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-rw-r--r--src/grp-machine/grp-import/systemd-import/import-pubring.gpgbin0 -> 9551 bytes
-rw-r--r--src/grp-machine/grp-import/systemd-import/import-raw.c467
-rw-r--r--src/grp-machine/grp-import/systemd-import/import-raw.h36
-rw-r--r--src/grp-machine/grp-import/systemd-import/import-tar.c388
-rw-r--r--src/grp-machine/grp-import/systemd-import/import-tar.h36
-rw-r--r--src/grp-machine/grp-import/systemd-import/import.c337
6 files changed, 1264 insertions, 0 deletions
diff --git a/src/grp-machine/grp-import/systemd-import/import-pubring.gpg b/src/grp-machine/grp-import/systemd-import/import-pubring.gpg
new file mode 100644
index 0000000000..be27776896
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import-pubring.gpg
Binary files differ
diff --git a/src/grp-machine/grp-import/systemd-import/import-raw.c b/src/grp-machine/grp-import/systemd-import/import-raw.c
new file mode 100644
index 0000000000..ce37392707
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import-raw.c
@@ -0,0 +1,467 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <linux/fs.h>
+
+#include <systemd/sd-daemon.h>
+#include <systemd/sd-event.h>
+
+#include "alloc-util.h"
+#include "btrfs-util.h"
+#include "chattr-util.h"
+#include "copy.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "fs-util.h"
+#include "hostname-util.h"
+#include "import-common.h"
+#include "import-compress.h"
+#include "import-raw.h"
+#include "io-util.h"
+#include "machine-pool.h"
+#include "mkdir.h"
+#include "path-util.h"
+#include "qcow2-util.h"
+#include "ratelimit.h"
+#include "rm-rf.h"
+#include "string-util.h"
+#include "util.h"
+
+struct RawImport {
+ sd_event *event;
+
+ char *image_root;
+
+ RawImportFinished on_finished;
+ void *userdata;
+
+ char *local;
+ bool force_local;
+ bool read_only;
+ bool grow_machine_directory;
+
+ char *temp_path;
+ char *final_path;
+
+ int input_fd;
+ int output_fd;
+
+ ImportCompress compress;
+
+ uint64_t written_since_last_grow;
+
+ sd_event_source *input_event_source;
+
+ uint8_t buffer[16*1024];
+ size_t buffer_size;
+
+ uint64_t written_compressed;
+ uint64_t written_uncompressed;
+
+ struct stat st;
+
+ unsigned last_percent;
+ RateLimit progress_rate_limit;
+};
+
+RawImport* raw_import_unref(RawImport *i) {
+ if (!i)
+ return NULL;
+
+ sd_event_unref(i->event);
+
+ if (i->temp_path) {
+ (void) unlink(i->temp_path);
+ free(i->temp_path);
+ }
+
+ import_compress_free(&i->compress);
+
+ sd_event_source_unref(i->input_event_source);
+
+ safe_close(i->output_fd);
+
+ free(i->final_path);
+ free(i->image_root);
+ free(i->local);
+ free(i);
+
+ return NULL;
+}
+
+int raw_import_new(
+ RawImport **ret,
+ sd_event *event,
+ const char *image_root,
+ RawImportFinished on_finished,
+ void *userdata) {
+
+ _cleanup_(raw_import_unrefp) RawImport *i = NULL;
+ int r;
+
+ assert(ret);
+
+ i = new0(RawImport, 1);
+ if (!i)
+ return -ENOMEM;
+
+ i->input_fd = i->output_fd = -1;
+ i->on_finished = on_finished;
+ i->userdata = userdata;
+
+ RATELIMIT_INIT(i->progress_rate_limit, 100 * USEC_PER_MSEC, 1);
+ i->last_percent = (unsigned) -1;
+
+ i->image_root = strdup(image_root ?: "/var/lib/machines");
+ if (!i->image_root)
+ return -ENOMEM;
+
+ i->grow_machine_directory = path_startswith(i->image_root, "/var/lib/machines");
+
+ if (event)
+ i->event = sd_event_ref(event);
+ else {
+ r = sd_event_default(&i->event);
+ if (r < 0)
+ return r;
+ }
+
+ *ret = i;
+ i = NULL;
+
+ return 0;
+}
+
+static void raw_import_report_progress(RawImport *i) {
+ unsigned percent;
+ assert(i);
+
+ /* We have no size information, unless the source is a regular file */
+ if (!S_ISREG(i->st.st_mode))
+ return;
+
+ if (i->written_compressed >= (uint64_t) i->st.st_size)
+ percent = 100;
+ else
+ percent = (unsigned) ((i->written_compressed * UINT64_C(100)) / (uint64_t) i->st.st_size);
+
+ if (percent == i->last_percent)
+ return;
+
+ if (!ratelimit_test(&i->progress_rate_limit))
+ return;
+
+ sd_notifyf(false, "X_IMPORT_PROGRESS=%u", percent);
+ log_info("Imported %u%%.", percent);
+
+ i->last_percent = percent;
+}
+
+static int raw_import_maybe_convert_qcow2(RawImport *i) {
+ _cleanup_close_ int converted_fd = -1;
+ _cleanup_free_ char *t = NULL;
+ int r;
+
+ assert(i);
+
+ r = qcow2_detect(i->output_fd);
+ if (r < 0)
+ return log_error_errno(r, "Failed to detect whether this is a QCOW2 image: %m");
+ if (r == 0)
+ return 0;
+
+ /* This is a QCOW2 image, let's convert it */
+ r = tempfn_random(i->final_path, NULL, &t);
+ if (r < 0)
+ return log_oom();
+
+ converted_fd = open(t, O_RDWR|O_CREAT|O_EXCL|O_NOCTTY|O_CLOEXEC, 0664);
+ if (converted_fd < 0)
+ return log_error_errno(errno, "Failed to create %s: %m", t);
+
+ r = chattr_fd(converted_fd, FS_NOCOW_FL, FS_NOCOW_FL);
+ if (r < 0)
+ log_warning_errno(r, "Failed to set file attributes on %s: %m", t);
+
+ log_info("Unpacking QCOW2 file.");
+
+ r = qcow2_convert(i->output_fd, converted_fd);
+ if (r < 0) {
+ unlink(t);
+ return log_error_errno(r, "Failed to convert qcow2 image: %m");
+ }
+
+ (void) unlink(i->temp_path);
+ free(i->temp_path);
+ i->temp_path = t;
+ t = NULL;
+
+ safe_close(i->output_fd);
+ i->output_fd = converted_fd;
+ converted_fd = -1;
+
+ return 1;
+}
+
+static int raw_import_finish(RawImport *i) {
+ int r;
+
+ assert(i);
+ assert(i->output_fd >= 0);
+ assert(i->temp_path);
+ assert(i->final_path);
+
+ /* In case this was a sparse file, make sure the file system is right */
+ if (i->written_uncompressed > 0) {
+ if (ftruncate(i->output_fd, i->written_uncompressed) < 0)
+ return log_error_errno(errno, "Failed to truncate file: %m");
+ }
+
+ r = raw_import_maybe_convert_qcow2(i);
+ if (r < 0)
+ return r;
+
+ if (S_ISREG(i->st.st_mode)) {
+ (void) copy_times(i->input_fd, i->output_fd);
+ (void) copy_xattr(i->input_fd, i->output_fd);
+ }
+
+ if (i->read_only) {
+ r = import_make_read_only_fd(i->output_fd);
+ if (r < 0)
+ return r;
+ }
+
+ if (i->force_local)
+ (void) rm_rf(i->final_path, REMOVE_ROOT|REMOVE_PHYSICAL|REMOVE_SUBVOLUME);
+
+ r = rename_noreplace(AT_FDCWD, i->temp_path, AT_FDCWD, i->final_path);
+ if (r < 0)
+ return log_error_errno(r, "Failed to move image into place: %m");
+
+ i->temp_path = mfree(i->temp_path);
+
+ return 0;
+}
+
+static int raw_import_open_disk(RawImport *i) {
+ int r;
+
+ assert(i);
+
+ assert(!i->final_path);
+ assert(!i->temp_path);
+ assert(i->output_fd < 0);
+
+ i->final_path = strjoin(i->image_root, "/", i->local, ".raw", NULL);
+ if (!i->final_path)
