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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
3d7415f4 LP |
2 | |
3 | #include <sys/prctl.h> | |
d7e454ba | 4 | #include <sys/wait.h> |
3d7415f4 LP |
5 | |
6 | #include "sd-bus.h" | |
3ffd4af2 | 7 | |
b5efdb8a | 8 | #include "alloc-util.h" |
3d7415f4 | 9 | #include "bus-common-errors.h" |
40af3d02 | 10 | #include "bus-get-properties.h" |
ac9f55ed | 11 | #include "bus-log-control-api.h" |
269e4d2d | 12 | #include "bus-polkit.h" |
28db6fbf | 13 | #include "constants.h" |
d7548908 | 14 | #include "env-util.h" |
3ffd4af2 | 15 | #include "fd-util.h" |
1d7579c4 | 16 | #include "float.h" |
3ffd4af2 LP |
17 | #include "hostname-util.h" |
18 | #include "import-util.h" | |
432cea00 | 19 | #include "machine-pool.h" |
5e332028 | 20 | #include "main-func.h" |
f5947a5e | 21 | #include "missing_capability.h" |
35cd0ba5 | 22 | #include "mkdir-label.h" |
6bedfcbb | 23 | #include "parse-util.h" |
113b3fc1 | 24 | #include "path-util.h" |
ed5033fd | 25 | #include "percent-util.h" |
0b452006 | 26 | #include "process-util.h" |
fc021a5b | 27 | #include "service-util.h" |
40af3d02 | 28 | #include "signal-util.h" |
3ffd4af2 | 29 | #include "socket-util.h" |
176a05c2 | 30 | #include "stat-util.h" |
8b43440b | 31 | #include "string-table.h" |
3ffd4af2 | 32 | #include "strv.h" |
7ccbd1ae | 33 | #include "syslog-util.h" |
ee104e11 | 34 | #include "user-util.h" |
49cf4170 | 35 | #include "web-util.h" |
3d7415f4 LP |
36 | |
37 | typedef struct Transfer Transfer; | |
38 | typedef struct Manager Manager; | |
39 | ||
40 | typedef enum TransferType { | |
b6e676ce LP |
41 | TRANSFER_IMPORT_TAR, |
42 | TRANSFER_IMPORT_RAW, | |
1d7579c4 | 43 | TRANSFER_IMPORT_FS, |
587fec42 LP |
44 | TRANSFER_EXPORT_TAR, |
45 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
46 | TRANSFER_PULL_TAR, |
47 | TRANSFER_PULL_RAW, | |
3d7415f4 | 48 | _TRANSFER_TYPE_MAX, |
2d93c20e | 49 | _TRANSFER_TYPE_INVALID = -EINVAL, |
3d7415f4 LP |
50 | } TransferType; |
51 | ||
52 | struct Transfer { | |
53 | Manager *manager; | |
54 | ||
55 | uint32_t id; | |
56 | char *object_path; | |
57 | ||
58 | TransferType type; | |
59 | ImportVerify verify; | |
60 | ||
61 | char *remote; | |
62 | char *local; | |
63 | bool force_local; | |
b6e676ce | 64 | bool read_only; |
3d7415f4 | 65 | |
587fec42 | 66 | char *format; |
3d7415f4 LP |
67 | |
68 | pid_t pid; | |
69 | ||
70 | int log_fd; | |
71 | ||
72 | char log_message[LINE_MAX]; | |
73 | size_t log_message_size; | |
74 | ||
75 | sd_event_source *pid_event_source; | |
76 | sd_event_source *log_event_source; | |
77 | ||
78 | unsigned n_canceled; | |
7079cfef | 79 | unsigned progress_percent; |
b6e676ce LP |
80 | |
81 | int stdin_fd; | |
587fec42 | 82 | int stdout_fd; |
3d7415f4 LP |
83 | }; |
84 | ||
85 | struct Manager { | |
86 | sd_event *event; | |
87 | sd_bus *bus; | |
88 | ||
89 | uint32_t current_transfer_id; | |
90 | Hashmap *transfers; | |
91 | ||
92 | Hashmap *polkit_registry; | |
7079cfef LP |
93 | |
94 | int notify_fd; | |
95 | ||
96 | sd_event_source *notify_event_source; | |
c7779a61 IS |
97 | |
98 | bool use_btrfs_subvol; | |
99 | bool use_btrfs_quota; | |
3d7415f4 LP |
100 | }; |
101 | ||
102 | #define TRANSFERS_MAX 64 | |
103 | ||
104 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
105 | [TRANSFER_IMPORT_TAR] = "import-tar", |
106 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
1d7579c4 | 107 | [TRANSFER_IMPORT_FS] = "import-fs", |
587fec42 LP |
108 | [TRANSFER_EXPORT_TAR] = "export-tar", |
109 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b6e676ce LP |
110 | [TRANSFER_PULL_TAR] = "pull-tar", |
111 | [TRANSFER_PULL_RAW] = "pull-raw", | |
3d7415f4 LP |
112 | }; |
113 | ||
b9a5f858 | 114 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
115 | |
116 | static Transfer *transfer_unref(Transfer *t) { | |
117 | if (!t) | |
118 | return NULL; | |
119 | ||
120 | if (t->manager) | |
121 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
122 | ||
123 | sd_event_source_unref(t->pid_event_source); | |
124 | sd_event_source_unref(t->log_event_source); | |
125 | ||
126 | free(t->remote); | |
127 | free(t->local); | |
587fec42 | 128 | free(t->format); |
3d7415f4 LP |
129 | free(t->object_path); |
130 | ||
7950211d LP |
131 | if (t->pid > 1) |
132 | sigkill_wait(t->pid); | |
3d7415f4 LP |
133 | |
134 | safe_close(t->log_fd); | |
b6e676ce | 135 | safe_close(t->stdin_fd); |
587fec42 | 136 | safe_close(t->stdout_fd); |
3d7415f4 | 137 | |
6b430fdb | 138 | return mfree(t); |
3d7415f4 LP |
139 | } |
140 | ||
141 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
142 | ||
143 | static int transfer_new(Manager *m, Transfer **ret) { | |
144 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
145 | uint32_t id; | |
146 | int r; | |
147 | ||
148 | assert(m); | |
149 | assert(ret); | |
150 | ||
151 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
152 | return -E2BIG; | |
153 | ||
0d94088e | 154 | t = new(Transfer, 1); |
3d7415f4 LP |
155 | if (!t) |
156 | return -ENOMEM; | |
157 | ||
0d94088e YW |
158 | *t = (Transfer) { |
159 | .type = _TRANSFER_TYPE_INVALID, | |
254d1313 ZJS |
160 | .log_fd = -EBADF, |
161 | .stdin_fd = -EBADF, | |
162 | .stdout_fd = -EBADF, | |
0d94088e | 163 | .verify = _IMPORT_VERIFY_INVALID, |
f5fbe71d | 164 | .progress_percent= UINT_MAX, |
0d94088e | 165 | }; |
3d7415f4 LP |
166 | |
167 | id = m->current_transfer_id + 1; | |
168 | ||
169 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
170 | return -ENOMEM; | |
171 | ||
df24a407 | 172 | r = hashmap_ensure_put(&m->transfers, &trivial_hash_ops, UINT32_TO_PTR(id), t); |
3d7415f4 LP |
173 | if (r < 0) |
174 | return r; | |
175 | ||
176 | m->current_transfer_id = id; | |
177 | ||
178 | t->manager = m; | |
179 | t->id = id; | |
180 | ||
1cc6c93a | 181 | *ret = TAKE_PTR(t); |
3d7415f4 LP |
182 | |
183 | return 0; | |
184 | } | |
185 | ||
1d7579c4 LP |
186 | static double transfer_percent_as_double(Transfer *t) { |
187 | assert(t); | |
188 | ||
f5fbe71d | 189 | if (t->progress_percent == UINT_MAX) |
1d7579c4 LP |
190 | return -DBL_MAX; |
191 | ||
192 | return (double) t->progress_percent / 100.0; | |
193 | } | |
194 | ||
3d7415f4 LP |
195 | static void transfer_send_log_line(Transfer *t, const char *line) { |
196 | int r, priority = LOG_INFO; | |
197 | ||
198 | assert(t); | |
199 | assert(line); | |
200 | ||
201 | syslog_parse_priority(&line, &priority, true); | |
202 | ||
09d46cfd | 203 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
204 | |
205 | r = sd_bus_emit_signal( | |
206 | t->manager->bus, | |
207 | t->object_path, | |
208 | "org.freedesktop.import1.Transfer", | |
209 | "LogMessage", | |
210 | "us", | |
211 | priority, | |
212 | line); | |
213 | if (r < 0) | |
5b6299ee | 214 | log_warning_errno(r, "Cannot emit log message signal, ignoring: %m"); |
3d7415f4 LP |
215 | } |
216 | ||
217 | static void transfer_send_logs(Transfer *t, bool flush) { | |
218 | assert(t); | |
219 | ||
220 | /* Try to send out all log messages, if we can. But if we | |
221 | * can't we remove the messages from the buffer, but don't | |
222 | * fail */ | |
223 | ||
224 | while (t->log_message_size > 0) { | |
225 | _cleanup_free_ char *n = NULL; | |
226 | char *e; | |
227 | ||
228 | if (t->log_message_size >= sizeof(t->log_message)) | |
229 | e = t->log_message + sizeof(t->log_message); | |
230 | else { | |
231 | char *a, *b; | |
232 | ||
233 | a = memchr(t->log_message, 0, t->log_message_size); | |
234 | b = memchr(t->log_message, '\n', t->log_message_size); | |
235 | ||
236 | if (a && b) | |
237 | e = a < b ? a : b; | |
238 | else if (a) | |
239 | e = a; | |
240 | else | |
241 | e = b; | |
242 | } | |
243 | ||
244 | if (!e) { | |
245 | if (!flush) | |
246 | return; | |
247 | ||
248 | e = t->log_message + t->log_message_size; | |
249 | } | |
250 | ||
251 | n = strndup(t->log_message, e - t->log_message); | |
252 | ||
253 | /* Skip over NUL and newlines */ | |
ed0cb346 | 254 | while (e < t->log_message + t->log_message_size && IN_SET(*e, 0, '\n')) |
3d7415f4 LP |
255 | e++; |
256 | ||
257 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
258 | t->log_message_size -= e - t->log_message; | |
259 | ||
260 | if (!n) { | |
261 | log_oom(); | |
262 | continue; | |
263 | } | |
264 | ||
265 | if (isempty(n)) | |
266 | continue; | |
267 | ||
268 | transfer_send_log_line(t, n); | |
269 | } | |
270 | } | |
271 | ||
272 | static int transfer_finalize(Transfer *t, bool success) { | |
273 | int r; | |
274 | ||
275 | assert(t); | |
276 | ||
277 | transfer_send_logs(t, true); | |
278 | ||
279 | r = sd_bus_emit_signal( | |
280 | t->manager->bus, | |
281 | "/org/freedesktop/import1", | |
282 | "org.freedesktop.import1.Manager", | |
283 | "TransferRemoved", | |
284 | "uos", | |
285 | t->id, | |
286 | t->object_path, | |
287 | success ? "done" : | |
288 | t->n_canceled > 0 ? "canceled" : "failed"); | |
289 | ||
290 | if (r < 0) | |
291 | log_error_errno(r, "Cannot emit message: %m"); | |
292 | ||
293 | transfer_unref(t); | |
294 | return 0; | |
295 | } | |
296 | ||
297 | static int transfer_cancel(Transfer *t) { | |
298 | int r; | |
299 | ||
300 | assert(t); | |
301 | ||
302 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
303 | if (r < 0) | |
304 | return r; | |
305 | ||
306 | t->n_canceled++; | |
307 | return 0; | |
308 | } | |
309 | ||
310 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
99534007 | 311 | Transfer *t = ASSERT_PTR(userdata); |
3d7415f4 LP |
312 | bool success = false; |
313 | ||
314 | assert(s); | |
3d7415f4 LP |
315 | |
316 | if (si->si_code == CLD_EXITED) { | |
317 | if (si->si_status != 0) | |
4b71c27b | 318 | log_error("Transfer process failed with exit code %i.", si->si_status); |
3d7415f4 | 319 | else { |
4b71c27b | 320 | log_debug("Transfer process succeeded."); |
3d7415f4 LP |
321 | success = true; |
322 | } | |
323 | ||
3742095b | 324 | } else if (IN_SET(si->si_code, CLD_KILLED, CLD_DUMPED)) |
4b71c27b | 325 | log_error("Transfer process terminated by signal %s.", signal_to_string(si->si_status)); |
3d7415f4 | 326 | else |
4b71c27b | 327 | log_error("Transfer process failed due to unknown reason."); |
3d7415f4 LP |
328 | |
329 | t->pid = 0; | |
330 | ||
331 | return transfer_finalize(t, success); | |
332 | } | |
333 | ||
334 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
99534007 | 335 | Transfer *t = ASSERT_PTR(userdata); |
3d7415f4 LP |
336 | ssize_t l; |
337 | ||
338 | assert(s); | |
3d7415f4 LP |
339 | |
340 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
b0325c99 LP |
341 | if (l < 0) |
342 | log_error_errno(errno, "Failed to read log message: %m"); | |
3d7415f4 LP |
343 | if (l <= 0) { |
344 | /* EOF/read error. We just close the pipe here, and | |
345 | * close the watch, waiting for the SIGCHLD to arrive, | |
346 | * before we do anything else. */ | |
3d7415f4 LP |
347 | t->log_event_source = sd_event_source_unref(t->log_event_source); |
348 | return 0; | |
349 | } | |
350 | ||
351 | t->log_message_size += l; | |
352 | ||
353 | transfer_send_logs(t, false); | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | static int transfer_start(Transfer *t) { | |
19ee48a6 | 359 | _cleanup_close_pair_ int pipefd[2] = PIPE_EBADF; |
3d7415f4 LP |
360 | int r; |
361 | ||
362 | assert(t); | |
363 | assert(t->pid <= 0); | |
364 | ||
365 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
