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             : extern fd_topo_run_tile_t fd_tile_netlnk;
      14             : 
      15             : /* fd_netlink_neigh4_solicit_link_t holds information required to send
      16             :    neighbor solicitation requests to the netlink tile. */
      17             : 
      18             : struct fd_netlink_neigh4_solicit_link {
      19             :   fd_frag_meta_t * mcache;
      20             :   ulong            depth;
      21             :   ulong            seq;
      22             : };
      23             : 
      24             : typedef struct fd_netlink_neigh4_solicit_link fd_netlink_neigh4_solicit_link_t;
      25             : 
      26             : struct fdctl_config;
      27             : 
      28             : FD_PROTOTYPES_BEGIN
      29             : 
      30             : void
      31             : fd_netlink_topo_create( fd_topo_tile_t * netlink_tile,
      32             :                         fd_topo_t *      topo,
      33             :                         ulong            netlnk_max_routes,
      34             :                         ulong            netlnk_max_neighbors,
      35             :                         char const *     bind_interface );
      36             : 
      37             : void
      38             : fd_netlink_topo_join( fd_topo_t *      topo,
      39             :                       fd_topo_tile_t * netlink_tile,
      40             :                       fd_topo_tile_t * join_tile );
      41             : 
      42             : /* fd_netlink_neigh4_solicit requests a neighbor solicitation (i.e. ARP
      43             :    request) for an IPv4 address.  Safe to call at a high rate.  The
      44             :    netlink tile will deduplicate requests.  ip4_addr is big endian. */
      45             : 
      46             : static inline void
      47             : fd_netlink_neigh4_solicit( fd_netlink_neigh4_solicit_link_t * link,
      48             :                            uint                               ip4_addr,
      49             :                            uint                               if_idx,
      50           0 :                            ulong                              tspub_comp ) {
      51           0 :   ulong seq = link->seq;
      52           0 :   ulong sig = (ulong)ip4_addr | ( (ulong)if_idx<<32 );
      53           0 :   fd_mcache_publish( link->mcache, link->depth, seq, sig, 0UL, 0UL, 0UL, 0UL, tspub_comp );
      54           0 :   link->seq = fd_seq_inc( seq, 1UL );
      55           0 : }
      56             : 
      57             : FD_PROTOTYPES_END
      58             : 
      59             : #endif /* HEADER_fd_src_disco_netlink_fd_netlink_tile_h */