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test-aa.c
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/*
* Copyright (c) 2015 Avaya, Inc.
*
* 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 THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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>
#undef NDEBUG
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ovs-lldp.h"
#include "ovstest.h"
#define ETH_TYPE_LLDP 0x88cc
/* Dummy MAC addresses */
static const struct eth_addr chassis_mac = { { { 0x5e, 0x10, 0x8e, 0xe7, 0x84, 0xad } } };
static const struct eth_addr eth_src = { { { 0x5e, 0x10, 0x8e, 0xe7, 0x84, 0xad } } };
/* LLDP multicast address */
static const struct eth_addr eth_addr_lldp = { { { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x0e } } };
/* Count of tests run */
static int num_tests = 0;
/*
* Helper function to validate port info
*/
static void
check_received_port(struct lldpd_port *sport,
struct lldpd_port *rport)
{
assert(rport->p_id_subtype == sport->p_id_subtype);
assert(rport->p_id_len == sport->p_id_len);
assert(strncmp(rport->p_id, sport->p_id, sport->p_id_len) == 0);
assert(strcmp(rport->p_descr, sport->p_descr) == 0);
return;
}
/*
* Helper function to validate chassis info
*/
static void
check_received_chassis(struct lldpd_chassis *schassis,
struct lldpd_chassis *rchassis)
{
assert(rchassis->c_id_subtype == schassis->c_id_subtype);
assert(rchassis->c_id_len == schassis->c_id_len);
assert(memcmp(rchassis->c_id, schassis->c_id, schassis->c_id_len) == 0);
assert(strcmp(rchassis->c_name, schassis->c_name) == 0);
assert(strcmp(rchassis->c_descr, schassis->c_descr) == 0);
assert(rchassis->c_cap_available == schassis->c_cap_available);
assert(rchassis->c_cap_enabled == schassis->c_cap_enabled);
return;
}
/*
* Helper function to validate auto-attach info
*/
static void
check_received_aa(struct lldpd_port *sport,
struct lldpd_port *rport,
struct lldpd_aa_isid_vlan_maps_tlv *smap)
{
struct lldpd_aa_isid_vlan_maps_tlv *received_map;
int i = 0;
assert(rport->p_element.type == sport->p_element.type);
assert(rport->p_element.mgmt_vlan == sport->p_element.mgmt_vlan);
assert(eth_addr_equals(rport->p_element.system_id.system_mac,
sport->p_element.system_id.system_mac));
assert(rport->p_element.system_id.conn_type ==
sport->p_element.system_id.conn_type);
assert(rport->p_element.system_id.rsvd ==
sport->p_element.system_id.rsvd);
assert(rport->p_element.system_id.rsvd2[0] ==
sport->p_element.system_id.rsvd2[0]);
assert(rport->p_element.system_id.rsvd2[1] ==
sport->p_element.system_id.rsvd2[1]);
/* Should receive 2 mappings */
assert(!ovs_list_is_empty(&rport->p_isid_vlan_maps));
/* For each received isid/vlan mapping */
LIST_FOR_EACH (received_map, m_entries, &rport->p_isid_vlan_maps) {
/* Validate against mapping sent */
assert(smap[i].isid_vlan_data.status ==
received_map->isid_vlan_data.status);
assert(smap[i].isid_vlan_data.vlan ==
received_map->isid_vlan_data.vlan);
assert(smap[i].isid_vlan_data.isid ==
received_map->isid_vlan_data.isid);
/* Next mapping sent */
i++;
}
assert(i == 2);
return;
}
/*
* Validate basic send/receive processing
*/
static int
test_aa_send(void)
{
struct lldp *lldp;
struct lldpd_hardware hardware;
struct lldpd_chassis chassis;
struct lldpd_chassis *nchassis = NULL;
struct lldpd_port *nport = NULL;
struct lldpd_hardware *hw = NULL;
struct lldpd_chassis *ch = NULL;
struct lldpd_aa_isid_vlan_maps_tlv map_init[2];
struct lldpd_aa_isid_vlan_maps_tlv map[2];
uint32_t stub[512 / 4];
struct dp_packet packet;
int n;
/* Prepare data used to construct and validate LLDPPDU */
hardware.h_lport.p_id_subtype = LLDP_PORTID_SUBTYPE_IFNAME;
hardware.h_lport.p_id = "FastEthernet 1/5";
hardware.h_lport.p_id_len = strlen(hardware.h_lport.p_id);
hardware.h_lport.p_descr = "Fake port description";
hardware.h_lport.p_mfs = 1516;
/* Auto attach element discovery info */
hardware.h_lport.p_element.type =
LLDP_TLV_AA_ELEM_TYPE_CLIENT_VIRTUAL_SWITCH;
hardware.h_lport.p_element.mgmt_vlan = 0xCDC;
eth_addr_from_uint64(0x010203040506ULL,
&hardware.h_lport.p_element.system_id.system_mac);
hardware.h_lport.p_element.system_id.conn_type = 0x5;
hardware.h_lport.p_element.system_id.rsvd = 0x3CC;
hardware.h_lport.p_element.system_id.rsvd2[0] = 0xB;
hardware.h_lport.p_element.system_id.rsvd2[1] = 0xE;
/* Local chassis info */
chassis.c_id_subtype = LLDP_CHASSISID_SUBTYPE_LLADDR;
chassis.c_id = CONST_CAST(uint8_t *, chassis_mac.ea);
chassis.c_id_len = ETH_ADDR_LEN;
chassis.c_name = "Dummy chassis";
chassis.c_descr = "Long dummy chassis description";
chassis.c_cap_available = LLDP_CAP_BRIDGE;
chassis.c_cap_enabled = LLDP_CAP_BRIDGE;
/* ISID/VLAN mappings */
map_init[0].isid_vlan_data.status = 0xC;
map_init[0].isid_vlan_data.vlan = 0x64;
map_init[0].isid_vlan_data.isid = 0x010203;
map_init[1].isid_vlan_data.status = 0xD;
map_init[1].isid_vlan_data.vlan = 0xF;
map_init[1].isid_vlan_data.isid = 0x040506;
/* Prepare an empty packet buffer */
dp_packet_use_stub(&packet, stub, sizeof stub);
dp_packet_clear(&packet);
/* Create a dummy lldp instance */
lldp = lldp_create_dummy();
if ((lldp == NULL) ||
(lldp->lldpd == NULL) ||
ovs_list_is_empty(&lldp->lldpd->g_hardware)) {
printf("Error: unable to create dummy lldp instance");
return 1;
}
/* Populate instance with local chassis info */
hw = lldpd_first_hardware(lldp->lldpd);
ch = hw->h_lport.p_chassis;
ch->c_id_subtype = chassis.c_id_subtype;
ch->c_id = chassis.c_id;
ch->c_id_len = chassis.c_id_len;
ch->c_name = chassis.c_name;
ch->c_descr = chassis.c_descr;
ch->c_cap_available = chassis.c_cap_available;
ch->c_cap_enabled = chassis.c_cap_enabled;
/* Populate instance with local port info */
hw->h_lport.p_id_subtype = hardware.h_lport.p_id_subtype;
hw->h_lport.p_id = hardware.h_lport.p_id;
hw->h_lport.p_id_len = strlen(hw->h_lport.p_id);
hw->h_lport.p_descr = hardware.h_lport.p_descr;
hw->h_lport.p_mfs = hardware.h_lport.p_mfs;
/* Populate instance with auto attach element discovery info */
hw->h_lport.p_element.type = hardware.h_lport.p_element.type;
hw->h_lport.p_element.mgmt_vlan = hardware.h_lport.p_element.mgmt_vlan;
hw->h_lport.p_element.system_id.system_mac =
hardware.h_lport.p_element.system_id.system_mac;
hw->h_lport.p_element.system_id.conn_type =
hardware.h_lport.p_element.system_id.conn_type;
hw->h_lport.p_element.system_id.rsvd =
hardware.h_lport.p_element.system_id.rsvd;
hw->h_lport.p_element.system_id.rsvd2[0] =
hardware.h_lport.p_element.system_id.rsvd2[0];
hw->h_lport.p_element.system_id.rsvd2[1] =
hardware.h_lport.p_element.system_id.rsvd2[1];
/* Populate instance with two auto attach isid/vlan mappings */
map[0].isid_vlan_data.status = map_init[0].isid_vlan_data.status;
map[0].isid_vlan_data.vlan = map_init[0].isid_vlan_data.vlan;
map[0].isid_vlan_data.isid = map_init[0].isid_vlan_data.isid;
map[1].isid_vlan_data.status = map_init[1].isid_vlan_data.status;
map[1].isid_vlan_data.vlan = map_init[1].isid_vlan_data.vlan;
map[1].isid_vlan_data.isid = map_init[1].isid_vlan_data.isid;
ovs_list_init(&hw->h_lport.p_isid_vlan_maps);
ovs_list_push_back(&hw->h_lport.p_isid_vlan_maps, &map[0].m_entries);
ovs_list_push_back(&hw->h_lport.p_isid_vlan_maps, &map[1].m_entries);
/* Construct LLDPPDU (including Ethernet header) */
eth_compose(&packet, eth_addr_lldp, eth_src, ETH_TYPE_LLDP, 0);
n = lldp_send(lldp->lldpd, hw, &packet);
if (n == 0) {
printf("Error: unable to build packet\n");
return 1;
}
/* Decode the constructed LLDPPDU */
assert(lldp_decode(NULL, dp_packet_data(&packet), dp_packet_size(&packet), hw,
&nchassis, &nport) != -1);
/* Expecting returned pointers to allocated structures */
if (!nchassis || !nport) {
printf("Error: unable to decode packet");
return 1;
}
/* Verify chassis values */
check_received_chassis(&chassis, nchassis);
/* Verify port values */
check_received_port(&hardware.h_lport, nport);
/* Verify auto attach values */
check_received_aa(&hardware.h_lport, nport, map_init);
lldpd_chassis_cleanup(nchassis, true);
lldpd_port_cleanup(nport, true);
free(nport);
lldp_destroy_dummy(lldp);
return 0;
}
static void
test_aa_main(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
{
int num_errors = 0;
/* Make sure we emit valid auto-attach LLDPPDUs */
num_tests++;
num_errors += test_aa_send();
/* Add more tests here */
printf("executed %d tests, %d errors\n", num_tests, num_errors);
exit(num_errors != 0);
}
OVSTEST_REGISTER("test-aa", test_aa_main);