diff options
Diffstat (limited to 'nest/rt.h')
| -rw-r--r-- | nest/rt.h | 44 |
1 files changed, 16 insertions, 28 deletions
@@ -438,39 +438,27 @@ struct rt_show_data_rtable * rt_show_add_table(struct rt_show_data *d, rtable *t #define RSEM_NOEXPORT 3 /* Routes rejected by export filter */ #define RSEM_EXPORTED 4 /* Routes marked in export map */ +/* Host entry: Resolve hook for recursive nexthops */ +extern struct ea_class ea_gen_hostentry; +struct hostentry_adata { + adata ad; + struct hostentry *he; + u32 labels[0]; +}; + +void +ea_set_hostentry(ea_list **to, struct rtable *dep, struct rtable *tab, ip_addr gw, ip_addr ll, u32 lnum, u32 labels[lnum]); + +/* struct hostentry * rt_get_hostentry(rtable *tab, ip_addr a, ip_addr ll, rtable *dep); -void rta_apply_hostentry(rta *a, struct hostentry *he); +void rta_apply_hostentry(rta *a, struct hostentry *he, u32 lnum, u32 labels[lnum]); static inline void -rta_set_recursive_next_hop(rtable *dep, rta *a, rtable *tab, ip_addr gw, ip_addr ll) +rta_set_recursive_next_hop(rtable *dep, rta *a, rtable *tab, ip_addr gw, ip_addr ll, u32 lnum, u32 labels[lnum]) { - rta_apply_hostentry(a, rt_get_hostentry(tab, gw, ll, dep)); + rta_apply_hostentry(a, rt_get_hostentry(tab, gw, ll, dep), lnum, labels); } - -/* - * rta_set_recursive_next_hop() acquires hostentry from hostcache and fills - * rta->hostentry field. New hostentry has zero use count. Cached rta locks its - * hostentry (increases its use count), uncached rta does not lock it. Hostentry - * with zero use count is removed asynchronously during host cache update, - * therefore it is safe to hold such hostentry temorarily. Hostentry holds a - * lock for a 'source' rta, mainly to share multipath nexthops. - * - * There is no need to hold a lock for hostentry->dep table, because that table - * contains routes responsible for that hostentry, and therefore is non-empty if - * given hostentry has non-zero use count. If the hostentry has zero use count, - * the entry is removed before dep is referenced. - * - * The protocol responsible for routes with recursive next hops should hold a - * lock for a 'source' table governing that routes (argument tab to - * rta_set_recursive_next_hop()), because its routes reference hostentries - * (through rta) related to the governing table. When all such routes are - * removed, rtas are immediately removed achieving zero uc. Then the 'source' - * table lock could be immediately released, although hostentries may still - * exist - they will be freed together with the 'source' table. - */ - -static inline void rt_lock_hostentry(struct hostentry *he) { if (he) he->uc++; } -static inline void rt_unlock_hostentry(struct hostentry *he) { if (he) he->uc--; } +*/ int rt_flowspec_check(rtable *tab_ip, rtable *tab_flow, const net_addr *n, rta *a, int interior); |