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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 | |
b5efdb8a | 26 | #include "alloc-util.h" |
3d7415f4 | 27 | #include "bus-common-errors.h" |
3ffd4af2 | 28 | #include "bus-util.h" |
a97dcc12 | 29 | #include "def.h" |
3ffd4af2 LP |
30 | #include "fd-util.h" |
31 | #include "hostname-util.h" | |
32 | #include "import-util.h" | |
432cea00 | 33 | #include "machine-pool.h" |
3ffd4af2 LP |
34 | #include "missing.h" |
35 | #include "mkdir.h" | |
6bedfcbb | 36 | #include "parse-util.h" |
113b3fc1 | 37 | #include "path-util.h" |
0b452006 | 38 | #include "process-util.h" |
24882e06 | 39 | #include "signal-util.h" |
3ffd4af2 | 40 | #include "socket-util.h" |
8b43440b | 41 | #include "string-table.h" |
3ffd4af2 | 42 | #include "strv.h" |
7ccbd1ae | 43 | #include "syslog-util.h" |
ee104e11 | 44 | #include "user-util.h" |
3ffd4af2 | 45 | #include "util.h" |
49cf4170 | 46 | #include "web-util.h" |
3d7415f4 LP |
47 | |
48 | typedef struct Transfer Transfer; | |
49 | typedef struct Manager Manager; | |
50 | ||
51 | typedef enum TransferType { | |
b6e676ce LP |
52 | TRANSFER_IMPORT_TAR, |
53 | TRANSFER_IMPORT_RAW, | |
587fec42 LP |
54 | TRANSFER_EXPORT_TAR, |
55 | TRANSFER_EXPORT_RAW, | |
b6e676ce LP |
56 | TRANSFER_PULL_TAR, |
57 | TRANSFER_PULL_RAW, | |
58 | TRANSFER_PULL_DKR, | |
3d7415f4 LP |
59 | _TRANSFER_TYPE_MAX, |
60 | _TRANSFER_TYPE_INVALID = -1, | |
61 | } TransferType; | |
62 | ||
63 | struct Transfer { | |
64 | Manager *manager; | |
65 | ||
66 | uint32_t id; | |
67 | char *object_path; | |
68 | ||
69 | TransferType type; | |
70 | ImportVerify verify; | |
71 | ||
72 | char *remote; | |
73 | char *local; | |
74 | bool force_local; | |
b6e676ce | 75 | bool read_only; |
3d7415f4 LP |
76 | |
77 | char *dkr_index_url; | |
587fec42 | 78 | char *format; |
3d7415f4 LP |
79 | |
80 | pid_t pid; | |
81 | ||
82 | int log_fd; | |
83 | ||
84 | char log_message[LINE_MAX]; | |
85 | size_t log_message_size; | |
86 | ||
87 | sd_event_source *pid_event_source; | |
88 | sd_event_source *log_event_source; | |
89 | ||
90 | unsigned n_canceled; | |
7079cfef | 91 | unsigned progress_percent; |
b6e676ce LP |
92 | |
93 | int stdin_fd; | |
587fec42 | 94 | int stdout_fd; |
3d7415f4 LP |
95 | }; |
96 | ||
97 | struct Manager { | |
98 | sd_event *event; | |
99 | sd_bus *bus; | |
100 | ||
101 | uint32_t current_transfer_id; | |
102 | Hashmap *transfers; | |
103 | ||
104 | Hashmap *polkit_registry; | |
7079cfef LP |
105 | |
106 | int notify_fd; | |
107 | ||
108 | sd_event_source *notify_event_source; | |
3d7415f4 LP |
109 | }; |
110 | ||
111 | #define TRANSFERS_MAX 64 | |
112 | ||
113 | static const char* const transfer_type_table[_TRANSFER_TYPE_MAX] = { | |
b6e676ce LP |
114 | [TRANSFER_IMPORT_TAR] = "import-tar", |
115 | [TRANSFER_IMPORT_RAW] = "import-raw", | |
587fec42 LP |
116 | [TRANSFER_EXPORT_TAR] = "export-tar", |
117 | [TRANSFER_EXPORT_RAW] = "export-raw", | |
b6e676ce LP |
118 | [TRANSFER_PULL_TAR] = "pull-tar", |
119 | [TRANSFER_PULL_RAW] = "pull-raw", | |
120 | [TRANSFER_PULL_DKR] = "pull-dkr", | |
3d7415f4 LP |
121 | }; |
122 | ||
b9a5f858 | 123 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(transfer_type, TransferType); |
3d7415f4 LP |
124 | |
125 | static Transfer *transfer_unref(Transfer *t) { | |
126 | if (!t) | |
127 | return NULL; | |
128 | ||
129 | if (t->manager) | |
130 | hashmap_remove(t->manager->transfers, UINT32_TO_PTR(t->id)); | |
131 | ||
132 | sd_event_source_unref(t->pid_event_source); | |
133 | sd_event_source_unref(t->log_event_source); | |
134 | ||
135 | free(t->remote); | |
136 | free(t->local); | |
137 | free(t->dkr_index_url); | |
587fec42 | 138 | free(t->format); |
3d7415f4 LP |
139 | free(t->object_path); |
140 | ||
141 | if (t->pid > 0) { | |
142 | (void) kill_and_sigcont(t->pid, SIGKILL); | |
143 | (void) wait_for_terminate(t->pid, NULL); | |
144 | } | |
145 | ||
146 | safe_close(t->log_fd); | |
b6e676ce | 147 | safe_close(t->stdin_fd); |
587fec42 | 148 | safe_close(t->stdout_fd); |
3d7415f4 LP |
149 | |
150 | free(t); | |
151 | return NULL; | |
152 | } | |
153 | ||
154 | DEFINE_TRIVIAL_CLEANUP_FUNC(Transfer*, transfer_unref); | |
155 | ||
156 | static int transfer_new(Manager *m, Transfer **ret) { | |
157 | _cleanup_(transfer_unrefp) Transfer *t = NULL; | |
158 | uint32_t id; | |
159 | int r; | |
160 | ||
161 | assert(m); | |
162 | assert(ret); | |
163 | ||
164 | if (hashmap_size(m->transfers) >= TRANSFERS_MAX) | |
165 | return -E2BIG; | |
166 | ||
167 | r = hashmap_ensure_allocated(&m->transfers, &trivial_hash_ops); | |
168 | if (r < 0) | |
169 | return r; | |
170 | ||
171 | t = new0(Transfer, 1); | |
172 | if (!t) | |
173 | return -ENOMEM; | |
174 | ||
175 | t->type = _TRANSFER_TYPE_INVALID; | |
176 | t->log_fd = -1; | |
b6e676ce | 177 | t->stdin_fd = -1; |
3be78ab2 | 178 | t->stdout_fd = -1; |
b6e676ce | 179 | t->verify = _IMPORT_VERIFY_INVALID; |
3d7415f4 LP |
180 | |
181 | id = m->current_transfer_id + 1; | |
182 | ||
183 | if (asprintf(&t->object_path, "/org/freedesktop/import1/transfer/_%" PRIu32, id) < 0) | |
184 | return -ENOMEM; | |
185 | ||
186 | r = hashmap_put(m->transfers, UINT32_TO_PTR(id), t); | |
187 | if (r < 0) | |
188 | return r; | |
189 | ||
