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/*
Unix SMB/CIFS implementation.
Core SMB2 server
Copyright (C) Stefan Metzmacher 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "smbd/globals.h"
#include "../source4/libcli/smb2/smb2_constants.h"
static struct tevent_req *smbd_smb2_getinfo_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
uint8_t in_info_type,
uint8_t in_file_info_class,
uint32_t in_output_buffer_length,
DATA_BLOB in_input_buffer,
uint32_t in_additional_information,
uint32_t in_flags,
uint64_t in_file_id_volatile);
static NTSTATUS smbd_smb2_getinfo_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
DATA_BLOB *out_output_buffer);
static void smbd_smb2_request_getinfo_done(struct tevent_req *subreq);
NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req)
{
const uint8_t *inhdr;
const uint8_t *inbody;
int i = req->current_idx;
size_t expected_body_size = 0x29;
size_t body_size;
uint8_t in_info_type;
uint8_t in_file_info_class;
uint32_t in_output_buffer_length;
uint16_t in_input_buffer_offset;
uint32_t in_input_buffer_length;
DATA_BLOB in_input_buffer;
uint32_t in_additional_information;
uint32_t in_flags;
uint64_t in_file_id_persistent;
uint64_t in_file_id_volatile;
struct tevent_req *subreq;
inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
body_size = SVAL(inbody, 0x00);
if (body_size != expected_body_size) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
in_info_type = CVAL(inbody, 0x02);
in_file_info_class = CVAL(inbody, 0x03);
in_output_buffer_length = IVAL(inbody, 0x04);
in_input_buffer_offset = SVAL(inbody, 0x08);
/* 0x0A 2 bytes reserved */
in_input_buffer_length = IVAL(inbody, 0x0C);
in_additional_information = IVAL(inbody, 0x10);
in_flags = IVAL(inbody, 0x14);
in_file_id_persistent = BVAL(inbody, 0x18);
in_file_id_volatile = BVAL(inbody, 0x20);
if (in_input_buffer_offset == 0 && in_input_buffer_length == 0) {
/* This is ok */
} else if (in_input_buffer_offset !=
(SMB2_HDR_BODY + (body_size & 0xFFFFFFFE))) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
if (in_input_buffer_length > req->in.vector[i+2].iov_len) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
in_input_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base;
in_input_buffer.length = in_input_buffer_length;
if (req->compat_chain_fsp) {
/* skip check */
} else if (in_file_id_persistent != 0) {
return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
}
subreq = smbd_smb2_getinfo_send(req,
req->conn->smb2.event_ctx,
req,
in_info_type,
in_file_info_class,
in_output_buffer_length,
in_input_buffer,
in_additional_information,
in_flags,
in_file_id_volatile);
if (subreq == NULL) {
return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
}
tevent_req_set_callback(subreq, smbd_smb2_request_getinfo_done, req);
if (tevent_req_is_in_progress(subreq)) {
return smbd_smb2_request_pending_queue(req);
}
return NT_STATUS_OK;
}
static void smbd_smb2_request_getinfo_done(struct tevent_req *subreq)
{
struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
struct smbd_smb2_request);
int i = req->current_idx;
uint8_t *outhdr;
DATA_BLOB outbody;
DATA_BLOB outdyn;
uint16_t out_output_buffer_offset;
DATA_BLOB out_output_buffer;
NTSTATUS status;
NTSTATUS error; /* transport error */
status = smbd_smb2_getinfo_recv(subreq,
req,
&out_output_buffer);
TALLOC_FREE(subreq);
if (!NT_STATUS_IS_OK(status)) {
error = smbd_smb2_request_error(req, status);
if (!NT_STATUS_IS_OK(error)) {
smbd_server_connection_terminate(req->conn,
nt_errstr(error));
return;
}
return;
}
out_output_buffer_offset = SMB2_HDR_BODY + 0x08;
outhdr = (uint8_t *)req->out.vector[i].iov_base;
outbody = data_blob_talloc(req->out.vector, NULL, 0x08);
if (outbody.data == NULL) {
error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
if (!NT_STATUS_IS_OK(error)) {
smbd_server_connection_terminate(req->conn,
nt_errstr(error));
return;
}
return;
}
SSVAL(outbody.data, 0x00, 0x08 + 1); /* struct size */
SSVAL(outbody.data, 0x02,
out_output_buffer_offset); /* output buffer offset */
SIVAL(outbody.data, 0x04,
out_output_buffer.length); /* output buffer length */
outdyn = out_output_buffer;
error = smbd_smb2_request_done(req, outbody, &outdyn);
if (!NT_STATUS_IS_OK(error)) {
smbd_server_connection_terminate(req->conn,
nt_errstr(error));
return;
}
}
struct smbd_smb2_getinfo_state {
struct smbd_smb2_request *smb2req;
NTSTATUS status;
DATA_BLOB out_output_buffer;
};
static struct tevent_req *smbd_smb2_getinfo_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
uint8_t in_info_type,
uint8_t in_file_info_class,
uint32_t in_output_buffer_length,
DATA_BLOB in_input_buffer,
uint32_t in_additional_information,
uint32_t in_flags,
uint64_t in_file_id_volatile)
{
struct tevent_req *req;
struct smbd_smb2_getinfo_state *state;
struct smb_request *smbreq;
connection_struct *conn = smb2req->tcon->compat_conn;
files_struct *fsp;
req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_getinfo_state);
if (req == NULL) {
return NULL;
}
state->smb2req = smb2req;
state->status = NT_STATUS_INTERNAL_ERROR;
state->out_output_buffer = data_blob_null;
