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 1.24 2003/04/01 10:22:21 markus Exp $");
30 #include <openssl/bn.h>
31 #include <openssl/dh.h>
37 #include "auth-options.h"
45 #include "monitor_wrap.h"
48 #include "monitor_fdpass.h"
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;
68 mm_request_send(int socket, enum monitor_reqtype type, Buffer *m)
70 u_int mlen = buffer_len(m);
73 debug3("%s entering: type %d", __func__, type);
75 PUT_32BIT(buf, mlen + 1);
76 buf[4] = (u_char) type; /* 1st byte of payload is mesg-type */
77 if (atomicio(write, socket, buf, sizeof(buf)) != sizeof(buf))
78 fatal("%s: write", __func__);
79 if (atomicio(write, socket, buffer_ptr(m), mlen) != mlen)
80 fatal("%s: write", __func__);
84 mm_request_receive(int socket, Buffer *m)
90 debug3("%s entering", __func__);
92 res = atomicio(read, socket, buf, sizeof(buf));
93 if (res != sizeof(buf)) {
96 fatal("%s: read: %ld", __func__, (long)res);
98 msg_len = GET_32BIT(buf);
99 if (msg_len > 256 * 1024)
100 fatal("%s: read: bad msg_len %d", __func__, msg_len);
102 buffer_append_space(m, msg_len);
103 res = atomicio(read, socket, buffer_ptr(m), msg_len);
105 fatal("%s: read: %ld != msg_len", __func__, (long)res);
109 mm_request_receive_expect(int socket, enum monitor_reqtype type, Buffer *m)
113 debug3("%s entering: type %d", __func__, type);
115 mm_request_receive(socket, m);
116 rtype = buffer_get_char(m);
118 fatal("%s: read: rtype %d != type %d", __func__,
123 mm_choose_dh(int min, int nbits, int max)
130 buffer_put_int(&m, min);
131 buffer_put_int(&m, nbits);
132 buffer_put_int(&m, max);
134 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_MODULI, &m);
136 debug3("%s: waiting for MONITOR_ANS_MODULI", __func__);
137 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_MODULI, &m);
139 success = buffer_get_char(&m);
141 fatal("%s: MONITOR_ANS_MODULI failed", __func__);
143 if ((p = BN_new()) == NULL)
144 fatal("%s: BN_new failed", __func__);
145 if ((g = BN_new()) == NULL)
146 fatal("%s: BN_new failed", __func__);
147 buffer_get_bignum2(&m, p);
148 buffer_get_bignum2(&m, g);
150 debug3("%s: remaining %d", __func__, buffer_len(&m));
153 return (dh_new_group(g, p));
157 mm_key_sign(Key *key, u_char **sigp, u_int *lenp, u_char *data, u_int datalen)
159 Kex *kex = *pmonitor->m_pkex;
162 debug3("%s entering", __func__);
165 buffer_put_int(&m, kex->host_key_index(key));
166 buffer_put_string(&m, data, datalen);
168 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SIGN, &m);
170 debug3("%s: waiting for MONITOR_ANS_SIGN", __func__);
171 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SIGN, &m);
172 *sigp = buffer_get_string(&m, lenp);
179 mm_getpwnamallow(const char *login)
185 debug3("%s entering", __func__);
188 buffer_put_cstring(&m, login);
190 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PWNAM, &m);
192 debug3("%s: waiting for MONITOR_ANS_PWNAM", __func__);
193 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_PWNAM, &m);
195 if (buffer_get_char(&m) == 0) {
199 pw = buffer_get_string(&m, &pwlen);
200 if (pwlen != sizeof(struct passwd))
201 fatal("%s: struct passwd size mismatch", __func__);
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);
208 pw->pw_dir = buffer_get_string(&m, NULL);
209 pw->pw_shell = buffer_get_string(&m, NULL);
215 char *mm_auth2_read_banner(void)
220 debug3("%s entering", __func__);
223 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTH2_READ_BANNER, &m);
226 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_AUTH2_READ_BANNER, &m);
