1 files changed, 111 insertions, 0 deletions
diff --git a/lib/keyslot_context.h b/lib/keyslot_context.h
new file mode 100644
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--- /dev/null
+++ b/lib/keyslot_context.h
@@ -0,0 +1,111 @@
+/*
+ * LUKS - Linux Unified Key Setup, keyslot unlock helpers
+ *
+ * Copyright (C) 2022-2023 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2022-2023 Ondrej Kozina
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef KEYSLOT_CONTEXT_H
+#define KEYSLOT_CONTEXT_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "internal.h"
+
+typedef int (*keyslot_context_get_key) (
+	struct crypt_device *cd,
+	struct crypt_keyslot_context *kc,
+	int keyslot,
+	int segment,
+	struct volume_key **r_vk);
+
+typedef int (*keyslot_context_get_volume_key) (
+	struct crypt_device *cd,
+	struct crypt_keyslot_context *kc,
+	int keyslot,
+	struct volume_key **r_vk);
+
+typedef int (*keyslot_context_get_passphrase) (
+	struct crypt_device *cd,
+	struct crypt_keyslot_context *kc,
+	const char **r_passphrase,
+	size_t *r_passphrase_size);
+
+/* crypt_keyslot_context */
+struct crypt_keyslot_context {
+	int type;
+
+	union {
+	struct {
+		const char *passphrase;
+		size_t passphrase_size;
+	} p;
+	struct {
+		const char *keyfile;
+		uint64_t keyfile_offset;
+		size_t keyfile_size;
+	} kf;
+	struct {
+		int id;
+		const char *type;
+		const char *pin;
+		size_t pin_size;
+		void *usrptr;
+	} t;
+	struct {
+		const char *volume_key;
+		size_t volume_key_size;
+	} k;
+	} u;
+
+	int error;
+
+	char *i_passphrase;
+	size_t i_passphrase_size;
+
+	keyslot_context_get_key		get_luks2_key;
+	keyslot_context_get_volume_key	get_luks1_volume_key;
+	keyslot_context_get_volume_key	get_luks2_volume_key;
+	keyslot_context_get_passphrase	get_passphrase;
+};
+
+void crypt_keyslot_context_destroy_internal(struct crypt_keyslot_context *method);
+
+void crypt_keyslot_unlock_by_key_init_internal(struct crypt_keyslot_context *kc,
+	const char *volume_key,
+	size_t volume_key_size);
+
+void crypt_keyslot_unlock_by_passphrase_init_internal(struct crypt_keyslot_context *kc,
+	const char *passphrase,
+	size_t passphrase_size);
+
+void crypt_keyslot_unlock_by_keyfile_init_internal(struct crypt_keyslot_context *kc,
+	const char *keyfile,
+	size_t keyfile_size,
+	uint64_t keyfile_offset);
+
+void crypt_keyslot_unlock_by_token_init_internal(struct crypt_keyslot_context *kc,
+	int token,
+	const char *type,
+	const char *pin,
+	size_t pin_size,
+	void *usrptr);
+
+const char *keyslot_context_type_string(const struct crypt_keyslot_context *kc);
+
+#endif /* KEYSLOT_CONTEXT_H */