190 | m->current_transfer_id = id; | |
191 | ||
192 | t->manager = m; | |
193 | t->id = id; | |
194 | ||
195 | *ret = t; | |
196 | t = NULL; | |
197 | ||
198 | return 0; | |
199 | } | |
200 | ||
201 | static void transfer_send_log_line(Transfer *t, const char *line) { | |
202 | int r, priority = LOG_INFO; | |
203 | ||
204 | assert(t); | |
205 | assert(line); | |
206 | ||
207 | syslog_parse_priority(&line, &priority, true); | |
208 | ||
09d46cfd | 209 | log_full(priority, "(transfer%" PRIu32 ") %s", t->id, line); |
3d7415f4 LP |
210 | |
211 | r = sd_bus_emit_signal( | |
212 | t->manager->bus, | |
213 | t->object_path, | |
214 | "org.freedesktop.import1.Transfer", | |
215 | "LogMessage", | |
216 | "us", | |
217 | priority, | |
218 | line); | |
219 | if (r < 0) | |
220 | log_error_errno(r, "Cannot emit message: %m"); | |
221 | } | |
222 | ||
223 | static void transfer_send_logs(Transfer *t, bool flush) { | |
224 | assert(t); | |
225 | ||
226 | /* Try to send out all log messages, if we can. But if we | |
227 | * can't we remove the messages from the buffer, but don't | |
228 | * fail */ | |
229 | ||
230 | while (t->log_message_size > 0) { | |
231 | _cleanup_free_ char *n = NULL; | |
232 | char *e; | |
233 | ||
234 | if (t->log_message_size >= sizeof(t->log_message)) | |
235 | e = t->log_message + sizeof(t->log_message); | |
236 | else { | |
237 | char *a, *b; | |
238 | ||
239 | a = memchr(t->log_message, 0, t->log_message_size); | |
240 | b = memchr(t->log_message, '\n', t->log_message_size); | |
241 | ||
242 | if (a && b) | |
243 | e = a < b ? a : b; | |
244 | else if (a) | |
245 | e = a; | |
246 | else | |
247 | e = b; | |
248 | } | |
249 | ||
250 | if (!e) { | |
251 | if (!flush) | |
252 | return; | |
253 | ||
254 | e = t->log_message + t->log_message_size; | |
255 | } | |
256 | ||
257 | n = strndup(t->log_message, e - t->log_message); | |
258 | ||
259 | /* Skip over NUL and newlines */ | |
be3ce301 | 260 | while ((e < t->log_message + t->log_message_size) && (*e == 0 || *e == '\n')) |
3d7415f4 LP |
261 | e++; |
262 | ||
263 | memmove(t->log_message, e, t->log_message + sizeof(t->log_message) - e); | |
264 | t->log_message_size -= e - t->log_message; | |
265 | ||
266 | if (!n) { | |
267 | log_oom(); | |
268 | continue; | |
269 | } | |
270 | ||
271 | if (isempty(n)) | |
272 | continue; | |
273 | ||
274 | transfer_send_log_line(t, n); | |
275 | } | |
276 | } | |
277 | ||
278 | static int transfer_finalize(Transfer *t, bool success) { | |
279 | int r; | |
280 | ||
281 | assert(t); | |
282 | ||
283 | transfer_send_logs(t, true); | |
284 | ||
285 | r = sd_bus_emit_signal( | |
286 | t->manager->bus, | |
287 | "/org/freedesktop/import1", | |
288 | "org.freedesktop.import1.Manager", | |
289 | "TransferRemoved", | |
290 | "uos", | |
291 | t->id, | |
292 | t->object_path, | |
293 | success ? "done" : | |
294 | t->n_canceled > 0 ? "canceled" : "failed"); | |
295 | ||
296 | if (r < 0) | |
297 | log_error_errno(r, "Cannot emit message: %m"); | |
298 | ||
299 | transfer_unref(t); | |
300 | return 0; | |
301 | } | |
302 | ||
303 | static int transfer_cancel(Transfer *t) { | |
304 | int r; | |
305 | ||
306 | assert(t); | |
307 | ||
308 | r = kill_and_sigcont(t->pid, t->n_canceled < 3 ? SIGTERM : SIGKILL); | |
309 | if (r < 0) | |
310 | return r; | |
311 | ||
312 | t->n_canceled++; | |
313 | return 0; | |
314 | } | |
315 | ||
316 | static int transfer_on_pid(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
317 | Transfer *t = userdata; | |
318 | bool success = false; | |
319 | ||
320 | assert(s); | |
321 | assert(t); | |
322 | ||
323 | if (si->si_code == CLD_EXITED) { | |
324 | if (si->si_status != 0) | |
325 | log_error("Import process failed with exit code %i.", si->si_status); | |
326 | else { | |
327 | log_debug("Import process succeeded."); | |
328 | success = true; | |
329 | } | |
330 | ||
331 | } else if (si->si_code == CLD_KILLED || | |
332 | si->si_code == CLD_DUMPED) | |
333 | ||
334 | log_error("Import process terminated by signal %s.", signal_to_string(si->si_status)); | |
335 | else | |
336 | log_error("Import process failed due to unknown reason."); | |
337 | ||
338 | t->pid = 0; | |
339 | ||
340 | return transfer_finalize(t, success); | |
341 | } | |
342 | ||
343 | static int transfer_on_log(sd_event_source *s, int fd, uint32_t revents, void *userdata) { | |
344 | Transfer *t = userdata; | |
345 | ssize_t l; | |
346 | ||
347 | assert(s); | |
348 | assert(t); | |
349 | ||
350 | l = read(fd, t->log_message + t->log_message_size, sizeof(t->log_message) - t->log_message_size); | |
351 | if (l <= 0) { | |
352 | /* EOF/read error. We just close the pipe here, and | |
353 | * close the watch, waiting for the SIGCHLD to arrive, | |
354 | * before we do anything else. */ | |
355 | ||
356 | if (l < 0) | |
357 | log_error_errno(errno, "Failed to read log message: %m"); | |
358 | ||
359 | t->log_event_source = sd_event_source_unref(t->log_event_source); | |
360 | return 0; | |
361 | } | |
362 | ||
363 | t->log_message_size += l; | |
364 | ||
365 | transfer_send_logs(t, false); | |
366 | ||
367 | return 0; | |
368 | } | |
369 | ||
370 | static int transfer_start(Transfer *t) { | |
371 | _cleanup_close_pair_ int pipefd[2] = { -1, -1 }; | |
372 | int r; | |
373 | ||
374 | assert(t); | |
