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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" |
3d7415f4 LP |
37 | |
38 | typedef struct Transfer Transfer; | |
39 | typedef struct Manager Manager; | |
40 | ||
41 | typedef enum TransferType { | |
b6e676ce LP |
42 | TRANSFER_IMPORT_TAR, |
43 | TRANSFER_IMPORT_RAW, | |
587fec42 LP |
44 | TRANSFER_EXPORT_TAR, |
45 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
46 | TRANSFER_PULL_TAR, |
47 | TRANSFER_PULL_RAW, | |
48 | TRANSFER_PULL_DKR, | |
3d7415f4 LP |
49 | _TRANSFER_TYPE_MAX, |
50 | _TRANSFER_TYPE_INVALID = -1, | |
51 | } TransferType; | |
52 | ||
53 | struct Transfer { | |
54 | Manager *manager; | |
55 | ||
56 | uint32_t id; | |
57 | char *object_path; | |
58 | ||
59 | TransferType type; | |
60 | ImportVerify verify; | |
61 | ||
62 | char *remote; | |
63 | char *local; | |
64 | bool force_local; | |
b6e676ce | 65 | bool read_only; |
3d7415f4 LP |
66 | |
67 | char *dkr_index_url; | |
587fec42 | 68 | char *format; |
3d7415f4 LP |
69 | |
70 | pid_t pid; | |
71 | ||
72 | int log_fd; | |
73 | ||
74 | char log_message[LINE_MAX]; | |
75 | size_t log_message_size; | |
76 | ||
77 | sd_event_source *pid_event_source; | |
78 | sd_event_source *log_event_source; | |
79 | ||
80 | unsigned n_canceled; | |
7079cfef | 81 | unsigned progress_percent; |
b6e676ce LP |
82 | |
83 | int stdin_fd; | |
587fec42 | 84 | int stdout_fd; |
3d7415f4 LP |
85 | }; |
86 | ||
87 | struct Manager { | |
88 | sd_event *event; | |
89 | sd_bus *bus; | |
90 | ||
91 | uint32_t current_transfer_id; | |
92 | Hashmap *transfers; | |
93 | ||
94 | Hashmap *polkit_registry; | |
7079cfef LP |
95 | |
96 | int notify_fd; | |
97 | ||
98 | sd_event_source *notify_event_source; | |
3d7415f4 LP |
99 | }; |
100 | ||
101 | #define TRANSFERS_MAX 64 | |
102 | ||
103 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
104 | [TRANSFER_IMPORT_TAR] = "import-tar", |
105 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
587fec42 LP |
106 | [TRANSFER_EXPORT_TAR] = "export-tar", |
107 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b6e676ce LP |
108 | [TRANSFER_PULL_TAR] = "pull-tar", |
109 | [TRANSFER_PULL_RAW] = "pull-raw", | |
110 | [TRANSFER_PULL_DKR] = "pull-dkr", | |
3d7415f4 LP |
111 | }; |
112 | ||
b9a5f858 | 113 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
114 | |
115 | static Transfer *transfer_unref(Transfer *t) { | |
116 | if (!t) | |
117 | return NULL; | |
118 | ||
119 | if (t->manager) | |
120 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
121 | ||
122 | sd_event_source_unref(t->pid_event_source); | |
123 | sd_event_source_unref(t->log_event_source); | |
124 | ||
125 | free(t->remote); | |
126 | free(t->local); | |
127 | free(t->dkr_index_url); | |
587fec42 | 128 | free(t->format); |
3d7415f4 LP |
129 | free(t->object_path); |
130 | ||
131 | if (t->pid > 0) { | |
132 | (void) kill_and_sigcont(t->pid, SIGKILL); | |
133 | (void) wait_for_terminate(t->pid, NULL); | |
134 | } | |
135 | ||
136 | safe_close(t->log_fd); | |
b6e676ce | 137 | safe_close(t->stdin_fd); |
587fec42 | 138 | safe_close(t->stdout_fd); |
3d7415f4 LP |
139 | |
140 | free(t); | |
141 | return NULL; | |
142 | } | |
143 | ||
144 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
145 | ||
146 | static int transfer_new(Manager *m, Transfer **ret) { | |
147 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
148 | uint32_t id; | |
149 | int r; | |
150 | ||
151 | assert(m); | |
152 | assert(ret); | |
153 | ||
154 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
155 | return -E2BIG; | |
156 | ||
157 | r = hashmap_ensure_allocated(&m->transfers, &trivial_hash_ops); | |
158 | if (r < 0) | |
159 | return r; | |
160 | ||
161 | t = new0(Transfer, 1); | |
162 | if (!t) | |
163 | return -ENOMEM; | |
164 | ||
165 | t->type = _TRANSFER_TYPE_INVALID; | |
166 | t->log_fd = -1; | |
b6e676ce LP |
167 | t->stdin_fd = -1; |
168 | t->verify = _IMPORT_VERIFY_INVALID; | |
3d7415f4 LP |
169 | |
170 | id = m->current_transfer_id + 1; | |
171 | ||
172 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
173 | return -ENOMEM; | |
174 | ||
175 | r = hashmap_put(m->transfers, UINT32_TO_PTR(id), t); | |
176 | if (r < 0) | |
177 | return r; | |
178 | ||
179 | m->current_transfer_id = id; | |
180 | ||
181 | t->manager = m; | |
182 | t->id = id; | |
183 | ||
184 | *ret = t; | |
185 | t = NULL; | |
186 | ||
187 | return 0; | |
188 | } | |
189 | ||
190 | static void transfer_send_log_line(Transfer *t, const char *line) { | |
191 | int r, priority = LOG_INFO; | |
192 | ||
193 | assert(t); | |
194 | assert(line); | |
195 | ||
