| blob | 605b608a4d533e87594ad826d4cc34c5a9984c35 |
1 #include <stdio.h>\r
2 #include <string.h>\r
3 \r
4 #include "puttymem.h"\r
5 #include "tree234.h"\r
6 #include "network.h"\r
7 #include "int64.h"\r
8 #include "misc.h"\r
9 \r
10 struct ssh_channel;\r
11 \r
12 extern void sshfwd_close(struct ssh_channel *c);\r
13 extern int sshfwd_write(struct ssh_channel *c, char *, int);\r
14 extern void sshfwd_unthrottle(struct ssh_channel *c, int bufsize);\r
15 \r
16 /*\r
17 * Useful thing.\r
18 */\r
19 #ifndef lenof\r
20 #define lenof(x) ( (sizeof((x))) / (sizeof(*(x))))\r
21 #endif\r
22 \r
23 #define SSH_CIPHER_IDEA 1\r
24 #define SSH_CIPHER_DES 2\r
25 #define SSH_CIPHER_3DES 3\r
26 #define SSH_CIPHER_BLOWFISH 6\r
27 \r
28 #ifdef MSCRYPTOAPI\r
29 #define APIEXTRA 8\r
30 #else\r
31 #define APIEXTRA 0\r
32 #endif\r
33 \r
34 #ifndef BIGNUM_INTERNAL\r
35 typedef void *Bignum;\r
36 #endif\r
37 \r
38 struct RSAKey {\r
39 int bits;\r
40 int bytes;\r
41 #ifdef MSCRYPTOAPI\r
42 unsigned long exponent;\r
43 unsigned char *modulus;\r
44 #else\r
45 Bignum modulus;\r
46 Bignum exponent;\r
47 Bignum private_exponent;\r
48 Bignum p;\r
49 Bignum q;\r
50 Bignum iqmp;\r
51 #endif\r
52 char *comment;\r
53 };\r
54 \r
55 struct dss_key {\r
56 Bignum p, q, g, y, x;\r
57 };\r
58 \r
59 int makekey(unsigned char *data, int len, struct RSAKey *result,\r
60 unsigned char **keystr, int order);\r
61 int makeprivate(unsigned char *data, int len, struct RSAKey *result);\r
62 int rsaencrypt(unsigned char *data, int length, struct RSAKey *key);\r
63 Bignum rsadecrypt(Bignum input, struct RSAKey *key);\r
64 void rsasign(unsigned char *data, int length, struct RSAKey *key);\r
65 void rsasanitise(struct RSAKey *key);\r
66 int rsastr_len(struct RSAKey *key);\r
67 void rsastr_fmt(char *str, struct RSAKey *key);\r
68 void rsa_fingerprint(char *str, int len, struct RSAKey *key);\r
69 int rsa_verify(struct RSAKey *key);\r
70 unsigned char *rsa_public_blob(struct RSAKey *key, int *len);\r
71 int rsa_public_blob_len(void *data, int maxlen);\r
72 void freersakey(struct RSAKey *key);\r
73 \r
74 #ifndef PUTTY_UINT32_DEFINED\r
75 /* This makes assumptions about the int type. */\r
76 typedef unsigned int uint32;\r
77 #define PUTTY_UINT32_DEFINED\r
78 #endif\r
79 typedef uint32 word32;\r
80 \r
81 unsigned long crc32_compute(const void *s, size_t len);\r
82 unsigned long crc32_update(unsigned long crc_input, const void *s, size_t len);\r
83 \r
84 /* SSH CRC compensation attack detector */\r
85 void *crcda_make_context(void);\r
86 void crcda_free_context(void *handle);\r
87 int detect_attack(void *handle, unsigned char *buf, uint32 len,\r
88 unsigned char *IV);\r
89 \r
90 /*\r
91 * SSH2 RSA key exchange functions\r
92 */\r
93 struct ssh_hash;\r
94 void *ssh_rsakex_newkey(char *data, int len);\r
95 void ssh_rsakex_freekey(void *key);\r
96 int ssh_rsakex_klen(void *key);\r
97 void ssh_rsakex_encrypt(const struct ssh_hash *h, unsigned char *in, int inlen,\r
98 unsigned char *out, int outlen,\r
99 void *key);\r
100 \r
101 typedef struct {\r
102 uint32 h[4];\r
103 } MD5_Core_State;\r
104 \r
105 struct MD5Context {\r
106 #ifdef MSCRYPTOAPI\r
107 unsigned long hHash;\r
108 #else\r
109 MD5_Core_State core;\r
110 unsigned char block[64];\r
111 int blkused;\r
112 uint32 lenhi, lenlo;\r
