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Revision 4422 - (show annotations) (download) (as text)
Fri Apr 8 07:13:27 2011 UTC (13 years ago) by doda
Original Path: trunk/ttssh2/ttxssh/ssh.h
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hmac-sha1-96, hmac-md5-96 をサポート。
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
42 #define DEBUG_PRINT_TO_FILE(base, msg, len) { \
43 static int count = 0; \
44 debug_print(count + base, msg, len); \
45 count++; \
46 }
47
48 // from OpenSSH
49 extern const EVP_CIPHER *evp_aes_128_ctr(void);
50 extern const EVP_CIPHER *evp_des3_ctr(void);
51 extern const EVP_CIPHER *evp_bf_ctr(void);
52 extern const EVP_CIPHER *evp_cast5_ctr(void);
53
54 // yutaka
55 #define SSH2_USE
56
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 SSH_CIPHER_NONE, SSH_CIPHER_IDEA, SSH_CIPHER_DES, SSH_CIPHER_3DES,
85 SSH_CIPHER_TSS, SSH_CIPHER_RC4, SSH_CIPHER_BLOWFISH,
86 // for SSH2
87 SSH2_CIPHER_3DES_CBC, SSH2_CIPHER_AES128_CBC,
88 SSH2_CIPHER_AES192_CBC, SSH2_CIPHER_AES256_CBC,
89 SSH2_CIPHER_BLOWFISH_CBC, SSH2_CIPHER_AES128_CTR,
90 SSH2_CIPHER_AES192_CTR, SSH2_CIPHER_AES256_CTR,
91 SSH2_CIPHER_ARCFOUR, SSH2_CIPHER_ARCFOUR128, SSH2_CIPHER_ARCFOUR256,
92 SSH2_CIPHER_CAST128_CBC,
93 SSH2_CIPHER_3DES_CTR, SSH2_CIPHER_BLOWFISH_CTR, SSH2_CIPHER_CAST128_CTR,
94 SSH_CIPHER_MAX = SSH2_CIPHER_CAST128_CTR,
95 } SSHCipher;
96
97 typedef enum {
98 SSH_AUTH_NONE, SSH_AUTH_RHOSTS, SSH_AUTH_RSA, SSH_AUTH_PASSWORD,
99 SSH_AUTH_RHOSTS_RSA, SSH_AUTH_TIS, SSH_AUTH_KERBEROS,
100 SSH_AUTH_PAGEANT = 16,
101 SSH_AUTH_MAX = SSH_AUTH_PAGEANT,
102 } SSHAuthMethod;
103
104 typedef enum {
105 SSH_GENERIC_AUTHENTICATION, SSH_TIS_AUTHENTICATION
106 } SSHAuthMode;
107
108 #define SSH_PROTOFLAG_SCREEN_NUMBER 1
109 #define SSH_PROTOFLAG_HOST_IN_FWD_OPEN 2
110
111 enum channel_type {
112 TYPE_SHELL, TYPE_PORTFWD, TYPE_SCP, TYPE_SFTP, TYPE_AGENT,
113 };
114
115 // for SSH1
116 #define SSH_MAX_SEND_PACKET_SIZE 250000
117
118 // for SSH2
119 /* default window/packet sizes for tcp/x11-fwd-channel */
120 // changed CHAN_SES_WINDOW_DEFAULT from 32KB to 128KB. (2007.10.29 maya)
121 #define CHAN_SES_PACKET_DEFAULT (32*1024)
122 #define CHAN_SES_WINDOW_DEFAULT (4*CHAN_SES_PACKET_DEFAULT)
123 #define CHAN_TCP_PACKET_DEFAULT (32*1024)
124 #define CHAN_TCP_WINDOW_DEFAULT (4*CHAN_TCP_PACKET_DEFAULT)
125 #if 0 // unused
126 #define CHAN_X11_PACKET_DEFAULT (16*1024)
127 #define CHAN_X11_WINDOW_DEFAULT (4*CHAN_X11_PACKET_DEFAULT)
128 #endif
129
130
131 /* SSH2 constants */
132
133 /* SSH2 messages */
134 #define SSH2_MSG_DISCONNECT 1
135 #define SSH2_MSG_IGNORE 2
136 #define SSH2_MSG_UNIMPLEMENTED 3
137 #define SSH2_MSG_DEBUG 4
138 #define SSH2_MSG_SERVICE_REQUEST 5
139 #define SSH2_MSG_SERVICE_ACCEPT 6
140
141 #define SSH2_MSG_KEXINIT 20
142 #define SSH2_MSG_NEWKEYS 21
143
