Commit | Line | Data |
---|---|---|
e6e3f12f | 1 | /* |
0f78b815 WD |
2 | * Routines only used by the sending process. |
3 | * | |
4 | * Copyright (C) 1996 Andrew Tridgell | |
5 | * Copyright (C) 1996 Paul Mackerras | |
6 | * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
e7c67065 WD |
18 | * You should have received a copy of the GNU General Public License along |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
0f78b815 | 21 | */ |
2f03f956 AT |
22 | |
23 | #include "rsync.h" | |
24 | ||
25 | extern int verbose; | |
a0545709 | 26 | extern int do_xfers; |
8715db2c WD |
27 | extern int am_server; |
28 | extern int am_daemon; | |
8a9cfb24 | 29 | extern int log_before_transfer; |
2fedf3d5 | 30 | extern int stdout_format_has_i; |
ecc7623e | 31 | extern int logfile_format_has_i; |
2f03f956 | 32 | extern int csum_length; |
6cc11982 | 33 | extern int append_mode; |
2f03f956 | 34 | extern int io_error; |
605fed4b | 35 | extern int allowed_lull; |
d6631cf3 | 36 | extern int protocol_version; |
95306d9d | 37 | extern int remove_sent_files; |
53f8519a | 38 | extern int updating_basis_file; |
8b115ac8 | 39 | extern int make_backups; |
8a9cfb24 | 40 | extern int do_progress; |
53f8519a | 41 | extern int inplace; |
a0545709 WD |
42 | extern int batch_fd; |
43 | extern int write_batch; | |
a3221d2a | 44 | extern struct stats stats; |
5f40615c | 45 | extern struct file_list *the_file_list; |
2fedf3d5 | 46 | extern char *stdout_format; |
2f03f956 AT |
47 | |
48 | ||
0f9c48b1 MP |
49 | /** |
50 | * @file | |
51 | * | |
52 | * The sender gets checksums from the generator, calculates deltas, | |
53 | * and transmits them to the receiver. The sender process runs on the | |
54 | * machine holding the source files. | |
55 | **/ | |
fc0257c9 | 56 | |
ce8149b6 MP |
57 | /** |
58 | * Receive the checksums for a buffer | |
59 | **/ | |
2f03f956 AT |
60 | static struct sum_struct *receive_sums(int f) |
61 | { | |
62 | struct sum_struct *s; | |
a1cbe76e | 63 | int32 i; |
605fed4b | 64 | int lull_mod = allowed_lull * 5; |
2f03f956 AT |
65 | OFF_T offset = 0; |
66 | ||
a3221d2a WD |
67 | if (!(s = new(struct sum_struct))) |
68 | out_of_memory("receive_sums"); | |
2f03f956 | 69 | |
fc0257c9 S |
70 | read_sum_head(f, s); |
71 | ||
2f03f956 AT |
72 | s->sums = NULL; |
73 | ||
da9d12f5 | 74 | if (verbose > 3) { |
6c495e0d WD |
75 | rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n", |
76 | (double)s->count, (long)s->blength, (long)s->remainder); | |
da9d12f5 | 77 | } |
2f03f956 | 78 | |
6cc11982 WD |
79 | if (append_mode) { |
80 | s->flength = (OFF_T)s->count * s->blength; | |
81 | if (s->remainder) | |
82 | s->flength -= s->blength - s->remainder; | |
83 | return s; | |
84 | } | |
85 | ||
e6e3f12f | 86 | if (s->count == 0) |
2f03f956 AT |
87 | return(s); |
88 | ||
a3221d2a WD |
89 | if (!(s->sums = new_array(struct sum_buf, s->count))) |
90 | out_of_memory("receive_sums"); | |
2f03f956 | 91 | |
eed47b6b | 92 | for (i = 0; i < s->count; i++) { |
2f03f956 | 93 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 94 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
95 | |
96 | s->sums[i].offset = offset; | |
a3221d2a | 97 | s->sums[i].flags = 0; |
2f03f956 | 98 | |
eed47b6b | 99 | if (i == s->count-1 && s->remainder != 0) |
2f03f956 | 100 | s->sums[i].len = s->remainder; |
a3221d2a | 101 | else |
fc0257c9 | 102 | s->sums[i].len = s->blength; |
2f03f956 AT |
103 | offset += s->sums[i].len; |
104 | ||
605fed4b WD |
105 | if (allowed_lull && !(i % lull_mod)) |
106 | maybe_send_keepalive(); | |