227 banner = buffer_get_string(&m, NULL);
233 /* Inform the privileged process about service and style */
236 mm_inform_authserv(char *service, char *style)
240 debug3("%s entering", __func__);
243 buffer_put_cstring(&m, service);
244 buffer_put_cstring(&m, style ? style : "");
246 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHSERV, &m);
251 /* Do the password authentication */
253 mm_auth_password(Authctxt *authctxt, char *password)
256 int authenticated = 0;
258 debug3("%s entering", __func__);
261 buffer_put_cstring(&m, password);
262 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_AUTHPASSWORD, &m);
264 debug3("%s: waiting for MONITOR_ANS_AUTHPASSWORD", __func__);
265 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_AUTHPASSWORD, &m);
267 authenticated = buffer_get_int(&m);
271 debug3("%s: user %sauthenticated",
272 __func__, authenticated ? "" : "not ");
273 return (authenticated);
277 mm_user_key_allowed(struct passwd *pw, Key *key)
279 return (mm_key_allowed(MM_USERKEY, NULL, NULL, key));
283 mm_hostbased_key_allowed(struct passwd *pw, char *user, char *host,
286 return (mm_key_allowed(MM_HOSTKEY, user, host, key));
290 mm_auth_rhosts_rsa_key_allowed(struct passwd *pw, char *user,
291 char *host, Key *key)
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;
302 mm_send_debug(Buffer *m)
306 while (buffer_len(m)) {
307 msg = buffer_get_string(m, NULL);
308 debug3("%s: Sending debug: %s", __func__, msg);
309 packet_send_debug("%s", msg);
315 mm_key_allowed(enum mm_keytype type, char *user, char *host, Key *key)
320 int allowed = 0, have_forced = 0;
322 debug3("%s entering", __func__);
324 /* Convert the key to a blob and the pass it over */
325 if (!key_to_blob(key, &blob, &len))
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);
335 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYALLOWED, &m);
337 debug3("%s: waiting for MONITOR_ANS_KEYALLOWED", __func__);
338 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KEYALLOWED, &m);
340 allowed = buffer_get_int(&m);
342 /* fake forced command */
343 auth_clear_options();
344 have_forced = buffer_get_int(&m);
345 forced_command = have_forced ? xstrdup("true") : NULL;
347 /* Send potential debug messages */
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.
362 mm_key_verify(Key *key, u_char *sig, u_int siglen, u_char *data, u_int datalen)
369 debug3("%s entering", __func__);
371 /* Convert the key to a blob and the pass it over */
372 if (!key_to_blob(key, &blob, &len))
376 buffer_put_string(&m, blob, len);
377 buffer_put_string(&m, sig, siglen);
378 buffer_put_string(&m, data, datalen);
381 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYVERIFY, &m);
383 debug3("%s: waiting for MONITOR_ANS_KEYVERIFY", __func__);
384 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KEYVERIFY, &m);
386 verified = buffer_get_int(&m);
393 /* Export key state after authentication */
395 mm_newkeys_from_blob(u_char *blob, int blen)
399 Newkeys *newkey = NULL;
404 debug3("%s: %p(%d)", __func__, blob, blen);
406 dump_base64(stderr, blob, blen);
409 buffer_append(&b, blob, blen);
411 newkey = xmalloc(sizeof(*newkey));
414 comp = &newkey->comp;
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)
424 fatal("%s: bad ivlen: expected %u != %u", __func__,
425 enc->block_size, len);
427 if (enc->name == NULL || cipher_by_name(enc->name) != enc->cipher)
428 fatal("%s: bad cipher name %s or pointer %p", __func__,
429 enc->name, enc->cipher);
432 mac->name = buffer_get_string(&b, NULL);
433 if (mac->name == NULL || mac_init(mac, mac->name) == -1)
434 fatal("%s: can not init mac %s", __func__, mac->name);
435 mac->enabled = buffer_get_int(&b);
436 mac->key = buffer_get_string(&b, &len);
437 if (len > mac->key_len)
438 fatal("%s: bad mac key length: %u > %d", __func__, len,
443 comp->type = buffer_get_int(&b);
444 comp->enabled = buffer_get_int(&b);
445 comp->name = buffer_get_string(&b, NULL);
447 len = buffer_len(&b);
449 error("newkeys_from_blob: remaining bytes in blob %u", len);
455 mm_newkeys_to_blob(int mode, u_char **blobp, u_int *lenp)
462 Newkeys *newkey = newkeys[mode];
464 debug3("%s: converting %p", __func__, newkey);
466 if (newkey == NULL) {
467 error("%s: newkey == NULL", __func__);
472 comp = &newkey->comp;
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);
486 buffer_put_cstring(&b, mac->name);
487 buffer_put_int(&b, mac->enabled);
488 buffer_put_string(&b, mac->key, mac->key_len);
491 buffer_put_int(&b, comp->type);
492 buffer_put_int(&b, comp->enabled);
493 buffer_put_cstring(&b, comp->name);
495 len = buffer_len(&b);
499 *blobp = xmalloc(len);
500 memcpy(*blobp, buffer_ptr(&b), len);
502 memset(buffer_ptr(&b), 0, len);
508 mm_send_kex(Buffer *m, Kex *kex)
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);
522 mm_send_keystate(struct monitor *pmonitor)
535 buffer_put_int(&m, packet_get_protocol_flags());
537 buffer_put_int(&m, packet_get_ssh1_cipher());
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);
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);
555 /* Kex for rekeying */
556 mm_send_kex(&m, *pmonitor->m_pkex);
559 debug3("%s: Sending new keys: %p %p",
560 __func__, newkeys[MODE_OUT], newkeys[MODE_IN]);
563 if (!mm_newkeys_to_blob(MODE_OUT, &blob, &bloblen))
564 fatal("%s: conversion of newkeys failed", __func__);
566 buffer_put_string(&m, blob, bloblen);
569 if (!mm_newkeys_to_blob(MODE_IN, &blob, &bloblen))
570 fatal("%s: conversion of newkeys failed", __func__);
572 buffer_put_string(&m, blob, bloblen);
575 buffer_put_int(&m, packet_get_seqnr(MODE_OUT));
576 buffer_put_int(&m, packet_get_seqnr(MODE_IN));
578 debug3("%s: New keys have been sent", __func__);
580 /* More key context */
581 plen = packet_get_keycontext(MODE_OUT, NULL);
583 packet_get_keycontext(MODE_OUT, p);
584 buffer_put_string(&m, p, plen);
587 plen = packet_get_keycontext(MODE_IN, NULL);
589 packet_get_keycontext(MODE_IN, p);
590 buffer_put_string(&m, p, plen);
593 /* Compression state */
594 debug3("%s: Sending compression state", __func__);
595 buffer_put_string(&m, &outgoing_stream, sizeof(outgoing_stream));
596 buffer_put_string(&m, &incoming_stream, sizeof(incoming_stream));
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));
602 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYEXPORT, &m);
603 debug3("%s: Finished sending state", __func__);
609 mm_pty_allocate(int *ptyfd, int *ttyfd, char *namebuf, int namebuflen)
616 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PTY, &m);
618 debug3("%s: waiting for MONITOR_ANS_PTY", __func__);
619 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_PTY, &m);
621 success = buffer_get_int(&m);
623 debug3("%s: pty alloc failed", __func__);
627 p = buffer_get_string(&m, NULL);
630 strlcpy(namebuf, p, namebuflen); /* Possible truncation */
633 *ptyfd = mm_receive_fd(pmonitor->m_recvfd);
634 *ttyfd = mm_receive_fd(pmonitor->m_recvfd);
641 mm_session_pty_cleanup2(void *session)
643 Session *s = session;
649 buffer_put_cstring(&m, s->tty);
