summaryrefslogtreecommitdiff
path: root/usr/src/cmd/ssh/ssh-add/ssh-add.c
diff options
context:
space:
mode:
Diffstat (limited to 'usr/src/cmd/ssh/ssh-add/ssh-add.c')
-rw-r--r--usr/src/cmd/ssh/ssh-add/ssh-add.c441
1 files changed, 441 insertions, 0 deletions
diff --git a/usr/src/cmd/ssh/ssh-add/ssh-add.c b/usr/src/cmd/ssh/ssh-add/ssh-add.c
new file mode 100644
index 0000000000..d6b9d532ce
--- /dev/null
+++ b/usr/src/cmd/ssh/ssh-add/ssh-add.c
@@ -0,0 +1,441 @@
+/*
+ * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ * All rights reserved
+ * Adds an identity to the authentication server, or removes an identity.
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose. Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ *
+ * SSH2 implementation,
+ * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "includes.h"
+RCSID("$OpenBSD: ssh-add.c,v 1.63 2002/09/19 15:51:23 markus Exp $");
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <openssl/evp.h>
+
+#include "ssh.h"
+#include "rsa.h"
+#include "log.h"
+#include "xmalloc.h"
+#include "key.h"
+#include "authfd.h"
+#include "authfile.h"
+#include "pathnames.h"
+#include "readpass.h"
+#include "misc.h"
+
+#ifdef HAVE___PROGNAME
+extern char *__progname;
+#else
+char *__progname;
+#endif
+
+/* argv0 */
+extern char *__progname;
+
+/* Default files to add */
+static char *default_files[] = {
+ _PATH_SSH_CLIENT_ID_RSA,
+ _PATH_SSH_CLIENT_ID_DSA,
+ _PATH_SSH_CLIENT_IDENTITY,
+ NULL
+};
+
+/* Default lifetime (0 == forever) */
+static int lifetime = 0;
+
+/* we keep a cache of one passphrases */
+static char *pass = NULL;
+static void
+clear_pass(void)
+{
+ if (pass) {
+ memset(pass, 0, strlen(pass));
+ xfree(pass);
+ pass = NULL;
+ }
+}
+
+static int
+delete_file(AuthenticationConnection *ac, const char *filename)
+{
+ Key *public;
+ char *comment = NULL;
+ int ret = -1;
+
+ public = key_load_public(filename, &comment);
+ if (public == NULL) {
+ printf(gettext("Bad key file %s\n"), filename);
+ return -1;
+ }
+ if (ssh_remove_identity(ac, public)) {
+ fprintf(stderr, gettext("Identity removed: %s (%s)\n"),
+ filename, comment);
+ ret = 0;
+ } else
+ fprintf(stderr, gettext("Could not remove identity: %s\n"),
+ filename);
+
+ key_free(public);
+ xfree(comment);
+
+ return ret;
+}
+
+/* Send a request to remove all identities. */
+static int
+delete_all(AuthenticationConnection *ac)
+{
+ int ret = -1;
+
+ if (ssh_remove_all_identities(ac, 1))
+ ret = 0;
+ /* ignore error-code for ssh2 */
+ ssh_remove_all_identities(ac, 2);
+
+ if (ret == 0)
+ fprintf(stderr, gettext("All identities removed.\n"));
+ else
+ fprintf(stderr, gettext("Failed to remove all identities.\n"));
+
+ return ret;
+}
+
+static int
+add_file(AuthenticationConnection *ac, const char *filename)
+{
+ struct stat st;
+ Key *private;
+ char *comment = NULL;
+ char msg[1024];
+ int ret = -1;
+
+ if (stat(filename, &st) < 0) {
+ perror(filename);
+ return -1;
+ }
+ /* At first, try empty passphrase */
+ private = key_load_private(filename, "", &comment);
+ if (comment == NULL)
+ comment = xstrdup(filename);
+ /* try last */
+ if (private == NULL && pass != NULL)
