1 /* $OpenBSD: ssh-pkcs11.c,v 1.17 2015/02/03 08:07:20 deraadt Exp $ */
2 /*
3 * Copyright (c) 2010 Markus Friedl. All rights reserved.
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include "includes.h"
19
20 #ifdef ENABLE_PKCS11
21
22 #include <sys/types.h>
23 #ifdef HAVE_SYS_TIME_H
24 # include <sys/time.h>
25 #endif
26 #include <stdarg.h>
27 #include <stdio.h>
28
29 #include <string.h>
30 #include <dlfcn.h>
31
32 #include "openbsd-compat/sys-queue.h"
33
34 #include <openssl/x509.h>
35
36 #define CRYPTOKI_COMPAT
37 #include "pkcs11.h"
38
39 #include "log.h"
40 #include "misc.h"
41 #include "sshkey.h"
42 #include "ssh-pkcs11.h"
43 #include "xmalloc.h"
44
45 struct pkcs11_slotinfo {
46 CK_TOKEN_INFO token;
47 CK_SESSION_HANDLE session;
48 int logged_in;
49 };
50
51 struct pkcs11_provider {
52 char *name;
53 void *handle;
54 CK_FUNCTION_LIST *function_list;
55 CK_INFO info;
56 CK_ULONG nslots;
57 CK_SLOT_ID *slotlist;
58 struct pkcs11_slotinfo *slotinfo;
59 int valid;
60 int refcount;
61 TAILQ_ENTRY(pkcs11_provider) next;
62 };
63
64 TAILQ_HEAD(, pkcs11_provider) pkcs11_providers;
65
66 struct pkcs11_key {
67 struct pkcs11_provider *provider;
68 CK_ULONG slotidx;
69 int (*orig_finish)(RSA *rsa);
70 RSA_METHOD rsa_method;
71 char *keyid;
72 int keyid_len;
73 };
74
75 int pkcs11_interactive = 0;
76
77 int
pkcs11_init(int interactive)78 pkcs11_init(int interactive)
79 {
80 pkcs11_interactive = interactive;
81 TAILQ_INIT(&pkcs11_providers);
82 return (0);
83 }
84
85 /*
86 * finalize a provider shared libarary, it's no longer usable.
87 * however, there might still be keys referencing this provider,
88 * so the actuall freeing of memory is handled by pkcs11_provider_unref().
89 * this is called when a provider gets unregistered.
90 */
91 static void
pkcs11_provider_finalize(struct pkcs11_provider * p)92 pkcs11_provider_finalize(struct pkcs11_provider *p)
93 {
94 CK_RV rv;
95 CK_ULONG i;
96
97 debug("pkcs11_provider_finalize: %p refcount %d valid %d",
98 p, p->refcount, p->valid);
99 if (!p->valid)
100 return;
101 for (i = 0; i < p->nslots; i++) {
102 if (p->slotinfo[i].session &&
103 (rv = p->function_list->C_CloseSession(
104 p->slotinfo[i].session)) != CKR_OK)
105 error("C_CloseSession failed: %lu", rv);
106 }
107 if ((rv = p->function_list->C_Finalize(NULL)) != CKR_OK)
108 error("C_Finalize failed: %lu", rv);
109 p->valid = 0;
110 p->function_list = NULL;
111 dlclose(p->handle);
112 }
113
114 /*
115 * remove a reference to the provider.
116 * called when a key gets destroyed or when the provider is unregistered.
