importd: for .raw and .tar images, try to download .nspawn settings file too

8 files changed, 411 insertions, 46 deletions

diff --git a/src/import/pull-common.c b/src/import/pull-common.c
index 652277e4be..b1681bed17 100644
--- a/src/import/pull-common.c
+++ b/src/import/pull-common.c
@@ -34,7 +34,14 @@
 
 #define FILENAME_ESCAPE "/.#\"\'"
 
-int pull_find_old_etags(const char *url, const char *image_root, int dt, const char *prefix, const char *suffix, char ***etags) {
+int pull_find_old_etags(
+                const char *url,
+                const char *image_root,
+                int dt,
+                const char *prefix,
+                const char *suffix,
+                char ***etags) {
+
         _cleanup_free_ char *escaped_url = NULL;
         _cleanup_closedir_ DIR *d = NULL;
         _cleanup_strv_free_ char **l = NULL;
@@ -173,6 +180,49 @@ int pull_make_path(const char *url, const char *etag, const char *image_root, co
         return 0;
 }
 
+int pull_make_settings_job(
+                PullJob **ret,
+                const char *url,
+                CurlGlue *glue,
+                PullJobFinished on_finished,
+                void *userdata) {
+
+        _cleanup_free_ char *last_component = NULL, *ll = NULL, *settings_url = NULL;
+        _cleanup_(pull_job_unrefp) PullJob *job = NULL;
+        const char *q;
+        int r;
+
+        assert(ret);
+        assert(url);
+        assert(glue);
+
+        r = import_url_last_component(url, &last_component);
+        if (r < 0)
+                return r;
+
+        r = tar_strip_suffixes(last_component, &ll);
+        if (r < 0)
+                return r;
+
+        q = strjoina(ll, ".nspawn");
+
+        r = import_url_change_last_component(url, q, &settings_url);
+        if (r < 0)
+                return r;
+
+        r = pull_job_new(&job, settings_url, glue, userdata);
+        if (r < 0)
+                return r;
+
+        job->on_finished = on_finished;
+        job->compressed_max = job->uncompressed_max = 1ULL * 1024ULL * 1024ULL;
+
+        *ret = job;
+        job = NULL;
+
+        return 0;
+}
+
 int pull_make_verification_jobs(
                 PullJob **ret_checksum_job,
                 PullJob **ret_signature_job,
@@ -232,8 +282,8 @@ int pull_make_verification_jobs(
         return 0;
 }
 
-int pull_verify(
-                PullJob *main_job,
+int pull_verify(PullJob *main_job,
+                PullJob *settings_job,
                 PullJob *checksum_job,
                 PullJob *signature_job) {
 
@@ -278,12 +328,47 @@ int pull_verify(
                    strlen(line));
 
         if (!p || (p != (char*) checksum_job->payload && p[-1] != '\n')) {
-                log_error("Checksum did not check out, payload has been tempered with.");
+                log_error("DOWNLOAD INVALID: Checksum did not check out, payload has been tempered with.");
                 return -EBADMSG;
         }
 
         log_info("SHA256 checksum of %s is valid.", main_job->url);
 
+        assert(!settings_job || settings_job->state == PULL_JOB_DONE);
+
+        if (settings_job &&
+            settings_job->error == 0 &&
+            !settings_job->etag_exists) {
+
+                _cleanup_free_ char *settings_fn = NULL;
+
+                assert(settings_job->calc_checksum);
+                assert(settings_job->checksum);
+
+                r = import_url_last_component(settings_job->url, &settings_fn);
+                if (r < 0)
+                        return log_oom();
+
+                if (!filename_is_valid(settings_fn)) {
+                        log_error("Cannot verify checksum, could not determine server-side settings file name.");
+                        return -EBADMSG;
+                }
+
+                line = strjoina(settings_job->checksum, " *", settings_fn, "\n");
+
+                p = memmem(checksum_job->payload,
+                           checksum_job->payload_size,
+                           line,
+                           strlen(line));
+
+                if (!p || (p != (char*) checksum_job->payload && p[-1] != '\n')) {
+                        log_error("DOWNLOAD INVALID: Checksum of settings file did not checkout, settings file has been tempered with.");
+                        return -EBADMSG;
+                }
+
+                log_info("SHA256 checksum of %s is valid.", settings_job->url);
+        }
+
         if (!signature_job)
                 return 0;
 
