2 * Copyright 2002 Niels Provos <provos@citi.umich.edu>
3 * Copyright 2002 Markus Friedl <markus@openbsd.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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.
28 RCSID("$OpenBSD: monitor_wrap.c,v 1.19 2002/09/26 11:38:43 markus Exp $");
30 #include <openssl/bn.h>
31 #include <openssl/dh.h>
44 #include "monitor_wrap.h"
47 #include "monitor_fdpass.h"
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;
67 mm_request_send(int socket, enum monitor_reqtype type, Buffer *m)
69 u_int mlen = buffer_len(m);
72 debug3("%s entering: type %d", __func__, type);
74 PUT_32BIT(buf, mlen + 1);
75 buf[4] = (u_char) type; /* 1st byte of payload is mesg-type */
76 if (atomicio(write, socket, buf, sizeof(buf)) != sizeof(buf))
77 fatal("%s: write", __func__);
78 if (atomicio(write, socket, buffer_ptr(m), mlen) != mlen)
79 fatal("%s: write", __func__);
83 mm_request_receive(int socket, Buffer *m)
89 debug3("%s entering", __func__);
91 res = atomicio(read, socket, buf, sizeof(buf));
92 if (res != sizeof(buf)) {
95 fatal("%s: read: %ld", __func__, (long)res);
97 msg_len = GET_32BIT(buf);
98 if (msg_len > 256 * 1024)
99 fatal("%s: read: bad msg_len %d", __func__, msg_len);
101 buffer_append_space(m, msg_len);
102 res = atomicio(read, socket, buffer_ptr(m), msg_len);
104 fatal("%s: read: %ld != msg_len", __func__, (long)res);
108 mm_request_receive_expect(int socket, enum monitor_reqtype type, Buffer *m)
112 debug3("%s entering: type %d", __func__, type);
114 mm_request_receive(socket, m);
115 rtype = buffer_get_char(m);
117 fatal("%s: read: rtype %d != type %d", __func__,
122 mm_choose_dh(int min, int nbits, int max)
129 buffer_put_int(&m, min);
130 buffer_put_int(&m, nbits);
131 buffer_put_int(&m, max);
133 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_MODULI, &m);
135 debug3("%s: waiting for MONITOR_ANS_MODULI", __func__);
136 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_MODULI, &m);
138 success = buffer_get_char(&m);
140 fatal("%s: MONITOR_ANS_MODULI failed", __func__);
142 if ((p = BN_new()) == NULL)
143 fatal("%s: BN_new failed", __func__);
144 if ((g = BN_new()) == NULL)
145 fatal("%s: BN_new failed", __func__);
146 buffer_get_bignum2(&m, p);
147 buffer_get_bignum2(&m, g);
149 debug3("%s: remaining %d", __func__, buffer_len(&m));
152 return (dh_new_group(g, p));
156 mm_key_sign(Key *key, u_char **sigp, u_int *lenp, u_char *data, u_int datalen)
158 Kex *kex = *pmonitor->m_pkex;
161 debug3("%s entering", __func__);
164 buffer_put_int(&m, kex->host_key_index(key));
165 buffer_put_string(&m, data, datalen);
167 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SIGN, &m);
169 debug3("%s: waiting for MONITOR_ANS_SIGN", __func__);
170 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SIGN, &m);
171 *sigp = buffer_get_string(&m, lenp);
178 mm_getpwnamallow(const char *login)
184 debug3("%s entering", __func__);
187 buffer_put_cstring(&m, login);
189 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PWNAM, &m);
191 debug3("%s: waiting for MONITOR_ANS_PWNAM", __func__);
192 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_PWNAM, &m);
194 if (buffer_get_char(&m) == 0) {
198 pw = buffer_get_string(&m, &pwlen);
199 if (pwlen != sizeof(struct passwd))
200 fatal("%s: struct passwd size mismatch", __func__);
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);
207 pw->pw_dir = buffer_get_string(&m, NULL);
208 pw->pw_shell = buffer_get_string(&m, NULL);
214 char *mm_auth2_read_banner(void)
219 debug3("%s entering", __func__);
222 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTH2_READ_BANNER, &m);
225 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_AUTH2_READ_BANNER, &m);
226 banner = buffer_get_string(&m, NULL);
232 /* Inform the privileged process about service and style */
235 mm_inform_authserv(char *service, char *style)
239 debug3("%s entering", __func__);
242 buffer_put_cstring(&m, service);
243 buffer_put_cstring(&m, style ? style : "");
245 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHSERV, &m);
