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 | ||
27e96866 | 5 | ./prepare-source |
f787c90c | 6 | ./configure --enable-acl-support --enable-xattr-support |
bbdff76a WD |
7 | make |
8 | ||
9a7eef96 WD |
9 | --- old/Makefile.in |
10 | +++ new/Makefile.in | |
4bf6f8c7 | 11 | @@ -27,13 +27,13 @@ VERSION=@VERSION@ |
bbdff76a WD |
12 | |
13 | HEADERS=byteorder.h config.h errcode.h proto.h rsync.h smb_acls.h lib/pool_alloc.h | |
14 | LIBOBJ=lib/wildmatch.o lib/compat.o lib/snprintf.o lib/mdfour.o \ | |
15 | - lib/permstring.o lib/pool_alloc.o lib/sysacls.o @LIBOBJS@ | |
16 | + lib/permstring.o lib/pool_alloc.o lib/sysacls.o lib/sysxattr.o @LIBOBJS@ | |
4bf6f8c7 WD |
17 | ZLIBOBJ=zlib/deflate.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o \ |
18 | zlib/trees.o zlib/zutil.o zlib/adler32.o zlib/compress.o zlib/crc32.o | |
bbdff76a WD |
19 | OBJS1=rsync.o generator.o receiver.o cleanup.o sender.o exclude.o util.o \ |
20 | main.o checksum.o match.o syscall.o log.o backup.o | |
21 | OBJS2=options.o flist.o io.o compat.o hlink.o token.o uidlist.o socket.o \ | |
610969d1 WD |
22 | - fileio.o batch.o clientname.o chmod.o acls.o |
23 | + fileio.o batch.o clientname.o chmod.o acls.o xattr.o | |
bbdff76a WD |
24 | OBJS3=progress.o pipe.o |
25 | DAEMON_OBJ = params.o loadparm.o clientserver.o access.o connection.o authenticate.o | |
26 | popt_OBJS=popt/findme.o popt/popt.o popt/poptconfig.o \ | |
9a7eef96 WD |
27 | --- old/backup.c |
28 | +++ new/backup.c | |
3731f97b | 29 | @@ -133,6 +133,7 @@ static int make_bak_dir(char *fullpath) |
bbdff76a WD |
30 | do_lchown(fullpath, st.st_uid, st.st_gid); |
31 | do_chmod(fullpath, st.st_mode); | |
32 | (void)DUP_ACL(end, fullpath, st.st_mode); | |
33 | + (void)DUP_XATTR(end, fullpath ); | |
34 | } | |
35 | } | |
36 | *p = '/'; | |
3731f97b | 37 | @@ -187,6 +188,7 @@ static int keep_backup(char *fname) |
bbdff76a WD |
38 | return 0; |
39 | ||
40 | PUSH_KEEP_BACKUP_ACL(file, fname, buf); | |
41 | + PUSH_KEEP_BACKUP_XATTR(file, fname, buf); | |
42 | ||
43 | /* Check to see if this is a device file, or link */ | |
4a65fe72 | 44 | if ((am_root && preserve_devices && IS_DEVICE(file->mode)) |
3731f97b | 45 | @@ -264,6 +266,7 @@ static int keep_backup(char *fname) |
bbdff76a | 46 | } |
4a65fe72 | 47 | set_file_attrs(buf, file, NULL, 0); |
bbdff76a WD |
48 | CLEANUP_KEEP_BACKUP_ACL(); |
49 | + CLEANUP_KEEP_BACKUP_XATTR(); | |
50 | free(file); | |
51 | ||
52 | if (verbose > 1) { | |
9a7eef96 WD |
53 | --- old/configure.in |
54 | +++ new/configure.in | |
afcb578c | 55 | @@ -814,6 +814,30 @@ samba_cv_HAVE_ACL_GET_PERM_NP=yes,samba_ |
bbdff76a WD |
56 | AC_MSG_RESULT(no) |
57 | ) | |
58 | ||
59 | +AC_CHECK_HEADERS(attr/xattr.h) | |
60 | +AC_MSG_CHECKING(whether to support extended attributes) | |
f787c90c WD |
61 | +AC_ARG_ENABLE(xattr-support, |
62 | +AC_HELP_STRING([--enable-xattr-support], [Include extended attribute support (default=no)]), | |
3b05e91f | 63 | +[ case "$enableval" in |
bbdff76a WD |
64 | + yes) |
65 | + case "$host_os" in | |
66 | + *linux*) | |
67 | + AC_MSG_RESULT(Using Linux xattrs) | |
68 | + AC_DEFINE(HAVE_LINUX_XATTRS, 1, [True if you have Linux xattrs]) | |
69 | + ;; | |
70 | + *) | |
71 | + AC_MSG_RESULT(Xattrs requested but not linux. Good luck) | |
72 | + ;; | |
73 | + esac | |
74 | + ;; | |
75 | + *) | |
76 | + AC_MSG_RESULT(no) | |
77 | + AC_DEFINE(HAVE_NA_XATTRS, 1, [True if you don't have extended attributes]) | |
78 | + esac ], | |
79 | + AC_MSG_RESULT(no) | |
80 | + AC_DEFINE(HAVE_NO_XATTRL, 1, [True if you don't have extended attributes]) | |
81 | +) | |
82 | + | |
83 | AC_CONFIG_FILES([Makefile lib/dummy zlib/dummy popt/dummy shconfig]) | |
84 | AC_OUTPUT | |
85 | ||
9a7eef96 WD |
86 | --- old/flist.c |
87 | +++ new/flist.c | |
3731f97b | 88 | @@ -968,6 +968,8 @@ static struct file_struct *send_file_nam |
bbdff76a | 89 | return NULL; |
489b0a72 | 90 | if (MAKE_ACL(file, fname) < 0) |
bbdff76a | 91 | return NULL; |
e5754c5f | 92 | + if (MAKE_XATTR(file, fname) < 0) |
bbdff76a WD |
93 | + return NULL; |
94 | ||
3b05e91f WD |
95 | if (chmod_modes && !S_ISLNK(file->mode)) |
96 | file->mode = tweak_mode(file->mode, chmod_modes); | |
3731f97b | 97 | @@ -980,9 +982,11 @@ static struct file_struct *send_file_nam |
bbdff76a | 98 | flist->files[flist->count++] = file; |
3b05e91f | 99 | send_file_entry(file, f); |
bbdff76a WD |
100 | SEND_ACL(file, f); |
101 | + SEND_XATTR(file, f); | |