650 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PTYCLEANUP, &m);
653 /* closed dup'ed master */
654 if (close(s->ptymaster) < 0)
655 error("close(s->ptymaster): %s", strerror(errno));
657 /* unlink pty from session */
663 mm_start_pam(char *user)
667 debug3("%s entering", __func__);
670 buffer_put_cstring(&m, user);
672 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PAM_START, &m);
678 /* Request process termination */
686 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_TERM, &m);
691 mm_ssh1_session_key(BIGNUM *num)
697 buffer_put_bignum2(&m, num);
698 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SESSKEY, &m);
700 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SESSKEY, &m);
702 rsafail = buffer_get_int(&m);
703 buffer_get_bignum2(&m, num);
711 mm_chall_setup(char **name, char **infotxt, u_int *numprompts,
712 char ***prompts, u_int **echo_on)
715 *infotxt = xstrdup("");
717 *prompts = xmalloc(*numprompts * sizeof(char *));
718 *echo_on = xmalloc(*numprompts * sizeof(u_int));
723 mm_bsdauth_query(void *ctx, char **name, char **infotxt,
724 u_int *numprompts, char ***prompts, u_int **echo_on)
730 debug3("%s: entering", __func__);
733 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_BSDAUTHQUERY, &m);
735 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_BSDAUTHQUERY,
737 success = buffer_get_int(&m);
739 debug3("%s: no challenge", __func__);
744 /* Get the challenge, and format the response */
745 challenge = buffer_get_string(&m, NULL);
748 mm_chall_setup(name, infotxt, numprompts, prompts, echo_on);
749 (*prompts)[0] = challenge;
751 debug3("%s: received challenge: %s", __func__, challenge);
757 mm_bsdauth_respond(void *ctx, u_int numresponses, char **responses)
762 debug3("%s: entering", __func__);
763 if (numresponses != 1)
767 buffer_put_cstring(&m, responses[0]);
768 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_BSDAUTHRESPOND, &m);
770 mm_request_receive_expect(pmonitor->m_recvfd,
771 MONITOR_ANS_BSDAUTHRESPOND, &m);
773 authok = buffer_get_int(&m);
776 return ((authok == 0) ? -1 : 0);
780 mm_skey_query(void *ctx, char **name, char **infotxt,
781 u_int *numprompts, char ***prompts, u_int **echo_on)
788 debug3("%s: entering", __func__);
791 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SKEYQUERY, &m);
793 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_SKEYQUERY,
795 success = buffer_get_int(&m);
797 debug3("%s: no challenge", __func__);
802 /* Get the challenge, and format the response */
803 challenge = buffer_get_string(&m, NULL);
806 debug3("%s: received challenge: %s", __func__, challenge);
808 mm_chall_setup(name, infotxt, numprompts, prompts, echo_on);
810 len = strlen(challenge) + strlen(SKEY_PROMPT) + 1;
812 strlcpy(p, challenge, len);
813 strlcat(p, SKEY_PROMPT, len);
821 mm_skey_respond(void *ctx, u_int numresponses, char **responses)
826 debug3("%s: entering", __func__);
827 if (numresponses != 1)
831 buffer_put_cstring(&m, responses[0]);
832 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SKEYRESPOND, &m);
834 mm_request_receive_expect(pmonitor->m_recvfd,
835 MONITOR_ANS_SKEYRESPOND, &m);
837 authok = buffer_get_int(&m);
840 return ((authok == 0) ? -1 : 0);
844 mm_ssh1_session_id(u_char session_id[16])
849 debug3("%s entering", __func__);
852 for (i = 0; i < 16; i++)
853 buffer_put_char(&m, session_id[i]);
855 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_SESSID, &m);
860 mm_auth_rsa_key_allowed(struct passwd *pw, BIGNUM *client_n, Key **rkey)
866 int allowed = 0, have_forced = 0;