+ return log_oom();
+
+ r = tempfn_random(i->final_path, NULL, &i->temp_path);
+ if (r < 0)
+ return log_oom();
+
+ (void) mkdir_parents_label(i->temp_path, 0700);
+
+ i->output_fd = open(i->temp_path, O_RDWR|O_CREAT|O_EXCL|O_NOCTTY|O_CLOEXEC, 0664);
+ if (i->output_fd < 0)
+ return log_error_errno(errno, "Failed to open destination %s: %m", i->temp_path);
+
+ r = chattr_fd(i->output_fd, FS_NOCOW_FL, FS_NOCOW_FL);
+ if (r < 0)
+ log_warning_errno(r, "Failed to set file attributes on %s: %m", i->temp_path);
+
+ return 0;
+}
+
+static int raw_import_try_reflink(RawImport *i) {
+ off_t p;
+ int r;
+
+ assert(i);
+ assert(i->input_fd >= 0);
+ assert(i->output_fd >= 0);
+
+ if (i->compress.type != IMPORT_COMPRESS_UNCOMPRESSED)
+ return 0;
+
+ if (!S_ISREG(i->st.st_mode))
+ return 0;
+
+ p = lseek(i->input_fd, 0, SEEK_CUR);
+ if (p == (off_t) -1)
+ return log_error_errno(errno, "Failed to read file offset of input file: %m");
+
+ /* Let's only try a btrfs reflink, if we are reading from the beginning of the file */
+ if ((uint64_t) p != (uint64_t) i->buffer_size)
+ return 0;
+
+ r = btrfs_reflink(i->input_fd, i->output_fd);
+ if (r >= 0)
+ return 1;
+
+ return 0;
+}
+
+static int raw_import_write(const void *p, size_t sz, void *userdata) {
+ RawImport *i = userdata;
+ ssize_t n;
+
+ if (i->grow_machine_directory && i->written_since_last_grow >= GROW_INTERVAL_BYTES) {
+ i->written_since_last_grow = 0;
+ grow_machine_directory();
+ }
+
+ n = sparse_write(i->output_fd, p, sz, 64);
+ if (n < 0)
+ return -errno;
+ if ((size_t) n < sz)
+ return -EIO;
+
+ i->written_uncompressed += sz;
+ i->written_since_last_grow += sz;
+
+ return 0;
+}
+
+static int raw_import_process(RawImport *i) {
+ ssize_t l;
+ int r;
+
+ assert(i);
+ assert(i->buffer_size < sizeof(i->buffer));
+
+ l = read(i->input_fd, i->buffer + i->buffer_size, sizeof(i->buffer) - i->buffer_size);
+ if (l < 0) {
+ if (errno == EAGAIN)
+ return 0;
+
+ r = log_error_errno(errno, "Failed to read input file: %m");
+ goto finish;
+ }
+ if (l == 0) {
+ if (i->compress.type == IMPORT_COMPRESS_UNKNOWN) {
+ log_error("Premature end of file: %m");
+ r = -EIO;
+ goto finish;
+ }
+
+ r = raw_import_finish(i);
+ goto finish;
+ }
+
+ i->buffer_size += l;
+
+ if (i->compress.type == IMPORT_COMPRESS_UNKNOWN) {
+ r = import_uncompress_detect(&i->compress, i->buffer, i->buffer_size);
+ if (r < 0) {
+ log_error("Failed to detect file compression: %m");
+ goto finish;
+ }
+ if (r == 0) /* Need more data */
+ return 0;
+
+ r = raw_import_open_disk(i);
+ if (r < 0)
+ goto finish;
+
+ r = raw_import_try_reflink(i);
+ if (r < 0)
+ goto finish;
+ if (r > 0) {
+ r = raw_import_finish(i);
+ goto finish;
+ }
+ }
+
+ r = import_uncompress(&i->compress, i->buffer, i->buffer_size, raw_import_write, i);
+ if (r < 0) {
+ log_error_errno(r, "Failed to decode and write: %m");
+ goto finish;
+ }
+
+ i->written_compressed += i->buffer_size;
+ i->buffer_size = 0;
+
+ raw_import_report_progress(i);
+
+ return 0;
+
+finish:
+ if (i->on_finished)
+ i->on_finished(i, r, i->userdata);
+ else
+ sd_event_exit(i->event, r);
+
+ return 0;
+}
+
+static int raw_import_on_input(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
+ RawImport *i = userdata;
+
+ return raw_import_process(i);
