Annotation of src/usr.bin/ssh/ssh-pkcs11.c, Revision 1.45
1.45 ! djm 1: /* $OpenBSD: ssh-pkcs11.c,v 1.44 2019/09/02 00:19:25 djm Exp $ */
1.1 markus 2: /*
3: * Copyright (c) 2010 Markus Friedl. All rights reserved.
1.28 djm 4: * Copyright (c) 2014 Pedro Martelletto. All rights reserved.
1.1 markus 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20: #include <sys/queue.h>
21: #include <stdarg.h>
22: #include <stdio.h>
23:
1.28 djm 24: #include <ctype.h>
1.1 markus 25: #include <string.h>
26: #include <dlfcn.h>
27:
1.28 djm 28: #include <openssl/ecdsa.h>
1.9 markus 29: #include <openssl/x509.h>
1.28 djm 30: #include <openssl/err.h>
1.9 markus 31:
1.1 markus 32: #define CRYPTOKI_COMPAT
33: #include "pkcs11.h"
34:
35: #include "log.h"
36: #include "misc.h"
1.15 djm 37: #include "sshkey.h"
1.1 markus 38: #include "ssh-pkcs11.h"
39: #include "xmalloc.h"
40:
41: struct pkcs11_slotinfo {
42: CK_TOKEN_INFO token;
43: CK_SESSION_HANDLE session;
44: int logged_in;
45: };
46:
47: struct pkcs11_provider {
48: char *name;
49: void *handle;
50: CK_FUNCTION_LIST *function_list;
51: CK_INFO info;
52: CK_ULONG nslots;
53: CK_SLOT_ID *slotlist;
54: struct pkcs11_slotinfo *slotinfo;
55: int valid;
56: int refcount;
57: TAILQ_ENTRY(pkcs11_provider) next;
58: };
59:
60: TAILQ_HEAD(, pkcs11_provider) pkcs11_providers;
61:
62: struct pkcs11_key {
63: struct pkcs11_provider *provider;
64: CK_ULONG slotidx;
65: char *keyid;
66: int keyid_len;
67: };
68:
69: int pkcs11_interactive = 0;
70:
1.28 djm 71: #ifdef HAVE_DLOPEN
72: static void
73: ossl_error(const char *msg)
74: {
1.35 djm 75: unsigned long e;
1.28 djm 76:
1.39 djm 77: error("%s: %s", __func__, msg);
1.35 djm 78: while ((e = ERR_get_error()) != 0)
1.39 djm 79: error("%s: libcrypto error: %.100s", __func__,
1.35 djm 80: ERR_error_string(e, NULL));
1.28 djm 81: }
82: #endif
83:
1.1 markus 84: int
85: pkcs11_init(int interactive)
86: {
87: pkcs11_interactive = interactive;
88: TAILQ_INIT(&pkcs11_providers);
89: return (0);
90: }
91:
92: /*
1.28 djm 93: * finalize a provider shared library, it's no longer usable.
1.1 markus 94: * however, there might still be keys referencing this provider,
1.28 djm 95: * so the actual freeing of memory is handled by pkcs11_provider_unref().
1.1 markus 96: * this is called when a provider gets unregistered.
97: */
98: static void
99: pkcs11_provider_finalize(struct pkcs11_provider *p)
100: {
101: CK_RV rv;
102: CK_ULONG i;
103:
104: debug("pkcs11_provider_finalize: %p refcount %d valid %d",
105: p, p->refcount, p->valid);
106: if (!p->valid)
107: return;
108: for (i = 0; i < p->nslots; i++) {
109: if (p->slotinfo[i].session &&
110: (rv = p->function_list->C_CloseSession(
111: p->slotinfo[i].session)) != CKR_OK)
112: error("C_CloseSession failed: %lu", rv);
113: }
114: if ((rv = p->function_list->C_Finalize(NULL)) != CKR_OK)
115: error("C_Finalize failed: %lu", rv);
116: p->valid = 0;
117: p->function_list = NULL;
1.3 deraadt 118: #ifdef HAVE_DLOPEN
1.1 markus 119: dlclose(p->handle);
1.3 deraadt 120: #endif
1.1 markus 121: }
122:
123: /*
124: * remove a reference to the provider.
125: * called when a key gets destroyed or when the provider is unregistered.
126: */
127: static void
128: pkcs11_provider_unref(struct pkcs11_provider *p)
129: {
130: debug("pkcs11_provider_unref: %p refcount %d", p, p->refcount);
131: if (--p->refcount <= 0) {
132: if (p->valid)
133: error("pkcs11_provider_unref: %p still valid", p);
1.28 djm 134: free(p->name);
1.7 djm 135: free(p->slotlist);
136: free(p->slotinfo);
137: free(p);
1.1 markus 138: }
139: }
140:
141: /* unregister all providers, keys might still point to the providers */
142: void
143: pkcs11_terminate(void)
144: {
145: struct pkcs11_provider *p;
146:
147: while ((p = TAILQ_FIRST(&pkcs11_providers)) != NULL) {
148: TAILQ_REMOVE(&pkcs11_providers, p, next);
149: pkcs11_provider_finalize(p);
150: pkcs11_provider_unref(p);
151: }
152: }
153:
154: /* lookup provider by name */
155: static struct pkcs11_provider *
156: pkcs11_provider_lookup(char *provider_id)
157: {
158: struct pkcs11_provider *p;
159:
160: TAILQ_FOREACH(p, &pkcs11_providers, next) {
161: debug("check %p %s", p, p->name);
162: if (!strcmp(provider_id, p->name))
163: return (p);
164: }
165: return (NULL);
166: }
167:
168: /* unregister provider by name */
169: int
170: pkcs11_del_provider(char *provider_id)
171: {
172: struct pkcs11_provider *p;
173:
174: if ((p = pkcs11_provider_lookup(provider_id)) != NULL) {
175: TAILQ_REMOVE(&pkcs11_providers, p, next);
176: pkcs11_provider_finalize(p);
177: pkcs11_provider_unref(p);
178: return (0);
179: }
180: return (-1);
181: }
182:
1.28 djm 183: #ifdef HAVE_DLOPEN
1.38 djm 184: static RSA_METHOD *rsa_method;
185: static int rsa_idx = 0;
186: static EC_KEY_METHOD *ec_key_method;
187: static int ec_key_idx = 0;
188:
1.34 djm 189: /* release a wrapped object */
190: static void
191: pkcs11_k11_free(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx,
192: long argl, void *argp)
1.1 markus 193: {
1.34 djm 194: struct pkcs11_key *k11 = ptr;
1.1 markus 195:
1.34 djm 196: debug("%s: parent %p ptr %p idx %d", __func__, parent, ptr, idx);
197: if (k11 == NULL)
198: return;
199: if (k11->provider)
200: pkcs11_provider_unref(k11->provider);
201: free(k11->keyid);
202: free(k11);
1.1 markus 203: }
204:
1.5 markus 205: /* find a single 'obj' for given attributes */
206: static int
207: pkcs11_find(struct pkcs11_provider *p, CK_ULONG slotidx, CK_ATTRIBUTE *attr,
208: CK_ULONG nattr, CK_OBJECT_HANDLE *obj)
209: {
210: CK_FUNCTION_LIST *f;
211: CK_SESSION_HANDLE session;
212: CK_ULONG nfound = 0;
213: CK_RV rv;
214: int ret = -1;
215:
216: f = p->function_list;
217: session = p->slotinfo[slotidx].session;
218: if ((rv = f->C_FindObjectsInit(session, attr, nattr)) != CKR_OK) {
219: error("C_FindObjectsInit failed (nattr %lu): %lu", nattr, rv);
220: return (-1);
221: }
222: if ((rv = f->C_FindObjects(session, obj, 1, &nfound)) != CKR_OK ||
223: nfound != 1) {
224: debug("C_FindObjects failed (nfound %lu nattr %lu): %lu",
225: nfound, nattr, rv);
226: } else
227: ret = 0;
228: if ((rv = f->C_FindObjectsFinal(session)) != CKR_OK)
229: error("C_FindObjectsFinal failed: %lu", rv);
230: return (ret);
231: }
232:
1.1 markus 233: static int
1.45 ! djm 234: pkcs11_login_slot(struct pkcs11_provider *provider, struct pkcs11_slotinfo *si,
! 235: CK_USER_TYPE type)
1.40 djm 236: {
237: char *pin = NULL, prompt[1024];
238: CK_RV rv;
239:
1.45 ! djm 240: if (provider == NULL || si == NULL || !provider->valid) {
1.40 djm 241: error("no pkcs11 (valid) provider found");
242: return (-1);
243: }
244:
245: if (!pkcs11_interactive) {
246: error("need pin entry%s",
247: (si->token.flags & CKF_PROTECTED_AUTHENTICATION_PATH) ?
