| File: | src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c |
| Warning: | line 1596, column 8 Although the value stored to 'ret' is used in the enclosing expression, the value is never actually read from 'ret' |
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| 1 | /* $OpenBSD: ssh-pkcs11.c,v 1.55 2021/11/18 21:11:01 djm Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 2010 Markus Friedl. All rights reserved. |
| 4 | * Copyright (c) 2014 Pedro Martelletto. All rights reserved. |
| 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 | |
| 24 | #include <ctype.h> |
| 25 | #include <string.h> |
| 26 | #include <dlfcn.h> |
| 27 | |
| 28 | #include <openssl/ecdsa.h> |
| 29 | #include <openssl/x509.h> |
| 30 | #include <openssl/err.h> |
| 31 | |
| 32 | #define CRYPTOKI_COMPAT |
| 33 | #include "pkcs11.h" |
| 34 | |
| 35 | #include "log.h" |
| 36 | #include "misc.h" |
| 37 | #include "sshkey.h" |
| 38 | #include "ssh-pkcs11.h" |
| 39 | #include "digest.h" |
| 40 | #include "xmalloc.h" |
| 41 | |
| 42 | struct pkcs11_slotinfo { |
| 43 | CK_TOKEN_INFO token; |
| 44 | CK_SESSION_HANDLE session; |
| 45 | int logged_in; |
| 46 | }; |
| 47 | |
| 48 | struct pkcs11_provider { |
| 49 | char *name; |
| 50 | void *handle; |
| 51 | CK_FUNCTION_LIST *function_list; |
| 52 | CK_INFO info; |
| 53 | CK_ULONG nslots; |
| 54 | CK_SLOT_ID *slotlist; |
| 55 | struct pkcs11_slotinfo *slotinfo; |
| 56 | int valid; |
| 57 | int refcount; |
| 58 | TAILQ_ENTRY(pkcs11_provider)struct { struct pkcs11_provider *tqe_next; struct pkcs11_provider **tqe_prev; } next; |
| 59 | }; |
| 60 | |
| 61 | TAILQ_HEAD(, pkcs11_provider)struct { struct pkcs11_provider *tqh_first; struct pkcs11_provider **tqh_last; } pkcs11_providers; |
| 62 | |
| 63 | struct pkcs11_key { |
| 64 | struct pkcs11_provider *provider; |
| 65 | CK_ULONG slotidx; |
| 66 | char *keyid; |
| 67 | int keyid_len; |
| 68 | }; |
| 69 | |
| 70 | int pkcs11_interactive = 0; |
| 71 | |
| 72 | #ifdef HAVE_DLOPEN1 |
| 73 | static void |
| 74 | ossl_error(const char *msg) |
| 75 | { |
| 76 | unsigned long e; |
| 77 | |
| 78 | error_f("%s", msg)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 78, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "%s", msg); |
| 79 | while ((e = ERR_get_error()) != 0) |
| 80 | error_f("libcrypto error: %s", ERR_error_string(e, NULL))sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 80, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "libcrypto error: %s" , ERR_error_string(e, ((void*)0))); |
| 81 | } |
| 82 | #endif |
| 83 | |
| 84 | int |
| 85 | pkcs11_init(int interactive) |
| 86 | { |
| 87 | pkcs11_interactive = interactive; |
| 88 | TAILQ_INIT(&pkcs11_providers)do { (&pkcs11_providers)->tqh_first = ((void*)0); (& pkcs11_providers)->tqh_last = &(&pkcs11_providers) ->tqh_first; } while (0); |
| 89 | return (0); |
| 90 | } |
| 91 | |
| 92 | /* |
| 93 | * finalize a provider shared library, it's no longer usable. |
| 94 | * however, there might still be keys referencing this provider, |
| 95 | * so the actual freeing of memory is handled by pkcs11_provider_unref(). |
| 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_f("provider \"%s\" refcount %d valid %d",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 105, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider \"%s\" refcount %d valid %d" , p->name, p->refcount, p->valid) |
| 105 | p->name, p->refcount, p->valid)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 105, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider \"%s\" refcount %d valid %d" , p->name, 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(0)) |
| 112 | error("C_CloseSession failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 112, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_CloseSession failed: %lu" , rv); |
| 113 | } |
| 114 | if ((rv = p->function_list->C_Finalize(NULL((void*)0))) != CKR_OK(0)) |
| 115 | error("C_Finalize failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 115, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_Finalize failed: %lu" , rv); |
| 116 | p->valid = 0; |
| 117 | p->function_list = NULL((void*)0); |
| 118 | #ifdef HAVE_DLOPEN1 |
| 119 | dlclose(p->handle); |
| 120 | #endif |
| 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_f("provider \"%s\" refcount %d", p->name, p->refcount)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 130, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider \"%s\" refcount %d" , p->name, p->refcount); |
| 131 | if (--p->refcount <= 0) { |
| 132 | if (p->valid) |
| 133 | error_f("provider \"%s\" still valid", p->name)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 133, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "provider \"%s\" still valid" , p->name); |
| 134 | free(p->name); |
| 135 | free(p->slotlist); |
| 136 | free(p->slotinfo); |
| 137 | free(p); |
| 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)((&pkcs11_providers)->tqh_first)) != NULL((void*)0)) { |
| 148 | TAILQ_REMOVE(&pkcs11_providers, p, next)do { if (((p)->next.tqe_next) != ((void*)0)) (p)->next. tqe_next->next.tqe_prev = (p)->next.tqe_prev; else (& pkcs11_providers)->tqh_last = (p)->next.tqe_prev; *(p)-> next.tqe_prev = (p)->next.tqe_next; ; ; } while (0); |
| 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)for((p) = ((&pkcs11_providers)->tqh_first); (p) != ((void *)0); (p) = ((p)->next.tqe_next)) { |
| 161 | debug("check provider \"%s\"", p->name)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 161, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "check provider \"%s\"" , p->name); |
| 162 | if (!strcmp(provider_id, p->name)) |
| 163 | return (p); |
| 164 | } |
| 165 | return (NULL((void*)0)); |
| 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((void*)0)) { |
| 175 | TAILQ_REMOVE(&pkcs11_providers, p, next)do { if (((p)->next.tqe_next) != ((void*)0)) (p)->next. tqe_next->next.tqe_prev = (p)->next.tqe_prev; else (& pkcs11_providers)->tqh_last = (p)->next.tqe_prev; *(p)-> next.tqe_prev = (p)->next.tqe_next; ; ; } while (0); |
| 176 | pkcs11_provider_finalize(p); |
| 177 | pkcs11_provider_unref(p); |
| 178 | return (0); |
| 179 | } |
| 180 | return (-1); |
| 181 | } |
| 182 | |
| 183 | #ifdef HAVE_DLOPEN1 |
| 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 | |
| 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) |
| 193 | { |
| 194 | struct pkcs11_key *k11 = ptr; |
| 195 | |
| 196 | debug_f("parent %p ptr %p idx %d", parent, ptr, idx)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 196, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "parent %p ptr %p idx %d" , parent, ptr, idx); |
| 197 | if (k11 == NULL((void*)0)) |
| 198 | return; |
| 199 | if (k11->provider) |
| 200 | pkcs11_provider_unref(k11->provider); |
| 201 | free(k11->keyid); |
| 202 | free(k11); |
| 203 | } |
| 204 | |
| 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(0)) { |
| 219 | error("C_FindObjectsInit failed (nattr %lu): %lu", nattr, rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 219, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_FindObjectsInit failed (nattr %lu): %lu" , nattr, rv); |
| 220 | return (-1); |
| 221 | } |
| 222 | if ((rv = f->C_FindObjects(session, obj, 1, &nfound)) != CKR_OK(0) || |
| 223 | nfound != 1) { |
| 224 | debug("C_FindObjects failed (nfound %lu nattr %lu): %lu",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 225, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "C_FindObjects failed (nfound %lu nattr %lu): %lu" , nfound, nattr, rv) |
| 225 | nfound, nattr, rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 225, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "C_FindObjects failed (nfound %lu nattr %lu): %lu" , nfound, nattr, rv); |
| 226 | } else |
| 227 | ret = 0; |
| 228 | if ((rv = f->C_FindObjectsFinal(session)) != CKR_OK(0)) |
| 229 | error("C_FindObjectsFinal failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 229, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_FindObjectsFinal failed: %lu" , rv); |
| 230 | return (ret); |
| 231 | } |
| 232 | |
| 233 | static int |
| 234 | pkcs11_login_slot(struct pkcs11_provider *provider, struct pkcs11_slotinfo *si, |
| 235 | CK_USER_TYPE type) |
| 236 | { |
| 237 | char *pin = NULL((void*)0), prompt[1024]; |
| 238 | CK_RV rv; |
| 239 | |
| 240 | if (provider == NULL((void*)0) || si == NULL((void*)0) || !provider->valid) { |
| 241 | error("no pkcs11 (valid) provider found")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 241, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "no pkcs11 (valid) provider found" ); |
| 242 | return (-1); |
| 243 | } |
| 244 | |
| 245 | if (!pkcs11_interactive) { |
| 246 | error("need pin entry%s",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 248, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "need pin entry%s" , (si->token.flags & (1 << 8)) ? " on reader keypad" : "") |
| 247 | (si->token.flags & CKF_PROTECTED_AUTHENTICATION_PATH) ?sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 248, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "need pin entry%s" , (si->token.flags & (1 << 8)) ? " on reader keypad" : "") |
| 248 | " on reader keypad" : "")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 248, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "need pin entry%s" , (si->token.flags & (1 << 8)) ? " on reader keypad" : ""); |
| 249 | return (-1); |
| 250 | } |
| 251 | if (si->token.flags & CKF_PROTECTED_AUTHENTICATION_PATH(1 << 8)) |
| 252 | verbose("Deferring PIN entry to reader keypad.")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 252, 0, SYSLOG_LEVEL_VERBOSE, ((void*)0), "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_EOF0x0004)) == NULL((void*)0)) { |
| 257 | debug_f("no pin specified")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 257, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "no pin specified" ); |
| 258 | return (-1); /* bail out */ |
| 259 | } |
| 260 | } |
| 261 | rv = provider->function_list->C_Login(si->session, type, (u_char *)pin, |
| 262 | (pin != NULL((void*)0)) ? strlen(pin) : 0); |
| 263 | if (pin != NULL((void*)0)) |
| 264 | freezero(pin, strlen(pin)); |
| 265 | |
| 266 | switch (rv) { |
| 267 | case CKR_OK(0): |
| 268 | case CKR_USER_ALREADY_LOGGED_IN(0x100): |
| 269 | /* success */ |
| 270 | break; |
| 271 | case CKR_PIN_LEN_RANGE(0xa2): |
| 272 | error("PKCS#11 login failed: PIN length out of range")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 272, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "PKCS#11 login failed: PIN length out of range" ); |
| 273 | return -1; |
| 274 | case CKR_PIN_INCORRECT(0xa0): |
| 275 | error("PKCS#11 login failed: PIN incorrect")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 275, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "PKCS#11 login failed: PIN incorrect" ); |
| 276 | return -1; |
| 277 | case CKR_PIN_LOCKED(0xa4): |
| 278 | error("PKCS#11 login failed: PIN locked")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 278, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "PKCS#11 login failed: PIN locked" ); |
