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37 * @page page_keyset Certificate store operations
39 * Type of certificates store:
41 * In memory based format. Doesnt support storing.
43 * FILE supports raw DER certicates and PEM certicates. When PEM is
44 * used the file can contain may certificates and match private
45 * keys. Support storing the certificates. DER format only supports
46 * on certificate and no private key.
48 * Same as FILE, defaulting to PEM encoded certificates.
50 * Same as FILE, defaulting to DER encoded certificates.
55 * Apple Mac OS X KeyChain backed keychain object.
57 * See the library functions here: @ref hx509_keyset
60 struct hx509_certs_data {
62 struct hx509_keyset_ops *ops;
66 static struct hx509_keyset_ops *
67 _hx509_ks_type(hx509_context context, const char *type)
71 for (i = 0; i < context->ks_num_ops; i++)
72 if (strcasecmp(type, context->ks_ops[i]->name) == 0)
73 return context->ks_ops[i];
79 _hx509_ks_register(hx509_context context, struct hx509_keyset_ops *ops)
81 struct hx509_keyset_ops **val;
83 if (_hx509_ks_type(context, ops->name))
86 val = realloc(context->ks_ops,
87 (context->ks_num_ops + 1) * sizeof(context->ks_ops[0]));
90 val[context->ks_num_ops] = ops;
91 context->ks_ops = val;
92 context->ks_num_ops++;
96 * Open or creates a new hx509 certificate store.
98 * @param context A hx509 context
99 * @param name name of the store, format is TYPE:type-specific-string,
100 * if NULL is used the MEMORY store is used.
101 * @param flags list of flags:
102 * - HX509_CERTS_CREATE create a new keystore of the specific TYPE.
103 * - HX509_CERTS_UNPROTECT_ALL fails if any private key failed to be extracted.
104 * @param lock a lock that unlocks the certificates store, use NULL to
105 * select no password/certifictes/prompt lock (see @ref page_lock).
106 * @param certs return pointer, free with hx509_certs_free().
108 * @ingroup hx509_keyset
112 hx509_certs_init(hx509_context context,
113 const char *name, int flags,
114 hx509_lock lock, hx509_certs *certs)
116 struct hx509_keyset_ops *ops;
124 residue = strchr(name, ':');
126 type = malloc(residue - name + 1);
128 strlcpy(type, name, residue - name + 1);
130 if (residue[0] == '\0')
133 type = strdup("MEMORY");
137 hx509_clear_error_string(context);
141 ops = _hx509_ks_type(context, type);
143 hx509_set_error_string(context, 0, ENOENT,
144 "Keyset type %s is not supported", type);
149 c = calloc(1, sizeof(*c));
151 hx509_clear_error_string(context);
157 ret = (*ops->init)(context, c, &c->ops_data, flags, residue, lock);
168 * Write the certificate store to stable storage.
170 * @param context A hx509 context.
171 * @param certs a certificate store to store.
172 * @param flags currently unused, use 0.
173 * @param lock a lock that unlocks the certificates store, use NULL to
174 * select no password/certifictes/prompt lock (see @ref page_lock).
176 * @return Returns an hx509 error code. HX509_UNSUPPORTED_OPERATION if
177 * the certificate store doesn't support the store operation.
179 * @ingroup hx509_keyset
183 hx509_certs_store(hx509_context context,
188 if (certs->ops->store == NULL) {
189 hx509_set_error_string(context, 0, HX509_UNSUPPORTED_OPERATION,
190 "keystore if type %s doesn't support "
193 return HX509_UNSUPPORTED_OPERATION;
196 return (*certs->ops->store)(context, certs, certs->ops_data, flags, lock);
201 _hx509_certs_ref(hx509_certs certs)
206 _hx509_abort("certs refcount == 0 on ref");
207 if (certs->ref == UINT_MAX)
208 _hx509_abort("certs refcount == UINT_MAX on ref");
214 * Free a certificate store.
216 * @param certs certificate store to free.
218 * @ingroup hx509_keyset
222 hx509_certs_free(hx509_certs *certs)
225 if ((*certs)->ref == 0)
226 _hx509_abort("cert refcount == 0 on free");
227 if (--(*certs)->ref > 0)
230 (*(*certs)->ops->free)(*certs, (*certs)->ops_data);
237 * Start the integration
239 * @param context a hx509 context.
240 * @param certs certificate store to iterate over
241 * @param cursor cursor that will keep track of progress, free with
242 * hx509_certs_end_seq().