366 | return -errno; | |
367 | ||
4c253ed1 LP |
368 | r = safe_fork("(sd-transfer)", FORK_RESET_SIGNALS|FORK_DEATHSIG, &t->pid); |
369 | if (r < 0) | |
370 | return r; | |
371 | if (r == 0) { | |
3d7415f4 | 372 | const char *cmd[] = { |
1d7579c4 | 373 | NULL, /* systemd-import, systemd-import-fs, systemd-export or systemd-pull */ |
b43d75c3 | 374 | NULL, /* tar, raw */ |
b6e676ce | 375 | NULL, /* --verify= */ |
3d7415f4 LP |
376 | NULL, /* verify argument */ |
377 | NULL, /* maybe --force */ | |
b6e676ce | 378 | NULL, /* maybe --read-only */ |
587fec42 LP |
379 | NULL, /* if so: the actual URL */ |
380 | NULL, /* maybe --format= */ | |
381 | NULL, /* if so: the actual format */ | |
3d7415f4 LP |
382 | NULL, /* remote */ |
383 | NULL, /* local */ | |
384 | NULL | |
385 | }; | |
b6e676ce | 386 | unsigned k = 0; |
3d7415f4 LP |
387 | |
388 | /* Child */ | |
389 | ||
3d7415f4 LP |
390 | pipefd[0] = safe_close(pipefd[0]); |
391 | ||
aedec452 LP |
392 | r = rearrange_stdio(TAKE_FD(t->stdin_fd), |
393 | t->stdout_fd < 0 ? pipefd[1] : TAKE_FD(t->stdout_fd), | |
2b33ab09 | 394 | pipefd[1]); |
aedec452 | 395 | TAKE_FD(pipefd[1]); |
2b33ab09 LP |
396 | if (r < 0) { |
397 | log_error_errno(r, "Failed to set stdin/stdout/stderr: %m"); | |
3d7415f4 LP |
398 | _exit(EXIT_FAILURE); |
399 | } | |
400 | ||
df8067ef ZJS |
401 | if (setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1) < 0 || |
402 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1) < 0) { | |
403 | log_error_errno(errno, "setenv() failed: %m"); | |
404 | _exit(EXIT_FAILURE); | |
405 | } | |
3d7415f4 | 406 | |
d7548908 YW |
407 | r = setenv_systemd_exec_pid(true); |
408 | if (r < 0) | |
409 | log_warning_errno(r, "Failed to update $SYSTEMD_EXEC_PID, ignoring: %m"); | |
410 | ||
1d7579c4 LP |
411 | switch (t->type) { |
412 | ||
413 | case TRANSFER_IMPORT_TAR: | |
414 | case TRANSFER_IMPORT_RAW: | |
b6e676ce | 415 | cmd[k++] = SYSTEMD_IMPORT_PATH; |
1d7579c4 LP |
416 | break; |
417 | ||
418 | case TRANSFER_IMPORT_FS: | |
419 | cmd[k++] = SYSTEMD_IMPORT_FS_PATH; | |
420 | break; | |
421 | ||
422 | case TRANSFER_EXPORT_TAR: | |
423 | case TRANSFER_EXPORT_RAW: | |
587fec42 | 424 | cmd[k++] = SYSTEMD_EXPORT_PATH; |
1d7579c4 LP |
425 | break; |
426 | ||
427 | case TRANSFER_PULL_TAR: | |
428 | case TRANSFER_PULL_RAW: | |
b6e676ce | 429 | cmd[k++] = SYSTEMD_PULL_PATH; |
1d7579c4 LP |
430 | break; |
431 | ||
432 | default: | |
04499a70 | 433 | assert_not_reached(); |
1d7579c4 LP |
434 | } |
435 | ||
436 | switch (t->type) { | |
b6e676ce | 437 | |
1d7579c4 LP |
438 | case TRANSFER_IMPORT_TAR: |
439 | case TRANSFER_EXPORT_TAR: | |
440 | case TRANSFER_PULL_TAR: | |
b6e676ce | 441 | cmd[k++] = "tar"; |
1d7579c4 LP |
442 | break; |
443 | ||
444 | case TRANSFER_IMPORT_RAW: | |
445 | case TRANSFER_EXPORT_RAW: | |
446 | case TRANSFER_PULL_RAW: | |
b43d75c3 | 447 | cmd[k++] = "raw"; |
1d7579c4 LP |
448 | break; |
449 | ||
450 | case TRANSFER_IMPORT_FS: | |
451 | cmd[k++] = "run"; | |
452 | break; | |
453 | ||
454 | default: | |
455 | break; | |
456 | } | |
b6e676ce LP |
457 | |
458 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
459 | cmd[k++] = "--verify"; | |
460 | cmd[k++] = import_verify_to_string(t->verify); | |
461 | } | |
462 | ||
3d7415f4 LP |
463 | if (t->force_local) |
464 | cmd[k++] = "--force"; | |
b6e676ce LP |
465 | if (t->read_only) |
466 | cmd[k++] = "--read-only"; | |
3d7415f4 | 467 | |
587fec42 LP |
468 | if (t->format) { |
469 | cmd[k++] = "--format"; | |
470 | cmd[k++] = t->format; | |
471 | } | |
472 | ||
473 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
474 | if (t->remote) | |
475 | cmd[k++] = t->remote; | |
476 | else | |
477 | cmd[k++] = "-"; | |
478 | } | |
b6e676ce | 479 | |
3d7415f4 LP |
480 | if (t->local) |
481 | cmd[k++] = t->local; | |
482 | cmd[k] = NULL; | |
483 | ||
b6e676ce LP |
484 | execv(cmd[0], (char * const *) cmd); |
485 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
486 | _exit(EXIT_FAILURE); |
487 | } | |
488 | ||
489 | pipefd[1] = safe_close(pipefd[1]); | |
c10d6bdb | 490 | t->log_fd = TAKE_FD(pipefd[0]); |
3d7415f4 | 491 | |
b6e676ce LP |
492 | t->stdin_fd = safe_close(t->stdin_fd); |
493 | ||
ab09bf90 ZJS |
494 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, |
495 | t->pid, WEXITED, transfer_on_pid, t); | |
3d7415f4 LP |
496 | if (r < 0) |
497 | return r; | |
498 | ||
ab09bf90 ZJS |
499 | r = sd_event_add_io(t->manager->event, &t->log_event_source, |
500 | t->log_fd, EPOLLIN, transfer_on_log, t); | |
3d7415f4 LP |
501 | if (r < 0) |
502 | return r; | |
503 | ||
504 | /* Make sure always process logging before SIGCHLD */ | |
505 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
506 | if (r < 0) | |
507 | return r; | |
508 | ||
509 | r = sd_bus_emit_signal( | |
510 | t->manager->bus, | |
511 | "/org/freedesktop/import1", | |
512 | "org.freedesktop.import1.Manager", | |
513 | "TransferNew", | |
514 | "uo", | |
515 | t->id, | |
516 | t->object_path); | |
517 | if (r < 0) | |
518 | return r; | |
519 | ||
520 | return 0; | |
521 | } | |
522 | ||
523 | static Manager *manager_unref(Manager *m) { | |
524 | Transfer *t; | |
525 | ||
526 | if (!m) | |
527 | return NULL; | |
528 | ||
7079cfef LP |
529 | sd_event_source_unref(m->notify_event_source); |
530 | safe_close(m->notify_fd); | |
531 | ||
3d7415f4 LP |
532 | while ((t = hashmap_first(m->transfers))) |
533 | transfer_unref(t); | |
534 | ||
535 | hashmap_free(m->transfers); | |
536 | ||
537 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
538 | ||
03976f7b | 539 | m->bus = sd_bus_flush_close_unref(m->bus); |
3d7415f4 LP |
540 | sd_event_unref(m->event); |
541 | ||
