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authorEyal Bari <ebari@cisco.com>2017-09-20 11:29:17 +0300
committerJohn Lo <loj@cisco.com>2017-09-22 01:55:33 +0000
commitc125eccc10db9c0b9c5d161d3ad20b4fc8c69b26 (patch)
treeaf209e8188ebc6d8ae8719a6307117acd5e41063 /src/vnet/ip/ip6_neighbor.c
parent03add7f5b5e5351790187ea6d7e83803d5be2440 (diff)
IP-MAC,ND:wildcard events,fix sending multiple events
wildcard ND events publisher was sending the last event mutiple times Change-Id: I6c30f2de03fa825e79df9005a3cfaaf68ff7ea2f Signed-off-by: Eyal Bari <ebari@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip6_neighbor.c')
-rw-r--r--src/vnet/ip/ip6_neighbor.c73
1 files changed, 53 insertions, 20 deletions
diff --git a/src/vnet/ip/ip6_neighbor.c b/src/vnet/ip/ip6_neighbor.c
index 345ebd34518..1908a679e2e 100644
--- a/src/vnet/ip/ip6_neighbor.c
+++ b/src/vnet/ip/ip6_neighbor.c
@@ -195,6 +195,9 @@ typedef struct
u32 limit_neighbor_cache_size;
u32 neighbor_delete_rotor;
+ /* Wildcard nd report publisher */
+ uword wc_ip6_nd_publisher_node;
+ uword wc_ip6_nd_publisher_et;
} ip6_neighbor_main_t;
/* ipv6 neighbor discovery - timer/event types */
@@ -216,6 +219,50 @@ typedef union
static ip6_neighbor_main_t ip6_neighbor_main;
static ip6_address_t ip6a_zero; /* ip6 address 0 */
+static void wc_nd_signal_report (wc_nd_report_t * r);
+
+/**
+ * @brief publish wildcard arp event
+ * @param sw_if_index The interface on which the ARP entires are acted
+ */
+static int
+vnet_nd_wc_publish (u32 sw_if_index, u8 * mac, ip6_address_t * ip6)
+{
+ wc_nd_report_t r = {
+ .sw_if_index = sw_if_index,
+ .ip6 = *ip6,
+ };
+ memcpy (r.mac, mac, sizeof r.mac);
+
+ void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
+ vl_api_rpc_call_main_thread (wc_nd_signal_report, (u8 *) & r, sizeof r);
+ return 0;
+}
+
+static void
+wc_nd_signal_report (wc_nd_report_t * r)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ uword ni = nm->wc_ip6_nd_publisher_node;
+ uword et = nm->wc_ip6_nd_publisher_et;
+
+ if (ni == (uword) ~ 0)
+ return;
+ wc_nd_report_t *q =
+ vlib_process_signal_event_data (vm, ni, et, 1, sizeof *q);
+
+ *q = *r;
+}
+
+void
+wc_nd_set_publisher_node (uword node_index, uword event_type)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ nm->wc_ip6_nd_publisher_node = node_index;
+ nm->wc_ip6_nd_publisher_et = event_type;
+}
+
static u8 *
format_ip6_neighbor_ip6_entry (u8 * s, va_list * va)
{
@@ -3931,6 +3978,8 @@ ip6_neighbor_init (vlib_main_t * vm)
/* default, configurable */
nm->limit_neighbor_cache_size = 50000;
+ nm->wc_ip6_nd_publisher_node = (uword) ~ 0;
+
#if 0
/* $$$$ Hack fix for today */
vec_validate_init_empty
@@ -4047,7 +4096,6 @@ vnet_ip6_nd_term (vlib_main_t * vm,
{
ip6_neighbor_main_t *nm = &ip6_neighbor_main;
icmp6_neighbor_solicitation_or_advertisement_header_t *ndh;
- pending_resolution_t *mc;
ndh = ip6_next_header (ip);
if (ndh->icmp.type != ICMP6_neighbor_solicitation &&
@@ -4063,26 +4111,11 @@ vnet_ip6_nd_term (vlib_main_t * vm,
}
/* Check if anyone want ND events for L2 BDs */
- uword *p = mhash_get (&nm->mac_changes_by_address, &ip6a_zero);
- if (p && !ip6_address_is_link_local_unicast (&ip->src_address))
+ if (PREDICT_FALSE
+ (nm->wc_ip6_nd_publisher_node != (uword) ~ 0
+ && !ip6_address_is_link_local_unicast (&ip->src_address)))
{
- u32 next_index = p[0];
- while (next_index != (u32) ~ 0)
- {
- int (*fp) (u32, u8 *, u32, ip6_address_t *);
- int rv = 1;
- mc = pool_elt_at_index (nm->mac_changes, next_index);
- fp = mc->data_callback;
- /* Call the callback, return 1 to suppress dup events */
- if (fp)
- rv = (*fp) (mc->data,
- eth->src_address, sw_if_index, &ip->src_address);
- /* Signal the resolver process */
- if (rv == 0)
- vlib_process_signal_event (vm, mc->node_index,
- mc->type_opaque, mc->data);
- next_index = mc->next_index;
- }
+ vnet_nd_wc_publish (sw_if_index, eth->src_address, &ip->src_address);
}
/* Check if MAC entry exsist for solicited target IP */