107 | ||
a3221d2a WD |
108 | if (verbose > 3) { |
109 | rprintf(FINFO, | |
110 | "chunk[%d] len=%d offset=%.0f sum1=%08x\n", | |
111 | i, s->sums[i].len, (double)s->sums[i].offset, | |
112 | s->sums[i].sum1); | |
113 | } | |
2f03f956 AT |
114 | } |
115 | ||
116 | s->flength = offset; | |
117 | ||
118 | return s; | |
119 | } | |
120 | ||
5f40615c | 121 | void successful_send(int ndx) |
95306d9d WD |
122 | { |
123 | char fname[MAXPATHLEN]; | |
124 | struct file_struct *file; | |
125 | unsigned int offset; | |
126 | ||
5f40615c | 127 | if (ndx < 0 || ndx >= the_file_list->count) |
95306d9d WD |
128 | return; |
129 | ||
5f40615c | 130 | file = the_file_list->files[ndx]; |
95306d9d WD |
131 | /* The generator might tell us about symlinks we didn't send. */ |
132 | if (!(file->flags & FLAG_SENT) && !S_ISLNK(file->mode)) | |
133 | return; | |
134 | if (file->dir.root) { | |
135 | offset = stringjoin(fname, sizeof fname, | |
136 | file->dir.root, "/", NULL); | |
137 | } else | |
138 | offset = 0; | |
6cbde57d | 139 | f_name(file, fname + offset); |
45c49b52 WD |
140 | if (remove_sent_files && do_unlink(fname) == 0 && verbose > 1) |
141 | rprintf(FINFO, "sender removed %s\n", fname + offset); | |
95306d9d | 142 | } |
2f03f956 | 143 | |
927c8068 WD |
144 | static void write_ndx_and_attrs(int f_out, int ndx, int iflags, |
145 | uchar fnamecmp_type, char *buf, int len) | |
4d53c4dd WD |
146 | { |
147 | write_int(f_out, ndx); | |
148 | if (protocol_version < 29) | |
149 | return; | |
150 | write_shortint(f_out, iflags); | |
151 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) | |
152 | write_byte(f_out, fnamecmp_type); | |
927c8068 | 153 | if (iflags & ITEM_XNAME_FOLLOWS) |
4d53c4dd | 154 | write_vstring(f_out, buf, len); |
4d53c4dd WD |
155 | } |
156 | ||
165e6d44 | 157 | /* This is also used by receive.c with f_out = -1. */ |
6087ef2a WD |
158 | int read_item_attrs(int f_in, int f_out, int ndx, uchar *type_ptr, |
159 | char *buf, int *len_ptr) | |
165e6d44 | 160 | { |
fad3dc42 | 161 | int len; |
4d53c4dd | 162 | uchar fnamecmp_type = FNAMECMP_FNAME; |
165e6d44 | 163 | int iflags = protocol_version >= 29 ? read_shortint(f_in) |
fad3dc42 | 164 | : ITEM_TRANSFER | ITEM_MISSING_DATA; |
165e6d44 WD |
165 | |
166 | /* Handle the new keep-alive (no-op) packet. */ | |
167 | if (ndx == the_file_list->count && iflags == ITEM_IS_NEW) | |
168 | ; | |
169 | else if (ndx < 0 || ndx >= the_file_list->count) { | |
927c8068 | 170 | rprintf(FERROR, "Invalid file index: %d (count=%d) [%s]\n", |
165e6d44 WD |
171 | ndx, the_file_list->count, who_am_i()); |
172 | exit_cleanup(RERR_PROTOCOL); | |
173 | } else if (iflags == ITEM_IS_NEW) { | |
927c8068 WD |
174 | rprintf(FERROR, "Invalid itemized flag word: %x [%s]\n", |
175 | iflags, who_am_i()); | |
165e6d44 WD |
176 | exit_cleanup(RERR_PROTOCOL); |
177 | } | |
178 | ||
4d53c4dd WD |
179 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) |
180 | fnamecmp_type = read_byte(f_in); | |
181 | *type_ptr = fnamecmp_type; | |
182 | ||
183 | if (iflags & ITEM_XNAME_FOLLOWS) { | |
184 | if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0) | |
185 | exit_cleanup(RERR_PROTOCOL); | |
186 | } else { | |
fad3dc42 WD |
187 | *buf = '\0'; |
188 | len = -1; | |
189 | } | |
6087ef2a | 190 | *len_ptr = len; |
fad3dc42 | 191 | |
fad3dc42 WD |
192 | if (iflags & ITEM_TRANSFER) { |
193 | if (!S_ISREG(the_file_list->files[ndx]->mode)) { | |
194 | rprintf(FERROR, | |
927c8068 | 195 | "received request to transfer non-regular file: %d [%s]\n", |
