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826f3a39 | 1 | /* |
2 | * Copyright 2002 Niels Provos <provos@citi.umich.edu> | |
3 | * Copyright 2002 Markus Friedl <markus@openbsd.org> | |
4 | * All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * 2. Redistributions in binary form must reproduce the above copyright | |
12 | * notice, this list of conditions and the following disclaimer in the | |
13 | * documentation and/or other materials provided with the distribution. | |
14 | * | |
15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
25 | */ | |
26 | ||
27 | #include "includes.h" | |
bfe49944 | 28 | RCSID("$OpenBSD: monitor_wrap.c,v 1.24 2003/04/01 10:22:21 markus Exp $"); |
826f3a39 | 29 | |
30 | #include <openssl/bn.h> | |
31 | #include <openssl/dh.h> | |
32 | ||
33 | #include "ssh.h" | |
34 | #include "dh.h" | |
35 | #include "kex.h" | |
36 | #include "auth.h" | |
bfe49944 | 37 | #include "auth-options.h" |
826f3a39 | 38 | #include "buffer.h" |
39 | #include "bufaux.h" | |
40 | #include "packet.h" | |
41 | #include "mac.h" | |
42 | #include "log.h" | |
43 | #include "zlib.h" | |
44 | #include "monitor.h" | |
45 | #include "monitor_wrap.h" | |
46 | #include "xmalloc.h" | |
47 | #include "atomicio.h" | |
48 | #include "monitor_fdpass.h" | |
49 | #include "getput.h" | |
50 | ||
51 | #include "auth.h" | |
52 | #include "channels.h" | |
53 | #include "session.h" | |
54 | ||
b59afbfe | 55 | #ifdef GSSAPI |
56 | #include "ssh-gss.h" | |
57 | #endif | |
58 | ||
826f3a39 | 59 | /* Imports */ |
60 | extern int compat20; | |
61 | extern Newkeys *newkeys[]; | |
62 | extern z_stream incoming_stream; | |
63 | extern z_stream outgoing_stream; | |
64 | extern struct monitor *pmonitor; | |
65 | extern Buffer input, output; | |
66 | ||
67 | void | |
68 | mm_request_send(int socket, enum monitor_reqtype type, Buffer *m) | |
69 | { | |
826f3a39 | 70 | u_int mlen = buffer_len(m); |
d03f4262 | 71 | u_char buf[5]; |
826f3a39 | 72 | |
44a053a3 | 73 | debug3("%s entering: type %d", __func__, type); |
826f3a39 | 74 | |
75 | PUT_32BIT(buf, mlen + 1); | |
44a053a3 | 76 | buf[4] = (u_char) type; /* 1st byte of payload is mesg-type */ |
826f3a39 | 77 | if (atomicio(write, socket, buf, sizeof(buf)) != sizeof(buf)) |
44a053a3 | 78 | fatal("%s: write", __func__); |
826f3a39 | 79 | if (atomicio(write, socket, buffer_ptr(m), mlen) != mlen) |
44a053a3 | 80 | fatal("%s: write", __func__); |
826f3a39 | 81 | } |
82 | ||
83 | void | |
84 | mm_request_receive(int socket, Buffer *m) | |
85 | { | |
86 | u_char buf[4]; | |
826f3a39 | 87 | u_int msg_len; |
d03f4262 | 88 | ssize_t res; |
826f3a39 | 89 | |
44a053a3 | 90 | debug3("%s entering", __func__); |
826f3a39 | 91 | |
92 | res = atomicio(read, socket, buf, sizeof(buf)); | |
93 | if (res != sizeof(buf)) { | |
94 | if (res == 0) | |
95 | fatal_cleanup(); | |
44a053a3 | 96 | fatal("%s: read: %ld", __func__, (long)res); |
826f3a39 | 97 | } |
98 | msg_len = GET_32BIT(buf); | |
99 | if (msg_len > 256 * 1024) | |
44a053a3 | 100 | fatal("%s: read: bad msg_len %d", __func__, msg_len); |
826f3a39 | 101 | buffer_clear(m); |
102 | buffer_append_space(m, msg_len); | |
103 | res = atomicio(read, socket, buffer_ptr(m), msg_len); | |
104 | if (res != msg_len) | |
44a053a3 | 105 | fatal("%s: read: %ld != msg_len", __func__, (long)res); |
826f3a39 | 106 | } |
107 | ||
108 | void | |
109 | mm_request_receive_expect(int socket, enum monitor_reqtype type, Buffer *m) | |
110 | { | |
111 | u_char rtype; | |
112 | ||
44a053a3 | 113 | debug3("%s entering: type %d", __func__, type); |
826f3a39 | 114 | |
115 | mm_request_receive(socket, m); | |
116 | rtype = buffer_get_char(m); | |
117 | if (rtype != type) | |
44a053a3 | 118 | fatal("%s: read: rtype %d != type %d", __func__, |
826f3a39 | 119 | rtype, type); |
120 | } | |
121 | ||
122 | DH * | |
123 | mm_choose_dh(int min, int nbits, int max) | |
124 | { | |
125 | BIGNUM *p, *g; | |
126 | int success = 0; | |
127 | Buffer m; | |
128 | ||
129 | buffer_init(&m); | |
130 | buffer_put_int(&m, min); | |
131 | buffer_put_int(&m, nbits); | |
132 | buffer_put_int(&m, max); | |
133 | ||
134 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_MODULI, &m); | |
135 | ||
44a053a3 | 136 | debug3("%s: waiting for MONITOR_ANS_MODULI", __func__); |
826f3a39 | 137 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_MODULI, &m); |
138 | ||
139 | success = buffer_get_char(&m); | |
140 | if (success == 0) | |
44a053a3 | 141 | fatal("%s: MONITOR_ANS_MODULI failed", __func__); |
826f3a39 | 142 | |
143 | if ((p = BN_new()) == NULL) | |
44a053a3 | 144 | fatal("%s: BN_new failed", __func__); |
826f3a39 | 145 | if ((g = BN_new()) == NULL) |
44a053a3 | 146 | fatal("%s: BN_new failed", __func__); |
826f3a39 | 147 | buffer_get_bignum2(&m, p); |
148 | buffer_get_bignum2(&m, g); | |
149 | ||
44a053a3 | 150 | debug3("%s: remaining %d", __func__, buffer_len(&m)); |
826f3a39 | 151 | buffer_free(&m); |
152 | ||
153 | return (dh_new_group(g, p)); | |
