Annotation of src/usr.bin/ssh/auth2.c, Revision 1.47
1.1 markus 1: /*
2: * Copyright (c) 2000 Markus Friedl. All rights reserved.
3: *
4: * Redistribution and use in source and binary forms, with or without
5: * modification, are permitted provided that the following conditions
6: * are met:
7: * 1. Redistributions of source code must retain the above copyright
8: * notice, this list of conditions and the following disclaimer.
9: * 2. Redistributions in binary form must reproduce the above copyright
10: * notice, this list of conditions and the following disclaimer in the
11: * documentation and/or other materials provided with the distribution.
12: *
13: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23: */
1.14 deraadt 24:
1.1 markus 25: #include "includes.h"
1.47 ! markus 26: RCSID("$OpenBSD: auth2.c,v 1.46 2001/03/11 13:25:36 markus Exp $");
1.1 markus 27:
28: #include <openssl/evp.h>
29:
1.32 markus 30: #include "ssh2.h"
1.1 markus 31: #include "xmalloc.h"
32: #include "rsa.h"
1.45 djm 33: #include "sshpty.h"
1.1 markus 34: #include "packet.h"
35: #include "buffer.h"
1.32 markus 36: #include "log.h"
1.1 markus 37: #include "servconf.h"
38: #include "compat.h"
39: #include "channels.h"
40: #include "bufaux.h"
41: #include "auth.h"
42: #include "session.h"
43: #include "dispatch.h"
44: #include "key.h"
1.32 markus 45: #include "cipher.h"
46: #include "kex.h"
1.29 markus 47: #include "pathnames.h"
1.1 markus 48: #include "uidswap.h"
1.10 markus 49: #include "auth-options.h"
1.43 markus 50: #include "misc.h"
1.1 markus 51:
52: /* import */
53: extern ServerOptions options;
1.23 markus 54: extern u_char *session_id2;
1.1 markus 55: extern int session_id2_len;
56:
1.18 markus 57: static Authctxt *x_authctxt = NULL;
58: static int one = 1;
59:
60: typedef struct Authmethod Authmethod;
61: struct Authmethod {
62: char *name;
63: int (*userauth)(Authctxt *authctxt);
64: int *enabled;
65: };
66:
1.1 markus 67: /* protocol */
68:
1.15 markus 69: void input_service_request(int type, int plen, void *ctxt);
70: void input_userauth_request(int type, int plen, void *ctxt);
71: void protocol_error(int type, int plen, void *ctxt);
1.1 markus 72:
73: /* helper */
1.18 markus 74: Authmethod *authmethod_lookup(const char *name);
1.21 markus 75: int user_key_allowed(struct passwd *pw, Key *key);
1.18 markus 76: char *authmethods_get(void);
1.1 markus 77:
1.18 markus 78: /* auth */
1.25 markus 79: void userauth_banner(void);
1.18 markus 80: int userauth_none(Authctxt *authctxt);
81: int userauth_passwd(Authctxt *authctxt);
82: int userauth_pubkey(Authctxt *authctxt);
83: int userauth_kbdint(Authctxt *authctxt);
84:
85: Authmethod authmethods[] = {
86: {"none",
87: userauth_none,
88: &one},
89: {"publickey",
90: userauth_pubkey,
1.21 markus 91: &options.pubkey_authentication},
1.40 markus 92: {"password",
93: userauth_passwd,
94: &options.password_authentication},
1.18 markus 95: {"keyboard-interactive",
96: userauth_kbdint,
97: &options.kbd_interactive_authentication},
98: {NULL, NULL, NULL}
1.1 markus 99: };
100:
101: /*
1.18 markus 102: * loop until authctxt->success == TRUE
1.1 markus 103: */
104:
105: void
106: do_authentication2()
107: {
1.28 markus 108: Authctxt *authctxt = authctxt_new();
109:
1.18 markus 110: x_authctxt = authctxt; /*XXX*/
111:
1.34 markus 112: /* challenge-reponse is implemented via keyboard interactive */
113: if (options.challenge_reponse_authentication)
114: options.kbd_interactive_authentication = 1;
115:
1.1 markus 116: dispatch_init(&protocol_error);
117: dispatch_set(SSH2_MSG_SERVICE_REQUEST, &input_service_request);
1.18 markus 118: dispatch_run(DISPATCH_BLOCK, &authctxt->success, authctxt);
1.28 markus 119: do_authenticated2(authctxt);
1.1 markus 120: }
121:
122: void
1.15 markus 123: protocol_error(int type, int plen, void *ctxt)
1.1 markus 124: {
125: log("auth: protocol error: type %d plen %d", type, plen);
126: packet_start(SSH2_MSG_UNIMPLEMENTED);
127: packet_put_int(0);
128: packet_send();
129: packet_write_wait();
130: }
131:
132: void
1.15 markus 133: input_service_request(int type, int plen, void *ctxt)
1.1 markus 134: {
1.18 markus 135: Authctxt *authctxt = ctxt;
1.23 markus 136: u_int len;
1.1 markus 137: int accept = 0;
138: char *service = packet_get_string(&len);
139: packet_done();
140:
1.18 markus 141: if (authctxt == NULL)
142: fatal("input_service_request: no authctxt");
143:
1.1 markus 144: if (strcmp(service, "ssh-userauth") == 0) {
1.18 markus 145: if (!authctxt->success) {
1.1 markus 146: accept = 1;
147: /* now we can handle user-auth requests */
148: dispatch_set(SSH2_MSG_USERAUTH_REQUEST, &input_userauth_request);
149: }
150: }
151: /* XXX all other service requests are denied */
152:
153: if (accept) {
154: packet_start(SSH2_MSG_SERVICE_ACCEPT);
155: packet_put_cstring(service);
156: packet_send();
157: packet_write_wait();
158: } else {
159: debug("bad service request %s", service);
160: packet_disconnect("bad service request %s", service);
161: }
162: xfree(service);
163: }
164:
165: void
1.15 markus 166: input_userauth_request(int type, int plen, void *ctxt)
1.1 markus 167: {
1.18 markus 168: Authctxt *authctxt = ctxt;
169: Authmethod *m = NULL;
1.28 markus 170: char *user, *service, *method, *style = NULL;
1.1 markus 171: int authenticated = 0;
172:
1.18 markus 173: if (authctxt == NULL)
174: fatal("input_userauth_request: no authctxt");
1.1 markus 175:
1.18 markus 176: user = packet_get_string(NULL);
177: service = packet_get_string(NULL);
178: method = packet_get_string(NULL);
1.1 markus 179: debug("userauth-request for user %s service %s method %s", user, service, method);
1.24 markus 180: debug("attempt %d failures %d", authctxt->attempt, authctxt->failures);
1.1 markus 181:
1.28 markus 182: if ((style = strchr(user, ':')) != NULL)
183: *style++ = 0;
184:
1.36 stevesk 185: if (authctxt->attempt++ == 0) {
1.18 markus 186: /* setup auth context */
187: struct passwd *pw = NULL;
188: pw = getpwnam(user);
189: if (pw && allowed_user(pw) && strcmp(service, "ssh-connection")==0) {
190: authctxt->pw = pwcopy(pw);
191: authctxt->valid = 1;
192: debug2("input_userauth_request: setting up authctxt for %s", user);
193: } else {
194: log("input_userauth_request: illegal user %s", user);
195: }
1.42 markus 196: setproctitle("%s", pw ? user : "unknown");
1.18 markus 197: authctxt->user = xstrdup(user);
198: authctxt->service = xstrdup(service);
1.28 markus 199: authctxt->style = style ? xstrdup(style) : NULL; /* currently unused */
1.18 markus 200: } else if (authctxt->valid) {
201: if (strcmp(user, authctxt->user) != 0 ||
202: strcmp(service, authctxt->service) != 0) {