248: " on reader keypad" : "");
249: return (-1);
250: }
251: if (si->token.flags & CKF_PROTECTED_AUTHENTICATION_PATH)
252: verbose("Deferring PIN entry to reader keypad.");
253: else {
254: snprintf(prompt, sizeof(prompt), "Enter PIN for '%s': ",
255: si->token.label);
256: if ((pin = read_passphrase(prompt, RP_ALLOW_EOF)) == NULL) {
257: debug("%s: no pin specified", __func__);
258: return (-1); /* bail out */
259: }
260: }
1.45 ! djm 261: rv = provider->function_list->C_Login(si->session, type, (u_char *)pin,
1.40 djm 262: (pin != NULL) ? strlen(pin) : 0);
263: if (pin != NULL)
264: freezero(pin, strlen(pin));
265: if (rv != CKR_OK && rv != CKR_USER_ALREADY_LOGGED_IN) {
266: error("C_Login failed: %lu", rv);
267: return (-1);
268: }
269: si->logged_in = 1;
270: return (0);
271: }
272:
273: static int
1.45 ! djm 274: pkcs11_login(struct pkcs11_key *k11, CK_USER_TYPE type)
! 275: {
! 276: if (k11 == NULL || k11->provider == NULL || !k11->provider->valid) {
! 277: error("no pkcs11 (valid) provider found");
! 278: return (-1);
! 279: }
! 280:
! 281: return pkcs11_login_slot(k11->provider,
! 282: &k11->provider->slotinfo[k11->slotidx], type);
! 283: }
! 284:
! 285:
! 286: static int
1.40 djm 287: pkcs11_check_obj_bool_attrib(struct pkcs11_key *k11, CK_OBJECT_HANDLE obj,
288: CK_ATTRIBUTE_TYPE type, int *val)
289: {
290: struct pkcs11_slotinfo *si;
291: CK_FUNCTION_LIST *f;
292: CK_BBOOL flag = 0;
293: CK_ATTRIBUTE attr;
294: CK_RV rv;
295:
296: *val = 0;
297:
298: if (!k11->provider || !k11->provider->valid) {
299: error("no pkcs11 (valid) provider found");
300: return (-1);
301: }
302:
303: f = k11->provider->function_list;
304: si = &k11->provider->slotinfo[k11->slotidx];
305:
306: attr.type = type;
307: attr.pValue = &flag;
308: attr.ulValueLen = sizeof(flag);
309:
310: rv = f->C_GetAttributeValue(si->session, obj, &attr, 1);
311: if (rv != CKR_OK) {
312: error("C_GetAttributeValue failed: %lu", rv);
313: return (-1);
314: }
315: *val = flag != 0;
316: debug("%s: provider %p slot %lu object %lu: attrib %lu = %d",
317: __func__, k11->provider, k11->slotidx, obj, type, *val);
318: return (0);
319: }
320:
321: static int
1.28 djm 322: pkcs11_get_key(struct pkcs11_key *k11, CK_MECHANISM_TYPE mech_type)
1.1 markus 323: {
324: struct pkcs11_slotinfo *si;
325: CK_FUNCTION_LIST *f;
1.28 djm 326: CK_OBJECT_HANDLE obj;
327: CK_RV rv;
328: CK_OBJECT_CLASS private_key_class;
329: CK_BBOOL true_val;
330: CK_MECHANISM mech;
331: CK_ATTRIBUTE key_filter[3];
1.40 djm 332: int always_auth = 0;
333: int did_login = 0;
1.1 markus 334:
335: if (!k11->provider || !k11->provider->valid) {
1.28 djm 336: error("no pkcs11 (valid) provider found");
1.1 markus 337: return (-1);
338: }
1.28 djm 339:
1.1 markus 340: f = k11->provider->function_list;
341: si = &k11->provider->slotinfo[k11->slotidx];
1.28 djm 342:
1.1 markus 343: if ((si->token.flags & CKF_LOGIN_REQUIRED) && !si->logged_in) {
1.40 djm 344: if (pkcs11_login(k11, CKU_USER) < 0) {
345: error("login failed");
1.1 markus 346: return (-1);
347: }
1.40 djm 348: did_login = 1;
1.1 markus 349: }
1.28 djm 350:
351: memset(&key_filter, 0, sizeof(key_filter));
352: private_key_class = CKO_PRIVATE_KEY;
353: key_filter[0].type = CKA_CLASS;
354: key_filter[0].pValue = &private_key_class;
355: key_filter[0].ulValueLen = sizeof(private_key_class);
356:
357: key_filter[1].type = CKA_ID;
1.1 markus 358: key_filter[1].pValue = k11->keyid;
359: key_filter[1].ulValueLen = k11->keyid_len;
1.28 djm 360:
361: true_val = CK_TRUE;
362: key_filter[2].type = CKA_SIGN;
363: key_filter[2].pValue = &true_val;
364: key_filter[2].ulValueLen = sizeof(true_val);
365:
1.5 markus 366: /* try to find object w/CKA_SIGN first, retry w/o */
367: if (pkcs11_find(k11->provider, k11->slotidx, key_filter, 3, &obj) < 0 &&
368: pkcs11_find(k11->provider, k11->slotidx, key_filter, 2, &obj) < 0) {
369: error("cannot find private key");
1.28 djm 370: return (-1);
371: }
372:
373: memset(&mech, 0, sizeof(mech));
374: mech.mechanism = mech_type;
375: mech.pParameter = NULL_PTR;
376: mech.ulParameterLen = 0;
377:
378: if ((rv = f->C_SignInit(si->session, &mech, obj)) != CKR_OK) {
1.1 markus 379: error("C_SignInit failed: %lu", rv);
1.28 djm 380: return (-1);
1.40 djm 381: }
382:
383: pkcs11_check_obj_bool_attrib(k11, obj, CKA_ALWAYS_AUTHENTICATE,
384: &always_auth); /* ignore errors here */
385: if (always_auth && !did_login) {
386: debug("%s: always-auth key", __func__);
387: if (pkcs11_login(k11, CKU_CONTEXT_SPECIFIC) < 0) {
388: error("login failed for always-auth key");
389: return (-1);
390: }
1.1 markus 391: }
1.28 djm 392:
393: return (0);
394: }
395:
396: /* openssl callback doing the actual signing operation */
397: static int
398: pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
399: int padding)
400: {
401: struct pkcs11_key *k11;
402: struct pkcs11_slotinfo *si;
403: CK_FUNCTION_LIST *f;
404: CK_ULONG tlen = 0;
405: CK_RV rv;
406: int rval = -1;
407:
1.38 djm 408: if ((k11 = RSA_get_ex_data(rsa, rsa_idx)) == NULL) {
1.33 djm 409: error("RSA_get_ex_data failed for rsa %p", rsa);
1.28 djm 410: return (-1);
411: }
412:
413: if (pkcs11_get_key(k11, CKM_RSA_PKCS) == -1) {
414: error("pkcs11_get_key failed");
415: return (-1);
416: }
417:
418: f = k11->provider->function_list;
419: si = &k11->provider->slotinfo[k11->slotidx];
420: tlen = RSA_size(rsa);
421:
422: /* XXX handle CKR_BUFFER_TOO_SMALL */
423: rv = f->C_Sign(si->session, (CK_BYTE *)from, flen, to, &tlen);
424: if (rv == CKR_OK)
425: rval = tlen;
426: else
427: error("C_Sign failed: %lu", rv);
428:
1.1 markus 429: return (rval);
430: }
431:
432: static int
433: pkcs11_rsa_private_decrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
434: int padding)
435: {
436: return (-1);
437: }
438:
1.33 djm 439: static int
440: pkcs11_rsa_start_wrapper(void)
441: {
442: if (rsa_method != NULL)
443: return (0);
444: rsa_method = RSA_meth_dup(RSA_get_default_method());
445: if (rsa_method == NULL)
446: return (-1);
1.34 djm 447: rsa_idx = RSA_get_ex_new_index(0, "ssh-pkcs11-rsa",
448: NULL, NULL, pkcs11_k11_free);
449: if (rsa_idx == -1)
450: return (-1);
1.33 djm 451: if (!RSA_meth_set1_name(rsa_method, "pkcs11") ||
452: !RSA_meth_set_priv_enc(rsa_method, pkcs11_rsa_private_encrypt) ||
1.34 djm 453: !RSA_meth_set_priv_dec(rsa_method, pkcs11_rsa_private_decrypt)) {
1.33 djm 454: error("%s: setup pkcs11 method failed", __func__);
455: return (-1);
456: }
457: return (0);
458: }
459:
1.1 markus 460: /* redirect private key operations for rsa key to pkcs11 token */
461: static int
462: pkcs11_rsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
463: CK_ATTRIBUTE *keyid_attrib, RSA *rsa)
464: {
465: struct pkcs11_key *k11;
1.33 djm 466:
467: if (pkcs11_rsa_start_wrapper() == -1)
468: return (-1);
1.1 markus 469:
470: k11 = xcalloc(1, sizeof(*k11));
471: k11->provider = provider;
472: provider->refcount++; /* provider referenced by RSA key */
473: k11->slotidx = slotidx;
474: /* identify key object on smartcard */
475: k11->keyid_len = keyid_attrib->ulValueLen;
1.22 djm 476: if (k11->keyid_len > 0) {
477: k11->keyid = xmalloc(k11->keyid_len);
478: memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len);
479: }
1.33 djm 480:
1.36 djm 481: RSA_set_method(rsa, rsa_method);
1.34 djm 482: RSA_set_ex_data(rsa, rsa_idx, k11);
1.1 markus 483: return (0);
484: }
485:
1.28 djm 486: /* openssl callback doing the actual signing operation */
