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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 | |
3d7415f4 | 26 | #include "bus-common-errors.h" |
3ffd4af2 | 27 | #include "bus-util.h" |
a97dcc12 | 28 | #include "def.h" |
3ffd4af2 LP |
29 | #include "fd-util.h" |
30 | #include "hostname-util.h" | |
31 | #include "import-util.h" | |
432cea00 | 32 | #include "machine-pool.h" |
3ffd4af2 LP |
33 | #include "missing.h" |
34 | #include "mkdir.h" | |
113b3fc1 | 35 | #include "path-util.h" |
0b452006 | 36 | #include "process-util.h" |
24882e06 | 37 | #include "signal-util.h" |
3ffd4af2 LP |
38 | #include "socket-util.h" |
39 | #include "strv.h" | |
40 | #include "util.h" | |
3d7415f4 LP |
41 | |
42 | typedef struct Transfer Transfer; | |
43 | typedef struct Manager Manager; | |
44 | ||
45 | typedef enum TransferType { | |
b6e676ce LP |
46 | TRANSFER_IMPORT_TAR, |
47 | TRANSFER_IMPORT_RAW, | |
587fec42 LP |
48 | TRANSFER_EXPORT_TAR, |
49 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
50 | TRANSFER_PULL_TAR, |
51 | TRANSFER_PULL_RAW, | |
52 | TRANSFER_PULL_DKR, | |
3d7415f4 LP |
53 | _TRANSFER_TYPE_MAX, |
54 | _TRANSFER_TYPE_INVALID = -1, | |
55 | } TransferType; | |
56 | ||
57 | struct Transfer { | |
58 | Manager *manager; | |
59 | ||
60 | uint32_t id; | |
61 | char *object_path; | |
62 | ||
63 | TransferType type; | |
64 | ImportVerify verify; | |
65 | ||
66 | char *remote; | |
67 | char *local; | |
68 | bool force_local; | |
b6e676ce | 69 | bool read_only; |
3d7415f4 LP |
70 | |
71 | char *dkr_index_url; | |
587fec42 | 72 | char *format; |
3d7415f4 LP |
73 | |
74 | pid_t pid; | |
75 | ||
76 | int log_fd; | |
77 | ||
78 | char log_message[LINE_MAX]; | |
79 | size_t log_message_size; | |
80 | ||
81 | sd_event_source *pid_event_source; | |
82 | sd_event_source *log_event_source; | |
83 | ||
84 | unsigned n_canceled; | |
7079cfef | 85 | unsigned progress_percent; |
b6e676ce LP |
86 | |
87 | int stdin_fd; | |
587fec42 | 88 | int stdout_fd; |
3d7415f4 LP |
89 | }; |
90 | ||
91 | struct Manager { | |
92 | sd_event *event; | |
93 | sd_bus *bus; | |
94 | ||
95 | uint32_t current_transfer_id; | |
96 | Hashmap *transfers; | |
97 | ||
98 | Hashmap *polkit_registry; | |
7079cfef LP |
99 | |
100 | int notify_fd; | |
101 | ||
102 | sd_event_source *notify_event_source; | |
3d7415f4 LP |
103 | }; |
104 | ||
105 | #define TRANSFERS_MAX 64 | |
106 | ||
107 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
108 | [TRANSFER_IMPORT_TAR] = "import-tar", |
109 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
587fec42 LP |
110 | [TRANSFER_EXPORT_TAR] = "export-tar", |
111 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b6e676ce LP |
112 | [TRANSFER_PULL_TAR] = "pull-tar", |
113 | [TRANSFER_PULL_RAW] = "pull-raw", | |
114 | [TRANSFER_PULL_DKR] = "pull-dkr", | |
3d7415f4 LP |
115 | }; |
116 | ||
b9a5f858 | 117 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
118 | |
119 | static Transfer *transfer_unref(Transfer *t) { | |
120 | if (!t) | |
121 | return NULL; | |
122 | ||
123 | if (t->manager) | |
124 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
125 | ||
126 | sd_event_source_unref(t->pid_event_source); | |
127 | sd_event_source_unref(t->log_event_source); | |
128 | ||
129 | free(t->remote); | |
130 | free(t->local); | |
131 | free(t->dkr_index_url); | |
587fec42 | 132 | free(t->format); |
3d7415f4 LP |
133 | free(t->object_path); |
134 | ||
135 | if (t->pid > 0) { | |
136 | (void) kill_and_sigcont(t->pid, SIGKILL); | |
137 | (void) wait_for_terminate(t->pid, NULL); | |
138 | } | |
139 | ||
140 | safe_close(t->log_fd); | |
b6e676ce | 141 | safe_close(t->stdin_fd); |
587fec42 | 142 | safe_close(t->stdout_fd); |
3d7415f4 LP |
143 | |
144 | free(t); | |
145 | return NULL; | |
146 | } | |
147 | ||
148 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
149 | ||
150 | static int transfer_new(Manager *m, Transfer **ret) { | |
151 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
152 | uint32_t id; | |
153 | int r; | |
154 | ||
155 | assert(m); | |
156 | assert(ret); | |
157 | ||
158 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
159 | return -E2BIG; | |
160 | ||
161 | r = hashmap_ensure_allocated(&m->transfers, &trivial_hash_ops); | |
162 | if (r < 0) | |
163 | return r; | |
164 | ||
165 | t = new0(Transfer, 1); | |
166 | if (!t) | |
167 | return -ENOMEM; | |
168 | ||
169 | t->type = _TRANSFER_TYPE_INVALID; | |
170 | t->log_fd = -1; | |
b6e676ce | 171 | t->stdin_fd = -1; |
3be78ab2 | 172 | t->stdout_fd = -1; |
b6e676ce | 173 | t->verify = _IMPORT_VERIFY_INVALID; |
3d7415f4 LP |
174 | |
175 | id = m->current_transfer_id + 1; | |
176 | ||
177 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
178 | return -ENOMEM; | |
179 | ||
180 | r = hashmap_put(m->transfers, UINT32_TO_PTR(id), t); | |
181 | if (r < 0) | |
182 | return r; | |
183 | ||
184 | m->current_transfer_id = id; | |
185 | ||
186 | t->manager = m; | |
187 | t->id = id; | |
188 | ||
189 | *ret = t; | |
190 | t = NULL; | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
