diff options
| -rw-r--r-- | src/vnet/ip/ip6_neighbor.c | 93 | ||||
| -rw-r--r-- | src/vpp/api/api.c | 31 |
2 files changed, 59 insertions, 65 deletions
diff --git a/src/vnet/ip/ip6_neighbor.c b/src/vnet/ip/ip6_neighbor.c index 3d48c402..b1a03546 100644 --- a/src/vnet/ip/ip6_neighbor.c +++ b/src/vnet/ip/ip6_neighbor.c @@ -3910,76 +3910,59 @@ vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm, { ip6_neighbor_main_t *nm = &ip6_neighbor_main; ip6_address_t *address = address_arg; - uword *p; + + /* Try to find an existing entry */ + u32 *first = (u32 *) mhash_get (&nm->mac_changes_by_address, address); + u32 *p = first; pending_resolution_t *mc; - void (*fp) (u32, u8 *) = data_callback; + while (p && *p != ~0) + { + mc = pool_elt_at_index (nm->mac_changes, *p); + if (mc->node_index == node_index && mc->type_opaque == type_opaque + && mc->pid == pid) + break; + p = &mc->next_index; + } + int found = p && *p != ~0; if (is_add) { - pool_get (nm->mac_changes, mc); + if (found) + return VNET_API_ERROR_ENTRY_ALREADY_EXISTS; - mc->next_index = ~0; - mc->node_index = node_index; - mc->type_opaque = type_opaque; - mc->data = data; - mc->data_callback = data_callback; - mc->pid = pid; + pool_get (nm->mac_changes, mc); + *mc = (pending_resolution_t) + { + .next_index = ~0,.node_index = node_index,.type_opaque = + type_opaque,.data = data,.data_callback = data_callback,.pid = + pid,}; - p = mhash_get (&nm->mac_changes_by_address, address); + /* Insert new resolution at the end of the list */ + u32 new_idx = mc - nm->mac_changes; if (p) - { - /* Insert new resolution at the head of the list */ - mc->next_index = p[0]; - mhash_unset (&nm->mac_changes_by_address, address, 0); - } - - mhash_set (&nm->mac_changes_by_address, address, - mc - nm->mac_changes, 0); - return 0; + p[0] = new_idx; + else + mhash_set (&nm->mac_changes_by_address, address, new_idx, 0); } else { - u32 index; - pending_resolution_t *mc_last = 0; - - p = mhash_get (&nm->mac_changes_by_address, address); - if (p == 0) + if (!found) return VNET_API_ERROR_NO_SUCH_ENTRY; - index = p[0]; + /* Clients may need to clean up pool entries, too */ + void (*fp) (u32, u8 *) = data_callback; + if (fp) + (*fp) (mc->data, 0 /* no new mac addrs */ ); - while (index != (u32) ~ 0) - { - mc = pool_elt_at_index (nm->mac_changes, index); - if (mc->node_index == node_index && - mc->type_opaque == type_opaque && mc->pid == pid) - { - /* Clients may need to clean up pool entries, too */ - if (fp) - (*fp) (mc->data, 0 /* no new mac addrs */ ); - if (index == p[0]) - { - mhash_unset (&nm->mac_changes_by_address, address, 0); - if (mc->next_index != ~0) - mhash_set (&nm->mac_changes_by_address, address, - mc->next_index, 0); - pool_put (nm->mac_changes, mc); - return 0; - } - else - { - ASSERT (mc_last); - mc_last->next_index = mc->next_index; - pool_put (nm->mac_changes, mc); - return 0; - } - } - mc_last = mc; - index = mc->next_index; - } + /* Remove the entry from the list and delete the entry */ + *p = mc->next_index; + pool_put (nm->mac_changes, mc); - return VNET_API_ERROR_NO_SUCH_ENTRY; + /* Remove from hash if we deleted the last entry */ + if (*p == ~0 && p == first) + mhash_unset (&nm->mac_changes_by_address, address, 0); } + return 0; } int diff --git a/src/vpp/api/api.c b/src/vpp/api/api.c index 09ae8b8f..22410fcc 100644 --- a/src/vpp/api/api.c +++ b/src/vpp/api/api.c @@ -199,7 +199,7 @@ int ip4_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp); int ip6_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp); -void +static void handle_ip4_arp_event (u32 pool_index) { vpe_api_main_t *vam = &vpe_api_main; @@ -1571,11 +1571,12 @@ vl_api_want_ip4_arp_events_t_handler (vl_api_want_ip4_arp_events_t * mp) vpe_api_main_t *am = &vpe_api_main; vnet_main_t *vnm = vnet_get_main (); vl_api_want_ip4_arp_events_reply_t *rmp; - vl_api_ip4_arp_event_t *event; int rv; if (mp->enable_disable) { + vl_api_ip4_arp_event_t *event; + pool_get (am->arp_events, event); rv = vnet_add_del_ip4_arp_change_event (vnm, arp_change_data_callback, mp->pid, &mp->address /* addr, in net byte order */ , @@ -1583,8 +1584,10 @@ vl_api_want_ip4_arp_events_t_handler (vl_api_want_ip4_arp_events_t * mp) IP4_ARP_EVENT, event - am->arp_events, 1 /* is_add */ ); if (rv) - goto out; - pool_get (am->arp_events, event); + { + pool_put (am->arp_events, event); + goto out; + } memset (event, 0, sizeof (*event)); event->_vl_msg_id = ntohs (VL_API_IP4_ARP_EVENT); @@ -1613,12 +1616,24 @@ vl_api_want_ip6_nd_events_t_handler (vl_api_want_ip6_nd_events_t * mp) vpe_api_main_t *am = &vpe_api_main; vnet_main_t *vnm = vnet_get_main (); vl_api_want_ip6_nd_events_reply_t *rmp; - vl_api_ip6_nd_event_t *event; int rv; if (mp->enable_disable) { + vl_api_ip6_nd_event_t *event; pool_get (am->nd_events, event); + + rv = vnet_add_del_ip6_nd_change_event + (vnm, nd_change_data_callback, + mp->pid, mp->address /* addr, in net byte order */ , + vpe_resolver_process_node.index, + IP6_ND_EVENT, event - am->nd_events, 1 /* is_add */ ); + + if (rv) + { + pool_put (am->nd_events, event); + goto out; + } memset (event, 0, sizeof (*event)); event->_vl_msg_id = ntohs (VL_API_IP6_ND_EVENT); @@ -1629,11 +1644,6 @@ vl_api_want_ip6_nd_events_t_handler (vl_api_want_ip6_nd_events_t * mp) if (ip6_address_is_zero ((ip6_address_t *) mp->address)) event->mac_ip = 1; - rv = vnet_add_del_ip6_nd_change_event - (vnm, nd_change_data_callback, - mp->pid, mp->address /* addr, in net byte order */ , - vpe_resolver_process_node.index, - IP6_ND_EVENT, event - am->nd_events, 1 /* is_add */ ); } else { @@ -1643,6 +1653,7 @@ vl_api_want_ip6_nd_events_t_handler (vl_api_want_ip6_nd_events_t * mp) vpe_resolver_process_node.index, IP6_ND_EVENT, ~0 /* pool index */ , 0 /* is_add */ ); } +out: REPLY_MACRO (VL_API_WANT_IP6_ND_EVENTS_REPLY); } |