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e735f4d4 MP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2015 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <sys/prctl.h> | |
23 | ||
24 | #include "sd-bus.h" | |
25 | #include "util.h" | |
26 | #include "strv.h" | |
27 | #include "bus-util.h" | |
28 | #include "bus-common-errors.h" | |
e735f4d4 MP |
29 | #include "socket-util.h" |
30 | #include "mkdir.h" | |
e735f4d4 | 31 | #include "def.h" |
e3bff60a MP |
32 | #include "missing.h" |
33 | #include "machine-pool.h" | |
34 | #include "path-util.h" | |
35 | #include "import-util.h" | |
36 | #include "process-util.h" | |
86f210e9 | 37 | #include "signal-util.h" |
e735f4d4 MP |
38 | |
39 | typedef struct Transfer Transfer; | |
40 | typedef struct Manager Manager; | |
41 | ||
42 | typedef enum TransferType { | |
e3bff60a MP |
43 | TRANSFER_IMPORT_TAR, |
44 | TRANSFER_IMPORT_RAW, | |
45 | TRANSFER_EXPORT_TAR, | |
46 | TRANSFER_EXPORT_RAW, | |
47 | TRANSFER_PULL_TAR, | |
48 | TRANSFER_PULL_RAW, | |
49 | TRANSFER_PULL_DKR, | |
e735f4d4 MP |
50 | _TRANSFER_TYPE_MAX, |
51 | _TRANSFER_TYPE_INVALID = -1, | |
52 | } TransferType; | |
53 | ||
54 | struct Transfer { | |
55 | Manager *manager; | |
56 | ||
57 | uint32_t id; | |
58 | char *object_path; | |
59 | ||
60 | TransferType type; | |
61 | ImportVerify verify; | |
62 | ||
63 | char *remote; | |
64 | char *local; | |
65 | bool force_local; | |
e3bff60a | 66 | bool read_only; |
e735f4d4 MP |
67 | |
68 | char *dkr_index_url; | |
e3bff60a | 69 | char *format; |
e735f4d4 MP |
70 | |
71 | pid_t pid; | |
72 | ||
73 | int log_fd; | |
74 | ||
75 | char log_message[LINE_MAX]; | |
76 | size_t log_message_size; | |
77 | ||
78 | sd_event_source *pid_event_source; | |
79 | sd_event_source *log_event_source; | |
80 | ||
81 | unsigned n_canceled; | |
82 | unsigned progress_percent; | |
e3bff60a MP |
83 | |
84 | int stdin_fd; | |
85 | int stdout_fd; | |
e735f4d4 MP |
86 | }; |
87 | ||
88 | struct Manager { | |
89 | sd_event *event; | |
90 | sd_bus *bus; | |
91 | ||
92 | uint32_t current_transfer_id; | |
93 | Hashmap *transfers; | |
94 | ||
95 | Hashmap *polkit_registry; | |
96 | ||
97 | int notify_fd; | |
98 | ||
99 | sd_event_source *notify_event_source; | |
100 | }; | |
101 | ||
102 | #define TRANSFERS_MAX 64 | |
103 | ||
104 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
e3bff60a MP |
105 | [TRANSFER_IMPORT_TAR] = "import-tar", |
106 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
107 | [TRANSFER_EXPORT_TAR] = "export-tar", | |
108 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
109 | [TRANSFER_PULL_TAR] = "pull-tar", | |
110 | [TRANSFER_PULL_RAW] = "pull-raw", | |
111 | [TRANSFER_PULL_DKR] = "pull-dkr", | |
e735f4d4 MP |
112 | }; |
113 | ||
114 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); | |
115 | ||
116 | static Transfer *transfer_unref(Transfer *t) { | |
117 | if (!t) | |
118 | return NULL; | |
119 | ||
120 | if (t->manager) | |
121 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
122 | ||
123 | sd_event_source_unref(t->pid_event_source); | |
124 | sd_event_source_unref(t->log_event_source); | |
125 | ||
126 | free(t->remote); | |
127 | free(t->local); | |
128 | free(t->dkr_index_url); | |
e3bff60a | 129 | free(t->format); |
e735f4d4 MP |
130 | free(t->object_path); |
131 | ||
132 | if (t->pid > 0) { | |
133 | (void) kill_and_sigcont(t->pid, SIGKILL); | |
134 | (void) wait_for_terminate(t->pid, NULL); | |
135 | } | |
136 | ||
137 | safe_close(t->log_fd); | |
e3bff60a MP |
138 | safe_close(t->stdin_fd); |
139 | safe_close(t->stdout_fd); | |
e735f4d4 MP |
140 | |
141 | free(t); | |
142 | return NULL; | |
143 | } | |
144 | ||
145 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
146 | ||
147 | static int transfer_new(Manager *m, Transfer **ret) { | |
148 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
149 | uint32_t id; | |
150 | int r; | |
151 | ||
152 | assert(m); | |
153 | assert(ret); | |
154 | ||
155 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
156 | return -E2BIG; | |
157 | ||
158 | r = hashmap_ensure_allocated(&m->transfers, &trivial_hash_ops); | |
159 | if (r < 0) | |
160 | return r; | |
161 | ||
162 | t = new0(Transfer, 1); | |
163 | if (!t) | |
164 | return -ENOMEM; | |
165 | ||
166 | t->type = _TRANSFER_TYPE_INVALID; | |
167 | t->log_fd = -1; | |
e3bff60a MP |
168 | t->stdin_fd = -1; |
169 | t->verify = _IMPORT_VERIFY_INVALID; | |
e735f4d4 MP |
170 | |
171 | id = m->current_transfer_id + 1; | |
172 | ||
173 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
174 | return -ENOMEM; | |
