[PATCH 3/3] add function wait_for_route_ok

[Dave Young <dyoung@xxxxxxxxxx>]

Manually setuping nic through udev is not always done when
we want network access. Here add a function wait_for_route_ok to
wait and make sure the network is accesible

Signed-off-by: Dave Young <dyoung@xxxxxxxxxx>
---
 modules.d/99base/dracut-lib.sh |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh
index 85d4925..c85a019 100755
--- a/modules.d/99base/dracut-lib.sh
+++ b/modules.d/99base/dracut-lib.sh
@@ -392,6 +392,17 @@ wait_for_if_up() {
     return 1
 }
 
+wait_for_route_ok() {
+    local cnt=0
+    while [ $cnt -lt 200 ]; do
+        li=$(ip route show)
+        [[ "$li" =~ "$1" ]] && return 0
+        sleep 0.1
+        cnt=$(($cnt+1))
+    done
+    return 1
+}
+
 # root=nfs:[<server-ip>:]<root-dir>[:<nfs-options>]
 # root=nfs4:[<server-ip>:]<root-dir>[:<nfs-options>]
 nfsroot_to_var() {
-- 
1.7.7.5

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