df3c4460 |
1 | #include <stdio.h> |
37508af4 |
2 | #include <string.h> |
3 | |
dcbde236 |
4 | #include "puttymem.h" |
8def70c3 |
5 | #include "tree234.h" |
d74d141c |
6 | #include "network.h" |
5c72ca61 |
7 | #include "int64.h" |
9a30e26b |
8 | #include "misc.h" |
dcbde236 |
9 | |
2871113a |
10 | struct ssh_channel; |
11 | |
5471d09a |
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 | |
e5574168 |
16 | /* |
17 | * Useful thing. |
18 | */ |
19 | #ifndef lenof |
20 | #define lenof(x) ( (sizeof((x))) / (sizeof(*(x)))) |
21 | #endif |
22 | |
bea1ef5f |
23 | #define SSH_CIPHER_IDEA 1 |
9697bfd2 |
24 | #define SSH_CIPHER_DES 2 |
bea1ef5f |
25 | #define SSH_CIPHER_3DES 3 |
26 | #define SSH_CIPHER_BLOWFISH 6 |
27 | |
e5574168 |
28 | #ifdef MSCRYPTOAPI |
29 | #define APIEXTRA 8 |
30 | #else |
31 | #define APIEXTRA 0 |
32 | #endif |
33 | |
3709bfe9 |
34 | #ifndef BIGNUM_INTERNAL |
35 | typedef void *Bignum; |
36 | #endif |
7cca0d81 |
37 | |
374330e2 |
38 | struct RSAKey { |
39 | int bits; |
40 | int bytes; |
8f203108 |
41 | #ifdef MSCRYPTOAPI |
42 | unsigned long exponent; |
43 | unsigned char *modulus; |
44 | #else |
7cca0d81 |
45 | Bignum modulus; |
46 | Bignum exponent; |
47 | Bignum private_exponent; |
9400cf6f |
48 | Bignum p; |
49 | Bignum q; |
50 | Bignum iqmp; |
65a22376 |
51 | #endif |
52 | char *comment; |
9400cf6f |
53 | }; |
54 | |
5c72ca61 |
55 | struct dss_key { |
56 | Bignum p, q, g, y, x; |
57 | }; |
58 | |
0016d70b |
59 | int makekey(unsigned char *data, int len, struct RSAKey *result, |
7cca0d81 |
60 | unsigned char **keystr, int order); |
0016d70b |
61 | int makeprivate(unsigned char *data, int len, struct RSAKey *result); |
62 | int rsaencrypt(unsigned char *data, int length, struct RSAKey *key); |
7cca0d81 |
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); |
374330e2 |
66 | int rsastr_len(struct RSAKey *key); |
67 | void rsastr_fmt(char *str, struct RSAKey *key); |
1c2a93c4 |
68 | void rsa_fingerprint(char *str, int len, struct RSAKey *key); |
014970c8 |
69 | int rsa_verify(struct RSAKey *key); |
3f2d010c |
70 | unsigned char *rsa_public_blob(struct RSAKey *key, int *len); |
0016d70b |
71 | int rsa_public_blob_len(void *data, int maxlen); |
5c58ad2d |
72 | void freersakey(struct RSAKey *key); |
374330e2 |
73 | |
74 | typedef unsigned int word32; |
75 | typedef unsigned int uint32; |
76 | |
71bedafe |
77 | unsigned long crc32_compute(const void *s, size_t len); |
9a3a93a5 |
78 | unsigned long crc32_update(unsigned long crc_input, const void *s, size_t len); |
79 | |
80 | /* SSH CRC compensation attack detector */ |
0183b242 |
81 | void *crcda_make_context(void); |
82 | void crcda_free_context(void *handle); |
83 | int detect_attack(void *handle, unsigned char *buf, uint32 len, |
84 | unsigned char *IV); |
374330e2 |
85 | |
fae1a71b |
86 | /* |
87 | * SSH2 RSA key exchange functions |
88 | */ |
89 | struct ssh_hash; |
90 | void *ssh_rsakex_newkey(char *data, int len); |
91 | void ssh_rsakex_freekey(void *key); |
92 | int ssh_rsakex_klen(void *key); |
93 | void ssh_rsakex_encrypt(const struct ssh_hash *h, unsigned char *in, int inlen, |
94 | unsigned char *out, int outlen, |
95 | void *key); |
96 | |
48672163 |