@@ -407,7 +492,7 @@ int pull_verify(
         if (r < 0)
                 goto finish;
         if (r > 0) {
-                log_error("Signature verification failed.");
+                log_error("DOWNLOAD INVALID: Signature verification failed.");
                 r = -EBADMSG;
         } else {
                 log_info("Signature verification succeeded.");
@@ -416,7 +501,7 @@ int pull_verify(
 
 finish:
         if (sig_file >= 0)
-                unlink(sig_file_path);
+                (void) unlink(sig_file_path);
 
         if (gpg_home_created)
                 (void) rm_rf(gpg_home, REMOVE_ROOT|REMOVE_PHYSICAL);
diff --git a/src/import/pull-common.h b/src/import/pull-common.h
index bb9cf3efc1..7e6db1862c 100644
--- a/src/import/pull-common.h
+++ b/src/import/pull-common.h
@@ -32,5 +32,7 @@ int pull_find_old_etags(const char *url, const char *root, int dt, const char *p
 
 int pull_make_path(const char *url, const char *etag, const char *image_root, const char *prefix, const char *suffix, char **ret);
 
+int pull_make_settings_job(PullJob **ret, const char *url, CurlGlue *glue, PullJobFinished on_finished, void *userdata);
 int pull_make_verification_jobs(PullJob **ret_checksum_job, PullJob **ret_signature_job, ImportVerify verify, const char *url, CurlGlue *glue, PullJobFinished on_finished, void *userdata);
-int pull_verify(PullJob *main_job, PullJob *checksum_job, PullJob *signature_job);
+
+int pull_verify(PullJob *main_job, PullJob *settings_job, PullJob *checksum_job, PullJob *signature_job);
diff --git a/src/import/pull-job.h b/src/import/pull-job.h
index 3239aeac20..1777bf1c33 100644
--- a/src/import/pull-job.h
+++ b/src/import/pull-job.h
@@ -44,7 +44,7 @@ typedef enum PullJobState {
         _PULL_JOB_STATE_INVALID = -1,
 } PullJobState;
 
-#define PULL_JOB_STATE_IS_COMPLETE(j) (IN_SET((j)->state, PULL_JOB_DONE, PULL_JOB_FAILED))
+#define PULL_JOB_IS_COMPLETE(j) (IN_SET((j)->state, PULL_JOB_DONE, PULL_JOB_FAILED))
 
 typedef enum PullJobCompression {
         PULL_JOB_UNCOMPRESSED,
diff --git a/src/import/pull-raw.c b/src/import/pull-raw.c
index d0e0faa261..44e029ef98 100644
--- a/src/import/pull-raw.c
+++ b/src/import/pull-raw.c
@@ -57,6 +57,7 @@ struct RawPull {
         char *image_root;
 
         PullJob *raw_job;
+        PullJob *settings_job;
         PullJob *checksum_job;
         PullJob *signature_job;
 
@@ -66,9 +67,13 @@ struct RawPull {
         char *local;
         bool force_local;
         bool grow_machine_directory;
+        bool settings;
 
-        char *temp_path;
         char *final_path;
+        char *temp_path;
+
+        char *settings_path;
+        char *settings_temp_path;
 
         ImportVerify verify;
 };
@@ -78,6 +83,7 @@ RawPull* raw_pull_unref(RawPull *i) {
                 return NULL;
 
         pull_job_unref(i->raw_job);
+        pull_job_unref(i->settings_job);
         pull_job_unref(i->checksum_job);
         pull_job_unref(i->signature_job);
 
@@ -89,7 +95,13 @@ RawPull* raw_pull_unref(RawPull *i) {
                 free(i->temp_path);
         }
 
+        if (i->settings_temp_path) {
+                (void) unlink(i->settings_temp_path);
+                free(i->settings_temp_path);
+        }
+
         free(i->final_path);
+        free(i->settings_path);
         free(i->image_root);
         free(i->local);
         free(i);
@@ -155,6 +167,11 @@ static void raw_pull_report_progress(RawPull *i, RawProgress p) {
 
                 percent = 0;
 
+                if (i->settings_job) {
+                        percent += i->settings_job->progress_percent * 5 / 100;
+                        remain -= 5;
+                }
+
                 if (i->checksum_job) {
                         percent += i->checksum_job->progress_percent * 5 / 100;
                         remain -= 5;
@@ -253,17 +270,17 @@ static int raw_pull_make_local_copy(RawPull *i) {
         if (!i->local)
                 return 0;
 
+        if (!i->final_path) {
+                r = pull_make_path(i->raw_job->url, i->raw_job->etag, i->image_root, ".raw-", ".raw", &i->final_path);
+                if (r < 0)
+                        return log_oom();
+        }
+
         if (i->raw_job->etag_exists) {
                 /* We have downloaded this one previously, reopen it */
 
                 assert(i->raw_job->disk_fd < 0);
 
-                if (!i->final_path) {
-                        r = pull_make_path(i->raw_job->url, i->raw_job->etag, i->image_root, ".raw-", ".raw", &i->final_path);
-                        if (r < 0)
-                                return log_oom();
-                }
-
                 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");
@@ -315,6 +332,28 @@ static int raw_pull_make_local_copy(RawPull *i) {
         }
 
         log_info("Created new local image '%s'.", i->local);
+
+        if (i->settings) {
+                const char *local_settings;
+                assert(i->settings_job);
+
+                if (!i->settings_path) {
+                        r = pull_make_path(i->settings_job->url, i->settings_job->etag, i->image_root, ".settings-", NULL, &i->settings_path);
+                        if (r < 0)
+                                return log_oom();
+                }
+
+                local_settings = strjoina(i->image_root, "/", i->local, ".nspawn");
+
+                r = copy_file_atomic(i->settings_path, local_settings, 0644, i->force_local, 0);
+                if (r == -EEXIST)
+                        log_warning_errno(r, "Settings file %s already exists, not replacing.", local_settings);
+                else if (r < 0 && r != -ENOENT)
+                        log_warning_errno(r, "Failed to copy settings files %s: %m", local_settings);
+
+                log_info("Create new settings file '%s.nspawn'", i->local);
+        }
+
         return 0;
 }
 
@@ -322,11 +361,13 @@ static bool raw_pull_is_done(RawPull *i) {
         assert(i);
         assert(i->raw_job);
 
-        if (i->raw_job->state != PULL_JOB_DONE)
+        if (!PULL_JOB_IS_COMPLETE(i->raw_job))
                 return false;
-        if (i->checksum_job && i->checksum_job->state != PULL_JOB_DONE)
+        if (i->settings_job && !PULL_JOB_IS_COMPLETE(i->settings_job))
                 return false;
-        if (i->signature_job && i->signature_job->state != PULL_JOB_DONE)
+        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;
 
         return true;
@@ -340,7 +381,10 @@ static void raw_pull_job_on_finished(PullJob *j) {
         assert(j->userdata);
 
         i = j->userdata;
-        if (j->error != 0) {
+        if (j == i->settings_job) {
+                if (j->error != 0)
+                        log_info_errno(j->error, "Settings file could not be retrieved, proceeding without.");
+        } else if (j->error != 0) {
                 if (j == i->checksum_job)
                         log_error_errno(j->error, "Failed to retrieve SHA256 checksum, cannot verify. (Try --verify=no?)");
                 else if (j == i->signature_job)
@@ -362,13 +406,16 @@ static void raw_pull_job_on_finished(PullJob *j) {
         if (!raw_pull_is_done(i))
                 return;
 
+        if (i->settings_job)
+                i->settings_job->disk_fd = safe_close(i->settings_job->disk_fd);
+
         if (!i->raw_job->etag_exists) {
                 /* This is a new download, verify it, and move it into place */
                 assert(i->raw_job->disk_fd >= 0);
 
                 raw_pull_report_progress(i, RAW_VERIFYING);
 
-                r = pull_verify(i->raw_job, i->checksum_job, i->signature_job);
+                r = pull_verify(i->raw_job, i->settings_job, i->checksum_job, i->signature_job);
                 if (r < 0)
                         goto finish;
 
@@ -390,8 +437,27 @@ static void raw_pull_job_on_finished(PullJob *j) {
                         goto finish;
                 }
 
