![[BACK]](/icons/back.gif){kind=icon}
Return to auth-options.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / ssh|
Return to auth-options.c CVS log | Up to [local] / src / usr.bin / ssh |
1.61 ! djm 1: /* $OpenBSD: auth-options.c,v 1.60 2013/11/02 22:34:01 markus Exp $ */
1.3 deraadt 2: /*
3: * Author: Tatu Ylonen <ylo@cs.hut.fi>
4: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5: * All rights reserved
6: * As far as I am concerned, the code I have written for this software
7: * can be used freely for any purpose. Any derived versions of this
8: * software must be clearly marked as such, and if the derived work is
9: * incompatible with the protocol description in the RFC file, it must be
10: * called by a name other than "ssh" or "Secure Shell".
11: */
12:
1.36 stevesk 13: #include <sys/types.h>
1.42 djm 14: #include <sys/queue.h>
1.36 stevesk 15:
1.37 stevesk 16: #include <netdb.h>
1.36 stevesk 17: #include <pwd.h>
1.39 stevesk 18: #include <string.h>
1.40 deraadt 19: #include <stdio.h>
20: #include <stdarg.h>
1.1 markus 21:
22: #include "xmalloc.h"
23: #include "match.h"
1.11 markus 24: #include "log.h"
25: #include "canohost.h"
1.40 deraadt 26: #include "buffer.h"
1.18 markus 27: #include "channels.h"
1.12 markus 28: #include "servconf.h"
1.20 stevesk 29: #include "misc.h"
1.40 deraadt 30: #include "key.h"
1.50 djm 31: #include "auth-options.h"
1.40 deraadt 32: #include "hostfile.h"
33: #include "auth.h"
1.1 markus 34:
35: /* Flags set authorized_keys flags */
36: int no_port_forwarding_flag = 0;
37: int no_agent_forwarding_flag = 0;
38: int no_x11_forwarding_flag = 0;
39: int no_pty_flag = 0;
1.41 djm 40: int no_user_rc = 0;
1.45 djm 41: int key_is_cert_authority = 0;
1.1 markus 42:
43: /* "command=" option. */
44: char *forced_command = NULL;
45:
46: /* "environment=" options. */
47: struct envstring *custom_environment = NULL;
48:
1.32 reyk 49: /* "tunnel=" option. */
50: int forced_tun_device = -1;
51:
1.51 djm 52: /* "principals=" option. */
53: char *authorized_principals = NULL;
54:
1.12 markus 55: extern ServerOptions options;
56:
1.22 provos 57: void
1.5 markus 58: auth_clear_options(void)
59: {
60: no_agent_forwarding_flag = 0;
61: no_port_forwarding_flag = 0;
62: no_pty_flag = 0;
63: no_x11_forwarding_flag = 0;
1.41 djm 64: no_user_rc = 0;
1.45 djm 65: key_is_cert_authority = 0;
1.5 markus 66: while (custom_environment) {
67: struct envstring *ce = custom_environment;
68: custom_environment = ce->next;
1.58 djm 69: free(ce->s);
70: free(ce);
1.5 markus 71: }
72: if (forced_command) {
1.58 djm 73: free(forced_command);
1.5 markus 74: forced_command = NULL;
75: }
1.51 djm 76: if (authorized_principals) {
1.58 djm 77: free(authorized_principals);
1.51 djm 78: authorized_principals = NULL;
79: }
1.32 reyk 80: forced_tun_device = -1;
1.15 markus 81: channel_clear_permitted_opens();
1.5 markus 82: }
83:
1.10 markus 84: /*
85: * return 1 if access is granted, 0 if not.
