Annotation of src/usr.bin/ssh/ssh-add.c, Revision 1.136
1.136 ! djm 1: /* $OpenBSD: ssh-add.c,v 1.135 2018/02/23 15:58:37 markus Exp $ */
1.1 deraadt 2: /*
1.13 deraadt 3: * Author: Tatu Ylonen <ylo@cs.hut.fi>
4: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5: * All rights reserved
6: * Adds an identity to the authentication server, or removes an identity.
1.19 markus 7: *
1.22 deraadt 8: * As far as I am concerned, the code I have written for this software
9: * can be used freely for any purpose. Any derived versions of this
10: * software must be clearly marked as such, and if the derived work is
11: * incompatible with the protocol description in the RFC file, it must be
12: * called by a name other than "ssh" or "Secure Shell".
13: *
1.19 markus 14: * SSH2 implementation,
1.41 markus 15: * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
1.22 deraadt 16: *
17: * Redistribution and use in source and binary forms, with or without
18: * modification, are permitted provided that the following conditions
19: * are met:
20: * 1. Redistributions of source code must retain the above copyright
21: * notice, this list of conditions and the following disclaimer.
22: * 2. Redistributions in binary form must reproduce the above copyright
23: * notice, this list of conditions and the following disclaimer in the
24: * documentation and/or other materials provided with the distribution.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
27: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
28: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
29: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
30: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
31: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
35: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.13 deraadt 36: */
1.1 deraadt 37:
1.75 stevesk 38: #include <sys/types.h>
39: #include <sys/stat.h>
1.16 markus 40:
1.19 markus 41: #include <openssl/evp.h>
1.81 stevesk 42:
1.116 djm 43: #include <errno.h>
1.82 stevesk 44: #include <fcntl.h>
1.81 stevesk 45: #include <pwd.h>
1.88 stevesk 46: #include <stdio.h>
1.87 stevesk 47: #include <stdlib.h>
1.85 stevesk 48: #include <string.h>
1.84 stevesk 49: #include <unistd.h>
1.117 deraadt 50: #include <limits.h>
1.1 deraadt 51:
1.89 deraadt 52: #include "xmalloc.h"
1.27 markus 53: #include "ssh.h"
54: #include "log.h"
1.116 djm 55: #include "sshkey.h"
56: #include "sshbuf.h"
1.18 markus 57: #include "authfd.h"
1.16 markus 58: #include "authfile.h"
1.25 markus 59: #include "pathnames.h"
1.57 stevesk 60: #include "misc.h"
1.110 djm 61: #include "ssherr.h"
1.115 djm 62: #include "digest.h"
1.1 deraadt 63:
1.45 jakob 64: /* argv0 */
65: extern char *__progname;
66:
1.48 djm 67: /* Default files to add */
68: static char *default_files[] = {
69: _PATH_SSH_CLIENT_ID_RSA,
70: _PATH_SSH_CLIENT_ID_DSA,
1.99 djm 71: _PATH_SSH_CLIENT_ID_ECDSA,
1.107 pascal 72: _PATH_SSH_CLIENT_ID_ED25519,
1.135 markus 73: _PATH_SSH_CLIENT_ID_XMSS,
1.48 djm 74: NULL
75: };
76:
1.115 djm 77: static int fingerprint_hash = SSH_FP_HASH_DEFAULT;
78:
1.56 markus 79: /* Default lifetime (0 == forever) */
1.57 stevesk 80: static int lifetime = 0;
1.48 djm 81:
1.65 markus 82: /* User has to confirm key use */
83: static int confirm = 0;
84:
1.135 markus 85: /* Maximum number of signatures (XMSS) */
86: static u_int maxsign = 0;
87: static u_int minleft = 0;
88:
1.124 tim 89: /* we keep a cache of one passphrase */
1.33 markus 90: static char *pass = NULL;
1.39 itojun 91: static void
1.33 markus 92: clear_pass(void)
93: {
94: if (pass) {
1.109 djm 95: explicit_bzero(pass, strlen(pass));
1.106 djm 96: free(pass);
1.33 markus 97: pass = NULL;
98: }
