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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" | |
25 | #include "util.h" | |
26 | #include "strv.h" | |
27 | #include "bus-util.h" | |
28 | #include "bus-common-errors.h" | |
7079cfef LP |
29 | #include "socket-util.h" |
30 | #include "mkdir.h" | |
a97dcc12 | 31 | #include "def.h" |
ce06fdfb | 32 | #include "missing.h" |
432cea00 | 33 | #include "machine-pool.h" |
113b3fc1 | 34 | #include "path-util.h" |
ce06fdfb | 35 | #include "import-util.h" |
0b452006 | 36 | #include "process-util.h" |
24882e06 | 37 | #include "signal-util.h" |
25300b5a | 38 | #include "hostname-util.h" |
3d7415f4 LP |
39 | |
40 | typedef struct Transfer Transfer; | |
41 | typedef struct Manager Manager; | |
42 | ||
43 | typedef enum TransferType { | |
b6e676ce LP |
44 | TRANSFER_IMPORT_TAR, |
45 | TRANSFER_IMPORT_RAW, | |
587fec42 LP |
46 | TRANSFER_EXPORT_TAR, |
47 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
48 | TRANSFER_PULL_TAR, |
49 | TRANSFER_PULL_RAW, | |
50 | TRANSFER_PULL_DKR, | |
3d7415f4 LP |
51 | _TRANSFER_TYPE_MAX, |
52 | _TRANSFER_TYPE_INVALID = -1, | |
53 | } TransferType; | |
54 | ||
55 | struct Transfer { | |
56 | Manager *manager; | |
57 | ||
58 | uint32_t id; | |
59 | char *object_path; | |
60 | ||
61 | TransferType type; | |
62 | ImportVerify verify; | |
63 | ||
64 | char *remote; | |
65 | char *local; | |
66 | bool force_local; | |
b6e676ce | 67 | bool read_only; |
3d7415f4 LP |
68 | |
69 | char *dkr_index_url; | |
587fec42 | 70 | char *format; |
3d7415f4 LP |
71 | |
72 | pid_t pid; | |
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; | |
3d7415f4 LP |
101 | }; |
102 | ||
103 | #define TRANSFERS_MAX 64 | |
104 | ||
105 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
106 | [TRANSFER_IMPORT_TAR] = "import-tar", |
107 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
587fec42 LP |
108 | [TRANSFER_EXPORT_TAR] = "export-tar", |
109 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b6e676ce LP |
110 | [TRANSFER_PULL_TAR] = "pull-tar", |
111 | [TRANSFER_PULL_RAW] = "pull-raw", | |
112 | [TRANSFER_PULL_DKR] = "pull-dkr", | |
3d7415f4 LP |
113 | }; |
114 | ||
b9a5f858 | 115 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
116 | |
117 | static Transfer *transfer_unref(Transfer *t) { | |
118 | if (!t) | |
119 | return NULL; | |
120 | ||
121 | if (t->manager) | |
122 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
123 | ||
124 | sd_event_source_unref(t->pid_event_source); | |
125 | sd_event_source_unref(t->log_event_source); | |
126 | ||
127 | free(t->remote); | |
128 | free(t->local); | |
129 | free(t->dkr_index_url); | |
587fec42 | 130 | free(t->format); |
3d7415f4 LP |
131 | free(t->object_path); |
132 | ||
133 | if (t->pid > 0) { | |
134 | (void) kill_and_sigcont(t->pid, SIGKILL); | |
135 | (void) wait_for_terminate(t->pid, NULL); | |
136 | } | |
137 | ||
138 | safe_close(t->log_fd); | |
b6e676ce | 139 | safe_close(t->stdin_fd); |
587fec42 | 140 | safe_close(t->stdout_fd); |
3d7415f4 LP |
141 | |
142 | free(t); | |
143 | return NULL; | |
144 | } | |
145 | ||
146 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
147 | ||
148 | static int transfer_new(Manager *m, Transfer **ret) { | |
149 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
150 | uint32_t id; | |
151 | int r; | |
152 | ||
153 | assert(m); | |
154 | assert(ret); | |
155 | ||
156 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
157 | return -E2BIG; | |
158 | ||
159 | r = hashmap_ensure_allocated(&m->transfers, &trivial_hash_ops); | |
160 | if (r < 0) | |
161 | return r; | |
162 | ||
163 | t = new0(Transfer, 1); | |
164 | if (!t) | |
165 | return -ENOMEM; | |
166 | ||
167 | t->type = _TRANSFER_TYPE_INVALID; | |
168 | t->log_fd = -1; | |
b6e676ce LP |
169 | t->stdin_fd = -1; |
170 | t->verify = _IMPORT_VERIFY_INVALID; | |
3d7415f4 LP |
171 | |
172 | id = m->current_transfer_id + 1; | |
173 | ||
174 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
175 | return -ENOMEM; | |
176 | ||
177 | r = hashmap_put(m->transfers, UINT32_TO_PTR(id), t); | |
178 | if (r < 0) | |
179 | return r; | |
180 | ||
181 | m->current_transfer_id = id; | |
182 | ||
183 | t->manager = m; | |
184 | t->id = id; | |
185 | ||
186 | *ret = t; | |
187 | t = NULL; | |
188 | ||
189 | return 0; | |
190 | } | |
191 | ||
192 | static void transfer_send_log_line(Transfer *t, const char *line) { | |
193 | int r, priority = LOG_INFO; | |
194 | ||
195 | assert(t); | |
196 | assert(line); | |
197 | ||
198 | syslog_parse_priority(&line, &priority, true); | |
199 | ||
09d46cfd | 200 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
201 | |
202 | r = sd_bus_emit_signal( | |
203 | t->manager->bus, | |
204 | t->object_path, | |
205 | "org.freedesktop.import1.Transfer", | |
206 | "LogMessage", | |
207 | "us", | |
208 | priority, | |
209 | line); | |
210 | if (r < 0) | |
