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4f36159a | 1 | /* $OpenBSD: sftp-client.c,v 1.83 2008/06/07 21:52:46 djm Exp $ */ |
61e96248 | 2 | /* |
ab3932ab | 3 | * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> |
61e96248 | 4 | * |
ab3932ab | 5 | * Permission to use, copy, modify, and distribute this software for any |
6 | * purpose with or without fee is hereby granted, provided that the above | |
7 | * copyright notice and this permission notice appear in all copies. | |
61e96248 | 8 | * |
ab3932ab | 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
61e96248 | 16 | */ |
17 | ||
18 | /* XXX: memleaks */ | |
19 | /* XXX: signed vs unsigned */ | |
22e6c827 | 20 | /* XXX: remove all logging, only return status codes */ |
61e96248 | 21 | /* XXX: copy between two remote sites */ |
22 | ||
23 | #include "includes.h" | |
4095f623 | 24 | |
25 | #include <sys/types.h> | |
536c14e8 | 26 | #include <sys/param.h> |
4538e135 | 27 | #ifdef HAVE_SYS_STATVFS_H |
360b43ab | 28 | #include <sys/statvfs.h> |
4538e135 | 29 | #endif |
31652869 | 30 | #include "openbsd-compat/sys-queue.h" |
4095f623 | 31 | #ifdef HAVE_SYS_STAT_H |
32 | # include <sys/stat.h> | |
33 | #endif | |
e264ac72 | 34 | #ifdef HAVE_SYS_TIME_H |
35 | # include <sys/time.h> | |
36 | #endif | |
31652869 | 37 | #include <sys/uio.h> |
d3221cca | 38 | |
028094f4 | 39 | #include <errno.h> |
d3221cca | 40 | #include <fcntl.h> |
41 | #include <signal.h> | |
31652869 | 42 | #include <stdarg.h> |
cf851879 | 43 | #include <stdio.h> |
00146caa | 44 | #include <string.h> |
5188ba17 | 45 | #include <unistd.h> |
c25d3df7 | 46 | |
61e96248 | 47 | #include "xmalloc.h" |
31652869 | 48 | #include "buffer.h" |
61e96248 | 49 | #include "log.h" |
50 | #include "atomicio.h" | |
b65c3807 | 51 | #include "progressmeter.h" |
51e7a012 | 52 | #include "misc.h" |
61e96248 | 53 | |
54 | #include "sftp.h" | |
55 | #include "sftp-common.h" | |
56 | #include "sftp-client.h" | |
57 | ||
0e5de6f8 | 58 | extern volatile sig_atomic_t interrupted; |
b65c3807 | 59 | extern int showprogress; |
60 | ||
2db34ac9 | 61 | /* Minimum amount of data to read at a time */ |
c25d3df7 | 62 | #define MIN_READ_SIZE 512 |
63 | ||
22e6c827 | 64 | struct sftp_conn { |
65 | int fd_in; | |
66 | int fd_out; | |
67 | u_int transfer_buflen; | |
68 | u_int num_requests; | |
69 | u_int version; | |
70 | u_int msg_id; | |
360b43ab | 71 | #define SFTP_EXT_POSIX_RENAME 0x00000001 |
72 | #define SFTP_EXT_STATVFS 0x00000002 | |
73 | #define SFTP_EXT_FSTATVFS 0x00000004 | |
530f04a8 | 74 | u_int exts; |
22e6c827 | 75 | }; |
9c5a8165 | 76 | |
396c147e | 77 | static void |
61e96248 | 78 | send_msg(int fd, Buffer *m) |
79 | { | |
bf0bf24b | 80 | u_char mlen[4]; |
2c4369de | 81 | struct iovec iov[2]; |
bf0bf24b | 82 | |
3eee3b86 | 83 | if (buffer_len(m) > SFTP_MAX_MSG_LENGTH) |
bf0bf24b | 84 | fatal("Outbound message too long %u", buffer_len(m)); |
61e96248 | 85 | |
bf0bf24b | 86 | /* Send length first */ |
51e7a012 | 87 | put_u32(mlen, buffer_len(m)); |
2c4369de | 88 | iov[0].iov_base = mlen; |
89 | iov[0].iov_len = sizeof(mlen); | |
90 | iov[1].iov_base = buffer_ptr(m); | |
91 | iov[1].iov_len = buffer_len(m); | |
31652869 | 92 | |
2c4369de | 93 | if (atomiciov(writev, fd, iov, 2) != buffer_len(m) + sizeof(mlen)) |
61e96248 | 94 | fatal("Couldn't send packet: %s", strerror(errno)); |
95 | ||
bf0bf24b | 96 | buffer_clear(m); |
61e96248 | 97 | } |
98 | ||
396c147e | 99 | static void |
61e96248 | 100 | get_msg(int fd, Buffer *m) |
101 | { | |
bf0bf24b | 102 | u_int msg_len; |
61e96248 | 103 | |
bf0bf24b | 104 | buffer_append_space(m, 4); |
05624c18 | 105 | if (atomicio(read, fd, buffer_ptr(m), 4) != 4) { |
106 | if (errno == EPIPE) | |
107 | fatal("Connection closed"); | |
108 | else | |
109 | fatal("Couldn't read packet: %s", strerror(errno)); | |
110 | } | |
61e96248 | 111 | |
bf0bf24b | 112 | msg_len = buffer_get_int(m); |
3eee3b86 | 113 | if (msg_len > SFTP_MAX_MSG_LENGTH) |
9906a836 | 114 | fatal("Received message too long %u", msg_len); |
61e96248 | 115 | |
bf0bf24b | 116 | buffer_append_space(m, msg_len); |
05624c18 | 117 | if (atomicio(read, fd, buffer_ptr(m), msg_len) != msg_len) { |
118 | if (errno == EPIPE) | |
119 | fatal("Connection closed"); | |
120 | else | |
121 | fatal("Read packet: %s", strerror(errno)); | |
122 | } | |
61e96248 | 123 | } |
124 | ||
396c147e | 125 | static void |
61e96248 | 126 | send_string_request(int fd, u_int id, u_int code, char *s, |
127 | u_int len) | |
128 | { | |
129 | Buffer msg; | |
130 | ||
131 | buffer_init(&msg); | |
132 | buffer_put_char(&msg, code); | |
133 | buffer_put_int(&msg, id); | |
134 | buffer_put_string(&msg, s, len); | |
135 | send_msg(fd, &msg); | |
9906a836 | 136 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
61e96248 | 137 | buffer_free(&msg); |
138 | } | |
139 | ||
396c147e | 140 | static void |
61e96248 | 141 | send_string_attrs_request(int fd, u_int id, u_int code, char *s, |
142 | u_int len, Attrib *a) | |
143 | { | |
144 | Buffer msg; | |
145 | ||
146 | buffer_init(&msg); | |
147 | buffer_put_char(&msg, code); | |
148 | buffer_put_int(&msg, id); | |
149 | buffer_put_string(&msg, s, len); | |
150 | encode_attrib(&msg, a); | |
151 | send_msg(fd, &msg); | |
9906a836 | 152 | debug3("Sent message fd %d T:%u I:%u", fd, code, id); |
61e96248 | 153 | buffer_free(&msg); |
154 | } | |
155 | ||
396c147e | 156 | static u_int |
9906a836 | 157 | get_status(int fd, u_int expected_id) |
61e96248 | 158 | { |
159 | Buffer msg; | |
160 | u_int type, id, status; | |
161 | ||
162 | buffer_init(&msg); | |
163 | get_msg(fd, &msg); | |
164 | type = buffer_get_char(&msg); | |
165 | id = buffer_get_int(&msg); | |
166 | ||
167 | if (id != expected_id) | |