487: static ECDSA_SIG *
488: ecdsa_do_sign(const unsigned char *dgst, int dgst_len, const BIGNUM *inv,
489: const BIGNUM *rp, EC_KEY *ec)
490: {
491: struct pkcs11_key *k11;
492: struct pkcs11_slotinfo *si;
493: CK_FUNCTION_LIST *f;
494: CK_ULONG siglen = 0, bnlen;
495: CK_RV rv;
496: ECDSA_SIG *ret = NULL;
497: u_char *sig;
1.37 djm 498: BIGNUM *r = NULL, *s = NULL;
1.28 djm 499:
1.38 djm 500: if ((k11 = EC_KEY_get_ex_data(ec, ec_key_idx)) == NULL) {
1.28 djm 501: ossl_error("EC_KEY_get_key_method_data failed for ec");
502: return (NULL);
503: }
504:
505: if (pkcs11_get_key(k11, CKM_ECDSA) == -1) {
506: error("pkcs11_get_key failed");
507: return (NULL);
508: }
509:
510: f = k11->provider->function_list;
511: si = &k11->provider->slotinfo[k11->slotidx];
512:
513: siglen = ECDSA_size(ec);
514: sig = xmalloc(siglen);
515:
516: /* XXX handle CKR_BUFFER_TOO_SMALL */
517: rv = f->C_Sign(si->session, (CK_BYTE *)dgst, dgst_len, sig, &siglen);
518: if (rv != CKR_OK) {
519: error("C_Sign failed: %lu", rv);
520: goto done;
521: }
1.29 djm 522: if (siglen < 64 || siglen > 132 || siglen % 2) {
523: ossl_error("d2i_ECDSA_SIG failed");
524: goto done;
525: }
526: bnlen = siglen/2;
527: if ((ret = ECDSA_SIG_new()) == NULL) {
528: error("ECDSA_SIG_new failed");
529: goto done;
530: }
1.37 djm 531: if ((r = BN_bin2bn(sig, bnlen, NULL)) == NULL ||
532: (s = BN_bin2bn(sig+bnlen, bnlen, NULL)) == NULL) {
1.29 djm 533: ossl_error("d2i_ECDSA_SIG failed");
534: ECDSA_SIG_free(ret);
535: ret = NULL;
536: goto done;
1.28 djm 537: }
1.37 djm 538: if (!ECDSA_SIG_set0(ret, r, s)) {
539: error("%s: ECDSA_SIG_set0 failed", __func__);
540: ECDSA_SIG_free(ret);
541: ret = NULL;
542: goto done;
543: }
544: r = s = NULL; /* now owned by ret */
545: /* success */
1.28 djm 546: done:
1.37 djm 547: BN_free(r);
548: BN_free(s);
1.28 djm 549: free(sig);
550:
551: return (ret);
552: }
553:
554: static int
555: pkcs11_ecdsa_start_wrapper(void)
556: {
557: int (*orig_sign)(int, const unsigned char *, int, unsigned char *,
558: unsigned int *, const BIGNUM *, const BIGNUM *, EC_KEY *) = NULL;
559:
560: if (ec_key_method != NULL)
561: return (0);
1.32 djm 562: ec_key_idx = EC_KEY_get_ex_new_index(0, "ssh-pkcs11-ecdsa",
563: NULL, NULL, pkcs11_k11_free);
564: if (ec_key_idx == -1)
565: return (-1);
1.28 djm 566: ec_key_method = EC_KEY_METHOD_new(EC_KEY_OpenSSL());
567: if (ec_key_method == NULL)
568: return (-1);
569: EC_KEY_METHOD_get_sign(ec_key_method, &orig_sign, NULL, NULL);
570: EC_KEY_METHOD_set_sign(ec_key_method, orig_sign, NULL, ecdsa_do_sign);
571: return (0);
572: }
573:
574: static int
575: pkcs11_ecdsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
576: CK_ATTRIBUTE *keyid_attrib, EC_KEY *ec)
577: {
578: struct pkcs11_key *k11;
579:
580: if (pkcs11_ecdsa_start_wrapper() == -1)
581: return (-1);
582:
583: k11 = xcalloc(1, sizeof(*k11));
584: k11->provider = provider;
585: provider->refcount++; /* provider referenced by ECDSA key */
586: k11->slotidx = slotidx;
587: /* identify key object on smartcard */
588: k11->keyid_len = keyid_attrib->ulValueLen;
589: k11->keyid = xmalloc(k11->keyid_len);
590: memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len);
591:
1.36 djm 592: EC_KEY_set_method(ec, ec_key_method);
1.32 djm 593: EC_KEY_set_ex_data(ec, ec_key_idx, k11);
1.28 djm 594:
595: return (0);
596: }
597:
1.1 markus 598: /* remove trailing spaces */
599: static void
1.8 djm 600: rmspace(u_char *buf, size_t len)
1.1 markus 601: {
602: size_t i;
603:
604: if (!len)
605: return;
606: for (i = len - 1; i > 0; i--)
607: if (i == len - 1 || buf[i] == ' ')
608: buf[i] = '\0';
609: else
610: break;
611: }
612:
613: /*
614: * open a pkcs11 session and login if required.
615: * if pin == NULL we delay login until key use
616: */
617: static int
1.28 djm 618: pkcs11_open_session(struct pkcs11_provider *p, CK_ULONG slotidx, char *pin,
619: CK_ULONG user)
1.1 markus 620: {
1.41 djm 621: struct pkcs11_slotinfo *si;
622: CK_FUNCTION_LIST *f;
1.1 markus 623: CK_RV rv;
624: CK_SESSION_HANDLE session;
1.41 djm 625: int login_required, have_pinpad, ret;
1.42 djm 626: char prompt[1024], *xpin = NULL;
1.1 markus 627:
628: f = p->function_list;
1.41 djm 629: si = &p->slotinfo[slotidx];
630:
631: have_pinpad = si->token.flags & CKF_PROTECTED_AUTHENTICATION_PATH;
632: login_required = si->token.flags & CKF_LOGIN_REQUIRED;
633:
634: /* fail early before opening session */
1.42 djm 635: if (login_required && !have_pinpad && !pkcs11_interactive &&
636: (pin == NULL || strlen(pin) == 0)) {
1.1 markus 637: error("pin required");
1.28 djm 638: return (-SSH_PKCS11_ERR_PIN_REQUIRED);
1.1 markus 639: }
640: if ((rv = f->C_OpenSession(p->slotlist[slotidx], CKF_RW_SESSION|
1.41 djm 641: CKF_SERIAL_SESSION, NULL, NULL, &session)) != CKR_OK) {
1.1 markus 642: error("C_OpenSession failed: %lu", rv);
643: return (-1);
644: }
1.41 djm 645: if (login_required) {
646: if (have_pinpad && (pin == NULL || strlen(pin) == 0)) {
647: /* defer PIN entry to the reader keypad */
648: rv = f->C_Login(session, CKU_USER, NULL_PTR, 0);
649: } else {
1.42 djm 650: if (pkcs11_interactive) {
651: snprintf(prompt, sizeof(prompt),
652: "Enter PIN for '%s': ", si->token.label);
653: if ((xpin = read_passphrase(prompt,
654: RP_ALLOW_EOF)) == NULL) {
655: debug("%s: no pin specified",
656: __func__);
657: return (-SSH_PKCS11_ERR_PIN_REQUIRED);
658: }
659: pin = xpin;
660: }
1.41 djm 661: rv = f->C_Login(session, CKU_USER,
662: (u_char *)pin, strlen(pin));
1.42 djm 663: if (xpin != NULL)
664: freezero(xpin, strlen(xpin));
1.41 djm 665: }
1.16 djm 666: if (rv != CKR_OK && rv != CKR_USER_ALREADY_LOGGED_IN) {
1.1 markus 667: error("C_Login failed: %lu", rv);
1.28 djm 668: ret = (rv == CKR_PIN_LOCKED) ?
669: -SSH_PKCS11_ERR_PIN_LOCKED :
670: -SSH_PKCS11_ERR_LOGIN_FAIL;
1.1 markus 671: if ((rv = f->C_CloseSession(session)) != CKR_OK)
672: error("C_CloseSession failed: %lu", rv);
1.28 djm 673: return (ret);
1.1 markus 674: }
1.41 djm 675: si->logged_in = 1;
1.1 markus 676: }
1.41 djm 677: si->session = session;
1.1 markus 678: return (0);
679: }
680:
681: static int
1.15 djm 682: pkcs11_key_included(struct sshkey ***keysp, int *nkeys, struct sshkey *key)
1.9 markus 683: {
684: int i;
685:
686: for (i = 0; i < *nkeys; i++)
1.15 djm 687: if (sshkey_equal(key, (*keysp)[i]))
1.9 markus 688: return (1);
689: return (0);
690: }
691:
1.28 djm 692: static struct sshkey *
693: pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
694: CK_OBJECT_HANDLE *obj)
695: {
696: CK_ATTRIBUTE key_attr[3];
697: CK_SESSION_HANDLE session;
698: CK_FUNCTION_LIST *f = NULL;
699: CK_RV rv;
1.30 djm 700: ASN1_OCTET_STRING *octet = NULL;
1.28 djm 701: EC_KEY *ec = NULL;
702: EC_GROUP *group = NULL;
703: struct sshkey *key = NULL;
704: const unsigned char *attrp = NULL;
705: int i;
706: int nid;
707:
708: memset(&key_attr, 0, sizeof(key_attr));
709: key_attr[0].type = CKA_ID;
710: key_attr[1].type = CKA_EC_POINT;
711: key_attr[2].type = CKA_EC_PARAMS;
712:
713: session = p->slotinfo[slotidx].session;
714: f = p->function_list;
715:
716: /* figure out size of the attributes */
717: rv = f->C_GetAttributeValue(session, *obj, key_attr, 3);
718: if (rv != CKR_OK) {
719: error("C_GetAttributeValue failed: %lu", rv);
720: return (NULL);
721: }
722:
723: /*
724: * Allow CKA_ID (always first attribute) to be empty, but
725: * ensure that none of the others are zero length.
