static void
dump_summary_ref (const char *ref_name,
guint64 commit_size,
GVariant *csum_v,
GVariantIter *metadata)
{
const guchar *csum_bytes;
GError *csum_error = NULL;
g_autofree char *size = NULL;
GVariant *value;
char *key;
g_print ("* %s\n", ref_name);
size = g_format_size (commit_size);
g_print (" Latest Commit (%s):\n", size);
csum_bytes = ostree_checksum_bytes_peek_validate (csum_v, &csum_error);
if (csum_error == NULL)
{
char csum[OSTREE_SHA256_STRING_LEN+1];
ostree_checksum_inplace_from_bytes (csum_bytes, csum);
g_print (" %s\n", csum);
}
else
{
g_print (" %s\n", csum_error->message);
g_clear_error (&csum_error);
}
while (g_variant_iter_loop (metadata, "{sv}", &key, &value))
{
g_autofree gchar *value_str = NULL;
const gchar *pretty_key = NULL;
if (g_strcmp0 (key, OSTREE_COMMIT_TIMESTAMP) == 0)
{
pretty_key = "Timestamp";
value_str = uint64_secs_to_iso8601 (GUINT64_FROM_BE (g_variant_get_uint64 (value)));
}
else
{
value_str = g_variant_print (value, FALSE);
}
/* Print out. */
if (pretty_key != NULL)
g_print (" %s (%s): %s\n", pretty_key, key, value_str);
else
g_print (" %s: %s\n", key, value_str);
}
}
/**
* ostree_repo_commit_traverse_iter_init_commit:
* @iter: An iter
* @repo: A repo
* @commit: Variant of type %OSTREE_OBJECT_TYPE_COMMIT
* @flags: Flags
* @error: Error
*
* Initialize (in place) an iterator over the root of a commit object.
*/
gboolean
ostree_repo_commit_traverse_iter_init_commit (OstreeRepoCommitTraverseIter *iter,
OstreeRepo *repo,
GVariant *commit,
OstreeRepoCommitTraverseFlags flags,
GError **error)
{
struct _OstreeRepoRealCommitTraverseIter *real =
(struct _OstreeRepoRealCommitTraverseIter*)iter;
gboolean ret = FALSE;
const guchar *csum;
g_autoptr(GVariant) meta_csum_bytes = NULL;
g_autoptr(GVariant) content_csum_bytes = NULL;
memset (real, 0, sizeof (*real));
real->initialized = TRUE;
real->repo = g_object_ref (repo);
real->commit = g_variant_ref (commit);
real->current_dir = NULL;
real->idx = 0;
g_variant_get_child (commit, 6, "@ay", &content_csum_bytes);
csum = ostree_checksum_bytes_peek_validate (content_csum_bytes, error);
if (!csum)
goto out;
ostree_checksum_inplace_from_bytes (csum, real->checksum_content);
g_variant_get_child (commit, 7, "@ay", &meta_csum_bytes);
csum = ostree_checksum_bytes_peek_validate (meta_csum_bytes, error);
if (!csum)
goto out;
ostree_checksum_inplace_from_bytes (csum, real->checksum_meta);
ret = TRUE;
out:
return ret;
}
/**
* ostree_repo_static_delta_execute_offline:
* @self: Repo
* @dir_or_file: Path to a directory containing static delta data, or directly to the superblock
* @skip_validation: If %TRUE, assume data integrity
* @cancellable: Cancellable
* @error: Error
*
* Given a directory representing an already-downloaded static delta
* on disk, apply it, generating a new commit. The directory must be
* named with the form "FROM-TO", where both are checksums, and it
* must contain a file named "superblock", along with at least one part.
