Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 983 insertions, 0 deletions

diff --git a/src/import/pull-raw.c b/src/import/pull-raw.c
new file mode 100644
index 0000000..66c3f65
--- /dev/null
+++ b/src/import/pull-raw.c
@@ -0,0 +1,983 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <curl/curl.h>
+#include <linux/fs.h>
+#include <sys/xattr.h>
+
+#include "sd-daemon.h"
+
+#include "alloc-util.h"
+#include "btrfs-util.h"
+#include "copy.h"
+#include "curl-util.h"
+#include "fd-util.h"
+#include "fs-util.h"
+#include "hostname-util.h"
+#include "import-common.h"
+#include "import-util.h"
+#include "install-file.h"
+#include "macro.h"
+#include "mkdir-label.h"
+#include "path-util.h"
+#include "pull-common.h"
+#include "pull-job.h"
+#include "pull-raw.h"
+#include "qcow2-util.h"
+#include "rm-rf.h"
+#include "string-util.h"
+#include "strv.h"
+#include "tmpfile-util.h"
+#include "utf8.h"
+#include "web-util.h"
+
+typedef enum RawProgress {
+        RAW_DOWNLOADING,
+        RAW_VERIFYING,
+        RAW_UNPACKING,
+        RAW_FINALIZING,
+        RAW_COPYING,
+} RawProgress;
+
+struct RawPull {
+        sd_event *event;
+        CurlGlue *glue;
+
+        PullFlags flags;
+        ImportVerify verify;
+        char *image_root;
+
+        uint64_t offset;
+
+        PullJob *raw_job;
+        PullJob *checksum_job;
+        PullJob *signature_job;
+        PullJob *settings_job;
+        PullJob *roothash_job;
+        PullJob *roothash_signature_job;
+        PullJob *verity_job;
+
+        RawPullFinished on_finished;
+        void *userdata;
+
+        char *local; /* In PULL_DIRECT mode the path we are supposed to place things in, otherwise the
+                      * machine name of the final copy we make */
+
+        char *final_path;
+        char *temp_path;
+
+        char *settings_path;
+        char *settings_temp_path;
+
+        char *roothash_path;
+        char *roothash_temp_path;
+
+        char *roothash_signature_path;
+        char *roothash_signature_temp_path;
+
+        char *verity_path;
+        char *verity_temp_path;
+
+        char *checksum;
+};
+
+RawPull* raw_pull_unref(RawPull *i) {
+        if (!i)
+                return NULL;
+
+        pull_job_unref(i->raw_job);
+        pull_job_unref(i->checksum_job);
+        pull_job_unref(i->signature_job);
+        pull_job_unref(i->settings_job);
+        pull_job_unref(i->roothash_job);
+        pull_job_unref(i->roothash_signature_job);
+        pull_job_unref(i->verity_job);
+
+        curl_glue_unref(i->glue);
+        sd_event_unref(i->event);
+
+        unlink_and_free(i->temp_path);
+        unlink_and_free(i->settings_temp_path);
+        unlink_and_free(i->roothash_temp_path);
+        unlink_and_free(i->roothash_signature_temp_path);
+        unlink_and_free(i->verity_temp_path);
+
+        free(i->final_path);
+        free(i->settings_path);
+        free(i->roothash_path);
+        free(i->roothash_signature_path);
+        free(i->verity_path);
+        free(i->image_root);
+        free(i->local);
+        free(i->checksum);
+
+        return mfree(i);
+}
+
+int raw_pull_new(
+                RawPull **ret,
+                sd_event *event,
+                const char *image_root,
+                RawPullFinished on_finished,
+                void *userdata) {
+
+        _cleanup_(curl_glue_unrefp) CurlGlue *g = NULL;
+        _cleanup_(sd_event_unrefp) sd_event *e = NULL;
+        _cleanup_(raw_pull_unrefp) RawPull *i = NULL;
+        _cleanup_free_ char *root = NULL;
+        int r;
+
+        assert(ret);
+
+        root = strdup(image_root ?: "/var/lib/machines");
+        if (!root)
+                return -ENOMEM;
+
+        if (event)
+                e = sd_event_ref(event);
+        else {
+                r = sd_event_default(&e);
+                if (r < 0)
+                        return r;
+        }
+
+        r = curl_glue_new(&g, e);
+        if (r < 0)
+                return r;
+
+        i = new(RawPull, 1);
+        if (!i)
+                return -ENOMEM;
+
+        *i = (RawPull) {
+                .on_finished = on_finished,
+                .userdata = userdata,
+                .image_root = TAKE_PTR(root),
