void close_cnum(connection_struct *conn, uint16 vuid)
{
file_close_conn(conn);
if (!IS_IPC(conn)) {
dptr_closecnum(conn);
}
change_to_root_user();
DEBUG(IS_IPC(conn)?3:1, ("%s (%s) closed connection to service %s\n",
get_remote_machine_name(),
tsocket_address_string(conn->sconn->remote_address,
talloc_tos()),
lp_servicename(SNUM(conn))));
/* Call VFS disconnect hook */
SMB_VFS_DISCONNECT(conn);
yield_connection(conn, lp_servicename(SNUM(conn)));
/* make sure we leave the directory available for unmount */
vfs_ChDir(conn, "/");
/* execute any "postexec = " line */
if (*lp_postexec(SNUM(conn)) &&
change_to_user(conn, vuid)) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
conn->session_info->unix_info->unix_name,
conn->connectpath,
conn->session_info->unix_token->gid,
conn->session_info->unix_info->sanitized_username,
conn->session_info->info->domain_name,
lp_postexec(SNUM(conn)));
smbrun(cmd,NULL);
TALLOC_FREE(cmd);
change_to_root_user();
}
change_to_root_user();
/* execute any "root postexec = " line */
if (*lp_rootpostexec(SNUM(conn))) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
conn->session_info->unix_info->unix_name,
conn->connectpath,
conn->session_info->unix_token->gid,
conn->session_info->unix_info->sanitized_username,
conn->session_info->info->domain_name,
lp_rootpostexec(SNUM(conn)));
smbrun(cmd,NULL);
TALLOC_FREE(cmd);
}
conn_free(conn);
}
void close_cnum(connection_struct *conn, uint16 vuid)
{
if (IS_IPC(conn)) {
pipe_close_conn(conn);
} else {
file_close_conn(conn);
dptr_closecnum(conn);
}
change_to_root_user();
DEBUG(IS_IPC(conn)?3:1, ("%s (%s) closed connection to service %s\n",
get_remote_machine_name(),
conn->client_address,
lp_servicename(SNUM(conn))));
/* Call VFS disconnect hook */
SMB_VFS_DISCONNECT(conn);
yield_connection(conn, lp_servicename(SNUM(conn)));
/* make sure we leave the directory available for unmount */
vfs_ChDir(conn, "/");
/* execute any "postexec = " line */
if (*lp_postexec(SNUM(conn)) &&
change_to_user(conn, vuid)) {
pstring cmd;
pstrcpy(cmd,lp_postexec(SNUM(conn)));
standard_sub_advanced(lp_servicename(SNUM(conn)), conn->user,
conn->connectpath, conn->gid,
get_current_username(),
current_user_info.domain,
cmd, sizeof(cmd));
smbrun(cmd,NULL);
change_to_root_user();
}
change_to_root_user();
/* execute any "root postexec = " line */
if (*lp_rootpostexec(SNUM(conn))) {
pstring cmd;
pstrcpy(cmd,lp_rootpostexec(SNUM(conn)));
standard_sub_advanced(lp_servicename(SNUM(conn)), conn->user,
conn->connectpath, conn->gid,
get_current_username(),
current_user_info.domain,
cmd, sizeof(cmd));
smbrun(cmd,NULL);
}
conn_free(conn);
}
struct tevent_req *smb2_ioctl_dfs(uint32_t ctl_code,
struct tevent_context *ev,
struct tevent_req *req,
struct smbd_smb2_ioctl_state *state)
{
NTSTATUS status;
switch (ctl_code) {
case FSCTL_DFS_GET_REFERRALS:
status = fsctl_dfs_get_refers(state, ev, state->smbreq->conn,
&state->in_input,
state->in_max_output,
&state->out_output);
if (!tevent_req_nterror(req, status)) {
tevent_req_done(req);
}
return tevent_req_post(req, ev);
break;
default: {
uint8_t *out_data = NULL;
uint32_t out_data_len = 0;
if (state->fsp == NULL) {
status = NT_STATUS_NOT_SUPPORTED;
} else {
status = SMB_VFS_FSCTL(state->fsp,
state,
ctl_code,
state->smbreq->flags2,
state->in_input.data,
state->in_input.length,
&out_data,
state->in_max_output,
&out_data_len);
state->out_output = data_blob_const(out_data, out_data_len);
if (NT_STATUS_IS_OK(status)) {
tevent_req_done(req);
return tevent_req_post(req, ev);
}
}
if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
if (IS_IPC(state->smbreq->conn)) {
status = NT_STATUS_FS_DRIVER_REQUIRED;
} else {
status = NT_STATUS_INVALID_DEVICE_REQUEST;
}
}
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
break;
}
}
tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
return tevent_req_post(req, ev);
}
/****************************************************************************
close a cnum
****************************************************************************/
void close_cnum(connection_struct *conn, uint16 vuid)
{
DirCacheFlush(SNUM(conn));
unbecome_user();
DEBUG(IS_IPC(conn)?3:1, ("%s (%s) closed connection to service %s\n",
remote_machine,conn->client_address,
lp_servicename(SNUM(conn))));
yield_connection(conn,
lp_servicename(SNUM(conn)),
lp_max_connections(SNUM(conn)));
if (lp_status(SNUM(conn)))
yield_connection(conn,"STATUS.",MAXSTATUS);
file_close_conn(conn);
dptr_closecnum(conn);
/* execute any "postexec = " line */
if (*lp_postexec(SNUM(conn)) &&
become_user(conn, vuid)) {
pstring cmd;
pstrcpy(cmd,lp_postexec(SNUM(conn)));
standard_sub(conn,cmd);
smbrun(cmd,NULL,False);
unbecome_user();
}
unbecome_user();
/* execute any "root postexec = " line */
if (*lp_rootpostexec(SNUM(conn))) {
pstring cmd;
pstrcpy(cmd,lp_rootpostexec(SNUM(conn)));
standard_sub(conn,cmd);
smbrun(cmd,NULL,False);
}
conn_free(conn);
}
static struct tevent_req *smbd_smb2_getinfo_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
struct files_struct *fsp,
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)
{
struct tevent_req *req;
struct smbd_smb2_getinfo_state *state;
struct smb_request *smbreq;
connection_struct *conn = smb2req->tcon->compat;
NTSTATUS status;
req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_getinfo_state);
if (req == NULL) {
return NULL;
}
state->smb2req = smb2req;
state->status = NT_STATUS_OK;
state->out_output_buffer = data_blob_null;
DEBUG(10,("smbd_smb2_getinfo_send: %s - %s\n",
fsp_str_dbg(fsp), fsp_fnum_dbg(fsp)));
smbreq = smbd_smb2_fake_smb_request(smb2req);
if (tevent_req_nomem(smbreq, req)) {
return tevent_req_post(req, ev);
}
if (IS_IPC(conn)) {
smb2_ipc_getinfo(req, state, ev,
in_info_type, in_file_info_class);
return tevent_req_post(req, ev);
}
switch (in_info_type) {
case 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;
size_t fixed_portion;
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->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, fsp->name_hash,
&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 %s failed (%s)\n",
fsp_fnum_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, fsp->name_hash,
&delete_pending, &write_time_ts);
}
status = smbd_do_qfilepathinfo(conn, state,
file_info_level,
fsp,
fsp->fsp_name,
delete_pending,
write_time_ts,
ea_list,
lock_data_count,
lock_data,
STR_UNICODE,
in_output_buffer_length,
&fixed_portion,
&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 (in_output_buffer_length < fixed_portion) {
SAFE_FREE(data);
tevent_req_nterror(
req, NT_STATUS_INFO_LENGTH_MISMATCH);
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);
}
if (data_size > in_output_buffer_length) {
state->out_output_buffer.length =
in_output_buffer_length;
status = STATUS_BUFFER_OVERFLOW;
}
}
SAFE_FREE(data);
break;
}
case SMB2_GETINFO_FS:
{
uint16_t file_info_level;
char *data = NULL;
int data_size = 0;
size_t fixed_portion;
/* the levels directly map to the passthru levels */
file_info_level = in_file_info_class + 1000;
status = smbd_do_qfsinfo(conn, state,
file_info_level,
STR_UNICODE,
in_output_buffer_length,
&fixed_portion,
fsp->fsp_name,
&data,
&data_size);
/* some responses set STATUS_BUFFER_OVERFLOW and return
partial, but valid data */
if (!(NT_STATUS_IS_OK(status) ||
NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW))) {
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 (in_output_buffer_length < fixed_portion) {
SAFE_FREE(data);
tevent_req_nterror(
req, NT_STATUS_INFO_LENGTH_MISMATCH);
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);
}
if (data_size > in_output_buffer_length) {
state->out_output_buffer.length =
in_output_buffer_length;
status = STATUS_BUFFER_OVERFLOW;
}
}
SAFE_FREE(data);
break;
}
case SMB2_GETINFO_SECURITY:
{
uint8_t *p_marshalled_sd = NULL;
size_t sd_size = 0;
status = smbd_do_query_security_desc(conn,
state,
fsp,
/* Security info wanted. */
in_additional_information &
SMB_SUPPORTED_SECINFO_FLAGS,
in_output_buffer_length,
&p_marshalled_sd,
&sd_size);
if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
/* Return needed size. */
state->out_output_buffer = data_blob_talloc(state,
NULL,
4);
if (tevent_req_nomem(state->out_output_buffer.data, req)) {
return tevent_req_post(req, ev);
}
SIVAL(state->out_output_buffer.data,0,(uint32_t)sd_size);
state->status = NT_STATUS_BUFFER_TOO_SMALL;
break;
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10,("smbd_smb2_getinfo_send: "
"smbd_do_query_security_desc of %s failed "
"(%s)\n", fsp_str_dbg(fsp),
nt_errstr(status)));
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
if (sd_size > 0) {
state->out_output_buffer = data_blob_talloc(state,
p_marshalled_sd,
sd_size);
if (tevent_req_nomem(state->out_output_buffer.data, req)) {
return tevent_req_post(req, ev);
}
}
break;
}
case SMB2_GETINFO_QUOTA:
tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
return tevent_req_post(req, ev);
default:
DEBUG(10,("smbd_smb2_getinfo_send: "
"unknown in_info_type of %u "
" for file %s\n",
(unsigned int)in_info_type,
fsp_str_dbg(fsp) ));
tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
return tevent_req_post(req, ev);
}
state->status = status;
tevent_req_done(req);
return tevent_req_post(req, ev);
}
static struct tevent_req *smbd_smb2_read_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
uint32_t in_smbpid,
uint64_t in_file_id_volatile,
uint32_t in_length,
uint64_t in_offset,
uint32_t in_minimum,
uint32_t in_remaining)
{
NTSTATUS status;
struct tevent_req *req = NULL;
struct smbd_smb2_read_state *state = NULL;
struct smb_request *smbreq = NULL;
connection_struct *conn = smb2req->tcon->compat_conn;
files_struct *fsp = NULL;
ssize_t nread = -1;
struct lock_struct lock;
int saved_errno;
req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_read_state);
if (req == NULL) {
return NULL;
}
state->smb2req = smb2req;
state->in_length = in_length;
state->in_offset = in_offset;
state->in_minimum = in_minimum;
state->out_data = data_blob_null;
state->out_remaining = 0;
DEBUG(10,("smbd_smb2_read: 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 (fsp->is_directory) {
tevent_req_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
return tevent_req_post(req, ev);
}
state->fsp = fsp;
state->in_file_id_volatile = in_file_id_volatile;
if (IS_IPC(smbreq->conn)) {
struct tevent_req *subreq = NULL;
state->out_data = data_blob_talloc(state, NULL, in_length);
if (in_length > 0 && tevent_req_nomem(state->out_data.data, req)) {
return tevent_req_post(req, ev);
}
if (!fsp_is_np(fsp)) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
subreq = np_read_send(state, server_event_context(),
fsp->fake_file_handle,
state->out_data.data,
state->out_data.length);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq,
smbd_smb2_read_pipe_done,
req);
return req;
}
if (!CHECK_READ(fsp, smbreq)) {
tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
return tevent_req_post(req, ev);
}
status = schedule_smb2_aio_read(fsp->conn,
smbreq,
fsp,
state,
&state->out_data,
(SMB_OFF_T)in_offset,
(size_t)in_length);
if (NT_STATUS_IS_OK(status)) {
/*
* Doing an async read. Don't
* send a "gone async" message
* as we expect this to be less
* than the client timeout period.
