/* * Copyright (C) 2013 Colin Walters * * 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, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #pragma once #include "ostree-core.h" #include "otutil.h" #include 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