Line data    Source code

       1             : #ifndef HEADER_fd_src_disco_netlink_fd_netlink_tile_h
       2             : #define HEADER_fd_src_disco_netlink_fd_netlink_tile_h
       3             : 
       4             : /* fd_netlink_tile.h provides APIs for working with the netlink tile. */
       5             : 
       6             : #include "../topo/fd_topo.h"
       7             : 
       8             : /* fd_tile_netlnk provides the netlink tile.
       9             : 
      10             :    Consult /book/guide/netlink.md for more information.
      11             :    Web mirror: https://docs.firedancer.io/guide/netlink.html */
      12             : 
      13             : FD_PROTOTYPES_BEGIN
      14             : extern fd_topo_run_tile_t fd_tile_netlnk;
      15             : FD_PROTOTYPES_END
      16             : 
      17             : /* fd_netlink_neigh4_solicit_link_t holds information required to send
      18             :    neighbor solicitation requests to the netlink tile. */
      19             : 
      20             : struct fd_netlink_neigh4_solicit_link {
      21             :   fd_frag_meta_t * mcache;
      22             :   ulong            depth;
      23             :   ulong            seq;
      24             : };
      25             : 
      26             : typedef struct fd_netlink_neigh4_solicit_link fd_netlink_neigh4_solicit_link_t;
      27             : 
      28             : struct fdctl_config;
      29             : 
      30             : FD_PROTOTYPES_BEGIN
      31             : 
      32             : void
      33             : fd_netlink_topo_create( fd_topo_tile_t * netlink_tile,
      34             :                         fd_topo_t *      topo,
      35             :                         ulong            netlnk_max_routes,
      36             :                         ulong            netlnk_max_neighbors,
      37             :                         char const *     bind_interface );
      38             : 
      39             : void
      40             : fd_netlink_topo_join( fd_topo_t *      topo,
      41             :                       fd_topo_tile_t * netlink_tile,
      42             :                       fd_topo_tile_t * join_tile );
      43             : 
      44             : /* fd_netlink_neigh4_solicit requests a neighbor solicitation (i.e. ARP
      45             :    request) for an IPv4 address.  Safe to call at a high rate.  The
      46             :    netlink tile will deduplicate requests.  ip4_addr is big endian. */
      47             : 
      48             : static inline void
      49             : fd_netlink_neigh4_solicit( fd_netlink_neigh4_solicit_link_t * link,
      50             :                            uint                               ip4_addr,
      51             :                            uint                               if_idx,
      52           0 :                            ulong                              tspub_comp ) {
      53           0 :   ulong seq = link->seq;
      54           0 :   ulong sig = (ulong)ip4_addr | ( (ulong)if_idx<<32 );
      55           0 :   fd_mcache_publish( link->mcache, link->depth, seq, sig, 0UL, 0UL, 0UL, 0UL, tspub_comp );
      56           0 :   link->seq = fd_seq_inc( seq, 1UL );
      57           0 : }
      58             : 
      59             : FD_PROTOTYPES_END
      60             : 
      61             : #endif /* HEADER_fd_src_disco_netlink_fd_netlink_tile_h */