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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" | |
6bedfcbb | 35 | #include "parse-util.h" |
113b3fc1 | 36 | #include "path-util.h" |
0b452006 | 37 | #include "process-util.h" |
24882e06 | 38 | #include "signal-util.h" |
3ffd4af2 LP |
39 | #include "socket-util.h" |
40 | #include "strv.h" | |
41 | #include "util.h" | |
3d7415f4 LP |
42 | |
43 | typedef struct Transfer Transfer; | |
44 | typedef struct Manager Manager; | |
45 | ||
46 | typedef enum TransferType { | |
b6e676ce LP |
47 | TRANSFER_IMPORT_TAR, |
48 | TRANSFER_IMPORT_RAW, | |
587fec42 LP |
49 | TRANSFER_EXPORT_TAR, |
50 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
51 | TRANSFER_PULL_TAR, |
52 | TRANSFER_PULL_RAW, | |
53 | TRANSFER_PULL_DKR, | |
3d7415f4 LP |
54 | _TRANSFER_TYPE_MAX, |
55 | _TRANSFER_TYPE_INVALID = -1, | |
56 | } TransferType; | |
57 | ||
58 | struct Transfer { | |
59 | Manager *manager; | |
60 | ||
61 | uint32_t id; | |
62 | char *object_path; | |
63 | ||
64 | TransferType type; | |
65 | ImportVerify verify; | |
66 | ||
67 | char *remote; | |
68 | char *local; | |
69 | bool force_local; | |
b6e676ce | 70 | bool read_only; |
3d7415f4 LP |
71 | |
72 | char *dkr_index_url; | |
587fec42 | 73 | char *format; |
3d7415f4 LP |
74 | |
75 | pid_t pid; | |
76 | ||
77 | int log_fd; | |
78 | ||
79 | char log_message[LINE_MAX]; | |
80 | size_t log_message_size; | |
81 | ||
82 | sd_event_source *pid_event_source; | |
83 | sd_event_source *log_event_source; | |
84 | ||
85 | unsigned n_canceled; | |
7079cfef | 86 | unsigned progress_percent; |
b6e676ce LP |
87 | |
88 | int stdin_fd; | |
587fec42 | 89 | int stdout_fd; |
3d7415f4 LP |
90 | }; |
91 | ||
92 | struct Manager { | |
93 | sd_event *event; | |
94 | sd_bus *bus; | |
95 | ||
96 | uint32_t current_transfer_id; | |
97 | Hashmap *transfers; | |
98 | ||
99 | Hashmap *polkit_registry; | |
7079cfef LP |
100 | |
101 | int notify_fd; | |
102 | ||
103 | sd_event_source *notify_event_source; | |
3d7415f4 LP |
104 | }; |
105 | ||
106 | #define TRANSFERS_MAX 64 | |
107 | ||
108 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
109 | [TRANSFER_IMPORT_TAR] = "import-tar", |
110 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
587fec42 LP |
111 | [TRANSFER_EXPORT_TAR] = "export-tar", |
112 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b6e676ce LP |
113 | [TRANSFER_PULL_TAR] = "pull-tar", |
114 | [TRANSFER_PULL_RAW] = "pull-raw", | |
115 | [TRANSFER_PULL_DKR] = "pull-dkr", | |
3d7415f4 LP |
116 | }; |
117 | ||
b9a5f858 | 118 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
119 | |
120 | static Transfer *transfer_unref(Transfer *t) { | |
121 | if (!t) | |
122 | return NULL; | |
123 | ||
124 | if (t->manager) | |
125 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
126 | ||
127 | sd_event_source_unref(t->pid_event_source); | |
128 | sd_event_source_unref(t->log_event_source); | |
129 | ||
130 | free(t->remote); | |
131 | free(t->local); | |
132 | free(t->dkr_index_url); | |
587fec42 | 133 | free(t->format); |
3d7415f4 LP |
134 | free(t->object_path); |
135 | ||
136 | if (t->pid > 0) { | |
137 | (void) kill_and_sigcont(t->pid, SIGKILL); | |
138 | (void) wait_for_terminate(t->pid, NULL); | |
139 | } | |
140 | ||
141 | safe_close(t->log_fd); | |
b6e676ce | 142 | safe_close(t->stdin_fd); |
587fec42 | 143 | safe_close(t->stdout_fd); |
3d7415f4 LP |
144 | |
145 | free(t); | |
146 | return NULL; | |
147 | } | |
148 | ||
149 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
150 | ||
151 | static int transfer_new(Manager *m, Transfer **ret) { | |
152 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
153 | uint32_t id; | |
154 | int r; | |
155 | ||
156 | assert(m); | |
157 | assert(ret); | |
158 | ||
159 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
160 | return -E2BIG; | |
161 | ||
162 | r = hashmap_ensure_allocated(&m->transfers, &trivial_hash_ops); | |
163 | if (r < 0) | |
164 | return r; | |
165 | ||
166 | t = new0(Transfer, 1); | |
167 | if (!t) | |
168 | return -ENOMEM; | |
169 | ||
170 | t->type = _TRANSFER_TYPE_INVALID; | |
171 | t->log_fd = -1; | |
b6e676ce | 172 | t->stdin_fd = -1; |
3be78ab2 | 173 | t->stdout_fd = -1; |
b6e676ce | 174 | t->verify = _IMPORT_VERIFY_INVALID; |
3d7415f4 LP |
175 | |
176 | id = m->current_transfer_id + 1; | |
177 | ||
178 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
179 | return -ENOMEM; | |
180 | ||
181 | r = hashmap_put(m->transfers, UINT32_TO_PTR(id), t); | |
182 | if (r < 0) | |
183 | return r; | |
184 | ||
185 | m->current_transfer_id = id; | |
186 | ||
187 | t->manager = m; | |
188 | t->id = id; | |
189 | ||
190 | *ret = t; | |
191 | t = NULL; | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
196 | static void transfer_send_log_line(Transfer *t, const char *line) { | |
197 | int r, priority = LOG_INFO; | |
198 | ||
199 | assert(t); | |
200 | assert(line); | |
201 | ||
202 | syslog_parse_priority(&line, &priority, true); | |
