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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" |
82fa9f28 | 13 | #include "common-signal.h" |
28db6fbf | 14 | #include "constants.h" |
d7548908 | 15 | #include "env-util.h" |
3ffd4af2 | 16 | #include "fd-util.h" |
1d7579c4 | 17 | #include "float.h" |
3ffd4af2 LP |
18 | #include "hostname-util.h" |
19 | #include "import-util.h" | |
432cea00 | 20 | #include "machine-pool.h" |
5e332028 | 21 | #include "main-func.h" |
f5947a5e | 22 | #include "missing_capability.h" |
35cd0ba5 | 23 | #include "mkdir-label.h" |
6bedfcbb | 24 | #include "parse-util.h" |
113b3fc1 | 25 | #include "path-util.h" |
ed5033fd | 26 | #include "percent-util.h" |
0b452006 | 27 | #include "process-util.h" |
fc021a5b | 28 | #include "service-util.h" |
40af3d02 | 29 | #include "signal-util.h" |
3ffd4af2 | 30 | #include "socket-util.h" |
176a05c2 | 31 | #include "stat-util.h" |
8b43440b | 32 | #include "string-table.h" |
3ffd4af2 | 33 | #include "strv.h" |
7ccbd1ae | 34 | #include "syslog-util.h" |
ee104e11 | 35 | #include "user-util.h" |
49cf4170 | 36 | #include "web-util.h" |
3d7415f4 LP |
37 | |
38 | typedef struct Transfer Transfer; | |
39 | typedef struct Manager Manager; | |
40 | ||
41 | typedef enum TransferType { | |
b6e676ce LP |
42 | TRANSFER_IMPORT_TAR, |
43 | TRANSFER_IMPORT_RAW, | |
1d7579c4 | 44 | TRANSFER_IMPORT_FS, |
587fec42 LP |
45 | TRANSFER_EXPORT_TAR, |
46 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
47 | TRANSFER_PULL_TAR, |
48 | TRANSFER_PULL_RAW, | |
3d7415f4 | 49 | _TRANSFER_TYPE_MAX, |
2d93c20e | 50 | _TRANSFER_TYPE_INVALID = -EINVAL, |
3d7415f4 LP |
51 | } TransferType; |
52 | ||
53 | struct Transfer { | |
54 | Manager *manager; | |
55 | ||
56 | uint32_t id; | |
57 | char *object_path; | |
58 | ||
59 | TransferType type; | |
60 | ImportVerify verify; | |
61 | ||
62 | char *remote; | |
63 | char *local; | |
64 | bool force_local; | |
b6e676ce | 65 | bool read_only; |
3d7415f4 | 66 | |
587fec42 | 67 | char *format; |
3d7415f4 LP |
68 | |
69 | pid_t pid; | |
70 | ||
71 | int log_fd; | |
72 | ||
73 | char log_message[LINE_MAX]; | |
74 | size_t log_message_size; | |
75 | ||
76 | sd_event_source *pid_event_source; | |
77 | sd_event_source *log_event_source; | |
78 | ||
79 | unsigned n_canceled; | |
7079cfef | 80 | unsigned progress_percent; |
b6e676ce LP |
81 | |
82 | int stdin_fd; | |
587fec42 | 83 | int stdout_fd; |
3d7415f4 LP |
84 | }; |
85 | ||
86 | struct Manager { | |
87 | sd_event *event; | |
88 | sd_bus *bus; | |
89 | ||
90 | uint32_t current_transfer_id; | |
91 | Hashmap *transfers; | |
92 | ||
93 | Hashmap *polkit_registry; | |
7079cfef LP |
94 | |
95 | int notify_fd; | |
96 | ||
97 | sd_event_source *notify_event_source; | |
c7779a61 IS |
98 | |
99 | bool use_btrfs_subvol; | |
100 | bool use_btrfs_quota; | |
3d7415f4 LP |
101 | }; |
102 | ||
103 | #define TRANSFERS_MAX 64 | |
104 | ||
105 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
106 | [TRANSFER_IMPORT_TAR] = "import-tar", |
107 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
1d7579c4 | 108 | [TRANSFER_IMPORT_FS] = "import-fs", |
587fec42 LP |
109 | [TRANSFER_EXPORT_TAR] = "export-tar", |
110 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b6e676ce LP |
111 | [TRANSFER_PULL_TAR] = "pull-tar", |
112 | [TRANSFER_PULL_RAW] = "pull-raw", | |
3d7415f4 LP |
113 | }; |
114 | ||
b9a5f858 | 115 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
116 | |
117 | static Transfer *transfer_unref(Transfer *t) { | |
118 | if (!t) | |
119 | return NULL; | |
120 | ||
121 | if (t->manager) | |
122 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
123 | ||
124 | sd_event_source_unref(t->pid_event_source); | |
125 | sd_event_source_unref(t->log_event_source); | |
126 | ||
127 | free(t->remote); | |
128 | free(t->local); | |
587fec42 | 129 | free(t->format); |
3d7415f4 LP |
130 | free(t->object_path); |
131 | ||
7950211d LP |
132 | if (t->pid > 1) |
133 | sigkill_wait(t->pid); | |
3d7415f4 LP |
134 | |
135 | safe_close(t->log_fd); | |
b6e676ce | 136 | safe_close(t->stdin_fd); |
587fec42 | 137 | safe_close(t->stdout_fd); |
3d7415f4 | 138 | |
6b430fdb | 139 | return mfree(t); |
3d7415f4 LP |
140 | } |
141 | ||
142 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
143 | ||
144 | static int transfer_new(Manager *m, Transfer **ret) { | |
145 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
146 | uint32_t id; | |
147 | int r; | |
148 | ||
149 | assert(m); | |
150 | assert(ret); | |
151 | ||
152 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
153 | return -E2BIG; | |
154 | ||
0d94088e | 155 | t = new(Transfer, 1); |
3d7415f4 LP |
156 | if (!t) |
157 | return -ENOMEM; | |
158 | ||
0d94088e YW |
159 | *t = (Transfer) { |
160 | .type = _TRANSFER_TYPE_INVALID, | |
254d1313 ZJS |
161 | .log_fd = -EBADF, |
162 | .stdin_fd = -EBADF, | |
163 | .stdout_fd = -EBADF, | |
0d94088e | 164 | .verify = _IMPORT_VERIFY_INVALID, |
f5fbe71d | 165 | .progress_percent= UINT_MAX, |
0d94088e | 166 | }; |
3d7415f4 LP |
167 | |
168 | id = m->current_transfer_id + 1; | |
169 | ||
170 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
171 | return -ENOMEM; | |
172 | ||
df24a407 | 173 | r = hashmap_ensure_put(&m->transfers, &trivial_hash_ops, UINT32_TO_PTR(id), t); |
3d7415f4 LP |
174 | if (r < 0) |
175 | return r; | |
176 | ||
177 | m->current_transfer_id = id; | |
178 | ||
179 | t->manager = m; | |
180 | t->id = id; | |
181 | ||
1cc6c93a | 182 | *ret = TAKE_PTR(t); |
3d7415f4 LP |
183 | |
184 | return 0; | |
185 | } | |
186 | ||
1d7579c4 LP |
187 | static double transfer_percent_as_double(Transfer *t) { |
188 | assert(t); | |
189 | ||
