[PATCH v3] kdump-module-setup.sh: Handle static IPs defined in NetworkManager gui

[Marc Milgram]

NetworkManager changed the format of ifcfg-device files.  They may define
static IP addresses with the following format:
    IPADDR0=192.168.122.100
    PREFIX0=24

There may be up to 255 ip addresses for a network device - each with a unique
number tagged to the end of IPADDR and PREFIX.

Prior to this fix, kdump only handled static ip addresses defined with
   IPADDR=192.168.122.100
   PREFIX=24

ie. without the number.

The solution is to use "ip" commands to find the correct network information.

Tested with both static and dynamic IP addresses.

v2: Fixed a local variable that was set incorrectly
v3: Fix iscsi case

Signed-off-by: Marc Milgram <mmilgram(a)redhat.com&gt;

---
diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
index 2a16900..87ad072 100755
--- a/dracut-module-setup.sh
+++ b/dracut-module-setup.sh
@@ -67,14 +67,17 @@ kdump_setup_dns() {
 }
 
 #$1: netdev name
-#checking /etc/sysconfig/network-scripts/ifcfg-$1,
+#$2: srcaddr
 #if it use static ip echo it, or echo null
 kdump_static_ip() {
-    . /etc/sysconfig/network-scripts/ifcfg-$1
-    if [ -n "$IPADDR" ]; then
-       [ -z "$NETMASK" -a -n "$PREFIX" ] && \
-           NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
-       echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
+    local _netmask _gateway
+    local _netdev="$1" _srcaddr="$2"
+    local _ipaddr=$(ip addr show dev $_netdev permanent | \
+                    awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
+    if [ -n "$_ipaddr" ]; then
+       _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
+       _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}')
+       echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
     fi
 }
 
@@ -181,7 +184,7 @@ kdump_setup_znet() {
 
 # Setup dracut to bringup a given network interface
 kdump_setup_netdev() {
-    local _netdev=$1
+    local _netdev=$1 _srcaddr=$2
     local _static _proto _ip_conf _ip_opts _ifname_opts
 
     if [ "$(uname -m)" = "s390x" ]; then
@@ -189,7 +192,7 @@ kdump_setup_netdev() {
     fi
 
     _netmac=$(kdump_get_mac_addr $_netdev)
-    _static=$(kdump_static_ip $_netdev)
+    _static=$(kdump_static_ip $_netdev $_srcaddr)
     if [ -n "$_static" ]; then
         _proto=none
     else
@@ -223,8 +226,9 @@ kdump_setup_netdev() {
 
 #Function:kdump_install_net
 #$1: config values of net line in kdump.conf
+#$2: srcaddr of network device
 kdump_install_net() {
-    local _server _netdev
+    local _server _netdev _srcaddr
     local config_val="$1"
 
     _server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`
@@ -239,13 +243,15 @@ kdump_install_net() {
     if [ -n "`echo $_netdev | grep via`" ]
     then
         # we are going to a different subnet
+        _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1`
         _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
     else
         # we are on the same subnet
+        _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1`
         _netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
     fi
 
-    kdump_setup_netdev "${_netdev}"
+    kdump_setup_netdev "${_netdev}" "${_srcaddr}"
 
     #save netdev used for kdump as cmdline
     # Whoever calling kdump_install_net() is setting up the default gateway,
@@ -364,6 +370,7 @@ kdump_setup_iscsi_device() {
     local username; local password; local userpwd_str;
     local username_in; local password_in; local userpwd_in_str;
     local netdev
+    local srcaddr
     local idev
     local netroot_str ; local initiator_str;
     local netroot_conf="${initdir}/etc/cmdline.d/50iscsi.conf"
@@ -398,9 +405,11 @@ kdump_setup_iscsi_device() {
     [ -n "$username_in" ] &&
userpwd_in_str=":$username_in:$password_in"
 
     netdev=$(/sbin/ip route get to ${tgt_ipaddr} | \
-        sed 's|.*dev \(.*\).*|\1|g' | awk '{ print $1; exit }')
+        sed 's|.*dev \(.*\).*|\1|g')
+    srcaddr=$(echo $netdev | awk '{ print $3; exit }')
+    netdev=$(echo $netdev | awk '{ print $1; exit }')
 
