diff options
author | 2020-01-03 15:05:46 +0200 | |
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committer | 2020-08-12 15:59:46 +0000 | |
commit | 06c104f4e3cba6a826603188662083a0efea54a8 (patch) | |
tree | 142f056161c6c8ea075cf0aec8e4577374463498 /src/plugins/srv6-am/test | |
parent | 5c3aab42120cdeaf5513a8344d0af0630342b1bb (diff) |
sr: fix possible null-pointer dereference
Steps to reproduce VPP crash:
1. configure localsid End behavior
2. ping the localsid address
Type: fix
Signed-off-by: Ignas Bacius <ignas@noia.network>
Change-Id: Id780e0875ec9cdb25252217990919fb3dddbf06a
(cherry picked from commit bd5c49a1615e36260a86184d087b5b47a5e747be)
Diffstat (limited to 'src/plugins/srv6-am/test')
-rw-r--r-- | src/plugins/srv6-am/test/test_srv6.py | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/src/plugins/srv6-am/test/test_srv6.py b/src/plugins/srv6-am/test/test_srv6.py index b3e69724028..311366b65c1 100644 --- a/src/plugins/srv6-am/test/test_srv6.py +++ b/src/plugins/srv6-am/test/test_srv6.py @@ -548,9 +548,18 @@ class TestSRv6(VppTestCase): # TODO: test behavior with SL=0 packet (needs 2*SRH?) + expected_count = len(pkts) + + # packets without SRH (should not crash) + packet_header = self.create_packet_header_IPv6('a3::') + # create traffic stream pg0->pg1 + pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, + self.pg_packet_sizes, count)) + # send packets and verify received packets self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_End) + self.compare_rx_tx_packet_End, + expected_count=expected_count) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -1825,13 +1834,16 @@ class TestSRv6(VppTestCase): self.logger.info("Done creating packets") return pkts - def send_and_verify_pkts(self, input, pkts, output, compare_func): + def send_and_verify_pkts(self, input, pkts, output, compare_func, + expected_count=None): """Send packets and verify received packets using compare_func :param input: ingress interface of DUT :param pkts: list of packets to transmit :param output: egress interface of DUT :param compare_func: function to compare in and out packets + :param expected_count: expected number of captured packets (if + different than len(pkts)) """ # add traffic stream to input interface input.add_stream(pkts) @@ -1845,7 +1857,7 @@ class TestSRv6(VppTestCase): # get output capture self.logger.info("Getting packet capture") - capture = output.get_capture() + capture = output.get_capture(expected_count=expected_count) # assert nothing was captured on input interface input.assert_nothing_captured() @@ -2128,13 +2140,18 @@ class TestSRv6(VppTestCase): self.logger.error(ppp("Unexpected or invalid packet:", packet)) raise + # FIXME: there is no need to check manually that all the packets + # arrived (already done so by get_capture); checking here + # prevents testing packets that are expected to be dropped, so + # commenting this out for now + # have all expected packets arrived? - for i in self.pg_interfaces: - remaining_packet = self.get_next_packet_info_for_interface2( - i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index]) - self.assertTrue(remaining_packet is None, - "Interface %s: Packet expected from interface %s " - "didn't arrive" % (dst_if.name, i.name)) + # for i in self.pg_interfaces: + # remaining_packet = self.get_next_packet_info_for_interface2( + # i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index]) + # self.assertTrue(remaining_packet is None, + # "Interface %s: Packet expected from interface %s " + # "didn't arrive" % (dst_if.name, i.name)) if __name__ == '__main__': |