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fib: fix dpo-receive address in ip6-ll fibs

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Need to fill frp_addr for local path, it's used by dpo-receive.
If not, address output can be invalid:

$ sudo vppctl sh ip6-ll fe80::dcad:ff:fe00:3/128
IP6-link-local:loop3, fib_index:2, locks:[IPv6-nd:1, ]
fe80::dcad:ff:fe00:3/128 fib:2 index:55 locks:2
  IPv6-nd refs:1 entry-flags:connected,import,local, src-flags:added,contributing,active,
    path-list:[72] locks:2 flags:shared,local, uPRF-list:58 len:0 itfs:[]
      path:[82] pl-index:72 ip6 weight=1 pref=0 receive:  oper-flags:resolved, cfg-flags:local,glean,
        [@0]: dpo-receive: 8000💯fe80::dcad:ff on loop3

 forwarding:   unicast-ip6-chain
  [@0]: dpo-load-balance: [proto:ip6 index:57 buckets:1 uRPF:58 to:[0:0]]
    [0] [@2]: dpo-receive: 8000💯fe80::dcad:ff on loop3

Type: fix
Change-Id: Ib9874c5eac74af789e721098d512a1058cb8e404
Signed-off-by: Vladislav Grishenko <themiron@yandex-team.ru>
This commit is contained in:
Vladislav Grishenko
2022-05-16 01:44:43 +05:00
committed by Neale Ranns
parent 5c801b362a
commit 1fb62c0bcc
2 changed files with 9 additions and 2 deletions
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7
src/vnet/ip/ip6_ll_table.c
View File

@ -111,8 +111,13 @@ ip6_ll_table_entry_update (const ip6_ll_prefix_t * ilp,
.frp_flags = flags,
.frp_sw_if_index = ilp->ilp_sw_if_index,
.frp_proto = DPO_PROTO_IP6,
.frp_fib_index = ~0,
.frp_weight = 1,
};
fib_prefix_t fp;
fib_prefix_t fp = { 0 };
if (flags & FIB_ROUTE_PATH_LOCAL)
rpath.frp_addr.ip6 = ilp->ilp_addr;
vec_validate_init_empty (ip6_ll_table.ilt_fibs, ilp->ilp_sw_if_index, ~0);

4
test/test_ip6.py
View File

@ -274,7 +274,7 @@ class TestIPv6(TestIPv6ND):
def tearDown(self):
"""Run standard test teardown and log ``show ip6 neighbors``."""
for i in self.interfaces:
for i in reversed(self.interfaces):
i.unconfig_ip6()
i.admin_down()
for i in self.sub_interfaces:
@ -1100,6 +1100,8 @@ class TestIPv6(TestIPv6ND):
self.pg_start()
subitf = VppDot1QSubint(self, self.pg1, 99)
self.interfaces.append(subitf)
self.sub_interfaces.append(subitf)
subitf.admin_up()
subitf.config_ip6()