203 | ||
09d46cfd | 204 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
205 | |
206 | r = sd_bus_emit_signal( | |
207 | t->manager->bus, | |
208 | t->object_path, | |
209 | "org.freedesktop.import1.Transfer", | |
210 | "LogMessage", | |
211 | "us", | |
212 | priority, | |
213 | line); | |
214 | if (r < 0) | |
215 | log_error_errno(r, "Cannot emit message: %m"); | |
216 | } | |
217 | ||
218 | static void transfer_send_logs(Transfer *t, bool flush) { | |
219 | assert(t); | |
220 | ||
221 | /* Try to send out all log messages, if we can. But if we | |
222 | * can't we remove the messages from the buffer, but don't | |
223 | * fail */ | |
224 | ||
225 | while (t->log_message_size > 0) { | |
226 | _cleanup_free_ char *n = NULL; | |
227 | char *e; | |
228 | ||
229 | if (t->log_message_size >= sizeof(t->log_message)) | |
230 | e = t->log_message + sizeof(t->log_message); | |
231 | else { | |
232 | char *a, *b; | |
233 | ||
234 | a = memchr(t->log_message, 0, t->log_message_size); | |
235 | b = memchr(t->log_message, '\n', t->log_message_size); | |
236 | ||
237 | if (a && b) | |
238 | e = a < b ? a : b; | |
239 | else if (a) | |
240 | e = a; | |
241 | else | |
242 | e = b; | |
243 | } | |
244 | ||
245 | if (!e) { | |
246 | if (!flush) | |
247 | return; | |
248 | ||
249 | e = t->log_message + t->log_message_size; | |
250 | } | |
251 | ||
252 | n = strndup(t->log_message, e - t->log_message); | |
253 | ||
254 | /* Skip over NUL and newlines */ | |
be3ce301 | 255 | while ((e < t->log_message + t->log_message_size) && (*e == 0 || *e == '\n')) |
3d7415f4 LP |
256 | e++; |
257 | ||
258 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
259 | t->log_message_size -= e - t->log_message; | |
260 | ||
261 | if (!n) { | |
262 | log_oom(); | |
263 | continue; | |
264 | } | |
265 | ||
266 | if (isempty(n)) | |
267 | continue; | |
268 | ||
269 | transfer_send_log_line(t, n); | |
270 | } | |
271 | } | |
272 | ||
273 | static int transfer_finalize(Transfer *t, bool success) { | |
274 | int r; | |
275 | ||
276 | assert(t); | |
277 | ||
278 | transfer_send_logs(t, true); | |
279 | ||
280 | r = sd_bus_emit_signal( | |
281 | t->manager->bus, | |
282 | "/org/freedesktop/import1", | |
283 | "org.freedesktop.import1.Manager", | |
284 | "TransferRemoved", | |
285 | "uos", | |
286 | t->id, | |
287 | t->object_path, | |
288 | success ? "done" : | |
289 | t->n_canceled > 0 ? "canceled" : "failed"); | |
290 | ||
291 | if (r < 0) | |
292 | log_error_errno(r, "Cannot emit message: %m"); | |
293 | ||
294 | transfer_unref(t); | |
295 | return 0; | |
296 | } | |
297 | ||
298 | static int transfer_cancel(Transfer *t) { | |
299 | int r; | |
300 | ||
301 | assert(t); | |
302 | ||
303 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
304 | if (r < 0) | |
305 | return r; | |
306 | ||
307 | t->n_canceled++; | |
308 | return 0; | |
309 | } | |
310 | ||
311 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
312 | Transfer *t = userdata; | |
313 | bool success = false; | |
314 | ||
315 | assert(s); | |
316 | assert(t); | |
317 | ||
318 | if (si->si_code == CLD_EXITED) { | |
319 | if (si->si_status != 0) | |
320 | log_error("Import process failed with exit code %i.", si->si_status); | |
321 | else { | |
322 | log_debug("Import process succeeded."); | |
323 | success = true; | |
324 | } | |
325 | ||
326 | } else if (si->si_code == CLD_KILLED || | |
327 | si->si_code == CLD_DUMPED) | |
328 | ||
329 | log_error("Import process terminated by signal %s.", signal_to_string(si->si_status)); | |
330 | else | |
331 | log_error("Import process failed due to unknown reason."); | |
332 | ||
333 | t->pid = 0; | |
334 | ||
335 | return transfer_finalize(t, success); | |
336 | } | |
337 | ||
338 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
339 | Transfer *t = userdata; | |
340 | ssize_t l; | |
341 | ||
342 | assert(s); | |
343 | assert(t); | |
344 | ||
345 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
346 | if (l <= 0) { | |
347 | /* EOF/read error. We just close the pipe here, and | |
348 | * close the watch, waiting for the SIGCHLD to arrive, | |
349 | * before we do anything else. */ | |
350 | ||
351 | if (l < 0) | |
352 | log_error_errno(errno, "Failed to read log message: %m"); | |
353 | ||
354 | t->log_event_source = sd_event_source_unref(t->log_event_source); | |
355 | return 0; | |
356 | } | |
357 | ||
358 | t->log_message_size += l; | |
359 | ||
360 | transfer_send_logs(t, false); | |
361 | ||
362 | return 0; | |
363 | } | |
364 | ||
365 | static int transfer_start(Transfer *t) { | |
366 | _cleanup_close_pair_ int pipefd[2] = { -1, -1 }; | |
367 | int r; | |
368 | ||
369 | assert(t); | |
370 | assert(t->pid <= 0); | |
371 | ||
372 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
373 | return -errno; | |
374 | ||
375 | t->pid = fork(); | |
376 | if (t->pid < 0) | |
377 | return -errno; | |
378 | if (t->pid == 0) { | |
379 | const char *cmd[] = { | |
587fec42 | 380 | NULL, /* systemd-import, systemd-export or systemd-pull */ |
