add function wait_for_route_ok

PATCH New Dave Young 1 participant 1 message Feb 16, 2012

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Dave Young

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2012-02-16 01:36 UTC #0 lore raw

PATCH v2 1/1 add function wait_for_route_ok

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

[v1 -> v2]:
Harald: don't use bash syntax
Add check for [ -n "$li" ] because ip route show will show nothing probably

Signed-off-by Dave Young <[email protected]>

---
 modules.d/99base/dracut-lib.sh |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

modules.d/99base/dracut-lib.sh +11 -0

index 6b70adf..afd366e 100755
@@ -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)
+        [ -n "$li" ] && [ -z "${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() {

Signature · 1 line

1.7.7.5