djm@openbsd.org | ed7bd5d | 2018-08-08 01:16:01 +0000 | [diff] [blame] | 1 | /* $OpenBSD: ssh-keygen.c,v 1.319 2018/08/08 01:16:01 djm 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 | 4d3b2f3 | 2018-07-12 14:49:14 +1000 | [diff] [blame] | 41 | #include <time.h> |
Damien Miller | 9f2abc4 | 2006-07-10 20:53:08 +1000 | [diff] [blame] | 42 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 43 | #include "xmalloc.h" |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 44 | #include "sshkey.h" |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 45 | #include "authfile.h" |
| 46 | #include "uuencode.h" |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 47 | #include "sshbuf.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 48 | #include "pathnames.h" |
| 49 | #include "log.h" |
Darren Tucker | e608ca2 | 2004-05-13 16:15:47 +1000 | [diff] [blame] | 50 | #include "misc.h" |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 51 | #include "match.h" |
| 52 | #include "hostfile.h" |
Damien Miller | 6999610 | 2006-07-10 20:53:31 +1000 | [diff] [blame] | 53 | #include "dns.h" |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 54 | #include "ssh.h" |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 55 | #include "ssh2.h" |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 56 | #include "ssherr.h" |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 57 | #include "ssh-pkcs11.h" |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 58 | #include "atomicio.h" |
| 59 | #include "krl.h" |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 60 | #include "digest.h" |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 61 | #include "utf8.h" |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 62 | #include "authfd.h" |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 63 | |
djm@openbsd.org | d195879 | 2015-05-28 04:40:13 +0000 | [diff] [blame] | 64 | #ifdef WITH_OPENSSL |
| 65 | # define DEFAULT_KEY_TYPE_NAME "rsa" |
| 66 | #else |
| 67 | # define DEFAULT_KEY_TYPE_NAME "ed25519" |
| 68 | #endif |
| 69 | |
Damien Miller | 3f54a9f | 2005-11-05 14:52:18 +1100 | [diff] [blame] | 70 | /* Number of bits in the RSA/DSA key. This value can be set on the command line. */ |
| 71 | #define DEFAULT_BITS 2048 |
| 72 | #define DEFAULT_BITS_DSA 1024 |
Damien Miller | 6e9f680 | 2010-09-10 11:17:38 +1000 | [diff] [blame] | 73 | #define DEFAULT_BITS_ECDSA 256 |
Damien Miller | 3f54a9f | 2005-11-05 14:52:18 +1100 | [diff] [blame] | 74 | u_int32_t bits = 0; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 75 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 76 | /* |
| 77 | * Flag indicating that we just want to change the passphrase. This can be |
| 78 | * set on the command line. |
| 79 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 80 | int change_passphrase = 0; |
| 81 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 82 | /* |
| 83 | * Flag indicating that we just want to change the comment. This can be set |
| 84 | * on the command line. |
| 85 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 86 | int change_comment = 0; |
| 87 | |
| 88 | int quiet = 0; |
| 89 | |
Darren Tucker | 35c4553 | 2008-06-13 04:43:15 +1000 | [diff] [blame] | 90 | int log_level = SYSLOG_LEVEL_INFO; |
| 91 | |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 92 | /* Flag indicating that we want to hash a known_hosts file */ |
| 93 | int hash_hosts = 0; |
| 94 | /* Flag indicating that we want lookup a host in known_hosts file */ |
| 95 | int find_host = 0; |
| 96 | /* Flag indicating that we want to delete a host from a known_hosts file */ |
| 97 | int delete_host = 0; |
| 98 | |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 99 | /* Flag indicating that we want to show the contents of a certificate */ |
| 100 | int show_cert = 0; |
| 101 | |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 102 | /* Flag indicating that we just want to see the key fingerprint */ |
| 103 | int print_fingerprint = 0; |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 104 | int print_bubblebabble = 0; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 105 | |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 106 | /* Hash algorithm to use for fingerprints. */ |
| 107 | int fingerprint_hash = SSH_FP_HASH_DEFAULT; |
| 108 | |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 109 | /* The identity file name, given on the command line or entered by the user. */ |
| 110 | char identity_file[1024]; |
| 111 | int have_identity = 0; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 112 | |
| 113 | /* This is set to the passphrase if given on the command line. */ |
| 114 | char *identity_passphrase = NULL; |
| 115 | |
| 116 | /* This is set to the new passphrase if given on the command line. */ |
| 117 | char *identity_new_passphrase = NULL; |
| 118 | |
| 119 | /* This is set to the new comment if given on the command line. */ |
| 120 | char *identity_comment = NULL; |
| 121 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 122 | /* Path to CA key when certifying keys. */ |
| 123 | char *ca_key_path = NULL; |
| 124 | |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 125 | /* Prefer to use agent keys for CA signing */ |
| 126 | int prefer_agent = 0; |
| 127 | |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 128 | /* Certificate serial number */ |
Damien Miller | 55aca02 | 2012-12-03 11:25:30 +1100 | [diff] [blame] | 129 | unsigned long long cert_serial = 0; |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 130 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 131 | /* Key type when certifying */ |
| 132 | u_int cert_key_type = SSH2_CERT_TYPE_USER; |
| 133 | |
| 134 | /* "key ID" of signed key */ |
| 135 | char *cert_key_id = NULL; |
| 136 | |
| 137 | /* Comma-separated list of principal names for certifying keys */ |
| 138 | char *cert_principals = NULL; |
| 139 | |
| 140 | /* Validity period for certificates */ |
| 141 | u_int64_t cert_valid_from = 0; |
| 142 | u_int64_t cert_valid_to = ~0ULL; |
| 143 | |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 144 | /* Certificate options */ |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 145 | #define CERTOPT_X_FWD (1) |
| 146 | #define CERTOPT_AGENT_FWD (1<<1) |
| 147 | #define CERTOPT_PORT_FWD (1<<2) |
| 148 | #define CERTOPT_PTY (1<<3) |
| 149 | #define CERTOPT_USER_RC (1<<4) |
| 150 | #define CERTOPT_DEFAULT (CERTOPT_X_FWD|CERTOPT_AGENT_FWD| \ |
| 151 | CERTOPT_PORT_FWD|CERTOPT_PTY|CERTOPT_USER_RC) |
| 152 | u_int32_t certflags_flags = CERTOPT_DEFAULT; |
| 153 | char *certflags_command = NULL; |
| 154 | char *certflags_src_addr = NULL; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 155 | |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 156 | /* Arbitrary extensions specified by user */ |
| 157 | struct cert_userext { |
| 158 | char *key; |
| 159 | char *val; |
| 160 | int crit; |
| 161 | }; |
| 162 | struct cert_userext *cert_userext; |
| 163 | size_t ncert_userext; |
| 164 | |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 165 | /* Conversion to/from various formats */ |
| 166 | int convert_to = 0; |
| 167 | int convert_from = 0; |
| 168 | enum { |
| 169 | FMT_RFC4716, |
| 170 | FMT_PKCS8, |
| 171 | FMT_PEM |
| 172 | } convert_format = FMT_RFC4716; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 173 | int print_public = 0; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 174 | int print_generic = 0; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 175 | |
Damien Miller | a41c8b1 | 2002-01-22 23:05:08 +1100 | [diff] [blame] | 176 | char *key_type_name = NULL; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 177 | |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 178 | /* Load key from this PKCS#11 provider */ |
| 179 | char *pkcs11provider = NULL; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 180 | |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 181 | /* Use new OpenSSH private key format when writing SSH2 keys instead of PEM */ |
djm@openbsd.org | ed7bd5d | 2018-08-08 01:16:01 +0000 | [diff] [blame] | 182 | int use_new_format = 1; |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 183 | |
| 184 | /* Cipher for new-format private keys */ |
| 185 | char *new_format_cipher = NULL; |
| 186 | |
| 187 | /* |
| 188 | * Number of KDF rounds to derive new format keys / |
| 189 | * number of primality trials when screening moduli. |
| 190 | */ |
| 191 | int rounds = 0; |
| 192 | |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 193 | /* argv0 */ |
| 194 | extern char *__progname; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 195 | |
Damien Miller | e5c0d52 | 2014-07-03 21:24:19 +1000 | [diff] [blame] | 196 | char hostname[NI_MAXHOST]; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 197 | |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 198 | #ifdef WITH_OPENSSL |
Darren Tucker | 770fc01 | 2004-05-13 16:24:32 +1000 | [diff] [blame] | 199 | /* moduli.c */ |
Damien Miller | b089fb5 | 2005-05-26 12:16:18 +1000 | [diff] [blame] | 200 | int gen_candidates(FILE *, u_int32_t, u_int32_t, BIGNUM *); |
Damien Miller | dfceafe | 2012-07-06 13:44:19 +1000 | [diff] [blame] | 201 | int prime_test(FILE *, FILE *, u_int32_t, u_int32_t, char *, unsigned long, |
| 202 | unsigned long); |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 203 | #endif |
Darren Tucker | 770fc01 | 2004-05-13 16:24:32 +1000 | [diff] [blame] | 204 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 205 | static void |
djm@openbsd.org | 7efb455 | 2015-01-18 13:22:28 +0000 | [diff] [blame] | 206 | type_bits_valid(int type, const char *name, u_int32_t *bitsp) |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 207 | { |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 208 | #ifdef WITH_OPENSSL |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 209 | u_int maxbits, nid; |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 210 | #endif |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 211 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 212 | if (type == KEY_UNSPEC) |
| 213 | fatal("unknown key type %s", key_type_name); |
Damien Miller | 884b63a | 2011-05-05 14:14:52 +1000 | [diff] [blame] | 214 | if (*bitsp == 0) { |
Damien Miller | 773dda2 | 2015-01-30 23:10:17 +1100 | [diff] [blame] | 215 | #ifdef WITH_OPENSSL |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 216 | if (type == KEY_DSA) |
Damien Miller | 884b63a | 2011-05-05 14:14:52 +1000 | [diff] [blame] | 217 | *bitsp = DEFAULT_BITS_DSA; |
djm@openbsd.org | 7efb455 | 2015-01-18 13:22:28 +0000 | [diff] [blame] | 218 | else if (type == KEY_ECDSA) { |
| 219 | if (name != NULL && |
| 220 | (nid = sshkey_ecdsa_nid_from_name(name)) > 0) |
| 221 | *bitsp = sshkey_curve_nid_to_bits(nid); |
| 222 | if (*bitsp == 0) |
| 223 | *bitsp = DEFAULT_BITS_ECDSA; |
Damien Miller | 773dda2 | 2015-01-30 23:10:17 +1100 | [diff] [blame] | 224 | } else |
| 225 | #endif |
Damien Miller | 884b63a | 2011-05-05 14:14:52 +1000 | [diff] [blame] | 226 | *bitsp = DEFAULT_BITS; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 227 | } |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 228 | #ifdef WITH_OPENSSL |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 229 | maxbits = (type == KEY_DSA) ? |
| 230 | OPENSSL_DSA_MAX_MODULUS_BITS : OPENSSL_RSA_MAX_MODULUS_BITS; |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 231 | if (*bitsp > maxbits) |
| 232 | fatal("key bits exceeds maximum %d", maxbits); |
djm@openbsd.org | bd636f4 | 2017-05-07 23:15:59 +0000 | [diff] [blame] | 233 | switch (type) { |
| 234 | case KEY_DSA: |
| 235 | if (*bitsp != 1024) |
| 236 | fatal("Invalid DSA key length: must be 1024 bits"); |
| 237 | break; |
| 238 | case KEY_RSA: |
| 239 | if (*bitsp < SSH_RSA_MINIMUM_MODULUS_SIZE) |
| 240 | fatal("Invalid RSA key length: minimum is %d bits", |
| 241 | SSH_RSA_MINIMUM_MODULUS_SIZE); |
| 242 | break; |
| 243 | case KEY_ECDSA: |
| 244 | if (sshkey_ecdsa_bits_to_nid(*bitsp) == -1) |
| 245 | fatal("Invalid ECDSA key length: valid lengths are " |
| 246 | "256, 384 or 521 bits"); |
| 247 | } |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 248 | #endif |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | static void |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 252 | ask_filename(struct passwd *pw, const char *prompt) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 253 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 254 | char buf[1024]; |
Damien Miller | e39cacc | 2000-11-29 12:18:44 +1100 | [diff] [blame] | 255 | char *name = NULL; |
| 256 | |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 257 | if (key_type_name == NULL) |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 258 | name = _PATH_SSH_CLIENT_ID_RSA; |
Damien Miller | 9096740 | 2006-03-26 14:07:26 +1100 | [diff] [blame] | 259 | else { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 260 | switch (sshkey_type_from_name(key_type_name)) { |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 261 | case KEY_DSA_CERT: |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 262 | case KEY_DSA: |
| 263 | name = _PATH_SSH_CLIENT_ID_DSA; |
| 264 | break; |
Damien Miller | dd190dd | 2010-11-11 14:17:02 +1100 | [diff] [blame] | 265 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 266 | case KEY_ECDSA_CERT: |
| 267 | case KEY_ECDSA: |
| 268 | name = _PATH_SSH_CLIENT_ID_ECDSA; |
| 269 | break; |
Damien Miller | dd190dd | 2010-11-11 14:17:02 +1100 | [diff] [blame] | 270 | #endif |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 271 | case KEY_RSA_CERT: |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 272 | case KEY_RSA: |
| 273 | name = _PATH_SSH_CLIENT_ID_RSA; |
| 274 | break; |
Damien Miller | 5be9d9e | 2013-12-07 11:24:01 +1100 | [diff] [blame] | 275 | case KEY_ED25519: |
| 276 | case KEY_ED25519_CERT: |
| 277 | name = _PATH_SSH_CLIENT_ID_ED25519; |
| 278 | break; |
markus@openbsd.org | 1b11ea7 | 2018-02-23 15:58:37 +0000 | [diff] [blame] | 279 | case KEY_XMSS: |
| 280 | case KEY_XMSS_CERT: |
| 281 | name = _PATH_SSH_CLIENT_ID_XMSS; |
| 282 | break; |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 283 | default: |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 284 | fatal("bad key type"); |
Damien Miller | 993dd55 | 2002-02-19 15:22:47 +1100 | [diff] [blame] | 285 | } |
Damien Miller | 9096740 | 2006-03-26 14:07:26 +1100 | [diff] [blame] | 286 | } |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 287 | snprintf(identity_file, sizeof(identity_file), |
| 288 | "%s/%s", pw->pw_dir, name); |
| 289 | printf("%s (%s): ", prompt, identity_file); |
| 290 | fflush(stdout); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 291 | if (fgets(buf, sizeof(buf), stdin) == NULL) |
| 292 | exit(1); |
Damien Miller | 14b017d | 2007-09-17 16:09:15 +1000 | [diff] [blame] | 293 | buf[strcspn(buf, "\n")] = '\0'; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 294 | if (strcmp(buf, "") != 0) |
| 295 | strlcpy(identity_file, buf, sizeof(identity_file)); |
| 296 | have_identity = 1; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 297 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 298 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 299 | static struct sshkey * |
Ben Lindstrom | d78ae76 | 2001-06-05 20:35:09 +0000 | [diff] [blame] | 300 | load_identity(char *filename) |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 301 | { |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 302 | char *pass; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 303 | struct sshkey *prv; |
| 304 | int r; |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 305 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 306 | if ((r = sshkey_load_private(filename, "", &prv, NULL)) == 0) |
| 307 | return prv; |
| 308 | if (r != SSH_ERR_KEY_WRONG_PASSPHRASE) |
| 309 | fatal("Load key \"%s\": %s", filename, ssh_err(r)); |
| 310 | if (identity_passphrase) |
| 311 | pass = xstrdup(identity_passphrase); |
| 312 | else |
| 313 | pass = read_passphrase("Enter passphrase: ", RP_ALLOW_STDIN); |
| 314 | r = sshkey_load_private(filename, pass, &prv, NULL); |
| 315 | explicit_bzero(pass, strlen(pass)); |
| 316 | free(pass); |
| 317 | if (r != 0) |
| 318 | fatal("Load key \"%s\": %s", filename, ssh_err(r)); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 319 | return prv; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 320 | } |
| 321 | |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 322 | #define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" |
Ben Lindstrom | cb72e4f | 2002-06-21 00:41:51 +0000 | [diff] [blame] | 323 | #define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----" |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 324 | #define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----" |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 325 | #define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 326 | |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 327 | #ifdef WITH_OPENSSL |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 328 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 329 | do_convert_to_ssh2(struct passwd *pw, struct sshkey *k) |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 330 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 331 | size_t len; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 332 | u_char *blob; |
Darren Tucker | d04758d | 2010-01-12 19:41:57 +1100 | [diff] [blame] | 333 | char comment[61]; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 334 | int r; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 335 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 336 | if ((r = sshkey_to_blob(k, &blob, &len)) != 0) |
| 337 | fatal("key_to_blob failed: %s", ssh_err(r)); |
Darren Tucker | d04758d | 2010-01-12 19:41:57 +1100 | [diff] [blame] | 338 | /* Comment + surrounds must fit into 72 chars (RFC 4716 sec 3.3) */ |
| 339 | snprintf(comment, sizeof(comment), |
| 340 | "%u-bit %s, converted by %s@%s from OpenSSH", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 341 | sshkey_size(k), sshkey_type(k), |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 342 | pw->pw_name, hostname); |
Darren Tucker | d04758d | 2010-01-12 19:41:57 +1100 | [diff] [blame] | 343 | |
| 344 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
| 345 | fprintf(stdout, "Comment: \"%s\"\n", comment); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 346 | dump_base64(stdout, blob, len); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 347 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 348 | sshkey_free(k); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 349 | free(blob); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 350 | exit(0); |
| 351 | } |
| 352 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 353 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 354 | do_convert_to_pkcs8(struct sshkey *k) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 355 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 356 | switch (sshkey_type_plain(k->type)) { |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 357 | case KEY_RSA: |
| 358 | if (!PEM_write_RSA_PUBKEY(stdout, k->rsa)) |
| 359 | fatal("PEM_write_RSA_PUBKEY failed"); |
| 360 | break; |
| 361 | case KEY_DSA: |
| 362 | if (!PEM_write_DSA_PUBKEY(stdout, k->dsa)) |
| 363 | fatal("PEM_write_DSA_PUBKEY failed"); |
| 364 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 365 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 366 | case KEY_ECDSA: |
| 367 | if (!PEM_write_EC_PUBKEY(stdout, k->ecdsa)) |
| 368 | fatal("PEM_write_EC_PUBKEY failed"); |
| 369 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 370 | #endif |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 371 | default: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 372 | fatal("%s: unsupported key type %s", __func__, sshkey_type(k)); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 373 | } |
| 374 | exit(0); |
| 375 | } |
| 376 | |
| 377 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 378 | do_convert_to_pem(struct sshkey *k) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 379 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 380 | switch (sshkey_type_plain(k->type)) { |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 381 | case KEY_RSA: |