+}
+
+static int raw_import_on_defer(sd_event_source *s, void *userdata) {
+ RawImport *i = userdata;
+
+ return raw_import_process(i);
+}
+
+int raw_import_start(RawImport *i, int fd, const char *local, bool force_local, bool read_only) {
+ int r;
+
+ assert(i);
+ assert(fd >= 0);
+ assert(local);
+
+ if (!machine_name_is_valid(local))
+ return -EINVAL;
+
+ if (i->input_fd >= 0)
+ return -EBUSY;
+
+ r = fd_nonblock(fd, true);
+ if (r < 0)
+ return r;
+
+ r = free_and_strdup(&i->local, local);
+ if (r < 0)
+ return r;
+ i->force_local = force_local;
+ i->read_only = read_only;
+
+ if (fstat(fd, &i->st) < 0)
+ return -errno;
+
+ r = sd_event_add_io(i->event, &i->input_event_source, fd, EPOLLIN, raw_import_on_input, i);
+ if (r == -EPERM) {
+ /* This fd does not support epoll, for example because it is a regular file. Busy read in that case */
+ r = sd_event_add_defer(i->event, &i->input_event_source, raw_import_on_defer, i);
+ if (r < 0)
+ return r;
+
+ r = sd_event_source_set_enabled(i->input_event_source, SD_EVENT_ON);
+ }
+ if (r < 0)
+ return r;
+
+ i->input_fd = fd;
+ return r;
+}
diff --git a/src/grp-machine/grp-import/systemd-import/import-raw.h b/src/grp-machine/grp-import/systemd-import/import-raw.h
new file mode 100644
index 0000000000..f0a315c088
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import-raw.h
@@ -0,0 +1,36 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <systemd/sd-event.h>
+
+#include "import-util.h"
+#include "macro.h"
+
+typedef struct RawImport RawImport;
+
+typedef void (*RawImportFinished)(RawImport *import, int error, void *userdata);
+
+int raw_import_new(RawImport **import, sd_event *event, const char *image_root, RawImportFinished on_finished, void *userdata);
+RawImport* raw_import_unref(RawImport *import);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(RawImport*, raw_import_unref);
+
+int raw_import_start(RawImport *i, int fd, const char *local, bool force_local, bool read_only);
diff --git a/src/grp-machine/grp-import/systemd-import/import-tar.c b/src/grp-machine/grp-import/systemd-import/import-tar.c
new file mode 100644
index 0000000000..016d05e77d
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import-tar.c
@@ -0,0 +1,388 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <linux/fs.h>
+
+#include <systemd/sd-daemon.h>
+#include <systemd/sd-event.h>
+
+#include "alloc-util.h"
+#include "btrfs-util.h"
+#include "copy.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "fs-util.h"
+#include "hostname-util.h"
+#include "import-common.h"
+#include "import-compress.h"
+#include "import-tar.h"
+#include "io-util.h"
+#include "machine-pool.h"
+#include "mkdir.h"
+#include "path-util.h"
+#include "process-util.h"
+#include "qcow2-util.h"
+#include "ratelimit.h"
+#include "rm-rf.h"
+#include "string-util.h"
+#include "util.h"
+
+struct TarImport {
+ sd_event *event;
+
+ char *image_root;
+
+ TarImportFinished on_finished;
+ void *userdata;
+
+ char *local;
+ bool force_local;
+ bool read_only;
+ bool grow_machine_directory;
+
+ char *temp_path;
+ char *final_path;
+
+ int input_fd;
+ int tar_fd;
+
+ ImportCompress compress;
+
+ uint64_t written_since_last_grow;
+
+ sd_event_source *input_event_source;
+
+ uint8_t buffer[16*1024];
