Commit | Line | Data |
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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; |
8715db2c | 38 | extern char *log_format; |
2f03f956 AT |
39 | |
40 | ||
0f9c48b1 MP |
41 | /** |
42 | * @file | |
43 | * | |
44 | * The sender gets checksums from the generator, calculates deltas, | |
45 | * and transmits them to the receiver. The sender process runs on the | |
46 | * machine holding the source files. | |
47 | **/ | |
fc0257c9 | 48 | |
ce8149b6 MP |
49 | /** |
50 | * Receive the checksums for a buffer | |
51 | **/ | |
2f03f956 AT |
52 | static struct sum_struct *receive_sums(int f) |
53 | { | |
54 | struct sum_struct *s; | |
a1cbe76e | 55 | int32 i; |
2f03f956 AT |
56 | OFF_T offset = 0; |
57 | ||
a3221d2a WD |
58 | if (!(s = new(struct sum_struct))) |
59 | out_of_memory("receive_sums"); | |
2f03f956 | 60 | |
fc0257c9 S |
61 | read_sum_head(f, s); |
62 | ||
2f03f956 AT |
63 | s->sums = NULL; |
64 | ||
da9d12f5 | 65 | if (verbose > 3) { |
6c495e0d WD |
66 | rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n", |
67 | (double)s->count, (long)s->blength, (long)s->remainder); | |
da9d12f5 | 68 | } |
2f03f956 | 69 | |
e6e3f12f | 70 | if (s->count == 0) |
2f03f956 AT |
71 | return(s); |
72 | ||
a3221d2a WD |
73 | if (!(s->sums = new_array(struct sum_buf, s->count))) |
74 | out_of_memory("receive_sums"); | |
2f03f956 | 75 | |
eed47b6b | 76 | for (i = 0; i < s->count; i++) { |
2f03f956 | 77 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 78 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
79 | |
80 | s->sums[i].offset = offset; | |
a3221d2a | 81 | s->sums[i].flags = 0; |
2f03f956 | 82 | |
eed47b6b | 83 | if (i == s->count-1 && s->remainder != 0) |
2f03f956 | 84 | s->sums[i].len = s->remainder; |
a3221d2a | 85 | else |
fc0257c9 | 86 | s->sums[i].len = s->blength; |
2f03f956 AT |
87 | offset += s->sums[i].len; |
88 | ||
a3221d2a WD |
89 | if (verbose > 3) { |
90 | rprintf(FINFO, | |
91 | "chunk[%d] len=%d offset=%.0f sum1=%08x\n", | |
92 | i, s->sums[i].len, (double)s->sums[i].offset, | |
93 | s->sums[i].sum1); | |
94 | } | |
2f03f956 AT |
95 | } |
96 | ||
97 | s->flength = offset; | |
98 | ||
99 | return s; | |
100 | } | |
101 | ||
95306d9d | 102 | static struct file_list *the_flist; |
2f03f956 | 103 | |
95306d9d WD |
104 | void successful_send(int i) |
105 | { | |
106 | char fname[MAXPATHLEN]; | |
107 | struct file_struct *file; | |
108 | unsigned int offset; | |
109 | ||
110 | if (!the_flist || i < 0 || i >= the_flist->count) | |
111 | return; | |
112 | ||
113 | file = the_flist->files[i]; | |
114 | /* The generator might tell us about symlinks we didn't send. */ | |
115 | if (!(file->flags & FLAG_SENT) && !S_ISLNK(file->mode)) | |
116 | return; | |
117 | if (file->dir.root) { | |
118 | offset = stringjoin(fname, sizeof fname, | |
119 | file->dir.root, "/", NULL); | |
120 | } else | |
121 | offset = 0; | |
122 | f_name_to(file, fname + offset); | |
123 | if (remove_sent_files && do_unlink(fname) == 0 && verbose > 1) { | |
124 | rprintf(FINFO, "sender removed %s\n", | |
125 | safe_fname(fname + offset)); | |
126 | } | |
127 | } | |
2f03f956 | 128 | |
e6e3f12f S |
129 | void send_files(struct file_list *flist, int f_out, int f_in) |
130 | { | |
c1659c79 | 131 | int fd = -1; |
2f03f956 | 132 | struct sum_struct *s; |
41cc97ae | 133 | struct map_struct *mbuf = NULL; |
2f03f956 | 134 | STRUCT_STAT st; |
ecc81fce | 135 | char *fname2, fname[MAXPATHLEN]; |
8a9cfb24 | 136 | int iflags; |
2f03f956 AT |
