r19002: Add a very simple synchronisation function to download the full GPO.

Guenther
(This used to be commit 02b75ff2a833677df3448b0f9a4928cb3f0274de)

1 files changed, 224 insertions, 0 deletions

diff --git a/source3/libgpo/gpo_filesync.c b/source3/libgpo/gpo_filesync.c
new file mode 100644
index 0000000000..36c538dc51
--- /dev/null
+++ b/source3/libgpo/gpo_filesync.c
@@ -0,0 +1,224 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Group Policy Object Support
+ *  Copyright (C) Guenther Deschner 2006
+ *  
+ *  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"
+
+struct sync_context {
+	TALLOC_CTX *mem_ctx;
+	struct cli_state *cli;
+	char *remote_path;
+	char *local_path;
+	pstring mask;
+	uint16 attribute;
+};
+
+static void gpo_sync_func(const char *mnt,
+			   file_info *info,
+			   const char *mask,
+			   void *state);
+
+NTSTATUS gpo_copy_file(TALLOC_CTX *mem_ctx,
+		       struct cli_state *cli,
+		       const char *nt_path,
+		       const char *unix_path)
+{
+	NTSTATUS result;
+	int fnum, fd;
+	char *data = NULL;
+	static int io_bufsize = 64512;
+	int read_size = io_bufsize;
+	off_t start = 0;
+	off_t nread = 0;
+
+	if ((fnum = cli_open(cli, nt_path, O_RDONLY, DENY_NONE)) == -1) {
+		result = NT_STATUS_NO_SUCH_FILE;
+		goto out;
+	}
+
+	if ((fd = sys_open(unix_path, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) {
+		result = map_nt_error_from_unix(errno);
+		goto out;
+	}
+	 
+	if ((data = (char *)SMB_MALLOC(read_size)) == NULL) {
+		result = NT_STATUS_NO_MEMORY;
+		goto out;
+	}
+
+	while (1) {
+
+		int n = cli_read(cli, fnum, data, nread + start, read_size);
+
+		if (n <= 0)
+			break;
+
+		if (write(fd, data, n) != n) {
+			break;
+		}
+
+		nread += n;
+	}
+
+	result = NT_STATUS_OK;
+
+ out:
+	SAFE_FREE(data);
+	if (fnum) {
+		cli_close(cli, fnum);
+	}
+	if (fd) {
+		close(fd);
+	}
+
+	return result;
+}
+
+/****************************************************************
+ copy dir
+****************************************************************/
+
+static NTSTATUS gpo_copy_dir(const char *unix_path)
+{
+	if ((mkdir(unix_path, 0644)) < 0 && errno != EEXIST) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+ sync files
+****************************************************************/
+
+static BOOL gpo_sync_files(struct sync_context *ctx)
+{
+	DEBUG(3,("calling cli_list with mask: %s\n", ctx->mask));
+
+	if (cli_list(ctx->cli, ctx->mask, ctx->attribute, gpo_sync_func, ctx) == -1) {
+		DEBUG(1,("listing [%s] failed with error: %s\n", 
+			ctx->mask, cli_errstr(ctx->cli)));
+		return False;
+	}
+
+	return True;
+}
+
+/****************************************************************
+ syncronisation call back
+****************************************************************/
+
+static void gpo_sync_func(const char *mnt,
+			  file_info *info,
+			  const char *mask,
+			  void *state)
+{
+	NTSTATUS result;
+	struct sync_context *ctx;
+	fstring nt_filename, unix_filename;
+	fstring nt_dir, unix_dir;
+	char *old_nt_dir, *old_unix_dir;
+
+	ctx = (struct sync_context *)state;
+
+	if (strequal(info->name, ".") || strequal(info->name, "..")) {
+		return;
+	}
+
+	DEBUG(5,("gpo_sync_func: got mask: [%s], name: [%s]\n", 
+		mask, info->name));
+
+	if (info->mode & aDIR) {
+
+		DEBUG(3,("got dir: [%s]\n", info->name));
+
+		fstrcpy(nt_dir, ctx->remote_path);
+		fstrcat(nt_dir, "\\");
+		fstrcat(nt_dir, info->name);
+
+		fstrcpy(unix_dir, ctx->local_path);
+		fstrcat(unix_dir, "/");
+		fstrcat(unix_dir, info->name);
+
+		result = gpo_copy_dir(unix_dir);
+		if (!NT_STATUS_IS_OK(result)) {
+			DEBUG(1,("failed to copy dir: %s\n", nt_errstr(result)));
+		}
+
+		old_nt_dir = ctx->remote_path;
+		ctx->remote_path = nt_dir;
+		
+		old_unix_dir = ctx->local_path;
+		ctx->local_path = talloc_strdup(ctx->mem_ctx, unix_dir);
+
+		pstrcpy(ctx->mask, nt_dir);
+		pstrcat(ctx->mask, "\\*");
+
+		if (!gpo_sync_files(ctx)) {
+			DEBUG(0,("could not sync files\n"));
+		}
+
+		ctx->remote_path = old_nt_dir;
+		ctx->local_path = old_unix_dir;
+		return;
+	}
+
+	DEBUG(3,("got file: [%s]\n", info->name));
+
+	fstrcpy(nt_filename, ctx->remote_path);
+	fstrcat(nt_filename, "\\");
+	fstrcat(nt_filename, info->name);
+
+	fstrcpy(unix_filename, ctx->local_path);
+	fstrcat(unix_filename, "/");
+	fstrcat(unix_filename, info->name);
+
+	result = gpo_copy_file(ctx->mem_ctx, ctx->cli, nt_filename, unix_filename);
+	if (!NT_STATUS_IS_OK(result)) {
+		DEBUG(1,("failed to copy file: %s\n", nt_errstr(result)));
+	}
+}
+
+
+/****************************************************************
+ list a remote directory and download recursivly
+****************************************************************/
+
+NTSTATUS gpo_sync_directories(TALLOC_CTX *mem_ctx, 
+			      struct cli_state *cli, 
+			      const char *nt_path, 
+			      const char *local_path)
+{
+	struct sync_context ctx;
+
+	ctx.mem_ctx 	= mem_ctx;
+	ctx.cli 	= cli;
+	ctx.remote_path	= CONST_DISCARD(char *, nt_path);
+	ctx.local_path	= CONST_DISCARD(char *, local_path);
+	ctx.attribute 	= (aSYSTEM | aHIDDEN | aDIR);
+
+	pstrcpy(ctx.mask, nt_path);
+	pstrcat(ctx.mask, "\\*");
+
+	if (!gpo_sync_files(&ctx)) {
+		return NT_STATUS_NO_SUCH_FILE;
+	}
+
+	return NT_STATUS_OK;
+}