path: root/src/vppinfra/memcheck.h

/*
   ----------------------------------------------------------------

   Notice that the following BSD-style license applies to this one
   file (memcheck.h) only.  The rest of Valgrind is licensed under the
   terms of the GNU General Public License, version 2, unless
   otherwise indicated.  See the COPYING file in the source
   distribution for details.

   ----------------------------------------------------------------

   This file is part of MemCheck, a heavyweight Valgrind tool for
   detecting memory errors.

   Copyright (C) 2000-2009 Julian Seward.  All rights reserved.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions
   are met:

   1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.

   2. The origin of this software must not be misrepresented; you must
      not claim that you wrote the original software.  If you use this
      software in a product, an acknowledgment in the product
      documentation would be appreciated but is not required.

   3. Altered source versions must be plainly marked as such, and must
      not be misrepresented as being the original software.

   4. The name of the author may not be used to endorse or promote
      products derived from this software without specific prior written
      permission.

   THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
   OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISE
}
#!/usr/bin/env python
""" ACL plugin extended stateful tests """

import unittest
from framework import VppTestCase, VppTestRunner, running_extended_tests
from scapy.layers.l2 import Ether
from scapy.packet import Raw
from scapy.layers.inet import IP, UDP, TCP
from scapy.packet import Packet
from socket import inet_pton, AF_INET, AF_INET6
from scapy.layers.inet6 import IPv6, ICMPv6Unknown, ICMPv6EchoRequest
from scapy.layers.inet6 import ICMPv6EchoReply, IPv6ExtHdrRouting
from scapy.layers.inet6 import IPv6ExtHdrFragment
from pprint import pprint
from random import randint
from util import L4_Conn


def to_acl_rule(self, is_permit, wildcard_sport=False):
    p = self
    rule_family = AF_INET6 if p.haslayer(IPv6) else AF_INET
    rule_prefix_len = 128 if p.haslayer(IPv6) else 32
    rule_l3_layer = IPv6 if p.haslayer(IPv6) else IP
    rule_l4_sport = p.sport
    rule_l4_dport = p.dport
    if p.haslayer(IPv6):
        rule_l4_proto = p[IPv6].nh
    else:
        rule_l4_proto = p[IP].proto

    if wildcard_sport:
        rule_l4_sport_first = 0
        rule_l4_sport_last = 65535
    else:
        rule_l4_sport_first = rule_l4_sport
        rule_l4_sport_last = rule_l4_sport

    new_rule = {
          'is_permit': is_permit,
          'is_ipv6': p.haslayer(IPv6),
          'src_ip_addr': inet_pton(rule_family,
                                   p[rule_l3_layer].src),
          'src_ip_prefix_len': rule_prefix_len,
          'dst_ip_addr': inet_pton(rule_family,
                                   p[rule_l3_layer].dst),
          'dst_ip_prefix_len': rule_prefix_len,
          'srcport_or_icmptype_first': rule_l4_sport_first,
          'srcport_or_icmptype_last': rule_l4_sport_last,
          'dstport_or_icmpcode_first': rule_l4_dport,
          'dstport_or_icmpcode_last': rule_l4_dport,
          'proto': rule_l4_proto,
         }
    return new_rule

Packet.to_acl_rule = to_acl_rule


class IterateWithSleep():
    def __init__(self, testcase, n_iters, description, sleep_sec):
        self.curr = 0
        self.testcase = testcase
        self.n_iters = n_iters
        self.sleep_sec = sleep_sec
        self.description = description

    def __iter__(self):
        for x in range(0, self.n_iters):
            yield x
            self.testcase.sleep(self.sleep_sec)


class Conn(L4_Conn):
    def apply_acls(self, reflect_side, acl_side):
        pkts = []
        pkts.append(self.pkt(0))
        pkts.append(self.pkt(1))
        pkt = pkts[reflect_side]

        r = []
        r.append(pkt.to_acl_rule(2, wildcard_sport=True))
        r.append(self.wildcard_rule(0))
        res = self.testcase.vapi.acl_add_replace(0xffffffff, r)
        self.testcase.assert_equal(res.retval, 0, "error adding ACL")
        reflect_acl_index = res.acl_index

        r = []
        r.append(self.wildcard_rule(0))
        res = self.testcase.vapi.acl_add_replace(0xffffffff, r)
        self.testcase.assert_equal(res.retval, 0, "error adding deny ACL")
        deny_acl_index = res.acl_index

        if reflect_side == acl_side:
            self.testcase.vapi.acl_interface_set_acl_list(
                   self.ifs[acl_side].sw_if_index, 1,
                   [reflect_acl_index,
                    deny_acl_index])
            self.testcase.vapi.acl_interface_set_acl_list(
                   self.ifs[1-acl_side].sw_if_index, 0, [])
        else:
            self.testcase.vapi.acl_interface_set_acl_list(
                   self.ifs[acl_side].sw_if_index, 1,
                   [deny_acl_index,
                    reflect_acl_index])
            self.testcase.vapi.acl_interface_set_acl_list(
                   self.ifs[1-acl_side].sw_if_index, 0, [])

    def wildcard_rule(self, is_permit):
        any_addr = ["0.0.0.0", "::"]
        rule_family = self.address_family
        is_ip6 = 1 if rule_family == AF_INET6 else 0
        new_rule = {
              'is_permit': is_permit,
              'is_ipv6': is_ip6,
              'src_ip_addr': inet_pton(rule_family, any_addr[is_ip6]),
              'src_ip_prefix_len': 0,
              'dst_ip_addr': inet_pton(rule_family, any_addr[is_ip6]),
              'dst_ip_prefix_len': 0,
              'srcport_or_icmptype_first': 0,
              'srcport_or_icmptype_last': 65535,
              'dstport_or_icmpcode_first': 0