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 int sshfwd_write(struct ssh_channel *c, char *, int); |
bc06669b |
13 | extern void sshfwd_write_eof(struct ssh_channel *c); |
c6b41791 |
14 | extern void sshfwd_unclean_close(struct ssh_channel *c); |
5471d09a |
15 | extern void sshfwd_unthrottle(struct ssh_channel *c, int bufsize); |
16 | |
e5574168 |
17 | /* |
18 | * Useful thing. |
19 | */ |
20 | #ifndef lenof |
21 | #define lenof(x) ( (sizeof((x))) / (sizeof(*(x)))) |
22 | #endif |
23 | |
bea1ef5f |
24 | #define SSH_CIPHER_IDEA 1 |
9697bfd2 |
25 | #define SSH_CIPHER_DES 2 |
bea1ef5f |
26 | #define SSH_CIPHER_3DES 3 |
27 | #define SSH_CIPHER_BLOWFISH 6 |
28 | |
e5574168 |
29 | #ifdef MSCRYPTOAPI |
30 | #define APIEXTRA 8 |
31 | #else |
32 | #define APIEXTRA 0 |
33 | #endif |
34 | |
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35 | #ifndef BIGNUM_INTERNAL |
36 | typedef void *Bignum; |
37 | #endif |
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38 | |
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39 | struct RSAKey { |
40 | int bits; |
41 | int bytes; |
8f203108 |
42 | #ifdef MSCRYPTOAPI |
43 | unsigned long exponent; |
44 | unsigned char *modulus; |
45 | #else |
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46 | Bignum modulus; |
47 | Bignum exponent; |
48 | Bignum private_exponent; |
9400cf6f |
49 | Bignum p; |
50 | Bignum q; |
51 | Bignum iqmp; |
65a22376 |
52 | #endif |
53 | char *comment; |
9400cf6f |
54 | }; |
55 | |
5c72ca61 |
56 | struct dss_key { |
57 | Bignum p, q, g, y, x; |
58 | }; |
59 | |
0016d70b |
60 | int makekey(unsigned char *data, int len, struct RSAKey *result, |
7cca0d81 |
61 | unsigned char **keystr, int order); |
0016d70b |
62 | int makeprivate(unsigned char *data, int len, struct RSAKey *result); |
63 | int rsaencrypt(unsigned char *data, int length, struct RSAKey *key); |
7cca0d81 |
64 | Bignum rsadecrypt(Bignum input, struct RSAKey *key); |
65 | void rsasign(unsigned char *data, int length, struct RSAKey *key); |
66 | void rsasanitise(struct RSAKey *key); |
374330e2 |
67 | int rsastr_len(struct RSAKey *key); |
68 | void rsastr_fmt(char *str, struct RSAKey *key); |
1c2a93c4 |
69 | void rsa_fingerprint(char *str, int len, struct RSAKey *key); |
014970c8 |
70 | int rsa_verify(struct RSAKey *key); |
3f2d010c |
71 | unsigned char *rsa_public_blob(struct RSAKey *key, int *len); |
0016d70b |
72 | int rsa_public_blob_len(void *data, int maxlen); |
5c58ad2d |
73 | void freersakey(struct RSAKey *key); |
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74 | |
b3d375b2 |
75 | #ifndef PUTTY_UINT32_DEFINED |
76 | /* This makes assumptions about the int type. */ |
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77 | typedef unsigned int uint32; |
b3d375b2 |
78 | #define PUTTY_UINT32_DEFINED |
79 | #endif |
80 | typedef uint32 word32; |
374330e2 |
81 | |
71bedafe |
82 | unsigned long crc32_compute(const void *s, size_t len); |
9a3a93a5 |
83 | unsigned long crc32_update(unsigned long crc_input, const void *s, size_t len); |
84 | |
85 | /* SSH CRC compensation attack detector */ |
0183b242 |
86 | void *crcda_make_context(void); |
87 | void crcda_free_context(void *handle); |
88 | int detect_attack(void *handle, unsigned char *buf, uint32 len, |
89 | unsigned char *IV); |
374330e2 |
90 | |
fae1a71b |
91 | /* |
92 | * SSH2 RSA key exchange functions |
93 | */ |