9906a836 | 168 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 169 | if (type != SSH2_FXP_STATUS) |
9906a836 | 170 | fatal("Expected SSH2_FXP_STATUS(%u) packet, got %u", |
61e96248 | 171 | SSH2_FXP_STATUS, type); |
172 | ||
173 | status = buffer_get_int(&msg); | |
174 | buffer_free(&msg); | |
175 | ||
9906a836 | 176 | debug3("SSH2_FXP_STATUS %u", status); |
61e96248 | 177 | |
178 | return(status); | |
179 | } | |
180 | ||
396c147e | 181 | static char * |
61e96248 | 182 | get_handle(int fd, u_int expected_id, u_int *len) |
183 | { | |
184 | Buffer msg; | |
185 | u_int type, id; | |
186 | char *handle; | |
187 | ||
188 | buffer_init(&msg); | |
189 | get_msg(fd, &msg); | |
190 | type = buffer_get_char(&msg); | |
191 | id = buffer_get_int(&msg); | |
192 | ||
193 | if (id != expected_id) | |
9906a836 | 194 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 195 | if (type == SSH2_FXP_STATUS) { |
196 | int status = buffer_get_int(&msg); | |
197 | ||
198 | error("Couldn't get handle: %s", fx2txt(status)); | |
aa41be57 | 199 | buffer_free(&msg); |
61e96248 | 200 | return(NULL); |
201 | } else if (type != SSH2_FXP_HANDLE) | |
9906a836 | 202 | fatal("Expected SSH2_FXP_HANDLE(%u) packet, got %u", |
61e96248 | 203 | SSH2_FXP_HANDLE, type); |
204 | ||
205 | handle = buffer_get_string(&msg, len); | |
206 | buffer_free(&msg); | |
207 | ||
208 | return(handle); | |
209 | } | |
210 | ||
396c147e | 211 | static Attrib * |
d50d9b63 | 212 | get_decode_stat(int fd, u_int expected_id, int quiet) |
61e96248 | 213 | { |
214 | Buffer msg; | |
215 | u_int type, id; | |
216 | Attrib *a; | |
217 | ||
218 | buffer_init(&msg); | |
219 | get_msg(fd, &msg); | |
220 | ||
221 | type = buffer_get_char(&msg); | |
222 | id = buffer_get_int(&msg); | |
223 | ||
9906a836 | 224 | debug3("Received stat reply T:%u I:%u", type, id); |
61e96248 | 225 | if (id != expected_id) |
9906a836 | 226 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 227 | if (type == SSH2_FXP_STATUS) { |
228 | int status = buffer_get_int(&msg); | |
229 | ||
d50d9b63 | 230 | if (quiet) |
231 | debug("Couldn't stat remote file: %s", fx2txt(status)); | |
232 | else | |
233 | error("Couldn't stat remote file: %s", fx2txt(status)); | |
aa41be57 | 234 | buffer_free(&msg); |
61e96248 | 235 | return(NULL); |
236 | } else if (type != SSH2_FXP_ATTRS) { | |
9906a836 | 237 | fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u", |
61e96248 | 238 | SSH2_FXP_ATTRS, type); |
239 | } | |
240 | a = decode_attrib(&msg); | |
241 | buffer_free(&msg); | |
242 | ||
243 | return(a); | |
244 | } | |
245 | ||
360b43ab | 246 | static int |
247 | get_decode_statvfs(int fd, struct statvfs *st, u_int expected_id, int quiet) | |
248 | { | |
249 | Buffer msg; | |
250 | u_int type, id, flag; | |
251 | ||
252 | buffer_init(&msg); | |
253 | get_msg(fd, &msg); | |
254 | ||
255 | type = buffer_get_char(&msg); | |
256 | id = buffer_get_int(&msg); | |
257 | ||
258 | debug3("Received statvfs reply T:%u I:%u", type, id); | |
259 | if (id != expected_id) | |
260 | fatal("ID mismatch (%u != %u)", id, expected_id); | |
261 | if (type == SSH2_FXP_STATUS) { | |
262 | int status = buffer_get_int(&msg); | |
263 | ||
264 | if (quiet) | |
265 | debug("Couldn't statvfs: %s", fx2txt(status)); | |
266 | else | |
267 | error("Couldn't statvfs: %s", fx2txt(status)); | |
268 | buffer_free(&msg); | |
269 | return -1; | |
270 | } else if (type != SSH2_FXP_EXTENDED_REPLY) { | |
271 | fatal("Expected SSH2_FXP_EXTENDED_REPLY(%u) packet, got %u", | |
272 | SSH2_FXP_EXTENDED_REPLY, type); | |
273 | } | |
274 | ||
275 | bzero(st, sizeof(*st)); | |
276 | st->f_bsize = buffer_get_int(&msg); | |
277 | st->f_frsize = buffer_get_int(&msg); | |
278 | st->f_blocks = buffer_get_int64(&msg); | |
279 | st->f_bfree = buffer_get_int64(&msg); | |
280 | st->f_bavail = buffer_get_int64(&msg); | |
281 | st->f_files = buffer_get_int64(&msg); | |
282 | st->f_ffree = buffer_get_int64(&msg); | |
283 | st->f_favail = buffer_get_int64(&msg); | |
4f36159a | 284 | st->f_fsid = buffer_get_int64(&msg); |
360b43ab | 285 | flag = buffer_get_int(&msg); |
286 | st->f_namemax = buffer_get_int(&msg); | |
287 | ||
288 | st->f_flag = (flag & SSH2_FXE_STATVFS_ST_RDONLY) ? ST_RDONLY : 0; | |
289 | st->f_flag |= (flag & SSH2_FXE_STATVFS_ST_NOSUID) ? ST_NOSUID : 0; | |
290 | ||
291 | buffer_free(&msg); | |
292 | ||
293 | return 0; | |
294 | } | |
295 | ||
22e6c827 | 296 | struct sftp_conn * |
297 | do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests) | |
61e96248 | 298 | { |
530f04a8 | 299 | u_int type, exts = 0; |
9906a836 | 300 | int version; |
61e96248 | 301 | Buffer msg; |
22e6c827 | 302 | struct sftp_conn *ret; |
61e96248 | 303 | |
304 | buffer_init(&msg); | |
305 | buffer_put_char(&msg, SSH2_FXP_INIT); | |
306 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); | |
307 | send_msg(fd_out, &msg); | |
308 | ||
309 | buffer_clear(&msg); | |
310 | ||
311 | get_msg(fd_in, &msg); | |
312 | ||
2b87da3b | 313 | /* Expecting a VERSION reply */ |
61e96248 | 314 | if ((type = buffer_get_char(&msg)) != SSH2_FXP_VERSION) { |
9906a836 | 315 | error("Invalid packet back from SSH2_FXP_INIT (type %u)", |
61e96248 | 316 | type); |
317 | buffer_free(&msg); | |
22e6c827 | 318 | return(NULL); |
61e96248 | 319 | } |
320 | version = buffer_get_int(&msg); | |
321 | ||
322 | debug2("Remote version: %d", version); | |
323 | ||
324 | /* Check for extensions */ | |
325 | while (buffer_len(&msg) > 0) { | |
326 | char *name = buffer_get_string(&msg, NULL); | |
327 | char *value = buffer_get_string(&msg, NULL); | |
328 | ||
329 | debug2("Init extension: \"%s\"", name); | |
360b43ab | 330 | if (strcmp(name, "posix-rename@openssh.com") == 0 && |
331 | strcmp(value, "1") == 0) | |
530f04a8 | 332 | exts |= SFTP_EXT_POSIX_RENAME; |
