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1c1af145 | 1 | #include <stdio.h> |
2 | #include <string.h> | |
3 | ||
4 | #include "puttymem.h" | |
5 | #include "tree234.h" | |
6 | #include "network.h" | |
7 | #include "int64.h" | |
8 | #include "misc.h" | |
9 | ||
10 | struct ssh_channel; | |
11 | ||
12 | extern void sshfwd_close(struct ssh_channel *c); | |
13 | extern int sshfwd_write(struct ssh_channel *c, char *, int); | |
14 | extern void sshfwd_unthrottle(struct ssh_channel *c, int bufsize); | |
15 | ||
16 | /* | |
17 | * Useful thing. | |
18 | */ | |
19 | #ifndef lenof | |
20 | #define lenof(x) ( (sizeof((x))) / (sizeof(*(x)))) | |
21 | #endif | |
22 | ||
23 | #define SSH_CIPHER_IDEA 1 | |
24 | #define SSH_CIPHER_DES 2 | |
25 | #define SSH_CIPHER_3DES 3 | |
26 | #define SSH_CIPHER_BLOWFISH 6 | |
27 | ||
28 | #ifdef MSCRYPTOAPI | |
29 | #define APIEXTRA 8 | |
30 | #else | |
31 | #define APIEXTRA 0 | |
32 | #endif | |
33 | ||
34 | #ifndef BIGNUM_INTERNAL | |
35 | typedef void *Bignum; | |
36 | #endif | |
37 | ||
38 | struct RSAKey { | |
39 | int bits; | |
40 | int bytes; | |
41 | #ifdef MSCRYPTOAPI | |
42 | unsigned long exponent; | |
43 | unsigned char *modulus; | |
44 | #else | |
45 | Bignum modulus; | |
46 | Bignum exponent; | |
47 | Bignum private_exponent; | |
48 | Bignum p; | |
49 | Bignum q; | |
50 | Bignum iqmp; | |
51 | #endif | |
52 | char *comment; | |
53 | }; | |
54 | ||
55 | struct dss_key { | |
56 | Bignum p, q, g, y, x; | |
57 | }; | |
58 | ||
59 | int makekey(unsigned char *data, int len, struct RSAKey *result, | |
60 | unsigned char **keystr, int order); | |
61 | int makeprivate(unsigned char *data, int len, struct RSAKey *result); | |
62 | int rsaencrypt(unsigned char *data, int length, struct RSAKey *key); | |
63 | Bignum rsadecrypt(Bignum input, struct RSAKey *key); | |
64 | void rsasign(unsigned char *data, int length, struct RSAKey *key); | |
65 | void rsasanitise(struct RSAKey *key); | |
66 | int rsastr_len(struct RSAKey *key); | |
67 | void rsastr_fmt(char *str, struct RSAKey *key); | |
68 | void rsa_fingerprint(char *str, int len, struct RSAKey *key); | |
69 | int rsa_verify(struct RSAKey *key); | |
70 | unsigned char *rsa_public_blob(struct RSAKey *key, int *len); | |
71 | int rsa_public_blob_len(void *data, int maxlen); | |
72 | void freersakey(struct RSAKey *key); | |
73 | ||
74 | #ifndef PUTTY_UINT32_DEFINED | |
75 | /* This makes assumptions about the int type. */ | |
76 | typedef unsigned int uint32; | |
77 | #define PUTTY_UINT32_DEFINED | |
78 | #endif | |
79 | typedef uint32 word32; | |
80 | ||
81 | unsigned long crc32_compute(const void *s, size_t len); | |
82 | unsigned long crc32_update(unsigned long crc_input, const void *s, size_t len); | |
83 | ||
84 | /* SSH CRC compensation attack detector */ | |
85 | void *crcda_make_context(void); | |
86 | void crcda_free_context(void *handle); | |
87 | int detect_attack(void *handle, unsigned char *buf, uint32 len, | |
88 | unsigned char *IV); | |
89 | ||
90 | /* | |
91 | * SSH2 RSA key exchange functions | |
92 | */ | |
93 | struct ssh_hash; | |
94 | void *ssh_rsakex_newkey(char *data, int len); | |
95 | void ssh_rsakex_freekey(void *key); | |
96 | int ssh_rsakex_klen(void *key); | |
97 | void ssh_rsakex_encrypt(const struct ssh_hash *h, unsigned char *in, int inlen, | |
98 | unsigned char *out, int outlen, | |
99 | void *key); | |
100 | ||
101 | typedef struct { | |
102 | uint32 h[4]; | |
103 | } MD5_Core_State; | |
104 | ||
105 | struct MD5Context { | |
106 | #ifdef MSCRYPTOAPI | |
107 | unsigned long hHash; | |
108 | #else | |
