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Original Path: trunk/ttssh2/ttxssh/ssh.h
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1 /*
2 Copyright (c) 1998-2001, Robert O'Callahan
3 All rights reserved.
4
5 Redistribution and use in source and binary forms, with or without modification,
6 are permitted provided that the following conditions are met:
7
8 Redistributions of source code must retain the above copyright notice, this list of
9 conditions and the following disclaimer.
10
11 Redistributions in binary form must reproduce the above copyright notice, this list
12 of conditions and the following disclaimer in the documentation and/or other materials
13 provided with the distribution.
14
15 The name of Robert O'Callahan may not be used to endorse or promote products derived from
16 this software without specific prior written permission.
17
18 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
19 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 /*
30 This code is copyright (C) 1998-1999 Robert O'Callahan.
31 See LICENSE.TXT for the license.
32 */
33
34 #ifndef __SSH_H
35 #define __SSH_H
36
37 #include "zlib.h"
38 #include <openssl/evp.h>
39
40 #include "buffer.h"
41 #include "config.h"
42 #include <sys/types.h>
43 #include <sys/stat.h>
44
45 #define DEBUG_PRINT_TO_FILE(base, msg, len) { \
46 static int count = 0; \
47 debug_print(count + base, msg, len); \
48 count++; \
49 }
50
51 // from OpenSSH
52 extern const EVP_CIPHER *evp_aes_128_ctr(void);
53 extern const EVP_CIPHER *evp_des3_ctr(void);
54 extern const EVP_CIPHER *evp_bf_ctr(void);
55 extern const EVP_CIPHER *evp_cast5_ctr(void);
56 extern const EVP_CIPHER *evp_camellia_128_ctr(void);
57
58 /* Some of this code has been adapted from Ian Goldberg's Pilot SSH */
59
60 typedef enum {
61 SSH_MSG_NONE, SSH_MSG_DISCONNECT, SSH_SMSG_PUBLIC_KEY, //2
62 SSH_CMSG_SESSION_KEY, SSH_CMSG_USER, SSH_CMSG_AUTH_RHOSTS, // 5
63 SSH_CMSG_AUTH_RSA, SSH_SMSG_AUTH_RSA_CHALLENGE,
64 SSH_CMSG_AUTH_RSA_RESPONSE, SSH_CMSG_AUTH_PASSWORD,
65 SSH_CMSG_REQUEST_PTY, // 10
66 SSH_CMSG_WINDOW_SIZE, SSH_CMSG_EXEC_SHELL,
67 SSH_CMSG_EXEC_CMD, SSH_SMSG_SUCCESS, SSH_SMSG_FAILURE,
68 SSH_CMSG_STDIN_DATA, SSH_SMSG_STDOUT_DATA, SSH_SMSG_STDERR_DATA,
69 SSH_CMSG_EOF, SSH_SMSG_EXITSTATUS,
70 SSH_MSG_CHANNEL_OPEN_CONFIRMATION, SSH_MSG_CHANNEL_OPEN_FAILURE,
71 SSH_MSG_CHANNEL_DATA, SSH_MSG_CHANNEL_INPUT_EOF,
72 SSH_MSG_CHANNEL_OUTPUT_CLOSED, SSH_MSG_OBSOLETED0,
73 SSH_SMSG_X11_OPEN, SSH_CMSG_PORT_FORWARD_REQUEST, SSH_MSG_PORT_OPEN,
74 SSH_CMSG_AGENT_REQUEST_FORWARDING, SSH_SMSG_AGENT_OPEN,
75 SSH_MSG_IGNORE, SSH_CMSG_EXIT_CONFIRMATION,
76 SSH_CMSG_X11_REQUEST_FORWARDING, SSH_CMSG_AUTH_RHOSTS_RSA,
77 SSH_MSG_DEBUG, SSH_CMSG_REQUEST_COMPRESSION,
78 SSH_CMSG_MAX_PACKET_SIZE, SSH_CMSG_AUTH_TIS,
79 SSH_SMSG_AUTH_TIS_CHALLENGE, SSH_CMSG_AUTH_TIS_RESPONSE,
80 SSH_CMSG_AUTH_KERBEROS, SSH_SMSG_AUTH_KERBEROS_RESPONSE
81 } SSHMessage;
82
83 typedef enum {
84 // SSH1
85 SSH_CIPHER_NONE, SSH_CIPHER_IDEA, SSH_CIPHER_DES, SSH_CIPHER_3DES,
86 SSH_CIPHER_TSS, SSH_CIPHER_RC4, SSH_CIPHER_BLOWFISH,
87 // SSH2
88 SSH2_CIPHER_3DES_CBC, SSH2_CIPHER_AES128_CBC,
89 SSH2_CIPHER_AES192_CBC, SSH2_CIPHER_AES256_CBC,
90 SSH2_CIPHER_BLOWFISH_CBC, SSH2_CIPHER_AES128_CTR,
91 SSH2_CIPHER_AES192_CTR, SSH2_CIPHER_AES256_CTR,
92 SSH2_CIPHER_ARCFOUR, SSH2_CIPHER_ARCFOUR128, SSH2_CIPHER_ARCFOUR256,
93 SSH2_CIPHER_CAST128_CBC,
94 SSH2_CIPHER_3DES_CTR, SSH2_CIPHER_BLOWFISH_CTR, SSH2_CIPHER_CAST128_CTR,
95 SSH2_CIPHER_CAMELLIA128_CBC, SSH2_CIPHER_CAMELLIA192_CBC, SSH2_CIPHER_CAMELLIA256_CBC,
96 SSH2_CIPHER_CAMELLIA128_CTR, SSH2_CIPHER_CAMELLIA192_CTR, SSH2_CIPHER_CAMELLIA256_CTR,
97 SSH_CIPHER_MAX = SSH2_CIPHER_CAMELLIA256_CTR,
98 } SSHCipher;
