djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1 | /* $OpenBSD: ssh-pkcs11.c,v 1.47 2020/01/25 00:03:36 djm Exp $ */ |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (c) 2010 Markus Friedl. All rights reserved. |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 4 | * Copyright (c) 2014 Pedro Martelletto. All rights reserved. |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 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 | |
Damien Miller | 8ad0fbd | 2010-02-12 09:49:06 +1100 | [diff] [blame] | 19 | #include "includes.h" |
| 20 | |
Damien Miller | dfa4156 | 2010-02-12 10:06:28 +1100 | [diff] [blame] | 21 | #ifdef ENABLE_PKCS11 |
| 22 | |
Damien Miller | 8ad0fbd | 2010-02-12 09:49:06 +1100 | [diff] [blame] | 23 | #ifdef HAVE_SYS_TIME_H |
| 24 | # include <sys/time.h> |
| 25 | #endif |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 26 | |
| 27 | #include <sys/types.h> |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 28 | #include <stdarg.h> |
| 29 | #include <stdio.h> |
| 30 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 31 | #include <ctype.h> |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 32 | #include <string.h> |
| 33 | #include <dlfcn.h> |
| 34 | |
Damien Miller | 8ad0fbd | 2010-02-12 09:49:06 +1100 | [diff] [blame] | 35 | #include "openbsd-compat/sys-queue.h" |
Damien Miller | 48f54b9 | 2018-09-13 12:13:50 +1000 | [diff] [blame] | 36 | #include "openbsd-compat/openssl-compat.h" |
Damien Miller | 8ad0fbd | 2010-02-12 09:49:06 +1100 | [diff] [blame] | 37 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 38 | #include <openssl/ecdsa.h> |
Damien Miller | d2252c7 | 2013-11-04 07:41:48 +1100 | [diff] [blame] | 39 | #include <openssl/x509.h> |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 40 | #include <openssl/err.h> |
Damien Miller | d2252c7 | 2013-11-04 07:41:48 +1100 | [diff] [blame] | 41 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 42 | #define CRYPTOKI_COMPAT |
| 43 | #include "pkcs11.h" |
| 44 | |
| 45 | #include "log.h" |
| 46 | #include "misc.h" |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 47 | #include "sshkey.h" |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 48 | #include "ssh-pkcs11.h" |
| 49 | #include "xmalloc.h" |
| 50 | |
| 51 | struct pkcs11_slotinfo { |
| 52 | CK_TOKEN_INFO token; |
| 53 | CK_SESSION_HANDLE session; |
| 54 | int logged_in; |
| 55 | }; |
| 56 | |
| 57 | struct pkcs11_provider { |
| 58 | char *name; |
| 59 | void *handle; |
| 60 | CK_FUNCTION_LIST *function_list; |
| 61 | CK_INFO info; |
| 62 | CK_ULONG nslots; |
| 63 | CK_SLOT_ID *slotlist; |
| 64 | struct pkcs11_slotinfo *slotinfo; |
| 65 | int valid; |
| 66 | int refcount; |
| 67 | TAILQ_ENTRY(pkcs11_provider) next; |
| 68 | }; |
| 69 | |
| 70 | TAILQ_HEAD(, pkcs11_provider) pkcs11_providers; |
| 71 | |
| 72 | struct pkcs11_key { |
| 73 | struct pkcs11_provider *provider; |
| 74 | CK_ULONG slotidx; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 75 | char *keyid; |
| 76 | int keyid_len; |
| 77 | }; |
| 78 | |
| 79 | int pkcs11_interactive = 0; |
| 80 | |
Damien Miller | 2efcf81 | 2019-01-21 11:57:21 +1100 | [diff] [blame] | 81 | #ifdef HAVE_EC_KEY_METHOD_NEW |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 82 | static void |
| 83 | ossl_error(const char *msg) |
| 84 | { |
djm@openbsd.org | 6529409 | 2019-01-20 23:11:11 +0000 | [diff] [blame] | 85 | unsigned long e; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 86 | |
djm@openbsd.org | 662be40 | 2019-01-21 02:05:38 +0000 | [diff] [blame] | 87 | error("%s: %s", __func__, msg); |
djm@openbsd.org | 6529409 | 2019-01-20 23:11:11 +0000 | [diff] [blame] | 88 | while ((e = ERR_get_error()) != 0) |
djm@openbsd.org | 662be40 | 2019-01-21 02:05:38 +0000 | [diff] [blame] | 89 | error("%s: libcrypto error: %.100s", __func__, |
djm@openbsd.org | 6529409 | 2019-01-20 23:11:11 +0000 | [diff] [blame] | 90 | ERR_error_string(e, NULL)); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 91 | } |
Damien Miller | 2efcf81 | 2019-01-21 11:57:21 +1100 | [diff] [blame] | 92 | #endif /* HAVE_EC_KEY_METHOD_NEW */ |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 93 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 94 | int |
| 95 | pkcs11_init(int interactive) |
| 96 | { |
| 97 | pkcs11_interactive = interactive; |
| 98 | TAILQ_INIT(&pkcs11_providers); |
| 99 | return (0); |
| 100 | } |
| 101 | |
| 102 | /* |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 103 | * finalize a provider shared library, it's no longer usable. |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 104 | * however, there might still be keys referencing this provider, |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 105 | * so the actual freeing of memory is handled by pkcs11_provider_unref(). |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 106 | * this is called when a provider gets unregistered. |
| 107 | */ |
| 108 | static void |
| 109 | pkcs11_provider_finalize(struct pkcs11_provider *p) |
| 110 | { |
| 111 | CK_RV rv; |
| 112 | CK_ULONG i; |
| 113 | |
| 114 | debug("pkcs11_provider_finalize: %p refcount %d valid %d", |
| 115 | p, p->refcount, p->valid); |
| 116 | if (!p->valid) |
| 117 | return; |
| 118 | for (i = 0; i < p->nslots; i++) { |
| 119 | if (p->slotinfo[i].session && |
| 120 | (rv = p->function_list->C_CloseSession( |
| 121 | p->slotinfo[i].session)) != CKR_OK) |
| 122 | error("C_CloseSession failed: %lu", rv); |
| 123 | } |
| 124 | if ((rv = p->function_list->C_Finalize(NULL)) != CKR_OK) |
| 125 | error("C_Finalize failed: %lu", rv); |
| 126 | p->valid = 0; |
| 127 | p->function_list = NULL; |
| 128 | dlclose(p->handle); |
| 129 | } |
| 130 | |
| 131 | /* |
| 132 | * remove a reference to the provider. |
| 133 | * called when a key gets destroyed or when the provider is unregistered. |
| 134 | */ |
| 135 | static void |
| 136 | pkcs11_provider_unref(struct pkcs11_provider *p) |
| 137 | { |
| 138 | debug("pkcs11_provider_unref: %p refcount %d", p, p->refcount); |
| 139 | if (--p->refcount <= 0) { |
| 140 | if (p->valid) |
| 141 | error("pkcs11_provider_unref: %p still valid", p); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 142 | free(p->name); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 143 | free(p->slotlist); |
| 144 | free(p->slotinfo); |
| 145 | free(p); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 146 | } |
| 147 | } |
| 148 | |
| 149 | /* unregister all providers, keys might still point to the providers */ |
| 150 | void |
| 151 | pkcs11_terminate(void) |
| 152 | { |
| 153 | struct pkcs11_provider *p; |
| 154 | |
| 155 | while ((p = TAILQ_FIRST(&pkcs11_providers)) != NULL) { |
| 156 | TAILQ_REMOVE(&pkcs11_providers, p, next); |
| 157 | pkcs11_provider_finalize(p); |
| 158 | pkcs11_provider_unref(p); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | /* lookup provider by name */ |
| 163 | static struct pkcs11_provider * |
| 164 | pkcs11_provider_lookup(char *provider_id) |
| 165 | { |
| 166 | struct pkcs11_provider *p; |
| 167 | |
| 168 | TAILQ_FOREACH(p, &pkcs11_providers, next) { |
| 169 | debug("check %p %s", p, p->name); |
| 170 | if (!strcmp(provider_id, p->name)) |
| 171 | return (p); |
| 172 | } |
| 173 | return (NULL); |
| 174 | } |
| 175 | |
| 176 | /* unregister provider by name */ |
| 177 | int |
| 178 | pkcs11_del_provider(char *provider_id) |
| 179 | { |
| 180 | struct pkcs11_provider *p; |
| 181 | |
| 182 | if ((p = pkcs11_provider_lookup(provider_id)) != NULL) { |
| 183 | TAILQ_REMOVE(&pkcs11_providers, p, next); |
| 184 | pkcs11_provider_finalize(p); |
| 185 | pkcs11_provider_unref(p); |
| 186 | return (0); |
| 187 | } |
| 188 | return (-1); |
| 189 | } |
| 190 | |
djm@openbsd.org | ce46c3a | 2019-01-21 02:01:03 +0000 | [diff] [blame] | 191 | static RSA_METHOD *rsa_method; |
| 192 | static int rsa_idx = 0; |
Damien Miller | 23490a6 | 2019-01-21 15:05:43 +1100 | [diff] [blame] | 193 | #ifdef HAVE_EC_KEY_METHOD_NEW |
djm@openbsd.org | ce46c3a | 2019-01-21 02:01:03 +0000 | [diff] [blame] | 194 | static EC_KEY_METHOD *ec_key_method; |
| 195 | static int ec_key_idx = 0; |
Darren Tucker | b6dd327 | 2019-01-21 13:50:17 +1100 | [diff] [blame] | 196 | #endif |
djm@openbsd.org | ce46c3a | 2019-01-21 02:01:03 +0000 | [diff] [blame] | 197 | |
djm@openbsd.org | 58622a8 | 2019-01-20 23:10:33 +0000 | [diff] [blame] | 198 | /* release a wrapped object */ |
| 199 | static void |
| 200 | pkcs11_k11_free(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, |
| 201 | long argl, void *argp) |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 202 | { |
Darren Tucker | 5590f53 | 2019-04-26 18:22:10 +1000 | [diff] [blame] | 203 | struct pkcs11_key *k11 = ptr; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 204 | |
Darren Tucker | 5590f53 | 2019-04-26 18:22:10 +1000 | [diff] [blame] | 205 | debug("%s: parent %p ptr %p idx %d", __func__, parent, ptr, idx); |
| 206 | if (k11 == NULL) |
| 207 | return; |
| 208 | if (k11->provider) |
| 209 | pkcs11_provider_unref(k11->provider); |
| 210 | free(k11->keyid); |
| 211 | free(k11); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 212 | } |
| 213 | |
Damien Miller | 031c910 | 2010-04-16 15:54:44 +1000 | [diff] [blame] | 214 | /* find a single 'obj' for given attributes */ |
| 215 | static int |
| 216 | pkcs11_find(struct pkcs11_provider *p, CK_ULONG slotidx, CK_ATTRIBUTE *attr, |
| 217 | CK_ULONG nattr, CK_OBJECT_HANDLE *obj) |
| 218 | { |
| 219 | CK_FUNCTION_LIST *f; |
| 220 | CK_SESSION_HANDLE session; |
| 221 | CK_ULONG nfound = 0; |
| 222 | CK_RV rv; |
| 223 | int ret = -1; |
| 224 | |
| 225 | f = p->function_list; |
| 226 | session = p->slotinfo[slotidx].session; |
| 227 | if ((rv = f->C_FindObjectsInit(session, attr, nattr)) != CKR_OK) { |
| 228 | error("C_FindObjectsInit failed (nattr %lu): %lu", nattr, rv); |
| 229 | return (-1); |
| 230 | } |
| 231 | if ((rv = f->C_FindObjects(session, obj, 1, &nfound)) != CKR_OK || |
| 232 | nfound != 1) { |
| 233 | debug("C_FindObjects failed (nfound %lu nattr %lu): %lu", |
| 234 | nfound, nattr, rv); |
| 235 | } else |
| 236 | ret = 0; |
| 237 | if ((rv = f->C_FindObjectsFinal(session)) != CKR_OK) |
| 238 | error("C_FindObjectsFinal failed: %lu", rv); |
| 239 | return (ret); |
| 240 | } |
| 241 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 242 | static int |
djm@openbsd.org | 7d6034b | 2019-09-05 10:05:51 +0000 | [diff] [blame] | 243 | pkcs11_login_slot(struct pkcs11_provider *provider, struct pkcs11_slotinfo *si, |
