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; | |
136 | f_name_to(file, fname + offset); | |
137 | if (remove_sent_files && do_unlink(fname) == 0 && verbose > 1) { | |
138 | rprintf(FINFO, "sender removed %s\n", | |
139 | safe_fname(fname + offset)); | |
140 | } | |
141 | } | |
2f03f956 | 142 | |
927c8068 WD |
143 | static void write_ndx_and_attrs(int f_out, int ndx, int iflags, |
144 | uchar fnamecmp_type, char *buf, int len) | |
4d53c4dd WD |
145 | { |
146 | write_int(f_out, ndx); | |
147 | if (protocol_version < 29) | |
148 | return; | |
149 | write_shortint(f_out, iflags); | |
150 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) | |
151 | write_byte(f_out, fnamecmp_type); | |
927c8068 | 152 | if (iflags & ITEM_XNAME_FOLLOWS) |
4d53c4dd | 153 | write_vstring(f_out, buf, len); |
4d53c4dd WD |
154 | } |
155 | ||
165e6d44 | 156 | /* This is also used by receive.c with f_out = -1. */ |
6087ef2a WD |
157 | int read_item_attrs(int f_in, int f_out, int ndx, uchar *type_ptr, |
158 | char *buf, int *len_ptr) | |
165e6d44 | 159 | { |
fad3dc42 | 160 | int len; |
4d53c4dd | 161 | uchar fnamecmp_type = FNAMECMP_FNAME; |
165e6d44 | 162 | int iflags = protocol_version >= 29 ? read_shortint(f_in) |
fad3dc42 | 163 | : ITEM_TRANSFER | ITEM_MISSING_DATA; |
165e6d44 WD |
164 | |
165 | /* Handle the new keep-alive (no-op) packet. */ | |
166 | if (ndx == the_file_list->count && iflags == ITEM_IS_NEW) | |
167 | ; | |
168 | else if (ndx < 0 || ndx >= the_file_list->count) { | |
927c8068 | 169 | rprintf(FERROR, "Invalid file index: %d (count=%d) [%s]\n", |
165e6d44 WD |
170 | ndx, the_file_list->count, who_am_i()); |
171 | exit_cleanup(RERR_PROTOCOL); | |
172 | } else if (iflags == ITEM_IS_NEW) { | |
927c8068 WD |
173 | rprintf(FERROR, "Invalid itemized flag word: %x [%s]\n", |
174 | iflags, who_am_i()); | |
165e6d44 WD |
175 | exit_cleanup(RERR_PROTOCOL); |
176 | } | |
177 | ||
4d53c4dd WD |
178 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) |
179 | fnamecmp_type = read_byte(f_in); | |
180 | *type_ptr = fnamecmp_type; | |
181 | ||
182 | if (iflags & ITEM_XNAME_FOLLOWS) { | |
183 | if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0) | |
184 | exit_cleanup(RERR_PROTOCOL); | |
185 | } else { | |
fad3dc42 WD |
186 | *buf = '\0'; |
187 | len = -1; | |
188 | } | |
6087ef2a | 189 | *len_ptr = len; |
fad3dc42 | 190 | |
fad3dc42 WD |
191 | if (iflags & ITEM_TRANSFER) { |
192 | if (!S_ISREG(the_file_list->files[ndx]->mode)) { | |
193 | rprintf(FERROR, | |
927c8068 | 194 | "received request to transfer non-regular file: %d [%s]\n", |
fad3dc42 WD |
195 | ndx, who_am_i()); |
196 | exit_cleanup(RERR_PROTOCOL); | |
197 | } | |
198 | } else if (f_out >= 0) { | |
11290705 | 199 | write_ndx_and_attrs(f_out, ndx, iflags, |
927c8068 | 200 | fnamecmp_type, buf, len); |
165e6d44 WD |
201 | } |
202 | ||
203 | return iflags; | |
204 | } | |
205 | ||
e6e3f12f S |
206 | void send_files(struct file_list *flist, int f_out, int f_in) |
207 | { | |
c1659c79 | 208 | int fd = -1; |
2f03f956 | 209 | struct sum_struct *s; |
41cc97ae | 210 | struct map_struct *mbuf = NULL; |
2f03f956 | 211 | STRUCT_STAT st; |
ecc81fce | 212 | char *fname2, fname[MAXPATHLEN]; |
6087ef2a | 213 | char xname[MAXPATHLEN]; |
4d53c4dd | 214 | uchar fnamecmp_type; |
6087ef2a | 215 | int iflags, xlen; |
2f03f956 | 216 | struct file_struct *file; |
11290705 | 217 | int phase = 0, max_phase = protocol_version >= 29 ? 2 : 1; |
1b7c47cb | 218 | struct stats initial_stats; |
8b115ac8 | 219 | int save_make_backups = make_backups; |
7f37167d WD |
220 | int itemizing = am_daemon ? daemon_log_format_has_i |
221 | : !am_server && log_format_has_i; | |
a0545709 | 222 | int f_xfer = write_batch < 0 ? batch_fd : f_out; |
8a9cfb24 | 223 | int i, j; |
2f03f956 AT |
224 | |
225 | if (verbose > 2) | |
e6e3f12f | 226 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 227 | |
2f03f956 | 228 | while (1) { |
