Commit | Line | Data |
---|---|---|
bbdff76a WD |
1 | Depends-On-Patch: acls.diff |
2 | ||
3 | After applying this patch, run these commands for a successful build: | |
4 | ||
5 | autoconf | |
6 | autoheader | |
f787c90c | 7 | ./configure --enable-acl-support --enable-xattr-support |
bbdff76a WD |
8 | make proto |
9 | make | |
10 | ||
4bf6f8c7 WD |
11 | --- orig/Makefile.in 2005-07-07 23:11:55 |
12 | +++ Makefile.in 2005-07-07 23:15:20 | |
13 | @@ -27,13 +27,13 @@ VERSION=@VERSION@ | |
bbdff76a WD |
14 | |
15 | HEADERS=byteorder.h config.h errcode.h proto.h rsync.h smb_acls.h lib/pool_alloc.h | |
16 | LIBOBJ=lib/wildmatch.o lib/compat.o lib/snprintf.o lib/mdfour.o \ | |
17 | - lib/permstring.o lib/pool_alloc.o lib/sysacls.o @LIBOBJS@ | |
18 | + lib/permstring.o lib/pool_alloc.o lib/sysacls.o lib/sysxattr.o @LIBOBJS@ | |
4bf6f8c7 WD |
19 | ZLIBOBJ=zlib/deflate.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o \ |
20 | zlib/trees.o zlib/zutil.o zlib/adler32.o zlib/compress.o zlib/crc32.o | |
bbdff76a WD |
21 | OBJS1=rsync.o generator.o receiver.o cleanup.o sender.o exclude.o util.o \ |
22 | main.o checksum.o match.o syscall.o log.o backup.o | |
23 | OBJS2=options.o flist.o io.o compat.o hlink.o token.o uidlist.o socket.o \ | |
24 | - fileio.o batch.o clientname.o acls.o | |
25 | + fileio.o batch.o clientname.o acls.o xattr.o | |
26 | OBJS3=progress.o pipe.o | |
27 | DAEMON_OBJ = params.o loadparm.o clientserver.o access.o connection.o authenticate.o | |
28 | popt_OBJS=popt/findme.o popt/popt.o popt/poptconfig.o \ | |
29 | --- orig/backup.c 2004-10-06 00:13:09 | |
30 | +++ backup.c 2005-03-03 01:20:46 | |
31 | @@ -136,6 +136,7 @@ static int make_bak_dir(char *fullpath) | |
32 | do_lchown(fullpath, st.st_uid, st.st_gid); | |
33 | do_chmod(fullpath, st.st_mode); | |
34 | (void)DUP_ACL(end, fullpath, st.st_mode); | |
35 | + (void)DUP_XATTR(end, fullpath ); | |
36 | } | |
37 | } | |
38 | *p = '/'; | |
39 | @@ -189,6 +190,7 @@ static int keep_backup(char *fname) | |
40 | return 0; | |
41 | ||
42 | PUSH_KEEP_BACKUP_ACL(file, fname, buf); | |
43 | + PUSH_KEEP_BACKUP_XATTR(file, fname, buf); | |
44 | ||
45 | /* Check to see if this is a device file, or link */ | |
4bf6f8c7 WD |
46 | if (IS_DEVICE(file->mode) && am_root && preserve_devices) { |
47 | @@ -265,6 +267,7 @@ static int keep_backup(char *fname) | |
bbdff76a WD |
48 | } |
49 | set_perms(buf, file, NULL, 0); | |
50 | CLEANUP_KEEP_BACKUP_ACL(); | |
51 | + CLEANUP_KEEP_BACKUP_XATTR(); | |
52 | free(file); | |
53 | ||
54 | if (verbose > 1) { | |
55 | --- orig/configure.in 2004-08-19 19:53:27 | |
56 | +++ configure.in 2005-05-12 22:57:53 | |
489b0a72 | 57 | @@ -822,6 +822,30 @@ samba_cv_HAVE_ACL_GET_PERM_NP=yes,samba_ |
bbdff76a WD |
58 | AC_MSG_RESULT(no) |
59 | ) | |
60 | ||
61 | +AC_CHECK_HEADERS(attr/xattr.h) | |
62 | +AC_MSG_CHECKING(whether to support extended attributes) | |
f787c90c WD |
63 | +AC_ARG_ENABLE(xattr-support, |
64 | +AC_HELP_STRING([--enable-xattr-support], [Include extended attribute support (default=no)]), | |
bbdff76a WD |
65 | +[ case "$withval" in |
66 | + yes) | |
67 | + case "$host_os" in | |
68 | + *linux*) | |
69 | + AC_MSG_RESULT(Using Linux xattrs) | |
70 | + AC_DEFINE(HAVE_LINUX_XATTRS, 1, [True if you have Linux xattrs]) | |
71 | + ;; | |
72 | + *) | |
73 | + AC_MSG_RESULT(Xattrs requested but not linux. Good luck) | |
74 | + ;; | |
75 | + esac | |
76 | + ;; | |
77 | + *) | |
78 | + AC_MSG_RESULT(no) | |
79 | + AC_DEFINE(HAVE_NA_XATTRS, 1, [True if you don't have extended attributes]) | |
80 | + esac ], | |
81 | + AC_MSG_RESULT(no) | |
82 | + AC_DEFINE(HAVE_NO_XATTRL, 1, [True if you don't have extended attributes]) | |
83 | +) | |
84 | + | |
85 | AC_CONFIG_FILES([Makefile lib/dummy zlib/dummy popt/dummy shconfig]) | |
86 | AC_OUTPUT | |
87 | ||
489b0a72 | 88 | --- orig/flist.c 2005-07-29 02:49:06 |
bbdff76a | 89 | +++ flist.c 2005-05-12 22:55:41 |
f787c90c | 90 | @@ -970,6 +970,8 @@ static struct file_struct *send_file_nam |
bbdff76a | 91 | return NULL; |
489b0a72 | 92 | if (MAKE_ACL(file, fname) < 0) |
bbdff76a WD |
93 | return NULL; |
94 | + if (!MAKE_XATTR(file, fname)) | |
95 | + return NULL; | |
96 | ||
97 | maybe_emit_filelist_progress(flist->count + flist_count_offset); | |
98 | ||
f787c90c | 99 | @@ -979,9 +981,11 @@ static struct file_struct *send_file_nam |
bbdff76a WD |
100 | flist->files[flist->count++] = file; |
101 | send_file_entry(file, f, base_flags); | |