102 | } else { | |
103 | /* Cleanup unsent ACL(s). */ | |
104 | SEND_ACL(file, -1); | |
105 | + SEND_XATTR(file, -1); | |
106 | } | |
107 | return file; | |
108 | } | |
3731f97b | 109 | @@ -1372,6 +1376,7 @@ struct file_list *recv_file_list(int f) |
bbdff76a WD |
110 | file = receive_file_entry(flist, flags, f); |
111 | ||
112 | RECEIVE_ACL(file, f); | |
113 | + RECEIVE_XATTR(file, f ); | |
114 | ||
3731f97b | 115 | if (S_ISREG(file->mode) || S_ISLNK(file->mode)) |
bbdff76a | 116 | stats.total_size += file->length; |
3731f97b | 117 | @@ -1396,6 +1401,7 @@ struct file_list *recv_file_list(int f) |
bbdff76a WD |
118 | clean_flist(flist, relative_paths, 1); |
119 | ||
120 | SORT_FILE_ACL_INDEX_LISTS(); | |
121 | + SORT_FILE_XATTR_INDEX_LISTS(); | |
122 | ||
123 | if (f >= 0) { | |
4a65fe72 | 124 | recv_uid_list(f, flist); |
9a7eef96 WD |
125 | --- old/generator.c |
126 | +++ new/generator.c | |
3731f97b | 127 | @@ -916,6 +916,10 @@ static void recv_generator(char *fname, |
bbdff76a WD |
128 | if (f_out == -1) |
129 | SET_ACL(fname, file); | |
130 | #endif | |
131 | +#ifdef SUPPORT_XATTRS | |
132 | + if (f_out == -1) | |
133 | + SET_XATTR(fname, file); | |
134 | +#endif | |
135 | if (delete_during && f_out != -1 && !phase && dry_run < 2 | |
136 | && (file->flags & FLAG_DEL_HERE)) | |
3b05e91f | 137 | delete_in_dir(the_file_list, fname, file, &st); |
9a7eef96 WD |
138 | --- old/lib/sysxattr.c |
139 | +++ new/lib/sysxattr.c | |
bbdff76a WD |
140 | @@ -0,0 +1,41 @@ |
141 | +/* Extended attribute support for rsync. */ | |
142 | +/* This file Copyright (C) 2004 Red Hat, Inc. */ | |
143 | +/* Written by Jay Fenlason */ | |
144 | + | |
145 | +/* This program is free software; you can redistribute it and/or modify | |
146 | + it under the terms of the GNU General Public License as published by | |
147 | + the Free Software Foundation; either version 2 of the License, or | |
148 | + (at your option) any later version. | |
149 | + | |
150 | + This program is distributed in the hope that it will be useful, | |
151 | + but WITHOUT ANY WARRANTY; without even the implied warranty of | |
152 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
153 | + GNU General Public License for more details. | |
154 | + | |
155 | + You should have received a copy of the GNU General Public License | |
156 | + along with this program; if not, write to the Free Software | |
157 | + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
158 | +*/ | |
159 | + | |
160 | +#include "rsync.h" | |
161 | + | |
162 | +#if defined(HAVE_LINUX_XATTRS) | |
163 | + | |
164 | +ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size) | |
165 | +{ | |
166 | + return lgetxattr(path, name, value, size); | |
167 | +} | |
168 | + | |
169 | +int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size, int flags) | |
170 | +{ | |
171 | + return lsetxattr(path, name, value, size, flags); | |
172 | +} | |
173 | + | |
174 | +ssize_t sys_llistxattr(const char *path, char *list, size_t size) | |
175 | +{ | |
176 | + return llistxattr(path, list, size); | |
177 | +} | |
178 | + | |
179 | +#else | |
180 | + | |
181 | +#endif /* No xattrs */ | |
9a7eef96 WD |
182 | --- old/lib/sysxattr.h |
183 | +++ new/lib/sysxattr.h | |
bbdff76a WD |
184 | @@ -0,0 +1,9 @@ |
185 | +#if defined(HAVE_LINUX_XATTRS) | |
186 | + | |
187 | +ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size); | |
188 | +int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size, int flags); | |
189 | +ssize_t sys_llistxattr(const char *path, char *list, size_t size); | |
190 | + | |
191 | +#else | |
192 | + | |
193 | +#endif /* No xattrs */ | |
9a7eef96 WD |
194 | --- old/options.c |
195 | +++ new/options.c | |
3731f97b | 196 | @@ -46,6 +46,7 @@ int copy_links = 0; |
bbdff76a WD |
197 | int preserve_links = 0; |
198 | int preserve_hard_links = 0; | |
199 | int preserve_acls = 0; | |
200 | +int preserve_xattrs = 0; | |
201 | int preserve_perms = 0; | |
4a65fe72 | 202 | int preserve_executability = 0; |
bbdff76a | 203 | int preserve_devices = 0; |
afcb578c | 204 | @@ -196,6 +197,7 @@ static void print_rsync_version(enum log |
bbdff76a WD |
205 | char const *have_inplace = "no "; |
206 | char const *hardlinks = "no "; | |
207 | char const *acls = "no "; | |
208 | + char const *xattrs = "no "; | |
209 | char const *links = "no "; | |
210 | char const *ipv6 = "no "; | |
211 | STRUCT_STAT *dumstat; | |
