Add new functions require_binaries() and require_any_binary() to be used
in the check() section of module-setup.sh.
These functions print a warning line telling the user, which binary is
missing for the specific dracut module.
This unifies the way of checking for binaries and makes the life of an
initramfs creator easier, if he wants to find out why a specific dracut
module is not included in the initramfs.
The dracut dhclient-script.sh should set address lifetimes to the DHCP
lease time, so that other stuff (like NetworkManager!) knows that the
address is temporary and was created by DHCP.
https://bugzilla.redhat.com/show_bug.cgi?id=1058519
Configure cmdline to:
ip=br0:dhcp bridge=br0:bond0 bond=bond0:eth0
By default ifup bond0 will run dhcp on bond0, which is wrong. bond0
isn't the top interface. we should really run dhcp on br0.
So if we ifup an network interface on secondary stack, we should not
dhcp. Fix this issue with this patch.
Previously if "$rootok" = 1, parsing of netroot command line arguments
was skipped. For multiple netroot arguments, all parse scripts have to
run.
Previously only the first netroot argument was taken into account for
the parsing scripts. Now every netroot argument is processed.
Fix 3 issues in ibft_to_cmdline():
- unset local variables at the beginning of each loop
- only write vlan.conf when we write out ip=xxx
- when vlan id is 0, don't write out vlan.conf. Because 0 means untagged
and we don't actually need vlan interface.
We only wait for master interfaces for bridge/bonding/team/vlan case.
If none of these complex network is configured, we should wait for
ethernet interface (bootdev) instead.
configured_ifaces is a function that returns the names of each interface
that the user wanted configured.
Currently, this is accomplished by reading the list from
/tmp/net.ifaces. But if we want to allow the user to specify an
interface by its MAC address or IP or something, we need a function that
will read the cache and convert the MACs etc. to names.
(Obviously this conversion only works once udev starts, so it will warn
you if you try it too early.)
Now that we can use a MAC as a device identifier, we can just bring up
the device specified by BOOTIF as a normal interface.
So instead of ignoring everything but BOOTIF, we'll put BOOTIF in the
IFACES list and bring it up as normal, defaulting to DHCP if nothing
else is specified.
We can also handle anaconda-style 'ksdevice=bootif' this way.
A MAC address is a unique identifier for a particular network interface.
We can use the MAC to generate udev rules to bring up that interface,
like we currently do with BOOTIF.
This patch allows interfaces to be specified as a MAC address, either
in the usual colon-separated form or the PXE-style dash-separated form.
(The latter is more useful on the commandline, since it allows for
arguments like: "ip=77-77-6f-6f-64-73:dhcp")
This is useful since it's common for a user who is booting a new OS for
the first time to know the MAC of the device, but not know what the
kernel name will be.
Currently dracut only support 1 bond, namyly bond0 by default. However multiple
bonds configuration may be needed. For example in kdump, in 1st kernel, more
than one bonds may be configured, and bondX other than bond0 is used as output
interface to remote host which will store dump core. This patch can solve this
problem, to write real bond information to initramfs, 2nd kdump kernel will
use it to create the relevant bondX interface.
Tested-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Baoquan He <bhe@redhat.com>
Team is the same network stack as bonding. Therefore give ifup the ability to
handle bridge over team and vlan tagged team as bonding too.
Signed-off-by: WANG Chao <chaowang@redhat.com>
To use vlan for net boot, you need to specify vlan and ip kernel options
for the boot interface. For example,
vlan=eth1.1:eth1 bootdev=eth1.1
ip=1.2.3.4:1.2.3.4::255.255.255.0:my-hostname:eth1:none
To use bridge for net boot, you need to specify bridge and ip kernel
option for the boot interface. For example
bridge=br1:eth1 bootdev=br1
ip=1.2.3.4:1.2.3.4::255.255.255.0:my-hostname:eth1:none
In my environment, I needs to boot machines from network within
a vlan or on a bridged network. I found curent dracut release
if-up.sh script in 40network module bypass ip setting for both
bridge and vlan interface.
linkup is a wrapper function for waiting interface ready and up.
change to use linkup as what we do in ifup script.
