]>
Commit | Line | Data |
---|---|---|
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" |
a0afd4e7 | 9 | #include "build-path.h" |
3d7415f4 | 10 | #include "bus-common-errors.h" |
40af3d02 | 11 | #include "bus-get-properties.h" |
ac9f55ed | 12 | #include "bus-log-control-api.h" |
269e4d2d | 13 | #include "bus-polkit.h" |
82fa9f28 | 14 | #include "common-signal.h" |
28db6fbf | 15 | #include "constants.h" |
deb86997 | 16 | #include "daemon-util.h" |
d7548908 | 17 | #include "env-util.h" |
09232207 | 18 | #include "event-util.h" |
3ffd4af2 | 19 | #include "fd-util.h" |
1d7579c4 | 20 | #include "float.h" |
3ffd4af2 LP |
21 | #include "hostname-util.h" |
22 | #include "import-util.h" | |
432cea00 | 23 | #include "machine-pool.h" |
5e332028 | 24 | #include "main-func.h" |
f5947a5e | 25 | #include "missing_capability.h" |
35cd0ba5 | 26 | #include "mkdir-label.h" |
6bedfcbb | 27 | #include "parse-util.h" |
113b3fc1 | 28 | #include "path-util.h" |
ed5033fd | 29 | #include "percent-util.h" |
0b452006 | 30 | #include "process-util.h" |
fc021a5b | 31 | #include "service-util.h" |
40af3d02 | 32 | #include "signal-util.h" |
3ffd4af2 | 33 | #include "socket-util.h" |
176a05c2 | 34 | #include "stat-util.h" |
8b43440b | 35 | #include "string-table.h" |
3ffd4af2 | 36 | #include "strv.h" |
7ccbd1ae | 37 | #include "syslog-util.h" |
ee104e11 | 38 | #include "user-util.h" |
49cf4170 | 39 | #include "web-util.h" |
3d7415f4 LP |
40 | |
41 | typedef struct Transfer Transfer; | |
42 | typedef struct Manager Manager; | |
43 | ||
44 | typedef enum TransferType { | |
b6e676ce LP |
45 | TRANSFER_IMPORT_TAR, |
46 | TRANSFER_IMPORT_RAW, | |
1d7579c4 | 47 | TRANSFER_IMPORT_FS, |
587fec42 LP |
48 | TRANSFER_EXPORT_TAR, |
49 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
50 | TRANSFER_PULL_TAR, |
51 | TRANSFER_PULL_RAW, | |
3d7415f4 | 52 | _TRANSFER_TYPE_MAX, |
2d93c20e | 53 | _TRANSFER_TYPE_INVALID = -EINVAL, |
3d7415f4 LP |
54 | } TransferType; |
55 | ||
56 | struct Transfer { | |
57 | Manager *manager; | |
58 | ||
59 | uint32_t id; | |
60 | char *object_path; | |
61 | ||
62 | TransferType type; | |
63 | ImportVerify verify; | |
64 | ||
65 | char *remote; | |
66 | char *local; | |
67 | bool force_local; | |
b6e676ce | 68 | bool read_only; |
3d7415f4 | 69 | |
587fec42 | 70 | char *format; |
3d7415f4 | 71 | |
09232207 | 72 | PidRef pidref; |
3d7415f4 LP |
73 | |
74 | int log_fd; | |
75 | ||
76 | char log_message[LINE_MAX]; | |
77 | size_t log_message_size; | |
78 | ||
79 | sd_event_source *pid_event_source; | |
80 | sd_event_source *log_event_source; | |
81 | ||
82 | unsigned n_canceled; | |
7079cfef | 83 | unsigned progress_percent; |
b6e676ce LP |
84 | |
85 | int stdin_fd; | |
587fec42 | 86 | int stdout_fd; |
3d7415f4 LP |
87 | }; |
88 | ||
89 | struct Manager { | |
90 | sd_event *event; | |
91 | sd_bus *bus; | |
92 | ||
93 | uint32_t current_transfer_id; | |
94 | Hashmap *transfers; | |
95 | ||
96 | Hashmap *polkit_registry; | |
7079cfef LP |
97 | |
98 | int notify_fd; | |
99 | ||
100 | sd_event_source *notify_event_source; | |
c7779a61 IS |
101 | |
102 | bool use_btrfs_subvol; | |
103 | bool use_btrfs_quota; | |
3d7415f4 LP |
104 | }; |
105 | ||
106 | #define TRANSFERS_MAX 64 | |
107 | ||
108 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
109 | [TRANSFER_IMPORT_TAR] = "import-tar", |
110 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
b37ec1e7 | 111 | [TRANSFER_IMPORT_FS] = "import-fs", |
587fec42 LP |
112 | [TRANSFER_EXPORT_TAR] = "export-tar", |
113 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b37ec1e7 LP |
114 | [TRANSFER_PULL_TAR] = "pull-tar", |
115 | [TRANSFER_PULL_RAW] = "pull-raw", | |
3d7415f4 LP |
116 | }; |
117 | ||
b9a5f858 | 118 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
119 | |
120 | static Transfer *transfer_unref(Transfer *t) { | |
121 | if (!t) | |
122 | return NULL; | |
123 | ||
124 | if (t->manager) | |
125 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
126 | ||
127 | sd_event_source_unref(t->pid_event_source); | |
128 | sd_event_source_unref(t->log_event_source); | |
129 | ||
130 | free(t->remote); | |
131 | free(t->local); | |
587fec42 | 132 | free(t->format); |
3d7415f4 LP |
133 | free(t->object_path); |
134 | ||
09232207 | 135 | pidref_done_sigkill_wait(&t->pidref); |
3d7415f4 LP |
136 | |
137 | safe_close(t->log_fd); | |
b6e676ce | 138 | safe_close(t->stdin_fd); |
587fec42 | 139 | safe_close(t->stdout_fd); |
3d7415f4 | 140 | |
6b430fdb | 141 | return mfree(t); |
3d7415f4 LP |
142 | } |
143 | ||
144 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
145 | ||
146 | static int transfer_new(Manager *m, Transfer **ret) { | |
147 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
148 | uint32_t id; | |
149 | int r; | |
150 | ||
151 | assert(m); | |
152 | assert(ret); | |
153 | ||
154 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
155 | return -E2BIG; | |
156 | ||
0d94088e | 157 | t = new(Transfer, 1); |
3d7415f4 LP |
158 | if (!t) |
159 | return -ENOMEM; | |
160 | ||
0d94088e YW |
161 | *t = (Transfer) { |
162 | .type = _TRANSFER_TYPE_INVALID, | |
254d1313 ZJS |
163 | .log_fd = -EBADF, |
164 | .stdin_fd = -EBADF, | |
165 | .stdout_fd = -EBADF, | |
0d94088e | 166 | .verify = _IMPORT_VERIFY_INVALID, |
f5fbe71d | 167 | .progress_percent= UINT_MAX, |
0d94088e | 168 | }; |
3d7415f4 LP |
169 | |
170 | id = m->current_transfer_id + 1; | |
171 | ||
172 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
173 | return -ENOMEM; | |
174 | ||
df24a407 | 175 | r = hashmap_ensure_put(&m->transfers, &trivial_hash_ops, UINT32_TO_PTR(id), t); |
3d7415f4 LP |
176 | if (r < 0) |
177 | return r; | |
178 | ||
179 | m->current_transfer_id = id; | |
180 | ||
181 | t->manager = m; | |
