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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
3d7415f4 LP |
2 | |
3 | #include <sys/prctl.h> | |
d7e454ba | 4 | #include <sys/wait.h> |
3d7415f4 LP |
5 | |
6 | #include "sd-bus.h" | |
3ffd4af2 | 7 | |
b5efdb8a | 8 | #include "alloc-util.h" |
3d7415f4 | 9 | #include "bus-common-errors.h" |
3ffd4af2 | 10 | #include "bus-util.h" |
a97dcc12 | 11 | #include "def.h" |
3ffd4af2 | 12 | #include "fd-util.h" |
1d7579c4 | 13 | #include "float.h" |
3ffd4af2 LP |
14 | #include "hostname-util.h" |
15 | #include "import-util.h" | |
432cea00 | 16 | #include "machine-pool.h" |
5e332028 | 17 | #include "main-func.h" |
3ffd4af2 LP |
18 | #include "missing.h" |
19 | #include "mkdir.h" | |
6bedfcbb | 20 | #include "parse-util.h" |
113b3fc1 | 21 | #include "path-util.h" |
0b452006 | 22 | #include "process-util.h" |
24882e06 | 23 | #include "signal-util.h" |
3ffd4af2 | 24 | #include "socket-util.h" |
176a05c2 | 25 | #include "stat-util.h" |
8b43440b | 26 | #include "string-table.h" |
3ffd4af2 | 27 | #include "strv.h" |
7ccbd1ae | 28 | #include "syslog-util.h" |
ee104e11 | 29 | #include "user-util.h" |
3ffd4af2 | 30 | #include "util.h" |
49cf4170 | 31 | #include "web-util.h" |
3d7415f4 LP |
32 | |
33 | typedef struct Transfer Transfer; | |
34 | typedef struct Manager Manager; | |
35 | ||
36 | typedef enum TransferType { | |
b6e676ce LP |
37 | TRANSFER_IMPORT_TAR, |
38 | TRANSFER_IMPORT_RAW, | |
1d7579c4 | 39 | TRANSFER_IMPORT_FS, |
587fec42 LP |
40 | TRANSFER_EXPORT_TAR, |
41 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
42 | TRANSFER_PULL_TAR, |
43 | TRANSFER_PULL_RAW, | |
3d7415f4 LP |
44 | _TRANSFER_TYPE_MAX, |
45 | _TRANSFER_TYPE_INVALID = -1, | |
46 | } TransferType; | |
47 | ||
48 | struct Transfer { | |
49 | Manager *manager; | |
50 | ||
51 | uint32_t id; | |
52 | char *object_path; | |
53 | ||
54 | TransferType type; | |
55 | ImportVerify verify; | |
56 | ||
57 | char *remote; | |
58 | char *local; | |
59 | bool force_local; | |
b6e676ce | 60 | bool read_only; |
3d7415f4 | 61 | |
587fec42 | 62 | char *format; |
3d7415f4 LP |
63 | |
64 | pid_t pid; | |
65 | ||
66 | int log_fd; | |
67 | ||
68 | char log_message[LINE_MAX]; | |
69 | size_t log_message_size; | |
70 | ||
71 | sd_event_source *pid_event_source; | |
72 | sd_event_source *log_event_source; | |
73 | ||
74 | unsigned n_canceled; | |
7079cfef | 75 | unsigned progress_percent; |
b6e676ce LP |
76 | |
77 | int stdin_fd; | |
587fec42 | 78 | int stdout_fd; |
3d7415f4 LP |
79 | }; |
80 | ||
81 | struct Manager { | |
82 | sd_event *event; | |
83 | sd_bus *bus; | |
84 | ||
85 | uint32_t current_transfer_id; | |
86 | Hashmap *transfers; | |
87 | ||
88 | Hashmap *polkit_registry; | |
7079cfef LP |
89 | |
90 | int notify_fd; | |
91 | ||
92 | sd_event_source *notify_event_source; | |
3d7415f4 LP |
93 | }; |
94 | ||
95 | #define TRANSFERS_MAX 64 | |
96 | ||
97 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
98 | [TRANSFER_IMPORT_TAR] = "import-tar", |
99 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
1d7579c4 | 100 | [TRANSFER_IMPORT_FS] = "import-fs", |
587fec42 LP |
101 | [TRANSFER_EXPORT_TAR] = "export-tar", |
102 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b6e676ce LP |
103 | [TRANSFER_PULL_TAR] = "pull-tar", |
104 | [TRANSFER_PULL_RAW] = "pull-raw", | |
3d7415f4 LP |
105 | }; |
106 | ||
b9a5f858 | 107 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
108 | |
109 | static Transfer *transfer_unref(Transfer *t) { | |
110 | if (!t) | |
111 | return NULL; | |
112 | ||
113 | if (t->manager) | |
114 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
115 | ||
116 | sd_event_source_unref(t->pid_event_source); | |
117 | sd_event_source_unref(t->log_event_source); | |
118 | ||
119 | free(t->remote); | |
120 | free(t->local); | |
587fec42 | 121 | free(t->format); |
3d7415f4 LP |
122 | free(t->object_path); |
123 | ||
124 | if (t->pid > 0) { | |
125 | (void) kill_and_sigcont(t->pid, SIGKILL); | |
126 | (void) wait_for_terminate(t->pid, NULL); | |
127 | } | |
128 | ||
129 | safe_close(t->log_fd); | |
b6e676ce | 130 | safe_close(t->stdin_fd); |
587fec42 | 131 | safe_close(t->stdout_fd); |
3d7415f4 | 132 | |
6b430fdb | 133 | return mfree(t); |
3d7415f4 LP |
134 | } |
135 | ||
136 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
137 | ||
138 | static int transfer_new(Manager *m, Transfer **ret) { | |
139 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
140 | uint32_t id; | |
141 | int r; | |
142 | ||
143 | assert(m); | |
144 | assert(ret); | |
145 | ||
146 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
147 | return -E2BIG; | |
148 | ||
149 | r = hashmap_ensure_allocated(&m->transfers, &trivial_hash_ops); | |
150 | if (r < 0) | |
151 | return r; | |
152 | ||
