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/* Authentication, for libreswan
*
* Copyright (C) 2022 Andrew Cagney
*
* 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. See <https://www.gnu.org/licenses/gpl2.txt>.
*
* 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.
*/
#ifndef AUTHBY_H
#define AUTHBY_H
#include <stdbool.h>
#include "lset.h"
enum keyword_auth;
struct jambuf;
struct authby {
bool psk;
bool null;
bool never;
bool rsasig;
bool ecdsa;
bool rsasig_v1_5;
};
#define AUTHBY_RSASIG (struct authby) { .rsasig = true, .rsasig_v1_5 = true, }
#define AUTHBY_ECDSA (struct authby) { .ecdsa = true, }
#define AUTHBY_NEVER (struct authby) { .never = true, }
#define AUTHBY_NULL (struct authby) { .null = true, }
#define AUTHBY_PSK (struct authby) { .psk = true, }
#define AUTHBY_NONE (struct authby) {0}
#define AUTHBY_ALL (struct authby) { true, true, true, true, true, true }
#define AUTHBY_DEFAULTS (struct authby) { .rsasig = true, .rsasig_v1_5 = true, .ecdsa = true }
struct authby authby_xor(struct authby lhs, struct authby rhs);
struct authby authby_and(struct authby lhs, struct authby rhs);
struct authby authby_or(struct authby lhs, struct authby rhs);
struct authby authby_not(struct authby lhs);
bool authby_le(struct authby lhs, struct authby rhs);
bool authby_is_set(struct authby authby);
bool authby_eq(struct authby, struct authby);
bool authby_has_rsasig(struct authby);
bool authby_has_ecdsa(struct authby);
bool authby_has_digsig(struct authby);
enum keyword_auth auth_from_authby(struct authby authby);
struct authby authby_from_auth(enum keyword_auth auth);
typedef struct {
char buf[sizeof("RSA+NULL+NEVER+RSASIG+ECDSA+RSASIG_v1_5") + 1/*canary*/];
} authby_buf;
const char *str_authby(struct authby authby, authby_buf *buf);
size_t jam_authby(struct jambuf *buf, struct authby authby);
#endif
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