* JRA. FIXME for offline files..
* FIXME. Add cancel code..
*/
smb2req->async = true;
return req;
}
if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
/* Real error in setting up aio. Fail. */
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
/* Fallback to synchronous. */
init_strict_lock_struct(fsp,
in_file_id_volatile,
in_offset,
in_length,
READ_LOCK,
&lock);
if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
tevent_req_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
return tevent_req_post(req, ev);
}
/* Try sendfile in preference. */
status = schedule_smb2_sendfile_read(smb2req, state);
if (NT_STATUS_IS_OK(status)) {
tevent_req_done(req);
return tevent_req_post(req, ev);
} else {
if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
}
/* Ok, read into memory. Allocate the out buffer. */
state->out_data = data_blob_talloc(state, NULL, in_length);
if (in_length > 0 && tevent_req_nomem(state->out_data.data, req)) {
SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
return tevent_req_post(req, ev);
}
nread = read_file(fsp,
(char *)state->out_data.data,
in_offset,
in_length);
saved_errno = errno;
SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
DEBUG(10,("smbd_smb2_read: file %s handle [0x%016llX] offset=%llu "
"len=%llu returned %lld\n",
fsp_str_dbg(fsp),
(unsigned long long)in_file_id_volatile,
(unsigned long long)in_offset,
(unsigned long long)in_length,
(long long)nread));
status = smb2_read_complete(req, nread, saved_errno);
if (!NT_STATUS_IS_OK(status)) {
tevent_req_nterror(req, status);
} else {
/* Success. */
tevent_req_done(req);
}
return tevent_req_post(req, ev);
}
static NTSTATUS make_connection_snum(struct smbXsrv_connection *xconn,
connection_struct *conn,
int snum, struct user_struct *vuser,
const char *pdev)
{
struct smbd_server_connection *sconn = xconn->client->sconn;
struct smb_filename *smb_fname_cpath = NULL;
fstring dev;
int ret;
bool on_err_call_dis_hook = false;
uid_t effuid;
gid_t effgid;
NTSTATUS status;
fstrcpy(dev, pdev);
status = share_sanity_checks(sconn->remote_address,
sconn->remote_hostname,
snum,
dev);
if (NT_STATUS_IS_ERR(status)) {
goto err_root_exit;
}
conn->params->service = snum;
status = create_connection_session_info(sconn,
conn, snum, vuser->session_info,
&conn->session_info);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("create_connection_session_info failed: %s\n",
nt_errstr(status)));
goto err_root_exit;
}
if (lp_guest_only(snum)) {
conn->force_user = true;
}
conn->num_files_open = 0;
conn->lastused = conn->lastused_count = time(NULL);
conn->printer = (strncmp(dev,"LPT",3) == 0);
conn->ipc = ( (strncmp(dev,"IPC",3) == 0) ||
( lp_enable_asu_support() && strequal(dev,"ADMIN$")) );
/* Case options for the share. */
if (lp_case_sensitive(snum) == Auto) {
/* We will be setting this per packet. Set to be case
* insensitive for now. */
conn->case_sensitive = False;
} else {
conn->case_sensitive = (bool)lp_case_sensitive(snum);
}
conn->case_preserve = lp_preserve_case(snum);
conn->short_case_preserve = lp_short_preserve_case(snum);
conn->encrypt_level = lp_smb_encrypt(snum);
conn->veto_list = NULL;
conn->hide_list = NULL;
conn->veto_oplock_list = NULL;
conn->aio_write_behind_list = NULL;
conn->read_only = lp_read_only(SNUM(conn));
status = set_conn_force_user_group(conn, snum);
if (!NT_STATUS_IS_OK(status)) {
goto err_root_exit;
}
conn->vuid = vuser->vuid;
{
char *s = talloc_sub_advanced(talloc_tos(),
lp_servicename(talloc_tos(), SNUM(conn)),
conn->session_info->unix_info->unix_name,
conn->connectpath,
conn->session_info->unix_token->gid,
conn->session_info->unix_info->sanitized_username,
conn->session_info->info->domain_name,
lp_path(talloc_tos(), snum));
if (!s) {
status = NT_STATUS_NO_MEMORY;
goto err_root_exit;
}
if (!set_conn_connectpath(conn,s)) {
TALLOC_FREE(s);
status = NT_STATUS_NO_MEMORY;
goto err_root_exit;
}
DEBUG(3,("Connect path is '%s' for service [%s]\n",s,
lp_servicename(talloc_tos(), snum)));
TALLOC_FREE(s);
}
/*
* Set up the share security descriptor.
* NOTE - we use the *INCOMING USER* session_info
* here, as does (indirectly) change_to_user(),
* which can be called on any incoming packet.
* This way we set up the share access based
* on the authenticated user, not the forced
* user. See bug:
*
* https://bugzilla.samba.org/show_bug.cgi?id=9878
*/
status = check_user_share_access(conn,
vuser->session_info,
&conn->share_access,
&conn->read_only);
if (!NT_STATUS_IS_OK(status)) {
goto err_root_exit;
}
/* Initialise VFS function pointers */
if (!smbd_vfs_init(conn)) {
DEBUG(0, ("vfs_init failed for service %s\n",
lp_servicename(talloc_tos(), snum)));
status = NT_STATUS_BAD_NETWORK_NAME;
goto err_root_exit;
}
/* ROOT Activities: */
/* explicitly check widelinks here so that we can correctly warn
* in the logs. */
widelinks_warning(snum);
/*
* Enforce the max connections parameter.
*/
if ((lp_max_connections(snum) > 0)
&& (count_current_connections(lp_servicename(talloc_tos(), SNUM(conn)), True) >=
lp_max_connections(snum))) {
DEBUG(1, ("Max connections (%d) exceeded for %s\n",
lp_max_connections(snum),
lp_servicename(talloc_tos(), snum)));
status = NT_STATUS_INSUFFICIENT_RESOURCES;
goto err_root_exit;
}
/* Invoke VFS make connection hook - this must be the first
filesystem operation that we do. */
if (SMB_VFS_CONNECT(conn, lp_servicename(talloc_tos(), snum),
conn->session_info->unix_info->unix_name) < 0) {
DBG_WARNING("SMB_VFS_CONNECT for service '%s' at '%s' failed: %s\n",
lp_servicename(talloc_tos(), snum), conn->connectpath,
strerror(errno));
status = NT_STATUS_UNSUCCESSFUL;
goto err_root_exit;
}
/* Any error exit after here needs to call the disconnect hook. */
on_err_call_dis_hook = true;
if ((!conn->printer) && (!conn->ipc) &&
lp_change_notify()) {
if (sconn->notify_ctx == NULL) {
sconn->notify_ctx = notify_init(
sconn, sconn->msg_ctx, sconn->ev_ctx);
status = messaging_register(
sconn->msg_ctx, sconn,
MSG_SMB_NOTIFY_CANCEL_DELETED,
smbd_notify_cancel_deleted);
}
if (sconn->sys_notify_ctx == NULL) {
sconn->sys_notify_ctx = sys_notify_context_create(
sconn, sconn->ev_ctx);
}
}
if (lp_kernel_oplocks(snum)) {
init_kernel_oplocks(conn->sconn);
}
/*
* Fix compatibility issue pointed out by Volker.
* We pass the conn->connectpath to the preexec
* scripts as a parameter, so attempt to canonicalize
* it here before calling the preexec scripts.
* We ignore errors here, as it is possible that
* the conn->connectpath doesn't exist yet and
* the preexec scripts will create them.
*/
(void)canonicalize_connect_path(conn);
/* Preexecs are done here as they might make the dir we are to ChDir
* to below */
/* execute any "root preexec = " line */
if (*lp_root_preexec(talloc_tos(), snum)) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(talloc_tos(), SNUM(conn)),
conn->session_info->unix_info->unix_name,
conn->connectpath,
conn->session_info->unix_token->gid,
conn->session_info->unix_info->sanitized_username,
conn->session_info->info->domain_name,
lp_root_preexec(talloc_tos(), snum));
DEBUG(5,("cmd=%s\n",cmd));
ret = smbrun(cmd,NULL);
TALLOC_FREE(cmd);
if (ret != 0 && lp_root_preexec_close(snum)) {
DEBUG(1,("root preexec gave %d - failing "
"connection\n", ret));
status = NT_STATUS_ACCESS_DENIED;
goto err_root_exit;
}
}
/* USER Activites: */
if (!change_to_user(conn, conn->vuid)) {
/* No point continuing if they fail the basic checks */
DEBUG(0,("Can't become connected user!\n"));
status = NT_STATUS_LOGON_FAILURE;
goto err_root_exit;
}
effuid = geteuid();
effgid = getegid();
/* Remember that a different vuid can connect later without these
* checks... */
/* Preexecs are done here as they might make the dir we are to ChDir
* to below */
/* execute any "preexec = " line */
if (*lp_preexec(talloc_tos(), snum)) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(talloc_tos(), SNUM(conn)),
conn->session_info->unix_info->unix_name,
conn->connectpath,
conn->session_info->unix_token->gid,
conn->session_info->unix_info->sanitized_username,
conn->session_info->info->domain_name,
lp_preexec(talloc_tos(), snum));
ret = smbrun(cmd,NULL);
TALLOC_FREE(cmd);
if (ret != 0 && lp_preexec_close(snum)) {
DEBUG(1,("preexec gave %d - failing connection\n",
ret));
status = NT_STATUS_ACCESS_DENIED;
goto err_root_exit;
}
}
#ifdef WITH_FAKE_KASERVER
if (lp_afs_share(snum)) {
afs_login(conn);
}
#endif
/*
* we've finished with the user stuff - go back to root
* so the SMB_VFS_STAT call will only fail on path errors,
* not permission problems.
*/
change_to_root_user();
/* ROOT Activites: */
/*
* If widelinks are disallowed we need to canonicalise the connect
* path here to ensure we don't have any symlinks in the
* connectpath. We will be checking all paths on this connection are
* below this directory. We must do this after the VFS init as we
* depend on the realpath() pointer in the vfs table. JRA.