175 | ||
176 | r = hashmap_put(m->transfers, UINT32_TO_PTR(id), t); | |
177 | if (r < 0) | |
178 | return r; | |
179 | ||
180 | m->current_transfer_id = id; | |
181 | ||
182 | t->manager = m; | |
183 | t->id = id; | |
184 | ||
185 | *ret = t; | |
186 | t = NULL; | |
187 | ||
188 | return 0; | |
189 | } | |
190 | ||
191 | static void transfer_send_log_line(Transfer *t, const char *line) { | |
192 | int r, priority = LOG_INFO; | |
193 | ||
194 | assert(t); | |
195 | assert(line); | |
196 | ||
197 | syslog_parse_priority(&line, &priority, true); | |
198 | ||
199 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); | |
200 | ||
201 | r = sd_bus_emit_signal( | |
202 | t->manager->bus, | |
203 | t->object_path, | |
204 | "org.freedesktop.import1.Transfer", | |
205 | "LogMessage", | |
206 | "us", | |
207 | priority, | |
208 | line); | |
209 | if (r < 0) | |
210 | log_error_errno(r, "Cannot emit message: %m"); | |
211 | } | |
212 | ||
213 | static void transfer_send_logs(Transfer *t, bool flush) { | |
214 | assert(t); | |
215 | ||
216 | /* Try to send out all log messages, if we can. But if we | |
217 | * can't we remove the messages from the buffer, but don't | |
218 | * fail */ | |
219 | ||
220 | while (t->log_message_size > 0) { | |
221 | _cleanup_free_ char *n = NULL; | |
222 | char *e; | |
223 | ||
224 | if (t->log_message_size >= sizeof(t->log_message)) | |
225 | e = t->log_message + sizeof(t->log_message); | |
226 | else { | |
227 | char *a, *b; | |
228 | ||
229 | a = memchr(t->log_message, 0, t->log_message_size); | |
230 | b = memchr(t->log_message, '\n', t->log_message_size); | |
231 | ||
232 | if (a && b) | |
233 | e = a < b ? a : b; | |
234 | else if (a) | |
235 | e = a; | |
236 | else | |
237 | e = b; | |
238 | } | |
239 | ||
240 | if (!e) { | |
241 | if (!flush) | |
242 | return; | |
243 | ||
244 | e = t->log_message + t->log_message_size; | |
245 | } | |
246 | ||
247 | n = strndup(t->log_message, e - t->log_message); | |
248 | ||
249 | /* Skip over NUL and newlines */ | |
e3bff60a | 250 | while ((e < t->log_message + t->log_message_size) && (*e == 0 || *e == '\n')) |
e735f4d4 MP |
251 | e++; |
252 | ||
253 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
254 | t->log_message_size -= e - t->log_message; | |
255 | ||
256 | if (!n) { | |
257 | log_oom(); | |
258 | continue; | |
259 | } | |
260 | ||
261 | if (isempty(n)) | |
262 | continue; | |
263 | ||
264 | transfer_send_log_line(t, n); | |
265 | } | |
266 | } | |
267 | ||
268 | static int transfer_finalize(Transfer *t, bool success) { | |
269 | int r; | |
270 | ||
271 | assert(t); | |
272 | ||
273 | transfer_send_logs(t, true); | |
274 | ||
275 | r = sd_bus_emit_signal( | |
276 | t->manager->bus, | |
277 | "/org/freedesktop/import1", | |
278 | "org.freedesktop.import1.Manager", | |
279 | "TransferRemoved", | |
280 | "uos", | |
281 | t->id, | |
282 | t->object_path, | |
283 | success ? "done" : | |
284 | t->n_canceled > 0 ? "canceled" : "failed"); | |
285 | ||
286 | if (r < 0) | |
287 | log_error_errno(r, "Cannot emit message: %m"); | |
288 | ||
289 | transfer_unref(t); | |
290 | return 0; | |
291 | } | |
292 | ||
293 | static int transfer_cancel(Transfer *t) { | |
294 | int r; | |
295 | ||
296 | assert(t); | |
297 | ||
298 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
299 | if (r < 0) | |
300 | return r; | |
301 | ||
302 | t->n_canceled++; | |
303 | return 0; | |
304 | } | |
305 | ||
306 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
307 | Transfer *t = userdata; | |
308 | bool success = false; | |
309 | ||
310 | assert(s); | |
311 | assert(t); | |
312 | ||
313 | if (si->si_code == CLD_EXITED) { | |
314 | if (si->si_status != 0) | |
315 | log_error("Import process failed with exit code %i.", si->si_status); | |
316 | else { | |
317 | log_debug("Import process succeeded."); | |
318 | success = true; | |
319 | } | |
320 | ||
321 | } else if (si->si_code == CLD_KILLED || | |
322 | si->si_code == CLD_DUMPED) | |
323 | ||
324 | log_error("Import process terminated by signal %s.", signal_to_string(si->si_status)); | |
325 | else | |
326 | log_error("Import process failed due to unknown reason."); | |
327 | ||
328 | t->pid = 0; | |
329 | ||
330 | return transfer_finalize(t, success); | |
331 | } | |
332 | ||
333 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
334 | Transfer *t = userdata; | |
335 | ssize_t l; | |
336 | ||
337 | assert(s); | |
338 | assert(t); | |
339 | ||
340 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
341 | if (l <= 0) { | |
342 | /* EOF/read error. We just close the pipe here, and | |
