |
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[401a054] | 522 | free(cred); |
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[186cb75] | 523 | } |
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[53e540d] | 524 | |
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| 525 | /* retrieve the cn that is associated with this sha_string */ |
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| 526 | char *abac_cn_with_sha(char *sha_string) { |
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| 527 | |
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| 528 | // get the issuer based on keyid |
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| 529 | abac_id_cert_t *id_cert; |
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| 530 | HASH_FIND_STR(id_certs, sha_string, id_cert); |
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| 531 | if (id_cert == NULL) { |
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| 532 | return NULL; |
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| 533 | } |
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| 534 | return id_cert->cn; |
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| 535 | } |
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| 536 | |
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| 537 | /* retrieve the cn that is associated with the principal of this role */ |
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| 538 | char *abac_cn_with_role(abac_role_t *head_role) { |
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| 539 | |
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| 540 | // get the issuer based on keyid |
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| 541 | char *principal = abac_role_principal(head_role); |
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| 542 | return abac_cn_with_sha(principal); |
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| 543 | } |
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| 544 | |
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