Signed-off-by: Dave Young <dyoung@redhat.com>
In case that configuration file did not include name of team device,
teamd would not start. Fix this by adding "-t" parameter.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
In case long delay of network driver initqueue will exit before net dev is
ready. We have no chance to setup it then.
For dhcp, when we finish the setup there will be a setup_net_<dev>.ok. Doing
same for static ip case. Also add a check to initqueue when we generate udev
rules to ensure it's early enough.
[v1->v2]: only wait for bootdev or it's possible to cause boot fail for
waiting for non-bootdev. For example bond0->eth0, set bond0 as bootdev and
dhcp, we only need to wait bond0 setup ok.
Signed-off-by: Dave Young <dyoung@redhat.com>
In case BOOTIF is not set and IFACES are not set in bonding/vlan/bridge code,
net-genrule.sh will fall to bring up all net interfaces.
Here add a failsafe option to read IFACES from /tmp/net.ifaces
[v1->v2]: move IFACES reading from net.ifaces after bonding/vlan/bridge info
code chunks.
[v2->v3]: [ -n "$IFACES" ] should be [ -z "$IFACES" ]
Signed-off-by: Dave Young <dyoung@redhat.com>
Some network driver will take long time to initialize. We have an example
in a HP machine which take about one minute for this. The callback such as
"ip link set <dev> up" will fail, afterwards setup for network will also
fail.
Fix this by add a new function wait_for_if_link, wait the link ready before
use it.
Signed-off-by: Dave Young <dyoung@redhat.com>
set link up usually include two steps, ip link set <dev> up and
wait_for_if_up <dev>. Now do these two steps in one function linkup.
Later patch will add other code into it.
Signed-off-by: Dave Young <dyoung@redhat.com>
V2: merge patch 2/2
fix active-backup mode by adding slaves one by one
sync with the latest teamd
improve the comments
wait for team ports to come up
install /etc/libnl/classid too
This patch adds the initial support for team device [1].
A new cmdline team= is introduced for it.
Note, currently we don't support stacked devices
on/under team, it is tricky and can be added on request.
1. http://www.libteam.org/
Cc: Harald Hoyer <harald@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <amwang@redhat.com>
Commit a0be1ed removes some lines from do_static() and do_ipv6auto().
When $hostname is empty, do_static() and do_ipv6auto() will return 1
and fails to run setup_net at the last of ifup.sh
Signed-off-by: WANG Chao <chaowang@redhat.com>
It looks like ip=ibft has been busted since
25aa3c5 network: refactor stuff from netroot/parse-ip-opts to net-lib
which moved ibft parsing code out to the ibft_to_cmdline function.
The use of ifname_mac was partially replaced by a local mac, but not
completely, causing ibft_to_cmdline to abort without generating network
configuration options.
Signed-off-by: Chris Leech <cleech@redhat.com>
dhclient initqueue hook fix
setup_net is scheduled in initqueue, sometimes it does not get chance to run
So the default route will not be set properly
Add a check in initqueue/finished to resolve this issue.
Signed-off-by: Dave Young <dyoung@redhat.com>
We do not support renaming in the kernel namespace anymore (as udev does
that not anymore). So, if a user wants to use ifname, he has to rename
to a custom namespace. "eth[0-9]+" is not allowed anymore.
The patch, acfab373 - Handle upper case MAC addresses in ifname
option,takes care of only the MAC conversion to lower case in the
interface name. But the same has to be taken care for BOOTIF also.
This patch takes care of changing the BOOTIF to lower case.
Note that sed has been used in the patch instead of tr, as it is not
compulsion to install tr by dracut in the initramfs and may not be
available always.
Signed-off-by: Srinivasa T N (seenutn@linux.vnet.ibm.com)
>From 2ec9c91adbf808dbad9bdd2057d9df55a62b711f Mon Sep 17 00:00:00 2001
From: Srinivasa T N <seenutn@linux.vnet.ibm.com>
Date: Wed, 27 Jun 2012 11:20:13 +0530
Subject: [PATCH] Fixed BOOTIF for converting mac addr to lowercase
This patch adds support of vlan tagged bonding, for example,
bond0.2. In case of regression, I also tested bond0 and eth0.2,
all work fine.
