Annotation of src/usr.bin/ssh/ssh.h, Revision 1.36
1.1 deraadt 1: /*
1.25 deraadt 2: *
3: * ssh.h
4: *
5: * Author: Tatu Ylonen <ylo@cs.hut.fi>
6: *
7: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
8: * All rights reserved
9: *
10: * Created: Fri Mar 17 17:09:37 1995 ylo
11: *
12: * Generic header file for ssh.
13: *
14: */
1.1 deraadt 15:
1.36 ! markus 16: /* RCSID("$Id: ssh.h,v 1.35 2000/03/28 20:31:29 markus Exp $"); */
1.1 deraadt 17:
18: #ifndef SSH_H
19: #define SSH_H
20:
21: #include "rsa.h"
22: #include "cipher.h"
23:
1.26 markus 24: /*
25: * The default cipher used if IDEA is not supported by the remote host. It is
26: * recommended that this be one of the mandatory ciphers (DES, 3DES), though
27: * that is not required.
28: */
1.1 deraadt 29: #define SSH_FALLBACK_CIPHER SSH_CIPHER_3DES
30:
31: /* Cipher used for encrypting authentication files. */
32: #define SSH_AUTHFILE_CIPHER SSH_CIPHER_3DES
33:
34: /* Default port number. */
35: #define SSH_DEFAULT_PORT 22
36:
37: /* Maximum number of TCP/IP ports forwarded per direction. */
38: #define SSH_MAX_FORWARDS_PER_DIRECTION 100
39:
1.26 markus 40: /*
41: * Maximum number of RSA authentication identity files that can be specified
42: * in configuration files or on the command line.
43: */
1.1 deraadt 44: #define SSH_MAX_IDENTITY_FILES 100
45:
1.26 markus 46: /*
47: * Major protocol version. Different version indicates major incompatiblity
48: * that prevents communication.
49: */
1.1 deraadt 50: #define PROTOCOL_MAJOR 1
51:
1.26 markus 52: /*
53: * Minor protocol version. Different version indicates minor incompatibility
54: * that does not prevent interoperation.
55: */
1.13 markus 56: #define PROTOCOL_MINOR 5
1.1 deraadt 57:
1.26 markus 58: /*
59: * Name for the service. The port named by this service overrides the
60: * default port if present.
61: */
1.1 deraadt 62: #define SSH_SERVICE_NAME "ssh"
63:
1.2 deraadt 64: #define ETCDIR "/etc"
65: #define PIDDIR "/var/run"
66:
1.26 markus 67: /*
68: * System-wide file containing host keys of known hosts. This file should be
69: * world-readable.
70: */
1.1 deraadt 71: #define SSH_SYSTEM_HOSTFILE ETCDIR "/ssh_known_hosts"
72:
1.26 markus 73: /*
74: * Of these, ssh_host_key must be readable only by root, whereas ssh_config
75: * should be world-readable.
76: */
77: #define HOST_KEY_FILE ETCDIR "/ssh_host_key"
78: #define SERVER_CONFIG_FILE ETCDIR "/sshd_config"
79: #define HOST_CONFIG_FILE ETCDIR "/ssh_config"
1.36 ! markus 80: #define DSA_KEY_FILE ETCDIR "/ssh_dsa_key"
1.2 deraadt 81:
82: #define SSH_PROGRAM "/usr/bin/ssh"
1.1 deraadt 83:
1.26 markus 84: /*
85: * The process id of the daemon listening for connections is saved here to
86: * make it easier to kill the correct daemon when necessary.
87: */
1.1 deraadt 88: #define SSH_DAEMON_PID_FILE PIDDIR "/sshd.pid"
89:
1.26 markus 90: /*
91: * The directory in user\'s home directory in which the files reside. The
92: * directory should be world-readable (though not all files are).
93: */
1.1 deraadt 94: #define SSH_USER_DIR ".ssh"
95:
1.26 markus 96: /*
97: * Per-user file containing host keys of known hosts. This file need not be
98: * readable by anyone except the user him/herself, though this does not
99: * contain anything particularly secret.
100: */
1.1 deraadt 101: #define SSH_USER_HOSTFILE "~/.ssh/known_hosts"
102:
1.26 markus 103: /*
104: * Name of the default file containing client-side authentication key. This
105: * file should only be readable by the user him/herself.