| 382 | if (!PEM_write_RSAPublicKey(stdout, k->rsa)) |
| 383 | fatal("PEM_write_RSAPublicKey failed"); |
| 384 | break; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 385 | default: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 386 | fatal("%s: unsupported key type %s", __func__, sshkey_type(k)); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 387 | } |
| 388 | exit(0); |
| 389 | } |
| 390 | |
| 391 | static void |
| 392 | do_convert_to(struct passwd *pw) |
| 393 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 394 | struct sshkey *k; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 395 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 396 | int r; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 397 | |
| 398 | if (!have_identity) |
| 399 | ask_filename(pw, "Enter file in which the key is"); |
| 400 | if (stat(identity_file, &st) < 0) |
| 401 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 402 | if ((r = sshkey_load_public(identity_file, &k, NULL)) != 0) |
| 403 | k = load_identity(identity_file); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 404 | switch (convert_format) { |
| 405 | case FMT_RFC4716: |
| 406 | do_convert_to_ssh2(pw, k); |
| 407 | break; |
| 408 | case FMT_PKCS8: |
| 409 | do_convert_to_pkcs8(k); |
| 410 | break; |
| 411 | case FMT_PEM: |
| 412 | do_convert_to_pem(k); |
| 413 | break; |
| 414 | default: |
| 415 | fatal("%s: unknown key format %d", __func__, convert_format); |
| 416 | } |
| 417 | exit(0); |
| 418 | } |
| 419 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 420 | /* |
| 421 | * This is almost exactly the bignum1 encoding, but with 32 bit for length |
| 422 | * instead of 16. |
| 423 | */ |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 424 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 425 | buffer_get_bignum_bits(struct sshbuf *b, BIGNUM *value) |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 426 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 427 | u_int bytes, bignum_bits; |
| 428 | int r; |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 429 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 430 | if ((r = sshbuf_get_u32(b, &bignum_bits)) != 0) |
| 431 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
| 432 | bytes = (bignum_bits + 7) / 8; |
| 433 | if (sshbuf_len(b) < bytes) |
| 434 | fatal("%s: input buffer too small: need %d have %zu", |
| 435 | __func__, bytes, sshbuf_len(b)); |
| 436 | if (BN_bin2bn(sshbuf_ptr(b), bytes, value) == NULL) |
| 437 | fatal("%s: BN_bin2bn failed", __func__); |
| 438 | if ((r = sshbuf_consume(b, bytes)) != 0) |
| 439 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 440 | } |
| 441 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 442 | static struct sshkey * |
Ben Lindstrom | 90fd814 | 2002-02-26 18:09:42 +0000 | [diff] [blame] | 443 | do_convert_private_ssh2_from_blob(u_char *blob, u_int blen) |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 444 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 445 | struct sshbuf *b; |
| 446 | struct sshkey *key = NULL; |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 447 | char *type, *cipher; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 448 | u_char e1, e2, e3, *sig = NULL, data[] = "abcde12345"; |
| 449 | int r, rlen, ktype; |
| 450 | u_int magic, i1, i2, i3, i4; |
| 451 | size_t slen; |
Ben Lindstrom | e586c4c | 2001-06-25 05:04:58 +0000 | [diff] [blame] | 452 | u_long e; |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 453 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 454 | if ((b = sshbuf_from(blob, blen)) == NULL) |
| 455 | fatal("%s: sshbuf_from failed", __func__); |
| 456 | if ((r = sshbuf_get_u32(b, &magic)) != 0) |
| 457 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 458 | |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 459 | if (magic != SSH_COM_PRIVATE_KEY_MAGIC) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 460 | error("bad magic 0x%x != 0x%x", magic, |
| 461 | SSH_COM_PRIVATE_KEY_MAGIC); |
| 462 | sshbuf_free(b); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 463 | return NULL; |
| 464 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 465 | if ((r = sshbuf_get_u32(b, &i1)) != 0 || |
| 466 | (r = sshbuf_get_cstring(b, &type, NULL)) != 0 || |
| 467 | (r = sshbuf_get_cstring(b, &cipher, NULL)) != 0 || |
| 468 | (r = sshbuf_get_u32(b, &i2)) != 0 || |
| 469 | (r = sshbuf_get_u32(b, &i3)) != 0 || |
| 470 | (r = sshbuf_get_u32(b, &i4)) != 0) |
| 471 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 8016390 | 2007-01-05 16:30:16 +1100 | [diff] [blame] | 472 | debug("ignore (%d %d %d %d)", i1, i2, i3, i4); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 473 | if (strcmp(cipher, "none") != 0) { |
| 474 | error("unsupported cipher %s", cipher); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 475 | free(cipher); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 476 | sshbuf_free(b); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 477 | free(type); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 478 | return NULL; |
| 479 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 480 | free(cipher); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 481 | |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 482 | if (strstr(type, "dsa")) { |
| 483 | ktype = KEY_DSA; |
| 484 | } else if (strstr(type, "rsa")) { |
| 485 | ktype = KEY_RSA; |
| 486 | } else { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 487 | sshbuf_free(b); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 488 | free(type); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 489 | return NULL; |
| 490 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 491 | if ((key = sshkey_new_private(ktype)) == NULL) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 492 | fatal("sshkey_new_private failed"); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 493 | free(type); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 494 | |
| 495 | switch (key->type) { |
| 496 | case KEY_DSA: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 497 | buffer_get_bignum_bits(b, key->dsa->p); |
| 498 | buffer_get_bignum_bits(b, key->dsa->g); |
| 499 | buffer_get_bignum_bits(b, key->dsa->q); |
| 500 | buffer_get_bignum_bits(b, key->dsa->pub_key); |
| 501 | buffer_get_bignum_bits(b, key->dsa->priv_key); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 502 | break; |
| 503 | case KEY_RSA: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 504 | if ((r = sshbuf_get_u8(b, &e1)) != 0 || |
| 505 | (e1 < 30 && (r = sshbuf_get_u8(b, &e2)) != 0) || |
| 506 | (e1 < 30 && (r = sshbuf_get_u8(b, &e3)) != 0)) |
| 507 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
| 508 | e = e1; |
Ben Lindstrom | 34f9188 | 2001-06-25 04:47:54 +0000 | [diff] [blame] | 509 | debug("e %lx", e); |
| 510 | if (e < 30) { |
| 511 | e <<= 8; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 512 | e += e2; |
Ben Lindstrom | 34f9188 | 2001-06-25 04:47:54 +0000 | [diff] [blame] | 513 | debug("e %lx", e); |
| 514 | e <<= 8; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 515 | e += e3; |
Ben Lindstrom | 34f9188 | 2001-06-25 04:47:54 +0000 | [diff] [blame] | 516 | debug("e %lx", e); |
| 517 | } |
| 518 | if (!BN_set_word(key->rsa->e, e)) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 519 | sshbuf_free(b); |
| 520 | sshkey_free(key); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 521 | return NULL; |
| 522 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 523 | buffer_get_bignum_bits(b, key->rsa->d); |
| 524 | buffer_get_bignum_bits(b, key->rsa->n); |
| 525 | buffer_get_bignum_bits(b, key->rsa->iqmp); |
| 526 | buffer_get_bignum_bits(b, key->rsa->q); |
| 527 | buffer_get_bignum_bits(b, key->rsa->p); |
djm@openbsd.org | 83fa3a0 | 2017-07-01 13:50:45 +0000 | [diff] [blame] | 528 | if ((r = ssh_rsa_generate_additional_parameters(key)) != 0) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 529 | fatal("generate RSA parameters failed: %s", ssh_err(r)); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 530 | break; |
| 531 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 532 | rlen = sshbuf_len(b); |
Ben Lindstrom | 1c37c6a | 2001-12-06 18:00:18 +0000 | [diff] [blame] | 533 | if (rlen != 0) |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 534 | error("do_convert_private_ssh2_from_blob: " |
| 535 | "remaining bytes in key blob %d", rlen); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 536 | sshbuf_free(b); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 537 | |
Ben Lindstrom | e586c4c | 2001-06-25 05:04:58 +0000 | [diff] [blame] | 538 | /* try the key */ |
markus@openbsd.org | 76c9fbb | 2015-12-04 16:41:28 +0000 | [diff] [blame] | 539 | 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] | 540 | sshkey_verify(key, sig, slen, data, sizeof(data), NULL, 0) != 0) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 541 | sshkey_free(key); |
| 542 | free(sig); |
| 543 | return NULL; |
| 544 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 545 | free(sig); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 546 | return key; |
| 547 | } |
| 548 | |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 549 | static int |
| 550 | get_line(FILE *fp, char *line, size_t len) |
| 551 | { |
| 552 | int c; |
| 553 | size_t pos = 0; |
| 554 | |
| 555 | line[0] = '\0'; |
| 556 | while ((c = fgetc(fp)) != EOF) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 557 | if (pos >= len - 1) |
| 558 | fatal("input line too long."); |
Damien Miller | 9096740 | 2006-03-26 14:07:26 +1100 | [diff] [blame] | 559 | switch (c) { |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 560 | case '\r': |
| 561 | c = fgetc(fp); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 562 | if (c != EOF && c != '\n' && ungetc(c, fp) == EOF) |
| 563 | fatal("unget: %s", strerror(errno)); |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 564 | return pos; |
| 565 | case '\n': |
| 566 | return pos; |
| 567 | } |
| 568 | line[pos++] = c; |
| 569 | line[pos] = '\0'; |
| 570 | } |
Damien Miller | 6c7439f | 2007-01-05 16:29:55 +1100 | [diff] [blame] | 571 | /* We reached EOF */ |
| 572 | return -1; |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 573 | } |
| 574 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 575 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 576 | do_convert_from_ssh2(struct passwd *pw, struct sshkey **k, int *private) |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 577 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 578 | int r, blen, escaped = 0; |
Ben Lindstrom | 155b981 | 2002-04-02 20:26:26 +0000 | [diff] [blame] | 579 | u_int len; |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 580 | char line[1024]; |
Ben Lindstrom | 9e0ddd4 | 2001-09-18 05:41:19 +0000 | [diff] [blame] | 581 | u_char blob[8096]; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 582 | char encoded[8096]; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 583 | FILE *fp; |
| 584 | |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 585 | if ((fp = fopen(identity_file, "r")) == NULL) |
| 586 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 587 | encoded[0] = '\0'; |
Damien Miller | 8056a9d | 2006-03-15 12:05:40 +1100 | [diff] [blame] | 588 | while ((blen = get_line(fp, line, sizeof(line))) != -1) { |
Damien Miller | 746d1a6 | 2013-07-18 16:13:02 +1000 | [diff] [blame] | 589 | if (blen > 0 && line[blen - 1] == '\\') |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 590 | escaped++; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 591 | if (strncmp(line, "----", 4) == 0 || |
| 592 | strstr(line, ": ") != NULL) { |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 593 | if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 594 | *private = 1; |
Ben Lindstrom | e586c4c | 2001-06-25 05:04:58 +0000 | [diff] [blame] | 595 | if (strstr(line, " END ") != NULL) { |
| 596 | break; |
| 597 | } |
Ben Lindstrom | 3035860 | 2001-04-24 16:59:28 +0000 | [diff] [blame] | 598 | /* fprintf(stderr, "ignore: %s", line); */ |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 599 | continue; |
| 600 | } |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 601 | if (escaped) { |
| 602 | escaped--; |
Ben Lindstrom | 3035860 | 2001-04-24 16:59:28 +0000 | [diff] [blame] | 603 | /* fprintf(stderr, "escaped: %s", line); */ |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 604 | continue; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 605 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 606 | strlcat(encoded, line, sizeof(encoded)); |
| 607 | } |
Ben Lindstrom | 155b981 | 2002-04-02 20:26:26 +0000 | [diff] [blame] | 608 | len = strlen(encoded); |
| 609 | if (((len % 4) == 3) && |
| 610 | (encoded[len-1] == '=') && |
| 611 | (encoded[len-2] == '=') && |
| 612 | (encoded[len-3] == '=')) |
| 613 | encoded[len-3] = '\0'; |
Damien Miller | 4a8ed54 | 2002-01-22 23:33:31 +1100 | [diff] [blame] | 614 | blen = uudecode(encoded, blob, sizeof(blob)); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 615 | if (blen < 0) |
| 616 | fatal("uudecode failed."); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 617 | if (*private) |
| 618 | *k = do_convert_private_ssh2_from_blob(blob, blen); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 619 | else if ((r = sshkey_from_blob(blob, blen, k)) != 0) |
| 620 | fatal("decode blob failed: %s", ssh_err(r)); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 621 | fclose(fp); |
| 622 | } |
| 623 | |
| 624 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 625 | do_convert_from_pkcs8(struct sshkey **k, int *private) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 626 | { |
| 627 | EVP_PKEY *pubkey; |
| 628 | FILE *fp; |
| 629 | |
| 630 | if ((fp = fopen(identity_file, "r")) == NULL) |
| 631 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
| 632 | if ((pubkey = PEM_read_PUBKEY(fp, NULL, NULL, NULL)) == NULL) { |
| 633 | fatal("%s: %s is not a recognised public key format", __func__, |
| 634 | identity_file); |
| 635 | } |
| 636 | fclose(fp); |
| 637 | switch (EVP_PKEY_type(pubkey->type)) { |
| 638 | case EVP_PKEY_RSA: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 639 | if ((*k = sshkey_new(KEY_UNSPEC)) == NULL) |
| 640 | fatal("sshkey_new failed"); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 641 | (*k)->type = KEY_RSA; |
| 642 | (*k)->rsa = EVP_PKEY_get1_RSA(pubkey); |
| 643 | break; |
| 644 | case EVP_PKEY_DSA: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 645 | if ((*k = sshkey_new(KEY_UNSPEC)) == NULL) |
| 646 | fatal("sshkey_new failed"); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 647 | (*k)->type = KEY_DSA; |
| 648 | (*k)->dsa = EVP_PKEY_get1_DSA(pubkey); |
| 649 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 650 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 651 | case EVP_PKEY_EC: |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 652 | if ((*k = sshkey_new(KEY_UNSPEC)) == NULL) |
| 653 | fatal("sshkey_new failed"); |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 654 | (*k)->type = KEY_ECDSA; |
| 655 | (*k)->ecdsa = EVP_PKEY_get1_EC_KEY(pubkey); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 656 | (*k)->ecdsa_nid = sshkey_ecdsa_key_to_nid((*k)->ecdsa); |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 657 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 658 | #endif |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 659 | default: |
| 660 | fatal("%s: unsupported pubkey type %d", __func__, |
| 661 | EVP_PKEY_type(pubkey->type)); |
| 662 | } |
| 663 | EVP_PKEY_free(pubkey); |
| 664 | return; |
| 665 | } |
| 666 | |
| 667 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 668 | do_convert_from_pem(struct sshkey **k, int *private) |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 669 | { |
| 670 | FILE *fp; |
| 671 | RSA *rsa; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 672 | |
| 673 | if ((fp = fopen(identity_file, "r")) == NULL) |
| 674 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
| 675 | if ((rsa = PEM_read_RSAPublicKey(fp, NULL, NULL, NULL)) != NULL) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 676 | if ((*k = sshkey_new(KEY_UNSPEC)) == NULL) |
| 677 | fatal("sshkey_new failed"); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 678 | (*k)->type = KEY_RSA; |
| 679 | (*k)->rsa = rsa; |
| 680 | fclose(fp); |
| 681 | return; |
| 682 | } |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 683 | fatal("%s: unrecognised raw private key format", __func__); |
| 684 | } |
| 685 | |
| 686 | static void |
| 687 | do_convert_from(struct passwd *pw) |
| 688 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 689 | struct sshkey *k = NULL; |
| 690 | int r, private = 0, ok = 0; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 691 | struct stat st; |
| 692 | |
| 693 | if (!have_identity) |
| 694 | ask_filename(pw, "Enter file in which the key is"); |
| 695 | if (stat(identity_file, &st) < 0) |
| 696 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
| 697 | |
| 698 | switch (convert_format) { |
| 699 | case FMT_RFC4716: |
| 700 | do_convert_from_ssh2(pw, &k, &private); |
| 701 | break; |
| 702 | case FMT_PKCS8: |
| 703 | do_convert_from_pkcs8(&k, &private); |
| 704 | break; |
| 705 | case FMT_PEM: |
| 706 | do_convert_from_pem(&k, &private); |
| 707 | break; |
| 708 | default: |
| 709 | fatal("%s: unknown key format %d", __func__, convert_format); |
| 710 | } |
| 711 | |
djm@openbsd.org | 7a2c368 | 2015-01-30 00:59:19 +0000 | [diff] [blame] | 712 | if (!private) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 713 | if ((r = sshkey_write(k, stdout)) == 0) |
| 714 | ok = 1; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 715 | if (ok) |
| 716 | fprintf(stdout, "\n"); |
djm@openbsd.org | 7a2c368 | 2015-01-30 00:59:19 +0000 | [diff] [blame] | 717 | } else { |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 718 | switch (k->type) { |
| 719 | case KEY_DSA: |
| 720 | ok = PEM_write_DSAPrivateKey(stdout, k->dsa, NULL, |
| 721 | NULL, 0, NULL, NULL); |
| 722 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 723 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 724 | case KEY_ECDSA: |
| 725 | ok = PEM_write_ECPrivateKey(stdout, k->ecdsa, NULL, |
| 726 | NULL, 0, NULL, NULL); |
| 727 | break; |
Damien Miller | 6af914a | 2010-09-10 11:39:26 +1000 | [diff] [blame] | 728 | #endif |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 729 | case KEY_RSA: |
| 730 | ok = PEM_write_RSAPrivateKey(stdout, k->rsa, NULL, |
| 731 | NULL, 0, NULL, NULL); |
| 732 | break; |
| 733 | default: |
| 734 | fatal("%s: unsupported key type %s", __func__, |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 735 | sshkey_type(k)); |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 736 | } |
| 737 | } |
| 738 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 739 | if (!ok) |
| 740 | fatal("key write failed"); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 741 | sshkey_free(k); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 742 | exit(0); |
| 743 | } |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 744 | #endif |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 745 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 746 | static void |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 747 | do_print_public(struct passwd *pw) |
| 748 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 749 | struct sshkey *prv; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 750 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 751 | int r; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 752 | |
| 753 | if (!have_identity) |
| 754 | ask_filename(pw, "Enter file in which the key is"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 755 | if (stat(identity_file, &st) < 0) |
| 756 | fatal("%s: %s", identity_file, strerror(errno)); |
Ben Lindstrom | d78ae76 | 2001-06-05 20:35:09 +0000 | [diff] [blame] | 757 | prv = load_identity(identity_file); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 758 | if ((r = sshkey_write(prv, stdout)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 759 | error("sshkey_write failed: %s", ssh_err(r)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 760 | sshkey_free(prv); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 761 | fprintf(stdout, "\n"); |
