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/* ip_endpoint tests, for libreswan
*
* Copyright (C) 2000 Henry Spencer.
* Copyright (C) 2012 Paul Wouters <paul@libreswan.org>
* Copyright (C) 2018 Andrew Cagney
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <https://www.gnu.org/licenses/lgpl-2.1.txt>.
*
* This library 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 Library General Public
* License for more details.
*/
#include <stdio.h>
#include <string.h>
#include "lswcdefs.h" /* for elemsof() */
#include "constants.h" /* for streq() */
#include "ip_endpoint.h"
#include "ip_protocol.h"
#include "ipcheck.h"
void ip_endpoint_check(void)
{
/*
* XXX: can't yet do invalid ports.
*/
static const struct test {
int line;
const struct ip_info *afi;
const char *in;
uint16_t hport;
const char *str;
uint8_t nport[2];
bool is_unset;
bool is_specified;
bool is_any;
} tests[] = {
/* anything else? */
{ LN, &ipv4_info, "1.2.3.4", 65535, "1.2.3.4:65535", { 255, 255, }, .is_specified = true, },
{ LN, &ipv4_info, "255.255.255.255", 65535, "255.255.255.255:65535", { 255, 255, }, .is_specified = true, },
{ LN, &ipv6_info, "1:12:3:14:5:16:7:18", 65535, "[1:12:3:14:5:16:7:18]:65535", { 255, 255, }, .is_specified = true, },
{ LN, &ipv6_info, "11:22:33:44:55:66:77:88", 65535, "[11:22:33:44:55:66:77:88]:65535", { 255, 255, }, .is_specified = true, },
/* treat special different ? */
{ LN, &ipv4_info, "0.0.0.1", 65535, "0.0.0.1:65535", { 255, 255, }, .is_specified = true, },
{ LN, &ipv6_info, "::1", 65535, "[::1]:65535", { 255, 255, }, .is_specified = true, },
/* never suppress the port */
{ LN, &ipv4_info, "0.0.0.0", 0, "0.0.0.0:0", { 0, 0, }, .is_any = true, },
{ LN, &ipv6_info, "::", 0, "[::]:0", { 0, 0, }, .is_any = true, },
/* not valid, hence not specified */
{ LN, &ipv4_info, "0.0.0.0", 1, "0.0.0.0:1", { 0, 1, }, .is_specified = false, },
{ LN, &ipv6_info, "::", 1, "[::]:1", { 0, 1, }, .is_specified = false, },
/* longest */
{ LN, &ipv4_info, "101.102.103.104", 65534, "101.102.103.104:65534", { 255, 254, }, .is_specified = true, },
{ LN, &ipv6_info, "1001:1002:1003:1004:1005:1006:1007:1008", 65534, "[1001:1002:1003:1004:1005:1006:1007:1008]:65534", { 255, 254, }, .is_specified = true, },
};
const char *oops;
for (size_t ti = 0; ti < elemsof(tests); ti++) {
const struct test *t = &tests[ti];
PRINT("%s '%s'%d->%s", pri_afi(t->afi), t->in, t->hport, t->str);
const struct ip_info *type = t->afi;
ip_address a;
oops = ttoaddress_num(shunk1(t->in), type, &a);
if (oops != NULL) {
/* Error occurred, but we didn't expect one */
FAIL("ttosubnet failed: %s", oops);
}
ip_endpoint e, *endpoint = &e;
const struct ip_protocol *protocol = t->hport == 0 ? &ip_protocol_icmp : &ip_protocol_udp;
if (t->is_specified) {
e = endpoint_from_address_protocol_port(a, protocol,
ip_hport(t->hport));
} else {
/*
* Construct the bogus endpoint by hand - the
* endpoint_from_*() code would pexpect().
*/
e = (ip_endpoint) {
.is_set = true,
.version = a.version,
.bytes = a.bytes,
.hport = t->hport,
.ipproto = protocol->ipproto,
};
}
CHECK_INFO(endpoint);
/*
* str_endpoint() / jam_endpoint()
*/
CHECK_STR2(endpoint);
CHECK_COND(endpoint, is_unset);
CHECK_COND2(endpoint, is_specified);
/*
* endpoint_*address()
*/
ip_address aout = endpoint_address(e);
address_buf astr;
if (!streq(str_address(&aout, &astr), t->in)) {
FAIL("endpoint_address() returned %s, expecting %s",
astr.buf, t->in);
}
/*
* endpoint_*port()
*/
/* host port */
uint16_t heport = endpoint_hport(e);
if (!memeq(&heport, &t->hport, sizeof(heport))) {
FAIL("endpoint_hport() returned '%d', expected '%d'",
heport, t->hport);
}
/* network port */
uint16_t neport = nport(endpoint_port(e));
if (!memeq(&neport, &t->nport, sizeof(neport))) {
FAIL("endpoint_nport() returned '%04x', expected '%02x%02x'",
neport, t->nport[0], t->nport[1]);
}
/* tweak the port numbers */
uint16_t hport_plus_one = t->hport+1;
uint16_t nport_plus_one = ntohs(t->hport+1);
/* check math? handle carry; */
uint8_t nport_plus_plus[2];
memcpy(nport_plus_plus, t->nport, sizeof(nport_plus_plus));
nport_plus_plus[1]++;
if (nport_plus_plus[1] < t->nport[1])
nport_plus_plus[0]++;
if (!memeq(&nport_plus_one, nport_plus_plus, sizeof(nport_plus_one))) {
FAIL("can't do basic math");
}
/* hport+1 -> nport+1 */
ip_endpoint hp = set_endpoint_port(e, ip_hport(hport_plus_one));
uint16_t nportp = nport(endpoint_port(hp));
if (!memeq(&nportp, &nport_plus_one, sizeof(nportp))) {
FAIL("endpoint_nport(set_endpoint_hport(+1)) returned '%04x', expected '%04x'",
nportp, nport_plus_one);
}
/*
* endpoint_eq()
*/
if (!endpoint_eq_endpoint(e, e)) {
FAIL("endpoint_eq(e, e) failed");
}
if (endpoint_eq_endpoint(e, hp)) {
FAIL("endpoint_eq(e, e+1) succeeded");
}
/*
* endpoint_address_eq()
*/
if (!endpoint_address_eq_address(e, a)) {
FAIL("endpoint_address_eq(e, a) failed");
}
}
}
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