diff options
Diffstat (limited to 'lib/mac-learning.h')
| -rw-r--r-- | lib/mac-learning.h | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/lib/mac-learning.h b/lib/mac-learning.h index c4a0e28b..89a4e909 100644 --- a/lib/mac-learning.h +++ b/lib/mac-learning.h @@ -31,11 +31,22 @@ /* Time, in seconds, before expiring a mac_entry due to inactivity. */ #define MAC_ENTRY_IDLE_TIME 60 +/* Time, in seconds, to lock an entry updated by a gratuitous ARP to avoid + * relearning based on a reflection from a bond slave. */ +#define MAC_GRAT_ARP_LOCK_TIME 5 + +enum grat_arp_lock_type { + GRAT_ARP_LOCK_NONE, + GRAT_ARP_LOCK_SET, + GRAT_ARP_LOCK_CHECK +}; + /* A MAC learning table entry. */ struct mac_entry { struct list hash_node; /* Element in a mac_learning 'table' list. */ struct list lru_node; /* Element in 'lrus' or 'free' list. */ time_t expires; /* Expiration time. */ + time_t grat_arp_lock; /* Gratuitous ARP lock expiration time. */ uint8_t mac[ETH_ADDR_LEN]; /* Known MAC address. */ uint16_t vlan; /* VLAN tag. */ int port; /* Port on which MAC was most recently seen. */ @@ -61,12 +72,15 @@ bool mac_learning_set_flood_vlans(struct mac_learning *, unsigned long *bitmap); tag_type mac_learning_learn(struct mac_learning *, const uint8_t src[ETH_ADDR_LEN], uint16_t vlan, - uint16_t src_port); + uint16_t src_port, enum grat_arp_lock_type + lock_type); int mac_learning_lookup(const struct mac_learning *, - const uint8_t dst[ETH_ADDR_LEN], uint16_t vlan); + const uint8_t dst[ETH_ADDR_LEN], uint16_t vlan, + bool *is_grat_arp_locked); int mac_learning_lookup_tag(const struct mac_learning *, const uint8_t dst[ETH_ADDR_LEN], - uint16_t vlan, tag_type *tag); + uint16_t vlan, tag_type *tag, + bool *is_grat_arp_locked); void mac_learning_flush(struct mac_learning *); void mac_learning_run(struct mac_learning *, struct tag_set *); void mac_learning_wait(struct mac_learning *); |