0d94088e | 153 | t = new(Transfer, 1); |
3d7415f4 LP |
154 | if (!t) |
155 | return -ENOMEM; | |
156 | ||
0d94088e YW |
157 | *t = (Transfer) { |
158 | .type = _TRANSFER_TYPE_INVALID, | |
159 | .log_fd = -1, | |
160 | .stdin_fd = -1, | |
161 | .stdout_fd = -1, | |
162 | .verify = _IMPORT_VERIFY_INVALID, | |
1d7579c4 | 163 | .progress_percent= (unsigned) -1, |
0d94088e | 164 | }; |
3d7415f4 LP |
165 | |
166 | id = m->current_transfer_id + 1; | |
167 | ||
168 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
169 | return -ENOMEM; | |
170 | ||
171 | r = hashmap_put(m->transfers, UINT32_TO_PTR(id), t); | |
172 | if (r < 0) | |
173 | return r; | |
174 | ||
175 | m->current_transfer_id = id; | |
176 | ||
177 | t->manager = m; | |
178 | t->id = id; | |
179 | ||
1cc6c93a | 180 | *ret = TAKE_PTR(t); |
3d7415f4 LP |
181 | |
182 | return 0; | |
183 | } | |
184 | ||
1d7579c4 LP |
185 | static double transfer_percent_as_double(Transfer *t) { |
186 | assert(t); | |
187 | ||
188 | if (t->progress_percent == (unsigned) -1) | |
189 | return -DBL_MAX; | |
190 | ||
191 | return (double) t->progress_percent / 100.0; | |
192 | } | |
193 | ||
3d7415f4 LP |
194 | static void transfer_send_log_line(Transfer *t, const char *line) { |
195 | int r, priority = LOG_INFO; | |
196 | ||
197 | assert(t); | |
198 | assert(line); | |
199 | ||
200 | syslog_parse_priority(&line, &priority, true); | |
201 | ||
09d46cfd | 202 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
203 | |
204 | r = sd_bus_emit_signal( | |
205 | t->manager->bus, | |
206 | t->object_path, | |
207 | "org.freedesktop.import1.Transfer", | |
208 | "LogMessage", | |
209 | "us", | |
210 | priority, | |
211 | line); | |
212 | if (r < 0) | |
5b6299ee | 213 | log_warning_errno(r, "Cannot emit log message signal, ignoring: %m"); |
3d7415f4 LP |
214 | } |
215 | ||
216 | static void transfer_send_logs(Transfer *t, bool flush) { | |
217 | assert(t); | |
218 | ||
219 | /* Try to send out all log messages, if we can. But if we | |
220 | * can't we remove the messages from the buffer, but don't | |
221 | * fail */ | |
222 | ||
223 | while (t->log_message_size > 0) { | |
224 | _cleanup_free_ char *n = NULL; | |
225 | char *e; | |
226 | ||
227 | if (t->log_message_size >= sizeof(t->log_message)) | |
228 | e = t->log_message + sizeof(t->log_message); | |
229 | else { | |
230 | char *a, *b; | |
231 | ||
232 | a = memchr(t->log_message, 0, t->log_message_size); | |
233 | b = memchr(t->log_message, '\n', t->log_message_size); | |
234 | ||
235 | if (a && b) | |
236 | e = a < b ? a : b; | |
237 | else if (a) | |
238 | e = a; | |
239 | else | |
240 | e = b; | |
241 | } | |
242 | ||
243 | if (!e) { | |
244 | if (!flush) | |
245 | return; | |
246 | ||
247 | e = t->log_message + t->log_message_size; | |
248 | } | |
249 | ||
250 | n = strndup(t->log_message, e - t->log_message); | |
251 | ||
252 | /* Skip over NUL and newlines */ | |
ed0cb346 | 253 | while (e < t->log_message + t->log_message_size && IN_SET(*e, 0, '\n')) |
3d7415f4 LP |
254 | e++; |
255 | ||
256 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
257 | t->log_message_size -= e - t->log_message; | |
258 | ||
259 | if (!n) { | |
260 | log_oom(); | |
261 | continue; | |
262 | } | |
263 | ||
264 | if (isempty(n)) | |
265 | continue; | |
266 | ||
267 | transfer_send_log_line(t, n); | |
268 | } | |
269 | } | |
270 | ||
271 | static int transfer_finalize(Transfer *t, bool success) { | |
272 | int r; | |
273 | ||
274 | assert(t); | |
275 | ||
276 | transfer_send_logs(t, true); | |
277 | ||
278 | r = sd_bus_emit_signal( | |
279 | t->manager->bus, | |
280 | "/org/freedesktop/import1", | |
281 | "org.freedesktop.import1.Manager", | |
282 | "TransferRemoved", | |
283 | "uos", | |
284 | t->id, | |
285 | t->object_path, | |
286 | success ? "done" : | |
287 | t->n_canceled > 0 ? "canceled" : "failed"); | |
288 | ||
289 | if (r < 0) | |
290 | log_error_errno(r, "Cannot emit message: %m"); | |
291 | ||
292 | transfer_unref(t); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | static int transfer_cancel(Transfer *t) { | |
297 | int r; | |
298 | ||
299 | assert(t); | |
300 | ||
301 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
302 | if (r < 0) | |
303 | return r; | |
304 | ||
305 | t->n_canceled++; | |
306 | return 0; | |
307 | } | |
308 | ||
309 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
310 | Transfer *t = userdata; | |
311 | bool success = false; | |
312 | ||
313 | assert(s); | |
314 | assert(t); | |
315 | ||
316 | if (si->si_code == CLD_EXITED) { | |
317 | if (si->si_status != 0) | |
4b71c27b | 318 | log_error("Transfer process failed with exit code %i.", si->si_status); |
3d7415f4 | 319 | else { |
4b71c27b | 320 | log_debug("Transfer process succeeded."); |
3d7415f4 LP |
321 | success = true; |