99: }
100:
1.46 djm 101: static int
1.134 dlg 102: delete_file(int agent_fd, const char *filename, int key_only, int qflag)
1.1 deraadt 103: {
1.116 djm 104: struct sshkey *public, *cert = NULL;
1.104 djm 105: char *certpath = NULL, *comment = NULL;
1.116 djm 106: int r, ret = -1;
1.1 deraadt 107:
1.116 djm 108: if ((r = sshkey_load_public(filename, &public, &comment)) != 0) {
109: printf("Bad key file %s: %s\n", filename, ssh_err(r));
1.46 djm 110: return -1;
1.12 markus 111: }
1.116 djm 112: if ((r = ssh_remove_identity(agent_fd, public)) == 0) {
1.134 dlg 113: if (!qflag) {
114: fprintf(stderr, "Identity removed: %s (%s)\n",
115: filename, comment);
116: }
1.46 djm 117: ret = 0;
118: } else
1.116 djm 119: fprintf(stderr, "Could not remove identity \"%s\": %s\n",
120: filename, ssh_err(r));
1.46 djm 121:
1.104 djm 122: if (key_only)
123: goto out;
124:
125: /* Now try to delete the corresponding certificate too */
126: free(comment);
1.105 markus 127: comment = NULL;
1.104 djm 128: xasprintf(&certpath, "%s-cert.pub", filename);
1.120 halex 129: if ((r = sshkey_load_public(certpath, &cert, &comment)) != 0) {
130: if (r != SSH_ERR_SYSTEM_ERROR || errno != ENOENT)
131: error("Failed to load certificate \"%s\": %s",
132: certpath, ssh_err(r));
1.104 djm 133: goto out;
1.120 halex 134: }
135:
1.116 djm 136: if (!sshkey_equal_public(cert, public))
1.104 djm 137: fatal("Certificate %s does not match private key %s",
138: certpath, filename);
139:
1.120 halex 140: if ((r = ssh_remove_identity(agent_fd, cert)) == 0) {
1.134 dlg 141: if (!qflag) {
142: fprintf(stderr, "Identity removed: %s (%s)\n",
143: certpath, comment);
144: }
1.104 djm 145: ret = 0;
146: } else
1.120 halex 147: fprintf(stderr, "Could not remove identity \"%s\": %s\n",
148: certpath, ssh_err(r));
1.104 djm 149:
150: out:
1.127 mmcc 151: sshkey_free(cert);
152: sshkey_free(public);
1.104 djm 153: free(certpath);
154: free(comment);
1.47 deraadt 155:
1.46 djm 156: return ret;
1.1 deraadt 157: }
158:
1.19 markus 159: /* Send a request to remove all identities. */
1.46 djm 160: static int
1.136 ! djm 161: delete_all(int agent_fd, int qflag)
1.1 deraadt 162: {
1.46 djm 163: int ret = -1;
1.19 markus 164:
1.130 djm 165: /*
166: * Since the agent might be forwarded, old or non-OpenSSH, when asked
167: * to remove all keys, attempt to remove both protocol v.1 and v.2
168: * keys.
169: */
1.121 markus 170: if (ssh_remove_all_identities(agent_fd, 2) == 0)
1.46 djm 171: ret = 0;
1.121 markus 172: /* ignore error-code for ssh1 */
173: ssh_remove_all_identities(agent_fd, 1);
1.19 markus 174:
1.136 ! djm 175: if (ret != 0)
! 176: fprintf(stderr, "Failed to remove all identities.\n");
! 177: else if (!qflag)
1.12 markus 178: fprintf(stderr, "All identities removed.\n");
1.46 djm 179:
180: return ret;
1.1 deraadt 181: }
182:
1.46 djm 183: static int
1.134 dlg 184: add_file(int agent_fd, const char *filename, int key_only, int qflag)
1.1 deraadt 185: {
1.116 djm 186: struct sshkey *private, *cert;
1.36 markus 187: char *comment = NULL;
1.102 djm 188: char msg[1024], *certpath = NULL;
1.116 djm 189: int r, fd, ret = -1;
1.135 markus 190: size_t i;
191: u_int32_t left;
1.116 djm 192: struct sshbuf *keyblob;
1.135 markus 193: struct ssh_identitylist *idlist;
1.12 markus 194:
1.101 djm 195: if (strcmp(filename, "-") == 0) {
196: fd = STDIN_FILENO;
197: filename = "(stdin)";
198: } else if ((fd = open(filename, O_RDONLY)) < 0) {
1.19 markus 199: perror(filename);
1.46 djm 200: return -1;
1.19 markus 201: }
1.76 dtucker 202:
203: /*
204: * Since we'll try to load a keyfile multiple times, permission errors
205: * will occur multiple times, so check perms first and bail if wrong.
206: */
1.101 djm 207: if (fd != STDIN_FILENO) {
1.116 djm 208: if (sshkey_perm_ok(fd, filename) != 0) {
1.101 djm 209: close(fd);
210: return -1;
211: }
212: }
1.116 djm 213: if ((keyblob = sshbuf_new()) == NULL)
214: fatal("%s: sshbuf_new failed", __func__);
215: if ((r = sshkey_load_file(fd, keyblob)) != 0) {
216: fprintf(stderr, "Error loading key \"%s\": %s\n",
217: filename, ssh_err(r));
218: sshbuf_free(keyblob);
1.101 djm 219: close(fd);
220: return -1;
221: }
1.76 dtucker 222: close(fd);
223:
1.12 markus 224: /* At first, try empty passphrase */
1.125 tim 225: if ((r = sshkey_parse_private_fileblob(keyblob, "", &private,
226: &comment)) != 0 && r != SSH_ERR_KEY_WRONG_PASSPHRASE) {
1.116 djm 227: fprintf(stderr, "Error loading key \"%s\": %s\n",
228: filename, ssh_err(r));
229: goto fail_load;
230: }
1.33 markus 231: /* try last */
1.110 djm 232: if (private == NULL && pass != NULL) {
1.125 tim 233: if ((r = sshkey_parse_private_fileblob(keyblob, pass, &private,
234: &comment)) != 0 && r != SSH_ERR_KEY_WRONG_PASSPHRASE) {
1.116 djm 235: fprintf(stderr, "Error loading key \"%s\": %s\n",
236: filename, ssh_err(r));
237: goto fail_load;
238: }
1.110 djm 239: }
1.31 markus 240: if (private == NULL) {
1.33 markus 241: /* clear passphrase since it did not work */
242: clear_pass();
1.124 tim 243: snprintf(msg, sizeof msg, "Enter passphrase for %s%s: ",
244: filename, confirm ? " (will confirm each use)" : "");
1.12 markus 245: for (;;) {
1.40 markus 246: pass = read_passphrase(msg, RP_ALLOW_STDIN);
1.116 djm 247: if (strcmp(pass, "") == 0)
248: goto fail_load;
249: if ((r = sshkey_parse_private_fileblob(keyblob, pass,
1.125 tim 250: &private, &comment)) == 0)
1.116 djm 251: break;
252: else if (r != SSH_ERR_KEY_WRONG_PASSPHRASE) {
253: fprintf(stderr,
254: "Error loading key \"%s\": %s\n",
255: filename, ssh_err(r));
256: fail_load:
1.35 markus 257: clear_pass();
1.116 djm 258: sshbuf_free(keyblob);
1.46 djm 259: return -1;
1.12 markus 260: }
1.33 markus 261: clear_pass();
1.68 markus 262: snprintf(msg, sizeof msg,
1.124 tim 263: "Bad passphrase, try again for %s%s: ", filename,
1.119 halex 264: confirm ? " (will confirm each use)" : "");
1.12 markus 265: }
266: }
1.124 tim 267: if (comment == NULL || *comment == '\0')
268: comment = xstrdup(filename);
1.116 djm 269: sshbuf_free(keyblob);
1.60 markus 270:
1.135 markus 271: /* For XMSS */
272: if ((r = sshkey_set_filename(private, filename)) != 0) {
273: fprintf(stderr, "Could not add filename to private key: %s (%s)\n",
274: filename, comment);
275: goto out;
276: }
277: if (maxsign && minleft &&
278: (r = ssh_fetch_identitylist(agent_fd, &idlist)) == 0) {
279: for (i = 0; i < idlist->nkeys; i++) {
280: if (!sshkey_equal_public(idlist->keys[i], private))
281: continue;
282: left = sshkey_signatures_left(idlist->keys[i]);
283: if (left < minleft) {
284: fprintf(stderr,
285: "Only %d signatures left.\n", left);
286: break;
287: }
288: fprintf(stderr, "Skipping update: ");
289: if (left == minleft) {
290: fprintf(stderr,
291: "required signatures left (%d).\n", left);
292: } else {
293: fprintf(stderr,
294: "more signatures left (%d) than"
295: " required (%d).\n", left, minleft);