196 | syslog_parse_priority(&line, &priority, true); | |
197 | ||
09d46cfd | 198 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
199 | |
200 | r = sd_bus_emit_signal( | |
201 | t->manager->bus, | |
202 | t->object_path, | |
203 | "org.freedesktop.import1.Transfer", | |
204 | "LogMessage", | |
205 | "us", | |
206 | priority, | |
207 | line); | |
208 | if (r < 0) | |
209 | log_error_errno(r, "Cannot emit message: %m"); | |
210 | } | |
211 | ||
212 | static void transfer_send_logs(Transfer *t, bool flush) { | |
213 | assert(t); | |
214 | ||
215 | /* Try to send out all log messages, if we can. But if we | |
216 | * can't we remove the messages from the buffer, but don't | |
217 | * fail */ | |
218 | ||
219 | while (t->log_message_size > 0) { | |
220 | _cleanup_free_ char *n = NULL; | |
221 | char *e; | |
222 | ||
223 | if (t->log_message_size >= sizeof(t->log_message)) | |
224 | e = t->log_message + sizeof(t->log_message); | |
225 | else { | |
226 | char *a, *b; | |
227 | ||
228 | a = memchr(t->log_message, 0, t->log_message_size); | |
229 | b = memchr(t->log_message, '\n', t->log_message_size); | |
230 | ||
231 | if (a && b) | |
232 | e = a < b ? a : b; | |
233 | else if (a) | |
234 | e = a; | |
235 | else | |
236 | e = b; | |
237 | } | |
238 | ||
239 | if (!e) { | |
240 | if (!flush) | |
241 | return; | |
242 | ||
243 | e = t->log_message + t->log_message_size; | |
244 | } | |
245 | ||
246 | n = strndup(t->log_message, e - t->log_message); | |
247 | ||
248 | /* Skip over NUL and newlines */ | |
be3ce301 | 249 | while ((e < t->log_message + t->log_message_size) && (*e == 0 || *e == '\n')) |
3d7415f4 LP |
250 | e++; |
251 | ||
252 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
253 | t->log_message_size -= e - t->log_message; | |
254 | ||
255 | if (!n) { | |
256 | log_oom(); | |
257 | continue; | |
258 | } | |
259 | ||
260 | if (isempty(n)) | |
261 | continue; | |
262 | ||
263 | transfer_send_log_line(t, n); | |
264 | } | |
265 | } | |
266 | ||
267 | static int transfer_finalize(Transfer *t, bool success) { | |
268 | int r; | |
269 | ||
270 | assert(t); | |
271 | ||
272 | transfer_send_logs(t, true); | |
273 | ||
274 | r = sd_bus_emit_signal( | |
275 | t->manager->bus, | |
276 | "/org/freedesktop/import1", | |
277 | "org.freedesktop.import1.Manager", | |
278 | "TransferRemoved", | |
279 | "uos", | |
280 | t->id, | |
281 | t->object_path, | |
282 | success ? "done" : | |
283 | t->n_canceled > 0 ? "canceled" : "failed"); | |
284 | ||
285 | if (r < 0) | |
286 | log_error_errno(r, "Cannot emit message: %m"); | |
287 | ||
288 | transfer_unref(t); | |
289 | return 0; | |
290 | } | |
291 | ||
292 | static int transfer_cancel(Transfer *t) { | |
293 | int r; | |
294 | ||
295 | assert(t); | |
296 | ||
297 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
298 | if (r < 0) | |
299 | return r; | |
300 | ||
301 | t->n_canceled++; | |
302 | return 0; | |
303 | } | |
304 | ||
305 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
306 | Transfer *t = userdata; | |
307 | bool success = false; | |
308 | ||
309 | assert(s); | |
310 | assert(t); | |
311 | ||
312 | if (si->si_code == CLD_EXITED) { | |
313 | if (si->si_status != 0) | |
314 | log_error("Import process failed with exit code %i.", si->si_status); | |
315 | else { | |
316 | log_debug("Import process succeeded."); | |
317 | success = true; | |
318 | } | |
319 | ||
320 | } else if (si->si_code == CLD_KILLED || | |
321 | si->si_code == CLD_DUMPED) | |
322 | ||
323 | log_error("Import process terminated by signal %s.", signal_to_string(si->si_status)); | |
324 | else | |
325 | log_error("Import process failed due to unknown reason."); | |
326 | ||
327 | t->pid = 0; | |
328 | ||
329 | return transfer_finalize(t, success); | |
330 | } | |
331 | ||
332 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
333 | Transfer *t = userdata; | |
334 | ssize_t l; | |
335 | ||
336 | assert(s); | |
337 | assert(t); | |
338 | ||
339 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
340 | if (l <= 0) { | |
341 | /* EOF/read error. We just close the pipe here, and | |
342 | * close the watch, waiting for the SIGCHLD to arrive, | |
343 | * before we do anything else. */ | |
344 | ||
345 | if (l < 0) | |
346 | log_error_errno(errno, "Failed to read log message: %m"); | |
347 | ||
348 | t->log_event_source = sd_event_source_unref(t->log_event_source); | |
349 | return 0; | |
350 | } | |
351 | ||
352 | t->log_message_size += l; | |
353 | ||
354 | transfer_send_logs(t, false); | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | static int transfer_start(Transfer *t) { | |