360b43ab | 333 | if (strcmp(name, "statvfs@openssh.com") == 0 && |
4f36159a | 334 | strcmp(value, "2") == 0) |
360b43ab | 335 | exts |= SFTP_EXT_STATVFS; |
336 | if (strcmp(name, "fstatvfs@openssh.com") == 0 && | |
4f36159a | 337 | strcmp(value, "2") == 0) |
360b43ab | 338 | exts |= SFTP_EXT_FSTATVFS; |
61e96248 | 339 | xfree(name); |
340 | xfree(value); | |
341 | } | |
342 | ||
343 | buffer_free(&msg); | |
3a7fe5ba | 344 | |
22e6c827 | 345 | ret = xmalloc(sizeof(*ret)); |
346 | ret->fd_in = fd_in; | |
347 | ret->fd_out = fd_out; | |
348 | ret->transfer_buflen = transfer_buflen; | |
349 | ret->num_requests = num_requests; | |
350 | ret->version = version; | |
351 | ret->msg_id = 1; | |
530f04a8 | 352 | ret->exts = exts; |
22e6c827 | 353 | |
354 | /* Some filexfer v.0 servers don't support large packets */ | |
355 | if (version == 0) | |
92053302 | 356 | ret->transfer_buflen = MIN(ret->transfer_buflen, 20480); |
22e6c827 | 357 | |
358 | return(ret); | |
359 | } | |
360 | ||
361 | u_int | |
362 | sftp_proto_version(struct sftp_conn *conn) | |
363 | { | |
364 | return(conn->version); | |
61e96248 | 365 | } |
366 | ||
367 | int | |
22e6c827 | 368 | do_close(struct sftp_conn *conn, char *handle, u_int handle_len) |
61e96248 | 369 | { |
370 | u_int id, status; | |
371 | Buffer msg; | |
372 | ||
373 | buffer_init(&msg); | |
374 | ||
22e6c827 | 375 | id = conn->msg_id++; |
61e96248 | 376 | buffer_put_char(&msg, SSH2_FXP_CLOSE); |
377 | buffer_put_int(&msg, id); | |
378 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 379 | send_msg(conn->fd_out, &msg); |
9906a836 | 380 | debug3("Sent message SSH2_FXP_CLOSE I:%u", id); |
61e96248 | 381 | |
22e6c827 | 382 | status = get_status(conn->fd_in, id); |
61e96248 | 383 | if (status != SSH2_FX_OK) |
384 | error("Couldn't close file: %s", fx2txt(status)); | |
385 | ||
386 | buffer_free(&msg); | |
387 | ||
388 | return(status); | |
389 | } | |
390 | ||
2e4fb373 | 391 | |
396c147e | 392 | static int |
22e6c827 | 393 | do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, |
2e4fb373 | 394 | SFTP_DIRENT ***dir) |
61e96248 | 395 | { |
396 | Buffer msg; | |
2ceb8101 | 397 | u_int count, type, id, handle_len, i, expected_id, ents = 0; |
61e96248 | 398 | char *handle; |
399 | ||
22e6c827 | 400 | id = conn->msg_id++; |
61e96248 | 401 | |
402 | buffer_init(&msg); | |
403 | buffer_put_char(&msg, SSH2_FXP_OPENDIR); | |
404 | buffer_put_int(&msg, id); | |
405 | buffer_put_cstring(&msg, path); | |
22e6c827 | 406 | send_msg(conn->fd_out, &msg); |
61e96248 | 407 | |
408 | buffer_clear(&msg); | |
409 | ||
22e6c827 | 410 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 411 | if (handle == NULL) |
412 | return(-1); | |
413 | ||
2e4fb373 | 414 | if (dir) { |
415 | ents = 0; | |
416 | *dir = xmalloc(sizeof(**dir)); | |
417 | (*dir)[0] = NULL; | |
418 | } | |
2e4fb373 | 419 | |
0e5de6f8 | 420 | for (; !interrupted;) { |
22e6c827 | 421 | id = expected_id = conn->msg_id++; |
61e96248 | 422 | |
9906a836 | 423 | debug3("Sending SSH2_FXP_READDIR I:%u", id); |
61e96248 | 424 | |
425 | buffer_clear(&msg); | |
426 | buffer_put_char(&msg, SSH2_FXP_READDIR); | |
427 | buffer_put_int(&msg, id); | |
428 | buffer_put_string(&msg, handle, handle_len); | |
22e6c827 | 429 | send_msg(conn->fd_out, &msg); |
61e96248 | 430 | |
431 | buffer_clear(&msg); | |
432 | ||
22e6c827 | 433 | get_msg(conn->fd_in, &msg); |
61e96248 | 434 | |
435 | type = buffer_get_char(&msg); | |
436 | id = buffer_get_int(&msg); | |
437 | ||
9906a836 | 438 | debug3("Received reply T:%u I:%u", type, id); |
61e96248 | 439 | |
440 | if (id != expected_id) | |
9906a836 | 441 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 442 | |
443 | if (type == SSH2_FXP_STATUS) { | |
444 | int status = buffer_get_int(&msg); | |
445 | ||
446 | debug3("Received SSH2_FXP_STATUS %d", status); | |
447 | ||
448 | if (status == SSH2_FX_EOF) { | |
449 | break; | |
450 | } else { | |
451 | error("Couldn't read directory: %s", | |
452 | fx2txt(status)); | |
22e6c827 | 453 | do_close(conn, handle, handle_len); |
3e2f2431 | 454 | xfree(handle); |
b655a207 | 455 | return(status); |
61e96248 | 456 | } |
457 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 458 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 459 | SSH2_FXP_NAME, type); |
460 | ||
461 | count = buffer_get_int(&msg); | |
0426a3b4 | 462 | if (count == 0) |
463 | break; | |
464 | debug3("Received %d SSH2_FXP_NAME responses", count); | |
184eed6a | 465 | for (i = 0; i < count; i++) { |
61e96248 | 466 | char *filename, *longname; |
467 | Attrib *a; | |
468 | ||
469 | filename = buffer_get_string(&msg, NULL); | |
470 | longname = buffer_get_string(&msg, NULL); | |
471 | a = decode_attrib(&msg); | |
472 | ||
2e4fb373 | 473 | if (printflag) |
474 | printf("%s\n", longname); | |
475 | ||
476 | if (dir) { | |
c5d10563 | 477 | *dir = xrealloc(*dir, ents + 2, sizeof(**dir)); |
2e4fb373 | 478 | (*dir)[ents] = xmalloc(sizeof(***dir)); |
479 | (*dir)[ents]->filename = xstrdup(filename); | |
480 | (*dir)[ents]->longname = xstrdup(longname); | |
481 | memcpy(&(*dir)[ents]->a, a, sizeof(*a)); | |
482 | (*dir)[++ents] = NULL; | |
483 | } | |
61e96248 | 484 | |
485 | xfree(filename); | |
486 | xfree(longname); | |
487 | } | |
488 | } | |
489 | ||
490 | buffer_free(&msg); | |
22e6c827 | 491 | do_close(conn, handle, handle_len); |
61e96248 | 492 | xfree(handle); |
493 | ||
0e5de6f8 | 494 | /* Don't return partial matches on interrupt */ |
495 | if (interrupted && dir != NULL && *dir != NULL) { | |
496 | free_sftp_dirents(*dir); | |
497 | *dir = xmalloc(sizeof(**dir)); | |
498 | **dir = NULL; | |
499 | } | |
500 | ||
61e96248 | 501 | return(0); |
502 | } | |
503 | ||
2e4fb373 | 504 | int |