211 | log_error_errno(r, "Cannot emit message: %m"); | |
212 | } | |
213 | ||
214 | static void transfer_send_logs(Transfer *t, bool flush) { | |
215 | assert(t); | |
216 | ||
217 | /* Try to send out all log messages, if we can. But if we | |
218 | * can't we remove the messages from the buffer, but don't | |
219 | * fail */ | |
220 | ||
221 | while (t->log_message_size > 0) { | |
222 | _cleanup_free_ char *n = NULL; | |
223 | char *e; | |
224 | ||
225 | if (t->log_message_size >= sizeof(t->log_message)) | |
226 | e = t->log_message + sizeof(t->log_message); | |
227 | else { | |
228 | char *a, *b; | |
229 | ||
230 | a = memchr(t->log_message, 0, t->log_message_size); | |
231 | b = memchr(t->log_message, '\n', t->log_message_size); | |
232 | ||
233 | if (a && b) | |
234 | e = a < b ? a : b; | |
235 | else if (a) | |
236 | e = a; | |
237 | else | |
238 | e = b; | |
239 | } | |
240 | ||
241 | if (!e) { | |
242 | if (!flush) | |
243 | return; | |
244 | ||
245 | e = t->log_message + t->log_message_size; | |
246 | } | |
247 | ||
248 | n = strndup(t->log_message, e - t->log_message); | |
249 | ||
250 | /* Skip over NUL and newlines */ | |
be3ce301 | 251 | while ((e < t->log_message + t->log_message_size) && (*e == 0 || *e == '\n')) |
3d7415f4 LP |
252 | e++; |
253 | ||
254 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
255 | t->log_message_size -= e - t->log_message; | |
256 | ||
257 | if (!n) { | |
258 | log_oom(); | |
259 | continue; | |
260 | } | |
261 | ||
262 | if (isempty(n)) | |
263 | continue; | |
264 | ||
265 | transfer_send_log_line(t, n); | |
266 | } | |
267 | } | |
268 | ||
269 | static int transfer_finalize(Transfer *t, bool success) { | |
270 | int r; | |
271 | ||
272 | assert(t); | |
273 | ||
274 | transfer_send_logs(t, true); | |
275 | ||
276 | r = sd_bus_emit_signal( | |
277 | t->manager->bus, | |
278 | "/org/freedesktop/import1", | |
279 | "org.freedesktop.import1.Manager", | |
280 | "TransferRemoved", | |
281 | "uos", | |
282 | t->id, | |
283 | t->object_path, | |
284 | success ? "done" : | |
285 | t->n_canceled > 0 ? "canceled" : "failed"); | |
286 | ||
287 | if (r < 0) | |
288 | log_error_errno(r, "Cannot emit message: %m"); | |
289 | ||
290 | transfer_unref(t); | |
291 | return 0; | |
292 | } | |
293 | ||
294 | static int transfer_cancel(Transfer *t) { | |
295 | int r; | |
296 | ||
297 | assert(t); | |
298 | ||
299 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
300 | if (r < 0) | |
301 | return r; | |
302 | ||
303 | t->n_canceled++; | |
304 | return 0; | |
305 | } | |
306 | ||
307 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
308 | Transfer *t = userdata; | |
309 | bool success = false; | |
310 | ||
311 | assert(s); | |
312 | assert(t); | |
313 | ||
314 | if (si->si_code == CLD_EXITED) { | |
315 | if (si->si_status != 0) | |
316 | log_error("Import process failed with exit code %i.", si->si_status); | |
317 | else { | |
318 | log_debug("Import process succeeded."); | |
319 | success = true; | |
320 | } | |
321 | ||
322 | } else if (si->si_code == CLD_KILLED || | |
323 | si->si_code == CLD_DUMPED) | |
324 | ||
325 | log_error("Import process terminated by signal %s.", signal_to_string(si->si_status)); | |
326 | else | |
327 | log_error("Import process failed due to unknown reason."); | |
328 | ||
329 | t->pid = 0; | |
330 | ||
331 | return transfer_finalize(t, success); | |
332 | } | |
333 | ||
334 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
335 | Transfer *t = userdata; | |
336 | ssize_t l; | |
337 | ||
338 | assert(s); | |
339 | assert(t); | |
340 | ||
341 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
342 | if (l <= 0) { | |
343 | /* EOF/read error. We just close the pipe here, and | |
344 | * close the watch, waiting for the SIGCHLD to arrive, | |
345 | * before we do anything else. */ | |
346 | ||
347 | if (l < 0) | |
348 | log_error_errno(errno, "Failed to read log message: %m"); | |
349 | ||
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) { | |
362 | _cleanup_close_pair_ int pipefd[2] = { -1, -1 }; | |
363 | int r; | |
364 | ||
365 | assert(t); | |
366 | assert(t->pid <= 0); | |
367 | ||
368 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
369 | return -errno; | |
370 | ||
371 | t->pid = fork(); | |
372 | if (t->pid < 0) | |
373 | return -errno; | |
374 | if (t->pid == 0) { | |
375 | const char *cmd[] = { | |
587fec42 | 376 | NULL, /* systemd-import, systemd-export or systemd-pull */ |
b6e676ce LP |
377 | NULL, /* tar, raw, dkr */ |
378 | NULL, /* --verify= */ | |
3d7415f4 LP |
379 | NULL, /* verify argument */ |
380 | NULL, /* maybe --force */ | |
b6e676ce | 381 | NULL, /* maybe --read-only */ |
3d7415f4 | 382 | NULL, /* maybe --dkr-index-url */ |
587fec42 LP |
383 | NULL, /* if so: the actual URL */ |
384 | NULL, /* maybe --format= */ | |
385 | NULL, /* if so: the actual format */ | |
3d7415f4 LP |
386 | NULL, /* remote */ |
387 | NULL, /* local */ | |