| 762 | exit(0); |
| 763 | } |
| 764 | |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 765 | static void |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 766 | do_download(struct passwd *pw) |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 767 | { |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 768 | #ifdef ENABLE_PKCS11 |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 769 | struct sshkey **keys = NULL; |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 770 | int i, nkeys; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 771 | enum sshkey_fp_rep rep; |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 772 | int fptype; |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 773 | char *fp, *ra; |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 774 | |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 775 | fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
| 776 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
Damien Miller | 1422c08 | 2013-01-09 16:44:54 +1100 | [diff] [blame] | 777 | |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 778 | pkcs11_init(0); |
| 779 | nkeys = pkcs11_add_provider(pkcs11provider, NULL, &keys); |
| 780 | if (nkeys <= 0) |
| 781 | fatal("cannot read public key from pkcs11"); |
| 782 | for (i = 0; i < nkeys; i++) { |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 783 | if (print_fingerprint) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 784 | fp = sshkey_fingerprint(keys[i], fptype, rep); |
| 785 | ra = sshkey_fingerprint(keys[i], fingerprint_hash, |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 786 | SSH_FP_RANDOMART); |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 787 | if (fp == NULL || ra == NULL) |
| 788 | fatal("%s: sshkey_fingerprint fail", __func__); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 789 | printf("%u %s %s (PKCS11 key)\n", sshkey_size(keys[i]), |
| 790 | fp, sshkey_type(keys[i])); |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 791 | if (log_level >= SYSLOG_LEVEL_VERBOSE) |
| 792 | printf("%s\n", ra); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 793 | free(ra); |
| 794 | free(fp); |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 795 | } else { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 796 | (void) sshkey_write(keys[i], stdout); /* XXX check */ |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 797 | fprintf(stdout, "\n"); |
| 798 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 799 | sshkey_free(keys[i]); |
Ben Lindstrom | 0936a5b | 2002-03-26 03:17:42 +0000 | [diff] [blame] | 800 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 801 | free(keys); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 802 | pkcs11_terminate(); |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 803 | exit(0); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 804 | #else |
| 805 | fatal("no pkcs11 support"); |
| 806 | #endif /* ENABLE_PKCS11 */ |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 807 | } |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 808 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 809 | static struct sshkey * |
| 810 | try_read_key(char **cpp) |
| 811 | { |
| 812 | struct sshkey *ret; |
| 813 | int r; |
| 814 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 815 | if ((ret = sshkey_new(KEY_UNSPEC)) == NULL) |
| 816 | fatal("sshkey_new failed"); |
| 817 | if ((r = sshkey_read(ret, cpp)) == 0) |
| 818 | return ret; |
| 819 | /* Not a key */ |
| 820 | sshkey_free(ret); |
| 821 | return NULL; |
| 822 | } |
| 823 | |
| 824 | static void |
| 825 | fingerprint_one_key(const struct sshkey *public, const char *comment) |
| 826 | { |
| 827 | char *fp = NULL, *ra = NULL; |
| 828 | enum sshkey_fp_rep rep; |
| 829 | int fptype; |
| 830 | |
| 831 | fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
| 832 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
| 833 | fp = sshkey_fingerprint(public, fptype, rep); |
| 834 | ra = sshkey_fingerprint(public, fingerprint_hash, SSH_FP_RANDOMART); |
| 835 | if (fp == NULL || ra == NULL) |
| 836 | fatal("%s: sshkey_fingerprint failed", __func__); |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 837 | mprintf("%u %s %s (%s)\n", sshkey_size(public), fp, |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 838 | comment ? comment : "no comment", sshkey_type(public)); |
| 839 | if (log_level >= SYSLOG_LEVEL_VERBOSE) |
| 840 | printf("%s\n", ra); |
| 841 | free(ra); |
| 842 | free(fp); |
| 843 | } |
| 844 | |
| 845 | static void |
| 846 | fingerprint_private(const char *path) |
| 847 | { |
| 848 | struct stat st; |
| 849 | char *comment = NULL; |
| 850 | struct sshkey *public = NULL; |
| 851 | int r; |
| 852 | |
| 853 | if (stat(identity_file, &st) < 0) |
| 854 | fatal("%s: %s", path, strerror(errno)); |
djm@openbsd.org | bcb7bc7 | 2015-11-18 08:37:28 +0000 | [diff] [blame] | 855 | if ((r = sshkey_load_public(path, &public, &comment)) != 0) { |
| 856 | debug("load public \"%s\": %s", path, ssh_err(r)); |
| 857 | if ((r = sshkey_load_private(path, NULL, |
| 858 | &public, &comment)) != 0) { |
| 859 | debug("load private \"%s\": %s", path, ssh_err(r)); |
| 860 | fatal("%s is not a key file.", path); |
| 861 | } |
| 862 | } |
| 863 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 864 | fingerprint_one_key(public, comment); |
| 865 | sshkey_free(public); |
| 866 | free(comment); |
| 867 | } |
| 868 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 869 | static void |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 870 | do_fingerprint(struct passwd *pw) |
| 871 | { |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 872 | FILE *f; |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 873 | struct sshkey *public = NULL; |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 874 | char *comment = NULL, *cp, *ep, *line = NULL; |
| 875 | size_t linesize = 0; |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 876 | int i, invalid = 1; |
| 877 | const char *path; |
djm@openbsd.org | 1a31d02 | 2016-05-02 08:49:03 +0000 | [diff] [blame] | 878 | u_long lnum = 0; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 879 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 880 | if (!have_identity) |
| 881 | ask_filename(pw, "Enter file in which the key is"); |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 882 | path = identity_file; |
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 | if (strcmp(identity_file, "-") == 0) { |
| 885 | f = stdin; |
| 886 | path = "(stdin)"; |
| 887 | } else if ((f = fopen(path, "r")) == NULL) |
| 888 | fatal("%s: %s: %s", __progname, path, strerror(errno)); |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 889 | |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 890 | while (getline(&line, &linesize, f) != -1) { |
| 891 | lnum++; |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 892 | cp = line; |
| 893 | cp[strcspn(cp, "\n")] = '\0'; |
| 894 | /* Trim leading space and comments */ |
| 895 | cp = line + strspn(line, " \t"); |
| 896 | if (*cp == '#' || *cp == '\0') |
| 897 | continue; |
| 898 | |
| 899 | /* |
| 900 | * Input may be plain keys, private keys, authorized_keys |
| 901 | * or known_hosts. |
| 902 | */ |
| 903 | |
| 904 | /* |
| 905 | * Try private keys first. Assume a key is private if |
| 906 | * "SSH PRIVATE KEY" appears on the first line and we're |
| 907 | * not reading from stdin (XXX support private keys on stdin). |
| 908 | */ |
| 909 | if (lnum == 1 && strcmp(identity_file, "-") != 0 && |
djm@openbsd.org | bcb7bc7 | 2015-11-18 08:37:28 +0000 | [diff] [blame] | 910 | strstr(cp, "PRIVATE KEY") != NULL) { |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 911 | free(line); |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 912 | fclose(f); |
| 913 | fingerprint_private(path); |
| 914 | exit(0); |
| 915 | } |
| 916 | |
| 917 | /* |
| 918 | * If it's not a private key, then this must be prepared to |
| 919 | * accept a public key prefixed with a hostname or options. |
| 920 | * Try a bare key first, otherwise skip the leading stuff. |
| 921 | */ |
| 922 | if ((public = try_read_key(&cp)) == NULL) { |
| 923 | i = strtol(cp, &ep, 10); |
| 924 | if (i == 0 || ep == NULL || |
| 925 | (*ep != ' ' && *ep != '\t')) { |
| 926 | int quoted = 0; |
| 927 | |
| 928 | comment = cp; |
| 929 | for (; *cp && (quoted || (*cp != ' ' && |
| 930 | *cp != '\t')); cp++) { |
| 931 | if (*cp == '\\' && cp[1] == '"') |
| 932 | cp++; /* Skip both */ |
| 933 | else if (*cp == '"') |
| 934 | quoted = !quoted; |
| 935 | } |
| 936 | if (!*cp) |
| 937 | continue; |
| 938 | *cp++ = '\0'; |
| 939 | } |
| 940 | } |
| 941 | /* Retry after parsing leading hostname/key options */ |
| 942 | if (public == NULL && (public = try_read_key(&cp)) == NULL) { |
djm@openbsd.org | 1a31d02 | 2016-05-02 08:49:03 +0000 | [diff] [blame] | 943 | debug("%s:%lu: not a public key", path, lnum); |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 944 | continue; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 945 | } |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 946 | |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 947 | /* Find trailing comment, if any */ |
| 948 | for (; *cp == ' ' || *cp == '\t'; cp++) |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 949 | ; |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 950 | if (*cp != '\0' && *cp != '#') |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 951 | comment = cp; |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 952 | |
| 953 | fingerprint_one_key(public, comment); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 954 | sshkey_free(public); |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 955 | invalid = 0; /* One good key in the file is sufficient */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 956 | } |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 957 | fclose(f); |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 958 | free(line); |
Damien Miller | ba3420a | 2010-06-26 09:39:07 +1000 | [diff] [blame] | 959 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 960 | if (invalid) |
djm@openbsd.org | c56a255 | 2015-11-16 22:53:07 +0000 | [diff] [blame] | 961 | fatal("%s is not a public key file.", path); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 962 | exit(0); |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 963 | } |
| 964 | |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 965 | static void |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 966 | do_gen_all_hostkeys(struct passwd *pw) |
| 967 | { |
| 968 | struct { |
| 969 | char *key_type; |
| 970 | char *key_type_display; |
| 971 | char *path; |
| 972 | } key_types[] = { |
djm@openbsd.org | 5c27e3b | 2015-03-23 06:06:38 +0000 | [diff] [blame] | 973 | #ifdef WITH_OPENSSL |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 974 | { "rsa", "RSA" ,_PATH_HOST_RSA_KEY_FILE }, |
| 975 | { "dsa", "DSA", _PATH_HOST_DSA_KEY_FILE }, |
Damien Miller | b56e493 | 2012-02-06 07:41:27 +1100 | [diff] [blame] | 976 | #ifdef OPENSSL_HAS_ECC |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 977 | { "ecdsa", "ECDSA",_PATH_HOST_ECDSA_KEY_FILE }, |
djm@openbsd.org | 5c27e3b | 2015-03-23 06:06:38 +0000 | [diff] [blame] | 978 | #endif /* OPENSSL_HAS_ECC */ |
| 979 | #endif /* WITH_OPENSSL */ |
Damien Miller | 5be9d9e | 2013-12-07 11:24:01 +1100 | [diff] [blame] | 980 | { "ed25519", "ED25519",_PATH_HOST_ED25519_KEY_FILE }, |
markus@openbsd.org | 1b11ea7 | 2018-02-23 15:58:37 +0000 | [diff] [blame] | 981 | #ifdef WITH_XMSS |
| 982 | { "xmss", "XMSS",_PATH_HOST_XMSS_KEY_FILE }, |
| 983 | #endif /* WITH_XMSS */ |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 984 | { NULL, NULL, NULL } |
| 985 | }; |
| 986 | |
| 987 | int first = 0; |
| 988 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 989 | struct sshkey *private, *public; |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 990 | char comment[1024], *prv_tmp, *pub_tmp, *prv_file, *pub_file; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 991 | int i, type, fd, r; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 992 | FILE *f; |
| 993 | |
| 994 | for (i = 0; key_types[i].key_type; i++) { |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 995 | public = private = NULL; |
| 996 | prv_tmp = pub_tmp = prv_file = pub_file = NULL; |
| 997 | |
| 998 | xasprintf(&prv_file, "%s%s", |
| 999 | identity_file, key_types[i].path); |
| 1000 | |
| 1001 | /* Check whether private key exists and is not zero-length */ |
| 1002 | if (stat(prv_file, &st) == 0) { |
| 1003 | if (st.st_size != 0) |
| 1004 | goto next; |
| 1005 | } else if (errno != ENOENT) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1006 | error("Could not stat %s: %s", key_types[i].path, |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1007 | strerror(errno)); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1008 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1009 | } |
| 1010 | |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1011 | /* |
| 1012 | * Private key doesn't exist or is invalid; proceed with |
| 1013 | * key generation. |
| 1014 | */ |
| 1015 | xasprintf(&prv_tmp, "%s%s.XXXXXXXXXX", |
| 1016 | identity_file, key_types[i].path); |
| 1017 | xasprintf(&pub_tmp, "%s%s.pub.XXXXXXXXXX", |
| 1018 | identity_file, key_types[i].path); |
| 1019 | xasprintf(&pub_file, "%s%s.pub", |
| 1020 | identity_file, key_types[i].path); |
| 1021 | |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1022 | if (first == 0) { |
| 1023 | first = 1; |
| 1024 | printf("%s: generating new host keys: ", __progname); |
| 1025 | } |
| 1026 | printf("%s ", key_types[i].key_type_display); |
| 1027 | fflush(stdout); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1028 | type = sshkey_type_from_name(key_types[i].key_type); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1029 | if ((fd = mkstemp(prv_tmp)) == -1) { |
| 1030 | error("Could not save your public key in %s: %s", |
| 1031 | prv_tmp, strerror(errno)); |
| 1032 | goto failnext; |
| 1033 | } |
| 1034 | close(fd); /* just using mkstemp() to generate/reserve a name */ |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1035 | bits = 0; |
djm@openbsd.org | 7efb455 | 2015-01-18 13:22:28 +0000 | [diff] [blame] | 1036 | type_bits_valid(type, NULL, &bits); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1037 | if ((r = sshkey_generate(type, bits, &private)) != 0) { |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 1038 | error("sshkey_generate failed: %s", ssh_err(r)); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1039 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1040 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1041 | if ((r = sshkey_from_private(private, &public)) != 0) |
| 1042 | fatal("sshkey_from_private failed: %s", ssh_err(r)); |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1043 | snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, |
| 1044 | hostname); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1045 | if ((r = sshkey_save_private(private, prv_tmp, "", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1046 | comment, use_new_format, new_format_cipher, rounds)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1047 | error("Saving key \"%s\" failed: %s", |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1048 | prv_tmp, ssh_err(r)); |
| 1049 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1050 | } |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1051 | if ((fd = mkstemp(pub_tmp)) == -1) { |
| 1052 | error("Could not save your public key in %s: %s", |
| 1053 | pub_tmp, strerror(errno)); |
| 1054 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1055 | } |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1056 | (void)fchmod(fd, 0644); |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1057 | f = fdopen(fd, "w"); |
| 1058 | if (f == NULL) { |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1059 | error("fdopen %s failed: %s", pub_tmp, strerror(errno)); |
doug@openbsd.org | 7df8818 | 2014-08-21 01:08:52 +0000 | [diff] [blame] | 1060 | close(fd); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1061 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1062 | } |
djm@openbsd.org | bb8b442 | 2015-01-16 15:55:07 +0000 | [diff] [blame] | 1063 | if ((r = sshkey_write(public, f)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1064 | error("write key failed: %s", ssh_err(r)); |
doug@openbsd.org | 7df8818 | 2014-08-21 01:08:52 +0000 | [diff] [blame] | 1065 | fclose(f); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1066 | goto failnext; |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1067 | } |
| 1068 | fprintf(f, " %s\n", comment); |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1069 | if (ferror(f) != 0) { |
| 1070 | error("write key failed: %s", strerror(errno)); |
| 1071 | fclose(f); |
| 1072 | goto failnext; |
| 1073 | } |
| 1074 | if (fclose(f) != 0) { |
| 1075 | error("key close failed: %s", strerror(errno)); |
| 1076 | goto failnext; |
| 1077 | } |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1078 | |
djm@openbsd.org | 853edbe | 2017-07-07 03:53:12 +0000 | [diff] [blame] | 1079 | /* Rename temporary files to their permanent locations. */ |
| 1080 | if (rename(pub_tmp, pub_file) != 0) { |
| 1081 | error("Unable to move %s into position: %s", |
| 1082 | pub_file, strerror(errno)); |
| 1083 | goto failnext; |
| 1084 | } |
| 1085 | if (rename(prv_tmp, prv_file) != 0) { |
| 1086 | error("Unable to move %s into position: %s", |
| 1087 | key_types[i].path, strerror(errno)); |
| 1088 | failnext: |
| 1089 | first = 0; |
| 1090 | goto next; |
| 1091 | } |
| 1092 | next: |
| 1093 | sshkey_free(private); |
| 1094 | sshkey_free(public); |
| 1095 | free(prv_tmp); |
| 1096 | free(pub_tmp); |
| 1097 | free(prv_file); |
| 1098 | free(pub_file); |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 1099 | } |
| 1100 | if (first != 0) |
| 1101 | printf("\n"); |
| 1102 | } |
| 1103 | |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1104 | struct known_hosts_ctx { |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1105 | const char *host; /* Hostname searched for in find/delete case */ |
| 1106 | FILE *out; /* Output file, stdout for find_hosts case */ |
| 1107 | int has_unhashed; /* When hashing, original had unhashed hosts */ |
| 1108 | int found_key; /* For find/delete, host was found */ |
| 1109 | int invalid; /* File contained invalid items; don't delete */ |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1110 | }; |
| 1111 | |
| 1112 | static int |
| 1113 | known_hosts_hash(struct hostkey_foreach_line *l, void *_ctx) |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1114 | { |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1115 | struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx; |
| 1116 | char *hashed, *cp, *hosts, *ohosts; |
| 1117 | int has_wild = l->hosts && strcspn(l->hosts, "*?!") != strlen(l->hosts); |
dtucker@openbsd.org | 1850115 | 2017-03-06 02:03:20 +0000 | [diff] [blame] | 1118 | int was_hashed = l->hosts && l->hosts[0] == HASH_DELIM; |
Darren Tucker | 0f7e910 | 2008-06-08 12:54:29 +1000 | [diff] [blame] | 1119 | |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1120 | switch (l->status) { |
| 1121 | case HKF_STATUS_OK: |
| 1122 | case HKF_STATUS_MATCHED: |
| 1123 | /* |
| 1124 | * Don't hash hosts already already hashed, with wildcard |
| 1125 | * characters or a CA/revocation marker. |
| 1126 | */ |
djm@openbsd.org | 12d3767 | 2017-03-03 06:13:11 +0000 | [diff] [blame] | 1127 | if (was_hashed || has_wild || l->marker != MRK_NONE) { |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1128 | fprintf(ctx->out, "%s\n", l->line); |
| 1129 | if (has_wild && !find_host) { |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1130 | logit("%s:%lu: ignoring host name " |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1131 | "with wildcard: %.64s", l->path, |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1132 | l->linenum, l->hosts); |
