2 Unix SMB/CIFS implementation.
4 SMB client negotiate context management functions
6 Copyright (C) Andrew Tridgell 1994-2005
7 Copyright (C) James Myers 2003 <myersjj@samba.org>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "libcli/raw/libcliraw.h"
25 #include "libcli/raw/raw_proto.h"
26 #include "system/time.h"
27 #include "param/param.h"
30 enum protocol_types prot;
33 {PROTOCOL_CORE,"PC NETWORK PROGRAM 1.0"},
34 {PROTOCOL_COREPLUS,"MICROSOFT NETWORKS 1.03"},
35 {PROTOCOL_LANMAN1,"MICROSOFT NETWORKS 3.0"},
36 {PROTOCOL_LANMAN1,"LANMAN1.0"},
37 {PROTOCOL_LANMAN1,"Windows for Workgroups 3.1a"},
38 {PROTOCOL_LANMAN2,"LM1.2X002"},
39 {PROTOCOL_LANMAN2,"DOS LANMAN2.1"},
40 {PROTOCOL_LANMAN2,"LANMAN2.1"},
41 {PROTOCOL_LANMAN2,"Samba"},
42 {PROTOCOL_NT1,"NT LANMAN 1.0"},
43 {PROTOCOL_NT1,"NT LM 0.12"},
45 /* we don't yet handle chaining a SMB transport onto SMB2 */
46 {PROTOCOL_SMB2,"SMB 2.002"},
51 Send a negprot command.
53 struct smbcli_request *smb_raw_negotiate_send(struct smbcli_transport *transport,
57 struct smbcli_request *req;
61 req = smbcli_request_setup_transport(transport, SMBnegprot, 0, 0);
66 flags2 |= FLAGS2_32_BIT_ERROR_CODES;
68 flags2 |= FLAGS2_UNICODE_STRINGS;
70 flags2 |= FLAGS2_EXTENDED_ATTRIBUTES;
71 flags2 |= FLAGS2_LONG_PATH_COMPONENTS;
72 flags2 |= FLAGS2_IS_LONG_NAME;
74 if (transport->options.use_spnego) {
75 flags2 |= FLAGS2_EXTENDED_SECURITY;
78 SSVAL(req->out.hdr,HDR_FLG2, flags2);
80 /* setup the protocol strings */
81 for (i=0; i < ARRAY_SIZE(prots) && prots[i].prot <= maxprotocol; i++) {
82 smbcli_req_append_bytes(req, (const uint8_t *)"\2", 1);
83 smbcli_req_append_string(req, prots[i].name, STR_TERMINATE | STR_ASCII);
86 if (!smbcli_request_send(req)) {
87 smbcli_request_destroy(req);
95 Send a negprot command.
97 NTSTATUS smb_raw_negotiate_recv(struct smbcli_request *req)
99 struct smbcli_transport *transport = req->transport;
102 if (!smbcli_request_receive(req) ||
103 smbcli_request_is_error(req)) {
104 return smbcli_request_destroy(req);
107 SMBCLI_CHECK_MIN_WCT(req, 1);
109 protocol = SVALS(req->in.vwv, VWV(0));
111 if (protocol >= ARRAY_SIZE(prots) || protocol < 0) {
112 req->status = NT_STATUS_UNSUCCESSFUL;
113 return smbcli_request_destroy(req);
116 transport->negotiate.protocol = prots[protocol].prot;
118 if (transport->negotiate.protocol >= PROTOCOL_NT1) {
122 SMBCLI_CHECK_WCT(req, 17);
123 transport->negotiate.sec_mode = CVAL(req->in.vwv,VWV(1));
124 transport->negotiate.max_mux = SVAL(req->in.vwv,VWV(1)+1);
125 transport->negotiate.max_xmit = IVAL(req->in.vwv,VWV(3)+1);
126 transport->negotiate.sesskey = IVAL(req->in.vwv,VWV(7)+1);
127 transport->negotiate.capabilities = IVAL(req->in.vwv,VWV(9)+1);
129 /* this time arrives in real GMT */
130 ntt = smbcli_pull_nttime(req->in.vwv, VWV(11)+1);
131 transport->negotiate.server_time = nt_time_to_unix(ntt);
132 transport->negotiate.server_zone = SVALS(req->in.vwv,VWV(15)+1) * 60;
133 transport->negotiate.key_len = CVAL(req->in.vwv,VWV(16)+1);
135 if (transport->negotiate.capabilities & CAP_EXTENDED_SECURITY) {
136 if (req->in.data_size < 16) {
139 transport->negotiate.server_guid = smbcli_req_pull_blob(&req->in.bufinfo, transport, req->in.data, 16);
140 transport->negotiate.secblob = smbcli_req_pull_blob(&req->in.bufinfo, transport, req->in.data + 16, req->in.data_size - 16);
142 if (req->in.data_size < (transport->negotiate.key_len)) {
145 transport->negotiate.secblob = smbcli_req_pull_blob(&req->in.bufinfo, transport, req->in.data, transport->negotiate.key_len);
146 smbcli_req_pull_string(&req->in.bufinfo, transport, &transport->negotiate.server_domain,
147 req->in.data+transport->negotiate.key_len,
148 req->in.data_size-transport->negotiate.key_len, STR_UNICODE|STR_NOALIGN);
149 /* here comes the server name */
152 if (transport->negotiate.capabilities & CAP_RAW_MODE) {
153 transport->negotiate.readbraw_supported = true;
154 transport->negotiate.writebraw_supported = true;
156 } else if (transport->negotiate.protocol >= PROTOCOL_LANMAN1) {
157 SMBCLI_CHECK_WCT(req, 13);
158 transport->negotiate.sec_mode = SVAL(req->in.vwv,VWV(1));
159 transport->negotiate.max_xmit = SVAL(req->in.vwv,VWV(2));
160 transport->negotiate.sesskey = IVAL(req->in.vwv,VWV(6));
161 transport->negotiate.server_zone = SVALS(req->in.vwv,VWV(10)) * 60;
163 /* this time is converted to GMT by raw_pull_dos_date */
164 transport->negotiate.server_time = raw_pull_dos_date(transport,
166 if ((SVAL(req->in.vwv,VWV(5)) & 0x1)) {
167 transport->negotiate.readbraw_supported = 1;
169 if ((SVAL(req->in.vwv,VWV(5)) & 0x2)) {
170 transport->negotiate.writebraw_supported = 1;
172 transport->negotiate.secblob = smbcli_req_pull_blob(&req->in.bufinfo, transport,
173 req->in.data, req->in.data_size);
175 /* the old core protocol */
176 transport->negotiate.sec_mode = 0;
177 transport->negotiate.server_time = time(NULL);
178 transport->negotiate.max_xmit = transport->options.max_xmit;
179 transport->negotiate.server_zone = get_time_zone(transport->negotiate.server_time);
182 /* a way to force ascii SMB */
183 if (!transport->options.unicode) {
184 transport->negotiate.capabilities &= ~CAP_UNICODE;
187 if (!transport->options.ntstatus_support) {
188 transport->negotiate.capabilities &= ~CAP_STATUS32;
191 if (!transport->options.use_level2_oplocks) {
192 transport->negotiate.capabilities &= ~CAP_LEVEL_II_OPLOCKS;
196 return smbcli_request_destroy(req);
201 Send a negprot command (sync interface)
203 NTSTATUS smb_raw_negotiate(struct smbcli_transport *transport, bool unicode, int maxprotocol)
205 struct smbcli_request *req = smb_raw_negotiate_send(transport, unicode, maxprotocol);
206 return smb_raw_negotiate_recv(req);