296: }
297: ssh_free_identitylist(idlist);
298: goto out;
299: }
300: ssh_free_identitylist(idlist);
301: }
302:
1.116 djm 303: if ((r = ssh_add_identity_constrained(agent_fd, private, comment,
1.135 markus 304: lifetime, confirm, maxsign)) == 0) {
1.60 markus 305: ret = 0;
1.136 ! djm 306: if (!qflag) {
! 307: fprintf(stderr, "Identity added: %s (%s)\n",
! 308: filename, comment);
! 309: if (lifetime != 0) {
! 310: fprintf(stderr,
! 311: "Lifetime set to %d seconds\n", lifetime);
! 312: }
! 313: if (confirm != 0) {
! 314: fprintf(stderr, "The user must confirm "
! 315: "each use of the key\n");
! 316: }
! 317: }
1.60 markus 318: } else {
1.116 djm 319: fprintf(stderr, "Could not add identity \"%s\": %s\n",
320: filename, ssh_err(r));
1.56 markus 321: }
322:
1.102 djm 323: /* Skip trying to load the cert if requested */
324: if (key_only)
325: goto out;
1.93 djm 326:
327: /* Now try to add the certificate flavour too */
328: xasprintf(&certpath, "%s-cert.pub", filename);
1.116 djm 329: if ((r = sshkey_load_public(certpath, &cert, NULL)) != 0) {
330: if (r != SSH_ERR_SYSTEM_ERROR || errno != ENOENT)
331: error("Failed to load certificate \"%s\": %s",
332: certpath, ssh_err(r));
1.96 djm 333: goto out;
1.116 djm 334: }
1.96 djm 335:
1.116 djm 336: if (!sshkey_equal_public(cert, private)) {
1.96 djm 337: error("Certificate %s does not match private key %s",
338: certpath, filename);
1.116 djm 339: sshkey_free(cert);
1.96 djm 340: goto out;
341: }
1.93 djm 342:
1.96 djm 343: /* Graft with private bits */
1.123 djm 344: if ((r = sshkey_to_certified(private)) != 0) {
1.116 djm 345: error("%s: sshkey_to_certified: %s", __func__, ssh_err(r));
346: sshkey_free(cert);
347: goto out;
348: }
349: if ((r = sshkey_cert_copy(cert, private)) != 0) {
1.132 markus 350: error("%s: sshkey_cert_copy: %s", __func__, ssh_err(r));
1.116 djm 351: sshkey_free(cert);
1.96 djm 352: goto out;
1.94 otto 353: }
1.116 djm 354: sshkey_free(cert);
1.93 djm 355:
1.116 djm 356: if ((r = ssh_add_identity_constrained(agent_fd, private, comment,
1.135 markus 357: lifetime, confirm, maxsign)) != 0) {
1.116 djm 358: error("Certificate %s (%s) add failed: %s", certpath,
359: private->cert->key_id, ssh_err(r));
360: goto out;
1.96 djm 361: }
1.136 ! djm 362: /* success */
! 363: if (!qflag) {
! 364: fprintf(stderr, "Certificate added: %s (%s)\n", certpath,
! 365: private->cert->key_id);
! 366: if (lifetime != 0) {
! 367: fprintf(stderr, "Lifetime set to %d seconds\n",
! 368: lifetime);
! 369: }
! 370: if (confirm != 0) {
! 371: fprintf(stderr, "The user must confirm each use "
! 372: "of the key\n");
! 373: }
! 374: }
! 375:
1.96 djm 376: out:
1.116 djm 377: free(certpath);
1.106 djm 378: free(comment);
1.116 djm 379: sshkey_free(private);
1.47 deraadt 380:
1.46 djm 381: return ret;
1.1 deraadt 382: }
383:
1.46 djm 384: static int
1.136 ! djm 385: update_card(int agent_fd, int add, const char *id, int qflag)
1.42 markus 386: {
1.108 djm 387: char *pin = NULL;
1.116 djm 388: int r, ret = -1;
1.53 rees 389:
1.108 djm 390: if (add) {
391: if ((pin = read_passphrase("Enter passphrase for PKCS#11: ",
392: RP_ALLOW_STDIN)) == NULL)
393: return -1;
394: }
1.53 rees 395:
1.116 djm 396: if ((r = ssh_update_card(agent_fd, add, id, pin == NULL ? "" : pin,
397: lifetime, confirm)) == 0) {
1.66 markus 398: ret = 0;
1.136 ! djm 399: if (!qflag) {
! 400: fprintf(stderr, "Card %s: %s\n",
! 401: add ? "added" : "removed", id);
! 402: }
1.46 djm 403: } else {
1.116 djm 404: fprintf(stderr, "Could not %s card \"%s\": %s\n",
405: add ? "add" : "remove", id, ssh_err(r));
1.66 markus 406: ret = -1;
1.46 djm 407: }
1.106 djm 408: free(pin);
1.66 markus 409: return ret;
1.42 markus 410: }
411:
1.50 markus 412: static int
1.116 djm 413: list_identities(int agent_fd, int do_fp)
1.1 deraadt 414: {
1.116 djm 415: char *fp;
1.131 naddy 416: int r;
1.116 djm 417: struct ssh_identitylist *idlist;
1.135 markus 418: u_int32_t left;
1.116 djm 419: size_t i;
1.12 markus 420:
1.131 naddy 421: if ((r = ssh_fetch_identitylist(agent_fd, &idlist)) != 0) {
422: if (r != SSH_ERR_AGENT_NO_IDENTITIES)
423: fprintf(stderr, "error fetching identities: %s\n",
424: ssh_err(r));
425: else
426: printf("The agent has no identities.\n");
427: return -1;
428: }
429: for (i = 0; i < idlist->nkeys; i++) {
430: if (do_fp) {
431: fp = sshkey_fingerprint(idlist->keys[i],
432: fingerprint_hash, SSH_FP_DEFAULT);
433: printf("%u %s %s (%s)\n", sshkey_size(idlist->keys[i]),
434: fp == NULL ? "(null)" : fp, idlist->comments[i],
435: sshkey_type(idlist->keys[i]));
436: free(fp);
437: } else {
438: if ((r = sshkey_write(idlist->keys[i], stdout)) != 0) {
439: fprintf(stderr, "sshkey_write: %s\n",
440: ssh_err(r));
441: continue;
1.12 markus 442: }
1.135 markus 443: fprintf(stdout, " %s", idlist->comments[i]);
444: left = sshkey_signatures_left(idlist->keys[i]);
445: if (left > 0)
446: fprintf(stdout,
447: " [signatures left %d]", left);
448: fprintf(stdout, "\n");
1.12 markus 449: }
1.50 markus 450: }
1.131 naddy 451: ssh_free_identitylist(idlist);
1.50 markus 452: return 0;
1.1 deraadt 453: }
454:
1.48 djm 455: static int
1.116 djm 456: lock_agent(int agent_fd, int lock)
1.54 markus 457: {
458: char prompt[100], *p1, *p2;
1.116 djm 459: int r, passok = 1, ret = -1;
1.61 deraadt 460:
1.54 markus 461: strlcpy(prompt, "Enter lock password: ", sizeof(prompt));
462: p1 = read_passphrase(prompt, RP_ALLOW_STDIN);
463: if (lock) {
464: strlcpy(prompt, "Again: ", sizeof prompt);
465: p2 = read_passphrase(prompt, RP_ALLOW_STDIN);
466: if (strcmp(p1, p2) != 0) {
467: fprintf(stderr, "Passwords do not match.\n");
468: passok = 0;
469: }
1.109 djm 470: explicit_bzero(p2, strlen(p2));
1.106 djm 471: free(p2);
1.54 markus 472: }
1.116 djm 473: if (passok) {
474: if ((r = ssh_lock_agent(agent_fd, lock, p1)) == 0) {
475: fprintf(stderr, "Agent %slocked.\n", lock ? "" : "un");
476: ret = 0;
477: } else {
478: fprintf(stderr, "Failed to %slock agent: %s\n",
479: lock ? "" : "un", ssh_err(r));
480: }
481: }
1.109 djm 482: explicit_bzero(p1, strlen(p1));
1.106 djm 483: free(p1);
1.62 markus 484: return (ret);
1.54 markus 485: }
486:
487: static int
1.134 dlg 488: do_file(int agent_fd, int deleting, int key_only, char *file, int qflag)
1.48 djm 489: {
490: if (deleting) {
1.134 dlg 491: if (delete_file(agent_fd, file, key_only, qflag) == -1)
1.48 djm 492: return -1;
493: } else {
