Line data    Source code

       1             : #include "../tiles.h"
       2             : 
       3             : #include "fd_archiver.h"
       4             : #include <unistd.h>
       5             : #include <linux/unistd.h>
       6             : #include <sys/socket.h>
       7             : #include <linux/if_xdp.h>
       8             : #include "generated/archiver_feeder_seccomp.h"
       9             : 
      10             : /* The archiver feeder tiles forward fragments that we want to capture from a subset of
      11             : the input links to the single archiver writer tile.
      12             : 
      13             : There can (should) be many archiver feeder tiles, and a single archiver writer tile.
      14             : 
      15             : This can be used to set up a variety of flexible topologies for capturing, such as round-robin
      16             : or 1-1. */
      17             : 
      18             : #define FD_ARCHIVER_FEEDER_MAX_INPUT_LINKS (32UL)
      19             : 
      20             : typedef struct {
      21             :   fd_wksp_t * mem;
      22             :   ulong       chunk0;
      23             :   ulong       wmark;
      24             : } fd_archiver_feeder_in_ctx_t;
      25             : 
      26             : struct fd_archiver_feeder_tile_ctx {
      27             :   fd_wksp_t * out_mem;
      28             :   ulong       out_chunk0;
      29             :   ulong       out_wmark;
      30             :   ulong       out_chunk;
      31             : 
      32             :   ulong count;
      33             : 
      34             :   ulong round_robin_idx;
      35             :   ulong round_robin_cnt;
      36             : 
      37             :   /* Input links */
      38             :   fd_archiver_feeder_in_ctx_t in[ FD_ARCHIVER_FEEDER_MAX_INPUT_LINKS ];
      39             : };
      40             : typedef struct fd_archiver_feeder_tile_ctx fd_archiver_feeder_tile_ctx_t;
      41             : 
      42             : FD_FN_CONST static inline ulong
      43           0 : scratch_align( void ) {
      44           0 :   return 4096UL;
      45           0 : }
      46             : 
      47             : static ulong
      48             : populate_allowed_seccomp( fd_topo_t const *      topo,
      49             :                           fd_topo_tile_t const * tile,
      50             :                           ulong                  out_cnt,
      51           0 :                           struct sock_filter *   out ) {
      52           0 :   (void)topo;
      53           0 :   (void)tile;
      54             : 
      55           0 :   populate_sock_filter_policy_archiver_feeder( out_cnt, out, (uint)fd_log_private_logfile_fd() );
      56           0 :   return sock_filter_policy_archiver_feeder_instr_cnt;
      57           0 : }
      58             : 
      59             : static ulong
      60             : populate_allowed_fds( fd_topo_t const *      topo,
      61             :                       fd_topo_tile_t const * tile,
      62             :                       ulong                  out_fds_cnt,
      63           0 :                       int *                  out_fds ) {
      64           0 :   (void)topo;
      65           0 :   (void)tile;
      66           0 :   (void)out_fds_cnt;
      67             : 
      68           0 :   ulong out_cnt = 0UL;
      69             : 
      70           0 :   out_fds[ out_cnt++ ] = 2; /* stderr */
      71           0 :   if( FD_LIKELY( -1!=fd_log_private_logfile_fd() ) )
      72           0 :     out_fds[ out_cnt++ ] = fd_log_private_logfile_fd(); /* logfile */
      73             : 
      74           0 :   return out_cnt;
      75           0 : }
      76             : 
      77             : FD_FN_PURE static inline ulong
      78           0 : scratch_footprint( fd_topo_tile_t const * tile ) {
      79           0 :   (void)tile;
      80           0 :   ulong l = FD_LAYOUT_INIT;
      81           0 :   l = FD_LAYOUT_APPEND( l, alignof(fd_archiver_feeder_tile_ctx_t), sizeof(fd_archiver_feeder_tile_ctx_t) );
      82           0 :   return FD_LAYOUT_FINI( l, scratch_align() );
      83           0 : }
      84             : 
      85             : static void
      86             : unprivileged_init( fd_topo_t *      topo,
      87           0 :                    fd_topo_tile_t * tile ) {
      88           0 :   void * scratch = fd_topo_obj_laddr( topo, tile->tile_obj_id );
      89             : 
      90           0 :   FD_SCRATCH_ALLOC_INIT( l, scratch );
      91           0 :   fd_archiver_feeder_tile_ctx_t * ctx = FD_SCRATCH_ALLOC_APPEND( l, alignof(fd_archiver_feeder_tile_ctx_t), sizeof(fd_archiver_feeder_tile_ctx_t) );
      92           0 :   memset( ctx, 0, sizeof(fd_archiver_feeder_tile_ctx_t) );
      93             : 
      94           0 :   ctx->round_robin_cnt = fd_topo_tile_name_cnt( topo, tile->name );
      95           0 :   ctx->round_robin_idx = tile->kind_id;
      96             : 
      97           0 :   for( ulong i=0; i<tile->in_cnt; i++ ) {
      98           0 :     fd_topo_link_t * link = &topo->links[ tile->in_link_id[ i ] ];
      99           0 :     fd_topo_wksp_t * link_wksp = &topo->workspaces[ topo->objs[ link->dcache_obj_id ].wksp_id ];
     100             : 
     101           0 :     ctx->in[ i ].mem    = link_wksp->wksp;
     102           0 :     ctx->in[ i ].chunk0 = fd_dcache_compact_chunk0( ctx->in[ i ].mem, link->dcache );
     103           0 :     ctx->in[ i ].wmark  = fd_dcache_compact_wmark ( ctx->in[ i ].mem, link->dcache, link->mtu );
