source: trunk/server/source3/libgpo/gpo_filesync.c

Last change on this file was 745, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated trunk to 3.6.0
File size: 6.0 KB
Line 
1/*
2 * Unix SMB/CIFS implementation.
3 * Group Policy Object Support
4 * Copyright (C) Guenther Deschner 2006
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include "includes.h"
21#include "system/filesys.h"
22#include "libsmb/libsmb.h"
23#include "../libgpo/gpo.h"
24#include "libgpo/gpo_proto.h"
25
26struct sync_context {
27 TALLOC_CTX *mem_ctx;
28 struct cli_state *cli;
29 char *remote_path;
30 char *local_path;
31 char *mask;
32 uint16_t attribute;
33};
34
35static NTSTATUS gpo_sync_func(const char *mnt,
36 struct file_info *info,
37 const char *mask,
38 void *state);
39
40NTSTATUS gpo_copy_file(TALLOC_CTX *mem_ctx,
41 struct cli_state *cli,
42 const char *nt_path,
43 const char *unix_path)
44{
45 NTSTATUS result;
46 uint16_t fnum;
47 int fd = -1;
48 char *data = NULL;
49 static int io_bufsize = 64512;
50 int read_size = io_bufsize;
51 off_t nread = 0;
52
53 result = cli_open(cli, nt_path, O_RDONLY, DENY_NONE, &fnum);
54 if (!NT_STATUS_IS_OK(result)) {
55 goto out;
56 }
57
58 if ((fd = sys_open(unix_path, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) {
59 result = map_nt_error_from_unix(errno);
60 goto out;
61 }
62
63 if ((data = (char *)SMB_MALLOC(read_size)) == NULL) {
64 result = NT_STATUS_NO_MEMORY;
65 goto out;
66 }
67
68 while (1) {
69
70 int n = cli_read(cli, fnum, data, nread, read_size);
71
72 if (n <= 0)
73 break;
74
75 if (write(fd, data, n) != n) {
76 break;
77 }
78
79 nread += n;
80 }
81
82 result = NT_STATUS_OK;
83
84 out:
85 SAFE_FREE(data);
86 if (fnum) {
87 cli_close(cli, fnum);
88 }
89 if (fd != -1) {
90 close(fd);
91 }
92
93 return result;
94}
95
96/****************************************************************
97 copy dir
98****************************************************************/
99
100static NTSTATUS gpo_copy_dir(const char *unix_path)
101{
102 if ((mkdir(unix_path, 0644)) < 0 && errno != EEXIST) {
103 return map_nt_error_from_unix(errno);
104 }
105
106 return NT_STATUS_OK;
107}
108
109/****************************************************************
110 sync files
111****************************************************************/
112
113static NTSTATUS gpo_sync_files(struct sync_context *ctx)
114{
115 NTSTATUS status;
116
117 DEBUG(3,("calling cli_list with mask: %s\n", ctx->mask));
118
119 status = cli_list(ctx->cli, ctx->mask, ctx->attribute, gpo_sync_func,
120 ctx);
121 if (!NT_STATUS_IS_OK(status)) {
122 DEBUG(1, ("listing [%s] failed with error: %s\n",
123 ctx->mask, nt_errstr(status)));
124 return status;
125 }
126
127 return status;
128}
129
130/****************************************************************
131 syncronisation call back
132****************************************************************/
133
134static NTSTATUS gpo_sync_func(const char *mnt,
135 struct file_info *info,
136 const char *mask,
137 void *state)
138{
139 NTSTATUS result;
140 struct sync_context *ctx;
141 fstring nt_filename, unix_filename;
142 fstring nt_dir, unix_dir;
143 char *old_nt_dir, *old_unix_dir;
144
145 ctx = (struct sync_context *)state;
146
147 if (strequal(info->name, ".") || strequal(info->name, "..")) {
148 return NT_STATUS_OK;
149 }
150
151 DEBUG(5,("gpo_sync_func: got mask: [%s], name: [%s]\n",
152 mask, info->name));
153
154 if (info->mode & FILE_ATTRIBUTE_DIRECTORY) {
155
156 DEBUG(3,("got dir: [%s]\n", info->name));
157
158 fstrcpy(nt_dir, ctx->remote_path);
159 fstrcat(nt_dir, "\\");
160 fstrcat(nt_dir, info->name);
161
162 fstrcpy(unix_dir, ctx->local_path);
163 fstrcat(unix_dir, "/");
164 fstrcat(unix_dir, info->name);
165
166 result = gpo_copy_dir(unix_dir);
167 if (!NT_STATUS_IS_OK(result)) {
168 DEBUG(1,("failed to copy dir: %s\n",
169 nt_errstr(result)));
170 return result;
171 }
172
173 old_nt_dir = ctx->remote_path;
174 ctx->remote_path = talloc_strdup(ctx->mem_ctx, nt_dir);
175
176 old_unix_dir = ctx->local_path;
177 ctx->local_path = talloc_strdup(ctx->mem_ctx, unix_dir);
178
179 ctx->mask = talloc_asprintf(ctx->mem_ctx,
180 "%s\\*",
181 nt_dir);
182 if (!ctx->local_path || !ctx->mask || !ctx->remote_path) {
183 DEBUG(0,("gpo_sync_func: ENOMEM\n"));
184 return NT_STATUS_NO_MEMORY;
185 }
186 result = gpo_sync_files(ctx);
187 if (!NT_STATUS_IS_OK(result)) {
188 DEBUG(0,("could not sync files\n"));
189 return result;
190 }
191
192 ctx->remote_path = old_nt_dir;
193 ctx->local_path = old_unix_dir;
194 return NT_STATUS_OK;
195 }
196
197 DEBUG(3,("got file: [%s]\n", info->name));
198
199 fstrcpy(nt_filename, ctx->remote_path);
200 fstrcat(nt_filename, "\\");
201 fstrcat(nt_filename, info->name);
202
203 fstrcpy(unix_filename, ctx->local_path);
204 fstrcat(unix_filename, "/");
205 fstrcat(unix_filename, info->name);
206
207 result = gpo_copy_file(ctx->mem_ctx, ctx->cli,
208 nt_filename, unix_filename);
209 if (!NT_STATUS_IS_OK(result)) {
210 DEBUG(1,("failed to copy file: %s\n",
211 nt_errstr(result)));
212 }
213 return result;
214}
215
216
217/****************************************************************
218 list a remote directory and download recursivly
219****************************************************************/
220
221NTSTATUS gpo_sync_directories(TALLOC_CTX *mem_ctx,
222 struct cli_state *cli,
223 const char *nt_path,
224 const char *local_path)
225{
226 struct sync_context ctx;
227
228 ctx.mem_ctx = mem_ctx;
229 ctx.cli = cli;
230 ctx.remote_path = CONST_DISCARD(char *, nt_path);
231 ctx.local_path = CONST_DISCARD(char *, local_path);
232 ctx.attribute = (FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_DIRECTORY);
233
234 ctx.mask = talloc_asprintf(mem_ctx,
235 "%s\\*",
236 nt_path);
237 if (!ctx.mask) {
238 return NT_STATUS_NO_MEMORY;
239 }
240
241 return gpo_sync_files(&ctx);
242}
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