[ANNOUNCE] udev 126 release

[ANNOUNCE] udev 126 release

[Kay Sievers]

Here comes a new udev version. Thanks to all who have contributed to
this release.

The tarball can be found here:
  ftp://ftp.kernel.org/pub/linux/utils/kernel/hotplug/

The development repository can be found here:
  http://www.kernel.org/git/?p=linux/hotplug/udev.git;a=summary

The ChangeLog can be found here:
  http://www.kernel.org/git/?p=linux/hotplug/udev.git;a=blob;hb=HEAD;f=ChangeLog


udev 126
====
We use ./configure now. See INSTALL for details. Current
options are:
    --prefix        "/usr" - prefix for man pages, include files
    --exec-prefix        "" - the root filesystem, prefix for libs and binaries
    --sysconfdir        "/etc"
    --with-libdir-name        "lib" - directory name for libraries, not a path name
        multilib 64bit systems may use "lib64" instead of "lib"
    --enable-debug
        compile-in verbose debug messages
    --disable-logging
        disable all logging and compile-out all log strings
    --with-selinux
        link against SELInux libraries, to set the expected context
        for created files

In the default rules, the group "disk" gets permissions 0660 instead
of 0640. One small step closer to unify distro rules. Some day, all
distros hopefully end up with the same set of rules.

No symlinks to udevadm are installed anymore, if they are still needed,
they should be provided by the package.

Re: [ANNOUNCE] udev 126 release

[Karel Zak]

On Mon, Aug 04, 2008 at 08:53:06AM +0200, Kay Sievers wrote:
> udev 126
> ====
> We use ./configure now. See INSTALL for details. Current

 Finally. Thanks :-)

    Karel

-- 
 Karel Zak  <kzak@redhat.com>

Re: [ANNOUNCE] udev 126 release

[Gabor Z. Papp]

* Kay Sievers <kay.sievers@vrfy.org>:

| Here comes a new udev version. Thanks to all who have contributed to
| this release.

gcc -g -O2 -o test-udev test-udev.o udev_config.o udev_db.o
udev_device.o udev_node.o udev_rules.o udev_rules_parse.o
udev_sysdeps.o udev_sysfs.o udev_utils.o udev_utils_file.o udev_utils_string.o   
gcc -DHAVE_CONFIG_H -I. -I..  -DSYSCONFDIR=\""/etc"\" -DUDEV_PREFIX=\""/usr"\"   -g -O2 -MT udevd.o -MD -MP -MF
.deps/udevd.Tpo -c -o udevd.o udevd.c
udevd.c: In function 'init_uevent_netlink_sock':
udevd.c:909: error: 'NETLINK_KOBJECT_UEVENT' undeclared (first use in this function)
udevd.c:909: error: (Each undeclared identifier is reported only once
udevd.c:909: error: for each function it appears in.)
udevd.c:916: error: 'SO_RCVBUFFORCE' undeclared (first use in this function)
udevd.c: In function 'main':
udevd.c:1152: error: 'IN_CREATE' undeclared (first use in this function)
udevd.c:1152: error: 'IN_DELETE' undeclared (first use in this function)
udevd.c:1152: error: 'IN_MOVE' undeclared (first use in this function)
udevd.c:1152: error: 'IN_CLOSE_WRITE' undeclared (first use in this function)
make[2]: *** [udevd.o] Error 1

[kernel]
Linux gzp1 2.4.36.6-gzp1 #1 SMP Sat Jun 7 08:43:14 CEST 2008 i686 GNU/Linux

[glibc]
GNU C Library stable release version 2.3.6, by Roland McGrath et al.
Compiled by GNU CC version 4.1.2.
Compiled on a Linux 2.4.34-gzp1 system on 2007-04-04.

