LCOV - code coverage report
Current view: top level - discof/rpc - fd_rpc_tile.c (source / functions) Hit Total Coverage
Test: cov.lcov Lines: 0 591 0.0 %
Date: 2025-12-06 04:45:29 Functions: 0 79 0.0 %

          Line data    Source code
       1             : #include "../replay/fd_replay_tile.h"
       2             : #include "../genesis/fd_genesi_tile.h"
       3             : #include "../../disco/topo/fd_topo.h"
       4             : #include "../../disco/keyguard/fd_keyload.h"
       5             : #include "../../disco/keyguard/fd_keyswitch.h"
       6             : #include "../../flamenco/features/fd_features.h"
       7             : #include "../../flamenco/runtime/sysvar/fd_sysvar_rent.h"
       8             : #include "../../waltz/http/fd_http_server.h"
       9             : #include "../../waltz/http/fd_http_server_private.h"
      10             : #include "../../ballet/json/cJSON.h"
      11             : #include "../../ballet/json/cJSON_alloc.h"
      12             : #include "../../ballet/lthash/fd_lthash.h"
      13             : 
      14             : #include <stddef.h>
      15             : #include <sys/socket.h>
      16             : 
      17             : #include "generated/fd_rpc_tile_seccomp.h"
      18             : 
      19           0 : #define FD_HTTP_SERVER_RPC_MAX_REQUEST_LEN 8192UL
      20             : 
      21           0 : #define IN_KIND_REPLAY (0)
      22           0 : #define IN_KIND_GENESI (0)
      23             : 
      24           0 : #define FD_RPC_COMMITMENT_PROCESSED (0)
      25           0 : #define FD_RPC_COMMITMENT_CONFIRMED (1)
      26           0 : #define FD_RPC_COMMITMENT_FINALIZED (2)
      27             : 
      28             : #define FD_RPC_ENCODING_BASE58      (0)
      29             : #define FD_RPC_ENCODING_BASE64      (1)
      30             : #define FD_RPC_ENCODING_BASE64_ZSTD (2)
      31             : #define FD_RPC_ENCODING_BINARY      (3)
      32             : #define FD_RPC_ENCODING_JSON_PARSED (4)
      33             : 
      34             : #define FD_RPC_METHOD_GET_ACCOUNT_INFO                       ( 0)
      35             : #define FD_RPC_METHOD_GET_BALANCE                            ( 1)
      36             : #define FD_RPC_METHOD_GET_BLOCK                              ( 2)
      37             : #define FD_RPC_METHOD_GET_BLOCK_COMMITMENT                   ( 3)
      38             : #define FD_RPC_METHOD_GET_BLOCK_HEIGHT                       ( 4)
      39             : #define FD_RPC_METHOD_GET_BLOCK_PRODUCTION                   ( 5)
      40             : #define FD_RPC_METHOD_GET_BLOCKS                             ( 6)
      41             : #define FD_RPC_METHOD_GET_BLOCKS_WITH_LIMIT                  ( 7)
      42             : #define FD_RPC_METHOD_GET_BLOCK_TIME                         ( 8)
      43             : #define FD_RPC_METHOD_GET_CLUSTER_NODES                      ( 9)
      44             : #define FD_RPC_METHOD_GET_EPOCH_INFO                         (10)
      45             : #define FD_RPC_METHOD_GET_EPOCH_SCHEDULE                     (11)
      46             : #define FD_RPC_METHOD_GET_FEE_FOR_MESSAGE                    (12)
      47             : #define FD_RPC_METHOD_GET_FIRST_AVAILABLE_BLOCK              (13)
      48             : #define FD_RPC_METHOD_GET_GENESIS_HASH                       (14)
      49             : #define FD_RPC_METHOD_GET_HEALTH                             (15)
      50             : #define FD_RPC_METHOD_GET_HIGHEST_SNAPSHOT_SLOT              (16)
      51             : #define FD_RPC_METHOD_GET_IDENTITY                           (17)
      52             : #define FD_RPC_METHOD_GET_INFLATION_GOVERNOR                 (18)
      53             : #define FD_RPC_METHOD_GET_INFLATION_RATE                     (19)
      54             : #define FD_RPC_METHOD_GET_INFLATION_REWARD                   (20)
      55             : #define FD_RPC_METHOD_GET_LARGEST_ACCOUNTS                   (21)
      56             : #define FD_RPC_METHOD_GET_LATEST_BLOCKHASH                   (22)
      57             : #define FD_RPC_METHOD_GET_LEADER_SCHEDULE                    (23)
      58             : #define FD_RPC_METHOD_GET_MAX_RETRANSMIT_SLOT                (24)
      59             : #define FD_RPC_METHOD_GET_MAX_SHRED_INSERT_SLOT              (25)
      60             : #define FD_RPC_METHOD_GET_MINIMUM_BALANCE_FOR_RENT_EXEMPTION (26)
      61             : #define FD_RPC_METHOD_GET_MULTIPLE_ACCOUNTS                  (27)
      62             : #define FD_RPC_METHOD_GET_PROGRAM_ACCOUNTS                   (28)
      63             : #define FD_RPC_METHOD_GET_RECENT_PERFORMANCE_SAMPLES         (29)
      64             : #define FD_RPC_METHOD_GET_RECENT_PRIORITIZATION_FEES         (30)
      65             : #define FD_RPC_METHOD_GET_SIGNATURES_FOR_ADDRESS             (31)
      66             : #define FD_RPC_METHOD_GET_SIGNATURE_STATUSES                 (32)
      67             : #define FD_RPC_METHOD_GET_SLOT                               (33)
      68             : #define FD_RPC_METHOD_GET_SLOT_LEADER                        (34)
      69             : #define FD_RPC_METHOD_GET_SLOT_LEADERS                       (35)
      70             : #define FD_RPC_METHOD_GET_STAKE_MINIMUM_DELEGATION           (36)
      71             : #define FD_RPC_METHOD_GET_SUPPLY                             (37)
      72             : #define FD_RPC_METHOD_GET_TOKEN_ACCOUNT_BALANCE              (38)
      73             : #define FD_RPC_METHOD_GET_TOKEN_ACCOUNTS_BY_DELEGATE         (39)
      74             : #define FD_RPC_METHOD_GET_TOKEN_ACCOUNTS_BY_OWNER            (40)
      75             : #define FD_RPC_METHOD_GET_TOKEN_LARGEST_ACCOUNTS             (41)
      76             : #define FD_RPC_METHOD_GET_TOKEN_SUPPLY                       (42)
      77             : #define FD_RPC_METHOD_GET_TRANSACTION                        (43)
      78             : #define FD_RPC_METHOD_GET_TRANSACTION_COUNT                  (44)
      79             : #define FD_RPC_METHOD_GET_VERSION                            (45)
      80             : #define FD_RPC_METHOD_GET_VOTE_ACCOUNTS                      (46)
      81             : #define FD_RPC_METHOD_IS_BLOCKHASH_VALID                     (47)
      82             : #define FD_RPC_METHOD_MINIMUM_LEDGER_SLOT                    (48)
      83             : #define FD_RPC_METHOD_REQUEST_AIRDROP                        (49)
      84             : #define FD_RPC_METHOD_SEND_TRANSACTION                       (50)
      85             : #define FD_RPC_METHOD_SIMULATE_TRANSACTION                   (51)
      86             : 
      87             : // Keep in sync with https://github.com/solana-labs/solana-web3.js/blob/master/src/errors.ts
      88             : // and https://github.com/anza-xyz/agave/blob/master/rpc-client-api/src/custom_error.rs
      89             : #define FD_RPC_ERROR_BLOCK_CLEANED_UP                            (-32001)
      90             : #define FD_RPC_ERROR_SEND_TRANSACTION_PREFLIGHT_FAILURE          (-32002)
      91             : #define FD_RPC_ERROR_TRANSACTION_SIGNATURE_VERIFICATION_FAILURE  (-32003)
      92             : #define FD_RPC_ERROR_BLOCK_NOT_AVAILABLE                         (-32004)
      93           0 : #define FD_RPC_ERROR_NODE_UNHEALTHY                              (-32005)
      94             : #define FD_RPC_ERROR_TRANSACTION_PRECOMPILE_VERIFICATION_FAILURE (-32006)
      95             : #define FD_RPC_ERROR_SLOT_SKIPPED                                (-32007)
      96           0 : #define FD_RPC_ERROR_NO_SNAPSHOT                                 (-32008)
      97             : #define FD_RPC_ERROR_LONG_TERM_STORAGE_SLOT_SKIPPED              (-32009)
      98             : #define FD_RPC_ERROR_KEY_EXCLUDED_FROM_SECONDARY_INDEX           (-32010)
      99             : #define FD_RPC_ERROR_TRANSACTION_HISTORY_NOT_AVAILABLE           (-32011)
     100             : #define FD_RPC_ROR                                               (-32012)
     101             : #define FD_RPC_ERROR_TRANSACTION_SIGNATURE_LEN_MISMATCH          (-32013)
     102             : #define FD_RPC_ERROR_BLOCK_STATUS_NOT_AVAILABLE_YET              (-32014)
     103             : #define FD_RPC_ERROR_UNSUPPORTED_TRANSACTION_VERSION             (-32015)
     104           0 : #define FD_RPC_ERROR_MIN_CONTEXT_SLOT_NOT_REACHED                (-32016)
     105             : #define FD_RPC_ERROR_EPOCH_REWARDS_PERIOD_ACTIVE                 (-32017)
     106             : #define FD_RPC_ERROR_SLOT_NOT_EPOCH_BOUNDARY                     (-32018)
     107             : #define FD_RPC_ERROR_LONG_TERM_STORAGE_UNREACHABLE               (-32019)
     108             : 
     109             : static fd_http_server_params_t
     110           0 : derive_http_params( fd_topo_tile_t const * tile ) {
     111           0 :   return (fd_http_server_params_t) {
     112           0 :     .max_connection_cnt    = tile->rpc.max_http_connections,
     113           0 :     .max_ws_connection_cnt = 0UL,
     114           0 :     .max_request_len       = FD_HTTP_SERVER_RPC_MAX_REQUEST_LEN,
     115           0 :     .max_ws_recv_frame_len = 0UL,
     116           0 :     .max_ws_send_frame_cnt = 0UL,
     117           0 :     .outgoing_buffer_sz    = tile->rpc.send_buffer_size_mb * (1UL<<20UL),
     118           0 :     .compress_websocket    = 0,
     119           0 :   };
     120           0 : }
     121             : 
     122             : struct fd_rpc_in {
     123             :   fd_wksp_t * mem;
     124             :   ulong       chunk0;
     125             :   ulong       wmark;
     126             :   ulong       mtu;
     127             : };
     128             : 
     129             : typedef struct fd_rpc_in fd_rpc_in_t;
     130             : 
     131             : struct fd_rpc_out {
     132             :   ulong       idx;
     133             :   fd_wksp_t * mem;
     134             :   ulong       chunk0;
     135             :   ulong       wmark;
     136             :   ulong       chunk;
     137             : };
     138             : 
     139             : typedef struct fd_rpc_out fd_rpc_out_t;
     140             : 
     141             : struct bank_info {
     142             :   ulong slot;
     143             :   ulong transaction_count;
     144             :   uchar block_hash[ 32 ];
     145             :   ulong block_height;
     146             : 
     147             :   struct {
     148             :     double initial;
     149             :     double terminal;
     150             :     double taper;
     151             :     double foundation;
     152             :     double foundation_term;