99
100 typedef enum {
101 SSH_AUTH_NONE, SSH_AUTH_RHOSTS, SSH_AUTH_RSA, SSH_AUTH_PASSWORD,
102 SSH_AUTH_RHOSTS_RSA, SSH_AUTH_TIS, SSH_AUTH_KERBEROS,
103 SSH_AUTH_PAGEANT = 16,
104 SSH_AUTH_MAX = SSH_AUTH_PAGEANT,
105 } SSHAuthMethod;
106
107 typedef enum {
108 SSH_GENERIC_AUTHENTICATION, SSH_TIS_AUTHENTICATION
109 } SSHAuthMode;
110
111 #define SSH_PROTOFLAG_SCREEN_NUMBER 1
112 #define SSH_PROTOFLAG_HOST_IN_FWD_OPEN 2
113
114 enum channel_type {
115 TYPE_SHELL, TYPE_PORTFWD, TYPE_SCP, TYPE_SFTP, TYPE_AGENT, TYPE_SUBSYSTEM_GEN,
116 };
117
118 // for SSH1
119 #define SSH_MAX_SEND_PACKET_SIZE 250000
120
121 // for SSH2
122 /* default window/packet sizes for tcp/x11-fwd-channel */
123 // changed CHAN_SES_WINDOW_DEFAULT from 32KB to 128KB. (2007.10.29 maya)
124 #define CHAN_SES_PACKET_DEFAULT (32*1024)
125 #define CHAN_SES_WINDOW_DEFAULT (4*CHAN_SES_PACKET_DEFAULT)
126 #define CHAN_TCP_PACKET_DEFAULT (32*1024)
127 #define CHAN_TCP_WINDOW_DEFAULT (4*CHAN_TCP_PACKET_DEFAULT)
128 #if 0 // unused
129 #define CHAN_X11_PACKET_DEFAULT (16*1024)
130 #define CHAN_X11_WINDOW_DEFAULT (4*CHAN_X11_PACKET_DEFAULT)
131 #endif
132
133
134 /* SSH2 constants */
135
136 /* SSH2 messages */
137 #define SSH2_MSG_DISCONNECT 1
138 #define SSH2_MSG_IGNORE 2
139 #define SSH2_MSG_UNIMPLEMENTED 3
140 #define SSH2_MSG_DEBUG 4
141 #define SSH2_MSG_SERVICE_REQUEST 5
142 #define SSH2_MSG_SERVICE_ACCEPT 6
143
144 #define SSH2_MSG_KEXINIT 20
145 #define SSH2_MSG_NEWKEYS 21
146
147 #define SSH2_MSG_KEXDH_INIT 30
148 #define SSH2_MSG_KEXDH_REPLY 31
149
150 #define SSH2_MSG_KEX_DH_GEX_GROUP 31
151 #define SSH2_MSG_KEX_DH_GEX_INIT 32
152 #define SSH2_MSG_KEX_DH_GEX_REPLY 33
153 #define SSH2_MSG_KEX_DH_GEX_REQUEST 34
154
155 #define SSH2_MSG_KEX_ECDH_INIT 30
156 #define SSH2_MSG_KEX_ECDH_REPLY 31
157
158 #define SSH2_MSG_USERAUTH_REQUEST 50
159 #define SSH2_MSG_USERAUTH_FAILURE 51
160 #define SSH2_MSG_USERAUTH_SUCCESS 52
161 #define SSH2_MSG_USERAUTH_BANNER 53
162
163 #define SSH2_MSG_USERAUTH_PK_OK 60
164 #define SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ 60
165 #define SSH2_MSG_USERAUTH_INFO_REQUEST 60
166 #define SSH2_MSG_USERAUTH_INFO_RESPONSE 61
167
168 #define SSH2_MSG_GLOBAL_REQUEST 80
169 #define SSH2_MSG_REQUEST_SUCCESS 81
170 #define SSH2_MSG_REQUEST_FAILURE 82
171 #define SSH2_MSG_CHANNEL_OPEN 90
172 #define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION 91
173 #define SSH2_MSG_CHANNEL_OPEN_FAILURE 92
174 #define SSH2_MSG_CHANNEL_WINDOW_ADJUST 93
175 #define SSH2_MSG_CHANNEL_DATA 94
176 #define SSH2_MSG_CHANNEL_EXTENDED_DATA 95
177 #define SSH2_MSG_CHANNEL_EOF 96
178 #define SSH2_MSG_CHANNEL_CLOSE 97
179 #define SSH2_MSG_CHANNEL_REQUEST 98
180 #define SSH2_MSG_CHANNEL_SUCCESS 99
181 #define SSH2_MSG_CHANNEL_FAILURE 100
182
183 /* SSH2 miscellaneous constants */
184 #define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT 1
185 #define SSH2_DISCONNECT_PROTOCOL_ERROR 2
186 #define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED 3
187 #define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED 4
188 #define SSH2_DISCONNECT_MAC_ERROR 5
189 #define SSH2_DISCONNECT_COMPRESSION_ERROR 6
190 #define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE 7
191 #define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED 8
192 #define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE 9
193 #define SSH2_DISCONNECT_CONNECTION_LOST 10
194 #define SSH2_DISCONNECT_BY_APPLICATION 11
195 #define SSH2_DISCONNECT_TOO_MANY_CONNECTIONS 12
196 #define SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER 13
197 #define SSH2_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE 14
198 #define SSH2_DISCONNECT_ILLEGAL_USER_NAME 15
199