94 | struct ssh_hash; |
95 | void *ssh_rsakex_newkey(char *data, int len); |
96 | void ssh_rsakex_freekey(void *key); |
97 | int ssh_rsakex_klen(void *key); |
98 | void ssh_rsakex_encrypt(const struct ssh_hash *h, unsigned char *in, int inlen, |
99 | unsigned char *out, int outlen, |
100 | void *key); |
101 | |
48672163 |
102 | typedef struct { |
103 | uint32 h[4]; |
104 | } MD5_Core_State; |
105 | |
374330e2 |
106 | struct MD5Context { |
8f203108 |
107 | #ifdef MSCRYPTOAPI |
108 | unsigned long hHash; |
109 | #else |
48672163 |
110 | MD5_Core_State core; |
bb093ca7 |
111 | unsigned char block[64]; |
48672163 |
112 | int blkused; |
113 | uint32 lenhi, lenlo; |
8f203108 |
114 | #endif |
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115 | }; |
116 | |
117 | void MD5Init(struct MD5Context *context); |
118 | void MD5Update(struct MD5Context *context, unsigned char const *buf, |
32874aea |
119 | unsigned len); |
374330e2 |
120 | void MD5Final(unsigned char digest[16], struct MD5Context *context); |
f33ba69e |
121 | void MD5Simple(void const *p, unsigned len, unsigned char output[16]); |
122 | |
123 | void *hmacmd5_make_context(void); |
124 | void hmacmd5_free_context(void *handle); |
447f7a7b |
125 | void hmacmd5_key(void *handle, void const *key, int len); |
f33ba69e |
126 | void hmacmd5_do_hmac(void *handle, unsigned char const *blk, int len, |
127 | unsigned char *hmac); |
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128 | |
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129 | typedef struct { |
130 | uint32 h[5]; |
131 | unsigned char block[64]; |
132 | int blkused; |
133 | uint32 lenhi, lenlo; |
134 | } SHA_State; |
32874aea |
135 | void SHA_Init(SHA_State * s); |
136 | void SHA_Bytes(SHA_State * s, void *p, int len); |
137 | void SHA_Final(SHA_State * s, unsigned char *output); |
7cca0d81 |
138 | void SHA_Simple(void *p, int len, unsigned char *output); |
e5574168 |
139 | |
5c72ca61 |
140 | void hmac_sha1_simple(void *key, int keylen, void *data, int datalen, |
141 | unsigned char *output); |
062e5811 |
142 | typedef struct { |
143 | uint32 h[8]; |
144 | unsigned char block[64]; |
145 | int blkused; |
146 | uint32 lenhi, lenlo; |
147 | } SHA256_State; |
148 | void SHA256_Init(SHA256_State * s); |
149 | void SHA256_Bytes(SHA256_State * s, const void *p, int len); |
150 | void SHA256_Final(SHA256_State * s, unsigned char *output); |
151 | void SHA256_Simple(const void *p, int len, unsigned char *output); |
5c72ca61 |
152 | |
153 | typedef struct { |
154 | uint64 h[8]; |
155 | unsigned char block[128]; |
156 | int blkused; |
157 | uint32 len[4]; |
158 | } SHA512_State; |
159 | void SHA512_Init(SHA512_State * s); |
160 | void SHA512_Bytes(SHA512_State * s, const void *p, int len); |
161 | void SHA512_Final(SHA512_State * s, unsigned char *output); |
162 | void SHA512_Simple(const void *p, int len, unsigned char *output); |
163 | |
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164 | struct ssh_cipher { |
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165 | void *(*make_context)(void); |
166 | void (*free_context)(void *); |
2e85c969 |
167 | void (*sesskey) (void *, unsigned char *key); /* for SSH-1 */ |
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168 | void (*encrypt) (void *, unsigned char *blk, int len); |
169 | void (*decrypt) (void *, unsigned char *blk, int len); |
0a3f1d48 |