*/
gboolean
ostree_repo_static_delta_execute_offline (OstreeRepo *self,
GFile *dir_or_file,
gboolean skip_validation,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
guint i, n;
const char *dir_or_file_path = NULL;
glnx_fd_close int meta_fd = -1;
glnx_fd_close int dfd = -1;
g_autoptr(GVariant) meta = NULL;
g_autoptr(GVariant) headers = NULL;
g_autoptr(GVariant) metadata = NULL;
g_autoptr(GVariant) fallback = NULL;
g_autofree char *to_checksum = NULL;
g_autofree char *from_checksum = NULL;
g_autofree char *basename = NULL;
dir_or_file_path = gs_file_get_path_cached (dir_or_file);
/* First, try opening it as a directory */
dfd = glnx_opendirat_with_errno (AT_FDCWD, dir_or_file_path, TRUE);
if (dfd < 0)
{
if (errno != ENOTDIR)
{
glnx_set_error_from_errno (error);
goto out;
}
else
{
g_autofree char *dir = dirname (g_strdup (dir_or_file_path));
basename = g_path_get_basename (dir_or_file_path);
if (!glnx_opendirat (AT_FDCWD, dir, TRUE, &dfd, error))
goto out;
}
}
else
basename = g_strdup ("superblock");
meta_fd = openat (dfd, basename, O_RDONLY | O_CLOEXEC);
if (meta_fd < 0)
{
glnx_set_error_from_errno (error);
goto out;
}
if (!ot_util_variant_map_fd (meta_fd, 0, G_VARIANT_TYPE (OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT),
FALSE, &meta, error))
goto out;
/* Parsing OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT */
metadata = g_variant_get_child_value (meta, 0);
/* Write the to-commit object */
{
g_autoptr(GVariant) to_csum_v = NULL;
g_autoptr(GVariant) from_csum_v = NULL;
g_autoptr(GVariant) to_commit = NULL;
gboolean have_to_commit;
gboolean have_from_commit;
to_csum_v = g_variant_get_child_value (meta, 3);
if (!ostree_validate_structureof_csum_v (to_csum_v, error))
goto out;
to_checksum = ostree_checksum_from_bytes_v (to_csum_v);
from_csum_v = g_variant_get_child_value (meta, 2);
if (g_variant_n_children (from_csum_v) > 0)
{
if (!ostree_validate_structureof_csum_v (from_csum_v, error))
goto out;
from_checksum = ostree_checksum_from_bytes_v (from_csum_v);
if (!ostree_repo_has_object (self, OSTREE_OBJECT_TYPE_COMMIT, from_checksum,
&have_from_commit, cancellable, error))
goto out;
if (!have_from_commit)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Commit %s, which is the delta source, is not in repository", from_checksum);
goto out;
}
}
if (!ostree_repo_has_object (self, OSTREE_OBJECT_TYPE_COMMIT, to_checksum,
&have_to_commit, cancellable, error))
goto out;
if (!have_to_commit)
{
g_autofree char *detached_path = _ostree_get_relative_static_delta_path (from_checksum, to_checksum, "commitmeta");
g_autoptr(GVariant) detached_data = NULL;
detached_data = g_variant_lookup_value (metadata, detached_path, G_VARIANT_TYPE("a{sv}"));
if (detached_data && !ostree_repo_write_commit_detached_metadata (self,
to_checksum,
detached_data,
cancellable,
error))
goto out;
to_commit = g_variant_get_child_value (meta, 4);
if (!ostree_repo_write_metadata (self, OSTREE_OBJECT_TYPE_COMMIT,
to_checksum, to_commit, NULL,
cancellable, error))
goto out;
}
}
fallback = g_variant_get_child_value (meta, 7);
if (g_variant_n_children (fallback) > 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Cannot execute delta offline: contains nonempty http fallback entries");
goto out;
}
headers = g_variant_get_child_value (meta, 6);
n = g_variant_n_children (headers);
for (i = 0; i < n; i++)
{
guint32 version;
guint64 size;
guint64 usize;
const guchar *csum;
char checksum[OSTREE_SHA256_STRING_LEN+1];
gboolean have_all;
g_autoptr(GInputStream) part_in = NULL;
g_autoptr(GVariant) inline_part_data = NULL;
g_autoptr(GVariant) header = NULL;
g_autoptr(GVariant) csum_v = NULL;
g_autoptr(GVariant) objects = NULL;
g_autoptr(GVariant) part = NULL;
g_autofree char *deltapart_path = NULL;
OstreeStaticDeltaOpenFlags delta_open_flags =
skip_validation ? OSTREE_STATIC_DELTA_OPEN_FLAGS_SKIP_CHECKSUM : 0;
header = g_variant_get_child_value (headers, i);
g_variant_get (header, "(u@aytt@ay)", &version, &csum_v, &size, &usize, &objects);
if (version > OSTREE_DELTAPART_VERSION)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Delta part has too new version %u", version);
goto out;
}
if (!_ostree_repo_static_delta_part_have_all_objects (self, objects, &have_all,
cancellable, error))
goto out;
/* If we already have these objects, don't bother executing the
* static delta.