117 */
118 static void
pkcs11_provider_unref(struct pkcs11_provider * p)119 pkcs11_provider_unref(struct pkcs11_provider *p)
120 {
121 debug("pkcs11_provider_unref: %p refcount %d", p, p->refcount);
122 if (--p->refcount <= 0) {
123 if (p->valid)
124 error("pkcs11_provider_unref: %p still valid", p);
125 free(p->slotlist);
126 free(p->slotinfo);
127 free(p);
128 }
129 }
130
131 /* unregister all providers, keys might still point to the providers */
132 void
pkcs11_terminate(void)133 pkcs11_terminate(void)
134 {
135 struct pkcs11_provider *p;
136
137 while ((p = TAILQ_FIRST(&pkcs11_providers)) != NULL) {
138 TAILQ_REMOVE(&pkcs11_providers, p, next);
139 pkcs11_provider_finalize(p);
140 pkcs11_provider_unref(p);
141 }
142 }
143
144 /* lookup provider by name */
145 static struct pkcs11_provider *
pkcs11_provider_lookup(char * provider_id)146 pkcs11_provider_lookup(char *provider_id)
147 {
148 struct pkcs11_provider *p;
149
150 TAILQ_FOREACH(p, &pkcs11_providers, next) {
151 debug("check %p %s", p, p->name);
152 if (!strcmp(provider_id, p->name))
153 return (p);
154 }
155 return (NULL);
156 }
157
158 /* unregister provider by name */
159 int
pkcs11_del_provider(char * provider_id)160 pkcs11_del_provider(char *provider_id)
161 {
162 struct pkcs11_provider *p;
163
164 if ((p = pkcs11_provider_lookup(provider_id)) != NULL) {
165 TAILQ_REMOVE(&pkcs11_providers, p, next);
166 pkcs11_provider_finalize(p);
167 pkcs11_provider_unref(p);
168 return (0);
169 }
170 return (-1);
171 }
172
173 /* openssl callback for freeing an RSA key */
174 static int
pkcs11_rsa_finish(RSA * rsa)175 pkcs11_rsa_finish(RSA *rsa)
176 {
177 struct pkcs11_key *k11;
178 int rv = -1;
179
180 if ((k11 = RSA_get_app_data(rsa)) != NULL) {
181 if (k11->orig_finish)
182 rv = k11->orig_finish(rsa);
183 if (k11->provider)
184 pkcs11_provider_unref(k11->provider);
185 free(k11->keyid);
186 free(k11);
187 }
188 return (rv);
189 }
190
191 /* find a single 'obj' for given attributes */
192 static int
pkcs11_find(struct pkcs11_provider * p,CK_ULONG slotidx,CK_ATTRIBUTE * attr,CK_ULONG nattr,CK_OBJECT_HANDLE * obj)193 pkcs11_find(struct pkcs11_provider *p, CK_ULONG slotidx, CK_ATTRIBUTE *attr,
194 CK_ULONG nattr, CK_OBJECT_HANDLE *obj)
195 {
196 CK_FUNCTION_LIST *f;
197 CK_SESSION_HANDLE session;
198 CK_ULONG nfound = 0;
199 CK_RV rv;
200 int ret = -1;
201
202 f = p->function_list;
203 session = p->slotinfo[slotidx].session;
204 if ((rv = f->C_FindObjectsInit(session, attr, nattr)) != CKR_OK) {
205 error("C_FindObjectsInit failed (nattr %lu): %lu", nattr, rv);
206 return (-1);
207 }
208 if ((rv = f->C_FindObjects(session, obj, 1, &nfound)) != CKR_OK ||
209 nfound != 1) {
210 debug("C_FindObjects failed (nfound %lu nattr %lu): %lu",
211 nfound, nattr, rv);
212 } else
213 ret = 0;
214 if ((rv = f->C_FindObjectsFinal(session)) != CKR_OK)