375 | assert(t->pid <= 0); | |
376 | ||
377 | if (pipe2(pipefd, O_CLOEXEC) < 0) | |
378 | return -errno; | |
379 | ||
380 | t->pid = fork(); | |
381 | if (t->pid < 0) | |
382 | return -errno; | |
383 | if (t->pid == 0) { | |
384 | const char *cmd[] = { | |
587fec42 | 385 | NULL, /* systemd-import, systemd-export or systemd-pull */ |
b6e676ce LP |
386 | NULL, /* tar, raw, dkr */ |
387 | NULL, /* --verify= */ | |
3d7415f4 LP |
388 | NULL, /* verify argument */ |
389 | NULL, /* maybe --force */ | |
b6e676ce | 390 | NULL, /* maybe --read-only */ |
3d7415f4 | 391 | NULL, /* maybe --dkr-index-url */ |
587fec42 LP |
392 | NULL, /* if so: the actual URL */ |
393 | NULL, /* maybe --format= */ | |
394 | NULL, /* if so: the actual format */ | |
3d7415f4 LP |
395 | NULL, /* remote */ |
396 | NULL, /* local */ | |
397 | NULL | |
398 | }; | |
b6e676ce | 399 | unsigned k = 0; |
3d7415f4 LP |
400 | |
401 | /* Child */ | |
402 | ||
ce30c8dc LP |
403 | (void) reset_all_signal_handlers(); |
404 | (void) reset_signal_mask(); | |
3d7415f4 LP |
405 | assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); |
406 | ||
407 | pipefd[0] = safe_close(pipefd[0]); | |
408 | ||
587fec42 | 409 | if (dup2(pipefd[1], STDERR_FILENO) != STDERR_FILENO) { |
3d7415f4 LP |
410 | log_error_errno(errno, "Failed to dup2() fd: %m"); |
411 | _exit(EXIT_FAILURE); | |
412 | } | |
413 | ||
587fec42 LP |
414 | if (t->stdout_fd >= 0) { |
415 | if (dup2(t->stdout_fd, STDOUT_FILENO) != STDOUT_FILENO) { | |
416 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
417 | _exit(EXIT_FAILURE); | |
418 | } | |
419 | ||
420 | if (t->stdout_fd != STDOUT_FILENO) | |
421 | safe_close(t->stdout_fd); | |
422 | } else { | |
423 | if (dup2(pipefd[1], STDOUT_FILENO) != STDOUT_FILENO) { | |
424 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
425 | _exit(EXIT_FAILURE); | |
426 | } | |
3d7415f4 LP |
427 | } |
428 | ||
429 | if (pipefd[1] != STDOUT_FILENO && pipefd[1] != STDERR_FILENO) | |
430 | pipefd[1] = safe_close(pipefd[1]); | |
431 | ||
b6e676ce LP |
432 | if (t->stdin_fd >= 0) { |
433 | if (dup2(t->stdin_fd, STDIN_FILENO) != STDIN_FILENO) { | |
434 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
435 | _exit(EXIT_FAILURE); | |
436 | } | |
437 | ||
438 | if (t->stdin_fd != STDIN_FILENO) | |
439 | safe_close(t->stdin_fd); | |
440 | } else { | |
441 | int null_fd; | |
442 | ||
443 | null_fd = open("/dev/null", O_RDONLY|O_NOCTTY); | |
444 | if (null_fd < 0) { | |
445 | log_error_errno(errno, "Failed to open /dev/null: %m"); | |
446 | _exit(EXIT_FAILURE); | |
447 | } | |
448 | ||
449 | if (dup2(null_fd, STDIN_FILENO) != STDIN_FILENO) { | |
450 | log_error_errno(errno, "Failed to dup2() fd: %m"); | |
451 | _exit(EXIT_FAILURE); | |
452 | } | |
453 | ||
454 | if (null_fd != STDIN_FILENO) | |
455 | safe_close(null_fd); | |
3d7415f4 LP |
456 | } |
457 | ||
3d7415f4 LP |
458 | fd_cloexec(STDIN_FILENO, false); |
459 | fd_cloexec(STDOUT_FILENO, false); | |
460 | fd_cloexec(STDERR_FILENO, false); | |
461 | ||
7079cfef LP |
462 | setenv("SYSTEMD_LOG_TARGET", "console-prefixed", 1); |
463 | setenv("NOTIFY_SOCKET", "/run/systemd/import/notify", 1); | |
3d7415f4 | 464 | |
b6e676ce LP |
465 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_IMPORT_RAW)) |
466 | cmd[k++] = SYSTEMD_IMPORT_PATH; | |
587fec42 LP |
467 | else if (IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) |
468 | cmd[k++] = SYSTEMD_EXPORT_PATH; | |
b6e676ce LP |
469 | else |
470 | cmd[k++] = SYSTEMD_PULL_PATH; | |
471 | ||
587fec42 | 472 | if (IN_SET(t->type, TRANSFER_IMPORT_TAR, TRANSFER_EXPORT_TAR, TRANSFER_PULL_TAR)) |
b6e676ce | 473 | cmd[k++] = "tar"; |
587fec42 | 474 | else if (IN_SET(t->type, TRANSFER_IMPORT_RAW, TRANSFER_EXPORT_RAW, TRANSFER_PULL_RAW)) |
b6e676ce LP |
475 | cmd[k++] = "raw"; |
476 | else | |
477 | cmd[k++] = "dkr"; | |
478 | ||
479 | if (t->verify != _IMPORT_VERIFY_INVALID) { | |
480 | cmd[k++] = "--verify"; | |
481 | cmd[k++] = import_verify_to_string(t->verify); | |
482 | } | |
483 | ||
3d7415f4 LP |
484 | if (t->force_local) |
485 | cmd[k++] = "--force"; | |
b6e676ce LP |
486 | if (t->read_only) |
487 | cmd[k++] = "--read-only"; | |
3d7415f4 LP |
488 | |
489 | if (t->dkr_index_url) { | |
490 | cmd[k++] = "--dkr-index-url"; | |
491 | cmd[k++] = t->dkr_index_url; | |
492 | } | |
493 | ||
587fec42 LP |
494 | if (t->format) { |
495 | cmd[k++] = "--format"; | |
496 | cmd[k++] = t->format; | |
497 | } | |
498 | ||
499 | if (!IN_SET(t->type, TRANSFER_EXPORT_TAR, TRANSFER_EXPORT_RAW)) { | |
500 | if (t->remote) | |
501 | cmd[k++] = t->remote; | |
502 | else | |
503 | cmd[k++] = "-"; | |
504 | } | |
b6e676ce | 505 | |
3d7415f4 LP |
506 | if (t->local) |
507 | cmd[k++] = t->local; | |
508 | cmd[k] = NULL; | |
509 | ||
b6e676ce LP |
510 | execv(cmd[0], (char * const *) cmd); |
511 | log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]); | |
3d7415f4 LP |
512 | _exit(EXIT_FAILURE); |
513 | } | |
514 | ||
515 | pipefd[1] = safe_close(pipefd[1]); | |
516 | t->log_fd = pipefd[0]; | |
517 | pipefd[0] = -1; | |
518 | ||
b6e676ce LP |
519 | t->stdin_fd = safe_close(t->stdin_fd); |
520 | ||
3d7415f4 LP |
521 | r = sd_event_add_child(t->manager->event, &t->pid_event_source, t->pid, WEXITED, transfer_on_pid, t); |
522 | if (r < 0) | |
523 | return r; | |
524 | ||
525 | r = sd_event_add_io(t->manager->event, &t->log_event_source, t->log_fd, EPOLLIN, transfer_on_log, t); | |
526 | if (r < 0) | |
527 | return r; | |
528 | ||
529 | /* Make sure always process logging before SIGCHLD */ | |
530 | r = sd_event_source_set_priority(t->log_event_source, SD_EVENT_PRIORITY_NORMAL -5); | |
531 | if (r < 0) | |
532 | return r; | |
533 | ||
534 | r = sd_bus_emit_signal( | |
535 | t->manager->bus, | |
536 | "/org/freedesktop/import1", | |
537 | "org.freedesktop.import1.Manager", | |
538 | "TransferNew", | |
539 | "uo", | |
540 | t->id, | |
541 | t->object_path); | |
542 | if (r < 0) | |
543 | return r; | |
544 | ||
545 | return 0; | |
546 | } | |
547 | ||
548 | static Manager *manager_unref(Manager *m) { | |
549 | Transfer *t; | |
550 | ||
551 | if (!m) | |
552 | return NULL; | |
553 | ||
7079cfef LP |
554 | sd_event_source_unref(m->notify_event_source); |
555 | safe_close(m->notify_fd); | |
556 | ||
3d7415f4 LP |
557 | while ((t = hashmap_first(m->transfers))) |
558 | transfer_unref(t); | |
559 | ||
560 | hashmap_free(m->transfers); | |
561 | ||
562 | bus_verify_polkit_async_registry_free(m->polkit_registry); | |
563 | ||
03976f7b | 564 | m->bus = sd_bus_flush_close_unref(m->bus); |
3d7415f4 LP |
565 | sd_event_unref(m->event); |
566 | ||
567 | free(m); | |
568 | return NULL; | |
569 | } | |
570 | ||
571 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
572 | ||
7079cfef LP |
573 | static int manager_on_notify(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
574 | ||
575 | char buf[NOTIFY_BUFFER_MAX+1]; | |
576 | struct iovec iovec = { | |
577 | .iov_base = buf, | |
578 | .iov_len = sizeof(buf)-1, | |
579 | }; | |
580 | union { | |
581 | struct cmsghdr cmsghdr; | |
582 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
583 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
584 | } control = {}; | |
585 | struct msghdr msghdr = { | |
586 | .msg_iov = &iovec, | |
587 | .msg_iovlen = 1, | |
588 | .msg_control = &control, | |
589 | .msg_controllen = sizeof(control), | |
590 | }; | |
591 | struct ucred *ucred = NULL; | |
592 | Manager *m = userdata; | |
593 | struct cmsghdr *cmsg; | |
594 | unsigned percent; | |
595 | char *p, *e; | |
596 | Transfer *t; | |
597 | Iterator i; | |
598 | ssize_t n; | |
599 | int r; | |
600 | ||
601 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); | |
602 | if (n < 0) { | |
603 | if (errno == EAGAIN || errno == EINTR) | |
604 | return 0; | |
605 | ||
606 | return -errno; | |
607 | } | |
608 | ||
1c8da044 LP |
609 | cmsg_close_all(&msghdr); |
610 | ||
3ee897d6 LP |
611 | CMSG_FOREACH(cmsg, &msghdr) |
612 | if (cmsg->cmsg_level == SOL_SOCKET && | |
613 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
614 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) | |
7079cfef | 615 | ucred = (struct ucred*) CMSG_DATA(cmsg); |
7079cfef LP |
616 | |
617 | if (msghdr.msg_flags & MSG_TRUNC) { | |
618 | log_warning("Got overly long notification datagram, ignoring."); | |
619 | return 0; | |
620 | } | |
621 | ||
622 | if (!ucred || ucred->pid <= 0) { | |
623 | log_warning("Got notification datagram lacking credential information, ignoring."); | |
624 | return 0; | |
625 | } | |
626 | ||
627 | HASHMAP_FOREACH(t, m->transfers, i) | |
628 | if (ucred->pid == t->pid) | |
629 | break; | |
630 | ||
631 | if (!t) { | |
632 | log_warning("Got notification datagram from unexpected peer, ignoring."); | |
633 | return 0; | |
634 | } | |
635 | ||
636 | buf[n] = 0; | |
637 | ||
638 | p = startswith(buf, "X_IMPORT_PROGRESS="); | |
639 | if (!p) { | |
640 | p = strstr(buf, "\nX_IMPORT_PROGRESS="); | |
641 | if (!p) | |
642 | return 0; | |
643 | ||
644 | p += 19; | |
645 | } | |
646 | ||
647 | e = strchrnul(p, '\n'); | |
648 | *e = 0; | |
649 | ||
650 | r = safe_atou(p, &percent); | |
651 | if (r < 0 || percent > 100) { | |
652 | log_warning("Got invalid percent value, ignoring."); | |
653 | return 0; | |
654 | } | |
655 | ||
656 | t->progress_percent = percent; | |
657 | ||
658 | log_debug("Got percentage from client: %u%%", percent); | |
659 | return 0; | |
660 | } | |
661 | ||
3d7415f4 LP |
662 | static int manager_new(Manager **ret) { |
663 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
7079cfef LP |
664 | static const union sockaddr_union sa = { |
665 | .un.sun_family = AF_UNIX, | |
666 | .un.sun_path = "/run/systemd/import/notify", | |
667 | }; | |
668 | static const int one = 1; | |
3d7415f4 LP |
669 | int r; |
670 | ||
671 | assert(ret); | |
672 | ||
673 | m = new0(Manager, 1); | |
674 | if (!m) | |
675 | return -ENOMEM; | |
676 | ||
677 | r = sd_event_default(&m->event); | |
678 | if (r < 0) | |
679 | return r; | |
680 | ||
681 | sd_event_set_watchdog(m->event, true); | |
682 | ||
683 | r = sd_bus_default_system(&m->bus); | |
684 | if (r < 0) | |
685 | return r; | |
686 | ||
7079cfef LP |
687 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
688 | if (m->notify_fd < 0) | |
689 | return -errno; | |
690 | ||
691 | (void) mkdir_parents_label(sa.un.sun_path, 0755); | |
692 | (void) unlink(sa.un.sun_path); | |
693 | ||
694 | if (bind(m->notify_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0) | |
695 | return -errno; | |
696 | ||