102 | SEND_ACL(file, f); | |
103 | + SEND_XATTR(file, f); | |
104 | } else { | |
105 | /* Cleanup unsent ACL(s). */ | |
106 | SEND_ACL(file, -1); | |
107 | + SEND_XATTR(file, -1); | |
108 | } | |
109 | return file; | |
110 | } | |
f787c90c | 111 | @@ -1328,6 +1332,7 @@ struct file_list *recv_file_list(int f) |
bbdff76a WD |
112 | file = receive_file_entry(flist, flags, f); |
113 | ||
114 | RECEIVE_ACL(file, f); | |
115 | + RECEIVE_XATTR(file, f ); | |
116 | ||
117 | if (S_ISREG(file->mode)) | |
118 | stats.total_size += file->length; | |
f787c90c | 119 | @@ -1352,6 +1357,7 @@ struct file_list *recv_file_list(int f) |
bbdff76a WD |
120 | clean_flist(flist, relative_paths, 1); |
121 | ||
122 | SORT_FILE_ACL_INDEX_LISTS(); | |
123 | + SORT_FILE_XATTR_INDEX_LISTS(); | |
124 | ||
125 | if (f >= 0) { | |
126 | /* Now send the uid/gid list. This was introduced in | |
127 | --- orig/generator.c 2005-05-12 23:34:00 | |
128 | +++ generator.c 2005-05-12 23:21:08 | |
489b0a72 | 129 | @@ -729,6 +729,10 @@ static void recv_generator(char *fname, |
bbdff76a WD |
130 | if (f_out == -1) |
131 | SET_ACL(fname, file); | |
132 | #endif | |
133 | +#ifdef SUPPORT_XATTRS | |
134 | + if (f_out == -1) | |
135 | + SET_XATTR(fname, file); | |
136 | +#endif | |
137 | if (delete_during && f_out != -1 && !phase && dry_run < 2 | |
138 | && (file->flags & FLAG_DEL_HERE)) | |
139 | delete_in_dir(the_file_list, fname, file); | |
140 | --- orig/lib/sysxattr.c 2005-05-12 23:23:15 | |
141 | +++ lib/sysxattr.c 2005-05-12 23:23:15 | |
142 | @@ -0,0 +1,41 @@ | |
143 | +/* Extended attribute support for rsync. */ | |
144 | +/* This file Copyright (C) 2004 Red Hat, Inc. */ | |
145 | +/* Written by Jay Fenlason */ | |
146 | + | |
147 | +/* This program is free software; you can redistribute it and/or modify | |
148 | + it under the terms of the GNU General Public License as published by | |
149 | + the Free Software Foundation; either version 2 of the License, or | |
150 | + (at your option) any later version. | |
151 | + | |
152 | + This program is distributed in the hope that it will be useful, | |
153 | + but WITHOUT ANY WARRANTY; without even the implied warranty of | |
154 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
155 | + GNU General Public License for more details. | |
156 | + | |
157 | + You should have received a copy of the GNU General Public License | |
158 | + along with this program; if not, write to the Free Software | |
159 | + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
160 | +*/ | |
161 | + | |
162 | +#include "rsync.h" | |
163 | + | |
164 | +#if defined(HAVE_LINUX_XATTRS) | |
165 | + | |
166 | +ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size) | |
167 | +{ | |
168 | + return lgetxattr(path, name, value, size); | |
169 | +} | |
170 | + | |
171 | +int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size, int flags) | |
172 | +{ | |
173 | + return lsetxattr(path, name, value, size, flags); | |
174 | +} | |
175 | + | |
176 | +ssize_t sys_llistxattr(const char *path, char *list, size_t size) | |
177 | +{ | |
178 | + return llistxattr(path, list, size); | |
179 | +} | |
180 | + | |
181 | +#else | |
182 | + | |
183 | +#endif /* No xattrs */ | |
184 | --- orig/lib/sysxattr.h 2005-05-12 23:56:31 | |
185 | +++ lib/sysxattr.h 2005-05-12 23:56:31 | |
186 | @@ -0,0 +1,9 @@ | |
187 | +#if defined(HAVE_LINUX_XATTRS) | |
188 | + | |
189 | +ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size); | |
190 | +int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size, int flags); | |
191 | +ssize_t sys_llistxattr(const char *path, char *list, size_t size); | |
192 | + | |
193 | +#else | |
194 | + | |
195 | +#endif /* No xattrs */ | |
489b0a72 WD |
196 | --- orig/options.c 2005-08-27 21:15:29 |
197 | +++ options.c 2005-08-27 21:29:40 | |
1a2bc9cd | 198 | @@ -44,6 +44,7 @@ int copy_links = 0; |
bbdff76a WD |
199 | int preserve_links = 0; |
200 | int preserve_hard_links = 0; | |
201 | int preserve_acls = 0; | |
202 | +int preserve_xattrs = 0; | |
203 | int preserve_perms = 0; | |
204 | int preserve_devices = 0; | |
205 | int preserve_uid = 0; | |
489b0a72 | 206 | @@ -183,6 +184,7 @@ static void print_rsync_version(enum log |
bbdff76a WD |
207 | char const *have_inplace = "no "; |
208 | char const *hardlinks = "no "; | |
209 | char const *acls = "no "; | |
210 | + char const *xattrs = "no "; | |
211 | char const *links = "no "; | |
212 | char const *ipv6 = "no "; | |
213 | STRUCT_STAT *dumstat; | |