f5fbe71d | 190 | if (t->progress_percent == UINT_MAX) |
1d7579c4 LP |
191 | return -DBL_MAX; |
192 | ||
193 | return (double) t->progress_percent / 100.0; | |
194 | } | |
195 | ||
3d7415f4 LP |
196 | static void transfer_send_log_line(Transfer *t, const char *line) { |
197 | int r, priority = LOG_INFO; | |
198 | ||
199 | assert(t); | |
200 | assert(line); | |
201 | ||
202 | syslog_parse_priority(&line, &priority, true); | |
203 | ||
09d46cfd | 204 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
205 | |
206 | r = sd_bus_emit_signal( | |
207 | t->manager->bus, | |
208 | t->object_path, | |
209 | "org.freedesktop.import1.Transfer", | |
210 | "LogMessage", | |
211 | "us", | |
212 | priority, | |
213 | line); | |
214 | if (r < 0) | |
5b6299ee | 215 | log_warning_errno(r, "Cannot emit log message signal, ignoring: %m"); |
3d7415f4 LP |
216 | } |
217 | ||
218 | static void transfer_send_logs(Transfer *t, bool flush) { | |
219 | assert(t); | |
220 | ||
221 | /* Try to send out all log messages, if we can. But if we | |
222 | * can't we remove the messages from the buffer, but don't | |
223 | * fail */ | |
224 | ||
225 | while (t->log_message_size > 0) { | |
226 | _cleanup_free_ char *n = NULL; | |
227 | char *e; | |
228 | ||
229 | if (t->log_message_size >= sizeof(t->log_message)) | |
230 | e = t->log_message + sizeof(t->log_message); | |
231 | else { | |
232 | char *a, *b; | |
233 | ||
234 | a = memchr(t->log_message, 0, t->log_message_size); | |
235 | b = memchr(t->log_message, '\n', t->log_message_size); | |
236 | ||
237 | if (a && b) | |
238 | e = a < b ? a : b; | |
239 | else if (a) | |
240 | e = a; | |
241 | else | |
242 | e = b; | |
243 | } | |
244 | ||
245 | if (!e) { | |
246 | if (!flush) | |
247 | return; | |
248 | ||
249 | e = t->log_message + t->log_message_size; | |
250 | } | |
251 | ||
252 | n = strndup(t->log_message, e - t->log_message); | |
253 | ||
254 | /* Skip over NUL and newlines */ | |
ed0cb346 | 255 | while (e < t->log_message + t->log_message_size && IN_SET(*e, 0, '\n')) |
3d7415f4 LP |
256 | e++; |
257 | ||
258 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
259 | t->log_message_size -= e - t->log_message; | |
260 | ||
261 | if (!n) { | |
262 | log_oom(); | |
263 | continue; | |
264 | } | |
265 | ||
266 | if (isempty(n)) | |
267 | continue; | |
268 | ||
269 | transfer_send_log_line(t, n); | |
270 | } | |
271 | } | |
272 | ||
273 | static int transfer_finalize(Transfer *t, bool success) { | |
274 | int r; | |
275 | ||
276 | assert(t); | |
277 | ||
278 | transfer_send_logs(t, true); | |
279 | ||
280 | r = sd_bus_emit_signal( | |
281 | t->manager->bus, | |
282 | "/org/freedesktop/import1", | |
283 | "org.freedesktop.import1.Manager", | |
284 | "TransferRemoved", | |
285 | "uos", | |
286 | t->id, | |
287 | t->object_path, | |
288 | success ? "done" : | |
289 | t->n_canceled > 0 ? "canceled" : "failed"); | |
290 | ||
291 | if (r < 0) | |
292 | log_error_errno(r, "Cannot emit message: %m"); | |
293 | ||
294 | transfer_unref(t); | |
295 | return 0; | |
296 | } | |
297 | ||
298 | static int transfer_cancel(Transfer *t) { | |
299 | int r; | |
300 | ||
301 | assert(t); | |
302 | ||
303 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
304 | if (r < 0) | |
305 | return r; | |
306 | ||
307 | t->n_canceled++; | |
308 | return 0; | |
309 | } | |
310 | ||
311 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
99534007 | 312 | Transfer *t = ASSERT_PTR(userdata); |
3d7415f4 LP |
313 | bool success = false; |
314 | ||
315 | assert(s); | |
3d7415f4 LP |
316 | |
317 | if (si->si_code == CLD_EXITED) { | |
318 | if (si->si_status != 0) | |
4b71c27b | 319 | log_error("Transfer process failed with exit code %i.", si->si_status); |
3d7415f4 | 320 | else { |
4b71c27b | 321 | log_debug("Transfer process succeeded."); |
3d7415f4 LP |
322 | success = true; |
323 | } | |
324 | ||
3742095b | 325 | } else if (IN_SET(si->si_code, CLD_KILLED, CLD_DUMPED)) |
4b71c27b | 326 | log_error("Transfer process terminated by signal %s.", signal_to_string(si->si_status)); |
3d7415f4 | 327 | else |
4b71c27b | 328 | log_error("Transfer process failed due to unknown reason."); |
3d7415f4 LP |
329 | |
330 | t->pid = 0; | |
331 | ||
332 | return transfer_finalize(t, success); | |
333 | } | |
334 | ||
335 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
99534007 | 336 | Transfer *t = ASSERT_PTR(userdata); |
3d7415f4 LP |
337 | ssize_t l; |
338 | ||
339 | assert(s); | |
3d7415f4 LP |
340 | |
341 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
b0325c99 LP |
342 | if (l < 0) |
343 | log_error_errno(errno, "Failed to read log message: %m"); | |
3d7415f4 LP |
344 | if (l <= 0) { |
345 | /* EOF/read error. We just close the pipe here, and | |
346 | * close the watch, waiting for the SIGCHLD to arrive, | |
347 | * before we do anything else. */ | |
3d7415f4 LP |
348 | t->log_event_source = sd_event_source_unref(t->log_event_source); |
349 | return 0; | |
350 | } | |
351 | ||
352 | t->log_message_size += l; | |
353 | ||
354 | transfer_send_logs(t, false); | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | static int transfer_start(Transfer *t) { | |
19ee48a6 | 360 | _cleanup_close_pair_ int pipefd[2] = PIPE_EBADF; |
3d7415f4 LP |
361 | int r; |
362 | ||
363 | assert(t); | |
364 | assert(t->pid <= 0); | |
365 | ||
366 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
367 | return -errno; | |
368 | ||
0c2aedb4 YW |
369 | r = safe_fork_full("(sd-transfer)", |
370 | (int[]) { t->stdin_fd, t->stdout_fd < 0 ? pipefd[1] : t->stdout_fd, pipefd[1] }, | |
371 | NULL, 0, | |
372 | FORK_RESET_SIGNALS|FORK_CLOSE_ALL_FDS|FORK_DEATHSIG|FORK_REARRANGE_STDIO, &t->pid); | |
4c253ed1 LP |
