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HARP | Host ATM Research Platform
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HARP 3
What is this stuff?
-------------------
The Advanced Networking Group (ANG) at the Minnesota Supercomputer Center,
Inc. (MSCI), as part of its work on the MAGIC Gigabit Testbed, developed
the Host ATM Research Platform (HARP) software, which allows IP hosts to
communicate over ATM networks using standard protocols. It is intended to
be a high-quality platform for IP/ATM research.
HARP provides a way for IP hosts to connect to ATM networks. It supports
standard methods of communication using IP over ATM. A host's standard IP
software sends and receives datagrams via a HARP ATM interface. HARP provides
functionality similar to (and typically replaces) vendor-provided ATM device
driver software.
HARP includes full source code, making it possible for researchers to
experiment with different approaches to running IP over ATM. HARP is
self-contained; it requires no other licenses or commercial software packages.
HARP implements support for the IETF Classical IP model for using IP over ATM
networks, including:
o IETF ATMARP address resolution client
o IETF ATMARP address resolution server
o IETF SCSP/ATMARP server
o UNI 3.1 and 3.0 signalling protocols
o Fore Systems's SPANS signalling protocol
What's supported
----------------
The following are supported by HARP 3:
o ATM Host Interfaces
- FORE Systems, Inc. SBA-200 and SBA-200E ATM SBus Adapters
- FORE Systems, Inc. PCA-200E ATM PCI Adapters
- Efficient Networks, Inc. ENI-155p ATM PCI Adapters
o ATM Signalling Protocols
- The ATM Forum UNI 3.1 signalling protocol
- The ATM Forum UNI 3.0 signalling protocol
- The ATM Forum ILMI address registration
- FORE Systems's proprietary SPANS signalling protocol
- Permanent Virtual Channels (PVCs)
o IETF "Classical IP and ARP over ATM" model
- RFC 1483, "Multiprotocol Encapsulation over ATM Adaptation Layer 5"
- RFC 1577, "Classical IP and ARP over ATM"
- RFC 1626, "Default IP MTU for use over ATM AAL5"
- RFC 1755, "ATM Signaling Support for IP over ATM"
- RFC 2225, "Classical IP and ARP over ATM"
- RFC 2334, "Server Cache Synchronization Protocol (SCSP)"
- Internet Draft draft-ietf-ion-scsp-atmarp-00.txt,
"A Distributed ATMARP Service Using SCSP"
o ATM Sockets interface
- The file atm-sockets.txt contains further information
What's not supported
--------------------
The following major features of the above list are not currently supported:
o UNI point-to-multipoint support
o Driver support for Traffic Control/Quality of Service
o SPANS multicast and MPP support
o SPANS signalling using Efficient adapters
This software was developed under the sponsorship of the Defense Advanced
Research Projects Agency (DARPA).
Reviewed (lightly) by: phk
Submitted by: Network Computing Services, Inc.
when it returns NULL to indicate failure, it will also free the memory
that was passed to it, if that was non-null.
This does not change the semantics of realloc.
A second commit will be done to commit the conversion of those places in
the code that can safely use this to avoid memory leaks when confronted
with low memory situations.
Beaten-to-death-but-finally-approved-in: -current
- Fix some style errors I made back in 1995.
- Add a new flavor of the err(3) family, which takes an explicit
errno argument rather than implicitly examining errno. This
will make it easier to use these functions in conjunction with
modern library interfaces that return an errno value explicitly.
standard places ("/etc/objformat", ${OBJFORMAT}, argv) for an
indication of the user's preferred object file format. This
consolidates some code that was starting to be duplicated in more
and more places.
Use the new function in ldconfig.
Note: I don't think that gcc should use getobjformat(), even though
it could. The compiler should limit itself to functions that are
widespread, to ease porting and cross-compilation.
externed in netdb.h - where all of its #define values
live. If anything requires h_errno here (nothing in
/usr/src seems to) it's almost definitely broken.
Use them to `make gcc -Wformat' check formats for all printf-like
and scanf-like functions in /usr/src except for the err()/warn()
family. err() isn't quite printf-like since its format arg can
legitimately be NULL. syslog() isn't quite printf-like, but gcc
already accepts %m, even for plain printf() when it shouldn't.
as threatened in the 4-5 year old comment. Most of the change is
in <machine/ansi.h>; this commit just removes cruft for the strict
ANSI case. 64-bit types couldn't actually be defined using
__attribute__(()) in gcc-2.4, since attribute names in the
implementation namespace only became available in gcc-2.7. I've
probably just broken gcc-2.6 support by using the gcc-2.7 names
unconditionally.
<resolv.h>. This breaks user ppp at least, and goodness knows how
many ports. :-(
This a bit of a hack, but is probably simpler than duplicating the
typedefs and protecting them from each other.
Also, remove some temporary XXX notes that I forgot to remove before.
since it has far wider impact than hostname lookups (including passwords).
Note that this has more ugly symbol hiding and binary compatability hacks
that can go away the second we bump majors.
Obtained from: Mostly from diff against ISC bind-8.1.2 sources
instead of long long and unsigned long long. Really they should be
quad_t and u_quad_t, but that would require sys/types.h and this
header only includes machine/types.h. The difference here is that
int64_t and u_int64_t on alpha are long and unsigned long, not
long long etc. This is required to pass gcc's type checking where
long != long long even though they are the same size of alpha.
about spaces and tabs.
