Package: ifupdown
Version: 0.6.7
Severity: wishlist
Tags: patch
The ifup and ifdown programs call the various dhcp clients with relative paths,
for example, "dhclient -e -pf /var/run/..."
On my university's network, they require a Cisco-supplied Java-based program
to log on to the network. This tool requires controll of the dhclient to
refresh the IP address at a specific time during the login process. This tool
apparently looks in the output of a ps command for the names of various
supported DHCP clients, but it uses an absolute path, "/sbin/dhclient"
to find the process to communicate with, and thus cannot be used with the
dhclient process spawned by ifupdown at boot.
By making the various dhcp clients be called with absolute paths, this
problem is resolved. I don't see where it would really be a problem because
the ifup program locates the dhcp client to use by doing a command like
is_execable("/sbin/dhclient") so it wouldn't work with a client not in that
location anyway. A simple patch is below.
Thanks,
--matthew
--- ifupdown-0.6.7-orig/ifupdown.nw 2006-04-27 13:52:37.000000000 -0500
+++ ifupdown-0.6.7/ifupdown.nw 2006-04-27 13:53:31.000000000 -0500
@@ -3920,29 +3920,29 @@ method dhcp
up
[[ifconfig %iface% hw %hwaddress%]]
- dhclient3 -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
+ /sbin/dhclient3 -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
if (execable("/sbin/dhclient3"))
- dhclient -e -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
+ /sbin/dhclient -e -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
elsif (execable("/sbin/dhclient"))
- pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]] \
+ /sbin/pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]] \
elsif (execable("/sbin/pump") && mylinuxver() >= mylinux(2,1,100))
- udhcpc -n -p /var/run/udhcpc.%iface%.pid -i %iface% [[-H %hostname%]] \
+ /sbin/udhcpc -n -p /var/run/udhcpc.%iface%.pid -i %iface% [[-H
%hostname%]] \
[[-c %clientid%]] \
elsif (execable("/sbin/udhcpc") && mylinuxver() >= mylinux(2,2,0))
- dhcpcd [[-h %hostname%]] [[-i %vendor%]] [[-I %clientid%]] \
+ /sbin/dhcpcd [[-h %hostname%]] [[-i %vendor%]] [[-I %clientid%]] \
[[-l %leasetime%]] %iface% \
elsif (execable("/sbin/dhcpcd"))
down
- dhclient3 -r -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
+ /sbin/dhclient3 -r -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
if (execable("/sbin/dhclient3"))
cat /var/run/dhclient.%iface%.pid | xargs -i kill -TERM {} \
elsif (execable("/sbin/dhclient"))
- pump -i %iface% -r \
+ /sbin/pump -i %iface% -r \
elsif (execable("/sbin/pump") && mylinuxver() >= mylinux(2,1,100))
cat /var/run/udhcpc.%iface%.pid | xargs -i kill -TERM {} \
elsif (execable("/sbin/udhcpc"))
- dhcpcd -k %iface% \
+ /sbin/dhcpcd -k %iface% \
elsif (execable("/sbin/dhcpcd"))
ifconfig %iface% down
--- ifupdown-0.6.7-orig/inet.defn 2006-04-27 13:52:37.000000000 -0500
+++ ifupdown-0.6.7/inet.defn 2006-04-27 13:54:18.000000000 -0500
@@ -75,29 +75,29 @@ method dhcp
up
[[ifconfig %iface% hw %hwaddress%]]
- dhclient3 -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
+ /sbin/dhclient3 -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
if (execable("/sbin/dhclient3"))
- dhclient -e -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
+ /sbin/dhclient -e -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
elsif (execable("/sbin/dhclient"))
- pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]] \
+ /sbin/pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]] \
elsif (execable("/sbin/pump") && mylinuxver() >= mylinux(2,1,100))
- udhcpc -n -p /var/run/udhcpc.%iface%.pid -i %iface% [[-H %hostname%]] \
+ /sbin/udhcpc -n -p /var/run/udhcpc.%iface%.pid -i %iface% [[-H
%hostname%]] \
[[-c %clientid%]] \
elsif (execable("/sbin/udhcpc") && mylinuxver() >= mylinux(2,2,0))
- dhcpcd [[-h %hostname%]] [[-i %vendor%]] [[-I %clientid%]] \
+ /sbin/dhcpcd [[-h %hostname%]] [[-i %vendor%]] [[-I %clientid%]] \
[[-l %leasetime%]] %iface% \
elsif (execable("/sbin/dhcpcd"))
down
- dhclient3 -r -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
+ /sbin/dhclient3 -r -pf /var/run/dhclient.%iface%.pid -lf
/var/run/dhclient.%iface%.leases %iface% \
if (execable("/sbin/dhclient3"))
cat /var/run/dhclient.%iface%.pid | xargs -i kill -TERM {} \
elsif (execable("/sbin/dhclient"))
- pump -i %iface% -r \
+ /sbin/pump -i %iface% -r \
elsif (execable("/sbin/pump") && mylinuxver() >= mylinux(2,1,100))
cat /var/run/udhcpc.%iface%.pid | xargs -i kill -TERM {} \
elsif (execable("/sbin/udhcpc"))
- dhcpcd -k %iface% \
+ /sbin/dhcpcd -k %iface% \
elsif (execable("/sbin/dhcpcd"))
ifconfig %iface% down
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16-mrm-20060427-1
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Versions of packages ifupdown depends on:
ii debconf [debconf-2.0] 1.5.0 Debian configuration management sy
ii libc6 2.3.6-7 GNU C Library: Shared libraries
ii net-tools 1.60-17 The NET-3 networking toolkit
ifupdown recommends no packages.
-- debconf information excluded
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