     104           0 :   }
     105             : 
     106           0 :   ctx->out_mem    = topo->workspaces[ topo->objs[ topo->links[ tile->out_link_id[ 0 ] ].dcache_obj_id ].wksp_id ].wksp;
     107           0 :   ctx->out_chunk0 = fd_dcache_compact_chunk0( ctx->out_mem, topo->links[ tile->out_link_id[ 0 ] ].dcache );
     108           0 :   ctx->out_wmark  = fd_dcache_compact_wmark ( ctx->out_mem, topo->links[ tile->out_link_id[ 0 ] ].dcache, topo->links[ tile->out_link_id[ 0 ] ].mtu );
     109           0 :   ctx->out_chunk  = ctx->out_chunk0;
     110             : 
     111           0 :   ulong scratch_top = FD_SCRATCH_ALLOC_FINI( l, scratch_align() );
     112           0 :   if( FD_UNLIKELY( scratch_top > (ulong)scratch + scratch_footprint( tile ) ) ) {
     113           0 :     FD_LOG_ERR(( "scratch overflow %lu %lu %lu", scratch_top - (ulong)scratch - scratch_footprint( tile ), scratch_top, (ulong)scratch + scratch_footprint( tile ) ));
     114           0 :   }
     115           0 : }
     116             : 
     117             : // TODO: if you wanted, you could round-robin using before_frag
     118             : 
     119             : static inline void
     120             : during_frag( fd_archiver_feeder_tile_ctx_t * ctx,
     121             :              ulong                           in_idx,
     122             :              ulong                           seq,
     123             :              ulong                           sig,
     124             :              ulong                           chunk,
     125             :              ulong                           sz,
     126           0 :              ulong                           ctl FD_PARAM_UNUSED ) {
     127             :   /* TODO: filter by signature in before_credit */
     128           0 :   if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark ) ) {
     129           0 :     FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz, ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
     130           0 :   }
     131             : 
     132           0 :   uchar * src = (uchar *)fd_chunk_to_laddr( ctx->in[in_idx].mem, chunk );
     133           0 :   uchar * dst = (uchar *)fd_chunk_to_laddr( ctx->out_mem, ctx->out_chunk );
     134             : 
     135           0 :   if( FD_LIKELY( sz ) ) {
     136             :     /* Write the header to the dst */
     137           0 :     fd_archiver_frag_header_t * header = fd_type_pun( dst );
     138           0 :     header->magic                      = FD_ARCHIVER_HEADER_MAGIC;
     139           0 :     header->version                    = FD_ARCHIVER_HEADER_VERSION;
     140           0 :     header->tile_id                    = FD_ARCHIVER_SIG_TILE_ID(sig);
     141             :     /* header->ns_since_prev_fragment is set in the single writer tile, so that we have a total order */
     142           0 :     header->sz                         = sz;
     143           0 :     header->sig                        = FD_ARCHIVER_SIG_CLEAR(sig);
     144           0 :     header->seq                        = seq;
     145             : 
     146             :     /* Write the frag to the dst */
     147           0 :     fd_memcpy( dst + FD_ARCHIVER_FRAG_HEADER_FOOTPRINT, src, sz );
     148           0 :   }
     149           0 : }
     150             : 
     151             : static inline void
     152             : after_frag( fd_archiver_feeder_tile_ctx_t * ctx,
     153             :             ulong                           in_idx FD_PARAM_UNUSED,
     154             :             ulong                           seq    FD_PARAM_UNUSED,
     155             :             ulong                           sig    FD_PARAM_UNUSED,
     156             :             ulong                           sz,
     157             :             ulong                           tsorig,
     158             :             ulong                           tspub  FD_PARAM_UNUSED,
     159           0 :             fd_stem_context_t *             stem ) {
     160             :   /* Publish the message to the queue */
     161           0 :   ulong full_sz = sz + FD_ARCHIVER_FRAG_HEADER_FOOTPRINT;
     162           0 :   fd_stem_publish( stem, 0UL, 0UL, ctx->out_chunk, full_sz, 0UL, tsorig, 0UL);
     163           0 :   ctx->out_chunk = fd_dcache_compact_next( ctx->out_chunk, full_sz, ctx->out_chunk0, ctx->out_wmark );
     164           0 : }
     165             : 
     166           0 : #define STEM_BURST (1UL)
     167             : 
     168           0 : #define STEM_CALLBACK_CONTEXT_TYPE  fd_archiver_feeder_tile_ctx_t
     169           0 : #define STEM_CALLBACK_CONTEXT_ALIGN alignof(fd_archiver_feeder_tile_ctx_t)
     170             : 
     171           0 : #define STEM_CALLBACK_DURING_FRAG         during_frag
     172           0 : #define STEM_CALLBACK_AFTER_FRAG          after_frag
     173             : 
     174             : #include "../stem/fd_stem.c"
     175             : 
     176             : fd_topo_run_tile_t fd_tile_archiver_feeder = {
     177             :   .name                     = "arch_f",
     178             :   .populate_allowed_seccomp = populate_allowed_seccomp,
     179             :   .populate_allowed_fds     = populate_allowed_fds,
     180             :   .scratch_align            = scratch_align,
     181             :   .scratch_footprint        = scratch_footprint,
     182             :   .unprivileged_init        = unprivileged_init,
     183             :   .run                      = stem_run,
     184             : };