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; | |
8a9cfb24 | 23 | extern int log_before_transfer; |
2f03f956 AT |
24 | extern int csum_length; |
25 | extern struct stats stats; | |
26 | extern int io_error; | |
27 | extern int dry_run; | |
28 | extern int am_server; | |
d6631cf3 WD |
29 | extern int am_daemon; |
30 | extern int protocol_version; | |
53f8519a | 31 | extern int updating_basis_file; |
8b115ac8 | 32 | extern int make_backups; |
8a9cfb24 | 33 | extern int do_progress; |
53f8519a | 34 | extern int inplace; |
8a9cfb24 | 35 | extern char *log_format; |
a3221d2a | 36 | extern struct stats stats; |
2f03f956 AT |
37 | |
38 | ||
0f9c48b1 MP |
39 | /** |
40 | * @file | |
41 | * | |
42 | * The sender gets checksums from the generator, calculates deltas, | |
43 | * and transmits them to the receiver. The sender process runs on the | |
44 | * machine holding the source files. | |
45 | **/ | |
fc0257c9 | 46 | |
ce8149b6 MP |
47 | /** |
48 | * Receive the checksums for a buffer | |
49 | **/ | |
2f03f956 AT |
50 | static struct sum_struct *receive_sums(int f) |
51 | { | |
52 | struct sum_struct *s; | |
a1cbe76e | 53 | int32 i; |
2f03f956 AT |
54 | OFF_T offset = 0; |
55 | ||
a3221d2a WD |
56 | if (!(s = new(struct sum_struct))) |
57 | out_of_memory("receive_sums"); | |
2f03f956 | 58 | |
fc0257c9 S |
59 | read_sum_head(f, s); |
60 | ||
2f03f956 AT |
61 | s->sums = NULL; |
62 | ||
da9d12f5 | 63 | if (verbose > 3) { |
6c495e0d WD |
64 | rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n", |
65 | (double)s->count, (long)s->blength, (long)s->remainder); | |
da9d12f5 | 66 | } |
2f03f956 | 67 | |
e6e3f12f | 68 | if (s->count == 0) |
2f03f956 AT |
69 | return(s); |
70 | ||
a3221d2a WD |
71 | if (!(s->sums = new_array(struct sum_buf, s->count))) |
72 | out_of_memory("receive_sums"); | |
2f03f956 | 73 | |
eed47b6b | 74 | for (i = 0; i < s->count; i++) { |
2f03f956 | 75 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 76 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
77 | |
78 | s->sums[i].offset = offset; | |
a3221d2a | 79 | s->sums[i].flags = 0; |
2f03f956 | 80 | |
eed47b6b | 81 | if (i == s->count-1 && s->remainder != 0) |
2f03f956 | 82 | s->sums[i].len = s->remainder; |
a3221d2a | 83 | else |
fc0257c9 | 84 | s->sums[i].len = s->blength; |
2f03f956 AT |
85 | offset += s->sums[i].len; |
86 | ||
a3221d2a WD |
87 | if (verbose > 3) { |
88 | rprintf(FINFO, | |
89 | "chunk[%d] len=%d offset=%.0f sum1=%08x\n", | |
90 | i, s->sums[i].len, (double)s->sums[i].offset, | |
91 | s->sums[i].sum1); | |
92 | } | |
2f03f956 AT |
93 | } |
94 | ||
95 | s->flength = offset; | |
96 | ||
97 | return s; | |
98 | } | |
99 | ||
100 | ||
101 | ||
e6e3f12f S |
102 | void send_files(struct file_list *flist, int f_out, int f_in) |
103 | { | |
c1659c79 | 104 | int fd = -1; |
2f03f956 | 105 | struct sum_struct *s; |
41cc97ae | 106 | struct map_struct *mbuf = NULL; |
2f03f956 | 107 | STRUCT_STAT st; |
ecc81fce | 108 | char *fname2, fname[MAXPATHLEN]; |
8a9cfb24 | 109 | int iflags; |
2f03f956 AT |
110 | struct file_struct *file; |
111 | int phase = 0; | |
1b7c47cb | 112 | struct stats initial_stats; |
8b115ac8 | 113 | int save_make_backups = make_backups; |
8a9cfb24 | 114 | int i, j; |
2f03f956 AT |
