Debian Bug report logs - #444087
klibc-utils: ipconfig fails on sparc64: eth0: socket(AF_INET): Function not implemented

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Vagrant Cascadian <vagrant+debianbugs@freegeek.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: klibc-utils: ipconfig fails on sparc64: eth0: socket(AF_INET): Function not implemented

Date: Tue, 25 Sep 2007 17:30:59 -0700

[Message part 1 (text/plain, inline)]

Package: klibc-utils
Version: 1.5.5-1
Severity: normal


snippet from attached log:

Begin: Running /scripts/init-premount ...
sunhme.c:v3.00 June 23, 2006 David S. Miller (davem@davemloft.net)
eth0: HAPPY MEAL (PCI/CheerIO) 10/100BaseT Ethernet 08:00:20:c0:68:9a
Done.
Begin: Mounting root file system... ...
Begin: Running /scripts/nfs-top ...
DonUnimplemented SPARC system call 97
Kernel panic - not syncing: Attempted to kill init!
Press Stop-A (L1-A) to return to the boot prom
e.
ipconfig: eth0: socket(AF_INET): Function not implemented
ipconfig: no devices to configure
/init: .: 165: Can't open /tmp/net-eth0.conf

i also tried configuring networking manually, with:

boot net:dhcp ip=10.7.7.15:10.7.7.1:::255.255.255.0:eth0:off nfsroot=10.7.7.1:/opt/ltsp/sparc BOOT=nfs

but the error message didn't change at all....

full boot log attached.

live well,
  vagrant

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: sparc (sparc64)

Kernel: Linux 2.6.18-5-sparc64-smp (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages klibc-utils depends on:
ii  libklibc                      1.5.5-1    minimal libc subset for use with i

klibc-utils recommends no packages.

-- no debconf information

[sparc64.boot.log (text/plain, attachment)]

Message #10 received at 444087@bugs.debian.org (full text, mbox, reply):

From: jeremy buisson <jeremy.buisson@st-cyr.terre-net.defense.gouv.fr>

To: Debian Bug Tracking System <444087@bugs.debian.org>

Subject: klibc-utils: klibc sparc64: bad 32 bits socket syscalls

Date: Wed, 27 May 2009 08:57:23 +0200

Package: klibc-utils
Version: 1.5.12-2
Followup-For: Bug #444087

The 32 bits version of socket-related syscalls for sparc/sparc64 does 
not seem to conform to the interface provided by the kernel. As a 
result, klibc-utils commands such as ipconfig ends with a "ipconfig: 
eth0: socket(AF_INET): Function not implemented".

See bug #444087 for the log with an older version. See for the following 
session for another evidence of the problem with a newer version:
jeremy@sunny:~$ /usr/lib/klibc/bin/ipconfig lo
ipconfig: lo: socket(AF_INET): Function not implemented
/usr/lib/klibc/bin/ipconfig: no devices to configure

Looking at the source code, it seems there is 2 call mechanisms:
- if the kernel header files (asm/unistd.h) defines __NR_socket (and so 
on), the makefiles uses the syscall interface ;
- otherwise, the makefiles uses the socketcall interface, which wraps 
the call into a common syscall (named socketcall).
See the <src>/usr/klibc/syscalls.pl and <src>/usr/klibc/socketcalls.pl 
for details.

Looking at the kernel source code for the 32 bits syscall table for the 
sparc64 architecture <src-2.6.26>/arch/sparc64/kernel/systbls.S, we see 
at index __NR_socket (97 according to asm-sparc/unistd.h and to 
asm-sparc64/unistd.h) that the entry points to sys_nis_syscall. Looking 
in <src-2.6.26>/arch/sparc64/kernel/syscalls.S, it branches to 
c_sys_nis_syscall, which (<src-2.6.26>/arch/sparc64/kernel/sys_sparc.c) 
returns ENOSYS, the error code for non-implemented syscalls.

According to my quick tests, there are 2 workarounds:
1) compile klibc to sparc64, as the 64 bits syscall table of the kernel 
provides the direct socket (and related) syscalls
2) patch klibc such that it uses socketcall when targeting sparc(32).