The externs in the static inline functions remain 'cause (a) they're
required; and (b) I can't find any gcc -W* cases where they generate
warnings.
test for __isthreaded before calling the lock/unlock functions to
try to save some performance. The _THREAD_SAFE case should become the
default, but since it tests for a global variable in libc, people won't
be able to build -current on pre-3.0 systems unless the default leaves
it out. Such is life.
_KPOSIX_PRIORITY_SCHEDULING options to work. Changes:
Change all "posix4" to "p1003_1b". Misnamed files are left
as "posix4" until I'm told if I can simply delete them and add
new ones;
Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux;
Add man pages for _POSIX_PRIORITY_SCHEDULING system calls;
Add options to LINT;
Minor fixes to P1003_1B code during testing.
Changes to support building with _POSIX_SOURCE set to 199309L:
1. Add sys/_posix.h to handle those preprocessor defs that POSIX
says have effects when defined before including any header files;
2. Change POSIX4_VISIBLE back to _POSIX4_VISIBLE
3. Add _POSIX4_VISIBLE_HISTORICALLY for pre-existing BSD features now
defined in POSIX. These show up when:
_POSIX_SOURCE and _POSIX_C_SOURCE are not set or
_POSIX_C_SOURCE is set >= 199309L
and vanish when:
_POSIX_SOURCE is set or _POSIX_C_SOURCE is < 199309L.
4. Explain these in man 9 posix4;
5. Include _posix.h and conditionalize on new feature test.
is generated. It must be installed in both /usr/include/rpc/ and
/usr/include/rpcsvc/ for historical reasons. The generated version
was once missing ANSI prototypes because the wrong flags were passed
to rpcgen, but that is fixed now. The committed version had `#pragma
indent' which gratuitously broke K&R support. Apart from this, all
versions before and after this commit are identical.
Move sigjmp_buf and jmp_buf structure definitions to machine/setjmp.h
so that i386 can continue to use int as the basic register type and
alpha can use long. Bruce was concerned about possible differing
alignment. I've left the definition of _JBLEN in machine/setjmp.h
even though Bruce's example used the number directly. I don't know if
any other code relies on _JBLEN, so I left it to avoid potential
breakage.
Note: this may cause some problems in a few cases. With very old versions
of rpcgen, if you defined a procedure called foo, then rpcen would create
client stubs for function foo_1() and server stubs _also_ with function
foo_1(). This only worked because of the lack of ANSI prototypes: the
client side stub takes different arguments than the server side stub.
(The client side takes a CLIENT * handle, while the server side wants
an svc_req *.)
To fix this conflict, rpcgen in ANSI mode generates foo_1() for the client
and foo_1_svc() for the server. RPC server code that depends on the old
behavior might break because of this. (Fixing it is just a matter of
adding the _svc suffix onto the server procedure names.)
isn't gratuitously broken. This also prevents ANSI compilers from
recognizing the pragma as a request to run /usr/games/hack...
FreeBSD Ids should be in comments or rcsids, not in `#pragma ident's
(which are equivalent to comments when compiled by gcc), and the
only FreeBSD change in this file seems to be adding the Id.
definitions for architectures that we don't have libc MD source for.
Change 'int' to 'long' in sigjmp_buf and jmp_buf structures so
that they are suitable for the register size on both i386 and alpha.
Although FreeBSD defines these structures differently to NetBSD,
the element size is now the same.
If Bruce doesn't like this [8-)], we'll need to add a typedef to
each <machine/setjmp.h> and use that in <setjmp.h>.
RFC 1350 isn't very explicit about this, but the use of signed
integers doesn't seem to make sense.
Should be in 2.2.5, but is probably too late to be verified completely.
PR: bin/4502
Submitted by: Dirk Nehrling <nerle@pdv.de> via Lars Koeller
sys/poll.h). Just provide a link, it's close enough. :-) In an ideal
world the prototype for poll() would be in <poll.h> but some code seems
to expect it in <sys/poll.h>, so we can't win there.
modify the original `no modifications' copyright message, and i've
included his mail into the source file.
The common localization functions between strptime(3) and strftime(3)
have been broken out into timelocal.[ch].
implement (better) falback code inside srandomdev() itself.
Change return type from int to void (binary compatibility surprisely
achieved). Userland code will be changed soon.
Secure RPC import I've been threatening.
This step adds some necessary protocol definition files and headers to
rpcsvc, including the ones needed for NIS+.
Reviewed by: Mark Murray
conflict with the kernel visible one. Make the new stuff not visible if
_ANSI_SOURCE or _POSIX_SOURCE is defined (!) because the new things are
not part of the base 1003.1-1990 standard (or ansi).
Use _BSD_OFF_T_ instead of off_t so that we're still self-sufficent.
Copied the ftruncate/lseek()/mmap()/truncate() redeclaration hacks
from <sys/types.h> so that things depending on them don't break.
cause noise.
Duplicated the lseek() redeclaration hack for all functions involving
off_t's (ftruncate(), mmap() and truncate()) to help broken programs
work.