+ size_t buffer_size;
+
+ uint64_t written_compressed;
+ uint64_t written_uncompressed;
+
+ struct stat st;
+
+ pid_t tar_pid;
+
+ unsigned last_percent;
+ RateLimit progress_rate_limit;
+};
+
+TarImport* tar_import_unref(TarImport *i) {
+ if (!i)
+ return NULL;
+
+ sd_event_source_unref(i->input_event_source);
+
+ if (i->tar_pid > 1) {
+ (void) kill_and_sigcont(i->tar_pid, SIGKILL);
+ (void) wait_for_terminate(i->tar_pid, NULL);
+ }
+
+ if (i->temp_path) {
+ (void) rm_rf(i->temp_path, REMOVE_ROOT|REMOVE_PHYSICAL|REMOVE_SUBVOLUME);
+ free(i->temp_path);
+ }
+
+ import_compress_free(&i->compress);
+
+ sd_event_unref(i->event);
+
+ safe_close(i->tar_fd);
+
+ free(i->final_path);
+ free(i->image_root);
+ free(i->local);
+ free(i);
+
+ return NULL;
+}
+
+int tar_import_new(
+ TarImport **ret,
+ sd_event *event,
+ const char *image_root,
+ TarImportFinished on_finished,
+ void *userdata) {
+
+ _cleanup_(tar_import_unrefp) TarImport *i = NULL;
+ int r;
+
+ assert(ret);
+
+ i = new0(TarImport, 1);
+ if (!i)
+ return -ENOMEM;
+
+ i->input_fd = i->tar_fd = -1;
+ i->on_finished = on_finished;
+ i->userdata = userdata;
+
+ RATELIMIT_INIT(i->progress_rate_limit, 100 * USEC_PER_MSEC, 1);
+ i->last_percent = (unsigned) -1;
+
+ i->image_root = strdup(image_root ?: "/var/lib/machines");
+ if (!i->image_root)
+ return -ENOMEM;
+
+ i->grow_machine_directory = path_startswith(i->image_root, "/var/lib/machines");
+
+ if (event)
+ i->event = sd_event_ref(event);
+ else {
+ r = sd_event_default(&i->event);
+ if (r < 0)
+ return r;
+ }
+
+ *ret = i;
+ i = NULL;
+
+ return 0;
+}
+
+static void tar_import_report_progress(TarImport *i) {
+ unsigned percent;
+ assert(i);
+
+ /* We have no size information, unless the source is a regular file */
+ if (!S_ISREG(i->st.st_mode))
+ return;
+
+ if (i->written_compressed >= (uint64_t) i->st.st_size)
+ percent = 100;
+ else
+ percent = (unsigned) ((i->written_compressed * UINT64_C(100)) / (uint64_t) i->st.st_size);
+
+ if (percent == i->last_percent)
+ return;
+
+ if (!ratelimit_test(&i->progress_rate_limit))
+ return;
+
+ sd_notifyf(false, "X_IMPORT_PROGRESS=%u", percent);
+ log_info("Imported %u%%.", percent);
+
+ i->last_percent = percent;
+}
+
+static int tar_import_finish(TarImport *i) {
+ int r;
+
+ assert(i);
+ assert(i->tar_fd >= 0);
+ assert(i->temp_path);
+ assert(i->final_path);
+
+ i->tar_fd = safe_close(i->tar_fd);
+
+ if (i->tar_pid > 0) {
+ r = wait_for_terminate_and_warn("tar", i->tar_pid, true);
+ i->tar_pid = 0;
+ if (r < 0)
+ return r;
+ }
+
+ if (i->read_only) {
+ r = import_make_read_only(i->temp_path);
+ if (r < 0)
+ return r;
+ }
+
+ if (i->force_local)
+ (void) rm_rf(i->final_path, REMOVE_ROOT|REMOVE_PHYSICAL|REMOVE_SUBVOLUME);
+
+ r = rename_noreplace(AT_FDCWD, i->temp_path, AT_FDCWD, i->final_path);
+ if (r < 0)
+ return log_error_errno(r, "Failed to move image into place: %m");
+
+ i->temp_path = mfree(i->temp_path);
+
+ return 0;
+}
+
+static int tar_import_fork_tar(TarImport *i) {
+ int r;
+
+ assert(i);
+
+ assert(!i->final_path);
+ assert(!i->temp_path);
+ assert(i->tar_fd < 0);
+
+ i->final_path = strjoin(i->image_root, "/", i->local, NULL);
+ if (!i->final_path)
+ return log_oom();
+
+ r = tempfn_random(i->final_path, NULL, &i->temp_path);