| 279 | return -1; |
| 280 | default: |
| 281 | error("PKCS#11 login failed: error %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 281, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "PKCS#11 login failed: error %lu" , rv); |
| 282 | return -1; |
| 283 | } |
| 284 | si->logged_in = 1; |
| 285 | return (0); |
| 286 | } |
| 287 | |
| 288 | static int |
| 289 | pkcs11_login(struct pkcs11_key *k11, CK_USER_TYPE type) |
| 290 | { |
| 291 | if (k11 == NULL((void*)0) || k11->provider == NULL((void*)0) || !k11->provider->valid) { |
| 292 | error("no pkcs11 (valid) provider found")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 292, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "no pkcs11 (valid) provider found" ); |
| 293 | return (-1); |
| 294 | } |
| 295 | |
| 296 | return pkcs11_login_slot(k11->provider, |
| 297 | &k11->provider->slotinfo[k11->slotidx], type); |
| 298 | } |
| 299 | |
| 300 | |
| 301 | static int |
| 302 | pkcs11_check_obj_bool_attrib(struct pkcs11_key *k11, CK_OBJECT_HANDLE obj, |
| 303 | CK_ATTRIBUTE_TYPE type, int *val) |
| 304 | { |
| 305 | struct pkcs11_slotinfo *si; |
| 306 | CK_FUNCTION_LIST *f; |
| 307 | CK_BBOOL flag = 0; |
| 308 | CK_ATTRIBUTE attr; |
| 309 | CK_RV rv; |
| 310 | |
| 311 | *val = 0; |
| 312 | |
| 313 | if (!k11->provider || !k11->provider->valid) { |
| 314 | error("no pkcs11 (valid) provider found")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 314, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "no pkcs11 (valid) provider found" ); |
| 315 | return (-1); |
| 316 | } |
| 317 | |
| 318 | f = k11->provider->function_list; |
| 319 | si = &k11->provider->slotinfo[k11->slotidx]; |
| 320 | |
| 321 | attr.type = type; |
| 322 | attr.pValue = &flag; |
| 323 | attr.ulValueLen = sizeof(flag); |
| 324 | |
| 325 | rv = f->C_GetAttributeValue(si->session, obj, &attr, 1); |
| 326 | if (rv != CKR_OK(0)) { |
| 327 | error("C_GetAttributeValue failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 327, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetAttributeValue failed: %lu" , rv); |
| 328 | return (-1); |
| 329 | } |
| 330 | *val = flag != 0; |
| 331 | debug_f("provider \"%s\" slot %lu object %lu: attrib %lu = %d",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 332, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider \"%s\" slot %lu object %lu: attrib %lu = %d" , k11->provider->name, k11->slotidx, obj, type, *val ) |
| 332 | k11->provider->name, k11->slotidx, obj, type, *val)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 332, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider \"%s\" slot %lu object %lu: attrib %lu = %d" , k11->provider->name, k11->slotidx, obj, type, *val ); |
| 333 | return (0); |
| 334 | } |
| 335 | |
| 336 | static int |
| 337 | pkcs11_get_key(struct pkcs11_key *k11, CK_MECHANISM_TYPE mech_type) |
| 338 | { |
| 339 | struct pkcs11_slotinfo *si; |
| 340 | CK_FUNCTION_LIST *f; |
| 341 | CK_OBJECT_HANDLE obj; |
| 342 | CK_RV rv; |
| 343 | CK_OBJECT_CLASS private_key_class; |
| 344 | CK_BBOOL true_val; |
| 345 | CK_MECHANISM mech; |
| 346 | CK_ATTRIBUTE key_filter[3]; |
| 347 | int always_auth = 0; |
| 348 | int did_login = 0; |
| 349 | |
| 350 | if (!k11->provider || !k11->provider->valid) { |
| 351 | error("no pkcs11 (valid) provider found")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 351, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "no pkcs11 (valid) provider found" ); |
| 352 | return (-1); |
| 353 | } |
| 354 | |
| 355 | f = k11->provider->function_list; |
| 356 | si = &k11->provider->slotinfo[k11->slotidx]; |
| 357 | |
| 358 | if ((si->token.flags & CKF_LOGIN_REQUIRED(1 << 2)) && !si->logged_in) { |
| 359 | if (pkcs11_login(k11, CKU_USER(1)) < 0) { |
| 360 | error("login failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 360, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "login failed" ); |
| 361 | return (-1); |
| 362 | } |
| 363 | did_login = 1; |
| 364 | } |
| 365 | |
| 366 | memset(&key_filter, 0, sizeof(key_filter)); |
| 367 | private_key_class = CKO_PRIVATE_KEY(3); |
| 368 | key_filter[0].type = CKA_CLASS(0); |
| 369 | key_filter[0].pValue = &private_key_class; |
| 370 | key_filter[0].ulValueLen = sizeof(private_key_class); |
| 371 | |
| 372 | key_filter[1].type = CKA_ID(0x102); |
| 373 | key_filter[1].pValue = k11->keyid; |
| 374 | key_filter[1].ulValueLen = k11->keyid_len; |
| 375 | |
| 376 | true_val = CK_TRUE1; |
| 377 | key_filter[2].type = CKA_SIGN(0x108); |
| 378 | key_filter[2].pValue = &true_val; |
| 379 | key_filter[2].ulValueLen = sizeof(true_val); |
| 380 | |
| 381 | /* try to find object w/CKA_SIGN first, retry w/o */ |
| 382 | if (pkcs11_find(k11->provider, k11->slotidx, key_filter, 3, &obj) < 0 && |
| 383 | pkcs11_find(k11->provider, k11->slotidx, key_filter, 2, &obj) < 0) { |
| 384 | error("cannot find private key")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 384, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "cannot find private key" ); |
| 385 | return (-1); |
| 386 | } |
| 387 | |
| 388 | memset(&mech, 0, sizeof(mech)); |
| 389 | mech.mechanism = mech_type; |
| 390 | mech.pParameter = NULL_PTR((void*)0); |
| 391 | mech.ulParameterLen = 0; |
| 392 | |
| 393 | if ((rv = f->C_SignInit(si->session, &mech, obj)) != CKR_OK(0)) { |
| 394 | error("C_SignInit failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 394, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_SignInit failed: %lu" , rv); |
| 395 | return (-1); |
| 396 | } |
| 397 | |
| 398 | pkcs11_check_obj_bool_attrib(k11, obj, CKA_ALWAYS_AUTHENTICATE(0x202), |
| 399 | &always_auth); /* ignore errors here */ |
| 400 | if (always_auth && !did_login) { |
| 401 | debug_f("always-auth key")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 401, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "always-auth key" ); |
| 402 | if (pkcs11_login(k11, CKU_CONTEXT_SPECIFIC(2)) < 0) { |
| 403 | error("login failed for always-auth key")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 403, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "login failed for always-auth key" ); |
| 404 | return (-1); |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | return (0); |
| 409 | } |
| 410 | |
| 411 | /* openssl callback doing the actual signing operation */ |
| 412 | static int |
| 413 | pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa, |
| 414 | int padding) |
| 415 | { |
| 416 | struct pkcs11_key *k11; |
| 417 | struct pkcs11_slotinfo *si; |
| 418 | CK_FUNCTION_LIST *f; |
| 419 | CK_ULONG tlen = 0; |
| 420 | CK_RV rv; |
| 421 | int rval = -1; |
| 422 | |
| 423 | if ((k11 = RSA_get_ex_data(rsa, rsa_idx)) == NULL((void*)0)) { |
| 424 | error("RSA_get_ex_data failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 424, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "RSA_get_ex_data failed" ); |
| 425 | return (-1); |
| 426 | } |
| 427 | |
| 428 | if (pkcs11_get_key(k11, CKM_RSA_PKCS(1)) == -1) { |
| 429 | error("pkcs11_get_key failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 429, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "pkcs11_get_key failed" ); |
| 430 | return (-1); |
| 431 | } |
| 432 | |
| 433 | f = k11->provider->function_list; |
| 434 | si = &k11->provider->slotinfo[k11->slotidx]; |
| 435 | tlen = RSA_size(rsa); |
| 436 | |
| 437 | /* XXX handle CKR_BUFFER_TOO_SMALL */ |
| 438 | rv = f->C_Sign(si->session, (CK_BYTE *)from, flen, to, &tlen); |
| 439 | if (rv == CKR_OK(0)) |
| 440 | rval = tlen; |
| 441 | else |
| 442 | error("C_Sign failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 442, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_Sign failed: %lu" , rv); |
| 443 | |
| 444 | return (rval); |
| 445 | } |
| 446 | |
| 447 | static int |
| 448 | pkcs11_rsa_private_decrypt(int flen, const u_char *from, u_char *to, RSA *rsa, |
| 449 | int padding) |
| 450 | { |
| 451 | return (-1); |
| 452 | } |
| 453 | |
| 454 | static int |
| 455 | pkcs11_rsa_start_wrapper(void) |
| 456 | { |
| 457 | if (rsa_method != NULL((void*)0)) |
| 458 | return (0); |
| 459 | rsa_method = RSA_meth_dup(RSA_get_default_method()); |
| 460 | if (rsa_method == NULL((void*)0)) |
| 461 | return (-1); |
| 462 | rsa_idx = RSA_get_ex_new_index(0, "ssh-pkcs11-rsa", |
| 463 | NULL((void*)0), NULL((void*)0), pkcs11_k11_free); |
| 464 | if (rsa_idx == -1) |
| 465 | return (-1); |
| 466 | if (!RSA_meth_set1_name(rsa_method, "pkcs11") || |
| 467 | !RSA_meth_set_priv_enc(rsa_method, pkcs11_rsa_private_encrypt) || |
| 468 | !RSA_meth_set_priv_dec(rsa_method, pkcs11_rsa_private_decrypt)) { |
| 469 | error_f("setup pkcs11 method failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 469, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "setup pkcs11 method failed" ); |
| 470 | return (-1); |
| 471 | } |
| 472 | return (0); |
| 473 | } |
| 474 | |
| 475 | /* redirect private key operations for rsa key to pkcs11 token */ |
| 476 | static int |
| 477 | pkcs11_rsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx, |
| 478 | CK_ATTRIBUTE *keyid_attrib, RSA *rsa) |
| 479 | { |
| 480 | struct pkcs11_key *k11; |
| 481 | |
| 482 | if (pkcs11_rsa_start_wrapper() == -1) |
| 483 | return (-1); |
| 484 | |
| 485 | k11 = xcalloc(1, sizeof(*k11)); |
| 486 | k11->provider = provider; |
| 487 | provider->refcount++; /* provider referenced by RSA key */ |
| 488 | k11->slotidx = slotidx; |
| 489 | /* identify key object on smartcard */ |
| 490 | k11->keyid_len = keyid_attrib->ulValueLen; |
| 491 | if (k11->keyid_len > 0) { |
| 492 | k11->keyid = xmalloc(k11->keyid_len); |
| 493 | memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len); |
| 494 | } |
| 495 | |
| 496 | RSA_set_method(rsa, rsa_method); |
| 497 | RSA_set_ex_data(rsa, rsa_idx, k11); |
| 498 | return (0); |
| 499 | } |
| 500 | |
| 501 | /* openssl callback doing the actual signing operation */ |
| 502 | static ECDSA_SIG * |
| 503 | ecdsa_do_sign(const unsigned char *dgst, int dgst_len, const BIGNUM *inv, |
| 504 | const BIGNUM *rp, EC_KEY *ec) |
| 505 | { |
| 506 | struct pkcs11_key *k11; |
| 507 | struct pkcs11_slotinfo *si; |
| 508 | CK_FUNCTION_LIST *f; |
| 509 | CK_ULONG siglen = 0, bnlen; |
| 510 | CK_RV rv; |
| 511 | ECDSA_SIG *ret = NULL((void*)0); |
| 512 | u_char *sig; |
| 513 | BIGNUM *r = NULL((void*)0), *s = NULL((void*)0); |
| 514 | |
| 515 | if ((k11 = EC_KEY_get_ex_data(ec, ec_key_idx)) == NULL((void*)0)) { |
| 516 | ossl_error("EC_KEY_get_key_method_data failed for ec"); |
| 517 | return (NULL((void*)0)); |
| 518 | } |
| 519 | |
| 520 | if (pkcs11_get_key(k11, CKM_ECDSA(0x1041)) == -1) { |
| 521 | error("pkcs11_get_key failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 521, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "pkcs11_get_key failed" ); |
| 522 | return (NULL((void*)0)); |
| 523 | } |
| 524 | |
| 525 | f = k11->provider->function_list; |
| 526 | si = &k11->provider->slotinfo[k11->slotidx]; |
| 527 | |
| 528 | siglen = ECDSA_size(ec); |