182 | t->id = id; | |
183 | ||
1cc6c93a | 184 | *ret = TAKE_PTR(t); |
3d7415f4 LP |
185 | |
186 | return 0; | |
187 | } | |
188 | ||
1d7579c4 LP |
189 | static double transfer_percent_as_double(Transfer *t) { |
190 | assert(t); | |
191 | ||
f5fbe71d | 192 | if (t->progress_percent == UINT_MAX) |
1d7579c4 LP |
193 | return -DBL_MAX; |
194 | ||
195 | return (double) t->progress_percent / 100.0; | |
196 | } | |
197 | ||
3d7415f4 LP |
198 | static void transfer_send_log_line(Transfer *t, const char *line) { |
199 | int r, priority = LOG_INFO; | |
200 | ||
201 | assert(t); | |
202 | assert(line); | |
203 | ||
204 | syslog_parse_priority(&line, &priority, true); | |
205 | ||
09d46cfd | 206 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
207 | |
208 | r = sd_bus_emit_signal( | |
209 | t->manager->bus, | |
210 | t->object_path, | |
211 | "org.freedesktop.import1.Transfer", | |
212 | "LogMessage", | |
213 | "us", | |
214 | priority, | |
215 | line); | |
216 | if (r < 0) | |
5b6299ee | 217 | log_warning_errno(r, "Cannot emit log message signal, ignoring: %m"); |
3d7415f4 LP |
218 | } |
219 | ||
220 | static void transfer_send_logs(Transfer *t, bool flush) { | |
221 | assert(t); | |
222 | ||
223 | /* Try to send out all log messages, if we can. But if we | |
224 | * can't we remove the messages from the buffer, but don't | |
225 | * fail */ | |
226 | ||
227 | while (t->log_message_size > 0) { | |
228 | _cleanup_free_ char *n = NULL; | |
229 | char *e; | |
230 | ||
231 | if (t->log_message_size >= sizeof(t->log_message)) | |
232 | e = t->log_message + sizeof(t->log_message); | |
233 | else { | |
234 | char *a, *b; | |
235 | ||
236 | a = memchr(t->log_message, 0, t->log_message_size); | |
237 | b = memchr(t->log_message, '\n', t->log_message_size); | |
238 | ||
239 | if (a && b) | |
240 | e = a < b ? a : b; | |
241 | else if (a) | |
242 | e = a; | |
243 | else | |
244 | e = b; | |
245 | } | |
246 | ||
247 | if (!e) { | |
248 | if (!flush) | |
249 | return; | |
250 | ||
251 | e = t->log_message + t->log_message_size; | |
252 | } | |
253 | ||
254 | n = strndup(t->log_message, e - t->log_message); | |
255 | ||
256 | /* Skip over NUL and newlines */ | |
ed0cb346 | 257 | while (e < t->log_message + t->log_message_size && IN_SET(*e, 0, '\n')) |
3d7415f4 LP |
258 | e++; |
259 | ||
260 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
261 | t->log_message_size -= e - t->log_message; | |
262 | ||
263 | if (!n) { | |
264 | log_oom(); | |
265 | continue; | |
266 | } | |
267 | ||
268 | if (isempty(n)) | |
269 | continue; | |
270 | ||
271 | transfer_send_log_line(t, n); | |
272 | } | |
273 | } | |
274 | ||
275 | static int transfer_finalize(Transfer *t, bool success) { | |
276 | int r; | |
277 | ||
278 | assert(t); | |
279 | ||
280 | transfer_send_logs(t, true); | |
281 | ||
282 | r = sd_bus_emit_signal( | |
283 | t->manager->bus, | |
284 | "/org/freedesktop/import1", | |
285 | "org.freedesktop.import1.Manager", | |
286 | "TransferRemoved", | |
287 | "uos", | |
288 | t->id, | |
289 | t->object_path, | |
290 | success ? "done" : | |
291 | t->n_canceled > 0 ? "canceled" : "failed"); | |
292 | ||
293 | if (r < 0) | |
294 | log_error_errno(r, "Cannot emit message: %m"); | |
295 | ||
296 | transfer_unref(t); | |
297 | return 0; | |
298 | } | |
299 | ||
300 | static int transfer_cancel(Transfer *t) { | |
301 | int r; | |
302 | ||
303 | assert(t); | |
304 | ||
09232207 | 305 | r = pidref_kill_and_sigcont(&t->pidref, t->n_canceled < 3 ? SIGTERM : SIGKILL); |
3d7415f4 LP |
306 | if (r < 0) |
307 | return r; | |
308 | ||
309 | t->n_canceled++; | |
310 | return 0; | |
311 | } | |
312 | ||
313 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
99534007 | 314 | Transfer *t = ASSERT_PTR(userdata); |
3d7415f4 LP |
315 | bool success = false; |
316 | ||
317 | assert(s); | |
3d7415f4 LP |
318 | |
319 | if (si->si_code == CLD_EXITED) { | |
320 | if (si->si_status != 0) | |
4b71c27b | 321 | log_error("Transfer process failed with exit code %i.", si->si_status); |
3d7415f4 | 322 | else { |
4b71c27b | 323 | log_debug("Transfer process succeeded."); |
3d7415f4 LP |
324 | success = true; |
325 | } | |
326 | ||
3742095b | 327 | } else if (IN_SET(si->si_code, CLD_KILLED, CLD_DUMPED)) |
4b71c27b | 328 | log_error("Transfer process terminated by signal %s.", signal_to_string(si->si_status)); |
3d7415f4 | 329 | else |
4b71c27b | 330 | log_error("Transfer process failed due to unknown reason."); |
3d7415f4 | 331 | |
09232207 | 332 | pidref_done(&t->pidref); |
3d7415f4 LP |
333 | |
334 | return transfer_finalize(t, success); | |
335 | } | |
336 | ||
337 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
99534007 | 338 | Transfer *t = ASSERT_PTR(userdata); |
3d7415f4 LP |
339 | ssize_t l; |
340 | ||
341 | assert(s); | |
3d7415f4 LP |
342 | |
343 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
b0325c99 LP |
344 | if (l < 0) |
345 | log_error_errno(errno, "Failed to read log message: %m"); | |
3d7415f4 LP |
346 | if (l <= 0) { |
347 | /* EOF/read error. We just close the pipe here, and | |
348 | * close the watch, waiting for the SIGCHLD to arrive, | |
349 | * before we do anything else. */ | |
3d7415f4 LP |
350 | t->log_event_source = sd_event_source_unref(t->log_event_source); |
351 | return 0; | |
352 | } | |
353 | ||
354 | t->log_message_size += l; | |
355 | ||
356 | transfer_send_logs(t, false); | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
361 | static int transfer_start(Transfer *t) { | |
71136404 | 362 | _cleanup_close_pair_ int pipefd[2] = EBADF_PAIR; |
3d7415f4 LP |
363 | int r; |
364 | ||
365 | assert(t); | |
09232207 | 366 | assert(!pidref_is_set(&t->pidref)); |
3d7415f4 LP |
367 | |
368 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