144 #define SSH2_MSG_KEXDH_INIT 30
145 #define SSH2_MSG_KEXDH_REPLY 31
146
147 #define SSH2_MSG_KEX_DH_GEX_GROUP 31
148 #define SSH2_MSG_KEX_DH_GEX_INIT 32
149 #define SSH2_MSG_KEX_DH_GEX_REPLY 33
150 #define SSH2_MSG_KEX_DH_GEX_REQUEST 34
151
152 #define SSH2_MSG_KEX_ECDH_INIT 30
153 #define SSH2_MSG_KEX_ECDH_REPLY 31
154
155 #define SSH2_MSG_USERAUTH_REQUEST 50
156 #define SSH2_MSG_USERAUTH_FAILURE 51
157 #define SSH2_MSG_USERAUTH_SUCCESS 52
158 #define SSH2_MSG_USERAUTH_BANNER 53
159
160 #define SSH2_MSG_USERAUTH_PK_OK 60
161 #define SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ 60
162 #define SSH2_MSG_USERAUTH_INFO_REQUEST 60
163 #define SSH2_MSG_USERAUTH_INFO_RESPONSE 61
164
165 #define SSH2_MSG_GLOBAL_REQUEST 80
166 #define SSH2_MSG_REQUEST_SUCCESS 81
167 #define SSH2_MSG_REQUEST_FAILURE 82
168 #define SSH2_MSG_CHANNEL_OPEN 90
169 #define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION 91
170 #define SSH2_MSG_CHANNEL_OPEN_FAILURE 92
171 #define SSH2_MSG_CHANNEL_WINDOW_ADJUST 93
172 #define SSH2_MSG_CHANNEL_DATA 94
173 #define SSH2_MSG_CHANNEL_EXTENDED_DATA 95
174 #define SSH2_MSG_CHANNEL_EOF 96
175 #define SSH2_MSG_CHANNEL_CLOSE 97
176 #define SSH2_MSG_CHANNEL_REQUEST 98
177 #define SSH2_MSG_CHANNEL_SUCCESS 99
178 #define SSH2_MSG_CHANNEL_FAILURE 100
179
180 /* SSH2 miscellaneous constants */
181 #define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT 1
182 #define SSH2_DISCONNECT_PROTOCOL_ERROR 2
183 #define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED 3
184 #define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED 4
185 #define SSH2_DISCONNECT_MAC_ERROR 5
186 #define SSH2_DISCONNECT_COMPRESSION_ERROR 6
187 #define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE 7
188 #define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED 8
189 #define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE 9
190 #define SSH2_DISCONNECT_CONNECTION_LOST 10
191 #define SSH2_DISCONNECT_BY_APPLICATION 11
192
193 #define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED 1
194 #define SSH2_OPEN_CONNECT_FAILED 2
195 #define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE 3
196 #define SSH2_OPEN_RESOURCE_SHORTAGE 4
197
198
199 // �N���C�A���g�����T�[�o������������
200 enum kex_init_proposals {
201 PROPOSAL_KEX_ALGS,
202 PROPOSAL_SERVER_HOST_KEY_ALGS,
203 PROPOSAL_ENC_ALGS_CTOS,
204 PROPOSAL_ENC_ALGS_STOC,
205 PROPOSAL_MAC_ALGS_CTOS,
206 PROPOSAL_MAC_ALGS_STOC,
207 PROPOSAL_COMP_ALGS_CTOS,
208 PROPOSAL_COMP_ALGS_STOC,
209 PROPOSAL_LANG_CTOS,
210 PROPOSAL_LANG_STOC,
211 PROPOSAL_MAX
212 };
213
214 #define KEX_DEFAULT_KEX ""
215 #define KEX_DEFAULT_PK_ALG ""
216 #define KEX_DEFAULT_ENCRYPT ""
217 #define KEX_DEFAULT_MAC ""
218 #define KEX_DEFAULT_COMP ""
219 #define KEX_DEFAULT_LANG ""
220
221 static char *myproposal[PROPOSAL_MAX] = {