215 error("C_FindObjectsFinal failed: %lu", rv);
216 return (ret);
217 }
218
219 /* openssl callback doing the actual signing operation */
220 static int
pkcs11_rsa_private_encrypt(int flen,const u_char * from,u_char * to,RSA * rsa,int padding)221 pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
222 int padding)
223 {
224 struct pkcs11_key *k11;
225 struct pkcs11_slotinfo *si;
226 CK_FUNCTION_LIST *f;
227 CK_OBJECT_HANDLE obj;
228 CK_ULONG tlen = 0;
229 CK_RV rv;
230 CK_OBJECT_CLASS private_key_class = CKO_PRIVATE_KEY;
231 CK_BBOOL true_val = CK_TRUE;
232 CK_MECHANISM mech = {
233 CKM_RSA_PKCS, NULL_PTR, 0
234 };
235 CK_ATTRIBUTE key_filter[] = {
236 {CKA_CLASS, NULL, sizeof(private_key_class) },
237 {CKA_ID, NULL, 0},
238 {CKA_SIGN, NULL, sizeof(true_val) }
239 };
240 char *pin, prompt[1024];
241 int rval = -1;
242
243 key_filter[0].pValue = &private_key_class;
244 key_filter[2].pValue = &true_val;
245
246 if ((k11 = RSA_get_app_data(rsa)) == NULL) {
247 error("RSA_get_app_data failed for rsa %p", rsa);
248 return (-1);
249 }
250 if (!k11->provider || !k11->provider->valid) {
251 error("no pkcs11 (valid) provider for rsa %p", rsa);
252 return (-1);
253 }
254 f = k11->provider->function_list;
255 si = &k11->provider->slotinfo[k11->slotidx];
256 if ((si->token.flags & CKF_LOGIN_REQUIRED) && !si->logged_in) {
257 if (!pkcs11_interactive) {
258 error("need pin");
259 return (-1);
260 }
261 snprintf(prompt, sizeof(prompt), "Enter PIN for '%s': ",
262 si->token.label);
263 pin = read_passphrase(prompt, RP_ALLOW_EOF);
264 if (pin == NULL)
265 return (-1); /* bail out */
266 rv = f->C_Login(si->session, CKU_USER,
267 (u_char *)pin, strlen(pin));
268 if (rv != CKR_OK && rv != CKR_USER_ALREADY_LOGGED_IN) {
269 free(pin);
270 error("C_Login failed: %lu", rv);
271 return (-1);
272 }
273 free(pin);
274 si->logged_in = 1;
275 }
276 key_filter[1].pValue = k11->keyid;
277 key_filter[1].ulValueLen = k11->keyid_len;
278 /* try to find object w/CKA_SIGN first, retry w/o */
279 if (pkcs11_find(k11->provider, k11->slotidx, key_filter, 3, &obj) < 0 &&
280 pkcs11_find(k11->provider, k11->slotidx, key_filter, 2, &obj) < 0) {
281 error("cannot find private key");
282 } else if ((rv = f->C_SignInit(si->session, &mech, obj)) != CKR_OK) {
283 error("C_SignInit failed: %lu", rv);
284 } else {
285 /* XXX handle CKR_BUFFER_TOO_SMALL */
286 tlen = RSA_size(rsa);
287 rv = f->C_Sign(si->session, (CK_BYTE *)from, flen, to, &tlen);
288 if (rv == CKR_OK)
289 rval = tlen;
290 else
291 error("C_Sign failed: %lu", rv);
292 }
293 return (rval);
294 }
295
296 static int
pkcs11_rsa_private_decrypt(int flen,const u_char * from,u_char * to,RSA * rsa,int padding)297 pkcs11_rsa_private_decrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
298 int padding)
299 {
300 return (-1);
301 }
302
303 /* redirect private key operations for rsa key to pkcs11 token */