388 | NULL | |
389 | }; | |
b6e676ce | 390 | unsigned k = 0; |
3d7415f4 LP |
391 | |
392 | /* Child */ | |
393 | ||
ce30c8dc LP |
394 | (void) reset_all_signal_handlers(); |
395 | (void) reset_signal_mask(); | |
3d7415f4 LP |
396 | assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); |
397 | ||
398 | pipefd[0] = safe_close(pipefd[0]); | |
399 | ||
587fec42 | 400 | if (dup2(pipefd[1], STDERR_FILENO) != STDERR_FILENO) { |
3d7415f4 LP |
401 | log_error_errno(errno, "Failed to dup2() fd: %m"); |
402 | _exit(EXIT_FAILURE); | |
403 | } | |
404 | ||
587fec42 LP |
405 | if (t->stdout_fd >= 0) { |
406 | if (dup2(t->stdout_fd, STDOUT_FILENO) != STDOUT_FILENO) { | |
407 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
408 | _exit(EXIT_FAILURE); | |
409 | } | |
410 | ||
411 | if (t->stdout_fd != STDOUT_FILENO) | |
412 | safe_close(t->stdout_fd); | |
413 | } else { | |
414 | if (dup2(pipefd[1], STDOUT_FILENO) != STDOUT_FILENO) { | |
415 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
416 | _exit(EXIT_FAILURE); | |
417 | } | |
3d7415f4 LP |
418 | } |
419 | ||
420 | if (pipefd[1] != STDOUT_FILENO && pipefd[1] != STDERR_FILENO) | |
421 | pipefd[1] = safe_close(pipefd[1]); | |
422 | ||
b6e676ce LP |
423 | if (t->stdin_fd >= 0) { |
424 | if (dup2(t->stdin_fd, STDIN_FILENO) != STDIN_FILENO) { | |
425 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
426 | _exit(EXIT_FAILURE); | |
427 | } | |
428 | ||
429 | if (t->stdin_fd != STDIN_FILENO) | |
430 | safe_close(t->stdin_fd); | |
431 | } else { | |
432 | int null_fd; | |
433 | ||
434 | null_fd = open("/dev/null", O_RDONLY|O_NOCTTY); | |
435 | if (null_fd < 0) { | |
436 | log_error_errno(errno, "Failed to open /dev/null: %m"); | |
437 | _exit(EXIT_FAILURE); | |
438 | } | |
439 | ||
440 | if (dup2(null_fd, STDIN_FILENO) != STDIN_FILENO) { | |
441 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
442 | _exit(EXIT_FAILURE); | |
443 | } | |
444 | ||
445 | if (null_fd != STDIN_FILENO) | |
446 | safe_close(null_fd); | |
3d7415f4 LP |
447 | } |
448 | ||
3d7415f4 LP |
449 | fd_cloexec(STDIN_FILENO, false); |
450 | fd_cloexec(STDOUT_FILENO, false); | |
451 | fd_cloexec(STDERR_FILENO, false); | |
452 | ||
7079cfef LP |
453 | setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1); |
454 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1); | |
3d7415f4 | 455 | |
b6e676ce LP |
456 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_IMPORT_RAW)) |
457 | cmd[k++] = SYSTEMD_IMPORT_PATH; | |
587fec42 LP |
458 | else if (IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) |
459 | cmd[k++] = SYSTEMD_EXPORT_PATH; | |
b6e676ce LP |
460 | else |
461 | cmd[k++] = SYSTEMD_PULL_PATH; | |
462 | ||
587fec42 | 463 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_EXPORT_TAR, TRANSFER_PULL_TAR)) |
b6e676ce | 464 | cmd[k++] = "tar"; |
587fec42 | 465 | else if (IN_SET(t->type, TRANSFER_IMPORT_RAW, TRANSFER_EXPORT_RAW, TRANSFER_PULL_RAW)) |
b6e676ce LP |
466 | cmd[k++] = "raw"; |
467 | else | |
468 | cmd[k++] = "dkr"; | |
469 | ||
470 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
471 | cmd[k++] = "--verify"; | |
472 | cmd[k++] = import_verify_to_string(t->verify); | |
473 | } | |
474 | ||
3d7415f4 LP |
475 | if (t->force_local) |
476 | cmd[k++] = "--force"; | |
b6e676ce LP |
477 | if (t->read_only) |
478 | cmd[k++] = "--read-only"; | |
3d7415f4 LP |
479 | |
480 | if (t->dkr_index_url) { | |
481 | cmd[k++] = "--dkr-index-url"; | |
482 | cmd[k++] = t->dkr_index_url; | |
483 | } | |
484 | ||
587fec42 LP |
485 | if (t->format) { |
486 | cmd[k++] = "--format"; | |
487 | cmd[k++] = t->format; | |
488 | } | |
489 | ||
490 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
491 | if (t->remote) | |
492 | cmd[k++] = t->remote; | |
493 | else | |
494 | cmd[k++] = "-"; | |
495 | } | |
b6e676ce | 496 | |
3d7415f4 LP |
497 | if (t->local) |
498 | cmd[k++] = t->local; | |
499 | cmd[k] = NULL; | |
500 | ||
b6e676ce LP |
501 | execv(cmd[0], (char * const *) cmd); |
502 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
503 | _exit(EXIT_FAILURE); |
504 | } | |
505 | ||
506 | pipefd[1] = safe_close(pipefd[1]); | |
507 | t->log_fd = pipefd[0]; | |
508 | pipefd[0] = -1; | |
509 | ||
b6e676ce LP |
510 | t->stdin_fd = safe_close(t->stdin_fd); |
511 | ||
3d7415f4 LP |
512 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, t->pid, WEXITED, transfer_on_pid, t); |
513 | if (r < 0) | |
514 | return r; | |
515 | ||
516 | r = sd_event_add_io(t->manager->event, &t->log_event_source, t->log_fd, EPOLLIN, transfer_on_log, t); | |
517 | if (r < 0) | |
518 | return r; | |
519 | ||
520 | /* Make sure always process logging before SIGCHLD */ | |
521 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
522 | if (r < 0) | |
523 | return r; | |
524 | ||
525 | r = sd_bus_emit_signal( | |
526 | t->manager->bus, | |
527 | "/org/freedesktop/import1", | |
528 | "org.freedesktop.import1.Manager", | |