97 | typedef struct { |
98 | uint32 h[4]; |
99 | } MD5_Core_State; |
100 | |
374330e2 |
101 | struct MD5Context { |
8f203108 |
102 | #ifdef MSCRYPTOAPI |
103 | unsigned long hHash; |
104 | #else |
48672163 |
105 | MD5_Core_State core; |
bb093ca7 |
106 | unsigned char block[64]; |
48672163 |
107 | int blkused; |
108 | uint32 lenhi, lenlo; |
8f203108 |
109 | #endif |
374330e2 |
110 | }; |
111 | |
112 | void MD5Init(struct MD5Context *context); |
113 | void MD5Update(struct MD5Context *context, unsigned char const *buf, |
32874aea |
114 | unsigned len); |
374330e2 |
115 | void MD5Final(unsigned char digest[16], struct MD5Context *context); |
f33ba69e |
116 | void MD5Simple(void const *p, unsigned len, unsigned char output[16]); |
117 | |
118 | void *hmacmd5_make_context(void); |
119 | void hmacmd5_free_context(void *handle); |
447f7a7b |
120 | void hmacmd5_key(void *handle, void const *key, int len); |
f33ba69e |
121 | void hmacmd5_do_hmac(void *handle, unsigned char const *blk, int len, |
122 | unsigned char *hmac); |
374330e2 |
123 | |
e5574168 |
124 | typedef struct { |
125 | uint32 h[5]; |
126 | unsigned char block[64]; |
127 | int blkused; |
128 | uint32 lenhi, lenlo; |
129 | } SHA_State; |
32874aea |
130 | void SHA_Init(SHA_State * s); |
131 | void SHA_Bytes(SHA_State * s, void *p, int len); |
132 | void SHA_Final(SHA_State * s, unsigned char *output); |
7cca0d81 |
133 | void SHA_Simple(void *p, int len, unsigned char *output); |
e5574168 |
134 | |
5c72ca61 |
135 | void hmac_sha1_simple(void *key, int keylen, void *data, int datalen, |
136 | unsigned char *output); |
062e5811 |
137 | typedef struct { |
138 | uint32 h[8]; |
139 | unsigned char block[64]; |
140 | int blkused; |
141 | uint32 lenhi, lenlo; |
142 | } SHA256_State; |
143 | void SHA256_Init(SHA256_State * s); |
144 | void SHA256_Bytes(SHA256_State * s, const void *p, int len); |
145 | void SHA256_Final(SHA256_State * s, unsigned char *output); |
146 | void SHA256_Simple(const void *p, int len, unsigned char *output); |
5c72ca61 |
147 | |
148 | typedef struct { |
149 | uint64 h[8]; |
150 | unsigned char block[128]; |
151 | int blkused; |
152 | uint32 len[4]; |
153 | } SHA512_State; |
154 | void SHA512_Init(SHA512_State * s); |
155 | void SHA512_Bytes(SHA512_State * s, const void *p, int len); |
156 | void SHA512_Final(SHA512_State * s, unsigned char *output); |
157 | void SHA512_Simple(const void *p, int len, unsigned char *output); |
158 | |
374330e2 |
159 | struct ssh_cipher { |
371e569c |
160 | void *(*make_context)(void); |
161 | void (*free_context)(void *); |
2e85c969 |
162 | void (*sesskey) (void *, unsigned char *key); /* for SSH-1 */ |
371e569c |
163 | void (*encrypt) (void *, unsigned char *blk, int len); |
164 | void (*decrypt) (void *, unsigned char *blk, int len); |
0a3f1d48 |
165 | int blksize; |
371e569c |
166 | char *text_name; |
0a3f1d48 |
167 | }; |
168 | |
169 | struct ssh2_cipher { |
371e569c |
170 | void *(*make_context)(void); |
171 | void (*free_context)(void *); |
2e85c969 |
172 | void (*setiv) (void *, unsigned char *key); /* for SSH-2 */ |
173 | void (*setkey) (void *, unsigned char *key);/* for SSH-2 */ |
371e569c |
