/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include /* * smb_com_find * * Request Format: (same as core Search Protocol - "Find First" form) * * Client Request Description * ================================== ================================= * * BYTE smb_wct; value = 2 * WORD smb_count; max number of entries to find * WORD smb_attr; search attribute * WORD smb_bcc; minimum value = 5 * BYTE smb_ident1; ASCII (04) * BYTE smb_pathname[]; filename (may contain global characters) * BYTE smb_ident2; Variable Block (05) * WORD smb_keylen; resume key length (zero if "Find First") * BYTE smb_resumekey[*]; "Find Next" key, * = value of smb_keylen * * Response Format: (same as core Search Protocol) * * Server Response Description * ================================== ================================= * BYTE smb_wct; value = 1 * WORD smb_count; number of entries found * WORD smb_bcc; minimum value = 3 * BYTE smb_ident; Variable Block (05) * WORD smb_datalen; data length * BYTE smb_data[*]; directory entries * * Directory Information Entry (dir_info) Format: (same as core Search Protocol) * * BYTE find_buf_reserved[21]; reserved (resume_key) * BYTE find_buf_attr; attribute * WORD find_buf_time; modification time (hhhhh mmmmmm xxxxx) * where 'xxxxx' is in 2 second increments * WORD find_buf_date; modification date (yyyyyyy mmmm ddddd) * DWORD find_buf_size; file size * STRING find_buf_pname[13]; file name -- ASCII (null terminated) * * The resume_key has the following format: * * BYTE sr_res; reserved: * bit 7 - reserved for consumer use * bit 5,6 - reserved for system use * (must be preserved) * bits 0-4 - reserved for server * (must be preserved) * BYTE sr_name[11]; pathname sought. * Format: 1-8 character file name, * left justified 0-3 character extension, * BYTE sr_findid[1]; uniquely identifies find through * find_close * BYTE sr_server[4]; available for server use * (must be non-zero) * BYTE sr_res[4]; reserved for consumer use * * Service: * * The Find protocol finds the directory entry or group of entries matching the * specified file pathname. The filename portion of the pathname may contain * global (wild card) characters. * * The Find protocol is used to match the find OS/2 system call. The protocols * "Find", "Find_Unique" and "Find_Close" are methods of reading (or searching) * a directory. These protocols may be used in place of the core "Search" * protocol when LANMAN 1.0 dialect has been negotiated. There may be cases * where the Search protocol will still be used. * * The format of the Find protocol is the same as the core "Search" protocol. * The difference is that the directory is logically Opened with a Find protocol * and logically closed with the Find Close protocol. This allows the Server to * make better use of its resources. Search buffers are thus held (allowing * search resumption via presenting a "resume_key") until a Find Close protocol * is received. The sr_findid field of each resume key is a unique identifier * (within the session) of the search from "Find" through "Find close". Thus if * the consumer does "Find ahead", any find buffers containing resume keys with * the matching find id may be released when the Find Close is requested. * * As is true of a failing open, if a Find request (Find "first" request where * resume_key is null) fails (no entries are found), no find close protocol is * expected. * * If no global characters are present, a "Find Unique" protocol should be used * (only one entry is expected and find close need not be sent). * * The file path name in the request specifies the file to be sought. The * attribute field indicates the attributes that the file must have. If the * attribute is zero then only normal files are returned. If the system file, * hidden or directory attributes are specified then the search is inclusive -- * both the specified type(s) of files and normal files are returned. If the * volume label attribute is specified then the search is exclusive, and only * the volume label entry is returned * * The max-count field specifies the number of directory entries to be returned. * The response will contain zero or more directory entries as determined by the * count-returned field. No more than max-count entries will be returned. Only * entries that match the sought filename/attribute will be returned. * * The resume_key field must be null (length = 0) on the initial ("Find First") * find request. Subsequent find requests intended to continue a search must * contain the resume_key field extracted from the last directory entry of the * previous response. The resume_key field is self-contained, for