| 244 | CK_USER_TYPE type) |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 245 | { |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 246 | char *pin = NULL, prompt[1024]; |
| 247 | CK_RV rv; |
| 248 | |
djm@openbsd.org | 7d6034b | 2019-09-05 10:05:51 +0000 | [diff] [blame] | 249 | if (provider == NULL || si == NULL || !provider->valid) { |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 250 | error("no pkcs11 (valid) provider found"); |
| 251 | return (-1); |
| 252 | } |
| 253 | |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 254 | if (!pkcs11_interactive) { |
| 255 | error("need pin entry%s", |
| 256 | (si->token.flags & CKF_PROTECTED_AUTHENTICATION_PATH) ? |
| 257 | " on reader keypad" : ""); |
| 258 | return (-1); |
| 259 | } |
| 260 | if (si->token.flags & CKF_PROTECTED_AUTHENTICATION_PATH) |
| 261 | verbose("Deferring PIN entry to reader keypad."); |
| 262 | else { |
| 263 | snprintf(prompt, sizeof(prompt), "Enter PIN for '%s': ", |
| 264 | si->token.label); |
| 265 | if ((pin = read_passphrase(prompt, RP_ALLOW_EOF)) == NULL) { |
| 266 | debug("%s: no pin specified", __func__); |
| 267 | return (-1); /* bail out */ |
| 268 | } |
| 269 | } |
djm@openbsd.org | 7d6034b | 2019-09-05 10:05:51 +0000 | [diff] [blame] | 270 | rv = provider->function_list->C_Login(si->session, type, (u_char *)pin, |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 271 | (pin != NULL) ? strlen(pin) : 0); |
| 272 | if (pin != NULL) |
| 273 | freezero(pin, strlen(pin)); |
| 274 | if (rv != CKR_OK && rv != CKR_USER_ALREADY_LOGGED_IN) { |
| 275 | error("C_Login failed: %lu", rv); |
| 276 | return (-1); |
| 277 | } |
| 278 | si->logged_in = 1; |
| 279 | return (0); |
| 280 | } |
| 281 | |
| 282 | static int |
djm@openbsd.org | 7d6034b | 2019-09-05 10:05:51 +0000 | [diff] [blame] | 283 | pkcs11_login(struct pkcs11_key *k11, CK_USER_TYPE type) |
| 284 | { |
| 285 | if (k11 == NULL || k11->provider == NULL || !k11->provider->valid) { |
| 286 | error("no pkcs11 (valid) provider found"); |
| 287 | return (-1); |
| 288 | } |
| 289 | |
| 290 | return pkcs11_login_slot(k11->provider, |
| 291 | &k11->provider->slotinfo[k11->slotidx], type); |
| 292 | } |
| 293 | |
| 294 | |
| 295 | static int |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 296 | pkcs11_check_obj_bool_attrib(struct pkcs11_key *k11, CK_OBJECT_HANDLE obj, |
| 297 | CK_ATTRIBUTE_TYPE type, int *val) |
| 298 | { |
| 299 | struct pkcs11_slotinfo *si; |
| 300 | CK_FUNCTION_LIST *f; |
| 301 | CK_BBOOL flag = 0; |
| 302 | CK_ATTRIBUTE attr; |
| 303 | CK_RV rv; |
| 304 | |
| 305 | *val = 0; |
| 306 | |
| 307 | if (!k11->provider || !k11->provider->valid) { |
| 308 | error("no pkcs11 (valid) provider found"); |
| 309 | return (-1); |
| 310 | } |
| 311 | |
| 312 | f = k11->provider->function_list; |
| 313 | si = &k11->provider->slotinfo[k11->slotidx]; |
| 314 | |
| 315 | attr.type = type; |
| 316 | attr.pValue = &flag; |
| 317 | attr.ulValueLen = sizeof(flag); |
| 318 | |
| 319 | rv = f->C_GetAttributeValue(si->session, obj, &attr, 1); |
| 320 | if (rv != CKR_OK) { |
| 321 | error("C_GetAttributeValue failed: %lu", rv); |
| 322 | return (-1); |
| 323 | } |
| 324 | *val = flag != 0; |
| 325 | debug("%s: provider %p slot %lu object %lu: attrib %lu = %d", |
| 326 | __func__, k11->provider, k11->slotidx, obj, type, *val); |
| 327 | return (0); |
| 328 | } |
| 329 | |
| 330 | static int |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 331 | pkcs11_get_key(struct pkcs11_key *k11, CK_MECHANISM_TYPE mech_type) |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 332 | { |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 333 | struct pkcs11_slotinfo *si; |
| 334 | CK_FUNCTION_LIST *f; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 335 | CK_OBJECT_HANDLE obj; |
| 336 | CK_RV rv; |
| 337 | CK_OBJECT_CLASS private_key_class; |
| 338 | CK_BBOOL true_val; |
| 339 | CK_MECHANISM mech; |
| 340 | CK_ATTRIBUTE key_filter[3]; |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 341 | int always_auth = 0; |
| 342 | int did_login = 0; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 343 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 344 | if (!k11->provider || !k11->provider->valid) { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 345 | error("no pkcs11 (valid) provider found"); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 346 | return (-1); |
| 347 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 348 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 349 | f = k11->provider->function_list; |
| 350 | si = &k11->provider->slotinfo[k11->slotidx]; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 351 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 352 | if ((si->token.flags & CKF_LOGIN_REQUIRED) && !si->logged_in) { |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 353 | if (pkcs11_login(k11, CKU_USER) < 0) { |
| 354 | error("login failed"); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 355 | return (-1); |
| 356 | } |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 357 | did_login = 1; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 358 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 359 | |
| 360 | memset(&key_filter, 0, sizeof(key_filter)); |
| 361 | private_key_class = CKO_PRIVATE_KEY; |
| 362 | key_filter[0].type = CKA_CLASS; |
| 363 | key_filter[0].pValue = &private_key_class; |
| 364 | key_filter[0].ulValueLen = sizeof(private_key_class); |
| 365 | |
| 366 | key_filter[1].type = CKA_ID; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 367 | key_filter[1].pValue = k11->keyid; |
| 368 | key_filter[1].ulValueLen = k11->keyid_len; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 369 | |
| 370 | true_val = CK_TRUE; |
| 371 | key_filter[2].type = CKA_SIGN; |
| 372 | key_filter[2].pValue = &true_val; |
| 373 | key_filter[2].ulValueLen = sizeof(true_val); |
| 374 | |
Damien Miller | 031c910 | 2010-04-16 15:54:44 +1000 | [diff] [blame] | 375 | /* try to find object w/CKA_SIGN first, retry w/o */ |
| 376 | if (pkcs11_find(k11->provider, k11->slotidx, key_filter, 3, &obj) < 0 && |
| 377 | pkcs11_find(k11->provider, k11->slotidx, key_filter, 2, &obj) < 0) { |
| 378 | error("cannot find private key"); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 379 | return (-1); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 380 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 381 | |
| 382 | memset(&mech, 0, sizeof(mech)); |
| 383 | mech.mechanism = mech_type; |
| 384 | mech.pParameter = NULL_PTR; |
| 385 | mech.ulParameterLen = 0; |
| 386 | |
| 387 | if ((rv = f->C_SignInit(si->session, &mech, obj)) != CKR_OK) { |
| 388 | error("C_SignInit failed: %lu", rv); |
| 389 | return (-1); |
| 390 | } |
| 391 | |
djm@openbsd.org | 2162171 | 2019-01-22 12:00:50 +0000 | [diff] [blame] | 392 | pkcs11_check_obj_bool_attrib(k11, obj, CKA_ALWAYS_AUTHENTICATE, |
| 393 | &always_auth); /* ignore errors here */ |
| 394 | if (always_auth && !did_login) { |
| 395 | debug("%s: always-auth key", __func__); |
| 396 | if (pkcs11_login(k11, CKU_CONTEXT_SPECIFIC) < 0) { |
| 397 | error("login failed for always-auth key"); |
| 398 | return (-1); |
| 399 | } |
| 400 | } |
| 401 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 402 | return (0); |
| 403 | } |
| 404 | |
| 405 | /* openssl callback doing the actual signing operation */ |
| 406 | static int |
| 407 | pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa, |
| 408 | int padding) |
| 409 | { |
| 410 | struct pkcs11_key *k11; |
| 411 | struct pkcs11_slotinfo *si; |
| 412 | CK_FUNCTION_LIST *f; |
| 413 | CK_ULONG tlen = 0; |
| 414 | CK_RV rv; |
| 415 | int rval = -1; |
| 416 | |
djm@openbsd.org | ce46c3a | 2019-01-21 02:01:03 +0000 | [diff] [blame] | 417 | if ((k11 = RSA_get_ex_data(rsa, rsa_idx)) == NULL) { |
djm@openbsd.org | f118542 | 2019-01-20 23:08:24 +0000 | [diff] [blame] | 418 | error("RSA_get_ex_data failed for rsa %p", rsa); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 419 | return (-1); |
| 420 | } |
| 421 | |
| 422 | if (pkcs11_get_key(k11, CKM_RSA_PKCS) == -1) { |
| 423 | error("pkcs11_get_key failed"); |
| 424 | return (-1); |
| 425 | } |
| 426 | |
| 427 | f = k11->provider->function_list; |
| 428 | si = &k11->provider->slotinfo[k11->slotidx]; |
| 429 | tlen = RSA_size(rsa); |
| 430 | |
| 431 | /* XXX handle CKR_BUFFER_TOO_SMALL */ |
| 432 | rv = f->C_Sign(si->session, (CK_BYTE *)from, flen, to, &tlen); |
| 433 | if (rv == CKR_OK) |
| 434 | rval = tlen; |
| 435 | else |
| 436 | error("C_Sign failed: %lu", rv); |
| 437 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 438 | return (rval); |
| 439 | } |
| 440 | |
| 441 | static int |
| 442 | pkcs11_rsa_private_decrypt(int flen, const u_char *from, u_char *to, RSA *rsa, |
| 443 | int padding) |
| 444 | { |
| 445 | return (-1); |
| 446 | } |
| 447 | |
djm@openbsd.org | f118542 | 2019-01-20 23:08:24 +0000 | [diff] [blame] | 448 | static int |
| 449 | pkcs11_rsa_start_wrapper(void) |
| 450 | { |
| 451 | if (rsa_method != NULL) |
| 452 | return (0); |
| 453 | rsa_method = RSA_meth_dup(RSA_get_default_method()); |
| 454 | if (rsa_method == NULL) |
| 455 | return (-1); |
djm@openbsd.org | 58622a8 | 2019-01-20 23:10:33 +0000 | [diff] [blame] | 456 | rsa_idx = RSA_get_ex_new_index(0, "ssh-pkcs11-rsa", |
| 457 | NULL, NULL, pkcs11_k11_free); |
| 458 | if (rsa_idx == -1) |
| 459 | return (-1); |
djm@openbsd.org | f118542 | 2019-01-20 23:08:24 +0000 | [diff] [blame] | 460 | if (!RSA_meth_set1_name(rsa_method, "pkcs11") || |
| 461 | !RSA_meth_set_priv_enc(rsa_method, pkcs11_rsa_private_encrypt) || |
djm@openbsd.org | 58622a8 | 2019-01-20 23:10:33 +0000 | [diff] [blame] | 462 | !RSA_meth_set_priv_dec(rsa_method, pkcs11_rsa_private_decrypt)) { |
djm@openbsd.org | f118542 | 2019-01-20 23:08:24 +0000 | [diff] [blame] | 463 | error("%s: setup pkcs11 method failed", __func__); |
| 464 | return (-1); |
| 465 | } |
| 466 | return (0); |
| 467 | } |
| 468 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 469 | /* redirect private key operations for rsa key to pkcs11 token */ |
| 470 | static int |
| 471 | pkcs11_rsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx, |
| 472 | CK_ATTRIBUTE *keyid_attrib, RSA *rsa) |
| 473 | { |
| 474 | struct pkcs11_key *k11; |
djm@openbsd.org | f118542 | 2019-01-20 23:08:24 +0000 | [diff] [blame] | 475 | |
| 476 | if (pkcs11_rsa_start_wrapper() == -1) |
| 477 | return (-1); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 478 | |