1.134 dlg 494: if (add_file(agent_fd, file, key_only, qflag) == -1)
1.48 djm 495: return -1;
496: }
497: return 0;
498: }
499:
1.42 markus 500: static void
501: usage(void)
502: {
1.90 sobrado 503: fprintf(stderr, "usage: %s [options] [file ...]\n", __progname);
1.45 jakob 504: fprintf(stderr, "Options:\n");
505: fprintf(stderr, " -l List fingerprints of all identities.\n");
1.115 djm 506: fprintf(stderr, " -E hash Specify hash algorithm used for fingerprints.\n");
1.45 jakob 507: fprintf(stderr, " -L List public key parameters of all identities.\n");
1.103 djm 508: fprintf(stderr, " -k Load only keys and not certificates.\n");
509: fprintf(stderr, " -c Require confirmation to sign using identities\n");
1.135 markus 510: fprintf(stderr, " -m minleft Maxsign is only changed if less than minleft are left (for XMSS)\n");
511: fprintf(stderr, " -M maxsign Maximum number of signatures allowed (for XMSS)\n");
1.103 djm 512: fprintf(stderr, " -t life Set lifetime (in seconds) when adding identities.\n");
1.45 jakob 513: fprintf(stderr, " -d Delete identity.\n");
514: fprintf(stderr, " -D Delete all identities.\n");
1.55 markus 515: fprintf(stderr, " -x Lock agent.\n");
1.63 markus 516: fprintf(stderr, " -X Unlock agent.\n");
1.92 markus 517: fprintf(stderr, " -s pkcs11 Add keys from PKCS#11 provider.\n");
518: fprintf(stderr, " -e pkcs11 Remove keys provided by PKCS#11 provider.\n");
1.134 dlg 519: fprintf(stderr, " -q Be quiet after a successful operation.\n");
1.42 markus 520: }
521:
1.2 provos 522: int
1.7 markus 523: main(int argc, char **argv)
1.1 deraadt 524: {
1.43 markus 525: extern char *optarg;
526: extern int optind;
1.116 djm 527: int agent_fd;
1.92 markus 528: char *pkcs11provider = NULL;
1.116 djm 529: int r, i, ch, deleting = 0, ret = 0, key_only = 0;
1.134 dlg 530: int xflag = 0, lflag = 0, Dflag = 0, qflag = 0;
1.73 djm 531:
1.128 dtucker 532: ssh_malloc_init(); /* must be called before any mallocs */
1.73 djm 533: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
534: sanitise_stdfd();
1.12 markus 535:
1.100 djm 536: OpenSSL_add_all_algorithms();
1.112 djm 537:
1.114 millert 538: setvbuf(stdout, NULL, _IOLBF, 0);
1.19 markus 539:
1.116 djm 540: /* First, get a connection to the authentication agent. */
541: switch (r = ssh_get_authentication_socket(&agent_fd)) {
542: case 0:
543: break;
544: case SSH_ERR_AGENT_NOT_PRESENT:
545: fprintf(stderr, "Could not open a connection to your "
546: "authentication agent.\n");
547: exit(2);
548: default:
549: fprintf(stderr, "Error connecting to agent: %s\n", ssh_err(r));
1.50 markus 550: exit(2);
1.12 markus 551: }
1.116 djm 552:
1.135 markus 553: while ((ch = getopt(argc, argv, "klLcdDxXE:e:M:m:qs:t:")) != -1) {
1.43 markus 554: switch (ch) {
1.115 djm 555: case 'E':
556: fingerprint_hash = ssh_digest_alg_by_name(optarg);
557: if (fingerprint_hash == -1)
558: fatal("Invalid hash algorithm \"%s\"", optarg);
559: break;
1.102 djm 560: case 'k':
561: key_only = 1;
562: break;
1.43 markus 563: case 'l':
564: case 'L':
1.115 djm 565: if (lflag != 0)
566: fatal("-%c flag already specified", lflag);
567: lflag = ch;
568: break;
1.54 markus 569: case 'x':
570: case 'X':