343 | * close the watch, waiting for the SIGCHLD to arrive, | |
344 | * before we do anything else. */ | |
345 | ||
346 | if (l < 0) | |
347 | log_error_errno(errno, "Failed to read log message: %m"); | |
348 | ||
349 | t->log_event_source = sd_event_source_unref(t->log_event_source); | |
350 | return 0; | |
351 | } | |
352 | ||
353 | t->log_message_size += l; | |
354 | ||
355 | transfer_send_logs(t, false); | |
356 | ||
357 | return 0; | |
358 | } | |
359 | ||
360 | static int transfer_start(Transfer *t) { | |
361 | _cleanup_close_pair_ int pipefd[2] = { -1, -1 }; | |
362 | int r; | |
363 | ||
364 | assert(t); | |
365 | assert(t->pid <= 0); | |
366 | ||
367 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
368 | return -errno; | |
369 | ||
370 | t->pid = fork(); | |
371 | if (t->pid < 0) | |
372 | return -errno; | |
373 | if (t->pid == 0) { | |
374 | const char *cmd[] = { | |
e3bff60a MP |
375 | NULL, /* systemd-import, systemd-export or systemd-pull */ |
376 | NULL, /* tar, raw, dkr */ | |
377 | NULL, /* --verify= */ | |
e735f4d4 MP |
378 | NULL, /* verify argument */ |
379 | NULL, /* maybe --force */ | |
e3bff60a | 380 | NULL, /* maybe --read-only */ |
e735f4d4 | 381 | NULL, /* maybe --dkr-index-url */ |
e3bff60a MP |
382 | NULL, /* if so: the actual URL */ |
383 | NULL, /* maybe --format= */ | |
384 | NULL, /* if so: the actual format */ | |
e735f4d4 MP |
385 | NULL, /* remote */ |
386 | NULL, /* local */ | |
387 | NULL | |
388 | }; | |
e3bff60a | 389 | unsigned k = 0; |
e735f4d4 MP |
390 | |
391 | /* Child */ | |
392 | ||
86f210e9 MP |
393 | (void) reset_all_signal_handlers(); |
394 | (void) reset_signal_mask(); | |
e735f4d4 MP |
395 | assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); |
396 | ||
397 | pipefd[0] = safe_close(pipefd[0]); | |
398 | ||
e3bff60a | 399 | if (dup2(pipefd[1], STDERR_FILENO) != STDERR_FILENO) { |
e735f4d4 MP |
400 | log_error_errno(errno, "Failed to dup2() fd: %m"); |
401 | _exit(EXIT_FAILURE); | |
402 | } | |
403 | ||
e3bff60a MP |
404 | if (t->stdout_fd >= 0) { |
405 | if (dup2(t->stdout_fd, STDOUT_FILENO) != STDOUT_FILENO) { | |
406 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
407 | _exit(EXIT_FAILURE); | |
408 | } | |
409 | ||
410 | if (t->stdout_fd != STDOUT_FILENO) | |
411 | safe_close(t->stdout_fd); | |
412 | } else { | |
413 | if (dup2(pipefd[1], STDOUT_FILENO) != STDOUT_FILENO) { | |
414 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
415 | _exit(EXIT_FAILURE); | |
416 | } | |
e735f4d4 MP |
417 | } |
418 | ||
419 | if (pipefd[1] != STDOUT_FILENO && pipefd[1] != STDERR_FILENO) | |
420 | pipefd[1] = safe_close(pipefd[1]); | |
421 | ||
e3bff60a MP |
422 | if (t->stdin_fd >= 0) { |
423 | if (dup2(t->stdin_fd, STDIN_FILENO) != STDIN_FILENO) { | |
424 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
425 | _exit(EXIT_FAILURE); | |
426 | } | |
427 | ||
428 | if (t->stdin_fd != STDIN_FILENO) | |
429 | safe_close(t->stdin_fd); | |
430 | } else { | |
431 | int null_fd; | |
432 | ||
433 | null_fd = open("/dev/null", O_RDONLY|O_NOCTTY); | |
434 | if (null_fd < 0) { | |
435 | log_error_errno(errno, "Failed to open /dev/null: %m"); | |
436 | _exit(EXIT_FAILURE); | |
437 | } | |
438 | ||
439 | if (dup2(null_fd, STDIN_FILENO) != STDIN_FILENO) { | |
440 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
441 | _exit(EXIT_FAILURE); | |
442 | } | |
443 | ||
444 | if (null_fd != STDIN_FILENO) | |
445 | safe_close(null_fd); | |
e735f4d4 MP |
446 | } |
447 | ||
e735f4d4 MP |
448 | fd_cloexec(STDIN_FILENO, false); |
449 | fd_cloexec(STDOUT_FILENO, false); | |
450 | fd_cloexec(STDERR_FILENO, false); | |
451 | ||
452 | setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1); | |
453 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1); | |
454 | ||
e3bff60a MP |
455 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_IMPORT_RAW)) |
456 | cmd[k++] = SYSTEMD_IMPORT_PATH; | |
457 | else if (IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) | |
458 | cmd[k++] = SYSTEMD_EXPORT_PATH; | |
459 | else | |
460 | cmd[k++] = SYSTEMD_PULL_PATH; | |
461 | ||
462 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_EXPORT_TAR, TRANSFER_PULL_TAR)) | |
463 | cmd[k++] = "tar"; | |
464 | else if (IN_SET(t->type, TRANSFER_IMPORT_RAW, TRANSFER_EXPORT_RAW, TRANSFER_PULL_RAW)) | |
465 | cmd[k++] = "raw"; | |
466 | else | |
467 | cmd[k++] = "dkr"; | |
468 | ||
469 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
470 | cmd[k++] = "--verify"; | |
471 | cmd[k++] = import_verify_to_string(t->verify); | |
472 | } | |
473 | ||
e735f4d4 MP |