*/
if (!lp_widelinks(snum)) {
if (!canonicalize_connect_path(conn)) {
DEBUG(0, ("canonicalize_connect_path failed "
"for service %s, path %s\n",
lp_servicename(talloc_tos(), snum),
conn->connectpath));
status = NT_STATUS_BAD_NETWORK_NAME;
goto err_root_exit;
}
}
/* Add veto/hide lists */
if (!IS_IPC(conn) && !IS_PRINT(conn)) {
set_namearray( &conn->veto_list,
lp_veto_files(talloc_tos(), snum));
set_namearray( &conn->hide_list,
lp_hide_files(talloc_tos(), snum));
set_namearray( &conn->veto_oplock_list,
lp_veto_oplock_files(talloc_tos(), snum));
set_namearray( &conn->aio_write_behind_list,
lp_aio_write_behind(talloc_tos(), snum));
}
smb_fname_cpath = synthetic_smb_fname(talloc_tos(), conn->connectpath,
NULL, NULL);
if (smb_fname_cpath == NULL) {
status = NT_STATUS_NO_MEMORY;
goto err_root_exit;
}
/* win2000 does not check the permissions on the directory
during the tree connect, instead relying on permission
check during individual operations. To match this behaviour
I have disabled this chdir check (tridge) */
/* the alternative is just to check the directory exists */
if ((ret = SMB_VFS_STAT(conn, smb_fname_cpath)) != 0 ||
!S_ISDIR(smb_fname_cpath->st.st_ex_mode)) {
if (ret == 0 && !S_ISDIR(smb_fname_cpath->st.st_ex_mode)) {
DEBUG(0,("'%s' is not a directory, when connecting to "
"[%s]\n", conn->connectpath,
lp_servicename(talloc_tos(), snum)));
} else {
DEBUG(0,("'%s' does not exist or permission denied "
"when connecting to [%s] Error was %s\n",
conn->connectpath,
lp_servicename(talloc_tos(), snum),
strerror(errno) ));
}
status = NT_STATUS_BAD_NETWORK_NAME;
goto err_root_exit;
}
conn->base_share_dev = smb_fname_cpath->st.st_ex_dev;
talloc_free(conn->origpath);
conn->origpath = talloc_strdup(conn, conn->connectpath);
/* Figure out the characteristics of the underlying filesystem. This
* assumes that all the filesystem mounted withing a share path have
* the same characteristics, which is likely but not guaranteed.
*/
conn->fs_capabilities = SMB_VFS_FS_CAPABILITIES(conn, &conn->ts_res);
/*
* Print out the 'connected as' stuff here as we need
* to know the effective uid and gid we will be using
* (at least initially).
*/
if( DEBUGLVL( IS_IPC(conn) ? 3 : 2 ) ) {
dbgtext( "%s (%s) ", get_remote_machine_name(),
tsocket_address_string(conn->sconn->remote_address,
talloc_tos()) );
dbgtext( "%s", srv_is_signing_active(xconn) ? "signed " : "");
dbgtext( "connect to service %s ",
lp_servicename(talloc_tos(), snum) );
dbgtext( "initially as user %s ",
conn->session_info->unix_info->unix_name );
dbgtext( "(uid=%d, gid=%d) ", (int)effuid, (int)effgid );
dbgtext( "(pid %d)\n", (int)getpid() );
}
return status;
err_root_exit:
TALLOC_FREE(smb_fname_cpath);
/* We must exit this function as root. */
if (geteuid() != 0) {
change_to_root_user();
}
if (on_err_call_dis_hook) {
/* Call VFS disconnect hook */
SMB_VFS_DISCONNECT(conn);
}
return status;
}
/****************************************************************************
make a connection to a service
****************************************************************************/
connection_struct *make_connection(char *service,char *user,char *password, int pwlen, char *dev,uint16 vuid, int *ecode)
{
int snum;
struct passwd *pass = NULL;
BOOL guest = False;
BOOL force = False;
extern int Client;
connection_struct *conn;
int ret;
strlower(service);
snum = find_service(service);
if (snum < 0) {
extern int Client;
if (strequal(service,"IPC$")) {
DEBUG(3,("refusing IPC connection\n"));
*ecode = ERRnoipc;
return NULL;
}
DEBUG(0,("%s (%s) couldn't find service %s\n",
remote_machine, client_addr(Client), service));
*ecode = ERRinvnetname;
return NULL;
}
if (strequal(service,HOMES_NAME)) {
if (*user && Get_Pwnam(user,True)) {
fstring dos_username;
fstrcpy(dos_username, user);
unix_to_dos(dos_username, True);
return(make_connection(dos_username,user,password,
pwlen,dev,vuid,ecode));
}
if(lp_security() != SEC_SHARE) {
if (validated_username(vuid)) {
fstring dos_username;
fstrcpy(user,validated_username(vuid));
fstrcpy(dos_username, user);
unix_to_dos(dos_username, True);
return(make_connection(dos_username,user,password,pwlen,dev,vuid,ecode));
}
} else {
/* Security = share. Try with sesssetup_user
* as the username. */
if(*sesssetup_user) {
fstring dos_username;
fstrcpy(user,sesssetup_user);
fstrcpy(dos_username, user);
unix_to_dos(dos_username, True);
return(make_connection(dos_username,user,password,pwlen,dev,vuid,ecode));
}
}
}
if (!lp_snum_ok(snum) ||
!check_access(Client,
lp_hostsallow(snum), lp_hostsdeny(snum))) {
*ecode = ERRaccess;
return NULL;
}
/* you can only connect to the IPC$ service as an ipc device */
if (strequal(service,"IPC$"))
pstrcpy(dev,"IPC");
if (*dev == '?' || !*dev) {
if (lp_print_ok(snum)) {
pstrcpy(dev,"LPT1:");
} else {
pstrcpy(dev,"A:");
}
}
/* if the request is as a printer and you can't print then refuse */
strupper(dev);
if (!lp_print_ok(snum) && (strncmp(dev,"LPT",3) == 0)) {
DEBUG(1,("Attempt to connect to non-printer as a printer\n"));
*ecode = ERRinvdevice;
return NULL;
}
/* lowercase the user name */
strlower(user);
/* add it as a possible user name */
add_session_user(service);
/* shall we let them in? */
if (!authorise_login(snum,user,password,pwlen,&guest,&force,vuid)) {
DEBUG( 2, ( "Invalid username/password for %s\n", service ) );
*ecode = ERRbadpw;
return NULL;
}
conn = conn_new();
if (!conn) {
DEBUG(0,("Couldn't find free connection.\n"));
*ecode = ERRnoresource;
conn_free(conn);
return NULL;
}
/* find out some info about the user */
pass = Get_Pwnam(user,True);
if (pass == NULL) {
DEBUG(0,( "Couldn't find account %s\n",user));
*ecode = ERRbaduid;
conn_free(conn);
return NULL;
}
conn->read_only = lp_readonly(snum);
{
pstring list;
StrnCpy(list,lp_readlist(snum),sizeof(pstring)-1);
pstring_sub(list,"%S",service);
if (user_in_list(user,list))
conn->read_only = True;
StrnCpy(list,lp_writelist(snum),sizeof(pstring)-1);
pstring_sub(list,"%S",service);
if (user_in_list(user,list))
conn->read_only = False;
}
/* admin user check */
/* JRA - original code denied admin user if the share was
marked read_only. Changed as I don't think this is needed,
but old code left in case there is a problem here.
*/
if (user_in_list(user,lp_admin_users(snum))
#if 0
&& !conn->read_only
#endif
) {
conn->admin_user = True;
DEBUG(0,("%s logged in as admin user (root privileges)\n",user));
} else {
conn->admin_user = False;
}
conn->force_user = force;
conn->vuid = vuid;
conn->uid = pass->pw_uid;
conn->gid = pass->pw_gid;
safe_strcpy(conn->client_address, client_addr(Client), sizeof(conn->client_address)-1);
conn->num_files_open = 0;
conn->lastused = time(NULL);
conn->service = snum;
conn->used = True;
conn->printer = (strncmp(dev,"LPT",3) == 0);
conn->ipc = (strncmp(dev,"IPC",3) == 0);
conn->dirptr = NULL;
conn->veto_list = NULL;
conn->hide_list = NULL;
conn->veto_oplock_list = NULL;
string_set(&conn->dirpath,"");
string_set(&conn->user,user);
/*
* If force user is true, then store the
* given userid and also the primary groupid
* of the user we're forcing.
*/
if (*lp_force_user(snum)) {
struct passwd *pass2;
pstring fuser;
pstrcpy(fuser,lp_force_user(snum));
/* Allow %S to be used by force user. */
pstring_sub(fuser,"%S",service);
pass2 = (struct passwd *)Get_Pwnam(fuser,True);
if (pass2) {
conn->uid = pass2->pw_uid;
conn->gid = pass2->pw_gid;
string_set(&conn->user,fuser);
fstrcpy(user,fuser);
conn->force_user = True;
DEBUG(3,("Forced user %s\n",fuser));
} else {
DEBUG(1,("Couldn't find user %s\n",fuser));
}
}
#ifdef HAVE_GETGRNAM
/*
* If force group is true, then override
* any groupid stored for the connecting user.
*/
if (*lp_force_group(snum)) {
struct group *gptr;
pstring gname;
pstring tmp_gname;
BOOL user_must_be_member = False;
StrnCpy(tmp_gname,lp_force_group(snum),sizeof(pstring)-1);
if (tmp_gname[0] == '+') {
user_must_be_member = True;
StrnCpy(gname,&tmp_gname[1],sizeof(pstring)-2);
} else {
StrnCpy(gname,tmp_gname,sizeof(pstring)-1);
}
/* default service may be a group name */
pstring_sub(gname,"%S",service);
gptr = (struct group *)getgrnam(gname);
if (gptr) {
/*
* If the user has been forced and the forced group starts
* with a '+', then we only set the group to be the forced
* group if the forced user is a member of that group.
* Otherwise, the meaning of the '+' would be ignored.
*/
if (conn->force_user && user_must_be_member) {
int i;
for (i = 0; gptr->gr_mem[i] != NULL; i++) {
if (strcmp(user,gptr->gr_mem[i]) == 0) {
conn->gid = gptr->gr_gid;
DEBUG(3,("Forced group %s for member %s\n",gname,user));
break;
}
}
} else {
conn->gid = gptr->gr_gid;
DEBUG(3,("Forced group %s\n",gname));
}
} else {
DEBUG(1,("Couldn't find group %s\n",gname));
}
}
#endif /* HAVE_GETGRNAM */
{
pstring s;
pstrcpy(s,lp_pathname(snum));
standard_sub(conn,s);
string_set(&conn->connectpath,s);
DEBUG(3,("Connect path is %s\n",s));
}
/* groups stuff added by ih */
conn->ngroups = 0;
conn->groups = NULL;
if (!IS_IPC(conn)) {
/* Find all the groups this uid is in and
store them. Used by become_user() */
setup_groups(conn->user,conn->uid,conn->gid,
&conn->ngroups,&conn->groups);
/* check number of connections */
if (!claim_connection(conn,
lp_servicename(SNUM(conn)),
lp_max_connections(SNUM(conn)),
False)) {
DEBUG(1,("too many connections - rejected\n"));
*ecode = ERRnoresource;
conn_free(conn);
return NULL;
}
if (lp_status(SNUM(conn)))
claim_connection(conn,"STATUS.",
MAXSTATUS,False);
} /* IS_IPC */
/* execute any "root preexec = " line */
if (*lp_rootpreexec(SNUM(conn))) {
pstring cmd;
pstrcpy(cmd,lp_rootpreexec(SNUM(conn)));
standard_sub(conn,cmd);
DEBUG(5,("cmd=%s\n",cmd));
ret = smbrun(cmd,NULL,False);
if (ret != 0 && lp_rootpreexec_close(SNUM(conn))) {
DEBUG(1,("preexec gave %d - failing connection\n", ret));
conn_free(conn);
*ecode = ERRsrverror;
return NULL;
}
}
if (!become_user(conn, conn->vuid)) {
DEBUG(0,("Can't become connected user!\n"));
if (!IS_IPC(conn)) {
yield_connection(conn,
lp_servicename(SNUM(conn)),
lp_max_connections(SNUM(conn)));
if (lp_status(SNUM(conn))) {
yield_connection(conn,"STATUS.",MAXSTATUS);
}
}
conn_free(conn);
*ecode = ERRbadpw;
return NULL;
}
if (dos_ChDir(conn->connectpath) != 0) {
DEBUG(0,("Can't change directory to %s (%s)\n",
conn->connectpath,strerror(errno)));
unbecome_user();
if (!IS_IPC(conn)) {
yield_connection(conn,
lp_servicename(SNUM(conn)),
lp_max_connections(SNUM(conn)));
if (lp_status(SNUM(conn)))
yield_connection(conn,"STATUS.",MAXSTATUS);
}
conn_free(conn);
*ecode = ERRinvnetname;
return NULL;
}
string_set(&conn->origpath,conn->connectpath);
#if SOFTLINK_OPTIMISATION
/* resolve any soft links early */
{
pstring s;
pstrcpy(s,conn->connectpath);
dos_GetWd(s);
string_set(&conn->connectpath,s);
dos_ChDir(conn->connectpath);
}
#endif
add_session_user(user);
/* execute any "preexec = " line */
if (*lp_preexec(SNUM(conn))) {
pstring cmd;
pstrcpy(cmd,lp_preexec(SNUM(conn)));
standard_sub(conn,cmd);
ret = smbrun(cmd,NULL,False);
if (ret != 0 && lp_preexec_close(SNUM(conn))) {
DEBUG(1,("preexec gave %d - failing connection\n", ret));
conn_free(conn);
*ecode = ERRsrverror;
return NULL;
}
}
/*
* Print out the 'connected as' stuff here as we need
* to know the effective uid and gid we will be using.