109 | MD5_Core_State core; | |
110 | unsigned char block[64]; | |
111 | int blkused; | |
112 | uint32 lenhi, lenlo; | |
113 | #endif | |
114 | }; | |
115 | ||
116 | void MD5Init(struct MD5Context *context); | |
117 | void MD5Update(struct MD5Context *context, unsigned char const *buf, | |
118 | unsigned len); | |
119 | void MD5Final(unsigned char digest[16], struct MD5Context *context); | |
120 | void MD5Simple(void const *p, unsigned len, unsigned char output[16]); | |
121 | ||
122 | void *hmacmd5_make_context(void); | |
123 | void hmacmd5_free_context(void *handle); | |
124 | void hmacmd5_key(void *handle, void const *key, int len); | |
125 | void hmacmd5_do_hmac(void *handle, unsigned char const *blk, int len, | |
126 | unsigned char *hmac); | |
127 | ||
128 | typedef struct { | |
129 | uint32 h[5]; | |
130 | unsigned char block[64]; | |
131 | int blkused; | |
132 | uint32 lenhi, lenlo; | |
133 | } SHA_State; | |
134 | void SHA_Init(SHA_State * s); | |
135 | void SHA_Bytes(SHA_State * s, void *p, int len); | |
136 | void SHA_Final(SHA_State * s, unsigned char *output); | |
137 | void SHA_Simple(void *p, int len, unsigned char *output); | |
138 | ||
139 | void hmac_sha1_simple(void *key, int keylen, void *data, int datalen, | |
140 | unsigned char *output); | |
141 | typedef struct { | |
142 | uint32 h[8]; | |
143 | unsigned char block[64]; | |
144 | int blkused; | |
145 | uint32 lenhi, lenlo; | |
146 | } SHA256_State; | |
147 | void SHA256_Init(SHA256_State * s); | |
148 | void SHA256_Bytes(SHA256_State * s, const void *p, int len); | |
149 | void SHA256_Final(SHA256_State * s, unsigned char *output); | |
150 | void SHA256_Simple(const void *p, int len, unsigned char *output); | |
151 | ||
152 | typedef struct { | |
153 | uint64 h[8]; | |
154 | unsigned char block[128]; | |
155 | int blkused; | |
156 | uint32 len[4]; | |
157 | } SHA512_State; | |
158 | void SHA512_Init(SHA512_State * s); | |
159 | void SHA512_Bytes(SHA512_State * s, const void *p, int len); | |
160 | void SHA512_Final(SHA512_State * s, unsigned char *output); | |
161 | void SHA512_Simple(const void *p, int len, unsigned char *output); | |
162 | ||
163 | struct ssh_cipher { | |
164 | void *(*make_context)(void); | |
165 | void (*free_context)(void *); | |
166 | void (*sesskey) (void *, unsigned char *key); /* for SSH-1 */ | |
167 | void (*encrypt) (void *, unsigned char *blk, int len); | |
168 | void (*decrypt) (void *, unsigned char *blk, int len); | |
169 | int blksize; | |
170 | char *text_name; | |
171 | }; | |
172 | ||
173 | struct ssh2_cipher { | |
174 | void *(*make_context)(void); | |
175 | void (*free_context)(void *); | |
176 | void (*setiv) (void *, unsigned char *key); /* for SSH-2 */ | |
177 | void (*setkey) (void *, unsigned char *key);/* for SSH-2 */ | |
178 | void (*encrypt) (void *, unsigned char *blk, int len); | |
179 | void (*decrypt) (void *, unsigned char *blk, int len); | |
180 | char *name; | |
181 | int blksize; | |
182 | int keylen; | |
183 | unsigned int flags; | |
184 | #define SSH_CIPHER_IS_CBC 1 | |
185 | char *text_name; | |
186 | }; | |
187 | ||
188 | struct ssh2_ciphers { | |
189 | int nciphers; | |
190 | const struct ssh2_cipher *const *list; | |
191 | }; | |
192 | ||
193 | struct ssh_mac { | |
194 | void *(*make_context)(void); | |
195 | void (*free_context)(void *); | |
196 | void (*setkey) (void *, unsigned char *key); | |
197 | /* whole-packet operations */ | |
198 | void (*generate) (void *, unsigned char *blk, int len, unsigned long seq); | |
199 | int (*verify) (void *, unsigned char *blk, int len, unsigned long seq); | |