22e6c827 | 505 | do_readdir(struct sftp_conn *conn, char *path, SFTP_DIRENT ***dir) |
2e4fb373 | 506 | { |
22e6c827 | 507 | return(do_lsreaddir(conn, path, 0, dir)); |
2e4fb373 | 508 | } |
509 | ||
510 | void free_sftp_dirents(SFTP_DIRENT **s) | |
511 | { | |
512 | int i; | |
184eed6a | 513 | |
514 | for (i = 0; s[i]; i++) { | |
2e4fb373 | 515 | xfree(s[i]->filename); |
516 | xfree(s[i]->longname); | |
517 | xfree(s[i]); | |
518 | } | |
519 | xfree(s); | |
520 | } | |
521 | ||
61e96248 | 522 | int |
22e6c827 | 523 | do_rm(struct sftp_conn *conn, char *path) |
61e96248 | 524 | { |
525 | u_int status, id; | |
526 | ||
527 | debug2("Sending SSH2_FXP_REMOVE \"%s\"", path); | |
528 | ||
22e6c827 | 529 | id = conn->msg_id++; |
762715ce | 530 | send_string_request(conn->fd_out, id, SSH2_FXP_REMOVE, path, |
22e6c827 | 531 | strlen(path)); |
532 | status = get_status(conn->fd_in, id); | |
61e96248 | 533 | if (status != SSH2_FX_OK) |
534 | error("Couldn't delete file: %s", fx2txt(status)); | |
535 | return(status); | |
536 | } | |
537 | ||
538 | int | |
22e6c827 | 539 | do_mkdir(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 540 | { |
541 | u_int status, id; | |
542 | ||
22e6c827 | 543 | id = conn->msg_id++; |
544 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_MKDIR, path, | |
61e96248 | 545 | strlen(path), a); |
546 | ||
22e6c827 | 547 | status = get_status(conn->fd_in, id); |
61e96248 | 548 | if (status != SSH2_FX_OK) |
549 | error("Couldn't create directory: %s", fx2txt(status)); | |
550 | ||
551 | return(status); | |
552 | } | |
553 | ||
554 | int | |
22e6c827 | 555 | do_rmdir(struct sftp_conn *conn, char *path) |
61e96248 | 556 | { |
557 | u_int status, id; | |
558 | ||
22e6c827 | 559 | id = conn->msg_id++; |
560 | send_string_request(conn->fd_out, id, SSH2_FXP_RMDIR, path, | |
561 | strlen(path)); | |
61e96248 | 562 | |
22e6c827 | 563 | status = get_status(conn->fd_in, id); |
61e96248 | 564 | if (status != SSH2_FX_OK) |
565 | error("Couldn't remove directory: %s", fx2txt(status)); | |
566 | ||
567 | return(status); | |
568 | } | |
569 | ||
570 | Attrib * | |
22e6c827 | 571 | do_stat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 572 | { |
573 | u_int id; | |
574 | ||
22e6c827 | 575 | id = conn->msg_id++; |
576 | ||
762715ce | 577 | send_string_request(conn->fd_out, id, |
578 | conn->version == 0 ? SSH2_FXP_STAT_VERSION_0 : SSH2_FXP_STAT, | |
22e6c827 | 579 | path, strlen(path)); |
580 | ||
581 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 582 | } |
583 | ||
584 | Attrib * | |
22e6c827 | 585 | do_lstat(struct sftp_conn *conn, char *path, int quiet) |
61e96248 | 586 | { |
587 | u_int id; | |
588 | ||
22e6c827 | 589 | if (conn->version == 0) { |
590 | if (quiet) | |
591 | debug("Server version does not support lstat operation"); | |
592 | else | |
bbe88b6d | 593 | logit("Server version does not support lstat operation"); |
9c74a24d | 594 | return(do_stat(conn, path, quiet)); |
22e6c827 | 595 | } |
596 | ||
597 | id = conn->msg_id++; | |
598 | send_string_request(conn->fd_out, id, SSH2_FXP_LSTAT, path, | |
599 | strlen(path)); | |
600 | ||
601 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 602 | } |
603 | ||
737cce6f | 604 | #ifdef notyet |
61e96248 | 605 | Attrib * |
22e6c827 | 606 | do_fstat(struct sftp_conn *conn, char *handle, u_int handle_len, int quiet) |
61e96248 | 607 | { |
608 | u_int id; | |
609 | ||
22e6c827 | 610 | id = conn->msg_id++; |
611 | send_string_request(conn->fd_out, id, SSH2_FXP_FSTAT, handle, | |
612 | handle_len); | |
613 | ||
614 | return(get_decode_stat(conn->fd_in, id, quiet)); | |
61e96248 | 615 | } |
737cce6f | 616 | #endif |
61e96248 | 617 | |
618 | int | |
22e6c827 | 619 | do_setstat(struct sftp_conn *conn, char *path, Attrib *a) |
61e96248 | 620 | { |
621 | u_int status, id; | |
622 | ||
22e6c827 | 623 | id = conn->msg_id++; |
624 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_SETSTAT, path, | |
61e96248 | 625 | strlen(path), a); |
626 | ||
22e6c827 | 627 | status = get_status(conn->fd_in, id); |
61e96248 | 628 | if (status != SSH2_FX_OK) |
629 | error("Couldn't setstat on \"%s\": %s", path, | |
630 | fx2txt(status)); | |
631 | ||
632 | return(status); | |
633 | } | |
634 | ||
635 | int | |
22e6c827 | 636 | do_fsetstat(struct sftp_conn *conn, char *handle, u_int handle_len, |
61e96248 | 637 | Attrib *a) |
638 | { | |
639 | u_int status, id; | |
640 | ||
22e6c827 | 641 | id = conn->msg_id++; |
642 | send_string_attrs_request(conn->fd_out, id, SSH2_FXP_FSETSTAT, handle, | |
61e96248 | 643 | handle_len, a); |
644 | ||
22e6c827 | 645 | status = get_status(conn->fd_in, id); |
61e96248 | 646 | if (status != SSH2_FX_OK) |
647 | error("Couldn't fsetstat: %s", fx2txt(status)); | |
648 | ||
649 | return(status); | |
650 | } | |
651 | ||
652 | char * | |
22e6c827 | 653 | do_realpath(struct sftp_conn *conn, char *path) |
61e96248 | 654 | { |
655 | Buffer msg; | |
656 | u_int type, expected_id, count, id; | |
657 | char *filename, *longname; | |
658 | Attrib *a; | |
659 | ||
22e6c827 | 660 | expected_id = id = conn->msg_id++; |
661 | send_string_request(conn->fd_out, id, SSH2_FXP_REALPATH, path, | |
662 | strlen(path)); | |
61e96248 | 663 | |
664 | buffer_init(&msg); | |
665 | ||
22e6c827 | 666 | get_msg(conn->fd_in, &msg); |
61e96248 | 667 | type = buffer_get_char(&msg); |
668 | id = buffer_get_int(&msg); | |
669 | ||
670 | if (id != expected_id) | |
9906a836 | 671 | fatal("ID mismatch (%u != %u)", id, expected_id); |
61e96248 | 672 | |
673 | if (type == SSH2_FXP_STATUS) { | |
674 | u_int status = buffer_get_int(&msg); | |
675 | ||
676 | error("Couldn't canonicalise: %s", fx2txt(status)); | |
677 | return(NULL); | |
678 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 679 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