-    kdump_setup_netdev $netdev
+    kdump_setup_netdev $netdev $srcaddr
 
     # prepare netroot= command line
     # FIXME: IPV6 addresses require explicit [] around $tgt_ipaddr

[Vivek Goyal]

On Tue, May 27, 2014 at 10:45:40AM -0400, Marc Milgram wrote:
>  NetworkManager changed the format of ifcfg-device files.  They may
> define
>  static IP addresses with the following format:
>      IPADDR0=192.168.122.100
>      PREFIX0=24
>  
>  There may be up to 255 ip addresses for a network device - each with a unique
>  number tagged to the end of IPADDR and PREFIX.
>  
>  Prior to this fix, kdump only handled static ip addresses defined with
>     IPADDR=192.168.122.100
>     PREFIX=24
>  
>  ie. without the number.
>  
>  The solution is to use "ip" commands to find the correct network information.
>  
>  Tested with both static and dynamic IP addresses.
>  
>  v2: Fixed a local variable that was set incorrectly
>  v3: Fix iscsi case
>  
>  Signed-off-by: Marc Milgram <mmilgram(a)redhat.com&gt; 
Once again,

Acked-by: Vivek Goyal <vgoyal(a)redhat.com&gt;

Thanks
Vivek

>  
>  ---
>  diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
>  index 2a16900..87ad072 100755
>  --- a/dracut-module-setup.sh
>  +++ b/dracut-module-setup.sh
>  @@ -67,14 +67,17 @@ kdump_setup_dns() {
>   }
>   
>   #$1: netdev name
>  -#checking /etc/sysconfig/network-scripts/ifcfg-$1,
>  +#$2: srcaddr
>   #if it use static ip echo it, or echo null
>   kdump_static_ip() {
>  -    . /etc/sysconfig/network-scripts/ifcfg-$1
>  -    if [ -n "$IPADDR" ]; then
>  -       [ -z "$NETMASK" -a -n "$PREFIX" ] && \
>  -           NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
>  -       echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
>  +    local _netmask _gateway
>  +    local _netdev="$1" _srcaddr="$2"
>  +    local _ipaddr=$(ip addr show dev $_netdev permanent | \
>  +                    awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
>  +    if [ -n "$_ipaddr" ]; then
>  +       _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
>  +       _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}')
>  +       echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
>       fi
>   }
>   
>  @@ -181,7 +184,7 @@ kdump_setup_znet() {
>   
>   # Setup dracut to bringup a given network interface
>   kdump_setup_netdev() {
>  -    local _netdev=$1
>  +    local _netdev=$1 _srcaddr=$2
>       local _static _proto _ip_conf _ip_opts _ifname_opts
>   
>       if [ "$(uname -m)" = "s390x" ]; then
>  @@ -189,7 +192,7 @@ kdump_setup_netdev() {
>       fi
>   
>       _netmac=$(kdump_get_mac_addr $_netdev)
>  -    _static=$(kdump_static_ip $_netdev)
>  +    _static=$(kdump_static_ip $_netdev $_srcaddr)
>       if [ -n "$_static" ]; then
>           _proto=none
>       else
>  @@ -223,8 +226,9 @@ kdump_setup_netdev() {
>   
>   #Function:kdump_install_net
>   #$1: config values of net line in kdump.conf
>  +#$2: srcaddr of network device
>   kdump_install_net() {
>  -    local _server _netdev
>  +    local _server _netdev _srcaddr
>       local config_val="$1"
>   
>       _server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`
>  @@ -239,13 +243,15 @@ kdump_install_net() {
>       if [ -n "`echo $_netdev | grep via`" ]
>       then
>           # we are going to a different subnet
>  +        _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1`
>           _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
>       else
>           # we are on the same subnet
>  +        _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1`
>           _netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
>       fi
>   
>  -    kdump_setup_netdev "${_netdev}"
>  +    kdump_setup_netdev "${_netdev}" "${_srcaddr}"
>   
>       #save netdev used for kdump as cmdline
>       # Whoever calling kdump_install_net() is setting up the default gateway,
>  @@ -364,6 +370,7 @@ kdump_setup_iscsi_device() {
>       local username; local password; local userpwd_str;
>       local username_in; local password_in; local userpwd_in_str;
>       local netdev
>  +    local srcaddr
>       local idev
>       local netroot_str ; local initiator_str;
>       local netroot_conf="${initdir}/etc/cmdline.d/50iscsi.conf"
>  @@ -398,9 +405,11 @@ kdump_setup_iscsi_device() {
>       [ -n "$username_in" ] &&
> userpwd_in_str=":$username_in:$password_in"
>   
>       netdev=$(/sbin/ip route get to ${tgt_ipaddr} | \
>  -        sed 's|.*dev \(.*\).*|\1|g' | awk '{ print $1; exit }')
>  +        sed 's|.*dev \(.*\).*|\1|g')
>  +    srcaddr=$(echo $netdev | awk '{ print $3; exit }')
>  +    netdev=$(echo $netdev | awk '{ print $1; exit }')
>   
>  -    kdump_setup_netdev $netdev
>  +    kdump_setup_netdev $netdev $srcaddr
>   
>       # prepare netroot= command line
>       # FIXME: IPV6 addresses require explicit [] around $tgt_ipaddr
>  _______________________________________________
>  kexec mailing list
>  kexec(a)lists.fedoraproject.org
>  https://lists.fedoraproject.org/mailman/listinfo/kexec