     153             :   } inflation;
     154             : 
     155             :   struct {
     156             :     ulong lamports_per_uint8_year;
     157             :     double exemption_threshold;
     158             :     uchar burn_percent;
     159             :   } rent;
     160             : };
     161             : 
     162             : typedef struct bank_info bank_info_t;
     163             : 
     164             : struct fd_rpc_tile {
     165             :   fd_http_server_t * http;
     166             : 
     167             :   bank_info_t * banks;
     168             : 
     169             :   ulong cluster_confirmed_slot;
     170             : 
     171             :   ulong processed_idx;
     172             :   ulong confirmed_idx;
     173             :   ulong finalized_idx;
     174             : 
     175             :   int has_genesis_hash;
     176             :   uchar genesis_hash[ 32 ];
     177             : 
     178             :   long next_poll_deadline;
     179             : 
     180             :   char version_string[ 16UL ];
     181             : 
     182             :   fd_keyswitch_t * keyswitch;
     183             :   uchar identity_pubkey[ 32UL ];
     184             : 
     185             :   int in_kind[ 64UL ];
     186             :   fd_rpc_in_t in[ 64UL ];
     187             : 
     188             :   fd_rpc_out_t replay_out[1];
     189             : };
     190             : 
     191             : typedef struct fd_rpc_tile fd_rpc_tile_t;
     192             : 
     193             : FD_FN_CONST static inline ulong
     194           0 : scratch_align( void ) {
     195           0 :   return alignof( fd_rpc_tile_t );
     196           0 : }
     197             : 
     198             : FD_FN_PURE static inline ulong
     199           0 : scratch_footprint( fd_topo_tile_t const * tile ) {
     200           0 :   ulong http_fp = fd_http_server_footprint( derive_http_params( tile ) );
     201           0 :   if( FD_UNLIKELY( !http_fp ) ) FD_LOG_ERR(( "Invalid [tiles.rpc] config parameters" ));
     202             : 
     203           0 :   ulong l = FD_LAYOUT_INIT;
     204           0 :   l = FD_LAYOUT_APPEND( l, alignof( fd_rpc_tile_t ), sizeof( fd_rpc_tile_t )                      );
     205           0 :   l = FD_LAYOUT_APPEND( l, fd_http_server_align(),   http_fp                                      );
     206           0 :   l = FD_LAYOUT_APPEND( l, fd_alloc_align(),         fd_alloc_footprint()                         );
     207           0 :   l = FD_LAYOUT_APPEND( l, alignof(bank_info_t),     tile->rpc.max_live_slots*sizeof(bank_info_t) );
     208           0 :   return FD_LAYOUT_FINI( l, scratch_align() );
     209           0 : }
     210             : 
     211             : FD_FN_PURE static inline ulong
     212           0 : loose_footprint( fd_topo_tile_t const * tile FD_PARAM_UNUSED ) {
     213           0 :   return 256UL * (1UL<<20UL); /* 256MiB of heap space for the cJSON allocator */
     214           0 : }
     215             : 
     216             : static inline void
     217           0 : during_housekeeping( fd_rpc_tile_t * ctx ) {
     218           0 :   if( FD_UNLIKELY( fd_keyswitch_state_query( ctx->keyswitch )==FD_KEYSWITCH_STATE_SWITCH_PENDING ) ) {
     219           0 :     fd_memcpy( ctx->identity_pubkey, ctx->keyswitch->bytes, 32UL );
     220           0 :     fd_keyswitch_state( ctx->keyswitch, FD_KEYSWITCH_STATE_COMPLETED );
     221           0 :   }
     222           0 : }
     223             : 
     224             : static void
     225             : before_credit( fd_rpc_tile_t *     ctx,
     226             :                fd_stem_context_t * stem,
     227           0 :                int *               charge_busy ) {
     228           0 :   (void)stem;
     229             : 
     230           0 :   long now = fd_tickcount();
     231           0 :   if( FD_UNLIKELY( now>=ctx->next_poll_deadline ) ) {
     232           0 :     *charge_busy = fd_http_server_poll( ctx->http, 0 );
     233           0 :     ctx->next_poll_deadline = fd_tickcount() + (long)(fd_tempo_tick_per_ns( NULL )*128L*1000L);
     234           0 :   }
     235           0 : }
     236             : 
     237             : static inline int
     238             : returnable_frag( fd_rpc_tile_t *     ctx,
     239             :                  ulong               in_idx,
     240             :                  ulong               seq,
     241             :                  ulong               sig,
     242             :                  ulong               chunk,
     243             :                  ulong               sz,
     244             :                  ulong               ctl,
     245             :                  ulong               tsorig,
     246             :                  ulong               tspub,
     247           0 :                  fd_stem_context_t * stem ) {
     248           0 :   (void)ctx;
     249           0 :   (void)in_idx;
     250           0 :   (void)seq;
     251           0 :   (void)sig;
     252           0 :   (void)chunk;
     253           0 :   (void)sz;
     254           0 :   (void)ctl;
     255           0 :   (void)tsorig;
     256           0 :   (void)tspub;
     257           0 :   (void)stem;
     258             : 
     259           0 :   if( ctx->in_kind[ in_idx ]==IN_KIND_REPLAY ) {
     260           0 :     switch( sig ) {
     261           0 :       case REPLAY_SIG_SLOT_COMPLETED: {
     262           0 :         fd_replay_slot_completed_t const * slot_completed = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
     263             : 
     264           0 :         bank_info_t * bank = &ctx->banks[ slot_completed->bank_idx ];
     265           0 :         bank->slot = slot_completed->slot;
     266           0 :         bank->transaction_count = slot_completed->transaction_count;
     267           0 :         bank->block_height = slot_completed->block_height;
     268           0 :         fd_memcpy( bank->block_hash, slot_completed->block_hash.uc, 32 );
     269             : 
     270           0 :         bank->inflation.initial         = slot_completed->inflation.initial;
     271           0 :         bank->inflation.terminal        = slot_completed->inflation.terminal;
     272           0 :         bank->inflation.taper           = slot_completed->inflation.taper;
     273           0 :         bank->inflation.foundation      = slot_completed->inflation.foundation;
     274           0 :         bank->inflation.foundation_term = slot_completed->inflation.foundation_term;
     275             : 
     276           0 :         bank->rent.lamports_per_uint8_year = slot_completed->rent.lamports_per_uint8_year;
     277           0 :         bank->rent.exemption_threshold     = slot_completed->rent.exemption_threshold;
     278           0 :         bank->rent.burn_percent            = slot_completed->rent.burn_percent;
     279             : 
     280           0 :         break;
     281           0 :       }
     282           0 :       case REPLAY_SIG_RESET: {
     283           0 :         fd_poh_reset_t const * reset = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
     284             : 
     285           0 :         ulong prior_processed_idx = ctx->processed_idx;
     286           0 :         ctx->processed_idx = reset->bank_idx;
     287             : 
     288           0 :         if( FD_LIKELY( prior_processed_idx!=ULONG_MAX ) ) fd_stem_publish( stem, ctx->replay_out->idx, prior_processed_idx, 0UL, 0UL, 0UL, 0UL, 0UL );
     289           0 :         break;
     290           0 :       }
     291           0 :       default: break;
     292           0 :     }
     293           0 :   } else if( ctx->in_kind[ in_idx ]==IN_KIND_GENESI ) {
     294           0 :     ctx->has_genesis_hash = 1;
     295           0 :     uchar const * src = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
     296           0 :     if( FD_LIKELY( sig==GENESI_SIG_BOOTSTRAP_COMPLETED ) ) {
     297           0 :       fd_memcpy( ctx->genesis_hash, src+sizeof(fd_lthash_value_t), 32UL );
     298           0 :     } else {
     299           0 :       fd_memcpy( ctx->genesis_hash, src, 32UL );
     300           0 :     }
     301           0 :   }
     302             : 
     303           0 :   return 0;
     304           0 : }
     305             : 
     306             : static void
     307           0 : jsonp_strip_trailing_comma( fd_http_server_t * http ) {
     308           0 :   if( FD_LIKELY( !http->stage_err &&
     309           0 :                   http->stage_len>=1UL &&
     310           0 :                   http->oring[ (http->stage_off%http->oring_sz)+http->stage_len-1UL ]==(uchar)',' ) ) {
     311           0 :     http->stage_len--;
     312           0 :   }
     313           0 : }
     314             : 
     315             : static void
     316             : jsonp_open_object( fd_http_server_t * http,
     317           0 :                    char const *       key ) {
     318           0 :   if( FD_LIKELY( key ) ) fd_http_server_printf( http, "\"%s\":{", key );
     319           0 :   else                   fd_http_server_printf( http, "{" );
     320           0 : }
     321             : 
     322             : static void
     323           0 : jsonp_close_object( fd_http_server_t * http ) {
     324           0 :   jsonp_strip_trailing_comma( http );
     325           0 :   fd_http_server_printf( http, "}," );
     326           0 : }
     327             : 
     328             : 
     329             : static void FD_FN_UNUSED
     330             : jsonp_open_array( fd_http_server_t * http,
     331           0 :                   char const *       key ) {
     332           0 :   if( FD_LIKELY( key ) ) fd_http_server_printf( http, "\"%s\":[", key );
     333           0 :   else                   fd_http_server_printf( http, "[" );
     334           0 : }
     335             : 
     336             : static void FD_FN_UNUSED
     337           0 : jsonp_close_array( fd_http_server_t * http ) {
     338           0 :   jsonp_strip_trailing_comma( http );
     339           0 :   fd_http_server_printf( http, "]," );
     340           0 : }
     341             : 
     342             : static void
     343             : jsonp_ulong( fd_http_server_t * http,
     344             :              char const *       key,
     345           0 :              ulong              value ) {
     346           0 :   if( FD_LIKELY( key ) ) fd_http_server_printf( http, "\"%s\":%lu,", key, value );