| 529 | sig = xmalloc(siglen); |
| 530 | |
| 531 | /* XXX handle CKR_BUFFER_TOO_SMALL */ |
| 532 | rv = f->C_Sign(si->session, (CK_BYTE *)dgst, dgst_len, sig, &siglen); |
| 533 | if (rv != CKR_OK(0)) { |
| 534 | error("C_Sign failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 534, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_Sign failed: %lu" , rv); |
| 535 | goto done; |
| 536 | } |
| 537 | if (siglen < 64 || siglen > 132 || siglen % 2) { |
| 538 | ossl_error("d2i_ECDSA_SIG failed"); |
| 539 | goto done; |
| 540 | } |
| 541 | bnlen = siglen/2; |
| 542 | if ((ret = ECDSA_SIG_new()) == NULL((void*)0)) { |
| 543 | error("ECDSA_SIG_new failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 543, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "ECDSA_SIG_new failed" ); |
| 544 | goto done; |
| 545 | } |
| 546 | if ((r = BN_bin2bn(sig, bnlen, NULL((void*)0))) == NULL((void*)0) || |
| 547 | (s = BN_bin2bn(sig+bnlen, bnlen, NULL((void*)0))) == NULL((void*)0)) { |
| 548 | ossl_error("d2i_ECDSA_SIG failed"); |
| 549 | ECDSA_SIG_free(ret); |
| 550 | ret = NULL((void*)0); |
| 551 | goto done; |
| 552 | } |
| 553 | if (!ECDSA_SIG_set0(ret, r, s)) { |
| 554 | error_f("ECDSA_SIG_set0 failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 554, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "ECDSA_SIG_set0 failed" ); |
| 555 | ECDSA_SIG_free(ret); |
| 556 | ret = NULL((void*)0); |
| 557 | goto done; |
| 558 | } |
| 559 | r = s = NULL((void*)0); /* now owned by ret */ |
| 560 | /* success */ |
| 561 | done: |
| 562 | BN_free(r); |
| 563 | BN_free(s); |
| 564 | free(sig); |
| 565 | |
| 566 | return (ret); |
| 567 | } |
| 568 | |
| 569 | static int |
| 570 | pkcs11_ecdsa_start_wrapper(void) |
| 571 | { |
| 572 | int (*orig_sign)(int, const unsigned char *, int, unsigned char *, |
| 573 | unsigned int *, const BIGNUM *, const BIGNUM *, EC_KEY *) = NULL((void*)0); |
| 574 | |
| 575 | if (ec_key_method != NULL((void*)0)) |
| 576 | return (0); |
| 577 | ec_key_idx = EC_KEY_get_ex_new_index(0, "ssh-pkcs11-ecdsa",CRYPTO_get_ex_new_index(16, 0, "ssh-pkcs11-ecdsa", ((void*)0) , ((void*)0), pkcs11_k11_free) |
| 578 | NULL, NULL, pkcs11_k11_free)CRYPTO_get_ex_new_index(16, 0, "ssh-pkcs11-ecdsa", ((void*)0) , ((void*)0), pkcs11_k11_free); |
| 579 | if (ec_key_idx == -1) |
| 580 | return (-1); |
| 581 | ec_key_method = EC_KEY_METHOD_new(EC_KEY_OpenSSL()); |
| 582 | if (ec_key_method == NULL((void*)0)) |
| 583 | return (-1); |
| 584 | EC_KEY_METHOD_get_sign(ec_key_method, &orig_sign, NULL((void*)0), NULL((void*)0)); |
| 585 | EC_KEY_METHOD_set_sign(ec_key_method, orig_sign, NULL((void*)0), ecdsa_do_sign); |
| 586 | return (0); |
| 587 | } |
| 588 | |
| 589 | static int |
| 590 | pkcs11_ecdsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx, |
| 591 | CK_ATTRIBUTE *keyid_attrib, EC_KEY *ec) |
| 592 | { |
| 593 | struct pkcs11_key *k11; |
| 594 | |
| 595 | if (pkcs11_ecdsa_start_wrapper() == -1) |
| 596 | return (-1); |
| 597 | |
| 598 | k11 = xcalloc(1, sizeof(*k11)); |
| 599 | k11->provider = provider; |
| 600 | provider->refcount++; /* provider referenced by ECDSA key */ |
| 601 | k11->slotidx = slotidx; |
| 602 | /* identify key object on smartcard */ |
| 603 | k11->keyid_len = keyid_attrib->ulValueLen; |
| 604 | if (k11->keyid_len > 0) { |
| 605 | k11->keyid = xmalloc(k11->keyid_len); |
| 606 | memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len); |
| 607 | } |
| 608 | EC_KEY_set_method(ec, ec_key_method); |
| 609 | EC_KEY_set_ex_data(ec, ec_key_idx, k11); |
| 610 | |
| 611 | return (0); |
| 612 | } |
| 613 | |
| 614 | /* remove trailing spaces */ |
| 615 | static void |
| 616 | rmspace(u_char *buf, size_t len) |
| 617 | { |
| 618 | size_t i; |
| 619 | |
| 620 | if (!len) |
| 621 | return; |
| 622 | for (i = len - 1; i > 0; i--) |
| 623 | if (i == len - 1 || buf[i] == ' ') |
| 624 | buf[i] = '\0'; |
| 625 | else |
| 626 | break; |
| 627 | } |
| 628 | |
| 629 | /* |
| 630 | * open a pkcs11 session and login if required. |
| 631 | * if pin == NULL we delay login until key use |
| 632 | */ |
| 633 | static int |
| 634 | pkcs11_open_session(struct pkcs11_provider *p, CK_ULONG slotidx, char *pin, |
| 635 | CK_ULONG user) |
| 636 | { |
| 637 | struct pkcs11_slotinfo *si; |
| 638 | CK_FUNCTION_LIST *f; |
| 639 | CK_RV rv; |
| 640 | CK_SESSION_HANDLE session; |
| 641 | int login_required, ret; |
| 642 | |
| 643 | f = p->function_list; |
| 644 | si = &p->slotinfo[slotidx]; |
| 645 | |
| 646 | login_required = si->token.flags & CKF_LOGIN_REQUIRED(1 << 2); |
| 647 | |
| 648 | /* fail early before opening session */ |
| 649 | if (login_required && !pkcs11_interactive && |
| 650 | (pin == NULL((void*)0) || strlen(pin) == 0)) { |
| 651 | error("pin required")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 651, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "pin required" ); |
| 652 | return (-SSH_PKCS11_ERR_PIN_REQUIRED4); |
| 653 | } |
| 654 | if ((rv = f->C_OpenSession(p->slotlist[slotidx], CKF_RW_SESSION(1 << 1)| |
| 655 | CKF_SERIAL_SESSION(1 << 2), NULL((void*)0), NULL((void*)0), &session)) != CKR_OK(0)) { |
| 656 | error("C_OpenSession failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 656, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_OpenSession failed: %lu" , rv); |
| 657 | return (-1); |
| 658 | } |
| 659 | if (login_required && pin != NULL((void*)0) && strlen(pin) != 0) { |
| 660 | rv = f->C_Login(session, user, (u_char *)pin, strlen(pin)); |
| 661 | if (rv != CKR_OK(0) && rv != CKR_USER_ALREADY_LOGGED_IN(0x100)) { |
| 662 | error("C_Login failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 662, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_Login failed: %lu" , rv); |
| 663 | ret = (rv == CKR_PIN_LOCKED(0xa4)) ? |
| 664 | -SSH_PKCS11_ERR_PIN_LOCKED5 : |
| 665 | -SSH_PKCS11_ERR_LOGIN_FAIL2; |
| 666 | if ((rv = f->C_CloseSession(session)) != CKR_OK(0)) |
| 667 | error("C_CloseSession failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 667, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_CloseSession failed: %lu" , rv); |
| 668 | return (ret); |
| 669 | } |
| 670 | si->logged_in = 1; |
| 671 | } |
| 672 | si->session = session; |
| 673 | return (0); |
| 674 | } |
| 675 | |
| 676 | static int |
| 677 | pkcs11_key_included(struct sshkey ***keysp, int *nkeys, struct sshkey *key) |
| 678 | { |
| 679 | int i; |
| 680 | |
| 681 | for (i = 0; i < *nkeys; i++) |
| 682 | if (sshkey_equal(key, (*keysp)[i])) |
| 683 | return (1); |
| 684 | return (0); |
| 685 | } |
| 686 | |
| 687 | static struct sshkey * |
| 688 | pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 689 | CK_OBJECT_HANDLE *obj) |
| 690 | { |
| 691 | CK_ATTRIBUTE key_attr[3]; |
| 692 | CK_SESSION_HANDLE session; |
| 693 | CK_FUNCTION_LIST *f = NULL((void*)0); |
| 694 | CK_RV rv; |
| 695 | ASN1_OCTET_STRING *octet = NULL((void*)0); |
| 696 | EC_KEY *ec = NULL((void*)0); |
| 697 | EC_GROUP *group = NULL((void*)0); |
| 698 | struct sshkey *key = NULL((void*)0); |
| 699 | const unsigned char *attrp = NULL((void*)0); |
| 700 | int i; |
| 701 | int nid; |
| 702 | |
| 703 | memset(&key_attr, 0, sizeof(key_attr)); |
| 704 | key_attr[0].type = CKA_ID(0x102); |
| 705 | key_attr[1].type = CKA_EC_POINT(0x181); |
| 706 | key_attr[2].type = CKA_EC_PARAMS(0x180); |
| 707 | |
| 708 | session = p->slotinfo[slotidx].session; |
| 709 | f = p->function_list; |
| 710 | |
| 711 | /* figure out size of the attributes */ |
| 712 | rv = f->C_GetAttributeValue(session, *obj, key_attr, 3); |
| 713 | if (rv != CKR_OK(0)) { |
| 714 | error("C_GetAttributeValue failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 714, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetAttributeValue failed: %lu" , rv); |
| 715 | return (NULL((void*)0)); |
| 716 | } |
| 717 | |
| 718 | /* |
| 719 | * Allow CKA_ID (always first attribute) to be empty, but |
| 720 | * ensure that none of the others are zero length. |
| 721 | * XXX assumes CKA_ID is always first. |
| 722 | */ |
| 723 | if (key_attr[1].ulValueLen == 0 || |
| 724 | key_attr[2].ulValueLen == 0) { |
| 725 | error("invalid attribute length")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 725, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "invalid attribute length" ); |
| 726 | return (NULL((void*)0)); |
| 727 | } |
| 728 | |
| 729 | /* allocate buffers for attributes */ |
| 730 | for (i = 0; i < 3; i++) |
| 731 | if (key_attr[i].ulValueLen > 0) |
| 732 | key_attr[i].pValue = xcalloc(1, key_attr[i].ulValueLen); |
| 733 | |
| 734 | /* retrieve ID, public point and curve parameters of EC key */ |
| 735 | rv = f->C_GetAttributeValue(session, *obj, key_attr, 3); |
| 736 | if (rv != CKR_OK(0)) { |
| 737 | error("C_GetAttributeValue failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 737, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetAttributeValue failed: %lu" , rv); |
| 738 | goto fail; |
| 739 | } |
| 740 | |
| 741 | ec = EC_KEY_new(); |
| 742 | if (ec == NULL((void*)0)) { |
| 743 | error("EC_KEY_new failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 743, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "EC_KEY_new failed" ); |
| 744 | goto fail; |
| 745 | } |
| 746 | |
| 747 | attrp = key_attr[2].pValue; |
| 748 | group = d2i_ECPKParameters(NULL((void*)0), &attrp, key_attr[2].ulValueLen); |
| 749 | if (group == NULL((void*)0)) { |
| 750 | ossl_error("d2i_ECPKParameters failed"); |
| 751 | goto fail; |
| 752 | } |
| 753 | |
| 754 | if (EC_KEY_set_group(ec, group) == 0) { |
| 755 | ossl_error("EC_KEY_set_group failed"); |
| 756 | goto fail; |
| 757 | } |
| 758 | |
| 759 | if (key_attr[1].ulValueLen <= 2) { |
| 760 | error("CKA_EC_POINT too small")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 760, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "CKA_EC_POINT too small" ); |
| 761 | goto fail; |
| 762 | } |
| 763 | |
| 764 | attrp = key_attr[1].pValue; |
| 765 | octet = d2i_ASN1_OCTET_STRING(NULL((void*)0), &attrp, key_attr[1].ulValueLen); |
| 766 | if (octet == NULL((void*)0)) { |
| 767 | ossl_error("d2i_ASN1_OCTET_STRING failed"); |
| 768 | goto fail; |
| 769 | } |
| 770 | attrp = octet->data; |
| 771 | if (o2i_ECPublicKey(&ec, &attrp, octet->length) == NULL((void*)0)) { |
| 772 | ossl_error("o2i_ECPublicKey failed"); |
| 773 | goto fail; |
| 774 | } |
| 775 | |
| 776 | nid = sshkey_ecdsa_key_to_nid(ec); |
| 777 | if (nid < 0) { |
| 778 | error("couldn't get curve nid")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 778, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "couldn't get curve nid" ); |
| 779 | goto fail; |
| 780 | } |
| 781 | |
| 782 | if (pkcs11_ecdsa_wrap(p, slotidx, &key_attr[0], ec)) |
| 783 | goto fail; |
| 784 | |
| 785 | key = sshkey_new(KEY_UNSPEC); |
| 786 | if (key == NULL((void*)0)) { |
| 787 | error("sshkey_new failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 787, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "sshkey_new failed" ); |
| 788 | goto fail; |
| 789 | } |
| 790 | |
| 791 | key->ecdsa = ec; |