Cc: Harald Hoyer <harald@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
"brd +" is not valid for ipv6. This causes the 'ip addr add' command to
fail with the message "Broadcast can be set only for IPv4 addresses".
So: don't use "brd +" for ipv6.
Don't try to be smarter than the admin configuring the machine.
Does also conflict with other methods trying to setup the interfaces,
like cmsifup.sh from the cms module.
A bridge device with only one underlying ethernet device is almost
useless, for sure we want to support a bridge with multiple
underlying devices.
This patch adds the support by extending <ethname> in the original
bridge= cmdline to a comma-separated list of ethernet interfaces.
Cc: Harald Hoyer <harald@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Anaconda used arguments of the form:
ip=<ip> gateway=<gw> netmask=<nm>
for static IP configuration. So if we get a value for "ip" that's an IP
address, look for gateway= and netmask= and related args to fill in the
ip config vars.
rd.neednet could be removed, as we can check /tmp/net.ifaces.
After this patch, kdump can bring up the NIC without
rd.neednet.
Cc: Harald Hoyer <harald@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
ifenslave is an old tool, and could be dropped,
we can use the /sys interface.
Cc: Harald Hoyer <harald@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Relax the rules for kdump, we don't specify netroot in kdump.
Cc: Harald Hoyer <harald@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
This patch adds basic vlan support in network module.
The cmdline syntax for vlan is:
vlan=<vlanname>:<phydevice>
for an example:
vlan=eth0.2:eth0
or
vlan=vlan2:eth0
See also patch 2/8.
Cc: Harald Hoyer <harald@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
This is obviously wrong, ifenslave instead of brctl is needed for bonding.
Cc: Harald Hoyer <harald@redhat.com>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Another solution could be searching in directories found at
/etc/ld.so.conf.d/*.conf or adding a new parameter. Here is a patch
which adds a new --libdirs parameter, and also a new inst_libdir_file
function which will try to expand metacharacters on each lib
directory:
inst_libdir_file "libdevmapper-event-lvm*.so"
For NetworkManager to properly take over a NFS-root system, we need to
have the interface name(s) in /tmp/net.ifaces and save the dhclient
lease. This lets the ifcfg module do its magic.
save_netinfo should properly write out /tmp/net.ifaces when needed, and
copies the dhclient files into place.
This makes sure the network is active and ready to use during the
initqueue/online hook.
It also makes it so you can run setup_net repeatedly without causing
error messages.
The "online" hook runs whenever a network interface comes online (that
is, once it's actually up and configured).
The initqueue --env argument is used to set "$netif" to the name of the
newly-online network interface.
Add new functions: all_ifaces_up, get_netroot_ip, ip_is_local, ifdown,
setup_net, set_ifname, ibft_to_cmdline
Use them in netroot.sh and parse-ip-opts.sh.
There's also a couple little unrelated cleanups.
net-lib.sh is a library of useful functions for network stuff.
More things may get added/moved here in the future.
Signed-off-by: Will Woods <wwoods@redhat.com>
Current dracut network only will be setup when netroot is used. But there are
some cases we need network even without netroot. For example kdump will need
copy vmcore to remote machine via scp or nfs mount. OTOH, if we use dracut as
a recovery system the network is helpful even root is not a network device.
This implementation is based on the manually bring up method. Here add a kernel
cmdline argument rd.neednet. If rd.neednet is set dracut will bring up network
with ifup $INTERFACE -m. If netroot is used we still keep original behavior.
Signed-off-by: Dave Young <dyoung@redhat.com>
For kdump we need scp vmcore to remote machine, the nic to be used is
not limited to netroot one. we need a feature for manually bringing up
network interface. Also it is useful for emergency shell with
ssh-client for recovery or test purpose
I implement this by adding one argument to ifup script, user can use
`/sbin/ifup eth0 -m` to bring up eth0, note ifup will regard it a
manual operation for the nic specified in 1st argument if there's
the 2nd argument.