250 /* Do the password authentication */
252 mm_auth_password(Authctxt *authctxt, char *password)
255 int authenticated = 0;
257 debug3("%s entering", __func__);
260 buffer_put_cstring(&m, password);
261 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHPASSWORD, &m);
263 debug3("%s: waiting for MONITOR_ANS_AUTHPASSWORD", __func__);
264 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_AUTHPASSWORD, &m);
266 authenticated = buffer_get_int(&m);
270 debug3("%s: user %sauthenticated",
271 __func__, authenticated ? "" : "not ");
272 return (authenticated);
276 mm_user_key_allowed(struct passwd *pw, Key *key)
278 return (mm_key_allowed(MM_USERKEY, NULL, NULL, key));
282 mm_hostbased_key_allowed(struct passwd *pw, char *user, char *host,
285 return (mm_key_allowed(MM_HOSTKEY, user, host, key));
289 mm_auth_rhosts_rsa_key_allowed(struct passwd *pw, char *user,
290 char *host, Key *key)
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;
301 mm_send_debug(Buffer *m)
305 while (buffer_len(m)) {
306 msg = buffer_get_string(m, NULL);
307 debug3("%s: Sending debug: %s", __func__, msg);
308 packet_send_debug("%s", msg);
314 mm_key_allowed(enum mm_keytype type, char *user, char *host, Key *key)
321 debug3("%s entering", __func__);
323 /* Convert the key to a blob and the pass it over */
324 if (!key_to_blob(key, &blob, &len))
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);
334 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYALLOWED, &m);
336 debug3("%s: waiting for MONITOR_ANS_KEYALLOWED", __func__);
337 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KEYALLOWED, &m);
339 allowed = buffer_get_int(&m);
341 /* Send potential debug messages */
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.
356 mm_key_verify(Key *key, u_char *sig, u_int siglen, u_char *data, u_int datalen)
363 debug3("%s entering", __func__);
365 /* Convert the key to a blob and the pass it over */
366 if (!key_to_blob(key, &blob, &len))
370 buffer_put_string(&m, blob, len);
371 buffer_put_string(&m, sig, siglen);
372 buffer_put_string(&m, data, datalen);
375 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYVERIFY, &m);
377 debug3("%s: waiting for MONITOR_ANS_KEYVERIFY", __func__);
378 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KEYVERIFY, &m);
380 verified = buffer_get_int(&m);
387 /* Export key state after authentication */
389 mm_newkeys_from_blob(u_char *blob, int blen)
393 Newkeys *newkey = NULL;
398 debug3("%s: %p(%d)", __func__, blob, blen);
400 dump_base64(stderr, blob, blen);
403 buffer_append(&b, blob, blen);
405 newkey = xmalloc(sizeof(*newkey));
408 comp = &newkey->comp;
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)
418 fatal("%s: bad ivlen: expected %u != %u", __func__,
419 enc->block_size, len);
421 if (enc->name == NULL || cipher_by_name(enc->name) != enc->cipher)
422 fatal("%s: bad cipher name %s or pointer %p", __func__,
423 enc->name, enc->cipher);
426 mac->name = buffer_get_string(&b, NULL);
427 if (mac->name == NULL || mac_init(mac, mac->name) == -1)
428 fatal("%s: can not init mac %s", __func__, mac->name);
429 mac->enabled = buffer_get_int(&b);
430 mac->key = buffer_get_string(&b, &len);
431 if (len > mac->key_len)
432 fatal("%s: bad mac key length: %u > %d", __func__, len,
437 comp->type = buffer_get_int(&b);
438 comp->enabled = buffer_get_int(&b);
439 comp->name = buffer_get_string(&b, NULL);
441 len = buffer_len(&b);
443 error("newkeys_from_blob: remaining bytes in blob %u", len);
449 mm_newkeys_to_blob(int mode, u_char **blobp, u_int *lenp)
456 Newkeys *newkey = newkeys[mode];
458 debug3("%s: converting %p", __func__, newkey);
460 if (newkey == NULL) {
461 error("%s: newkey == NULL", __func__);
466 comp = &newkey->comp;
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);
480 buffer_put_cstring(&b, mac->name);
481 buffer_put_int(&b, mac->enabled);
482 buffer_put_string(&b, mac->key, mac->key_len);
485 buffer_put_int(&b, comp->type);
486 buffer_put_int(&b, comp->enabled);
