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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright (C) 2013 Intel Corporation. All rights reserved.
systemd 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.
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdlib.h>
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include "dhcp-protocol.h"
#include "sd-dhcp-client.h"
static void test_request_basic(void)
{
sd_dhcp_client *client;
client = sd_dhcp_client_new();
assert(client);
assert(sd_dhcp_client_set_request_option(NULL, 0) == -EINVAL);
assert(sd_dhcp_client_set_request_address(NULL, NULL) == -EINVAL);
assert(sd_dhcp_client_set_index(NULL, 0) == -EINVAL);
assert(sd_dhcp_client_set_index(client, 15) == 0);
assert(sd_dhcp_client_set_index(client, -42) == -EINVAL);
assert(sd_dhcp_client_set_index(client, -1) == 0);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_SUBNET_MASK) == -EEXIST);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_ROUTER) == -EEXIST);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_HOST_NAME) == -EEXIST);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_DOMAIN_NAME) == -EEXIST);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_DOMAIN_NAME_SERVER)
== -EEXIST);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_NTP_SERVER) == -EEXIST);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_PAD) == -EINVAL);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_END) == -EINVAL);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_MESSAGE_TYPE) == -EINVAL);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_OVERLOAD) == -EINVAL);
assert(sd_dhcp_client_set_request_option(client,
DHCP_OPTION_PARAMETER_REQUEST_LIST)
== -EINVAL);
assert(sd_dhcp_client_set_request_option(client, 33) == 0);
assert(sd_dhcp_client_set_request_option(client, 33) == -EEXIST);
assert(sd_dhcp_client_set_request_option(client, 44) == 0);
}
static uint16_t client_checksum(void *buf, int len)
{
uint32_t sum;
uint16_t *check;
int i;
uint8_t *odd;
sum = 0;
check = buf;
for (i = 0; i < len / 2 ; i++)
sum += check[i];
if (len & 0x01) {
odd = buf;
sum += odd[len];
}
return ~((sum & 0xffff) + (sum >> 16));
}
static void test_checksum(void)
{
uint8_t buf[20] = {
0x45, 0x00, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
0x40, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xff, 0xff, 0xff, 0xff
};
uint8_t check[2] = {
0x78, 0xae
};
uint16_t *val = (uint16_t *)check;
assert(client_checksum(&buf, 20) == *val);
}
int main(int argc, char *argv[])
{
test_request_basic();
test_checksum();
return 0;
}
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