174 | void (*encrypt) (void *, unsigned char *blk, int len); |
175 | void (*decrypt) (void *, unsigned char *blk, int len); |
e5574168 |
176 | char *name; |
177 | int blksize; |
d2a0e0be |
178 | int keylen; |
97ab28d7 |
179 | unsigned int flags; |
180 | #define SSH_CIPHER_IS_CBC 1 |
371e569c |
181 | char *text_name; |
e5574168 |
182 | }; |
183 | |
0a3f1d48 |
184 | struct ssh2_ciphers { |
185 | int nciphers; |
65a22376 |
186 | const struct ssh2_cipher *const *list; |
0a3f1d48 |
187 | }; |
188 | |
e5574168 |
189 | struct ssh_mac { |
e0e1a00d |
190 | void *(*make_context)(void); |
191 | void (*free_context)(void *); |
192 | void (*setkey) (void *, unsigned char *key); |
9916cc1e |
193 | /* whole-packet operations */ |
e0e1a00d |
194 | void (*generate) (void *, unsigned char *blk, int len, unsigned long seq); |
195 | int (*verify) (void *, unsigned char *blk, int len, unsigned long seq); |
9916cc1e |
196 | /* partial-packet operations */ |
197 | void (*start) (void *); |
198 | void (*bytes) (void *, unsigned char const *, int); |
199 | void (*genresult) (void *, unsigned char *); |
200 | int (*verresult) (void *, unsigned char const *); |
e5574168 |
201 | char *name; |
202 | int len; |
6c135243 |
203 | char *text_name; |
e5574168 |
204 | }; |
205 | |
b672f405 |
206 | struct ssh_hash { |
207 | void *(*init)(void); /* also allocates context */ |
208 | void (*bytes)(void *, void *, int); |
209 | void (*final)(void *, unsigned char *); /* also frees context */ |
210 | int hlen; /* output length in bytes */ |
c6daaa1a |
211 | char *text_name; |
b672f405 |
212 | }; |
213 | |
e5574168 |
214 | struct ssh_kex { |
d1aaf71d |
215 | char *name, *groupname; |
fae1a71b |
216 | enum { KEXTYPE_DH, KEXTYPE_RSA } main_type; |
217 | /* For DH */ |
218 | const unsigned char *pdata, *gdata; /* NULL means group exchange */ |
d1aaf71d |
219 | int plen, glen; |
b672f405 |
220 | const struct ssh_hash *hash; |
e5574168 |
221 | }; |
222 | |
34557659 |
223 | struct ssh_kexes { |
224 | int nkexes; |
225 | const struct ssh_kex *const *list; |
226 | }; |
227 | |
e055a386 |
228 | struct ssh_signkey { |
32874aea |
229 | void *(*newkey) (char *data, int len); |
230 | void (*freekey) (void *key); |
231 | char *(*fmtkey) (void *key); |
232 | unsigned char *(*public_blob) (void *key, int *len); |
233 | unsigned char *(*private_blob) (void *key, int *len); |
234 | void *(*createkey) (unsigned char *pub_blob, int pub_len, |
235 | unsigned char *priv_blob, int priv_len); |
236 | void *(*openssh_createkey) (unsigned char **blob, int *len); |
237 | int (*openssh_fmtkey) (void *key, unsigned char *blob, int len); |
47a6b94c |
238 | int (*pubkey_bits) (void *blob, int len); |
32874aea |
239 | char *(*fingerprint) (void *key); |
240 | int (*verifysig) (void *key, char *sig, int siglen, |
241 | char *data, int datalen); |
242 | unsigned char *(*sign) (void *key, char *data, int datalen, |
243 | int *siglen); |
e5574168 |
244 | char *name; |
32874aea |
245 | char *keytype; /* for host key cache */ |
e5574168 |
246 | }; |
247 | |
248 | struct ssh_compress { |
249 | char *name; |
5366aed8 |
250 | void *(*compress_init) (void); |
251 | void (*compress_cleanup) (void *); |
252 | int (*compress) (void *, unsigned char *block, int len, |
