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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" | |
d03f4262 | 28 | RCSID("$OpenBSD: monitor_wrap.c,v 1.19 2002/09/26 11:38:43 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" | |
37 | #include "buffer.h" | |
38 | #include "bufaux.h" | |
39 | #include "packet.h" | |
40 | #include "mac.h" | |
41 | #include "log.h" | |
42 | #include "zlib.h" | |
43 | #include "monitor.h" | |
44 | #include "monitor_wrap.h" | |
45 | #include "xmalloc.h" | |
46 | #include "atomicio.h" | |
47 | #include "monitor_fdpass.h" | |
48 | #include "getput.h" | |
49 | ||
50 | #include "auth.h" | |
51 | #include "channels.h" | |
52 | #include "session.h" | |
53 | ||
b59afbfe | 54 | #ifdef GSSAPI |
55 | #include "ssh-gss.h" | |
56 | #endif | |
57 | ||
826f3a39 | 58 | /* Imports */ |
59 | extern int compat20; | |
60 | extern Newkeys *newkeys[]; | |
61 | extern z_stream incoming_stream; | |
62 | extern z_stream outgoing_stream; | |
63 | extern struct monitor *pmonitor; | |
64 | extern Buffer input, output; | |
65 | ||
66 | void | |
67 | mm_request_send(int socket, enum monitor_reqtype type, Buffer *m) | |
68 | { | |
826f3a39 | 69 | u_int mlen = buffer_len(m); |
d03f4262 | 70 | u_char buf[5]; |
826f3a39 | 71 | |
44a053a3 | 72 | debug3("%s entering: type %d", __func__, type); |
826f3a39 | 73 | |
74 | PUT_32BIT(buf, mlen + 1); | |
44a053a3 | 75 | buf[4] = (u_char) type; /* 1st byte of payload is mesg-type */ |
826f3a39 | 76 | if (atomicio(write, socket, buf, sizeof(buf)) != sizeof(buf)) |
44a053a3 | 77 | fatal("%s: write", __func__); |
826f3a39 | 78 | if (atomicio(write, socket, buffer_ptr(m), mlen) != mlen) |
44a053a3 | 79 | fatal("%s: write", __func__); |
826f3a39 | 80 | } |
81 | ||
82 | void | |
83 | mm_request_receive(int socket, Buffer *m) | |
84 | { | |
85 | u_char buf[4]; | |
826f3a39 | 86 | u_int msg_len; |
d03f4262 | 87 | ssize_t res; |
826f3a39 | 88 | |
44a053a3 | 89 | debug3("%s entering", __func__); |
826f3a39 | 90 | |
91 | res = atomicio(read, socket, buf, sizeof(buf)); | |
92 | if (res != sizeof(buf)) { | |
93 | if (res == 0) | |
94 | fatal_cleanup(); | |
44a053a3 | 95 | fatal("%s: read: %ld", __func__, (long)res); |
826f3a39 | 96 | } |
97 | msg_len = GET_32BIT(buf); | |
98 | if (msg_len > 256 * 1024) | |
44a053a3 | 99 | fatal("%s: read: bad msg_len %d", __func__, msg_len); |
826f3a39 | 100 | buffer_clear(m); |
101 | buffer_append_space(m, msg_len); | |
102 | res = atomicio(read, socket, buffer_ptr(m), msg_len); | |
103 | if (res != msg_len) | |
44a053a3 | 104 | fatal("%s: read: %ld != msg_len", __func__, (long)res); |
826f3a39 | 105 | } |
106 | ||
107 | void | |
108 | mm_request_receive_expect(int socket, enum monitor_reqtype type, Buffer *m) | |
109 | { | |
110 | u_char rtype; | |
111 | ||
44a053a3 | 112 | debug3("%s entering: type %d", __func__, type); |
826f3a39 | 113 | |
114 | mm_request_receive(socket, m); | |
115 | rtype = buffer_get_char(m); | |
116 | if (rtype != type) | |
44a053a3 | 117 | fatal("%s: read: rtype %d != type %d", __func__, |
826f3a39 | 118 | rtype, type); |
119 | } | |
120 | ||
121 | DH * | |
122 | mm_choose_dh(int min, int nbits, int max) | |
123 | { | |
124 | BIGNUM *p, *g; | |
125 | int success = 0; | |
126 | Buffer m; | |
127 | ||
128 | buffer_init(&m); | |
129 | buffer_put_int(&m, min); | |
130 | buffer_put_int(&m, nbits); | |
131 | buffer_put_int(&m, max); | |
132 | ||
133 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_MODULI, &m); | |
134 | ||
44a053a3 | 135 | debug3("%s: waiting for MONITOR_ANS_MODULI", __func__); |
826f3a39 | 136 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_MODULI, &m); |
137 | ||
138 | success = buffer_get_char(&m); | |
139 | if (success == 0) | |
44a053a3 | 140 | fatal("%s: MONITOR_ANS_MODULI failed", __func__); |
826f3a39 | 141 | |
142 | if ((p = BN_new()) == NULL) | |
44a053a3 | 143 | fatal("%s: BN_new failed", __func__); |
826f3a39 | 144 | if ((g = BN_new()) == NULL) |
44a053a3 | 145 | fatal("%s: BN_new failed", __func__); |
826f3a39 | 146 | buffer_get_bignum2(&m, p); |
147 | buffer_get_bignum2(&m, g); | |
148 | ||
44a053a3 | 149 | debug3("%s: remaining %d", __func__, buffer_len(&m)); |
826f3a39 | 150 | buffer_free(&m); |
151 | ||
152 | return (dh_new_group(g, p)); | |
153 | } | |
154 | ||
155 | int | |
156 | mm_key_sign(Key *key, u_char **sigp, u_int *lenp, u_char *data, u_int datalen) | |
157 | { | |
158 | Kex *kex = *pmonitor->m_pkex; | |
159 | Buffer m; | |
160 | ||
44a053a3 | 161 | debug3("%s entering", __func__); |
826f3a39 | 162 | |
163 | buffer_init(&m); | |
164 | buffer_put_int(&m, kex->host_key_index(key)); | |
165 | buffer_put_string(&m, data, datalen); | |
166 | ||
167 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SIGN, &m); | |
168 | ||
44a053a3 | 169 | debug3("%s: waiting for MONITOR_ANS_SIGN", __func__); |
826f3a39 | 170 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SIGN, &m); |
171 | *sigp = buffer_get_string(&m, lenp); | |
172 | buffer_free(&m); | |
173 | ||
174 | return (0); | |
175 | } | |
176 | ||
177 | struct passwd * | |
178 | mm_getpwnamallow(const char *login) | |
179 | { | |
180 | Buffer m; | |
181 | struct passwd *pw; | |
182 | u_int pwlen; | |
183 | ||
44a053a3 | 184 | debug3("%s entering", __func__); |
826f3a39 | 185 | |
186 | buffer_init(&m); | |
187 | buffer_put_cstring(&m, login); | |
188 | ||
189 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PWNAM, &m); | |
190 | ||
44a053a3 | 191 | debug3("%s: waiting for MONITOR_ANS_PWNAM", __func__); |
826f3a39 | 192 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_PWNAM, &m); |
193 | ||
194 | if (buffer_get_char(&m) == 0) { | |
195 | buffer_free(&m); | |
196 | return (NULL); | |
197 | } | |
198 | pw = buffer_get_string(&m, &pwlen); | |
199 | if (pwlen != sizeof(struct passwd)) | |
44a053a3 | 200 | fatal("%s: struct passwd size mismatch", __func__); |
826f3a39 | 201 | pw->pw_name = buffer_get_string(&m, NULL); |
202 | pw->pw_passwd = buffer_get_string(&m, NULL); | |
203 | pw->pw_gecos = buffer_get_string(&m, NULL); | |
204 | #ifdef HAVE_PW_CLASS_IN_PASSWD | |
205 | pw->pw_class = buffer_get_string(&m, NULL); | |
206 | #endif | |
207 | pw->pw_dir = buffer_get_string(&m, NULL); | |
208 | pw->pw_shell = buffer_get_string(&m, NULL); | |
209 | buffer_free(&m); | |
210 | ||
211 | return (pw); | |
212 | } | |
213 | ||
d03f4262 | 214 | char *mm_auth2_read_banner(void) |
826f3a39 | 215 | { |
216 | Buffer m; | |
217 | char *banner; | |
218 | ||
44a053a3 | 219 | debug3("%s entering", __func__); |
826f3a39 | 220 | |
221 | buffer_init(&m); | |
222 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTH2_READ_BANNER, &m); | |
223 | buffer_clear(&m); | |
224 | ||
225 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_AUTH2_READ_BANNER, &m); | |
226 | banner = buffer_get_string(&m, NULL); | |
227 | buffer_free(&m); | |
44a053a3 | 228 | |
826f3a39 | 229 | return (banner); |
230 | } | |
231 | ||
232 | /* Inform the privileged process about service and style */ | |
233 | ||
234 | void | |
235 | mm_inform_authserv(char *service, char *style) | |
236 | { | |
237 | Buffer m; | |
238 | ||
44a053a3 | 239 | debug3("%s entering", __func__); |
826f3a39 | 240 | |
241 | buffer_init(&m); | |
242 | buffer_put_cstring(&m, service); | |
243 | buffer_put_cstring(&m, style ? style : ""); | |
244 | ||
245 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHSERV, &m); | |
246 | ||
247 | buffer_free(&m); | |
248 | } | |
249 | ||
250 | /* Do the password authentication */ | |
251 | int | |
252 | mm_auth_password(Authctxt *authctxt, char *password) | |
253 | { | |
254 | Buffer m; | |
255 | int authenticated = 0; | |
256 | ||
44a053a3 | 257 | debug3("%s entering", __func__); |
826f3a39 | 258 | |
259 | buffer_init(&m); | |
260 | buffer_put_cstring(&m, password); | |
261 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHPASSWORD, &m); | |
262 | ||
44a053a3 | 263 | debug3("%s: waiting for MONITOR_ANS_AUTHPASSWORD", __func__); |
826f3a39 | 264 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_AUTHPASSWORD, &m); |
265 | ||
266 | authenticated = buffer_get_int(&m); | |
267 | ||
268 | buffer_free(&m); | |
269 | ||
270 | debug3("%s: user %sauthenticated", | |
44a053a3 | 271 | __func__, authenticated ? "" : "not "); |
826f3a39 | 272 | return (authenticated); |
273 | } | |
274 | ||
275 | int | |
276 | mm_user_key_allowed(struct passwd *pw, Key *key) | |
277 | { | |
278 | return (mm_key_allowed(MM_USERKEY, NULL, NULL, key)); | |
279 | } | |
280 | ||
281 | int | |
282 | mm_hostbased_key_allowed(struct passwd *pw, char *user, char *host, | |
283 | Key *key) | |
284 | { | |
285 | return (mm_key_allowed(MM_HOSTKEY, user, host, key)); | |
286 | } | |
287 | ||
288 | int | |
289 | mm_auth_rhosts_rsa_key_allowed(struct passwd *pw, char *user, | |
290 | char *host, Key *key) | |
291 | { | |
292 | int ret; | |
293 | ||
294 | key->type = KEY_RSA; /* XXX hack for key_to_blob */ | |
295 | ret = mm_key_allowed(MM_RSAHOSTKEY, user, host, key); | |
296 | key->type = KEY_RSA1; | |
297 | return (ret); | |
298 | } | |
299 | ||
300 | static void | |
301 | mm_send_debug(Buffer *m) | |
302 | { | |
303 | char *msg; | |
304 | ||
305 | while (buffer_len(m)) { | |
306 | msg = buffer_get_string(m, NULL); | |
44a053a3 | 307 | debug3("%s: Sending debug: %s", __func__, msg); |
826f3a39 | 308 | packet_send_debug("%s", msg); |
309 | xfree(msg); | |
310 | } | |
311 | } | |
312 | ||
313 | int | |
314 | mm_key_allowed(enum mm_keytype type, char *user, char *host, Key *key) | |
315 | { | |
316 | Buffer m; | |
317 | u_char *blob; | |
318 | u_int len; | |
319 | int allowed = 0; | |
320 | ||
44a053a3 | 321 | debug3("%s entering", __func__); |
826f3a39 | 322 | |
323 | /* Convert the key to a blob and the pass it over */ | |
