Annotation of src/usr.bin/ssh/ssh-keygen.c, Revision 1.293
1.293 ! millert 1: /* $OpenBSD: ssh-keygen.c,v 1.292 2016/09/12 03:29:16 dtucker Exp $ */
1.1 deraadt 2: /*
1.13 deraadt 3: * Author: Tatu Ylonen <ylo@cs.hut.fi>
4: * Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5: * All rights reserved
6: * Identity and host key generation and maintenance.
1.31 deraadt 7: *
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".
1.13 deraadt 13: */
1.1 deraadt 14:
1.136 stevesk 15: #include <sys/types.h>
1.174 dtucker 16: #include <sys/socket.h>
1.136 stevesk 17: #include <sys/stat.h>
1.19 markus 18:
19: #include <openssl/evp.h>
20: #include <openssl/pem.h>
1.145 stevesk 21:
1.148 stevesk 22: #include <errno.h>
1.147 stevesk 23: #include <fcntl.h>
1.248 djm 24: #include <netdb.h>
1.145 stevesk 25: #include <pwd.h>
1.153 stevesk 26: #include <stdio.h>
1.152 stevesk 27: #include <stdlib.h>
1.150 stevesk 28: #include <string.h>
1.149 stevesk 29: #include <unistd.h>
1.253 deraadt 30: #include <limits.h>
1.1 deraadt 31:
32: #include "xmalloc.h"
1.252 djm 33: #include "sshkey.h"
1.53 markus 34: #include "rsa.h"
1.19 markus 35: #include "authfile.h"
36: #include "uuencode.h"
1.252 djm 37: #include "sshbuf.h"
1.40 markus 38: #include "pathnames.h"
1.41 markus 39: #include "log.h"
1.114 djm 40: #include "misc.h"
1.119 djm 41: #include "match.h"
42: #include "hostfile.h"
1.146 stevesk 43: #include "dns.h"
1.223 djm 44: #include "ssh.h"
1.179 djm 45: #include "ssh2.h"
1.252 djm 46: #include "ssherr.h"
1.223 djm 47: #include "atomicio.h"
48: #include "krl.h"
1.251 djm 49: #include "digest.h"
1.32 markus 50:
1.177 markus 51: #ifdef ENABLE_PKCS11
52: #include "ssh-pkcs11.h"
1.106 djm 53: #endif
1.66 markus 54:
1.273 djm 55: #ifdef WITH_OPENSSL
56: # define DEFAULT_KEY_TYPE_NAME "rsa"
57: #else
58: # define DEFAULT_KEY_TYPE_NAME "ed25519"
59: #endif
60:
1.130 markus 61: /* Number of bits in the RSA/DSA key. This value can be set on the command line. */
62: #define DEFAULT_BITS 2048
63: #define DEFAULT_BITS_DSA 1024
1.203 naddy 64: #define DEFAULT_BITS_ECDSA 256
1.130 markus 65: u_int32_t bits = 0;
1.1 deraadt 66:
1.14 markus 67: /*
68: * Flag indicating that we just want to change the passphrase. This can be
69: * set on the command line.
70: */
1.1 deraadt 71: int change_passphrase = 0;
72:
1.14 markus 73: /*
74: * Flag indicating that we just want to change the comment. This can be set
75: * on the command line.
76: */
1.1 deraadt 77: int change_comment = 0;
78:
1.2 provos 79: int quiet = 0;
80:
1.169 grunk 81: int log_level = SYSLOG_LEVEL_INFO;
82:
1.119 djm 83: /* Flag indicating that we want to hash a known_hosts file */
84: int hash_hosts = 0;
85: /* Flag indicating that we want lookup a host in known_hosts file */
86: int find_host = 0;
87: /* Flag indicating that we want to delete a host from a known_hosts file */
88: int delete_host = 0;
89:
1.182 djm 90: /* Flag indicating that we want to show the contents of a certificate */
91: int show_cert = 0;
92:
1.8 markus 93: /* Flag indicating that we just want to see the key fingerprint */
94: int print_fingerprint = 0;
1.49 markus 95: int print_bubblebabble = 0;
1.8 markus 96:
1.251 djm 97: /* Hash algorithm to use for fingerprints. */
98: int fingerprint_hash = SSH_FP_HASH_DEFAULT;
99:
1.10 markus 100: /* The identity file name, given on the command line or entered by the user. */
101: char identity_file[1024];
102: int have_identity = 0;
1.1 deraadt 103:
104: /* This is set to the passphrase if given on the command line. */
105: char *identity_passphrase = NULL;
106:
107: /* This is set to the new passphrase if given on the command line. */
108: char *identity_new_passphrase = NULL;
109:
110: /* This is set to the new comment if given on the command line. */
111: char *identity_comment = NULL;
112:
1.179 djm 113: /* Path to CA key when certifying keys. */
114: char *ca_key_path = NULL;
115:
1.186 djm 116: /* Certificate serial number */
1.220 djm 117: unsigned long long cert_serial = 0;
1.186 djm 118:
1.179 djm 119: /* Key type when certifying */
120: u_int cert_key_type = SSH2_CERT_TYPE_USER;
121:
122: /* "key ID" of signed key */
123: char *cert_key_id = NULL;
124:
125: /* Comma-separated list of principal names for certifying keys */
126: char *cert_principals = NULL;
127:
128: /* Validity period for certificates */
129: u_int64_t cert_valid_from = 0;
130: u_int64_t cert_valid_to = ~0ULL;
131:
1.186 djm 132: /* Certificate options */
1.190 djm 133: #define CERTOPT_X_FWD (1)
134: #define CERTOPT_AGENT_FWD (1<<1)
135: #define CERTOPT_PORT_FWD (1<<2)
136: #define CERTOPT_PTY (1<<3)
137: #define CERTOPT_USER_RC (1<<4)
138: #define CERTOPT_DEFAULT (CERTOPT_X_FWD|CERTOPT_AGENT_FWD| \
139: CERTOPT_PORT_FWD|CERTOPT_PTY|CERTOPT_USER_RC)
140: u_int32_t certflags_flags = CERTOPT_DEFAULT;
141: char *certflags_command = NULL;
142: char *certflags_src_addr = NULL;
1.179 djm 143:
1.193 djm 144: /* Conversion to/from various formats */
145: int convert_to = 0;
146: int convert_from = 0;
147: enum {
148: FMT_RFC4716,
149: FMT_PKCS8,
150: FMT_PEM
151: } convert_format = FMT_RFC4716;
1.19 markus 152: int print_public = 0;
1.105 jakob 153: int print_generic = 0;
1.33 markus 154:
1.87 djm 155: char *key_type_name = NULL;
1.19 markus 156:
1.197 djm 157: /* Load key from this PKCS#11 provider */
158: char *pkcs11provider = NULL;
1.193 djm 159:
1.237 markus 160: /* Use new OpenSSH private key format when writing SSH2 keys instead of PEM */
161: int use_new_format = 0;
162:
163: /* Cipher for new-format private keys */
164: char *new_format_cipher = NULL;
165:
166: /*
167: * Number of KDF rounds to derive new format keys /
168: * number of primality trials when screening moduli.
169: */
170: int rounds = 0;
171:
1.10 markus 172: /* argv0 */
173: extern char *__progname;
1.1 deraadt 174:
1.248 djm 175: char hostname[NI_MAXHOST];
1.19 markus 176:
1.274 djm 177: #ifdef WITH_OPENSSL
1.115 djm 178: /* moduli.c */
1.124 avsm 179: int gen_candidates(FILE *, u_int32_t, u_int32_t, BIGNUM *);
1.215 dtucker 180: int prime_test(FILE *, FILE *, u_int32_t, u_int32_t, char *, unsigned long,
181: unsigned long);
1.274 djm 182: #endif
1.115 djm 183:
1.63 itojun 184: static void
1.255 djm 185: type_bits_valid(int type, const char *name, u_int32_t *bitsp)
1.206 stevesk 186: {
1.271 djm 187: #ifdef WITH_OPENSSL
1.255 djm 188: u_int maxbits, nid;
1.271 djm 189: #endif
1.206 stevesk 190:
1.269 djm 191: if (type == KEY_UNSPEC)
192: fatal("unknown key type %s", key_type_name);
1.209 djm 193: if (*bitsp == 0) {
1.271 djm 194: #ifdef WITH_OPENSSL
1.206 stevesk 195: if (type == KEY_DSA)
1.209 djm 196: *bitsp = DEFAULT_BITS_DSA;
1.255 djm 197: else if (type == KEY_ECDSA) {
198: if (name != NULL &&
199: (nid = sshkey_ecdsa_nid_from_name(name)) > 0)
200: *bitsp = sshkey_curve_nid_to_bits(nid);
201: if (*bitsp == 0)
202: *bitsp = DEFAULT_BITS_ECDSA;
1.291 dtucker 203: } else
1.271 djm 204: #endif
1.209 djm 205: *bitsp = DEFAULT_BITS;
1.206 stevesk 206: }
1.271 djm 207: #ifdef WITH_OPENSSL
1.206 stevesk 208: maxbits = (type == KEY_DSA) ?
209: OPENSSL_DSA_MAX_MODULUS_BITS : OPENSSL_RSA_MAX_MODULUS_BITS;
1.269 djm 210: if (*bitsp > maxbits)
211: fatal("key bits exceeds maximum %d", maxbits);
1.209 djm 212: if (type == KEY_DSA && *bitsp != 1024)
1.206 stevesk 213: fatal("DSA keys must be 1024 bits");
1.276 djm 214: else if (type != KEY_ECDSA && type != KEY_ED25519 && *bitsp < 1024)
215: fatal("Key must at least be 1024 bits");
1.252 djm 216: else if (type == KEY_ECDSA && sshkey_ecdsa_bits_to_nid(*bitsp) == -1)
1.206 stevesk 217: fatal("Invalid ECDSA key length - valid lengths are "
218: "256, 384 or 521 bits");
1.246 markus 219: #endif
1.206 stevesk 220: }
221:
222: static void
1.10 markus 223: ask_filename(struct passwd *pw, const char *prompt)
1.1 deraadt 224: {
1.12 markus 225: char buf[1024];
1.35 markus 226: char *name = NULL;
227:
1.92 stevesk 228: if (key_type_name == NULL)
1.40 markus 229: name = _PATH_SSH_CLIENT_ID_RSA;
1.140 deraadt 230: else {
1.252 djm 231: switch (sshkey_type_from_name(key_type_name)) {
1.92 stevesk 232: case KEY_RSA1:
233: name = _PATH_SSH_CLIENT_IDENTITY;
234: break;
1.186 djm 235: case KEY_DSA_CERT:
1.92 stevesk 236: case KEY_DSA:
237: name = _PATH_SSH_CLIENT_ID_DSA;
238: break;
1.200 djm 239: case KEY_ECDSA_CERT:
240: case KEY_ECDSA:
241: name = _PATH_SSH_CLIENT_ID_ECDSA;
242: break;
1.186 djm 243: case KEY_RSA_CERT:
1.92 stevesk 244: case KEY_RSA:
245: name = _PATH_SSH_CLIENT_ID_RSA;
246: break;
1.238 markus 247: case KEY_ED25519:
248: case KEY_ED25519_CERT:
249: name = _PATH_SSH_CLIENT_ID_ED25519;
250: break;
1.92 stevesk 251: default:
1.269 djm 252: fatal("bad key type");
1.92 stevesk 253: }
1.140 deraadt 254: }
1.269 djm 255: snprintf(identity_file, sizeof(identity_file),
256: "%s/%s", pw->pw_dir, name);
257: printf("%s (%s): ", prompt, identity_file);
258: fflush(stdout);
1.12 markus 259: if (fgets(buf, sizeof(buf), stdin) == NULL)
260: exit(1);
1.162 gilles 261: buf[strcspn(buf, "\n")] = '\0';
1.12 markus 262: if (strcmp(buf, "") != 0)
263: strlcpy(identity_file, buf, sizeof(identity_file));
264: have_identity = 1;
1.7 markus 265: }
266:
1.252 djm 267: static struct sshkey *
1.61 markus 268: load_identity(char *filename)
1.19 markus 269: {
1.52 markus 270: char *pass;
1.252 djm 271: struct sshkey *prv;
272: int r;
1.52 markus 273:
1.252 djm 274: if ((r = sshkey_load_private(filename, "", &prv, NULL)) == 0)
275: return prv;
276: if (r != SSH_ERR_KEY_WRONG_PASSPHRASE)
277: fatal("Load key \"%s\": %s", filename, ssh_err(r));
278: if (identity_passphrase)
279: pass = xstrdup(identity_passphrase);
280: else
281: pass = read_passphrase("Enter passphrase: ", RP_ALLOW_STDIN);
282: r = sshkey_load_private(filename, pass, &prv, NULL);
283: explicit_bzero(pass, strlen(pass));
284: free(pass);
285: if (r != 0)
286: fatal("Load key \"%s\": %s", filename, ssh_err(r));
1.52 markus 287: return prv;
1.19 markus 288: }
289:
1.32 markus 290: #define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----"
1.100 deraadt 291: #define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----"
1.32 markus 292: #define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----"
1.42 stevesk 293: #define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb
1.19 markus 294:
1.246 markus 295: #ifdef WITH_OPENSSL
1.63 itojun 296: static void
1.252 djm 297: do_convert_to_ssh2(struct passwd *pw, struct sshkey *k)
1.19 markus 298: {
1.252 djm 299: size_t len;
1.36 markus 300: u_char *blob;
1.176 djm 301: char comment[61];
1.252 djm 302: int r;
1.19 markus 303:
1.269 djm 304: if (k->type == KEY_RSA1)
305: fatal("version 1 keys are not supported");
306: if ((r = sshkey_to_blob(k, &blob, &len)) != 0)
307: fatal("key_to_blob failed: %s", ssh_err(r));
1.176 djm 308: /* Comment + surrounds must fit into 72 chars (RFC 4716 sec 3.3) */
309: snprintf(comment, sizeof(comment),
310: "%u-bit %s, converted by %s@%s from OpenSSH",
1.252 djm 311: sshkey_size(k), sshkey_type(k),
1.19 markus 312: pw->pw_name, hostname);
1.176 djm 313:
314: fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN);
315: fprintf(stdout, "Comment: \"%s\"\n", comment);
1.19 markus 316: dump_base64(stdout, blob, len);
1.32 markus 317: fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END);
1.252 djm 318: sshkey_free(k);
1.227 djm 319: free(blob);
1.19 markus 320: exit(0);
321: }
322:
1.63 itojun 323: static void
1.252 djm 324: do_convert_to_pkcs8(struct sshkey *k)
1.193 djm 325: {
1.252 djm 326: switch (sshkey_type_plain(k->type)) {
1.213 djm 327: case KEY_RSA1:
1.193 djm 328: case KEY_RSA:
329: if (!PEM_write_RSA_PUBKEY(stdout, k->rsa))
330: fatal("PEM_write_RSA_PUBKEY failed");
331: break;
332: case KEY_DSA:
333: if (!PEM_write_DSA_PUBKEY(stdout, k->dsa))
334: fatal("PEM_write_DSA_PUBKEY failed");
335: break;
1.200 djm 336: case KEY_ECDSA:
337: if (!PEM_write_EC_PUBKEY(stdout, k->ecdsa))
338: fatal("PEM_write_EC_PUBKEY failed");
339: break;
1.193 djm 340: default:
1.252 djm 341: fatal("%s: unsupported key type %s", __func__, sshkey_type(k));
1.193 djm 342: }
343: exit(0);
344: }
345:
346: static void
1.252 djm 347: do_convert_to_pem(struct sshkey *k)
1.193 djm 348: {
1.252 djm 349: switch (sshkey_type_plain(k->type)) {
1.213 djm 350: case KEY_RSA1:
1.193 djm 351: case KEY_RSA:
352: if (!PEM_write_RSAPublicKey(stdout, k->rsa))
353: fatal("PEM_write_RSAPublicKey failed");
354: break;
355: #if notyet /* OpenSSH 0.9.8 lacks this function */
356: case KEY_DSA:
357: if (!PEM_write_DSAPublicKey(stdout, k->dsa))
358: fatal("PEM_write_DSAPublicKey failed");
359: break;
360: #endif
1.200 djm 361: /* XXX ECDSA? */
1.193 djm 362: default:
1.252 djm 363: fatal("%s: unsupported key type %s", __func__, sshkey_type(k));
1.193 djm 364: }
365: exit(0);
366: }
367:
368: static void
369: do_convert_to(struct passwd *pw)
370: {
1.252 djm 371: struct sshkey *k;
1.193 djm 372: struct stat st;
1.252 djm 373: int r;
1.193 djm 374:
375: if (!have_identity)
376: ask_filename(pw, "Enter file in which the key is");
377: if (stat(identity_file, &st) < 0)
378: fatal("%s: %s: %s", __progname, identity_file, strerror(errno));
1.252 djm 379: if ((r = sshkey_load_public(identity_file, &k, NULL)) != 0)
380: k = load_identity(identity_file);
1.193 djm 381: switch (convert_format) {
382: case FMT_RFC4716:
383: do_convert_to_ssh2(pw, k);
384: break;
385: case FMT_PKCS8:
386: do_convert_to_pkcs8(k);
387: break;
388: case FMT_PEM:
389: do_convert_to_pem(k);
390: break;
391: default:
392: fatal("%s: unknown key format %d", __func__, convert_format);
393: }
394: exit(0);
395: }
396:
1.252 djm 397: /*
398: * This is almost exactly the bignum1 encoding, but with 32 bit for length
399: * instead of 16.
400: */
1.193 djm 401: static void
1.252 djm 402: buffer_get_bignum_bits(struct sshbuf *b, BIGNUM *value)
1.32 markus 403: {
1.252 djm 404: u_int bytes, bignum_bits;
405: int r;
1.53 markus 406:
1.252 djm 407: if ((r = sshbuf_get_u32(b, &bignum_bits)) != 0)
408: fatal("%s: buffer error: %s", __func__, ssh_err(r));
409: bytes = (bignum_bits + 7) / 8;
410: if (sshbuf_len(b) < bytes)
411: fatal("%s: input buffer too small: need %d have %zu",
412: __func__, bytes, sshbuf_len(b));
413: if (BN_bin2bn(sshbuf_ptr(b), bytes, value) == NULL)
414: fatal("%s: BN_bin2bn failed", __func__);
415: if ((r = sshbuf_consume(b, bytes)) != 0)
416: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.32 markus 417: }
418:
1.252 djm 419: static struct sshkey *
1.93 markus 420: do_convert_private_ssh2_from_blob(u_char *blob, u_int blen)
1.32 markus 421: {
1.252 djm 422: struct sshbuf *b;
423: struct sshkey *key = NULL;
1.64 markus 424: char *type, *cipher;
1.252 djm 425: u_char e1, e2, e3, *sig = NULL, data[] = "abcde12345";
426: int r, rlen, ktype;
427: u_int magic, i1, i2, i3, i4;
428: size_t slen;
1.62 markus 429: u_long e;
1.32 markus 430:
1.252 djm 431: if ((b = sshbuf_from(blob, blen)) == NULL)
432: fatal("%s: sshbuf_from failed", __func__);
433: if ((r = sshbuf_get_u32(b, &magic)) != 0)
434: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.32 markus 435:
436: if (magic != SSH_COM_PRIVATE_KEY_MAGIC) {
1.252 djm 437: error("bad magic 0x%x != 0x%x", magic,
438: SSH_COM_PRIVATE_KEY_MAGIC);
439: sshbuf_free(b);
1.32 markus 440: return NULL;
441: }
1.252 djm 442: if ((r = sshbuf_get_u32(b, &i1)) != 0 ||
443: (r = sshbuf_get_cstring(b, &type, NULL)) != 0 ||
444: (r = sshbuf_get_cstring(b, &cipher, NULL)) != 0 ||
445: (r = sshbuf_get_u32(b, &i2)) != 0 ||
446: (r = sshbuf_get_u32(b, &i3)) != 0 ||
447: (r = sshbuf_get_u32(b, &i4)) != 0)
448: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.158 stevesk 449: debug("ignore (%d %d %d %d)", i1, i2, i3, i4);
1.32 markus 450: if (strcmp(cipher, "none") != 0) {
451: error("unsupported cipher %s", cipher);
1.227 djm 452: free(cipher);
1.252 djm 453: sshbuf_free(b);
1.227 djm 454: free(type);
1.32 markus 455: return NULL;
456: }
1.227 djm 457: free(cipher);
1.32 markus 458:
1.53 markus 459: if (strstr(type, "dsa")) {
460: ktype = KEY_DSA;
461: } else if (strstr(type, "rsa")) {
462: ktype = KEY_RSA;
463: } else {
1.252 djm 464: sshbuf_free(b);
1.227 djm 465: free(type);
1.32 markus 466: return NULL;
467: }
1.252 djm 468: if ((key = sshkey_new_private(ktype)) == NULL)
469: fatal("key_new_private failed");
1.227 djm 470: free(type);
1.53 markus 471:
472: switch (key->type) {
473: case KEY_DSA:
1.252 djm 474: buffer_get_bignum_bits(b, key->dsa->p);
475: buffer_get_bignum_bits(b, key->dsa->g);
476: buffer_get_bignum_bits(b, key->dsa->q);
477: buffer_get_bignum_bits(b, key->dsa->pub_key);
478: buffer_get_bignum_bits(b, key->dsa->priv_key);
1.53 markus 479: break;
480: case KEY_RSA:
1.252 djm 481: if ((r = sshbuf_get_u8(b, &e1)) != 0 ||
482: (e1 < 30 && (r = sshbuf_get_u8(b, &e2)) != 0) ||
483: (e1 < 30 && (r = sshbuf_get_u8(b, &e3)) != 0))
484: fatal("%s: buffer error: %s", __func__, ssh_err(r));
485: e = e1;
1.62 markus 486: debug("e %lx", e);
487: if (e < 30) {
488: e <<= 8;
1.252 djm 489: e += e2;
1.62 markus 490: debug("e %lx", e);
491: e <<= 8;
1.252 djm 492: e += e3;
1.62 markus 493: debug("e %lx", e);
494: }
495: if (!BN_set_word(key->rsa->e, e)) {
1.252 djm 496: sshbuf_free(b);
497: sshkey_free(key);
1.53 markus 498: return NULL;
499: }
1.252 djm 500: buffer_get_bignum_bits(b, key->rsa->d);
501: buffer_get_bignum_bits(b, key->rsa->n);
502: buffer_get_bignum_bits(b, key->rsa->iqmp);
503: buffer_get_bignum_bits(b, key->rsa->q);
504: buffer_get_bignum_bits(b, key->rsa->p);
505: if ((r = rsa_generate_additional_parameters(key->rsa)) != 0)
506: fatal("generate RSA parameters failed: %s", ssh_err(r));
1.53 markus 507: break;
508: }
1.252 djm 509: rlen = sshbuf_len(b);
1.85 deraadt 510: if (rlen != 0)
1.53 markus 511: error("do_convert_private_ssh2_from_blob: "
512: "remaining bytes in key blob %d", rlen);
1.252 djm 513: sshbuf_free(b);
1.64 markus 514:
515: /* try the key */
1.285 markus 516: if (sshkey_sign(key, &sig, &slen, data, sizeof(data), NULL, 0) != 0 ||
1.252 djm 517: sshkey_verify(key, sig, slen, data, sizeof(data), 0) != 0) {
518: sshkey_free(key);
519: free(sig);
520: return NULL;
521: }
1.227 djm 522: free(sig);
1.32 markus 523: return key;
524: }
525:
1.137 dtucker 526: static int
527: get_line(FILE *fp, char *line, size_t len)
528: {
529: int c;
530: size_t pos = 0;
531:
532: line[0] = '\0';
533: while ((c = fgetc(fp)) != EOF) {
1.269 djm 534: if (pos >= len - 1)
535: fatal("input line too long.");
1.140 deraadt 536: switch (c) {
1.137 dtucker 537: case '\r':
538: c = fgetc(fp);
1.269 djm 539: if (c != EOF && c != '\n' && ungetc(c, fp) == EOF)
540: fatal("unget: %s", strerror(errno));
1.137 dtucker 541: return pos;
542: case '\n':
543: return pos;
544: }
545: line[pos++] = c;
546: line[pos] = '\0';
547: }
1.157 stevesk 548: /* We reached EOF */
549: return -1;
1.137 dtucker 550: }
551:
1.63 itojun 552: static void
1.252 djm 553: do_convert_from_ssh2(struct passwd *pw, struct sshkey **k, int *private)
1.19 markus 554: {
1.252 djm 555: int r, blen, escaped = 0;
1.98 markus 556: u_int len;
1.137 dtucker 557: char line[1024];
1.80 stevesk 558: u_char blob[8096];
1.19 markus 559: char encoded[8096];
560: FILE *fp;
561:
1.191 djm 562: if ((fp = fopen(identity_file, "r")) == NULL)
563: fatal("%s: %s: %s", __progname, identity_file, strerror(errno));
1.19 markus 564: encoded[0] = '\0';
1.137 dtucker 565: while ((blen = get_line(fp, line, sizeof(line))) != -1) {
1.228 djm 566: if (blen > 0 && line[blen - 1] == '\\')
1.25 markus 567: escaped++;
1.19 markus 568: if (strncmp(line, "----", 4) == 0 ||
569: strstr(line, ": ") != NULL) {
1.32 markus 570: if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL)
1.193 djm 571: *private = 1;
1.64 markus 572: if (strstr(line, " END ") != NULL) {
573: break;
574: }
1.60 markus 575: /* fprintf(stderr, "ignore: %s", line); */
1.19 markus 576: continue;
577: }
1.25 markus 578: if (escaped) {
579: escaped--;
1.60 markus 580: /* fprintf(stderr, "escaped: %s", line); */
1.25 markus 581: continue;
1.19 markus 582: }
583: strlcat(encoded, line, sizeof(encoded));
584: }
1.98 markus 585: len = strlen(encoded);
586: if (((len % 4) == 3) &&
587: (encoded[len-1] == '=') &&
588: (encoded[len-2] == '=') &&
589: (encoded[len-3] == '='))
590: encoded[len-3] = '\0';
1.91 stevesk 591: blen = uudecode(encoded, blob, sizeof(blob));
1.269 djm 592: if (blen < 0)
593: fatal("uudecode failed.");
1.252 djm 594: if (*private)
595: *k = do_convert_private_ssh2_from_blob(blob, blen);
1.269 djm 596: else if ((r = sshkey_from_blob(blob, blen, k)) != 0)
597: fatal("decode blob failed: %s", ssh_err(r));
1.193 djm 598: fclose(fp);
599: }
600:
601: static void
1.252 djm 602: do_convert_from_pkcs8(struct sshkey **k, int *private)
1.193 djm 603: {
604: EVP_PKEY *pubkey;
605: FILE *fp;
606:
607: if ((fp = fopen(identity_file, "r")) == NULL)
608: fatal("%s: %s: %s", __progname, identity_file, strerror(errno));
609: if ((pubkey = PEM_read_PUBKEY(fp, NULL, NULL, NULL)) == NULL) {
610: fatal("%s: %s is not a recognised public key format", __func__,
611: identity_file);
612: }
613: fclose(fp);
614: switch (EVP_PKEY_type(pubkey->type)) {
615: case EVP_PKEY_RSA:
1.252 djm 616: if ((*k = sshkey_new(KEY_UNSPEC)) == NULL)
617: fatal("sshkey_new failed");
1.193 djm 618: (*k)->type = KEY_RSA;
619: (*k)->rsa = EVP_PKEY_get1_RSA(pubkey);
620: break;
621: case EVP_PKEY_DSA:
1.252 djm 622: if ((*k = sshkey_new(KEY_UNSPEC)) == NULL)
623: fatal("sshkey_new failed");
1.193 djm 624: (*k)->type = KEY_DSA;
625: (*k)->dsa = EVP_PKEY_get1_DSA(pubkey);
626: break;
1.200 djm 627: case EVP_PKEY_EC:
1.252 djm 628: if ((*k = sshkey_new(KEY_UNSPEC)) == NULL)
629: fatal("sshkey_new failed");
1.200 djm 630: (*k)->type = KEY_ECDSA;
631: (*k)->ecdsa = EVP_PKEY_get1_EC_KEY(pubkey);
1.252 djm 632: (*k)->ecdsa_nid = sshkey_ecdsa_key_to_nid((*k)->ecdsa);
1.200 djm 633: break;
1.193 djm 634: default:
635: fatal("%s: unsupported pubkey type %d", __func__,
636: EVP_PKEY_type(pubkey->type));
637: }
638: EVP_PKEY_free(pubkey);
639: return;
640: }
641:
642: static void
1.252 djm 643: do_convert_from_pem(struct sshkey **k, int *private)
1.193 djm 644: {
645: FILE *fp;
646: RSA *rsa;
647: #ifdef notyet
648: DSA *dsa;
649: #endif
650:
651: if ((fp = fopen(identity_file, "r")) == NULL)
652: fatal("%s: %s: %s", __progname, identity_file, strerror(errno));
653: if ((rsa = PEM_read_RSAPublicKey(fp, NULL, NULL, NULL)) != NULL) {
1.252 djm 654: if ((*k = sshkey_new(KEY_UNSPEC)) == NULL)
655: fatal("sshkey_new failed");
1.193 djm 656: (*k)->type = KEY_RSA;
657: (*k)->rsa = rsa;
658: fclose(fp);
659: return;
660: }
661: #if notyet /* OpenSSH 0.9.8 lacks this function */
662: rewind(fp);
663: if ((dsa = PEM_read_DSAPublicKey(fp, NULL, NULL, NULL)) != NULL) {
1.252 djm 664: if ((*k = sshkey_new(KEY_UNSPEC)) == NULL)
665: fatal("sshkey_new failed");
1.193 djm 666: (*k)->type = KEY_DSA;
667: (*k)->dsa = dsa;
668: fclose(fp);
669: return;
670: }
1.200 djm 671: /* XXX ECDSA */
1.193 djm 672: #endif
673: fatal("%s: unrecognised raw private key format", __func__);
674: }
675:
676: static void
677: do_convert_from(struct passwd *pw)
678: {
1.252 djm 679: struct sshkey *k = NULL;
680: int r, private = 0, ok = 0;
1.193 djm 681: struct stat st;
682:
683: if (!have_identity)
684: ask_filename(pw, "Enter file in which the key is");
685: if (stat(identity_file, &st) < 0)
686: fatal("%s: %s: %s", __progname, identity_file, strerror(errno));
687:
688: switch (convert_format) {
689: case FMT_RFC4716:
690: do_convert_from_ssh2(pw, &k, &private);
691: break;
692: case FMT_PKCS8:
693: do_convert_from_pkcs8(&k, &private);
694: break;
695: case FMT_PEM:
696: do_convert_from_pem(&k, &private);
697: break;
698: default:
699: fatal("%s: unknown key format %d", __func__, convert_format);
700: }
701:
1.260 djm 702: if (!private) {
1.252 djm 703: if ((r = sshkey_write(k, stdout)) == 0)
704: ok = 1;
1.193 djm 705: if (ok)
706: fprintf(stdout, "\n");
1.260 djm 707: } else {
1.193 djm 708: switch (k->type) {
709: case KEY_DSA:
710: ok = PEM_write_DSAPrivateKey(stdout, k->dsa, NULL,
711: NULL, 0, NULL, NULL);
712: break;
1.200 djm 713: case KEY_ECDSA:
714: ok = PEM_write_ECPrivateKey(stdout, k->ecdsa, NULL,
715: NULL, 0, NULL, NULL);
716: break;
1.193 djm 717: case KEY_RSA:
718: ok = PEM_write_RSAPrivateKey(stdout, k->rsa, NULL,
719: NULL, 0, NULL, NULL);
720: break;
721: default:
722: fatal("%s: unsupported key type %s", __func__,
1.252 djm 723: sshkey_type(k));
1.193 djm 724: }
725: }
726:
1.269 djm 727: if (!ok)
728: fatal("key write failed");
1.252 djm 729: sshkey_free(k);
1.19 markus 730: exit(0);
731: }
1.246 markus 732: #endif
1.19 markus 733:
1.63 itojun 734: static void
1.19 markus 735: do_print_public(struct passwd *pw)
736: {
1.252 djm 737: struct sshkey *prv;
1.19 markus 738: struct stat st;
1.252 djm 739: int r;
1.19 markus 740:
741: if (!have_identity)
742: ask_filename(pw, "Enter file in which the key is");