474 | if (t->force_local) |
475 | cmd[k++] = "--force"; | |
e3bff60a MP |
476 | if (t->read_only) |
477 | cmd[k++] = "--read-only"; | |
e735f4d4 MP |
478 | |
479 | if (t->dkr_index_url) { | |
480 | cmd[k++] = "--dkr-index-url"; | |
481 | cmd[k++] = t->dkr_index_url; | |
482 | } | |
483 | ||
e3bff60a MP |
484 | if (t->format) { |
485 | cmd[k++] = "--format"; | |
486 | cmd[k++] = t->format; | |
487 | } | |
488 | ||
489 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
490 | if (t->remote) | |
491 | cmd[k++] = t->remote; | |
492 | else | |
493 | cmd[k++] = "-"; | |
494 | } | |
495 | ||
e735f4d4 MP |
496 | if (t->local) |
497 | cmd[k++] = t->local; | |
498 | cmd[k] = NULL; | |
499 | ||
e3bff60a MP |
500 | execv(cmd[0], (char * const *) cmd); |
501 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
e735f4d4 MP |
502 | _exit(EXIT_FAILURE); |
503 | } | |
504 | ||
505 | pipefd[1] = safe_close(pipefd[1]); | |
506 | t->log_fd = pipefd[0]; | |
507 | pipefd[0] = -1; | |
508 | ||
e3bff60a MP |
509 | t->stdin_fd = safe_close(t->stdin_fd); |
510 | ||
e735f4d4 MP |
511 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, t->pid, WEXITED, transfer_on_pid, t); |
512 | if (r < 0) | |
513 | return r; | |
514 | ||
515 | r = sd_event_add_io(t->manager->event, &t->log_event_source, t->log_fd, EPOLLIN, transfer_on_log, t); | |
516 | if (r < 0) | |
517 | return r; | |
518 | ||
519 | /* Make sure always process logging before SIGCHLD */ | |
520 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
521 | if (r < 0) | |
522 | return r; | |
523 | ||
524 | r = sd_bus_emit_signal( | |
525 | t->manager->bus, | |
526 | "/org/freedesktop/import1", | |
527 | "org.freedesktop.import1.Manager", | |
528 | "TransferNew", | |
529 | "uo", | |
530 | t->id, | |
531 | t->object_path); | |
532 | if (r < 0) | |
533 | return r; | |
534 | ||
535 | return 0; | |
536 | } | |
537 | ||
538 | static Manager *manager_unref(Manager *m) { | |
539 | Transfer *t; | |
540 | ||
541 | if (!m) | |
542 | return NULL; | |
543 | ||
544 | sd_event_source_unref(m->notify_event_source); | |
545 | safe_close(m->notify_fd); | |
546 | ||
547 | while ((t = hashmap_first(m->transfers))) | |
548 | transfer_unref(t); | |
549 | ||
550 | hashmap_free(m->transfers); | |
551 | ||
552 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
553 | ||
554 | sd_bus_close(m->bus); | |
555 | sd_bus_unref(m->bus); | |
556 | sd_event_unref(m->event); | |
557 | ||
558 | free(m); | |
559 | return NULL; | |
560 | } | |
561 | ||
562 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
563 | ||
564 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
565 | ||
566 | char buf[NOTIFY_BUFFER_MAX+1]; | |
567 | struct iovec iovec = { | |
568 | .iov_base = buf, | |
569 | .iov_len = sizeof(buf)-1, | |
570 | }; | |
571 | union { | |
572 | struct cmsghdr cmsghdr; | |
573 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
574 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
575 | } control = {}; | |
576 | struct msghdr msghdr = { | |
577 | .msg_iov = &iovec, | |
578 | .msg_iovlen = 1, | |
579 | .msg_control = &control, | |
580 | .msg_controllen = sizeof(control), | |
581 | }; | |
582 | struct ucred *ucred = NULL; | |
583 | Manager *m = userdata; | |
584 | struct cmsghdr *cmsg; | |
585 | unsigned percent; | |
586 | char *p, *e; | |
587 | Transfer *t; | |
588 | Iterator i; | |
589 | ssize_t n; | |
590 | int r; | |
591 | ||
592 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); | |
593 | if (n < 0) { | |
594 | if (errno == EAGAIN || errno == EINTR) | |
595 | return 0; | |
596 | ||
597 | return -errno; | |
598 | } | |
599 | ||
e3bff60a MP |
600 | cmsg_close_all(&msghdr); |
601 | ||
86f210e9 | 602 | CMSG_FOREACH(cmsg, &msghdr) { |
e3bff60a | 603 | if (cmsg->cmsg_level == SOL_SOCKET && |
e735f4d4 MP |
604 | cmsg->cmsg_type == SCM_CREDENTIALS && |
605 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) { | |
606 | ||
607 | ucred = (struct ucred*) CMSG_DATA(cmsg); | |
608 | } | |
609 | } | |
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 | ||
656 | static int manager_new(Manager **ret) { | |
657 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
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; | |
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 | ||
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 | ||
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 | ||
e3bff60a MP |
723 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
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 | ||
731 | assert(msg); | |
732 | assert(m); | |
733 | ||
734 | r = bus_verify_polkit_async( | |
