1 files changed, 85 insertions, 0 deletions
diff --git a/src/portable/portable.h b/src/portable/portable.h
new file mode 100644
index 0000000..1a33f30
--- /dev/null
+++ b/src/portable/portable.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include "sd-bus.h"
+
+#include "hashmap.h"
+#include "macro.h"
+#include "set.h"
+#include "string-util.h"
+
+typedef struct PortableMetadata {
+        int fd;
+        char *source;
+        char *image_path;
+        char *selinux_label;
+        char name[];
+} PortableMetadata;
+
+#define PORTABLE_METADATA_IS_OS_RELEASE(m) (streq((m)->name, "/etc/os-release"))
+#define PORTABLE_METADATA_IS_EXTENSION_RELEASE(m) (startswith((m)->name, "/usr/lib/extension-release.d/extension-release."))
+#define PORTABLE_METADATA_IS_UNIT(m) (!IN_SET((m)->name[0], 0, '/'))
+
+typedef enum PortableFlags {
+        PORTABLE_RUNTIME        = 1 << 0, /* Public API via DBUS, do not change */
+        PORTABLE_FORCE_ATTACH   = 1 << 1, /* Public API via DBUS, do not change */
+        PORTABLE_FORCE_SYSEXT   = 1 << 2, /* Public API via DBUS, do not change */
+        PORTABLE_PREFER_COPY    = 1 << 3,
+        PORTABLE_PREFER_SYMLINK = 1 << 4,
+        PORTABLE_REATTACH       = 1 << 5,
+        _PORTABLE_MASK_PUBLIC   = PORTABLE_RUNTIME | PORTABLE_FORCE_ATTACH | PORTABLE_FORCE_SYSEXT,
+        _PORTABLE_TYPE_MAX,
+        _PORTABLE_TYPE_INVALID  = -EINVAL,
+} PortableFlags;
+
+/* This enum is anonymous, since we usually store it in an 'int', as we overload it with negative errno
+ * values. */
+enum {
+        PORTABLE_COPY,
+        PORTABLE_SYMLINK,
+        PORTABLE_UNLINK,
+        PORTABLE_WRITE,
+        PORTABLE_MKDIR,
+        _PORTABLE_CHANGE_TYPE_MAX,
+        _PORTABLE_CHANGE_TYPE_INVALID = -EINVAL,
+};
+
+typedef enum PortableState {
+        PORTABLE_DETACHED,
+        PORTABLE_ATTACHED,
+        PORTABLE_ATTACHED_RUNTIME,
+        PORTABLE_ENABLED,
+        PORTABLE_ENABLED_RUNTIME,
+        PORTABLE_RUNNING,
+        PORTABLE_RUNNING_RUNTIME,
+        _PORTABLE_STATE_MAX,
+        _PORTABLE_STATE_INVALID = -EINVAL,
+} PortableState;
+
+typedef struct PortableChange {
+        int type_or_errno; /* PORTABLE_COPY, PORTABLE_SYMLINK, … if positive, errno if negative */
+        char *path;
+        char *source;
+} PortableChange;
+
+PortableMetadata *portable_metadata_unref(PortableMetadata *i);
+DEFINE_TRIVIAL_CLEANUP_FUNC(PortableMetadata*, portable_metadata_unref);
+
+int portable_metadata_hashmap_to_sorted_array(Hashmap *unit_files, PortableMetadata ***ret);
+
+int portable_extract(const char *image, char **matches, char **extension_image_paths, PortableFlags flags, PortableMetadata **ret_os_release, OrderedHashmap **ret_extension_releases, Hashmap **ret_unit_files, char ***ret_valid_prefixes, sd_bus_error *error);
+
+int portable_attach(sd_bus *bus, const char *name_or_path, char **matches, const char *profile, char **extension_images, PortableFlags flags, PortableChange **changes, size_t *n_changes, sd_bus_error *error);
+int portable_detach(sd_bus *bus, const char *name_or_path, char **extension_image_paths, PortableFlags flags, PortableChange **changes, size_t *n_changes, sd_bus_error *error);
+
+int portable_get_state(sd_bus *bus, const char *name_or_path, char **extension_image_paths, PortableFlags flags, PortableState *ret, sd_bus_error *error);
+
+int portable_get_profiles(char ***ret);
+
+void portable_changes_free(PortableChange *changes, size_t n_changes);
+
+const char *portable_change_type_to_string(int t) _const_;
+int portable_change_type_from_string(const char *t) _pure_;
+
+const char *portable_state_to_string(PortableState t) _const_;
+PortableState portable_state_from_string(const char *t) _pure_;