     347           0 :   else                   fd_http_server_printf( http, "%lu,", value );
     348           0 : }
     349             : 
     350             : static void FD_FN_UNUSED
     351             : jsonp_long( fd_http_server_t * http,
     352             :             char const *       key,
     353           0 :             long               value ) {
     354           0 :   if( FD_LIKELY( key ) ) fd_http_server_printf( http, "\"%s\":%ld,", key, value );
     355           0 :   else                   fd_http_server_printf( http, "%ld,", value );
     356           0 : }
     357             : 
     358             : static void FD_FN_UNUSED
     359             : jsonp_double( fd_http_server_t * http,
     360             :               char const *       key,
     361           0 :               double             value ) {
     362           0 :   if( FD_LIKELY( key ) ) fd_http_server_printf( http, "\"%s\":%.2f,", key, value );
     363           0 :   else                   fd_http_server_printf( http, "%.2f,", value );
     364           0 : }
     365             : 
     366             : static void
     367             : jsonp_string( fd_http_server_t * http,
     368             :               char const *       key,
     369           0 :               char const *       value ) {
     370           0 :   if( FD_LIKELY( key ) ) fd_http_server_printf( http, "\"%s\":", key );
     371           0 :   if( FD_LIKELY( value ) ) {
     372           0 :     ulong value_len = strlen( value );
     373           0 :     FD_TEST( fd_utf8_verify( value, value_len ) );
     374           0 :     for( ulong i=0UL; i<value_len; i++ ) FD_TEST( value[ i ]>=0x20 && value[ i ]!='"' && value[ i ]!='\\' );
     375             : 
     376           0 :     fd_http_server_printf( http, "\"%s\",", value );
     377           0 :   } else {
     378           0 :     fd_http_server_printf( http, "null," );
     379           0 :   }
     380           0 : }
     381             : 
     382             : static void FD_FN_UNUSED
     383             : jsonp_bool( fd_http_server_t * http,
     384             :             char const *       key,
     385           0 :             int                value ) {
     386           0 :   if( FD_LIKELY( key ) ) fd_http_server_printf( http, "\"%s\":%s,", key, value ? "true" : "false" );
     387           0 :   else                   fd_http_server_printf( http, "%s,", value ? "true" : "false" );
     388           0 : }
     389             : 
     390             : static void FD_FN_UNUSED
     391             : jsonp_null( fd_http_server_t * http,
     392           0 :             char const *       key ) {
     393           0 :   if( FD_LIKELY( key ) ) fd_http_server_printf( http, "\"%s\": null,", key );
     394           0 :   else                   fd_http_server_printf( http, "null," );
     395           0 : }
     396             : 
     397             : static void
     398           0 : jsonp_open_envelope( fd_http_server_t * http ) {
     399           0 :   jsonp_open_object( http, NULL );
     400           0 :   jsonp_string( http, "jsonrpc", "2.0" );
     401           0 :   jsonp_open_object( http, "result" );
     402           0 : }
     403             : 
     404             : static void
     405             : jsonp_close_envelope( fd_http_server_t * http,
     406           0 :                       ulong              id ) {
     407           0 :   jsonp_close_object( http );
     408           0 :   jsonp_ulong( http, "id", id );
     409           0 :   jsonp_close_object( http );
     410           0 :   jsonp_strip_trailing_comma( http );
     411           0 : }
     412             : 
     413             : #define UNIMPLEMENTED(X)                               \
     414             : static fd_http_server_response_t                       \
     415             : X( fd_rpc_tile_t * ctx,                                \
     416             :    ulong           request_id,                         \
     417           0 :    cJSON const *   params ) {                          \
     418           0 :   (void)ctx; (void)request_id; (void)params;           \
     419           0 :   return (fd_http_server_response_t){ .status = 501 }; \
     420           0 : }
     421             : 
     422             : UNIMPLEMENTED(getAccountInfo) // TODO: Used by solana-exporter
     423             : UNIMPLEMENTED(getBalance) // TODO: Used by solana-exporter
     424             : UNIMPLEMENTED(getBlock) // TODO: Used by solana-exporter
     425             : UNIMPLEMENTED(getBlockCommitment)
     426             : 
     427             : static fd_http_server_response_t
     428             : getBlockHeight( fd_rpc_tile_t * ctx,
     429             :                 ulong           request_id,
     430           0 :                 cJSON const *   params ) {
     431           0 :   int commitment = FD_RPC_COMMITMENT_FINALIZED;
     432           0 :   ulong minContextSlot = ULONG_MAX;
     433             : 
     434           0 :   if( FD_UNLIKELY( params && cJSON_GetArraySize( params ) ) ) {
     435           0 :     if( FD_UNLIKELY( cJSON_GetArraySize( params )>1 ) ) return (fd_http_server_response_t){ .status = 400 };
     436             : 
     437           0 :     const cJSON * param = cJSON_GetArrayItem( params, 0 );
     438           0 :     if( FD_UNLIKELY( !cJSON_IsObject( param ) ) ) return (fd_http_server_response_t){ .status = 400 };
     439             : 
     440           0 :     const cJSON * _commitment = cJSON_GetObjectItemCaseSensitive( param, "commitment" );
     441           0 :     if( FD_UNLIKELY( _commitment && ( !cJSON_IsString( _commitment ) || _commitment->valuestring==NULL ) ) ) return (fd_http_server_response_t){ .status = 400 };
     442             : 
     443           0 :     if( FD_LIKELY( !strcmp( _commitment->valuestring, "processed" ) ) ) commitment = FD_RPC_COMMITMENT_PROCESSED;
     444           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "confirmed" ) ) ) commitment = FD_RPC_COMMITMENT_CONFIRMED;
     445           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "finalized" ) ) ) commitment = FD_RPC_COMMITMENT_FINALIZED;
     446           0 :     else return (fd_http_server_response_t){ .status = 400 };
     447             : 
     448           0 :     const cJSON * _minContextSlot = cJSON_GetObjectItemCaseSensitive( param, "minContextSlot" );
     449           0 :     if( FD_UNLIKELY( _minContextSlot ) ) {
     450           0 :       if( FD_UNLIKELY( !cJSON_IsNumber( _minContextSlot ) || _minContextSlot->valueulong==ULONG_MAX ) ) return (fd_http_server_response_t){ .status = 400 };
     451           0 :       minContextSlot = _minContextSlot->valueulong;
     452           0 :     }
     453           0 :   }
     454             : 
     455           0 :   if( FD_UNLIKELY( commitment!=FD_RPC_COMMITMENT_PROCESSED ) ) return (fd_http_server_response_t){ .status = 400 };
     456           0 :   bank_info_t const * bank = &ctx->banks[ ctx->processed_idx ];
     457             : 
     458           0 :   if( FD_UNLIKELY( minContextSlot!=ULONG_MAX && minContextSlot>bank->slot ) ) {
     459           0 :     fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"error\":{\"code\":%d,\"message\":\"Minimum context slot has not been reached\",\"data\":{\"contextSlot\":%lu}},\"id\":%lu}\n", FD_RPC_ERROR_MIN_CONTEXT_SLOT_NOT_REACHED, bank->slot, request_id );
     460           0 :     fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     461           0 :     FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     462           0 :     return response;
     463           0 :   }
     464             : 
     465           0 :   fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"result\":%lu,\"id\":%lu}\n", bank->block_height, request_id );
     466           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     467           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     468           0 :   return response;
     469           0 : }
     470             : 
     471             : UNIMPLEMENTED(getBlockProduction) // TODO: Used by solana-exporter
     472             : UNIMPLEMENTED(getBlocks)
     473             : UNIMPLEMENTED(getBlocksWithLimit)
     474             : UNIMPLEMENTED(getBlockTime)
     475             : UNIMPLEMENTED(getClusterNodes)
     476             : UNIMPLEMENTED(getEpochInfo) // TODO: Used by solana-exporter
     477             : UNIMPLEMENTED(getEpochSchedule)
     478             : UNIMPLEMENTED(getFeeForMessage)
     479             : UNIMPLEMENTED(getFirstAvailableBlock) // TODO: Used by solana-exporter
     480             : 
     481             : /* Get the genesis hash of the cluster.  Firedancer deviates slightly
     482             :    from Agave here, as the genesis hash is not always known when RPC
     483             :    is first booted, it may need to be determined asynchronously in the
     484             :    background, fetched from a peer node.  If the genesis hash is not yet
     485             :    known, we return an error indicating no snapshot is available. */
     486             : 
     487             : static fd_http_server_response_t
     488             : getGenesisHash( fd_rpc_tile_t * ctx,
     489             :                 ulong           request_id,
     490           0 :                 cJSON const *   params ) {
     491           0 :   (void)params;
     492             : 
     493           0 :   if( FD_UNLIKELY( !ctx->has_genesis_hash ) ) {
     494           0 :     fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"error\":{\"code\":%d,\"message\":\"No genesis hash\"},\"id\":%lu}\n", FD_RPC_ERROR_NO_SNAPSHOT, request_id );
     495           0 :     fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     496           0 :     FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     497           0 :     return response;
     498           0 :   }
     499             : 
     500           0 :   fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"result\":\"%s\",\"id\":%lu}\n", FD_BASE58_ENC_32_ALLOCA( ctx->genesis_hash ), request_id );
     501           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     502           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     503           0 :   return response;
     504           0 : }
     505             : 
     506             : /* Determines if the node is healthy.  Agave defines this as follows,
     507             : 
     508             :     - On boot, nodes must go through the entire snapshot slot database
     509             :       and hash everything, and once it's done verify the hash matches.