| 479 | k11 = xcalloc(1, sizeof(*k11)); |
| 480 | k11->provider = provider; |
| 481 | provider->refcount++; /* provider referenced by RSA key */ |
| 482 | k11->slotidx = slotidx; |
| 483 | /* identify key object on smartcard */ |
| 484 | k11->keyid_len = keyid_attrib->ulValueLen; |
djm@openbsd.org | d2d772f | 2016-02-12 00:20:30 +0000 | [diff] [blame] | 485 | if (k11->keyid_len > 0) { |
| 486 | k11->keyid = xmalloc(k11->keyid_len); |
| 487 | memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len); |
| 488 | } |
djm@openbsd.org | f118542 | 2019-01-20 23:08:24 +0000 | [diff] [blame] | 489 | |
djm@openbsd.org | fcb1b09 | 2019-01-20 23:12:35 +0000 | [diff] [blame] | 490 | RSA_set_method(rsa, rsa_method); |
djm@openbsd.org | 58622a8 | 2019-01-20 23:10:33 +0000 | [diff] [blame] | 491 | RSA_set_ex_data(rsa, rsa_idx, k11); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 492 | return (0); |
| 493 | } |
| 494 | |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 495 | #ifdef HAVE_EC_KEY_METHOD_NEW |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 496 | /* openssl callback doing the actual signing operation */ |
| 497 | static ECDSA_SIG * |
| 498 | ecdsa_do_sign(const unsigned char *dgst, int dgst_len, const BIGNUM *inv, |
| 499 | const BIGNUM *rp, EC_KEY *ec) |
| 500 | { |
| 501 | struct pkcs11_key *k11; |
| 502 | struct pkcs11_slotinfo *si; |
| 503 | CK_FUNCTION_LIST *f; |
| 504 | CK_ULONG siglen = 0, bnlen; |
| 505 | CK_RV rv; |
| 506 | ECDSA_SIG *ret = NULL; |
| 507 | u_char *sig; |
djm@openbsd.org | 6329764 | 2019-01-21 00:47:34 +0000 | [diff] [blame] | 508 | BIGNUM *r = NULL, *s = NULL; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 509 | |
djm@openbsd.org | ce46c3a | 2019-01-21 02:01:03 +0000 | [diff] [blame] | 510 | if ((k11 = EC_KEY_get_ex_data(ec, ec_key_idx)) == NULL) { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 511 | ossl_error("EC_KEY_get_key_method_data failed for ec"); |
| 512 | return (NULL); |
| 513 | } |
| 514 | |
| 515 | if (pkcs11_get_key(k11, CKM_ECDSA) == -1) { |
| 516 | error("pkcs11_get_key failed"); |
| 517 | return (NULL); |
| 518 | } |
| 519 | |
| 520 | f = k11->provider->function_list; |
| 521 | si = &k11->provider->slotinfo[k11->slotidx]; |
| 522 | |
| 523 | siglen = ECDSA_size(ec); |
| 524 | sig = xmalloc(siglen); |
| 525 | |
| 526 | /* XXX handle CKR_BUFFER_TOO_SMALL */ |
| 527 | rv = f->C_Sign(si->session, (CK_BYTE *)dgst, dgst_len, sig, &siglen); |
| 528 | if (rv != CKR_OK) { |
| 529 | error("C_Sign failed: %lu", rv); |
| 530 | goto done; |
| 531 | } |
djm@openbsd.org | 749aef3 | 2019-01-20 23:00:12 +0000 | [diff] [blame] | 532 | if (siglen < 64 || siglen > 132 || siglen % 2) { |
| 533 | ossl_error("d2i_ECDSA_SIG failed"); |
| 534 | goto done; |
| 535 | } |
| 536 | bnlen = siglen/2; |
| 537 | if ((ret = ECDSA_SIG_new()) == NULL) { |
| 538 | error("ECDSA_SIG_new failed"); |
| 539 | goto done; |
| 540 | } |
djm@openbsd.org | 6329764 | 2019-01-21 00:47:34 +0000 | [diff] [blame] | 541 | if ((r = BN_bin2bn(sig, bnlen, NULL)) == NULL || |
| 542 | (s = BN_bin2bn(sig+bnlen, bnlen, NULL)) == NULL) { |
djm@openbsd.org | 749aef3 | 2019-01-20 23:00:12 +0000 | [diff] [blame] | 543 | ossl_error("d2i_ECDSA_SIG failed"); |
| 544 | ECDSA_SIG_free(ret); |
| 545 | ret = NULL; |
| 546 | goto done; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 547 | } |
djm@openbsd.org | 6329764 | 2019-01-21 00:47:34 +0000 | [diff] [blame] | 548 | if (!ECDSA_SIG_set0(ret, r, s)) { |
| 549 | error("%s: ECDSA_SIG_set0 failed", __func__); |
| 550 | ECDSA_SIG_free(ret); |
| 551 | ret = NULL; |
| 552 | goto done; |
| 553 | } |
| 554 | r = s = NULL; /* now owned by ret */ |
| 555 | /* success */ |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 556 | done: |
djm@openbsd.org | 6329764 | 2019-01-21 00:47:34 +0000 | [diff] [blame] | 557 | BN_free(r); |
| 558 | BN_free(s); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 559 | free(sig); |
| 560 | |
| 561 | return (ret); |
| 562 | } |
| 563 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 564 | static int |
| 565 | pkcs11_ecdsa_start_wrapper(void) |
| 566 | { |
| 567 | int (*orig_sign)(int, const unsigned char *, int, unsigned char *, |
| 568 | unsigned int *, const BIGNUM *, const BIGNUM *, EC_KEY *) = NULL; |
| 569 | |
| 570 | if (ec_key_method != NULL) |
| 571 | return (0); |
djm@openbsd.org | 445cfce | 2019-01-20 23:05:52 +0000 | [diff] [blame] | 572 | ec_key_idx = EC_KEY_get_ex_new_index(0, "ssh-pkcs11-ecdsa", |
| 573 | NULL, NULL, pkcs11_k11_free); |
| 574 | if (ec_key_idx == -1) |
| 575 | return (-1); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 576 | ec_key_method = EC_KEY_METHOD_new(EC_KEY_OpenSSL()); |
| 577 | if (ec_key_method == NULL) |
| 578 | return (-1); |
| 579 | EC_KEY_METHOD_get_sign(ec_key_method, &orig_sign, NULL, NULL); |
| 580 | EC_KEY_METHOD_set_sign(ec_key_method, orig_sign, NULL, ecdsa_do_sign); |
| 581 | return (0); |
| 582 | } |
| 583 | |
| 584 | static int |
| 585 | pkcs11_ecdsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx, |
| 586 | CK_ATTRIBUTE *keyid_attrib, EC_KEY *ec) |
| 587 | { |
| 588 | struct pkcs11_key *k11; |
| 589 | |
| 590 | if (pkcs11_ecdsa_start_wrapper() == -1) |
| 591 | return (-1); |
| 592 | |
| 593 | k11 = xcalloc(1, sizeof(*k11)); |
| 594 | k11->provider = provider; |
| 595 | provider->refcount++; /* provider referenced by ECDSA key */ |
| 596 | k11->slotidx = slotidx; |
| 597 | /* identify key object on smartcard */ |
| 598 | k11->keyid_len = keyid_attrib->ulValueLen; |
| 599 | k11->keyid = xmalloc(k11->keyid_len); |
| 600 | memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 601 | |
djm@openbsd.org | fcb1b09 | 2019-01-20 23:12:35 +0000 | [diff] [blame] | 602 | EC_KEY_set_method(ec, ec_key_method); |
djm@openbsd.org | 445cfce | 2019-01-20 23:05:52 +0000 | [diff] [blame] | 603 | EC_KEY_set_ex_data(ec, ec_key_idx, k11); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 604 | |
| 605 | return (0); |
| 606 | } |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 607 | #endif /* HAVE_EC_KEY_METHOD_NEW */ |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 608 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 609 | /* remove trailing spaces */ |
| 610 | static void |
Damien Miller | 746d1a6 | 2013-07-18 16:13:02 +1000 | [diff] [blame] | 611 | rmspace(u_char *buf, size_t len) |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 612 | { |
| 613 | size_t i; |
| 614 | |
| 615 | if (!len) |
| 616 | return; |
| 617 | for (i = len - 1; i > 0; i--) |
| 618 | if (i == len - 1 || buf[i] == ' ') |
| 619 | buf[i] = '\0'; |
| 620 | else |
| 621 | break; |
| 622 | } |
| 623 | |
| 624 | /* |
| 625 | * open a pkcs11 session and login if required. |
| 626 | * if pin == NULL we delay login until key use |
| 627 | */ |
| 628 | static int |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 629 | pkcs11_open_session(struct pkcs11_provider *p, CK_ULONG slotidx, char *pin, |
| 630 | CK_ULONG user) |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 631 | { |
djm@openbsd.org | 41923ce | 2019-01-22 12:03:58 +0000 | [diff] [blame] | 632 | struct pkcs11_slotinfo *si; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 633 | CK_FUNCTION_LIST *f; |
djm@openbsd.org | 41923ce | 2019-01-22 12:03:58 +0000 | [diff] [blame] | 634 | CK_RV rv; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 635 | CK_SESSION_HANDLE session; |
djm@openbsd.org | 0846827 | 2019-10-01 10:22:53 +0000 | [diff] [blame] | 636 | int login_required, ret; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 637 | |
| 638 | f = p->function_list; |
djm@openbsd.org | 41923ce | 2019-01-22 12:03:58 +0000 | [diff] [blame] | 639 | si = &p->slotinfo[slotidx]; |
| 640 | |
djm@openbsd.org | 41923ce | 2019-01-22 12:03:58 +0000 | [diff] [blame] | 641 | login_required = si->token.flags & CKF_LOGIN_REQUIRED; |
| 642 | |
| 643 | /* fail early before opening session */ |
djm@openbsd.org | 0846827 | 2019-10-01 10:22:53 +0000 | [diff] [blame] | 644 | if (login_required && !pkcs11_interactive && |
djm@openbsd.org | 7a7fdca | 2019-02-04 23:37:54 +0000 | [diff] [blame] | 645 | (pin == NULL || strlen(pin) == 0)) { |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 646 | error("pin required"); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 647 | return (-SSH_PKCS11_ERR_PIN_REQUIRED); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 648 | } |
| 649 | if ((rv = f->C_OpenSession(p->slotlist[slotidx], CKF_RW_SESSION| |
djm@openbsd.org | 41923ce | 2019-01-22 12:03:58 +0000 | [diff] [blame] | 650 | CKF_SERIAL_SESSION, NULL, NULL, &session)) != CKR_OK) { |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 651 | error("C_OpenSession failed: %lu", rv); |
| 652 | return (-1); |
| 653 | } |
djm@openbsd.org | 0846827 | 2019-10-01 10:22:53 +0000 | [diff] [blame] | 654 | if (login_required && pin != NULL && strlen(pin) != 0) { |
| 655 | rv = f->C_Login(session, user, (u_char *)pin, strlen(pin)); |
djm@openbsd.org | cb3bde3 | 2015-02-02 22:48:53 +0000 | [diff] [blame] | 656 | if (rv != CKR_OK && rv != CKR_USER_ALREADY_LOGGED_IN) { |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 657 | error("C_Login failed: %lu", rv); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 658 | ret = (rv == CKR_PIN_LOCKED) ? |
| 659 | -SSH_PKCS11_ERR_PIN_LOCKED : |
| 660 | -SSH_PKCS11_ERR_LOGIN_FAIL; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 661 | if ((rv = f->C_CloseSession(session)) != CKR_OK) |
| 662 | error("C_CloseSession failed: %lu", rv); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 663 | return (ret); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 664 | } |
djm@openbsd.org | 41923ce | 2019-01-22 12:03:58 +0000 | [diff] [blame] | 665 | si->logged_in = 1; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 666 | } |
djm@openbsd.org | 41923ce | 2019-01-22 12:03:58 +0000 | [diff] [blame] | 667 | si->session = session; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 668 | return (0); |
| 669 | } |
| 670 | |
Damien Miller | d2252c7 | 2013-11-04 07:41:48 +1100 | [diff] [blame] | 671 | static int |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 672 | pkcs11_key_included(struct sshkey ***keysp, int *nkeys, struct sshkey *key) |
Damien Miller | d2252c7 | 2013-11-04 07:41:48 +1100 | [diff] [blame] | 673 | { |
| 674 | int i; |
| 675 | |
| 676 | for (i = 0; i < *nkeys; i++) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 677 | if (sshkey_equal(key, (*keysp)[i])) |