726: * XXX assumes CKA_ID is always first.
727: */
728: if (key_attr[1].ulValueLen == 0 ||
729: key_attr[2].ulValueLen == 0) {
730: error("invalid attribute length");
731: return (NULL);
732: }
733:
734: /* allocate buffers for attributes */
735: for (i = 0; i < 3; i++)
736: if (key_attr[i].ulValueLen > 0)
737: key_attr[i].pValue = xcalloc(1, key_attr[i].ulValueLen);
738:
739: /* retrieve ID, public point and curve parameters of EC key */
740: rv = f->C_GetAttributeValue(session, *obj, key_attr, 3);
741: if (rv != CKR_OK) {
742: error("C_GetAttributeValue failed: %lu", rv);
743: goto fail;
744: }
745:
746: ec = EC_KEY_new();
747: if (ec == NULL) {
748: error("EC_KEY_new failed");
749: goto fail;
750: }
751:
752: attrp = key_attr[2].pValue;
753: group = d2i_ECPKParameters(NULL, &attrp, key_attr[2].ulValueLen);
754: if (group == NULL) {
755: ossl_error("d2i_ECPKParameters failed");
756: goto fail;
757: }
758:
759: if (EC_KEY_set_group(ec, group) == 0) {
760: ossl_error("EC_KEY_set_group failed");
761: goto fail;
762: }
763:
764: if (key_attr[1].ulValueLen <= 2) {
765: error("CKA_EC_POINT too small");
766: goto fail;
767: }
768:
1.30 djm 769: attrp = key_attr[1].pValue;
770: octet = d2i_ASN1_OCTET_STRING(NULL, &attrp, key_attr[1].ulValueLen);
771: if (octet == NULL) {
772: ossl_error("d2i_ASN1_OCTET_STRING failed");
773: goto fail;
774: }
775: attrp = octet->data;
776: if (o2i_ECPublicKey(&ec, &attrp, octet->length) == NULL) {
777: ossl_error("o2i_ECPublicKey failed");
778: goto fail;
1.28 djm 779: }
780:
781: nid = sshkey_ecdsa_key_to_nid(ec);
782: if (nid < 0) {
783: error("couldn't get curve nid");
784: goto fail;
785: }
786:
787: if (pkcs11_ecdsa_wrap(p, slotidx, &key_attr[0], ec))
788: goto fail;
789:
790: key = sshkey_new(KEY_UNSPEC);
791: if (key == NULL) {
792: error("sshkey_new failed");
793: goto fail;
794: }
795:
796: key->ecdsa = ec;
797: key->ecdsa_nid = nid;
798: key->type = KEY_ECDSA;
799: key->flags |= SSHKEY_FLAG_EXT;
800: ec = NULL; /* now owned by key */
801:
802: fail:
803: for (i = 0; i < 3; i++)
804: free(key_attr[i].pValue);
805: if (ec)
806: EC_KEY_free(ec);
807: if (group)
808: EC_GROUP_free(group);
1.30 djm 809: if (octet)
810: ASN1_OCTET_STRING_free(octet);
1.28 djm 811:
812: return (key);
813: }
814:
815: static struct sshkey *
816: pkcs11_fetch_rsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
817: CK_OBJECT_HANDLE *obj)
818: {
819: CK_ATTRIBUTE key_attr[3];
820: CK_SESSION_HANDLE session;
821: CK_FUNCTION_LIST *f = NULL;
822: CK_RV rv;
823: RSA *rsa = NULL;
824: BIGNUM *rsa_n, *rsa_e;
825: struct sshkey *key = NULL;
826: int i;
827:
828: memset(&key_attr, 0, sizeof(key_attr));
829: key_attr[0].type = CKA_ID;
830: key_attr[1].type = CKA_MODULUS;
831: key_attr[2].type = CKA_PUBLIC_EXPONENT;
832:
833: session = p->slotinfo[slotidx].session;
834: f = p->function_list;
835:
836: /* figure out size of the attributes */
837: rv = f->C_GetAttributeValue(session, *obj, key_attr, 3);
838: if (rv != CKR_OK) {
839: error("C_GetAttributeValue failed: %lu", rv);
840: return (NULL);
841: }
842:
843: /*
844: * Allow CKA_ID (always first attribute) to be empty, but
845: * ensure that none of the others are zero length.
846: * XXX assumes CKA_ID is always first.
847: */
848: if (key_attr[1].ulValueLen == 0 ||
849: key_attr[2].ulValueLen == 0) {
850: error("invalid attribute length");
851: return (NULL);
852: }
853:
854: /* allocate buffers for attributes */
855: for (i = 0; i < 3; i++)
856: if (key_attr[i].ulValueLen > 0)
857: key_attr[i].pValue = xcalloc(1, key_attr[i].ulValueLen);
858:
859: /* retrieve ID, modulus and public exponent of RSA key */
860: rv = f->C_GetAttributeValue(session, *obj, key_attr, 3);
861: if (rv != CKR_OK) {
862: error("C_GetAttributeValue failed: %lu", rv);
863: goto fail;
864: }
865:
866: rsa = RSA_new();
867: if (rsa == NULL) {
868: error("RSA_new failed");
869: goto fail;
870: }
871:
872: rsa_n = BN_bin2bn(key_attr[1].pValue, key_attr[1].ulValueLen, NULL);
873: rsa_e = BN_bin2bn(key_attr[2].pValue, key_attr[2].ulValueLen, NULL);
874: if (rsa_n == NULL || rsa_e == NULL) {
875: error("BN_bin2bn failed");
876: goto fail;
877: }
878: if (!RSA_set0_key(rsa, rsa_n, rsa_e, NULL))
879: fatal("%s: set key", __func__);
880: rsa_n = rsa_e = NULL; /* transferred */
881:
882: if (pkcs11_rsa_wrap(p, slotidx, &key_attr[0], rsa))
883: goto fail;
884:
885: key = sshkey_new(KEY_UNSPEC);
886: if (key == NULL) {
887: error("sshkey_new failed");
888: goto fail;
889: }
890:
891: key->rsa = rsa;
892: key->type = KEY_RSA;
893: key->flags |= SSHKEY_FLAG_EXT;
894: rsa = NULL; /* now owned by key */
895:
896: fail:
897: for (i = 0; i < 3; i++)
898: free(key_attr[i].pValue);
899: RSA_free(rsa);
900:
901: return (key);
902: }
903:
904: static struct sshkey *
905: pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
906: CK_OBJECT_HANDLE *obj)
907: {
908: CK_ATTRIBUTE cert_attr[3];
909: CK_SESSION_HANDLE session;
910: CK_FUNCTION_LIST *f = NULL;
911: CK_RV rv;
912: X509 *x509 = NULL;
913: EVP_PKEY *evp;
914: RSA *rsa = NULL;
915: EC_KEY *ec = NULL;
916: struct sshkey *key = NULL;
917: int i;
918: int nid;
919: const u_char *cp;
920:
921: memset(&cert_attr, 0, sizeof(cert_attr));
922: cert_attr[0].type = CKA_ID;
923: cert_attr[1].type = CKA_SUBJECT;
924: cert_attr[2].type = CKA_VALUE;
925:
926: session = p->slotinfo[slotidx].session;
927: f = p->function_list;
928:
929: /* figure out size of the attributes */
930: rv = f->C_GetAttributeValue(session, *obj, cert_attr, 3);
931: if (rv != CKR_OK) {
932: error("C_GetAttributeValue failed: %lu", rv);
933: return (NULL);
934: }
935:
936: /*
937: * Allow CKA_ID (always first attribute) to be empty, but
938: * ensure that none of the others are zero length.
939: * XXX assumes CKA_ID is always first.