322 | } | |
323 | ||
3742095b | 324 | } else if (IN_SET(si->si_code, CLD_KILLED, CLD_DUMPED)) |
4b71c27b | 325 | log_error("Transfer process terminated by signal %s.", signal_to_string(si->si_status)); |
3d7415f4 | 326 | else |
4b71c27b | 327 | log_error("Transfer process failed due to unknown reason."); |
3d7415f4 LP |
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); | |
b0325c99 LP |
342 | if (l < 0) |
343 | log_error_errno(errno, "Failed to read log message: %m"); | |
3d7415f4 LP |
344 | if (l <= 0) { |
345 | /* EOF/read error. We just close the pipe here, and | |
346 | * close the watch, waiting for the SIGCHLD to arrive, | |
347 | * before we do anything else. */ | |
3d7415f4 LP |
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 | ||
4c253ed1 LP |
369 | r = safe_fork("(sd-transfer)", FORK_RESET_SIGNALS|FORK_DEATHSIG, &t->pid); |
370 | if (r < 0) | |
371 | return r; | |
372 | if (r == 0) { | |
3d7415f4 | 373 | const char *cmd[] = { |
1d7579c4 | 374 | NULL, /* systemd-import, systemd-import-fs, systemd-export or systemd-pull */ |
b43d75c3 | 375 | NULL, /* tar, raw */ |
b6e676ce | 376 | NULL, /* --verify= */ |
3d7415f4 LP |
377 | NULL, /* verify argument */ |
378 | NULL, /* maybe --force */ | |
b6e676ce | 379 | NULL, /* maybe --read-only */ |
587fec42 LP |
380 | NULL, /* if so: the actual URL */ |
381 | NULL, /* maybe --format= */ | |
382 | NULL, /* if so: the actual format */ | |
3d7415f4 LP |
383 | NULL, /* remote */ |
384 | NULL, /* local */ | |
385 | NULL | |
386 | }; | |
b6e676ce | 387 | unsigned k = 0; |
3d7415f4 LP |
388 | |
389 | /* Child */ | |
390 | ||
3d7415f4 LP |
391 | pipefd[0] = safe_close(pipefd[0]); |
392 | ||
2b33ab09 LP |
393 | r = rearrange_stdio(t->stdin_fd, |
394 | t->stdout_fd < 0 ? pipefd[1] : t->stdout_fd, | |
395 | pipefd[1]); | |
396 | if (r < 0) { | |
397 | log_error_errno(r, "Failed to set stdin/stdout/stderr: %m"); | |
3d7415f4 LP |
398 | _exit(EXIT_FAILURE); |
399 | } | |
400 | ||
df8067ef ZJS |
401 | if (setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1) < 0 || |
402 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1) < 0) { | |
403 | log_error_errno(errno, "setenv() failed: %m"); | |
404 | _exit(EXIT_FAILURE); | |
405 | } | |
3d7415f4 | 406 | |
1d7579c4 LP |
407 | switch (t->type) { |
408 | ||
409 | case TRANSFER_IMPORT_TAR: | |
410 | case TRANSFER_IMPORT_RAW: | |
b6e676ce | 411 | cmd[k++] = SYSTEMD_IMPORT_PATH; |
1d7579c4 LP |
412 | break; |
413 | ||
414 | case TRANSFER_IMPORT_FS: | |
415 | cmd[k++] = SYSTEMD_IMPORT_FS_PATH; | |
416 | break; | |
417 | ||
418 | case TRANSFER_EXPORT_TAR: | |
419 | case TRANSFER_EXPORT_RAW: | |
587fec42 | 420 | cmd[k++] = SYSTEMD_EXPORT_PATH; |
1d7579c4 LP |
421 | break; |
422 | ||
423 | case TRANSFER_PULL_TAR: | |
424 | case TRANSFER_PULL_RAW: | |
b6e676ce | 425 | cmd[k++] = SYSTEMD_PULL_PATH; |
1d7579c4 LP |
426 | break; |
427 | ||
428 | default: | |
429 | assert_not_reached("Unexpected transfer type"); | |
430 | } | |
431 | ||
432 | switch (t->type) { | |
b6e676ce | 433 | |
1d7579c4 LP |
434 | case TRANSFER_IMPORT_TAR: |
435 | case TRANSFER_EXPORT_TAR: | |
436 | case TRANSFER_PULL_TAR: | |
b6e676ce | 437 | cmd[k++] = "tar"; |
1d7579c4 LP |
438 | break; |
439 | ||
440 | case TRANSFER_IMPORT_RAW: | |
441 | case TRANSFER_EXPORT_RAW: | |
442 | case TRANSFER_PULL_RAW: | |
b43d75c3 | 443 | cmd[k++] = "raw"; |
1d7579c4 LP |
444 | break; |
445 | ||
446 | case TRANSFER_IMPORT_FS: | |
447 | cmd[k++] = "run"; | |
448 | break; | |
449 | ||
450 | default: | |
451 | break; | |
452 | } | |
b6e676ce LP |
453 | |
454 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
455 | cmd[k++] = "--verify"; | |
456 | cmd[k++] = import_verify_to_string(t->verify); | |
457 | } | |
458 | ||
3d7415f4 LP |
459 | if (t->force_local) |
460 | cmd[k++] = "--force"; | |
b6e676ce LP |
461 | if (t->read_only) |
462 | cmd[k++] = "--read-only"; | |
3d7415f4 | 463 | |
587fec42 LP |
464 | if (t->format) { |
465 | cmd[k++] = "--format"; | |
466 | cmd[k++] = t->format; | |
467 | } | |
468 | ||
469 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
470 | if (t->remote) | |
471 | cmd[k++] = t->remote; | |
472 | else | |
473 | cmd[k++] = "-"; | |
474 | } | |
b6e676ce | 475 | |
3d7415f4 LP |
476 | if (t->local) |
477 | cmd[k++] = t->local; | |
478 | cmd[k] = NULL; | |
479 | ||
b6e676ce LP |
480 | execv(cmd[0], (char * const *) cmd); |
481 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
482 | _exit(EXIT_FAILURE); |
483 | } | |
484 | ||
485 | pipefd[1] = safe_close(pipefd[1]); | |
c10d6bdb | 486 | t->log_fd = TAKE_FD(pipefd[0]); |
3d7415f4 | 487 | |
b6e676ce LP |
488 | t->stdin_fd = safe_close(t->stdin_fd); |
489 | ||
3d7415f4 LP |
490 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, t->pid, WEXITED, transfer_on_pid, t); |