304 static int
pkcs11_rsa_wrap(struct pkcs11_provider * provider,CK_ULONG slotidx,CK_ATTRIBUTE * keyid_attrib,RSA * rsa)305 pkcs11_rsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
306 CK_ATTRIBUTE *keyid_attrib, RSA *rsa)
307 {
308 struct pkcs11_key *k11;
309 const RSA_METHOD *def = RSA_get_default_method();
310
311 k11 = xcalloc(1, sizeof(*k11));
312 k11->provider = provider;
313 provider->refcount++; /* provider referenced by RSA key */
314 k11->slotidx = slotidx;
315 /* identify key object on smartcard */
316 k11->keyid_len = keyid_attrib->ulValueLen;
317 k11->keyid = xmalloc(k11->keyid_len);
318 memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len);
319 k11->orig_finish = def->finish;
320 memcpy(&k11->rsa_method, def, sizeof(k11->rsa_method));
321 k11->rsa_method.name = "pkcs11";
322 k11->rsa_method.rsa_priv_enc = pkcs11_rsa_private_encrypt;
323 k11->rsa_method.rsa_priv_dec = pkcs11_rsa_private_decrypt;
324 k11->rsa_method.finish = pkcs11_rsa_finish;
325 RSA_set_method(rsa, &k11->rsa_method);
326 RSA_set_app_data(rsa, k11);
327 return (0);
328 }
329
330 /* remove trailing spaces */
331 static void
rmspace(u_char * buf,size_t len)332 rmspace(u_char *buf, size_t len)
333 {
334 size_t i;
335
336 if (!len)
337 return;
338 for (i = len - 1; i > 0; i--)
339 if (i == len - 1 || buf[i] == ' ')
340 buf[i] = '\0';
341 else
342 break;
343 }
344
345 /*
346 * open a pkcs11 session and login if required.
347 * if pin == NULL we delay login until key use
348 */
349 static int
pkcs11_open_session(struct pkcs11_provider * p,CK_ULONG slotidx,char * pin)350 pkcs11_open_session(struct pkcs11_provider *p, CK_ULONG slotidx, char *pin)
351 {
352 CK_RV rv;
353 CK_FUNCTION_LIST *f;
354 CK_SESSION_HANDLE session;
355 int login_required;
356
357 f = p->function_list;
358 login_required = p->slotinfo[slotidx].token.flags & CKF_LOGIN_REQUIRED;
359 if (pin && login_required && !strlen(pin)) {
360 error("pin required");
361 return (-1);
362 }
363 if ((rv = f->C_OpenSession(p->slotlist[slotidx], CKF_RW_SESSION|
364 CKF_SERIAL_SESSION, NULL, NULL, &session))
365 != CKR_OK) {
366 error("C_OpenSession failed: %lu", rv);
367 return (-1);
368 }
369 if (login_required && pin) {
370 rv = f->C_Login(session, CKU_USER,
371 (u_char *)pin, strlen(pin));
372 if (rv != CKR_OK && rv != CKR_USER_ALREADY_LOGGED_IN) {
373 error("C_Login failed: %lu", rv);
374 if ((rv = f->C_CloseSession(session)) != CKR_OK)
375 error("C_CloseSession failed: %lu", rv);
376 return (-1);
377 }
378 p->slotinfo[slotidx].logged_in = 1;
379 }
380 p->slotinfo[slotidx].session = session;
381 return (0);
382 }
383
384 /*
385 * lookup public keys for token in slot identified by slotidx,
386 * add 'wrapped' public keys to the 'keysp' array and increment nkeys.
387 * keysp points to an (possibly empty) array with *nkeys keys.