195 | static void transfer_send_log_line(Transfer *t, const char *line) { | |
196 | int r, priority = LOG_INFO; | |
197 | ||
198 | assert(t); | |
199 | assert(line); | |
200 | ||
201 | syslog_parse_priority(&line, &priority, true); | |
202 | ||
09d46cfd | 203 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
204 | |
205 | r = sd_bus_emit_signal( | |
206 | t->manager->bus, | |
207 | t->object_path, | |
208 | "org.freedesktop.import1.Transfer", | |
209 | "LogMessage", | |
210 | "us", | |
211 | priority, | |
212 | line); | |
213 | if (r < 0) | |
214 | log_error_errno(r, "Cannot emit message: %m"); | |
215 | } | |
216 | ||
217 | static void transfer_send_logs(Transfer *t, bool flush) { | |
218 | assert(t); | |
219 | ||
220 | /* Try to send out all log messages, if we can. But if we | |
221 | * can't we remove the messages from the buffer, but don't | |
222 | * fail */ | |
223 | ||
224 | while (t->log_message_size > 0) { | |
225 | _cleanup_free_ char *n = NULL; | |
226 | char *e; | |
227 | ||
228 | if (t->log_message_size >= sizeof(t->log_message)) | |
229 | e = t->log_message + sizeof(t->log_message); | |
230 | else { | |
231 | char *a, *b; | |
232 | ||
233 | a = memchr(t->log_message, 0, t->log_message_size); | |
234 | b = memchr(t->log_message, '\n', t->log_message_size); | |
235 | ||
236 | if (a && b) | |
237 | e = a < b ? a : b; | |
238 | else if (a) | |
239 | e = a; | |
240 | else | |
241 | e = b; | |
242 | } | |
243 | ||
244 | if (!e) { | |
245 | if (!flush) | |
246 | return; | |
247 | ||
248 | e = t->log_message + t->log_message_size; | |
249 | } | |
250 | ||
251 | n = strndup(t->log_message, e - t->log_message); | |
252 | ||
253 | /* Skip over NUL and newlines */ | |
be3ce301 | 254 | while ((e < t->log_message + t->log_message_size) && (*e == 0 || *e == '\n')) |
3d7415f4 LP |
255 | e++; |
256 | ||
257 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
258 | t->log_message_size -= e - t->log_message; | |
259 | ||
260 | if (!n) { | |
261 | log_oom(); | |
262 | continue; | |
263 | } | |
264 | ||
265 | if (isempty(n)) | |
266 | continue; | |
267 | ||
268 | transfer_send_log_line(t, n); | |
269 | } | |
270 | } | |
271 | ||
272 | static int transfer_finalize(Transfer *t, bool success) { | |
273 | int r; | |
274 | ||
275 | assert(t); | |
276 | ||
277 | transfer_send_logs(t, true); | |
278 | ||
279 | r = sd_bus_emit_signal( | |
280 | t->manager->bus, | |
281 | "/org/freedesktop/import1", | |
282 | "org.freedesktop.import1.Manager", | |
283 | "TransferRemoved", | |
284 | "uos", | |
285 | t->id, | |
286 | t->object_path, | |
287 | success ? "done" : | |
288 | t->n_canceled > 0 ? "canceled" : "failed"); | |
289 | ||
290 | if (r < 0) | |
291 | log_error_errno(r, "Cannot emit message: %m"); | |
292 | ||
293 | transfer_unref(t); | |
294 | return 0; | |
295 | } | |
296 | ||
297 | static int transfer_cancel(Transfer *t) { | |
298 | int r; | |
299 | ||
300 | assert(t); | |
301 | ||
302 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
303 | if (r < 0) | |
304 | return r; | |
305 | ||
306 | t->n_canceled++; | |
307 | return 0; | |
308 | } | |
309 | ||
310 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
311 | Transfer *t = userdata; | |
312 | bool success = false; | |
313 | ||
314 | assert(s); | |
315 | assert(t); | |
316 | ||
317 | if (si->si_code == CLD_EXITED) { | |
318 | if (si->si_status != 0) | |
319 | log_error("Import process failed with exit code %i.", si->si_status); | |
320 | else { | |
321 | log_debug("Import process succeeded."); | |
322 | success = true; | |
323 | } | |
324 | ||
325 | } else if (si->si_code == CLD_KILLED || | |
326 | si->si_code == CLD_DUMPED) | |
327 | ||
328 | log_error("Import process terminated by signal %s.", signal_to_string(si->si_status)); | |
329 | else | |
330 | log_error("Import process failed due to unknown reason."); | |
331 | ||
332 | t->pid = 0; | |
333 | ||
334 | return transfer_finalize(t, success); | |
335 | } | |
336 | ||
337 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
338 | Transfer *t = userdata; | |
339 | ssize_t l; | |
340 | ||
341 | assert(s); | |
342 | assert(t); | |
343 | ||
344 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
345 | if (l <= 0) { | |
346 | /* EOF/read error. We just close the pipe here, and | |
347 | * close the watch, waiting for the SIGCHLD to arrive, | |
348 | * before we do anything else. */ | |
349 | ||
350 | if (l < 0) | |
351 | log_error_errno(errno, "Failed to read log message: %m"); | |
352 | ||
353 | t->log_event_source = sd_event_source_unref(t->log_event_source); | |
354 | return 0; | |
355 | } | |
356 | ||
357 | t->log_message_size += l; | |
358 | ||
359 | transfer_send_logs(t, false); | |
360 | ||
361 | return 0; | |
362 | } | |
363 | ||
364 | static int transfer_start(Transfer *t) { | |
365 | _cleanup_close_pair_ int pipefd[2] = { -1, -1 }; | |
366 | int r; | |
367 | ||
368 | assert(t); | |
369 | assert(t->pid <= 0); | |
370 | ||
371 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