735 | msg, | |
736 | CAP_SYS_ADMIN, | |
737 | "org.freedesktop.import1.import", | |
738 | false, | |
739 | UID_INVALID, | |
740 | &m->polkit_registry, | |
741 | error); | |
742 | if (r < 0) | |
743 | return r; | |
744 | if (r == 0) | |
745 | return 1; /* Will call us back */ | |
746 | ||
747 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
748 | if (r < 0) | |
749 | return r; | |
750 | ||
751 | if (!machine_name_is_valid(local)) | |
752 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
753 | ||
754 | r = setup_machine_directory((uint64_t) -1, error); | |
755 | if (r < 0) | |
756 | return r; | |
757 | ||
758 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
759 | ||
760 | r = transfer_new(m, &t); | |
761 | if (r < 0) | |
762 | return r; | |
763 | ||
764 | t->type = type; | |
765 | t->force_local = force; | |
766 | t->read_only = read_only; | |
767 | ||
768 | t->local = strdup(local); | |
769 | if (!t->local) | |
770 | return -ENOMEM; | |
771 | ||
772 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
773 | if (t->stdin_fd < 0) | |
774 | return -errno; | |
775 | ||
776 | r = transfer_start(t); | |
777 | if (r < 0) | |
778 | return r; | |
779 | ||
780 | object = t->object_path; | |
781 | id = t->id; | |
782 | t = NULL; | |
783 | ||
784 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
785 | } | |
786 | ||
787 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { | |
788 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
789 | int fd, r; | |
790 | const char *local, *object, *format; | |
791 | Manager *m = userdata; | |
792 | TransferType type; | |
793 | uint32_t id; | |
794 | ||
795 | assert(msg); | |
796 | assert(m); | |
797 | ||
798 | r = bus_verify_polkit_async( | |
799 | msg, | |
800 | CAP_SYS_ADMIN, | |
801 | "org.freedesktop.import1.export", | |
802 | false, | |
803 | UID_INVALID, | |
804 | &m->polkit_registry, | |
805 | error); | |
806 | if (r < 0) | |
807 | return r; | |
808 | if (r == 0) | |
809 | return 1; /* Will call us back */ | |
810 | ||
811 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
812 | if (r < 0) | |
813 | return r; | |
814 | ||
815 | if (!machine_name_is_valid(local)) | |
816 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
817 | ||
818 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
819 | ||
820 | r = transfer_new(m, &t); | |
821 | if (r < 0) | |
822 | return r; | |
823 | ||
824 | t->type = type; | |
825 | ||
826 | if (!isempty(format)) { | |
827 | t->format = strdup(format); | |
828 | if (!t->format) | |
829 | return -ENOMEM; | |
830 | } | |
831 | ||
832 | t->local = strdup(local); | |
833 | if (!t->local) | |
834 | return -ENOMEM; | |
835 | ||
836 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
837 | if (t->stdout_fd < 0) | |
838 | return -errno; | |
839 | ||
840 | r = transfer_start(t); | |
841 | if (r < 0) | |
842 | return r; | |
843 | ||
844 | object = t->object_path; | |
845 | id = t->id; | |
846 | t = NULL; | |
847 | ||
848 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
849 | } | |
850 | ||
851 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { | |
e735f4d4 MP |
852 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
853 | const char *remote, *local, *verify, *object; | |
854 | Manager *m = userdata; | |
855 | ImportVerify v; | |
856 | TransferType type; | |
857 | int force, r; | |
858 | uint32_t id; | |
859 | ||
e735f4d4 MP |
860 | assert(msg); |
861 | assert(m); | |
862 | ||
863 | r = bus_verify_polkit_async( | |
864 | msg, | |
865 | CAP_SYS_ADMIN, | |
866 | "org.freedesktop.import1.pull", | |
867 | false, | |
e3bff60a | 868 | UID_INVALID, |
e735f4d4 MP |
869 | &m->polkit_registry, |
870 | error); | |
871 | if (r < 0) | |
872 | return r; | |
873 | if (r == 0) | |
874 | return 1; /* Will call us back */ | |
875 | ||
876 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
877 | if (r < 0) | |
878 | return r; | |
879 | ||
880 | if (!http_url_is_valid(remote)) | |
881 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "URL %s is invalid", remote); | |
882 | ||
883 | if (isempty(local)) | |
884 | local = NULL; | |
885 | else if (!machine_name_is_valid(local)) | |
886 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
887 | ||
888 | if (isempty(verify)) | |
889 | v = IMPORT_VERIFY_SIGNATURE; | |
890 | else | |
891 | v = import_verify_from_string(verify); | |
892 | if (v < 0) | |
893 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
894 | ||
e3bff60a MP |
895 | r = setup_machine_directory((uint64_t) -1, error); |
896 | if (r < 0) | |
897 | return r; | |
898 | ||