940: */
941: if (cert_attr[1].ulValueLen == 0 ||
942: cert_attr[2].ulValueLen == 0) {
943: error("invalid attribute length");
944: return (NULL);
945: }
946:
947: /* allocate buffers for attributes */
948: for (i = 0; i < 3; i++)
949: if (cert_attr[i].ulValueLen > 0)
950: cert_attr[i].pValue = xcalloc(1, cert_attr[i].ulValueLen);
951:
952: /* retrieve ID, subject and value of certificate */
953: rv = f->C_GetAttributeValue(session, *obj, cert_attr, 3);
954: if (rv != CKR_OK) {
955: error("C_GetAttributeValue failed: %lu", rv);
956: goto fail;
957: }
958:
959: x509 = X509_new();
960: if (x509 == NULL) {
961: error("x509_new failed");
962: goto fail;
963: }
964:
965: cp = cert_attr[2].pValue;
966: if (d2i_X509(&x509, &cp, cert_attr[2].ulValueLen) == NULL) {
967: error("d2i_x509 failed");
968: goto fail;
969: }
970:
971: evp = X509_get_pubkey(x509);
972: if (evp == NULL) {
973: error("X509_get_pubkey failed");
974: goto fail;
975: }
976:
977: if (EVP_PKEY_base_id(evp) == EVP_PKEY_RSA) {
978: if (EVP_PKEY_get0_RSA(evp) == NULL) {
979: error("invalid x509; no rsa key");
980: goto fail;
981: }
982: if ((rsa = RSAPublicKey_dup(EVP_PKEY_get0_RSA(evp))) == NULL) {
983: error("RSAPublicKey_dup failed");
984: goto fail;
985: }
986:
987: if (pkcs11_rsa_wrap(p, slotidx, &cert_attr[0], rsa))
988: goto fail;
989:
990: key = sshkey_new(KEY_UNSPEC);
991: if (key == NULL) {
992: error("sshkey_new failed");
993: goto fail;
994: }
995:
996: key->rsa = rsa;
997: key->type = KEY_RSA;
998: key->flags |= SSHKEY_FLAG_EXT;
999: rsa = NULL; /* now owned by key */
1000: } else if (EVP_PKEY_base_id(evp) == EVP_PKEY_EC) {
1.31 djm 1001: if (EVP_PKEY_get0_EC_KEY(evp) == NULL) {
1.28 djm 1002: error("invalid x509; no ec key");
1003: goto fail;
1004: }
1.31 djm 1005: if ((ec = EC_KEY_dup(EVP_PKEY_get0_EC_KEY(evp))) == NULL) {
1.28 djm 1006: error("EC_KEY_dup failed");
1007: goto fail;
1008: }
1009:
1010: nid = sshkey_ecdsa_key_to_nid(ec);
1011: if (nid < 0) {
1012: error("couldn't get curve nid");
1013: goto fail;
1014: }
1015:
1016: if (pkcs11_ecdsa_wrap(p, slotidx, &cert_attr[0], ec))
1017: goto fail;
1018:
1019: key = sshkey_new(KEY_UNSPEC);
1020: if (key == NULL) {
1021: error("sshkey_new failed");
1022: goto fail;
1023: }
1024:
1025: key->ecdsa = ec;
1026: key->ecdsa_nid = nid;
1027: key->type = KEY_ECDSA;
1028: key->flags |= SSHKEY_FLAG_EXT;
1029: ec = NULL; /* now owned by key */
1030: } else
1031: error("unknown certificate key type");
1032:
1033: fail:
1034: for (i = 0; i < 3; i++)
1035: free(cert_attr[i].pValue);
1036: X509_free(x509);
1037: RSA_free(rsa);
1038: EC_KEY_free(ec);
1039:
1040: return (key);
1041: }
1042:
1043: #if 0
1.9 markus 1044: static int
1.27 djm 1045: have_rsa_key(const RSA *rsa)
1046: {
1047: const BIGNUM *rsa_n, *rsa_e;
1048:
1049: RSA_get0_key(rsa, &rsa_n, &rsa_e, NULL);
1050: return rsa_n != NULL && rsa_e != NULL;
1051: }
1.28 djm 1052: #endif
1.27 djm 1053:
1.28 djm 1054: /*
1055: * lookup certificates for token in slot identified by slotidx,
1056: * add 'wrapped' public keys to the 'keysp' array and increment nkeys.
1057: * keysp points to an (possibly empty) array with *nkeys keys.
1058: */
1.27 djm 1059: static int
1.28 djm 1060: pkcs11_fetch_certs(struct pkcs11_provider *p, CK_ULONG slotidx,
1.15 djm 1061: struct sshkey ***keysp, int *nkeys)
1.1 markus 1062: {
1.28 djm 1063: struct sshkey *key = NULL;
1064: CK_OBJECT_CLASS key_class;
1065: CK_ATTRIBUTE key_attr[1];
1066: CK_SESSION_HANDLE session;
1067: CK_FUNCTION_LIST *f = NULL;
1068: CK_RV rv;
1069: CK_OBJECT_HANDLE obj;
1070: CK_ULONG n = 0;
1071: int ret = -1;
1072:
1073: memset(&key_attr, 0, sizeof(key_attr));
1074: memset(&obj, 0, sizeof(obj));
1075:
1076: key_class = CKO_CERTIFICATE;
1077: key_attr[0].type = CKA_CLASS;
1078: key_attr[0].pValue = &key_class;
1079: key_attr[0].ulValueLen = sizeof(key_class);
1.1 markus 1080:
1.28 djm 1081: session = p->slotinfo[slotidx].session;
1.1 markus 1082: f = p->function_list;
1.28 djm 1083:
1084: rv = f->C_FindObjectsInit(session, key_attr, 1);
1085: if (rv != CKR_OK) {
1.1 markus 1086: error("C_FindObjectsInit failed: %lu", rv);
1.28 djm 1087: goto fail;
1.1 markus 1088: }
1.28 djm 1089:
1.1 markus 1090: while (1) {
1.28 djm 1091: CK_CERTIFICATE_TYPE ck_cert_type;
1092:
1093: rv = f->C_FindObjects(session, &obj, 1, &n);
1094: if (rv != CKR_OK) {
1095: error("C_FindObjects failed: %lu", rv);
1096: goto fail;
1.1 markus 1097: }
1.28 djm 1098: if (n == 0)
1.1 markus 1099: break;
1.28 djm 1100:
1101: memset(&ck_cert_type, 0, sizeof(ck_cert_type));
1102: memset(&key_attr, 0, sizeof(key_attr));
1103: key_attr[0].type = CKA_CERTIFICATE_TYPE;
1104: key_attr[0].pValue = &ck_cert_type;
1105: key_attr[0].ulValueLen = sizeof(ck_cert_type);
1106:
1107: rv = f->C_GetAttributeValue(session, obj, key_attr, 1);
1108: if (rv != CKR_OK) {
1.1 markus 1109: error("C_GetAttributeValue failed: %lu", rv);
1.28 djm 1110: goto fail;
1111: }
1112:
1113: switch (ck_cert_type) {
1114: case CKC_X_509:
1115: key = pkcs11_fetch_x509_pubkey(p, slotidx, &obj);
1116: break;
1117: default:
1118: /* XXX print key type? */
1.43 markus 1119: key = NULL;
1.28 djm 1120: error("skipping unsupported certificate type");
1.1 markus 1121: }
1.28 djm 1122:
1123: if (key == NULL) {
1124: error("failed to fetch key");
1.6 markus 1125: continue;
1126: }
1.28 djm 1127:
1128: if (pkcs11_key_included(keysp, nkeys, key)) {
1129: sshkey_free(key);
1130: } else {
1131: /* expand key array and add key */
1132: *keysp = xrecallocarray(*keysp, *nkeys,
1133: *nkeys + 1, sizeof(struct sshkey *));
1134: (*keysp)[*nkeys] = key;
1135: *nkeys = *nkeys + 1;
1136: debug("have %d keys", *nkeys);
1.21 djm 1137: }
1.28 djm 1138: }
1139:
1140: ret = 0;
1141: fail:
1142: rv = f->C_FindObjectsFinal(session);
1143: if (rv != CKR_OK) {
1144: error("C_FindObjectsFinal failed: %lu", rv);
1145: ret = -1;
1146: }
1147:
1148: return (ret);
1149: }
1.21 djm 1150:
1.28 djm 1151: /*
1152: * lookup public keys for token in slot identified by slotidx,
1153: * add 'wrapped' public keys to the 'keysp' array and increment nkeys.
1154: * keysp points to an (possibly empty) array with *nkeys keys.
