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