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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2024 Felix Fietkau <nbd@nbd.name>
*/
#ifndef __ENROLL_H
#define __ENROLL_H
#include <libubox/blobmsg.h>
#include <libubox/uloop.h>
#include <libubox/avl.h>
#include "utils.h"
#include "curve25519.h"
#include "sha512.h"
#define ENROLL_SESSION_ID_LEN 4
#define ENROLL_HASH_SIZE 32
#define ENROLL_MAX_PEERS 64
struct network;
struct enroll_peer {
struct avl_node node;
struct sockaddr_in6 addr;
uint64_t nonce;
uint8_t session_id[ENROLL_SESSION_ID_LEN];
uint8_t session_key[CURVE25519_KEY_SIZE];
uint8_t pubkey[CURVE25519_KEY_SIZE];
struct blob_attr *enroll_meta;
uint8_t enroll_key[CURVE25519_KEY_SIZE];
bool has_secret;
bool has_key;
bool confirmed;
bool accepted;
struct blob_attr meta[];
};
struct enroll_state {
struct network *net;
struct avl_tree peers;
struct uloop_timeout timeout;
struct uloop_timeout connect_timer;
uint8_t privkey[2 * CURVE25519_KEY_SIZE];
uint8_t pubkey[CURVE25519_KEY_SIZE];
uint64_t nonce;
struct blob_attr *meta;
struct blob_attr *enroll_meta;
uint8_t secret_hash[SHA512_HASH_SIZE];
bool has_secret;
bool auto_accept;
unsigned int connect_interval;
unsigned int n_connect;
union network_endpoint connect[];
};
enum {
ENROLL_START_ATTR_NETWORK,
ENROLL_START_ATTR_TIMEOUT,
ENROLL_START_ATTR_CONNECT,
ENROLL_START_ATTR_INTERVAL,
ENROLL_START_ATTR_ENROLL_AUTO,
ENROLL_START_ATTR_ENROLL_SECRET,
ENROLL_START_ATTR_ENROLL_INFO,
ENROLL_START_ATTR_INFO,
__ENROLL_START_ATTR_MAX,
};
#ifdef UBUS_SUPPORT
extern const struct blobmsg_policy enroll_start_policy[__ENROLL_START_ATTR_MAX];
void pex_enroll_recv(void *data, size_t len, struct sockaddr_in6 *addr);
struct enroll_state *enroll_state(void);
void enroll_net_cleanup(struct network *net);
void enroll_peer_info(struct blob_buf *buf, struct enroll_peer *peer);
void enroll_peer_accept(struct enroll_peer *peer, struct blob_attr *meta);
int enroll_start(struct blob_attr *data);
void enroll_stop(void);
#else
static inline void pex_enroll_recv(void *data, size_t len, struct sockaddr_in6 *addr)
{
}
static inline void enroll_net_cleanup(struct network *net)
{
}
#endif
#endif
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