324 | if (!key_to_blob(key, &blob, &len)) | |
325 | return (0); | |
326 | ||
327 | buffer_init(&m); | |
328 | buffer_put_int(&m, type); | |
329 | buffer_put_cstring(&m, user ? user : ""); | |
330 | buffer_put_cstring(&m, host ? host : ""); | |
331 | buffer_put_string(&m, blob, len); | |
332 | xfree(blob); | |
333 | ||
334 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYALLOWED, &m); | |
335 | ||
44a053a3 | 336 | debug3("%s: waiting for MONITOR_ANS_KEYALLOWED", __func__); |
826f3a39 | 337 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KEYALLOWED, &m); |
338 | ||
339 | allowed = buffer_get_int(&m); | |
340 | ||
341 | /* Send potential debug messages */ | |
342 | mm_send_debug(&m); | |
343 | ||
344 | buffer_free(&m); | |
345 | ||
346 | return (allowed); | |
347 | } | |
348 | ||
349 | /* | |
350 | * This key verify needs to send the key type along, because the | |
351 | * privileged parent makes the decision if the key is allowed | |
352 | * for authentication. | |
353 | */ | |
354 | ||
355 | int | |
356 | mm_key_verify(Key *key, u_char *sig, u_int siglen, u_char *data, u_int datalen) | |
357 | { | |
358 | Buffer m; | |
359 | u_char *blob; | |
360 | u_int len; | |
361 | int verified = 0; | |
362 | ||
44a053a3 | 363 | debug3("%s entering", __func__); |
826f3a39 | 364 | |
365 | /* Convert the key to a blob and the pass it over */ | |
366 | if (!key_to_blob(key, &blob, &len)) | |
367 | return (0); | |
368 | ||
369 | buffer_init(&m); | |
370 | buffer_put_string(&m, blob, len); | |
371 | buffer_put_string(&m, sig, siglen); | |
372 | buffer_put_string(&m, data, datalen); | |
373 | xfree(blob); | |
374 | ||
375 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYVERIFY, &m); | |
376 | ||
44a053a3 | 377 | debug3("%s: waiting for MONITOR_ANS_KEYVERIFY", __func__); |
826f3a39 | 378 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KEYVERIFY, &m); |
379 | ||
380 | verified = buffer_get_int(&m); | |
381 | ||
382 | buffer_free(&m); | |
383 | ||
384 | return (verified); | |
385 | } | |
386 | ||
387 | /* Export key state after authentication */ | |
388 | Newkeys * | |
389 | mm_newkeys_from_blob(u_char *blob, int blen) | |
390 | { | |
391 | Buffer b; | |
392 | u_int len; | |
393 | Newkeys *newkey = NULL; | |
394 | Enc *enc; | |
395 | Mac *mac; | |
396 | Comp *comp; | |
397 | ||
44a053a3 | 398 | debug3("%s: %p(%d)", __func__, blob, blen); |
826f3a39 | 399 | #ifdef DEBUG_PK |
400 | dump_base64(stderr, blob, blen); | |
401 | #endif | |
402 | buffer_init(&b); | |
403 | buffer_append(&b, blob, blen); | |
404 | ||
405 | newkey = xmalloc(sizeof(*newkey)); | |
406 | enc = &newkey->enc; | |
407 | mac = &newkey->mac; | |
408 | comp = &newkey->comp; | |
409 | ||
410 | /* Enc structure */ | |
411 | enc->name = buffer_get_string(&b, NULL); | |
412 | buffer_get(&b, &enc->cipher, sizeof(enc->cipher)); | |
413 | enc->enabled = buffer_get_int(&b); | |
414 | enc->block_size = buffer_get_int(&b); | |
415 | enc->key = buffer_get_string(&b, &enc->key_len); | |
416 | enc->iv = buffer_get_string(&b, &len); | |
417 | if (len != enc->block_size) | |
d03f4262 | 418 | fatal("%s: bad ivlen: expected %u != %u", __func__, |
826f3a39 | 419 | enc->block_size, len); |
420 | ||
421 | if (enc->name == NULL || cipher_by_name(enc->name) != enc->cipher) | |
44a053a3 | 422 | fatal("%s: bad cipher name %s or pointer %p", __func__, |
826f3a39 | 423 | enc->name, enc->cipher); |
424 | ||
425 | /* Mac structure */ | |
426 | mac->name = buffer_get_string(&b, NULL); | |
427 | if (mac->name == NULL || mac_init(mac, mac->name) == -1) | |
44a053a3 | 428 | fatal("%s: can not init mac %s", __func__, mac->name); |
826f3a39 | 429 | mac->enabled = buffer_get_int(&b); |
430 | mac->key = buffer_get_string(&b, &len); | |
431 | if (len > mac->key_len) | |
d03f4262 | 432 | fatal("%s: bad mac key length: %u > %d", __func__, len, |
826f3a39 | 433 | mac->key_len); |
434 | mac->key_len = len; | |
435 | ||
436 | /* Comp structure */ | |
437 | comp->type = buffer_get_int(&b); | |
438 | comp->enabled = buffer_get_int(&b); | |
439 | comp->name = buffer_get_string(&b, NULL); | |
440 | ||
441 | len = buffer_len(&b); | |
442 | if (len != 0) | |
d03f4262 | 443 | error("newkeys_from_blob: remaining bytes in blob %u", len); |
826f3a39 | 444 | buffer_free(&b); |
445 | return (newkey); | |
446 | } | |
447 | ||
448 | int | |
449 | mm_newkeys_to_blob(int mode, u_char **blobp, u_int *lenp) | |
450 | { | |
451 | Buffer b; | |
452 | int len; | |
826f3a39 | 453 | Enc *enc; |
454 | Mac *mac; | |
455 | Comp *comp; | |
456 | Newkeys *newkey = newkeys[mode]; | |
457 | ||
44a053a3 | 458 | debug3("%s: converting %p", __func__, newkey); |
826f3a39 | 459 | |
460 | if (newkey == NULL) { | |
44a053a3 | 461 | error("%s: newkey == NULL", __func__); |
826f3a39 | 462 | return 0; |
463 | } | |
464 | enc = &newkey->enc; | |
465 | mac = &newkey->mac; | |
