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899ec9e519
Windows has supported unix domain sockets for a couple of years now; see this article for more information about that: <https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows/> This commit allows libssh to consider using agent authentication on Windows systems. It is mostly removing `#ifndef _WIN32` that prevented the unix domain socket code from being compiled in, and adjusting the use of `read(2)` and `write(2)` to `recv(2)` and `send(2)`, as the former functions are not compatible with sockets on Windows systems. For mingw systems, afunix.h isn't available so we use the technique as was used to resolve building with mingw as used by the curl project in: https://github.com/curl/curl/pull/5170 Signed-off-by: Wez Furlong <wez@fb.com> Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
119 lines
4.0 KiB
C
119 lines
4.0 KiB
C
/*
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* This file is part of the SSH Library
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*
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* Copyright (c) 2008-2009 Andreas Schneider <asn@cryptomilk.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __AGENT_H
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#define __AGENT_H
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#include "libssh/libssh.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_AGENTC_ADD_SMARTCARD_KEY_CONSTRAINED 26
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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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/* Signature flags from draft-miller-ssh-agent-02 */
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#define SSH_AGENT_RSA_SHA2_256 0x02
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#define SSH_AGENT_RSA_SHA2_512 0x04
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struct ssh_agent_struct {
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struct ssh_socket_struct *sock;
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ssh_buffer ident;
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unsigned int count;
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ssh_channel channel;
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};
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/* agent.c */
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/**
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* @brief Create a new ssh agent structure.
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*
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* @return An allocated ssh agent structure or NULL on error.
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*/
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struct ssh_agent_struct *ssh_agent_new(struct ssh_session_struct *session);
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void ssh_agent_close(struct ssh_agent_struct *agent);
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/**
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* @brief Free an allocated ssh agent structure.
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*
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* @param agent The ssh agent structure to free.
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*/
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void ssh_agent_free(struct ssh_agent_struct *agent);
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/**
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* @brief Check if the ssh agent is running.
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*
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* @param session The ssh session to check for the agent.
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*
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* @return 1 if it is running, 0 if not.
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*/
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int ssh_agent_is_running(struct ssh_session_struct *session);
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uint32_t ssh_agent_get_ident_count(struct ssh_session_struct *session);
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ssh_key ssh_agent_get_next_ident(struct ssh_session_struct *session,
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char **comment);
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ssh_key ssh_agent_get_first_ident(struct ssh_session_struct *session,
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char **comment);
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ssh_string ssh_agent_sign_data(ssh_session session,
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const ssh_key pubkey,
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struct ssh_buffer_struct *data);
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#endif /* __AGENT_H */
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