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/* $OpenBSD: authfd.h,v 1.49 2020/06/26 05:03:36 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
* Functions to interface with the SSH_AUTHENTICATION_FD socket.
*
* As far as I am concerned, the code I have written for this software
* can be used freely for any purpose. Any derived versions of this
* software must be clearly marked as such, and if the derived work is
* incompatible with the protocol description in the RFC file, it must be
* called by a name other than "ssh" or "Secure Shell".
*/
#ifndef AUTHFD_H
#define AUTHFD_H
/* List of identities returned by ssh_fetch_identitylist() */
struct ssh_identitylist {
size_t nkeys;
struct sshkey **keys;
char **comments;
};
int ssh_get_authentication_socket(int *fdp);
int ssh_get_authentication_socket_path(const char *authsocket, int *fdp);
void ssh_close_authentication_socket(int sock);
int ssh_lock_agent(int sock, int lock, const char *password);
int ssh_fetch_identitylist(int sock, struct ssh_identitylist **idlp);
void ssh_free_identitylist(struct ssh_identitylist *idl);
int ssh_add_identity_constrained(int sock, struct sshkey *key,
const char *comment, u_int life, u_int confirm, u_int maxsign,
const char *provider);
int ssh_agent_has_key(int sock, const struct sshkey *key);
int ssh_remove_identity(int sock, const struct sshkey *key);
int ssh_update_card(int sock, int add, const char *reader_id,
const char *pin, u_int life, u_int confirm);
int ssh_remove_all_identities(int sock, int version);
int ssh_agent_sign(int sock, const struct sshkey *key,
u_char **sigp, size_t *lenp,
const u_char *data, size_t datalen, const char *alg, u_int compat);
/* Messages for the authentication agent connection. */
#define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1
#define SSH_AGENT_RSA_IDENTITIES_ANSWER 2
#define SSH_AGENTC_RSA_CHALLENGE 3
#define SSH_AGENT_RSA_RESPONSE 4
#define SSH_AGENT_FAILURE 5
#define SSH_AGENT_SUCCESS 6
#define SSH_AGENTC_ADD_RSA_IDENTITY 7
#define SSH_AGENTC_REMOVE_RSA_IDENTITY 8
#define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9
/* private OpenSSH extensions for SSH2 */
#define SSH2_AGENTC_REQUEST_IDENTITIES 11
#define SSH2_AGENT_IDENTITIES_ANSWER 12
#define SSH2_AGENTC_SIGN_REQUEST 13
#define SSH2_AGENT_SIGN_RESPONSE 14
#define SSH2_AGENTC_ADD_IDENTITY 17
#define SSH2_AGENTC_REMOVE_IDENTITY 18
#define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19
/* smartcard */
#define SSH_AGENTC_ADD_SMARTCARD_KEY 20
#define SSH_AGENTC_REMOVE_SMARTCARD_KEY 21
/* lock/unlock the agent */
#define SSH_AGENTC_LOCK 22
#define SSH_AGENTC_UNLOCK 23
/* add key with constraints */
#define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED 24
#define SSH2_AGENTC_ADD_ID_CONSTRAINED 25
#define SSH_AGENTC_ADD_SMARTCARD_KEY_CONSTRAINED 26
#define SSH_AGENT_CONSTRAIN_LIFETIME 1
#define SSH_AGENT_CONSTRAIN_CONFIRM 2
#define SSH_AGENT_CONSTRAIN_MAXSIGN 3
#define SSH_AGENT_CONSTRAIN_EXTENSION 255
/* extended failure messages */
#define SSH2_AGENT_FAILURE 30
/* additional error code for ssh.com's ssh-agent2 */
#define SSH_COM_AGENT2_FAILURE 102
#define SSH_AGENT_OLD_SIGNATURE 0x01
#define SSH_AGENT_RSA_SHA2_256 0x02
#define SSH_AGENT_RSA_SHA2_512 0x04
#endif /* AUTHFD_H */
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