Line data    Source code

       1             : #ifndef HEADER_fd_src_disco_keyguard_fd_keyguard_h
       2             : #define HEADER_fd_src_disco_keyguard_fd_keyguard_h
       3             : 
       4             : /* fd_keyguard creates digital signatures on behalf of validator
       5             :    components. */
       6             : 
       7             : #include "../fd_disco_base.h"
       8             : 
       9             : FD_PROTOTYPES_BEGIN
      10             : 
      11             : /* FD_KEYGUARD_SIGN_REQ_MTU is the maximum size (inclusive) of a signing
      12             :    request payload.  The payload in this case is the message byte array
      13             :    passed to fd_ed25519_sign. */
      14             : 
      15           0 : #define FD_KEYGUARD_SIGN_REQ_MTU (2048UL)
      16             : 
      17             : /* Role definitions ***************************************************/
      18             : 
      19           0 : #define FD_KEYGUARD_ROLE_VOTER   (0)  /* vote transaction sender */
      20           0 : #define FD_KEYGUARD_ROLE_GOSSIP  (1)  /* gossip participant */
      21           0 : #define FD_KEYGUARD_ROLE_LEADER  (2)  /* block producer (shreds) */
      22           0 : #define FD_KEYGUARD_ROLE_REPAIR  (4)  /* Repair tile */
      23           0 : #define FD_KEYGUARD_ROLE_BUNDLE  (5)  /* Bundle tile */
      24             : #define FD_KEYGUARD_ROLE_CNT     (6)  /* number of known roles */
      25             : 
      26             : /* Payload types ******************************************************/
      27             : 
      28           0 : #define FD_KEYGUARD_PAYLOAD_LG_TXN    (0)  /* Solana transaction message (e.g. vote) */
      29           0 : #define FD_KEYGUARD_PAYLOAD_LG_GOSSIP (1)  /* Gossip CrdsData */
      30           0 : #define FD_KEYGUARD_PAYLOAD_LG_PRUNE  (2)  /* Gossip PruneData */
      31           0 : #define FD_KEYGUARD_PAYLOAD_LG_SHRED  (3)  /* Solana legacy or merkle shred */
      32           0 : #define FD_KEYGUARD_PAYLOAD_LG_TLS_CV (4)  /* TLS 1.3 certificate verify payload */
      33           0 : #define FD_KEYGUARD_PAYLOAD_LG_REPAIR (6)  /* RepairProtocol */
      34           0 : #define FD_KEYGUARD_PAYLOAD_LG_PING   (7)  /* Gossip/Repair ping protocol */
      35           0 : #define FD_KEYGUARD_PAYLOAD_LG_BUNDLE (8)  /* Bundle block producer authentication */
      36             : 
      37           0 : #define FD_KEYGUARD_PAYLOAD_TXN    (1UL<<FD_KEYGUARD_PAYLOAD_LG_TXN   )
      38           0 : #define FD_KEYGUARD_PAYLOAD_GOSSIP (1UL<<FD_KEYGUARD_PAYLOAD_LG_GOSSIP)
      39           0 : #define FD_KEYGUARD_PAYLOAD_PRUNE  (1UL<<FD_KEYGUARD_PAYLOAD_LG_PRUNE )
      40           0 : #define FD_KEYGUARD_PAYLOAD_SHRED  (1UL<<FD_KEYGUARD_PAYLOAD_LG_SHRED )
      41           0 : #define FD_KEYGUARD_PAYLOAD_TLS_CV (1UL<<FD_KEYGUARD_PAYLOAD_LG_TLS_CV)
      42           0 : #define FD_KEYGUARD_PAYLOAD_REPAIR (1UL<<FD_KEYGUARD_PAYLOAD_LG_REPAIR)
      43           0 : #define FD_KEYGUARD_PAYLOAD_PING   (1UL<<FD_KEYGUARD_PAYLOAD_LG_PING  )
      44           0 : #define FD_KEYGUARD_PAYLOAD_BUNDLE (1UL<<FD_KEYGUARD_PAYLOAD_LG_BUNDLE)
      45             : 
      46             : /* Sign types *********************************************************/
      47             : 
      48           0 : #define FD_KEYGUARD_SIGN_TYPE_ED25519               (0)  /* ed25519_sign(input) */
      49           0 : #define FD_KEYGUARD_SIGN_TYPE_SHA256_ED25519        (1)  /* ed25519_sign(sha256(data)) */
      50           0 : #define FD_KEYGUARD_SIGN_TYPE_PUBKEY_CONCAT_ED25519 (2)  /* ed25519_sign(pubkey-data) */
      51             : 
      52             : /* Type confusion/ambiguity checks ************************************/
      53             : 
      54             : /* fd_keyguard_payload_match returns a bitwise OR of
      55             :    FD_KEYGUARD_PAYLOAD_{...}.
      56             : 
      57             :    [data,data+sz) is the payload that is requested to be signed.
      58             : 
      59             :    sign_type is in FD_KEYGUARD_SIGN_TYPE_{...}.
      60             : 
      61             :    Returns 0 if none matched.  fd_ulong_popcnt(return value) is 1 if the
      62             :    payload is unambiguously of a single type. */
      63             : 
      64             : FD_FN_PURE ulong
      65             : fd_keyguard_payload_match( uchar const * data,
      66             :                            ulong         sz,
      67             :                            int           sign_type );
      68             : 
      69             : /* Authorization ******************************************************/
      70             : 
      71             : struct fd_keyguard_authority {
      72             :   uchar identity_pubkey[32];
      73             : };
      74             : 
      75             : typedef struct fd_keyguard_authority fd_keyguard_authority_t;
      76             : 
      77             : /* fd_keyguard_payload_authorize decides whether the keyguard accepts
      78             :    a signing request.
      79             : 
      80             :    [data,data+sz) is the payload that is requested to be signed.
      81             : 
      82             :    role is one of FD_KEYGUARD_ROLE_{...}.  It is assumed that the origin
      83             :    of the request was previously authorized for the given role.
      84             : 
      85             :    Returns 1 if authorized, otherwise 0.
      86             : 
      87             :    This function is more restrictive than the respective
      88             :    fd_keyguard_payload_matches functions. */
      89             : 
      90             : int
      91             : fd_keyguard_payload_authorize( fd_keyguard_authority_t const * authority,
      92             :                                uchar const *                   data,
      93             :                                ulong                           sz,
      94             :                                int                             role,
      95             :                                int                             sign_type );
      96             : 
      97             : FD_PROTOTYPES_END
      98             : 
      99             : #endif /* HEADER_fd_src_disco_keyguard_fd_keyguard_h */