b6e676ce LP |
381 | NULL, /* tar, raw, dkr */ |
382 | NULL, /* --verify= */ | |
3d7415f4 LP |
383 | NULL, /* verify argument */ |
384 | NULL, /* maybe --force */ | |
b6e676ce | 385 | NULL, /* maybe --read-only */ |
3d7415f4 | 386 | NULL, /* maybe --dkr-index-url */ |
587fec42 LP |
387 | NULL, /* if so: the actual URL */ |
388 | NULL, /* maybe --format= */ | |
389 | NULL, /* if so: the actual format */ | |
3d7415f4 LP |
390 | NULL, /* remote */ |
391 | NULL, /* local */ | |
392 | NULL | |
393 | }; | |
b6e676ce | 394 | unsigned k = 0; |
3d7415f4 LP |
395 | |
396 | /* Child */ | |
397 | ||
ce30c8dc LP |
398 | (void) reset_all_signal_handlers(); |
399 | (void) reset_signal_mask(); | |
3d7415f4 LP |
400 | assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); |
401 | ||
402 | pipefd[0] = safe_close(pipefd[0]); | |
403 | ||
587fec42 | 404 | if (dup2(pipefd[1], STDERR_FILENO) != STDERR_FILENO) { |
3d7415f4 LP |
405 | log_error_errno(errno, "Failed to dup2() fd: %m"); |
406 | _exit(EXIT_FAILURE); | |
407 | } | |
408 | ||
587fec42 LP |
409 | if (t->stdout_fd >= 0) { |
410 | if (dup2(t->stdout_fd, STDOUT_FILENO) != STDOUT_FILENO) { | |
411 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
412 | _exit(EXIT_FAILURE); | |
413 | } | |
414 | ||
415 | if (t->stdout_fd != STDOUT_FILENO) | |
416 | safe_close(t->stdout_fd); | |
417 | } else { | |
418 | if (dup2(pipefd[1], STDOUT_FILENO) != STDOUT_FILENO) { | |
419 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
420 | _exit(EXIT_FAILURE); | |
421 | } | |
3d7415f4 LP |
422 | } |
423 | ||
424 | if (pipefd[1] != STDOUT_FILENO && pipefd[1] != STDERR_FILENO) | |
425 | pipefd[1] = safe_close(pipefd[1]); | |
426 | ||
b6e676ce LP |
427 | if (t->stdin_fd >= 0) { |
428 | if (dup2(t->stdin_fd, STDIN_FILENO) != STDIN_FILENO) { | |
429 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
430 | _exit(EXIT_FAILURE); | |
431 | } | |
432 | ||
433 | if (t->stdin_fd != STDIN_FILENO) | |
434 | safe_close(t->stdin_fd); | |
435 | } else { | |
436 | int null_fd; | |
437 | ||
438 | null_fd = open("/dev/null", O_RDONLY|O_NOCTTY); | |
439 | if (null_fd < 0) { | |
440 | log_error_errno(errno, "Failed to open /dev/null: %m"); | |
441 | _exit(EXIT_FAILURE); | |
442 | } | |
443 | ||
444 | if (dup2(null_fd, STDIN_FILENO) != STDIN_FILENO) { | |
445 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
446 | _exit(EXIT_FAILURE); | |
447 | } | |
448 | ||
449 | if (null_fd != STDIN_FILENO) | |
450 | safe_close(null_fd); | |
3d7415f4 LP |
451 | } |
452 | ||
3d7415f4 LP |
453 | fd_cloexec(STDIN_FILENO, false); |
454 | fd_cloexec(STDOUT_FILENO, false); | |
455 | fd_cloexec(STDERR_FILENO, false); | |
456 | ||
7079cfef LP |
457 | setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1); |
458 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1); | |
3d7415f4 | 459 | |
b6e676ce LP |
460 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_IMPORT_RAW)) |
461 | cmd[k++] = SYSTEMD_IMPORT_PATH; | |
587fec42 LP |
462 | else if (IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) |
463 | cmd[k++] = SYSTEMD_EXPORT_PATH; | |
b6e676ce LP |
464 | else |
465 | cmd[k++] = SYSTEMD_PULL_PATH; | |
466 | ||
587fec42 | 467 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_EXPORT_TAR, TRANSFER_PULL_TAR)) |
b6e676ce | 468 | cmd[k++] = "tar"; |
587fec42 | 469 | else if (IN_SET(t->type, TRANSFER_IMPORT_RAW, TRANSFER_EXPORT_RAW, TRANSFER_PULL_RAW)) |
b6e676ce LP |
470 | cmd[k++] = "raw"; |
471 | else | |
472 | cmd[k++] = "dkr"; | |
473 | ||
474 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
475 | cmd[k++] = "--verify"; | |
476 | cmd[k++] = import_verify_to_string(t->verify); | |
477 | } | |
478 | ||
3d7415f4 LP |
479 | if (t->force_local) |
480 | cmd[k++] = "--force"; | |
b6e676ce LP |
481 | if (t->read_only) |
482 | cmd[k++] = "--read-only"; | |
3d7415f4 LP |
483 | |
484 | if (t->dkr_index_url) { | |
485 | cmd[k++] = "--dkr-index-url"; | |
486 | cmd[k++] = t->dkr_index_url; | |
487 | } | |
488 | ||
587fec42 LP |
489 | if (t->format) { |
490 | cmd[k++] = "--format"; | |
491 | cmd[k++] = t->format; | |
492 | } | |
493 | ||
494 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
495 | if (t->remote) | |
496 | cmd[k++] = t->remote; | |
497 | else | |
498 | cmd[k++] = "-"; | |
499 | } | |
b6e676ce | 500 | |
3d7415f4 LP |
501 | if (t->local) |
502 | cmd[k++] = t->local; | |
503 | cmd[k] = NULL; | |
504 | ||
b6e676ce LP |
505 | execv(cmd[0], (char * const *) cmd); |
506 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
507 | _exit(EXIT_FAILURE); |
508 | } | |
509 | ||
510 | pipefd[1] = safe_close(pipefd[1]); | |
511 | t->log_fd = pipefd[0]; | |
512 | pipefd[0] = -1; | |
513 | ||
b6e676ce LP |
514 | t->stdin_fd = safe_close(t->stdin_fd); |
515 | ||
3d7415f4 LP |
516 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, t->pid, WEXITED, transfer_on_pid, t); |
517 | if (r < 0) | |
518 | return r; | |
519 | ||
520 | r = sd_event_add_io(t->manager->event, &t->log_event_source, t->log_fd, EPOLLIN, transfer_on_log, t); | |