529 | "TransferNew", | |
530 | "uo", | |
531 | t->id, | |
532 | t->object_path); | |
533 | if (r < 0) | |
534 | return r; | |
535 | ||
536 | return 0; | |
537 | } | |
538 | ||
539 | static Manager *manager_unref(Manager *m) { | |
540 | Transfer *t; | |
541 | ||
542 | if (!m) | |
543 | return NULL; | |
544 | ||
7079cfef LP |
545 | sd_event_source_unref(m->notify_event_source); |
546 | safe_close(m->notify_fd); | |
547 | ||
3d7415f4 LP |
548 | while ((t = hashmap_first(m->transfers))) |
549 | transfer_unref(t); | |
550 | ||
551 | hashmap_free(m->transfers); | |
552 | ||
553 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
554 | ||
03976f7b | 555 | m->bus = sd_bus_flush_close_unref(m->bus); |
3d7415f4 LP |
556 | sd_event_unref(m->event); |
557 | ||
558 | free(m); | |
559 | return NULL; | |
560 | } | |
561 | ||
562 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
563 | ||
7079cfef LP |
564 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
565 | ||
566 | char buf[NOTIFY_BUFFER_MAX+1]; | |
567 | struct iovec iovec = { | |
568 | .iov_base = buf, | |
569 | .iov_len = sizeof(buf)-1, | |
570 | }; | |
571 | union { | |
572 | struct cmsghdr cmsghdr; | |
573 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
574 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
575 | } control = {}; | |
576 | struct msghdr msghdr = { | |
577 | .msg_iov = &iovec, | |
578 | .msg_iovlen = 1, | |
579 | .msg_control = &control, | |
580 | .msg_controllen = sizeof(control), | |
581 | }; | |
582 | struct ucred *ucred = NULL; | |
583 | Manager *m = userdata; | |
584 | struct cmsghdr *cmsg; | |
585 | unsigned percent; | |
586 | char *p, *e; | |
587 | Transfer *t; | |
588 | Iterator i; | |
589 | ssize_t n; | |
590 | int r; | |
591 | ||
592 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); | |
593 | if (n < 0) { | |
594 | if (errno == EAGAIN || errno == EINTR) | |
595 | return 0; | |
596 | ||
597 | return -errno; | |
598 | } | |
599 | ||
1c8da044 LP |
600 | cmsg_close_all(&msghdr); |
601 | ||
2a1288ff | 602 | CMSG_FOREACH(cmsg, &msghdr) { |
ece174c5 | 603 | if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_CREDENTIALS && cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) |
7079cfef LP |
604 | |
605 | ucred = (struct ucred*) CMSG_DATA(cmsg); | |
7079cfef LP |
606 | } |
607 | ||
608 | if (msghdr.msg_flags & MSG_TRUNC) { | |
609 | log_warning("Got overly long notification datagram, ignoring."); | |
610 | return 0; | |
611 | } | |
612 | ||
613 | if (!ucred || ucred->pid <= 0) { | |
614 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
615 | return 0; | |
616 | } | |
617 | ||
618 | HASHMAP_FOREACH(t, m->transfers, i) | |
619 | if (ucred->pid == t->pid) | |
620 | break; | |
621 | ||
622 | if (!t) { | |
623 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
624 | return 0; | |
625 | } | |
626 | ||
627 | buf[n] = 0; | |
628 | ||
629 | p = startswith(buf, "X_IMPORT_PROGRESS="); | |
630 | if (!p) { | |
631 | p = strstr(buf, "\nX_IMPORT_PROGRESS="); | |
632 | if (!p) | |
633 | return 0; | |
634 | ||
635 | p += 19; | |
636 | } | |
637 | ||
638 | e = strchrnul(p, '\n'); | |
639 | *e = 0; | |
640 | ||
641 | r = safe_atou(p, &percent); | |
642 | if (r < 0 || percent > 100) { | |
643 | log_warning("Got invalid percent value, ignoring."); | |
644 | return 0; | |
645 | } | |
646 | ||
647 | t->progress_percent = percent; | |
648 | ||
649 | log_debug("Got percentage from client: %u%%", percent); | |
650 | return 0; | |
651 | } | |
652 | ||
3d7415f4 LP |
653 | static int manager_new(Manager **ret) { |
654 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
655 | static const union sockaddr_union sa = { |
656 | .un.sun_family = AF_UNIX, | |
657 | .un.sun_path = "/run/systemd/import/notify", | |
658 | }; | |
659 | static const int one = 1; | |
3d7415f4 LP |
660 | int r; |
661 | ||
662 | assert(ret); | |
663 | ||
664 | m = new0(Manager, 1); | |
665 | if (!m) | |
666 | return -ENOMEM; | |
667 | ||
668 | r = sd_event_default(&m->event); | |
669 | if (r < 0) | |
670 | return r; | |
671 | ||
672 | sd_event_set_watchdog(m->event, true); | |
673 | ||
674 | r = sd_bus_default_system(&m->bus); | |
675 | if (r < 0) | |
676 | return r; | |
677 | ||
7079cfef LP |
678 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
679 | if (m->notify_fd < 0) | |
680 | return -errno; | |
681 | ||
682 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
683 | (void) unlink(sa.un.sun_path); | |
684 | ||
685 | if (bind(m->notify_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0) | |
686 | return -errno; | |
687 | ||
688 | if (setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) | |
689 | return -errno; | |
690 | ||
691 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_on_notify, m); | |
692 | if (r < 0) | |
693 | return r; | |
694 | ||
3d7415f4 LP |
695 | *ret = m; |
