merge upstream 3.4.0

git-svn-id: svn://svn.debian.org/svn/pkg-samba/trunk/samba@2936 fc4039ab-9d04-0410-8cac-899223bdd6b0

1 files changed, 152 insertions, 0 deletions

diff --git a/source3/smbd/fake_file.c b/source3/smbd/fake_file.c
new file mode 100644
index 0000000000..ef54398bc4
--- /dev/null
+++ b/source3/smbd/fake_file.c
@@ -0,0 +1,152 @@
+/* 
+   Unix SMB/CIFS implementation.
+   FAKE FILE suppport, for faking up special files windows want access to
+   Copyright (C) Stefan (metze) Metzmacher	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 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+struct fake_file_type {
+	const char *name;
+	enum FAKE_FILE_TYPE type;
+	void *(*init_pd)(TALLOC_CTX *mem_ctx);
+};
+
+static const struct fake_file_type fake_files[] = {
+#ifdef WITH_QUOTAS
+	{FAKE_FILE_NAME_QUOTA_UNIX, FAKE_FILE_TYPE_QUOTA, init_quota_handle},
+#endif /* WITH_QUOTAS */
+	{NULL, FAKE_FILE_TYPE_NONE, NULL}
+};
+
+/****************************************************************************
+ Create a fake file handle
+****************************************************************************/
+
+static struct fake_file_handle *init_fake_file_handle(enum FAKE_FILE_TYPE type)
+{
+	struct fake_file_handle *fh = NULL;
+	int i;
+
+	for (i=0; fake_files[i].name!=NULL; i++) {
+		if (fake_files[i].type==type) {
+			break;
+		}
+	}
+
+	if (fake_files[i].name == NULL) {
+		return NULL;
+	}
+
+	DEBUG(5,("init_fake_file_handle: for [%s]\n",fake_files[i].name));
+
+	fh = talloc(NULL, struct fake_file_handle);
+	if (fh == NULL) {
+		DEBUG(0,("TALLOC_ZERO() failed.\n"));
+		return NULL;
+	}
+
+	fh->type = type;
+
+	if (fake_files[i].init_pd) {
+		fh->private_data = fake_files[i].init_pd(fh);
+	}
+	return fh;
+}
+
+/****************************************************************************
+ Does this name match a fake filename ?
+****************************************************************************/
+
+enum FAKE_FILE_TYPE is_fake_file(const char *fname)
+{
+#ifdef HAVE_SYS_QUOTAS
+	int i;
+#endif
+
+	if (!fname) {
+		return FAKE_FILE_TYPE_NONE;
+	}
+
+#ifdef HAVE_SYS_QUOTAS
+	for (i=0;fake_files[i].name!=NULL;i++) {
+		if (strncmp(fname,fake_files[i].name,strlen(fake_files[i].name))==0) {
+			DEBUG(5,("is_fake_file: [%s] is a fake file\n",fname));
+			return fake_files[i].type;
+		}
+	}
+#endif
+
+	return FAKE_FILE_TYPE_NONE;
+}
+
+
+/****************************************************************************
+ Open a fake quota file with a share mode.
+****************************************************************************/
+
+NTSTATUS open_fake_file(struct smb_request *req, connection_struct *conn,
+				uint16_t current_vuid,
+				enum FAKE_FILE_TYPE fake_file_type,
+				const char *fname,
+				uint32 access_mask,
+				files_struct **result)
+{
+	files_struct *fsp = NULL;
+	NTSTATUS status;
+
+	/* access check */
+	if (conn->server_info->utok.uid != 0) {
+		DEBUG(3, ("open_fake_file_shared: access_denied to "
+			  "service[%s] file[%s] user[%s]\n",
+			  lp_servicename(SNUM(conn)), fname,
+			  conn->server_info->unix_name));
+		return NT_STATUS_ACCESS_DENIED;
+
+	}
+
+	status = file_new(req, conn, &fsp);
+	if(!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	DEBUG(5,("open_fake_file_shared: fname = %s, FID = %d, access_mask = 0x%x\n",
+		fname, fsp->fnum, (unsigned int)access_mask));
+
+	fsp->conn = conn;
+	fsp->fh->fd = -1;
+	fsp->vuid = current_vuid;
+	fsp->fh->pos = -1;
+	fsp->can_lock = False; /* Should this be true ? - No, JRA */
+	fsp->access_mask = access_mask;
+	string_set(&fsp->fsp_name,fname);
+	
+	fsp->fake_file_handle = init_fake_file_handle(fake_file_type);
+	
+	if (fsp->fake_file_handle==NULL) {
+		file_free(req, fsp);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	*result = fsp;
+	return NT_STATUS_OK;
+}
+
+NTSTATUS close_fake_file(struct smb_request *req, files_struct *fsp)
+{
+	file_free(req, fsp);
+	return NT_STATUS_OK;
+}