6b430fdb | 542 | return mfree(m); |
3d7415f4 LP |
543 | } |
544 | ||
545 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
546 | ||
7079cfef LP |
547 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
548 | ||
549 | char buf[NOTIFY_BUFFER_MAX+1]; | |
550 | struct iovec iovec = { | |
551 | .iov_base = buf, | |
552 | .iov_len = sizeof(buf)-1, | |
553 | }; | |
fb29cdbe LP |
554 | CMSG_BUFFER_TYPE(CMSG_SPACE(sizeof(struct ucred)) + |
555 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)) control; | |
7079cfef LP |
556 | struct msghdr msghdr = { |
557 | .msg_iov = &iovec, | |
558 | .msg_iovlen = 1, | |
559 | .msg_control = &control, | |
560 | .msg_controllen = sizeof(control), | |
561 | }; | |
371d72e0 | 562 | struct ucred *ucred; |
7079cfef | 563 | Manager *m = userdata; |
7079cfef LP |
564 | char *p, *e; |
565 | Transfer *t; | |
7079cfef LP |
566 | ssize_t n; |
567 | int r; | |
568 | ||
3691bcf3 | 569 | n = recvmsg_safe(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); |
8add30a0 YW |
570 | if (n < 0) { |
571 | if (ERRNO_IS_TRANSIENT(n)) | |
572 | return 0; | |
3691bcf3 | 573 | return (int) n; |
8add30a0 | 574 | } |
7079cfef | 575 | |
1c8da044 LP |
576 | cmsg_close_all(&msghdr); |
577 | ||
7079cfef LP |
578 | if (msghdr.msg_flags & MSG_TRUNC) { |
579 | log_warning("Got overly long notification datagram, ignoring."); | |
580 | return 0; | |
581 | } | |
582 | ||
371d72e0 | 583 | ucred = CMSG_FIND_DATA(&msghdr, SOL_SOCKET, SCM_CREDENTIALS, struct ucred); |
7079cfef LP |
584 | if (!ucred || ucred->pid <= 0) { |
585 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
586 | return 0; | |
587 | } | |
588 | ||
90e74a66 | 589 | HASHMAP_FOREACH(t, m->transfers) |
7079cfef LP |
590 | if (ucred->pid == t->pid) |
591 | break; | |
592 | ||
593 | if (!t) { | |
594 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
595 | return 0; | |
596 | } | |
597 | ||
598 | buf[n] = 0; | |
599 | ||
600 | p = startswith(buf, "X_IMPORT_PROGRESS="); | |
601 | if (!p) { | |
602 | p = strstr(buf, "\nX_IMPORT_PROGRESS="); | |
603 | if (!p) | |
604 | return 0; | |
605 | ||
606 | p += 19; | |
607 | } | |
608 | ||
609 | e = strchrnul(p, '\n'); | |
610 | *e = 0; | |
611 | ||
5a8582fb LP |
612 | r = parse_percent(p); |
613 | if (r < 0) { | |
7079cfef LP |
614 | log_warning("Got invalid percent value, ignoring."); |
615 | return 0; | |
616 | } | |
617 | ||
5a8582fb | 618 | t->progress_percent = (unsigned) r; |
7079cfef | 619 | |
5a8582fb | 620 | log_debug("Got percentage from client: %u%%", t->progress_percent); |
7079cfef LP |
621 | return 0; |
622 | } | |
623 | ||
3d7415f4 LP |
624 | static int manager_new(Manager **ret) { |
625 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
626 | static const union sockaddr_union sa = { |
627 | .un.sun_family = AF_UNIX, | |
628 | .un.sun_path = "/run/systemd/import/notify", | |
629 | }; | |
3d7415f4 LP |
630 | int r; |
631 | ||
632 | assert(ret); | |
633 | ||
c7779a61 | 634 | m = new(Manager, 1); |
3d7415f4 LP |
635 | if (!m) |
636 | return -ENOMEM; | |
637 | ||
c7779a61 IS |
638 | *m = (Manager) { |
639 | .use_btrfs_subvol = true, | |
640 | .use_btrfs_quota = true, | |
641 | }; | |
642 | ||
3d7415f4 LP |
643 | r = sd_event_default(&m->event); |
644 | if (r < 0) | |
645 | return r; | |
646 | ||
647 | sd_event_set_watchdog(m->event, true); | |
648 | ||
649 | r = sd_bus_default_system(&m->bus); | |
650 | if (r < 0) | |
651 | return r; | |
652 | ||
7079cfef LP |
653 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
654 | if (m->notify_fd < 0) | |
655 | return -errno; | |
656 | ||
657 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
155b6876 | 658 | (void) sockaddr_un_unlink(&sa.un); |
7079cfef | 659 | |
fc2fffe7 | 660 | if (bind(m->notify_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) |
7079cfef LP |
661 | return -errno; |
662 | ||
2ff48e98 LP |
663 | r = setsockopt_int(m->notify_fd, SOL_SOCKET, SO_PASSCRED, true); |
664 | if (r < 0) | |
665 | return r; | |
7079cfef | 666 | |
ab09bf90 ZJS |
667 | r = sd_event_add_io(m->event, &m->notify_event_source, |
668 | m->notify_fd, EPOLLIN, manager_on_notify, m); | |
7079cfef LP |
669 | if (r < 0) |
670 | return r; | |
671 | ||
1cc6c93a | 672 | *ret = TAKE_PTR(m); |
3d7415f4 LP |
673 | |
674 | return 0; | |
675 | } | |
676 | ||
b43d75c3 | 677 | static Transfer *manager_find(Manager *m, TransferType type, const char *remote) { |
3d7415f4 | 678 | Transfer *t; |
3d7415f4 LP |
679 | |
680 | assert(m); | |
681 | assert(type >= 0); | |
682 | assert(type < _TRANSFER_TYPE_MAX); | |
683 | ||
90e74a66 | 684 | HASHMAP_FOREACH(t, m->transfers) |
b0325c99 | 685 | if (t->type == type && streq_ptr(t->remote, remote)) |
3d7415f4 | 686 | return t; |
3d7415f4 LP |
687 | |
688 | return NULL; | |
689 | } | |
690 | ||
19070062 | 691 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
b6e676ce LP |
692 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
693 | int fd, force, read_only, r; | |
694 | const char *local, *object; | |
99534007 | 695 | Manager *m = ASSERT_PTR(userdata); |
b6e676ce | 696 | TransferType type; |
1209ef94 | 697 | struct stat st; |
b6e676ce LP |
698 | uint32_t id; |
699 | ||
19070062 | 700 | assert(msg); |
19070062 | 701 | |
b6e676ce LP |
702 | r = bus_verify_polkit_async( |
703 | msg, | |
704 | CAP_SYS_ADMIN, | |
705 | "org.freedesktop.import1.import", | |
403ed0e5 | 706 | NULL, |
b6e676ce LP |
707 | false, |
708 | UID_INVALID, | |
709 | &m->polkit_registry, | |
710 | error); | |
711 | if (r < 0) | |
712 | return r; | |
713 | if (r == 0) | |
714 | return 1; /* Will call us back */ | |
715 | ||
716 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
717 | if (r < 0) | |
