./tools/notsd-move

7 files changed, 1312 insertions, 0 deletions

diff --git a/src/grp-machine/grp-import/systemd-import/Makefile b/src/grp-machine/grp-import/systemd-import/Makefile
new file mode 100644
index 0000000000..8d04ec18c5
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/Makefile
@@ -0,0 +1,51 @@
+#  -*- Mode: makefile; indent-tabs-mode: t -*-
+#
+#  This file is part of systemd.
+#
+#  Copyright 2010-2012 Lennart Poettering
+#  Copyright 2010-2012 Kay Sievers
+#  Copyright 2013 Zbigniew Jędrzejewski-Szmek
+#  Copyright 2013 David Strauss
+#  Copyright 2016 Luke Shumaker
+#
+#  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 $(dir $(lastword $(MAKEFILE_LIST)))/../../../../config.mk
+include $(topsrcdir)/build-aux/Makefile.head.mk
+
+rootlibexec_PROGRAMS += systemd-import
+systemd_import_SOURCES = \
+	src/import/import.c \
+	src/import/import-raw.c \
+	src/import/import-raw.h \
+	src/import/import-tar.c \
+	src/import/import-tar.h \
+	src/import/import-common.c \
+	src/import/import-common.h \
+	src/import/import-compress.c \
+	src/import/import-compress.h \
+	src/import/qcow2-util.c \
+	src/import/qcow2-util.h
+
+systemd_import_CFLAGS = \
+	$(XZ_CFLAGS) \
+	$(ZLIB_CFLAGS) \
+	$(BZIP2_CFLAGS)
+
+systemd_import_LDADD = \
+	libsystemd-shared.la \
+	$(XZ_LIBS) \
+	$(ZLIB_LIBS) \
+	$(BZIP2_LIBS)
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
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
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..fa484377f1
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import-raw.c
@@ -0,0 +1,466 @@
+/***
+  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 "import-common.h"
+#include "import-compress.h"
+#include "qcow2-util.h"
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/btrfs-util.h"
+#include "systemd-basic/chattr-util.h"
+#include "systemd-basic/copy.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/fs-util.h"
+#include "systemd-basic/hostname-util.h"
+#include "systemd-basic/io-util.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/ratelimit.h"
+#include "systemd-basic/rm-rf.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/machine-pool.h"
+
+#include "import-raw.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);
+        return mfree(i);
+}
+
+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..64c532242d
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import-raw.h
@@ -0,0 +1,35 @@
+#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 "systemd-basic/macro.h"
+#include "systemd-shared/import-util.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..458f905d80
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import-tar.c
@@ -0,0 +1,387 @@
+/***
+  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 "import-common.h"
+#include "import-compress.h"
+#include "qcow2-util.h"
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/btrfs-util.h"
+#include "systemd-basic/copy.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/fs-util.h"
+#include "systemd-basic/hostname-util.h"
+#include "systemd-basic/io-util.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/ratelimit.h"
+#include "systemd-basic/rm-rf.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/machine-pool.h"
+
+#include "import-tar.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);
+        return mfree(i);
+}
+
+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..01c3f2d542
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import-tar.h
@@ -0,0 +1,35 @@
+#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 "systemd-basic/macro.h"
+#include "systemd-shared/import-util.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..d6f772a159
--- /dev/null
+++ b/src/grp-machine/grp-import/systemd-import/import.c
@@ -0,0 +1,338 @@
+/***
+  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 "systemd-basic/alloc-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fs-util.h"
+#include "systemd-basic/hostname-util.h"
+#include "systemd-basic/signal-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/verbs.h"
+#include "systemd-shared/import-util.h"
+#include "systemd-shared/machine-image.h"
+
+#include "import-raw.h"
+#include "import-tar.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("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("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;
+}