489b0a72 | 214 | @@ -202,7 +204,9 @@ static void print_rsync_version(enum log |
bbdff76a WD |
215 | #ifdef SUPPORT_ACLS |
216 | acls = ""; | |
217 | #endif | |
218 | - | |
219 | +#ifdef SUPPORT_XATTRS | |
220 | + xattrs = ""; | |
221 | +#endif | |
222 | #ifdef SUPPORT_LINKS | |
223 | links = ""; | |
224 | #endif | |
489b0a72 | 225 | @@ -217,9 +221,9 @@ static void print_rsync_version(enum log |
bbdff76a WD |
226 | "Copyright (C) 1996-2005 by Andrew Tridgell and others\n"); |
227 | rprintf(f, "<http://rsync.samba.org/>\n"); | |
228 | rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, " | |
229 | - "%shard links, %sACLs, %ssymlinks, batchfiles, \n", | |
230 | + "%shard links, %sACLs, %sxattrs, %ssymlinks, batchfiles, \n", | |
231 | (int) (sizeof (OFF_T) * 8), | |
232 | - got_socketpair, hardlinks, acls, links); | |
233 | + got_socketpair, hardlinks, acls, xattrs, links); | |
234 | ||
235 | /* Note that this field may not have type ino_t. It depends | |
236 | * on the complicated interaction between largefile feature | |
f787c90c | 237 | @@ -290,6 +294,7 @@ void usage(enum logcode F) |
bbdff76a WD |
238 | rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n"); |
239 | rprintf(F," -p, --perms preserve permissions\n"); | |
240 | rprintf(F," -A, --acls preserve ACLs (implies --perms)\n"); | |
241 | + rprintf(F," -X, --xattrs preserve extended attributes (implies --perms)\n"); | |
242 | rprintf(F," -o, --owner preserve owner (root only)\n"); | |
243 | rprintf(F," -g, --group preserve group\n"); | |
244 | rprintf(F," -D, --devices preserve devices (root only)\n"); | |
489b0a72 WD |
245 | @@ -395,6 +400,9 @@ static struct poptOption long_options[] |
246 | {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 }, | |
247 | {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 }, | |
248 | {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 }, | |
249 | + {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 }, | |
250 | + {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 }, | |
251 | + {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 }, | |
252 | {"times", 't', POPT_ARG_VAL, &preserve_times, 1, 0, 0 }, | |
253 | {"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 }, | |
254 | {"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 }, | |
f787c90c | 255 | @@ -954,6 +962,17 @@ int parse_arguments(int *argc, const cha |
489b0a72 | 256 | return 0; |
bbdff76a | 257 | #endif /* SUPPORT_ACLS */ |
bbdff76a WD |
258 | |
259 | + case 'X': | |
260 | +#ifdef SUPPORT_XATTRS | |
261 | + preserve_xattrs = 1; | |
262 | + preserve_perms = 1; | |
489b0a72 | 263 | + break; |
bbdff76a WD |
264 | +#else |
265 | + snprintf(err_buf,sizeof(err_buf), | |
266 | + "extended attributes are not supported on this %s\n", | |
267 | + am_server ? "server" : "client"); | |
268 | + return 0; | |
269 | +#endif /* SUPPORT_XATTRS */ | |
bbdff76a WD |
270 | |
271 | default: | |
272 | /* A large opt value means that set_refuse_options() | |
f787c90c | 273 | @@ -1378,6 +1397,8 @@ void server_options(char **args,int *arg |
bbdff76a WD |
274 | argstr[x++] = 'H'; |
275 | if (preserve_acls) | |
276 | argstr[x++] = 'A'; | |
277 | + if (preserve_xattrs) | |
278 | + argstr[x++] = 'X'; | |
279 | if (preserve_uid) | |
280 | argstr[x++] = 'o'; | |
281 | if (preserve_gid) | |
282 | --- orig/rsync.c 2004-07-03 20:11:58 | |
283 | +++ rsync.c 2005-03-03 01:31:22 | |
489b0a72 | 284 | @@ -146,6 +146,14 @@ int set_perms(char *fname,struct file_st |
bbdff76a WD |
285 | if (SET_ACL(fname, file) == 0) |
286 | updated = 1; | |
287 | } | |
288 | + /* If this is a directory, SET_XATTR() will be called on the cleanup | |
289 | + * receive_generator() pass--if we called it here, we might clobber | |
290 | + * writability on the directory (SELinux security contexts are stored | |
291 | + * in xattrs). everything else is OK to do now. */ | |
292 | + if (!S_ISDIR(st->st_mode)) { | |
293 | + if (SET_XATTR(fname, file) == 0) | |
294 | + updated = 1; | |
295 | + } | |
296 | ||
297 | if (verbose > 1 && flags & PERMS_REPORT) { | |
298 | enum logcode code = daemon_log_format_has_i || dry_run | |
489b0a72 | 299 | --- orig/rsync.h 2005-07-29 02:25:55 |
bbdff76a | 300 | +++ rsync.h 2005-05-12 23:19:46 |
f787c90c | 301 | @@ -688,6 +688,38 @@ struct stats { |
bbdff76a WD |
302 | #endif /* SUPPORT_ACLS */ |
303 | #include "smb_acls.h" | |
304 | ||
305 | +#ifdef HAVE_LINUX_XATTRS | |
306 | +#define SUPPORT_XATTRS 1 | |