170 | int blksize; |
371e569c |
171 | char *text_name; |
0a3f1d48 |
172 | }; |
173 | |
174 | struct ssh2_cipher { |
371e569c |
175 | void *(*make_context)(void); |
176 | void (*free_context)(void *); |
2e85c969 |
177 | void (*setiv) (void *, unsigned char *key); /* for SSH-2 */ |
178 | void (*setkey) (void *, unsigned char *key);/* for SSH-2 */ |
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179 | void (*encrypt) (void *, unsigned char *blk, int len); |
180 | void (*decrypt) (void *, unsigned char *blk, int len); |
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181 | char *name; |
182 | int blksize; |
d2a0e0be |
183 | int keylen; |
97ab28d7 |
184 | unsigned int flags; |
185 | #define SSH_CIPHER_IS_CBC 1 |
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186 | char *text_name; |
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187 | }; |
188 | |
0a3f1d48 |
189 | struct ssh2_ciphers { |
190 | int nciphers; |
65a22376 |
191 | const struct ssh2_cipher *const *list; |
0a3f1d48 |
192 | }; |
193 | |
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194 | struct ssh_mac { |
e0e1a00d |
195 | void *(*make_context)(void); |
196 | void (*free_context)(void *); |
197 | void (*setkey) (void *, unsigned char *key); |
9916cc1e |
198 | /* whole-packet operations */ |
e0e1a00d |
199 | void (*generate) (void *, unsigned char *blk, int len, unsigned long seq); |
200 | int (*verify) (void *, unsigned char *blk, int len, unsigned long seq); |
9916cc1e |
201 | /* partial-packet operations */ |
202 | void (*start) (void *); |
203 | void (*bytes) (void *, unsigned char const *, int); |
204 | void (*genresult) (void *, unsigned char *); |
205 | int (*verresult) (void *, unsigned char const *); |
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206 | char *name; |
207 | int len; |
6c135243 |
208 | char *text_name; |
e5574168 |
209 | }; |
210 | |
b672f405 |
211 | struct ssh_hash { |
212 | void *(*init)(void); /* also allocates context */ |
213 | void (*bytes)(void *, void *, int); |
214 | void (*final)(void *, unsigned char *); /* also frees context */ |
215 | int hlen; /* output length in bytes */ |
c6daaa1a |
216 | char *text_name; |
b672f405 |
217 | }; |
218 | |
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219 | struct ssh_kex { |
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220 | char *name, *groupname; |
fae1a71b |
221 | enum { KEXTYPE_DH, KEXTYPE_RSA } main_type; |
222 | /* For DH */ |
223 | const unsigned char *pdata, *gdata; /* NULL means group exchange */ |
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224 | int plen, glen; |
b672f405 |
225 | const struct ssh_hash *hash; |
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226 | }; |
227 | |
34557659 |
228 | struct ssh_kexes { |
229 | int nkexes; |
230 | const struct ssh_kex *const *list; |
231 | }; |
232 | |
e055a386 |
233 | struct ssh_signkey { |
32874aea |
234 | void *(*newkey) (char *data, int len); |
235 | void (*freekey) (void *key); |
236 | char *(*fmtkey) (void *key); |
237 | unsigned char *(*public_blob) (void *key, int *len); |
238 | unsigned char *(*private_blob) (void *key, int *len); |
239 | void *(*createkey) (unsigned char *pub_blob, int pub_len, |
240 | unsigned char *priv_blob, int priv_len); |
241 | void *(*openssh_createkey) (unsigned char **blob, int *len); |
242 | int (*openssh_fmtkey) (void *key, unsigned char *blob, int len); |