388 */
389 static int pkcs11_fetch_keys_filter(struct pkcs11_provider *, CK_ULONG,
390 CK_ATTRIBUTE [], CK_ATTRIBUTE [3], struct sshkey ***, int *)
391 __attribute__((__bounded__(__minbytes__,4, 3 * sizeof(CK_ATTRIBUTE))));
392
393 static int
pkcs11_fetch_keys(struct pkcs11_provider * p,CK_ULONG slotidx,struct sshkey *** keysp,int * nkeys)394 pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx,
395 struct sshkey ***keysp, int *nkeys)
396 {
397 CK_OBJECT_CLASS pubkey_class = CKO_PUBLIC_KEY;
398 CK_OBJECT_CLASS cert_class = CKO_CERTIFICATE;
399 CK_ATTRIBUTE pubkey_filter[] = {
400 { CKA_CLASS, NULL, sizeof(pubkey_class) }
401 };
402 CK_ATTRIBUTE cert_filter[] = {
403 { CKA_CLASS, NULL, sizeof(cert_class) }
404 };
405 CK_ATTRIBUTE pubkey_attribs[] = {
406 { CKA_ID, NULL, 0 },
407 { CKA_MODULUS, NULL, 0 },
408 { CKA_PUBLIC_EXPONENT, NULL, 0 }
409 };
410 CK_ATTRIBUTE cert_attribs[] = {
411 { CKA_ID, NULL, 0 },
412 { CKA_SUBJECT, NULL, 0 },
413 { CKA_VALUE, NULL, 0 }
414 };
415 pubkey_filter[0].pValue = &pubkey_class;
416 cert_filter[0].pValue = &cert_class;
417
418 if (pkcs11_fetch_keys_filter(p, slotidx, pubkey_filter, pubkey_attribs,
419 keysp, nkeys) < 0 ||
420 pkcs11_fetch_keys_filter(p, slotidx, cert_filter, cert_attribs,
421 keysp, nkeys) < 0)
422 return (-1);
423 return (0);
424 }
425
426 static int
pkcs11_key_included(struct sshkey *** keysp,int * nkeys,struct sshkey * key)427 pkcs11_key_included(struct sshkey ***keysp, int *nkeys, struct sshkey *key)
428 {
429 int i;
430
431 for (i = 0; i < *nkeys; i++)
432 if (sshkey_equal(key, (*keysp)[i]))
433 return (1);
434 return (0);
435 }
436
437 static int
pkcs11_fetch_keys_filter(struct pkcs11_provider * p,CK_ULONG slotidx,CK_ATTRIBUTE filter[],CK_ATTRIBUTE attribs[3],struct sshkey *** keysp,int * nkeys)438 pkcs11_fetch_keys_filter(struct pkcs11_provider *p, CK_ULONG slotidx,
439 CK_ATTRIBUTE filter[], CK_ATTRIBUTE attribs[3],
440 struct sshkey ***keysp, int *nkeys)
441 {
442 struct sshkey *key;
443 RSA *rsa;
444 X509 *x509;
445 EVP_PKEY *evp;
446 int i;
447 const u_char *cp;
448 CK_RV rv;
449 CK_OBJECT_HANDLE obj;
450 CK_ULONG nfound;
451 CK_SESSION_HANDLE session;
452 CK_FUNCTION_LIST *f;
453
454 f = p->function_list;
455 session = p->slotinfo[slotidx].session;
456 /* setup a filter the looks for public keys */
457 if ((rv = f->C_FindObjectsInit(session, filter, 1)) != CKR_OK) {
458 error("C_FindObjectsInit failed: %lu", rv);
459 return (-1);
460 }
461 while (1) {
462 /* XXX 3 attributes in attribs[] */
463 for (i = 0; i < 3; i++) {
464 attribs[i].pValue = NULL;
465 attribs[i].ulValueLen = 0;
466 }
467 if ((rv = f->C_FindObjects(session, &obj, 1, &nfound)) != CKR_OK
468 || nfound == 0)
469 break;
470 /* found a key, so figure out size of the attributes */
471 if ((rv = f->C_GetAttributeValue(session, obj, attribs, 3))
472 != CKR_OK) {
473 error("C_GetAttributeValue failed: %lu", rv);
474 continue;
475 }
476 /* check that none of the attributes are zero length */
477 if (attribs[0].ulValueLen == 0 ||
478 attribs[1].ulValueLen == 0 ||
479 attribs[2].ulValueLen == 0) {
480 continue;
481 }
482 /* allocate buffers for attributes */
483 for (i = 0; i < 3; i++)
484 attribs[i].pValue = xmalloc(attribs[i].ulValueLen);
485 /*
486 * retrieve ID, modulus and public exponent of RSA key,
487 * or ID, subject and value for certificates.