491 | if (r < 0) | |
492 | return r; | |
493 | ||
494 | r = sd_event_add_io(t->manager->event, &t->log_event_source, t->log_fd, EPOLLIN, transfer_on_log, t); | |
495 | if (r < 0) | |
496 | return r; | |
497 | ||
498 | /* Make sure always process logging before SIGCHLD */ | |
499 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
500 | if (r < 0) | |
501 | return r; | |
502 | ||
503 | r = sd_bus_emit_signal( | |
504 | t->manager->bus, | |
505 | "/org/freedesktop/import1", | |
506 | "org.freedesktop.import1.Manager", | |
507 | "TransferNew", | |
508 | "uo", | |
509 | t->id, | |
510 | t->object_path); | |
511 | if (r < 0) | |
512 | return r; | |
513 | ||
514 | return 0; | |
515 | } | |
516 | ||
517 | static Manager *manager_unref(Manager *m) { | |
518 | Transfer *t; | |
519 | ||
520 | if (!m) | |
521 | return NULL; | |
522 | ||
7079cfef LP |
523 | sd_event_source_unref(m->notify_event_source); |
524 | safe_close(m->notify_fd); | |
525 | ||
3d7415f4 LP |
526 | while ((t = hashmap_first(m->transfers))) |
527 | transfer_unref(t); | |
528 | ||
529 | hashmap_free(m->transfers); | |
530 | ||
531 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
532 | ||
03976f7b | 533 | m->bus = sd_bus_flush_close_unref(m->bus); |
3d7415f4 LP |
534 | sd_event_unref(m->event); |
535 | ||
6b430fdb | 536 | return mfree(m); |
3d7415f4 LP |
537 | } |
538 | ||
539 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
540 | ||
7079cfef LP |
541 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
542 | ||
543 | char buf[NOTIFY_BUFFER_MAX+1]; | |
544 | struct iovec iovec = { | |
545 | .iov_base = buf, | |
546 | .iov_len = sizeof(buf)-1, | |
547 | }; | |
548 | union { | |
549 | struct cmsghdr cmsghdr; | |
550 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
551 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
552 | } control = {}; | |
553 | struct msghdr msghdr = { | |
554 | .msg_iov = &iovec, | |
555 | .msg_iovlen = 1, | |
556 | .msg_control = &control, | |
557 | .msg_controllen = sizeof(control), | |
558 | }; | |
559 | struct ucred *ucred = NULL; | |
560 | Manager *m = userdata; | |
561 | struct cmsghdr *cmsg; | |
7079cfef LP |
562 | char *p, *e; |
563 | Transfer *t; | |
564 | Iterator i; | |
565 | ssize_t n; | |
566 | int r; | |
567 | ||
568 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); | |
569 | if (n < 0) { | |
3742095b | 570 | if (IN_SET(errno, EAGAIN, EINTR)) |
7079cfef LP |
571 | return 0; |
572 | ||
573 | return -errno; | |
574 | } | |
575 | ||
1c8da044 LP |
576 | cmsg_close_all(&msghdr); |
577 | ||
3ee897d6 LP |
578 | CMSG_FOREACH(cmsg, &msghdr) |
579 | if (cmsg->cmsg_level == SOL_SOCKET && | |
580 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
581 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) | |
7079cfef | 582 | ucred = (struct ucred*) CMSG_DATA(cmsg); |
7079cfef LP |
583 | |
584 | if (msghdr.msg_flags & MSG_TRUNC) { | |
585 | log_warning("Got overly long notification datagram, ignoring."); | |
586 | return 0; | |
587 | } | |
588 | ||
589 | if (!ucred || ucred->pid <= 0) { | |
590 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
591 | return 0; | |
592 | } | |
593 | ||
594 | HASHMAP_FOREACH(t, m->transfers, i) | |
595 | if (ucred->pid == t->pid) | |
596 | break; | |
597 | ||
598 | if (!t) { | |
599 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
600 | return 0; | |
601 | } | |
602 | ||
603 | buf[n] = 0; | |
604 | ||
605 | p = startswith(buf, "X_IMPORT_PROGRESS="); | |
606 | if (!p) { | |
607 | p = strstr(buf, "\nX_IMPORT_PROGRESS="); | |
608 | if (!p) | |
609 | return 0; | |
610 | ||
611 | p += 19; | |
612 | } | |
613 | ||
614 | e = strchrnul(p, '\n'); | |
615 | *e = 0; | |
616 | ||
5a8582fb LP |
617 | r = parse_percent(p); |
618 | if (r < 0) { | |
7079cfef LP |
619 | log_warning("Got invalid percent value, ignoring."); |
620 | return 0; | |
621 | } | |
622 | ||
5a8582fb | 623 | t->progress_percent = (unsigned) r; |
7079cfef | 624 | |
5a8582fb | 625 | log_debug("Got percentage from client: %u%%", t->progress_percent); |
7079cfef LP |
626 | return 0; |
627 | } | |
628 | ||
3d7415f4 LP |
629 | static int manager_new(Manager **ret) { |
630 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
631 | static const union sockaddr_union sa = { |
632 | .un.sun_family = AF_UNIX, | |
633 | .un.sun_path = "/run/systemd/import/notify", | |
634 | }; | |
3d7415f4 LP |
635 | int r; |
636 | ||
637 | assert(ret); | |
638 | ||
639 | m = new0(Manager, 1); | |
640 | if (!m) | |
641 | return -ENOMEM; | |
642 | ||
643 | r = sd_event_default(&m->event); | |
644 | if (r < 0) | |
645 | return r; | |
646 | ||
647 | sd_event_set_watchdog(m->event, true); | |
648 | ||
649 | r = sd_bus_default_system(&m->bus); | |
650 | if (r < 0) | |
651 | return r; | |
652 | ||
7079cfef LP |
