Add udhcpc utility script

[petitboot] / utils / udhcpc

diff --git a/utils/udhcpc b/utils/udhcpc
new file mode 100644 (file)
index 0000000..bc0f759
--- /dev/null
+++ b/utils/udhcpc
@@ -0,0 +1,38 @@
+#!/bin/sh
+#
+# Petitboot udhcpc user script.  Should be run by udhcpc when
+# there is a change in the dhcp configuration.  For more info
+# see the udhcpc man page and the Linux kernel source file
+# Documentation/filesystems/nfsroot.txt.
+#
+
+PBOOT_USER_EVENT_SOCKET="/tmp/petitboot.ev"
+log="pb-udhcpc.log"
+
+pb_add () {
+       k_server_ip=${rootpath%%:*}
+       k_root_dir=${rootpath#*:}
+
+       [ ${k_server_ip} != ${rootpath} ] || k_server_ip=${serverid}
+
+       echo -ne "add@/net/${interface}\0name=netboot\0image=tftp://${siaddr}${boot_file}\0args=root=/dev/nfs ip=any nfsroot=${k_server_ip}:${k_root_dir}\0" | pb-event
+}
+
+pb_remove () {
+       echo -ne "remove@/net/${interface}\0name=netboot\0" | pb-event
+}
+
+case "$1" in
+bound | renew)
+       pb_add
+       ;;
+deconfig)
+       pb_remove
+       ;;
+*)
+       ;;
+esac
+
+echo "--- $1 ---" >> ${log}
+set >> ${log}
+echo "---------------" >> ${log}