Jeremy,
I haven't tried SIMH 3.8.1nb1 on my Mac, but I suspect you have
permission problems accessing the pcap devices. My notes from my SIMH
installation describe a ChmodBPF script included with the libpcap
package that takes care of that:
Install the ChmodBPF system startup item to change the permission on
the BPF (BSD packet filter) devices (/dev/bpf*) to allow users in
the “admin” group to read from and write to the Ethernet network:
# mv ChmodBPF /Library/StartupItems/
Mac OS X must be restarted for ChmodBPF to take effect.
ChmodBPF is a directory:
$ ls -lR /Library/StartupItems/ChmodBPF
total 16
drwxr-xr-x 5 root wheel 170 Jun 1 2005 CVS
-rwxr-xr-x 1 root wheel 900 Oct 18 2004 ChmodBPF
-rw-r--r-- 1 root wheel 126 Oct 18 2004 StartupParameters.plist
/Library/StartupItems/ChmodBPF/CVS:
total 24
-rw-r--r-- 1 root wheel 99 Jun 1 2005 Entries
-rw-r--r-- 1 root wheel 17 Jun 1 2005 Repository
-rw-r--r-- 1 root wheel 49 Jun 1 2005 Root
The actual script that modifies the permissions is:
$ cat /Library/StartupItems/ChmodBPF/ChmodBPF
#! /bin/sh
. /etc/rc.common
StartService ()
{
#
# Unfortunately, Mac OS X's devfs is based on the old FreeBSD
# one, not the current one, so there's no way to configure it
# to create BPF devices with particular owners or groups.
# This startup item will make it owned by the admin group,
# with permissions rw-rw----, so that anybody in the admin
# group can use programs that capture or send raw packets.
#
# Change this as appropriate for your site, e.g. to make
# it owned by a particular user without changing the permissions,
# so only that user and the super-user can capture or send raw
# packets, or give it the permissions rw-r-----, so that
# only the super-user can send raw packets but anybody in the
# admin group can capture packets.
#
chgrp admin /dev/bpf*
chmod g+rw /dev/bpf*
}
StopService ()
{
return 0;
}
RestartService () { StartService; }
RunService "$1"
On my system, the /dev/bpf* devices look like this:
$ ls -l /dev/bpf*
crw-rw---- 1 root admin 23, 0 Oct 14 20:13 /dev/bpf0
crw-rw---- 1 root admin 23, 1 Oct 14 20:13 /dev/bpf1
crw-rw---- 1 root admin 23, 2 Oct 14 20:13 /dev/bpf2
crw-rw---- 1 root admin 23, 3 Oct 14 20:13 /dev/bpf3
If your /dev/bpf* devices already look like this, maybe your account
is not a member of the admin group. The "id" command will list your
groups:
$ id
uid=xxxx(baker) gid=xxx groups=xxx,98(_lpadmin),81(_appserveradm),
79(_appserverusr),105(com.apple.sharepoint.group.4),80(admin)
Larry Baker
US Geological Survey
650-329-5608
[email protected]
On 28 Oct 2011, at 9:00 AM, [email protected] wrote:
----------------------------------------------------------------------
Message: 1
Date: Fri, 28 Oct 2011 10:06:12 -0500 (CDT)
From: "Jeremy C. Reed" <[email protected]>
To: [email protected]
Subject: [Simh] networking with simh on MacOS?
Message-ID: <[email protected]>
Content-Type: TEXT/PLAIN; charset=US-ASCII
I have
$ uname -mprsv
Darwin 10.6.0 Darwin Kernel Version 10.6.0: Wed Nov 10 18:11:58 PST
2010; root:xnu-1504.9.26~3/RELEASE_X86_64 x86_64 i386
I installed simh-3.8.1nb1 as installed using pkgsrc with these
patches:
http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/emulators/simh/patches/?only_with_tag=MAIN
It is built using libpcap and USE_NETWORK=YES OSTYPE=darwin.
I am trying to use OpenBSD 4.9.
I am unable to get the networking to work:
sim> at xq0 en0
File open error
Any suggestions for the networking on Mac OS X?
My simh configuration is:
load -r /Local/Users/jreed/opt/pkg//share/simh/ka655x.bin
set cpu 64m
at nvr openbsd.nvram
deposit rq qtime 1000000
set rq0 ra92
at rq0 openbsd.ra0.disk
set rq2 cdrom
at rq2 floppy48.fs
at xq0 en0
boot cpu
exit
It does boot that OpenBSD image.
The output including OpenBSD kernel output follows:
VAX simulator V3.8-1
NVR: buffering file in memory
openbsd.simh> at xq0 en0
File open error
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