154 | } | |
155 | ||
156 | int | |
157 | mm_key_sign(Key *key, u_char **sigp, u_int *lenp, u_char *data, u_int datalen) | |
158 | { | |
159 | Kex *kex = *pmonitor->m_pkex; | |
160 | Buffer m; | |
161 | ||
44a053a3 | 162 | debug3("%s entering", __func__); |
826f3a39 | 163 | |
164 | buffer_init(&m); | |
165 | buffer_put_int(&m, kex->host_key_index(key)); | |
166 | buffer_put_string(&m, data, datalen); | |
167 | ||
168 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SIGN, &m); | |
169 | ||
44a053a3 | 170 | debug3("%s: waiting for MONITOR_ANS_SIGN", __func__); |
826f3a39 | 171 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SIGN, &m); |
172 | *sigp = buffer_get_string(&m, lenp); | |
173 | buffer_free(&m); | |
174 | ||
175 | return (0); | |
176 | } | |
177 | ||
178 | struct passwd * | |
179 | mm_getpwnamallow(const char *login) | |
180 | { | |
181 | Buffer m; | |
182 | struct passwd *pw; | |
183 | u_int pwlen; | |
184 | ||
44a053a3 | 185 | debug3("%s entering", __func__); |
826f3a39 | 186 | |
187 | buffer_init(&m); | |
188 | buffer_put_cstring(&m, login); | |
189 | ||
190 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PWNAM, &m); | |
191 | ||
44a053a3 | 192 | debug3("%s: waiting for MONITOR_ANS_PWNAM", __func__); |
826f3a39 | 193 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_PWNAM, &m); |
194 | ||
195 | if (buffer_get_char(&m) == 0) { | |
196 | buffer_free(&m); | |
197 | return (NULL); | |
198 | } | |
199 | pw = buffer_get_string(&m, &pwlen); | |
200 | if (pwlen != sizeof(struct passwd)) | |
44a053a3 | 201 | fatal("%s: struct passwd size mismatch", __func__); |
826f3a39 | 202 | pw->pw_name = buffer_get_string(&m, NULL); |
203 | pw->pw_passwd = buffer_get_string(&m, NULL); | |
204 | pw->pw_gecos = buffer_get_string(&m, NULL); | |
205 | #ifdef HAVE_PW_CLASS_IN_PASSWD | |
206 | pw->pw_class = buffer_get_string(&m, NULL); | |
207 | #endif | |
208 | pw->pw_dir = buffer_get_string(&m, NULL); | |
209 | pw->pw_shell = buffer_get_string(&m, NULL); | |
210 | buffer_free(&m); | |
211 | ||
212 | return (pw); | |
213 | } | |
214 | ||
d03f4262 | 215 | char *mm_auth2_read_banner(void) |
826f3a39 | 216 | { |
217 | Buffer m; | |
218 | char *banner; | |
219 | ||
44a053a3 | 220 | debug3("%s entering", __func__); |
826f3a39 | 221 | |
222 | buffer_init(&m); | |
223 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTH2_READ_BANNER, &m); | |
224 | buffer_clear(&m); | |
225 | ||
226 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_AUTH2_READ_BANNER, &m); | |
227 | banner = buffer_get_string(&m, NULL); | |
228 | buffer_free(&m); | |
44a053a3 | 229 | |
826f3a39 | 230 | return (banner); |
231 | } | |
232 | ||
233 | /* Inform the privileged process about service and style */ | |
234 | ||
235 | void | |
236 | mm_inform_authserv(char *service, char *style) | |
237 | { | |
238 | Buffer m; | |
239 | ||
44a053a3 | 240 | debug3("%s entering", __func__); |
826f3a39 | 241 | |
242 | buffer_init(&m); | |
243 | buffer_put_cstring(&m, service); | |
244 | buffer_put_cstring(&m, style ? style : ""); | |
245 | ||
246 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHSERV, &m); | |
247 | ||
248 | buffer_free(&m); | |
249 | } | |
250 | ||
251 | /* Do the password authentication */ | |
252 | int | |
253 | mm_auth_password(Authctxt *authctxt, char *password) | |
254 | { | |
255 | Buffer m; | |
256 | int authenticated = 0; | |
257 | ||
44a053a3 | 258 | debug3("%s entering", __func__); |
826f3a39 | 259 | |
260 | buffer_init(&m); | |
261 | buffer_put_cstring(&m, password); | |
262 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHPASSWORD, &m); | |
263 | ||
44a053a3 | 264 | debug3("%s: waiting for MONITOR_ANS_AUTHPASSWORD", __func__); |
826f3a39 | 265 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_AUTHPASSWORD, &m); |
266 | ||
267 | authenticated = buffer_get_int(&m); | |
268 | ||
269 | buffer_free(&m); | |
270 | ||
271 | debug3("%s: user %sauthenticated", | |
44a053a3 | 272 | __func__, authenticated ? "" : "not "); |
826f3a39 | 273 | return (authenticated); |
274 | } | |
275 | ||
276 | int | |
277 | mm_user_key_allowed(struct passwd *pw, Key *key) | |
278 | { | |
279 | return (mm_key_allowed(MM_USERKEY, NULL, NULL, key)); | |
280 | } | |
281 | ||
282 | int | |
283 | mm_hostbased_key_allowed(struct passwd *pw, char *user, char *host, | |
284 | Key *key) | |
285 | { | |
286 | return (mm_key_allowed(MM_HOSTKEY, user, host, key)); | |
287 | } | |
288 | ||
289 | int | |
290 | mm_auth_rhosts_rsa_key_allowed(struct passwd *pw, char *user, | |
291 | char *host, Key *key) | |
292 | { | |
293 | int ret; | |
294 | ||
295 | key->type = KEY_RSA; /* XXX hack for key_to_blob */ | |
296 | ret = mm_key_allowed(MM_RSAHOSTKEY, user, host, key); | |
297 | key->type = KEY_RSA1; | |
298 | return (ret); | |
299 | } | |
300 | ||
301 | static void | |
302 | mm_send_debug(Buffer *m) | |
303 | { | |
304 | char *msg; | |
305 | ||
306 | while (buffer_len(m)) { | |
307 | msg = buffer_get_string(m, NULL); | |