+ if (r < 0)
+ return log_oom();
+
+ (void) mkdir_parents_label(i->temp_path, 0700);
+
+ r = btrfs_subvol_make(i->temp_path);
+ if (r == -ENOTTY) {
+ if (mkdir(i->temp_path, 0755) < 0)
+ return log_error_errno(errno, "Failed to create directory %s: %m", i->temp_path);
+ } else if (r < 0)
+ return log_error_errno(r, "Failed to create subvolume %s: %m", i->temp_path);
+ else
+ (void) import_assign_pool_quota_and_warn(i->temp_path);
+
+ i->tar_fd = import_fork_tar_x(i->temp_path, &i->tar_pid);
+ if (i->tar_fd < 0)
+ return i->tar_fd;
+
+ return 0;
+}
+
+static int tar_import_write(const void *p, size_t sz, void *userdata) {
+ TarImport *i = userdata;
+ int r;
+
+ if (i->grow_machine_directory && i->written_since_last_grow >= GROW_INTERVAL_BYTES) {
+ i->written_since_last_grow = 0;
+ grow_machine_directory();
+ }
+
+ r = loop_write(i->tar_fd, p, sz, false);
+ if (r < 0)
+ return r;
+
+ i->written_uncompressed += sz;
+ i->written_since_last_grow += sz;
+
+ return 0;
+}
+
+static int tar_import_process(TarImport *i) {
+ ssize_t l;
+ int r;
+
+ assert(i);
+ assert(i->buffer_size < sizeof(i->buffer));
+
+ l = read(i->input_fd, i->buffer + i->buffer_size, sizeof(i->buffer) - i->buffer_size);
+ if (l < 0) {
+ if (errno == EAGAIN)
+ return 0;
+
+ r = log_error_errno(errno, "Failed to read input file: %m");
+ goto finish;
+ }
+ if (l == 0) {
+ if (i->compress.type == IMPORT_COMPRESS_UNKNOWN) {
+ log_error("Premature end of file: %m");
+ r = -EIO;
+ goto finish;
+ }
+
+ r = tar_import_finish(i);
+ goto finish;
+ }
+
+ i->buffer_size += l;
+
+ if (i->compress.type == IMPORT_COMPRESS_UNKNOWN) {
+ r = import_uncompress_detect(&i->compress, i->buffer, i->buffer_size);
+ if (r < 0) {
+ log_error("Failed to detect file compression: %m");
+ goto finish;
+ }
+ if (r == 0) /* Need more data */
+ return 0;
+
+ r = tar_import_fork_tar(i);
+ if (r < 0)
+ goto finish;
+ }
+
+ r = import_uncompress(&i->compress, i->buffer, i->buffer_size, tar_import_write, i);
+ if (r < 0) {
+ log_error_errno(r, "Failed to decode and write: %m");
+ goto finish;
+ }
+
+ i->written_compressed += i->buffer_size;
+ i->buffer_size = 0;
+
+ tar_import_report_progress(i);
+
+ return 0;
+
+finish:
+ if (i->on_finished)
+ i->on_finished(i, r, i->userdata);
+ else
+ sd_event_exit(i->event, r);
+
+ return 0;
+}
+
+static int tar_import_on_input(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
+ TarImport *i = userdata;
+
+ return tar_import_process(i);
+}
+
+static int tar_import_on_defer(sd_event_source *s, void *userdata) {
+ TarImport *i = userdata;
+
+ return tar_import_process(i);
+}
+
+int tar_import_start(TarImport *i, int fd, const char *local, bool force_local, bool read_only) {
+ int r;
+
+ assert(i);
+ assert(fd >= 0);
+ assert(local);
+
+ if (!machine_name_is_valid(local))
+ return -EINVAL;
+
+ if (i->input_fd >= 0)
+ return -EBUSY;
+
+ r = fd_nonblock(fd, true);
+ if (r < 0)
+ return r;
+
+ r = free_and_strdup(&i->local, local);
+ if (r < 0)
+ return r;
+ i->force_local = force_local;
+ i->read_only = read_only;
+
+ if (fstat(fd, &i->st) < 0)
+ return -errno;
+
+ r = sd_event_add_io(i->event, &i->input_event_source, fd, EPOLLIN, tar_import_on_input, i);
+ if (r == -EPERM) {
