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3d7415f4 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2015 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <sys/prctl.h> | |
23 | ||
24 | #include "sd-bus.h" | |
3ffd4af2 | 25 | |
b5efdb8a | 26 | #include "alloc-util.h" |
3d7415f4 | 27 | #include "bus-common-errors.h" |
3ffd4af2 | 28 | #include "bus-util.h" |
a97dcc12 | 29 | #include "def.h" |
3ffd4af2 LP |
30 | #include "fd-util.h" |
31 | #include "hostname-util.h" | |
32 | #include "import-util.h" | |
432cea00 | 33 | #include "machine-pool.h" |
3ffd4af2 LP |
34 | #include "missing.h" |
35 | #include "mkdir.h" | |
6bedfcbb | 36 | #include "parse-util.h" |
113b3fc1 | 37 | #include "path-util.h" |
0b452006 | 38 | #include "process-util.h" |
24882e06 | 39 | #include "signal-util.h" |
3ffd4af2 | 40 | #include "socket-util.h" |
8b43440b | 41 | #include "string-table.h" |
3ffd4af2 | 42 | #include "strv.h" |
7ccbd1ae | 43 | #include "syslog-util.h" |
ee104e11 | 44 | #include "user-util.h" |
3ffd4af2 | 45 | #include "util.h" |
49cf4170 | 46 | #include "web-util.h" |
3d7415f4 LP |
47 | |
48 | typedef struct Transfer Transfer; | |
49 | typedef struct Manager Manager; | |
50 | ||
51 | typedef enum TransferType { | |
b6e676ce LP |
52 | TRANSFER_IMPORT_TAR, |
53 | TRANSFER_IMPORT_RAW, | |
587fec42 LP |
54 | TRANSFER_EXPORT_TAR, |
55 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
56 | TRANSFER_PULL_TAR, |
57 | TRANSFER_PULL_RAW, | |
3d7415f4 LP |
58 | _TRANSFER_TYPE_MAX, |
59 | _TRANSFER_TYPE_INVALID = -1, | |
60 | } TransferType; | |
61 | ||
62 | struct Transfer { | |
63 | Manager *manager; | |
64 | ||
65 | uint32_t id; | |
66 | char *object_path; | |
67 | ||
68 | TransferType type; | |
69 | ImportVerify verify; | |
70 | ||
71 | char *remote; | |
72 | char *local; | |
73 | bool force_local; | |
b6e676ce | 74 | bool read_only; |
3d7415f4 | 75 | |
587fec42 | 76 | char *format; |
3d7415f4 LP |
77 | |
78 | pid_t pid; | |
79 | ||
80 | int log_fd; | |
81 | ||
82 | char log_message[LINE_MAX]; | |
83 | size_t log_message_size; | |
84 | ||
85 | sd_event_source *pid_event_source; | |
86 | sd_event_source *log_event_source; | |
87 | ||
88 | unsigned n_canceled; | |
7079cfef | 89 | unsigned progress_percent; |
b6e676ce LP |
90 | |
91 | int stdin_fd; | |
587fec42 | 92 | int stdout_fd; |
3d7415f4 LP |
93 | }; |
94 | ||
95 | struct Manager { | |
96 | sd_event *event; | |
97 | sd_bus *bus; | |
98 | ||
99 | uint32_t current_transfer_id; | |
100 | Hashmap *transfers; | |
101 | ||
102 | Hashmap *polkit_registry; | |
7079cfef LP |
103 | |
104 | int notify_fd; | |
105 | ||
106 | sd_event_source *notify_event_source; | |
3d7415f4 LP |
107 | }; |
108 | ||
109 | #define TRANSFERS_MAX 64 | |
110 | ||
111 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
112 | [TRANSFER_IMPORT_TAR] = "import-tar", |
113 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
587fec42 LP |
114 | [TRANSFER_EXPORT_TAR] = "export-tar", |
115 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b6e676ce LP |
116 | [TRANSFER_PULL_TAR] = "pull-tar", |
117 | [TRANSFER_PULL_RAW] = "pull-raw", | |
3d7415f4 LP |
118 | }; |
119 | ||
b9a5f858 | 120 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
121 | |
122 | static Transfer *transfer_unref(Transfer *t) { | |
123 | if (!t) | |
124 | return NULL; | |
125 | ||
126 | if (t->manager) | |
127 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
128 | ||
129 | sd_event_source_unref(t->pid_event_source); | |
130 | sd_event_source_unref(t->log_event_source); | |
131 | ||
132 | free(t->remote); | |
133 | free(t->local); | |
587fec42 | 134 | free(t->format); |
3d7415f4 LP |
135 | free(t->object_path); |
136 | ||
137 | if (t->pid > 0) { | |
138 | (void) kill_and_sigcont(t->pid, SIGKILL); | |
139 | (void) wait_for_terminate(t->pid, NULL); | |
140 | } | |
141 | ||
142 | safe_close(t->log_fd); | |
b6e676ce | 143 | safe_close(t->stdin_fd); |
587fec42 | 144 | safe_close(t->stdout_fd); |
3d7415f4 LP |
145 | |
146 | free(t); | |
147 | return NULL; | |
148 | } | |
149 | ||
150 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
151 | ||
152 | static int transfer_new(Manager *m, Transfer **ret) { | |
153 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
154 | uint32_t id; | |
155 | int r; | |
156 | ||
157 | assert(m); | |
158 | assert(ret); | |
159 | ||
160 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
161 | return -E2BIG; | |
162 | ||
163 | r = hashmap_ensure_allocated(&m->transfers, &trivial_hash_ops); | |
164 | if (r < 0) | |
165 | return r; | |
166 | ||
167 | t = new0(Transfer, 1); | |
168 | if (!t) | |
169 | return -ENOMEM; | |
170 | ||
171 | t->type = _TRANSFER_TYPE_INVALID; | |
172 | t->log_fd = -1; | |
b6e676ce | 173 | t->stdin_fd = -1; |
3be78ab2 | 174 | t->stdout_fd = -1; |
b6e676ce | 175 | t->verify = _IMPORT_VERIFY_INVALID; |
3d7415f4 LP |
176 | |
177 | id = m->current_transfer_id + 1; | |
178 | ||
179 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
180 | return -ENOMEM; | |
181 | ||
182 | r = hashmap_put(m->transfers, UINT32_TO_PTR(id), t); | |
183 | if (r < 0) | |
184 | return r; | |
185 | ||
186 | m->current_transfer_id = id; | |
187 | ||
188 | t->manager = m; | |
189 | t->id = id; | |
190 | ||
191 | *ret = t; | |
192 | t = NULL; | |
193 | ||
194 | return 0; | |
195 | } | |
196 | ||
197 | static void transfer_send_log_line(Transfer *t, const char *line) { | |
198 | int r, priority = LOG_INFO; | |
199 | ||
200 | assert(t); | |
201 | assert(line); | |
202 | ||
203 | syslog_parse_priority(&line, &priority, true); | |
204 | ||
09d46cfd | 205 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
206 | |
207 | r = sd_bus_emit_signal( | |
208 | t->manager->bus, | |
209 | t->object_path, | |
210 | "org.freedesktop.import1.Transfer", | |
211 | "LogMessage", | |
212 | "us", | |
213 | priority, | |
214 | line); | |
215 | if (r < 0) | |
216 | log_error_errno(r, "Cannot emit message: %m"); | |
217 | } | |
218 | ||
219 | static void transfer_send_logs(Transfer *t, bool flush) { | |
220 | assert(t); | |
221 | ||
222 | /* Try to send out all log messages, if we can. But if we | |
223 | * can't we remove the messages from the buffer, but don't | |
224 | * fail */ | |
225 | ||
226 | while (t->log_message_size > 0) { | |
227 | _cleanup_free_ char *n = NULL; | |
228 | char *e; | |
229 | ||
230 | if (t->log_message_size >= sizeof(t->log_message)) | |
231 | e = t->log_message + sizeof(t->log_message); | |
232 | else { | |
233 | char *a, *b; | |
234 | ||
235 | a = memchr(t->log_message, 0, t->log_message_size); | |
236 | b = memchr(t->log_message, '\n', t->log_message_size); | |
237 | ||
238 | if (a && b) | |
239 | e = a < b ? a : b; | |
240 | else if (a) | |
241 | e = a; | |
242 | else | |
243 | e = b; | |
244 | } | |
245 | ||
246 | if (!e) { | |
247 | if (!flush) | |
248 | return; | |
249 | ||
250 | e = t->log_message + t->log_message_size; | |
251 | } | |
252 | ||
253 | n = strndup(t->log_message, e - t->log_message); | |
254 | ||
255 | /* Skip over NUL and newlines */ | |
be3ce301 | 256 | while ((e < t->log_message + t->log_message_size) && (*e == 0 || *e == '\n')) |
3d7415f4 LP |
257 | e++; |
258 | ||
259 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
260 | t->log_message_size -= e - t->log_message; | |
261 | ||
262 | if (!n) { | |
263 | log_oom(); | |
264 | continue; | |
265 | } | |
266 | ||
267 | if (isempty(n)) | |
268 | continue; | |
269 | ||
270 | transfer_send_log_line(t, n); | |
271 | } | |
272 | } | |
273 | ||
274 | static int transfer_finalize(Transfer *t, bool success) { | |
275 | int r; | |
276 | ||
277 | assert(t); | |
278 | ||
279 | transfer_send_logs(t, true); | |
280 | ||
281 | r = sd_bus_emit_signal( | |
282 | t->manager->bus, | |
283 | "/org/freedesktop/import1", | |
284 | "org.freedesktop.import1.Manager", | |
285 | "TransferRemoved", | |
286 | "uos", | |
287 | t->id, | |
288 | t->object_path, | |
289 | success ? "done" : | |
290 | t->n_canceled > 0 ? "canceled" : "failed"); | |
291 | ||
292 | if (r < 0) | |
293 | log_error_errno(r, "Cannot emit message: %m"); | |
294 | ||
295 | transfer_unref(t); | |
296 | return 0; | |
297 | } | |
298 | ||
299 | static int transfer_cancel(Transfer *t) { | |
300 | int r; | |
301 | ||
302 | assert(t); | |
303 | ||
304 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
305 | if (r < 0) | |
306 | return r; | |
307 | ||
308 | t->n_canceled++; | |
309 | return 0; | |
310 | } | |
311 | ||
312 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
313 | Transfer *t = userdata; | |
314 | bool success = false; | |
315 | ||
316 | assert(s); | |
317 | assert(t); | |
318 | ||
319 | if (si->si_code == CLD_EXITED) { | |
320 | if (si->si_status != 0) | |
321 | log_error("Import process failed with exit code %i.", si->si_status); | |
322 | else { | |
323 | log_debug("Import process succeeded."); | |
324 | success = true; | |
325 | } | |
326 | ||
327 | } else if (si->si_code == CLD_KILLED || | |
328 | si->si_code == CLD_DUMPED) | |
329 | ||
330 | log_error("Import process terminated by signal %s.", signal_to_string(si->si_status)); | |
331 | else | |
332 | log_error("Import process failed due to unknown reason."); | |
333 | ||
334 | t->pid = 0; | |
335 | ||
336 | return transfer_finalize(t, success); | |
337 | } | |
338 | ||
339 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
340 | Transfer *t = userdata; | |
341 | ssize_t l; | |
342 | ||
343 | assert(s); | |
344 | assert(t); | |
345 | ||
346 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
347 | if (l <= 0) { | |
348 | /* EOF/read error. We just close the pipe here, and | |
349 | * close the watch, waiting for the SIGCHLD to arrive, | |
350 | * before we do anything else. */ | |
351 | ||
352 | if (l < 0) | |
353 | log_error_errno(errno, "Failed to read log message: %m"); | |
354 | ||
355 | t->log_event_source = sd_event_source_unref(t->log_event_source); | |
356 | return 0; | |
357 | } | |
358 | ||
359 | t->log_message_size += l; | |
360 | ||
361 | transfer_send_logs(t, false); | |
362 | ||
363 | return 0; | |
364 | } | |
365 | ||
366 | static int transfer_start(Transfer *t) { | |
367 | _cleanup_close_pair_ int pipefd[2] = { -1, -1 }; | |
368 | int r; | |
369 | ||
370 | assert(t); | |
371 | assert(t->pid <= 0); | |
372 | ||
373 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
374 | return -errno; | |
375 | ||
376 | t->pid = fork(); | |
377 | if (t->pid < 0) | |
378 | return -errno; | |
379 | if (t->pid == 0) { | |
380 | const char *cmd[] = { | |
587fec42 | 381 | NULL, /* systemd-import, 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 | }; | |
b6e676ce | 394 | unsigned k = 0; |
3d7415f4 LP |
395 | |
396 | /* Child */ | |
397 | ||
ce30c8dc LP |
398 | (void) reset_all_signal_handlers(); |
399 | (void) reset_signal_mask(); | |
3d7415f4 LP |
400 | assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); |
401 | ||
402 | pipefd[0] = safe_close(pipefd[0]); | |
403 | ||
587fec42 | 404 | if (dup2(pipefd[1], STDERR_FILENO) != STDERR_FILENO) { |
3d7415f4 LP |
405 | log_error_errno(errno, "Failed to dup2() fd: %m"); |
406 | _exit(EXIT_FAILURE); | |
407 | } | |
408 | ||
587fec42 LP |
409 | if (t->stdout_fd >= 0) { |
410 | if (dup2(t->stdout_fd, STDOUT_FILENO) != STDOUT_FILENO) { | |
411 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
412 | _exit(EXIT_FAILURE); | |
413 | } | |
414 | ||
415 | if (t->stdout_fd != STDOUT_FILENO) | |
416 | safe_close(t->stdout_fd); | |
417 | } else { | |
418 | if (dup2(pipefd[1], STDOUT_FILENO) != STDOUT_FILENO) { | |
419 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
420 | _exit(EXIT_FAILURE); | |
421 | } | |
3d7415f4 LP |
422 | } |
423 | ||
424 | if (pipefd[1] != STDOUT_FILENO && pipefd[1] != STDERR_FILENO) | |
425 | pipefd[1] = safe_close(pipefd[1]); | |
426 | ||
b6e676ce LP |
427 | if (t->stdin_fd >= 0) { |
428 | if (dup2(t->stdin_fd, STDIN_FILENO) != STDIN_FILENO) { | |
429 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
430 | _exit(EXIT_FAILURE); | |
431 | } | |
432 | ||
433 | if (t->stdin_fd != STDIN_FILENO) | |
434 | safe_close(t->stdin_fd); | |
435 | } else { | |
436 | int null_fd; | |
437 | ||
438 | null_fd = open("/dev/null", O_RDONLY|O_NOCTTY); | |
439 | if (null_fd < 0) { | |
440 | log_error_errno(errno, "Failed to open /dev/null: %m"); | |
441 | _exit(EXIT_FAILURE); | |
442 | } | |
443 | ||
444 | if (dup2(null_fd, STDIN_FILENO) != STDIN_FILENO) { | |
445 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
446 | _exit(EXIT_FAILURE); | |
447 | } | |
448 | ||
449 | if (null_fd != STDIN_FILENO) | |
450 | safe_close(null_fd); | |
3d7415f4 LP |
451 | } |
452 | ||
3d7415f4 LP |
453 | fd_cloexec(STDIN_FILENO, false); |
454 | fd_cloexec(STDOUT_FILENO, false); | |
455 | fd_cloexec(STDERR_FILENO, false); | |
456 | ||
7079cfef LP |
457 | setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1); |
458 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1); | |
3d7415f4 | 459 | |
b6e676ce LP |
460 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_IMPORT_RAW)) |
461 | cmd[k++] = SYSTEMD_IMPORT_PATH; | |
587fec42 LP |
462 | else if (IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) |
463 | cmd[k++] = SYSTEMD_EXPORT_PATH; | |
b6e676ce LP |
464 | else |
465 | cmd[k++] = SYSTEMD_PULL_PATH; | |
466 | ||
587fec42 | 467 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_EXPORT_TAR, TRANSFER_PULL_TAR)) |
b6e676ce | 468 | cmd[k++] = "tar"; |
b6e676ce | 469 | else |
b43d75c3 | 470 | cmd[k++] = "raw"; |
b6e676ce LP |
471 | |
472 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
473 | cmd[k++] = "--verify"; | |
