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Bug 1223524

Summary: error return from iwconfig has changed
Product: Red Hat Enterprise Linux 7 Reporter: Alfred Ganz <alfred-ganz+bugzilla>
Component: initscriptsAssignee: initscripts Maintenance Team <initscripts-maint-list>
Status: CLOSED ERRATA QA Contact: qe-baseos-daemons
Severity: high Docs Contact:
Priority: high    
Version: 7.1CC: alfred-ganz+bugzilla, fleitner, jscotka, lnykryn
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: initscripts-9.49.26-1.el7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-11-19 11:33:51 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
a patch for /etc/sysconfig/network-scripts/network-functions none

Description Alfred Ganz 2015-05-20 18:25:15 UTC 
Created attachment 1027825 [details]
a patch for /etc/sysconfig/network-scripts/network-functions

Description of problem:
running: "systemctl start network" without NetworkManager installed
fails for non-wireless interfaces because is_wireless_device()
in /etc/sysconfig/network-scripts/network-functions
doesn't return a correct answer for non-wireless interfaces.
This is because iwconfig seems to return "Not connected."
instead of "no wireless extensions" for non-wireless interfaces.

Version-Release number of selected component (if applicable):
This applies to 7.0 and 7.1

How reproducible:
always

Steps to Reproduce:
1) disable NetworkManager
2) disable network
3) define a non-wireless interface with ifcfg-* that has a fixed IP_ADDR
4) reboot
5) start network manually

Actual results:
creating the non-wireless interface fails

Expected results:
the non-wireless is created

Additional info:
The included patch works with the new iwconfig return for a non-wireless
interface while still supporting the older return
Comment 3 Lukáš Nykrýn 2015-07-01 10:52:02 UTC 
https://git.fedorahosted.org/cgit/initscripts.git/commit/?h=rhel7-branch&id=52edc91a51384af88dcb604c0e8d48c7c3475795
Comment 5 Flavio Leitner 2015-08-04 19:43:33 UTC 
This actually breaks ifup on vlans.
p5p1 is a ethernet device and p5p1.200 is the vlan on top of it:

initscripts-9.49.26-1.el7.x86_64
iw-3.10-6.el7.x86_64

# /usr/sbin/iw dev p5p1.200 info ; echo $?
nl80211 not found.
1

[...]
+ REALDEVICE=p5p1.200
+ '[' -z '' ']'
+ SYSCTLDEVICE=p5p1/200
+ '[' p5p1.200 '!=' p5p1.200 ']'
+ ISALIAS=no
+ is_false no
+ case "$1" in
+ return 0
+ '[' none = bootp -o none = dhcp ']'
+ is_available p5p1.200
+ '[' -z p5p1.200 ']'
+ '[' -d /sys/class/net/p5p1.200 ']'
+ return 0
+ '[' -n '' ']'
+ '[' OVSPort = Bridge ']'
+ '[' OVSPort = Tap ']'
+ '[' -n '' ']'
+ is_available_wait p5p1.200
+ '[' -z p5p1.200 ']'
+ local retry=
+ is_available p5p1.200
+ '[' -z p5p1.200 ']'
+ '[' -d /sys/class/net/p5p1.200 ']'
+ return 0
+ ret=0
+ '[' 00 -ne 1 ']'
+ return 0
+ '[' -n '' ']'
+ '[' -n '' ']'
+ is_wireless_device p5p1.200
+ '[' -x /usr/sbin/iw ']'
+ LC_ALL=C
+ /usr/sbin/iw dev p5p1.200 info
+ return 0
+ . ./ifup-wireless
++ IW=iw
++ '[' p5p1.200 -a '' ']'
++ exit

As a result the VLAN device remains DOWN.
fbl
Comment 6 Lukáš Nykrýn 2015-08-06 08:21:14 UTC 
can you lease try this patch https://git.fedorahosted.org/cgit/initscripts.git/commit/?id=55fd940cab529e1698fd2c836e3d91159f516a9c
Comment 7 Flavio Leitner 2015-08-06 17:52:20 UTC 
Patch looks good.
...
+ '[' -n '' ']'
+ '[' -n '' ']'
+ is_wireless_device p5p1.200
+ '[' -x /usr/sbin/iw ']'
+ LC_ALL=C
+ /usr/sbin/iw dev p5p1.200 info
+ return 1
+ '[' -n '' ']'
+ '[' '' = yes -a no = no -a '' '!=' '' ']'
+ '[' no = no ']'
+ is_bonding_device p5p1.200
...

Thanks
Comment 9 errata-xmlrpc 2015-11-19 11:33:51 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-2134.html