653 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
654 | if (m->notify_fd < 0) | |
655 | return -errno; | |
656 | ||
657 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
155b6876 | 658 | (void) sockaddr_un_unlink(&sa.un); |
7079cfef | 659 | |
fc2fffe7 | 660 | if (bind(m->notify_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) |
7079cfef LP |
661 | return -errno; |
662 | ||
2ff48e98 LP |
663 | r = setsockopt_int(m->notify_fd, SOL_SOCKET, SO_PASSCRED, true); |
664 | if (r < 0) | |
665 | return r; | |
7079cfef LP |
666 | |
667 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_on_notify, m); | |
668 | if (r < 0) | |
669 | return r; | |
670 | ||
1cc6c93a | 671 | *ret = TAKE_PTR(m); |
3d7415f4 LP |
672 | |
673 | return 0; | |
674 | } | |
675 | ||
b43d75c3 | 676 | static Transfer *manager_find(Manager *m, TransferType type, const char *remote) { |
3d7415f4 LP |
677 | Transfer *t; |
678 | Iterator i; | |
679 | ||
680 | assert(m); | |
681 | assert(type >= 0); | |
682 | assert(type < _TRANSFER_TYPE_MAX); | |
683 | ||
b0325c99 LP |
684 | HASHMAP_FOREACH(t, m->transfers, i) |
685 | if (t->type == type && streq_ptr(t->remote, remote)) | |
3d7415f4 | 686 | return t; |
3d7415f4 LP |
687 | |
688 | return NULL; | |
689 | } | |
690 | ||
19070062 | 691 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
b6e676ce LP |
692 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
693 | int fd, force, read_only, r; | |
694 | const char *local, *object; | |
695 | Manager *m = userdata; | |
696 | TransferType type; | |
697 | uint32_t id; | |
698 | ||
19070062 LP |
699 | assert(msg); |
700 | assert(m); | |
701 | ||
b6e676ce LP |
702 | r = bus_verify_polkit_async( |
703 | msg, | |
704 | CAP_SYS_ADMIN, | |
705 | "org.freedesktop.import1.import", | |
403ed0e5 | 706 | NULL, |
b6e676ce LP |
707 | false, |
708 | UID_INVALID, | |
709 | &m->polkit_registry, | |
710 | error); | |
711 | if (r < 0) | |
712 | return r; | |
713 | if (r == 0) | |
714 | return 1; /* Will call us back */ | |
715 | ||
716 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
717 | if (r < 0) | |
718 | return r; | |
719 | ||
176a05c2 LP |
720 | r = fd_verify_regular(fd); |
721 | if (r < 0) | |
722 | return r; | |
723 | ||
b6e676ce LP |
724 | if (!machine_name_is_valid(local)) |
725 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
726 | ||
5f7ecd61 | 727 | r = setup_machine_directory(error); |
b6e676ce LP |
728 | if (r < 0) |
729 | return r; | |
730 | ||
731 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
732 | ||
733 | r = transfer_new(m, &t); | |
734 | if (r < 0) | |
735 | return r; | |
736 | ||
737 | t->type = type; | |
738 | t->force_local = force; | |
739 | t->read_only = read_only; | |
740 | ||
741 | t->local = strdup(local); | |
742 | if (!t->local) | |
743 | return -ENOMEM; | |
744 | ||
745 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
746 | if (t->stdin_fd < 0) | |
747 | return -errno; | |
748 | ||
749 | r = transfer_start(t); | |
750 | if (r < 0) | |
751 | return r; | |
752 | ||
753 | object = t->object_path; | |
754 | id = t->id; | |
755 | t = NULL; | |
756 | ||
757 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
758 | } | |
759 | ||
1d7579c4 LP |
760 | static int method_import_fs(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
761 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
762 | int fd, force, read_only, r; | |
763 | const char *local, *object; | |
764 | Manager *m = userdata; | |
765 | uint32_t id; | |
766 | ||
767 | assert(msg); | |
768 | assert(m); | |
769 | ||
770 | r = bus_verify_polkit_async( | |
771 | msg, | |
772 | CAP_SYS_ADMIN, | |
773 | "org.freedesktop.import1.import", | |
774 | NULL, | |
775 | false, | |
776 | UID_INVALID, | |
777 | &m->polkit_registry, | |
778 | error); | |
779 | if (r < 0) | |
780 | return r; | |
781 | if (r == 0) | |
782 | return 1; /* Will call us back */ | |
783 | ||
784 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
785 | if (r < 0) | |
786 | return r; | |
787 | ||
176a05c2 LP |
788 | r = fd_verify_directory(fd); |
789 | if (r < 0) | |
790 | return r; | |
791 | ||
1d7579c4 LP |
792 | if (!machine_name_is_valid(local)) |
793 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
794 | ||
5f7ecd61 | 795 | r = setup_machine_directory(error); |
1d7579c4 LP |
796 | if (r < 0) |
797 | return r; | |
798 | ||
799 | r = transfer_new(m, &t); | |
800 | if (r < 0) | |
801 | return r; | |
802 | ||
803 | t->type = TRANSFER_IMPORT_FS; | |
804 | t->force_local = force; | |
805 | t->read_only = read_only; | |
806 | ||
807 | t->local = strdup(local); | |
808 | if (!t->local) | |
809 | return -ENOMEM; | |
810 | ||
811 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
812 | if (t->stdin_fd < 0) | |
813 | return -errno; | |
814 | ||
815 | r = transfer_start(t); | |
