r25026: Move param/param.h out of includes.h
[kai/samba-autobuild/.git] / source4 / libcli / raw / rawnegotiate.c
1 /* 
2    Unix SMB/CIFS implementation.
3
4    SMB client negotiate context management functions
5
6    Copyright (C) Andrew Tridgell 1994-2005
7    Copyright (C) James Myers 2003 <myersjj@samba.org>
8    
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.
13    
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.
18    
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/>.
21 */
22
23 #include "includes.h"
24 #include "libcli/raw/libcliraw.h"
25 #include "system/time.h"
26 #include "param/param.h"
27
28 static const struct {
29         enum protocol_types prot;
30         const char *name;
31 } prots[] = {
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"},
43 };
44
45 /*
46   Send a negprot command.
47 */
48 struct smbcli_request *smb_raw_negotiate_send(struct smbcli_transport *transport, 
49                                               int maxprotocol)
50 {
51         struct smbcli_request *req;
52         int i;
53         uint16_t flags2 = 0;
54
55         req = smbcli_request_setup_transport(transport, SMBnegprot, 0, 0);
56         if (!req) {
57                 return NULL;
58         }
59
60         flags2 |= FLAGS2_32_BIT_ERROR_CODES;
61         if (lp_unicode()) {
62                 flags2 |= FLAGS2_UNICODE_STRINGS;
63         }
64         flags2 |= FLAGS2_EXTENDED_ATTRIBUTES;
65         flags2 |= FLAGS2_LONG_PATH_COMPONENTS;
66         flags2 |= FLAGS2_IS_LONG_NAME;
67
68         if (transport->options.use_spnego) {
69                 flags2 |= FLAGS2_EXTENDED_SECURITY;
70         }
71
72         SSVAL(req->out.hdr,HDR_FLG2, flags2);
73
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);
78         }
79
80         if (!smbcli_request_send(req)) {
81                 smbcli_request_destroy(req);
82                 return NULL;
83         }
84
85         return req;
86 }
87
88 /*
89  Send a negprot command.
90 */
91 NTSTATUS smb_raw_negotiate_recv(struct smbcli_request *req)
92 {
93         struct smbcli_transport *transport = req->transport;
94         int protocol;
95
96         if (!smbcli_request_receive(req) ||
97             smbcli_request_is_error(req)) {
98                 return smbcli_request_destroy(req);
99         }
100
101         SMBCLI_CHECK_MIN_WCT(req, 1);
102
103         protocol = SVALS(req->in.vwv, VWV(0));
104
105         if (protocol >= ARRAY_SIZE(prots) || protocol < 0) {
106                 req->status = NT_STATUS_UNSUCCESSFUL;
107                 return smbcli_request_destroy(req);
108         }
109
110         transport->negotiate.protocol = prots[protocol].prot;
111
112         if (transport->negotiate.protocol >= PROTOCOL_NT1) {
113                 NTTIME ntt;
114
115                 /* NT protocol */
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);
122
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);
128
129                 if (transport->negotiate.capabilities & CAP_EXTENDED_SECURITY) {
130                         if (req->in.data_size < 16) {
131                                 goto failed;
132                         }
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);
135                 } else {
136                         if (req->in.data_size < (transport->negotiate.key_len)) {
137                                 goto failed;
138                         }
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 */
144                 }
145
146                 if (transport->negotiate.capabilities & CAP_RAW_MODE) {
147                         transport->negotiate.readbraw_supported = True;
148                         transport->negotiate.writebraw_supported = True;
149                 }
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;
156                 
157                 /* this time is converted to GMT by raw_pull_dos_date */
158                 transport->negotiate.server_time = raw_pull_dos_date(transport,
159                                                                      req->in.vwv+VWV(8));
160                 if ((SVAL(req->in.vwv,VWV(5)) & 0x1)) {
161                         transport->negotiate.readbraw_supported = 1;
162                 }
163                 if ((SVAL(req->in.vwv,VWV(5)) & 0x2)) {
164                         transport->negotiate.writebraw_supported = 1;
165                 }
166                 transport->negotiate.secblob = smbcli_req_pull_blob(req, transport, 
167                                                                  req->in.data, req->in.data_size);
168         } else {
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);
174         }
175
176         /* a way to force ascii SMB */
177         if (!lp_unicode()) {
178                 transport->negotiate.capabilities &= ~CAP_UNICODE;
179         }
180
181         if (!lp_nt_status_support()) {
182                 transport->negotiate.capabilities &= ~CAP_STATUS32;
183         }
184
185 failed:
186         return smbcli_request_destroy(req);
187 }
188
189
190 /*
191  Send a negprot command (sync interface)
192 */
193 NTSTATUS smb_raw_negotiate(struct smbcli_transport *transport, int maxprotocol)
194 {
195         struct smbcli_request *req = smb_raw_negotiate_send(transport, maxprotocol);
196         return smb_raw_negotiate_recv(req);
197 }