86: * side effect: sets key option flags
87: */
1.1 markus 88: int
1.12 markus 89: auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
1.1 markus 90: {
91: const char *cp;
1.15 markus 92: int i;
1.5 markus 93:
94: /* reset options */
95: auth_clear_options();
1.13 markus 96:
97: if (!opts)
98: return 1;
1.5 markus 99:
1.12 markus 100: while (*opts && *opts != ' ' && *opts != '\t') {
1.45 djm 101: cp = "cert-authority";
102: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
103: key_is_cert_authority = 1;
104: opts += strlen(cp);
105: goto next_option;
106: }
1.1 markus 107: cp = "no-port-forwarding";
1.12 markus 108: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
1.24 markus 109: auth_debug_add("Port forwarding disabled.");
1.1 markus 110: no_port_forwarding_flag = 1;
1.12 markus 111: opts += strlen(cp);
1.1 markus 112: goto next_option;
113: }
114: cp = "no-agent-forwarding";
1.12 markus 115: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
1.24 markus 116: auth_debug_add("Agent forwarding disabled.");
1.1 markus 117: no_agent_forwarding_flag = 1;
1.12 markus 118: opts += strlen(cp);
1.1 markus 119: goto next_option;
120: }
121: cp = "no-X11-forwarding";
1.12 markus 122: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
1.24 markus 123: auth_debug_add("X11 forwarding disabled.");
1.1 markus 124: no_x11_forwarding_flag = 1;
1.12 markus 125: opts += strlen(cp);
1.1 markus 126: goto next_option;
127: }
128: cp = "no-pty";
1.12 markus 129: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
1.24 markus 130: auth_debug_add("Pty allocation disabled.");
1.1 markus 131: no_pty_flag = 1;
1.41 djm 132: opts += strlen(cp);
133: goto next_option;
134: }
135: cp = "no-user-rc";
136: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
137: auth_debug_add("User rc file execution disabled.");
138: no_user_rc = 1;
1.12 markus 139: opts += strlen(cp);
1.1 markus 140: goto next_option;
141: }
142: cp = "command=\"";
1.12 markus 143: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
144: opts += strlen(cp);
1.51 djm 145: if (forced_command != NULL)
1.58 djm 146: free(forced_command);
1.12 markus 147: forced_command = xmalloc(strlen(opts) + 1);
1.1 markus 148: i = 0;
1.12 markus 149: while (*opts) {
150: if (*opts == '"')
1.1 markus 151: break;
1.12 markus 152: if (*opts == '\\' && opts[1] == '"') {
153: opts += 2;
1.1 markus 154: forced_command[i++] = '"';
155: continue;
156: }
1.12 markus 157: forced_command[i++] = *opts++;
1.1 markus 158: }
1.12 markus 159: if (!*opts) {
1.1 markus 160: debug("%.100s, line %lu: missing end quote",
1.10 markus 161: file, linenum);
1.24 markus 162: auth_debug_add("%.100s, line %lu: missing end quote",
1.10 markus 163: file, linenum);
1.58 djm 164: free(forced_command);
1.14 markus 165: forced_command = NULL;
166: goto bad_option;
1.1 markus 167: }
1.38 dtucker 168: forced_command[i] = '\0';
1.54 djm 169: auth_debug_add("Forced command.");
1.51 djm 170: opts++;
171: goto next_option;
172: }
173: cp = "principals=\"";
174: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
175: opts += strlen(cp);
176: if (authorized_principals != NULL)
1.58 djm 177: free(authorized_principals);
1.51 djm 178: authorized_principals = xmalloc(strlen(opts) + 1);
179: i = 0;
180: while (*opts) {
181: if (*opts == '"')
182: break;
183: if (*opts == '\\' && opts[1] == '"') {