+ /* This fd does not support epoll, for example because it is a regular file. Busy read in that case */
+ r = sd_event_add_defer(i->event, &i->input_event_source, tar_import_on_defer, i);
+ if (r < 0)
+ return r;
+
+ r = sd_event_source_set_enabled(i->input_event_source, SD_EVENT_ON);
+ }
+ if (r < 0)
+ return r;
+
+ i->input_fd = fd;
+ return r;
+}
diff --git a/src/grp-machine/grp-import/systemd-import/import-tar.h b/src/grp-machine/grp-import/systemd-import/import-tar.h
new file mode 100644
index 0000000000..b66b00ddfd
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import-tar.h
@@ -0,0 +1,36 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <systemd/sd-event.h>
+
+#include "import-util.h"
+#include "macro.h"
+
+typedef struct TarImport TarImport;
+
+typedef void (*TarImportFinished)(TarImport *import, int error, void *userdata);
+
+int tar_import_new(TarImport **import, sd_event *event, const char *image_root, TarImportFinished on_finished, void *userdata);
+TarImport* tar_import_unref(TarImport *import);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(TarImport*, tar_import_unref);
+
+int tar_import_start(TarImport *import, int fd, const char *local, bool force_local, bool read_only);
diff --git a/src/grp-machine/grp-import/systemd-import/import.c b/src/grp-machine/grp-import/systemd-import/import.c
new file mode 100644
index 0000000000..338847dbc2
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import.c
@@ -0,0 +1,337 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <getopt.h>
+
+#include <systemd/sd-event.h>
+
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "fs-util.h"
+#include "hostname-util.h"
+#include "import-raw.h"
+#include "import-tar.h"
+#include "import-util.h"
+#include "machine-image.h"
+#include "signal-util.h"
+#include "string-util.h"
+#include "verbs.h"
+
+static bool arg_force = false;
+static bool arg_read_only = false;
+static const char *arg_image_root = "/var/lib/machines";
+
+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(TarImport *import, int error, void *userdata) {
+ sd_event *event = userdata;
+ assert(import);
+
+ if (error == 0)
+ log_info("Operation completed successfully.");
+
+ sd_event_exit(event, abs(error));
+}
+
+static int import_tar(int argc, char *argv[], void *userdata) {
+ _cleanup_(tar_import_unrefp) TarImport *import = NULL;
+ _cleanup_(sd_event_unrefp) sd_event *event = NULL;
+ const char *path = NULL, *local = NULL;
+ _cleanup_free_ char *ll = NULL;
+ _cleanup_close_ int open_fd = -1;
+ int r, fd;
+
+ if (argc >= 2)
+ path = argv[1];
+ if (isempty(path) || streq(path, "-"))
+ path = NULL;
+
+ if (argc >= 3)
+ local = argv[2];
+ else if (path)
+ local = basename(path);
+ if (isempty(local) || streq(local, "-"))
+ local = NULL;
+
+ if (local) {
+ r = tar_strip_suffixes(local, &ll);
+ if (r < 0)
+ return log_oom();
+
+ local = ll;
+
+ if (!machine_name_is_valid(local)) {
+ log_error("Local image name '%s' is not valid.", local);
+ return -EINVAL;
+ }
+
+ if (!arg_force) {
+ r = image_find(local, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local);
+ else if (r > 0) {
+ log_error_errno(EEXIST, "Image '%s' already exists.", local);
+ return -EEXIST;
+ }
+ }
+ } else
+ local = "imported";
+
+ if (path) {