360 | _cleanup_close_pair_ int pipefd[2] = { -1, -1 }; | |
361 | int r; | |
362 | ||
363 | assert(t); | |
364 | assert(t->pid <= 0); | |
365 | ||
366 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
367 | return -errno; | |
368 | ||
369 | t->pid = fork(); | |
370 | if (t->pid < 0) | |
371 | return -errno; | |
372 | if (t->pid == 0) { | |
373 | const char *cmd[] = { | |
587fec42 | 374 | NULL, /* systemd-import, systemd-export or systemd-pull */ |
b6e676ce LP |
375 | NULL, /* tar, raw, dkr */ |
376 | NULL, /* --verify= */ | |
3d7415f4 LP |
377 | NULL, /* verify argument */ |
378 | NULL, /* maybe --force */ | |
b6e676ce | 379 | NULL, /* maybe --read-only */ |
3d7415f4 | 380 | NULL, /* maybe --dkr-index-url */ |
587fec42 LP |
381 | NULL, /* if so: the actual URL */ |
382 | NULL, /* maybe --format= */ | |
383 | NULL, /* if so: the actual format */ | |
3d7415f4 LP |
384 | NULL, /* remote */ |
385 | NULL, /* local */ | |
386 | NULL | |
387 | }; | |
b6e676ce | 388 | unsigned k = 0; |
3d7415f4 LP |
389 | |
390 | /* Child */ | |
391 | ||
392 | reset_all_signal_handlers(); | |
393 | reset_signal_mask(); | |
394 | assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); | |
395 | ||
396 | pipefd[0] = safe_close(pipefd[0]); | |
397 | ||
587fec42 | 398 | if (dup2(pipefd[1], STDERR_FILENO) != STDERR_FILENO) { |
3d7415f4 LP |
399 | log_error_errno(errno, "Failed to dup2() fd: %m"); |
400 | _exit(EXIT_FAILURE); | |
401 | } | |
402 | ||
587fec42 LP |
403 | if (t->stdout_fd >= 0) { |
404 | if (dup2(t->stdout_fd, STDOUT_FILENO) != STDOUT_FILENO) { | |
405 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
406 | _exit(EXIT_FAILURE); | |
407 | } | |
408 | ||
409 | if (t->stdout_fd != STDOUT_FILENO) | |
410 | safe_close(t->stdout_fd); | |
411 | } else { | |
412 | if (dup2(pipefd[1], STDOUT_FILENO) != STDOUT_FILENO) { | |
413 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
414 | _exit(EXIT_FAILURE); | |
415 | } | |
3d7415f4 LP |
416 | } |
417 | ||
418 | if (pipefd[1] != STDOUT_FILENO && pipefd[1] != STDERR_FILENO) | |
419 | pipefd[1] = safe_close(pipefd[1]); | |
420 | ||
b6e676ce LP |
421 | if (t->stdin_fd >= 0) { |
422 | if (dup2(t->stdin_fd, STDIN_FILENO) != STDIN_FILENO) { | |
423 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
424 | _exit(EXIT_FAILURE); | |
425 | } | |
426 | ||
427 | if (t->stdin_fd != STDIN_FILENO) | |
428 | safe_close(t->stdin_fd); | |
429 | } else { | |
430 | int null_fd; | |
431 | ||
432 | null_fd = open("/dev/null", O_RDONLY|O_NOCTTY); | |
433 | if (null_fd < 0) { | |
434 | log_error_errno(errno, "Failed to open /dev/null: %m"); | |
435 | _exit(EXIT_FAILURE); | |
436 | } | |
437 | ||
438 | if (dup2(null_fd, STDIN_FILENO) != STDIN_FILENO) { | |
439 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
440 | _exit(EXIT_FAILURE); | |
441 | } | |
442 | ||
443 | if (null_fd != STDIN_FILENO) | |
444 | safe_close(null_fd); | |
3d7415f4 LP |
445 | } |
446 | ||
3d7415f4 LP |
447 | fd_cloexec(STDIN_FILENO, false); |
448 | fd_cloexec(STDOUT_FILENO, false); | |
449 | fd_cloexec(STDERR_FILENO, false); | |
450 | ||
7079cfef LP |
451 | setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1); |
452 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1); | |
3d7415f4 | 453 | |
b6e676ce LP |
454 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_IMPORT_RAW)) |
455 | cmd[k++] = SYSTEMD_IMPORT_PATH; | |
587fec42 LP |
456 | else if (IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) |
457 | cmd[k++] = SYSTEMD_EXPORT_PATH; | |
b6e676ce LP |
458 | else |
459 | cmd[k++] = SYSTEMD_PULL_PATH; | |
460 | ||
587fec42 | 461 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_EXPORT_TAR, TRANSFER_PULL_TAR)) |
b6e676ce | 462 | cmd[k++] = "tar"; |
587fec42 | 463 | else if (IN_SET(t->type, TRANSFER_IMPORT_RAW, TRANSFER_EXPORT_RAW, TRANSFER_PULL_RAW)) |
b6e676ce LP |
464 | cmd[k++] = "raw"; |
465 | else | |
466 | cmd[k++] = "dkr"; | |
467 | ||
468 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
469 | cmd[k++] = "--verify"; | |
470 | cmd[k++] = import_verify_to_string(t->verify); | |
471 | } | |
472 | ||
3d7415f4 LP |
473 | if (t->force_local) |
474 | cmd[k++] = "--force"; | |
b6e676ce LP |
475 | if (t->read_only) |
476 | cmd[k++] = "--read-only"; | |
3d7415f4 LP |
477 | |
478 | if (t->dkr_index_url) { | |
479 | cmd[k++] = "--dkr-index-url"; | |
480 | cmd[k++] = t->dkr_index_url; | |
481 | } | |
482 | ||
587fec42 LP |
483 | if (t->format) { |
484 | cmd[k++] = "--format"; | |
485 | cmd[k++] = t->format; | |
486 | } | |
487 | ||
488 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
489 | if (t->remote) | |
490 | cmd[k++] = t->remote; | |
