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Nexthop: Support for label stack in nest

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This commit is contained in:
Jan Moskyto Matejka
2016-06-10 14:34:41 +02:00
parent 5b208e296f
commit ec5e5d23fa
6 changed files with 83 additions and 29 deletions
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9
nest/route.h
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@@ -338,6 +338,8 @@ struct nexthop {
struct iface *iface; /* Outgoing interface */
struct nexthop *next;
byte weight;
byte labels; /* Number of labels appended */
u32 label[0];
};
struct rte_src {
@@ -510,16 +512,21 @@ 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);
#define NEXTHOP_MAX_LABEL_STACK 8
static inline size_t nexthop_size(const struct nexthop *nh)
{ return sizeof(struct nexthop) + sizeof(u32)*nh->labels; }
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; }
{ memcpy(&a->nh, from, nexthop_size(from)); }
void nexthop_insert(struct nexthop *n, struct nexthop *y);
int nexthop_is_sorted(struct nexthop *x);
void rta_init(void);
static inline size_t rta_size(const rta *a) { return sizeof(rta) + sizeof(u32)*a->nh.labels; }
rta *rta_lookup(rta *); /* Get rta equivalent to this one, uc++ */
static inline int rta_is_cached(rta *r) { return r->aflags & RTAF_CACHED; }
static inline rta *rta_clone(rta *r) { r->uc++; return r; }