jsing@openbsd.org | 94ec2b6 | 2018-02-07 05:15:49 +0000 | [diff] [blame] | 1 | /* $OpenBSD: ssh-keygen.c,v 1.310 2018/02/07 05:15:49 jsing Exp $ */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 2 | /* |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 3 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| 4 | * Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 5 | * All rights reserved |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 6 | * Identity and host key generation and maintenance. |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 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". |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 13 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 14 | |
| 15 | #include "includes.h" |
Damien Miller | f17883e | 2006-03-15 11:45:54 +1100 | [diff] [blame] | 16 | |
| 17 | #include <sys/types.h> |
Damien Miller | e3b60b5 | 2006-07-10 21:08:03 +1000 | [diff] [blame] | 18 | #include <sys/socket.h> |
Damien Miller | f17883e | 2006-03-15 11:45:54 +1100 | [diff] [blame] | 19 | #include <sys/stat.h> |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 20 | |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 21 | #ifdef WITH_OPENSSL |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 22 | #include <openssl/evp.h> |
| 23 | #include <openssl/pem.h> |
Darren Tucker | bfaaf96 | 2008-02-28 19:13:52 +1100 | [diff] [blame] | 24 | #include "openbsd-compat/openssl-compat.h" |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 25 | #endif |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 26 | |
Darren Tucker | 3997249 | 2006-07-12 22:22:46 +1000 | [diff] [blame] | 27 | #include <errno.h> |
Damien Miller | 57cf638 | 2006-07-10 21:13:46 +1000 | [diff] [blame] | 28 | #include <fcntl.h> |
Damien Miller | b8fe89c | 2006-07-24 14:51:00 +1000 | [diff] [blame] | 29 | #include <netdb.h> |
Darren Tucker | 2ee50c5 | 2006-07-11 18:55:05 +1000 | [diff] [blame] | 30 | #ifdef HAVE_PATHS_H |
| 31 | # include <paths.h> |
| 32 | #endif |
Damien Miller | 9f2abc4 | 2006-07-10 20:53:08 +1000 | [diff] [blame] | 33 | #include <pwd.h> |
Damien Miller | ded319c | 2006-09-01 15:38:36 +1000 | [diff] [blame] | 34 | #include <stdarg.h> |
Damien Miller | a7a73ee | 2006-08-05 11:37:59 +1000 | [diff] [blame] | 35 | #include <stdio.h> |
Damien Miller | e7a1e5c | 2006-08-05 11:34:19 +1000 | [diff] [blame] | 36 | #include <stdlib.h> |
Damien Miller | e3476ed | 2006-07-24 14:13:33 +1000 | [diff] [blame] | 37 | #include <string.h> |
Damien Miller | e6b3b61 | 2006-07-24 14:01:23 +1000 | [diff] [blame] | 38 | #include <unistd.h> |
deraadt@openbsd.org | 2ae4f33 | 2015-01-16 06:40:12 +0000 | [diff] [blame] | 39 | #include <limits.h> |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 40 | #include <locale.h> |
Damien Miller | 9f2abc4 | 2006-07-10 20:53:08 +1000 | [diff] [blame] | 41 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 42 | #include "xmalloc.h" |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 43 | #include "sshkey.h" |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 44 | #include "authfile.h" |
| 45 | #include "uuencode.h" |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 46 | #include "sshbuf.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 47 | #include "pathnames.h" |
| 48 | #include "log.h" |
Darren Tucker | e608ca2 | 2004-05-13 16:15:47 +1000 | [diff] [blame] | 49 | #include "misc.h" |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 50 | #include "match.h" |
| 51 | #include "hostfile.h" |
Damien Miller | 6999610 | 2006-07-10 20:53:31 +1000 | [diff] [blame] | 52 | #include "dns.h" |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 53 | #include "ssh.h" |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 54 | #include "ssh2.h" |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 55 | #include "ssherr.h" |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 56 | #include "ssh-pkcs11.h" |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 57 | #include "atomicio.h" |
| 58 | #include "krl.h" |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 59 | #include "digest.h" |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 60 | #include "utf8.h" |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 61 | #include "authfd.h" |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 62 | |
djm@openbsd.org | d195879 | 2015-05-28 04:40:13 +0000 | [diff] [blame] | 63 | #ifdef WITH_OPENSSL |
| 64 | # define DEFAULT_KEY_TYPE_NAME "rsa" |
| 65 | #else |
| 66 | # define DEFAULT_KEY_TYPE_NAME "ed25519" |
| 67 | #endif |
| 68 | |
Damien Miller | 3f54a9f | 2005-11-05 14:52:18 +1100 | [diff] [blame] | 69 | /* Number of bits in the RSA/DSA key. This value can be set on the command line. */ |
| 70 | #define DEFAULT_BITS 2048 |
| 71 | #define DEFAULT_BITS_DSA 1024 |
Damien Miller | 6e9f680 | 2010-09-10 11:17:38 +1000 | [diff] [blame] | 72 | #define DEFAULT_BITS_ECDSA 256 |
Damien Miller | 3f54a9f | 2005-11-05 14:52:18 +1100 | [diff] [blame] | 73 | u_int32_t bits = 0; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 74 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 75 | /* |
| 76 | * Flag indicating that we just want to change the passphrase. This can be |
| 77 | * set on the command line. |
| 78 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 79 | int change_passphrase = 0; |
| 80 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 81 | /* |
| 82 | * Flag indicating that we just want to change the comment. This can be set |
| 83 | * on the command line. |
| 84 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 85 | int change_comment = 0; |
| 86 | |
| 87 | int quiet = 0; |
| 88 | |
Darren Tucker | 35c4553 | 2008-06-13 04:43:15 +1000 | [diff] [blame] | 89 | int log_level = SYSLOG_LEVEL_INFO; |
| 90 | |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 91 | /* Flag indicating that we want to hash a known_hosts file */ |
| 92 | int hash_hosts = 0; |
| 93 | /* Flag indicating that we want lookup a host in known_hosts file */ |
| 94 | int find_host = 0; |
| 95 | /* Flag indicating that we want to delete a host from a known_hosts file */ |
| 96 | int delete_host = 0; |
| 97 | |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 98 | /* Flag indicating that we want to show the contents of a certificate */ |
| 99 | int show_cert = 0; |
| 100 | |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 101 | /* Flag indicating that we just want to see the key fingerprint */ |
| 102 | int print_fingerprint = 0; |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 103 | int print_bubblebabble = 0; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 104 | |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 105 | /* Hash algorithm to use for fingerprints. */ |
| 106 | int fingerprint_hash = SSH_FP_HASH_DEFAULT; |
| 107 | |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 108 | /* The identity file name, given on the command line or entered by the user. */ |
| 109 | char identity_file[1024]; |
| 110 | int have_identity = 0; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 111 | |
| 112 | /* This is set to the passphrase if given on the command line. */ |
| 113 | char *identity_passphrase = NULL; |
| 114 | |
| 115 | /* This is set to the new passphrase if given on the command line. */ |
| 116 | char *identity_new_passphrase = NULL; |
| 117 | |
| 118 | /* This is set to the new comment if given on the command line. */ |
| 119 | char *identity_comment = NULL; |
| 120 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 121 | /* Path to CA key when certifying keys. */ |
| 122 | char *ca_key_path = NULL; |
| 123 | |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 124 | /* Prefer to use agent keys for CA signing */ |
| 125 | int prefer_agent = 0; |
| 126 | |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 127 | /* Certificate serial number */ |
Damien Miller | 55aca02 | 2012-12-03 11:25:30 +1100 | [diff] [blame] | 128 | unsigned long long cert_serial = 0; |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 129 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 130 | /* Key type when certifying */ |
| 131 | u_int cert_key_type = SSH2_CERT_TYPE_USER; |
| 132 | |
| 133 | /* "key ID" of signed key */ |
| 134 | char *cert_key_id = NULL; |
| 135 | |
| 136 | /* Comma-separated list of principal names for certifying keys */ |
| 137 | char *cert_principals = NULL; |
| 138 | |
| 139 | /* Validity period for certificates */ |
| 140 | u_int64_t cert_valid_from = 0; |
| 141 | u_int64_t cert_valid_to = ~0ULL; |
| 142 | |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 143 | /* Certificate options */ |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 144 | #define CERTOPT_X_FWD (1) |
| 145 | #define CERTOPT_AGENT_FWD (1<<1) |
| 146 | #define CERTOPT_PORT_FWD (1<<2) |
| 147 | #define CERTOPT_PTY (1<<3) |
| 148 | #define CERTOPT_USER_RC (1<<4) |
| 149 | #define CERTOPT_DEFAULT (CERTOPT_X_FWD|CERTOPT_AGENT_FWD| \ |
| 150 | CERTOPT_PORT_FWD|CERTOPT_PTY|CERTOPT_USER_RC) |
| 151 | u_int32_t certflags_flags = CERTOPT_DEFAULT; |
| 152 | char *certflags_command = NULL; |
| 153 | char *certflags_src_addr = NULL; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 154 | |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 155 | /* Arbitrary extensions specified by user */ |
| 156 | struct cert_userext { |
| 157 | char *key; |
| 158 | char *val; |
| 159 | int crit; |
| 160 | }; |
| 161 | struct cert_userext *cert_userext; |
| 162 | size_t ncert_userext; |
| 163 | |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 164 | /* Conversion to/from various formats */ |
| 165 | int convert_to = 0; |
| 166 | int convert_from = 0; |
| 167 | enum { |
| 168 | FMT_RFC4716, |
| 169 | FMT_PKCS8, |
| 170 | FMT_PEM |
| 171 | } convert_format = FMT_RFC4716; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 172 | int print_public = 0; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 173 | int print_generic = 0; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 174 | |
Damien Miller | a41c8b1 | 2002-01-22 23:05:08 +1100 | [diff] [blame] | 175 | char *key_type_name = NULL; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 176 | |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 177 | /* Load key from this PKCS#11 provider */ |
| 178 | char *pkcs11provider = NULL; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 179 | |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 180 | /* Use new OpenSSH private key format when writing SSH2 keys instead of PEM */ |
| 181 | int use_new_format = 0; |
| 182 | |
| 183 | /* Cipher for new-format private keys */ |
| 184 | char *new_format_cipher = NULL; |
| 185 | |
| 186 | /* |
| 187 | * Number of KDF rounds to derive new format keys / |
| 188 | * number of primality trials when screening moduli. |
| 189 | */ |
| 190 | int rounds = 0; |
| 191 | |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 192 | /* argv0 */ |
| 193 | extern char *__progname; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 194 | |
Damien Miller | e5c0d52 | 2014-07-03 21:24:19 +1000 | [diff] [blame] | 195 | char hostname[NI_MAXHOST]; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 196 | |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 197 | #ifdef WITH_OPENSSL |
Darren Tucker | 770fc01 | 2004-05-13 16:24:32 +1000 | [diff] [blame] | 198 | /* moduli.c */ |
Damien Miller | b089fb5 | 2005-05-26 12:16:18 +1000 | [diff] [blame] | 199 | int gen_candidates(FILE *, u_int32_t, u_int32_t, BIGNUM *); |
Damien Miller | dfceafe | 2012-07-06 13:44:19 +1000 | [diff] [blame] | 200 | int prime_test(FILE *, FILE *, u_int32_t, u_int32_t, char *, unsigned long, |
| 201 | unsigned long); |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 202 | #endif |
Darren Tucker | 770fc01 | 2004-05-13 16:24:32 +1000 | [diff] [blame] | 203 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 204 | static void |
djm@openbsd.org | 7efb455 | 2015-01-18 13:22:28 +0000 | [diff] [blame] | 205 | type_bits_valid(int type, const char *name, u_int32_t *bitsp) |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 206 | { |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 207 | #ifdef WITH_OPENSSL |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 208 | u_int maxbits, nid; |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 209 | #endif |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 210 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 211 | if (type == KEY_UNSPEC) |
| 212 | fatal("unknown key type %s", key_type_name); |
Damien Miller | 884b63a | 2011-05-05 14:14:52 +1000 | [diff] [blame] | 213 | if (*bitsp == 0) { |
Damien Miller | 773dda2 | 2015-01-30 23:10:17 +1100 | [diff] [blame] | 214 | #ifdef WITH_OPENSSL |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 215 | if (type == KEY_DSA) |
Damien Miller | 884b63a | 2011-05-05 14:14:52 +1000 | [diff] [blame] | 216 | *bitsp = DEFAULT_BITS_DSA; |
djm@openbsd.org | 7efb455 | 2015-01-18 13:22:28 +0000 | [diff] [blame] | 217 | else if (type == KEY_ECDSA) { |
| 218 | if (name != NULL && |
| 219 | (nid = sshkey_ecdsa_nid_from_name(name)) > 0) |
| 220 | *bitsp = sshkey_curve_nid_to_bits(nid); |
| 221 | if (*bitsp == 0) |
| 222 | *bitsp = DEFAULT_BITS_ECDSA; |
Damien Miller | 773dda2 | 2015-01-30 23:10:17 +1100 | [diff] [blame] | 223 | } else |
| 224 | #endif |
Damien Miller | 884b63a | 2011-05-05 14:14:52 +1000 | [diff] [blame] | 225 | *bitsp = DEFAULT_BITS; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 226 | } |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 227 | #ifdef WITH_OPENSSL |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 228 | maxbits = (type == KEY_DSA) ? |
| 229 | OPENSSL_DSA_MAX_MODULUS_BITS : OPENSSL_RSA_MAX_MODULUS_BITS; |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 230 | if (*bitsp > maxbits) |
| 231 | fatal("key bits exceeds maximum %d", maxbits); |
djm@openbsd.org | bd636f4 | 2017-05-07 23:15:59 +0000 | [diff] [blame] | 232 | switch (type) { |
| 233 | case KEY_DSA: |
| 234 | if (*bitsp != 1024) |
| 235 | fatal("Invalid DSA key length: must be 1024 bits"); |
| 236 | break; |
| 237 | case KEY_RSA: |
| 238 | if (*bitsp < SSH_RSA_MINIMUM_MODULUS_SIZE) |
| 239 | fatal("Invalid RSA key length: minimum is %d bits", |
| 240 | SSH_RSA_MINIMUM_MODULUS_SIZE); |
| 241 | break; |
| 242 | case KEY_ECDSA: |
| 243 | if (sshkey_ecdsa_bits_to_nid(*bitsp) == -1) |
| 244 | fatal("Invalid ECDSA key length: valid lengths are " |
| 245 | "256, 384 or 521 bits"); |
| 246 | } |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 247 | #endif |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | static void |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 251 | ask_filename(struct passwd *pw, const char *prompt) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 252 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 253 | char buf[1024]; |
Damien Miller | e39cacc | 2000-11-29 12:18:44 +1100 | [diff] [blame] | 254 | char *name = NULL; |
| 255 | |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 256 | if (key_type_name == NULL) |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 257 | name = _PATH_SSH_CLIENT_ID_RSA; |
Damien Miller | 9096740 | 2006-03-26 14:07:26 +1100 | [diff] [blame] | 258 | else { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 259 | switch (sshkey_type_from_name(key_type_name)) { |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 260 | case KEY_DSA_CERT: |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 261 | case KEY_DSA: |
| 262 | name = _PATH_SSH_CLIENT_ID_DSA; |
| 263 | break; |
Damien Miller | dd190dd | 2010-11-11 14:17:02 +1100 | [diff] [blame] | 264 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 265 | case KEY_ECDSA_CERT: |
| 266 | case KEY_ECDSA: |
| 267 | name = _PATH_SSH_CLIENT_ID_ECDSA; |
| 268 | break; |
Damien Miller | dd190dd | 2010-11-11 14:17:02 +1100 | [diff] [blame] | 269 | #endif |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 270 | case KEY_RSA_CERT: |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 271 | case KEY_RSA: |
| 272 | name = _PATH_SSH_CLIENT_ID_RSA; |
| 273 | break; |
Damien Miller | 5be9d9e | 2013-12-07 11:24:01 +1100 | [diff] [blame] | 274 | case KEY_ED25519: |
| 275 | case KEY_ED25519_CERT: |
| 276 | name = _PATH_SSH_CLIENT_ID_ED25519; |
| 277 | break; |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 278 | default: |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 279 | fatal("bad key type"); |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 280 | } |
Damien Miller | 9096740 | 2006-03-26 14:07:26 +1100 | [diff] [blame] | 281 | } |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 282 | snprintf(identity_file, sizeof(identity_file), |
| 283 | "%s/%s", pw->pw_dir, name); |
| 284 | printf("%s (%s): ", prompt, identity_file); |
| 285 | fflush(stdout); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 286 | if (fgets(buf, sizeof(buf), stdin) == NULL) |
| 287 | exit(1); |
Damien Miller | 14b017d | 2007-09-17 16:09:15 +1000 | [diff] [blame] | 288 | buf[strcspn(buf, "\n")] = '\0'; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 289 | if (strcmp(buf, "") != 0) |
| 290 | strlcpy(identity_file, buf, sizeof(identity_file)); |
| 291 | have_identity = 1; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 292 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 293 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 294 | static struct sshkey * |
Ben Lindstrom | d78ae76 | 2001-06-05 20:35:09 +0000 | [diff] [blame] | 295 | load_identity(char *filename) |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 296 | { |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 297 | char *pass; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 298 | struct sshkey *prv; |
| 299 | int r; |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 300 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 301 | if ((r = sshkey_load_private(filename, "", &prv, NULL)) == 0) |
| 302 | return prv; |
| 303 | if (r != SSH_ERR_KEY_WRONG_PASSPHRASE) |
| 304 | fatal("Load key \"%s\": %s", filename, ssh_err(r)); |
| 305 | if (identity_passphrase) |
| 306 | pass = xstrdup(identity_passphrase); |
| 307 | else |
| 308 | pass = read_passphrase("Enter passphrase: ", RP_ALLOW_STDIN); |
| 309 | r = sshkey_load_private(filename, pass, &prv, NULL); |
| 310 | explicit_bzero(pass, strlen(pass)); |
| 311 | free(pass); |
| 312 | if (r != 0) |
| 313 | fatal("Load key \"%s\": %s", filename, ssh_err(r)); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 314 | return prv; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 315 | } |
| 316 | |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 317 | #define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" |
Ben Lindstrom | cb72e4f | 2002-06-21 00:41:51 +0000 | [diff] [blame] | 318 | #define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----" |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 319 | #define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----" |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 320 | #define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 321 | |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 322 | #ifdef WITH_OPENSSL |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 323 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 324 | do_convert_to_ssh2(struct passwd *pw, struct sshkey *k) |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 325 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 326 | size_t len; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 327 | u_char *blob; |
Darren Tucker | d04758d | 2010-01-12 19:41:57 +1100 | [diff] [blame] | 328 | char comment[61]; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 329 | int r; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 330 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 331 | if ((r = sshkey_to_blob(k, &blob, &len)) != 0) |
| 332 | fatal("key_to_blob failed: %s", ssh_err(r)); |
Darren Tucker | d04758d | 2010-01-12 19:41:57 +1100 | [diff] [blame] | 333 | /* Comment + surrounds must fit into 72 chars (RFC 4716 sec 3.3) */ |