373 | if (r < 0) |
374 | return r; | |
375 | if (r == 0) { | |
3d7415f4 | 376 | const char *cmd[] = { |
1d7579c4 | 377 | NULL, /* systemd-import, systemd-import-fs, systemd-export or systemd-pull */ |
b43d75c3 | 378 | NULL, /* tar, raw */ |
b6e676ce | 379 | NULL, /* --verify= */ |
3d7415f4 LP |
380 | NULL, /* verify argument */ |
381 | NULL, /* maybe --force */ | |
b6e676ce | 382 | NULL, /* maybe --read-only */ |
587fec42 LP |
383 | NULL, /* if so: the actual URL */ |
384 | NULL, /* maybe --format= */ | |
385 | NULL, /* if so: the actual format */ | |
3d7415f4 LP |
386 | NULL, /* remote */ |
387 | NULL, /* local */ | |
388 | NULL | |
389 | }; | |
b6e676ce | 390 | unsigned k = 0; |
3d7415f4 LP |
391 | |
392 | /* Child */ | |
393 | ||
df8067ef ZJS |
394 | if (setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1) < 0 || |
395 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1) < 0) { | |
396 | log_error_errno(errno, "setenv() failed: %m"); | |
397 | _exit(EXIT_FAILURE); | |
398 | } | |
3d7415f4 | 399 | |
d7548908 YW |
400 | r = setenv_systemd_exec_pid(true); |
401 | if (r < 0) | |
402 | log_warning_errno(r, "Failed to update $SYSTEMD_EXEC_PID, ignoring: %m"); | |
403 | ||
1d7579c4 LP |
404 | switch (t->type) { |
405 | ||
406 | case TRANSFER_IMPORT_TAR: | |
407 | case TRANSFER_IMPORT_RAW: | |
b6e676ce | 408 | cmd[k++] = SYSTEMD_IMPORT_PATH; |
1d7579c4 LP |
409 | break; |
410 | ||
411 | case TRANSFER_IMPORT_FS: | |
412 | cmd[k++] = SYSTEMD_IMPORT_FS_PATH; | |
413 | break; | |
414 | ||
415 | case TRANSFER_EXPORT_TAR: | |
416 | case TRANSFER_EXPORT_RAW: | |
587fec42 | 417 | cmd[k++] = SYSTEMD_EXPORT_PATH; |
1d7579c4 LP |
418 | break; |
419 | ||
420 | case TRANSFER_PULL_TAR: | |
421 | case TRANSFER_PULL_RAW: | |
b6e676ce | 422 | cmd[k++] = SYSTEMD_PULL_PATH; |
1d7579c4 LP |
423 | break; |
424 | ||
425 | default: | |
04499a70 | 426 | assert_not_reached(); |
1d7579c4 LP |
427 | } |
428 | ||
429 | switch (t->type) { | |
b6e676ce | 430 | |
1d7579c4 LP |
431 | case TRANSFER_IMPORT_TAR: |
432 | case TRANSFER_EXPORT_TAR: | |
433 | case TRANSFER_PULL_TAR: | |
b6e676ce | 434 | cmd[k++] = "tar"; |
1d7579c4 LP |
435 | break; |
436 | ||
437 | case TRANSFER_IMPORT_RAW: | |
438 | case TRANSFER_EXPORT_RAW: | |
439 | case TRANSFER_PULL_RAW: | |
b43d75c3 | 440 | cmd[k++] = "raw"; |
1d7579c4 LP |
441 | break; |
442 | ||
443 | case TRANSFER_IMPORT_FS: | |
444 | cmd[k++] = "run"; | |
445 | break; | |
446 | ||
447 | default: | |
448 | break; | |
449 | } | |
b6e676ce LP |
450 | |
451 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
452 | cmd[k++] = "--verify"; | |
453 | cmd[k++] = import_verify_to_string(t->verify); | |
454 | } | |
455 | ||
3d7415f4 LP |
456 | if (t->force_local) |
457 | cmd[k++] = "--force"; | |
b6e676ce LP |
458 | if (t->read_only) |
459 | cmd[k++] = "--read-only"; | |
3d7415f4 | 460 | |
587fec42 LP |
461 | if (t->format) { |
462 | cmd[k++] = "--format"; | |
463 | cmd[k++] = t->format; | |
464 | } | |
465 | ||
466 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
467 | if (t->remote) | |
468 | cmd[k++] = t->remote; | |
469 | else | |
470 | cmd[k++] = "-"; | |
471 | } | |
b6e676ce | 472 | |
3d7415f4 LP |
473 | if (t->local) |
474 | cmd[k++] = t->local; | |
475 | cmd[k] = NULL; | |
476 | ||
b6e676ce LP |
477 | execv(cmd[0], (char * const *) cmd); |
478 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
479 | _exit(EXIT_FAILURE); |
480 | } | |
481 | ||
482 | pipefd[1] = safe_close(pipefd[1]); | |
c10d6bdb | 483 | t->log_fd = TAKE_FD(pipefd[0]); |
3d7415f4 | 484 | |
b6e676ce LP |
485 | t->stdin_fd = safe_close(t->stdin_fd); |
486 | ||
ab09bf90 ZJS |
487 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, |
488 | t->pid, WEXITED, transfer_on_pid, t); | |
3d7415f4 LP |
489 | if (r < 0) |
490 | return r; | |
491 | ||
ab09bf90 ZJS |
492 | r = sd_event_add_io(t->manager->event, &t->log_event_source, |
493 | t->log_fd, EPOLLIN, transfer_on_log, t); | |
3d7415f4 LP |
494 | if (r < 0) |
495 | return r; | |
496 | ||
497 | /* Make sure always process logging before SIGCHLD */ | |
498 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
499 | if (r < 0) | |
500 | return r; | |
501 | ||
502 | r = sd_bus_emit_signal( | |
503 | t->manager->bus, | |
504 | "/org/freedesktop/import1", | |
505 | "org.freedesktop.import1.Manager", | |
506 | "TransferNew", | |
507 | "uo", | |
508 | t->id, | |
509 | t->object_path); | |
510 | if (r < 0) | |
511 | return r; | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
516 | static Manager *manager_unref(Manager *m) { | |
517 | Transfer *t; | |
518 | ||
519 | if (!m) | |
520 | return NULL; | |
521 | ||
7079cfef LP |
522 | sd_event_source_unref(m->notify_event_source); |
523 | safe_close(m->notify_fd); | |
524 | ||
3d7415f4 LP |
525 | while ((t = hashmap_first(m->transfers))) |
526 | transfer_unref(t); | |
527 | ||
528 | hashmap_free(m->transfers); | |
529 | ||
530 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
531 | ||
03976f7b | 532 | m->bus = sd_bus_flush_close_unref(m->bus); |
3d7415f4 LP |
533 | sd_event_unref(m->event); |
534 | ||
6b430fdb | 535 | return mfree(m); |
3d7415f4 LP |
536 | } |
537 | ||
538 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
539 | ||
7079cfef LP |
540 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
541 | ||
542 | char buf[NOTIFY_BUFFER_MAX+1]; | |
543 | struct iovec iovec = { | |
544 | .iov_base = buf, | |
545 | .iov_len = sizeof(buf)-1, | |
546 | }; | |
fb29cdbe LP |
547 | CMSG_BUFFER_TYPE(CMSG_SPACE(sizeof(struct ucred)) + |
548 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)) control; | |
7079cfef LP |
549 | struct msghdr msghdr = { |
550 | .msg_iov = &iovec, | |