If same nic is used for netroot the 2nd argument will be ignored,
in this case we will leave netroot bring up it automatically to
avoid side effect. And in this case hooks such as kdump will need to
execute after netroot mounted.
`ifup eth0 -m` will create /tmp/net.eth0.manualup stamp file,
later dhclient-script can check this and pass $2 to netroot,
then netroot script will bring eth0 up
Thanks for comments and suggestions from David Dillow.
Signed-off-by: Dave Young <dyoung@redhat.com>
The line "source_all netroot" was trying to source netroot hooks from
/netroot, which doesn't exist, so netroot hooks were never executed.
Signed-off-by: Will Woods <wwoods@redhat.com>
When booting with nfsroot, dracut doesn't necessarily set the initial
hostname correctly.
According to dhcp-options(5), the name may or may not be qualified with
the local domain. It goes on to say "it is preferable to use the
domain-name option to specify the domain name".
So dhclient-script needs to be able to handle the cases: a) where
host-name is fully qualified and domain name is also specified; b)
where hostname is fully qualified and the domain is not separately
specified; c) where host-name is "short" and domain-name is also
specified; and d) do its best where host-name is short but domain-name
is not specified.
The dhclient-script in initramfs does not handle case "c", apparently
the preferred situation properly, setting hostname to "short".
https://bugzilla.redhat.com/show_bug.cgi?id=756347
While the documentation states that ifname MAC addresses must be
lower case, we silently accept upper case ones and fail later on
when udev doesn't rename the device.
Instead of adding sanity checking on the MAC address just convert
it to lower case and remove the requirement completely.
Unlike "ifconfig", the "ip" command does not set a broadcast address
unless explicitly requested.
add "brd +" to make "ip" calculate the broadcast address on the fly
This patch replaces:
- {var}>... redirections with functionally identical eval construct +
explicit FDs
- ^^ and ,, case modifiers with temporary shopt
This allows us to lower minimum required bash version
to at least 3.1 (with current code).
Signed-off-by: Michal Soltys <soltys@ziu.info>
Filtering modules requires enough work that instmods() in the
next pipeline stage was rarely busy. Parallelize the two
filters which do the most work. Also fix a filename-vs-contents
mistake in net_module_filter.
--
John Reiser, jreiser@BitWagon.com
>From f4533a2ceca52c443ddebec01eeaa35d51c39c1b Mon Sep 17 00:00:00 2001
From: John Reiser <jreiser@BitWagon.com>
Date: Tue, 13 Sep 2011 17:41:43 -0700
Subject: [PATCH 1/3] Parallelize block_module_filter
Use bash "[[ string =~ pattern ]]" instead of "egrep -q".
Replace control-dominated serial fondling
for var in $(proc1); do proc2 var; done
with data-dominated parallel pipeline
proc1 | while read var; do proc2 var; done
Together this is a large savings.
[harald@redhat.com: fixed network kernel module filter]
We want all "/var/run" information to live in /dev/.run, until the real
root is mounted.
Therefore we mount a tmpfs on /dev/.run, which can/will be bind/move mounted
on /var/run later on.
Format:
bond=<bondname>[:<bondslaves>:[:<options>]]
bondslaves is a comma-separated list of physical (ethernet) interfaces.
options is a comma-separated list on bonding options (modinfo bonding for
details) in format compatible with initscripts.
If options include multi-valued arp_ip_target option, then its values
should be separated by semicolon.
bond without parameters assumes bond=bond0:eth0,eth1:balance-rr
The manpage for dhclient-script says:
Before actually configuring the address, dhclient-script should
somehow ARP for it and exit with a nonzero status if it receives a
reply.
By using arping in dracut this is very easy, since arping has a
specific option to do just that.
This patch adds STP timeout error handling with arping. It's rather
simple since it only cares about the primary interface and blindly
assumes that if no gateway is available the root server is on the
same subnet.
Harald Hoyer