466 | comp = &newkey->comp; | |
467 | ||
468 | buffer_init(&b); | |
469 | /* Enc structure */ | |
470 | buffer_put_cstring(&b, enc->name); | |
471 | /* The cipher struct is constant and shared, you export pointer */ | |
472 | buffer_append(&b, &enc->cipher, sizeof(enc->cipher)); | |
473 | buffer_put_int(&b, enc->enabled); | |
474 | buffer_put_int(&b, enc->block_size); | |
475 | buffer_put_string(&b, enc->key, enc->key_len); | |
476 | packet_get_keyiv(mode, enc->iv, enc->block_size); | |
477 | buffer_put_string(&b, enc->iv, enc->block_size); | |
478 | ||
479 | /* Mac structure */ | |
480 | buffer_put_cstring(&b, mac->name); | |
481 | buffer_put_int(&b, mac->enabled); | |
482 | buffer_put_string(&b, mac->key, mac->key_len); | |
483 | ||
484 | /* Comp structure */ | |
485 | buffer_put_int(&b, comp->type); | |
486 | buffer_put_int(&b, comp->enabled); | |
487 | buffer_put_cstring(&b, comp->name); | |
488 | ||
489 | len = buffer_len(&b); | |
826f3a39 | 490 | if (lenp != NULL) |
491 | *lenp = len; | |
d03f4262 | 492 | if (blobp != NULL) { |
493 | *blobp = xmalloc(len); | |
494 | memcpy(*blobp, buffer_ptr(&b), len); | |
495 | } | |
496 | memset(buffer_ptr(&b), 0, len); | |
497 | buffer_free(&b); | |
826f3a39 | 498 | return len; |
499 | } | |
500 | ||
501 | static void | |
502 | mm_send_kex(Buffer *m, Kex *kex) | |
503 | { | |
504 | buffer_put_string(m, kex->session_id, kex->session_id_len); | |
505 | buffer_put_int(m, kex->we_need); | |
506 | buffer_put_int(m, kex->hostkey_type); | |
507 | buffer_put_int(m, kex->kex_type); | |
508 | buffer_put_string(m, buffer_ptr(&kex->my), buffer_len(&kex->my)); | |
509 | buffer_put_string(m, buffer_ptr(&kex->peer), buffer_len(&kex->peer)); | |
510 | buffer_put_int(m, kex->flags); | |
511 | buffer_put_cstring(m, kex->client_version_string); | |
512 | buffer_put_cstring(m, kex->server_version_string); | |
513 | } | |
514 | ||
515 | void | |
516 | mm_send_keystate(struct monitor *pmonitor) | |
517 | { | |
518 | Buffer m; | |
519 | u_char *blob, *p; | |
520 | u_int bloblen, plen; | |
521 | ||
522 | buffer_init(&m); | |
523 | ||
524 | if (!compat20) { | |
525 | u_char iv[24]; | |
44a053a3 | 526 | u_char *key; |
527 | u_int ivlen, keylen; | |
826f3a39 | 528 | |
529 | buffer_put_int(&m, packet_get_protocol_flags()); | |
530 | ||
531 | buffer_put_int(&m, packet_get_ssh1_cipher()); | |
532 | ||
44a053a3 | 533 | debug3("%s: Sending ssh1 KEY+IV", __func__); |
534 | keylen = packet_get_encryption_key(NULL); | |
535 | key = xmalloc(keylen+1); /* add 1 if keylen == 0 */ | |
536 | keylen = packet_get_encryption_key(key); | |
537 | buffer_put_string(&m, key, keylen); | |
538 | memset(key, 0, keylen); | |
539 | xfree(key); | |
540 | ||
826f3a39 | 541 | ivlen = packet_get_keyiv_len(MODE_OUT); |
542 | packet_get_keyiv(MODE_OUT, iv, ivlen); | |
543 | buffer_put_string(&m, iv, ivlen); | |
544 | ivlen = packet_get_keyiv_len(MODE_OUT); | |
545 | packet_get_keyiv(MODE_IN, iv, ivlen); | |
546 | buffer_put_string(&m, iv, ivlen); | |
547 | goto skip; | |
548 | } else { | |
549 | /* Kex for rekeying */ | |
550 | mm_send_kex(&m, *pmonitor->m_pkex); | |
551 | } | |
552 | ||
553 | debug3("%s: Sending new keys: %p %p", | |
44a053a3 | 554 | __func__, newkeys[MODE_OUT], newkeys[MODE_IN]); |
826f3a39 | 555 | |
556 | /* Keys from Kex */ | |
557 | if (!mm_newkeys_to_blob(MODE_OUT, &blob, &bloblen)) | |
44a053a3 | 558 | fatal("%s: conversion of newkeys failed", __func__); |
826f3a39 | 559 | |
560 | buffer_put_string(&m, blob, bloblen); | |
561 | xfree(blob); | |
562 | ||
563 | if (!mm_newkeys_to_blob(MODE_IN, &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 | buffer_put_int(&m, packet_get_seqnr(MODE_OUT)); | |
570 | buffer_put_int(&m, packet_get_seqnr(MODE_IN)); | |
571 | ||
44a053a3 | 572 | debug3("%s: New keys have been sent", __func__); |
826f3a39 | 573 | skip: |
574 | /* More key context */ | |
575 | plen = packet_get_keycontext(MODE_OUT, NULL); | |
576 | p = xmalloc(plen+1); | |
577 | packet_get_keycontext(MODE_OUT, p); | |
578 | buffer_put_string(&m, p, plen); | |
579 | xfree(p); | |
580 | ||
581 | plen = packet_get_keycontext(MODE_IN, NULL); | |
582 | p = xmalloc(plen+1); | |
583 | packet_get_keycontext(MODE_IN, p); | |
584 | buffer_put_string(&m, p, plen); | |
585 | xfree(p); | |
586 | ||
587 | /* Compression state */ | |
44a053a3 | 588 | debug3("%s: Sending compression state", __func__); |
826f3a39 | 589 | buffer_put_string(&m, &outgoing_stream, sizeof(outgoing_stream)); |
590 | buffer_put_string(&m, &incoming_stream, sizeof(incoming_stream)); | |
591 | ||
592 | /* Network I/O buffers */ | |
593 | buffer_put_string(&m, buffer_ptr(&input), buffer_len(&input)); | |
594 | buffer_put_string(&m, buffer_ptr(&output), buffer_len(&output)); | |
595 | ||
596 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYEXPORT, &m); | |