491 | else | |
492 | cmd[k++] = "-"; | |
493 | } | |
b6e676ce | 494 | |
3d7415f4 LP |
495 | if (t->local) |
496 | cmd[k++] = t->local; | |
497 | cmd[k] = NULL; | |
498 | ||
b6e676ce LP |
499 | execv(cmd[0], (char * const *) cmd); |
500 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
501 | _exit(EXIT_FAILURE); |
502 | } | |
503 | ||
504 | pipefd[1] = safe_close(pipefd[1]); | |
505 | t->log_fd = pipefd[0]; | |
506 | pipefd[0] = -1; | |
507 | ||
b6e676ce LP |
508 | t->stdin_fd = safe_close(t->stdin_fd); |
509 | ||
3d7415f4 LP |
510 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, t->pid, WEXITED, transfer_on_pid, t); |
511 | if (r < 0) | |
512 | return r; | |
513 | ||
514 | r = sd_event_add_io(t->manager->event, &t->log_event_source, t->log_fd, EPOLLIN, transfer_on_log, t); | |
515 | if (r < 0) | |
516 | return r; | |
517 | ||
518 | /* Make sure always process logging before SIGCHLD */ | |
519 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
520 | if (r < 0) | |
521 | return r; | |
522 | ||
523 | r = sd_bus_emit_signal( | |
524 | t->manager->bus, | |
525 | "/org/freedesktop/import1", | |
526 | "org.freedesktop.import1.Manager", | |
527 | "TransferNew", | |
528 | "uo", | |
529 | t->id, | |
530 | t->object_path); | |
531 | if (r < 0) | |
532 | return r; | |
533 | ||
534 | return 0; | |
535 | } | |
536 | ||
537 | static Manager *manager_unref(Manager *m) { | |
538 | Transfer *t; | |
539 | ||
540 | if (!m) | |
541 | return NULL; | |
542 | ||
7079cfef LP |
543 | sd_event_source_unref(m->notify_event_source); |
544 | safe_close(m->notify_fd); | |
545 | ||
3d7415f4 LP |
546 | while ((t = hashmap_first(m->transfers))) |
547 | transfer_unref(t); | |
548 | ||
549 | hashmap_free(m->transfers); | |
550 | ||
551 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
552 | ||
553 | sd_bus_close(m->bus); | |
554 | sd_bus_unref(m->bus); | |
555 | sd_event_unref(m->event); | |
556 | ||
557 | free(m); | |
558 | return NULL; | |
559 | } | |
560 | ||
561 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
562 | ||
7079cfef LP |
563 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
564 | ||
565 | char buf[NOTIFY_BUFFER_MAX+1]; | |
566 | struct iovec iovec = { | |
567 | .iov_base = buf, | |
568 | .iov_len = sizeof(buf)-1, | |
569 | }; | |
570 | union { | |
571 | struct cmsghdr cmsghdr; | |
572 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
573 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
574 | } control = {}; | |
575 | struct msghdr msghdr = { | |
576 | .msg_iov = &iovec, | |
577 | .msg_iovlen = 1, | |
578 | .msg_control = &control, | |
579 | .msg_controllen = sizeof(control), | |
580 | }; | |
581 | struct ucred *ucred = NULL; | |
582 | Manager *m = userdata; | |
583 | struct cmsghdr *cmsg; | |
584 | unsigned percent; | |
585 | char *p, *e; | |
586 | Transfer *t; | |
587 | Iterator i; | |
588 | ssize_t n; | |
589 | int r; | |
590 | ||
591 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); | |
592 | if (n < 0) { | |
593 | if (errno == EAGAIN || errno == EINTR) | |
594 | return 0; | |
595 | ||
596 | return -errno; | |
597 | } | |
598 | ||
1c8da044 LP |
599 | cmsg_close_all(&msghdr); |
600 | ||
7079cfef | 601 | for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg; cmsg = CMSG_NXTHDR(&msghdr, cmsg)) { |
1c8da044 | 602 | if (cmsg->cmsg_level == SOL_SOCKET && |
7079cfef LP |
603 | cmsg->cmsg_type == SCM_CREDENTIALS && |
604 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) { | |
605 | ||
606 | ucred = (struct ucred*) CMSG_DATA(cmsg); | |
607 | } | |
608 | } | |
609 | ||
610 | if (msghdr.msg_flags & MSG_TRUNC) { | |
611 | log_warning("Got overly long notification datagram, ignoring."); | |
612 | return 0; | |
613 | } | |
614 | ||
615 | if (!ucred || ucred->pid <= 0) { | |
616 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
617 | return 0; | |
618 | } | |
619 | ||
620 | HASHMAP_FOREACH(t, m->transfers, i) | |
621 | if (ucred->pid == t->pid) | |
622 | break; | |
623 | ||
624 | if (!t) { | |
625 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
626 | return 0; | |
627 | } | |
628 | ||
629 | buf[n] = 0; | |
630 | ||
631 | p = startswith(buf, "X_IMPORT_PROGRESS="); | |
632 | if (!p) { | |
633 | p = strstr(buf, "\nX_IMPORT_PROGRESS="); | |
634 | if (!p) | |
635 | return 0; | |
636 | ||
637 | p += 19; | |
638 | } | |
639 | ||
640 | e = strchrnul(p, '\n'); | |
641 | *e = 0; | |
642 | ||
643 | r = safe_atou(p, &percent); | |
644 | if (r < 0 || percent > 100) { | |
645 | log_warning("Got invalid percent value, ignoring."); | |
646 | return 0; | |
647 | } | |
648 | ||
649 | t->progress_percent = percent; | |