| 1133 | } |
| 1134 | return 0; |
| 1135 | } |
| 1136 | /* |
| 1137 | * Split any comma-separated hostnames from the host list, |
| 1138 | * hash and store separately. |
| 1139 | */ |
| 1140 | ohosts = hosts = xstrdup(l->hosts); |
| 1141 | while ((cp = strsep(&hosts, ",")) != NULL && *cp != '\0') { |
djm@openbsd.org | db25972 | 2017-03-10 04:26:06 +0000 | [diff] [blame] | 1142 | lowercase(cp); |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1143 | if ((hashed = host_hash(cp, NULL, 0)) == NULL) |
| 1144 | fatal("hash_host failed"); |
| 1145 | fprintf(ctx->out, "%s %s\n", hashed, l->rawkey); |
| 1146 | ctx->has_unhashed = 1; |
| 1147 | } |
| 1148 | free(ohosts); |
| 1149 | return 0; |
| 1150 | case HKF_STATUS_INVALID: |
| 1151 | /* Retain invalid lines, but mark file as invalid. */ |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1152 | ctx->invalid = 1; |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1153 | logit("%s:%lu: invalid line", l->path, l->linenum); |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1154 | /* FALLTHROUGH */ |
| 1155 | default: |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1156 | fprintf(ctx->out, "%s\n", l->line); |
| 1157 | return 0; |
Darren Tucker | 0f7e910 | 2008-06-08 12:54:29 +1000 | [diff] [blame] | 1158 | } |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1159 | /* NOTREACHED */ |
| 1160 | return -1; |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1161 | } |
| 1162 | |
| 1163 | static int |
| 1164 | known_hosts_find_delete(struct hostkey_foreach_line *l, void *_ctx) |
| 1165 | { |
| 1166 | struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx; |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1167 | enum sshkey_fp_rep rep; |
| 1168 | int fptype; |
| 1169 | char *fp; |
| 1170 | |
| 1171 | fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
| 1172 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1173 | |
djm@openbsd.org | 6c5c949 | 2015-02-16 22:08:57 +0000 | [diff] [blame] | 1174 | if (l->status == HKF_STATUS_MATCHED) { |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1175 | if (delete_host) { |
| 1176 | if (l->marker != MRK_NONE) { |
| 1177 | /* Don't remove CA and revocation lines */ |
| 1178 | fprintf(ctx->out, "%s\n", l->line); |
| 1179 | } else { |
| 1180 | /* |
| 1181 | * Hostname matches and has no CA/revoke |
| 1182 | * marker, delete it by *not* writing the |
| 1183 | * line to ctx->out. |
| 1184 | */ |
| 1185 | ctx->found_key = 1; |
| 1186 | if (!quiet) |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1187 | printf("# Host %s found: line %lu\n", |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1188 | ctx->host, l->linenum); |
| 1189 | } |
| 1190 | return 0; |
| 1191 | } else if (find_host) { |
| 1192 | ctx->found_key = 1; |
| 1193 | if (!quiet) { |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1194 | printf("# Host %s found: line %lu %s\n", |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1195 | ctx->host, |
| 1196 | l->linenum, l->marker == MRK_CA ? "CA" : |
| 1197 | (l->marker == MRK_REVOKE ? "REVOKED" : "")); |
| 1198 | } |
| 1199 | if (hash_hosts) |
| 1200 | known_hosts_hash(l, ctx); |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1201 | else if (print_fingerprint) { |
| 1202 | fp = sshkey_fingerprint(l->key, fptype, rep); |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 1203 | mprintf("%s %s %s %s\n", ctx->host, |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1204 | sshkey_type(l->key), fp, l->comment); |
| 1205 | free(fp); |
| 1206 | } else |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1207 | fprintf(ctx->out, "%s\n", l->line); |
| 1208 | return 0; |
| 1209 | } |
| 1210 | } else if (delete_host) { |
| 1211 | /* Retain non-matching hosts when deleting */ |
| 1212 | if (l->status == HKF_STATUS_INVALID) { |
| 1213 | ctx->invalid = 1; |
dtucker@openbsd.org | d072370 | 2017-03-06 00:44:51 +0000 | [diff] [blame] | 1214 | logit("%s:%lu: invalid line", l->path, l->linenum); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1215 | } |
| 1216 | fprintf(ctx->out, "%s\n", l->line); |
| 1217 | } |
| 1218 | return 0; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1219 | } |
| 1220 | |
| 1221 | static void |
| 1222 | do_known_hosts(struct passwd *pw, const char *name) |
| 1223 | { |
deraadt@openbsd.org | d2099de | 2015-01-19 00:32:54 +0000 | [diff] [blame] | 1224 | char *cp, tmp[PATH_MAX], old[PATH_MAX]; |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1225 | int r, fd, oerrno, inplace = 0; |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1226 | struct known_hosts_ctx ctx; |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1227 | u_int foreach_options; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1228 | |
| 1229 | if (!have_identity) { |
| 1230 | cp = tilde_expand_filename(_PATH_SSH_USER_HOSTFILE, pw->pw_uid); |
| 1231 | if (strlcpy(identity_file, cp, sizeof(identity_file)) >= |
| 1232 | sizeof(identity_file)) |
| 1233 | fatal("Specified known hosts path too long"); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1234 | free(cp); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1235 | have_identity = 1; |
| 1236 | } |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1237 | |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1238 | memset(&ctx, 0, sizeof(ctx)); |
| 1239 | ctx.out = stdout; |
| 1240 | ctx.host = name; |
| 1241 | |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1242 | /* |
| 1243 | * Find hosts goes to stdout, hash and deletions happen in-place |
| 1244 | * A corner case is ssh-keygen -HF foo, which should go to stdout |
| 1245 | */ |
| 1246 | if (!find_host && (hash_hosts || delete_host)) { |
| 1247 | if (strlcpy(tmp, identity_file, sizeof(tmp)) >= sizeof(tmp) || |
| 1248 | strlcat(tmp, ".XXXXXXXXXX", sizeof(tmp)) >= sizeof(tmp) || |
| 1249 | strlcpy(old, identity_file, sizeof(old)) >= sizeof(old) || |
| 1250 | strlcat(old, ".old", sizeof(old)) >= sizeof(old)) |
| 1251 | fatal("known_hosts path too long"); |
| 1252 | umask(077); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1253 | if ((fd = mkstemp(tmp)) == -1) |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1254 | fatal("mkstemp: %s", strerror(errno)); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1255 | if ((ctx.out = fdopen(fd, "w")) == NULL) { |
| 1256 | oerrno = errno; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1257 | unlink(tmp); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1258 | fatal("fdopen: %s", strerror(oerrno)); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1259 | } |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1260 | inplace = 1; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1261 | } |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1262 | /* XXX support identity_file == "-" for stdin */ |
djm@openbsd.org | 4739e8d | 2015-05-21 12:01:19 +0000 | [diff] [blame] | 1263 | foreach_options = find_host ? HKF_WANT_MATCH : 0; |
| 1264 | foreach_options |= print_fingerprint ? HKF_WANT_PARSE_KEY : 0; |
djm@openbsd.org | 01b048c | 2018-06-01 04:21:29 +0000 | [diff] [blame] | 1265 | if ((r = hostkeys_foreach(identity_file, (find_host || !hash_hosts) ? |
djm@openbsd.org | 3e088aa | 2018-06-01 03:51:34 +0000 | [diff] [blame] | 1266 | known_hosts_find_delete : known_hosts_hash, &ctx, name, NULL, |
| 1267 | foreach_options)) != 0) { |
deraadt@openbsd.org | 6da413c | 2015-11-28 06:50:52 +0000 | [diff] [blame] | 1268 | if (inplace) |
| 1269 | unlink(tmp); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1270 | fatal("%s: hostkeys_foreach failed: %s", __func__, ssh_err(r)); |
deraadt@openbsd.org | 6da413c | 2015-11-28 06:50:52 +0000 | [diff] [blame] | 1271 | } |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1272 | |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1273 | if (inplace) |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1274 | fclose(ctx.out); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1275 | |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1276 | if (ctx.invalid) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1277 | error("%s is not a valid known_hosts file.", identity_file); |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1278 | if (inplace) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1279 | error("Not replacing existing known_hosts " |
| 1280 | "file because of errors"); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1281 | unlink(tmp); |
| 1282 | } |
| 1283 | exit(1); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1284 | } else if (delete_host && !ctx.found_key) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1285 | logit("Host %s not found in %s", name, identity_file); |
djm@openbsd.org | c837643 | 2015-08-19 23:17:51 +0000 | [diff] [blame] | 1286 | if (inplace) |
| 1287 | unlink(tmp); |
djm@openbsd.org | 2b3c3c7 | 2015-01-18 21:51:19 +0000 | [diff] [blame] | 1288 | } else if (inplace) { |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1289 | /* Backup existing file */ |
| 1290 | if (unlink(old) == -1 && errno != ENOENT) |
| 1291 | fatal("unlink %.100s: %s", old, strerror(errno)); |
| 1292 | if (link(identity_file, old) == -1) |
| 1293 | fatal("link %.100s to %.100s: %s", identity_file, old, |
| 1294 | strerror(errno)); |
| 1295 | /* Move new one into place */ |
| 1296 | if (rename(tmp, identity_file) == -1) { |
| 1297 | error("rename\"%s\" to \"%s\": %s", tmp, identity_file, |
| 1298 | strerror(errno)); |
| 1299 | unlink(tmp); |
| 1300 | unlink(old); |
| 1301 | exit(1); |
| 1302 | } |
| 1303 | |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1304 | printf("%s updated.\n", identity_file); |
| 1305 | printf("Original contents retained as %s\n", old); |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1306 | if (ctx.has_unhashed) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1307 | logit("WARNING: %s contains unhashed entries", old); |
| 1308 | logit("Delete this file to ensure privacy " |
| 1309 | "of hostnames"); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1310 | } |
| 1311 | } |
| 1312 | |
djm@openbsd.org | cecb30b | 2015-01-18 21:49:42 +0000 | [diff] [blame] | 1313 | exit (find_host && !ctx.found_key); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 1314 | } |
| 1315 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1316 | /* |
| 1317 | * Perform changing a passphrase. The argument is the passwd structure |
| 1318 | * for the current user. |
| 1319 | */ |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1320 | static void |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 1321 | do_change_passphrase(struct passwd *pw) |
| 1322 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1323 | char *comment; |
| 1324 | char *old_passphrase, *passphrase1, *passphrase2; |
| 1325 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1326 | struct sshkey *private; |
| 1327 | int r; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 1328 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1329 | if (!have_identity) |
| 1330 | ask_filename(pw, "Enter file in which the key is"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1331 | if (stat(identity_file, &st) < 0) |
| 1332 | fatal("%s: %s", identity_file, strerror(errno)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1333 | /* Try to load the file with empty passphrase. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1334 | r = sshkey_load_private(identity_file, "", &private, &comment); |
| 1335 | if (r == SSH_ERR_KEY_WRONG_PASSPHRASE) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1336 | if (identity_passphrase) |
| 1337 | old_passphrase = xstrdup(identity_passphrase); |
| 1338 | else |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 1339 | old_passphrase = |
| 1340 | read_passphrase("Enter old passphrase: ", |
| 1341 | RP_ALLOW_STDIN); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1342 | r = sshkey_load_private(identity_file, old_passphrase, |
| 1343 | &private, &comment); |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1344 | explicit_bzero(old_passphrase, strlen(old_passphrase)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1345 | free(old_passphrase); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1346 | if (r != 0) |
| 1347 | goto badkey; |
| 1348 | } else if (r != 0) { |
| 1349 | badkey: |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1350 | fatal("Failed to load key %s: %s", identity_file, ssh_err(r)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1351 | } |
djm@openbsd.org | f43d172 | 2015-02-26 20:45:47 +0000 | [diff] [blame] | 1352 | if (comment) |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 1353 | mprintf("Key has comment '%s'\n", comment); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1354 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1355 | /* Ask the new passphrase (twice). */ |
| 1356 | if (identity_new_passphrase) { |
| 1357 | passphrase1 = xstrdup(identity_new_passphrase); |
| 1358 | passphrase2 = NULL; |
| 1359 | } else { |
| 1360 | passphrase1 = |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 1361 | read_passphrase("Enter new passphrase (empty for no " |
| 1362 | "passphrase): ", RP_ALLOW_STDIN); |
| 1363 | passphrase2 = read_passphrase("Enter same passphrase again: ", |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 1364 | RP_ALLOW_STDIN); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1365 | |
| 1366 | /* Verify that they are the same. */ |
| 1367 | if (strcmp(passphrase1, passphrase2) != 0) { |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1368 | explicit_bzero(passphrase1, strlen(passphrase1)); |
| 1369 | explicit_bzero(passphrase2, strlen(passphrase2)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1370 | free(passphrase1); |
| 1371 | free(passphrase2); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1372 | printf("Pass phrases do not match. Try again.\n"); |
| 1373 | exit(1); |
| 1374 | } |
| 1375 | /* Destroy the other copy. */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1376 | explicit_bzero(passphrase2, strlen(passphrase2)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1377 | free(passphrase2); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1378 | } |
| 1379 | |
| 1380 | /* Save the file using the new passphrase. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1381 | if ((r = sshkey_save_private(private, identity_file, passphrase1, |
| 1382 | comment, use_new_format, new_format_cipher, rounds)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1383 | error("Saving key \"%s\" failed: %s.", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1384 | identity_file, ssh_err(r)); |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1385 | explicit_bzero(passphrase1, strlen(passphrase1)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1386 | free(passphrase1); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1387 | sshkey_free(private); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1388 | free(comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1389 | exit(1); |
| 1390 | } |
| 1391 | /* Destroy the passphrase and the copy of the key in memory. */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1392 | explicit_bzero(passphrase1, strlen(passphrase1)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1393 | free(passphrase1); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1394 | sshkey_free(private); /* Destroys contents */ |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1395 | free(comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1396 | |
| 1397 | printf("Your identification has been saved with the new passphrase.\n"); |
| 1398 | exit(0); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1399 | } |
| 1400 | |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1401 | /* |
| 1402 | * Print the SSHFP RR. |
| 1403 | */ |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 1404 | static int |
| 1405 | do_print_resource_record(struct passwd *pw, char *fname, char *hname) |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1406 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1407 | struct sshkey *public; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1408 | char *comment = NULL; |
| 1409 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1410 | int r; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1411 | |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 1412 | if (fname == NULL) |
Damien Miller | 5bb8833 | 2013-07-18 16:13:37 +1000 | [diff] [blame] | 1413 | fatal("%s: no filename", __func__); |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 1414 | if (stat(fname, &st) < 0) { |
| 1415 | if (errno == ENOENT) |
| 1416 | return 0; |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1417 | fatal("%s: %s", fname, strerror(errno)); |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1418 | } |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1419 | if ((r = sshkey_load_public(fname, &public, &comment)) != 0) |
| 1420 | fatal("Failed to read v2 public key from \"%s\": %s.", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1421 | fname, ssh_err(r)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1422 | export_dns_rr(hname, public, stdout, print_generic); |
| 1423 | sshkey_free(public); |
| 1424 | free(comment); |
| 1425 | return 1; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1426 | } |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 1427 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1428 | /* |
| 1429 | * Change the comment of a private key file. |
| 1430 | */ |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1431 | static void |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1432 | do_change_comment(struct passwd *pw) |
| 1433 | { |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 1434 | char new_comment[1024], *comment, *passphrase; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1435 | struct sshkey *private; |
| 1436 | struct sshkey *public; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1437 | struct stat st; |
| 1438 | FILE *f; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1439 | int r, fd; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1440 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1441 | if (!have_identity) |
| 1442 | ask_filename(pw, "Enter file in which the key is"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1443 | if (stat(identity_file, &st) < 0) |
| 1444 | fatal("%s: %s", identity_file, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1445 | if ((r = sshkey_load_private(identity_file, "", |
| 1446 | &private, &comment)) == 0) |
| 1447 | passphrase = xstrdup(""); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1448 | else if (r != SSH_ERR_KEY_WRONG_PASSPHRASE) |
| 1449 | fatal("Cannot load private key \"%s\": %s.", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1450 | identity_file, ssh_err(r)); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1451 | else { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1452 | if (identity_passphrase) |
| 1453 | passphrase = xstrdup(identity_passphrase); |
| 1454 | else if (identity_new_passphrase) |
| 1455 | passphrase = xstrdup(identity_new_passphrase); |
| 1456 | else |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 1457 | passphrase = read_passphrase("Enter passphrase: ", |
| 1458 | RP_ALLOW_STDIN); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1459 | /* Try to load using the passphrase. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1460 | if ((r = sshkey_load_private(identity_file, passphrase, |
| 1461 | &private, &comment)) != 0) { |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1462 | explicit_bzero(passphrase, strlen(passphrase)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1463 | free(passphrase); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1464 | fatal("Cannot load private key \"%s\": %s.", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1465 | identity_file, ssh_err(r)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1466 | } |
| 1467 | } |
halex@openbsd.org | 4d90625 | 2015-11-20 23:04:01 +0000 | [diff] [blame] | 1468 | |
markus@openbsd.org | 1b11ea7 | 2018-02-23 15:58:37 +0000 | [diff] [blame] | 1469 | if (private->type != KEY_ED25519 && private->type != KEY_XMSS && |