307 | +#endif | |
308 | + | |
309 | +#ifdef SUPPORT_XATTRS | |
310 | +#ifdef HAVE_ATTR_XATTR_H | |
311 | +#include <attr/xattr.h> | |
312 | +#endif | |
313 | +#define MAKE_XATTR(file, fname) make_xattr(file, fname) | |
314 | +#define SEND_XATTR(file, f) send_xattr(file, f) | |
315 | +#define RECEIVE_XATTR(file, f) receive_xattr(file, f) | |
316 | +#define SORT_FILE_XATTR_INDEX_LISTS() sort_file_xattr_index_lists() | |
317 | +#define SET_XATTR(fname, file) set_xattr(fname, file) | |
318 | +#define NEXT_XATTR_UID() next_xattr_uid() | |
319 | +#define XATTR_UID_MAP(uid) xattr_uid_map(uid) | |
320 | +#define PUSH_KEEP_BACKUP_XATTR(file, orig, dest) \ | |
321 | + push_keep_backup_xattr(file, orig, dest) | |
322 | +#define CLEANUP_KEEP_BACKUP_XATTR() cleanup_keep_backup_xattr() | |
323 | +#define DUP_XATTR(orig, dest) dup_xattr(orig, dest) | |
324 | +#else /* SUPPORT_XATTRS */ | |
325 | +#define MAKE_XATTR(file, fname) 1 /* checked return value */ | |
326 | +#define SEND_XATTR(file, f) | |
327 | +#define RECEIVE_XATTR(file, f) | |
328 | +#define SORT_FILE_XATTR_INDEX_LISTS() | |
329 | +#define SET_XATTR(fname, file) 0 /* checked return value */ | |
330 | +#define NEXT_XATTR_UID() | |
331 | +#define XATTR_UID_MAP(uid) | |
332 | +#define PUSH_KEEP_BACKUP_XATTR(file, orig, dest) | |
333 | +#define CLEANUP_KEEP_BACKUP_XATTR() | |
334 | +#define DUP_XATTR(src, orig) 0 /* checked return value */ | |
335 | +#endif /* SUPPORT_XATTRS */ | |
336 | + | |
337 | #include "proto.h" | |
338 | ||
339 | /* We have replacement versions of these if they're missing. */ | |
340 | --- orig/rsync.yo 2004-07-03 20:11:58 | |
341 | +++ rsync.yo 2005-03-03 01:33:53 | |
f787c90c | 342 | @@ -317,6 +317,7 @@ to the detailed description below for a |
bbdff76a WD |
343 | -K, --keep-dirlinks treat symlinked dir on receiver as dir |
344 | -p, --perms preserve permissions | |
345 | -A, --acls preserve ACLs (implies -p) [local option] | |
346 | + -X, --xattrs preserve extended attributes (implies -p) [local option] | |
347 | -o, --owner preserve owner (root only) | |
348 | -g, --group preserve group | |
349 | -D, --devices preserve devices (root only) | |
489b0a72 | 350 | @@ -671,6 +672,11 @@ ACLs to be the same as the local ACLs. |
bbdff76a WD |
351 | remote machine's rsync supports this option also. This is a non-standard |
352 | option. | |
353 | ||
354 | +dit(bf(-X, --xattrs)) This option causes rsync to update the remote | |
355 | +extended attributes to be the same as the local ones. This will work | |
356 | +only if the remote machine's rsync supports this option also. This is | |
357 | +a non-standard option. | |
358 | + | |
359 | dit(bf(-o, --owner)) This option causes rsync to set the owner of the | |
360 | destination file to be the same as the source file. On most systems, | |
361 | only the super-user can set file ownership. By default, the preservation | |
a8801c39 WD |
362 | --- orig/xattr.c 2005-05-13 06:10:34 |
363 | +++ xattr.c 2005-05-13 06:10:34 | |
bbdff76a WD |
364 | @@ -0,0 +1,546 @@ |
365 | +/* Extended Attribute support for rsync */ | |
366 | +/* Copyright (C) 2004 Red Hat, Inc */ | |
367 | +/* Written by Jay Fenlason, vaguely based on the ACLs patch */ | |
368 | + | |
369 | +/* This program is free software; you can redistribute it and/or modify | |
370 | + it under the terms of the GNU General Public License as published by | |
371 | + the Free Software Foundation; either version 2 of the License, or | |
372 | + (at your option) any later version. | |
373 | + | |
374 | + This program is distributed in the hope that it will be useful, | |
375 | + but WITHOUT ANY WARRANTY; without even the implied warranty of | |
376 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
377 | + GNU General Public License for more details. | |
378 | + | |
379 | + You should have received a copy of the GNU General Public License | |
380 | + along with this program; if not, write to the Free Software | |
381 | + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
382 | +*/ | |
383 | + | |
384 | +#include "rsync.h" | |
385 | +#include "lib/sysxattr.h" | |
386 | + | |
387 | +#ifdef SUPPORT_XATTRS | |
388 | + | |
389 | +extern int preserve_xattrs; | |
390 | +extern int dry_run; | |
391 | + | |
392 | +#define RSYNC_XAL_INITIAL 5 | |
393 | +#define RSYNC_XAL_LIST_INITIAL 100 | |
394 | + | |
395 | +typedef struct { | |
396 | + size_t name_len; | |
397 | + char *name; | |
398 | + size_t datum_len; | |