718 | return r; | |
719 | ||
1209ef94 AZ |
720 | if (fstat(fd, &st) < 0) |
721 | return -errno; | |
722 | ||
723 | if (!S_ISREG(st.st_mode) && !S_ISFIFO(st.st_mode)) | |
724 | return -EINVAL; | |
176a05c2 | 725 | |
52ef5dd7 | 726 | if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
727 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
728 | "Local name %s is invalid", local); | |
b6e676ce | 729 | |
c7779a61 | 730 | r = setup_machine_directory(error, m->use_btrfs_subvol, m->use_btrfs_quota); |
b6e676ce LP |
731 | if (r < 0) |
732 | return r; | |
733 | ||
ab09bf90 ZJS |
734 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? |
735 | TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
b6e676ce LP |
736 | |
737 | r = transfer_new(m, &t); | |
738 | if (r < 0) | |
739 | return r; | |
740 | ||
741 | t->type = type; | |
742 | t->force_local = force; | |
743 | t->read_only = read_only; | |
744 | ||
745 | t->local = strdup(local); | |
746 | if (!t->local) | |
747 | return -ENOMEM; | |
748 | ||
749 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
750 | if (t->stdin_fd < 0) | |
751 | return -errno; | |
752 | ||
753 | r = transfer_start(t); | |
754 | if (r < 0) | |
755 | return r; | |
756 | ||
757 | object = t->object_path; | |
758 | id = t->id; | |
759 | t = NULL; | |
760 | ||
761 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
762 | } | |
763 | ||
1d7579c4 LP |
764 | static int method_import_fs(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
765 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
766 | int fd, force, read_only, r; | |
767 | const char *local, *object; | |
99534007 | 768 | Manager *m = ASSERT_PTR(userdata); |
1d7579c4 LP |
769 | uint32_t id; |
770 | ||
771 | assert(msg); | |
1d7579c4 LP |
772 | |
773 | r = bus_verify_polkit_async( | |
774 | msg, | |
775 | CAP_SYS_ADMIN, | |
776 | "org.freedesktop.import1.import", | |
777 | NULL, | |
778 | false, | |
779 | UID_INVALID, | |
780 | &m->polkit_registry, | |
781 | error); | |
782 | if (r < 0) | |
783 | return r; | |
784 | if (r == 0) | |
785 | return 1; /* Will call us back */ | |
786 | ||
787 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
788 | if (r < 0) | |
789 | return r; | |
790 | ||
176a05c2 LP |
791 | r = fd_verify_directory(fd); |
792 | if (r < 0) | |
793 | return r; | |
794 | ||
52ef5dd7 | 795 | if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
796 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
797 | "Local name %s is invalid", local); | |
1d7579c4 | 798 | |
c7779a61 | 799 | r = setup_machine_directory(error, m->use_btrfs_subvol, m->use_btrfs_quota); |
1d7579c4 LP |
800 | if (r < 0) |
801 | return r; | |
802 | ||
803 | r = transfer_new(m, &t); | |
804 | if (r < 0) | |
805 | return r; | |
806 | ||
807 | t->type = TRANSFER_IMPORT_FS; | |
808 | t->force_local = force; | |
809 | t->read_only = read_only; | |
810 | ||
811 | t->local = strdup(local); | |
812 | if (!t->local) | |
813 | return -ENOMEM; | |
814 | ||
815 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
816 | if (t->stdin_fd < 0) | |
817 | return -errno; | |
818 | ||
819 | r = transfer_start(t); | |
820 | if (r < 0) | |
821 | return r; | |
822 | ||
823 | object = t->object_path; | |
824 | id = t->id; | |
825 | t = NULL; | |
826 | ||
827 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
828 | } | |
829 | ||
19070062 | 830 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
587fec42 LP |
831 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
832 | int fd, r; | |
833 | const char *local, *object, *format; | |
99534007 | 834 | Manager *m = ASSERT_PTR(userdata); |
587fec42 | 835 | TransferType type; |
1209ef94 | 836 | struct stat st; |
587fec42 LP |
837 | uint32_t id; |
838 | ||
19070062 | 839 | assert(msg); |
19070062 | 840 | |
587fec42 LP |
841 | r = bus_verify_polkit_async( |
842 | msg, | |
843 | CAP_SYS_ADMIN, | |
844 | "org.freedesktop.import1.export", | |
403ed0e5 | 845 | NULL, |
587fec42 LP |
846 | false, |
847 | UID_INVALID, | |
848 | &m->polkit_registry, | |
849 | error); | |
850 | if (r < 0) | |
851 | return r; | |
852 | if (r == 0) | |
853 | return 1; /* Will call us back */ | |
854 | ||
855 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
856 | if (r < 0) | |
857 | return r; | |
858 | ||
52ef5dd7 | 859 | if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
860 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
861 | "Local name %s is invalid", local); | |
587fec42 | 862 | |
1209ef94 AZ |
863 | if (fstat(fd, &st) < 0) |
864 | return -errno; | |
865 | ||
866 | if (!S_ISREG(st.st_mode) && !S_ISFIFO(st.st_mode)) | |
867 | return -EINVAL; | |
176a05c2 | 868 | |
ab09bf90 ZJS |
869 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? |
870 | TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
587fec42 LP |
871 | |
872 | r = transfer_new(m, &t); | |
873 | if (r < 0) | |
874 | return r; | |
875 | ||
876 | t->type = type; | |
877 | ||
878 | if (!isempty(format)) { | |
879 | t->format = strdup(format); | |
880 | if (!t->format) | |
881 | return -ENOMEM; | |
882 | } | |
883 | ||
884 | t->local = strdup(local); | |
885 | if (!t->local) | |
886 | return -ENOMEM; | |
887 | ||
888 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
889 | if (t->stdout_fd < 0) | |
890 | return -errno; | |
891 | ||
892 | r = transfer_start(t); | |
893 | if (r < 0) | |
894 | return r; | |
895 | ||
896 | object = t->object_path; | |
897 | id = t->id; | |
898 | t = NULL; | |
899 | ||
900 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
901 | } | |
902 | ||
19070062 | 903 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
904 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
905 | const char *remote, *local, *verify, *object; | |
99534007 | 906 | Manager *m = ASSERT_PTR(userdata); |
3d7415f4 LP |
907 | ImportVerify v; |
908 | TransferType type; | |
909 | int force, r; | |
910 | uint32_t id; | |
911 | ||
3d7415f4 | 912 | assert(msg); |
3d7415f4 LP |
913 | |
914 | r = bus_verify_polkit_async( | |
915 | msg, | |
916 | CAP_SYS_ADMIN, | |
917 | "org.freedesktop.import1.pull", | |
403ed0e5 | 918 | NULL, |
3d7415f4 | 919 | false, |
c529695e | 920 | UID_INVALID, |
3d7415f4 LP |
921 | &m->polkit_registry, |
922 | error); | |
923 | if (r < 0) | |
924 | return r; | |
925 | if (r == 0) | |
926 | return 1; /* Will call us back */ | |
927 | ||
928 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
929 | if (r < 0) | |
930 | return r; | |
931 | ||
c456862f | 932 | if (!http_url_is_valid(remote) && !file_url_is_valid(remote)) |
ab09bf90 ZJS |
933 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
934 | "URL %s is invalid", remote); | |
3d7415f4 LP |
935 | |
936 | if (isempty(local)) | |
937 | local = NULL; | |
52ef5dd7 | 938 | else if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
939 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
940 | "Local name %s is invalid", local); | |
3d7415f4 LP |
941 | |
942 | if (isempty(verify)) | |
943 | v = IMPORT_VERIFY_SIGNATURE; | |
944 | else | |
945 | v = import_verify_from_string(verify); | |
946 | if (v < 0) | |
ab09bf90 ZJS |
947 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
948 | "Unknown verification mode %s", verify); | |
3d7415f4 | 949 | |
c7779a61 | 950 | r = setup_machine_directory(error, m->use_btrfs_subvol, m->use_btrfs_quota); |
ce06fdfb LP |
951 | if (r < 0) |
952 | return r; | |
953 | ||
ab09bf90 ZJS |
954 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? |
955 | TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; | |
3d7415f4 | 956 | |
b43d75c3 | 957 | if (manager_find(m, type, remote)) |
ab09bf90 ZJS |
958 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, |
959 | "Transfer for %s already in progress.", remote); | |
3d7415f4 LP |
960 | |
961 | r = transfer_new(m, &t); | |
962 | if (r < 0) | |
963 | return r; | |
964 | ||
965 | t->type = type; | |
966 | t->verify = v; | |
967 | t->force_local = force; | |
968 | ||
969 | t->remote = strdup(remote); | |
970 | if (!t->remote) | |
971 | return -ENOMEM; | |
972 | ||
b6e676ce LP |
973 | if (local) { |
974 | t->local = strdup(local); | |
975 | if (!t->local) | |
976 | return -ENOMEM; | |
977 | } | |
3d7415f4 LP |
978 | |
979 | r = transfer_start(t); | |
980 | if (r < 0) | |
981 | return r; | |
982 | ||
983 | object = t->object_path; | |
984 | id = t->id; | |
985 | t = NULL; | |
986 | ||
987 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
988 | } | |
989 | ||
19070062 | 990 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
4afd3348 | 991 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
99534007 | 992 | Manager *m = ASSERT_PTR(userdata); |
3d7415f4 | 993 | Transfer *t; |
3d7415f4 LP |
994 | int r; |
995 | ||
3d7415f4 | 996 | assert(msg); |
3d7415f4 LP |
997 | |
998 | r = sd_bus_message_new_method_return(msg, &reply); | |
999 | if (r < 0) | |
1000 | return r; | |
1001 | ||
7079cfef | 1002 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
1003 | if (r < 0) |
1004 | return r; | |
1005 | ||
90e74a66 | 1006 | HASHMAP_FOREACH(t, m->transfers) { |
3d7415f4 LP |
1007 | |
1008 | r = sd_bus_message_append( | |
1009 | reply, | |
7079cfef | 1010 | "(usssdo)", |
3d7415f4 LP |
1011 | t->id, |
1012 | transfer_type_to_string(t->type), | |
1013 | t->remote, | |
1014 | t->local, | |
1d7579c4 | 1015 | transfer_percent_as_double(t), |
3d7415f4 LP |
1016 | t->object_path); |
1017 | if (r < 0) | |
1018 | return r; | |
1019 | } | |
1020 | ||
1021 | r = sd_bus_message_close_container(reply); | |
1022 | if (r < 0) | |
1023 | return r; | |
1024 | ||
9030ca46 | 1025 | return sd_bus_send(NULL, reply, NULL); |
3d7415f4 LP |
1026 | } |
1027 | ||
19070062 | 1028 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
99534007 | 1029 | Transfer *t = ASSERT_PTR(userdata); |
3d7415f4 LP |
1030 | int r; |
1031 | ||
3d7415f4 | 1032 | assert(msg); |
3d7415f4 LP |
1033 | |
1034 | r = bus_verify_polkit_async( | |
1035 | msg, | |
1036 | CAP_SYS_ADMIN, | |
1037 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1038 | NULL, |
3d7415f4 | 1039 | false, |
c529695e | 1040 | UID_INVALID, |
3d7415f4 LP |
1041 | &t->manager->polkit_registry, |
1042 | error); | |
1043 | if (r < 0) | |
1044 | return r; | |
1045 | if (r == 0) | |
1046 | return 1; /* Will call us back */ | |
1047 | ||
1048 | r = transfer_cancel(t); | |
1049 | if (r < 0) | |
1050 | return r; | |
1051 | ||
1052 | return sd_bus_reply_method_return(msg, NULL); | |
1053 | } | |
1054 | ||
19070062 | 1055 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
99534007 | 1056 | Manager *m = ASSERT_PTR(userdata); |
3d7415f4 LP |
1057 | Transfer *t; |
1058 | uint32_t id; | |
1059 | int r; | |
1060 | ||
3d7415f4 | 1061 | assert(msg); |
3d7415f4 LP |
1062 | |
1063 | r = bus_verify_polkit_async( | |
1064 | msg, | |
1065 | CAP_SYS_ADMIN, | |
1066 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1067 | NULL, |
3d7415f4 | 1068 | false, |
c529695e | 1069 | UID_INVALID, |
3d7415f4 LP |
1070 | &m->polkit_registry, |
1071 | error); | |
1072 | if (r < 0) | |
1073 | return r; | |
1074 | if (r == 0) | |
1075 | return 1; /* Will call us back */ | |
1076 | ||
1077 | r = sd_bus_message_read(msg, "u", &id); | |
1078 | if (r < 0) | |
1079 | return r; | |
1080 | if (id <= 0) | |
1b09b81c | 1081 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); |
3d7415f4 LP |
1082 | |
1083 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1084 | if (!t) | |
09d46cfd | 1085 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1086 | |
1087 | r = transfer_cancel(t); | |
1088 | if (r < 0) | |
1089 | return r; | |
1090 | ||
1091 | return sd_bus_reply_method_return(msg, NULL); | |
1092 | } | |
1093 | ||
7079cfef LP |
1094 | static int property_get_progress( |
1095 | sd_bus *bus, | |
1096 | const char *path, | |
1097 | const char *interface, | |
1098 | const char *property, | |
1099 | sd_bus_message *reply, | |
1100 | void *userdata, | |
1101 | sd_bus_error *error) { | |
1102 | ||
99534007 | 1103 | Transfer *t = ASSERT_PTR(userdata); |
7079cfef LP |
1104 | |
1105 | assert(bus); | |
1106 | assert(reply); | |
7079cfef | 1107 | |
1d7579c4 | 1108 | return sd_bus_message_append(reply, "d", transfer_percent_as_double(t)); |
7079cfef LP |
1109 | } |
1110 | ||
3d7415f4 LP |
1111 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1112 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1113 | ||
a3b7cf50 ZJS |
1114 | static int transfer_object_find( |
1115 | sd_bus *bus, | |
1116 | const char *path, | |
1117 | const char *interface, | |
1118 | void *userdata, | |
1119 | void **found, | |
1120 | sd_bus_error *error) { | |
1121 | ||
99534007 | 1122 | Manager *m = ASSERT_PTR(userdata); |
a3b7cf50 ZJS |
1123 | Transfer *t; |
1124 | const char *p; | |
1125 | uint32_t id; | |
1126 | int r; | |
1127 | ||
1128 | assert(bus); | |
1129 | assert(path); | |
1130 | assert(interface); | |
1131 | assert(found); | |
a3b7cf50 ZJS |
1132 | |
1133 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1134 | if (!p) | |
1135 | return 0; | |
1136 | ||
1137 | r = safe_atou32(p, &id); | |
1138 | if (r < 0 || id == 0) | |
1139 | return 0; | |
1140 | ||
1141 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1142 | if (!t) | |
1143 | return 0; | |
1144 | ||
1145 | *found = t; | |
1146 | return 1; | |
1147 | } | |
1148 | ||
1149 | static int transfer_node_enumerator( | |
1150 | sd_bus *bus, | |
1151 | const char *path, | |
1152 | void *userdata, | |
1153 | char ***nodes, | |
1154 | sd_bus_error *error) { | |
1155 | ||
1156 | _cleanup_strv_free_ char **l = NULL; | |
1157 | Manager *m = userdata; | |
1158 | Transfer *t; | |
1159 | unsigned k = 0; | |
a3b7cf50 ZJS |
1160 | |
1161 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1162 | if (!l) | |
1163 | return -ENOMEM; | |
1164 | ||
90e74a66 | 1165 | HASHMAP_FOREACH(t, m->transfers) { |
a3b7cf50 ZJS |
1166 | |
1167 | l[k] = strdup(t->object_path); | |
1168 | if (!l[k]) | |
1169 | return -ENOMEM; | |
1170 | ||
1171 | k++; | |
1172 | } | |
1173 | ||
1174 | *nodes = TAKE_PTR(l); | |
1175 | ||
1176 | return 1; | |
1177 | } | |
1178 | ||
3d7415f4 LP |
1179 | static const sd_bus_vtable transfer_vtable[] = { |
1180 | SD_BUS_VTABLE_START(0), | |
956ecd3c | 1181 | |
3d7415f4 LP |
1182 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), |
1183 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1184 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1185 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1186 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1187 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
956ecd3c | 1188 | |
3d7415f4 | 1189 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
956ecd3c ZJS |
1190 | |
1191 | SD_BUS_SIGNAL_WITH_NAMES("LogMessage", | |
1192 | "us", | |
1193 | SD_BUS_PARAM(priority) | |
1194 | SD_BUS_PARAM(line), | |
1195 | 0), | |
1196 | ||
3d7415f4 LP |
1197 | SD_BUS_VTABLE_END, |
1198 | }; | |
1199 | ||
a3b7cf50 ZJS |
1200 | static const BusObjectImplementation transfer_object = { |
1201 | "/org/freedesktop/import1/transfer", | |
1202 | "org.freedesktop.import1.Transfer", | |
1203 | .fallback_vtables = BUS_FALLBACK_VTABLES({transfer_vtable, transfer_object_find}), | |
1204 | .node_enumerator = transfer_node_enumerator, | |
1205 | }; | |
1206 | ||
3d7415f4 LP |
1207 | static const sd_bus_vtable manager_vtable[] = { |
1208 | SD_BUS_VTABLE_START(0), | |
956ecd3c ZJS |
1209 | |
1210 | SD_BUS_METHOD_WITH_NAMES("ImportTar", | |
1211 | "hsbb", | |
1212 | SD_BUS_PARAM(fd) | |
1213 | SD_BUS_PARAM(local_name) | |
1214 | SD_BUS_PARAM(force) | |
1215 | SD_BUS_PARAM(read_only), | |
1216 | "uo", | |
1217 | SD_BUS_PARAM(transfer_id) | |
1218 | SD_BUS_PARAM(transfer_path), | |
1219 | method_import_tar_or_raw, | |
1220 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1221 | SD_BUS_METHOD_WITH_NAMES("ImportRaw", | |
1222 | "hsbb", | |
1223 | SD_BUS_PARAM(fd) | |
1224 | SD_BUS_PARAM(local_name) | |
1225 | SD_BUS_PARAM(force) | |
1226 | SD_BUS_PARAM(read_only), | |
1227 | "uo", | |
1228 | SD_BUS_PARAM(transfer_id) | |
1229 | SD_BUS_PARAM(transfer_path), | |
1230 | method_import_tar_or_raw, | |
1231 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1232 | SD_BUS_METHOD_WITH_NAMES("ImportFileSystem", | |
1233 | "hsbb", | |
1234 | SD_BUS_PARAM(fd) | |
1235 | SD_BUS_PARAM(local_name) | |
1236 | SD_BUS_PARAM(force) | |
1237 | SD_BUS_PARAM(read_only), | |
1238 | "uo", | |
1239 | SD_BUS_PARAM(transfer_id) | |
1240 | SD_BUS_PARAM(transfer_path), | |
1241 | method_import_fs, | |
1242 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1243 | SD_BUS_METHOD_WITH_NAMES("ExportTar", | |
1244 | "shs", | |
1245 | SD_BUS_PARAM(local_name) | |
1246 | SD_BUS_PARAM(fd) | |
1247 | SD_BUS_PARAM(format), | |
1248 | "uo", | |
1249 | SD_BUS_PARAM(transfer_id) | |
1250 | SD_BUS_PARAM(transfer_path), | |
1251 | method_export_tar_or_raw, | |
1252 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1253 | SD_BUS_METHOD_WITH_NAMES("ExportRaw", | |
1254 | "shs", | |
1255 | SD_BUS_PARAM(local_name) | |
1256 | SD_BUS_PARAM(fd) | |
1257 | SD_BUS_PARAM(format), | |
