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e735f4d4 MP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2015 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
20 | #include <sys/prctl.h> | |
21 | ||
22 | #include "sd-bus.h" | |
db2df898 MP |
23 | |
24 | #include "alloc-util.h" | |
e735f4d4 | 25 | #include "bus-common-errors.h" |
db2df898 | 26 | #include "bus-util.h" |
e735f4d4 | 27 | #include "def.h" |
db2df898 MP |
28 | #include "fd-util.h" |
29 | #include "hostname-util.h" | |
30 | #include "import-util.h" | |
e3bff60a | 31 | #include "machine-pool.h" |
db2df898 MP |
32 | #include "missing.h" |
33 | #include "mkdir.h" | |
34 | #include "parse-util.h" | |
e3bff60a | 35 | #include "path-util.h" |
e3bff60a | 36 | #include "process-util.h" |
86f210e9 | 37 | #include "signal-util.h" |
db2df898 MP |
38 | #include "socket-util.h" |
39 | #include "string-table.h" | |
40 | #include "strv.h" | |
41 | #include "syslog-util.h" | |
42 | #include "user-util.h" | |
43 | #include "util.h" | |
44 | #include "web-util.h" | |
e735f4d4 MP |
45 | |
46 | typedef struct Transfer Transfer; | |
47 | typedef struct Manager Manager; | |
48 | ||
49 | typedef enum TransferType { | |
e3bff60a MP |
50 | TRANSFER_IMPORT_TAR, |
51 | TRANSFER_IMPORT_RAW, | |
52 | TRANSFER_EXPORT_TAR, | |
53 | TRANSFER_EXPORT_RAW, | |
54 | TRANSFER_PULL_TAR, | |
55 | TRANSFER_PULL_RAW, | |
e735f4d4 MP |
56 | _TRANSFER_TYPE_MAX, |
57 | _TRANSFER_TYPE_INVALID = -1, | |
58 | } TransferType; | |
59 | ||
60 | struct Transfer { | |
61 | Manager *manager; | |
62 | ||
63 | uint32_t id; | |
64 | char *object_path; | |
65 | ||
66 | TransferType type; | |
67 | ImportVerify verify; | |
68 | ||
69 | char *remote; | |
70 | char *local; | |
71 | bool force_local; | |
e3bff60a | 72 | bool read_only; |
e735f4d4 | 73 | |
e3bff60a | 74 | char *format; |
e735f4d4 MP |
75 | |
76 | pid_t pid; | |
77 | ||
78 | int log_fd; | |
79 | ||
80 | char log_message[LINE_MAX]; | |
81 | size_t log_message_size; | |
82 | ||
83 | sd_event_source *pid_event_source; | |
84 | sd_event_source *log_event_source; | |
85 | ||
86 | unsigned n_canceled; | |
87 | unsigned progress_percent; | |
e3bff60a MP |
88 | |
89 | int stdin_fd; | |
90 | int stdout_fd; | |
e735f4d4 MP |
91 | }; |
92 | ||
93 | struct Manager { | |
94 | sd_event *event; | |
95 | sd_bus *bus; | |
96 | ||
97 | uint32_t current_transfer_id; | |
98 | Hashmap *transfers; | |
99 | ||
100 | Hashmap *polkit_registry; | |
101 | ||
102 | int notify_fd; | |
103 | ||
104 | sd_event_source *notify_event_source; | |
105 | }; | |
106 | ||
107 | #define TRANSFERS_MAX 64 | |
108 | ||
109 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
e3bff60a MP |
110 | [TRANSFER_IMPORT_TAR] = "import-tar", |
111 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
112 | [TRANSFER_EXPORT_TAR] = "export-tar", | |
113 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
114 | [TRANSFER_PULL_TAR] = "pull-tar", | |
115 | [TRANSFER_PULL_RAW] = "pull-raw", | |
e735f4d4 MP |
116 | }; |
117 | ||
118 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); | |
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); | |
e3bff60a | 132 | free(t->format); |
e735f4d4 MP |
133 | free(t->object_path); |
134 | ||
135 | if (t->pid > 0) { | |
136 | (void) kill_and_sigcont(t->pid, SIGKILL); | |
137 | (void) wait_for_terminate(t->pid, NULL); | |
138 | } | |
139 | ||
140 | safe_close(t->log_fd); | |
e3bff60a MP |
141 | safe_close(t->stdin_fd); |
142 | safe_close(t->stdout_fd); | |
e735f4d4 MP |
143 | |
144 | free(t); | |
145 | return NULL; | |
146 | } | |
147 | ||
148 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
149 | ||
150 | static int transfer_new(Manager *m, Transfer **ret) { | |
151 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
152 | uint32_t id; | |
153 | int r; | |
154 | ||
155 | assert(m); | |
156 | assert(ret); | |
157 | ||
158 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
159 | return -E2BIG; | |
160 | ||
161 | r = hashmap_ensure_allocated(&m->transfers, &trivial_hash_ops); | |
162 | if (r < 0) | |
163 | return r; | |
164 | ||
165 | t = new0(Transfer, 1); | |
166 | if (!t) | |
167 | return -ENOMEM; | |
168 | ||
169 | t->type = _TRANSFER_TYPE_INVALID; | |
170 | t->log_fd = -1; | |
e3bff60a | 171 | t->stdin_fd = -1; |
6300502b | 172 | t->stdout_fd = -1; |
e3bff60a | 173 | t->verify = _IMPORT_VERIFY_INVALID; |
e735f4d4 MP |
174 | |
175 | id = m->current_transfer_id + 1; | |
176 | ||