899 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; | |
e735f4d4 MP |
900 | |
901 | if (manager_find(m, type, NULL, remote)) | |
902 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); | |
903 | ||
904 | r = transfer_new(m, &t); | |
905 | if (r < 0) | |
906 | return r; | |
907 | ||
908 | t->type = type; | |
909 | t->verify = v; | |
910 | t->force_local = force; | |
911 | ||
912 | t->remote = strdup(remote); | |
913 | if (!t->remote) | |
914 | return -ENOMEM; | |
915 | ||
e3bff60a MP |
916 | if (local) { |
917 | t->local = strdup(local); | |
918 | if (!t->local) | |
919 | return -ENOMEM; | |
920 | } | |
e735f4d4 MP |
921 | |
922 | r = transfer_start(t); | |
923 | if (r < 0) | |
924 | return r; | |
925 | ||
926 | object = t->object_path; | |
927 | id = t->id; | |
928 | t = NULL; | |
929 | ||
930 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
931 | } | |
932 | ||
e3bff60a | 933 | static int method_pull_dkr(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
e735f4d4 MP |
934 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
935 | const char *index_url, *remote, *tag, *local, *verify, *object; | |
936 | Manager *m = userdata; | |
937 | ImportVerify v; | |
938 | int force, r; | |
939 | uint32_t id; | |
940 | ||
e735f4d4 MP |
941 | assert(msg); |
942 | assert(m); | |
943 | ||
944 | r = bus_verify_polkit_async( | |
945 | msg, | |
946 | CAP_SYS_ADMIN, | |
947 | "org.freedesktop.import1.pull", | |
948 | false, | |
e3bff60a | 949 | UID_INVALID, |
e735f4d4 MP |
950 | &m->polkit_registry, |
951 | error); | |
952 | if (r < 0) | |
953 | return r; | |
954 | if (r == 0) | |
955 | return 1; /* Will call us back */ | |
956 | ||
957 | r = sd_bus_message_read(msg, "sssssb", &index_url, &remote, &tag, &local, &verify, &force); | |
958 | if (r < 0) | |
959 | return r; | |
960 | ||
961 | if (isempty(index_url)) | |
962 | index_url = DEFAULT_DKR_INDEX_URL; | |
963 | if (!index_url) | |
964 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL must be specified."); | |
965 | if (!http_url_is_valid(index_url)) | |
966 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL %s is invalid", index_url); | |
967 | ||
968 | if (!dkr_name_is_valid(remote)) | |
969 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Remote name %s is not valid", remote); | |
970 | ||
971 | if (isempty(tag)) | |
972 | tag = "latest"; | |
973 | else if (!dkr_tag_is_valid(tag)) | |
974 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Tag %s is not valid", tag); | |
975 | ||
976 | if (isempty(local)) | |
977 | local = NULL; | |
978 | else if (!machine_name_is_valid(local)) | |
979 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
980 | ||
981 | if (isempty(verify)) | |
982 | v = IMPORT_VERIFY_SIGNATURE; | |
983 | else | |
984 | v = import_verify_from_string(verify); | |
985 | if (v < 0) | |
986 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
987 | ||
988 | if (v != IMPORT_VERIFY_NO) | |
989 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "DKR does not support verification."); | |
990 | ||
e3bff60a MP |
991 | r = setup_machine_directory((uint64_t) -1, error); |
992 | if (r < 0) | |
993 | return r; | |
994 | ||
995 | if (manager_find(m, TRANSFER_PULL_DKR, index_url, remote)) | |
e735f4d4 MP |
996 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); |
997 | ||
998 | r = transfer_new(m, &t); | |
999 | if (r < 0) | |
1000 | return r; | |
1001 | ||
e3bff60a | 1002 | t->type = TRANSFER_PULL_DKR; |
e735f4d4 MP |
1003 | t->verify = v; |
1004 | t->force_local = force; | |
1005 | ||
1006 | t->dkr_index_url = strdup(index_url); | |
1007 | if (!t->dkr_index_url) | |
1008 | return -ENOMEM; | |
1009 | ||
1010 | t->remote = strjoin(remote, ":", tag, NULL); | |
1011 | if (!t->remote) | |
1012 | return -ENOMEM; | |
1013 | ||
e3bff60a MP |
1014 | if (local) { |
1015 | t->local = strdup(local); | |
1016 | if (!t->local) | |
1017 | return -ENOMEM; | |
1018 | } | |
e735f4d4 MP |
1019 | |
1020 | r = transfer_start(t); | |
1021 | if (r < 0) | |
1022 | return r; | |
1023 | ||
1024 | object = t->object_path; | |
1025 | id = t->id; | |
1026 | t = NULL; | |
1027 | ||
1028 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
1029 | } | |
1030 | ||
e3bff60a | 1031 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
e735f4d4 MP |
1032 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
1033 | Manager *m = userdata; | |
1034 | Transfer *t; | |
1035 | Iterator i; | |
1036 | int r; | |
1037 | ||
e735f4d4 MP |
1038 | assert(msg); |
1039 | assert(m); | |
1040 | ||
1041 | r = sd_bus_message_new_method_return(msg, &reply); | |
1042 | if (r < 0) | |