Damien Miller | d2252c7 | 2013-11-04 07:41:48 +1100 | [diff] [blame] | 678 | return (1); |
| 679 | return (0); |
| 680 | } |
| 681 | |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 682 | #ifdef HAVE_EC_KEY_METHOD_NEW |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 683 | static struct sshkey * |
| 684 | pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 685 | CK_OBJECT_HANDLE *obj) |
| 686 | { |
| 687 | CK_ATTRIBUTE key_attr[3]; |
| 688 | CK_SESSION_HANDLE session; |
| 689 | CK_FUNCTION_LIST *f = NULL; |
| 690 | CK_RV rv; |
djm@openbsd.org | 24757c1 | 2019-01-20 23:01:59 +0000 | [diff] [blame] | 691 | ASN1_OCTET_STRING *octet = NULL; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 692 | EC_KEY *ec = NULL; |
| 693 | EC_GROUP *group = NULL; |
| 694 | struct sshkey *key = NULL; |
| 695 | const unsigned char *attrp = NULL; |
| 696 | int i; |
| 697 | int nid; |
| 698 | |
| 699 | memset(&key_attr, 0, sizeof(key_attr)); |
| 700 | key_attr[0].type = CKA_ID; |
| 701 | key_attr[1].type = CKA_EC_POINT; |
| 702 | key_attr[2].type = CKA_EC_PARAMS; |
| 703 | |
| 704 | session = p->slotinfo[slotidx].session; |
| 705 | f = p->function_list; |
| 706 | |
| 707 | /* figure out size of the attributes */ |
| 708 | rv = f->C_GetAttributeValue(session, *obj, key_attr, 3); |
| 709 | if (rv != CKR_OK) { |
| 710 | error("C_GetAttributeValue failed: %lu", rv); |
| 711 | return (NULL); |
| 712 | } |
| 713 | |
| 714 | /* |
| 715 | * Allow CKA_ID (always first attribute) to be empty, but |
| 716 | * ensure that none of the others are zero length. |
| 717 | * XXX assumes CKA_ID is always first. |
| 718 | */ |
| 719 | if (key_attr[1].ulValueLen == 0 || |
| 720 | key_attr[2].ulValueLen == 0) { |
| 721 | error("invalid attribute length"); |
| 722 | return (NULL); |
| 723 | } |
| 724 | |
| 725 | /* allocate buffers for attributes */ |
| 726 | for (i = 0; i < 3; i++) |
| 727 | if (key_attr[i].ulValueLen > 0) |
| 728 | key_attr[i].pValue = xcalloc(1, key_attr[i].ulValueLen); |
| 729 | |
| 730 | /* retrieve ID, public point and curve parameters of EC key */ |
| 731 | rv = f->C_GetAttributeValue(session, *obj, key_attr, 3); |
| 732 | if (rv != CKR_OK) { |
| 733 | error("C_GetAttributeValue failed: %lu", rv); |
| 734 | goto fail; |
| 735 | } |
| 736 | |
| 737 | ec = EC_KEY_new(); |
| 738 | if (ec == NULL) { |
| 739 | error("EC_KEY_new failed"); |
| 740 | goto fail; |
| 741 | } |
| 742 | |
| 743 | attrp = key_attr[2].pValue; |
| 744 | group = d2i_ECPKParameters(NULL, &attrp, key_attr[2].ulValueLen); |
| 745 | if (group == NULL) { |
| 746 | ossl_error("d2i_ECPKParameters failed"); |
| 747 | goto fail; |
| 748 | } |
| 749 | |
| 750 | if (EC_KEY_set_group(ec, group) == 0) { |
| 751 | ossl_error("EC_KEY_set_group failed"); |
| 752 | goto fail; |
| 753 | } |
| 754 | |
| 755 | if (key_attr[1].ulValueLen <= 2) { |
| 756 | error("CKA_EC_POINT too small"); |
| 757 | goto fail; |
| 758 | } |
| 759 | |
djm@openbsd.org | 24757c1 | 2019-01-20 23:01:59 +0000 | [diff] [blame] | 760 | attrp = key_attr[1].pValue; |
| 761 | octet = d2i_ASN1_OCTET_STRING(NULL, &attrp, key_attr[1].ulValueLen); |
| 762 | if (octet == NULL) { |
| 763 | ossl_error("d2i_ASN1_OCTET_STRING failed"); |
| 764 | goto fail; |
| 765 | } |
| 766 | attrp = octet->data; |
| 767 | if (o2i_ECPublicKey(&ec, &attrp, octet->length) == NULL) { |
| 768 | ossl_error("o2i_ECPublicKey failed"); |
| 769 | goto fail; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 770 | } |
| 771 | |
| 772 | nid = sshkey_ecdsa_key_to_nid(ec); |
| 773 | if (nid < 0) { |
| 774 | error("couldn't get curve nid"); |
| 775 | goto fail; |
| 776 | } |
| 777 | |
| 778 | if (pkcs11_ecdsa_wrap(p, slotidx, &key_attr[0], ec)) |
| 779 | goto fail; |
| 780 | |
| 781 | key = sshkey_new(KEY_UNSPEC); |
| 782 | if (key == NULL) { |
| 783 | error("sshkey_new failed"); |
| 784 | goto fail; |
| 785 | } |
| 786 | |
| 787 | key->ecdsa = ec; |
| 788 | key->ecdsa_nid = nid; |
| 789 | key->type = KEY_ECDSA; |
| 790 | key->flags |= SSHKEY_FLAG_EXT; |
| 791 | ec = NULL; /* now owned by key */ |
| 792 | |
| 793 | fail: |
| 794 | for (i = 0; i < 3; i++) |
| 795 | free(key_attr[i].pValue); |
| 796 | if (ec) |
| 797 | EC_KEY_free(ec); |
| 798 | if (group) |
| 799 | EC_GROUP_free(group); |
djm@openbsd.org | 24757c1 | 2019-01-20 23:01:59 +0000 | [diff] [blame] | 800 | if (octet) |
| 801 | ASN1_OCTET_STRING_free(octet); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 802 | |
| 803 | return (key); |
| 804 | } |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 805 | #endif /* HAVE_EC_KEY_METHOD_NEW */ |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 806 | |
| 807 | static struct sshkey * |
| 808 | pkcs11_fetch_rsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 809 | CK_OBJECT_HANDLE *obj) |
| 810 | { |
| 811 | CK_ATTRIBUTE key_attr[3]; |
| 812 | CK_SESSION_HANDLE session; |
| 813 | CK_FUNCTION_LIST *f = NULL; |
| 814 | CK_RV rv; |
| 815 | RSA *rsa = NULL; |
| 816 | BIGNUM *rsa_n, *rsa_e; |
| 817 | struct sshkey *key = NULL; |
| 818 | int i; |
| 819 | |
| 820 | memset(&key_attr, 0, sizeof(key_attr)); |
| 821 | key_attr[0].type = CKA_ID; |
| 822 | key_attr[1].type = CKA_MODULUS; |
| 823 | key_attr[2].type = CKA_PUBLIC_EXPONENT; |
| 824 | |
| 825 | session = p->slotinfo[slotidx].session; |
| 826 | f = p->function_list; |
| 827 | |
| 828 | /* figure out size of the attributes */ |
| 829 | rv = f->C_GetAttributeValue(session, *obj, key_attr, 3); |
| 830 | if (rv != CKR_OK) { |
| 831 | error("C_GetAttributeValue failed: %lu", rv); |
| 832 | return (NULL); |
| 833 | } |
| 834 | |
| 835 | /* |
| 836 | * Allow CKA_ID (always first attribute) to be empty, but |
| 837 | * ensure that none of the others are zero length. |
| 838 | * XXX assumes CKA_ID is always first. |
| 839 | */ |
| 840 | if (key_attr[1].ulValueLen == 0 || |
| 841 | key_attr[2].ulValueLen == 0) { |
| 842 | error("invalid attribute length"); |
| 843 | return (NULL); |
| 844 | } |
| 845 | |
| 846 | /* allocate buffers for attributes */ |
| 847 | for (i = 0; i < 3; i++) |
| 848 | if (key_attr[i].ulValueLen > 0) |
| 849 | key_attr[i].pValue = xcalloc(1, key_attr[i].ulValueLen); |
| 850 | |
| 851 | /* retrieve ID, modulus and public exponent of RSA key */ |
| 852 | rv = f->C_GetAttributeValue(session, *obj, key_attr, 3); |
| 853 | if (rv != CKR_OK) { |
| 854 | error("C_GetAttributeValue failed: %lu", rv); |
| 855 | goto fail; |
| 856 | } |
| 857 | |
| 858 | rsa = RSA_new(); |
| 859 | if (rsa == NULL) { |
| 860 | error("RSA_new failed"); |
| 861 | goto fail; |
| 862 | } |
| 863 | |
| 864 | rsa_n = BN_bin2bn(key_attr[1].pValue, key_attr[1].ulValueLen, NULL); |
| 865 | rsa_e = BN_bin2bn(key_attr[2].pValue, key_attr[2].ulValueLen, NULL); |
| 866 | if (rsa_n == NULL || rsa_e == NULL) { |
| 867 | error("BN_bin2bn failed"); |
| 868 | goto fail; |
| 869 | } |
| 870 | if (!RSA_set0_key(rsa, rsa_n, rsa_e, NULL)) |
| 871 | fatal("%s: set key", __func__); |
| 872 | rsa_n = rsa_e = NULL; /* transferred */ |
| 873 | |
| 874 | if (pkcs11_rsa_wrap(p, slotidx, &key_attr[0], rsa)) |
| 875 | goto fail; |
| 876 | |
| 877 | key = sshkey_new(KEY_UNSPEC); |
| 878 | if (key == NULL) { |
| 879 | error("sshkey_new failed"); |
| 880 | goto fail; |
| 881 | } |
| 882 | |
| 883 | key->rsa = rsa; |
| 884 | key->type = KEY_RSA; |
| 885 | key->flags |= SSHKEY_FLAG_EXT; |
| 886 | rsa = NULL; /* now owned by key */ |
| 887 | |
| 888 | fail: |
| 889 | for (i = 0; i < 3; i++) |
| 890 | free(key_attr[i].pValue); |
| 891 | RSA_free(rsa); |
| 892 | |
| 893 | return (key); |
| 894 | } |
| 895 | |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 896 | static int |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 897 | pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx, |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 898 | CK_OBJECT_HANDLE *obj, struct sshkey **keyp, char **labelp) |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 899 | { |
| 900 | CK_ATTRIBUTE cert_attr[3]; |
| 901 | CK_SESSION_HANDLE session; |
| 902 | CK_FUNCTION_LIST *f = NULL; |
| 903 | CK_RV rv; |
| 904 | X509 *x509 = NULL; |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 905 | X509_NAME *x509_name = NULL; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 906 | EVP_PKEY *evp; |
| 907 | RSA *rsa = NULL; |
Darren Tucker | 97370f6 | 2019-05-17 10:54:51 +1000 | [diff] [blame] | 908 | #ifdef OPENSSL_HAS_ECC |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 909 | EC_KEY *ec = NULL; |
Darren Tucker | 97370f6 | 2019-05-17 10:54:51 +1000 | [diff] [blame] | 910 | #endif |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 911 | struct sshkey *key = NULL; |
| 912 | int i; |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 913 | #ifdef HAVE_EC_KEY_METHOD_NEW |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 914 | int nid; |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 915 | #endif |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 916 | const u_char *cp; |
| 917 | char *subject = NULL; |
| 918 | |
| 919 | *keyp = NULL; |
| 920 | *labelp = NULL; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 921 | |
| 922 | memset(&cert_attr, 0, sizeof(cert_attr)); |
| 923 | cert_attr[0].type = CKA_ID; |
| 924 | cert_attr[1].type = CKA_SUBJECT; |
| 925 | cert_attr[2].type = CKA_VALUE; |
| 926 | |
| 927 | session = p->slotinfo[slotidx].session; |
| 928 | f = p->function_list; |
| 929 | |
| 930 | /* figure out size of the attributes */ |
| 931 | rv = f->C_GetAttributeValue(session, *obj, cert_attr, 3); |
| 932 | if (rv != CKR_OK) { |
| 933 | error("C_GetAttributeValue failed: %lu", rv); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 934 | return -1; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 935 | } |
| 936 | |
| 937 | /* |
| 938 | * Allow CKA_ID (always first attribute) to be empty, but |
| 939 | * ensure that none of the others are zero length. |
| 940 | * XXX assumes CKA_ID is always first. |
| 941 | */ |
| 942 | if (cert_attr[1].ulValueLen == 0 || |
| 943 | cert_attr[2].ulValueLen == 0) { |
| 944 | error("invalid attribute length"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 945 | return -1; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 946 | } |
| 947 | |
| 948 | /* allocate buffers for attributes */ |
| 949 | for (i = 0; i < 3; i++) |
| 950 | if (cert_attr[i].ulValueLen > 0) |
| 951 | cert_attr[i].pValue = xcalloc(1, cert_attr[i].ulValueLen); |
| 952 | |
| 953 | /* retrieve ID, subject and value of certificate */ |