222 KEX_DEFAULT_KEX,
223 KEX_DEFAULT_PK_ALG,
224 KEX_DEFAULT_ENCRYPT,
225 KEX_DEFAULT_ENCRYPT,
226 KEX_DEFAULT_MAC,
227 KEX_DEFAULT_MAC,
228 KEX_DEFAULT_COMP,
229 KEX_DEFAULT_COMP,
230 KEX_DEFAULT_LANG,
231 KEX_DEFAULT_LANG,
232 };
233
234
235 typedef enum {
236 KEY_NONE,
237 KEY_RSA1,
238 KEY_RSA,
239 KEY_DSA,
240 KEY_ECDSA256,
241 KEY_ECDSA384,
242 KEY_ECDSA521,
243 KEY_UNSPEC,
244 KEY_MAX = KEY_UNSPEC,
245 } ssh_keytype;
246 #define isECDSAkey(type) ((type) >= KEY_ECDSA256 && (type) <= KEY_ECDSA521)
247
248 typedef struct ssh2_host_key {
249 ssh_keytype type;
250 char *name;
251 } ssh2_host_key_t;
252
253 static ssh2_host_key_t ssh2_host_key[] = {
254 {KEY_RSA1, "ssh-rsa1"}, // for SSH1 only
255 {KEY_RSA, "ssh-rsa"},
256 {KEY_DSA, "ssh-dss"},
257 {KEY_ECDSA256, "ecdsa-sha2-nistp256"},
258 {KEY_ECDSA384, "ecdsa-sha2-nistp384"},
259 {KEY_ECDSA521, "ecdsa-sha2-nistp521"},
260 {KEY_UNSPEC, "ssh-unknown"},
261 {KEY_NONE, NULL},
262 };
263
264 /* Minimum modulus size (n) for RSA keys. */
265 #define SSH_RSA_MINIMUM_MODULUS_SIZE 768
266
267 #define SSH_KEYGEN_DEFAULT_BITS 2048
268 #define SSH_RSA_MINIMUM_KEY_SIZE 768
269 #define SSH_DSA_MINIMUM_KEY_SIZE 1024
270
271
272 typedef struct ssh2_cipher {
273 SSHCipher cipher;
274 char *name;
275 int block_size;
276 int key_len;
277 int discard_len;
278 const EVP_CIPHER *(*func)(void);
279 } ssh2_cipher_t;
280
281 static ssh2_cipher_t ssh2_ciphers[] = {
282 {SSH2_CIPHER_3DES_CBC, "3des-cbc", 8, 24, 0, EVP_des_ede3_cbc},
283 {SSH2_CIPHER_AES128_CBC, "aes128-cbc", 16, 16, 0, EVP_aes_128_cbc},
284 {SSH2_CIPHER_AES192_CBC, "aes192-cbc", 16, 24, 0, EVP_aes_192_cbc},
285 {SSH2_CIPHER_AES256_CBC, "aes256-cbc", 16, 32, 0, EVP_aes_256_cbc},
286 {SSH2_CIPHER_BLOWFISH_CBC, "blowfish-cbc", 8, 16, 0, EVP_bf_cbc},
287 {SSH2_CIPHER_AES128_CTR, "aes128-ctr", 16, 16, 0, evp_aes_128_ctr},
288 {SSH2_CIPHER_AES192_CTR, "aes192-ctr", 16, 24, 0, evp_aes_128_ctr},
289 {SSH2_CIPHER_AES256_CTR, "aes256-ctr", 16, 32, 0, evp_aes_128_ctr},
290 {SSH2_CIPHER_ARCFOUR, "arcfour", 8, 16, 0, EVP_rc4},
291 {SSH2_CIPHER_ARCFOUR128, "arcfour128", 8, 16, 1536, EVP_rc4},
292 {SSH2_CIPHER_ARCFOUR256, "arcfour256", 8, 32, 1536, EVP_rc4},
293 {SSH2_CIPHER_CAST128_CBC, "cast128-cbc", 8, 16, 0, EVP_cast5_cbc},
294 {SSH2_CIPHER_3DES_CTR, "3des-ctr", 8, 24, 0, evp_des3_ctr},
295 {SSH2_CIPHER_BLOWFISH_CTR, "blowfish-ctr", 8, 16, 0, evp_bf_ctr},
296 {SSH2_CIPHER_CAST128_CTR, "cast128-ctr", 8, 16, 0, evp_cast5_ctr},
297 {SSH_CIPHER_NONE, NULL, 0, 0, 0, NULL},
298 };
299
300
301 typedef enum {
302 KEX_DH_NONE, /* disabled line */
303 KEX_DH_GRP1_SHA1,
304 KEX_DH_GRP14_SHA1,
305 KEX_DH_GEX_SHA1,
306 KEX_DH_GEX_SHA256,
307 KEX_ECDH_SHA2_256,
308 KEX_ECDH_SHA2_384,
309 KEX_ECDH_SHA2_521,
310 KEX_DH_UNKNOWN,
311 KEX_DH_MAX = KEX_DH_UNKNOWN,
312 } kex_algorithm;
313