474 | cmd[k++] = import_verify_to_string(t->verify); | |
475 | } | |
476 | ||
3d7415f4 LP |
477 | if (t->force_local) |
478 | cmd[k++] = "--force"; | |
b6e676ce LP |
479 | if (t->read_only) |
480 | cmd[k++] = "--read-only"; | |
3d7415f4 | 481 | |
587fec42 LP |
482 | if (t->format) { |
483 | cmd[k++] = "--format"; | |
484 | cmd[k++] = t->format; | |
485 | } | |
486 | ||
487 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
488 | if (t->remote) | |
489 | cmd[k++] = t->remote; | |
490 | else | |
491 | cmd[k++] = "-"; | |
492 | } | |
b6e676ce | 493 | |
3d7415f4 LP |
494 | if (t->local) |
495 | cmd[k++] = t->local; | |
496 | cmd[k] = NULL; | |
497 | ||
b6e676ce LP |
498 | execv(cmd[0], (char * const *) cmd); |
499 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
500 | _exit(EXIT_FAILURE); |
501 | } | |
502 | ||
503 | pipefd[1] = safe_close(pipefd[1]); | |
504 | t->log_fd = pipefd[0]; | |
505 | pipefd[0] = -1; | |
506 | ||
b6e676ce LP |
507 | t->stdin_fd = safe_close(t->stdin_fd); |
508 | ||
3d7415f4 LP |
509 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, t->pid, WEXITED, transfer_on_pid, t); |
510 | if (r < 0) | |
511 | return r; | |
512 | ||
513 | r = sd_event_add_io(t->manager->event, &t->log_event_source, t->log_fd, EPOLLIN, transfer_on_log, t); | |
514 | if (r < 0) | |
515 | return r; | |
516 | ||
517 | /* Make sure always process logging before SIGCHLD */ | |
518 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
519 | if (r < 0) | |
520 | return r; | |
521 | ||
522 | r = sd_bus_emit_signal( | |
523 | t->manager->bus, | |
524 | "/org/freedesktop/import1", | |
525 | "org.freedesktop.import1.Manager", | |
526 | "TransferNew", | |
527 | "uo", | |
528 | t->id, | |
529 | t->object_path); | |
530 | if (r < 0) | |
531 | return r; | |
532 | ||
533 | return 0; | |
534 | } | |
535 | ||
536 | static Manager *manager_unref(Manager *m) { | |
537 | Transfer *t; | |
538 | ||
539 | if (!m) | |
540 | return NULL; | |
541 | ||
7079cfef LP |
542 | sd_event_source_unref(m->notify_event_source); |
543 | safe_close(m->notify_fd); | |
544 | ||
3d7415f4 LP |
545 | while ((t = hashmap_first(m->transfers))) |
546 | transfer_unref(t); | |
547 | ||
548 | hashmap_free(m->transfers); | |
549 | ||
550 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
551 | ||
03976f7b | 552 | m->bus = sd_bus_flush_close_unref(m->bus); |
3d7415f4 LP |
553 | sd_event_unref(m->event); |
554 | ||
555 | free(m); | |
556 | return NULL; | |
557 | } | |
558 | ||
559 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
560 | ||
7079cfef LP |
561 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
562 | ||
563 | char buf[NOTIFY_BUFFER_MAX+1]; | |
564 | struct iovec iovec = { | |
565 | .iov_base = buf, | |
566 | .iov_len = sizeof(buf)-1, | |
567 | }; | |
568 | union { | |
569 | struct cmsghdr cmsghdr; | |
570 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
571 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
572 | } control = {}; | |
573 | struct msghdr msghdr = { | |
574 | .msg_iov = &iovec, | |
575 | .msg_iovlen = 1, | |
576 | .msg_control = &control, | |
577 | .msg_controllen = sizeof(control), | |
578 | }; | |
579 | struct ucred *ucred = NULL; | |
580 | Manager *m = userdata; | |
581 | struct cmsghdr *cmsg; | |
582 | unsigned percent; | |
583 | char *p, *e; | |
584 | Transfer *t; | |
585 | Iterator i; | |
586 | ssize_t n; | |
587 | int r; | |
588 | ||
589 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); | |
590 | if (n < 0) { | |
591 | if (errno == EAGAIN || errno == EINTR) | |
592 | return 0; | |
593 | ||
594 | return -errno; | |
595 | } | |
596 | ||
1c8da044 LP |
597 | cmsg_close_all(&msghdr); |
598 | ||
3ee897d6 LP |
599 | CMSG_FOREACH(cmsg, &msghdr) |
600 | if (cmsg->cmsg_level == SOL_SOCKET && | |
601 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
602 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) | |
7079cfef | 603 | ucred = (struct ucred*) CMSG_DATA(cmsg); |
7079cfef LP |
604 | |
605 | if (msghdr.msg_flags & MSG_TRUNC) { | |
606 | log_warning("Got overly long notification datagram, ignoring."); | |
607 | return 0; | |
608 | } | |
609 | ||
610 | if (!ucred || ucred->pid <= 0) { | |
611 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
612 | return 0; | |
613 | } | |
614 | ||
615 | HASHMAP_FOREACH(t, m->transfers, i) | |
616 | if (ucred->pid == t->pid) | |
617 | break; | |
618 | ||
619 | if (!t) { | |
620 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
621 | return 0; | |
622 | } | |
623 | ||
624 | buf[n] = 0; | |
625 | ||