44a053a3 | 597 | debug3("%s: Finished sending state", __func__); |
826f3a39 | 598 | |
599 | buffer_free(&m); | |
600 | } | |
601 | ||
602 | int | |
603 | mm_pty_allocate(int *ptyfd, int *ttyfd, char *namebuf, int namebuflen) | |
604 | { | |
605 | Buffer m; | |
d03f4262 | 606 | char *p; |
826f3a39 | 607 | int success = 0; |
608 | ||
609 | buffer_init(&m); | |
610 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PTY, &m); | |
611 | ||
44a053a3 | 612 | debug3("%s: waiting for MONITOR_ANS_PTY", __func__); |
826f3a39 | 613 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_PTY, &m); |
614 | ||
615 | success = buffer_get_int(&m); | |
616 | if (success == 0) { | |
44a053a3 | 617 | debug3("%s: pty alloc failed", __func__); |
826f3a39 | 618 | buffer_free(&m); |
619 | return (0); | |
620 | } | |
621 | p = buffer_get_string(&m, NULL); | |
622 | buffer_free(&m); | |
623 | ||
624 | strlcpy(namebuf, p, namebuflen); /* Possible truncation */ | |
625 | xfree(p); | |
626 | ||
627 | *ptyfd = mm_receive_fd(pmonitor->m_recvfd); | |
628 | *ttyfd = mm_receive_fd(pmonitor->m_recvfd); | |
629 | ||
630 | /* Success */ | |
631 | return (1); | |
632 | } | |
633 | ||
634 | void | |
635 | mm_session_pty_cleanup2(void *session) | |
636 | { | |
637 | Session *s = session; | |
638 | Buffer m; | |
639 | ||
640 | if (s->ttyfd == -1) | |
641 | return; | |
642 | buffer_init(&m); | |
643 | buffer_put_cstring(&m, s->tty); | |
644 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PTYCLEANUP, &m); | |
645 | buffer_free(&m); | |
646 | ||
647 | /* closed dup'ed master */ | |
648 | if (close(s->ptymaster) < 0) | |
649 | error("close(s->ptymaster): %s", strerror(errno)); | |
650 | ||
651 | /* unlink pty from session */ | |
652 | s->ttyfd = -1; | |
653 | } | |
654 | ||
655 | #ifdef USE_PAM | |
656 | void | |
657 | mm_start_pam(char *user) | |
658 | { | |
659 | Buffer m; | |
660 | ||
44a053a3 | 661 | debug3("%s entering", __func__); |
826f3a39 | 662 | |
663 | buffer_init(&m); | |
664 | buffer_put_cstring(&m, user); | |
665 | ||
666 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PAM_START, &m); | |
667 | ||
668 | buffer_free(&m); | |
669 | } | |
670 | #endif /* USE_PAM */ | |
671 | ||
672 | /* Request process termination */ | |
673 | ||
674 | void | |
675 | mm_terminate(void) | |
676 | { | |
677 | Buffer m; | |
678 | ||
679 | buffer_init(&m); | |
680 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_TERM, &m); | |
681 | buffer_free(&m); | |
682 | } | |
683 | ||
684 | int | |
685 | mm_ssh1_session_key(BIGNUM *num) | |
686 | { | |
687 | int rsafail; | |
688 | Buffer m; | |
689 | ||
690 | buffer_init(&m); | |
691 | buffer_put_bignum2(&m, num); | |
692 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SESSKEY, &m); | |
693 | ||
694 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SESSKEY, &m); | |
695 | ||
696 | rsafail = buffer_get_int(&m); | |
697 | buffer_get_bignum2(&m, num); | |
698 | ||
699 | buffer_free(&m); | |
700 | ||
701 | return (rsafail); | |
702 | } | |
703 | ||
704 | static void | |
705 | mm_chall_setup(char **name, char **infotxt, u_int *numprompts, | |
706 | char ***prompts, u_int **echo_on) | |
707 | { | |
44a053a3 | 708 | *name = xstrdup(""); |
709 | *infotxt = xstrdup(""); | |
826f3a39 | 710 | *numprompts = 1; |
d03f4262 | 711 | *prompts = xmalloc(*numprompts * sizeof(char *)); |
826f3a39 | 712 | *echo_on = xmalloc(*numprompts * sizeof(u_int)); |
713 | (*echo_on)[0] = 0; | |
714 | } | |
715 | ||
716 | int | |
717 | mm_bsdauth_query(void *ctx, char **name, char **infotxt, | |
718 | u_int *numprompts, char ***prompts, u_int **echo_on) | |
719 | { | |
720 | Buffer m; | |
721 | int res; | |
722 | char *challenge; | |
723 | ||
44a053a3 | 724 | debug3("%s: entering", __func__); |
826f3a39 | 725 | |
726 | buffer_init(&m); | |
727 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_BSDAUTHQUERY, &m); | |
728 | ||
729 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_BSDAUTHQUERY, | |
730 | &m); | |
731 | res = buffer_get_int(&m); | |
732 | if (res == -1) { | |
44a053a3 | 733 | debug3("%s: no challenge", __func__); |
826f3a39 | 734 | buffer_free(&m); |
735 | return (-1); | |
736 | } | |
737 | ||
738 | /* Get the challenge, and format the response */ | |
739 | challenge = buffer_get_string(&m, NULL); | |
740 | buffer_free(&m); | |
741 | ||
742 | mm_chall_setup(name, infotxt, numprompts, prompts, echo_on); | |
743 | (*prompts)[0] = challenge; | |
744 | ||
44a053a3 | 745 | debug3("%s: received challenge: %s", __func__, challenge); |
826f3a39 | 746 | |
747 | return (0); | |
748 | } | |
749 | ||
750 | int | |
751 | mm_bsdauth_respond(void *ctx, u_int numresponses, char **responses) | |
752 | { | |
753 | Buffer m; | |
754 | int authok; | |
755 | ||
44a053a3 | 756 | debug3("%s: entering", __func__); |
826f3a39 | 757 | if (numresponses != 1) |
758 | return (-1); | |
759 | ||
760 | buffer_init(&m); | |