*/
if( DEBUGLVL( IS_IPC(conn) ? 3 : 1 ) ) {
dbgtext( "%s (%s) ", remote_machine, conn->client_address );
dbgtext( "connect to service %s ", lp_servicename(SNUM(conn)) );
dbgtext( "as user %s ", user );
dbgtext( "(uid=%d, gid=%d) ", (int)geteuid(), (int)getegid() );
dbgtext( "(pid %d)\n", (int)getpid() );
}
/* we've finished with the sensitive stuff */
unbecome_user();
/* Add veto/hide lists */
if (!IS_IPC(conn) && !IS_PRINT(conn)) {
set_namearray( &conn->veto_list, lp_veto_files(SNUM(conn)));
set_namearray( &conn->hide_list, lp_hide_files(SNUM(conn)));
set_namearray( &conn->veto_oplock_list, lp_veto_oplocks(SNUM(conn)));
}
return(conn);
}
/* the IAPC PIT 1000hz interrupt. */
void isr_irq0_bottom(struct x86_exregs *regs)
{
uint64_t now = ++global_timer_count;
(*systemclock_p) += 1000;
(*global_pic.send_eoi)(0);
if(now < preempt_timer_count) return;
TRACE("%s: preempt hit at now=%u\n", __func__, (unsigned)now);
preempt_timer_count = ~0ull;
assert(preempt_thread == NULL
|| thread_is_valid(preempt_thread));
if(irq_in_kernel(regs) && !kernel_irq_ok) {
/* defer a magical call to on_preempt() as though it were any old
* interrupt.
*/
irq_defer(0x20);
TRACE("%s: preempt deferred\n", __func__);
return;
}
struct thread *current = get_current_thread();
bool ctx_saved = false;
if(CHECK_FLAG(preempt_status, PS_DELAYED)
|| (current != NULL && preempt_thread != NULL
&& preempt_thread->pri <= current->sens_pri
&& current->max_delay == 0
&& CHECK_FLAG_ALL(L4_VREG(thread_get_utcb(current),
L4_TCR_COP_PREEMPT), 0x60)))
{
assert(!CHECK_FLAG(current->flags, TF_SYSCALL));
save_user_ex(regs);
ctx_saved = true;
}
struct thread *next = on_preempt(0x20);
if(current == NULL) {
/* scheduled activation from idle. */
if(next != NULL) {
TRACE("%s: scheduled activation of next=%lu:%lu\n", __func__,
TID_THREADNUM(next->id), TID_VERSION(next->id));
} else {
TRACE("%s: idle -> idle\n", __func__);
}
kernel_irq_ok = false;
} else if(next != current) {
/* async preëmption of @current. */
assert(!CHECK_FLAG(current->flags, TF_SYSCALL));
TRACE("%s: async preëmpt of %lu:%lu\n", __func__,
TID_THREADNUM(current->id), TID_VERSION(current->id));
if(!ctx_saved) save_user_ex(regs);
if(!IS_IPC(current->status)) {
current->status = TS_READY;
current->wakeup_time = 0;
sq_update_thread(current);
}
}
return_from_irq(next);
TRACE("%s: returning to userspace (preempt_timer_count'=%u)\n",
__func__, (unsigned)preempt_timer_count);
BUG_ON(next != current, "shouldn't get here!");
}
static NTSTATUS fsctl_dfs_get_refers(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct connection_struct *conn,
DATA_BLOB *in_input,
uint32_t in_max_output,
DATA_BLOB *out_output)
{
uint16_t in_max_referral_level;
DATA_BLOB in_file_name_buffer;
char *in_file_name_string;
size_t in_file_name_string_size;
bool ok;
bool overflow = false;
NTSTATUS status;
int dfs_size;
char *dfs_data = NULL;
DATA_BLOB output;
if (!IS_IPC(conn)) {
return NT_STATUS_INVALID_DEVICE_REQUEST;
}
if (!lp_host_msdfs()) {
return NT_STATUS_FS_DRIVER_REQUIRED;
}
if (in_input->length < (2 + 2)) {
return NT_STATUS_INVALID_PARAMETER;
}
in_max_referral_level = SVAL(in_input->data, 0);
in_file_name_buffer.data = in_input->data + 2;
in_file_name_buffer.length = in_input->length - 2;
ok = convert_string_talloc(mem_ctx, CH_UTF16, CH_UNIX,
in_file_name_buffer.data,
in_file_name_buffer.length,
&in_file_name_string,
&in_file_name_string_size);
if (!ok) {
return NT_STATUS_ILLEGAL_CHARACTER;
}
dfs_size = setup_dfs_referral(conn,
in_file_name_string,
in_max_referral_level,
&dfs_data, &status);
if (dfs_size < 0) {
return status;
}
if (dfs_size > in_max_output) {
/*
* TODO: we need a testsuite for this
*/
overflow = true;
dfs_size = in_max_output;
}
output = data_blob_talloc(mem_ctx, (uint8_t *)dfs_data, dfs_size);
SAFE_FREE(dfs_data);
if ((dfs_size > 0) && (output.data == NULL)) {
return NT_STATUS_NO_MEMORY;
}
*out_output = output;
if (overflow) {
return STATUS_BUFFER_OVERFLOW;
}
return NT_STATUS_OK;
}
static NTSTATUS smbd_smb2_tree_connect(struct smbd_smb2_request *req,
const char *in_path,
uint8_t *out_share_type,
uint32_t *out_share_flags,
uint32_t *out_capabilities,
uint32_t *out_maximal_access,
uint32_t *out_tree_id)
{
struct smbXsrv_connection *conn = req->sconn->conn;
const char *share = in_path;
char *service = NULL;
int snum = -1;
struct smbXsrv_tcon *tcon;
NTTIME now = timeval_to_nttime(&req->request_time);
connection_struct *compat_conn = NULL;
struct user_struct *compat_vuser = req->session->compat;
NTSTATUS status;
bool encryption_desired = req->session->encryption_desired;
bool encryption_required = req->session->global->encryption_required;
bool guest_session = false;
if (strncmp(share, "\\\\", 2) == 0) {
const char *p = strchr(share+2, '\\');
if (p) {
share = p + 1;
}
}
DEBUG(10,("smbd_smb2_tree_connect: path[%s] share[%s]\n",
in_path, share));
service = talloc_strdup(talloc_tos(), share);
if(!service) {
return NT_STATUS_NO_MEMORY;
}
if (!strlower_m(service)) {
DEBUG(2, ("strlower_m %s failed\n", service));
return NT_STATUS_INVALID_PARAMETER;
}
/* TODO: do more things... */
if (strequal(service,HOMES_NAME)) {
if (compat_vuser->homes_snum == -1) {
DEBUG(2, ("[homes] share not available for "
"user %s because it was not found "
"or created at session setup "
"time\n",
compat_vuser->session_info->unix_info->unix_name));
return NT_STATUS_BAD_NETWORK_NAME;
}
snum = compat_vuser->homes_snum;
} else if ((compat_vuser->homes_snum != -1)
&& strequal(service,
lp_servicename(talloc_tos(), compat_vuser->homes_snum))) {
snum = compat_vuser->homes_snum;
} else {
snum = find_service(talloc_tos(), service, &service);
if (!service) {
return NT_STATUS_NO_MEMORY;
}
}
if (snum < 0) {
DEBUG(3,("smbd_smb2_tree_connect: couldn't find service %s\n",
service));
return NT_STATUS_BAD_NETWORK_NAME;
}
if ((lp_smb_encrypt(snum) >= SMB_SIGNING_DESIRED) &&
(conn->smb2.client.capabilities & SMB2_CAP_ENCRYPTION)) {
encryption_desired = true;
}
if (lp_smb_encrypt(snum) == SMB_SIGNING_REQUIRED) {
encryption_desired = true;
encryption_required = true;
}
if (security_session_user_level(compat_vuser->session_info, NULL) < SECURITY_USER) {
guest_session = true;
}
if (guest_session && encryption_required) {
DEBUG(1,("reject guest as encryption is required for service %s\n",
service));
return NT_STATUS_ACCESS_DENIED;
}
if (!(conn->smb2.server.capabilities & SMB2_CAP_ENCRYPTION)) {
if (encryption_required) {
DEBUG(1,("reject tcon with dialect[0x%04X] "
"as encryption is required for service %s\n",
conn->smb2.server.dialect, service));
return NT_STATUS_ACCESS_DENIED;
}
}
/* create a new tcon as child of the session */
status = smb2srv_tcon_create(req->session, now, &tcon);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
tcon->encryption_desired = encryption_desired;
tcon->global->encryption_required = encryption_required;
compat_conn = make_connection_smb2(req->sconn,
tcon, snum,
req->session->compat,
"???",
&status);
if (compat_conn == NULL) {
TALLOC_FREE(tcon);
return status;
}
tcon->global->share_name = lp_servicename(tcon->global,
SNUM(compat_conn));
if (tcon->global->share_name == NULL) {
conn_free(compat_conn);
TALLOC_FREE(tcon);
return NT_STATUS_NO_MEMORY;
}
tcon->global->session_global_id =
req->session->global->session_global_id;
tcon->compat = talloc_move(tcon, &compat_conn);
tcon->status = NT_STATUS_OK;
status = smbXsrv_tcon_update(tcon);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(tcon);
return status;
}
if (IS_PRINT(tcon->compat)) {
*out_share_type = SMB2_SHARE_TYPE_PRINT;
} else if (IS_IPC(tcon->compat)) {
*out_share_type = SMB2_SHARE_TYPE_PIPE;
} else {
*out_share_type = SMB2_SHARE_TYPE_DISK;
}
*out_share_flags = 0;
if (lp_msdfs_root(SNUM(tcon->compat)) && lp_host_msdfs()) {
*out_share_flags |= (SMB2_SHAREFLAG_DFS|SMB2_SHAREFLAG_DFS_ROOT);
*out_capabilities = SMB2_SHARE_CAP_DFS;
} else {
*out_capabilities = 0;
}
switch(lp_csc_policy(SNUM(tcon->compat))) {
case CSC_POLICY_MANUAL:
break;
case CSC_POLICY_DOCUMENTS:
*out_share_flags |= SMB2_SHAREFLAG_AUTO_CACHING;
break;
case CSC_POLICY_PROGRAMS:
*out_share_flags |= SMB2_SHAREFLAG_VDO_CACHING;
break;
case CSC_POLICY_DISABLE:
*out_share_flags |= SMB2_SHAREFLAG_NO_CACHING;
break;
default:
break;
}
if (lp_hideunreadable(SNUM(tcon->compat)) ||
lp_hideunwriteable_files(SNUM(tcon->compat))) {
*out_share_flags |= SMB2_SHAREFLAG_ACCESS_BASED_DIRECTORY_ENUM;
}
if (encryption_desired) {
*out_share_flags |= SMB2_SHAREFLAG_ENCRYPT_DATA;
}
*out_maximal_access = tcon->compat->share_access;
*out_tree_id = tcon->global->tcon_wire_id;
return NT_STATUS_OK;
}
struct tevent_req *smb2_ioctl_named_pipe(uint32_t ctl_code,
struct tevent_context *ev,
struct tevent_req *req,
struct smbd_smb2_ioctl_state *state)
{
NTSTATUS status;
uint8_t *out_data = NULL;
uint32_t out_data_len = 0;
if (ctl_code == FSCTL_PIPE_TRANSCEIVE) {
struct tevent_req *subreq;
if (!IS_IPC(state->smbreq->conn)) {
tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
return tevent_req_post(req, ev);
}
if (state->fsp == NULL) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
if (!fsp_is_np(state->fsp)) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
DEBUG(10,("smbd_smb2_ioctl_send: np_write_send of size %u\n",
(unsigned int)state->in_input.length ));
subreq = np_write_send(state, ev,
state->fsp->fake_file_handle,
state->in_input.data,
state->in_input.length);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq,
smbd_smb2_ioctl_pipe_write_done,
req);
return req;
}
if (state->fsp == NULL) {
status = NT_STATUS_NOT_SUPPORTED;
} else {
status = SMB_VFS_FSCTL(state->fsp,
state,
ctl_code,
state->smbreq->flags2,
state->in_input.data,
state->in_input.length,
&out_data,
state->in_max_output,
&out_data_len);
state->out_output = data_blob_const(out_data, out_data_len);
if (NT_STATUS_IS_OK(status)) {
tevent_req_done(req);
return tevent_req_post(req, ev);