-                free(i->temp_path);
-                i->temp_path = NULL;
+                i->temp_path = mfree(i->temp_path);
+
+                if (i->settings_job &&
+                    i->settings_job->error == 0 &&
+                    !i->settings_job->etag_exists) {
+
+                        assert(i->settings_temp_path);
+                        assert(i->settings_path);
+
+                        r = import_make_read_only(i->settings_temp_path);
+                        if (r < 0)
+                                goto finish;
+
+                        r = rename_noreplace(AT_FDCWD, i->settings_temp_path, AT_FDCWD, i->settings_path);
+                        if (r < 0) {
+                                log_error_errno(r, "Failed to rename settings file: %m");
+                                goto finish;
+                        }
+
+                        i->settings_temp_path = mfree(i->settings_temp_path);
+                }
         }
 
         raw_pull_report_progress(i, RAW_COPYING);
@@ -409,7 +475,7 @@ finish:
                 sd_event_exit(i->event, r);
 }
 
-static int raw_pull_job_on_open_disk(PullJob *j) {
+static int raw_pull_job_on_open_disk_raw(PullJob *j) {
         RawPull *i;
         int r;
 
@@ -442,6 +508,35 @@ static int raw_pull_job_on_open_disk(PullJob *j) {
         return 0;
 }
 
+static int raw_pull_job_on_open_disk_settings(PullJob *j) {
+        RawPull *i;
+        int r;
+
+        assert(j);
+        assert(j->userdata);
+
+        i = j->userdata;
+        assert(i->settings_job == j);
+        assert(!i->settings_path);
+        assert(!i->settings_temp_path);
+
+        r = pull_make_path(j->url, j->etag, i->image_root, ".settings-", NULL, &i->settings_path);
+        if (r < 0)
+                return log_oom();
+
+        r = tempfn_random(i->settings_path, NULL, &i->settings_temp_path);
+        if (r < 0)
+                return log_oom();
+
+        mkdir_parents_label(i->settings_temp_path, 0700);
+
+        j->disk_fd = open(i->settings_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", i->settings_temp_path);
+
+        return 0;
+}
+
 static void raw_pull_job_on_progress(PullJob *j) {
         RawPull *i;
 
@@ -453,7 +548,14 @@ static void raw_pull_job_on_progress(PullJob *j) {
         raw_pull_report_progress(i, RAW_DOWNLOADING);
 }
 
-int raw_pull_start(RawPull *i, const char *url, const char *local, bool force_local, ImportVerify verify) {
+int raw_pull_start(
+                RawPull *i,
+                const char *url,
+                const char *local,
+                bool force_local,
+                ImportVerify verify,
+                bool settings) {
+
         int r;
 
         assert(i);
@@ -472,8 +574,10 @@ int raw_pull_start(RawPull *i, const char *url, const char *local, bool force_lo
         r = free_and_strdup(&i->local, local);
         if (r < 0)
                 return r;
+
         i->force_local = force_local;
         i->verify = verify;
+        i->settings = settings;
 
         /* Queue job for the image itself */
         r = pull_job_new(&i->raw_job, url, i->glue, i);
@@ -481,7 +585,7 @@ int raw_pull_start(RawPull *i, const char *url, const char *local, bool force_lo
                 return r;
 
         i->raw_job->on_finished = raw_pull_job_on_finished;
-        i->raw_job->on_open_disk = raw_pull_job_on_open_disk;
+        i->raw_job->on_open_disk = raw_pull_job_on_open_disk_raw;
         i->raw_job->on_progress = raw_pull_job_on_progress;
         i->raw_job->calc_checksum = verify != IMPORT_VERIFY_NO;
         i->raw_job->grow_machine_directory = i->grow_machine_directory;
@@ -490,6 +594,20 @@ int raw_pull_start(RawPull *i, const char *url, const char *local, bool force_lo
         if (r < 0)
                 return r;
 
+        if (settings) {
+                r = pull_make_settings_job(&i->settings_job, url, i->glue, raw_pull_job_on_finished, i);
+                if (r < 0)
+                        return r;
+
+                i->settings_job->on_open_disk = raw_pull_job_on_open_disk_settings;
+                i->settings_job->on_progress = raw_pull_job_on_progress;
+                i->settings_job->calc_checksum = verify != IMPORT_VERIFY_NO;
+
+                r = pull_find_old_etags(i->settings_job->url, i->image_root, DT_REG, ".settings-", NULL, &i->settings_job->old_etags);
+                if (r < 0)
+                        return r;
+        }
+
         r = pull_make_verification_jobs(&i->checksum_job, &i->signature_job, verify, url, i->glue, raw_pull_job_on_finished, i);
         if (r < 0)
                 return r;
@@ -498,6 +616,12 @@ int raw_pull_start(RawPull *i, const char *url, const char *local, bool force_lo
         if (r < 0)
                 return r;
 