487 buffer_put_cstring(&b, comp->name);
489 len = buffer_len(&b);
493 *blobp = xmalloc(len);
494 memcpy(*blobp, buffer_ptr(&b), len);
496 memset(buffer_ptr(&b), 0, len);
502 mm_send_kex(Buffer *m, Kex *kex)
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);
516 mm_send_keystate(struct monitor *pmonitor)
529 buffer_put_int(&m, packet_get_protocol_flags());
531 buffer_put_int(&m, packet_get_ssh1_cipher());
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);
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);
549 /* Kex for rekeying */
550 mm_send_kex(&m, *pmonitor->m_pkex);
553 debug3("%s: Sending new keys: %p %p",
554 __func__, newkeys[MODE_OUT], newkeys[MODE_IN]);
557 if (!mm_newkeys_to_blob(MODE_OUT, &blob, &bloblen))
558 fatal("%s: conversion of newkeys failed", __func__);
560 buffer_put_string(&m, blob, bloblen);
563 if (!mm_newkeys_to_blob(MODE_IN, &blob, &bloblen))
564 fatal("%s: conversion of newkeys failed", __func__);
566 buffer_put_string(&m, blob, bloblen);
569 buffer_put_int(&m, packet_get_seqnr(MODE_OUT));
570 buffer_put_int(&m, packet_get_seqnr(MODE_IN));
572 debug3("%s: New keys have been sent", __func__);
574 /* More key context */
575 plen = packet_get_keycontext(MODE_OUT, NULL);
577 packet_get_keycontext(MODE_OUT, p);
578 buffer_put_string(&m, p, plen);
581 plen = packet_get_keycontext(MODE_IN, NULL);
583 packet_get_keycontext(MODE_IN, p);
584 buffer_put_string(&m, p, plen);
587 /* Compression state */
588 debug3("%s: Sending compression state", __func__);
589 buffer_put_string(&m, &outgoing_stream, sizeof(outgoing_stream));
590 buffer_put_string(&m, &incoming_stream, sizeof(incoming_stream));
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));
596 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYEXPORT, &m);
597 debug3("%s: Finished sending state", __func__);
603 mm_pty_allocate(int *ptyfd, int *ttyfd, char *namebuf, int namebuflen)
610 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PTY, &m);
612 debug3("%s: waiting for MONITOR_ANS_PTY", __func__);
613 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_PTY, &m);
615 success = buffer_get_int(&m);
617 debug3("%s: pty alloc failed", __func__);
621 p = buffer_get_string(&m, NULL);
624 strlcpy(namebuf, p, namebuflen); /* Possible truncation */
627 *ptyfd = mm_receive_fd(pmonitor->m_recvfd);
628 *ttyfd = mm_receive_fd(pmonitor->m_recvfd);
635 mm_session_pty_cleanup2(void *session)
637 Session *s = session;
643 buffer_put_cstring(&m, s->tty);
644 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PTYCLEANUP, &m);
647 /* closed dup'ed master */
648 if (close(s->ptymaster) < 0)
649 error("close(s->ptymaster): %s", strerror(errno));
651 /* unlink pty from session */
657 mm_start_pam(char *user)
661 debug3("%s entering", __func__);
664 buffer_put_cstring(&m, user);
666 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PAM_START, &m);
672 /* Request process termination */
680 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_TERM, &m);
685 mm_ssh1_session_key(BIGNUM *num)
691 buffer_put_bignum2(&m, num);
692 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SESSKEY, &m);
694 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SESSKEY, &m);
696 rsafail = buffer_get_int(&m);
697 buffer_get_bignum2(&m, num);
705 mm_chall_setup(char **name, char **infotxt, u_int *numprompts,
706 char ***prompts, u_int **echo_on)
709 *infotxt = xstrdup("");
711 *prompts = xmalloc(*numprompts * sizeof(char *));
712 *echo_on = xmalloc(*numprompts * sizeof(u_int));
717 mm_bsdauth_query(void *ctx, char **name, char **infotxt,
718 u_int *numprompts, char ***prompts, u_int **echo_on)
724 debug3("%s: entering", __func__);
727 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_BSDAUTHQUERY, &m);
729 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_BSDAUTHQUERY,
731 res = buffer_get_int(&m);
733 debug3("%s: no challenge", __func__);
738 /* Get the challenge, and format the response */
739 challenge = buffer_get_string(&m, NULL);
742 mm_chall_setup(name, infotxt, numprompts, prompts, echo_on);
743 (*prompts)[0] = challenge;
745 debug3("%s: received challenge: %s", __func__, challenge);
751 mm_bsdauth_respond(void *ctx, u_int numresponses, char **responses)
756 debug3("%s: entering", __func__);
757 if (numresponses != 1)
761 buffer_put_cstring(&m, responses[0]);
762 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_BSDAUTHRESPOND, &m);
764 mm_request_receive_expect(pmonitor->m_recvfd,
765 MONITOR_ANS_BSDAUTHRESPOND, &m);
767 authok = buffer_get_int(&m);
770 return ((authok == 0) ? -1 : 0);
774 mm_skey_query(void *ctx, char **name, char **infotxt,
775 u_int *numprompts, char ***prompts, u_int **echo_on)
781 debug3("%s: entering", __func__);
784 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SKEYQUERY, &m);
786 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SKEYQUERY,
788 res = buffer_get_int(&m);
790 debug3("%s: no challenge", __func__);
795 /* Get the challenge, and format the response */
796 challenge = buffer_get_string(&m, NULL);
799 debug3("%s: received challenge: %s", __func__, challenge);
801 mm_chall_setup(name, infotxt, numprompts, prompts, echo_on);
803 len = strlen(challenge) + strlen(SKEY_PROMPT) + 1;
805 strlcpy(p, challenge, len);
806 strlcat(p, SKEY_PROMPT, len);
814 mm_skey_respond(void *ctx, u_int numresponses, char **responses)
819 debug3("%s: entering", __func__);
820 if (numresponses != 1)
824 buffer_put_cstring(&m, responses[0]);
825 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SKEYRESPOND, &m);
827 mm_request_receive_expect(pmonitor->m_recvfd,
828 MONITOR_ANS_SKEYRESPOND, &m);
830 authok = buffer_get_int(&m);
833 return ((authok == 0) ? -1 : 0);
837 mm_ssh1_session_id(u_char session_id[16])
842 debug3("%s entering", __func__);
845 for (i = 0; i < 16; i++)
846 buffer_put_char(&m, session_id[i]);
848 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SESSID, &m);
853 mm_auth_rsa_key_allowed(struct passwd *pw, BIGNUM *client_n, Key **rkey)
861 debug3("%s entering", __func__);
864 buffer_put_bignum2(&m, client_n);
866 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSAKEYALLOWED, &m);
867 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSAKEYALLOWED, &m);
869 allowed = buffer_get_int(&m);
871 if (allowed && rkey != NULL) {
872 blob = buffer_get_string(&m, &blen);
873 if ((key = key_from_blob(blob, blen)) == NULL)
874 fatal("%s: key_from_blob failed", __func__);
885 mm_auth_rsa_generate_challenge(Key *key)
892 debug3("%s entering", __func__);
894 if ((challenge = BN_new()) == NULL)
895 fatal("%s: BN_new failed", __func__);
897 key->type = KEY_RSA; /* XXX cheat for key_to_blob */
898 if (key_to_blob(key, &blob, &blen) == 0)
899 fatal("%s: key_to_blob failed", __func__);
900 key->type = KEY_RSA1;
903 buffer_put_string(&m, blob, blen);
906 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSACHALLENGE, &m);
907 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSACHALLENGE, &m);
909 buffer_get_bignum2(&m, challenge);
916 mm_auth_rsa_verify_response(Key *key, BIGNUM *p, u_char response[16])
923 debug3("%s entering", __func__);
925 key->type = KEY_RSA; /* XXX cheat for key_to_blob */
926 if (key_to_blob(key, &blob, &blen) == 0)
927 fatal("%s: key_to_blob failed", __func__);
928 key->type = KEY_RSA1;
931 buffer_put_string(&m, blob, blen);
932 buffer_put_string(&m, response, 16);
935 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSARESPONSE, &m);
936 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSARESPONSE, &m);
938 success = buffer_get_int(&m);
945 mm_ssh_gssapi_server_ctx(Gssctxt **ctx, gss_OID oid) {
949 /* Client doesn't get to see the context */
953 buffer_put_string(&m,oid->elements,oid->length);
955 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSETUP, &m);
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);
965 mm_ssh_gssapi_accept_ctx(Gssctxt *ctx, gss_buffer_desc *in,
966 gss_buffer_desc *out, OM_uint32 *flags) {
972 buffer_put_string(&m, in->value, in->length);
973 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSTEP, &m);
