2 Unix SMB/CIFS implementation.
4 SMB2 client tree handling
6 Copyright (C) Andrew Tridgell 2005
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.
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.
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/>.
23 #include "libcli/raw/libcliraw.h"
24 #include "libcli/smb2/smb2.h"
25 #include "libcli/smb2/smb2_calls.h"
28 add a blob to a smb2_create attribute blob
30 NTSTATUS smb2_create_blob_add(TALLOC_CTX *mem_ctx, DATA_BLOB *blob,
32 DATA_BLOB add, bool last)
34 uint32_t ofs = blob->length;
35 size_t tag_length = strlen(tag);
36 uint8_t pad = smb2_padding_size(add.length+tag_length, 8);
37 if (!data_blob_realloc(mem_ctx, blob,
38 blob->length + 0x14 + tag_length + add.length + pad))
39 return NT_STATUS_NO_MEMORY;
42 SIVAL(blob->data, ofs+0x00, 0);
44 SIVAL(blob->data, ofs+0x00, 0x14 + tag_length + add.length + pad);
46 SSVAL(blob->data, ofs+0x04, 0x10); /* offset of tag */
47 SIVAL(blob->data, ofs+0x06, tag_length); /* tag length */
48 SSVAL(blob->data, ofs+0x0A, 0x14 + tag_length); /* offset of data */
49 SIVAL(blob->data, ofs+0x0C, add.length);
50 memcpy(blob->data+ofs+0x10, tag, tag_length);
51 SIVAL(blob->data, ofs+0x10+tag_length, 0); /* pad? */
52 memcpy(blob->data+ofs+0x14+tag_length, add.data, add.length);
53 memset(blob->data+ofs+0x14+tag_length+add.length, 0, pad);
61 struct smb2_request *smb2_create_send(struct smb2_tree *tree, struct smb2_create *io)
63 struct smb2_request *req;
65 DATA_BLOB blob = data_blob(NULL, 0);
67 req = smb2_request_init_tree(tree, SMB2_OP_CREATE, 0x38, true, 0);
68 if (req == NULL) return NULL;
70 SCVAL(req->out.body, 0x02, io->in.security_flags);
71 SCVAL(req->out.body, 0x03, io->in.oplock_level);
72 SIVAL(req->out.body, 0x04, io->in.impersonation_level);
73 SBVAL(req->out.body, 0x08, io->in.create_flags);
74 SBVAL(req->out.body, 0x10, io->in.reserved);
75 SIVAL(req->out.body, 0x18, io->in.desired_access);
76 SIVAL(req->out.body, 0x1C, io->in.file_attributes);
77 SIVAL(req->out.body, 0x20, io->in.share_access);
78 SIVAL(req->out.body, 0x24, io->in.create_disposition);
79 SIVAL(req->out.body, 0x28, io->in.create_options);
81 status = smb2_push_o16s16_string(&req->out, 0x2C, io->in.fname);
82 if (!NT_STATUS_IS_OK(status)) {
87 if (io->in.eas.num_eas != 0) {
88 DATA_BLOB b = data_blob_talloc(req, NULL,
89 ea_list_size_chained(io->in.eas.num_eas, io->in.eas.eas));
90 ea_put_list_chained(b.data, io->in.eas.num_eas, io->in.eas.eas);
91 status = smb2_create_blob_add(req, &blob, SMB2_CREATE_TAG_EXTA, b, false);
92 if (!NT_STATUS_IS_OK(status)) {
99 /* an empty MxAc tag seems to be used to ask the server to
100 return the maximum access mask allowed on the file */
101 status = smb2_create_blob_add(req, &blob, SMB2_CREATE_TAG_MXAC,
102 data_blob(NULL, 0), true);
104 if (!NT_STATUS_IS_OK(status)) {
108 status = smb2_push_o32s32_blob(&req->out, 0x30, blob);
109 if (!NT_STATUS_IS_OK(status)) {
114 smb2_transport_send(req);
123 NTSTATUS smb2_create_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx, struct smb2_create *io)
127 if (!smb2_request_receive(req) ||
128 !smb2_request_is_ok(req)) {
129 return smb2_request_destroy(req);
132 SMB2_CHECK_PACKET_RECV(req, 0x58, true);
134 io->out.oplock_level = CVAL(req->in.body, 0x02);
135 io->out.reserved = CVAL(req->in.body, 0x03);
136 io->out.create_action = IVAL(req->in.body, 0x04);
137 io->out.create_time = smbcli_pull_nttime(req->in.body, 0x08);
138 io->out.access_time = smbcli_pull_nttime(req->in.body, 0x10);
139 io->out.write_time = smbcli_pull_nttime(req->in.body, 0x18);
140 io->out.change_time = smbcli_pull_nttime(req->in.body, 0x20);
141 io->out.alloc_size = BVAL(req->in.body, 0x28);
142 io->out.size = BVAL(req->in.body, 0x30);
143 io->out.file_attr = IVAL(req->in.body, 0x38);
144 io->out.reserved2 = IVAL(req->in.body, 0x3C);
145 smb2_pull_handle(req->in.body+0x40, &io->out.file.handle);
146 status = smb2_pull_o32s32_blob(&req->in, mem_ctx, req->in.body+0x50, &io->out.blob);
147 if (!NT_STATUS_IS_OK(status)) {
148 smb2_request_destroy(req);
152 return smb2_request_destroy(req);
158 NTSTATUS smb2_create(struct smb2_tree *tree, TALLOC_CTX *mem_ctx, struct smb2_create *io)
160 struct smb2_request *req = smb2_create_send(tree, io);
161 return smb2_create_recv(req, mem_ctx, io);