369 | return -errno; | |
370 | ||
09232207 LP |
371 | r = pidref_safe_fork_full( |
372 | "(sd-transfer)", | |
373 | (int[]) { t->stdin_fd, t->stdout_fd < 0 ? pipefd[1] : t->stdout_fd, pipefd[1] }, | |
374 | /* except_fds= */ NULL, /* n_except_fds= */ 0, | |
375 | FORK_RESET_SIGNALS|FORK_CLOSE_ALL_FDS|FORK_DEATHSIG_SIGTERM|FORK_REARRANGE_STDIO, | |
376 | &t->pidref); | |
4c253ed1 LP |
377 | if (r < 0) |
378 | return r; | |
379 | if (r == 0) { | |
3d7415f4 | 380 | const char *cmd[] = { |
1d7579c4 | 381 | NULL, /* systemd-import, systemd-import-fs, systemd-export or systemd-pull */ |
b43d75c3 | 382 | NULL, /* tar, raw */ |
b6e676ce | 383 | NULL, /* --verify= */ |
3d7415f4 LP |
384 | NULL, /* verify argument */ |
385 | NULL, /* maybe --force */ | |
b6e676ce | 386 | NULL, /* maybe --read-only */ |
587fec42 LP |
387 | NULL, /* if so: the actual URL */ |
388 | NULL, /* maybe --format= */ | |
389 | NULL, /* if so: the actual format */ | |
3d7415f4 LP |
390 | NULL, /* remote */ |
391 | NULL, /* local */ | |
392 | NULL | |
393 | }; | |
b37ec1e7 | 394 | size_t k = 0; |
3d7415f4 LP |
395 | |
396 | /* Child */ | |
397 | ||
df8067ef ZJS |
398 | if (setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1) < 0 || |
399 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1) < 0) { | |
400 | log_error_errno(errno, "setenv() failed: %m"); | |
401 | _exit(EXIT_FAILURE); | |
402 | } | |
3d7415f4 | 403 | |
d7548908 YW |
404 | r = setenv_systemd_exec_pid(true); |
405 | if (r < 0) | |
406 | log_warning_errno(r, "Failed to update $SYSTEMD_EXEC_PID, ignoring: %m"); | |
407 | ||
1d7579c4 LP |
408 | switch (t->type) { |
409 | ||
410 | case TRANSFER_IMPORT_TAR: | |
411 | case TRANSFER_IMPORT_RAW: | |
b6e676ce | 412 | cmd[k++] = SYSTEMD_IMPORT_PATH; |
1d7579c4 LP |
413 | break; |
414 | ||
415 | case TRANSFER_IMPORT_FS: | |
416 | cmd[k++] = SYSTEMD_IMPORT_FS_PATH; | |
417 | break; | |
418 | ||
419 | case TRANSFER_EXPORT_TAR: | |
420 | case TRANSFER_EXPORT_RAW: | |
587fec42 | 421 | cmd[k++] = SYSTEMD_EXPORT_PATH; |
1d7579c4 LP |
422 | break; |
423 | ||
424 | case TRANSFER_PULL_TAR: | |
425 | case TRANSFER_PULL_RAW: | |
b6e676ce | 426 | cmd[k++] = SYSTEMD_PULL_PATH; |
1d7579c4 LP |
427 | break; |
428 | ||
429 | default: | |
04499a70 | 430 | assert_not_reached(); |
1d7579c4 LP |
431 | } |
432 | ||
433 | switch (t->type) { | |
b6e676ce | 434 | |
1d7579c4 LP |
435 | case TRANSFER_IMPORT_TAR: |
436 | case TRANSFER_EXPORT_TAR: | |
437 | case TRANSFER_PULL_TAR: | |
b6e676ce | 438 | cmd[k++] = "tar"; |
1d7579c4 LP |
439 | break; |
440 | ||
441 | case TRANSFER_IMPORT_RAW: | |
442 | case TRANSFER_EXPORT_RAW: | |
443 | case TRANSFER_PULL_RAW: | |
b43d75c3 | 444 | cmd[k++] = "raw"; |
1d7579c4 LP |
445 | break; |
446 | ||
447 | case TRANSFER_IMPORT_FS: | |
448 | cmd[k++] = "run"; | |
449 | break; | |
450 | ||
451 | default: | |
452 | break; | |
453 | } | |
b6e676ce LP |
454 | |
455 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
456 | cmd[k++] = "--verify"; | |
457 | cmd[k++] = import_verify_to_string(t->verify); | |
458 | } | |
459 | ||
3d7415f4 LP |
460 | if (t->force_local) |
461 | cmd[k++] = "--force"; | |
b6e676ce LP |
462 | if (t->read_only) |
463 | cmd[k++] = "--read-only"; | |
3d7415f4 | 464 | |
587fec42 LP |
465 | if (t->format) { |
466 | cmd[k++] = "--format"; | |
467 | cmd[k++] = t->format; | |
468 | } | |
469 | ||
470 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
471 | if (t->remote) | |
472 | cmd[k++] = t->remote; | |
473 | else | |
474 | cmd[k++] = "-"; | |
475 | } | |
b6e676ce | 476 | |
3d7415f4 LP |
477 | if (t->local) |
478 | cmd[k++] = t->local; | |
479 | cmd[k] = NULL; | |
480 | ||
a0afd4e7 LP |
481 | assert(k < ELEMENTSOF(cmd)); |
482 | ||
483 | r = invoke_callout_binary(cmd[0], (char * const *) cmd); | |
484 | log_error_errno(r, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
485 | _exit(EXIT_FAILURE); |
486 | } | |
487 | ||
488 | pipefd[1] = safe_close(pipefd[1]); | |
c10d6bdb | 489 | t->log_fd = TAKE_FD(pipefd[0]); |
3d7415f4 | 490 | |
b6e676ce LP |
491 | t->stdin_fd = safe_close(t->stdin_fd); |
492 | ||
09232207 LP |
493 | r = event_add_child_pidref( |
494 | t->manager->event, | |
495 | &t->pid_event_source, | |
496 | &t->pidref, | |
497 | WEXITED, | |
498 | transfer_on_pid, | |
499 | t); | |
3d7415f4 LP |
500 | if (r < 0) |
501 | return r; | |
502 | ||
ab09bf90 ZJS |
503 | r = sd_event_add_io(t->manager->event, &t->log_event_source, |
504 | t->log_fd, EPOLLIN, transfer_on_log, t); | |
3d7415f4 LP |
505 | if (r < 0) |
506 | return r; | |
507 | ||
508 | /* Make sure always process logging before SIGCHLD */ | |
509 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
510 | if (r < 0) | |
511 | return r; | |
512 | ||
513 | r = sd_bus_emit_signal( | |
514 | t->manager->bus, | |
515 | "/org/freedesktop/import1", | |
516 | "org.freedesktop.import1.Manager", | |
517 | "TransferNew", | |
518 | "uo", | |
519 | t->id, | |
520 | t->object_path); | |
521 | if (r < 0) | |
522 | return r; | |
523 | ||
524 | return 0; | |
525 | } | |
526 | ||
527 | static Manager *manager_unref(Manager *m) { | |
528 | Transfer *t; | |
529 | ||
530 | if (!m) | |
531 | return NULL; | |
532 | ||
7079cfef LP |
533 | sd_event_source_unref(m->notify_event_source); |
534 | safe_close(m->notify_fd); | |
535 | ||
3d7415f4 LP |
536 | while ((t = hashmap_first(m->transfers))) |
537 | transfer_unref(t); | |
538 | ||
539 | hashmap_free(m->transfers); | |
540 | ||
2a1ffd3e | 541 | hashmap_free(m->polkit_registry); |
3d7415f4 | 542 | |
03976f7b | 543 | m->bus = sd_bus_flush_close_unref(m->bus); |
3d7415f4 LP |
544 | sd_event_unref(m->event); |
545 | ||
6b430fdb | 546 | return mfree(m); |
3d7415f4 LP |
547 | } |
548 | ||
