2020-11-09 05:23:58 +01:00
|
|
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
2018-10-10 21:20:08 +02:00
|
|
|
|
|
|
|
#include <getopt.h>
|
2019-03-27 11:32:41 +01:00
|
|
|
#include <locale.h>
|
2018-10-10 21:20:08 +02:00
|
|
|
|
|
|
|
#include "alloc-util.h"
|
|
|
|
#include "btrfs-util.h"
|
|
|
|
#include "fd-util.h"
|
2019-06-17 09:08:24 +02:00
|
|
|
#include "format-util.h"
|
2018-10-10 21:20:08 +02:00
|
|
|
#include "fs-util.h"
|
|
|
|
#include "hostname-util.h"
|
|
|
|
#include "import-common.h"
|
|
|
|
#include "import-util.h"
|
|
|
|
#include "machine-image.h"
|
|
|
|
#include "mkdir.h"
|
|
|
|
#include "ratelimit.h"
|
|
|
|
#include "rm-rf.h"
|
|
|
|
#include "string-util.h"
|
2018-11-30 21:05:27 +01:00
|
|
|
#include "tmpfile-util.h"
|
2018-10-10 21:20:08 +02:00
|
|
|
#include "verbs.h"
|
|
|
|
|
|
|
|
static bool arg_force = false;
|
|
|
|
static bool arg_read_only = false;
|
|
|
|
static const char *arg_image_root = "/var/lib/machines";
|
|
|
|
|
|
|
|
typedef struct ProgressInfo {
|
|
|
|
RateLimit limit;
|
|
|
|
char *path;
|
|
|
|
uint64_t size;
|
|
|
|
bool started;
|
|
|
|
bool logged_incomplete;
|
|
|
|
} ProgressInfo;
|
|
|
|
|
|
|
|
static volatile sig_atomic_t cancelled = false;
|
|
|
|
|
|
|
|
static void sigterm_sigint(int sig) {
|
|
|
|
cancelled = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void progress_info_free(ProgressInfo *p) {
|
|
|
|
free(p->path);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void progress_show(ProgressInfo *p) {
|
|
|
|
assert(p);
|
|
|
|
|
|
|
|
/* Show progress only every now and then. */
|
|
|
|
if (!ratelimit_below(&p->limit))
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* Suppress the first message, start with the second one */
|
|
|
|
if (!p->started) {
|
|
|
|
p->started = true;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Mention the list is incomplete before showing first output. */
|
|
|
|
if (!p->logged_incomplete) {
|
|
|
|
log_notice("(Note, file list shown below is incomplete, and is intended as sporadic progress report only.)");
|
|
|
|
p->logged_incomplete = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (p->size == 0)
|
|
|
|
log_info("Copying tree, currently at '%s'...", p->path);
|
|
|
|
else {
|
|
|
|
char buffer[FORMAT_BYTES_MAX];
|
|
|
|
|
|
|
|
log_info("Copying tree, currently at '%s' (@%s)...", p->path, format_bytes(buffer, sizeof(buffer), p->size));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int progress_path(const char *path, const struct stat *st, void *userdata) {
|
|
|
|
ProgressInfo *p = userdata;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
assert(p);
|
|
|
|
|
|
|
|
if (cancelled)
|
|
|
|
return -EOWNERDEAD;
|
|
|
|
|
|
|
|
r = free_and_strdup(&p->path, path);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
p->size = 0;
|
|
|
|
|
|
|
|
progress_show(p);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int progress_bytes(uint64_t nbytes, void *userdata) {
|
|
|
|
ProgressInfo *p = userdata;
|
|
|
|
|
|
|
|
assert(p);
|
|
|
|
assert(p->size != UINT64_MAX);
|
|
|
|
|
|
|
|
if (cancelled)
|
|
|
|