32874aea |
253 | unsigned char **outblock, int *outlen); |
5366aed8 |
254 | void *(*decompress_init) (void); |
255 | void (*decompress_cleanup) (void *); |
256 | int (*decompress) (void *, unsigned char *block, int len, |
32874aea |
257 | unsigned char **outblock, int *outlen); |
5366aed8 |
258 | int (*disable_compression) (void *); |
259 | char *text_name; |
374330e2 |
260 | }; |
261 | |
65a22376 |
262 | struct ssh2_userkey { |
263 | const struct ssh_signkey *alg; /* the key algorithm */ |
264 | void *data; /* the key data */ |
265 | char *comment; /* the key comment */ |
266 | }; |
267 | |
754c0df9 |
268 | /* The maximum length of any hash algorithm used in kex. (bytes) */ |
269 | #define SSH2_KEX_MAX_HASH_LEN (32) /* SHA-256 */ |
270 | |
65a22376 |
271 | extern const struct ssh_cipher ssh_3des; |
272 | extern const struct ssh_cipher ssh_des; |
273 | extern const struct ssh_cipher ssh_blowfish_ssh1; |
274 | extern const struct ssh2_ciphers ssh2_3des; |
0d7c43a6 |
275 | extern const struct ssh2_ciphers ssh2_des; |
65a22376 |
276 | extern const struct ssh2_ciphers ssh2_aes; |
277 | extern const struct ssh2_ciphers ssh2_blowfish; |
a2add208 |
278 | extern const struct ssh2_ciphers ssh2_arcfour; |
b672f405 |
279 | extern const struct ssh_hash ssh_sha1; |
062e5811 |
280 | extern const struct ssh_hash ssh_sha256; |
34557659 |
281 | extern const struct ssh_kexes ssh_diffiehellman_group1; |
282 | extern const struct ssh_kexes ssh_diffiehellman_group14; |
283 | extern const struct ssh_kexes ssh_diffiehellman_gex; |
fae1a71b |
284 | extern const struct ssh_kexes ssh_rsa_kex; |
65a22376 |
285 | extern const struct ssh_signkey ssh_dss; |
286 | extern const struct ssh_signkey ssh_rsa; |
1993f323 |
287 | extern const struct ssh_mac ssh_hmac_md5; |
288 | extern const struct ssh_mac ssh_hmac_sha1; |
289 | extern const struct ssh_mac ssh_hmac_sha1_buggy; |
6668a75e |
290 | extern const struct ssh_mac ssh_hmac_sha1_96; |
291 | extern const struct ssh_mac ssh_hmac_sha1_96_buggy; |
1993f323 |
292 | |
65a22376 |
293 | |
900a4ee6 |
294 | /* |
295 | * PuTTY version number formatted as an SSH version string. |
296 | */ |
297 | extern char sshver[]; |
298 | |
fd5e5847 |
299 | /* |
300 | * Gross hack: pscp will try to start SFTP but fall back to scp1 if |
301 | * that fails. This variable is the means by which scp.c can reach |
302 | * into the SSH code and find out which one it got. |
303 | */ |
51470298 |
304 | extern int ssh_fallback_cmd(void *handle); |
fd5e5847 |
305 | |
8f203108 |
306 | #ifndef MSCRYPTOAPI |
32874aea |
307 | void SHATransform(word32 * digest, word32 * data); |
8f203108 |
308 | #endif |
374330e2 |
309 | |
310 | int random_byte(void); |
311 | void random_add_noise(void *noise, int length); |
6e522441 |
312 | void random_add_heavynoise(void *noise, int length); |
c5e9c988 |
313 | |
cbe2d68f |
314 | void logevent(void *, const char *); |
51470298 |
315 | |
316 | /* Allocate and register a new channel for port forwarding */ |
317 | void *new_sock_channel(void *handle, Socket s); |
6b78788a |
318 | void ssh_send_port_open(void *channel, char *hostname, int port, char *org); |
e5574168 |
319 | |
322d09a8 |