| 792 | key->ecdsa_nid = nid; |
| 793 | key->type = KEY_ECDSA; |
| 794 | key->flags |= SSHKEY_FLAG_EXT0x0001; |
| 795 | ec = NULL((void*)0); /* now owned by key */ |
| 796 | |
| 797 | fail: |
| 798 | for (i = 0; i < 3; i++) |
| 799 | free(key_attr[i].pValue); |
| 800 | if (ec) |
| 801 | EC_KEY_free(ec); |
| 802 | if (group) |
| 803 | EC_GROUP_free(group); |
| 804 | if (octet) |
| 805 | ASN1_OCTET_STRING_free(octet); |
| 806 | |
| 807 | return (key); |
| 808 | } |
| 809 | |
| 810 | static struct sshkey * |
| 811 | pkcs11_fetch_rsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 812 | CK_OBJECT_HANDLE *obj) |
| 813 | { |
| 814 | CK_ATTRIBUTE key_attr[3]; |
| 815 | CK_SESSION_HANDLE session; |
| 816 | CK_FUNCTION_LIST *f = NULL((void*)0); |
| 817 | CK_RV rv; |
| 818 | RSA *rsa = NULL((void*)0); |
| 819 | BIGNUM *rsa_n, *rsa_e; |
| 820 | struct sshkey *key = NULL((void*)0); |
| 821 | int i; |
| 822 | |
| 823 | memset(&key_attr, 0, sizeof(key_attr)); |
| 824 | key_attr[0].type = CKA_ID(0x102); |
| 825 | key_attr[1].type = CKA_MODULUS(0x120); |
| 826 | key_attr[2].type = CKA_PUBLIC_EXPONENT(0x122); |
| 827 | |
| 828 | session = p->slotinfo[slotidx].session; |
| 829 | f = p->function_list; |
| 830 | |
| 831 | /* figure out size of the attributes */ |
| 832 | rv = f->C_GetAttributeValue(session, *obj, key_attr, 3); |
| 833 | if (rv != CKR_OK(0)) { |
| 834 | error("C_GetAttributeValue failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 834, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetAttributeValue failed: %lu" , rv); |
| 835 | return (NULL((void*)0)); |
| 836 | } |
| 837 | |
| 838 | /* |
| 839 | * Allow CKA_ID (always first attribute) to be empty, but |
| 840 | * ensure that none of the others are zero length. |
| 841 | * XXX assumes CKA_ID is always first. |
| 842 | */ |
| 843 | if (key_attr[1].ulValueLen == 0 || |
| 844 | key_attr[2].ulValueLen == 0) { |
| 845 | error("invalid attribute length")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 845, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "invalid attribute length" ); |
| 846 | return (NULL((void*)0)); |
| 847 | } |
| 848 | |
| 849 | /* allocate buffers for attributes */ |
| 850 | for (i = 0; i < 3; i++) |
| 851 | if (key_attr[i].ulValueLen > 0) |
| 852 | key_attr[i].pValue = xcalloc(1, key_attr[i].ulValueLen); |
| 853 | |
| 854 | /* retrieve ID, modulus and public exponent of RSA key */ |
| 855 | rv = f->C_GetAttributeValue(session, *obj, key_attr, 3); |
| 856 | if (rv != CKR_OK(0)) { |
| 857 | error("C_GetAttributeValue failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 857, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetAttributeValue failed: %lu" , rv); |
| 858 | goto fail; |
| 859 | } |
| 860 | |
| 861 | rsa = RSA_new(); |
| 862 | if (rsa == NULL((void*)0)) { |
| 863 | error("RSA_new failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 863, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "RSA_new failed" ); |
| 864 | goto fail; |
| 865 | } |
| 866 | |
| 867 | rsa_n = BN_bin2bn(key_attr[1].pValue, key_attr[1].ulValueLen, NULL((void*)0)); |
| 868 | rsa_e = BN_bin2bn(key_attr[2].pValue, key_attr[2].ulValueLen, NULL((void*)0)); |
| 869 | if (rsa_n == NULL((void*)0) || rsa_e == NULL((void*)0)) { |
| 870 | error("BN_bin2bn failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 870, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "BN_bin2bn failed" ); |
| 871 | goto fail; |
| 872 | } |
| 873 | if (!RSA_set0_key(rsa, rsa_n, rsa_e, NULL((void*)0))) |
| 874 | fatal_f("set key")sshfatal("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 874, 1, SYSLOG_LEVEL_FATAL, ((void*)0), "set key" ); |
| 875 | rsa_n = rsa_e = NULL((void*)0); /* transferred */ |
| 876 | |
| 877 | if (pkcs11_rsa_wrap(p, slotidx, &key_attr[0], rsa)) |
| 878 | goto fail; |
| 879 | |
| 880 | key = sshkey_new(KEY_UNSPEC); |
| 881 | if (key == NULL((void*)0)) { |
| 882 | error("sshkey_new failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 882, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "sshkey_new failed" ); |
| 883 | goto fail; |
| 884 | } |
| 885 | |
| 886 | key->rsa = rsa; |
| 887 | key->type = KEY_RSA; |
| 888 | key->flags |= SSHKEY_FLAG_EXT0x0001; |
| 889 | rsa = NULL((void*)0); /* now owned by key */ |
| 890 | |
| 891 | fail: |
| 892 | for (i = 0; i < 3; i++) |
| 893 | free(key_attr[i].pValue); |
| 894 | RSA_free(rsa); |
| 895 | |
| 896 | return (key); |
| 897 | } |
| 898 | |
| 899 | static int |
| 900 | pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 901 | CK_OBJECT_HANDLE *obj, struct sshkey **keyp, char **labelp) |
| 902 | { |
| 903 | CK_ATTRIBUTE cert_attr[3]; |
| 904 | CK_SESSION_HANDLE session; |
| 905 | CK_FUNCTION_LIST *f = NULL((void*)0); |
| 906 | CK_RV rv; |
| 907 | X509 *x509 = NULL((void*)0); |
| 908 | X509_NAME *x509_name = NULL((void*)0); |
| 909 | EVP_PKEY *evp; |
| 910 | RSA *rsa = NULL((void*)0); |
| 911 | EC_KEY *ec = NULL((void*)0); |
| 912 | struct sshkey *key = NULL((void*)0); |
| 913 | int i; |
| 914 | int nid; |
| 915 | const u_char *cp; |
| 916 | char *subject = NULL((void*)0); |
| 917 | |
| 918 | *keyp = NULL((void*)0); |
| 919 | *labelp = NULL((void*)0); |
| 920 | |
| 921 | memset(&cert_attr, 0, sizeof(cert_attr)); |
| 922 | cert_attr[0].type = CKA_ID(0x102); |
| 923 | cert_attr[1].type = CKA_SUBJECT(0x101); |
| 924 | cert_attr[2].type = CKA_VALUE(0x11); |
| 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(0)) { |
| 932 | error("C_GetAttributeValue failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 932, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetAttributeValue failed: %lu" , rv); |
| 933 | return -1; |
| 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")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 943, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "invalid attribute length" ); |
| 944 | return -1; |
| 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(0)) { |
| 955 | error("C_GetAttributeValue failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 955, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetAttributeValue failed: %lu" , rv); |
| 956 | goto out; |
| 957 | } |
| 958 | |
| 959 | /* Decode DER-encoded cert subject */ |
| 960 | cp = cert_attr[1].pValue; |
| 961 | if ((x509_name = d2i_X509_NAME(NULL((void*)0), &cp, |
| 962 | cert_attr[1].ulValueLen)) == NULL((void*)0) || |
| 963 | (subject = X509_NAME_oneline(x509_name, NULL((void*)0), 0)) == NULL((void*)0)) |
| 964 | subject = xstrdup("invalid subject"); |
| 965 | X509_NAME_free(x509_name); |
| 966 | |
| 967 | cp = cert_attr[2].pValue; |
| 968 | if ((x509 = d2i_X509(NULL((void*)0), &cp, cert_attr[2].ulValueLen)) == NULL((void*)0)) { |
| 969 | error("d2i_x509 failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 969, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "d2i_x509 failed" ); |
| 970 | goto out; |
| 971 | } |
| 972 | |
| 973 | if ((evp = X509_get_pubkey(x509)) == NULL((void*)0)) { |
| 974 | error("X509_get_pubkey failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 974, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "X509_get_pubkey failed" ); |
| 975 | goto out; |
| 976 | } |
| 977 | |
| 978 | if (EVP_PKEY_base_id(evp) == EVP_PKEY_RSA6) { |
| 979 | if (EVP_PKEY_get0_RSA(evp) == NULL((void*)0)) { |
| 980 | error("invalid x509; no rsa key")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 980, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "invalid x509; no rsa key" ); |
| 981 | goto out; |
| 982 | } |
| 983 | if ((rsa = RSAPublicKey_dup(EVP_PKEY_get0_RSA(evp))) == NULL((void*)0)) { |
| 984 | error("RSAPublicKey_dup failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 984, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "RSAPublicKey_dup failed" ); |
| 985 | goto out; |
| 986 | } |
| 987 | |
| 988 | if (pkcs11_rsa_wrap(p, slotidx, &cert_attr[0], rsa)) |
| 989 | goto out; |
| 990 | |
| 991 | key = sshkey_new(KEY_UNSPEC); |
| 992 | if (key == NULL((void*)0)) { |
| 993 | error("sshkey_new failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 993, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "sshkey_new failed" ); |
| 994 | goto out; |
| 995 | } |
| 996 | |
| 997 | key->rsa = rsa; |
| 998 | key->type = KEY_RSA; |
| 999 | key->flags |= SSHKEY_FLAG_EXT0x0001; |
| 1000 | rsa = NULL((void*)0); /* now owned by key */ |
| 1001 | } else if (EVP_PKEY_base_id(evp) == EVP_PKEY_EC408) { |
| 1002 | if (EVP_PKEY_get0_EC_KEY(evp) == NULL((void*)0)) { |
| 1003 | error("invalid x509; no ec key")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1003, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "invalid x509; no ec key" ); |
| 1004 | goto out; |
| 1005 | } |
| 1006 | if ((ec = EC_KEY_dup(EVP_PKEY_get0_EC_KEY(evp))) == NULL((void*)0)) { |
| 1007 | error("EC_KEY_dup failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1007, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "EC_KEY_dup failed" ); |
| 1008 | goto out; |
| 1009 | } |
| 1010 | |
| 1011 | nid = sshkey_ecdsa_key_to_nid(ec); |
| 1012 | if (nid < 0) { |
| 1013 | error("couldn't get curve nid")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1013, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "couldn't get curve nid" ); |
| 1014 | goto out; |
| 1015 | } |
| 1016 | |
| 1017 | if (pkcs11_ecdsa_wrap(p, slotidx, &cert_attr[0], ec)) |
| 1018 | goto out; |
| 1019 | |
| 1020 | key = sshkey_new(KEY_UNSPEC); |
| 1021 | if (key == NULL((void*)0)) { |
| 1022 | error("sshkey_new failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1022, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "sshkey_new failed" ); |
| 1023 | goto out; |
| 1024 | } |
| 1025 | |
| 1026 | key->ecdsa = ec; |
| 1027 | key->ecdsa_nid = nid; |
| 1028 | key->type = KEY_ECDSA; |
| 1029 | key->flags |= SSHKEY_FLAG_EXT0x0001; |
| 1030 | ec = NULL((void*)0); /* now owned by key */ |
| 1031 | } else { |
| 1032 | error("unknown certificate key type")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1032, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "unknown certificate key type" ); |
| 1033 | goto out; |
| 1034 | } |
| 1035 | out: |
| 1036 | for (i = 0; i < 3; i++) |
| 1037 | free(cert_attr[i].pValue); |
| 1038 | X509_free(x509); |
| 1039 | RSA_free(rsa); |
| 1040 | EC_KEY_free(ec); |
| 1041 | if (key == NULL((void*)0)) { |
| 1042 | free(subject); |
| 1043 | return -1; |
| 1044 | } |
| 1045 | /* success */ |
| 1046 | *keyp = key; |
| 1047 | *labelp = subject; |
| 1048 | return 0; |
| 1049 | } |
| 1050 | |
| 1051 | #if 0 |
| 1052 | static int |
| 1053 | have_rsa_key(const RSA *rsa) |
| 1054 | { |
| 1055 | const BIGNUM *rsa_n, *rsa_e; |
| 1056 | |
| 1057 | RSA_get0_key(rsa, &rsa_n, &rsa_e, NULL((void*)0)); |
| 1058 | return rsa_n != NULL((void*)0) && rsa_e != NULL((void*)0); |
| 1059 | } |
| 1060 | #endif |
| 1061 | |
| 1062 | static void |
| 1063 | note_key(struct pkcs11_provider *p, CK_ULONG slotidx, const char *context, |
| 1064 | struct sshkey *key) |
| 1065 | { |
| 1066 | char *fp; |
| 1067 | |
