authfd.h revision 92555 
1/*	$OpenBSD: authfd.h,v 1.23 2002/03/04 17:27:39 stevesk Exp $	*/
2
3/*
4 * Author: Tatu Ylonen <ylo@cs.hut.fi>
5 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
6 *                    All rights reserved
7 * Functions to interface with the SSH_AUTHENTICATION_FD socket.
8 *
9 * As far as I am concerned, the code I have written for this software
10 * can be used freely for any purpose.  Any derived versions of this
11 * software must be clearly marked as such, and if the derived work is
12 * incompatible with the protocol description in the RFC file, it must be
13 * called by a name other than "ssh" or "Secure Shell".
14 */
15
16#ifndef AUTHFD_H
17#define AUTHFD_H
18
19#include "buffer.h"
20
21/* Messages for the authentication agent connection. */
22#define SSH_AGENTC_REQUEST_RSA_IDENTITIES	1
23#define SSH_AGENT_RSA_IDENTITIES_ANSWER		2
24#define SSH_AGENTC_RSA_CHALLENGE		3
25#define SSH_AGENT_RSA_RESPONSE			4
26#define SSH_AGENT_FAILURE			5
27#define SSH_AGENT_SUCCESS			6
28#define SSH_AGENTC_ADD_RSA_IDENTITY		7
29#define SSH_AGENTC_REMOVE_RSA_IDENTITY		8
30#define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES	9
31
32/* private OpenSSH extensions for SSH2 */
33#define SSH2_AGENTC_REQUEST_IDENTITIES		11
34#define SSH2_AGENT_IDENTITIES_ANSWER		12
35#define SSH2_AGENTC_SIGN_REQUEST		13
36#define SSH2_AGENT_SIGN_RESPONSE		14
37#define SSH2_AGENTC_ADD_IDENTITY		17
38#define SSH2_AGENTC_REMOVE_IDENTITY		18
39#define SSH2_AGENTC_REMOVE_ALL_IDENTITIES	19
40
41/* smartcard */
42#define SSH_AGENTC_ADD_SMARTCARD_KEY		20
43#define SSH_AGENTC_REMOVE_SMARTCARD_KEY	        21
44
45/* extended failure messages */
46#define SSH2_AGENT_FAILURE			30
47
48/* additional error code for ssh.com's ssh-agent2 */
49#define SSH_COM_AGENT2_FAILURE                  102
50
51#define	SSH_AGENT_OLD_SIGNATURE			0x01
52
53typedef struct {
54	int     fd;
55	Buffer  identities;
56	int     howmany;
57}       AuthenticationConnection;
58
59int      ssh_get_authentication_socket(void);
60void     ssh_close_authentication_socket(int);
61
62AuthenticationConnection *ssh_get_authentication_connection(void);
63void     ssh_close_authentication_connection(AuthenticationConnection *);
64int	 ssh_get_num_identities(AuthenticationConnection *, int);
65Key	*ssh_get_first_identity(AuthenticationConnection *, char **, int);
66Key	*ssh_get_next_identity(AuthenticationConnection *, char **, int);
67int	 ssh_add_identity(AuthenticationConnection *, Key *, const char *);
68int	 ssh_remove_identity(AuthenticationConnection *, Key *);
69int	 ssh_remove_all_identities(AuthenticationConnection *, int);
70int	 ssh_update_card(AuthenticationConnection *, int, const char *);
71
72int
73ssh_decrypt_challenge(AuthenticationConnection *, Key *, BIGNUM *, u_char[16],
74    u_int, u_char[16]);
75
76int
77ssh_agent_sign(AuthenticationConnection *, Key *, u_char **, u_int *, u_char *,
78    u_int);
79
80#endif				/* AUTHFD_H */
81