diff options
Diffstat (limited to 'zebra/zebra_nhg.c')
| -rw-r--r-- | zebra/zebra_nhg.c | 44 |
1 files changed, 37 insertions, 7 deletions
diff --git a/zebra/zebra_nhg.c b/zebra/zebra_nhg.c index 2a4c708b8f..7430307320 100644 --- a/zebra/zebra_nhg.c +++ b/zebra/zebra_nhg.c @@ -1048,25 +1048,55 @@ int zebra_nhg_kernel_del(uint32_t id) } /* Some dependency helper functions */ -static struct nhg_hash_entry *depends_find(const struct nexthop *nh, afi_t afi) +static struct nhg_hash_entry *depends_find_recursive(const struct nexthop *nh, + afi_t afi) { - struct nexthop lookup; - struct nhg_hash_entry *nhe = NULL; + struct nhg_hash_entry *nhe; + struct nexthop *lookup = NULL; - if (!nh) - goto done; + lookup = nexthop_dup(nh, NULL); + + nhe = zebra_nhg_find_nexthop(0, lookup, afi, 0); + + nexthops_free(lookup); + + return nhe; +} + +static struct nhg_hash_entry *depends_find_singleton(const struct nexthop *nh, + afi_t afi) +{ + struct nhg_hash_entry *nhe; + struct nexthop lookup = {}; /* Capture a snapshot of this single nh; it might be part of a list, * so we need to make a standalone copy. */ - memset(&lookup, 0, sizeof(lookup)); - nexthop_copy(&lookup, nh, NULL); + nexthop_copy_no_recurse(&lookup, nh, NULL); nhe = zebra_nhg_find_nexthop(0, &lookup, afi, 0); /* The copy may have allocated labels; free them if necessary. */ nexthop_del_labels(&lookup); + return nhe; +} + +static struct nhg_hash_entry *depends_find(const struct nexthop *nh, afi_t afi) +{ + struct nhg_hash_entry *nhe = NULL; + + if (!nh) + goto done; + + /* We are separating these functions out to increase handling speed + * in the non-recursive case (by not alloc/freeing) + */ + if (CHECK_FLAG(nh->flags, NEXTHOP_FLAG_RECURSIVE)) + nhe = depends_find_recursive(nh, afi); + else + nhe = depends_find_singleton(nh, afi); + done: return nhe; } |