372 | return -errno; | |
373 | ||
374 | t->pid = fork(); | |
375 | if (t->pid < 0) | |
376 | return -errno; | |
377 | if (t->pid == 0) { | |
378 | const char *cmd[] = { | |
587fec42 | 379 | NULL, /* systemd-import, systemd-export or systemd-pull */ |
b6e676ce LP |
380 | NULL, /* tar, raw, dkr */ |
381 | NULL, /* --verify= */ | |
3d7415f4 LP |
382 | NULL, /* verify argument */ |
383 | NULL, /* maybe --force */ | |
b6e676ce | 384 | NULL, /* maybe --read-only */ |
3d7415f4 | 385 | NULL, /* maybe --dkr-index-url */ |
587fec42 LP |
386 | NULL, /* if so: the actual URL */ |
387 | NULL, /* maybe --format= */ | |
388 | NULL, /* if so: the actual format */ | |
3d7415f4 LP |
389 | NULL, /* remote */ |
390 | NULL, /* local */ | |
391 | NULL | |
392 | }; | |
b6e676ce | 393 | unsigned k = 0; |
3d7415f4 LP |
394 | |
395 | /* Child */ | |
396 | ||
ce30c8dc LP |
397 | (void) reset_all_signal_handlers(); |
398 | (void) reset_signal_mask(); | |
3d7415f4 LP |
399 | assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); |
400 | ||
401 | pipefd[0] = safe_close(pipefd[0]); | |
402 | ||
587fec42 | 403 | if (dup2(pipefd[1], STDERR_FILENO) != STDERR_FILENO) { |
3d7415f4 LP |
404 | log_error_errno(errno, "Failed to dup2() fd: %m"); |
405 | _exit(EXIT_FAILURE); | |
406 | } | |
407 | ||
587fec42 LP |
408 | if (t->stdout_fd >= 0) { |
409 | if (dup2(t->stdout_fd, STDOUT_FILENO) != STDOUT_FILENO) { | |
410 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
411 | _exit(EXIT_FAILURE); | |
412 | } | |
413 | ||
414 | if (t->stdout_fd != STDOUT_FILENO) | |
415 | safe_close(t->stdout_fd); | |
416 | } else { | |
417 | if (dup2(pipefd[1], STDOUT_FILENO) != STDOUT_FILENO) { | |
418 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
419 | _exit(EXIT_FAILURE); | |
420 | } | |
3d7415f4 LP |
421 | } |
422 | ||
423 | if (pipefd[1] != STDOUT_FILENO && pipefd[1] != STDERR_FILENO) | |
424 | pipefd[1] = safe_close(pipefd[1]); | |
425 | ||
b6e676ce LP |
426 | if (t->stdin_fd >= 0) { |
427 | if (dup2(t->stdin_fd, STDIN_FILENO) != STDIN_FILENO) { | |
428 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
429 | _exit(EXIT_FAILURE); | |
430 | } | |
431 | ||
432 | if (t->stdin_fd != STDIN_FILENO) | |
433 | safe_close(t->stdin_fd); | |
434 | } else { | |
435 | int null_fd; | |
436 | ||
437 | null_fd = open("/dev/null", O_RDONLY|O_NOCTTY); | |
438 | if (null_fd < 0) { | |
439 | log_error_errno(errno, "Failed to open /dev/null: %m"); | |
440 | _exit(EXIT_FAILURE); | |
441 | } | |
442 | ||
443 | if (dup2(null_fd, STDIN_FILENO) != STDIN_FILENO) { | |
444 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
445 | _exit(EXIT_FAILURE); | |
446 | } | |
447 | ||
448 | if (null_fd != STDIN_FILENO) | |
449 | safe_close(null_fd); | |
3d7415f4 LP |
450 | } |
451 | ||
3d7415f4 LP |
452 | fd_cloexec(STDIN_FILENO, false); |
453 | fd_cloexec(STDOUT_FILENO, false); | |
454 | fd_cloexec(STDERR_FILENO, false); | |
455 | ||
7079cfef LP |
456 | setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1); |
457 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1); | |
3d7415f4 | 458 | |
b6e676ce LP |
459 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_IMPORT_RAW)) |
460 | cmd[k++] = SYSTEMD_IMPORT_PATH; | |
587fec42 LP |
461 | else if (IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) |
462 | cmd[k++] = SYSTEMD_EXPORT_PATH; | |
b6e676ce LP |
463 | else |
464 | cmd[k++] = SYSTEMD_PULL_PATH; | |
465 | ||
587fec42 | 466 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_EXPORT_TAR, TRANSFER_PULL_TAR)) |
b6e676ce | 467 | cmd[k++] = "tar"; |
587fec42 | 468 | else if (IN_SET(t->type, TRANSFER_IMPORT_RAW, TRANSFER_EXPORT_RAW, TRANSFER_PULL_RAW)) |
b6e676ce LP |
469 | cmd[k++] = "raw"; |
470 | else | |
471 | cmd[k++] = "dkr"; | |
472 | ||
473 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
474 | cmd[k++] = "--verify"; | |
475 | cmd[k++] = import_verify_to_string(t->verify); | |
476 | } | |
477 | ||
3d7415f4 LP |
478 | if (t->force_local) |
479 | cmd[k++] = "--force"; | |
b6e676ce LP |
480 | if (t->read_only) |
481 | cmd[k++] = "--read-only"; | |
3d7415f4 LP |
482 | |
483 | if (t->dkr_index_url) { | |
484 | cmd[k++] = "--dkr-index-url"; | |
485 | cmd[k++] = t->dkr_index_url; | |
486 | } | |
487 | ||
587fec42 LP |
488 | if (t->format) { |
489 | cmd[k++] = "--format"; | |
490 | cmd[k++] = t->format; | |
491 | } | |
492 | ||
493 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
494 | if (t->remote) | |
495 | cmd[k++] = t->remote; | |
496 | else | |
497 | cmd[k++] = "-"; | |
498 | } | |
b6e676ce | 499 | |
3d7415f4 LP |
500 | if (t->local) |
501 | cmd[k++] = t->local; | |
502 | cmd[k] = NULL; | |
503 | ||
b6e676ce LP |
504 | execv(cmd[0], (char * const *) cmd); |
505 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
506 | _exit(EXIT_FAILURE); |
507 | } | |
508 | ||
509 | pipefd[1] = safe_close(pipefd[1]); | |
510 | t->log_fd = pipefd[0]; | |
511 | pipefd[0] = -1; | |
512 | ||
b6e676ce LP |
513 | t->stdin_fd = safe_close(t->stdin_fd); |
514 | ||
3d7415f4 LP |
515 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, t->pid, WEXITED, transfer_on_pid, t); |
516 | if (r < 0) | |
517 | return r; | |
518 | ||
519 | r = sd_event_add_io(t->manager->event, &t->log_event_source, t->log_fd, EPOLLIN, transfer_on_log, t); | |
520 | if (r < 0) | |
521 | return r; | |
522 | ||
523 | /* Make sure always process logging before SIGCHLD */ | |
524 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
525 | if (r < 0) | |
526 | return r; | |
527 | ||
528 | r = sd_bus_emit_signal( | |
529 | t->manager->bus, | |
530 | "/org/freedesktop/import1", | |
531 | "org.freedesktop.import1.Manager", | |
532 | "TransferNew", | |
533 | "uo", | |
534 | t->id, | |
535 | t->object_path); | |
536 | if (r < 0) | |
537 | return r; | |
538 | ||
539 | return 0; | |
540 | } | |
541 | ||
542 | static Manager *manager_unref(Manager *m) { | |
543 | Transfer *t; | |
544 | ||
545 | if (!m) | |
546 | return NULL; | |
547 | ||
7079cfef LP |
548 | sd_event_source_unref(m->notify_event_source); |
549 | safe_close(m->notify_fd); | |
550 | ||
3d7415f4 LP |
551 | while ((t = hashmap_first(m->transfers))) |
552 | transfer_unref(t); | |
553 | ||
554 | hashmap_free(m->transfers); | |
555 | ||
556 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
557 | ||
03976f7b | 558 | m->bus = sd_bus_flush_close_unref(m->bus); |
3d7415f4 LP |
559 | sd_event_unref(m->event); |
560 | ||
561 | free(m); | |
562 | return NULL; | |
563 | } | |
564 | ||
565 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
566 | ||
7079cfef LP |
567 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
568 | ||
569 | char buf[NOTIFY_BUFFER_MAX+1]; | |
570 | struct iovec iovec = { | |
571 | .iov_base = buf, | |
572 | .iov_len = sizeof(buf)-1, | |
573 | }; | |
574 | union { | |
575 | struct cmsghdr cmsghdr; | |
576 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
577 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
578 | } control = {}; | |
579 | struct msghdr msghdr = { | |
580 | .msg_iov = &iovec, | |
581 | .msg_iovlen = 1, | |
582 | .msg_control = &control, | |
583 | .msg_controllen = sizeof(control), | |
584 | }; | |
585 | struct ucred *ucred = NULL; | |
586 | Manager *m = userdata; | |
587 | struct cmsghdr *cmsg; | |
588 | unsigned percent; | |
589 | char *p, *e; | |
590 | Transfer *t; | |
591 | Iterator i; | |
592 | ssize_t n; | |
593 | int r; | |
594 | ||
595 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); | |
596 | if (n < 0) { | |
597 | if (errno == EAGAIN || errno == EINTR) | |
598 | return 0; | |
599 | ||
600 | return -errno; | |
601 | } | |
602 | ||
1c8da044 LP |
603 | cmsg_close_all(&msghdr); |
604 | ||
3ee897d6 LP |
605 | CMSG_FOREACH(cmsg, &msghdr) |
606 | if (cmsg->cmsg_level == SOL_SOCKET && | |
607 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
608 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) | |
7079cfef | 609 | ucred = (struct ucred*) CMSG_DATA(cmsg); |
7079cfef LP |
610 | |
611 | if (msghdr.msg_flags & MSG_TRUNC) { | |
612 | log_warning("Got overly long notification datagram, ignoring."); | |
613 | return 0; | |
614 | } | |
615 | ||
616 | if (!ucred || ucred->pid <= 0) { | |
617 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
618 | return 0; | |
619 | } | |
620 | ||
621 | HASHMAP_FOREACH(t, m->transfers, i) | |
622 | if (ucred->pid == t->pid) | |
623 | break; | |
624 | ||
625 | if (!t) { | |
626 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
627 | return 0; | |
628 | } | |
629 | ||
630 | buf[n] = 0; | |
631 | ||
632 | p = startswith(buf, "X_IMPORT_PROGRESS="); | |
633 | if (!p) { | |
634 | p = strstr(buf, "\nX_IMPORT_PROGRESS="); | |
635 | if (!p) | |
636 | return 0; | |
637 | ||
638 | p += 19; | |
639 | } | |
640 | ||
641 | e = strchrnul(p, '\n'); | |
642 | *e = 0; | |
643 | ||
644 | r = safe_atou(p, &percent); | |
645 | if (r < 0 || percent > 100) { | |
646 | log_warning("Got invalid percent value, ignoring."); | |
647 | return 0; | |
648 | } | |
649 | ||
650 | t->progress_percent = percent; | |
651 | ||
652 | log_debug("Got percentage from client: %u%%", percent); | |
653 | return 0; | |
654 | } | |
655 | ||
3d7415f4 LP |
656 | static int manager_new(Manager **ret) { |
657 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
658 | static const union sockaddr_union sa = { |
659 | .un.sun_family = AF_UNIX, | |
660 | .un.sun_path = "/run/systemd/import/notify", | |
661 | }; | |
662 | static const int one = 1; | |
3d7415f4 LP |
663 | int r; |
664 | ||
665 | assert(ret); | |
666 | ||
667 | m = new0(Manager, 1); | |
668 | if (!m) | |
669 | return -ENOMEM; | |
670 | ||
671 | r = sd_event_default(&m->event); | |
672 | if (r < 0) | |
673 | return r; | |
674 | ||
675 | sd_event_set_watchdog(m->event, true); | |
676 | ||
677 | r = sd_bus_default_system(&m->bus); | |
678 | if (r < 0) | |
679 | return r; | |
680 | ||
7079cfef LP |
681 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
682 | if (m->notify_fd < 0) | |
683 | return -errno; | |
684 | ||
685 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