200 #define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED 1
201 #define SSH2_OPEN_CONNECT_FAILED 2
202 #define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE 3
203 #define SSH2_OPEN_RESOURCE_SHORTAGE 4
204
205 // Terminal Modes
206 #define SSH2_TTY_OP_END 0
207 #define SSH2_TTY_KEY_VINTR 1
208 #define SSH2_TTY_KEY_VQUIT 2
209 #define SSH2_TTY_KEY_VERASE 3
210 #define SSH2_TTY_KEY_VKILL 4
211 #define SSH2_TTY_KEY_VEOF 5
212 #define SSH2_TTY_KEY_VEOL 6
213 #define SSH2_TTY_KEY_VEOL2 7
214 #define SSH2_TTY_KEY_VSTART 8
215 #define SSH2_TTY_KEY_VSTOP 9
216 #define SSH2_TTY_KEY_VSUSP 10
217 #define SSH2_TTY_KEY_VDSUSP 11
218 #define SSH2_TTY_KEY_VREPRINT 12
219 #define SSH2_TTY_KEY_VWERASE 13
220 #define SSH2_TTY_KEY_VLNEXT 14
221 #define SSH2_TTY_KEY_VFLUSH 15
222 #define SSH2_TTY_KEY_VSWTCH 16
223 #define SSH2_TTY_KEY_VSTATUS 17
224 #define SSH2_TTY_KEY_VDISCARD 18
225 #define SSH2_TTY_OP_IGNPAR 30
226 #define SSH2_TTY_OP_PARMRK 31
227 #define SSH2_TTY_OP_INPCK 32
228 #define SSH2_TTY_OP_ISTRIP 33
229 #define SSH2_TTY_OP_INLCR 34
230 #define SSH2_TTY_OP_IGNCR 35
231 #define SSH2_TTY_OP_ICRNL 36
232 #define SSH2_TTY_OP_IUCLC 37
233 #define SSH2_TTY_OP_IXON 38
234 #define SSH2_TTY_OP_IXANY 39
235 #define SSH2_TTY_OP_IXOFF 40
236 #define SSH2_TTY_OP_IMAXBEL 41
237 #define SSH2_TTY_OP_ISIG 50
238 #define SSH2_TTY_OP_ICANON 51
239 #define SSH2_TTY_OP_XCASE 52
240 #define SSH2_TTY_OP_ECHO 53
241 #define SSH2_TTY_OP_ECHOE 54
242 #define SSH2_TTY_OP_ECHOK 55
243 #define SSH2_TTY_OP_ECHONL 56
244 #define SSH2_TTY_OP_NOFLSH 57
245 #define SSH2_TTY_OP_TOSTOP 58
246 #define SSH2_TTY_OP_IEXTEN 59
247 #define SSH2_TTY_OP_ECHOCTL 60
248 #define SSH2_TTY_OP_ECHOKE 61
249 #define SSH2_TTY_OP_PENDIN 62
250 #define SSH2_TTY_OP_OPOST 70
251 #define SSH2_TTY_OP_OLCUC 71
252 #define SSH2_TTY_OP_ONLCR 72
253 #define SSH2_TTY_OP_OCRNL 73
254 #define SSH2_TTY_OP_ONOCR 74
255 #define SSH2_TTY_OP_ONLRET 75
256 #define SSH2_TTY_OP_CS7 90
257 #define SSH2_TTY_OP_CS8 91
258 #define SSH2_TTY_OP_PARENB 92
259 #define SSH2_TTY_OP_PARODD 93
260 #define SSH2_TTY_OP_ISPEED 128
261 #define SSH2_TTY_OP_OSPEED 129
262
263
264 // �N���C�A���g�����T�[�o������������
265 enum kex_init_proposals {
266 PROPOSAL_KEX_ALGS,
267 PROPOSAL_SERVER_HOST_KEY_ALGS,
268 PROPOSAL_ENC_ALGS_CTOS,
269 PROPOSAL_ENC_ALGS_STOC,
270 PROPOSAL_MAC_ALGS_CTOS,
271 PROPOSAL_MAC_ALGS_STOC,
272 PROPOSAL_COMP_ALGS_CTOS,
273 PROPOSAL_COMP_ALGS_STOC,
274 PROPOSAL_LANG_CTOS,
275 PROPOSAL_LANG_STOC,
276 PROPOSAL_MAX
277 };
278
279 #define KEX_DEFAULT_KEX ""
280 #define KEX_DEFAULT_PK_ALG ""
281 #define KEX_DEFAULT_ENCRYPT ""
282 #define KEX_DEFAULT_MAC ""
283 #define KEX_DEFAULT_COMP ""
284 #define KEX_DEFAULT_LANG ""
285
286 static char *myproposal[PROPOSAL_MAX] = {
287 KEX_DEFAULT_KEX,
288 KEX_DEFAULT_PK_ALG,
289 KEX_DEFAULT_ENCRYPT,
290 KEX_DEFAULT_ENCRYPT,
291 KEX_DEFAULT_MAC,
292 KEX_DEFAULT_MAC,
293 KEX_DEFAULT_COMP,
294 KEX_DEFAULT_COMP,
295 KEX_DEFAULT_LANG,
296 KEX_DEFAULT_LANG,
297 };
298
299
300 typedef enum {
301 KEY_NONE,
302 KEY_RSA1,
303 KEY_RSA,
304 KEY_DSA,
305 KEY_ECDSA256,
306 KEY_ECDSA384,
307 KEY_ECDSA521,
308 KEY_ED25519,
309 KEY_UNSPEC,
310 KEY_MAX = KEY_UNSPEC,
311 } ssh_keytype;
312 #define isFixedLengthKey(type) ((type) >= KEY_DSA && (type) <= KEY_ED25519)
313
314 typedef struct ssh2_host_key {
315 ssh_keytype type;
316 char *name;
317 } ssh2_host_key_t;
318
319 static ssh2_host_key_t ssh2_host_key[] = {
320 {KEY_RSA1, "ssh-rsa1"}, // for SSH1 only
321 {KEY_RSA, "ssh-rsa"}, // RFC4253
322 {KEY_DSA, "ssh-dss"}, // RFC4253
323 {KEY_ECDSA256, "ecdsa-sha2-nistp256"}, // RFC5656
324 {KEY_ECDSA384, "ecdsa-sha2-nistp384"}, // RFC5656
325 {KEY_ECDSA521, "ecdsa-sha2-nistp521"}, // RFC5656