551 | .msg_iovlen = 1, | |
552 | .msg_control = &control, | |
553 | .msg_controllen = sizeof(control), | |
554 | }; | |
371d72e0 | 555 | struct ucred *ucred; |
7079cfef | 556 | Manager *m = userdata; |
7079cfef | 557 | Transfer *t; |
7079cfef | 558 | ssize_t n; |
90f5f355 | 559 | char *p; |
7079cfef LP |
560 | int r; |
561 | ||
3691bcf3 | 562 | n = recvmsg_safe(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); |
8add30a0 YW |
563 | if (n < 0) { |
564 | if (ERRNO_IS_TRANSIENT(n)) | |
565 | return 0; | |
3691bcf3 | 566 | return (int) n; |
8add30a0 | 567 | } |
7079cfef | 568 | |
1c8da044 LP |
569 | cmsg_close_all(&msghdr); |
570 | ||
7079cfef LP |
571 | if (msghdr.msg_flags & MSG_TRUNC) { |
572 | log_warning("Got overly long notification datagram, ignoring."); | |
573 | return 0; | |
574 | } | |
575 | ||
371d72e0 | 576 | ucred = CMSG_FIND_DATA(&msghdr, SOL_SOCKET, SCM_CREDENTIALS, struct ucred); |
7079cfef LP |
577 | if (!ucred || ucred->pid <= 0) { |
578 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
579 | return 0; | |
580 | } | |
581 | ||
90e74a66 | 582 | HASHMAP_FOREACH(t, m->transfers) |
7079cfef LP |
583 | if (ucred->pid == t->pid) |
584 | break; | |
585 | ||
586 | if (!t) { | |
587 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
588 | return 0; | |
589 | } | |
590 | ||
591 | buf[n] = 0; | |
592 | ||
50ed5cbf LP |
593 | p = find_line_startswith(buf, "X_IMPORT_PROGRESS="); |
594 | if (!p) | |
595 | return 0; | |
7079cfef | 596 | |
90f5f355 | 597 | truncate_nl(p); |
7079cfef | 598 | |
5a8582fb LP |
599 | r = parse_percent(p); |
600 | if (r < 0) { | |
7079cfef LP |
601 | log_warning("Got invalid percent value, ignoring."); |
602 | return 0; | |
603 | } | |
604 | ||
5a8582fb | 605 | t->progress_percent = (unsigned) r; |
7079cfef | 606 | |
5a8582fb | 607 | log_debug("Got percentage from client: %u%%", t->progress_percent); |
7079cfef LP |
608 | return 0; |
609 | } | |
610 | ||
3d7415f4 LP |
611 | static int manager_new(Manager **ret) { |
612 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
613 | static const union sockaddr_union sa = { |
614 | .un.sun_family = AF_UNIX, | |
615 | .un.sun_path = "/run/systemd/import/notify", | |
616 | }; | |
3d7415f4 LP |
617 | int r; |
618 | ||
619 | assert(ret); | |
620 | ||
c7779a61 | 621 | m = new(Manager, 1); |
3d7415f4 LP |
622 | if (!m) |
623 | return -ENOMEM; | |
624 | ||
c7779a61 IS |
625 | *m = (Manager) { |
626 | .use_btrfs_subvol = true, | |
627 | .use_btrfs_quota = true, | |
628 | }; | |
629 | ||
3d7415f4 LP |
630 | r = sd_event_default(&m->event); |
631 | if (r < 0) | |
632 | return r; | |
633 | ||
82fa9f28 LP |
634 | (void) sd_event_set_watchdog(m->event, true); |
635 | ||
636 | r = sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL); | |
637 | if (r < 0) | |
638 | return r; | |
639 | ||
640 | r = sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL); | |
641 | if (r < 0) | |
642 | return r; | |
643 | ||
644 | r = sd_event_add_signal(m->event, NULL, SIGRTMIN+18, sigrtmin18_handler, NULL); | |
645 | if (r < 0) | |
646 | return r; | |
647 | ||
648 | r = sd_event_add_memory_pressure(m->event, NULL, NULL, NULL); | |
649 | if (r < 0) | |
650 | log_debug_errno(r, "Failed allocate memory pressure event source, ignoring: %m"); | |
3d7415f4 LP |
651 | |
652 | r = sd_bus_default_system(&m->bus); | |
653 | if (r < 0) | |
654 | return r; | |
655 | ||
7079cfef LP |
656 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
657 | if (m->notify_fd < 0) | |
658 | return -errno; | |
659 | ||
660 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
155b6876 | 661 | (void) sockaddr_un_unlink(&sa.un); |
7079cfef | 662 | |
fc2fffe7 | 663 | if (bind(m->notify_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) |
7079cfef LP |
664 | return -errno; |
665 | ||
2ff48e98 LP |
666 | r = setsockopt_int(m->notify_fd, SOL_SOCKET, SO_PASSCRED, true); |
667 | if (r < 0) | |
668 | return r; | |
7079cfef | 669 | |
ab09bf90 ZJS |
670 | r = sd_event_add_io(m->event, &m->notify_event_source, |
671 | m->notify_fd, EPOLLIN, manager_on_notify, m); | |
7079cfef LP |
672 | if (r < 0) |
673 | return r; | |
674 | ||
1cc6c93a | 675 | *ret = TAKE_PTR(m); |
3d7415f4 LP |
676 | |
677 | return 0; | |
678 | } | |
679 | ||
b43d75c3 | 680 | static Transfer *manager_find(Manager *m, TransferType type, const char *remote) { |
3d7415f4 | 681 | Transfer *t; |
3d7415f4 LP |
682 | |
683 | assert(m); | |
684 | assert(type >= 0); | |
685 | assert(type < _TRANSFER_TYPE_MAX); | |
686 | ||
90e74a66 | 687 | HASHMAP_FOREACH(t, m->transfers) |
b0325c99 | 688 | if (t->type == type && streq_ptr(t->remote, remote)) |
3d7415f4 | 689 | return t; |
3d7415f4 LP |
690 | |
691 | return NULL; | |
692 | } | |
693 | ||
19070062 | 694 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
b6e676ce LP |
695 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
696 | int fd, force, read_only, r; | |
697 | const char *local, *object; | |
99534007 | 698 | Manager *m = ASSERT_PTR(userdata); |
b6e676ce | 699 | TransferType type; |
1209ef94 | 700 | struct stat st; |
b6e676ce LP |
701 | uint32_t id; |
702 | ||
19070062 | 703 | assert(msg); |
19070062 | 704 | |
b6e676ce LP |
705 | r = bus_verify_polkit_async( |
706 | msg, | |
707 | CAP_SYS_ADMIN, | |
708 | "org.freedesktop.import1.import", | |
403ed0e5 | 709 | NULL, |
b6e676ce LP |
710 | false, |
711 | UID_INVALID, | |
712 | &m->polkit_registry, | |
713 | error); | |
714 | if (r < 0) | |
715 | return r; | |
716 | if (r == 0) | |
717 | return 1; /* Will call us back */ | |
718 | ||
719 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
720 | if (r < 0) | |
721 | return r; | |
722 | ||
1209ef94 AZ |
