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 "system/time.h"
26 #include "param/param.h"
29 enum protocol_types prot;
32 {PROTOCOL_CORE,"PC NETWORK PROGRAM 1.0"},
33 {PROTOCOL_COREPLUS,"MICROSOFT NETWORKS 1.03"},
34 {PROTOCOL_LANMAN1,"MICROSOFT NETWORKS 3.0"},
35 {PROTOCOL_LANMAN1,"LANMAN1.0"},
36 {PROTOCOL_LANMAN1,"Windows for Workgroups 3.1a"},
37 {PROTOCOL_LANMAN2,"LM1.2X002"},
38 {PROTOCOL_LANMAN2,"DOS LANMAN2.1"},
39 {PROTOCOL_LANMAN2,"LANMAN2.1"},
40 {PROTOCOL_LANMAN2,"Samba"},
41 {PROTOCOL_NT1,"NT LANMAN 1.0"},
42 {PROTOCOL_NT1,"NT LM 0.12"},
46 Send a negprot command.
48 struct smbcli_request *smb_raw_negotiate_send(struct smbcli_transport *transport,
51 struct smbcli_request *req;
55 req = smbcli_request_setup_transport(transport, SMBnegprot, 0, 0);
60 flags2 |= FLAGS2_32_BIT_ERROR_CODES;
61 if (lp_unicode(global_loadparm)) {
62 flags2 |= FLAGS2_UNICODE_STRINGS;
64 flags2 |= FLAGS2_EXTENDED_ATTRIBUTES;
65 flags2 |= FLAGS2_LONG_PATH_COMPONENTS;
66 flags2 |= FLAGS2_IS_LONG_NAME;
68 if (transport->options.use_spnego) {
69 flags2 |= FLAGS2_EXTENDED_SECURITY;
72 SSVAL(req->out.hdr,HDR_FLG2, flags2);
74 /* setup the protocol strings */
75 for (i=0; i < ARRAY_SIZE(prots) && prots[i].prot <= maxprotocol; i++) {
76 smbcli_req_append_bytes(req, (const uint8_t *)"\2", 1);
77 smbcli_req_append_string(req, prots[i].name, STR_TERMINATE | STR_ASCII);
80 if (!smbcli_request_send(req)) {
81 smbcli_request_destroy(req);
89 Send a negprot command.
91 NTSTATUS smb_raw_negotiate_recv(struct smbcli_request *req)
93 struct smbcli_transport *transport = req->transport;
96 if (!smbcli_request_receive(req) ||
97 smbcli_request_is_error(req)) {
98 return smbcli_request_destroy(req);
101 SMBCLI_CHECK_MIN_WCT(req, 1);
103 protocol = SVALS(req->in.vwv, VWV(0));
105 if (protocol >= ARRAY_SIZE(prots) || protocol < 0) {
106 req->status = NT_STATUS_UNSUCCESSFUL;
107 return smbcli_request_destroy(req);
110 transport->negotiate.protocol = prots[protocol].prot;
112 if (transport->negotiate.protocol >= PROTOCOL_NT1) {
116 SMBCLI_CHECK_WCT(req, 17);
117 transport->negotiate.sec_mode = CVAL(req->in.vwv,VWV(1));
118 transport->negotiate.max_mux = SVAL(req->in.vwv,VWV(1)+1);
119 transport->negotiate.max_xmit = IVAL(req->in.vwv,VWV(3)+1);
120 transport->negotiate.sesskey = IVAL(req->in.vwv,VWV(7)+1);
121 transport->negotiate.capabilities = IVAL(req->in.vwv,VWV(9)+1);
123 /* this time arrives in real GMT */
124 ntt = smbcli_pull_nttime(req->in.vwv, VWV(11)+1);
125 transport->negotiate.server_time = nt_time_to_unix(ntt);
126 transport->negotiate.server_zone = SVALS(req->in.vwv,VWV(15)+1) * 60;
127 transport->negotiate.key_len = CVAL(req->in.vwv,VWV(16)+1);
129 if (transport->negotiate.capabilities & CAP_EXTENDED_SECURITY) {
130 if (req->in.data_size < 16) {
133 transport->negotiate.server_guid = smbcli_req_pull_blob(req, transport, req->in.data, 16);
134 transport->negotiate.secblob = smbcli_req_pull_blob(req, transport, req->in.data + 16, req->in.data_size - 16);
136 if (req->in.data_size < (transport->negotiate.key_len)) {
139 transport->negotiate.secblob = smbcli_req_pull_blob(req, transport, req->in.data, transport->negotiate.key_len);
140 smbcli_req_pull_string(req, transport, &transport->negotiate.server_domain,
141 req->in.data+transport->negotiate.key_len,
142 req->in.data_size-transport->negotiate.key_len, STR_UNICODE|STR_NOALIGN);
143 /* here comes the server name */
146 if (transport->negotiate.capabilities & CAP_RAW_MODE) {
147 transport->negotiate.readbraw_supported = True;
148 transport->negotiate.writebraw_supported = True;
150 } else if (transport->negotiate.protocol >= PROTOCOL_LANMAN1) {
151 SMBCLI_CHECK_WCT(req, 13);
152 transport->negotiate.sec_mode = SVAL(req->in.vwv,VWV(1));
153 transport->negotiate.max_xmit = SVAL(req->in.vwv,VWV(2));
154 transport->negotiate.sesskey = IVAL(req->in.vwv,VWV(6));
155 transport->negotiate.server_zone = SVALS(req->in.vwv,VWV(10)) * 60;
157 /* this time is converted to GMT by raw_pull_dos_date */
158 transport->negotiate.server_time = raw_pull_dos_date(transport,
160 if ((SVAL(req->in.vwv,VWV(5)) & 0x1)) {
161 transport->negotiate.readbraw_supported = 1;
163 if ((SVAL(req->in.vwv,VWV(5)) & 0x2)) {
164 transport->negotiate.writebraw_supported = 1;
166 transport->negotiate.secblob = smbcli_req_pull_blob(req, transport,
167 req->in.data, req->in.data_size);
169 /* the old core protocol */
170 transport->negotiate.sec_mode = 0;
171 transport->negotiate.server_time = time(NULL);
172 transport->negotiate.max_xmit = transport->options.max_xmit;
173 transport->negotiate.server_zone = get_time_zone(transport->negotiate.server_time);
176 /* a way to force ascii SMB */
177 if (!lp_unicode(global_loadparm)) {
178 transport->negotiate.capabilities &= ~CAP_UNICODE;
181 if (!lp_nt_status_support(global_loadparm)) {
182 transport->negotiate.capabilities &= ~CAP_STATUS32;
186 return smbcli_request_destroy(req);
191 Send a negprot command (sync interface)
193 NTSTATUS smb_raw_negotiate(struct smbcli_transport *transport, int maxprotocol)
195 struct smbcli_request *req = smb_raw_negotiate_send(transport, maxprotocol);
196 return smb_raw_negotiate_recv(req);