afcb578c | 212 | @@ -215,7 +217,9 @@ static void print_rsync_version(enum log |
bbdff76a WD |
213 | #ifdef SUPPORT_ACLS |
214 | acls = ""; | |
215 | #endif | |
216 | - | |
217 | +#ifdef SUPPORT_XATTRS | |
218 | + xattrs = ""; | |
219 | +#endif | |
220 | #ifdef SUPPORT_LINKS | |
221 | links = ""; | |
222 | #endif | |
afcb578c | 223 | @@ -229,9 +233,9 @@ static void print_rsync_version(enum log |
3b05e91f | 224 | rprintf(f, "Copyright (C) 1996-2006 by Andrew Tridgell, Wayne Davison, and others.\n"); |
bbdff76a WD |
225 | rprintf(f, "<http://rsync.samba.org/>\n"); |
226 | rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, " | |
bc5988ec WD |
227 | - "%shard links, %sACLs, %ssymlinks, batchfiles,\n", |
228 | + "%shard links, %sACLs, %sxattrs, %ssymlinks, batchfiles,\n", | |
bbdff76a WD |
229 | (int) (sizeof (OFF_T) * 8), |
230 | - got_socketpair, hardlinks, acls, links); | |
231 | + got_socketpair, hardlinks, acls, xattrs, links); | |
232 | ||
233 | /* Note that this field may not have type ino_t. It depends | |
234 | * on the complicated interaction between largefile feature | |
3731f97b | 235 | @@ -304,6 +308,9 @@ void usage(enum logcode F) |
3610c43c | 236 | #ifdef SUPPORT_ACLS |
bbdff76a | 237 | rprintf(F," -A, --acls preserve ACLs (implies --perms)\n"); |
3610c43c WD |
238 | #endif |
239 | +#ifdef SUPPORT_XATTRS | |
bbdff76a | 240 | + rprintf(F," -X, --xattrs preserve extended attributes (implies --perms)\n"); |
3610c43c | 241 | +#endif |
4a65fe72 WD |
242 | rprintf(F," --chmod=CHMOD change destination permissions\n"); |
243 | rprintf(F," -o, --owner preserve owner (super-user only)\n"); | |
bbdff76a | 244 | rprintf(F," -g, --group preserve group\n"); |
3731f97b | 245 | @@ -422,6 +429,9 @@ static struct poptOption long_options[] |
489b0a72 WD |
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 }, | |
3731f97b | 255 | @@ -1096,6 +1106,17 @@ int parse_arguments(int *argc, const cha |
489b0a72 | 256 | return 0; |
3610c43c | 257 | #endif |
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() | |
3731f97b | 273 | @@ -1544,6 +1565,10 @@ void server_options(char **args,int *arg |
bbdff76a WD |
274 | if (preserve_acls) |
275 | argstr[x++] = 'A'; | |
3610c43c WD |
276 | #endif |
277 | +#ifdef SUPPORT_XATTRS | |
bbdff76a WD |
278 | + if (preserve_xattrs) |
279 | + argstr[x++] = 'X'; | |
3610c43c | 280 | +#endif |
bbdff76a WD |
281 | if (preserve_uid) |
282 | argstr[x++] = 'o'; | |
283 | if (preserve_gid) | |
9a7eef96 WD |
284 | --- old/rsync.c |
285 | +++ new/rsync.c | |
3731f97b | 286 | @@ -218,12 +218,15 @@ int set_file_attrs(char *fname, struct f |
e5754c5f WD |
287 | } |
288 | #endif | |
289 | ||
290 | - /* If this is a directory, SET_ACL() will be called on the cleanup | |
291 | - * receive_generator() pass (if we called it here, we might clobber | |
292 | - * writability on the directory). Everything else is OK to do now. */ | |
293 | + /* If this is a directory, SET_ACL() and/or SET_XATTR() will be called | |
294 | + * on the cleanup receive_generator() pass -- if we called it here, we | |
295 | + * might clobber writability on the dir (SELinux security contexts are | |
296 | + * stored in xattrs). Everything else is OK to do now. */ | |
297 | if (!S_ISDIR(st->st_mode)) { | |
bbdff76a WD |
298 | if (SET_ACL(fname, file) == 0) |
299 | updated = 1; | |
bbdff76a | 300 | + if (SET_XATTR(fname, file) == 0) |
e5754c5f WD |
301 | + updated = 1; |
302 | } | |
bbdff76a | 303 | |
4a65fe72 | 304 | if (verbose > 1 && flags & ATTRS_REPORT) { |
9a7eef96 WD |
305 | --- old/rsync.h |
306 | +++ new/rsync.h | |
3731f97b | 307 | @@ -696,6 +696,38 @@ struct chmod_mode_struct; |
bbdff76a WD |
308 | #endif /* SUPPORT_ACLS */ |
309 | #include "smb_acls.h" | |
310 | ||
311 | +#ifdef HAVE_LINUX_XATTRS | |
312 | +#define SUPPORT_XATTRS 1 | |
313 | +#endif | |
314 | + | |
315 | +#ifdef SUPPORT_XATTRS | |
316 | +#ifdef HAVE_ATTR_XATTR_H | |
317 | +#include <attr/xattr.h> | |
318 | +#endif | |
319 | +#define MAKE_XATTR(file, fname) make_xattr(file, fname) | |
320 | +#define SEND_XATTR(file, f) send_xattr(file, f) | |
321 | +#define RECEIVE_XATTR(file, f) receive_xattr(file, f) | |
322 | +#define SORT_FILE_XATTR_INDEX_LISTS() sort_file_xattr_index_lists() | |
323 | +#define SET_XATTR(fname, file) set_xattr(fname, file) | |
324 | +#define NEXT_XATTR_UID() next_xattr_uid() | |
325 | +#define XATTR_UID_MAP(uid) xattr_uid_map(uid) | |
326 | +#define PUSH_KEEP_BACKUP_XATTR(file, orig, dest) \ | |
