installer: Allow to start networking without ISO download

[ipfire-2.x.git] / src / installer / start-networking.sh

diff --git a/src/installer/start-networking.sh b/src/installer/start-networking.sh
new file mode 100644 (file)
index 0000000..faeeb17
--- /dev/null
+++ b/src/installer/start-networking.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+###############################################################################
+#                                                                             #
+# IPFire.org - A linux based firewall                                         #
+# Copyright (C) 2014  IPFire Team  <info@ipfire.org>                          #
+#                                                                             #
+# This program is free software: you can redistribute it and/or modify        #
+# it under the terms of the GNU General Public License as published by        #
+# the Free Software Foundation, either version 3 of the License, or           #
+# (at your option) any later version.                                         #
+#                                                                             #
+# This program is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+# GNU General Public License for more details.                                #
+#                                                                             #
+# You should have received a copy of the GNU General Public License           #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
+#                                                                             #
+###############################################################################
+
+function list_interfaces() {
+       local interface
+
+       for interface in /sys/class/net/*; do
+               [ -d "${interface}" ] || continue
+
+               interface="$(basename ${interface})"
+               case "${interface}" in
+                       eth*)
+                               echo "${interface}"
+                               ;;
+               esac
+       done
+}
+
+function try_dhcp() {
+       local interface="${1}"
+
+       # Bring up the interface
+       ip link set "${interface}" up
+
+       # Try to make the lights of the adapter light up
+       ethtool -i "${interface}" &>/dev/null
+
+       # Start the DHCP client
+       dhcpcd "${interface}"
+}
+
+function main() {
+       local interface
+       for interface in $(list_interfaces); do
+               if ! try_dhcp "${interface}"; then
+                       echo "Could not acquire an IP address on ${interface}"
+                       continue
+               fi
+
+               echo "Successfully started on ${interface}"
+               return 0
+       done
+
+       return 1
+}
+
+main