399 | + char *datum; | |
400 | +} rsync_xa; | |
401 | + | |
402 | +typedef struct { | |
403 | + size_t count; | |
404 | + size_t alloc; | |
405 | + rsync_xa *rxas; | |
406 | +} rsync_xal; | |
407 | + | |
408 | +typedef struct { | |
409 | + size_t count; | |
410 | + size_t alloc; | |
411 | + rsync_xal *rxals; | |
412 | +} rsync_xal_list; | |
413 | + | |
414 | +static size_t namebuf_len = 0; | |
415 | +static char *namebuf = NULL; | |
416 | + | |
417 | +static size_t datumbuf_len = 0; | |
418 | +static char *datumbuf = NULL; | |
419 | + | |
420 | +static rsync_xal curr_rsync_xal = { 0, 0, NULL }; | |
421 | +static rsync_xal_list rsync_xal_l = { 0, 0, NULL }; | |
422 | + | |
423 | + | |
424 | +/* ------------------------------------------------------------------------- */ | |
425 | + | |
426 | +/* the below stuff is only used by the receiver */ | |
427 | + | |
428 | +/* structure to hold index to rsync_xal_l member corresponding to | |
429 | + * flist->files[i] */ | |
430 | + | |
431 | +typedef struct { | |
432 | + const struct file_struct *file; | |
433 | + int xalidx; | |
434 | +} file_xal_index; | |
435 | + | |
436 | +typedef struct { | |
437 | + size_t count; | |
438 | + size_t alloc; | |
439 | + file_xal_index *filexalidxs; | |
440 | +} file_xal_index_list; | |
441 | + | |
442 | +static file_xal_index_list fxil = {0, 0, NULL }; | |
443 | + | |
444 | +/* stuff for redirecting calls to set_acl() from set_perms() | |
445 | + * for keep_backup() */ | |
446 | +static const struct file_struct *backup_orig_file = NULL; | |
447 | +static const char null_string[] = ""; | |
448 | +static const char *backup_orig_fname = null_string; | |
449 | +static const char *backup_dest_fname = null_string; | |
450 | +static rsync_xal backup_xal; | |
451 | + | |
452 | +/* ------------------------------------------------------------------------- */ | |
453 | + | |
454 | +static void rsync_xal_free(rsync_xal *x) | |
455 | +{ | |
456 | + size_t i; | |
457 | + | |
458 | + for (i = 0; i < x->count; i++) { | |
459 | + free(x->rxas[i].name); | |
460 | + /* free(x->rxas[i].value); */ | |
461 | + } | |
462 | + x->count = 0; | |
463 | +} | |
464 | + | |
465 | +static int rsync_xal_compare_names(const void *x1, const void *x2) | |
466 | +{ | |
467 | + const rsync_xa *xa1; | |
468 | + const rsync_xa *xa2; | |
469 | + | |
470 | + xa1 = x1; | |
471 | + xa2 = x2; | |
472 | + return strcmp(xa1->name, xa2->name); | |
473 | +} | |
474 | + | |
475 | +static BOOL rsync_xal_get(const char *fname, rsync_xal *x) | |
476 | +{ | |
477 | + ssize_t name_size; | |
478 | + ssize_t datum_size; | |
479 | + ssize_t left; | |
480 | + char *name; | |
481 | + size_t len; | |
482 | + char *ptr; | |
483 | + | |
484 | + if (!namebuf) { | |
485 | + namebuf_len = 100; | |
486 | + namebuf = new_array(char, namebuf_len); | |
487 | + datumbuf_len = 100; | |
488 | + datumbuf = new_array(char, datumbuf_len); | |
489 | + if (!namebuf || !datumbuf) | |
490 | + out_of_memory("rsync_xal_get"); | |
491 | + } | |
492 | + | |
493 | + name_size = sys_llistxattr(fname, namebuf, namebuf_len); | |
494 | + if (name_size > (ssize_t)namebuf_len) { | |
495 | + name_size = -1; | |
496 | + errno = ERANGE; | |
497 | + } | |
498 | + if (name_size < 0) { | |
499 | + if (errno == ENOTSUP) | |
500 | + return False; | |
501 | + if (errno == ERANGE) { | |
502 | + name_size = sys_llistxattr(fname, NULL, 0); | |
503 | + if (name_size < 0) { | |
504 | + rprintf(FERROR, "%s: rsync_xal_get: llistxattr: %s\n", | |
505 | + fname, strerror(errno)); | |
506 | + return False; | |
507 | + } | |
508 | + namebuf = realloc_array(namebuf, char, name_size + 1); | |
509 | + if (!namebuf) | |
510 | + out_of_memory("rsync_xal_get"); | |
511 | + namebuf_len = name_size; | |
512 | + name_size = sys_llistxattr(fname, namebuf, namebuf_len); | |
513 | + if (name_size < 0) { | |
514 | + rprintf(FERROR, | |
515 | + "%s: rsync_xal_get: re-llistxattr failed: %s\n", | |
516 | + fname, strerror(errno)); | |
517 | + return False; | |
518 | + } | |
519 | + } else { | |
520 | + rprintf(FERROR, | |
521 | + "%s: rsync_xal_get: llistxattr failed: %s\n", | |
522 | + fname, strerror(errno)); | |
523 | + return False; | |
524 | + } | |
525 | + } | |
526 | + rsync_xal_free(x); | |
527 | + if (name_size == 0) | |
528 | + return True; | |
529 | + for (left = name_size, name = namebuf; left > 0 ; left -= len, name += len) { | |
530 | + len = strlen(name) + 1; | |
531 | + | |
532 | + if (x->count >= x->alloc) { | |