| 954 | rv = f->C_GetAttributeValue(session, *obj, cert_attr, 3); |
| 955 | if (rv != CKR_OK) { |
| 956 | error("C_GetAttributeValue failed: %lu", rv); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 957 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 958 | } |
| 959 | |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 960 | /* Decode DER-encoded cert subject */ |
| 961 | cp = cert_attr[2].pValue; |
| 962 | if ((x509_name = d2i_X509_NAME(NULL, &cp, |
| 963 | cert_attr[1].ulValueLen)) == NULL || |
| 964 | (subject = X509_NAME_oneline(x509_name, NULL, 0)) == NULL) |
| 965 | subject = xstrdup("invalid subject"); |
| 966 | X509_NAME_free(x509_name); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 967 | |
| 968 | cp = cert_attr[2].pValue; |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 969 | if ((x509 = d2i_X509(NULL, &cp, cert_attr[2].ulValueLen)) == NULL) { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 970 | error("d2i_x509 failed"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 971 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 972 | } |
| 973 | |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 974 | if ((evp = X509_get_pubkey(x509)) == NULL) { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 975 | error("X509_get_pubkey failed"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 976 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 977 | } |
| 978 | |
| 979 | if (EVP_PKEY_base_id(evp) == EVP_PKEY_RSA) { |
| 980 | if (EVP_PKEY_get0_RSA(evp) == NULL) { |
| 981 | error("invalid x509; no rsa key"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 982 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 983 | } |
| 984 | if ((rsa = RSAPublicKey_dup(EVP_PKEY_get0_RSA(evp))) == NULL) { |
| 985 | error("RSAPublicKey_dup failed"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 986 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 987 | } |
| 988 | |
| 989 | if (pkcs11_rsa_wrap(p, slotidx, &cert_attr[0], rsa)) |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 990 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 991 | |
| 992 | key = sshkey_new(KEY_UNSPEC); |
| 993 | if (key == NULL) { |
| 994 | error("sshkey_new failed"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 995 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 996 | } |
| 997 | |
| 998 | key->rsa = rsa; |
| 999 | key->type = KEY_RSA; |
| 1000 | key->flags |= SSHKEY_FLAG_EXT; |
| 1001 | rsa = NULL; /* now owned by key */ |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 1002 | #ifdef HAVE_EC_KEY_METHOD_NEW |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1003 | } else if (EVP_PKEY_base_id(evp) == EVP_PKEY_EC) { |
djm@openbsd.org | 8a24675 | 2019-01-20 23:03:26 +0000 | [diff] [blame] | 1004 | if (EVP_PKEY_get0_EC_KEY(evp) == NULL) { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1005 | error("invalid x509; no ec key"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1006 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1007 | } |
djm@openbsd.org | 8a24675 | 2019-01-20 23:03:26 +0000 | [diff] [blame] | 1008 | if ((ec = EC_KEY_dup(EVP_PKEY_get0_EC_KEY(evp))) == NULL) { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1009 | error("EC_KEY_dup failed"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1010 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1011 | } |
| 1012 | |
| 1013 | nid = sshkey_ecdsa_key_to_nid(ec); |
| 1014 | if (nid < 0) { |
| 1015 | error("couldn't get curve nid"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1016 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1017 | } |
| 1018 | |
| 1019 | if (pkcs11_ecdsa_wrap(p, slotidx, &cert_attr[0], ec)) |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1020 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1021 | |
| 1022 | key = sshkey_new(KEY_UNSPEC); |
| 1023 | if (key == NULL) { |
| 1024 | error("sshkey_new failed"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1025 | goto out; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1026 | } |
| 1027 | |
| 1028 | key->ecdsa = ec; |
| 1029 | key->ecdsa_nid = nid; |
| 1030 | key->type = KEY_ECDSA; |
| 1031 | key->flags |= SSHKEY_FLAG_EXT; |
| 1032 | ec = NULL; /* now owned by key */ |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 1033 | #endif /* HAVE_EC_KEY_METHOD_NEW */ |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1034 | } else { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1035 | error("unknown certificate key type"); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1036 | goto out; |
| 1037 | } |
| 1038 | out: |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1039 | for (i = 0; i < 3; i++) |
| 1040 | free(cert_attr[i].pValue); |
| 1041 | X509_free(x509); |
| 1042 | RSA_free(rsa); |
Darren Tucker | 97370f6 | 2019-05-17 10:54:51 +1000 | [diff] [blame] | 1043 | #ifdef OPENSSL_HAS_ECC |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1044 | EC_KEY_free(ec); |
Darren Tucker | 97370f6 | 2019-05-17 10:54:51 +1000 | [diff] [blame] | 1045 | #endif |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1046 | if (key == NULL) { |
| 1047 | free(subject); |
| 1048 | return -1; |
| 1049 | } |
| 1050 | /* success */ |
| 1051 | *keyp = key; |
| 1052 | *labelp = subject; |
| 1053 | return 0; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1054 | } |
| 1055 | |
| 1056 | #if 0 |
Damien Miller | d2252c7 | 2013-11-04 07:41:48 +1100 | [diff] [blame] | 1057 | static int |
djm@openbsd.org | 482d23b | 2018-09-13 02:08:33 +0000 | [diff] [blame] | 1058 | have_rsa_key(const RSA *rsa) |
| 1059 | { |
| 1060 | const BIGNUM *rsa_n, *rsa_e; |
| 1061 | |
| 1062 | RSA_get0_key(rsa, &rsa_n, &rsa_e, NULL); |
| 1063 | return rsa_n != NULL && rsa_e != NULL; |
| 1064 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1065 | #endif |
djm@openbsd.org | 482d23b | 2018-09-13 02:08:33 +0000 | [diff] [blame] | 1066 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1067 | /* |
| 1068 | * lookup certificates for token in slot identified by slotidx, |
| 1069 | * add 'wrapped' public keys to the 'keysp' array and increment nkeys. |
| 1070 | * keysp points to an (possibly empty) array with *nkeys keys. |
| 1071 | */ |
djm@openbsd.org | 482d23b | 2018-09-13 02:08:33 +0000 | [diff] [blame] | 1072 | static int |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1073 | pkcs11_fetch_certs(struct pkcs11_provider *p, CK_ULONG slotidx, |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1074 | struct sshkey ***keysp, char ***labelsp, int *nkeys) |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1075 | { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1076 | struct sshkey *key = NULL; |
| 1077 | CK_OBJECT_CLASS key_class; |
| 1078 | CK_ATTRIBUTE key_attr[1]; |
| 1079 | CK_SESSION_HANDLE session; |
| 1080 | CK_FUNCTION_LIST *f = NULL; |
| 1081 | CK_RV rv; |
| 1082 | CK_OBJECT_HANDLE obj; |
| 1083 | CK_ULONG n = 0; |
| 1084 | int ret = -1; |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1085 | char *label; |
Tim Rice | 179eee0 | 2010-03-04 12:48:05 -0800 | [diff] [blame] | 1086 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1087 | memset(&key_attr, 0, sizeof(key_attr)); |
| 1088 | memset(&obj, 0, sizeof(obj)); |
| 1089 | |
| 1090 | key_class = CKO_CERTIFICATE; |
| 1091 | key_attr[0].type = CKA_CLASS; |
| 1092 | key_attr[0].pValue = &key_class; |
| 1093 | key_attr[0].ulValueLen = sizeof(key_class); |
| 1094 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1095 | session = p->slotinfo[slotidx].session; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1096 | f = p->function_list; |
| 1097 | |
| 1098 | rv = f->C_FindObjectsInit(session, key_attr, 1); |
| 1099 | if (rv != CKR_OK) { |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1100 | error("C_FindObjectsInit failed: %lu", rv); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1101 | goto fail; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1102 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1103 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1104 | while (1) { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1105 | CK_CERTIFICATE_TYPE ck_cert_type; |
| 1106 | |
| 1107 | rv = f->C_FindObjects(session, &obj, 1, &n); |
| 1108 | if (rv != CKR_OK) { |
| 1109 | error("C_FindObjects failed: %lu", rv); |
| 1110 | goto fail; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1111 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1112 | if (n == 0) |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1113 | break; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1114 | |
| 1115 | memset(&ck_cert_type, 0, sizeof(ck_cert_type)); |
| 1116 | memset(&key_attr, 0, sizeof(key_attr)); |
| 1117 | key_attr[0].type = CKA_CERTIFICATE_TYPE; |
| 1118 | key_attr[0].pValue = &ck_cert_type; |
| 1119 | key_attr[0].ulValueLen = sizeof(ck_cert_type); |
| 1120 | |
| 1121 | rv = f->C_GetAttributeValue(session, obj, key_attr, 1); |
| 1122 | if (rv != CKR_OK) { |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1123 | error("C_GetAttributeValue failed: %lu", rv); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1124 | goto fail; |
djm@openbsd.org | 63ebcd0 | 2015-07-18 08:02:17 +0000 | [diff] [blame] | 1125 | } |
| 1126 | |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1127 | key = NULL; |
| 1128 | label = NULL; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1129 | switch (ck_cert_type) { |
| 1130 | case CKC_X_509: |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1131 | if (pkcs11_fetch_x509_pubkey(p, slotidx, &obj, |
| 1132 | &key, &label) != 0) { |
| 1133 | error("failed to fetch key"); |
| 1134 | continue; |
| 1135 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1136 | break; |
| 1137 | default: |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1138 | error("skipping unsupported certificate type %lu", |
| 1139 | ck_cert_type); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1140 | continue; |
| 1141 | } |
| 1142 | |
| 1143 | if (pkcs11_key_included(keysp, nkeys, key)) { |
| 1144 | sshkey_free(key); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1145 | } else { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1146 | /* expand key array and add key */ |
| 1147 | *keysp = xrecallocarray(*keysp, *nkeys, |
| 1148 | *nkeys + 1, sizeof(struct sshkey *)); |
| 1149 | (*keysp)[*nkeys] = key; |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1150 | if (labelsp != NULL) { |