| 1470 | !use_new_format) { |
djm@openbsd.org | 873d3e7 | 2017-04-30 23:18:44 +0000 | [diff] [blame] | 1471 | error("Comments are only supported for keys stored in " |
halex@openbsd.org | 4d90625 | 2015-11-20 23:04:01 +0000 | [diff] [blame] | 1472 | "the new format (-o)."); |
tobias@openbsd.org | 704d8c8 | 2015-03-31 11:06:49 +0000 | [diff] [blame] | 1473 | explicit_bzero(passphrase, strlen(passphrase)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1474 | sshkey_free(private); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 1475 | exit(1); |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 1476 | } |
millert@openbsd.org | e40269b | 2017-02-08 20:32:43 +0000 | [diff] [blame] | 1477 | if (comment) |
| 1478 | printf("Key now has comment '%s'\n", comment); |
| 1479 | else |
| 1480 | printf("Key now has no comment\n"); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1481 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1482 | if (identity_comment) { |
| 1483 | strlcpy(new_comment, identity_comment, sizeof(new_comment)); |
| 1484 | } else { |
| 1485 | printf("Enter new comment: "); |
| 1486 | fflush(stdout); |
| 1487 | if (!fgets(new_comment, sizeof(new_comment), stdin)) { |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1488 | explicit_bzero(passphrase, strlen(passphrase)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1489 | sshkey_free(private); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1490 | exit(1); |
| 1491 | } |
Damien Miller | 14b017d | 2007-09-17 16:09:15 +1000 | [diff] [blame] | 1492 | new_comment[strcspn(new_comment, "\n")] = '\0'; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1493 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1494 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1495 | /* Save the file using the new passphrase. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1496 | if ((r = sshkey_save_private(private, identity_file, passphrase, |
| 1497 | new_comment, use_new_format, new_format_cipher, rounds)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1498 | error("Saving key \"%s\" failed: %s", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1499 | identity_file, ssh_err(r)); |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1500 | explicit_bzero(passphrase, strlen(passphrase)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1501 | free(passphrase); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1502 | sshkey_free(private); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1503 | free(comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1504 | exit(1); |
| 1505 | } |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 1506 | explicit_bzero(passphrase, strlen(passphrase)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1507 | free(passphrase); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1508 | if ((r = sshkey_from_private(private, &public)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 1509 | fatal("sshkey_from_private failed: %s", ssh_err(r)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1510 | sshkey_free(private); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1511 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1512 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 1513 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1514 | if (fd == -1) |
| 1515 | fatal("Could not save your public key in %s", identity_file); |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 1516 | f = fdopen(fd, "w"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1517 | if (f == NULL) |
| 1518 | fatal("fdopen %s failed: %s", identity_file, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1519 | if ((r = sshkey_write(public, f)) != 0) |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 1520 | fatal("write key failed: %s", ssh_err(r)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1521 | sshkey_free(public); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 1522 | fprintf(f, " %s\n", new_comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1523 | fclose(f); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1524 | |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1525 | free(comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1526 | |
| 1527 | printf("The comment in your key file has been changed.\n"); |
| 1528 | exit(0); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1529 | } |
| 1530 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1531 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1532 | add_flag_option(struct sshbuf *c, const char *name) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1533 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1534 | int r; |
| 1535 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1536 | debug3("%s: %s", __func__, name); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1537 | if ((r = sshbuf_put_cstring(c, name)) != 0 || |
| 1538 | (r = sshbuf_put_string(c, NULL, 0)) != 0) |
| 1539 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1540 | } |
| 1541 | |
| 1542 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1543 | add_string_option(struct sshbuf *c, const char *name, const char *value) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1544 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1545 | struct sshbuf *b; |
| 1546 | int r; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1547 | |
| 1548 | debug3("%s: %s=%s", __func__, name, value); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1549 | if ((b = sshbuf_new()) == NULL) |
| 1550 | fatal("%s: sshbuf_new failed", __func__); |
| 1551 | if ((r = sshbuf_put_cstring(b, value)) != 0 || |
| 1552 | (r = sshbuf_put_cstring(c, name)) != 0 || |
| 1553 | (r = sshbuf_put_stringb(c, b)) != 0) |
| 1554 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1555 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1556 | sshbuf_free(b); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1557 | } |
| 1558 | |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1559 | #define OPTIONS_CRITICAL 1 |
| 1560 | #define OPTIONS_EXTENSIONS 2 |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1561 | static void |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1562 | prepare_options_buf(struct sshbuf *c, int which) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1563 | { |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 1564 | size_t i; |
| 1565 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1566 | sshbuf_reset(c); |
Damien Miller | 1da6388 | 2010-08-05 13:03:51 +1000 | [diff] [blame] | 1567 | if ((which & OPTIONS_CRITICAL) != 0 && |
| 1568 | certflags_command != NULL) |
| 1569 | add_string_option(c, "force-command", certflags_command); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1570 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
Damien Miller | 2ce12ef | 2011-05-05 14:17:18 +1000 | [diff] [blame] | 1571 | (certflags_flags & CERTOPT_X_FWD) != 0) |
| 1572 | add_flag_option(c, "permit-X11-forwarding"); |
| 1573 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1574 | (certflags_flags & CERTOPT_AGENT_FWD) != 0) |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1575 | add_flag_option(c, "permit-agent-forwarding"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1576 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
| 1577 | (certflags_flags & CERTOPT_PORT_FWD) != 0) |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1578 | add_flag_option(c, "permit-port-forwarding"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1579 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
| 1580 | (certflags_flags & CERTOPT_PTY) != 0) |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1581 | add_flag_option(c, "permit-pty"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1582 | if ((which & OPTIONS_EXTENSIONS) != 0 && |
| 1583 | (certflags_flags & CERTOPT_USER_RC) != 0) |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1584 | add_flag_option(c, "permit-user-rc"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1585 | if ((which & OPTIONS_CRITICAL) != 0 && |
| 1586 | certflags_src_addr != NULL) |
| 1587 | add_string_option(c, "source-address", certflags_src_addr); |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 1588 | for (i = 0; i < ncert_userext; i++) { |
| 1589 | if ((cert_userext[i].crit && (which & OPTIONS_EXTENSIONS)) || |
| 1590 | (!cert_userext[i].crit && (which & OPTIONS_CRITICAL))) |
| 1591 | continue; |
| 1592 | if (cert_userext[i].val == NULL) |
| 1593 | add_flag_option(c, cert_userext[i].key); |
| 1594 | else { |
| 1595 | add_string_option(c, cert_userext[i].key, |
| 1596 | cert_userext[i].val); |
| 1597 | } |
| 1598 | } |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1599 | } |
| 1600 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1601 | static struct sshkey * |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1602 | load_pkcs11_key(char *path) |
| 1603 | { |
| 1604 | #ifdef ENABLE_PKCS11 |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1605 | struct sshkey **keys = NULL, *public, *private = NULL; |
| 1606 | int r, i, nkeys; |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1607 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1608 | if ((r = sshkey_load_public(path, &public, NULL)) != 0) |
| 1609 | fatal("Couldn't load CA public key \"%s\": %s", |
| 1610 | path, ssh_err(r)); |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1611 | |
| 1612 | nkeys = pkcs11_add_provider(pkcs11provider, identity_passphrase, &keys); |
| 1613 | debug3("%s: %d keys", __func__, nkeys); |
| 1614 | if (nkeys <= 0) |
| 1615 | fatal("cannot read public key from pkcs11"); |
| 1616 | for (i = 0; i < nkeys; i++) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1617 | if (sshkey_equal_public(public, keys[i])) { |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1618 | private = keys[i]; |
| 1619 | continue; |
| 1620 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1621 | sshkey_free(keys[i]); |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1622 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1623 | free(keys); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1624 | sshkey_free(public); |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1625 | return private; |
| 1626 | #else |
| 1627 | fatal("no pkcs11 support"); |
| 1628 | #endif /* ENABLE_PKCS11 */ |
| 1629 | } |
| 1630 | |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1631 | /* Signer for sshkey_certify_custom that uses the agent */ |
| 1632 | static int |
| 1633 | agent_signer(const struct sshkey *key, u_char **sigp, size_t *lenp, |
| 1634 | const u_char *data, size_t datalen, |
| 1635 | const char *alg, u_int compat, void *ctx) |
| 1636 | { |
| 1637 | int *agent_fdp = (int *)ctx; |
| 1638 | |
| 1639 | return ssh_agent_sign(*agent_fdp, key, sigp, lenp, |
| 1640 | data, datalen, alg, compat); |
| 1641 | } |
| 1642 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1643 | static void |
| 1644 | do_ca_sign(struct passwd *pw, int argc, char **argv) |
| 1645 | { |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1646 | int r, i, fd, found, agent_fd = -1; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1647 | u_int n; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1648 | struct sshkey *ca, *public; |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1649 | char valid[64], *otmp, *tmp, *cp, *out, *comment, **plist = NULL; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1650 | FILE *f; |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1651 | struct ssh_identitylist *agent_ids; |
| 1652 | size_t j; |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1653 | |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 1654 | #ifdef ENABLE_PKCS11 |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1655 | pkcs11_init(1); |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 1656 | #endif |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1657 | tmp = tilde_expand_filename(ca_key_path, pw->pw_uid); |
| 1658 | if (pkcs11provider != NULL) { |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1659 | /* If a PKCS#11 token was specified then try to use it */ |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1660 | if ((ca = load_pkcs11_key(tmp)) == NULL) |
| 1661 | fatal("No PKCS#11 key matching %s found", ca_key_path); |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1662 | } else if (prefer_agent) { |
| 1663 | /* |
| 1664 | * Agent signature requested. Try to use agent after making |
| 1665 | * sure the public key specified is actually present in the |
| 1666 | * agent. |
| 1667 | */ |
| 1668 | if ((r = sshkey_load_public(tmp, &ca, NULL)) != 0) |
| 1669 | fatal("Cannot load CA public key %s: %s", |
| 1670 | tmp, ssh_err(r)); |
| 1671 | if ((r = ssh_get_authentication_socket(&agent_fd)) != 0) |
| 1672 | fatal("Cannot use public key for CA signature: %s", |
| 1673 | ssh_err(r)); |
| 1674 | if ((r = ssh_fetch_identitylist(agent_fd, &agent_ids)) != 0) |
| 1675 | fatal("Retrieve agent key list: %s", ssh_err(r)); |
| 1676 | found = 0; |
| 1677 | for (j = 0; j < agent_ids->nkeys; j++) { |
| 1678 | if (sshkey_equal(ca, agent_ids->keys[j])) { |
| 1679 | found = 1; |
| 1680 | break; |
| 1681 | } |
| 1682 | } |
| 1683 | if (!found) |
| 1684 | fatal("CA key %s not found in agent", tmp); |
| 1685 | ssh_free_identitylist(agent_ids); |
| 1686 | ca->flags |= SSHKEY_FLAG_EXT; |
| 1687 | } else { |
| 1688 | /* 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] | 1689 | ca = load_identity(tmp); |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1690 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1691 | free(tmp); |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1692 | |
djm@openbsd.org | 57464e3 | 2016-05-02 09:36:42 +0000 | [diff] [blame] | 1693 | if (key_type_name != NULL && |
| 1694 | sshkey_type_from_name(key_type_name) != ca->type) { |
| 1695 | fatal("CA key type %s doesn't match specified %s", |
| 1696 | sshkey_ssh_name(ca), key_type_name); |
| 1697 | } |
| 1698 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1699 | for (i = 0; i < argc; i++) { |
| 1700 | /* Split list of principals */ |
| 1701 | n = 0; |
| 1702 | if (cert_principals != NULL) { |
| 1703 | otmp = tmp = xstrdup(cert_principals); |
| 1704 | plist = NULL; |
| 1705 | for (; (cp = strsep(&tmp, ",")) != NULL; n++) { |
deraadt@openbsd.org | 657a5fb | 2015-04-24 01:36:00 +0000 | [diff] [blame] | 1706 | plist = xreallocarray(plist, n + 1, sizeof(*plist)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1707 | if (*(plist[n] = xstrdup(cp)) == '\0') |
| 1708 | fatal("Empty principal name"); |
| 1709 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1710 | free(otmp); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1711 | } |
djm@openbsd.org | ca61324 | 2018-02-10 05:48:46 +0000 | [diff] [blame] | 1712 | if (n > SSHKEY_CERT_MAX_PRINCIPALS) |
| 1713 | fatal("Too many certificate principals specified"); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1714 | |
| 1715 | tmp = tilde_expand_filename(argv[i], pw->pw_uid); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1716 | if ((r = sshkey_load_public(tmp, &public, &comment)) != 0) |
| 1717 | fatal("%s: unable to open \"%s\": %s", |
| 1718 | __func__, tmp, ssh_err(r)); |
Damien Miller | eb8b60e | 2010-08-31 22:41:14 +1000 | [diff] [blame] | 1719 | if (public->type != KEY_RSA && public->type != KEY_DSA && |
markus@openbsd.org | 1b11ea7 | 2018-02-23 15:58:37 +0000 | [diff] [blame] | 1720 | public->type != KEY_ECDSA && public->type != KEY_ED25519 && |
| 1721 | public->type != KEY_XMSS) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1722 | fatal("%s: key \"%s\" type %s cannot be certified", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1723 | __func__, tmp, sshkey_type(public)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1724 | |
| 1725 | /* Prepare certificate to sign */ |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1726 | if ((r = sshkey_to_certified(public)) != 0) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1727 | fatal("Could not upgrade key %s to certificate: %s", |
| 1728 | tmp, ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1729 | public->cert->type = cert_key_type; |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1730 | public->cert->serial = (u_int64_t)cert_serial; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1731 | public->cert->key_id = xstrdup(cert_key_id); |
| 1732 | public->cert->nprincipals = n; |
| 1733 | public->cert->principals = plist; |
| 1734 | public->cert->valid_after = cert_valid_from; |
| 1735 | public->cert->valid_before = cert_valid_to; |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1736 | prepare_options_buf(public->cert->critical, OPTIONS_CRITICAL); |
| 1737 | prepare_options_buf(public->cert->extensions, |
| 1738 | OPTIONS_EXTENSIONS); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1739 | if ((r = sshkey_from_private(ca, |
| 1740 | &public->cert->signature_key)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 1741 | fatal("sshkey_from_private (ca key): %s", ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1742 | |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 1743 | if (agent_fd != -1 && (ca->flags & SSHKEY_FLAG_EXT) != 0) { |
| 1744 | if ((r = sshkey_certify_custom(public, ca, |
| 1745 | key_type_name, agent_signer, &agent_fd)) != 0) |
| 1746 | fatal("Couldn't certify key %s via agent: %s", |
| 1747 | tmp, ssh_err(r)); |
| 1748 | } else { |
| 1749 | if ((sshkey_certify(public, ca, key_type_name)) != 0) |
| 1750 | fatal("Couldn't certify key %s: %s", |
| 1751 | tmp, ssh_err(r)); |
| 1752 | } |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1753 | |
| 1754 | if ((cp = strrchr(tmp, '.')) != NULL && strcmp(cp, ".pub") == 0) |
| 1755 | *cp = '\0'; |
| 1756 | xasprintf(&out, "%s-cert.pub", tmp); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1757 | free(tmp); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1758 | |
| 1759 | if ((fd = open(out, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) |
| 1760 | fatal("Could not open \"%s\" for writing: %s", out, |
| 1761 | strerror(errno)); |
| 1762 | if ((f = fdopen(fd, "w")) == NULL) |
| 1763 | fatal("%s: fdopen: %s", __func__, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1764 | if ((r = sshkey_write(public, f)) != 0) |
| 1765 | fatal("Could not write certified key to %s: %s", |
| 1766 | out, ssh_err(r)); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1767 | fprintf(f, " %s\n", comment); |
| 1768 | fclose(f); |
| 1769 | |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1770 | if (!quiet) { |
djm@openbsd.org | 964ab3e | 2015-11-19 01:12:32 +0000 | [diff] [blame] | 1771 | sshkey_format_cert_validity(public->cert, |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1772 | valid, sizeof(valid)); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1773 | logit("Signed %s key %s: id \"%s\" serial %llu%s%s " |
djm@openbsd.org | 964ab3e | 2015-11-19 01:12:32 +0000 | [diff] [blame] | 1774 | "valid %s", sshkey_cert_type(public), |
Damien Miller | 821de0a | 2011-01-11 17:20:29 +1100 | [diff] [blame] | 1775 | out, public->cert->key_id, |
| 1776 | (unsigned long long)public->cert->serial, |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1777 | cert_principals != NULL ? " for " : "", |
| 1778 | cert_principals != NULL ? cert_principals : "", |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1779 | valid); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1780 | } |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1781 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1782 | sshkey_free(public); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1783 | free(out); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1784 | } |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 1785 | #ifdef ENABLE_PKCS11 |
Damien Miller | 757f34e | 2010-08-05 13:05:31 +1000 | [diff] [blame] | 1786 | pkcs11_terminate(); |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 1787 | #endif |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1788 | exit(0); |
| 1789 | } |
| 1790 | |
| 1791 | static u_int64_t |
| 1792 | parse_relative_time(const char *s, time_t now) |
| 1793 | { |
| 1794 | int64_t mul, secs; |