47a6b94c |
243 | int (*pubkey_bits) (void *blob, int len); |
32874aea |
244 | char *(*fingerprint) (void *key); |
245 | int (*verifysig) (void *key, char *sig, int siglen, |
246 | char *data, int datalen); |
247 | unsigned char *(*sign) (void *key, char *data, int datalen, |
248 | int *siglen); |
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249 | char *name; |
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250 | char *keytype; /* for host key cache */ |
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251 | }; |
252 | |
253 | struct ssh_compress { |
254 | char *name; |
ab18ccff |
255 | /* For zlib@openssh.com: if non-NULL, this name will be considered once |
256 | * userauth has completed successfully. */ |
257 | char *delayed_name; |
5366aed8 |
258 | void *(*compress_init) (void); |
259 | void (*compress_cleanup) (void *); |
260 | int (*compress) (void *, unsigned char *block, int len, |
32874aea |
261 | unsigned char **outblock, int *outlen); |
5366aed8 |
262 | void *(*decompress_init) (void); |
263 | void (*decompress_cleanup) (void *); |
264 | int (*decompress) (void *, unsigned char *block, int len, |
32874aea |
265 | unsigned char **outblock, int *outlen); |
5366aed8 |
266 | int (*disable_compression) (void *); |
267 | char *text_name; |
374330e2 |
268 | }; |
269 | |
65a22376 |
270 | struct ssh2_userkey { |
271 | const struct ssh_signkey *alg; /* the key algorithm */ |
272 | void *data; /* the key data */ |
273 | char *comment; /* the key comment */ |
274 | }; |
275 | |
754c0df9 |
276 | /* The maximum length of any hash algorithm used in kex. (bytes) */ |
277 | #define SSH2_KEX_MAX_HASH_LEN (32) /* SHA-256 */ |
278 | |
65a22376 |
279 | extern const struct ssh_cipher ssh_3des; |
280 | extern const struct ssh_cipher ssh_des; |
281 | extern const struct ssh_cipher ssh_blowfish_ssh1; |
282 | extern const struct ssh2_ciphers ssh2_3des; |
0d7c43a6 |
283 | extern const struct ssh2_ciphers ssh2_des; |
65a22376 |
284 | extern const struct ssh2_ciphers ssh2_aes; |
285 | extern const struct ssh2_ciphers ssh2_blowfish; |
a2add208 |
286 | extern const struct ssh2_ciphers ssh2_arcfour; |
b672f405 |
287 | extern const struct ssh_hash ssh_sha1; |
062e5811 |
288 | extern const struct ssh_hash ssh_sha256; |
34557659 |
289 | extern const struct ssh_kexes ssh_diffiehellman_group1; |
290 | extern const struct ssh_kexes ssh_diffiehellman_group14; |
291 | extern const struct ssh_kexes ssh_diffiehellman_gex; |
fae1a71b |
292 | extern const struct ssh_kexes ssh_rsa_kex; |
65a22376 |
293 | extern const struct ssh_signkey ssh_dss; |
294 | extern const struct ssh_signkey ssh_rsa; |
1993f323 |
295 | extern const struct ssh_mac ssh_hmac_md5; |
296 | extern const struct ssh_mac ssh_hmac_sha1; |
297 | extern const struct ssh_mac ssh_hmac_sha1_buggy; |
6668a75e |
298 | extern const struct ssh_mac ssh_hmac_sha1_96; |
299 | extern const struct ssh_mac ssh_hmac_sha1_96_buggy; |
1993f323 |
300 | |
06e09f43 |
301 | void *aes_make_context(void); |
302 | void aes_free_context(void *handle); |
303 | void aes128_key(void *handle, unsigned char *key); |
304 | void aes192_key(void *handle, unsigned char *key); |
305 | void aes256_key(void *handle, unsigned char *key); |
306 | void aes_iv(void *handle, unsigned char *iv); |
307 | void aes_ssh2_encrypt_blk(void *handle, unsigned char *blk, int len); |