326 {KEY_ED25519, "ssh-ed25519"}, // draft-bjh21-ssh-ed25519-02
327 {KEY_UNSPEC, "ssh-unknown"},
328 {KEY_NONE, NULL},
329 };
330
331 /* Minimum modulus size (n) for RSA keys. */
332 #define SSH_RSA_MINIMUM_MODULUS_SIZE 768
333
334 #define SSH_KEYGEN_DEFAULT_BITS 2048
335 #define SSH_RSA_MINIMUM_KEY_SIZE 768
336 #define SSH_DSA_MINIMUM_KEY_SIZE 1024
337
338 #define SSH_KEYGEN_MINIMUM_ROUNDS 1
339 #define SSH_KEYGEN_MAXIMUM_ROUNDS INT_MAX
340
341
342 typedef struct ssh2_cipher {
343 SSHCipher cipher;
344 char *name;
345 int block_size;
346 int key_len;
347 int discard_len;
348 const EVP_CIPHER *(*func)(void);
349 } ssh2_cipher_t;
350
351 static ssh2_cipher_t ssh2_ciphers[] = {
352 {SSH2_CIPHER_3DES_CBC, "3des-cbc", 8, 24, 0, EVP_des_ede3_cbc}, // RFC4253
353 {SSH2_CIPHER_AES128_CBC, "aes128-cbc", 16, 16, 0, EVP_aes_128_cbc}, // RFC4253
354 {SSH2_CIPHER_AES192_CBC, "aes192-cbc", 16, 24, 0, EVP_aes_192_cbc}, // RFC4253
355 {SSH2_CIPHER_AES256_CBC, "aes256-cbc", 16, 32, 0, EVP_aes_256_cbc}, // RFC4253
356 {SSH2_CIPHER_BLOWFISH_CBC, "blowfish-cbc", 8, 16, 0, EVP_bf_cbc}, // RFC4253
357 {SSH2_CIPHER_AES128_CTR, "aes128-ctr", 16, 16, 0, evp_aes_128_ctr}, // RFC4344
358 {SSH2_CIPHER_AES192_CTR, "aes192-ctr", 16, 24, 0, evp_aes_128_ctr}, // RFC4344
359 {SSH2_CIPHER_AES256_CTR, "aes256-ctr", 16, 32, 0, evp_aes_128_ctr}, // RFC4344
360 {SSH2_CIPHER_ARCFOUR, "arcfour", 8, 16, 0, EVP_rc4}, // RFC4253
361 {SSH2_CIPHER_ARCFOUR128, "arcfour128", 8, 16, 1536, EVP_rc4}, // RFC4345
362 {SSH2_CIPHER_ARCFOUR256, "arcfour256", 8, 32, 1536, EVP_rc4}, // RFC4345
363 {SSH2_CIPHER_CAST128_CBC, "cast128-cbc", 8, 16, 0, EVP_cast5_cbc}, // RFC4253
364 {SSH2_CIPHER_3DES_CTR, "3des-ctr", 8, 24, 0, evp_des3_ctr}, // RFC4344
365 {SSH2_CIPHER_BLOWFISH_CTR, "blowfish-ctr", 8, 32, 0, evp_bf_ctr}, // RFC4344
366 {SSH2_CIPHER_CAST128_CTR, "cast128-ctr", 8, 16, 0, evp_cast5_ctr}, // RFC4344
367 {SSH2_CIPHER_CAMELLIA128_CBC, "camellia128-cbc", 16, 16, 0, EVP_camellia_128_cbc}, // draft-kanno-secsh-camellia-02
368 {SSH2_CIPHER_CAMELLIA192_CBC, "camellia192-cbc", 16, 24, 0, EVP_camellia_192_cbc}, // draft-kanno-secsh-camellia-02
369 {SSH2_CIPHER_CAMELLIA256_CBC, "camellia256-cbc", 16, 32, 0, EVP_camellia_256_cbc}, // draft-kanno-secsh-camellia-02
370 {SSH2_CIPHER_CAMELLIA128_CTR, "camellia128-ctr", 16, 16, 0, evp_camellia_128_ctr}, // draft-kanno-secsh-camellia-02
371 {SSH2_CIPHER_CAMELLIA192_CTR, "camellia192-ctr", 16, 24, 0, evp_camellia_128_ctr}, // draft-kanno-secsh-camellia-02
372 {SSH2_CIPHER_CAMELLIA256_CTR, "camellia256-ctr", 16, 32, 0, evp_camellia_128_ctr}, // draft-kanno-secsh-camellia-02
373 #ifdef WITH_CAMELLIA_PRIVATE
374 {SSH2_CIPHER_CAMELLIA128_CBC, "camellia128-cbc@openssh.org", 16, 16, 0, EVP_camellia_128_cbc},
375 {SSH2_CIPHER_CAMELLIA192_CBC, "camellia192-cbc@openssh.org", 16, 24, 0, EVP_camellia_192_cbc},
376 {SSH2_CIPHER_CAMELLIA256_CBC, "camellia256-cbc@openssh.org", 16, 32, 0, EVP_camellia_256_cbc},
377 {SSH2_CIPHER_CAMELLIA128_CTR, "camellia128-ctr@openssh.org", 16, 16, 0, evp_camellia_128_ctr},
378 {SSH2_CIPHER_CAMELLIA192_CTR, "camellia192-ctr@openssh.org", 16, 24, 0, evp_camellia_128_ctr},
379 {SSH2_CIPHER_CAMELLIA256_CTR, "camellia256-ctr@openssh.org", 16, 32, 0, evp_camellia_128_ctr},
380 #endif // WITH_CAMELLIA_PRIVATE
381 {SSH_CIPHER_NONE, NULL, 0, 0, 0, NULL},
382 };
383
384
385 typedef enum {
386 KEX_DH_NONE, /* disabled line */
387 KEX_DH_GRP1_SHA1,
388 KEX_DH_GRP14_SHA1,
389 KEX_DH_GEX_SHA1,
390 KEX_DH_GEX_SHA256,
391 KEX_ECDH_SHA2_256,
392 KEX_ECDH_SHA2_384,
393 KEX_ECDH_SHA2_521,
394 KEX_DH_GRP14_SHA256,
395 KEX_DH_GRP16_SHA512,
396 KEX_DH_GRP18_SHA512,
397 KEX_DH_UNKNOWN,
398 KEX_DH_MAX = KEX_DH_UNKNOWN,
399 } kex_algorithm;
400
401 typedef struct ssh2_kex_algorithm {
402 kex_algorithm kextype;
403 char *name;
404 const EVP_MD *(*evp_md)(void);
405 } ssh2_kex_algorithm_t;
406
407 static ssh2_kex_algorithm_t ssh2_kex_algorithms[] = {
408 {KEX_DH_GRP1_SHA1, "diffie-hellman-group1-sha1", EVP_sha1}, // RFC4253
409 {KEX_DH_GRP14_SHA1, "diffie-hellman-group14-sha1", EVP_sha1}, // RFC4253
410 {KEX_DH_GEX_SHA1, "diffie-hellman-group-exchange-sha1", EVP_sha1}, // RFC4419
411 {KEX_DH_GEX_SHA256, "diffie-hellman-group-exchange-sha256", EVP_sha256}, // RFC4419
412 {KEX_ECDH_SHA2_256, "ecdh-sha2-nistp256", EVP_sha256}, // RFC5656
413 {KEX_ECDH_SHA2_384, "ecdh-sha2-nistp384", EVP_sha384}, // RFC5656
414 {KEX_ECDH_SHA2_521, "ecdh-sha2-nistp521", EVP_sha512}, // RFC5656
415 {KEX_DH_GRP14_SHA256, "diffie-hellman-group14-sha256", EVP_sha256}, // draft-baushke-ssh-dh-group-sha2-04
416 {KEX_DH_GRP16_SHA512, "diffie-hellman-group16-sha512", EVP_sha512}, // draft-baushke-ssh-dh-group-sha2-04
417 {KEX_DH_GRP18_SHA512, "diffie-hellman-group18-sha512", EVP_sha512}, // draft-baushke-ssh-dh-group-sha2-04
418 {KEX_DH_NONE , NULL, NULL},
419 };
420
421
422 typedef enum {
423 HMAC_NONE, /* disabled line */
424 HMAC_SHA1,
425 HMAC_MD5,
426 HMAC_SHA1_96,
427 HMAC_MD5_96,
428 HMAC_RIPEMD160,
429 HMAC_SHA2_256,
430 HMAC_SHA2_256_96,
431 HMAC_SHA2_512,
432 HMAC_SHA2_512_96,
433 HMAC_UNKNOWN,
434 HMAC_MAX = HMAC_UNKNOWN,
435 } hmac_type;
436
437 typedef struct ssh2_mac {
438 hmac_type type;
439 char *name;
440 const EVP_MD *(*evp_md)(void);
441 int truncatebits;
442 } ssh2_mac_t;
443
444 static ssh2_mac_t ssh2_macs[] = {
445 {HMAC_SHA1, "hmac-sha1", EVP_sha1, 0}, // RFC4253
446 {HMAC_MD5, "hmac-md5", EVP_md5, 0}, // RFC4253
447 {HMAC_SHA1_96, "hmac-sha1-96", EVP_sha1, 96}, // RFC4253
448 {HMAC_MD5_96, "hmac-md5-96", EVP_md5, 96}, // RFC4253
449 {HMAC_RIPEMD160, "hmac-ripemd160@openssh.com", EVP_ripemd160, 0},
450 {HMAC_SHA2_256, "hmac-sha2-256", EVP_sha256, 0}, // RFC6668
451 // {HMAC_SHA2_256_96, "hmac-sha2-256-96", EVP_sha256, 96}, // draft-dbider-sha2-mac-for-ssh-05, deleted at 06
452 {HMAC_SHA2_512, "hmac-sha2-512", EVP_sha512, 0}, // RFC6668
453 // {HMAC_SHA2_512_96, "hmac-sha2-512-96", EVP_sha512, 96}, // draft-dbider-sha2-mac-for-ssh-05, deleted at 06
454 {HMAC_NONE, NULL, NULL, 0},
455 };
456
457
458 typedef enum {
459 COMP_NONE, /* disabled line */
460 COMP_NOCOMP,
461 COMP_ZLIB,
462 COMP_DELAYED,
463 COMP_UNKNOWN,
464 COMP_MAX = COMP_UNKNOWN,
465 } compression_type;
466
467 typedef struct ssh2_comp {
468 compression_type type;
469 char *name;
470 } ssh2_comp_t;
471
472 static ssh2_comp_t ssh2_comps[] = {
473 {COMP_NOCOMP, "none"}, // RFC4253
474 {COMP_ZLIB, "zlib"}, // RFC4253
475 {COMP_DELAYED, "zlib@openssh.com"},
476 {COMP_NONE, NULL},
477 };
478
479
480 struct Enc {
481 u_char *key;
482 u_char *iv;
483 unsigned int key_len;
484 unsigned int block_size;
485 };
486
487 struct Mac {
488 char *name;
489 int enabled;
490 const EVP_MD *md;
491 int mac_len;
492 u_char *key;
493 int key_len;
494 };
495
496 struct Comp {
497 int type;
498 int enabled;
499 char *name;
500 };
501
502 typedef struct {
503 struct Enc enc;
504 struct Mac mac;
505 struct Comp comp;
506 } Newkeys;
507
508 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
509
510 enum kex_modes {
511 MODE_IN,
512 MODE_OUT,
513 MODE_MAX
514 };
515
516
517 // �z�X�g�L�[(SSH1, SSH2����)���f�[�^�\�� (2006.3.21 yutaka)
518 typedef struct Key {
519 // host key type
520 ssh_keytype type;
521 // SSH2 RSA
522 RSA *rsa;
523 // SSH2 DSA
524 DSA *dsa;
525 // SSH2 ECDSA
526 EC_KEY *ecdsa;
527 // SSH1 RSA
528 int bits;
529 unsigned char *exp;
530 unsigned char *mod;
531 // SSH2 ED25519
532 unsigned char *ed25519_sk;
533 unsigned char *ed25519_pk;