[gcc]
gcc (GCC) 4.2.4

[binutils]
GNU ld (Linux/GNU Binutils) 2.18.50.0.8.20080709

[autoconf]
autoconf (GNU Autoconf) 2.62

[automake]
automake (GNU automake) 1.10.1

[libtool]
ltmain.sh (GNU libtool) 1.5.26 (1.1220.2.492 2008/01/30 06:40:56)

Re: [ANNOUNCE] udev 126 release

[Kay Sievers]

On Fri, 2008-08-08 at 12:55 +0200, Gabor Z. Papp wrote:
> * Kay Sievers <kay.sievers@vrfy.org>:
> 
> | Here comes a new udev version. Thanks to all who have contributed to
> | this release.
> 
> gcc -g -O2 -o test-udev test-udev.o udev_config.o udev_db.o
> udev_device.o udev_node.o udev_rules.o udev_rules_parse.o
> udev_sysdeps.o udev_sysfs.o udev_utils.o udev_utils_file.o udev_utils_string.o   
> gcc -DHAVE_CONFIG_H -I. -I..  -DSYSCONFDIR=\""/etc"\" -DUDEV_PREFIX=\""/usr"\"   -g -O2 -MT udevd.o -MD -MP -MF
> .deps/udevd.Tpo -c -o udevd.o udevd.c
> udevd.c: In function 'init_uevent_netlink_sock':
> udevd.c:909: error: 'NETLINK_KOBJECT_UEVENT' undeclared (first use in this function)
> udevd.c:909: error: (Each undeclared identifier is reported only once
> udevd.c:909: error: for each function it appears in.)
> udevd.c:916: error: 'SO_RCVBUFFORCE' undeclared (first use in this function)
> udevd.c: In function 'main':
> udevd.c:1152: error: 'IN_CREATE' undeclared (first use in this function)
> udevd.c:1152: error: 'IN_DELETE' undeclared (first use in this function)
> udevd.c:1152: error: 'IN_MOVE' undeclared (first use in this function)
> udevd.c:1152: error: 'IN_CLOSE_WRITE' undeclared (first use in this function)
> make[2]: *** [udevd.o] Error 1
> 
> [kernel]
> Linux gzp1 2.4.36.6-gzp1 #1 SMP Sat Jun 7 08:43:14 CEST 2008 i686 GNU/Linux

Udev depends on a 2.6 kernel. :) The udev build depends on
kernel-headers, which contain the features udev uses. 

Older udev versions used to work around missing pieces, but all of the
needed features like netlink uevent, inotify are mainstream for several
years now, and therefore no longer provided by the udev source code.

Kay

Re: [ANNOUNCE] udev 126 release

[Gabor Z. Papp]

* Kay Sievers <kay.sievers@vrfy.org>:

| > Linux gzp1 2.4.36.6-gzp1 #1 SMP Sat Jun 7 08:43:14 CEST 2008 i686 GNU/Linux

| Udev depends on a 2.6 kernel. :) The udev build depends on
| kernel-headers, which contain the features udev uses. 

okay. v125 built fine on 2.4

Re: [ANNOUNCE] udev 126 release

[Gabor Z. Papp]

* "Gabor Z. Papp" <gzp@papp.hu>:

| | > Linux gzp1 2.4.36.6-gzp1 #1 SMP Sat Jun 7 08:43:14 CEST 2008 i686 GNU/Linux

| | Udev depends on a 2.6 kernel. :) The udev build depends on
| | kernel-headers, which contain the features udev uses. 