| 1068 | if ((fp = sshkey_fingerprint(key, SSH_FP_HASH_DEFAULT2, |
| 1069 | SSH_FP_DEFAULT)) == NULL((void*)0)) { |
| 1070 | error_f("sshkey_fingerprint failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1070, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "sshkey_fingerprint failed" ); |
| 1071 | return; |
| 1072 | } |
| 1073 | debug2("%s: provider %s slot %lu: %s %s", context, p->name,sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1074, 0, SYSLOG_LEVEL_DEBUG2, ((void*)0), "%s: provider %s slot %lu: %s %s" , context, p->name, (u_long)slotidx, sshkey_type(key), fp) |
| 1074 | (u_long)slotidx, sshkey_type(key), fp)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1074, 0, SYSLOG_LEVEL_DEBUG2, ((void*)0), "%s: provider %s slot %lu: %s %s" , context, p->name, (u_long)slotidx, sshkey_type(key), fp); |
| 1075 | free(fp); |
| 1076 | } |
| 1077 | |
| 1078 | /* |
| 1079 | * lookup certificates for token in slot identified by slotidx, |
| 1080 | * add 'wrapped' public keys to the 'keysp' array and increment nkeys. |
| 1081 | * keysp points to an (possibly empty) array with *nkeys keys. |
| 1082 | */ |
| 1083 | static int |
| 1084 | pkcs11_fetch_certs(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 1085 | struct sshkey ***keysp, char ***labelsp, int *nkeys) |
| 1086 | { |
| 1087 | struct sshkey *key = NULL((void*)0); |
| 1088 | CK_OBJECT_CLASS key_class; |
| 1089 | CK_ATTRIBUTE key_attr[1]; |
| 1090 | CK_SESSION_HANDLE session; |
| 1091 | CK_FUNCTION_LIST *f = NULL((void*)0); |
| 1092 | CK_RV rv; |
| 1093 | CK_OBJECT_HANDLE obj; |
| 1094 | CK_ULONG n = 0; |
| 1095 | int ret = -1; |
| 1096 | char *label; |
| 1097 | |
| 1098 | memset(&key_attr, 0, sizeof(key_attr)); |
| 1099 | memset(&obj, 0, sizeof(obj)); |
| 1100 | |
| 1101 | key_class = CKO_CERTIFICATE(1); |
| 1102 | key_attr[0].type = CKA_CLASS(0); |
| 1103 | key_attr[0].pValue = &key_class; |
| 1104 | key_attr[0].ulValueLen = sizeof(key_class); |
| 1105 | |
| 1106 | session = p->slotinfo[slotidx].session; |
| 1107 | f = p->function_list; |
| 1108 | |
| 1109 | rv = f->C_FindObjectsInit(session, key_attr, 1); |
| 1110 | if (rv != CKR_OK(0)) { |
| 1111 | error("C_FindObjectsInit failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1111, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_FindObjectsInit failed: %lu" , rv); |
| 1112 | goto fail; |
| 1113 | } |
| 1114 | |
| 1115 | while (1) { |
| 1116 | CK_CERTIFICATE_TYPE ck_cert_type; |
| 1117 | |
| 1118 | rv = f->C_FindObjects(session, &obj, 1, &n); |
| 1119 | if (rv != CKR_OK(0)) { |
| 1120 | error("C_FindObjects failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1120, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_FindObjects failed: %lu" , rv); |
| 1121 | goto fail; |
| 1122 | } |
| 1123 | if (n == 0) |
| 1124 | break; |
| 1125 | |
| 1126 | memset(&ck_cert_type, 0, sizeof(ck_cert_type)); |
| 1127 | memset(&key_attr, 0, sizeof(key_attr)); |
| 1128 | key_attr[0].type = CKA_CERTIFICATE_TYPE(0x80); |
| 1129 | key_attr[0].pValue = &ck_cert_type; |
| 1130 | key_attr[0].ulValueLen = sizeof(ck_cert_type); |
| 1131 | |
| 1132 | rv = f->C_GetAttributeValue(session, obj, key_attr, 1); |
| 1133 | if (rv != CKR_OK(0)) { |
| 1134 | error("C_GetAttributeValue failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1134, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetAttributeValue failed: %lu" , rv); |
| 1135 | goto fail; |
| 1136 | } |
| 1137 | |
| 1138 | key = NULL((void*)0); |
| 1139 | label = NULL((void*)0); |
| 1140 | switch (ck_cert_type) { |
| 1141 | case CKC_X_509(0): |
| 1142 | if (pkcs11_fetch_x509_pubkey(p, slotidx, &obj, |
| 1143 | &key, &label) != 0) { |
| 1144 | error("failed to fetch key")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1144, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "failed to fetch key" ); |
| 1145 | continue; |
| 1146 | } |
| 1147 | break; |
| 1148 | default: |
| 1149 | error("skipping unsupported certificate type %lu",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1150, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "skipping unsupported certificate type %lu" , ck_cert_type) |
| 1150 | ck_cert_type)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1150, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "skipping unsupported certificate type %lu" , ck_cert_type); |
| 1151 | continue; |
| 1152 | } |
| 1153 | note_key(p, slotidx, __func__, key); |
| 1154 | if (pkcs11_key_included(keysp, nkeys, key)) { |
| 1155 | debug2_f("key already included")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1155, 1, SYSLOG_LEVEL_DEBUG2, ((void*)0), "key already included" );; |
| 1156 | sshkey_free(key); |
| 1157 | } else { |
| 1158 | /* expand key array and add key */ |
| 1159 | *keysp = xrecallocarray(*keysp, *nkeys, |
| 1160 | *nkeys + 1, sizeof(struct sshkey *)); |
| 1161 | (*keysp)[*nkeys] = key; |
| 1162 | if (labelsp != NULL((void*)0)) { |
| 1163 | *labelsp = xrecallocarray(*labelsp, *nkeys, |
| 1164 | *nkeys + 1, sizeof(char *)); |
| 1165 | (*labelsp)[*nkeys] = xstrdup((char *)label); |
| 1166 | } |
| 1167 | *nkeys = *nkeys + 1; |
| 1168 | debug("have %d keys", *nkeys)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1168, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "have %d keys" , *nkeys); |
| 1169 | } |
| 1170 | } |
| 1171 | |
| 1172 | ret = 0; |
| 1173 | fail: |
| 1174 | rv = f->C_FindObjectsFinal(session); |
| 1175 | if (rv != CKR_OK(0)) { |
| 1176 | error("C_FindObjectsFinal failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1176, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_FindObjectsFinal failed: %lu" , rv); |
| 1177 | ret = -1; |
| 1178 | } |
| 1179 | |
| 1180 | return (ret); |
| 1181 | } |
| 1182 | |
| 1183 | /* |
| 1184 | * lookup public keys for token in slot identified by slotidx, |
| 1185 | * add 'wrapped' public keys to the 'keysp' array and increment nkeys. |
| 1186 | * keysp points to an (possibly empty) array with *nkeys keys. |
| 1187 | */ |
| 1188 | static int |
| 1189 | pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 1190 | struct sshkey ***keysp, char ***labelsp, int *nkeys) |
| 1191 | { |
| 1192 | struct sshkey *key = NULL((void*)0); |
| 1193 | CK_OBJECT_CLASS key_class; |
| 1194 | CK_ATTRIBUTE key_attr[2]; |
| 1195 | CK_SESSION_HANDLE session; |
| 1196 | CK_FUNCTION_LIST *f = NULL((void*)0); |
| 1197 | CK_RV rv; |
| 1198 | CK_OBJECT_HANDLE obj; |
| 1199 | CK_ULONG n = 0; |
| 1200 | int ret = -1; |
| 1201 | |
| 1202 | memset(&key_attr, 0, sizeof(key_attr)); |
| 1203 | memset(&obj, 0, sizeof(obj)); |
| 1204 | |
| 1205 | key_class = CKO_PUBLIC_KEY(2); |
| 1206 | key_attr[0].type = CKA_CLASS(0); |
| 1207 | key_attr[0].pValue = &key_class; |
| 1208 | key_attr[0].ulValueLen = sizeof(key_class); |
| 1209 | |
| 1210 | session = p->slotinfo[slotidx].session; |
| 1211 | f = p->function_list; |
| 1212 | |
| 1213 | rv = f->C_FindObjectsInit(session, key_attr, 1); |
| 1214 | if (rv != CKR_OK(0)) { |
| 1215 | error("C_FindObjectsInit failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1215, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_FindObjectsInit failed: %lu" , rv); |
| 1216 | goto fail; |
| 1217 | } |
| 1218 | |
| 1219 | while (1) { |
| 1220 | CK_KEY_TYPE ck_key_type; |
| 1221 | CK_UTF8CHAR label[256]; |
| 1222 | |
| 1223 | rv = f->C_FindObjects(session, &obj, 1, &n); |
| 1224 | if (rv != CKR_OK(0)) { |
| 1225 | error("C_FindObjects failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1225, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_FindObjects failed: %lu" , rv); |
| 1226 | goto fail; |
| 1227 | } |
| 1228 | if (n == 0) |
| 1229 | break; |
| 1230 | |
| 1231 | memset(&ck_key_type, 0, sizeof(ck_key_type)); |
| 1232 | memset(&key_attr, 0, sizeof(key_attr)); |
| 1233 | key_attr[0].type = CKA_KEY_TYPE(0x100); |
| 1234 | key_attr[0].pValue = &ck_key_type; |
| 1235 | key_attr[0].ulValueLen = sizeof(ck_key_type); |
| 1236 | key_attr[1].type = CKA_LABEL(3); |
| 1237 | key_attr[1].pValue = &label; |
| 1238 | key_attr[1].ulValueLen = sizeof(label) - 1; |
| 1239 | |
| 1240 | rv = f->C_GetAttributeValue(session, obj, key_attr, 2); |
| 1241 | if (rv != CKR_OK(0)) { |
| 1242 | error("C_GetAttributeValue failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1242, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetAttributeValue failed: %lu" , rv); |
| 1243 | goto fail; |
| 1244 | } |
| 1245 | |
| 1246 | label[key_attr[1].ulValueLen] = '\0'; |
| 1247 | |
| 1248 | switch (ck_key_type) { |
| 1249 | case CKK_RSA(0): |
| 1250 | key = pkcs11_fetch_rsa_pubkey(p, slotidx, &obj); |
| 1251 | break; |
| 1252 | case CKK_ECDSA(3): |
| 1253 | key = pkcs11_fetch_ecdsa_pubkey(p, slotidx, &obj); |
| 1254 | break; |
| 1255 | default: |
| 1256 | /* XXX print key type? */ |
| 1257 | key = NULL((void*)0); |
| 1258 | error("skipping unsupported key type")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1258, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "skipping unsupported key type" ); |
| 1259 | } |
| 1260 | |
| 1261 | if (key == NULL((void*)0)) { |
| 1262 | error("failed to fetch key")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1262, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "failed to fetch key" ); |
| 1263 | continue; |
| 1264 | } |
| 1265 | note_key(p, slotidx, __func__, key); |
| 1266 | if (pkcs11_key_included(keysp, nkeys, key)) { |
| 1267 | debug2_f("key already included")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1267, 1, SYSLOG_LEVEL_DEBUG2, ((void*)0), "key already included" );; |
| 1268 | sshkey_free(key); |
| 1269 | } else { |
| 1270 | /* expand key array and add key */ |
| 1271 | *keysp = xrecallocarray(*keysp, *nkeys, |
| 1272 | *nkeys + 1, sizeof(struct sshkey *)); |
| 1273 | (*keysp)[*nkeys] = key; |
| 1274 | if (labelsp != NULL((void*)0)) { |
| 1275 | *labelsp = xrecallocarray(*labelsp, *nkeys, |
| 1276 | *nkeys + 1, sizeof(char *)); |
| 1277 | (*labelsp)[*nkeys] = xstrdup((char *)label); |
| 1278 | } |
| 1279 | *nkeys = *nkeys + 1; |
| 1280 | debug("have %d keys", *nkeys)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1280, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "have %d keys" , *nkeys); |
| 1281 | } |
| 1282 | } |
| 1283 | |
| 1284 | ret = 0; |
| 1285 | fail: |
| 1286 | rv = f->C_FindObjectsFinal(session); |
| 1287 | if (rv != CKR_OK(0)) { |
| 1288 | error("C_FindObjectsFinal failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1288, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_FindObjectsFinal failed: %lu" , rv); |
| 1289 | ret = -1; |
| 1290 | } |
| 1291 | |
| 1292 | return (ret); |
| 1293 | } |
| 1294 | |
| 1295 | #ifdef WITH_PKCS11_KEYGEN |
| 1296 | #define FILL_ATTR(attr, idx, typ, val, len) \ |
| 1297 | { (attr[idx]).type=(typ); (attr[idx]).pValue=(val); (attr[idx]).ulValueLen=len; idx++; } |
| 1298 | |
| 1299 | static struct sshkey * |
| 1300 | pkcs11_rsa_generate_private_key(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 1301 | char *label, CK_ULONG bits, CK_BYTE keyid, u_int32_t *err) |
| 1302 | { |
| 1303 | struct pkcs11_slotinfo *si; |