Here is a sample patch for the 2nd option:
diff -urN a/usr/klibc/socketcalls.pl b/usr/klibc/socketcalls.pl
--- a/usr/klibc/socketcalls.pl  2008-07-08 01:05:17.000000000 +0200
+++ b/usr/klibc/socketcalls.pl  2009-05-26 14:32:03.000000000 +0200
@@ -63,7 +63,7 @@

            print OUT "#include \"socketcommon.h\"\n";
            print OUT "\n";
-           print OUT "#ifndef __NR_${name}\n\n";
+           print OUT "#if (defined(__sparc__) && !defined(__arch64__)) || !defined(__NR_${name})\n\n";

            print OUT "extern long __socketcall(int, const unsigned long *);\n\n";

diff -urN a/usr/klibc/SYSCALLS.def b/usr/klibc/SYSCALLS.def
--- a/usr/klibc/SYSCALLS.def    2008-07-08 01:05:17.000000000 +0200
+++ b/usr/klibc/SYSCALLS.def    2009-05-26 14:30:16.000000000 +0200
@@ -259,4 +259,9 @@
  * system calls.
  */
 <?!i386> long socketcall::__socketcall(int, const unsigned long *);
+#if !defined(__sparc__) && !defined(__arch64__)
+/*
+ * SPARC does not have direct syscalls for socket
+ */
 #include "SOCKETCALLS.def"
+#endif

-- System Information:
Debian Release: 5.0.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: sparc (sparc64)

Kernel: Linux 2.6.26-2-sparc64
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

Versions of packages klibc-utils depends on:
ii  libklibc                      1.5.12-2   minimal libc subset for use with i

klibc-utils recommends no packages.

klibc-utils suggests no packages.

-- no debconf information

Message #17 received at 444087-close@bugs.debian.org (full text, mbox, reply):

From: maximilian attems <maks@debian.org>

To: 444087-close@bugs.debian.org

Subject: Bug#444087: fixed in klibc 1.5.17-1

Date: Sat, 20 Mar 2010 16:34:02 +0000

Source: klibc
Source-Version: 1.5.17-1

We believe that the bug you reported is fixed in the latest version of
klibc, which is due to be installed in the Debian FTP archive:

klibc-utils-floppy-udeb_1.5.17-1_amd64.udeb
  to main/k/klibc/klibc-utils-floppy-udeb_1.5.17-1_amd64.udeb
klibc-utils-udeb_1.5.17-1_amd64.udeb
  to main/k/klibc/klibc-utils-udeb_1.5.17-1_amd64.udeb
klibc-utils_1.5.17-1_amd64.deb
  to main/k/klibc/klibc-utils_1.5.17-1_amd64.deb
klibc_1.5.17-1.debian.tar.gz
  to main/k/klibc/klibc_1.5.17-1.debian.tar.gz
klibc_1.5.17-1.dsc
  to main/k/klibc/klibc_1.5.17-1.dsc
klibc_1.5.17.orig.tar.bz2
  to main/k/klibc/klibc_1.5.17.orig.tar.bz2
libklibc-dev_1.5.17-1_amd64.deb
  to main/k/klibc/libklibc-dev_1.5.17-1_amd64.deb
libklibc-udeb_1.5.17-1_amd64.udeb
  to main/k/klibc/libklibc-udeb_1.5.17-1_amd64.udeb
libklibc_1.5.17-1_amd64.deb
  to main/k/klibc/libklibc_1.5.17-1_amd64.deb



A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 444087@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
maximilian attems <maks@debian.org> (supplier of updated klibc package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Format: 1.8
Date: Sat, 20 Mar 2010 02:11:20 +0100
Source: klibc
Binary: libklibc-dev libklibc klibc-utils klibc-utils-udeb klibc-utils-floppy-udeb libklibc-udeb
Architecture: source amd64
Version: 1.5.17-1
Distribution: unstable
Urgency: low
Maintainer: maximilian attems <maks@debian.org>
Changed-By: maximilian attems <maks@debian.org>
Description: 
 klibc-utils - small utilities built with klibc for early boot
 klibc-utils-floppy-udeb - small utilities built with klibc for the boot floppy (udeb)
 klibc-utils-udeb - small utilities built with klibc for early boot (udeb)
 libklibc   - minimal libc subset for use with initramfs
 libklibc-dev - kernel headers used during the build of klibc
 libklibc-udeb - minimal libc subset for use with initramfs (udeb)
Closes: 444087 511959 573908 573926
Changes: 
 klibc (1.5.17-1) unstable; urgency=low
 .
   [ Jan Hauke Rahm ]
   * Switch from cdbs to debhelper 7
   * Switch to Source Format 3.0 (quilt) (closes: #573908)
   * Make documentation of klibc-utils and libklibc-dev be a symlink to
     libklibc
 .
   [ maximilian attems ]
   * New upstream release
     - Fix FTFBS i386/sparc. (closes: #573926)
     - sparc, sparc64 use sys_socketcall unconditionally. (closes: #444087)
     - ipconfig may discard useful packets. (closes: #511959)
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