184: opts += 2;
185: authorized_principals[i++] = '"';
186: continue;
187: }
188: authorized_principals[i++] = *opts++;
189: }
190: if (!*opts) {
191: debug("%.100s, line %lu: missing end quote",
192: file, linenum);
193: auth_debug_add("%.100s, line %lu: missing end quote",
194: file, linenum);
1.58 djm 195: free(authorized_principals);
1.51 djm 196: authorized_principals = NULL;
197: goto bad_option;
198: }
199: authorized_principals[i] = '\0';
200: auth_debug_add("principals: %.900s",
201: authorized_principals);
1.12 markus 202: opts++;
1.1 markus 203: goto next_option;
204: }
205: cp = "environment=\"";
1.26 markus 206: if (options.permit_user_env &&
207: strncasecmp(opts, cp, strlen(cp)) == 0) {
1.1 markus 208: char *s;
209: struct envstring *new_envstring;
1.15 markus 210:
1.12 markus 211: opts += strlen(cp);
212: s = xmalloc(strlen(opts) + 1);
1.1 markus 213: i = 0;
1.12 markus 214: while (*opts) {
215: if (*opts == '"')
1.1 markus 216: break;
1.12 markus 217: if (*opts == '\\' && opts[1] == '"') {
218: opts += 2;
1.1 markus 219: s[i++] = '"';
220: continue;
221: }
1.12 markus 222: s[i++] = *opts++;
1.1 markus 223: }
1.12 markus 224: if (!*opts) {
1.1 markus 225: debug("%.100s, line %lu: missing end quote",
1.10 markus 226: file, linenum);
1.24 markus 227: auth_debug_add("%.100s, line %lu: missing end quote",
1.10 markus 228: file, linenum);
1.58 djm 229: free(s);
1.14 markus 230: goto bad_option;
1.1 markus 231: }
1.38 dtucker 232: s[i] = '\0';
1.24 markus 233: auth_debug_add("Adding to environment: %.900s", s);
1.1 markus 234: debug("Adding to environment: %.900s", s);
1.12 markus 235: opts++;
1.61 ! djm 236: new_envstring = xcalloc(1, sizeof(struct envstring));
1.1 markus 237: new_envstring->s = s;
238: new_envstring->next = custom_environment;
239: custom_environment = new_envstring;
240: goto next_option;
241: }
242: cp = "from=\"";
1.12 markus 243: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
244: const char *remote_ip = get_remote_ipaddr();
245: const char *remote_host = get_canonical_hostname(
1.28 markus 246: options.use_dns);
1.12 markus 247: char *patterns = xmalloc(strlen(opts) + 1);
1.15 markus 248:
1.12 markus 249: opts += strlen(cp);
1.1 markus 250: i = 0;
1.12 markus 251: while (*opts) {
252: if (*opts == '"')
1.1 markus 253: break;
1.12 markus 254: if (*opts == '\\' && opts[1] == '"') {
255: opts += 2;
1.1 markus 256: patterns[i++] = '"';
257: continue;
258: }
1.12 markus 259: patterns[i++] = *opts++;
1.1 markus 260: }
1.12 markus 261: if (!*opts) {
1.1 markus 262: debug("%.100s, line %lu: missing end quote",
1.10 markus 263: file, linenum);
1.24 markus 264: auth_debug_add("%.100s, line %lu: missing end quote",
1.10 markus 265: file, linenum);
1.58 djm 266: free(patterns);
1.14 markus 267: goto bad_option;
1.1 markus 268: }
1.38 dtucker 269: patterns[i] = '\0';
1.12 markus 270: opts++;
1.43 djm 271: switch (match_host_and_ip(remote_host, remote_ip,
272: patterns)) {
273: case 1:
1.58 djm 274: free(patterns);
1.43 djm 275: /* Host name matches. */
276: goto next_option;
277: case -1:
278: debug("%.100s, line %lu: invalid criteria",
279: file, linenum);
280: auth_debug_add("%.100s, line %lu: "
281: "invalid criteria", file, linenum);
282: /* FALLTHROUGH */
283: case 0:
1.58 djm 284: free(patterns);
1.27 itojun 285: logit("Authentication tried for %.100s with "