     510             :       While this is ongoing, the node is unhealthy with a "slotsBehind"
     511             :       value of null.
     512             : 
     513             :     - On boot, if the cluster is restarting and we are currently waiting
     514             :       for a supermajority of stake to join gossip to proceed with
     515             :       booting, the node is forcibly marked as healthy, to, per Agave,
     516             : 
     517             :        > prevent load balancers from removing the node from their list
     518             :        > of candidates during a manual restart
     519             : 
     520             :     - In addition, once booted, there is a period where we do not yet
     521             :       know the cluster confirmed slot, because we have not yet observed
     522             :       any (or enough) votes arrive from peers in the cluster.  During
     523             :       this period the node is unhealthy with a "slotsBehind" value of
     524             :       null.
     525             : 
     526             :     - Finally, once the cluster confirmed slot is known, which is the
     527             :       highest optimistically confirmed slot observed from both gossip,
     528             :       and votes procesed in blocks, it is compared to our own
     529             :       optimistically confirmed slot, which is just the highest slot down
     530             :       the cluster confirmed fork that we have finished replaying
     531             :       locally.  The difference between these two slots is compared, and
     532             :       if it is less than or equal to 128, the node is healthy, otherwise
     533             :       it is unhealthy with a "slotsBehind" value equal to the
     534             :       difference.
     535             : 
     536             :    Firedancer currently only implements the final two checks, and does
     537             :    not forcibly mark the node as healthy while waiting for a
     538             :    supermajority, nor does it mark a node as unhealthy while hashing the
     539             :    snapshot database on boot.  Firedancer hashes snapshots so quickly
     540             :    that the node will die on boot if the hash is not valid. */
     541             : 
     542             : static fd_http_server_response_t
     543             : getHealth( fd_rpc_tile_t * ctx,
     544             :            ulong           request_id,
     545           0 :            cJSON const *   params ) {
     546           0 :   (void)params;
     547             : 
     548             :   // TODO: We should probably implement the same waiting_for_supermajority
     549             :   // logic to conform with Agave here.
     550             : 
     551           0 :   int unknown = ctx->cluster_confirmed_slot==ULONG_MAX || ctx->confirmed_idx==ULONG_MAX;
     552           0 :   if( FD_UNLIKELY( unknown ) ) fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"error\":{\"code\":%d,\"message\":\"Node is unhealthy\",\"data\":{\"slotsBehind\":null}},\"id\":%lu}\n", FD_RPC_ERROR_NODE_UNHEALTHY, request_id );
     553           0 :   else {
     554           0 :     ulong slots_behind = fd_ulong_sat_sub( ctx->cluster_confirmed_slot, ctx->banks[ ctx->confirmed_idx ].slot );
     555           0 :     if( FD_LIKELY( slots_behind<=128UL ) ) fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"result\":\"ok\",\"id\":%lu}\n", request_id );
     556           0 :     else                                   fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"error\":{\"code\":%d,\"message\":\"Node is unhealthy\",\"data\":{\"slotsBehind\":%lu}},\"id\":%lu}\n", FD_RPC_ERROR_NODE_UNHEALTHY, slots_behind, request_id );
     557           0 :   }
     558             : 
     559           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     560           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     561           0 :   return response;
     562           0 : }
     563             : 
     564             : static fd_http_server_response_t
     565             : getHighestSnapshotSlot( fd_rpc_tile_t * ctx,
     566             :                         ulong           request_id,
     567           0 :                         cJSON const *   params ) {
     568           0 :   (void)params;
     569           0 :   fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"error\":{\"code\":%d,\"message\":\"No snapshot\"},\"id\":%lu}\n", FD_RPC_ERROR_NO_SNAPSHOT, request_id );
     570           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     571           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     572           0 :   return response;
     573           0 : }
     574             : 
     575             : static fd_http_server_response_t
     576             : getIdentity( fd_rpc_tile_t * ctx,
     577             :              ulong           request_id,
     578           0 :              cJSON const *   params ) {
     579           0 :   (void)params;
     580             : 
     581           0 :   fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"result\":\"%s\",\"id\":%lu}\n", FD_BASE58_ENC_32_ALLOCA( ctx->identity_pubkey ), request_id );
     582           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     583           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     584           0 :   return response;
     585           0 : }
     586             : 
     587             : static fd_http_server_response_t
     588             : getInflationGovernor( fd_rpc_tile_t * ctx,
     589             :                      ulong           request_id,
     590           0 :                      cJSON const *   params ) {
     591           0 :   (void)params;
     592             : 
     593           0 :   int commitment = FD_RPC_COMMITMENT_FINALIZED;
     594             : 
     595           0 :   if( FD_UNLIKELY( params && cJSON_GetArraySize( params ) ) ) {
     596           0 :     if( FD_UNLIKELY( cJSON_GetArraySize( params )>1 ) ) return (fd_http_server_response_t){ .status = 400 };
     597             : 
     598           0 :     const cJSON * param = cJSON_GetArrayItem( params, 0 );
     599           0 :     if( FD_UNLIKELY( !cJSON_IsObject( param ) ) ) return (fd_http_server_response_t){ .status = 400 };
     600             : 
     601           0 :     const cJSON * _commitment = cJSON_GetObjectItemCaseSensitive( param, "commitment" );
     602           0 :     if( FD_UNLIKELY( _commitment && ( !cJSON_IsString( _commitment ) || _commitment->valuestring==NULL ) ) ) return (fd_http_server_response_t){ .status = 400 };
     603             : 
     604           0 :     if( FD_LIKELY( !strcmp( _commitment->valuestring, "processed" ) ) ) commitment = FD_RPC_COMMITMENT_PROCESSED;
     605           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "confirmed" ) ) ) commitment = FD_RPC_COMMITMENT_CONFIRMED;
     606           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "finalized" ) ) ) commitment = FD_RPC_COMMITMENT_FINALIZED;
     607           0 :     else return (fd_http_server_response_t){ .status = 400 };
     608           0 :   }
     609             : 
     610           0 :   if( FD_UNLIKELY( commitment!=FD_RPC_COMMITMENT_PROCESSED ) ) return (fd_http_server_response_t){ .status = 400 };
     611           0 :   bank_info_t const * bank = &ctx->banks[ ctx->processed_idx ];
     612             : 
     613           0 :   jsonp_open_envelope( ctx->http );
     614           0 :     jsonp_double( ctx->http, "foundation",      bank->inflation.foundation );
     615           0 :     jsonp_double( ctx->http, "foundationTerm",  bank->inflation.foundation_term );
     616           0 :     jsonp_double( ctx->http, "initial",         bank->inflation.initial );
     617           0 :     jsonp_double( ctx->http, "taper",           bank->inflation.taper );
     618           0 :     jsonp_double( ctx->http, "terminal",        bank->inflation.terminal );
     619           0 :   jsonp_close_envelope( ctx->http, request_id );
     620             : 
     621           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     622           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     623           0 :   return response;
     624           0 : }
     625             : 
     626             : UNIMPLEMENTED(getInflationRate)
     627             : UNIMPLEMENTED(getInflationReward) // TODO: Used by solana-exporter
     628             : UNIMPLEMENTED(getLargestAccounts)
     629             : 
     630             : static fd_http_server_response_t
     631             : getLatestBlockhash( fd_rpc_tile_t * ctx,
     632             :                     ulong           request_id,
     633           0 :                     cJSON const *   params ) {
     634           0 :   int commitment = FD_RPC_COMMITMENT_FINALIZED;
     635           0 :   ulong minContextSlot = ULONG_MAX;
     636             : 
     637           0 :   if( FD_UNLIKELY( params && cJSON_GetArraySize( params ) ) ) {
     638           0 :     if( FD_UNLIKELY( cJSON_GetArraySize( params )>1 ) ) return (fd_http_server_response_t){ .status = 400 };
     639             : 
     640           0 :     const cJSON * param = cJSON_GetArrayItem( params, 0 );
     641           0 :     if( FD_UNLIKELY( !cJSON_IsObject( param ) ) ) return (fd_http_server_response_t){ .status = 400 };
     642             : 
     643           0 :     const cJSON * _commitment = cJSON_GetObjectItemCaseSensitive( param, "commitment" );
