all repos — circe-vpn @ f8438a3f9db13c62e62593c72e846eb3911062af

Circe VPN

core/peer_table.h (view raw)

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#ifndef CIRCE_CORE_PEER_TABLE_H
#define CIRCE_CORE_PEER_TABLE_H

#include <stdbool.h>
#include <stdint.h>

struct circe_location
{
  enum
  {
    CIRCE_ADDRESS_IPV4,
    CIRCE_ADDRESS_IPV6,
  } ip_type;
  uint16_t port;
  union
  {
    uint8_t ipv4[4];
    uint8_t ipv6[16];
  } ip_addr;
};

#define CIRCE_PEER_TABLE_LEN 64
#define CIRCE_IDENTITY_LEN 64 // SHA-512 hash of hostname || island name

struct circe_peer
{
  bool double_lan; // lan1 is not valid if false
  struct circe_location lan0_loc;
  struct circe_location lan1_loc;
  struct circe_location wan_loc;
  uint8_t relay_server_identity[CIRCE_IDENTITY_LEN]; // SERVERS DON'T USE THIS,
                                                     // ONLY CLIENTS DO
  uint8_t lan0_hash[32];                             // SHA-256
  uint8_t lan1_hash[32];
  enum
  {
    CIRCE_ROUTE_LAN0,
    CIRCE_ROUTE_LAN1,
    CIRCE_ROUTE_WAN,
    CIRCE_ROUTE_RELAY,
  } current_route;

  uint8_t identity[CIRCE_IDENTITY_LEN];
  uint8_t mldsa_pubkey[1312]; // ML-DSA-44

  uint8_t rx_key[32];
  uint8_t tx_key[32];
};

#endif