1.269 djm 743: if (stat(identity_file, &st) < 0)
744: fatal("%s: %s", identity_file, strerror(errno));
1.61 markus 745: prv = load_identity(identity_file);
1.252 djm 746: if ((r = sshkey_write(prv, stdout)) != 0)
1.269 djm 747: error("key_write failed: %s", ssh_err(r));
1.252 djm 748: sshkey_free(prv);
1.19 markus 749: fprintf(stdout, "\n");
750: exit(0);
751: }
752:
1.66 markus 753: static void
1.197 djm 754: do_download(struct passwd *pw)
1.75 markus 755: {
1.177 markus 756: #ifdef ENABLE_PKCS11
1.252 djm 757: struct sshkey **keys = NULL;
1.177 markus 758: int i, nkeys;
1.252 djm 759: enum sshkey_fp_rep rep;
1.251 djm 760: int fptype;
1.221 djm 761: char *fp, *ra;
1.222 djm 762:
1.251 djm 763: fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash;
764: rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT;
1.75 markus 765:
1.177 markus 766: pkcs11_init(0);
767: nkeys = pkcs11_add_provider(pkcs11provider, NULL, &keys);
768: if (nkeys <= 0)
769: fatal("cannot read public key from pkcs11");
770: for (i = 0; i < nkeys; i++) {
1.221 djm 771: if (print_fingerprint) {
1.252 djm 772: fp = sshkey_fingerprint(keys[i], fptype, rep);
773: ra = sshkey_fingerprint(keys[i], fingerprint_hash,
1.221 djm 774: SSH_FP_RANDOMART);
1.259 djm 775: if (fp == NULL || ra == NULL)
776: fatal("%s: sshkey_fingerprint fail", __func__);
1.252 djm 777: printf("%u %s %s (PKCS11 key)\n", sshkey_size(keys[i]),
778: fp, sshkey_type(keys[i]));
1.221 djm 779: if (log_level >= SYSLOG_LEVEL_VERBOSE)
780: printf("%s\n", ra);
1.227 djm 781: free(ra);
782: free(fp);
1.221 djm 783: } else {
1.252 djm 784: (void) sshkey_write(keys[i], stdout); /* XXX check */
1.221 djm 785: fprintf(stdout, "\n");
786: }
1.252 djm 787: sshkey_free(keys[i]);
1.97 markus 788: }
1.227 djm 789: free(keys);
1.177 markus 790: pkcs11_terminate();
1.75 markus 791: exit(0);
1.177 markus 792: #else
793: fatal("no pkcs11 support");
794: #endif /* ENABLE_PKCS11 */
1.75 markus 795: }
1.66 markus 796:
1.279 djm 797: static struct sshkey *
798: try_read_key(char **cpp)
799: {
800: struct sshkey *ret;
801: int r;
802:
803: if ((ret = sshkey_new(KEY_RSA1)) == NULL)
804: fatal("sshkey_new failed");
805: /* Try RSA1 */
806: if ((r = sshkey_read(ret, cpp)) == 0)
807: return ret;
808: /* Try modern */
809: sshkey_free(ret);
810: if ((ret = sshkey_new(KEY_UNSPEC)) == NULL)
811: fatal("sshkey_new failed");
812: if ((r = sshkey_read(ret, cpp)) == 0)
813: return ret;
814: /* Not a key */
815: sshkey_free(ret);
816: return NULL;
817: }
818:
1.63 itojun 819: static void
1.279 djm 820: fingerprint_one_key(const struct sshkey *public, const char *comment)
1.8 markus 821: {
1.279 djm 822: char *fp = NULL, *ra = NULL;
1.252 djm 823: enum sshkey_fp_rep rep;
1.251 djm 824: int fptype;
1.12 markus 825:
1.251 djm 826: fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash;
827: rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT;
1.279 djm 828: fp = sshkey_fingerprint(public, fptype, rep);
829: ra = sshkey_fingerprint(public, fingerprint_hash, SSH_FP_RANDOMART);
830: if (fp == NULL || ra == NULL)
831: fatal("%s: sshkey_fingerprint failed", __func__);
832: printf("%u %s %s (%s)\n", sshkey_size(public), fp,
833: comment ? comment : "no comment", sshkey_type(public));
834: if (log_level >= SYSLOG_LEVEL_VERBOSE)
835: printf("%s\n", ra);
836: free(ra);
837: free(fp);
838: }
839:
840: static void
841: fingerprint_private(const char *path)
842: {
843: struct stat st;
844: char *comment = NULL;
845: struct sshkey *public = NULL;
846: int r;
847:
848: if (stat(identity_file, &st) < 0)
849: fatal("%s: %s", path, strerror(errno));
1.280 djm 850: if ((r = sshkey_load_public(path, &public, &comment)) != 0) {
851: debug("load public \"%s\": %s", path, ssh_err(r));
852: if ((r = sshkey_load_private(path, NULL,
853: &public, &comment)) != 0) {
854: debug("load private \"%s\": %s", path, ssh_err(r));
855: fatal("%s is not a key file.", path);
856: }
857: }
858:
1.279 djm 859: fingerprint_one_key(public, comment);
860: sshkey_free(public);
861: free(comment);
862: }
863:
864: static void
865: do_fingerprint(struct passwd *pw)
866: {
867: FILE *f;
868: struct sshkey *public = NULL;
1.287 djm 869: char *comment = NULL, *cp, *ep, line[SSH_MAX_PUBKEY_BYTES];
1.279 djm 870: int i, invalid = 1;
871: const char *path;
1.289 djm 872: u_long lnum = 0;
1.279 djm 873:
1.12 markus 874: if (!have_identity)
875: ask_filename(pw, "Enter file in which the key is");
1.279 djm 876: path = identity_file;
1.15 markus 877:
1.279 djm 878: if (strcmp(identity_file, "-") == 0) {
879: f = stdin;
880: path = "(stdin)";
881: } else if ((f = fopen(path, "r")) == NULL)
882: fatal("%s: %s: %s", __progname, path, strerror(errno));
883:
884: while (read_keyfile_line(f, path, line, sizeof(line), &lnum) == 0) {
885: cp = line;
886: cp[strcspn(cp, "\n")] = '\0';
887: /* Trim leading space and comments */
888: cp = line + strspn(line, " \t");
889: if (*cp == '#' || *cp == '\0')
890: continue;
1.191 djm 891:
1.279 djm 892: /*
893: * Input may be plain keys, private keys, authorized_keys
894: * or known_hosts.
895: */
896:
897: /*
898: * Try private keys first. Assume a key is private if
899: * "SSH PRIVATE KEY" appears on the first line and we're
900: * not reading from stdin (XXX support private keys on stdin).
901: */
902: if (lnum == 1 && strcmp(identity_file, "-") != 0 &&
1.280 djm 903: strstr(cp, "PRIVATE KEY") != NULL) {
1.279 djm 904: fclose(f);
905: fingerprint_private(path);
906: exit(0);
907: }
908:
909: /*
910: * If it's not a private key, then this must be prepared to
911: * accept a public key prefixed with a hostname or options.
912: * Try a bare key first, otherwise skip the leading stuff.
913: */
914: if ((public = try_read_key(&cp)) == NULL) {
915: i = strtol(cp, &ep, 10);
916: if (i == 0 || ep == NULL ||
917: (*ep != ' ' && *ep != '\t')) {
918: int quoted = 0;
919:
920: comment = cp;
921: for (; *cp && (quoted || (*cp != ' ' &&
922: *cp != '\t')); cp++) {
923: if (*cp == '\\' && cp[1] == '"')
924: cp++; /* Skip both */
925: else if (*cp == '"')
926: quoted = !quoted;
927: }
928: if (!*cp)
929: continue;
930: *cp++ = '\0';
931: }
1.191 djm 932: }
1.279 djm 933: /* Retry after parsing leading hostname/key options */
934: if (public == NULL && (public = try_read_key(&cp)) == NULL) {
1.289 djm 935: debug("%s:%lu: not a public key", path, lnum);
1.191 djm 936: continue;
937: }
938:
1.279 djm 939: /* Find trailing comment, if any */
940: for (; *cp == ' ' || *cp == '\t'; cp++)
1.191 djm 941: ;
1.279 djm 942: if (*cp != '\0' && *cp != '#')
1.191 djm 943: comment = cp;
1.279 djm 944:
945: fingerprint_one_key(public, comment);
1.252 djm 946: sshkey_free(public);
1.279 djm 947: invalid = 0; /* One good key in the file is sufficient */
1.15 markus 948: }
1.191 djm 949: fclose(f);
950:
1.269 djm 951: if (invalid)
1.279 djm 952: fatal("%s is not a public key file.", path);
1.12 markus 953: exit(0);
1.8 markus 954: }
955:
1.119 djm 956: static void
1.206 stevesk 957: do_gen_all_hostkeys(struct passwd *pw)
958: {
959: struct {
960: char *key_type;
961: char *key_type_display;
962: char *path;
963: } key_types[] = {
1.267 djm 964: #ifdef WITH_OPENSSL
965: #ifdef WITH_SSH1
1.206 stevesk 966: { "rsa1", "RSA1", _PATH_HOST_KEY_FILE },
1.267 djm 967: #endif /* WITH_SSH1 */
1.206 stevesk 968: { "rsa", "RSA" ,_PATH_HOST_RSA_KEY_FILE },
969: { "dsa", "DSA", _PATH_HOST_DSA_KEY_FILE },
970: { "ecdsa", "ECDSA",_PATH_HOST_ECDSA_KEY_FILE },
1.267 djm 971: #endif /* WITH_OPENSSL */
1.238 markus 972: { "ed25519", "ED25519",_PATH_HOST_ED25519_KEY_FILE },
1.206 stevesk 973: { NULL, NULL, NULL }
974: };
975:
976: int first = 0;
977: struct stat st;
1.252 djm 978: struct sshkey *private, *public;
1.206 stevesk 979: char comment[1024];
1.252 djm 980: int i, type, fd, r;
1.206 stevesk 981: FILE *f;
982:
983: for (i = 0; key_types[i].key_type; i++) {
984: if (stat(key_types[i].path, &st) == 0)
985: continue;
986: if (errno != ENOENT) {
1.269 djm 987: error("Could not stat %s: %s", key_types[i].path,
1.206 stevesk 988: strerror(errno));
989: first = 0;
990: continue;
991: }
992:
993: if (first == 0) {
994: first = 1;
995: printf("%s: generating new host keys: ", __progname);
996: }
997: printf("%s ", key_types[i].key_type_display);
998: fflush(stdout);
1.252 djm 999: type = sshkey_type_from_name(key_types[i].key_type);
1.206 stevesk 1000: strlcpy(identity_file, key_types[i].path, sizeof(identity_file));
1001: bits = 0;
1.255 djm 1002: type_bits_valid(type, NULL, &bits);
1.252 djm 1003: if ((r = sshkey_generate(type, bits, &private)) != 0) {
1.269 djm 1004: error("key_generate failed: %s", ssh_err(r));
1.206 stevesk 1005: first = 0;
1006: continue;
1007: }
1.252 djm 1008: if ((r = sshkey_from_private(private, &public)) != 0)
1009: fatal("sshkey_from_private failed: %s", ssh_err(r));
1.206 stevesk 1010: snprintf(comment, sizeof comment, "%s@%s", pw->pw_name,
1011: hostname);
1.252 djm 1012: if ((r = sshkey_save_private(private, identity_file, "",
1013: comment, use_new_format, new_format_cipher, rounds)) != 0) {
1.269 djm 1014: error("Saving key \"%s\" failed: %s",
1015: identity_file, ssh_err(r));
1.252 djm 1016: sshkey_free(private);
1017: sshkey_free(public);
1.206 stevesk 1018: first = 0;
1019: continue;
1020: }
1.252 djm 1021: sshkey_free(private);
1.206 stevesk 1022: strlcat(identity_file, ".pub", sizeof(identity_file));
1023: fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644);
1024: if (fd == -1) {
1.269 djm 1025: error("Could not save your public key in %s",
1.206 stevesk 1026: identity_file);
1.252 djm 1027: sshkey_free(public);
1.206 stevesk 1028: first = 0;
1029: continue;
1030: }
1031: f = fdopen(fd, "w");
1032: if (f == NULL) {
1.269 djm 1033: error("fdopen %s failed", identity_file);
1.250 doug 1034: close(fd);
1.252 djm 1035: sshkey_free(public);
1.206 stevesk 1036: first = 0;
1037: continue;
1038: }
1.254 djm 1039: if ((r = sshkey_write(public, f)) != 0) {
1.269 djm 1040: error("write key failed: %s", ssh_err(r));
1.250 doug 1041: fclose(f);
1.252 djm 1042: sshkey_free(public);
1.206 stevesk 1043: first = 0;
1044: continue;
1045: }
1046: fprintf(f, " %s\n", comment);
1047: fclose(f);
1.252 djm 1048: sshkey_free(public);
1.206 stevesk 1049:
1050: }
1051: if (first != 0)
1052: printf("\n");
1053: }
1054:
1.256 djm 1055: struct known_hosts_ctx {
1.257 djm 1056: const char *host; /* Hostname searched for in find/delete case */
1057: FILE *out; /* Output file, stdout for find_hosts case */
1058: int has_unhashed; /* When hashing, original had unhashed hosts */
1059: int found_key; /* For find/delete, host was found */
1060: int invalid; /* File contained invalid items; don't delete */
1.256 djm 1061: };
1062:
1063: static int
1064: known_hosts_hash(struct hostkey_foreach_line *l, void *_ctx)
1.119 djm 1065: {
1.256 djm 1066: struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx;
1067: char *hashed, *cp, *hosts, *ohosts;
1068: int has_wild = l->hosts && strcspn(l->hosts, "*?!") != strlen(l->hosts);
1069:
1.262 djm 1070: switch (l->status) {
1071: case HKF_STATUS_OK:
1072: case HKF_STATUS_MATCHED:
1073: /*
1074: * Don't hash hosts already already hashed, with wildcard
1075: * characters or a CA/revocation marker.