61e96248 | 680 | SSH2_FXP_NAME, type); |
681 | ||
682 | count = buffer_get_int(&msg); | |
683 | if (count != 1) | |
684 | fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count); | |
685 | ||
686 | filename = buffer_get_string(&msg, NULL); | |
687 | longname = buffer_get_string(&msg, NULL); | |
688 | a = decode_attrib(&msg); | |
689 | ||
690 | debug3("SSH_FXP_REALPATH %s -> %s", path, filename); | |
691 | ||
692 | xfree(longname); | |
693 | ||
694 | buffer_free(&msg); | |
695 | ||
696 | return(filename); | |
697 | } | |
698 | ||
699 | int | |
22e6c827 | 700 | do_rename(struct sftp_conn *conn, char *oldpath, char *newpath) |
61e96248 | 701 | { |
702 | Buffer msg; | |
703 | u_int status, id; | |
704 | ||
705 | buffer_init(&msg); | |
706 | ||
707 | /* Send rename request */ | |
22e6c827 | 708 | id = conn->msg_id++; |
530f04a8 | 709 | if ((conn->exts & SFTP_EXT_POSIX_RENAME)) { |
710 | buffer_put_char(&msg, SSH2_FXP_EXTENDED); | |
711 | buffer_put_int(&msg, id); | |
712 | buffer_put_cstring(&msg, "posix-rename@openssh.com"); | |
713 | } else { | |
714 | buffer_put_char(&msg, SSH2_FXP_RENAME); | |
715 | buffer_put_int(&msg, id); | |
716 | } | |
61e96248 | 717 | buffer_put_cstring(&msg, oldpath); |
718 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 719 | send_msg(conn->fd_out, &msg); |
530f04a8 | 720 | debug3("Sent message %s \"%s\" -> \"%s\"", |
721 | (conn->exts & SFTP_EXT_POSIX_RENAME) ? "posix-rename@openssh.com" : | |
722 | "SSH2_FXP_RENAME", oldpath, newpath); | |
61e96248 | 723 | buffer_free(&msg); |
724 | ||
22e6c827 | 725 | status = get_status(conn->fd_in, id); |
61e96248 | 726 | if (status != SSH2_FX_OK) |
22e6c827 | 727 | error("Couldn't rename file \"%s\" to \"%s\": %s", oldpath, |
728 | newpath, fx2txt(status)); | |
61e96248 | 729 | |
730 | return(status); | |
731 | } | |
732 | ||
3a7fe5ba | 733 | int |
22e6c827 | 734 | do_symlink(struct sftp_conn *conn, char *oldpath, char *newpath) |
3a7fe5ba | 735 | { |
736 | Buffer msg; | |
737 | u_int status, id; | |
738 | ||
22e6c827 | 739 | if (conn->version < 3) { |
740 | error("This server does not support the symlink operation"); | |
741 | return(SSH2_FX_OP_UNSUPPORTED); | |
742 | } | |
743 | ||
3a7fe5ba | 744 | buffer_init(&msg); |
745 | ||
b093b499 | 746 | /* Send symlink request */ |
22e6c827 | 747 | id = conn->msg_id++; |
3a7fe5ba | 748 | buffer_put_char(&msg, SSH2_FXP_SYMLINK); |
749 | buffer_put_int(&msg, id); | |
750 | buffer_put_cstring(&msg, oldpath); | |
751 | buffer_put_cstring(&msg, newpath); | |
22e6c827 | 752 | send_msg(conn->fd_out, &msg); |
3a7fe5ba | 753 | debug3("Sent message SSH2_FXP_SYMLINK \"%s\" -> \"%s\"", oldpath, |
754 | newpath); | |
755 | buffer_free(&msg); | |
756 | ||
22e6c827 | 757 | status = get_status(conn->fd_in, id); |
3a7fe5ba | 758 | if (status != SSH2_FX_OK) |
9db1a8e9 | 759 | error("Couldn't symlink file \"%s\" to \"%s\": %s", oldpath, |
22e6c827 | 760 | newpath, fx2txt(status)); |
3a7fe5ba | 761 | |
762 | return(status); | |
763 | } | |
764 | ||
737cce6f | 765 | #ifdef notyet |
3a7fe5ba | 766 | char * |
22e6c827 | 767 | do_readlink(struct sftp_conn *conn, char *path) |
3a7fe5ba | 768 | { |
769 | Buffer msg; | |
770 | u_int type, expected_id, count, id; | |
771 | char *filename, *longname; | |
772 | Attrib *a; | |
773 | ||
22e6c827 | 774 | expected_id = id = conn->msg_id++; |
775 | send_string_request(conn->fd_out, id, SSH2_FXP_READLINK, path, | |
776 | strlen(path)); | |
3a7fe5ba | 777 | |
778 | buffer_init(&msg); | |
779 | ||
22e6c827 | 780 | get_msg(conn->fd_in, &msg); |
3a7fe5ba | 781 | type = buffer_get_char(&msg); |
782 | id = buffer_get_int(&msg); | |
783 | ||
784 | if (id != expected_id) | |
9906a836 | 785 | fatal("ID mismatch (%u != %u)", id, expected_id); |
3a7fe5ba | 786 | |
787 | if (type == SSH2_FXP_STATUS) { | |
788 | u_int status = buffer_get_int(&msg); | |
789 | ||
790 | error("Couldn't readlink: %s", fx2txt(status)); | |
791 | return(NULL); | |
792 | } else if (type != SSH2_FXP_NAME) | |
9906a836 | 793 | fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", |
3a7fe5ba | 794 | SSH2_FXP_NAME, type); |
795 | ||
796 | count = buffer_get_int(&msg); | |
797 | if (count != 1) | |
798 | fatal("Got multiple names (%d) from SSH_FXP_READLINK", count); | |
799 | ||
800 | filename = buffer_get_string(&msg, NULL); | |
801 | longname = buffer_get_string(&msg, NULL); | |
802 | a = decode_attrib(&msg); | |
803 | ||
804 | debug3("SSH_FXP_READLINK %s -> %s", path, filename); | |
805 | ||
806 | xfree(longname); | |
807 | ||
808 | buffer_free(&msg); | |
809 | ||
810 | return(filename); | |
811 | } | |
737cce6f | 812 | #endif |
3a7fe5ba | 813 | |
360b43ab | 814 | int |
815 | do_statvfs(struct sftp_conn *conn, const char *path, struct statvfs *st, | |
816 | int quiet) | |
817 | { | |
818 | Buffer msg; | |
819 | u_int id; | |
820 | ||
821 | if ((conn->exts & SFTP_EXT_STATVFS) == 0) { | |
822 | error("Server does not support statvfs@openssh.com extension"); | |
823 | return -1; | |
824 | } | |
825 | ||
826 | id = conn->msg_id++; | |
827 | ||
828 | buffer_init(&msg); | |
829 | buffer_clear(&msg); | |
830 | buffer_put_char(&msg, SSH2_FXP_EXTENDED); | |
831 | buffer_put_int(&msg, id); | |
832 | buffer_put_cstring(&msg, "statvfs@openssh.com"); | |
833 | buffer_put_cstring(&msg, path); | |
834 | send_msg(conn->fd_out, &msg); | |
835 | buffer_free(&msg); | |
836 | ||
837 | return get_decode_statvfs(conn->fd_in, st, id, quiet); | |
838 | } | |
839 | ||
840 | #ifdef notyet | |
841 | int | |
842 | do_fstatvfs(struct sftp_conn *conn, const char *handle, u_int handle_len, | |
843 | struct statvfs *st, int quiet) | |
844 | { | |
845 | Buffer msg; | |
846 | u_int id; | |
847 | ||
848 | if ((conn->exts & SFTP_EXT_FSTATVFS) == 0) { | |