686 | (void) unlink(sa.un.sun_path); | |
687 | ||
688 | if (bind(m->notify_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0) | |
689 | return -errno; | |
690 | ||
691 | if (setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) | |
692 | return -errno; | |
693 | ||
694 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_on_notify, m); | |
695 | if (r < 0) | |
696 | return r; | |
697 | ||
3d7415f4 LP |
698 | *ret = m; |
699 | m = NULL; | |
700 | ||
701 | return 0; | |
702 | } | |
703 | ||
704 | static Transfer *manager_find(Manager *m, TransferType type, const char *dkr_index_url, const char *remote) { | |
705 | Transfer *t; | |
706 | Iterator i; | |
707 | ||
708 | assert(m); | |
709 | assert(type >= 0); | |
710 | assert(type < _TRANSFER_TYPE_MAX); | |
711 | ||
712 | HASHMAP_FOREACH(t, m->transfers, i) { | |
713 | ||
714 | if (t->type == type && | |
715 | streq_ptr(t->remote, remote) && | |
716 | streq_ptr(t->dkr_index_url, dkr_index_url)) | |
717 | return t; | |
718 | } | |
719 | ||
720 | return NULL; | |
721 | } | |
722 | ||
19070062 | 723 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
b6e676ce LP |
724 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
725 | int fd, force, read_only, r; | |
726 | const char *local, *object; | |
727 | Manager *m = userdata; | |
728 | TransferType type; | |
729 | uint32_t id; | |
730 | ||
19070062 LP |
731 | assert(msg); |
732 | assert(m); | |
733 | ||
b6e676ce LP |
734 | r = bus_verify_polkit_async( |
735 | msg, | |
736 | CAP_SYS_ADMIN, | |
737 | "org.freedesktop.import1.import", | |
403ed0e5 | 738 | NULL, |
b6e676ce LP |
739 | false, |
740 | UID_INVALID, | |
741 | &m->polkit_registry, | |
742 | error); | |
743 | if (r < 0) | |
744 | return r; | |
745 | if (r == 0) | |
746 | return 1; /* Will call us back */ | |
747 | ||
748 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
749 | if (r < 0) | |
750 | return r; | |
751 | ||
752 | if (!machine_name_is_valid(local)) | |
753 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
754 | ||
755 | r = setup_machine_directory((uint64_t) -1, error); | |
756 | if (r < 0) | |
757 | return r; | |
758 | ||
759 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
760 | ||
761 | r = transfer_new(m, &t); | |
762 | if (r < 0) | |
763 | return r; | |
764 | ||
765 | t->type = type; | |
766 | t->force_local = force; | |
767 | t->read_only = read_only; | |
768 | ||
769 | t->local = strdup(local); | |
770 | if (!t->local) | |
771 | return -ENOMEM; | |
772 | ||
773 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
774 | if (t->stdin_fd < 0) | |
775 | return -errno; | |
776 | ||
777 | r = transfer_start(t); | |
778 | if (r < 0) | |
779 | return r; | |
780 | ||
781 | object = t->object_path; | |
782 | id = t->id; | |
783 | t = NULL; | |
784 | ||
785 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
786 | } | |
787 | ||
19070062 | 788 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
587fec42 LP |
789 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
790 | int fd, r; | |
791 | const char *local, *object, *format; | |
792 | Manager *m = userdata; | |
793 | TransferType type; | |
794 | uint32_t id; | |
795 | ||
19070062 LP |
796 | assert(msg); |
797 | assert(m); | |
798 | ||
587fec42 LP |
799 | r = bus_verify_polkit_async( |
800 | msg, | |
801 | CAP_SYS_ADMIN, | |
802 | "org.freedesktop.import1.export", | |
403ed0e5 | 803 | NULL, |
587fec42 LP |
804 | false, |
805 | UID_INVALID, | |
806 | &m->polkit_registry, | |
807 | error); | |
808 | if (r < 0) | |
809 | return r; | |
810 | if (r == 0) | |
811 | return 1; /* Will call us back */ | |
812 | ||
813 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
814 | if (r < 0) | |
815 | return r; | |
816 | ||
817 | if (!machine_name_is_valid(local)) | |
818 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
819 | ||
820 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
821 | ||
822 | r = transfer_new(m, &t); | |
823 | if (r < 0) | |
824 | return r; | |
825 | ||
826 | t->type = type; | |
827 | ||
828 | if (!isempty(format)) { | |
829 | t->format = strdup(format); | |
830 | if (!t->format) | |
831 | return -ENOMEM; | |
832 | } | |
833 | ||
834 | t->local = strdup(local); | |
835 | if (!t->local) | |
836 | return -ENOMEM; | |
837 | ||
838 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
839 | if (t->stdout_fd < 0) | |
840 | return -errno; | |
841 | ||
842 | r = transfer_start(t); | |
843 | if (r < 0) | |
844 | return r; | |
845 | ||
846 | object = t->object_path; | |
847 | id = t->id; | |
848 | t = NULL; | |
849 | ||
850 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
851 | } | |
852 | ||
19070062 | 853 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
854 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
855 | const char *remote, *local, *verify, *object; | |
856 | Manager *m = userdata; | |
857 | ImportVerify v; | |
858 | TransferType type; | |
859 | int force, r; | |
860 | uint32_t id; | |
861 | ||
3d7415f4 LP |
862 | assert(msg); |
863 | assert(m); | |
864 | ||