975 debug3("%s: waiting for MONITOR_ANS_GSSSTEP", __func__);
976 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSTEP, &m);
978 major=buffer_get_int(&m);
979 out->value=buffer_get_string(&m,&out->length);
980 if (flags) *flags=buffer_get_int(&m);
986 mm_ssh_gssapi_userok(char *user) {
988 int authenticated = 0;
991 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSUSEROK, &m);
993 debug3("%s: waiting for MONITOR_ANS_GSSUSEROK", __func__);
994 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSUSEROK,
997 authenticated = buffer_get_int(&m);
1000 debug3("%s: user %sauthenticated",__func__, authenticated ? "" : "not ");
1001 return(authenticated);
1005 mm_ssh_gssapi_localname(char **lname)
1010 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSLOCALNAME, &m);
1012 debug3("%s: waiting for MONITOR_ANS_GSSLOCALNAME", __func__);
1013 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSLOCALNAME,
1016 *lname = buffer_get_string(&m, NULL);
1019 if (lname[0] == '\0') {
1020 debug3("%s: gssapi identity mapping failed", __func__);
1022 debug3("%s: gssapi identity mapped to %s", __func__, *lname);
1029 mm_ssh_gssapi_sign(Gssctxt *ctx, gss_buffer_desc *data, gss_buffer_desc *hash) {
1034 buffer_put_string(&m, data->value, data->length);
1036 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSIGN, &m);
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);
1047 mm_gss_indicate_mechs(OM_uint32 *minor_status, gss_OID_set *mech_set)
1055 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSMECHS, &m);
1057 debug3("%s: waiting for MONITOR_ANS_GSSMECHS",__func__);
1058 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSMECHS,
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++) {
1066 (*mech_set)->elements[i].elements=buffer_get_string(&m, &length);
1067 (*mech_set)->elements[i].length = length;
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)
1083 buffer_put_int(&m, status_value);
1084 buffer_put_int(&m, status_type);
1086 buffer_put_string(&m, mech_type->elements, mech_type->length);
1088 buffer_put_string(&m, "", 0);
1090 if (message_context) {
1091 buffer_put_int(&m, *message_context);
1093 buffer_put_int(&m, 0);
1096 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSTAT, &m);
1098 debug3("%s: waiting for MONITOR_ANS_GSSMECHS",__func__);
1099 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSTAT,
1102 if (message_context) {
1103 *message_context = buffer_get_int(&m);
1107 status_string->value = buffer_get_string(&m, &status_string->length);
1115 int mm_gsi_gridmap(char *subject_name, char **lname)
1120 buffer_put_cstring(&m, subject_name);
1121 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSIGRIDMAP, &m);
1123 debug3("%s: waiting for MONITOR_ANS_GSIGRIDMAP", __func__);
1124 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSIGRIDMAP,
1127 *lname = buffer_get_string(&m, NULL);
1130 if (lname[0] == '\0') {
1131 debug3("%s: gssapi identity %s mapping failed", __func__,
1134 debug3("%s: gssapi identity %s mapped to %s", __func__,
1135 subject_name, *lname);
1146 mm_auth_krb4(Authctxt *authctxt, void *_auth, char **client, void *_reply)
1154 debug3("%s entering", __func__);
1159 buffer_put_string(&m, auth->dat, auth->length);
1161 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KRB4, &m);
1162 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KRB4, &m);
1164 success = buffer_get_int(&m);
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);
1182 mm_auth_krb5(void *ctx, void *argp, char **userp, void *resp)
1184 krb5_data *tkt, *reply;
1188 debug3("%s entering", __func__);
1189 tkt = (krb5_data *) argp;
1190 reply = (krb5_data *) resp;
1193 buffer_put_string(&m, tkt->data, tkt->length);
1195 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KRB5, &m);
1196 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KRB5, &m);
1198 success = buffer_get_int(&m);
1202 *userp = buffer_get_string(&m, NULL);
1203 reply->data = buffer_get_string(&m, &len);
1204 reply->length = len;
1206 memset(reply, 0, sizeof(*reply));