44a053a3 | 308 | debug3("%s: Sending debug: %s", __func__, msg); |
826f3a39 | 309 | packet_send_debug("%s", msg); |
310 | xfree(msg); | |
311 | } | |
312 | } | |
313 | ||
314 | int | |
315 | mm_key_allowed(enum mm_keytype type, char *user, char *host, Key *key) | |
316 | { | |
317 | Buffer m; | |
318 | u_char *blob; | |
319 | u_int len; | |
bfe49944 | 320 | int allowed = 0, have_forced = 0; |
826f3a39 | 321 | |
44a053a3 | 322 | debug3("%s entering", __func__); |
826f3a39 | 323 | |
324 | /* Convert the key to a blob and the pass it over */ | |
325 | if (!key_to_blob(key, &blob, &len)) | |
326 | return (0); | |
327 | ||
328 | buffer_init(&m); | |
329 | buffer_put_int(&m, type); | |
330 | buffer_put_cstring(&m, user ? user : ""); | |
331 | buffer_put_cstring(&m, host ? host : ""); | |
332 | buffer_put_string(&m, blob, len); | |
333 | xfree(blob); | |
334 | ||
335 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYALLOWED, &m); | |
336 | ||
44a053a3 | 337 | debug3("%s: waiting for MONITOR_ANS_KEYALLOWED", __func__); |
826f3a39 | 338 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KEYALLOWED, &m); |
339 | ||
340 | allowed = buffer_get_int(&m); | |
341 | ||
bfe49944 | 342 | /* fake forced command */ |
343 | auth_clear_options(); | |
344 | have_forced = buffer_get_int(&m); | |
345 | forced_command = have_forced ? xstrdup("true") : NULL; | |
346 | ||
826f3a39 | 347 | /* Send potential debug messages */ |
348 | mm_send_debug(&m); | |
349 | ||
350 | buffer_free(&m); | |
351 | ||
352 | return (allowed); | |
353 | } | |
354 | ||
355 | /* | |
356 | * This key verify needs to send the key type along, because the | |
357 | * privileged parent makes the decision if the key is allowed | |
358 | * for authentication. | |
359 | */ | |
360 | ||
361 | int | |
362 | mm_key_verify(Key *key, u_char *sig, u_int siglen, u_char *data, u_int datalen) | |
363 | { | |
364 | Buffer m; | |
365 | u_char *blob; | |
366 | u_int len; | |
367 | int verified = 0; | |
368 | ||
44a053a3 | 369 | debug3("%s entering", __func__); |
826f3a39 | 370 | |
371 | /* Convert the key to a blob and the pass it over */ | |
372 | if (!key_to_blob(key, &blob, &len)) | |
373 | return (0); | |
374 | ||
375 | buffer_init(&m); | |
376 | buffer_put_string(&m, blob, len); | |
377 | buffer_put_string(&m, sig, siglen); | |
378 | buffer_put_string(&m, data, datalen); | |
379 | xfree(blob); | |
380 | ||
381 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYVERIFY, &m); | |
382 | ||
44a053a3 | 383 | debug3("%s: waiting for MONITOR_ANS_KEYVERIFY", __func__); |
826f3a39 | 384 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KEYVERIFY, &m); |
385 | ||
386 | verified = buffer_get_int(&m); | |
387 | ||
388 | buffer_free(&m); | |
389 | ||
390 | return (verified); | |
391 | } | |
392 | ||
393 | /* Export key state after authentication */ | |
394 | Newkeys * | |
395 | mm_newkeys_from_blob(u_char *blob, int blen) | |
396 | { | |
397 | Buffer b; | |
398 | u_int len; | |
399 | Newkeys *newkey = NULL; | |
400 | Enc *enc; | |
401 | Mac *mac; | |
402 | Comp *comp; | |
403 | ||
44a053a3 | 404 | debug3("%s: %p(%d)", __func__, blob, blen); |
826f3a39 | 405 | #ifdef DEBUG_PK |
406 | dump_base64(stderr, blob, blen); | |
407 | #endif | |
408 | buffer_init(&b); | |
409 | buffer_append(&b, blob, blen); | |
410 | ||
411 | newkey = xmalloc(sizeof(*newkey)); | |
412 | enc = &newkey->enc; | |
413 | mac = &newkey->mac; | |
414 | comp = &newkey->comp; | |
415 | ||
416 | /* Enc structure */ | |
417 | enc->name = buffer_get_string(&b, NULL); | |
418 | buffer_get(&b, &enc->cipher, sizeof(enc->cipher)); | |
419 | enc->enabled = buffer_get_int(&b); | |
420 | enc->block_size = buffer_get_int(&b); | |
421 | enc->key = buffer_get_string(&b, &enc->key_len); | |
422 | enc->iv = buffer_get_string(&b, &len); | |
423 | if (len != enc->block_size) | |
d03f4262 | 424 | fatal("%s: bad ivlen: expected %u != %u", __func__, |
826f3a39 | 425 | enc->block_size, len); |
426 | ||
427 | if (enc->name == NULL || cipher_by_name(enc->name) != enc->cipher) | |
44a053a3 | 428 | fatal("%s: bad cipher name %s or pointer %p", __func__, |
826f3a39 | 429 | enc->name, enc->cipher); |
430 | ||
431 | /* Mac structure */ | |
432 | mac->name = buffer_get_string(&b, NULL); | |
433 | if (mac->name == NULL || mac_init(mac, mac->name) == -1) | |
44a053a3 | 434 | fatal("%s: can not init mac %s", __func__, mac->name); |
826f3a39 | 435 | mac->enabled = buffer_get_int(&b); |
436 | mac->key = buffer_get_string(&b, &len); | |
437 | if (len > mac->key_len) | |
d03f4262 | 438 | fatal("%s: bad mac key length: %u > %d", __func__, len, |
826f3a39 | 439 | mac->key_len); |
440 | mac->key_len = len; | |
441 | ||
442 | /* Comp structure */ | |
443 | comp->type = buffer_get_int(&b); | |
444 | comp->enabled = buffer_get_int(&b); | |
445 | comp->name = buffer_get_string(&b, NULL); | |
446 | ||
447 | len = buffer_len(&b); | |
448 | if (len != 0) | |
d03f4262 | 449 | error("newkeys_from_blob: remaining bytes in blob %u", len); |