865 | r = bus_verify_polkit_async( | |
866 | msg, | |
867 | CAP_SYS_ADMIN, | |
868 | "org.freedesktop.import1.pull", | |
403ed0e5 | 869 | NULL, |
3d7415f4 | 870 | false, |
c529695e | 871 | UID_INVALID, |
3d7415f4 LP |
872 | &m->polkit_registry, |
873 | error); | |
874 | if (r < 0) | |
875 | return r; | |
876 | if (r == 0) | |
877 | return 1; /* Will call us back */ | |
878 | ||
879 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
880 | if (r < 0) | |
881 | return r; | |
882 | ||
883 | if (!http_url_is_valid(remote)) | |
884 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "URL %s is invalid", remote); | |
885 | ||
886 | if (isempty(local)) | |
887 | local = NULL; | |
888 | else if (!machine_name_is_valid(local)) | |
889 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
890 | ||
891 | if (isempty(verify)) | |
892 | v = IMPORT_VERIFY_SIGNATURE; | |
893 | else | |
894 | v = import_verify_from_string(verify); | |
895 | if (v < 0) | |
896 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
897 | ||
4cee5eed | 898 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
899 | if (r < 0) |
900 | return r; | |
901 | ||
b6e676ce | 902 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; |
3d7415f4 LP |
903 | |
904 | if (manager_find(m, type, NULL, remote)) | |
905 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); | |
906 | ||
907 | r = transfer_new(m, &t); | |
908 | if (r < 0) | |
909 | return r; | |
910 | ||
911 | t->type = type; | |
912 | t->verify = v; | |
913 | t->force_local = force; | |
914 | ||
915 | t->remote = strdup(remote); | |
916 | if (!t->remote) | |
917 | return -ENOMEM; | |
918 | ||
b6e676ce LP |
919 | if (local) { |
920 | t->local = strdup(local); | |
921 | if (!t->local) | |
922 | return -ENOMEM; | |
923 | } | |
3d7415f4 LP |
924 | |
925 | r = transfer_start(t); | |
926 | if (r < 0) | |
927 | return r; | |
928 | ||
929 | object = t->object_path; | |
930 | id = t->id; | |
931 | t = NULL; | |
932 | ||
933 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
934 | } | |
935 | ||
19070062 | 936 | static int method_pull_dkr(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
937 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
938 | const char *index_url, *remote, *tag, *local, *verify, *object; | |
939 | Manager *m = userdata; | |
940 | ImportVerify v; | |
941 | int force, r; | |
942 | uint32_t id; | |
943 | ||
3d7415f4 LP |
944 | assert(msg); |
945 | assert(m); | |
946 | ||
947 | r = bus_verify_polkit_async( | |
948 | msg, | |
949 | CAP_SYS_ADMIN, | |
950 | "org.freedesktop.import1.pull", | |
403ed0e5 | 951 | NULL, |
3d7415f4 | 952 | false, |
c529695e | 953 | UID_INVALID, |
3d7415f4 LP |
954 | &m->polkit_registry, |
955 | error); | |
956 | if (r < 0) | |
957 | return r; | |
958 | if (r == 0) | |
959 | return 1; /* Will call us back */ | |
960 | ||
961 | r = sd_bus_message_read(msg, "sssssb", &index_url, &remote, &tag, &local, &verify, &force); | |
962 | if (r < 0) | |
963 | return r; | |
964 | ||
965 | if (isempty(index_url)) | |
966 | index_url = DEFAULT_DKR_INDEX_URL; | |
967 | if (!index_url) | |
968 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL must be specified."); | |
969 | if (!http_url_is_valid(index_url)) | |
970 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL %s is invalid", index_url); | |
971 | ||
972 | if (!dkr_name_is_valid(remote)) | |
973 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Remote name %s is not valid", remote); | |
974 | ||
975 | if (isempty(tag)) | |
976 | tag = "latest"; | |
977 | else if (!dkr_tag_is_valid(tag)) | |
978 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Tag %s is not valid", tag); | |
979 | ||
980 | if (isempty(local)) | |
981 | local = NULL; | |
982 | else if (!machine_name_is_valid(local)) | |
983 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
984 | ||
985 | if (isempty(verify)) | |
986 | v = IMPORT_VERIFY_SIGNATURE; | |
987 | else | |
988 | v = import_verify_from_string(verify); | |
989 | if (v < 0) | |
990 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
991 | ||
992 | if (v != IMPORT_VERIFY_NO) | |
993 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "DKR does not support verification."); | |
994 | ||
4cee5eed | 995 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
996 | if (r < 0) |
997 | return r; | |
998 | ||
b6e676ce | 999 | if (manager_find(m, TRANSFER_PULL_DKR, index_url, remote)) |
3d7415f4 LP |
1000 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); |
1001 | ||
1002 | r = transfer_new(m, &t); | |
1003 | if (r < 0) | |
1004 | return r; | |
1005 | ||
b6e676ce | 1006 | t->type = TRANSFER_PULL_DKR; |
3d7415f4 LP |
1007 | t->verify = v; |
1008 | t->force_local = force; | |
1009 | ||
1010 | t->dkr_index_url = strdup(index_url); | |
1011 | if (!t->dkr_index_url) | |
1012 | return -ENOMEM; | |
1013 | ||
1014 | t->remote = strjoin(remote, ":", tag, NULL); | |
1015 | if (!t->remote) | |
1016 | return -ENOMEM; | |
1017 | ||
b6e676ce LP |
1018 | if (local) { |
1019 | t->local = strdup(local); | |