761 | buffer_put_cstring(&m, responses[0]); | |
762 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_BSDAUTHRESPOND, &m); | |
763 | ||
764 | mm_request_receive_expect(pmonitor->m_recvfd, | |
765 | MONITOR_ANS_BSDAUTHRESPOND, &m); | |
766 | ||
767 | authok = buffer_get_int(&m); | |
768 | buffer_free(&m); | |
769 | ||
770 | return ((authok == 0) ? -1 : 0); | |
771 | } | |
772 | ||
773 | int | |
774 | mm_skey_query(void *ctx, char **name, char **infotxt, | |
775 | u_int *numprompts, char ***prompts, u_int **echo_on) | |
776 | { | |
777 | Buffer m; | |
778 | int len, res; | |
779 | char *p, *challenge; | |
780 | ||
44a053a3 | 781 | debug3("%s: entering", __func__); |
826f3a39 | 782 | |
783 | buffer_init(&m); | |
784 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SKEYQUERY, &m); | |
785 | ||
786 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SKEYQUERY, | |
787 | &m); | |
788 | res = buffer_get_int(&m); | |
789 | if (res == -1) { | |
44a053a3 | 790 | debug3("%s: no challenge", __func__); |
826f3a39 | 791 | buffer_free(&m); |
792 | return (-1); | |
793 | } | |
794 | ||
795 | /* Get the challenge, and format the response */ | |
796 | challenge = buffer_get_string(&m, NULL); | |
797 | buffer_free(&m); | |
798 | ||
44a053a3 | 799 | debug3("%s: received challenge: %s", __func__, challenge); |
826f3a39 | 800 | |
801 | mm_chall_setup(name, infotxt, numprompts, prompts, echo_on); | |
802 | ||
803 | len = strlen(challenge) + strlen(SKEY_PROMPT) + 1; | |
804 | p = xmalloc(len); | |
805 | strlcpy(p, challenge, len); | |
806 | strlcat(p, SKEY_PROMPT, len); | |
807 | (*prompts)[0] = p; | |
808 | xfree(challenge); | |
809 | ||
810 | return (0); | |
811 | } | |
812 | ||
813 | int | |
814 | mm_skey_respond(void *ctx, u_int numresponses, char **responses) | |
815 | { | |
816 | Buffer m; | |
817 | int authok; | |
818 | ||
44a053a3 | 819 | debug3("%s: entering", __func__); |
826f3a39 | 820 | if (numresponses != 1) |
821 | return (-1); | |
822 | ||
823 | buffer_init(&m); | |
824 | buffer_put_cstring(&m, responses[0]); | |
825 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SKEYRESPOND, &m); | |
826 | ||
827 | mm_request_receive_expect(pmonitor->m_recvfd, | |
828 | MONITOR_ANS_SKEYRESPOND, &m); | |
829 | ||
830 | authok = buffer_get_int(&m); | |
831 | buffer_free(&m); | |
832 | ||
833 | return ((authok == 0) ? -1 : 0); | |
834 | } | |
835 | ||
836 | void | |
837 | mm_ssh1_session_id(u_char session_id[16]) | |
838 | { | |
839 | Buffer m; | |
840 | int i; | |
841 | ||
44a053a3 | 842 | debug3("%s entering", __func__); |
826f3a39 | 843 | |
844 | buffer_init(&m); | |
845 | for (i = 0; i < 16; i++) | |
846 | buffer_put_char(&m, session_id[i]); | |
847 | ||
848 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SESSID, &m); | |
849 | buffer_free(&m); | |
850 | } | |
851 | ||
852 | int | |
853 | mm_auth_rsa_key_allowed(struct passwd *pw, BIGNUM *client_n, Key **rkey) | |
854 | { | |
855 | Buffer m; | |
856 | Key *key; | |
857 | u_char *blob; | |
858 | u_int blen; | |
859 | int allowed = 0; | |
860 | ||
44a053a3 | 861 | debug3("%s entering", __func__); |
826f3a39 | 862 | |
863 | buffer_init(&m); | |
864 | buffer_put_bignum2(&m, client_n); | |
865 | ||
866 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSAKEYALLOWED, &m); | |
867 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSAKEYALLOWED, &m); | |
868 | ||
869 | allowed = buffer_get_int(&m); | |
870 | ||
871 | if (allowed && rkey != NULL) { | |
872 | blob = buffer_get_string(&m, &blen); | |
873 | if ((key = key_from_blob(blob, blen)) == NULL) | |
44a053a3 | 874 | fatal("%s: key_from_blob failed", __func__); |
826f3a39 | 875 | *rkey = key; |
876 | xfree(blob); | |
877 | } | |
878 | mm_send_debug(&m); | |
879 | buffer_free(&m); | |
880 | ||
881 | return (allowed); | |
882 | } | |
883 | ||
884 | BIGNUM * | |
885 | mm_auth_rsa_generate_challenge(Key *key) | |
886 | { | |
887 | Buffer m; | |
888 | BIGNUM *challenge; | |
889 | u_char *blob; | |
890 | u_int blen; | |
891 | ||
44a053a3 | 892 | debug3("%s entering", __func__); |
826f3a39 | 893 | |
894 | if ((challenge = BN_new()) == NULL) | |
44a053a3 | 895 | fatal("%s: BN_new failed", __func__); |
826f3a39 | 896 | |
897 | key->type = KEY_RSA; /* XXX cheat for key_to_blob */ | |
898 | if (key_to_blob(key, &blob, &blen) == 0) | |
44a053a3 | 899 | fatal("%s: key_to_blob failed", __func__); |
826f3a39 | 900 | key->type = KEY_RSA1; |
901 | ||
902 | buffer_init(&m); | |
903 | buffer_put_string(&m, blob, blen); | |
904 | xfree(blob); | |
905 | ||
906 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSACHALLENGE, &m); | |
907 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSACHALLENGE, &m); | |
908 | ||
909 | buffer_get_bignum2(&m, challenge); | |
910 | buffer_free(&m); | |
911 | ||
912 | return (challenge); | |
913 | } | |
914 | ||
915 | int | |