244 * @return Returns an hx509 error code. HX509_UNSUPPORTED_OPERATION is
245 * returned if the certificate store doesn't support the iteration
248 * @ingroup hx509_keyset
252 hx509_certs_start_seq(hx509_context context,
254 hx509_cursor *cursor)
258 if (certs->ops->iter_start == NULL) {
259 hx509_set_error_string(context, 0, HX509_UNSUPPORTED_OPERATION,
260 "Keyset type %s doesn't support iteration",
262 return HX509_UNSUPPORTED_OPERATION;
265 ret = (*certs->ops->iter_start)(context, certs, certs->ops_data, cursor);
273 * Get next ceritificate from the certificate keystore pointed out by
276 * @param context a hx509 context.
277 * @param certs certificate store to iterate over.
278 * @param cursor cursor that keeps track of progress.
279 * @param cert return certificate next in store, NULL if the store
280 * contains no more certificates. Free with hx509_cert_free().
282 * @return Returns an hx509 error code.
284 * @ingroup hx509_keyset
288 hx509_certs_next_cert(hx509_context context,
294 return (*certs->ops->iter)(context, certs, certs->ops_data, cursor, cert);
298 * End the iteration over certificates.
300 * @param context a hx509 context.
301 * @param certs certificate store to iterate over.
302 * @param cursor cursor that will keep track of progress, freed.
304 * @return Returns an hx509 error code.
306 * @ingroup hx509_keyset
310 hx509_certs_end_seq(hx509_context context,
314 (*certs->ops->iter_end)(context, certs, certs->ops_data, cursor);
319 * Iterate over all certificates in a keystore and call an function
322 * @param context a hx509 context.
323 * @param certs certificate store to iterate over.
324 * @param func function to call for each certificate. The function
325 * should return non-zero to abort the iteration, that value is passed
326 * back to te caller of hx509_certs_iter().
327 * @param ctx context variable that will passed to the function.
329 * @return Returns an hx509 error code.
331 * @ingroup hx509_keyset
335 hx509_certs_iter(hx509_context context,
337 int (*func)(hx509_context, void *, hx509_cert),
344 ret = hx509_certs_start_seq(context, certs, &cursor);
349 ret = hx509_certs_next_cert(context, certs, cursor, &c);
356 ret = (*func)(context, ctx, c);
362 hx509_certs_end_seq(context, certs, cursor);
369 * Function to use to hx509_certs_iter() as a function argument, the
370 * ctx variable to hx509_certs_iter() should be a FILE file descriptor.
372 * @param context a hx509 context.
373 * @param ctx used by hx509_certs_iter().
374 * @param c a certificate
376 * @return Returns an hx509 error code.
378 * @ingroup hx509_keyset
382 hx509_ci_print_names(hx509_context context, void *ctx, hx509_cert c)
388 cert = _hx509_get_cert(c);
390 _hx509_name_from_Name(&cert->tbsCertificate.subject, &n);
391 hx509_name_to_string(n, &s);
393 _hx509_name_from_Name(&cert->tbsCertificate.issuer, &n);
394 hx509_name_to_string(n, &i);
396 fprintf(ctx, "subject: %s\nissuer: %s\n", s, i);
403 * Add a certificate to the certificiate store.
405 * The receiving keyset certs will either increase reference counter
406 * of the cert or make a deep copy, either way, the caller needs to
407 * free the cert itself.
409 * @param context a hx509 context.
410 * @param certs certificate store to add the certificate to.
411 * @param cert certificate to add.
413 * @return Returns an hx509 error code.
415 * @ingroup hx509_keyset
419 hx509_certs_add(hx509_context context, hx509_certs certs, hx509_cert cert)
421 if (certs->ops->add == NULL) {
422 hx509_set_error_string(context, 0, ENOENT,
423 "Keyset type %s doesn't support add operation",
428 return (*certs->ops->add)(context, certs, certs->ops_data, cert);
432 * Find a certificate matching the query.
434 * @param context a hx509 context.
435 * @param certs certificate store to search.
436 * @param q query allocated with @ref hx509_query functions.
437 * @param r return certificate (or NULL on error), should be freed
438 * with hx509_cert_free().
440 * @return Returns an hx509 error code.
442 * @ingroup hx509_keyset
446 hx509_certs_find(hx509_context context,
448 const hx509_query *q,
457 _hx509_query_statistic(context, 0, q);
459 if (certs->ops->query)
460 return (*certs->ops->query)(context, certs, certs->ops_data, q, r);
462 ret = hx509_certs_start_seq(context, certs, &cursor);
468 ret = hx509_certs_next_cert(context, certs, cursor, &c);
473 if (_hx509_query_match_cert(context, q, c)) {
480 hx509_certs_end_seq(context, certs, cursor);
484 * Return HX509_CERT_NOT_FOUND if no certificate in certs matched
488 hx509_clear_error_string(context);
489 return HX509_CERT_NOT_FOUND;
496 * Filter certificate matching the query.
