improve_check_for_bond_master_in_install_bonding_driver

The current grep check (fgrep -sqx) in install_bonding_driver, to determine
whether bond master exists, fails when there are multiple bond masters.
The fix assumes that multiple bond masters are on different lines in the file
"/sys/class/net/bonding_masters", while they are in fact on the same line.
Since fgrep -sqx checks for the entire line,it will never match any one bond
master within the line and always fail if there are multiple bonds.

This patch improves the check by creating a new function, bond_master_exists()
to handle this and other conditions.

Orabug: 19897586

Signed-off-by: Ashish Samant <ashish.samant@oracle.com>
Signed-off-by: John Haxby <john.haxby@oracle.com>
Acked-by: Mukesh Kacker <mukesh.kacker@oracle.com>

Conflicts:
	sysconfig/network-scripts/network-functions

1 files changed, 14 insertions, 2 deletions

diff --git a/sysconfig/network-scripts/network-functions b/sysconfig/network-scripts/network-functions
index 8d47e4ff..85a8880b 100644
--- a/sysconfig/network-scripts/network-functions
+++ b/sysconfig/network-scripts/network-functions
@@ -429,10 +429,22 @@ phy_wireless_device ()
 	cat /sys/class/net/$1/phy80211/name
 }
 
+bond_master_exists ()
+{
+    local bond_name
+    [ -z "${1}" ] && return 1
+    [ ! -f /sys/class/net/bonding_masters ] && return 1
+
+    for bond_name in $(< /sys/class/net/bonding_masters); do
+       [ "${bond_name}" == "${1}" ] && return 0
+    done
+    return 1
+}
+
 install_bonding_driver ()
 {
-   [ ! -f /sys/class/net/bonding_masters ] && ( modprobe bonding || return 1 )
-   if ! grep -sqw "$1" /sys/class/net/bonding_masters; then
+   if ! bond_master_exists ${1}; then
+       modprobe bonding || return 1
        echo "+$1" > /sys/class/net/bonding_masters 2>/dev/null
    fi
    (