106: */
1.1 deraadt 107: #define SSH_CLIENT_IDENTITY ".ssh/identity"
108:
1.26 markus 109: /*
110: * Configuration file in user\'s home directory. This file need not be
111: * readable by anyone but the user him/herself, but does not contain anything
112: * particularly secret. If the user\'s home directory resides on an NFS
113: * volume where root is mapped to nobody, this may need to be world-readable.
114: */
1.1 deraadt 115: #define SSH_USER_CONFFILE ".ssh/config"
116:
1.26 markus 117: /*
118: * File containing a list of those rsa keys that permit logging in as this
119: * user. This file need not be readable by anyone but the user him/herself,
120: * but does not contain anything particularly secret. If the user\'s home
121: * directory resides on an NFS volume where root is mapped to nobody, this
122: * may need to be world-readable. (This file is read by the daemon which is
123: * running as root.)
124: */
1.1 deraadt 125: #define SSH_USER_PERMITTED_KEYS ".ssh/authorized_keys"
126:
1.26 markus 127: /*
128: * Per-user and system-wide ssh "rc" files. These files are executed with
129: * /bin/sh before starting the shell or command if they exist. They will be
130: * passed "proto cookie" as arguments if X11 forwarding with spoofing is in
131: * use. xauth will be run if neither of these exists.
132: */
1.1 deraadt 133: #define SSH_USER_RC ".ssh/rc"
134: #define SSH_SYSTEM_RC ETCDIR "/sshrc"
135:
1.26 markus 136: /*
137: * Ssh-only version of /etc/hosts.equiv. Additionally, the daemon may use
138: * ~/.rhosts and /etc/hosts.equiv if rhosts authentication is enabled.
139: */
1.1 deraadt 140: #define SSH_HOSTS_EQUIV ETCDIR "/shosts.equiv"
141:
1.26 markus 142: /*
143: * Name of the environment variable containing the pathname of the
144: * authentication socket.
145: */
1.13 markus 146: #define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK"
1.15 markus 147:
1.26 markus 148: /*
149: * Name of the environment variable containing the pathname of the
150: * authentication socket.
151: */
1.15 markus 152: #define SSH_AGENTPID_ENV_NAME "SSH_AGENT_PID"
1.29 markus 153:
154: /*
155: * Default path to ssh-askpass used by ssh-add,
156: * environment variable for overwriting the default location
157: */
158: #define SSH_ASKPASS_DEFAULT "/usr/X11R6/bin/ssh-askpass"
159: #define SSH_ASKPASS_ENV "SSH_ASKPASS"
1.1 deraadt 160:
1.26 markus 161: /*
162: * Force host key length and server key length to differ by at least this
163: * many bits. This is to make double encryption with rsaref work.
164: */
1.1 deraadt 165: #define SSH_KEY_BITS_RESERVED 128
166:
1.26 markus 167: /*
168: * Length of the session key in bytes. (Specified as 256 bits in the
169: * protocol.)
170: */
1.1 deraadt 171: #define SSH_SESSION_KEY_LENGTH 32
172:
173: /* Name of Kerberos service for SSH to use. */
174: #define KRB4_SERVICE_NAME "rcmd"
175:
1.26 markus 176: /*
177: * Authentication methods. New types can be added, but old types should not
178: * be removed for compatibility. The maximum allowed value is 31.
179: */
1.1 deraadt 180: #define SSH_AUTH_RHOSTS 1
181: #define SSH_AUTH_RSA 2
182: #define SSH_AUTH_PASSWORD 3
183: #define SSH_AUTH_RHOSTS_RSA 4
1.24 markus 184: #define SSH_AUTH_TIS 5
1.1 deraadt 185: #define SSH_AUTH_KERBEROS 6
186: #define SSH_PASS_KERBEROS_TGT 7
1.26 markus 187: /* 8 to 15 are reserved */
1.1 deraadt 188: #define SSH_PASS_AFS_TOKEN 21
189:
190: /* Protocol flags. These are bit masks. */
1.26 markus 191: #define SSH_PROTOFLAG_SCREEN_NUMBER 1 /* X11 forwarding includes screen */
192: #define SSH_PROTOFLAG_HOST_IN_FWD_OPEN 2 /* forwarding opens contain host */
193:
194: /*
195: * Definition of message types. New values can be added, but old values
196: * should not be removed or without careful consideration of the consequences
197: * for compatibility. The maximum value is 254; value 255 is reserved for
198: * future extension.