+        if (i->settings_job) {
+                r = pull_job_begin(i->settings_job);
+                if (r < 0)
+                        return r;
+        }
+
         if (i->checksum_job) {
                 i->checksum_job->on_progress = raw_pull_job_on_progress;
 
diff --git a/src/import/pull-raw.h b/src/import/pull-raw.h
index 808f7be818..b03b4f5c92 100644
--- a/src/import/pull-raw.h
+++ b/src/import/pull-raw.h
@@ -34,4 +34,4 @@ RawPull* raw_pull_unref(RawPull *pull);
 
 DEFINE_TRIVIAL_CLEANUP_FUNC(RawPull*, raw_pull_unref);
 
-int raw_pull_start(RawPull *pull, const char *url, const char *local, bool force_local, ImportVerify verify);
+int raw_pull_start(RawPull *pull, const char *url, const char *local, bool force_local, ImportVerify verify, bool settings);
diff --git a/src/import/pull-tar.c b/src/import/pull-tar.c
index d38a2158c4..563765d83d 100644
--- a/src/import/pull-tar.c
+++ b/src/import/pull-tar.c
@@ -55,6 +55,7 @@ struct TarPull {
         char *image_root;
 
         PullJob *tar_job;
+        PullJob *settings_job;
         PullJob *checksum_job;
         PullJob *signature_job;
 
@@ -64,11 +65,15 @@ struct TarPull {
         char *local;
         bool force_local;
         bool grow_machine_directory;
+        bool settings;
 
         pid_t tar_pid;
 
-        char *temp_path;
         char *final_path;
+        char *temp_path;
+
+        char *settings_path;
+        char *settings_temp_path;
 
         ImportVerify verify;
 };
@@ -83,6 +88,7 @@ TarPull* tar_pull_unref(TarPull *i) {
         }
 
         pull_job_unref(i->tar_job);
+        pull_job_unref(i->settings_job);
         pull_job_unref(i->checksum_job);
         pull_job_unref(i->signature_job);
 
@@ -94,7 +100,13 @@ TarPull* tar_pull_unref(TarPull *i) {
                 free(i->temp_path);
         }
 
+        if (i->settings_temp_path) {
+                (void) unlink(i->settings_temp_path);
+                free(i->settings_temp_path);
+        }
+
         free(i->final_path);
+        free(i->settings_path);
         free(i->image_root);
         free(i->local);
         free(i);
@@ -113,7 +125,6 @@ int tar_pull_new(
         int r;
 
         assert(ret);
-        assert(event);
 
         i = new0(TarPull, 1);
         if (!i)
@@ -128,7 +139,13 @@ int tar_pull_new(
 
         i->grow_machine_directory = path_startswith(i->image_root, "/var/lib/machines");
 
-        i->event = sd_event_ref(event);
+        if (event)
+                i->event = sd_event_ref(event);
+        else {
+                r = sd_event_default(&i->event);
+                if (r < 0)
+                        return r;
+        }
 
         r = curl_glue_new(&i->glue, i->event);
         if (r < 0)
@@ -155,6 +172,11 @@ static void tar_pull_report_progress(TarPull *i, TarProgress p) {
 
                 percent = 0;
 
+                if (i->settings_job) {
+                        percent += i->settings_job->progress_percent * 5 / 100;
+                        remain -= 5;
+                }
+
                 if (i->checksum_job) {
                         percent += i->checksum_job->progress_percent * 5 / 100;
                         remain -= 5;
@@ -209,6 +231,27 @@ static int tar_pull_make_local_copy(TarPull *i) {
         if (r < 0)
                 return r;
 