696 | m = NULL; | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | static Transfer *manager_find(Manager *m, TransferType type, const char *dkr_index_url, const char *remote) { | |
702 | Transfer *t; | |
703 | Iterator i; | |
704 | ||
705 | assert(m); | |
706 | assert(type >= 0); | |
707 | assert(type < _TRANSFER_TYPE_MAX); | |
708 | ||
709 | HASHMAP_FOREACH(t, m->transfers, i) { | |
710 | ||
711 | if (t->type == type && | |
712 | streq_ptr(t->remote, remote) && | |
713 | streq_ptr(t->dkr_index_url, dkr_index_url)) | |
714 | return t; | |
715 | } | |
716 | ||
717 | return NULL; | |
718 | } | |
719 | ||
19070062 | 720 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
b6e676ce LP |
721 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
722 | int fd, force, read_only, r; | |
723 | const char *local, *object; | |
724 | Manager *m = userdata; | |
725 | TransferType type; | |
726 | uint32_t id; | |
727 | ||
19070062 LP |
728 | assert(msg); |
729 | assert(m); | |
730 | ||
b6e676ce LP |
731 | r = bus_verify_polkit_async( |
732 | msg, | |
733 | CAP_SYS_ADMIN, | |
734 | "org.freedesktop.import1.import", | |
403ed0e5 | 735 | NULL, |
b6e676ce LP |
736 | false, |
737 | UID_INVALID, | |
738 | &m->polkit_registry, | |
739 | error); | |
740 | if (r < 0) | |
741 | return r; | |
742 | if (r == 0) | |
743 | return 1; /* Will call us back */ | |
744 | ||
745 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
746 | if (r < 0) | |
747 | return r; | |
748 | ||
749 | if (!machine_name_is_valid(local)) | |
750 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
751 | ||
752 | r = setup_machine_directory((uint64_t) -1, error); | |
753 | if (r < 0) | |
754 | return r; | |
755 | ||
756 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
757 | ||
758 | r = transfer_new(m, &t); | |
759 | if (r < 0) | |
760 | return r; | |
761 | ||
762 | t->type = type; | |
763 | t->force_local = force; | |
764 | t->read_only = read_only; | |
765 | ||
766 | t->local = strdup(local); | |
767 | if (!t->local) | |
768 | return -ENOMEM; | |
769 | ||
770 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
771 | if (t->stdin_fd < 0) | |
772 | return -errno; | |
773 | ||
774 | r = transfer_start(t); | |
775 | if (r < 0) | |
776 | return r; | |
777 | ||
778 | object = t->object_path; | |
779 | id = t->id; | |
780 | t = NULL; | |
781 | ||
782 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
783 | } | |
784 | ||
19070062 | 785 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
587fec42 LP |
786 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
787 | int fd, r; | |
788 | const char *local, *object, *format; | |
789 | Manager *m = userdata; | |
790 | TransferType type; | |
791 | uint32_t id; | |
792 | ||
19070062 LP |
793 | assert(msg); |
794 | assert(m); | |
795 | ||
587fec42 LP |
796 | r = bus_verify_polkit_async( |
797 | msg, | |
798 | CAP_SYS_ADMIN, | |
799 | "org.freedesktop.import1.export", | |
403ed0e5 | 800 | NULL, |
587fec42 LP |
801 | false, |
802 | UID_INVALID, | |
803 | &m->polkit_registry, | |
804 | error); | |
805 | if (r < 0) | |
806 | return r; | |
807 | if (r == 0) | |
808 | return 1; /* Will call us back */ | |
809 | ||
810 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
811 | if (r < 0) | |
812 | return r; | |
813 | ||
814 | if (!machine_name_is_valid(local)) | |
815 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
816 | ||
817 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
818 | ||
819 | r = transfer_new(m, &t); | |
820 | if (r < 0) | |
821 | return r; | |
822 | ||
823 | t->type = type; | |
824 | ||
825 | if (!isempty(format)) { | |
826 | t->format = strdup(format); | |
827 | if (!t->format) | |
828 | return -ENOMEM; | |
829 | } | |
830 | ||
831 | t->local = strdup(local); | |
832 | if (!t->local) | |
833 | return -ENOMEM; | |
834 | ||
835 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
836 | if (t->stdout_fd < 0) | |
837 | return -errno; | |
838 | ||
839 | r = transfer_start(t); | |
840 | if (r < 0) | |
841 | return r; | |
842 | ||
843 | object = t->object_path; | |
844 | id = t->id; | |
845 | t = NULL; | |
846 | ||
847 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
848 | } | |
849 | ||
19070062 | 850 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
851 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
852 | const char *remote, *local, *verify, *object; | |
853 | Manager *m = userdata; | |
854 | ImportVerify v; | |
855 | TransferType type; | |
856 | int force, r; | |
857 | uint32_t id; | |
858 | ||
3d7415f4 LP |
859 | assert(msg); |
860 | assert(m); | |
861 | ||
862 | r = bus_verify_polkit_async( | |
863 | msg, | |
864 | CAP_SYS_ADMIN, | |
865 | "org.freedesktop.import1.pull", | |
403ed0e5 | 866 | NULL, |
3d7415f4 | 867 | false, |
c529695e | 868 | UID_INVALID, |
3d7415f4 LP |
869 | &m->polkit_registry, |
870 | error); | |
871 | if (r < 0) | |
872 | return r; | |
873 | if (r == 0) | |
874 | return 1; /* Will call us back */ | |
