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a85b5759f3
These files were pulled from the 1.6.3 release tarball. This new version builds against OpenSSL version 1.1 which will be the default in the new Debian Stable which is due to be released RealSoonNow (tm).
284 lines
8.9 KiB
C
284 lines
8.9 KiB
C
/*
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* testcode/unitecs.c - unit test for ecs routines.
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*
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* Copyright (c) 2013, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/**
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* \file
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* Calls ecs related unit tests. Exits with code 1 on a failure.
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*/
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#include "config.h"
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#ifdef CLIENT_SUBNET
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#include "util/log.h"
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#include "util/module.h"
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#include "testcode/unitmain.h"
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#include "edns-subnet/addrtree.h"
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#include "edns-subnet/subnetmod.h"
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/*
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void printkey(addrkey_t *k, addrlen_t bits)
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{
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int byte;
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int bytes = bits/8 + ((bits%8)>0);
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char msk = 0xFF;
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for (byte = 0; byte < bytes; byte++) {
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//~ if (byte+1 == bytes)
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//~ msk = 0xFF<<(8-bits%8);
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printf("%02x ", k[byte]&msk);
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}
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}
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void print_tree(struct addrnode* node, int indent, int maxdepth)
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{
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struct addredge* edge;
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int i, s, byte;
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if (indent == 0) printf("-----Tree-----\n");
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if (indent > maxdepth) {
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printf("\n");
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return;
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}
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printf("[node elem:%d] (%d)\n", node->elem != NULL, node);
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for (i = 0; i<2; i++) {
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if (node->edge[i]) {
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for (s = 0; s < indent; s++) printf(" ");
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printkey(node->edge[i]->str, node->edge[i]->len);
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printf("(len %d bits, %d bytes) ", node->edge[i]->len,
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node->edge[i]->len/8 + ((node->edge[i]->len%8)>0));
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print_tree(node->edge[i]->node, indent+1, maxdepth);
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}
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}
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if (indent == 0) printf("-----Tree-----");
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}
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*/
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/* what should we check?
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* X - is it balanced? (a node with 1 child shoudl not have
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* a node with 1 child MUST have elem
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* child must be sub of parent
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* edge must be longer than parent edge
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* */
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static int addrtree_inconsistent_subtree(struct addrtree* tree,
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struct addredge* parent_edge, addrlen_t depth)
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{
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struct addredge* edge;
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struct addrnode* node = parent_edge->node;
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int childcount, i, r;
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if (depth > tree->max_depth) return 15;
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childcount = (node->edge[0] != NULL) + (node->edge[1] != NULL);
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/* Only nodes with 2 children should possibly have no element. */
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if (childcount < 2 && !node->elem) return 10;
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for (i = 0; i<2; i++) {
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edge = node->edge[i];
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if (!edge) continue;
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if (!edge->node) return 11;
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if (!edge->str) return 12;
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if (edge->len <= parent_edge->len) return 13;
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if (!unittest_wrapper_addrtree_issub(parent_edge->str,
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parent_edge->len, edge->str, edge->len, 0))
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return 14;
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if ((r = addrtree_inconsistent_subtree(tree, edge, depth+1)) != 0)
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return 100+r;
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}
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return 0;
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}
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static int addrtree_inconsistent(struct addrtree* tree)
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{
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struct addredge* edge;
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int i, r;
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if (!tree) return 0;
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if (!tree->root) return 1;
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for (i = 0; i<2; i++) {
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edge = tree->root->edge[i];
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if (!edge) continue;
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if (!edge->node) return 3;
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if (!edge->str) return 4;
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if ((r = addrtree_inconsistent_subtree(tree, edge, 1)) != 0)
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return r;
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}
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return 0;
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}
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static addrlen_t randomkey(addrkey_t **k, int maxlen)
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{
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int byte;
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int bits = rand() % maxlen;
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int bytes = bits/8 + (bits%8>0); /*ceil*/
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*k = (addrkey_t *) malloc(bytes * sizeof(addrkey_t));
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for (byte = 0; byte < bytes; byte++) {
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(*k)[byte] = (addrkey_t)(rand() & 0xFF);
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}
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return (addrlen_t)bits;
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}
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static void elemfree(void *envptr, void *elemptr)
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{
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struct reply_info *elem = (struct reply_info *)elemptr;
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(void)envptr;
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free(elem);
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}
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static void consistency_test(void)
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{
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addrlen_t l;
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time_t i;
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unsigned int count;
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addrkey_t *k;
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struct addrtree* t;
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struct module_env env;
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struct reply_info *elem;
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time_t timenow = 0;
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unit_show_func("edns-subnet/addrtree.h", "Tree consistency check");
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srand(9195); /* just some value for reproducibility */
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t = addrtree_create(100, &elemfree, &unittest_wrapper_subnetmod_sizefunc, &env, 0);
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count = t->node_count;
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unit_assert(count == 0);
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for (i = 0; i < 1000; i++) {
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l = randomkey(&k, 128);
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elem = (struct reply_info *) calloc(1, sizeof(struct reply_info));
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addrtree_insert(t, k, l, 64, elem, timenow + 10, timenow);
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/* This should always hold because no items ever expire. They
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* could be overwritten, though. */
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unit_assert( count <= t->node_count );
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count = t->node_count;
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free(k);
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unit_assert( !addrtree_inconsistent(t) );
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}
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addrtree_delete(t);
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unit_show_func("edns-subnet/addrtree.h", "Tree consistency with purge");
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t = addrtree_create(8, &elemfree, &unittest_wrapper_subnetmod_sizefunc, &env, 0);
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unit_assert(t->node_count == 0);
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for (i = 0; i < 1000; i++) {
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l = randomkey(&k, 128);
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elem = (struct reply_info *) calloc(1, sizeof(struct reply_info));
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addrtree_insert(t, k, l, 64, elem, i + 10, i);
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free(k);
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unit_assert( !addrtree_inconsistent(t) );
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}
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addrtree_delete(t);
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unit_show_func("edns-subnet/addrtree.h", "Tree consistency with limit");
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t = addrtree_create(8, &elemfree, &unittest_wrapper_subnetmod_sizefunc, &env, 27);
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unit_assert(t->node_count == 0);
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for (i = 0; i < 1000; i++) {
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l = randomkey(&k, 128);
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elem = (struct reply_info *) calloc(1, sizeof(struct reply_info));
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addrtree_insert(t, k, l, 64, elem, i + 10, i);
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unit_assert( t->node_count <= 27);
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free(k);
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unit_assert( !addrtree_inconsistent(t) );
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}
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addrtree_delete(t);
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}
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static void issub_test(void)
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{
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addrkey_t k1[] = {0x55, 0x55, 0x5A};
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addrkey_t k2[] = {0x55, 0x5D, 0x5A};
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unit_show_func("edns-subnet/addrtree.h", "issub");
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unit_assert( !unittest_wrapper_addrtree_issub(k1, 24, k2, 24, 0) );
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unit_assert( unittest_wrapper_addrtree_issub(k1, 8, k2, 16, 0) );
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unit_assert( unittest_wrapper_addrtree_issub(k2, 12, k1, 13, 0) );
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unit_assert( !unittest_wrapper_addrtree_issub(k1, 16, k2, 12, 0) );
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unit_assert( unittest_wrapper_addrtree_issub(k1, 12, k2, 12, 0) );
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unit_assert( !unittest_wrapper_addrtree_issub(k1, 13, k2, 13, 0) );
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unit_assert( unittest_wrapper_addrtree_issub(k1, 24, k2, 24, 13) );
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unit_assert( !unittest_wrapper_addrtree_issub(k1, 24, k2, 20, 13) );
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unit_assert( unittest_wrapper_addrtree_issub(k1, 20, k2, 24, 13) );
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}
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static void getbit_test(void)
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{
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addrkey_t k1[] = {0x55, 0x55, 0x5A};
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int i;
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unit_show_func("edns-subnet/addrtree.h", "getbit");
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for(i = 0; i<20; i++) {
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unit_assert( unittest_wrapper_addrtree_getbit(k1, 20, (addrlen_t)i) == (i&1) );
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}
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}
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static void bits_common_test(void)
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{
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addrkey_t k1[] = {0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0};
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addrkey_t k2[] = {0,0,0,0,0,0,0,0};
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addrlen_t i;
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unit_show_func("edns-subnet/addrtree.h", "bits_common");
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for(i = 0; i<64; i++) {
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unit_assert( unittest_wrapper_addrtree_bits_common(k1, 64, k1, 64, i) == 64 );
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}
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for(i = 0; i<8; i++) {
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k2[i] = k1[i]^(1<<i);
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}
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unit_assert( unittest_wrapper_addrtree_bits_common(k1, 64, k2, 64, 0) == 0*8+7 );
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unit_assert( unittest_wrapper_addrtree_bits_common(k1, 64, k2, 64, 8) == 1*8+6 );
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unit_assert( unittest_wrapper_addrtree_bits_common(k1, 64, k2, 64, 16) == 2*8+5 );
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unit_assert( unittest_wrapper_addrtree_bits_common(k1, 64, k2, 64, 24) == 3*8+4 );
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unit_assert( unittest_wrapper_addrtree_bits_common(k1, 64, k2, 64, 32) == 4*8+3 );
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unit_assert( unittest_wrapper_addrtree_bits_common(k1, 64, k2, 64, 40) == 5*8+2 );
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unit_assert( unittest_wrapper_addrtree_bits_common(k1, 64, k2, 64, 48) == 6*8+1 );
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unit_assert( unittest_wrapper_addrtree_bits_common(k1, 64, k2, 64, 56) == 7*8+0 );
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}
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static void cmpbit_test(void)
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{
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addrkey_t k1[] = {0xA5, 0x0F};
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addrkey_t k2[] = {0x5A, 0xF0};
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addrlen_t i;
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unit_show_func("edns-subnet/addrtree.h", "cmpbit");
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for(i = 0; i<16; i++) {
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unit_assert( !unittest_wrapper_addrtree_cmpbit(k1,k1,i) );
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unit_assert( unittest_wrapper_addrtree_cmpbit(k1,k2,i) );
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}
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}
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void ecs_test(void)
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{
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unit_show_feature("ecs");
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cmpbit_test();
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bits_common_test();
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getbit_test();
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issub_test();
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consistency_test();
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}
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#endif /* CLIENT_SUBNET */
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