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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2019 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ctype.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <config.h>
#include <sstream>
#include "cec-compliance.h"
int testFuzzing(struct node &node, unsigned me, unsigned la)
{
printf("test fuzzing CEC local LA %d (%s) to remote LA %d (%s):\n\n",
me, la2s(me), la, la2s(la));
if (node.remote[la].in_standby) {
announce("The remote device is in standby. It should be powered on when fuzzing. Aborting.");
return 0;
}
if (!node.remote[la].has_power_status) {
announce("The device didn't support Give Device Power Status.");
announce("Assuming that the device is powered on.");
}
unsigned int cnt = 0;
for (;;) {
cec_msg msg;
__u8 cmd;
unsigned offset = 2;
cec_msg_init(&msg, me, la);
msg.msg[1] = cmd = random() & 0xff;
if (msg.msg[1] == CEC_MSG_STANDBY)
continue;
msg.len = (random() & 0xf) + 2;
if (msg.msg[1] == CEC_MSG_VENDOR_COMMAND_WITH_ID &&
node.remote[la].vendor_id != CEC_VENDOR_ID_NONE) {
msg.len += 3;
offset += 3;
msg.msg[2] = (node.remote[la].vendor_id & 0xff0000) >> 16;
msg.msg[3] = (node.remote[la].vendor_id & 0xff00) >> 8;
msg.msg[4] = node.remote[la].vendor_id & 0xff;
}
if (msg.len > CEC_MAX_MSG_SIZE)
continue;
const char *name = opcode2s(msg.msg[1]);
printf("Send message %u:", cnt);
for (unsigned int i = 0; i < offset; i++)
printf(" %02x", msg.msg[i]);
for (unsigned int i = offset; i < msg.len; i++) {
msg.msg[i] = random() & 0xff;
printf(" %02x", msg.msg[i]);
}
if (name)
printf(" (%s)", name);
printf(": ");
msg.reply = CEC_MSG_FEATURE_ABORT;
fail_on_test(!transmit_timeout(&node, &msg, 1200));
printf("%s", timed_out(&msg) ? "Timed out" : "Feature Abort");
if (cec_msg_status_is_abort(&msg)) {
__u8 abort_msg, reason;
cec_ops_feature_abort(&msg, &abort_msg, &reason);
fail_on_test(abort_msg != cmd);
switch (reason) {
case CEC_OP_ABORT_UNRECOGNIZED_OP:
printf(" (Unrecognized Op)");
break;
case CEC_OP_ABORT_UNDETERMINED:
printf(" (Undetermined)");
break;
case CEC_OP_ABORT_INVALID_OP:
printf(" (Invalid Op)");
break;
case CEC_OP_ABORT_NO_SOURCE:
printf(" (No Source)");
break;
case CEC_OP_ABORT_REFUSED:
printf(" (Refused)");
break;
case CEC_OP_ABORT_INCORRECT_MODE:
printf(" (Incorrect Mode)");
break;
default:
printf(" (0x%02x)\n", reason);
fail("Invalid reason\n");
break;
}
}
printf("\n");
if (++cnt % 10)
continue;
if (la == CEC_LOG_ADDR_BROADCAST)
continue;
cec_msg_init(&msg, me, la);
cec_msg_get_cec_version(&msg, true);
printf("Query CEC Version: ");
fail_on_test(!transmit_timeout(&node, &msg) || timed_out_or_abort(&msg));
printf("OK\n");
}
}
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