| 1304 | char *plabel = label ? label : ""; |
| 1305 | int npub = 0, npriv = 0; |
| 1306 | CK_RV rv; |
| 1307 | CK_FUNCTION_LIST *f; |
| 1308 | CK_SESSION_HANDLE session; |
| 1309 | CK_BBOOL true_val = CK_TRUE1, false_val = CK_FALSE0; |
| 1310 | CK_OBJECT_HANDLE pubKey, privKey; |
| 1311 | CK_ATTRIBUTE tpub[16], tpriv[16]; |
| 1312 | CK_MECHANISM mech = { |
| 1313 | CKM_RSA_PKCS_KEY_PAIR_GEN(0), NULL_PTR((void*)0), 0 |
| 1314 | }; |
| 1315 | CK_BYTE pubExponent[] = { |
| 1316 | 0x01, 0x00, 0x01 /* RSA_F4 in bytes */ |
| 1317 | }; |
| 1318 | |
| 1319 | *err = 0; |
| 1320 | |
| 1321 | FILL_ATTR(tpub, npub, CKA_TOKEN(1), &true_val, sizeof(true_val)); |
| 1322 | FILL_ATTR(tpub, npub, CKA_LABEL(3), plabel, strlen(plabel)); |
| 1323 | FILL_ATTR(tpub, npub, CKA_ENCRYPT(0x104), &false_val, sizeof(false_val)); |
| 1324 | FILL_ATTR(tpub, npub, CKA_VERIFY(0x10a), &true_val, sizeof(true_val)); |
| 1325 | FILL_ATTR(tpub, npub, CKA_VERIFY_RECOVER(0x10b), &false_val, |
| 1326 | sizeof(false_val)); |
| 1327 | FILL_ATTR(tpub, npub, CKA_WRAP(0x106), &false_val, sizeof(false_val)); |
| 1328 | FILL_ATTR(tpub, npub, CKA_DERIVE(0x10c), &false_val, sizeof(false_val)); |
| 1329 | FILL_ATTR(tpub, npub, CKA_MODULUS_BITS(0x121), &bits, sizeof(bits)); |
| 1330 | FILL_ATTR(tpub, npub, CKA_PUBLIC_EXPONENT(0x122), pubExponent, |
| 1331 | sizeof(pubExponent)); |
| 1332 | FILL_ATTR(tpub, npub, CKA_ID(0x102), &keyid, sizeof(keyid)); |
| 1333 | |
| 1334 | FILL_ATTR(tpriv, npriv, CKA_TOKEN(1), &true_val, sizeof(true_val)); |
| 1335 | FILL_ATTR(tpriv, npriv, CKA_LABEL(3), plabel, strlen(plabel)); |
| 1336 | FILL_ATTR(tpriv, npriv, CKA_PRIVATE(2), &true_val, sizeof(true_val)); |
| 1337 | FILL_ATTR(tpriv, npriv, CKA_SENSITIVE(0x103), &true_val, sizeof(true_val)); |
| 1338 | FILL_ATTR(tpriv, npriv, CKA_DECRYPT(0x105), &false_val, sizeof(false_val)); |
| 1339 | FILL_ATTR(tpriv, npriv, CKA_SIGN(0x108), &true_val, sizeof(true_val)); |
| 1340 | FILL_ATTR(tpriv, npriv, CKA_SIGN_RECOVER(0x109), &false_val, |
| 1341 | sizeof(false_val)); |
| 1342 | FILL_ATTR(tpriv, npriv, CKA_UNWRAP(0x107), &false_val, sizeof(false_val)); |
| 1343 | FILL_ATTR(tpriv, npriv, CKA_DERIVE(0x10c), &false_val, sizeof(false_val)); |
| 1344 | FILL_ATTR(tpriv, npriv, CKA_ID(0x102), &keyid, sizeof(keyid)); |
| 1345 | |
| 1346 | f = p->function_list; |
| 1347 | si = &p->slotinfo[slotidx]; |
| 1348 | session = si->session; |
| 1349 | |
| 1350 | if ((rv = f->C_GenerateKeyPair(session, &mech, tpub, npub, tpriv, npriv, |
| 1351 | &pubKey, &privKey)) != CKR_OK(0)) { |
| 1352 | error_f("key generation failed: error 0x%lx", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1352, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "key generation failed: error 0x%lx" , rv); |
| 1353 | *err = rv; |
| 1354 | return NULL((void*)0); |
| 1355 | } |
| 1356 | |
| 1357 | return pkcs11_fetch_rsa_pubkey(p, slotidx, &pubKey); |
| 1358 | } |
| 1359 | |
| 1360 | static int |
| 1361 | pkcs11_decode_hex(const char *hex, unsigned char **dest, size_t *rlen) |
| 1362 | { |
| 1363 | size_t i, len; |
| 1364 | char ptr[3]; |
| 1365 | |
| 1366 | if (dest) |
| 1367 | *dest = NULL((void*)0); |
| 1368 | if (rlen) |
| 1369 | *rlen = 0; |
| 1370 | |
| 1371 | if ((len = strlen(hex)) % 2) |
| 1372 | return -1; |
| 1373 | len /= 2; |
| 1374 | |
| 1375 | *dest = xmalloc(len); |
| 1376 | |
| 1377 | ptr[2] = '\0'; |
| 1378 | for (i = 0; i < len; i++) { |
| 1379 | ptr[0] = hex[2 * i]; |
| 1380 | ptr[1] = hex[(2 * i) + 1]; |
| 1381 | if (!isxdigit(ptr[0]) || !isxdigit(ptr[1])) |
| 1382 | return -1; |
| 1383 | (*dest)[i] = (unsigned char)strtoul(ptr, NULL((void*)0), 16); |
| 1384 | } |
| 1385 | |
| 1386 | if (rlen) |
| 1387 | *rlen = len; |
| 1388 | |
| 1389 | return 0; |
| 1390 | } |
| 1391 | |
| 1392 | static struct ec_curve_info { |
| 1393 | const char *name; |
| 1394 | const char *oid; |
| 1395 | const char *oid_encoded; |
| 1396 | size_t size; |
| 1397 | } ec_curve_infos[] = { |
| 1398 | {"prime256v1", "1.2.840.10045.3.1.7", "06082A8648CE3D030107", 256}, |
| 1399 | {"secp384r1", "1.3.132.0.34", "06052B81040022", 384}, |
| 1400 | {"secp521r1", "1.3.132.0.35", "06052B81040023", 521}, |
| 1401 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), 0}, |
| 1402 | }; |
| 1403 | |
| 1404 | static struct sshkey * |
| 1405 | pkcs11_ecdsa_generate_private_key(struct pkcs11_provider *p, CK_ULONG slotidx, |
| 1406 | char *label, CK_ULONG bits, CK_BYTE keyid, u_int32_t *err) |
| 1407 | { |
| 1408 | struct pkcs11_slotinfo *si; |
| 1409 | char *plabel = label ? label : ""; |
| 1410 | int i; |
| 1411 | size_t ecparams_size; |
| 1412 | unsigned char *ecparams = NULL((void*)0); |
| 1413 | int npub = 0, npriv = 0; |
| 1414 | CK_RV rv; |
| 1415 | CK_FUNCTION_LIST *f; |
| 1416 | CK_SESSION_HANDLE session; |
| 1417 | CK_BBOOL true_val = CK_TRUE1, false_val = CK_FALSE0; |
| 1418 | CK_OBJECT_HANDLE pubKey, privKey; |
| 1419 | CK_MECHANISM mech = { |
| 1420 | CKM_EC_KEY_PAIR_GEN(0x1040), NULL_PTR((void*)0), 0 |
| 1421 | }; |
| 1422 | CK_ATTRIBUTE tpub[16], tpriv[16]; |
| 1423 | |
| 1424 | *err = 0; |
| 1425 | |
| 1426 | for (i = 0; ec_curve_infos[i].name; i++) { |
| 1427 | if (ec_curve_infos[i].size == bits) |
| 1428 | break; |
| 1429 | } |
| 1430 | if (!ec_curve_infos[i].name) { |
| 1431 | error_f("invalid key size %lu", bits)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1431, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "invalid key size %lu" , bits); |
| 1432 | return NULL((void*)0); |
| 1433 | } |
| 1434 | if (pkcs11_decode_hex(ec_curve_infos[i].oid_encoded, &ecparams, |
| 1435 | &ecparams_size) == -1) { |
| 1436 | error_f("invalid oid")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1436, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "invalid oid" ); |
| 1437 | return NULL((void*)0); |
| 1438 | } |
| 1439 | |
| 1440 | FILL_ATTR(tpub, npub, CKA_TOKEN(1), &true_val, sizeof(true_val)); |
| 1441 | FILL_ATTR(tpub, npub, CKA_LABEL(3), plabel, strlen(plabel)); |
| 1442 | FILL_ATTR(tpub, npub, CKA_ENCRYPT(0x104), &false_val, sizeof(false_val)); |
| 1443 | FILL_ATTR(tpub, npub, CKA_VERIFY(0x10a), &true_val, sizeof(true_val)); |
| 1444 | FILL_ATTR(tpub, npub, CKA_VERIFY_RECOVER(0x10b), &false_val, |
| 1445 | sizeof(false_val)); |
| 1446 | FILL_ATTR(tpub, npub, CKA_WRAP(0x106), &false_val, sizeof(false_val)); |
| 1447 | FILL_ATTR(tpub, npub, CKA_DERIVE(0x10c), &false_val, sizeof(false_val)); |
| 1448 | FILL_ATTR(tpub, npub, CKA_EC_PARAMS(0x180), ecparams, ecparams_size); |
| 1449 | FILL_ATTR(tpub, npub, CKA_ID(0x102), &keyid, sizeof(keyid)); |
| 1450 | |
| 1451 | FILL_ATTR(tpriv, npriv, CKA_TOKEN(1), &true_val, sizeof(true_val)); |
| 1452 | FILL_ATTR(tpriv, npriv, CKA_LABEL(3), plabel, strlen(plabel)); |
| 1453 | FILL_ATTR(tpriv, npriv, CKA_PRIVATE(2), &true_val, sizeof(true_val)); |
| 1454 | FILL_ATTR(tpriv, npriv, CKA_SENSITIVE(0x103), &true_val, sizeof(true_val)); |
| 1455 | FILL_ATTR(tpriv, npriv, CKA_DECRYPT(0x105), &false_val, sizeof(false_val)); |
| 1456 | FILL_ATTR(tpriv, npriv, CKA_SIGN(0x108), &true_val, sizeof(true_val)); |
| 1457 | FILL_ATTR(tpriv, npriv, CKA_SIGN_RECOVER(0x109), &false_val, |
| 1458 | sizeof(false_val)); |
| 1459 | FILL_ATTR(tpriv, npriv, CKA_UNWRAP(0x107), &false_val, sizeof(false_val)); |
| 1460 | FILL_ATTR(tpriv, npriv, CKA_DERIVE(0x10c), &false_val, sizeof(false_val)); |
| 1461 | FILL_ATTR(tpriv, npriv, CKA_ID(0x102), &keyid, sizeof(keyid)); |
| 1462 | |
| 1463 | f = p->function_list; |
| 1464 | si = &p->slotinfo[slotidx]; |
| 1465 | session = si->session; |
| 1466 | |
| 1467 | if ((rv = f->C_GenerateKeyPair(session, &mech, tpub, npub, tpriv, npriv, |
| 1468 | &pubKey, &privKey)) != CKR_OK(0)) { |
| 1469 | error_f("key generation failed: error 0x%lx", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1469, 1, SYSLOG_LEVEL_ERROR, ((void*)0), "key generation failed: error 0x%lx" , rv); |
| 1470 | *err = rv; |
| 1471 | return NULL((void*)0); |
| 1472 | } |
| 1473 | |
| 1474 | return pkcs11_fetch_ecdsa_pubkey(p, slotidx, &pubKey); |
| 1475 | } |
| 1476 | #endif /* WITH_PKCS11_KEYGEN */ |
| 1477 | |
| 1478 | /* |
| 1479 | * register a new provider, fails if provider already exists. if |
| 1480 | * keyp is provided, fetch keys. |
| 1481 | */ |
| 1482 | static int |
| 1483 | pkcs11_register_provider(char *provider_id, char *pin, |
| 1484 | struct sshkey ***keyp, char ***labelsp, |
| 1485 | struct pkcs11_provider **providerp, CK_ULONG user) |
| 1486 | { |
| 1487 | int nkeys, need_finalize = 0; |
| 1488 | int ret = -1; |
| 1489 | struct pkcs11_provider *p = NULL((void*)0); |
| 1490 | void *handle = NULL((void*)0); |
| 1491 | CK_RV (*getfunctionlist)(CK_FUNCTION_LIST **); |
| 1492 | CK_RV rv; |
| 1493 | CK_FUNCTION_LIST *f = NULL((void*)0); |
| 1494 | CK_TOKEN_INFO *token; |
| 1495 | CK_ULONG i; |
| 1496 | |
| 1497 | if (providerp == NULL((void*)0)) |
| 1498 | goto fail; |
| 1499 | *providerp = NULL((void*)0); |
| 1500 | |
| 1501 | if (keyp != NULL((void*)0)) |
| 1502 | *keyp = NULL((void*)0); |
| 1503 | if (labelsp != NULL((void*)0)) |
| 1504 | *labelsp = NULL((void*)0); |
| 1505 | |
| 1506 | if (pkcs11_provider_lookup(provider_id) != NULL((void*)0)) { |
| 1507 | debug_f("provider already registered: %s", provider_id)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1507, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider already registered: %s" , provider_id); |
| 1508 | goto fail; |
| 1509 | } |
| 1510 | /* open shared pkcs11-library */ |
| 1511 | if ((handle = dlopen(provider_id, RTLD_NOW2)) == NULL((void*)0)) { |
| 1512 | error("dlopen %s failed: %s", provider_id, dlerror())sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1512, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "dlopen %s failed: %s" , provider_id, dlerror()); |
| 1513 | goto fail; |
| 1514 | } |
| 1515 | if ((getfunctionlist = dlsym(handle, "C_GetFunctionList")) == NULL((void*)0)) { |
| 1516 | error("dlsym(C_GetFunctionList) failed: %s", dlerror())sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1516, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "dlsym(C_GetFunctionList) failed: %s" , dlerror()); |
| 1517 | goto fail; |
| 1518 | } |
| 1519 | p = xcalloc(1, sizeof(*p)); |
| 1520 | p->name = xstrdup(provider_id); |
| 1521 | p->handle = handle; |
| 1522 | /* setup the pkcs11 callbacks */ |
| 1523 | if ((rv = (*getfunctionlist)(&f)) != CKR_OK(0)) { |
| 1524 | error("C_GetFunctionList for provider %s failed: %lu",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1525, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetFunctionList for provider %s failed: %lu" , provider_id, rv) |
| 1525 | provider_id, rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1525, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetFunctionList for provider %s failed: %lu" , provider_id, rv); |
| 1526 | goto fail; |
| 1527 | } |
| 1528 | p->function_list = f; |
| 1529 | if ((rv = f->C_Initialize(NULL((void*)0))) != CKR_OK(0)) { |