826f3a39 | 450 | buffer_free(&b); |
451 | return (newkey); | |
452 | } | |
453 | ||
454 | int | |
455 | mm_newkeys_to_blob(int mode, u_char **blobp, u_int *lenp) | |
456 | { | |
457 | Buffer b; | |
458 | int len; | |
826f3a39 | 459 | Enc *enc; |
460 | Mac *mac; | |
461 | Comp *comp; | |
462 | Newkeys *newkey = newkeys[mode]; | |
463 | ||
44a053a3 | 464 | debug3("%s: converting %p", __func__, newkey); |
826f3a39 | 465 | |
466 | if (newkey == NULL) { | |
44a053a3 | 467 | error("%s: newkey == NULL", __func__); |
826f3a39 | 468 | return 0; |
469 | } | |
470 | enc = &newkey->enc; | |
471 | mac = &newkey->mac; | |
472 | comp = &newkey->comp; | |
473 | ||
474 | buffer_init(&b); | |
475 | /* Enc structure */ | |
476 | buffer_put_cstring(&b, enc->name); | |
477 | /* The cipher struct is constant and shared, you export pointer */ | |
478 | buffer_append(&b, &enc->cipher, sizeof(enc->cipher)); | |
479 | buffer_put_int(&b, enc->enabled); | |
480 | buffer_put_int(&b, enc->block_size); | |
481 | buffer_put_string(&b, enc->key, enc->key_len); | |
482 | packet_get_keyiv(mode, enc->iv, enc->block_size); | |
483 | buffer_put_string(&b, enc->iv, enc->block_size); | |
484 | ||
485 | /* Mac structure */ | |
486 | buffer_put_cstring(&b, mac->name); | |
487 | buffer_put_int(&b, mac->enabled); | |
488 | buffer_put_string(&b, mac->key, mac->key_len); | |
489 | ||
490 | /* Comp structure */ | |
491 | buffer_put_int(&b, comp->type); | |
492 | buffer_put_int(&b, comp->enabled); | |
493 | buffer_put_cstring(&b, comp->name); | |
494 | ||
495 | len = buffer_len(&b); | |
826f3a39 | 496 | if (lenp != NULL) |
497 | *lenp = len; | |
d03f4262 | 498 | if (blobp != NULL) { |
499 | *blobp = xmalloc(len); | |
500 | memcpy(*blobp, buffer_ptr(&b), len); | |
501 | } | |
502 | memset(buffer_ptr(&b), 0, len); | |
503 | buffer_free(&b); | |
826f3a39 | 504 | return len; |
505 | } | |
506 | ||
507 | static void | |
508 | mm_send_kex(Buffer *m, Kex *kex) | |
509 | { | |
510 | buffer_put_string(m, kex->session_id, kex->session_id_len); | |
511 | buffer_put_int(m, kex->we_need); | |
512 | buffer_put_int(m, kex->hostkey_type); | |
513 | buffer_put_int(m, kex->kex_type); | |
514 | buffer_put_string(m, buffer_ptr(&kex->my), buffer_len(&kex->my)); | |
515 | buffer_put_string(m, buffer_ptr(&kex->peer), buffer_len(&kex->peer)); | |
516 | buffer_put_int(m, kex->flags); | |
517 | buffer_put_cstring(m, kex->client_version_string); | |
518 | buffer_put_cstring(m, kex->server_version_string); | |
519 | } | |
520 | ||
521 | void | |
522 | mm_send_keystate(struct monitor *pmonitor) | |
523 | { | |
524 | Buffer m; | |
525 | u_char *blob, *p; | |
526 | u_int bloblen, plen; | |
527 | ||
528 | buffer_init(&m); | |
529 | ||
530 | if (!compat20) { | |
531 | u_char iv[24]; | |
44a053a3 | 532 | u_char *key; |
533 | u_int ivlen, keylen; | |
826f3a39 | 534 | |
535 | buffer_put_int(&m, packet_get_protocol_flags()); | |
536 | ||
537 | buffer_put_int(&m, packet_get_ssh1_cipher()); | |
538 | ||
44a053a3 | 539 | debug3("%s: Sending ssh1 KEY+IV", __func__); |
540 | keylen = packet_get_encryption_key(NULL); | |
541 | key = xmalloc(keylen+1); /* add 1 if keylen == 0 */ | |
542 | keylen = packet_get_encryption_key(key); | |
543 | buffer_put_string(&m, key, keylen); | |
544 | memset(key, 0, keylen); | |
545 | xfree(key); | |
546 | ||
826f3a39 | 547 | ivlen = packet_get_keyiv_len(MODE_OUT); |
548 | packet_get_keyiv(MODE_OUT, iv, ivlen); | |
549 | buffer_put_string(&m, iv, ivlen); | |
550 | ivlen = packet_get_keyiv_len(MODE_OUT); | |
551 | packet_get_keyiv(MODE_IN, iv, ivlen); | |
552 | buffer_put_string(&m, iv, ivlen); | |
553 | goto skip; | |
554 | } else { | |
555 | /* Kex for rekeying */ | |
556 | mm_send_kex(&m, *pmonitor->m_pkex); | |
557 | } | |
558 | ||
559 | debug3("%s: Sending new keys: %p %p", | |
44a053a3 | 560 | __func__, newkeys[MODE_OUT], newkeys[MODE_IN]); |
826f3a39 | 561 | |
562 | /* Keys from Kex */ | |
563 | if (!mm_newkeys_to_blob(MODE_OUT, &blob, &bloblen)) | |
44a053a3 | 564 | fatal("%s: conversion of newkeys failed", __func__); |
826f3a39 | 565 | |
566 | buffer_put_string(&m, blob, bloblen); | |
567 | xfree(blob); | |
568 | ||
569 | if (!mm_newkeys_to_blob(MODE_IN, &blob, &bloblen)) | |
44a053a3 | 570 | fatal("%s: conversion of newkeys failed", __func__); |
826f3a39 | 571 | |
572 | buffer_put_string(&m, blob, bloblen); | |
573 | xfree(blob); | |
574 | ||
575 | buffer_put_int(&m, packet_get_seqnr(MODE_OUT)); | |
576 | buffer_put_int(&m, packet_get_seqnr(MODE_IN)); | |
577 | ||
44a053a3 | 578 | debug3("%s: New keys have been sent", __func__); |
826f3a39 | 579 | skip: |
580 | /* More key context */ | |
581 | plen = packet_get_keycontext(MODE_OUT, NULL); | |
582 | p = xmalloc(plen+1); | |
583 | packet_get_keycontext(MODE_OUT, p); | |
584 | buffer_put_string(&m, p, plen); | |
585 | xfree(p); | |
586 | ||
587 | plen = packet_get_keycontext(MODE_IN, NULL); | |
588 | p = xmalloc(plen+1); | |
