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/*
* Copyright (c) 2020-2023 One Identity
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include <criterion/criterion.h>
#include <criterion/parameterized.h>
#include "transport/transport-socket-proxy-private.h"
#include "transport/transport-socket.h"
#include "apphook.h"
#include "cfg.h"
static void
setup(void)
{
app_startup();
configuration = cfg_new_snippet();
}
static void
teardown(void)
{
if (configuration)
cfg_free(configuration);
app_shutdown();
}
static void
fill_proxy_header_buffer(LogTransportSocketProxy *self, const gchar *msg)
{
self->proxy_header_buff_len = strlen(msg) + 1;
g_strlcpy((gchar *)self->proxy_header_buff, msg, sizeof(self->proxy_header_buff));
}
static void
concat_nv(const gchar *name, const gchar *value, gsize value_len, gpointer user_data)
{
GString *aux_nv_concated = user_data;
g_string_append_printf(aux_nv_concated, "%s:%s ", name, value);
}
TestSuite(log_transport_proxy, .init = setup, .fini = teardown);
typedef struct
{
const gchar *proxy_header;
gboolean valid;
} ProtocolHeaderTestParams;
ParameterizedTestParameters(log_transport_proxy, test_proxy_protocol_parse_header)
{
static ProtocolHeaderTestParams test_params[] =
{
/* SUCCESS */
{ "PROXY UNKNOWN\r\n", TRUE },
{ "PROXY UNKNOWN extra ignored parameters\r\n", TRUE },
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444\r\n", TRUE },
{ "PROXY TCP6 ::1 ::2 3333 4444\r\n", TRUE },
/* INVALID PROTO */
{ "PROXY UNKNOWN\n", TRUE }, // WRONG TERMINATION BUT PERMISSIVE IMPLEMENTATION
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444\n", TRUE }, // WRONG TERMINATION BUT PERMISSIVE IMPLEMENTATION
{ "PROXY UNKNOWN\r", TRUE }, // WRONG TERMINATION BUT PERMISSIVE IMPLEMENTATION
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444\r", TRUE }, // WRONG TERMINATION BUT PERMISSIVE IMPLEMENTATION
{ "PROXY\r\n", FALSE },
{ "PROXY TCP4\r\n", FALSE },
{ "PROXY TCP4 1.1.1.1\r\n", FALSE },
{ "PROXY TCP4 1.1.1.1 2.2.2.2\r\n", FALSE },
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333\r\n", FALSE },
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444 extra param\r\n", TRUE },
/* EXTRA WHITESPACE - PERMISSIVE */
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444\r\n", TRUE },
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444\r\n", TRUE },
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444\r\n", TRUE },
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444\r\n", TRUE },
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444 \r\n", TRUE },
/* EXTRA WHITESPACE BEFORE PARAMETERS */
{ "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444\r\n", FALSE },
/* INVALID ARGUMENTS - PERMISSIVE */
{ "PROXY TCP6 1.1.1.1 2.2.2.2 3333 4444\r\n", TRUE }, // WRONG IP PROTO
{ "PROXY TCP4 ::1 ::2 3333 4444\r\n", TRUE }, // WRONG IP PROTO
{ "PROXY TCP4 1.1.1 2.2.2.2 3333 4444\r\n", TRUE }, // WRONG IP
{ "PROXY TCP4 1.1.1.1.1 2.2.2.2 3333 4444\r\n", TRUE }, // WRONG IP
{ "PROXY TCP6 ::1::0 ::1 3333 4444\r\n", TRUE }, // WRONG IP
{ "PROXY TCP4 1.1.1.1 2.2.2.2 33333 0\r\n", TRUE }, // WRONG PORT
{ "PROXY TCP4 1.1.1.1 2.2.2.2 33333 -1\r\n", TRUE }, // WRONG PORT
{ "PROXY TCP4 1.1.1.1 2.2.2.2 33333 65536\r\n", TRUE }, // WRONG PORT
/* INVALID ARGUMENT(S)*/
{ "PROXY TCP3 1.1.1.1 2.2.2.2 3333 4444\r\n", FALSE}, // WRONG IP PROTO
{
"PROXY TCP4 padpadpadpadpadpadpadpadpadpadpadpadpad"
"padpadpadpadpadpadpadpadpadpadpadpadpadpadpadpadpad"
"padpadpadpadpadpadpadpadpadpadpadpadpadpadpadpadpad", FALSE
} // TOO LONG
};
return cr_make_param_array(ProtocolHeaderTestParams, test_params, G_N_ELEMENTS(test_params));
}
ParameterizedTest(ProtocolHeaderTestParams *params, log_transport_proxy, test_proxy_protocol_parse_header)
{
LogTransport *transport = log_transport_stream_socket_new(0);
LogTransportSocket *transport_socket = (LogTransportSocket *)transport;
transport_socket->proto = IPPROTO_TCP;
LogTransportSocketProxy *self = log_transport_socket_proxy_new(transport, false);
fill_proxy_header_buffer(self, params->proxy_header);
cr_assert(_is_proxy_version_v1(self));
self->proxy_header_version = 1;
gboolean valid = _parse_proxy_header(self);
cr_assert_eq(valid, params->valid,
"This should be %s: %s", params->valid ? "valid" : "invalid", params->proxy_header);
log_transport_free(transport);
}
Test(log_transport_proxy, test_proxy_invalid_header)
{
LogTransport *transport = log_transport_stream_socket_new(0);
LogTransportSocket *transport_socket = (LogTransportSocket *)transport;
transport_socket->proto = IPPROTO_TCP;
LogTransportSocketProxy *self = log_transport_socket_proxy_new(transport, false);
fill_proxy_header_buffer(self, "invalid header\r\n");
cr_assert((! _is_proxy_version_v1(self)) && (! _is_proxy_version_v2(self)));
log_transport_free(transport);
}
Test(log_transport_proxy, test_proxy_aux_data)
{
const gchar *expected = "PROXIED_SRCIP:1.1.1.1 PROXIED_DSTIP:2.2.2.2 "
"PROXIED_SRCPORT:3333 PROXIED_DSTPORT:4444 "
"PROXIED_IP_VERSION:4 ";
LogTransport *transport = log_transport_stream_socket_new(0);
LogTransportSocket *transport_socket = (LogTransportSocket *)transport;
transport_socket->proto = IPPROTO_TCP;
LogTransportSocketProxy *self = log_transport_socket_proxy_new(transport, false);
fill_proxy_header_buffer(self, "PROXY TCP4 1.1.1.1 2.2.2.2 3333 4444\r\n");
cr_assert(_is_proxy_version_v1(self));
self->proxy_header_version = 1;
cr_assert(_parse_proxy_header(self));
LogTransportAuxData aux;
log_transport_aux_data_init(&aux);
_augment_aux_data(self, &aux);
GString *aux_nv_concated = g_string_new(NULL);
log_transport_aux_data_foreach(&aux, concat_nv, aux_nv_concated);
cr_assert_str_eq(aux_nv_concated->str, expected);
g_string_free(aux_nv_concated, TRUE);
log_transport_aux_data_destroy(&aux);
log_transport_free(transport);
}
Test(log_transport_proxy, test_proxy_v2_header)
{
const gchar *expected = "PROXIED_SRCIP:1.1.1.1 PROXIED_DSTIP:2.2.2.2 "
"PROXIED_SRCPORT:33333 PROXIED_DSTPORT:44444 "
"PROXIED_IP_VERSION:4 ";
LogTransport *transport = log_transport_stream_socket_new(0);
LogTransportSocket *transport_socket = (LogTransportSocket *)transport;
transport_socket->proto = IPPROTO_TCP;
LogTransportSocketProxy *self = log_transport_socket_proxy_new(transport, false);
gchar binary_msg[] = "\r\n\r\n\0\r\nQUIT\n!\21\0\f\1\1\1\1\2\2\2\2\2025\255\234";
self->proxy_header_buff_len = 28;
memcpy(self->proxy_header_buff, binary_msg, self->proxy_header_buff_len);
cr_assert(_is_proxy_version_v2(self));
self->proxy_header_version = 2;
cr_assert(_parse_proxy_header(self));
LogTransportAuxData aux;
log_transport_aux_data_init(&aux);
_augment_aux_data(self, &aux);
GString *aux_nv_concated = g_string_new(NULL);
log_transport_aux_data_foreach(&aux, concat_nv, aux_nv_concated);
cr_assert_str_eq(aux_nv_concated->str, expected);
g_string_free(aux_nv_concated, TRUE);
log_transport_aux_data_destroy(&aux);
log_transport_free(transport);
}
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