+        if (i->settings) {
+                const char *local_settings;
+                assert(i->settings_job);
+
+                if (!i->settings_path) {
+                        r = pull_make_path(i->settings_job->url, i->settings_job->etag, i->image_root, ".settings-", NULL, &i->settings_path);
+                        if (r < 0)
+                                return log_oom();
+                }
+
+                local_settings = strjoina(i->image_root, "/", i->local, ".nspawn");
+
+                r = copy_file_atomic(i->settings_path, local_settings, 0664, i->force_local, 0);
+                if (r == -EEXIST)
+                        log_warning_errno(r, "Settings file %s already exists, not replacing.", local_settings);
+                else if (r < 0 && r != -ENOENT)
+                        log_warning_errno(r, "Failed to copy settings files %s: %m", local_settings);
+
+                log_info("Create new settings file '%s.nspawn'", i->local);
+        }
+
         return 0;
 }
 
@@ -216,11 +259,13 @@ static bool tar_pull_is_done(TarPull *i) {
         assert(i);
         assert(i->tar_job);
 
-        if (i->tar_job->state != PULL_JOB_DONE)
+        if (!PULL_JOB_IS_COMPLETE(i->tar_job))
                 return false;
-        if (i->checksum_job && i->checksum_job->state != PULL_JOB_DONE)
+        if (i->settings_job && !PULL_JOB_IS_COMPLETE(i->settings_job))
                 return false;
-        if (i->signature_job && i->signature_job->state != PULL_JOB_DONE)
+        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;
 
         return true;
@@ -234,7 +279,11 @@ static void tar_pull_job_on_finished(PullJob *j) {
         assert(j->userdata);
 
         i = j->userdata;
-        if (j->error != 0) {
+
+        if (j == i->settings_job) {
+                if (j->error != 0)
+                        log_info_errno(j->error, "Settings file could not be retrieved, proceeding without.");
+        } else if (j->error != 0) {
                 if (j == i->checksum_job)
                         log_error_errno(j->error, "Failed to retrieve SHA256 checksum, cannot verify. (Try --verify=no?)");
                 else if (j == i->signature_job)
@@ -253,13 +302,19 @@ static void tar_pull_job_on_finished(PullJob *j) {
         if (!tar_pull_is_done(i))
                 return;
 
-        j->disk_fd = safe_close(i->tar_job->disk_fd);
+        i->tar_job->disk_fd = safe_close(i->tar_job->disk_fd);
+        if (i->settings_job)
+                i->settings_job->disk_fd = safe_close(i->settings_job->disk_fd);
 
         if (i->tar_pid > 0) {
                 r = wait_for_terminate_and_warn("tar", i->tar_pid, true);
                 i->tar_pid = 0;
                 if (r < 0)
                         goto finish;
+                if (r > 0) {
+                        r = -EIO;
+                        goto finish;
+                }
         }
 
         if (!i->tar_job->etag_exists) {
@@ -267,7 +322,7 @@ static void tar_pull_job_on_finished(PullJob *j) {
 
                 tar_pull_report_progress(i, TAR_VERIFYING);
 
-                r = pull_verify(i->tar_job, i->checksum_job, i->signature_job);
+                r = pull_verify(i->tar_job, i->settings_job, i->checksum_job, i->signature_job);
                 if (r < 0)
                         goto finish;
 
@@ -283,8 +338,32 @@ static void tar_pull_job_on_finished(PullJob *j) {
                         goto finish;
                 }
 
-                free(i->temp_path);
-                i->temp_path = NULL;
+                i->temp_path = mfree(i->temp_path);
+
+                if (i->settings_job &&
+                    i->settings_job->error == 0 &&
+                    !i->settings_job->etag_exists) {
+
+                        assert(i->settings_temp_path);
+                        assert(i->settings_path);
+
+                        /* Also move the settings file into place, if
+                         * it exist. Note that we do so only if we
+                         * also moved the tar file in place, to keep
+                         * things strictly in sync. */
+
+                        r = import_make_read_only(i->settings_temp_path);
+                        if (r < 0)
+                                goto finish;
+
+                        r = rename_noreplace(AT_FDCWD, i->settings_temp_path, AT_FDCWD, i->settings_path);
+                        if (r < 0) {
+                                log_error_errno(r, "Failed to rename settings file: %m");
+                                goto finish;
+                        }
+
+                        i->settings_temp_path = mfree(i->settings_temp_path);
+                }
         }
 
         tar_pull_report_progress(i, TAR_COPYING);
@@ -302,7 +381,7 @@ finish:
                 sd_event_exit(i->event, r);
 }
 