1020 | if (!t->local) | |
1021 | return -ENOMEM; | |
1022 | } | |
3d7415f4 LP |
1023 | |
1024 | r = transfer_start(t); | |
1025 | if (r < 0) | |
1026 | return r; | |
1027 | ||
1028 | object = t->object_path; | |
1029 | id = t->id; | |
1030 | t = NULL; | |
1031 | ||
1032 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
1033 | } | |
1034 | ||
19070062 | 1035 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1036 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
1037 | Manager *m = userdata; | |
1038 | Transfer *t; | |
1039 | Iterator i; | |
1040 | int r; | |
1041 | ||
3d7415f4 LP |
1042 | assert(msg); |
1043 | assert(m); | |
1044 | ||
1045 | r = sd_bus_message_new_method_return(msg, &reply); | |
1046 | if (r < 0) | |
1047 | return r; | |
1048 | ||
7079cfef | 1049 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
1050 | if (r < 0) |
1051 | return r; | |
1052 | ||
1053 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1054 | ||
1055 | r = sd_bus_message_append( | |
1056 | reply, | |
7079cfef | 1057 | "(usssdo)", |
3d7415f4 LP |
1058 | t->id, |
1059 | transfer_type_to_string(t->type), | |
1060 | t->remote, | |
1061 | t->local, | |
7079cfef | 1062 | (double) t->progress_percent / 100.0, |
3d7415f4 LP |
1063 | t->object_path); |
1064 | if (r < 0) | |
1065 | return r; | |
1066 | } | |
1067 | ||
1068 | r = sd_bus_message_close_container(reply); | |
1069 | if (r < 0) | |
1070 | return r; | |
1071 | ||
9030ca46 | 1072 | return sd_bus_send(NULL, reply, NULL); |
3d7415f4 LP |
1073 | } |
1074 | ||
19070062 | 1075 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1076 | Transfer *t = userdata; |
1077 | int r; | |
1078 | ||
3d7415f4 LP |
1079 | assert(msg); |
1080 | assert(t); | |
1081 | ||
1082 | r = bus_verify_polkit_async( | |
1083 | msg, | |
1084 | CAP_SYS_ADMIN, | |
1085 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1086 | NULL, |
3d7415f4 | 1087 | false, |
c529695e | 1088 | UID_INVALID, |
3d7415f4 LP |
1089 | &t->manager->polkit_registry, |
1090 | error); | |
1091 | if (r < 0) | |
1092 | return r; | |
1093 | if (r == 0) | |
1094 | return 1; /* Will call us back */ | |
1095 | ||
1096 | r = transfer_cancel(t); | |
1097 | if (r < 0) | |
1098 | return r; | |
1099 | ||
1100 | return sd_bus_reply_method_return(msg, NULL); | |
1101 | } | |
1102 | ||
19070062 | 1103 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1104 | Manager *m = userdata; |
1105 | Transfer *t; | |
1106 | uint32_t id; | |
1107 | int r; | |
1108 | ||
3d7415f4 LP |
1109 | assert(msg); |
1110 | assert(m); | |
1111 | ||
1112 | r = bus_verify_polkit_async( | |
1113 | msg, | |
1114 | CAP_SYS_ADMIN, | |
1115 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1116 | NULL, |
3d7415f4 | 1117 | false, |
c529695e | 1118 | UID_INVALID, |
3d7415f4 LP |
1119 | &m->polkit_registry, |
1120 | error); | |
1121 | if (r < 0) | |
1122 | return r; | |
1123 | if (r == 0) | |
1124 | return 1; /* Will call us back */ | |
1125 | ||
1126 | r = sd_bus_message_read(msg, "u", &id); | |
1127 | if (r < 0) | |
1128 | return r; | |
1129 | if (id <= 0) | |
1130 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); | |
1131 | ||
1132 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1133 | if (!t) | |
09d46cfd | 1134 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1135 | |
1136 | r = transfer_cancel(t); | |
1137 | if (r < 0) | |
1138 | return r; | |
1139 | ||
1140 | return sd_bus_reply_method_return(msg, NULL); | |
1141 | } | |
1142 | ||
7079cfef LP |
1143 | static int property_get_progress( |
1144 | sd_bus *bus, | |
1145 | const char *path, | |
1146 | const char *interface, | |
1147 | const char *property, | |
1148 | sd_bus_message *reply, | |
1149 | void *userdata, | |
1150 | sd_bus_error *error) { | |
1151 | ||
1152 | Transfer *t = userdata; | |
1153 | ||
1154 | assert(bus); | |
1155 | assert(reply); | |
1156 | assert(t); | |
1157 | ||
1158 | return sd_bus_message_append(reply, "d", (double) t->progress_percent / 100.0); | |
1159 | } | |
1160 | ||
3d7415f4 LP |
1161 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1162 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1163 | ||
1164 | static const sd_bus_vtable transfer_vtable[] = { | |
1165 | SD_BUS_VTABLE_START(0), | |
1166 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
1167 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1168 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1169 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1170 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1171 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
3d7415f4 LP |
1172 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
1173 | SD_BUS_SIGNAL("LogMessage", "us", 0), | |
1174 | SD_BUS_VTABLE_END, | |
1175 | }; | |
1176 | ||
1177 | static const sd_bus_vtable manager_vtable[] = { | |
1178 | SD_BUS_VTABLE_START(0), | |
b6e676ce LP |
1179 | SD_BUS_METHOD("ImportTar", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1180 | SD_BUS_METHOD("ImportRaw", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