521 | if (r < 0) | |
522 | return r; | |
523 | ||
524 | /* Make sure always process logging before SIGCHLD */ | |
525 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
526 | if (r < 0) | |
527 | return r; | |
528 | ||
529 | r = sd_bus_emit_signal( | |
530 | t->manager->bus, | |
531 | "/org/freedesktop/import1", | |
532 | "org.freedesktop.import1.Manager", | |
533 | "TransferNew", | |
534 | "uo", | |
535 | t->id, | |
536 | t->object_path); | |
537 | if (r < 0) | |
538 | return r; | |
539 | ||
540 | return 0; | |
541 | } | |
542 | ||
543 | static Manager *manager_unref(Manager *m) { | |
544 | Transfer *t; | |
545 | ||
546 | if (!m) | |
547 | return NULL; | |
548 | ||
7079cfef LP |
549 | sd_event_source_unref(m->notify_event_source); |
550 | safe_close(m->notify_fd); | |
551 | ||
3d7415f4 LP |
552 | while ((t = hashmap_first(m->transfers))) |
553 | transfer_unref(t); | |
554 | ||
555 | hashmap_free(m->transfers); | |
556 | ||
557 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
558 | ||
03976f7b | 559 | m->bus = sd_bus_flush_close_unref(m->bus); |
3d7415f4 LP |
560 | sd_event_unref(m->event); |
561 | ||
562 | free(m); | |
563 | return NULL; | |
564 | } | |
565 | ||
566 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
567 | ||
7079cfef LP |
568 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
569 | ||
570 | char buf[NOTIFY_BUFFER_MAX+1]; | |
571 | struct iovec iovec = { | |
572 | .iov_base = buf, | |
573 | .iov_len = sizeof(buf)-1, | |
574 | }; | |
575 | union { | |
576 | struct cmsghdr cmsghdr; | |
577 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
578 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
579 | } control = {}; | |
580 | struct msghdr msghdr = { | |
581 | .msg_iov = &iovec, | |
582 | .msg_iovlen = 1, | |
583 | .msg_control = &control, | |
584 | .msg_controllen = sizeof(control), | |
585 | }; | |
586 | struct ucred *ucred = NULL; | |
587 | Manager *m = userdata; | |
588 | struct cmsghdr *cmsg; | |
589 | unsigned percent; | |
590 | char *p, *e; | |
591 | Transfer *t; | |
592 | Iterator i; | |
593 | ssize_t n; | |
594 | int r; | |
595 | ||
596 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); | |
597 | if (n < 0) { | |
598 | if (errno == EAGAIN || errno == EINTR) | |
599 | return 0; | |
600 | ||
601 | return -errno; | |
602 | } | |
603 | ||
1c8da044 LP |
604 | cmsg_close_all(&msghdr); |
605 | ||
3ee897d6 LP |
606 | CMSG_FOREACH(cmsg, &msghdr) |
607 | if (cmsg->cmsg_level == SOL_SOCKET && | |
608 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
609 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) | |
7079cfef | 610 | ucred = (struct ucred*) CMSG_DATA(cmsg); |
7079cfef LP |
611 | |
612 | if (msghdr.msg_flags & MSG_TRUNC) { | |
613 | log_warning("Got overly long notification datagram, ignoring."); | |
614 | return 0; | |
615 | } | |
616 | ||
617 | if (!ucred || ucred->pid <= 0) { | |
618 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
619 | return 0; | |
620 | } | |
621 | ||
622 | HASHMAP_FOREACH(t, m->transfers, i) | |
623 | if (ucred->pid == t->pid) | |
624 | break; | |
625 | ||
626 | if (!t) { | |
627 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
628 | return 0; | |
629 | } | |
630 | ||
631 | buf[n] = 0; | |
632 | ||
633 | p = startswith(buf, "X_IMPORT_PROGRESS="); | |
634 | if (!p) { | |
635 | p = strstr(buf, "\nX_IMPORT_PROGRESS="); | |
636 | if (!p) | |
637 | return 0; | |
638 | ||
639 | p += 19; | |
640 | } | |
641 | ||
642 | e = strchrnul(p, '\n'); | |
643 | *e = 0; | |
644 | ||
645 | r = safe_atou(p, &percent); | |
646 | if (r < 0 || percent > 100) { | |
647 | log_warning("Got invalid percent value, ignoring."); | |
648 | return 0; | |
649 | } | |
650 | ||
651 | t->progress_percent = percent; | |
652 | ||
653 | log_debug("Got percentage from client: %u%%", percent); | |
654 | return 0; | |
655 | } | |
656 | ||
3d7415f4 LP |
657 | static int manager_new(Manager **ret) { |
658 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
659 | static const union sockaddr_union sa = { |
660 | .un.sun_family = AF_UNIX, | |
661 | .un.sun_path = "/run/systemd/import/notify", | |
662 | }; | |
663 | static const int one = 1; | |
3d7415f4 LP |
664 | int r; |
665 | ||
666 | assert(ret); | |
667 | ||
668 | m = new0(Manager, 1); | |
669 | if (!m) | |
670 | return -ENOMEM; | |
671 | ||
672 | r = sd_event_default(&m->event); | |
673 | if (r < 0) | |
674 | return r; | |
675 | ||
676 | sd_event_set_watchdog(m->event, true); | |
677 | ||
678 | r = sd_bus_default_system(&m->bus); | |
679 | if (r < 0) | |
680 | return r; | |
681 | ||
7079cfef LP |
682 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
683 | if (m->notify_fd < 0) | |
684 | return -errno; | |
685 | ||
686 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
687 | (void) unlink(sa.un.sun_path); | |
688 | ||
689 | if (bind(m->notify_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0) | |
690 | return -errno; | |
691 | ||