589 | packet_get_keycontext(MODE_IN, p); | |
590 | buffer_put_string(&m, p, plen); | |
591 | xfree(p); | |
592 | ||
593 | /* Compression state */ | |
44a053a3 | 594 | debug3("%s: Sending compression state", __func__); |
826f3a39 | 595 | buffer_put_string(&m, &outgoing_stream, sizeof(outgoing_stream)); |
596 | buffer_put_string(&m, &incoming_stream, sizeof(incoming_stream)); | |
597 | ||
598 | /* Network I/O buffers */ | |
599 | buffer_put_string(&m, buffer_ptr(&input), buffer_len(&input)); | |
600 | buffer_put_string(&m, buffer_ptr(&output), buffer_len(&output)); | |
601 | ||
602 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYEXPORT, &m); | |
44a053a3 | 603 | debug3("%s: Finished sending state", __func__); |
826f3a39 | 604 | |
605 | buffer_free(&m); | |
606 | } | |
607 | ||
608 | int | |
609 | mm_pty_allocate(int *ptyfd, int *ttyfd, char *namebuf, int namebuflen) | |
610 | { | |
611 | Buffer m; | |
d03f4262 | 612 | char *p; |
826f3a39 | 613 | int success = 0; |
614 | ||
615 | buffer_init(&m); | |
616 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PTY, &m); | |
617 | ||
44a053a3 | 618 | debug3("%s: waiting for MONITOR_ANS_PTY", __func__); |
826f3a39 | 619 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_PTY, &m); |
620 | ||
621 | success = buffer_get_int(&m); | |
622 | if (success == 0) { | |
44a053a3 | 623 | debug3("%s: pty alloc failed", __func__); |
826f3a39 | 624 | buffer_free(&m); |
625 | return (0); | |
626 | } | |
627 | p = buffer_get_string(&m, NULL); | |
628 | buffer_free(&m); | |
629 | ||
630 | strlcpy(namebuf, p, namebuflen); /* Possible truncation */ | |
631 | xfree(p); | |
632 | ||
633 | *ptyfd = mm_receive_fd(pmonitor->m_recvfd); | |
634 | *ttyfd = mm_receive_fd(pmonitor->m_recvfd); | |
635 | ||
636 | /* Success */ | |
637 | return (1); | |
638 | } | |
639 | ||
640 | void | |
641 | mm_session_pty_cleanup2(void *session) | |
642 | { | |
643 | Session *s = session; | |
644 | Buffer m; | |
645 | ||
646 | if (s->ttyfd == -1) | |
647 | return; | |
648 | buffer_init(&m); | |
649 | buffer_put_cstring(&m, s->tty); | |
650 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PTYCLEANUP, &m); | |
651 | buffer_free(&m); | |
652 | ||
653 | /* closed dup'ed master */ | |
654 | if (close(s->ptymaster) < 0) | |
655 | error("close(s->ptymaster): %s", strerror(errno)); | |
656 | ||
657 | /* unlink pty from session */ | |
658 | s->ttyfd = -1; | |
659 | } | |
660 | ||
661 | #ifdef USE_PAM | |
662 | void | |
663 | mm_start_pam(char *user) | |
664 | { | |
665 | Buffer m; | |
666 | ||
44a053a3 | 667 | debug3("%s entering", __func__); |
826f3a39 | 668 | |
669 | buffer_init(&m); | |
670 | buffer_put_cstring(&m, user); | |
671 | ||
672 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PAM_START, &m); | |
673 | ||
674 | buffer_free(&m); | |
675 | } | |
676 | #endif /* USE_PAM */ | |
677 | ||
678 | /* Request process termination */ | |
679 | ||
680 | void | |
681 | mm_terminate(void) | |
682 | { | |
683 | Buffer m; | |
684 | ||
685 | buffer_init(&m); | |
686 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_TERM, &m); | |
687 | buffer_free(&m); | |
688 | } | |
689 | ||
690 | int | |
691 | mm_ssh1_session_key(BIGNUM *num) | |
692 | { | |
693 | int rsafail; | |
694 | Buffer m; | |
695 | ||
696 | buffer_init(&m); | |
697 | buffer_put_bignum2(&m, num); | |
698 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SESSKEY, &m); | |
699 | ||
700 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SESSKEY, &m); | |
701 | ||
702 | rsafail = buffer_get_int(&m); | |
703 | buffer_get_bignum2(&m, num); | |
704 | ||
705 | buffer_free(&m); | |
706 | ||
707 | return (rsafail); | |
708 | } | |
709 | ||
710 | static void | |
711 | mm_chall_setup(char **name, char **infotxt, u_int *numprompts, | |
712 | char ***prompts, u_int **echo_on) | |
713 | { | |
44a053a3 | 714 | *name = xstrdup(""); |
715 | *infotxt = xstrdup(""); | |
826f3a39 | 716 | *numprompts = 1; |
d03f4262 | 717 | *prompts = xmalloc(*numprompts * sizeof(char *)); |
826f3a39 | 718 | *echo_on = xmalloc(*numprompts * sizeof(u_int)); |
719 | (*echo_on)[0] = 0; | |
720 | } | |
721 | ||
722 | int | |
723 | mm_bsdauth_query(void *ctx, char **name, char **infotxt, | |
724 | u_int *numprompts, char ***prompts, u_int **echo_on) | |
725 | { | |
726 | Buffer m; | |
bfe49944 | 727 | u_int success; |
826f3a39 | 728 | char *challenge; |
729 | ||
44a053a3 | 730 | debug3("%s: entering", __func__); |
826f3a39 | 731 | |
732 | buffer_init(&m); | |
733 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_BSDAUTHQUERY, &m); | |
734 | ||
735 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_BSDAUTHQUERY, | |
736 | &m); | |
bfe49944 | 737 | success = buffer_get_int(&m); |
738 | if (success == 0) { | |
44a053a3 | 739 | debug3("%s: no challenge", __func__); |
826f3a39 | 740 | buffer_free(&m); |
741 | return (-1); | |
742 | } | |
743 | ||
744 | /* Get the challenge, and format the response */ | |
745 | challenge = buffer_get_string(&m, NULL); | |