| 1795 | |
| 1796 | mul = *s == '-' ? -1 : 1; |
| 1797 | |
| 1798 | if ((secs = convtime(s + 1)) == -1) |
| 1799 | fatal("Invalid relative certificate time %s", s); |
| 1800 | if (mul == -1 && secs > now) |
| 1801 | fatal("Certificate time %s cannot be represented", s); |
| 1802 | return now + (u_int64_t)(secs * mul); |
| 1803 | } |
| 1804 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1805 | static void |
| 1806 | parse_cert_times(char *timespec) |
| 1807 | { |
| 1808 | char *from, *to; |
| 1809 | time_t now = time(NULL); |
| 1810 | int64_t secs; |
| 1811 | |
| 1812 | /* +timespec relative to now */ |
| 1813 | if (*timespec == '+' && strchr(timespec, ':') == NULL) { |
| 1814 | if ((secs = convtime(timespec + 1)) == -1) |
| 1815 | fatal("Invalid relative certificate life %s", timespec); |
| 1816 | cert_valid_to = now + secs; |
| 1817 | /* |
| 1818 | * Backdate certificate one minute to avoid problems on hosts |
| 1819 | * with poorly-synchronised clocks. |
| 1820 | */ |
| 1821 | cert_valid_from = ((now - 59)/ 60) * 60; |
| 1822 | return; |
| 1823 | } |
| 1824 | |
| 1825 | /* |
| 1826 | * from:to, where |
djm@openbsd.org@openbsd.org | d52131a | 2017-11-03 05:14:04 +0000 | [diff] [blame] | 1827 | * from := [+-]timespec | YYYYMMDD | YYYYMMDDHHMMSS | "always" |
| 1828 | * to := [+-]timespec | YYYYMMDD | YYYYMMDDHHMMSS | "forever" |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1829 | */ |
| 1830 | from = xstrdup(timespec); |
| 1831 | to = strchr(from, ':'); |
| 1832 | if (to == NULL || from == to || *(to + 1) == '\0') |
Damien Miller | 910f209 | 2010-03-04 14:17:22 +1100 | [diff] [blame] | 1833 | fatal("Invalid certificate life specification %s", timespec); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1834 | *to++ = '\0'; |
| 1835 | |
| 1836 | if (*from == '-' || *from == '+') |
| 1837 | cert_valid_from = parse_relative_time(from, now); |
djm@openbsd.org@openbsd.org | d52131a | 2017-11-03 05:14:04 +0000 | [diff] [blame] | 1838 | else if (strcmp(from, "always") == 0) |
| 1839 | cert_valid_from = 0; |
djm@openbsd.org | bf0fbf2 | 2018-03-12 00:52:01 +0000 | [diff] [blame] | 1840 | else if (parse_absolute_time(from, &cert_valid_from) != 0) |
| 1841 | fatal("Invalid from time \"%s\"", from); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1842 | |
| 1843 | if (*to == '-' || *to == '+') |
Damien Miller | 5b01b0d | 2013-10-23 16:31:31 +1100 | [diff] [blame] | 1844 | cert_valid_to = parse_relative_time(to, now); |
djm@openbsd.org@openbsd.org | d52131a | 2017-11-03 05:14:04 +0000 | [diff] [blame] | 1845 | else if (strcmp(to, "forever") == 0) |
| 1846 | cert_valid_to = ~(u_int64_t)0; |
djm@openbsd.org | bf0fbf2 | 2018-03-12 00:52:01 +0000 | [diff] [blame] | 1847 | else if (parse_absolute_time(to, &cert_valid_to) != 0) |
| 1848 | fatal("Invalid to time \"%s\"", to); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1849 | |
| 1850 | if (cert_valid_to <= cert_valid_from) |
| 1851 | fatal("Empty certificate validity interval"); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1852 | free(from); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1853 | } |
| 1854 | |
| 1855 | static void |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1856 | add_cert_option(char *opt) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1857 | { |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 1858 | char *val, *cp; |
| 1859 | int iscrit = 0; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1860 | |
Damien Miller | 044f4a6 | 2011-05-05 14:14:08 +1000 | [diff] [blame] | 1861 | if (strcasecmp(opt, "clear") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1862 | certflags_flags = 0; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1863 | else if (strcasecmp(opt, "no-x11-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1864 | certflags_flags &= ~CERTOPT_X_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1865 | else if (strcasecmp(opt, "permit-x11-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1866 | certflags_flags |= CERTOPT_X_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1867 | else if (strcasecmp(opt, "no-agent-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1868 | certflags_flags &= ~CERTOPT_AGENT_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1869 | else if (strcasecmp(opt, "permit-agent-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1870 | certflags_flags |= CERTOPT_AGENT_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1871 | else if (strcasecmp(opt, "no-port-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1872 | certflags_flags &= ~CERTOPT_PORT_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1873 | else if (strcasecmp(opt, "permit-port-forwarding") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1874 | certflags_flags |= CERTOPT_PORT_FWD; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1875 | else if (strcasecmp(opt, "no-pty") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1876 | certflags_flags &= ~CERTOPT_PTY; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1877 | else if (strcasecmp(opt, "permit-pty") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1878 | certflags_flags |= CERTOPT_PTY; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1879 | else if (strcasecmp(opt, "no-user-rc") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1880 | certflags_flags &= ~CERTOPT_USER_RC; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1881 | else if (strcasecmp(opt, "permit-user-rc") == 0) |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1882 | certflags_flags |= CERTOPT_USER_RC; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1883 | else if (strncasecmp(opt, "force-command=", 14) == 0) { |
| 1884 | val = opt + 14; |
| 1885 | if (*val == '\0') |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1886 | fatal("Empty force-command option"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1887 | if (certflags_command != NULL) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1888 | fatal("force-command already specified"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1889 | certflags_command = xstrdup(val); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1890 | } else if (strncasecmp(opt, "source-address=", 15) == 0) { |
| 1891 | val = opt + 15; |
| 1892 | if (*val == '\0') |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1893 | fatal("Empty source-address option"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1894 | if (certflags_src_addr != NULL) |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1895 | fatal("source-address already specified"); |
| 1896 | if (addr_match_cidr_list(NULL, val) != 0) |
| 1897 | fatal("Invalid source-address list"); |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 1898 | certflags_src_addr = xstrdup(val); |
djm@openbsd.org | 249516e | 2017-04-29 04:12:25 +0000 | [diff] [blame] | 1899 | } else if (strncasecmp(opt, "extension:", 10) == 0 || |
| 1900 | (iscrit = (strncasecmp(opt, "critical:", 9) == 0))) { |
| 1901 | val = xstrdup(strchr(opt, ':') + 1); |
| 1902 | if ((cp = strchr(val, '=')) != NULL) |
| 1903 | *cp++ = '\0'; |
| 1904 | cert_userext = xreallocarray(cert_userext, ncert_userext + 1, |
| 1905 | sizeof(*cert_userext)); |
| 1906 | cert_userext[ncert_userext].key = val; |
| 1907 | cert_userext[ncert_userext].val = cp == NULL ? |
| 1908 | NULL : xstrdup(cp); |
| 1909 | cert_userext[ncert_userext].crit = iscrit; |
| 1910 | ncert_userext++; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1911 | } else |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1912 | fatal("Unsupported certificate option \"%s\"", opt); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 1913 | } |
| 1914 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1915 | static void |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1916 | show_options(struct sshbuf *optbuf, int in_critical) |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1917 | { |
Damien Miller | 633de33 | 2014-05-15 13:48:26 +1000 | [diff] [blame] | 1918 | char *name, *arg; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1919 | struct sshbuf *options, *option = NULL; |
| 1920 | int r; |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1921 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1922 | if ((options = sshbuf_fromb(optbuf)) == NULL) |
| 1923 | fatal("%s: sshbuf_fromb failed", __func__); |
| 1924 | while (sshbuf_len(options) != 0) { |
| 1925 | sshbuf_free(option); |
| 1926 | option = NULL; |
| 1927 | if ((r = sshbuf_get_cstring(options, &name, NULL)) != 0 || |
| 1928 | (r = sshbuf_froms(options, &option)) != 0) |
| 1929 | fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1930 | printf(" %s", name); |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1931 | if (!in_critical && |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1932 | (strcmp(name, "permit-X11-forwarding") == 0 || |
| 1933 | strcmp(name, "permit-agent-forwarding") == 0 || |
| 1934 | strcmp(name, "permit-port-forwarding") == 0 || |
| 1935 | strcmp(name, "permit-pty") == 0 || |
| 1936 | strcmp(name, "permit-user-rc") == 0)) |
| 1937 | printf("\n"); |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1938 | else if (in_critical && |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1939 | (strcmp(name, "force-command") == 0 || |
| 1940 | strcmp(name, "source-address") == 0)) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1941 | if ((r = sshbuf_get_cstring(option, &arg, NULL)) != 0) |
| 1942 | fatal("%s: buffer error: %s", |
| 1943 | __func__, ssh_err(r)); |
Damien Miller | 633de33 | 2014-05-15 13:48:26 +1000 | [diff] [blame] | 1944 | printf(" %s\n", arg); |
| 1945 | free(arg); |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1946 | } else { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1947 | printf(" UNKNOWN OPTION (len %zu)\n", |
| 1948 | sshbuf_len(option)); |
| 1949 | sshbuf_reset(option); |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1950 | } |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 1951 | free(name); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1952 | if (sshbuf_len(option) != 0) |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1953 | fatal("Option corrupt: extra data at end"); |
| 1954 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1955 | sshbuf_free(option); |
| 1956 | sshbuf_free(options); |
Damien Miller | d834d35 | 2010-06-26 09:48:02 +1000 | [diff] [blame] | 1957 | } |
| 1958 | |
| 1959 | static void |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 1960 | print_cert(struct sshkey *key) |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 1961 | { |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1962 | char valid[64], *key_fp, *ca_fp; |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1963 | u_int i; |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1964 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1965 | key_fp = sshkey_fingerprint(key, fingerprint_hash, SSH_FP_DEFAULT); |
| 1966 | ca_fp = sshkey_fingerprint(key->cert->signature_key, |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 1967 | fingerprint_hash, SSH_FP_DEFAULT); |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 1968 | if (key_fp == NULL || ca_fp == NULL) |
| 1969 | fatal("%s: sshkey_fingerprint fail", __func__); |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1970 | sshkey_format_cert_validity(key->cert, valid, sizeof(valid)); |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 1971 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1972 | printf(" Type: %s %s certificate\n", sshkey_ssh_name(key), |
| 1973 | sshkey_cert_type(key)); |
| 1974 | printf(" Public key: %s %s\n", sshkey_type(key), key_fp); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1975 | printf(" Signing CA: %s %s\n", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1976 | sshkey_type(key->cert->signature_key), ca_fp); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1977 | printf(" Key ID: \"%s\"\n", key->cert->key_id); |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1978 | printf(" Serial: %llu\n", (unsigned long long)key->cert->serial); |
djm@openbsd.org | 499cf36 | 2015-11-19 01:08:55 +0000 | [diff] [blame] | 1979 | printf(" Valid: %s\n", valid); |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 1980 | printf(" Principals: "); |
| 1981 | if (key->cert->nprincipals == 0) |
| 1982 | printf("(none)\n"); |
| 1983 | else { |
| 1984 | for (i = 0; i < key->cert->nprincipals; i++) |
| 1985 | printf("\n %s", |
| 1986 | key->cert->principals[i]); |
| 1987 | printf("\n"); |
| 1988 | } |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 1989 | printf(" Critical Options: "); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 1990 | if (sshbuf_len(key->cert->critical) == 0) |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 1991 | printf("(none)\n"); |
| 1992 | else { |
| 1993 | printf("\n"); |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1994 | show_options(key->cert->critical, 1); |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 1995 | } |
djm@openbsd.org | c28fc62 | 2015-07-03 03:43:18 +0000 | [diff] [blame] | 1996 | printf(" Extensions: "); |
| 1997 | if (sshbuf_len(key->cert->extensions) == 0) |
| 1998 | printf("(none)\n"); |
| 1999 | else { |
| 2000 | printf("\n"); |
| 2001 | show_options(key->cert->extensions, 0); |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 2002 | } |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2003 | } |
| 2004 | |
| 2005 | static void |
| 2006 | do_show_cert(struct passwd *pw) |
| 2007 | { |
| 2008 | struct sshkey *key = NULL; |
| 2009 | struct stat st; |
| 2010 | int r, is_stdin = 0, ok = 0; |
| 2011 | FILE *f; |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 2012 | char *cp, *line = NULL; |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2013 | const char *path; |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 2014 | size_t linesize = 0; |
djm@openbsd.org | 1a31d02 | 2016-05-02 08:49:03 +0000 | [diff] [blame] | 2015 | u_long lnum = 0; |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2016 | |
| 2017 | if (!have_identity) |
| 2018 | ask_filename(pw, "Enter file in which the key is"); |
| 2019 | if (strcmp(identity_file, "-") != 0 && stat(identity_file, &st) < 0) |
| 2020 | fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
| 2021 | |
| 2022 | path = identity_file; |
| 2023 | if (strcmp(path, "-") == 0) { |
| 2024 | f = stdin; |
| 2025 | path = "(stdin)"; |
| 2026 | is_stdin = 1; |
| 2027 | } else if ((f = fopen(identity_file, "r")) == NULL) |
| 2028 | fatal("fopen %s: %s", identity_file, strerror(errno)); |
| 2029 | |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 2030 | while (getline(&line, &linesize, f) != -1) { |
| 2031 | lnum++; |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2032 | sshkey_free(key); |
| 2033 | key = NULL; |
| 2034 | /* Trim leading space and comments */ |
| 2035 | cp = line + strspn(line, " \t"); |
| 2036 | if (*cp == '#' || *cp == '\0') |
| 2037 | continue; |
| 2038 | if ((key = sshkey_new(KEY_UNSPEC)) == NULL) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 2039 | fatal("sshkey_new"); |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2040 | if ((r = sshkey_read(key, &cp)) != 0) { |
| 2041 | error("%s:%lu: invalid key: %s", path, |
| 2042 | lnum, ssh_err(r)); |
| 2043 | continue; |
| 2044 | } |
| 2045 | if (!sshkey_is_cert(key)) { |
| 2046 | error("%s:%lu is not a certificate", path, lnum); |
| 2047 | continue; |
| 2048 | } |
| 2049 | ok = 1; |
| 2050 | if (!is_stdin && lnum == 1) |
| 2051 | printf("%s:\n", path); |
| 2052 | else |
| 2053 | printf("%s:%lu:\n", path, lnum); |
| 2054 | print_cert(key); |
| 2055 | } |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 2056 | free(line); |
djm@openbsd.org | 94bc0b7 | 2015-11-13 04:34:15 +0000 | [diff] [blame] | 2057 | sshkey_free(key); |
| 2058 | fclose(f); |
| 2059 | exit(ok ? 0 : 1); |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 2060 | } |
| 2061 | |
| 2062 | static void |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2063 | load_krl(const char *path, struct ssh_krl **krlp) |
| 2064 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2065 | struct sshbuf *krlbuf; |
| 2066 | int r, fd; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2067 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2068 | if ((krlbuf = sshbuf_new()) == NULL) |
| 2069 | fatal("sshbuf_new failed"); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2070 | if ((fd = open(path, O_RDONLY)) == -1) |
| 2071 | fatal("open %s: %s", path, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2072 | if ((r = sshkey_load_file(fd, krlbuf)) != 0) |
| 2073 | fatal("Unable to load KRL: %s", ssh_err(r)); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2074 | close(fd); |
| 2075 | /* XXX check sigs */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2076 | if ((r = ssh_krl_from_blob(krlbuf, krlp, NULL, 0)) != 0 || |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2077 | *krlp == NULL) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2078 | fatal("Invalid KRL file: %s", ssh_err(r)); |
| 2079 | sshbuf_free(krlbuf); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2080 | } |
| 2081 | |
| 2082 | static void |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2083 | 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] | 2084 | const struct sshkey *ca, struct ssh_krl *krl) |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2085 | { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2086 | struct sshkey *key = NULL; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2087 | u_long lnum = 0; |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 2088 | char *path, *cp, *ep, *line = NULL; |
| 2089 | size_t linesize = 0; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2090 | unsigned long long serial, serial2; |
| 2091 | int i, was_explicit_key, was_sha1, r; |
| 2092 | FILE *krl_spec; |
| 2093 | |
| 2094 | path = tilde_expand_filename(file, pw->pw_uid); |
| 2095 | if (strcmp(path, "-") == 0) { |
| 2096 | krl_spec = stdin; |
| 2097 | free(path); |
| 2098 | path = xstrdup("(standard input)"); |
| 2099 | } else if ((krl_spec = fopen(path, "r")) == NULL) |
| 2100 | fatal("fopen %s: %s", path, strerror(errno)); |
| 2101 | |
| 2102 | if (!quiet) |
| 2103 | printf("Revoking from %s\n", path); |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 2104 | while (getline(&line, &linesize, krl_spec) != -1) { |
| 2105 | lnum++; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2106 | was_explicit_key = was_sha1 = 0; |
| 2107 | cp = line + strspn(line, " \t"); |
| 2108 | /* Trim trailing space, comments and strip \n */ |
| 2109 | for (i = 0, r = -1; cp[i] != '\0'; i++) { |
| 2110 | if (cp[i] == '#' || cp[i] == '\n') { |
| 2111 | cp[i] = '\0'; |
| 2112 | break; |
| 2113 | } |
| 2114 | if (cp[i] == ' ' || cp[i] == '\t') { |
| 2115 | /* Remember the start of a span of whitespace */ |
| 2116 | if (r == -1) |
| 2117 | r = i; |
| 2118 | } else |
| 2119 | r = -1; |
| 2120 | } |
| 2121 | if (r != -1) |
| 2122 | cp[r] = '\0'; |
| 2123 | if (*cp == '\0') |
| 2124 | continue; |
| 2125 | if (strncasecmp(cp, "serial:", 7) == 0) { |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2126 | if (ca == NULL && !wild_ca) { |
Damien Miller | d234afb | 2013-08-21 02:42:58 +1000 | [diff] [blame] | 2127 | fatal("revoking certificates by serial number " |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2128 | "requires specification of a CA key"); |
| 2129 | } |
| 2130 | cp += 7; |
| 2131 | cp = cp + strspn(cp, " \t"); |
| 2132 | errno = 0; |
| 2133 | serial = strtoull(cp, &ep, 0); |
| 2134 | if (*cp == '\0' || (*ep != '\0' && *ep != '-')) |
| 2135 | fatal("%s:%lu: invalid serial \"%s\"", |
| 2136 | path, lnum, cp); |
| 2137 | if (errno == ERANGE && serial == ULLONG_MAX) |
| 2138 | fatal("%s:%lu: serial out of range", |
| 2139 | path, lnum); |
| 2140 | serial2 = serial; |
| 2141 | if (*ep == '-') { |
| 2142 | cp = ep + 1; |
| 2143 | errno = 0; |
| 2144 | serial2 = strtoull(cp, &ep, 0); |
| 2145 | if (*cp == '\0' || *ep != '\0') |
| 2146 | fatal("%s:%lu: invalid serial \"%s\"", |
| 2147 | path, lnum, cp); |
| 2148 | if (errno == ERANGE && serial2 == ULLONG_MAX) |
| 2149 | fatal("%s:%lu: serial out of range", |
| 2150 | path, lnum); |
