r11786: move all SMB protocol specific stuff to smb_server/smb/

metze
(This used to be commit 5fea278cb65076cea71bb6c921e51c4feffc37d7)

1 files changed, 194 insertions, 0 deletions

diff --git a/source4/smb_server/smb/service.c b/source4/smb_server/smb/service.c
new file mode 100644
index 0000000000..213cf6726b
--- /dev/null
+++ b/source4/smb_server/smb/service.c
@@ -0,0 +1,194 @@
+/* 
+   Unix SMB/CIFS implementation.
+   service (connection) handling
+   Copyright (C) Andrew Tridgell 1992-2003
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "smb_server/smb_server.h"
+#include "smbd/service_stream.h"
+
+
+/**
+ * Find a service entry. service is always in dos codepage.
+ *
+ * @param service is modified (to canonical form??)
+ **/
+static int find_service(const char *service)
+{
+	int iService;
+
+	iService = lp_servicenumber(service);
+
+	if (iService >= 0 && !lp_snum_ok(iService)) {
+		DEBUG(0,("Invalid snum %d for %s\n",iService, service));
+		iService = -1;
+	}
+
+	if (iService == -1) {
+		DEBUG(3,("find_service() failed to find service %s\n", service));
+	}
+
+	return iService;
+}
+
+
+/****************************************************************************
+  Make a connection, given the snum to connect to, and the vuser of the
+  connecting user if appropriate.
+****************************************************************************/
+static NTSTATUS make_connection_snum(struct smbsrv_request *req,
+				     int snum, enum ntvfs_type type,
+				     DATA_BLOB password, 
+				     const char *dev)
+{
+	struct smbsrv_tcon *tcon;
+	NTSTATUS status;
+
+	if (!socket_check_access(req->smb_conn->connection->socket, 
+				 lp_servicename(snum), 
+				 lp_hostsallow(snum), 
+				 lp_hostsdeny(snum))) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	tcon = smbsrv_tcon_new(req->smb_conn);
+	if (!tcon) {
+		DEBUG(0,("Couldn't find free connection.\n"));
+		return NT_STATUS_INSUFFICIENT_RESOURCES;
+	}
+	req->tcon = tcon;
+
+	tcon->service = snum;
+
+	/* init ntvfs function pointers */
+	status = ntvfs_init_connection(req, type);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0, ("ntvfs_init_connection failed for service %s\n", 
+			  lp_servicename(tcon->service)));
+		req->tcon = NULL;
+		talloc_free(tcon);
+		return status;
+	}
+
+	/* Invoke NTVFS connection hook */
+	status = ntvfs_connect(req, lp_servicename(snum));
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0,("make_connection: NTVFS make connection failed!\n"));
+		req->tcon = NULL;
+		talloc_free(tcon);
+		return status;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Make a connection to a service.
+ *
+ * @param service 
+****************************************************************************/
+static NTSTATUS make_connection(struct smbsrv_request *req,
+				const char *service, DATA_BLOB password, 
+				const char *dev)
+{
+	int snum;
+	enum ntvfs_type type;
+	const char *type_str;
+
+	/* TODO: check the password, when it's share level security! */
+
+	/* the service might be of the form \\SERVER\SHARE. Should we put
+	   the server name we get from this somewhere? */
+	if (strncmp(service, "\\\\", 2) == 0) {
+		char *p = strchr(service+2, '\\');
+		if (p) {
+			service = p + 1;
+		}
+	}
+
+	snum = find_service(service);
+
+	if (snum == -1) {
+		DEBUG(0,("couldn't find service %s\n", service));
+		return NT_STATUS_BAD_NETWORK_NAME;
+	}
+
+	/* work out what sort of connection this is */
+	if (strcmp(lp_fstype(snum), "IPC") == 0) {
+		type = NTVFS_IPC;
+		type_str = "IPC";
+	} else if (lp_print_ok(snum)) {
+		type = NTVFS_PRINT;
+		type_str = "LPT:";
+	} else {
+		type = NTVFS_DISK;
+		type_str = "A:";
+	}
+
+	if (strcmp(dev, "?????") != 0 && strcasecmp(type_str, dev) != 0) {
+		/* the client gave us the wrong device type */
+		return NT_STATUS_BAD_DEVICE_TYPE;
+	}
+
+	return make_connection_snum(req, snum, type, password, dev);
+}
+
+/*
+  backend for tree connect call
+*/
+NTSTATUS tcon_backend(struct smbsrv_request *req, union smb_tcon *con)
+{
+	NTSTATUS status;
+
+	/* can only do bare tcon in share level security */
+	if (!req->session && lp_security() != SEC_SHARE) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	if (con->generic.level == RAW_TCON_TCON) {
+		DATA_BLOB password;
+		password = data_blob(con->tcon.in.password, strlen(con->tcon.in.password) + 1);
+
+		status = make_connection(req, con->tcon.in.service, password, con->tcon.in.dev);
+		
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+
+		con->tcon.out.max_xmit = req->smb_conn->negotiate.max_recv;
+		con->tcon.out.tid = req->tcon->tid;
+
+		return status;
+	} 
+
+	status = make_connection(req, con->tconx.in.path, con->tconx.in.password, 
+				 con->tconx.in.device);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	con->tconx.out.tid = req->tcon->tid;
+	con->tconx.out.dev_type = talloc_strdup(req, req->tcon->dev_type);
+	con->tconx.out.fs_type = talloc_strdup(req, req->tcon->fs_type);
+	con->tconx.out.options = SMB_SUPPORT_SEARCH_BITS | (lp_csc_policy(req->tcon->service) << 2);
+	if (lp_msdfs_root(req->tcon->service) && lp_host_msdfs()) {
+		con->tconx.out.options |= SMB_SHARE_IN_DFS;
+	}
+
+	return status;
+}