113 #endif\r
114 };\r
115 \r
116 void MD5Init(struct MD5Context *context);\r
117 void MD5Update(struct MD5Context *context, unsigned char const *buf,\r
118 unsigned len);\r
119 void MD5Final(unsigned char digest[16], struct MD5Context *context);\r
120 void MD5Simple(void const *p, unsigned len, unsigned char output[16]);\r
121 \r
122 void *hmacmd5_make_context(void);\r
123 void hmacmd5_free_context(void *handle);\r
124 void hmacmd5_key(void *handle, void const *key, int len);\r
125 void hmacmd5_do_hmac(void *handle, unsigned char const *blk, int len,\r
126 unsigned char *hmac);\r
127 \r
128 typedef struct {\r
129 uint32 h[5];\r
130 unsigned char block[64];\r
131 int blkused;\r
132 uint32 lenhi, lenlo;\r
133 } SHA_State;\r
134 void SHA_Init(SHA_State * s);\r
135 void SHA_Bytes(SHA_State * s, void *p, int len);\r
136 void SHA_Final(SHA_State * s, unsigned char *output);\r
137 void SHA_Simple(void *p, int len, unsigned char *output);\r
138 \r
139 void hmac_sha1_simple(void *key, int keylen, void *data, int datalen,\r
140 unsigned char *output);\r
141 typedef struct {\r
142 uint32 h[8];\r
143 unsigned char block[64];\r
144 int blkused;\r
145 uint32 lenhi, lenlo;\r
146 } SHA256_State;\r
147 void SHA256_Init(SHA256_State * s);\r
148 void SHA256_Bytes(SHA256_State * s, const void *p, int len);\r
149 void SHA256_Final(SHA256_State * s, unsigned char *output);\r
150 void SHA256_Simple(const void *p, int len, unsigned char *output);\r
151 \r
152 typedef struct {\r
153 uint64 h[8];\r
154 unsigned char block[128];\r
155 int blkused;\r
156 uint32 len[4];\r
157 } SHA512_State;\r
158 void SHA512_Init(SHA512_State * s);\r
159 void SHA512_Bytes(SHA512_State * s, const void *p, int len);\r
160 void SHA512_Final(SHA512_State * s, unsigned char *output);\r
161 void SHA512_Simple(const void *p, int len, unsigned char *output);\r
162 \r
163 struct ssh_cipher {\r
164 void *(*make_context)(void);\r
165 void (*free_context)(void *);\r
166 void (*sesskey) (void *, unsigned char *key); /* for SSH-1 */\r
167 void (*encrypt) (void *, unsigned char *blk, int len);\r
168 void (*decrypt) (void *, unsigned char *blk, int len);\r
169 int blksize;\r
170 char *text_name;\r
171 };\r
172 \r
173 struct ssh2_cipher {\r
174 void *(*make_context)(void);\r
175 void (*free_context)(void *);\r
176 void (*setiv) (void *, unsigned char *key); /* for SSH-2 */\r
177 void (*setkey) (void *, unsigned char *key);/* for SSH-2 */\r
178 void (*encrypt) (void *, unsigned char *blk, int len);\r
179 void (*decrypt) (void *, unsigned char *blk, int len);\r
180 char *name;\r
181 int blksize;\r
182 int keylen;\r
183 unsigned int flags;\r
184 #define SSH_CIPHER_IS_CBC 1\r
185 char *text_name;\r
186 };\r
187 \r
188 struct ssh2_ciphers {\r
189 int nciphers;\r
190 const struct ssh2_cipher *const *list;\r
191 };\r
192 \r
193 struct ssh_mac {\r
194 void *(*make_context)(void);\r
195 void (*free_context)(void *);\r
196 void (*setkey) (void *, unsigned char *key);\r
197 /* whole-packet operations */\r
198 void (*generate) (void *, unsigned char *blk, int len, unsigned long seq);\r
199 int (*verify) (void *, unsigned char *blk, int len, unsigned long seq);\r
200 /* partial-packet operations */\r
201 void (*start) (void *);\r
202 void (*bytes) (void *, unsigned char const *, int);\r