| okay. v125 built fine on 2.4

Building on 2.6.26.2:

make  all-recursive
make[1]: Entering directory `/mnt/harddisk/home/gzp/src/udev-126'
Making all in udev
make[2]: Entering directory `/mnt/harddisk/home/gzp/src/udev-126/udev'
gcc -DHAVE_CONFIG_H -I. -I..  -DSYSCONFDIR=\""/usr/etc"\" -DUDEV_PREFIX=\""/usr"\"   -g -O2 -MT udevd.o -MD -MP -MF .deps/udevd.Tpo -c -o udevd.o udevd.c
udevd.c: In function `main':
udevd.c:1152: error: `IN_CREATE' undeclared (first use in this function)
udevd.c:1152: error: (Each undeclared identifier is reported only once
udevd.c:1152: error: for each function it appears in.)
udevd.c:1152: error: `IN_DELETE' undeclared (first use in this function)
udevd.c:1152: error: `IN_MOVE' undeclared (first use in this function)
udevd.c:1152: error: `IN_CLOSE_WRITE' undeclared (first use in this function)
make[2]: *** [udevd.o] Error 1
make[2]: Leaving directory `/mnt/harddisk/home/gzp/src/udev-126/udev'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/mnt/harddisk/home/gzp/src/udev-126'
make: *** [all] Error 2

Re: [ANNOUNCE] udev 126 release

[Kay Sievers]

On Fri, 2008-08-08 at 13:33 +0200, Gabor Z. Papp wrote:
> * "Gabor Z. Papp" <gzp@papp.hu>:
> 
> | | > Linux gzp1 2.4.36.6-gzp1 #1 SMP Sat Jun 7 08:43:14 CEST 2008 i686 GNU/Linux
> 
> | | Udev depends on a 2.6 kernel. :) The udev build depends on
> | | kernel-headers, which contain the features udev uses. 
> 
> | okay. v125 built fine on 2.4
> 
> Building on 2.6.26.2:
> 
> make  all-recursive
> make[1]: Entering directory `/mnt/harddisk/home/gzp/src/udev-126'
> Making all in udev
> make[2]: Entering directory `/mnt/harddisk/home/gzp/src/udev-126/udev'
> gcc -DHAVE_CONFIG_H -I. -I..  -DSYSCONFDIR=\""/usr/etc"\" -DUDEV_PREFIX=\""/usr"\"   -g -O2 -MT udevd.o -MD -MP -MF .deps/udevd.Tpo -c -o udevd.o udevd.c
> udevd.c: In function `main':
> udevd.c:1152: error: `IN_CREATE' undeclared (first use in this function)
> udevd.c:1152: error: (Each undeclared identifier is reported only once
> udevd.c:1152: error: for each function it appears in.)
> udevd.c:1152: error: `IN_DELETE' undeclared (first use in this function)
> udevd.c:1152: error: `IN_MOVE' undeclared (first use in this function)
> udevd.c:1152: error: `IN_CLOSE_WRITE' undeclared (first use in this function)
> make[2]: *** [udevd.o] Error 1
> make[2]: Leaving directory `/mnt/harddisk/home/gzp/src/udev-126/udev'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/mnt/harddisk/home/gzp/src/udev-126'
> make: *** [all] Error 2

What does:
  grep IN_ /usr/include/sys/inotify.h
print?

And:
  grep INOTIFY config.h
in the udev source tree print?

I guess Inotify is not available on your system, and the udev build
tries to disable it, but we need a few more ifdef's to make it compile
without it.

Kay

Re: [ANNOUNCE] udev 126 release

[Gabor Z. Papp]

* Kay Sievers <kay.sievers@vrfy.org>:

| What does:
|   grep IN_ /usr/include/sys/inotify.h
| print?

Its glibc 2.3.6, there is no sys/inotify.h

| And:
|   grep INOTIFY config.h
| in the udev source tree print?

/* #undef HAVE_INOTIFY */

| I guess Inotify is not available on your system, and the udev build
| tries to disable it, but we need a few more ifdef's to make it compile
| without it.

Additional question: udev_rules_parse.c line 745,
is that normal, that udevd prints a big WARNING/ERROR at start if
UDEV_PREFIX "/lib/udev/rules.d" directory doesnt exist?