626 | p = startswith(buf, "X_IMPORT_PROGRESS="); | |
627 | if (!p) { | |
628 | p = strstr(buf, "\nX_IMPORT_PROGRESS="); | |
629 | if (!p) | |
630 | return 0; | |
631 | ||
632 | p += 19; | |
633 | } | |
634 | ||
635 | e = strchrnul(p, '\n'); | |
636 | *e = 0; | |
637 | ||
638 | r = safe_atou(p, &percent); | |
639 | if (r < 0 || percent > 100) { | |
640 | log_warning("Got invalid percent value, ignoring."); | |
641 | return 0; | |
642 | } | |
643 | ||
644 | t->progress_percent = percent; | |
645 | ||
646 | log_debug("Got percentage from client: %u%%", percent); | |
647 | return 0; | |
648 | } | |
649 | ||
3d7415f4 LP |
650 | static int manager_new(Manager **ret) { |
651 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
652 | static const union sockaddr_union sa = { |
653 | .un.sun_family = AF_UNIX, | |
654 | .un.sun_path = "/run/systemd/import/notify", | |
655 | }; | |
656 | static const int one = 1; | |
3d7415f4 LP |
657 | int r; |
658 | ||
659 | assert(ret); | |
660 | ||
661 | m = new0(Manager, 1); | |
662 | if (!m) | |
663 | return -ENOMEM; | |
664 | ||
665 | r = sd_event_default(&m->event); | |
666 | if (r < 0) | |
667 | return r; | |
668 | ||
669 | sd_event_set_watchdog(m->event, true); | |
670 | ||
671 | r = sd_bus_default_system(&m->bus); | |
672 | if (r < 0) | |
673 | return r; | |
674 | ||
7079cfef LP |
675 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
676 | if (m->notify_fd < 0) | |
677 | return -errno; | |
678 | ||
679 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
680 | (void) unlink(sa.un.sun_path); | |
681 | ||
682 | if (bind(m->notify_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0) | |
683 | return -errno; | |
684 | ||
685 | if (setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) | |
686 | return -errno; | |
687 | ||
688 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_on_notify, m); | |
689 | if (r < 0) | |
690 | return r; | |
691 | ||
3d7415f4 LP |
692 | *ret = m; |
693 | m = NULL; | |
694 | ||
695 | return 0; | |
696 | } | |
697 | ||
b43d75c3 | 698 | static Transfer *manager_find(Manager *m, TransferType type, const char *remote) { |
3d7415f4 LP |
699 | Transfer *t; |
700 | Iterator i; | |
701 | ||
702 | assert(m); | |
703 | assert(type >= 0); | |
704 | assert(type < _TRANSFER_TYPE_MAX); | |
705 | ||
706 | HASHMAP_FOREACH(t, m->transfers, i) { | |
707 | ||
708 | if (t->type == type && | |
b43d75c3 | 709 | streq_ptr(t->remote, remote)) |
3d7415f4 LP |
710 | return t; |
711 | } | |
712 | ||
713 | return NULL; | |
714 | } | |
715 | ||
19070062 | 716 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
b6e676ce LP |
717 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
718 | int fd, force, read_only, r; | |
719 | const char *local, *object; | |
720 | Manager *m = userdata; | |
721 | TransferType type; | |
722 | uint32_t id; | |
723 | ||
19070062 LP |
724 | assert(msg); |
725 | assert(m); | |
726 | ||
b6e676ce LP |
727 | r = bus_verify_polkit_async( |
728 | msg, | |
729 | CAP_SYS_ADMIN, | |
730 | "org.freedesktop.import1.import", | |
403ed0e5 | 731 | NULL, |
b6e676ce LP |
732 | false, |
733 | UID_INVALID, | |
734 | &m->polkit_registry, | |
735 | error); | |
736 | if (r < 0) | |
737 | return r; | |
738 | if (r == 0) | |
739 | return 1; /* Will call us back */ | |
740 | ||
741 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
742 | if (r < 0) | |
743 | return r; | |
744 | ||
745 | if (!machine_name_is_valid(local)) | |
746 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
747 | ||
748 | r = setup_machine_directory((uint64_t) -1, error); | |
749 | if (r < 0) | |
750 | return r; | |
751 | ||
752 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
753 | ||
754 | r = transfer_new(m, &t); | |
755 | if (r < 0) | |
756 | return r; | |
757 | ||
758 | t->type = type; | |
759 | t->force_local = force; | |
760 | t->read_only = read_only; | |
761 | ||
762 | t->local = strdup(local); | |
763 | if (!t->local) | |
764 | return -ENOMEM; | |
765 | ||
766 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
767 | if (t->stdin_fd < 0) | |
768 | return -errno; | |
769 | ||
770 | r = transfer_start(t); | |
771 | if (r < 0) | |
772 | return r; | |
773 | ||
774 | object = t->object_path; | |
775 | id = t->id; | |
776 | t = NULL; | |
777 | ||
778 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
779 | } | |
780 | ||
19070062 | 781 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
587fec42 LP |
782 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
783 | int fd, r; | |
784 | const char *local, *object, *format; | |