*/
if (have_all)
continue;
csum = ostree_checksum_bytes_peek_validate (csum_v, error);
if (!csum)
goto out;
ostree_checksum_inplace_from_bytes (csum, checksum);
deltapart_path =
_ostree_get_relative_static_delta_part_path (from_checksum, to_checksum, i);
inline_part_data = g_variant_lookup_value (metadata, deltapart_path, G_VARIANT_TYPE("(yay)"));
if (inline_part_data)
{
g_autoptr(GBytes) inline_part_bytes = g_variant_get_data_as_bytes (inline_part_data);
part_in = g_memory_input_stream_new_from_bytes (inline_part_bytes);
/* For inline parts, we don't checksum, because it's
* included with the metadata, so we're not trying to
* protect against MITM or such. Non-security related
* checksums should be done at the underlying storage layer.
*/
delta_open_flags |= OSTREE_STATIC_DELTA_OPEN_FLAGS_SKIP_CHECKSUM;
if (!_ostree_static_delta_part_open (part_in, inline_part_bytes,
delta_open_flags,
NULL,
&part,
cancellable, error))
goto out;
}
else
{
g_autofree char *relpath = g_strdup_printf ("%u", i); /* TODO avoid malloc here */
glnx_fd_close int part_fd = openat (dfd, relpath, O_RDONLY | O_CLOEXEC);
if (part_fd < 0)
{
glnx_set_error_from_errno (error);
g_prefix_error (error, "Opening deltapart '%s': ", deltapart_path);
goto out;
}
part_in = g_unix_input_stream_new (part_fd, FALSE);
if (!_ostree_static_delta_part_open (part_in, NULL,
delta_open_flags,
checksum,
&part,
cancellable, error))
goto out;
}
if (!_ostree_static_delta_part_execute (self, objects, part, skip_validation,
NULL, cancellable, error))
{
g_prefix_error (error, "Executing delta part %i: ", i);
goto out;
}
}
ret = TRUE;
out:
return ret;
}
/**
* ostree_repo_commit_traverse_iter_next:
* @iter: An iter
* @cancellable: Cancellable
* @error: Error
*
* Step the interator to the next item. Files will be returned first,
* then subdirectories. Call this in a loop; upon encountering
* %OSTREE_REPO_COMMIT_ITER_RESULT_END, there will be no more files or
* directories. If %OSTREE_REPO_COMMIT_ITER_RESULT_DIR is returned,
* then call ostree_repo_commit_traverse_iter_get_dir() to retrieve
* data for that directory. Similarly, if
* %OSTREE_REPO_COMMIT_ITER_RESULT_FILE is returned, call
* ostree_repo_commit_traverse_iter_get_file().
*
* If %OSTREE_REPO_COMMIT_ITER_RESULT_ERROR is returned, it is a
* program error to call any further API on @iter except for
* ostree_repo_commit_traverse_iter_clear().