return -EOWNERDEAD;
|
|
|
|
|
|
|
|
p->size += nbytes;
|
|
|
|
|
|
|
|
progress_show(p);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int import_fs(int argc, char *argv[], void *userdata) {
|
|
|
|
_cleanup_(rm_rf_subvolume_and_freep) char *temp_path = NULL;
|
|
|
|
_cleanup_(progress_info_free) ProgressInfo progress = {};
|
|
|
|
const char *path = NULL, *local = NULL, *final_path;
|
|
|
|
_cleanup_close_ int open_fd = -1;
|
|
|
|
struct sigaction old_sigint_sa, old_sigterm_sa;
|
|
|
|
static const struct sigaction sa = {
|
|
|
|
.sa_handler = sigterm_sigint,
|
|
|
|
.sa_flags = SA_RESTART,
|
|
|
|
};
|
|
|
|
int r, fd;
|
|
|
|
|
|
|
|
if (argc >= 2)
|
|
|
|
path = argv[1];
|
2019-04-08 12:11:11 +02:00
|
|
|
path = empty_or_dash_to_null(path);
|
2018-10-10 21:20:08 +02:00
|
|
|
|
|
|
|
if (argc >= 3)
|
|
|
|
local = argv[2];
|
|
|
|
else if (path)
|
|
|
|
local = basename(path);
|
2019-04-08 12:11:11 +02:00
|
|
|
local = empty_or_dash_to_null(local);
|
2018-10-10 21:20:08 +02:00
|
|
|
|
|
|
|
if (local) {
|
2020-12-11 16:40:45 +01:00
|
|
|
if (!hostname_is_valid(local, 0))
|
2020-10-09 14:59:44 +02:00
|
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
|
|
"Local image name '%s' is not valid.",
|
|
|
|
local);
|
2018-10-10 21:20:08 +02:00
|
|
|
|
|
|
|
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 {
|
2020-10-09 14:59:44 +02:00
|
|
|
return log_error_errno(SYNTHETIC_ERRNO(EEXIST),
|
|
|
|
"Image '%s' already exists.",
|
|
|
|
local);
|
2018-10-10 21:20:08 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
local = "imported";
|
|
|
|
|
|
|
|
if (path) {
|
|
|
|
open_fd = open(path, O_DIRECTORY|O_RDONLY|O_CLOEXEC);
|
|
|
|
if (open_fd < 0)
|
|
|
|
return log_error_errno(errno, "Failed to open directory to import: %m");
|
|
|
|
|
|
|
|
fd = open_fd;
|
|
|
|
|
|
|
|
log_info("Importing '%s', saving as '%s'.", path, local);
|
|
|
|
} else {
|
|
|
|
_cleanup_free_ char *pretty = NULL;
|
|
|
|
|
|
|
|
fd = STDIN_FILENO;
|
|
|
|
|
|
|
|
(void) fd_get_path(fd, &pretty);
|
|
|
|
log_info("Importing '%s', saving as '%s'.", strempty(pretty), local);
|
|
|
|
}
|
|
|
|
|
2019-06-24 17:24:23 +02:00
|
|
|
final_path = prefix_roota(arg_image_root, local);
|
2018-10-10 21:20:08 +02:00
|
|
|
|
|
|
|
r = tempfn_random(final_path, NULL, &temp_path);
|
|
|
|
if (r < 0)
|
|
|
|
return log_oom();
|
|
|
|
|
|
|
|
(void) mkdir_parents_label(temp_path, 0700);
|
|
|
|
|
2019-09-19 17:41:20 +02:00
|
|
|
progress.limit = (RateLimit) { 200*USEC_PER_MSEC, 1 };
|
2018-10-10 21:20:08 +02:00
|
|
|
|
|
|
|
/* Hook into SIGINT/SIGTERM, so that we can cancel things then */
|
2020-05-06 20:30:43 +02:00
|
|
|
assert_se(sigaction(SIGINT, &sa, &old_sigint_sa) >= 0);
|
|
|
|
assert_se(sigaction(SIGTERM, &sa, &old_sigterm_sa) >= 0);
|
2018-10-10 21:20:08 +02:00
|
|
|
|
|
|
|
r = btrfs_subvol_snapshot_fd_full(
|
|
|
|
fd,
|
|
|
|
temp_path,
|
|
|
|
BTRFS_SNAPSHOT_FALLBACK_COPY|BTRFS_SNAPSHOT_RECURSIVE|BTRFS_SNAPSHOT_FALLBACK_DIRECTORY|BTRFS_SNAPSHOT_QUOTA,
|
|
|
|
progress_path,
|
|
|
|
progress_bytes,
|
|
|
|
&progress);
|
|
|
|
if (r == -EOWNERDEAD) { /* SIGINT + SIGTERM cause this, see signal handler above */