697 | if (setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) | |
698 | return -errno; | |
699 | ||
700 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_on_notify, m); | |
701 | if (r < 0) | |
702 | return r; | |
703 | ||
3d7415f4 LP |
704 | *ret = m; |
705 | m = NULL; | |
706 | ||
707 | return 0; | |
708 | } | |
709 | ||
710 | static Transfer *manager_find(Manager *m, TransferType type, const char *dkr_index_url, const char *remote) { | |
711 | Transfer *t; | |
712 | Iterator i; | |
713 | ||
714 | assert(m); | |
715 | assert(type >= 0); | |
716 | assert(type < _TRANSFER_TYPE_MAX); | |
717 | ||
718 | HASHMAP_FOREACH(t, m->transfers, i) { | |
719 | ||
720 | if (t->type == type && | |
721 | streq_ptr(t->remote, remote) && | |
722 | streq_ptr(t->dkr_index_url, dkr_index_url)) | |
723 | return t; | |
724 | } | |
725 | ||
726 | return NULL; | |
727 | } | |
728 | ||
19070062 | 729 | static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
b6e676ce LP |
730 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
731 | int fd, force, read_only, r; | |
732 | const char *local, *object; | |
733 | Manager *m = userdata; | |
734 | TransferType type; | |
735 | uint32_t id; | |
736 | ||
19070062 LP |
737 | assert(msg); |
738 | assert(m); | |
739 | ||
b6e676ce LP |
740 | r = bus_verify_polkit_async( |
741 | msg, | |
742 | CAP_SYS_ADMIN, | |
743 | "org.freedesktop.import1.import", | |
403ed0e5 | 744 | NULL, |
b6e676ce LP |
745 | false, |
746 | UID_INVALID, | |
747 | &m->polkit_registry, | |
748 | error); | |
749 | if (r < 0) | |
750 | return r; | |
751 | if (r == 0) | |
752 | return 1; /* Will call us back */ | |
753 | ||
754 | r = sd_bus_message_read(msg, "hsbb", &fd, &local, &force, &read_only); | |
755 | if (r < 0) | |
756 | return r; | |
757 | ||
758 | if (!machine_name_is_valid(local)) | |
759 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
760 | ||
761 | r = setup_machine_directory((uint64_t) -1, error); | |
762 | if (r < 0) | |
763 | return r; | |
764 | ||
765 | type = streq_ptr(sd_bus_message_get_member(msg), "ImportTar") ? TRANSFER_IMPORT_TAR : TRANSFER_IMPORT_RAW; | |
766 | ||
767 | r = transfer_new(m, &t); | |
768 | if (r < 0) | |
769 | return r; | |
770 | ||
771 | t->type = type; | |
772 | t->force_local = force; | |
773 | t->read_only = read_only; | |
774 | ||
775 | t->local = strdup(local); | |
776 | if (!t->local) | |
777 | return -ENOMEM; | |
778 | ||
779 | t->stdin_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
780 | if (t->stdin_fd < 0) | |
781 | return -errno; | |
782 | ||
783 | r = transfer_start(t); | |
784 | if (r < 0) | |
785 | return r; | |
786 | ||
787 | object = t->object_path; | |
788 | id = t->id; | |
789 | t = NULL; | |
790 | ||
791 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
792 | } | |
793 | ||
19070062 | 794 | static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
587fec42 LP |
795 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
796 | int fd, r; | |
797 | const char *local, *object, *format; | |
798 | Manager *m = userdata; | |
799 | TransferType type; | |
800 | uint32_t id; | |
801 | ||
19070062 LP |
802 | assert(msg); |
803 | assert(m); | |
804 | ||
587fec42 LP |
805 | r = bus_verify_polkit_async( |
806 | msg, | |
807 | CAP_SYS_ADMIN, | |
808 | "org.freedesktop.import1.export", | |
403ed0e5 | 809 | NULL, |
587fec42 LP |
810 | false, |
811 | UID_INVALID, | |
812 | &m->polkit_registry, | |
813 | error); | |
814 | if (r < 0) | |
815 | return r; | |
816 | if (r == 0) | |
817 | return 1; /* Will call us back */ | |
818 | ||
819 | r = sd_bus_message_read(msg, "shs", &local, &fd, &format); | |
820 | if (r < 0) | |
821 | return r; | |
822 | ||
823 | if (!machine_name_is_valid(local)) | |
824 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
825 | ||
826 | type = streq_ptr(sd_bus_message_get_member(msg), "ExportTar") ? TRANSFER_EXPORT_TAR : TRANSFER_EXPORT_RAW; | |
827 | ||
828 | r = transfer_new(m, &t); | |
829 | if (r < 0) | |
830 | return r; | |
831 | ||
832 | t->type = type; | |
833 | ||
834 | if (!isempty(format)) { | |
835 | t->format = strdup(format); | |
836 | if (!t->format) | |
837 | return -ENOMEM; | |
838 | } | |
839 | ||
840 | t->local = strdup(local); | |
841 | if (!t->local) | |
842 | return -ENOMEM; | |
843 | ||
844 | t->stdout_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
845 | if (t->stdout_fd < 0) | |
846 | return -errno; | |
847 | ||
848 | r = transfer_start(t); | |
849 | if (r < 0) | |
850 | return r; | |
851 | ||
852 | object = t->object_path; | |
853 | id = t->id; | |
854 | t = NULL; | |
855 | ||
856 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
857 | } | |
858 | ||
19070062 | 859 | static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
860 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
861 | const char *remote, *local, *verify, *object; | |
862 | Manager *m = userdata; | |
863 | ImportVerify v; | |
864 | TransferType type; | |
865 | int force, r; | |
866 | uint32_t id; | |
867 | ||
3d7415f4 LP |
868 | assert(msg); |
869 | assert(m); | |
870 | ||
871 | r = bus_verify_polkit_async( | |
872 | msg, | |
873 | CAP_SYS_ADMIN, | |
874 | "org.freedesktop.import1.pull", | |
403ed0e5 | 875 | NULL, |
3d7415f4 | 876 | false, |
c529695e | 877 | UID_INVALID, |
3d7415f4 LP |