+                .event = TAKE_PTR(e),
+                .glue = TAKE_PTR(g),
+                .offset = UINT64_MAX,
+        };
+
+        i->glue->on_finished = pull_job_curl_on_finished;
+        i->glue->userdata = i;
+
+        *ret = TAKE_PTR(i);
+
+        return 0;
+}
+
+static void raw_pull_report_progress(RawPull *i, RawProgress p) {
+        unsigned percent;
+
+        assert(i);
+
+        switch (p) {
+
+        case RAW_DOWNLOADING: {
+                unsigned remain = 80;
+
+                percent = 0;
+
+                if (i->checksum_job) {
+                        percent += i->checksum_job->progress_percent * 5 / 100;
+                        remain -= 5;
+                }
+
+                if (i->signature_job) {
+                        percent += i->signature_job->progress_percent * 5 / 100;
+                        remain -= 5;
+                }
+
+                if (i->settings_job) {
+                        percent += i->settings_job->progress_percent * 5 / 100;
+                        remain -= 5;
+                }
+
+                if (i->roothash_job) {
+                        percent += i->roothash_job->progress_percent * 5 / 100;
+                        remain -= 5;
+                }
+
+                if (i->roothash_signature_job) {
+                        percent += i->roothash_signature_job->progress_percent * 5 / 100;
+                        remain -= 5;
+                }
+
+                if (i->verity_job) {
+                        percent += i->verity_job->progress_percent * 10 / 100;
+                        remain -= 10;
+                }
+
+                if (i->raw_job)
+                        percent += i->raw_job->progress_percent * remain / 100;
+                break;
+        }
+
+        case RAW_VERIFYING:
+                percent = 80;
+                break;
+
+        case RAW_UNPACKING:
+                percent = 85;
+                break;
+
+        case RAW_FINALIZING:
+                percent = 90;
+                break;
+
+        case RAW_COPYING:
+                percent = 95;
+                break;
+
+        default:
+                assert_not_reached();
+        }
+
+        sd_notifyf(false, "X_IMPORT_PROGRESS=%u%%", percent);
+        log_debug("Combined progress %u%%", percent);
+}
+
+static int raw_pull_maybe_convert_qcow2(RawPull *i) {
+        _cleanup_(unlink_and_freep) char *t = NULL;
+        _cleanup_close_ int converted_fd = -EBADF;
+        _cleanup_free_ char *f = NULL;
+        int r;
+
+        assert(i);
+        assert(i->raw_job);
+        assert(!FLAGS_SET(i->flags, PULL_DIRECT));
+
+        if (!FLAGS_SET(i->flags, PULL_CONVERT_QCOW2))
+                return 0;
+
+        assert(i->final_path);
+        assert(i->raw_job->close_disk_fd);
+
+        r = qcow2_detect(i->raw_job->disk_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, &f);
+        if (r < 0)
+                return log_oom();
+
+        converted_fd = open(f, 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", f);
+
+        t = TAKE_PTR(f);
+
+        (void) import_set_nocow_and_log(converted_fd, t);
+
+        log_info("Unpacking QCOW2 file.");
+
+        r = qcow2_convert(i->raw_job->disk_fd, converted_fd);
+        if (r < 0)
+                return log_error_errno(r, "Failed to convert qcow2 image: %m");
+
+        unlink_and_free(i->temp_path);
+        i->temp_path = TAKE_PTR(t);
+        close_and_replace(i->raw_job->disk_fd, converted_fd);
+
+        return 1;
+}
+
+static int raw_pull_determine_path(
+                RawPull *i,
+                const char *suffix,
+                char **field /* input + output (!) */) {
+        int r;
+
+        assert(i);
+        assert(field);
+
+        if (*field)
+                return 0;
+
+        assert(i->raw_job);
+
+        r = pull_make_path(i->raw_job->url, i->raw_job->etag, i->image_root, ".raw-", suffix, field);
+        if (r < 0)
+                return log_oom();
+
+        return 1;
+}
+
+static int raw_pull_copy_auxiliary_file(
+                RawPull *i,
+                const char *suffix,
+                char **path /* input + output (!) */) {
+
+        const char *local;