1076: */
1077: if ((l->match & HKF_MATCH_HOST_HASHED) != 0 ||
1078: has_wild || l->marker != MRK_NONE) {
1079: fprintf(ctx->out, "%s\n", l->line);
1080: if (has_wild && !find_host) {
1.269 djm 1081: logit("%s:%ld: ignoring host name "
1082: "with wildcard: %.64s", l->path,
1.262 djm 1083: l->linenum, l->hosts);
1084: }
1085: return 0;
1086: }
1087: /*
1088: * Split any comma-separated hostnames from the host list,
1089: * hash and store separately.
1090: */
1091: ohosts = hosts = xstrdup(l->hosts);
1092: while ((cp = strsep(&hosts, ",")) != NULL && *cp != '\0') {
1093: if ((hashed = host_hash(cp, NULL, 0)) == NULL)
1094: fatal("hash_host failed");
1095: fprintf(ctx->out, "%s %s\n", hashed, l->rawkey);
1096: ctx->has_unhashed = 1;
1097: }
1098: free(ohosts);
1099: return 0;
1100: case HKF_STATUS_INVALID:
1101: /* Retain invalid lines, but mark file as invalid. */
1.256 djm 1102: ctx->invalid = 1;
1.269 djm 1103: logit("%s:%ld: invalid line", l->path, l->linenum);
1.262 djm 1104: /* FALLTHROUGH */
1105: default:
1.256 djm 1106: fprintf(ctx->out, "%s\n", l->line);
1107: return 0;
1108: }
1.262 djm 1109: /* NOTREACHED */
1110: return -1;
1.256 djm 1111: }
1112:
1113: static int
1114: known_hosts_find_delete(struct hostkey_foreach_line *l, void *_ctx)
1115: {
1116: struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx;
1.272 djm 1117: enum sshkey_fp_rep rep;
1118: int fptype;
1119: char *fp;
1120:
1121: fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash;
1122: rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT;
1.256 djm 1123:
1.262 djm 1124: if (l->status == HKF_STATUS_MATCHED) {
1.256 djm 1125: if (delete_host) {
1126: if (l->marker != MRK_NONE) {
1127: /* Don't remove CA and revocation lines */
1128: fprintf(ctx->out, "%s\n", l->line);
1129: } else {
1130: /*
1131: * Hostname matches and has no CA/revoke
1132: * marker, delete it by *not* writing the
1133: * line to ctx->out.
1134: */
1135: ctx->found_key = 1;
1136: if (!quiet)
1137: printf("# Host %s found: line %ld\n",
1138: ctx->host, l->linenum);
1139: }
1140: return 0;
1141: } else if (find_host) {
1142: ctx->found_key = 1;
1143: if (!quiet) {
1144: printf("# Host %s found: line %ld %s\n",
1145: ctx->host,
1146: l->linenum, l->marker == MRK_CA ? "CA" :
1147: (l->marker == MRK_REVOKE ? "REVOKED" : ""));
1148: }
1149: if (hash_hosts)
1150: known_hosts_hash(l, ctx);
1.272 djm 1151: else if (print_fingerprint) {
1152: fp = sshkey_fingerprint(l->key, fptype, rep);
1153: printf("%s %s %s %s\n", ctx->host,
1154: sshkey_type(l->key), fp, l->comment);
1155: free(fp);
1156: } else
1.256 djm 1157: fprintf(ctx->out, "%s\n", l->line);
1158: return 0;
1159: }
1160: } else if (delete_host) {
1161: /* Retain non-matching hosts when deleting */
1162: if (l->status == HKF_STATUS_INVALID) {
1163: ctx->invalid = 1;
1.269 djm 1164: logit("%s:%ld: invalid line", l->path, l->linenum);
1.256 djm 1165: }
1166: fprintf(ctx->out, "%s\n", l->line);
1.166 djm 1167: }
1.256 djm 1168: return 0;
1.119 djm 1169: }
1170:
1171: static void
1172: do_known_hosts(struct passwd *pw, const char *name)
1173: {
1.258 deraadt 1174: char *cp, tmp[PATH_MAX], old[PATH_MAX];
1.257 djm 1175: int r, fd, oerrno, inplace = 0;
1.256 djm 1176: struct known_hosts_ctx ctx;
1.272 djm 1177: u_int foreach_options;
1.119 djm 1178:
1179: if (!have_identity) {
1180: cp = tilde_expand_filename(_PATH_SSH_USER_HOSTFILE, pw->pw_uid);
1181: if (strlcpy(identity_file, cp, sizeof(identity_file)) >=
1182: sizeof(identity_file))
1183: fatal("Specified known hosts path too long");
1.227 djm 1184: free(cp);
1.119 djm 1185: have_identity = 1;
1186: }
1187:
1.256 djm 1188: memset(&ctx, 0, sizeof(ctx));
1189: ctx.out = stdout;
1190: ctx.host = name;
1191:
1.119 djm 1192: /*
1193: * Find hosts goes to stdout, hash and deletions happen in-place
1194: * A corner case is ssh-keygen -HF foo, which should go to stdout
1195: */
1196: if (!find_host && (hash_hosts || delete_host)) {
1197: if (strlcpy(tmp, identity_file, sizeof(tmp)) >= sizeof(tmp) ||
1198: strlcat(tmp, ".XXXXXXXXXX", sizeof(tmp)) >= sizeof(tmp) ||
1199: strlcpy(old, identity_file, sizeof(old)) >= sizeof(old) ||
1200: strlcat(old, ".old", sizeof(old)) >= sizeof(old))
1201: fatal("known_hosts path too long");
1202: umask(077);
1.256 djm 1203: if ((fd = mkstemp(tmp)) == -1)
1.119 djm 1204: fatal("mkstemp: %s", strerror(errno));
1.256 djm 1205: if ((ctx.out = fdopen(fd, "w")) == NULL) {
1206: oerrno = errno;
1.119 djm 1207: unlink(tmp);
1.256 djm 1208: fatal("fdopen: %s", strerror(oerrno));
1.119 djm 1209: }
1.257 djm 1210: inplace = 1;
1.119 djm 1211: }
1212:
1.256 djm 1213: /* XXX support identity_file == "-" for stdin */
1.272 djm 1214: foreach_options = find_host ? HKF_WANT_MATCH : 0;
1215: foreach_options |= print_fingerprint ? HKF_WANT_PARSE_KEY : 0;
1.256 djm 1216: if ((r = hostkeys_foreach(identity_file,
1217: hash_hosts ? known_hosts_hash : known_hosts_find_delete, &ctx,
1.284 deraadt 1218: name, NULL, foreach_options)) != 0) {
1219: if (inplace)
1220: unlink(tmp);
1.256 djm 1221: fatal("%s: hostkeys_foreach failed: %s", __func__, ssh_err(r));
1.284 deraadt 1222: }
1.119 djm 1223:
1.257 djm 1224: if (inplace)
1.256 djm 1225: fclose(ctx.out);
1.119 djm 1226:
1.256 djm 1227: if (ctx.invalid) {
1.269 djm 1228: error("%s is not a valid known_hosts file.", identity_file);
1.257 djm 1229: if (inplace) {
1.269 djm 1230: error("Not replacing existing known_hosts "
1231: "file because of errors");
1.119 djm 1232: unlink(tmp);
1233: }
1234: exit(1);
1.256 djm 1235: } else if (delete_host && !ctx.found_key) {
1.269 djm 1236: logit("Host %s not found in %s", name, identity_file);
1.277 djm 1237: if (inplace)
1238: unlink(tmp);
1.257 djm 1239: } else if (inplace) {
1.119 djm 1240: /* Backup existing file */
1241: if (unlink(old) == -1 && errno != ENOENT)
1242: fatal("unlink %.100s: %s", old, strerror(errno));
1243: if (link(identity_file, old) == -1)
1244: fatal("link %.100s to %.100s: %s", identity_file, old,
1245: strerror(errno));
1246: /* Move new one into place */
1247: if (rename(tmp, identity_file) == -1) {
1248: error("rename\"%s\" to \"%s\": %s", tmp, identity_file,
1249: strerror(errno));
1250: unlink(tmp);
1251: unlink(old);
1252: exit(1);
1253: }
1254:
1.269 djm 1255: printf("%s updated.\n", identity_file);
1256: printf("Original contents retained as %s\n", old);
1.256 djm 1257: if (ctx.has_unhashed) {
1.269 djm 1258: logit("WARNING: %s contains unhashed entries", old);
1259: logit("Delete this file to ensure privacy "
1260: "of hostnames");
1.119 djm 1261: }
1262: }
1263:
1.256 djm 1264: exit (find_host && !ctx.found_key);
1.119 djm 1265: }
1266:
1.13 deraadt 1267: /*
1268: * Perform changing a passphrase. The argument is the passwd structure
1269: * for the current user.
1270: */
1.63 itojun 1271: static void
1.7 markus 1272: do_change_passphrase(struct passwd *pw)
1273: {
1.12 markus 1274: char *comment;
1275: char *old_passphrase, *passphrase1, *passphrase2;
1276: struct stat st;
1.252 djm 1277: struct sshkey *private;
1278: int r;
1.12 markus 1279:
1280: if (!have_identity)
1281: ask_filename(pw, "Enter file in which the key is");
1.269 djm 1282: if (stat(identity_file, &st) < 0)
1283: fatal("%s: %s", identity_file, strerror(errno));
1.12 markus 1284: /* Try to load the file with empty passphrase. */
1.252 djm 1285: r = sshkey_load_private(identity_file, "", &private, &comment);
1286: if (r == SSH_ERR_KEY_WRONG_PASSPHRASE) {
1.12 markus 1287: if (identity_passphrase)
1288: old_passphrase = xstrdup(identity_passphrase);
1289: else
1.65 markus 1290: old_passphrase =
1291: read_passphrase("Enter old passphrase: ",
1292: RP_ALLOW_STDIN);
1.252 djm 1293: r = sshkey_load_private(identity_file, old_passphrase,
1294: &private, &comment);
1.240 djm 1295: explicit_bzero(old_passphrase, strlen(old_passphrase));
1.227 djm 1296: free(old_passphrase);
1.252 djm 1297: if (r != 0)
1298: goto badkey;
1299: } else if (r != 0) {
1300: badkey:
1.269 djm 1301: fatal("Failed to load key %s: %s", identity_file, ssh_err(r));
1.12 markus 1302: }
1.266 djm 1303: if (comment)
1304: printf("Key has comment '%s'\n", comment);
1.12 markus 1305:
1306: /* Ask the new passphrase (twice). */
1307: if (identity_new_passphrase) {
1308: passphrase1 = xstrdup(identity_new_passphrase);
1309: passphrase2 = NULL;
1310: } else {
1311: passphrase1 =
1.65 markus 1312: read_passphrase("Enter new passphrase (empty for no "
1313: "passphrase): ", RP_ALLOW_STDIN);
1314: passphrase2 = read_passphrase("Enter same passphrase again: ",
1.86 deraadt 1315: RP_ALLOW_STDIN);
1.12 markus 1316:
1317: /* Verify that they are the same. */
1318: if (strcmp(passphrase1, passphrase2) != 0) {
1.240 djm 1319: explicit_bzero(passphrase1, strlen(passphrase1));
1320: explicit_bzero(passphrase2, strlen(passphrase2));
1.227 djm 1321: free(passphrase1);
1322: free(passphrase2);
1.12 markus 1323: printf("Pass phrases do not match. Try again.\n");
1324: exit(1);
1325: }
1326: /* Destroy the other copy. */
1.240 djm 1327: explicit_bzero(passphrase2, strlen(passphrase2));
1.227 djm 1328: free(passphrase2);
1.12 markus 1329: }
1330:
1331: /* Save the file using the new passphrase. */
1.252 djm 1332: if ((r = sshkey_save_private(private, identity_file, passphrase1,
1333: comment, use_new_format, new_format_cipher, rounds)) != 0) {
1.269 djm 1334: error("Saving key \"%s\" failed: %s.",
1.252 djm 1335: identity_file, ssh_err(r));
1.240 djm 1336: explicit_bzero(passphrase1, strlen(passphrase1));
1.227 djm 1337: free(passphrase1);
1.252 djm 1338: sshkey_free(private);
1.227 djm 1339: free(comment);
1.12 markus 1340: exit(1);
1341: }
1342: /* Destroy the passphrase and the copy of the key in memory. */
1.240 djm 1343: explicit_bzero(passphrase1, strlen(passphrase1));
1.227 djm 1344: free(passphrase1);
1.252 djm 1345: sshkey_free(private); /* Destroys contents */
1.227 djm 1346: free(comment);
1.1 deraadt 1347:
1.12 markus 1348: printf("Your identification has been saved with the new passphrase.\n");
1349: exit(0);
1.1 deraadt 1350: }
1351:
1.105 jakob 1352: /*
1353: * Print the SSHFP RR.
1354: */
1.138 jakob 1355: static int
1356: do_print_resource_record(struct passwd *pw, char *fname, char *hname)
1.105 jakob 1357: {
1.252 djm 1358: struct sshkey *public;
1.105 jakob 1359: char *comment = NULL;
1360: struct stat st;
1.252 djm 1361: int r;
1.105 jakob 1362:
1.138 jakob 1363: if (fname == NULL)
1.229 djm 1364: fatal("%s: no filename", __func__);
1.138 jakob 1365: if (stat(fname, &st) < 0) {
1366: if (errno == ENOENT)
1367: return 0;
1.269 djm 1368: fatal("%s: %s", fname, strerror(errno));
1.105 jakob 1369: }
1.269 djm 1370: if ((r = sshkey_load_public(fname, &public, &comment)) != 0)
1371: fatal("Failed to read v2 public key from \"%s\": %s.",
1.252 djm 1372: fname, ssh_err(r));
1373: export_dns_rr(hname, public, stdout, print_generic);
1374: sshkey_free(public);
1375: free(comment);
1376: return 1;
1.105 jakob 1377: }
1378:
1.13 deraadt 1379: /*
1380: * Change the comment of a private key file.