1155: */
1156: static int
1157: pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx,
1158: struct sshkey ***keysp, int *nkeys)
1159: {
1160: struct sshkey *key = NULL;
1161: CK_OBJECT_CLASS key_class;
1162: CK_ATTRIBUTE key_attr[1];
1163: CK_SESSION_HANDLE session;
1164: CK_FUNCTION_LIST *f = NULL;
1165: CK_RV rv;
1166: CK_OBJECT_HANDLE obj;
1167: CK_ULONG n = 0;
1168: int ret = -1;
1169:
1170: memset(&key_attr, 0, sizeof(key_attr));
1171: memset(&obj, 0, sizeof(obj));
1172:
1173: key_class = CKO_PUBLIC_KEY;
1174: key_attr[0].type = CKA_CLASS;
1175: key_attr[0].pValue = &key_class;
1176: key_attr[0].ulValueLen = sizeof(key_class);
1177:
1178: session = p->slotinfo[slotidx].session;
1179: f = p->function_list;
1180:
1181: rv = f->C_FindObjectsInit(session, key_attr, 1);
1182: if (rv != CKR_OK) {
1183: error("C_FindObjectsInit failed: %lu", rv);
1184: goto fail;
1185: }
1186:
1187: while (1) {
1188: CK_KEY_TYPE ck_key_type;
1189:
1190: rv = f->C_FindObjects(session, &obj, 1, &n);
1191: if (rv != CKR_OK) {
1192: error("C_FindObjects failed: %lu", rv);
1193: goto fail;
1194: }
1195: if (n == 0)
1196: break;
1197:
1198: memset(&ck_key_type, 0, sizeof(ck_key_type));
1199: memset(&key_attr, 0, sizeof(key_attr));
1200: key_attr[0].type = CKA_KEY_TYPE;
1201: key_attr[0].pValue = &ck_key_type;
1202: key_attr[0].ulValueLen = sizeof(ck_key_type);
1203:
1204: rv = f->C_GetAttributeValue(session, obj, key_attr, 1);
1205: if (rv != CKR_OK) {
1.1 markus 1206: error("C_GetAttributeValue failed: %lu", rv);
1.28 djm 1207: goto fail;
1208: }
1209:
1210: switch (ck_key_type) {
1211: case CKK_RSA:
1212: key = pkcs11_fetch_rsa_pubkey(p, slotidx, &obj);
1213: break;
1214: case CKK_ECDSA:
1215: key = pkcs11_fetch_ecdsa_pubkey(p, slotidx, &obj);
1216: break;
1217: default:
1218: /* XXX print key type? */
1.43 markus 1219: key = NULL;
1.28 djm 1220: error("skipping unsupported key type");
1221: }
1222:
1223: if (key == NULL) {
1224: error("failed to fetch key");
1225: continue;
1226: }
1227:
1228: if (pkcs11_key_included(keysp, nkeys, key)) {
1229: sshkey_free(key);
1.1 markus 1230: } else {
1.28 djm 1231: /* expand key array and add key */
1232: *keysp = xrecallocarray(*keysp, *nkeys,
1233: *nkeys + 1, sizeof(struct sshkey *));
1234: (*keysp)[*nkeys] = key;
1235: *nkeys = *nkeys + 1;
1236: debug("have %d keys", *nkeys);
1.1 markus 1237: }
1238: }
1.28 djm 1239:
1240: ret = 0;
1241: fail:
1242: rv = f->C_FindObjectsFinal(session);
1243: if (rv != CKR_OK) {
1.1 markus 1244: error("C_FindObjectsFinal failed: %lu", rv);
1.28 djm 1245: ret = -1;
1246: }
1247:
1248: return (ret);
1249: }
1250:
1251: #ifdef WITH_PKCS11_KEYGEN
1252: #define FILL_ATTR(attr, idx, typ, val, len) \
1253: { (attr[idx]).type=(typ); (attr[idx]).pValue=(val); (attr[idx]).ulValueLen=len; idx++; }
1254:
1255: static struct sshkey *
1256: pkcs11_rsa_generate_private_key(struct pkcs11_provider *p, CK_ULONG slotidx,
1257: char *label, CK_ULONG bits, CK_BYTE keyid, u_int32_t *err)
1258: {
1259: struct pkcs11_slotinfo *si;
1260: char *plabel = label ? label : "";
1261: int npub = 0, npriv = 0;
1262: CK_RV rv;
1263: CK_FUNCTION_LIST *f;
1264: CK_SESSION_HANDLE session;
1265: CK_BBOOL true_val = CK_TRUE, false_val = CK_FALSE;
1266: CK_OBJECT_HANDLE pubKey, privKey;
1267: CK_ATTRIBUTE tpub[16], tpriv[16];
1268: CK_MECHANISM mech = {
1269: CKM_RSA_PKCS_KEY_PAIR_GEN, NULL_PTR, 0
1270: };
1271: CK_BYTE pubExponent[] = {
1272: 0x01, 0x00, 0x01 /* RSA_F4 in bytes */
1273: };
1274:
1275: *err = 0;
1276:
1277: FILL_ATTR(tpub, npub, CKA_TOKEN, &true_val, sizeof(true_val));
1278: FILL_ATTR(tpub, npub, CKA_LABEL, plabel, strlen(plabel));
1279: FILL_ATTR(tpub, npub, CKA_ENCRYPT, &false_val, sizeof(false_val));
1280: FILL_ATTR(tpub, npub, CKA_VERIFY, &true_val, sizeof(true_val));
1281: FILL_ATTR(tpub, npub, CKA_VERIFY_RECOVER, &false_val,
1282: sizeof(false_val));
1283: FILL_ATTR(tpub, npub, CKA_WRAP, &false_val, sizeof(false_val));
1284: FILL_ATTR(tpub, npub, CKA_DERIVE, &false_val, sizeof(false_val));
1285: FILL_ATTR(tpub, npub, CKA_MODULUS_BITS, &bits, sizeof(bits));
1286: FILL_ATTR(tpub, npub, CKA_PUBLIC_EXPONENT, pubExponent,
1287: sizeof(pubExponent));
1288: FILL_ATTR(tpub, npub, CKA_ID, &keyid, sizeof(keyid));
1289:
1290: FILL_ATTR(tpriv, npriv, CKA_TOKEN, &true_val, sizeof(true_val));
1291: FILL_ATTR(tpriv, npriv, CKA_LABEL, plabel, strlen(plabel));
1292: FILL_ATTR(tpriv, npriv, CKA_PRIVATE, &true_val, sizeof(true_val));
1293: FILL_ATTR(tpriv, npriv, CKA_SENSITIVE, &true_val, sizeof(true_val));
1294: FILL_ATTR(tpriv, npriv, CKA_DECRYPT, &false_val, sizeof(false_val));
1295: FILL_ATTR(tpriv, npriv, CKA_SIGN, &true_val, sizeof(true_val));
1296: FILL_ATTR(tpriv, npriv, CKA_SIGN_RECOVER, &false_val,
1297: sizeof(false_val));
1298: FILL_ATTR(tpriv, npriv, CKA_UNWRAP, &false_val, sizeof(false_val));
1299: FILL_ATTR(tpriv, npriv, CKA_DERIVE, &false_val, sizeof(false_val));
1300: FILL_ATTR(tpriv, npriv, CKA_ID, &keyid, sizeof(keyid));
1301:
1302: f = p->function_list;
1303: si = &p->slotinfo[slotidx];
1304: session = si->session;
1305:
1306: if ((rv = f->C_GenerateKeyPair(session, &mech, tpub, npub, tpriv, npriv,
1307: &pubKey, &privKey)) != CKR_OK) {
1308: error("%s: key generation failed: error 0x%lx", __func__, rv);
1309: *err = rv;
1310: return NULL;
1311: }
1312:
1313: return pkcs11_fetch_rsa_pubkey(p, slotidx, &pubKey);
1314: }
1315:
1316: static int
1317: pkcs11_decode_hex(const char *hex, unsigned char **dest, size_t *rlen)
1318: {
1319: size_t i, len;
1320: char ptr[3];
1321:
1322: if (dest)
1323: *dest = NULL;
1324: if (rlen)
1325: *rlen = 0;
1326:
1327: if ((len = strlen(hex)) % 2)
1328: return -1;
1329: len /= 2;
1330:
1331: *dest = xmalloc(len);
1332:
1333: ptr[2] = '\0';
1334: for (i = 0; i < len; i++) {
1335: ptr[0] = hex[2 * i];
1336: ptr[1] = hex[(2 * i) + 1];
1337: if (!isxdigit(ptr[0]) || !isxdigit(ptr[1]))
1338: return -1;
1339: (*dest)[i] = (unsigned char)strtoul(ptr, NULL, 16);
1340: }
1341:
1342: if (rlen)
1343: *rlen = len;
1344:
1345: return 0;
1346: }
1347:
1348: static struct ec_curve_info {
1349: const char *name;
1350: const char *oid;
1351: const char *oid_encoded;
1352: size_t size;
1353: } ec_curve_infos[] = {
1354: {"prime256v1", "1.2.840.10045.3.1.7", "06082A8648CE3D030107", 256},
1355: {"secp384r1", "1.3.132.0.34", "06052B81040022", 384},
1356: {"secp521r1", "1.3.132.0.35", "06052B81040023", 521},
1.35 djm 1357: {NULL, NULL, NULL, 0},
1.28 djm 1358: };
1359:
1360: static struct sshkey *
1361: pkcs11_ecdsa_generate_private_key(struct pkcs11_provider *p, CK_ULONG slotidx,
1362: char *label, CK_ULONG bits, CK_BYTE keyid, u_int32_t *err)
1363: {
1364: struct pkcs11_slotinfo *si;
1365: char *plabel = label ? label : "";
1366: int i;
1367: size_t ecparams_size;
1368: unsigned char *ecparams = NULL;
1369: int npub = 0, npriv = 0;
1370: CK_RV rv;
1371: CK_FUNCTION_LIST *f;
1372: CK_SESSION_HANDLE session;
1373: CK_BBOOL true_val = CK_TRUE, false_val = CK_FALSE;
1374: CK_OBJECT_HANDLE pubKey, privKey;
1375: CK_MECHANISM mech = {
1376: CKM_EC_KEY_PAIR_GEN, NULL_PTR, 0
1377: };
1378: CK_ATTRIBUTE tpub[16], tpriv[16];
1379:
1380: *err = 0;