534 int bcrypt_kdf;
535 } Key;
536
537 // fingerprint������
538 enum fp_rep {
539 SSH_FP_DEFAULT = 0,
540 SSH_FP_HEX,
541 SSH_FP_BASE64,
542 SSH_FP_BUBBLEBABBLE,
543 SSH_FP_RANDOMART
544 };
545 /*
546 enum fp_type {
547 SSH_FP_MD5,
548 SSH_FP_SHA1,
549 SSH_FP_SHA256
550 };
551 */
552 typedef enum {
553 SSH_DIGEST_MD5,
554 SSH_DIGEST_RIPEMD160,
555 SSH_DIGEST_SHA1,
556 SSH_DIGEST_SHA256,
557 SSH_DIGEST_SHA384,
558 SSH_DIGEST_SHA512,
559 SSH_DIGEST_MAX,
560 } digest_algorithm;
561
562 typedef struct ssh_digest {
563 digest_algorithm id;
564 char *name;
565 } ssh_digest_t;
566
567 /* NB. Indexed directly by algorithm number */
568 static ssh_digest_t ssh_digests[] = {
569 { SSH_DIGEST_MD5, "MD5" },
570 { SSH_DIGEST_RIPEMD160, "RIPEMD160" },
571 { SSH_DIGEST_SHA1, "SHA1" },
572 { SSH_DIGEST_SHA256, "SHA256" },
573 { SSH_DIGEST_SHA384, "SHA384" },
574 { SSH_DIGEST_SHA512, "SHA512" },
575 { SSH_DIGEST_MAX, NULL },
576 };
577
578 enum scp_dir {
579 TOREMOTE, FROMREMOTE,
580 };
581
582 /* The packet handler returns TRUE to keep the handler in place,
583 FALSE to remove the handler. */
584 typedef BOOL (* SSHPacketHandler)(PTInstVar pvar);
585
586 typedef struct _SSHPacketHandlerItem SSHPacketHandlerItem;
587 struct _SSHPacketHandlerItem {
588 SSHPacketHandler handler;
589 /* Circular list of handlers for given message */
590 SSHPacketHandlerItem FAR * next_for_message;
591 SSHPacketHandlerItem FAR * last_for_message;
592 /* Circular list of handlers in set */
593 SSHPacketHandlerItem FAR * next_in_set;
594 int active_for_message;
595 };
596
597 typedef struct {
598 char FAR * hostname;
599
600 int server_protocol_flags;
601 char FAR * server_ID;
602
603 /* This buffer is used to hold the outgoing data, and encrypted in-place
604 here if necessary. */
605 unsigned char FAR * outbuf;
606 long outbuflen;
607 /* This buffer is used by the SSH protocol processing to store uncompressed
608 packet data for compression. User data is never streamed through here;
609 it is compressed directly from the user's buffer. */
610 unsigned char FAR * precompress_outbuf;
611 long precompress_outbuflen;
612 /* this is the length of the packet data, including the type header */
613 long outgoing_packet_len;
614
615 /* This buffer is used by the SSH protocol processing to store decompressed
616 packet data. User data is never streamed through here; it is decompressed
617 directly to the user's buffer. */
618 unsigned char FAR * postdecompress_inbuf;
619 long postdecompress_inbuflen;
620
621 unsigned char FAR * payload;
622 long payload_grabbed;
623 long payloadlen;
624 long payload_datastart;
625 long payload_datalen;
626
627 uint32 receiver_sequence_number;
628 uint32 sender_sequence_number;
629
630 z_stream compress_stream;
631 z_stream decompress_stream;
632 BOOL compressing;
633 BOOL decompressing;
634 int compression_level;
635
636 SSHPacketHandlerItem FAR * packet_handlers[256];
637 int status_flags;
638
639 int win_cols;
640 int win_rows;
641
642 unsigned short tcpport;
643 } SSHState;
644
645 #define STATUS_DONT_SEND_USER_NAME 0x01
646 #define STATUS_EXPECTING_COMPRESSION_RESPONSE 0x02
647 #define STATUS_DONT_SEND_CREDENTIALS 0x04
648 #define STATUS_HOST_OK 0x08
649 #define STATUS_INTERACTIVE 0x10
650 #define STATUS_IN_PARTIAL_ID_STRING 0x20
651
652 void SSH_init(PTInstVar pvar);
653 void SSH_open(PTInstVar pvar);
654 void SSH_notify_disconnecting(PTInstVar pvar, char FAR * reason);
655 /* SSH_handle_server_ID returns TRUE iff a valid ID string has been
656 received. If it returns FALSE, we need to keep looking for another
657 ID string. */
658 BOOL SSH_handle_server_ID(PTInstVar pvar, char FAR * ID, int ID_len);
659 /* SSH_handle_packet requires NO PAYLOAD on entry.
