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; | |
a0545709 | 23 | extern int do_xfers; |
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; |
6cc11982 | 30 | extern int append_mode; |
2f03f956 | 31 | extern int io_error; |
605fed4b | 32 | extern int allowed_lull; |
d6631cf3 | 33 | extern int protocol_version; |
95306d9d | 34 | extern int remove_sent_files; |
53f8519a | 35 | extern int updating_basis_file; |
8b115ac8 | 36 | extern int make_backups; |
8a9cfb24 | 37 | extern int do_progress; |
53f8519a | 38 | extern int inplace; |
a0545709 WD |
39 | extern int batch_fd; |
40 | extern int write_batch; | |
a3221d2a | 41 | extern struct stats stats; |
5f40615c | 42 | extern struct file_list *the_file_list; |
8715db2c | 43 | extern char *log_format; |
2f03f956 AT |
44 | |
45 | ||
0f9c48b1 MP |
46 | /** |
47 | * @file | |
48 | * | |
49 | * The sender gets checksums from the generator, calculates deltas, | |
50 | * and transmits them to the receiver. The sender process runs on the | |
51 | * machine holding the source files. | |
52 | **/ | |
fc0257c9 | 53 | |
ce8149b6 MP |
54 | /** |
55 | * Receive the checksums for a buffer | |
56 | **/ | |
2f03f956 AT |
57 | static struct sum_struct *receive_sums(int f) |
58 | { | |
59 | struct sum_struct *s; | |
a1cbe76e | 60 | int32 i; |
605fed4b | 61 | int lull_mod = allowed_lull * 5; |
2f03f956 AT |
62 | OFF_T offset = 0; |
63 | ||
a3221d2a WD |
64 | if (!(s = new(struct sum_struct))) |
65 | out_of_memory("receive_sums"); | |
2f03f956 | 66 | |
fc0257c9 S |
67 | read_sum_head(f, s); |
68 | ||
2f03f956 AT |
69 | s->sums = NULL; |
70 | ||
da9d12f5 | 71 | if (verbose > 3) { |
6c495e0d WD |
72 | rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n", |
73 | (double)s->count, (long)s->blength, (long)s->remainder); | |
da9d12f5 | 74 | } |
2f03f956 | 75 | |
6cc11982 WD |
76 | if (append_mode) { |
77 | s->flength = (OFF_T)s->count * s->blength; | |
78 | if (s->remainder) | |
79 | s->flength -= s->blength - s->remainder; | |
80 | return s; | |
81 | } | |
82 | ||
e6e3f12f | 83 | if (s->count == 0) |
2f03f956 AT |
84 | return(s); |
85 | ||
a3221d2a WD |
86 | if (!(s->sums = new_array(struct sum_buf, s->count))) |
87 | out_of_memory("receive_sums"); | |
2f03f956 | 88 | |
eed47b6b | 89 | for (i = 0; i < s->count; i++) { |
2f03f956 | 90 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 91 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
92 | |
93 | s->sums[i].offset = offset; | |
a3221d2a | 94 | s->sums[i].flags = 0; |
2f03f956 | 95 | |
eed47b6b | 96 | if (i == s->count-1 && s->remainder != 0) |
2f03f956 | 97 | s->sums[i].len = s->remainder; |
a3221d2a | 98 | else |
fc0257c9 | 99 | s->sums[i].len = s->blength; |
2f03f956 AT |
100 | offset += s->sums[i].len; |
101 | ||
605fed4b WD |
102 | if (allowed_lull && !(i % lull_mod)) |
103 | maybe_send_keepalive(); | |
104 | ||
a3221d2a WD |
105 | if (verbose > 3) { |
106 | rprintf(FINFO, | |
107 | "chunk[%d] len=%d offset=%.0f sum1=%08x\n", | |
108 | i, s->sums[i].len, (double)s->sums[i].offset, | |
109 | s->sums[i].sum1); | |
110 | } | |
2f03f956 AT |
111 | } |
112 | ||
113 | s->flength = offset; | |
114 | ||
115 | return s; | |
116 | } | |
117 | ||
5f40615c | 118 | void successful_send(int ndx) |
95306d9d WD |
119 | { |
120 | char fname[MAXPATHLEN]; | |
121 | struct file_struct *file; | |
122 | unsigned int offset; | |