177 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
178 | return -ENOMEM; | |
179 | ||
180 | r = hashmap_put(m->transfers, UINT32_TO_PTR(id), t); | |
181 | if (r < 0) | |
182 | return r; | |
183 | ||
184 | m->current_transfer_id = id; | |
185 | ||
186 | t->manager = m; | |
187 | t->id = id; | |
188 | ||
189 | *ret = t; | |
190 | t = NULL; | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
195 | static void transfer_send_log_line(Transfer *t, const char *line) { | |
196 | int r, priority = LOG_INFO; | |
197 | ||
198 | assert(t); | |
199 | assert(line); | |
200 | ||
201 | syslog_parse_priority(&line, &priority, true); | |
202 | ||
203 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); | |
204 | ||
205 | r = sd_bus_emit_signal( | |
206 | t->manager->bus, | |
207 | t->object_path, | |
208 | "org.freedesktop.import1.Transfer", | |
209 | "LogMessage", | |
210 | "us", | |
211 | priority, | |
212 | line); | |
213 | if (r < 0) | |
214 | log_error_errno(r, "Cannot emit message: %m"); | |
215 | } | |
216 | ||
217 | static void transfer_send_logs(Transfer *t, bool flush) { | |
218 | assert(t); | |
219 | ||
220 | /* Try to send out all log messages, if we can. But if we | |
221 | * can't we remove the messages from the buffer, but don't | |
222 | * fail */ | |
223 | ||
224 | while (t->log_message_size > 0) { | |
225 | _cleanup_free_ char *n = NULL; | |
226 | char *e; | |
227 | ||
228 | if (t->log_message_size >= sizeof(t->log_message)) | |
229 | e = t->log_message + sizeof(t->log_message); | |
230 | else { | |
231 | char *a, *b; | |
232 | ||
233 | a = memchr(t->log_message, 0, t->log_message_size); | |
234 | b = memchr(t->log_message, '\n', t->log_message_size); | |
235 | ||
236 | if (a && b) | |
237 | e = a < b ? a : b; | |
238 | else if (a) | |
239 | e = a; | |
240 | else | |
241 | e = b; | |
242 | } | |
243 | ||
244 | if (!e) { | |
245 | if (!flush) | |
246 | return; | |
247 | ||
248 | e = t->log_message + t->log_message_size; | |
249 | } | |
250 | ||
251 | n = strndup(t->log_message, e - t->log_message); | |
252 | ||
253 | /* Skip over NUL and newlines */ | |
e3bff60a | 254 | while ((e < t->log_message + t->log_message_size) && (*e == 0 || *e == '\n')) |
e735f4d4 MP |
255 | e++; |
256 | ||
257 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
258 | t->log_message_size -= e - t->log_message; | |
259 | ||
260 | if (!n) { | |
261 | log_oom(); | |
262 | continue; | |
263 | } | |
264 | ||
265 | if (isempty(n)) | |
266 | continue; | |
267 | ||
268 | transfer_send_log_line(t, n); | |
269 | } | |
270 | } | |
271 | ||
272 | static int transfer_finalize(Transfer *t, bool success) { | |
273 | int r; | |
274 | ||
275 | assert(t); | |
276 | ||
277 | transfer_send_logs(t, true); | |
278 | ||
279 | r = sd_bus_emit_signal( | |
280 | t->manager->bus, | |
281 | "/org/freedesktop/import1", | |
282 | "org.freedesktop.import1.Manager", | |
283 | "TransferRemoved", | |
284 | "uos", | |
285 | t->id, | |
286 | t->object_path, | |
287 | success ? "done" : | |
288 | t->n_canceled > 0 ? "canceled" : "failed"); | |
289 | ||
290 | if (r < 0) | |
291 | log_error_errno(r, "Cannot emit message: %m"); | |
292 | ||
293 | transfer_unref(t); | |
294 | return 0; | |
295 | } | |
296 | ||
297 | static int transfer_cancel(Transfer *t) { | |
298 | int r; | |
299 | ||
300 | assert(t); | |
301 | ||
302 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
303 | if (r < 0) | |
304 | return r; | |
305 | ||
306 | t->n_canceled++; | |
307 | return 0; | |
308 | } | |
309 | ||
310 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
311 | Transfer *t = userdata; | |
312 | bool success = false; | |
313 | ||
314 | assert(s); | |
315 | assert(t); | |
316 | ||
317 | if (si->si_code == CLD_EXITED) { | |
318 | if (si->si_status != 0) | |
319 | log_error("Import process failed with exit code %i.", si->si_status); | |
320 | else { | |
321 | log_debug("Import process succeeded."); | |
322 | success = true; | |
323 | } | |
324 | ||
325 | } else if (si->si_code == CLD_KILLED || | |
326 | si->si_code == CLD_DUMPED) | |
327 | ||
328 | log_error("Import process terminated by signal %s.", signal_to_string(si->si_status)); | |
329 | else | |
330 | log_error("Import process failed due to unknown reason."); | |
331 | ||
332 | t->pid = 0; | |
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) { | |
338 | Transfer *t = userdata; | |
339 | ssize_t l; | |
340 | ||
341 | assert(s); | |
342 | assert(t); | |
343 | ||
344 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