199: */
200: /* Message name */ /* msg code */ /* arguments */
1.1 deraadt 201: #define SSH_MSG_NONE 0 /* no message */
202: #define SSH_MSG_DISCONNECT 1 /* cause (string) */
203: #define SSH_SMSG_PUBLIC_KEY 2 /* ck,msk,srvk,hostk */
1.3 provos 204: #define SSH_CMSG_SESSION_KEY 3 /* key (BIGNUM) */
1.1 deraadt 205: #define SSH_CMSG_USER 4 /* user (string) */
206: #define SSH_CMSG_AUTH_RHOSTS 5 /* user (string) */
1.3 provos 207: #define SSH_CMSG_AUTH_RSA 6 /* modulus (BIGNUM) */
208: #define SSH_SMSG_AUTH_RSA_CHALLENGE 7 /* int (BIGNUM) */
209: #define SSH_CMSG_AUTH_RSA_RESPONSE 8 /* int (BIGNUM) */
1.1 deraadt 210: #define SSH_CMSG_AUTH_PASSWORD 9 /* pass (string) */
211: #define SSH_CMSG_REQUEST_PTY 10 /* TERM, tty modes */
212: #define SSH_CMSG_WINDOW_SIZE 11 /* row,col,xpix,ypix */
213: #define SSH_CMSG_EXEC_SHELL 12 /* */
214: #define SSH_CMSG_EXEC_CMD 13 /* cmd (string) */
215: #define SSH_SMSG_SUCCESS 14 /* */
216: #define SSH_SMSG_FAILURE 15 /* */
217: #define SSH_CMSG_STDIN_DATA 16 /* data (string) */
218: #define SSH_SMSG_STDOUT_DATA 17 /* data (string) */
219: #define SSH_SMSG_STDERR_DATA 18 /* data (string) */
220: #define SSH_CMSG_EOF 19 /* */
221: #define SSH_SMSG_EXITSTATUS 20 /* status (int) */
222: #define SSH_MSG_CHANNEL_OPEN_CONFIRMATION 21 /* channel (int) */
223: #define SSH_MSG_CHANNEL_OPEN_FAILURE 22 /* channel (int) */
224: #define SSH_MSG_CHANNEL_DATA 23 /* ch,data (int,str) */
225: #define SSH_MSG_CHANNEL_CLOSE 24 /* channel (int) */
226: #define SSH_MSG_CHANNEL_CLOSE_CONFIRMATION 25 /* channel (int) */
227: /* SSH_CMSG_X11_REQUEST_FORWARDING 26 OBSOLETE */
228: #define SSH_SMSG_X11_OPEN 27 /* channel (int) */
229: #define SSH_CMSG_PORT_FORWARD_REQUEST 28 /* p,host,hp (i,s,i) */
230: #define SSH_MSG_PORT_OPEN 29 /* ch,h,p (i,s,i) */
231: #define SSH_CMSG_AGENT_REQUEST_FORWARDING 30 /* */
232: #define SSH_SMSG_AGENT_OPEN 31 /* port (int) */
233: #define SSH_MSG_IGNORE 32 /* string */
234: #define SSH_CMSG_EXIT_CONFIRMATION 33 /* */
235: #define SSH_CMSG_X11_REQUEST_FORWARDING 34 /* proto,data (s,s) */
236: #define SSH_CMSG_AUTH_RHOSTS_RSA 35 /* user,mod (s,mpi) */
237: #define SSH_MSG_DEBUG 36 /* string */
238: #define SSH_CMSG_REQUEST_COMPRESSION 37 /* level 1-9 (int) */
1.13 markus 239: #define SSH_CMSG_MAX_PACKET_SIZE 38 /* size 4k-1024k (int) */
1.24 markus 240: #define SSH_CMSG_AUTH_TIS 39 /* we use this for s/key */
241: #define SSH_SMSG_AUTH_TIS_CHALLENGE 40 /* challenge (string) */
242: #define SSH_CMSG_AUTH_TIS_RESPONSE 41 /* response (string) */
1.1 deraadt 243: #define SSH_CMSG_AUTH_KERBEROS 42 /* (KTEXT) */
244: #define SSH_SMSG_AUTH_KERBEROS_RESPONSE 43 /* (KTEXT) */
245: #define SSH_CMSG_HAVE_KERBEROS_TGT 44 /* credentials (s) */
246: #define SSH_CMSG_HAVE_AFS_TOKEN 65 /* token (s) */
247:
248: /*------------ definitions for login.c -------------*/
249:
1.26 markus 250: /*
251: * Returns the time when the user last logged in. Returns 0 if the
252: * information is not available. This must be called before record_login.
