mirror of
https://github.com/samba-team/samba.git
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950f0b47d9
Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
182 lines
4.5 KiB
C
182 lines
4.5 KiB
C
/*
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Unix SMB/CIFS implementation.
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SMB2 client find calls
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Copyright (C) Andrew Tridgell 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "libcli/raw/libcliraw.h"
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#include "libcli/raw/raw_proto.h"
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#include "libcli/smb2/smb2.h"
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#include "libcli/smb2/smb2_calls.h"
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/*
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send a find request
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*/
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struct smb2_request *smb2_find_send(struct smb2_tree *tree, struct smb2_find *io)
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{
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struct smb2_request *req;
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NTSTATUS status;
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req = smb2_request_init_tree(tree, SMB2_OP_QUERY_DIRECTORY, 0x20, true, 0);
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if (req == NULL) return NULL;
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req->credit_charge = (MAX(io->in.max_response_size, 1) - 1)/ 65536 + 1;
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SCVAL(req->out.body, 0x02, io->in.level);
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SCVAL(req->out.body, 0x03, io->in.continue_flags);
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SIVAL(req->out.body, 0x04, io->in.file_index);
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smb2_push_handle(req->out.body+0x08, &io->in.file.handle);
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status = smb2_push_o16s16_string(&req->out, 0x18, io->in.pattern);
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if (!NT_STATUS_IS_OK(status)) {
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talloc_free(req);
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return NULL;
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}
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SIVAL(req->out.body, 0x1C, io->in.max_response_size);
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smb2_transport_send(req);
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return req;
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}
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/*
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recv a find reply
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*/
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NTSTATUS smb2_find_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
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struct smb2_find *io)
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{
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NTSTATUS status;
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if (!smb2_request_receive(req) ||
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smb2_request_is_error(req)) {
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return smb2_request_destroy(req);
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}
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SMB2_CHECK_PACKET_RECV(req, 0x08, true);
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status = smb2_pull_o16s32_blob(&req->in, mem_ctx,
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req->in.body+0x02, &io->out.blob);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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return smb2_request_destroy(req);
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}
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/*
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sync find request
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*/
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NTSTATUS smb2_find(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
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struct smb2_find *io)
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{
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struct smb2_request *req = smb2_find_send(tree, io);
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return smb2_find_recv(req, mem_ctx, io);
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}
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/*
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a variant of smb2_find_recv that parses the resulting blob into
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smb_search_data structures
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*/
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NTSTATUS smb2_find_level_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
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uint8_t level, unsigned int *count,
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union smb_search_data **io)
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{
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struct smb2_find f;
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NTSTATUS status;
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DATA_BLOB b;
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enum smb_search_data_level smb_level;
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unsigned int next_ofs=0;
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switch (level) {
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case SMB2_FIND_DIRECTORY_INFO:
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smb_level = RAW_SEARCH_DATA_DIRECTORY_INFO;
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break;
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case SMB2_FIND_FULL_DIRECTORY_INFO:
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smb_level = RAW_SEARCH_DATA_FULL_DIRECTORY_INFO;
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break;
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case SMB2_FIND_BOTH_DIRECTORY_INFO:
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smb_level = RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO;
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break;
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case SMB2_FIND_NAME_INFO:
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smb_level = RAW_SEARCH_DATA_NAME_INFO;
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break;
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case SMB2_FIND_ID_FULL_DIRECTORY_INFO:
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smb_level = RAW_SEARCH_DATA_ID_FULL_DIRECTORY_INFO;
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break;
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case SMB2_FIND_ID_BOTH_DIRECTORY_INFO:
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smb_level = RAW_SEARCH_DATA_ID_BOTH_DIRECTORY_INFO;
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break;
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default:
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return NT_STATUS_INVALID_INFO_CLASS;
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}
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status = smb2_find_recv(req, mem_ctx, &f);
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NT_STATUS_NOT_OK_RETURN(status);
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b = f.out.blob;
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*io = NULL;
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*count = 0;
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do {
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union smb_search_data *io2;
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io2 = talloc_realloc(mem_ctx, *io, union smb_search_data, (*count)+1);
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if (io2 == NULL) {
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data_blob_free(&f.out.blob);
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talloc_free(*io);
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return NT_STATUS_NO_MEMORY;
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}
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*io = io2;
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status = smb_raw_search_common(*io, smb_level, &b, (*io) + (*count),
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&next_ofs, STR_UNICODE);
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if (NT_STATUS_IS_OK(status) &&
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next_ofs >= b.length) {
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data_blob_free(&f.out.blob);
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talloc_free(*io);
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return NT_STATUS_INFO_LENGTH_MISMATCH;
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}
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(*count)++;
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b = data_blob_const(b.data+next_ofs, b.length - next_ofs);
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} while (NT_STATUS_IS_OK(status) && next_ofs != 0);
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data_blob_free(&f.out.blob);
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return NT_STATUS_OK;
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}
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/*
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a variant of smb2_find that parses the resulting blob into
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smb_search_data structures
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*/
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NTSTATUS smb2_find_level(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
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struct smb2_find *f,
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unsigned int *count, union smb_search_data **io)
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{
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struct smb2_request *req;
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req = smb2_find_send(tree, f);
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return smb2_find_level_recv(req, mem_ctx, f->in.level, count, io);
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}
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