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Here we catch up, after the default config changes.
o the man page is updated to reflect the new default config
o /etc/udev/rules.d/ + permissions.d/ dirs are created now
o udev.rules is installed in /etc/udev/rules.d/50-udev.rules
so the user can easily order the files by prepending a number.
(RedHat has the same name in the last rpm.)
o defined directory names in the Makefile are all without slashes now,
not the first half with and the remaining without.
o all binaries are uninstalled now
o leading slashes in config values are now removed or prepended while the
config is parsed, so we are more robust if the usere changes something.
o replaced the macros from udev_config.c with real code, cause we can
skip if the value matches and not useless iterate over the remaining
fields.
o config parsing errors are logged with info() now, fixes the bug where
we report a error with debug_parse(), even when there isn't one
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It seems that the transition from DEVNODE to DEVNAME wasn't done
everywhere. This broke udev_dbus for me.
Attached patch does the transition in the places it wasn't done yet.
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On Fri, Mar 26, 2004 at 06:36:32PM +0500, Ananth N Mavinakayanahalli wrote:
> On Fri, Mar 26, 2004 at 11:24:39AM +0100, Kay Sievers wrote:
> > On Fri, Mar 26, 2004 at 11:21:29AM +0500, Ananth N Mavinakayanahalli wrote:
> > > On Fri, Mar 26, 2004 at 04:47:35AM +0100, Kay Sievers wrote:
> > > > On Fri, Mar 26, 2004 at 01:26:46AM +0100, Carl-Daniel Hailfinger wrote:
> > > > > Greg KH wrote:
> > > > > > On Tue, Mar 23, 2004 at 01:51:01PM -0800, Daniel Stekloff wrote:
> > > >
> > > > No, it breaks the net device handling. I think we should change
> > > > libsysfs instead, not to return a class device for '/block', if
> > > > we want to fix it.
> > >
> > > /sys/block is considered a sysfs "class" and not a class_device. So,
> > > going by udevinfo's help, -p expects path to a class_device and _not_
> > > a class itself and hence option /sys/block with -p is not a valid query.
> > >
> > > Kay?
> >
> > Yes, it's invalid, but we shouldn't print major minor for a invalid
> > path. sysfs_open_class_device_path("/block") returns a device. If this is
> > the right behavior for libsysfs, I will change the get_device_type("/block")
> > not to return a 'b'-type.
>
> Libsysfs validates the path given to it for opening a class_device to be
> a valid directory; it does not however validate if the path is a valid
> class_device path. So, in the case of udevinfo, a 'b' type should not
> be returned if the path is just /sys/block or /sys/block/
This may prevent it.
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On Thu, Mar 25, 2004 at 02:52:13AM +0100, Kay Sievers wrote:
> Please have look if it still works for you, I only did a very quick
> test.
Here is a unified version, with all the functions moved to udev_lib.c.
We have a generic function now, to call a given fnct(char *) for every
file ending with a specific suffix, sorted in lexical order. We use it
to execute the dev.d/ files and read our rules.d/ files. The binary
should be a bit smaller now.
I've also changed it, to not do the dev.d/ exec for net devices.
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Hmm, Arndt Bergmann sent a patch like this one a few weeks ago and
I want to bring the question back, if we want to handle net device
naming with udev.
With this patch it is actually possible to specify something like this
in udev.rules:
KERNEL="dummy*", SYSFS{address}="00:00:00:00:00:00", SYSFS{features}="0x0", NAME="blind%n"
KERNEL="eth*", SYSFS{address}="00:0d:60:77:30:91", NAME="private"
and you will get:
[root@pim udev.kay]# cat /proc/net/dev
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
lo: 1500 30 0 0 0 0 0 0 1500 30 0 0 0 0 0 0
private: 278393 1114 0 0 0 0 0 0 153204 1468 0 0 0 0 0 0
sit0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
blind0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
The udevinfo program is also working:
[root@pim udev.kay]# ./udevinfo -a -p /sys/class/net/private
looking at class device '/sys/class/net/private':
SYSFS{addr_len}="6"
SYSFS{address}="00:0d:60:77:30:91"
SYSFS{broadcast}="ff:ff:ff:ff:ff:ff"
SYSFS{features}="0x3a9"
SYSFS{flags}="0x1003"
SYSFS{ifindex}="2"
SYSFS{iflink}="2"
SYSFS{mtu}="1500"
SYSFS{tx_queue_len}="1000"
SYSFS{type}="1"
follow the class device's "device"
looking at the device chain at '/sys/devices/pci0000:00/0000:00:1e.0/0000:02:01.0':
BUS="pci"
ID="0000:02:01.0"
SYSFS{class}="0x020000"
SYSFS{detach_state}="0"
SYSFS{device}="0x101e"
SYSFS{irq}="11"
SYSFS{subsystem_device}="0x0549"
SYSFS{subsystem_vendor}="0x1014"
SYSFS{vendor}="0x8086"
The matching device will be renamed to the given name. The device name
will not be put into the udev database, cause the kernel renames the
device and the sysfs name disappears.
I like it, cause it plugs in nicely. We have all the naming features
and sysfs queries and walks inside of udev. The sysfs timing races
are already solved and the management tools are working for net devices
too. nameif can only match the MAC address now. udev can match any sysfs
value of the device tree the net device is connected to.
But right, net devices do not have device nodes :)
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Here we replace the various fgets() with a mmap() call for the config
file reading, due to the reported performance problems with klibc.
Thanks to Patrick's testing, it makes a very small, close to nothing
speed gain for libc users, but a 6 times speed increase for klibc users
with a 1000 line config file.
I've created a udev_lib.[hc] for this and also moved all the generic
stuff from udev.h in there and uninlined the functions.
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