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/*
* BGP Routing table range lookup test
* Copyright (C) 2012 OSR.
* Copyright (C) 2018 Marcel Röthke (marcel.roethke@haw-hamburg.de), for HAW
* Hamburg
*
* This file is part of FRRouting
*
* Quagga is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* Quagga is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
#include "prefix.h"
#include "table.h"
#include "bgpd/bgp_table.h"
#include "linklist.h"
/* Satisfy link requirements from including bgpd.h */
struct zebra_privs_t bgpd_privs = {0};
/*
* test_node_t
*
* Information that is kept for each node in the radix tree.
*/
struct test_node_t {
/*
* Human readable representation of the string. Allocated using
* malloc()/dup().
*/
char *prefix_str;
};
/*
* add_node
*
* Add the given prefix (passed in as a string) to the given table.
*/
static void add_node(struct bgp_table *table, const char *prefix_str)
{
struct prefix_ipv4 p;
struct test_node_t *node;
struct bgp_dest *dest;
assert(prefix_str);
if (str2prefix_ipv4(prefix_str, &p) <= 0)
assert(0);
dest = bgp_node_get(table, (struct prefix *)&p);
if (dest->info) {
assert(0);
return;
}
node = malloc(sizeof(struct test_node_t));
assert(node);
node->prefix_str = strdup(prefix_str);
assert(node->prefix_str);
dest->info = node;
}
static bool prefix_in_array(const struct prefix *p, struct prefix *prefix_array,
size_t prefix_array_size)
{
for (size_t i = 0; i < prefix_array_size; ++i) {
if (prefix_same(p, &prefix_array[i]))
return true;
}
return false;
}
static void check_lookup_result(struct bgp_dest *match, va_list arglist)
{
char *prefix_str;
struct prefix *prefixes = NULL;
size_t prefix_count = 0;
while ((prefix_str = va_arg(arglist, char *))) {
++prefix_count;
prefixes = realloc(prefixes, sizeof(*prefixes) * prefix_count);
if (str2prefix(prefix_str, &prefixes[prefix_count - 1]) <= 0)
assert(0);
}
/* check if the result is empty and if it is allowd to be empty */
assert((prefix_count == 0 && !match) || prefix_count > 0);
if (!match)
return;
struct bgp_dest *dest = match;
while ((dest = bgp_route_next_until(dest, match))) {
const struct prefix *dest_p = bgp_dest_get_prefix(dest);
if (bgp_dest_has_bgp_path_info_data(dest)
&& !prefix_in_array(dest_p, prefixes, prefix_count)) {
printf("prefix %pFX was not expected!\n", dest_p);
assert(0);
}
}
}
static void do_test(struct bgp_table *table, const char *prefix, ...)
{
va_list arglist;
struct prefix p;
va_start(arglist, prefix);
printf("\nDoing lookup for %s\n", prefix);
if (str2prefix(prefix, &p) <= 0)
assert(0);
struct bgp_dest *dest = bgp_table_subtree_lookup(table, &p);
check_lookup_result(dest, arglist);
va_end(arglist);
printf("Checks successfull\n");
}
/*
* test_range_lookup
*/
static void test_range_lookup(void)
{
struct bgp_table *table = bgp_table_init(NULL, AFI_IP, SAFI_UNICAST);
printf("Testing bgp_table_range_lookup\n");
printf("Setup bgp_table");
const char *prefixes[] = {"1.16.0.0/16", "1.16.128.0/18",
"1.16.192.0/18", "1.16.64.0/19",
"1.16.160.0/19", "1.16.32.0/20",
"1.16.32.0/21", "16.0.0.0/16"};
int num_prefixes = array_size(prefixes);
for (int i = 0; i < num_prefixes; i++)
add_node(table, prefixes[i]);
do_test(table, "1.16.0.0/17", "1.16.64.0/19", "1.16.32.0/20",
"1.16.32.0/20", "1.16.32.0/21", NULL);
do_test(table, "1.16.128.0/17", "1.16.128.0/18", "1.16.192.0/18",
"1.16.160.0/19", NULL);
do_test(table, "1.16.0.0/16", "1.16.0.0/16", "1.16.128.0/18",
"1.16.192.0/18", "1.16.64.0/19", "1.16.160.0/19",
"1.16.32.0/20", "1.16.32.0/21", NULL);
do_test(table, "1.17.0.0/16", NULL);
do_test(table, "128.0.0.0/8", NULL);
do_test(table, "16.0.0.0/8", "16.0.0.0/16", NULL);
do_test(table, "0.0.0.0/2", "1.16.0.0/16", "1.16.128.0/18",
"1.16.192.0/18", "1.16.64.0/19", "1.16.160.0/19",
"1.16.32.0/20", "1.16.32.0/21", "16.0.0.0/16", NULL);
}
int main(void)
{
test_range_lookup();
}
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