868 debug3("%s entering", __func__);
871 buffer_put_bignum2(&m, client_n);
873 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSAKEYALLOWED, &m);
874 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSAKEYALLOWED, &m);
876 allowed = buffer_get_int(&m);
878 /* fake forced command */
879 auth_clear_options();
880 have_forced = buffer_get_int(&m);
881 forced_command = have_forced ? xstrdup("true") : NULL;
883 if (allowed && rkey != NULL) {
884 blob = buffer_get_string(&m, &blen);
885 if ((key = key_from_blob(blob, blen)) == NULL)
886 fatal("%s: key_from_blob failed", __func__);
897 mm_auth_rsa_generate_challenge(Key *key)
904 debug3("%s entering", __func__);
906 if ((challenge = BN_new()) == NULL)
907 fatal("%s: BN_new failed", __func__);
909 key->type = KEY_RSA; /* XXX cheat for key_to_blob */
910 if (key_to_blob(key, &blob, &blen) == 0)
911 fatal("%s: key_to_blob failed", __func__);
912 key->type = KEY_RSA1;
915 buffer_put_string(&m, blob, blen);
918 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSACHALLENGE, &m);
919 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSACHALLENGE, &m);
921 buffer_get_bignum2(&m, challenge);
928 mm_auth_rsa_verify_response(Key *key, BIGNUM *p, u_char response[16])
935 debug3("%s entering", __func__);
937 key->type = KEY_RSA; /* XXX cheat for key_to_blob */
938 if (key_to_blob(key, &blob, &blen) == 0)
939 fatal("%s: key_to_blob failed", __func__);
940 key->type = KEY_RSA1;
943 buffer_put_string(&m, blob, blen);
944 buffer_put_string(&m, response, 16);
947 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSARESPONSE, &m);
948 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSARESPONSE, &m);
950 success = buffer_get_int(&m);
957 mm_ssh_gssapi_server_ctx(Gssctxt **ctx, gss_OID oid) {
961 /* Client doesn't get to see the context */
965 buffer_put_string(&m,oid->elements,oid->length);
967 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSETUP, &m);
969 debug3("%s: waiting for MONITOR_ANS_GSSSETUP",__func__);
970 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSETUP, &m);
971 major=buffer_get_int(&m);
977 mm_ssh_gssapi_accept_ctx(Gssctxt *ctx, gss_buffer_desc *in,
978 gss_buffer_desc *out, OM_uint32 *flags) {
984 buffer_put_string(&m, in->value, in->length);
985 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSTEP, &m);
987 debug3("%s: waiting for MONITOR_ANS_GSSSTEP", __func__);
988 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSTEP, &m);
990 major=buffer_get_int(&m);
991 out->value=buffer_get_string(&m,&out->length);
992 if (flags) *flags=buffer_get_int(&m);
998 mm_ssh_gssapi_userok(char *user) {
1000 int authenticated = 0;
1003 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSUSEROK, &m);
1005 debug3("%s: waiting for MONITOR_ANS_GSSUSEROK", __func__);
1006 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSUSEROK,
1009 authenticated = buffer_get_int(&m);
1012 debug3("%s: user %sauthenticated",__func__, authenticated ? "" : "not ");
1013 return(authenticated);
1017 mm_ssh_gssapi_localname(char **lname)
1022 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSLOCALNAME, &m);
1024 debug3("%s: waiting for MONITOR_ANS_GSSLOCALNAME", __func__);
1025 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSLOCALNAME,
1028 *lname = buffer_get_string(&m, NULL);
1031 if (lname[0] == '\0') {
1032 debug3("%s: gssapi identity mapping failed", __func__);
1034 debug3("%s: gssapi identity mapped to %s", __func__, *lname);
1041 mm_ssh_gssapi_sign(Gssctxt *ctx, gss_buffer_desc *data, gss_buffer_desc *hash) {