849 | error("Server does not support fstatvfs@openssh.com extension"); | |
850 | return -1; | |
851 | } | |
852 | ||
853 | id = conn->msg_id++; | |
854 | ||
855 | buffer_init(&msg); | |
856 | buffer_clear(&msg); | |
857 | buffer_put_char(&msg, SSH2_FXP_EXTENDED); | |
858 | buffer_put_int(&msg, id); | |
859 | buffer_put_cstring(&msg, "fstatvfs@openssh.com"); | |
860 | buffer_put_string(&msg, handle, handle_len); | |
861 | send_msg(conn->fd_out, &msg); | |
862 | buffer_free(&msg); | |
863 | ||
864 | return get_decode_statvfs(conn->fd_in, st, id, quiet); | |
865 | } | |
866 | #endif | |
867 | ||
c25d3df7 | 868 | static void |
869 | send_read_request(int fd_out, u_int id, u_int64_t offset, u_int len, | |
870 | char *handle, u_int handle_len) | |
871 | { | |
872 | Buffer msg; | |
762715ce | 873 | |
c25d3df7 | 874 | buffer_init(&msg); |
875 | buffer_clear(&msg); | |
876 | buffer_put_char(&msg, SSH2_FXP_READ); | |
877 | buffer_put_int(&msg, id); | |
878 | buffer_put_string(&msg, handle, handle_len); | |
879 | buffer_put_int64(&msg, offset); | |
880 | buffer_put_int(&msg, len); | |
881 | send_msg(fd_out, &msg); | |
882 | buffer_free(&msg); | |
762715ce | 883 | } |
c25d3df7 | 884 | |
61e96248 | 885 | int |
22e6c827 | 886 | do_download(struct sftp_conn *conn, char *remote_path, char *local_path, |
887 | int pflag) | |
61e96248 | 888 | { |
61e96248 | 889 | Attrib junk, *a; |
c25d3df7 | 890 | Buffer msg; |
891 | char *handle; | |
a056dfa2 | 892 | int local_fd, status = 0, write_error; |
c25d3df7 | 893 | int read_error, write_errno; |
894 | u_int64_t offset, size; | |
2ceb8101 | 895 | u_int handle_len, mode, type, id, buflen, num_req, max_req; |
b65c3807 | 896 | off_t progress_counter; |
c25d3df7 | 897 | struct request { |
898 | u_int id; | |
899 | u_int len; | |
900 | u_int64_t offset; | |
762715ce | 901 | TAILQ_ENTRY(request) tq; |
c25d3df7 | 902 | }; |
903 | TAILQ_HEAD(reqhead, request) requests; | |
904 | struct request *req; | |
905 | ||
906 | TAILQ_INIT(&requests); | |
61e96248 | 907 | |
22e6c827 | 908 | a = do_stat(conn, remote_path, 0); |
61e96248 | 909 | if (a == NULL) |
910 | return(-1); | |
911 | ||
912 | /* XXX: should we preserve set[ug]id? */ | |
913 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) | |
bfd934b9 | 914 | mode = a->perm & 0777; |
61e96248 | 915 | else |
916 | mode = 0666; | |
917 | ||
d50d9b63 | 918 | if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && |
538840a2 | 919 | (!S_ISREG(a->perm))) { |
920 | error("Cannot download non-regular file: %s", remote_path); | |
d50d9b63 | 921 | return(-1); |
922 | } | |
923 | ||
c25d3df7 | 924 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) |
925 | size = a->size; | |
926 | else | |
927 | size = 0; | |
928 | ||
22e6c827 | 929 | buflen = conn->transfer_buflen; |
61e96248 | 930 | buffer_init(&msg); |
931 | ||
932 | /* Send open request */ | |
22e6c827 | 933 | id = conn->msg_id++; |
61e96248 | 934 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
935 | buffer_put_int(&msg, id); | |
936 | buffer_put_cstring(&msg, remote_path); | |
937 | buffer_put_int(&msg, SSH2_FXF_READ); | |
938 | attrib_clear(&junk); /* Send empty attributes */ | |
939 | encode_attrib(&msg, &junk); | |
22e6c827 | 940 | send_msg(conn->fd_out, &msg); |
9906a836 | 941 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 942 | |
22e6c827 | 943 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 944 | if (handle == NULL) { |
945 | buffer_free(&msg); | |
61e96248 | 946 | return(-1); |
947 | } | |
948 | ||
aff51935 | 949 | local_fd = open(local_path, O_WRONLY | O_CREAT | O_TRUNC, |
bfd934b9 | 950 | mode | S_IWRITE); |
22e6c827 | 951 | if (local_fd == -1) { |
952 | error("Couldn't open local file \"%s\" for writing: %s", | |
953 | local_path, strerror(errno)); | |
1c861236 | 954 | do_close(conn, handle, handle_len); |
f60ace9f | 955 | buffer_free(&msg); |
956 | xfree(handle); | |
22e6c827 | 957 | return(-1); |
958 | } | |
959 | ||
61e96248 | 960 | /* Read from remote and write to local */ |
c25d3df7 | 961 | write_error = read_error = write_errno = num_req = offset = 0; |
962 | max_req = 1; | |
b65c3807 | 963 | progress_counter = 0; |
964 | ||
213bab61 | 965 | if (showprogress && size != 0) |
966 | start_progress_meter(remote_path, size, &progress_counter); | |
b65c3807 | 967 | |
c25d3df7 | 968 | while (num_req > 0 || max_req > 0) { |
61e96248 | 969 | char *data; |
c25d3df7 | 970 | u_int len; |
61e96248 | 971 | |
0e5de6f8 | 972 | /* |
f2107e97 | 973 | * Simulate EOF on interrupt: stop sending new requests and |
0e5de6f8 | 974 | * allow outstanding requests to drain gracefully |
975 | */ | |
976 | if (interrupted) { | |
977 | if (num_req == 0) /* If we haven't started yet... */ | |
978 | break; | |
979 | max_req = 0; | |
980 | } | |
981 | ||
c25d3df7 | 982 | /* Send some more requests */ |
983 | while (num_req < max_req) { | |
762715ce | 984 | debug3("Request range %llu -> %llu (%d/%d)", |
8627f3e0 | 985 | (unsigned long long)offset, |
986 | (unsigned long long)offset + buflen - 1, | |
987 | num_req, max_req); | |
c25d3df7 | 988 | req = xmalloc(sizeof(*req)); |
22e6c827 | 989 | req->id = conn->msg_id++; |
c25d3df7 | 990 | req->len = buflen; |
991 | req->offset = offset; | |
992 | offset += buflen; | |
993 | num_req++; | |
994 | TAILQ_INSERT_TAIL(&requests, req, tq); | |
762715ce | 995 | send_read_request(conn->fd_out, req->id, req->offset, |
c25d3df7 | 996 | req->len, handle, handle_len); |
997 | } | |
61e96248 | 998 | |
999 | buffer_clear(&msg); | |
22e6c827 | 1000 | get_msg(conn->fd_in, &msg); |
61e96248 | 1001 | type = buffer_get_char(&msg); |
1002 | id = buffer_get_int(&msg); | |
9906a836 | 1003 | debug3("Received reply T:%u I:%u R:%d", type, id, max_req); |
c25d3df7 | 1004 | |
