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authorNeale Ranns <nranns@cisco.com>2019-09-30 10:53:31 +0000
committerOle Trøan <otroan@employees.org>2019-12-17 10:56:20 +0000
commitcbe25aab3be72154f2c706c39eeba6a77f34450f (patch)
tree131fb53b5ec973be045ffb9e2eb797af01d112a0 /src/vnet/adj
parent96453fd2417ebd1d69354a7fb692976129cea80e (diff)
ip: Protocol Independent IP Neighbors
Type: feature - ip-neighbour: generic neighbour handling; APIs, DBs, event handling, aging - arp: ARP protocol implementation - ip6-nd; IPv6 neighbor discovery implementation; separate ND, MLD, RA - ip6-link; manage link-local addresses - l2-arp-term; events separated from IP neighbours, since they are not the same. vnet retains just enough education to perform ND/ARP packet construction. arp and ip6-nd to be moved to plugins soon. Change-Id: I88dedd0006b299344f4c7024a0aa5baa6b9a8bbe Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/adj')
-rw-r--r--src/vnet/adj/adj.h4
-rw-r--r--src/vnet/adj/adj_glean.c11
-rw-r--r--src/vnet/adj/adj_internal.h2
-rw-r--r--src/vnet/adj/adj_mcast.c3
-rw-r--r--src/vnet/adj/adj_nbr.c19
5 files changed, 24 insertions, 15 deletions
diff --git a/src/vnet/adj/adj.h b/src/vnet/adj/adj.h
index cd6e8382ba5..1a841ed2892 100644
--- a/src/vnet/adj/adj.h
+++ b/src/vnet/adj/adj.h
@@ -326,6 +326,10 @@ typedef struct ip_adjacency_t_
*/
struct adj_delegate_t_ *ia_delegates;
+ /**
+ * The VLIB node in which this adj is used to forward packets
+ */
+ u32 ia_node_index;
} ip_adjacency_t;
STATIC_ASSERT ((STRUCT_OFFSET_OF (ip_adjacency_t, cacheline0) == 0),
diff --git a/src/vnet/adj/adj_glean.c b/src/vnet/adj/adj_glean.c
index a8a422d30ba..338d7320d53 100644
--- a/src/vnet/adj/adj_glean.c
+++ b/src/vnet/adj/adj_glean.c
@@ -24,19 +24,19 @@
*/
static adj_index_t *adj_gleans[FIB_PROTOCOL_MAX];
-static inline vlib_node_registration_t*
+static inline u32
adj_get_glean_node (fib_protocol_t proto)
{
switch (proto) {
case FIB_PROTOCOL_IP4:
- return (&ip4_glean_node);
+ return (ip4_glean_node.index);
case FIB_PROTOCOL_IP6:
- return (&ip6_glean_node);
+ return (ip6_glean_node.index);
case FIB_PROTOCOL_MPLS:
break;
}
ASSERT(0);
- return (NULL);
+ return (~0);
}
/*
@@ -63,6 +63,7 @@ adj_glean_add_or_lock (fib_protocol_t proto,
adj->lookup_next_index = IP_LOOKUP_NEXT_GLEAN;
adj->ia_nh_proto = proto;
adj->ia_link = linkt;
+ adj->ia_node_index = adj_get_glean_node(proto);
adj_gleans[proto][sw_if_index] = adj_get_index(adj);
if (NULL != nh_addr)
@@ -111,7 +112,7 @@ adj_glean_update_rewrite (adj_index_t adj_index)
vnet_rewrite_for_sw_interface(vnet_get_main(),
adj_fib_proto_2_nd(adj->ia_nh_proto),
adj->rewrite_header.sw_if_index,
- adj_get_glean_node(adj->ia_nh_proto)->index,
+ adj->ia_node_index,
VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST,
&adj->rewrite_header,
sizeof (adj->rewrite_data));
diff --git a/src/vnet/adj/adj_internal.h b/src/vnet/adj/adj_internal.h
index 2053c69342a..adb7a32375d 100644
--- a/src/vnet/adj/adj_internal.h
+++ b/src/vnet/adj/adj_internal.h
@@ -98,7 +98,7 @@ adj_proto_to_46 (fib_protocol_t proto)
* Get a pointer to an adjacency object from its index
*/
static inline adj_index_t
-adj_get_index (ip_adjacency_t *adj)
+adj_get_index (const ip_adjacency_t *adj)
{
return (adj - adj_pool);
}
diff --git a/src/vnet/adj/adj_mcast.c b/src/vnet/adj/adj_mcast.c
index 4d7172cdb58..590652244e6 100644
--- a/src/vnet/adj/adj_mcast.c
+++ b/src/vnet/adj/adj_mcast.c
@@ -66,11 +66,12 @@ adj_mcast_add_or_lock (fib_protocol_t proto,
adj->lookup_next_index = IP_LOOKUP_NEXT_MCAST;
adj->ia_nh_proto = proto;
adj->ia_link = link_type;
+ adj->ia_node_index = adj_get_mcast_node(proto);
adj_mcasts[proto][sw_if_index] = adj_get_index(adj);
adj_lock(adj_get_index(adj));
vnet_rewrite_init(vnm, sw_if_index, link_type,
- adj_get_mcast_node(proto),
+ adj->ia_node_index,
vnet_tx_node_index_for_sw_interface(vnm, sw_if_index),
&adj->rewrite_header);
diff --git a/src/vnet/adj/adj_nbr.c b/src/vnet/adj/adj_nbr.c
index 28ee53e7d49..f769c56d8ec 100644
--- a/src/vnet/adj/adj_nbr.c
+++ b/src/vnet/adj/adj_nbr.c
@@ -464,6 +464,7 @@ adj_nbr_update_rewrite_internal (ip_adjacency_t *adj,
vlib_worker_thread_barrier_sync(vm);
adj->lookup_next_index = adj_next_index;
+ adj->ia_node_index = this_node;
if (NULL != rewrite)
{
@@ -666,15 +667,17 @@ adj_nbr_walk_nh (u32 sw_if_index,
if (!ADJ_NBR_ITF_OK(adj_nh_proto, sw_if_index))
return;
- vnet_link_t linkt;
- adj_index_t ai;
-
- FOR_EACH_VNET_LINK(linkt)
+ switch (adj_nh_proto)
{
- ai = adj_nbr_find (adj_nh_proto, linkt, nh, sw_if_index);
-
- if (INDEX_INVALID != ai)
- cb(ai, ctx);
+ case FIB_PROTOCOL_IP4:
+ adj_nbr_walk_nh4(sw_if_index, &nh->ip4, cb, ctx);
+ break;
+ case FIB_PROTOCOL_IP6:
+ adj_nbr_walk_nh6(sw_if_index, &nh->ip6, cb, ctx);
+ break;
+ case FIB_PROTOCOL_MPLS:
+ ASSERT(0);
+ break;
}
}