Mercurial > dropbear

annotate svr-service.c @ 1156:a8f4dade70e5

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avoid getpass when not used some systems (like android's bionic) do not provide getpass. you can disable ENABLE_CLI_PASSWORD_AUTH & ENABLE_CLI_INTERACT_AUTH to avoid its use (and rely on pubkey auth), but the link still fails because the support file calls getpass. do not define this func if both of those auth methods are not used.
author Mike Frysinger <vapier@gentoo.org>
date Wed, 21 Oct 2015 22:39:55 +0800
parents aaf576b27a10
children f20038b513a5
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1 /*
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2 * Dropbear - a SSH2 server
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 * of this software and associated documentation files (the "Software"), to deal
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
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25 #include "includes.h"
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26 #include "dbutil.h"
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27 #include "service.h"
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28 #include "session.h"
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29 #include "packet.h"
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30 #include "ssh.h"
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31 #include "auth.h"
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32
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33 static void send_msg_service_accept(char *name, int len);
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35 /* processes a SSH_MSG_SERVICE_REQUEST, returning 0 if finished,
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36 * 1 if not */
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37 void recv_msg_service_request() {
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39 char * name;
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40 unsigned int len;
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41
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42 TRACE(("enter recv_msg_service_request"))
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44 name = buf_getstring(ses.payload, &len);
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46 /* ssh-userauth */
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47 if (len == SSH_SERVICE_USERAUTH_LEN &&
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48 strncmp(SSH_SERVICE_USERAUTH, name, len) == 0) {
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50 send_msg_service_accept(name, len);
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51 m_free(name);
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52 TRACE(("leave recv_msg_service_request: done ssh-userauth"))
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53 return;
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54 }
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56 /* ssh-connection */
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57 if (len == SSH_SERVICE_CONNECTION_LEN &&
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58 (strncmp(SSH_SERVICE_CONNECTION, name, len) == 0)) {
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59 if (ses.authstate.authdone != 1) {
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60 dropbear_exit("Request for connection before auth");
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61 }
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63 send_msg_service_accept(name, len);
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64 m_free(name);
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65 TRACE(("leave recv_msg_service_request: done ssh-connection"))
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66 return;
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67 }
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69 m_free(name);
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70 /* TODO this should be a MSG_DISCONNECT */
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71 dropbear_exit("Unrecognised SSH_MSG_SERVICE_REQUEST");
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74 }
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76 static void send_msg_service_accept(char *name, int len) {
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78 TRACE(("accepting service %s", name))
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80 CHECKCLEARTOWRITE();
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82 buf_putbyte(ses.writepayload, SSH_MSG_SERVICE_ACCEPT);
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83 buf_putstring(ses.writepayload, name, len);
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84
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85 encrypt_packet();
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86
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87 }