816 | if (r < 0) | |
817 | return r; | |
818 | ||
819 | object = t->object_path; | |
820 | id = t->id; | |
821 | t = NULL; | |
822 | ||
823 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
824 | } | |
825 | ||
19070062 | 826 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
587fec42 LP |
827 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
828 | int fd, r; | |
829 | const char *local, *object, *format; | |
830 | Manager *m = userdata; | |
831 | TransferType type; | |
832 | uint32_t id; | |
833 | ||
19070062 LP |
834 | assert(msg); |
835 | assert(m); | |
836 | ||
587fec42 LP |
837 | r = bus_verify_polkit_async( |
838 | msg, | |
839 | CAP_SYS_ADMIN, | |
840 | "org.freedesktop.import1.export", | |
403ed0e5 | 841 | NULL, |
587fec42 LP |
842 | false, |
843 | UID_INVALID, | |
844 | &m->polkit_registry, | |
845 | error); | |
846 | if (r < 0) | |
847 | return r; | |
848 | if (r == 0) | |
849 | return 1; /* Will call us back */ | |
850 | ||
851 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
852 | if (r < 0) | |
853 | return r; | |
854 | ||
855 | if (!machine_name_is_valid(local)) | |
856 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
857 | ||
176a05c2 LP |
858 | r = fd_verify_regular(fd); |
859 | if (r < 0) | |
860 | return r; | |
861 | ||
587fec42 LP |
862 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; |
863 | ||
864 | r = transfer_new(m, &t); | |
865 | if (r < 0) | |
866 | return r; | |
867 | ||
868 | t->type = type; | |
869 | ||
870 | if (!isempty(format)) { | |
871 | t->format = strdup(format); | |
872 | if (!t->format) | |
873 | return -ENOMEM; | |
874 | } | |
875 | ||
876 | t->local = strdup(local); | |
877 | if (!t->local) | |
878 | return -ENOMEM; | |
879 | ||
880 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
881 | if (t->stdout_fd < 0) | |
882 | return -errno; | |
883 | ||
884 | r = transfer_start(t); | |
885 | if (r < 0) | |
886 | return r; | |
887 | ||
888 | object = t->object_path; | |
889 | id = t->id; | |
890 | t = NULL; | |
891 | ||
892 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
893 | } | |
894 | ||
19070062 | 895 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
896 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
897 | const char *remote, *local, *verify, *object; | |
898 | Manager *m = userdata; | |
899 | ImportVerify v; | |
900 | TransferType type; | |
901 | int force, r; | |
902 | uint32_t id; | |
903 | ||
3d7415f4 LP |
904 | assert(msg); |
905 | assert(m); | |
906 | ||
907 | r = bus_verify_polkit_async( | |
908 | msg, | |
909 | CAP_SYS_ADMIN, | |
910 | "org.freedesktop.import1.pull", | |
403ed0e5 | 911 | NULL, |
3d7415f4 | 912 | false, |
c529695e | 913 | UID_INVALID, |
3d7415f4 LP |
914 | &m->polkit_registry, |
915 | error); | |
916 | if (r < 0) | |
917 | return r; | |
918 | if (r == 0) | |
919 | return 1; /* Will call us back */ | |
920 | ||
921 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
922 | if (r < 0) | |
923 | return r; | |
924 | ||
925 | if (!http_url_is_valid(remote)) | |
926 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "URL %s is invalid", remote); | |
927 | ||
928 | if (isempty(local)) | |
929 | local = NULL; | |
930 | else if (!machine_name_is_valid(local)) | |
931 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
932 | ||
933 | if (isempty(verify)) | |
934 | v = IMPORT_VERIFY_SIGNATURE; | |
935 | else | |
936 | v = import_verify_from_string(verify); | |
937 | if (v < 0) | |
938 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
939 | ||
5f7ecd61 | 940 | r = setup_machine_directory(error); |
ce06fdfb LP |
941 | if (r < 0) |
942 | return r; | |
943 | ||
b6e676ce | 944 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; |
3d7415f4 | 945 | |
b43d75c3 | 946 | if (manager_find(m, type, remote)) |
3d7415f4 LP |
947 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); |
948 | ||
949 | r = transfer_new(m, &t); | |
950 | if (r < 0) | |
951 | return r; | |
952 | ||
953 | t->type = type; | |
954 | t->verify = v; | |
955 | t->force_local = force; | |
956 | ||
957 | t->remote = strdup(remote); | |
958 | if (!t->remote) | |
959 | return -ENOMEM; | |
960 | ||
b6e676ce LP |
961 | if (local) { |
962 | t->local = strdup(local); | |
963 | if (!t->local) | |
964 | return -ENOMEM; | |
965 | } | |
3d7415f4 LP |
966 | |
967 | r = transfer_start(t); | |
968 | if (r < 0) | |
969 | return r; | |
970 | ||
971 | object = t->object_path; | |
972 | id = t->id; | |
973 | t = NULL; | |
974 | ||
975 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
976 | } | |
977 | ||
19070062 | 978 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
4afd3348 | 979 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
3d7415f4 LP |
980 | Manager *m = userdata; |
981 | Transfer *t; | |
982 | Iterator i; | |