200 | /* partial-packet operations */ | |
201 | void (*start) (void *); | |
202 | void (*bytes) (void *, unsigned char const *, int); | |
203 | void (*genresult) (void *, unsigned char *); | |
204 | int (*verresult) (void *, unsigned char const *); | |
205 | char *name; | |
206 | int len; | |
207 | char *text_name; | |
208 | }; | |
209 | ||
210 | struct ssh_hash { | |
211 | void *(*init)(void); /* also allocates context */ | |
212 | void (*bytes)(void *, void *, int); | |
213 | void (*final)(void *, unsigned char *); /* also frees context */ | |
214 | int hlen; /* output length in bytes */ | |
215 | char *text_name; | |
216 | }; | |
217 | ||
218 | struct ssh_kex { | |
219 | char *name, *groupname; | |
220 | enum { KEXTYPE_DH, KEXTYPE_RSA } main_type; | |
221 | /* For DH */ | |
222 | const unsigned char *pdata, *gdata; /* NULL means group exchange */ | |
223 | int plen, glen; | |
224 | const struct ssh_hash *hash; | |
225 | }; | |
226 | ||
227 | struct ssh_kexes { | |
228 | int nkexes; | |
229 | const struct ssh_kex *const *list; | |
230 | }; | |
231 | ||
232 | struct ssh_signkey { | |
233 | void *(*newkey) (char *data, int len); | |
234 | void (*freekey) (void *key); | |
235 | char *(*fmtkey) (void *key); | |
236 | unsigned char *(*public_blob) (void *key, int *len); | |
237 | unsigned char *(*private_blob) (void *key, int *len); | |
238 | void *(*createkey) (unsigned char *pub_blob, int pub_len, | |
239 | unsigned char *priv_blob, int priv_len); | |
240 | void *(*openssh_createkey) (unsigned char **blob, int *len); | |
241 | int (*openssh_fmtkey) (void *key, unsigned char *blob, int len); | |
242 | int (*pubkey_bits) (void *blob, int len); | |
243 | char *(*fingerprint) (void *key); | |
244 | int (*verifysig) (void *key, char *sig, int siglen, | |
245 | char *data, int datalen); | |
246 | unsigned char *(*sign) (void *key, char *data, int datalen, | |
247 | int *siglen); | |
248 | char *name; | |
249 | char *keytype; /* for host key cache */ | |
250 | }; | |
251 | ||
252 | struct ssh_compress { | |
253 | char *name; | |
254 | /* For zlib@openssh.com: if non-NULL, this name will be considered once | |
255 | * userauth has completed successfully. */ | |
256 | char *delayed_name; | |
257 | void *(*compress_init) (void); | |
258 | void (*compress_cleanup) (void *); | |
259 | int (*compress) (void *, unsigned char *block, int len, | |
260 | unsigned char **outblock, int *outlen); | |
261 | void *(*decompress_init) (void); | |
262 | void (*decompress_cleanup) (void *); | |
263 | int (*decompress) (void *, unsigned char *block, int len, | |
264 | unsigned char **outblock, int *outlen); | |
265 | int (*disable_compression) (void *); | |
266 | char *text_name; | |
267 | }; | |
268 | ||
269 | struct ssh2_userkey { | |
270 | const struct ssh_signkey *alg; /* the key algorithm */ | |
271 | void *data; /* the key data */ | |
272 | char *comment; /* the key comment */ | |
273 | }; | |
274 | ||
275 | /* The maximum length of any hash algorithm used in kex. (bytes) */ | |
276 | #define SSH2_KEX_MAX_HASH_LEN (32) /* SHA-256 */ | |
277 | ||
278 | extern const struct ssh_cipher ssh_3des; | |
279 | extern const struct ssh_cipher ssh_des; | |
280 | extern const struct ssh_cipher ssh_blowfish_ssh1; | |
281 | extern const struct ssh2_ciphers ssh2_3des; | |
282 | extern const struct ssh2_ciphers ssh2_des; | |
283 | extern const struct ssh2_ciphers ssh2_aes; | |
284 | extern const struct ssh2_ciphers ssh2_blowfish; | |
285 | extern const struct ssh2_ciphers ssh2_arcfour; | |
286 | extern const struct ssh_hash ssh_sha1; | |
287 | extern const struct ssh_hash ssh_sha256; | |