723 | if (fstat(fd, &st) < 0) |
724 | return -errno; | |
725 | ||
726 | if (!S_ISREG(st.st_mode) && !S_ISFIFO(st.st_mode)) | |
727 | return -EINVAL; | |
176a05c2 | 728 | |
52ef5dd7 | 729 | if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
730 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
731 | "Local name %s is invalid", local); | |
b6e676ce | 732 | |
c7779a61 | 733 | r = setup_machine_directory(error, m->use_btrfs_subvol, m->use_btrfs_quota); |
b6e676ce LP |
734 | if (r < 0) |
735 | return r; | |
736 | ||
ab09bf90 ZJS |
737 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? |
738 | TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
b6e676ce LP |
739 | |
740 | r = transfer_new(m, &t); | |
741 | if (r < 0) | |
742 | return r; | |
743 | ||
744 | t->type = type; | |
745 | t->force_local = force; | |
746 | t->read_only = read_only; | |
747 | ||
748 | t->local = strdup(local); | |
749 | if (!t->local) | |
750 | return -ENOMEM; | |
751 | ||
752 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
753 | if (t->stdin_fd < 0) | |
754 | return -errno; | |
755 | ||
756 | r = transfer_start(t); | |
757 | if (r < 0) | |
758 | return r; | |
759 | ||
760 | object = t->object_path; | |
761 | id = t->id; | |
762 | t = NULL; | |
763 | ||
764 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
765 | } | |
766 | ||
1d7579c4 LP |
767 | static int method_import_fs(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
768 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
769 | int fd, force, read_only, r; | |
770 | const char *local, *object; | |
99534007 | 771 | Manager *m = ASSERT_PTR(userdata); |
1d7579c4 LP |
772 | uint32_t id; |
773 | ||
774 | assert(msg); | |
1d7579c4 LP |
775 | |
776 | r = bus_verify_polkit_async( | |
777 | msg, | |
778 | CAP_SYS_ADMIN, | |
779 | "org.freedesktop.import1.import", | |
780 | NULL, | |
781 | false, | |
782 | UID_INVALID, | |
783 | &m->polkit_registry, | |
784 | error); | |
785 | if (r < 0) | |
786 | return r; | |
787 | if (r == 0) | |
788 | return 1; /* Will call us back */ | |
789 | ||
790 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
791 | if (r < 0) | |
792 | return r; | |
793 | ||
176a05c2 LP |
794 | r = fd_verify_directory(fd); |
795 | if (r < 0) | |
796 | return r; | |
797 | ||
52ef5dd7 | 798 | if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
799 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
800 | "Local name %s is invalid", local); | |
1d7579c4 | 801 | |
c7779a61 | 802 | r = setup_machine_directory(error, m->use_btrfs_subvol, m->use_btrfs_quota); |
1d7579c4 LP |
803 | if (r < 0) |
804 | return r; | |
805 | ||
806 | r = transfer_new(m, &t); | |
807 | if (r < 0) | |
808 | return r; | |
809 | ||
810 | t->type = TRANSFER_IMPORT_FS; | |
811 | t->force_local = force; | |
812 | t->read_only = read_only; | |
813 | ||
814 | t->local = strdup(local); | |
815 | if (!t->local) | |
816 | return -ENOMEM; | |
817 | ||
818 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
819 | if (t->stdin_fd < 0) | |
820 | return -errno; | |
821 | ||
822 | r = transfer_start(t); | |
823 | if (r < 0) | |
824 | return r; | |
825 | ||
826 | object = t->object_path; | |
827 | id = t->id; | |
828 | t = NULL; | |
829 | ||
830 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
831 | } | |
832 | ||
19070062 | 833 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
587fec42 LP |
834 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
835 | int fd, r; | |
836 | const char *local, *object, *format; | |
99534007 | 837 | Manager *m = ASSERT_PTR(userdata); |
587fec42 | 838 | TransferType type; |
1209ef94 | 839 | struct stat st; |
587fec42 LP |
840 | uint32_t id; |
841 | ||
19070062 | 842 | assert(msg); |
19070062 | 843 | |
587fec42 LP |
844 | r = bus_verify_polkit_async( |
845 | msg, | |
846 | CAP_SYS_ADMIN, | |
847 | "org.freedesktop.import1.export", | |
403ed0e5 | 848 | NULL, |
587fec42 LP |
849 | false, |
850 | UID_INVALID, | |
851 | &m->polkit_registry, | |
852 | error); | |
853 | if (r < 0) | |
854 | return r; | |
855 | if (r == 0) | |
856 | return 1; /* Will call us back */ | |
857 | ||
858 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
859 | if (r < 0) | |
860 | return r; | |
861 | ||
52ef5dd7 | 862 | if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
863 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
864 | "Local name %s is invalid", local); | |
587fec42 | 865 | |
1209ef94 AZ |
866 | if (fstat(fd, &st) < 0) |
867 | return -errno; | |
868 | ||
869 | if (!S_ISREG(st.st_mode) && !S_ISFIFO(st.st_mode)) | |
870 | return -EINVAL; | |
176a05c2 | 871 | |
ab09bf90 ZJS |
872 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? |
873 | TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
587fec42 LP |
874 | |
875 | r = transfer_new(m, &t); | |
876 | if (r < 0) | |
877 | return r; | |
878 | ||
879 | t->type = type; | |
880 | ||
881 | if (!isempty(format)) { | |
882 | t->format = strdup(format); | |
883 | if (!t->format) | |
884 | return -ENOMEM; | |
885 | } | |
886 | ||
887 | t->local = strdup(local); | |
888 | if (!t->local) | |
889 | return -ENOMEM; | |
890 | ||
891 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
892 | if (t->stdout_fd < 0) | |
893 | return -errno; | |
894 | ||
895 | r = transfer_start(t); | |
896 | if (r < 0) | |
897 | return r; | |
898 | ||
899 | object = t->object_path; | |
900 | id = t->id; | |
901 | t = NULL; | |
902 | ||
903 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
904 | } | |
905 | ||
19070062 | 906 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
907 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
908 | const char *remote, *local, *verify, *object; | |