115 | |
116 | if (verbose > 2) | |
e6e3f12f | 117 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 118 | |
2f03f956 | 119 | while (1) { |
3fef5364 | 120 | unsigned int offset; |
2f03f956 AT |
121 | |
122 | i = read_int(f_in); | |
123 | if (i == -1) { | |
e6e3f12f | 124 | if (phase == 0) { |
2f03f956 AT |
125 | phase++; |
126 | csum_length = SUM_LENGTH; | |
e6e3f12f | 127 | write_int(f_out, -1); |
2f03f956 | 128 | if (verbose > 2) |
e6e3f12f | 129 | rprintf(FINFO, "send_files phase=%d\n", phase); |
9715c589 WD |
130 | /* For inplace: redo phase turns off the backup |
131 | * flag so that we do a regular inplace send. */ | |
8b115ac8 | 132 | make_backups = 0; |
2f03f956 AT |
133 | continue; |
134 | } | |
135 | break; | |
136 | } | |
137 | ||
138 | if (i < 0 || i >= flist->count) { | |
e6e3f12f | 139 | rprintf(FERROR, "Invalid file index %d (count=%d)\n", |
2f03f956 | 140 | i, flist->count); |
65417579 | 141 | exit_cleanup(RERR_PROTOCOL); |
2f03f956 AT |
142 | } |
143 | ||
8a9cfb24 WD |
144 | file = flist->files[i]; |
145 | ||
8a832465 | 146 | if (protocol_version >= 29) { |
8a9cfb24 | 147 | iflags = read_byte(f_in); |
8a832465 | 148 | iflags |= read_byte(f_in) << 8; |
8a9cfb24 WD |
149 | if (!(iflags & ITEM_UPDATING) || !S_ISREG(file->mode)) { |
150 | if (am_server) { | |
151 | write_int(f_out, i); | |
152 | write_byte(f_out, iflags); | |
8a832465 | 153 | write_byte(f_out, iflags >> 8); |
8a9cfb24 WD |
154 | } else |
155 | log_send(file, &stats, iflags); | |
156 | continue; | |
157 | } | |
158 | } else | |
159 | iflags = ITEM_UPDATING | ITEM_MISSING_DATA; | |
160 | ||
b951e023 WD |
161 | if (inplace && protocol_version >= 29) { |
162 | uchar fnamecmp_type = read_byte(f_in); | |
163 | updating_basis_file = fnamecmp_type == FNAMECMP_FNAME; | |
164 | } else | |
165 | updating_basis_file = inplace && !make_backups; | |
166 | ||
8a9cfb24 WD |
167 | if (!S_ISREG(file->mode)) { |
168 | rprintf(FERROR, "[%s] got index of non-regular file: %d\n", | |
afd72c78 WD |
169 | who_am_i(), i); |
170 | exit_cleanup(RERR_PROTOCOL); | |
171 | } | |
2f03f956 | 172 | |
97feb557 | 173 | stats.current_file_index = i; |
2f03f956 AT |
174 | stats.num_transferred_files++; |
175 | stats.total_transferred_size += file->length; | |
176 | ||
2b136663 | 177 | if (file->dir.root) { |
421c2a24 | 178 | /* N.B. We're sure that this fits, so offset is OK. */ |
2b136663 | 179 | offset = strlcpy(fname, file->dir.root, sizeof fname); |
421c2a24 WD |
180 | if (!offset || fname[offset-1] != '/') |
181 | fname[offset++] = '/'; | |
3fef5364 WD |
182 | } else |
183 | offset = 0; | |
ecc81fce | 184 | fname2 = f_name_to(file, fname + offset); |
e6e3f12f S |
185 | |
186 | if (verbose > 2) | |
187 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
188 | ||
a8ed4958 | 189 | if (dry_run) { /* log the transfer */ |
8a832465 | 190 | if (!am_server && log_format) |
8a9cfb24 | 191 | log_send(file, &stats, iflags); |
e6e3f12f | 192 | write_int(f_out, i); |
8a832465 | 193 | if (protocol_version >= 29) { |
8a9cfb24 | 194 | write_byte(f_out, iflags); |
8a832465 WD |
195 | write_byte(f_out, iflags >> 8); |
196 | } | |
2f03f956 AT |
197 | continue; |
198 | } | |
199 | ||
1b7c47cb AT |
200 | initial_stats = stats; |
201 | ||