1.12 markus 286: "correct key but not from a permitted "
287: "host (host=%.200s, ip=%.200s).",
288: pw->pw_name, remote_host, remote_ip);
1.24 markus 289: auth_debug_add("Your host '%.200s' is not "
1.12 markus 290: "permitted to use this key for login.",
291: remote_host);
1.43 djm 292: break;
1.1 markus 293: }
1.43 djm 294: /* deny access */
295: return 0;
1.15 markus 296: }
297: cp = "permitopen=\"";
298: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
1.29 djm 299: char *host, *p;
1.44 djm 300: int port;
1.15 markus 301: char *patterns = xmalloc(strlen(opts) + 1);
302:
303: opts += strlen(cp);
304: i = 0;
305: while (*opts) {
306: if (*opts == '"')
307: break;
308: if (*opts == '\\' && opts[1] == '"') {
309: opts += 2;
310: patterns[i++] = '"';
311: continue;
312: }
313: patterns[i++] = *opts++;
314: }
315: if (!*opts) {
316: debug("%.100s, line %lu: missing end quote",
317: file, linenum);
1.29 djm 318: auth_debug_add("%.100s, line %lu: missing "
319: "end quote", file, linenum);
1.58 djm 320: free(patterns);
1.15 markus 321: goto bad_option;
322: }
1.38 dtucker 323: patterns[i] = '\0';
1.15 markus 324: opts++;
1.29 djm 325: p = patterns;
326: host = hpdelim(&p);
327: if (host == NULL || strlen(host) >= NI_MAXHOST) {
328: debug("%.100s, line %lu: Bad permitopen "
1.31 deraadt 329: "specification <%.100s>", file, linenum,
1.29 djm 330: patterns);
1.24 markus 331: auth_debug_add("%.100s, line %lu: "
1.29 djm 332: "Bad permitopen specification", file,
333: linenum);
1.58 djm 334: free(patterns);
1.15 markus 335: goto bad_option;
336: }
1.30 deraadt 337: host = cleanhostname(host);
1.55 dtucker 338: if (p == NULL || (port = permitopen_port(p)) < 0) {
1.29 djm 339: debug("%.100s, line %lu: Bad permitopen port "
340: "<%.100s>", file, linenum, p ? p : "");
1.24 markus 341: auth_debug_add("%.100s, line %lu: "
1.20 stevesk 342: "Bad permitopen port", file, linenum);
1.58 djm 343: free(patterns);
1.15 markus 344: goto bad_option;
345: }
1.57 djm 346: if ((options.allow_tcp_forwarding & FORWARD_LOCAL) != 0)
1.20 stevesk 347: channel_add_permitted_opens(host, port);
1.58 djm 348: free(patterns);
1.32 reyk 349: goto next_option;
350: }
351: cp = "tunnel=\"";
352: if (strncasecmp(opts, cp, strlen(cp)) == 0) {
353: char *tun = NULL;
354: opts += strlen(cp);
355: tun = xmalloc(strlen(opts) + 1);
356: i = 0;
357: while (*opts) {
358: if (*opts == '"')
359: break;
360: tun[i++] = *opts++;
361: }
362: if (!*opts) {
363: debug("%.100s, line %lu: missing end quote",
364: file, linenum);
365: auth_debug_add("%.100s, line %lu: missing end quote",
366: file, linenum);
1.58 djm 367: free(tun);
1.32 reyk 368: forced_tun_device = -1;
369: goto bad_option;
370: }
1.38 dtucker 371: tun[i] = '\0';
1.32 reyk 372: forced_tun_device = a2tun(tun, NULL);
1.58 djm 373: free(tun);
1.33 reyk 374: if (forced_tun_device == SSH_TUNID_ERR) {
1.32 reyk 375: debug("%.100s, line %lu: invalid tun device",
376: file, linenum);
377: auth_debug_add("%.100s, line %lu: invalid tun device",
378: file, linenum);
379: forced_tun_device = -1;
380: goto bad_option;
381: }
382: auth_debug_add("Forced tun device: %d", forced_tun_device);
383: opts++;
1.1 markus 384: goto next_option;
385: }
386: next_option:
387: /*
388: * Skip the comma, and move to the next option
389: * (or break out if there are no more).