878 | &m->polkit_registry, |
879 | error); | |
880 | if (r < 0) | |
881 | return r; | |
882 | if (r == 0) | |
883 | return 1; /* Will call us back */ | |
884 | ||
885 | r = sd_bus_message_read(msg, "sssb", &remote, &local, &verify, &force); | |
886 | if (r < 0) | |
887 | return r; | |
888 | ||
889 | if (!http_url_is_valid(remote)) | |
890 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "URL %s is invalid", remote); | |
891 | ||
892 | if (isempty(local)) | |
893 | local = NULL; | |
894 | else if (!machine_name_is_valid(local)) | |
895 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
896 | ||
897 | if (isempty(verify)) | |
898 | v = IMPORT_VERIFY_SIGNATURE; | |
899 | else | |
900 | v = import_verify_from_string(verify); | |
901 | if (v < 0) | |
902 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
903 | ||
4cee5eed | 904 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
905 | if (r < 0) |
906 | return r; | |
907 | ||
b6e676ce | 908 | type = streq_ptr(sd_bus_message_get_member(msg), "PullTar") ? TRANSFER_PULL_TAR : TRANSFER_PULL_RAW; |
3d7415f4 LP |
909 | |
910 | if (manager_find(m, type, NULL, remote)) | |
911 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); | |
912 | ||
913 | r = transfer_new(m, &t); | |
914 | if (r < 0) | |
915 | return r; | |
916 | ||
917 | t->type = type; | |
918 | t->verify = v; | |
919 | t->force_local = force; | |
920 | ||
921 | t->remote = strdup(remote); | |
922 | if (!t->remote) | |
923 | return -ENOMEM; | |
924 | ||
b6e676ce LP |
925 | if (local) { |
926 | t->local = strdup(local); | |
927 | if (!t->local) | |
928 | return -ENOMEM; | |
929 | } | |
3d7415f4 LP |
930 | |
931 | r = transfer_start(t); | |
932 | if (r < 0) | |
933 | return r; | |
934 | ||
935 | object = t->object_path; | |
936 | id = t->id; | |
937 | t = NULL; | |
938 | ||
939 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
940 | } | |
941 | ||
19070062 | 942 | static int method_pull_dkr(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
943 | _cleanup_(transfer_unrefp) Transfer *t = NULL; |
944 | const char *index_url, *remote, *tag, *local, *verify, *object; | |
945 | Manager *m = userdata; | |
946 | ImportVerify v; | |
947 | int force, r; | |
948 | uint32_t id; | |
949 | ||
3d7415f4 LP |
950 | assert(msg); |
951 | assert(m); | |
952 | ||
953 | r = bus_verify_polkit_async( | |
954 | msg, | |
955 | CAP_SYS_ADMIN, | |
956 | "org.freedesktop.import1.pull", | |
403ed0e5 | 957 | NULL, |
3d7415f4 | 958 | false, |
c529695e | 959 | UID_INVALID, |
3d7415f4 LP |
960 | &m->polkit_registry, |
961 | error); | |
962 | if (r < 0) | |
963 | return r; | |
964 | if (r == 0) | |
965 | return 1; /* Will call us back */ | |
966 | ||
967 | r = sd_bus_message_read(msg, "sssssb", &index_url, &remote, &tag, &local, &verify, &force); | |
968 | if (r < 0) | |
969 | return r; | |
970 | ||
971 | if (isempty(index_url)) | |
972 | index_url = DEFAULT_DKR_INDEX_URL; | |
973 | if (!index_url) | |
974 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL must be specified."); | |
975 | if (!http_url_is_valid(index_url)) | |
976 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Index URL %s is invalid", index_url); | |
977 | ||
978 | if (!dkr_name_is_valid(remote)) | |
979 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Remote name %s is not valid", remote); | |
980 | ||
981 | if (isempty(tag)) | |
982 | tag = "latest"; | |
983 | else if (!dkr_tag_is_valid(tag)) | |
984 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Tag %s is not valid", tag); | |
985 | ||
986 | if (isempty(local)) | |
987 | local = NULL; | |
988 | else if (!machine_name_is_valid(local)) | |
989 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Local name %s is invalid", local); | |
990 | ||
991 | if (isempty(verify)) | |
992 | v = IMPORT_VERIFY_SIGNATURE; | |
993 | else | |
994 | v = import_verify_from_string(verify); | |
995 | if (v < 0) | |
996 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown verification mode %s", verify); | |
997 | ||
998 | if (v != IMPORT_VERIFY_NO) | |
999 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "DKR does not support verification."); | |
1000 | ||
4cee5eed | 1001 | r = setup_machine_directory((uint64_t) -1, error); |
ce06fdfb LP |
1002 | if (r < 0) |
1003 | return r; | |
1004 | ||
b6e676ce | 1005 | if (manager_find(m, TRANSFER_PULL_DKR, index_url, remote)) |
3d7415f4 LP |
1006 | return sd_bus_error_setf(error, BUS_ERROR_TRANSFER_IN_PROGRESS, "Transfer for %s already in progress.", remote); |
1007 | ||
1008 | r = transfer_new(m, &t); | |
1009 | if (r < 0) | |
1010 | return r; | |
1011 | ||
b6e676ce | 1012 | t->type = TRANSFER_PULL_DKR; |
3d7415f4 LP |
1013 | t->verify = v; |
1014 | t->force_local = force; | |
1015 | ||
1016 | t->dkr_index_url = strdup(index_url); | |
1017 | if (!t->dkr_index_url) | |
1018 | return -ENOMEM; | |
1019 | ||
1020 | t->remote = strjoin(remote, ":", tag, NULL); | |
1021 | if (!t->remote) | |
1022 | return -ENOMEM; | |
1023 | ||
b6e676ce LP |
1024 | if (local) { |
1025 | t->local = strdup(local); | |
1026 | if (!t->local) | |
1027 | return -ENOMEM; | |
1028 | } | |
3d7415f4 LP |
1029 | |
1030 | r = transfer_start(t); | |
1031 | if (r < 0) | |
1032 | return r; | |
1033 | ||
1034 | object = t->object_path; | |