308 | void aes_ssh2_decrypt_blk(void *handle, unsigned char *blk, int len); |
65a22376 |
309 | |
900a4ee6 |
310 | /* |
311 | * PuTTY version number formatted as an SSH version string. |
312 | */ |
313 | extern char sshver[]; |
314 | |
fd5e5847 |
315 | /* |
316 | * Gross hack: pscp will try to start SFTP but fall back to scp1 if |
317 | * that fails. This variable is the means by which scp.c can reach |
318 | * into the SSH code and find out which one it got. |
319 | */ |
51470298 |
320 | extern int ssh_fallback_cmd(void *handle); |
fd5e5847 |
321 | |
8f203108 |
322 | #ifndef MSCRYPTOAPI |
32874aea |
323 | void SHATransform(word32 * digest, word32 * data); |
8f203108 |
324 | #endif |
374330e2 |
325 | |
326 | int random_byte(void); |
327 | void random_add_noise(void *noise, int length); |
6e522441 |
328 | void random_add_heavynoise(void *noise, int length); |
c5e9c988 |
329 | |
cbe2d68f |
330 | void logevent(void *, const char *); |
51470298 |
331 | |
332 | /* Allocate and register a new channel for port forwarding */ |
333 | void *new_sock_channel(void *handle, Socket s); |
6b78788a |
334 | void ssh_send_port_open(void *channel, char *hostname, int port, char *org); |
e5574168 |
335 | |
322d09a8 |
336 | /* Exports from portfwd.c */ |
cbe2d68f |
337 | extern const char *pfd_newconnect(Socket * s, char *hostname, int port, |
4a693cfc |
338 | void *c, Conf *conf, int addressfamily); |
820ebe3b |
339 | /* desthost == NULL indicates dynamic (SOCKS) port forwarding */ |
cbe2d68f |
340 | extern const char *pfd_addforward(char *desthost, int destport, char *srcaddr, |
4a693cfc |
341 | int port, void *backhandle, Conf *conf, |
342 | void **sockdata, int address_family); |
322d09a8 |
343 | extern void pfd_close(Socket s); |
fda2feb1 |
344 | extern void pfd_terminate(void *sockdata); |
322d09a8 |
345 | extern int pfd_send(Socket s, char *data, int len); |
bc06669b |
346 | extern void pfd_send_eof(Socket s); |
322d09a8 |
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 */ |
8def70c3 |
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, |
4a693cfc |
396 | Conf *); |
8def70c3 |
397 | void x11_free_display(struct X11Display *disp); |
398 | extern const char *x11_init(Socket *, struct X11Display *, void *, |
4a693cfc |
399 | const char *, int, Conf *); |
322d09a8 |
400 | extern void x11_close(Socket); |
401 | extern int x11_send(Socket, char *, int); |
bc06669b |
402 | extern void x11_send_eof(Socket s); |
322d09a8 |
403 | extern void x11_unthrottle(Socket s); |
404 | extern void x11_override_throttle(Socket s, int enable); |
fc0f17db |
405 | char *x11_display(const char *display); |
fc0f17db |
406 | /* Platform-dependent X11 functions */ |
4a693cfc |
407 | extern void platform_get_x11_auth(struct X11Display *display, Conf *); |
8def70c3 |
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 */ |
46ed7b64 |
413 | char *platform_get_x_display(void); |
8def70c3 |
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); |
9bee6826 |
431 | |
7cca0d81 |
432 | Bignum copybn(Bignum b); |
3709bfe9 |
433 | Bignum bn_power_2(int n); |
434 | void bn_restore_invariant(Bignum b); |
5c72ca61 |
435 | Bignum bignum_from_long(unsigned long n); |
e5574168 |
436 | void freebn(Bignum b); |
59600f67 |
437 | Bignum modpow(Bignum base, Bignum exp, Bignum mod); |
438 | Bignum modmul(Bignum a, Bignum b, Bignum mod); |
7cca0d81 |
439 | void decbn(Bignum n); |