345 | if (l <= 0) { | |
346 | /* EOF/read error. We just close the pipe here, and | |
347 | * close the watch, waiting for the SIGCHLD to arrive, | |
348 | * before we do anything else. */ | |
349 | ||
350 | if (l < 0) | |
351 | log_error_errno(errno, "Failed to read log message: %m"); | |
352 | ||
353 | t->log_event_source = sd_event_source_unref(t->log_event_source); | |
354 | return 0; | |
355 | } | |
356 | ||
357 | t->log_message_size += l; | |
358 | ||
359 | transfer_send_logs(t, false); | |
360 | ||
361 | return 0; | |
362 | } | |
363 | ||
364 | static int transfer_start(Transfer *t) { | |
365 | _cleanup_close_pair_ int pipefd[2] = { -1, -1 }; | |
366 | int r; | |
367 | ||
368 | assert(t); | |
369 | assert(t->pid <= 0); | |
370 | ||
371 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
372 | return -errno; | |
373 | ||
374 | t->pid = fork(); | |
375 | if (t->pid < 0) | |
376 | return -errno; | |
377 | if (t->pid == 0) { | |
378 | const char *cmd[] = { | |
e3bff60a | 379 | NULL, /* systemd-import, systemd-export or systemd-pull */ |
4c89c718 | 380 | NULL, /* tar, raw */ |
e3bff60a | 381 | NULL, /* --verify= */ |
e735f4d4 MP |
382 | NULL, /* verify argument */ |
383 | NULL, /* maybe --force */ | |
e3bff60a | 384 | NULL, /* maybe --read-only */ |
e3bff60a MP |
385 | NULL, /* if so: the actual URL */ |
386 | NULL, /* maybe --format= */ | |
387 | NULL, /* if so: the actual format */ | |
e735f4d4 MP |
388 | NULL, /* remote */ |
389 | NULL, /* local */ | |
390 | NULL | |
391 | }; | |
e3bff60a | 392 | unsigned k = 0; |
e735f4d4 MP |
393 | |
394 | /* Child */ | |
395 | ||
86f210e9 MP |
396 | (void) reset_all_signal_handlers(); |
397 | (void) reset_signal_mask(); | |
e735f4d4 MP |
398 | assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); |
399 | ||
400 | pipefd[0] = safe_close(pipefd[0]); | |
401 | ||
e3bff60a | 402 | if (dup2(pipefd[1], STDERR_FILENO) != STDERR_FILENO) { |
e735f4d4 MP |
403 | log_error_errno(errno, "Failed to dup2() fd: %m"); |
404 | _exit(EXIT_FAILURE); | |
405 | } | |
406 | ||
e3bff60a MP |
407 | if (t->stdout_fd >= 0) { |
408 | if (dup2(t->stdout_fd, STDOUT_FILENO) != STDOUT_FILENO) { | |
409 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
410 | _exit(EXIT_FAILURE); | |
411 | } | |
412 | ||
413 | if (t->stdout_fd != STDOUT_FILENO) | |
414 | safe_close(t->stdout_fd); | |
415 | } else { | |
416 | if (dup2(pipefd[1], STDOUT_FILENO) != STDOUT_FILENO) { | |
417 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
418 | _exit(EXIT_FAILURE); | |
419 | } | |
e735f4d4 MP |
420 | } |
421 | ||
422 | if (pipefd[1] != STDOUT_FILENO && pipefd[1] != STDERR_FILENO) | |
423 | pipefd[1] = safe_close(pipefd[1]); | |
424 | ||
e3bff60a MP |
425 | if (t->stdin_fd >= 0) { |
426 | if (dup2(t->stdin_fd, STDIN_FILENO) != STDIN_FILENO) { | |
427 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
428 | _exit(EXIT_FAILURE); | |
429 | } | |
430 | ||
431 | if (t->stdin_fd != STDIN_FILENO) | |
432 | safe_close(t->stdin_fd); | |
433 | } else { | |
434 | int null_fd; | |
435 | ||
436 | null_fd = open("/dev/null", O_RDONLY|O_NOCTTY); | |
437 | if (null_fd < 0) { | |
438 | log_error_errno(errno, "Failed to open /dev/null: %m"); | |
439 | _exit(EXIT_FAILURE); | |
440 | } | |
441 | ||
442 | if (dup2(null_fd, STDIN_FILENO) != STDIN_FILENO) { | |
443 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
444 | _exit(EXIT_FAILURE); | |
445 | } | |
446 | ||
447 | if (null_fd != STDIN_FILENO) | |
448 | safe_close(null_fd); | |
e735f4d4 MP |
449 | } |
450 | ||
e735f4d4 MP |
451 | fd_cloexec(STDIN_FILENO, false); |
452 | fd_cloexec(STDOUT_FILENO, false); | |
453 | fd_cloexec(STDERR_FILENO, false); | |
454 | ||
455 | setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1); | |
456 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1); | |
457 | ||
e3bff60a MP |
458 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_IMPORT_RAW)) |
459 | cmd[k++] = SYSTEMD_IMPORT_PATH; | |
460 | else if (IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) | |
461 | cmd[k++] = SYSTEMD_EXPORT_PATH; | |
462 | else | |
463 | cmd[k++] = SYSTEMD_PULL_PATH; | |
464 | ||
465 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_EXPORT_TAR, TRANSFER_PULL_TAR)) | |
466 | cmd[k++] = "tar"; | |
e3bff60a | 467 | else |
4c89c718 | 468 | cmd[k++] = "raw"; |
e3bff60a MP |
469 | |
470 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
471 | cmd[k++] = "--verify"; | |
472 | cmd[k++] = import_verify_to_string(t->verify); | |