+        int r;
+
+        assert(i);
+        assert(suffix);
+        assert(path);
+
+        r = raw_pull_determine_path(i, suffix, path);
+        if (r < 0)
+                return r;
+
+        local = strjoina(i->image_root, "/", i->local, suffix);
+
+        r = copy_file_atomic(
+                        *path,
+                        local,
+                        0644,
+                        COPY_REFLINK |
+                        (FLAGS_SET(i->flags, PULL_FORCE) ? COPY_REPLACE : 0) |
+                        (FLAGS_SET(i->flags, PULL_SYNC) ? COPY_FSYNC_FULL : 0));
+        if (r == -EEXIST)
+                log_warning_errno(r, "File %s already exists, not replacing.", local);
+        else if (r == -ENOENT)
+                log_debug_errno(r, "Skipping creation of auxiliary file, since none was found.");
+        else if (r < 0)
+                log_warning_errno(r, "Failed to copy file %s, ignoring: %m", local);
+        else
+                log_info("Created new file %s.", local);
+
+        return 0;
+}
+
+static int raw_pull_make_local_copy(RawPull *i) {
+        _cleanup_(unlink_and_freep) char *tp = NULL;
+        _cleanup_free_ char *f = NULL;
+        _cleanup_close_ int dfd = -EBADF;
+        const char *p;
+        int r;
+
+        assert(i);
+        assert(i->raw_job);
+        assert(!FLAGS_SET(i->flags, PULL_DIRECT));
+
+        if (!i->local)
+                return 0;
+
+        if (i->raw_job->etag_exists) {
+                /* We have downloaded this one previously, reopen it */
+
+                assert(i->raw_job->disk_fd < 0);
+
+                i->raw_job->disk_fd = open(i->final_path, O_RDONLY|O_NOCTTY|O_CLOEXEC);
+                if (i->raw_job->disk_fd < 0)
+                        return log_error_errno(errno, "Failed to open vendor image: %m");
+        } else {
+                /* We freshly downloaded the image, use it */
+
+                assert(i->raw_job->disk_fd >= 0);
+                assert(i->offset == UINT64_MAX);
+
+                if (lseek(i->raw_job->disk_fd, SEEK_SET, 0) < 0)
+                        return log_error_errno(errno, "Failed to seek to beginning of vendor image: %m");
+        }
+
+        p = strjoina(i->image_root, "/", i->local, ".raw");
+
+        r = tempfn_random(p, NULL, &f);
+        if (r < 0)
+                return log_oom();
+
+        dfd = open(f, O_WRONLY|O_CREAT|O_EXCL|O_NOCTTY|O_CLOEXEC, 0664);
+        if (dfd < 0)
+                return log_error_errno(errno, "Failed to create writable copy of image: %m");
+
+        tp = TAKE_PTR(f);
+
+        /* Turn off COW writing. This should greatly improve performance on COW file systems like btrfs,
+         * since it reduces fragmentation caused by not allowing in-place writes. */
+        (void) import_set_nocow_and_log(dfd, tp);
+
+        r = copy_bytes(i->raw_job->disk_fd, dfd, UINT64_MAX, COPY_REFLINK);
+        if (r < 0)
+                return log_error_errno(r, "Failed to make writable copy of image: %m");
+
+        (void) copy_times(i->raw_job->disk_fd, dfd, COPY_CRTIME);
+        (void) copy_xattr(i->raw_job->disk_fd, NULL, dfd, NULL, 0);
+
+        dfd = safe_close(dfd);
+
+        r = install_file(AT_FDCWD, tp,
+                         AT_FDCWD, p,
+                         (i->flags & PULL_FORCE ? INSTALL_REPLACE : 0) |
+                         (i->flags & PULL_READ_ONLY ? INSTALL_READ_ONLY : 0) |
+                         (i->flags & PULL_SYNC ? INSTALL_FSYNC_FULL : 0));
+        if (r < 0)
+                return log_error_errno(errno, "Failed to move local image into place '%s': %m", p);
+
+        tp = mfree(tp);
+
+        log_info("Created new local image '%s'.", i->local);
+
+        if (FLAGS_SET(i->flags, PULL_SETTINGS)) {
+                r = raw_pull_copy_auxiliary_file(i, ".nspawn", &i->settings_path);
+                if (r < 0)
+                        return r;
+        }
+
+        if (FLAGS_SET(i->flags, PULL_ROOTHASH)) {
+                r = raw_pull_copy_auxiliary_file(i, ".roothash", &i->roothash_path);
+                if (r < 0)
+                        return r;
+        }
+
+        if (FLAGS_SET(i->flags, PULL_ROOTHASH_SIGNATURE)) {