203 void (*genresult) (void *, unsigned char *);\r
204 int (*verresult) (void *, unsigned char const *);\r
205 char *name;\r
206 int len;\r
207 char *text_name;\r
208 };\r
209 \r
210 struct ssh_hash {\r
211 void *(*init)(void); /* also allocates context */\r
212 void (*bytes)(void *, void *, int);\r
213 void (*final)(void *, unsigned char *); /* also frees context */\r
214 int hlen; /* output length in bytes */\r
215 char *text_name;\r
216 }; \r
217 \r
218 struct ssh_kex {\r
219 char *name, *groupname;\r
220 enum { KEXTYPE_DH, KEXTYPE_RSA } main_type;\r
221 /* For DH */\r
222 const unsigned char *pdata, *gdata; /* NULL means group exchange */\r
223 int plen, glen;\r
224 const struct ssh_hash *hash;\r
225 };\r
226 \r
227 struct ssh_kexes {\r
228 int nkexes;\r
229 const struct ssh_kex *const *list;\r
230 };\r
231 \r
232 struct ssh_signkey {\r
233 void *(*newkey) (char *data, int len);\r
234 void (*freekey) (void *key);\r
235 char *(*fmtkey) (void *key);\r
236 unsigned char *(*public_blob) (void *key, int *len);\r
237 unsigned char *(*private_blob) (void *key, int *len);\r
238 void *(*createkey) (unsigned char *pub_blob, int pub_len,\r
239 unsigned char *priv_blob, int priv_len);\r
240 void *(*openssh_createkey) (unsigned char **blob, int *len);\r
241 int (*openssh_fmtkey) (void *key, unsigned char *blob, int len);\r
242 int (*pubkey_bits) (void *blob, int len);\r
243 char *(*fingerprint) (void *key);\r
244 int (*verifysig) (void *key, char *sig, int siglen,\r
245 char *data, int datalen);\r
246 unsigned char *(*sign) (void *key, char *data, int datalen,\r
247 int *siglen);\r
248 char *name;\r
249 char *keytype; /* for host key cache */\r
250 };\r
251 \r
252 struct ssh_compress {\r
253 char *name;\r
254 /* For zlib@openssh.com: if non-NULL, this name will be considered once\r
255 * userauth has completed successfully. */\r
256 char *delayed_name;\r
257 void *(*compress_init) (void);\r
258 void (*compress_cleanup) (void *);\r
259 int (*compress) (void *, unsigned char *block, int len,\r
260 unsigned char **outblock, int *outlen);\r
261 void *(*decompress_init) (void);\r
262 void (*decompress_cleanup) (void *);\r
263 int (*decompress) (void *, unsigned char *block, int len,\r
264 unsigned char **outblock, int *outlen);\r
265 int (*disable_compression) (void *);\r
266 char *text_name;\r
267 };\r
268 \r
269 struct ssh2_userkey {\r
270 const struct ssh_signkey *alg; /* the key algorithm */\r
271 void *data; /* the key data */\r
272 char *comment; /* the key comment */\r
273 };\r
274 \r
275 /* The maximum length of any hash algorithm used in kex. (bytes) */\r
276 #define SSH2_KEX_MAX_HASH_LEN (32) /* SHA-256 */\r
277 \r
278 extern const struct ssh_cipher ssh_3des;\r
279 extern const struct ssh_cipher ssh_des;\r
280 extern const struct ssh_cipher ssh_blowfish_ssh1;\r
281 extern const struct ssh2_ciphers ssh2_3des;\r
282 extern const struct ssh2_ciphers ssh2_des;\r
283 extern const struct ssh2_ciphers ssh2_aes;\r
284 extern const struct ssh2_ciphers ssh2_blowfish;\r
285 extern const struct ssh2_ciphers ssh2_arcfour;\r
286 extern const struct ssh_hash ssh_sha1;\r
287 extern const struct ssh_hash ssh_sha256;\r
288 extern const struct ssh_kexes ssh_diffiehellman_group1;\r
289 extern const struct ssh_kexes ssh_diffiehellman_group14;\r