253: * The host from which the user logged in is stored in buf.
254: */
1.25 deraadt 255: unsigned long
256: get_last_login_time(uid_t uid, const char *logname,
257: char *buf, unsigned int bufsize);
1.1 deraadt 258:
1.26 markus 259: /*
260: * Records that the user has logged in. This does many things normally done
261: * by login(1).
262: */
1.25 deraadt 263: void
264: record_login(int pid, const char *ttyname, const char *user, uid_t uid,
1.32 markus 265: const char *host, struct sockaddr *addr);
1.1 deraadt 266:
1.26 markus 267: /*
268: * Records that the user has logged out. This does many thigs normally done
269: * by login(1) or init.
270: */
1.25 deraadt 271: void record_logout(int pid, const char *ttyname);
1.1 deraadt 272:
273: /*------------ definitions for sshconnect.c ----------*/
274:
1.26 markus 275: /*
276: * Opens a TCP/IP connection to the remote server on the given host. If port
277: * is 0, the default port will be used. If anonymous is zero, a privileged
278: * port will be allocated to make the connection. This requires super-user
279: * privileges if anonymous is false. Connection_attempts specifies the
280: * maximum number of tries, one per second. This returns true on success,
281: * and zero on failure. If the connection is successful, this calls
282: * packet_set_connection for the connection.
283: */
1.25 deraadt 284: int
1.32 markus 285: ssh_connect(const char *host, struct sockaddr_storage * hostaddr,
1.27 markus 286: u_short port, int connection_attempts,
1.25 deraadt 287: int anonymous, uid_t original_real_uid,
288: const char *proxy_command);
1.1 deraadt 289:
1.26 markus 290: /*
291: * Starts a dialog with the server, and authenticates the current user on the
292: * server. This does not need any extra privileges. The basic connection to
293: * the server must already have been established before this is called. If
294: * login fails, this function prints an error and never returns. This
295: * initializes the random state, and leaves it initialized (it will also have
296: * references from the packet module).
297: */
1.18 markus 298:
1.25 deraadt 299: void
300: ssh_login(int host_key_valid, RSA * host_key, const char *host,
1.32 markus 301: struct sockaddr * hostaddr, uid_t original_real_uid);
1.1 deraadt 302:
303: /*------------ Definitions for various authentication methods. -------*/
304:
1.26 markus 305: /*
306: * Tries to authenticate the user using the .rhosts file. Returns true if
307: * authentication succeeds. If ignore_rhosts is non-zero, this will not
308: * consider .rhosts and .shosts (/etc/hosts.equiv will still be used).
309: */
1.25 deraadt 310: int auth_rhosts(struct passwd * pw, const char *client_user);
1.1 deraadt 311:
1.26 markus 312: /*
313: * Tries to authenticate the user using the .rhosts file and the host using
314: * its host key. Returns true if authentication succeeds.
315: */
1.25 deraadt 316: int
1.34 markus 317: auth_rhosts_rsa(struct passwd * pw, const char *client_user, RSA* client_host_key);
1.1 deraadt 318:
1.26 markus 319: /*
320: * Tries to authenticate the user using password. Returns true if
321: * authentication succeeds.
322: */
1.25 deraadt 323: int auth_password(struct passwd * pw, const char *password);
1.1 deraadt 324:
1.26 markus 325: /*
326: * Performs the RSA authentication dialog with the client. This returns 0 if
327: * the client could not be authenticated, and 1 if authentication was
328: * successful. This may exit if there is a serious protocol violation.
329: */
1.25 deraadt 330: int auth_rsa(struct passwd * pw, BIGNUM * client_n);
1.1 deraadt 331:
1.26 markus 332: /*
333: * Parses an RSA key (number of bits, e, n) from a string. Moves the pointer
334: * over the key. Skips any whitespace at the beginning and at end.
335: */
1.25 deraadt 336: int auth_rsa_read_key(char **cpp, unsigned int *bitsp, BIGNUM * e, BIGNUM * n);
1.1 deraadt 337:
1.26 markus 338: /*
339: * Returns the name of the machine at the other end of the socket. The
340: * returned string should be freed by the caller.