916 | mm_auth_rsa_verify_response(Key *key, BIGNUM *p, u_char response[16]) | |
917 | { | |
918 | Buffer m; | |
919 | u_char *blob; | |
920 | u_int blen; | |
921 | int success = 0; | |
922 | ||
44a053a3 | 923 | debug3("%s entering", __func__); |
826f3a39 | 924 | |
925 | key->type = KEY_RSA; /* XXX cheat for key_to_blob */ | |
926 | if (key_to_blob(key, &blob, &blen) == 0) | |
44a053a3 | 927 | fatal("%s: key_to_blob failed", __func__); |
826f3a39 | 928 | key->type = KEY_RSA1; |
929 | ||
930 | buffer_init(&m); | |
931 | buffer_put_string(&m, blob, blen); | |
932 | buffer_put_string(&m, response, 16); | |
933 | xfree(blob); | |
934 | ||
935 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSARESPONSE, &m); | |
936 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSARESPONSE, &m); | |
937 | ||
938 | success = buffer_get_int(&m); | |
939 | buffer_free(&m); | |
940 | ||
941 | return (success); | |
942 | } | |
b59afbfe | 943 | #ifdef GSSAPI |
944 | OM_uint32 | |
945 | mm_ssh_gssapi_server_ctx(Gssctxt **ctx, gss_OID oid) { | |
946 | Buffer m; | |
947 | OM_uint32 major; | |
948 | ||
949 | /* Client doesn't get to see the context */ | |
950 | *ctx=NULL; | |
951 | ||
952 | buffer_init(&m); | |
953 | buffer_put_string(&m,oid->elements,oid->length); | |
954 | ||
955 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSETUP, &m); | |
956 | ||
957 | debug3("%s: waiting for MONITOR_ANS_GSSSETUP",__func__); | |
958 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSETUP, &m); | |
959 | major=buffer_get_int(&m); | |
960 | ||
961 | return(major); | |
962 | } | |
963 | ||
964 | OM_uint32 | |
965 | mm_ssh_gssapi_accept_ctx(Gssctxt *ctx, gss_buffer_desc *in, | |
966 | gss_buffer_desc *out, OM_uint32 *flags) { | |
967 | ||
968 | Buffer m; | |
969 | OM_uint32 major; | |
970 | ||
971 | buffer_init(&m); | |
972 | buffer_put_string(&m, in->value, in->length); | |
973 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSTEP, &m); | |
974 | ||
975 | debug3("%s: waiting for MONITOR_ANS_GSSSTEP", __func__); | |
976 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSTEP, &m); | |
977 | ||
978 | major=buffer_get_int(&m); | |
979 | out->value=buffer_get_string(&m,&out->length); | |
980 | if (flags) *flags=buffer_get_int(&m); | |
981 | ||
982 | return(major); | |
983 | } | |
984 | ||
985 | int | |
986 | mm_ssh_gssapi_userok(char *user) { | |
987 | Buffer m; | |
988 | int authenticated = 0; | |
989 | ||
990 | buffer_init(&m); | |
991 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSUSEROK, &m); | |
992 | ||
993 | debug3("%s: waiting for MONITOR_ANS_GSSUSEROK", __func__); | |
994 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSUSEROK, | |
995 | &m); | |
996 | ||
997 | authenticated = buffer_get_int(&m); | |
998 | ||
999 | buffer_free(&m); | |
1000 | debug3("%s: user %sauthenticated",__func__, authenticated ? "" : "not "); | |
1001 | return(authenticated); | |
1002 | } | |
1003 | ||
1004 | int | |
1005 | mm_ssh_gssapi_localname(char **lname) | |
1006 | { | |
1007 | Buffer m; | |
1008 | ||
1009 | buffer_init(&m); | |
1010 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSLOCALNAME, &m); | |
1011 | ||
1012 | debug3("%s: waiting for MONITOR_ANS_GSSLOCALNAME", __func__); | |
1013 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSLOCALNAME, | |
1014 | &m); | |
1015 | ||
1016 | *lname = buffer_get_string(&m, NULL); | |
1017 | ||
1018 | buffer_free(&m); | |
1019 | if (lname[0] == '\0') { | |
1020 | debug3("%s: gssapi identity mapping failed", __func__); | |
1021 | } else { | |
1022 | debug3("%s: gssapi identity mapped to %s", __func__, *lname); | |
1023 | } | |
1024 | ||
1025 | return(0); | |
1026 | } | |
1027 | ||
1028 | OM_uint32 | |
1029 | mm_ssh_gssapi_sign(Gssctxt *ctx, gss_buffer_desc *data, gss_buffer_desc *hash) { | |
1030 | Buffer m; | |
1031 | OM_uint32 major; | |
1032 | ||
1033 | buffer_init(&m); | |
1034 | buffer_put_string(&m, data->value, data->length); | |
1035 | ||
1036 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSIGN, &m); | |
1037 | ||
1038 | debug3("%s: waiting for MONITOR_ANS_GSSSIGN",__func__); | |
1039 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSIGN, &m); | |
1040 | major=buffer_get_int(&m); | |
1041 | hash->value = buffer_get_string(&m, &hash->length); | |
1042 | ||
1043 | return(major); | |
1044 | } | |
9eeaa28e | 1045 | |
1046 | OM_uint32 | |
1047 | mm_gss_indicate_mechs(OM_uint32 *minor_status, gss_OID_set *mech_set) | |
1048 | { | |
1049 | Buffer m; | |
1050 | OM_uint32 major; | |
1051 | int i=0; | |
1052 | ||
1053 | buffer_init(&m); | |
1054 | ||
1055 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSMECHS, &m); | |
1056 | ||
1057 | debug3("%s: waiting for MONITOR_ANS_GSSMECHS",__func__); | |
1058 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSMECHS, | |
1059 | &m); | |
1060 | major=buffer_get_int(&m); | |
1061 | *mech_set = xmalloc(sizeof(gss_OID_set_desc)); | |