[Baoquan He]

On 05/27/14 at 10:45am, Marc Milgram wrote:
>  NetworkManager changed the format of ifcfg-device files.  They may
> define
>  static IP addresses with the following format:
>      IPADDR0=192.168.122.100
>      PREFIX0=24
>  
>  There may be up to 255 ip addresses for a network device - each with a unique
>  number tagged to the end of IPADDR and PREFIX.
>  
>  Prior to this fix, kdump only handled static ip addresses defined with
>     IPADDR=192.168.122.100
>     PREFIX=24
>  
>  ie. without the number.
>  
>  The solution is to use "ip" commands to find the correct network information.
>  
>  Tested with both static and dynamic IP addresses.
>  
>  v2: Fixed a local variable that was set incorrectly
>  v3: Fix iscsi case
>  
>  Signed-off-by: Marc Milgram <mmilgram(a)redhat.com&gt; 

Thanks, Marc.

Acked-by: Baoquan He <bhe(a)redhat.com&gt;

>  
>  ---
>  diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
>  index 2a16900..87ad072 100755
>  --- a/dracut-module-setup.sh
>  +++ b/dracut-module-setup.sh
>  @@ -67,14 +67,17 @@ kdump_setup_dns() {
>   }
>   
>   #$1: netdev name
>  -#checking /etc/sysconfig/network-scripts/ifcfg-$1,
>  +#$2: srcaddr
>   #if it use static ip echo it, or echo null
>   kdump_static_ip() {
>  -    . /etc/sysconfig/network-scripts/ifcfg-$1
>  -    if [ -n "$IPADDR" ]; then
>  -       [ -z "$NETMASK" -a -n "$PREFIX" ] && \
>  -           NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
>  -       echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
>  +    local _netmask _gateway
>  +    local _netdev="$1" _srcaddr="$2"
>  +    local _ipaddr=$(ip addr show dev $_netdev permanent | \
>  +                    awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
>  +    if [ -n "$_ipaddr" ]; then
>  +       _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
>  +       _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}')
>  +       echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
>       fi
>   }
>   
>  @@ -181,7 +184,7 @@ kdump_setup_znet() {
>   
>   # Setup dracut to bringup a given network interface
>   kdump_setup_netdev() {
>  -    local _netdev=$1
>  +    local _netdev=$1 _srcaddr=$2
>       local _static _proto _ip_conf _ip_opts _ifname_opts
>   
>       if [ "$(uname -m)" = "s390x" ]; then
>  @@ -189,7 +192,7 @@ kdump_setup_netdev() {
>       fi
>   
>       _netmac=$(kdump_get_mac_addr $_netdev)
>  -    _static=$(kdump_static_ip $_netdev)
>  +    _static=$(kdump_static_ip $_netdev $_srcaddr)
>       if [ -n "$_static" ]; then
>           _proto=none
>       else
>  @@ -223,8 +226,9 @@ kdump_setup_netdev() {
>   
>   #Function:kdump_install_net
>   #$1: config values of net line in kdump.conf
>  +#$2: srcaddr of network device
>   kdump_install_net() {
>  -    local _server _netdev
>  +    local _server _netdev _srcaddr
