From 3541f12849b277a2405a4d3bf692cf62f2045126 Mon Sep 17 00:00:00 2001
From: torben
Date: Thu, 9 Apr 2015 03:27:39 +0200
Subject: Adding functions library.

---
 testModule/busybox         | Bin 0 -> 931664 bytes
 testModule/library.sh      |  38 ++++++++++++++++++++++++++++++++++++++
 testModule/module-setup.sh |   5 ++++-
 testModule/parse-ip.sh     |  30 ++++++++++--------------------
 4 files changed, 52 insertions(+), 21 deletions(-)
 create mode 100755 testModule/busybox
 create mode 100644 testModule/library.sh

(limited to 'testModule')

diff --git a/testModule/busybox b/testModule/busybox
new file mode 100755
index 00000000..1212ae20
Binary files /dev/null and b/testModule/busybox differ
diff --git a/testModule/library.sh b/testModule/library.sh
new file mode 100644
index 00000000..d3f97aff
--- /dev/null
+++ b/testModule/library.sh
@@ -0,0 +1,38 @@
+cat /proc/cmdline >/tmp/cmdline
+
+replace_cmd() {
+    sed --regexp-extended "s/$1=[^ ]*/$1=$2/g" /tmp/cmdline -i
+}
+
+getcmdline() {
+    local _line
+    local _i
+    local CMDLINE_ETC_D
+    local CMDLINE_ETC
+    unset _line
+
+    if [ -e /etc/cmdline ]; then
+        while read -r _line; do
+            CMDLINE_ETC="$CMDLINE_ETC $_line";
+        done </etc/cmdline;
+    fi
+    for _i in /etc/cmdline.d/*.conf; do
+        [ -e "$_i" ] || continue
+        while read -r _line; do
+            CMDLINE_ETC_D="$CMDLINE_ETC_D $_line";
+        done <"$_i";
+    done
+    ## NOTE: We modify this to be able to alter kernel command line arguments
+    ## at runtime.
+    if [ -e /tmp/cmdline ]; then
+        read -r CMDLINE </tmp/cmdline;
+        CMDLINE="$CMDLINE_ETC_D $CMDLINE_ETC $CMDLINE"
+    else
+    ##
+        if [ -e /proc/cmdline ]; then
+            read -r CMDLINE </proc/cmdline;
+            CMDLINE="$CMDLINE_ETC_D $CMDLINE_ETC $CMDLINE"
+        fi
+    fi
+    printf "%s" "$CMDLINE"
+}
diff --git a/testModule/module-setup.sh b/testModule/module-setup.sh
index b06de3f5..8b35d52a 100644
--- a/testModule/module-setup.sh
+++ b/testModule/module-setup.sh
@@ -10,11 +10,14 @@ depends() {
 }
 
 install() {
+    # Loads globally needed useful functions or fixes some native dracut ones.
+    inst_hook cmdline 10 "$moddir/library.sh"
     # NOTE: Priority has to be greater than the network cmdline parsing hooks
     # since we have to modify the some kernel parameter before.
     inst_hook cmdline 100 "$moddir/parse-ip.sh"
+    #inst_simple "$moddir/busybox" /usr/bin/busybox
     #inst_hook pre-mount 20 "$moddir/setup_network.sh"
-    inst_multiple ping ip ifconfig mount sshd htop dhclient tail head cat vim touch
+    inst_multiple ping ip ifconfig sshd htop dhclient tail head cat vim touch sed
     return 0
 }
 
diff --git a/testModule/parse-ip.sh b/testModule/parse-ip.sh
index 75fca7b2..2f720c57 100644
--- a/testModule/parse-ip.sh
+++ b/testModule/parse-ip.sh
@@ -1,19 +1,12 @@
 # Converts ip configuration format given by the pxe pre boot provider to a
 # dracut compatible static ip configuration.
 
-temporary_kernel_commandline_file_path='/temporary_kernel_commandline.txt'
-warn
-warn 'Running ip kernel command line transformation.'
-warn
-
 for parameter in $(getargs ip=); do
+    local temp="$parameter:"
     set --
-    while [ -n "$parameter" ]; do
-        set -- "$@" "${parameter%%:*}"
-        parameter=${parameter#*:}
-        warn
-        warn JAU
-        warn
+    while [ -n "$temp" ]; do
+        set -- "$@" "${temp%%:*}"
+        temp=${temp#*:}
     done
 
     [ -n "$1" ] && ip=$1
@@ -21,17 +14,14 @@ for parameter in $(getargs ip=); do
     [ -n "$3" ] && broadcast_ip=$3
     [ -n "$4" ] && net_mask=$4
 
-    warn
     warn "PXE given net configuration: ip: $ip server_ip: $server_ip broadcast_ip: $broadcast_ip net_mask: $net_mask"
-        warn
     # TODO
-    gateway_ip="$broadcast_ip"
-    echo "ip=$ip::$gateway_ip:$net_mask:dracut_test_client:enp0s3:none" > /etc/cmdline
-    warn
-    warn "Converted ip configuration: \"$ip\"."
-    warn
+    local gateway_ip="$broadcast_ip"
+    repace_cmd test "$ip::$gateway_ip:$net_mask:dracut_test_client:enp0s3:none"
 done
 
-#cat /proc/cmdline | sed --regexp-extended 's/ ip=[^ ]+//g' \
+# NOTE: Doesn't work since dracuts needed version of mount doesn't support
+# binds.
+#cat /proc/cmdline | sed --regexp-extended 's/ip=[^ ]+//g' \
 #    >"$temporary_kernel_commandline_file_path" && \
-#mount -n --bind -o ro "$temporary_kernel_commandline_file_path" /proc/cmdline
+#mount -n --rbind -o ro "$temporary_kernel_commandline_file_path" /proc/cmdline
-- 
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