diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/import/pull-raw.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/import/pull-raw.c | 985 |
1 files changed, 985 insertions, 0 deletions
diff --git a/src/import/pull-raw.c b/src/import/pull-raw.c new file mode 100644 index 0000000..f4f869d --- /dev/null +++ b/src/import/pull-raw.c @@ -0,0 +1,985 @@ +/* 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 "util.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 = -1; + _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, + 0, 0, + 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 = -1; + 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) == (off_t) -1) + 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, dfd, 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; +} |