488 */
489 rsa = NULL;
490 if ((rv = f->C_GetAttributeValue(session, obj, attribs, 3))
491 != CKR_OK) {
492 error("C_GetAttributeValue failed: %lu", rv);
493 } else if (attribs[1].type == CKA_MODULUS ) {
494 if ((rsa = RSA_new()) == NULL) {
495 error("RSA_new failed");
496 } else {
497 rsa->n = BN_bin2bn(attribs[1].pValue,
498 attribs[1].ulValueLen, NULL);
499 rsa->e = BN_bin2bn(attribs[2].pValue,
500 attribs[2].ulValueLen, NULL);
501 }
502 } else {
503 cp = attribs[2].pValue;
504 if ((x509 = X509_new()) == NULL) {
505 error("X509_new failed");
506 } else if (d2i_X509(&x509, &cp, attribs[2].ulValueLen)
507 == NULL) {
508 error("d2i_X509 failed");
509 } else if ((evp = X509_get_pubkey(x509)) == NULL ||
510 evp->type != EVP_PKEY_RSA ||
511 evp->pkey.rsa == NULL) {
512 debug("X509_get_pubkey failed or no rsa");
513 } else if ((rsa = RSAPublicKey_dup(evp->pkey.rsa))
514 == NULL) {
515 error("RSAPublicKey_dup");
516 }
517 if (x509)
518 X509_free(x509);
519 }
520 if (rsa && rsa->n && rsa->e &&
521 pkcs11_rsa_wrap(p, slotidx, &attribs[0], rsa) == 0) {
522 key = sshkey_new(KEY_UNSPEC);
523 key->rsa = rsa;
524 key->type = KEY_RSA;
525 key->flags |= SSHKEY_FLAG_EXT;
526 if (pkcs11_key_included(keysp, nkeys, key)) {
527 sshkey_free(key);
528 } else {
529 /* expand key array and add key */
530 *keysp = xrealloc(*keysp, *nkeys + 1,
531 sizeof(struct sshkey *));
532 (*keysp)[*nkeys] = key;
533 *nkeys = *nkeys + 1;
534 debug("have %d keys", *nkeys);
535 }
536 } else if (rsa) {
537 RSA_free(rsa);
538 }
539 for (i = 0; i < 3; i++)
540 free(attribs[i].pValue);
541 }
542 if ((rv = f->C_FindObjectsFinal(session)) != CKR_OK)
543 error("C_FindObjectsFinal failed: %lu", rv);
544 return (0);
545 }
546
547 /* register a new provider, fails if provider already exists */
548 int
pkcs11_add_provider(char * provider_id,char * pin,struct sshkey *** keyp)549 pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp)
550 {
551 int nkeys, need_finalize = 0;
552 struct pkcs11_provider *p = NULL;
553 void *handle = NULL;
554 CK_RV (*getfunctionlist)(CK_FUNCTION_LIST **);
555 CK_RV rv;
556 CK_FUNCTION_LIST *f = NULL;
557 CK_TOKEN_INFO *token;
558 CK_ULONG i;
559
560 *keyp = NULL;
561 if (pkcs11_provider_lookup(provider_id) != NULL) {
562 error("provider already registered: %s", provider_id);
563 goto fail;
564 }
565 /* open shared pkcs11-libarary */
566 if ((handle = dlopen(provider_id, RTLD_NOW)) == NULL) {
567 error("dlopen %s failed: %s", provider_id, dlerror());
568 goto fail;
569 }
570 if ((getfunctionlist = dlsym(handle, "C_GetFunctionList")) == NULL) {
571 error("dlsym(C_GetFunctionList) failed: %s", dlerror());
572 goto fail;
573 }
574 p = xcalloc(1, sizeof(*p));
575 p->name = xstrdup(provider_id);
576 p->handle = handle;
577 /* setup the pkcs11 callbacks */
578 if ((rv = (*getfunctionlist)(&f)) != CKR_OK) {
579 error("C_GetFunctionList failed: %lu", rv);
580 goto fail;
581 }
582 p->function_list = f;
583 if ((rv = f->C_Initialize(NULL)) != CKR_OK) {
584 error("C_Initialize failed: %lu", rv);
585 goto fail;
586 }
587 need_finalize = 1;
588 if ((rv = f->C_GetInfo(&p->info)) != CKR_OK) {
589 error("C_GetInfo failed: %lu", rv);
590 goto fail;
591 }
592 rmspace(p->info.manufacturerID, sizeof(p->info.manufacturerID));
593 rmspace(p->info.libraryDescription, sizeof(p->info.libraryDescription));
594 debug("manufacturerID <%s> cryptokiVersion %d.%d"
595 " libraryDescription <%s> libraryVersion %d.%d",
596 p->info.manufacturerID,
597 p->info.cryptokiVersion.major,
598 p->info.cryptokiVersion.minor,
599 p->info.libraryDescription,
600 p->info.libraryVersion.major,
601 p->info.libraryVersion.minor);
602 if ((rv = f->C_GetSlotList(CK_TRUE, NULL, &p->nslots)) != CKR_OK) {
603 error("C_GetSlotList failed: %lu", rv);
604 goto fail;
605 }
606 if (p->nslots == 0) {
607 error("no slots");
608 goto fail;
609 }
610 p->slotlist = xcalloc(p->nslots, sizeof(CK_SLOT_ID));
611 if ((rv = f->C_GetSlotList(CK_TRUE, p->slotlist, &p->nslots))
612 != CKR_OK) {
613 error("C_GetSlotList failed: %lu", rv);
614 goto fail;
615 }
616 p->slotinfo = xcalloc(p->nslots, sizeof(struct pkcs11_slotinfo));
617 p->valid = 1;
618 nkeys = 0;
619 for (i = 0; i < p->nslots; i++) {
620 token = &p->slotinfo[i].token;
621 if ((rv = f->C_GetTokenInfo(p->slotlist[i], token))
622 != CKR_OK) {
623 error("C_GetTokenInfo failed: %lu", rv);
624 continue;
625 }
626 rmspace(token->label, sizeof(token->label));
627 rmspace(token->manufacturerID, sizeof(token->manufacturerID));
628 rmspace(token->model, sizeof(token->model));
629 rmspace(token->serialNumber, sizeof(token->serialNumber));
630 debug("label <%s> manufacturerID <%s> model <%s> serial <%s>"
631 " flags 0x%lx",
632 token->label, token->manufacturerID, token->model,
633 token->serialNumber, token->flags);
634 /* open session, login with pin and retrieve public keys */
635 if (pkcs11_open_session(p, i, pin) == 0)
636 pkcs11_fetch_keys(p, i, keyp, &nkeys);
637 }
638 if (nkeys > 0) {
639 TAILQ_INSERT_TAIL(&pkcs11_providers, p, next);
640 p->refcount++; /* add to provider list */
641 return (nkeys);
642 }
643 error("no keys");
644 /* don't add the provider, since it does not have any keys */
645 fail:
646 if (need_finalize && (rv = f->C_Finalize(NULL)) != CKR_OK)
647 error("C_Finalize failed: %lu", rv);
648 if (p) {
649 free(p->slotlist);
650 free(p->slotinfo);
651 free(p);
652 }
653 if (handle)
654 dlclose(handle);
655 return (-1);
656 }
657
658 #else
659
660 int
pkcs11_init(int interactive)661 pkcs11_init(int interactive)
662 {
663 return (0);
664 }
665
666 void
pkcs11_terminate(void)667 pkcs11_terminate(void)
668 {
669 return;
670 }
671
672 #endif /* ENABLE_PKCS11 */
673