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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. */
#include "includes.h"
#include "dbutil.h"
#include "service.h"
#include "session.h"
#include "packet.h"
#include "ssh.h"
#include "auth.h"
static void send_msg_service_accept(const char *name, int len);
/* processes a SSH_MSG_SERVICE_REQUEST, returning 0 if finished,
* 1 if not */
void recv_msg_service_request() {
char * name;
unsigned int len;
TRACE(("enter recv_msg_service_request"))
name = buf_getstring(ses.payload, &len);
/* ssh-userauth */
if (len == SSH_SERVICE_USERAUTH_LEN &&
strncmp(SSH_SERVICE_USERAUTH, name, len) == 0) {
send_msg_service_accept(name, len);
m_free(name);
TRACE(("leave recv_msg_service_request: done ssh-userauth"))
return;
}
/* ssh-connection */
if (len == SSH_SERVICE_CONNECTION_LEN &&
(strncmp(SSH_SERVICE_CONNECTION, name, len) == 0)) {
if (ses.authstate.authdone != 1) {
dropbear_exit("Request for connection before auth");
}
send_msg_service_accept(name, len);
m_free(name);
TRACE(("leave recv_msg_service_request: done ssh-connection"))
return;
}
m_free(name);
/* TODO this should be a MSG_DISCONNECT */
dropbear_exit("Unrecognised SSH_MSG_SERVICE_REQUEST");
}
static void send_msg_service_accept(const char *name, int len) {
TRACE(("accepting service %s", name))
CHECKCLEARTOWRITE();
buf_putbyte(ses.writepayload, SSH_MSG_SERVICE_ACCEPT);
buf_putstring(ses.writepayload, name, len);
encrypt_packet();
}
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