1043 | return r; | |
1044 | ||
1045 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); | |
1046 | if (r < 0) | |
1047 | return r; | |
1048 | ||
1049 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1050 | ||
1051 | r = sd_bus_message_append( | |
1052 | reply, | |
1053 | "(usssdo)", | |
1054 | t->id, | |
1055 | transfer_type_to_string(t->type), | |
1056 | t->remote, | |
1057 | t->local, | |
1058 | (double) t->progress_percent / 100.0, | |
1059 | t->object_path); | |
1060 | if (r < 0) | |
1061 | return r; | |
1062 | } | |
1063 | ||
1064 | r = sd_bus_message_close_container(reply); | |
1065 | if (r < 0) | |
1066 | return r; | |
1067 | ||
e3bff60a | 1068 | return sd_bus_send(NULL, reply, NULL); |
e735f4d4 MP |
1069 | } |
1070 | ||
e3bff60a | 1071 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
e735f4d4 MP |
1072 | Transfer *t = userdata; |
1073 | int r; | |
1074 | ||
e735f4d4 MP |
1075 | assert(msg); |
1076 | assert(t); | |
1077 | ||
1078 | r = bus_verify_polkit_async( | |
1079 | msg, | |
1080 | CAP_SYS_ADMIN, | |
1081 | "org.freedesktop.import1.pull", | |
1082 | false, | |
e3bff60a | 1083 | UID_INVALID, |
e735f4d4 MP |
1084 | &t->manager->polkit_registry, |
1085 | error); | |
1086 | if (r < 0) | |
1087 | return r; | |
1088 | if (r == 0) | |
1089 | return 1; /* Will call us back */ | |
1090 | ||
1091 | r = transfer_cancel(t); | |
1092 | if (r < 0) | |
1093 | return r; | |
1094 | ||
1095 | return sd_bus_reply_method_return(msg, NULL); | |
1096 | } | |
1097 | ||
e3bff60a | 1098 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
e735f4d4 MP |
1099 | Manager *m = userdata; |
1100 | Transfer *t; | |
1101 | uint32_t id; | |
1102 | int r; | |
1103 | ||
e735f4d4 MP |
1104 | assert(msg); |
1105 | assert(m); | |
1106 | ||
1107 | r = bus_verify_polkit_async( | |
1108 | msg, | |
1109 | CAP_SYS_ADMIN, | |
1110 | "org.freedesktop.import1.pull", | |
1111 | false, | |
e3bff60a | 1112 | UID_INVALID, |
e735f4d4 MP |
1113 | &m->polkit_registry, |
1114 | error); | |
1115 | if (r < 0) | |
1116 | return r; | |
1117 | if (r == 0) | |
1118 | return 1; /* Will call us back */ | |
1119 | ||
1120 | r = sd_bus_message_read(msg, "u", &id); | |
1121 | if (r < 0) | |
1122 | return r; | |
1123 | if (id <= 0) | |
1124 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); | |
1125 | ||
1126 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1127 | if (!t) | |
1128 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); | |
1129 | ||
1130 | r = transfer_cancel(t); | |
1131 | if (r < 0) | |
1132 | return r; | |
1133 | ||
1134 | return sd_bus_reply_method_return(msg, NULL); | |
1135 | } | |
1136 | ||
1137 | static int property_get_progress( | |
1138 | sd_bus *bus, | |
1139 | const char *path, | |
1140 | const char *interface, | |
1141 | const char *property, | |
1142 | sd_bus_message *reply, | |
1143 | void *userdata, | |
1144 | sd_bus_error *error) { | |
1145 | ||
1146 | Transfer *t = userdata; | |
1147 | ||
1148 | assert(bus); | |
1149 | assert(reply); | |
1150 | assert(t); | |
1151 | ||
1152 | return sd_bus_message_append(reply, "d", (double) t->progress_percent / 100.0); | |
1153 | } | |
1154 | ||
1155 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); | |
1156 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1157 | ||
1158 | static const sd_bus_vtable transfer_vtable[] = { | |
1159 | SD_BUS_VTABLE_START(0), | |
1160 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
1161 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1162 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1163 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1164 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
1165 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), | |
1166 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), | |
1167 | SD_BUS_SIGNAL("LogMessage", "us", 0), | |
1168 | SD_BUS_VTABLE_END, | |
1169 | }; | |
1170 | ||
1171 | static const sd_bus_vtable manager_vtable[] = { | |
1172 | SD_BUS_VTABLE_START(0), | |
e3bff60a MP |
1173 | SD_BUS_METHOD("ImportTar", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1174 | SD_BUS_METHOD("ImportRaw", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1175 | SD_BUS_METHOD("ExportTar", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1176 | SD_BUS_METHOD("ExportRaw", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
e735f4d4 MP |
1177 | SD_BUS_METHOD("PullTar", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1178 | SD_BUS_METHOD("PullRaw", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1179 | SD_BUS_METHOD("PullDkr", "sssssb", "uo", method_pull_dkr, SD_BUS_VTABLE_UNPRIVILEGED), | |