288 | extern const struct ssh_kexes ssh_diffiehellman_group1; | |
289 | extern const struct ssh_kexes ssh_diffiehellman_group14; | |
290 | extern const struct ssh_kexes ssh_diffiehellman_gex; | |
291 | extern const struct ssh_kexes ssh_rsa_kex; | |
292 | extern const struct ssh_signkey ssh_dss; | |
293 | extern const struct ssh_signkey ssh_rsa; | |
294 | extern const struct ssh_mac ssh_hmac_md5; | |
295 | extern const struct ssh_mac ssh_hmac_sha1; | |
296 | extern const struct ssh_mac ssh_hmac_sha1_buggy; | |
297 | extern const struct ssh_mac ssh_hmac_sha1_96; | |
298 | extern const struct ssh_mac ssh_hmac_sha1_96_buggy; | |
299 | ||
300 | void *aes_make_context(void); | |
301 | void aes_free_context(void *handle); | |
302 | void aes128_key(void *handle, unsigned char *key); | |
303 | void aes192_key(void *handle, unsigned char *key); | |
304 | void aes256_key(void *handle, unsigned char *key); | |
305 | void aes_iv(void *handle, unsigned char *iv); | |
306 | void aes_ssh2_encrypt_blk(void *handle, unsigned char *blk, int len); | |
307 | void aes_ssh2_decrypt_blk(void *handle, unsigned char *blk, int len); | |
308 | ||
309 | /* | |
310 | * PuTTY version number formatted as an SSH version string. | |
311 | */ | |
312 | extern char sshver[]; | |
313 | ||
314 | /* | |
315 | * Gross hack: pscp will try to start SFTP but fall back to scp1 if | |
316 | * that fails. This variable is the means by which scp.c can reach | |
317 | * into the SSH code and find out which one it got. | |
318 | */ | |
319 | extern int ssh_fallback_cmd(void *handle); | |
320 | ||
321 | #ifndef MSCRYPTOAPI | |
322 | void SHATransform(word32 * digest, word32 * data); | |
323 | #endif | |
324 | ||
325 | int random_byte(void); | |
326 | void random_add_noise(void *noise, int length); | |
327 | void random_add_heavynoise(void *noise, int length); | |
328 | ||
329 | void logevent(void *, const char *); | |
330 | ||
331 | /* Allocate and register a new channel for port forwarding */ | |
332 | void *new_sock_channel(void *handle, Socket s); | |
333 | void ssh_send_port_open(void *channel, char *hostname, int port, char *org); | |
334 | ||
335 | /* Exports from portfwd.c */ | |
336 | extern const char *pfd_newconnect(Socket * s, char *hostname, int port, | |
337 | void *c, const Config *cfg, | |
338 | int addressfamily); | |
339 | /* desthost == NULL indicates dynamic (SOCKS) port forwarding */ | |
340 | extern const char *pfd_addforward(char *desthost, int destport, char *srcaddr, | |
341 | int port, void *backhandle, | |
342 | const Config *cfg, void **sockdata, | |
343 | int address_family); | |
344 | extern void pfd_close(Socket s); | |
345 | extern void pfd_terminate(void *sockdata); | |
346 | extern int pfd_send(Socket s, char *data, int len); | |
347 | extern void pfd_confirm(Socket s); | |
348 | extern void pfd_unthrottle(Socket s); | |
349 | extern void pfd_override_throttle(Socket s, int enable); | |
350 | ||
351 | /* Exports from x11fwd.c */ | |
352 | enum { | |
353 | X11_TRANS_IPV4 = 0, X11_TRANS_IPV6 = 6, X11_TRANS_UNIX = 256 | |
354 | }; | |
355 | struct X11Display { | |
356 | /* Broken-down components of the display name itself */ | |
357 | int unixdomain; | |
358 | char *hostname; | |
359 | int displaynum; | |
360 | int screennum; | |
361 | /* OSX sometimes replaces all the above with a full Unix-socket pathname */ | |
362 | char *unixsocketpath; | |
363 | ||
364 | /* PuTTY networking SockAddr to connect to the display, and associated | |
365 | * gubbins */ | |
366 | SockAddr addr; | |
367 | int port; | |
368 | char *realhost; | |
369 | ||