1381: */
1.63 itojun 1382: static void
1.2 provos 1383: do_change_comment(struct passwd *pw)
1.1 deraadt 1384: {
1.46 deraadt 1385: char new_comment[1024], *comment, *passphrase;
1.252 djm 1386: struct sshkey *private;
1387: struct sshkey *public;
1.12 markus 1388: struct stat st;
1389: FILE *f;
1.252 djm 1390: int r, fd;
1.12 markus 1391:
1392: if (!have_identity)
1393: ask_filename(pw, "Enter file in which the key is");
1.269 djm 1394: if (stat(identity_file, &st) < 0)
1395: fatal("%s: %s", identity_file, strerror(errno));
1.252 djm 1396: if ((r = sshkey_load_private(identity_file, "",
1397: &private, &comment)) == 0)
1398: passphrase = xstrdup("");
1.269 djm 1399: else if (r != SSH_ERR_KEY_WRONG_PASSPHRASE)
1400: fatal("Cannot load private key \"%s\": %s.",
1.252 djm 1401: identity_file, ssh_err(r));
1.269 djm 1402: else {
1.12 markus 1403: if (identity_passphrase)
1404: passphrase = xstrdup(identity_passphrase);
1405: else if (identity_new_passphrase)
1406: passphrase = xstrdup(identity_new_passphrase);
1407: else
1.65 markus 1408: passphrase = read_passphrase("Enter passphrase: ",
1409: RP_ALLOW_STDIN);
1.12 markus 1410: /* Try to load using the passphrase. */
1.252 djm 1411: if ((r = sshkey_load_private(identity_file, passphrase,
1412: &private, &comment)) != 0) {
1.240 djm 1413: explicit_bzero(passphrase, strlen(passphrase));
1.227 djm 1414: free(passphrase);
1.269 djm 1415: fatal("Cannot load private key \"%s\": %s.",
1.252 djm 1416: identity_file, ssh_err(r));
1.12 markus 1417: }
1418: }
1.283 halex 1419:
1420: if (private->type != KEY_RSA1 && private->type != KEY_ED25519 &&
1421: !use_new_format) {
1422: error("Comments are only supported for RSA1 or keys stored in "
1423: "the new format (-o).");
1.268 tobias 1424: explicit_bzero(passphrase, strlen(passphrase));
1.252 djm 1425: sshkey_free(private);
1.52 markus 1426: exit(1);
1.86 deraadt 1427: }
1.293 ! millert 1428: if (comment)
! 1429: printf("Key now has comment '%s'\n", comment);
! 1430: else
! 1431: printf("Key now has no comment\n");
1.12 markus 1432:
1433: if (identity_comment) {
1434: strlcpy(new_comment, identity_comment, sizeof(new_comment));
1435: } else {
1436: printf("Enter new comment: ");
1437: fflush(stdout);
1438: if (!fgets(new_comment, sizeof(new_comment), stdin)) {
1.240 djm 1439: explicit_bzero(passphrase, strlen(passphrase));
1.252 djm 1440: sshkey_free(private);
1.12 markus 1441: exit(1);
1442: }
1.162 gilles 1443: new_comment[strcspn(new_comment, "\n")] = '\0';
1.12 markus 1444: }
1445:
1446: /* Save the file using the new passphrase. */
1.252 djm 1447: if ((r = sshkey_save_private(private, identity_file, passphrase,
1448: new_comment, use_new_format, new_format_cipher, rounds)) != 0) {
1.269 djm 1449: error("Saving key \"%s\" failed: %s",
1.252 djm 1450: identity_file, ssh_err(r));
1.240 djm 1451: explicit_bzero(passphrase, strlen(passphrase));
1.227 djm 1452: free(passphrase);
1.252 djm 1453: sshkey_free(private);
1.227 djm 1454: free(comment);
1.12 markus 1455: exit(1);
1456: }
1.240 djm 1457: explicit_bzero(passphrase, strlen(passphrase));
1.227 djm 1458: free(passphrase);
1.252 djm 1459: if ((r = sshkey_from_private(private, &public)) != 0)
1460: fatal("key_from_private failed: %s", ssh_err(r));
1461: sshkey_free(private);
1.12 markus 1462:
1463: strlcat(identity_file, ".pub", sizeof(identity_file));
1.46 deraadt 1464: fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644);
1.269 djm 1465: if (fd == -1)
1466: fatal("Could not save your public key in %s", identity_file);
1.46 deraadt 1467: f = fdopen(fd, "w");
1.269 djm 1468: if (f == NULL)
1469: fatal("fdopen %s failed: %s", identity_file, strerror(errno));
1.252 djm 1470: if ((r = sshkey_write(public, f)) != 0)
1.269 djm 1471: fatal("write key failed: %s", ssh_err(r));
1.252 djm 1472: sshkey_free(public);
1.19 markus 1473: fprintf(f, " %s\n", new_comment);
1.12 markus 1474: fclose(f);
1.1 deraadt 1475:
1.227 djm 1476: free(comment);
1.1 deraadt 1477:
1.12 markus 1478: printf("The comment in your key file has been changed.\n");
1479: exit(0);
1.1 deraadt 1480: }
1481:
1.179 djm 1482: static void
1.252 djm 1483: add_flag_option(struct sshbuf *c, const char *name)
1.179 djm 1484: {
1.252 djm 1485: int r;
1486:
1.179 djm 1487: debug3("%s: %s", __func__, name);
1.252 djm 1488: if ((r = sshbuf_put_cstring(c, name)) != 0 ||
1489: (r = sshbuf_put_string(c, NULL, 0)) != 0)
1490: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.179 djm 1491: }
1492:
1493: static void
1.252 djm 1494: add_string_option(struct sshbuf *c, const char *name, const char *value)
1.179 djm 1495: {
1.252 djm 1496: struct sshbuf *b;
1497: int r;
1.179 djm 1498:
1499: debug3("%s: %s=%s", __func__, name, value);
1.252 djm 1500: if ((b = sshbuf_new()) == NULL)
1501: fatal("%s: sshbuf_new failed", __func__);
1502: if ((r = sshbuf_put_cstring(b, value)) != 0 ||
1503: (r = sshbuf_put_cstring(c, name)) != 0 ||
1504: (r = sshbuf_put_stringb(c, b)) != 0)
1505: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.179 djm 1506:
1.252 djm 1507: sshbuf_free(b);
1.179 djm 1508: }
1509:
1.190 djm 1510: #define OPTIONS_CRITICAL 1
1511: #define OPTIONS_EXTENSIONS 2
1.179 djm 1512: static void
1.252 djm 1513: prepare_options_buf(struct sshbuf *c, int which)
1.179 djm 1514: {
1.252 djm 1515: sshbuf_reset(c);
1.196 djm 1516: if ((which & OPTIONS_CRITICAL) != 0 &&
1517: certflags_command != NULL)
1518: add_string_option(c, "force-command", certflags_command);
1.190 djm 1519: if ((which & OPTIONS_EXTENSIONS) != 0 &&
1.210 djm 1520: (certflags_flags & CERTOPT_X_FWD) != 0)
1521: add_flag_option(c, "permit-X11-forwarding");
1522: if ((which & OPTIONS_EXTENSIONS) != 0 &&
1.190 djm 1523: (certflags_flags & CERTOPT_AGENT_FWD) != 0)
1.186 djm 1524: add_flag_option(c, "permit-agent-forwarding");
1.190 djm 1525: if ((which & OPTIONS_EXTENSIONS) != 0 &&
1526: (certflags_flags & CERTOPT_PORT_FWD) != 0)
1.186 djm 1527: add_flag_option(c, "permit-port-forwarding");
1.190 djm 1528: if ((which & OPTIONS_EXTENSIONS) != 0 &&
1529: (certflags_flags & CERTOPT_PTY) != 0)
1.186 djm 1530: add_flag_option(c, "permit-pty");
1.190 djm 1531: if ((which & OPTIONS_EXTENSIONS) != 0 &&
1532: (certflags_flags & CERTOPT_USER_RC) != 0)
1.186 djm 1533: add_flag_option(c, "permit-user-rc");
1.190 djm 1534: if ((which & OPTIONS_CRITICAL) != 0 &&
1535: certflags_src_addr != NULL)
1536: add_string_option(c, "source-address", certflags_src_addr);
1.179 djm 1537: }
1538:
1.252 djm 1539: static struct sshkey *
1.197 djm 1540: load_pkcs11_key(char *path)
1541: {
1542: #ifdef ENABLE_PKCS11
1.252 djm 1543: struct sshkey **keys = NULL, *public, *private = NULL;
1544: int r, i, nkeys;
1.197 djm 1545:
1.252 djm 1546: if ((r = sshkey_load_public(path, &public, NULL)) != 0)
1547: fatal("Couldn't load CA public key \"%s\": %s",
1548: path, ssh_err(r));
1.197 djm 1549:
1550: nkeys = pkcs11_add_provider(pkcs11provider, identity_passphrase, &keys);
1551: debug3("%s: %d keys", __func__, nkeys);
1552: if (nkeys <= 0)
1553: fatal("cannot read public key from pkcs11");
1554: for (i = 0; i < nkeys; i++) {
1.252 djm 1555: if (sshkey_equal_public(public, keys[i])) {
1.197 djm 1556: private = keys[i];
1557: continue;
1558: }
1.252 djm 1559: sshkey_free(keys[i]);
1.197 djm 1560: }
1.227 djm 1561: free(keys);
1.252 djm 1562: sshkey_free(public);
1.197 djm 1563: return private;
1564: #else
1565: fatal("no pkcs11 support");
1566: #endif /* ENABLE_PKCS11 */
1567: }
1568:
1.179 djm 1569: static void
1570: do_ca_sign(struct passwd *pw, int argc, char **argv)
1571: {
1.252 djm 1572: int r, i, fd;
1.179 djm 1573: u_int n;
1.252 djm 1574: struct sshkey *ca, *public;
1.281 djm 1575: char valid[64], *otmp, *tmp, *cp, *out, *comment, **plist = NULL;
1.179 djm 1576: FILE *f;
1.186 djm 1577:
1.246 markus 1578: #ifdef ENABLE_PKCS11
1.197 djm 1579: pkcs11_init(1);
1.246 markus 1580: #endif
1.197 djm 1581: tmp = tilde_expand_filename(ca_key_path, pw->pw_uid);
1582: if (pkcs11provider != NULL) {
1583: if ((ca = load_pkcs11_key(tmp)) == NULL)
1584: fatal("No PKCS#11 key matching %s found", ca_key_path);
1.252 djm 1585: } else
1586: ca = load_identity(tmp);
1.227 djm 1587: free(tmp);
1.197 djm 1588:
1.290 djm 1589: if (key_type_name != NULL &&
1590: sshkey_type_from_name(key_type_name) != ca->type) {
1591: fatal("CA key type %s doesn't match specified %s",
1592: sshkey_ssh_name(ca), key_type_name);
1593: }
1594:
1.179 djm 1595: for (i = 0; i < argc; i++) {
1596: /* Split list of principals */
1597: n = 0;
1598: if (cert_principals != NULL) {
1599: otmp = tmp = xstrdup(cert_principals);
1600: plist = NULL;
1601: for (; (cp = strsep(&tmp, ",")) != NULL; n++) {
1.270 deraadt 1602: plist = xreallocarray(plist, n + 1, sizeof(*plist));
1.179 djm 1603: if (*(plist[n] = xstrdup(cp)) == '\0')
1604: fatal("Empty principal name");
1605: }
1.227 djm 1606: free(otmp);
1.179 djm 1607: }
1608:
1609: tmp = tilde_expand_filename(argv[i], pw->pw_uid);
1.252 djm 1610: if ((r = sshkey_load_public(tmp, &public, &comment)) != 0)
1611: fatal("%s: unable to open \"%s\": %s",
1612: __func__, tmp, ssh_err(r));
1.200 djm 1613: if (public->type != KEY_RSA && public->type != KEY_DSA &&
1.238 markus 1614: public->type != KEY_ECDSA && public->type != KEY_ED25519)
1.179 djm 1615: fatal("%s: key \"%s\" type %s cannot be certified",
1.252 djm 1616: __func__, tmp, sshkey_type(public));
1.179 djm 1617:
1618: /* Prepare certificate to sign */
1.275 djm 1619: if ((r = sshkey_to_certified(public)) != 0)
1.252 djm 1620: fatal("Could not upgrade key %s to certificate: %s",
1621: tmp, ssh_err(r));
1.179 djm 1622: public->cert->type = cert_key_type;
1.186 djm 1623: public->cert->serial = (u_int64_t)cert_serial;
1.179 djm 1624: public->cert->key_id = xstrdup(cert_key_id);
1625: public->cert->nprincipals = n;
1626: public->cert->principals = plist;
1627: public->cert->valid_after = cert_valid_from;
1628: public->cert->valid_before = cert_valid_to;
1.275 djm 1629: prepare_options_buf(public->cert->critical, OPTIONS_CRITICAL);
1630: prepare_options_buf(public->cert->extensions,
1631: OPTIONS_EXTENSIONS);
1.252 djm 1632: if ((r = sshkey_from_private(ca,
1633: &public->cert->signature_key)) != 0)
1634: fatal("key_from_private (ca key): %s", ssh_err(r));
1.179 djm 1635:
1.290 djm 1636: if ((r = sshkey_certify(public, ca, key_type_name)) != 0)
1637: fatal("Couldn't certify key %s: %s", tmp, ssh_err(r));
1.179 djm 1638:
1639: if ((cp = strrchr(tmp, '.')) != NULL && strcmp(cp, ".pub") == 0)
1640: *cp = '\0';
1641: xasprintf(&out, "%s-cert.pub", tmp);
1.227 djm 1642: free(tmp);
1.179 djm 1643:
1644: if ((fd = open(out, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1)
1645: fatal("Could not open \"%s\" for writing: %s", out,
1646: strerror(errno));
1647: if ((f = fdopen(fd, "w")) == NULL)
1648: fatal("%s: fdopen: %s", __func__, strerror(errno));
1.252 djm 1649: if ((r = sshkey_write(public, f)) != 0)
1650: fatal("Could not write certified key to %s: %s",
1651: out, ssh_err(r));
1.179 djm 1652: fprintf(f, " %s\n", comment);
1653: fclose(f);
1654:
1.186 djm 1655: if (!quiet) {
1.282 djm 1656: sshkey_format_cert_validity(public->cert,
1.281 djm 1657: valid, sizeof(valid));
1.186 djm 1658: logit("Signed %s key %s: id \"%s\" serial %llu%s%s "
1.282 djm 1659: "valid %s", sshkey_cert_type(public),
1.205 djm 1660: out, public->cert->key_id,
1661: (unsigned long long)public->cert->serial,
1.179 djm 1662: cert_principals != NULL ? " for " : "",
1663: cert_principals != NULL ? cert_principals : "",
1.281 djm 1664: valid);
1.186 djm 1665: }
1.179 djm 1666:
1.252 djm 1667: sshkey_free(public);
1.227 djm 1668: free(out);
1.179 djm 1669: }
1.246 markus 1670: #ifdef ENABLE_PKCS11
1.197 djm 1671: pkcs11_terminate();
1.246 markus 1672: #endif
1.179 djm 1673: exit(0);
1674: }
1675:
1676: static u_int64_t
1677: parse_relative_time(const char *s, time_t now)
1678: {
1679: int64_t mul, secs;
1680:
1681: mul = *s == '-' ? -1 : 1;
1682:
1683: if ((secs = convtime(s + 1)) == -1)
1684: fatal("Invalid relative certificate time %s", s);
1685: if (mul == -1 && secs > now)
1686: fatal("Certificate time %s cannot be represented", s);
1687: return now + (u_int64_t)(secs * mul);
1688: }
1689:
1690: static u_int64_t
1691: parse_absolute_time(const char *s)
1692: {
1693: struct tm tm;
1694: time_t tt;
1.180 djm 1695: char buf[32], *fmt;
1.179 djm 1696:
1.180 djm 1697: /*
1.282 djm 1698: * POSIX strptime says "The application shall ensure that there
1.180 djm 1699: * is white-space or other non-alphanumeric characters between
1700: * any two conversion specifications" so arrange things this way.
1701: */
1702: switch (strlen(s)) {
1703: case 8:
1.184 djm 1704: fmt = "%Y-%m-%d";
1705: snprintf(buf, sizeof(buf), "%.4s-%.2s-%.2s", s, s + 4, s + 6);
1.180 djm 1706: break;
1707: case 14:
1.184 djm 1708: fmt = "%Y-%m-%dT%H:%M:%S";
1709: snprintf(buf, sizeof(buf), "%.4s-%.2s-%.2sT%.2s:%.2s:%.2s",
1.180 djm 1710: s, s + 4, s + 6, s + 8, s + 10, s + 12);
1711: break;
1712: default:
1.179 djm 1713: fatal("Invalid certificate time format %s", s);
1.180 djm 1714: }
1.179 djm 1715:
1.239 tedu 1716: memset(&tm, 0, sizeof(tm));
1.180 djm 1717: if (strptime(buf, fmt, &tm) == NULL)
1.179 djm 1718: fatal("Invalid certificate time %s", s);
1719: if ((tt = mktime(&tm)) < 0)
1720: fatal("Certificate time %s cannot be represented", s);
1721: return (u_int64_t)tt;
1722: }
1723:
1724: static void
1725: parse_cert_times(char *timespec)
1726: {
1727: char *from, *to;
1728: time_t now = time(NULL);
1729: int64_t secs;
1730:
1731: /* +timespec relative to now */
1732: if (*timespec == '+' && strchr(timespec, ':') == NULL) {
1733: if ((secs = convtime(timespec + 1)) == -1)
1734: fatal("Invalid relative certificate life %s", timespec);
1735: cert_valid_to = now + secs;
1736: /*
1737: * Backdate certificate one minute to avoid problems on hosts
1738: * with poorly-synchronised clocks.