| 334 | snprintf(comment, sizeof(comment), |
| 335 | "%u-bit %s, converted by %s@%s from OpenSSH", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 336 | sshkey_size(k), sshkey_type(k), |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 337 | pw->pw_name, hostname); |
Darren Tucker | d04758d | 2010-01-12 19:41:57 +1100 | [diff] [blame] | 338 | |
| 339 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
| 340 | fprintf(stdout, "Comment: \"%s\"\n", comment); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 341 | dump_base64(stdout, blob, len); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 342 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 343 | sshkey_free(k); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 344 | free(blob); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 345 | exit(0); |
| 346 | } |
| 347 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 348 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 349 | do_convert_to_pkcs8(struct sshkey *k) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 350 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 351 | switch (sshkey_type_plain(k->type)) { |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 352 | case KEY_RSA: |
| 353 | if (!PEM_write_RSA_PUBKEY(stdout, k->rsa)) |
| 354 | fatal("PEM_write_RSA_PUBKEY failed"); |
| 355 | break; |
| 356 | case KEY_DSA: |
| 357 | if (!PEM_write_DSA_PUBKEY(stdout, k->dsa)) |
| 358 | fatal("PEM_write_DSA_PUBKEY failed"); |
| 359 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 360 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 361 | case KEY_ECDSA: |
| 362 | if (!PEM_write_EC_PUBKEY(stdout, k->ecdsa)) |
| 363 | fatal("PEM_write_EC_PUBKEY failed"); |
| 364 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 365 | #endif |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 366 | default: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 367 | fatal("%s: unsupported key type %s", __func__, sshkey_type(k)); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 368 | } |
| 369 | exit(0); |
| 370 | } |
| 371 | |
| 372 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 373 | do_convert_to_pem(struct sshkey *k) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 374 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 375 | switch (sshkey_type_plain(k->type)) { |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 376 | case KEY_RSA: |
| 377 | if (!PEM_write_RSAPublicKey(stdout, k->rsa)) |
| 378 | fatal("PEM_write_RSAPublicKey failed"); |
| 379 | break; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 380 | default: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 381 | fatal("%s: unsupported key type %s", __func__, sshkey_type(k)); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 382 | } |
| 383 | exit(0); |
| 384 | } |
| 385 | |
| 386 | static void |
| 387 | do_convert_to(struct passwd *pw) |
| 388 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 389 | struct sshkey *k; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 390 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 391 | int r; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 392 | |
| 393 | if (!have_identity) |
| 394 | ask_filename(pw, "Enter file in which the key is"); |
| 395 | if (stat(identity_file, &st) < 0) |
| 396 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 397 | if ((r = sshkey_load_public(identity_file, &k, NULL)) != 0) |
| 398 | k = load_identity(identity_file); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 399 | switch (convert_format) { |
| 400 | case FMT_RFC4716: |
| 401 | do_convert_to_ssh2(pw, k); |
| 402 | break; |
| 403 | case FMT_PKCS8: |
| 404 | do_convert_to_pkcs8(k); |
| 405 | break; |
| 406 | case FMT_PEM: |
| 407 | do_convert_to_pem(k); |
| 408 | break; |
| 409 | default: |
| 410 | fatal("%s: unknown key format %d", __func__, convert_format); |
| 411 | } |
| 412 | exit(0); |
| 413 | } |
| 414 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 415 | /* |
| 416 | * This is almost exactly the bignum1 encoding, but with 32 bit for length |
| 417 | * instead of 16. |
| 418 | */ |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 419 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 420 | buffer_get_bignum_bits(struct sshbuf *b, BIGNUM *value) |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 421 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 422 | u_int bytes, bignum_bits; |
| 423 | int r; |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 424 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 425 | if ((r = sshbuf_get_u32(b, &bignum_bits)) != 0) |
| 426 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
| 427 | bytes = (bignum_bits + 7) / 8; |
| 428 | if (sshbuf_len(b) < bytes) |
| 429 | fatal("%s: input buffer too small: need %d have %zu", |
| 430 | __func__, bytes, sshbuf_len(b)); |
| 431 | if (BN_bin2bn(sshbuf_ptr(b), bytes, value) == NULL) |
| 432 | fatal("%s: BN_bin2bn failed", __func__); |
| 433 | if ((r = sshbuf_consume(b, bytes)) != 0) |
| 434 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 435 | } |
| 436 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 437 | static struct sshkey * |
Ben Lindstrom | 90fd814 | 2002-02-26 18:09:42 +0000 | [diff] [blame] | 438 | do_convert_private_ssh2_from_blob(u_char *blob, u_int blen) |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 439 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 440 | struct sshbuf *b; |
| 441 | struct sshkey *key = NULL; |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 442 | char *type, *cipher; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 443 | u_char e1, e2, e3, *sig = NULL, data[] = "abcde12345"; |
| 444 | int r, rlen, ktype; |
| 445 | u_int magic, i1, i2, i3, i4; |
| 446 | size_t slen; |
Ben Lindstrom | e586c4c | 2001-06-25 05:04:58 +0000 | [diff] [blame] | 447 | u_long e; |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 448 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 449 | if ((b = sshbuf_from(blob, blen)) == NULL) |
| 450 | fatal("%s: sshbuf_from failed", __func__); |
| 451 | if ((r = sshbuf_get_u32(b, &magic)) != 0) |
| 452 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 453 | |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 454 | if (magic != SSH_COM_PRIVATE_KEY_MAGIC) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 455 | error("bad magic 0x%x != 0x%x", magic, |
| 456 | SSH_COM_PRIVATE_KEY_MAGIC); |
| 457 | sshbuf_free(b); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 458 | return NULL; |
| 459 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 460 | if ((r = sshbuf_get_u32(b, &i1)) != 0 || |
| 461 | (r = sshbuf_get_cstring(b, &type, NULL)) != 0 || |
| 462 | (r = sshbuf_get_cstring(b, &cipher, NULL)) != 0 || |
| 463 | (r = sshbuf_get_u32(b, &i2)) != 0 || |
| 464 | (r = sshbuf_get_u32(b, &i3)) != 0 || |
| 465 | (r = sshbuf_get_u32(b, &i4)) != 0) |
| 466 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 8016390 | 2007-01-05 16:30:16 +1100 | [diff] [blame] | 467 | debug("ignore (%d %d %d %d)", i1, i2, i3, i4); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 468 | if (strcmp(cipher, "none") != 0) { |
| 469 | error("unsupported cipher %s", cipher); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 470 | free(cipher); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 471 | sshbuf_free(b); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 472 | free(type); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 473 | return NULL; |
| 474 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 475 | free(cipher); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 476 | |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 477 | if (strstr(type, "dsa")) { |
| 478 | ktype = KEY_DSA; |
| 479 | } else if (strstr(type, "rsa")) { |
| 480 | ktype = KEY_RSA; |
| 481 | } else { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 482 | sshbuf_free(b); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 483 | free(type); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 484 | return NULL; |
| 485 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 486 | if ((key = sshkey_new_private(ktype)) == NULL) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 487 | fatal("sshkey_new_private failed"); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 488 | free(type); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 489 | |
| 490 | switch (key->type) { |
| 491 | case KEY_DSA: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 492 | buffer_get_bignum_bits(b, key->dsa->p); |
| 493 | buffer_get_bignum_bits(b, key->dsa->g); |
| 494 | buffer_get_bignum_bits(b, key->dsa->q); |
| 495 | buffer_get_bignum_bits(b, key->dsa->pub_key); |
| 496 | buffer_get_bignum_bits(b, key->dsa->priv_key); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 497 | break; |
| 498 | case KEY_RSA: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 499 | if ((r = sshbuf_get_u8(b, &e1)) != 0 || |
| 500 | (e1 < 30 && (r = sshbuf_get_u8(b, &e2)) != 0) || |
| 501 | (e1 < 30 && (r = sshbuf_get_u8(b, &e3)) != 0)) |
| 502 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
| 503 | e = e1; |
Ben Lindstrom | 34f9188 | 2001-06-25 04:47:54 +0000 | [diff] [blame] | 504 | debug("e %lx", e); |
| 505 | if (e < 30) { |
| 506 | e <<= 8; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 507 | e += e2; |
Ben Lindstrom | 34f9188 | 2001-06-25 04:47:54 +0000 | [diff] [blame] | 508 | debug("e %lx", e); |
| 509 | e <<= 8; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 510 | e += e3; |
Ben Lindstrom | 34f9188 | 2001-06-25 04:47:54 +0000 | [diff] [blame] | 511 | debug("e %lx", e); |
| 512 | } |
| 513 | if (!BN_set_word(key->rsa->e, e)) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 514 | sshbuf_free(b); |
| 515 | sshkey_free(key); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 516 | return NULL; |
| 517 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 518 | buffer_get_bignum_bits(b, key->rsa->d); |
| 519 | buffer_get_bignum_bits(b, key->rsa->n); |
| 520 | buffer_get_bignum_bits(b, key->rsa->iqmp); |
| 521 | buffer_get_bignum_bits(b, key->rsa->q); |
| 522 | buffer_get_bignum_bits(b, key->rsa->p); |
djm@openbsd.org | 83fa3a0 | 2017-07-01 13:50:45 +0000 | [diff] [blame] | 523 | if ((r = ssh_rsa_generate_additional_parameters(key)) != 0) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 524 | fatal("generate RSA parameters failed: %s", ssh_err(r)); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 525 | break; |
| 526 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 527 | rlen = sshbuf_len(b); |
Ben Lindstrom | 1c37c6a | 2001-12-06 18:00:18 +0000 | [diff] [blame] | 528 | if (rlen != 0) |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 529 | error("do_convert_private_ssh2_from_blob: " |
| 530 | "remaining bytes in key blob %d", rlen); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 531 | sshbuf_free(b); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 532 | |
Ben Lindstrom | e586c4c | 2001-06-25 05:04:58 +0000 | [diff] [blame] | 533 | /* try the key */ |
markus@openbsd.org | 76c9fbb | 2015-12-04 16:41:28 +0000 | [diff] [blame] | 534 | if (sshkey_sign(key, &sig, &slen, data, sizeof(data), NULL, 0) != 0 || |
djm@openbsd.org | 04c7e28 | 2017-12-18 02:25:15 +0000 | [diff] [blame] | 535 | sshkey_verify(key, sig, slen, data, sizeof(data), NULL, 0) != 0) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 536 | sshkey_free(key); |
| 537 | free(sig); |
| 538 | return NULL; |
| 539 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 540 | free(sig); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 541 | return key; |
| 542 | } |
| 543 | |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 544 | static int |
| 545 | get_line(FILE *fp, char *line, size_t len) |
| 546 | { |
| 547 | int c; |
| 548 | size_t pos = 0; |
| 549 | |
| 550 | line[0] = '\0'; |
| 551 | while ((c = fgetc(fp)) != EOF) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 552 | if (pos >= len - 1) |
| 553 | fatal("input line too long."); |
Damien Miller | 9096740 | 2006-03-26 14:07:26 +1100 | [diff] [blame] | 554 | switch (c) { |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 555 | case '\r': |
| 556 | c = fgetc(fp); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 557 | if (c != EOF && c != '\n' && ungetc(c, fp) == EOF) |
| 558 | fatal("unget: %s", strerror(errno)); |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 559 | return pos; |
| 560 | case '\n': |
| 561 | return pos; |
| 562 | } |
| 563 | line[pos++] = c; |
| 564 | line[pos] = '\0'; |
| 565 | } |
Damien Miller | 6c7439f | 2007-01-05 16:29:55 +1100 | [diff] [blame] | 566 | /* We reached EOF */ |
| 567 | return -1; |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 568 | } |
| 569 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 570 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 571 | do_convert_from_ssh2(struct passwd *pw, struct sshkey **k, int *private) |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 572 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 573 | int r, blen, escaped = 0; |
Ben Lindstrom | 155b981 | 2002-04-02 20:26:26 +0000 | [diff] [blame] | 574 | u_int len; |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 575 | char line[1024]; |
Ben Lindstrom | 9e0ddd4 | 2001-09-18 05:41:19 +0000 | [diff] [blame] | 576 | u_char blob[8096]; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 577 | char encoded[8096]; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 578 | FILE *fp; |
| 579 | |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 580 | if ((fp = fopen(identity_file, "r")) == NULL) |
| 581 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 582 | encoded[0] = '\0'; |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 583 | while ((blen = get_line(fp, line, sizeof(line))) != -1) { |
Damien Miller | 746d1a6 | 2013-07-18 16:13:02 +1000 | [diff] [blame] | 584 | if (blen > 0 && line[blen - 1] == '\\') |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 585 | escaped++; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 586 | if (strncmp(line, "----", 4) == 0 || |
| 587 | strstr(line, ": ") != NULL) { |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 588 | if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 589 | *private = 1; |
Ben Lindstrom | e586c4c | 2001-06-25 05:04:58 +0000 | [diff] [blame] | 590 | if (strstr(line, " END ") != NULL) { |
| 591 | break; |
| 592 | } |
Ben Lindstrom | 3035860 | 2001-04-24 16:59:28 +0000 | [diff] [blame] | 593 | /* fprintf(stderr, "ignore: %s", line); */ |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 594 | continue; |
| 595 | } |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 596 | if (escaped) { |
| 597 | escaped--; |
Ben Lindstrom | 3035860 | 2001-04-24 16:59:28 +0000 | [diff] [blame] | 598 | /* fprintf(stderr, "escaped: %s", line); */ |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 599 | continue; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 600 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 601 | strlcat(encoded, line, sizeof(encoded)); |
| 602 | } |
Ben Lindstrom | 155b981 | 2002-04-02 20:26:26 +0000 | [diff] [blame] | 603 | len = strlen(encoded); |
| 604 | if (((len % 4) == 3) && |
| 605 | (encoded[len-1] == '=') && |
| 606 | (encoded[len-2] == '=') && |
| 607 | (encoded[len-3] == '=')) |
| 608 | encoded[len-3] = '\0'; |
Damien Miller | 4a8ed54 | 2002-01-22 23:33:31 +1100 | [diff] [blame] | 609 | blen = uudecode(encoded, blob, sizeof(blob)); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 610 | if (blen < 0) |
| 611 | fatal("uudecode failed."); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 612 | if (*private) |
| 613 | *k = do_convert_private_ssh2_from_blob(blob, blen); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 614 | else if ((r = sshkey_from_blob(blob, blen, k)) != 0) |
| 615 | fatal("decode blob failed: %s", ssh_err(r)); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 616 | fclose(fp); |
| 617 | } |
| 618 | |
| 619 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 620 | do_convert_from_pkcs8(struct sshkey **k, int *private) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 621 | { |
| 622 | EVP_PKEY *pubkey; |
| 623 | FILE *fp; |
| 624 | |
| 625 | if ((fp = fopen(identity_file, "r")) == NULL) |
| 626 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
| 627 | if ((pubkey = PEM_read_PUBKEY(fp, NULL, NULL, NULL)) == NULL) { |
| 628 | fatal("%s: %s is not a recognised public key format", __func__, |
| 629 | identity_file); |
| 630 | } |
| 631 | fclose(fp); |
| 632 | switch (EVP_PKEY_type(pubkey->type)) { |
| 633 | case EVP_PKEY_RSA: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 634 | if ((*k = sshkey_new(KEY_UNSPEC)) == NULL) |
| 635 | fatal("sshkey_new failed"); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 636 | (*k)->type = KEY_RSA; |
| 637 | (*k)->rsa = EVP_PKEY_get1_RSA(pubkey); |
| 638 | break; |
| 639 | case EVP_PKEY_DSA: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 640 | if ((*k = sshkey_new(KEY_UNSPEC)) == NULL) |
| 641 | fatal("sshkey_new failed"); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 642 | (*k)->type = KEY_DSA; |
| 643 | (*k)->dsa = EVP_PKEY_get1_DSA(pubkey); |
| 644 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 645 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 646 | case EVP_PKEY_EC: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 647 | if ((*k = sshkey_new(KEY_UNSPEC)) == NULL) |
| 648 | fatal("sshkey_new failed"); |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 649 | (*k)->type = KEY_ECDSA; |
| 650 | (*k)->ecdsa = EVP_PKEY_get1_EC_KEY(pubkey); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 651 | (*k)->ecdsa_nid = sshkey_ecdsa_key_to_nid((*k)->ecdsa); |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 652 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 653 | #endif |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 654 | default: |
| 655 | fatal("%s: unsupported pubkey type %d", __func__, |
| 656 | EVP_PKEY_type(pubkey->type)); |
| 657 | } |
| 658 | EVP_PKEY_free(pubkey); |
| 659 | return; |
| 660 | } |
| 661 | |
| 662 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 663 | do_convert_from_pem(struct sshkey **k, int *private) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 664 | { |
| 665 | FILE *fp; |
| 666 | RSA *rsa; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 667 | |
| 668 | if ((fp = fopen(identity_file, "r")) == NULL) |
| 669 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
| 670 | if ((rsa = PEM_read_RSAPublicKey(fp, NULL, NULL, NULL)) != NULL) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 671 | if ((*k = sshkey_new(KEY_UNSPEC)) == NULL) |
| 672 | fatal("sshkey_new failed"); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 673 | (*k)->type = KEY_RSA; |
| 674 | (*k)->rsa = rsa; |
| 675 | fclose(fp); |
| 676 | return; |
| 677 | } |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 678 | fatal("%s: unrecognised raw private key format", __func__); |
| 679 | } |
| 680 | |
| 681 | static void |
| 682 | do_convert_from(struct passwd *pw) |
| 683 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 684 | struct sshkey *k = NULL; |
| 685 | int r, private = 0, ok = 0; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 686 | struct stat st; |
| 687 | |
| 688 | if (!have_identity) |
| 689 | ask_filename(pw, "Enter file in which the key is"); |
| 690 | if (stat(identity_file, &st) < 0) |
| 691 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
| 692 | |
| 693 | switch (convert_format) { |
| 694 | case FMT_RFC4716: |
| 695 | do_convert_from_ssh2(pw, &k, &private); |
| 696 | break; |
| 697 | case FMT_PKCS8: |
| 698 | do_convert_from_pkcs8(&k, &private); |
| 699 | break; |
| 700 | case FMT_PEM: |
| 701 | do_convert_from_pem(&k, &private); |
| 702 | break; |
| 703 | default: |
| 704 | fatal("%s: unknown key format %d", __func__, convert_format); |
| 705 | } |
| 706 | |
djm@openbsd.org | 7a2c368 | 2015-01-30 00:59:19 +0000 | [diff] [blame] | 707 | if (!private) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 708 | if ((r = sshkey_write(k, stdout)) == 0) |
| 709 | ok = 1; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 710 | if (ok) |
| 711 | fprintf(stdout, "\n"); |
djm@openbsd.org | 7a2c368 | 2015-01-30 00:59:19 +0000 | [diff] [blame] | 712 | } else { |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 713 | switch (k->type) { |
| 714 | case KEY_DSA: |
| 715 | ok = PEM_write_DSAPrivateKey(stdout, k->dsa, NULL, |
| 716 | NULL, 0, NULL, NULL); |
| 717 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 718 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 719 | case KEY_ECDSA: |
| 720 | ok = PEM_write_ECPrivateKey(stdout, k->ecdsa, NULL, |
| 721 | NULL, 0, NULL, NULL); |
| 722 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 723 | #endif |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 724 | case KEY_RSA: |
| 725 | ok = PEM_write_RSAPrivateKey(stdout, k->rsa, NULL, |
| 726 | NULL, 0, NULL, NULL); |
| 727 | break; |
| 728 | default: |
| 729 | fatal("%s: unsupported key type %s", __func__, |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 730 | sshkey_type(k)); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 731 | } |
| 732 | } |
| 733 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 734 | if (!ok) |
| 735 | fatal("key write failed"); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 736 | sshkey_free(k); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 737 | exit(0); |
| 738 | } |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 739 | #endif |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 740 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 741 | static void |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 742 | do_print_public(struct passwd *pw) |
| 743 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 744 | struct sshkey *prv; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 745 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 746 | int r; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 747 | |
| 748 | if (!have_identity) |
| 749 | ask_filename(pw, "Enter file in which the key is"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 750 | if (stat(identity_file, &st) < 0) |
| 751 | fatal("%s: %s", identity_file, strerror(errno)); |
Ben Lindstrom | d78ae76 | 2001-06-05 20:35:09 +0000 | [diff] [blame] | 752 | prv = load_identity(identity_file); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 753 | if ((r = sshkey_write(prv, stdout)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 754 | error("sshkey_write failed: %s", ssh_err(r)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 755 | sshkey_free(prv); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 756 | fprintf(stdout, "\n"); |
| 757 | exit(0); |
| 758 | } |
| 759 | |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 760 | static void |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 761 | do_download(struct passwd *pw) |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 762 | { |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 763 | #ifdef ENABLE_PKCS11 |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 764 | struct sshkey **keys = NULL; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 765 | int i, nkeys; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 766 | enum sshkey_fp_rep rep; |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 767 | int fptype; |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 768 | char *fp, *ra; |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 769 | |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 770 | fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
| 771 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
Damien Miller | 1422c08 | 2013-01-09 16:44:54 +1100 | [diff] [blame] | 772 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 773 | pkcs11_init(0); |
| 774 | nkeys = pkcs11_add_provider(pkcs11provider, NULL, &keys); |
| 775 | if (nkeys <= 0) |
| 776 | fatal("cannot read public key from pkcs11"); |
| 777 | for (i = 0; i < nkeys; i++) { |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 778 | if (print_fingerprint) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 779 | fp = sshkey_fingerprint(keys[i], fptype, rep); |
| 780 | ra = sshkey_fingerprint(keys[i], fingerprint_hash, |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 781 | SSH_FP_RANDOMART); |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 782 | if (fp == NULL || ra == NULL) |
| 783 | fatal("%s: sshkey_fingerprint fail", __func__); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 784 | printf("%u %s %s (PKCS11 key)\n", sshkey_size(keys[i]), |
| 785 | fp, sshkey_type(keys[i])); |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 786 | if (log_level >= SYSLOG_LEVEL_VERBOSE) |
| 787 | printf("%s\n", ra); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 788 | free(ra); |
| 789 | free(fp); |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 790 | } else { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 791 | (void) sshkey_write(keys[i], stdout); /* XXX check */ |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 792 | fprintf(stdout, "\n"); |
| 793 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 794 | sshkey_free(keys[i]); |
Ben Lindstrom | 0936a5b | 2002-03-26 03:17:42 +0000 | [diff] [blame] | 795 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 796 | free(keys); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 797 | pkcs11_terminate(); |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 798 | exit(0); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 799 | #else |
| 800 | fatal("no pkcs11 support"); |
| 801 | #endif /* ENABLE_PKCS11 */ |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 802 | } |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 803 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 804 | static struct sshkey * |
| 805 | try_read_key(char **cpp) |
| 806 | { |
| 807 | struct sshkey *ret; |
| 808 | int r; |
| 809 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 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 | |
| 819 | static void |
| 820 | fingerprint_one_key(const struct sshkey *public, const char *comment) |
| 821 | { |
| 822 | char *fp = NULL, *ra = NULL; |
| 823 | enum sshkey_fp_rep rep; |
| 824 | int fptype; |
| 825 | |
| 826 | fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
| 827 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
| 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__); |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 832 | mprintf("%u %s %s (%s)\n", sshkey_size(public), fp, |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 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)); |
djm@openbsd.org | bcb7bc7 | 2015-11-18 08:37:28 +0000 | [diff] [blame] | 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 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 859 | fingerprint_one_key(public, comment); |
| 860 | sshkey_free(public); |
| 861 | free(comment); |
| 862 | } |
| 863 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 864 | static void |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 865 | do_fingerprint(struct passwd *pw) |
| 866 | { |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 867 | FILE *f; |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 868 | struct sshkey *public = NULL; |
djm@openbsd.org | cce6a36 | 2015-12-11 03:19:09 +0000 | [diff] [blame] | 869 | char *comment = NULL, *cp, *ep, line[SSH_MAX_PUBKEY_BYTES]; |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 870 | int i, invalid = 1; |
| 871 | const char *path; |
djm@openbsd.org | 1a31d02 | 2016-05-02 08:49:03 +0000 | [diff] [blame] | 872 | u_long lnum = 0; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 873 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 874 | if (!have_identity) |
| 875 | ask_filename(pw, "Enter file in which the key is"); |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 876 | path = identity_file; |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 877 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 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)); |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 883 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 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; |
| 891 | |
| 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 && |
djm@openbsd.org | bcb7bc7 | 2015-11-18 08:37:28 +0000 | [diff] [blame] | 903 | strstr(cp, "PRIVATE KEY") != NULL) { |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 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 | } |
| 932 | } |
| 933 | /* Retry after parsing leading hostname/key options */ |
| 934 | if (public == NULL && (public = try_read_key(&cp)) == NULL) { |
djm@openbsd.org | 1a31d02 | 2016-05-02 08:49:03 +0000 | [diff] [blame] | 935 | debug("%s:%lu: not a public key", path, lnum); |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 936 | continue; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 937 | } |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 938 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 939 | /* Find trailing comment, if any */ |
| 940 | for (; *cp == ' ' || *cp == '\t'; cp++) |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 941 | ; |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 942 | if (*cp != '\0' && *cp != '#') |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 943 | comment = cp; |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 944 | |
| 945 | fingerprint_one_key(public, comment); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 946 | sshkey_free(public); |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 947 | invalid = 0; /* One good key in the file is sufficient */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 948 | } |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 949 | fclose(f); |
| 950 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 951 | if (invalid) |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 952 | fatal("%s is not a public key file.", path); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 953 | exit(0); |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 954 | } |
| 955 | |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 956 | static void |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 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[] = { |
djm@openbsd.org | 5c27e3b | 2015-03-23 06:06:38 +0000 | [diff] [blame] | 964 | #ifdef WITH_OPENSSL |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 965 | { "rsa", "RSA" ,_PATH_HOST_RSA_KEY_FILE }, |
| 966 | { "dsa", "DSA", _PATH_HOST_DSA_KEY_FILE }, |
Damien Miller | b56e493 | 2012-02-06 07:41:27 +1100 | [diff] [blame] | 967 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 968 | { "ecdsa", "ECDSA",_PATH_HOST_ECDSA_KEY_FILE }, |
djm@openbsd.org | 5c27e3b | 2015-03-23 06:06:38 +0000 | [diff] [blame] | 969 | #endif /* OPENSSL_HAS_ECC */ |
| 970 | #endif /* WITH_OPENSSL */ |
Damien Miller | 5be9d9e | 2013-12-07 11:24:01 +1100 | [diff] [blame] | 971 | { "ed25519", "ED25519",_PATH_HOST_ED25519_KEY_FILE }, |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 972 | { NULL, NULL, NULL } |
| 973 | }; |
| 974 | |
| 975 | int first = 0; |
| 976 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 977 | struct sshkey *private, *public; |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 978 | char comment[1024], *prv_tmp, *pub_tmp, *prv_file, *pub_file; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 979 | int i, type, fd, r; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 980 | FILE *f; |
| 981 | |
| 982 | for (i = 0; key_types[i].key_type; i++) { |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 983 | public = private = NULL; |
| 984 | prv_tmp = pub_tmp = prv_file = pub_file = NULL; |
| 985 | |
| 986 | xasprintf(&prv_file, "%s%s", |
| 987 | identity_file, key_types[i].path); |
| 988 | |
| 989 | /* Check whether private key exists and is not zero-length */ |
| 990 | if (stat(prv_file, &st) == 0) { |
| 991 | if (st.st_size != 0) |
| 992 | goto next; |
| 993 | } else if (errno != ENOENT) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 994 | error("Could not stat %s: %s", key_types[i].path, |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 995 | strerror(errno)); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 996 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 997 | } |
| 998 | |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 999 | /* |
| 1000 | * Private key doesn't exist or is invalid; proceed with |
| 1001 | * key generation. |
| 1002 | */ |
| 1003 | xasprintf(&prv_tmp, "%s%s.XXXXXXXXXX", |
| 1004 | identity_file, key_types[i].path); |
| 1005 | xasprintf(&pub_tmp, "%s%s.pub.XXXXXXXXXX", |
| 1006 | identity_file, key_types[i].path); |
| 1007 | xasprintf(&pub_file, "%s%s.pub", |
| 1008 | identity_file, key_types[i].path); |
| 1009 | |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1010 | if (first == 0) { |
| 1011 | first = 1; |
| 1012 | printf("%s: generating new host keys: ", __progname); |
| 1013 | } |
| 1014 | printf("%s ", key_types[i].key_type_display); |
| 1015 | fflush(stdout); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1016 | type = sshkey_type_from_name(key_types[i].key_type); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1017 | if ((fd = mkstemp(prv_tmp)) == -1) { |
| 1018 | error("Could not save your public key in %s: %s", |
| 1019 | prv_tmp, strerror(errno)); |
| 1020 | goto failnext; |
| 1021 | } |
| 1022 | close(fd); /* just using mkstemp() to generate/reserve a name */ |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1023 | bits = 0; |
djm@openbsd.org | 7efb455 | 2015-01-18 13:22:28 +0000 | [diff] [blame] | 1024 | type_bits_valid(type, NULL, &bits); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1025 | if ((r = sshkey_generate(type, bits, &private)) != 0) { |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 1026 | error("sshkey_generate failed: %s", ssh_err(r)); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1027 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1028 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1029 | if ((r = sshkey_from_private(private, &public)) != 0) |
| 1030 | fatal("sshkey_from_private failed: %s", ssh_err(r)); |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1031 | snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, |
| 1032 | hostname); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1033 | if ((r = sshkey_save_private(private, prv_tmp, "", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1034 | comment, use_new_format, new_format_cipher, rounds)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1035 | error("Saving key \"%s\" failed: %s", |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1036 | prv_tmp, ssh_err(r)); |
| 1037 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1038 | } |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1039 | if ((fd = mkstemp(pub_tmp)) == -1) { |
| 1040 | error("Could not save your public key in %s: %s", |
| 1041 | pub_tmp, strerror(errno)); |
| 1042 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1043 | } |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1044 | (void)fchmod(fd, 0644); |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1045 | f = fdopen(fd, "w"); |
| 1046 | if (f == NULL) { |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1047 | error("fdopen %s failed: %s", pub_tmp, strerror(errno)); |
doug@openbsd.org | 7df8818 | 2014-08-21 01:08:52 +0000 | [diff] [blame] | 1048 | close(fd); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1049 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1050 | } |
djm@openbsd.org | bb8b442 | 2015-01-16 15:55:07 +0000 | [diff] [blame] | 1051 | if ((r = sshkey_write(public, f)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1052 | error("write key failed: %s", ssh_err(r)); |
doug@openbsd.org | 7df8818 | 2014-08-21 01:08:52 +0000 | [diff] [blame] | 1053 | fclose(f); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1054 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1055 | } |
| 1056 | fprintf(f, " %s\n", comment); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1057 | if (ferror(f) != 0) { |
| 1058 | error("write key failed: %s", strerror(errno)); |
| 1059 | fclose(f); |
| 1060 | goto failnext; |
| 1061 | } |
| 1062 | if (fclose(f) != 0) { |
| 1063 | error("key close failed: %s", strerror(errno)); |
| 1064 | goto failnext; |
| 1065 | } |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1066 | |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1067 | /* Rename temporary files to their permanent locations. */ |
| 1068 | if (rename(pub_tmp, pub_file) != 0) { |
| 1069 | error("Unable to move %s into position: %s", |
| 1070 | pub_file, strerror(errno)); |
| 1071 | goto failnext; |
| 1072 | } |
| 1073 | if (rename(prv_tmp, prv_file) != 0) { |
| 1074 | error("Unable to move %s into position: %s", |
| 1075 | key_types[i].path, strerror(errno)); |
| 1076 | failnext: |
| 1077 | first = 0; |
| 1078 | goto next; |
| 1079 | } |
| 1080 | next: |
| 1081 | sshkey_free(private); |
| 1082 | sshkey_free(public); |
| 1083 | free(prv_tmp); |
| 1084 | free(pub_tmp); |
| 1085 | free(prv_file); |
| 1086 | free(pub_file); |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1087 | } |
| 1088 | if (first != 0) |
| 1089 | printf("\n"); |
| 1090 | } |
| 1091 | |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1092 | struct known_hosts_ctx { |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1093 | const char *host; /* Hostname searched for in find/delete case */ |
| 1094 | FILE *out; /* Output file, stdout for find_hosts case */ |
| 1095 | int has_unhashed; /* When hashing, original had unhashed hosts */ |
| 1096 | int found_key; /* For find/delete, host was found */ |
| 1097 | int invalid; /* File contained invalid items; don't delete */ |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1098 | }; |
| 1099 | |
| 1100 | static int |
| 1101 | known_hosts_hash(struct hostkey_foreach_line *l, void *_ctx) |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1102 | { |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1103 | struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx; |
| 1104 | char *hashed, *cp, *hosts, *ohosts; |
| 1105 | int has_wild = l->hosts && strcspn(l->hosts, "*?!") != strlen(l->hosts); |
dtucker@openbsd.org | 1850115 | 2017-03-06 02:03:20 +0000 | [diff] [blame] | 1106 | int was_hashed = l->hosts && l->hosts[0] == HASH_DELIM; |
Darren Tucker | 0f7e910 | 2008-06-08 12:54:29 +1000 | [diff] [blame] | 1107 | |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1108 | switch (l->status) { |
| 1109 | case HKF_STATUS_OK: |
| 1110 | case HKF_STATUS_MATCHED: |
| 1111 | /* |
| 1112 | * Don't hash hosts already already hashed, with wildcard |
| 1113 | * characters or a CA/revocation marker. |
| 1114 | */ |
djm@openbsd.org | 12d3767 | 2017-03-03 06:13:11 +0000 | [diff] [blame] | 1115 | if (was_hashed || has_wild || l->marker != MRK_NONE) { |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1116 | fprintf(ctx->out, "%s\n", l->line); |
| 1117 | if (has_wild && !find_host) { |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1118 | logit("%s:%lu: ignoring host name " |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1119 | "with wildcard: %.64s", l->path, |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1120 | l->linenum, l->hosts); |
| 1121 | } |
| 1122 | return 0; |
| 1123 | } |
| 1124 | /* |
| 1125 | * Split any comma-separated hostnames from the host list, |
| 1126 | * hash and store separately. |
| 1127 | */ |
| 1128 | ohosts = hosts = xstrdup(l->hosts); |
| 1129 | while ((cp = strsep(&hosts, ",")) != NULL && *cp != '\0') { |
djm@openbsd.org | db25972 | 2017-03-10 04:26:06 +0000 | [diff] [blame] | 1130 | lowercase(cp); |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1131 | if ((hashed = host_hash(cp, NULL, 0)) == NULL) |