327 | + push_keep_backup_xattr(file, orig, dest) | |
328 | +#define CLEANUP_KEEP_BACKUP_XATTR() cleanup_keep_backup_xattr() | |
329 | +#define DUP_XATTR(orig, dest) dup_xattr(orig, dest) | |
330 | +#else /* SUPPORT_XATTRS */ | |
331 | +#define MAKE_XATTR(file, fname) 1 /* checked return value */ | |
332 | +#define SEND_XATTR(file, f) | |
333 | +#define RECEIVE_XATTR(file, f) | |
334 | +#define SORT_FILE_XATTR_INDEX_LISTS() | |
e5754c5f | 335 | +#define SET_XATTR(fname, file) 1 /* checked return value */ |
bbdff76a WD |
336 | +#define NEXT_XATTR_UID() |
337 | +#define XATTR_UID_MAP(uid) | |
338 | +#define PUSH_KEEP_BACKUP_XATTR(file, orig, dest) | |
339 | +#define CLEANUP_KEEP_BACKUP_XATTR() | |
e5754c5f | 340 | +#define DUP_XATTR(src, orig) 1 /* checked return value */ |
bbdff76a WD |
341 | +#endif /* SUPPORT_XATTRS */ |
342 | + | |
343 | #include "proto.h" | |
344 | ||
345 | /* We have replacement versions of these if they're missing. */ | |
9a7eef96 WD |
346 | --- old/rsync.yo |
347 | +++ new/rsync.yo | |
3731f97b | 348 | @@ -322,6 +322,7 @@ to the detailed description below for a |
bbdff76a | 349 | -p, --perms preserve permissions |
4a65fe72 WD |
350 | -E, --executability preserve executability |
351 | -A, --acls preserve ACLs (implies -p) [non-standard] | |
352 | + -X, --xattrs preserve extended attrs (implies -p) [n.s.] | |
353 | --chmod=CHMOD change destination permissions | |
354 | -o, --owner preserve owner (super-user only) | |
bbdff76a | 355 | -g, --group preserve group |
3731f97b | 356 | @@ -802,6 +803,11 @@ dit(bf(-A, --acls)) This option causes r |
4a65fe72 WD |
357 | ACLs to be the same as the source ACLs. This nonstandard option only |
358 | works if the remote rsync also supports it. bf(--acls) implies bf(--perms). | |
bbdff76a WD |
359 | |
360 | +dit(bf(-X, --xattrs)) This option causes rsync to update the remote | |
361 | +extended attributes to be the same as the local ones. This will work | |
362 | +only if the remote machine's rsync supports this option also. This is | |
363 | +a non-standard option. | |
364 | + | |
4a65fe72 WD |
365 | dit(bf(--chmod)) This option tells rsync to apply one or more |
366 | comma-separated "chmod" strings to the permission of the files in the | |
367 | transfer. The resulting value is treated as though it was the permissions | |
9a7eef96 WD |
368 | --- old/xattr.c |
369 | +++ new/xattr.c | |
e5754c5f | 370 | @@ -0,0 +1,540 @@ |
bbdff76a WD |
371 | +/* Extended Attribute support for rsync */ |
372 | +/* Copyright (C) 2004 Red Hat, Inc */ | |
373 | +/* Written by Jay Fenlason, vaguely based on the ACLs patch */ | |
374 | + | |
375 | +/* This program is free software; you can redistribute it and/or modify | |
376 | + it under the terms of the GNU General Public License as published by | |
377 | + the Free Software Foundation; either version 2 of the License, or | |
378 | + (at your option) any later version. | |
379 | + | |
380 | + This program is distributed in the hope that it will be useful, | |
381 | + but WITHOUT ANY WARRANTY; without even the implied warranty of | |
382 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
383 | + GNU General Public License for more details. | |
384 | + | |
385 | + You should have received a copy of the GNU General Public License | |
386 | + along with this program; if not, write to the Free Software | |
387 | + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
388 | +*/ | |
389 | + | |
390 | +#include "rsync.h" | |
391 | +#include "lib/sysxattr.h" | |
392 | + | |
393 | +#ifdef SUPPORT_XATTRS | |
394 | + | |
395 | +extern int preserve_xattrs; | |
396 | +extern int dry_run; | |
397 | + | |
398 | +#define RSYNC_XAL_INITIAL 5 | |
399 | +#define RSYNC_XAL_LIST_INITIAL 100 | |
400 | + | |
401 | +typedef struct { | |
402 | + size_t name_len; | |
403 | + char *name; | |
404 | + size_t datum_len; | |
405 | + char *datum; | |
406 | +} rsync_xa; | |
407 | + | |
408 | +typedef struct { | |
409 | + size_t count; | |
410 | + size_t alloc; | |
411 | + rsync_xa *rxas; | |
412 | +} rsync_xal; | |
413 | + | |
414 | +typedef struct { | |
415 | + size_t count; | |
416 | + size_t alloc; | |
417 | + rsync_xal *rxals; | |
418 | +} rsync_xal_list; | |
419 | + | |
420 | +static size_t namebuf_len = 0; | |
421 | +static char *namebuf = NULL; | |
422 | + | |
423 | +static size_t datumbuf_len = 0; | |
424 | +static char *datumbuf = NULL; | |
425 | + | |