on calls * containing a resume_key neither the attribute or pathname fields will be * valid in the request. A find request will terminate when either the * requested maximum number of entries that match the named file are found, or * the end of directory is reached without the maximum number of matches being * found. A response containing no entries indicates that no matching entries * were found between the starting point of the search and the end of directory. * * There may be multiple matching entries in response to a single request as * Find supports "wild cards" in the file name (last component of the pathname). * "?" is the wild single characters, "*" or "null" will match any number of * filename characters within a single part of the filename component. The * filename is divided into two parts -- an eight character name and a three * character extension. The name and extension are divided by a ".". * * If a filename part commences with one or more "?"s then exactly that number * of characters will be matched by the Wild Cards, e.g., "??x" will equal "abx" * but not "abcx" or "ax". When a filename part has trailing "?"s then it will * match the specified number of characters or less, e.g., "x??" will match * "xab", "xa" and "x", but not "xabc". If only "?"s are present in the filename * part, then it is handled as for trailing "?"s "*" or "null" match entire * pathname parts, thus "*.abc" or ".abc" will match any file with an extension * of "abc". "*.*", "*" or "null" will match all files in a directory. * * Unprotected servers require the requester to have read permission on the * subtree containing the directory searched (the share specifies read * permission). * * Protected servers require the requester to have permission to search the * specified directory. * * If a Find requests more data than can be placed in a message of the * max-xmit-size for the TID specified, the server will return only the number * of entries which will fit. * * The number of entries returned will be the minimum of: * 1. The number of entries requested. * 2. The number of (complete) entries that will fit in the negotiated SMB * buffer. * 3. The number of entries that match the requested name pattern and * attributes. * * The error ERRnofiles set in smb_err field of the response header or a zero * value in smb_count of the response indicates no matching entry was found. * * The resume search key returned along with each directory entry is a server * defined key which when returned in the Find Next protocol, allows the * directory search to be resumed at the directory entry fol lowing the one * denoted by the resume search key. * * The date is in the following format: * bits: * 1 1 1 1 1 1 * 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 * y y y y y y y m m m m d d d d d * where: * y - bit of year 0-119 (1980-2099) * m - bit of month 1-12 * d - bit of day 1-31 * * The time is in the following format: * bits: * 1 1 1 1 1 1 * 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 * h h h h h m m m m m m x x x x x * where: * h - bit of hour (0-23) * m - bit of minute (0-59) * x - bit of 2 second increment * * Find may generate the following errors. * ERRDOS/ERRnofiles * ERRDOS/ERRbadpath * ERRDOS/ERRnoaccess * ERRDOS/ERRbadaccess * ERRDOS/ERRbadshare * ERRSRV/ERRerror * ERRSRV/ERRaccess * ERRSRV/ERRinvnid */ smb_sdrc_t smb_com_find(struct smb_request *sr) { int rc; unsigned short sattr, count, maxcount; char *path; char filename[14]; uint32_t cookie; struct smb_node *node; unsigned char type; unsigned short key_len; smb_odir_context_t *pc; if (smbsr_decode_vwv(sr, "ww", &maxcount, &sattr) != 0) return (SDRC_ERROR_REPLY); rc = smbsr_decode_data(sr, "%Abw", sr, &path, &type, &key_len); if ((rc != 0) || (type != 0x05)) return (SDRC_ERROR_REPLY); if (key_len == 0) { /* begin search */ if (smb_rdir_open(sr, path, sattr) != 0) return (SDRC_ERROR_REPLY); cookie = 0; } else if (key_len == 21) { sr->smb_sid = 0; if (smb_decode_mbc(&sr->smb_data, SMB_RESUME_KEY_FMT, filename, &sr->smb_sid, &cookie) != 0) { /* We don't know which rdir to close */ return (SDRC_ERROR_REPLY); } sr->sid_odir = smb_odir_lookup_by_sid(sr->tid_tree, sr->smb_sid); if (sr->sid_odir == NULL) { smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); return (SDRC_ERROR_REPLY); } cookie--; /* +1 when returned */ } else { /* We don't know which rdir to close */ return (SDRC_ERROR_REPLY); } (void) smb_encode_mbc(&sr->reply, "bwwbw", 1, 0, VAR_BCC, 5, 0); pc = MEM_ZALLOC("smb", sizeof (*pc)); pc->dc_cookie = cookie; count = 0; node = (struct smb_node *)0; rc = 0; while (count < maxcount) { if ((rc = smb_rdir_next(sr, &node, pc)) != 0) break; (void) smb_encode_mbc(&sr->reply, ".8c3cbl4.bYl13c", pc->dc_name83, pc->dc_name83+9, sr->smb_sid, pc->dc_cookie+1, pc->dc_dattr, smb_gmt_to_local_time(pc->dc_attr.sa_vattr.va_mtime.tv_sec), (int32_t)smb_node_get_size(node, &pc->dc_attr), (*pc->dc_shortname) ? pc->dc_shortname : pc->dc_name); smb_node_release(node); node = (struct smb_node *)0; count++; } MEM_FREE("smb", pc); if ((rc != 0) && (rc != ENOENT)) { /* returned error by smb_rdir_next() */ smb_rdir_close(sr); smbsr_errno(sr, rc); return (SDRC_ERROR_REPLY); } if (count == 0) { smb_rdir_close(sr); smbsr_error(sr, 0, ERRDOS, ERRnofiles); return (SDRC_ERROR_REPLY); } rc = (MBC_LENGTH(&sr->reply) - sr->cur_reply_offset) - 8; if (smb_poke_mbc(&sr->reply, sr->cur_reply_offset, "bwwbw", 1, count, rc+3, 5, rc) < 0) { smb_rdir_close(sr); return (SDRC_ERROR_REPLY); } return (SDRC_NORMAL_REPLY); } /* * smb_com_find_close * * Request Format: (same as core Search Protocol - "Find Next" form) * * Client Request Description * ================================== ================================= * * BYTE smb_wct; value = 2 * WORD smb_count; max number of entries to find * WORD smb_attr; search attribute * WORD smb_bcc; minimum value = 5 * BYTE smb_ident1; ASCII (04) * BYTE smb_pathname[]; null (may contain only null) * BYTE smb_ident2; Variable Block (05) * WORD smb_keylen; resume (close) key length * (may not be zero) * BYTE smb_resumekey[*]; "Find Close" key * (* = value of smb_keylen) * * Response Format: (same format as core Search Protocol) * * Server Response Description * ================================== ================================= * * BYTE smb_wct; value = 1 * WORD smb_reserved; reserved * WORD smb_bcc; value = 3 * BYTE smb_ident; Variable Block (05) * WORD smb_datalen; data length (value = 0) * * The resume_key (or close key) has the following format: * * BYTE sr_res; reserved: * bit 7 - reserved for consumer use * bit 5,6 - reserved for system use * (must be preserved) * bits 0-4 - rsvd for server * (must be preserved by consumer) * BYTE sr_name[11]; pathname sought. * Format: 1-8 character file name, * left justified 0-3 character extension, * left justified (in last 3 chars) * BYTE sr_findid[1]; uniquely identifies find * through find_close * BYTE sr_server[4]; available for server use * (must be non-zero) * BYTE sr_res[4]; reserved for consumer use * * Service: * * The Find_Close protocol closes the association between a Find id * returned (in the resume_key) by the Find protocol and the directory * search. * * Whereas the First Find protocol logically opens the directory, * subsequent find protocols presenting a resume_key further "read" the * directory, the Find Close protocol "closes" the directory allowing the * server to free any resources held in support of the directory search. * * The Find Close protocol is used to match the find Close OS/2 * system call. The protocols "Find", "Find Unique" and "Find Close" are * methods of reading (or searching) a directory. These protocols may * be used in place of the core "Search" protocol when LANMAN 1.0 dialect has * been negotiated. There may be cases where the Search protocol will still be * used. * * Although only the find id portion the resume key should be * required to identify the search being ter minated, the entire * resume_key as returned in the previous Find, either a "Find First" or "Find * Next" is sent to the server in this protocol. * * Find Close may generate the following errors: * * ERRDOS/ERRbadfid * ERRSRV/ERRerror * ERRSRV/ERRinvnid */ smb_sdrc_t smb_com_find_close(struct smb_request *sr) { unsigned short sattr, maxcount; char *path; char filename[14]; uint32_t cookie; unsigned char type; unsigned short key_len; int rc; if (smbsr_decode_vwv(sr, "ww", &maxcount, &sattr) != 0) return (SDRC_ERROR_REPLY); rc = smbsr_decode_data(sr, "%Abw", sr, &path, &type, &key_len); if ((rc != 0) || (type != 0x05)) return (SDRC_ERROR_REPLY); if (key_len == 0) { /* begin search */ smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); return (SDRC_ERROR_REPLY); } if (key_len == 21) { sr->smb_sid = 0; if (smb_decode_mbc(&sr->smb_data, SMB_RESUME_KEY_FMT, filename, &sr->smb_sid, &cookie) != 0) { return (SDRC_ERROR_REPLY); } sr->sid_odir = smb_odir_lookup_by_sid(sr->tid_tree, sr->smb_sid); if (sr->sid_odir == NULL) { smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); return (SDRC_ERROR_REPLY); } cookie--; /* +1 when returned */ } else { return (SDRC_ERROR_REPLY); } smb_rdir_close(sr); if (smbsr_encode_result(sr, 1, 3, "bwwbw", 1, 0, 3, 5, 0)) return (SDRC_ERROR_REPLY); return (SDRC_NORMAL_REPLY); }