314 typedef struct ssh2_kex_algorithm {
315 kex_algorithm kextype;
316 char *name;
317 const EVP_MD *(*evp_md)(void);
318 } ssh2_kex_algorithm_t;
319
320 static ssh2_kex_algorithm_t ssh2_kex_algorithms[] = {
321 {KEX_DH_GRP1_SHA1, "diffie-hellman-group1-sha1", EVP_sha1},
322 {KEX_DH_GRP14_SHA1, "diffie-hellman-group14-sha1", EVP_sha1},
323 {KEX_DH_GEX_SHA1, "diffie-hellman-group-exchange-sha1", EVP_sha1},
324 {KEX_DH_GEX_SHA256, "diffie-hellman-group-exchange-sha256", EVP_sha256},
325 {KEX_ECDH_SHA2_256, "ecdh-sha2-nistp256", EVP_sha256},
326 {KEX_ECDH_SHA2_384, "ecdh-sha2-nistp384", EVP_sha384},
327 {KEX_ECDH_SHA2_521, "ecdh-sha2-nistp521", EVP_sha512},
328 {KEX_DH_NONE , NULL, NULL},
329 };
330
331
332 typedef enum {
333 HMAC_NONE, /* disabled line */
334 HMAC_SHA1,
335 HMAC_MD5,
336 HMAC_SHA1_96,
337 HMAC_MD5_96,
338 HMAC_UNKNOWN,
339 HMAC_MAX = HMAC_UNKNOWN,
340 } hmac_type;
341
342 typedef struct ssh2_mac {
343 hmac_type type;
344 char *name;
345 const EVP_MD *(*evp_md)(void);
346 int truncatebits;
347 } ssh2_mac_t;
348
349 static ssh2_mac_t ssh2_macs[] = {
350 {HMAC_SHA1, "hmac-sha1", EVP_sha1, 0},
351 {HMAC_MD5, "hmac-md5", EVP_md5, 0},
352 {HMAC_SHA1_96, "hmac-sha1-96", EVP_sha1, 96},
353 {HMAC_MD5_96, "hmac-md5-96", EVP_md5, 96},
354 {HMAC_NONE, NULL, NULL, 0},
355 };
356
357
358 typedef enum {
359 COMP_NONE, /* disabled line */
360 COMP_NOCOMP,
361 COMP_ZLIB,
362 COMP_DELAYED,
363 COMP_UNKNOWN,
364 COMP_MAX = COMP_UNKNOWN,
365 } compression_type;
366
367 typedef struct ssh2_comp {
368 compression_type type;
369 char *name;
370 } ssh2_comp_t;
371
372 static ssh2_comp_t ssh2_comps[] = {
373 {COMP_NOCOMP, "none"},
374 {COMP_ZLIB, "zlib"},
375 {COMP_DELAYED, "zlib@openssh.com"},
376 {COMP_NONE, NULL},
377 };
378
379
380 struct Enc {
381 u_char *key;
382 u_char *iv;
383 unsigned int key_len;
384 unsigned int block_size;
385 };
386
387 struct Mac {
388 char *name;
389 int enabled;
390 const EVP_MD *md;
391 int mac_len;
392 u_char *key;
393 int key_len;
394 };
395
396 struct Comp {
397 int type;
398 int enabled;
399 char *name;
400 };
401
402 typedef struct {
403 struct Enc enc;
404 struct Mac mac;
405 struct Comp comp;
406 } Newkeys;
407
408 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
409
410 enum kex_modes {
411 MODE_IN,
412 MODE_OUT,
413 MODE_MAX
414 };
415
416
417 // �z�X�g�L�[(SSH1, SSH2����)���f�[�^�\�� (2006.3.21 yutaka)
418 typedef struct Key {
419 // host key type
420 ssh_keytype type;
421 // SSH2 RSA
422 RSA *rsa;
423 // SSH2 DSA
424 DSA *dsa;
425 // SSH2 ECDSA
426 EC_KEY *ecdsa;
427 // SSH1 RSA
428 int bits;
429 unsigned char *exp;
430 unsigned char *mod;
431 } Key;
432
433 // fingerprint������
434 enum fp_rep {
435 SSH_FP_HEX,
436 SSH_FP_BUBBLEBABBLE,
437 SSH_FP_RANDOMART
438 };
439
440 enum scp_dir {
441 TOREMOTE, FROMREMOTE,
442 };
443