| 1530 | error("C_Initialize for provider %s failed: %lu",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1531, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_Initialize for provider %s failed: %lu" , provider_id, rv) |
| 1531 | provider_id, rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1531, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_Initialize for provider %s failed: %lu" , provider_id, rv); |
| 1532 | goto fail; |
| 1533 | } |
| 1534 | need_finalize = 1; |
| 1535 | if ((rv = f->C_GetInfo(&p->info)) != CKR_OK(0)) { |
| 1536 | error("C_GetInfo for provider %s failed: %lu",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1537, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetInfo for provider %s failed: %lu" , provider_id, rv) |
| 1537 | provider_id, rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1537, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetInfo for provider %s failed: %lu" , provider_id, rv); |
| 1538 | goto fail; |
| 1539 | } |
| 1540 | rmspace(p->info.manufacturerID, sizeof(p->info.manufacturerID)); |
| 1541 | rmspace(p->info.libraryDescription, sizeof(p->info.libraryDescription)); |
| 1542 | debug("provider %s: manufacturerID <%s> cryptokiVersion %d.%d"sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1550, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s: manufacturerID <%s> cryptokiVersion %d.%d" " libraryDescription <%s> libraryVersion %d.%d", provider_id , p->info.manufacturerID, p->info.cryptokiVersion.major , p->info.cryptokiVersion.minor, p->info.libraryDescription , p->info.libraryVersion.major, p->info.libraryVersion. minor) |
| 1543 | " libraryDescription <%s> libraryVersion %d.%d",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1550, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s: manufacturerID <%s> cryptokiVersion %d.%d" " libraryDescription <%s> libraryVersion %d.%d", provider_id , p->info.manufacturerID, p->info.cryptokiVersion.major , p->info.cryptokiVersion.minor, p->info.libraryDescription , p->info.libraryVersion.major, p->info.libraryVersion. minor) |
| 1544 | provider_id,sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1550, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s: manufacturerID <%s> cryptokiVersion %d.%d" " libraryDescription <%s> libraryVersion %d.%d", provider_id , p->info.manufacturerID, p->info.cryptokiVersion.major , p->info.cryptokiVersion.minor, p->info.libraryDescription , p->info.libraryVersion.major, p->info.libraryVersion. minor) |
| 1545 | p->info.manufacturerID,sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1550, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s: manufacturerID <%s> cryptokiVersion %d.%d" " libraryDescription <%s> libraryVersion %d.%d", provider_id , p->info.manufacturerID, p->info.cryptokiVersion.major , p->info.cryptokiVersion.minor, p->info.libraryDescription , p->info.libraryVersion.major, p->info.libraryVersion. minor) |
| 1546 | p->info.cryptokiVersion.major,sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1550, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s: manufacturerID <%s> cryptokiVersion %d.%d" " libraryDescription <%s> libraryVersion %d.%d", provider_id , p->info.manufacturerID, p->info.cryptokiVersion.major , p->info.cryptokiVersion.minor, p->info.libraryDescription , p->info.libraryVersion.major, p->info.libraryVersion. minor) |
| 1547 | p->info.cryptokiVersion.minor,sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1550, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s: manufacturerID <%s> cryptokiVersion %d.%d" " libraryDescription <%s> libraryVersion %d.%d", provider_id , p->info.manufacturerID, p->info.cryptokiVersion.major , p->info.cryptokiVersion.minor, p->info.libraryDescription , p->info.libraryVersion.major, p->info.libraryVersion. minor) |
| 1548 | p->info.libraryDescription,sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1550, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s: manufacturerID <%s> cryptokiVersion %d.%d" " libraryDescription <%s> libraryVersion %d.%d", provider_id , p->info.manufacturerID, p->info.cryptokiVersion.major , p->info.cryptokiVersion.minor, p->info.libraryDescription , p->info.libraryVersion.major, p->info.libraryVersion. minor) |
| 1549 | p->info.libraryVersion.major,sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1550, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s: manufacturerID <%s> cryptokiVersion %d.%d" " libraryDescription <%s> libraryVersion %d.%d", provider_id , p->info.manufacturerID, p->info.cryptokiVersion.major , p->info.cryptokiVersion.minor, p->info.libraryDescription , p->info.libraryVersion.major, p->info.libraryVersion. minor) |
| 1550 | p->info.libraryVersion.minor)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1550, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s: manufacturerID <%s> cryptokiVersion %d.%d" " libraryDescription <%s> libraryVersion %d.%d", provider_id , p->info.manufacturerID, p->info.cryptokiVersion.major , p->info.cryptokiVersion.minor, p->info.libraryDescription , p->info.libraryVersion.major, p->info.libraryVersion. minor); |
| 1551 | if ((rv = f->C_GetSlotList(CK_TRUE1, NULL((void*)0), &p->nslots)) != CKR_OK(0)) { |
| 1552 | error("C_GetSlotList failed: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1552, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetSlotList failed: %lu" , rv); |
| 1553 | goto fail; |
| 1554 | } |
| 1555 | if (p->nslots == 0) { |
| 1556 | debug_f("provider %s returned no slots", provider_id)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1556, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s returned no slots" , provider_id); |
| 1557 | ret = -SSH_PKCS11_ERR_NO_SLOTS3; |
| 1558 | goto fail; |
| 1559 | } |
| 1560 | p->slotlist = xcalloc(p->nslots, sizeof(CK_SLOT_ID)); |
| 1561 | if ((rv = f->C_GetSlotList(CK_TRUE1, p->slotlist, &p->nslots)) |
| 1562 | != CKR_OK(0)) { |
| 1563 | error("C_GetSlotList for provider %s failed: %lu",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1564, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetSlotList for provider %s failed: %lu" , provider_id, rv) |
| 1564 | provider_id, rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1564, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetSlotList for provider %s failed: %lu" , provider_id, rv); |
| 1565 | goto fail; |
| 1566 | } |
| 1567 | p->slotinfo = xcalloc(p->nslots, sizeof(struct pkcs11_slotinfo)); |
| 1568 | p->valid = 1; |
| 1569 | nkeys = 0; |
| 1570 | for (i = 0; i < p->nslots; i++) { |
| 1571 | token = &p->slotinfo[i].token; |
| 1572 | if ((rv = f->C_GetTokenInfo(p->slotlist[i], token)) |
| 1573 | != CKR_OK(0)) { |
| 1574 | error("C_GetTokenInfo for provider %s slot %lu "sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1575, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetTokenInfo for provider %s slot %lu " "failed: %lu", provider_id, (u_long)i, rv) |
| 1575 | "failed: %lu", provider_id, (u_long)i, rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1575, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_GetTokenInfo for provider %s slot %lu " "failed: %lu", provider_id, (u_long)i, rv); |
| 1576 | continue; |
| 1577 | } |
| 1578 | if ((token->flags & CKF_TOKEN_INITIALIZED(1 << 10)) == 0) { |
| 1579 | debug2_f("ignoring uninitialised token in "sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1580, 1, SYSLOG_LEVEL_DEBUG2, ((void*)0), "ignoring uninitialised token in " "provider %s slot %lu", provider_id, (u_long)i) |
| 1580 | "provider %s slot %lu", provider_id, (u_long)i)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1580, 1, SYSLOG_LEVEL_DEBUG2, ((void*)0), "ignoring uninitialised token in " "provider %s slot %lu", provider_id, (u_long)i); |
| 1581 | continue; |
| 1582 | } |
| 1583 | rmspace(token->label, sizeof(token->label)); |
| 1584 | rmspace(token->manufacturerID, sizeof(token->manufacturerID)); |
| 1585 | rmspace(token->model, sizeof(token->model)); |
| 1586 | rmspace(token->serialNumber, sizeof(token->serialNumber)); |
| 1587 | debug("provider %s slot %lu: label <%s> manufacturerID <%s> "sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1591, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s slot %lu: label <%s> manufacturerID <%s> " "model <%s> serial <%s> flags 0x%lx", provider_id , (unsigned long)i, token->label, token->manufacturerID , token->model, token->serialNumber, token->flags) |
| 1588 | "model <%s> serial <%s> flags 0x%lx",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1591, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s slot %lu: label <%s> manufacturerID <%s> " "model <%s> serial <%s> flags 0x%lx", provider_id , (unsigned long)i, token->label, token->manufacturerID , token->model, token->serialNumber, token->flags) |
| 1589 | provider_id, (unsigned long)i,sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1591, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s slot %lu: label <%s> manufacturerID <%s> " "model <%s> serial <%s> flags 0x%lx", provider_id , (unsigned long)i, token->label, token->manufacturerID , token->model, token->serialNumber, token->flags) |
| 1590 | token->label, token->manufacturerID, token->model,sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1591, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s slot %lu: label <%s> manufacturerID <%s> " "model <%s> serial <%s> flags 0x%lx", provider_id , (unsigned long)i, token->label, token->manufacturerID , token->model, token->serialNumber, token->flags) |
| 1591 | token->serialNumber, token->flags)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1591, 0, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s slot %lu: label <%s> manufacturerID <%s> " "model <%s> serial <%s> flags 0x%lx", provider_id , (unsigned long)i, token->label, token->manufacturerID , token->model, token->serialNumber, token->flags); |
| 1592 | /* |
| 1593 | * open session, login with pin and retrieve public |
| 1594 | * keys (if keyp is provided) |
| 1595 | */ |
| 1596 | if ((ret = pkcs11_open_session(p, i, pin, user)) != 0 || |
Although the value stored to 'ret' is used in the enclosing expression, the value is never actually read from 'ret' | |
| 1597 | keyp == NULL((void*)0)) |
| 1598 | continue; |
| 1599 | pkcs11_fetch_keys(p, i, keyp, labelsp, &nkeys); |
| 1600 | pkcs11_fetch_certs(p, i, keyp, labelsp, &nkeys); |
| 1601 | if (nkeys == 0 && !p->slotinfo[i].logged_in && |
| 1602 | pkcs11_interactive) { |
| 1603 | /* |
| 1604 | * Some tokens require login before they will |
| 1605 | * expose keys. |
| 1606 | */ |
| 1607 | if (pkcs11_login_slot(p, &p->slotinfo[i], |
| 1608 | CKU_USER(1)) < 0) { |
| 1609 | error("login failed")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1609, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "login failed" ); |
| 1610 | continue; |
| 1611 | } |
| 1612 | pkcs11_fetch_keys(p, i, keyp, labelsp, &nkeys); |
| 1613 | pkcs11_fetch_certs(p, i, keyp, labelsp, &nkeys); |
| 1614 | } |
| 1615 | } |
| 1616 | |
| 1617 | /* now owned by caller */ |
| 1618 | *providerp = p; |
| 1619 | |
