1 files changed, 90 insertions, 0 deletions
diff --git a/abs/core/mkinitcpio-nfs-utils/initcpio-hook-net b/abs/core/mkinitcpio-nfs-utils/initcpio-hook-net
new file mode 100644
index 0000000..4d1ebb9
--- /dev/null
+++ b/abs/core/mkinitcpio-nfs-utils/initcpio-hook-net
@@ -0,0 +1,90 @@
+# vim: set ft=sh:
+run_hook() {
+    local line i net_mac bootif_mac bootif_dev defaultrootpath defaultserver
+    # These variables will be parsed from /tmp/net-*.conf generated by ipconfig
+    local DEVICE
+    local IPV4ADDR IPV4BROADCAST IPV4NETMASK IPV4GATEWAY IPV4DNS0 IPV4DNS1
+    local HOSTNAME DNSDOMAIN NISDOMAIN ROOTSERVER ROOTPATH
+    local filename
+    # /tmp/net-*.conf
+
+    if [ -z "${ip}" -a -n "${nfsaddrs}" ]; then
+        ip="${nfsaddrs}"
+    fi
+
+    if [ -n "${ip}" ]; then
+        if [ -n "${BOOTIF}" ]; then
+            bootif_mac=${BOOTIF#01-}
+            bootif_mac=${bootif_mac//-/:}
+            for i in /sys/class/net/*/address; do
+                read net_mac < ${i}
+                if [ "${bootif_mac}" == "${net_mac}" ]; then
+                    bootif_dev=${i#/sys/class/net/}
+                    bootif_dev=${bootif_dev%/address}
+                    break
+                fi
+            done
+            ip="${ip}::${bootif_dev}"
+        fi
+
+        # setup network and save some values
+        ipconfig "ip=${ip}"
+
+        for conf in /tmp/net-*.conf; do
+            [ -f "$conf" ] && . "$conf"
+        done
+
+        # calculate nfs_server, nfs_path and nfs_option for later nfs mount
+        if [ "${root}" = "/dev/nfs" -o "${nfsroot}" != "" ]; then
+            # parse ROOTPATH if defined by dhcp server
+            if [ -n "${ROOTPATH}" ]; then
+                line="${ROOTPATH}"
+                nfs_server="${line%%:*}"
+                [ "${nfs_server}" = "${line}" ] && nfs_server="${ROOTSERVER}"
+                defaultserver="${nfs_server}"
+                line="${line#*:}"
+                nfs_path="${line}"
+                defaultrootpath="${nfs_path}"
+            else
+                # define a default ROOTPATH
+                if [ "${ROOTPATH}" = "" ]; then
+                    defaultrootpath="/tftpboot/${IPV4ADDR}"
+                fi
+            fi
+
+            # parse nfsroot if present (overrides ROOTPATH)
+            if [ -n "${nfsroot}" ]; then
+                line="${nfsroot}"
+                nfs_server="${line%%:*}"
+                [ -z "${nfs_server}" ] && nfs_server="${defaultserver}"
+                line="${line#*:}"
+                nfs_path="${line%%,*}"
+                line="${line#"${nfs_path}"}"
+                [ -z "${nfs_path}" ] && nfs_path="${defaultrootpath}"
+                nfs_option="${line#","}"
+            fi
+
+            # ensure root and filesystem type are set proper for nfs boot
+            root="/dev/nfs"
+            rootfstype="nfs"
+
+            echo "NFS-Mount: ${nfs_server}:${nfs_path}"
+
+            # set mount handler for NFS
+            mount_handler="nfs_mount_handler"
+        fi
+    fi
+}
+
+nfs_mount_handler() {
+    if [ -z "$nfs_server" -o -z "$nfs_path" ]; then
+        err "Unable to mount root filesystem over NFS: wrong parameters."
+        echo "You are being dropped to a recovery shell"
+        echo "    Type 'exit' to try and continue booting"
+        launch_interactive_shell
+        msg "Trying to continue (this will most likely fail) ..."
+    fi
+    nfsmount ${nfs_option:+-o ${nfs_option}} "${nfs_server}:${nfs_path}" "$1"
+}
+
+# vim: set ft=sh ts=4 sw=4 et: