static int raw_pull_copy_auxiliary_file(
RawPull *i,
const char *suffix,
char **path) {
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, COPY_REFLINK | (i->force_local ? COPY_REPLACE : 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 tar_pull_make_local_copy(TarPull *i) {
int r;
assert(i);
assert(i->tar_job);
if (!i->local)
return 0;
if (!i->final_path) {
r = pull_make_path(i->tar_job->url, i->tar_job->etag, i->image_root, ".tar-", NULL, &i->final_path);
if (r < 0)
return log_oom();
}
r = pull_make_local_copy(i->final_path, i->image_root, i->local, i->force_local);
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;
}
static int tar_pull_make_local_copy(TarPull *i) {
int r;
assert(i);
assert(i->tar_job);
if (!i->local)
return 0;
r = pull_make_local_copy(i->final_path, i->image_root, i->local, i->force_local);
if (r < 0)
return r;
if (i->settings) {
const char *local_settings;
assert(i->settings_job);
r = tar_pull_determine_path(i, ".nspawn", &i->settings_path);
if (r < 0)
return r;
local_settings = strjoina(i->image_root, "/", i->local, ".nspawn");
r = copy_file_atomic(i->settings_path, local_settings, 0664, 0, COPY_REFLINK | (i->force_local ? COPY_REPLACE : 0));
if (r == -EEXIST)
log_warning_errno(r, "Settings file %s already exists, not replacing.", local_settings);
else if (r == -ENOENT)
log_debug_errno(r, "Skipping creation of settings file, since none was found.");
else if (r < 0)
log_warning_errno(r, "Failed to copy settings files %s, ignoring: %m", local_settings);
else
log_info("Created new settings file %s.", local_settings);
}
return 0;
}
static int raw_pull_make_local_copy(RawPull *i) {
_cleanup_free_ char *tp = NULL;
_cleanup_close_ int dfd = -1;
const char *p;
int r;
assert(i);
assert(i->raw_job);
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);
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);
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");
if (i->force_local)
(void) rm_rf(p, REMOVE_ROOT|REMOVE_PHYSICAL|REMOVE_SUBVOLUME);
r = tempfn_random(p, NULL, &tp);
if (r < 0)
return log_oom();
dfd = open(tp, 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");
/* 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. */
r = chattr_fd(dfd, FS_NOCOW_FL, FS_NOCOW_FL);
if (r < 0)
log_warning_errno(errno, "Failed to set file attributes on %s: %m", tp);
r = copy_bytes(i->raw_job->disk_fd, dfd, (off_t) -1, true);
if (r < 0) {
unlink(tp);
return log_error_errno(r, "Failed to make writable copy of image: %m");
}
(void) copy_times(i->raw_job->disk_fd, dfd);
(void) copy_xattr(i->raw_job->disk_fd, dfd);
dfd = safe_close(dfd);
r = rename(tp, p);
if (r < 0) {
unlink(tp);
return log_error_errno(errno, "Failed to move writable image into place: %m");
}
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;
}