| 1132 | fatal("hash_host failed"); |
| 1133 | fprintf(ctx->out, "%s %s\n", hashed, l->rawkey); |
| 1134 | ctx->has_unhashed = 1; |
| 1135 | } |
| 1136 | free(ohosts); |
| 1137 | return 0; |
| 1138 | case HKF_STATUS_INVALID: |
| 1139 | /* Retain invalid lines, but mark file as invalid. */ |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1140 | ctx->invalid = 1; |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1141 | logit("%s:%lu: invalid line", l->path, l->linenum); |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1142 | /* FALLTHROUGH */ |
| 1143 | default: |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1144 | fprintf(ctx->out, "%s\n", l->line); |
| 1145 | return 0; |
Darren Tucker | 0f7e910 | 2008-06-08 12:54:29 +1000 | [diff] [blame] | 1146 | } |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1147 | /* NOTREACHED */ |
| 1148 | return -1; |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1149 | } |
| 1150 | |
| 1151 | static int |
| 1152 | known_hosts_find_delete(struct hostkey_foreach_line *l, void *_ctx) |
| 1153 | { |
| 1154 | struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx; |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1155 | enum sshkey_fp_rep rep; |
| 1156 | int fptype; |
| 1157 | char *fp; |
| 1158 | |
| 1159 | fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
| 1160 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1161 | |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1162 | if (l->status == HKF_STATUS_MATCHED) { |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1163 | if (delete_host) { |
| 1164 | if (l->marker != MRK_NONE) { |
| 1165 | /* Don't remove CA and revocation lines */ |
| 1166 | fprintf(ctx->out, "%s\n", l->line); |
| 1167 | } else { |
| 1168 | /* |
| 1169 | * Hostname matches and has no CA/revoke |
| 1170 | * marker, delete it by *not* writing the |
| 1171 | * line to ctx->out. |
| 1172 | */ |
| 1173 | ctx->found_key = 1; |
| 1174 | if (!quiet) |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1175 | printf("# Host %s found: line %lu\n", |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1176 | ctx->host, l->linenum); |
| 1177 | } |
| 1178 | return 0; |
| 1179 | } else if (find_host) { |
| 1180 | ctx->found_key = 1; |
| 1181 | if (!quiet) { |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1182 | printf("# Host %s found: line %lu %s\n", |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1183 | ctx->host, |
| 1184 | l->linenum, l->marker == MRK_CA ? "CA" : |
| 1185 | (l->marker == MRK_REVOKE ? "REVOKED" : "")); |
| 1186 | } |
| 1187 | if (hash_hosts) |
| 1188 | known_hosts_hash(l, ctx); |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1189 | else if (print_fingerprint) { |
| 1190 | fp = sshkey_fingerprint(l->key, fptype, rep); |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 1191 | mprintf("%s %s %s %s\n", ctx->host, |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1192 | sshkey_type(l->key), fp, l->comment); |
| 1193 | free(fp); |
| 1194 | } else |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1195 | fprintf(ctx->out, "%s\n", l->line); |
| 1196 | return 0; |
| 1197 | } |
| 1198 | } else if (delete_host) { |
| 1199 | /* Retain non-matching hosts when deleting */ |
| 1200 | if (l->status == HKF_STATUS_INVALID) { |
| 1201 | ctx->invalid = 1; |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1202 | logit("%s:%lu: invalid line", l->path, l->linenum); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1203 | } |
| 1204 | fprintf(ctx->out, "%s\n", l->line); |
| 1205 | } |
| 1206 | return 0; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1207 | } |
| 1208 | |
| 1209 | static void |
| 1210 | do_known_hosts(struct passwd *pw, const char *name) |
| 1211 | { |
deraadt@openbsd.org | d2099de | 2015-01-19 00:32:54 +0000 | [diff] [blame] | 1212 | char *cp, tmp[PATH_MAX], old[PATH_MAX]; |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1213 | int r, fd, oerrno, inplace = 0; |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1214 | struct known_hosts_ctx ctx; |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1215 | u_int foreach_options; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1216 | |
| 1217 | if (!have_identity) { |
| 1218 | cp = tilde_expand_filename(_PATH_SSH_USER_HOSTFILE, pw->pw_uid); |
| 1219 | if (strlcpy(identity_file, cp, sizeof(identity_file)) >= |
| 1220 | sizeof(identity_file)) |
| 1221 | fatal("Specified known hosts path too long"); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1222 | free(cp); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1223 | have_identity = 1; |
| 1224 | } |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1225 | |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1226 | memset(&ctx, 0, sizeof(ctx)); |
| 1227 | ctx.out = stdout; |
| 1228 | ctx.host = name; |
| 1229 | |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1230 | /* |
| 1231 | * Find hosts goes to stdout, hash and deletions happen in-place |
| 1232 | * A corner case is ssh-keygen -HF foo, which should go to stdout |
| 1233 | */ |
| 1234 | if (!find_host && (hash_hosts || delete_host)) { |
| 1235 | if (strlcpy(tmp, identity_file, sizeof(tmp)) >= sizeof(tmp) || |
| 1236 | strlcat(tmp, ".XXXXXXXXXX", sizeof(tmp)) >= sizeof(tmp) || |
| 1237 | strlcpy(old, identity_file, sizeof(old)) >= sizeof(old) || |
| 1238 | strlcat(old, ".old", sizeof(old)) >= sizeof(old)) |
| 1239 | fatal("known_hosts path too long"); |
| 1240 | umask(077); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1241 | if ((fd = mkstemp(tmp)) == -1) |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1242 | fatal("mkstemp: %s", strerror(errno)); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1243 | if ((ctx.out = fdopen(fd, "w")) == NULL) { |
| 1244 | oerrno = errno; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1245 | unlink(tmp); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1246 | fatal("fdopen: %s", strerror(oerrno)); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1247 | } |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1248 | inplace = 1; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1249 | } |
| 1250 | |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1251 | /* XXX support identity_file == "-" for stdin */ |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1252 | foreach_options = find_host ? HKF_WANT_MATCH : 0; |
| 1253 | foreach_options |= print_fingerprint ? HKF_WANT_PARSE_KEY : 0; |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1254 | if ((r = hostkeys_foreach(identity_file, |
| 1255 | hash_hosts ? known_hosts_hash : known_hosts_find_delete, &ctx, |
deraadt@openbsd.org | 6da413c | 2015-11-28 06:50:52 +0000 | [diff] [blame] | 1256 | name, NULL, foreach_options)) != 0) { |
| 1257 | if (inplace) |
| 1258 | unlink(tmp); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1259 | fatal("%s: hostkeys_foreach failed: %s", __func__, ssh_err(r)); |
deraadt@openbsd.org | 6da413c | 2015-11-28 06:50:52 +0000 | [diff] [blame] | 1260 | } |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1261 | |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1262 | if (inplace) |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1263 | fclose(ctx.out); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1264 | |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1265 | if (ctx.invalid) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1266 | error("%s is not a valid known_hosts file.", identity_file); |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1267 | if (inplace) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1268 | error("Not replacing existing known_hosts " |
| 1269 | "file because of errors"); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1270 | unlink(tmp); |
| 1271 | } |
| 1272 | exit(1); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1273 | } else if (delete_host && !ctx.found_key) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1274 | logit("Host %s not found in %s", name, identity_file); |
djm@openbsd.org | c837643 | 2015-08-19 23:17:51 +0000 | [diff] [blame] | 1275 | if (inplace) |
| 1276 | unlink(tmp); |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1277 | } else if (inplace) { |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1278 | /* Backup existing file */ |
| 1279 | if (unlink(old) == -1 && errno != ENOENT) |
| 1280 | fatal("unlink %.100s: %s", old, strerror(errno)); |
| 1281 | if (link(identity_file, old) == -1) |
| 1282 | fatal("link %.100s to %.100s: %s", identity_file, old, |
| 1283 | strerror(errno)); |
| 1284 | /* Move new one into place */ |
| 1285 | if (rename(tmp, identity_file) == -1) { |
| 1286 | error("rename\"%s\" to \"%s\": %s", tmp, identity_file, |
| 1287 | strerror(errno)); |
| 1288 | unlink(tmp); |
| 1289 | unlink(old); |
| 1290 | exit(1); |
| 1291 | } |
| 1292 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1293 | printf("%s updated.\n", identity_file); |
| 1294 | printf("Original contents retained as %s\n", old); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1295 | if (ctx.has_unhashed) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1296 | logit("WARNING: %s contains unhashed entries", old); |
| 1297 | logit("Delete this file to ensure privacy " |
| 1298 | "of hostnames"); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1299 | } |
| 1300 | } |
| 1301 | |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1302 | exit (find_host && !ctx.found_key); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1303 | } |
| 1304 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1305 | /* |
| 1306 | * Perform changing a passphrase. The argument is the passwd structure |
| 1307 | * for the current user. |
| 1308 | */ |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1309 | static void |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 1310 | do_change_passphrase(struct passwd *pw) |
| 1311 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1312 | char *comment; |
| 1313 | char *old_passphrase, *passphrase1, *passphrase2; |
| 1314 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1315 | struct sshkey *private; |
| 1316 | int r; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 1317 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1318 | if (!have_identity) |
| 1319 | ask_filename(pw, "Enter file in which the key is"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1320 | if (stat(identity_file, &st) < 0) |
| 1321 | fatal("%s: %s", identity_file, strerror(errno)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1322 | /* Try to load the file with empty passphrase. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1323 | r = sshkey_load_private(identity_file, "", &private, &comment); |
| 1324 | if (r == SSH_ERR_KEY_WRONG_PASSPHRASE) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1325 | if (identity_passphrase) |
| 1326 | old_passphrase = xstrdup(identity_passphrase); |
| 1327 | else |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 1328 | old_passphrase = |
| 1329 | read_passphrase("Enter old passphrase: ", |
| 1330 | RP_ALLOW_STDIN); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1331 | r = sshkey_load_private(identity_file, old_passphrase, |
| 1332 | &private, &comment); |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1333 | explicit_bzero(old_passphrase, strlen(old_passphrase)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1334 | free(old_passphrase); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1335 | if (r != 0) |
| 1336 | goto badkey; |
| 1337 | } else if (r != 0) { |
| 1338 | badkey: |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1339 | fatal("Failed to load key %s: %s", identity_file, ssh_err(r)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1340 | } |
djm@openbsd.org | f43d172 | 2015-02-26 20:45:47 +0000 | [diff] [blame] | 1341 | if (comment) |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 1342 | mprintf("Key has comment '%s'\n", comment); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1343 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1344 | /* Ask the new passphrase (twice). */ |
| 1345 | if (identity_new_passphrase) { |
| 1346 | passphrase1 = xstrdup(identity_new_passphrase); |
| 1347 | passphrase2 = NULL; |
| 1348 | } else { |
| 1349 | passphrase1 = |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 1350 | read_passphrase("Enter new passphrase (empty for no " |
| 1351 | "passphrase): ", RP_ALLOW_STDIN); |
| 1352 | passphrase2 = read_passphrase("Enter same passphrase again: ", |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 1353 | RP_ALLOW_STDIN); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1354 | |
| 1355 | /* Verify that they are the same. */ |
| 1356 | if (strcmp(passphrase1, passphrase2) != 0) { |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1357 | explicit_bzero(passphrase1, strlen(passphrase1)); |
| 1358 | explicit_bzero(passphrase2, strlen(passphrase2)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1359 | free(passphrase1); |
| 1360 | free(passphrase2); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1361 | printf("Pass phrases do not match. Try again.\n"); |
| 1362 | exit(1); |
| 1363 | } |
| 1364 | /* Destroy the other copy. */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1365 | explicit_bzero(passphrase2, strlen(passphrase2)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1366 | free(passphrase2); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1367 | } |
| 1368 | |
| 1369 | /* Save the file using the new passphrase. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1370 | if ((r = sshkey_save_private(private, identity_file, passphrase1, |
| 1371 | comment, use_new_format, new_format_cipher, rounds)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1372 | error("Saving key \"%s\" failed: %s.", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1373 | identity_file, ssh_err(r)); |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1374 | explicit_bzero(passphrase1, strlen(passphrase1)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1375 | free(passphrase1); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1376 | sshkey_free(private); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1377 | free(comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1378 | exit(1); |
| 1379 | } |
| 1380 | /* Destroy the passphrase and the copy of the key in memory. */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1381 | explicit_bzero(passphrase1, strlen(passphrase1)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1382 | free(passphrase1); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1383 | sshkey_free(private); /* Destroys contents */ |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1384 | free(comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1385 | |
| 1386 | printf("Your identification has been saved with the new passphrase.\n"); |
| 1387 | exit(0); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1388 | } |
| 1389 | |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1390 | /* |
| 1391 | * Print the SSHFP RR. |
| 1392 | */ |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 1393 | static int |
| 1394 | do_print_resource_record(struct passwd *pw, char *fname, char *hname) |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1395 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1396 | struct sshkey *public; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1397 | char *comment = NULL; |
| 1398 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1399 | int r; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1400 | |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 1401 | if (fname == NULL) |
Damien Miller | 5bb8833 | 2013-07-18 16:13:37 +1000 | [diff] [blame] | 1402 | fatal("%s: no filename", __func__); |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 1403 | if (stat(fname, &st) < 0) { |
| 1404 | if (errno == ENOENT) |
| 1405 | return 0; |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1406 | fatal("%s: %s", fname, strerror(errno)); |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1407 | } |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1408 | if ((r = sshkey_load_public(fname, &public, &comment)) != 0) |
| 1409 | fatal("Failed to read v2 public key from \"%s\": %s.", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1410 | fname, ssh_err(r)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1411 | export_dns_rr(hname, public, stdout, print_generic); |
| 1412 | sshkey_free(public); |
| 1413 | free(comment); |
| 1414 | return 1; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1415 | } |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1416 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1417 | /* |
| 1418 | * Change the comment of a private key file. |
| 1419 | */ |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1420 | static void |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1421 | do_change_comment(struct passwd *pw) |
| 1422 | { |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 1423 | char new_comment[1024], *comment, *passphrase; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1424 | struct sshkey *private; |
| 1425 | struct sshkey *public; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1426 | struct stat st; |
| 1427 | FILE *f; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1428 | int r, fd; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1429 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1430 | if (!have_identity) |
| 1431 | ask_filename(pw, "Enter file in which the key is"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1432 | if (stat(identity_file, &st) < 0) |
| 1433 | fatal("%s: %s", identity_file, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1434 | if ((r = sshkey_load_private(identity_file, "", |
| 1435 | &private, &comment)) == 0) |
| 1436 | passphrase = xstrdup(""); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1437 | else if (r != SSH_ERR_KEY_WRONG_PASSPHRASE) |
| 1438 | fatal("Cannot load private key \"%s\": %s.", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1439 | identity_file, ssh_err(r)); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1440 | else { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1441 | if (identity_passphrase) |
| 1442 | passphrase = xstrdup(identity_passphrase); |
| 1443 | else if (identity_new_passphrase) |
| 1444 | passphrase = xstrdup(identity_new_passphrase); |
| 1445 | else |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 1446 | passphrase = read_passphrase("Enter passphrase: ", |
| 1447 | RP_ALLOW_STDIN); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1448 | /* Try to load using the passphrase. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1449 | if ((r = sshkey_load_private(identity_file, passphrase, |
| 1450 | &private, &comment)) != 0) { |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1451 | explicit_bzero(passphrase, strlen(passphrase)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1452 | free(passphrase); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1453 | fatal("Cannot load private key \"%s\": %s.", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1454 | identity_file, ssh_err(r)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1455 | } |
| 1456 | } |
halex@openbsd.org | 4d90625 | 2015-11-20 23:04:01 +0000 | [diff] [blame] | 1457 | |
djm@openbsd.org | 873d3e7 | 2017-04-30 23:18:44 +0000 | [diff] [blame] | 1458 | if (private->type != KEY_ED25519 && !use_new_format) { |
| 1459 | error("Comments are only supported for keys stored in " |
halex@openbsd.org | 4d90625 | 2015-11-20 23:04:01 +0000 | [diff] [blame] | 1460 | "the new format (-o)."); |
tobias@openbsd.org | 704d8c8 | 2015-03-31 11:06:49 +0000 | [diff] [blame] | 1461 | explicit_bzero(passphrase, strlen(passphrase)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1462 | sshkey_free(private); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 1463 | exit(1); |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 1464 | } |