549 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
550 | ||
7079cfef LP |
551 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
552 | ||
553 | char buf[NOTIFY_BUFFER_MAX+1]; | |
554 | struct iovec iovec = { | |
555 | .iov_base = buf, | |
556 | .iov_len = sizeof(buf)-1, | |
557 | }; | |
fb29cdbe LP |
558 | CMSG_BUFFER_TYPE(CMSG_SPACE(sizeof(struct ucred)) + |
559 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)) control; | |
7079cfef LP |
560 | struct msghdr msghdr = { |
561 | .msg_iov = &iovec, | |
562 | .msg_iovlen = 1, | |
563 | .msg_control = &control, | |
564 | .msg_controllen = sizeof(control), | |
565 | }; | |
371d72e0 | 566 | struct ucred *ucred; |
7079cfef | 567 | Manager *m = userdata; |
7079cfef | 568 | Transfer *t; |
7079cfef | 569 | ssize_t n; |
90f5f355 | 570 | char *p; |
7079cfef LP |
571 | int r; |
572 | ||
3691bcf3 | 573 | n = recvmsg_safe(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); |
8add30a0 YW |
574 | if (n < 0) { |
575 | if (ERRNO_IS_TRANSIENT(n)) | |
576 | return 0; | |
3691bcf3 | 577 | return (int) n; |
8add30a0 | 578 | } |
7079cfef | 579 | |
1c8da044 LP |
580 | cmsg_close_all(&msghdr); |
581 | ||
7079cfef LP |
582 | if (msghdr.msg_flags & MSG_TRUNC) { |
583 | log_warning("Got overly long notification datagram, ignoring."); | |
584 | return 0; | |
585 | } | |
586 | ||
371d72e0 | 587 | ucred = CMSG_FIND_DATA(&msghdr, SOL_SOCKET, SCM_CREDENTIALS, struct ucred); |
7079cfef LP |
588 | if (!ucred || ucred->pid <= 0) { |
589 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
590 | return 0; | |
591 | } | |
592 | ||
90e74a66 | 593 | HASHMAP_FOREACH(t, m->transfers) |
09232207 | 594 | if (ucred->pid == t->pidref.pid) |
7079cfef LP |
595 | break; |
596 | ||
597 | if (!t) { | |
598 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
599 | return 0; | |
600 | } | |
601 | ||
602 | buf[n] = 0; | |
603 | ||
50ed5cbf LP |
604 | p = find_line_startswith(buf, "X_IMPORT_PROGRESS="); |
605 | if (!p) | |
606 | return 0; | |
7079cfef | 607 | |
90f5f355 | 608 | truncate_nl(p); |
7079cfef | 609 | |
5a8582fb LP |
610 | r = parse_percent(p); |
611 | if (r < 0) { | |
a986de68 | 612 | log_warning("Got invalid percent value '%s', ignoring.", p); |
7079cfef LP |
613 | return 0; |
614 | } | |
615 | ||
5a8582fb | 616 | t->progress_percent = (unsigned) r; |
7079cfef | 617 | |
5a8582fb | 618 | log_debug("Got percentage from client: %u%%", t->progress_percent); |
7079cfef LP |
619 | return 0; |
620 | } | |
621 | ||
3d7415f4 LP |
622 | static int manager_new(Manager **ret) { |
623 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
624 | static const union sockaddr_union sa = { |
625 | .un.sun_family = AF_UNIX, | |
626 | .un.sun_path = "/run/systemd/import/notify", | |
627 | }; | |
3d7415f4 LP |
628 | int r; |
629 | ||
630 | assert(ret); | |
631 | ||
c7779a61 | 632 | m = new(Manager, 1); |
3d7415f4 LP |
633 | if (!m) |
634 | return -ENOMEM; | |
635 | ||
c7779a61 IS |
636 | *m = (Manager) { |
637 | .use_btrfs_subvol = true, | |
638 | .use_btrfs_quota = true, | |
639 | }; | |
640 | ||
3d7415f4 LP |
641 | r = sd_event_default(&m->event); |
642 | if (r < 0) | |
643 | return r; | |
644 | ||
82fa9f28 LP |
645 | (void) sd_event_set_watchdog(m->event, true); |
646 | ||
647 | r = sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL); | |
648 | if (r < 0) | |
649 | return r; | |
650 | ||
651 | r = sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL); | |
652 | if (r < 0) | |
653 | return r; | |
654 | ||
655 | r = sd_event_add_signal(m->event, NULL, SIGRTMIN+18, sigrtmin18_handler, NULL); | |
656 | if (r < 0) | |
657 | return r; | |
658 | ||
659 | r = sd_event_add_memory_pressure(m->event, NULL, NULL, NULL); | |
660 | if (r < 0) | |
661 | log_debug_errno(r, "Failed allocate memory pressure event source, ignoring: %m"); | |
3d7415f4 LP |
662 | |
663 | r = sd_bus_default_system(&m->bus); | |
664 | if (r < 0) | |
665 | return r; | |
666 | ||
7079cfef LP |
667 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
668 | if (m->notify_fd < 0) | |
669 | return -errno; | |
670 | ||
671 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
155b6876 | 672 | (void) sockaddr_un_unlink(&sa.un); |
7079cfef | 673 | |
fc2fffe7 | 674 | if (bind(m->notify_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) |
7079cfef LP |
675 | return -errno; |
676 | ||
2ff48e98 LP |
677 | r = setsockopt_int(m->notify_fd, SOL_SOCKET, SO_PASSCRED, true); |
678 | if (r < 0) | |
679 | return r; | |
7079cfef | 680 | |
ab09bf90 ZJS |
681 | r = sd_event_add_io(m->event, &m->notify_event_source, |
682 | m->notify_fd, EPOLLIN, manager_on_notify, m); | |
7079cfef LP |
683 | if (r < 0) |
684 | return r; | |
685 | ||
1cc6c93a | 686 | *ret = TAKE_PTR(m); |
3d7415f4 LP |
687 | |
688 | return 0; | |
689 | } | |
690 | ||
b43d75c3 | 691 | static Transfer *manager_find(Manager *m, TransferType type, const char *remote) { |
3d7415f4 | 692 | Transfer *t; |
3d7415f4 LP |
693 | |
694 | assert(m); | |
695 | assert(type >= 0); | |
696 | assert(type < _TRANSFER_TYPE_MAX); | |
697 | ||
90e74a66 | 698 | HASHMAP_FOREACH(t, m->transfers) |
b0325c99 | 699 | if (t->type == type && streq_ptr(t->remote, remote)) |
3d7415f4 | 700 | return t; |
3d7415f4 LP |
701 | |
702 | return NULL; | |
703 | } | |
704 | ||
19070062 | 705 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
b6e676ce LP |
706 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
707 | int fd, force, read_only, r; | |
708 | const char *local, *object; | |
99534007 | 709 | Manager *m = ASSERT_PTR(userdata); |
b6e676ce | 710 | TransferType type; |
1209ef94 | 711 | struct stat st; |
b6e676ce LP |
712 | uint32_t id; |
713 | ||
19070062 | 714 | assert(msg); |
19070062 | 715 | |
b6e676ce LP |
