[archiso] Split archiso_pxe_nbd in two hooks.

One hook only setup the network device (archiso_pxe_common) the other
setup the NBD client (archiso_pxe_nbd).

New bootparam:
    archiso_pxe_srv=IP
        Allow to set an IP different from the PXE server.

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

1 files changed, 34 insertions, 0 deletions

diff --git a/archiso/hooks/archiso_pxe_common b/archiso/hooks/archiso_pxe_common
new file mode 100644
index 0000000..cf9fce8
--- /dev/null
+++ b/archiso/hooks/archiso_pxe_common
@@ -0,0 +1,34 @@
+# vim: set ft=sh:
+
+run_hook () {
+    local i net_mac bootif_mac bootif_dev
+    # 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 [[ -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}"
+
+        . /tmp/net-*.conf
+
+        pxeserver=${ROOTSERVER}
+    fi
+}