}
}
if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
if (IS_IPC(state->smbreq->conn)) {
status = NT_STATUS_FS_DRIVER_REQUIRED;
} else {
status = NT_STATUS_INVALID_DEVICE_REQUEST;
}
}
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
static NTSTATUS smbd_smb2_tree_connect(struct smbd_smb2_request *req,
const char *in_path,
uint8_t *out_share_type,
uint32_t *out_share_flags,
uint32_t *out_capabilities,
uint32_t *out_maximal_access,
uint32_t *out_tree_id)
{
const char *share = in_path;
char *service = NULL;
int snum = -1;
struct smbd_smb2_tcon *tcon;
connection_struct *compat_conn = NULL;
user_struct *compat_vuser = req->session->compat_vuser;
int id;
NTSTATUS status;
if (strncmp(share, "\\\\", 2) == 0) {
const char *p = strchr(share+2, '\\');
if (p) {
share = p + 1;
}
}
DEBUG(10,("smbd_smb2_tree_connect: path[%s] share[%s]\n",
in_path, share));
service = talloc_strdup(talloc_tos(), share);
if(!service) {
return NT_STATUS_NO_MEMORY;
}
strlower_m(service);
/* TODO: do more things... */
if (strequal(service,HOMES_NAME)) {
if (compat_vuser->homes_snum == -1) {
DEBUG(2, ("[homes] share not available for "
"user %s because it was not found "
"or created at session setup "
"time\n",
compat_vuser->session_info->unix_name));
return NT_STATUS_BAD_NETWORK_NAME;
}
snum = compat_vuser->homes_snum;
} else if ((compat_vuser->homes_snum != -1)
&& strequal(service,
lp_servicename(compat_vuser->homes_snum))) {
snum = compat_vuser->homes_snum;
} else {
snum = find_service(talloc_tos(), service, &service);
if (!service) {
return NT_STATUS_NO_MEMORY;
}
}
if (snum < 0) {
DEBUG(3,("smbd_smb2_tree_connect: couldn't find service %s\n",
service));
return NT_STATUS_BAD_NETWORK_NAME;
}
/* create a new tcon as child of the session */
tcon = talloc_zero(req->session, struct smbd_smb2_tcon);
if (tcon == NULL) {
return NT_STATUS_NO_MEMORY;
}
id = idr_get_new_random(req->session->tcons.idtree,
tcon,
req->session->tcons.limit);
if (id == -1) {
TALLOC_FREE(tcon);
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
tcon->tid = id;
tcon->snum = snum;
DLIST_ADD_END(req->session->tcons.list, tcon,
struct smbd_smb2_tcon *);
tcon->session = req->session;
tcon->session->sconn->num_tcons_open++;
talloc_set_destructor(tcon, smbd_smb2_tcon_destructor);
compat_conn = make_connection_smb2(req->sconn,
tcon,
req->session->compat_vuser,
data_blob_null, "???",
&status);
if (compat_conn == NULL) {
TALLOC_FREE(tcon);
return status;
}
tcon->compat_conn = talloc_move(tcon, &compat_conn);
if (IS_PRINT(tcon->compat_conn)) {
*out_share_type = SMB2_SHARE_TYPE_PRINT;
} else if (IS_IPC(tcon->compat_conn)) {
*out_share_type = SMB2_SHARE_TYPE_PIPE;
} else {
*out_share_type = SMB2_SHARE_TYPE_DISK;
}
*out_share_flags = SMB2_SHAREFLAG_ALLOW_NAMESPACE_CACHING;
if (lp_msdfs_root(SNUM(tcon->compat_conn)) && lp_host_msdfs()) {
*out_share_flags |= (SMB2_SHAREFLAG_DFS|SMB2_SHAREFLAG_DFS_ROOT);
*out_capabilities = SMB2_SHARE_CAP_DFS;
} else {
*out_capabilities = 0;
}
switch(lp_csc_policy(SNUM(tcon->compat_conn))) {
case CSC_POLICY_MANUAL:
break;
case CSC_POLICY_DOCUMENTS:
*out_share_flags |= SMB2_SHAREFLAG_AUTO_CACHING;
break;
case CSC_POLICY_PROGRAMS:
*out_share_flags |= SMB2_SHAREFLAG_VDO_CACHING;
break;
case CSC_POLICY_DISABLE:
*out_share_flags |= SMB2_SHAREFLAG_NO_CACHING;
break;
default:
break;
}
*out_maximal_access = tcon->compat_conn->share_access;
*out_tree_id = tcon->tid;
return NT_STATUS_OK;
}
static struct tevent_req *smbd_smb2_read_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
struct files_struct *fsp,
uint32_t in_length,
uint64_t in_offset,
uint32_t in_minimum,
uint32_t in_remaining)
{
NTSTATUS status;
struct tevent_req *req = NULL;
struct smbd_smb2_read_state *state = NULL;
struct smb_request *smbreq = NULL;
connection_struct *conn = smb2req->tcon->compat;
ssize_t nread = -1;
struct lock_struct lock;
int saved_errno;
req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_read_state);
if (req == NULL) {
return NULL;
}
state->smb2req = smb2req;
state->in_length = in_length;
state->in_offset = in_offset;
state->in_minimum = in_minimum;
state->out_data = data_blob_null;
state->out_remaining = 0;
DEBUG(10,("smbd_smb2_read: %s - %s\n",
fsp_str_dbg(fsp), fsp_fnum_dbg(fsp)));
smbreq = smbd_smb2_fake_smb_request(smb2req);
if (tevent_req_nomem(smbreq, req)) {
return tevent_req_post(req, ev);
}
state->smbreq = smbreq;
if (fsp->is_directory) {
tevent_req_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
return tevent_req_post(req, ev);
}
state->fsp = fsp;
if (IS_IPC(smbreq->conn)) {
struct tevent_req *subreq = NULL;
state->out_data = data_blob_talloc(state, NULL, in_length);
if (in_length > 0 && tevent_req_nomem(state->out_data.data, req)) {
return tevent_req_post(req, ev);
}
if (!fsp_is_np(fsp)) {
tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
return tevent_req_post(req, ev);
}
subreq = np_read_send(state, ev,
fsp->fake_file_handle,
state->out_data.data,
state->out_data.length);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq,
smbd_smb2_read_pipe_done,
req);
return req;
}
if (!CHECK_READ(fsp, smbreq)) {
tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
return tevent_req_post(req, ev);
}
status = schedule_smb2_aio_read(fsp->conn,
smbreq,
fsp,
state,
&state->out_data,
(off_t)in_offset,
(size_t)in_length);
if (NT_STATUS_IS_OK(status)) {
/*
* Doing an async read, allow this
* request to be canceled
*/
tevent_req_set_cancel_fn(req, smbd_smb2_read_cancel);
return req;
}
if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
/* Real error in setting up aio. Fail. */
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
/* Fallback to synchronous. */
init_strict_lock_struct(fsp,
fsp->op->global->open_persistent_id,
in_offset,
in_length,
READ_LOCK,
&lock);
if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
tevent_req_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
return tevent_req_post(req, ev);
}
/* Try sendfile in preference. */
status = schedule_smb2_sendfile_read(smb2req, state);
if (NT_STATUS_IS_OK(status)) {
tevent_req_done(req);
return tevent_req_post(req, ev);
} else {
if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
tevent_req_nterror(req, status);
return tevent_req_post(req, ev);
}
}
/* Ok, read into memory. Allocate the out buffer. */
state->out_data = data_blob_talloc(state, NULL, in_length);
if (in_length > 0 && tevent_req_nomem(state->out_data.data, req)) {
SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
return tevent_req_post(req, ev);
}
nread = read_file(fsp,
(char *)state->out_data.data,
in_offset,
in_length);
saved_errno = errno;
SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
DEBUG(10,("smbd_smb2_read: file %s, %s, offset=%llu "
"len=%llu returned %lld\n",
fsp_str_dbg(fsp),
fsp_fnum_dbg(fsp),
(unsigned long long)in_offset,
(unsigned long long)in_length,
(long long)nread));
status = smb2_read_complete(req, nread, saved_errno);
if (!NT_STATUS_IS_OK(status)) {
tevent_req_nterror(req, status);
} else {
/* Success. */
tevent_req_done(req);
}
return tevent_req_post(req, ev);
}
connection_struct *make_connection_snum(struct smbd_server_connection *sconn,
int snum, user_struct *vuser,
DATA_BLOB password,
const char *pdev,
NTSTATUS *pstatus)
{
connection_struct *conn;
struct smb_filename *smb_fname_cpath = NULL;
fstring dev;
int ret;
char addr[INET6_ADDRSTRLEN];
bool on_err_call_dis_hook = false;
NTSTATUS status;
fstrcpy(dev, pdev);
if (NT_STATUS_IS_ERR(*pstatus = share_sanity_checks(snum, dev))) {
return NULL;
}
conn = conn_new(sconn);
if (!conn) {
DEBUG(0,("Couldn't find free connection.\n"));
*pstatus = NT_STATUS_INSUFFICIENT_RESOURCES;
return NULL;
}
conn->params->service = snum;
status = create_connection_server_info(sconn,
conn, snum, vuser ? vuser->server_info : NULL, password,
&conn->server_info);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("create_connection_server_info failed: %s\n",
nt_errstr(status)));
*pstatus = status;
conn_free(conn);
return NULL;
}
if ((lp_guest_only(snum)) || (lp_security() == SEC_SHARE)) {
conn->force_user = true;
}
add_session_user(sconn, conn->server_info->unix_name);
safe_strcpy(conn->client_address,
client_addr(get_client_fd(),addr,sizeof(addr)),
sizeof(conn->client_address)-1);
conn->num_files_open = 0;
conn->lastused = conn->lastused_count = time(NULL);
conn->used = True;
conn->printer = (strncmp(dev,"LPT",3) == 0);
conn->ipc = ( (strncmp(dev,"IPC",3) == 0) ||
( lp_enable_asu_support() && strequal(dev,"ADMIN$")) );
/* Case options for the share. */
if (lp_casesensitive(snum) == Auto) {
/* We will be setting this per packet. Set to be case
* insensitive for now. */
conn->case_sensitive = False;
} else {
conn->case_sensitive = (bool)lp_casesensitive(snum);
}
conn->case_preserve = lp_preservecase(snum);
conn->short_case_preserve = lp_shortpreservecase(snum);
conn->encrypt_level = lp_smb_encrypt(snum);
conn->veto_list = NULL;
conn->hide_list = NULL;
conn->veto_oplock_list = NULL;
conn->aio_write_behind_list = NULL;
conn->read_only = lp_readonly(SNUM(conn));
conn->admin_user = False;
if (*lp_force_user(snum)) {
/*
* Replace conn->server_info with a completely faked up one
* from the username we are forced into :-)
*/
char *fuser;
struct auth_serversupplied_info *forced_serverinfo;
fuser = talloc_string_sub(conn, lp_force_user(snum), "%S",
lp_servicename(snum));
if (fuser == NULL) {
conn_free(conn);
*pstatus = NT_STATUS_NO_MEMORY;
return NULL;
}
status = make_serverinfo_from_username(
conn, fuser, conn->server_info->guest,
&forced_serverinfo);
if (!NT_STATUS_IS_OK(status)) {
conn_free(conn);
*pstatus = status;
return NULL;
}
TALLOC_FREE(conn->server_info);
conn->server_info = forced_serverinfo;
conn->force_user = True;
DEBUG(3,("Forced user %s\n", fuser));
}
/*
* If force group is true, then override
* any groupid stored for the connecting user.