fad3dc42 WD |
196 | ndx, who_am_i()); |
197 | exit_cleanup(RERR_PROTOCOL); | |
198 | } | |
199 | } else if (f_out >= 0) { | |
11290705 | 200 | write_ndx_and_attrs(f_out, ndx, iflags, |
927c8068 | 201 | fnamecmp_type, buf, len); |
165e6d44 WD |
202 | } |
203 | ||
204 | return iflags; | |
205 | } | |
206 | ||
e6e3f12f S |
207 | void send_files(struct file_list *flist, int f_out, int f_in) |
208 | { | |
c1659c79 | 209 | int fd = -1; |
2f03f956 | 210 | struct sum_struct *s; |
41cc97ae | 211 | struct map_struct *mbuf = NULL; |
2f03f956 | 212 | STRUCT_STAT st; |
ecc81fce | 213 | char *fname2, fname[MAXPATHLEN]; |
6087ef2a | 214 | char xname[MAXPATHLEN]; |
4d53c4dd | 215 | uchar fnamecmp_type; |
6087ef2a | 216 | int iflags, xlen; |
2f03f956 | 217 | struct file_struct *file; |
11290705 | 218 | int phase = 0, max_phase = protocol_version >= 29 ? 2 : 1; |
1b7c47cb | 219 | struct stats initial_stats; |
8b115ac8 | 220 | int save_make_backups = make_backups; |
2fedf3d5 WD |
221 | int itemizing = am_server ? logfile_format_has_i : stdout_format_has_i; |
222 | enum logcode log_code = log_before_transfer ? FLOG : FINFO; | |
a0545709 | 223 | int f_xfer = write_batch < 0 ? batch_fd : f_out; |
8a9cfb24 | 224 | int i, j; |
2f03f956 AT |
225 | |
226 | if (verbose > 2) | |
e6e3f12f | 227 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 228 | |
2f03f956 | 229 | while (1) { |
3fef5364 | 230 | unsigned int offset; |
2f03f956 AT |
231 | |
232 | i = read_int(f_in); | |
233 | if (i == -1) { | |
11290705 | 234 | if (++phase > max_phase) |
8b48bf11 | 235 | break; |
8b48bf11 WD |
236 | csum_length = SUM_LENGTH; |
237 | if (verbose > 2) | |
238 | rprintf(FINFO, "send_files phase=%d\n", phase); | |
239 | write_int(f_out, -1); | |
240 | /* For inplace: redo phase turns off the backup | |
241 | * flag so that we do a regular inplace send. */ | |
242 | make_backups = 0; | |
6cc11982 | 243 | append_mode = 0; |
8b48bf11 | 244 | continue; |
2f03f956 AT |
245 | } |
246 | ||
e732fb0c | 247 | iflags = read_item_attrs(f_in, f_out, i, &fnamecmp_type, |
6087ef2a | 248 | xname, &xlen); |
165e6d44 WD |
249 | if (iflags == ITEM_IS_NEW) /* no-op packet */ |
250 | continue; | |
2f03f956 | 251 | |
8a9cfb24 | 252 | file = flist->files[i]; |
7f37167d WD |
253 | if (file->dir.root) { |
254 | /* N.B. We're sure that this fits, so offset is OK. */ | |
255 | offset = strlcpy(fname, file->dir.root, sizeof fname); | |
256 | if (!offset || fname[offset-1] != '/') | |
257 | fname[offset++] = '/'; | |
258 | } else | |
259 | offset = 0; | |
6cbde57d | 260 | fname2 = f_name(file, fname + offset); |
7f37167d WD |
261 | |
262 | if (verbose > 2) | |
263 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
8a9cfb24 | 264 | |
fad3dc42 | 265 | if (!(iflags & ITEM_TRANSFER)) { |
6087ef2a | 266 | maybe_log_item(file, iflags, itemizing, xname); |
165e6d44 WD |
267 | continue; |
268 | } | |
11290705 WD |
269 | if (phase == 2) { |
270 | rprintf(FERROR, | |
271 | "got transfer request in phase 2 [%s]\n", | |
272 | who_am_i()); | |
273 | exit_cleanup(RERR_PROTOCOL); | |
274 | } | |
8a9cfb24 | 275 | |
6087ef2a WD |
276 | updating_basis_file = inplace && (protocol_version >= 29 |
277 | ? fnamecmp_type == FNAMECMP_FNAME : !make_backups); | |
b951e023 | 278 | |
97feb557 | 279 | stats.current_file_index = i; |
2f03f956 AT |
280 | stats.num_transferred_files++; |
281 | stats.total_transferred_size += file->length; | |
282 | ||
a0545709 | 283 | if (!do_xfers) { /* log the transfer */ |
85909931 | 284 | log_item(FCLIENT, file, &stats, iflags, NULL); |