1062 | (*mech_set)->count=buffer_get_int(&m); | |
1063 | (*mech_set)->elements=xmalloc(sizeof(gss_OID_desc)*(*mech_set)->count); | |
1064 | for (i=0; i < (*mech_set)->count; i++) { | |
1065 | u_int length; | |
1066 | (*mech_set)->elements[i].elements=buffer_get_string(&m, &length); | |
1067 | (*mech_set)->elements[i].length = length; | |
1068 | } | |
1069 | ||
1070 | return(major); | |
1071 | } | |
1072 | ||
1073 | OM_uint32 | |
1074 | mm_gss_display_status(OM_uint32 *minor_status, OM_uint32 status_value, | |
1075 | int status_type, const gss_OID mech_type, | |
1076 | OM_uint32 *message_context, gss_buffer_t status_string) | |
1077 | { | |
1078 | Buffer m; | |
1079 | OM_uint32 major; | |
1080 | ||
1081 | buffer_init(&m); | |
1082 | ||
1083 | buffer_put_int(&m, status_value); | |
1084 | buffer_put_int(&m, status_type); | |
1085 | if (mech_type) { | |
1086 | buffer_put_string(&m, mech_type->elements, mech_type->length); | |
1087 | } else { | |
1088 | buffer_put_string(&m, "", 0); | |
1089 | } | |
1090 | if (message_context) { | |
1091 | buffer_put_int(&m, *message_context); | |
1092 | } else { | |
1093 | buffer_put_int(&m, 0); | |
1094 | } | |
1095 | ||
1096 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSTAT, &m); | |
1097 | ||
1098 | debug3("%s: waiting for MONITOR_ANS_GSSMECHS",__func__); | |
1099 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSTAT, | |
1100 | &m); | |
1101 | ||
1102 | if (message_context) { | |
1103 | *message_context = buffer_get_int(&m); | |
1104 | } else { | |
1105 | buffer_get_int(&m); | |
1106 | } | |
1107 | status_string->value = buffer_get_string(&m, &status_string->length); | |
1108 | ||
1109 | return major; | |
1110 | } | |
b59afbfe | 1111 | #endif /* GSSAPI */ |
1112 | ||
1113 | #ifdef GSI | |
1114 | ||
1115 | int mm_gsi_gridmap(char *subject_name, char **lname) | |
1116 | { | |
1117 | Buffer m; | |
1118 | ||
1119 | buffer_init(&m); | |
1120 | buffer_put_cstring(&m, subject_name); | |
1121 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSIGRIDMAP, &m); | |
1122 | ||
1123 | debug3("%s: waiting for MONITOR_ANS_GSIGRIDMAP", __func__); | |
1124 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSIGRIDMAP, | |
1125 | &m); | |
1126 | ||
1127 | *lname = buffer_get_string(&m, NULL); | |
1128 | ||
1129 | buffer_free(&m); | |
1130 | if (lname[0] == '\0') { | |
1131 | debug3("%s: gssapi identity %s mapping failed", __func__, | |
1132 | subject_name); | |
1133 | } else { | |
1134 | debug3("%s: gssapi identity %s mapped to %s", __func__, | |
1135 | subject_name, *lname); | |
1136 | } | |
1137 | ||
1138 | return(0); | |
1139 | ||
1140 | } | |
1141 | ||
1142 | #endif /* GSI */ | |
d03f4262 | 1143 | |
1144 | #ifdef KRB4 | |
1145 | int | |
1146 | mm_auth_krb4(Authctxt *authctxt, void *_auth, char **client, void *_reply) | |
1147 | { | |
1148 | KTEXT auth, reply; | |
1149 | Buffer m; | |
1150 | u_int rlen; | |
1151 | int success = 0; | |
1152 | char *p; | |
1153 | ||
1154 | debug3("%s entering", __func__); | |
1155 | auth = _auth; | |
1156 | reply = _reply; | |
1157 | ||
1158 | buffer_init(&m); | |
1159 | buffer_put_string(&m, auth->dat, auth->length); | |
1160 | ||
1161 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KRB4, &m); | |
1162 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KRB4, &m); | |
1163 | ||
1164 | success = buffer_get_int(&m); | |
1165 | if (success) { | |
1166 | *client = buffer_get_string(&m, NULL); | |
1167 | p = buffer_get_string(&m, &rlen); | |
1168 | if (rlen >= MAX_KTXT_LEN) | |
1169 | fatal("%s: reply from monitor too large", __func__); | |
1170 | reply->length = rlen; | |
1171 | memcpy(reply->dat, p, rlen); | |
1172 | memset(p, 0, rlen); | |
1173 | xfree(p); | |
1174 | } | |
1175 | buffer_free(&m); | |
1176 | return (success); | |
1177 | } | |
1178 | #endif | |
1179 | ||
1180 | #ifdef KRB5 | |
1181 | int | |
1182 | mm_auth_krb5(void *ctx, void *argp, char **userp, void *resp) | |
1183 | { | |
1184 | krb5_data *tkt, *reply; | |
1185 | Buffer m; | |
1186 | int success; | |
1187 | ||
1188 | debug3("%s entering", __func__); | |
1189 | tkt = (krb5_data *) argp; | |
1190 | reply = (krb5_data *) resp; | |
1191 | ||
1192 | buffer_init(&m); | |
1193 | buffer_put_string(&m, tkt->data, tkt->length); | |
1194 | ||
1195 | mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KRB5, &m); | |
1196 | mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KRB5, &m); | |
1197 | ||
1198 | success = buffer_get_int(&m); | |
1199 | if (success) { | |
1200 | u_int len; | |
1201 | ||
1202 | *userp = buffer_get_string(&m, NULL); | |
1203 | reply->data = buffer_get_string(&m, &len); | |
1204 | reply->length = len; | |
1205 | } else { | |
1206 | memset(reply, 0, sizeof(*reply)); | |
1207 | *userp = NULL; | |
1208 | } | |
1209 | ||
1210 | buffer_free(&m); | |
1211 | return (success); | |
1212 | } | |
1213 | #endif |