adj->sub_type.glean.receive_addr = *nh_addr;
}
+ adj->rewrite_header.sw_if_index = sw_if_index;
adj->rewrite_header.data_bytes = 0;
+ adj_lock(adj_get_index(adj));
- vnet_rewrite_for_sw_interface(vnet_get_main(),
- adj_fib_proto_2_nd(proto),
- sw_if_index,
- adj_get_glean_node(proto)->index,
- VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST,
- &adj->rewrite_header,
- sizeof (adj->rewrite_data));
+ vnet_update_adjacency_for_sw_interface(vnet_get_main(),
+ sw_if_index,
+ adj_get_index(adj));
}
else
{
adj = adj_get(adj_gleans[proto][sw_if_index]);
+ adj_lock(adj_get_index(adj));
}
- adj_lock(adj_get_index(adj));
-
return (adj_get_index(adj));
}
+/**
+ * adj_glean_update_rewrite
+ */
+void
+adj_glean_update_rewrite (adj_index_t adj_index)
+{
+ ip_adjacency_t *adj;
+
+ ASSERT(ADJ_INDEX_INVALID != adj_index);
+
+ adj = adj_get(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,
+ VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST,
+ &adj->rewrite_header,
+ sizeof (adj->rewrite_data));
+}
+
+adj_index_t
+adj_glean_get (fib_protocol_t proto,
+ u32 sw_if_index)
+{
+ if (sw_if_index < vec_len(adj_gleans[proto]))
+ {
+ return (adj_gleans[proto][sw_if_index]);
+ }
+ return (ADJ_INDEX_INVALID);
+}
+
void
adj_glean_remove (fib_protocol_t proto,
u32 sw_if_index)
vnet_main_t * vnm = vnet_get_main();
ip_adjacency_t * adj = adj_get(index);
- return (format(s, "%U-glean: %U",
- format_fib_protocol, adj->ia_nh_proto,
- format_vnet_sw_interface_name,
- vnm,
- vnet_get_sw_interface(vnm,
- adj->rewrite_header.sw_if_index)));
+ s = format(s, "%U-glean: %U",
+ format_fib_protocol, adj->ia_nh_proto,
+ format_vnet_sw_interface_name,
+ vnm,
+ vnet_get_sw_interface(vnm,
+ adj->rewrite_header.sw_if_index));
+ s = format (s, " %U",
+ format_vnet_rewrite,
+ &adj->rewrite_header, sizeof (adj->rewrite_data), 0);
+
+ return (s);
}
u32 sw_if_index,
const ip46_address_t *nh_addr);
+/**
+ * @brief Get an existing glean
+ *
+ * @return INVALID if it does not exist
+ */
+extern adj_index_t adj_glean_get(fib_protocol_t proto,
+ u32 sw_if_index);
+
+/**
+ * adj_glean_update_rewrite
+ *
+ * Called by an adjacency provider (an interface type) to configure
+ * a glean adj (i.e. and adjacency linked to a connected prefix) to
+ * its default behaviour.
+ * Other interface types (i.e. 6RD tunnels) can can choose not to use
+ * glean behaviour on an adjacency liked to a connected prefix.
+ */
+extern void adj_glean_update_rewrite(adj_index_t adj_index);
+
/**
* @brief Format/display a glean adjacency.
*/
return (0);
}
+static inline ip46_type_t
+adj_proto_to_46 (fib_protocol_t proto)
+{
+ switch (proto)
+ {
+ case FIB_PROTOCOL_IP4:
+ return (IP46_TYPE_IP4);
+ case FIB_PROTOCOL_IP6:
+ return (IP46_TYPE_IP6);
+ default:
+ return (IP46_TYPE_IP4);
+ }
+ return (IP46_TYPE_IP4);
+}
+
/**
* @brief
* Get a pointer to an adjacency object from its index
* one time only update. since we don't support chainging the tunnel
* src,dst, this is all we need.
*/
- ASSERT(adj->lookup_next_index == IP_LOOKUP_NEXT_ARP);
+ ASSERT((adj->lookup_next_index == IP_LOOKUP_NEXT_ARP) ||
+ (adj->lookup_next_index == IP_LOOKUP_NEXT_GLEAN));
+
/*
* tunnels can always provide a rewrite.
*/
ip_adjacency_t * adj = adj_get(index);
s = format (s, "%U", format_vnet_link, adj->ia_link);
- s = format (s, " via %U ",
- format_ip46_address, &adj->sub_type.nbr.next_hop);
+ s = format (s, " via %U",
+ format_ip46_address, &adj->sub_type.nbr.next_hop,
+ adj_proto_to_46(adj->ia_nh_proto));
s = format (s, " %U",
format_vnet_rewrite,
&adj->rewrite_header, sizeof (adj->rewrite_data), indent);
.function = adj_nbr_show,
};
-static ip46_type_t
-adj_proto_to_46 (fib_protocol_t proto)
-{
- switch (proto)
- {
- case FIB_PROTOCOL_IP4:
- return (IP46_TYPE_IP4);
- case FIB_PROTOCOL_IP6:
- return (IP46_TYPE_IP6);
- default:
- return (IP46_TYPE_IP4);
- }
- return (IP46_TYPE_IP4);
-}
-
u8*
format_adj_nbr_incomplete (u8* s, va_list *ap)
{
switch (adj->lookup_next_index)
{
- case IP_LOOKUP_NEXT_ARP:
case IP_LOOKUP_NEXT_GLEAN:
+ adj_glean_update_rewrite (ai);
+ break;
+ case IP_LOOKUP_NEXT_ARP:
if (NULL != e)
{
adj_nbr_walk_nh4 (sw_if_index,
{
ethernet_arp_main_t *am = ðernet_arp_main;
ethernet_arp_ip4_entry_t *e;
+ adj_index_t ai;
/* *INDENT-OFF* */
pool_foreach (e, am->ip4_entry_pool,
change_arp_mac (sw_if_index, e);
}));
/* *INDENT-ON* */
+
+ ai = adj_glean_get (FIB_PROTOCOL_IP4, sw_if_index);
+
+ if (ADJ_INDEX_INVALID != ai)
+ adj_glean_update_rewrite (ai);
}
void
switch (adj->lookup_next_index)
{
- case IP_LOOKUP_NEXT_ARP:
case IP_LOOKUP_NEXT_GLEAN:
+ adj_glean_update_rewrite (ai);
+ break;
+ case IP_LOOKUP_NEXT_ARP:
/*
* default rewirte in neighbour adj
*/
switch (adj->lookup_next_index)
{
- case IP_LOOKUP_NEXT_ARP:
case IP_LOOKUP_NEXT_GLEAN:
+ adj_glean_update_rewrite (ai);
+ break;
+ case IP_LOOKUP_NEXT_ARP:
if (NULL != nbr)
{
adj_nbr_walk_nh6 (sw_if_index, &nbr->key.ip6_address,
{
ip6_neighbor_main_t *nm = &ip6_neighbor_main;
ip6_neighbor_t *n;
+ adj_index_t ai;
/* *INDENT-OFF* */
pool_foreach (n, nm->neighbor_pool,
}
}));
/* *INDENT-ON* */
+
+ ai = adj_glean_get (FIB_PROTOCOL_IP6, sw_if_index);
+
+ if (ADJ_INDEX_INVALID != ai)
+ adj_glean_update_rewrite (ai);
}
void
return s;
}
-u8 *
-format_ip_lookup_next (u8 * s, va_list * args)
-{
- /* int promotion of ip_lookup_next_t */
- ip_lookup_next_t n = va_arg (*args, int);
- char *t = 0;
-
- switch (n)
- {
- default:
- s = format (s, "unknown %d", n);
- return s;
-
- case IP_LOOKUP_NEXT_DROP:
- t = "drop";
- break;
- case IP_LOOKUP_NEXT_PUNT:
- t = "punt";
- break;
- case IP_LOOKUP_NEXT_ARP:
- t = "arp";
- break;
- case IP_LOOKUP_NEXT_MIDCHAIN:
- t = "midchain";
- break;
- case IP_LOOKUP_NEXT_GLEAN:
- t = "glean";
- break;
- case IP_LOOKUP_NEXT_MCAST:
- t = "mcast";
- break;
- case IP_LOOKUP_NEXT_REWRITE:
- break;
- }
-
- if (t)
- vec_add (s, t, strlen (t));
-
- return s;
-}
-
u8 *
format_ip_adjacency_packet_data (u8 * s, va_list * args)
{
self.bier_midpoint(BIERLength.BIER_LEN_128, 16, 128)
def test_bier_midpoint_64(self):
- """BIER midpoint BSL:256"""
+ """BIER midpoint BSL:64"""
self.bier_midpoint(BIERLength.BIER_LEN_64, 8, 64)
def test_bier_head(self):
self.pg2.unconfig_ip4()
self.pg2.set_table_ip4(0)
+ def test_arp_incomplete(self):
+ """ ARP Incomplete"""
+ self.pg1.generate_remote_hosts(3)
+
+ p0 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_hosts[1].ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+ p1 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_hosts[2].ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+
+ #
+ # a packet to an unresolved destination generates an ARP request
+ #
+ rx = self.send_and_expect(self.pg0, [p0], self.pg1)
+ self.verify_arp_req(rx[0],
+ self.pg1.local_mac,
+ self.pg1.local_ip4,
+ self.pg1._remote_hosts[1].ip4)
+
+ #
+ # add a neighbour for remote host 1
+ #
+ static_arp = VppNeighbor(self,
+ self.pg1.sw_if_index,
+ self.pg1.remote_hosts[1].mac,
+ self.pg1.remote_hosts[1].ip4,
+ is_static=1)
+ static_arp.add_vpp_config()
+
+ #
+ # change the interface's MAC
+ #
+ mac = [chr(0x00), chr(0x00), chr(0x00),
+ chr(0x33), chr(0x33), chr(0x33)]
+ mac_string = ''.join(mac)
+
+ self.vapi.sw_interface_set_mac_address(self.pg1.sw_if_index,
+ mac_string)
+
+ #
+ # now ARP requests come from the new source mac
+ #
+ rx = self.send_and_expect(self.pg0, [p1], self.pg1)
+ self.verify_arp_req(rx[0],
+ "00:00:00:33:33:33",
+ self.pg1.local_ip4,
+ self.pg1._remote_hosts[2].ip4)
+
+ #
+ # packets to the resolved host also have the new source mac
+ #
+ rx = self.send_and_expect(self.pg0, [p0], self.pg1)
+ self.verify_ip(rx[0],
+ "00:00:00:33:33:33",
+ self.pg1.remote_hosts[1].mac,
+ self.pg0.remote_ip4,
+ self.pg1.remote_hosts[1].ip4)
+
+ #
+ # set the mac address on the inteface that does not have a
+ # configured subnet and thus no glean
+ #
+ self.vapi.sw_interface_set_mac_address(self.pg2.sw_if_index,
+ mac_string)
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
{'sw_if_index': sw_if_index,
'mtu': mtu})
+ def sw_interface_set_mac_address(self, sw_if_index, mac):
+ return self.api(self.papi.sw_interface_set_mac_address,
+ {'sw_if_index': sw_if_index,
+ 'mac_address': mac})
+
def create_subif(self, sw_if_index, sub_id, outer_vlan, inner_vlan,
no_tags=0, one_tag=0, two_tags=0, dot1ad=0, exact_match=0,
default_sub=0, outer_vlan_id_any=0, inner_vlan_id_any=0):