2 * Author: Tatu Ylonen <ylo@cs.hut.fi>
3 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5 * Adds an identity to the authentication server, or removes an identity.
7 * As far as I am concerned, the code I have written for this software
8 * can be used freely for any purpose. Any derived versions of this
9 * software must be clearly marked as such, and if the derived work is
10 * incompatible with the protocol description in the RFC file, it must be
11 * called by a name other than "ssh" or "Secure Shell".
13 * SSH2 implementation,
14 * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution.
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
26 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
30 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 RCSID("$OpenBSD: ssh-add.c,v 1.45 2001/08/03 10:31:30 jakob Exp $");
40 #include <openssl/evp.h>
49 #include "pathnames.h"
52 #ifdef HAVE___PROGNAME
53 extern char *__progname;
59 extern char *__progname;
61 /* we keep a cache of one passphrases */
62 static char *pass = NULL;
67 memset(pass, 0, strlen(pass));
74 delete_file(AuthenticationConnection *ac, const char *filename)
79 public = key_load_public(filename, &comment);
81 printf("Bad key file %s\n", filename);
84 if (ssh_remove_identity(ac, public))
85 fprintf(stderr, "Identity removed: %s (%s)\n", filename, comment);
87 fprintf(stderr, "Could not remove identity: %s\n", filename);
92 /* Send a request to remove all identities. */
94 delete_all(AuthenticationConnection *ac)
98 if (!ssh_remove_all_identities(ac, 1))
100 /* ignore error-code for ssh2 */
101 ssh_remove_all_identities(ac, 2);
104 fprintf(stderr, "All identities removed.\n");
106 fprintf(stderr, "Failed to remove all identities.\n");
110 add_file(AuthenticationConnection *ac, const char *filename)
114 char *comment = NULL;
117 if (stat(filename, &st) < 0) {
121 /* At first, try empty passphrase */
122 private = key_load_private(filename, "", &comment);
124 comment = xstrdup(filename);
126 if (private == NULL && pass != NULL)
127 private = key_load_private(filename, pass, NULL);
128 if (private == NULL) {
129 /* clear passphrase since it did not work */
131 snprintf(msg, sizeof msg, "Enter passphrase for %.200s: ",
134 pass = read_passphrase(msg, RP_ALLOW_STDIN);
135 if (strcmp(pass, "") == 0) {
140 private = key_load_private(filename, pass, &comment);
144 strlcpy(msg, "Bad passphrase, try again: ", sizeof msg);
147 if (ssh_add_identity(ac, private, comment))
148 fprintf(stderr, "Identity added: %s (%s)\n", filename, comment);
150 fprintf(stderr, "Could not add identity: %s\n", filename);
156 update_card(AuthenticationConnection *ac, int add, const char *id)
158 if (ssh_update_card(ac, add, id))
159 fprintf(stderr, "Card %s: %s\n",
160 add ? "added" : "removed", id);
162 fprintf(stderr, "Could not %s card: %s\n",
163 add ? "add" : "remove", id);
167 list_identities(AuthenticationConnection *ac, int do_fp)
171 int had_identities = 0;
174 for (version = 1; version <= 2; version++) {
175 for (key = ssh_get_first_identity(ac, &comment, version);
177 key = ssh_get_next_identity(ac, &comment, version)) {
180 fp = key_fingerprint(key, SSH_FP_MD5,
182 printf("%d %s %s (%s)\n",
183 key_size(key), fp, comment, key_type(key));
186 if (!key_write(key, stdout))
187 fprintf(stderr, "key_write failed");
188 fprintf(stdout, " %s\n", comment);
195 printf("The agent has no identities.\n");
201 fprintf(stderr, "Usage: %s [options]\n", __progname);
202 fprintf(stderr, "Options:\n");
203 fprintf(stderr, " -l List fingerprints of all identities.\n");
204 fprintf(stderr, " -L List public key parameters of all identities.\n");
205 fprintf(stderr, " -d Delete identity.\n");
206 fprintf(stderr, " -D Delete all identities.\n");
208 fprintf(stderr, " -s reader Add key in smartcard reader.\n");
209 fprintf(stderr, " -e reader Remove key in smartcard reader.\n");
214 main(int argc, char **argv)
218 AuthenticationConnection *ac = NULL;
221 char *sc_reader_id = NULL;
222 int i, ch, deleting = 0;
224 __progname = get_progname(argv[0]);
228 SSLeay_add_all_algorithms();
230 /* At first, get a connection to the authentication agent. */
231 ac = ssh_get_authentication_connection();
233 fprintf(stderr, "Could not open a connection to your authentication agent.\n");
236 while ((ch = getopt(argc, argv, "lLdDe:s:")) != -1) {
240 list_identities(ac, ch == 'l' ? 1 : 0);
251 sc_reader_id = optarg;
255 sc_reader_id = optarg;
265 if (sc_reader_id != NULL) {
266 update_card(ac, !deleting, sc_reader_id);
270 pw = getpwuid(getuid());
272 fprintf(stderr, "No user found with uid %u\n",
274 ssh_close_authentication_connection(ac);
277 snprintf(buf, sizeof buf, "%s/%s", pw->pw_dir, _PATH_SSH_CLIENT_IDENTITY);
279 delete_file(ac, buf);
283 for (i = 0; i < argc; i++) {
285 delete_file(ac, argv[i]);
287 add_file(ac, argv[i]);
293 ssh_close_authentication_connection(ac);