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view agentfwd.h @ 1653:76189c9ffea2

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External Public-Key Authentication API (#72) * Implemented dynamic loading of an external plug-in shared library to delegate public key authentication * Moved conditional compilation of the plugin infrastructure into the configure.ac script to be able to add -ldl to dropbear build only when the flag is enabled * Added tags file to the ignore list * Updated API to have the constructor to return function pointers in the pliugin instance. Added support for passing user name to the checkpubkey function. Added options to the session returned by the plugin and have dropbear to parse and process them * Added -rdynamic to the linker flags when EPKA is enabled * Changed the API to pass a previously created session to the checkPubKey function (created during preauth) * Added documentation to the API * Added parameter addrstring to plugin creation function * Modified the API to retrieve the auth options. Instead of having them as field of the EPKASession struct, they are stored internally (plugin-dependent) in the plugin/session and retrieved through a pointer to a function (in the session) * Changed option string to be a simple char * instead of unsigned char *
author fabriziobertocci <fabriziobertocci@gmail.com>
date Wed, 15 May 2019 09:43:57 -0400
parents 06d52bcb8094
children a53e7d2d60be
line wrap: on
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/*
 * Dropbear - a SSH2 server
 * 
 * Copyright (c) 2002,2003 Matt Johnston
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE. */
#ifndef DROPBEAR_AGENTFWD_H_
#define DROPBEAR_AGENTFWD_H_

#include "includes.h"
#include "chansession.h"
#include "channel.h"
#include "auth.h"
#include "list.h"

#if DROPBEAR_CLI_AGENTFWD

/* An agent reply can be reasonably large, as it can
 * contain a list of all public keys held by the agent.
 * 10000 is arbitrary */
#define MAX_AGENT_REPLY  10000

/* client functions */
void cli_load_agent_keys(m_list * ret_list);
void agent_buf_sign(buffer *sigblob, sign_key *key, 
	const buffer *data_buf);
void cli_setup_agent(const struct Channel *channel);

#ifdef __hpux
#define seteuid(a)       setresuid(-1, (a), -1)
#define setegid(a)       setresgid(-1, (a), -1)
#endif

extern const struct ChanType cli_chan_agent;

#endif /* DROPBEAR_CLI_AGENTFWD */

#if DROPBEAR_SVR_AGENTFWD

int svr_agentreq(struct ChanSess * chansess);
void svr_agentcleanup(struct ChanSess * chansess);
void svr_agentset(const struct ChanSess *chansess);

#endif /* DROPBEAR_SVR_AGENTFWD */

#endif /* DROPBEAR_AGENTFWD_H_ */