1 /* 2 * Dropbear SSH 3 * 4 * Copyright (c) 2002,2003 Matt Johnston 5 * Copyright (c) 2004 by Mihnea Stoenescu 6 * All rights reserved. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 24 * SOFTWARE. */ 25 26 #include "includes.h" 27 #include "service.h" 28 #include "dbutil.h" 29 #include "packet.h" 30 #include "buffer.h" 31 #include "session.h" 32 #include "ssh.h" 33 34 void send_msg_service_request(char* servicename) { 35 36 TRACE(("enter send_msg_service_request: servicename='%s'", servicename)) 37 38 CHECKCLEARTOWRITE(); 39 40 buf_putbyte(ses.writepayload, SSH_MSG_SERVICE_REQUEST); 41 buf_putstring(ses.writepayload, servicename, strlen(servicename)); 42 43 encrypt_packet(); 44 TRACE(("leave send_msg_service_request")) 45 } 46 47 /* This just sets up the state variables right for the main client session loop 48 * to deal with */ 49 void recv_msg_service_accept() { 50 51 unsigned char* servicename; 52 unsigned int len; 53 54 TRACE(("enter recv_msg_service_accept")) 55 56 servicename = buf_getstring(ses.payload, &len); 57 58 /* ssh-userauth */ 59 if (cli_ses.state == SERVICE_AUTH_REQ_SENT 60 && len == SSH_SERVICE_USERAUTH_LEN 61 && strncmp(SSH_SERVICE_USERAUTH, servicename, len) == 0) { 62 63 cli_ses.state = SERVICE_AUTH_ACCEPT_RCVD; 64 m_free(servicename); 65 TRACE(("leave recv_msg_service_accept: done ssh-userauth")) 66 return; 67 } 68 69 /* ssh-connection */ 70 if (cli_ses.state == SERVICE_CONN_REQ_SENT 71 && len == SSH_SERVICE_CONNECTION_LEN 72 && strncmp(SSH_SERVICE_CONNECTION, servicename, len) == 0) { 73 74 if (ses.authstate.authdone != 1) { 75 dropbear_exit("request for connection before auth"); 76 } 77 78 cli_ses.state = SERVICE_CONN_ACCEPT_RCVD; 79 m_free(servicename); 80 TRACE(("leave recv_msg_service_accept: done ssh-connection")) 81 return; 82 } 83 84 dropbear_exit("unrecognised service accept"); 85 } 86