692 | if (setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) | |
693 | return -errno; | |
694 | ||
695 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_on_notify, m); | |
696 | if (r < 0) | |
697 | return r; | |
698 | ||
3d7415f4 LP |
699 | *ret = m; |
700 | m = NULL; | |
701 | ||
702 | return 0; | |
703 | } | |
704 | ||
705 | static Transfer *manager_find(Manager *m, TransferType type, const char *dkr_index_url, const char *remote) { | |
706 | Transfer *t; | |
707 | Iterator i; | |
708 | ||
709 | assert(m); | |
710 | assert(type >= 0); | |
711 | assert(type < _TRANSFER_TYPE_MAX); | |
712 | ||
713 | HASHMAP_FOREACH(t, m->transfers, i) { | |
714 | ||
715 | if (t->type == type && | |
716 | streq_ptr(t->remote, remote) && | |
717 | streq_ptr(t->dkr_index_url, dkr_index_url)) | |
718 | return t; | |
719 | } | |
720 | ||
721 | return NULL; | |
722 | } | |
723 | ||
19070062 | 724 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
b6e676ce LP |
725 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
726 | int fd, force, read_only, r; | |
727 | const char *local, *object; | |
728 | Manager *m = userdata; | |
729 | TransferType type; | |
730 | uint32_t id; | |
731 | ||
19070062 LP |
732 | assert(msg); |
733 | assert(m); | |
734 | ||
b6e676ce LP |
735 | r = bus_verify_polkit_async( |
736 | msg, | |
737 | CAP_SYS_ADMIN, | |
738 | "org.freedesktop.import1.import", | |
403ed0e5 | 739 | NULL, |
b6e676ce LP |
740 | false, |
741 | UID_INVALID, | |
742 | &m->polkit_registry, | |
743 | error); | |
744 | if (r < 0) | |
745 | return r; | |
746 | if (r == 0) | |
747 | return 1; /* Will call us back */ | |
748 | ||
749 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
750 | if (r < 0) | |
751 | return r; | |
752 | ||
753 | if (!machine_name_is_valid(local)) | |
754 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
755 | ||
756 | r = setup_machine_directory((uint64_t) -1, error); | |
757 | if (r < 0) | |
758 | return r; | |
759 | ||
760 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
761 | ||
762 | r = transfer_new(m, &t); | |
763 | if (r < 0) | |
764 | return r; | |
765 | ||
766 | t->type = type; | |
767 | t->force_local = force; | |
768 | t->read_only = read_only; | |
769 | ||
770 | t->local = strdup(local); | |
771 | if (!t->local) | |
772 | return -ENOMEM; | |
773 | ||
774 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
775 | if (t->stdin_fd < 0) | |
776 | return -errno; | |
777 | ||
778 | r = transfer_start(t); | |
779 | if (r < 0) | |
780 | return r; | |
781 | ||
782 | object = t->object_path; | |
783 | id = t->id; | |
784 | t = NULL; | |
785 | ||
786 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
787 | } | |
788 | ||
19070062 | 789 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
587fec42 LP |
790 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
791 | int fd, r; | |
792 | const char *local, *object, *format; | |
793 | Manager *m = userdata; | |
794 | TransferType type; | |
795 | uint32_t id; | |
796 | ||
19070062 LP |
797 | assert(msg); |
798 | assert(m); | |
799 | ||
587fec42 LP |
800 | r = bus_verify_polkit_async( |
801 | msg, | |
802 | CAP_SYS_ADMIN, | |
803 | "org.freedesktop.import1.export", | |
403ed0e5 | 804 | NULL, |
587fec42 LP |
805 | false, |
806 | UID_INVALID, | |
807 | &m->polkit_registry, | |
808 | error); | |
809 | if (r < 0) | |
810 | return r; | |
811 | if (r == 0) | |
812 | return 1; /* Will call us back */ | |
813 | ||
814 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
815 | if (r < 0) | |
816 | return r; | |
817 | ||
818 | if (!machine_name_is_valid(local)) | |
819 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
820 | ||
821 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
822 | ||
823 | r = transfer_new(m, &t); | |
824 | if (r < 0) | |
825 | return r; | |
826 | ||
827 | t->type = type; | |
828 | ||
829 | if (!isempty(format)) { | |
830 | t->format = strdup(format); | |
831 | if (!t->format) | |
832 | return -ENOMEM; | |
833 | } | |
834 | ||
835 | t->local = strdup(local); | |
836 | if (!t->local) | |
837 | return -ENOMEM; | |
838 | ||
839 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
840 | if (t->stdout_fd < 0) | |
841 | return -errno; | |
842 | ||
843 | r = transfer_start(t); | |
844 | if (r < 0) | |
845 | return r; | |
846 | ||
847 | object = t->object_path; | |
848 | id = t->id; | |
849 | t = NULL; | |
850 | ||
851 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
852 | } | |
853 | ||
19070062 | 854 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
855 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
856 | const char *remote, *local, *verify, *object; | |
857 | Manager *m = userdata; | |
858 | ImportVerify v; | |
859 | TransferType type; | |
860 | int force, r; | |
861 | uint32_t id; | |
862 | ||
3d7415f4 LP |
863 | assert(msg); |
864 | assert(m); | |
865 | ||
866 | r = bus_verify_polkit_async( | |
867 | msg, | |
868 | CAP_SYS_ADMIN, | |
869 | "org.freedesktop.import1.pull", | |
