xref: /illumos-gate/usr/src/cmd/cmd-crypto/pktool/setpin.c (revision 3b4422300b98a1be9831b52861a41c8db9440a2d)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  * Copyright 2012 Milan Jurik. All rights reserved.
25  */
26 
27 /*
28  * This file implements the setpin operation for this tool.
29  * The basic flow of the process is to load the PKCS#11 module,
30  * finds the soft token, prompt the user for the old PIN (if
31  * any) and the new PIN, change the token's PIN, and clean up.
32  */
33 
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <errno.h>
37 #include <string.h>
38 #include <cryptoutil.h>
39 #include <security/cryptoki.h>
40 #include "common.h"
41 
42 static int
43 setpin_nss(KMF_HANDLE_T handle,
44 	char *token_spec, char *dir, char *prefix)
45 {
46 	int rv = 0;
47 	KMF_CREDENTIAL		oldcred = { NULL, 0 };
48 	KMF_CREDENTIAL		newpincred = { NULL, 0 };
49 	CK_UTF8CHAR_PTR		old_pin = NULL, new_pin = NULL;
50 	CK_ULONG		old_pinlen = 0, new_pinlen = 0;
51 	KMF_ATTRIBUTE		setpinattrs[6];
52 	KMF_KEYSTORE_TYPE	kstype = KMF_KEYSTORE_NSS;
53 	int			numattrs = 0;
54 
55 	rv = configure_nss(handle, dir, prefix);
56 	if (rv != KMF_OK)
57 		return (rv);
58 
59 	kmf_set_attr_at_index(setpinattrs, numattrs, KMF_KEYSTORE_TYPE_ATTR,
60 	    &kstype, sizeof (kstype));
61 	numattrs++;
62 	if (token_spec != NULL) {
63 		kmf_set_attr_at_index(setpinattrs, numattrs,
64 		    KMF_TOKEN_LABEL_ATTR,
65 		    token_spec, strlen(token_spec));
66 		numattrs++;
67 	}
68 
69 	if ((rv = get_pin(gettext("Enter current token passphrase "
70 	    "(<CR> if not set):"), NULL, &old_pin, &old_pinlen)) != CKR_OK) {
71 		cryptoerror(LOG_STDERR,
72 		    gettext("Unable to get token passphrase."));
73 		return (PK_ERR_NSS);
74 	}
75 	/* Get the user's new PIN. */
76 	if ((rv = get_pin(gettext("Create new passphrase:"), gettext(
77 	    "Re-enter new passphrase:"), &new_pin, &new_pinlen)) != CKR_OK) {
78 		if (rv == CKR_PIN_INCORRECT)
79 			cryptoerror(LOG_STDERR, gettext(
80 			    "Passphrases do not match."));
81 		else
82 			cryptoerror(LOG_STDERR, gettext(
83 			    "Unable to get and confirm new passphrase."));
84 		if (old_pin != NULL)
85 			free(old_pin);
86 		return (PK_ERR_NSS);
87 	}
88 
89 	oldcred.cred = (char *)old_pin;
90 	oldcred.credlen = old_pinlen;
91 
92 	kmf_set_attr_at_index(setpinattrs, numattrs, KMF_CREDENTIAL_ATTR,
93 	    &oldcred, sizeof (oldcred));
94 	numattrs++;
95 
96 	newpincred.cred = (char *)new_pin;
97 	newpincred.credlen = new_pinlen;
98 	kmf_set_attr_at_index(setpinattrs, numattrs, KMF_NEWPIN_ATTR,
99 	    &newpincred, sizeof (newpincred));
100 	numattrs++;
101 
102 	rv = kmf_set_token_pin(handle, numattrs, setpinattrs);
103 
104 	if (new_pin)
105 		free(new_pin);
106 	if (old_pin)
107 		free(old_pin);
108 
109 	return (rv);
110 }
111 
112 static int
113 setpin_pkcs11(KMF_HANDLE_T handle, char *token_spec, boolean_t souser)
114 {
115 	CK_SLOT_ID		slot_id;
116 	CK_FLAGS		pin_state;
117 	CK_UTF8CHAR_PTR		old_pin = NULL, new_pin = NULL;
118 	CK_ULONG		old_pinlen = 0, new_pinlen = 0;
119 	CK_RV			rv = CKR_OK;
120 	char			*token_name = NULL;
121 	CK_TOKEN_INFO		token_info;
122 	KMF_CREDENTIAL		newpincred = { NULL, 0 };
123 	KMF_CREDENTIAL		oldcred = { NULL, 0 };
124 	KMF_KEYSTORE_TYPE	kstype = KMF_KEYSTORE_PK11TOKEN;
125 	KMF_ATTRIBUTE		attrlist[6];
126 	CK_USER_TYPE		user = CKU_USER;