+                r = raw_pull_copy_auxiliary_file(i, ".roothash.p7s", &i->roothash_signature_path);
+                if (r < 0)
+                        return r;
+        }
+
+        if (FLAGS_SET(i->flags, PULL_VERITY)) {
+                r = raw_pull_copy_auxiliary_file(i, ".verity", &i->verity_path);
+                if (r < 0)
+                        return r;
+        }
+
+        return 0;
+}
+
+static bool raw_pull_is_done(RawPull *i) {
+        assert(i);
+        assert(i->raw_job);
+
+        if (!PULL_JOB_IS_COMPLETE(i->raw_job))
+                return false;
+        if (i->checksum_job && !PULL_JOB_IS_COMPLETE(i->checksum_job))
+                return false;
+        if (i->signature_job && !PULL_JOB_IS_COMPLETE(i->signature_job))
+                return false;
+        if (i->settings_job && !PULL_JOB_IS_COMPLETE(i->settings_job))
+                return false;
+        if (i->roothash_job && !PULL_JOB_IS_COMPLETE(i->roothash_job))
+                return false;
+        if (i->roothash_signature_job && !PULL_JOB_IS_COMPLETE(i->roothash_signature_job))
+                return false;
+        if (i->verity_job && !PULL_JOB_IS_COMPLETE(i->verity_job))
+                return false;
+
+        return true;
+}
+
+static int raw_pull_rename_auxiliary_file(
+                RawPull *i,
+                const char *suffix,
+                char **temp_path,
+                char **path) {
+
+        int r;
+
+        assert(i);
+        assert(path);
+        assert(temp_path);
+        assert(*temp_path);
+        assert(suffix);
+
+        /* Regenerate final name for this auxiliary file, we might know the etag of the file now, and we should
+         * incorporate it in the file name if we can */
+        *path = mfree(*path);
+        r = raw_pull_determine_path(i, suffix, path);
+        if (r < 0)
+                return r;
+
+        r = install_file(
+                        AT_FDCWD, *temp_path,
+                        AT_FDCWD, *path,
+                        INSTALL_READ_ONLY|
+                        (i->flags & PULL_SYNC ? INSTALL_FSYNC_FULL : 0));
+        if (r < 0)
+                return log_error_errno(r, "Failed to move '%s' into place: %m", *path);
+
+        *temp_path = mfree(*temp_path);
+        return 1;
+}
+
+static void raw_pull_job_on_finished(PullJob *j) {
+        RawPull *i;
+        PullJob *jj;
+        int r;
+
+        assert(j);
+        assert(j->userdata);
+
+        i = j->userdata;
+
+        if (j->error != 0) {
+                /* Only the main job and the checksum job are fatal if they fail. The other fails are just
+                 * "decoration", that we'll download if we can. The signature job isn't fatal here because we
+                 * might not actually need it in case Suse style signatures are used, that are inline in the
+                 * checksum file. */
+
+                if (j == i->raw_job) {
+                        if (j->error == ENOMEDIUM) /* HTTP 404 */
+                                r = log_error_errno(j->error, "Failed to retrieve image file. (Wrong URL?)");
+                        else
+                                r = log_error_errno(j->error, "Failed to retrieve image file.");
+                        goto finish;
+                } else if (j == i->checksum_job) {
+                        r = log_error_errno(j->error, "Failed to retrieve SHA256 checksum, cannot verify. (Try --verify=no?)");
+                        goto finish;
+                } else if (j == i->signature_job)
+                        log_debug_errno(j->error, "Signature job for %s failed, proceeding for now.", j->url);
+                else if (j == i->settings_job)
+                        log_info_errno(j->error, "Settings file could not be retrieved, proceeding without.");
+                else if (j == i->roothash_job)
+                        log_info_errno(j->error, "Root hash file could not be retrieved, proceeding without.");
+                else if (j == i->roothash_signature_job)
+                        log_info_errno(j->error, "Root hash signature file could not be retrieved, proceeding without.");
+                else if (j == i->verity_job)