efa95a18 | 202 | if (!(s = receive_sums(f_in))) { |
06c28400 | 203 | io_error |= IOERR_GENERAL; |
e6e3f12f | 204 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
205 | return; |
206 | } | |
76f79ba7 | 207 | |
b9f592fb WD |
208 | fd = do_open(fname, O_RDONLY, 0); |
209 | if (fd == -1) { | |
210 | if (errno == ENOENT) { | |
211 | enum logcode c = am_daemon | |
212 | && protocol_version < 28 ? FERROR | |
213 | : FINFO; | |
214 | io_error |= IOERR_VANISHED; | |
215 | rprintf(c, "file has vanished: %s\n", | |
216 | full_fname(fname)); | |
217 | } else { | |
06c28400 | 218 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
219 | rsyserr(FERROR, errno, |
220 | "send_files failed to open %s", | |
221 | full_fname(fname)); | |
41cc97ae | 222 | } |
b9f592fb WD |
223 | free_sums(s); |
224 | continue; | |
225 | } | |
e6e3f12f | 226 | |
b9f592fb WD |
227 | /* map the local file */ |
228 | if (do_fstat(fd, &st) != 0) { | |
229 | io_error |= IOERR_GENERAL; | |
230 | rsyserr(FERROR, errno, "fstat failed"); | |
231 | free_sums(s); | |
232 | close(fd); | |
233 | return; | |
234 | } | |
11a5a3c7 | 235 | |
96d910c7 | 236 | if (st.st_size) { |
9b919d59 WD |
237 | int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE); |
238 | mbuf = map_file(fd, st.st_size, read_size, s->blength); | |
96d910c7 WD |
239 | } else |
240 | mbuf = NULL; | |
6902ed17 | 241 | |
b9f592fb WD |
242 | if (verbose > 2) { |
243 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", | |
ecc81fce | 244 | safe_fname(fname), (double)st.st_size); |
6902ed17 | 245 | } |
e6e3f12f | 246 | |
b9f592fb | 247 | write_int(f_out, i); |
8a832465 | 248 | if (protocol_version >= 29) { |
8a9cfb24 | 249 | write_byte(f_out, iflags); |
8a832465 WD |
250 | write_byte(f_out, iflags >> 8); |
251 | } | |
b9f592fb WD |
252 | write_sum_head(f_out, s); |
253 | ||
ecc81fce WD |
254 | if (verbose > 2) { |
255 | rprintf(FINFO, "calling match_sums %s\n", | |
256 | safe_fname(fname)); | |
11a5a3c7 | 257 | } |
83fff1aa | 258 | |
8a9cfb24 WD |
259 | if (log_before_transfer) |
260 | log_send(file, &initial_stats, iflags); | |
8a832465 | 261 | else if (!am_server && verbose && do_progress) |
ecc81fce WD |
262 | rprintf(FINFO, "%s\n", safe_fname(fname2)); |
263 | ||
83fff1aa | 264 | set_compression(fname); |
1b7c47cb | 265 | |
b9f592fb | 266 | match_sums(f_out, s, mbuf, st.st_size); |
8a9cfb24 WD |
267 | if (!log_before_transfer) |
268 | log_send(file, &initial_stats, iflags); | |
6902ed17 | 269 | |
b9f592fb WD |
270 | if (mbuf) { |
271 | j = unmap_file(mbuf); | |
272 | if (j) { | |
273 | io_error |= IOERR_GENERAL; | |
274 | rsyserr(FERROR, j, | |
275 | "read errors mapping %s", | |
276 | full_fname(fname)); | |
6a7cc46c | 277 | } |
6902ed17 | 278 | } |
b9f592fb | 279 | close(fd); |
e6e3f12f | 280 | |
2f03f956 | 281 | free_sums(s); |
e6e3f12f | 282 | |
ecc81fce WD |
283 | if (verbose > 2) { |
284 | rprintf(FINFO, "sender finished %s\n", | |
285 | safe_fname(fname)); | |
286 | } | |
2f03f956 | 287 | } |
8b115ac8 | 288 | make_backups = save_make_backups; |
2f03f956 AT |
289 | |
290 | if (verbose > 2) | |
e6e3f12f | 291 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
292 | |
293 | match_report(); | |
294 | ||
e6e3f12f | 295 | write_int(f_out, -1); |
2f03f956 | 296 | } |