127 	int			numattr = 0;
128 
129 	/* If nothing is specified, default is to use softtoken. */
130 	if (token_spec == NULL) {
131 		token_spec = SOFT_TOKEN_LABEL ":" SOFT_MANUFACTURER_ID;
132 		token_name = SOFT_TOKEN_LABEL;
133 	}
134 
135 	rv = kmf_pk11_token_lookup(NULL, token_spec, &slot_id);
136 	if (rv == KMF_OK) {
137 		/* find the pin state for the selected token */
138 		if (C_GetTokenInfo(slot_id, &token_info) != CKR_OK)
139 			return (PK_ERR_PK11);
140 
141 		pin_state = token_info.flags & CKF_USER_PIN_TO_BE_CHANGED;
142 		if (token_name == NULL)
143 			token_name = (char *)token_info.label;
144 	}
145 
146 	/*
147 	 * If the token is the softtoken, check if the token flags show the
148 	 * PIN has not been set yet.  If not then set the old PIN to the
149 	 * default "changeme".  Otherwise, let user type in the correct old
150 	 * PIN to unlock token.
151 	 */
152 	if (pin_state == CKF_USER_PIN_TO_BE_CHANGED &&
153 	    strcmp(token_name, SOFT_TOKEN_LABEL) == 0) {
154 		if ((old_pin = (CK_UTF8CHAR_PTR) strdup(SOFT_DEFAULT_PIN)) ==
155 		    NULL) {
156 			cryptoerror(LOG_STDERR, "%s.", strerror(errno));
157 			final_pk11(0);
158 			return (PK_ERR_PK11);
159 		}
160 		old_pinlen = strlen(SOFT_DEFAULT_PIN);
161 	} else {
162 		if ((rv = get_pin(gettext("Enter token passphrase:"), NULL,
163 		    &old_pin, &old_pinlen)) != CKR_OK) {
164 			cryptoerror(LOG_STDERR,
165 			    gettext("Unable to get token passphrase (%s)."),
166 			    pkcs11_strerror(rv));
167 			final_pk11(0);
168 			return (PK_ERR_PK11);
169 		}
170 	}
171 
172 	/* Get the user's new PIN. */
173 	if ((rv = get_pin(gettext("Create new passphrase:"), gettext(
174 	    "Re-enter new passphrase:"), &new_pin, &new_pinlen)) != CKR_OK) {
175 		if (rv == CKR_PIN_INCORRECT)
176 			cryptoerror(LOG_STDERR, gettext(
177 			    "Passphrases do not match."));
178 		else
179 			cryptoerror(LOG_STDERR, gettext(
180 			    "Unable to get and confirm new passphrase (%s)."),
181 			    pkcs11_strerror(rv));
182 		free(old_pin);
183 		final_pk11(0);
184 		return (PK_ERR_PK11);
185 	}
186 
187 	kmf_set_attr_at_index(attrlist, numattr, KMF_KEYSTORE_TYPE_ATTR,
188 	    &kstype, sizeof (kstype));
189 	numattr++;
190 	if (token_name != NULL) {
191 		kmf_set_attr_at_index(attrlist, numattr, KMF_TOKEN_LABEL_ATTR,
192 		    token_name, strlen(token_name));
193 		numattr++;
194 	}
195 	oldcred.cred = (char *)old_pin;
196 	oldcred.credlen = old_pinlen;
197 	kmf_set_attr_at_index(attrlist, numattr, KMF_CREDENTIAL_ATTR,
198 	    &oldcred, sizeof (oldcred));
199 	numattr++;
200 
201 	kmf_set_attr_at_index(attrlist, numattr, KMF_SLOT_ID_ATTR,
202 	    &slot_id, sizeof (slot_id));
203 	numattr++;
204 
205 	newpincred.cred = (char *)new_pin;
206 	newpincred.credlen = new_pinlen;
207 	kmf_set_attr_at_index(attrlist, numattr, KMF_NEWPIN_ATTR,
208 	    &newpincred, sizeof (newpincred));
209 	numattr++;
210 
211 	if (souser) {
212 		user = CKU_SO;
213 		kmf_set_attr_at_index(attrlist, numattr,
214 		    KMF_PK11_USER_TYPE_ATTR,
215 		    &user, sizeof (user));
216 		numattr++;
217 	}
218 
219 	rv = kmf_set_token_pin(handle, numattr, attrlist);
220 
221 	/* Clean up. */
222 	if (old_pin != NULL)
223 		free(old_pin);
224 	if (new_pin != NULL)
225 		free(new_pin);
226 
227 	return (rv);
228 }
229 
230 /*
231  * Changes the token's PIN.