+                        log_info_errno(j->error, "Verity integrity file could not be retrieved, proceeding without.");
+                else
+                        assert_not_reached();
+        }
+
+        /* This is invoked if either the download completed successfully, or the download was skipped because
+         * we already have the etag. In this case ->etag_exists is true.
+         *
+         * We only do something when we got all files */
+
+        if (!raw_pull_is_done(i))
+                return;
+
+        if (i->signature_job && i->signature_job->error != 0) {
+                VerificationStyle style;
+                PullJob *verify_job;
+
+                /* The signature job failed. Let's see if we actually need it */
+
+                verify_job = i->checksum_job ?: i->raw_job; /* if the checksum job doesn't exist this must be
+                                                             * because the main job is the checksum file
+                                                             * itself */
+
+                assert(verify_job);
+
+                r = verification_style_from_url(verify_job->url, &style);
+                if (r < 0) {
+                        log_error_errno(r, "Failed to determine verification style from checksum URL: %m");
+                        goto finish;
+                }
+
+                if (style == VERIFICATION_PER_DIRECTORY) { /* A failed signature file download only matters
+                                                            * in per-directory verification mode, since only
+                                                            * then the signature is detached, and thus a file
+                                                            * of its own. */
+                        r = log_error_errno(i->signature_job->error,
+                                            "Failed to retrieve signature file, cannot verify. (Try --verify=no?)");
+                        goto finish;
+                }
+        }
+
+        /* Let's close these auxiliary files now, we don't need access to them anymore. */
+        FOREACH_POINTER(jj, i->settings_job, i->roothash_job, i->roothash_signature_job, i->verity_job)
+                pull_job_close_disk_fd(jj);
+
+        if (!i->raw_job->etag_exists) {
+                raw_pull_report_progress(i, RAW_VERIFYING);
+
+                r = pull_verify(i->verify,
+                                i->checksum,
+                                i->raw_job,
+                                i->checksum_job,
+                                i->signature_job,
+                                i->settings_job,
+                                i->roothash_job,
+                                i->roothash_signature_job,
+                                i->verity_job);
+                if (r < 0)
+                        goto finish;
+        }
+
+        if (i->flags & PULL_DIRECT) {
+                assert(!i->settings_job);
+                assert(!i->roothash_job);
+                assert(!i->roothash_signature_job);
+                assert(!i->verity_job);
+
+                raw_pull_report_progress(i, RAW_FINALIZING);
+
+                if (i->local) {
+                        r = install_file(AT_FDCWD, i->local,
+                                         AT_FDCWD, NULL,
+                                         ((i->flags & PULL_READ_ONLY) && i->offset == UINT64_MAX ? INSTALL_READ_ONLY : 0) |
+                                         (i->flags & PULL_SYNC ? INSTALL_FSYNC_FULL : 0));
+                        if (r < 0) {
+                                log_error_errno(r, "Failed to finalize raw file to '%s': %m", i->local);
+                                goto finish;
+                        }
+                }
+        } else {
+                r = raw_pull_determine_path(i, ".raw", &i->final_path);
+                if (r < 0)
+                        goto finish;
+
+                if (!i->raw_job->etag_exists) {
+                        /* This is a new download, verify it, and move it into place */
+
+                        assert(i->temp_path);
+                        assert(i->final_path);
+
+                        raw_pull_report_progress(i, RAW_UNPACKING);
+
+                        r = raw_pull_maybe_convert_qcow2(i);
+                        if (r < 0)
+                                goto finish;
+
+                        raw_pull_report_progress(i, RAW_FINALIZING);
+
+                        r = install_file(AT_FDCWD, i->temp_path,
+                                         AT_FDCWD, i->final_path,
+                                         INSTALL_READ_ONLY|
+                                         (i->flags & PULL_SYNC ? INSTALL_FSYNC_FULL : 0));
+                        if (r < 0) {
+                                log_error_errno(r, "Failed to move raw file to '%s': %m", i->final_path);
+                                goto finish;
+                        }
+
+                        i->temp_path = mfree(i->temp_path);
+
+                        if (i->settings_job &&
+                            i->settings_job->error == 0) {
+                                r = raw_pull_rename_auxiliary_file(i, ".nspawn", &i->settings_temp_path, &i->settings_path);
+                                if (r < 0)
+                                        goto finish;
+                        }
+
+                        if (i->roothash_job &&
+                            i->roothash_job->error == 0) {
+                                r = raw_pull_rename_auxiliary_file(i, ".roothash", &i->roothash_temp_path, &i->roothash_path);
+                                if (r < 0)
+                                        goto finish;
+                        }
+
+                        if (i->roothash_signature_job &&
+                            i->roothash_signature_job->error == 0) {
+                                r = raw_pull_rename_auxiliary_file(i, ".roothash.p7s", &i->roothash_signature_temp_path, &i->roothash_signature_path);
+                                if (r < 0)
+                                        goto finish;
+                        }
+
+                        if (i->verity_job &&
+                            i->verity_job->error == 0) {
+                                r = raw_pull_rename_auxiliary_file(i, ".verity", &i->verity_temp_path, &i->verity_path);
+                                if (r < 0)
+                                        goto finish;
+                        }
+                }
+
+                raw_pull_report_progress(i, RAW_COPYING);
+
+                r = raw_pull_make_local_copy(i);
+                if (r < 0)
+                        goto finish;
+        }
+
+        r = 0;
+
+finish:
+        if (i->on_finished)
+                i->on_finished(i, r, i->userdata);
+        else
+                sd_event_exit(i->event, r);
+}
+
+static int raw_pull_job_on_open_disk_generic(
+                RawPull *i,
+                PullJob *j,
+                const char *extra,
+                char **temp_path /* input + output */) {
+
+        int r;
+
+        assert(i);
+        assert(j);
+        assert(extra);
+        assert(temp_path);
+
+        assert(!FLAGS_SET(i->flags, PULL_DIRECT));
+
+        if (!*temp_path) {
+                r = tempfn_random_child(i->image_root, extra, temp_path);
+                if (r < 0)
+                        return log_oom();
+        }
+
+        (void) mkdir_parents_label(*temp_path, 0700);
+
+        j->disk_fd = open(*temp_path, O_RDWR|O_CREAT|O_EXCL|O_NOCTTY|O_CLOEXEC, 0664);
+        if (j->disk_fd < 0)
+                return log_error_errno(errno, "Failed to create %s: %m", *temp_path);
+
+        return 0;
+}
+
+static int raw_pull_job_on_open_disk_raw(PullJob *j) {
+        RawPull *i;
+        int r;
+
+        assert(j);
+        assert(j->userdata);
+
+        i = j->userdata;
+        assert(i->raw_job == j);
+        assert(j->disk_fd < 0);
+
+        if (i->flags & PULL_DIRECT) {
+
+                if (!i->local) { /* If no local name specified, the pull job will write its data to stdout */
+                        j->disk_fd = STDOUT_FILENO;
+                        j->close_disk_fd = false;
+                        return 0;
+                }
+
+                (void) mkdir_parents_label(i->local, 0700);
+
+                j->disk_fd = open(i->local, O_RDWR|O_NOCTTY|O_CLOEXEC|(i->offset == UINT64_MAX ? O_TRUNC|O_CREAT : 0), 0664);