444 /* The packet handler returns TRUE to keep the handler in place,
445 FALSE to remove the handler. */
446 typedef BOOL (* SSHPacketHandler)(PTInstVar pvar);
447
448 typedef struct _SSHPacketHandlerItem SSHPacketHandlerItem;
449 struct _SSHPacketHandlerItem {
450 SSHPacketHandler handler;
451 /* Circular list of handlers for given message */
452 SSHPacketHandlerItem FAR * next_for_message;
453 SSHPacketHandlerItem FAR * last_for_message;
454 /* Circular list of handlers in set */
455 SSHPacketHandlerItem FAR * next_in_set;
456 int active_for_message;
457 };
458
459 typedef struct {
460 char FAR * hostname;
461
462 int server_protocol_flags;
463 char FAR * server_ID;
464
465 /* This buffer is used to hold the outgoing data, and encrypted in-place
466 here if necessary. */
467 unsigned char FAR * outbuf;
468 long outbuflen;
469 /* This buffer is used by the SSH protocol processing to store uncompressed
470 packet data for compression. User data is never streamed through here;
471 it is compressed directly from the user's buffer. */
472 unsigned char FAR * precompress_outbuf;
473 long precompress_outbuflen;
474 /* this is the length of the packet data, including the type header */
475 long outgoing_packet_len;
476
477 /* This buffer is used by the SSH protocol processing to store decompressed
478 packet data. User data is never streamed through here; it is decompressed
479 directly to the user's buffer. */
480 unsigned char FAR * postdecompress_inbuf;
481 long postdecompress_inbuflen;
482
483 unsigned char FAR * payload;
484 long payload_grabbed;
485 long payloadlen;
486 long payload_datastart;
487 long payload_datalen;
488
489 uint32 receiver_sequence_number;
490 uint32 sender_sequence_number;
491
492 z_stream compress_stream;
493 z_stream decompress_stream;
494 BOOL compressing;
495 BOOL decompressing;
496 int compression_level;
497
498 SSHPacketHandlerItem FAR * packet_handlers[256];
499 int status_flags;
500
501 int win_cols;
502 int win_rows;
503
504 unsigned short tcpport;
505 } SSHState;
506
507 #define STATUS_DONT_SEND_USER_NAME 0x01
508 #define STATUS_EXPECTING_COMPRESSION_RESPONSE 0x02
509 #define STATUS_DONT_SEND_CREDENTIALS 0x04
510 #define STATUS_HOST_OK 0x08
511 #define STATUS_INTERACTIVE 0x10
512 #define STATUS_IN_PARTIAL_ID_STRING 0x20
513
514 void SSH_init(PTInstVar pvar);
515 void SSH_open(PTInstVar pvar);
516 void SSH_notify_disconnecting(PTInstVar pvar, char FAR * reason);
517 /* SSH_handle_server_ID returns TRUE iff a valid ID string has been
518 received. If it returns FALSE, we need to keep looking for another
519 ID string. */
520 BOOL SSH_handle_server_ID(PTInstVar pvar, char FAR * ID, int ID_len);
521 /* SSH_handle_packet requires NO PAYLOAD on entry.
522 'len' is the size of the packet: payload + padding (+ CRC for SSHv1)
523 'padding' is the size of the padding.
