1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2014 Lennart Poettering
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.
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.
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/>.
25 #include "event-util.h"
28 #include "machine-image.h"
29 #include "import-tar.h"
30 #include "import-raw.h"
31 #include "import-dkr.h"
33 static bool arg_force = false;
34 static const char *arg_image_root = "/var/lib/machines";
36 static const char* arg_dkr_index_url = DEFAULT_DKR_INDEX_URL;
38 static void on_tar_finished(TarImport *import, int error, void *userdata) {
39 sd_event *event = userdata;
43 log_info("Operation completed successfully.");
45 log_error_errno(error, "Operation failed: %m");
47 sd_event_exit(event, error);
50 static int url_final_component(const char *url, char **ret) {
54 e = strchrnul(url, '?');
56 while (e > url && e[-1] == '/')
60 while (p > url && p[-1] != '/')
66 s = strndup(p, e - p);
74 static int strip_tar_suffixes(const char *name, char **ret) {
78 e = endswith(name, ".tar");
80 e = endswith(name, ".tar.gz");
82 e = endswith(name, ".tar.xz");
84 e = endswith(name, ".tgz");
91 s = strndup(name, e - name);
99 static int pull_tar(int argc, char *argv[], void *userdata) {
100 _cleanup_(tar_import_unrefp) TarImport *import = NULL;
101 _cleanup_event_unref_ sd_event *event = NULL;
102 const char *url, *local;
103 _cleanup_free_ char *l = NULL, *ll = NULL;
107 if (!http_url_is_valid(url)) {
108 log_error("URL '%s' is not valid.", url);
115 r = url_final_component(url, &l);
117 return log_error_errno(r, "Failed get final component of URL: %m");
122 if (isempty(local) || streq(local, "-"))
126 r = strip_tar_suffixes(local, &ll);
132 if (!machine_name_is_valid(local)) {
133 log_error("Local image name '%s' is not valid.", local);
138 r = image_find(local, NULL);
140 return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local);
142 log_error_errno(EEXIST, "Image '%s' already exists.", local);
147 log_info("Pulling '%s', saving as '%s'.", url, local);
149 log_info("Pulling '%s'.", url);
151 r = sd_event_default(&event);
153 return log_error_errno(r, "Failed to allocate event loop: %m");
155 assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
156 sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
157 sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
159 r = tar_import_new(&import, event, arg_image_root, on_tar_finished, event);
161 return log_error_errno(r, "Failed to allocate importer: %m");
163 r = tar_import_pull(import, url, local, arg_force);
165 return log_error_errno(r, "Failed to pull image: %m");
167 r = sd_event_loop(event);
169 return log_error_errno(r, "Failed to run event loop: %m");
171 log_info("Exiting.");
176 static void on_raw_finished(RawImport *import, int error, void *userdata) {
177 sd_event *event = userdata;
181 log_info("Operation completed successfully.");
183 log_error_errno(error, "Operation failed: %m");
185 sd_event_exit(event, error);
188 static int strip_raw_suffixes(const char *p, char **ret) {
189 static const char suffixes[] =
195 _cleanup_free_ char *q = NULL;
203 bool changed = false;
205 NULSTR_FOREACH(sfx, suffixes) {
208 e = endswith(q, sfx);
225 static int pull_raw(int argc, char *argv[], void *userdata) {
226 _cleanup_(raw_import_unrefp) RawImport *import = NULL;
227 _cleanup_event_unref_ sd_event *event = NULL;
228 const char *url, *local;
229 _cleanup_free_ char *l = NULL, *ll = NULL;
233 if (!http_url_is_valid(url)) {
234 log_error("URL '%s' is not valid.", url);
241 r = url_final_component(url, &l);
243 return log_error_errno(r, "Failed get final component of URL: %m");
248 if (isempty(local) || streq(local, "-"))
252 r = strip_raw_suffixes(local, &ll);
258 if (!machine_name_is_valid(local)) {
259 log_error("Local image name '%s' is not valid.", local);
264 r = image_find(local, NULL);
266 return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local);
268 log_error_errno(EEXIST, "Image '%s' already exists.", local);
273 log_info("Pulling '%s', saving as '%s'.", url, local);
275 log_info("Pulling '%s'.", url);
277 r = sd_event_default(&event);
279 return log_error_errno(r, "Failed to allocate event loop: %m");
281 assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
282 sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