+                if (j->disk_fd < 0)
+                        return log_error_errno(errno, "Failed to open destination '%s': %m", i->local);
+
+                if (i->offset == UINT64_MAX)
+                        (void) import_set_nocow_and_log(j->disk_fd, i->local);
+
+        } else {
+                r = raw_pull_job_on_open_disk_generic(i, j, "raw", &i->temp_path);
+                if (r < 0)
+                        return r;
+
+                assert(i->offset == UINT64_MAX);
+                (void) import_set_nocow_and_log(j->disk_fd, i->temp_path);
+        }
+
+        return 0;
+}
+
+static int raw_pull_job_on_open_disk_settings(PullJob *j) {
+        RawPull *i;
+
+        assert(j);
+        assert(j->userdata);
+
+        i = j->userdata;
+        assert(i->settings_job == j);
+
+        return raw_pull_job_on_open_disk_generic(i, j, "settings", &i->settings_temp_path);
+}
+
+static int raw_pull_job_on_open_disk_roothash(PullJob *j) {
+        RawPull *i;
+
+        assert(j);
+        assert(j->userdata);
+
+        i = j->userdata;
+        assert(i->roothash_job == j);
+
+        return raw_pull_job_on_open_disk_generic(i, j, "roothash", &i->roothash_temp_path);
+}
+
+static int raw_pull_job_on_open_disk_roothash_signature(PullJob *j) {
+        RawPull *i;
+
+        assert(j);
+        assert(j->userdata);
+
+        i = j->userdata;
+        assert(i->roothash_signature_job == j);
+
+        return raw_pull_job_on_open_disk_generic(i, j, "roothash.p7s", &i->roothash_signature_temp_path);
+}
+
+static int raw_pull_job_on_open_disk_verity(PullJob *j) {
+        RawPull *i;
+
+        assert(j);
+        assert(j->userdata);
+
+        i = j->userdata;
+        assert(i->verity_job == j);
+
+        return raw_pull_job_on_open_disk_generic(i, j, "verity", &i->verity_temp_path);
+}
+
+static void raw_pull_job_on_progress(PullJob *j) {
+        RawPull *i;
+
+        assert(j);
+        assert(j->userdata);
+
+        i = j->userdata;
+
+        raw_pull_report_progress(i, RAW_DOWNLOADING);
+}
+
+int raw_pull_start(
+                RawPull *i,
+                const char *url,
+                const char *local,
+                uint64_t offset,
+                uint64_t size_max,
+                PullFlags flags,
+                ImportVerify verify,
+                const char *checksum) {
+
+        PullJob *j;
+        int r;
+
+        assert(i);
+        assert(url);
+        assert(verify == _IMPORT_VERIFY_INVALID || verify < _IMPORT_VERIFY_MAX);
+        assert(verify == _IMPORT_VERIFY_INVALID || verify >= 0);
+        assert((verify < 0) || !checksum);
+        assert(!(flags & ~PULL_FLAGS_MASK_RAW));
+        assert(offset == UINT64_MAX || FLAGS_SET(flags, PULL_DIRECT));
+        assert(!(flags & (PULL_SETTINGS|PULL_ROOTHASH|PULL_ROOTHASH_SIGNATURE|PULL_VERITY)) || !(flags & PULL_DIRECT));
+        assert(!(flags & (PULL_SETTINGS|PULL_ROOTHASH|PULL_ROOTHASH_SIGNATURE|PULL_VERITY)) || !checksum);
+
+        if (!http_url_is_valid(url) && !file_url_is_valid(url))
+                return -EINVAL;
+
+        if (local && !pull_validate_local(local, flags))
+                return -EINVAL;
+
+        if (i->raw_job)
+                return -EBUSY;
+
+        r = free_and_strdup(&i->local, local);
+        if (r < 0)
+                return r;
+
+        r = free_and_strdup(&i->checksum, checksum);
+        if (r < 0)
+                return r;
+
+        i->flags = flags;
+        i->verify = verify;
+
+        /* Queue job for the image itself */
+        r = pull_job_new(&i->raw_job, url, i->glue, i);
+        if (r < 0)
+                return r;
+
+        i->raw_job->on_finished = raw_pull_job_on_finished;
+        i->raw_job->on_open_disk = raw_pull_job_on_open_disk_raw;
+
+        if (checksum)
+                i->raw_job->calc_checksum = true;
+        else if (verify != IMPORT_VERIFY_NO) {
+                /* Calculate checksum of the main download unless the users asks for a SHA256SUM file or its
+                 * signature, which we let gpg verify instead. */
+
+                r = pull_url_needs_checksum(url);
+                if (r < 0)