473 | } | |
474 | ||
e735f4d4 MP |
475 | if (t->force_local) |
476 | cmd[k++] = "--force"; | |
e3bff60a MP |
477 | if (t->read_only) |
478 | cmd[k++] = "--read-only"; | |
e735f4d4 | 479 | |
e3bff60a MP |
480 | if (t->format) { |
481 | cmd[k++] = "--format"; | |
482 | cmd[k++] = t->format; | |
483 | } | |
484 | ||
485 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
486 | if (t->remote) | |
487 | cmd[k++] = t->remote; | |
488 | else | |
489 | cmd[k++] = "-"; | |
490 | } | |
491 | ||
e735f4d4 MP |
492 | if (t->local) |
493 | cmd[k++] = t->local; | |
494 | cmd[k] = NULL; | |
495 | ||
e3bff60a MP |
496 | execv(cmd[0], (char * const *) cmd); |
497 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
e735f4d4 MP |
498 | _exit(EXIT_FAILURE); |
499 | } | |
500 | ||
501 | pipefd[1] = safe_close(pipefd[1]); | |
502 | t->log_fd = pipefd[0]; | |
503 | pipefd[0] = -1; | |
504 | ||
e3bff60a MP |
505 | t->stdin_fd = safe_close(t->stdin_fd); |
506 | ||
e735f4d4 MP |
507 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, t->pid, WEXITED, transfer_on_pid, t); |
508 | if (r < 0) | |
509 | return r; | |
510 | ||
511 | r = sd_event_add_io(t->manager->event, &t->log_event_source, t->log_fd, EPOLLIN, transfer_on_log, t); | |
512 | if (r < 0) | |
513 | return r; | |
514 | ||
515 | /* Make sure always process logging before SIGCHLD */ | |
516 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
517 | if (r < 0) | |
518 | return r; | |
519 | ||
520 | r = sd_bus_emit_signal( | |
521 | t->manager->bus, | |
522 | "/org/freedesktop/import1", | |
523 | "org.freedesktop.import1.Manager", | |
524 | "TransferNew", | |
525 | "uo", | |
526 | t->id, | |
527 | t->object_path); | |
528 | if (r < 0) | |
529 | return r; | |
530 | ||
531 | return 0; | |
532 | } | |
533 | ||
534 | static Manager *manager_unref(Manager *m) { | |
535 | Transfer *t; | |
536 | ||
537 | if (!m) | |
538 | return NULL; | |
539 | ||
540 | sd_event_source_unref(m->notify_event_source); | |
541 | safe_close(m->notify_fd); | |
542 | ||
543 | while ((t = hashmap_first(m->transfers))) | |
544 | transfer_unref(t); | |
545 | ||
546 | hashmap_free(m->transfers); | |
547 | ||
548 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
549 | ||
fb183854 | 550 | m->bus = sd_bus_flush_close_unref(m->bus); |
e735f4d4 MP |
551 | sd_event_unref(m->event); |
552 | ||
553 | free(m); | |
554 | return NULL; | |
555 | } | |
556 | ||
557 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
558 | ||
559 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
560 | ||
561 | char buf[NOTIFY_BUFFER_MAX+1]; | |
562 | struct iovec iovec = { | |
563 | .iov_base = buf, | |
564 | .iov_len = sizeof(buf)-1, | |
565 | }; | |
566 | union { | |
567 | struct cmsghdr cmsghdr; | |
568 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
569 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
570 | } control = {}; | |
571 | struct msghdr msghdr = { | |
572 | .msg_iov = &iovec, | |
573 | .msg_iovlen = 1, | |
574 | .msg_control = &control, | |
575 | .msg_controllen = sizeof(control), | |
576 | }; | |
577 | struct ucred *ucred = NULL; | |
578 | Manager *m = userdata; | |
579 | struct cmsghdr *cmsg; | |
580 | unsigned percent; | |
581 | char *p, *e; | |
582 | Transfer *t; | |
583 | Iterator i; | |
584 | ssize_t n; | |
585 | int r; | |
586 | ||
587 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); | |
588 | if (n < 0) { | |
589 | if (errno == EAGAIN || errno == EINTR) | |
590 | return 0; | |
591 | ||
592 | return -errno; | |
593 | } | |
594 | ||
e3bff60a MP |
595 | cmsg_close_all(&msghdr); |
596 | ||
6300502b | 597 | CMSG_FOREACH(cmsg, &msghdr) |
e3bff60a | 598 | if (cmsg->cmsg_level == SOL_SOCKET && |
6300502b MP |
599 | cmsg->cmsg_type == SCM_CREDENTIALS && |
600 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) | |
e735f4d4 | 601 | ucred = (struct ucred*) CMSG_DATA(cmsg); |
e735f4d4 MP |
602 | |
603 | if (msghdr.msg_flags & MSG_TRUNC) { | |
604 | log_warning("Got overly long notification datagram, ignoring."); | |
605 | return 0; | |
606 | } | |
607 | ||
608 | if (!ucred || ucred->pid <= 0) { | |
609 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
610 | return 0; | |
611 | } | |
612 | ||
613 | HASHMAP_FOREACH(t, m->transfers, i) | |
614 | if (ucred->pid == t->pid) | |
615 | break; | |
616 | ||
617 | if (!t) { | |
618 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
619 | return 0; | |
620 | } | |
621 | ||
622 | buf[n] = 0; | |
623 | ||
