Commit 1644a516 authored by Tomek Mrugalski's avatar Tomek Mrugalski 🛰

[3184] First wireshark capture added to DHCPv4 unit-tests

parent 708a8dd0
......@@ -78,6 +78,7 @@ dhcp4_unittests_SOURCES += ../config_parser.cc ../config_parser.h
dhcp4_unittests_SOURCES += dhcp4_unittests.cc
dhcp4_unittests_SOURCES += dhcp4_srv_unittest.cc
dhcp4_unittests_SOURCES += dhcp4_test_utils.h
dhcp4_unittests_SOURCES += wireshark.cc
dhcp4_unittests_SOURCES += ctrl_dhcp4_srv_unittest.cc
dhcp4_unittests_SOURCES += config_parser_unittest.cc
dhcp4_unittests_SOURCES += marker_file.cc
......
......@@ -129,6 +129,10 @@ public:
/// @param expected_clientid expected value of client-id
void checkClientId(const Pkt4Ptr& rsp, const OptionPtr& expected_clientid);
void captureSetDefaultFields(const Pkt4Ptr& pkt);
Pkt4Ptr captureRelayedDiscover();
/// @brief Tests if Discover or Request message is processed correctly
///
/// @param msg_type DHCPDISCOVER or DHCPREQUEST
......
// Copyright (C) 2013 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
#include <config.h>
#include <dhcp4/tests/dhcp4_test_utils.h>
#include <string>
#include <asiolink/io_address.h>
#include <util/encode/hex.h>
/// @file wireshark.cc
///
/// @brief contains packet captures imported from Wireshark
///
/// These are actual packets captured over wire. They are used in various
/// tests.
///
/// The procedure to export Wireshark -> unit-tests is manual, but rather
/// easy to follow:
/// 1. Open a file in wireshark
/// 2. Find the packet you want to export
/// 3. There's a protocol stack (Frame, Ethernet, IPv6, UDP, DHCPv6, ...)
/// 4. Right click on DHCPv6 -> Copy -> Bytes -> Hex Stream
/// 5. Paste it as: string hex_string="[paste here]";
/// 6. Coding guidelines line restrictions apply, so wrap your code as necessary
/// 7. Make sure you decribe the capture appropriately
/// 8. Follow whatever rest of the methods are doing (set ports, ifaces etc.)
using namespace std;
using namespace isc::asiolink;
namespace isc {
namespace dhcp {
namespace test {
void Dhcpv4SrvTest::captureSetDefaultFields(const Pkt4Ptr& pkt) {
pkt->setRemotePort(546);
pkt->setRemoteAddr(IOAddress("fe80::1"));
pkt->setLocalPort(0);
pkt->setLocalAddr(IOAddress("ff02::1:2"));
pkt->setIndex(2);
pkt->setIface("eth0");
}
Pkt4Ptr Dhcpv4SrvTest::captureRelayedDiscover() {
/* string exported from Wireshark:
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootps (67)
Source port: bootps (67)
Destination port: bootps (67)
Length: 541
Checksum: 0x2181 [validation disabled]
Bootstrap Protocol
Message type: Boot Request (1)
Hardware type: Ethernet
Hardware address length: 6
Hops: 1
Transaction ID: 0x5d05478d
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 0.0.0.0 (0.0.0.0)
Relay agent IP address: 10.254.226.1 (10.254.226.1)
Client MAC address: Netgear_b8:15:14 (20:e5:2a:b8:15:14)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type
Option: (55) Parameter Request List
Option: (60) Vendor class identifier
Option: (125) V-I Vendor-specific Information
Option: (43) Vendor-Specific Information (CableLabs)
Option: (61) Client identifier
Option: (57) Maximum DHCP Message Size
Option: (82) Agent Information Option
Option: (255) End */
string hex_string =
"010106015d05478d000000000000000000000000000000000afee20120e52ab8151400"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000638253633501013707"
"0102030407067d3c0a646f63736973332e303a7d7f0000118b7a010102057501010102"
"010303010104010105010106010107010f0801100901030a01010b01180c01010d0200"
"400e0200100f010110040000000211010014010015013f160101170101180104190104"
"1a01041b01201c01021d01081e01201f01102001102101022201012301002401002501"
"01260200ff2701012b59020345434d030b45434d3a45524f55544552040d3242523232"
"39553430303434430504312e3034060856312e33332e30330707322e332e3052320806"
"30303039354209094347333030304443520a074e657467656172fe01083d0fff2ab815"
"140003000120e52ab81514390205dc5219010420000002020620e52ab8151409090000"
"118b0401020300ff";
std::vector<uint8_t> bin;
// Decode the hex string and store it in bin (which happens
// to be OptionBuffer format)
isc::util::encode::decodeHex(hex_string, bin);
Pkt4Ptr pkt(new Pkt4(&bin[0], bin.size()));
captureSetDefaultFields(pkt);
return (pkt);
}
}; // end of isc::dhcp::test namespace
}; // end of isc::dhcp namespace
}; // end of isc namespace
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