232  */
233 int
234 pk_setpin(int argc, char *argv[])
235 /* ARGSUSED */
236 {
237 	int		opt;
238 	int		rv;
239 	extern int	optind_av;
240 	extern char	*optarg_av;
241 	char		*token_spec = NULL;
242 	char		*dir = NULL;
243 	char		*prefix = NULL;
244 	char		*utype = NULL;
245 	KMF_HANDLE_T	handle;
246 	KMF_KEYSTORE_TYPE	kstype = KMF_KEYSTORE_PK11TOKEN;
247 	boolean_t	souser = 0;
248 
249 	/* Parse command line options.  Do NOT i18n/l10n. */
250 	while ((opt = getopt_av(argc, argv,
251 		"T:(token)k:(keystore)d:(dir)"
252 		"p:(prefix)u:(usertype)")) != EOF) {
253 		switch (opt) {
254 			case 'k':
255 				kstype = KS2Int(optarg_av);
256 				if (kstype == 0)
257 					return (PK_ERR_USAGE);
258 				break;
259 			case 'T':	/* token specifier */
260 				if (token_spec)
261 					return (PK_ERR_USAGE);
262 				token_spec = optarg_av;
263 				break;
264 			case 'd':
265 				if (dir)
266 					return (PK_ERR_USAGE);
267 				dir = optarg_av;
268 				break;
269 			case 'p':
270 				if (prefix)
271 					return (PK_ERR_USAGE);
272 				prefix = optarg_av;
273 				break;
274 			case 'u':
275 				utype = optarg_av;
276 				break;
277 			default:
278 				return (PK_ERR_USAGE);
279 		}
280 	}
281 
282 
283 	/* No additional args allowed. */
284 	argc -= optind_av;
285 	argv += optind_av;
286 	if (argc != 0)
287 		return (PK_ERR_USAGE);
288 
289 	/* Done parsing command line options. */
290 	if (kstype == KMF_KEYSTORE_PK11TOKEN && EMPTYSTRING(token_spec)) {
291 		token_spec = PK_DEFAULT_PK11TOKEN;
292 	} else if (kstype == KMF_KEYSTORE_NSS && EMPTYSTRING(token_spec)) {
293 		token_spec = DEFAULT_NSS_TOKEN;
294 	}
295 
296 	if ((rv = kmf_initialize(&handle, NULL, NULL)) != KMF_OK)
297 		return (rv);
298 
299 	if (utype != NULL) {
300 		if (strcmp(utype, "so") == 0)
301 			souser = 1;
302 		else if (strcmp(utype, "user") == 0)
303 			souser = 0;
304 		else /* Wrong option string */
305 			return (PK_ERR_USAGE);
306 	}
307 
308 	switch (kstype) {
309 		case KMF_KEYSTORE_PK11TOKEN:
310 			rv = setpin_pkcs11(handle, token_spec, souser);
311 			break;
312 		case KMF_KEYSTORE_NSS:
313 			rv = setpin_nss(handle, token_spec, dir, prefix);
314 			break;
315 		default:
316 			cryptoerror(LOG_STDERR,
317 			    gettext("incorrect keystore."));
318 			return (PK_ERR_USAGE);
319 	}
320 
321 	(void) kmf_finalize(handle);
322 
323 	if (rv == KMF_ERR_AUTH_FAILED) {
324 		cryptoerror(LOG_STDERR,
325 		    gettext("Incorrect passphrase."));
326 		return (PK_ERR_SYSTEM);
327 	} else if (rv != CKR_OK) {
328 		cryptoerror(LOG_STDERR,
329 		    gettext("Unable to change passphrase."));
330 		return (PK_ERR_SYSTEM);
331 	} else {
332 		(void) fprintf(stdout, gettext("Passphrase changed.\n"));
333 	}
334 	return (0);
335 }
336