746 | buffer_free(&m); | |
747 | ||
748 | mm_chall_setup(name, infotxt, numprompts, prompts, echo_on); | |
749 | (*prompts)[0] = challenge; | |
750 | ||
44a053a3 | 751 | debug3("%s: received challenge: %s", __func__, challenge); |
826f3a39 | 752 | |
753 | return (0); | |
754 | } | |
755 | ||
756 | int | |
757 | mm_bsdauth_respond(void *ctx, u_int numresponses, char **responses) | |
758 | { | |
759 | Buffer m; | |
760 | int authok; | |
761 | ||
44a053a3 | 762 | debug3("%s: entering", __func__); |
826f3a39 | 763 | if (numresponses != 1) |
764 | return (-1); | |
765 | ||
766 | buffer_init(&m); | |
767 | buffer_put_cstring(&m, responses[0]); | |
768 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_BSDAUTHRESPOND, &m); | |
769 | ||
770 | mm_request_receive_expect(pmonitor->m_recvfd, | |
771 | MONITOR_ANS_BSDAUTHRESPOND, &m); | |
772 | ||
773 | authok = buffer_get_int(&m); | |
774 | buffer_free(&m); | |
775 | ||
776 | return ((authok == 0) ? -1 : 0); | |
777 | } | |
778 | ||
779 | int | |
780 | mm_skey_query(void *ctx, char **name, char **infotxt, | |
781 | u_int *numprompts, char ***prompts, u_int **echo_on) | |
782 | { | |
783 | Buffer m; | |
bfe49944 | 784 | int len; |
785 | u_int success; | |
826f3a39 | 786 | char *p, *challenge; |
787 | ||
44a053a3 | 788 | debug3("%s: entering", __func__); |
826f3a39 | 789 | |
790 | buffer_init(&m); | |
791 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SKEYQUERY, &m); | |
792 | ||
793 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SKEYQUERY, | |
794 | &m); | |
bfe49944 | 795 | success = buffer_get_int(&m); |
796 | if (success == 0) { | |
44a053a3 | 797 | debug3("%s: no challenge", __func__); |
826f3a39 | 798 | buffer_free(&m); |
799 | return (-1); | |
800 | } | |
801 | ||
802 | /* Get the challenge, and format the response */ | |
803 | challenge = buffer_get_string(&m, NULL); | |
804 | buffer_free(&m); | |
805 | ||
44a053a3 | 806 | debug3("%s: received challenge: %s", __func__, challenge); |
826f3a39 | 807 | |
808 | mm_chall_setup(name, infotxt, numprompts, prompts, echo_on); | |
809 | ||
810 | len = strlen(challenge) + strlen(SKEY_PROMPT) + 1; | |
811 | p = xmalloc(len); | |
812 | strlcpy(p, challenge, len); | |
813 | strlcat(p, SKEY_PROMPT, len); | |
814 | (*prompts)[0] = p; | |
815 | xfree(challenge); | |
816 | ||
817 | return (0); | |
818 | } | |
819 | ||
820 | int | |
821 | mm_skey_respond(void *ctx, u_int numresponses, char **responses) | |
822 | { | |
823 | Buffer m; | |
824 | int authok; | |
825 | ||
44a053a3 | 826 | debug3("%s: entering", __func__); |
826f3a39 | 827 | if (numresponses != 1) |
828 | return (-1); | |
829 | ||
830 | buffer_init(&m); | |
831 | buffer_put_cstring(&m, responses[0]); | |
832 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SKEYRESPOND, &m); | |
833 | ||
834 | mm_request_receive_expect(pmonitor->m_recvfd, | |
835 | MONITOR_ANS_SKEYRESPOND, &m); | |
836 | ||
837 | authok = buffer_get_int(&m); | |
838 | buffer_free(&m); | |
839 | ||
840 | return ((authok == 0) ? -1 : 0); | |
841 | } | |
842 | ||
843 | void | |
844 | mm_ssh1_session_id(u_char session_id[16]) | |
845 | { | |
846 | Buffer m; | |
847 | int i; | |
848 | ||
44a053a3 | 849 | debug3("%s entering", __func__); |
826f3a39 | 850 | |
851 | buffer_init(&m); | |
852 | for (i = 0; i < 16; i++) | |
853 | buffer_put_char(&m, session_id[i]); | |
854 | ||
855 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SESSID, &m); | |
856 | buffer_free(&m); | |
857 | } | |
858 | ||
859 | int | |
860 | mm_auth_rsa_key_allowed(struct passwd *pw, BIGNUM *client_n, Key **rkey) | |
861 | { | |
862 | Buffer m; | |
863 | Key *key; | |
864 | u_char *blob; | |
865 | u_int blen; | |
bfe49944 | 866 | int allowed = 0, have_forced = 0; |
826f3a39 | 867 | |
44a053a3 | 868 | debug3("%s entering", __func__); |
826f3a39 | 869 | |
870 | buffer_init(&m); | |
871 | buffer_put_bignum2(&m, client_n); | |
872 | ||
873 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSAKEYALLOWED, &m); | |
874 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSAKEYALLOWED, &m); | |
875 | ||
876 | allowed = buffer_get_int(&m); | |
877 | ||
bfe49944 | 878 | /* fake forced command */ |
879 | auth_clear_options(); | |
880 | have_forced = buffer_get_int(&m); | |
881 | forced_command = have_forced ? xstrdup("true") : NULL; | |
882 | ||
826f3a39 | 883 | if (allowed && rkey != NULL) { |
884 | blob = buffer_get_string(&m, &blen); | |
885 | if ((key = key_from_blob(blob, blen)) == NULL) | |
44a053a3 | 886 | fatal("%s: key_from_blob failed", __func__); |
826f3a39 | 887 | *rkey = key; |
888 | xfree(blob); | |
889 | } | |
890 | mm_send_debug(&m); | |
891 | buffer_free(&m); | |
892 | ||
893 | return (allowed); | |
894 | } | |
895 | ||
896 | BIGNUM * | |
897 | mm_auth_rsa_generate_challenge(Key *key) | |
898 | { | |
899 | Buffer m; | |
900 | BIGNUM *challenge; | |
901 | u_char *blob; | |
902 | u_int blen; | |
903 | ||
44a053a3 | 904 | debug3("%s entering", __func__); |
826f3a39 | 905 | |