624 | p = startswith(buf, "X_IMPORT_PROGRESS="); | |
625 | if (!p) { | |
626 | p = strstr(buf, "\nX_IMPORT_PROGRESS="); | |
627 | if (!p) | |
628 | return 0; | |
629 | ||
630 | p += 19; | |
631 | } | |
632 | ||
633 | e = strchrnul(p, '\n'); | |
634 | *e = 0; | |
635 | ||
636 | r = safe_atou(p, &percent); | |
637 | if (r < 0 || percent > 100) { | |
638 | log_warning("Got invalid percent value, ignoring."); | |
639 | return 0; | |
640 | } | |
641 | ||
642 | t->progress_percent = percent; | |
643 | ||
644 | log_debug("Got percentage from client: %u%%", percent); | |
645 | return 0; | |
646 | } | |
647 | ||
648 | static int manager_new(Manager **ret) { | |
649 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
650 | static const union sockaddr_union sa = { | |
651 | .un.sun_family = AF_UNIX, | |
652 | .un.sun_path = "/run/systemd/import/notify", | |
653 | }; | |
654 | static const int one = 1; | |
655 | int r; | |
656 | ||
657 | assert(ret); | |
658 | ||
659 | m = new0(Manager, 1); | |
660 | if (!m) | |
661 | return -ENOMEM; | |
662 | ||
663 | r = sd_event_default(&m->event); | |
664 | if (r < 0) | |
665 | return r; | |
666 | ||
667 | sd_event_set_watchdog(m->event, true); | |
668 | ||
669 | r = sd_bus_default_system(&m->bus); | |
670 | if (r < 0) | |
671 | return r; | |
672 | ||
673 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
674 | if (m->notify_fd < 0) | |
675 | return -errno; | |
676 | ||
677 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
678 | (void) unlink(sa.un.sun_path); | |
679 | ||
680 | if (bind(m->notify_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0) | |
681 | return -errno; | |
682 | ||
683 | if (setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) | |
684 | return -errno; | |
685 | ||
686 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_on_notify, m); | |
687 | if (r < 0) | |
688 | return r; | |
689 | ||
690 | *ret = m; | |
691 | m = NULL; | |
692 | ||
693 | return 0; | |
694 | } | |
695 | ||
4c89c718 | 696 | static Transfer *manager_find(Manager *m, TransferType type, const char *remote) { |
e735f4d4 MP |
697 | Transfer *t; |
698 | Iterator i; | |
699 | ||
700 | assert(m); | |
701 | assert(type >= 0); | |
702 | assert(type < _TRANSFER_TYPE_MAX); | |
703 | ||
704 | HASHMAP_FOREACH(t, m->transfers, i) { | |
705 | ||
706 | if (t->type == type && | |
4c89c718 | 707 | streq_ptr(t->remote, remote)) |
e735f4d4 MP |
708 | return t; |
709 | } | |
710 | ||
711 | return NULL; | |
712 | } | |
713 | ||
e3bff60a MP |
714 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
715 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
716 | int fd, force, read_only, r; | |
717 | const char *local, *object; | |
718 | Manager *m = userdata; | |
719 | TransferType type; | |
720 | uint32_t id; | |
721 | ||
722 | assert(msg); | |
723 | assert(m); | |
724 | ||
725 | r = bus_verify_polkit_async( | |
726 | msg, | |
727 | CAP_SYS_ADMIN, | |
728 | "org.freedesktop.import1.import", | |
d9dfd233 | 729 | NULL, |
e3bff60a MP |
730 | false, |
731 | UID_INVALID, | |
732 | &m->polkit_registry, | |
733 | error); | |
734 | if (r < 0) | |
735 | return r; | |
736 | if (r == 0) | |
737 | return 1; /* Will call us back */ | |
738 | ||
739 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
740 | if (r < 0) | |
741 | return r; | |
742 | ||
743 | if (!machine_name_is_valid(local)) | |
744 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
745 | ||
746 | r = setup_machine_directory((uint64_t) -1, error); | |
747 | if (r < 0) | |
748 | return r; | |
749 | ||
750 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
751 | ||
752 | r = transfer_new(m, &t); | |
753 | if (r < 0) | |
754 | return r; | |
755 | ||
756 | t->type = type; | |
757 | t->force_local = force; | |
758 | t->read_only = read_only; | |
759 | ||
760 | t->local = strdup(local); | |
761 | if (!t->local) | |
762 | return -ENOMEM; | |
763 | ||
764 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
765 | if (t->stdin_fd < 0) | |
766 | return -errno; | |
767 | ||
768 | r = transfer_start(t); | |
769 | if (r < 0) | |
770 | return r; | |
771 | ||
772 | object = t->object_path; | |
773 | id = t->id; | |
774 | t = NULL; | |
775 | ||
776 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
777 | } | |
778 | ||
779 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { | |
780 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
781 | int fd, r; | |
782 | const char *local, *object, *format; | |
783 | Manager *m = userdata; | |