1.115 djm 571: if (xflag != 0)
572: fatal("-%c flag already specified", xflag);
573: xflag = ch;
574: break;
1.65 markus 575: case 'c':
576: confirm = 1;
1.135 markus 577: break;
578: case 'm':
579: minleft = (int)strtonum(optarg, 1, UINT_MAX, NULL);
580: if (minleft == 0) {
581: usage();
582: ret = 1;
583: goto done;
584: }
585: break;
586: case 'M':
587: maxsign = (int)strtonum(optarg, 1, UINT_MAX, NULL);
588: if (maxsign == 0) {
589: usage();
590: ret = 1;
591: goto done;
592: }
1.43 markus 593: break;
594: case 'd':
1.12 markus 595: deleting = 1;
1.43 markus 596: break;
597: case 'D':
1.115 djm 598: Dflag = 1;
599: break;
1.43 markus 600: case 's':
1.92 markus 601: pkcs11provider = optarg;
1.43 markus 602: break;
603: case 'e':
1.47 deraadt 604: deleting = 1;
1.92 markus 605: pkcs11provider = optarg;
1.56 markus 606: break;
607: case 't':
1.57 stevesk 608: if ((lifetime = convtime(optarg)) == -1) {
609: fprintf(stderr, "Invalid lifetime\n");
610: ret = 1;
611: goto done;
612: }
1.43 markus 613: break;
1.134 dlg 614: case 'q':
615: qflag = 1;
616: break;
1.43 markus 617: default:
618: usage();
1.46 djm 619: ret = 1;
620: goto done;
1.42 markus 621: }
622: }
1.115 djm 623:
624: if ((xflag != 0) + (lflag != 0) + (Dflag != 0) > 1)
625: fatal("Invalid combination of actions");
626: else if (xflag) {
1.116 djm 627: if (lock_agent(agent_fd, xflag == 'x' ? 1 : 0) == -1)
1.115 djm 628: ret = 1;
629: goto done;
630: } else if (lflag) {
1.116 djm 631: if (list_identities(agent_fd, lflag == 'l' ? 1 : 0) == -1)
1.115 djm 632: ret = 1;
633: goto done;
634: } else if (Dflag) {
1.136 ! djm 635: if (delete_all(agent_fd, qflag) == -1)
1.115 djm 636: ret = 1;
637: goto done;
638: }
639:
1.43 markus 640: argc -= optind;
641: argv += optind;
1.92 markus 642: if (pkcs11provider != NULL) {
1.136 ! djm 643: if (update_card(agent_fd, !deleting, pkcs11provider,
! 644: qflag) == -1)
1.46 djm 645: ret = 1;
1.43 markus 646: goto done;
1.12 markus 647: }
1.43 markus 648: if (argc == 0) {
1.117 deraadt 649: char buf[PATH_MAX];
1.48 djm 650: struct passwd *pw;
1.52 markus 651: struct stat st;
652: int count = 0;
1.48 djm 653:
654: if ((pw = getpwuid(getuid())) == NULL) {
1.20 deraadt 655: fprintf(stderr, "No user found with uid %u\n",
656: (u_int)getuid());
1.46 djm 657: ret = 1;
658: goto done;
1.12 markus 659: }
1.48 djm 660:
1.71 deraadt 661: for (i = 0; default_files[i]; i++) {
1.51 markus 662: snprintf(buf, sizeof(buf), "%s/%s", pw->pw_dir,
1.48 djm 663: default_files[i]);
1.52 markus 664: if (stat(buf, &st) < 0)
665: continue;
1.134 dlg 666: if (do_file(agent_fd, deleting, key_only, buf,
667: qflag) == -1)
1.46 djm 668: ret = 1;
1.52 markus 669: else
670: count++;
1.46 djm 671: }
1.52 markus 672: if (count == 0)
673: ret = 1;
1.43 markus 674: } else {
1.71 deraadt 675: for (i = 0; i < argc; i++) {
1.116 djm 676: if (do_file(agent_fd, deleting, key_only,
1.134 dlg 677: argv[i], qflag) == -1)
1.48 djm 678: ret = 1;
1.43 markus 679: }
1.12 markus 680: }
1.33 markus 681: clear_pass();
1.43 markus 682:
683: done:
1.116 djm 684: ssh_close_authentication_socket(agent_fd);
1.46 djm 685: return ret;
1.1 deraadt 686: }
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