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; | |
f3d6d480 | 29 | extern int incremental; |
8a9cfb24 | 30 | extern int log_before_transfer; |
2fedf3d5 | 31 | extern int stdout_format_has_i; |
ecc7623e | 32 | extern int logfile_format_has_i; |
2f03f956 | 33 | extern int csum_length; |
6cc11982 | 34 | extern int append_mode; |
2f03f956 | 35 | extern int io_error; |
605fed4b | 36 | extern int allowed_lull; |
d6631cf3 | 37 | extern int protocol_version; |
47c11975 | 38 | extern int remove_source_files; |
53f8519a | 39 | extern int updating_basis_file; |
8b115ac8 | 40 | extern int make_backups; |
8a9cfb24 | 41 | extern int do_progress; |
53f8519a | 42 | extern int inplace; |
a0545709 WD |
43 | extern int batch_fd; |
44 | extern int write_batch; | |
a3221d2a | 45 | extern struct stats stats; |
f3d6d480 | 46 | extern struct file_list *cur_flist, *first_flist; |
2fedf3d5 | 47 | extern char *stdout_format; |
2f03f956 | 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 | |
f3d6d480 | 79 | if (append_mode > 0) { |
6cc11982 WD |
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; | |
f3d6d480 | 125 | struct file_list *flist; |
95306d9d | 126 | |
f3d6d480 | 127 | if (!remove_source_files) |
95306d9d WD |
128 | return; |
129 | ||
f3d6d480 WD |
130 | if (!(flist = flist_for_ndx(ndx))) { |
131 | rprintf(FERROR, | |
132 | "INTERNAL ERROR: unable to find flist for item %d\n", | |
133 | ndx); | |
134 | return; | |
acee1ad8 | 135 | } |
f3d6d480 WD |
136 | |
137 | file = flist->files[ndx - flist->ndx_start]; | |
138 | if (!push_flist_dir(F_ROOTDIR(file), -1)) | |
139 | return; | |
140 | f_name(file, fname); | |
141 | ||
142 | if (do_unlink(fname) == 0) { | |
143 | if (verbose > 1) | |
144 | rprintf(FINFO, "sender removed %s\n", fname); | |
145 | } else | |
146 | rsyserr(FERROR, errno, "sender failed to remove %s", fname); | |
95306d9d | 147 | } |
2f03f956 | 148 | |
d144e43b WD |
149 | void write_ndx_and_attrs(int f_out, int ndx, int iflags, |
150 | uchar fnamecmp_type, char *buf, int len) | |
151 | { | |
9ae7a2cd | 152 | write_ndx(f_out, ndx); |
d144e43b WD |
153 | if (protocol_version < 29) |
154 | return; | |
155 | write_shortint(f_out, iflags); | |
156 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) | |
157 | write_byte(f_out, fnamecmp_type); | |
158 | if (iflags & ITEM_XNAME_FOLLOWS) | |
159 | write_vstring(f_out, buf, len); | |
160 | } | |
161 | ||
f3d6d480 | 162 | void send_files(int f_in, int f_out) |
e6e3f12f | 163 | { |
c1659c79 | 164 | int fd = -1; |
2f03f956 | 165 | struct sum_struct *s; |
41cc97ae | 166 | struct map_struct *mbuf = NULL; |
2f03f956 | 167 | STRUCT_STAT st; |
f3d6d480 WD |
168 | char fname[MAXPATHLEN], xname[MAXPATHLEN]; |
169 | const char *path, *slash; | |
4d53c4dd | 170 | uchar fnamecmp_type; |
6087ef2a | 171 | int iflags, xlen; |
2f03f956 | 172 | struct file_struct *file; |
11290705 | 173 | int phase = 0, max_phase = protocol_version >= 29 ? 2 : 1; |
1b7c47cb | 174 | struct stats initial_stats; |
2fedf3d5 WD |
175 | int itemizing = am_server ? logfile_format_has_i : stdout_format_has_i; |
176 | enum logcode log_code = log_before_transfer ? FLOG : FINFO; | |
a0545709 | 177 | int f_xfer = write_batch < 0 ? batch_fd : f_out; |
f3d6d480 | 178 | int ndx, j; |
2f03f956 AT |
179 | |
180 | if (verbose > 2) | |