983 | int r; | |
984 | ||
3d7415f4 LP |
985 | assert(msg); |
986 | assert(m); | |
987 | ||
988 | r = sd_bus_message_new_method_return(msg, &reply); | |
989 | if (r < 0) | |
990 | return r; | |
991 | ||
7079cfef | 992 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
993 | if (r < 0) |
994 | return r; | |
995 | ||
996 | HASHMAP_FOREACH(t, m->transfers, i) { | |
997 | ||
998 | r = sd_bus_message_append( | |
999 | reply, | |
7079cfef | 1000 | "(usssdo)", |
3d7415f4 LP |
1001 | t->id, |
1002 | transfer_type_to_string(t->type), | |
1003 | t->remote, | |
1004 | t->local, | |
1d7579c4 | 1005 | transfer_percent_as_double(t), |
3d7415f4 LP |
1006 | t->object_path); |
1007 | if (r < 0) | |
1008 | return r; | |
1009 | } | |
1010 | ||
1011 | r = sd_bus_message_close_container(reply); | |
1012 | if (r < 0) | |
1013 | return r; | |
1014 | ||
9030ca46 | 1015 | return sd_bus_send(NULL, reply, NULL); |
3d7415f4 LP |
1016 | } |
1017 | ||
19070062 | 1018 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1019 | Transfer *t = userdata; |
1020 | int r; | |
1021 | ||
3d7415f4 LP |
1022 | assert(msg); |
1023 | assert(t); | |
1024 | ||
1025 | r = bus_verify_polkit_async( | |
1026 | msg, | |
1027 | CAP_SYS_ADMIN, | |
1028 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1029 | NULL, |
3d7415f4 | 1030 | false, |
c529695e | 1031 | UID_INVALID, |
3d7415f4 LP |
1032 | &t->manager->polkit_registry, |
1033 | error); | |
1034 | if (r < 0) | |
1035 | return r; | |
1036 | if (r == 0) | |
1037 | return 1; /* Will call us back */ | |
1038 | ||
1039 | r = transfer_cancel(t); | |
1040 | if (r < 0) | |
1041 | return r; | |
1042 | ||
1043 | return sd_bus_reply_method_return(msg, NULL); | |
1044 | } | |
1045 | ||
19070062 | 1046 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1047 | Manager *m = userdata; |
1048 | Transfer *t; | |
1049 | uint32_t id; | |
1050 | int r; | |
1051 | ||
3d7415f4 LP |
1052 | assert(msg); |
1053 | assert(m); | |
1054 | ||
1055 | r = bus_verify_polkit_async( | |
1056 | msg, | |
1057 | CAP_SYS_ADMIN, | |
1058 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1059 | NULL, |
3d7415f4 | 1060 | false, |
c529695e | 1061 | UID_INVALID, |
3d7415f4 LP |
1062 | &m->polkit_registry, |
1063 | error); | |
1064 | if (r < 0) | |
1065 | return r; | |
1066 | if (r == 0) | |
1067 | return 1; /* Will call us back */ | |
1068 | ||
1069 | r = sd_bus_message_read(msg, "u", &id); | |
1070 | if (r < 0) | |
1071 | return r; | |
1072 | if (id <= 0) | |
1073 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); | |
1074 | ||
1075 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1076 | if (!t) | |
09d46cfd | 1077 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1078 | |
1079 | r = transfer_cancel(t); | |
1080 | if (r < 0) | |
1081 | return r; | |
1082 | ||
1083 | return sd_bus_reply_method_return(msg, NULL); | |
1084 | } | |
1085 | ||
7079cfef LP |
1086 | static int property_get_progress( |
1087 | sd_bus *bus, | |
1088 | const char *path, | |
1089 | const char *interface, | |
1090 | const char *property, | |
1091 | sd_bus_message *reply, | |
1092 | void *userdata, | |
1093 | sd_bus_error *error) { | |
1094 | ||
1095 | Transfer *t = userdata; | |
1096 | ||
1097 | assert(bus); | |
1098 | assert(reply); | |
1099 | assert(t); | |
1100 | ||
1d7579c4 | 1101 | return sd_bus_message_append(reply, "d", transfer_percent_as_double(t)); |
7079cfef LP |
1102 | } |
1103 | ||
3d7415f4 LP |
1104 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1105 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1106 | ||
1107 | static const sd_bus_vtable transfer_vtable[] = { | |
1108 | SD_BUS_VTABLE_START(0), | |
1109 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
1110 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1111 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1112 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1113 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1114 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
3d7415f4 LP |
1115 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
1116 | SD_BUS_SIGNAL("LogMessage", "us", 0), | |
1117 | SD_BUS_VTABLE_END, | |
1118 | }; | |
1119 | ||
1120 | static const sd_bus_vtable manager_vtable[] = { | |
1121 | SD_BUS_VTABLE_START(0), | |
b6e676ce LP |
1122 | SD_BUS_METHOD("ImportTar", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1123 | SD_BUS_METHOD("ImportRaw", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1d7579c4 | 1124 | SD_BUS_METHOD("ImportFileSystem", "hsbb", "uo", method_import_fs, SD_BUS_VTABLE_UNPRIVILEGED), |
587fec42 LP |
1125 | SD_BUS_METHOD("ExportTar", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1126 | SD_BUS_METHOD("ExportRaw", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
3d7415f4 LP |