137 | struct file_struct *file; |
138 | int phase = 0; | |
1b7c47cb | 139 | struct stats initial_stats; |
8b115ac8 | 140 | int save_make_backups = make_backups; |
7f37167d WD |
141 | int itemizing = am_daemon ? daemon_log_format_has_i |
142 | : !am_server && log_format_has_i; | |
8a9cfb24 | 143 | int i, j; |
2f03f956 AT |
144 | |
145 | if (verbose > 2) | |
e6e3f12f | 146 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 147 | |
95306d9d WD |
148 | the_flist = flist; |
149 | ||
2f03f956 | 150 | while (1) { |
3fef5364 | 151 | unsigned int offset; |
2f03f956 AT |
152 | |
153 | i = read_int(f_in); | |
154 | if (i == -1) { | |
e6e3f12f | 155 | if (phase == 0) { |
2f03f956 AT |
156 | phase++; |
157 | csum_length = SUM_LENGTH; | |
e6e3f12f | 158 | write_int(f_out, -1); |
2f03f956 | 159 | if (verbose > 2) |
e6e3f12f | 160 | rprintf(FINFO, "send_files phase=%d\n", phase); |
9715c589 WD |
161 | /* For inplace: redo phase turns off the backup |
162 | * flag so that we do a regular inplace send. */ | |
8b115ac8 | 163 | make_backups = 0; |
2f03f956 AT |
164 | continue; |
165 | } | |
166 | break; | |
167 | } | |
168 | ||
169 | if (i < 0 || i >= flist->count) { | |
e6e3f12f | 170 | rprintf(FERROR, "Invalid file index %d (count=%d)\n", |
2f03f956 | 171 | i, flist->count); |
65417579 | 172 | exit_cleanup(RERR_PROTOCOL); |
2f03f956 AT |
173 | } |
174 | ||
8a9cfb24 | 175 | file = flist->files[i]; |
7f37167d WD |
176 | if (file->dir.root) { |
177 | /* N.B. We're sure that this fits, so offset is OK. */ | |
178 | offset = strlcpy(fname, file->dir.root, sizeof fname); | |
179 | if (!offset || fname[offset-1] != '/') | |
180 | fname[offset++] = '/'; | |
181 | } else | |
182 | offset = 0; | |
183 | fname2 = f_name_to(file, fname + offset); | |
184 | ||
185 | if (verbose > 2) | |
186 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
8a9cfb24 | 187 | |
8a832465 | 188 | if (protocol_version >= 29) { |
742be97c | 189 | iflags = read_shortint(f_in); |
8a9cfb24 | 190 | if (!(iflags & ITEM_UPDATING) || !S_ISREG(file->mode)) { |
7f37167d WD |
191 | int see_item = itemizing && (iflags || verbose > 1); |
192 | write_int(f_out, i); | |
193 | write_shortint(f_out, iflags); | |
8a9cfb24 | 194 | if (am_server) { |
7f37167d | 195 | if (am_daemon && !dry_run && see_item) |
9118a09c | 196 | log_send(file, &stats, iflags); |
7f37167d | 197 | } else if (see_item || iflags & ITEM_UPDATING |
e844be4e WD |
198 | || (S_ISDIR(file->mode) |
199 | && iflags & ITEM_REPORT_TIME)) | |
9118a09c | 200 | log_send(file, &stats, iflags); |
8a9cfb24 WD |
201 | continue; |
202 | } | |
203 | } else | |
204 | iflags = ITEM_UPDATING | ITEM_MISSING_DATA; | |
205 | ||
b951e023 WD |
206 | if (inplace && protocol_version >= 29) { |
207 | uchar fnamecmp_type = read_byte(f_in); | |
208 | updating_basis_file = fnamecmp_type == FNAMECMP_FNAME; | |
209 | } else | |
210 | updating_basis_file = inplace && !make_backups; | |
211 | ||
8a9cfb24 WD |
212 | if (!S_ISREG(file->mode)) { |
213 | rprintf(FERROR, "[%s] got index of non-regular file: %d\n", | |
afd72c78 WD |
214 | who_am_i(), i); |
215 | exit_cleanup(RERR_PROTOCOL); | |
216 | } | |
2f03f956 | 217 | |
97feb557 | 218 | stats.current_file_index = i; |
2f03f956 AT |
219 | stats.num_transferred_files++; |
220 | stats.total_transferred_size += file->length; | |
221 | ||
a8ed4958 | 222 | if (dry_run) { /* log the transfer */ |
8a832465 | 223 | if (!am_server && log_format) |
8a9cfb24 | 224 | log_send(file, &stats, iflags); |
e6e3f12f | 225 | write_int(f_out, i); |