1739: */
1740: cert_valid_from = ((now - 59)/ 60) * 60;
1741: return;
1742: }
1743:
1744: /*
1745: * from:to, where
1746: * from := [+-]timespec | YYYYMMDD | YYYYMMDDHHMMSS
1747: * to := [+-]timespec | YYYYMMDD | YYYYMMDDHHMMSS
1748: */
1749: from = xstrdup(timespec);
1750: to = strchr(from, ':');
1751: if (to == NULL || from == to || *(to + 1) == '\0')
1.181 djm 1752: fatal("Invalid certificate life specification %s", timespec);
1.179 djm 1753: *to++ = '\0';
1754:
1755: if (*from == '-' || *from == '+')
1756: cert_valid_from = parse_relative_time(from, now);
1757: else
1758: cert_valid_from = parse_absolute_time(from);
1759:
1760: if (*to == '-' || *to == '+')
1.235 djm 1761: cert_valid_to = parse_relative_time(to, now);
1.179 djm 1762: else
1763: cert_valid_to = parse_absolute_time(to);
1764:
1765: if (cert_valid_to <= cert_valid_from)
1766: fatal("Empty certificate validity interval");
1.227 djm 1767: free(from);
1.179 djm 1768: }
1769:
1770: static void
1.186 djm 1771: add_cert_option(char *opt)
1.179 djm 1772: {
1773: char *val;
1774:
1.208 stevesk 1775: if (strcasecmp(opt, "clear") == 0)
1.190 djm 1776: certflags_flags = 0;
1.179 djm 1777: else if (strcasecmp(opt, "no-x11-forwarding") == 0)
1.190 djm 1778: certflags_flags &= ~CERTOPT_X_FWD;
1.179 djm 1779: else if (strcasecmp(opt, "permit-x11-forwarding") == 0)
1.190 djm 1780: certflags_flags |= CERTOPT_X_FWD;
1.179 djm 1781: else if (strcasecmp(opt, "no-agent-forwarding") == 0)
1.190 djm 1782: certflags_flags &= ~CERTOPT_AGENT_FWD;
1.179 djm 1783: else if (strcasecmp(opt, "permit-agent-forwarding") == 0)
1.190 djm 1784: certflags_flags |= CERTOPT_AGENT_FWD;
1.179 djm 1785: else if (strcasecmp(opt, "no-port-forwarding") == 0)
1.190 djm 1786: certflags_flags &= ~CERTOPT_PORT_FWD;
1.179 djm 1787: else if (strcasecmp(opt, "permit-port-forwarding") == 0)
1.190 djm 1788: certflags_flags |= CERTOPT_PORT_FWD;
1.179 djm 1789: else if (strcasecmp(opt, "no-pty") == 0)
1.190 djm 1790: certflags_flags &= ~CERTOPT_PTY;
1.179 djm 1791: else if (strcasecmp(opt, "permit-pty") == 0)
1.190 djm 1792: certflags_flags |= CERTOPT_PTY;
1.179 djm 1793: else if (strcasecmp(opt, "no-user-rc") == 0)
1.190 djm 1794: certflags_flags &= ~CERTOPT_USER_RC;
1.179 djm 1795: else if (strcasecmp(opt, "permit-user-rc") == 0)
1.190 djm 1796: certflags_flags |= CERTOPT_USER_RC;
1.179 djm 1797: else if (strncasecmp(opt, "force-command=", 14) == 0) {
1798: val = opt + 14;
1799: if (*val == '\0')
1.186 djm 1800: fatal("Empty force-command option");
1.190 djm 1801: if (certflags_command != NULL)
1.179 djm 1802: fatal("force-command already specified");
1.190 djm 1803: certflags_command = xstrdup(val);
1.179 djm 1804: } else if (strncasecmp(opt, "source-address=", 15) == 0) {
1805: val = opt + 15;
1806: if (*val == '\0')
1.186 djm 1807: fatal("Empty source-address option");
1.190 djm 1808: if (certflags_src_addr != NULL)
1.179 djm 1809: fatal("source-address already specified");
1810: if (addr_match_cidr_list(NULL, val) != 0)
1811: fatal("Invalid source-address list");
1.190 djm 1812: certflags_src_addr = xstrdup(val);
1.179 djm 1813: } else
1.186 djm 1814: fatal("Unsupported certificate option \"%s\"", opt);
1.179 djm 1815: }
1816:
1.63 itojun 1817: static void
1.275 djm 1818: show_options(struct sshbuf *optbuf, int in_critical)
1.192 djm 1819: {
1.245 djm 1820: char *name, *arg;
1.252 djm 1821: struct sshbuf *options, *option = NULL;
1822: int r;
1823:
1824: if ((options = sshbuf_fromb(optbuf)) == NULL)
1825: fatal("%s: sshbuf_fromb failed", __func__);
1826: while (sshbuf_len(options) != 0) {
1827: sshbuf_free(option);
1828: option = NULL;
1829: if ((r = sshbuf_get_cstring(options, &name, NULL)) != 0 ||
1830: (r = sshbuf_froms(options, &option)) != 0)
1831: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.192 djm 1832: printf(" %s", name);
1.275 djm 1833: if (!in_critical &&
1.192 djm 1834: (strcmp(name, "permit-X11-forwarding") == 0 ||
1835: strcmp(name, "permit-agent-forwarding") == 0 ||
1836: strcmp(name, "permit-port-forwarding") == 0 ||
1837: strcmp(name, "permit-pty") == 0 ||
1838: strcmp(name, "permit-user-rc") == 0))
1839: printf("\n");
1.275 djm 1840: else if (in_critical &&
1.192 djm 1841: (strcmp(name, "force-command") == 0 ||
1842: strcmp(name, "source-address") == 0)) {
1.252 djm 1843: if ((r = sshbuf_get_cstring(option, &arg, NULL)) != 0)
1844: fatal("%s: buffer error: %s",
1845: __func__, ssh_err(r));
1.245 djm 1846: printf(" %s\n", arg);
1847: free(arg);
1.192 djm 1848: } else {
1.252 djm 1849: printf(" UNKNOWN OPTION (len %zu)\n",
1850: sshbuf_len(option));
1851: sshbuf_reset(option);
1.192 djm 1852: }
1.227 djm 1853: free(name);
1.252 djm 1854: if (sshbuf_len(option) != 0)
1.192 djm 1855: fatal("Option corrupt: extra data at end");
1856: }
1.252 djm 1857: sshbuf_free(option);
1858: sshbuf_free(options);
1.192 djm 1859: }
1860:
1861: static void
1.278 djm 1862: print_cert(struct sshkey *key)
1.182 djm 1863: {
1.281 djm 1864: char valid[64], *key_fp, *ca_fp;
1.275 djm 1865: u_int i;
1.186 djm 1866:
1.252 djm 1867: key_fp = sshkey_fingerprint(key, fingerprint_hash, SSH_FP_DEFAULT);
1868: ca_fp = sshkey_fingerprint(key->cert->signature_key,
1.251 djm 1869: fingerprint_hash, SSH_FP_DEFAULT);
1.259 djm 1870: if (key_fp == NULL || ca_fp == NULL)
1871: fatal("%s: sshkey_fingerprint fail", __func__);
1.281 djm 1872: sshkey_format_cert_validity(key->cert, valid, sizeof(valid));
1.182 djm 1873:
1.252 djm 1874: printf(" Type: %s %s certificate\n", sshkey_ssh_name(key),
1875: sshkey_cert_type(key));
1876: printf(" Public key: %s %s\n", sshkey_type(key), key_fp);
1.186 djm 1877: printf(" Signing CA: %s %s\n",
1.252 djm 1878: sshkey_type(key->cert->signature_key), ca_fp);
1.186 djm 1879: printf(" Key ID: \"%s\"\n", key->cert->key_id);
1.275 djm 1880: printf(" Serial: %llu\n", (unsigned long long)key->cert->serial);
1.281 djm 1881: printf(" Valid: %s\n", valid);
1.182 djm 1882: printf(" Principals: ");
1883: if (key->cert->nprincipals == 0)
1884: printf("(none)\n");
1885: else {
1886: for (i = 0; i < key->cert->nprincipals; i++)
1887: printf("\n %s",
1888: key->cert->principals[i]);
1889: printf("\n");
1890: }
1.186 djm 1891: printf(" Critical Options: ");
1.252 djm 1892: if (sshbuf_len(key->cert->critical) == 0)
1.182 djm 1893: printf("(none)\n");
1894: else {
1895: printf("\n");
1.275 djm 1896: show_options(key->cert->critical, 1);
1.186 djm 1897: }
1.275 djm 1898: printf(" Extensions: ");
1899: if (sshbuf_len(key->cert->extensions) == 0)
1900: printf("(none)\n");
1901: else {
1902: printf("\n");
1903: show_options(key->cert->extensions, 0);
1.182 djm 1904: }
1.278 djm 1905: }
1906:
1907: static void
1908: do_show_cert(struct passwd *pw)
1909: {
1910: struct sshkey *key = NULL;
1911: struct stat st;
1912: int r, is_stdin = 0, ok = 0;
1913: FILE *f;
1.287 djm 1914: char *cp, line[SSH_MAX_PUBKEY_BYTES];
1.278 djm 1915: const char *path;
1.289 djm 1916: u_long lnum = 0;
1.278 djm 1917:
1918: if (!have_identity)
1919: ask_filename(pw, "Enter file in which the key is");
1920: if (strcmp(identity_file, "-") != 0 && stat(identity_file, &st) < 0)
1921: fatal("%s: %s: %s", __progname, identity_file, strerror(errno));
1922:
1923: path = identity_file;
1924: if (strcmp(path, "-") == 0) {
1925: f = stdin;
1926: path = "(stdin)";
1927: is_stdin = 1;
1928: } else if ((f = fopen(identity_file, "r")) == NULL)
1929: fatal("fopen %s: %s", identity_file, strerror(errno));
1930:
1931: while (read_keyfile_line(f, path, line, sizeof(line), &lnum) == 0) {
1932: sshkey_free(key);
1933: key = NULL;
1934: /* Trim leading space and comments */
1935: cp = line + strspn(line, " \t");
1936: if (*cp == '#' || *cp == '\0')
1937: continue;
1938: if ((key = sshkey_new(KEY_UNSPEC)) == NULL)
1939: fatal("key_new");
1940: if ((r = sshkey_read(key, &cp)) != 0) {
1941: error("%s:%lu: invalid key: %s", path,
1942: lnum, ssh_err(r));
1943: continue;
1944: }
1945: if (!sshkey_is_cert(key)) {
1946: error("%s:%lu is not a certificate", path, lnum);
1947: continue;
1948: }
1949: ok = 1;
1950: if (!is_stdin && lnum == 1)
1951: printf("%s:\n", path);
1952: else
1953: printf("%s:%lu:\n", path, lnum);
1954: print_cert(key);
1955: }
1956: sshkey_free(key);
1957: fclose(f);
1958: exit(ok ? 0 : 1);
1.182 djm 1959: }
1960:
1.246 markus 1961: #ifdef WITH_OPENSSL
1.182 djm 1962: static void
1.223 djm 1963: load_krl(const char *path, struct ssh_krl **krlp)
1964: {
1.252 djm 1965: struct sshbuf *krlbuf;
1966: int r, fd;
1.223 djm 1967:
1.252 djm 1968: if ((krlbuf = sshbuf_new()) == NULL)
1969: fatal("sshbuf_new failed");
1.223 djm 1970: if ((fd = open(path, O_RDONLY)) == -1)
1971: fatal("open %s: %s", path, strerror(errno));
1.252 djm 1972: if ((r = sshkey_load_file(fd, krlbuf)) != 0)
1973: fatal("Unable to load KRL: %s", ssh_err(r));
1.223 djm 1974: close(fd);
1975: /* XXX check sigs */
1.252 djm 1976: if ((r = ssh_krl_from_blob(krlbuf, krlp, NULL, 0)) != 0 ||
1.223 djm 1977: *krlp == NULL)
1.252 djm 1978: fatal("Invalid KRL file: %s", ssh_err(r));
1979: sshbuf_free(krlbuf);
1.223 djm 1980: }
1981:
1982: static void
1.261 djm 1983: update_krl_from_file(struct passwd *pw, const char *file, int wild_ca,
1.252 djm 1984: const struct sshkey *ca, struct ssh_krl *krl)
1.223 djm 1985: {
1.252 djm 1986: struct sshkey *key = NULL;
1.223 djm 1987: u_long lnum = 0;
1988: char *path, *cp, *ep, line[SSH_MAX_PUBKEY_BYTES];
1989: unsigned long long serial, serial2;
1990: int i, was_explicit_key, was_sha1, r;
1991: FILE *krl_spec;
1992:
1993: path = tilde_expand_filename(file, pw->pw_uid);
1994: if (strcmp(path, "-") == 0) {
1995: krl_spec = stdin;
1996: free(path);
1997: path = xstrdup("(standard input)");
1998: } else if ((krl_spec = fopen(path, "r")) == NULL)
1999: fatal("fopen %s: %s", path, strerror(errno));
2000:
2001: if (!quiet)
2002: printf("Revoking from %s\n", path);
2003: while (read_keyfile_line(krl_spec, path, line, sizeof(line),
2004: &lnum) == 0) {
2005: was_explicit_key = was_sha1 = 0;
2006: cp = line + strspn(line, " \t");
2007: /* Trim trailing space, comments and strip \n */
2008: for (i = 0, r = -1; cp[i] != '\0'; i++) {
2009: if (cp[i] == '#' || cp[i] == '\n') {
2010: cp[i] = '\0';
2011: break;
2012: }
2013: if (cp[i] == ' ' || cp[i] == '\t') {
2014: /* Remember the start of a span of whitespace */
2015: if (r == -1)
2016: r = i;
2017: } else
2018: r = -1;
2019: }
2020: if (r != -1)
2021: cp[r] = '\0';
2022: if (*cp == '\0')
2023: continue;
2024: if (strncasecmp(cp, "serial:", 7) == 0) {
1.261 djm 2025: if (ca == NULL && !wild_ca) {
1.231 djm 2026: fatal("revoking certificates by serial number "
1.223 djm 2027: "requires specification of a CA key");
2028: }
2029: cp += 7;
2030: cp = cp + strspn(cp, " \t");
2031: errno = 0;
2032: serial = strtoull(cp, &ep, 0);
2033: if (*cp == '\0' || (*ep != '\0' && *ep != '-'))
2034: fatal("%s:%lu: invalid serial \"%s\"",
2035: path, lnum, cp);
2036: if (errno == ERANGE && serial == ULLONG_MAX)
2037: fatal("%s:%lu: serial out of range",
2038: path, lnum);
2039: serial2 = serial;
2040: if (*ep == '-') {
2041: cp = ep + 1;
2042: errno = 0;
2043: serial2 = strtoull(cp, &ep, 0);
2044: if (*cp == '\0' || *ep != '\0')
2045: fatal("%s:%lu: invalid serial \"%s\"",
2046: path, lnum, cp);
2047: if (errno == ERANGE && serial2 == ULLONG_MAX)
2048: fatal("%s:%lu: serial out of range",
2049: path, lnum);
2050: if (serial2 <= serial)
2051: fatal("%s:%lu: invalid serial range "
2052: "%llu:%llu", path, lnum,
2053: (unsigned long long)serial,
2054: (unsigned long long)serial2);
2055: }
2056: if (ssh_krl_revoke_cert_by_serial_range(krl,
2057: ca, serial, serial2) != 0) {
2058: fatal("%s: revoke serial failed",
2059: __func__);
2060: }
2061: } else if (strncasecmp(cp, "id:", 3) == 0) {
1.261 djm 2062: if (ca == NULL && !wild_ca) {
1.232 djm 2063: fatal("revoking certificates by key ID "
1.223 djm 2064: "requires specification of a CA key");
2065: }
2066: cp += 3;
2067: cp = cp + strspn(cp, " \t");
2068: if (ssh_krl_revoke_cert_by_key_id(krl, ca, cp) != 0)
2069: fatal("%s: revoke key ID failed", __func__);
2070: } else {
2071: if (strncasecmp(cp, "key:", 4) == 0) {
2072: cp += 4;
2073: cp = cp + strspn(cp, " \t");
2074: was_explicit_key = 1;
2075: } else if (strncasecmp(cp, "sha1:", 5) == 0) {
2076: cp += 5;
2077: cp = cp + strspn(cp, " \t");
2078: was_sha1 = 1;
2079: } else {
2080: /*
2081: * Just try to process the line as a key.
