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