283 sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
285 r = raw_import_new(&import, event, arg_image_root, on_raw_finished, event);
287 return log_error_errno(r, "Failed to allocate importer: %m");
289 r = raw_import_pull(import, url, local, arg_force);
291 return log_error_errno(r, "Failed to pull image: %m");
293 r = sd_event_loop(event);
295 return log_error_errno(r, "Failed to run event loop: %m");
297 log_info("Exiting.");
302 static void on_dkr_finished(DkrImport *import, int error, void *userdata) {
303 sd_event *event = userdata;
307 log_info("Operation completed successfully.");
309 log_error_errno(error, "Operation failed: %m");
311 sd_event_exit(event, error);
314 static int pull_dkr(int argc, char *argv[], void *userdata) {
315 _cleanup_(dkr_import_unrefp) DkrImport *import = NULL;
316 _cleanup_event_unref_ sd_event *event = NULL;
317 const char *name, *tag, *local;
320 if (!arg_dkr_index_url) {
321 log_error("Please specify an index URL with --dkr-index-url=");
325 tag = strchr(argv[1], ':');
327 name = strndupa(argv[1], tag - argv[1]);
334 if (!dkr_name_is_valid(name)) {
335 log_error("Remote name '%s' is not valid.", name);
339 if (!dkr_tag_is_valid(tag)) {
340 log_error("Tag name '%s' is not valid.", tag);
347 local = strchr(name, '/');
354 if (isempty(local) || streq(local, "-"))
360 if (!machine_name_is_valid(local)) {
361 log_error("Local image name '%s' is not valid.", local);
365 p = strappenda(arg_image_root, "/", local);
366 if (laccess(p, F_OK) >= 0) {
368 log_info("Image '%s' already exists.", local);
371 } else if (errno != ENOENT)
372 return log_error_errno(errno, "Can't check if image '%s' already exists: %m", local);
374 log_info("Pulling '%s' with tag '%s', saving as '%s'.", name, tag, local);
376 log_info("Pulling '%s' with tag '%s'.", name, tag);
378 r = sd_event_default(&event);
380 return log_error_errno(r, "Failed to allocate event loop: %m");
382 assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
383 sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
384 sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
386 r = dkr_import_new(&import, event, arg_dkr_index_url, arg_image_root, on_dkr_finished, event);
388 return log_error_errno(r, "Failed to allocate importer: %m");
390 r = dkr_import_pull(import, name, tag, local, arg_force);
392 return log_error_errno(r, "Failed to pull image: %m");
394 r = sd_event_loop(event);
396 return log_error_errno(r, "Failed to run event loop: %m");
398 log_info("Exiting.");
403 static int help(int argc, char *argv[], void *userdata) {
405 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
406 "Import container or virtual machine image.\n\n"
407 " -h --help Show this help\n"
408 " --version Show package version\n"
409 " --force Force creation of image\n"
410 " --image-root= Image root directory\n"
411 " --dkr-index-url=URL Specify index URL to use for downloads\n\n"
413 " pull-tar URL [NAME] Download a TAR image\n"
414 " pull-raw URL [NAME] Download a RAW image\n"
415 " pull-dkr REMOTE [NAME] Download a DKR image\n",
416 program_invocation_short_name);
421 static int parse_argv(int argc, char *argv[]) {
430 static const struct option options[] = {
431 { "help", no_argument, NULL, 'h' },
432 { "version", no_argument, NULL, ARG_VERSION },
433 { "force", no_argument, NULL, ARG_FORCE },
434 { "dkr-index-url", required_argument, NULL, ARG_DKR_INDEX_URL },
435 { "image-root", required_argument, NULL, ARG_IMAGE_ROOT },
444 while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
449 return help(0, NULL, NULL);
452 puts(PACKAGE_STRING);
453 puts(SYSTEMD_FEATURES);
460 case ARG_DKR_INDEX_URL:
461 if (!dkr_url_is_valid(optarg)) {
462 log_error("Index URL is not valid: %s", optarg);
466 arg_dkr_index_url = optarg;
470 arg_image_root = optarg;
477 assert_not_reached("Unhandled option");
483 static int import_main(int argc, char *argv[]) {
485 static const Verb verbs[] = {
486 { "help", VERB_ANY, VERB_ANY, 0, help },
487 { "pull-tar", 2, 3, 0, pull_tar },
488 { "pull-raw", 2, 3, 0, pull_raw },
489 { "pull-dkr", 2, 3, 0, pull_dkr },
493 return dispatch_verb(argc, argv, verbs, NULL);
496 int main(int argc, char *argv[]) {
499 setlocale(LC_ALL, "");
500 log_parse_environment();
503 r = parse_argv(argc, argv);
507 r = import_main(argc, argv);
510 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;