99534007 | 909 | Manager *m = ASSERT_PTR(userdata); |
3d7415f4 LP |
910 | ImportVerify v; |
911 | TransferType type; | |
912 | int force, r; | |
913 | uint32_t id; | |
914 | ||
3d7415f4 | 915 | assert(msg); |
3d7415f4 LP |
916 | |
917 | r = bus_verify_polkit_async( | |
918 | msg, | |
919 | CAP_SYS_ADMIN, | |
920 | "org.freedesktop.import1.pull", | |
403ed0e5 | 921 | NULL, |
3d7415f4 | 922 | false, |
c529695e | 923 | UID_INVALID, |
3d7415f4 LP |
924 | &m->polkit_registry, |
925 | error); | |
926 | if (r < 0) | |
927 | return r; | |
928 | if (r == 0) | |
929 | return 1; /* Will call us back */ | |
930 | ||
931 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
932 | if (r < 0) | |
933 | return r; | |
934 | ||
c456862f | 935 | if (!http_url_is_valid(remote) && !file_url_is_valid(remote)) |
ab09bf90 ZJS |
936 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
937 | "URL %s is invalid", remote); | |
3d7415f4 LP |
938 | |
939 | if (isempty(local)) | |
940 | local = NULL; | |
52ef5dd7 | 941 | else if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
942 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
943 | "Local name %s is invalid", local); | |
3d7415f4 LP |
944 | |
945 | if (isempty(verify)) | |
946 | v = IMPORT_VERIFY_SIGNATURE; | |
947 | else | |
948 | v = import_verify_from_string(verify); | |
949 | if (v < 0) | |
ab09bf90 ZJS |
950 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
951 | "Unknown verification mode %s", verify); | |
3d7415f4 | 952 | |
c7779a61 | 953 | r = setup_machine_directory(error, m->use_btrfs_subvol, m->use_btrfs_quota); |
ce06fdfb LP |
954 | if (r < 0) |
955 | return r; | |
956 | ||
ab09bf90 ZJS |
957 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? |
958 | TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; | |
3d7415f4 | 959 | |
b43d75c3 | 960 | if (manager_find(m, type, remote)) |
ab09bf90 ZJS |
961 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, |
962 | "Transfer for %s already in progress.", remote); | |
3d7415f4 LP |
963 | |
964 | r = transfer_new(m, &t); | |
965 | if (r < 0) | |
966 | return r; | |
967 | ||
968 | t->type = type; | |
969 | t->verify = v; | |
970 | t->force_local = force; | |
971 | ||
972 | t->remote = strdup(remote); | |
973 | if (!t->remote) | |
974 | return -ENOMEM; | |
975 | ||
b6e676ce LP |
976 | if (local) { |
977 | t->local = strdup(local); | |
978 | if (!t->local) | |
979 | return -ENOMEM; | |
980 | } | |
3d7415f4 LP |
981 | |
982 | r = transfer_start(t); | |
983 | if (r < 0) | |
984 | return r; | |
985 | ||
986 | object = t->object_path; | |
987 | id = t->id; | |
988 | t = NULL; | |
989 | ||
990 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
991 | } | |
992 | ||
19070062 | 993 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
4afd3348 | 994 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
99534007 | 995 | Manager *m = ASSERT_PTR(userdata); |
3d7415f4 | 996 | Transfer *t; |
3d7415f4 LP |
997 | int r; |
998 | ||
3d7415f4 | 999 | assert(msg); |
3d7415f4 LP |
1000 | |
1001 | r = sd_bus_message_new_method_return(msg, &reply); | |
1002 | if (r < 0) | |
1003 | return r; | |
1004 | ||
7079cfef | 1005 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
1006 | if (r < 0) |
1007 | return r; | |
1008 | ||
90e74a66 | 1009 | HASHMAP_FOREACH(t, m->transfers) { |
3d7415f4 LP |
1010 | |
1011 | r = sd_bus_message_append( | |
1012 | reply, | |
7079cfef | 1013 | "(usssdo)", |
3d7415f4 LP |
1014 | t->id, |
1015 | transfer_type_to_string(t->type), | |
1016 | t->remote, | |
1017 | t->local, | |
1d7579c4 | 1018 | transfer_percent_as_double(t), |
3d7415f4 LP |
1019 | t->object_path); |
1020 | if (r < 0) | |
1021 | return r; | |
1022 | } | |
1023 | ||
1024 | r = sd_bus_message_close_container(reply); | |
1025 | if (r < 0) | |
1026 | return r; | |
1027 | ||
9030ca46 | 1028 | return sd_bus_send(NULL, reply, NULL); |
3d7415f4 LP |
1029 | } |
1030 | ||
19070062 | 1031 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
99534007 | 1032 | Transfer *t = ASSERT_PTR(userdata); |
3d7415f4 LP |
1033 | int r; |
1034 | ||
3d7415f4 | 1035 | assert(msg); |
3d7415f4 LP |
1036 | |
1037 | r = bus_verify_polkit_async( | |
1038 | msg, | |
1039 | CAP_SYS_ADMIN, | |
1040 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1041 | NULL, |
3d7415f4 | 1042 | false, |
c529695e | 1043 | UID_INVALID, |
3d7415f4 LP |
1044 | &t->manager->polkit_registry, |
1045 | error); | |
1046 | if (r < 0) | |
1047 | return r; | |
1048 | if (r == 0) | |
1049 | return 1; /* Will call us back */ | |
1050 | ||
1051 | r = transfer_cancel(t); | |
1052 | if (r < 0) | |
1053 | return r; | |
1054 | ||
1055 | return sd_bus_reply_method_return(msg, NULL); | |
1056 | } | |
1057 | ||
19070062 | 1058 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
99534007 | 1059 | Manager *m = ASSERT_PTR(userdata); |
3d7415f4 LP |
1060 | Transfer *t; |
1061 | uint32_t id; | |
1062 | int r; | |
1063 | ||
3d7415f4 | 1064 | assert(msg); |
3d7415f4 LP |
1065 | |
1066 | r = bus_verify_polkit_async( | |
1067 | msg, | |
1068 | CAP_SYS_ADMIN, | |
1069 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1070 | NULL, |
3d7415f4 | 1071 | false, |
c529695e | 1072 | UID_INVALID, |
3d7415f4 LP |
1073 | &m->polkit_registry, |
1074 | error); | |
1075 | if (r < 0) | |
1076 | return r; | |
1077 | if (r == 0) | |
1078 | return 1; /* Will call us back */ | |
1079 | ||
1080 | r = sd_bus_message_read(msg, "u", &id); | |
1081 | if (r < 0) | |
1082 | return r; | |
1083 | if (id <= 0) | |
1b09b81c | 1084 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); |
3d7415f4 LP |
1085 | |
1086 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1087 | if (!t) | |