3fef5364 | 229 | unsigned int offset; |
2f03f956 AT |
230 | |
231 | i = read_int(f_in); | |
232 | if (i == -1) { | |
11290705 | 233 | if (++phase > max_phase) |
8b48bf11 | 234 | break; |
8b48bf11 WD |
235 | csum_length = SUM_LENGTH; |
236 | if (verbose > 2) | |
237 | rprintf(FINFO, "send_files phase=%d\n", phase); | |
238 | write_int(f_out, -1); | |
239 | /* For inplace: redo phase turns off the backup | |
240 | * flag so that we do a regular inplace send. */ | |
241 | make_backups = 0; | |
6cc11982 | 242 | append_mode = 0; |
8b48bf11 | 243 | continue; |
2f03f956 AT |
244 | } |
245 | ||
e732fb0c | 246 | iflags = read_item_attrs(f_in, f_out, i, &fnamecmp_type, |
6087ef2a | 247 | xname, &xlen); |
165e6d44 WD |
248 | if (iflags == ITEM_IS_NEW) /* no-op packet */ |
249 | continue; | |
2f03f956 | 250 | |
8a9cfb24 | 251 | file = flist->files[i]; |
7f37167d WD |
252 | if (file->dir.root) { |
253 | /* N.B. We're sure that this fits, so offset is OK. */ | |
254 | offset = strlcpy(fname, file->dir.root, sizeof fname); | |
255 | if (!offset || fname[offset-1] != '/') | |
256 | fname[offset++] = '/'; | |
257 | } else | |
258 | offset = 0; | |
259 | fname2 = f_name_to(file, fname + offset); | |
260 | ||
261 | if (verbose > 2) | |
262 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
8a9cfb24 | 263 | |
fad3dc42 | 264 | if (!(iflags & ITEM_TRANSFER)) { |
6087ef2a | 265 | maybe_log_item(file, iflags, itemizing, xname); |
165e6d44 WD |
266 | continue; |
267 | } | |
11290705 WD |
268 | if (phase == 2) { |
269 | rprintf(FERROR, | |
270 | "got transfer request in phase 2 [%s]\n", | |
271 | who_am_i()); | |
272 | exit_cleanup(RERR_PROTOCOL); | |
273 | } | |
8a9cfb24 | 274 | |
6087ef2a WD |
275 | updating_basis_file = inplace && (protocol_version >= 29 |
276 | ? fnamecmp_type == FNAMECMP_FNAME : !make_backups); | |
b951e023 | 277 | |
97feb557 | 278 | stats.current_file_index = i; |
2f03f956 AT |
279 | stats.num_transferred_files++; |
280 | stats.total_transferred_size += file->length; | |
281 | ||
a0545709 | 282 | if (!do_xfers) { /* log the transfer */ |
8a832465 | 283 | if (!am_server && log_format) |
b694f8a2 | 284 | log_item(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", | |
ecc81fce | 334 | safe_fname(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 | |
ecc81fce WD |
341 | if (verbose > 2) { |
342 | rprintf(FINFO, "calling match_sums %s\n", | |
343 | safe_fname(fname)); | |
11a5a3c7 | 344 | } |
83fff1aa | 345 | |
8a9cfb24 | 346 | if (log_before_transfer) |
b694f8a2 | 347 | log_item(file, &initial_stats, iflags, NULL); |
8a832465 | 348 | else if (!am_server && verbose && do_progress) |
ecc81fce WD |
349 | rprintf(FINFO, "%s\n", safe_fname(fname2)); |
350 | ||
83fff1aa | 351 | set_compression(fname); |
1b7c47cb | 352 | |
a0545709 | 353 | match_sums(f_xfer, s, mbuf, st.st_size); |
0394e34a WD |
354 | if (do_progress) |
355 | end_progress(st.st_size); | |
356 | ||
8a9cfb24 | 357 | if (!log_before_transfer) |
b694f8a2 | 358 | log_item(file, &initial_stats, iflags, NULL); |
6902ed17 | 359 | |
b9f592fb WD |
360 | if (mbuf) { |
361 | j = unmap_file(mbuf); | |
362 | if (j) { | |
363 | io_error |= IOERR_GENERAL; | |
364 | rsyserr(FERROR, j, | |
365 | "read errors mapping %s", | |
366 | full_fname(fname)); | |
6a7cc46c | 367 | } |
6902ed17 | 368 | } |
b9f592fb | 369 | close(fd); |
e6e3f12f | 370 | |
2f03f956 | 371 | free_sums(s); |
e6e3f12f | 372 | |
ecc81fce WD |
373 | if (verbose > 2) { |
374 | rprintf(FINFO, "sender finished %s\n", | |
375 | safe_fname(fname)); | |
376 | } | |
95306d9d WD |
377 | |
378 | /* Flag that we actually sent this entry. */ | |
379 | file->flags |= FLAG_SENT; | |
2f03f956 | 380 | } |
8b115ac8 | 381 | make_backups = save_make_backups; |
2f03f956 AT |
382 | |
383 | if (verbose > 2) | |
e6e3f12f | 384 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
385 | |
386 | match_report(); | |
387 | ||
e6e3f12f | 388 | write_int(f_out, -1); |
2f03f956 | 389 | } |