533 | + size_t new_alloc; | |
534 | + rsync_xa *new_rxas; | |
535 | + | |
536 | + new_alloc = x->alloc < RSYNC_XAL_INITIAL ? RSYNC_XAL_INITIAL : x->alloc * 2; | |
537 | + new_rxas = realloc_array(x->rxas, rsync_xa, new_alloc); | |
538 | + if (!new_rxas) | |
539 | + out_of_memory("rsync_xal_get"); | |
540 | + x->alloc = new_alloc; | |
541 | + x->rxas = new_rxas; | |
542 | + } | |
543 | + datum_size = sys_lgetxattr(fname, name, datumbuf, datumbuf_len); | |
544 | + if (datum_size > (ssize_t)datumbuf_len) { | |
545 | + datum_size = -1; | |
546 | + errno = ERANGE; | |
547 | + } | |
548 | + if (datum_size < 0) { | |
549 | + if (errno == ENOTSUP) | |
550 | + return False; | |
551 | + if (errno == ERANGE) { | |
552 | + datum_size = sys_lgetxattr(fname, name, NULL, 0); | |
553 | + if (datum_size < 0) { | |
554 | + rprintf(FERROR, | |
555 | + "%s: rsync_xal_get: lgetxattr %s failed: %s\n", | |
556 | + fname, name, strerror(errno)); | |
557 | + return False; | |
558 | + } | |
559 | + datumbuf = realloc_array(datumbuf, char, datum_size + 1); | |
560 | + if (!datumbuf) | |
561 | + out_of_memory("rsync_xal_get"); | |
562 | + datumbuf_len = datum_size; | |
563 | + datum_size = sys_lgetxattr(fname, name, datumbuf, datumbuf_len); | |
564 | + if (datum_size < 0) { | |
565 | + rprintf(FERROR, | |
566 | + "%s: rsync_xal_get: re-lgetxattr of %s failed: %s\n", | |
567 | + name, fname, strerror(errno)); | |
568 | + return False; | |
569 | + } | |
570 | + } else { | |
571 | + rprintf(FERROR, | |
572 | + "%s: rsync_xal_get: lgetxattr %s failed: %s\n", | |
573 | + fname, name, strerror(errno)); | |
574 | + return False; | |
575 | + } | |
576 | + } | |
577 | + ptr = new_array(char, len + datum_size); | |
578 | + if (!ptr) | |
579 | + out_of_memory("rsync_xal_get"); | |
580 | + strcpy(ptr, name); | |
581 | + if (datum_size) | |
582 | + memcpy(ptr + len, datumbuf, datum_size); | |
583 | + x->rxas[curr_rsync_xal.count].name_len = len; | |
584 | + x->rxas[curr_rsync_xal.count].name = ptr; | |
585 | + x->rxas[curr_rsync_xal.count].datum_len = datum_size; | |
586 | + x->rxas[curr_rsync_xal.count].datum = ptr + len; | |
587 | + x->count++; | |
588 | + } | |
589 | + if (x->count > 1) { | |
590 | + qsort(x->rxas, x->count, sizeof (rsync_xa), rsync_xal_compare_names); | |
591 | + } | |
592 | + return True; | |
593 | +} | |
594 | + | |
595 | + | |
596 | +/* generate the xattr(s) for this flist entry; | |
597 | + * xattr(s) are either sent or cleaned-up by send_xattr() below */ | |
598 | + | |
599 | +BOOL make_xattr(const struct file_struct *file, const char *fname) | |
600 | +{ | |
a8801c39 | 601 | + if (!preserve_xattrs || !file) |
bbdff76a WD |
602 | + return True; |
603 | + | |
604 | + rsync_xal_get(fname, &curr_rsync_xal); | |
605 | + return True; | |
606 | +} | |
607 | + | |
608 | +static ssize_t rsync_xal_find_matching(void) | |
609 | +{ | |
610 | + size_t i; | |
611 | + size_t j; | |
612 | + | |
613 | + for (i = 0; i < rsync_xal_l.count; i++) { | |
614 | + /* Wrong number of elements? */ | |
615 | + if (rsync_xal_l.rxals[i].count != curr_rsync_xal.count) | |
616 | + continue; | |
617 | + /* any elements different? */ | |
618 | + for (j = 0; j < curr_rsync_xal.count; j++) { | |
619 | + if (rsync_xal_l.rxals[i].rxas[j].name_len != curr_rsync_xal.rxas[j].name_len | |
620 | + || rsync_xal_l.rxals[i].rxas[j].datum_len != curr_rsync_xal.rxas[j].datum_len | |
621 | + || strcmp(rsync_xal_l.rxals[i].rxas[j].name, curr_rsync_xal.rxas[j].name) | |
622 | + || memcmp(rsync_xal_l.rxals[i].rxas[j].datum, curr_rsync_xal.rxas[j].datum, curr_rsync_xal.rxas[j].datum_len)) | |
623 | + break; | |
624 | + } | |
625 | + /* no differences found. This is The One! */ | |
626 | + if (j == curr_rsync_xal.count) | |
627 | + break; | |
628 | + } | |
629 | + if (i < rsync_xal_l.count) | |
630 | + return i; | |
631 | + return (ssize_t)-1; | |
632 | +} | |
633 | + | |
634 | +/* Store curr_rsync_xal on the end of rsync_xal_l */ | |
635 | +static void rsync_xal_store(void) | |
636 | +{ | |
637 | + if (rsync_xal_l.count <= rsync_xal_l.alloc) { | |
638 | + size_t new_alloc; | |
639 | + void *new_xal; | |
640 | + | |
641 | + new_alloc = rsync_xal_l.count < RSYNC_XAL_LIST_INITIAL ? RSYNC_XAL_LIST_INITIAL : rsync_xal_l.count * 2; | |
642 | + new_xal = realloc_array(rsync_xal_l.rxals, rsync_xal, new_alloc); | |
643 | + if (!new_xal) | |
644 | + out_of_memory("rsync_xal_store"); | |
645 | + rsync_xal_l.alloc = new_alloc; | |
646 | + rsync_xal_l.rxals = new_xal; | |
647 | + } | |
648 | + rsync_xal_l.rxals[rsync_xal_l.count] = curr_rsync_xal; | |
649 | + rsync_xal_l.count++; | |
650 | + curr_rsync_xal.count = 0; | |
651 | + curr_rsync_xal.alloc = 0; | |
652 | +} | |
653 | + | |
654 | +/* send the make_xattr()-generated xattr list for this flist entry, | |
655 | + * or clean up after an flist entry that's not being sent (f == -1) */ | |
656 | + | |
657 | +void send_xattr(const struct file_struct *file, int f) | |
658 | +{ | |
659 | + ssize_t index; | |
660 | + | |
a8801c39 | 661 | + if (!preserve_xattrs || !file) |
bbdff76a WD |
662 | + return; |
663 | + | |
664 | + if (f == -1) { | |
665 | + rsync_xal_free(&curr_rsync_xal); | |
666 | + return; | |
667 | + } | |
668 | + index = rsync_xal_find_matching(); | |
669 | + if (index != -1) { | |
670 | + write_byte(f, 'x'); | |
671 | + write_int(f, index); | |
672 | + rsync_xal_free(&curr_rsync_xal); | |
673 | + } else { | |
674 | + rsync_xa *rxa; | |
675 | + size_t count; | |
676 | + | |
677 | + count = curr_rsync_xal.count; | |
678 | + write_byte(f, 'X'); | |
679 | + write_int(f, count); | |
680 | + for (rxa = curr_rsync_xal.rxas; count--; rxa++) { | |
681 | + write_int(f, rxa->name_len); | |
682 | + write_int(f, rxa->datum_len); | |
683 | + write_buf(f, rxa->name, rxa->name_len); | |
684 | + write_buf(f, rxa->datum, rxa->datum_len); | |
685 | + } | |
686 | + rsync_xal_store(); | |
687 | + } | |
688 | +} | |
689 | + | |
690 | + | |
691 | +/* ------------------------------------------------------------------------- */ | |
692 | +/* receive and build the rsync_xattr_lists */ | |
693 | + | |
694 | +void receive_xattr(struct file_struct *file, int f) | |
695 | +{ | |
696 | + char *fname; | |
697 | + int tag; | |
698 | + | |
699 | + if (!preserve_xattrs) | |
700 | + return; | |
701 | + fname = f_name(file); | |
702 | + tag = read_byte(f); | |
703 | + if (tag != 'X' && tag != 'x') { | |
704 | + rprintf(FERROR, | |
705 | + "%s: receive_xattr: unknown extended attribute type tag: %c\n", | |
706 | + fname, tag); | |
707 | + exit_cleanup(RERR_STREAMIO); | |
708 | + } | |
709 | + | |
710 | + if (fxil.alloc <= fxil.count) { | |
711 | + void *new_ptr; | |
712 | + size_t new_alloc; | |
713 | + | |
714 | + if (fxil.count < RSYNC_XAL_LIST_INITIAL) | |
715 | + new_alloc = fxil.alloc + RSYNC_XAL_LIST_INITIAL; | |
716 | + else | |
717 | + new_alloc = fxil.alloc * 2; | |
718 | + new_ptr = realloc_array(fxil.filexalidxs, file_xal_index, new_alloc); | |
719 | + if (!new_ptr) | |
720 | + out_of_memory("receive_xattr"); | |
721 | + if (verbose >= 3) { | |
722 | + rprintf(FINFO, "receive_xattr to %lu bytes, %s move\n", | |
723 | + (unsigned long)(new_alloc * sizeof (file_xal_index)), | |
724 | + fxil.filexalidxs == new_ptr ? "did not" : "did"); | |
725 | + } | |
726 | + | |
727 | + fxil.filexalidxs = new_ptr; | |
728 | + fxil.alloc = new_alloc; | |
729 | + } | |
730 | + | |
731 | + fxil.filexalidxs[fxil.count].file = file; | |
732 | + if (tag == 'X') { | |
733 | + size_t count; | |
734 | + size_t i; | |
735 | + | |
736 | + fxil.filexalidxs[fxil.count].xalidx = rsync_xal_l.count; | |
737 | + | |
738 | + count = read_int(f); | |
739 | + curr_rsync_xal.count = count; | |
740 | + curr_rsync_xal.alloc = count; | |
741 | + curr_rsync_xal.rxas = new_array(rsync_xa, count); | |
742 | + if (!curr_rsync_xal.rxas) | |
743 | + out_of_memory("receive_xattr"); | |
744 | + for (i = 0; i < count; i++) { | |
745 | + size_t name_len; | |
746 | + size_t datum_len; | |
747 | + char *ptr; | |
748 | + | |
749 | + name_len = read_int(f); | |
750 | + datum_len = read_int(f); | |
751 | + ptr = new_array(char, name_len + datum_len); | |
752 | + if (!ptr) | |
753 | + out_of_memory("receive_xattr"); | |
754 | + read_buf(f, ptr, name_len); | |
755 | + read_buf(f, ptr + name_len, datum_len); | |
756 | + curr_rsync_xal.rxas[i].name_len = name_len; | |
757 | + curr_rsync_xal.rxas[i].datum_len = datum_len; | |
758 | + curr_rsync_xal.rxas[i].name = ptr; | |
759 | + curr_rsync_xal.rxas[i].datum = ptr + name_len; | |
760 | + } | |
761 | + rsync_xal_store(); | |
762 | + } else { | |
763 | + size_t index; | |
764 | + | |
765 | + index = read_int(f); | |
766 | + if (index >= rsync_xal_l.count) { | |
767 | + rprintf(FERROR, "%s: receive_xattr: xa index %lu out of range\n", | |
768 | +fname, (unsigned long)index); | |
769 | + exit_cleanup(RERR_STREAMIO); | |
770 | + } | |
771 | + fxil.filexalidxs[fxil.count].xalidx = index; | |
772 | + } | |
773 | + fxil.count++; | |
774 | +} | |
775 | + | |
776 | +static BOOL rsync_xal_set(const char *fname, rsync_xal *x) | |
777 | +{ | |
778 | + size_t i; | |
779 | + int status; | |
780 | + BOOL ret; | |
781 | + | |
782 | + ret = True; | |
783 | + for (i = 0; i < x->count; i++) { | |
784 | + status = sys_lsetxattr(fname, x->rxas[i].name, x->rxas[i].datum, x->rxas[i].datum_len, 0); | |
785 | + if (status < 0) { | |
786 | + rprintf(FERROR, "%s: rsync_xal_set: lsetxattr %s failed: %s\n", | |
787 | + fname, x->rxas[i].name, strerror(errno)); | |
788 | + ret = False; | |
789 | + } | |
790 | + } | |
791 | + return ret; | |
792 | +} | |
793 | + | |
794 | +/* for duplicating xattrs on backups when using backup_dir */ | |
795 | + | |
796 | +int dup_xattr(const char *orig, const char *bak) | |
797 | +{ | |
798 | + int ret; | |
799 | + | |
800 | + ret = 0; | |
801 | + if (!preserve_xattrs) | |
802 | + return ret; | |
803 | + | |
804 | + ret = rsync_xal_get(orig, &backup_xal); | |
805 | + if (ret == True) | |
806 | + ret = rsync_xal_set(bak, &backup_xal); | |
807 | + rsync_xal_free(&backup_xal); | |
808 | + return ret; | |
809 | +} | |
810 | + | |
811 | +void push_keep_backup_xattr(const struct file_struct *file, const char *orig, const char *dest) | |
812 | +{ | |
813 | + if (!preserve_xattrs) | |
814 | + return; | |
815 | + | |
816 | + backup_orig_file = file; | |
817 | + backup_orig_fname = orig; | |
818 | + backup_dest_fname = dest; | |
819 | + rsync_xal_get(orig, &backup_xal); | |
820 | +} | |
821 | + | |
822 | +static int set_keep_backup_xal(void) | |
823 | +{ | |
824 | + if (!preserve_xattrs) | |
825 | + return 0; | |
826 | + return rsync_xal_set(backup_dest_fname, &backup_xal); | |
827 | +} | |
828 | + | |
829 | +void cleanup_keep_backup_xattr(void) | |
830 | +{ | |
831 | + if (!preserve_xattrs) | |
832 | + return; | |
833 | + | |
834 | + backup_orig_file = NULL; | |
835 | + backup_orig_fname = null_string; | |
836 | + backup_dest_fname = null_string; | |
837 | + rsync_xal_free(&backup_xal); | |
838 | +} | |
839 | + | |
840 | +static int file_xal_index_compare(const void *x1, const void *x2) | |
841 | +{ | |
842 | + const file_xal_index *xa1; | |
843 | + const file_xal_index *xa2; | |
844 | + | |
845 | + xa1 = x1; | |
846 | + xa2 = x2; | |
847 | + return xa1->file == xa2->file ? 0 : xa1->file < xa2->file ? -1 : 1; | |
848 | +} | |
849 | + | |
850 | +void sort_file_xattr_index_lists(void) | |
851 | +{ | |
852 | + if (!preserve_xattrs) | |
853 | + return; | |
854 | + qsort(fxil.filexalidxs, fxil.count, sizeof (file_xal_index), file_xal_index_compare); | |
855 | +} | |
856 | + | |
857 | +static int find_file_xal_index(const struct file_struct *file) | |
858 | +{ | |
859 | + int low = 0, high = fxil.count; | |
860 | + const struct file_struct *file_mid; | |
861 | + | |
862 | + if (!high--) { | |
863 | + rprintf(FERROR, "find_file_xal_index: no entries\n"); | |
864 | + exit_cleanup(RERR_STREAMIO); | |
865 | + return -1; | |
866 | + } | |
867 | + do { | |
868 | + int mid = (high + low) / 2; | |
869 | + file_mid = fxil.filexalidxs[mid].file; | |
870 | + if (file_mid == file) | |
871 | + return fxil.filexalidxs[mid].xalidx; | |
872 | + if (file_mid > file) | |
873 | + high = mid - 1; | |
874 | + else | |
875 | + low = mid + 1; | |
876 | + } while (low < high); | |
877 | + if (low == high) { | |
878 | + file_mid = fxil.filexalidxs[low].file; | |
879 | + if (file_mid == file) | |
880 | + return fxil.filexalidxs[low].xalidx; | |
881 | + } | |
882 | + rprintf(FERROR, | |
883 | + "find_file_xal_index: can't find entry for file in list\n"); | |
884 | + exit_cleanup(RERR_STREAMIO); | |
885 | + return -1; | |
886 | +} | |
887 | + | |
888 | + | |
889 | +/* set extended attributes on rsync-ed or keep_backup-ed file */ | |
890 | + | |
891 | +int set_xattr(const char *fname, const struct file_struct *file) | |
892 | +{ | |
893 | + int updated; | |
894 | + int xalidx; | |
895 | + rsync_xal *x; | |
896 | + | |
897 | + updated = 0; | |
898 | + if (dry_run || !preserve_xattrs) | |
899 | + return 0; | |
900 | + if (file == backup_orig_file) { | |
901 | + if (!strcmp(fname, backup_dest_fname)) | |
902 | + return set_keep_backup_xal(); | |
903 | + } | |
904 | + xalidx = find_file_xal_index(file); | |
905 | + x = &(rsync_xal_l.rxals[xalidx]); | |
906 | + updated = rsync_xal_set(fname, x); | |
907 | + return updated; | |
908 | +} | |
909 | + | |
910 | +#endif /* SUPPORT_XATTRS */ |