784 | TransferType type; | |
785 | uint32_t id; | |
786 | ||
787 | assert(msg); | |
788 | assert(m); | |
789 | ||
790 | r = bus_verify_polkit_async( | |
791 | msg, | |
792 | CAP_SYS_ADMIN, | |
793 | "org.freedesktop.import1.export", | |
d9dfd233 | 794 | NULL, |
e3bff60a MP |
795 | false, |
796 | UID_INVALID, | |
797 | &m->polkit_registry, | |
798 | error); | |
799 | if (r < 0) | |
800 | return r; | |
801 | if (r == 0) | |
802 | return 1; /* Will call us back */ | |
803 | ||
804 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
805 | if (r < 0) | |
806 | return r; | |
807 | ||
808 | if (!machine_name_is_valid(local)) | |
809 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
810 | ||
811 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
812 | ||
813 | r = transfer_new(m, &t); | |
814 | if (r < 0) | |
815 | return r; | |
816 | ||
817 | t->type = type; | |
818 | ||
819 | if (!isempty(format)) { | |
820 | t->format = strdup(format); | |
821 | if (!t->format) | |
822 | return -ENOMEM; | |
823 | } | |
824 | ||
825 | t->local = strdup(local); | |
826 | if (!t->local) | |
827 | return -ENOMEM; | |
828 | ||
829 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
830 | if (t->stdout_fd < 0) | |
831 | return -errno; | |
832 | ||
833 | r = transfer_start(t); | |
834 | if (r < 0) | |
835 | return r; | |
836 | ||
837 | object = t->object_path; | |
838 | id = t->id; | |
839 | t = NULL; | |
840 | ||
841 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
842 | } | |
843 | ||
844 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { | |
e735f4d4 MP |
845 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
846 | const char *remote, *local, *verify, *object; | |
847 | Manager *m = userdata; | |
848 | ImportVerify v; | |
849 | TransferType type; | |
850 | int force, r; | |
851 | uint32_t id; | |
852 | ||
e735f4d4 MP |
853 | assert(msg); |
854 | assert(m); | |
855 | ||
856 | r = bus_verify_polkit_async( | |
857 | msg, | |
858 | CAP_SYS_ADMIN, | |
859 | "org.freedesktop.import1.pull", | |
d9dfd233 | 860 | NULL, |
e735f4d4 | 861 | false, |
e3bff60a | 862 | UID_INVALID, |
e735f4d4 MP |
863 | &m->polkit_registry, |
864 | error); | |
865 | if (r < 0) | |
866 | return r; | |
867 | if (r == 0) | |
868 | return 1; /* Will call us back */ | |
869 | ||
870 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
871 | if (r < 0) | |
872 | return r; | |
873 | ||
874 | if (!http_url_is_valid(remote)) | |
875 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "URL %s is invalid", remote); | |
876 | ||
877 | if (isempty(local)) | |
878 | local = NULL; | |
879 | else if (!machine_name_is_valid(local)) | |
880 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
881 | ||
882 | if (isempty(verify)) | |
883 | v = IMPORT_VERIFY_SIGNATURE; | |
884 | else | |
885 | v = import_verify_from_string(verify); | |
886 | if (v < 0) | |
887 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
888 | ||
e3bff60a MP |
889 | r = setup_machine_directory((uint64_t) -1, error); |
890 | if (r < 0) | |
891 | return r; | |
892 | ||
893 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; | |
e735f4d4 | 894 | |
4c89c718 | 895 | if (manager_find(m, type, remote)) |
e735f4d4 MP |
896 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); |
897 | ||
898 | r = transfer_new(m, &t); | |
899 | if (r < 0) | |
900 | return r; | |
901 | ||
902 | t->type = type; | |
903 | t->verify = v; | |
904 | t->force_local = force; | |
905 | ||
906 | t->remote = strdup(remote); | |
907 | if (!t->remote) | |
908 | return -ENOMEM; | |
909 | ||
e3bff60a MP |
910 | if (local) { |
911 | t->local = strdup(local); | |
912 | if (!t->local) | |
913 | return -ENOMEM; | |
914 | } | |
e735f4d4 MP |
915 | |
916 | r = transfer_start(t); | |
917 | if (r < 0) | |
918 | return r; | |
919 | ||
920 | object = t->object_path; | |
921 | id = t->id; | |
922 | t = NULL; | |
923 | ||
924 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
925 | } | |
926 | ||
e3bff60a | 927 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
4c89c718 | 928 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
e735f4d4 MP |
929 | Manager *m = userdata; |
930 | Transfer *t; | |
931 | Iterator i; | |
932 | int r; | |
933 | ||
e735f4d4 MP |
934 | assert(msg); |
935 | assert(m); | |
936 | ||
937 | r = sd_bus_message_new_method_return(msg, &reply); | |
938 | if (r < 0) | |
939 | return r; | |
940 | ||
941 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); | |
942 | if (r < 0) | |
943 | return r; | |