     644           0 :     if( FD_UNLIKELY( _commitment && ( !cJSON_IsString( _commitment ) || _commitment->valuestring==NULL ) ) ) return (fd_http_server_response_t){ .status = 400 };
     645             : 
     646           0 :     if( FD_LIKELY( !strcmp( _commitment->valuestring, "processed" ) ) ) commitment = FD_RPC_COMMITMENT_PROCESSED;
     647           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "confirmed" ) ) ) commitment = FD_RPC_COMMITMENT_CONFIRMED;
     648           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "finalized" ) ) ) commitment = FD_RPC_COMMITMENT_FINALIZED;
     649           0 :     else return (fd_http_server_response_t){ .status = 400 };
     650             : 
     651           0 :     const cJSON * _minContextSlot = cJSON_GetObjectItemCaseSensitive( param, "minContextSlot" );
     652           0 :     if( FD_UNLIKELY( _minContextSlot ) ) {
     653           0 :       if( FD_UNLIKELY( !cJSON_IsNumber( _minContextSlot ) || _minContextSlot->valueulong==ULONG_MAX ) ) return (fd_http_server_response_t){ .status = 400 };
     654           0 :       minContextSlot = _minContextSlot->valueulong;
     655           0 :     }
     656           0 :   }
     657             : 
     658           0 :   if( FD_UNLIKELY( commitment!=FD_RPC_COMMITMENT_PROCESSED ) ) return (fd_http_server_response_t){ .status = 400 };
     659           0 :   bank_info_t const * bank = &ctx->banks[ ctx->processed_idx ];
     660             : 
     661           0 :   if( FD_UNLIKELY( minContextSlot!=ULONG_MAX && minContextSlot>bank->slot ) ) {
     662           0 :     fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"error\":{\"code\":%d,\"message\":\"Minimum context slot has not been reached\",\"data\":{\"contextSlot\":%lu}},\"id\":%lu}\n", FD_RPC_ERROR_MIN_CONTEXT_SLOT_NOT_REACHED, bank->slot, request_id );
     663           0 :     fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     664           0 :     FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     665           0 :     return response;
     666           0 :   }
     667             : 
     668           0 :   jsonp_open_envelope( ctx->http );
     669           0 :     jsonp_open_object( ctx->http, "context" );
     670           0 :       jsonp_ulong( ctx->http, "slot", bank->slot );
     671           0 :     jsonp_close_object( ctx->http );
     672             : 
     673           0 :     jsonp_open_object( ctx->http, "value" );
     674           0 :       jsonp_string( ctx->http, "blockhash", FD_BASE58_ENC_32_ALLOCA( bank->block_hash ) );
     675           0 :       jsonp_ulong( ctx->http, "lastValidBlockHeight", 0UL /* TODO: Implement */ );
     676           0 :     jsonp_close_object( ctx->http );
     677           0 :   jsonp_close_envelope( ctx->http, request_id );
     678             : 
     679           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     680           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     681           0 :   return response;
     682           0 : }
     683             : 
     684             : UNIMPLEMENTED(getLeaderSchedule) // TODO: Used by solana-exporter
     685             : UNIMPLEMENTED(getMaxRetransmitSlot)
     686             : UNIMPLEMENTED(getMaxShredInsertSlot)
     687             : 
     688             : static fd_http_server_response_t
     689             : getMinimumBalanceForRentExemption( fd_rpc_tile_t * ctx,
     690             :                                    ulong           request_id,
     691           0 :                                    cJSON const *   params ) {
     692           0 :   int commitment = FD_RPC_COMMITMENT_FINALIZED;
     693             : 
     694           0 :   if( FD_UNLIKELY( cJSON_GetArraySize( params )>2 || !cJSON_GetArraySize( params ) ) ) return (fd_http_server_response_t){ .status = 400 };
     695             : 
     696           0 :   const cJSON * data_len = cJSON_GetArrayItem( params, 0 );
     697           0 :   if( FD_UNLIKELY( !cJSON_IsNumber( data_len ) ) ) return (fd_http_server_response_t){ .status = 400 };
     698             : 
     699           0 :   if( FD_UNLIKELY( cJSON_GetArraySize( params )==2 ) ) {
     700           0 :     const cJSON * config = cJSON_GetArrayItem( params, 1 );
     701           0 :     if( FD_UNLIKELY( !cJSON_IsObject( config ) ) ) return (fd_http_server_response_t){ .status = 400 };
     702             : 
     703           0 :     const cJSON * _commitment = cJSON_GetObjectItemCaseSensitive( config, "commitment" );
     704           0 :     if( FD_UNLIKELY( _commitment && ( !cJSON_IsString( _commitment ) || _commitment->valuestring==NULL ) ) ) return (fd_http_server_response_t){ .status = 400 };
     705             : 
     706           0 :     if( FD_UNLIKELY( _commitment ) ) {
     707           0 :       if( FD_LIKELY( !strcmp( _commitment->valuestring, "processed" ) ) ) commitment = FD_RPC_COMMITMENT_PROCESSED;
     708           0 :       else if( FD_LIKELY( !strcmp( _commitment->valuestring, "confirmed" ) ) ) commitment = FD_RPC_COMMITMENT_CONFIRMED;
     709           0 :       else if( FD_LIKELY( !strcmp( _commitment->valuestring, "finalized" ) ) ) commitment = FD_RPC_COMMITMENT_FINALIZED;
     710           0 :       else return (fd_http_server_response_t){ .status = 400 };
     711           0 :     }
     712           0 :   }
     713             : 
     714           0 :   if( FD_UNLIKELY( commitment!=FD_RPC_COMMITMENT_PROCESSED ) ) return (fd_http_server_response_t){ .status = 400 };
     715           0 :   bank_info_t const * bank = &ctx->banks[ ctx->processed_idx ];
     716             : 
     717           0 :   fd_rent_t rent = {
     718           0 :     .lamports_per_uint8_year = bank->rent.lamports_per_uint8_year,
     719           0 :     .exemption_threshold = bank->rent.exemption_threshold,
     720           0 :     .burn_percent = bank->rent.burn_percent,
     721           0 :   };
     722           0 :   ulong minimum = fd_rent_exempt_minimum_balance( &rent, data_len->valueulong );
     723             : 
     724           0 :   fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"result\":%lu,\"id\":%lu}\n", minimum, request_id );
     725           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     726           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     727           0 :   return response;
     728           0 : }
     729             : 
     730             : UNIMPLEMENTED(getMultipleAccounts)
     731             : UNIMPLEMENTED(getProgramAccounts)
     732             : UNIMPLEMENTED(getRecentPerformanceSamples)
     733             : UNIMPLEMENTED(getRecentPrioritizationFees)
     734             : UNIMPLEMENTED(getSignaturesForAddress)
     735             : UNIMPLEMENTED(getSignatureStatuses)
     736             : 
     737             : static fd_http_server_response_t
     738             : getSlot( fd_rpc_tile_t * ctx,
     739             :          ulong           request_id,
     740           0 :          cJSON const *   params ) {
     741           0 :   int commitment = FD_RPC_COMMITMENT_FINALIZED;
     742           0 :   ulong minContextSlot = ULONG_MAX;
     743             : 
     744           0 :   if( FD_UNLIKELY( params && cJSON_GetArraySize( params ) ) ) {
     745           0 :     if( FD_UNLIKELY( cJSON_GetArraySize( params )>1 ) ) return (fd_http_server_response_t){ .status = 400 };
     746             : 
     747           0 :     const cJSON * param = cJSON_GetArrayItem( params, 0 );
     748           0 :     if( FD_UNLIKELY( !cJSON_IsObject( param ) ) ) return (fd_http_server_response_t){ .status = 400 };
     749             : 
     750           0 :     const cJSON * _commitment = cJSON_GetObjectItemCaseSensitive( param, "commitment" );
     751           0 :     if( FD_UNLIKELY( _commitment && ( !cJSON_IsString( _commitment ) || _commitment->valuestring==NULL ) ) ) return (fd_http_server_response_t){ .status = 400 };
     752             : 
     753           0 :     if( FD_LIKELY( !strcmp( _commitment->valuestring, "processed" ) ) ) commitment = FD_RPC_COMMITMENT_PROCESSED;
     754           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "confirmed" ) ) ) commitment = FD_RPC_COMMITMENT_CONFIRMED;
     755           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "finalized" ) ) ) commitment = FD_RPC_COMMITMENT_FINALIZED;
     756           0 :     else return (fd_http_server_response_t){ .status = 400 };
     757             : 
     758           0 :     const cJSON * _minContextSlot = cJSON_GetObjectItemCaseSensitive( param, "minContextSlot" );
     759           0 :     if( FD_UNLIKELY( _minContextSlot ) ) {
     760           0 :       if( FD_UNLIKELY( !cJSON_IsNumber( _minContextSlot ) || _minContextSlot->valueulong==ULONG_MAX ) ) return (fd_http_server_response_t){ .status = 400 };
     761           0 :       minContextSlot = _minContextSlot->valueulong;
     762           0 :     }
     763           0 :   }
     764             : 
     765           0 :   if( FD_UNLIKELY( commitment!=FD_RPC_COMMITMENT_PROCESSED ) ) return (fd_http_server_response_t){ .status = 400 };
     766           0 :   bank_info_t const * bank = &ctx->banks[ ctx->processed_idx ];
     767             : 
     768           0 :   if( FD_UNLIKELY( minContextSlot!=ULONG_MAX && minContextSlot>bank->slot ) ) {
     769           0 :     fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"error\":{\"code\":%d,\"message\":\"Minimum context slot has not been reached\",\"data\":{\"contextSlot\":%lu}},\"id\":%lu}\n", FD_RPC_ERROR_MIN_CONTEXT_SLOT_NOT_REACHED, bank->slot, request_id );
