Commit | Line | Data |
---|---|---|
e6e3f12f | 1 | /* |
2f03f956 AT |
2 | Copyright (C) Andrew Tridgell 1996 |
3 | Copyright (C) Paul Mackerras 1996 | |
e6e3f12f | 4 | |
2f03f956 AT |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
e6e3f12f | 9 | |
2f03f956 AT |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
e6e3f12f | 14 | |
2f03f956 AT |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
18 | */ | |
19 | ||
20 | #include "rsync.h" | |
21 | ||
22 | extern int verbose; | |
7f37167d | 23 | extern int dry_run; |
8715db2c WD |
24 | extern int am_server; |
25 | extern int am_daemon; | |
8a9cfb24 | 26 | extern int log_before_transfer; |
7f37167d WD |
27 | extern int log_format_has_i; |
28 | extern int daemon_log_format_has_i; | |
2f03f956 | 29 | extern int csum_length; |
2f03f956 | 30 | extern int io_error; |
d6631cf3 | 31 | extern int protocol_version; |
95306d9d | 32 | extern int remove_sent_files; |
53f8519a | 33 | extern int updating_basis_file; |
8b115ac8 | 34 | extern int make_backups; |
8a9cfb24 | 35 | extern int do_progress; |
53f8519a | 36 | extern int inplace; |
a3221d2a | 37 | extern struct stats stats; |
5f40615c | 38 | extern struct file_list *the_file_list; |
8715db2c | 39 | extern char *log_format; |
2f03f956 AT |
40 | |
41 | ||
0f9c48b1 MP |
42 | /** |
43 | * @file | |
44 | * | |
45 | * The sender gets checksums from the generator, calculates deltas, | |
46 | * and transmits them to the receiver. The sender process runs on the | |
47 | * machine holding the source files. | |
48 | **/ | |
fc0257c9 | 49 | |
ce8149b6 MP |
50 | /** |
51 | * Receive the checksums for a buffer | |
52 | **/ | |
2f03f956 AT |
53 | static struct sum_struct *receive_sums(int f) |
54 | { | |
55 | struct sum_struct *s; | |
a1cbe76e | 56 | int32 i; |
2f03f956 AT |
57 | OFF_T offset = 0; |
58 | ||
a3221d2a WD |
59 | if (!(s = new(struct sum_struct))) |
60 | out_of_memory("receive_sums"); | |
2f03f956 | 61 | |
fc0257c9 S |
62 | read_sum_head(f, s); |
63 | ||
2f03f956 AT |
64 | s->sums = NULL; |
65 | ||
da9d12f5 | 66 | if (verbose > 3) { |
6c495e0d WD |
67 | rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n", |
68 | (double)s->count, (long)s->blength, (long)s->remainder); | |
da9d12f5 | 69 | } |
2f03f956 | 70 | |
e6e3f12f | 71 | if (s->count == 0) |
2f03f956 AT |
72 | return(s); |
73 | ||
a3221d2a WD |
74 | if (!(s->sums = new_array(struct sum_buf, s->count))) |
75 | out_of_memory("receive_sums"); | |
2f03f956 | 76 | |
eed47b6b | 77 | for (i = 0; i < s->count; i++) { |
2f03f956 | 78 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 79 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
80 | |
81 | s->sums[i].offset = offset; | |
a3221d2a | 82 | s->sums[i].flags = 0; |
2f03f956 | 83 | |
eed47b6b | 84 | if (i == s->count-1 && s->remainder != 0) |
2f03f956 | 85 | s->sums[i].len = s->remainder; |
a3221d2a | 86 | else |
fc0257c9 | 87 | s->sums[i].len = s->blength; |
2f03f956 AT |
88 | offset += s->sums[i].len; |
89 | ||
a3221d2a WD |
90 | if (verbose > 3) { |
91 | rprintf(FINFO, | |
92 | "chunk[%d] len=%d offset=%.0f sum1=%08x\n", | |
93 | i, s->sums[i].len, (double)s->sums[i].offset, | |
94 | s->sums[i].sum1); | |
95 | } | |
2f03f956 AT |
96 | } |
97 | ||
98 | s->flength = offset; | |
99 | ||
100 | return s; | |
101 | } | |
102 | ||
5f40615c | 103 | void successful_send(int ndx) |
95306d9d WD |
104 | { |
105 | char fname[MAXPATHLEN]; | |
106 | struct file_struct *file; | |
107 | unsigned int offset; | |
108 | ||
5f40615c | 109 | if (ndx < 0 || ndx >= the_file_list->count) |
95306d9d WD |
110 | return; |
111 | ||
5f40615c | 112 | file = the_file_list->files[ndx]; |
95306d9d WD |
113 | /* The generator might tell us about symlinks we didn't send. */ |
114 | if (!(file->flags & FLAG_SENT) && !S_ISLNK(file->mode)) | |
115 | return; | |
116 | if (file->dir.root) { | |
117 | offset = stringjoin(fname, sizeof fname, | |
118 | file->dir.root, "/", NULL); | |
119 | } else | |
120 | offset = 0; | |
121 | f_name_to(file, fname + offset); | |
122 | if (remove_sent_files && do_unlink(fname) == 0 && verbose > 1) { | |
123 | rprintf(FINFO, "sender removed %s\n", | |
124 | safe_fname(fname + offset)); | |
125 | } | |
126 | } | |
2f03f956 | 127 | |
927c8068 WD |
128 | static void write_ndx_and_attrs(int f_out, int ndx, int iflags, |
129 | uchar fnamecmp_type, char *buf, int len) | |
4d53c4dd WD |
130 | { |
131 | write_int(f_out, ndx); | |
132 | if (protocol_version < 29) | |
133 | return; | |
134 | write_shortint(f_out, iflags); | |
135 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) | |
136 | write_byte(f_out, fnamecmp_type); | |
927c8068 | 137 | if (iflags & ITEM_XNAME_FOLLOWS) |
4d53c4dd | 138 | write_vstring(f_out, buf, len); |
4d53c4dd WD |
139 | } |
140 | ||
165e6d44 | 141 | /* This is also used by receive.c with f_out = -1. */ |
6087ef2a WD |
142 | int read_item_attrs(int f_in, int f_out, int ndx, uchar *type_ptr, |
143 | char *buf, int *len_ptr) | |
165e6d44 | 144 | { |
fad3dc42 | 145 | int len; |
4d53c4dd | 146 | uchar fnamecmp_type = FNAMECMP_FNAME; |
165e6d44 | 147 | int iflags = protocol_version >= 29 ? read_shortint(f_in) |
fad3dc42 | 148 | : ITEM_TRANSFER | ITEM_MISSING_DATA; |
165e6d44 WD |
149 | |
150 | /* Handle the new keep-alive (no-op) packet. */ | |
151 | if (ndx == the_file_list->count && iflags == ITEM_IS_NEW) | |
152 | ; | |
153 | else if (ndx < 0 || ndx >= the_file_list->count) { | |
927c8068 | 154 | rprintf(FERROR, "Invalid file index: %d (count=%d) [%s]\n", |
165e6d44 WD |
155 | ndx, the_file_list->count, who_am_i()); |
156 | exit_cleanup(RERR_PROTOCOL); | |
157 | } else if (iflags == ITEM_IS_NEW) { | |
927c8068 WD |
158 | rprintf(FERROR, "Invalid itemized flag word: %x [%s]\n", |
159 | iflags, who_am_i()); | |
165e6d44 WD |
160 | exit_cleanup(RERR_PROTOCOL); |
161 | } | |
162 | ||
4d53c4dd WD |
163 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) |
164 | fnamecmp_type = read_byte(f_in); | |
165 | *type_ptr = fnamecmp_type; | |
166 | ||
167 | if (iflags & ITEM_XNAME_FOLLOWS) { | |
168 | if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0) | |
169 | exit_cleanup(RERR_PROTOCOL); | |
170 | } else { | |
fad3dc42 WD |
171 | *buf = '\0'; |
172 | len = -1; | |
173 | } | |
6087ef2a | 174 | *len_ptr = len; |
fad3dc42 | 175 | |
fad3dc42 WD |
176 | if (iflags & ITEM_TRANSFER) { |
177 | if (!S_ISREG(the_file_list->files[ndx]->mode)) { | |
178 | rprintf(FERROR, | |
927c8068 | 179 | "received request to transfer non-regular file: %d [%s]\n", |
fad3dc42 WD |
180 | ndx, who_am_i()); |
181 | exit_cleanup(RERR_PROTOCOL); | |
182 | } | |
183 | } else if (f_out >= 0) { | |
11290705 | 184 | write_ndx_and_attrs(f_out, ndx, iflags, |
927c8068 | 185 | fnamecmp_type, buf, len); |
165e6d44 WD |
186 | } |
187 | ||
188 | return iflags; | |
189 | } | |
190 | ||
e6e3f12f S |
191 | void send_files(struct file_list *flist, int f_out, int f_in) |
192 | { | |
c1659c79 | 193 | int fd = -1; |
2f03f956 | 194 | struct sum_struct *s; |
41cc97ae | 195 | struct map_struct *mbuf = NULL; |
2f03f956 | 196 | STRUCT_STAT st; |
ecc81fce | 197 | char *fname2, fname[MAXPATHLEN]; |
6087ef2a | 198 | char xname[MAXPATHLEN]; |
4d53c4dd | 199 | uchar fnamecmp_type; |
6087ef2a | 200 | int iflags, xlen; |
2f03f956 | 201 | struct file_struct *file; |
11290705 | 202 | int phase = 0, max_phase = protocol_version >= 29 ? 2 : 1; |
1b7c47cb | 203 | struct stats initial_stats; |
8b115ac8 | 204 | int save_make_backups = make_backups; |
7f37167d WD |
205 | int itemizing = am_daemon ? daemon_log_format_has_i |
206 | : !am_server && log_format_has_i; | |
8a9cfb24 | 207 | int i, j; |
2f03f956 AT |
208 | |
209 | if (verbose > 2) | |
e6e3f12f | 210 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 211 | |
2f03f956 | 212 | while (1) { |
3fef5364 | 213 | unsigned int offset; |
2f03f956 AT |
214 | |
215 | i = read_int(f_in); | |
216 | if (i == -1) { | |
11290705 | 217 | if (++phase > max_phase) |
8b48bf11 | 218 | break; |
8b48bf11 WD |
219 | csum_length = SUM_LENGTH; |
220 | if (verbose > 2) | |
221 | rprintf(FINFO, "send_files phase=%d\n", phase); | |
222 | write_int(f_out, -1); | |
223 | /* For inplace: redo phase turns off the backup | |
224 | * flag so that we do a regular inplace send. */ | |
225 | make_backups = 0; | |
226 | continue; | |
2f03f956 AT |
227 | } |
228 | ||
6087ef2a WD |
229 | iflags = read_item_attrs(f_in, f_out, i, &fnamecmp_type, |
230 | xname, &xlen); | |
165e6d44 WD |
231 | if (iflags == ITEM_IS_NEW) /* no-op packet */ |
232 | continue; | |
2f03f956 | 233 | |
8a9cfb24 | 234 | file = flist->files[i]; |
7f37167d WD |
235 | if (file->dir.root) { |
236 | /* N.B. We're sure that this fits, so offset is OK. */ | |
237 | offset = strlcpy(fname, file->dir.root, sizeof fname); | |
238 | if (!offset || fname[offset-1] != '/') | |
239 | fname[offset++] = '/'; | |
240 | } else | |
241 | offset = 0; | |
242 | fname2 = f_name_to(file, fname + offset); | |
243 | ||
244 | if (verbose > 2) | |
245 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
8a9cfb24 | 246 | |
fad3dc42 | 247 | if (!(iflags & ITEM_TRANSFER)) { |
6087ef2a | 248 | maybe_log_item(file, iflags, itemizing, xname); |
165e6d44 WD |
249 | continue; |
250 | } | |
11290705 WD |
251 | if (phase == 2) { |
252 | rprintf(FERROR, | |
253 | "got transfer request in phase 2 [%s]\n", | |
254 | who_am_i()); | |
255 | exit_cleanup(RERR_PROTOCOL); | |
256 | } | |
8a9cfb24 | 257 | |
6087ef2a WD |
258 | updating_basis_file = inplace && (protocol_version >= 29 |
259 | ? fnamecmp_type == FNAMECMP_FNAME : !make_backups); | |
b951e023 | 260 | |
97feb557 | 261 | stats.current_file_index = i; |
2f03f956 AT |
262 | stats.num_transferred_files++; |
263 | stats.total_transferred_size += file->length; | |
264 | ||
a8ed4958 | 265 | if (dry_run) { /* log the transfer */ |
8a832465 | 266 | if (!am_server && log_format) |
b694f8a2 | 267 | log_item(file, &stats, iflags, NULL); |
927c8068 WD |
268 | write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type, |
269 | xname, xlen); | |
2f03f956 AT |
270 | continue; |
271 | } | |
272 | ||
1b7c47cb AT |
273 | initial_stats = stats; |
274 | ||
efa95a18 | 275 | if (!(s = receive_sums(f_in))) { |
06c28400 | 276 | io_error |= IOERR_GENERAL; |
e6e3f12f | 277 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
278 | return; |
279 | } | |
76f79ba7 | 280 | |
b9f592fb WD |
281 | fd = do_open(fname, O_RDONLY, 0); |
282 | if (fd == -1) { | |
283 | if (errno == ENOENT) { | |
284 | enum logcode c = am_daemon | |
285 | && protocol_version < 28 ? FERROR | |
286 | : FINFO; | |
287 | io_error |= IOERR_VANISHED; | |
288 | rprintf(c, "file has vanished: %s\n", | |
289 | full_fname(fname)); | |
290 | } else { | |
06c28400 | 291 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
292 | rsyserr(FERROR, errno, |
293 | "send_files failed to open %s", | |
294 | full_fname(fname)); | |
41cc97ae | 295 | } |
b9f592fb WD |
296 | free_sums(s); |
297 | continue; | |
298 | } | |
e6e3f12f | 299 | |
b9f592fb WD |
300 | /* map the local file */ |
301 | if (do_fstat(fd, &st) != 0) { | |
302 | io_error |= IOERR_GENERAL; | |
303 | rsyserr(FERROR, errno, "fstat failed"); | |
304 | free_sums(s); | |
305 | close(fd); | |
306 | return; | |
307 | } | |
11a5a3c7 | 308 | |
96d910c7 | 309 | if (st.st_size) { |
9b919d59 WD |
310 | int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE); |
311 | mbuf = map_file(fd, st.st_size, read_size, s->blength); | |
96d910c7 WD |
312 | } else |
313 | mbuf = NULL; | |
6902ed17 | 314 | |
b9f592fb WD |
315 | if (verbose > 2) { |
316 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", | |
ecc81fce | 317 | safe_fname(fname), (double)st.st_size); |
6902ed17 | 318 | } |
e6e3f12f | 319 | |
927c8068 WD |
320 | write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type, |
321 | xname, xlen); | |
b9f592fb WD |
322 | write_sum_head(f_out, s); |
323 | ||
ecc81fce WD |
324 | if (verbose > 2) { |
325 | rprintf(FINFO, "calling match_sums %s\n", | |
326 | safe_fname(fname)); | |
11a5a3c7 | 327 | } |
83fff1aa | 328 | |
8a9cfb24 | 329 | if (log_before_transfer) |
b694f8a2 | 330 | log_item(file, &initial_stats, iflags, NULL); |
8a832465 | 331 | else if (!am_server && verbose && do_progress) |
ecc81fce WD |
332 | rprintf(FINFO, "%s\n", safe_fname(fname2)); |
333 | ||
83fff1aa | 334 | set_compression(fname); |
1b7c47cb | 335 | |
b9f592fb | 336 | match_sums(f_out, s, mbuf, st.st_size); |
0394e34a WD |
337 | if (do_progress) |
338 | end_progress(st.st_size); | |
339 | ||
8a9cfb24 | 340 | if (!log_before_transfer) |
b694f8a2 | 341 | log_item(file, &initial_stats, iflags, NULL); |
6902ed17 | 342 | |
b9f592fb WD |
343 | if (mbuf) { |
344 | j = unmap_file(mbuf); | |
345 | if (j) { | |
346 | io_error |= IOERR_GENERAL; | |
347 | rsyserr(FERROR, j, | |
348 | "read errors mapping %s", | |
349 | full_fname(fname)); | |
6a7cc46c | 350 | } |
6902ed17 | 351 | } |
b9f592fb | 352 | close(fd); |
e6e3f12f | 353 | |
2f03f956 | 354 | free_sums(s); |
e6e3f12f | 355 | |
ecc81fce WD |
356 | if (verbose > 2) { |
357 | rprintf(FINFO, "sender finished %s\n", | |
358 | safe_fname(fname)); | |
359 | } | |
95306d9d WD |
360 | |
361 | /* Flag that we actually sent this entry. */ | |
362 | file->flags |= FLAG_SENT; | |
2f03f956 | 363 | } |
8b115ac8 | 364 | make_backups = save_make_backups; |
2f03f956 AT |
365 | |
366 | if (verbose > 2) | |
e6e3f12f | 367 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
368 | |
369 | match_report(); | |
370 | ||
e6e3f12f | 371 | write_int(f_out, -1); |
2f03f956 | 372 | } |