2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * Copyright (c) 2010 Advanced Micro Devices, Inc.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;
10 * redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution;
13 * neither the name of the copyright holders nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 * Authors: Nathan Binkert
38 #include "base/cprintf.hh"
39 #include "base/inet.hh"
40 #include "base/types.hh"
47 memset(data
, 0, ETH_ADDR_LEN
);
50 EthAddr::EthAddr(const uint8_t ea
[ETH_ADDR_LEN
])
55 EthAddr::EthAddr(const eth_addr
&ea
)
60 EthAddr::EthAddr(const std::string
&addr
)
66 EthAddr::operator=(const eth_addr
&ea
)
73 EthAddr::operator=(const std::string
&addr
)
80 EthAddr::parse(const std::string
&addr
)
82 // the hack below is to make sure that ETH_ADDR_LEN is 6 otherwise
83 // the sscanf function won't work.
84 int bytes
[ETH_ADDR_LEN
== 6 ? ETH_ADDR_LEN
: -1];
85 if (sscanf(addr
.c_str(), "%x:%x:%x:%x:%x:%x", &bytes
[0], &bytes
[1],
86 &bytes
[2], &bytes
[3], &bytes
[4], &bytes
[5]) != ETH_ADDR_LEN
) {
87 memset(data
, 0xff, ETH_ADDR_LEN
);
91 for (int i
= 0; i
< ETH_ADDR_LEN
; ++i
) {
92 if (bytes
[i
] & ~0xff) {
93 memset(data
, 0xff, ETH_ADDR_LEN
);
102 EthAddr::string() const
110 operator==(const EthAddr
&left
, const EthAddr
&right
)
112 return memcmp(left
.bytes(), right
.bytes(), ETH_ADDR_LEN
);
116 operator<<(ostream
&stream
, const EthAddr
&ea
)
118 const uint8_t *a
= ea
.addr();
119 ccprintf(stream
, "%x:%x:%x:%x:%x:%x", a
[0], a
[1], a
[2], a
[3], a
[4], a
[5]);
124 IpAddress::string() const
132 operator==(const IpAddress
&left
, const IpAddress
&right
)
134 return left
.ip() == right
.ip();
138 operator<<(ostream
&stream
, const IpAddress
&ia
)
140 uint32_t ip
= ia
.ip();
141 ccprintf(stream
, "%x.%x.%x.%x",
142 (uint8_t)(ip
>> 24), (uint8_t)(ip
>> 16),
143 (uint8_t)(ip
>> 8), (uint8_t)(ip
>> 0));
148 IpNetmask::string() const
156 operator==(const IpNetmask
&left
, const IpNetmask
&right
)
158 return (left
.ip() == right
.ip()) &&
159 (left
.netmask() == right
.netmask());
163 operator<<(ostream
&stream
, const IpNetmask
&in
)
165 ccprintf(stream
, "%s/%d", (const IpAddress
&)in
, in
.netmask());
170 IpWithPort::string() const
178 operator==(const IpWithPort
&left
, const IpWithPort
&right
)
180 return (left
.ip() == right
.ip()) && (left
.port() == right
.port());
184 operator<<(ostream
&stream
, const IpWithPort
&iwp
)
186 ccprintf(stream
, "%s:%d", (const IpAddress
&)iwp
, iwp
.port());
191 cksum(const IpPtr
&ptr
)
193 int sum
= ip_cksum_add(ptr
->bytes(), ptr
->hlen(), 0);
194 return ip_cksum_carry(sum
);
198 __tu_cksum(const IpPtr
&ip
)
200 int tcplen
= ip
->len() - ip
->hlen();
201 int sum
= ip_cksum_add(ip
->payload(), tcplen
, 0);
202 sum
= ip_cksum_add(&ip
->ip_src
, 8, sum
); // source and destination
203 sum
+= htons(ip
->ip_p
+ tcplen
);
204 return ip_cksum_carry(sum
);
208 cksum(const TcpPtr
&tcp
)
209 { return __tu_cksum(IpPtr(tcp
.packet())); }
212 cksum(const UdpPtr
&udp
)
213 { return __tu_cksum(IpPtr(udp
.packet())); }
216 IpHdr::options(vector
<const IpOpt
*> &vec
) const
220 const uint8_t *data
= bytes() + sizeof(struct ip_hdr
);
221 int all
= hlen() - sizeof(struct ip_hdr
);
223 const IpOpt
*opt
= (const IpOpt
*)data
;
224 int len
= opt
->len();
237 TcpHdr::options(vector
<const TcpOpt
*> &vec
) const
241 const uint8_t *data
= bytes() + sizeof(struct tcp_hdr
);
242 int all
= off() - sizeof(struct tcp_hdr
);
244 const TcpOpt
*opt
= (const TcpOpt
*)data
;
245 int len
= opt
->len();
258 TcpOpt::sack(vector
<SackRange
> &vec
) const
262 const uint8_t *data
= bytes() + sizeof(struct tcp_hdr
);
263 int all
= len() - offsetof(tcp_opt
, opt_data
.sack
);
265 const uint16_t *sack
= (const uint16_t *)data
;
266 int len
= sizeof(uint16_t) * 2;
272 vec
.push_back(RangeIn(ntohs(sack
[0]), ntohs(sack
[1])));
281 hsplit(const EthPacketPtr
&ptr
)
287 split_point
= ip
.pstart();
291 split_point
= tcp
.pstart();
295 split_point
= udp
.pstart();