370 | /* Auth details we invented for the virtual display on the SSH server. */ | |
371 | int remoteauthproto; | |
372 | unsigned char *remoteauthdata; | |
373 | int remoteauthdatalen; | |
374 | char *remoteauthprotoname; | |
375 | char *remoteauthdatastring; | |
376 | ||
377 | /* Our local auth details for talking to the real X display. */ | |
378 | int localauthproto; | |
379 | unsigned char *localauthdata; | |
380 | int localauthdatalen; | |
381 | ||
382 | /* | |
383 | * Used inside x11fwd.c to remember recently seen | |
384 | * XDM-AUTHORIZATION-1 strings, to avoid replay attacks. | |
385 | */ | |
386 | tree234 *xdmseen; | |
387 | }; | |
388 | /* | |
389 | * x11_setup_display() parses the display variable and fills in an | |
390 | * X11Display structure. Some remote auth details are invented; | |
391 | * the supplied authtype parameter configures the preferred | |
392 | * authorisation protocol to use at the remote end. The local auth | |
393 | * details are looked up by calling platform_get_x11_auth. | |
394 | */ | |
395 | extern struct X11Display *x11_setup_display(char *display, int authtype, | |
396 | const Config *); | |
397 | void x11_free_display(struct X11Display *disp); | |
398 | extern const char *x11_init(Socket *, struct X11Display *, void *, | |
399 | const char *, int, const Config *); | |
400 | extern void x11_close(Socket); | |
401 | extern int x11_send(Socket, char *, int); | |
402 | extern void x11_unthrottle(Socket s); | |
403 | extern void x11_override_throttle(Socket s, int enable); | |
404 | char *x11_display(const char *display); | |
405 | /* Platform-dependent X11 functions */ | |
406 | extern void platform_get_x11_auth(struct X11Display *display, | |
407 | const Config *); | |
408 | /* examine a mostly-filled-in X11Display and fill in localauth* */ | |
409 | extern const int platform_uses_x11_unix_by_default; | |
410 | /* choose default X transport in the absence of a specified one */ | |
411 | SockAddr platform_get_x11_unix_address(const char *path, int displaynum); | |
412 | /* make up a SockAddr naming the address for displaynum */ | |
413 | char *platform_get_x_display(void); | |
414 | /* allocated local X display string, if any */ | |
415 | /* Callbacks in x11.c usable _by_ platform X11 functions */ | |
416 | /* | |
417 | * This function does the job of platform_get_x11_auth, provided | |
418 | * it is told where to find a normally formatted .Xauthority file: | |
419 | * it opens that file, parses it to find an auth record which | |
420 | * matches the display details in "display", and fills in the | |
421 | * localauth fields. | |
422 | * | |
423 | * It is expected that most implementations of | |
424 | * platform_get_x11_auth() will work by finding their system's | |
425 | * .Xauthority file, adjusting the display details if necessary | |
426 | * for local oddities like Unix-domain socket transport, and | |
427 | * calling this function to do the rest of the work. | |
428 | */ | |
429 | void x11_get_auth_from_authfile(struct X11Display *display, | |
430 | const char *authfilename); | |
431 | ||
432 | Bignum copybn(Bignum b); | |
433 | Bignum bn_power_2(int n); | |
434 | void bn_restore_invariant(Bignum b); | |
435 | Bignum bignum_from_long(unsigned long n); | |
436 | void freebn(Bignum b); | |
437 | Bignum modpow(Bignum base, Bignum exp, Bignum mod); | |
438 | Bignum modmul(Bignum a, Bignum b, Bignum mod); | |
439 | void decbn(Bignum n); | |
440 | extern Bignum Zero, One; | |
441 | Bignum bignum_from_bytes(const unsigned char *data, int nbytes); | |
442 | int ssh1_read_bignum(const unsigned char *data, int len, Bignum * result); | |