906 | if ((challenge = BN_new()) == NULL) | |
44a053a3 | 907 | fatal("%s: BN_new failed", __func__); |
826f3a39 | 908 | |
909 | key->type = KEY_RSA; /* XXX cheat for key_to_blob */ | |
910 | if (key_to_blob(key, &blob, &blen) == 0) | |
44a053a3 | 911 | fatal("%s: key_to_blob failed", __func__); |
826f3a39 | 912 | key->type = KEY_RSA1; |
913 | ||
914 | buffer_init(&m); | |
915 | buffer_put_string(&m, blob, blen); | |
916 | xfree(blob); | |
917 | ||
918 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSACHALLENGE, &m); | |
919 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSACHALLENGE, &m); | |
920 | ||
921 | buffer_get_bignum2(&m, challenge); | |
922 | buffer_free(&m); | |
923 | ||
924 | return (challenge); | |
925 | } | |
926 | ||
927 | int | |
928 | mm_auth_rsa_verify_response(Key *key, BIGNUM *p, u_char response[16]) | |
929 | { | |
930 | Buffer m; | |
931 | u_char *blob; | |
932 | u_int blen; | |
933 | int success = 0; | |
934 | ||
44a053a3 | 935 | debug3("%s entering", __func__); |
826f3a39 | 936 | |
937 | key->type = KEY_RSA; /* XXX cheat for key_to_blob */ | |
938 | if (key_to_blob(key, &blob, &blen) == 0) | |
44a053a3 | 939 | fatal("%s: key_to_blob failed", __func__); |
826f3a39 | 940 | key->type = KEY_RSA1; |
941 | ||
942 | buffer_init(&m); | |
943 | buffer_put_string(&m, blob, blen); | |
944 | buffer_put_string(&m, response, 16); | |
945 | xfree(blob); | |
946 | ||
947 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSARESPONSE, &m); | |
948 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSARESPONSE, &m); | |
949 | ||
950 | success = buffer_get_int(&m); | |
951 | buffer_free(&m); | |
952 | ||
953 | return (success); | |
954 | } | |
23987cb8 | 955 | |
956 | #ifdef KRB4 | |
957 | int | |
958 | mm_auth_krb4(Authctxt *authctxt, void *_auth, char **client, void *_reply) | |
959 | { | |
960 | KTEXT auth, reply; | |
961 | Buffer m; | |
962 | u_int rlen; | |
963 | int success = 0; | |
964 | char *p; | |
965 | ||
966 | debug3("%s entering", __func__); | |
967 | auth = _auth; | |
968 | reply = _reply; | |
969 | ||
970 | buffer_init(&m); | |
971 | buffer_put_string(&m, auth->dat, auth->length); | |
972 | ||
973 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KRB4, &m); | |
974 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KRB4, &m); | |
975 | ||
976 | success = buffer_get_int(&m); | |
977 | if (success) { | |
978 | *client = buffer_get_string(&m, NULL); | |
979 | p = buffer_get_string(&m, &rlen); | |
980 | if (rlen >= MAX_KTXT_LEN) | |
981 | fatal("%s: reply from monitor too large", __func__); | |
982 | reply->length = rlen; | |
983 | memcpy(reply->dat, p, rlen); | |
984 | memset(p, 0, rlen); | |
985 | xfree(p); | |
986 | } | |
987 | buffer_free(&m); | |
988 | return (success); | |
989 | } | |
990 | #endif | |
991 | ||
992 | #ifdef KRB5 | |
993 | int | |
994 | mm_auth_krb5(void *ctx, void *argp, char **userp, void *resp) | |
995 | { | |
996 | krb5_data *tkt, *reply; | |
997 | Buffer m; | |
998 | int success; | |
999 | ||
1000 | debug3("%s entering", __func__); | |
1001 | tkt = (krb5_data *) argp; | |
1002 | reply = (krb5_data *) resp; | |
1003 | ||
1004 | buffer_init(&m); | |
1005 | buffer_put_string(&m, tkt->data, tkt->length); | |
1006 | ||
1007 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KRB5, &m); | |
1008 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KRB5, &m); | |
1009 | ||
1010 | success = buffer_get_int(&m); | |
1011 | if (success) { | |
1012 | u_int len; | |
1013 | ||
1014 | *userp = buffer_get_string(&m, NULL); | |
1015 | reply->data = buffer_get_string(&m, &len); | |
1016 | reply->length = len; | |
1017 | } else { | |
1018 | memset(reply, 0, sizeof(*reply)); | |
1019 | *userp = NULL; | |
1020 | } | |
1021 | ||
1022 | buffer_free(&m); | |
1023 | return (success); | |
1024 | } | |
1025 | #endif | |
b59afbfe | 1026 | #ifdef GSSAPI |
1027 | OM_uint32 | |
1028 | mm_ssh_gssapi_server_ctx(Gssctxt **ctx, gss_OID oid) { | |
1029 | Buffer m; | |
1030 | OM_uint32 major; | |
1031 | ||
1032 | /* Client doesn't get to see the context */ | |
1033 | *ctx=NULL; | |
1034 | ||
1035 | buffer_init(&m); | |
1036 | buffer_put_string(&m,oid->elements,oid->length); | |
1037 | ||
1038 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSETUP, &m); | |
b59afbfe | 1039 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSETUP, &m); |
23987cb8 | 1040 | |
b59afbfe | 1041 | major=buffer_get_int(&m); |
1042 | ||
23987cb8 | 1043 | buffer_free(&m); |
b59afbfe | 1044 | return(major); |
1045 | } | |
1046 | ||
1047 | OM_uint32 | |
1048 | mm_ssh_gssapi_accept_ctx(Gssctxt *ctx, gss_buffer_desc *in, | |
1049 | gss_buffer_desc *out, OM_uint32 *flags) { | |
23987cb8 | 1050 | |
b59afbfe | 1051 | Buffer m; |
1052 | OM_uint32 major; | |
1053 | ||
1054 | buffer_init(&m); | |
1055 | buffer_put_string(&m, in->value, in->length); | |
b59afbfe | 1056 | |
23987cb8 | 1057 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSTEP, &m); |