390: */
1.12 markus 391: if (!*opts)
1.1 markus 392: fatal("Bugs in auth-options.c option processing.");
1.12 markus 393: if (*opts == ' ' || *opts == '\t')
1.1 markus 394: break; /* End of options. */
1.12 markus 395: if (*opts != ',')
1.1 markus 396: goto bad_option;
1.12 markus 397: opts++;
1.1 markus 398: /* Process the next option. */
399: }
1.22 provos 400:
1.1 markus 401: /* grant access */
402: return 1;
403:
404: bad_option:
1.27 itojun 405: logit("Bad options in %.100s file, line %lu: %.50s",
1.12 markus 406: file, linenum, opts);
1.24 markus 407: auth_debug_add("Bad options in %.100s file, line %lu: %.50s",
1.12 markus 408: file, linenum, opts);
1.22 provos 409:
1.1 markus 410: /* deny access */
411: return 0;
412: }
1.45 djm 413:
1.52 djm 414: #define OPTIONS_CRITICAL 1
415: #define OPTIONS_EXTENSIONS 2
416: static int
417: parse_option_list(u_char *optblob, size_t optblob_len, struct passwd *pw,
418: u_int which, int crit,
419: int *cert_no_port_forwarding_flag,
420: int *cert_no_agent_forwarding_flag,
421: int *cert_no_x11_forwarding_flag,
422: int *cert_no_pty_flag,
423: int *cert_no_user_rc,
424: char **cert_forced_command,
425: int *cert_source_address_done)
1.45 djm 426: {
1.52 djm 427: char *command, *allowed;
428: const char *remote_ip;
1.59 djm 429: char *name = NULL;
430: u_char *data_blob = NULL;
1.46 djm 431: u_int nlen, dlen, clen;
1.45 djm 432: Buffer c, data;
1.52 djm 433: int ret = -1, found;
1.45 djm 434:
435: buffer_init(&data);
436:
437: /* Make copy to avoid altering original */
438: buffer_init(&c);
1.52 djm 439: buffer_append(&c, optblob, optblob_len);
1.45 djm 440:
441: while (buffer_len(&c) > 0) {
1.53 djm 442: if ((name = buffer_get_cstring_ret(&c, &nlen)) == NULL ||
1.46 djm 443: (data_blob = buffer_get_string_ret(&c, &dlen)) == NULL) {
1.50 djm 444: error("Certificate options corrupt");
1.45 djm 445: goto out;
446: }
1.46 djm 447: buffer_append(&data, data_blob, dlen);
1.52 djm 448: debug3("found certificate option \"%.100s\" len %u",
1.46 djm 449: name, dlen);
1.52 djm 450: found = 0;
451: if ((which & OPTIONS_EXTENSIONS) != 0) {
452: if (strcmp(name, "permit-X11-forwarding") == 0) {
453: *cert_no_x11_forwarding_flag = 0;
454: found = 1;
455: } else if (strcmp(name,
456: "permit-agent-forwarding") == 0) {
457: *cert_no_agent_forwarding_flag = 0;
458: found = 1;
459: } else if (strcmp(name,
460: "permit-port-forwarding") == 0) {
461: *cert_no_port_forwarding_flag = 0;
462: found = 1;
463: } else if (strcmp(name, "permit-pty") == 0) {
464: *cert_no_pty_flag = 0;
465: found = 1;
466: } else if (strcmp(name, "permit-user-rc") == 0) {
467: *cert_no_user_rc = 0;
468: found = 1;
469: }
470: }
471: if (!found && (which & OPTIONS_CRITICAL) != 0) {
472: if (strcmp(name, "force-command") == 0) {
1.53 djm 473: if ((command = buffer_get_cstring_ret(&data,
1.52 djm 474: &clen)) == NULL) {
475: error("Certificate constraint \"%s\" "
476: "corrupt", name);
477: goto out;
478: }
479: if (*cert_forced_command != NULL) {
480: error("Certificate has multiple "
481: "force-command options");
1.58 djm 482: free(command);
1.52 djm 483: goto out;
484: }
485: *cert_forced_command = command;
486: found = 1;
1.45 djm 487: }
1.52 djm 488: if (strcmp(name, "source-address") == 0) {
1.53 djm 489: if ((allowed = buffer_get_cstring_ret(&data,
1.52 djm 490: &clen)) == NULL) {
491: error("Certificate constraint "
492: "\"%s\" corrupt", name);
493: goto out;
494: }
495: if ((*cert_source_address_done)++) {
496: error("Certificate has multiple "
497: "source-address options");
1.58 djm 498: free(allowed);
1.52 djm 499: goto out;
500: }
501: remote_ip = get_remote_ipaddr();
502: switch (addr_match_cidr_list(remote_ip,
503: allowed)) {
504: case 1:
505: /* accepted */
1.58 djm 506: free(allowed);
1.52 djm 507: break;
