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/*
* Copyright (C) 2013 Colin Walters <walters@verbum.org>
*
* SPDX-License-Identifier: LGPL-2.0+
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include "ostree-core.h"
#include "otutil.h"
#include <sys/stat.h>
G_BEGIN_DECLS
/* It's what gzip does, 9 is too slow */
#define OSTREE_ARCHIVE_DEFAULT_COMPRESSION_LEVEL (6)
/* Note the permissive group bits. We want to be liberal here and let individual machines
* narrow permissions as needed via umask. This is important in setups where group ownership
* can matter for repo management (like OpenShift). */
#define DEFAULT_DIRECTORY_MODE 0775
#define DEFAULT_REGFILE_MODE 0660
/* This file contains private implementation data format definitions
* read by multiple implementation .c files.
*/
/*
* File objects are stored as a stream, with one #GVariant header,
* followed by content.
*
* The file header is of the following form:
*
* <BE guint32 containing variant length>
* u - uid
* u - gid
* u - mode
* u - rdev (must be 0)
* s - symlink target
* a(ayay) - xattrs
*
* Then the rest of the stream is data.
*/
#define _OSTREE_FILE_HEADER_GVARIANT_FORMAT G_VARIANT_TYPE ("(uuuusa(ayay))")
/*
* A variation on %OSTREE_FILE_HEADER_GVARIANT_FORMAT, used for
* storing zlib-compressed content objects.
*
* <BE guint32 containing variant length>
* t - size
* u - uid
* u - gid
* u - mode
* u - rdev (must be 0)
* s - symlink target
* a(ayay) - xattrs
* ---
* zlib-compressed data
*/
#define _OSTREE_ZLIB_FILE_HEADER_GVARIANT_FORMAT G_VARIANT_TYPE ("(tuuuusa(ayay))")
GBytes *_ostree_file_header_new (GFileInfo *file_info,
GVariant *xattrs);
GBytes *_ostree_zlib_file_header_new (GFileInfo *file_info,
GVariant *xattrs);
gboolean
_ostree_make_temporary_symlink_at (int tmp_dirfd,
const char *target,
char **out_name,
GCancellable *cancellable,
GError **error);
GFileInfo * _ostree_stbuf_to_gfileinfo (const struct stat *stbuf);
void _ostree_gfileinfo_to_stbuf (GFileInfo *file_info, struct stat *out_stbuf);
gboolean _ostree_gfileinfo_equal (GFileInfo *a, GFileInfo *b);
gboolean _ostree_stbuf_equal (struct stat *stbuf_a, struct stat *stbuf_b);
GFileInfo * _ostree_mode_uidgid_to_gfileinfo (mode_t mode, uid_t uid, gid_t gid);
static inline void
_ostree_checksum_inplace_from_bytes_v (GVariant *csum_v, char *buf)
{
const guint8*csum = ostree_checksum_bytes_peek (csum_v);
g_assert (csum);
ostree_checksum_inplace_from_bytes (csum, buf);
}
/* XX/checksum-2.extension, but let's just use 256 for a
* bit of overkill.
*/
#define _OSTREE_LOOSE_PATH_MAX (256)
/* GVariant format for ostree.sizes metadata entries. */
#define _OSTREE_OBJECT_SIZES_ENTRY_SIGNATURE "ay"
char *
_ostree_get_relative_object_path (const char *checksum,
OstreeObjectType type,
gboolean compressed);
char *
_ostree_get_relative_static_delta_path (const char *from,
const char *to,
const char *target);
char *
_ostree_get_relative_static_delta_superblock_path (const char *from,
const char *to);
char *
_ostree_get_relative_static_delta_detachedmeta_path (const char *from,
const char *to);
char *
_ostree_get_relative_static_delta_part_path (const char *from,
const char *to,
guint i);
char *
_ostree_get_relative_static_delta_index_path (const char *to);
static inline char * _ostree_get_commitpartial_path (const char *checksum)
{
return g_strconcat ("state/", checksum, ".commitpartial", NULL);
}
gboolean
_ostree_validate_ref_fragment (const char *fragment,
GError **error);
gboolean
_ostree_validate_bareuseronly_mode (guint32 mode,
const char *checksum,
GError **error);
static inline gboolean
_ostree_validate_bareuseronly_mode_finfo (GFileInfo *finfo,
const char *checksum,
GError **error)
{
const guint32 content_mode = g_file_info_get_attribute_uint32 (finfo, "unix::mode");
return _ostree_validate_bareuseronly_mode (content_mode, checksum, error);
}
gboolean
_ostree_compare_object_checksum (OstreeObjectType objtype,
const char *expected,
const char *actual,
GError **error);
gboolean
_ostree_parse_delta_name (const char *delta_name,
char **out_from,
char **out_to,
GError **error);
void
_ostree_loose_path (char *buf,
const char *checksum,
OstreeObjectType objtype,
OstreeRepoMode repo_mode);
gboolean _ostree_validate_structureof_metadata (OstreeObjectType objtype,
GVariant *commit,
GError **error);
gboolean
_ostree_verify_metadata_object (OstreeObjectType objtype,
const char *expected_checksum,
GVariant *metadata,
GError **error);
#define _OSTREE_METADATA_GPGSIGS_NAME "ostree.gpgsigs"
#define _OSTREE_METADATA_GPGSIGS_TYPE G_VARIANT_TYPE ("aay")
static inline gboolean
_ostree_repo_mode_is_bare (OstreeRepoMode mode)
{
return
mode == OSTREE_REPO_MODE_BARE ||
mode == OSTREE_REPO_MODE_BARE_USER ||
mode == OSTREE_REPO_MODE_BARE_USER_ONLY;
}
#ifndef OSTREE_DISABLE_GPGME
GVariant *
_ostree_detached_metadata_append_gpg_sig (GVariant *existing_metadata,
GBytes *signature_bytes);
#endif
GFile *
_ostree_get_default_sysroot_path (void);
_OSTREE_PUBLIC
gboolean
_ostree_raw_file_to_archive_stream (GInputStream *input,
GFileInfo *file_info,
GVariant *xattrs,
guint compression_level,
GInputStream **out_input,
GCancellable *cancellable,
GError **error);
gboolean
_ostree_compare_timestamps (const char *current_rev,
guint64 current_ts,
const char *new_rev,
guint64 new_ts,
GError **error);
G_END_DECLS
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