875 | ||
876 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
877 | if (r < 0) | |
878 | return r; | |
879 | ||
880 | if (!http_url_is_valid(remote)) | |
881 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "URL %s is invalid", remote); | |
882 | ||
883 | if (isempty(local)) | |
884 | local = NULL; | |
885 | else if (!machine_name_is_valid(local)) | |
886 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
887 | ||
888 | if (isempty(verify)) | |
889 | v = IMPORT_VERIFY_SIGNATURE; | |
890 | else | |
891 | v = import_verify_from_string(verify); | |
892 | if (v < 0) | |
893 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
894 | ||
4cee5eed | 895 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
896 | if (r < 0) |
897 | return r; | |
898 | ||
b6e676ce | 899 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; |
3d7415f4 LP |
900 | |
901 | if (manager_find(m, type, NULL, remote)) | |
902 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); | |
903 | ||
904 | r = transfer_new(m, &t); | |
905 | if (r < 0) | |
906 | return r; | |
907 | ||
908 | t->type = type; | |
909 | t->verify = v; | |
910 | t->force_local = force; | |
911 | ||
912 | t->remote = strdup(remote); | |
913 | if (!t->remote) | |
914 | return -ENOMEM; | |
915 | ||
b6e676ce LP |
916 | if (local) { |
917 | t->local = strdup(local); | |
918 | if (!t->local) | |
919 | return -ENOMEM; | |
920 | } | |
3d7415f4 LP |
921 | |
922 | r = transfer_start(t); | |
923 | if (r < 0) | |
924 | return r; | |
925 | ||
926 | object = t->object_path; | |
927 | id = t->id; | |
928 | t = NULL; | |
929 | ||
930 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
931 | } | |
932 | ||
19070062 | 933 | static int method_pull_dkr(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
934 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
935 | const char *index_url, *remote, *tag, *local, *verify, *object; | |
936 | Manager *m = userdata; | |
937 | ImportVerify v; | |
938 | int force, r; | |
939 | uint32_t id; | |
940 | ||
3d7415f4 LP |
941 | assert(msg); |
942 | assert(m); | |
943 | ||
944 | r = bus_verify_polkit_async( | |
945 | msg, | |
946 | CAP_SYS_ADMIN, | |
947 | "org.freedesktop.import1.pull", | |
403ed0e5 | 948 | NULL, |
3d7415f4 | 949 | false, |
c529695e | 950 | UID_INVALID, |
3d7415f4 LP |
951 | &m->polkit_registry, |
952 | error); | |
953 | if (r < 0) | |
954 | return r; | |
955 | if (r == 0) | |
956 | return 1; /* Will call us back */ | |
957 | ||
958 | r = sd_bus_message_read(msg, "sssssb", &index_url, &remote, &tag, &local, &verify, &force); | |
959 | if (r < 0) | |
960 | return r; | |
961 | ||
962 | if (isempty(index_url)) | |
963 | index_url = DEFAULT_DKR_INDEX_URL; | |
964 | if (!index_url) | |
965 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL must be specified."); | |
966 | if (!http_url_is_valid(index_url)) | |
967 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL %s is invalid", index_url); | |
968 | ||
969 | if (!dkr_name_is_valid(remote)) | |
970 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Remote name %s is not valid", remote); | |
971 | ||
972 | if (isempty(tag)) | |
973 | tag = "latest"; | |
974 | else if (!dkr_tag_is_valid(tag)) | |
975 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Tag %s is not valid", tag); | |
976 | ||
977 | if (isempty(local)) | |
978 | local = NULL; | |
979 | else if (!machine_name_is_valid(local)) | |
980 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
981 | ||
982 | if (isempty(verify)) | |
983 | v = IMPORT_VERIFY_SIGNATURE; | |
984 | else | |
985 | v = import_verify_from_string(verify); | |
986 | if (v < 0) | |
987 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
988 | ||
989 | if (v != IMPORT_VERIFY_NO) | |
990 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "DKR does not support verification."); | |
991 | ||
4cee5eed | 992 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
993 | if (r < 0) |
994 | return r; | |
995 | ||
b6e676ce | 996 | if (manager_find(m, TRANSFER_PULL_DKR, index_url, remote)) |
3d7415f4 LP |
997 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); |
998 | ||
999 | r = transfer_new(m, &t); | |
1000 | if (r < 0) | |
1001 | return r; | |
1002 | ||
b6e676ce | 1003 | t->type = TRANSFER_PULL_DKR; |
3d7415f4 LP |
1004 | t->verify = v; |
1005 | t->force_local = force; | |
1006 | ||
1007 | t->dkr_index_url = strdup(index_url); | |
1008 | if (!t->dkr_index_url) | |
1009 | return -ENOMEM; | |
1010 | ||
1011 | t->remote = strjoin(remote, ":", tag, NULL); | |
1012 | if (!t->remote) | |
1013 | return -ENOMEM; | |
1014 | ||
b6e676ce LP |
1015 | if (local) { |
1016 | t->local = strdup(local); | |
1017 | if (!t->local) | |
1018 | return -ENOMEM; | |
1019 | } | |
3d7415f4 LP |
1020 | |
1021 | r = transfer_start(t); | |
1022 | if (r < 0) | |
1023 | return r; | |
1024 | ||
1025 | object = t->object_path; | |
1026 | id = t->id; | |
1027 | t = NULL; | |