650 | ||
651 | log_debug("Got percentage from client: %u%%", percent); | |
652 | return 0; | |
653 | } | |
654 | ||
3d7415f4 LP |
655 | static int manager_new(Manager **ret) { |
656 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
657 | static const union sockaddr_union sa = { |
658 | .un.sun_family = AF_UNIX, | |
659 | .un.sun_path = "/run/systemd/import/notify", | |
660 | }; | |
661 | static const int one = 1; | |
3d7415f4 LP |
662 | int r; |
663 | ||
664 | assert(ret); | |
665 | ||
666 | m = new0(Manager, 1); | |
667 | if (!m) | |
668 | return -ENOMEM; | |
669 | ||
670 | r = sd_event_default(&m->event); | |
671 | if (r < 0) | |
672 | return r; | |
673 | ||
674 | sd_event_set_watchdog(m->event, true); | |
675 | ||
676 | r = sd_bus_default_system(&m->bus); | |
677 | if (r < 0) | |
678 | return r; | |
679 | ||
7079cfef LP |
680 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
681 | if (m->notify_fd < 0) | |
682 | return -errno; | |
683 | ||
684 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
685 | (void) unlink(sa.un.sun_path); | |
686 | ||
687 | if (bind(m->notify_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0) | |
688 | return -errno; | |
689 | ||
690 | if (setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) | |
691 | return -errno; | |
692 | ||
693 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_on_notify, m); | |
694 | if (r < 0) | |
695 | return r; | |
696 | ||
3d7415f4 LP |
697 | *ret = m; |
698 | m = NULL; | |
699 | ||
700 | return 0; | |
701 | } | |
702 | ||
703 | static Transfer *manager_find(Manager *m, TransferType type, const char *dkr_index_url, const char *remote) { | |
704 | Transfer *t; | |
705 | Iterator i; | |
706 | ||
707 | assert(m); | |
708 | assert(type >= 0); | |
709 | assert(type < _TRANSFER_TYPE_MAX); | |
710 | ||
711 | HASHMAP_FOREACH(t, m->transfers, i) { | |
712 | ||
713 | if (t->type == type && | |
714 | streq_ptr(t->remote, remote) && | |
715 | streq_ptr(t->dkr_index_url, dkr_index_url)) | |
716 | return t; | |
717 | } | |
718 | ||
719 | return NULL; | |
720 | } | |
721 | ||
b6e676ce LP |
722 | static int method_import_tar_or_raw(sd_bus *bus, sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
723 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
724 | int fd, force, read_only, r; | |
725 | const char *local, *object; | |
726 | Manager *m = userdata; | |
727 | TransferType type; | |
728 | uint32_t id; | |
729 | ||
730 | r = bus_verify_polkit_async( | |
731 | msg, | |
732 | CAP_SYS_ADMIN, | |
733 | "org.freedesktop.import1.import", | |
734 | false, | |
735 | UID_INVALID, | |
736 | &m->polkit_registry, | |
737 | error); | |
738 | if (r < 0) | |
739 | return r; | |
740 | if (r == 0) | |
741 | return 1; /* Will call us back */ | |
742 | ||
743 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
744 | if (r < 0) | |
745 | return r; | |
746 | ||
747 | if (!machine_name_is_valid(local)) | |
748 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
749 | ||
750 | r = setup_machine_directory((uint64_t) -1, error); | |
751 | if (r < 0) | |
752 | return r; | |
753 | ||
754 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
755 | ||
756 | r = transfer_new(m, &t); | |
757 | if (r < 0) | |
758 | return r; | |
759 | ||
760 | t->type = type; | |
761 | t->force_local = force; | |
762 | t->read_only = read_only; | |
763 | ||
764 | t->local = strdup(local); | |
765 | if (!t->local) | |
766 | return -ENOMEM; | |
767 | ||
768 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
769 | if (t->stdin_fd < 0) | |
770 | return -errno; | |
771 | ||
772 | r = transfer_start(t); | |
773 | if (r < 0) | |
774 | return r; | |
775 | ||
776 | object = t->object_path; | |
777 | id = t->id; | |
778 | t = NULL; | |
779 | ||
780 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
781 | } | |
782 | ||
587fec42 LP |
783 | static int method_export_tar_or_raw(sd_bus *bus, sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
784 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
785 | int fd, r; | |
786 | const char *local, *object, *format; | |
787 | Manager *m = userdata; | |
788 | TransferType type; | |
789 | uint32_t id; | |
790 | ||
791 | r = bus_verify_polkit_async( | |
792 | msg, | |
793 | CAP_SYS_ADMIN, | |
794 | "org.freedesktop.import1.export", | |
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 | ||
3d7415f4 LP |
844 | static int method_pull_tar_or_raw(sd_bus *bus, sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
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 | ||
853 | assert(bus); | |
854 | assert(msg); | |
855 | assert(m); | |
856 | ||