1381:
1382: for (i = 0; ec_curve_infos[i].name; i++) {
1383: if (ec_curve_infos[i].size == bits)
1384: break;
1385: }
1386: if (!ec_curve_infos[i].name) {
1387: error("%s: invalid key size %lu", __func__, bits);
1388: return NULL;
1389: }
1390: if (pkcs11_decode_hex(ec_curve_infos[i].oid_encoded, &ecparams,
1391: &ecparams_size) == -1) {
1392: error("%s: invalid oid", __func__);
1393: return NULL;
1394: }
1395:
1396: FILL_ATTR(tpub, npub, CKA_TOKEN, &true_val, sizeof(true_val));
1397: FILL_ATTR(tpub, npub, CKA_LABEL, plabel, strlen(plabel));
1398: FILL_ATTR(tpub, npub, CKA_ENCRYPT, &false_val, sizeof(false_val));
1399: FILL_ATTR(tpub, npub, CKA_VERIFY, &true_val, sizeof(true_val));
1400: FILL_ATTR(tpub, npub, CKA_VERIFY_RECOVER, &false_val,
1401: sizeof(false_val));
1402: FILL_ATTR(tpub, npub, CKA_WRAP, &false_val, sizeof(false_val));
1403: FILL_ATTR(tpub, npub, CKA_DERIVE, &false_val, sizeof(false_val));
1404: FILL_ATTR(tpub, npub, CKA_EC_PARAMS, ecparams, ecparams_size);
1405: FILL_ATTR(tpub, npub, CKA_ID, &keyid, sizeof(keyid));
1406:
1407: FILL_ATTR(tpriv, npriv, CKA_TOKEN, &true_val, sizeof(true_val));
1408: FILL_ATTR(tpriv, npriv, CKA_LABEL, plabel, strlen(plabel));
1409: FILL_ATTR(tpriv, npriv, CKA_PRIVATE, &true_val, sizeof(true_val));
1410: FILL_ATTR(tpriv, npriv, CKA_SENSITIVE, &true_val, sizeof(true_val));
1411: FILL_ATTR(tpriv, npriv, CKA_DECRYPT, &false_val, sizeof(false_val));
1412: FILL_ATTR(tpriv, npriv, CKA_SIGN, &true_val, sizeof(true_val));
1413: FILL_ATTR(tpriv, npriv, CKA_SIGN_RECOVER, &false_val,
1414: sizeof(false_val));
1415: FILL_ATTR(tpriv, npriv, CKA_UNWRAP, &false_val, sizeof(false_val));
1416: FILL_ATTR(tpriv, npriv, CKA_DERIVE, &false_val, sizeof(false_val));
1417: FILL_ATTR(tpriv, npriv, CKA_ID, &keyid, sizeof(keyid));
1418:
1419: f = p->function_list;
1420: si = &p->slotinfo[slotidx];
1421: session = si->session;
1422:
1423: if ((rv = f->C_GenerateKeyPair(session, &mech, tpub, npub, tpriv, npriv,
1424: &pubKey, &privKey)) != CKR_OK) {
1425: error("%s: key generation failed: error 0x%lx", __func__, rv);
1426: *err = rv;
1427: return NULL;
1428: }
1429:
1430: return pkcs11_fetch_ecdsa_pubkey(p, slotidx, &pubKey);
1.1 markus 1431: }
1.28 djm 1432: #endif /* WITH_PKCS11_KEYGEN */
1.1 markus 1433:
1.28 djm 1434: /*
1435: * register a new provider, fails if provider already exists. if
1436: * keyp is provided, fetch keys.
1437: */
1438: static int
1439: pkcs11_register_provider(char *provider_id, char *pin, struct sshkey ***keyp,
1440: struct pkcs11_provider **providerp, CK_ULONG user)
1.1 markus 1441: {
1442: int nkeys, need_finalize = 0;
1.28 djm 1443: int ret = -1;
1.1 markus 1444: struct pkcs11_provider *p = NULL;
1445: void *handle = NULL;
1446: CK_RV (*getfunctionlist)(CK_FUNCTION_LIST **);
1447: CK_RV rv;
1448: CK_FUNCTION_LIST *f = NULL;
1449: CK_TOKEN_INFO *token;
1450: CK_ULONG i;
1451:
1.28 djm 1452: if (providerp == NULL)
1453: goto fail;
1454: *providerp = NULL;
1455:
1456: if (keyp != NULL)
1457: *keyp = NULL;
1458:
1.1 markus 1459: if (pkcs11_provider_lookup(provider_id) != NULL) {
1.23 djm 1460: debug("%s: provider already registered: %s",
1461: __func__, provider_id);
1.1 markus 1462: goto fail;
1463: }
1.28 djm 1464: /* open shared pkcs11-library */
1.1 markus 1465: if ((handle = dlopen(provider_id, RTLD_NOW)) == NULL) {
1466: error("dlopen %s failed: %s", provider_id, dlerror());
1467: goto fail;
1468: }
1469: if ((getfunctionlist = dlsym(handle, "C_GetFunctionList")) == NULL) {
1470: error("dlsym(C_GetFunctionList) failed: %s", dlerror());
1471: goto fail;
1472: }
1473: p = xcalloc(1, sizeof(*p));
1474: p->name = xstrdup(provider_id);
1475: p->handle = handle;
1476: /* setup the pkcs11 callbacks */
1477: if ((rv = (*getfunctionlist)(&f)) != CKR_OK) {
1.23 djm 1478: error("C_GetFunctionList for provider %s failed: %lu",
1479: provider_id, rv);
1.1 markus 1480: goto fail;
1481: }
1482: p->function_list = f;
1483: if ((rv = f->C_Initialize(NULL)) != CKR_OK) {
1.23 djm 1484: error("C_Initialize for provider %s failed: %lu",
1485: provider_id, rv);
1.1 markus 1486: goto fail;
1487: }
1488: need_finalize = 1;
1489: if ((rv = f->C_GetInfo(&p->info)) != CKR_OK) {
1.23 djm 1490: error("C_GetInfo for provider %s failed: %lu",
1491: provider_id, rv);
1.1 markus 1492: goto fail;
1493: }
1494: rmspace(p->info.manufacturerID, sizeof(p->info.manufacturerID));
1495: rmspace(p->info.libraryDescription, sizeof(p->info.libraryDescription));
1.23 djm 1496: debug("provider %s: manufacturerID <%s> cryptokiVersion %d.%d"
1.1 markus 1497: " libraryDescription <%s> libraryVersion %d.%d",
1.23 djm 1498: provider_id,
1.1 markus 1499: p->info.manufacturerID,
1500: p->info.cryptokiVersion.major,
1501: p->info.cryptokiVersion.minor,
1502: p->info.libraryDescription,
1503: p->info.libraryVersion.major,
1504: p->info.libraryVersion.minor);
1505: if ((rv = f->C_GetSlotList(CK_TRUE, NULL, &p->nslots)) != CKR_OK) {
1506: error("C_GetSlotList failed: %lu", rv);
1507: goto fail;
1508: }
1509: if (p->nslots == 0) {
1.44 djm 1510: debug("%s: provider %s returned no slots", __func__,
1.23 djm 1511: provider_id);
1.28 djm 1512: ret = -SSH_PKCS11_ERR_NO_SLOTS;
1.1 markus 1513: goto fail;
1514: }
1515: p->slotlist = xcalloc(p->nslots, sizeof(CK_SLOT_ID));
1516: if ((rv = f->C_GetSlotList(CK_TRUE, p->slotlist, &p->nslots))
1517: != CKR_OK) {
1.23 djm 1518: error("C_GetSlotList for provider %s failed: %lu",
1519: provider_id, rv);
1.1 markus 1520: goto fail;
1521: }
1522: p->slotinfo = xcalloc(p->nslots, sizeof(struct pkcs11_slotinfo));
1523: p->valid = 1;
1524: nkeys = 0;
1525: for (i = 0; i < p->nslots; i++) {
1526: token = &p->slotinfo[i].token;
1527: if ((rv = f->C_GetTokenInfo(p->slotlist[i], token))
1528: != CKR_OK) {
1.23 djm 1529: error("C_GetTokenInfo for provider %s slot %lu "
1530: "failed: %lu", provider_id, (unsigned long)i, rv);
1.20 djm 1531: continue;
1532: }
1533: if ((token->flags & CKF_TOKEN_INITIALIZED) == 0) {
1.23 djm 1534: debug2("%s: ignoring uninitialised token in "
1535: "provider %s slot %lu", __func__,
1536: provider_id, (unsigned long)i);
1.1 markus 1537: continue;
1538: }
1539: rmspace(token->label, sizeof(token->label));
1540: rmspace(token->manufacturerID, sizeof(token->manufacturerID));
1541: rmspace(token->model, sizeof(token->model));
1542: rmspace(token->serialNumber, sizeof(token->serialNumber));
1.23 djm 1543: debug("provider %s slot %lu: label <%s> manufacturerID <%s> "
1544: "model <%s> serial <%s> flags 0x%lx",
1545: provider_id, (unsigned long)i,
1.1 markus 1546: token->label, token->manufacturerID, token->model,
1547: token->serialNumber, token->flags);
1.28 djm 1548: /*
1549: * open session, login with pin and retrieve public
1550: * keys (if keyp is provided)
1551: */
1.45 ! djm 1552: if ((ret = pkcs11_open_session(p, i, pin, user)) != 0 ||
! 1553: keyp == NULL)
! 1554: continue;
! 1555: pkcs11_fetch_keys(p, i, keyp, &nkeys);
! 1556: pkcs11_fetch_certs(p, i, keyp, &nkeys);
! 1557: if (nkeys == 0 && !p->slotinfo[i].logged_in &&
! 1558: pkcs11_interactive) {
! 1559: /*
! 1560: * Some tokens require login before they will
! 1561: * expose keys.
