opnsense-src/tests/sys/netinet/libalias/util.h
Lutz Donnerhacke 488f39f355 tests/libalias: Test LibAliasIn and redirection
Rework the tests to check the correct layer in a single test. Factor
out tests for reuse in other modules. Extend the test suite for
libalias(3) to incoming connections. Test the various types of
redirections.

gettimeofday(3) is almost as expensive as the calls to libalias.
So the call frequency for this call is reduced by a factor of 1000 in
order to neglect it's influence.

Using NAT entries became more realistic: A communication of a random
length of up to 150 packets (10% outgoing, 90% incoming) is applied
for each entry.

Add port forwardings to the performance tests.  This will cause random
incoming packets to match the random port forwardings opends beforehand.

After a long test run, a lot of ressouces have been allocated.
Measure the time tot free them.

Reviewed by:	kp (partially)
Differential Revision: https://reviews.freebsd.org/D30412
Differential Revision: https://reviews.freebsd.org/D30408
Differential Revision: https://reviews.freebsd.org/D30405
Differential Revision: https://reviews.freebsd.org/D30443

(cherry picked from commit f1462ab051)
(cherry picked from commit 755bab6d55)
(cherry picked from commit 6e87898a2c)
(cherry picked from commit d62e1ecba0)
(cherry picked from commit 5434ebd256)

Fix various bugs:
(cherry picked from commit ccac04cae5)
(cherry picked from commit 7b8696bf12)
(cherry picked from commit fef99da69f)
(cherry picked from commit f4c460dacd)
2021-06-02 11:35:09 +02:00

137 lines
4.2 KiB
C

/*
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright 2021 Lutz Donnerhacke
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/types.h>
#include <arpa/inet.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#ifndef _UTIL_H
#define _UTIL_H
/* common ip ranges */
extern struct in_addr masq, pub, prv1, prv2, prv3, cgn, ext, ANY_ADDR;
int randcmp(const void *a, const void *b);
void hexdump(void *p, size_t len);
struct ip * ip_packet(u_char protocol, size_t len);
struct udphdr * set_udp(struct ip *p, u_short sport, u_short dport);
inline int
addr_eq(struct in_addr a, struct in_addr b)
{
return a.s_addr == b.s_addr;
}
#define a2h(a) ntohl(a.s_addr)
inline int
rand_range(int min, int max)
{
return min + rand()%(max - min);
}
#define NAT_CHECK(pip, src, dst, msq) do { \
int res; \
int len = ntohs(pip->ip_len); \
pip->ip_src = src; \
pip->ip_dst = dst; \
res = LibAliasOut(la, pip, len); \
ATF_CHECK_MSG(res == PKT_ALIAS_OK, \
">%d< not met PKT_ALIAS_OK", res); \
ATF_CHECK(addr_eq(msq, pip->ip_src)); \
ATF_CHECK(addr_eq(dst, pip->ip_dst)); \
} while(0)
#define NAT_FAIL(pip, src, dst) do { \
int res; \
int len = ntohs(pip->ip_len); \
pip->ip_src = src; \
pip->ip_dst = dst; \
res = LibAliasOut(la, pip, len); \
ATF_CHECK_MSG(res != PKT_ALIAS_OK), \
">%d< not met !PKT_ALIAS_OK", res); \
ATF_CHECK(addr_eq(src, pip->ip_src)); \
ATF_CHECK(addr_eq(dst, pip->ip_dst)); \
} while(0)
#define UNNAT_CHECK(pip, src, dst, rel) do { \
int res; \
int len = ntohs(pip->ip_len); \
pip->ip_src = src; \
pip->ip_dst = dst; \
res = LibAliasIn(la, pip, len); \
ATF_CHECK_MSG(res == PKT_ALIAS_OK, \
">%d< not met PKT_ALIAS_OK", res); \
ATF_CHECK(addr_eq(src, pip->ip_src)); \
ATF_CHECK(addr_eq(rel, pip->ip_dst)); \
} while(0)
#define UNNAT_FAIL(pip, src, dst) do { \
int res; \
int len = ntohs(pip->ip_len); \
pip->ip_src = src; \
pip->ip_dst = dst; \
res = LibAliasIn(la, pip, len); \
ATF_CHECK_MSG(res != PKT_ALIAS_OK, \
">%d< not met !PKT_ALIAS_OK", res); \
ATF_CHECK(addr_eq(src, pip->ip_src)); \
ATF_CHECK(addr_eq(dst, pip->ip_dst)); \
} while(0)
#define UDP_NAT_CHECK(p, u, si, sp, di, dp, mi) do { \
u = set_udp(p, (sp), (dp)); \
NAT_CHECK(p, (si), (di), (mi)); \
ATF_CHECK(u->uh_dport == htons(dp)); \
} while(0)
#define UDP_NAT_FAIL(p, u, si, sp, di, dp) do { \
u = set_udp(p, (sp), (dp)); \
NAT_FAIL(p, (si), (mi)); \
} while(0)
#define UDP_UNNAT_CHECK(p, u, si, sp, mi, mp, di, dp) \
do { \
u = set_udp(p, (sp), (mp)); \
UNNAT_CHECK(p, (si), (mi), (di)); \
ATF_CHECK(u->uh_sport == htons(sp)); \
ATF_CHECK(u->uh_dport == htons(dp)); \
} while(0)
#define UDP_UNNAT_FAIL(p, u, si, sp, mi, mp) do { \
u = set_udp(p, (sp), (mp)); \
UNNAT_FAIL(p, (si), (mi)); \
} while(0)
#endif /* _UTIL_H */