785 | Manager *m = userdata; | |
786 | TransferType type; | |
787 | uint32_t id; | |
788 | ||
19070062 LP |
789 | assert(msg); |
790 | assert(m); | |
791 | ||
587fec42 LP |
792 | r = bus_verify_polkit_async( |
793 | msg, | |
794 | CAP_SYS_ADMIN, | |
795 | "org.freedesktop.import1.export", | |
403ed0e5 | 796 | NULL, |
587fec42 LP |
797 | false, |
798 | UID_INVALID, | |
799 | &m->polkit_registry, | |
800 | error); | |
801 | if (r < 0) | |
802 | return r; | |
803 | if (r == 0) | |
804 | return 1; /* Will call us back */ | |
805 | ||
806 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
807 | if (r < 0) | |
808 | return r; | |
809 | ||
810 | if (!machine_name_is_valid(local)) | |
811 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
812 | ||
813 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
814 | ||
815 | r = transfer_new(m, &t); | |
816 | if (r < 0) | |
817 | return r; | |
818 | ||
819 | t->type = type; | |
820 | ||
821 | if (!isempty(format)) { | |
822 | t->format = strdup(format); | |
823 | if (!t->format) | |
824 | return -ENOMEM; | |
825 | } | |
826 | ||
827 | t->local = strdup(local); | |
828 | if (!t->local) | |
829 | return -ENOMEM; | |
830 | ||
831 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
832 | if (t->stdout_fd < 0) | |
833 | return -errno; | |
834 | ||
835 | r = transfer_start(t); | |
836 | if (r < 0) | |
837 | return r; | |
838 | ||
839 | object = t->object_path; | |
840 | id = t->id; | |
841 | t = NULL; | |
842 | ||
843 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
844 | } | |
845 | ||
19070062 | 846 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
847 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
848 | const char *remote, *local, *verify, *object; | |
849 | Manager *m = userdata; | |
850 | ImportVerify v; | |
851 | TransferType type; | |
852 | int force, r; | |
853 | uint32_t id; | |
854 | ||
3d7415f4 LP |
855 | assert(msg); |
856 | assert(m); | |
857 | ||
858 | r = bus_verify_polkit_async( | |
859 | msg, | |
860 | CAP_SYS_ADMIN, | |
861 | "org.freedesktop.import1.pull", | |
403ed0e5 | 862 | NULL, |
3d7415f4 | 863 | false, |
c529695e | 864 | UID_INVALID, |
3d7415f4 LP |
865 | &m->polkit_registry, |
866 | error); | |
867 | if (r < 0) | |
868 | return r; | |
869 | if (r == 0) | |
870 | return 1; /* Will call us back */ | |
871 | ||
872 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
873 | if (r < 0) | |
874 | return r; | |
875 | ||
876 | if (!http_url_is_valid(remote)) | |
877 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "URL %s is invalid", remote); | |
878 | ||
879 | if (isempty(local)) | |
880 | local = NULL; | |
881 | else if (!machine_name_is_valid(local)) | |
882 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
883 | ||
884 | if (isempty(verify)) | |
885 | v = IMPORT_VERIFY_SIGNATURE; | |
886 | else | |
887 | v = import_verify_from_string(verify); | |
888 | if (v < 0) | |
889 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
890 | ||
4cee5eed | 891 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
892 | if (r < 0) |
893 | return r; | |
894 | ||
b6e676ce | 895 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; |
3d7415f4 | 896 | |
b43d75c3 | 897 | if (manager_find(m, type, remote)) |
3d7415f4 LP |
898 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); |
899 | ||
900 | r = transfer_new(m, &t); | |
901 | if (r < 0) | |
902 | return r; | |
903 | ||
904 | t->type = type; | |
905 | t->verify = v; | |
906 | t->force_local = force; | |
907 | ||
908 | t->remote = strdup(remote); | |
909 | if (!t->remote) | |
910 | return -ENOMEM; | |
911 | ||
b6e676ce LP |
912 | if (local) { |
913 | t->local = strdup(local); | |
914 | if (!t->local) | |
915 | return -ENOMEM; | |
916 | } | |
3d7415f4 LP |
917 | |
918 | r = transfer_start(t); | |
919 | if (r < 0) | |
920 | return r; | |
921 | ||
922 | object = t->object_path; | |
923 | id = t->id; | |
924 | t = NULL; | |
925 | ||
926 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
927 | } | |
928 | ||
19070062 | 929 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
4afd3348 | 930 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
3d7415f4 LP |
931 | Manager *m = userdata; |
932 | Transfer *t; | |
933 | Iterator i; | |
934 | int r; | |
935 | ||
3d7415f4 LP |
936 | assert(msg); |
937 | assert(m); | |
938 | ||
939 | r = sd_bus_message_new_method_return(msg, &reply); | |
940 | if (r < 0) | |
941 | return r; | |
942 | ||
7079cfef | 943 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
944 | if (r < 0) |
945 | return r; | |
946 | ||
947 | HASHMAP_FOREACH(t, m->transfers, i) { | |
948 | ||
949 | r = sd_bus_message_append( | |
950 | reply, | |
7079cfef | 951 | "(usssdo)", |
3d7415f4 LP |
952 | t->id, |
953 | transfer_type_to_string(t->type), | |
954 | t->remote, | |
955 | t->local, | |
7079cfef | 956 | (double) t->progress_percent / 100.0, |
3d7415f4 LP |
957 | t->object_path); |
958 | if (r < 0) | |
959 | return r; | |
960 | } | |
961 | ||
962 | r = sd_bus_message_close_container(reply); | |
963 | if (r < 0) | |
964 | return r; | |
965 | ||
9030ca46 | 966 | return sd_bus_send(NULL, reply, NULL); |
3d7415f4 LP |
967 | } |
968 | ||
19070062 | 969 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
970 | Transfer *t = userdata; |
971 | int r; | |
972 | ||
3d7415f4 LP |
973 | assert(msg); |
974 | assert(t); | |
975 | ||
976 | r = bus_verify_polkit_async( | |
977 | msg, | |
978 | CAP_SYS_ADMIN, | |
979 | "org.freedesktop.import1.pull", | |
403ed0e5 | 980 | NULL, |
3d7415f4 | 981 | false, |
c529695e | 982 | UID_INVALID, |
3d7415f4 LP |
983 | &t->manager->polkit_registry, |
984 | error); | |
985 | if (r < 0) | |
986 | return r; | |
987 | if (r == 0) | |
988 | return 1; /* Will call us back */ | |
989 | ||
990 | r = transfer_cancel(t); | |
991 | if (r < 0) | |
992 | return r; | |
993 | ||
994 | return sd_bus_reply_method_return(msg, NULL); | |
995 | } | |
996 | ||
19070062 | 997 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
998 | Manager *m = userdata; |
999 | Transfer *t; | |
1000 | uint32_t id; | |
1001 | int r; | |
1002 | ||
3d7415f4 LP |
1003 | assert(msg); |
1004 | assert(m); | |
1005 | ||
1006 | r = bus_verify_polkit_async( | |
1007 | msg, | |
1008 | CAP_SYS_ADMIN, | |
1009 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1010 | NULL, |
3d7415f4 | 1011 | false, |
c529695e | 1012 | UID_INVALID, |
3d7415f4 LP |
1013 | &m->polkit_registry, |
1014 | error); | |
1015 | if (r < 0) | |
1016 | return r; | |
1017 | if (r == 0) | |
1018 | return 1; /* Will call us back */ | |
1019 | ||
1020 | r = sd_bus_message_read(msg, "u", &id); | |
1021 | if (r < 0) | |
1022 | return r; | |
1023 | if (id <= 0) | |
1024 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); | |
1025 | ||
1026 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1027 | if (!t) | |
09d46cfd | 1028 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1029 | |
1030 | r = transfer_cancel(t); | |
1031 | if (r < 0) | |
1032 | return r; | |
1033 | ||
1034 | return sd_bus_reply_method_return(msg, NULL); | |
1035 | } | |
1036 | ||
7079cfef LP |
1037 | static int property_get_progress( |
1038 | sd_bus *bus, | |
1039 | const char *path, | |
1040 | const char *interface, | |
1041 | const char *property, | |
1042 | sd_bus_message *reply, | |
1043 | void *userdata, | |
1044 | sd_bus_error *error) { | |
1045 | ||
1046 | Transfer *t = userdata; | |
1047 | ||
1048 | assert(bus); | |
1049 | assert(reply); | |
1050 | assert(t); | |
1051 | ||
1052 | return sd_bus_message_append(reply, "d", (double) t->progress_percent / 100.0); | |
1053 | } | |
1054 | ||
3d7415f4 LP |
1055 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1056 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1057 | ||
1058 | static const sd_bus_vtable transfer_vtable[] = { | |
1059 | SD_BUS_VTABLE_START(0), | |
1060 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
1061 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1062 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1063 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1064 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1065 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
3d7415f4 LP |
1066 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
1067 | SD_BUS_SIGNAL("LogMessage", "us", 0), | |
1068 | SD_BUS_VTABLE_END, | |
1069 | }; | |
1070 | ||
1071 | static const sd_bus_vtable manager_vtable[] = { | |
1072 | SD_BUS_VTABLE_START(0), | |
b6e676ce LP |
1073 | SD_BUS_METHOD("ImportTar", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1074 | SD_BUS_METHOD("ImportRaw", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
587fec42 LP |
1075 | SD_BUS_METHOD("ExportTar", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1076 | SD_BUS_METHOD("ExportRaw", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
3d7415f4 LP |
1077 | SD_BUS_METHOD("PullTar", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1078 | SD_BUS_METHOD("PullRaw", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