716 | r = bus_verify_polkit_async( |
717 | msg, | |
b6e676ce | 718 | "org.freedesktop.import1.import", |
7b36fb9f | 719 | /* details= */ NULL, |
b6e676ce LP |
720 | &m->polkit_registry, |
721 | error); | |
722 | if (r < 0) | |
723 | return r; | |
724 | if (r == 0) | |
725 | return 1; /* Will call us back */ | |
726 | ||
727 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
728 | if (r < 0) | |
729 | return r; | |
730 | ||
1209ef94 AZ |
731 | if (fstat(fd, &st) < 0) |
732 | return -errno; | |
733 | ||
734 | if (!S_ISREG(st.st_mode) && !S_ISFIFO(st.st_mode)) | |
735 | return -EINVAL; | |
176a05c2 | 736 | |
52ef5dd7 | 737 | if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
738 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
739 | "Local name %s is invalid", local); | |
b6e676ce | 740 | |
c7779a61 | 741 | r = setup_machine_directory(error, m->use_btrfs_subvol, m->use_btrfs_quota); |
b6e676ce LP |
742 | if (r < 0) |
743 | return r; | |
744 | ||
ab09bf90 ZJS |
745 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? |
746 | TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
b6e676ce LP |
747 | |
748 | r = transfer_new(m, &t); | |
749 | if (r < 0) | |
750 | return r; | |
751 | ||
752 | t->type = type; | |
753 | t->force_local = force; | |
754 | t->read_only = read_only; | |
755 | ||
756 | t->local = strdup(local); | |
757 | if (!t->local) | |
758 | return -ENOMEM; | |
759 | ||
760 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
761 | if (t->stdin_fd < 0) | |
762 | return -errno; | |
763 | ||
764 | r = transfer_start(t); | |
765 | if (r < 0) | |
766 | return r; | |
767 | ||
768 | object = t->object_path; | |
769 | id = t->id; | |
770 | t = NULL; | |
771 | ||
772 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
773 | } | |
774 | ||
1d7579c4 LP |
775 | static int method_import_fs(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
776 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
777 | int fd, force, read_only, r; | |
778 | const char *local, *object; | |
99534007 | 779 | Manager *m = ASSERT_PTR(userdata); |
1d7579c4 LP |
780 | uint32_t id; |
781 | ||
782 | assert(msg); | |
1d7579c4 LP |
783 | |
784 | r = bus_verify_polkit_async( | |
785 | msg, | |
1d7579c4 | 786 | "org.freedesktop.import1.import", |
7b36fb9f | 787 | /* details= */ NULL, |
1d7579c4 LP |
788 | &m->polkit_registry, |
789 | error); | |
790 | if (r < 0) | |
791 | return r; | |
792 | if (r == 0) | |
793 | return 1; /* Will call us back */ | |
794 | ||
795 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
796 | if (r < 0) | |
797 | return r; | |
798 | ||
176a05c2 LP |
799 | r = fd_verify_directory(fd); |
800 | if (r < 0) | |
801 | return r; | |
802 | ||
52ef5dd7 | 803 | if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
804 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
805 | "Local name %s is invalid", local); | |
1d7579c4 | 806 | |
c7779a61 | 807 | r = setup_machine_directory(error, m->use_btrfs_subvol, m->use_btrfs_quota); |
1d7579c4 LP |
808 | if (r < 0) |
809 | return r; | |
810 | ||
811 | r = transfer_new(m, &t); | |
812 | if (r < 0) | |
813 | return r; | |
814 | ||
815 | t->type = TRANSFER_IMPORT_FS; | |
816 | t->force_local = force; | |
817 | t->read_only = read_only; | |
818 | ||
819 | t->local = strdup(local); | |
820 | if (!t->local) | |
821 | return -ENOMEM; | |
822 | ||
823 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
824 | if (t->stdin_fd < 0) | |
825 | return -errno; | |
826 | ||
827 | r = transfer_start(t); | |
828 | if (r < 0) | |
829 | return r; | |
830 | ||
831 | object = t->object_path; | |
832 | id = t->id; | |
833 | t = NULL; | |
834 | ||
835 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
836 | } | |
837 | ||
19070062 | 838 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
587fec42 LP |
839 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
840 | int fd, r; | |
841 | const char *local, *object, *format; | |
99534007 | 842 | Manager *m = ASSERT_PTR(userdata); |
587fec42 | 843 | TransferType type; |
1209ef94 | 844 | struct stat st; |
587fec42 LP |
845 | uint32_t id; |
846 | ||
19070062 | 847 | assert(msg); |
19070062 | 848 | |
587fec42 LP |
849 | r = bus_verify_polkit_async( |
850 | msg, | |
587fec42 | 851 | "org.freedesktop.import1.export", |
7b36fb9f | 852 | /* details= */ NULL, |
587fec42 LP |
853 | &m->polkit_registry, |
854 | error); | |
855 | if (r < 0) | |
856 | return r; | |
857 | if (r == 0) | |
858 | return 1; /* Will call us back */ | |
859 | ||
860 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
861 | if (r < 0) | |
862 | return r; | |
863 | ||
52ef5dd7 | 864 | if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
865 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
866 | "Local name %s is invalid", local); | |
587fec42 | 867 | |
1209ef94 AZ |
868 | if (fstat(fd, &st) < 0) |
869 | return -errno; | |
870 | ||
871 | if (!S_ISREG(st.st_mode) && !S_ISFIFO(st.st_mode)) | |
872 | return -EINVAL; | |
176a05c2 | 873 | |
ab09bf90 ZJS |
874 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? |
875 | TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
587fec42 LP |
876 | |
877 | r = transfer_new(m, &t); | |
878 | if (r < 0) | |
879 | return r; | |
880 | ||
881 | t->type = type; | |
882 | ||
883 | if (!isempty(format)) { | |
884 | t->format = strdup(format); | |
885 | if (!t->format) | |
886 | return -ENOMEM; | |
887 | } | |
888 | ||
889 | t->local = strdup(local); | |
890 | if (!t->local) | |
891 | return -ENOMEM; | |
892 | ||
893 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
894 | if (t->stdout_fd < 0) | |
895 | return -errno; | |
896 | ||
897 | r = transfer_start(t); | |
898 | if (r < 0) | |
899 | return r; | |
900 | ||
901 | object = t->object_path; | |