290 extern const struct ssh_kexes ssh_diffiehellman_gex;\r
291 extern const struct ssh_kexes ssh_rsa_kex;\r
292 extern const struct ssh_signkey ssh_dss;\r
293 extern const struct ssh_signkey ssh_rsa;\r
294 extern const struct ssh_mac ssh_hmac_md5;\r
295 extern const struct ssh_mac ssh_hmac_sha1;\r
296 extern const struct ssh_mac ssh_hmac_sha1_buggy;\r
297 extern const struct ssh_mac ssh_hmac_sha1_96;\r
298 extern const struct ssh_mac ssh_hmac_sha1_96_buggy;\r
299 \r
300 void *aes_make_context(void);\r
301 void aes_free_context(void *handle);\r
302 void aes128_key(void *handle, unsigned char *key);\r
303 void aes192_key(void *handle, unsigned char *key);\r
304 void aes256_key(void *handle, unsigned char *key);\r
305 void aes_iv(void *handle, unsigned char *iv);\r
306 void aes_ssh2_encrypt_blk(void *handle, unsigned char *blk, int len);\r
307 void aes_ssh2_decrypt_blk(void *handle, unsigned char *blk, int len);\r
308 \r
309 /*\r
310 * PuTTY version number formatted as an SSH version string. \r
311 */\r
312 extern char sshver[];\r
313 \r
314 /*\r
315 * Gross hack: pscp will try to start SFTP but fall back to scp1 if\r
316 * that fails. This variable is the means by which scp.c can reach\r
317 * into the SSH code and find out which one it got.\r
318 */\r
319 extern int ssh_fallback_cmd(void *handle);\r
320 \r
321 #ifndef MSCRYPTOAPI\r
322 void SHATransform(word32 * digest, word32 * data);\r
323 #endif\r
324 \r
325 int random_byte(void);\r
326 void random_add_noise(void *noise, int length);\r
327 void random_add_heavynoise(void *noise, int length);\r
328 \r
329 void logevent(void *, const char *);\r
330 \r
331 /* Allocate and register a new channel for port forwarding */\r
332 void *new_sock_channel(void *handle, Socket s);\r
333 void ssh_send_port_open(void *channel, char *hostname, int port, char *org);\r
334 \r
335 /* Exports from portfwd.c */\r
336 extern const char *pfd_newconnect(Socket * s, char *hostname, int port,\r
337 void *c, const Config *cfg,\r
338 int addressfamily);\r
339 /* desthost == NULL indicates dynamic (SOCKS) port forwarding */\r
340 extern const char *pfd_addforward(char *desthost, int destport, char *srcaddr,\r
341 int port, void *backhandle,\r
342 const Config *cfg, void **sockdata,\r
343 int address_family);\r
344 extern void pfd_close(Socket s);\r
345 extern void pfd_terminate(void *sockdata);\r
346 extern int pfd_send(Socket s, char *data, int len);\r
347 extern void pfd_confirm(Socket s);\r
348 extern void pfd_unthrottle(Socket s);\r
349 extern void pfd_override_throttle(Socket s, int enable);\r
350 \r
351 /* Exports from x11fwd.c */\r
352 enum {\r
353 X11_TRANS_IPV4 = 0, X11_TRANS_IPV6 = 6, X11_TRANS_UNIX = 256\r
354 };\r
355 struct X11Display {\r
356 /* Broken-down components of the display name itself */\r
357 int unixdomain;\r
358 char *hostname;\r
359 int displaynum;\r
360 int screennum;\r
361 /* OSX sometimes replaces all the above with a full Unix-socket pathname */\r
362 char *unixsocketpath;\r
363 \r
364 /* PuTTY networking SockAddr to connect to the display, and associated\r
365 * gubbins */\r
366 SockAddr addr;\r
367 int port;\r
368 char *realhost;\r
369 \r
370 /* Auth details we invented for the virtual display on the SSH server. */\r
371 int remoteauthproto;\r
