diff options
Diffstat (limited to 'nest/route.h')
| -rw-r--r-- | nest/route.h | 45 |
1 files changed, 22 insertions, 23 deletions
diff --git a/nest/route.h b/nest/route.h index d652ca15..37c9abfb 100644 --- a/nest/route.h +++ b/nest/route.h @@ -195,7 +195,7 @@ struct hostentry { unsigned hash_key; /* Hash key */ unsigned uc; /* Use count */ struct rta *src; /* Source rta entry */ - ip_addr gw; /* Chosen next hop */ + struct nexthop *nh; /* Chosen next hop */ byte dest; /* Chosen route destination type (RTD_...) */ u32 igp_metric; /* Chosen route IGP metric */ }; @@ -332,11 +332,11 @@ void rt_show(struct rt_show_data *); * construction of BGP route attribute lists. */ -/* Multipath next-hop */ -struct mpnh { +/* Nexthop structure */ +struct nexthop { ip_addr gw; /* Next hop */ struct iface *iface; /* Outgoing interface */ - struct mpnh *next; + struct nexthop *next; byte weight; }; @@ -353,20 +353,19 @@ typedef struct rta { struct rta *next, **pprev; /* Hash chain */ u32 uc; /* Use count */ u32 hash_key; /* Hash over important fields */ - struct mpnh *nexthops; /* Next-hops for multipath routes */ struct ea_list *eattrs; /* Extended Attribute chain */ struct rte_src *src; /* Route source that created the route */ struct hostentry *hostentry; /* Hostentry for recursive next-hops */ - struct iface *iface; /* Outgoing interface */ - ip_addr gw; /* Next hop */ ip_addr from; /* Advertising router */ u32 igp_metric; /* IGP metric to next hop (for iBGP routes) */ - byte source; /* Route source (RTS_...) */ - byte scope; /* Route scope (SCOPE_... -- see ip.h) */ - byte cast; /* Casting type (RTC_...) */ - byte dest; /* Route destination type (RTD_...) */ - byte flags; /* Route flags (RTF_...), now unused */ - byte aflags; /* Attribute cache flags (RTAF_...) */ + u32 bf[0]; + u32 source:6; /* Route source (RTS_...) */ + u32 scope:6; /* Route scope (SCOPE_... -- see ip.h) */ + u32 cast:6; /* Casting type (RTC_...) */ + u32 dest:6; /* Route destination type (RTD_...) */ +// u32 eflags:8; /* Flags (RTAF_...) */ + u32 aflags:8; + struct nexthop nh; /* Next hop */ } rta; #define RTS_DUMMY 0 /* Dummy route to be removed soon */ @@ -391,12 +390,10 @@ typedef struct rta { #define RTC_MULTICAST 2 #define RTC_ANYCAST 3 /* IPv6 Anycast */ -#define RTD_ROUTER 0 /* Next hop is neighbor router */ -#define RTD_DEVICE 1 /* Points to device */ +#define RTD_UNICAST 0 /* Next hop is neighbor router */ #define RTD_BLACKHOLE 2 /* Silently drop packets */ #define RTD_UNREACHABLE 3 /* Reject as unreachable */ #define RTD_PROHIBIT 4 /* Administratively prohibited */ -#define RTD_MULTIPATH 5 /* Multipath route (nexthops != NULL) */ #define RTD_NONE 6 /* Invalid RTD */ /* Flags for net->n.flags, used by kernel syncer */ @@ -411,7 +408,7 @@ typedef struct rta { /* Route has regular, reachable nexthop (i.e. not RTD_UNREACHABLE and like) */ static inline int rte_is_reachable(rte *r) -{ uint d = r->attrs->dest; return (d == RTD_ROUTER) || (d == RTD_DEVICE) || (d == RTD_MULTIPATH); } +{ uint d = r->attrs->dest; return (d == RTD_UNICAST); } /* @@ -516,12 +513,14 @@ uint ea_hash(ea_list *e); /* Calculate 16-bit hash value */ ea_list *ea_append(ea_list *to, ea_list *what); void ea_format_bitfield(struct eattr *a, byte *buf, int bufsize, const char **names, int min, int max); -int mpnh__same(struct mpnh *x, struct mpnh *y); /* Compare multipath nexthops */ -static inline int mpnh_same(struct mpnh *x, struct mpnh *y) -{ return (x == y) || mpnh__same(x, y); } -struct mpnh *mpnh_merge(struct mpnh *x, struct mpnh *y, int rx, int ry, int max, linpool *lp); -void mpnh_insert(struct mpnh **n, struct mpnh *y); -int mpnh_is_sorted(struct mpnh *x); +int nexthop__same(struct nexthop *x, struct nexthop *y); /* Compare multipath nexthops */ +static inline int nexthop_same(struct nexthop *x, struct nexthop *y) +{ return (x == y) || nexthop__same(x, y); } +struct nexthop *nexthop_merge(struct nexthop *x, struct nexthop *y, int rx, int ry, int max, linpool *lp); +static inline void nexthop_link(struct rta *a, struct nexthop *from) +{ a->nh.gw = from->gw; a->nh.iface = from->iface; a->nh.weight = from->weight; a->nh.next = from->next; } +void nexthop_insert(struct nexthop *n, struct nexthop *y); +int nexthop_is_sorted(struct nexthop *x); void rta_init(void); rta *rta_lookup(rta *); /* Get rta equivalent to this one, uc++ */ |