     770           0 :     fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     771           0 :     FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     772           0 :     return response;
     773           0 :   }
     774             : 
     775           0 :   fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"result\":%lu,\"id\":%lu}\n", bank->slot, request_id );
     776           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     777           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     778           0 :   return response;
     779           0 : }
     780             : 
     781             : UNIMPLEMENTED(getSlotLeader)
     782             : UNIMPLEMENTED(getSlotLeaders)
     783             : UNIMPLEMENTED(getStakeMinimumDelegation)
     784             : UNIMPLEMENTED(getSupply)
     785             : UNIMPLEMENTED(getTokenAccountBalance)
     786             : UNIMPLEMENTED(getTokenAccountsByDelegate)
     787             : UNIMPLEMENTED(getTokenAccountsByOwner)
     788             : UNIMPLEMENTED(getTokenLargestAccounts)
     789             : UNIMPLEMENTED(getTokenSupply)
     790             : UNIMPLEMENTED(getTransaction)
     791             : 
     792             : static fd_http_server_response_t
     793             : getTransactionCount( fd_rpc_tile_t * ctx,
     794             :                      ulong           request_id,
     795           0 :                      cJSON const *   params ) {
     796           0 :   int commitment = FD_RPC_COMMITMENT_FINALIZED;
     797           0 :   ulong minContextSlot = ULONG_MAX;
     798             : 
     799           0 :   if( FD_UNLIKELY( params && cJSON_GetArraySize( params ) ) ) {
     800           0 :     if( FD_UNLIKELY( cJSON_GetArraySize( params )>1 ) ) return (fd_http_server_response_t){ .status = 400 };
     801             : 
     802           0 :     const cJSON * param = cJSON_GetArrayItem( params, 0 );
     803           0 :     if( FD_UNLIKELY( !cJSON_IsObject( param ) ) ) return (fd_http_server_response_t){ .status = 400 };
     804             : 
     805           0 :     const cJSON * _commitment = cJSON_GetObjectItemCaseSensitive( param, "commitment" );
     806           0 :     if( FD_UNLIKELY( _commitment && ( !cJSON_IsString( _commitment ) || _commitment->valuestring==NULL ) ) ) return (fd_http_server_response_t){ .status = 400 };
     807             : 
     808           0 :     if( FD_LIKELY( !strcmp( _commitment->valuestring, "processed" ) ) ) commitment = FD_RPC_COMMITMENT_PROCESSED;
     809           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "confirmed" ) ) ) commitment = FD_RPC_COMMITMENT_CONFIRMED;
     810           0 :     else if( FD_LIKELY( !strcmp( _commitment->valuestring, "finalized" ) ) ) commitment = FD_RPC_COMMITMENT_FINALIZED;
     811           0 :     else return (fd_http_server_response_t){ .status = 400 };
     812             : 
     813           0 :     const cJSON * _minContextSlot = cJSON_GetObjectItemCaseSensitive( param, "minContextSlot" );
     814           0 :     if( FD_UNLIKELY( _minContextSlot ) ) {
     815           0 :       if( FD_UNLIKELY( !cJSON_IsNumber( _minContextSlot ) || _minContextSlot->valueulong==ULONG_MAX ) ) return (fd_http_server_response_t){ .status = 400 };
     816           0 :       minContextSlot = _minContextSlot->valueulong;
     817           0 :     }
     818           0 :   }
     819             : 
     820           0 :   if( FD_UNLIKELY( commitment!=FD_RPC_COMMITMENT_PROCESSED ) ) return (fd_http_server_response_t){ .status = 400 };
     821           0 :   bank_info_t const * bank = &ctx->banks[ ctx->processed_idx ];
     822             : 
     823           0 :   if( FD_UNLIKELY( minContextSlot!=ULONG_MAX && minContextSlot>bank->slot ) ) {
     824           0 :     fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"error\":{\"code\":%d,\"message\":\"Minimum context slot has not been reached\",\"data\":{\"contextSlot\":%lu}},\"id\":%lu}\n", FD_RPC_ERROR_MIN_CONTEXT_SLOT_NOT_REACHED, bank->slot, request_id );
     825           0 :     fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     826           0 :     FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     827           0 :     return response;
     828           0 :   }
     829             : 
     830           0 :   fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"result\":%lu,\"id\":%lu}\n", bank->transaction_count, request_id );
     831           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     832           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     833           0 :   return response;
     834           0 : }
     835             : 
     836             : static fd_http_server_response_t
     837             : getVersion( fd_rpc_tile_t * ctx,
     838             :             ulong           request_id,
     839           0 :             cJSON const *   params ) {
     840           0 :   (void)params;
     841             : 
     842           0 :   fd_http_server_printf( ctx->http, "{\"jsonrpc\":\"2.0\",\"result\":{\"solana-core\":\"%s\",\"feature-set\":%u},\"id\":%lu}\n", ctx->version_string, FD_FEATURE_SET_ID, request_id );
     843           0 :   fd_http_server_response_t response = (fd_http_server_response_t){ .content_type = "application/json", .status = 200, .upgrade_websocket = 0 };
     844           0 :   FD_TEST( !fd_http_server_stage_body( ctx->http, &response ) );
     845           0 :   return response;
     846           0 : }
     847             : 
     848             : UNIMPLEMENTED(getVoteAccounts) // TODO: Used by solana-exporter
     849             : UNIMPLEMENTED(isBlockhashValid)
     850             : UNIMPLEMENTED(minimumLedgerSlot) // TODO: Used by solana-exporter
     851             : UNIMPLEMENTED(requestAirdrop)
     852             : UNIMPLEMENTED(sendTransaction)
     853             : UNIMPLEMENTED(simulateTransaction)
     854             : 
     855             : static fd_http_server_response_t
     856           0 : rpc_http_request( fd_http_server_request_t const * request ) {
     857           0 :   fd_rpc_tile_t * ctx = (fd_rpc_tile_t *)request->ctx;
     858             : 
     859           0 :   if( FD_UNLIKELY( request->method!=FD_HTTP_SERVER_METHOD_POST ) ) {
     860           0 :     return (fd_http_server_response_t){
     861           0 :       .status = 400,
     862           0 :     };
     863           0 :   }
     864             : 
     865           0 :   const char * parse_end;
     866           0 :   cJSON * json = cJSON_ParseWithLengthOpts( (char *)request->post.body, request->post.body_len, &parse_end, 0 );
     867           0 :   if( FD_UNLIKELY( !json ) ) {
     868           0 :     return (fd_http_server_response_t){ .status = 400 };
     869           0 :   }
     870             : 
     871           0 :   const cJSON * jsonrpc = cJSON_GetObjectItemCaseSensitive( json, "jsonrpc" );
     872           0 :   if( FD_UNLIKELY( !cJSON_IsString( jsonrpc ) || strcmp( jsonrpc->valuestring, "2.0" ) ) ) goto bad_request;
     873             : 
     874           0 :   const cJSON * id = cJSON_GetObjectItemCaseSensitive( json, "id" );
     875           0 :   ulong request_id = 0UL;
     876           0 :   if( FD_UNLIKELY( !cJSON_IsNumber( id ) ) ) goto bad_request;
     877           0 :   request_id = id->valueulong;
     878             : 
     879           0 :   const cJSON * params = cJSON_GetObjectItemCaseSensitive( json, "params" );
     880           0 :   if( FD_UNLIKELY( params && !cJSON_IsArray( params ) ) ) goto bad_request;
     881             : 
     882           0 :   fd_http_server_response_t response;
     883             : 
     884           0 :   const cJSON * _method = cJSON_GetObjectItemCaseSensitive( json, "method" );
     885           0 :   if( FD_LIKELY( !cJSON_IsString( _method ) || _method->valuestring==NULL ) ) goto bad_request;
     886           0 :   if( FD_LIKELY(      !strcmp( _method->valuestring, "getAccountInfo"                    ) ) ) response = getAccountInfo( ctx, request_id, params );
     887           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getBalance"                        ) ) ) response = getBalance( ctx, request_id, params );
     888           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getBlock"                          ) ) ) response = getBlock( ctx, request_id, params );
     889           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getBlockCommitment"                ) ) ) response = getBlockCommitment( ctx, request_id, params );
     890           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getBlockHeight"                    ) ) ) response = getBlockHeight( ctx, request_id, params );
     891           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getBlockProduction"                ) ) ) response = getBlockProduction( ctx, request_id, params );
     892           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getBlocks"                         ) ) ) response = getBlocks( ctx, request_id, params );
     893           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getBlocksWithLimit"                ) ) ) response = getBlocksWithLimit( ctx, request_id, params );
     894           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getBlockTime"                      ) ) ) response = getBlockTime( ctx, request_id, params );
     895           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getClusterNodes"                   ) ) ) response = getClusterNodes( ctx, request_id, params );