+ open_fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (open_fd < 0)
+ return log_error_errno(errno, "Failed to open tar image 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) readlink_malloc("/proc/self/fd/0", &pretty);
+ log_info("Importing '%s', saving as '%s'.", strna(pretty), local);
+ }
+
+ 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_import_new(&import, event, arg_image_root, on_tar_finished, event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate importer: %m");
+
+ r = tar_import_start(import, fd, local, arg_force, arg_read_only);
+ if (r < 0)
+ return log_error_errno(r, "Failed to import 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(RawImport *import, int error, void *userdata) {
+ sd_event *event = userdata;
+ assert(import);
+
+ if (error == 0)
+ log_info("Operation completed successfully.");
+
+ sd_event_exit(event, abs(error));
+}
+
+static int import_raw(int argc, char *argv[], void *userdata) {
+ _cleanup_(raw_import_unrefp) RawImport *import = NULL;
+ _cleanup_(sd_event_unrefp) sd_event *event = NULL;
+ const char *path = NULL, *local = NULL;
+ _cleanup_free_ char *ll = NULL;
+ _cleanup_close_ int open_fd = -1;
+ int r, fd;
+
+ if (argc >= 2)
+ path = argv[1];
+ if (isempty(path) || streq(path, "-"))
+ path = NULL;
+
+ if (argc >= 3)
+ local = argv[2];
+ else if (path)
+ local = basename(path);
+ if (isempty(local) || streq(local, "-"))
+ local = NULL;
+
+ if (local) {
+ r = raw_strip_suffixes(local, &ll);
+ if (r < 0)
+ return log_oom();
+
+ local = ll;
+
+ if (!machine_name_is_valid(local)) {
+ log_error("Local image name '%s' is not valid.", local);
+ return -EINVAL;
+ }
+
+ if (!arg_force) {
+ r = image_find(local, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local);
+ else if (r > 0) {
+ log_error_errno(EEXIST, "Image '%s' already exists.", local);
+ return -EEXIST;
+ }
+ }
+ } else
+ local = "imported";
+
+ if (path) {
+ open_fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (open_fd < 0)
+ return log_error_errno(errno, "Failed to open raw image 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) readlink_malloc("/proc/self/fd/0", &pretty);
+ log_info("Importing '%s', saving as '%s'.", pretty, local);
+ }
+
+ 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_import_new(&import, event, arg_image_root, on_raw_finished, event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate importer: %m");
+
+ r = raw_import_start(import, fd, local, arg_force, arg_read_only);
+ if (r < 0)
+ return log_error_errno(r, "Failed to import 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"
+ "Import container or virtual machine images.\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"
+ " tar FILE [NAME] Import a TAR image\n"
+ " raw FILE [NAME] Import 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_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_main(int argc, char *argv[]) {
+
+ static const Verb verbs[] = {
+ { "help", VERB_ANY, VERB_ANY, 0, help },
+ { "tar", 2, 3, 0, import_tar },
+ { "raw", 2, 3, 0, import_raw },
+ {}
+ };
+
+ 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;
+
+ (void) ignore_signals(SIGPIPE, -1);
+
+ r = import_main(argc, argv);
+
+finish:
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-10 02:07:58 +0000