426 | +static rsync_xal curr_rsync_xal = { 0, 0, NULL }; | |
427 | +static rsync_xal_list rsync_xal_l = { 0, 0, NULL }; | |
428 | + | |
429 | + | |
430 | +/* ------------------------------------------------------------------------- */ | |
431 | + | |
432 | +/* the below stuff is only used by the receiver */ | |
433 | + | |
434 | +/* structure to hold index to rsync_xal_l member corresponding to | |
435 | + * flist->files[i] */ | |
436 | + | |
437 | +typedef struct { | |
438 | + const struct file_struct *file; | |
439 | + int xalidx; | |
440 | +} file_xal_index; | |
441 | + | |
442 | +typedef struct { | |
443 | + size_t count; | |
444 | + size_t alloc; | |
445 | + file_xal_index *filexalidxs; | |
446 | +} file_xal_index_list; | |
447 | + | |
448 | +static file_xal_index_list fxil = {0, 0, NULL }; | |
449 | + | |
450 | +/* stuff for redirecting calls to set_acl() from set_perms() | |
451 | + * for keep_backup() */ | |
452 | +static const struct file_struct *backup_orig_file = NULL; | |
453 | +static const char null_string[] = ""; | |
454 | +static const char *backup_orig_fname = null_string; | |
455 | +static const char *backup_dest_fname = null_string; | |
456 | +static rsync_xal backup_xal; | |
457 | + | |
458 | +/* ------------------------------------------------------------------------- */ | |
459 | + | |
460 | +static void rsync_xal_free(rsync_xal *x) | |
461 | +{ | |
462 | + size_t i; | |
463 | + | |
464 | + for (i = 0; i < x->count; i++) { | |
465 | + free(x->rxas[i].name); | |
466 | + /* free(x->rxas[i].value); */ | |
467 | + } | |
468 | + x->count = 0; | |
469 | +} | |
470 | + | |
471 | +static int rsync_xal_compare_names(const void *x1, const void *x2) | |
472 | +{ | |
473 | + const rsync_xa *xa1; | |
474 | + const rsync_xa *xa2; | |
475 | + | |
476 | + xa1 = x1; | |
477 | + xa2 = x2; | |
478 | + return strcmp(xa1->name, xa2->name); | |
479 | +} | |
480 | + | |
e5754c5f | 481 | +static int rsync_xal_get(const char *fname, rsync_xal *x) |
bbdff76a WD |
482 | +{ |
483 | + ssize_t name_size; | |
484 | + ssize_t datum_size; | |
485 | + ssize_t left; | |
486 | + char *name; | |
487 | + size_t len; | |
488 | + char *ptr; | |
489 | + | |
490 | + if (!namebuf) { | |
491 | + namebuf_len = 100; | |
492 | + namebuf = new_array(char, namebuf_len); | |
493 | + datumbuf_len = 100; | |
494 | + datumbuf = new_array(char, datumbuf_len); | |
495 | + if (!namebuf || !datumbuf) | |
496 | + out_of_memory("rsync_xal_get"); | |
497 | + } | |
498 | + | |
499 | + name_size = sys_llistxattr(fname, namebuf, namebuf_len); | |
500 | + if (name_size > (ssize_t)namebuf_len) { | |
501 | + name_size = -1; | |
502 | + errno = ERANGE; | |
503 | + } | |
504 | + if (name_size < 0) { | |
505 | + if (errno == ENOTSUP) | |
e5754c5f | 506 | + return -1; |
bbdff76a WD |
507 | + if (errno == ERANGE) { |
508 | + name_size = sys_llistxattr(fname, NULL, 0); | |
509 | + if (name_size < 0) { | |
510 | + rprintf(FERROR, "%s: rsync_xal_get: llistxattr: %s\n", | |
e5754c5f WD |
511 | + fname, strerror(errno)); |
512 | + return -1; | |
bbdff76a WD |
513 | + } |
514 | + namebuf = realloc_array(namebuf, char, name_size + 1); | |
515 | + if (!namebuf) | |
516 | + out_of_memory("rsync_xal_get"); | |
517 | + namebuf_len = name_size; | |
518 | + name_size = sys_llistxattr(fname, namebuf, namebuf_len); | |
519 | + if (name_size < 0) { | |
520 | + rprintf(FERROR, | |
521 | + "%s: rsync_xal_get: re-llistxattr failed: %s\n", | |
522 | + fname, strerror(errno)); | |
e5754c5f | 523 | + return -1; |
bbdff76a WD |
524 | + } |
525 | + } else { | |
526 | + rprintf(FERROR, | |
527 | + "%s: rsync_xal_get: llistxattr failed: %s\n", | |
528 | + fname, strerror(errno)); | |
e5754c5f | 529 | + return -1; |
bbdff76a WD |
530 | + } |
531 | + } | |
532 | + rsync_xal_free(x); | |
533 | + if (name_size == 0) | |
e5754c5f | 534 | + return 0; |
bbdff76a WD |
535 | + for (left = name_size, name = namebuf; left > 0 ; left -= len, name += len) { |
536 | + len = strlen(name) + 1; | |
537 | + | |
538 | + if (x->count >= x->alloc) { | |
539 | + size_t new_alloc; | |
540 | + rsync_xa *new_rxas; | |
541 | + | |
542 | + new_alloc = x->alloc < RSYNC_XAL_INITIAL ? RSYNC_XAL_INITIAL : x->alloc * 2; | |
543 | + new_rxas = realloc_array(x->rxas, rsync_xa, new_alloc); | |
544 | + if (!new_rxas) | |
545 | + out_of_memory("rsync_xal_get"); | |
546 | + x->alloc = new_alloc; | |
547 | + x->rxas = new_rxas; | |
548 | + } | |