| 2151 | if (serial2 <= serial) |
| 2152 | fatal("%s:%lu: invalid serial range " |
| 2153 | "%llu:%llu", path, lnum, |
| 2154 | (unsigned long long)serial, |
| 2155 | (unsigned long long)serial2); |
| 2156 | } |
| 2157 | if (ssh_krl_revoke_cert_by_serial_range(krl, |
| 2158 | ca, serial, serial2) != 0) { |
| 2159 | fatal("%s: revoke serial failed", |
| 2160 | __func__); |
| 2161 | } |
| 2162 | } else if (strncasecmp(cp, "id:", 3) == 0) { |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2163 | if (ca == NULL && !wild_ca) { |
Damien Miller | d5d9d7b | 2013-08-21 02:43:27 +1000 | [diff] [blame] | 2164 | fatal("revoking certificates by key ID " |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2165 | "requires specification of a CA key"); |
| 2166 | } |
| 2167 | cp += 3; |
| 2168 | cp = cp + strspn(cp, " \t"); |
| 2169 | if (ssh_krl_revoke_cert_by_key_id(krl, ca, cp) != 0) |
| 2170 | fatal("%s: revoke key ID failed", __func__); |
| 2171 | } else { |
| 2172 | if (strncasecmp(cp, "key:", 4) == 0) { |
| 2173 | cp += 4; |
| 2174 | cp = cp + strspn(cp, " \t"); |
| 2175 | was_explicit_key = 1; |
| 2176 | } else if (strncasecmp(cp, "sha1:", 5) == 0) { |
| 2177 | cp += 5; |
| 2178 | cp = cp + strspn(cp, " \t"); |
| 2179 | was_sha1 = 1; |
| 2180 | } else { |
| 2181 | /* |
| 2182 | * Just try to process the line as a key. |
| 2183 | * Parsing will fail if it isn't. |
| 2184 | */ |
| 2185 | } |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2186 | if ((key = sshkey_new(KEY_UNSPEC)) == NULL) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 2187 | fatal("sshkey_new"); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2188 | if ((r = sshkey_read(key, &cp)) != 0) |
| 2189 | fatal("%s:%lu: invalid key: %s", |
| 2190 | path, lnum, ssh_err(r)); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2191 | if (was_explicit_key) |
| 2192 | r = ssh_krl_revoke_key_explicit(krl, key); |
| 2193 | else if (was_sha1) |
| 2194 | r = ssh_krl_revoke_key_sha1(krl, key); |
| 2195 | else |
| 2196 | r = ssh_krl_revoke_key(krl, key); |
| 2197 | if (r != 0) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2198 | fatal("%s: revoke key failed: %s", |
| 2199 | __func__, ssh_err(r)); |
| 2200 | sshkey_free(key); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2201 | } |
| 2202 | } |
| 2203 | if (strcmp(path, "-") != 0) |
| 2204 | fclose(krl_spec); |
markus@openbsd.org | 7f90635 | 2018-06-06 18:29:18 +0000 | [diff] [blame] | 2205 | free(line); |
Damien Miller | 0d6771b | 2013-04-23 15:23:24 +1000 | [diff] [blame] | 2206 | free(path); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2207 | } |
| 2208 | |
| 2209 | static void |
| 2210 | do_gen_krl(struct passwd *pw, int updating, int argc, char **argv) |
| 2211 | { |
| 2212 | struct ssh_krl *krl; |
| 2213 | struct stat sb; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2214 | struct sshkey *ca = NULL; |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2215 | int fd, i, r, wild_ca = 0; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2216 | char *tmp; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2217 | struct sshbuf *kbuf; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2218 | |
| 2219 | if (*identity_file == '\0') |
| 2220 | fatal("KRL generation requires an output file"); |
| 2221 | if (stat(identity_file, &sb) == -1) { |
| 2222 | if (errno != ENOENT) |
| 2223 | fatal("Cannot access KRL \"%s\": %s", |
| 2224 | identity_file, strerror(errno)); |
| 2225 | if (updating) |
| 2226 | fatal("KRL \"%s\" does not exist", identity_file); |
| 2227 | } |
| 2228 | if (ca_key_path != NULL) { |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2229 | if (strcasecmp(ca_key_path, "none") == 0) |
| 2230 | wild_ca = 1; |
| 2231 | else { |
| 2232 | tmp = tilde_expand_filename(ca_key_path, pw->pw_uid); |
| 2233 | if ((r = sshkey_load_public(tmp, &ca, NULL)) != 0) |
| 2234 | fatal("Cannot load CA public key %s: %s", |
| 2235 | tmp, ssh_err(r)); |
| 2236 | free(tmp); |
| 2237 | } |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2238 | } |
| 2239 | |
| 2240 | if (updating) |
| 2241 | load_krl(identity_file, &krl); |
| 2242 | else if ((krl = ssh_krl_init()) == NULL) |
| 2243 | fatal("couldn't create KRL"); |
| 2244 | |
| 2245 | if (cert_serial != 0) |
| 2246 | ssh_krl_set_version(krl, cert_serial); |
| 2247 | if (identity_comment != NULL) |
| 2248 | ssh_krl_set_comment(krl, identity_comment); |
| 2249 | |
| 2250 | for (i = 0; i < argc; i++) |
djm@openbsd.org | 669aee9 | 2015-01-30 01:10:33 +0000 | [diff] [blame] | 2251 | update_krl_from_file(pw, argv[i], wild_ca, ca, krl); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2252 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2253 | if ((kbuf = sshbuf_new()) == NULL) |
| 2254 | fatal("sshbuf_new failed"); |
| 2255 | if (ssh_krl_to_blob(krl, kbuf, NULL, 0) != 0) |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2256 | fatal("Couldn't generate KRL"); |
| 2257 | if ((fd = open(identity_file, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) |
| 2258 | fatal("open %s: %s", identity_file, strerror(errno)); |
markus@openbsd.org | 49f47e6 | 2018-07-09 21:59:10 +0000 | [diff] [blame] | 2259 | if (atomicio(vwrite, fd, sshbuf_mutable_ptr(kbuf), sshbuf_len(kbuf)) != |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2260 | sshbuf_len(kbuf)) |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2261 | fatal("write %s: %s", identity_file, strerror(errno)); |
| 2262 | close(fd); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2263 | sshbuf_free(kbuf); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2264 | ssh_krl_free(krl); |
mmcc@openbsd.org | 89540b6 | 2015-12-11 02:31:47 +0000 | [diff] [blame] | 2265 | sshkey_free(ca); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2266 | } |
| 2267 | |
| 2268 | static void |
| 2269 | do_check_krl(struct passwd *pw, int argc, char **argv) |
| 2270 | { |
| 2271 | int i, r, ret = 0; |
| 2272 | char *comment; |
| 2273 | struct ssh_krl *krl; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2274 | struct sshkey *k; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2275 | |
| 2276 | if (*identity_file == '\0') |
| 2277 | fatal("KRL checking requires an input file"); |
| 2278 | load_krl(identity_file, &krl); |
| 2279 | for (i = 0; i < argc; i++) { |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2280 | if ((r = sshkey_load_public(argv[i], &k, &comment)) != 0) |
| 2281 | fatal("Cannot load public key %s: %s", |
| 2282 | argv[i], ssh_err(r)); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2283 | r = ssh_krl_check_key(krl, k); |
| 2284 | printf("%s%s%s%s: %s\n", argv[i], |
| 2285 | *comment ? " (" : "", comment, *comment ? ")" : "", |
| 2286 | r == 0 ? "ok" : "REVOKED"); |
| 2287 | if (r != 0) |
| 2288 | ret = 1; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2289 | sshkey_free(k); |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2290 | free(comment); |
| 2291 | } |
| 2292 | ssh_krl_free(krl); |
| 2293 | exit(ret); |
| 2294 | } |
| 2295 | |
| 2296 | static void |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 2297 | usage(void) |
| 2298 | { |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2299 | fprintf(stderr, |
djm@openbsd.org | 873d3e7 | 2017-04-30 23:18:44 +0000 | [diff] [blame] | 2300 | "usage: ssh-keygen [-q] [-b bits] [-t dsa | ecdsa | ed25519 | rsa]\n" |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2301 | " [-N new_passphrase] [-C comment] [-f output_keyfile]\n" |
| 2302 | " ssh-keygen -p [-P old_passphrase] [-N new_passphrase] [-f keyfile]\n" |
| 2303 | " ssh-keygen -i [-m key_format] [-f input_keyfile]\n" |
| 2304 | " ssh-keygen -e [-m key_format] [-f input_keyfile]\n" |
| 2305 | " ssh-keygen -y [-f input_keyfile]\n" |
| 2306 | " ssh-keygen -c [-P passphrase] [-C comment] [-f keyfile]\n" |
naddy@openbsd.org | 6288e3a | 2015-02-24 15:24:05 +0000 | [diff] [blame] | 2307 | " ssh-keygen -l [-v] [-E fingerprint_hash] [-f input_keyfile]\n" |
djm@openbsd.org | 873d3e7 | 2017-04-30 23:18:44 +0000 | [diff] [blame] | 2308 | " ssh-keygen -B [-f input_keyfile]\n"); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 2309 | #ifdef ENABLE_PKCS11 |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2310 | fprintf(stderr, |
| 2311 | " ssh-keygen -D pkcs11\n"); |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 2312 | #endif |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2313 | fprintf(stderr, |
| 2314 | " ssh-keygen -F hostname [-f known_hosts_file] [-l]\n" |
| 2315 | " ssh-keygen -H [-f known_hosts_file]\n" |
| 2316 | " ssh-keygen -R hostname [-f known_hosts_file]\n" |
| 2317 | " ssh-keygen -r hostname [-f input_keyfile] [-g]\n" |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2318 | #ifdef WITH_OPENSSL |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2319 | " ssh-keygen -G output_file [-v] [-b bits] [-M memory] [-S start_point]\n" |
| 2320 | " ssh-keygen -T output_file -f input_file [-v] [-a rounds] [-J num_lines]\n" |
| 2321 | " [-j start_line] [-K checkpt] [-W generator]\n" |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2322 | #endif |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 2323 | " ssh-keygen -s ca_key -I certificate_identity [-h] [-U]\n" |
| 2324 | " [-D pkcs11_provider] [-n principals] [-O option]\n" |
| 2325 | " [-V validity_interval] [-z serial_number] file ...\n" |
Damien Miller | f0858de | 2014-04-20 13:01:30 +1000 | [diff] [blame] | 2326 | " ssh-keygen -L [-f input_keyfile]\n" |
| 2327 | " ssh-keygen -A\n" |
| 2328 | " ssh-keygen -k -f krl_file [-u] [-s ca_public] [-z version_number]\n" |
| 2329 | " file ...\n" |
| 2330 | " ssh-keygen -Q -f krl_file file ...\n"); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2331 | exit(1); |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 2332 | } |
| 2333 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2334 | /* |
| 2335 | * Main program for key management. |
| 2336 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 2337 | int |
Damien Miller | df8b7db | 2007-01-05 16:22:57 +1100 | [diff] [blame] | 2338 | main(int argc, char **argv) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 2339 | { |
deraadt@openbsd.org | 2ae4f33 | 2015-01-16 06:40:12 +0000 | [diff] [blame] | 2340 | char dotsshdir[PATH_MAX], comment[1024], *passphrase1, *passphrase2; |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2341 | char *rr_hostname = NULL, *ep, *fp, *ra; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2342 | struct sshkey *private, *public; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2343 | struct passwd *pw; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2344 | struct stat st; |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2345 | int r, opt, type, fd; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2346 | 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] | 2347 | FILE *f; |
Damien Miller | 02e754f | 2005-05-26 12:19:39 +1000 | [diff] [blame] | 2348 | const char *errstr; |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2349 | #ifdef WITH_OPENSSL |
| 2350 | /* Moduli generation/screening */ |
| 2351 | char out_file[PATH_MAX], *checkpoint = NULL; |
| 2352 | u_int32_t memory = 0, generator_wanted = 0; |
| 2353 | int do_gen_candidates = 0, do_screen_candidates = 0; |
| 2354 | unsigned long start_lineno = 0, lines_to_process = 0; |
| 2355 | BIGNUM *start = NULL; |
| 2356 | #endif |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 2357 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2358 | extern int optind; |
| 2359 | extern char *optarg; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 2360 | |
dtucker@openbsd.org | ffb1e7e | 2016-02-15 09:47:49 +0000 | [diff] [blame] | 2361 | ssh_malloc_init(); /* must be called before any mallocs */ |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 2362 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
| 2363 | sanitise_stdfd(); |
| 2364 | |
Darren Tucker | 9ac56e9 | 2007-01-14 10:19:59 +1100 | [diff] [blame] | 2365 | __progname = ssh_get_progname(argv[0]); |
Damien Miller | f9b625c | 2000-07-09 22:42:32 +1000 | [diff] [blame] | 2366 | |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 2367 | #ifdef WITH_OPENSSL |
Damien Miller | 4314c2b | 2010-09-10 11:12:09 +1000 | [diff] [blame] | 2368 | OpenSSL_add_all_algorithms(); |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 2369 | #endif |
Damien Miller | df8b7db | 2007-01-05 16:22:57 +1100 | [diff] [blame] | 2370 | log_init(argv[0], SYSLOG_LEVEL_INFO, SYSLOG_FACILITY_USER, 1); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2371 | |
Kevin Steves | 3a88191 | 2002-07-20 19:05:40 +0000 | [diff] [blame] | 2372 | seed_rng(); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2373 | |
djm@openbsd.org | a287c5a | 2017-02-10 03:36:40 +0000 | [diff] [blame] | 2374 | msetlocale(); |
| 2375 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 2376 | /* we need this for the home * directory. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2377 | pw = getpwuid(getuid()); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2378 | if (!pw) |
| 2379 | fatal("No user exists for uid %lu", (u_long)getuid()); |
| 2380 | if (gethostname(hostname, sizeof(hostname)) < 0) |
| 2381 | fatal("gethostname: %s", strerror(errno)); |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 2382 | |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 2383 | /* Remaining characters: Ydw */ |
| 2384 | while ((opt = getopt(argc, argv, "ABHLQUXceghiklopquvxy" |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 2385 | "C:D:E:F:G:I:J:K:M:N:O:P:R:S:T:V:W:Z:" |
| 2386 | "a:b:f:g:j:m:n:r:s:t:z:")) != -1) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2387 | switch (opt) { |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 2388 | case 'A': |
| 2389 | gen_all_hostkeys = 1; |
| 2390 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2391 | case 'b': |
markus@openbsd.org | 1b11ea7 | 2018-02-23 15:58:37 +0000 | [diff] [blame] | 2392 | bits = (u_int32_t)strtonum(optarg, 10, 32768, &errstr); |
Damien Miller | 02e754f | 2005-05-26 12:19:39 +1000 | [diff] [blame] | 2393 | if (errstr) |
| 2394 | fatal("Bits has bad value %s (%s)", |
| 2395 | optarg, errstr); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2396 | break; |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 2397 | case 'E': |
| 2398 | fingerprint_hash = ssh_digest_alg_by_name(optarg); |
| 2399 | if (fingerprint_hash == -1) |
| 2400 | fatal("Invalid hash algorithm \"%s\"", optarg); |
| 2401 | break; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2402 | case 'F': |
| 2403 | find_host = 1; |
| 2404 | rr_hostname = optarg; |
| 2405 | break; |
| 2406 | case 'H': |
| 2407 | hash_hosts = 1; |
| 2408 | break; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2409 | case 'I': |
| 2410 | cert_key_id = optarg; |
| 2411 | break; |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2412 | case 'R': |
| 2413 | delete_host = 1; |
| 2414 | rr_hostname = optarg; |
| 2415 | break; |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 2416 | case 'L': |
| 2417 | show_cert = 1; |
| 2418 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2419 | case 'l': |
| 2420 | print_fingerprint = 1; |
| 2421 | break; |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 2422 | case 'B': |
| 2423 | print_bubblebabble = 1; |
| 2424 | break; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 2425 | case 'm': |
| 2426 | if (strcasecmp(optarg, "RFC4716") == 0 || |
| 2427 | strcasecmp(optarg, "ssh2") == 0) { |
| 2428 | convert_format = FMT_RFC4716; |
| 2429 | break; |
| 2430 | } |
| 2431 | if (strcasecmp(optarg, "PKCS8") == 0) { |
| 2432 | convert_format = FMT_PKCS8; |
| 2433 | break; |
| 2434 | } |
| 2435 | if (strcasecmp(optarg, "PEM") == 0) { |
| 2436 | convert_format = FMT_PEM; |
djm@openbsd.org | ed7bd5d | 2018-08-08 01:16:01 +0000 | [diff] [blame] | 2437 | use_new_format = 0; |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 2438 | break; |
| 2439 | } |
| 2440 | fatal("Unsupported conversion format \"%s\"", optarg); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2441 | case 'n': |
| 2442 | cert_principals = optarg; |
| 2443 | break; |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 2444 | case 'o': |
djm@openbsd.org | ed7bd5d | 2018-08-08 01:16:01 +0000 | [diff] [blame] | 2445 | /* no-op; new format is already the default */ |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 2446 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2447 | case 'p': |
| 2448 | change_passphrase = 1; |
| 2449 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2450 | case 'c': |
| 2451 | change_comment = 1; |
| 2452 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2453 | case 'f': |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2454 | if (strlcpy(identity_file, optarg, |
| 2455 | sizeof(identity_file)) >= sizeof(identity_file)) |
Damien Miller | b089fb5 | 2005-05-26 12:16:18 +1000 | [diff] [blame] | 2456 | fatal("Identity filename too long"); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2457 | have_identity = 1; |
| 2458 | break; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 2459 | case 'g': |
| 2460 | print_generic = 1; |
| 2461 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2462 | case 'P': |
| 2463 | identity_passphrase = optarg; |
| 2464 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2465 | case 'N': |
| 2466 | identity_new_passphrase = optarg; |
| 2467 | break; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2468 | case 'Q': |
| 2469 | check_krl = 1; |
| 2470 | break; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2471 | case 'O': |
Damien Miller | 4e270b0 | 2010-04-16 15:56:21 +1000 | [diff] [blame] | 2472 | add_cert_option(optarg); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2473 | break; |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 2474 | case 'Z': |
| 2475 | new_format_cipher = optarg; |
| 2476 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2477 | case 'C': |
| 2478 | identity_comment = optarg; |
| 2479 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2480 | case 'q': |
| 2481 | quiet = 1; |
| 2482 | break; |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 2483 | case 'e': |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2484 | case 'x': |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 2485 | /* export key */ |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 2486 | convert_to = 1; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2487 | break; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2488 | case 'h': |
| 2489 | cert_key_type = SSH2_CERT_TYPE_HOST; |
Damien Miller | d0e4a8e | 2010-05-21 14:58:32 +1000 | [diff] [blame] | 2490 | certflags_flags = 0; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2491 | break; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2492 | case 'k': |
| 2493 | gen_krl = 1; |
| 2494 | break; |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 2495 | case 'i': |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2496 | case 'X': |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 2497 | /* import key */ |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 2498 | convert_from = 1; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2499 | break; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2500 | case 'y': |
| 2501 | print_public = 1; |
| 2502 | break; |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2503 | case 's': |
| 2504 | ca_key_path = optarg; |
| 2505 | break; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 2506 | case 't': |
| 2507 | key_type_name = optarg; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 2508 | break; |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 2509 | case 'D': |
Damien Miller | 7ea845e | 2010-02-12 09:21:02 +1100 | [diff] [blame] | 2510 | pkcs11provider = optarg; |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 2511 | break; |
djm@openbsd.org | a98339e | 2017-06-28 01:09:22 +0000 | [diff] [blame] | 2512 | case 'U': |
| 2513 | prefer_agent = 1; |
| 2514 | break; |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2515 | case 'u': |
| 2516 | update_krl = 1; |
| 2517 | break; |
Darren Tucker | 06930c7 | 2003-12-31 11:34:51 +1100 | [diff] [blame] | 2518 | case 'v': |