1258 | "uo", | |
1259 | SD_BUS_PARAM(transfer_id) | |
1260 | SD_BUS_PARAM(transfer_path), | |
1261 | method_export_tar_or_raw, | |
1262 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1263 | SD_BUS_METHOD_WITH_NAMES("PullTar", | |
1264 | "sssb", | |
1265 | SD_BUS_PARAM(url) | |
1266 | SD_BUS_PARAM(local_name) | |
1267 | SD_BUS_PARAM(verify_mode) | |
1268 | SD_BUS_PARAM(force), | |
1269 | "uo", | |
1270 | SD_BUS_PARAM(transfer_id) | |
1271 | SD_BUS_PARAM(transfer_path), | |
1272 | method_pull_tar_or_raw, | |
1273 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1274 | SD_BUS_METHOD_WITH_NAMES("PullRaw", | |
1275 | "sssb", | |
1276 | SD_BUS_PARAM(url) | |
1277 | SD_BUS_PARAM(local_name) | |
1278 | SD_BUS_PARAM(verify_mode) | |
1279 | SD_BUS_PARAM(force), | |
1280 | "uo", | |
1281 | SD_BUS_PARAM(transfer_id) | |
1282 | SD_BUS_PARAM(transfer_path), | |
1283 | method_pull_tar_or_raw, | |
1284 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1285 | SD_BUS_METHOD_WITH_NAMES("ListTransfers", | |
1286 | NULL,, | |
1287 | "a(usssdo)", | |
1288 | SD_BUS_PARAM(transfers), | |
1289 | method_list_transfers, | |
1290 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1291 | SD_BUS_METHOD_WITH_NAMES("CancelTransfer", | |
1292 | "u", | |
1293 | SD_BUS_PARAM(transfer_id), | |
1294 | NULL,, | |
1295 | method_cancel_transfer, | |
1296 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1297 | ||
1298 | SD_BUS_SIGNAL_WITH_NAMES("TransferNew", | |
1299 | "uo", | |
1300 | SD_BUS_PARAM(transfer_id) | |
1301 | SD_BUS_PARAM(transfer_path), | |
1302 | 0), | |
1303 | SD_BUS_SIGNAL_WITH_NAMES("TransferRemoved", | |
1304 | "uos", | |
1305 | SD_BUS_PARAM(transfer_id) | |
1306 | SD_BUS_PARAM(transfer_path) | |
1307 | SD_BUS_PARAM(result), | |
1308 | 0), | |
1309 | ||
3d7415f4 LP |
1310 | SD_BUS_VTABLE_END, |
1311 | }; | |
1312 | ||
a3b7cf50 ZJS |
1313 | static const BusObjectImplementation manager_object = { |
1314 | "/org/freedesktop/import1", | |
1315 | "org.freedesktop.import1.Manager", | |
1316 | .vtables = BUS_VTABLES(manager_vtable), | |
1317 | .children = BUS_IMPLEMENTATIONS(&transfer_object), | |
1318 | }; | |
3d7415f4 LP |
1319 | |
1320 | static int manager_add_bus_objects(Manager *m) { | |
1321 | int r; | |
1322 | ||
1323 | assert(m); | |
1324 | ||
a3b7cf50 | 1325 | r = bus_add_implementation(m->bus, &manager_object, m); |
3d7415f4 | 1326 | if (r < 0) |
a3b7cf50 | 1327 | return r; |
3d7415f4 | 1328 | |
ac9f55ed LP |
1329 | r = bus_log_control_api_register(m->bus); |
1330 | if (r < 0) | |
1331 | return r; | |
1332 | ||
0c0b9306 | 1333 | r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.import1", 0, NULL, NULL); |
3d7415f4 | 1334 | if (r < 0) |
0c0b9306 | 1335 | return log_error_errno(r, "Failed to request name: %m"); |
3d7415f4 LP |
1336 | |
1337 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1338 | if (r < 0) | |
1339 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1340 | ||
1341 | return 0; | |
1342 | } | |
1343 | ||
1344 | static bool manager_check_idle(void *userdata) { | |
1345 | Manager *m = userdata; | |
1346 | ||
1347 | return hashmap_isempty(m->transfers); | |
1348 | } | |
1349 | ||
1350 | static int manager_run(Manager *m) { | |
1351 | assert(m); | |
1352 | ||
1353 | return bus_event_loop_with_idle( | |
1354 | m->event, | |
1355 | m->bus, | |
1356 | "org.freedesktop.import1", | |
1357 | DEFAULT_EXIT_USEC, | |
1358 | manager_check_idle, | |
1359 | m); | |
1360 | } | |
1361 | ||
c7779a61 IS |
1362 | static void manager_parse_env(Manager *m) { |
1363 | int r; | |
1364 | ||
1365 | assert(m); | |
1366 | ||
1367 | /* Same as src/import/{import,pull}.c: | |
1368 | * Let's make these relatively low-level settings also controllable via env vars. User can then set | |
1369 | * them for systemd-importd.service if they like to tweak behaviour */ | |
1370 | ||
1371 | r = getenv_bool("SYSTEMD_IMPORT_BTRFS_SUBVOL"); | |
1372 | if (r >= 0) | |
1373 | m->use_btrfs_subvol = r; | |
1374 | else if (r != -ENXIO) | |
1375 | log_warning_errno(r, "Failed to parse $SYSTEMD_IMPORT_BTRFS_SUBVOL: %m"); | |
1376 | ||
1377 | r = getenv_bool("SYSTEMD_IMPORT_BTRFS_QUOTA"); | |
1378 | if (r >= 0) | |
1379 | m->use_btrfs_quota = r; | |
1380 | else if (r != -ENXIO) | |
1381 | log_warning_errno(r, "Failed to parse $SYSTEMD_IMPORT_BTRFS_QUOTA: %m"); | |
1382 | } | |
1383 | ||
5272ae42 | 1384 | static int run(int argc, char *argv[]) { |
3d7415f4 LP |
1385 | _cleanup_(manager_unrefp) Manager *m = NULL; |
1386 | int r; | |
1387 | ||
d2acb93d | 1388 | log_setup(); |
3d7415f4 | 1389 | |
fc021a5b ZJS |
1390 | r = service_parse_argv("systemd-importd.service", |
1391 | "VM and container image import and export service.", | |
d4cc0edf ZJS |
1392 | BUS_IMPLEMENTATIONS(&manager_object, |
1393 | &log_control_object), | |
fc021a5b ZJS |
1394 | argc, argv); |
1395 | if (r <= 0) | |
1396 | return r; | |
3d7415f4 | 1397 | |
fc021a5b | 1398 | umask(0022); |
3d7415f4 | 1399 | |
72c0a2c2 | 1400 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); |
3d7415f4 LP |
1401 | |
1402 | r = manager_new(&m); | |
5272ae42 ZJS |
1403 | if (r < 0) |
1404 | return log_error_errno(r, "Failed to allocate manager object: %m"); | |
3d7415f4 | 1405 | |
c7779a61 IS |
1406 | manager_parse_env(m); |
1407 | ||
3d7415f4 LP |
1408 | r = manager_add_bus_objects(m); |
1409 | if (r < 0) | |
5272ae42 | 1410 | return r; |
3d7415f4 LP |
1411 | |
1412 | r = manager_run(m); | |
5272ae42 ZJS |
1413 | if (r < 0) |
1414 | return log_error_errno(r, "Failed to run event loop: %m"); | |
3d7415f4 | 1415 | |
5272ae42 | 1416 | return 0; |
3d7415f4 | 1417 | } |
5272ae42 ZJS |
1418 | |
1419 | DEFINE_MAIN_FUNCTION(run); |