authfd.h revision 295367 
1/* $OpenBSD: authfd.h,v 1.38 2015/01/14 20:05:27 djm 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/* List of identities returned by ssh_fetch_identitylist() */
20struct ssh_identitylist {
21	size_t nkeys;
22	struct sshkey **keys;
23	char **comments;
24};
25
26int	ssh_get_authentication_socket(int *fdp);
27void	ssh_close_authentication_socket(int sock);
28
29int	ssh_lock_agent(int sock, int lock, const char *password);
30int	ssh_fetch_identitylist(int sock, int version,
31	    struct ssh_identitylist **idlp);
32void	ssh_free_identitylist(struct ssh_identitylist *idl);
33int	ssh_add_identity_constrained(int sock, struct sshkey *key,
34	    const char *comment, u_int life, u_int confirm);
35int	ssh_remove_identity(int sock, struct sshkey *key);
36int	ssh_update_card(int sock, int add, const char *reader_id,
37	    const char *pin, u_int life, u_int confirm);
38int	ssh_remove_all_identities(int sock, int version);
39
40int	ssh_decrypt_challenge(int sock, struct sshkey* key, BIGNUM *challenge,
41	    u_char session_id[16], u_char response[16]);
42int	ssh_agent_sign(int sock, struct sshkey *key,
43	    u_char **sigp, size_t *lenp,
44	    const u_char *data, size_t datalen, u_int compat);
45
46/* Messages for the authentication agent connection. */
47#define SSH_AGENTC_REQUEST_RSA_IDENTITIES	1
48#define SSH_AGENT_RSA_IDENTITIES_ANSWER		2
49#define SSH_AGENTC_RSA_CHALLENGE		3
50#define SSH_AGENT_RSA_RESPONSE			4
51#define SSH_AGENT_FAILURE			5
52#define SSH_AGENT_SUCCESS			6
53#define SSH_AGENTC_ADD_RSA_IDENTITY		7
54#define SSH_AGENTC_REMOVE_RSA_IDENTITY		8
55#define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES	9
56
57/* private OpenSSH extensions for SSH2 */
58#define SSH2_AGENTC_REQUEST_IDENTITIES		11
59#define SSH2_AGENT_IDENTITIES_ANSWER		12
60#define SSH2_AGENTC_SIGN_REQUEST		13
61#define SSH2_AGENT_SIGN_RESPONSE		14
62#define SSH2_AGENTC_ADD_IDENTITY		17
63#define SSH2_AGENTC_REMOVE_IDENTITY		18
64#define SSH2_AGENTC_REMOVE_ALL_IDENTITIES	19
65
66/* smartcard */
67#define SSH_AGENTC_ADD_SMARTCARD_KEY		20
68#define SSH_AGENTC_REMOVE_SMARTCARD_KEY		21
69
70/* lock/unlock the agent */
71#define SSH_AGENTC_LOCK				22
72#define SSH_AGENTC_UNLOCK			23
73
74/* add key with constraints */
75#define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED	24
76#define SSH2_AGENTC_ADD_ID_CONSTRAINED		25
77#define SSH_AGENTC_ADD_SMARTCARD_KEY_CONSTRAINED 26
78
79#define	SSH_AGENT_CONSTRAIN_LIFETIME		1
80#define	SSH_AGENT_CONSTRAIN_CONFIRM		2
81
82/* extended failure messages */
83#define SSH2_AGENT_FAILURE			30
84
85/* additional error code for ssh.com's ssh-agent2 */
86#define SSH_COM_AGENT2_FAILURE			102
87
88#define	SSH_AGENT_OLD_SIGNATURE			0x01
89
90#endif				/* AUTHFD_H */
91