587fec42 LP |
1181 | SD_BUS_METHOD("ExportTar", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1182 | SD_BUS_METHOD("ExportRaw", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
3d7415f4 LP |
1183 | SD_BUS_METHOD("PullTar", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1184 | SD_BUS_METHOD("PullRaw", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1185 | SD_BUS_METHOD("PullDkr", "sssssb", "uo", method_pull_dkr, SD_BUS_VTABLE_UNPRIVILEGED), | |
7079cfef | 1186 | SD_BUS_METHOD("ListTransfers", NULL, "a(usssdo)", method_list_transfers, SD_BUS_VTABLE_UNPRIVILEGED), |
3d7415f4 LP |
1187 | SD_BUS_METHOD("CancelTransfer", "u", NULL, method_cancel_transfer, SD_BUS_VTABLE_UNPRIVILEGED), |
1188 | SD_BUS_SIGNAL("TransferNew", "uo", 0), | |
1189 | SD_BUS_SIGNAL("TransferRemoved", "uos", 0), | |
1190 | SD_BUS_VTABLE_END, | |
1191 | }; | |
1192 | ||
1193 | static int transfer_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
1194 | Manager *m = userdata; | |
1195 | Transfer *t; | |
1196 | const char *p; | |
1197 | uint32_t id; | |
1198 | int r; | |
1199 | ||
1200 | assert(bus); | |
1201 | assert(path); | |
1202 | assert(interface); | |
1203 | assert(found); | |
1204 | assert(m); | |
1205 | ||
1206 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1207 | if (!p) | |
1208 | return 0; | |
1209 | ||
1210 | r = safe_atou32(p, &id); | |
1211 | if (r < 0 || id == 0) | |
1212 | return 0; | |
1213 | ||
1214 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1215 | if (!t) | |
1216 | return 0; | |
1217 | ||
1218 | *found = t; | |
1219 | return 1; | |
1220 | } | |
1221 | ||
1222 | static int transfer_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
1223 | _cleanup_strv_free_ char **l = NULL; | |
1224 | Manager *m = userdata; | |
1225 | Transfer *t; | |
1226 | unsigned k = 0; | |
1227 | Iterator i; | |
1228 | ||
1229 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1230 | if (!l) | |
1231 | return -ENOMEM; | |
1232 | ||
1233 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1234 | ||
1235 | l[k] = strdup(t->object_path); | |
1236 | if (!l[k]) | |
1237 | return -ENOMEM; | |
1238 | ||
1239 | k++; | |
1240 | } | |
1241 | ||
1242 | *nodes = l; | |
1243 | l = NULL; | |
1244 | ||
1245 | return 1; | |
1246 | } | |
1247 | ||
1248 | static int manager_add_bus_objects(Manager *m) { | |
1249 | int r; | |
1250 | ||
1251 | assert(m); | |
1252 | ||
1253 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/import1", "org.freedesktop.import1.Manager", manager_vtable, m); | |
1254 | if (r < 0) | |
1255 | return log_error_errno(r, "Failed to register object: %m"); | |
1256 | ||
1257 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/import1/transfer", "org.freedesktop.import1.Transfer", transfer_vtable, transfer_object_find, m); | |
1258 | if (r < 0) | |
1259 | return log_error_errno(r, "Failed to register object: %m"); | |
1260 | ||
1261 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/import1/transfer", transfer_node_enumerator, m); | |
1262 | if (r < 0) | |
1263 | return log_error_errno(r, "Failed to add transfer enumerator: %m"); | |
1264 | ||
1265 | r = sd_bus_request_name(m->bus, "org.freedesktop.import1", 0); | |
1266 | if (r < 0) | |
1267 | return log_error_errno(r, "Failed to register name: %m"); | |
1268 | ||
1269 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1270 | if (r < 0) | |
1271 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1272 | ||
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | static bool manager_check_idle(void *userdata) { | |
1277 | Manager *m = userdata; | |
1278 | ||
1279 | return hashmap_isempty(m->transfers); | |
1280 | } | |
1281 | ||
1282 | static int manager_run(Manager *m) { | |
1283 | assert(m); | |
1284 | ||
1285 | return bus_event_loop_with_idle( | |
1286 | m->event, | |
1287 | m->bus, | |
1288 | "org.freedesktop.import1", | |
1289 | DEFAULT_EXIT_USEC, | |
1290 | manager_check_idle, | |
1291 | m); | |
1292 | } | |
1293 | ||
1294 | int main(int argc, char *argv[]) { | |
1295 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
1296 | int r; | |
1297 | ||
1298 | log_set_target(LOG_TARGET_AUTO); | |
1299 | log_parse_environment(); | |
1300 | log_open(); | |
1301 | ||
1302 | umask(0022); | |
1303 | ||
1304 | if (argc != 1) { | |
1305 | log_error("This program takes no arguments."); | |
1306 | r = -EINVAL; | |
1307 | goto finish; | |
1308 | } | |
1309 | ||
72c0a2c2 | 1310 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); |
3d7415f4 LP |
1311 | |
1312 | r = manager_new(&m); | |
1313 | if (r < 0) { | |
1314 | log_error_errno(r, "Failed to allocate manager object: %m"); | |
1315 | goto finish; | |
1316 | } | |
1317 | ||
1318 | r = manager_add_bus_objects(m); | |
1319 | if (r < 0) | |
1320 | goto finish; | |
1321 | ||
1322 | r = manager_run(m); | |
1323 | if (r < 0) { | |
1324 | log_error_errno(r, "Failed to run event loop: %m"); | |
1325 | goto finish; | |
1326 | } | |
1327 | ||
1328 | finish: | |
1329 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1330 | } |