1046 buffer_put_string(&m, data->value, data->length);
1048 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSIGN, &m);
1050 debug3("%s: waiting for MONITOR_ANS_GSSSIGN",__func__);
1051 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSIGN, &m);
1052 major=buffer_get_int(&m);
1053 hash->value = buffer_get_string(&m, &hash->length);
1059 mm_gss_indicate_mechs(OM_uint32 *minor_status, gss_OID_set *mech_set)
1067 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSMECHS, &m);
1069 debug3("%s: waiting for MONITOR_ANS_GSSMECHS",__func__);
1070 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSMECHS,
1072 major=buffer_get_int(&m);
1073 *mech_set = xmalloc(sizeof(gss_OID_set_desc));
1074 (*mech_set)->count=buffer_get_int(&m);
1075 (*mech_set)->elements=xmalloc(sizeof(gss_OID_desc)*(*mech_set)->count);
1076 for (i=0; i < (*mech_set)->count; i++) {
1078 (*mech_set)->elements[i].elements=buffer_get_string(&m, &length);
1079 (*mech_set)->elements[i].length = length;
1086 mm_gss_display_status(OM_uint32 *minor_status, OM_uint32 status_value,
1087 int status_type, const gss_OID mech_type,
1088 OM_uint32 *message_context, gss_buffer_t status_string)
1095 buffer_put_int(&m, status_value);
1096 buffer_put_int(&m, status_type);
1098 buffer_put_string(&m, mech_type->elements, mech_type->length);
1100 buffer_put_string(&m, "", 0);
1102 if (message_context) {
1103 buffer_put_int(&m, *message_context);
1105 buffer_put_int(&m, 0);
1108 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSSSTAT, &m);
1110 debug3("%s: waiting for MONITOR_ANS_GSSMECHS",__func__);
1111 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSSSTAT,
1114 if (message_context) {
1115 *message_context = buffer_get_int(&m);
1119 status_string->value = buffer_get_string(&m, &status_string->length);
1127 int mm_gsi_gridmap(char *subject_name, char **lname)
1132 buffer_put_cstring(&m, subject_name);
1133 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_GSIGRIDMAP, &m);
1135 debug3("%s: waiting for MONITOR_ANS_GSIGRIDMAP", __func__);
1136 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_GSIGRIDMAP,
1139 *lname = buffer_get_string(&m, NULL);
1142 if (lname[0] == '\0') {
1143 debug3("%s: gssapi identity %s mapping failed", __func__,
1146 debug3("%s: gssapi identity %s mapped to %s", __func__,
1147 subject_name, *lname);
1158 mm_auth_krb4(Authctxt *authctxt, void *_auth, char **client, void *_reply)
1166 debug3("%s entering", __func__);
1171 buffer_put_string(&m, auth->dat, auth->length);
1173 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KRB4, &m);
1174 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KRB4, &m);
1176 success = buffer_get_int(&m);
1178 *client = buffer_get_string(&m, NULL);
1179 p = buffer_get_string(&m, &rlen);
1180 if (rlen >= MAX_KTXT_LEN)
1181 fatal("%s: reply from monitor too large", __func__);
1182 reply->length = rlen;
1183 memcpy(reply->dat, p, rlen);
1194 mm_auth_krb5(void *ctx, void *argp, char **userp, void *resp)
1196 krb5_data *tkt, *reply;
1200 debug3("%s entering", __func__);
1201 tkt = (krb5_data *) argp;
1202 reply = (krb5_data *) resp;
1205 buffer_put_string(&m, tkt->data, tkt->length);
1207 mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KRB5, &m);
1208 mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KRB5, &m);
1210 success = buffer_get_int(&m);
1214 *userp = buffer_get_string(&m, NULL);
1215 reply->data = buffer_get_string(&m, &len);
1216 reply->length = len;
1218 memset(reply, 0, sizeof(*reply));