root/source4/libcli/smb2/find.c

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DEFINITIONS

This source file includes following definitions.
  1. smb2_find_send
  2. smb2_find_recv
  3. smb2_find
  4. smb2_find_level_recv
  5. smb2_find_level

   1 /* 
   2    Unix SMB/CIFS implementation.
   3 
   4    SMB2 client find calls
   5 
   6    Copyright (C) Andrew Tridgell 2005
   7    
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12    
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17    
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21 
  22 #include "includes.h"
  23 #include "libcli/raw/libcliraw.h"
  24 #include "libcli/raw/raw_proto.h"
  25 #include "libcli/smb2/smb2.h"
  26 #include "libcli/smb2/smb2_calls.h"
  27 
  28 /*
  29   send a find request
  30 */
  31 struct smb2_request *smb2_find_send(struct smb2_tree *tree, struct smb2_find *io)
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  32 {
  33         struct smb2_request *req;
  34         NTSTATUS status;
  35 
  36         req = smb2_request_init_tree(tree, SMB2_OP_FIND, 0x20, true, 0);
  37         if (req == NULL) return NULL;
  38 
  39         SCVAL(req->out.body, 0x02, io->in.level);
  40         SCVAL(req->out.body, 0x03, io->in.continue_flags);
  41         SIVAL(req->out.body, 0x04, io->in.file_index);
  42         smb2_push_handle(req->out.body+0x08, &io->in.file.handle);
  43 
  44         status = smb2_push_o16s16_string(&req->out, 0x18, io->in.pattern);
  45         if (!NT_STATUS_IS_OK(status)) {
  46                 talloc_free(req);
  47                 return NULL;
  48         }
  49 
  50         SIVAL(req->out.body, 0x1C, io->in.max_response_size);
  51 
  52         smb2_transport_send(req);
  53 
  54         return req;
  55 }
  56 
  57 
  58 /*
  59   recv a find reply
  60 */
  61 NTSTATUS smb2_find_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
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  62                            struct smb2_find *io)
  63 {
  64         NTSTATUS status;
  65 
  66         if (!smb2_request_receive(req) || 
  67             smb2_request_is_error(req)) {
  68                 return smb2_request_destroy(req);
  69         }
  70 
  71         SMB2_CHECK_PACKET_RECV(req, 0x08, true);
  72 
  73         status = smb2_pull_o16s32_blob(&req->in, mem_ctx, 
  74                                        req->in.body+0x02, &io->out.blob);
  75         if (!NT_STATUS_IS_OK(status)) {
  76                 return status;
  77         }
  78 
  79         return smb2_request_destroy(req);
  80 }
  81 
  82 /*
  83   sync find request
  84 */
  85 NTSTATUS smb2_find(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
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  86                    struct smb2_find *io)
  87 {
  88         struct smb2_request *req = smb2_find_send(tree, io);
  89         return smb2_find_recv(req, mem_ctx, io);
  90 }
  91 
  92 
  93 /*
  94   a varient of smb2_find_recv that parses the resulting blob into
  95   smb_search_data structures
  96 */
  97 NTSTATUS smb2_find_level_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
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  98                               uint8_t level, uint_t *count,
  99                               union smb_search_data **io)
 100 {
 101         struct smb2_find f;
 102         NTSTATUS status;
 103         DATA_BLOB b;
 104         enum smb_search_data_level smb_level;
 105         uint_t next_ofs=0;
 106 
 107         switch (level) {
 108         case SMB2_FIND_DIRECTORY_INFO:
 109                 smb_level = RAW_SEARCH_DATA_DIRECTORY_INFO;
 110                 break;
 111         case SMB2_FIND_FULL_DIRECTORY_INFO:
 112                 smb_level = RAW_SEARCH_DATA_FULL_DIRECTORY_INFO;
 113                 break;
 114         case SMB2_FIND_BOTH_DIRECTORY_INFO:
 115                 smb_level = RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO;
 116                 break;
 117         case SMB2_FIND_NAME_INFO:
 118                 smb_level = RAW_SEARCH_DATA_NAME_INFO;
 119                 break;
 120         case SMB2_FIND_ID_FULL_DIRECTORY_INFO:
 121                 smb_level = RAW_SEARCH_DATA_ID_FULL_DIRECTORY_INFO;
 122                 break;
 123         case SMB2_FIND_ID_BOTH_DIRECTORY_INFO:
 124                 smb_level = RAW_SEARCH_DATA_ID_BOTH_DIRECTORY_INFO;
 125                 break;
 126         default:
 127                 return NT_STATUS_INVALID_INFO_CLASS;
 128         }
 129 
 130         status = smb2_find_recv(req, mem_ctx, &f);
 131         NT_STATUS_NOT_OK_RETURN(status);
 132         
 133         b = f.out.blob;
 134         *io = NULL;
 135         *count = 0;
 136 
 137         do {
 138                 union smb_search_data *io2;
 139 
 140                 io2 = talloc_realloc(mem_ctx, *io, union smb_search_data, (*count)+1);
 141                 if (io2 == NULL) {
 142                         data_blob_free(&f.out.blob);
 143                         talloc_free(*io);
 144                         return NT_STATUS_NO_MEMORY;
 145                 }
 146                 *io = io2;
 147 
 148                 status = smb_raw_search_common(*io, smb_level, &b, (*io) + (*count), 
 149                                                &next_ofs, STR_UNICODE);
 150 
 151                 if (NT_STATUS_IS_OK(status) &&
 152                     next_ofs >= b.length) {
 153                         data_blob_free(&f.out.blob);
 154                         talloc_free(*io);
 155                         return NT_STATUS_INFO_LENGTH_MISMATCH;                  
 156                 }
 157 
 158                 (*count)++;
 159 
 160                 b = data_blob_const(b.data+next_ofs, b.length - next_ofs);
 161         } while (NT_STATUS_IS_OK(status) && next_ofs != 0);
 162 
 163         data_blob_free(&f.out.blob);
 164         
 165         return NT_STATUS_OK;
 166 }
 167 
 168 /*
 169   a varient of smb2_find that parses the resulting blob into
 170   smb_search_data structures
 171 */
 172 NTSTATUS smb2_find_level(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
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 173                          struct smb2_find *f, 
 174                          uint_t *count, union smb_search_data **io)
 175 {
 176         struct smb2_request *req;
 177 
 178         req = smb2_find_send(tree, f);
 179         return smb2_find_level_recv(req, mem_ctx, f->in.level, count, io);
 180 }

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