902 | id = t->id; | |
903 | t = NULL; | |
904 | ||
905 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
906 | } | |
907 | ||
19070062 | 908 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
909 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
910 | const char *remote, *local, *verify, *object; | |
99534007 | 911 | Manager *m = ASSERT_PTR(userdata); |
3d7415f4 LP |
912 | ImportVerify v; |
913 | TransferType type; | |
914 | int force, r; | |
915 | uint32_t id; | |
916 | ||
3d7415f4 | 917 | assert(msg); |
3d7415f4 LP |
918 | |
919 | r = bus_verify_polkit_async( | |
920 | msg, | |
3d7415f4 | 921 | "org.freedesktop.import1.pull", |
7b36fb9f | 922 | /* details= */ NULL, |
3d7415f4 LP |
923 | &m->polkit_registry, |
924 | error); | |
925 | if (r < 0) | |
926 | return r; | |
927 | if (r == 0) | |
928 | return 1; /* Will call us back */ | |
929 | ||
930 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
931 | if (r < 0) | |
932 | return r; | |
933 | ||
c456862f | 934 | if (!http_url_is_valid(remote) && !file_url_is_valid(remote)) |
ab09bf90 ZJS |
935 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
936 | "URL %s is invalid", remote); | |
3d7415f4 LP |
937 | |
938 | if (isempty(local)) | |
939 | local = NULL; | |
52ef5dd7 | 940 | else if (!hostname_is_valid(local, 0)) |
ab09bf90 ZJS |
941 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
942 | "Local name %s is invalid", local); | |
3d7415f4 LP |
943 | |
944 | if (isempty(verify)) | |
945 | v = IMPORT_VERIFY_SIGNATURE; | |
946 | else | |
947 | v = import_verify_from_string(verify); | |
948 | if (v < 0) | |
ab09bf90 ZJS |
949 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
950 | "Unknown verification mode %s", verify); | |
3d7415f4 | 951 | |
c7779a61 | 952 | r = setup_machine_directory(error, m->use_btrfs_subvol, m->use_btrfs_quota); |
ce06fdfb LP |
953 | if (r < 0) |
954 | return r; | |
955 | ||
ab09bf90 ZJS |
956 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? |
957 | TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; | |
3d7415f4 | 958 | |
b43d75c3 | 959 | if (manager_find(m, type, remote)) |
ab09bf90 ZJS |
960 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, |
961 | "Transfer for %s already in progress.", remote); | |
3d7415f4 LP |
962 | |
963 | r = transfer_new(m, &t); | |
964 | if (r < 0) | |
965 | return r; | |
966 | ||
967 | t->type = type; | |
968 | t->verify = v; | |
969 | t->force_local = force; | |
970 | ||
971 | t->remote = strdup(remote); | |
972 | if (!t->remote) | |
973 | return -ENOMEM; | |
974 | ||
b6e676ce LP |
975 | if (local) { |
976 | t->local = strdup(local); | |
977 | if (!t->local) | |
978 | return -ENOMEM; | |
979 | } | |
3d7415f4 LP |
980 | |
981 | r = transfer_start(t); | |
982 | if (r < 0) | |
983 | return r; | |
984 | ||
985 | object = t->object_path; | |
986 | id = t->id; | |
987 | t = NULL; | |
988 | ||
989 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
990 | } | |
991 | ||
19070062 | 992 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
4afd3348 | 993 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
99534007 | 994 | Manager *m = ASSERT_PTR(userdata); |
3d7415f4 | 995 | Transfer *t; |
3d7415f4 LP |
996 | int r; |
997 | ||
3d7415f4 | 998 | assert(msg); |
3d7415f4 LP |
999 | |
1000 | r = sd_bus_message_new_method_return(msg, &reply); | |
1001 | if (r < 0) | |
1002 | return r; | |
1003 | ||
7079cfef | 1004 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
1005 | if (r < 0) |
1006 | return r; | |
1007 | ||
90e74a66 | 1008 | HASHMAP_FOREACH(t, m->transfers) { |
3d7415f4 LP |
1009 | |
1010 | r = sd_bus_message_append( | |
1011 | reply, | |
7079cfef | 1012 | "(usssdo)", |
3d7415f4 LP |
1013 | t->id, |
1014 | transfer_type_to_string(t->type), | |
1015 | t->remote, | |
1016 | t->local, | |
1d7579c4 | 1017 | transfer_percent_as_double(t), |
3d7415f4 LP |
1018 | t->object_path); |
1019 | if (r < 0) | |
1020 | return r; | |
1021 | } | |
1022 | ||
1023 | r = sd_bus_message_close_container(reply); | |
1024 | if (r < 0) | |
1025 | return r; | |
1026 | ||
9030ca46 | 1027 | return sd_bus_send(NULL, reply, NULL); |
3d7415f4 LP |
1028 | } |
1029 | ||
19070062 | 1030 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
99534007 | 1031 | Transfer *t = ASSERT_PTR(userdata); |
3d7415f4 LP |
1032 | int r; |
1033 | ||
3d7415f4 | 1034 | assert(msg); |
3d7415f4 LP |
1035 | |
1036 | r = bus_verify_polkit_async( | |
1037 | msg, | |
3d7415f4 | 1038 | "org.freedesktop.import1.pull", |
7b36fb9f | 1039 | /* details= */ NULL, |
3d7415f4 LP |
1040 | &t->manager->polkit_registry, |
1041 | error); | |
1042 | if (r < 0) | |
1043 | return r; | |
1044 | if (r == 0) | |
1045 | return 1; /* Will call us back */ | |
1046 | ||
1047 | r = transfer_cancel(t); | |
1048 | if (r < 0) | |
1049 | return r; | |
1050 | ||
1051 | return sd_bus_reply_method_return(msg, NULL); | |
1052 | } | |
1053 | ||
19070062 | 1054 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
99534007 | 1055 | Manager *m = ASSERT_PTR(userdata); |
3d7415f4 LP |
1056 | Transfer *t; |
1057 | uint32_t id; | |
1058 | int r; | |
1059 | ||
3d7415f4 | 1060 | assert(msg); |
3d7415f4 LP |
1061 | |
1062 | r = bus_verify_polkit_async( | |
1063 | msg, | |
3d7415f4 | 1064 | "org.freedesktop.import1.pull", |
7b36fb9f | 1065 | /* details= */ NULL, |
3d7415f4 LP |
1066 | &m->polkit_registry, |
1067 | error); | |
1068 | if (r < 0) | |
1069 | return r; | |
1070 | if (r == 0) | |
1071 | return 1; /* Will call us back */ | |
1072 | ||
1073 | r = sd_bus_message_read(msg, "u", &id); | |
1074 | if (r < 0) | |
1075 | return r; | |
1076 | if (id <= 0) | |
1b09b81c | 1077 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); |
3d7415f4 LP |
1078 | |