millert@openbsd.org | e40269b | 2017-02-08 20:32:43 +0000 | [diff] [blame] | 1465 | if (comment) |
| 1466 | printf("Key now has comment '%s'\n", comment); |
| 1467 | else |
| 1468 | printf("Key now has no comment\n"); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1469 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1470 | if (identity_comment) { |
| 1471 | strlcpy(new_comment, identity_comment, sizeof(new_comment)); |
| 1472 | } else { |
| 1473 | printf("Enter new comment: "); |
| 1474 | fflush(stdout); |
| 1475 | if (!fgets(new_comment, sizeof(new_comment), stdin)) { |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1476 | explicit_bzero(passphrase, strlen(passphrase)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1477 | sshkey_free(private); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1478 | exit(1); |
| 1479 | } |
Damien Miller | 14b017d | 2007-09-17 16:09:15 +1000 | [diff] [blame] | 1480 | new_comment[strcspn(new_comment, "\n")] = '\0'; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1481 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1482 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1483 | /* Save the file using the new passphrase. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1484 | if ((r = sshkey_save_private(private, identity_file, passphrase, |
| 1485 | new_comment, use_new_format, new_format_cipher, rounds)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1486 | error("Saving key \"%s\" failed: %s", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1487 | identity_file, ssh_err(r)); |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1488 | explicit_bzero(passphrase, strlen(passphrase)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1489 | free(passphrase); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1490 | sshkey_free(private); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1491 | free(comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1492 | exit(1); |
| 1493 | } |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1494 | explicit_bzero(passphrase, strlen(passphrase)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1495 | free(passphrase); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1496 | if ((r = sshkey_from_private(private, &public)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 1497 | fatal("sshkey_from_private failed: %s", ssh_err(r)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1498 | sshkey_free(private); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1499 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1500 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 1501 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1502 | if (fd == -1) |
| 1503 | fatal("Could not save your public key in %s", identity_file); |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 1504 | f = fdopen(fd, "w"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1505 | if (f == NULL) |
| 1506 | fatal("fdopen %s failed: %s", identity_file, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1507 | if ((r = sshkey_write(public, f)) != 0) |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1508 | fatal("write key failed: %s", ssh_err(r)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1509 | sshkey_free(public); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 1510 | fprintf(f, " %s\n", new_comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1511 | fclose(f); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1512 | |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1513 | free(comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1514 | |
| 1515 | printf("The comment in your key file has been changed.\n"); |
| 1516 | exit(0); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1517 | } |
| 1518 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1519 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1520 | add_flag_option(struct sshbuf *c, const char *name) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1521 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1522 | int r; |
| 1523 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1524 | debug3("%s: %s", __func__, name); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1525 | if ((r = sshbuf_put_cstring(c, name)) != 0 || |
| 1526 | (r = sshbuf_put_string(c, NULL, 0)) != 0) |
| 1527 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1528 | } |
| 1529 | |
| 1530 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1531 | add_string_option(struct sshbuf *c, const char *name, const char *value) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1532 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1533 | struct sshbuf *b; |
| 1534 | int r; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1535 | |
| 1536 | debug3("%s: %s=%s", __func__, name, value); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1537 | if ((b = sshbuf_new()) == NULL) |
| 1538 | fatal("%s: sshbuf_new failed", __func__); |
| 1539 | if ((r = sshbuf_put_cstring(b, value)) != 0 || |
| 1540 | (r = sshbuf_put_cstring(c, name)) != 0 || |
| 1541 | (r = sshbuf_put_stringb(c, b)) != 0) |
| 1542 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1543 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1544 | sshbuf_free(b); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1545 | } |
| 1546 | |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1547 | #define OPTIONS_CRITICAL 1 |
| 1548 | #define OPTIONS_EXTENSIONS 2 |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1549 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1550 | prepare_options_buf(struct sshbuf *c, int which) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1551 | { |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 1552 | size_t i; |
| 1553 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1554 | sshbuf_reset(c); |
Damien Miller | 1da6388 | 2010-08-05 13:03:51 +1000 | [diff] [blame] | 1555 | if ((which & OPTIONS_CRITICAL) != 0 && |
| 1556 | certflags_command != NULL) |
| 1557 | add_string_option(c, "force-command", certflags_command); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1558 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
Damien Miller | 2ce12ef | 2011-05-05 14:17:18 +1000 | [diff] [blame] | 1559 | (certflags_flags & CERTOPT_X_FWD) != 0) |
| 1560 | add_flag_option(c, "permit-X11-forwarding"); |
| 1561 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1562 | (certflags_flags & CERTOPT_AGENT_FWD) != 0) |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1563 | add_flag_option(c, "permit-agent-forwarding"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1564 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
| 1565 | (certflags_flags & CERTOPT_PORT_FWD) != 0) |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1566 | add_flag_option(c, "permit-port-forwarding"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1567 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
| 1568 | (certflags_flags & CERTOPT_PTY) != 0) |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1569 | add_flag_option(c, "permit-pty"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1570 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
| 1571 | (certflags_flags & CERTOPT_USER_RC) != 0) |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1572 | add_flag_option(c, "permit-user-rc"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1573 | if ((which & OPTIONS_CRITICAL) != 0 && |
| 1574 | certflags_src_addr != NULL) |
| 1575 | add_string_option(c, "source-address", certflags_src_addr); |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 1576 | for (i = 0; i < ncert_userext; i++) { |
| 1577 | if ((cert_userext[i].crit && (which & OPTIONS_EXTENSIONS)) || |
| 1578 | (!cert_userext[i].crit && (which & OPTIONS_CRITICAL))) |
| 1579 | continue; |
| 1580 | if (cert_userext[i].val == NULL) |
| 1581 | add_flag_option(c, cert_userext[i].key); |
| 1582 | else { |
| 1583 | add_string_option(c, cert_userext[i].key, |
| 1584 | cert_userext[i].val); |
| 1585 | } |
| 1586 | } |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1587 | } |
| 1588 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1589 | static struct sshkey * |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1590 | load_pkcs11_key(char *path) |
| 1591 | { |
| 1592 | #ifdef ENABLE_PKCS11 |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1593 | struct sshkey **keys = NULL, *public, *private = NULL; |
| 1594 | int r, i, nkeys; |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1595 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1596 | if ((r = sshkey_load_public(path, &public, NULL)) != 0) |
| 1597 | fatal("Couldn't load CA public key \"%s\": %s", |
| 1598 | path, ssh_err(r)); |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1599 | |
| 1600 | nkeys = pkcs11_add_provider(pkcs11provider, identity_passphrase, &keys); |
| 1601 | debug3("%s: %d keys", __func__, nkeys); |
| 1602 | if (nkeys <= 0) |
| 1603 | fatal("cannot read public key from pkcs11"); |
| 1604 | for (i = 0; i < nkeys; i++) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1605 | if (sshkey_equal_public(public, keys[i])) { |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1606 | private = keys[i]; |
| 1607 | continue; |
| 1608 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1609 | sshkey_free(keys[i]); |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1610 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1611 | free(keys); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1612 | sshkey_free(public); |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1613 | return private; |
| 1614 | #else |
| 1615 | fatal("no pkcs11 support"); |
| 1616 | #endif /* ENABLE_PKCS11 */ |
| 1617 | } |
| 1618 | |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1619 | /* Signer for sshkey_certify_custom that uses the agent */ |
| 1620 | static int |
| 1621 | agent_signer(const struct sshkey *key, u_char **sigp, size_t *lenp, |
| 1622 | const u_char *data, size_t datalen, |
| 1623 | const char *alg, u_int compat, void *ctx) |
| 1624 | { |
| 1625 | int *agent_fdp = (int *)ctx; |
| 1626 | |
| 1627 | return ssh_agent_sign(*agent_fdp, key, sigp, lenp, |
| 1628 | data, datalen, alg, compat); |
| 1629 | } |
| 1630 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1631 | static void |
| 1632 | do_ca_sign(struct passwd *pw, int argc, char **argv) |
| 1633 | { |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1634 | int r, i, fd, found, agent_fd = -1; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1635 | u_int n; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1636 | struct sshkey *ca, *public; |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1637 | char valid[64], *otmp, *tmp, *cp, *out, *comment, **plist = NULL; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1638 | FILE *f; |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1639 | struct ssh_identitylist *agent_ids; |
| 1640 | size_t j; |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1641 | |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 1642 | #ifdef ENABLE_PKCS11 |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1643 | pkcs11_init(1); |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 1644 | #endif |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1645 | tmp = tilde_expand_filename(ca_key_path, pw->pw_uid); |
| 1646 | if (pkcs11provider != NULL) { |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1647 | /* If a PKCS#11 token was specified then try to use it */ |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1648 | if ((ca = load_pkcs11_key(tmp)) == NULL) |
| 1649 | fatal("No PKCS#11 key matching %s found", ca_key_path); |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1650 | } else if (prefer_agent) { |
| 1651 | /* |
| 1652 | * Agent signature requested. Try to use agent after making |
| 1653 | * sure the public key specified is actually present in the |
| 1654 | * agent. |
| 1655 | */ |
| 1656 | if ((r = sshkey_load_public(tmp, &ca, NULL)) != 0) |
| 1657 | fatal("Cannot load CA public key %s: %s", |
| 1658 | tmp, ssh_err(r)); |
| 1659 | if ((r = ssh_get_authentication_socket(&agent_fd)) != 0) |
| 1660 | fatal("Cannot use public key for CA signature: %s", |
| 1661 | ssh_err(r)); |
| 1662 | if ((r = ssh_fetch_identitylist(agent_fd, &agent_ids)) != 0) |
| 1663 | fatal("Retrieve agent key list: %s", ssh_err(r)); |
| 1664 | found = 0; |
| 1665 | for (j = 0; j < agent_ids->nkeys; j++) { |
| 1666 | if (sshkey_equal(ca, agent_ids->keys[j])) { |
| 1667 | found = 1; |
| 1668 | break; |
| 1669 | } |
| 1670 | } |
| 1671 | if (!found) |
| 1672 | fatal("CA key %s not found in agent", tmp); |
| 1673 | ssh_free_identitylist(agent_ids); |
| 1674 | ca->flags |= SSHKEY_FLAG_EXT; |
| 1675 | } else { |
| 1676 | /* CA key is assumed to be a private key on the filesystem */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1677 | ca = load_identity(tmp); |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1678 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1679 | free(tmp); |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1680 | |
djm@openbsd.org | 57464e3 | 2016-05-02 09:36:42 +0000 | [diff] [blame] | 1681 | if (key_type_name != NULL && |
| 1682 | sshkey_type_from_name(key_type_name) != ca->type) { |
| 1683 | fatal("CA key type %s doesn't match specified %s", |
| 1684 | sshkey_ssh_name(ca), key_type_name); |
| 1685 | } |
| 1686 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1687 | for (i = 0; i < argc; i++) { |
| 1688 | /* Split list of principals */ |
| 1689 | n = 0; |
| 1690 | if (cert_principals != NULL) { |
| 1691 | otmp = tmp = xstrdup(cert_principals); |
| 1692 | plist = NULL; |
| 1693 | for (; (cp = strsep(&tmp, ",")) != NULL; n++) { |
deraadt@openbsd.org | 657a5fb | 2015-04-24 01:36:00 +0000 | [diff] [blame] | 1694 | plist = xreallocarray(plist, n + 1, sizeof(*plist)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1695 | if (*(plist[n] = xstrdup(cp)) == '\0') |
| 1696 | fatal("Empty principal name"); |
| 1697 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1698 | free(otmp); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1699 | } |
| 1700 | |
| 1701 | tmp = tilde_expand_filename(argv[i], pw->pw_uid); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1702 | if ((r = sshkey_load_public(tmp, &public, &comment)) != 0) |
| 1703 | fatal("%s: unable to open \"%s\": %s", |
| 1704 | __func__, tmp, ssh_err(r)); |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 1705 | if (public->type != KEY_RSA && public->type != KEY_DSA && |
Damien Miller | 5be9d9e | 2013-12-07 11:24:01 +1100 | [diff] [blame] | 1706 | public->type != KEY_ECDSA && public->type != KEY_ED25519) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1707 | fatal("%s: key \"%s\" type %s cannot be certified", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1708 | __func__, tmp, sshkey_type(public)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1709 | |
| 1710 | /* Prepare certificate to sign */ |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1711 | if ((r = sshkey_to_certified(public)) != 0) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1712 | fatal("Could not upgrade key %s to certificate: %s", |
| 1713 | tmp, ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1714 | public->cert->type = cert_key_type; |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1715 | public->cert->serial = (u_int64_t)cert_serial; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1716 | public->cert->key_id = xstrdup(cert_key_id); |
| 1717 | public->cert->nprincipals = n; |
| 1718 | public->cert->principals = plist; |
| 1719 | public->cert->valid_after = cert_valid_from; |
| 1720 | public->cert->valid_before = cert_valid_to; |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1721 | prepare_options_buf(public->cert->critical, OPTIONS_CRITICAL); |
| 1722 | prepare_options_buf(public->cert->extensions, |
| 1723 | OPTIONS_EXTENSIONS); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1724 | if ((r = sshkey_from_private(ca, |
| 1725 | &public->cert->signature_key)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 1726 | fatal("sshkey_from_private (ca key): %s", ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1727 | |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1728 | if (agent_fd != -1 && (ca->flags & SSHKEY_FLAG_EXT) != 0) { |
| 1729 | if ((r = sshkey_certify_custom(public, ca, |
| 1730 | key_type_name, agent_signer, &agent_fd)) != 0) |
| 1731 | fatal("Couldn't certify key %s via agent: %s", |
| 1732 | tmp, ssh_err(r)); |
| 1733 | } else { |
| 1734 | if ((sshkey_certify(public, ca, key_type_name)) != 0) |
| 1735 | fatal("Couldn't certify key %s: %s", |
| 1736 | tmp, ssh_err(r)); |
| 1737 | } |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1738 | |
| 1739 | if ((cp = strrchr(tmp, '.')) != NULL && strcmp(cp, ".pub") == 0) |
| 1740 | *cp = '\0'; |
| 1741 | xasprintf(&out, "%s-cert.pub", tmp); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1742 | free(tmp); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1743 | |
| 1744 | if ((fd = open(out, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) |
| 1745 | fatal("Could not open \"%s\" for writing: %s", out, |
| 1746 | strerror(errno)); |
| 1747 | if ((f = fdopen(fd, "w")) == NULL) |
| 1748 | fatal("%s: fdopen: %s", __func__, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1749 | if ((r = sshkey_write(public, f)) != 0) |
| 1750 | fatal("Could not write certified key to %s: %s", |
| 1751 | out, ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1752 | fprintf(f, " %s\n", comment); |
| 1753 | fclose(f); |
| 1754 | |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1755 | if (!quiet) { |
djm@openbsd.org | 964ab3e | 2015-11-19 01:12:32 +0000 | [diff] [blame] | 1756 | sshkey_format_cert_validity(public->cert, |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1757 | valid, sizeof(valid)); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1758 | logit("Signed %s key %s: id \"%s\" serial %llu%s%s " |
djm@openbsd.org | 964ab3e | 2015-11-19 01:12:32 +0000 | [diff] [blame] | 1759 | "valid %s", sshkey_cert_type(public), |
Damien Miller | 821de0a | 2011-01-11 17:20:29 +1100 | [diff] [blame] | 1760 | out, public->cert->key_id, |
| 1761 | (unsigned long long)public->cert->serial, |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1762 | cert_principals != NULL ? " for " : "", |
| 1763 | cert_principals != NULL ? cert_principals : "", |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1764 | valid); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1765 | } |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1766 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1767 | sshkey_free(public); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1768 | free(out); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1769 | } |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 1770 | #ifdef ENABLE_PKCS11 |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1771 | pkcs11_terminate(); |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 1772 | #endif |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1773 | exit(0); |
| 1774 | } |
| 1775 | |
| 1776 | static u_int64_t |
| 1777 | parse_relative_time(const char *s, time_t now) |
| 1778 | { |
| 1779 | int64_t mul, secs; |
| 1780 | |
| 1781 | mul = *s == '-' ? -1 : 1; |
| 1782 | |
| 1783 | if ((secs = convtime(s + 1)) == -1) |
| 1784 | fatal("Invalid relative certificate time %s", s); |
| 1785 | if (mul == -1 && secs > now) |
| 1786 | fatal("Certificate time %s cannot be represented", s); |
| 1787 | return now + (u_int64_t)(secs * mul); |
| 1788 | } |
| 1789 | |
| 1790 | static u_int64_t |
| 1791 | parse_absolute_time(const char *s) |
| 1792 | { |
| 1793 | struct tm tm; |
| 1794 | time_t tt; |
Damien Miller | 2ca342b | 2010-03-03 12:14:15 +1100 | [diff] [blame] | 1795 | char buf[32], *fmt; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1796 | |