-static int tar_pull_job_on_open_disk(PullJob *j) {
+static int tar_pull_job_on_open_disk_tar(PullJob *j) {
         TarPull *i;
         int r;
 
@@ -339,6 +418,35 @@ static int tar_pull_job_on_open_disk(PullJob *j) {
         return 0;
 }
 
+static int tar_pull_job_on_open_disk_settings(PullJob *j) {
+        TarPull *i;
+        int r;
+
+        assert(j);
+        assert(j->userdata);
+
+        i = j->userdata;
+        assert(i->settings_job == j);
+        assert(!i->settings_path);
+        assert(!i->settings_temp_path);
+
+        r = pull_make_path(j->url, j->etag, i->image_root, ".settings-", NULL, &i->settings_path);
+        if (r < 0)
+                return log_oom();
+
+        r = tempfn_random(i->settings_path, NULL, &i->settings_temp_path);
+        if (r < 0)
+                return log_oom();
+
+        mkdir_parents_label(i->settings_temp_path, 0700);
+
+        j->disk_fd = open(i->settings_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", i->settings_temp_path);
+
+        return 0;
+}
+
 static void tar_pull_job_on_progress(PullJob *j) {
         TarPull *i;
 
@@ -350,10 +458,19 @@ static void tar_pull_job_on_progress(PullJob *j) {
         tar_pull_report_progress(i, TAR_DOWNLOADING);
 }
 
-int tar_pull_start(TarPull *i, const char *url, const char *local, bool force_local, ImportVerify verify) {
+int tar_pull_start(
+                TarPull *i,
+                const char *url,
+                const char *local,
+                bool force_local,
+                ImportVerify verify,
+                bool settings) {
+
         int r;
 
         assert(i);
+        assert(verify < _IMPORT_VERIFY_MAX);
+        assert(verify >= 0);
 
         if (!http_url_is_valid(url))
                 return -EINVAL;
@@ -367,15 +484,18 @@ int tar_pull_start(TarPull *i, const char *url, const char *local, bool force_lo
         r = free_and_strdup(&i->local, local);
         if (r < 0)
                 return r;
+
         i->force_local = force_local;
         i->verify = verify;
+        i->settings = settings;
 
+        /* Set up download job for TAR file */
         r = pull_job_new(&i->tar_job, url, i->glue, i);
         if (r < 0)
                 return r;
 
         i->tar_job->on_finished = tar_pull_job_on_finished;
-        i->tar_job->on_open_disk = tar_pull_job_on_open_disk;
+        i->tar_job->on_open_disk = tar_pull_job_on_open_disk_tar;
         i->tar_job->on_progress = tar_pull_job_on_progress;
         i->tar_job->calc_checksum = verify != IMPORT_VERIFY_NO;
         i->tar_job->grow_machine_directory = i->grow_machine_directory;
@@ -384,6 +504,22 @@ int tar_pull_start(TarPull *i, const char *url, const char *local, bool force_lo
         if (r < 0)
                 return r;
 
+        /* Set up download job for the settings file (.nspawn) */
+        if (settings) {
+                r = pull_make_settings_job(&i->settings_job, url, i->glue, tar_pull_job_on_finished, i);
+                if (r < 0)
+                        return r;
+
+                i->settings_job->on_open_disk = tar_pull_job_on_open_disk_settings;
+                i->settings_job->on_progress = tar_pull_job_on_progress;
+                i->settings_job->calc_checksum = verify != IMPORT_VERIFY_NO;
+
+                r = pull_find_old_etags(i->settings_job->url, i->image_root, DT_REG, ".settings-", NULL, &i->settings_job->old_etags);
+                if (r < 0)
+                        return r;
+        }
+
+        /* Set up download of checksum/signature files */
         r = pull_make_verification_jobs(&i->checksum_job, &i->signature_job, verify, url, i->glue, tar_pull_job_on_finished, i);
         if (r < 0)
                 return r;
@@ -392,6 +528,12 @@ int tar_pull_start(TarPull *i, const char *url, const char *local, bool force_lo
         if (r < 0)
                 return r;
 