1079 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1080 | if (!t) | |
09d46cfd | 1081 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1082 | |
1083 | r = transfer_cancel(t); | |
1084 | if (r < 0) | |
1085 | return r; | |
1086 | ||
1087 | return sd_bus_reply_method_return(msg, NULL); | |
1088 | } | |
1089 | ||
7079cfef LP |
1090 | static int property_get_progress( |
1091 | sd_bus *bus, | |
1092 | const char *path, | |
1093 | const char *interface, | |
1094 | const char *property, | |
1095 | sd_bus_message *reply, | |
1096 | void *userdata, | |
1097 | sd_bus_error *error) { | |
1098 | ||
99534007 | 1099 | Transfer *t = ASSERT_PTR(userdata); |
7079cfef LP |
1100 | |
1101 | assert(bus); | |
1102 | assert(reply); | |
7079cfef | 1103 | |
1d7579c4 | 1104 | return sd_bus_message_append(reply, "d", transfer_percent_as_double(t)); |
7079cfef LP |
1105 | } |
1106 | ||
3d7415f4 LP |
1107 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1108 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1109 | ||
a3b7cf50 ZJS |
1110 | static int transfer_object_find( |
1111 | sd_bus *bus, | |
1112 | const char *path, | |
1113 | const char *interface, | |
1114 | void *userdata, | |
1115 | void **found, | |
1116 | sd_bus_error *error) { | |
1117 | ||
99534007 | 1118 | Manager *m = ASSERT_PTR(userdata); |
a3b7cf50 ZJS |
1119 | Transfer *t; |
1120 | const char *p; | |
1121 | uint32_t id; | |
1122 | int r; | |
1123 | ||
1124 | assert(bus); | |
1125 | assert(path); | |
1126 | assert(interface); | |
1127 | assert(found); | |
a3b7cf50 ZJS |
1128 | |
1129 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1130 | if (!p) | |
1131 | return 0; | |
1132 | ||
1133 | r = safe_atou32(p, &id); | |
1134 | if (r < 0 || id == 0) | |
1135 | return 0; | |
1136 | ||
1137 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1138 | if (!t) | |
1139 | return 0; | |
1140 | ||
1141 | *found = t; | |
1142 | return 1; | |
1143 | } | |
1144 | ||
1145 | static int transfer_node_enumerator( | |
1146 | sd_bus *bus, | |
1147 | const char *path, | |
1148 | void *userdata, | |
1149 | char ***nodes, | |
1150 | sd_bus_error *error) { | |
1151 | ||
1152 | _cleanup_strv_free_ char **l = NULL; | |
1153 | Manager *m = userdata; | |
1154 | Transfer *t; | |
1155 | unsigned k = 0; | |
a3b7cf50 ZJS |
1156 | |
1157 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1158 | if (!l) | |
1159 | return -ENOMEM; | |
1160 | ||
90e74a66 | 1161 | HASHMAP_FOREACH(t, m->transfers) { |
a3b7cf50 ZJS |
1162 | |
1163 | l[k] = strdup(t->object_path); | |
1164 | if (!l[k]) | |
1165 | return -ENOMEM; | |
1166 | ||
1167 | k++; | |
1168 | } | |
1169 | ||
1170 | *nodes = TAKE_PTR(l); | |
1171 | ||
1172 | return 1; | |
1173 | } | |
1174 | ||
3d7415f4 LP |
1175 | static const sd_bus_vtable transfer_vtable[] = { |
1176 | SD_BUS_VTABLE_START(0), | |
956ecd3c | 1177 | |
3d7415f4 LP |
1178 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), |
1179 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1180 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1181 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1182 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1183 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
956ecd3c | 1184 | |
3d7415f4 | 1185 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
956ecd3c ZJS |
1186 | |
1187 | SD_BUS_SIGNAL_WITH_NAMES("LogMessage", | |
1188 | "us", | |
1189 | SD_BUS_PARAM(priority) | |
1190 | SD_BUS_PARAM(line), | |
1191 | 0), | |
1192 | ||
3d7415f4 LP |
1193 | SD_BUS_VTABLE_END, |
1194 | }; | |
1195 | ||
a3b7cf50 ZJS |
1196 | static const BusObjectImplementation transfer_object = { |
1197 | "/org/freedesktop/import1/transfer", | |
1198 | "org.freedesktop.import1.Transfer", | |
1199 | .fallback_vtables = BUS_FALLBACK_VTABLES({transfer_vtable, transfer_object_find}), | |
1200 | .node_enumerator = transfer_node_enumerator, | |
1201 | }; | |
1202 | ||
3d7415f4 LP |
1203 | static const sd_bus_vtable manager_vtable[] = { |
1204 | SD_BUS_VTABLE_START(0), | |
956ecd3c ZJS |
1205 | |
1206 | SD_BUS_METHOD_WITH_NAMES("ImportTar", | |
1207 | "hsbb", | |
1208 | SD_BUS_PARAM(fd) | |
1209 | SD_BUS_PARAM(local_name) | |
1210 | SD_BUS_PARAM(force) | |
1211 | SD_BUS_PARAM(read_only), | |
1212 | "uo", | |
1213 | SD_BUS_PARAM(transfer_id) | |
1214 | SD_BUS_PARAM(transfer_path), | |
1215 | method_import_tar_or_raw, | |
1216 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1217 | SD_BUS_METHOD_WITH_NAMES("ImportRaw", | |
1218 | "hsbb", | |
1219 | SD_BUS_PARAM(fd) | |
1220 | SD_BUS_PARAM(local_name) | |
1221 | SD_BUS_PARAM(force) | |
1222 | SD_BUS_PARAM(read_only), | |
1223 | "uo", | |
1224 | SD_BUS_PARAM(transfer_id) | |
1225 | SD_BUS_PARAM(transfer_path), | |
1226 | method_import_tar_or_raw, | |
1227 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1228 | SD_BUS_METHOD_WITH_NAMES("ImportFileSystem", | |
1229 | "hsbb", | |
1230 | SD_BUS_PARAM(fd) | |
1231 | SD_BUS_PARAM(local_name) | |
1232 | SD_BUS_PARAM(force) | |
1233 | SD_BUS_PARAM(read_only), | |
1234 | "uo", | |
1235 | SD_BUS_PARAM(transfer_id) | |
1236 | SD_BUS_PARAM(transfer_path), | |
1237 | method_import_fs, | |
1238 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1239 | SD_BUS_METHOD_WITH_NAMES("ExportTar", | |
1240 | "shs", | |
1241 | SD_BUS_PARAM(local_name) | |
1242 | SD_BUS_PARAM(fd) | |
1243 | SD_BUS_PARAM(format), | |
1244 | "uo", | |
1245 | SD_BUS_PARAM(transfer_id) | |
1246 | SD_BUS_PARAM(transfer_path), | |
1247 | method_export_tar_or_raw, | |
1248 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1249 | SD_BUS_METHOD_WITH_NAMES("ExportRaw", | |
1250 | "shs", | |
1251 | SD_BUS_PARAM(local_name) | |
1252 | SD_BUS_PARAM(fd) | |
1253 | SD_BUS_PARAM(format), | |
1254 | "uo", | |