1035 | id = t->id; | |
1036 | t = NULL; | |
1037 | ||
1038 | return sd_bus_reply_method_return(msg, "uo", id, object); | |
1039 | } | |
1040 | ||
19070062 | 1041 | static int method_list_transfers(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1042 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
1043 | Manager *m = userdata; | |
1044 | Transfer *t; | |
1045 | Iterator i; | |
1046 | int r; | |
1047 | ||
3d7415f4 LP |
1048 | assert(msg); |
1049 | assert(m); | |
1050 | ||
1051 | r = sd_bus_message_new_method_return(msg, &reply); | |
1052 | if (r < 0) | |
1053 | return r; | |
1054 | ||
7079cfef | 1055 | r = sd_bus_message_open_container(reply, 'a', "(usssdo)"); |
3d7415f4 LP |
1056 | if (r < 0) |
1057 | return r; | |
1058 | ||
1059 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1060 | ||
1061 | r = sd_bus_message_append( | |
1062 | reply, | |
7079cfef | 1063 | "(usssdo)", |
3d7415f4 LP |
1064 | t->id, |
1065 | transfer_type_to_string(t->type), | |
1066 | t->remote, | |
1067 | t->local, | |
7079cfef | 1068 | (double) t->progress_percent / 100.0, |
3d7415f4 LP |
1069 | t->object_path); |
1070 | if (r < 0) | |
1071 | return r; | |
1072 | } | |
1073 | ||
1074 | r = sd_bus_message_close_container(reply); | |
1075 | if (r < 0) | |
1076 | return r; | |
1077 | ||
9030ca46 | 1078 | return sd_bus_send(NULL, reply, NULL); |
3d7415f4 LP |
1079 | } |
1080 | ||
19070062 | 1081 | static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1082 | Transfer *t = userdata; |
1083 | int r; | |
1084 | ||
3d7415f4 LP |
1085 | assert(msg); |
1086 | assert(t); | |
1087 | ||
1088 | r = bus_verify_polkit_async( | |
1089 | msg, | |
1090 | CAP_SYS_ADMIN, | |
1091 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1092 | NULL, |
3d7415f4 | 1093 | false, |
c529695e | 1094 | UID_INVALID, |
3d7415f4 LP |
1095 | &t->manager->polkit_registry, |
1096 | error); | |
1097 | if (r < 0) | |
1098 | return r; | |
1099 | if (r == 0) | |
1100 | return 1; /* Will call us back */ | |
1101 | ||
1102 | r = transfer_cancel(t); | |
1103 | if (r < 0) | |
1104 | return r; | |
1105 | ||
1106 | return sd_bus_reply_method_return(msg, NULL); | |
1107 | } | |
1108 | ||
19070062 | 1109 | static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_error *error) { |
3d7415f4 LP |
1110 | Manager *m = userdata; |
1111 | Transfer *t; | |
1112 | uint32_t id; | |
1113 | int r; | |
1114 | ||
3d7415f4 LP |
1115 | assert(msg); |
1116 | assert(m); | |
1117 | ||
1118 | r = bus_verify_polkit_async( | |
1119 | msg, | |
1120 | CAP_SYS_ADMIN, | |
1121 | "org.freedesktop.import1.pull", | |
403ed0e5 | 1122 | NULL, |
3d7415f4 | 1123 | false, |
c529695e | 1124 | UID_INVALID, |
3d7415f4 LP |
1125 | &m->polkit_registry, |
1126 | error); | |
1127 | if (r < 0) | |
1128 | return r; | |
1129 | if (r == 0) | |
1130 | return 1; /* Will call us back */ | |
1131 | ||
1132 | r = sd_bus_message_read(msg, "u", &id); | |
1133 | if (r < 0) | |
1134 | return r; | |
1135 | if (id <= 0) | |
1136 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid transfer id"); | |
1137 | ||
1138 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1139 | if (!t) | |
09d46cfd | 1140 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_TRANSFER, "No transfer by id %" PRIu32, id); |
3d7415f4 LP |
1141 | |
1142 | r = transfer_cancel(t); | |
1143 | if (r < 0) | |
1144 | return r; | |
1145 | ||
1146 | return sd_bus_reply_method_return(msg, NULL); | |
1147 | } | |
1148 | ||
7079cfef LP |
1149 | static int property_get_progress( |
1150 | sd_bus *bus, | |
1151 | const char *path, | |
1152 | const char *interface, | |
1153 | const char *property, | |
1154 | sd_bus_message *reply, | |
1155 | void *userdata, | |
1156 | sd_bus_error *error) { | |
1157 | ||
1158 | Transfer *t = userdata; | |
1159 | ||
1160 | assert(bus); | |
1161 | assert(reply); | |
1162 | assert(t); | |
1163 | ||
1164 | return sd_bus_message_append(reply, "d", (double) t->progress_percent / 100.0); | |
1165 | } | |
1166 | ||
3d7415f4 LP |
1167 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, transfer_type, TransferType); |
1168 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_verify, import_verify, ImportVerify); | |
1169 | ||
1170 | static const sd_bus_vtable transfer_vtable[] = { | |
1171 | SD_BUS_VTABLE_START(0), | |
1172 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Transfer, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
1173 | SD_BUS_PROPERTY("Local", "s", NULL, offsetof(Transfer, local), SD_BUS_VTABLE_PROPERTY_CONST), | |
1174 | SD_BUS_PROPERTY("Remote", "s", NULL, offsetof(Transfer, remote), SD_BUS_VTABLE_PROPERTY_CONST), | |
1175 | SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Transfer, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
1176 | SD_BUS_PROPERTY("Verify", "s", property_get_verify, offsetof(Transfer, verify), SD_BUS_VTABLE_PROPERTY_CONST), | |
7079cfef | 1177 | SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0), |
3d7415f4 LP |
1178 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
1179 | SD_BUS_SIGNAL("LogMessage", "us", 0), | |
1180 | SD_BUS_VTABLE_END, | |
1181 | }; | |
1182 | ||
1183 | static const sd_bus_vtable manager_vtable[] = { | |
1184 | SD_BUS_VTABLE_START(0), | |
b6e676ce LP |