944 | ||
945 | HASHMAP_FOREACH(t, m->transfers, i) { | |
946 | ||
947 | r = sd_bus_message_append( | |
948 | reply, | |
949 | "(usssdo)", | |
950 | t->id, | |
951 | transfer_type_to_string(t->type), | |
952 | t->remote, | |
953 | t->local, | |
954 | (double) t->progress_percent / 100.0, | |
955 | t->object_path); | |
956 | if (r < 0) | |
957 | return r; | |
958 | } | |
959 | ||
960 | r = sd_bus_message_close_container(reply); | |
961 | if (r < 0) | |
962 | return r; | |
963 | ||
e3bff60a | 964 | return sd_bus_send(NULL, reply, NULL); |
e735f4d4 MP |
965 | } |
966 | ||
e3bff60a | 967 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
e735f4d4 MP |
968 | Transfer *t = userdata; |
969 | int r; | |
970 | ||
e735f4d4 MP |
971 | assert(msg); |
972 | assert(t); | |
973 | ||
974 | r = bus_verify_polkit_async( | |
975 | msg, | |
976 | CAP_SYS_ADMIN, | |
977 | "org.freedesktop.import1.pull", | |
d9dfd233 | 978 | NULL, |
e735f4d4 | 979 | false, |
e3bff60a | 980 | UID_INVALID, |
e735f4d4 MP |
981 | &t->manager->polkit_registry, |
982 | error); | |
983 | if (r < 0) | |
984 | return r; | |
985 | if (r == 0) | |
986 | return 1; /* Will call us back */ | |
987 | ||
988 | r = transfer_cancel(t); | |
989 | if (r < 0) | |
990 | return r; | |
991 | ||
992 | return sd_bus_reply_method_return(msg, NULL); | |
993 | } | |
994 | ||
e3bff60a | 995 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
e735f4d4 MP |
996 | Manager *m = userdata; |
997 | Transfer *t; | |
998 | uint32_t id; | |
999 | int r; | |
1000 | ||
e735f4d4 MP |
1001 | assert(msg); |
1002 | assert(m); | |
1003 | ||
1004 | r = bus_verify_polkit_async( | |
1005 | msg, | |
1006 | CAP_SYS_ADMIN, | |
1007 | "org.freedesktop.import1.pull", | |
d9dfd233 | 1008 | NULL, |
e735f4d4 | 1009 | false, |
e3bff60a | 1010 | UID_INVALID, |
e735f4d4 MP |
1011 | &m->polkit_registry, |
1012 | error); | |
1013 | if (r < 0) | |
1014 | return r; | |
1015 | if (r == 0) | |
1016 | return 1; /* Will call us back */ | |
1017 | ||
1018 | r = sd_bus_message_read(msg, "u", &id); | |
1019 | if (r < 0) | |
1020 | return r; | |
1021 | if (id <= 0) | |
1022 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); | |
1023 | ||
1024 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1025 | if (!t) | |
1026 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); | |
1027 | ||
1028 | r = transfer_cancel(t); | |
1029 | if (r < 0) | |
1030 | return r; | |
1031 | ||
1032 | return sd_bus_reply_method_return(msg, NULL); | |
1033 | } | |
1034 | ||
1035 | static int property_get_progress( | |
1036 | sd_bus *bus, | |
1037 | const char *path, | |
1038 | const char *interface, | |
1039 | const char *property, | |
1040 | sd_bus_message *reply, | |
1041 | void *userdata, | |
1042 | sd_bus_error *error) { | |
1043 | ||
1044 | Transfer *t = userdata; | |
1045 | ||
1046 | assert(bus); | |
1047 | assert(reply); | |
1048 | assert(t); | |
1049 | ||
1050 | return sd_bus_message_append(reply, "d", (double) t->progress_percent / 100.0); | |
1051 | } | |
1052 | ||
1053 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); | |
1054 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1055 | ||
1056 | static const sd_bus_vtable transfer_vtable[] = { | |
1057 | SD_BUS_VTABLE_START(0), | |
1058 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
1059 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1060 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1061 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1062 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
1063 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), | |
1064 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), | |
1065 | SD_BUS_SIGNAL("LogMessage", "us", 0), | |
1066 | SD_BUS_VTABLE_END, | |
1067 | }; | |
1068 | ||
1069 | static const sd_bus_vtable manager_vtable[] = { | |
1070 | SD_BUS_VTABLE_START(0), | |
e3bff60a MP |
1071 | SD_BUS_METHOD("ImportTar", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1072 | SD_BUS_METHOD("ImportRaw", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1073 | SD_BUS_METHOD("ExportTar", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1074 | SD_BUS_METHOD("ExportRaw", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
e735f4d4 MP |
1075 | SD_BUS_METHOD("PullTar", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1076 | SD_BUS_METHOD("PullRaw", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
e735f4d4 MP |