1005 | /* Find the request in our queue */ | |
f8cc7664 | 1006 | for (req = TAILQ_FIRST(&requests); |
c25d3df7 | 1007 | req != NULL && req->id != id; |
1008 | req = TAILQ_NEXT(req, tq)) | |
1009 | ; | |
1010 | if (req == NULL) | |
1011 | fatal("Unexpected reply %u", id); | |
1012 | ||
1013 | switch (type) { | |
1014 | case SSH2_FXP_STATUS: | |
0426a3b4 | 1015 | status = buffer_get_int(&msg); |
c25d3df7 | 1016 | if (status != SSH2_FX_EOF) |
1017 | read_error = 1; | |
1018 | max_req = 0; | |
1019 | TAILQ_REMOVE(&requests, req, tq); | |
1020 | xfree(req); | |
1021 | num_req--; | |
1022 | break; | |
1023 | case SSH2_FXP_DATA: | |
1024 | data = buffer_get_string(&msg, &len); | |
bfa7f960 | 1025 | debug3("Received data %llu -> %llu", |
762715ce | 1026 | (unsigned long long)req->offset, |
bfa7f960 | 1027 | (unsigned long long)req->offset + len - 1); |
c25d3df7 | 1028 | if (len > req->len) |
1029 | fatal("Received more data than asked for " | |
b77a87e5 | 1030 | "%u > %u", len, req->len); |
c25d3df7 | 1031 | if ((lseek(local_fd, req->offset, SEEK_SET) == -1 || |
dc54438a | 1032 | atomicio(vwrite, local_fd, data, len) != len) && |
c25d3df7 | 1033 | !write_error) { |
1034 | write_errno = errno; | |
1035 | write_error = 1; | |
1036 | max_req = 0; | |
1037 | } | |
b65c3807 | 1038 | progress_counter += len; |
c25d3df7 | 1039 | xfree(data); |
61e96248 | 1040 | |
c25d3df7 | 1041 | if (len == req->len) { |
1042 | TAILQ_REMOVE(&requests, req, tq); | |
1043 | xfree(req); | |
1044 | num_req--; | |
1045 | } else { | |
1046 | /* Resend the request for the missing data */ | |
1047 | debug3("Short data block, re-requesting " | |
bfa7f960 | 1048 | "%llu -> %llu (%2d)", |
762715ce | 1049 | (unsigned long long)req->offset + len, |
5fc7dbc9 | 1050 | (unsigned long long)req->offset + |
1051 | req->len - 1, num_req); | |
22e6c827 | 1052 | req->id = conn->msg_id++; |
c25d3df7 | 1053 | req->len -= len; |
1054 | req->offset += len; | |
762715ce | 1055 | send_read_request(conn->fd_out, req->id, |
22e6c827 | 1056 | req->offset, req->len, handle, handle_len); |
c25d3df7 | 1057 | /* Reduce the request size */ |
1058 | if (len < buflen) | |
1059 | buflen = MAX(MIN_READ_SIZE, len); | |
1060 | } | |
1061 | if (max_req > 0) { /* max_req = 0 iff EOF received */ | |
1062 | if (size > 0 && offset > size) { | |
1063 | /* Only one request at a time | |
1064 | * after the expected EOF */ | |
1065 | debug3("Finish at %llu (%2d)", | |
bfa7f960 | 1066 | (unsigned long long)offset, |
1067 | num_req); | |
c25d3df7 | 1068 | max_req = 1; |
0e5de6f8 | 1069 | } else if (max_req <= conn->num_requests) { |
c25d3df7 | 1070 | ++max_req; |
1071 | } | |
61e96248 | 1072 | } |
c25d3df7 | 1073 | break; |
1074 | default: | |
9906a836 | 1075 | fatal("Expected SSH2_FXP_DATA(%u) packet, got %u", |
61e96248 | 1076 | SSH2_FXP_DATA, type); |
1077 | } | |
61e96248 | 1078 | } |
61e96248 | 1079 | |
b65c3807 | 1080 | if (showprogress && size) |
1081 | stop_progress_meter(); | |
1082 | ||
c25d3df7 | 1083 | /* Sanity check */ |
1084 | if (TAILQ_FIRST(&requests) != NULL) | |
1085 | fatal("Transfer complete, but requests still in queue"); | |
1086 | ||
1087 | if (read_error) { | |
762715ce | 1088 | error("Couldn't read from remote file \"%s\" : %s", |
22e6c827 | 1089 | remote_path, fx2txt(status)); |
1090 | do_close(conn, handle, handle_len); | |
c25d3df7 | 1091 | } else if (write_error) { |
22e6c827 | 1092 | error("Couldn't write to \"%s\": %s", local_path, |
1093 | strerror(write_errno)); | |
1094 | status = -1; | |
1095 | do_close(conn, handle, handle_len); | |
c25d3df7 | 1096 | } else { |
22e6c827 | 1097 | status = do_close(conn, handle, handle_len); |
c25d3df7 | 1098 | |
1099 | /* Override umask and utimes if asked */ | |
663fd560 | 1100 | #ifdef HAVE_FCHMOD |
c25d3df7 | 1101 | if (pflag && fchmod(local_fd, mode) == -1) |
aff51935 | 1102 | #else |
c25d3df7 | 1103 | if (pflag && chmod(local_path, mode) == -1) |
663fd560 | 1104 | #endif /* HAVE_FCHMOD */ |
c25d3df7 | 1105 | error("Couldn't set mode on \"%s\": %s", local_path, |
b77a87e5 | 1106 | strerror(errno)); |
c25d3df7 | 1107 | if (pflag && (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) { |
1108 | struct timeval tv[2]; | |
1109 | tv[0].tv_sec = a->atime; | |
1110 | tv[1].tv_sec = a->mtime; | |
1111 | tv[0].tv_usec = tv[1].tv_usec = 0; | |
1112 | if (utimes(local_path, tv) == -1) | |
1113 | error("Can't set times on \"%s\": %s", | |
b77a87e5 | 1114 | local_path, strerror(errno)); |
c25d3df7 | 1115 | } |
58c54a79 | 1116 | } |
0426a3b4 | 1117 | close(local_fd); |
1118 | buffer_free(&msg); | |
1119 | xfree(handle); | |
22e6c827 | 1120 | |
1121 | return(status); | |
61e96248 | 1122 | } |
1123 | ||
1124 | int | |
22e6c827 | 1125 | do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, |
1126 | int pflag) | |
61e96248 | 1127 | { |
514a858e | 1128 | int local_fd; |
1129 | int status = SSH2_FX_OK; | |
b2bab059 | 1130 | u_int handle_len, id, type; |
9e7f4c4f | 1131 | off_t offset; |
375f867e | 1132 | char *handle, *data; |
61e96248 | 1133 | Buffer msg; |
1134 | struct stat sb; | |
1135 | Attrib a; | |
c25d3df7 | 1136 | u_int32_t startid; |
1137 | u_int32_t ackid; | |
b2bab059 | 1138 | struct outstanding_ack { |
1139 | u_int id; | |
1140 | u_int len; | |
9e7f4c4f | 1141 | off_t offset; |
762715ce | 1142 | TAILQ_ENTRY(outstanding_ack) tq; |
b2bab059 | 1143 | }; |
1144 | TAILQ_HEAD(ackhead, outstanding_ack) acks; | |
6e007f08 | 1145 | struct outstanding_ack *ack = NULL; |
b2bab059 | 1146 | |
1147 | TAILQ_INIT(&acks); | |
61e96248 | 1148 | |
1149 | if ((local_fd = open(local_path, O_RDONLY, 0)) == -1) { | |
1150 | error("Couldn't open local file \"%s\" for reading: %s", | |
1151 | local_path, strerror(errno)); | |
1152 | return(-1); | |
1153 | } | |