>       local config_val="$1"
>   
>       _server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`
>  @@ -239,13 +243,15 @@ kdump_install_net() {
>       if [ -n "`echo $_netdev | grep via`" ]
>       then
>           # we are going to a different subnet
>  +        _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1`
>           _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
>       else
>           # we are on the same subnet
>  +        _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1`
>           _netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
>       fi
>   
>  -    kdump_setup_netdev "${_netdev}"
>  +    kdump_setup_netdev "${_netdev}" "${_srcaddr}"
>   
>       #save netdev used for kdump as cmdline
>       # Whoever calling kdump_install_net() is setting up the default gateway,
>  @@ -364,6 +370,7 @@ kdump_setup_iscsi_device() {
>       local username; local password; local userpwd_str;
>       local username_in; local password_in; local userpwd_in_str;
>       local netdev
>  +    local srcaddr
>       local idev
>       local netroot_str ; local initiator_str;
>       local netroot_conf="${initdir}/etc/cmdline.d/50iscsi.conf"
>  @@ -398,9 +405,11 @@ kdump_setup_iscsi_device() {
>       [ -n "$username_in" ] &&
> userpwd_in_str=":$username_in:$password_in"
>   
>       netdev=$(/sbin/ip route get to ${tgt_ipaddr} | \
>  -        sed 's|.*dev \(.*\).*|\1|g' | awk '{ print $1; exit }')
>  +        sed 's|.*dev \(.*\).*|\1|g')
>  +    srcaddr=$(echo $netdev | awk '{ print $3; exit }')
>  +    netdev=$(echo $netdev | awk '{ print $1; exit }')
>   
>  -    kdump_setup_netdev $netdev
>  +    kdump_setup_netdev $netdev $srcaddr
>   
>       # prepare netroot= command line
>       # FIXME: IPV6 addresses require explicit [] around $tgt_ipaddr
>  _______________________________________________
>  kexec mailing list
>  kexec(a)lists.fedoraproject.org
>  https://lists.fedoraproject.org/mailman/listinfo/kexec

[WANG Chao]

On 05/27/14 at 10:45am, Marc Milgram wrote:
>  NetworkManager changed the format of ifcfg-device files.  They may
> define
>  static IP addresses with the following format:
>      IPADDR0=192.168.122.100
>      PREFIX0=24
>  
>  There may be up to 255 ip addresses for a network device - each with a unique
>  number tagged to the end of IPADDR and PREFIX.
>  
>  Prior to this fix, kdump only handled static ip addresses defined with
>     IPADDR=192.168.122.100
>     PREFIX=24
>  
>  ie. without the number.
>  
>  The solution is to use "ip" commands to find the correct network information.
>  
>  Tested with both static and dynamic IP addresses.
>  
>  v2: Fixed a local variable that was set incorrectly
>  v3: Fix iscsi case
>  
>  Signed-off-by: Marc Milgram <mmilgram(a)redhat.com&gt; 

Thanks for update. I'll push it shortly.