403ed0e5 | 870 | NULL, |
3d7415f4 | 871 | false, |
c529695e | 872 | UID_INVALID, |
3d7415f4 LP |
873 | &m->polkit_registry, |
874 | error); | |
875 | if (r < 0) | |
876 | return r; | |
877 | if (r == 0) | |
878 | return 1; /* Will call us back */ | |
879 | ||
880 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
881 | if (r < 0) | |
882 | return r; | |
883 | ||
884 | if (!http_url_is_valid(remote)) | |
885 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "URL %s is invalid", remote); | |
886 | ||
887 | if (isempty(local)) | |
888 | local = NULL; | |
889 | else if (!machine_name_is_valid(local)) | |
890 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
891 | ||
892 | if (isempty(verify)) | |
893 | v = IMPORT_VERIFY_SIGNATURE; | |
894 | else | |
895 | v = import_verify_from_string(verify); | |
896 | if (v < 0) | |
897 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
898 | ||
4cee5eed | 899 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
900 | if (r < 0) |
901 | return r; | |
902 | ||
b6e676ce | 903 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; |
3d7415f4 LP |
904 | |
905 | if (manager_find(m, type, NULL, remote)) | |
906 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); | |
907 | ||
908 | r = transfer_new(m, &t); | |
909 | if (r < 0) | |
910 | return r; | |
911 | ||
912 | t->type = type; | |
913 | t->verify = v; | |
914 | t->force_local = force; | |
915 | ||
916 | t->remote = strdup(remote); | |
917 | if (!t->remote) | |
918 | return -ENOMEM; | |
919 | ||
b6e676ce LP |
920 | if (local) { |
921 | t->local = strdup(local); | |
922 | if (!t->local) | |
923 | return -ENOMEM; | |
924 | } | |
3d7415f4 LP |
925 | |
926 | r = transfer_start(t); | |
927 | if (r < 0) | |
928 | return r; | |
929 | ||
930 | object = t->object_path; | |
931 | id = t->id; | |
932 | t = NULL; | |
933 | ||
934 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
935 | } | |
936 | ||
19070062 | 937 | static int method_pull_dkr(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
938 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
939 | const char *index_url, *remote, *tag, *local, *verify, *object; | |
940 | Manager *m = userdata; | |
941 | ImportVerify v; | |
942 | int force, r; | |
943 | uint32_t id; | |
944 | ||
3d7415f4 LP |
945 | assert(msg); |
946 | assert(m); | |
947 | ||
948 | r = bus_verify_polkit_async( | |
949 | msg, | |
950 | CAP_SYS_ADMIN, | |
951 | "org.freedesktop.import1.pull", | |
403ed0e5 | 952 | NULL, |
3d7415f4 | 953 | false, |
c529695e | 954 | UID_INVALID, |
3d7415f4 LP |
955 | &m->polkit_registry, |
956 | error); | |
957 | if (r < 0) | |
958 | return r; | |
959 | if (r == 0) | |
960 | return 1; /* Will call us back */ | |
961 | ||
962 | r = sd_bus_message_read(msg, "sssssb", &index_url, &remote, &tag, &local, &verify, &force); | |
963 | if (r < 0) | |
964 | return r; | |
965 | ||
966 | if (isempty(index_url)) | |
967 | index_url = DEFAULT_DKR_INDEX_URL; | |
968 | if (!index_url) | |
969 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL must be specified."); | |
970 | if (!http_url_is_valid(index_url)) | |
971 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL %s is invalid", index_url); | |
972 | ||
973 | if (!dkr_name_is_valid(remote)) | |
974 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Remote name %s is not valid", remote); | |
975 | ||
976 | if (isempty(tag)) | |
977 | tag = "latest"; | |
978 | else if (!dkr_tag_is_valid(tag)) | |
979 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Tag %s is not valid", tag); | |
980 | ||
981 | if (isempty(local)) | |
982 | local = NULL; | |
983 | else if (!machine_name_is_valid(local)) | |
984 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
985 | ||
986 | if (isempty(verify)) | |
987 | v = IMPORT_VERIFY_SIGNATURE; | |
988 | else | |
989 | v = import_verify_from_string(verify); | |
990 | if (v < 0) | |
991 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
992 | ||
993 | if (v != IMPORT_VERIFY_NO) | |
994 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "DKR does not support verification."); | |
995 | ||
4cee5eed | 996 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
997 | if (r < 0) |
998 | return r; | |
999 | ||
b6e676ce | 1000 | if (manager_find(m, TRANSFER_PULL_DKR, index_url, remote)) |
3d7415f4 LP |
1001 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); |
1002 | ||
1003 | r = transfer_new(m, &t); | |
1004 | if (r < 0) | |
1005 | return r; | |
1006 | ||
b6e676ce | 1007 | t->type = TRANSFER_PULL_DKR; |
3d7415f4 LP |
1008 | t->verify = v; |
1009 | t->force_local = force; | |
1010 | ||
1011 | t->dkr_index_url = strdup(index_url); | |
1012 | if (!t->dkr_index_url) | |
1013 | return -ENOMEM; | |
1014 | ||
1015 | t->remote = strjoin(remote, ":", tag, NULL); | |
1016 | if (!t->remote) | |
1017 | return -ENOMEM; | |
1018 | ||
b6e676ce LP |
1019 | if (local) { |
1020 | t->local = strdup(local); | |
1021 | if (!t->local) | |
1022 | return -ENOMEM; | |
1023 | } | |
3d7415f4 LP |