DEBUG(10,("smbd_smb2_getinfo_send: file_id[0x%016llX]\n",
(unsigned long long)in_file_id_volatile));
smbreq = smbd_smb2_fake_smb_request(smb2req);
if (tevent_req_nomem(smbreq, req)) {
return tevent_req_post(req, ev);
}
fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
if (fsp == NULL) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
if (conn != fsp->conn) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
if (smb2req->session->vuid != fsp->vuid) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
if (IS_IPC(conn)) {
tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
return tevent_req_post(req, ev);
}
switch (in_info_type) {
case 0x01:/* SMB2_GETINFO_FILE */
{
uint16_t file_info_level;
char *data = NULL;
unsigned int data_size = 0;
bool delete_pending = false;
struct timespec write_time_ts;
struct file_id fileid;
struct ea_list *ea_list = NULL;
int lock_data_count = 0;
char *lock_data = NULL;
bool ms_dfs_link = false;
NTSTATUS status;
ZERO_STRUCT(write_time_ts);
switch (in_file_info_class) {
case 0x0F:/* RAW_FILEINFO_SMB2_ALL_EAS */
file_info_level = 0xFF00 | in_file_info_class;
break;
case 0x12:/* RAW_FILEINFO_SMB2_ALL_INFORMATION */
file_info_level = 0xFF00 | in_file_info_class;
break;
default:
/* the levels directly map to the passthru levels */
file_info_level = in_file_info_class + 1000;
break;
}
if (fsp->fake_file_handle) {
/*
* This is actually for the QUOTA_FAKE_FILE --metze
*/
/* We know this name is ok, it's already passed the checks. */
} else if (fsp && (fsp->is_directory || fsp->fh->fd == -1)) {
/*
* This is actually a QFILEINFO on a directory
* handle (returned from an NT SMB). NT5.0 seems
* to do this call. JRA.
*/
if (INFO_LEVEL_IS_UNIX(file_info_level)) {
/* Always do lstat for UNIX calls. */
if (SMB_VFS_LSTAT(conn, fsp->fsp_name)) {
DEBUG(3,("smbd_smb2_getinfo_send: "
"SMB_VFS_LSTAT of %s failed "
"(%s)\n", fsp_str_dbg(fsp),
strerror(errno)));
status = map_nt_error_from_unix(errno);
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
} else if (SMB_VFS_STAT(conn, fsp->fsp_name)) {
DEBUG(3,("smbd_smb2_getinfo_send: "
"SMB_VFS_STAT of %s failed (%s)\n",
fsp_str_dbg(fsp),
strerror(errno)));
status = map_nt_error_from_unix(errno);
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
fileid = vfs_file_id_from_sbuf(conn,
&fsp->fsp_name->st);
get_file_infos(fileid, &delete_pending, &write_time_ts);
} else {
/*
* Original code - this is an open file.
*/
if (SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
DEBUG(3, ("smbd_smb2_getinfo_send: "
"fstat of fnum %d failed (%s)\n",
fsp->fnum, strerror(errno)));
status = map_nt_error_from_unix(errno);
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
fileid = vfs_file_id_from_sbuf(conn,
&fsp->fsp_name->st);
get_file_infos(fileid, &delete_pending, &write_time_ts);
}
status = smbd_do_qfilepathinfo(conn, state,
file_info_level,
fsp,
fsp->fsp_name,
delete_pending,
write_time_ts,
ms_dfs_link,
ea_list,
lock_data_count,
lock_data,
STR_UNICODE,
in_output_buffer_length,
&data,
&data_size);
if (!NT_STATUS_IS_OK(status)) {
SAFE_FREE(data);
if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
status = NT_STATUS_INVALID_INFO_CLASS;
}
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
if (data_size > 0) {
state->out_output_buffer = data_blob_talloc(state,
data,
data_size);
SAFE_FREE(data);
if (tevent_req_nomem(state->out_output_buffer.data, req)) {
return tevent_req_post(req, ev);
}
}
SAFE_FREE(data);
break;
}
case 0x02:/* SMB2_GETINFO_FS */
{
uint16_t file_info_level;
char *data = NULL;
int data_size = 0;
NTSTATUS status;
SMB_STRUCT_STAT st;
/* the levels directly map to the passthru levels */
file_info_level = in_file_info_class + 1000;
if (vfs_stat_smb_fname(conn,".",&st)!=0) {
DEBUG(2,("call_trans2qfsinfo: stat of . failed (%s)\n",
strerror(errno)));
status = map_nt_error_from_unix(errno);
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
status = smbd_do_qfsinfo(conn, state,
file_info_level,
st,
STR_UNICODE,
in_output_buffer_length,
&data,
&data_size);
if (!NT_STATUS_IS_OK(status)) {
SAFE_FREE(data);
if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
status = NT_STATUS_INVALID_INFO_CLASS;
}
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
if (data_size > 0) {
state->out_output_buffer = data_blob_talloc(state,
data,
data_size);
SAFE_FREE(data);
if (tevent_req_nomem(state->out_output_buffer.data, req)) {
return tevent_req_post(req, ev);
}
}
SAFE_FREE(data);
break;
}
default:
tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
return tevent_req_post(req, ev);
}
tevent_req_done(req);
return tevent_req_post(req, ev);
}
static NTSTATUS smbd_smb2_getinfo_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
DATA_BLOB *out_output_buffer)
{
NTSTATUS status;
struct smbd_smb2_getinfo_state *state = tevent_req_data(req,
struct smbd_smb2_getinfo_state);
if (tevent_req_is_nterror(req, &status)) {
tevent_req_received(req);
return status;
}
*out_output_buffer = state->out_output_buffer;
talloc_steal(mem_ctx, out_output_buffer->data);
tevent_req_received(req);
return NT_STATUS_OK;
}
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