320 | /* Exports from portfwd.c */ |
cbe2d68f |
321 | extern const char *pfd_newconnect(Socket * s, char *hostname, int port, |
05581745 |
322 | void *c, const Config *cfg, |
323 | int addressfamily); |
820ebe3b |
324 | /* desthost == NULL indicates dynamic (SOCKS) port forwarding */ |
cbe2d68f |
325 | extern const char *pfd_addforward(char *desthost, int destport, char *srcaddr, |
326 | int port, void *backhandle, |
05581745 |
327 | const Config *cfg, void **sockdata, |
328 | int address_family); |
322d09a8 |
329 | extern void pfd_close(Socket s); |
fda2feb1 |
330 | extern void pfd_terminate(void *sockdata); |
322d09a8 |
331 | extern int pfd_send(Socket s, char *data, int len); |
332 | extern void pfd_confirm(Socket s); |
333 | extern void pfd_unthrottle(Socket s); |
334 | extern void pfd_override_throttle(Socket s, int enable); |
335 | |
336 | /* Exports from x11fwd.c */ |
8def70c3 |
337 | enum { |
338 | X11_TRANS_IPV4 = 0, X11_TRANS_IPV6 = 6, X11_TRANS_UNIX = 256 |
339 | }; |
340 | struct X11Display { |
341 | /* Broken-down components of the display name itself */ |
342 | int unixdomain; |
343 | char *hostname; |
344 | int displaynum; |
345 | int screennum; |
346 | /* OSX sometimes replaces all the above with a full Unix-socket pathname */ |
347 | char *unixsocketpath; |
348 | |
349 | /* PuTTY networking SockAddr to connect to the display, and associated |
350 | * gubbins */ |
351 | SockAddr addr; |
352 | int port; |
353 | char *realhost; |
354 | |
355 | /* Auth details we invented for the virtual display on the SSH server. */ |
356 | int remoteauthproto; |
357 | unsigned char *remoteauthdata; |
358 | int remoteauthdatalen; |
359 | char *remoteauthprotoname; |
360 | char *remoteauthdatastring; |
361 | |
362 | /* Our local auth details for talking to the real X display. */ |
363 | int localauthproto; |
364 | unsigned char *localauthdata; |
365 | int localauthdatalen; |
366 | |
367 | /* |
368 | * Used inside x11fwd.c to remember recently seen |
369 | * XDM-AUTHORIZATION-1 strings, to avoid replay attacks. |
370 | */ |
371 | tree234 *xdmseen; |
372 | }; |
373 | /* |
374 | * x11_setup_display() parses the display variable and fills in an |
375 | * X11Display structure. Some remote auth details are invented; |
376 | * the supplied authtype parameter configures the preferred |
377 | * authorisation protocol to use at the remote end. The local auth |
378 | * details are looked up by calling platform_get_x11_auth. |
379 | */ |
380 | extern struct X11Display *x11_setup_display(char *display, int authtype, |
381 | const Config *); |
382 | void x11_free_display(struct X11Display *disp); |
383 | extern const char *x11_init(Socket *, struct X11Display *, void *, |
384 | const char *, int, const Config *); |
322d09a8 |
385 | extern void x11_close(Socket); |
386 | extern int x11_send(Socket, char *, int); |
322d09a8 |
387 | extern void x11_unthrottle(Socket s); |
388 | extern void x11_override_throttle(Socket s, int enable); |
fc0f17db |
389 | char *x11_display(const char *display); |
fc0f17db |
390 | /* Platform-dependent X11 functions */ |
8def70c3 |
391 | extern void platform_get_x11_auth(struct X11Display *display, |
392 | const Config *); |