Damien Miller | 2ca342b | 2010-03-03 12:14:15 +1100 | [diff] [blame] | 1797 | /* |
djm@openbsd.org | 964ab3e | 2015-11-19 01:12:32 +0000 | [diff] [blame] | 1798 | * POSIX strptime says "The application shall ensure that there |
Damien Miller | 2ca342b | 2010-03-03 12:14:15 +1100 | [diff] [blame] | 1799 | * is white-space or other non-alphanumeric characters between |
| 1800 | * any two conversion specifications" so arrange things this way. |
| 1801 | */ |
| 1802 | switch (strlen(s)) { |
| 1803 | case 8: |
Damien Miller | 3e1ee49 | 2010-03-08 09:24:11 +1100 | [diff] [blame] | 1804 | fmt = "%Y-%m-%d"; |
| 1805 | snprintf(buf, sizeof(buf), "%.4s-%.2s-%.2s", s, s + 4, s + 6); |
Damien Miller | 2ca342b | 2010-03-03 12:14:15 +1100 | [diff] [blame] | 1806 | break; |
| 1807 | case 14: |
Damien Miller | 3e1ee49 | 2010-03-08 09:24:11 +1100 | [diff] [blame] | 1808 | fmt = "%Y-%m-%dT%H:%M:%S"; |
| 1809 | snprintf(buf, sizeof(buf), "%.4s-%.2s-%.2sT%.2s:%.2s:%.2s", |
Damien Miller | 2ca342b | 2010-03-03 12:14:15 +1100 | [diff] [blame] | 1810 | s, s + 4, s + 6, s + 8, s + 10, s + 12); |
| 1811 | break; |
| 1812 | default: |
djm@openbsd.org@openbsd.org | d52131a | 2017-11-03 05:14:04 +0000 | [diff] [blame] | 1813 | fatal("Invalid certificate time format \"%s\"", s); |
Damien Miller | 2ca342b | 2010-03-03 12:14:15 +1100 | [diff] [blame] | 1814 | } |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1815 | |
Damien Miller | 1d2c456 | 2014-02-04 11:18:20 +1100 | [diff] [blame] | 1816 | memset(&tm, 0, sizeof(tm)); |
Damien Miller | 2ca342b | 2010-03-03 12:14:15 +1100 | [diff] [blame] | 1817 | if (strptime(buf, fmt, &tm) == NULL) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1818 | fatal("Invalid certificate time %s", s); |
| 1819 | if ((tt = mktime(&tm)) < 0) |
| 1820 | fatal("Certificate time %s cannot be represented", s); |
| 1821 | return (u_int64_t)tt; |
| 1822 | } |
| 1823 | |
| 1824 | static void |
| 1825 | parse_cert_times(char *timespec) |
| 1826 | { |
| 1827 | char *from, *to; |
| 1828 | time_t now = time(NULL); |
| 1829 | int64_t secs; |
| 1830 | |
| 1831 | /* +timespec relative to now */ |
| 1832 | if (*timespec == '+' && strchr(timespec, ':') == NULL) { |
| 1833 | if ((secs = convtime(timespec + 1)) == -1) |
| 1834 | fatal("Invalid relative certificate life %s", timespec); |
| 1835 | cert_valid_to = now + secs; |
| 1836 | /* |
| 1837 | * Backdate certificate one minute to avoid problems on hosts |
| 1838 | * with poorly-synchronised clocks. |
| 1839 | */ |
| 1840 | cert_valid_from = ((now - 59)/ 60) * 60; |
| 1841 | return; |
| 1842 | } |
| 1843 | |
| 1844 | /* |
| 1845 | * from:to, where |
djm@openbsd.org@openbsd.org | d52131a | 2017-11-03 05:14:04 +0000 | [diff] [blame] | 1846 | * from := [+-]timespec | YYYYMMDD | YYYYMMDDHHMMSS | "always" |
| 1847 | * to := [+-]timespec | YYYYMMDD | YYYYMMDDHHMMSS | "forever" |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1848 | */ |
| 1849 | from = xstrdup(timespec); |
| 1850 | to = strchr(from, ':'); |
| 1851 | if (to == NULL || from == to || *(to + 1) == '\0') |
Damien Miller | 910f209 | 2010-03-04 14:17:22 +1100 | [diff] [blame] | 1852 | fatal("Invalid certificate life specification %s", timespec); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1853 | *to++ = '\0'; |
| 1854 | |
| 1855 | if (*from == '-' || *from == '+') |
| 1856 | cert_valid_from = parse_relative_time(from, now); |
djm@openbsd.org@openbsd.org | d52131a | 2017-11-03 05:14:04 +0000 | [diff] [blame] | 1857 | else if (strcmp(from, "always") == 0) |
| 1858 | cert_valid_from = 0; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1859 | else |
| 1860 | cert_valid_from = parse_absolute_time(from); |
| 1861 | |
| 1862 | if (*to == '-' || *to == '+') |
Damien Miller | 5b01b0d | 2013-10-23 16:31:31 +1100 | [diff] [blame] | 1863 | cert_valid_to = parse_relative_time(to, now); |
djm@openbsd.org@openbsd.org | d52131a | 2017-11-03 05:14:04 +0000 | [diff] [blame] | 1864 | else if (strcmp(to, "forever") == 0) |
| 1865 | cert_valid_to = ~(u_int64_t)0; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1866 | else |
| 1867 | cert_valid_to = parse_absolute_time(to); |
| 1868 | |
| 1869 | if (cert_valid_to <= cert_valid_from) |
| 1870 | fatal("Empty certificate validity interval"); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1871 | free(from); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1872 | } |
| 1873 | |
| 1874 | static void |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1875 | add_cert_option(char *opt) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1876 | { |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 1877 | char *val, *cp; |
| 1878 | int iscrit = 0; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1879 | |
Damien Miller | 044f4a6 | 2011-05-05 14:14:08 +1000 | [diff] [blame] | 1880 | if (strcasecmp(opt, "clear") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1881 | certflags_flags = 0; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1882 | else if (strcasecmp(opt, "no-x11-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1883 | certflags_flags &= ~CERTOPT_X_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1884 | else if (strcasecmp(opt, "permit-x11-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1885 | certflags_flags |= CERTOPT_X_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1886 | else if (strcasecmp(opt, "no-agent-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1887 | certflags_flags &= ~CERTOPT_AGENT_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1888 | else if (strcasecmp(opt, "permit-agent-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1889 | certflags_flags |= CERTOPT_AGENT_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1890 | else if (strcasecmp(opt, "no-port-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1891 | certflags_flags &= ~CERTOPT_PORT_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1892 | else if (strcasecmp(opt, "permit-port-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1893 | certflags_flags |= CERTOPT_PORT_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1894 | else if (strcasecmp(opt, "no-pty") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1895 | certflags_flags &= ~CERTOPT_PTY; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1896 | else if (strcasecmp(opt, "permit-pty") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1897 | certflags_flags |= CERTOPT_PTY; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1898 | else if (strcasecmp(opt, "no-user-rc") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1899 | certflags_flags &= ~CERTOPT_USER_RC; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1900 | else if (strcasecmp(opt, "permit-user-rc") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1901 | certflags_flags |= CERTOPT_USER_RC; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1902 | else if (strncasecmp(opt, "force-command=", 14) == 0) { |
| 1903 | val = opt + 14; |
| 1904 | if (*val == '\0') |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1905 | fatal("Empty force-command option"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1906 | if (certflags_command != NULL) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1907 | fatal("force-command already specified"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1908 | certflags_command = xstrdup(val); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1909 | } else if (strncasecmp(opt, "source-address=", 15) == 0) { |
| 1910 | val = opt + 15; |
| 1911 | if (*val == '\0') |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1912 | fatal("Empty source-address option"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1913 | if (certflags_src_addr != NULL) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1914 | fatal("source-address already specified"); |
| 1915 | if (addr_match_cidr_list(NULL, val) != 0) |
| 1916 | fatal("Invalid source-address list"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1917 | certflags_src_addr = xstrdup(val); |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 1918 | } else if (strncasecmp(opt, "extension:", 10) == 0 || |
| 1919 | (iscrit = (strncasecmp(opt, "critical:", 9) == 0))) { |
| 1920 | val = xstrdup(strchr(opt, ':') + 1); |
| 1921 | if ((cp = strchr(val, '=')) != NULL) |
| 1922 | *cp++ = '\0'; |
| 1923 | cert_userext = xreallocarray(cert_userext, ncert_userext + 1, |
| 1924 | sizeof(*cert_userext)); |
| 1925 | cert_userext[ncert_userext].key = val; |
| 1926 | cert_userext[ncert_userext].val = cp == NULL ? |
| 1927 | NULL : xstrdup(cp); |
| 1928 | cert_userext[ncert_userext].crit = iscrit; |
| 1929 | ncert_userext++; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1930 | } else |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1931 | fatal("Unsupported certificate option \"%s\"", opt); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1932 | } |
| 1933 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1934 | static void |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1935 | show_options(struct sshbuf *optbuf, int in_critical) |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1936 | { |
Damien Miller | 633de33 | 2014-05-15 13:48:26 +1000 | [diff] [blame] | 1937 | char *name, *arg; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1938 | struct sshbuf *options, *option = NULL; |
| 1939 | int r; |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1940 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1941 | if ((options = sshbuf_fromb(optbuf)) == NULL) |
| 1942 | fatal("%s: sshbuf_fromb failed", __func__); |
| 1943 | while (sshbuf_len(options) != 0) { |
| 1944 | sshbuf_free(option); |
| 1945 | option = NULL; |
| 1946 | if ((r = sshbuf_get_cstring(options, &name, NULL)) != 0 || |
| 1947 | (r = sshbuf_froms(options, &option)) != 0) |
| 1948 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1949 | printf(" %s", name); |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1950 | if (!in_critical && |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1951 | (strcmp(name, "permit-X11-forwarding") == 0 || |
| 1952 | strcmp(name, "permit-agent-forwarding") == 0 || |
| 1953 | strcmp(name, "permit-port-forwarding") == 0 || |
| 1954 | strcmp(name, "permit-pty") == 0 || |
| 1955 | strcmp(name, "permit-user-rc") == 0)) |
| 1956 | printf("\n"); |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1957 | else if (in_critical && |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1958 | (strcmp(name, "force-command") == 0 || |
| 1959 | strcmp(name, "source-address") == 0)) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1960 | if ((r = sshbuf_get_cstring(option, &arg, NULL)) != 0) |
| 1961 | fatal("%s: buffer error: %s", |
| 1962 | __func__, ssh_err(r)); |
Damien Miller | 633de33 | 2014-05-15 13:48:26 +1000 | [diff] [blame] | 1963 | printf(" %s\n", arg); |
| 1964 | free(arg); |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1965 | } else { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1966 | printf(" UNKNOWN OPTION (len %zu)\n", |
| 1967 | sshbuf_len(option)); |
| 1968 | sshbuf_reset(option); |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1969 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1970 | free(name); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1971 | if (sshbuf_len(option) != 0) |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1972 | fatal("Option corrupt: extra data at end"); |
| 1973 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1974 | sshbuf_free(option); |
| 1975 | sshbuf_free(options); |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1976 | } |
| 1977 | |
| 1978 | static void |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 1979 | print_cert(struct sshkey *key) |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 1980 | { |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1981 | char valid[64], *key_fp, *ca_fp; |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1982 | u_int i; |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1983 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1984 | key_fp = sshkey_fingerprint(key, fingerprint_hash, SSH_FP_DEFAULT); |
| 1985 | ca_fp = sshkey_fingerprint(key->cert->signature_key, |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 1986 | fingerprint_hash, SSH_FP_DEFAULT); |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 1987 | if (key_fp == NULL || ca_fp == NULL) |
| 1988 | fatal("%s: sshkey_fingerprint fail", __func__); |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1989 | sshkey_format_cert_validity(key->cert, valid, sizeof(valid)); |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 1990 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1991 | printf(" Type: %s %s certificate\n", sshkey_ssh_name(key), |
| 1992 | sshkey_cert_type(key)); |
| 1993 | printf(" Public key: %s %s\n", sshkey_type(key), key_fp); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1994 | printf(" Signing CA: %s %s\n", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1995 | sshkey_type(key->cert->signature_key), ca_fp); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1996 | printf(" Key ID: \"%s\"\n", key->cert->key_id); |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1997 | printf(" Serial: %llu\n", (unsigned long long)key->cert->serial); |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1998 | printf(" Valid: %s\n", valid); |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 1999 | printf(" Principals: "); |
| 2000 | if (key->cert->nprincipals == 0) |
| 2001 | printf("(none)\n"); |
| 2002 | else { |
| 2003 | for (i = 0; i < key->cert->nprincipals; i++) |
| 2004 | printf("\n %s", |
| 2005 | key->cert->principals[i]); |
| 2006 | printf("\n"); |
| 2007 | } |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 2008 | printf(" Critical Options: "); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2009 | if (sshbuf_len(key->cert->critical) == 0) |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 2010 | printf("(none)\n"); |
| 2011 | else { |
| 2012 | printf("\n"); |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 2013 | show_options(key->cert->critical, 1); |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 2014 | } |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 2015 | printf(" Extensions: "); |
| 2016 | if (sshbuf_len(key->cert->extensions) == 0) |
| 2017 | printf("(none)\n"); |
| 2018 | else { |
| 2019 | printf("\n"); |
| 2020 | show_options(key->cert->extensions, 0); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 2021 | } |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2022 | } |
| 2023 | |
| 2024 | static void |
| 2025 | do_show_cert(struct passwd *pw) |
| 2026 | { |
| 2027 | struct sshkey *key = NULL; |
| 2028 | struct stat st; |
| 2029 | int r, is_stdin = 0, ok = 0; |
| 2030 | FILE *f; |
djm@openbsd.org | cce6a36 | 2015-12-11 03:19:09 +0000 | [diff] [blame] | 2031 | char *cp, line[SSH_MAX_PUBKEY_BYTES]; |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2032 | const char *path; |
djm@openbsd.org | 1a31d02 | 2016-05-02 08:49:03 +0000 | [diff] [blame] | 2033 | u_long lnum = 0; |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2034 | |
| 2035 | if (!have_identity) |
| 2036 | ask_filename(pw, "Enter file in which the key is"); |
| 2037 | if (strcmp(identity_file, "-") != 0 && stat(identity_file, &st) < 0) |
| 2038 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
| 2039 | |
| 2040 | path = identity_file; |
| 2041 | if (strcmp(path, "-") == 0) { |
| 2042 | f = stdin; |
| 2043 | path = "(stdin)"; |
| 2044 | is_stdin = 1; |
| 2045 | } else if ((f = fopen(identity_file, "r")) == NULL) |
| 2046 | fatal("fopen %s: %s", identity_file, strerror(errno)); |
| 2047 | |
| 2048 | while (read_keyfile_line(f, path, line, sizeof(line), &lnum) == 0) { |
| 2049 | sshkey_free(key); |
| 2050 | key = NULL; |
| 2051 | /* Trim leading space and comments */ |
| 2052 | cp = line + strspn(line, " \t"); |
| 2053 | if (*cp == '#' || *cp == '\0') |
| 2054 | continue; |
| 2055 | if ((key = sshkey_new(KEY_UNSPEC)) == NULL) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 2056 | fatal("sshkey_new"); |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2057 | if ((r = sshkey_read(key, &cp)) != 0) { |
| 2058 | error("%s:%lu: invalid key: %s", path, |
| 2059 | lnum, ssh_err(r)); |
| 2060 | continue; |
| 2061 | } |
| 2062 | if (!sshkey_is_cert(key)) { |
| 2063 | error("%s:%lu is not a certificate", path, lnum); |
| 2064 | continue; |
| 2065 | } |
| 2066 | ok = 1; |
| 2067 | if (!is_stdin && lnum == 1) |
| 2068 | printf("%s:\n", path); |
| 2069 | else |
| 2070 | printf("%s:%lu:\n", path, lnum); |
| 2071 | print_cert(key); |
| 2072 | } |
| 2073 | sshkey_free(key); |
| 2074 | fclose(f); |
| 2075 | exit(ok ? 0 : 1); |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 2076 | } |
| 2077 | |
| 2078 | static void |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2079 | load_krl(const char *path, struct ssh_krl **krlp) |
| 2080 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2081 | struct sshbuf *krlbuf; |
| 2082 | int r, fd; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2083 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2084 | if ((krlbuf = sshbuf_new()) == NULL) |
| 2085 | fatal("sshbuf_new failed"); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2086 | if ((fd = open(path, O_RDONLY)) == -1) |
| 2087 | fatal("open %s: %s", path, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2088 | if ((r = sshkey_load_file(fd, krlbuf)) != 0) |
| 2089 | fatal("Unable to load KRL: %s", ssh_err(r)); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2090 | close(fd); |
| 2091 | /* XXX check sigs */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2092 | if ((r = ssh_krl_from_blob(krlbuf, krlp, NULL, 0)) != 0 || |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2093 | *krlp == NULL) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2094 | fatal("Invalid KRL file: %s", ssh_err(r)); |
| 2095 | sshbuf_free(krlbuf); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2096 | } |
| 2097 | |
| 2098 | static void |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2099 | update_krl_from_file(struct passwd *pw, const char *file, int wild_ca, |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2100 | const struct sshkey *ca, struct ssh_krl *krl) |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2101 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2102 | struct sshkey *key = NULL; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2103 | u_long lnum = 0; |
| 2104 | char *path, *cp, *ep, line[SSH_MAX_PUBKEY_BYTES]; |
| 2105 | unsigned long long serial, serial2; |
| 2106 | int i, was_explicit_key, was_sha1, r; |
| 2107 | FILE *krl_spec; |
| 2108 | |
| 2109 | path = tilde_expand_filename(file, pw->pw_uid); |
| 2110 | if (strcmp(path, "-") == 0) { |
| 2111 | krl_spec = stdin; |
| 2112 | free(path); |
| 2113 | path = xstrdup("(standard input)"); |
| 2114 | } else if ((krl_spec = fopen(path, "r")) == NULL) |
| 2115 | fatal("fopen %s: %s", path, strerror(errno)); |
| 2116 | |
| 2117 | if (!quiet) |
| 2118 | printf("Revoking from %s\n", path); |
| 2119 | while (read_keyfile_line(krl_spec, path, line, sizeof(line), |
| 2120 | &lnum) == 0) { |
| 2121 | was_explicit_key = was_sha1 = 0; |
| 2122 | cp = line + strspn(line, " \t"); |
| 2123 | /* Trim trailing space, comments and strip \n */ |
| 2124 | for (i = 0, r = -1; cp[i] != '\0'; i++) { |
| 2125 | if (cp[i] == '#' || cp[i] == '\n') { |
| 2126 | cp[i] = '\0'; |
| 2127 | break; |
| 2128 | } |
| 2129 | if (cp[i] == ' ' || cp[i] == '\t') { |
| 2130 | /* Remember the start of a span of whitespace */ |
| 2131 | if (r == -1) |
| 2132 | r = i; |
| 2133 | } else |
| 2134 | r = -1; |
| 2135 | } |
| 2136 | if (r != -1) |
| 2137 | cp[r] = '\0'; |
| 2138 | if (*cp == '\0') |
| 2139 | continue; |
| 2140 | if (strncasecmp(cp, "serial:", 7) == 0) { |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2141 | if (ca == NULL && !wild_ca) { |
