diff options
author | Nathan Binkert <binkertn@umich.edu> | 2004-09-20 10:43:53 -0400 |
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committer | Nathan Binkert <binkertn@umich.edu> | 2004-09-20 10:43:53 -0400 |
commit | a58b834c8e333385f9be37eb4d343d70f8177613 (patch) | |
tree | 8f9d8224a37617ae697e3c3620f7dbfad11c34dd /base/crc.hh | |
parent | bb59e2e7a3ec7e599dac92cfc780c7fdde2ad286 (diff) | |
download | gem5-a58b834c8e333385f9be37eb4d343d70f8177613.tar.xz |
Clean up network header stuff and make it more generic. Use
libdnet when we can instead of our own home grown stuff.
SConscript:
separate the crc code into its own file
base/inet.cc:
move the crc stuff to crc.cc
add generic code for calculating ip/tcp/udp checksums
base/inet.hh:
- move crc stuff to crc.hh
- #include all of the libdnet stuff. (this makes base/inet.hh the
only file you need to include if you want to use this kind of stuff.)
- Wrap some of the libdnet structs to get easier access to structure
members. These wrappers will automatically deal with masking/shifting/
byte-swapping.
base/refcnt.hh:
If one derives from RefCountingPtr, they should have access to
the internal data pointer.
build/SConstruct:
make #include of dnet stuff work
dev/etherlink.cc:
dev/ethertap.cc:
dev/ethertap.hh:
EtherPacket -> PacketData
dev/etherpkt.cc:
EtherPacket -> PacketData
add a function for populating extra info about a packet.
Basically just gives pointers to ethernet/ip/tcp/udp headers
if they exist.
dev/etherpkt.hh:
EtherPacket -> PacketData
remove most of the packet header stuff from teh PacketData
class and just add a few generic functions for grabbing various
headers that may exist in the packet. The old functionality is
contained in the headers.
dev/ns_gige.cc:
- IP -> Ip, UDP -> Udp, TCP ->Tcp when used in variable names
- get rid of our own byte swapping functions.
- whack checksum code and use libdnet version.
- Get pointers to the various packet headers and grab info from
those headers. (The byte swapping in the headers now.)
- Add stats for Udp Checksums
dev/ns_gige.hh:
use libdnet for checksum code.
IP -> Ip, TCP -> Tcp in variable names
add stats for UDP checksums
--HG--
extra : convert_revision : 96c4160e1967b7c0090acd456df4a76e1f3aab53
Diffstat (limited to 'base/crc.hh')
-rw-r--r-- | base/crc.hh | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/base/crc.hh b/base/crc.hh new file mode 100644 index 000000000..bd6719b98 --- /dev/null +++ b/base/crc.hh @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2002-2003 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __BASE_CRC_HH__ +#define __BASE_CRC_HH__ + +#include "sim/host.hh" + +uint32_t crc32be(const uint8_t *buf, size_t len); +uint32_t crc32le(const uint8_t *buf, size_t len); + +#endif // __BASE_CRC_HH__ |