1077 | SD_BUS_METHOD("ListTransfers", NULL, "a(usssdo)", method_list_transfers, SD_BUS_VTABLE_UNPRIVILEGED), |
1078 | SD_BUS_METHOD("CancelTransfer", "u", NULL, method_cancel_transfer, SD_BUS_VTABLE_UNPRIVILEGED), | |
1079 | SD_BUS_SIGNAL("TransferNew", "uo", 0), | |
1080 | SD_BUS_SIGNAL("TransferRemoved", "uos", 0), | |
1081 | SD_BUS_VTABLE_END, | |
1082 | }; | |
1083 | ||
1084 | static int transfer_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
1085 | Manager *m = userdata; | |
1086 | Transfer *t; | |
1087 | const char *p; | |
1088 | uint32_t id; | |
1089 | int r; | |
1090 | ||
1091 | assert(bus); | |
1092 | assert(path); | |
1093 | assert(interface); | |
1094 | assert(found); | |
1095 | assert(m); | |
1096 | ||
1097 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1098 | if (!p) | |
1099 | return 0; | |
1100 | ||
1101 | r = safe_atou32(p, &id); | |
1102 | if (r < 0 || id == 0) | |
1103 | return 0; | |
1104 | ||
1105 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1106 | if (!t) | |
1107 | return 0; | |
1108 | ||
1109 | *found = t; | |
1110 | return 1; | |
1111 | } | |
1112 | ||
1113 | static int transfer_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
1114 | _cleanup_strv_free_ char **l = NULL; | |
1115 | Manager *m = userdata; | |
1116 | Transfer *t; | |
1117 | unsigned k = 0; | |
1118 | Iterator i; | |
1119 | ||
1120 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1121 | if (!l) | |
1122 | return -ENOMEM; | |
1123 | ||
1124 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1125 | ||
1126 | l[k] = strdup(t->object_path); | |
1127 | if (!l[k]) | |
1128 | return -ENOMEM; | |
1129 | ||
1130 | k++; | |
1131 | } | |
1132 | ||
1133 | *nodes = l; | |
1134 | l = NULL; | |
1135 | ||
1136 | return 1; | |
1137 | } | |
1138 | ||
1139 | static int manager_add_bus_objects(Manager *m) { | |
1140 | int r; | |
1141 | ||
1142 | assert(m); | |
1143 | ||
1144 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/import1", "org.freedesktop.import1.Manager", manager_vtable, m); | |
1145 | if (r < 0) | |
1146 | return log_error_errno(r, "Failed to register object: %m"); | |
1147 | ||
1148 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/import1/transfer", "org.freedesktop.import1.Transfer", transfer_vtable, transfer_object_find, m); | |
1149 | if (r < 0) | |
1150 | return log_error_errno(r, "Failed to register object: %m"); | |
1151 | ||
1152 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/import1/transfer", transfer_node_enumerator, m); | |
1153 | if (r < 0) | |
1154 | return log_error_errno(r, "Failed to add transfer enumerator: %m"); | |
1155 | ||
1156 | r = sd_bus_request_name(m->bus, "org.freedesktop.import1", 0); | |
1157 | if (r < 0) | |
1158 | return log_error_errno(r, "Failed to register name: %m"); | |
1159 | ||
1160 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1161 | if (r < 0) | |
1162 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1163 | ||
1164 | return 0; | |
1165 | } | |
1166 | ||
1167 | static bool manager_check_idle(void *userdata) { | |
1168 | Manager *m = userdata; | |
1169 | ||
1170 | return hashmap_isempty(m->transfers); | |
1171 | } | |
1172 | ||
1173 | static int manager_run(Manager *m) { | |
1174 | assert(m); | |
1175 | ||
1176 | return bus_event_loop_with_idle( | |
1177 | m->event, | |
1178 | m->bus, | |
1179 | "org.freedesktop.import1", | |
1180 | DEFAULT_EXIT_USEC, | |
1181 | manager_check_idle, | |
1182 | m); | |
1183 | } | |
1184 | ||
1185 | int main(int argc, char *argv[]) { | |
1186 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
1187 | int r; | |
1188 | ||
1189 | log_set_target(LOG_TARGET_AUTO); | |
1190 | log_parse_environment(); | |
1191 | log_open(); | |
1192 | ||
1193 | umask(0022); | |
1194 | ||
1195 | if (argc != 1) { | |
1196 | log_error("This program takes no arguments."); | |
1197 | r = -EINVAL; | |
1198 | goto finish; | |
1199 | } | |
1200 | ||
86f210e9 | 1201 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); |
e735f4d4 MP |
1202 | |
1203 | r = manager_new(&m); | |
1204 | if (r < 0) { | |
1205 | log_error_errno(r, "Failed to allocate manager object: %m"); | |
1206 | goto finish; | |
1207 | } | |
1208 | ||
1209 | r = manager_add_bus_objects(m); | |
1210 | if (r < 0) | |
1211 | goto finish; | |
1212 | ||
1213 | r = manager_run(m); | |
1214 | if (r < 0) { | |
1215 | log_error_errno(r, "Failed to run event loop: %m"); | |
1216 | goto finish; | |
1217 | } | |
1218 | ||
1219 | finish: | |
1220 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1221 | } |