! 1562: */
! 1563: if (pkcs11_login_slot(p, &p->slotinfo[i],
! 1564: CKU_USER) < 0) {
! 1565: error("login failed");
1.28 djm 1566: continue;
1.45 ! djm 1567: }
1.1 markus 1568: pkcs11_fetch_keys(p, i, keyp, &nkeys);
1.28 djm 1569: pkcs11_fetch_certs(p, i, keyp, &nkeys);
1570: }
1.1 markus 1571: }
1.28 djm 1572:
1573: /* now owned by caller */
1574: *providerp = p;
1575:
1576: TAILQ_INSERT_TAIL(&pkcs11_providers, p, next);
1577: p->refcount++; /* add to provider list */
1578:
1579: return (nkeys);
1.1 markus 1580: fail:
1581: if (need_finalize && (rv = f->C_Finalize(NULL)) != CKR_OK)
1.23 djm 1582: error("C_Finalize for provider %s failed: %lu",
1583: provider_id, rv);
1.1 markus 1584: if (p) {
1.28 djm 1585: free(p->name);
1.7 djm 1586: free(p->slotlist);
1587: free(p->slotinfo);
1588: free(p);
1.1 markus 1589: }
1590: if (handle)
1591: dlclose(handle);
1.28 djm 1592: return (ret);
1593: }
1594:
1595: /*
1596: * register a new provider and get number of keys hold by the token,
1597: * fails if provider already exists
1598: */
1599: int
1600: pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp)
1601: {
1602: struct pkcs11_provider *p = NULL;
1603: int nkeys;
1604:
1605: nkeys = pkcs11_register_provider(provider_id, pin, keyp, &p, CKU_USER);
1606:
1607: /* no keys found or some other error, de-register provider */
1608: if (nkeys <= 0 && p != NULL) {
1609: TAILQ_REMOVE(&pkcs11_providers, p, next);
1610: pkcs11_provider_finalize(p);
1611: pkcs11_provider_unref(p);
1612: }
1613: if (nkeys == 0)
1614: debug("%s: provider %s returned no keys", __func__,
1615: provider_id);
1616:
1617: return (nkeys);
1618: }
1619:
1620: #ifdef WITH_PKCS11_KEYGEN
1621: struct sshkey *
1622: pkcs11_gakp(char *provider_id, char *pin, unsigned int slotidx, char *label,
1623: unsigned int type, unsigned int bits, unsigned char keyid, u_int32_t *err)
1624: {
1625: struct pkcs11_provider *p = NULL;
1626: struct pkcs11_slotinfo *si;
1627: CK_FUNCTION_LIST *f;
1628: CK_SESSION_HANDLE session;
1629: struct sshkey *k = NULL;
1630: int ret = -1, reset_pin = 0, reset_provider = 0;
1631: CK_RV rv;
1632:
1633: *err = 0;
1634:
1635: if ((p = pkcs11_provider_lookup(provider_id)) != NULL)
1636: debug("%s: provider \"%s\" available", __func__, provider_id);
1637: else if ((ret = pkcs11_register_provider(provider_id, pin, NULL, &p,
1638: CKU_SO)) < 0) {
1639: debug("%s: could not register provider %s", __func__,
1640: provider_id);
1641: goto out;
1642: } else
1643: reset_provider = 1;
1644:
1645: f = p->function_list;
1646: si = &p->slotinfo[slotidx];
1647: session = si->session;
1648:
1649: if ((rv = f->C_SetOperationState(session , pin, strlen(pin),
1650: CK_INVALID_HANDLE, CK_INVALID_HANDLE)) != CKR_OK) {
1651: debug("%s: could not supply SO pin: %lu", __func__, rv);
1652: reset_pin = 0;
1653: } else
1654: reset_pin = 1;
1655:
1656: switch (type) {
1657: case KEY_RSA:
1658: if ((k = pkcs11_rsa_generate_private_key(p, slotidx, label,
1659: bits, keyid, err)) == NULL) {
1660: debug("%s: failed to generate RSA key", __func__);
1661: goto out;
1662: }
1663: break;
1664: case KEY_ECDSA:
1665: if ((k = pkcs11_ecdsa_generate_private_key(p, slotidx, label,
1666: bits, keyid, err)) == NULL) {
1667: debug("%s: failed to generate ECDSA key", __func__);
1668: goto out;
1669: }
1670: break;
1671: default:
1672: *err = SSH_PKCS11_ERR_GENERIC;
1673: debug("%s: unknown type %d", __func__, type);
1674: goto out;
1675: }
1676:
1677: out:
1678: if (reset_pin)
1679: f->C_SetOperationState(session , NULL, 0, CK_INVALID_HANDLE,
1680: CK_INVALID_HANDLE);
1681:
1682: if (reset_provider)
1683: pkcs11_del_provider(provider_id);
1684:
1685: return (k);
1686: }
1687:
1688: struct sshkey *
1689: pkcs11_destroy_keypair(char *provider_id, char *pin, unsigned long slotidx,
1690: unsigned char keyid, u_int32_t *err)
1691: {
1692: struct pkcs11_provider *p = NULL;
1693: struct pkcs11_slotinfo *si;
1694: struct sshkey *k = NULL;
1695: int reset_pin = 0, reset_provider = 0;
1696: CK_ULONG nattrs;
1697: CK_FUNCTION_LIST *f;
1698: CK_SESSION_HANDLE session;
1699: CK_ATTRIBUTE attrs[16];
1700: CK_OBJECT_CLASS key_class;
1701: CK_KEY_TYPE key_type;
1702: CK_OBJECT_HANDLE obj = CK_INVALID_HANDLE;
1703: CK_RV rv;
1704:
1705: *err = 0;
1706:
1707: if ((p = pkcs11_provider_lookup(provider_id)) != NULL) {
1708: debug("%s: using provider \"%s\"", __func__, provider_id);
1709: } else if (pkcs11_register_provider(provider_id, pin, NULL, &p,
1710: CKU_SO) < 0) {
1711: debug("%s: could not register provider %s", __func__,
1712: provider_id);
1713: goto out;
1714: } else
1715: reset_provider = 1;
1716:
1717: f = p->function_list;
1718: si = &p->slotinfo[slotidx];
1719: session = si->session;
1720:
1721: if ((rv = f->C_SetOperationState(session , pin, strlen(pin),
1722: CK_INVALID_HANDLE, CK_INVALID_HANDLE)) != CKR_OK) {
1723: debug("%s: could not supply SO pin: %lu", __func__, rv);
1724: reset_pin = 0;
1725: } else
1726: reset_pin = 1;
1727:
1728: /* private key */
1729: nattrs = 0;
1730: key_class = CKO_PRIVATE_KEY;
1731: FILL_ATTR(attrs, nattrs, CKA_CLASS, &key_class, sizeof(key_class));
1732: FILL_ATTR(attrs, nattrs, CKA_ID, &keyid, sizeof(keyid));
1733:
1734: if (pkcs11_find(p, slotidx, attrs, nattrs, &obj) == 0 &&
1735: obj != CK_INVALID_HANDLE) {
1736: if ((rv = f->C_DestroyObject(session, obj)) != CKR_OK) {
1737: debug("%s: could not destroy private key 0x%hhx",
1738: __func__, keyid);
1739: *err = rv;
1740: goto out;
1741: }
1742: }
1743:
1744: /* public key */
1745: nattrs = 0;
1746: key_class = CKO_PUBLIC_KEY;
1747: FILL_ATTR(attrs, nattrs, CKA_CLASS, &key_class, sizeof(key_class));
1748: FILL_ATTR(attrs, nattrs, CKA_ID, &keyid, sizeof(keyid));
1749:
1750: if (pkcs11_find(p, slotidx, attrs, nattrs, &obj) == 0 &&
1751: obj != CK_INVALID_HANDLE) {
1752:
1753: /* get key type */
1754: nattrs = 0;
1755: FILL_ATTR(attrs, nattrs, CKA_KEY_TYPE, &key_type,
1756: sizeof(key_type));
1757: rv = f->C_GetAttributeValue(session, obj, attrs, nattrs);
1758: if (rv != CKR_OK) {
1759: debug("%s: could not get key type of public key 0x%hhx",
1760: __func__, keyid);
1761: *err = rv;
1762: key_type = -1;
1763: }
1764: if (key_type == CKK_RSA)
1765: k = pkcs11_fetch_rsa_pubkey(p, slotidx, &obj);
1766: else if (key_type == CKK_ECDSA)
1767: k = pkcs11_fetch_ecdsa_pubkey(p, slotidx, &obj);
1768:
1769: if ((rv = f->C_DestroyObject(session, obj)) != CKR_OK) {
1770: debug("%s: could not destroy public key 0x%hhx",
1771: __func__, keyid);
1772: *err = rv;
1773: goto out;
1774: }
1775: }
1776:
1777: out:
1778: if (reset_pin)
1779: f->C_SetOperationState(session , NULL, 0, CK_INVALID_HANDLE,
1780: CK_INVALID_HANDLE);
1781:
1782: if (reset_provider)
1783: pkcs11_del_provider(provider_id);
1784:
1785: return (k);
1.1 markus 1786: }
1.28 djm 1787: #endif /* WITH_PKCS11_KEYGEN */
1.2 markus 1788: #else
1789: int
1.15 djm 1790: pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp)
1.2 markus 1791: {
1792: error("dlopen() not supported");
1793: return (-1);
1794: }
1.28 djm 1795: #endif /* HAVE_DLOPEN */
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