7079cfef | 1079 | SD_BUS_METHOD("ListTransfers", NULL, "a(usssdo)", method_list_transfers, SD_BUS_VTABLE_UNPRIVILEGED), |
3d7415f4 LP |
1080 | SD_BUS_METHOD("CancelTransfer", "u", NULL, method_cancel_transfer, SD_BUS_VTABLE_UNPRIVILEGED), |
1081 | SD_BUS_SIGNAL("TransferNew", "uo", 0), | |
1082 | SD_BUS_SIGNAL("TransferRemoved", "uos", 0), | |
1083 | SD_BUS_VTABLE_END, | |
1084 | }; | |
1085 | ||
1086 | static int transfer_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
1087 | Manager *m = userdata; | |
1088 | Transfer *t; | |
1089 | const char *p; | |
1090 | uint32_t id; | |
1091 | int r; | |
1092 | ||
1093 | assert(bus); | |
1094 | assert(path); | |
1095 | assert(interface); | |
1096 | assert(found); | |
1097 | assert(m); | |
1098 | ||
1099 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1100 | if (!p) | |
1101 | return 0; | |
1102 | ||
1103 | r = safe_atou32(p, &id); | |
1104 | if (r < 0 || id == 0) | |
1105 | return 0; | |
1106 | ||
1107 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1108 | if (!t) | |
1109 | return 0; | |
1110 | ||
1111 | *found = t; | |
1112 | return 1; | |
1113 | } | |
1114 | ||
1115 | static int transfer_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
1116 | _cleanup_strv_free_ char **l = NULL; | |
1117 | Manager *m = userdata; | |
1118 | Transfer *t; | |
1119 | unsigned k = 0; | |
1120 | Iterator i; | |
1121 | ||
1122 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1123 | if (!l) | |
1124 | return -ENOMEM; | |
1125 | ||
1126 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1127 | ||
1128 | l[k] = strdup(t->object_path); | |
1129 | if (!l[k]) | |
1130 | return -ENOMEM; | |
1131 | ||
1132 | k++; | |
1133 | } | |
1134 | ||
1135 | *nodes = l; | |
1136 | l = NULL; | |
1137 | ||
1138 | return 1; | |
1139 | } | |
1140 | ||
1141 | static int manager_add_bus_objects(Manager *m) { | |
1142 | int r; | |
1143 | ||
1144 | assert(m); | |
1145 | ||
1146 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/import1", "org.freedesktop.import1.Manager", manager_vtable, m); | |
1147 | if (r < 0) | |
1148 | return log_error_errno(r, "Failed to register object: %m"); | |
1149 | ||
1150 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/import1/transfer", "org.freedesktop.import1.Transfer", transfer_vtable, transfer_object_find, m); | |
1151 | if (r < 0) | |
1152 | return log_error_errno(r, "Failed to register object: %m"); | |
1153 | ||
1154 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/import1/transfer", transfer_node_enumerator, m); | |
1155 | if (r < 0) | |
1156 | return log_error_errno(r, "Failed to add transfer enumerator: %m"); | |
1157 | ||
1158 | r = sd_bus_request_name(m->bus, "org.freedesktop.import1", 0); | |
1159 | if (r < 0) | |
1160 | return log_error_errno(r, "Failed to register name: %m"); | |
1161 | ||
1162 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1163 | if (r < 0) | |
1164 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1165 | ||
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | static bool manager_check_idle(void *userdata) { | |
1170 | Manager *m = userdata; | |
1171 | ||
1172 | return hashmap_isempty(m->transfers); | |
1173 | } | |
1174 | ||
1175 | static int manager_run(Manager *m) { | |
1176 | assert(m); | |
1177 | ||
1178 | return bus_event_loop_with_idle( | |
1179 | m->event, | |
1180 | m->bus, | |
1181 | "org.freedesktop.import1", | |
1182 | DEFAULT_EXIT_USEC, | |
1183 | manager_check_idle, | |
1184 | m); | |
1185 | } | |
1186 | ||
1187 | int main(int argc, char *argv[]) { | |
1188 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
1189 | int r; | |
1190 | ||
1191 | log_set_target(LOG_TARGET_AUTO); | |
1192 | log_parse_environment(); | |
1193 | log_open(); | |
1194 | ||
1195 | umask(0022); | |
1196 | ||
1197 | if (argc != 1) { | |
1198 | log_error("This program takes no arguments."); | |
1199 | r = -EINVAL; | |
1200 | goto finish; | |
1201 | } | |
1202 | ||
72c0a2c2 | 1203 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); |
3d7415f4 LP |
1204 | |
1205 | r = manager_new(&m); | |
1206 | if (r < 0) { | |
1207 | log_error_errno(r, "Failed to allocate manager object: %m"); | |
1208 | goto finish; | |
1209 | } | |
1210 | ||
1211 | r = manager_add_bus_objects(m); | |
1212 | if (r < 0) | |
1213 | goto finish; | |
1214 | ||
1215 | r = manager_run(m); | |
1216 | if (r < 0) { | |
1217 | log_error_errno(r, "Failed to run event loop: %m"); | |
1218 | goto finish; | |
1219 | } | |
1220 | ||
1221 | finish: | |
1222 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1223 | } |