372 unsigned char *remoteauthdata;\r
373 int remoteauthdatalen;\r
374 char *remoteauthprotoname;\r
375 char *remoteauthdatastring;\r
376 \r
377 /* Our local auth details for talking to the real X display. */\r
378 int localauthproto;\r
379 unsigned char *localauthdata;\r
380 int localauthdatalen;\r
381 \r
382 /*\r
383 * Used inside x11fwd.c to remember recently seen\r
384 * XDM-AUTHORIZATION-1 strings, to avoid replay attacks.\r
385 */\r
386 tree234 *xdmseen;\r
387 };\r
388 /*\r
389 * x11_setup_display() parses the display variable and fills in an\r
390 * X11Display structure. Some remote auth details are invented;\r
391 * the supplied authtype parameter configures the preferred\r
392 * authorisation protocol to use at the remote end. The local auth\r
393 * details are looked up by calling platform_get_x11_auth.\r
394 */\r
395 extern struct X11Display *x11_setup_display(char *display, int authtype,\r
396 const Config *);\r
397 void x11_free_display(struct X11Display *disp);\r
398 extern const char *x11_init(Socket *, struct X11Display *, void *,\r
399 const char *, int, const Config *);\r
400 extern void x11_close(Socket);\r
401 extern int x11_send(Socket, char *, int);\r
402 extern void x11_unthrottle(Socket s);\r
403 extern void x11_override_throttle(Socket s, int enable);\r
404 char *x11_display(const char *display);\r
405 /* Platform-dependent X11 functions */\r
406 extern void platform_get_x11_auth(struct X11Display *display,\r
407 const Config *);\r
408 /* examine a mostly-filled-in X11Display and fill in localauth* */\r
409 extern const int platform_uses_x11_unix_by_default;\r
410 /* choose default X transport in the absence of a specified one */\r
411 SockAddr platform_get_x11_unix_address(const char *path, int displaynum);\r
412 /* make up a SockAddr naming the address for displaynum */\r
413 char *platform_get_x_display(void);\r
414 /* allocated local X display string, if any */\r
415 /* Callbacks in x11.c usable _by_ platform X11 functions */\r
416 /*\r
417 * This function does the job of platform_get_x11_auth, provided\r
418 * it is told where to find a normally formatted .Xauthority file:\r
419 * it opens that file, parses it to find an auth record which\r
420 * matches the display details in "display", and fills in the\r
421 * localauth fields.\r
422 *\r
423 * It is expected that most implementations of\r
424 * platform_get_x11_auth() will work by finding their system's\r
425 * .Xauthority file, adjusting the display details if necessary\r
426 * for local oddities like Unix-domain socket transport, and\r
427 * calling this function to do the rest of the work.\r
428 */\r
429 void x11_get_auth_from_authfile(struct X11Display *display,\r
430 const char *authfilename);\r
431 \r
432 Bignum copybn(Bignum b);\r
433 Bignum bn_power_2(int n);\r
434 void bn_restore_invariant(Bignum b);\r
435 Bignum bignum_from_long(unsigned long n);\r
436 void freebn(Bignum b);\r
437 Bignum modpow(Bignum base, Bignum exp, Bignum mod);\r
438 Bignum modmul(Bignum a, Bignum b, Bignum mod);\r
439 void decbn(Bignum n);\r
440 extern Bignum Zero, One;\r
441 Bignum bignum_from_bytes(const unsigned char *data, int nbytes);\r
442 int ssh1_read_bignum(const unsigned char *data, int len, Bignum * result);\r