857 | r = bus_verify_polkit_async( | |
858 | msg, | |
859 | CAP_SYS_ADMIN, | |
860 | "org.freedesktop.import1.pull", | |
861 | false, | |
c529695e | 862 | UID_INVALID, |
3d7415f4 LP |
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 | ||
4cee5eed | 889 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
890 | if (r < 0) |
891 | return r; | |
892 | ||
b6e676ce | 893 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; |
3d7415f4 LP |
894 | |
895 | if (manager_find(m, type, NULL, remote)) | |
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 | ||
b6e676ce LP |
910 | if (local) { |
911 | t->local = strdup(local); | |
912 | if (!t->local) | |
913 | return -ENOMEM; | |
914 | } | |
3d7415f4 LP |
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 | ||
927 | static int method_pull_dkr(sd_bus *bus, sd_bus_message *msg, void *userdata, sd_bus_error *error) { | |
928 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
929 | const char *index_url, *remote, *tag, *local, *verify, *object; | |
930 | Manager *m = userdata; | |
931 | ImportVerify v; | |
932 | int force, r; | |
933 | uint32_t id; | |
934 | ||
935 | assert(bus); | |
936 | assert(msg); | |
937 | assert(m); | |
938 | ||
939 | r = bus_verify_polkit_async( | |
940 | msg, | |
941 | CAP_SYS_ADMIN, | |
942 | "org.freedesktop.import1.pull", | |
943 | false, | |
c529695e | 944 | UID_INVALID, |
3d7415f4 LP |
945 | &m->polkit_registry, |
946 | error); | |
947 | if (r < 0) | |
948 | return r; | |
949 | if (r == 0) | |
950 | return 1; /* Will call us back */ | |
951 | ||
952 | r = sd_bus_message_read(msg, "sssssb", &index_url, &remote, &tag, &local, &verify, &force); | |
953 | if (r < 0) | |
954 | return r; | |
955 | ||
956 | if (isempty(index_url)) | |
957 | index_url = DEFAULT_DKR_INDEX_URL; | |
958 | if (!index_url) | |
959 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL must be specified."); | |
960 | if (!http_url_is_valid(index_url)) | |
961 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL %s is invalid", index_url); | |
962 | ||
963 | if (!dkr_name_is_valid(remote)) | |
964 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Remote name %s is not valid", remote); | |
965 | ||
966 | if (isempty(tag)) | |
967 | tag = "latest"; | |
968 | else if (!dkr_tag_is_valid(tag)) | |
969 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Tag %s is not valid", tag); | |
970 | ||
971 | if (isempty(local)) | |
972 | local = NULL; | |
973 | else if (!machine_name_is_valid(local)) | |
974 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
975 | ||
976 | if (isempty(verify)) | |
977 | v = IMPORT_VERIFY_SIGNATURE; | |
978 | else | |
979 | v = import_verify_from_string(verify); | |
980 | if (v < 0) | |
981 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
982 | ||
983 | if (v != IMPORT_VERIFY_NO) | |
984 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "DKR does not support verification."); | |
985 | ||
4cee5eed | 986 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
987 | if (r < 0) |
988 | return r; | |
989 | ||
b6e676ce | 990 | if (manager_find(m, TRANSFER_PULL_DKR, index_url, remote)) |
3d7415f4 LP |
991 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); |
992 | ||
993 | r = transfer_new(m, &t); | |
994 | if (r < 0) | |
995 | return r; | |
996 | ||
b6e676ce | 997 | t->type = TRANSFER_PULL_DKR; |
3d7415f4 LP |
998 | t->verify = v; |
999 | t->force_local = force; | |
1000 | ||
1001 | t->dkr_index_url = strdup(index_url); | |
1002 | if (!t->dkr_index_url) | |
1003 | return -ENOMEM; | |
1004 | ||
1005 | t->remote = strjoin(remote, ":", tag, NULL); | |
1006 | if (!t->remote) | |
1007 | return -ENOMEM; | |
1008 | ||
b6e676ce LP |
1009 | if (local) { |
1010 | t->local = strdup(local); | |
1011 | if (!t->local) | |
1012 | return -ENOMEM; | |
1013 | } | |
3d7415f4 LP |
1014 | |
1015 | r = transfer_start(t); | |
1016 | if (r < 0) | |
1017 | return r; | |
1018 | ||
1019 | object = t->object_path; | |
1020 | id = t->id; | |
1021 | t = NULL; | |
1022 | ||
1023 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
1024 | } | |
1025 | ||
1026 | static int method_list_transfers(sd_bus *bus, sd_bus_message *msg, void *userdata, sd_bus_error *error) { | |
1027 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; | |
1028 | Manager *m = userdata; | |
1029 | Transfer *t; | |
1030 | Iterator i; | |
1031 | int r; | |
1032 | ||
1033 | assert(bus); | |
1034 | assert(msg); | |
1035 | assert(m); | |
1036 | ||
1037 | r = sd_bus_message_new_method_return(msg, &reply); | |
1038 | if (r < 0) | |
1039 | return r; | |
1040 | ||
7079cfef | 1041 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