| 1151 | *labelsp = xrecallocarray(*labelsp, *nkeys, |
| 1152 | *nkeys + 1, sizeof(char *)); |
| 1153 | (*labelsp)[*nkeys] = xstrdup((char *)label); |
| 1154 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1155 | *nkeys = *nkeys + 1; |
| 1156 | debug("have %d keys", *nkeys); |
Damien Miller | d2252c7 | 2013-11-04 07:41:48 +1100 | [diff] [blame] | 1157 | } |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1158 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1159 | |
| 1160 | ret = 0; |
| 1161 | fail: |
| 1162 | rv = f->C_FindObjectsFinal(session); |
| 1163 | if (rv != CKR_OK) { |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1164 | error("C_FindObjectsFinal failed: %lu", rv); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1165 | ret = -1; |
| 1166 | } |
| 1167 | |
| 1168 | return (ret); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1169 | } |
| 1170 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1171 | /* |
| 1172 | * lookup public keys for token in slot identified by slotidx, |
| 1173 | * add 'wrapped' public keys to the 'keysp' array and increment nkeys. |
| 1174 | * keysp points to an (possibly empty) array with *nkeys keys. |
| 1175 | */ |
| 1176 | static int |
| 1177 | pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx, |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1178 | struct sshkey ***keysp, char ***labelsp, int *nkeys) |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1179 | { |
| 1180 | struct sshkey *key = NULL; |
| 1181 | CK_OBJECT_CLASS key_class; |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1182 | CK_ATTRIBUTE key_attr[2]; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1183 | CK_SESSION_HANDLE session; |
| 1184 | CK_FUNCTION_LIST *f = NULL; |
| 1185 | CK_RV rv; |
| 1186 | CK_OBJECT_HANDLE obj; |
| 1187 | CK_ULONG n = 0; |
| 1188 | int ret = -1; |
| 1189 | |
| 1190 | memset(&key_attr, 0, sizeof(key_attr)); |
| 1191 | memset(&obj, 0, sizeof(obj)); |
| 1192 | |
| 1193 | key_class = CKO_PUBLIC_KEY; |
| 1194 | key_attr[0].type = CKA_CLASS; |
| 1195 | key_attr[0].pValue = &key_class; |
| 1196 | key_attr[0].ulValueLen = sizeof(key_class); |
| 1197 | |
| 1198 | session = p->slotinfo[slotidx].session; |
| 1199 | f = p->function_list; |
| 1200 | |
| 1201 | rv = f->C_FindObjectsInit(session, key_attr, 1); |
| 1202 | if (rv != CKR_OK) { |
| 1203 | error("C_FindObjectsInit failed: %lu", rv); |
| 1204 | goto fail; |
| 1205 | } |
| 1206 | |
| 1207 | while (1) { |
| 1208 | CK_KEY_TYPE ck_key_type; |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1209 | CK_UTF8CHAR label[256]; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1210 | |
| 1211 | rv = f->C_FindObjects(session, &obj, 1, &n); |
| 1212 | if (rv != CKR_OK) { |
| 1213 | error("C_FindObjects failed: %lu", rv); |
| 1214 | goto fail; |
| 1215 | } |
| 1216 | if (n == 0) |
| 1217 | break; |
| 1218 | |
| 1219 | memset(&ck_key_type, 0, sizeof(ck_key_type)); |
| 1220 | memset(&key_attr, 0, sizeof(key_attr)); |
| 1221 | key_attr[0].type = CKA_KEY_TYPE; |
| 1222 | key_attr[0].pValue = &ck_key_type; |
| 1223 | key_attr[0].ulValueLen = sizeof(ck_key_type); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1224 | key_attr[1].type = CKA_LABEL; |
| 1225 | key_attr[1].pValue = &label; |
| 1226 | key_attr[1].ulValueLen = sizeof(label) - 1; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1227 | |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1228 | rv = f->C_GetAttributeValue(session, obj, key_attr, 2); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1229 | if (rv != CKR_OK) { |
| 1230 | error("C_GetAttributeValue failed: %lu", rv); |
| 1231 | goto fail; |
| 1232 | } |
| 1233 | |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1234 | label[key_attr[1].ulValueLen] = '\0'; |
| 1235 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1236 | switch (ck_key_type) { |
| 1237 | case CKK_RSA: |
| 1238 | key = pkcs11_fetch_rsa_pubkey(p, slotidx, &obj); |
| 1239 | break; |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 1240 | #ifdef HAVE_EC_KEY_METHOD_NEW |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1241 | case CKK_ECDSA: |
| 1242 | key = pkcs11_fetch_ecdsa_pubkey(p, slotidx, &obj); |
| 1243 | break; |
Damien Miller | e2cb445 | 2019-01-21 11:32:28 +1100 | [diff] [blame] | 1244 | #endif /* HAVE_EC_KEY_METHOD_NEW */ |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1245 | default: |
| 1246 | /* XXX print key type? */ |
markus@openbsd.org | 2aee9a4 | 2019-03-08 17:24:43 +0000 | [diff] [blame] | 1247 | key = NULL; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1248 | error("skipping unsupported key type"); |
| 1249 | } |
| 1250 | |
| 1251 | if (key == NULL) { |
| 1252 | error("failed to fetch key"); |
| 1253 | continue; |
| 1254 | } |
| 1255 | |
| 1256 | if (pkcs11_key_included(keysp, nkeys, key)) { |
| 1257 | sshkey_free(key); |
| 1258 | } else { |
| 1259 | /* expand key array and add key */ |
| 1260 | *keysp = xrecallocarray(*keysp, *nkeys, |
| 1261 | *nkeys + 1, sizeof(struct sshkey *)); |
| 1262 | (*keysp)[*nkeys] = key; |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1263 | if (labelsp != NULL) { |
| 1264 | *labelsp = xrecallocarray(*labelsp, *nkeys, |
| 1265 | *nkeys + 1, sizeof(char *)); |
| 1266 | (*labelsp)[*nkeys] = xstrdup((char *)label); |
| 1267 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1268 | *nkeys = *nkeys + 1; |
| 1269 | debug("have %d keys", *nkeys); |
| 1270 | } |
| 1271 | } |
| 1272 | |
| 1273 | ret = 0; |
| 1274 | fail: |
| 1275 | rv = f->C_FindObjectsFinal(session); |
| 1276 | if (rv != CKR_OK) { |
| 1277 | error("C_FindObjectsFinal failed: %lu", rv); |
| 1278 | ret = -1; |
| 1279 | } |
| 1280 | |
| 1281 | return (ret); |
| 1282 | } |
| 1283 | |
| 1284 | #ifdef WITH_PKCS11_KEYGEN |
| 1285 | #define FILL_ATTR(attr, idx, typ, val, len) \ |
| 1286 | { (attr[idx]).type=(typ); (attr[idx]).pValue=(val); (attr[idx]).ulValueLen=len; idx++; } |
| 1287 | |
| 1288 | static struct sshkey * |
| 1289 | pkcs11_rsa_generate_private_key(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 1290 | char *label, CK_ULONG bits, CK_BYTE keyid, u_int32_t *err) |
| 1291 | { |
| 1292 | struct pkcs11_slotinfo *si; |
| 1293 | char *plabel = label ? label : ""; |
| 1294 | int npub = 0, npriv = 0; |
| 1295 | CK_RV rv; |
| 1296 | CK_FUNCTION_LIST *f; |
| 1297 | CK_SESSION_HANDLE session; |
| 1298 | CK_BBOOL true_val = CK_TRUE, false_val = CK_FALSE; |
| 1299 | CK_OBJECT_HANDLE pubKey, privKey; |
| 1300 | CK_ATTRIBUTE tpub[16], tpriv[16]; |
| 1301 | CK_MECHANISM mech = { |
| 1302 | CKM_RSA_PKCS_KEY_PAIR_GEN, NULL_PTR, 0 |
| 1303 | }; |
| 1304 | CK_BYTE pubExponent[] = { |
| 1305 | 0x01, 0x00, 0x01 /* RSA_F4 in bytes */ |
| 1306 | }; |
| 1307 | pubkey_filter[0].pValue = &pubkey_class; |
| 1308 | cert_filter[0].pValue = &cert_class; |
| 1309 | |
| 1310 | *err = 0; |
| 1311 | |
| 1312 | FILL_ATTR(tpub, npub, CKA_TOKEN, &true_val, sizeof(true_val)); |
| 1313 | FILL_ATTR(tpub, npub, CKA_LABEL, plabel, strlen(plabel)); |
| 1314 | FILL_ATTR(tpub, npub, CKA_ENCRYPT, &false_val, sizeof(false_val)); |
| 1315 | FILL_ATTR(tpub, npub, CKA_VERIFY, &true_val, sizeof(true_val)); |
| 1316 | FILL_ATTR(tpub, npub, CKA_VERIFY_RECOVER, &false_val, |
| 1317 | sizeof(false_val)); |
| 1318 | FILL_ATTR(tpub, npub, CKA_WRAP, &false_val, sizeof(false_val)); |
| 1319 | FILL_ATTR(tpub, npub, CKA_DERIVE, &false_val, sizeof(false_val)); |
| 1320 | FILL_ATTR(tpub, npub, CKA_MODULUS_BITS, &bits, sizeof(bits)); |
| 1321 | FILL_ATTR(tpub, npub, CKA_PUBLIC_EXPONENT, pubExponent, |
| 1322 | sizeof(pubExponent)); |
| 1323 | FILL_ATTR(tpub, npub, CKA_ID, &keyid, sizeof(keyid)); |
| 1324 | |
| 1325 | FILL_ATTR(tpriv, npriv, CKA_TOKEN, &true_val, sizeof(true_val)); |
| 1326 | FILL_ATTR(tpriv, npriv, CKA_LABEL, plabel, strlen(plabel)); |
| 1327 | FILL_ATTR(tpriv, npriv, CKA_PRIVATE, &true_val, sizeof(true_val)); |
| 1328 | FILL_ATTR(tpriv, npriv, CKA_SENSITIVE, &true_val, sizeof(true_val)); |
| 1329 | FILL_ATTR(tpriv, npriv, CKA_DECRYPT, &false_val, sizeof(false_val)); |
| 1330 | FILL_ATTR(tpriv, npriv, CKA_SIGN, &true_val, sizeof(true_val)); |
| 1331 | FILL_ATTR(tpriv, npriv, CKA_SIGN_RECOVER, &false_val, |
| 1332 | sizeof(false_val)); |
| 1333 | FILL_ATTR(tpriv, npriv, CKA_UNWRAP, &false_val, sizeof(false_val)); |
| 1334 | FILL_ATTR(tpriv, npriv, CKA_DERIVE, &false_val, sizeof(false_val)); |
| 1335 | FILL_ATTR(tpriv, npriv, CKA_ID, &keyid, sizeof(keyid)); |
| 1336 | |
| 1337 | f = p->function_list; |
| 1338 | si = &p->slotinfo[slotidx]; |
| 1339 | session = si->session; |
| 1340 | |
| 1341 | if ((rv = f->C_GenerateKeyPair(session, &mech, tpub, npub, tpriv, npriv, |
| 1342 | &pubKey, &privKey)) != CKR_OK) { |
| 1343 | error("%s: key generation failed: error 0x%lx", __func__, rv); |
| 1344 | *err = rv; |
| 1345 | return NULL; |
| 1346 | } |
| 1347 | |
| 1348 | return pkcs11_fetch_rsa_pubkey(p, slotidx, &pubKey); |
| 1349 | } |
| 1350 | |
| 1351 | static int |
| 1352 | pkcs11_decode_hex(const char *hex, unsigned char **dest, size_t *rlen) |
| 1353 | { |
| 1354 | size_t i, len; |
| 1355 | char ptr[3]; |
| 1356 | |
| 1357 | if (dest) |
| 1358 | *dest = NULL; |
| 1359 | if (rlen) |
| 1360 | *rlen = 0; |
| 1361 | |
| 1362 | if ((len = strlen(hex)) % 2) |
| 1363 | return -1; |
| 1364 | len /= 2; |
| 1365 | |
| 1366 | *dest = xmalloc(len); |
| 1367 | |
| 1368 | ptr[2] = '\0'; |
| 1369 | for (i = 0; i < len; i++) { |
| 1370 | ptr[0] = hex[2 * i]; |
| 1371 | ptr[1] = hex[(2 * i) + 1]; |
| 1372 | if (!isxdigit(ptr[0]) || !isxdigit(ptr[1])) |
| 1373 | return -1; |
| 1374 | (*dest)[i] = (unsigned char)strtoul(ptr, NULL, 16); |
| 1375 | } |
| 1376 | |
| 1377 | if (rlen) |
| 1378 | *rlen = len; |
| 1379 | |
| 1380 | return 0; |
| 1381 | } |
| 1382 | |
| 1383 | static struct ec_curve_info { |
| 1384 | const char *name; |
| 1385 | const char *oid; |
| 1386 | const char *oid_encoded; |
| 1387 | size_t size; |
| 1388 | } ec_curve_infos[] = { |
| 1389 | {"prime256v1", "1.2.840.10045.3.1.7", "06082A8648CE3D030107", 256}, |
| 1390 | {"secp384r1", "1.3.132.0.34", "06052B81040022", 384}, |
| 1391 | {"secp521r1", "1.3.132.0.35", "06052B81040023", 521}, |
djm@openbsd.org | 6529409 | 2019-01-20 23:11:11 +0000 | [diff] [blame] | 1392 | {NULL, NULL, NULL, 0}, |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1393 | }; |
| 1394 | |
| 1395 | static struct sshkey * |
| 1396 | pkcs11_ecdsa_generate_private_key(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 1397 | char *label, CK_ULONG bits, CK_BYTE keyid, u_int32_t *err) |