b59afbfe | 1058 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSTEP, &m); |
1059 | ||
1060 | major=buffer_get_int(&m); | |
1061 | out->value=buffer_get_string(&m,&out->length); | |
1062 | if (flags) *flags=buffer_get_int(&m); | |
1063 | ||
23987cb8 | 1064 | buffer_free(&m); |
1065 | ||
b59afbfe | 1066 | return(major); |
1067 | } | |
1068 | ||
1069 | int | |
1070 | mm_ssh_gssapi_userok(char *user) { | |
1071 | Buffer m; | |
1072 | int authenticated = 0; | |
1073 | ||
1074 | buffer_init(&m); | |
d7590ddf | 1075 | |
b59afbfe | 1076 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSUSEROK, &m); |
b59afbfe | 1077 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSUSEROK, |
1078 | &m); | |
1079 | ||
1080 | authenticated = buffer_get_int(&m); | |
1081 | ||
1082 | buffer_free(&m); | |
1083 | debug3("%s: user %sauthenticated",__func__, authenticated ? "" : "not "); | |
1084 | return(authenticated); | |
1085 | } | |
1086 | ||
b59afbfe | 1087 | OM_uint32 |
1088 | mm_ssh_gssapi_sign(Gssctxt *ctx, gss_buffer_desc *data, gss_buffer_desc *hash) { | |
1089 | Buffer m; | |
1090 | OM_uint32 major; | |
1091 | ||
1092 | buffer_init(&m); | |
1093 | buffer_put_string(&m, data->value, data->length); | |
1094 | ||
1095 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSIGN, &m); | |
b59afbfe | 1096 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSIGN, &m); |
23987cb8 | 1097 | |
b59afbfe | 1098 | major=buffer_get_int(&m); |
1099 | hash->value = buffer_get_string(&m, &hash->length); | |
1100 | ||
23987cb8 | 1101 | buffer_free(&m); |
1102 | ||
b59afbfe | 1103 | return(major); |
1104 | } | |
9eeaa28e | 1105 | |
23987cb8 | 1106 | char * |
1107 | mm_ssh_gssapi_last_error(Gssctxt *ctx, OM_uint32 *major, OM_uint32 *minor) { | |
1108 | Buffer m; | |
1109 | OM_uint32 maj,min; | |
1110 | char *errstr; | |
1111 | ||
1112 | buffer_init(&m); | |
1113 | ||
1114 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSERR, &m); | |
1115 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSERR, &m); | |
1116 | ||
1117 | maj = buffer_get_int(&m); | |
1118 | min = buffer_get_int(&m); | |
1119 | ||
1120 | if (major) *major=maj; | |
1121 | if (minor) *minor=min; | |
1122 | ||
1123 | errstr=buffer_get_string(&m,NULL); | |
1124 | ||
1125 | buffer_free(&m); | |
1126 | ||
1127 | return(errstr); | |
1128 | } | |
e23e524c | 1129 | |
9eeaa28e | 1130 | OM_uint32 |
1131 | mm_gss_indicate_mechs(OM_uint32 *minor_status, gss_OID_set *mech_set) | |
1132 | { | |
1133 | Buffer m; | |
e23e524c | 1134 | OM_uint32 major,minor; |
1135 | int count; | |
1136 | gss_OID_desc oid; | |
d7590ddf | 1137 | u_int length; |
1138 | ||
9eeaa28e | 1139 | buffer_init(&m); |
1140 | ||
1141 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSMECHS, &m); | |
9eeaa28e | 1142 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSMECHS, |
1143 | &m); | |
1144 | major=buffer_get_int(&m); | |
17a7ea48 | 1145 | count=buffer_get_int(&m); |
e23e524c | 1146 | |
1147 | gss_create_empty_oid_set(&minor,mech_set); | |
1148 | while(count-->0) { | |
e23e524c | 1149 | oid.elements=buffer_get_string(&m,&length); |
1150 | oid.length=length; | |
1151 | gss_add_oid_set_member(&minor,&oid,mech_set); | |
9eeaa28e | 1152 | } |
1153 | ||
23987cb8 | 1154 | buffer_free(&m); |
9eeaa28e | 1155 | |
23987cb8 | 1156 | return(major); |
9eeaa28e | 1157 | } |
e23e524c | 1158 | |
1159 | int | |
1160 | mm_ssh_gssapi_localname(char **lname) | |
1161 | { | |
1162 | Buffer m; | |
1163 | ||
1164 | buffer_init(&m); | |
1165 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSLOCALNAME, &m); | |
1166 | ||
1167 | debug3("%s: waiting for MONITOR_ANS_GSSLOCALNAME", __func__); | |
1168 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSLOCALNAME, | |
1169 | &m); | |
1170 | ||
1171 | *lname = buffer_get_string(&m, NULL); | |
1172 | ||
1173 | buffer_free(&m); | |
1174 | if (lname[0] == '\0') { | |
1175 | debug3("%s: gssapi identity mapping failed", __func__); | |
1176 | } else { | |
1177 | debug3("%s: gssapi identity mapped to %s", __func__, *lname); | |
1178 | } | |
1179 | ||
1180 | return(0); | |
1181 | } | |
b59afbfe | 1182 | #endif /* GSSAPI */ |
1183 | ||
1184 | #ifdef GSI | |
1185 | ||
1186 | int mm_gsi_gridmap(char *subject_name, char **lname) | |
1187 | { | |
1188 | Buffer m; | |
1189 | ||
1190 | buffer_init(&m); | |
1191 | buffer_put_cstring(&m, subject_name); | |
1192 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSIGRIDMAP, &m); | |
1193 | ||
b59afbfe | 1194 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSIGRIDMAP, |
1195 | &m); | |
1196 | ||
1197 | *lname = buffer_get_string(&m, NULL); | |
1198 | ||
1199 | buffer_free(&m); | |
1200 | if (lname[0] == '\0') { | |
1201 | debug3("%s: gssapi identity %s mapping failed", __func__, | |
1202 | subject_name); | |
1203 | } else { | |
1204 | debug3("%s: gssapi identity %s mapped to %s", __func__, | |
1205 | subject_name, *lname); | |
1206 | } | |
1207 | ||
1208 | return(0); | |
1209 | ||
1210 | } | |
1211 | ||
1212 | #endif /* GSI */ |