     896           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getEpochInfo"                      ) ) ) response = getEpochInfo( ctx, request_id, params );
     897           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getEpochSchedule"                  ) ) ) response = getEpochSchedule( ctx, request_id, params );
     898           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getFeeForMessage"                  ) ) ) response = getFeeForMessage( ctx, request_id, params );
     899           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getFirstAvailableBlock"            ) ) ) response = getFirstAvailableBlock( ctx, request_id, params );
     900           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getGenesisHash"                    ) ) ) response = getGenesisHash( ctx, request_id, params );
     901           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getHealth"                         ) ) ) response = getHealth( ctx, request_id, params );
     902           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getHighestSnapshotSlot"            ) ) ) response = getHighestSnapshotSlot( ctx, request_id, params );
     903           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getIdentity"                       ) ) ) response = getIdentity( ctx, request_id, params );
     904           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getInflationGovernor"              ) ) ) response = getInflationGovernor( ctx, request_id, params );
     905           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getInflationRate"                  ) ) ) response = getInflationRate( ctx, request_id, params );
     906           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getInflationReward"                ) ) ) response = getInflationReward( ctx, request_id, params );
     907           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getLargestAccounts"                ) ) ) response = getLargestAccounts( ctx, request_id, params );
     908           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getLatestBlockhash"                ) ) ) response = getLatestBlockhash( ctx, request_id, params );
     909           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getLeaderSchedule"                 ) ) ) response = getLeaderSchedule( ctx, request_id, params );
     910           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getMaxRetransmitSlot"              ) ) ) response = getMaxRetransmitSlot( ctx, request_id, params );
     911           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getMaxShredInsertSlot"             ) ) ) response = getMaxShredInsertSlot( ctx, request_id, params );
     912           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getMinimumBalanceForRentExemption" ) ) ) response = getMinimumBalanceForRentExemption( ctx, request_id, params );
     913           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getMultipleAccounts"               ) ) ) response = getMultipleAccounts( ctx, request_id, params );
     914           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getProgramAccounts"                ) ) ) response = getProgramAccounts( ctx, request_id, params );
     915           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getRecentPerformanceSamples"       ) ) ) response = getRecentPerformanceSamples( ctx, request_id, params );
     916           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getRecentPrioritizationFees"       ) ) ) response = getRecentPrioritizationFees( ctx, request_id, params );
     917           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getSignaturesForAddress"           ) ) ) response = getSignaturesForAddress( ctx, request_id, params );
     918           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getSignatureStatuses"              ) ) ) response = getSignatureStatuses( ctx, request_id, params );
     919           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getSlot"                           ) ) ) response = getSlot( ctx, request_id, params );
     920           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getSlotLeader"                     ) ) ) response = getSlotLeader( ctx, request_id, params );
     921           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getSlotLeaders"                    ) ) ) response = getSlotLeaders( ctx, request_id, params );
     922           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getStakeMinimumDelegation"         ) ) ) response = getStakeMinimumDelegation( ctx, request_id, params );
     923           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getSupply"                         ) ) ) response = getSupply( ctx, request_id, params );
     924           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getTokenAccountBalance"            ) ) ) response = getTokenAccountBalance( ctx, request_id, params );
     925           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getTokenAccountsByDelegate"        ) ) ) response = getTokenAccountsByDelegate( ctx, request_id, params );
     926           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getTokenAccountsByOwner"           ) ) ) response = getTokenAccountsByOwner( ctx, request_id, params );
     927           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getTokenLargestAccounts"           ) ) ) response = getTokenLargestAccounts( ctx, request_id, params );
     928           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getTokenSupply"                    ) ) ) response = getTokenSupply( ctx, request_id, params );
     929           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getTransaction"                    ) ) ) response = getTransaction( ctx, request_id, params );
     930           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getTransactionCount"               ) ) ) response = getTransactionCount( ctx, request_id, params );
     931           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getVersion"                        ) ) ) response = getVersion( ctx, request_id, params );
     932           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "getVoteAccounts"                   ) ) ) response = getVoteAccounts( ctx, request_id, params );
     933           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "isBlockhashValid"                  ) ) ) response = isBlockhashValid( ctx, request_id, params );
     934           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "minimumLedgerSlot"                 ) ) ) response = minimumLedgerSlot( ctx, request_id, params );
     935           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "requestAirdrop"                    ) ) ) response = requestAirdrop( ctx, request_id, params );
     936           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "sendTransaction"                   ) ) ) response = sendTransaction( ctx, request_id, params );
     937           0 :   else if( FD_LIKELY( !strcmp( _method->valuestring, "simulateTransaction"               ) ) ) response = simulateTransaction( ctx, request_id, params );
     938           0 :   else goto bad_request;
     939             : 
     940           0 :   cJSON_Delete( json );
     941           0 :   return response;
     942             : 
     943           0 : bad_request:
     944           0 :   cJSON_Delete( json );
     945           0 :   return (fd_http_server_response_t){ .status = 400 };
     946           0 : }
     947             : 
     948             : static void
     949             : privileged_init( fd_topo_t *      topo,
     950           0 :                  fd_topo_tile_t * tile ) {
     951           0 :   void * scratch = fd_topo_obj_laddr( topo, tile->tile_obj_id );
     952             : 
     953           0 :   fd_http_server_params_t http_params = derive_http_params( tile );
     954             : 
     955           0 :   FD_SCRATCH_ALLOC_INIT( l, scratch );
     956           0 :   fd_rpc_tile_t * ctx      = FD_SCRATCH_ALLOC_APPEND( l, alignof( fd_rpc_tile_t ), sizeof( fd_rpc_tile_t ) );
     957           0 :   fd_http_server_t * _http = FD_SCRATCH_ALLOC_APPEND( l, fd_http_server_align(),   fd_http_server_footprint( http_params ) );
     958             : 
     959           0 :   if( FD_UNLIKELY( !strcmp( tile->rpc.identity_key_path, "" ) ) )
     960           0 :     FD_LOG_ERR(( "identity_key_path not set" ));
     961             : 
     962           0 :   const uchar * identity_key = fd_keyload_load( tile->rpc.identity_key_path, /* pubkey only: */ 1 );
     963           0 :   fd_memcpy( ctx->identity_pubkey, identity_key, 32UL );
     964             : 
     965           0 :   fd_http_server_callbacks_t callbacks = {
     966           0 :     .request = rpc_http_request,
     967           0 :   };
     968           0 :   ctx->http = fd_http_server_join( fd_http_server_new( _http, http_params, callbacks, ctx ) );
     969           0 :   fd_http_server_listen( ctx->http, tile->rpc.listen_addr, tile->rpc.listen_port );
     970             : 
     971           0 :   FD_LOG_NOTICE(( "rpc server listening at http://" FD_IP4_ADDR_FMT ":%u", FD_IP4_ADDR_FMT_ARGS( tile->rpc.listen_addr ), tile->rpc.listen_port ));
     972           0 : }
     973             : 
     974             : extern char const fdctl_version_string[];
     975             : 
     976             : static inline fd_rpc_out_t
     977             : out1( fd_topo_t const *      topo,
