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iwd/unit/test-mpdu.c
Vivek Das Mohapatra 6cc6a8a2cb unit: add a test for harmless IE clones 
Test handling of technically illegal but harmless cloned IEs.
Based on real traffic captured from retail APs.

As cloned IEs are now allowed the

  "/IE order/Bad (Duplicate + Out of Order IE) 1"

test payload has been altered to be more-wrong so it still fails
verification as expected.
2024-10-07 13:19:38 -05:00

319 lines
12 KiB
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/*
*
* Wireless daemon for Linux
*
* Copyright (C) 2013-2019 Intel Corporation. All rights reserved.
*
* 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
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <ell/ell.h>
#include "src/mpdu.h"
#include "src/ie.h"
struct deauthentication_data {
const unsigned char *frame;
size_t frame_len;
uint16_t duration;
const unsigned char dest[6];
const unsigned char src[6];
const unsigned char bssid[6];
uint8_t fragment_number;
uint16_t sequence_number;
};
static const unsigned char deauthentication_data_1[] = {
0xc0, 0x00, 0x3a, 0x01, 0x00, 0x0f, 0xb5, 0x88,
0xac, 0x82, 0x00, 0x14, 0x6c, 0x7e, 0x40, 0x80,
0x00, 0x14, 0x6c, 0x7e, 0x40, 0x80, 0x70, 0x22,
0x01, 0x00
};
static struct deauthentication_data deauthentication_test_1 = {
.frame = deauthentication_data_1,
.frame_len = sizeof(deauthentication_data_1),
.duration = 314,
.dest = { 0x00, 0x0f, 0xb5, 0x88, 0xac, 0x82 },
.src = { 0x00, 0x14, 0x6c, 0x7e, 0x40, 0x80 },
.bssid = { 0x00, 0x14, 0x6c, 0x7e, 0x40, 0x80 },
.fragment_number = 0,
.sequence_number = 551,
};
static void deauthentication_test(const void *data)
{
const struct deauthentication_data *test = data;
const struct mmpdu_header *mpdu;
mpdu = mpdu_validate(test->frame, test->frame_len);
assert(mpdu);
assert(mpdu->fc.type == MPDU_TYPE_MANAGEMENT);
assert(mpdu->fc.subtype == MPDU_MANAGEMENT_SUBTYPE_DEAUTHENTICATION);
assert(mpdu->fc.protocol_version == 0x00);
assert(L_LE16_TO_CPU(mpdu->duration) == test->duration);
assert(!memcmp(mpdu->address_1, test->dest, 6));
assert(!memcmp(mpdu->address_2, test->src, 6));
assert(!memcmp(mpdu->address_3, test->bssid, 6));
assert(L_LE16_TO_CPU(mpdu->fragment_number) == test->fragment_number);
assert(MPDU_SEQUENCE_NUMBER(*mpdu) == test->sequence_number);
}
struct test_frame_data {
const uint8_t *data;
size_t len;
bool good;
};
static const uint8_t probe_req_good1[] = {
/* Header */
0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x02, 0x00,
0x00, 0x00, 0x03, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x50, 0x64,
/*
* SSID, Supported Rates, Extended Supported Rates, DSSS Parameter Set,
* HT Capabilities, Vendor Specific, Vendor Specific
*/
0x00, 0x05, 0x74, 0x65, 0x73, 0x74, 0x31, 0x01, 0x08, 0x02, 0x04, 0x0b,
0x16, 0x0c, 0x12, 0x18, 0x24, 0x32, 0x04, 0x30, 0x48, 0x60, 0x6c, 0x03,
0x01, 0x06, 0x2d, 0x1a, 0x7e, 0x10, 0x1b, 0xff, 0xff, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xdd, 0x69, 0x00, 0x50, 0xf2, 0x04,
0x10, 0x4a, 0x00, 0x01, 0x10, 0x10, 0x3a, 0x00, 0x01, 0x00, 0x10, 0x08,
0x00, 0x02, 0x31, 0x48, 0x10, 0x47, 0x00, 0x10, 0xd9, 0xec, 0x65, 0xb2,
0x32, 0xe4, 0x53, 0x8d, 0xb2, 0x6c, 0x3f, 0x2b, 0x86, 0xf7, 0xa8, 0xd5,
0x10, 0x54, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x10, 0x3c, 0x00, 0x01, 0x03, 0x10, 0x02, 0x00, 0x02, 0x00, 0x00, 0x10,
0x09, 0x00, 0x02, 0x00, 0x00, 0x10, 0x12, 0x00, 0x02, 0x00, 0x00, 0x10,
0x21, 0x00, 0x01, 0x20, 0x10, 0x23, 0x00, 0x01, 0x20, 0x10, 0x24, 0x00,
0x01, 0x20, 0x10, 0x11, 0x00, 0x01, 0x20, 0x10, 0x49, 0x00, 0x06, 0x00,
0x37, 0x2a, 0x00, 0x01, 0x20, 0xdd, 0x11, 0x50, 0x6f, 0x9a, 0x09, 0x02,
0x02, 0x00, 0x25, 0x00, 0x06, 0x05, 0x00, 0x58, 0x58, 0x04, 0x51, 0x01,
};
static const struct test_frame_data probe_req_good1_data =
{ probe_req_good1, sizeof(probe_req_good1), true };
static const uint8_t probe_req_good2[] = {
/* Header */
0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x02, 0x00,
0x00, 0x00, 0x03, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x50, 0x64,
/* SSID, Supported Rates, Extended Supported Rates */
0x00, 0x05, 0x74, 0x65, 0x73, 0x74, 0x31, 0x01, 0x08, 0x02, 0x04, 0x0b,
0x16, 0x0c, 0x12, 0x18, 0x24, 0x32, 0x04, 0x30, 0x48, 0x60, 0x6c,
};
static const struct test_frame_data probe_req_good2_data =
{ probe_req_good2, sizeof(probe_req_good2), true };
static const uint8_t probe_req_ie_out_of_order1[] = {
/* Header */
0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x02, 0x00,
0x00, 0x00, 0x03, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x50, 0x64,
/* SSID, Extended Supported Rates, Supported Rates */
0x00, 0x05, 0x74, 0x65, 0x73, 0x74, 0x31, 0x32, 0x04, 0x30, 0x48, 0x60,
0x6c, 0x01, 0x08, 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24,
};
static const struct test_frame_data probe_req_ie_out_of_order1_data = {
probe_req_ie_out_of_order1, sizeof(probe_req_ie_out_of_order1), true
};
static const uint8_t probe_req_ie_duplicate1[] = {
/* Header */
0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x02, 0x00,
0x00, 0x00, 0x03, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x50, 0x64,
/* SSID, SSID, Supported Rates, Extended Supported Rates */
0x00, 0x05, 0x74, 0x65, 0x73, 0x74, 0x31, 0x00, 0x05, 0x74, 0x65, 0x73,
0x74, 0x32, 0x01, 0x08, 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24,
0x32, 0x04, 0x30, 0x48, 0x60, 0x6c,
};
static const struct test_frame_data probe_req_ie_duplicate1_data = {
probe_req_ie_duplicate1, sizeof(probe_req_ie_duplicate1), false
};
static const uint8_t probe_req_ie_out_of_order2[] = {
0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xda, 0xa1,
0x19, 0x11, 0xec, 0x70, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x50, 0x25,
0x00, 0x00, 0x01, 0x04, 0x02, 0x04, 0x0b, 0x16, 0x32, 0x08, 0x0c, 0x12,
0x18, 0x24, 0x30, 0x48, 0x60, 0x6c, 0x03, 0x01, 0x06, 0x2d, 0x1a, 0x6e,
0x01, 0x03, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xdd, 0x07, 0x00, 0x50, 0xf2, 0x08, 0x00, 0x01, 0x00, 0x7f, 0x05,
0x00, 0x00, 0x0a, 0x02, 0x01,
};
static const struct test_frame_data probe_req_ie_out_of_order2_data = {
probe_req_ie_out_of_order2, sizeof(probe_req_ie_out_of_order2), true
};
static const uint8_t assoc_rsp_ie_ooo_tolerated_dup[] = {
/* Association Response Flags (24 bytes)*/
0x10, 0x00, 0x24, 0x00, 0xe8, 0x8d, 0xa6, 0x77, 0xa7, 0x37, 0x0a, 0x58,
0x28, 0x16, 0x65, 0x42, 0x0a, 0x58, 0x28, 0x16, 0x65, 0x42, 0x40, 0x14,
/* Fixed Parameters (6 bytes) */
0x31, 0x19, 0x00, 0x00, 0x08, 0xc0,
/* Tagged parameters: 364 bytes */
/* Support Rates [1] (10 bytes) */
0x01, 0x08, 0x8c, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6c,
/* Vendor Specific [221] (12 bytes) */
0xdd, 0x0a, 0x50, 0x6f, 0x9a, 0x1b, 0x06, 0x01, 0x20, 0x07, 0x01, 0x03,
/* RM Enabled Capabilities [70] (7 bytes) */
0x46, 0x05, 0x02, 0x00, 0x00, 0x00, 0x00,
/* Vendor Specific [221] (26 bytes) */
0xdd, 0x18, 0x00, 0x50, 0xf2, 0x02, 0x01, 0x01, 0x86, 0x00, 0x03, 0xa4,
0x00, 0x00, 0x27, 0xa4, 0x00, 0x00, 0x42, 0x43, 0x5e, 0x00, 0x62, 0x32,
0x2f, 0x00,
/* HT Capabilities [45] (28 bytes) */
0x2d, 0x1a, 0xef, 0x09, 0x03, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18,
0x04, 0x87, 0x19, 0x00,
/* HT Information [61] (24 bytes)*/
0x3d, 0x16, 0x24, 0x05, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* Vendor Specific [221] (32 bytes) */
0xdd, 0x1e, 0x00, 0x90, 0x4c, 0x33, 0xef, 0x09, 0x03, 0xff, 0xff, 0xff,
0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x18, 0x04, 0x87, 0x19, 0x00,
/* Vendor Specific [221] (28 bytes) */
0xdd, 0x1a, 0x00, 0x90, 0x4c, 0x34, 0x24, 0x05, 0x06, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
/* BSS Max Idle Period [90] (5 bytes)*/
0x5a, 0x03, 0xe0, 0x01, 0x00,
/* VHT Capabilities [191] (14 bytes)*/
0xbf, 0x0c, 0xf5, 0x39, 0xc3, 0x33, 0x9a, 0xff, 0x30, 0x0c, 0x9a, 0xff,
0x30, 0x2c,
/* VHT Operation [192] (7 bytes) */
0xc0, 0x05, 0x01, 0x2a, 0x00, 0xfc, 0xff,
/* Extended: HE Capabilities 80211ax/D3.0 [256 + 35] (38 bytes) */
0xff, 0x24, 0x23, 0x05, 0x00, 0x08, 0x1a, 0x44, 0x10, 0x0c, 0x20, 0xce,
0x92, 0x6f, 0x1b, 0xaf, 0xd4, 0x11, 0x0c, 0x00, 0xaa, 0xff, 0xaa, 0xff,
0xaa, 0xff, 0xaa, 0xff, 0x3b, 0x1c, 0xc7, 0x71, 0x1c, 0xc7, 0x71, 0x1c,
0xc7, 0x71,
/* Extended: HE Operation 80211ax/D3.0 [256 + 36] (9 bytes) */
0xff, 0x07, 0x24, 0xf4, 0x3f, 0x00, 0x17, 0xfc, 0xff,
/* Extended: Spatial Reuse Parameter Set [256 + 39] (4 bytes) */
0xff, 0x02, 0x27, 0x03,
/* Extended: MU EDCA Parameter Set [256 + 38] (16 bytes) */
0xff, 0x0e, 0x26, 0x06, 0x00, 0xff, 0x00, 0x20, 0xff, 0x00, 0x40, 0xff,
0x00, 0x60, 0xff, 0x00,
/* Extended Capabilities [127] (13 bytes) */
0x7f, 0x0b, 0x00, 0x00, 0x08, 0x80, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40,
0x00,
/* Vendor Specific [221] (9 bytes) */
0xdd, 0x07, 0x00, 0x0c, 0x43, 0x00, 0x00, 0x00, 0x00,
/* Vendor Specific [221] (35 bytes) */
0xdd, 0x21, 0x00, 0x0c, 0xe7, 0x00, 0x00, 0x00, 0x00, 0xbf, 0x0c, 0xb1,
0x01, 0xc0, 0x33, 0x2a, 0xff, 0x92, 0x04, 0x2a, 0xff, 0x92, 0x04, 0xc0,
0x05, 0x00, 0x00, 0x00, 0x2a, 0xff, 0xc3, 0x03, 0x01, 0x02, 0x02,
/* Vendor Specific [221] (9 bytes) */
0xdd, 0x07, 0x50, 0x6f, 0x9a, 0x16, 0x01, 0x01, 0x00,
/* RSN Extension [244] (3 bytes) */
0xf4, 0x01, 0x20,
/* Vendor Specific [221] (9 bytes) */ /* Legal duplicate IE */
0xdd, 0x07, 0x50, 0x6f, 0x9a, 0x16, 0x01, 0x01, 0x00,
/* FILS Indication [240] (4 bytes) */
0xf0, 0x02, 0x00, 0x00,
/* RSN Extension [244] (3 bytes) */ /* TECHNICALLY ILLEGAL cloned ie */
0xf4, 0x01, 0x20,
/* Vendor Specific [221] (19 bytes) */
0xdd, 0x11, 0x00, 0x0c, 0xe7, 0x01, 0x00, 0x00, 0x00, 0x04, 0x08, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const struct test_frame_data assoc_rsp_ie_ooo_tolerated_dup_data = {
assoc_rsp_ie_ooo_tolerated_dup, sizeof(assoc_rsp_ie_ooo_tolerated_dup), true
};
static void ie_order_test(const void *data)
{
const struct test_frame_data *frame = data;
assert(!!mpdu_validate(frame->data, frame->len) == frame->good);
}
static void ie_sort_test(const void *data)
{
static uint8_t ie_fils_session[] = { IE_TYPE_EXTENSION, 1, 4 };
static uint8_t ie_mde[] = { IE_TYPE_MOBILITY_DOMAIN, 0 };
static uint8_t ie_ssid[] = { IE_TYPE_SSID, 0 };
static uint8_t ie_rsn[] = { IE_TYPE_RSN, 0 };
struct iovec ies[64];
size_t n_ies = 0;
uint8_t *ie;
/* Make up some IEs, only the first 3 bytes matter */
ies[n_ies].iov_base = ie_fils_session;
ies[n_ies++].iov_len = sizeof(ie_fils_session);
ies[n_ies].iov_base = ie_mde;
ies[n_ies++].iov_len = sizeof(ie_mde);
ies[n_ies].iov_base = ie_ssid;
ies[n_ies++].iov_len = sizeof(ie_ssid);
ies[n_ies].iov_base = ie_rsn;
ies[n_ies++].iov_len = sizeof(ie_rsn);
mpdu_sort_ies(MPDU_MANAGEMENT_SUBTYPE_ASSOCIATION_REQUEST, ies, n_ies);
ie = ies[0].iov_base;
assert(ie[0] == IE_TYPE_SSID);
ie = ies[1].iov_base;
assert(ie[0] == IE_TYPE_RSN);
ie = ies[2].iov_base;
assert(ie[0] == IE_TYPE_MOBILITY_DOMAIN);
ie = ies[3].iov_base;
assert(ie[0] == IE_TYPE_EXTENSION && ie[2] == 4);
}
int main(int argc, char *argv[])
{
l_test_init(&argc, &argv);
l_test_add("/Management Frame/Deauthentication Frame 1",
deauthentication_test, &deauthentication_test_1);
l_test_add("/IE order/Good 1", ie_order_test, &probe_req_good1_data);
l_test_add("/IE order/Good 2", ie_order_test, &probe_req_good2_data);
l_test_add("/IE order/Good (Out of Order IE) 1", ie_order_test,
&probe_req_ie_out_of_order1_data);
l_test_add("/IE order/Bad (Duplicate + Out of Order IE) 1",
ie_order_test,
&probe_req_ie_duplicate1_data);
l_test_add("/IE order/Ugly (Duplicate + Out of Order IE) 2",
ie_order_test,
&assoc_rsp_ie_ooo_tolerated_dup_data);
l_test_add("/IE order/Good (Out of Order IE) 2", ie_order_test,
&probe_req_ie_out_of_order2_data);
l_test_add("/IE order/Sorting", ie_sort_test, NULL);
return l_test_run();
}
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