2 Unix SMB2 implementation.
4 Copyright (C) Andrew Bartlett 2001-2005
5 Copyright (C) Stefan Metzmacher 2005
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.
23 #include "auth/auth.h"
24 #include "libcli/smb2/smb2.h"
25 #include "libcli/smb2/smb2_calls.h"
26 #include "smb_server/smb_server.h"
27 #include "smb_server/smb2/smb2_server.h"
28 #include "smbd/service_stream.h"
30 static NTSTATUS smb2srv_negprot_secblob(struct smb2srv_request *req, DATA_BLOB *_blob)
32 struct gensec_security *gensec_security;
33 DATA_BLOB null_data_blob = data_blob(NULL, 0);
36 struct cli_credentials *server_credentials;
38 nt_status = gensec_server_start(req, &gensec_security,
39 req->smb_conn->connection->event.ctx);
40 if (!NT_STATUS_IS_OK(nt_status)) {
41 DEBUG(0, ("Failed to start GENSEC: %s\n", nt_errstr(nt_status)));
42 smbsrv_terminate_connection(req->smb_conn, "Failed to start GENSEC\n");
46 server_credentials = cli_credentials_init(req);
47 if (!server_credentials) {
48 smbsrv_terminate_connection(req->smb_conn, "Failed to init server credentials\n");
49 return NT_STATUS_NO_MEMORY;
52 cli_credentials_set_conf(server_credentials);
53 nt_status = cli_credentials_set_machine_account(server_credentials);
54 if (!NT_STATUS_IS_OK(nt_status)) {
55 DEBUG(10, ("Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(nt_status)));
56 talloc_free(server_credentials);
57 server_credentials = NULL;
60 req->smb_conn->negotiate.server_credentials = talloc_steal(req->smb_conn, server_credentials);
62 gensec_set_target_service(gensec_security, "cifs");
64 gensec_set_credentials(gensec_security, server_credentials);
66 nt_status = gensec_start_mech_by_oid(gensec_security, GENSEC_OID_SPNEGO);
67 if (!NT_STATUS_IS_OK(nt_status)) {
68 DEBUG(0, ("Failed to start SPNEGO: %s\n", nt_errstr(nt_status)));
69 smbsrv_terminate_connection(req->smb_conn, "Failed to start SPNEGO\n");
73 nt_status = gensec_update(gensec_security, req, null_data_blob, &blob);
74 if (!NT_STATUS_IS_OK(nt_status) && !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
75 DEBUG(0, ("Failed to get SPNEGO to give us the first token: %s\n", nt_errstr(nt_status)));
76 smbsrv_terminate_connection(req->smb_conn, "Failed to start SPNEGO - no first token\n");
84 static NTSTATUS smb2srv_negprot_backend(struct smb2srv_request *req, struct smb2_negprot *io)
87 struct timeval current_time;
88 struct timeval boot_time;
90 current_time = timeval_current(); /* TODO: handle timezone?! */
91 boot_time = timeval_current(); /* TODO: fix me */
94 io->out.unknown2 = 0x06;
95 ZERO_STRUCT(io->out.sessid);
96 io->out.unknown3 = 0x0d;
97 io->out.unknown4 = 0x00;
98 io->out.unknown5 = 0x01;
99 io->out.unknown6 = 0x01;
100 io->out.unknown7 = 0x01;
101 io->out.current_time = timeval_to_nttime(¤t_time);
102 io->out.boot_time = timeval_to_nttime(&boot_time);
103 status = smb2srv_negprot_secblob(req, &io->out.secblob);
104 NT_STATUS_NOT_OK_RETURN(status);
105 io->out.unknown9 = 0x204d4c20;
110 static void smb2srv_negprot_send(struct smb2srv_request *req, struct smb2_negprot *io)
114 if (NT_STATUS_IS_ERR(req->status)) {
115 smb2srv_send_error(req, req->status); /* TODO: is this correct? */
119 status = smb2srv_setup_reply(req, 0x40, io->out.secblob.length);
120 if (!NT_STATUS_IS_OK(status)) {
121 smbsrv_terminate_connection(req->smb_conn, nt_errstr(status));
126 SIVAL(req->out.hdr, SMB2_HDR_STATUS, NT_STATUS_V(req->status));
128 SSVAL(req->out.body, 0x02, io->out._pad);
129 SIVAL(req->out.body, 0x04, io->out.unknown2);
130 memcpy(req->out.body+0x08, io->out.sessid, 16);
131 SIVAL(req->out.body, 0x18, io->out.unknown3);
132 SSVAL(req->out.body, 0x1C, io->out.unknown4);
133 SIVAL(req->out.body, 0x1E, io->out.unknown5);
134 SIVAL(req->out.body, 0x22, io->out.unknown6);
135 SSVAL(req->out.body, 0x26, io->out.unknown7);
136 push_nttime(req->out.body, 0x28, io->out.current_time);
137 push_nttime(req->out.body, 0x30, io->out.boot_time);
138 status = smb2_push_o16s16_blob(&req->out, 0x38, io->out.secblob);
139 if (!NT_STATUS_IS_OK(status)) {
140 smbsrv_terminate_connection(req->smb_conn, nt_errstr(status));
145 SIVAL(req->out.body, 0x3C, io->out.unknown9);
147 smb2srv_send_reply(req);
150 void smb2srv_negprot_recv(struct smb2srv_request *req)
152 struct smb2_negprot *io;
154 if (req->in.body_size < 0x26) {
155 smb2srv_send_error(req, NT_STATUS_FOOBAR);
159 io = talloc(req, struct smb2_negprot);
161 smbsrv_terminate_connection(req->smb_conn, nt_errstr(NT_STATUS_NO_MEMORY));
166 io->in.unknown1 = SVAL(req->in.body, 0x02);
167 memcpy(io->in.unknown2, req->in.body + 0x04, 0x20);
168 io->in.unknown3 = SVAL(req->in.body, 0x24);
170 req->status = smb2srv_negprot_backend(req, io);
172 if (req->control_flags & SMB2SRV_REQ_CTRL_FLAG_NOT_REPLY) {
176 smb2srv_negprot_send(req, io);