*/
OstreeRepoCommitIterResult
ostree_repo_commit_traverse_iter_next (OstreeRepoCommitTraverseIter *iter,
GCancellable *cancellable,
GError **error)
{
struct _OstreeRepoRealCommitTraverseIter *real =
(struct _OstreeRepoRealCommitTraverseIter*)iter;
OstreeRepoCommitIterResult res = OSTREE_REPO_COMMIT_ITER_RESULT_ERROR;
if (!real->current_dir)
{
if (!ostree_repo_load_variant (real->repo, OSTREE_OBJECT_TYPE_DIR_TREE,
real->checksum_content,
&real->current_dir,
error))
goto out;
res = OSTREE_REPO_COMMIT_ITER_RESULT_DIR;
}
else
{
guint nfiles;
guint ndirs;
guint idx;
const guchar *csum;
g_autoptr(GVariant) content_csum_v = NULL;
g_autoptr(GVariant) meta_csum_v = NULL;
g_autoptr(GVariant) files_variant = NULL;
g_autoptr(GVariant) dirs_variant = NULL;
files_variant = g_variant_get_child_value (real->current_dir, 0);
dirs_variant = g_variant_get_child_value (real->current_dir, 1);
nfiles = g_variant_n_children (files_variant);
ndirs = g_variant_n_children (dirs_variant);
if (real->idx < nfiles)
{
idx = real->idx;
g_variant_get_child (files_variant, idx, "(&s@ay)",
&real->name,
&content_csum_v);
csum = ostree_checksum_bytes_peek_validate (content_csum_v, error);
if (!csum)
goto out;
ostree_checksum_inplace_from_bytes (csum, real->checksum_content);
res = OSTREE_REPO_COMMIT_ITER_RESULT_FILE;
real->idx++;
}
else if (real->idx < nfiles + ndirs)
{
idx = real->idx - nfiles;
g_variant_get_child (dirs_variant, idx, "(&s@ay@ay)",
&real->name, &content_csum_v, &meta_csum_v);
csum = ostree_checksum_bytes_peek_validate (content_csum_v, error);
if (!csum)
goto out;
ostree_checksum_inplace_from_bytes (csum, real->checksum_content);
csum = ostree_checksum_bytes_peek_validate (meta_csum_v, error);
if (!csum)
goto out;
ostree_checksum_inplace_from_bytes (csum, real->checksum_meta);
res = OSTREE_REPO_COMMIT_ITER_RESULT_DIR;
real->idx++;
}
else
res = OSTREE_REPO_COMMIT_ITER_RESULT_END;
}
real->state = res;
out:
return res;
}
/**
* ostree_repo_static_delta_execute_offline:
* @self: Repo
* @dir: Path to a directory containing static delta data
* @skip_validation: If %TRUE, assume data integrity
* @cancellable: Cancellable
* @error: Error
*
* Given a directory representing an already-downloaded static delta
* on disk, apply it, generating a new commit. The directory must be
* named with the form "FROM-TO", where both are checksums, and it
* must contain a file named "superblock", along with at least one part.
*/
gboolean
ostree_repo_static_delta_execute_offline (OstreeRepo *self,
GFile *dir,
gboolean skip_validation,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
guint i, n;
gs_unref_object GFile *meta_file = g_file_get_child (dir, "superblock");
gs_unref_variant GVariant *meta = NULL;
gs_unref_variant GVariant *headers = NULL;
gs_unref_variant GVariant *fallback = NULL;
if (!ot_util_variant_map (meta_file, G_VARIANT_TYPE (OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT),
FALSE, &meta, error))
goto out;
/* Parsing OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT */
/* Write the to-commit object */
{
gs_unref_variant GVariant *to_csum_v = NULL;
gs_free char *to_checksum = NULL;
gs_unref_variant GVariant *to_commit = NULL;
gboolean have_to_commit;
to_csum_v = g_variant_get_child_value (meta, 3);
if (!ostree_validate_structureof_csum_v (to_csum_v, error))
goto out;
to_checksum = ostree_checksum_from_bytes_v (to_csum_v);
if (!ostree_repo_has_object (self, OSTREE_OBJECT_TYPE_COMMIT, to_checksum,
&have_to_commit, cancellable, error))
goto out;
if (!have_to_commit)
{
to_commit = g_variant_get_child_value (meta, 4);
if (!ostree_repo_write_metadata (self, OSTREE_OBJECT_TYPE_COMMIT,
to_checksum, to_commit, NULL,
cancellable, error))
goto out;
}
}
fallback = g_variant_get_child_value (meta, 7);
if (g_variant_n_children (fallback) > 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Cannot execute delta offline: contains nonempty http fallback entries");
goto out;
}
headers = g_variant_get_child_value (meta, 6);
n = g_variant_n_children (headers);
for (i = 0; i < n; i++)
{
guint64 size;
guint64 usize;
const guchar *csum;
gboolean have_all;
gs_unref_variant GVariant *header = NULL;
gs_unref_variant GVariant *csum_v = NULL;
gs_unref_variant GVariant *objects = NULL;
gs_unref_object GFile *part_path = NULL;
gs_unref_object GInputStream *raw_in = NULL;
gs_unref_object GInputStream *in = NULL;
header = g_variant_get_child_value (headers, i);
g_variant_get (header, "(@aytt@ay)", &csum_v, &size, &usize, &objects);
if (!_ostree_repo_static_delta_part_have_all_objects (self, objects, &have_all,
cancellable, error))
goto out;
/* If we already have these objects, don't bother executing the
* static delta.