443 int bignum_bitcount(Bignum bn);\r
444 int ssh1_bignum_length(Bignum bn);\r
445 int ssh2_bignum_length(Bignum bn);\r
446 int bignum_byte(Bignum bn, int i);\r
447 int bignum_bit(Bignum bn, int i);\r
448 void bignum_set_bit(Bignum bn, int i, int value);\r
449 int ssh1_write_bignum(void *data, Bignum bn);\r
450 Bignum biggcd(Bignum a, Bignum b);\r
451 unsigned short bignum_mod_short(Bignum number, unsigned short modulus);\r
452 Bignum bignum_add_long(Bignum number, unsigned long addend);\r
453 Bignum bigadd(Bignum a, Bignum b);\r
454 Bignum bigsub(Bignum a, Bignum b);\r
455 Bignum bigmul(Bignum a, Bignum b);\r
456 Bignum bigmuladd(Bignum a, Bignum b, Bignum addend);\r
457 Bignum bigdiv(Bignum a, Bignum b);\r
458 Bignum bigmod(Bignum a, Bignum b);\r
459 Bignum modinv(Bignum number, Bignum modulus);\r
460 Bignum bignum_bitmask(Bignum number);\r
461 Bignum bignum_rshift(Bignum number, int shift);\r
462 int bignum_cmp(Bignum a, Bignum b);\r
463 char *bignum_decimal(Bignum x);\r
464 \r
465 #ifdef DEBUG\r
466 void diagbn(char *prefix, Bignum md);\r
467 #endif\r
468 \r
469 void *dh_setup_group(const struct ssh_kex *kex);\r
470 void *dh_setup_gex(Bignum pval, Bignum gval);\r
471 void dh_cleanup(void *);\r
472 Bignum dh_create_e(void *, int nbits);\r
473 Bignum dh_find_K(void *, Bignum f);\r
474 \r
475 int loadrsakey(const Filename *filename, struct RSAKey *key,\r
476 char *passphrase, const char **errorstr);\r
477 int rsakey_encrypted(const Filename *filename, char **comment);\r
478 int rsakey_pubblob(const Filename *filename, void **blob, int *bloblen,\r
479 char **commentptr, const char **errorstr);\r
480 \r
481 int saversakey(const Filename *filename, struct RSAKey *key, char *passphrase);\r
482 \r
483 extern int base64_decode_atom(char *atom, unsigned char *out);\r
484 extern int base64_lines(int datalen);\r
485 extern void base64_encode_atom(unsigned char *data, int n, char *out);\r
486 extern void base64_encode(FILE *fp, unsigned char *data, int datalen, int cpl);\r
487 \r
488 /* ssh2_load_userkey can return this as an error */\r
489 extern struct ssh2_userkey ssh2_wrong_passphrase;\r
490 #define SSH2_WRONG_PASSPHRASE (&ssh2_wrong_passphrase)\r
491 \r
492 int ssh2_userkey_encrypted(const Filename *filename, char **comment);\r
493 struct ssh2_userkey *ssh2_load_userkey(const Filename *filename,\r
494 char *passphrase, const char **errorstr);\r
495 unsigned char *ssh2_userkey_loadpub(const Filename *filename, char **algorithm,\r
496 int *pub_blob_len, char **commentptr,\r
497 const char **errorstr);\r
498 int ssh2_save_userkey(const Filename *filename, struct ssh2_userkey *key,\r
499 char *passphrase);\r
500 const struct ssh_signkey *find_pubkey_alg(const char *name);\r
501 \r
502 enum {\r
503 SSH_KEYTYPE_UNOPENABLE,\r
504 SSH_KEYTYPE_UNKNOWN,\r
505 SSH_KEYTYPE_SSH1, SSH_KEYTYPE_SSH2,\r
506 SSH_KEYTYPE_OPENSSH, SSH_KEYTYPE_SSHCOM\r
507 };\r
508 int key_type(const Filename *filename);\r
509 char *key_type_to_str(int type);\r
510 \r
511 int import_possible(int type);\r
512 int import_target_type(int type);\r
513 int import_encrypted(const Filename *filename, int type, char **comment);\r
514 int import_ssh1(const Filename *filename, int type,\r
515 struct RSAKey *key, char *passphrase, const char **errmsg_p);\r