443 | int bignum_bitcount(Bignum bn); | |
444 | int ssh1_bignum_length(Bignum bn); | |
445 | int ssh2_bignum_length(Bignum bn); | |
446 | int bignum_byte(Bignum bn, int i); | |
447 | int bignum_bit(Bignum bn, int i); | |
448 | void bignum_set_bit(Bignum bn, int i, int value); | |
449 | int ssh1_write_bignum(void *data, Bignum bn); | |
450 | Bignum biggcd(Bignum a, Bignum b); | |
451 | unsigned short bignum_mod_short(Bignum number, unsigned short modulus); | |
452 | Bignum bignum_add_long(Bignum number, unsigned long addend); | |
453 | Bignum bigadd(Bignum a, Bignum b); | |
454 | Bignum bigsub(Bignum a, Bignum b); | |
455 | Bignum bigmul(Bignum a, Bignum b); | |
456 | Bignum bigmuladd(Bignum a, Bignum b, Bignum addend); | |
457 | Bignum bigdiv(Bignum a, Bignum b); | |
458 | Bignum bigmod(Bignum a, Bignum b); | |
459 | Bignum modinv(Bignum number, Bignum modulus); | |
460 | Bignum bignum_bitmask(Bignum number); | |
461 | Bignum bignum_rshift(Bignum number, int shift); | |
462 | int bignum_cmp(Bignum a, Bignum b); | |
463 | char *bignum_decimal(Bignum x); | |
464 | ||
465 | #ifdef DEBUG | |
466 | void diagbn(char *prefix, Bignum md); | |
467 | #endif | |
468 | ||
469 | void *dh_setup_group(const struct ssh_kex *kex); | |
470 | void *dh_setup_gex(Bignum pval, Bignum gval); | |
471 | void dh_cleanup(void *); | |
472 | Bignum dh_create_e(void *, int nbits); | |
473 | Bignum dh_find_K(void *, Bignum f); | |
474 | ||
475 | int loadrsakey(const Filename *filename, struct RSAKey *key, | |
476 | char *passphrase, const char **errorstr); | |
477 | int rsakey_encrypted(const Filename *filename, char **comment); | |
478 | int rsakey_pubblob(const Filename *filename, void **blob, int *bloblen, | |
479 | char **commentptr, const char **errorstr); | |
480 | ||
481 | int saversakey(const Filename *filename, struct RSAKey *key, char *passphrase); | |
482 | ||
483 | extern int base64_decode_atom(char *atom, unsigned char *out); | |
484 | extern int base64_lines(int datalen); | |
485 | extern void base64_encode_atom(unsigned char *data, int n, char *out); | |
486 | extern void base64_encode(FILE *fp, unsigned char *data, int datalen, int cpl); | |
487 | ||
488 | /* ssh2_load_userkey can return this as an error */ | |
489 | extern struct ssh2_userkey ssh2_wrong_passphrase; | |
490 | #define SSH2_WRONG_PASSPHRASE (&ssh2_wrong_passphrase) | |
491 | ||
492 | int ssh2_userkey_encrypted(const Filename *filename, char **comment); | |
493 | struct ssh2_userkey *ssh2_load_userkey(const Filename *filename, | |
494 | char *passphrase, const char **errorstr); | |
495 | unsigned char *ssh2_userkey_loadpub(const Filename *filename, char **algorithm, | |
496 | int *pub_blob_len, char **commentptr, | |
497 | const char **errorstr); | |
498 | int ssh2_save_userkey(const Filename *filename, struct ssh2_userkey *key, | |
499 | char *passphrase); | |
500 | const struct ssh_signkey *find_pubkey_alg(const char *name); | |
501 | ||
502 | enum { | |
503 | SSH_KEYTYPE_UNOPENABLE, | |
504 | SSH_KEYTYPE_UNKNOWN, | |
505 | SSH_KEYTYPE_SSH1, SSH_KEYTYPE_SSH2, | |
506 | SSH_KEYTYPE_OPENSSH, SSH_KEYTYPE_SSHCOM | |
507 | }; | |
508 | int key_type(const Filename *filename); | |
509 | char *key_type_to_str(int type); | |
510 | ||
511 | int import_possible(int type); | |
512 | int import_target_type(int type); | |
513 | int import_encrypted(const Filename *filename, int type, char **comment); | |
514 | int import_ssh1(const Filename *filename, int type, | |
515 | struct RSAKey *key, char *passphrase, const char **errmsg_p); | |