660 'len' is the size of the packet: payload + padding (+ CRC for SSHv1)
661 'padding' is the size of the padding.
662 'data' points to the start of the packet data (the length field)
663 */
664 void SSH_handle_packet(PTInstVar pvar, char FAR * data, int len, int padding);
665 void SSH_notify_win_size(PTInstVar pvar, int cols, int rows);
666 void SSH_notify_user_name(PTInstVar pvar);
667 void SSH_notify_cred(PTInstVar pvar);
668 void SSH_notify_host_OK(PTInstVar pvar);
669 void SSH_send(PTInstVar pvar, unsigned char const FAR * buf, unsigned int buflen);
670 /* SSH_extract_payload returns number of bytes extracted */
671 int SSH_extract_payload(PTInstVar pvar, unsigned char FAR * dest, int len);
672 void SSH_end(PTInstVar pvar);
673
674 void SSH_get_server_ID_info(PTInstVar pvar, char FAR * dest, int len);
675 void SSH_get_protocol_version_info(PTInstVar pvar, char FAR * dest, int len);
676 void SSH_get_compression_info(PTInstVar pvar, char FAR * dest, int len);
677 void SSH_get_mac_info(PTInstVar pvar, char FAR * dest, int len);
678
679 /* len must be <= SSH_MAX_SEND_PACKET_SIZE */
680 void SSH_channel_send(PTInstVar pvar, int channel_num,
681 uint32 remote_channel_num,
682 unsigned char FAR * buf, int len, int retry);
683 void SSH_fail_channel_open(PTInstVar pvar, uint32 remote_channel_num);
684 void SSH_confirm_channel_open(PTInstVar pvar, uint32 remote_channel_num, uint32 local_channel_num);
685 void SSH_channel_output_eof(PTInstVar pvar, uint32 remote_channel_num);
686 void SSH_channel_input_eof(PTInstVar pvar, uint32 remote_channel_num, uint32 local_channel_num);
687 void SSH_request_forwarding(PTInstVar pvar, char FAR * bind_address, int from_server_port,
688 char FAR * to_local_host, int to_local_port);
689 void SSH_cancel_request_forwarding(PTInstVar pvar, char FAR * bind_address, int from_server_port, int reply);
690 void SSH_request_X11_forwarding(PTInstVar pvar,
691 char FAR * auth_protocol, unsigned char FAR * auth_data, int auth_data_len, int screen_num);
692 void SSH_open_channel(PTInstVar pvar, uint32 local_channel_num,
693 char FAR * to_remote_host, int to_remote_port,
694 char FAR * originator, unsigned short originator_port);
695
696 int SSH_start_scp(PTInstVar pvar, char *sendfile, char *dstfile);
697 int SSH_start_scp_receive(PTInstVar pvar, char *filename);
698 int SSH_scp_transaction(PTInstVar pvar, char *sendfile, char *dstfile, enum scp_dir direction);
699 int SSH_sftp_transaction(PTInstVar pvar);
700
701 /* auxiliary SSH2 interfaces for pkt.c */
702 int SSH_get_min_packet_size(PTInstVar pvar);
703 /* data is guaranteed to be at least SSH_get_min_packet_size bytes long
704 at least 5 bytes must be decrypted */
705 void SSH_predecrpyt_packet(PTInstVar pvar, char FAR * data);
706 int SSH_get_clear_MAC_size(PTInstVar pvar);
707
708 #define SSH_is_any_payload(pvar) ((pvar)->ssh_state.payload_datalen > 0)
709 #define SSH_get_host_name(pvar) ((pvar)->ssh_state.hostname)
710 #define SSH_get_compression_level(pvar) ((pvar)->ssh_state.compressing ? (pvar)->ts_SSH_CompressionLevel : 0)
711
712 void SSH2_send_kexinit(PTInstVar pvar);
713 BOOL do_SSH2_userauth(PTInstVar pvar);
714 BOOL do_SSH2_authrequest(PTInstVar pvar);
715 void debug_print(int no, char *msg, int len);
716 int get_cipher_block_size(SSHCipher cipher);
717 int get_cipher_key_len(SSHCipher cipher);
718 SSHCipher get_cipher_by_name(char *name);
719 char* get_kex_algorithm_name(kex_algorithm kextype);
720 const EVP_CIPHER* get_cipher_EVP_CIPHER(SSHCipher cipher);
721 const EVP_MD* get_kex_algorithm_EVP_MD(kex_algorithm kextype);
722 char* get_ssh2_mac_name(hmac_type type);
723 const EVP_MD* get_ssh2_mac_EVP_MD(hmac_type type);
724 int get_ssh2_mac_truncatebits(hmac_type type);
725 char* get_ssh2_comp_name(compression_type type);
726 char* get_ssh_keytype_name(ssh_keytype type);
727 char* get_digest_algorithm_name(digest_algorithm id);
728 int get_cipher_discard_len(SSHCipher cipher);
729 void ssh_heartbeat_lock_initialize(void);
730 void ssh_heartbeat_lock_finalize(void);
