Date: Wed, 7 Jun 1995 16:30:02 -0700 From: Paul Traina <pst@Shockwave.COM> To: freebsd-bugs Subject: kern/497: bug in BSDI compatibility - ogetkerninfo() not up to date Message-ID: <199506072330.QAA22459@freefall.cdrom.com> In-Reply-To: Your message of Wed, 7 Jun 1995 16:28:58 -0700 <199506072328.QAA07871@precipice.shockwave.com>
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>Number: 497
>Category: kern
>Synopsis: system calls to the kernel for BSDI uname() compatibility break
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs (FreeBSD bugs mailing list)
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Jun 7 16:30:01 1995
>Originator: Paul Traina
>Organization:
Shockwave Engineering
>Release: FreeBSD 2.0-BUILT-19950510 i386
>Environment:
FreeBSD-current as of may 10th.
>Description:
7727 netscape.bin11n CALL old.gethostname(0xefbfd238,0x100)
7727 netscape.bin11n RET old.gethostname 0
7727 netscape.bin11n CALL old.getkerninfo(0x6500,0,0,0)
7727 netscape.bin11n RET old.getkerninfo -1 errno 45 Operation not supported
7727 netscape.bin11n CALL write(0x2,0xefbfbd44,0x49)
7727 netscape.bin11n GIO fd 2 wrote 73 bytes
"netscape.bin11n: uname() failed; can't tell what system we're running \
on
"
>How-To-Repeat:
Run the BSDI version of netscape 1.1n under FreeBSD and you get an error
message (see above).... it's doing a getkerninfo(KINFO_SYSINFO) as part of
the uname() library call.
>Fix:
Fix ogetkerninfo system call to do the right thing when presented
with that calling sequence. We probably just need a KINFO_SYSINFO
emulator, but here's the whole list that we're missing.
The following routines are missing from FreeBSD's ogetkerninfo support:
KINFO_SYSINFO 101<<8
KINFO_CPU 102<<8
KINFO_VM 103<<8
KINFO_DISK_NAMES 104<<8
KINFO_DISK_STATS 105<<8
KINFO_TTY_TOTALS 106<<8
KINFO_TTY_NAMES_TMP 111<<8
KINFO_TTY_STATS_TMP 112<<8
and the KINFO_SYSINFO routine should return a pointer to a data
structure of the following format:
/*
* Information about the current system.
* This structure includes only fairly static information
* (set no later than boot time.) Returned by getkerninfo().
* The strings are copied out immediately after this structure.
* The pointers are offsets from the start of the buffer
* when returned by the kernel.
*/
struct sysinfo {
/* machine info */
char *sys_machine; /* generic machine type */
char *sys_model; /* specific machine type/model */
long sys_ncpu; /* number of cpus */
long sys_cpuspeed; /* ~mips, per cpu */
long sys_hwflags; /* additional info, see below */
u_long sys_physmem; /* amount of physical memory, KB */
u_long sys_usermem; /* amount of memory for procs, KB */
u_long sys_pagesize; /* software page size */
/* system info */
char *sys_ostype; /* generic OS type: "BSD" */
char *sys_osrelease; /* general OS release */
long sys_os_revision; /* OS interface version number */
long sys_posix1_version; /* POSIX.1 version number */
char *sys_version; /* binary version info */
/* system parameters */
long sys_hz; /* time-of-day clock frequency */
long sys_phz; /* profiling/stats clock frequency */
int sys_ngroup_max; /* max number of groups */
long sys_argmax; /* max arg list size */
llong sys_openmax; /* approx. max number of open files */
long sys_childmax; /* approx. max number of procs */
/* local info */
struct timeval sys_boottime; /* time of last system boot */
char *sys_hostname; /* specific host name */
/* string values follow */
};
/*
* values for sys_hwflags
* Bits above 0xff are reserved for hardware-dependent features.
*/
#define SYS_FPA 0x01 /* has floating-point accelerator */
Please note that this was excerpted from sysinfo.h which contains the
following copyright:
/*-
* Copyright (c) 1992 Berkeley Software Design, Inc. All rights reserved.
* The Berkeley Software Design Inc. software License Agreement specifies
* the terms and conditions for redistribution.
*
* BSDI $Id: sysinfo.h,v 1.1 1992/08/20 18:33:06 karels Exp $
*/
The engineer who implements this should be untainted (I am not untainted
in this case, so I can't do it).
>Audit-Trail:
>Unformatted:
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