123 | ||
5f40615c | 124 | if (ndx < 0 || ndx >= the_file_list->count) |
95306d9d WD |
125 | return; |
126 | ||
5f40615c | 127 | file = the_file_list->files[ndx]; |
95306d9d WD |
128 | /* The generator might tell us about symlinks we didn't send. */ |
129 | if (!(file->flags & FLAG_SENT) && !S_ISLNK(file->mode)) | |
130 | return; | |
131 | if (file->dir.root) { | |
132 | offset = stringjoin(fname, sizeof fname, | |
133 | file->dir.root, "/", NULL); | |
134 | } else | |
135 | offset = 0; | |
6cbde57d | 136 | f_name(file, fname + offset); |
45c49b52 WD |
137 | if (remove_sent_files && do_unlink(fname) == 0 && verbose > 1) |
138 | rprintf(FINFO, "sender removed %s\n", fname + offset); | |
95306d9d | 139 | } |
2f03f956 | 140 | |
927c8068 WD |
141 | static void write_ndx_and_attrs(int f_out, int ndx, int iflags, |
142 | uchar fnamecmp_type, char *buf, int len) | |
4d53c4dd WD |
143 | { |
144 | write_int(f_out, ndx); | |
145 | if (protocol_version < 29) | |
146 | return; | |
147 | write_shortint(f_out, iflags); | |
148 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) | |
149 | write_byte(f_out, fnamecmp_type); | |
927c8068 | 150 | if (iflags & ITEM_XNAME_FOLLOWS) |
4d53c4dd | 151 | write_vstring(f_out, buf, len); |
4d53c4dd WD |
152 | } |
153 | ||
165e6d44 | 154 | /* This is also used by receive.c with f_out = -1. */ |
6087ef2a WD |
155 | int read_item_attrs(int f_in, int f_out, int ndx, uchar *type_ptr, |
156 | char *buf, int *len_ptr) | |
165e6d44 | 157 | { |
fad3dc42 | 158 | int len; |
4d53c4dd | 159 | uchar fnamecmp_type = FNAMECMP_FNAME; |
165e6d44 | 160 | int iflags = protocol_version >= 29 ? read_shortint(f_in) |
fad3dc42 | 161 | : ITEM_TRANSFER | ITEM_MISSING_DATA; |
165e6d44 WD |
162 | |
163 | /* Handle the new keep-alive (no-op) packet. */ | |
164 | if (ndx == the_file_list->count && iflags == ITEM_IS_NEW) | |
165 | ; | |
166 | else if (ndx < 0 || ndx >= the_file_list->count) { | |
927c8068 | 167 | rprintf(FERROR, "Invalid file index: %d (count=%d) [%s]\n", |
165e6d44 WD |
168 | ndx, the_file_list->count, who_am_i()); |
169 | exit_cleanup(RERR_PROTOCOL); | |
170 | } else if (iflags == ITEM_IS_NEW) { | |
927c8068 WD |
171 | rprintf(FERROR, "Invalid itemized flag word: %x [%s]\n", |
172 | iflags, who_am_i()); | |
165e6d44 WD |
173 | exit_cleanup(RERR_PROTOCOL); |
174 | } | |
175 | ||
4d53c4dd WD |
176 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) |
177 | fnamecmp_type = read_byte(f_in); | |
178 | *type_ptr = fnamecmp_type; | |
179 | ||
180 | if (iflags & ITEM_XNAME_FOLLOWS) { | |
181 | if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0) | |
182 | exit_cleanup(RERR_PROTOCOL); | |
183 | } else { | |
fad3dc42 WD |
184 | *buf = '\0'; |
185 | len = -1; | |
186 | } | |
6087ef2a | 187 | *len_ptr = len; |
fad3dc42 | 188 | |
fad3dc42 WD |
189 | if (iflags & ITEM_TRANSFER) { |
190 | if (!S_ISREG(the_file_list->files[ndx]->mode)) { | |
191 | rprintf(FERROR, | |
927c8068 | 192 | "received request to transfer non-regular file: %d [%s]\n", |
fad3dc42 WD |
193 | ndx, who_am_i()); |
194 | exit_cleanup(RERR_PROTOCOL); | |
195 | } | |
196 | } else if (f_out >= 0) { | |
11290705 | 197 | write_ndx_and_attrs(f_out, ndx, iflags, |
927c8068 | 198 | fnamecmp_type, buf, len); |
165e6d44 WD |
199 | } |
200 | ||
201 | return iflags; | |
202 | } | |
203 | ||
e6e3f12f S |
204 | void send_files(struct file_list *flist, int f_out, int f_in) |
205 | { | |
c1659c79 | 206 | int fd = -1; |
2f03f956 | 207 | struct sum_struct *s; |
41cc97ae | 208 | struct map_struct *mbuf = NULL; |
2f03f956 | 209 | STRUCT_STAT st; |
ecc81fce | 210 | char *fname2, fname[MAXPATHLEN]; |
6087ef2a | 211 | char xname[MAXPATHLEN]; |
4d53c4dd | 212 | uchar fnamecmp_type; |
6087ef2a | 213 | int iflags, xlen; |
2f03f956 | 214 | struct file_struct *file; |
11290705 | 215 | int phase = 0, max_phase = protocol_version >= 29 ? 2 : 1; |
1b7c47cb | 216 | struct stats initial_stats; |
8b115ac8 | 217 | int save_make_backups = make_backups; |
7f37167d WD |
218 | int itemizing = am_daemon ? daemon_log_format_has_i |
219 | : !am_server && log_format_has_i; | |
a0545709 | 220 | int f_xfer = write_batch < 0 ? batch_fd : f_out; |
8a9cfb24 | 221 | int i, j; |
2f03f956 AT |
222 | |
223 | if (verbose > 2) | |
e6e3f12f | 224 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 225 | |
2f03f956 | 226 | while (1) { |
3fef5364 | 227 | unsigned int offset; |
2f03f956 AT |
228 | |
229 | i = read_int(f_in); | |
230 | if (i == -1) { | |
11290705 | 231 | if (++phase > max_phase) |
8b48bf11 | 232 | break; |
8b48bf11 WD |
233 | csum_length = SUM_LENGTH; |
234 | if (verbose > 2) | |
235 | rprintf(FINFO, "send_files phase=%d\n", phase); | |
236 | write_int(f_out, -1); | |
237 | /* For inplace: redo phase turns off the backup | |
238 | * flag so that we do a regular inplace send. */ | |
239 | make_backups = 0; | |
6cc11982 | 240 | append_mode = 0; |
8b48bf11 | 241 | continue; |
2f03f956 AT |
242 | } |
243 | ||
e732fb0c | 244 | iflags = read_item_attrs(f_in, f_out, i, &fnamecmp_type, |
6087ef2a | 245 | xname, &xlen); |
165e6d44 WD |
246 | if (iflags == ITEM_IS_NEW) /* no-op packet */ |
247 | continue; | |
2f03f956 | 248 | |
8a9cfb24 | 249 | file = flist->files[i]; |
7f37167d WD |
250 | if (file->dir.root) { |
251 | /* N.B. We're sure that this fits, so offset is OK. */ | |
252 | offset = strlcpy(fname, file->dir.root, sizeof fname); | |
253 | if (!offset || fname[offset-1] != '/') | |
254 | fname[offset++] = '/'; | |
255 | } else | |
256 | offset = 0; | |
6cbde57d | 257 | fname2 = f_name(file, fname + offset); |
7f37167d WD |
258 | |
259 | if (verbose > 2) | |
260 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
8a9cfb24 | 261 | |
fad3dc42 | 262 | if (!(iflags & ITEM_TRANSFER)) { |
6087ef2a | 263 | maybe_log_item(file, iflags, itemizing, xname); |
165e6d44 WD |
264 | continue; |
265 | } | |
11290705 WD |
266 | if (phase == 2) { |
267 | rprintf(FERROR, | |
268 | "got transfer request in phase 2 [%s]\n", | |
269 | who_am_i()); | |
270 | exit_cleanup(RERR_PROTOCOL); | |
271 | } | |
8a9cfb24 | 272 | |
6087ef2a WD |
273 | updating_basis_file = inplace && (protocol_version >= 29 |
274 | ? fnamecmp_type == FNAMECMP_FNAME : !make_backups); | |
b951e023 | 275 | |
97feb557 | 276 | stats.current_file_index = i; |
2f03f956 AT |
277 | stats.num_transferred_files++; |
278 | stats.total_transferred_size += file->length; | |
279 | ||
a0545709 | 280 | if (!do_xfers) { /* log the transfer */ |
8a832465 | 281 | if (!am_server && log_format) |
b694f8a2 | 282 | log_item(file, &stats, iflags, NULL); |
e732fb0c | 283 | write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type, |
927c8068 | 284 | xname, xlen); |
2f03f956 AT |
285 | continue; |
286 | } | |
287 | ||
1b7c47cb AT |
288 | initial_stats = stats; |
289 | ||
efa95a18 | 290 | if (!(s = receive_sums(f_in))) { |
06c28400 | 291 | io_error |= IOERR_GENERAL; |
e6e3f12f | 292 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
293 | return; |
294 | } | |
76f79ba7 | 295 | |
b9f592fb WD |
296 | fd = do_open(fname, O_RDONLY, 0); |
297 | if (fd == -1) { | |
298 | if (errno == ENOENT) { | |
299 | enum logcode c = am_daemon | |
300 | && protocol_version < 28 ? FERROR | |
301 | : FINFO; | |
302 | io_error |= IOERR_VANISHED; | |
303 | rprintf(c, "file has vanished: %s\n", | |
304 | full_fname(fname)); | |
305 | } else { | |
06c28400 | 306 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
307 | rsyserr(FERROR, errno, |
308 | "send_files failed to open %s", | |
309 | full_fname(fname)); | |
41cc97ae | 310 | } |
b9f592fb WD |
311 | free_sums(s); |
312 | continue; | |
313 | } | |
e6e3f12f | 314 | |
b9f592fb WD |
315 | /* map the local file */ |
316 | if (do_fstat(fd, &st) != 0) { | |
317 | io_error |= IOERR_GENERAL; | |
318 | rsyserr(FERROR, errno, "fstat failed"); | |
319 | free_sums(s); | |
320 | close(fd); | |
321 | return; | |
322 | } | |
11a5a3c7 | 323 | |
96d910c7 | 324 | if (st.st_size) { |
9b919d59 WD |
325 | int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE); |
326 | mbuf = map_file(fd, st.st_size, read_size, s->blength); | |
96d910c7 WD |
327 | } else |
328 | mbuf = NULL; | |
6902ed17 | 329 | |
b9f592fb WD |
330 | if (verbose > 2) { |
331 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", | |
45c49b52 | 332 | fname, (double)st.st_size); |
6902ed17 | 333 | } |
e6e3f12f | 334 | |
e732fb0c | 335 | write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type, |
927c8068 | 336 | xname, xlen); |
a0545709 | 337 | write_sum_head(f_xfer, s); |
b9f592fb | 338 | |
45c49b52 WD |
339 | if (verbose > 2) |
340 | rprintf(FINFO, "calling match_sums %s\n", fname); | |
83fff1aa | 341 | |
8a9cfb24 | 342 | if (log_before_transfer) |
b694f8a2 | 343 | log_item(file, &initial_stats, iflags, NULL); |
8a832465 | 344 | else if (!am_server && verbose && do_progress) |
45c49b52 | 345 | rprintf(FINFO, "%s\n", fname2); |
ecc81fce | 346 | |
83fff1aa | 347 | set_compression(fname); |
1b7c47cb | 348 | |
a0545709 | 349 | match_sums(f_xfer, s, mbuf, st.st_size); |
0394e34a WD |
350 | if (do_progress) |
351 | end_progress(st.st_size); | |
352 | ||
8a9cfb24 | 353 | if (!log_before_transfer) |
b694f8a2 | 354 | log_item(file, &initial_stats, iflags, NULL); |
6902ed17 | 355 | |
b9f592fb WD |
356 | if (mbuf) { |
357 | j = unmap_file(mbuf); | |
358 | if (j) { | |
359 | io_error |= IOERR_GENERAL; | |
360 | rsyserr(FERROR, j, | |
361 | "read errors mapping %s", | |
362 | full_fname(fname)); | |
6a7cc46c | 363 | } |
6902ed17 | 364 | } |
b9f592fb | 365 | close(fd); |
e6e3f12f | 366 | |
2f03f956 | 367 | free_sums(s); |
e6e3f12f | 368 | |
45c49b52 WD |
369 | if (verbose > 2) |
370 | rprintf(FINFO, "sender finished %s\n", fname); | |
95306d9d WD |
371 | |
372 | /* Flag that we actually sent this entry. */ | |
373 | file->flags |= FLAG_SENT; | |
2f03f956 | 374 | } |
8b115ac8 | 375 | make_backups = save_make_backups; |
2f03f956 AT |
376 | |
377 | if (verbose > 2) | |
e6e3f12f | 378 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
379 | |
380 | match_report(); | |
381 | ||
e6e3f12f | 382 | write_int(f_out, -1); |
2f03f956 | 383 | } |