1180 | SD_BUS_METHOD("ListTransfers", NULL, "a(usssdo)", method_list_transfers, SD_BUS_VTABLE_UNPRIVILEGED), | |
1181 | SD_BUS_METHOD("CancelTransfer", "u", NULL, method_cancel_transfer, SD_BUS_VTABLE_UNPRIVILEGED), | |
1182 | SD_BUS_SIGNAL("TransferNew", "uo", 0), | |
1183 | SD_BUS_SIGNAL("TransferRemoved", "uos", 0), | |
1184 | SD_BUS_VTABLE_END, | |
1185 | }; | |
1186 | ||
1187 | static int transfer_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
1188 | Manager *m = userdata; | |
1189 | Transfer *t; | |
1190 | const char *p; | |
1191 | uint32_t id; | |
1192 | int r; | |
1193 | ||
1194 | assert(bus); | |
1195 | assert(path); | |
1196 | assert(interface); | |
1197 | assert(found); | |
1198 | assert(m); | |
1199 | ||
1200 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1201 | if (!p) | |
1202 | return 0; | |
1203 | ||
1204 | r = safe_atou32(p, &id); | |
1205 | if (r < 0 || id == 0) | |
1206 | return 0; | |
1207 | ||
1208 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1209 | if (!t) | |
1210 | return 0; | |
1211 | ||
1212 | *found = t; | |
1213 | return 1; | |
1214 | } | |
1215 | ||
1216 | static int transfer_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
1217 | _cleanup_strv_free_ char **l = NULL; | |
1218 | Manager *m = userdata; | |
1219 | Transfer *t; | |
1220 | unsigned k = 0; | |
1221 | Iterator i; | |
1222 | ||
1223 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1224 | if (!l) | |
1225 | return -ENOMEM; | |
1226 | ||
1227 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1228 | ||
1229 | l[k] = strdup(t->object_path); | |
1230 | if (!l[k]) | |
1231 | return -ENOMEM; | |
1232 | ||
1233 | k++; | |
1234 | } | |
1235 | ||
1236 | *nodes = l; | |
1237 | l = NULL; | |
1238 | ||
1239 | return 1; | |
1240 | } | |
1241 | ||
1242 | static int manager_add_bus_objects(Manager *m) { | |
1243 | int r; | |
1244 | ||
1245 | assert(m); | |
1246 | ||
1247 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/import1", "org.freedesktop.import1.Manager", manager_vtable, m); | |
1248 | if (r < 0) | |
1249 | return log_error_errno(r, "Failed to register object: %m"); | |
1250 | ||
1251 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/import1/transfer", "org.freedesktop.import1.Transfer", transfer_vtable, transfer_object_find, m); | |
1252 | if (r < 0) | |
1253 | return log_error_errno(r, "Failed to register object: %m"); | |
1254 | ||
1255 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/import1/transfer", transfer_node_enumerator, m); | |
1256 | if (r < 0) | |
1257 | return log_error_errno(r, "Failed to add transfer enumerator: %m"); | |
1258 | ||
1259 | r = sd_bus_request_name(m->bus, "org.freedesktop.import1", 0); | |
1260 | if (r < 0) | |
1261 | return log_error_errno(r, "Failed to register name: %m"); | |
1262 | ||
1263 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1264 | if (r < 0) | |
1265 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1266 | ||
1267 | return 0; | |
1268 | } | |
1269 | ||
1270 | static bool manager_check_idle(void *userdata) { | |
1271 | Manager *m = userdata; | |
1272 | ||
1273 | return hashmap_isempty(m->transfers); | |
1274 | } | |
1275 | ||
1276 | static int manager_run(Manager *m) { | |
1277 | assert(m); | |
1278 | ||
1279 | return bus_event_loop_with_idle( | |
1280 | m->event, | |
1281 | m->bus, | |
1282 | "org.freedesktop.import1", | |
1283 | DEFAULT_EXIT_USEC, | |
1284 | manager_check_idle, | |
1285 | m); | |
1286 | } | |
1287 | ||
1288 | int main(int argc, char *argv[]) { | |
1289 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
1290 | int r; | |
1291 | ||
1292 | log_set_target(LOG_TARGET_AUTO); | |
1293 | log_parse_environment(); | |
1294 | log_open(); | |
1295 | ||
1296 | umask(0022); | |
1297 | ||
1298 | if (argc != 1) { | |
1299 | log_error("This program takes no arguments."); | |
1300 | r = -EINVAL; | |
1301 | goto finish; | |
1302 | } | |
1303 | ||
86f210e9 | 1304 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); |
e735f4d4 MP |
1305 | |
1306 | r = manager_new(&m); | |
1307 | if (r < 0) { | |
1308 | log_error_errno(r, "Failed to allocate manager object: %m"); | |
1309 | goto finish; | |
1310 | } | |
1311 | ||
1312 | r = manager_add_bus_objects(m); | |
1313 | if (r < 0) | |
1314 | goto finish; | |
1315 | ||
1316 | r = manager_run(m); | |
1317 | if (r < 0) { | |
1318 | log_error_errno(r, "Failed to run event loop: %m"); | |
1319 | goto finish; | |
1320 | } | |
1321 | ||
1322 | finish: | |
1323 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1324 | } |