203: log("input_userauth_request: missmatch: (%s,%s)!=(%s,%s)",
204: user, service, authctxt->user, authctxt->service);
205: authctxt->valid = 0;
1.1 markus 206: }
207: }
1.28 markus 208: /* reset state */
209: dispatch_set(SSH2_MSG_USERAUTH_INFO_RESPONSE, &protocol_error);
210: authctxt->postponed = 0;
1.47 ! markus 211: #ifdef BSD_AUTH
! 212: if (authctxt->as) {
! 213: auth_close(authctxt->as);
! 214: authctxt->as = NULL;
! 215: }
! 216: #endif
1.18 markus 217:
1.28 markus 218: /* try to authenticate user */
1.18 markus 219: m = authmethod_lookup(method);
220: if (m != NULL) {
221: debug2("input_userauth_request: try method %s", method);
222: authenticated = m->userauth(authctxt);
223: }
1.28 markus 224: if (!authctxt->valid && authenticated)
225: fatal("INTERNAL ERROR: authenticated invalid user %s",
226: authctxt->user);
1.18 markus 227:
228: /* Special handling for root */
1.41 markus 229: if (authenticated && authctxt->pw->pw_uid == 0 &&
230: !auth_root_allowed(method))
1.3 markus 231: authenticated = 0;
232:
1.18 markus 233: /* Log before sending the reply */
1.28 markus 234: auth_log(authctxt, authenticated, method, " ssh2");
235:
236: if (!authctxt->postponed)
237: userauth_reply(authctxt, authenticated);
1.18 markus 238:
239: xfree(service);
240: xfree(user);
241: xfree(method);
242: }
243:
1.25 markus 244: void
245: userauth_banner(void)
246: {
247: struct stat st;
248: char *banner = NULL;
249: off_t len, n;
250: int fd;
251:
252: if (options.banner == NULL || (datafellows & SSH_BUG_BANNER))
253: return;
254: if ((fd = open(options.banner, O_RDONLY)) < 0) {
255: error("userauth_banner: open %s failed: %s",
256: options.banner, strerror(errno));
257: return;
258: }
259: if (fstat(fd, &st) < 0)
260: goto done;
261: len = st.st_size;
262: banner = xmalloc(len + 1);
263: if ((n = read(fd, banner, len)) < 0)
264: goto done;
265: banner[n] = '\0';
266: packet_start(SSH2_MSG_USERAUTH_BANNER);
267: packet_put_cstring(banner);
268: packet_put_cstring(""); /* language, unused */
269: packet_send();
270: debug("userauth_banner: sent");
271: done:
272: if (banner)
273: xfree(banner);
274: close(fd);
275: return;
276: }
1.18 markus 277:
1.36 stevesk 278: void
1.18 markus 279: userauth_reply(Authctxt *authctxt, int authenticated)
280: {
1.24 markus 281: char *methods;
1.28 markus 282:
1.3 markus 283: /* XXX todo: check if multiple auth methods are needed */
1.39 markus 284: if (authenticated == 1) {
1.1 markus 285: /* turn off userauth */
286: dispatch_set(SSH2_MSG_USERAUTH_REQUEST, &protocol_error);
287: packet_start(SSH2_MSG_USERAUTH_SUCCESS);
288: packet_send();
289: packet_write_wait();
290: /* now we can break out */
1.18 markus 291: authctxt->success = 1;
1.28 markus 292: } else {
293: if (authctxt->failures++ > AUTH_FAIL_MAX)
1.36 stevesk 294: packet_disconnect(AUTH_FAIL_MSG, authctxt->user);
1.24 markus 295: methods = authmethods_get();
1.1 markus 296: packet_start(SSH2_MSG_USERAUTH_FAILURE);
1.18 markus 297: packet_put_cstring(methods);
298: packet_put_char(0); /* XXX partial success, unused */
1.1 markus 299: packet_send();
300: packet_write_wait();
1.18 markus 301: xfree(methods);
1.1 markus 302: }
303: }
304:
305: int
1.18 markus 306: userauth_none(Authctxt *authctxt)
1.1 markus 307: {
1.18 markus 308: /* disable method "none", only allowed one time */
309: Authmethod *m = authmethod_lookup("none");
310: if (m != NULL)
311: m->enabled = NULL;
1.1 markus 312: packet_done();
1.25 markus 313: userauth_banner();
1.47 ! markus 314: return authctxt->valid ? auth_password(authctxt, "") : 0;
1.1 markus 315: }
1.18 markus 316:
1.1 markus 317: int
1.18 markus 318: userauth_passwd(Authctxt *authctxt)
1.1 markus 319: {
320: char *password;
321: int authenticated = 0;
322: int change;
1.23 markus 323: u_int len;
1.1 markus 324: change = packet_get_char();
325: if (change)
326: log("password change not supported");
327: password = packet_get_string(&len);
328: packet_done();
1.18 markus 329: if (authctxt->valid &&
1.47 ! markus 330: auth_password(authctxt, password) == 1)
1.1 markus 331: authenticated = 1;
332: memset(password, 0, len);
333: xfree(password);
334: return authenticated;
335: }
1.18 markus 336:
337: int
338: userauth_kbdint(Authctxt *authctxt)
339: {
340: int authenticated = 0;
341: char *lang = NULL;
342: char *devs = NULL;
343:
344: lang = packet_get_string(NULL);
345: devs = packet_get_string(NULL);
346: packet_done();
347:
348: debug("keyboard-interactive language %s devs %s", lang, devs);
1.28 markus 349:
1.34 markus 350: if (options.challenge_reponse_authentication)
351: authenticated = auth2_challenge(authctxt, devs);
1.28 markus 352:
1.18 markus 353: xfree(lang);
354: xfree(devs);
355: return authenticated;
356: }
357:
1.1 markus 358: int
1.18 markus 359: userauth_pubkey(Authctxt *authctxt)
1.1 markus 360: {
361: Buffer b;
362: Key *key;
363: char *pkalg, *pkblob, *sig;
1.23 markus 364: u_int alen, blen, slen;
1.21 markus 365: int have_sig, pktype;
1.1 markus 366: int authenticated = 0;
367:
1.18 markus 368: if (!authctxt->valid) {
369: debug2("userauth_pubkey: disabled because of invalid user");
1.8 markus 370: return 0;
371: }
1.1 markus 372: have_sig = packet_get_char();
1.22 markus 373: if (datafellows & SSH_BUG_PKAUTH) {
374: debug2("userauth_pubkey: SSH_BUG_PKAUTH");
375: /* no explicit pkalg given */
376: pkblob = packet_get_string(&blen);
377: buffer_init(&b);
378: buffer_append(&b, pkblob, blen);
379: /* so we have to extract the pkalg from the pkblob */
380: pkalg = buffer_get_string(&b, &alen);
381: buffer_free(&b);
382: } else {
383: pkalg = packet_get_string(&alen);
384: pkblob = packet_get_string(&blen);
385: }
1.21 markus 386: pktype = key_type_from_name(pkalg);
387: if (pktype == KEY_UNSPEC) {
1.22 markus 388: /* this is perfectly legal */
389: log("userauth_pubkey: unsupported public key algorithm: %s", pkalg);
1.1 markus 390: xfree(pkalg);
1.22 markus 391: xfree(pkblob);
1.1 markus 392: return 0;
393: }
1.21 markus 394: key = key_from_blob(pkblob, blen);
1.2 markus 395: if (key != NULL) {
396: if (have_sig) {
397: sig = packet_get_string(&slen);
398: packet_done();
399: buffer_init(&b);
1.20 markus 400: if (datafellows & SSH_OLD_SESSIONID) {
401: buffer_append(&b, session_id2, session_id2_len);
402: } else {
1.11 markus 403: buffer_put_string(&b, session_id2, session_id2_len);
404: }
1.9 markus 405: /* reconstruct packet */
1.2 markus 406: buffer_put_char(&b, SSH2_MSG_USERAUTH_REQUEST);
1.18 markus 407: buffer_put_cstring(&b, authctxt->user);
1.9 markus 408: buffer_put_cstring(&b,
1.22 markus 409: datafellows & SSH_BUG_PKSERVICE ?