1028 | ||
1029 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
1030 | } | |
1031 | ||
19070062 | 1032 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1033 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
1034 | Manager *m = userdata; | |
1035 | Transfer *t; | |
1036 | Iterator i; | |
1037 | int r; | |
1038 | ||
3d7415f4 LP |
1039 | assert(msg); |
1040 | assert(m); | |
1041 | ||
1042 | r = sd_bus_message_new_method_return(msg, &reply); | |
1043 | if (r < 0) | |
1044 | return r; | |
1045 | ||
7079cfef | 1046 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
1047 | if (r < 0) |
1048 | return r; | |
1049 | ||
1050 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1051 | ||
1052 | r = sd_bus_message_append( | |
1053 | reply, | |
7079cfef | 1054 | "(usssdo)", |
3d7415f4 LP |
1055 | t->id, |
1056 | transfer_type_to_string(t->type), | |
1057 | t->remote, | |
1058 | t->local, | |
7079cfef | 1059 | (double) t->progress_percent / 100.0, |
3d7415f4 LP |
1060 | t->object_path); |
1061 | if (r < 0) | |
1062 | return r; | |
1063 | } | |
1064 | ||
1065 | r = sd_bus_message_close_container(reply); | |
1066 | if (r < 0) | |
1067 | return r; | |
1068 | ||
9030ca46 | 1069 | return sd_bus_send(NULL, reply, NULL); |
3d7415f4 LP |
1070 | } |
1071 | ||
19070062 | 1072 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1073 | Transfer *t = userdata; |
1074 | int r; | |
1075 | ||
3d7415f4 LP |
1076 | assert(msg); |
1077 | assert(t); | |
1078 | ||
1079 | r = bus_verify_polkit_async( | |
1080 | msg, | |
1081 | CAP_SYS_ADMIN, | |
1082 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1083 | NULL, |
3d7415f4 | 1084 | false, |
c529695e | 1085 | UID_INVALID, |
3d7415f4 LP |
1086 | &t->manager->polkit_registry, |
1087 | error); | |
1088 | if (r < 0) | |
1089 | return r; | |
1090 | if (r == 0) | |
1091 | return 1; /* Will call us back */ | |
1092 | ||
1093 | r = transfer_cancel(t); | |
1094 | if (r < 0) | |
1095 | return r; | |
1096 | ||
1097 | return sd_bus_reply_method_return(msg, NULL); | |
1098 | } | |
1099 | ||
19070062 | 1100 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1101 | Manager *m = userdata; |
1102 | Transfer *t; | |
1103 | uint32_t id; | |
1104 | int r; | |
1105 | ||
3d7415f4 LP |
1106 | assert(msg); |
1107 | assert(m); | |
1108 | ||
1109 | r = bus_verify_polkit_async( | |
1110 | msg, | |
1111 | CAP_SYS_ADMIN, | |
1112 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1113 | NULL, |
3d7415f4 | 1114 | false, |
c529695e | 1115 | UID_INVALID, |
3d7415f4 LP |
1116 | &m->polkit_registry, |
1117 | error); | |
1118 | if (r < 0) | |
1119 | return r; | |
1120 | if (r == 0) | |
1121 | return 1; /* Will call us back */ | |
1122 | ||
1123 | r = sd_bus_message_read(msg, "u", &id); | |
1124 | if (r < 0) | |
1125 | return r; | |
1126 | if (id <= 0) | |
1127 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); | |
1128 | ||
1129 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1130 | if (!t) | |
09d46cfd | 1131 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1132 | |
1133 | r = transfer_cancel(t); | |
1134 | if (r < 0) | |
1135 | return r; | |
1136 | ||
1137 | return sd_bus_reply_method_return(msg, NULL); | |
1138 | } | |
1139 | ||
7079cfef LP |
1140 | static int property_get_progress( |
1141 | sd_bus *bus, | |
1142 | const char *path, | |
1143 | const char *interface, | |
1144 | const char *property, | |
1145 | sd_bus_message *reply, | |
1146 | void *userdata, | |
1147 | sd_bus_error *error) { | |
1148 | ||
1149 | Transfer *t = userdata; | |
1150 | ||
1151 | assert(bus); | |
1152 | assert(reply); | |
1153 | assert(t); | |
1154 | ||
1155 | return sd_bus_message_append(reply, "d", (double) t->progress_percent / 100.0); | |
1156 | } | |
1157 | ||
3d7415f4 LP |
1158 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1159 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1160 | ||
1161 | static const sd_bus_vtable transfer_vtable[] = { | |
1162 | SD_BUS_VTABLE_START(0), | |
1163 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
1164 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1165 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1166 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1167 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1168 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
3d7415f4 LP |
1169 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
1170 | SD_BUS_SIGNAL("LogMessage", "us", 0), | |
1171 | SD_BUS_VTABLE_END, | |
1172 | }; | |
1173 | ||
1174 | static const sd_bus_vtable manager_vtable[] = { | |
1175 | SD_BUS_VTABLE_START(0), | |
b6e676ce LP |
1176 | SD_BUS_METHOD("ImportTar", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1177 | SD_BUS_METHOD("ImportRaw", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
587fec42 LP |
1178 | SD_BUS_METHOD("ExportTar", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1179 | SD_BUS_METHOD("ExportRaw", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