393 | /* examine a mostly-filled-in X11Display and fill in localauth* */ |
394 | extern const int platform_uses_x11_unix_by_default; |
395 | /* choose default X transport in the absence of a specified one */ |
396 | SockAddr platform_get_x11_unix_address(const char *path, int displaynum); |
397 | /* make up a SockAddr naming the address for displaynum */ |
46ed7b64 |
398 | char *platform_get_x_display(void); |
8def70c3 |
399 | /* allocated local X display string, if any */ |
400 | /* Callbacks in x11.c usable _by_ platform X11 functions */ |
401 | /* |
402 | * This function does the job of platform_get_x11_auth, provided |
403 | * it is told where to find a normally formatted .Xauthority file: |
404 | * it opens that file, parses it to find an auth record which |
405 | * matches the display details in "display", and fills in the |
406 | * localauth fields. |
407 | * |
408 | * It is expected that most implementations of |
409 | * platform_get_x11_auth() will work by finding their system's |
410 | * .Xauthority file, adjusting the display details if necessary |
411 | * for local oddities like Unix-domain socket transport, and |
412 | * calling this function to do the rest of the work. |
413 | */ |
414 | void x11_get_auth_from_authfile(struct X11Display *display, |
415 | const char *authfilename); |
9bee6826 |
416 | |
7cca0d81 |
417 | Bignum copybn(Bignum b); |
3709bfe9 |
418 | Bignum bn_power_2(int n); |
419 | void bn_restore_invariant(Bignum b); |
5c72ca61 |
420 | Bignum bignum_from_long(unsigned long n); |
e5574168 |
421 | void freebn(Bignum b); |
59600f67 |
422 | Bignum modpow(Bignum base, Bignum exp, Bignum mod); |
423 | Bignum modmul(Bignum a, Bignum b, Bignum mod); |
7cca0d81 |
424 | void decbn(Bignum n); |
425 | extern Bignum Zero, One; |
27cd7fc2 |
426 | Bignum bignum_from_bytes(const unsigned char *data, int nbytes); |
0016d70b |
427 | int ssh1_read_bignum(const unsigned char *data, int len, Bignum * result); |
ddecd643 |
428 | int bignum_bitcount(Bignum bn); |
5c58ad2d |
429 | int ssh1_bignum_length(Bignum bn); |
260f3dec |
430 | int ssh2_bignum_length(Bignum bn); |
5c58ad2d |
431 | int bignum_byte(Bignum bn, int i); |
9400cf6f |
432 | int bignum_bit(Bignum bn, int i); |
433 | void bignum_set_bit(Bignum bn, int i, int value); |
5c58ad2d |
434 | int ssh1_write_bignum(void *data, Bignum bn); |
9400cf6f |
435 | Bignum biggcd(Bignum a, Bignum b); |
436 | unsigned short bignum_mod_short(Bignum number, unsigned short modulus); |
437 | Bignum bignum_add_long(Bignum number, unsigned long addend); |
438 | Bignum bigmul(Bignum a, Bignum b); |
5c72ca61 |
439 | Bignum bigmuladd(Bignum a, Bignum b, Bignum addend); |
440 | Bignum bigdiv(Bignum a, Bignum b); |
441 | Bignum bigmod(Bignum a, Bignum b); |
9400cf6f |
442 | Bignum modinv(Bignum number, Bignum modulus); |
3709bfe9 |
443 | Bignum bignum_bitmask(Bignum number); |
9400cf6f |
444 | Bignum bignum_rshift(Bignum number, int shift); |
8c3cd914 |
445 | int bignum_cmp(Bignum a, Bignum b); |
6e522441 |
446 | char *bignum_decimal(Bignum x); |
e5574168 |
447 | |
a3412f52 |
448 | #ifdef DEBUG |
449 | void diagbn(char *prefix, Bignum md); |
450 | #endif |
451 | |
d1aaf71d |
452 | void *dh_setup_group(const struct ssh_kex *kex); |