09d46cfd | 1088 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1089 | |
1090 | r = transfer_cancel(t); | |
1091 | if (r < 0) | |
1092 | return r; | |
1093 | ||
1094 | return sd_bus_reply_method_return(msg, NULL); | |
1095 | } | |
1096 | ||
7079cfef LP |
1097 | static int property_get_progress( |
1098 | sd_bus *bus, | |
1099 | const char *path, | |
1100 | const char *interface, | |
1101 | const char *property, | |
1102 | sd_bus_message *reply, | |
1103 | void *userdata, | |
1104 | sd_bus_error *error) { | |
1105 | ||
99534007 | 1106 | Transfer *t = ASSERT_PTR(userdata); |
7079cfef LP |
1107 | |
1108 | assert(bus); | |
1109 | assert(reply); | |
7079cfef | 1110 | |
1d7579c4 | 1111 | return sd_bus_message_append(reply, "d", transfer_percent_as_double(t)); |
7079cfef LP |
1112 | } |
1113 | ||
3d7415f4 LP |
1114 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1115 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1116 | ||
a3b7cf50 ZJS |
1117 | static int transfer_object_find( |
1118 | sd_bus *bus, | |
1119 | const char *path, | |
1120 | const char *interface, | |
1121 | void *userdata, | |
1122 | void **found, | |
1123 | sd_bus_error *error) { | |
1124 | ||
99534007 | 1125 | Manager *m = ASSERT_PTR(userdata); |
a3b7cf50 ZJS |
1126 | Transfer *t; |
1127 | const char *p; | |
1128 | uint32_t id; | |
1129 | int r; | |
1130 | ||
1131 | assert(bus); | |
1132 | assert(path); | |
1133 | assert(interface); | |
1134 | assert(found); | |
a3b7cf50 ZJS |
1135 | |
1136 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1137 | if (!p) | |
1138 | return 0; | |
1139 | ||
1140 | r = safe_atou32(p, &id); | |
1141 | if (r < 0 || id == 0) | |
1142 | return 0; | |
1143 | ||
1144 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1145 | if (!t) | |
1146 | return 0; | |
1147 | ||
1148 | *found = t; | |
1149 | return 1; | |
1150 | } | |
1151 | ||
1152 | static int transfer_node_enumerator( | |
1153 | sd_bus *bus, | |
1154 | const char *path, | |
1155 | void *userdata, | |
1156 | char ***nodes, | |
1157 | sd_bus_error *error) { | |
1158 | ||
1159 | _cleanup_strv_free_ char **l = NULL; | |
1160 | Manager *m = userdata; | |
1161 | Transfer *t; | |
1162 | unsigned k = 0; | |
a3b7cf50 ZJS |
1163 | |
1164 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1165 | if (!l) | |
1166 | return -ENOMEM; | |
1167 | ||
90e74a66 | 1168 | HASHMAP_FOREACH(t, m->transfers) { |
a3b7cf50 ZJS |
1169 | |
1170 | l[k] = strdup(t->object_path); | |
1171 | if (!l[k]) | |
1172 | return -ENOMEM; | |
1173 | ||
1174 | k++; | |
1175 | } | |
1176 | ||
1177 | *nodes = TAKE_PTR(l); | |
1178 | ||
1179 | return 1; | |
1180 | } | |
1181 | ||
3d7415f4 LP |
1182 | static const sd_bus_vtable transfer_vtable[] = { |
1183 | SD_BUS_VTABLE_START(0), | |
956ecd3c | 1184 | |
3d7415f4 LP |
1185 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), |
1186 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1187 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1188 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1189 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1190 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
956ecd3c | 1191 | |
3d7415f4 | 1192 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
956ecd3c ZJS |
1193 | |
1194 | SD_BUS_SIGNAL_WITH_NAMES("LogMessage", | |
1195 | "us", | |
1196 | SD_BUS_PARAM(priority) | |
1197 | SD_BUS_PARAM(line), | |
1198 | 0), | |
1199 | ||
3d7415f4 LP |
1200 | SD_BUS_VTABLE_END, |
1201 | }; | |
1202 | ||
a3b7cf50 ZJS |
1203 | static const BusObjectImplementation transfer_object = { |
1204 | "/org/freedesktop/import1/transfer", | |
1205 | "org.freedesktop.import1.Transfer", | |
1206 | .fallback_vtables = BUS_FALLBACK_VTABLES({transfer_vtable, transfer_object_find}), | |
1207 | .node_enumerator = transfer_node_enumerator, | |
1208 | }; | |
1209 | ||
3d7415f4 LP |
1210 | static const sd_bus_vtable manager_vtable[] = { |
1211 | SD_BUS_VTABLE_START(0), | |
956ecd3c ZJS |
1212 | |
1213 | SD_BUS_METHOD_WITH_NAMES("ImportTar", | |
1214 | "hsbb", | |
1215 | SD_BUS_PARAM(fd) | |
1216 | SD_BUS_PARAM(local_name) | |
1217 | SD_BUS_PARAM(force) | |
1218 | SD_BUS_PARAM(read_only), | |
1219 | "uo", | |
1220 | SD_BUS_PARAM(transfer_id) | |
1221 | SD_BUS_PARAM(transfer_path), | |
1222 | method_import_tar_or_raw, | |
1223 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1224 | SD_BUS_METHOD_WITH_NAMES("ImportRaw", | |
1225 | "hsbb", | |
1226 | SD_BUS_PARAM(fd) | |
1227 | SD_BUS_PARAM(local_name) | |
1228 | SD_BUS_PARAM(force) | |
1229 | SD_BUS_PARAM(read_only), | |
1230 | "uo", | |
1231 | SD_BUS_PARAM(transfer_id) | |
1232 | SD_BUS_PARAM(transfer_path), | |
1233 | method_import_tar_or_raw, | |
1234 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1235 | SD_BUS_METHOD_WITH_NAMES("ImportFileSystem", | |
1236 | "hsbb", | |
1237 | SD_BUS_PARAM(fd) | |
1238 | SD_BUS_PARAM(local_name) | |
1239 | SD_BUS_PARAM(force) | |
1240 | SD_BUS_PARAM(read_only), | |
1241 | "uo", | |
1242 | SD_BUS_PARAM(transfer_id) | |
1243 | SD_BUS_PARAM(transfer_path), | |
1244 | method_import_fs, | |
1245 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1246 | SD_BUS_METHOD_WITH_NAMES("ExportTar", | |
1247 | "shs", | |
1248 | SD_BUS_PARAM(local_name) | |
1249 | SD_BUS_PARAM(fd) | |
1250 | SD_BUS_PARAM(format), | |
1251 | "uo", | |
1252 | SD_BUS_PARAM(transfer_id) | |
1253 | SD_BUS_PARAM(transfer_path), | |
1254 | method_export_tar_or_raw, | |
1255 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1256 | SD_BUS_METHOD_WITH_NAMES("ExportRaw", | |
1257 | "shs", | |
1258 | SD_BUS_PARAM(local_name) | |
1259 | SD_BUS_PARAM(fd) | |
1260 | SD_BUS_PARAM(format), | |
1261 | "uo", | |