*/
if (*lp_force_group(snum)) {
status = find_forced_group(
conn->force_user, snum, conn->server_info->unix_name,
&conn->server_info->ptok->user_sids[1],
&conn->server_info->utok.gid);
if (!NT_STATUS_IS_OK(status)) {
conn_free(conn);
*pstatus = status;
return NULL;
}
/*
* We need to cache this gid, to use within
* change_to_user() separately from the conn->server_info
* struct. We only use conn->server_info directly if
* "force_user" was set.
*/
conn->force_group_gid = conn->server_info->utok.gid;
}
conn->vuid = (vuser != NULL) ? vuser->vuid : UID_FIELD_INVALID;
{
char *s = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
conn->server_info->unix_name,
conn->connectpath,
conn->server_info->utok.gid,
conn->server_info->sanitized_username,
pdb_get_domain(conn->server_info->sam_account),
lp_pathname(snum));
if (!s) {
conn_free(conn);
*pstatus = NT_STATUS_NO_MEMORY;
return NULL;
}
if (!set_conn_connectpath(conn,s)) {
TALLOC_FREE(s);
conn_free(conn);
*pstatus = NT_STATUS_NO_MEMORY;
return NULL;
}
DEBUG(3,("Connect path is '%s' for service [%s]\n",s,
lp_servicename(snum)));
TALLOC_FREE(s);
}
/*
* New code to check if there's a share security descripter
* added from NT server manager. This is done after the
* smb.conf checks are done as we need a uid and token. JRA.
*
*/
{
bool can_write = False;
can_write = share_access_check(conn->server_info->ptok,
lp_servicename(snum),
FILE_WRITE_DATA);
if (!can_write) {
if (!share_access_check(conn->server_info->ptok,
lp_servicename(snum),
FILE_READ_DATA)) {
/* No access, read or write. */
DEBUG(0,("make_connection: connection to %s "
"denied due to security "
"descriptor.\n",
lp_servicename(snum)));
conn_free(conn);
*pstatus = NT_STATUS_ACCESS_DENIED;
return NULL;
} else {
conn->read_only = True;
}
}
}
/* Initialise VFS function pointers */
if (!smbd_vfs_init(conn)) {
DEBUG(0, ("vfs_init failed for service %s\n",
lp_servicename(snum)));
conn_free(conn);
*pstatus = NT_STATUS_BAD_NETWORK_NAME;
return NULL;
}
/*
* If widelinks are disallowed we need to canonicalise the connect
* path here to ensure we don't have any symlinks in the
* connectpath. We will be checking all paths on this connection are
* below this directory. We must do this after the VFS init as we
* depend on the realpath() pointer in the vfs table. JRA.
*/
if (!lp_widelinks(snum)) {
if (!canonicalize_connect_path(conn)) {
DEBUG(0, ("canonicalize_connect_path failed "
"for service %s, path %s\n",
lp_servicename(snum),
conn->connectpath));
conn_free(conn);
*pstatus = NT_STATUS_BAD_NETWORK_NAME;
return NULL;
}
}
if ((!conn->printer) && (!conn->ipc)) {
conn->notify_ctx = notify_init(conn, server_id_self(),
smbd_messaging_context(),
smbd_event_context(),
conn);
}
/* ROOT Activities: */
/*
* Enforce the max connections parameter.
*/
if ((lp_max_connections(snum) > 0)
&& (count_current_connections(lp_servicename(SNUM(conn)), True) >=
lp_max_connections(snum))) {
DEBUG(1, ("Max connections (%d) exceeded for %s\n",
lp_max_connections(snum), lp_servicename(snum)));
conn_free(conn);
*pstatus = NT_STATUS_INSUFFICIENT_RESOURCES;
return NULL;
}
/*
* Get us an entry in the connections db
*/
if (!claim_connection(conn, lp_servicename(snum), 0)) {
DEBUG(1, ("Could not store connections entry\n"));
conn_free(conn);
*pstatus = NT_STATUS_INTERNAL_DB_ERROR;
return NULL;
}
/* Preexecs are done here as they might make the dir we are to ChDir
* to below */
/* execute any "root preexec = " line */
if (*lp_rootpreexec(snum)) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
conn->server_info->unix_name,
conn->connectpath,
conn->server_info->utok.gid,
conn->server_info->sanitized_username,
pdb_get_domain(conn->server_info->sam_account),
lp_rootpreexec(snum));
DEBUG(5,("cmd=%s\n",cmd));
ret = smbrun(cmd,NULL);
TALLOC_FREE(cmd);
if (ret != 0 && lp_rootpreexec_close(snum)) {
DEBUG(1,("root preexec gave %d - failing "
"connection\n", ret));
yield_connection(conn, lp_servicename(snum));
conn_free(conn);
*pstatus = NT_STATUS_ACCESS_DENIED;
return NULL;
}
}
/* USER Activites: */
if (!change_to_user(conn, conn->vuid)) {
/* No point continuing if they fail the basic checks */
DEBUG(0,("Can't become connected user!\n"));
yield_connection(conn, lp_servicename(snum));
conn_free(conn);
*pstatus = NT_STATUS_LOGON_FAILURE;
return NULL;
}
/* Remember that a different vuid can connect later without these
* checks... */
/* Preexecs are done here as they might make the dir we are to ChDir
* to below */
/* execute any "preexec = " line */
if (*lp_preexec(snum)) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
conn->server_info->unix_name,
conn->connectpath,
conn->server_info->utok.gid,
conn->server_info->sanitized_username,
pdb_get_domain(conn->server_info->sam_account),
lp_preexec(snum));
ret = smbrun(cmd,NULL);
TALLOC_FREE(cmd);
if (ret != 0 && lp_preexec_close(snum)) {
DEBUG(1,("preexec gave %d - failing connection\n",
ret));
*pstatus = NT_STATUS_ACCESS_DENIED;
goto err_root_exit;
}
}
#ifdef WITH_FAKE_KASERVER
if (lp_afs_share(snum)) {
afs_login(conn);
}
#endif
/* Add veto/hide lists */
if (!IS_IPC(conn) && !IS_PRINT(conn)) {
set_namearray( &conn->veto_list, lp_veto_files(snum));
set_namearray( &conn->hide_list, lp_hide_files(snum));
set_namearray( &conn->veto_oplock_list, lp_veto_oplocks(snum));
set_namearray( &conn->aio_write_behind_list,
lp_aio_write_behind(snum));
}
/* Invoke VFS make connection hook - do this before the VFS_STAT call
to allow any filesystems needing user credentials to initialize
themselves. */
if (SMB_VFS_CONNECT(conn, lp_servicename(snum),
conn->server_info->unix_name) < 0) {
DEBUG(0,("make_connection: VFS make connection failed!\n"));
*pstatus = NT_STATUS_UNSUCCESSFUL;
goto err_root_exit;
}
/* Any error exit after here needs to call the disconnect hook. */
on_err_call_dis_hook = true;
status = create_synthetic_smb_fname(talloc_tos(), conn->connectpath,
NULL, NULL, &smb_fname_cpath);
if (!NT_STATUS_IS_OK(status)) {
*pstatus = status;
goto err_root_exit;
}
/* win2000 does not check the permissions on the directory
during the tree connect, instead relying on permission
check during individual operations. To match this behaviour
I have disabled this chdir check (tridge) */
/* the alternative is just to check the directory exists */
if ((ret = SMB_VFS_STAT(conn, smb_fname_cpath)) != 0 ||
!S_ISDIR(smb_fname_cpath->st.st_ex_mode)) {
if (ret == 0 && !S_ISDIR(smb_fname_cpath->st.st_ex_mode)) {
DEBUG(0,("'%s' is not a directory, when connecting to "
"[%s]\n", conn->connectpath,
lp_servicename(snum)));
} else {
DEBUG(0,("'%s' does not exist or permission denied "
"when connecting to [%s] Error was %s\n",
conn->connectpath, lp_servicename(snum),
strerror(errno) ));
}
*pstatus = NT_STATUS_BAD_NETWORK_NAME;
goto err_root_exit;
}
string_set(&conn->origpath,conn->connectpath);
#if SOFTLINK_OPTIMISATION
/* resolve any soft links early if possible */
if (vfs_ChDir(conn,conn->connectpath) == 0) {
TALLOC_CTX *ctx = talloc_tos();
char *s = vfs_GetWd(ctx,s);
if (!s) {
*status = map_nt_error_from_unix(errno);
goto err_root_exit;
}
if (!set_conn_connectpath(conn,s)) {
*status = NT_STATUS_NO_MEMORY;
goto err_root_exit;
}
vfs_ChDir(conn,conn->connectpath);
}
#endif
if (lp_unix_extensions() && lp_widelinks(snum)) {
DEBUG(0,("Share '%s' has wide links and unix extensions enabled. "
"These parameters are incompatible. "
"Disabling wide links for this share.\n",
lp_servicename(snum) ));
lp_do_parameter(snum, "wide links", "False");
}
/* Figure out the characteristics of the underlying filesystem. This
* assumes that all the filesystem mounted withing a share path have
* the same characteristics, which is likely but not guaranteed.
*/
conn->fs_capabilities = SMB_VFS_FS_CAPABILITIES(conn, &conn->ts_res);
/*
* Print out the 'connected as' stuff here as we need
* to know the effective uid and gid we will be using
* (at least initially).
*/
if( DEBUGLVL( IS_IPC(conn) ? 3 : 1 ) ) {
dbgtext( "%s (%s) ", get_remote_machine_name(),
conn->client_address );
dbgtext( "%s", srv_is_signing_active(smbd_server_conn) ? "signed " : "");
dbgtext( "connect to service %s ", lp_servicename(snum) );
dbgtext( "initially as user %s ",
conn->server_info->unix_name );
dbgtext( "(uid=%d, gid=%d) ", (int)geteuid(), (int)getegid() );
dbgtext( "(pid %d)\n", (int)sys_getpid() );
}
/* we've finished with the user stuff - go back to root */
change_to_root_user();
return(conn);
err_root_exit:
TALLOC_FREE(smb_fname_cpath);
change_to_root_user();
if (on_err_call_dis_hook) {
/* Call VFS disconnect hook */
SMB_VFS_DISCONNECT(conn);
}
yield_connection(conn, lp_servicename(snum));
conn_free(conn);
return NULL;
}
static connection_struct *make_connection_snum(int snum, user_struct *vuser,
DATA_BLOB password,
const char *pdev,
NTSTATUS *status)
{
struct passwd *pass = NULL;
BOOL guest = False;
connection_struct *conn;
SMB_STRUCT_STAT st;
fstring user;
fstring dev;
int ret;
struct timespec atime_ts, mtime_ts, ctime_ts;
*user = 0;
fstrcpy(dev, pdev);
SET_STAT_INVALID(st);
if (NT_STATUS_IS_ERR(*status = share_sanity_checks(snum, dev))) {
return NULL;
}
conn = conn_new();
if (!conn) {
DEBUG(0,("Couldn't find free connection.\n"));
*status = NT_STATUS_INSUFFICIENT_RESOURCES;
return NULL;
}
conn->params->service = snum;
conn->nt_user_token = NULL;
if (lp_guest_only(snum)) {
const char *guestname = lp_guestaccount();
NTSTATUS status2;
char *found_username = NULL;
guest = True;
pass = getpwnam_alloc(NULL, guestname);
if (!pass) {
DEBUG(0,("make_connection_snum: Invalid guest "
"account %s??\n",guestname));
conn_free(conn);
*status = NT_STATUS_NO_SUCH_USER;
return NULL;
}
status2 = create_token_from_username(conn->mem_ctx, pass->pw_name, True,
&conn->uid, &conn->gid,
&found_username,
&conn->nt_user_token);
if (!NT_STATUS_IS_OK(status2)) {
TALLOC_FREE(pass);
conn_free(conn);
*status = status2;
return NULL;
}
fstrcpy(user, found_username);
string_set(&conn->user,user);
conn->force_user = True;
TALLOC_FREE(found_username);
TALLOC_FREE(pass);
DEBUG(3,("Guest only user %s\n",user));
} else if (vuser) {
if (vuser->guest) {
if (!lp_guest_ok(snum)) {
DEBUG(2, ("guest user (from session setup) "
"not permitted to access this share "
"(%s)\n", lp_servicename(snum)));
conn_free(conn);
*status = NT_STATUS_ACCESS_DENIED;
return NULL;
}
} else {
if (!user_ok_token(vuser->user.unix_name,
vuser->nt_user_token, snum)) {
DEBUG(2, ("user '%s' (from session setup) not "
"permitted to access this share "
"(%s)\n", vuser->user.unix_name,
lp_servicename(snum)));
conn_free(conn);
*status = NT_STATUS_ACCESS_DENIED;
return NULL;
}
}
conn->vuid = vuser->vuid;
conn->uid = vuser->uid;
conn->gid = vuser->gid;
string_set(&conn->user,vuser->user.unix_name);
fstrcpy(user,vuser->user.unix_name);
guest = vuser->guest;
} else if (lp_security() == SEC_SHARE) {
NTSTATUS status2;
char *found_username = NULL;
/* add it as a possible user name if we
are in share mode security */
add_session_user(lp_servicename(snum));
/* shall we let them in? */
if (!authorise_login(snum,user,password,&guest)) {
DEBUG( 2, ( "Invalid username/password for [%s]\n",
lp_servicename(snum)) );
conn_free(conn);
*status = NT_STATUS_WRONG_PASSWORD;
return NULL;
}
pass = Get_Pwnam(user);
status2 = create_token_from_username(conn->mem_ctx, pass->pw_name, True,
&conn->uid, &conn->gid,
&found_username,
&conn->nt_user_token);
if (!NT_STATUS_IS_OK(status2)) {
conn_free(conn);
*status = status2;
return NULL;
}
fstrcpy(user, found_username);
string_set(&conn->user,user);
TALLOC_FREE(found_username);
conn->force_user = True;
} else {
DEBUG(0, ("invalid VUID (vuser) but not in security=share\n"));
conn_free(conn);
*status = NT_STATUS_ACCESS_DENIED;
return NULL;
}
add_session_user(user);
safe_strcpy(conn->client_address, client_addr(),
sizeof(conn->client_address)-1);
conn->num_files_open = 0;
conn->lastused = conn->lastused_count = time(NULL);
conn->used = True;
conn->printer = (strncmp(dev,"LPT",3) == 0);
conn->ipc = ( (strncmp(dev,"IPC",3) == 0) ||
( lp_enable_asu_support() && strequal(dev,"ADMIN$")) );
conn->dirptr = NULL;
/* Case options for the share. */
if (lp_casesensitive(snum) == Auto) {
/* We will be setting this per packet. Set to be case
* insensitive for now. */
conn->case_sensitive = False;
} else {
conn->case_sensitive = (BOOL)lp_casesensitive(snum);
}
conn->case_preserve = lp_preservecase(snum);
conn->short_case_preserve = lp_shortpreservecase(snum);
conn->veto_list = NULL;
conn->hide_list = NULL;
conn->veto_oplock_list = NULL;
conn->aio_write_behind_list = NULL;
string_set(&conn->dirpath,"");
string_set(&conn->user,user);
conn->read_only = lp_readonly(SNUM(conn));
conn->admin_user = False;
/*
* If force user is true, then store the given userid and the gid of
* the user we're forcing.
* For auxiliary groups see below.
*/
if (*lp_force_user(snum)) {
NTSTATUS status2;
status2 = find_forced_user(conn,
(vuser != NULL) && vuser->guest,
user);
if (!NT_STATUS_IS_OK(status2)) {
conn_free(conn);
*status = status2;
return NULL;
}
string_set(&conn->user,user);
conn->force_user = True;
DEBUG(3,("Forced user %s\n",user));
}
/*
* If force group is true, then override
* any groupid stored for the connecting user.
*/
if (*lp_force_group(snum)) {
NTSTATUS status2;
DOM_SID group_sid;
status2 = find_forced_group(conn->force_user,
snum, user,
&group_sid, &conn->gid);
if (!NT_STATUS_IS_OK(status2)) {
conn_free(conn);
*status = status2;
return NULL;
}
if ((conn->nt_user_token == NULL) && (vuser != NULL)) {
/* Not force user and not security=share, but force
* group. vuser has a token to copy */
conn->nt_user_token = dup_nt_token(
NULL, vuser->nt_user_token);
if (conn->nt_user_token == NULL) {
DEBUG(0, ("dup_nt_token failed\n"));
conn_free(conn);
*status = NT_STATUS_NO_MEMORY;
return NULL;
}
}
/* If conn->nt_user_token is still NULL, we have
* security=share. This means ignore the SID, as we had no
* vuser to copy from */
if (conn->nt_user_token != NULL) {
/* Overwrite the primary group sid */
sid_copy(&conn->nt_user_token->user_sids[1],
&group_sid);
}
conn->force_group = True;
}
if (conn->nt_user_token != NULL) {
size_t i;
/* We have a share-specific token from force [user|group].
* This means we have to create the list of unix groups from
* the list of sids. */
conn->ngroups = 0;
conn->groups = NULL;
for (i=0; i<conn->nt_user_token->num_sids; i++) {
gid_t gid;
DOM_SID *sid = &conn->nt_user_token->user_sids[i];
if (!sid_to_gid(sid, &gid)) {
DEBUG(10, ("Could not convert SID %s to gid, "
"ignoring it\n",
sid_string_static(sid)));
continue;
}
if (!add_gid_to_array_unique(conn->mem_ctx, gid, &conn->groups,
&conn->ngroups)) {
DEBUG(0, ("add_gid_to_array_unique failed\n"));
conn_free(conn);
*status = NT_STATUS_NO_MEMORY;
return NULL;
}
}
}
{
pstring s;
pstrcpy(s,lp_pathname(snum));
standard_sub_advanced(lp_servicename(SNUM(conn)), conn->user,
conn->connectpath, conn->gid,
get_current_username(),
current_user_info.domain,
s, sizeof(s));
if (s[0] == '\0') {
DEBUG(6, ("service [%s] did not resolve to a path\n",
lp_servicename(snum)));
conn_free(conn);
*status = NT_STATUS_BAD_NETWORK_NAME;
return NULL;
}
set_conn_connectpath(conn,s);
DEBUG(3,("Connect path is '%s' for service [%s]\n",s,
lp_servicename(snum)));
}
/*
* New code to check if there's a share security descripter
* added from NT server manager. This is done after the
* smb.conf checks are done as we need a uid and token. JRA.
*
*/
{
BOOL can_write = False;
NT_USER_TOKEN *token = conn->nt_user_token ?
conn->nt_user_token :
(vuser ? vuser->nt_user_token : NULL);
/*
* I don't believe this can happen. But the
* logic above is convoluted enough to confuse
* automated checkers, so be sure. JRA.
*/
if (token == NULL) {
DEBUG(0,("make_connection: connection to %s "
"denied due to missing "
"NT token.\n",
lp_servicename(snum)));
conn_free(conn);
*status = NT_STATUS_ACCESS_DENIED;
return NULL;
}
can_write = share_access_check(token,
lp_servicename(snum),
FILE_WRITE_DATA);
if (!can_write) {
if (!share_access_check(token,
lp_servicename(snum),
FILE_READ_DATA)) {
/* No access, read or write. */
DEBUG(0,("make_connection: connection to %s "
"denied due to security "
"descriptor.\n",
lp_servicename(snum)));
conn_free(conn);
*status = NT_STATUS_ACCESS_DENIED;
return NULL;
} else {
conn->read_only = True;
}
}
}
/* Initialise VFS function pointers */
if (!smbd_vfs_init(conn)) {
DEBUG(0, ("vfs_init failed for service %s\n",
lp_servicename(snum)));
conn_free(conn);
*status = NT_STATUS_BAD_NETWORK_NAME;
return NULL;
}
/*
* If widelinks are disallowed we need to canonicalise the connect
* path here to ensure we don't have any symlinks in the
* connectpath. We will be checking all paths on this connection are
* below this directory. We must do this after the VFS init as we
* depend on the realpath() pointer in the vfs table. JRA.
*/
if (!lp_widelinks(snum)) {
pstring s;
pstrcpy(s,conn->connectpath);
canonicalize_path(conn, s);
set_conn_connectpath(conn,s);
}
if ((!conn->printer) && (!conn->ipc)) {
conn->notify_ctx = notify_init(conn->mem_ctx, server_id_self(),
smbd_messaging_context(),
smbd_event_context(),
conn);
}
/* ROOT Activities: */
/* check number of connections */
if (!claim_connection(conn,
lp_servicename(snum),
lp_max_connections(snum),
False,0)) {
DEBUG(1,("too many connections - rejected\n"));
conn_free(conn);
*status = NT_STATUS_INSUFFICIENT_RESOURCES;
return NULL;
}
/* Preexecs are done here as they might make the dir we are to ChDir
* to below */
/* execute any "root preexec = " line */
if (*lp_rootpreexec(snum)) {
pstring cmd;
pstrcpy(cmd,lp_rootpreexec(snum));
standard_sub_advanced(lp_servicename(SNUM(conn)), conn->user,
conn->connectpath, conn->gid,
get_current_username(),
current_user_info.domain,
cmd, sizeof(cmd));
DEBUG(5,("cmd=%s\n",cmd));
ret = smbrun(cmd,NULL);
if (ret != 0 && lp_rootpreexec_close(snum)) {
DEBUG(1,("root preexec gave %d - failing "
"connection\n", ret));
yield_connection(conn, lp_servicename(snum));
conn_free(conn);
*status = NT_STATUS_ACCESS_DENIED;
return NULL;
}
}
/* USER Activites: */
if (!change_to_user(conn, conn->vuid)) {
/* No point continuing if they fail the basic checks */
DEBUG(0,("Can't become connected user!\n"));
yield_connection(conn, lp_servicename(snum));
conn_free(conn);
*status = NT_STATUS_LOGON_FAILURE;
return NULL;
}
/* Remember that a different vuid can connect later without these
* checks... */
/* Preexecs are done here as they might make the dir we are to ChDir
* to below */
/* execute any "preexec = " line */
if (*lp_preexec(snum)) {
pstring cmd;
pstrcpy(cmd,lp_preexec(snum));
standard_sub_advanced(lp_servicename(SNUM(conn)), conn->user,
conn->connectpath, conn->gid,
get_current_username(),
current_user_info.domain,
cmd, sizeof(cmd));
ret = smbrun(cmd,NULL);
if (ret != 0 && lp_preexec_close(snum)) {
DEBUG(1,("preexec gave %d - failing connection\n",
ret));
change_to_root_user();
yield_connection(conn, lp_servicename(snum));
conn_free(conn);
*status = NT_STATUS_ACCESS_DENIED;
return NULL;
}
}
#ifdef WITH_FAKE_KASERVER
if (lp_afs_share(snum)) {
afs_login(conn);
}
#endif
/* Add veto/hide lists */
if (!IS_IPC(conn) && !IS_PRINT(conn)) {
set_namearray( &conn->veto_list, lp_veto_files(snum));
set_namearray( &conn->hide_list, lp_hide_files(snum));
set_namearray( &conn->veto_oplock_list, lp_veto_oplocks(snum));
}
/* Invoke VFS make connection hook - do this before the VFS_STAT call
to allow any filesystems needing user credentials to initialize
themselves. */
if (SMB_VFS_CONNECT(conn, lp_servicename(snum), user) < 0) {
DEBUG(0,("make_connection: VFS make connection failed!\n"));
change_to_root_user();
yield_connection(conn, lp_servicename(snum));
conn_free(conn);
*status = NT_STATUS_UNSUCCESSFUL;
return NULL;
}
/* win2000 does not check the permissions on the directory
during the tree connect, instead relying on permission
check during individual operations. To match this behaviour
I have disabled this chdir check (tridge) */
/* the alternative is just to check the directory exists */
if ((ret = SMB_VFS_STAT(conn, conn->connectpath, &st)) != 0 ||
!S_ISDIR(st.st_mode)) {
if (ret == 0 && !S_ISDIR(st.st_mode)) {
DEBUG(0,("'%s' is not a directory, when connecting to "
"[%s]\n", conn->connectpath,
lp_servicename(snum)));
} else {
DEBUG(0,("'%s' does not exist or permission denied "
"when connecting to [%s] Error was %s\n",
conn->connectpath, lp_servicename(snum),
strerror(errno) ));
}
change_to_root_user();
/* Call VFS disconnect hook */
SMB_VFS_DISCONNECT(conn);
yield_connection(conn, lp_servicename(snum));
conn_free(conn);
*status = NT_STATUS_BAD_NETWORK_NAME;
return NULL;
}
string_set(&conn->origpath,conn->connectpath);
mtime_ts = get_mtimespec(&st);
ctime_ts = get_ctimespec(&st);
atime_ts = get_atimespec(&st);
conn->ts_res = TIMESTAMP_SET_SECONDS;
if (mtime_ts.tv_nsec ||
atime_ts.tv_nsec ||
ctime_ts.tv_nsec) {
/* If any of the normal UNIX directory timestamps
* have a non-zero tv_nsec component assume
* we might be able to set sub-second timestamps.
* See what filetime set primitives we have.
*/
#if defined(HAVE_UTIMES)
/* utimes allows msec timestamps to be set. */
conn->ts_res = TIMESTAMP_SET_MSEC;
#elif defined(HAVE_UTIME)
/* utime only allows sec timestamps to be set. */
conn->ts_res = TIMESTAMP_SET_SECONDS;
#endif
/* TODO. Add a configure test for the Linux
* nsec timestamp set system call, and use it
* if available....
*/
DEBUG(10,("make_connection_snum: timestamp "
"resolution of %s "
"available on share %s, directory %s\n",
conn->ts_res == TIMESTAMP_SET_MSEC ? "msec" : "sec",
lp_servicename(conn->cnum),
conn->connectpath ));
}
#if SOFTLINK_OPTIMISATION
/* resolve any soft links early if possible */
if (vfs_ChDir(conn,conn->connectpath) == 0) {
pstring s;
pstrcpy(s,conn->connectpath);
vfs_GetWd(conn,s);
set_conn_connectpath(conn,s);
vfs_ChDir(conn,conn->connectpath);
}
#endif
if (lp_unix_extensions() && lp_widelinks(snum)) {
DEBUG(0,("Share '%s' has wide links and unix extensions enabled. "
"These parameters are incompatible. "
"Disabling wide links for this share.\n",
lp_servicename(snum) ));
lp_do_parameter(snum, "wide links", "False");
}
/*
* Print out the 'connected as' stuff here as we need
* to know the effective uid and gid we will be using
* (at least initially).
*/
if( DEBUGLVL( IS_IPC(conn) ? 3 : 1 ) ) {
dbgtext( "%s (%s) ", get_remote_machine_name(),
conn->client_address );
dbgtext( "%s", srv_is_signing_active() ? "signed " : "");
dbgtext( "connect to service %s ", lp_servicename(snum) );
dbgtext( "initially as user %s ", user );
dbgtext( "(uid=%d, gid=%d) ", (int)geteuid(), (int)getegid() );
dbgtext( "(pid %d)\n", (int)sys_getpid() );
}
/* we've finished with the user stuff - go back to root */
change_to_root_user();
return(conn);
}
NTSTATUS file_set_sparse(connection_struct *conn,
files_struct *fsp,
bool sparse)
{
uint32_t old_dosmode;
uint32_t new_dosmode;
NTSTATUS status;
if (!CAN_WRITE(conn)) {
DEBUG(9,("file_set_sparse: fname[%s] set[%u] "
"on readonly share[%s]\n",
smb_fname_str_dbg(fsp->fsp_name),
sparse,
lp_servicename(talloc_tos(), SNUM(conn))));
return NT_STATUS_MEDIA_WRITE_PROTECTED;
}
/*
* Windows Server 2008 & 2012 permit FSCTL_SET_SPARSE if any of the
* following access flags are granted.
*/
if ((fsp->access_mask & (FILE_WRITE_DATA
| FILE_WRITE_ATTRIBUTES
| SEC_FILE_APPEND_DATA)) == 0) {
DEBUG(9,("file_set_sparse: fname[%s] set[%u] "
"access_mask[0x%08X] - access denied\n",
smb_fname_str_dbg(fsp->fsp_name),
sparse,
fsp->access_mask));
return NT_STATUS_ACCESS_DENIED;
}
if (fsp->is_directory) {
DEBUG(9, ("invalid attempt to %s sparse flag on dir %s\n",
(sparse ? "set" : "clear"),
smb_fname_str_dbg(fsp->fsp_name)));
return NT_STATUS_INVALID_PARAMETER;
}
if (IS_IPC(conn) || IS_PRINT(conn)) {
DEBUG(9, ("attempt to %s sparse flag over invalid conn\n",
(sparse ? "set" : "clear")));
return NT_STATUS_INVALID_PARAMETER;
}
DEBUG(10,("file_set_sparse: setting sparse bit %u on file %s\n",
sparse, smb_fname_str_dbg(fsp->fsp_name)));
if (!lp_store_dos_attributes(SNUM(conn))) {
return NT_STATUS_INVALID_DEVICE_REQUEST;
}
status = vfs_stat_fsp(fsp);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
old_dosmode = dos_mode(conn, fsp->fsp_name);
if (sparse && !(old_dosmode & FILE_ATTRIBUTE_SPARSE)) {
new_dosmode = old_dosmode | FILE_ATTRIBUTE_SPARSE;
} else if (!sparse && (old_dosmode & FILE_ATTRIBUTE_SPARSE)) {
new_dosmode = old_dosmode & ~FILE_ATTRIBUTE_SPARSE;
} else {
return NT_STATUS_OK;
}
/* Store the DOS attributes in an EA. */
if (!set_ea_dos_attribute(conn, fsp->fsp_name,
new_dosmode)) {
if (errno == 0) {
errno = EIO;
}
return map_nt_error_from_unix(errno);
}
notify_fname(conn, NOTIFY_ACTION_MODIFIED,
FILE_NOTIFY_CHANGE_ATTRIBUTES,
fsp->fsp_name->base_name);
fsp->is_sparse = sparse;
return NT_STATUS_OK;
}
static struct tevent_req *smbd_smb2_ioctl_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
struct files_struct *fsp,
uint32_t in_ctl_code,
DATA_BLOB in_input,
uint32_t in_max_output,
uint32_t in_flags)
{
struct tevent_req *req;
struct smbd_smb2_ioctl_state *state;
struct smb_request *smbreq;
req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_ioctl_state);
if (req == NULL) {
return NULL;
}
state->smb2req = smb2req;
state->smbreq = NULL;
state->fsp = fsp;
state->in_input = in_input;
state->in_max_output = in_max_output;
state->out_output = data_blob_null;
DEBUG(10, ("smbd_smb2_ioctl: ctl_code[0x%08x] %s, %s\n",
(unsigned)in_ctl_code,
fsp ? fsp_str_dbg(fsp) : "<no handle>",
fsp_fnum_dbg(fsp)));
smbreq = smbd_smb2_fake_smb_request(smb2req);
if (tevent_req_nomem(smbreq, req)) {
return tevent_req_post(req, ev);
}
state->smbreq = smbreq;
switch (in_ctl_code & IOCTL_DEV_TYPE_MASK) {
case FSCTL_DFS:
return smb2_ioctl_dfs(in_ctl_code, ev, req, state);
break;
case FSCTL_FILESYSTEM:
return smb2_ioctl_filesys(in_ctl_code, ev, req, state);
break;
case FSCTL_NAMED_PIPE:
return smb2_ioctl_named_pipe(in_ctl_code, ev, req, state);
break;
case FSCTL_NETWORK_FILESYSTEM:
return smb2_ioctl_network_fs(in_ctl_code, ev, req, state);
break;
default:
if (IS_IPC(smbreq->conn)) {
tevent_req_nterror(req, NT_STATUS_FS_DRIVER_REQUIRED);
} else {
tevent_req_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
}
return tevent_req_post(req, ev);
break;
}
tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
return tevent_req_post(req, ev);
}