+        if (i->settings_job) {
+                r = pull_job_begin(i->settings_job);
+                if (r < 0)
+                        return r;
+        }
+
         if (i->checksum_job) {
                 i->checksum_job->on_progress = tar_pull_job_on_progress;
 
diff --git a/src/import/pull-tar.h b/src/import/pull-tar.h
index 0ed507748c..420845ae50 100644
--- a/src/import/pull-tar.h
+++ b/src/import/pull-tar.h
@@ -34,4 +34,4 @@ TarPull* tar_pull_unref(TarPull *pull);
 
 DEFINE_TRIVIAL_CLEANUP_FUNC(TarPull*, tar_pull_unref);
 
-int tar_pull_start(TarPull *pull, const char *url, const char *local, bool force_local, ImportVerify verify);
+int tar_pull_start(TarPull *pull, const char *url, const char *local, bool force_local, ImportVerify verify, bool settings);
diff --git a/src/import/pull.c b/src/import/pull.c
index e13cd6af97..98c22aeec9 100644
--- a/src/import/pull.c
+++ b/src/import/pull.c
@@ -37,6 +37,7 @@ static bool arg_force = false;
 static const char *arg_image_root = "/var/lib/machines";
 static ImportVerify arg_verify = IMPORT_VERIFY_SIGNATURE;
 static const char* arg_dkr_index_url = DEFAULT_DKR_INDEX_URL;
+static bool arg_settings = true;
 
 static int interrupt_signal_handler(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) {
         log_notice("Transfer aborted.");
@@ -118,7 +119,7 @@ static int pull_tar(int argc, char *argv[], void *userdata) {
         if (r < 0)
                 return log_error_errno(r, "Failed to allocate puller: %m");
 
-        r = tar_pull_start(pull, url, local, arg_force, arg_verify);
+        r = tar_pull_start(pull, url, local, arg_force, arg_verify, arg_settings);
         if (r < 0)
                 return log_error_errno(r, "Failed to pull image: %m");
 
@@ -204,7 +205,7 @@ static int pull_raw(int argc, char *argv[], void *userdata) {
         if (r < 0)
                 return log_error_errno(r, "Failed to allocate puller: %m");
 
-        r = raw_pull_start(pull, url, local, arg_force, arg_verify);
+        r = raw_pull_start(pull, url, local, arg_force, arg_verify, arg_settings);
         if (r < 0)
                 return log_error_errno(r, "Failed to pull image: %m");
 
@@ -331,8 +332,9 @@ static int help(int argc, char *argv[], void *userdata) {
                "  -h --help                   Show this help\n"
                "     --version                Show package version\n"
                "     --force                  Force creation of image\n"
-               "     --verify=                Verify downloaded image, one of: 'no',\n"
-               "                              'checksum', 'signature'.\n"
+               "     --verify=MODE            Verify downloaded image, one of: 'no',\n"
+               "                              'checksum', 'signature'\n"
+               "     --settings=BOOL          Download settings file with image\n"
                "     --image-root=PATH        Image root directory\n"
                "     --dkr-index-url=URL      Specify index URL to use for downloads\n\n"
                "Commands:\n"
@@ -352,6 +354,7 @@ static int parse_argv(int argc, char *argv[]) {
                 ARG_DKR_INDEX_URL,
                 ARG_IMAGE_ROOT,
                 ARG_VERIFY,
+                ARG_SETTINGS,
         };
 
         static const struct option options[] = {
@@ -361,10 +364,11 @@ static int parse_argv(int argc, char *argv[]) {
                 { "dkr-index-url",   required_argument, NULL, ARG_DKR_INDEX_URL   },
                 { "image-root",      required_argument, NULL, ARG_IMAGE_ROOT      },
                 { "verify",          required_argument, NULL, ARG_VERIFY          },
+                { "settings",        required_argument, NULL, ARG_SETTINGS        },
                 {}
         };
 
-        int c;
+        int c, r;
 
         assert(argc >= 0);
         assert(argv);
@@ -407,6 +411,14 @@ static int parse_argv(int argc, char *argv[]) {
 
                         break;
 
+                case ARG_SETTINGS:
+                        r = parse_boolean(optarg);
+                        if (r < 0)
+                                return log_error_errno(r, "Failed to parse --settings= parameter '%s'", optarg);
+
+                        arg_settings = r;
+                        break;
+
                 case '?':
                         return -EINVAL;