e6e3f12f | 181 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 182 | |
2f03f956 | 183 | while (1) { |
f3d6d480 WD |
184 | if (incremental) |
185 | send_extra_file_list(f_out, 1000); | |
186 | ||
187 | /* This call also sets cur_flist. */ | |
188 | ndx = read_ndx_and_attrs(f_in, f_out, &iflags, | |
189 | &fnamecmp_type, xname, &xlen); | |
190 | if (ndx == NDX_DONE) { | |
191 | if (incremental && first_flist) { | |
192 | flist_free(first_flist); | |
193 | if (first_flist) { | |
9ae7a2cd | 194 | write_ndx(f_out, NDX_DONE); |
f3d6d480 WD |
195 | continue; |
196 | } | |
197 | } | |
11290705 | 198 | if (++phase > max_phase) |
8b48bf11 | 199 | break; |
8b48bf11 WD |
200 | if (verbose > 2) |
201 | rprintf(FINFO, "send_files phase=%d\n", phase); | |
9ae7a2cd | 202 | write_ndx(f_out, NDX_DONE); |
8b48bf11 | 203 | continue; |
2f03f956 AT |
204 | } |
205 | ||
f3d6d480 | 206 | file = cur_flist->files[ndx - cur_flist->ndx_start]; |
dbd9ea3e | 207 | if (F_ROOTDIR(file)) { |
f3d6d480 WD |
208 | path = F_ROOTDIR(file); |
209 | slash = "/"; | |
210 | } else { | |
211 | path = slash = ""; | |
212 | } | |
213 | if (!push_flist_dir(F_ROOTDIR(file), -1)) | |
214 | continue; | |
215 | f_name(file, fname); | |
7f37167d WD |
216 | |
217 | if (verbose > 2) | |
f3d6d480 | 218 | rprintf(FINFO, "send_files(%d, %s%s%s)\n", ndx, path,slash,fname); |
8a9cfb24 | 219 | |
fad3dc42 | 220 | if (!(iflags & ITEM_TRANSFER)) { |
6087ef2a | 221 | maybe_log_item(file, iflags, itemizing, xname); |
165e6d44 WD |
222 | continue; |
223 | } | |
11290705 WD |
224 | if (phase == 2) { |
225 | rprintf(FERROR, | |
226 | "got transfer request in phase 2 [%s]\n", | |
227 | who_am_i()); | |
228 | exit_cleanup(RERR_PROTOCOL); | |
229 | } | |
8a9cfb24 | 230 | |
f3d6d480 WD |
231 | if (file->flags & FLAG_FILE_SENT) { |
232 | if (csum_length == SHORT_SUM_LENGTH) { | |
233 | /* For inplace: redo phase turns off the backup | |
234 | * flag so that we do a regular inplace send. */ | |
235 | make_backups = -make_backups; | |
236 | append_mode = -append_mode; | |
237 | csum_length = SUM_LENGTH; | |
238 | } | |
239 | } else { | |
240 | if (csum_length != SHORT_SUM_LENGTH) { | |
241 | make_backups = -make_backups; | |
242 | append_mode = -append_mode; | |
243 | csum_length = SHORT_SUM_LENGTH; | |
244 | } | |
245 | } | |
246 | ||
6087ef2a | 247 | updating_basis_file = inplace && (protocol_version >= 29 |
f3d6d480 | 248 | ? fnamecmp_type == FNAMECMP_FNAME : make_backups <= 0); |
b951e023 | 249 | |
f3d6d480 | 250 | stats.current_file_index = ndx; |
2f03f956 | 251 | stats.num_transferred_files++; |
112d728f | 252 | stats.total_transferred_size += F_LENGTH(file); |
2f03f956 | 253 | |
a0545709 | 254 | if (!do_xfers) { /* log the transfer */ |
85909931 | 255 | log_item(FCLIENT, file, &stats, iflags, NULL); |
f3d6d480 | 256 | write_ndx_and_attrs(f_out, ndx, iflags, fnamecmp_type, |
927c8068 | 257 | xname, xlen); |
2f03f956 AT |
258 | continue; |
259 | } | |
260 | ||
1b7c47cb AT |
261 | initial_stats = stats; |
262 | ||
efa95a18 | 263 | if (!(s = receive_sums(f_in))) { |
06c28400 | 264 | io_error |= IOERR_GENERAL; |
e6e3f12f | 265 | rprintf(FERROR, "receive_sums failed\n"); |
f3d6d480 | 266 | exit_cleanup(RERR_PROTOCOL); |
2f03f956 | 267 | } |
76f79ba7 | 268 | |
b9f592fb WD |