440 | extern Bignum Zero, One; |
27cd7fc2 |
441 | Bignum bignum_from_bytes(const unsigned char *data, int nbytes); |
0016d70b |
442 | int ssh1_read_bignum(const unsigned char *data, int len, Bignum * result); |
ddecd643 |
443 | int bignum_bitcount(Bignum bn); |
5c58ad2d |
444 | int ssh1_bignum_length(Bignum bn); |
260f3dec |
445 | int ssh2_bignum_length(Bignum bn); |
5c58ad2d |
446 | int bignum_byte(Bignum bn, int i); |
9400cf6f |
447 | int bignum_bit(Bignum bn, int i); |
448 | void bignum_set_bit(Bignum bn, int i, int value); |
5c58ad2d |
449 | int ssh1_write_bignum(void *data, Bignum bn); |
9400cf6f |
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); |
d737853b |
453 | Bignum bigadd(Bignum a, Bignum b); |
454 | Bignum bigsub(Bignum a, Bignum b); |
9400cf6f |
455 | Bignum bigmul(Bignum a, Bignum b); |
5c72ca61 |
456 | Bignum bigmuladd(Bignum a, Bignum b, Bignum addend); |
457 | Bignum bigdiv(Bignum a, Bignum b); |
458 | Bignum bigmod(Bignum a, Bignum b); |
9400cf6f |
459 | Bignum modinv(Bignum number, Bignum modulus); |
3709bfe9 |
460 | Bignum bignum_bitmask(Bignum number); |
9400cf6f |
461 | Bignum bignum_rshift(Bignum number, int shift); |
8c3cd914 |
462 | int bignum_cmp(Bignum a, Bignum b); |
6e522441 |
463 | char *bignum_decimal(Bignum x); |
e5574168 |
464 | |
a3412f52 |
465 | #ifdef DEBUG |
466 | void diagbn(char *prefix, Bignum md); |
467 | #endif |
468 | |
d1aaf71d |
469 | void *dh_setup_group(const struct ssh_kex *kex); |
470 | void *dh_setup_gex(Bignum pval, Bignum gval); |
27cd7fc2 |
471 | void dh_cleanup(void *); |
472 | Bignum dh_create_e(void *, int nbits); |
473 | Bignum dh_find_K(void *, Bignum f); |
7cca0d81 |
474 | |
9a30e26b |
475 | int loadrsakey(const Filename *filename, struct RSAKey *key, |
222d54dc |
476 | char *passphrase, const char **errorstr); |
9a30e26b |
477 | int rsakey_encrypted(const Filename *filename, char **comment); |
222d54dc |
478 | int rsakey_pubblob(const Filename *filename, void **blob, int *bloblen, |
4bcf919e |
479 | char **commentptr, const char **errorstr); |
7cca0d81 |
480 | |
9a30e26b |
481 | int saversakey(const Filename *filename, struct RSAKey *key, char *passphrase); |
65a22376 |
482 | |
df3c4460 |
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); |
65a22376 |
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 | |
9a30e26b |
492 | int ssh2_userkey_encrypted(const Filename *filename, char **comment); |
493 | struct ssh2_userkey *ssh2_load_userkey(const Filename *filename, |
222d54dc |
494 | char *passphrase, const char **errorstr); |
8a9977e5 |
495 | unsigned char *ssh2_userkey_loadpub(const Filename *filename, char **algorithm, |
496 | int *pub_blob_len, char **commentptr, |
497 | const char **errorstr); |
9a30e26b |
498 | int ssh2_save_userkey(const Filename *filename, struct ssh2_userkey *key, |
32874aea |
499 | char *passphrase); |
47a6b94c |
500 | const struct ssh_signkey *find_pubkey_alg(const char *name); |
65a22376 |
501 | |
231ee168 |
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 | }; |
9a30e26b |
508 | int key_type(const Filename *filename); |
231ee168 |
509 | char *key_type_to_str(int type); |
6e522441 |
510 | |
9dda6459 |
511 | int import_possible(int type); |
512 | int import_target_type(int type); |
9a30e26b |
513 | int import_encrypted(const Filename *filename, int type, char **comment); |
514 | int import_ssh1(const Filename *filename, int type, |