|
|
|
|
log_error("Copy cancelled.");
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
if (r < 0) {
|
|
|
|
log_error_errno(r, "Failed to copy directory: %m");
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
2018-10-11 10:01:41 +02:00
|
|
|
r = import_mangle_os_tree(temp_path);
|
|
|
|
if (r < 0)
|
|
|
|
goto finish;
|
|
|
|
|
2018-10-10 21:20:08 +02:00
|
|
|
(void) import_assign_pool_quota_and_warn(temp_path);
|
|
|
|
|
|
|
|
if (arg_read_only) {
|
|
|
|
r = import_make_read_only(temp_path);
|
|
|
|
if (r < 0) {
|
|
|
|
log_error_errno(r, "Failed to make directory read-only: %m");
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (arg_force)
|
|
|
|
(void) rm_rf(final_path, REMOVE_ROOT|REMOVE_PHYSICAL|REMOVE_SUBVOLUME);
|
|
|
|
|
|
|
|
r = rename_noreplace(AT_FDCWD, temp_path, AT_FDCWD, final_path);
|
|
|
|
if (r < 0) {
|
|
|
|
log_error_errno(r, "Failed to move image into place: %m");
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
|
|
|
temp_path = mfree(temp_path);
|
|
|
|
|
|
|
|
log_info("Exiting.");
|
|
|
|
|
|
|
|
finish:
|
|
|
|
/* Put old signal handlers into place */
|
2020-05-08 13:32:11 +02:00
|
|
|
assert_se(sigaction(SIGINT, &old_sigint_sa, NULL) >= 0);
|
|
|
|
assert_se(sigaction(SIGTERM, &old_sigterm_sa, NULL) >= 0);
|
2018-10-10 21:20:08 +02:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int help(int argc, char *argv[], void *userdata) {
|
|
|
|
|
|
|
|
printf("%s [OPTIONS...] {COMMAND} ...\n\n"
|
|
|
|
"Import container images from a file system.\n\n"
|
|
|
|
" -h --help Show this help\n"
|
|
|
|
" --version Show package version\n"
|
|
|
|
" --force Force creation of image\n"
|
|
|
|
" --image-root=PATH Image root directory\n"
|
|
|
|
" --read-only Create a read-only image\n\n"
|
|
|
|
"Commands:\n"
|
|
|
|
" run DIRECTORY [NAME] Import a directory\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_READ_ONLY,
|
|
|
|
};
|
|
|
|
|
|
|
|
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 },
|
|
|
|
{ "read-only", no_argument, NULL, ARG_READ_ONLY },
|
|
|
|
{}
|
|
|
|
};
|
|
|
|
|
|
|
|
int c;
|
|
|
|
|
|
|
|
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_READ_ONLY:
|
|
|
|
arg_read_only = true;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case '?':
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
default:
|
|
|
|
assert_not_reached("Unhandled option");
|
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int import_fs_main(int argc, char *argv[]) {
|
|
|
|
|
|
|
|
static const Verb verbs[] = {
|
|
|
|
{ "help", VERB_ANY, VERB_ANY, 0, help },
|
|
|
|
{ "run", 2, 3, 0, import_fs },
|
|
|
|
{}
|
|
|
|
};
|
|
|
|
|
|
|
|
return dispatch_verb(argc, argv, verbs, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char *argv[]) {
|
|
|
|
int r;
|
|
|
|
|
|
|
|
setlocale(LC_ALL, "");
|
|
|
|
log_parse_environment();
|
|
|
|
log_open();
|
|
|
|
|
|
|
|
r = parse_argv(argc, argv);
|
|
|
|
if (r <= 0)
|
|
|
|
goto finish;
|
|
|
|
|
|
|
|
r = import_fs_main(argc, argv);
|
|
|
|
|
|
|
|
finish:
|
|
|
|
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
|
|
}
|