3d7415f4 LP |
1180 | SD_BUS_METHOD("PullTar", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1181 | SD_BUS_METHOD("PullRaw", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1182 | SD_BUS_METHOD("PullDkr", "sssssb", "uo", method_pull_dkr, SD_BUS_VTABLE_UNPRIVILEGED), | |
7079cfef | 1183 | SD_BUS_METHOD("ListTransfers", NULL, "a(usssdo)", method_list_transfers, SD_BUS_VTABLE_UNPRIVILEGED), |
3d7415f4 LP |
1184 | SD_BUS_METHOD("CancelTransfer", "u", NULL, method_cancel_transfer, SD_BUS_VTABLE_UNPRIVILEGED), |
1185 | SD_BUS_SIGNAL("TransferNew", "uo", 0), | |
1186 | SD_BUS_SIGNAL("TransferRemoved", "uos", 0), | |
1187 | SD_BUS_VTABLE_END, | |
1188 | }; | |
1189 | ||
1190 | static int transfer_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
1191 | Manager *m = userdata; | |
1192 | Transfer *t; | |
1193 | const char *p; | |
1194 | uint32_t id; | |
1195 | int r; | |
1196 | ||
1197 | assert(bus); | |
1198 | assert(path); | |
1199 | assert(interface); | |
1200 | assert(found); | |
1201 | assert(m); | |
1202 | ||
1203 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1204 | if (!p) | |
1205 | return 0; | |
1206 | ||
1207 | r = safe_atou32(p, &id); | |
1208 | if (r < 0 || id == 0) | |
1209 | return 0; | |
1210 | ||
1211 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1212 | if (!t) | |
1213 | return 0; | |
1214 | ||
1215 | *found = t; | |
1216 | return 1; | |
1217 | } | |
1218 | ||
1219 | static int transfer_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
1220 | _cleanup_strv_free_ char **l = NULL; | |
1221 | Manager *m = userdata; | |
1222 | Transfer *t; | |
1223 | unsigned k = 0; | |
1224 | Iterator i; | |
1225 | ||
1226 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1227 | if (!l) | |
1228 | return -ENOMEM; | |
1229 | ||
1230 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1231 | ||
1232 | l[k] = strdup(t->object_path); | |
1233 | if (!l[k]) | |
1234 | return -ENOMEM; | |
1235 | ||
1236 | k++; | |
1237 | } | |
1238 | ||
1239 | *nodes = l; | |
1240 | l = NULL; | |
1241 | ||
1242 | return 1; | |
1243 | } | |
1244 | ||
1245 | static int manager_add_bus_objects(Manager *m) { | |
1246 | int r; | |
1247 | ||
1248 | assert(m); | |
1249 | ||
1250 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/import1", "org.freedesktop.import1.Manager", manager_vtable, m); | |
1251 | if (r < 0) | |
1252 | return log_error_errno(r, "Failed to register object: %m"); | |
1253 | ||
1254 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/import1/transfer", "org.freedesktop.import1.Transfer", transfer_vtable, transfer_object_find, m); | |
1255 | if (r < 0) | |
1256 | return log_error_errno(r, "Failed to register object: %m"); | |
1257 | ||
1258 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/import1/transfer", transfer_node_enumerator, m); | |
1259 | if (r < 0) | |
1260 | return log_error_errno(r, "Failed to add transfer enumerator: %m"); | |
1261 | ||
1262 | r = sd_bus_request_name(m->bus, "org.freedesktop.import1", 0); | |
1263 | if (r < 0) | |
1264 | return log_error_errno(r, "Failed to register name: %m"); | |
1265 | ||
1266 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1267 | if (r < 0) | |
1268 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1269 | ||
1270 | return 0; | |
1271 | } | |
1272 | ||
1273 | static bool manager_check_idle(void *userdata) { | |
1274 | Manager *m = userdata; | |
1275 | ||
1276 | return hashmap_isempty(m->transfers); | |
1277 | } | |
1278 | ||
1279 | static int manager_run(Manager *m) { | |
1280 | assert(m); | |
1281 | ||
1282 | return bus_event_loop_with_idle( | |
1283 | m->event, | |
1284 | m->bus, | |
1285 | "org.freedesktop.import1", | |
1286 | DEFAULT_EXIT_USEC, | |
1287 | manager_check_idle, | |
1288 | m); | |
1289 | } | |
1290 | ||
1291 | int main(int argc, char *argv[]) { | |
1292 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
1293 | int r; | |
1294 | ||
1295 | log_set_target(LOG_TARGET_AUTO); | |
1296 | log_parse_environment(); | |
1297 | log_open(); | |
1298 | ||
1299 | umask(0022); | |
1300 | ||
1301 | if (argc != 1) { | |
1302 | log_error("This program takes no arguments."); | |
1303 | r = -EINVAL; | |
1304 | goto finish; | |
1305 | } | |
1306 | ||
72c0a2c2 | 1307 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); |
3d7415f4 LP |
1308 | |
1309 | r = manager_new(&m); | |
1310 | if (r < 0) { | |
1311 | log_error_errno(r, "Failed to allocate manager object: %m"); | |
1312 | goto finish; | |
1313 | } | |
1314 | ||
1315 | r = manager_add_bus_objects(m); | |
1316 | if (r < 0) | |
1317 | goto finish; | |
1318 | ||
1319 | r = manager_run(m); | |
1320 | if (r < 0) { | |
1321 | log_error_errno(r, "Failed to run event loop: %m"); | |
1322 | goto finish; | |
1323 | } | |
1324 | ||
1325 | finish: | |
1326 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1327 | } |