524 'data' points to the start of the packet data (the length field)
525 */
526 void SSH_handle_packet(PTInstVar pvar, char FAR * data, int len, int padding);
527 void SSH_notify_win_size(PTInstVar pvar, int cols, int rows);
528 void SSH_notify_user_name(PTInstVar pvar);
529 void SSH_notify_cred(PTInstVar pvar);
530 void SSH_notify_host_OK(PTInstVar pvar);
531 void SSH_send(PTInstVar pvar, unsigned char const FAR * buf, unsigned int buflen);
532 /* SSH_extract_payload returns number of bytes extracted */
533 int SSH_extract_payload(PTInstVar pvar, unsigned char FAR * dest, int len);
534 void SSH_end(PTInstVar pvar);
535
536 void SSH_get_server_ID_info(PTInstVar pvar, char FAR * dest, int len);
537 void SSH_get_protocol_version_info(PTInstVar pvar, char FAR * dest, int len);
538 void SSH_get_compression_info(PTInstVar pvar, char FAR * dest, int len);
539
540 /* len must be <= SSH_MAX_SEND_PACKET_SIZE */
541 void SSH_channel_send(PTInstVar pvar, int channel_num,
542 uint32 remote_channel_num,
543 unsigned char FAR * buf, int len);
544 void SSH_fail_channel_open(PTInstVar pvar, uint32 remote_channel_num);
545 void SSH_confirm_channel_open(PTInstVar pvar, uint32 remote_channel_num, uint32 local_channel_num);
546 void SSH_channel_output_eof(PTInstVar pvar, uint32 remote_channel_num);
547 void SSH_channel_input_eof(PTInstVar pvar, uint32 remote_channel_num, uint32 local_channel_num);
548 void SSH_request_forwarding(PTInstVar pvar, char FAR * bind_address, int from_server_port,
549 char FAR * to_local_host, int to_local_port);
550 void SSH_request_X11_forwarding(PTInstVar pvar,
551 char FAR * auth_protocol, unsigned char FAR * auth_data, int auth_data_len, int screen_num);
552 void SSH_open_channel(PTInstVar pvar, uint32 local_channel_num,
553 char FAR * to_remote_host, int to_remote_port,
554 char FAR * originator, unsigned short originator_port);
555
556 int SSH_start_scp(PTInstVar pvar, char *sendfile, char *dstfile);
557 int SSH_start_scp_receive(PTInstVar pvar, char *filename);
558 int SSH_scp_transaction(PTInstVar pvar, char *sendfile, char *dstfile, enum scp_dir direction);
559 int SSH_sftp_transaction(PTInstVar pvar);
560
561 /* auxiliary SSH2 interfaces for pkt.c */
562 int SSH_get_min_packet_size(PTInstVar pvar);
563 /* data is guaranteed to be at least SSH_get_min_packet_size bytes long
564 at least 5 bytes must be decrypted */
565 void SSH_predecrpyt_packet(PTInstVar pvar, char FAR * data);
566 int SSH_get_clear_MAC_size(PTInstVar pvar);
567
568 #define SSH_is_any_payload(pvar) ((pvar)->ssh_state.payload_datalen > 0)
569 #define SSH_get_host_name(pvar) ((pvar)->ssh_state.hostname)
570 #define SSH_get_compression_level(pvar) ((pvar)->ssh_state.compressing ? (pvar)->ts_SSH_CompressionLevel : 0)
571
572 void SSH2_send_kexinit(PTInstVar pvar);
573 BOOL do_SSH2_userauth(PTInstVar pvar);
574 BOOL do_SSH2_authrequest(PTInstVar pvar);
575 void debug_print(int no, char *msg, int len);
576 int get_cipher_block_size(SSHCipher cipher);
577 int get_cipher_key_len(SSHCipher cipher);
578 char* get_kex_algorithm_name(kex_algorithm kextype);
579 const EVP_CIPHER* get_cipher_EVP_CIPHER(SSHCipher cipher);
580 const EVP_MD* get_kex_algorithm_EVP_MD(kex_algorithm kextype);
581 char* get_ssh2_mac_name(hmac_type type);
582 const EVP_MD* get_ssh2_mac_EVP_MD(hmac_type type);
583 int get_ssh2_mac_truncatebits(hmac_type type);
584 char* get_ssh2_comp_name(compression_type type);
585 char* get_ssh_keytype_name(ssh_keytype type);
586 int get_cipher_discard_len(SSHCipher cipher);
587 void ssh_heartbeat_lock_initialize(void);
588 void ssh_heartbeat_lock_finalize(void);
589 void ssh_heartbeat_lock(void);
590 void ssh_heartbeat_unlock(void);
591 void halt_ssh_heartbeat_thread(PTInstVar pvar);
592 void ssh2_channel_free(void);
593 BOOL handle_SSH2_userauth_inforeq(PTInstVar pvar);
594 BOOL handle_SSH2_userauth_passwd_changereq(PTInstVar pvar);
595 void SSH2_update_compression_myproposal(PTInstVar pvar);
596 void SSH2_update_cipher_myproposal(PTInstVar pvar);
597 void SSH2_update_kex_myproposal(PTInstVar pvar);
598 void SSH2_update_host_key_myproposal(PTInstVar pvar);
599 void SSH2_update_hmac_myproposal(PTInstVar pvar);
600 int SSH_notify_break_signal(PTInstVar pvar);
601
602 #endif
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