1154 | if (fstat(local_fd, &sb) == -1) { | |
1155 | error("Couldn't fstat local file \"%s\": %s", | |
1156 | local_path, strerror(errno)); | |
1157 | close(local_fd); | |
1158 | return(-1); | |
1159 | } | |
538840a2 | 1160 | if (!S_ISREG(sb.st_mode)) { |
1161 | error("%s is not a regular file", local_path); | |
1162 | close(local_fd); | |
1163 | return(-1); | |
1164 | } | |
61e96248 | 1165 | stat_to_attrib(&sb, &a); |
1166 | ||
1167 | a.flags &= ~SSH2_FILEXFER_ATTR_SIZE; | |
1168 | a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID; | |
1169 | a.perm &= 0777; | |
1170 | if (!pflag) | |
1171 | a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME; | |
1172 | ||
1173 | buffer_init(&msg); | |
1174 | ||
1175 | /* Send open request */ | |
22e6c827 | 1176 | id = conn->msg_id++; |
61e96248 | 1177 | buffer_put_char(&msg, SSH2_FXP_OPEN); |
1178 | buffer_put_int(&msg, id); | |
1179 | buffer_put_cstring(&msg, remote_path); | |
1180 | buffer_put_int(&msg, SSH2_FXF_WRITE|SSH2_FXF_CREAT|SSH2_FXF_TRUNC); | |
1181 | encode_attrib(&msg, &a); | |
22e6c827 | 1182 | send_msg(conn->fd_out, &msg); |
9906a836 | 1183 | debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path); |
61e96248 | 1184 | |
1185 | buffer_clear(&msg); | |
1186 | ||
22e6c827 | 1187 | handle = get_handle(conn->fd_in, id, &handle_len); |
61e96248 | 1188 | if (handle == NULL) { |
1189 | close(local_fd); | |
1190 | buffer_free(&msg); | |
514a858e | 1191 | return -1; |
61e96248 | 1192 | } |
1193 | ||
c25d3df7 | 1194 | startid = ackid = id + 1; |
22e6c827 | 1195 | data = xmalloc(conn->transfer_buflen); |
375f867e | 1196 | |
61e96248 | 1197 | /* Read from local and write to remote */ |
1198 | offset = 0; | |
b65c3807 | 1199 | if (showprogress) |
1200 | start_progress_meter(local_path, sb.st_size, &offset); | |
b65c3807 | 1201 | |
184eed6a | 1202 | for (;;) { |
61e96248 | 1203 | int len; |
61e96248 | 1204 | |
1205 | /* | |
f2107e97 | 1206 | * Can't use atomicio here because it returns 0 on EOF, |
0e5de6f8 | 1207 | * thus losing the last block of the file. |
f2107e97 | 1208 | * Simulate an EOF on interrupt, allowing ACKs from the |
0e5de6f8 | 1209 | * server to drain. |
61e96248 | 1210 | */ |
514a858e | 1211 | if (interrupted || status != SSH2_FX_OK) |
0e5de6f8 | 1212 | len = 0; |
1213 | else do | |
22e6c827 | 1214 | len = read(local_fd, data, conn->transfer_buflen); |
61e96248 | 1215 | while ((len == -1) && (errno == EINTR || errno == EAGAIN)); |
1216 | ||
1217 | if (len == -1) | |
1218 | fatal("Couldn't read from \"%s\": %s", local_path, | |
1219 | strerror(errno)); | |
c25d3df7 | 1220 | |
1221 | if (len != 0) { | |
b2bab059 | 1222 | ack = xmalloc(sizeof(*ack)); |
1223 | ack->id = ++id; | |
1224 | ack->offset = offset; | |
1225 | ack->len = len; | |
1226 | TAILQ_INSERT_TAIL(&acks, ack, tq); | |
1227 | ||
c25d3df7 | 1228 | buffer_clear(&msg); |
1229 | buffer_put_char(&msg, SSH2_FXP_WRITE); | |
b2bab059 | 1230 | buffer_put_int(&msg, ack->id); |
c25d3df7 | 1231 | buffer_put_string(&msg, handle, handle_len); |
1232 | buffer_put_int64(&msg, offset); | |
1233 | buffer_put_string(&msg, data, len); | |
22e6c827 | 1234 | send_msg(conn->fd_out, &msg); |
9906a836 | 1235 | debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%u", |
b77a87e5 | 1236 | id, (unsigned long long)offset, len); |
b2bab059 | 1237 | } else if (TAILQ_FIRST(&acks) == NULL) |
61e96248 | 1238 | break; |
1239 | ||
b2bab059 | 1240 | if (ack == NULL) |
1241 | fatal("Unexpected ACK %u", id); | |
1242 | ||
762715ce | 1243 | if (id == startid || len == 0 || |
22e6c827 | 1244 | id - ackid >= conn->num_requests) { |
875ec275 | 1245 | u_int r_id; |
af2b3cd9 | 1246 | |
b2bab059 | 1247 | buffer_clear(&msg); |
22e6c827 | 1248 | get_msg(conn->fd_in, &msg); |
b2bab059 | 1249 | type = buffer_get_char(&msg); |
af2b3cd9 | 1250 | r_id = buffer_get_int(&msg); |
b2bab059 | 1251 | |
1252 | if (type != SSH2_FXP_STATUS) | |
1253 | fatal("Expected SSH2_FXP_STATUS(%d) packet, " | |
1254 | "got %d", SSH2_FXP_STATUS, type); | |
1255 | ||
1256 | status = buffer_get_int(&msg); | |
1257 | debug3("SSH2_FXP_STATUS %d", status); | |
1258 | ||
1259 | /* Find the request in our queue */ | |
f8cc7664 | 1260 | for (ack = TAILQ_FIRST(&acks); |
af2b3cd9 | 1261 | ack != NULL && ack->id != r_id; |
b2bab059 | 1262 | ack = TAILQ_NEXT(ack, tq)) |
1263 | ; | |
1264 | if (ack == NULL) | |
9906a836 | 1265 | fatal("Can't find request for ID %u", r_id); |
b2bab059 | 1266 | TAILQ_REMOVE(&acks, ack, tq); |
9e7f4c4f | 1267 | debug3("In write loop, ack for %u %u bytes at %lld", |
1268 | ack->id, ack->len, (long long)ack->offset); | |
c25d3df7 | 1269 | ++ackid; |
30e37ee6 | 1270 | xfree(ack); |
61e96248 | 1271 | } |
61e96248 | 1272 | offset += len; |
9e7f4c4f | 1273 | if (offset < 0) |
1274 | fatal("%s: offset < 0", __func__); | |
61e96248 | 1275 | } |
514a858e | 1276 | buffer_free(&msg); |
1277 | ||
b65c3807 | 1278 | if (showprogress) |
1279 | stop_progress_meter(); | |
375f867e | 1280 | xfree(data); |
61e96248 | 1281 | |
514a858e | 1282 | if (status != SSH2_FX_OK) { |
1283 | error("Couldn't write to remote file \"%s\": %s", | |
1284 | remote_path, fx2txt(status)); | |
1285 | status = -1; | |
1286 | } | |
1287 | ||
61e96248 | 1288 | if (close(local_fd) == -1) { |
1289 | error("Couldn't close local file \"%s\": %s", local_path, | |
1290 | strerror(errno)); | |
0426a3b4 | 1291 | status = -1; |
61e96248 | 1292 | } |
1293 | ||
58c54a79 | 1294 | /* Override umask and utimes if asked */ |
1295 | if (pflag) | |
22e6c827 | 1296 | do_fsetstat(conn, handle, handle_len, &a); |
58c54a79 | 1297 | |
514a858e | 1298 | if (do_close(conn, handle, handle_len) != SSH2_FX_OK) |
1299 | status = -1; | |
0426a3b4 | 1300 | xfree(handle); |
514a858e | 1301 | |
1302 | return status; | |
61e96248 | 1303 | } |