| 1620 | TAILQ_INSERT_TAIL(&pkcs11_providers, p, next)do { (p)->next.tqe_next = ((void*)0); (p)->next.tqe_prev = (&pkcs11_providers)->tqh_last; *(&pkcs11_providers )->tqh_last = (p); (&pkcs11_providers)->tqh_last = & (p)->next.tqe_next; } while (0); |
| 1621 | p->refcount++; /* add to provider list */ |
| 1622 | |
| 1623 | return (nkeys); |
| 1624 | fail: |
| 1625 | if (need_finalize && (rv = f->C_Finalize(NULL((void*)0))) != CKR_OK(0)) |
| 1626 | error("C_Finalize for provider %s failed: %lu",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1627, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_Finalize for provider %s failed: %lu" , provider_id, rv) |
| 1627 | provider_id, rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1627, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "C_Finalize for provider %s failed: %lu" , provider_id, rv); |
| 1628 | if (p) { |
| 1629 | free(p->name); |
| 1630 | free(p->slotlist); |
| 1631 | free(p->slotinfo); |
| 1632 | free(p); |
| 1633 | } |
| 1634 | if (handle) |
| 1635 | dlclose(handle); |
| 1636 | if (ret > 0) |
| 1637 | ret = -1; |
| 1638 | return (ret); |
| 1639 | } |
| 1640 | |
| 1641 | /* |
| 1642 | * register a new provider and get number of keys hold by the token, |
| 1643 | * fails if provider already exists |
| 1644 | */ |
| 1645 | int |
| 1646 | pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp, |
| 1647 | char ***labelsp) |
| 1648 | { |
| 1649 | struct pkcs11_provider *p = NULL((void*)0); |
| 1650 | int nkeys; |
| 1651 | |
| 1652 | nkeys = pkcs11_register_provider(provider_id, pin, keyp, labelsp, |
| 1653 | &p, CKU_USER(1)); |
| 1654 | |
| 1655 | /* no keys found or some other error, de-register provider */ |
| 1656 | if (nkeys <= 0 && p != NULL((void*)0)) { |
| 1657 | TAILQ_REMOVE(&pkcs11_providers, p, next)do { if (((p)->next.tqe_next) != ((void*)0)) (p)->next. tqe_next->next.tqe_prev = (p)->next.tqe_prev; else (& pkcs11_providers)->tqh_last = (p)->next.tqe_prev; *(p)-> next.tqe_prev = (p)->next.tqe_next; ; ; } while (0); |
| 1658 | pkcs11_provider_finalize(p); |
| 1659 | pkcs11_provider_unref(p); |
| 1660 | } |
| 1661 | if (nkeys == 0) |
| 1662 | debug_f("provider %s returned no keys", provider_id)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1662, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider %s returned no keys" , provider_id); |
| 1663 | |
| 1664 | return (nkeys); |
| 1665 | } |
| 1666 | |
| 1667 | #ifdef WITH_PKCS11_KEYGEN |
| 1668 | struct sshkey * |
| 1669 | pkcs11_gakp(char *provider_id, char *pin, unsigned int slotidx, char *label, |
| 1670 | unsigned int type, unsigned int bits, unsigned char keyid, u_int32_t *err) |
| 1671 | { |
| 1672 | struct pkcs11_provider *p = NULL((void*)0); |
| 1673 | struct pkcs11_slotinfo *si; |
| 1674 | CK_FUNCTION_LIST *f; |
| 1675 | CK_SESSION_HANDLE session; |
| 1676 | struct sshkey *k = NULL((void*)0); |
| 1677 | int ret = -1, reset_pin = 0, reset_provider = 0; |
| 1678 | CK_RV rv; |
| 1679 | |
| 1680 | *err = 0; |
| 1681 | |
| 1682 | if ((p = pkcs11_provider_lookup(provider_id)) != NULL((void*)0)) |
| 1683 | debug_f("provider \"%s\" available", provider_id)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1683, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "provider \"%s\" available" , provider_id); |
| 1684 | else if ((ret = pkcs11_register_provider(provider_id, pin, NULL((void*)0), NULL((void*)0), |
| 1685 | &p, CKU_SO(0))) < 0) { |
| 1686 | debug_f("could not register provider %s", provider_id)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1686, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not register provider %s" , provider_id); |
| 1687 | goto out; |
| 1688 | } else |
| 1689 | reset_provider = 1; |
| 1690 | |
| 1691 | f = p->function_list; |
| 1692 | si = &p->slotinfo[slotidx]; |
| 1693 | session = si->session; |
| 1694 | |
| 1695 | if ((rv = f->C_SetOperationState(session , pin, strlen(pin), |
| 1696 | CK_INVALID_HANDLE(0), CK_INVALID_HANDLE(0))) != CKR_OK(0)) { |
| 1697 | debug_f("could not supply SO pin: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1697, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not supply SO pin: %lu" , rv); |
| 1698 | reset_pin = 0; |
| 1699 | } else |
| 1700 | reset_pin = 1; |
| 1701 | |
| 1702 | switch (type) { |
| 1703 | case KEY_RSA: |
| 1704 | if ((k = pkcs11_rsa_generate_private_key(p, slotidx, label, |
| 1705 | bits, keyid, err)) == NULL((void*)0)) { |
| 1706 | debug_f("failed to generate RSA key")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1706, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "failed to generate RSA key" ); |
| 1707 | goto out; |
| 1708 | } |
| 1709 | break; |
| 1710 | case KEY_ECDSA: |
| 1711 | if ((k = pkcs11_ecdsa_generate_private_key(p, slotidx, label, |
| 1712 | bits, keyid, err)) == NULL((void*)0)) { |
| 1713 | debug_f("failed to generate ECDSA key")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1713, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "failed to generate ECDSA key" ); |
| 1714 | goto out; |
| 1715 | } |
| 1716 | break; |
| 1717 | default: |
| 1718 | *err = SSH_PKCS11_ERR_GENERIC1; |
| 1719 | debug_f("unknown type %d", type)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1719, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "unknown type %d" , type); |
| 1720 | goto out; |
| 1721 | } |
| 1722 | |
| 1723 | out: |
| 1724 | if (reset_pin) |
| 1725 | f->C_SetOperationState(session , NULL((void*)0), 0, CK_INVALID_HANDLE(0), |
| 1726 | CK_INVALID_HANDLE(0)); |
| 1727 | |
| 1728 | if (reset_provider) |
| 1729 | pkcs11_del_provider(provider_id); |
| 1730 | |
| 1731 | return (k); |
| 1732 | } |
| 1733 | |
| 1734 | struct sshkey * |
| 1735 | pkcs11_destroy_keypair(char *provider_id, char *pin, unsigned long slotidx, |
| 1736 | unsigned char keyid, u_int32_t *err) |
| 1737 | { |
| 1738 | struct pkcs11_provider *p = NULL((void*)0); |
| 1739 | struct pkcs11_slotinfo *si; |
| 1740 | struct sshkey *k = NULL((void*)0); |
| 1741 | int reset_pin = 0, reset_provider = 0; |
| 1742 | CK_ULONG nattrs; |
| 1743 | CK_FUNCTION_LIST *f; |
| 1744 | CK_SESSION_HANDLE session; |
| 1745 | CK_ATTRIBUTE attrs[16]; |
| 1746 | CK_OBJECT_CLASS key_class; |
| 1747 | CK_KEY_TYPE key_type; |
| 1748 | CK_OBJECT_HANDLE obj = CK_INVALID_HANDLE(0); |
| 1749 | CK_RV rv; |
| 1750 | |
| 1751 | *err = 0; |
| 1752 | |
| 1753 | if ((p = pkcs11_provider_lookup(provider_id)) != NULL((void*)0)) { |
| 1754 | debug_f("using provider \"%s\"", provider_id)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1754, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "using provider \"%s\"" , provider_id); |
| 1755 | } else if (pkcs11_register_provider(provider_id, pin, NULL((void*)0), NULL((void*)0), &p, |
| 1756 | CKU_SO(0)) < 0) { |
| 1757 | debug_f("could not register provider %s",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1758, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not register provider %s" , provider_id) |
| 1758 | provider_id)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1758, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not register provider %s" , provider_id); |
| 1759 | goto out; |
| 1760 | } else |
| 1761 | reset_provider = 1; |
| 1762 | |
| 1763 | f = p->function_list; |
| 1764 | si = &p->slotinfo[slotidx]; |
| 1765 | session = si->session; |
| 1766 | |
| 1767 | if ((rv = f->C_SetOperationState(session , pin, strlen(pin), |
| 1768 | CK_INVALID_HANDLE(0), CK_INVALID_HANDLE(0))) != CKR_OK(0)) { |
| 1769 | debug_f("could not supply SO pin: %lu", rv)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1769, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not supply SO pin: %lu" , rv); |
| 1770 | reset_pin = 0; |
| 1771 | } else |
| 1772 | reset_pin = 1; |
| 1773 | |
| 1774 | /* private key */ |
| 1775 | nattrs = 0; |
| 1776 | key_class = CKO_PRIVATE_KEY(3); |
| 1777 | FILL_ATTR(attrs, nattrs, CKA_CLASS(0), &key_class, sizeof(key_class)); |
| 1778 | FILL_ATTR(attrs, nattrs, CKA_ID(0x102), &keyid, sizeof(keyid)); |
| 1779 | |
| 1780 | if (pkcs11_find(p, slotidx, attrs, nattrs, &obj) == 0 && |
| 1781 | obj != CK_INVALID_HANDLE(0)) { |
| 1782 | if ((rv = f->C_DestroyObject(session, obj)) != CKR_OK(0)) { |
| 1783 | debug_f("could not destroy private key 0x%hhx",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1784, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not destroy private key 0x%hhx" , keyid) |
| 1784 | keyid)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1784, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not destroy private key 0x%hhx" , keyid); |
| 1785 | *err = rv; |
| 1786 | goto out; |
| 1787 | } |
| 1788 | } |
| 1789 | |
| 1790 | /* public key */ |
| 1791 | nattrs = 0; |
| 1792 | key_class = CKO_PUBLIC_KEY(2); |
| 1793 | FILL_ATTR(attrs, nattrs, CKA_CLASS(0), &key_class, sizeof(key_class)); |
| 1794 | FILL_ATTR(attrs, nattrs, CKA_ID(0x102), &keyid, sizeof(keyid)); |
| 1795 | |
| 1796 | if (pkcs11_find(p, slotidx, attrs, nattrs, &obj) == 0 && |
| 1797 | obj != CK_INVALID_HANDLE(0)) { |
| 1798 | |
| 1799 | /* get key type */ |
| 1800 | nattrs = 0; |
| 1801 | FILL_ATTR(attrs, nattrs, CKA_KEY_TYPE(0x100), &key_type, |
| 1802 | sizeof(key_type)); |
| 1803 | rv = f->C_GetAttributeValue(session, obj, attrs, nattrs); |
| 1804 | if (rv != CKR_OK(0)) { |
| 1805 | debug_f("could not get key type of public key 0x%hhx",sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1806, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not get key type of public key 0x%hhx" , keyid) |
| 1806 | keyid)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1806, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not get key type of public key 0x%hhx" , keyid); |
| 1807 | *err = rv; |
| 1808 | key_type = -1; |
| 1809 | } |
| 1810 | if (key_type == CKK_RSA(0)) |
| 1811 | k = pkcs11_fetch_rsa_pubkey(p, slotidx, &obj); |
| 1812 | else if (key_type == CKK_ECDSA(3)) |
| 1813 | k = pkcs11_fetch_ecdsa_pubkey(p, slotidx, &obj); |
| 1814 | |
| 1815 | if ((rv = f->C_DestroyObject(session, obj)) != CKR_OK(0)) { |
| 1816 | debug_f("could not destroy public key 0x%hhx", keyid)sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1816, 1, SYSLOG_LEVEL_DEBUG1, ((void*)0), "could not destroy public key 0x%hhx" , keyid); |
| 1817 | *err = rv; |
| 1818 | goto out; |
| 1819 | } |
| 1820 | } |
| 1821 | |
| 1822 | out: |
| 1823 | if (reset_pin) |
| 1824 | f->C_SetOperationState(session , NULL((void*)0), 0, CK_INVALID_HANDLE(0), |
| 1825 | CK_INVALID_HANDLE(0)); |
| 1826 | |
| 1827 | if (reset_provider) |
| 1828 | pkcs11_del_provider(provider_id); |
| 1829 | |
| 1830 | return (k); |
| 1831 | } |
| 1832 | #endif /* WITH_PKCS11_KEYGEN */ |
| 1833 | #else |
| 1834 | int |
| 1835 | pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp, |
| 1836 | char ***labelsp) |
| 1837 | { |
| 1838 | error("dlopen() not supported")sshlog("/usr/src/usr.bin/ssh/ssh-pkcs11-helper/../ssh-pkcs11.c" , __func__, 1838, 0, SYSLOG_LEVEL_ERROR, ((void*)0), "dlopen() not supported" ); |
| 1839 | return (-1); |
| 1840 | } |
| 1841 | #endif /* HAVE_DLOPEN */ |