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 2008 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 smb_sdrc_t 40 smb_pre_echo(smb_request_t *sr) 41 { 42 DTRACE_SMB_1(op__Echo__start, smb_request_t *, sr); 43 return (SDRC_SUCCESS); 44 } 45 46 void 47 smb_post_echo(smb_request_t *sr) 48 { 49 DTRACE_SMB_1(op__Echo__done, smb_request_t *, sr); 50 } 51 52 smb_sdrc_t 53 smb_com_echo(struct smb_request *sr) 54 { 55 unsigned short necho; 56 unsigned short nbytes; 57 unsigned short i; 58 struct mbuf_chain reply; 59 char *data; 60 61 if (smbsr_decode_vwv(sr, "w", &necho) != 0) 62 return (SDRC_ERROR); 63 64 nbytes = sr->smb_bcc; 65 data = smbsr_malloc(&sr->request_storage, nbytes); 66 67 if (smb_decode_mbc(&sr->smb_data, "#c", nbytes, data)) 68 return (SDRC_ERROR); 69 70 for (i = 1; i <= necho; ++i) { 71 MBC_INIT(&reply, SMB_HEADER_ED_LEN + 10 + nbytes); 72 73 (void) smb_encode_mbc(&reply, SMB_HEADER_ED_FMT, 74 sr->first_smb_com, 75 sr->smb_rcls, 76 sr->smb_reh, 77 sr->smb_err, 78 sr->smb_flg | SMB_FLAGS_REPLY, 79 sr->smb_flg2, 80 sr->smb_pid_high, 81 sr->smb_sig, 82 sr->smb_tid, 83 sr->smb_pid, 84 sr->smb_uid, 85 sr->smb_mid); 86 87 (void) smb_encode_mbc(&reply, "bww#c", 1, i, 88 nbytes, nbytes, data); 89 90 if (sr->session->signing.flags & SMB_SIGNING_ENABLED) 91 smb_sign_reply(sr, &reply); 92 93 (void) smb_session_send(sr->session, 0, &reply); 94 } 95 96 return (SDRC_NO_REPLY); 97 } 98