2082: * Parsing will fail if it isn't.
2083: */
2084: }
1.252 djm 2085: if ((key = sshkey_new(KEY_UNSPEC)) == NULL)
1.223 djm 2086: fatal("key_new");
1.252 djm 2087: if ((r = sshkey_read(key, &cp)) != 0)
2088: fatal("%s:%lu: invalid key: %s",
2089: path, lnum, ssh_err(r));
1.223 djm 2090: if (was_explicit_key)
2091: r = ssh_krl_revoke_key_explicit(krl, key);
2092: else if (was_sha1)
2093: r = ssh_krl_revoke_key_sha1(krl, key);
2094: else
2095: r = ssh_krl_revoke_key(krl, key);
2096: if (r != 0)
1.252 djm 2097: fatal("%s: revoke key failed: %s",
2098: __func__, ssh_err(r));
2099: sshkey_free(key);
1.223 djm 2100: }
2101: }
2102: if (strcmp(path, "-") != 0)
2103: fclose(krl_spec);
1.226 djm 2104: free(path);
1.223 djm 2105: }
2106:
2107: static void
2108: do_gen_krl(struct passwd *pw, int updating, int argc, char **argv)
2109: {
2110: struct ssh_krl *krl;
2111: struct stat sb;
1.252 djm 2112: struct sshkey *ca = NULL;
1.261 djm 2113: int fd, i, r, wild_ca = 0;
1.223 djm 2114: char *tmp;
1.252 djm 2115: struct sshbuf *kbuf;
1.223 djm 2116:
2117: if (*identity_file == '\0')
2118: fatal("KRL generation requires an output file");
2119: if (stat(identity_file, &sb) == -1) {
2120: if (errno != ENOENT)
2121: fatal("Cannot access KRL \"%s\": %s",
2122: identity_file, strerror(errno));
2123: if (updating)
2124: fatal("KRL \"%s\" does not exist", identity_file);
2125: }
2126: if (ca_key_path != NULL) {
1.261 djm 2127: if (strcasecmp(ca_key_path, "none") == 0)
2128: wild_ca = 1;
2129: else {
2130: tmp = tilde_expand_filename(ca_key_path, pw->pw_uid);
2131: if ((r = sshkey_load_public(tmp, &ca, NULL)) != 0)
2132: fatal("Cannot load CA public key %s: %s",
2133: tmp, ssh_err(r));
2134: free(tmp);
2135: }
1.223 djm 2136: }
2137:
2138: if (updating)
2139: load_krl(identity_file, &krl);
2140: else if ((krl = ssh_krl_init()) == NULL)
2141: fatal("couldn't create KRL");
2142:
2143: if (cert_serial != 0)
2144: ssh_krl_set_version(krl, cert_serial);
2145: if (identity_comment != NULL)
2146: ssh_krl_set_comment(krl, identity_comment);
2147:
2148: for (i = 0; i < argc; i++)
1.261 djm 2149: update_krl_from_file(pw, argv[i], wild_ca, ca, krl);
1.223 djm 2150:
1.252 djm 2151: if ((kbuf = sshbuf_new()) == NULL)
2152: fatal("sshbuf_new failed");
2153: if (ssh_krl_to_blob(krl, kbuf, NULL, 0) != 0)
1.223 djm 2154: fatal("Couldn't generate KRL");
2155: if ((fd = open(identity_file, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1)
2156: fatal("open %s: %s", identity_file, strerror(errno));
1.252 djm 2157: if (atomicio(vwrite, fd, (void *)sshbuf_ptr(kbuf), sshbuf_len(kbuf)) !=
2158: sshbuf_len(kbuf))
1.223 djm 2159: fatal("write %s: %s", identity_file, strerror(errno));
2160: close(fd);
1.252 djm 2161: sshbuf_free(kbuf);
1.223 djm 2162: ssh_krl_free(krl);
1.286 mmcc 2163: sshkey_free(ca);
1.223 djm 2164: }
2165:
2166: static void
2167: do_check_krl(struct passwd *pw, int argc, char **argv)
2168: {
2169: int i, r, ret = 0;
2170: char *comment;
2171: struct ssh_krl *krl;
1.252 djm 2172: struct sshkey *k;
1.223 djm 2173:
2174: if (*identity_file == '\0')
2175: fatal("KRL checking requires an input file");
2176: load_krl(identity_file, &krl);
2177: for (i = 0; i < argc; i++) {
1.252 djm 2178: if ((r = sshkey_load_public(argv[i], &k, &comment)) != 0)
2179: fatal("Cannot load public key %s: %s",
2180: argv[i], ssh_err(r));
1.223 djm 2181: r = ssh_krl_check_key(krl, k);
2182: printf("%s%s%s%s: %s\n", argv[i],
2183: *comment ? " (" : "", comment, *comment ? ")" : "",
2184: r == 0 ? "ok" : "REVOKED");
2185: if (r != 0)
2186: ret = 1;
1.252 djm 2187: sshkey_free(k);
1.223 djm 2188: free(comment);
2189: }
2190: ssh_krl_free(krl);
2191: exit(ret);
2192: }
1.246 markus 2193: #endif
1.223 djm 2194:
2195: static void
1.10 markus 2196: usage(void)
2197: {
1.243 deraadt 2198: fprintf(stderr,
2199: "usage: ssh-keygen [-q] [-b bits] [-t dsa | ecdsa | ed25519 | rsa | rsa1]\n"
2200: " [-N new_passphrase] [-C comment] [-f output_keyfile]\n"
2201: " ssh-keygen -p [-P old_passphrase] [-N new_passphrase] [-f keyfile]\n"
2202: " ssh-keygen -i [-m key_format] [-f input_keyfile]\n"
2203: " ssh-keygen -e [-m key_format] [-f input_keyfile]\n"
2204: " ssh-keygen -y [-f input_keyfile]\n"
2205: " ssh-keygen -c [-P passphrase] [-C comment] [-f keyfile]\n"
1.265 naddy 2206: " ssh-keygen -l [-v] [-E fingerprint_hash] [-f input_keyfile]\n"
1.243 deraadt 2207: " ssh-keygen -B [-f input_keyfile]\n");
1.177 markus 2208: #ifdef ENABLE_PKCS11
1.243 deraadt 2209: fprintf(stderr,
2210: " ssh-keygen -D pkcs11\n");
1.177 markus 2211: #endif
1.243 deraadt 2212: fprintf(stderr,
2213: " ssh-keygen -F hostname [-f known_hosts_file] [-l]\n"
2214: " ssh-keygen -H [-f known_hosts_file]\n"
2215: " ssh-keygen -R hostname [-f known_hosts_file]\n"
2216: " ssh-keygen -r hostname [-f input_keyfile] [-g]\n"
1.274 djm 2217: #ifdef WITH_OPENSSL
1.243 deraadt 2218: " ssh-keygen -G output_file [-v] [-b bits] [-M memory] [-S start_point]\n"
2219: " ssh-keygen -T output_file -f input_file [-v] [-a rounds] [-J num_lines]\n"
2220: " [-j start_line] [-K checkpt] [-W generator]\n"
1.274 djm 2221: #endif
1.243 deraadt 2222: " ssh-keygen -s ca_key -I certificate_identity [-h] [-n principals]\n"
2223: " [-O option] [-V validity_interval] [-z serial_number] file ...\n"
2224: " ssh-keygen -L [-f input_keyfile]\n"
2225: " ssh-keygen -A\n"
2226: " ssh-keygen -k -f krl_file [-u] [-s ca_public] [-z version_number]\n"
2227: " file ...\n"
2228: " ssh-keygen -Q -f krl_file file ...\n");
1.12 markus 2229: exit(1);
1.10 markus 2230: }
2231:
1.13 deraadt 2232: /*
2233: * Main program for key management.
2234: */
1.2 provos 2235: int
1.156 deraadt 2236: main(int argc, char **argv)
1.1 deraadt 2237: {
1.253 deraadt 2238: char dotsshdir[PATH_MAX], comment[1024], *passphrase1, *passphrase2;
1.274 djm 2239: char *rr_hostname = NULL, *ep, *fp, *ra;
1.252 djm 2240: struct sshkey *private, *public;
1.12 markus 2241: struct passwd *pw;
2242: struct stat st;
1.252 djm 2243: int r, opt, type, fd;
1.274 djm 2244: int gen_all_hostkeys = 0, gen_krl = 0, update_krl = 0, check_krl = 0;
2245: FILE *f;
2246: const char *errstr;
2247: #ifdef WITH_OPENSSL
2248: /* Moduli generation/screening */
2249: char out_file[PATH_MAX], *checkpoint = NULL;
1.237 markus 2250: u_int32_t memory = 0, generator_wanted = 0;
1.107 djm 2251: int do_gen_candidates = 0, do_screen_candidates = 0;
1.215 dtucker 2252: unsigned long start_lineno = 0, lines_to_process = 0;
1.107 djm 2253: BIGNUM *start = NULL;
1.274 djm 2254: #endif
1.33 markus 2255:
1.12 markus 2256: extern int optind;
2257: extern char *optarg;
1.129 djm 2258:
1.288 dtucker 2259: ssh_malloc_init(); /* must be called before any mallocs */
1.129 djm 2260: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
2261: sanitise_stdfd();
1.12 markus 2262:
1.201 djm 2263: OpenSSL_add_all_algorithms();
1.156 deraadt 2264: log_init(argv[0], SYSLOG_LEVEL_INFO, SYSLOG_FACILITY_USER, 1);
1.19 markus 2265:
1.14 markus 2266: /* we need this for the home * directory. */
1.12 markus 2267: pw = getpwuid(getuid());
1.269 djm 2268: if (!pw)
2269: fatal("No user exists for uid %lu", (u_long)getuid());
2270: if (gethostname(hostname, sizeof(hostname)) < 0)
2271: fatal("gethostname: %s", strerror(errno));
1.14 markus 2272:
1.251 djm 2273: /* Remaining characters: UYdw */
1.237 markus 2274: while ((opt = getopt(argc, argv, "ABHLQXceghiklopquvxy"
1.251 djm 2275: "C:D:E:F:G:I:J:K:M:N:O:P:R:S:T:V:W:Z:"
2276: "a:b:f:g:j:m:n:r:s:t:z:")) != -1) {
1.12 markus 2277: switch (opt) {
1.206 stevesk 2278: case 'A':
2279: gen_all_hostkeys = 1;
2280: break;
1.12 markus 2281: case 'b':
1.202 markus 2282: bits = (u_int32_t)strtonum(optarg, 256, 32768, &errstr);
1.125 avsm 2283: if (errstr)
2284: fatal("Bits has bad value %s (%s)",
2285: optarg, errstr);
1.12 markus 2286: break;
1.251 djm 2287: case 'E':
2288: fingerprint_hash = ssh_digest_alg_by_name(optarg);
2289: if (fingerprint_hash == -1)
2290: fatal("Invalid hash algorithm \"%s\"", optarg);
2291: break;
1.119 djm 2292: case 'F':
2293: find_host = 1;
2294: rr_hostname = optarg;
2295: break;
2296: case 'H':
2297: hash_hosts = 1;
2298: break;
1.179 djm 2299: case 'I':
2300: cert_key_id = optarg;
2301: break;
1.119 djm 2302: case 'R':
2303: delete_host = 1;
2304: rr_hostname = optarg;
2305: break;
1.182 djm 2306: case 'L':
2307: show_cert = 1;
2308: break;
1.12 markus 2309: case 'l':
2310: print_fingerprint = 1;
2311: break;
1.49 markus 2312: case 'B':
2313: print_bubblebabble = 1;
2314: break;
1.193 djm 2315: case 'm':
2316: if (strcasecmp(optarg, "RFC4716") == 0 ||
2317: strcasecmp(optarg, "ssh2") == 0) {
2318: convert_format = FMT_RFC4716;
2319: break;
2320: }
2321: if (strcasecmp(optarg, "PKCS8") == 0) {
2322: convert_format = FMT_PKCS8;
2323: break;
2324: }
2325: if (strcasecmp(optarg, "PEM") == 0) {
2326: convert_format = FMT_PEM;
2327: break;
2328: }
2329: fatal("Unsupported conversion format \"%s\"", optarg);
1.179 djm 2330: case 'n':
2331: cert_principals = optarg;
2332: break;
1.237 markus 2333: case 'o':
2334: use_new_format = 1;
2335: break;
1.12 markus 2336: case 'p':
2337: change_passphrase = 1;
2338: break;
2339: case 'c':
2340: change_comment = 1;
2341: break;
2342: case 'f':
1.274 djm 2343: if (strlcpy(identity_file, optarg,
2344: sizeof(identity_file)) >= sizeof(identity_file))
1.124 avsm 2345: fatal("Identity filename too long");
1.12 markus 2346: have_identity = 1;
2347: break;
1.105 jakob 2348: case 'g':
2349: print_generic = 1;
2350: break;
1.12 markus 2351: case 'P':
2352: identity_passphrase = optarg;
2353: break;
2354: case 'N':
2355: identity_new_passphrase = optarg;
2356: break;
1.223 djm 2357: case 'Q':
2358: check_krl = 1;
2359: break;
1.179 djm 2360: case 'O':
1.186 djm 2361: add_cert_option(optarg);
1.179 djm 2362: break;
1.237 markus 2363: case 'Z':
2364: new_format_cipher = optarg;
2365: break;
1.12 markus 2366: case 'C':
2367: identity_comment = optarg;
2368: break;
2369: case 'q':
2370: quiet = 1;
1.20 deraadt 2371: break;
1.57 markus 2372: case 'e':
1.19 markus 2373: case 'x':
1.57 markus 2374: /* export key */
1.193 djm 2375: convert_to = 1;
1.19 markus 2376: break;
1.179 djm 2377: case 'h':
2378: cert_key_type = SSH2_CERT_TYPE_HOST;
1.190 djm 2379: certflags_flags = 0;
1.179 djm 2380: break;
1.223 djm 2381: case 'k':
2382: gen_krl = 1;
2383: break;
1.57 markus 2384: case 'i':
1.19 markus 2385: case 'X':
1.57 markus 2386: /* import key */
1.193 djm 2387: convert_from = 1;
1.19 markus 2388: break;
2389: case 'y':
2390: print_public = 1;
2391: break;
1.179 djm 2392: case 's':
2393: ca_key_path = optarg;
2394: break;
1.33 markus 2395: case 't':
2396: key_type_name = optarg;
2397: break;
1.75 markus 2398: case 'D':
1.177 markus 2399: pkcs11provider = optarg;
1.66 markus 2400: break;
1.223 djm 2401: case 'u':
2402: update_krl = 1;
2403: break;
1.113 djm 2404: case 'v':
2405: if (log_level == SYSLOG_LEVEL_INFO)
2406: log_level = SYSLOG_LEVEL_DEBUG1;
2407: else {
1.117 deraadt 2408: if (log_level >= SYSLOG_LEVEL_DEBUG1 &&
1.113 djm 2409: log_level < SYSLOG_LEVEL_DEBUG3)
2410: log_level++;
2411: }
2412: break;
1.105 jakob 2413: case 'r':
1.119 djm 2414: rr_hostname = optarg;
1.105 jakob 2415: break;
1.107 djm 2416: case 'a':
1.237 markus 2417: rounds = (int)strtonum(optarg, 1, INT_MAX, &errstr);
1.124 avsm 2418: if (errstr)
1.237 markus 2419: fatal("Invalid number: %s (%s)",
1.124 avsm 2420: optarg, errstr);
1.107 djm 2421: break;
1.274 djm 2422: case 'V':