498 * @param context a hx509 context.
499 * @param certs certificate store to search.
500 * @param q query allocated with @ref hx509_query functions.
501 * @param result the filtered certificate store, caller must free with
502 * hx509_certs_free().
504 * @return Returns an hx509 error code.
506 * @ingroup hx509_keyset
510 hx509_certs_filter(hx509_context context,
512 const hx509_query *q,
519 _hx509_query_statistic(context, 0, q);
521 ret = hx509_certs_init(context, "MEMORY:filter-certs", 0,
526 ret = hx509_certs_start_seq(context, certs, &cursor);
528 hx509_certs_free(result);
534 ret = hx509_certs_next_cert(context, certs, cursor, &c);
539 if (_hx509_query_match_cert(context, q, c)) {
540 hx509_certs_add(context, *result, c);
546 hx509_certs_end_seq(context, certs, cursor);
548 hx509_certs_free(result);
553 * Return HX509_CERT_NOT_FOUND if no certificate in certs matched
557 hx509_certs_free(result);
558 hx509_clear_error_string(context);
559 return HX509_CERT_NOT_FOUND;
567 certs_merge_func(hx509_context context, void *ctx, hx509_cert c)
569 return hx509_certs_add(context, (hx509_certs)ctx, c);
573 * Merge a certificate store into another. The from store is keep
576 * @param context a hx509 context.
577 * @param to the store to merge into.
578 * @param from the store to copy the object from.
580 * @return Returns an hx509 error code.
582 * @ingroup hx509_keyset
586 hx509_certs_merge(hx509_context context, hx509_certs to, hx509_certs from)
590 return hx509_certs_iter(context, from, certs_merge_func, to);
594 * Same a hx509_certs_merge() but use a lock and name to describe the
597 * @param context a hx509 context.
598 * @param to the store to merge into.
599 * @param lock a lock that unlocks the certificates store, use NULL to
600 * select no password/certifictes/prompt lock (see @ref page_lock).
601 * @param name name of the source store
603 * @return Returns an hx509 error code.
605 * @ingroup hx509_keyset
609 hx509_certs_append(hx509_context context,
617 ret = hx509_certs_init(context, name, 0, lock, &s);
620 ret = hx509_certs_merge(context, to, s);
621 hx509_certs_free(&s);
626 * Get one random certificate from the certificate store.
628 * @param context a hx509 context.
629 * @param certs a certificate store to get the certificate from.
630 * @param c return certificate, should be freed with hx509_cert_free().
632 * @return Returns an hx509 error code.
634 * @ingroup hx509_keyset
638 hx509_get_one_cert(hx509_context context, hx509_certs certs, hx509_cert *c)
645 ret = hx509_certs_start_seq(context, certs, &cursor);
649 ret = hx509_certs_next_cert(context, certs, cursor, c);
653 hx509_certs_end_seq(context, certs, cursor);
658 certs_info_stdio(void *ctx, const char *str)
661 fprintf(f, "%s\n", str);
666 * Print some info about the certificate store.
668 * @param context a hx509 context.
669 * @param certs certificate store to print information about.
670 * @param func function that will get each line of the information, if
671 * NULL is used the data is printed on a FILE descriptor that should
672 * be passed in ctx, if ctx also is NULL, stdout is used.
673 * @param ctx parameter to func.
675 * @return Returns an hx509 error code.
677 * @ingroup hx509_keyset
681 hx509_certs_info(hx509_context context,
683 int (*func)(void *, const char *),
687 func = certs_info_stdio;
691 if (certs->ops->printinfo == NULL) {
692 (*func)(ctx, "No info function for certs");
695 return (*certs->ops->printinfo)(context, certs, certs->ops_data,
700 _hx509_pi_printf(int (*func)(void *, const char *), void *ctx,
701 const char *fmt, ...)
707 vasprintf(&str, fmt, ap);
716 _hx509_certs_keys_get(hx509_context context,
718 hx509_private_key **keys)
720 if (certs->ops->getkeys == NULL) {
724 return (*certs->ops->getkeys)(context, certs, certs->ops_data, keys);
728 _hx509_certs_keys_add(hx509_context context,
730 hx509_private_key key)
732 if (certs->ops->addkey == NULL) {
733 hx509_set_error_string(context, 0, EINVAL,
734 "keystore if type %s doesn't support "
739 return (*certs->ops->addkey)(context, certs, certs->ops_data, key);
744 _hx509_certs_keys_free(hx509_context context,
745 hx509_private_key *keys)
748 for (i = 0; keys[i]; i++)
749 _hx509_private_key_free(&keys[i]);