| 2519 | if (log_level == SYSLOG_LEVEL_INFO) |
| 2520 | log_level = SYSLOG_LEVEL_DEBUG1; |
| 2521 | else { |
Darren Tucker | fc95970 | 2004-07-17 16:12:08 +1000 | [diff] [blame] | 2522 | if (log_level >= SYSLOG_LEVEL_DEBUG1 && |
Darren Tucker | 06930c7 | 2003-12-31 11:34:51 +1100 | [diff] [blame] | 2523 | log_level < SYSLOG_LEVEL_DEBUG3) |
| 2524 | log_level++; |
| 2525 | } |
| 2526 | break; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 2527 | case 'r': |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2528 | rr_hostname = optarg; |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 2529 | break; |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2530 | case 'a': |
| 2531 | rounds = (int)strtonum(optarg, 1, INT_MAX, &errstr); |
| 2532 | if (errstr) |
| 2533 | fatal("Invalid number: %s (%s)", |
| 2534 | optarg, errstr); |
| 2535 | break; |
| 2536 | case 'V': |
| 2537 | parse_cert_times(optarg); |
| 2538 | break; |
| 2539 | case 'z': |
| 2540 | errno = 0; |
| 2541 | cert_serial = strtoull(optarg, &ep, 10); |
| 2542 | if (*optarg < '0' || *optarg > '9' || *ep != '\0' || |
| 2543 | (errno == ERANGE && cert_serial == ULLONG_MAX)) |
| 2544 | fatal("Invalid serial number \"%s\"", optarg); |
| 2545 | break; |
| 2546 | #ifdef WITH_OPENSSL |
| 2547 | /* Moduli generation/screening */ |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2548 | case 'G': |
| 2549 | do_gen_candidates = 1; |
Damien Miller | b089fb5 | 2005-05-26 12:16:18 +1000 | [diff] [blame] | 2550 | if (strlcpy(out_file, optarg, sizeof(out_file)) >= |
| 2551 | sizeof(out_file)) |
| 2552 | fatal("Output filename too long"); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2553 | break; |
Darren Tucker | 0bb2980 | 2016-09-12 11:07:00 +1000 | [diff] [blame] | 2554 | case 'J': |
| 2555 | lines_to_process = strtoul(optarg, NULL, 10); |
dtucker@openbsd.org | 7b63cf6 | 2016-09-12 03:29:16 +0000 | [diff] [blame] | 2556 | break; |
Darren Tucker | 0bb2980 | 2016-09-12 11:07:00 +1000 | [diff] [blame] | 2557 | case 'j': |
| 2558 | start_lineno = strtoul(optarg, NULL, 10); |
dtucker@openbsd.org | 7b63cf6 | 2016-09-12 03:29:16 +0000 | [diff] [blame] | 2559 | break; |
Damien Miller | 390d056 | 2011-10-18 16:05:19 +1100 | [diff] [blame] | 2560 | case 'K': |
deraadt@openbsd.org | 2ae4f33 | 2015-01-16 06:40:12 +0000 | [diff] [blame] | 2561 | if (strlen(optarg) >= PATH_MAX) |
Damien Miller | 390d056 | 2011-10-18 16:05:19 +1100 | [diff] [blame] | 2562 | fatal("Checkpoint filename too long"); |
| 2563 | checkpoint = xstrdup(optarg); |
| 2564 | break; |
Darren Tucker | d8c3cfb | 2016-09-12 13:30:50 +1000 | [diff] [blame] | 2565 | case 'M': |
| 2566 | memory = (u_int32_t)strtonum(optarg, 1, UINT_MAX, |
| 2567 | &errstr); |
| 2568 | if (errstr) |
| 2569 | fatal("Memory limit is %s: %s", errstr, optarg); |
| 2570 | break; |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2571 | case 'S': |
| 2572 | /* XXX - also compare length against bits */ |
| 2573 | if (BN_hex2bn(&start, optarg) == 0) |
| 2574 | fatal("Invalid start point."); |
| 2575 | break; |
Darren Tucker | af48d54 | 2016-09-12 13:52:17 +1000 | [diff] [blame] | 2576 | case 'T': |
| 2577 | do_screen_candidates = 1; |
| 2578 | if (strlcpy(out_file, optarg, sizeof(out_file)) >= |
| 2579 | sizeof(out_file)) |
| 2580 | fatal("Output filename too long"); |
| 2581 | break; |
Darren Tucker | 43cceff | 2016-09-12 13:55:37 +1000 | [diff] [blame] | 2582 | case 'W': |
| 2583 | generator_wanted = (u_int32_t)strtonum(optarg, 1, |
| 2584 | UINT_MAX, &errstr); |
Darren Tucker | 7050896 | 2016-09-12 13:57:28 +1000 | [diff] [blame] | 2585 | if (errstr != NULL) |
| 2586 | fatal("Desired generator invalid: %s (%s)", |
| 2587 | optarg, errstr); |
Darren Tucker | 43cceff | 2016-09-12 13:55:37 +1000 | [diff] [blame] | 2588 | break; |
Damien Miller | 72ef7c1 | 2015-01-15 02:21:31 +1100 | [diff] [blame] | 2589 | #endif /* WITH_OPENSSL */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2590 | case '?': |
| 2591 | default: |
| 2592 | usage(); |
| 2593 | } |
| 2594 | } |
Darren Tucker | 06930c7 | 2003-12-31 11:34:51 +1100 | [diff] [blame] | 2595 | |
| 2596 | /* reinit */ |
Damien Miller | df8b7db | 2007-01-05 16:22:57 +1100 | [diff] [blame] | 2597 | log_init(argv[0], log_level, SYSLOG_FACILITY_USER, 1); |
Darren Tucker | 06930c7 | 2003-12-31 11:34:51 +1100 | [diff] [blame] | 2598 | |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2599 | argv += optind; |
| 2600 | argc -= optind; |
| 2601 | |
| 2602 | if (ca_key_path != NULL) { |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2603 | if (argc < 1 && !gen_krl) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2604 | error("Too few arguments."); |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2605 | usage(); |
| 2606 | } |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2607 | } else if (argc > 0 && !gen_krl && !check_krl) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2608 | error("Too many arguments."); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2609 | usage(); |
| 2610 | } |
| 2611 | if (change_passphrase && change_comment) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2612 | error("Can only have one of -p and -c."); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2613 | usage(); |
| 2614 | } |
Darren Tucker | 0f7e910 | 2008-06-08 12:54:29 +1000 | [diff] [blame] | 2615 | if (print_fingerprint && (delete_host || hash_hosts)) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2616 | error("Cannot use -l with -H or -R."); |
Darren Tucker | 0f7e910 | 2008-06-08 12:54:29 +1000 | [diff] [blame] | 2617 | usage(); |
| 2618 | } |
Damien Miller | f3747bf | 2013-01-18 11:44:04 +1100 | [diff] [blame] | 2619 | if (gen_krl) { |
| 2620 | do_gen_krl(pw, update_krl, argc, argv); |
| 2621 | return (0); |
| 2622 | } |
| 2623 | if (check_krl) { |
| 2624 | do_check_krl(pw, argc, argv); |
| 2625 | return (0); |
| 2626 | } |
Damien Miller | 0a80ca1 | 2010-02-27 07:55:05 +1100 | [diff] [blame] | 2627 | if (ca_key_path != NULL) { |
| 2628 | if (cert_key_id == NULL) |
| 2629 | fatal("Must specify key id (-I) when certifying"); |
| 2630 | do_ca_sign(pw, argc, argv); |
| 2631 | } |
Damien Miller | f2b70ca | 2010-03-05 07:39:35 +1100 | [diff] [blame] | 2632 | if (show_cert) |
| 2633 | do_show_cert(pw); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2634 | if (delete_host || hash_hosts || find_host) |
| 2635 | do_known_hosts(pw, rr_hostname); |
Damien Miller | ec77c95 | 2013-01-09 15:58:00 +1100 | [diff] [blame] | 2636 | if (pkcs11provider != NULL) |
| 2637 | do_download(pw); |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 2638 | if (print_fingerprint || print_bubblebabble) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2639 | do_fingerprint(pw); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2640 | if (change_passphrase) |
| 2641 | do_change_passphrase(pw); |
Damien Miller | 4a10d2e | 2002-03-11 22:53:29 +1100 | [diff] [blame] | 2642 | if (change_comment) |
| 2643 | do_change_comment(pw); |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 2644 | #ifdef WITH_OPENSSL |
Damien Miller | 44b2504 | 2010-07-02 13:35:01 +1000 | [diff] [blame] | 2645 | if (convert_to) |
| 2646 | do_convert_to(pw); |
| 2647 | if (convert_from) |
| 2648 | do_convert_from(pw); |
Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 2649 | #endif |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2650 | if (print_public) |
| 2651 | do_print_public(pw); |
Damien Miller | 4b42d7f | 2005-03-01 21:48:35 +1100 | [diff] [blame] | 2652 | if (rr_hostname != NULL) { |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 2653 | unsigned int n = 0; |
| 2654 | |
| 2655 | if (have_identity) { |
| 2656 | n = do_print_resource_record(pw, |
| 2657 | identity_file, rr_hostname); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2658 | if (n == 0) |
| 2659 | fatal("%s: %s", identity_file, strerror(errno)); |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 2660 | exit(0); |
| 2661 | } else { |
| 2662 | |
| 2663 | n += do_print_resource_record(pw, |
| 2664 | _PATH_HOST_RSA_KEY_FILE, rr_hostname); |
| 2665 | n += do_print_resource_record(pw, |
| 2666 | _PATH_HOST_DSA_KEY_FILE, rr_hostname); |
Damien Miller | 3bde12a | 2012-06-20 21:51:11 +1000 | [diff] [blame] | 2667 | n += do_print_resource_record(pw, |
| 2668 | _PATH_HOST_ECDSA_KEY_FILE, rr_hostname); |
Damien Miller | 16cd392 | 2014-05-15 13:45:58 +1000 | [diff] [blame] | 2669 | n += do_print_resource_record(pw, |
| 2670 | _PATH_HOST_ED25519_KEY_FILE, rr_hostname); |
markus@openbsd.org | 1b11ea7 | 2018-02-23 15:58:37 +0000 | [diff] [blame] | 2671 | n += do_print_resource_record(pw, |
| 2672 | _PATH_HOST_XMSS_KEY_FILE, rr_hostname); |
Damien Miller | cb31482 | 2006-03-26 13:48:01 +1100 | [diff] [blame] | 2673 | if (n == 0) |
| 2674 | fatal("no keys found."); |
| 2675 | exit(0); |
| 2676 | } |
Damien Miller | 37876e9 | 2003-05-15 10:19:46 +1000 | [diff] [blame] | 2677 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2678 | |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2679 | #ifdef WITH_OPENSSL |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2680 | if (do_gen_candidates) { |
| 2681 | FILE *out = fopen(out_file, "w"); |
Damien Miller | 787b2ec | 2003-11-21 23:56:47 +1100 | [diff] [blame] | 2682 | |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2683 | if (out == NULL) { |
| 2684 | error("Couldn't open modulus candidate file \"%s\": %s", |
| 2685 | out_file, strerror(errno)); |
| 2686 | return (1); |
| 2687 | } |
Damien Miller | 3f54a9f | 2005-11-05 14:52:18 +1100 | [diff] [blame] | 2688 | if (bits == 0) |
| 2689 | bits = DEFAULT_BITS; |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2690 | if (gen_candidates(out, memory, bits, start) != 0) |
Damien Miller | 15d72a0 | 2005-11-05 15:07:33 +1100 | [diff] [blame] | 2691 | fatal("modulus candidate generation failed"); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2692 | |
| 2693 | return (0); |
| 2694 | } |
| 2695 | |
| 2696 | if (do_screen_candidates) { |
| 2697 | FILE *in; |
Damien Miller | 78d2271 | 2013-02-12 11:03:36 +1100 | [diff] [blame] | 2698 | FILE *out = fopen(out_file, "a"); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2699 | |
| 2700 | if (have_identity && strcmp(identity_file, "-") != 0) { |
| 2701 | if ((in = fopen(identity_file, "r")) == NULL) { |
| 2702 | fatal("Couldn't open modulus candidate " |
Damien Miller | a8e06ce | 2003-11-21 23:48:55 +1100 | [diff] [blame] | 2703 | "file \"%s\": %s", identity_file, |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2704 | strerror(errno)); |
| 2705 | } |
| 2706 | } else |
| 2707 | in = stdin; |
| 2708 | |
| 2709 | if (out == NULL) { |
| 2710 | fatal("Couldn't open moduli file \"%s\": %s", |
| 2711 | out_file, strerror(errno)); |
| 2712 | } |
Damien Miller | bcd00ab | 2013-12-07 10:41:55 +1100 | [diff] [blame] | 2713 | if (prime_test(in, out, rounds == 0 ? 100 : rounds, |
| 2714 | generator_wanted, checkpoint, |
Damien Miller | dfceafe | 2012-07-06 13:44:19 +1000 | [diff] [blame] | 2715 | start_lineno, lines_to_process) != 0) |
Damien Miller | 15d72a0 | 2005-11-05 15:07:33 +1100 | [diff] [blame] | 2716 | fatal("modulus screening failed"); |
Darren Tucker | f4220e6 | 2003-08-21 16:44:07 +1000 | [diff] [blame] | 2717 | return (0); |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2718 | } |
djm@openbsd.org | 1d9a2e2 | 2015-05-28 07:37:31 +0000 | [diff] [blame] | 2719 | #endif |
Darren Tucker | 019cefe | 2003-08-02 22:40:07 +1000 | [diff] [blame] | 2720 | |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 2721 | if (gen_all_hostkeys) { |
| 2722 | do_gen_all_hostkeys(pw); |
| 2723 | return (0); |
| 2724 | } |
| 2725 | |
Damien Miller | f14be5c | 2005-11-05 15:15:49 +1100 | [diff] [blame] | 2726 | if (key_type_name == NULL) |
djm@openbsd.org | d195879 | 2015-05-28 04:40:13 +0000 | [diff] [blame] | 2727 | key_type_name = DEFAULT_KEY_TYPE_NAME; |
Damien Miller | f14be5c | 2005-11-05 15:15:49 +1100 | [diff] [blame] | 2728 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2729 | type = sshkey_type_from_name(key_type_name); |
djm@openbsd.org | 7efb455 | 2015-01-18 13:22:28 +0000 | [diff] [blame] | 2730 | type_bits_valid(type, key_type_name, &bits); |
Damien Miller | 58f1baf | 2011-05-05 14:06:15 +1000 | [diff] [blame] | 2731 | |
Darren Tucker | 3af2ac5 | 2005-11-29 13:10:24 +1100 | [diff] [blame] | 2732 | if (!quiet) |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2733 | printf("Generating public/private %s key pair.\n", |
| 2734 | key_type_name); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2735 | if ((r = sshkey_generate(type, bits, &private)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 2736 | fatal("sshkey_generate failed"); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2737 | if ((r = sshkey_from_private(private, &public)) != 0) |
markus@openbsd.org | 7da5df1 | 2017-05-30 14:16:41 +0000 | [diff] [blame] | 2738 | fatal("sshkey_from_private failed: %s\n", ssh_err(r)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2739 | |
| 2740 | if (!have_identity) |
| 2741 | ask_filename(pw, "Enter file in which to save the key"); |
| 2742 | |
Damien Miller | 788f212 | 2005-11-05 15:14:59 +1100 | [diff] [blame] | 2743 | /* Create ~/.ssh directory if it doesn't already exist. */ |
Damien Miller | 50af79b | 2010-05-10 11:52:00 +1000 | [diff] [blame] | 2744 | snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", |
| 2745 | pw->pw_dir, _PATH_SSH_USER_DIR); |
| 2746 | if (strstr(identity_file, dotsshdir) != NULL) { |
| 2747 | if (stat(dotsshdir, &st) < 0) { |
| 2748 | if (errno != ENOENT) { |
| 2749 | error("Could not stat %s: %s", dotsshdir, |
| 2750 | strerror(errno)); |
| 2751 | } else if (mkdir(dotsshdir, 0700) < 0) { |
| 2752 | error("Could not create directory '%s': %s", |
| 2753 | dotsshdir, strerror(errno)); |
| 2754 | } else if (!quiet) |
| 2755 | printf("Created directory '%s'.\n", dotsshdir); |
| 2756 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2757 | } |
| 2758 | /* If the file already exists, ask the user to confirm. */ |
| 2759 | if (stat(identity_file, &st) >= 0) { |
| 2760 | char yesno[3]; |
| 2761 | printf("%s already exists.\n", identity_file); |
| 2762 | printf("Overwrite (y/n)? "); |
| 2763 | fflush(stdout); |
| 2764 | if (fgets(yesno, sizeof(yesno), stdin) == NULL) |
| 2765 | exit(1); |
| 2766 | if (yesno[0] != 'y' && yesno[0] != 'Y') |
| 2767 | exit(1); |
| 2768 | } |
| 2769 | /* Ask for a passphrase (twice). */ |
| 2770 | if (identity_passphrase) |
| 2771 | passphrase1 = xstrdup(identity_passphrase); |
| 2772 | else if (identity_new_passphrase) |
| 2773 | passphrase1 = xstrdup(identity_new_passphrase); |
| 2774 | else { |
| 2775 | passphrase_again: |
| 2776 | passphrase1 = |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 2777 | read_passphrase("Enter passphrase (empty for no " |
| 2778 | "passphrase): ", RP_ALLOW_STDIN); |
| 2779 | passphrase2 = read_passphrase("Enter same passphrase again: ", |
| 2780 | RP_ALLOW_STDIN); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2781 | if (strcmp(passphrase1, passphrase2) != 0) { |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 2782 | /* |
| 2783 | * The passphrases do not match. Clear them and |
| 2784 | * retry. |
| 2785 | */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 2786 | explicit_bzero(passphrase1, strlen(passphrase1)); |
| 2787 | explicit_bzero(passphrase2, strlen(passphrase2)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2788 | free(passphrase1); |
| 2789 | free(passphrase2); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2790 | printf("Passphrases do not match. Try again.\n"); |
| 2791 | goto passphrase_again; |
| 2792 | } |
| 2793 | /* Clear the other copy of the passphrase. */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 2794 | explicit_bzero(passphrase2, strlen(passphrase2)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2795 | free(passphrase2); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2796 | } |
| 2797 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2798 | if (identity_comment) { |
| 2799 | strlcpy(comment, identity_comment, sizeof(comment)); |
| 2800 | } else { |
Darren Tucker | e15fb09 | 2008-11-11 16:31:43 +1100 | [diff] [blame] | 2801 | /* Create default comment field for the passphrase. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2802 | snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname); |
| 2803 | } |
| 2804 | |
| 2805 | /* Save the key with the given passphrase and comment. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2806 | if ((r = sshkey_save_private(private, identity_file, passphrase1, |
| 2807 | comment, use_new_format, new_format_cipher, rounds)) != 0) { |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2808 | error("Saving key \"%s\" failed: %s", |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2809 | identity_file, ssh_err(r)); |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 2810 | explicit_bzero(passphrase1, strlen(passphrase1)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2811 | free(passphrase1); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2812 | exit(1); |
| 2813 | } |
| 2814 | /* Clear the passphrase. */ |
Damien Miller | a5103f4 | 2014-02-04 11:20:14 +1100 | [diff] [blame] | 2815 | explicit_bzero(passphrase1, strlen(passphrase1)); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2816 | free(passphrase1); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2817 | |
| 2818 | /* Clear the private key and the random number generator. */ |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2819 | sshkey_free(private); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2820 | |
| 2821 | if (!quiet) |
| 2822 | printf("Your identification has been saved in %s.\n", identity_file); |
| 2823 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2824 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2825 | if ((fd = open(identity_file, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) |
| 2826 | fatal("Unable to save public key to %s: %s", |
| 2827 | identity_file, strerror(errno)); |
| 2828 | if ((f = fdopen(fd, "w")) == NULL) |
| 2829 | fatal("fdopen %s failed: %s", identity_file, strerror(errno)); |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2830 | if ((r = sshkey_write(public, f)) != 0) |
djm@openbsd.org | 3038a19 | 2015-04-17 13:19:22 +0000 | [diff] [blame] | 2831 | error("write key failed: %s", ssh_err(r)); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2832 | fprintf(f, " %s\n", comment); |
djm@openbsd.org | b56ac06 | 2018-02-10 05:43:26 +0000 | [diff] [blame] | 2833 | if (ferror(f) || fclose(f) != 0) |
| 2834 | fatal("write public failed: %s", strerror(errno)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2835 | |
| 2836 | if (!quiet) { |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 2837 | fp = sshkey_fingerprint(public, fingerprint_hash, |
djm@openbsd.org | 56d1c83 | 2014-12-21 22:27:55 +0000 | [diff] [blame] | 2838 | SSH_FP_DEFAULT); |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 2839 | ra = sshkey_fingerprint(public, fingerprint_hash, |
Darren Tucker | 9c16ac9 | 2008-06-13 04:40:35 +1000 | [diff] [blame] | 2840 | SSH_FP_RANDOMART); |
djm@openbsd.org | 9ce86c9 | 2015-01-28 22:36:00 +0000 | [diff] [blame] | 2841 | if (fp == NULL || ra == NULL) |
| 2842 | fatal("sshkey_fingerprint failed"); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2843 | printf("Your public key has been saved in %s.\n", |
| 2844 | identity_file); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2845 | printf("The key fingerprint is:\n"); |
Ben Lindstrom | cfccef9 | 2001-03-13 04:57:58 +0000 | [diff] [blame] | 2846 | printf("%s %s\n", fp, comment); |
Darren Tucker | 9c16ac9 | 2008-06-13 04:40:35 +1000 | [diff] [blame] | 2847 | printf("The key's randomart image is:\n"); |
| 2848 | printf("%s\n", ra); |
Darren Tucker | a627d42 | 2013-06-02 07:31:17 +1000 | [diff] [blame] | 2849 | free(ra); |
| 2850 | free(fp); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2851 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 2852 | |
djm@openbsd.org | 1129dcf | 2015-01-15 09:40:00 +0000 | [diff] [blame] | 2853 | sshkey_free(public); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2854 | exit(0); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 2855 | } |