Remove remains of the "real" device type
[people/stevee/network.git] / src / udev / network-hotplug-rename
1 #!/bin/bash
2 ###############################################################################
3 #                                                                             #
4 # IPFire.org - A linux based firewall                                         #
5 # Copyright (C) 2011  Michael Tremer & Christian Schmidt                      #
6 #                                                                             #
7 # This program is free software: you can redistribute it and/or modify        #
8 # it under the terms of the GNU General Public License as published by        #
9 # the Free Software Foundation, either version 3 of the License, or           #
10 # (at your option) any later version.                                         #
11 #                                                                             #
12 # This program is distributed in the hope that it will be useful,             #
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
15 # GNU General Public License for more details.                                #
16 #                                                                             #
17 # You should have received a copy of the GNU General Public License           #
18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
19 #                                                                             #
20 ###############################################################################
21
22 # Setup logging.
23 LOG_FACILITY="network-hotplug-rename"
24 LOG_DISABLE_STDOUT="true"
25
26 . /usr/lib/network/functions
27
28 # Read network settings
29 network_settings_read
30
31 # Setup the locking.
32 LOCKFILE="${RUN_DIR}/.rename_lock"
33 function cleanup() {
34         lock_release ${LOCKFILE}
35 }
36 trap cleanup EXIT TERM KILL
37
38 # Check if the INTERFACE variable is properly set.
39 assert isset INTERFACE
40
41 # Log what we are doing here.
42 log DEBUG "Called for interface '${INTERFACE}'."
43
44 # Just check if the device has already vanished.
45 device_exists ${INTERFACE} || exit ${EXIT_ERROR}
46
47 # Acquiring lock for this operation.
48 lock_acquire ${LOCKFILE}
49
50 # Check if the device is already in use and
51 # prevent the script to touch it in any way.
52 if ! device_is_free ${INTERFACE}; then
53         log ERROR "The device '${INTERFACE}' is in use."
54         exit ${EXIT_ERROR}
55 fi
56
57 # Determine the type of the device and then see what
58 # we need to do with it.
59 type=$(device_get_type ${INTERFACE})
60 log DEBUG "Interface '${INTERFACE}' is of type '${type}'."
61
62 case "${type}" in
63         ethernet)
64                 # Search within all the port configurations
65                 # if this port has already been configured.
66                 for port in $(ports_get_all); do
67                         port_cmd hotplug_rename ${port} ${INTERFACE} &>/dev/null
68                         if [ $? -eq ${EXIT_TRUE} ]; then
69                                 echo "${port}"
70                                 exit ${EXIT_OK}
71                         fi
72                 done
73
74                 # If no port configuration could be found,
75                 # we search for the next unused name and return that.
76                 port=$(port_find_free ${PORT_PATTERN})
77                 echo "${port}"
78
79                 log DEBUG "Could not find an existing port configuration for '${INTERFACE}'"
80                 log DEBUG "Renaming interface '${INTERFACE}' to '${port}'"
81                 ;;
82 esac
83
84 exit ${EXIT_OK}