731 void ssh_heartbeat_lock(void);
732 void ssh_heartbeat_unlock(void);
733 void halt_ssh_heartbeat_thread(PTInstVar pvar);
734 void ssh2_channel_free(void);
735 BOOL handle_SSH2_userauth_msg60(PTInstVar pvar);
736 BOOL handle_SSH2_userauth_inforeq(PTInstVar pvar);
737 BOOL handle_SSH2_userauth_pkok(PTInstVar pvar);
738 BOOL handle_SSH2_userauth_passwd_changereq(PTInstVar pvar);
739 void SSH2_update_compression_myproposal(PTInstVar pvar);
740 void SSH2_update_cipher_myproposal(PTInstVar pvar);
741 void SSH2_update_kex_myproposal(PTInstVar pvar);
742 void SSH2_update_host_key_myproposal(PTInstVar pvar);
743 void SSH2_update_hmac_myproposal(PTInstVar pvar);
744 int SSH_notify_break_signal(PTInstVar pvar);
745
746 ///
747 enum scp_state {
748 SCP_INIT, SCP_TIMESTAMP, SCP_FILEINFO, SCP_DATA, SCP_CLOSING,
749 };
750
751 typedef struct bufchain {
752 buffer_t *msg;
753 struct bufchain *next;
754 } bufchain_t;
755
756 typedef struct PacketList {
757 char *buf;
758 unsigned int buflen;
759 struct PacketList *next;
760 } PacketList_t;
761
762 typedef struct scp {
763 enum scp_dir dir; // transfer direction
764 enum scp_state state; // SCP state
765 char localfile[MAX_PATH]; // local filename
766 char localfilefull[MAX_PATH]; // local filename fullpath
767 char remotefile[MAX_PATH]; // remote filename
768 FILE *localfp; // file pointer for local file
769 struct __stat64 filestat; // file status information
770 HWND progress_window;
771 HANDLE thread;
772 unsigned int thread_id;
773 PTInstVar pvar;
774 // for receiving file
775 long long filetotalsize;
776 long long filercvsize;
777 DWORD filemtime;
778 DWORD fileatime;
779 PacketList_t *pktlist_head;
780 PacketList_t *pktlist_tail;
781 } scp_t;
782
783 enum sftp_state {
784 SFTP_INIT, SFTP_CONNECTED, SFTP_REALPATH,
785 };
786
787 typedef struct sftp {
788 enum sftp_state state;
789 HWND console_window;
790 unsigned int transfer_buflen;
791 unsigned int num_requests;
792 unsigned int version;
793 unsigned int msg_id;
794 #define SFTP_EXT_POSIX_RENAME 0x00000001
795 #define SFTP_EXT_STATVFS 0x00000002
796 #define SFTP_EXT_FSTATVFS 0x00000004
797 #define SFTP_EXT_HARDLINK 0x00000008
798 unsigned int exts;
799 unsigned long long limit_kbps;
800 //struct bwlimit bwlimit_in, bwlimit_out;
801 char path[1024];
802 } sftp_t;
803
804 typedef struct channel {
805 int used;
806 int self_id;
807 int remote_id;
808 unsigned int local_window;
809 unsigned int local_window_max;
810 unsigned int local_consumed;
811 unsigned int local_maxpacket;
812 unsigned int remote_window;
813 unsigned int remote_maxpacket;
814 enum channel_type type;
815 int local_num;
816 bufchain_t *bufchain;
817 scp_t scp;
818 buffer_t *agent_msg;
819 int agent_request_len;
820 sftp_t sftp;
821 #define SSH_CHANNEL_STATE_CLOSE_SENT 0x00000001
822 unsigned int state;
823 } Channel_t;
824
825 unsigned char FAR *begin_send_packet(PTInstVar pvar, int type, int len);
826 void finish_send_packet_special(PTInstVar pvar, int skip_compress);
827 void SSH2_send_channel_data(PTInstVar pvar, Channel_t *c, unsigned char FAR * buf, unsigned int buflen, int retry);
828
829 #define finish_send_packet(pvar) finish_send_packet_special((pvar), 0)
830 #define get_payload_uint32(pvar, offset) get_uint32_MSBfirst((pvar)->ssh_state.payload + (offset))
831 #define get_uint32(buf) get_uint32_MSBfirst((buf))
832 #define set_uint32(buf, v) set_uint32_MSBfirst((buf), (v))
833 #define get_mpint_len(pvar, offset) ((get_ushort16_MSBfirst((pvar)->ssh_state.payload + (offset)) + 7) >> 3)
834 #define get_ushort16(buf) get_ushort16_MSBfirst((buf))
835 ///
836
837 /* Global request confirmation callbacks */
838 typedef void global_confirm_cb(PTInstVar pvar, int type, unsigned int seq, void *ctx);
839 void client_register_global_confirm(global_confirm_cb *cb, void *ctx);
840
841 /* Global request success/failure callbacks */
842 struct global_confirm {
843 global_confirm_cb *cb;
844 void *ctx;
845 int ref_count;
846 };
847
848 #endif

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