1042 | if (r < 0) |
1043 | return r; | |
1044 | ||
1045 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1046 | ||
1047 | r = sd_bus_message_append( | |
1048 | reply, | |
7079cfef | 1049 | "(usssdo)", |
3d7415f4 LP |
1050 | t->id, |
1051 | transfer_type_to_string(t->type), | |
1052 | t->remote, | |
1053 | t->local, | |
7079cfef | 1054 | (double) t->progress_percent / 100.0, |
3d7415f4 LP |
1055 | t->object_path); |
1056 | if (r < 0) | |
1057 | return r; | |
1058 | } | |
1059 | ||
1060 | r = sd_bus_message_close_container(reply); | |
1061 | if (r < 0) | |
1062 | return r; | |
1063 | ||
1064 | return sd_bus_send(bus, reply, NULL); | |
1065 | } | |
1066 | ||
1067 | static int method_cancel(sd_bus *bus, sd_bus_message *msg, void *userdata, sd_bus_error *error) { | |
1068 | Transfer *t = userdata; | |
1069 | int r; | |
1070 | ||
1071 | assert(bus); | |
1072 | assert(msg); | |
1073 | assert(t); | |
1074 | ||
1075 | r = bus_verify_polkit_async( | |
1076 | msg, | |
1077 | CAP_SYS_ADMIN, | |
1078 | "org.freedesktop.import1.pull", | |
1079 | false, | |
c529695e | 1080 | UID_INVALID, |
3d7415f4 LP |
1081 | &t->manager->polkit_registry, |
1082 | error); | |
1083 | if (r < 0) | |
1084 | return r; | |
1085 | if (r == 0) | |
1086 | return 1; /* Will call us back */ | |
1087 | ||
1088 | r = transfer_cancel(t); | |
1089 | if (r < 0) | |
1090 | return r; | |
1091 | ||
1092 | return sd_bus_reply_method_return(msg, NULL); | |
1093 | } | |
1094 | ||
1095 | static int method_cancel_transfer(sd_bus *bus, sd_bus_message *msg, void *userdata, sd_bus_error *error) { | |
1096 | Manager *m = userdata; | |
1097 | Transfer *t; | |
1098 | uint32_t id; | |
1099 | int r; | |
1100 | ||
1101 | assert(bus); | |
1102 | assert(msg); | |
1103 | assert(m); | |
1104 | ||
1105 | r = bus_verify_polkit_async( | |
1106 | msg, | |
1107 | CAP_SYS_ADMIN, | |
1108 | "org.freedesktop.import1.pull", | |
1109 | false, | |
c529695e | 1110 | UID_INVALID, |
3d7415f4 LP |
1111 | &m->polkit_registry, |
1112 | error); | |
1113 | if (r < 0) | |
1114 | return r; | |
1115 | if (r == 0) | |
1116 | return 1; /* Will call us back */ | |
1117 | ||
1118 | r = sd_bus_message_read(msg, "u", &id); | |
1119 | if (r < 0) | |
1120 | return r; | |
1121 | if (id <= 0) | |
1122 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); | |
1123 | ||
1124 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1125 | if (!t) | |
09d46cfd | 1126 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1127 | |
1128 | r = transfer_cancel(t); | |
1129 | if (r < 0) | |
1130 | return r; | |
1131 | ||
1132 | return sd_bus_reply_method_return(msg, NULL); | |
1133 | } | |
1134 | ||
7079cfef LP |
1135 | static int property_get_progress( |
1136 | sd_bus *bus, | |
1137 | const char *path, | |
1138 | const char *interface, | |
1139 | const char *property, | |
1140 | sd_bus_message *reply, | |
1141 | void *userdata, | |
1142 | sd_bus_error *error) { | |
1143 | ||
1144 | Transfer *t = userdata; | |
1145 | ||
1146 | assert(bus); | |
1147 | assert(reply); | |
1148 | assert(t); | |
1149 | ||
1150 | return sd_bus_message_append(reply, "d", (double) t->progress_percent / 100.0); | |
1151 | } | |
1152 | ||
3d7415f4 LP |
1153 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1154 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1155 | ||
1156 | static const sd_bus_vtable transfer_vtable[] = { | |
1157 | SD_BUS_VTABLE_START(0), | |
1158 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
1159 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1160 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1161 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1162 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1163 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
3d7415f4 LP |
1164 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
1165 | SD_BUS_SIGNAL("LogMessage", "us", 0), | |
1166 | SD_BUS_VTABLE_END, | |
1167 | }; | |
1168 | ||
1169 | static const sd_bus_vtable manager_vtable[] = { | |
1170 | SD_BUS_VTABLE_START(0), | |
b6e676ce LP |
1171 | SD_BUS_METHOD("ImportTar", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1172 | SD_BUS_METHOD("ImportRaw", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
587fec42 LP |
1173 | SD_BUS_METHOD("ExportTar", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1174 | SD_BUS_METHOD("ExportRaw", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
3d7415f4 LP |
1175 | SD_BUS_METHOD("PullTar", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1176 | SD_BUS_METHOD("PullRaw", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1177 | SD_BUS_METHOD("PullDkr", "sssssb", "uo", method_pull_dkr, SD_BUS_VTABLE_UNPRIVILEGED), | |