516 struct ssh2_userkey *import_ssh2(const Filename *filename, int type,\r
517 char *passphrase, const char **errmsg_p);\r
518 int export_ssh1(const Filename *filename, int type,\r
519 struct RSAKey *key, char *passphrase);\r
520 int export_ssh2(const Filename *filename, int type,\r
521 struct ssh2_userkey *key, char *passphrase);\r
522 \r
523 void des3_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len);\r
524 void des3_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len);\r
525 void des3_decrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,\r
526 unsigned char *blk, int len);\r
527 void des3_encrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,\r
528 unsigned char *blk, int len);\r
529 void aes256_encrypt_pubkey(unsigned char *key, unsigned char *blk,\r
530 int len);\r
531 void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk,\r
532 int len);\r
533 \r
534 void des_encrypt_xdmauth(unsigned char *key, unsigned char *blk, int len);\r
535 void des_decrypt_xdmauth(unsigned char *key, unsigned char *blk, int len);\r
536 \r
537 /*\r
538 * For progress updates in the key generation utility.\r
539 */\r
540 #define PROGFN_INITIALISE 1\r
541 #define PROGFN_LIN_PHASE 2\r
542 #define PROGFN_EXP_PHASE 3\r
543 #define PROGFN_PHASE_EXTENT 4\r
544 #define PROGFN_READY 5\r
545 #define PROGFN_PROGRESS 6\r
546 typedef void (*progfn_t) (void *param, int action, int phase, int progress);\r
547 \r
548 int rsa_generate(struct RSAKey *key, int bits, progfn_t pfn,\r
549 void *pfnparam);\r
550 int dsa_generate(struct dss_key *key, int bits, progfn_t pfn,\r
551 void *pfnparam);\r
552 Bignum primegen(int bits, int modulus, int residue, Bignum factor,\r
553 int phase, progfn_t pfn, void *pfnparam);\r
554 \r
555 \r
556 /*\r
557 * zlib compression.\r
558 */\r
559 void *zlib_compress_init(void);\r
560 void zlib_compress_cleanup(void *);\r
561 void *zlib_decompress_init(void);\r
562 void zlib_decompress_cleanup(void *);\r
563 int zlib_compress_block(void *, unsigned char *block, int len,\r
564 unsigned char **outblock, int *outlen);\r
565 int zlib_decompress_block(void *, unsigned char *block, int len,\r
566 unsigned char **outblock, int *outlen);\r
567 \r
568 /*\r
569 * SSH-1 agent messages.\r
570 */\r
571 #define SSH1_AGENTC_REQUEST_RSA_IDENTITIES 1\r
572 #define SSH1_AGENT_RSA_IDENTITIES_ANSWER 2\r
573 #define SSH1_AGENTC_RSA_CHALLENGE 3\r
574 #define SSH1_AGENT_RSA_RESPONSE 4\r
575 #define SSH1_AGENTC_ADD_RSA_IDENTITY 7\r
576 #define SSH1_AGENTC_REMOVE_RSA_IDENTITY 8\r
577 #define SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 /* openssh private? */\r
578 \r
579 /*\r
580 * Messages common to SSH-1 and OpenSSH's SSH-2.\r
581 */\r
582 #define SSH_AGENT_FAILURE 5\r
583 #define SSH_AGENT_SUCCESS 6\r
584 \r
585 /*\r
586 * OpenSSH's SSH-2 agent messages.\r
587 */\r
588 #define SSH2_AGENTC_REQUEST_IDENTITIES 11\r
589 #define SSH2_AGENT_IDENTITIES_ANSWER 12\r
590 #define SSH2_AGENTC_SIGN_REQUEST 13\r
591 #define SSH2_AGENT_SIGN_RESPONSE 14\r
592 #define SSH2_AGENTC_ADD_IDENTITY 17\r
593 #define SSH2_AGENTC_REMOVE_IDENTITY 18\r
594 #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19\r
595 \r
596 /*\r
597 * Need this to warn about support for the original SSH-2 keyfile\r
598 * format.\r
599 */\r
600 void old_keyfile_warning(void);\r