52ef5dd798
Let's clean up hostname_is_valid() a bit: let's turn the second boolean argument into a more explanatory flags field, and add a flag that accepts the special name ".host" as valid. This is useful for the container logic, where the special hostname ".host" refers to the "root container", i.e. the host system itself, and can be specified at various places. let's also get rid of machine_name_is_valid(). It was just an alias, which is confusing and even more so now that we have the flags param.
333 lines
11 KiB
C
333 lines
11 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
|
|
#include <getopt.h>
|
|
#include <locale.h>
|
|
|
|
#include "sd-event.h"
|
|
#include "sd-id128.h"
|
|
|
|
#include "alloc-util.h"
|
|
#include "hostname-util.h"
|
|
#include "import-util.h"
|
|
#include "machine-image.h"
|
|
#include "main-func.h"
|
|
#include "parse-util.h"
|
|
#include "pull-raw.h"
|
|
#include "pull-tar.h"
|
|
#include "signal-util.h"
|
|
#include "string-util.h"
|
|
#include "verbs.h"
|
|
#include "web-util.h"
|
|
|
|
static bool arg_force = false;
|
|
static const char *arg_image_root = "/var/lib/machines";
|
|
static ImportVerify arg_verify = IMPORT_VERIFY_SIGNATURE;
|
|
static bool arg_settings = true;
|
|
static bool arg_roothash = true;
|
|
|
|
static int interrupt_signal_handler(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) {
|
|
log_notice("Transfer aborted.");
|
|
sd_event_exit(sd_event_source_get_event(s), EINTR);
|
|
return 0;
|
|
}
|
|
|
|
static void on_tar_finished(TarPull *pull, int error, void *userdata) {
|
|
sd_event *event = userdata;
|
|
assert(pull);
|
|
|
|
if (error == 0)
|
|
log_info("Operation completed successfully.");
|
|
|
|
sd_event_exit(event, abs(error));
|
|
}
|
|
|
|
static int pull_tar(int argc, char *argv[], void *userdata) {
|
|
_cleanup_(tar_pull_unrefp) TarPull *pull = NULL;
|
|
_cleanup_(sd_event_unrefp) sd_event *event = NULL;
|
|
const char *url, *local;
|
|
_cleanup_free_ char *l = NULL, *ll = NULL;
|
|
int r;
|
|
|
|
url = argv[1];
|
|
if (!http_url_is_valid(url))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"URL '%s' is not valid.", url);
|
|
|
|
if (argc >= 3)
|
|
local = argv[2];
|
|
else {
|
|
r = import_url_last_component(url, &l);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed get final component of URL: %m");
|
|
|
|
local = l;
|
|
}
|
|
|
|
local = empty_or_dash_to_null(local);
|
|
|
|
if (local) {
|
|
r = tar_strip_suffixes(local, &ll);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
local = ll;
|
|
|
|
if (!hostname_is_valid(local, 0))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"Local image name '%s' is not valid.",
|
|
local);
|
|
|
|
if (!arg_force) {
|
|
r = image_find(IMAGE_MACHINE, local, NULL);
|
|
if (r < 0) {
|
|
if (r != -ENOENT)
|
|
return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local);
|
|
} else {
|
|
return log_error_errno(SYNTHETIC_ERRNO(EEXIST),
|
|
"Image '%s' already exists.",
|
|
local);
|
|
}
|
|
}
|
|
|
|
log_info("Pulling '%s', saving as '%s'.", url, local);
|
|
} else
|
|
log_info("Pulling '%s'.", url);
|
|
|
|
r = sd_event_default(&event);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to allocate event loop: %m");
|
|
|
|
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
|
|
(void) sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
|
|
(void) sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
|
|
|
|
r = tar_pull_new(&pull, event, arg_image_root, on_tar_finished, event);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to allocate puller: %m");
|
|
|
|
r = tar_pull_start(pull, url, local, arg_force, arg_verify, arg_settings);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to pull image: %m");
|
|
|
|
r = sd_event_loop(event);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to run event loop: %m");
|
|
|
|
log_info("Exiting.");
|
|
return -r;
|
|
}
|
|
|
|
static void on_raw_finished(RawPull *pull, int error, void *userdata) {
|
|
sd_event *event = userdata;
|
|
assert(pull);
|
|
|
|
if (error == 0)
|
|
log_info("Operation completed successfully.");
|
|
|
|
sd_event_exit(event, abs(error));
|
|
}
|
|
|
|
static int pull_raw(int argc, char *argv[], void *userdata) {
|
|
_cleanup_(raw_pull_unrefp) RawPull *pull = NULL;
|
|
_cleanup_(sd_event_unrefp) sd_event *event = NULL;
|
|
const char *url, *local;
|
|
_cleanup_free_ char *l = NULL, *ll = NULL;
|
|
int r;
|
|
|
|
url = argv[1];
|
|
if (!http_url_is_valid(url))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"URL '%s' is not valid.", url);
|
|
|
|
if (argc >= 3)
|
|
local = argv[2];
|
|
else {
|
|
r = import_url_last_component(url, &l);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed get final component of URL: %m");