508: case 0:
509: /* no match */
510: logit("Authentication tried for %.100s "
511: "with valid certificate but not "
512: "from a permitted host "
513: "(ip=%.200s).", pw->pw_name,
514: remote_ip);
515: auth_debug_add("Your address '%.200s' "
516: "is not permitted to use this "
517: "certificate for login.",
518: remote_ip);
1.58 djm 519: free(allowed);
1.52 djm 520: goto out;
521: case -1:
522: error("Certificate source-address "
523: "contents invalid");
1.58 djm 524: free(allowed);
1.52 djm 525: goto out;
526: }
527: found = 1;
1.46 djm 528: }
1.52 djm 529: }
530:
531: if (!found) {
532: if (crit) {
533: error("Certificate critical option \"%s\" "
534: "is not supported", name);
1.45 djm 535: goto out;
1.52 djm 536: } else {
537: logit("Certificate extension \"%s\" "
538: "is not supported", name);
1.45 djm 539: }
1.52 djm 540: } else if (buffer_len(&data) != 0) {
541: error("Certificate option \"%s\" corrupt "
1.45 djm 542: "(extra data)", name);
543: goto out;
544: }
545: buffer_clear(&data);
1.58 djm 546: free(name);
547: free(data_blob);
1.59 djm 548: name = NULL;
549: data_blob = NULL;
1.45 djm 550: }
1.50 djm 551: /* successfully parsed all options */
1.45 djm 552: ret = 0;
553:
1.52 djm 554: out:
555: if (ret != 0 &&
556: cert_forced_command != NULL &&
557: *cert_forced_command != NULL) {
1.58 djm 558: free(*cert_forced_command);
1.52 djm 559: *cert_forced_command = NULL;
560: }
561: if (name != NULL)
1.58 djm 562: free(name);
1.52 djm 563: if (data_blob != NULL)
1.58 djm 564: free(data_blob);
1.52 djm 565: buffer_free(&data);
566: buffer_free(&c);
567: return ret;
568: }
569:
570: /*
571: * Set options from critical certificate options. These supersede user key
572: * options so this must be called after auth_parse_options().
573: */
574: int
575: auth_cert_options(Key *k, struct passwd *pw)
576: {
577: int cert_no_port_forwarding_flag = 1;
578: int cert_no_agent_forwarding_flag = 1;
579: int cert_no_x11_forwarding_flag = 1;
580: int cert_no_pty_flag = 1;
581: int cert_no_user_rc = 1;
582: char *cert_forced_command = NULL;
583: int cert_source_address_done = 0;
584:
585: if (key_cert_is_legacy(k)) {
586: /* All options are in the one field for v00 certs */
587: if (parse_option_list(buffer_ptr(&k->cert->critical),
588: buffer_len(&k->cert->critical), pw,
589: OPTIONS_CRITICAL|OPTIONS_EXTENSIONS, 1,
590: &cert_no_port_forwarding_flag,
591: &cert_no_agent_forwarding_flag,
592: &cert_no_x11_forwarding_flag,
593: &cert_no_pty_flag,
594: &cert_no_user_rc,
595: &cert_forced_command,
596: &cert_source_address_done) == -1)
597: return -1;
598: } else {
599: /* Separate options and extensions for v01 certs */
600: if (parse_option_list(buffer_ptr(&k->cert->critical),
601: buffer_len(&k->cert->critical), pw,
602: OPTIONS_CRITICAL, 1, NULL, NULL, NULL, NULL, NULL,
603: &cert_forced_command,
604: &cert_source_address_done) == -1)
605: return -1;
606: if (parse_option_list(buffer_ptr(&k->cert->extensions),
607: buffer_len(&k->cert->extensions), pw,
608: OPTIONS_EXTENSIONS, 1,
609: &cert_no_port_forwarding_flag,
610: &cert_no_agent_forwarding_flag,
611: &cert_no_x11_forwarding_flag,
612: &cert_no_pty_flag,
613: &cert_no_user_rc,
614: NULL, NULL) == -1)
615: return -1;
616: }
617:
1.45 djm 618: no_port_forwarding_flag |= cert_no_port_forwarding_flag;
619: no_agent_forwarding_flag |= cert_no_agent_forwarding_flag;
620: no_x11_forwarding_flag |= cert_no_x11_forwarding_flag;
621: no_pty_flag |= cert_no_pty_flag;
622: no_user_rc |= cert_no_user_rc;
623: /* CA-specified forced command supersedes key option */
624: if (cert_forced_command != NULL) {
625: if (forced_command != NULL)
1.58 djm 626: free(forced_command);
1.45 djm 627: forced_command = cert_forced_command;
628: }
1.52 djm 629: return 0;
1.45 djm 630: }
631: