static connection_struct *make_connection_smb1(struct smb_request *req,
NTTIME now,
int snum, struct user_struct *vuser,
const char *pdev,
NTSTATUS *pstatus)
{
struct smbXsrv_tcon *tcon;
NTSTATUS status;
struct connection_struct *conn;
status = smb1srv_tcon_create(req->xconn, now, &tcon);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("make_connection_smb1: Couldn't find free tcon %s.\n",
nt_errstr(status)));
*pstatus = status;
return NULL;
}
conn = conn_new(req->sconn);
if (!conn) {
TALLOC_FREE(tcon);
DEBUG(0,("make_connection_smb1: Couldn't find free connection.\n"));
*pstatus = NT_STATUS_INSUFFICIENT_RESOURCES;
return NULL;
}
conn->cnum = tcon->global->tcon_wire_id;
conn->tcon = tcon;
*pstatus = make_connection_snum(req->xconn,
conn,
snum,
vuser,
pdev);
if (!NT_STATUS_IS_OK(*pstatus)) {
conn_free(conn);
TALLOC_FREE(tcon);
return NULL;
}
tcon->global->share_name = lp_servicename(tcon->global, SNUM(conn));
if (tcon->global->share_name == NULL) {
conn_free(conn);
TALLOC_FREE(tcon);
*pstatus = NT_STATUS_NO_MEMORY;
return NULL;
}
tcon->global->session_global_id =
vuser->session->global->session_global_id;
tcon->compat = talloc_move(tcon, &conn);
tcon->status = NT_STATUS_OK;
*pstatus = smbXsrv_tcon_update(tcon);
if (!NT_STATUS_IS_OK(*pstatus)) {
TALLOC_FREE(tcon);
return NULL;
}
return tcon->compat;
}
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;
}