| 1398 | { |
| 1399 | struct pkcs11_slotinfo *si; |
| 1400 | char *plabel = label ? label : ""; |
| 1401 | int i; |
| 1402 | size_t ecparams_size; |
| 1403 | unsigned char *ecparams = NULL; |
| 1404 | int npub = 0, npriv = 0; |
| 1405 | CK_RV rv; |
| 1406 | CK_FUNCTION_LIST *f; |
| 1407 | CK_SESSION_HANDLE session; |
| 1408 | CK_BBOOL true_val = CK_TRUE, false_val = CK_FALSE; |
| 1409 | CK_OBJECT_HANDLE pubKey, privKey; |
| 1410 | CK_MECHANISM mech = { |
| 1411 | CKM_EC_KEY_PAIR_GEN, NULL_PTR, 0 |
| 1412 | }; |
| 1413 | CK_ATTRIBUTE tpub[16], tpriv[16]; |
| 1414 | |
| 1415 | *err = 0; |
| 1416 | |
| 1417 | for (i = 0; ec_curve_infos[i].name; i++) { |
| 1418 | if (ec_curve_infos[i].size == bits) |
| 1419 | break; |
| 1420 | } |
| 1421 | if (!ec_curve_infos[i].name) { |
| 1422 | error("%s: invalid key size %lu", __func__, bits); |
| 1423 | return NULL; |
| 1424 | } |
| 1425 | if (pkcs11_decode_hex(ec_curve_infos[i].oid_encoded, &ecparams, |
| 1426 | &ecparams_size) == -1) { |
| 1427 | error("%s: invalid oid", __func__); |
| 1428 | return NULL; |
| 1429 | } |
| 1430 | |
| 1431 | FILL_ATTR(tpub, npub, CKA_TOKEN, &true_val, sizeof(true_val)); |
| 1432 | FILL_ATTR(tpub, npub, CKA_LABEL, plabel, strlen(plabel)); |
| 1433 | FILL_ATTR(tpub, npub, CKA_ENCRYPT, &false_val, sizeof(false_val)); |
| 1434 | FILL_ATTR(tpub, npub, CKA_VERIFY, &true_val, sizeof(true_val)); |
| 1435 | FILL_ATTR(tpub, npub, CKA_VERIFY_RECOVER, &false_val, |
| 1436 | sizeof(false_val)); |
| 1437 | FILL_ATTR(tpub, npub, CKA_WRAP, &false_val, sizeof(false_val)); |
| 1438 | FILL_ATTR(tpub, npub, CKA_DERIVE, &false_val, sizeof(false_val)); |
| 1439 | FILL_ATTR(tpub, npub, CKA_EC_PARAMS, ecparams, ecparams_size); |
| 1440 | FILL_ATTR(tpub, npub, CKA_ID, &keyid, sizeof(keyid)); |
| 1441 | |
| 1442 | FILL_ATTR(tpriv, npriv, CKA_TOKEN, &true_val, sizeof(true_val)); |
| 1443 | FILL_ATTR(tpriv, npriv, CKA_LABEL, plabel, strlen(plabel)); |
| 1444 | FILL_ATTR(tpriv, npriv, CKA_PRIVATE, &true_val, sizeof(true_val)); |
| 1445 | FILL_ATTR(tpriv, npriv, CKA_SENSITIVE, &true_val, sizeof(true_val)); |
| 1446 | FILL_ATTR(tpriv, npriv, CKA_DECRYPT, &false_val, sizeof(false_val)); |
| 1447 | FILL_ATTR(tpriv, npriv, CKA_SIGN, &true_val, sizeof(true_val)); |
| 1448 | FILL_ATTR(tpriv, npriv, CKA_SIGN_RECOVER, &false_val, |
| 1449 | sizeof(false_val)); |
| 1450 | FILL_ATTR(tpriv, npriv, CKA_UNWRAP, &false_val, sizeof(false_val)); |
| 1451 | FILL_ATTR(tpriv, npriv, CKA_DERIVE, &false_val, sizeof(false_val)); |
| 1452 | FILL_ATTR(tpriv, npriv, CKA_ID, &keyid, sizeof(keyid)); |
| 1453 | |
| 1454 | f = p->function_list; |
| 1455 | si = &p->slotinfo[slotidx]; |
| 1456 | session = si->session; |
| 1457 | |
| 1458 | if ((rv = f->C_GenerateKeyPair(session, &mech, tpub, npub, tpriv, npriv, |
| 1459 | &pubKey, &privKey)) != CKR_OK) { |
| 1460 | error("%s: key generation failed: error 0x%lx", __func__, rv); |
| 1461 | *err = rv; |
| 1462 | return NULL; |
| 1463 | } |
| 1464 | |
| 1465 | return pkcs11_fetch_ecdsa_pubkey(p, slotidx, &pubKey); |
| 1466 | } |
| 1467 | #endif /* WITH_PKCS11_KEYGEN */ |
| 1468 | |
| 1469 | /* |
| 1470 | * register a new provider, fails if provider already exists. if |
| 1471 | * keyp is provided, fetch keys. |
| 1472 | */ |
| 1473 | static int |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1474 | pkcs11_register_provider(char *provider_id, char *pin, |
| 1475 | struct sshkey ***keyp, char ***labelsp, |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1476 | struct pkcs11_provider **providerp, CK_ULONG user) |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1477 | { |
| 1478 | int nkeys, need_finalize = 0; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1479 | int ret = -1; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1480 | struct pkcs11_provider *p = NULL; |
| 1481 | void *handle = NULL; |
| 1482 | CK_RV (*getfunctionlist)(CK_FUNCTION_LIST **); |
| 1483 | CK_RV rv; |
| 1484 | CK_FUNCTION_LIST *f = NULL; |
| 1485 | CK_TOKEN_INFO *token; |
| 1486 | CK_ULONG i; |
| 1487 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1488 | if (providerp == NULL) |
| 1489 | goto fail; |
| 1490 | *providerp = NULL; |
| 1491 | |
| 1492 | if (keyp != NULL) |
| 1493 | *keyp = NULL; |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1494 | if (labelsp != NULL) |
| 1495 | *labelsp = NULL; |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1496 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1497 | if (pkcs11_provider_lookup(provider_id) != NULL) { |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1498 | debug("%s: provider already registered: %s", |
| 1499 | __func__, provider_id); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1500 | goto fail; |
| 1501 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1502 | /* open shared pkcs11-library */ |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1503 | if ((handle = dlopen(provider_id, RTLD_NOW)) == NULL) { |
| 1504 | error("dlopen %s failed: %s", provider_id, dlerror()); |
| 1505 | goto fail; |
| 1506 | } |
| 1507 | if ((getfunctionlist = dlsym(handle, "C_GetFunctionList")) == NULL) { |
| 1508 | error("dlsym(C_GetFunctionList) failed: %s", dlerror()); |
| 1509 | goto fail; |
| 1510 | } |
| 1511 | p = xcalloc(1, sizeof(*p)); |
| 1512 | p->name = xstrdup(provider_id); |
| 1513 | p->handle = handle; |
| 1514 | /* setup the pkcs11 callbacks */ |
| 1515 | if ((rv = (*getfunctionlist)(&f)) != CKR_OK) { |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1516 | error("C_GetFunctionList for provider %s failed: %lu", |
| 1517 | provider_id, rv); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1518 | goto fail; |
| 1519 | } |
| 1520 | p->function_list = f; |
| 1521 | if ((rv = f->C_Initialize(NULL)) != CKR_OK) { |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1522 | error("C_Initialize for provider %s failed: %lu", |
| 1523 | provider_id, rv); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1524 | goto fail; |
| 1525 | } |
| 1526 | need_finalize = 1; |
| 1527 | if ((rv = f->C_GetInfo(&p->info)) != CKR_OK) { |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1528 | error("C_GetInfo for provider %s failed: %lu", |
| 1529 | provider_id, rv); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1530 | goto fail; |
| 1531 | } |
| 1532 | rmspace(p->info.manufacturerID, sizeof(p->info.manufacturerID)); |
| 1533 | rmspace(p->info.libraryDescription, sizeof(p->info.libraryDescription)); |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1534 | debug("provider %s: manufacturerID <%s> cryptokiVersion %d.%d" |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1535 | " libraryDescription <%s> libraryVersion %d.%d", |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1536 | provider_id, |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1537 | p->info.manufacturerID, |
| 1538 | p->info.cryptokiVersion.major, |
| 1539 | p->info.cryptokiVersion.minor, |
| 1540 | p->info.libraryDescription, |
| 1541 | p->info.libraryVersion.major, |
| 1542 | p->info.libraryVersion.minor); |
| 1543 | if ((rv = f->C_GetSlotList(CK_TRUE, NULL, &p->nslots)) != CKR_OK) { |
| 1544 | error("C_GetSlotList failed: %lu", rv); |
| 1545 | goto fail; |
| 1546 | } |
| 1547 | if (p->nslots == 0) { |
djm@openbsd.org | b52c0c2 | 2019-09-02 00:19:25 +0000 | [diff] [blame] | 1548 | debug("%s: provider %s returned no slots", __func__, |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1549 | provider_id); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1550 | ret = -SSH_PKCS11_ERR_NO_SLOTS; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1551 | goto fail; |
| 1552 | } |
| 1553 | p->slotlist = xcalloc(p->nslots, sizeof(CK_SLOT_ID)); |
| 1554 | if ((rv = f->C_GetSlotList(CK_TRUE, p->slotlist, &p->nslots)) |
| 1555 | != CKR_OK) { |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1556 | error("C_GetSlotList for provider %s failed: %lu", |
| 1557 | provider_id, rv); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1558 | goto fail; |
| 1559 | } |
| 1560 | p->slotinfo = xcalloc(p->nslots, sizeof(struct pkcs11_slotinfo)); |
| 1561 | p->valid = 1; |
| 1562 | nkeys = 0; |
| 1563 | for (i = 0; i < p->nslots; i++) { |
| 1564 | token = &p->slotinfo[i].token; |
| 1565 | if ((rv = f->C_GetTokenInfo(p->slotlist[i], token)) |
| 1566 | != CKR_OK) { |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1567 | error("C_GetTokenInfo for provider %s slot %lu " |
| 1568 | "failed: %lu", provider_id, (unsigned long)i, rv); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1569 | continue; |
| 1570 | } |
djm@openbsd.org | b15fd98 | 2015-07-18 08:00:21 +0000 | [diff] [blame] | 1571 | if ((token->flags & CKF_TOKEN_INITIALIZED) == 0) { |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1572 | debug2("%s: ignoring uninitialised token in " |
| 1573 | "provider %s slot %lu", __func__, |
| 1574 | provider_id, (unsigned long)i); |
djm@openbsd.org | b15fd98 | 2015-07-18 08:00:21 +0000 | [diff] [blame] | 1575 | continue; |
| 1576 | } |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1577 | rmspace(token->label, sizeof(token->label)); |
| 1578 | rmspace(token->manufacturerID, sizeof(token->manufacturerID)); |
| 1579 | rmspace(token->model, sizeof(token->model)); |
| 1580 | rmspace(token->serialNumber, sizeof(token->serialNumber)); |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1581 | debug("provider %s slot %lu: label <%s> manufacturerID <%s> " |
| 1582 | "model <%s> serial <%s> flags 0x%lx", |
| 1583 | provider_id, (unsigned long)i, |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1584 | token->label, token->manufacturerID, token->model, |
| 1585 | token->serialNumber, token->flags); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1586 | /* |
| 1587 | * open session, login with pin and retrieve public |
| 1588 | * keys (if keyp is provided) |
| 1589 | */ |
djm@openbsd.org | 7d6034b | 2019-09-05 10:05:51 +0000 | [diff] [blame] | 1590 | if ((ret = pkcs11_open_session(p, i, pin, user)) != 0 || |
| 1591 | keyp == NULL) |
| 1592 | continue; |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1593 | pkcs11_fetch_keys(p, i, keyp, labelsp, &nkeys); |
| 1594 | pkcs11_fetch_certs(p, i, keyp, labelsp, &nkeys); |
djm@openbsd.org | 7d6034b | 2019-09-05 10:05:51 +0000 | [diff] [blame] | 1595 | if (nkeys == 0 && !p->slotinfo[i].logged_in && |
| 1596 | pkcs11_interactive) { |
| 1597 | /* |
| 1598 | * Some tokens require login before they will |
| 1599 | * expose keys. |
| 1600 | */ |