341: */
1.25 deraadt 342: char *get_remote_hostname(int socket);
1.1 deraadt 343:
1.26 markus 344: /*
345: * Return the canonical name of the host in the other side of the current
346: * connection (as returned by packet_get_connection). The host name is
347: * cached, so it is efficient to call this several times.
348: */
1.1 deraadt 349: const char *get_canonical_hostname(void);
350:
1.26 markus 351: /*
352: * Returns the remote IP address as an ascii string. The value need not be
353: * freed by the caller.
354: */
1.1 deraadt 355: const char *get_remote_ipaddr(void);
356:
357: /* Returns the port number of the peer of the socket. */
1.25 deraadt 358: int get_peer_port(int sock);
1.1 deraadt 359:
1.32 markus 360: /* Returns the port number of the remote/local host. */
1.25 deraadt 361: int get_remote_port(void);
1.32 markus 362: int get_local_port(void);
363:
1.1 deraadt 364:
1.26 markus 365: /*
366: * Performs the RSA authentication challenge-response dialog with the client,
367: * and returns true (non-zero) if the client gave the correct answer to our
368: * challenge; returns zero if the client gives a wrong answer.
369: */
1.34 markus 370: int auth_rsa_challenge_dialog(RSA *pk);
1.1 deraadt 371:
1.26 markus 372: /*
373: * Reads a passphrase from /dev/tty with echo turned off. Returns the
374: * passphrase (allocated with xmalloc). Exits if EOF is encountered. If
375: * from_stdin is true, the passphrase will be read from stdin instead.
376: */
1.25 deraadt 377: char *read_passphrase(const char *prompt, int from_stdin);
1.1 deraadt 378:
1.26 markus 379: /*
380: * Saves the authentication (private) key in a file, encrypting it with
381: * passphrase. The identification of the file (lowest 64 bits of n) will
382: * precede the key to provide identification of the key without needing a
383: * passphrase.
384: */
1.25 deraadt 385: int
386: save_private_key(const char *filename, const char *passphrase,
387: RSA * private_key, const char *comment);
1.1 deraadt 388:
1.26 markus 389: /*
390: * Loads the public part of the key file (public key and comment). Returns 0
391: * if an error occurred; zero if the public key was successfully read. The
392: * comment of the key is returned in comment_return if it is non-NULL; the
393: * caller must free the value with xfree.
394: */
1.25 deraadt 395: int
396: load_public_key(const char *filename, RSA * pub,
397: char **comment_return);
1.1 deraadt 398:
1.26 markus 399: /*
400: * Loads the private key from the file. Returns 0 if an error is encountered
401: * (file does not exist or is not readable, or passphrase is bad). This
402: * initializes the private key. The comment of the key is returned in
403: * comment_return if it is non-NULL; the caller must free the value with
404: * xfree.
405: */
1.25 deraadt 406: int
407: load_private_key(const char *filename, const char *passphrase,
408: RSA * private_key, char **comment_return);
1.20 markus 409:
410: /*------------ Definitions for logging. -----------------------*/
411:
412: /* Supported syslog facilities and levels. */
1.25 deraadt 413: typedef enum {
414: SYSLOG_FACILITY_DAEMON,
415: SYSLOG_FACILITY_USER,
416: SYSLOG_FACILITY_AUTH,
417: SYSLOG_FACILITY_LOCAL0,
418: SYSLOG_FACILITY_LOCAL1,
419: SYSLOG_FACILITY_LOCAL2,
420: SYSLOG_FACILITY_LOCAL3,
421: SYSLOG_FACILITY_LOCAL4,
422: SYSLOG_FACILITY_LOCAL5,
423: SYSLOG_FACILITY_LOCAL6,
424: SYSLOG_FACILITY_LOCAL7
425: } SyslogFacility;
426:
427: typedef enum {
428: SYSLOG_LEVEL_QUIET,
429: SYSLOG_LEVEL_FATAL,
430: SYSLOG_LEVEL_ERROR,
431: SYSLOG_LEVEL_INFO,
432: SYSLOG_LEVEL_VERBOSE,
433: SYSLOG_LEVEL_DEBUG
434: } LogLevel;
1.20 markus 435: /* Initializes logging. */
1.25 deraadt 436: void log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr);
1.20 markus 437:
438: /* Logging implementation, depending on server or client */
1.25 deraadt 439: void do_log(LogLevel level, const char *fmt, va_list args);
1.22 markus 440:
441: /* name to facility/level */
442: SyslogFacility log_facility_number(char *name);
443: LogLevel log_level_number(char *name);
1.20 markus 444:
445: /* Output a message to syslog or stderr */
1.25 deraadt 446: void fatal(const char *fmt,...) __attribute__((format(printf, 1, 2)));
447: void error(const char *fmt,...) __attribute__((format(printf, 1, 2)));
448: void log(const char *fmt,...) __attribute__((format(printf, 1, 2)));
449: void verbose(const char *fmt,...) __attribute__((format(printf, 1, 2)));
450: void debug(const char *fmt,...) __attribute__((format(printf, 1, 2)));
451:
1.20 markus 452: /* same as fatal() but w/o logging */
1.25 deraadt 453: void fatal_cleanup(void);
1.20 markus 454:
1.26 markus 455: /*
456: * Registers a cleanup function to be called by fatal()/fatal_cleanup()
457: * before exiting. It is permissible to call fatal_remove_cleanup for the
458: * function itself from the function.