e732fb0c | 285 | write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type, |
927c8068 | 286 | xname, xlen); |
2f03f956 AT |
287 | continue; |
288 | } | |
289 | ||
1b7c47cb AT |
290 | initial_stats = stats; |
291 | ||
efa95a18 | 292 | if (!(s = receive_sums(f_in))) { |
06c28400 | 293 | io_error |= IOERR_GENERAL; |
e6e3f12f | 294 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
295 | return; |
296 | } | |
76f79ba7 | 297 | |
b9f592fb WD |
298 | fd = do_open(fname, O_RDONLY, 0); |
299 | if (fd == -1) { | |
300 | if (errno == ENOENT) { | |
301 | enum logcode c = am_daemon | |
302 | && protocol_version < 28 ? FERROR | |
303 | : FINFO; | |
304 | io_error |= IOERR_VANISHED; | |
305 | rprintf(c, "file has vanished: %s\n", | |
306 | full_fname(fname)); | |
307 | } else { | |
06c28400 | 308 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
309 | rsyserr(FERROR, errno, |
310 | "send_files failed to open %s", | |
311 | full_fname(fname)); | |
41cc97ae | 312 | } |
b9f592fb WD |
313 | free_sums(s); |
314 | continue; | |
315 | } | |
e6e3f12f | 316 | |
b9f592fb WD |
317 | /* map the local file */ |
318 | if (do_fstat(fd, &st) != 0) { | |
319 | io_error |= IOERR_GENERAL; | |
320 | rsyserr(FERROR, errno, "fstat failed"); | |
321 | free_sums(s); | |
322 | close(fd); | |
323 | return; | |
324 | } | |
11a5a3c7 | 325 | |
96d910c7 | 326 | if (st.st_size) { |
9b919d59 WD |
327 | int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE); |
328 | mbuf = map_file(fd, st.st_size, read_size, s->blength); | |
96d910c7 WD |
329 | } else |
330 | mbuf = NULL; | |
6902ed17 | 331 | |
b9f592fb WD |
332 | if (verbose > 2) { |
333 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", | |
45c49b52 | 334 | fname, (double)st.st_size); |
6902ed17 | 335 | } |
e6e3f12f | 336 | |
e732fb0c | 337 | write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type, |
927c8068 | 338 | xname, xlen); |
a0545709 | 339 | write_sum_head(f_xfer, s); |
b9f592fb | 340 | |
45c49b52 WD |
341 | if (verbose > 2) |
342 | rprintf(FINFO, "calling match_sums %s\n", fname); | |
83fff1aa | 343 | |
8a9cfb24 | 344 | if (log_before_transfer) |
85909931 | 345 | log_item(FCLIENT, file, &initial_stats, iflags, NULL); |
8a832465 | 346 | else if (!am_server && verbose && do_progress) |
85909931 | 347 | rprintf(FCLIENT, "%s\n", fname2); |
ecc81fce | 348 | |
83fff1aa | 349 | set_compression(fname); |
1b7c47cb | 350 | |
a0545709 | 351 | match_sums(f_xfer, s, mbuf, st.st_size); |
0394e34a WD |
352 | if (do_progress) |
353 | end_progress(st.st_size); | |
354 | ||
2fedf3d5 | 355 | log_item(log_code, file, &initial_stats, iflags, NULL); |
6902ed17 | 356 | |
b9f592fb WD |
357 | if (mbuf) { |
358 | j = unmap_file(mbuf); | |
359 | if (j) { | |
360 | io_error |= IOERR_GENERAL; | |
361 | rsyserr(FERROR, j, | |
362 | "read errors mapping %s", | |
363 | full_fname(fname)); | |
6a7cc46c | 364 | } |
6902ed17 | 365 | } |
b9f592fb | 366 | close(fd); |
e6e3f12f | 367 | |
2f03f956 | 368 | free_sums(s); |
e6e3f12f | 369 | |
45c49b52 WD |
370 | if (verbose > 2) |
371 | rprintf(FINFO, "sender finished %s\n", fname); | |
95306d9d WD |
372 | |
373 | /* Flag that we actually sent this entry. */ | |
374 | file->flags |= FLAG_SENT; | |
2f03f956 | 375 | } |
8b115ac8 | 376 | make_backups = save_make_backups; |
2f03f956 AT |
377 | |
378 | if (verbose > 2) | |
e6e3f12f | 379 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
380 | |
381 | match_report(); | |
382 | ||
e6e3f12f | 383 | write_int(f_out, -1); |
2f03f956 | 384 | } |