14357b0b44
Currently has three clients that continuously create new UDP/TCP/ICMP connections through the NIC router with NAT to the outer world and they get never closed. A fourth client does normal ping through the same domain to the outer world that must succeed even after the RAM quota of the other session at the router is exhausted. The test is restricted to Qemu to not being at risk to flood real networks. Issue #2857
83 lines
1.8 KiB
C++
83 lines
1.8 KiB
C++
/*
|
|
* \brief Ipv4 address combined with a subnet prefix length
|
|
* \author Martin Stein
|
|
* \date 2017-10-12
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2017 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#ifndef _IPV4_ADDRESS_PREFIX_H_
|
|
#define _IPV4_ADDRESS_PREFIX_H_
|
|
|
|
/* Genode includes */
|
|
#include <net/ipv4.h>
|
|
|
|
namespace Net { class Ipv4_address_prefix; }
|
|
|
|
|
|
struct Net::Ipv4_address_prefix
|
|
{
|
|
Ipv4_address address { };
|
|
Genode::uint8_t prefix;
|
|
|
|
Ipv4_address_prefix(Ipv4_address address,
|
|
Ipv4_address subnet_mask);
|
|
|
|
Ipv4_address_prefix() : prefix(32) { }
|
|
|
|
bool valid() const { return address.valid() || prefix == 0; }
|
|
|
|
void print(Genode::Output &output) const;
|
|
|
|
bool prefix_matches(Ipv4_address const &ip) const;
|
|
|
|
Ipv4_address subnet_mask() const;
|
|
|
|
Ipv4_address broadcast_address() const;
|
|
|
|
bool operator != (Ipv4_address_prefix const &other) const
|
|
{
|
|
return prefix != other.prefix ||
|
|
address != other.address;
|
|
}
|
|
};
|
|
|
|
|
|
namespace Genode {
|
|
|
|
inline size_t ascii_to(char const *s, Net::Ipv4_address_prefix &result);
|
|
}
|
|
|
|
|
|
Genode::size_t Genode::ascii_to(char const *s, Net::Ipv4_address_prefix &result)
|
|
{
|
|
/* read the leading IPv4 address, fail if there's no address */
|
|
Net::Ipv4_address_prefix buf;
|
|
size_t read_len = ascii_to(s, buf.address);
|
|
if (!read_len) {
|
|
return 0; }
|
|
|
|
/* check for the following slash */
|
|
s += read_len;
|
|
if (*s != '/') {
|
|
return 0; }
|
|
read_len++;
|
|
s++;
|
|
|
|
/* read the prefix, fail if there's no prefix */
|
|
size_t prefix_len = ascii_to_unsigned(s, buf.prefix, 10);
|
|
if (!prefix_len) {
|
|
return 0; }
|
|
|
|
/* fill result and return read length */
|
|
result = buf;
|
|
return read_len + prefix_len;
|
|
}
|
|
|
|
#endif /* _IPV4_ADDRESS_PREFIX_H_ */
|