7079cfef | 1178 | SD_BUS_METHOD("ListTransfers", NULL, "a(usssdo)", method_list_transfers, SD_BUS_VTABLE_UNPRIVILEGED), |
3d7415f4 LP |
1179 | SD_BUS_METHOD("CancelTransfer", "u", NULL, method_cancel_transfer, SD_BUS_VTABLE_UNPRIVILEGED), |
1180 | SD_BUS_SIGNAL("TransferNew", "uo", 0), | |
1181 | SD_BUS_SIGNAL("TransferRemoved", "uos", 0), | |
1182 | SD_BUS_VTABLE_END, | |
1183 | }; | |
1184 | ||
1185 | static int transfer_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
1186 | Manager *m = userdata; | |
1187 | Transfer *t; | |
1188 | const char *p; | |
1189 | uint32_t id; | |
1190 | int r; | |
1191 | ||
1192 | assert(bus); | |
1193 | assert(path); | |
1194 | assert(interface); | |
1195 | assert(found); | |
1196 | assert(m); | |
1197 | ||
1198 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1199 | if (!p) | |
1200 | return 0; | |
1201 | ||
1202 | r = safe_atou32(p, &id); | |
1203 | if (r < 0 || id == 0) | |
1204 | return 0; | |
1205 | ||
1206 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1207 | if (!t) | |
1208 | return 0; | |
1209 | ||
1210 | *found = t; | |
1211 | return 1; | |
1212 | } | |
1213 | ||
1214 | static int transfer_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
1215 | _cleanup_strv_free_ char **l = NULL; | |
1216 | Manager *m = userdata; | |
1217 | Transfer *t; | |
1218 | unsigned k = 0; | |
1219 | Iterator i; | |
1220 | ||
1221 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1222 | if (!l) | |
1223 | return -ENOMEM; | |
1224 | ||
1225 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1226 | ||
1227 | l[k] = strdup(t->object_path); | |
1228 | if (!l[k]) | |
1229 | return -ENOMEM; | |
1230 | ||
1231 | k++; | |
1232 | } | |
1233 | ||
1234 | *nodes = l; | |
1235 | l = NULL; | |
1236 | ||
1237 | return 1; | |
1238 | } | |
1239 | ||
1240 | static int manager_add_bus_objects(Manager *m) { | |
1241 | int r; | |
1242 | ||
1243 | assert(m); | |
1244 | ||
1245 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/import1", "org.freedesktop.import1.Manager", manager_vtable, m); | |
1246 | if (r < 0) | |
1247 | return log_error_errno(r, "Failed to register object: %m"); | |
1248 | ||
1249 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/import1/transfer", "org.freedesktop.import1.Transfer", transfer_vtable, transfer_object_find, m); | |
1250 | if (r < 0) | |
1251 | return log_error_errno(r, "Failed to register object: %m"); | |
1252 | ||
1253 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/import1/transfer", transfer_node_enumerator, m); | |
1254 | if (r < 0) | |
1255 | return log_error_errno(r, "Failed to add transfer enumerator: %m"); | |
1256 | ||
1257 | r = sd_bus_request_name(m->bus, "org.freedesktop.import1", 0); | |
1258 | if (r < 0) | |
1259 | return log_error_errno(r, "Failed to register name: %m"); | |
1260 | ||
1261 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1262 | if (r < 0) | |
1263 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1264 | ||
1265 | return 0; | |
1266 | } | |
1267 | ||
1268 | static bool manager_check_idle(void *userdata) { | |
1269 | Manager *m = userdata; | |
1270 | ||
1271 | return hashmap_isempty(m->transfers); | |
1272 | } | |
1273 | ||
1274 | static int manager_run(Manager *m) { | |
1275 | assert(m); | |
1276 | ||
1277 | return bus_event_loop_with_idle( | |
1278 | m->event, | |
1279 | m->bus, | |
1280 | "org.freedesktop.import1", | |
1281 | DEFAULT_EXIT_USEC, | |
1282 | manager_check_idle, | |
1283 | m); | |
1284 | } | |
1285 | ||
1286 | int main(int argc, char *argv[]) { | |
1287 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
1288 | int r; | |
1289 | ||
1290 | log_set_target(LOG_TARGET_AUTO); | |
1291 | log_parse_environment(); | |
1292 | log_open(); | |
1293 | ||
1294 | umask(0022); | |
1295 | ||
1296 | if (argc != 1) { | |
1297 | log_error("This program takes no arguments."); | |
1298 | r = -EINVAL; | |
1299 | goto finish; | |
1300 | } | |
1301 | ||
1302 | assert_se(sigprocmask_many(SIG_BLOCK, SIGCHLD, -1) >= 0); | |
1303 | ||
1304 | r = manager_new(&m); | |
1305 | if (r < 0) { | |
1306 | log_error_errno(r, "Failed to allocate manager object: %m"); | |
1307 | goto finish; | |
1308 | } | |
1309 | ||
1310 | r = manager_add_bus_objects(m); | |
1311 | if (r < 0) | |
1312 | goto finish; | |
1313 | ||
1314 | r = manager_run(m); | |
1315 | if (r < 0) { | |
1316 | log_error_errno(r, "Failed to run event loop: %m"); | |
1317 | goto finish; | |
1318 | } | |
1319 | ||
1320 | finish: | |
1321 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1322 | } |