|
|
|
|
local = l;
|
|
}
|
|
|
|
local = empty_or_dash_to_null(local);
|
|
|
|
if (local) {
|
|
r = raw_strip_suffixes(local, &ll);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
local = ll;
|
|
|
|
if (!hostname_is_valid(local, 0))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"Local image name '%s' is not valid.",
|
|
local);
|
|
|
|
if (!arg_force) {
|
|
r = image_find(IMAGE_MACHINE, local, NULL);
|
|
if (r < 0) {
|
|
if (r != -ENOENT)
|
|
return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local);
|
|
} else {
|
|
return log_error_errno(SYNTHETIC_ERRNO(EEXIST),
|
|
"Image '%s' already exists.",
|
|
local);
|
|
}
|
|
}
|
|
|
|
log_info("Pulling '%s', saving as '%s'.", url, local);
|
|
} else
|
|
log_info("Pulling '%s'.", url);
|
|
|
|
r = sd_event_default(&event);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to allocate event loop: %m");
|
|
|
|
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
|
|
(void) sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
|
|
(void) sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
|
|
|
|
r = raw_pull_new(&pull, event, arg_image_root, on_raw_finished, event);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to allocate puller: %m");
|
|
|
|
r = raw_pull_start(pull, url, local, arg_force, arg_verify, arg_settings, arg_roothash);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to pull image: %m");
|
|
|
|
r = sd_event_loop(event);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to run event loop: %m");
|
|
|
|
log_info("Exiting.");
|
|
return -r;
|
|
}
|
|
|
|
static int help(int argc, char *argv[], void *userdata) {
|
|
|
|
printf("%s [OPTIONS...] {COMMAND} ...\n\n"
|
|
"Download container or virtual machine images.\n\n"
|
|
" -h --help Show this help\n"
|
|
" --version Show package version\n"
|
|
" --force Force creation of image\n"
|
|
" --verify=MODE Verify downloaded image, one of: 'no',\n"
|
|
" 'checksum', 'signature'\n"
|
|
" --settings=BOOL Download settings file with image\n"
|
|
" --roothash=BOOL Download root hash file with image\n"
|
|
" --image-root=PATH Image root directory\n\n"
|
|
"Commands:\n"
|
|
" tar URL [NAME] Download a TAR image\n"
|
|
" raw URL [NAME] Download a RAW image\n",
|
|
program_invocation_short_name);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_argv(int argc, char *argv[]) {
|
|
|
|
enum {
|
|
ARG_VERSION = 0x100,
|
|
ARG_FORCE,
|
|
ARG_IMAGE_ROOT,
|
|
ARG_VERIFY,
|
|
ARG_SETTINGS,
|
|
ARG_ROOTHASH,
|
|
};
|
|
|
|
static const struct option options[] = {
|
|
{ "help", no_argument, NULL, 'h' },
|
|
{ "version", no_argument, NULL, ARG_VERSION },
|
|
{ "force", no_argument, NULL, ARG_FORCE },
|
|
{ "image-root", required_argument, NULL, ARG_IMAGE_ROOT },
|
|
{ "verify", required_argument, NULL, ARG_VERIFY },
|
|
{ "settings", required_argument, NULL, ARG_SETTINGS },
|
|
{ "roothash", required_argument, NULL, ARG_ROOTHASH },
|
|
{}
|
|
};
|
|
|
|
int c, r;
|
|
|
|
assert(argc >= 0);
|
|
assert(argv);
|
|
|
|
while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
|
|
|
|
switch (c) {
|
|
|
|
case 'h':
|
|
return help(0, NULL, NULL);
|
|
|
|
case ARG_VERSION:
|
|
return version();
|
|
|
|
case ARG_FORCE:
|
|
arg_force = true;
|
|
break;
|
|
|
|
case ARG_IMAGE_ROOT:
|
|
arg_image_root = optarg;
|
|
break;
|
|
|
|
case ARG_VERIFY:
|
|
arg_verify = import_verify_from_string(optarg);
|
|
if (arg_verify < 0)
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"Invalid verification setting '%s'", optarg);
|
|
|
|
break;
|
|
|
|
case ARG_SETTINGS:
|
|
r = parse_boolean(optarg);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to parse --settings= parameter '%s': %m", optarg);
|
|
|
|
arg_settings = r;
|
|
break;
|
|
|
|
case ARG_ROOTHASH:
|
|
r = parse_boolean(optarg);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to parse --roothash= parameter '%s': %m", optarg);
|
|
|
|
arg_roothash = r;
|
|
break;
|
|
|
|
case '?':
|
|
return -EINVAL;
|
|
|
|
default:
|
|
assert_not_reached("Unhandled option");
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int pull_main(int argc, char *argv[]) {
|
|
static const Verb verbs[] = {
|
|
{ "help", VERB_ANY, VERB_ANY, 0, help },
|
|
{ "tar", 2, 3, 0, pull_tar },
|
|
{ "raw", 2, 3, 0, pull_raw },
|
|
{}
|
|
};
|
|
|
|
return dispatch_verb(argc, argv, verbs, NULL);
|
|
}
|
|
|
|
static int run(int argc, char *argv[]) {
|
|
int r;
|
|
|
|
setlocale(LC_ALL, "");
|
|
log_parse_environment();
|
|
log_open();
|
|
|
|
r = parse_argv(argc, argv);
|
|
if (r <= 0)
|
|
return r;
|
|
|
|
(void) ignore_signals(SIGPIPE, -1);
|
|
|
|
return pull_main(argc, argv);
|
|
}
|
|
|
|
DEFINE_MAIN_FUNCTION(run);
|