269 | fd = do_open(fname, O_RDONLY, 0); |
270 | if (fd == -1) { | |
271 | if (errno == ENOENT) { | |
272 | enum logcode c = am_daemon | |
273 | && protocol_version < 28 ? FERROR | |
274 | : FINFO; | |
275 | io_error |= IOERR_VANISHED; | |
276 | rprintf(c, "file has vanished: %s\n", | |
277 | full_fname(fname)); | |
278 | } else { | |
06c28400 | 279 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
280 | rsyserr(FERROR, errno, |
281 | "send_files failed to open %s", | |
282 | full_fname(fname)); | |
41cc97ae | 283 | } |
b9f592fb | 284 | free_sums(s); |
f3d6d480 WD |
285 | if (protocol_version >= 30) |
286 | send_msg_int(MSG_NO_SEND, ndx); | |
b9f592fb WD |
287 | continue; |
288 | } | |
e6e3f12f | 289 | |
b9f592fb WD |
290 | /* map the local file */ |
291 | if (do_fstat(fd, &st) != 0) { | |
292 | io_error |= IOERR_GENERAL; | |
293 | rsyserr(FERROR, errno, "fstat failed"); | |
294 | free_sums(s); | |
295 | close(fd); | |
f3d6d480 | 296 | exit_cleanup(RERR_PROTOCOL); |
b9f592fb | 297 | } |
11a5a3c7 | 298 | |
96d910c7 | 299 | if (st.st_size) { |
9b919d59 WD |
300 | int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE); |
301 | mbuf = map_file(fd, st.st_size, read_size, s->blength); | |
96d910c7 WD |
302 | } else |
303 | mbuf = NULL; | |
6902ed17 | 304 | |
b9f592fb | 305 | if (verbose > 2) { |
f3d6d480 WD |
306 | rprintf(FINFO, "send_files mapped %s%s%s of size %.0f\n", |
307 | path,slash,fname, (double)st.st_size); | |
6902ed17 | 308 | } |
e6e3f12f | 309 | |
f3d6d480 | 310 | write_ndx_and_attrs(f_out, ndx, iflags, fnamecmp_type, |
927c8068 | 311 | xname, xlen); |
a0545709 | 312 | write_sum_head(f_xfer, s); |
b9f592fb | 313 | |
45c49b52 | 314 | if (verbose > 2) |
f3d6d480 | 315 | rprintf(FINFO, "calling match_sums %s%s%s\n", path,slash,fname); |
83fff1aa | 316 | |
8a9cfb24 | 317 | if (log_before_transfer) |
85909931 | 318 | log_item(FCLIENT, file, &initial_stats, iflags, NULL); |
8a832465 | 319 | else if (!am_server && verbose && do_progress) |
f3d6d480 | 320 | rprintf(FCLIENT, "%s\n", fname); |
ecc81fce | 321 | |
83fff1aa | 322 | set_compression(fname); |
1b7c47cb | 323 | |
a0545709 | 324 | match_sums(f_xfer, s, mbuf, st.st_size); |
0394e34a WD |
325 | if (do_progress) |
326 | end_progress(st.st_size); | |
327 | ||
2fedf3d5 | 328 | log_item(log_code, file, &initial_stats, iflags, NULL); |
6902ed17 | 329 | |
b9f592fb WD |
330 | if (mbuf) { |
331 | j = unmap_file(mbuf); | |
332 | if (j) { | |
333 | io_error |= IOERR_GENERAL; | |
334 | rsyserr(FERROR, j, | |
335 | "read errors mapping %s", | |
336 | full_fname(fname)); | |
6a7cc46c | 337 | } |
6902ed17 | 338 | } |
b9f592fb | 339 | close(fd); |
e6e3f12f | 340 | |
2f03f956 | 341 | free_sums(s); |
e6e3f12f | 342 | |
45c49b52 | 343 | if (verbose > 2) |
f3d6d480 | 344 | rprintf(FINFO, "sender finished %s%s%s\n", path,slash,fname); |
95306d9d WD |
345 | |
346 | /* Flag that we actually sent this entry. */ | |
f3d6d480 | 347 | file->flags |= FLAG_FILE_SENT; |
2f03f956 | 348 | } |
f3d6d480 WD |
349 | if (make_backups < 0) |
350 | make_backups = -make_backups; | |
2f03f956 AT |
351 | |
352 | if (verbose > 2) | |
e6e3f12f | 353 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
354 | |
355 | match_report(); | |
356 | ||
9ae7a2cd | 357 | write_ndx(f_out, NDX_DONE); |
2f03f956 | 358 | } |