1255 | SD_BUS_PARAM(transfer_id) | |
1256 | SD_BUS_PARAM(transfer_path), | |
1257 | method_export_tar_or_raw, | |
1258 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1259 | SD_BUS_METHOD_WITH_NAMES("PullTar", | |
1260 | "sssb", | |
1261 | SD_BUS_PARAM(url) | |
1262 | SD_BUS_PARAM(local_name) | |
1263 | SD_BUS_PARAM(verify_mode) | |
1264 | SD_BUS_PARAM(force), | |
1265 | "uo", | |
1266 | SD_BUS_PARAM(transfer_id) | |
1267 | SD_BUS_PARAM(transfer_path), | |
1268 | method_pull_tar_or_raw, | |
1269 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1270 | SD_BUS_METHOD_WITH_NAMES("PullRaw", | |
1271 | "sssb", | |
1272 | SD_BUS_PARAM(url) | |
1273 | SD_BUS_PARAM(local_name) | |
1274 | SD_BUS_PARAM(verify_mode) | |
1275 | SD_BUS_PARAM(force), | |
1276 | "uo", | |
1277 | SD_BUS_PARAM(transfer_id) | |
1278 | SD_BUS_PARAM(transfer_path), | |
1279 | method_pull_tar_or_raw, | |
1280 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1281 | SD_BUS_METHOD_WITH_NAMES("ListTransfers", | |
1282 | NULL,, | |
1283 | "a(usssdo)", | |
1284 | SD_BUS_PARAM(transfers), | |
1285 | method_list_transfers, | |
1286 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1287 | SD_BUS_METHOD_WITH_NAMES("CancelTransfer", | |
1288 | "u", | |
1289 | SD_BUS_PARAM(transfer_id), | |
1290 | NULL,, | |
1291 | method_cancel_transfer, | |
1292 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1293 | ||
1294 | SD_BUS_SIGNAL_WITH_NAMES("TransferNew", | |
1295 | "uo", | |
1296 | SD_BUS_PARAM(transfer_id) | |
1297 | SD_BUS_PARAM(transfer_path), | |
1298 | 0), | |
1299 | SD_BUS_SIGNAL_WITH_NAMES("TransferRemoved", | |
1300 | "uos", | |
1301 | SD_BUS_PARAM(transfer_id) | |
1302 | SD_BUS_PARAM(transfer_path) | |
1303 | SD_BUS_PARAM(result), | |
1304 | 0), | |
1305 | ||
3d7415f4 LP |
1306 | SD_BUS_VTABLE_END, |
1307 | }; | |
1308 | ||
a3b7cf50 ZJS |
1309 | static const BusObjectImplementation manager_object = { |
1310 | "/org/freedesktop/import1", | |
1311 | "org.freedesktop.import1.Manager", | |
1312 | .vtables = BUS_VTABLES(manager_vtable), | |
1313 | .children = BUS_IMPLEMENTATIONS(&transfer_object), | |
1314 | }; | |
3d7415f4 LP |
1315 | |
1316 | static int manager_add_bus_objects(Manager *m) { | |
1317 | int r; | |
1318 | ||
1319 | assert(m); | |
1320 | ||
a3b7cf50 | 1321 | r = bus_add_implementation(m->bus, &manager_object, m); |
3d7415f4 | 1322 | if (r < 0) |
a3b7cf50 | 1323 | return r; |
3d7415f4 | 1324 | |
ac9f55ed LP |
1325 | r = bus_log_control_api_register(m->bus); |
1326 | if (r < 0) | |
1327 | return r; | |
1328 | ||
0c0b9306 | 1329 | r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.import1", 0, NULL, NULL); |
3d7415f4 | 1330 | if (r < 0) |
0c0b9306 | 1331 | return log_error_errno(r, "Failed to request name: %m"); |
3d7415f4 LP |
1332 | |
1333 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1334 | if (r < 0) | |
1335 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1336 | ||
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | static bool manager_check_idle(void *userdata) { | |
1341 | Manager *m = userdata; | |
1342 | ||
1343 | return hashmap_isempty(m->transfers); | |
1344 | } | |
1345 | ||
c7779a61 IS |
1346 | static void manager_parse_env(Manager *m) { |
1347 | int r; | |
1348 | ||
1349 | assert(m); | |
1350 | ||
1351 | /* Same as src/import/{import,pull}.c: | |
1352 | * Let's make these relatively low-level settings also controllable via env vars. User can then set | |
1353 | * them for systemd-importd.service if they like to tweak behaviour */ | |
1354 | ||
1355 | r = getenv_bool("SYSTEMD_IMPORT_BTRFS_SUBVOL"); | |
1356 | if (r >= 0) | |
1357 | m->use_btrfs_subvol = r; | |
1358 | else if (r != -ENXIO) | |
1359 | log_warning_errno(r, "Failed to parse $SYSTEMD_IMPORT_BTRFS_SUBVOL: %m"); | |
1360 | ||
1361 | r = getenv_bool("SYSTEMD_IMPORT_BTRFS_QUOTA"); | |
1362 | if (r >= 0) | |
1363 | m->use_btrfs_quota = r; | |
1364 | else if (r != -ENXIO) | |
1365 | log_warning_errno(r, "Failed to parse $SYSTEMD_IMPORT_BTRFS_QUOTA: %m"); | |
1366 | } | |
1367 | ||
5272ae42 | 1368 | static int run(int argc, char *argv[]) { |
3d7415f4 LP |
1369 | _cleanup_(manager_unrefp) Manager *m = NULL; |
1370 | int r; | |
1371 | ||
d2acb93d | 1372 | log_setup(); |
3d7415f4 | 1373 | |
fc021a5b ZJS |
1374 | r = service_parse_argv("systemd-importd.service", |
1375 | "VM and container image import and export service.", | |
d4cc0edf ZJS |
1376 | BUS_IMPLEMENTATIONS(&manager_object, |
1377 | &log_control_object), | |
fc021a5b ZJS |
1378 | argc, argv); |
1379 | if (r <= 0) | |
1380 | return r; | |
3d7415f4 | 1381 | |
fc021a5b | 1382 | umask(0022); |
3d7415f4 | 1383 | |
db7136ec | 1384 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, SIGTERM, SIGINT, SIGRTMIN+18) >= 0); |
3d7415f4 LP |
1385 | |
1386 | r = manager_new(&m); | |
5272ae42 ZJS |
1387 | if (r < 0) |
1388 | return log_error_errno(r, "Failed to allocate manager object: %m"); | |
3d7415f4 | 1389 | |
c7779a61 IS |
1390 | manager_parse_env(m); |
1391 | ||
3d7415f4 LP |
1392 | r = manager_add_bus_objects(m); |
1393 | if (r < 0) | |
5272ae42 | 1394 | return r; |
3d7415f4 | 1395 | |
deb86997 MY |
1396 | r = sd_notify(false, NOTIFY_READY); |
1397 | if (r < 0) | |
1398 | log_warning_errno(r, "Failed to send readiness notification, ignoring: %m"); | |
1399 | ||
1400 | r = bus_event_loop_with_idle( | |
1401 | m->event, | |
1402 | m->bus, | |
1403 | "org.freedesktop.import1", | |
1404 | DEFAULT_EXIT_USEC, | |
1405 | manager_check_idle, | |
1406 | m); | |
5272ae42 ZJS |
1407 | if (r < 0) |
1408 | return log_error_errno(r, "Failed to run event loop: %m"); | |
3d7415f4 | 1409 | |
5272ae42 | 1410 | return 0; |
3d7415f4 | 1411 | } |
5272ae42 ZJS |
1412 | |
1413 | DEFINE_MAIN_FUNCTION(run); |