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authorNeale Ranns <nranns@cisco.com>2017-02-18 08:16:41 -0800
committerDamjan Marion <dmarion.lists@gmail.com>2017-03-03 17:23:50 +0000
commit87df12d5de67600414ae80b891e8a0f89e89ce5c (patch)
tree40a28e6bd9daec0c13f09dd4b8e97b4f2bebef38 /test
parent4008ac998f43265451281cb6e759cd6184e50bed (diff)
IPv6 RA improvements
1) tests for RA options 2) memleaks deleteing a ip6_radv_info_t 3) MLD prefix code refactoring Change-Id: I34db103994bd8fbdbbec50b202d72770dd145681 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'test')
-rw-r--r--test/test_ip6.py219
-rw-r--r--test/vpp_interface.py11
-rw-r--r--test/vpp_neighbor.py2
-rw-r--r--test/vpp_papi_provider.py25
4 files changed, 251 insertions, 6 deletions
diff --git a/test/test_ip6.py b/test/test_ip6.py
index fb5383cfc0c..b8278329ba9 100644
--- a/test/test_ip6.py
+++ b/test/test_ip6.py
@@ -10,7 +10,8 @@ from vpp_pg_interface import is_ipv6_misc
from scapy.packet import Raw
from scapy.layers.l2 import Ether, Dot1Q
from scapy.layers.inet6 import IPv6, UDP, ICMPv6ND_NS, ICMPv6ND_RS, \
- ICMPv6ND_RA, ICMPv6NDOptSrcLLAddr, getmacbyip6, ICMPv6MRD_Solicitation
+ ICMPv6ND_RA, ICMPv6NDOptSrcLLAddr, getmacbyip6, ICMPv6MRD_Solicitation, \
+ ICMPv6NDOptMTU, ICMPv6NDOptSrcLLAddr, ICMPv6NDOptPrefixInfo
from util import ppp
from scapy.utils6 import in6_getnsma, in6_getnsmac, in6_ptop, in6_islladdr, \
in6_mactoifaceid, in6_ismaddr
@@ -288,7 +289,7 @@ class TestIPv6(VppTestCase):
self.send_and_assert_no_replies(self.pg0, pkts,
"No response to NS for unknown target")
- def validate_ra(self, intf, rx, dst_ip=None):
+ def validate_ra(self, intf, rx, dst_ip=None, mtu=9000, pi_opt=None):
if not dst_ip:
dst_ip = intf.remote_ip6
@@ -308,17 +309,47 @@ class TestIPv6(VppTestCase):
self.assertEqual(in6_ptop(rx[IPv6].src),
in6_ptop(mk_ll_addr(intf.local_mac)))
+ # it should contain the links MTU
+ ra = rx[ICMPv6ND_RA]
+ self.assertEqual(ra[ICMPv6NDOptMTU].mtu, mtu)
+
+ # it should contain the source's link layer address option
+ sll = ra[ICMPv6NDOptSrcLLAddr]
+ self.assertEqual(sll.lladdr, intf.local_mac)
+
+ if not pi_opt:
+ # the RA should not contain prefix information
+ self.assertFalse(ra.haslayer(ICMPv6NDOptPrefixInfo))
+ else:
+ raos = rx.getlayer(ICMPv6NDOptPrefixInfo, 1)
+
+ # the options are nested in the scapy packet in way that i cannot
+ # decipher how to decode. this 1st layer of option always returns
+ # nested classes, so a direct obj1=obj2 comparison always fails.
+ # however, the getlayer(.., 2) does give one instnace.
+ # so we cheat here and construct a new opt instnace for comparison
+ rd = ICMPv6NDOptPrefixInfo(prefixlen=raos.prefixlen,
+ prefix=raos.prefix,
+ L=raos.L,
+ A=raos.A)
+ if type(pi_opt) is list:
+ for ii in range(len(pi_opt)):
+ self.assertEqual(pi_opt[ii], rd)
+ rd = rx.getlayer(ICMPv6NDOptPrefixInfo, ii+2)
+ else:
+ self.assertEqual(pi_opt, raos)
+
def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
- filter_out_fn=is_ipv6_misc):
+ filter_out_fn=is_ipv6_misc,
+ opt=None):
intf.add_stream(pkts)
- self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
self.assertEqual(len(rx), 1)
rx = rx[0]
- self.validate_ra(intf, rx, dst_ip)
+ self.validate_ra(intf, rx, dst_ip, pi_opt=opt)
def test_rs(self):
""" IPv6 Router Solicitation Exceptions
@@ -416,6 +447,184 @@ class TestIPv6(VppTestCase):
filter_out_fn=None)
#
+ # Configure The RA to announce the links prefix
+ #
+ self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
+ self.pg0.local_ip6_prefix_len)
+
+ #
+ # RAs should now contain the prefix information option
+ #
+ opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=1,
+ A=1)
+
+ self.pg0.ip6_ra_config(send_unicast=1)
+ ll = mk_ll_addr(self.pg0.remote_mac)
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IPv6(dst=self.pg0.local_ip6, src=ll) /
+ ICMPv6ND_RS())
+ self.send_and_expect_ra(self.pg0, p,
+ "RA with prefix-info",
+ dst_ip=ll,
+ opt=opt)
+
+ #
+ # Change the prefix info to not off-link
+ # L-flag is clear
+ #
+ self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
+ self.pg0.local_ip6_prefix_len,
+ off_link=1)
+
+ opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=0,
+ A=1)
+
+ self.pg0.ip6_ra_config(send_unicast=1)
+ self.send_and_expect_ra(self.pg0, p,
+ "RA with Prefix info with L-flag=0",
+ dst_ip=ll,
+ opt=opt)
+
+ #
+ # Change the prefix info to not off-link, no-autoconfig
+ # L and A flag are clear in the advert
+ #
+ self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
+ self.pg0.local_ip6_prefix_len,
+ off_link=1,
+ no_autoconfig=1)
+
+ opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=0,
+ A=0)
+
+ self.pg0.ip6_ra_config(send_unicast=1)
+ self.send_and_expect_ra(self.pg0, p,
+ "RA with Prefix info with A & L-flag=0",
+ dst_ip=ll,
+ opt=opt)
+
+ #
+ # Change the flag settings back to the defaults
+ # L and A flag are set in the advert
+ #
+ self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
+ self.pg0.local_ip6_prefix_len)
+
+ opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=1,
+ A=1)
+
+ self.pg0.ip6_ra_config(send_unicast=1)
+ self.send_and_expect_ra(self.pg0, p,
+ "RA with Prefix info",
+ dst_ip=ll,
+ opt=opt)
+
+ #
+ # Change the prefix info to not off-link, no-autoconfig
+ # L and A flag are clear in the advert
+ #
+ self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
+ self.pg0.local_ip6_prefix_len,
+ off_link=1,
+ no_autoconfig=1)
+
+ opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=0,
+ A=0)
+
+ self.pg0.ip6_ra_config(send_unicast=1)
+ self.send_and_expect_ra(self.pg0, p,
+ "RA with Prefix info with A & L-flag=0",
+ dst_ip=ll,
+ opt=opt)
+
+ #
+ # Use the reset to defults option to revert to defaults
+ # L and A flag are clear in the advert
+ #
+ self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
+ self.pg0.local_ip6_prefix_len,
+ use_default=1)
+
+ opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=1,
+ A=1)
+
+ self.pg0.ip6_ra_config(send_unicast=1)
+ self.send_and_expect_ra(self.pg0, p,
+ "RA with Prefix reverted to defaults",
+ dst_ip=ll,
+ opt=opt)
+
+ #
+ # Advertise Another prefix. With no L-flag/A-flag
+ #
+ self.pg0.ip6_ra_prefix(self.pg1.local_ip6n,
+ self.pg1.local_ip6_prefix_len,
+ off_link=1,
+ no_autoconfig=1)
+
+ opt = [ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=1,
+ A=1),
+ ICMPv6NDOptPrefixInfo(prefixlen=self.pg1.local_ip6_prefix_len,
+ prefix=self.pg1.local_ip6,
+ L=0,
+ A=0)]
+
+ self.pg0.ip6_ra_config(send_unicast=1)
+ ll = mk_ll_addr(self.pg0.remote_mac)
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IPv6(dst=self.pg0.local_ip6, src=ll) /
+ ICMPv6ND_RS())
+ self.send_and_expect_ra(self.pg0, p,
+ "RA with multiple Prefix infos",
+ dst_ip=ll,
+ opt=opt)
+
+ #
+ # Remove the first refix-info - expect the second is still in the
+ # advert
+ #
+ self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
+ self.pg0.local_ip6_prefix_len,
+ is_no=1)
+
+ opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg1.local_ip6_prefix_len,
+ prefix=self.pg1.local_ip6,
+ L=0,
+ A=0)
+
+ self.pg0.ip6_ra_config(send_unicast=1)
+ self.send_and_expect_ra(self.pg0, p,
+ "RA with Prefix reverted to defaults",
+ dst_ip=ll,
+ opt=opt)
+
+ #
+ # Remove the second prefix-info - expect no prefix-info i nthe adverts
+ #
+ self.pg0.ip6_ra_prefix(self.pg1.local_ip6n,
+ self.pg1.local_ip6_prefix_len,
+ is_no=1)
+
+ self.pg0.ip6_ra_config(send_unicast=1)
+ self.send_and_expect_ra(self.pg0, p,
+ "RA with Prefix reverted to defaults",
+ dst_ip=ll)
+
+ #
# Reset the periodic advertisements back to default values
#
self.pg0.ip6_ra_config(no=1, suppress=1, send_unicast=0)
diff --git a/test/vpp_interface.py b/test/vpp_interface.py
index 4588943dd8a..53a0ae8de98 100644
--- a/test/vpp_interface.py
+++ b/test/vpp_interface.py
@@ -272,6 +272,17 @@ class VppInterface(object):
suppress,
send_unicast)
+ def ip6_ra_prefix(self, address, address_length, is_no=0,
+ off_link=0, no_autoconfig=0, use_default=0):
+ """Configure IPv6 RA suppress on the VPP interface."""
+ self.test.vapi.ip6_sw_interface_ra_prefix(self.sw_if_index,
+ address,
+ address_length,
+ is_no=is_no,
+ off_link=off_link,
+ no_autoconfig=no_autoconfig,
+ use_default=use_default)
+
def admin_up(self):
"""Put interface ADMIN-UP."""
self.test.vapi.sw_interface_set_flags(self.sw_if_index,
diff --git a/test/vpp_neighbor.py b/test/vpp_neighbor.py
index fbd41eb5352..5c2e34794ec 100644
--- a/test/vpp_neighbor.py
+++ b/test/vpp_neighbor.py
@@ -31,7 +31,7 @@ class VppNeighbor(VppObject):
"""
def __init__(self, test, sw_if_index, mac_addr, nbr_addr,
- af=AF_INET, is_static=0):
+ af=AF_INET, is_static=False):
self._test = test
self.sw_if_index = sw_if_index
self.mac_addr = mactobinary(mac_addr)
diff --git a/test/vpp_papi_provider.py b/test/vpp_papi_provider.py
index 5d4d6b7ef0c..fe152de3969 100644
--- a/test/vpp_papi_provider.py
+++ b/test/vpp_papi_provider.py
@@ -286,6 +286,31 @@ class VppPapiProvider(object):
'suppress': suppress,
'send_unicast': send_unicast})
+ def ip6_sw_interface_ra_prefix(self,
+ sw_if_index,
+ address,
+ address_length,
+ use_default=0,
+ no_advertise=0,
+ off_link=0,
+ no_autoconfig=0,
+ no_onlink=0,
+ is_no=0,
+ val_lifetime=0xffffffff,
+ pref_lifetime=0xffffffff):
+ return self.api(self.papi.sw_interface_ip6nd_ra_prefix,
+ {'sw_if_index': sw_if_index,
+ 'address': address,
+ 'address_length': address_length,
+ 'use_default': use_default,
+ 'no_advertise': no_advertise,
+ 'off_link': off_link,
+ 'no_autoconfig': no_autoconfig,
+ 'no_onlink': no_onlink,
+ 'is_no': is_no,
+ 'val_lifetime': val_lifetime,
+ 'pref_lifetime': pref_lifetime})
+
def ip6_sw_interface_enable_disable(self, sw_if_index, enable):
"""
Enable/Disable An interface for IPv6