549 | + datum_size = sys_lgetxattr(fname, name, datumbuf, datumbuf_len); | |
550 | + if (datum_size > (ssize_t)datumbuf_len) { | |
551 | + datum_size = -1; | |
552 | + errno = ERANGE; | |
553 | + } | |
554 | + if (datum_size < 0) { | |
555 | + if (errno == ENOTSUP) | |
e5754c5f | 556 | + return -1; |
bbdff76a WD |
557 | + if (errno == ERANGE) { |
558 | + datum_size = sys_lgetxattr(fname, name, NULL, 0); | |
559 | + if (datum_size < 0) { | |
560 | + rprintf(FERROR, | |
561 | + "%s: rsync_xal_get: lgetxattr %s failed: %s\n", | |
562 | + fname, name, strerror(errno)); | |
e5754c5f | 563 | + return -1; |
bbdff76a WD |
564 | + } |
565 | + datumbuf = realloc_array(datumbuf, char, datum_size + 1); | |
566 | + if (!datumbuf) | |
567 | + out_of_memory("rsync_xal_get"); | |
568 | + datumbuf_len = datum_size; | |
569 | + datum_size = sys_lgetxattr(fname, name, datumbuf, datumbuf_len); | |
570 | + if (datum_size < 0) { | |
571 | + rprintf(FERROR, | |
572 | + "%s: rsync_xal_get: re-lgetxattr of %s failed: %s\n", | |
573 | + name, fname, strerror(errno)); | |
e5754c5f | 574 | + return -1; |
bbdff76a WD |
575 | + } |
576 | + } else { | |
577 | + rprintf(FERROR, | |
578 | + "%s: rsync_xal_get: lgetxattr %s failed: %s\n", | |
579 | + fname, name, strerror(errno)); | |
e5754c5f | 580 | + return -1; |
bbdff76a WD |
581 | + } |
582 | + } | |
583 | + ptr = new_array(char, len + datum_size); | |
584 | + if (!ptr) | |
585 | + out_of_memory("rsync_xal_get"); | |
586 | + strcpy(ptr, name); | |
587 | + if (datum_size) | |
588 | + memcpy(ptr + len, datumbuf, datum_size); | |
589 | + x->rxas[curr_rsync_xal.count].name_len = len; | |
590 | + x->rxas[curr_rsync_xal.count].name = ptr; | |
591 | + x->rxas[curr_rsync_xal.count].datum_len = datum_size; | |
592 | + x->rxas[curr_rsync_xal.count].datum = ptr + len; | |
593 | + x->count++; | |
594 | + } | |
595 | + if (x->count > 1) { | |
596 | + qsort(x->rxas, x->count, sizeof (rsync_xa), rsync_xal_compare_names); | |
597 | + } | |
e5754c5f | 598 | + return 0; |
bbdff76a WD |
599 | +} |
600 | + | |
601 | + | |
602 | +/* generate the xattr(s) for this flist entry; | |
603 | + * xattr(s) are either sent or cleaned-up by send_xattr() below */ | |
604 | + | |
e5754c5f | 605 | +int make_xattr(const struct file_struct *file, const char *fname) |
bbdff76a | 606 | +{ |
a8801c39 | 607 | + if (!preserve_xattrs || !file) |
e5754c5f | 608 | + return 1; |
bbdff76a WD |
609 | + |
610 | + rsync_xal_get(fname, &curr_rsync_xal); | |
e5754c5f | 611 | + return 0; /* TODO: This needs to return 1 if no xattrs changed! */ |
bbdff76a WD |
612 | +} |
613 | + | |
614 | +static ssize_t rsync_xal_find_matching(void) | |
615 | +{ | |
616 | + size_t i; | |
617 | + size_t j; | |
618 | + | |
619 | + for (i = 0; i < rsync_xal_l.count; i++) { | |
620 | + /* Wrong number of elements? */ | |
621 | + if (rsync_xal_l.rxals[i].count != curr_rsync_xal.count) | |
622 | + continue; | |
623 | + /* any elements different? */ | |
624 | + for (j = 0; j < curr_rsync_xal.count; j++) { | |
625 | + if (rsync_xal_l.rxals[i].rxas[j].name_len != curr_rsync_xal.rxas[j].name_len | |
626 | + || rsync_xal_l.rxals[i].rxas[j].datum_len != curr_rsync_xal.rxas[j].datum_len | |
627 | + || strcmp(rsync_xal_l.rxals[i].rxas[j].name, curr_rsync_xal.rxas[j].name) | |
628 | + || memcmp(rsync_xal_l.rxals[i].rxas[j].datum, curr_rsync_xal.rxas[j].datum, curr_rsync_xal.rxas[j].datum_len)) | |
629 | + break; | |
630 | + } | |
631 | + /* no differences found. This is The One! */ | |
632 | + if (j == curr_rsync_xal.count) | |
633 | + break; | |
634 | + } | |
635 | + if (i < rsync_xal_l.count) | |
636 | + return i; | |
637 | + return (ssize_t)-1; | |
638 | +} | |
639 | + | |
640 | +/* Store curr_rsync_xal on the end of rsync_xal_l */ | |
641 | +static void rsync_xal_store(void) | |
642 | +{ | |
643 | + if (rsync_xal_l.count <= rsync_xal_l.alloc) { | |
644 | + size_t new_alloc; | |
645 | + void *new_xal; | |
646 | + | |
647 | + new_alloc = rsync_xal_l.count < RSYNC_XAL_LIST_INITIAL ? RSYNC_XAL_LIST_INITIAL : rsync_xal_l.count * 2; | |
648 | + new_xal = realloc_array(rsync_xal_l.rxals, rsync_xal, new_alloc); | |
649 | + if (!new_xal) | |
650 | + out_of_memory("rsync_xal_store"); | |
651 | + rsync_xal_l.alloc = new_alloc; | |
652 | + rsync_xal_l.rxals = new_xal; | |
653 | + } | |
654 | + rsync_xal_l.rxals[rsync_xal_l.count] = curr_rsync_xal; | |
655 | + rsync_xal_l.count++; | |
656 | + curr_rsync_xal.count = 0; | |
657 | + curr_rsync_xal.alloc = 0; | |
658 | +} | |
659 | + | |
660 | +/* send the make_xattr()-generated xattr list for this flist entry, | |
661 | + * or clean up after an flist entry that's not being sent (f == -1) */ | |
662 | + | |
663 | +void send_xattr(const struct file_struct *file, int f) | |
664 | +{ | |
665 | + ssize_t index; | |
666 | + | |
a8801c39 | 667 | + if (!preserve_xattrs || !file) |
bbdff76a WD |
668 | + return; |
669 | + | |
670 | + if (f == -1) { | |
671 | + rsync_xal_free(&curr_rsync_xal); | |
672 | + return; | |
673 | + } | |
674 | + index = rsync_xal_find_matching(); | |
675 | + if (index != -1) { | |
676 | + write_byte(f, 'x'); | |
677 | + write_int(f, index); | |
678 | + rsync_xal_free(&curr_rsync_xal); | |
679 | + } else { | |
680 | + rsync_xa *rxa; | |
681 | + size_t count; | |
682 | + | |
683 | + count = curr_rsync_xal.count; | |
684 | + write_byte(f, 'X'); | |
685 | + write_int(f, count); | |
686 | + for (rxa = curr_rsync_xal.rxas; count--; rxa++) { | |
687 | + write_int(f, rxa->name_len); | |
688 | + write_int(f, rxa->datum_len); | |
689 | + write_buf(f, rxa->name, rxa->name_len); | |
690 | + write_buf(f, rxa->datum, rxa->datum_len); | |
691 | + } | |
692 | + rsync_xal_store(); | |
693 | + } | |
694 | +} | |
695 | + | |
696 | + | |
697 | +/* ------------------------------------------------------------------------- */ | |
698 | +/* receive and build the rsync_xattr_lists */ | |
699 | + | |
700 | +void receive_xattr(struct file_struct *file, int f) | |
701 | +{ | |
702 | + char *fname; | |
703 | + int tag; | |
704 | + | |
705 | + if (!preserve_xattrs) | |
706 | + return; | |
bd68c3c2 | 707 | + fname = f_name(file, NULL); |
bbdff76a WD |
708 | + tag = read_byte(f); |
709 | + if (tag != 'X' && tag != 'x') { | |
710 | + rprintf(FERROR, | |
711 | + "%s: receive_xattr: unknown extended attribute type tag: %c\n", | |
712 | + fname, tag); | |
713 | + exit_cleanup(RERR_STREAMIO); | |
714 | + } | |
715 | + | |
716 | + if (fxil.alloc <= fxil.count) { | |
717 | + void *new_ptr; | |
718 | + size_t new_alloc; | |
719 | + | |
720 | + if (fxil.count < RSYNC_XAL_LIST_INITIAL) | |
721 | + new_alloc = fxil.alloc + RSYNC_XAL_LIST_INITIAL; | |
722 | + else | |
723 | + new_alloc = fxil.alloc * 2; | |
724 | + new_ptr = realloc_array(fxil.filexalidxs, file_xal_index, new_alloc); | |
725 | + if (!new_ptr) | |
726 | + out_of_memory("receive_xattr"); | |
727 | + if (verbose >= 3) { | |
728 | + rprintf(FINFO, "receive_xattr to %lu bytes, %s move\n", | |
729 | + (unsigned long)(new_alloc * sizeof (file_xal_index)), | |
730 | + fxil.filexalidxs == new_ptr ? "did not" : "did"); | |
731 | + } | |
732 | + | |
733 | + fxil.filexalidxs = new_ptr; | |
734 | + fxil.alloc = new_alloc; | |
735 | + } | |
736 | + | |
737 | + fxil.filexalidxs[fxil.count].file = file; | |
738 | + if (tag == 'X') { | |
739 | + size_t count; | |
740 | + size_t i; | |
741 | + | |
742 | + fxil.filexalidxs[fxil.count].xalidx = rsync_xal_l.count; | |
743 | + | |
744 | + count = read_int(f); | |
745 | + curr_rsync_xal.count = count; | |
746 | + curr_rsync_xal.alloc = count; | |
747 | + curr_rsync_xal.rxas = new_array(rsync_xa, count); | |
748 | + if (!curr_rsync_xal.rxas) | |
749 | + out_of_memory("receive_xattr"); | |
750 | + for (i = 0; i < count; i++) { | |
751 | + size_t name_len; | |
752 | + size_t datum_len; | |
753 | + char *ptr; | |
754 | + | |
755 | + name_len = read_int(f); | |
756 | + datum_len = read_int(f); | |
757 | + ptr = new_array(char, name_len + datum_len); | |
758 | + if (!ptr) | |
759 | + out_of_memory("receive_xattr"); | |
760 | + read_buf(f, ptr, name_len); | |
761 | + read_buf(f, ptr + name_len, datum_len); | |
762 | + curr_rsync_xal.rxas[i].name_len = name_len; | |
763 | + curr_rsync_xal.rxas[i].datum_len = datum_len; | |
764 | + curr_rsync_xal.rxas[i].name = ptr; | |
765 | + curr_rsync_xal.rxas[i].datum = ptr + name_len; | |
766 | + } | |
767 | + rsync_xal_store(); | |
768 | + } else { | |
769 | + size_t index; | |
770 | + | |
771 | + index = read_int(f); | |
772 | + if (index >= rsync_xal_l.count) { | |
773 | + rprintf(FERROR, "%s: receive_xattr: xa index %lu out of range\n", | |
e5754c5f | 774 | + fname, (unsigned long)index); |
bbdff76a WD |
775 | + exit_cleanup(RERR_STREAMIO); |
776 | + } | |
777 | + fxil.filexalidxs[fxil.count].xalidx = index; | |
778 | + } | |
779 | + fxil.count++; | |
780 | +} | |
781 | + | |
e5754c5f | 782 | +static int rsync_xal_set(const char *fname, rsync_xal *x) |