+ private = key_load_private(filename, pass, NULL);
+ if (private == NULL) {
+ /* clear passphrase since it did not work */
+ clear_pass();
+ snprintf(msg, sizeof msg,
+ gettext("Enter passphrase for %.200s: "), comment);
+ for (;;) {
+ pass = read_passphrase(msg, RP_ALLOW_STDIN);
+ if (strcmp(pass, "") == 0) {
+ clear_pass();
+ xfree(comment);
+ return -1;
+ }
+ private = key_load_private(filename, pass, &comment);
+ if (private != NULL)
+ break;
+ clear_pass();
+ strlcpy(msg, gettext("Bad passphrase, try again: "),
+ sizeof msg);
+ }
+ }
+
+ if (ssh_add_identity_constrained(ac, private, comment, lifetime)) {
+ fprintf(stderr, gettext("Identity added: %s (%s)\n"),
+ filename, comment);
+ ret = 0;
+ if (lifetime != 0)
+ fprintf(stderr,
+ gettext("Lifetime set to %d seconds\n"), lifetime);
+ } else if (ssh_add_identity(ac, private, comment)) {
+ fprintf(stderr, gettext("Identity added: %s (%s)\n"),
+ filename, comment);
+ ret = 0;
+ } else {
+ fprintf(stderr, gettext("Could not add identity: %s\n"),
+ filename);
+ }
+
+ xfree(comment);
+ key_free(private);
+
+ return ret;
+}
+
+#ifdef SMARTCARD
+static int
+update_card(AuthenticationConnection *ac, int add, const char *id)
+{
+ char *pin;
+
+ pin = read_passphrase("Enter passphrase for smartcard: ", RP_ALLOW_STDIN);
+ if (pin == NULL)
+ return -1;
+
+ if (ssh_update_card(ac, add, id, pin)) {
+ fprintf(stderr, "Card %s: %s\n",
+ add ? "added" : "removed", id);
+ return 0;
+ } else {
+ fprintf(stderr, "Could not %s card: %s\n",
+ add ? "add" : "remove", id);
+ return -1;
+ }
+}
+#endif /* SMARTCARD */
+
+static int
+list_identities(AuthenticationConnection *ac, int do_fp)
+{
+ Key *key;
+ char *comment, *fp;
+ int had_identities = 0;
+ int version;
+
+ for (version = 1; version <= 2; version++) {
+ for (key = ssh_get_first_identity(ac, &comment, version);
+ key != NULL;
+ key = ssh_get_next_identity(ac, &comment, version)) {
+ had_identities = 1;
+ if (do_fp) {
+ fp = key_fingerprint(key, SSH_FP_MD5,
+ SSH_FP_HEX);
+ printf("%d %s %s (%s)\n",
+ key_size(key), fp, comment, key_type(key));
+ xfree(fp);
+ } else {
+ if (!key_write(key, stdout))
+ fprintf(stderr,
+ gettext("key_write failed"));
+ fprintf(stdout, " %s\n", comment);
+ }
+ key_free(key);
+ xfree(comment);
+ }
+ }
+ if (!had_identities) {
+ printf(gettext("The agent has no identities.\n"));
+ return -1;
+ }
+ return 0;
+}
+
+static int
+lock_agent(AuthenticationConnection *ac, int lock)
+{
+ char prompt[100], *p1, *p2;
+ int passok = 1, ret = -1;
+
+ strlcpy(prompt, "Enter lock password: ", sizeof(prompt));
+ p1 = read_passphrase(prompt, RP_ALLOW_STDIN);
+ if (lock) {
+ strlcpy(prompt, "Again: ", sizeof prompt);
+ p2 = read_passphrase(prompt, RP_ALLOW_STDIN);
+ if (strcmp(p1, p2) != 0) {
+ fprintf(stderr, gettext("Passwords do not match.\n"));
+ passok = 0;
+ }
+ memset(p2, 0, strlen(p2));
+ xfree(p2);
+ }
+ if (passok && ssh_lock_agent(ac, lock, p1)) {
+ if (lock)
+ fprintf(stderr, gettext("Agent locked.\n"));
+ else
+ fprintf(stderr, gettext("Agent unlocked.\n"));
+ ret = 0;
+ } else {
+ if (lock)
+ fprintf(stderr, gettext("Failed to lock agent.\n"));
+ else
+ fprintf(stderr, gettext("Failed to unlock agent.\n"));