Damien Miller | d234afb | 2013-08-21 02:42:58 +1000 | [diff] [blame] | 2142 | fatal("revoking certificates by serial number " |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2143 | "requires specification of a CA key"); |
| 2144 | } |
| 2145 | cp += 7; |
| 2146 | cp = cp + strspn(cp, " \t"); |
| 2147 | errno = 0; |
| 2148 | serial = strtoull(cp, &ep, 0); |
| 2149 | if (*cp == '\0' || (*ep != '\0' && *ep != '-')) |
| 2150 | fatal("%s:%lu: invalid serial \"%s\"", |
| 2151 | path, lnum, cp); |
| 2152 | if (errno == ERANGE && serial == ULLONG_MAX) |
| 2153 | fatal("%s:%lu: serial out of range", |
| 2154 | path, lnum); |
| 2155 | serial2 = serial; |
| 2156 | if (*ep == '-') { |
| 2157 | cp = ep + 1; |
| 2158 | errno = 0; |
| 2159 | serial2 = strtoull(cp, &ep, 0); |
| 2160 | if (*cp == '\0' || *ep != '\0') |
| 2161 | fatal("%s:%lu: invalid serial \"%s\"", |
| 2162 | path, lnum, cp); |
| 2163 | if (errno == ERANGE && serial2 == ULLONG_MAX) |
| 2164 | fatal("%s:%lu: serial out of range", |
| 2165 | path, lnum); |
| 2166 | if (serial2 <= serial) |
| 2167 | fatal("%s:%lu: invalid serial range " |
| 2168 | "%llu:%llu", path, lnum, |
| 2169 | (unsigned long long)serial, |
| 2170 | (unsigned long long)serial2); |
| 2171 | } |
| 2172 | if (ssh_krl_revoke_cert_by_serial_range(krl, |
| 2173 | ca, serial, serial2) != 0) { |
| 2174 | fatal("%s: revoke serial failed", |
| 2175 | __func__); |
| 2176 | } |
| 2177 | } else if (strncasecmp(cp, "id:", 3) == 0) { |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2178 | if (ca == NULL && !wild_ca) { |
Damien Miller | d5d9d7b | 2013-08-21 02:43:27 +1000 | [diff] [blame] | 2179 | fatal("revoking certificates by key ID " |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2180 | "requires specification of a CA key"); |
| 2181 | } |
| 2182 | cp += 3; |
| 2183 | cp = cp + strspn(cp, " \t"); |
| 2184 | if (ssh_krl_revoke_cert_by_key_id(krl, ca, cp) != 0) |
| 2185 | fatal("%s: revoke key ID failed", __func__); |
| 2186 | } else { |
| 2187 | if (strncasecmp(cp, "key:", 4) == 0) { |
| 2188 | cp += 4; |
| 2189 | cp = cp + strspn(cp, " \t"); |
| 2190 | was_explicit_key = 1; |
| 2191 | } else if (strncasecmp(cp, "sha1:", 5) == 0) { |
| 2192 | cp += 5; |
| 2193 | cp = cp + strspn(cp, " \t"); |
| 2194 | was_sha1 = 1; |
| 2195 | } else { |
| 2196 | /* |
| 2197 | * Just try to process the line as a key. |
| 2198 | * Parsing will fail if it isn't. |
| 2199 | */ |
| 2200 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2201 | if ((key = sshkey_new(KEY_UNSPEC)) == NULL) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 2202 | fatal("sshkey_new"); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2203 | if ((r = sshkey_read(key, &cp)) != 0) |
| 2204 | fatal("%s:%lu: invalid key: %s", |
| 2205 | path, lnum, ssh_err(r)); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2206 | if (was_explicit_key) |
| 2207 | r = ssh_krl_revoke_key_explicit(krl, key); |
| 2208 | else if (was_sha1) |
| 2209 | r = ssh_krl_revoke_key_sha1(krl, key); |
| 2210 | else |
| 2211 | r = ssh_krl_revoke_key(krl, key); |
| 2212 | if (r != 0) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2213 | fatal("%s: revoke key failed: %s", |
| 2214 | __func__, ssh_err(r)); |
| 2215 | sshkey_free(key); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2216 | } |
| 2217 | } |
| 2218 | if (strcmp(path, "-") != 0) |
| 2219 | fclose(krl_spec); |
Damien Miller | 0d6771b | 2013-04-23 15:23:24 +1000 | [diff] [blame] | 2220 | free(path); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2221 | } |
| 2222 | |
| 2223 | static void |
| 2224 | do_gen_krl(struct passwd *pw, int updating, int argc, char **argv) |
| 2225 | { |
| 2226 | struct ssh_krl *krl; |
| 2227 | struct stat sb; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2228 | struct sshkey *ca = NULL; |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2229 | int fd, i, r, wild_ca = 0; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2230 | char *tmp; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2231 | struct sshbuf *kbuf; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2232 | |
| 2233 | if (*identity_file == '\0') |
| 2234 | fatal("KRL generation requires an output file"); |
| 2235 | if (stat(identity_file, &sb) == -1) { |
| 2236 | if (errno != ENOENT) |
| 2237 | fatal("Cannot access KRL \"%s\": %s", |
| 2238 | identity_file, strerror(errno)); |
| 2239 | if (updating) |
| 2240 | fatal("KRL \"%s\" does not exist", identity_file); |
| 2241 | } |
| 2242 | if (ca_key_path != NULL) { |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2243 | if (strcasecmp(ca_key_path, "none") == 0) |
| 2244 | wild_ca = 1; |
| 2245 | else { |
| 2246 | tmp = tilde_expand_filename(ca_key_path, pw->pw_uid); |
| 2247 | if ((r = sshkey_load_public(tmp, &ca, NULL)) != 0) |
| 2248 | fatal("Cannot load CA public key %s: %s", |
| 2249 | tmp, ssh_err(r)); |
| 2250 | free(tmp); |
| 2251 | } |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2252 | } |
| 2253 | |
| 2254 | if (updating) |
| 2255 | load_krl(identity_file, &krl); |
| 2256 | else if ((krl = ssh_krl_init()) == NULL) |
| 2257 | fatal("couldn't create KRL"); |
| 2258 | |
| 2259 | if (cert_serial != 0) |
| 2260 | ssh_krl_set_version(krl, cert_serial); |
| 2261 | if (identity_comment != NULL) |
| 2262 | ssh_krl_set_comment(krl, identity_comment); |
| 2263 | |
| 2264 | for (i = 0; i < argc; i++) |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2265 | update_krl_from_file(pw, argv[i], wild_ca, ca, krl); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2266 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2267 | if ((kbuf = sshbuf_new()) == NULL) |
| 2268 | fatal("sshbuf_new failed"); |
| 2269 | if (ssh_krl_to_blob(krl, kbuf, NULL, 0) != 0) |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2270 | fatal("Couldn't generate KRL"); |
| 2271 | if ((fd = open(identity_file, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) |
| 2272 | fatal("open %s: %s", identity_file, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2273 | if (atomicio(vwrite, fd, (void *)sshbuf_ptr(kbuf), sshbuf_len(kbuf)) != |
| 2274 | sshbuf_len(kbuf)) |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2275 | fatal("write %s: %s", identity_file, strerror(errno)); |
| 2276 | close(fd); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2277 | sshbuf_free(kbuf); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2278 | ssh_krl_free(krl); |
mmcc@openbsd.org | 89540b6 | 2015-12-11 02:31:47 +0000 | [diff] [blame] | 2279 | sshkey_free(ca); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2280 | } |
| 2281 | |
| 2282 | static void |
| 2283 | do_check_krl(struct passwd *pw, int argc, char **argv) |
| 2284 | { |
| 2285 | int i, r, ret = 0; |
| 2286 | char *comment; |
| 2287 | struct ssh_krl *krl; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2288 | struct sshkey *k; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2289 | |
| 2290 | if (*identity_file == '\0') |
| 2291 | fatal("KRL checking requires an input file"); |
| 2292 | load_krl(identity_file, &krl); |
| 2293 | for (i = 0; i < argc; i++) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2294 | if ((r = sshkey_load_public(argv[i], &k, &comment)) != 0) |
| 2295 | fatal("Cannot load public key %s: %s", |
| 2296 | argv[i], ssh_err(r)); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2297 | r = ssh_krl_check_key(krl, k); |
| 2298 | printf("%s%s%s%s: %s\n", argv[i], |
| 2299 | *comment ? " (" : "", comment, *comment ? ")" : "", |
| 2300 | r == 0 ? "ok" : "REVOKED"); |
| 2301 | if (r != 0) |
| 2302 | ret = 1; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2303 | sshkey_free(k); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2304 | free(comment); |
| 2305 | } |
| 2306 | ssh_krl_free(krl); |
| 2307 | exit(ret); |
| 2308 | } |
| 2309 | |
| 2310 | static void |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 2311 | usage(void) |
| 2312 | { |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2313 | fprintf(stderr, |
djm@openbsd.org | 873d3e7 | 2017-04-30 23:18:44 +0000 | [diff] [blame] | 2314 | "usage: ssh-keygen [-q] [-b bits] [-t dsa | ecdsa | ed25519 | rsa]\n" |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2315 | " [-N new_passphrase] [-C comment] [-f output_keyfile]\n" |
| 2316 | " ssh-keygen -p [-P old_passphrase] [-N new_passphrase] [-f keyfile]\n" |
| 2317 | " ssh-keygen -i [-m key_format] [-f input_keyfile]\n" |
| 2318 | " ssh-keygen -e [-m key_format] [-f input_keyfile]\n" |
| 2319 | " ssh-keygen -y [-f input_keyfile]\n" |
| 2320 | " ssh-keygen -c [-P passphrase] [-C comment] [-f keyfile]\n" |
naddy@openbsd.org | 6288e3a | 2015-02-24 15:24:05 +0000 | [diff] [blame] | 2321 | " ssh-keygen -l [-v] [-E fingerprint_hash] [-f input_keyfile]\n" |
djm@openbsd.org | 873d3e7 | 2017-04-30 23:18:44 +0000 | [diff] [blame] | 2322 | " ssh-keygen -B [-f input_keyfile]\n"); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 2323 | #ifdef ENABLE_PKCS11 |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2324 | fprintf(stderr, |
| 2325 | " ssh-keygen -D pkcs11\n"); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 2326 | #endif |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2327 | fprintf(stderr, |
| 2328 | " ssh-keygen -F hostname [-f known_hosts_file] [-l]\n" |
| 2329 | " ssh-keygen -H [-f known_hosts_file]\n" |
| 2330 | " ssh-keygen -R hostname [-f known_hosts_file]\n" |
| 2331 | " ssh-keygen -r hostname [-f input_keyfile] [-g]\n" |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2332 | #ifdef WITH_OPENSSL |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2333 | " ssh-keygen -G output_file [-v] [-b bits] [-M memory] [-S start_point]\n" |
| 2334 | " ssh-keygen -T output_file -f input_file [-v] [-a rounds] [-J num_lines]\n" |
| 2335 | " [-j start_line] [-K checkpt] [-W generator]\n" |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2336 | #endif |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 2337 | " ssh-keygen -s ca_key -I certificate_identity [-h] [-U]\n" |
| 2338 | " [-D pkcs11_provider] [-n principals] [-O option]\n" |
| 2339 | " [-V validity_interval] [-z serial_number] file ...\n" |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2340 | " ssh-keygen -L [-f input_keyfile]\n" |
| 2341 | " ssh-keygen -A\n" |
| 2342 | " ssh-keygen -k -f krl_file [-u] [-s ca_public] [-z version_number]\n" |
| 2343 | " file ...\n" |
| 2344 | " ssh-keygen -Q -f krl_file file ...\n"); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2345 | exit(1); |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 2346 | } |
| 2347 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2348 | /* |
| 2349 | * Main program for key management. |
| 2350 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 2351 | int |
Damien Miller | df8b7db | 2007-01-05 16:22:57 +1100 | [diff] [blame] | 2352 | main(int argc, char **argv) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 2353 | { |
deraadt@openbsd.org | 2ae4f33 | 2015-01-16 06:40:12 +0000 | [diff] [blame] | 2354 | char dotsshdir[PATH_MAX], comment[1024], *passphrase1, *passphrase2; |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2355 | char *rr_hostname = NULL, *ep, *fp, *ra; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2356 | struct sshkey *private, *public; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2357 | struct passwd *pw; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2358 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2359 | int r, opt, type, fd; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2360 | int gen_all_hostkeys = 0, gen_krl = 0, update_krl = 0, check_krl = 0; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2361 | FILE *f; |
Damien Miller | 02e754f | 2005-05-26 12:19:39 +1000 | [diff] [blame] | 2362 | const char *errstr; |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2363 | #ifdef WITH_OPENSSL |
| 2364 | /* Moduli generation/screening */ |
| 2365 | char out_file[PATH_MAX], *checkpoint = NULL; |
| 2366 | u_int32_t memory = 0, generator_wanted = 0; |
| 2367 | int do_gen_candidates = 0, do_screen_candidates = 0; |
| 2368 | unsigned long start_lineno = 0, lines_to_process = 0; |
| 2369 | BIGNUM *start = NULL; |
| 2370 | #endif |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 2371 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2372 | extern int optind; |
| 2373 | extern char *optarg; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 2374 | |
dtucker@openbsd.org | ffb1e7e | 2016-02-15 09:47:49 +0000 | [diff] [blame] | 2375 | ssh_malloc_init(); /* must be called before any mallocs */ |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 2376 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
| 2377 | sanitise_stdfd(); |
| 2378 | |
Darren Tucker | 9ac56e9 | 2007-01-14 10:19:59 +1100 | [diff] [blame] | 2379 | __progname = ssh_get_progname(argv[0]); |
Damien Miller | f9b625c | 2000-07-09 22:42:32 +1000 | [diff] [blame] | 2380 | |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 2381 | #ifdef WITH_OPENSSL |
Damien Miller | 4314c2b | 2010-09-10 11:12:09 +1000 | [diff] [blame] | 2382 | OpenSSL_add_all_algorithms(); |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 2383 | #endif |
Damien Miller | df8b7db | 2007-01-05 16:22:57 +1100 | [diff] [blame] | 2384 | log_init(argv[0], SYSLOG_LEVEL_INFO, SYSLOG_FACILITY_USER, 1); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2385 | |
Kevin Steves | 3a88191 | 2002-07-20 19:05:40 +0000 | [diff] [blame] | 2386 | seed_rng(); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2387 | |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 2388 | msetlocale(); |
| 2389 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 2390 | /* we need this for the home * directory. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2391 | pw = getpwuid(getuid()); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2392 | if (!pw) |
| 2393 | fatal("No user exists for uid %lu", (u_long)getuid()); |
| 2394 | if (gethostname(hostname, sizeof(hostname)) < 0) |
| 2395 | fatal("gethostname: %s", strerror(errno)); |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 2396 | |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 2397 | /* Remaining characters: Ydw */ |
| 2398 | while ((opt = getopt(argc, argv, "ABHLQUXceghiklopquvxy" |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 2399 | "C:D:E:F:G:I:J:K:M:N:O:P:R:S:T:V:W:Z:" |
| 2400 | "a:b:f:g:j:m:n:r:s:t:z:")) != -1) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2401 | switch (opt) { |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 2402 | case 'A': |
| 2403 | gen_all_hostkeys = 1; |
| 2404 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2405 | case 'b': |
Damien Miller | 5773794 | 2010-09-10 11:16:37 +1000 | [diff] [blame] | 2406 | bits = (u_int32_t)strtonum(optarg, 256, 32768, &errstr); |
Damien Miller | 02e754f | 2005-05-26 12:19:39 +1000 | [diff] [blame] | 2407 | if (errstr) |
| 2408 | fatal("Bits has bad value %s (%s)", |
| 2409 | optarg, errstr); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2410 | break; |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 2411 | case 'E': |
| 2412 | fingerprint_hash = ssh_digest_alg_by_name(optarg); |
| 2413 | if (fingerprint_hash == -1) |
| 2414 | fatal("Invalid hash algorithm \"%s\"", optarg); |
| 2415 | break; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2416 | case 'F': |
| 2417 | find_host = 1; |
| 2418 | rr_hostname = optarg; |
| 2419 | break; |
| 2420 | case 'H': |
| 2421 | hash_hosts = 1; |
| 2422 | break; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2423 | case 'I': |
| 2424 | cert_key_id = optarg; |
| 2425 | break; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2426 | case 'R': |
| 2427 | delete_host = 1; |
| 2428 | rr_hostname = optarg; |
| 2429 | break; |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 2430 | case 'L': |
| 2431 | show_cert = 1; |
| 2432 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2433 | case 'l': |
| 2434 | print_fingerprint = 1; |
| 2435 | break; |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 2436 | case 'B': |
| 2437 | print_bubblebabble = 1; |
| 2438 | break; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 2439 | case 'm': |
| 2440 | if (strcasecmp(optarg, "RFC4716") == 0 || |
| 2441 | strcasecmp(optarg, "ssh2") == 0) { |
| 2442 | convert_format = FMT_RFC4716; |
| 2443 | break; |
| 2444 | } |
| 2445 | if (strcasecmp(optarg, "PKCS8") == 0) { |
| 2446 | convert_format = FMT_PKCS8; |
| 2447 | break; |
| 2448 | } |
| 2449 | if (strcasecmp(optarg, "PEM") == 0) { |
| 2450 | convert_format = FMT_PEM; |
| 2451 | break; |
| 2452 | } |
| 2453 | fatal("Unsupported conversion format \"%s\"", optarg); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2454 | case 'n': |
| 2455 | cert_principals = optarg; |
| 2456 | break; |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 2457 | case 'o': |
| 2458 | use_new_format = 1; |
| 2459 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2460 | case 'p': |
| 2461 | change_passphrase = 1; |
| 2462 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2463 | case 'c': |
| 2464 | change_comment = 1; |
| 2465 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2466 | case 'f': |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2467 | if (strlcpy(identity_file, optarg, |
| 2468 | sizeof(identity_file)) >= sizeof(identity_file)) |
Damien Miller | b089fb5 | 2005-05-26 12:16:18 +1000 | [diff] [blame] | 2469 | fatal("Identity filename too long"); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2470 | have_identity = 1; |
| 2471 | break; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 2472 | case 'g': |
| 2473 | print_generic = 1; |
| 2474 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2475 | case 'P': |
| 2476 | identity_passphrase = optarg; |
| 2477 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2478 | case 'N': |
| 2479 | identity_new_passphrase = optarg; |
| 2480 | break; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2481 | case 'Q': |
| 2482 | check_krl = 1; |
| 2483 | break; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2484 | case 'O': |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 2485 | add_cert_option(optarg); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2486 | break; |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 2487 | case 'Z': |
| 2488 | new_format_cipher = optarg; |
| 2489 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2490 | case 'C': |
| 2491 | identity_comment = optarg; |
| 2492 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2493 | case 'q': |
| 2494 | quiet = 1; |
| 2495 | break; |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 2496 | case 'e': |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2497 | case 'x': |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 2498 | /* export key */ |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 2499 | convert_to = 1; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2500 | break; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2501 | case 'h': |
| 2502 | cert_key_type = SSH2_CERT_TYPE_HOST; |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 2503 | certflags_flags = 0; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2504 | break; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2505 | case 'k': |
| 2506 | gen_krl = 1; |
| 2507 | break; |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 2508 | case 'i': |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2509 | case 'X': |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 2510 | /* import key */ |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 2511 | convert_from = 1; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2512 | break; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2513 | case 'y': |
| 2514 | print_public = 1; |
| 2515 | break; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2516 | case 's': |
| 2517 | ca_key_path = optarg; |
| 2518 | break; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 2519 | case 't': |