459: */
1.25 deraadt 460: void fatal_add_cleanup(void (*proc) (void *context), void *context);
1.20 markus 461:
462: /* Removes a cleanup function to be called at fatal(). */
1.25 deraadt 463: void fatal_remove_cleanup(void (*proc) (void *context), void *context);
1.1 deraadt 464:
1.36 ! markus 465: /* ---- misc */
! 466:
1.26 markus 467: /*
468: * Expands tildes in the file name. Returns data allocated by xmalloc.
469: * Warning: this calls getpw*.
470: */
1.25 deraadt 471: char *tilde_expand_filename(const char *filename, uid_t my_uid);
1.1 deraadt 472:
1.26 markus 473: /*
474: * Performs the interactive session. This handles data transmission between
475: * the client and the program. Note that the notion of stdin, stdout, and
476: * stderr in this function is sort of reversed: this function writes to stdin
477: * (of the child program), and reads from stdout and stderr (of the child
478: * program).
479: */
1.25 deraadt 480: void server_loop(int pid, int fdin, int fdout, int fderr);
1.36 ! markus 481: void server_loop2(void);
1.1 deraadt 482:
483: /* Client side main loop for the interactive session. */
1.25 deraadt 484: int client_loop(int have_pty, int escape_char);
1.1 deraadt 485:
486: /* Linked list of custom environment strings (see auth-rsa.c). */
487: struct envstring {
1.25 deraadt 488: struct envstring *next;
489: char *s;
1.1 deraadt 490: };
1.30 deraadt 491:
492: /*
493: * Ensure all of data on socket comes through. f==read || f==write
494: */
1.33 d 495: ssize_t atomicio(ssize_t (*f)(), int fd, void *s, size_t n);
1.30 deraadt 496:
1.1 deraadt 497: #ifdef KRB4
498: #include <krb.h>
1.26 markus 499: /*
500: * Performs Kerberos v4 mutual authentication with the client. This returns 0
501: * if the client could not be authenticated, and 1 if authentication was
502: * successful. This may exit if there is a serious protocol violation.
503: */
1.25 deraadt 504: int auth_krb4(const char *server_user, KTEXT auth, char **client);
505: int krb4_init(uid_t uid);
506: void krb4_cleanup_proc(void *ignore);
1.28 markus 507: int auth_krb4_password(struct passwd * pw, const char *password);
1.4 dugsong 508:
509: #ifdef AFS
510: #include <kafs.h>
511:
512: /* Accept passed Kerberos v4 ticket-granting ticket and AFS tokens. */
1.25 deraadt 513: int auth_kerberos_tgt(struct passwd * pw, const char *string);
514: int auth_afs_token(struct passwd * pw, const char *token_string);
1.1 deraadt 515:
1.25 deraadt 516: int creds_to_radix(CREDENTIALS * creds, unsigned char *buf);
517: int radix_to_creds(const char *buf, CREDENTIALS * creds);
518: #endif /* AFS */
1.1 deraadt 519:
1.25 deraadt 520: #endif /* KRB4 */
1.9 markus 521:
522: #ifdef SKEY
523: #include <skey.h>
1.25 deraadt 524: char *skey_fake_keyinfo(char *username);
1.28 markus 525: int auth_skey_password(struct passwd * pw, const char *password);
1.25 deraadt 526: #endif /* SKEY */
1.32 markus 527:
528: /* AF_UNSPEC or AF_INET or AF_INET6 */
529: extern int IPv4or6;
1.1 deraadt 530:
1.25 deraadt 531: #endif /* SSH_H */