*/
if (have_all)
continue;
csum = ostree_checksum_bytes_peek_validate (csum_v, error);
if (!csum)
goto out;
part_path = ot_gfile_resolve_path_printf (dir, "%u", i);
in = (GInputStream*)g_file_read (part_path, cancellable, error);
if (!in)
goto out;
if (!skip_validation)
{
gs_free char *expected_checksum = ostree_checksum_from_bytes (csum);
if (!_ostree_static_delta_part_validate (self, part_path, i,
expected_checksum,
cancellable, error))
goto out;
}
{
GMappedFile *mfile = gs_file_map_noatime (part_path, cancellable, error);
gs_unref_bytes GBytes *bytes = NULL;
if (!mfile)
goto out;
bytes = g_mapped_file_get_bytes (mfile);
g_mapped_file_unref (mfile);
if (!_ostree_static_delta_part_execute (self, objects, bytes,
cancellable, error))
{
g_prefix_error (error, "executing delta part %i: ", i);
goto out;
}
}
}
ret = TRUE;
out:
return ret;
}
/**
* ostree_repo_remote_list_refs:
* @self: Repo
* @remote_name: Name of the remote.
* @out_all_refs: (out) (element-type utf8 utf8): Mapping from ref to checksum
* @cancellable: Cancellable
* @error: Error
*
*/
gboolean
ostree_repo_remote_list_refs (OstreeRepo *self,
const char *remote_name,
GHashTable **out_all_refs,
GCancellable *cancellable,
GError **error)
{
g_autoptr(GBytes) summary_bytes = NULL;
g_autoptr(GHashTable) ret_all_refs = NULL;
if (!ostree_repo_remote_fetch_summary (self, remote_name,
&summary_bytes, NULL,
cancellable, error))
return FALSE;
if (summary_bytes == NULL)
{
return glnx_throw (error, "Remote refs not available; server has no summary file");
}
else
{
g_autoptr(GVariant) summary = NULL;
g_autoptr(GVariant) ref_map = NULL;
GVariantIter iter;
GVariant *child;
ret_all_refs = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
summary = g_variant_new_from_bytes (OSTREE_SUMMARY_GVARIANT_FORMAT,
summary_bytes, FALSE);
ref_map = g_variant_get_child_value (summary, 0);
g_variant_iter_init (&iter, ref_map);
while ((child = g_variant_iter_next_value (&iter)) != NULL)
{
const char *ref_name = NULL;
g_autoptr(GVariant) csum_v = NULL;
char tmp_checksum[OSTREE_SHA256_STRING_LEN+1];
g_variant_get_child (child, 0, "&s", &ref_name);
if (ref_name != NULL)
{
g_variant_get_child (child, 1, "(t@aya{sv})", NULL, &csum_v, NULL);
const guchar *csum_bytes = ostree_checksum_bytes_peek_validate (csum_v, error);
if (csum_bytes == NULL)
return FALSE;
ostree_checksum_inplace_from_bytes (csum_bytes, tmp_checksum);
g_hash_table_insert (ret_all_refs,
g_strdup (ref_name),
g_strdup (tmp_checksum));
}
g_variant_unref (child);
}
}
ot_transfer_out_value (out_all_refs, &ret_all_refs);
return TRUE;
}
