2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 2003
5 Copyright (c) Stefan Metzmacher 2006
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 This file handles the parsing of transact2 requests
26 #include "libcli/smb2/smb2.h"
27 #include "libcli/smb2/smb2_calls.h"
28 #include "smb_server/smb_server.h"
29 #include "smb_server/service_smb_proto.h"
30 #include "smb_server/smb2/smb2_server.h"
31 #include "ntvfs/ntvfs.h"
34 /* a structure to encapsulate the state information about an in-progress ffirst/fnext operation */
35 struct smb2srv_find_state
{
36 struct smb2srv_request
*req
;
37 struct smb2_find
*info
;
38 union smb_search_first
*ff
;
39 union smb_search_next
*fn
;
40 uint32_t last_entry_offset
;
43 /* callback function for SMB2 Find */
44 static BOOL
smb2srv_find_callback(void *private, union smb_search_data
*file
)
46 struct smb2srv_find_state
*state
= talloc_get_type(private, struct smb2srv_find_state
);
47 struct smb2_find
*info
= state
->info
;
51 old_length
= info
->out
.blob
.length
;
53 status
= smbsrv_push_passthru_search(state
, &info
->out
.blob
, info
->data_level
, file
, STR_UNICODE
);
54 if (!NT_STATUS_IS_OK(status
) ||
55 info
->out
.blob
.length
> info
->in
.max_response_size
) {
56 /* restore the old length and tell the backend to stop */
57 smbsrv_blob_grow_data(state
, &info
->out
.blob
, old_length
);
61 state
->last_entry_offset
= old_length
;
66 static void smb2srv_find_send(struct ntvfs_request
*ntvfs
)
68 struct smb2srv_request
*req
;
69 struct smb2srv_find_state
*state
;
71 SMB2SRV_CHECK_ASYNC_STATUS(state
, struct smb2srv_find_state
);
72 SMB2SRV_CHECK(smb2srv_setup_reply(req
, 0x08, True
, state
->info
->out
.blob
.length
));
74 if (state
->info
->out
.blob
.length
> 0) {
75 SIVAL(state
->info
->out
.blob
.data
+ state
->last_entry_offset
, 0, 0);
78 SMB2SRV_CHECK(smb2_push_o16s32_blob(&req
->out
, 0x02, state
->info
->out
.blob
));
80 smb2srv_send_reply(req
);
83 static NTSTATUS
smb2srv_find_backend(struct smb2srv_find_state
*state
)
85 struct smb2_find
*info
= state
->info
;
87 switch (info
->in
.level
) {
88 case SMB2_FIND_DIRECTORY_INFO
:
89 info
->data_level
= RAW_SEARCH_DATA_DIRECTORY_INFO
;
92 case SMB2_FIND_FULL_DIRECTORY_INFO
:
93 info
->data_level
= RAW_SEARCH_DATA_FULL_DIRECTORY_INFO
;
96 case SMB2_FIND_BOTH_DIRECTORY_INFO
:
97 info
->data_level
= RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO
;
100 case SMB2_FIND_NAME_INFO
:
101 info
->data_level
= RAW_SEARCH_DATA_NAME_INFO
;
104 case SMB2_FIND_ID_BOTH_DIRECTORY_INFO
:
105 info
->data_level
= RAW_SEARCH_DATA_ID_BOTH_DIRECTORY_INFO
;
108 case SMB2_FIND_ID_FULL_DIRECTORY_INFO
:
109 info
->data_level
= RAW_SEARCH_DATA_ID_FULL_DIRECTORY_INFO
;
113 return NT_STATUS_FOOBAR
;
116 if (info
->in
.continue_flags
& SMB2_CONTINUE_FLAG_NEW
) {
117 state
->ff
= talloc(state
, union smb_search_first
);
118 NT_STATUS_HAVE_NO_MEMORY(state
->ff
);
120 state
->ff
->smb2
= *info
;
121 state
->info
= &state
->ff
->smb2
;
122 ZERO_STRUCT(state
->ff
->smb2
.out
);
124 return ntvfs_search_first(state
->req
->ntvfs
, state
->ff
, state
, smb2srv_find_callback
);
126 state
->fn
= talloc(state
, union smb_search_next
);
127 NT_STATUS_HAVE_NO_MEMORY(state
->fn
);
129 state
->fn
->smb2
= *info
;
130 state
->info
= &state
->fn
->smb2
;
131 ZERO_STRUCT(state
->fn
->smb2
.out
);
133 return ntvfs_search_next(state
->req
->ntvfs
, state
->fn
, state
, smb2srv_find_callback
);
136 /* should not be reached */
137 return NT_STATUS_INTERNAL_ERROR
;
140 void smb2srv_find_recv(struct smb2srv_request
*req
)
142 struct smb2srv_find_state
*state
;
143 struct smb2_find
*info
;
145 SMB2SRV_CHECK_BODY_SIZE(req
, 0x20, True
);
146 SMB2SRV_TALLOC_IO_PTR(info
, struct smb2_find
);
147 /* this overwrites req->io_ptr !*/
148 SMB2SRV_TALLOC_IO_PTR(state
, struct smb2srv_find_state
);
153 state
->last_entry_offset
= 0;
154 SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_find_send
, NTVFS_ASYNC_STATE_MAY_ASYNC
);
156 info
->level
= RAW_SEARCH_SMB2
;
157 info
->data_level
= RAW_SEARCH_DATA_GENERIC
;/* will be overwritten later */
158 info
->in
.level
= CVAL(req
->in
.body
, 0x02);
159 info
->in
.continue_flags
= CVAL(req
->in
.body
, 0x03);
160 info
->in
.unknown
= IVAL(req
->in
.body
, 0x04);
161 info
->in
.file
.ntvfs
= smb2srv_pull_handle(req
, req
->in
.body
, 0x08);
162 SMB2SRV_CHECK(smb2_pull_o16s16_string(&req
->in
, info
, req
->in
.body
+0x18, &info
->in
.pattern
));
163 info
->in
.max_response_size
= IVAL(req
->in
.body
, 0x1C);
165 SMB2SRV_CHECK_FILE_HANDLE(info
->in
.file
.ntvfs
);
166 SMB2SRV_CALL_NTVFS_BACKEND(smb2srv_find_backend(state
));