1185 | SD_BUS_METHOD("ImportTar", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1186 | SD_BUS_METHOD("ImportRaw", "hsbb", "uo", method_import_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
587fec42 LP |
1187 | SD_BUS_METHOD("ExportTar", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1188 | SD_BUS_METHOD("ExportRaw", "shs", "uo", method_export_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
3d7415f4 LP |
1189 | SD_BUS_METHOD("PullTar", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), |
1190 | SD_BUS_METHOD("PullRaw", "sssb", "uo", method_pull_tar_or_raw, SD_BUS_VTABLE_UNPRIVILEGED), | |
1191 | SD_BUS_METHOD("PullDkr", "sssssb", "uo", method_pull_dkr, SD_BUS_VTABLE_UNPRIVILEGED), | |
7079cfef | 1192 | SD_BUS_METHOD("ListTransfers", NULL, "a(usssdo)", method_list_transfers, SD_BUS_VTABLE_UNPRIVILEGED), |
3d7415f4 LP |
1193 | SD_BUS_METHOD("CancelTransfer", "u", NULL, method_cancel_transfer, SD_BUS_VTABLE_UNPRIVILEGED), |
1194 | SD_BUS_SIGNAL("TransferNew", "uo", 0), | |
1195 | SD_BUS_SIGNAL("TransferRemoved", "uos", 0), | |
1196 | SD_BUS_VTABLE_END, | |
1197 | }; | |
1198 | ||
1199 | static int transfer_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
1200 | Manager *m = userdata; | |
1201 | Transfer *t; | |
1202 | const char *p; | |
1203 | uint32_t id; | |
1204 | int r; | |
1205 | ||
1206 | assert(bus); | |
1207 | assert(path); | |
1208 | assert(interface); | |
1209 | assert(found); | |
1210 | assert(m); | |
1211 | ||
1212 | p = startswith(path, "/org/freedesktop/import1/transfer/_"); | |
1213 | if (!p) | |
1214 | return 0; | |
1215 | ||
1216 | r = safe_atou32(p, &id); | |
1217 | if (r < 0 || id == 0) | |
1218 | return 0; | |
1219 | ||
1220 | t = hashmap_get(m->transfers, UINT32_TO_PTR(id)); | |
1221 | if (!t) | |
1222 | return 0; | |
1223 | ||
1224 | *found = t; | |
1225 | return 1; | |
1226 | } | |
1227 | ||
1228 | static int transfer_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
1229 | _cleanup_strv_free_ char **l = NULL; | |
1230 | Manager *m = userdata; | |
1231 | Transfer *t; | |
1232 | unsigned k = 0; | |
1233 | Iterator i; | |
1234 | ||
1235 | l = new0(char*, hashmap_size(m->transfers) + 1); | |
1236 | if (!l) | |
1237 | return -ENOMEM; | |
1238 | ||
1239 | HASHMAP_FOREACH(t, m->transfers, i) { | |
1240 | ||
1241 | l[k] = strdup(t->object_path); | |
1242 | if (!l[k]) | |
1243 | return -ENOMEM; | |
1244 | ||
1245 | k++; | |
1246 | } | |
1247 | ||
1248 | *nodes = l; | |
1249 | l = NULL; | |
1250 | ||
1251 | return 1; | |
1252 | } | |
1253 | ||
1254 | static int manager_add_bus_objects(Manager *m) { | |
1255 | int r; | |
1256 | ||
1257 | assert(m); | |
1258 | ||
1259 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/import1", "org.freedesktop.import1.Manager", manager_vtable, m); | |
1260 | if (r < 0) | |
1261 | return log_error_errno(r, "Failed to register object: %m"); | |
1262 | ||
1263 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/import1/transfer", "org.freedesktop.import1.Transfer", transfer_vtable, transfer_object_find, m); | |
1264 | if (r < 0) | |
1265 | return log_error_errno(r, "Failed to register object: %m"); | |
1266 | ||
1267 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/import1/transfer", transfer_node_enumerator, m); | |
1268 | if (r < 0) | |
1269 | return log_error_errno(r, "Failed to add transfer enumerator: %m"); | |
1270 | ||
1271 | r = sd_bus_request_name(m->bus, "org.freedesktop.import1", 0); | |
1272 | if (r < 0) | |
1273 | return log_error_errno(r, "Failed to register name: %m"); | |
1274 | ||
1275 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
1276 | if (r < 0) | |
1277 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
1278 | ||
1279 | return 0; | |
1280 | } | |
1281 | ||
1282 | static bool manager_check_idle(void *userdata) { | |
1283 | Manager *m = userdata; | |
1284 | ||
1285 | return hashmap_isempty(m->transfers); | |
1286 | } | |
1287 | ||
1288 | static int manager_run(Manager *m) { | |
1289 | assert(m); | |
1290 | ||
1291 | return bus_event_loop_with_idle( | |
1292 | m->event, | |
1293 | m->bus, | |
1294 | "org.freedesktop.import1", | |
1295 | DEFAULT_EXIT_USEC, | |
1296 | manager_check_idle, | |
1297 | m); | |
1298 | } | |
1299 | ||
1300 | int main(int argc, char *argv[]) { | |
1301 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
1302 | int r; | |
1303 | ||
1304 | log_set_target(LOG_TARGET_AUTO); | |
1305 | log_parse_environment(); | |
1306 | log_open(); | |
1307 | ||
1308 | umask(0022); | |
1309 | ||
1310 | if (argc != 1) { | |
1311 | log_error("This program takes no arguments."); | |
1312 | r = -EINVAL; | |
1313 | goto finish; | |
1314 | } | |
1315 | ||
72c0a2c2 | 1316 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); |
3d7415f4 LP |
1317 | |
1318 | r = manager_new(&m); | |
1319 | if (r < 0) { | |
1320 | log_error_errno(r, "Failed to allocate manager object: %m"); | |
1321 | goto finish; | |
1322 | } | |
1323 | ||
1324 | r = manager_add_bus_objects(m); | |
1325 | if (r < 0) | |
1326 | goto finish; | |
1327 | ||
1328 | r = manager_run(m); | |
1329 | if (r < 0) { | |
1330 | log_error_errno(r, "Failed to run event loop: %m"); | |
1331 | goto finish; | |
1332 | } | |
1333 | ||
1334 | finish: | |
1335 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1336 | } |