1024 | |
1025 | r = transfer_start(t); | |
1026 | if (r < 0) | |
1027 | return r; | |
1028 | ||
1029 | object = t->object_path; | |
1030 | id = t->id; | |
1031 | t = NULL; | |
1032 | ||
1033 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
1034 | } | |
1035 | ||
19070062 | 1036 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1037 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
1038 | Manager *m = userdata; | |
1039 | Transfer *t; | |
1040 | Iterator i; | |
1041 | int r; | |
1042 | ||
3d7415f4 LP |
1043 | assert(msg); |
1044 | assert(m); | |
1045 | ||
1046 | r = sd_bus_message_new_method_return(msg, &reply); | |
1047 | if (r < 0) | |
1048 | return r; | |
1049 | ||
7079cfef | 1050 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
1051 | if (r < 0) |
1052 | return r; | |
1053 | ||
1054 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1055 | ||
1056 | r = sd_bus_message_append( | |
1057 | reply, | |
7079cfef | 1058 | "(usssdo)", |
3d7415f4 LP |
1059 | t->id, |
1060 | transfer_type_to_string(t->type), | |
1061 | t->remote, | |
1062 | t->local, | |
7079cfef | 1063 | (double) t->progress_percent / 100.0, |
3d7415f4 LP |
1064 | t->object_path); |
1065 | if (r < 0) | |
1066 | return r; | |
1067 | } | |
1068 | ||
1069 | r = sd_bus_message_close_container(reply); | |
1070 | if (r < 0) | |
1071 | return r; | |
1072 | ||
9030ca46 | 1073 | return sd_bus_send(NULL, reply, NULL); |
3d7415f4 LP |
1074 | } |
1075 | ||
19070062 | 1076 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1077 | Transfer *t = userdata; |
1078 | int r; | |
1079 | ||
3d7415f4 LP |
1080 | assert(msg); |
1081 | assert(t); | |
1082 | ||
1083 | r = bus_verify_polkit_async( | |
1084 | msg, | |
1085 | CAP_SYS_ADMIN, | |
1086 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1087 | NULL, |
3d7415f4 | 1088 | false, |
c529695e | 1089 | UID_INVALID, |
3d7415f4 LP |
1090 | &t->manager->polkit_registry, |
1091 | error); | |
1092 | if (r < 0) | |
1093 | return r; | |
1094 | if (r == 0) | |
1095 | return 1; /* Will call us back */ | |
1096 | ||
1097 | r = transfer_cancel(t); | |
1098 | if (r < 0) | |
1099 | return r; | |
1100 | ||
1101 | return sd_bus_reply_method_return(msg, NULL); | |
1102 | } | |
1103 | ||
19070062 | 1104 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1105 | Manager *m = userdata; |
1106 | Transfer *t; | |
1107 | uint32_t id; | |
1108 | int r; | |
1109 | ||
3d7415f4 LP |
1110 | assert(msg); |
1111 | assert(m); | |
1112 | ||
1113 | r = bus_verify_polkit_async( | |
1114 | msg, | |
1115 | CAP_SYS_ADMIN, | |
1116 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1117 | NULL, |
3d7415f4 | 1118 | false, |
c529695e | 1119 | UID_INVALID, |
3d7415f4 LP |
1120 | &m->polkit_registry, |
1121 | error); | |
1122 | if (r < 0) | |
1123 | return r; | |
1124 | if (r == 0) | |
1125 | return 1; /* Will call us back */ | |
1126 | ||
1127 | r = sd_bus_message_read(msg, "u", &id); | |
1128 | if (r < 0) | |
1129 | return r; | |
1130 | if (id <= 0) | |
1131 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); | |
1132 | ||
1133 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1134 | if (!t) | |
09d46cfd | 1135 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1136 | |
1137 | r = transfer_cancel(t); | |
1138 | if (r < 0) | |
1139 | return r; | |
1140 | ||
1141 | return sd_bus_reply_method_return(msg, NULL); | |
1142 | } | |
1143 | ||
7079cfef LP |
1144 | static int property_get_progress( |
1145 | sd_bus *bus, | |
1146 | const char *path, | |
1147 | const char *interface, | |
1148 | const char *property, | |
1149 | sd_bus_message *reply, | |
1150 | void *userdata, | |
1151 | sd_bus_error *error) { | |
1152 | ||
1153 | Transfer *t = userdata; | |
1154 | ||
1155 | assert(bus); | |
1156 | assert(reply); | |
1157 | assert(t); | |
1158 | ||
1159 | return sd_bus_message_append(reply, "d", (double) t->progress_percent / 100.0); | |
1160 | } | |
1161 | ||
3d7415f4 LP |
1162 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1163 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1164 | ||
1165 | static const sd_bus_vtable transfer_vtable[] = { | |
1166 | SD_BUS_VTABLE_START(0), | |
1167 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
1168 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1169 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1170 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1171 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1172 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
3d7415f4 LP |
1173 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
1174 | SD_BUS_SIGNAL("LogMessage", "us", 0), | |
1175 | SD_BUS_VTABLE_END, | |
1176 | }; | |
1177 | ||
1178 | static const sd_bus_vtable manager_vtable[] = { | |
1179 | SD_BUS_VTABLE_START(0), | |
b6e676ce LP |
1180 | SD_BUS_METHOD("ImportTar", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1181 | SD_BUS_METHOD("ImportRaw", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
587fec42 LP |