453 | void *dh_setup_gex(Bignum pval, Bignum gval); |
27cd7fc2 |
454 | void dh_cleanup(void *); |
455 | Bignum dh_create_e(void *, int nbits); |
456 | Bignum dh_find_K(void *, Bignum f); |
7cca0d81 |
457 | |
9a30e26b |
458 | int loadrsakey(const Filename *filename, struct RSAKey *key, |
222d54dc |
459 | char *passphrase, const char **errorstr); |
9a30e26b |
460 | int rsakey_encrypted(const Filename *filename, char **comment); |
222d54dc |
461 | int rsakey_pubblob(const Filename *filename, void **blob, int *bloblen, |
4bcf919e |
462 | char **commentptr, const char **errorstr); |
7cca0d81 |
463 | |
9a30e26b |
464 | int saversakey(const Filename *filename, struct RSAKey *key, char *passphrase); |
65a22376 |
465 | |
df3c4460 |
466 | extern int base64_decode_atom(char *atom, unsigned char *out); |
467 | extern int base64_lines(int datalen); |
468 | extern void base64_encode_atom(unsigned char *data, int n, char *out); |
469 | extern void base64_encode(FILE *fp, unsigned char *data, int datalen, int cpl); |
65a22376 |
470 | |
471 | /* ssh2_load_userkey can return this as an error */ |
472 | extern struct ssh2_userkey ssh2_wrong_passphrase; |
473 | #define SSH2_WRONG_PASSPHRASE (&ssh2_wrong_passphrase) |
474 | |
9a30e26b |
475 | int ssh2_userkey_encrypted(const Filename *filename, char **comment); |
476 | struct ssh2_userkey *ssh2_load_userkey(const Filename *filename, |
222d54dc |
477 | char *passphrase, const char **errorstr); |
8a9977e5 |
478 | unsigned char *ssh2_userkey_loadpub(const Filename *filename, char **algorithm, |
479 | int *pub_blob_len, char **commentptr, |
480 | const char **errorstr); |
9a30e26b |
481 | int ssh2_save_userkey(const Filename *filename, struct ssh2_userkey *key, |
32874aea |
482 | char *passphrase); |
47a6b94c |
483 | const struct ssh_signkey *find_pubkey_alg(const char *name); |
65a22376 |
484 | |
231ee168 |
485 | enum { |
486 | SSH_KEYTYPE_UNOPENABLE, |
487 | SSH_KEYTYPE_UNKNOWN, |
488 | SSH_KEYTYPE_SSH1, SSH_KEYTYPE_SSH2, |
489 | SSH_KEYTYPE_OPENSSH, SSH_KEYTYPE_SSHCOM |
490 | }; |
9a30e26b |
491 | int key_type(const Filename *filename); |
231ee168 |
492 | char *key_type_to_str(int type); |
6e522441 |
493 | |
9dda6459 |
494 | int import_possible(int type); |
495 | int import_target_type(int type); |
9a30e26b |
496 | int import_encrypted(const Filename *filename, int type, char **comment); |
497 | int import_ssh1(const Filename *filename, int type, |
1e87cce5 |
498 | struct RSAKey *key, char *passphrase, const char **errmsg_p); |
9a30e26b |
499 | struct ssh2_userkey *import_ssh2(const Filename *filename, int type, |
1e87cce5 |
500 | char *passphrase, const char **errmsg_p); |
9a30e26b |
501 | int export_ssh1(const Filename *filename, int type, |
502 | struct RSAKey *key, char *passphrase); |
503 | int export_ssh2(const Filename *filename, int type, |
4801c01c |
504 | struct ssh2_userkey *key, char *passphrase); |
9dda6459 |
505 | |
65a22376 |
506 | void des3_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len); |
507 | void des3_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len); |
9dda6459 |
508 | void des3_decrypt_pubkey_ossh(unsigned char *key, unsigned char *iv, |