+ }
+ memset(p1, 0, strlen(p1));
+ xfree(p1);
+ return (ret);
+}
+
+static int
+do_file(AuthenticationConnection *ac, int deleting, char *file)
+{
+ if (deleting) {
+ if (delete_file(ac, file) == -1)
+ return -1;
+ } else {
+ if (add_file(ac, file) == -1)
+ return -1;
+ }
+ return 0;
+}
+
+static void
+usage(void)
+{
+ fprintf(stderr,
+ gettext( "Usage: %s [options]\n"
+ "Options:\n"
+ " -l List fingerprints of all identities.\n"
+ " -L List public key parameters of all identities.\n"
+ " -d Delete identity.\n"
+ " -D Delete all identities.\n"
+ " -x Lock agent.\n"
+ " -X Unlock agent.\n"
+ " -t life Set lifetime (seconds) when adding identities.\n"
+#ifdef SMARTCARD
+ " -s reader Add key in smartcard reader.\n"
+ " -e reader Remove key in smartcard reader.\n"
+#endif /* SMARTCARD */
+ ), __progname);
+}
+
+int
+main(int argc, char **argv)
+{
+ extern char *optarg;
+ extern int optind;
+ AuthenticationConnection *ac = NULL;
+#ifdef SMARTCARD
+ char *sc_reader_id = NULL;
+#endif /* SMARTCARD */
+ int i, ch, deleting = 0, ret = 0;
+
+ __progname = get_progname(argv[0]);
+
+ (void) g11n_setlocale(LC_ALL, "");
+
+ init_rng();
+ seed_rng();
+
+ SSLeay_add_all_algorithms();
+
+ /* At first, get a connection to the authentication agent. */
+ ac = ssh_get_authentication_connection();
+ if (ac == NULL) {
+ fprintf(stderr, gettext("Could not open a connection "
+ "to your authentication agent.\n"));
+ exit(2);
+ }
+ while ((ch = getopt(argc, argv, "lLdDxXe:s:t:")) != -1) {
+ switch (ch) {
+ case 'l':
+ case 'L':
+ if (list_identities(ac, ch == 'l' ? 1 : 0) == -1)
+ ret = 1;
+ goto done;
+ break;
+ case 'x':
+ case 'X':
+ if (lock_agent(ac, ch == 'x' ? 1 : 0) == -1)
+ ret = 1;
+ goto done;
+ break;
+ case 'd':
+ deleting = 1;
+ break;
+ case 'D':
+ if (delete_all(ac) == -1)
+ ret = 1;
+ goto done;
+ break;
+#ifdef SMARTCARD
+ case 's':
+ sc_reader_id = optarg;
+ break;
+ case 'e':
+ deleting = 1;
+ sc_reader_id = optarg;
+ break;
+#endif /* SMARTCARD */
+ case 't':
+ if ((lifetime = convtime(optarg)) == -1) {
+ fprintf(stderr, gettext("Invalid lifetime\n"));
+ ret = 1;
+ goto done;
+ }
+ break;
+ default:
+ usage();
+ ret = 1;
+ goto done;
+ }
+ }
+ argc -= optind;
+ argv += optind;
+#ifdef SMARTCARD
+ if (sc_reader_id != NULL) {
+ if (update_card(ac, !deleting, sc_reader_id) == -1)
+ ret = 1;
+ goto done;
+ }
+#endif /* SMARTCARD */
+ if (argc == 0) {
+ char buf[MAXPATHLEN];
+ struct passwd *pw;
+ struct stat st;
+ int count = 0;
+
+ if ((pw = getpwuid(getuid())) == NULL) {
+ fprintf(stderr, gettext("No user found with uid %u\n"),
+ (u_int)getuid());
+ ret = 1;
+ goto done;
+ }
+
+ for(i = 0; default_files[i]; i++) {
+ snprintf(buf, sizeof(buf), "%s/%s", pw->pw_dir,
+ default_files[i]);
+ if (stat(buf, &st) < 0)
+ continue;
+ if (do_file(ac, deleting, buf) == -1)
+ ret = 1;
+ else
+ count++;
+ }
+ if (count == 0)
+ ret = 1;
+ } else {
+ for(i = 0; i < argc; i++) {
+ if (do_file(ac, deleting, argv[i]) == -1)
+ ret = 1;
+ }
+ }
+ clear_pass();
+
+done:
+ ssh_close_authentication_connection(ac);
+ return ret;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-05-16 17:49:34 +0000