+                        return r;
+
+                i->raw_job->calc_checksum = r;
+                i->raw_job->force_memory = true; /* make sure this is both written to disk if that's
+                                                  * requested and into memory, since we need to verify it */
+        }
+
+        if (size_max != UINT64_MAX)
+                i->raw_job->uncompressed_max = size_max;
+        if (offset != UINT64_MAX)
+                i->raw_job->offset = i->offset = offset;
+
+        if (!FLAGS_SET(flags, PULL_DIRECT)) {
+                r = pull_find_old_etags(url, i->image_root, DT_REG, ".raw-", ".raw", &i->raw_job->old_etags);
+                if (r < 0)
+                        return r;
+        }
+
+        r = pull_make_verification_jobs(
+                        &i->checksum_job,
+                        &i->signature_job,
+                        verify,
+                        i->checksum,
+                        url,
+                        i->glue,
+                        raw_pull_job_on_finished,
+                        i);
+        if (r < 0)
+                return r;
+
+        if (FLAGS_SET(flags, PULL_SETTINGS)) {
+                r = pull_make_auxiliary_job(
+                                &i->settings_job,
+                                url,
+                                raw_strip_suffixes,
+                                ".nspawn",
+                                verify,
+                                i->glue,
+                                raw_pull_job_on_open_disk_settings,
+                                raw_pull_job_on_finished,
+                                i);
+                if (r < 0)
+                        return r;
+        }
+
+        if (FLAGS_SET(flags, PULL_ROOTHASH)) {
+                r = pull_make_auxiliary_job(
+                                &i->roothash_job,
+                                url,
+                                raw_strip_suffixes,
+                                ".roothash",
+                                verify,
+                                i->glue,
+                                raw_pull_job_on_open_disk_roothash,
+                                raw_pull_job_on_finished,
+                                i);
+                if (r < 0)
+                        return r;
+        }
+
+        if (FLAGS_SET(flags, PULL_ROOTHASH_SIGNATURE)) {
+                r = pull_make_auxiliary_job(
+                                &i->roothash_signature_job,
+                                url,
+                                raw_strip_suffixes,
+                                ".roothash.p7s",
+                                verify,
+                                i->glue,
+                                raw_pull_job_on_open_disk_roothash_signature,
+                                raw_pull_job_on_finished,
+                                i);
+                if (r < 0)
+                        return r;
+        }
+
+        if (FLAGS_SET(flags, PULL_VERITY)) {
+                r = pull_make_auxiliary_job(
+                                &i->verity_job,
+                                url,
+                                raw_strip_suffixes,
+                                ".verity",
+                                verify,
+                                i->glue,
+                                raw_pull_job_on_open_disk_verity,
+                                raw_pull_job_on_finished,
+                                i);
+                if (r < 0)
+                        return r;
+        }
+
+        FOREACH_POINTER(j,
+                        i->raw_job,
+                        i->checksum_job,
+                        i->signature_job,
+                        i->settings_job,
+                        i->roothash_job,
+                        i->roothash_signature_job,
+                        i->verity_job) {
+
+                if (!j)
+                        continue;
+
+                j->on_progress = raw_pull_job_on_progress;
+                j->sync = FLAGS_SET(flags, PULL_SYNC);
+
+                r = pull_job_begin(j);
+                if (r < 0)
+                        return r;
+        }
+
+        return 0;
+}