509 | unsigned char *blk, int len); |
510 | void des3_encrypt_pubkey_ossh(unsigned char *key, unsigned char *iv, |
511 | unsigned char *blk, int len); |
32874aea |
512 | void aes256_encrypt_pubkey(unsigned char *key, unsigned char *blk, |
513 | int len); |
514 | void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk, |
515 | int len); |
9400cf6f |
516 | |
2f92b717 |
517 | void des_encrypt_xdmauth(unsigned char *key, unsigned char *blk, int len); |
b3ebaa28 |
518 | void des_decrypt_xdmauth(unsigned char *key, unsigned char *blk, int len); |
2f92b717 |
519 | |
9400cf6f |
520 | /* |
521 | * For progress updates in the key generation utility. |
522 | */ |
7c7f6893 |
523 | #define PROGFN_INITIALISE 1 |
524 | #define PROGFN_LIN_PHASE 2 |
525 | #define PROGFN_EXP_PHASE 3 |
526 | #define PROGFN_PHASE_EXTENT 4 |
527 | #define PROGFN_READY 5 |
528 | #define PROGFN_PROGRESS 6 |
5c72ca61 |
529 | typedef void (*progfn_t) (void *param, int action, int phase, int progress); |
9400cf6f |
530 | |
32874aea |
531 | int rsa_generate(struct RSAKey *key, int bits, progfn_t pfn, |
532 | void *pfnparam); |
5c72ca61 |
533 | int dsa_generate(struct dss_key *key, int bits, progfn_t pfn, |
534 | void *pfnparam); |
535 | Bignum primegen(int bits, int modulus, int residue, Bignum factor, |
536 | int phase, progfn_t pfn, void *pfnparam); |
4ba9b64b |
537 | |
d74d141c |
538 | |
4ba9b64b |
539 | /* |
540 | * zlib compression. |
541 | */ |
5366aed8 |
542 | void *zlib_compress_init(void); |
543 | void zlib_compress_cleanup(void *); |
544 | void *zlib_decompress_init(void); |
545 | void zlib_decompress_cleanup(void *); |
546 | int zlib_compress_block(void *, unsigned char *block, int len, |
4ba9b64b |
547 | unsigned char **outblock, int *outlen); |
5366aed8 |
548 | int zlib_decompress_block(void *, unsigned char *block, int len, |
4ba9b64b |
549 | unsigned char **outblock, int *outlen); |
1983e559 |
550 | |
551 | /* |
2e85c969 |
552 | * SSH-1 agent messages. |
1983e559 |
553 | */ |
554 | #define SSH1_AGENTC_REQUEST_RSA_IDENTITIES 1 |
555 | #define SSH1_AGENT_RSA_IDENTITIES_ANSWER 2 |
556 | #define SSH1_AGENTC_RSA_CHALLENGE 3 |
557 | #define SSH1_AGENT_RSA_RESPONSE 4 |
558 | #define SSH1_AGENTC_ADD_RSA_IDENTITY 7 |
559 | #define SSH1_AGENTC_REMOVE_RSA_IDENTITY 8 |
32874aea |
560 | #define SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 /* openssh private? */ |
1983e559 |
561 | |
562 | /* |
2e85c969 |
563 | * Messages common to SSH-1 and OpenSSH's SSH-2. |
1983e559 |
564 | */ |
565 | #define SSH_AGENT_FAILURE 5 |
566 | #define SSH_AGENT_SUCCESS 6 |
567 | |
568 | /* |
2e85c969 |
569 | * OpenSSH's SSH-2 agent messages. |
1983e559 |
570 | */ |
571 | #define SSH2_AGENTC_REQUEST_IDENTITIES 11 |
572 | #define SSH2_AGENT_IDENTITIES_ANSWER 12 |
573 | #define SSH2_AGENTC_SIGN_REQUEST 13 |
574 | #define SSH2_AGENT_SIGN_RESPONSE 14 |
575 | #define SSH2_AGENTC_ADD_IDENTITY 17 |
576 | #define SSH2_AGENTC_REMOVE_IDENTITY 18 |
577 | #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 |
7bedb13c |
578 | |
579 | /* |
2e85c969 |
580 | * Need this to warn about support for the original SSH-2 keyfile |
7bedb13c |
581 | * format. |
582 | */ |
583 | void old_keyfile_warning(void); |