1.9 markus 410: "ssh-userauth" :
1.18 markus 411: authctxt->service);
1.22 markus 412: if (datafellows & SSH_BUG_PKAUTH) {
413: buffer_put_char(&b, have_sig);
414: } else {
415: buffer_put_cstring(&b, "publickey");
416: buffer_put_char(&b, have_sig);
417: buffer_put_cstring(&b, key_ssh_name(key));
418: }
1.9 markus 419: buffer_put_string(&b, pkblob, blen);
1.21 markus 420: #ifdef DEBUG_PK
1.2 markus 421: buffer_dump(&b);
1.1 markus 422: #endif
1.2 markus 423: /* test for correct signature */
1.21 markus 424: if (user_key_allowed(authctxt->pw, key) &&
425: key_verify(key, sig, slen, buffer_ptr(&b), buffer_len(&b)) == 1)
1.2 markus 426: authenticated = 1;
427: buffer_clear(&b);
428: xfree(sig);
429: } else {
1.18 markus 430: debug("test whether pkalg/pkblob are acceptable");
1.2 markus 431: packet_done();
1.18 markus 432:
1.2 markus 433: /* XXX fake reply and always send PK_OK ? */
1.6 markus 434: /*
435: * XXX this allows testing whether a user is allowed
436: * to login: if you happen to have a valid pubkey this
437: * message is sent. the message is NEVER sent at all
438: * if a user is not allowed to login. is this an
439: * issue? -markus
440: */
1.21 markus 441: if (user_key_allowed(authctxt->pw, key)) {
1.2 markus 442: packet_start(SSH2_MSG_USERAUTH_PK_OK);
443: packet_put_string(pkalg, alen);
444: packet_put_string(pkblob, blen);
445: packet_send();
446: packet_write_wait();
1.38 markus 447: authctxt->postponed = 1;
1.2 markus 448: }
1.1 markus 449: }
1.17 markus 450: if (authenticated != 1)
451: auth_clear_options();
1.2 markus 452: key_free(key);
1.1 markus 453: }
1.21 markus 454: debug2("userauth_pubkey: authenticated %d pkalg %s", authenticated, pkalg);
1.1 markus 455: xfree(pkalg);
456: xfree(pkblob);
457: return authenticated;
458: }
459:
1.18 markus 460: /* get current user */
1.1 markus 461:
462: struct passwd*
463: auth_get_user(void)
464: {
1.18 markus 465: return (x_authctxt != NULL && x_authctxt->valid) ? x_authctxt->pw : NULL;
1.1 markus 466: }
467:
1.18 markus 468: #define DELIM ","
469:
470: char *
471: authmethods_get(void)
1.1 markus 472: {
1.18 markus 473: Authmethod *method = NULL;
1.23 markus 474: u_int size = 0;
1.18 markus 475: char *list;
1.1 markus 476:
1.18 markus 477: for (method = authmethods; method->name != NULL; method++) {
478: if (strcmp(method->name, "none") == 0)
479: continue;
480: if (method->enabled != NULL && *(method->enabled) != 0) {
481: if (size != 0)
482: size += strlen(DELIM);
483: size += strlen(method->name);
1.1 markus 484: }
1.18 markus 485: }
486: size++; /* trailing '\0' */
487: list = xmalloc(size);
488: list[0] = '\0';
489:
490: for (method = authmethods; method->name != NULL; method++) {
491: if (strcmp(method->name, "none") == 0)
492: continue;
493: if (method->enabled != NULL && *(method->enabled) != 0) {
494: if (list[0] != '\0')
495: strlcat(list, DELIM, size);
496: strlcat(list, method->name, size);
1.1 markus 497: }
498: }
1.18 markus 499: return list;
500: }
501:
502: Authmethod *
503: authmethod_lookup(const char *name)
504: {
505: Authmethod *method = NULL;
506: if (name != NULL)
507: for (method = authmethods; method->name != NULL; method++)
508: if (method->enabled != NULL &&
509: *(method->enabled) != 0 &&
510: strcmp(name, method->name) == 0)
511: return method;
512: debug2("Unrecognized authentication method name: %s", name ? name : "NULL");
513: return NULL;
1.1 markus 514: }
515:
516: /* return 1 if user allows given key */
517: int
1.21 markus 518: user_key_allowed(struct passwd *pw, Key *key)
1.1 markus 519: {
1.31 markus 520: char line[8192], file[MAXPATHLEN];