     978             :       fd_topo_tile_t const * tile,
     979           0 :       char const *           name ) {
     980           0 :   ulong idx = ULONG_MAX;
     981             : 
     982           0 :   for( ulong i=0UL; i<tile->out_cnt; i++ ) {
     983           0 :     fd_topo_link_t const * link = &topo->links[ tile->out_link_id[ i ] ];
     984           0 :     if( !strcmp( link->name, name ) ) {
     985           0 :       if( FD_UNLIKELY( idx!=ULONG_MAX ) ) FD_LOG_ERR(( "tile %s:%lu had multiple output links named %s but expected one", tile->name, tile->kind_id, name ));
     986           0 :       idx = i;
     987           0 :     }
     988           0 :   }
     989             : 
     990           0 :   if( FD_UNLIKELY( idx==ULONG_MAX ) ) return (fd_rpc_out_t){ .idx = ULONG_MAX, .mem = NULL, .chunk0 = 0, .wmark = 0, .chunk = 0 };
     991             : 
     992             : 
     993           0 :   ulong mtu = topo->links[ tile->out_link_id[ idx ] ].mtu;
     994           0 :   if( FD_UNLIKELY( mtu==0UL ) ) return (fd_rpc_out_t){ .idx = idx, .mem = NULL, .chunk0 = ULONG_MAX, .wmark = ULONG_MAX, .chunk = ULONG_MAX };
     995             : 
     996           0 :   void * mem = topo->workspaces[ topo->objs[ topo->links[ tile->out_link_id[ idx ] ].dcache_obj_id ].wksp_id ].wksp;
     997           0 :   ulong chunk0 = fd_dcache_compact_chunk0( mem, topo->links[ tile->out_link_id[ idx ] ].dcache );
     998           0 :   ulong wmark  = fd_dcache_compact_wmark ( mem, topo->links[ tile->out_link_id[ idx ] ].dcache, topo->links[ tile->out_link_id[ idx ] ].mtu );
     999             : 
    1000           0 :   return (fd_rpc_out_t){ .idx = idx, .mem = mem, .chunk0 = chunk0, .wmark = wmark, .chunk = chunk0 };
    1001           0 : }
    1002             : 
    1003             : static void
    1004             : unprivileged_init( fd_topo_t *      topo,
    1005           0 :                    fd_topo_tile_t * tile ) {
    1006           0 :   void * scratch = fd_topo_obj_laddr( topo, tile->tile_obj_id );
    1007             : 
    1008           0 :   FD_SCRATCH_ALLOC_INIT( l, scratch );
    1009           0 :   fd_rpc_tile_t * ctx = FD_SCRATCH_ALLOC_APPEND( l, alignof( fd_rpc_tile_t ), sizeof( fd_rpc_tile_t )                                );
    1010           0 :                         FD_SCRATCH_ALLOC_APPEND( l, fd_http_server_align(),   fd_http_server_footprint( derive_http_params( tile ) ) );
    1011           0 :   void * _alloc       = FD_SCRATCH_ALLOC_APPEND( l, fd_alloc_align(),         fd_alloc_footprint()                                   );
    1012           0 :   void * _banks       = FD_SCRATCH_ALLOC_APPEND( l, alignof(bank_info_t),     tile->rpc.max_live_slots*sizeof(bank_info_t)           );
    1013             : 
    1014           0 :   fd_alloc_t * alloc = fd_alloc_join( fd_alloc_new( _alloc, 1UL ), 1UL );
    1015           0 :   FD_TEST( alloc );
    1016           0 :   cJSON_alloc_install( alloc );
    1017             : 
    1018           0 :   ctx->keyswitch = fd_keyswitch_join( fd_topo_obj_laddr( topo, tile->keyswitch_obj_id ) );
    1019           0 :   FD_TEST( ctx->keyswitch );
    1020             : 
    1021           0 :   ctx->next_poll_deadline = fd_tickcount();
    1022             : 
    1023           0 :   ctx->cluster_confirmed_slot = ULONG_MAX;
    1024             : 
    1025           0 :   ctx->processed_idx = ULONG_MAX;
    1026           0 :   ctx->confirmed_idx = ULONG_MAX;
    1027           0 :   ctx->finalized_idx = ULONG_MAX;
    1028             : 
    1029           0 :   ctx->banks = _banks;
    1030             : 
    1031           0 :   FD_TEST( fd_cstr_printf_check( ctx->version_string, sizeof( ctx->version_string ), NULL, "%s", fdctl_version_string ) );
    1032             : 
    1033           0 :   FD_TEST( tile->in_cnt<=sizeof( ctx->in )/sizeof( ctx->in[ 0 ] ) );
    1034           0 :   for( ulong i=0; i<tile->in_cnt; i++ ) {
    1035           0 :     fd_topo_link_t * link = &topo->links[ tile->in_link_id[ i ] ];
    1036           0 :     fd_topo_wksp_t * link_wksp = &topo->workspaces[ topo->objs[ link->dcache_obj_id ].wksp_id ];
    1037             : 
    1038           0 :     ctx->in[ i ].mem    = link_wksp->wksp;
    1039           0 :     ctx->in[ i ].chunk0 = fd_dcache_compact_chunk0( ctx->in[ i ].mem, link->dcache );
    1040           0 :     ctx->in[ i ].wmark  = fd_dcache_compact_wmark ( ctx->in[ i ].mem, link->dcache, link->mtu );
    1041           0 :     ctx->in[ i ].mtu    = link->mtu;
    1042             : 
    1043           0 :     if( FD_LIKELY( !strcmp( link->name, "replay_out" ) ) ) ctx->in_kind[ i ] = IN_KIND_REPLAY;
    1044           0 :     else if( FD_LIKELY( !strcmp( link->name, "genesi_out" ) ) ) ctx->in_kind[ i ] = IN_KIND_GENESI;
    1045           0 :     else FD_LOG_ERR(( "unexpected link name %s", link->name ));
    1046           0 :   }
    1047             : 
    1048           0 :   *ctx->replay_out = out1( topo, tile, "rpc_replay" ); FD_TEST( ctx->replay_out->idx!=ULONG_MAX );
    1049             : 
    1050           0 :   ulong scratch_top = FD_SCRATCH_ALLOC_FINI( l, 1UL );
    1051           0 :   if( FD_UNLIKELY( scratch_top > (ulong)scratch + scratch_footprint( tile ) ) )
    1052           0 :     FD_LOG_ERR(( "scratch overflow %lu %lu %lu", scratch_top - (ulong)scratch - scratch_footprint( tile ), scratch_top, (ulong)scratch + scratch_footprint( tile ) ));
    1053           0 : }
    1054             : 
    1055             : static ulong
    1056             : populate_allowed_seccomp( fd_topo_t const *      topo,
    1057             :                           fd_topo_tile_t const * tile,
    1058             :                           ulong                  out_cnt,
    1059           0 :                           struct sock_filter *   out ) {
    1060           0 :   void * scratch = fd_topo_obj_laddr( topo, tile->tile_obj_id );
    1061           0 :   FD_SCRATCH_ALLOC_INIT( l, scratch );
    1062           0 :   fd_rpc_tile_t * ctx = FD_SCRATCH_ALLOC_APPEND( l, alignof( fd_rpc_tile_t ), sizeof( fd_rpc_tile_t ) );
    1063             : 
    1064           0 :   populate_sock_filter_policy_fd_rpc_tile( out_cnt, out, (uint)fd_log_private_logfile_fd(), (uint)fd_http_server_fd( ctx->http ) );
    1065           0 :   return sock_filter_policy_fd_rpc_tile_instr_cnt;
    1066           0 : }
    1067             : 
    1068             : static ulong
    1069             : populate_allowed_fds( fd_topo_t const *      topo,
    1070             :                       fd_topo_tile_t const * tile,
    1071             :                       ulong                  out_fds_cnt,
    1072           0 :                       int *                  out_fds ) {
    1073           0 :   void * scratch = fd_topo_obj_laddr( topo, tile->tile_obj_id );
    1074           0 :   FD_SCRATCH_ALLOC_INIT( l, scratch );
    1075           0 :   fd_rpc_tile_t * ctx = FD_SCRATCH_ALLOC_APPEND( l, alignof( fd_rpc_tile_t ), sizeof( fd_rpc_tile_t ) );
    1076             : 
    1077           0 :   if( FD_UNLIKELY( out_fds_cnt<3UL ) ) FD_LOG_ERR(( "out_fds_cnt %lu", out_fds_cnt ));
    1078             : 
    1079           0 :   ulong out_cnt = 0UL;
    1080           0 :   out_fds[ out_cnt++ ] = 2; /* stderr */
    1081           0 :   if( FD_LIKELY( -1!=fd_log_private_logfile_fd() ) )
    1082           0 :     out_fds[ out_cnt++ ] = fd_log_private_logfile_fd(); /* logfile */
    1083           0 :   out_fds[ out_cnt++ ] = fd_http_server_fd( ctx->http ); /* rpc listen socket */
    1084           0 :   return out_cnt;
    1085           0 : }
    1086             : 
    1087             : static ulong
    1088             : rlimit_file_cnt( fd_topo_t const *      topo FD_PARAM_UNUSED,
    1089           0 :                  fd_topo_tile_t const * tile ) {
    1090             :   /* pipefd, socket, stderr, logfile, and one spare for new accept() connections */
    1091           0 :   ulong base = 5UL;
    1092           0 :   return base+tile->rpc.max_http_connections;
    1093           0 : }
    1094             : 
    1095           0 : #define STEM_BURST (1UL)
    1096           0 : #define STEM_LAZY  (50UL)
    1097             : 
    1098           0 : #define STEM_CALLBACK_CONTEXT_TYPE  fd_rpc_tile_t
    1099           0 : #define STEM_CALLBACK_CONTEXT_ALIGN alignof(fd_rpc_tile_t)
    1100             : 
    1101           0 : #define STEM_CALLBACK_DURING_HOUSEKEEPING during_housekeeping
    1102           0 : #define STEM_CALLBACK_BEFORE_CREDIT       before_credit
    1103           0 : #define STEM_CALLBACK_RETURNABLE_FRAG     returnable_frag
    1104             : 
    1105             : #include "../../disco/stem/fd_stem.c"
    1106             : 
    1107             : fd_topo_run_tile_t fd_tile_rpc = {
    1108             :   .name                     = "rpc",
    1109             :   .rlimit_file_cnt_fn       = rlimit_file_cnt,
    1110             :   .populate_allowed_seccomp = populate_allowed_seccomp,
    1111             :   .populate_allowed_fds     = populate_allowed_fds,
    1112             :   .scratch_align            = scratch_align,
    1113             :   .scratch_footprint        = scratch_footprint,
    1114             :   .loose_footprint          = loose_footprint,
    1115             :   .privileged_init          = privileged_init,
    1116             :   .unprivileged_init        = unprivileged_init,
    1117             :   .run                      = stem_run,
    1118             : };

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