1e87cce5 |
515 | struct RSAKey *key, char *passphrase, const char **errmsg_p); |
9a30e26b |
516 | struct ssh2_userkey *import_ssh2(const Filename *filename, int type, |
1e87cce5 |
517 | char *passphrase, const char **errmsg_p); |
9a30e26b |
518 | int export_ssh1(const Filename *filename, int type, |
519 | struct RSAKey *key, char *passphrase); |
520 | int export_ssh2(const Filename *filename, int type, |
4801c01c |
521 | struct ssh2_userkey *key, char *passphrase); |
9dda6459 |
522 | |
65a22376 |
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); |
9dda6459 |
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); |
32874aea |
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); |
9400cf6f |
533 | |
2f92b717 |
534 | void des_encrypt_xdmauth(unsigned char *key, unsigned char *blk, int len); |
b3ebaa28 |
535 | void des_decrypt_xdmauth(unsigned char *key, unsigned char *blk, int len); |
2f92b717 |
536 | |
9400cf6f |
537 | /* |
538 | * For progress updates in the key generation utility. |
539 | */ |
7c7f6893 |
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 |
5c72ca61 |
546 | typedef void (*progfn_t) (void *param, int action, int phase, int progress); |
9400cf6f |
547 | |
32874aea |
548 | int rsa_generate(struct RSAKey *key, int bits, progfn_t pfn, |
549 | void *pfnparam); |
5c72ca61 |
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, |
79dae043 |
553 | int phase, progfn_t pfn, void *pfnparam, unsigned firstbits); |
554 | void invent_firstbits(unsigned *one, unsigned *two); |
4ba9b64b |
555 | |
d74d141c |
556 | |
4ba9b64b |
557 | /* |
558 | * zlib compression. |
559 | */ |
5366aed8 |
560 | void *zlib_compress_init(void); |
561 | void zlib_compress_cleanup(void *); |
562 | void *zlib_decompress_init(void); |
563 | void zlib_decompress_cleanup(void *); |
564 | int zlib_compress_block(void *, unsigned char *block, int len, |
4ba9b64b |
565 | unsigned char **outblock, int *outlen); |
5366aed8 |
566 | int zlib_decompress_block(void *, unsigned char *block, int len, |
4ba9b64b |
567 | unsigned char **outblock, int *outlen); |
1983e559 |
568 | |
569 | /* |
2e85c969 |
570 | * SSH-1 agent messages. |
1983e559 |
571 | */ |
572 | #define SSH1_AGENTC_REQUEST_RSA_IDENTITIES 1 |
573 | #define SSH1_AGENT_RSA_IDENTITIES_ANSWER 2 |
574 | #define SSH1_AGENTC_RSA_CHALLENGE 3 |
575 | #define SSH1_AGENT_RSA_RESPONSE 4 |
576 | #define SSH1_AGENTC_ADD_RSA_IDENTITY 7 |
577 | #define SSH1_AGENTC_REMOVE_RSA_IDENTITY 8 |
32874aea |
578 | #define SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 /* openssh private? */ |
1983e559 |
579 | |
580 | /* |
2e85c969 |
581 | * Messages common to SSH-1 and OpenSSH's SSH-2. |
1983e559 |
582 | */ |
583 | #define SSH_AGENT_FAILURE 5 |
584 | #define SSH_AGENT_SUCCESS 6 |
585 | |
586 | /* |
2e85c969 |
587 | * OpenSSH's SSH-2 agent messages. |
1983e559 |
588 | */ |
589 | #define SSH2_AGENTC_REQUEST_IDENTITIES 11 |
590 | #define SSH2_AGENT_IDENTITIES_ANSWER 12 |
591 | #define SSH2_AGENTC_SIGN_REQUEST 13 |
592 | #define SSH2_AGENT_SIGN_RESPONSE 14 |
593 | #define SSH2_AGENTC_ADD_IDENTITY 17 |
594 | #define SSH2_AGENTC_REMOVE_IDENTITY 18 |
595 | #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 |
7bedb13c |
596 | |
597 | /* |
2e85c969 |
598 | * Need this to warn about support for the original SSH-2 keyfile |
7bedb13c |
599 | * format. |
600 | */ |
601 | void old_keyfile_warning(void); |