1.1 markus 521: int found_key = 0;
522: FILE *f;
1.23 markus 523: u_long linenum = 0;
1.1 markus 524: struct stat st;
525: Key *found;
526:
1.18 markus 527: if (pw == NULL)
528: return 0;
529:
1.1 markus 530: /* Temporarily use the user's uid. */
531: temporarily_use_uid(pw->pw_uid);
532:
533: /* The authorized keys. */
534: snprintf(file, sizeof file, "%.500s/%.100s", pw->pw_dir,
1.29 markus 535: _PATH_SSH_USER_PERMITTED_KEYS2);
1.1 markus 536:
537: /* Fail quietly if file does not exist */
538: if (stat(file, &st) < 0) {
539: /* Restore the privileged uid. */
540: restore_uid();
541: return 0;
542: }
543: /* Open the file containing the authorized keys. */
544: f = fopen(file, "r");
545: if (!f) {
546: /* Restore the privileged uid. */
547: restore_uid();
548: return 0;
549: }
550: if (options.strict_modes) {
551: int fail = 0;
552: char buf[1024];
553: /* Check open file in order to avoid open/stat races */
554: if (fstat(fileno(f), &st) < 0 ||
555: (st.st_uid != 0 && st.st_uid != pw->pw_uid) ||
556: (st.st_mode & 022) != 0) {
1.16 markus 557: snprintf(buf, sizeof buf,
558: "%s authentication refused for %.100s: "
559: "bad ownership or modes for '%s'.",
560: key_type(key), pw->pw_name, file);
1.1 markus 561: fail = 1;
562: } else {
1.29 markus 563: /* Check path to _PATH_SSH_USER_PERMITTED_KEYS */
1.1 markus 564: int i;
565: static const char *check[] = {
1.29 markus 566: "", _PATH_SSH_USER_DIR, NULL
1.1 markus 567: };
568: for (i = 0; check[i]; i++) {
569: snprintf(line, sizeof line, "%.500s/%.100s",
570: pw->pw_dir, check[i]);
571: if (stat(line, &st) < 0 ||
572: (st.st_uid != 0 && st.st_uid != pw->pw_uid) ||
573: (st.st_mode & 022) != 0) {
574: snprintf(buf, sizeof buf,
1.16 markus 575: "%s authentication refused for %.100s: "
1.1 markus 576: "bad ownership or modes for '%s'.",
1.16 markus 577: key_type(key), pw->pw_name, line);
1.1 markus 578: fail = 1;
579: break;
580: }
581: }
582: }
583: if (fail) {
584: fclose(f);
1.44 deraadt 585: log("%s", buf);
1.1 markus 586: restore_uid();
587: return 0;
588: }
589: }
590: found_key = 0;
1.16 markus 591: found = key_new(key->type);
1.1 markus 592:
593: while (fgets(line, sizeof(line), f)) {
1.10 markus 594: char *cp, *options = NULL;
1.1 markus 595: linenum++;
596: /* Skip leading whitespace, empty and comment lines. */
597: for (cp = line; *cp == ' ' || *cp == '\t'; cp++)
598: ;
599: if (!*cp || *cp == '\n' || *cp == '#')
600: continue;
1.10 markus 601:
1.21 markus 602: if (key_read(found, &cp) == -1) {
1.10 markus 603: /* no key? check if there are options for this key */
604: int quoted = 0;
1.21 markus 605: debug2("user_key_allowed: check options: '%s'", cp);
1.10 markus 606: options = cp;
607: for (; *cp && (quoted || (*cp != ' ' && *cp != '\t')); cp++) {
608: if (*cp == '\\' && cp[1] == '"')
609: cp++; /* Skip both */
610: else if (*cp == '"')
611: quoted = !quoted;
612: }
613: /* Skip remaining whitespace. */
614: for (; *cp == ' ' || *cp == '\t'; cp++)
615: ;
1.21 markus 616: if (key_read(found, &cp) == -1) {
617: debug2("user_key_allowed: advance: '%s'", cp);
1.10 markus 618: /* still no key? advance to next line*/
619: continue;
620: }
621: }
622: if (key_equal(found, key) &&
1.30 markus 623: auth_parse_options(pw, options, file, linenum) == 1) {
1.1 markus 624: found_key = 1;
625: debug("matching key found: file %s, line %ld",
626: file, linenum);
627: break;
628: }
629: }
630: restore_uid();
631: fclose(f);
632: key_free(found);
1.46 markus 633: if (!found_key)
634: debug2("key not found");
1.1 markus 635: return found_key;
636: }
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