Acked-by: WANG Chao <chaowang(a)redhat.com&gt;

>  
>  ---
>  diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
>  index 2a16900..87ad072 100755
>  --- a/dracut-module-setup.sh
>  +++ b/dracut-module-setup.sh
>  @@ -67,14 +67,17 @@ kdump_setup_dns() {
>   }
>   
>   #$1: netdev name
>  -#checking /etc/sysconfig/network-scripts/ifcfg-$1,
>  +#$2: srcaddr
>   #if it use static ip echo it, or echo null
>   kdump_static_ip() {
>  -    . /etc/sysconfig/network-scripts/ifcfg-$1
>  -    if [ -n "$IPADDR" ]; then
>  -       [ -z "$NETMASK" -a -n "$PREFIX" ] && \
>  -           NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
>  -       echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
>  +    local _netmask _gateway
>  +    local _netdev="$1" _srcaddr="$2"
>  +    local _ipaddr=$(ip addr show dev $_netdev permanent | \
>  +                    awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
>  +    if [ -n "$_ipaddr" ]; then
>  +       _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
>  +       _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}')
>  +       echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
>       fi
>   }
>   
>  @@ -181,7 +184,7 @@ kdump_setup_znet() {
>   
>   # Setup dracut to bringup a given network interface
>   kdump_setup_netdev() {
>  -    local _netdev=$1
>  +    local _netdev=$1 _srcaddr=$2
>       local _static _proto _ip_conf _ip_opts _ifname_opts
>   
>       if [ "$(uname -m)" = "s390x" ]; then
>  @@ -189,7 +192,7 @@ kdump_setup_netdev() {
>       fi
>   
>       _netmac=$(kdump_get_mac_addr $_netdev)
>  -    _static=$(kdump_static_ip $_netdev)
>  +    _static=$(kdump_static_ip $_netdev $_srcaddr)
>       if [ -n "$_static" ]; then
>           _proto=none
>       else
>  @@ -223,8 +226,9 @@ kdump_setup_netdev() {
>   
>   #Function:kdump_install_net
>   #$1: config values of net line in kdump.conf
>  +#$2: srcaddr of network device
>   kdump_install_net() {
>  -    local _server _netdev
>  +    local _server _netdev _srcaddr
>       local config_val="$1"
>   
>       _server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`
>  @@ -239,13 +243,15 @@ kdump_install_net() {
>       if [ -n "`echo $_netdev | grep via`" ]
>       then
>           # we are going to a different subnet
>  +        _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1`
>           _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
>       else
>           # we are on the same subnet
>  +        _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1`
>           _netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
>       fi
>   
>  -    kdump_setup_netdev "${_netdev}"
>  +    kdump_setup_netdev "${_netdev}" "${_srcaddr}"
>   
>       #save netdev used for kdump as cmdline
>       # Whoever calling kdump_install_net() is setting up the default gateway,
>  @@ -364,6 +370,7 @@ kdump_setup_iscsi_device() {
>       local username; local password; local userpwd_str;
>       local username_in; local password_in; local userpwd_in_str;
>       local netdev
>  +    local srcaddr
>       local idev
>       local netroot_str ; local initiator_str;
>       local netroot_conf="${initdir}/etc/cmdline.d/50iscsi.conf"
>  @@ -398,9 +405,11 @@ kdump_setup_iscsi_device() {
>       [ -n "$username_in" ] &&
> userpwd_in_str=":$username_in:$password_in"
>   
>       netdev=$(/sbin/ip route get to ${tgt_ipaddr} | \
>  -        sed 's|.*dev \(.*\).*|\1|g' | awk '{ print $1; exit }')
>  +        sed 's|.*dev \(.*\).*|\1|g')
>  +    srcaddr=$(echo $netdev | awk '{ print $3; exit }')
>  +    netdev=$(echo $netdev | awk '{ print $1; exit }')
>   
>  -    kdump_setup_netdev $netdev
>  +    kdump_setup_netdev $netdev $srcaddr
>   
>       # prepare netroot= command line
>       # FIXME: IPV6 addresses require explicit [] around $tgt_ipaddr
>  _______________________________________________
>  kexec mailing list
>  kexec(a)lists.fedoraproject.org
>  https://lists.fedoraproject.org/mailman/listinfo/kexec