e844be4e | 226 | if (protocol_version >= 29) |
742be97c | 227 | write_shortint(f_out, iflags); |
2f03f956 AT |
228 | continue; |
229 | } | |
230 | ||
1b7c47cb AT |
231 | initial_stats = stats; |
232 | ||
efa95a18 | 233 | if (!(s = receive_sums(f_in))) { |
06c28400 | 234 | io_error |= IOERR_GENERAL; |
e6e3f12f | 235 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
236 | return; |
237 | } | |
76f79ba7 | 238 | |
b9f592fb WD |
239 | fd = do_open(fname, O_RDONLY, 0); |
240 | if (fd == -1) { | |
241 | if (errno == ENOENT) { | |
242 | enum logcode c = am_daemon | |
243 | && protocol_version < 28 ? FERROR | |
244 | : FINFO; | |
245 | io_error |= IOERR_VANISHED; | |
246 | rprintf(c, "file has vanished: %s\n", | |
247 | full_fname(fname)); | |
248 | } else { | |
06c28400 | 249 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
250 | rsyserr(FERROR, errno, |
251 | "send_files failed to open %s", | |
252 | full_fname(fname)); | |
41cc97ae | 253 | } |
b9f592fb WD |
254 | free_sums(s); |
255 | continue; | |
256 | } | |
e6e3f12f | 257 | |
b9f592fb WD |
258 | /* map the local file */ |
259 | if (do_fstat(fd, &st) != 0) { | |
260 | io_error |= IOERR_GENERAL; | |
261 | rsyserr(FERROR, errno, "fstat failed"); | |
262 | free_sums(s); | |
263 | close(fd); | |
264 | return; | |
265 | } | |
11a5a3c7 | 266 | |
96d910c7 | 267 | if (st.st_size) { |
9b919d59 WD |
268 | int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE); |
269 | mbuf = map_file(fd, st.st_size, read_size, s->blength); | |
96d910c7 WD |
270 | } else |
271 | mbuf = NULL; | |
6902ed17 | 272 | |
b9f592fb WD |
273 | if (verbose > 2) { |
274 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", | |
ecc81fce | 275 | safe_fname(fname), (double)st.st_size); |
6902ed17 | 276 | } |
e6e3f12f | 277 | |
b9f592fb | 278 | write_int(f_out, i); |
e844be4e | 279 | if (protocol_version >= 29) |
742be97c | 280 | write_shortint(f_out, iflags); |
b9f592fb WD |
281 | write_sum_head(f_out, s); |
282 | ||
ecc81fce WD |
283 | if (verbose > 2) { |
284 | rprintf(FINFO, "calling match_sums %s\n", | |
285 | safe_fname(fname)); | |
11a5a3c7 | 286 | } |
83fff1aa | 287 | |
8a9cfb24 WD |
288 | if (log_before_transfer) |
289 | log_send(file, &initial_stats, iflags); | |
8a832465 | 290 | else if (!am_server && verbose && do_progress) |
ecc81fce WD |
291 | rprintf(FINFO, "%s\n", safe_fname(fname2)); |
292 | ||
83fff1aa | 293 | set_compression(fname); |
1b7c47cb | 294 | |
b9f592fb | 295 | match_sums(f_out, s, mbuf, st.st_size); |
8a9cfb24 WD |
296 | if (!log_before_transfer) |
297 | log_send(file, &initial_stats, iflags); | |
6902ed17 | 298 | |
b9f592fb WD |
299 | if (mbuf) { |
300 | j = unmap_file(mbuf); | |
301 | if (j) { | |
302 | io_error |= IOERR_GENERAL; | |
303 | rsyserr(FERROR, j, | |
304 | "read errors mapping %s", | |
305 | full_fname(fname)); | |
6a7cc46c | 306 | } |
6902ed17 | 307 | } |
b9f592fb | 308 | close(fd); |
e6e3f12f | 309 | |
2f03f956 | 310 | free_sums(s); |
e6e3f12f | 311 | |
ecc81fce WD |
312 | if (verbose > 2) { |
313 | rprintf(FINFO, "sender finished %s\n", | |
314 | safe_fname(fname)); | |
315 | } | |
95306d9d WD |
316 | |
317 | /* Flag that we actually sent this entry. */ | |
318 | file->flags |= FLAG_SENT; | |
2f03f956 | 319 | } |
8b115ac8 | 320 | make_backups = save_make_backups; |
2f03f956 AT |
321 | |
322 | if (verbose > 2) | |
e6e3f12f | 323 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
324 | |
325 | match_report(); | |
326 | ||
e6e3f12f | 327 | write_int(f_out, -1); |
2f03f956 | 328 | } |