516 | struct ssh2_userkey *import_ssh2(const Filename *filename, int type, | |
517 | char *passphrase, const char **errmsg_p); | |
518 | int export_ssh1(const Filename *filename, int type, | |
519 | struct RSAKey *key, char *passphrase); | |
520 | int export_ssh2(const Filename *filename, int type, | |
521 | struct ssh2_userkey *key, char *passphrase); | |
522 | ||
523 | void des3_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len); | |
524 | void des3_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len); | |
525 | void des3_decrypt_pubkey_ossh(unsigned char *key, unsigned char *iv, | |
526 | unsigned char *blk, int len); | |
527 | void des3_encrypt_pubkey_ossh(unsigned char *key, unsigned char *iv, | |
528 | unsigned char *blk, int len); | |
529 | void aes256_encrypt_pubkey(unsigned char *key, unsigned char *blk, | |
530 | int len); | |
531 | void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk, | |
532 | int len); | |
533 | ||
534 | void des_encrypt_xdmauth(unsigned char *key, unsigned char *blk, int len); | |
535 | void des_decrypt_xdmauth(unsigned char *key, unsigned char *blk, int len); | |
536 | ||
537 | /* | |
538 | * For progress updates in the key generation utility. | |
539 | */ | |
540 | #define PROGFN_INITIALISE 1 | |
541 | #define PROGFN_LIN_PHASE 2 | |
542 | #define PROGFN_EXP_PHASE 3 | |
543 | #define PROGFN_PHASE_EXTENT 4 | |
544 | #define PROGFN_READY 5 | |
545 | #define PROGFN_PROGRESS 6 | |
546 | typedef void (*progfn_t) (void *param, int action, int phase, int progress); | |
547 | ||
548 | int rsa_generate(struct RSAKey *key, int bits, progfn_t pfn, | |
549 | void *pfnparam); | |
550 | int dsa_generate(struct dss_key *key, int bits, progfn_t pfn, | |
551 | void *pfnparam); | |
552 | Bignum primegen(int bits, int modulus, int residue, Bignum factor, | |
553 | int phase, progfn_t pfn, void *pfnparam); | |
554 | ||
555 | ||
556 | /* | |
557 | * zlib compression. | |
558 | */ | |
559 | void *zlib_compress_init(void); | |
560 | void zlib_compress_cleanup(void *); | |
561 | void *zlib_decompress_init(void); | |
562 | void zlib_decompress_cleanup(void *); | |
563 | int zlib_compress_block(void *, unsigned char *block, int len, | |
564 | unsigned char **outblock, int *outlen); | |
565 | int zlib_decompress_block(void *, unsigned char *block, int len, | |
566 | unsigned char **outblock, int *outlen); | |
567 | ||
568 | /* | |
569 | * SSH-1 agent messages. | |
570 | */ | |
571 | #define SSH1_AGENTC_REQUEST_RSA_IDENTITIES 1 | |
572 | #define SSH1_AGENT_RSA_IDENTITIES_ANSWER 2 | |
573 | #define SSH1_AGENTC_RSA_CHALLENGE 3 | |
574 | #define SSH1_AGENT_RSA_RESPONSE 4 | |
575 | #define SSH1_AGENTC_ADD_RSA_IDENTITY 7 | |
576 | #define SSH1_AGENTC_REMOVE_RSA_IDENTITY 8 | |
577 | #define SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 /* openssh private? */ | |
578 | ||
579 | /* | |
580 | * Messages common to SSH-1 and OpenSSH's SSH-2. | |
581 | */ | |
582 | #define SSH_AGENT_FAILURE 5 | |
583 | #define SSH_AGENT_SUCCESS 6 | |
584 | ||
585 | /* | |
586 | * OpenSSH's SSH-2 agent messages. | |
587 | */ | |
588 | #define SSH2_AGENTC_REQUEST_IDENTITIES 11 | |
589 | #define SSH2_AGENT_IDENTITIES_ANSWER 12 | |
590 | #define SSH2_AGENTC_SIGN_REQUEST 13 | |
591 | #define SSH2_AGENT_SIGN_RESPONSE 14 | |
592 | #define SSH2_AGENTC_ADD_IDENTITY 17 | |
593 | #define SSH2_AGENTC_REMOVE_IDENTITY 18 | |
594 | #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 | |
595 | ||
596 | /* | |
597 | * Need this to warn about support for the original SSH-2 keyfile | |
598 | * format. | |
599 | */ | |
600 | void old_keyfile_warning(void); |