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BGP: Fix non-transitive ext communities

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This commit is contained in:
Ondrej Zajicek (work) 2017-12-13 15:57:44 +01:00
parent 3e7923507b
commit d807ea087f
3 changed files with 12 additions and 1 deletions
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7
nest/a-set.c
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@ -536,6 +536,13 @@ ec_set_sort(struct linpool *pool, struct adata *src)
return dst;
}
void
ec_set_sort_x(struct adata *set)
{
/* Sort in place */
qsort(set->data, set->length / 8, 8, ec_set_cmp);
}
static int
lc_set_cmp(const void *X, const void *Y)

2
nest/attrs.h
View file

@ -197,4 +197,6 @@ struct adata *int_set_sort(struct linpool *pool, struct adata *src);
struct adata *ec_set_sort(struct linpool *pool, struct adata *src);
struct adata *lc_set_sort(struct linpool *pool, struct adata *src);
void ec_set_sort_x(struct adata *set); /* Sort in place */
#endif

4
proto/bgp/attrs.c
View file

@ -550,10 +550,12 @@ bgp_decode_mp_unreach_nlri(struct bgp_parse_state *s, uint code UNUSED, uint fla
static void
bgp_export_ext_community(struct bgp_export_state *s, eattr *a)
{
a->u.ptr = ec_set_del_nontrans(s->pool, a->u.ptr);
if (a->u.ptr->length == 0)
UNSET(a);
a->u.ptr = ec_set_sort(s->pool, a->u.ptr);
ec_set_sort_x(a->u.ptr);
}
static void