| 2520 | key_type_name = optarg; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 2521 | break; |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 2522 | case 'D': |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 2523 | pkcs11provider = optarg; |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 2524 | break; |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 2525 | case 'U': |
| 2526 | prefer_agent = 1; |
| 2527 | break; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2528 | case 'u': |
| 2529 | update_krl = 1; |
| 2530 | break; |
Darren Tucker | 06930c7 | 2003-12-31 11:34:51 +1100 | [diff] [blame] | 2531 | case 'v': |
| 2532 | if (log_level == SYSLOG_LEVEL_INFO) |
| 2533 | log_level = SYSLOG_LEVEL_DEBUG1; |
| 2534 | else { |
Darren Tucker | fc95970 | 2004-07-17 16:12:08 +1000 | [diff] [blame] | 2535 | if (log_level >= SYSLOG_LEVEL_DEBUG1 && |
Darren Tucker | 06930c7 | 2003-12-31 11:34:51 +1100 | [diff] [blame] | 2536 | log_level < SYSLOG_LEVEL_DEBUG3) |
| 2537 | log_level++; |
| 2538 | } |
| 2539 | break; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 2540 | case 'r': |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2541 | rr_hostname = optarg; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 2542 | break; |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2543 | case 'a': |
| 2544 | rounds = (int)strtonum(optarg, 1, INT_MAX, &errstr); |
| 2545 | if (errstr) |
| 2546 | fatal("Invalid number: %s (%s)", |
| 2547 | optarg, errstr); |
| 2548 | break; |
| 2549 | case 'V': |
| 2550 | parse_cert_times(optarg); |
| 2551 | break; |
| 2552 | case 'z': |
| 2553 | errno = 0; |
| 2554 | cert_serial = strtoull(optarg, &ep, 10); |
| 2555 | if (*optarg < '0' || *optarg > '9' || *ep != '\0' || |
| 2556 | (errno == ERANGE && cert_serial == ULLONG_MAX)) |
| 2557 | fatal("Invalid serial number \"%s\"", optarg); |
| 2558 | break; |
| 2559 | #ifdef WITH_OPENSSL |
| 2560 | /* Moduli generation/screening */ |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2561 | case 'G': |
| 2562 | do_gen_candidates = 1; |
Damien Miller | b089fb5 | 2005-05-26 12:16:18 +1000 | [diff] [blame] | 2563 | if (strlcpy(out_file, optarg, sizeof(out_file)) >= |
| 2564 | sizeof(out_file)) |
| 2565 | fatal("Output filename too long"); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2566 | break; |
Darren Tucker | 0bb2980 | 2016-09-12 11:07:00 +1000 | [diff] [blame] | 2567 | case 'J': |
| 2568 | lines_to_process = strtoul(optarg, NULL, 10); |
dtucker@openbsd.org | 7b63cf6 | 2016-09-12 03:29:16 +0000 | [diff] [blame] | 2569 | break; |
Darren Tucker | 0bb2980 | 2016-09-12 11:07:00 +1000 | [diff] [blame] | 2570 | case 'j': |
| 2571 | start_lineno = strtoul(optarg, NULL, 10); |
dtucker@openbsd.org | 7b63cf6 | 2016-09-12 03:29:16 +0000 | [diff] [blame] | 2572 | break; |
Damien Miller | 390d056 | 2011-10-18 16:05:19 +1100 | [diff] [blame] | 2573 | case 'K': |
deraadt@openbsd.org | 2ae4f33 | 2015-01-16 06:40:12 +0000 | [diff] [blame] | 2574 | if (strlen(optarg) >= PATH_MAX) |
Damien Miller | 390d056 | 2011-10-18 16:05:19 +1100 | [diff] [blame] | 2575 | fatal("Checkpoint filename too long"); |
| 2576 | checkpoint = xstrdup(optarg); |
| 2577 | break; |
Darren Tucker | d8c3cfb | 2016-09-12 13:30:50 +1000 | [diff] [blame] | 2578 | case 'M': |
| 2579 | memory = (u_int32_t)strtonum(optarg, 1, UINT_MAX, |
| 2580 | &errstr); |
| 2581 | if (errstr) |
| 2582 | fatal("Memory limit is %s: %s", errstr, optarg); |
| 2583 | break; |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2584 | case 'S': |
| 2585 | /* XXX - also compare length against bits */ |
| 2586 | if (BN_hex2bn(&start, optarg) == 0) |
| 2587 | fatal("Invalid start point."); |
| 2588 | break; |
Darren Tucker | af48d54 | 2016-09-12 13:52:17 +1000 | [diff] [blame] | 2589 | case 'T': |
| 2590 | do_screen_candidates = 1; |
| 2591 | if (strlcpy(out_file, optarg, sizeof(out_file)) >= |
| 2592 | sizeof(out_file)) |
| 2593 | fatal("Output filename too long"); |
| 2594 | break; |
Darren Tucker | 43cceff | 2016-09-12 13:55:37 +1000 | [diff] [blame] | 2595 | case 'W': |
| 2596 | generator_wanted = (u_int32_t)strtonum(optarg, 1, |
| 2597 | UINT_MAX, &errstr); |
Darren Tucker | 7050896 | 2016-09-12 13:57:28 +1000 | [diff] [blame] | 2598 | if (errstr != NULL) |
| 2599 | fatal("Desired generator invalid: %s (%s)", |
| 2600 | optarg, errstr); |
Darren Tucker | 43cceff | 2016-09-12 13:55:37 +1000 | [diff] [blame] | 2601 | break; |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 2602 | #endif /* WITH_OPENSSL */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2603 | case '?': |
| 2604 | default: |
| 2605 | usage(); |
| 2606 | } |
| 2607 | } |
Darren Tucker | 06930c7 | 2003-12-31 11:34:51 +1100 | [diff] [blame] | 2608 | |
| 2609 | /* reinit */ |
Damien Miller | df8b7db | 2007-01-05 16:22:57 +1100 | [diff] [blame] | 2610 | log_init(argv[0], log_level, SYSLOG_FACILITY_USER, 1); |
Darren Tucker | 06930c7 | 2003-12-31 11:34:51 +1100 | [diff] [blame] | 2611 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2612 | argv += optind; |
| 2613 | argc -= optind; |
| 2614 | |
| 2615 | if (ca_key_path != NULL) { |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2616 | if (argc < 1 && !gen_krl) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2617 | error("Too few arguments."); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2618 | usage(); |
| 2619 | } |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2620 | } else if (argc > 0 && !gen_krl && !check_krl) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2621 | error("Too many arguments."); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2622 | usage(); |
| 2623 | } |
| 2624 | if (change_passphrase && change_comment) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2625 | error("Can only have one of -p and -c."); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2626 | usage(); |
| 2627 | } |
Darren Tucker | 0f7e910 | 2008-06-08 12:54:29 +1000 | [diff] [blame] | 2628 | if (print_fingerprint && (delete_host || hash_hosts)) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2629 | error("Cannot use -l with -H or -R."); |
Darren Tucker | 0f7e910 | 2008-06-08 12:54:29 +1000 | [diff] [blame] | 2630 | usage(); |
| 2631 | } |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2632 | if (gen_krl) { |
| 2633 | do_gen_krl(pw, update_krl, argc, argv); |
| 2634 | return (0); |
| 2635 | } |
| 2636 | if (check_krl) { |
| 2637 | do_check_krl(pw, argc, argv); |
| 2638 | return (0); |
| 2639 | } |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2640 | if (ca_key_path != NULL) { |
| 2641 | if (cert_key_id == NULL) |
| 2642 | fatal("Must specify key id (-I) when certifying"); |
| 2643 | do_ca_sign(pw, argc, argv); |
| 2644 | } |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 2645 | if (show_cert) |
| 2646 | do_show_cert(pw); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2647 | if (delete_host || hash_hosts || find_host) |
| 2648 | do_known_hosts(pw, rr_hostname); |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 2649 | if (pkcs11provider != NULL) |
| 2650 | do_download(pw); |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 2651 | if (print_fingerprint || print_bubblebabble) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2652 | do_fingerprint(pw); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2653 | if (change_passphrase) |
| 2654 | do_change_passphrase(pw); |
Damien Miller | 4a10d2e | 2002-03-11 22:53:29 +1100 | [diff] [blame] | 2655 | if (change_comment) |
| 2656 | do_change_comment(pw); |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 2657 | #ifdef WITH_OPENSSL |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 2658 | if (convert_to) |
| 2659 | do_convert_to(pw); |
| 2660 | if (convert_from) |
| 2661 | do_convert_from(pw); |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 2662 | #endif |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2663 | if (print_public) |
| 2664 | do_print_public(pw); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2665 | if (rr_hostname != NULL) { |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 2666 | unsigned int n = 0; |
| 2667 | |
| 2668 | if (have_identity) { |
| 2669 | n = do_print_resource_record(pw, |
| 2670 | identity_file, rr_hostname); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2671 | if (n == 0) |
| 2672 | fatal("%s: %s", identity_file, strerror(errno)); |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 2673 | exit(0); |
| 2674 | } else { |
| 2675 | |
| 2676 | n += do_print_resource_record(pw, |
| 2677 | _PATH_HOST_RSA_KEY_FILE, rr_hostname); |
| 2678 | n += do_print_resource_record(pw, |
| 2679 | _PATH_HOST_DSA_KEY_FILE, rr_hostname); |
Damien Miller | 3bde12a | 2012-06-20 21:51:11 +1000 | [diff] [blame] | 2680 | n += do_print_resource_record(pw, |
| 2681 | _PATH_HOST_ECDSA_KEY_FILE, rr_hostname); |
Damien Miller | 16cd392 | 2014-05-15 13:45:58 +1000 | [diff] [blame] | 2682 | n += do_print_resource_record(pw, |
| 2683 | _PATH_HOST_ED25519_KEY_FILE, rr_hostname); |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 2684 | if (n == 0) |
| 2685 | fatal("no keys found."); |
| 2686 | exit(0); |
| 2687 | } |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 2688 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2689 | |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2690 | #ifdef WITH_OPENSSL |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2691 | if (do_gen_candidates) { |
| 2692 | FILE *out = fopen(out_file, "w"); |
Damien Miller | 787b2ec | 2003-11-21 23:56:47 +1100 | [diff] [blame] | 2693 | |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2694 | if (out == NULL) { |
| 2695 | error("Couldn't open modulus candidate file \"%s\": %s", |
| 2696 | out_file, strerror(errno)); |
| 2697 | return (1); |
| 2698 | } |
Damien Miller | 3f54a9f | 2005-11-05 14:52:18 +1100 | [diff] [blame] | 2699 | if (bits == 0) |
| 2700 | bits = DEFAULT_BITS; |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2701 | if (gen_candidates(out, memory, bits, start) != 0) |
Damien Miller | 15d72a0 | 2005-11-05 15:07:33 +1100 | [diff] [blame] | 2702 | fatal("modulus candidate generation failed"); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2703 | |
| 2704 | return (0); |
| 2705 | } |
| 2706 | |
| 2707 | if (do_screen_candidates) { |
| 2708 | FILE *in; |
Damien Miller | 78d2271 | 2013-02-12 11:03:36 +1100 | [diff] [blame] | 2709 | FILE *out = fopen(out_file, "a"); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2710 | |
| 2711 | if (have_identity && strcmp(identity_file, "-") != 0) { |
| 2712 | if ((in = fopen(identity_file, "r")) == NULL) { |
| 2713 | fatal("Couldn't open modulus candidate " |
Damien Miller | a8e06ce | 2003-11-21 23:48:55 +1100 | [diff] [blame] | 2714 | "file \"%s\": %s", identity_file, |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2715 | strerror(errno)); |
| 2716 | } |
| 2717 | } else |
| 2718 | in = stdin; |
| 2719 | |
| 2720 | if (out == NULL) { |
| 2721 | fatal("Couldn't open moduli file \"%s\": %s", |
| 2722 | out_file, strerror(errno)); |
| 2723 | } |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 2724 | if (prime_test(in, out, rounds == 0 ? 100 : rounds, |
| 2725 | generator_wanted, checkpoint, |
Damien Miller | dfceafe | 2012-07-06 13:44:19 +1000 | [diff] [blame] | 2726 | start_lineno, lines_to_process) != 0) |
Damien Miller | 15d72a0 | 2005-11-05 15:07:33 +1100 | [diff] [blame] | 2727 | fatal("modulus screening failed"); |
Darren Tucker | f4220e6 | 2003-08-21 16:44:07 +1000 | [diff] [blame] | 2728 | return (0); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2729 | } |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2730 | #endif |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2731 | |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 2732 | if (gen_all_hostkeys) { |
| 2733 | do_gen_all_hostkeys(pw); |
| 2734 | return (0); |
| 2735 | } |
| 2736 | |
Damien Miller | f14be5c | 2005-11-05 15:15:49 +1100 | [diff] [blame] | 2737 | if (key_type_name == NULL) |
djm@openbsd.org | d195879 | 2015-05-28 04:40:13 +0000 | [diff] [blame] | 2738 | key_type_name = DEFAULT_KEY_TYPE_NAME; |
Damien Miller | f14be5c | 2005-11-05 15:15:49 +1100 | [diff] [blame] | 2739 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2740 | type = sshkey_type_from_name(key_type_name); |
djm@openbsd.org | 7efb455 | 2015-01-18 13:22:28 +0000 | [diff] [blame] | 2741 | type_bits_valid(type, key_type_name, &bits); |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 2742 | |
Darren Tucker | 3af2ac5 | 2005-11-29 13:10:24 +1100 | [diff] [blame] | 2743 | if (!quiet) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2744 | printf("Generating public/private %s key pair.\n", |
| 2745 | key_type_name); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2746 | if ((r = sshkey_generate(type, bits, &private)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 2747 | fatal("sshkey_generate failed"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2748 | if ((r = sshkey_from_private(private, &public)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 2749 | fatal("sshkey_from_private failed: %s\n", ssh_err(r)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2750 | |
| 2751 | if (!have_identity) |
| 2752 | ask_filename(pw, "Enter file in which to save the key"); |
| 2753 | |
Damien Miller | 788f212 | 2005-11-05 15:14:59 +1100 | [diff] [blame] | 2754 | /* Create ~/.ssh directory if it doesn't already exist. */ |
Damien Miller | 50af79b | 2010-05-10 11:52:00 +1000 | [diff] [blame] | 2755 | snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", |
| 2756 | pw->pw_dir, _PATH_SSH_USER_DIR); |
| 2757 | if (strstr(identity_file, dotsshdir) != NULL) { |
| 2758 | if (stat(dotsshdir, &st) < 0) { |
| 2759 | if (errno != ENOENT) { |
| 2760 | error("Could not stat %s: %s", dotsshdir, |
| 2761 | strerror(errno)); |
| 2762 | } else if (mkdir(dotsshdir, 0700) < 0) { |
| 2763 | error("Could not create directory '%s': %s", |
| 2764 | dotsshdir, strerror(errno)); |
| 2765 | } else if (!quiet) |
| 2766 | printf("Created directory '%s'.\n", dotsshdir); |
| 2767 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2768 | } |
| 2769 | /* If the file already exists, ask the user to confirm. */ |
| 2770 | if (stat(identity_file, &st) >= 0) { |
| 2771 | char yesno[3]; |
| 2772 | printf("%s already exists.\n", identity_file); |
| 2773 | printf("Overwrite (y/n)? "); |
| 2774 | fflush(stdout); |
| 2775 | if (fgets(yesno, sizeof(yesno), stdin) == NULL) |
| 2776 | exit(1); |
| 2777 | if (yesno[0] != 'y' && yesno[0] != 'Y') |
| 2778 | exit(1); |
| 2779 | } |
| 2780 | /* Ask for a passphrase (twice). */ |
| 2781 | if (identity_passphrase) |
| 2782 | passphrase1 = xstrdup(identity_passphrase); |
| 2783 | else if (identity_new_passphrase) |
| 2784 | passphrase1 = xstrdup(identity_new_passphrase); |
| 2785 | else { |
| 2786 | passphrase_again: |
| 2787 | passphrase1 = |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 2788 | read_passphrase("Enter passphrase (empty for no " |
| 2789 | "passphrase): ", RP_ALLOW_STDIN); |
| 2790 | passphrase2 = read_passphrase("Enter same passphrase again: ", |
| 2791 | RP_ALLOW_STDIN); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2792 | if (strcmp(passphrase1, passphrase2) != 0) { |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 2793 | /* |
| 2794 | * The passphrases do not match. Clear them and |
| 2795 | * retry. |
| 2796 | */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 2797 | explicit_bzero(passphrase1, strlen(passphrase1)); |
| 2798 | explicit_bzero(passphrase2, strlen(passphrase2)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2799 | free(passphrase1); |
| 2800 | free(passphrase2); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2801 | printf("Passphrases do not match. Try again.\n"); |
| 2802 | goto passphrase_again; |
| 2803 | } |
| 2804 | /* Clear the other copy of the passphrase. */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 2805 | explicit_bzero(passphrase2, strlen(passphrase2)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2806 | free(passphrase2); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2807 | } |
| 2808 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2809 | if (identity_comment) { |
| 2810 | strlcpy(comment, identity_comment, sizeof(comment)); |
| 2811 | } else { |
Darren Tucker | e15fb09 | 2008-11-11 16:31:43 +1100 | [diff] [blame] | 2812 | /* Create default comment field for the passphrase. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2813 | snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname); |
| 2814 | } |
| 2815 | |
| 2816 | /* Save the key with the given passphrase and comment. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2817 | if ((r = sshkey_save_private(private, identity_file, passphrase1, |
| 2818 | comment, use_new_format, new_format_cipher, rounds)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2819 | error("Saving key \"%s\" failed: %s", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2820 | identity_file, ssh_err(r)); |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 2821 | explicit_bzero(passphrase1, strlen(passphrase1)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2822 | free(passphrase1); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2823 | exit(1); |
| 2824 | } |
| 2825 | /* Clear the passphrase. */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 2826 | explicit_bzero(passphrase1, strlen(passphrase1)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2827 | free(passphrase1); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2828 | |
| 2829 | /* Clear the private key and the random number generator. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2830 | sshkey_free(private); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2831 | |
| 2832 | if (!quiet) |
| 2833 | printf("Your identification has been saved in %s.\n", identity_file); |
| 2834 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2835 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2836 | if ((fd = open(identity_file, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) |
| 2837 | fatal("Unable to save public key to %s: %s", |
| 2838 | identity_file, strerror(errno)); |
| 2839 | if ((f = fdopen(fd, "w")) == NULL) |
| 2840 | fatal("fdopen %s failed: %s", identity_file, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2841 | if ((r = sshkey_write(public, f)) != 0) |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2842 | error("write key failed: %s", ssh_err(r)); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2843 | fprintf(f, " %s\n", comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2844 | fclose(f); |
| 2845 | |
| 2846 | if (!quiet) { |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 2847 | fp = sshkey_fingerprint(public, fingerprint_hash, |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 2848 | SSH_FP_DEFAULT); |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 2849 | ra = sshkey_fingerprint(public, fingerprint_hash, |
Darren Tucker | 9c16ac9 | 2008-06-13 04:40:35 +1000 | [diff] [blame] | 2850 | SSH_FP_RANDOMART); |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 2851 | if (fp == NULL || ra == NULL) |
| 2852 | fatal("sshkey_fingerprint failed"); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2853 | printf("Your public key has been saved in %s.\n", |
| 2854 | identity_file); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2855 | printf("The key fingerprint is:\n"); |
Ben Lindstrom | cfccef9 | 2001-03-13 04:57:58 +0000 | [diff] [blame] | 2856 | printf("%s %s\n", fp, comment); |
Darren Tucker | 9c16ac9 | 2008-06-13 04:40:35 +1000 | [diff] [blame] | 2857 | printf("The key's randomart image is:\n"); |
| 2858 | printf("%s\n", ra); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2859 | free(ra); |
| 2860 | free(fp); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2861 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2862 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2863 | sshkey_free(public); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2864 | exit(0); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 2865 | } |