f9930e137b
* The 'kex guesses' bugfix from OpenSSH 3.6 triggers a bug in a few other SSH v2 implementations and causes connections to stall. OpenSSH 3.6.1 disables this bugfix when interoperating with these implementations. * RSA blinding is now used by ssh(1), sshd(8) and ssh-agent(1). in order to avoid potential timing attacks against the RSA keys. Older versions of OpenSSH have been using RSA blinding in ssh-keysign(1) only. * ssh-agent(1) optionally requires user confirmation if a key gets used, see '-c' in ssh-add(1). * sshd(8) now handles PermitRootLogin correctly when UsePrivilegeSeparation is enabled. * sshd(8) now removes X11 cookies when a session gets closed. * ssh-keysign(8) is disabled by default and only enabled if the new EnableSSHKeysign option is set in the global ssh_config(5) file. * ssh(1) and sshd(8) now handle 'kex guesses' correctly (key exchange guesses). * ssh(1) no longer overwrites SIG_IGN. This matches behaviour from rsh(1) and is used by backup tools. * setting ProxyCommand to 'none' disables the proxy feature, see ssh_config(5). * scp(1) supports add -1 and -2. * scp(1) supports bandwidth limiting. * sftp(1) displays a progressmeter. * sftp(1) has improved error handling for scripting.
97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/* $NetBSD: authfd.h,v 1.1.1.10 2003/04/03 05:57:16 itojun Exp $ */
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/* $OpenBSD: authfd.h,v 1.32 2003/01/23 13:50:27 markus Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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* Functions to interface with the SSH_AUTHENTICATION_FD socket.
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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#ifndef AUTHFD_H
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#define AUTHFD_H
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#include "buffer.h"
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/* Messages for the authentication agent connection. */
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#define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1
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#define SSH_AGENT_RSA_IDENTITIES_ANSWER 2
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#define SSH_AGENTC_RSA_CHALLENGE 3
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#define SSH_AGENT_RSA_RESPONSE 4
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#define SSH_AGENT_FAILURE 5
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#define SSH_AGENT_SUCCESS 6
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#define SSH_AGENTC_ADD_RSA_IDENTITY 7
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#define SSH_AGENTC_REMOVE_RSA_IDENTITY 8
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#define SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9
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/* private OpenSSH extensions for SSH2 */
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#define SSH2_AGENTC_REQUEST_IDENTITIES 11
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#define SSH2_AGENT_IDENTITIES_ANSWER 12
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#define SSH2_AGENTC_SIGN_REQUEST 13
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#define SSH2_AGENT_SIGN_RESPONSE 14
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#define SSH2_AGENTC_ADD_IDENTITY 17
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#define SSH2_AGENTC_REMOVE_IDENTITY 18
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#define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19
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/* smartcard */
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#define SSH_AGENTC_ADD_SMARTCARD_KEY 20
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#define SSH_AGENTC_REMOVE_SMARTCARD_KEY 21
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/* lock/unlock the agent */
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#define SSH_AGENTC_LOCK 22
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#define SSH_AGENTC_UNLOCK 23
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/* add key with constraints */
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#define SSH_AGENTC_ADD_RSA_ID_CONSTRAINED 24
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#define SSH2_AGENTC_ADD_ID_CONSTRAINED 25
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#define SSH_AGENT_CONSTRAIN_LIFETIME 1
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#define SSH_AGENT_CONSTRAIN_CONFIRM 2
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/* extended failure messages */
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#define SSH2_AGENT_FAILURE 30
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/* additional error code for ssh.com's ssh-agent2 */
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#define SSH_COM_AGENT2_FAILURE 102
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#define SSH_AGENT_OLD_SIGNATURE 0x01
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typedef struct {
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int fd;
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Buffer identities;
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int howmany;
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} AuthenticationConnection;
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int ssh_agent_present(void);
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int ssh_get_authentication_socket(void);
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void ssh_close_authentication_socket(int);
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AuthenticationConnection *ssh_get_authentication_connection(void);
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void ssh_close_authentication_connection(AuthenticationConnection *);
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int ssh_get_num_identities(AuthenticationConnection *, int);
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Key *ssh_get_first_identity(AuthenticationConnection *, char **, int);
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Key *ssh_get_next_identity(AuthenticationConnection *, char **, int);
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int ssh_add_identity(AuthenticationConnection *, Key *, const char *);
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int ssh_add_identity_constrained(AuthenticationConnection *, Key *,
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const char *, u_int, u_int);
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int ssh_remove_identity(AuthenticationConnection *, Key *);
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int ssh_remove_all_identities(AuthenticationConnection *, int);
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int ssh_lock_agent(AuthenticationConnection *, int, const char *);
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int ssh_update_card(AuthenticationConnection *, int, const char *, const char *);
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int
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ssh_decrypt_challenge(AuthenticationConnection *, Key *, BIGNUM *, u_char[16],
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u_int, u_char[16]);
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int
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ssh_agent_sign(AuthenticationConnection *, Key *, u_char **, u_int *, u_char *,
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u_int);
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#endif /* AUTHFD_H */
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