bbdff76a WD |
783 | +{ |
784 | + size_t i; | |
e5754c5f | 785 | + int ret = 0; |
bbdff76a | 786 | + |
bbdff76a | 787 | + for (i = 0; i < x->count; i++) { |
e5754c5f | 788 | + int status = sys_lsetxattr(fname, x->rxas[i].name, x->rxas[i].datum, x->rxas[i].datum_len, 0); |
bbdff76a WD |
789 | + if (status < 0) { |
790 | + rprintf(FERROR, "%s: rsync_xal_set: lsetxattr %s failed: %s\n", | |
791 | + fname, x->rxas[i].name, strerror(errno)); | |
e5754c5f | 792 | + ret = -1; |
bbdff76a WD |
793 | + } |
794 | + } | |
795 | + return ret; | |
796 | +} | |
797 | + | |
798 | +/* for duplicating xattrs on backups when using backup_dir */ | |
799 | + | |
800 | +int dup_xattr(const char *orig, const char *bak) | |
801 | +{ | |
802 | + int ret; | |
803 | + | |
bbdff76a | 804 | + if (!preserve_xattrs) |
e5754c5f | 805 | + return 1; |
bbdff76a | 806 | + |
e5754c5f | 807 | + if (rsync_xal_get(orig, &backup_xal) < 0) |
bbdff76a | 808 | + ret = rsync_xal_set(bak, &backup_xal); |
e5754c5f WD |
809 | + else |
810 | + ret = 0; | |
bbdff76a WD |
811 | + rsync_xal_free(&backup_xal); |
812 | + return ret; | |
813 | +} | |
814 | + | |
815 | +void push_keep_backup_xattr(const struct file_struct *file, const char *orig, const char *dest) | |
816 | +{ | |
817 | + if (!preserve_xattrs) | |
818 | + return; | |
819 | + | |
820 | + backup_orig_file = file; | |
821 | + backup_orig_fname = orig; | |
822 | + backup_dest_fname = dest; | |
823 | + rsync_xal_get(orig, &backup_xal); | |
824 | +} | |
825 | + | |
826 | +static int set_keep_backup_xal(void) | |
827 | +{ | |
828 | + if (!preserve_xattrs) | |
e5754c5f | 829 | + return 1; |
bbdff76a WD |
830 | + return rsync_xal_set(backup_dest_fname, &backup_xal); |
831 | +} | |
832 | + | |
833 | +void cleanup_keep_backup_xattr(void) | |
834 | +{ | |
835 | + if (!preserve_xattrs) | |
836 | + return; | |
837 | + | |
838 | + backup_orig_file = NULL; | |
839 | + backup_orig_fname = null_string; | |
840 | + backup_dest_fname = null_string; | |
841 | + rsync_xal_free(&backup_xal); | |
842 | +} | |
843 | + | |
844 | +static int file_xal_index_compare(const void *x1, const void *x2) | |
845 | +{ | |
846 | + const file_xal_index *xa1; | |
847 | + const file_xal_index *xa2; | |
848 | + | |
849 | + xa1 = x1; | |
850 | + xa2 = x2; | |
851 | + return xa1->file == xa2->file ? 0 : xa1->file < xa2->file ? -1 : 1; | |
852 | +} | |
853 | + | |
854 | +void sort_file_xattr_index_lists(void) | |
855 | +{ | |
856 | + if (!preserve_xattrs) | |
857 | + return; | |
858 | + qsort(fxil.filexalidxs, fxil.count, sizeof (file_xal_index), file_xal_index_compare); | |
859 | +} | |
860 | + | |
861 | +static int find_file_xal_index(const struct file_struct *file) | |
862 | +{ | |
863 | + int low = 0, high = fxil.count; | |
864 | + const struct file_struct *file_mid; | |
865 | + | |
866 | + if (!high--) { | |
867 | + rprintf(FERROR, "find_file_xal_index: no entries\n"); | |
868 | + exit_cleanup(RERR_STREAMIO); | |
869 | + return -1; | |
870 | + } | |
871 | + do { | |
872 | + int mid = (high + low) / 2; | |
873 | + file_mid = fxil.filexalidxs[mid].file; | |
874 | + if (file_mid == file) | |
875 | + return fxil.filexalidxs[mid].xalidx; | |
876 | + if (file_mid > file) | |
877 | + high = mid - 1; | |
878 | + else | |
879 | + low = mid + 1; | |
880 | + } while (low < high); | |
881 | + if (low == high) { | |
882 | + file_mid = fxil.filexalidxs[low].file; | |
883 | + if (file_mid == file) | |
884 | + return fxil.filexalidxs[low].xalidx; | |
885 | + } | |
886 | + rprintf(FERROR, | |
887 | + "find_file_xal_index: can't find entry for file in list\n"); | |
888 | + exit_cleanup(RERR_STREAMIO); | |
889 | + return -1; | |
890 | +} | |
891 | + | |
bbdff76a WD |
892 | +/* set extended attributes on rsync-ed or keep_backup-ed file */ |
893 | + | |
894 | +int set_xattr(const char *fname, const struct file_struct *file) | |
895 | +{ | |
bbdff76a WD |
896 | + int xalidx; |
897 | + rsync_xal *x; | |
898 | + | |
bbdff76a | 899 | + if (dry_run || !preserve_xattrs) |
e5754c5f | 900 | + return 1; |
bbdff76a WD |
901 | + if (file == backup_orig_file) { |
902 | + if (!strcmp(fname, backup_dest_fname)) | |
903 | + return set_keep_backup_xal(); | |
904 | + } | |
905 | + xalidx = find_file_xal_index(file); | |
906 | + x = &(rsync_xal_l.rxals[xalidx]); | |
e5754c5f | 907 | + return rsync_xal_set(fname, x); |
bbdff76a WD |
908 | +} |
909 | + | |
910 | +#endif /* SUPPORT_XATTRS */ |