1262 | SD_BUS_PARAM(transfer_id) | |
1263 | SD_BUS_PARAM(transfer_path), | |
1264 | method_export_tar_or_raw, | |
1265 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1266 | SD_BUS_METHOD_WITH_NAMES("PullTar", | |
1267 | "sssb", | |
1268 | SD_BUS_PARAM(url) | |
1269 | SD_BUS_PARAM(local_name) | |
1270 | SD_BUS_PARAM(verify_mode) | |
1271 | SD_BUS_PARAM(force), | |
1272 | "uo", | |
1273 | SD_BUS_PARAM(transfer_id) | |
1274 | SD_BUS_PARAM(transfer_path), | |
1275 | method_pull_tar_or_raw, | |
1276 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1277 | SD_BUS_METHOD_WITH_NAMES("PullRaw", | |
1278 | "sssb", | |
1279 | SD_BUS_PARAM(url) | |
1280 | SD_BUS_PARAM(local_name) | |
1281 | SD_BUS_PARAM(verify_mode) | |
1282 | SD_BUS_PARAM(force), | |
1283 | "uo", | |
1284 | SD_BUS_PARAM(transfer_id) | |
1285 | SD_BUS_PARAM(transfer_path), | |
1286 | method_pull_tar_or_raw, | |
1287 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1288 | SD_BUS_METHOD_WITH_NAMES("ListTransfers", | |
1289 | NULL,, | |
1290 | "a(usssdo)", | |
1291 | SD_BUS_PARAM(transfers), | |
1292 | method_list_transfers, | |
1293 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1294 | SD_BUS_METHOD_WITH_NAMES("CancelTransfer", | |
1295 | "u", | |
1296 | SD_BUS_PARAM(transfer_id), | |
1297 | NULL,, | |
1298 | method_cancel_transfer, | |
1299 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1300 | ||
1301 | SD_BUS_SIGNAL_WITH_NAMES("TransferNew", | |
1302 | "uo", | |
1303 | SD_BUS_PARAM(transfer_id) | |
1304 | SD_BUS_PARAM(transfer_path), | |
1305 | 0), | |
1306 | SD_BUS_SIGNAL_WITH_NAMES("TransferRemoved", | |
1307 | "uos", | |
1308 | SD_BUS_PARAM(transfer_id) | |
1309 | SD_BUS_PARAM(transfer_path) | |
1310 | SD_BUS_PARAM(result), | |
1311 | 0), | |
1312 | ||
3d7415f4 LP |
1313 | SD_BUS_VTABLE_END, |
1314 | }; | |
1315 | ||
a3b7cf50 ZJS |
1316 | static const BusObjectImplementation manager_object = { |
1317 | "/org/freedesktop/import1", | |
1318 | "org.freedesktop.import1.Manager", | |
1319 | .vtables = BUS_VTABLES(manager_vtable), | |
1320 | .children = BUS_IMPLEMENTATIONS(&transfer_object), | |
1321 | }; | |
3d7415f4 LP |
1322 | |
1323 | static int manager_add_bus_objects(Manager *m) { | |
1324 | int r; | |
1325 | ||
1326 | assert(m); | |
1327 | ||
a3b7cf50 | 1328 | r = bus_add_implementation(m->bus, &manager_object, m); |
3d7415f4 | 1329 | if (r < 0) |
a3b7cf50 | 1330 | return r; |
3d7415f4 | 1331 | |
ac9f55ed LP |
1332 | r = bus_log_control_api_register(m->bus); |
1333 | if (r < 0) | |
1334 | return r; | |
1335 | ||
0c0b9306 | 1336 | r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.import1", 0, NULL, NULL); |
3d7415f4 | 1337 | if (r < 0) |
0c0b9306 | 1338 | return log_error_errno(r, "Failed to request name: %m"); |
3d7415f4 LP |
1339 | |
1340 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1341 | if (r < 0) | |
1342 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1343 | ||
1344 | return 0; | |
1345 | } | |
1346 | ||
1347 | static bool manager_check_idle(void *userdata) { | |
1348 | Manager *m = userdata; | |
1349 | ||
1350 | return hashmap_isempty(m->transfers); | |
1351 | } | |
1352 | ||
1353 | static int manager_run(Manager *m) { | |
1354 | assert(m); | |
1355 | ||
1356 | return bus_event_loop_with_idle( | |
1357 | m->event, | |
1358 | m->bus, | |
1359 | "org.freedesktop.import1", | |
1360 | DEFAULT_EXIT_USEC, | |
1361 | manager_check_idle, | |
1362 | m); | |
1363 | } | |
1364 | ||
c7779a61 IS |
1365 | static void manager_parse_env(Manager *m) { |
1366 | int r; | |
1367 | ||
1368 | assert(m); | |
1369 | ||
1370 | /* Same as src/import/{import,pull}.c: | |
1371 | * Let's make these relatively low-level settings also controllable via env vars. User can then set | |
1372 | * them for systemd-importd.service if they like to tweak behaviour */ | |
1373 | ||
1374 | r = getenv_bool("SYSTEMD_IMPORT_BTRFS_SUBVOL"); | |
1375 | if (r >= 0) | |
1376 | m->use_btrfs_subvol = r; | |
1377 | else if (r != -ENXIO) | |
1378 | log_warning_errno(r, "Failed to parse $SYSTEMD_IMPORT_BTRFS_SUBVOL: %m"); | |
1379 | ||
1380 | r = getenv_bool("SYSTEMD_IMPORT_BTRFS_QUOTA"); | |
1381 | if (r >= 0) | |
1382 | m->use_btrfs_quota = r; | |
1383 | else if (r != -ENXIO) | |
1384 | log_warning_errno(r, "Failed to parse $SYSTEMD_IMPORT_BTRFS_QUOTA: %m"); | |
1385 | } | |
1386 | ||
5272ae42 | 1387 | static int run(int argc, char *argv[]) { |
3d7415f4 LP |
1388 | _cleanup_(manager_unrefp) Manager *m = NULL; |
1389 | int r; | |
1390 | ||
d2acb93d | 1391 | log_setup(); |
3d7415f4 | 1392 | |
fc021a5b ZJS |
1393 | r = service_parse_argv("systemd-importd.service", |
1394 | "VM and container image import and export service.", | |
d4cc0edf ZJS |
1395 | BUS_IMPLEMENTATIONS(&manager_object, |
1396 | &log_control_object), | |
fc021a5b ZJS |
1397 | argc, argv); |
1398 | if (r <= 0) | |
1399 | return r; | |
3d7415f4 | 1400 | |
fc021a5b | 1401 | umask(0022); |
3d7415f4 | 1402 | |
82fa9f28 | 1403 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, SIGTERM, SIGINT, SIGRTMIN+18, -1) >= 0); |
3d7415f4 LP |
1404 | |
1405 | r = manager_new(&m); | |
5272ae42 ZJS |
1406 | if (r < 0) |
1407 | return log_error_errno(r, "Failed to allocate manager object: %m"); | |
3d7415f4 | 1408 | |
c7779a61 IS |
1409 | manager_parse_env(m); |
1410 | ||
3d7415f4 LP |
1411 | r = manager_add_bus_objects(m); |
1412 | if (r < 0) | |
5272ae42 | 1413 | return r; |
3d7415f4 LP |
1414 | |
1415 | r = manager_run(m); | |
5272ae42 ZJS |
1416 | if (r < 0) |
1417 | return log_error_errno(r, "Failed to run event loop: %m"); | |
3d7415f4 | 1418 | |
5272ae42 | 1419 | return 0; |
3d7415f4 | 1420 | } |
5272ae42 ZJS |
1421 | |
1422 | DEFINE_MAIN_FUNCTION(run); |