first public release of samba4 code

(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)

1 files changed, 151 insertions, 0 deletions

diff --git a/source4/ntvfs/posix/vfs_posix.c b/source4/ntvfs/posix/vfs_posix.c
new file mode 100644
index 0000000000..b27e7493a0
--- /dev/null
+++ b/source4/ntvfs/posix/vfs_posix.c
@@ -0,0 +1,151 @@
+/* 
+   Unix SMB/CIFS implementation.
+   POSIX NTVFS backend
+   Copyright (C) Andrew Tridgell 1992-2003
+   Copyright (C) Andrew Bartlett      2001
+
+   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.
+*/
+/*
+  this implements most of the POSIX NTVFS backend
+  This is the default backend
+*/
+
+#include "includes.h"
+
+/*
+  connect to a share - used when a tree_connect operation comes
+  in. For a disk based backend we needs to ensure that the base
+  directory exists (tho it doesn't need to be accessible by the user,
+  that comes later)
+*/
+static NTSTATUS pvfs_connect(struct ntvfs_context *ctx, const char *sharename)
+{
+	struct stat st;
+	struct connection_struct *conn = ctx->conn;
+	NTSTATUS status;
+
+	/* the directory must exist */
+	if (stat(conn->connectpath, &st) != 0 || !S_ISDIR(st.st_mode)) {
+		DEBUG(0,("'%s' is not a directory, when connecting to [%s]\n", 
+			 conn->connectpath, lp_servicename(SNUM(conn))));
+		return NT_STATUS_BAD_NETWORK_NAME;
+	}
+
+	/* Initialise old VFS function pointers */
+	if (!smbd_vfs_init(conn)) {
+		DEBUG(0, ("vfs_init failed for service %s\n", lp_servicename(SNUM(conn))));
+		return NT_STATUS_BAD_NETWORK_NAME;
+	}
+
+	/* become the user for the rest */
+	status = ntvfs_change_to_user(ctx);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* the posix backend can do preexec */
+	status = ntvfs_connect_preexec(ctx);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* Invoke the old POSIX VFS make connection hook */
+	if (conn->vfs_ops.connect && 
+	    conn->vfs_ops.connect(conn, lp_servicename(snum), user) < 0) {
+			DEBUG(0,("make_connection: POSIX VFS make connection failed!\n"));
+			return NT_STATUS_UNSUCCESSFUL;
+		}
+	}
+
+
+	/*
+	 * 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( "connect to service %s ", lp_servicename(SNUM(conn)) );
+		dbgtext( "initially as user %s ", user );
+		dbgtext( "(uid=%d, gid=%d) ", (int)geteuid(), (int)getegid() );
+		dbgtext( "(pid %d)\n", (int)sys_getpid() );
+	}
+	
+	return NT_STATUS_OK;
+}
+
+/*
+  disconnect from a share
+*/
+static NTSTATUS pvfs_disconnect(struct ntvfs_context *ctx)
+{
+	return NT_STATUS_OK;
+}
+
+/*
+  delete a file - the dirtype specifies the file types to include in the search. 
+  The name can contain CIFS wildcards, but rarely does (except with OS/2 clients)
+*/
+static NTSTATUS pvfs_unlink(struct ntvfs_context *ctx, const char *name, uint16 dirtype)
+{
+	NTSTATUS status;
+
+	if (ntvfs_dfs_redirect(ctx, name)) {
+		return NT_STATUS_PATH_NOT_COVERED;
+	}
+	
+	status = unlink_internals(ctx->conn, dirtype, name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	ntvfs_run_change_notify_queue();
+	
+	return NT_STATUS_OK;
+}
+
+
+
+
+
+
+
+/*
+  initialialise the POSIX disk backend, registering ourselves with the ntvfs subsystem
+ */
+BOOL posix_vfs_init(void)
+{
+	BOOL ret;
+	struct ntvfs_ops ops;
+
+	ZERO_STRUCT(ops);
+	
+	/* fill in all the operations */
+	ops.connect = pvfs_connect;
+	ops.disconnect = pvfs_disconnect;
+	ops.unlink = pvfs_unlink;
+
+	/* register ourselves with the NTVFS subsystem. We register under the name 'default'
+	   as we wish to be the default backend */
+	ret = ntvfs_register("default", NTVFS_DISK, &ops);
+
+	if (!ret) {
+		DEBUG(0,("Failed to register POSIX backend!\n"));
+		return False;
+	}
+
+	return True;
+}