2423: parse_cert_times(optarg);
2424: break;
2425: case 'z':
2426: errno = 0;
2427: cert_serial = strtoull(optarg, &ep, 10);
2428: if (*optarg < '0' || *optarg > '9' || *ep != '\0' ||
2429: (errno == ERANGE && cert_serial == ULLONG_MAX))
2430: fatal("Invalid serial number \"%s\"", optarg);
1.107 djm 2431: break;
1.274 djm 2432: #ifdef WITH_OPENSSL
2433: /* Moduli generation/screening */
1.107 djm 2434: case 'G':
2435: do_gen_candidates = 1;
1.124 avsm 2436: if (strlcpy(out_file, optarg, sizeof(out_file)) >=
2437: sizeof(out_file))
2438: fatal("Output filename too long");
1.107 djm 2439: break;
1.274 djm 2440: case 'J':
2441: lines_to_process = strtoul(optarg, NULL, 10);
1.292 dtucker 2442: break;
1.274 djm 2443: case 'j':
2444: start_lineno = strtoul(optarg, NULL, 10);
1.292 dtucker 2445: break;
1.211 dtucker 2446: case 'K':
1.253 deraadt 2447: if (strlen(optarg) >= PATH_MAX)
1.211 dtucker 2448: fatal("Checkpoint filename too long");
2449: checkpoint = xstrdup(optarg);
2450: break;
1.274 djm 2451: case 'M':
2452: memory = (u_int32_t)strtonum(optarg, 1, UINT_MAX,
2453: &errstr);
2454: if (errstr)
2455: fatal("Memory limit is %s: %s", errstr, optarg);
2456: break;
1.107 djm 2457: case 'S':
2458: /* XXX - also compare length against bits */
2459: if (BN_hex2bn(&start, optarg) == 0)
2460: fatal("Invalid start point.");
2461: break;
1.274 djm 2462: case 'T':
2463: do_screen_candidates = 1;
2464: if (strlcpy(out_file, optarg, sizeof(out_file)) >=
2465: sizeof(out_file))
2466: fatal("Output filename too long");
1.186 djm 2467: break;
1.274 djm 2468: case 'W':
2469: generator_wanted = (u_int32_t)strtonum(optarg, 1,
2470: UINT_MAX, &errstr);
2471: if (errstr != NULL)
2472: fatal("Desired generator invalid: %s (%s)",
2473: optarg, errstr);
1.179 djm 2474: break;
1.274 djm 2475: #endif /* WITH_OPENSSL */
1.12 markus 2476: case '?':
2477: default:
2478: usage();
2479: }
2480: }
1.113 djm 2481:
2482: /* reinit */
1.156 deraadt 2483: log_init(argv[0], log_level, SYSLOG_FACILITY_USER, 1);
1.113 djm 2484:
1.179 djm 2485: argv += optind;
2486: argc -= optind;
2487:
2488: if (ca_key_path != NULL) {
1.223 djm 2489: if (argc < 1 && !gen_krl) {
1.269 djm 2490: error("Too few arguments.");
1.179 djm 2491: usage();
2492: }
1.223 djm 2493: } else if (argc > 0 && !gen_krl && !check_krl) {
1.269 djm 2494: error("Too many arguments.");
1.87 djm 2495: usage();
2496: }
1.12 markus 2497: if (change_passphrase && change_comment) {
1.269 djm 2498: error("Can only have one of -p and -c.");
1.166 djm 2499: usage();
2500: }
2501: if (print_fingerprint && (delete_host || hash_hosts)) {
1.269 djm 2502: error("Cannot use -l with -H or -R.");
1.12 markus 2503: usage();
1.223 djm 2504: }
1.246 markus 2505: #ifdef WITH_OPENSSL
1.223 djm 2506: if (gen_krl) {
2507: do_gen_krl(pw, update_krl, argc, argv);
2508: return (0);
2509: }
2510: if (check_krl) {
2511: do_check_krl(pw, argc, argv);
2512: return (0);
1.179 djm 2513: }
1.246 markus 2514: #endif
1.179 djm 2515: if (ca_key_path != NULL) {
2516: if (cert_key_id == NULL)
2517: fatal("Must specify key id (-I) when certifying");
2518: do_ca_sign(pw, argc, argv);
1.12 markus 2519: }
1.182 djm 2520: if (show_cert)
2521: do_show_cert(pw);
1.119 djm 2522: if (delete_host || hash_hosts || find_host)
2523: do_known_hosts(pw, rr_hostname);
1.221 djm 2524: if (pkcs11provider != NULL)
2525: do_download(pw);
1.49 markus 2526: if (print_fingerprint || print_bubblebabble)
1.12 markus 2527: do_fingerprint(pw);
2528: if (change_passphrase)
2529: do_change_passphrase(pw);
2530: if (change_comment)
2531: do_change_comment(pw);
1.246 markus 2532: #ifdef WITH_OPENSSL
1.193 djm 2533: if (convert_to)
2534: do_convert_to(pw);
2535: if (convert_from)
2536: do_convert_from(pw);
1.246 markus 2537: #endif
1.19 markus 2538: if (print_public)
2539: do_print_public(pw);
1.119 djm 2540: if (rr_hostname != NULL) {
1.138 jakob 2541: unsigned int n = 0;
2542:
2543: if (have_identity) {
2544: n = do_print_resource_record(pw,
2545: identity_file, rr_hostname);
1.269 djm 2546: if (n == 0)
2547: fatal("%s: %s", identity_file, strerror(errno));
1.138 jakob 2548: exit(0);
2549: } else {
2550:
2551: n += do_print_resource_record(pw,
2552: _PATH_HOST_RSA_KEY_FILE, rr_hostname);
2553: n += do_print_resource_record(pw,
2554: _PATH_HOST_DSA_KEY_FILE, rr_hostname);
1.214 djm 2555: n += do_print_resource_record(pw,
2556: _PATH_HOST_ECDSA_KEY_FILE, rr_hostname);
1.244 logan 2557: n += do_print_resource_record(pw,
2558: _PATH_HOST_ED25519_KEY_FILE, rr_hostname);
1.138 jakob 2559: if (n == 0)
2560: fatal("no keys found.");
2561: exit(0);
2562: }
1.105 jakob 2563: }
1.107 djm 2564:
1.274 djm 2565: #ifdef WITH_OPENSSL
1.107 djm 2566: if (do_gen_candidates) {
2567: FILE *out = fopen(out_file, "w");
1.111 djm 2568:
1.107 djm 2569: if (out == NULL) {
2570: error("Couldn't open modulus candidate file \"%s\": %s",
2571: out_file, strerror(errno));
2572: return (1);
2573: }
1.130 markus 2574: if (bits == 0)
2575: bits = DEFAULT_BITS;
1.107 djm 2576: if (gen_candidates(out, memory, bits, start) != 0)
1.131 stevesk 2577: fatal("modulus candidate generation failed");
1.107 djm 2578:
2579: return (0);
2580: }
2581:
2582: if (do_screen_candidates) {
2583: FILE *in;
1.225 djm 2584: FILE *out = fopen(out_file, "a");
1.107 djm 2585:
2586: if (have_identity && strcmp(identity_file, "-") != 0) {
2587: if ((in = fopen(identity_file, "r")) == NULL) {
2588: fatal("Couldn't open modulus candidate "
1.111 djm 2589: "file \"%s\": %s", identity_file,
1.107 djm 2590: strerror(errno));
2591: }
2592: } else
2593: in = stdin;
2594:
2595: if (out == NULL) {
2596: fatal("Couldn't open moduli file \"%s\": %s",
2597: out_file, strerror(errno));
2598: }
1.237 markus 2599: if (prime_test(in, out, rounds == 0 ? 100 : rounds,
2600: generator_wanted, checkpoint,
1.215 dtucker 2601: start_lineno, lines_to_process) != 0)
1.131 stevesk 2602: fatal("modulus screening failed");
1.108 markus 2603: return (0);
1.75 markus 2604: }
1.274 djm 2605: #endif
1.12 markus 2606:
1.206 stevesk 2607: if (gen_all_hostkeys) {
2608: do_gen_all_hostkeys(pw);
2609: return (0);
2610: }
2611:
1.133 djm 2612: if (key_type_name == NULL)
1.273 djm 2613: key_type_name = DEFAULT_KEY_TYPE_NAME;
1.133 djm 2614:
1.252 djm 2615: type = sshkey_type_from_name(key_type_name);
1.255 djm 2616: type_bits_valid(type, key_type_name, &bits);
1.206 stevesk 2617:
1.33 markus 2618: if (!quiet)
1.252 djm 2619: printf("Generating public/private %s key pair.\n",
2620: key_type_name);
1.269 djm 2621: if ((r = sshkey_generate(type, bits, &private)) != 0)
2622: fatal("key_generate failed");
2623: if ((r = sshkey_from_private(private, &public)) != 0)
2624: fatal("key_from_private failed: %s\n", ssh_err(r));
1.12 markus 2625:
2626: if (!have_identity)
2627: ask_filename(pw, "Enter file in which to save the key");
2628:
1.132 djm 2629: /* Create ~/.ssh directory if it doesn't already exist. */
1.188 djm 2630: snprintf(dotsshdir, sizeof dotsshdir, "%s/%s",
2631: pw->pw_dir, _PATH_SSH_USER_DIR);
2632: if (strstr(identity_file, dotsshdir) != NULL) {
2633: if (stat(dotsshdir, &st) < 0) {
2634: if (errno != ENOENT) {
2635: error("Could not stat %s: %s", dotsshdir,
2636: strerror(errno));
2637: } else if (mkdir(dotsshdir, 0700) < 0) {
2638: error("Could not create directory '%s': %s",
2639: dotsshdir, strerror(errno));
2640: } else if (!quiet)
2641: printf("Created directory '%s'.\n", dotsshdir);
2642: }
1.12 markus 2643: }
2644: /* If the file already exists, ask the user to confirm. */
2645: if (stat(identity_file, &st) >= 0) {
2646: char yesno[3];
2647: printf("%s already exists.\n", identity_file);
2648: printf("Overwrite (y/n)? ");
2649: fflush(stdout);
2650: if (fgets(yesno, sizeof(yesno), stdin) == NULL)
2651: exit(1);
2652: if (yesno[0] != 'y' && yesno[0] != 'Y')
2653: exit(1);
2654: }
2655: /* Ask for a passphrase (twice). */
2656: if (identity_passphrase)
2657: passphrase1 = xstrdup(identity_passphrase);
2658: else if (identity_new_passphrase)
2659: passphrase1 = xstrdup(identity_new_passphrase);
2660: else {
2661: passphrase_again:
2662: passphrase1 =
1.65 markus 2663: read_passphrase("Enter passphrase (empty for no "
2664: "passphrase): ", RP_ALLOW_STDIN);
2665: passphrase2 = read_passphrase("Enter same passphrase again: ",
2666: RP_ALLOW_STDIN);
1.12 markus 2667: if (strcmp(passphrase1, passphrase2) != 0) {
1.65 markus 2668: /*
2669: * The passphrases do not match. Clear them and
2670: * retry.
2671: */
1.240 djm 2672: explicit_bzero(passphrase1, strlen(passphrase1));
2673: explicit_bzero(passphrase2, strlen(passphrase2));
1.227 djm 2674: free(passphrase1);
2675: free(passphrase2);
1.12 markus 2676: printf("Passphrases do not match. Try again.\n");
2677: goto passphrase_again;
2678: }
2679: /* Clear the other copy of the passphrase. */
1.240 djm 2680: explicit_bzero(passphrase2, strlen(passphrase2));
1.227 djm 2681: free(passphrase2);
1.12 markus 2682: }
2683:
2684: if (identity_comment) {
2685: strlcpy(comment, identity_comment, sizeof(comment));
2686: } else {
1.172 stevesk 2687: /* Create default comment field for the passphrase. */
1.12 markus 2688: snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname);
2689: }
2690:
2691: /* Save the key with the given passphrase and comment. */
1.252 djm 2692: if ((r = sshkey_save_private(private, identity_file, passphrase1,
2693: comment, use_new_format, new_format_cipher, rounds)) != 0) {
1.269 djm 2694: error("Saving key \"%s\" failed: %s",
1.252 djm 2695: identity_file, ssh_err(r));
1.240 djm 2696: explicit_bzero(passphrase1, strlen(passphrase1));
1.227 djm 2697: free(passphrase1);
1.12 markus 2698: exit(1);
2699: }
2700: /* Clear the passphrase. */
1.240 djm 2701: explicit_bzero(passphrase1, strlen(passphrase1));
1.227 djm 2702: free(passphrase1);
1.12 markus 2703:
2704: /* Clear the private key and the random number generator. */
1.252 djm 2705: sshkey_free(private);
1.12 markus 2706:
2707: if (!quiet)
2708: printf("Your identification has been saved in %s.\n", identity_file);
2709:
2710: strlcat(identity_file, ".pub", sizeof(identity_file));
1.269 djm 2711: if ((fd = open(identity_file, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1)
2712: fatal("Unable to save public key to %s: %s",
2713: identity_file, strerror(errno));
2714: if ((f = fdopen(fd, "w")) == NULL)
2715: fatal("fdopen %s failed: %s", identity_file, strerror(errno));
1.252 djm 2716: if ((r = sshkey_write(public, f)) != 0)
1.269 djm 2717: error("write key failed: %s", ssh_err(r));
1.19 markus 2718: fprintf(f, " %s\n", comment);
1.12 markus 2719: fclose(f);
2720:
2721: if (!quiet) {
1.259 djm 2722: fp = sshkey_fingerprint(public, fingerprint_hash,
1.251 djm 2723: SSH_FP_DEFAULT);
1.259 djm 2724: ra = sshkey_fingerprint(public, fingerprint_hash,
1.167 grunk 2725: SSH_FP_RANDOMART);
1.259 djm 2726: if (fp == NULL || ra == NULL)
2727: fatal("sshkey_fingerprint failed");
1.19 markus 2728: printf("Your public key has been saved in %s.\n",
2729: identity_file);
1.12 markus 2730: printf("The key fingerprint is:\n");
1.50 markus 2731: printf("%s %s\n", fp, comment);
1.167 grunk 2732: printf("The key's randomart image is:\n");
2733: printf("%s\n", ra);
1.227 djm 2734: free(ra);
2735: free(fp);
1.12 markus 2736: }
1.19 markus 2737:
1.252 djm 2738: sshkey_free(public);
1.12 markus 2739: exit(0);
1.1 deraadt 2740: }
![[BACK]](/icons/back.gif){kind=icon}
Return to ssh-keygen.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / ssh