1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <smbsrv/smb_incl.h> 29 30 /* 31 * The echo request is used to test the connection to the server, 32 * and to see if the server is still responding. The tid is ignored, 33 * so this request may be sent to the server even if there are no 34 * tree connections to the server. 35 * 36 * Each response echoes the data sent, though ByteCount may indicate 37 * no data. If echo-count is zero, no response is sent. 38 */ 39 int 40 smb_com_echo(struct smb_request *sr) 41 { 42 unsigned short necho; 43 unsigned short nbytes; 44 unsigned short i; 45 struct mbuf_chain reply; 46 char *data; 47 48 if (smbsr_decode_vwv(sr, "w", &necho) != 0) { 49 smbsr_decode_error(sr); 50 /* NOTREACHED */ 51 } 52 53 nbytes = sr->smb_bcc; 54 55 data = smbsr_malloc(&sr->request_storage, nbytes); 56 57 (void) smb_decode_mbc(&sr->smb_data, "#c", nbytes, data); 58 59 for (i = 1; i <= necho; ++i) { 60 61 MBC_INIT(&reply, SMB_HEADER_ED_LEN + 10 + nbytes); 62 63 (void) smb_encode_mbc(&reply, SMB_HEADER_ED_FMT, 64 sr->first_smb_com, 65 sr->smb_rcls, 66 sr->smb_reh, 67 sr->smb_err, 68 sr->smb_flg | SMB_FLAGS_REPLY, 69 sr->smb_flg2, 70 sr->smb_pid_high, 71 sr->smb_sig, 72 sr->smb_tid, 73 sr->smb_pid, 74 sr->smb_uid, 75 sr->smb_mid); 76 77 (void) smb_encode_mbc(&reply, "bww#c", 1, i, 78 nbytes, nbytes, data); 79 80 if (sr->session->signing.flags & SMB_SIGNING_ENABLED) 81 smb_sign_reply(sr, &reply); 82 83 (void) smb_session_send(sr->session, 0, &reply); 84 } 85 86 return (SDRC_NO_REPLY); 87 } 88 89 /* 90 * Broadcast messages are not supported. 91 */ 92 int /*ARGSUSED*/ 93 smb_com_send_broadcast_message(struct smb_request *sr) 94 { 95 return (SDRC_UNIMPLEMENTED); 96 } 97 98 /* 99 * Multi-block messages are not supported. 100 */ 101 int /*ARGSUSED*/ 102 smb_com_send_end_mb_message(struct smb_request *sr) 103 { 104 return (SDRC_UNIMPLEMENTED); 105 } 106 107 /* 108 * Single-block messages are not supported. 109 */ 110 int /*ARGSUSED*/ 111 smb_com_send_single_message(struct smb_request *sr) 112 { 113 return (SDRC_UNIMPLEMENTED); 114 } 115 116 /* 117 * Multi-block messages are not supported. 118 */ 119 int /*ARGSUSED*/ 120 smb_com_send_start_mb_message(struct smb_request *sr) 121 { 122 return (SDRC_UNIMPLEMENTED); 123 } 124 125 /* 126 * Multi-block messages are not supported. 127 */ 128 int /*ARGSUSED*/ 129 smb_com_send_text_mb_message(struct smb_request *sr) 130 { 131 return (SDRC_UNIMPLEMENTED); 132 } 133