Re: [ANNOUNCE] udev 126 release

[Kay Sievers]

On Fri, Aug 8, 2008 at 14:00, Gabor Z. Papp <gzp@papp.hu> wrote:
> * Kay Sievers <kay.sievers@vrfy.org>:
>
> | What does:
> |   grep IN_ /usr/include/sys/inotify.h
> | print?
>
> Its glibc 2.3.6, there is no sys/inotify.h
>
> | And:
> |   grep INOTIFY config.h
> | in the udev source tree print?
>
> /* #undef HAVE_INOTIFY */
>
> | I guess Inotify is not available on your system, and the udev build
> | tries to disable it, but we need a few more ifdef's to make it compile
> | without it.

I pushed out a fix for this:
  http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;hk8c150e12dba22e600da918828b9e648c10018e
I hope it compiles now, if inotify is not available. Thanks for the help.

> Additional question: udev_rules_parse.c line 745,
> is that normal, that udevd prints a big WARNING/ERROR at start if
> UDEV_PREFIX "/lib/udev/rules.d" directory doesnt exist?

Packages can drop rules to that directory, and just expect it to be
there. The daemon also likes to monitor the directory with inotify to
re-parse the rules if needed, so it should exist, yes.

Thanks,
Kay

Re: [ANNOUNCE] udev 126 release

[Marco d'Itri]

On Aug 08, Kay Sievers <kay.sievers@vrfy.org> wrote:

> > Additional question: udev_rules_parse.c line 745,
> > is that normal, that udevd prints a big WARNING/ERROR at start if
> > UDEV_PREFIX "/lib/udev/rules.d" directory doesnt exist?
> Packages can drop rules to that directory, and just expect it to be
> there. The daemon also likes to monitor the directory with inotify to
> re-parse the rules if needed, so it should exist, yes.
I just patched away the warning, since we decided that there is no point
for Debian and Ubuntu to move the files.

-- 
ciao,
Marco

Re: [ANNOUNCE] udev 126 release

[Kay Sievers]

On Fri, Aug 8, 2008 at 23:18, Marco d'Itri <md@linux.it> wrote:
> On Aug 08, Kay Sievers <kay.sievers@vrfy.org> wrote:
>
>> > Additional question: udev_rules_parse.c line 745,
>> > is that normal, that udevd prints a big WARNING/ERROR at start if
>> > UDEV_PREFIX "/lib/udev/rules.d" directory doesnt exist?
>> Packages can drop rules to that directory, and just expect it to be
>> there. The daemon also likes to monitor the directory with inotify to
>> re-parse the rules if needed, so it should exist, yes.
> I just patched away the warning, since we decided that there is no point
> for Debian and Ubuntu to move the files.

New packages will drop files here, so you will need to patch all these
apps too. Good luck!

Kay

Re: [ANNOUNCE] udev 126 release

[Gabor Z. Papp]

* "Kay Sievers" <kay.sievers@vrfy.org>:

| > I just patched away the warning, since we decided that there is no point
| > for Debian and Ubuntu to move the files.

| New packages will drop files here, so you will need to patch all these
| apps too. Good luck!

What packages? I have no packages.

Re: [ANNOUNCE] udev 126 release

[Kay Sievers]

On Sat, 2008-08-09 at 11:41 +0200, Gabor Z. Papp wrote:
> * "Kay Sievers" <kay.sievers@vrfy.org>:
> 
> | > I just patched away the warning, since we decided that there is no point
> | > for Debian and Ubuntu to move the files.
> 
> | New packages will drop files here, so you will need to patch all these
> | apps too. Good luck!
> 
> What packages? I have no packages.

Sure, not today, it was just added only a few weeks ago. But we will
move stuff over over time, and recent packages which depend on a new
udev version, like all the upcoming DeviceKit stuff, can expect the
directory to be there. and can expect udevd to automatically recognize
rule changes with inotify.
All that will break, if you try to needlessly "optimize" things. Just
create the directory, even when it's empty today, it's an official udev
ABI.

Kay