| 1601 | if (pkcs11_login_slot(p, &p->slotinfo[i], |
| 1602 | CKU_USER) < 0) { |
| 1603 | error("login failed"); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1604 | continue; |
djm@openbsd.org | 7d6034b | 2019-09-05 10:05:51 +0000 | [diff] [blame] | 1605 | } |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1606 | pkcs11_fetch_keys(p, i, keyp, labelsp, &nkeys); |
| 1607 | pkcs11_fetch_certs(p, i, keyp, labelsp, &nkeys); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1608 | } |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1609 | } |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1610 | |
| 1611 | /* now owned by caller */ |
| 1612 | *providerp = p; |
| 1613 | |
| 1614 | TAILQ_INSERT_TAIL(&pkcs11_providers, p, next); |
| 1615 | p->refcount++; /* add to provider list */ |
| 1616 | |
| 1617 | return (nkeys); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1618 | fail: |
| 1619 | if (need_finalize && (rv = f->C_Finalize(NULL)) != CKR_OK) |
djm@openbsd.org | efb494e | 2016-10-28 03:33:52 +0000 | [diff] [blame] | 1620 | error("C_Finalize for provider %s failed: %lu", |
| 1621 | provider_id, rv); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1622 | if (p) { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1623 | free(p->name); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1624 | free(p->slotlist); |
| 1625 | free(p->slotinfo); |
| 1626 | free(p); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1627 | } |
| 1628 | if (handle) |
| 1629 | dlclose(handle); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1630 | return (ret); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 1631 | } |
Damien Miller | dfa4156 | 2010-02-12 10:06:28 +1100 | [diff] [blame] | 1632 | |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1633 | /* |
| 1634 | * register a new provider and get number of keys hold by the token, |
| 1635 | * fails if provider already exists |
| 1636 | */ |
| 1637 | int |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1638 | pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp, |
| 1639 | char ***labelsp) |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1640 | { |
| 1641 | struct pkcs11_provider *p = NULL; |
| 1642 | int nkeys; |
Darren Tucker | 0dd24e0 | 2011-09-04 19:59:26 +1000 | [diff] [blame] | 1643 | |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1644 | nkeys = pkcs11_register_provider(provider_id, pin, keyp, labelsp, |
| 1645 | &p, CKU_USER); |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1646 | |
| 1647 | /* no keys found or some other error, de-register provider */ |
| 1648 | if (nkeys <= 0 && p != NULL) { |
| 1649 | TAILQ_REMOVE(&pkcs11_providers, p, next); |
| 1650 | pkcs11_provider_finalize(p); |
| 1651 | pkcs11_provider_unref(p); |
| 1652 | } |
| 1653 | if (nkeys == 0) |
| 1654 | debug("%s: provider %s returned no keys", __func__, |
| 1655 | provider_id); |
| 1656 | |
| 1657 | return (nkeys); |
| 1658 | } |
| 1659 | |
| 1660 | #ifdef WITH_PKCS11_KEYGEN |
| 1661 | struct sshkey * |
| 1662 | pkcs11_gakp(char *provider_id, char *pin, unsigned int slotidx, char *label, |
| 1663 | unsigned int type, unsigned int bits, unsigned char keyid, u_int32_t *err) |
| 1664 | { |
| 1665 | struct pkcs11_provider *p = NULL; |
| 1666 | struct pkcs11_slotinfo *si; |
| 1667 | CK_FUNCTION_LIST *f; |
| 1668 | CK_SESSION_HANDLE session; |
| 1669 | struct sshkey *k = NULL; |
| 1670 | int ret = -1, reset_pin = 0, reset_provider = 0; |
| 1671 | CK_RV rv; |
| 1672 | |
| 1673 | *err = 0; |
| 1674 | |
| 1675 | if ((p = pkcs11_provider_lookup(provider_id)) != NULL) |
| 1676 | debug("%s: provider \"%s\" available", __func__, provider_id); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1677 | else if ((ret = pkcs11_register_provider(provider_id, pin, NULL, NULL, |
| 1678 | &p, CKU_SO)) < 0) { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1679 | debug("%s: could not register provider %s", __func__, |
| 1680 | provider_id); |
| 1681 | goto out; |
| 1682 | } else |
| 1683 | reset_provider = 1; |
| 1684 | |
| 1685 | f = p->function_list; |
| 1686 | si = &p->slotinfo[slotidx]; |
| 1687 | session = si->session; |
| 1688 | |
| 1689 | if ((rv = f->C_SetOperationState(session , pin, strlen(pin), |
| 1690 | CK_INVALID_HANDLE, CK_INVALID_HANDLE)) != CKR_OK) { |
| 1691 | debug("%s: could not supply SO pin: %lu", __func__, rv); |
| 1692 | reset_pin = 0; |
| 1693 | } else |
| 1694 | reset_pin = 1; |
| 1695 | |
| 1696 | switch (type) { |
| 1697 | case KEY_RSA: |
| 1698 | if ((k = pkcs11_rsa_generate_private_key(p, slotidx, label, |
| 1699 | bits, keyid, err)) == NULL) { |
| 1700 | debug("%s: failed to generate RSA key", __func__); |
| 1701 | goto out; |
| 1702 | } |
| 1703 | break; |
| 1704 | case KEY_ECDSA: |
| 1705 | if ((k = pkcs11_ecdsa_generate_private_key(p, slotidx, label, |
| 1706 | bits, keyid, err)) == NULL) { |
| 1707 | debug("%s: failed to generate ECDSA key", __func__); |
| 1708 | goto out; |
| 1709 | } |
| 1710 | break; |
| 1711 | default: |
| 1712 | *err = SSH_PKCS11_ERR_GENERIC; |
| 1713 | debug("%s: unknown type %d", __func__, type); |
| 1714 | goto out; |
| 1715 | } |
| 1716 | |
| 1717 | out: |
| 1718 | if (reset_pin) |
| 1719 | f->C_SetOperationState(session , NULL, 0, CK_INVALID_HANDLE, |
| 1720 | CK_INVALID_HANDLE); |
| 1721 | |
| 1722 | if (reset_provider) |
| 1723 | pkcs11_del_provider(provider_id); |
| 1724 | |
| 1725 | return (k); |
| 1726 | } |
| 1727 | |
| 1728 | struct sshkey * |
| 1729 | pkcs11_destroy_keypair(char *provider_id, char *pin, unsigned long slotidx, |
| 1730 | unsigned char keyid, u_int32_t *err) |
| 1731 | { |
| 1732 | struct pkcs11_provider *p = NULL; |
| 1733 | struct pkcs11_slotinfo *si; |
| 1734 | struct sshkey *k = NULL; |
| 1735 | int reset_pin = 0, reset_provider = 0; |
| 1736 | CK_ULONG nattrs; |
| 1737 | CK_FUNCTION_LIST *f; |
| 1738 | CK_SESSION_HANDLE session; |
| 1739 | CK_ATTRIBUTE attrs[16]; |
| 1740 | CK_OBJECT_CLASS key_class; |
| 1741 | CK_KEY_TYPE key_type; |
| 1742 | CK_OBJECT_HANDLE obj = CK_INVALID_HANDLE; |
| 1743 | CK_RV rv; |
| 1744 | |
| 1745 | *err = 0; |
| 1746 | |
| 1747 | if ((p = pkcs11_provider_lookup(provider_id)) != NULL) { |
| 1748 | debug("%s: using provider \"%s\"", __func__, provider_id); |
djm@openbsd.org | 89a8d45 | 2020-01-25 00:03:36 +0000 | [diff] [blame] | 1749 | } else if (pkcs11_register_provider(provider_id, pin, NULL, NULL, &p, |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1750 | CKU_SO) < 0) { |
| 1751 | debug("%s: could not register provider %s", __func__, |
| 1752 | provider_id); |
| 1753 | goto out; |
| 1754 | } else |
| 1755 | reset_provider = 1; |
| 1756 | |
| 1757 | f = p->function_list; |
| 1758 | si = &p->slotinfo[slotidx]; |
| 1759 | session = si->session; |
| 1760 | |
| 1761 | if ((rv = f->C_SetOperationState(session , pin, strlen(pin), |
| 1762 | CK_INVALID_HANDLE, CK_INVALID_HANDLE)) != CKR_OK) { |
| 1763 | debug("%s: could not supply SO pin: %lu", __func__, rv); |
| 1764 | reset_pin = 0; |
| 1765 | } else |
| 1766 | reset_pin = 1; |
| 1767 | |
| 1768 | /* private key */ |
| 1769 | nattrs = 0; |
| 1770 | key_class = CKO_PRIVATE_KEY; |
| 1771 | FILL_ATTR(attrs, nattrs, CKA_CLASS, &key_class, sizeof(key_class)); |
| 1772 | FILL_ATTR(attrs, nattrs, CKA_ID, &keyid, sizeof(keyid)); |
| 1773 | |
| 1774 | if (pkcs11_find(p, slotidx, attrs, nattrs, &obj) == 0 && |
| 1775 | obj != CK_INVALID_HANDLE) { |
| 1776 | if ((rv = f->C_DestroyObject(session, obj)) != CKR_OK) { |
| 1777 | debug("%s: could not destroy private key 0x%hhx", |
| 1778 | __func__, keyid); |
| 1779 | *err = rv; |
| 1780 | goto out; |
| 1781 | } |
| 1782 | } |
| 1783 | |
| 1784 | /* public key */ |
| 1785 | nattrs = 0; |
| 1786 | key_class = CKO_PUBLIC_KEY; |
| 1787 | FILL_ATTR(attrs, nattrs, CKA_CLASS, &key_class, sizeof(key_class)); |
| 1788 | FILL_ATTR(attrs, nattrs, CKA_ID, &keyid, sizeof(keyid)); |
| 1789 | |
| 1790 | if (pkcs11_find(p, slotidx, attrs, nattrs, &obj) == 0 && |
| 1791 | obj != CK_INVALID_HANDLE) { |
| 1792 | |
| 1793 | /* get key type */ |
| 1794 | nattrs = 0; |
| 1795 | FILL_ATTR(attrs, nattrs, CKA_KEY_TYPE, &key_type, |
| 1796 | sizeof(key_type)); |
| 1797 | rv = f->C_GetAttributeValue(session, obj, attrs, nattrs); |
| 1798 | if (rv != CKR_OK) { |
| 1799 | debug("%s: could not get key type of public key 0x%hhx", |
| 1800 | __func__, keyid); |
| 1801 | *err = rv; |
| 1802 | key_type = -1; |
| 1803 | } |
| 1804 | if (key_type == CKK_RSA) |
| 1805 | k = pkcs11_fetch_rsa_pubkey(p, slotidx, &obj); |
| 1806 | else if (key_type == CKK_ECDSA) |
| 1807 | k = pkcs11_fetch_ecdsa_pubkey(p, slotidx, &obj); |
| 1808 | |
| 1809 | if ((rv = f->C_DestroyObject(session, obj)) != CKR_OK) { |
| 1810 | debug("%s: could not destroy public key 0x%hhx", |
| 1811 | __func__, keyid); |
| 1812 | *err = rv; |
| 1813 | goto out; |
| 1814 | } |
| 1815 | } |
| 1816 | |
| 1817 | out: |
| 1818 | if (reset_pin) |
| 1819 | f->C_SetOperationState(session , NULL, 0, CK_INVALID_HANDLE, |
| 1820 | CK_INVALID_HANDLE); |
| 1821 | |
| 1822 | if (reset_provider) |
| 1823 | pkcs11_del_provider(provider_id); |
| 1824 | |
| 1825 | return (k); |
| 1826 | } |
| 1827 | #endif /* WITH_PKCS11_KEYGEN */ |
Damien Miller | 5de6ac2 | 2019-01-21 11:44:19 +1100 | [diff] [blame] | 1828 | #else /* ENABLE_PKCS11 */ |
Darren Tucker | 9634ffb | 2019-07-23 22:25:44 +1000 | [diff] [blame] | 1829 | |
| 1830 | #include <sys/types.h> |
| 1831 | #include <stdarg.h> |
| 1832 | #include <stdio.h> |
| 1833 | |
| 1834 | #include "log.h" |
| 1835 | #include "sshkey.h" |
| 1836 | |
Darren Tucker | 0dd24e0 | 2011-09-04 19:59:26 +1000 | [diff] [blame] | 1837 | int |
| 1838 | pkcs11_init(int interactive) |
| 1839 | { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1840 | error("%s: dlopen() not supported", __func__); |
| 1841 | return (-1); |
| 1842 | } |
| 1843 | |
| 1844 | int |
| 1845 | pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp) |
| 1846 | { |
| 1847 | error("%s: dlopen() not supported", __func__); |
| 1848 | return (-1); |
Darren Tucker | 0dd24e0 | 2011-09-04 19:59:26 +1000 | [diff] [blame] | 1849 | } |
| 1850 | |
| 1851 | void |
| 1852 | pkcs11_terminate(void) |
| 1853 | { |
djm@openbsd.org | 93f0210 | 2019-01-20 22:51:37 +0000 | [diff] [blame] | 1854 | error("%s: dlopen() not supported", __func__); |
Darren Tucker | 0dd24e0 | 2011-09-04 19:59:26 +1000 | [diff] [blame] | 1855 | } |
Damien Miller | 5de6ac2 | 2019-01-21 11:44:19 +1100 | [diff] [blame] | 1856 | #endif /* ENABLE_PKCS11 */ |