crypto/asymmetric_keys/pgplib.h

/* SPDX-License-Identifier: GPL-2.0 */
/* PGP library definitions (RFC 4880)
 *
 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 */

#include "pgp.h"

/*
 * PGP library packet parser
 */
struct pgp_parse_context {
	u64 types_of_interest;
	int (*process_packet)(struct pgp_parse_context *context,
			      enum pgp_packet_tag type,
			      u8 headerlen,
			      const u8 *data,
			      size_t datalen);
};

extern int pgp_parse_packets(const u8 *data, size_t datalen,
			     struct pgp_parse_context *ctx);

struct pgp_parse_pubkey {
	enum pgp_key_version version : 8;
	enum pgp_pubkey_algo pubkey_algo : 8;
	__kernel_old_time_t creation_time;
	__kernel_old_time_t expires_at;
};

extern int pgp_parse_public_key(const u8 **_data, size_t *_datalen,
				struct pgp_parse_pubkey *pk);

struct pgp_parse_sig_context {
	unsigned long types_of_interest[128 / BITS_PER_LONG];
	int (*process_packet)(struct pgp_parse_sig_context *context,
			      enum pgp_sig_subpkt_type type,
			      const u8 *data,
			      size_t datalen);
};

extern int pgp_parse_sig_packets(const u8 *data, size_t datalen,
				 struct pgp_parse_sig_context *ctx);

struct pgp_sig_parameters {
	enum pgp_signature_version version : 8;
	enum pgp_signature_type signature_type : 8;
	enum pgp_pubkey_algo pubkey_algo : 8;
	enum pgp_hash_algo hash_algo : 8;
	union {
		struct pgp_key_ID issuer;
		__be32 issuer32[2];
	};
};

extern int pgp_parse_sig_params(const u8 **_data, size_t *_datalen,
				struct pgp_sig_parameters *p);

#if IS_ENABLED(CONFIG_PGP_TEST_KEY)

struct pgp_literal_data_parameters {
	enum pgp_literal_data_format format : 8;
	u8 filename_len;
	u8 filename_offset;
	u8 content_offset;
	u32 content_len;
	u32 time;
};

extern int pgp_parse_literal_data(const u8 *data, size_t datalen,
				  struct pgp_literal_data_parameters *p);

#endif /* CONFIG_PGP_TEST_KEY */