1127 | SD_BUS_METHOD("PullTar", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1128 | SD_BUS_METHOD("PullRaw", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
7079cfef | 1129 | SD_BUS_METHOD("ListTransfers", NULL, "a(usssdo)", method_list_transfers, SD_BUS_VTABLE_UNPRIVILEGED), |
3d7415f4 LP |
1130 | SD_BUS_METHOD("CancelTransfer", "u", NULL, method_cancel_transfer, SD_BUS_VTABLE_UNPRIVILEGED), |
1131 | SD_BUS_SIGNAL("TransferNew", "uo", 0), | |
1132 | SD_BUS_SIGNAL("TransferRemoved", "uos", 0), | |
1133 | SD_BUS_VTABLE_END, | |
1134 | }; | |
1135 | ||
1136 | static int transfer_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
1137 | Manager *m = userdata; | |
1138 | Transfer *t; | |
1139 | const char *p; | |
1140 | uint32_t id; | |
1141 | int r; | |
1142 | ||
1143 | assert(bus); | |
1144 | assert(path); | |
1145 | assert(interface); | |
1146 | assert(found); | |
1147 | assert(m); | |
1148 | ||
1149 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1150 | if (!p) | |
1151 | return 0; | |
1152 | ||
1153 | r = safe_atou32(p, &id); | |
1154 | if (r < 0 || id == 0) | |
1155 | return 0; | |
1156 | ||
1157 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1158 | if (!t) | |
1159 | return 0; | |
1160 | ||
1161 | *found = t; | |
1162 | return 1; | |
1163 | } | |
1164 | ||
1165 | static int transfer_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
1166 | _cleanup_strv_free_ char **l = NULL; | |
1167 | Manager *m = userdata; | |
1168 | Transfer *t; | |
1169 | unsigned k = 0; | |
1170 | Iterator i; | |
1171 | ||
1172 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1173 | if (!l) | |
1174 | return -ENOMEM; | |
1175 | ||
1176 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1177 | ||
1178 | l[k] = strdup(t->object_path); | |
1179 | if (!l[k]) | |
1180 | return -ENOMEM; | |
1181 | ||
1182 | k++; | |
1183 | } | |
1184 | ||
ae2a15bc | 1185 | *nodes = TAKE_PTR(l); |
3d7415f4 LP |
1186 | |
1187 | return 1; | |
1188 | } | |
1189 | ||
1190 | static int manager_add_bus_objects(Manager *m) { | |
1191 | int r; | |
1192 | ||
1193 | assert(m); | |
1194 | ||
1195 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/import1", "org.freedesktop.import1.Manager", manager_vtable, m); | |
1196 | if (r < 0) | |
1197 | return log_error_errno(r, "Failed to register object: %m"); | |
1198 | ||
1199 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/import1/transfer", "org.freedesktop.import1.Transfer", transfer_vtable, transfer_object_find, m); | |
1200 | if (r < 0) | |
1201 | return log_error_errno(r, "Failed to register object: %m"); | |
1202 | ||
1203 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/import1/transfer", transfer_node_enumerator, m); | |
1204 | if (r < 0) | |
1205 | return log_error_errno(r, "Failed to add transfer enumerator: %m"); | |
1206 | ||
0c0b9306 | 1207 | r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.import1", 0, NULL, NULL); |
3d7415f4 | 1208 | if (r < 0) |
0c0b9306 | 1209 | return log_error_errno(r, "Failed to request name: %m"); |
3d7415f4 LP |
1210 | |
1211 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1212 | if (r < 0) | |
1213 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1214 | ||
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | static bool manager_check_idle(void *userdata) { | |
1219 | Manager *m = userdata; | |
1220 | ||
1221 | return hashmap_isempty(m->transfers); | |
1222 | } | |
1223 | ||
1224 | static int manager_run(Manager *m) { | |
1225 | assert(m); | |
1226 | ||
1227 | return bus_event_loop_with_idle( | |
1228 | m->event, | |
1229 | m->bus, | |
1230 | "org.freedesktop.import1", | |
1231 | DEFAULT_EXIT_USEC, | |
1232 | manager_check_idle, | |
1233 | m); | |
1234 | } | |
1235 | ||
5272ae42 | 1236 | static int run(int argc, char *argv[]) { |
3d7415f4 LP |
1237 | _cleanup_(manager_unrefp) Manager *m = NULL; |
1238 | int r; | |
1239 | ||
6bf3c61c | 1240 | log_setup_service(); |
3d7415f4 LP |
1241 | |
1242 | umask(0022); | |
1243 | ||
1244 | if (argc != 1) { | |
1245 | log_error("This program takes no arguments."); | |
5272ae42 | 1246 | return -EINVAL; |
3d7415f4 LP |
1247 | } |
1248 | ||
72c0a2c2 | 1249 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); |
3d7415f4 LP |
1250 | |
1251 | r = manager_new(&m); | |
5272ae42 ZJS |
1252 | if (r < 0) |
1253 | return log_error_errno(r, "Failed to allocate manager object: %m"); | |
3d7415f4 LP |
1254 | |
1255 | r = manager_add_bus_objects(m); | |
1256 | if (r < 0) | |
5272ae42 | 1257 | return r; |
3d7415f4 LP |
1258 | |
1259 | r = manager_run(m); | |
5272ae42 ZJS |
1260 | if (r < 0) |
1261 | return log_error_errno(r, "Failed to run event loop: %m"); | |
3d7415f4 | 1262 | |
5272ae42 | 1263 | return 0; |
3d7415f4 | 1264 | } |
5272ae42 ZJS |
1265 | |
1266 | DEFINE_MAIN_FUNCTION(run); |