1182 | SD_BUS_METHOD("ExportTar", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1183 | SD_BUS_METHOD("ExportRaw", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
3d7415f4 LP |
1184 | SD_BUS_METHOD("PullTar", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1185 | SD_BUS_METHOD("PullRaw", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1186 | SD_BUS_METHOD("PullDkr", "sssssb", "uo", method_pull_dkr, SD_BUS_VTABLE_UNPRIVILEGED), | |
7079cfef | 1187 | SD_BUS_METHOD("ListTransfers", NULL, "a(usssdo)", method_list_transfers, SD_BUS_VTABLE_UNPRIVILEGED), |
3d7415f4 LP |
1188 | SD_BUS_METHOD("CancelTransfer", "u", NULL, method_cancel_transfer, SD_BUS_VTABLE_UNPRIVILEGED), |
1189 | SD_BUS_SIGNAL("TransferNew", "uo", 0), | |
1190 | SD_BUS_SIGNAL("TransferRemoved", "uos", 0), | |
1191 | SD_BUS_VTABLE_END, | |
1192 | }; | |
1193 | ||
1194 | static int transfer_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
1195 | Manager *m = userdata; | |
1196 | Transfer *t; | |
1197 | const char *p; | |
1198 | uint32_t id; | |
1199 | int r; | |
1200 | ||
1201 | assert(bus); | |
1202 | assert(path); | |
1203 | assert(interface); | |
1204 | assert(found); | |
1205 | assert(m); | |
1206 | ||
1207 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1208 | if (!p) | |
1209 | return 0; | |
1210 | ||
1211 | r = safe_atou32(p, &id); | |
1212 | if (r < 0 || id == 0) | |
1213 | return 0; | |
1214 | ||
1215 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1216 | if (!t) | |
1217 | return 0; | |
1218 | ||
1219 | *found = t; | |
1220 | return 1; | |
1221 | } | |
1222 | ||
1223 | static int transfer_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
1224 | _cleanup_strv_free_ char **l = NULL; | |
1225 | Manager *m = userdata; | |
1226 | Transfer *t; | |
1227 | unsigned k = 0; | |
1228 | Iterator i; | |
1229 | ||
1230 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1231 | if (!l) | |
1232 | return -ENOMEM; | |
1233 | ||
1234 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1235 | ||
1236 | l[k] = strdup(t->object_path); | |
1237 | if (!l[k]) | |
1238 | return -ENOMEM; | |
1239 | ||
1240 | k++; | |
1241 | } | |
1242 | ||
1243 | *nodes = l; | |
1244 | l = NULL; | |
1245 | ||
1246 | return 1; | |
1247 | } | |
1248 | ||
1249 | static int manager_add_bus_objects(Manager *m) { | |
1250 | int r; | |
1251 | ||
1252 | assert(m); | |
1253 | ||
1254 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/import1", "org.freedesktop.import1.Manager", manager_vtable, m); | |
1255 | if (r < 0) | |
1256 | return log_error_errno(r, "Failed to register object: %m"); | |
1257 | ||
1258 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/import1/transfer", "org.freedesktop.import1.Transfer", transfer_vtable, transfer_object_find, m); | |
1259 | if (r < 0) | |
1260 | return log_error_errno(r, "Failed to register object: %m"); | |
1261 | ||
1262 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/import1/transfer", transfer_node_enumerator, m); | |
1263 | if (r < 0) | |
1264 | return log_error_errno(r, "Failed to add transfer enumerator: %m"); | |
1265 | ||
1266 | r = sd_bus_request_name(m->bus, "org.freedesktop.import1", 0); | |
1267 | if (r < 0) | |
1268 | return log_error_errno(r, "Failed to register name: %m"); | |
1269 | ||
1270 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1271 | if (r < 0) | |
1272 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1273 | ||
1274 | return 0; | |
1275 | } | |
1276 | ||
1277 | static bool manager_check_idle(void *userdata) { | |
1278 | Manager *m = userdata; | |
1279 | ||
1280 | return hashmap_isempty(m->transfers); | |
1281 | } | |
1282 | ||
1283 | static int manager_run(Manager *m) { | |
1284 | assert(m); | |
1285 | ||
1286 | return bus_event_loop_with_idle( | |
1287 | m->event, | |
1288 | m->bus, | |
1289 | "org.freedesktop.import1", | |
1290 | DEFAULT_EXIT_USEC, | |
1291 | manager_check_idle, | |
1292 | m); | |
1293 | } | |
1294 | ||
1295 | int main(int argc, char *argv[]) { | |
1296 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
1297 | int r; | |
1298 | ||
1299 | log_set_target(LOG_TARGET_AUTO); | |
1300 | log_parse_environment(); | |
1301 | log_open(); | |
1302 | ||
1303 | umask(0022); | |
1304 | ||
1305 | if (argc != 1) { | |
1306 | log_error("This program takes no arguments."); | |
1307 | r = -EINVAL; | |
1308 | goto finish; | |
1309 | } | |
1310 | ||
72c0a2c2 | 1311 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); |
3d7415f4 LP |
1312 | |
1313 | r = manager_new(&m); | |
1314 | if (r < 0) { | |
1315 | log_error_errno(r, "Failed to allocate manager object: %m"); | |
1316 | goto finish; | |
1317 | } | |
1318 | ||
1319 | r = manager_add_bus_objects(m); | |
1320 | if (r < 0) | |
1321 | goto finish; | |
1322 | ||
1323 | r = manager_run(m); | |
1324 | if (r < 0) { | |
1325 | log_error_errno(r, "Failed to run event loop: %m"); | |
1326 | goto finish; | |
1327 | } | |
1328 | ||
1329 | finish: | |
1330 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1331 | } |