[Baoquan He]

On 05/27/14 at 10:45am, Marc Milgram wrote:
>  diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
>  index 2a16900..87ad072 100755
>  --- a/dracut-module-setup.sh
>  +++ b/dracut-module-setup.sh
>  @@ -67,14 +67,17 @@ kdump_setup_dns() {
>   }
>   
>   #$1: netdev name
>  -#checking /etc/sysconfig/network-scripts/ifcfg-$1,
>  +#$2: srcaddr
>   #if it use static ip echo it, or echo null
>   kdump_static_ip() {
>  -    . /etc/sysconfig/network-scripts/ifcfg-$1
>  -    if [ -n "$IPADDR" ]; then
>  -       [ -z "$NETMASK" -a -n "$PREFIX" ] && \
>  -           NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
>  -       echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
>  +    local _netmask _gateway
>  +    local _netdev="$1" _srcaddr="$2"
>  +    local _ipaddr=$(ip addr show dev $_netdev permanent | \
>  +                    awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
>  +    if [ -n "$_ipaddr" ]; then
>  +       _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2) 
Hi Marc,

Here in this way, each netdev will get a gateway. I remember you told me
that if multiple gateways are specified only the last is available.

So if multiple NIC involved in kdump kernel, there's a trouble here.

>  +       _gateway=$(ip route list dev $_netdev | awk '/^default
> /{print $3}')
>  +       echo -n "${_srcaddr}::${_gateway}:${_netmask}::" 
I just rethink about this when working on static route issue.

Baoquan
Thanks

[Baoquan He]

On 06/24/14 at 04:46pm, Baoquan He wrote:
>  On 05/27/14 at 10:45am, Marc Milgram wrote:
>  > diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
>  > index 2a16900..87ad072 100755
>  > --- a/dracut-module-setup.sh
>  > +++ b/dracut-module-setup.sh
>  > @@ -67,14 +67,17 @@ kdump_setup_dns() {
>  >  }
>  >  
>  >  #$1: netdev name
>  > -#checking /etc/sysconfig/network-scripts/ifcfg-$1,
>  > +#$2: srcaddr
>  >  #if it use static ip echo it, or echo null
>  >  kdump_static_ip() {
>  > -    . /etc/sysconfig/network-scripts/ifcfg-$1
>  > -    if [ -n "$IPADDR" ]; then
>  > -       [ -z "$NETMASK" -a -n "$PREFIX" ] && \
>  > -           NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
>  > -       echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
>  > +    local _netmask _gateway
>  > +    local _netdev="$1" _srcaddr="$2"
>  > +    local _ipaddr=$(ip addr show dev $_netdev permanent | \
>  > +                    awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
>  > +    if [ -n "$_ipaddr" ]; then
>  > +       _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
>  
>  Hi Marc,
>  
>  Here in this way, each netdev will get a gateway. I remember you told me
>  that if multiple gateways are specified only the last is available.
>  
>  So if multiple NIC involved in kdump kernel, there's a trouble here.
>  
>  > +       _gateway=$(ip route list dev $_netdev | awk '/^default /{print
> $3}')
>  > +       echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
>  
>  I just rethink about this when working on static route issue. 
I was wrong, please ignore it. Since you use "default" to filter this.

>  
>  Baoquan
>  Thanks
>  
>  
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